source: GPL/trunk/alsa-kernel/pci/hda/hda_generic.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Universal Interface for Intel High Definition Audio Codec
 *
 * Generic widget tree parser
 *
 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
 */

#include <linux/init.h>
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/sort.h>
#include <linux/delay.h>
#include <linux/ctype.h>
#include <linux/string.h>
#include <linux/bitops.h>
#include <linux/module.h>
#include <linux/leds.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/tlv.h>
#include <sound/hda_codec.h>
#include "hda_local.h"
#include "hda_auto_parser.h"
#include "hda_jack.h"
#include "hda_beep.h"
#include "hda_generic.h"

#ifdef TARGET_OS2
#define KBUILD_MODNAME "hda_generic"
#endif

/**
 * snd_hda_gen_spec_init - initialize hda_gen_spec struct
 * @spec: hda_gen_spec object to initialize
 *
 * Initialize the given hda_gen_spec object.
 */
int snd_hda_gen_spec_init(struct hda_gen_spec *spec)
{
        snd_array_init(&spec->kctls, sizeof(struct snd_kcontrol_new), 32);
        snd_array_init(&spec->paths, sizeof(struct nid_path), 8);
        snd_array_init(&spec->loopback_list, sizeof(struct hda_amp_list), 8);
        mutex_init(&spec->pcm_mutex);
        return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_spec_init);

/**
 * snd_hda_gen_add_kctl - Add a new kctl_new struct from the template
 * @spec: hda_gen_spec object
 * @name: name string to override the template, NULL if unchanged
 * @temp: template for the new kctl
 *
 * Add a new kctl (actually snd_kcontrol_new to be instantiated later)
 * element based on the given snd_kcontrol_new template @temp and the
 * name string @name to the list in @spec.
 * Returns the newly created object or NULL as error.
 */
struct snd_kcontrol_new *
snd_hda_gen_add_kctl(struct hda_gen_spec *spec, const char *name,
                     const struct snd_kcontrol_new *temp)
{
        struct snd_kcontrol_new *knew = snd_array_new(&spec->kctls);
        if (!knew)
                return NULL;
        *knew = *temp;
        if (name)
                knew->name = kstrdup(name, GFP_KERNEL);
        else if (knew->name)
                knew->name = kstrdup(knew->name, GFP_KERNEL);
        if (!knew->name)
                return NULL;
        return knew;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_add_kctl);

static void free_kctls(struct hda_gen_spec *spec)
{
        if (spec->kctls.list) {
                struct snd_kcontrol_new *kctl = spec->kctls.list;
                int i;
                for (i = 0; i < spec->kctls.used; i++)
                        kfree(kctl[i].name);
        }
        snd_array_free(&spec->kctls);
}

static void snd_hda_gen_spec_free(struct hda_gen_spec *spec)
{
        if (!spec)
                return;
        free_kctls(spec);
        snd_array_free(&spec->paths);
        snd_array_free(&spec->loopback_list);
#ifdef CONFIG_SND_HDA_GENERIC_LEDS
        if (spec->led_cdevs[LED_AUDIO_MUTE])
                led_classdev_unregister(spec->led_cdevs[LED_AUDIO_MUTE]);
        if (spec->led_cdevs[LED_AUDIO_MICMUTE])
                led_classdev_unregister(spec->led_cdevs[LED_AUDIO_MICMUTE]);
#endif
}

/*
 * store user hints
 */
static void parse_user_hints(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        int val;

        val = snd_hda_get_bool_hint(codec, "jack_detect");
        if (val >= 0)
                codec->no_jack_detect = !val;
        val = snd_hda_get_bool_hint(codec, "inv_jack_detect");
        if (val >= 0)
                codec->inv_jack_detect = !!val;
        val = snd_hda_get_bool_hint(codec, "trigger_sense");
        if (val >= 0)
                codec->no_trigger_sense = !val;
        val = snd_hda_get_bool_hint(codec, "inv_eapd");
        if (val >= 0)
                codec->inv_eapd = !!val;
        val = snd_hda_get_bool_hint(codec, "pcm_format_first");
        if (val >= 0)
                codec->pcm_format_first = !!val;
        val = snd_hda_get_bool_hint(codec, "sticky_stream");
        if (val >= 0)
                codec->no_sticky_stream = !val;
        val = snd_hda_get_bool_hint(codec, "spdif_status_reset");
        if (val >= 0)
                codec->spdif_status_reset = !!val;
        val = snd_hda_get_bool_hint(codec, "pin_amp_workaround");
        if (val >= 0)
                codec->pin_amp_workaround = !!val;
        val = snd_hda_get_bool_hint(codec, "single_adc_amp");
        if (val >= 0)
                codec->single_adc_amp = !!val;
        val = snd_hda_get_bool_hint(codec, "power_save_node");
        if (val >= 0)
                codec->power_save_node = !!val;

        val = snd_hda_get_bool_hint(codec, "auto_mute");
        if (val >= 0)
                spec->suppress_auto_mute = !val;
        val = snd_hda_get_bool_hint(codec, "auto_mic");
        if (val >= 0)
                spec->suppress_auto_mic = !val;
        val = snd_hda_get_bool_hint(codec, "line_in_auto_switch");
        if (val >= 0)
                spec->line_in_auto_switch = !!val;
        val = snd_hda_get_bool_hint(codec, "auto_mute_via_amp");
        if (val >= 0)
                spec->auto_mute_via_amp = !!val;
        val = snd_hda_get_bool_hint(codec, "need_dac_fix");
        if (val >= 0)
                spec->need_dac_fix = !!val;
        val = snd_hda_get_bool_hint(codec, "primary_hp");
        if (val >= 0)
                spec->no_primary_hp = !val;
        val = snd_hda_get_bool_hint(codec, "multi_io");
        if (val >= 0)
                spec->no_multi_io = !val;
        val = snd_hda_get_bool_hint(codec, "multi_cap_vol");
        if (val >= 0)
                spec->multi_cap_vol = !!val;
        val = snd_hda_get_bool_hint(codec, "inv_dmic_split");
        if (val >= 0)
                spec->inv_dmic_split = !!val;
        val = snd_hda_get_bool_hint(codec, "indep_hp");
        if (val >= 0)
                spec->indep_hp = !!val;
        val = snd_hda_get_bool_hint(codec, "add_stereo_mix_input");
        if (val >= 0)
                spec->add_stereo_mix_input = !!val;
        /* the following two are just for compatibility */
        val = snd_hda_get_bool_hint(codec, "add_out_jack_modes");
        if (val >= 0)
                spec->add_jack_modes = !!val;
        val = snd_hda_get_bool_hint(codec, "add_in_jack_modes");
        if (val >= 0)
                spec->add_jack_modes = !!val;
        val = snd_hda_get_bool_hint(codec, "add_jack_modes");
        if (val >= 0)
                spec->add_jack_modes = !!val;
        val = snd_hda_get_bool_hint(codec, "power_down_unused");
        if (val >= 0)
                spec->power_down_unused = !!val;
        val = snd_hda_get_bool_hint(codec, "add_hp_mic");
        if (val >= 0)
                spec->hp_mic = !!val;
        val = snd_hda_get_bool_hint(codec, "hp_mic_detect");
        if (val >= 0)
                spec->suppress_hp_mic_detect = !val;
        val = snd_hda_get_bool_hint(codec, "vmaster");
        if (val >= 0)
                spec->suppress_vmaster = !val;

        if (!snd_hda_get_int_hint(codec, "mixer_nid", &val))
                spec->mixer_nid = val;
}

/*
 * pin control value accesses
 */

#define update_pin_ctl(codec, pin, val) \
        snd_hda_codec_write_cache(codec, pin, 0, \
                                   AC_VERB_SET_PIN_WIDGET_CONTROL, val)

/* restore the pinctl based on the cached value */
static inline void restore_pin_ctl(struct hda_codec *codec, hda_nid_t pin)
{
        update_pin_ctl(codec, pin, snd_hda_codec_get_pin_target(codec, pin));
}

/* set the pinctl target value and write it if requested */
static void set_pin_target(struct hda_codec *codec, hda_nid_t pin,
                           unsigned int val, bool do_write)
{
        if (!pin)
                return;
        val = snd_hda_correct_pin_ctl(codec, pin, val);
        snd_hda_codec_set_pin_target(codec, pin, val);
        if (do_write)
                update_pin_ctl(codec, pin, val);
}

/* set pinctl target values for all given pins */
static void set_pin_targets(struct hda_codec *codec, int num_pins,
                            hda_nid_t *pins, unsigned int val)
{
        int i;
        for (i = 0; i < num_pins; i++)
                set_pin_target(codec, pins[i], val, false);
}

/*
 * parsing paths
 */

/* return the position of NID in the list, or -1 if not found */
static int find_idx_in_nid_list(hda_nid_t nid, const hda_nid_t *list, int nums)
{
        int i;
        for (i = 0; i < nums; i++)
                if (list[i] == nid)
                        return i;
        return -1;
}

/* return true if the given NID is contained in the path */
static bool is_nid_contained(struct nid_path *path, hda_nid_t nid)
{
        return find_idx_in_nid_list(nid, path->path, path->depth) >= 0;
}

static struct nid_path *get_nid_path(struct hda_codec *codec,
                                     hda_nid_t from_nid, hda_nid_t to_nid,
                                     int anchor_nid)
{
        struct hda_gen_spec *spec = codec->spec;
        struct nid_path *path;
        int i;

        snd_array_for_each(&spec->paths, i, path) {
                if (path->depth <= 0)
                        continue;
                if ((!from_nid || path->path[0] == from_nid) &&
                    (!to_nid || path->path[path->depth - 1] == to_nid)) {
                        if (!anchor_nid ||
                            (anchor_nid > 0 && is_nid_contained(path, anchor_nid)) ||
                            (anchor_nid < 0 && !is_nid_contained(path, anchor_nid)))
                                return path;
                }
        }
        return NULL;
}

/**
 * snd_hda_get_path_idx - get the index number corresponding to the path
 * instance
 * @codec: the HDA codec
 * @path: nid_path object
 *
 * The returned index starts from 1, i.e. the actual array index with offset 1,
 * and zero is handled as an invalid path
 */
int snd_hda_get_path_idx(struct hda_codec *codec, struct nid_path *path)
{
        struct hda_gen_spec *spec = codec->spec;
        struct nid_path *array = spec->paths.list;
        ssize_t idx;

        if (!spec->paths.used)
                return 0;
        idx = path - array;
        if (idx < 0 || idx >= spec->paths.used)
                return 0;
        return idx + 1;
}
EXPORT_SYMBOL_GPL(snd_hda_get_path_idx);

/**
 * snd_hda_get_path_from_idx - get the path instance corresponding to the
 * given index number
 * @codec: the HDA codec
 * @idx: the path index
 */
struct nid_path *snd_hda_get_path_from_idx(struct hda_codec *codec, int idx)
{
        struct hda_gen_spec *spec = codec->spec;

        if (idx <= 0 || idx > spec->paths.used)
                return NULL;
        return snd_array_elem(&spec->paths, idx - 1);
}
EXPORT_SYMBOL_GPL(snd_hda_get_path_from_idx);

/* check whether the given DAC is already found in any existing paths */
static bool is_dac_already_used(struct hda_codec *codec, hda_nid_t nid)
{
        struct hda_gen_spec *spec = codec->spec;
        const struct nid_path *path;
        int i;

        snd_array_for_each(&spec->paths, i, path) {
                if (path->path[0] == nid)
                        return true;
        }
        return false;
}

/* check whether the given two widgets can be connected */
static bool is_reachable_path(struct hda_codec *codec,
                              hda_nid_t from_nid, hda_nid_t to_nid)
{
        if (!from_nid || !to_nid)
                return false;
        return snd_hda_get_conn_index(codec, to_nid, from_nid, true) >= 0;
}

/* nid, dir and idx */
#define AMP_VAL_COMPARE_MASK    (0xffff | (1U << 18) | (0x0f << 19))

/* check whether the given ctl is already assigned in any path elements */
static bool is_ctl_used(struct hda_codec *codec, unsigned int val, int type)
{
        struct hda_gen_spec *spec = codec->spec;
        const struct nid_path *path;
        int i;

        val &= AMP_VAL_COMPARE_MASK;
        snd_array_for_each(&spec->paths, i, path) {
                if ((path->ctls[type] & AMP_VAL_COMPARE_MASK) == val)
                        return true;
        }
        return false;
}

/* check whether a control with the given (nid, dir, idx) was assigned */
static bool is_ctl_associated(struct hda_codec *codec, hda_nid_t nid,
                              int dir, int idx, int type)
{
        unsigned int val = HDA_COMPOSE_AMP_VAL(nid, 3, idx, dir);
        return is_ctl_used(codec, val, type);
}

static void print_nid_path(struct hda_codec *codec,
                           const char *pfx, struct nid_path *path)
{
        char buf[40];
        char *pos = buf;
        int i;

        *pos = 0;
        for (i = 0; i < path->depth; i++)
                pos += scnprintf(pos, sizeof(buf) - (pos - buf), "%s%02x",
                                 pos != buf ? ":" : "",
                                 path->path[i]);

        codec_dbg(codec, "%s path: depth=%d '%s'\n", pfx, path->depth, buf);
}

/* called recursively */
static bool __parse_nid_path(struct hda_codec *codec,
                             hda_nid_t from_nid, hda_nid_t to_nid,
                             int anchor_nid, struct nid_path *path,
                             int depth)
{
        const hda_nid_t *conn;
        int i, nums;

        if (to_nid == anchor_nid)
                anchor_nid = 0; /* anchor passed */
        else if (to_nid == (hda_nid_t)(-anchor_nid))
                return false; /* hit the exclusive nid */

        nums = snd_hda_get_conn_list(codec, to_nid, &conn);
        for (i = 0; i < nums; i++) {
                if (conn[i] != from_nid) {
                        /* special case: when from_nid is 0,
                         * try to find an empty DAC
                         */
                        if (from_nid ||
                            get_wcaps_type(get_wcaps(codec, conn[i])) != AC_WID_AUD_OUT ||
                            is_dac_already_used(codec, conn[i]))
                                continue;
                }
                /* anchor is not requested or already passed? */
                if (anchor_nid <= 0)
                        goto found;
        }
        if (depth >= MAX_NID_PATH_DEPTH)
                return false;
        for (i = 0; i < nums; i++) {
                unsigned int type;
                type = get_wcaps_type(get_wcaps(codec, conn[i]));
                if (type == AC_WID_AUD_OUT || type == AC_WID_AUD_IN ||
                    type == AC_WID_PIN)
                        continue;
                if (__parse_nid_path(codec, from_nid, conn[i],
                                     anchor_nid, path, depth + 1))
                        goto found;
        }
        return false;

 found:
        path->path[path->depth] = conn[i];
        path->idx[path->depth + 1] = i;
        if (nums > 1 && get_wcaps_type(get_wcaps(codec, to_nid)) != AC_WID_AUD_MIX)
                path->multi[path->depth + 1] = 1;
        path->depth++;
        return true;
}

/*
 * snd_hda_parse_nid_path - parse the widget path from the given nid to
 * the target nid
 * @codec: the HDA codec
 * @from_nid: the NID where the path start from
 * @to_nid: the NID where the path ends at
 * @anchor_nid: the anchor indication
 * @path: the path object to store the result
 *
 * Returns true if a matching path is found.
 *
 * The parsing behavior depends on parameters:
 * when @from_nid is 0, try to find an empty DAC;
 * when @anchor_nid is set to a positive value, only paths through the widget
 * with the given value are evaluated.
 * when @anchor_nid is set to a negative value, paths through the widget
 * with the negative of given value are excluded, only other paths are chosen.
 * when @anchor_nid is zero, no special handling about path selection.
 */
static bool snd_hda_parse_nid_path(struct hda_codec *codec, hda_nid_t from_nid,
                            hda_nid_t to_nid, int anchor_nid,
                            struct nid_path *path)
{
        if (__parse_nid_path(codec, from_nid, to_nid, anchor_nid, path, 1)) {
                path->path[path->depth] = to_nid;
                path->depth++;
                return true;
        }
        return false;
}

/**
 * snd_hda_add_new_path - parse the path between the given NIDs and
 * add to the path list
 * @codec: the HDA codec
 * @from_nid: the NID where the path start from
 * @to_nid: the NID where the path ends at
 * @anchor_nid: the anchor indication, see snd_hda_parse_nid_path()
 *
 * If no valid path is found, returns NULL.
 */
struct nid_path *
snd_hda_add_new_path(struct hda_codec *codec, hda_nid_t from_nid,
                     hda_nid_t to_nid, int anchor_nid)
{
        struct hda_gen_spec *spec = codec->spec;
        struct nid_path *path;

        if (from_nid && to_nid && !is_reachable_path(codec, from_nid, to_nid))
                return NULL;

        /* check whether the path has been already added */
        path = get_nid_path(codec, from_nid, to_nid, anchor_nid);
        if (path)
                return path;

        path = snd_array_new(&spec->paths);
        if (!path)
                return NULL;
        memset(path, 0, sizeof(*path));
        if (snd_hda_parse_nid_path(codec, from_nid, to_nid, anchor_nid, path))
                return path;
        /* push back */
        spec->paths.used--;
        return NULL;
}
EXPORT_SYMBOL_GPL(snd_hda_add_new_path);

/* clear the given path as invalid so that it won't be picked up later */
static void invalidate_nid_path(struct hda_codec *codec, int idx)
{
        struct nid_path *path = snd_hda_get_path_from_idx(codec, idx);
        if (!path)
                return;
        memset(path, 0, sizeof(*path));
}

/* return a DAC if paired to the given pin by codec driver */
static hda_nid_t get_preferred_dac(struct hda_codec *codec, hda_nid_t pin)
{
        struct hda_gen_spec *spec = codec->spec;
        const hda_nid_t *list = spec->preferred_dacs;

        if (!list)
                return 0;
        for (; *list; list += 2)
                if (*list == pin)
                        return list[1];
        return 0;
}

/* look for an empty DAC slot */
static hda_nid_t look_for_dac(struct hda_codec *codec, hda_nid_t pin,
                              bool is_digital)
{
        struct hda_gen_spec *spec = codec->spec;
        bool cap_digital;
        int i;

        for (i = 0; i < spec->num_all_dacs; i++) {
                hda_nid_t nid = spec->all_dacs[i];
                if (!nid || is_dac_already_used(codec, nid))
                        continue;
                cap_digital = !!(get_wcaps(codec, nid) & AC_WCAP_DIGITAL);
                if (is_digital != cap_digital)
                        continue;
                if (is_reachable_path(codec, nid, pin))
                        return nid;
        }
        return 0;
}

/* replace the channels in the composed amp value with the given number */
static unsigned int amp_val_replace_channels(unsigned int val, unsigned int chs)
{
        val &= ~(0x3U << 16);
        val |= chs << 16;
        return val;
}

static bool same_amp_caps(struct hda_codec *codec, hda_nid_t nid1,
                          hda_nid_t nid2, int dir)
{
        if (!(get_wcaps(codec, nid1) & (1 << (dir + 1))))
                return !(get_wcaps(codec, nid2) & (1 << (dir + 1)));
        return (query_amp_caps(codec, nid1, dir) ==
                query_amp_caps(codec, nid2, dir));
}

/* look for a widget suitable for assigning a mute switch in the path */
static hda_nid_t look_for_out_mute_nid(struct hda_codec *codec,
                                       struct nid_path *path)
{
        int i;

        for (i = path->depth - 1; i >= 0; i--) {
                if (nid_has_mute(codec, path->path[i], HDA_OUTPUT))
                        return path->path[i];
                if (i != path->depth - 1 && i != 0 &&
                    nid_has_mute(codec, path->path[i], HDA_INPUT))
                        return path->path[i];
        }
        return 0;
}

/* look for a widget suitable for assigning a volume ctl in the path */
static hda_nid_t look_for_out_vol_nid(struct hda_codec *codec,
                                      struct nid_path *path)
{
        struct hda_gen_spec *spec = codec->spec;
        int i;

        for (i = path->depth - 1; i >= 0; i--) {
                hda_nid_t nid = path->path[i];
                if ((spec->out_vol_mask >> nid) & 1)
                        continue;
                if (nid_has_volume(codec, nid, HDA_OUTPUT))
                        return nid;
        }
        return 0;
}

/*
 * path activation / deactivation
 */

/* can have the amp-in capability? */
static bool has_amp_in(struct hda_codec *codec, struct nid_path *path, int idx)
{
        hda_nid_t nid = path->path[idx];
        unsigned int caps = get_wcaps(codec, nid);
        unsigned int type = get_wcaps_type(caps);

        if (!(caps & AC_WCAP_IN_AMP))
                return false;
        if (type == AC_WID_PIN && idx > 0) /* only for input pins */
                return false;
        return true;
}

/* can have the amp-out capability? */
static bool has_amp_out(struct hda_codec *codec, struct nid_path *path, int idx)
{
        hda_nid_t nid = path->path[idx];
        unsigned int caps = get_wcaps(codec, nid);
        unsigned int type = get_wcaps_type(caps);

        if (!(caps & AC_WCAP_OUT_AMP))
                return false;
        if (type == AC_WID_PIN && !idx) /* only for output pins */
                return false;
        return true;
}

/* check whether the given (nid,dir,idx) is active */
static bool is_active_nid(struct hda_codec *codec, hda_nid_t nid,
                          unsigned int dir, unsigned int idx)
{
        struct hda_gen_spec *spec = codec->spec;
        int type = get_wcaps_type(get_wcaps(codec, nid));
        const struct nid_path *path;
        int i, n;

        if (nid == codec->core.afg)
                return true;

        snd_array_for_each(&spec->paths, n, path) {
                if (!path->active)
                        continue;
                if (codec->power_save_node) {
                        if (!path->stream_enabled)
                                continue;
                        /* ignore unplugged paths except for DAC/ADC */
                        if (!(path->pin_enabled || path->pin_fixed) &&
                            type != AC_WID_AUD_OUT && type != AC_WID_AUD_IN)
                                continue;
                }
                for (i = 0; i < path->depth; i++) {
                        if (path->path[i] == nid) {
                                if (dir == HDA_OUTPUT || idx == -1 ||
                                    path->idx[i] == idx)
                                        return true;
                                break;
                        }
                }
        }
        return false;
}

/* check whether the NID is referred by any active paths */
#define is_active_nid_for_any(codec, nid) \
        is_active_nid(codec, nid, HDA_OUTPUT, -1)

/* get the default amp value for the target state */
static int get_amp_val_to_activate(struct hda_codec *codec, hda_nid_t nid,
                                   int dir, unsigned int caps, bool enable)
{
        unsigned int val = 0;

        if (caps & AC_AMPCAP_NUM_STEPS) {
                /* set to 0dB */
                if (enable)
                        val = (caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
        }
        if (caps & (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) {
                if (!enable)
                        val |= HDA_AMP_MUTE;
        }
        return val;
}

/* is this a stereo widget or a stereo-to-mono mix? */
static bool is_stereo_amps(struct hda_codec *codec, hda_nid_t nid, int dir)
{
        unsigned int wcaps = get_wcaps(codec, nid);
        hda_nid_t conn;

        if (wcaps & AC_WCAP_STEREO)
                return true;
        if (dir != HDA_INPUT || get_wcaps_type(wcaps) != AC_WID_AUD_MIX)
                return false;
        if (snd_hda_get_num_conns(codec, nid) != 1)
                return false;
        if (snd_hda_get_connections(codec, nid, &conn, 1) < 0)
                return false;
        return !!(get_wcaps(codec, conn) & AC_WCAP_STEREO);
}

/* initialize the amp value (only at the first time) */
static void init_amp(struct hda_codec *codec, hda_nid_t nid, int dir, int idx)
{
        unsigned int caps = query_amp_caps(codec, nid, dir);
        int val = get_amp_val_to_activate(codec, nid, dir, caps, false);

        if (is_stereo_amps(codec, nid, dir))
                snd_hda_codec_amp_init_stereo(codec, nid, dir, idx, 0xff, val);
        else
                snd_hda_codec_amp_init(codec, nid, 0, dir, idx, 0xff, val);
}

/* update the amp, doing in stereo or mono depending on NID */
static int update_amp(struct hda_codec *codec, hda_nid_t nid, int dir, int idx,
                      unsigned int mask, unsigned int val)
{
        if (is_stereo_amps(codec, nid, dir))
                return snd_hda_codec_amp_stereo(codec, nid, dir, idx,
                                                mask, val);
        else
                return snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
                                                mask, val);
}

/* calculate amp value mask we can modify;
 * if the given amp is controlled by mixers, don't touch it
 */
static unsigned int get_amp_mask_to_modify(struct hda_codec *codec,
                                           hda_nid_t nid, int dir, int idx,
                                           unsigned int caps)
{
        unsigned int mask = 0xff;

        if (caps & (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) {
                if (is_ctl_associated(codec, nid, dir, idx, NID_PATH_MUTE_CTL))
                        mask &= ~0x80;
        }
        if (caps & AC_AMPCAP_NUM_STEPS) {
                if (is_ctl_associated(codec, nid, dir, idx, NID_PATH_VOL_CTL) ||
                    is_ctl_associated(codec, nid, dir, idx, NID_PATH_BOOST_CTL))
                        mask &= ~0x7f;
        }
        return mask;
}

static void activate_amp(struct hda_codec *codec, hda_nid_t nid, int dir,
                         int idx, int idx_to_check, bool enable)
{
        unsigned int caps;
        unsigned int mask, val;

        caps = query_amp_caps(codec, nid, dir);
        val = get_amp_val_to_activate(codec, nid, dir, caps, enable);
        mask = get_amp_mask_to_modify(codec, nid, dir, idx_to_check, caps);
        if (!mask)
                return;

        val &= mask;
        update_amp(codec, nid, dir, idx, mask, val);
}

static void check_and_activate_amp(struct hda_codec *codec, hda_nid_t nid,
                                   int dir, int idx, int idx_to_check,
                                   bool enable)
{
        /* check whether the given amp is still used by others */
        if (!enable && is_active_nid(codec, nid, dir, idx_to_check))
                return;
        activate_amp(codec, nid, dir, idx, idx_to_check, enable);
}

static void activate_amp_out(struct hda_codec *codec, struct nid_path *path,
                             int i, bool enable)
{
        hda_nid_t nid = path->path[i];
        init_amp(codec, nid, HDA_OUTPUT, 0);
        check_and_activate_amp(codec, nid, HDA_OUTPUT, 0, 0, enable);
}

static void activate_amp_in(struct hda_codec *codec, struct nid_path *path,
                            int i, bool enable, bool add_aamix)
{
        struct hda_gen_spec *spec = codec->spec;
        const hda_nid_t *conn;
        int n, nums, idx;
        int type;
        hda_nid_t nid = path->path[i];

        nums = snd_hda_get_conn_list(codec, nid, &conn);
        if (nums < 0)
                return;
        type = get_wcaps_type(get_wcaps(codec, nid));
        if (type == AC_WID_PIN ||
            (type == AC_WID_AUD_IN && codec->single_adc_amp)) {
                nums = 1;
                idx = 0;
        } else
                idx = path->idx[i];

        for (n = 0; n < nums; n++)
                init_amp(codec, nid, HDA_INPUT, n);

        /* here is a little bit tricky in comparison with activate_amp_out();
         * when aa-mixer is available, we need to enable the path as well
         */
        for (n = 0; n < nums; n++) {
                if (n != idx) {
                        if (conn[n] != spec->mixer_merge_nid)
                                continue;
                        /* when aamix is disabled, force to off */
                        if (!add_aamix) {
                                activate_amp(codec, nid, HDA_INPUT, n, n, false);
                                continue;
                        }
                }
                check_and_activate_amp(codec, nid, HDA_INPUT, n, idx, enable);
        }
}

/* sync power of each widget in the given path */
static hda_nid_t path_power_update(struct hda_codec *codec,
                                   struct nid_path *path,
                                   bool allow_powerdown)
{
        hda_nid_t nid, changed = 0;
        int i, state, power;

        for (i = 0; i < path->depth; i++) {
                nid = path->path[i];
                if (!(get_wcaps(codec, nid) & AC_WCAP_POWER))
                        continue;
                if (nid == codec->core.afg)
                        continue;
                if (!allow_powerdown || is_active_nid_for_any(codec, nid))
                        state = AC_PWRST_D0;
                else
                        state = AC_PWRST_D3;
                power = snd_hda_codec_read(codec, nid, 0,
                                           AC_VERB_GET_POWER_STATE, 0);
                if (power != (state | (state << 4))) {
                        snd_hda_codec_write(codec, nid, 0,
                                            AC_VERB_SET_POWER_STATE, state);
                        changed = nid;
                        /* all known codecs seem to be capable to handl
                         * widgets state even in D3, so far.
                         * if any new codecs need to restore the widget
                         * states after D0 transition, call the function
                         * below.
                         */
#if 0 /* disabled */
                        if (state == AC_PWRST_D0)
                                snd_hdac_regmap_sync_node(&codec->core, nid);
#endif
                }
        }
        return changed;
}

/* do sync with the last power state change */
static void sync_power_state_change(struct hda_codec *codec, hda_nid_t nid)
{
        if (nid) {
                msleep(10);
                snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_POWER_STATE, 0);
        }
}

/**
 * snd_hda_activate_path - activate or deactivate the given path
 * @codec: the HDA codec
 * @path: the path to activate/deactivate
 * @enable: flag to activate or not
 * @add_aamix: enable the input from aamix NID
 *
 * If @add_aamix is set, enable the input from aa-mix NID as well (if any).
 */
void snd_hda_activate_path(struct hda_codec *codec, struct nid_path *path,
                           bool enable, bool add_aamix)
{
        struct hda_gen_spec *spec = codec->spec;
        int i;

        path->active = enable;

        /* make sure the widget is powered up */
        if (enable && (spec->power_down_unused || codec->power_save_node))
                path_power_update(codec, path, codec->power_save_node);

        for (i = path->depth - 1; i >= 0; i--) {
                hda_nid_t nid = path->path[i];

                if (enable && path->multi[i])
                        snd_hda_codec_write_cache(codec, nid, 0,
                                            AC_VERB_SET_CONNECT_SEL,
                                            path->idx[i]);
                if (has_amp_in(codec, path, i))
                        activate_amp_in(codec, path, i, enable, add_aamix);
                if (has_amp_out(codec, path, i))
                        activate_amp_out(codec, path, i, enable);
        }
}
EXPORT_SYMBOL_GPL(snd_hda_activate_path);

/* if the given path is inactive, put widgets into D3 (only if suitable) */
static void path_power_down_sync(struct hda_codec *codec, struct nid_path *path)
{
        struct hda_gen_spec *spec = codec->spec;

        if (!(spec->power_down_unused || codec->power_save_node) || path->active)
                return;
        sync_power_state_change(codec, path_power_update(codec, path, true));
}

/* turn on/off EAPD on the given pin */
static void set_pin_eapd(struct hda_codec *codec, hda_nid_t pin, bool enable)
{
        struct hda_gen_spec *spec = codec->spec;
        if (spec->own_eapd_ctl ||
            !(snd_hda_query_pin_caps(codec, pin) & AC_PINCAP_EAPD))
                return;
        if (spec->keep_eapd_on && !enable)
                return;
        if (codec->inv_eapd)
                enable = !enable;
        snd_hda_codec_write_cache(codec, pin, 0,
                                   AC_VERB_SET_EAPD_BTLENABLE,
                                   enable ? 0x02 : 0x00);
}

/* re-initialize the path specified by the given path index */
static void resume_path_from_idx(struct hda_codec *codec, int path_idx)
{
        struct nid_path *path = snd_hda_get_path_from_idx(codec, path_idx);
        if (path)
                snd_hda_activate_path(codec, path, path->active, false);
}


/*
 * Helper functions for creating mixer ctl elements
 */

static int hda_gen_mixer_mute_put(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol);
static int hda_gen_bind_mute_get(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol);
static int hda_gen_bind_mute_put(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol);

enum {
        HDA_CTL_WIDGET_VOL,
        HDA_CTL_WIDGET_MUTE,
        HDA_CTL_BIND_MUTE,
};
static const struct snd_kcontrol_new control_templates[] = {
        HDA_CODEC_VOLUME(NULL, 0, 0, 0),
        /* only the put callback is replaced for handling the special mute */
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .subdevice = HDA_SUBDEV_AMP_FLAG,
                .info = snd_hda_mixer_amp_switch_info,
                .get = snd_hda_mixer_amp_switch_get,
                .put = hda_gen_mixer_mute_put, /* replaced */
                .private_value = HDA_COMPOSE_AMP_VAL(0, 3, 0, 0),
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                .info = snd_hda_mixer_amp_switch_info,
                .get = hda_gen_bind_mute_get,
                .put = hda_gen_bind_mute_put, /* replaced */
                .private_value = HDA_COMPOSE_AMP_VAL(0, 3, 0, 0),
        },
};

/* add dynamic controls from template */
static struct snd_kcontrol_new *
add_control(struct hda_gen_spec *spec, int type, const char *name,
                       int cidx, unsigned long val)
{
        struct snd_kcontrol_new *knew;

        knew = snd_hda_gen_add_kctl(spec, name, &control_templates[type]);
        if (!knew)
                return NULL;
        knew->index = cidx;
        if (get_amp_nid_(val))
                knew->subdevice = HDA_SUBDEV_AMP_FLAG;
        if (knew->access == 0)
                knew->access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
        knew->private_value = val;
        return knew;
}

static int add_control_with_pfx(struct hda_gen_spec *spec, int type,
                                const char *pfx, const char *dir,
                                const char *sfx, int cidx, unsigned long val)
{
        char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
        int len;

        len = snprintf(name, sizeof(name), "%s %s %s", pfx, dir, sfx);
        if (snd_BUG_ON(len >= sizeof(name)))
                return -EINVAL;
        if (!add_control(spec, type, name, cidx, val))
                return -ENOMEM;
        return 0;
}

#define add_pb_vol_ctrl(spec, type, pfx, val)                   \
        add_control_with_pfx(spec, type, pfx, "Playback", "Volume", 0, val)
#define add_pb_sw_ctrl(spec, type, pfx, val)                    \
        add_control_with_pfx(spec, type, pfx, "Playback", "Switch", 0, val)
#define __add_pb_vol_ctrl(spec, type, pfx, cidx, val)                   \
        add_control_with_pfx(spec, type, pfx, "Playback", "Volume", cidx, val)
#define __add_pb_sw_ctrl(spec, type, pfx, cidx, val)                    \
        add_control_with_pfx(spec, type, pfx, "Playback", "Switch", cidx, val)

static int add_vol_ctl(struct hda_codec *codec, const char *pfx, int cidx,
                       unsigned int chs, struct nid_path *path)
{
        unsigned int val;
        if (!path)
                return 0;
        val = path->ctls[NID_PATH_VOL_CTL];
        if (!val)
                return 0;
        val = amp_val_replace_channels(val, chs);
        return __add_pb_vol_ctrl(codec->spec, HDA_CTL_WIDGET_VOL, pfx, cidx, val);
}

/* return the channel bits suitable for the given path->ctls[] */
static int get_default_ch_nums(struct hda_codec *codec, struct nid_path *path,
                               int type)
{
        int chs = 1; /* mono (left only) */
        if (path) {
                hda_nid_t nid = get_amp_nid_(path->ctls[type]);
                if (nid && (get_wcaps(codec, nid) & AC_WCAP_STEREO))
                        chs = 3; /* stereo */
        }
        return chs;
}

static int add_stereo_vol(struct hda_codec *codec, const char *pfx, int cidx,
                          struct nid_path *path)
{
        int chs = get_default_ch_nums(codec, path, NID_PATH_VOL_CTL);
        return add_vol_ctl(codec, pfx, cidx, chs, path);
}

/* create a mute-switch for the given mixer widget;
 * if it has multiple sources (e.g. DAC and loopback), create a bind-mute
 */
static int add_sw_ctl(struct hda_codec *codec, const char *pfx, int cidx,
                      unsigned int chs, struct nid_path *path)
{
        unsigned int val;
        int type = HDA_CTL_WIDGET_MUTE;

        if (!path)
                return 0;
        val = path->ctls[NID_PATH_MUTE_CTL];
        if (!val)
                return 0;
        val = amp_val_replace_channels(val, chs);
        if (get_amp_direction_(val) == HDA_INPUT) {
                hda_nid_t nid = get_amp_nid_(val);
                int nums = snd_hda_get_num_conns(codec, nid);
                if (nums > 1) {
                        type = HDA_CTL_BIND_MUTE;
                        val |= nums << 19;
                }
        }
        return __add_pb_sw_ctrl(codec->spec, type, pfx, cidx, val);
}

static int add_stereo_sw(struct hda_codec *codec, const char *pfx,
                                  int cidx, struct nid_path *path)
{
        int chs = get_default_ch_nums(codec, path, NID_PATH_MUTE_CTL);
        return add_sw_ctl(codec, pfx, cidx, chs, path);
}

/* playback mute control with the software mute bit check */
static void sync_auto_mute_bits(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;

        if (spec->auto_mute_via_amp) {
                hda_nid_t nid = get_amp_nid(kcontrol);
                bool enabled = !((spec->mute_bits >> nid) & 1);
                ucontrol->value.integer.value[0] &= enabled;
                ucontrol->value.integer.value[1] &= enabled;
        }
}

static int hda_gen_mixer_mute_put(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol)
{
        sync_auto_mute_bits(kcontrol, ucontrol);
        return snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
}

/*
 * Bound mute controls
 */
#define AMP_VAL_IDX_SHIFT       19
#define AMP_VAL_IDX_MASK        (0x0f<<19)

static int hda_gen_bind_mute_get(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        unsigned long pval;
        int err;

        mutex_lock(&codec->control_mutex);
        pval = kcontrol->private_value;
        kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
        err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
        kcontrol->private_value = pval;
        mutex_unlock(&codec->control_mutex);
        return err;
}

static int hda_gen_bind_mute_put(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        unsigned long pval;
        int i, indices, err = 0, change = 0;

        sync_auto_mute_bits(kcontrol, ucontrol);

        mutex_lock(&codec->control_mutex);
        pval = kcontrol->private_value;
        indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
        for (i = 0; i < indices; i++) {
                kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) |
                        (i << AMP_VAL_IDX_SHIFT);
                err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
                if (err < 0)
                        break;
                change |= err;
        }
        kcontrol->private_value = pval;
        mutex_unlock(&codec->control_mutex);
        return err < 0 ? err : change;
}

/* any ctl assigned to the path with the given index? */
static bool path_has_mixer(struct hda_codec *codec, int path_idx, int ctl_type)
{
        struct nid_path *path = snd_hda_get_path_from_idx(codec, path_idx);
        return path && path->ctls[ctl_type];
}

static const char * const channel_name[] = {
        "Front", "Surround", "CLFE", "Side", "Back",
};

/* give some appropriate ctl name prefix for the given line out channel */
static const char *get_line_out_pfx(struct hda_codec *codec, int ch,
                                    int *index, int ctl_type)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;

        *index = 0;
        if (cfg->line_outs == 1 && !spec->multi_ios &&
            !codec->force_pin_prefix &&
            !cfg->hp_outs && !cfg->speaker_outs)
                return spec->vmaster_mute.hook ? "PCM" : "Master";

        /* if there is really a single DAC used in the whole output paths,
         * use it master (or "PCM" if a vmaster hook is present)
         */
        if (spec->multiout.num_dacs == 1 && !spec->mixer_nid &&
            !codec->force_pin_prefix &&
            !spec->multiout.hp_out_nid[0] && !spec->multiout.extra_out_nid[0])
                return spec->vmaster_mute.hook ? "PCM" : "Master";

        /* multi-io channels */
        if (ch >= cfg->line_outs)
                goto fixed_name;

        switch (cfg->line_out_type) {
        case AUTO_PIN_SPEAKER_OUT:
                /* if the primary channel vol/mute is shared with HP volume,
                 * don't name it as Speaker
                 */
                if (!ch && cfg->hp_outs &&
                    !path_has_mixer(codec, spec->hp_paths[0], ctl_type))
                        break;
                if (cfg->line_outs == 1)
                        return "Speaker";
                if (cfg->line_outs == 2)
                        return ch ? "Bass Speaker" : "Speaker";
                break;
        case AUTO_PIN_HP_OUT:
                /* if the primary channel vol/mute is shared with spk volume,
                 * don't name it as Headphone
                 */
                if (!ch && cfg->speaker_outs &&
                    !path_has_mixer(codec, spec->speaker_paths[0], ctl_type))
                        break;
                /* for multi-io case, only the primary out */
                if (ch && spec->multi_ios)
                        break;
                *index = ch;
                return "Headphone";
        case AUTO_PIN_LINE_OUT:
                /* This deals with the case where one HP or one Speaker or
                 * one HP + one Speaker need to share the DAC with LO
                 */
                if (!ch) {
                        bool hp_lo_shared = false, spk_lo_shared = false;

                        if (cfg->speaker_outs)
                                spk_lo_shared = !path_has_mixer(codec,
                                                                spec->speaker_paths[0], ctl_type);
                        if (cfg->hp_outs)
                                hp_lo_shared = !path_has_mixer(codec, spec->hp_paths[0], ctl_type);
                        if (hp_lo_shared && spk_lo_shared)
                                return spec->vmaster_mute.hook ? "PCM" : "Master";
                        if (hp_lo_shared)
                                return "Headphone+LO";
                        if (spk_lo_shared)
                                return "Speaker+LO";
                }
        }

        /* for a single channel output, we don't have to name the channel */
        if (cfg->line_outs == 1 && !spec->multi_ios)
                return "Line Out";

 fixed_name:
        if (ch >= ARRAY_SIZE(channel_name)) {
                snd_BUG();
                return "PCM";
        }

        return channel_name[ch];
}

/*
 * Parse output paths
 */

/* badness definition */
enum {
        /* No primary DAC is found for the main output */
        BAD_NO_PRIMARY_DAC = 0x10000,
        /* No DAC is found for the extra output */
        BAD_NO_DAC = 0x4000,
        /* No possible multi-ios */
        BAD_MULTI_IO = 0x120,
        /* No individual DAC for extra output */
        BAD_NO_EXTRA_DAC = 0x102,
        /* No individual DAC for extra surrounds */
        BAD_NO_EXTRA_SURR_DAC = 0x101,
        /* Primary DAC shared with main surrounds */
        BAD_SHARED_SURROUND = 0x100,
        /* No independent HP possible */
        BAD_NO_INDEP_HP = 0x10,
        /* Primary DAC shared with main CLFE */
        BAD_SHARED_CLFE = 0x10,
        /* Primary DAC shared with extra surrounds */
        BAD_SHARED_EXTRA_SURROUND = 0x10,
        /* Volume widget is shared */
        BAD_SHARED_VOL = 0x10,
};

/* look for widgets in the given path which are appropriate for
 * volume and mute controls, and assign the values to ctls[].
 *
 * When no appropriate widget is found in the path, the badness value
 * is incremented depending on the situation.  The function returns the
 * total badness for both volume and mute controls.
 */
static int assign_out_path_ctls(struct hda_codec *codec, struct nid_path *path)
{
        struct hda_gen_spec *spec = codec->spec;
        hda_nid_t nid;
        unsigned int val;
        int badness = 0;

        if (!path)
                return BAD_SHARED_VOL * 2;

        if (path->ctls[NID_PATH_VOL_CTL] ||
            path->ctls[NID_PATH_MUTE_CTL])
                return 0; /* already evaluated */

        nid = look_for_out_vol_nid(codec, path);
        if (nid) {
                val = HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT);
                if (spec->dac_min_mute)
                        val |= HDA_AMP_VAL_MIN_MUTE;
                if (is_ctl_used(codec, val, NID_PATH_VOL_CTL))
                        badness += BAD_SHARED_VOL;
                else
                        path->ctls[NID_PATH_VOL_CTL] = val;
        } else
                badness += BAD_SHARED_VOL;
        nid = look_for_out_mute_nid(codec, path);
        if (nid) {
                unsigned int wid_type = get_wcaps_type(get_wcaps(codec, nid));
                if (wid_type == AC_WID_PIN || wid_type == AC_WID_AUD_OUT ||
                    nid_has_mute(codec, nid, HDA_OUTPUT))
                        val = HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT);
                else
                        val = HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_INPUT);
                if (is_ctl_used(codec, val, NID_PATH_MUTE_CTL))
                        badness += BAD_SHARED_VOL;
                else
                        path->ctls[NID_PATH_MUTE_CTL] = val;
        } else
                badness += BAD_SHARED_VOL;
        return badness;
}

const struct badness_table hda_main_out_badness = {
        .no_primary_dac = BAD_NO_PRIMARY_DAC,
        .no_dac = BAD_NO_DAC,
        .shared_primary = BAD_NO_PRIMARY_DAC,
        .shared_surr = BAD_SHARED_SURROUND,
        .shared_clfe = BAD_SHARED_CLFE,
        .shared_surr_main = BAD_SHARED_SURROUND,
};
EXPORT_SYMBOL_GPL(hda_main_out_badness);

const struct badness_table hda_extra_out_badness = {
        .no_primary_dac = BAD_NO_DAC,
        .no_dac = BAD_NO_DAC,
        .shared_primary = BAD_NO_EXTRA_DAC,
        .shared_surr = BAD_SHARED_EXTRA_SURROUND,
        .shared_clfe = BAD_SHARED_EXTRA_SURROUND,
        .shared_surr_main = BAD_NO_EXTRA_SURR_DAC,
};
EXPORT_SYMBOL_GPL(hda_extra_out_badness);

/* get the DAC of the primary output corresponding to the given array index */
static hda_nid_t get_primary_out(struct hda_codec *codec, int idx)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;

        if (cfg->line_outs > idx)
                return spec->private_dac_nids[idx];
        idx -= cfg->line_outs;
        if (spec->multi_ios > idx)
                return spec->multi_io[idx].dac;
        return 0;
}

/* return the DAC if it's reachable, otherwise zero */
static inline hda_nid_t try_dac(struct hda_codec *codec,
                                hda_nid_t dac, hda_nid_t pin)
{
        return is_reachable_path(codec, dac, pin) ? dac : 0;
}

/* try to assign DACs to pins and return the resultant badness */
static int try_assign_dacs(struct hda_codec *codec, int num_outs,
                           const hda_nid_t *pins, hda_nid_t *dacs,
                           int *path_idx,
                           const struct badness_table *bad)
{
        struct hda_gen_spec *spec = codec->spec;
        int i, j;
        int badness = 0;
        hda_nid_t dac;

        if (!num_outs)
                return 0;

        for (i = 0; i < num_outs; i++) {
                struct nid_path *path;
                hda_nid_t pin = pins[i];

                if (!spec->preferred_dacs) {
                        path = snd_hda_get_path_from_idx(codec, path_idx[i]);
                        if (path) {
                                badness += assign_out_path_ctls(codec, path);
                                continue;
                        }
                }

                dacs[i] = get_preferred_dac(codec, pin);
                if (dacs[i]) {
                        if (is_dac_already_used(codec, dacs[i]))
                                badness += bad->shared_primary;
                } else if (spec->preferred_dacs) {
                        badness += BAD_NO_PRIMARY_DAC;
                }

                if (!dacs[i])
                        dacs[i] = look_for_dac(codec, pin, false);
                if (!dacs[i] && !i) {
                        /* try to steal the DAC of surrounds for the front */
                        for (j = 1; j < num_outs; j++) {
                                if (is_reachable_path(codec, dacs[j], pin)) {
                                        dacs[0] = dacs[j];
                                        dacs[j] = 0;
                                        invalidate_nid_path(codec, path_idx[j]);
                                        path_idx[j] = 0;
                                        break;
                                }
                        }
                }
                dac = dacs[i];
                if (!dac) {
                        if (num_outs > 2)
                                dac = try_dac(codec, get_primary_out(codec, i), pin);
                        if (!dac)
                                dac = try_dac(codec, dacs[0], pin);
                        if (!dac)
                                dac = try_dac(codec, get_primary_out(codec, i), pin);
                        if (dac) {
                                if (!i)
                                        badness += bad->shared_primary;
                                else if (i == 1)
                                        badness += bad->shared_surr;
                                else
                                        badness += bad->shared_clfe;
                        } else if (is_reachable_path(codec, spec->private_dac_nids[0], pin)) {
                                dac = spec->private_dac_nids[0];
                                badness += bad->shared_surr_main;
                        } else if (!i)
                                badness += bad->no_primary_dac;
                        else
                                badness += bad->no_dac;
                }
                if (!dac)
                        continue;
                path = snd_hda_add_new_path(codec, dac, pin, -spec->mixer_nid);
                if (!path && !i && spec->mixer_nid) {
                        /* try with aamix */
                        path = snd_hda_add_new_path(codec, dac, pin, 0);
                }
                if (!path) {
                        dacs[i] = 0;
                        badness += bad->no_dac;
                } else {
                        /* print_nid_path(codec, "output", path); */
                        path->active = true;
                        path_idx[i] = snd_hda_get_path_idx(codec, path);
                        badness += assign_out_path_ctls(codec, path);
                }
        }

        return badness;
}

/* return NID if the given pin has only a single connection to a certain DAC */
static hda_nid_t get_dac_if_single(struct hda_codec *codec, hda_nid_t pin)
{
        struct hda_gen_spec *spec = codec->spec;
        int i;
        hda_nid_t nid_found = 0;

        for (i = 0; i < spec->num_all_dacs; i++) {
                hda_nid_t nid = spec->all_dacs[i];
                if (!nid || is_dac_already_used(codec, nid))
                        continue;
                if (is_reachable_path(codec, nid, pin)) {
                        if (nid_found)
                                return 0;
                        nid_found = nid;
                }
        }
        return nid_found;
}

/* check whether the given pin can be a multi-io pin */
static bool can_be_multiio_pin(struct hda_codec *codec,
                               unsigned int location, hda_nid_t nid)
{
        unsigned int defcfg, caps;

        defcfg = snd_hda_codec_get_pincfg(codec, nid);
        if (get_defcfg_connect(defcfg) != AC_JACK_PORT_COMPLEX)
                return false;
        if (location && get_defcfg_location(defcfg) != location)
                return false;
        caps = snd_hda_query_pin_caps(codec, nid);
        if (!(caps & AC_PINCAP_OUT))
                return false;
        return true;
}

/* count the number of input pins that are capable to be multi-io */
static int count_multiio_pins(struct hda_codec *codec, hda_nid_t reference_pin)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        unsigned int defcfg = snd_hda_codec_get_pincfg(codec, reference_pin);
        unsigned int location = get_defcfg_location(defcfg);
        int type, i;
        int num_pins = 0;

        for (type = AUTO_PIN_LINE_IN; type >= AUTO_PIN_MIC; type--) {
                for (i = 0; i < cfg->num_inputs; i++) {
                        if (cfg->inputs[i].type != type)
                                continue;
                        if (can_be_multiio_pin(codec, location,
                                               cfg->inputs[i].pin))
                                num_pins++;
                }
        }
        return num_pins;
}

/*
 * multi-io helper
 *
 * When hardwired is set, try to fill ony hardwired pins, and returns
 * zero if any pins are filled, non-zero if nothing found.
 * When hardwired is off, try to fill possible input pins, and returns
 * the badness value.
 */
static int fill_multi_ios(struct hda_codec *codec,
                          hda_nid_t reference_pin,
                          bool hardwired)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        int type, i, j, num_pins, old_pins;
        unsigned int defcfg = snd_hda_codec_get_pincfg(codec, reference_pin);
        unsigned int location = get_defcfg_location(defcfg);
        int badness = 0;
        struct nid_path *path;

        old_pins = spec->multi_ios;
        if (old_pins >= 2)
                goto end_fill;

        num_pins = count_multiio_pins(codec, reference_pin);
        if (num_pins < 2)
                goto end_fill;

        for (type = AUTO_PIN_LINE_IN; type >= AUTO_PIN_MIC; type--) {
                for (i = 0; i < cfg->num_inputs; i++) {
                        hda_nid_t nid = cfg->inputs[i].pin;
                        hda_nid_t dac = 0;

                        if (cfg->inputs[i].type != type)
                                continue;
                        if (!can_be_multiio_pin(codec, location, nid))
                                continue;
                        for (j = 0; j < spec->multi_ios; j++) {
                                if (nid == spec->multi_io[j].pin)
                                        break;
                        }
                        if (j < spec->multi_ios)
                                continue;

                        if (hardwired)
                                dac = get_dac_if_single(codec, nid);
                        else if (!dac)
                                dac = look_for_dac(codec, nid, false);
                        if (!dac) {
                                badness++;
                                continue;
                        }
                        path = snd_hda_add_new_path(codec, dac, nid,
                                                    -spec->mixer_nid);
                        if (!path) {
                                badness++;
                                continue;
                        }
                        /* print_nid_path(codec, "multiio", path); */
                        spec->multi_io[spec->multi_ios].pin = nid;
                        spec->multi_io[spec->multi_ios].dac = dac;
                        spec->out_paths[cfg->line_outs + spec->multi_ios] =
                                snd_hda_get_path_idx(codec, path);
                        spec->multi_ios++;
                        if (spec->multi_ios >= 2)
                                break;
                }
        }
 end_fill:
        if (badness)
                badness = BAD_MULTI_IO;
        if (old_pins == spec->multi_ios) {
                if (hardwired)
                        return 1; /* nothing found */
                else
                        return badness; /* no badness if nothing found */
        }
        if (!hardwired && spec->multi_ios < 2) {
                /* cancel newly assigned paths */
                spec->paths.used -= spec->multi_ios - old_pins;
                spec->multi_ios = old_pins;
                return badness;
        }

        /* assign volume and mute controls */
        for (i = old_pins; i < spec->multi_ios; i++) {
                path = snd_hda_get_path_from_idx(codec, spec->out_paths[cfg->line_outs + i]);
                badness += assign_out_path_ctls(codec, path);
        }

        return badness;
}

/* map DACs for all pins in the list if they are single connections */
static bool map_singles(struct hda_codec *codec, int outs,
                        const hda_nid_t *pins, hda_nid_t *dacs, int *path_idx)
{
        struct hda_gen_spec *spec = codec->spec;
        int i;
        bool found = false;
        for (i = 0; i < outs; i++) {
                struct nid_path *path;
                hda_nid_t dac;
                if (dacs[i])
                        continue;
                dac = get_dac_if_single(codec, pins[i]);
                if (!dac)
                        continue;
                path = snd_hda_add_new_path(codec, dac, pins[i],
                                            -spec->mixer_nid);
                if (!path && !i && spec->mixer_nid)
                        path = snd_hda_add_new_path(codec, dac, pins[i], 0);
                if (path) {
                        dacs[i] = dac;
                        found = true;
                        /* print_nid_path(codec, "output", path); */
                        path->active = true;
                        path_idx[i] = snd_hda_get_path_idx(codec, path);
                }
        }
        return found;
}

static inline bool has_aamix_out_paths(struct hda_gen_spec *spec)
{
        return spec->aamix_out_paths[0] || spec->aamix_out_paths[1] ||
                spec->aamix_out_paths[2];
}

/* create a new path including aamix if available, and return its index */
static int check_aamix_out_path(struct hda_codec *codec, int path_idx)
{
        struct hda_gen_spec *spec = codec->spec;
        struct nid_path *path;
        hda_nid_t path_dac, dac, pin;

        path = snd_hda_get_path_from_idx(codec, path_idx);
        if (!path || !path->depth ||
            is_nid_contained(path, spec->mixer_nid))
                return 0;
        path_dac = path->path[0];
        dac = spec->private_dac_nids[0];
        pin = path->path[path->depth - 1];
        path = snd_hda_add_new_path(codec, dac, pin, spec->mixer_nid);
        if (!path) {
                if (dac != path_dac)
                        dac = path_dac;
                else if (spec->multiout.hp_out_nid[0])
                        dac = spec->multiout.hp_out_nid[0];
                else if (spec->multiout.extra_out_nid[0])
                        dac = spec->multiout.extra_out_nid[0];
                else
                        dac = 0;
                if (dac)
                        path = snd_hda_add_new_path(codec, dac, pin,
                                                    spec->mixer_nid);
        }
        if (!path)
                return 0;
        /* print_nid_path(codec, "output-aamix", path); */
        path->active = false; /* unused as default */
        path->pin_fixed = true; /* static route */
        return snd_hda_get_path_idx(codec, path);
}

/* check whether the independent HP is available with the current config */
static bool indep_hp_possible(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        struct nid_path *path;
        int i, idx;

        if (cfg->line_out_type == AUTO_PIN_HP_OUT)
                idx = spec->out_paths[0];
        else
                idx = spec->hp_paths[0];
        path = snd_hda_get_path_from_idx(codec, idx);
        if (!path)
                return false;

        /* assume no path conflicts unless aamix is involved */
        if (!spec->mixer_nid || !is_nid_contained(path, spec->mixer_nid))
                return true;

        /* check whether output paths contain aamix */
        for (i = 0; i < cfg->line_outs; i++) {
                if (spec->out_paths[i] == idx)
                        break;
                path = snd_hda_get_path_from_idx(codec, spec->out_paths[i]);
                if (path && is_nid_contained(path, spec->mixer_nid))
                        return false;
        }
        for (i = 0; i < cfg->speaker_outs; i++) {
                path = snd_hda_get_path_from_idx(codec, spec->speaker_paths[i]);
                if (path && is_nid_contained(path, spec->mixer_nid))
                        return false;
        }

        return true;
}

/* fill the empty entries in the dac array for speaker/hp with the
 * shared dac pointed by the paths
 */
static void refill_shared_dacs(struct hda_codec *codec, int num_outs,
                               hda_nid_t *dacs, int *path_idx)
{
        struct nid_path *path;
        int i;

        for (i = 0; i < num_outs; i++) {
                if (dacs[i])
                        continue;
                path = snd_hda_get_path_from_idx(codec, path_idx[i]);
                if (!path)
                        continue;
                dacs[i] = path->path[0];
        }
}

/* fill in the dac_nids table from the parsed pin configuration */
static int fill_and_eval_dacs(struct hda_codec *codec,
                              bool fill_hardwired,
                              bool fill_mio_first)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        int i, err, badness;

        /* set num_dacs once to full for look_for_dac() */
        spec->multiout.num_dacs = cfg->line_outs;
        spec->multiout.dac_nids = spec->private_dac_nids;
        memset(spec->private_dac_nids, 0, sizeof(spec->private_dac_nids));
        memset(spec->multiout.hp_out_nid, 0, sizeof(spec->multiout.hp_out_nid));
        memset(spec->multiout.extra_out_nid, 0, sizeof(spec->multiout.extra_out_nid));
        spec->multi_ios = 0;
        snd_array_free(&spec->paths);

        /* clear path indices */
        memset(spec->out_paths, 0, sizeof(spec->out_paths));
        memset(spec->hp_paths, 0, sizeof(spec->hp_paths));
        memset(spec->speaker_paths, 0, sizeof(spec->speaker_paths));
        memset(spec->aamix_out_paths, 0, sizeof(spec->aamix_out_paths));
        memset(spec->digout_paths, 0, sizeof(spec->digout_paths));
        memset(spec->input_paths, 0, sizeof(spec->input_paths));
        memset(spec->loopback_paths, 0, sizeof(spec->loopback_paths));
        memset(&spec->digin_path, 0, sizeof(spec->digin_path));

        badness = 0;

        /* fill hard-wired DACs first */
        if (fill_hardwired) {
                bool mapped;
                do {
                        mapped = map_singles(codec, cfg->line_outs,
                                             cfg->line_out_pins,
                                             spec->private_dac_nids,
                                             spec->out_paths);
                        mapped |= map_singles(codec, cfg->hp_outs,
                                              cfg->hp_pins,
                                              spec->multiout.hp_out_nid,
                                              spec->hp_paths);
                        mapped |= map_singles(codec, cfg->speaker_outs,
                                              cfg->speaker_pins,
                                              spec->multiout.extra_out_nid,
                                              spec->speaker_paths);
                        if (!spec->no_multi_io &&
                            fill_mio_first && cfg->line_outs == 1 &&
                            cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) {
                                err = fill_multi_ios(codec, cfg->line_out_pins[0], true);
                                if (!err)
                                        mapped = true;
                        }
                } while (mapped);
        }

        badness += try_assign_dacs(codec, cfg->line_outs, cfg->line_out_pins,
                                   spec->private_dac_nids, spec->out_paths,
                                   spec->main_out_badness);

        if (!spec->no_multi_io && fill_mio_first &&
            cfg->line_outs == 1 && cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) {
                /* try to fill multi-io first */
                err = fill_multi_ios(codec, cfg->line_out_pins[0], false);
                if (err < 0)
                        return err;
                /* we don't count badness at this stage yet */
        }

        if (cfg->line_out_type != AUTO_PIN_HP_OUT) {
                err = try_assign_dacs(codec, cfg->hp_outs, cfg->hp_pins,
                                      spec->multiout.hp_out_nid,
                                      spec->hp_paths,
                                      spec->extra_out_badness);
                if (err < 0)
                        return err;
                badness += err;
        }
        if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) {
                err = try_assign_dacs(codec, cfg->speaker_outs,
                                      cfg->speaker_pins,
                                      spec->multiout.extra_out_nid,
                                      spec->speaker_paths,
                                      spec->extra_out_badness);
                if (err < 0)
                        return err;
                badness += err;
        }
        if (!spec->no_multi_io &&
            cfg->line_outs == 1 && cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) {
                err = fill_multi_ios(codec, cfg->line_out_pins[0], false);
                if (err < 0)
                        return err;
                badness += err;
        }

        if (spec->mixer_nid) {
                spec->aamix_out_paths[0] =
                        check_aamix_out_path(codec, spec->out_paths[0]);
                if (cfg->line_out_type != AUTO_PIN_HP_OUT)
                        spec->aamix_out_paths[1] =
                                check_aamix_out_path(codec, spec->hp_paths[0]);
                if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT)
                        spec->aamix_out_paths[2] =
                                check_aamix_out_path(codec, spec->speaker_paths[0]);
        }

        if (!spec->no_multi_io &&
            cfg->hp_outs && cfg->line_out_type == AUTO_PIN_SPEAKER_OUT)
                if (count_multiio_pins(codec, cfg->hp_pins[0]) >= 2)
                        spec->multi_ios = 1; /* give badness */

        /* re-count num_dacs and squash invalid entries */
        spec->multiout.num_dacs = 0;
        for (i = 0; i < cfg->line_outs; i++) {
                if (spec->private_dac_nids[i])
                        spec->multiout.num_dacs++;
                else {
                        memmove(spec->private_dac_nids + i,
                                spec->private_dac_nids + i + 1,
                                sizeof(hda_nid_t) * (cfg->line_outs - i - 1));
                        spec->private_dac_nids[cfg->line_outs - 1] = 0;
                }
        }

        spec->ext_channel_count = spec->min_channel_count =
                spec->multiout.num_dacs * 2;

        if (spec->multi_ios == 2) {
                for (i = 0; i < 2; i++)
                        spec->private_dac_nids[spec->multiout.num_dacs++] =
                                spec->multi_io[i].dac;
        } else if (spec->multi_ios) {
                spec->multi_ios = 0;
                badness += BAD_MULTI_IO;
        }

        if (spec->indep_hp && !indep_hp_possible(codec))
                badness += BAD_NO_INDEP_HP;

        /* re-fill the shared DAC for speaker / headphone */
        if (cfg->line_out_type != AUTO_PIN_HP_OUT)
                refill_shared_dacs(codec, cfg->hp_outs,
                                   spec->multiout.hp_out_nid,
                                   spec->hp_paths);
        if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT)
                refill_shared_dacs(codec, cfg->speaker_outs,
                                   spec->multiout.extra_out_nid,
                                   spec->speaker_paths);

        return badness;
}

#define DEBUG_BADNESS

#ifndef TARGET_OS2
#ifdef DEBUG_BADNESS
#define debug_badness(fmt, ...)                                         \
        codec_dbg(codec, fmt, ##__VA_ARGS__)
#else
#define debug_badness(fmt, ...)                                         \
        do { if (0) codec_dbg(codec, fmt, ##__VA_ARGS__); } while (0)
#endif
#else
#ifdef DEBUG_BADNESS
#define debug_badness(fmt, ...) codec_dbg(codec, fmt, ##__VA_ARGS__)
#else
#define debug_badness(...)
#endif
#endif /* TARGET_OS2 */

#ifdef DEBUG_BADNESS
static inline void print_nid_path_idx(struct hda_codec *codec,
                                      const char *pfx, int idx)
{
        struct nid_path *path;

        path = snd_hda_get_path_from_idx(codec, idx);
        if (path)
                print_nid_path(codec, pfx, path);
}

static void debug_show_configs(struct hda_codec *codec,
                               struct auto_pin_cfg *cfg)
{
        struct hda_gen_spec *spec = codec->spec;
        static const char * const lo_type[3] = { "LO", "SP", "HP" };
        int i;

        debug_badness("multi_outs = %x/%x/%x/%x : %x/%x/%x/%x (type %s)\n",
                      cfg->line_out_pins[0], cfg->line_out_pins[1],
                      cfg->line_out_pins[2], cfg->line_out_pins[3],
                      spec->multiout.dac_nids[0],
                      spec->multiout.dac_nids[1],
                      spec->multiout.dac_nids[2],
                      spec->multiout.dac_nids[3],
                      lo_type[cfg->line_out_type]);
        for (i = 0; i < cfg->line_outs; i++)
                print_nid_path_idx(codec, "  out", spec->out_paths[i]);
        if (spec->multi_ios > 0)
                debug_badness("multi_ios(%d) = %x/%x : %x/%x\n",
                              spec->multi_ios,
                              spec->multi_io[0].pin, spec->multi_io[1].pin,
                              spec->multi_io[0].dac, spec->multi_io[1].dac);
        for (i = 0; i < spec->multi_ios; i++)
                print_nid_path_idx(codec, "  mio",
                                   spec->out_paths[cfg->line_outs + i]);
        if (cfg->hp_outs)
                debug_badness("hp_outs = %x/%x/%x/%x : %x/%x/%x/%x\n",
                      cfg->hp_pins[0], cfg->hp_pins[1],
                      cfg->hp_pins[2], cfg->hp_pins[3],
                      spec->multiout.hp_out_nid[0],
                      spec->multiout.hp_out_nid[1],
                      spec->multiout.hp_out_nid[2],
                      spec->multiout.hp_out_nid[3]);
        for (i = 0; i < cfg->hp_outs; i++)
                print_nid_path_idx(codec, "  hp ", spec->hp_paths[i]);
        if (cfg->speaker_outs)
                debug_badness("spk_outs = %x/%x/%x/%x : %x/%x/%x/%x\n",
                      cfg->speaker_pins[0], cfg->speaker_pins[1],
                      cfg->speaker_pins[2], cfg->speaker_pins[3],
                      spec->multiout.extra_out_nid[0],
                      spec->multiout.extra_out_nid[1],
                      spec->multiout.extra_out_nid[2],
                      spec->multiout.extra_out_nid[3]);
        for (i = 0; i < cfg->speaker_outs; i++)
                print_nid_path_idx(codec, "  spk", spec->speaker_paths[i]);
        for (i = 0; i < 3; i++)
                print_nid_path_idx(codec, "  mix", spec->aamix_out_paths[i]);
}
#else
#define debug_show_configs(codec, cfg) /* NOP */
#endif

/* find all available DACs of the codec */
static void fill_all_dac_nids(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        hda_nid_t nid;

        spec->num_all_dacs = 0;
        memset(spec->all_dacs, 0, sizeof(spec->all_dacs));
        for_each_hda_codec_node(nid, codec) {
                if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_AUD_OUT)
                        continue;
                if (spec->num_all_dacs >= ARRAY_SIZE(spec->all_dacs)) {
                        codec_err(codec, "Too many DACs!\n");
                        break;
                }
                spec->all_dacs[spec->num_all_dacs++] = nid;
        }
}

static int parse_output_paths(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        struct auto_pin_cfg *best_cfg;
        unsigned int val;
        int best_badness = INT_MAX;
        int badness;
        bool fill_hardwired = true, fill_mio_first = true;
        bool best_wired = true, best_mio = true;
        bool hp_spk_swapped = false;

        best_cfg = kmalloc(sizeof(*best_cfg), GFP_KERNEL);
        if (!best_cfg)
                return -ENOMEM;
        *best_cfg = *cfg;

        for (;;) {
                badness = fill_and_eval_dacs(codec, fill_hardwired,
                                             fill_mio_first);
                if (badness < 0) {
                        kfree(best_cfg);
                        return badness;
                }
                debug_badness("==> lo_type=%d, wired=%d, mio=%d, badness=0x%x\n",
                              cfg->line_out_type, fill_hardwired, fill_mio_first,
                              badness);
                debug_show_configs(codec, cfg);
                if (badness < best_badness) {
                        best_badness = badness;
                        *best_cfg = *cfg;
                        best_wired = fill_hardwired;
                        best_mio = fill_mio_first;
                }
                if (!badness)
                        break;
                fill_mio_first = !fill_mio_first;
                if (!fill_mio_first)
                        continue;
                fill_hardwired = !fill_hardwired;
                if (!fill_hardwired)
                        continue;
                if (hp_spk_swapped)
                        break;
                hp_spk_swapped = true;
                if (cfg->speaker_outs > 0 &&
                    cfg->line_out_type == AUTO_PIN_HP_OUT) {
                        cfg->hp_outs = cfg->line_outs;
                        memcpy(cfg->hp_pins, cfg->line_out_pins,
                               sizeof(cfg->hp_pins));
                        cfg->line_outs = cfg->speaker_outs;
                        memcpy(cfg->line_out_pins, cfg->speaker_pins,
                               sizeof(cfg->speaker_pins));
                        cfg->speaker_outs = 0;
                        memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
                        cfg->line_out_type = AUTO_PIN_SPEAKER_OUT;
                        fill_hardwired = true;
                        continue;
                }
                if (cfg->hp_outs > 0 &&
                    cfg->line_out_type == AUTO_PIN_SPEAKER_OUT) {
                        cfg->speaker_outs = cfg->line_outs;
                        memcpy(cfg->speaker_pins, cfg->line_out_pins,
                               sizeof(cfg->speaker_pins));
                        cfg->line_outs = cfg->hp_outs;
                        memcpy(cfg->line_out_pins, cfg->hp_pins,
                               sizeof(cfg->hp_pins));
                        cfg->hp_outs = 0;
                        memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
                        cfg->line_out_type = AUTO_PIN_HP_OUT;
                        fill_hardwired = true;
                        continue;
                }
                break;
        }

        if (badness) {
                debug_badness("==> restoring best_cfg\n");
                *cfg = *best_cfg;
                fill_and_eval_dacs(codec, best_wired, best_mio);
        }
        debug_badness("==> Best config: lo_type=%d, wired=%d, mio=%d\n",
                      cfg->line_out_type, best_wired, best_mio);
        debug_show_configs(codec, cfg);

        if (cfg->line_out_pins[0]) {
                struct nid_path *path;
                path = snd_hda_get_path_from_idx(codec, spec->out_paths[0]);
                if (path)
                        spec->vmaster_nid = look_for_out_vol_nid(codec, path);
                if (spec->vmaster_nid) {
                        snd_hda_set_vmaster_tlv(codec, spec->vmaster_nid,
                                                HDA_OUTPUT, spec->vmaster_tlv);
                        if (spec->dac_min_mute)
                                spec->vmaster_tlv[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] |= TLV_DB_SCALE_MUTE;
                }
        }

        /* set initial pinctl targets */
        if (spec->prefer_hp_amp || cfg->line_out_type == AUTO_PIN_HP_OUT)
                val = PIN_HP;
        else
                val = PIN_OUT;
        set_pin_targets(codec, cfg->line_outs, cfg->line_out_pins, val);
        if (cfg->line_out_type != AUTO_PIN_HP_OUT)
                set_pin_targets(codec, cfg->hp_outs, cfg->hp_pins, PIN_HP);
        if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) {
                val = spec->prefer_hp_amp ? PIN_HP : PIN_OUT;
                set_pin_targets(codec, cfg->speaker_outs,
                                cfg->speaker_pins, val);
        }

        /* clear indep_hp flag if not available */
        if (spec->indep_hp && !indep_hp_possible(codec))
                spec->indep_hp = 0;

        kfree(best_cfg);
        return 0;
}

/* add playback controls from the parsed DAC table */
static int create_multi_out_ctls(struct hda_codec *codec,
                                 const struct auto_pin_cfg *cfg)
{
        struct hda_gen_spec *spec = codec->spec;
        int i, err, noutputs;

        noutputs = cfg->line_outs;
        if (spec->multi_ios > 0 && cfg->line_outs < 3)
                noutputs += spec->multi_ios;

        for (i = 0; i < noutputs; i++) {
                const char *name;
                int index;
                struct nid_path *path;

                path = snd_hda_get_path_from_idx(codec, spec->out_paths[i]);
                if (!path)
                        continue;

                name = get_line_out_pfx(codec, i, &index, NID_PATH_VOL_CTL);
                if (!name || !strcmp(name, "CLFE")) {
                        /* Center/LFE */
                        err = add_vol_ctl(codec, "Center", 0, 1, path);
                        if (err < 0)
                                return err;
                        err = add_vol_ctl(codec, "LFE", 0, 2, path);
                        if (err < 0)
                                return err;
                } else {
                        err = add_stereo_vol(codec, name, index, path);
                        if (err < 0)
                                return err;
                }

                name = get_line_out_pfx(codec, i, &index, NID_PATH_MUTE_CTL);
                if (!name || !strcmp(name, "CLFE")) {
                        err = add_sw_ctl(codec, "Center", 0, 1, path);
                        if (err < 0)
                                return err;
                        err = add_sw_ctl(codec, "LFE", 0, 2, path);
                        if (err < 0)
                                return err;
                } else {
                        err = add_stereo_sw(codec, name, index, path);
                        if (err < 0)
                                return err;
                }
        }
        return 0;
}

static int create_extra_out(struct hda_codec *codec, int path_idx,
                            const char *pfx, int cidx)
{
        struct nid_path *path;
        int err;

        path = snd_hda_get_path_from_idx(codec, path_idx);
        if (!path)
                return 0;
        err = add_stereo_vol(codec, pfx, cidx, path);
        if (err < 0)
                return err;
        err = add_stereo_sw(codec, pfx, cidx, path);
        if (err < 0)
                return err;
        return 0;
}

/* add playback controls for speaker and HP outputs */
static int create_extra_outs(struct hda_codec *codec, int num_pins,
                             const int *paths, const char *pfx)
{
        int i;

        for (i = 0; i < num_pins; i++) {
                const char *name;
                char tmp[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
                int err, idx = 0;

                if (num_pins == 2 && i == 1 && !strcmp(pfx, "Speaker"))
                        name = "Bass Speaker";
                else if (num_pins >= 3) {
                        snprintf(tmp, sizeof(tmp), "%s %s",
                                 pfx, channel_name[i]);
                        name = tmp;
                } else {
                        name = pfx;
                        idx = i;
                }
                err = create_extra_out(codec, paths[i], name, idx);
                if (err < 0)
                        return err;
        }
        return 0;
}

static int create_hp_out_ctls(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        return create_extra_outs(codec, spec->autocfg.hp_outs,
                                 spec->hp_paths,
                                 "Headphone");
}

static int create_speaker_out_ctls(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        return create_extra_outs(codec, spec->autocfg.speaker_outs,
                                 spec->speaker_paths,
                                 "Speaker");
}

/*
 * independent HP controls
 */

static void call_hp_automute(struct hda_codec *codec,
                             struct hda_jack_callback *jack);
static int indep_hp_info(struct snd_kcontrol *kcontrol,
                         struct snd_ctl_elem_info *uinfo)
{
        return snd_hda_enum_bool_helper_info(kcontrol, uinfo);
}

static int indep_hp_get(struct snd_kcontrol *kcontrol,
                        struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        ucontrol->value.enumerated.item[0] = spec->indep_hp_enabled;
        return 0;
}

static void update_aamix_paths(struct hda_codec *codec, bool do_mix,
                               int nomix_path_idx, int mix_path_idx,
                               int out_type);

static int indep_hp_put(struct snd_kcontrol *kcontrol,
                        struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        unsigned int select = ucontrol->value.enumerated.item[0];
        int ret = 0;

        mutex_lock(&spec->pcm_mutex);
        if (spec->active_streams) {
                ret = -EBUSY;
                goto unlock;
        }

        if (spec->indep_hp_enabled != select) {
                hda_nid_t *dacp;
                if (spec->autocfg.line_out_type == AUTO_PIN_HP_OUT)
                        dacp = &spec->private_dac_nids[0];
                else
                        dacp = &spec->multiout.hp_out_nid[0];

                /* update HP aamix paths in case it conflicts with indep HP */
                if (spec->have_aamix_ctl) {
                        if (spec->autocfg.line_out_type == AUTO_PIN_HP_OUT)
                                update_aamix_paths(codec, spec->aamix_mode,
                                                   spec->out_paths[0],
                                                   spec->aamix_out_paths[0],
                                                   spec->autocfg.line_out_type);
                        else
                                update_aamix_paths(codec, spec->aamix_mode,
                                                   spec->hp_paths[0],
                                                   spec->aamix_out_paths[1],
                                                   AUTO_PIN_HP_OUT);
                }

                spec->indep_hp_enabled = select;
                if (spec->indep_hp_enabled)
                        *dacp = 0;
                else
                        *dacp = spec->alt_dac_nid;

                call_hp_automute(codec, NULL);
                ret = 1;
        }
 unlock:
        mutex_unlock(&spec->pcm_mutex);
        return ret;
}

static const struct snd_kcontrol_new indep_hp_ctl = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "Independent HP",
        .info = indep_hp_info,
        .get = indep_hp_get,
        .put = indep_hp_put,
};


static int create_indep_hp_ctls(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        hda_nid_t dac;

        if (!spec->indep_hp)
                return 0;
        if (spec->autocfg.line_out_type == AUTO_PIN_HP_OUT)
                dac = spec->multiout.dac_nids[0];
        else
                dac = spec->multiout.hp_out_nid[0];
        if (!dac) {
                spec->indep_hp = 0;
                return 0;
        }

        spec->indep_hp_enabled = false;
        spec->alt_dac_nid = dac;
        if (!snd_hda_gen_add_kctl(spec, NULL, &indep_hp_ctl))
                return -ENOMEM;
        return 0;
}

/*
 * channel mode enum control
 */

static int ch_mode_info(struct snd_kcontrol *kcontrol,
                        struct snd_ctl_elem_info *uinfo)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        int chs;

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = spec->multi_ios + 1;
        if (uinfo->value.enumerated.item > spec->multi_ios)
                uinfo->value.enumerated.item = spec->multi_ios;
        chs = uinfo->value.enumerated.item * 2 + spec->min_channel_count;
        sprintf(uinfo->value.enumerated.name, "%dch", chs);
        return 0;
}

static int ch_mode_get(struct snd_kcontrol *kcontrol,
                       struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        ucontrol->value.enumerated.item[0] =
                (spec->ext_channel_count - spec->min_channel_count) / 2;
        return 0;
}

static inline struct nid_path *
get_multiio_path(struct hda_codec *codec, int idx)
{
        struct hda_gen_spec *spec = codec->spec;
        return snd_hda_get_path_from_idx(codec,
                spec->out_paths[spec->autocfg.line_outs + idx]);
}

static void update_automute_all(struct hda_codec *codec);

/* Default value to be passed as aamix argument for snd_hda_activate_path();
 * used for output paths
 */
static bool aamix_default(struct hda_gen_spec *spec)
{
        return !spec->have_aamix_ctl || spec->aamix_mode;
}

static int set_multi_io(struct hda_codec *codec, int idx, bool output)
{
        struct hda_gen_spec *spec = codec->spec;
        hda_nid_t nid = spec->multi_io[idx].pin;
        struct nid_path *path;

        path = get_multiio_path(codec, idx);
        if (!path)
                return -EINVAL;

        if (path->active == output)
                return 0;

        if (output) {
                set_pin_target(codec, nid, PIN_OUT, true);
                snd_hda_activate_path(codec, path, true, aamix_default(spec));
                set_pin_eapd(codec, nid, true);
        } else {
                set_pin_eapd(codec, nid, false);
                snd_hda_activate_path(codec, path, false, aamix_default(spec));
                set_pin_target(codec, nid, spec->multi_io[idx].ctl_in, true);
                path_power_down_sync(codec, path);
        }

        /* update jack retasking in case it modifies any of them */
        update_automute_all(codec);

        return 0;
}

static int ch_mode_put(struct snd_kcontrol *kcontrol,
                       struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        int i, ch;

        ch = ucontrol->value.enumerated.item[0];
        if (ch < 0 || ch > spec->multi_ios)
                return -EINVAL;
        if (ch == (spec->ext_channel_count - spec->min_channel_count) / 2)
                return 0;
        spec->ext_channel_count = ch * 2 + spec->min_channel_count;
        for (i = 0; i < spec->multi_ios; i++)
                set_multi_io(codec, i, i < ch);
        spec->multiout.max_channels = max(spec->ext_channel_count,
                                          spec->const_channel_count);
        if (spec->need_dac_fix)
                spec->multiout.num_dacs = spec->multiout.max_channels / 2;
        return 1;
}

static const struct snd_kcontrol_new channel_mode_enum = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "Channel Mode",
        .info = ch_mode_info,
        .get = ch_mode_get,
        .put = ch_mode_put,
};

static int create_multi_channel_mode(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;

        if (spec->multi_ios > 0) {
                if (!snd_hda_gen_add_kctl(spec, NULL, &channel_mode_enum))
                        return -ENOMEM;
        }
        return 0;
}

/*
 * aamix loopback enable/disable switch
 */

#define loopback_mixing_info    indep_hp_info

static int loopback_mixing_get(struct snd_kcontrol *kcontrol,
                               struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        ucontrol->value.enumerated.item[0] = spec->aamix_mode;
        return 0;
}

static void update_aamix_paths(struct hda_codec *codec, bool do_mix,
                               int nomix_path_idx, int mix_path_idx,
                               int out_type)
{
        struct hda_gen_spec *spec = codec->spec;
        struct nid_path *nomix_path, *mix_path;

        nomix_path = snd_hda_get_path_from_idx(codec, nomix_path_idx);
        mix_path = snd_hda_get_path_from_idx(codec, mix_path_idx);
        if (!nomix_path || !mix_path)
                return;

        /* if HP aamix path is driven from a different DAC and the
         * independent HP mode is ON, can't turn on aamix path
         */
        if (out_type == AUTO_PIN_HP_OUT && spec->indep_hp_enabled &&
            mix_path->path[0] != spec->alt_dac_nid)
                do_mix = false;

        if (do_mix) {
                snd_hda_activate_path(codec, nomix_path, false, true);
                snd_hda_activate_path(codec, mix_path, true, true);
                path_power_down_sync(codec, nomix_path);
        } else {
                snd_hda_activate_path(codec, mix_path, false, false);
                snd_hda_activate_path(codec, nomix_path, true, false);
                path_power_down_sync(codec, mix_path);
        }
}

/* re-initialize the output paths; only called from loopback_mixing_put() */
static void update_output_paths(struct hda_codec *codec, int num_outs,
                                const int *paths)
{
        struct hda_gen_spec *spec = codec->spec;
        struct nid_path *path;
        int i;

        for (i = 0; i < num_outs; i++) {
                path = snd_hda_get_path_from_idx(codec, paths[i]);
                if (path)
                        snd_hda_activate_path(codec, path, path->active,
                                              spec->aamix_mode);
        }
}

static int loopback_mixing_put(struct snd_kcontrol *kcontrol,
                               struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        const struct auto_pin_cfg *cfg = &spec->autocfg;
        unsigned int val = ucontrol->value.enumerated.item[0];

        if (val == spec->aamix_mode)
                return 0;
        spec->aamix_mode = val;
        if (has_aamix_out_paths(spec)) {
                update_aamix_paths(codec, val, spec->out_paths[0],
                                   spec->aamix_out_paths[0],
                                   cfg->line_out_type);
                update_aamix_paths(codec, val, spec->hp_paths[0],
                                   spec->aamix_out_paths[1],
                                   AUTO_PIN_HP_OUT);
                update_aamix_paths(codec, val, spec->speaker_paths[0],
                                   spec->aamix_out_paths[2],
                                   AUTO_PIN_SPEAKER_OUT);
        } else {
                update_output_paths(codec, cfg->line_outs, spec->out_paths);
                if (cfg->line_out_type != AUTO_PIN_HP_OUT)
                        update_output_paths(codec, cfg->hp_outs, spec->hp_paths);
                if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT)
                        update_output_paths(codec, cfg->speaker_outs,
                                            spec->speaker_paths);
        }
        return 1;
}

static const struct snd_kcontrol_new loopback_mixing_enum = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "Loopback Mixing",
        .info = loopback_mixing_info,
        .get = loopback_mixing_get,
        .put = loopback_mixing_put,
};

static int create_loopback_mixing_ctl(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;

        if (!spec->mixer_nid)
                return 0;
        if (!snd_hda_gen_add_kctl(spec, NULL, &loopback_mixing_enum))
                return -ENOMEM;
        spec->have_aamix_ctl = 1;
        return 0;
}

/*
 * shared headphone/mic handling
 */

static void call_update_outputs(struct hda_codec *codec);

/* for shared I/O, change the pin-control accordingly */
static void update_hp_mic(struct hda_codec *codec, int adc_mux, bool force)
{
        struct hda_gen_spec *spec = codec->spec;
        bool as_mic;
        unsigned int val;
        hda_nid_t pin;

        pin = spec->hp_mic_pin;
        as_mic = spec->cur_mux[adc_mux] == spec->hp_mic_mux_idx;

        if (!force) {
                val = snd_hda_codec_get_pin_target(codec, pin);
                if (as_mic) {
                        if (val & PIN_IN)
                                return;
                } else {
                        if (val & PIN_OUT)
                                return;
                }
        }

        val = snd_hda_get_default_vref(codec, pin);
        /* if the HP pin doesn't support VREF and the codec driver gives an
         * alternative pin, set up the VREF on that pin instead
         */
        if (val == AC_PINCTL_VREF_HIZ && spec->shared_mic_vref_pin) {
                const hda_nid_t vref_pin = spec->shared_mic_vref_pin;
                unsigned int vref_val = snd_hda_get_default_vref(codec, vref_pin);
                if (vref_val != AC_PINCTL_VREF_HIZ)
                        snd_hda_set_pin_ctl_cache(codec, vref_pin,
                                                  PIN_IN | (as_mic ? vref_val : 0));
        }

        if (!spec->hp_mic_jack_modes) {
                if (as_mic)
                        val |= PIN_IN;
                else
                        val = PIN_HP;
                set_pin_target(codec, pin, val, true);
                call_hp_automute(codec, NULL);
        }
}

/* create a shared input with the headphone out */
static int create_hp_mic(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        unsigned int defcfg;
        hda_nid_t nid;

        if (!spec->hp_mic) {
                if (spec->suppress_hp_mic_detect)
                        return 0;
                /* automatic detection: only if no input or a single internal
                 * input pin is found, try to detect the shared hp/mic
                 */
                if (cfg->num_inputs > 1)
                        return 0;
                else if (cfg->num_inputs == 1) {
                        defcfg = snd_hda_codec_get_pincfg(codec, cfg->inputs[0].pin);
                        if (snd_hda_get_input_pin_attr(defcfg) != INPUT_PIN_ATTR_INT)
                                return 0;
                }
        }

        spec->hp_mic = 0; /* clear once */
        if (cfg->num_inputs >= AUTO_CFG_MAX_INS)
                return 0;

        nid = 0;
        if (cfg->line_out_type == AUTO_PIN_HP_OUT && cfg->line_outs > 0)
                nid = cfg->line_out_pins[0];
        else if (cfg->hp_outs > 0)
                nid = cfg->hp_pins[0];
        if (!nid)
                return 0;

        if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_IN))
                return 0; /* no input */

        cfg->inputs[cfg->num_inputs].pin = nid;
        cfg->inputs[cfg->num_inputs].type = AUTO_PIN_MIC;
        cfg->inputs[cfg->num_inputs].is_headphone_mic = 1;
        cfg->num_inputs++;
        spec->hp_mic = 1;
        spec->hp_mic_pin = nid;
        /* we can't handle auto-mic together with HP-mic */
        spec->suppress_auto_mic = 1;
        codec_dbg(codec, "Enable shared I/O jack on NID 0x%x\n", nid);
        return 0;
}

/*
 * output jack mode
 */

static int create_hp_mic_jack_mode(struct hda_codec *codec, hda_nid_t pin);

static const char * const out_jack_texts[] = {
        "Line Out", "Headphone Out",
};

static int out_jack_mode_info(struct snd_kcontrol *kcontrol,
                              struct snd_ctl_elem_info *uinfo)
{
        return snd_hda_enum_helper_info(kcontrol, uinfo, 2, out_jack_texts);
}

static int out_jack_mode_get(struct snd_kcontrol *kcontrol,
                             struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        hda_nid_t nid = kcontrol->private_value;
        if (snd_hda_codec_get_pin_target(codec, nid) == PIN_HP)
                ucontrol->value.enumerated.item[0] = 1;
        else
                ucontrol->value.enumerated.item[0] = 0;
        return 0;
}

static int out_jack_mode_put(struct snd_kcontrol *kcontrol,
                             struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        hda_nid_t nid = kcontrol->private_value;
        unsigned int val;

        val = ucontrol->value.enumerated.item[0] ? PIN_HP : PIN_OUT;
        if (snd_hda_codec_get_pin_target(codec, nid) == val)
                return 0;
        snd_hda_set_pin_ctl_cache(codec, nid, val);
        return 1;
}

static const struct snd_kcontrol_new out_jack_mode_enum = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .info = out_jack_mode_info,
        .get = out_jack_mode_get,
        .put = out_jack_mode_put,
};

static bool find_kctl_name(struct hda_codec *codec, const char *name, int idx)
{
        struct hda_gen_spec *spec = codec->spec;
        const struct snd_kcontrol_new *kctl;
        int i;

        snd_array_for_each(&spec->kctls, i, kctl) {
                if (!strcmp(kctl->name, name) && kctl->index == idx)
                        return true;
        }
        return false;
}

static void get_jack_mode_name(struct hda_codec *codec, hda_nid_t pin,
                               char *name, size_t name_len)
{
        struct hda_gen_spec *spec = codec->spec;
        int idx = 0;

        snd_hda_get_pin_label(codec, pin, &spec->autocfg, name, name_len, &idx);
        strlcat(name, " Jack Mode", name_len);

        for (; find_kctl_name(codec, name, idx); idx++)
                ;
}

static int get_out_jack_num_items(struct hda_codec *codec, hda_nid_t pin)
{
        struct hda_gen_spec *spec = codec->spec;
        if (spec->add_jack_modes) {
                unsigned int pincap = snd_hda_query_pin_caps(codec, pin);
                if ((pincap & AC_PINCAP_OUT) && (pincap & AC_PINCAP_HP_DRV))
                        return 2;
        }
        return 1;
}

static int create_out_jack_modes(struct hda_codec *codec, int num_pins,
                                 hda_nid_t *pins)
{
        struct hda_gen_spec *spec = codec->spec;
        int i;

        for (i = 0; i < num_pins; i++) {
                hda_nid_t pin = pins[i];
                if (pin == spec->hp_mic_pin)
                        continue;
                if (get_out_jack_num_items(codec, pin) > 1) {
                        struct snd_kcontrol_new *knew;
                        char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
                        get_jack_mode_name(codec, pin, name, sizeof(name));
                        knew = snd_hda_gen_add_kctl(spec, name,
                                                    &out_jack_mode_enum);
                        if (!knew)
                                return -ENOMEM;
                        knew->private_value = pin;
                }
        }

        return 0;
}

/*
 * input jack mode
 */

/* from AC_PINCTL_VREF_HIZ to AC_PINCTL_VREF_100 */
#define NUM_VREFS       6

static const char * const vref_texts[NUM_VREFS] = {
        "Line In", "Mic 50pc Bias", "Mic 0V Bias",
        "", "Mic 80pc Bias", "Mic 100pc Bias"
};

static unsigned int get_vref_caps(struct hda_codec *codec, hda_nid_t pin)
{
        unsigned int pincap;

        pincap = snd_hda_query_pin_caps(codec, pin);
        pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
        /* filter out unusual vrefs */
        pincap &= ~(AC_PINCAP_VREF_GRD | AC_PINCAP_VREF_100);
        return pincap;
}

/* convert from the enum item index to the vref ctl index (0=HIZ, 1=50%...) */
static int get_vref_idx(unsigned int vref_caps, unsigned int item_idx)
{
        unsigned int i, n = 0;

        for (i = 0; i < NUM_VREFS; i++) {
                if (vref_caps & (1 << i)) {
                        if (n == item_idx)
                                return i;
                        n++;
                }
        }
        return 0;
}

/* convert back from the vref ctl index to the enum item index */
static int cvt_from_vref_idx(unsigned int vref_caps, unsigned int idx)
{
        unsigned int i, n = 0;

        for (i = 0; i < NUM_VREFS; i++) {
                if (i == idx)
                        return n;
                if (vref_caps & (1 << i))
                        n++;
        }
        return 0;
}

static int in_jack_mode_info(struct snd_kcontrol *kcontrol,
                             struct snd_ctl_elem_info *uinfo)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        hda_nid_t nid = kcontrol->private_value;
        unsigned int vref_caps = get_vref_caps(codec, nid);

        snd_hda_enum_helper_info(kcontrol, uinfo, hweight32(vref_caps),
                                 vref_texts);
        /* set the right text */
        strcpy(uinfo->value.enumerated.name,
               vref_texts[get_vref_idx(vref_caps, uinfo->value.enumerated.item)]);
        return 0;
}

static int in_jack_mode_get(struct snd_kcontrol *kcontrol,
                            struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        hda_nid_t nid = kcontrol->private_value;
        unsigned int vref_caps = get_vref_caps(codec, nid);
        unsigned int idx;

        idx = snd_hda_codec_get_pin_target(codec, nid) & AC_PINCTL_VREFEN;
        ucontrol->value.enumerated.item[0] = cvt_from_vref_idx(vref_caps, idx);
        return 0;
}

static int in_jack_mode_put(struct snd_kcontrol *kcontrol,
                            struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        hda_nid_t nid = kcontrol->private_value;
        unsigned int vref_caps = get_vref_caps(codec, nid);
        unsigned int val, idx;

        val = snd_hda_codec_get_pin_target(codec, nid);
        idx = cvt_from_vref_idx(vref_caps, val & AC_PINCTL_VREFEN);
        if (idx == ucontrol->value.enumerated.item[0])
                return 0;

        val &= ~AC_PINCTL_VREFEN;
        val |= get_vref_idx(vref_caps, ucontrol->value.enumerated.item[0]);
        snd_hda_set_pin_ctl_cache(codec, nid, val);
        return 1;
}

static const struct snd_kcontrol_new in_jack_mode_enum = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .info = in_jack_mode_info,
        .get = in_jack_mode_get,
        .put = in_jack_mode_put,
};

static int get_in_jack_num_items(struct hda_codec *codec, hda_nid_t pin)
{
        struct hda_gen_spec *spec = codec->spec;
        int nitems = 0;
        if (spec->add_jack_modes)
                nitems = hweight32(get_vref_caps(codec, pin));
        return nitems ? nitems : 1;
}

static int create_in_jack_mode(struct hda_codec *codec, hda_nid_t pin)
{
        struct hda_gen_spec *spec = codec->spec;
        struct snd_kcontrol_new *knew;
        char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
        unsigned int defcfg;

        if (pin == spec->hp_mic_pin)
                return 0; /* already done in create_out_jack_mode() */

        /* no jack mode for fixed pins */
        defcfg = snd_hda_codec_get_pincfg(codec, pin);
        if (snd_hda_get_input_pin_attr(defcfg) == INPUT_PIN_ATTR_INT)
                return 0;

        /* no multiple vref caps? */
        if (get_in_jack_num_items(codec, pin) <= 1)
                return 0;

        get_jack_mode_name(codec, pin, name, sizeof(name));
        knew = snd_hda_gen_add_kctl(spec, name, &in_jack_mode_enum);
        if (!knew)
                return -ENOMEM;
        knew->private_value = pin;
        return 0;
}

/*
 * HP/mic shared jack mode
 */
static int hp_mic_jack_mode_info(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_info *uinfo)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        hda_nid_t nid = kcontrol->private_value;
        int out_jacks = get_out_jack_num_items(codec, nid);
        int in_jacks = get_in_jack_num_items(codec, nid);
        const char *text = NULL;
        int idx;

        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
        uinfo->count = 1;
        uinfo->value.enumerated.items = out_jacks + in_jacks;
        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
                uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
        idx = uinfo->value.enumerated.item;
        if (idx < out_jacks) {
                if (out_jacks > 1)
                        text = out_jack_texts[idx];
                else
                        text = "Headphone Out";
        } else {
                idx -= out_jacks;
                if (in_jacks > 1) {
                        unsigned int vref_caps = get_vref_caps(codec, nid);
                        text = vref_texts[get_vref_idx(vref_caps, idx)];
                } else
                        text = "Mic In";
        }

        strcpy(uinfo->value.enumerated.name, text);
        return 0;
}

static int get_cur_hp_mic_jack_mode(struct hda_codec *codec, hda_nid_t nid)
{
        int out_jacks = get_out_jack_num_items(codec, nid);
        int in_jacks = get_in_jack_num_items(codec, nid);
        unsigned int val = snd_hda_codec_get_pin_target(codec, nid);
        int idx = 0;

        if (val & PIN_OUT) {
                if (out_jacks > 1 && val == PIN_HP)
                        idx = 1;
        } else if (val & PIN_IN) {
                idx = out_jacks;
                if (in_jacks > 1) {
                        unsigned int vref_caps = get_vref_caps(codec, nid);
                        val &= AC_PINCTL_VREFEN;
                        idx += cvt_from_vref_idx(vref_caps, val);
                }
        }
        return idx;
}

static int hp_mic_jack_mode_get(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        hda_nid_t nid = kcontrol->private_value;
        ucontrol->value.enumerated.item[0] =
                get_cur_hp_mic_jack_mode(codec, nid);
        return 0;
}

static int hp_mic_jack_mode_put(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        hda_nid_t nid = kcontrol->private_value;
        int out_jacks = get_out_jack_num_items(codec, nid);
        int in_jacks = get_in_jack_num_items(codec, nid);
        unsigned int val, oldval, idx;

        oldval = get_cur_hp_mic_jack_mode(codec, nid);
        idx = ucontrol->value.enumerated.item[0];
        if (oldval == idx)
                return 0;

        if (idx < out_jacks) {
                if (out_jacks > 1)
                        val = idx ? PIN_HP : PIN_OUT;
                else
                        val = PIN_HP;
        } else {
                idx -= out_jacks;
                if (in_jacks > 1) {
                        unsigned int vref_caps = get_vref_caps(codec, nid);
                        val = snd_hda_codec_get_pin_target(codec, nid);
                        val &= ~(AC_PINCTL_VREFEN | PIN_HP);
                        val |= get_vref_idx(vref_caps, idx) | PIN_IN;
                } else
                        val = snd_hda_get_default_vref(codec, nid) | PIN_IN;
        }
        snd_hda_set_pin_ctl_cache(codec, nid, val);
        call_hp_automute(codec, NULL);

        return 1;
}

static const struct snd_kcontrol_new hp_mic_jack_mode_enum = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .info = hp_mic_jack_mode_info,
        .get = hp_mic_jack_mode_get,
        .put = hp_mic_jack_mode_put,
};

static int create_hp_mic_jack_mode(struct hda_codec *codec, hda_nid_t pin)
{
        struct hda_gen_spec *spec = codec->spec;
        struct snd_kcontrol_new *knew;

        knew = snd_hda_gen_add_kctl(spec, "Headphone Mic Jack Mode",
                                    &hp_mic_jack_mode_enum);
        if (!knew)
                return -ENOMEM;
        knew->private_value = pin;
        spec->hp_mic_jack_modes = 1;
        return 0;
}

/*
 * Parse input paths
 */

/* add the powersave loopback-list entry */
static int add_loopback_list(struct hda_gen_spec *spec, hda_nid_t mix, int idx)
{
        struct hda_amp_list *list;

        list = snd_array_new(&spec->loopback_list);
        if (!list)
                return -ENOMEM;
        list->nid = mix;
        list->dir = HDA_INPUT;
        list->idx = idx;
        spec->loopback.amplist = spec->loopback_list.list;
        return 0;
}

/* return true if either a volume or a mute amp is found for the given
 * aamix path; the amp has to be either in the mixer node or its direct leaf
 */
static bool look_for_mix_leaf_ctls(struct hda_codec *codec, hda_nid_t mix_nid,
                                   hda_nid_t pin, unsigned int *mix_val,
                                   unsigned int *mute_val)
{
        int idx, num_conns;
        const hda_nid_t *list;
        hda_nid_t nid;

        idx = snd_hda_get_conn_index(codec, mix_nid, pin, true);
        if (idx < 0)
                return false;

        *mix_val = *mute_val = 0;
        if (nid_has_volume(codec, mix_nid, HDA_INPUT))
                *mix_val = HDA_COMPOSE_AMP_VAL(mix_nid, 3, idx, HDA_INPUT);
        if (nid_has_mute(codec, mix_nid, HDA_INPUT))
                *mute_val = HDA_COMPOSE_AMP_VAL(mix_nid, 3, idx, HDA_INPUT);
        if (*mix_val && *mute_val)
                return true;

        /* check leaf node */
        num_conns = snd_hda_get_conn_list(codec, mix_nid, &list);
        if (num_conns < idx)
                return false;
        nid = list[idx];
        if (!*mix_val && nid_has_volume(codec, nid, HDA_OUTPUT) &&
            !is_ctl_associated(codec, nid, HDA_OUTPUT, 0, NID_PATH_VOL_CTL))
                *mix_val = HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT);
        if (!*mute_val && nid_has_mute(codec, nid, HDA_OUTPUT) &&
            !is_ctl_associated(codec, nid, HDA_OUTPUT, 0, NID_PATH_MUTE_CTL))
                *mute_val = HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT);

        return *mix_val || *mute_val;
}

/* create input playback/capture controls for the given pin */
static int new_analog_input(struct hda_codec *codec, int input_idx,
                            hda_nid_t pin, const char *ctlname, int ctlidx,
                            hda_nid_t mix_nid)
{
        struct hda_gen_spec *spec = codec->spec;
        struct nid_path *path;
        unsigned int mix_val, mute_val;
        int err, idx;

        if (!look_for_mix_leaf_ctls(codec, mix_nid, pin, &mix_val, &mute_val))
                return 0;

        path = snd_hda_add_new_path(codec, pin, mix_nid, 0);
        if (!path)
                return -EINVAL;
        print_nid_path(codec, "loopback", path);
        spec->loopback_paths[input_idx] = snd_hda_get_path_idx(codec, path);

        idx = path->idx[path->depth - 1];
        if (mix_val) {
                err = __add_pb_vol_ctrl(spec, HDA_CTL_WIDGET_VOL, ctlname, ctlidx, mix_val);
                if (err < 0)
                        return err;
                path->ctls[NID_PATH_VOL_CTL] = mix_val;
        }

        if (mute_val) {
                err = __add_pb_sw_ctrl(spec, HDA_CTL_WIDGET_MUTE, ctlname, ctlidx, mute_val);
                if (err < 0)
                        return err;
                path->ctls[NID_PATH_MUTE_CTL] = mute_val;
        }

        path->active = true;
        path->stream_enabled = true; /* no DAC/ADC involved */
        err = add_loopback_list(spec, mix_nid, idx);
        if (err < 0)
                return err;

        if (spec->mixer_nid != spec->mixer_merge_nid &&
            !spec->loopback_merge_path) {
                path = snd_hda_add_new_path(codec, spec->mixer_nid,
                                            spec->mixer_merge_nid, 0);
                if (path) {
                        print_nid_path(codec, "loopback-merge", path);
                        path->active = true;
                        path->pin_fixed = true; /* static route */
                        path->stream_enabled = true; /* no DAC/ADC involved */
                        spec->loopback_merge_path =
                                snd_hda_get_path_idx(codec, path);
                }
        }

        return 0;
}

static int is_input_pin(struct hda_codec *codec, hda_nid_t nid)
{
        unsigned int pincap = snd_hda_query_pin_caps(codec, nid);
        return (pincap & AC_PINCAP_IN) != 0;
}

/* Parse the codec tree and retrieve ADCs */
static int fill_adc_nids(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        hda_nid_t nid;
        hda_nid_t *adc_nids = spec->adc_nids;
        int max_nums = ARRAY_SIZE(spec->adc_nids);
        int nums = 0;

        for_each_hda_codec_node(nid, codec) {
                unsigned int caps = get_wcaps(codec, nid);
                int type = get_wcaps_type(caps);

                if (type != AC_WID_AUD_IN || (caps & AC_WCAP_DIGITAL))
                        continue;
                adc_nids[nums] = nid;
                if (++nums >= max_nums)
                        break;
        }
        spec->num_adc_nids = nums;

        /* copy the detected ADCs to all_adcs[] */
        spec->num_all_adcs = nums;
        memcpy(spec->all_adcs, spec->adc_nids, nums * sizeof(hda_nid_t));

        return nums;
}

/* filter out invalid adc_nids that don't give all active input pins;
 * if needed, check whether dynamic ADC-switching is available
 */
static int check_dyn_adc_switch(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct hda_input_mux *imux = &spec->input_mux;
        unsigned int ok_bits;
        int i, n, nums;

        nums = 0;
        ok_bits = 0;
        for (n = 0; n < spec->num_adc_nids; n++) {
                for (i = 0; i < imux->num_items; i++) {
                        if (!spec->input_paths[i][n])
                                break;
                }
                if (i >= imux->num_items) {
                        ok_bits |= (1 << n);
                        nums++;
                }
        }

        if (!ok_bits) {
                /* check whether ADC-switch is possible */
                for (i = 0; i < imux->num_items; i++) {
                        for (n = 0; n < spec->num_adc_nids; n++) {
                                if (spec->input_paths[i][n]) {
                                        spec->dyn_adc_idx[i] = n;
                                        break;
                                }
                        }
                }

                codec_dbg(codec, "enabling ADC switching\n");
                spec->dyn_adc_switch = 1;
        } else if (nums != spec->num_adc_nids) {
                /* shrink the invalid adcs and input paths */
                nums = 0;
                for (n = 0; n < spec->num_adc_nids; n++) {
                        if (!(ok_bits & (1 << n)))
                                continue;
                        if (n != nums) {
                                spec->adc_nids[nums] = spec->adc_nids[n];
                                for (i = 0; i < imux->num_items; i++) {
                                        invalidate_nid_path(codec,
                                                spec->input_paths[i][nums]);
                                        spec->input_paths[i][nums] =
                                                spec->input_paths[i][n];
                                        spec->input_paths[i][n] = 0;
                                }
                        }
                        nums++;
                }
                spec->num_adc_nids = nums;
        }

        if (imux->num_items == 1 ||
            (imux->num_items == 2 && spec->hp_mic)) {
                codec_dbg(codec, "reducing to a single ADC\n");
                spec->num_adc_nids = 1; /* reduce to a single ADC */
        }

        /* single index for individual volumes ctls */
        if (!spec->dyn_adc_switch && spec->multi_cap_vol)
                spec->num_adc_nids = 1;

        return 0;
}

/* parse capture source paths from the given pin and create imux items */
static int parse_capture_source(struct hda_codec *codec, hda_nid_t pin,
                                int cfg_idx, int num_adcs,
                                const char *label, int anchor)
{
        struct hda_gen_spec *spec = codec->spec;
        struct hda_input_mux *imux = &spec->input_mux;
        int imux_idx = imux->num_items;
        bool imux_added = false;
        int c;

        for (c = 0; c < num_adcs; c++) {
                struct nid_path *path;
                hda_nid_t adc = spec->adc_nids[c];

                if (!is_reachable_path(codec, pin, adc))
                        continue;
                path = snd_hda_add_new_path(codec, pin, adc, anchor);
                if (!path)
                        continue;
                print_nid_path(codec, "input", path);
                spec->input_paths[imux_idx][c] =
                        snd_hda_get_path_idx(codec, path);

                if (!imux_added) {
                        if (spec->hp_mic_pin == pin)
                                spec->hp_mic_mux_idx = imux->num_items;
                        spec->imux_pins[imux->num_items] = pin;
                        snd_hda_add_imux_item(codec, imux, label, cfg_idx, NULL);
                        imux_added = true;
                        if (spec->dyn_adc_switch)
                                spec->dyn_adc_idx[imux_idx] = c;
                }
        }

        return 0;
}

/*
 * create playback/capture controls for input pins
 */

/* fill the label for each input at first */
static int fill_input_pin_labels(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        const struct auto_pin_cfg *cfg = &spec->autocfg;
        int i;

        for (i = 0; i < cfg->num_inputs; i++) {
                hda_nid_t pin = cfg->inputs[i].pin;
                const char *label;
                int j, idx;

                if (!is_input_pin(codec, pin))
                        continue;

                label = hda_get_autocfg_input_label(codec, cfg, i);
                idx = 0;
                for (j = i - 1; j >= 0; j--) {
                        if (spec->input_labels[j] &&
                            !strcmp(spec->input_labels[j], label)) {
                                idx = spec->input_label_idxs[j] + 1;
                                break;
                        }
                }

                spec->input_labels[i] = label;
                spec->input_label_idxs[i] = idx;
        }

        return 0;
}

#define CFG_IDX_MIX     99      /* a dummy cfg->input idx for stereo mix */

static int create_input_ctls(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        const struct auto_pin_cfg *cfg = &spec->autocfg;
        hda_nid_t mixer = spec->mixer_nid;
        int num_adcs;
        int i, err;
        unsigned int val;

        num_adcs = fill_adc_nids(codec);
        if (num_adcs < 0)
                return 0;

        err = fill_input_pin_labels(codec);
        if (err < 0)
                return err;

        for (i = 0; i < cfg->num_inputs; i++) {
                hda_nid_t pin;

                pin = cfg->inputs[i].pin;
                if (!is_input_pin(codec, pin))
                        continue;

                val = PIN_IN;
                if (cfg->inputs[i].type == AUTO_PIN_MIC)
                        val |= snd_hda_get_default_vref(codec, pin);
                if (pin != spec->hp_mic_pin &&
                    !snd_hda_codec_get_pin_target(codec, pin))
                        set_pin_target(codec, pin, val, false);

                if (mixer) {
                        if (is_reachable_path(codec, pin, mixer)) {
                                err = new_analog_input(codec, i, pin,
                                                       spec->input_labels[i],
                                                       spec->input_label_idxs[i],
                                                       mixer);
                                if (err < 0)
                                        return err;
                        }
                }

                err = parse_capture_source(codec, pin, i, num_adcs,
                                           spec->input_labels[i], -mixer);
                if (err < 0)
                        return err;

                if (spec->add_jack_modes) {
                        err = create_in_jack_mode(codec, pin);
                        if (err < 0)
                                return err;
                }
        }

        /* add stereo mix when explicitly enabled via hint */
        if (mixer && spec->add_stereo_mix_input == HDA_HINT_STEREO_MIX_ENABLE) {
                err = parse_capture_source(codec, mixer, CFG_IDX_MIX, num_adcs,
                                           "Stereo Mix", 0);
                if (err < 0)
                        return err;
                else
                        spec->suppress_auto_mic = 1;
        }

        return 0;
}


/*
 * input source mux
 */

/* get the input path specified by the given adc and imux indices */
static struct nid_path *get_input_path(struct hda_codec *codec, int adc_idx, int imux_idx)
{
        struct hda_gen_spec *spec = codec->spec;
        if (imux_idx < 0 || imux_idx >= HDA_MAX_NUM_INPUTS) {
                snd_BUG();
                return NULL;
        }
        if (spec->dyn_adc_switch)
                adc_idx = spec->dyn_adc_idx[imux_idx];
        if (adc_idx < 0 || adc_idx >= AUTO_CFG_MAX_INS) {
                snd_BUG();
                return NULL;
        }
        return snd_hda_get_path_from_idx(codec, spec->input_paths[imux_idx][adc_idx]);
}

static int mux_select(struct hda_codec *codec, unsigned int adc_idx,
                      unsigned int idx);

static int mux_enum_info(struct snd_kcontrol *kcontrol,
                         struct snd_ctl_elem_info *uinfo)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        return snd_hda_input_mux_info(&spec->input_mux, uinfo);
}

static int mux_enum_get(struct snd_kcontrol *kcontrol,
                        struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        /* the ctls are created at once with multiple counts */
        unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);

        ucontrol->value.enumerated.item[0] = spec->cur_mux[adc_idx];
        return 0;
}

static int mux_enum_put(struct snd_kcontrol *kcontrol,
                            struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        unsigned int adc_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
        return mux_select(codec, adc_idx,
                          ucontrol->value.enumerated.item[0]);
}

static const struct snd_kcontrol_new cap_src_temp = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "Input Source",
        .info = mux_enum_info,
        .get = mux_enum_get,
        .put = mux_enum_put,
};

/*
 * capture volume and capture switch ctls
 */

typedef int (*put_call_t)(struct snd_kcontrol *kcontrol,
                          struct snd_ctl_elem_value *ucontrol);

/* call the given amp update function for all amps in the imux list at once */
static int cap_put_caller(struct snd_kcontrol *kcontrol,
                          struct snd_ctl_elem_value *ucontrol,
                          put_call_t func, int type)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        const struct hda_input_mux *imux;
        struct nid_path *path;
        int i, adc_idx, ret, err = 0;

        imux = &spec->input_mux;
        adc_idx = kcontrol->id.index;
        mutex_lock(&codec->control_mutex);
        for (i = 0; i < imux->num_items; i++) {
                path = get_input_path(codec, adc_idx, i);
                if (!path || !path->ctls[type])
                        continue;
                kcontrol->private_value = path->ctls[type];
                ret = func(kcontrol, ucontrol);
                if (ret < 0) {
                        err = ret;
                        break;
                }
                if (ret > 0)
                        err = 1;
        }
        mutex_unlock(&codec->control_mutex);
        if (err >= 0 && spec->cap_sync_hook)
                spec->cap_sync_hook(codec, kcontrol, ucontrol);
        return err;
}

/* capture volume ctl callbacks */
#define cap_vol_info            snd_hda_mixer_amp_volume_info
#define cap_vol_get             snd_hda_mixer_amp_volume_get
#define cap_vol_tlv             snd_hda_mixer_amp_tlv

static int cap_vol_put(struct snd_kcontrol *kcontrol,
                       struct snd_ctl_elem_value *ucontrol)
{
        return cap_put_caller(kcontrol, ucontrol,
                              snd_hda_mixer_amp_volume_put,
                              NID_PATH_VOL_CTL);
}

static const struct snd_kcontrol_new cap_vol_temp = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "Capture Volume",
        .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
                   SNDRV_CTL_ELEM_ACCESS_TLV_READ |
                   SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK),
        .info = cap_vol_info,
        .get = cap_vol_get,
        .put = cap_vol_put,
        .tlv = { .c = cap_vol_tlv },
};

/* capture switch ctl callbacks */
#define cap_sw_info             snd_ctl_boolean_stereo_info
#define cap_sw_get              snd_hda_mixer_amp_switch_get

static int cap_sw_put(struct snd_kcontrol *kcontrol,
                      struct snd_ctl_elem_value *ucontrol)
{
        return cap_put_caller(kcontrol, ucontrol,
                              snd_hda_mixer_amp_switch_put,
                              NID_PATH_MUTE_CTL);
}

static const struct snd_kcontrol_new cap_sw_temp = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "Capture Switch",
        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
        .info = cap_sw_info,
        .get = cap_sw_get,
        .put = cap_sw_put,
};

static int parse_capvol_in_path(struct hda_codec *codec, struct nid_path *path)
{
        hda_nid_t nid;
        int i, depth;

        path->ctls[NID_PATH_VOL_CTL] = path->ctls[NID_PATH_MUTE_CTL] = 0;
        for (depth = 0; depth < 3; depth++) {
                if (depth >= path->depth)
                        return -EINVAL;
                i = path->depth - depth - 1;
                nid = path->path[i];
                if (!path->ctls[NID_PATH_VOL_CTL]) {
                        if (nid_has_volume(codec, nid, HDA_OUTPUT))
                                path->ctls[NID_PATH_VOL_CTL] =
                                        HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT);
                        else if (nid_has_volume(codec, nid, HDA_INPUT)) {
                                int idx = path->idx[i];
                                if (!depth && codec->single_adc_amp)
                                        idx = 0;
                                path->ctls[NID_PATH_VOL_CTL] =
                                        HDA_COMPOSE_AMP_VAL(nid, 3, idx, HDA_INPUT);
                        }
                }
                if (!path->ctls[NID_PATH_MUTE_CTL]) {
                        if (nid_has_mute(codec, nid, HDA_OUTPUT))
                                path->ctls[NID_PATH_MUTE_CTL] =
                                        HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT);
                        else if (nid_has_mute(codec, nid, HDA_INPUT)) {
                                int idx = path->idx[i];
                                if (!depth && codec->single_adc_amp)
                                        idx = 0;
                                path->ctls[NID_PATH_MUTE_CTL] =
                                        HDA_COMPOSE_AMP_VAL(nid, 3, idx, HDA_INPUT);
                        }
                }
        }
        return 0;
}

static bool is_inv_dmic_pin(struct hda_codec *codec, hda_nid_t nid)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        unsigned int val;
        int i;

        if (!spec->inv_dmic_split)
                return false;
        for (i = 0; i < cfg->num_inputs; i++) {
                if (cfg->inputs[i].pin != nid)
                        continue;
                if (cfg->inputs[i].type != AUTO_PIN_MIC)
                        return false;
                val = snd_hda_codec_get_pincfg(codec, nid);
                return snd_hda_get_input_pin_attr(val) == INPUT_PIN_ATTR_INT;
        }
        return false;
}

/* capture switch put callback for a single control with hook call */
static int cap_single_sw_put(struct snd_kcontrol *kcontrol,
                             struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        int ret;

        ret = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
        if (ret < 0)
                return ret;

        if (spec->cap_sync_hook)
                spec->cap_sync_hook(codec, kcontrol, ucontrol);

        return ret;
}

static int add_single_cap_ctl(struct hda_codec *codec, const char *label,
                              int idx, bool is_switch, unsigned int ctl,
                              bool inv_dmic)
{
        struct hda_gen_spec *spec = codec->spec;
        char tmpname[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
        int type = is_switch ? HDA_CTL_WIDGET_MUTE : HDA_CTL_WIDGET_VOL;
        const char *sfx = is_switch ? "Switch" : "Volume";
        unsigned int chs = inv_dmic ? 1 : 3;
        struct snd_kcontrol_new *knew;

        if (!ctl)
                return 0;

        if (label)
                snprintf(tmpname, sizeof(tmpname),
                         "%s Capture %s", label, sfx);
        else
                snprintf(tmpname, sizeof(tmpname),
                         "Capture %s", sfx);
        knew = add_control(spec, type, tmpname, idx,
                           amp_val_replace_channels(ctl, chs));
        if (!knew)
                return -ENOMEM;
        if (is_switch) {
                knew->put = cap_single_sw_put;
                if (spec->mic_mute_led)
                        knew->access |= SNDRV_CTL_ELEM_ACCESS_MIC_LED;
        }
        if (!inv_dmic)
                return 0;

        /* Make independent right kcontrol */
        if (label)
                snprintf(tmpname, sizeof(tmpname),
                         "Inverted %s Capture %s", label, sfx);
        else
                snprintf(tmpname, sizeof(tmpname),
                         "Inverted Capture %s", sfx);
        knew = add_control(spec, type, tmpname, idx,
                           amp_val_replace_channels(ctl, 2));
        if (!knew)
                return -ENOMEM;
        if (is_switch) {
                knew->put = cap_single_sw_put;
                if (spec->mic_mute_led)
                        knew->access |= SNDRV_CTL_ELEM_ACCESS_MIC_LED;
        }
        return 0;
}

/* create single (and simple) capture volume and switch controls */
static int create_single_cap_vol_ctl(struct hda_codec *codec, int idx,
                                     unsigned int vol_ctl, unsigned int sw_ctl,
                                     bool inv_dmic)
{
        int err;
        err = add_single_cap_ctl(codec, NULL, idx, false, vol_ctl, inv_dmic);
        if (err < 0)
                return err;
        err = add_single_cap_ctl(codec, NULL, idx, true, sw_ctl, inv_dmic);
        if (err < 0)
                return err;
        return 0;
}

/* create bound capture volume and switch controls */
static int create_bind_cap_vol_ctl(struct hda_codec *codec, int idx,
                                   unsigned int vol_ctl, unsigned int sw_ctl)
{
        struct hda_gen_spec *spec = codec->spec;
        struct snd_kcontrol_new *knew;

        if (vol_ctl) {
                knew = snd_hda_gen_add_kctl(spec, NULL, &cap_vol_temp);
                if (!knew)
                        return -ENOMEM;
                knew->index = idx;
                knew->private_value = vol_ctl;
                knew->subdevice = HDA_SUBDEV_AMP_FLAG;
        }
        if (sw_ctl) {
                knew = snd_hda_gen_add_kctl(spec, NULL, &cap_sw_temp);
                if (!knew)
                        return -ENOMEM;
                knew->index = idx;
                knew->private_value = sw_ctl;
                knew->subdevice = HDA_SUBDEV_AMP_FLAG;
                if (spec->mic_mute_led)
                        knew->access |= SNDRV_CTL_ELEM_ACCESS_MIC_LED;
        }
        return 0;
}

/* return the vol ctl when used first in the imux list */
static unsigned int get_first_cap_ctl(struct hda_codec *codec, int idx, int type)
{
        struct nid_path *path;
        unsigned int ctl;
        int i;

        path = get_input_path(codec, 0, idx);
        if (!path)
                return 0;
        ctl = path->ctls[type];
        if (!ctl)
                return 0;
        for (i = 0; i < idx - 1; i++) {
                path = get_input_path(codec, 0, i);
                if (path && path->ctls[type] == ctl)
                        return 0;
        }
        return ctl;
}

/* create individual capture volume and switch controls per input */
static int create_multi_cap_vol_ctl(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct hda_input_mux *imux = &spec->input_mux;
        int i, err, type;

        for (i = 0; i < imux->num_items; i++) {
                bool inv_dmic;
                int idx;

                idx = imux->items[i].index;
                if (idx >= spec->autocfg.num_inputs)
                        continue;
                inv_dmic = is_inv_dmic_pin(codec, spec->imux_pins[i]);

                for (type = 0; type < 2; type++) {
                        err = add_single_cap_ctl(codec,
                                                 spec->input_labels[idx],
                                                 spec->input_label_idxs[idx],
                                                 type,
                                                 get_first_cap_ctl(codec, i, type),
                                                 inv_dmic);
                        if (err < 0)
                                return err;
                }
        }
        return 0;
}

static int create_capture_mixers(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct hda_input_mux *imux = &spec->input_mux;
        int i, n, nums, err;

        if (spec->dyn_adc_switch)
                nums = 1;
        else
                nums = spec->num_adc_nids;

        if (!spec->auto_mic && imux->num_items > 1) {
                struct snd_kcontrol_new *knew;
                const char *name;
                name = nums > 1 ? "Input Source" : "Capture Source";
                knew = snd_hda_gen_add_kctl(spec, name, &cap_src_temp);
                if (!knew)
                        return -ENOMEM;
                knew->count = nums;
        }

        for (n = 0; n < nums; n++) {
                bool multi = false;
                bool multi_cap_vol = spec->multi_cap_vol;
                bool inv_dmic = false;
                int vol, sw;

                vol = sw = 0;
                for (i = 0; i < imux->num_items; i++) {
                        struct nid_path *path;
                        path = get_input_path(codec, n, i);
                        if (!path)
                                continue;
                        parse_capvol_in_path(codec, path);
                        if (!vol)
                                vol = path->ctls[NID_PATH_VOL_CTL];
                        else if (vol != path->ctls[NID_PATH_VOL_CTL]) {
                                multi = true;
                                if (!same_amp_caps(codec, vol,
                                    path->ctls[NID_PATH_VOL_CTL], HDA_INPUT))
                                        multi_cap_vol = true;
                        }
                        if (!sw)
                                sw = path->ctls[NID_PATH_MUTE_CTL];
                        else if (sw != path->ctls[NID_PATH_MUTE_CTL]) {
                                multi = true;
                                if (!same_amp_caps(codec, sw,
                                    path->ctls[NID_PATH_MUTE_CTL], HDA_INPUT))
                                        multi_cap_vol = true;
                        }
                        if (is_inv_dmic_pin(codec, spec->imux_pins[i]))
                                inv_dmic = true;
                }

                if (!multi)
                        err = create_single_cap_vol_ctl(codec, n, vol, sw,
                                                        inv_dmic);
                else if (!multi_cap_vol && !inv_dmic)
                        err = create_bind_cap_vol_ctl(codec, n, vol, sw);
                else
                        err = create_multi_cap_vol_ctl(codec);
                if (err < 0)
                        return err;
        }

        return 0;
}

/*
 * add mic boosts if needed
 */

/* check whether the given amp is feasible as a boost volume */
static bool check_boost_vol(struct hda_codec *codec, hda_nid_t nid,
                            int dir, int idx)
{
        unsigned int step;

        if (!nid_has_volume(codec, nid, dir) ||
            is_ctl_associated(codec, nid, dir, idx, NID_PATH_VOL_CTL) ||
            is_ctl_associated(codec, nid, dir, idx, NID_PATH_BOOST_CTL))
                return false;

        step = (query_amp_caps(codec, nid, dir) & AC_AMPCAP_STEP_SIZE)
                >> AC_AMPCAP_STEP_SIZE_SHIFT;
        if (step < 0x20)
                return false;
        return true;
}

/* look for a boost amp in a widget close to the pin */
static unsigned int look_for_boost_amp(struct hda_codec *codec,
                                       struct nid_path *path)
{
        unsigned int val = 0;
        hda_nid_t nid;
        int depth;

        for (depth = 0; depth < 3; depth++) {
                if (depth >= path->depth - 1)
                        break;
                nid = path->path[depth];
                if (depth && check_boost_vol(codec, nid, HDA_OUTPUT, 0)) {
                        val = HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT);
                        break;
                } else if (check_boost_vol(codec, nid, HDA_INPUT,
                                           path->idx[depth])) {
                        val = HDA_COMPOSE_AMP_VAL(nid, 3, path->idx[depth],
                                                  HDA_INPUT);
                        break;
                }
        }

        return val;
}

static int parse_mic_boost(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        struct hda_input_mux *imux = &spec->input_mux;
        int i;

        if (!spec->num_adc_nids)
                return 0;

        for (i = 0; i < imux->num_items; i++) {
                struct nid_path *path;
                unsigned int val;
                int idx;
                char boost_label[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];

                idx = imux->items[i].index;
                if (idx >= imux->num_items)
                        continue;

                /* check only line-in and mic pins */
                if (cfg->inputs[idx].type > AUTO_PIN_LINE_IN)
                        continue;

                path = get_input_path(codec, 0, i);
                if (!path)
                        continue;

                val = look_for_boost_amp(codec, path);
                if (!val)
                        continue;

                /* create a boost control */
                snprintf(boost_label, sizeof(boost_label),
                         "%s Boost Volume", spec->input_labels[idx]);
                if (!add_control(spec, HDA_CTL_WIDGET_VOL, boost_label,
                                 spec->input_label_idxs[idx], val))
                        return -ENOMEM;

                path->ctls[NID_PATH_BOOST_CTL] = val;
        }
        return 0;
}

#ifdef CONFIG_SND_HDA_GENERIC_LEDS
/*
 * vmaster mute LED hook helpers
 */

static int create_mute_led_cdev(struct hda_codec *codec,
                                int (*callback)(struct led_classdev *,
                                                enum led_brightness),
                                bool micmute)
{
        struct hda_gen_spec *spec = codec->spec;
        struct led_classdev *cdev;
        int idx = micmute ? LED_AUDIO_MICMUTE : LED_AUDIO_MUTE;
        int err;

        cdev = devm_kzalloc(&codec->core.dev, sizeof(*cdev), GFP_KERNEL);
        if (!cdev)
                return -ENOMEM;

        cdev->name = micmute ? "hda::micmute" : "hda::mute";
        cdev->max_brightness = 1;
        cdev->default_trigger = micmute ? "audio-micmute" : "audio-mute";
        cdev->brightness_set_blocking = callback;
        cdev->flags = LED_CORE_SUSPENDRESUME;

        err = led_classdev_register(&codec->core.dev, cdev);
        if (err < 0)
                return err;
        spec->led_cdevs[idx] = cdev;
        return 0;
}

/**
 * snd_hda_gen_add_mute_led_cdev - Create a LED classdev and enable as vmaster mute LED
 * @codec: the HDA codec
 * @callback: the callback for LED classdev brightness_set_blocking
 */
int snd_hda_gen_add_mute_led_cdev(struct hda_codec *codec,
                                  int (*callback)(struct led_classdev *,
                                                  enum led_brightness))
{
        struct hda_gen_spec *spec = codec->spec;
        int err;

        if (callback) {
                err = create_mute_led_cdev(codec, callback, false);
                if (err) {
                        codec_warn(codec, "failed to create a mute LED cdev\n");
                        return err;
                }
        }

        if (spec->vmaster_mute.hook)
                codec_err(codec, "vmaster hook already present before cdev!\n");

        spec->vmaster_mute_led = 1;
        return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_add_mute_led_cdev);

/**
 * snd_hda_gen_add_micmute_led_cdev - Create a LED classdev and enable as mic-mute LED
 * @codec: the HDA codec
 * @callback: the callback for LED classdev brightness_set_blocking
 *
 * Called from the codec drivers for offering the mic mute LED controls.
 * This creates a LED classdev and sets up the cap_sync_hook that is called at
 * each time when the capture mixer switch changes.
 *
 * When NULL is passed to @callback, no classdev is created but only the
 * LED-trigger is set up.
 *
 * Returns 0 or a negative error.
 */
int snd_hda_gen_add_micmute_led_cdev(struct hda_codec *codec,
                                     int (*callback)(struct led_classdev *,
                                                     enum led_brightness))
{
        struct hda_gen_spec *spec = codec->spec;
        int err;

        if (callback) {
                err = create_mute_led_cdev(codec, callback, true);
                if (err) {
                        codec_warn(codec, "failed to create a mic-mute LED cdev\n");
                        return err;
                }
        }

        spec->mic_mute_led = 1;
        return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_add_micmute_led_cdev);
#endif /* CONFIG_SND_HDA_GENERIC_LEDS */

/*
 * parse digital I/Os and set up NIDs in BIOS auto-parse mode
 */
static void parse_digital(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct nid_path *path;
        int i, nums;
        hda_nid_t dig_nid, pin;

        /* support multiple SPDIFs; the secondary is set up as a follower */
        nums = 0;
        for (i = 0; i < spec->autocfg.dig_outs; i++) {
                pin = spec->autocfg.dig_out_pins[i];
                dig_nid = look_for_dac(codec, pin, true);
                if (!dig_nid)
                        continue;
                path = snd_hda_add_new_path(codec, dig_nid, pin, 0);
                if (!path)
                        continue;
                print_nid_path(codec, "digout", path);
                path->active = true;
                path->pin_fixed = true; /* no jack detection */
                spec->digout_paths[i] = snd_hda_get_path_idx(codec, path);
                set_pin_target(codec, pin, PIN_OUT, false);
                if (!nums) {
                        spec->multiout.dig_out_nid = dig_nid;
                        spec->dig_out_type = spec->autocfg.dig_out_type[0];
                } else {
                        spec->multiout.follower_dig_outs = spec->follower_dig_outs;
                        if (nums >= ARRAY_SIZE(spec->follower_dig_outs) - 1)
                                break;
                        spec->follower_dig_outs[nums - 1] = dig_nid;
                }
                nums++;
        }

        if (spec->autocfg.dig_in_pin) {
                pin = spec->autocfg.dig_in_pin;
                for_each_hda_codec_node(dig_nid, codec) {
                        unsigned int wcaps = get_wcaps(codec, dig_nid);
                        if (get_wcaps_type(wcaps) != AC_WID_AUD_IN)
                                continue;
                        if (!(wcaps & AC_WCAP_DIGITAL))
                                continue;
                        path = snd_hda_add_new_path(codec, pin, dig_nid, 0);
                        if (path) {
                                print_nid_path(codec, "digin", path);
                                path->active = true;
                                path->pin_fixed = true; /* no jack */
                                spec->dig_in_nid = dig_nid;
                                spec->digin_path = snd_hda_get_path_idx(codec, path);
                                set_pin_target(codec, pin, PIN_IN, false);
                                break;
                        }
                }
        }
}


/*
 * input MUX handling
 */

static bool dyn_adc_pcm_resetup(struct hda_codec *codec, int cur);

/* select the given imux item; either unmute exclusively or select the route */
static int mux_select(struct hda_codec *codec, unsigned int adc_idx,
                      unsigned int idx)
{
        struct hda_gen_spec *spec = codec->spec;
        const struct hda_input_mux *imux;
        struct nid_path *old_path, *path;

        imux = &spec->input_mux;
        if (!imux->num_items)
                return 0;

        if (idx >= imux->num_items)
                idx = imux->num_items - 1;
        if (spec->cur_mux[adc_idx] == idx)
                return 0;

        old_path = get_input_path(codec, adc_idx, spec->cur_mux[adc_idx]);
        if (!old_path)
                return 0;
        if (old_path->active)
                snd_hda_activate_path(codec, old_path, false, false);

        spec->cur_mux[adc_idx] = idx;

        if (spec->hp_mic)
                update_hp_mic(codec, adc_idx, false);

        if (spec->dyn_adc_switch)
                dyn_adc_pcm_resetup(codec, idx);

        path = get_input_path(codec, adc_idx, idx);
        if (!path)
                return 0;
        if (path->active)
                return 0;
        snd_hda_activate_path(codec, path, true, false);
        if (spec->cap_sync_hook)
                spec->cap_sync_hook(codec, NULL, NULL);
        path_power_down_sync(codec, old_path);
        return 1;
}

/* power up/down widgets in the all paths that match with the given NID
 * as terminals (either start- or endpoint)
 *
 * returns the last changed NID, or zero if unchanged.
 */
static hda_nid_t set_path_power(struct hda_codec *codec, hda_nid_t nid,
                                int pin_state, int stream_state)
{
        struct hda_gen_spec *spec = codec->spec;
        hda_nid_t last, changed = 0;
        struct nid_path *path;
        int n;

        snd_array_for_each(&spec->paths, n, path) {
                if (!path->depth)
                        continue;
                if (path->path[0] == nid ||
                    path->path[path->depth - 1] == nid) {
                        bool pin_old = path->pin_enabled;
                        bool stream_old = path->stream_enabled;

                        if (pin_state >= 0)
                                path->pin_enabled = pin_state;
                        if (stream_state >= 0)
                                path->stream_enabled = stream_state;
                        if ((!path->pin_fixed && path->pin_enabled != pin_old)
                            || path->stream_enabled != stream_old) {
                                last = path_power_update(codec, path, true);
                                if (last)
                                        changed = last;
                        }
                }
        }
        return changed;
}

/* check the jack status for power control */
static bool detect_pin_state(struct hda_codec *codec, hda_nid_t pin)
{
        if (!is_jack_detectable(codec, pin))
                return true;
        return snd_hda_jack_detect_state(codec, pin) != HDA_JACK_NOT_PRESENT;
}

/* power up/down the paths of the given pin according to the jack state;
 * power = 0/1 : only power up/down if it matches with the jack state,
 *       < 0   : force power up/down to follow the jack sate
 *
 * returns the last changed NID, or zero if unchanged.
 */
static hda_nid_t set_pin_power_jack(struct hda_codec *codec, hda_nid_t pin,
                                    int power)
{
        bool on;

        if (!codec->power_save_node)
                return 0;

        on = detect_pin_state(codec, pin);

        if (power >= 0 && on != power)
                return 0;
        return set_path_power(codec, pin, on, -1);
}

static void pin_power_callback(struct hda_codec *codec,
                               struct hda_jack_callback *jack,
                               bool on)
{
        if (jack && jack->nid)
                sync_power_state_change(codec,
                                        set_pin_power_jack(codec, jack->nid, on));
}

/* callback only doing power up -- called at first */
static void pin_power_up_callback(struct hda_codec *codec,
                                  struct hda_jack_callback *jack)
{
        pin_power_callback(codec, jack, true);
}

/* callback only doing power down -- called at last */
static void pin_power_down_callback(struct hda_codec *codec,
                                    struct hda_jack_callback *jack)
{
        pin_power_callback(codec, jack, false);
}

/* set up the power up/down callbacks */
static void add_pin_power_ctls(struct hda_codec *codec, int num_pins,
                               const hda_nid_t *pins, bool on)
{
        int i;
        hda_jack_callback_fn cb =
                on ? pin_power_up_callback : pin_power_down_callback;

        for (i = 0; i < num_pins && pins[i]; i++) {
                if (is_jack_detectable(codec, pins[i]))
                        snd_hda_jack_detect_enable_callback(codec, pins[i], cb);
                else
                        set_path_power(codec, pins[i], true, -1);
        }
}

/* enabled power callback to each available I/O pin with jack detections;
 * the digital I/O pins are excluded because of the unreliable detectsion
 */
static void add_all_pin_power_ctls(struct hda_codec *codec, bool on)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        int i;

        if (!codec->power_save_node)
                return;
        add_pin_power_ctls(codec, cfg->line_outs, cfg->line_out_pins, on);
        if (cfg->line_out_type != AUTO_PIN_HP_OUT)
                add_pin_power_ctls(codec, cfg->hp_outs, cfg->hp_pins, on);
        if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT)
                add_pin_power_ctls(codec, cfg->speaker_outs, cfg->speaker_pins, on);
        for (i = 0; i < cfg->num_inputs; i++)
                add_pin_power_ctls(codec, 1, &cfg->inputs[i].pin, on);
}

/* sync path power up/down with the jack states of given pins */
static void sync_pin_power_ctls(struct hda_codec *codec, int num_pins,
                                const hda_nid_t *pins)
{
        int i;

        for (i = 0; i < num_pins && pins[i]; i++)
                if (is_jack_detectable(codec, pins[i]))
                        set_pin_power_jack(codec, pins[i], -1);
}

/* sync path power up/down with pins; called at init and resume */
static void sync_all_pin_power_ctls(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        int i;

        if (!codec->power_save_node)
                return;
        sync_pin_power_ctls(codec, cfg->line_outs, cfg->line_out_pins);
        if (cfg->line_out_type != AUTO_PIN_HP_OUT)
                sync_pin_power_ctls(codec, cfg->hp_outs, cfg->hp_pins);
        if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT)
                sync_pin_power_ctls(codec, cfg->speaker_outs, cfg->speaker_pins);
        for (i = 0; i < cfg->num_inputs; i++)
                sync_pin_power_ctls(codec, 1, &cfg->inputs[i].pin);
}

/* add fake paths if not present yet */
static int add_fake_paths(struct hda_codec *codec, hda_nid_t nid,
                           int num_pins, const hda_nid_t *pins)
{
        struct hda_gen_spec *spec = codec->spec;
        struct nid_path *path;
        int i;

        for (i = 0; i < num_pins; i++) {
                if (!pins[i])
                        break;
                if (get_nid_path(codec, nid, pins[i], 0))
                        continue;
                path = snd_array_new(&spec->paths);
                if (!path)
                        return -ENOMEM;
                memset(path, 0, sizeof(*path));
                path->depth = 2;
                path->path[0] = nid;
                path->path[1] = pins[i];
                path->active = true;
        }
        return 0;
}

/* create fake paths to all outputs from beep */
static int add_fake_beep_paths(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        hda_nid_t nid = spec->beep_nid;
        int err;

        if (!codec->power_save_node || !nid)
                return 0;
        err = add_fake_paths(codec, nid, cfg->line_outs, cfg->line_out_pins);
        if (err < 0)
                return err;
        if (cfg->line_out_type != AUTO_PIN_HP_OUT) {
                err = add_fake_paths(codec, nid, cfg->hp_outs, cfg->hp_pins);
                if (err < 0)
                        return err;
        }
        if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) {
                err = add_fake_paths(codec, nid, cfg->speaker_outs,
                                     cfg->speaker_pins);
                if (err < 0)
                        return err;
        }
        return 0;
}

/* power up/down beep widget and its output paths */
static void beep_power_hook(struct hda_beep *beep, bool on)
{
        set_path_power(beep->codec, beep->nid, -1, on);
}

/**
 * snd_hda_gen_fix_pin_power - Fix the power of the given pin widget to D0
 * @codec: the HDA codec
 * @pin: NID of pin to fix
 */
int snd_hda_gen_fix_pin_power(struct hda_codec *codec, hda_nid_t pin)
{
        struct hda_gen_spec *spec = codec->spec;
        struct nid_path *path;

        path = snd_array_new(&spec->paths);
        if (!path)
                return -ENOMEM;
        memset(path, 0, sizeof(*path));
        path->depth = 1;
        path->path[0] = pin;
        path->active = true;
        path->pin_fixed = true;
        path->stream_enabled = true;
        return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_fix_pin_power);

/*
 * Jack detections for HP auto-mute and mic-switch
 */

/* check each pin in the given array; returns true if any of them is plugged */
static bool detect_jacks(struct hda_codec *codec, int num_pins, const hda_nid_t *pins)
{
        int i;
        bool present = false;

        for (i = 0; i < num_pins; i++) {
                hda_nid_t nid = pins[i];
                if (!nid)
                        break;
                /* don't detect pins retasked as inputs */
                if (snd_hda_codec_get_pin_target(codec, nid) & AC_PINCTL_IN_EN)
                        continue;
                if (snd_hda_jack_detect_state(codec, nid) == HDA_JACK_PRESENT)
                        present = true;
        }
        return present;
}

/* standard HP/line-out auto-mute helper */
static void do_automute(struct hda_codec *codec, int num_pins, const hda_nid_t *pins,
                        int *paths, bool mute)
{
        struct hda_gen_spec *spec = codec->spec;
        int i;

        for (i = 0; i < num_pins; i++) {
                hda_nid_t nid = pins[i];
                unsigned int val, oldval;
                if (!nid)
                        break;

                oldval = snd_hda_codec_get_pin_target(codec, nid);
                if (oldval & PIN_IN)
                        continue; /* no mute for inputs */

                if (spec->auto_mute_via_amp) {
                        struct nid_path *path;
                        hda_nid_t mute_nid;

                        path = snd_hda_get_path_from_idx(codec, paths[i]);
                        if (!path)
                                continue;
                        mute_nid = get_amp_nid_(path->ctls[NID_PATH_MUTE_CTL]);
                        if (!mute_nid)
                                continue;
                        if (mute)
                                spec->mute_bits |= (1ULL << mute_nid);
                        else
                                spec->mute_bits &= ~(1ULL << mute_nid);
                        continue;
                } else {
                        /* don't reset VREF value in case it's controlling
                         * the amp (see alc861_fixup_asus_amp_vref_0f())
                         */
                        if (spec->keep_vref_in_automute)
                                val = oldval & ~PIN_HP;
                        else
                                val = 0;
                        if (!mute)
                                val |= oldval;
                        /* here we call update_pin_ctl() so that the pinctl is
                         * changed without changing the pinctl target value;
                         * the original target value will be still referred at
                         * the init / resume again
                         */
                        update_pin_ctl(codec, nid, val);
                }

                set_pin_eapd(codec, nid, !mute);
                if (codec->power_save_node) {
                        bool on = !mute;
                        if (on)
                                on = detect_pin_state(codec, nid);
                        set_path_power(codec, nid, on, -1);
                }
        }
}

/**
 * snd_hda_gen_update_outputs - Toggle outputs muting
 * @codec: the HDA codec
 *
 * Update the mute status of all outputs based on the current jack states.
 */
void snd_hda_gen_update_outputs(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        int *paths;
        int on;

        /* Control HP pins/amps depending on master_mute state;
         * in general, HP pins/amps control should be enabled in all cases,
         * but currently set only for master_mute, just to be safe
         */
        if (spec->autocfg.line_out_type == AUTO_PIN_HP_OUT)
                paths = spec->out_paths;
        else
                paths = spec->hp_paths;
        do_automute(codec, ARRAY_SIZE(spec->autocfg.hp_pins),
                    spec->autocfg.hp_pins, paths, spec->master_mute);

        if (!spec->automute_speaker)
                on = 0;
        else
                on = spec->hp_jack_present | spec->line_jack_present;
        on |= spec->master_mute;
        spec->speaker_muted = on;
        if (spec->autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT)
                paths = spec->out_paths;
        else
                paths = spec->speaker_paths;
        do_automute(codec, ARRAY_SIZE(spec->autocfg.speaker_pins),
                    spec->autocfg.speaker_pins, paths, on);

        /* toggle line-out mutes if needed, too */
        /* if LO is a copy of either HP or Speaker, don't need to handle it */
        if (spec->autocfg.line_out_pins[0] == spec->autocfg.hp_pins[0] ||
            spec->autocfg.line_out_pins[0] == spec->autocfg.speaker_pins[0])
                return;
        if (!spec->automute_lo)
                on = 0;
        else
                on = spec->hp_jack_present;
        on |= spec->master_mute;
        spec->line_out_muted = on;
        paths = spec->out_paths;
        do_automute(codec, ARRAY_SIZE(spec->autocfg.line_out_pins),
                    spec->autocfg.line_out_pins, paths, on);
}
EXPORT_SYMBOL_GPL(snd_hda_gen_update_outputs);

static void call_update_outputs(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        if (spec->automute_hook)
                spec->automute_hook(codec);
        else
                snd_hda_gen_update_outputs(codec);

        /* sync the whole vmaster followers to reflect the new auto-mute status */
        if (spec->auto_mute_via_amp && !codec->bus->shutdown)
                snd_ctl_sync_vmaster(spec->vmaster_mute.sw_kctl, false);
}

/**
 * snd_hda_gen_hp_automute - standard HP-automute helper
 * @codec: the HDA codec
 * @jack: jack object, NULL for the whole
 */
void snd_hda_gen_hp_automute(struct hda_codec *codec,
                             struct hda_jack_callback *jack)
{
        struct hda_gen_spec *spec = codec->spec;
        hda_nid_t *pins = spec->autocfg.hp_pins;
        int num_pins = ARRAY_SIZE(spec->autocfg.hp_pins);

        /* No detection for the first HP jack during indep-HP mode */
        if (spec->indep_hp_enabled) {
                pins++;
                num_pins--;
        }

        spec->hp_jack_present = detect_jacks(codec, num_pins, pins);
        if (!spec->detect_hp || (!spec->automute_speaker && !spec->automute_lo))
                return;
        call_update_outputs(codec);
}
EXPORT_SYMBOL_GPL(snd_hda_gen_hp_automute);

/**
 * snd_hda_gen_line_automute - standard line-out-automute helper
 * @codec: the HDA codec
 * @jack: jack object, NULL for the whole
 */
void snd_hda_gen_line_automute(struct hda_codec *codec,
                               struct hda_jack_callback *jack)
{
        struct hda_gen_spec *spec = codec->spec;

        if (spec->autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT)
                return;
        /* check LO jack only when it's different from HP */
        if (spec->autocfg.line_out_pins[0] == spec->autocfg.hp_pins[0])
                return;

        spec->line_jack_present =
                detect_jacks(codec, ARRAY_SIZE(spec->autocfg.line_out_pins),
                             spec->autocfg.line_out_pins);
        if (!spec->automute_speaker || !spec->detect_lo)
                return;
        call_update_outputs(codec);
}
EXPORT_SYMBOL_GPL(snd_hda_gen_line_automute);

/**
 * snd_hda_gen_mic_autoswitch - standard mic auto-switch helper
 * @codec: the HDA codec
 * @jack: jack object, NULL for the whole
 */
void snd_hda_gen_mic_autoswitch(struct hda_codec *codec,
                                struct hda_jack_callback *jack)
{
        struct hda_gen_spec *spec = codec->spec;
        int i;

        if (!spec->auto_mic)
                return;

        for (i = spec->am_num_entries - 1; i > 0; i--) {
                hda_nid_t pin = spec->am_entry[i].pin;
                /* don't detect pins retasked as outputs */
                if (snd_hda_codec_get_pin_target(codec, pin) & AC_PINCTL_OUT_EN)
                        continue;
                if (snd_hda_jack_detect_state(codec, pin) == HDA_JACK_PRESENT) {
                        mux_select(codec, 0, spec->am_entry[i].idx);
                        return;
                }
        }
        mux_select(codec, 0, spec->am_entry[0].idx);
}
EXPORT_SYMBOL_GPL(snd_hda_gen_mic_autoswitch);

/* call appropriate hooks */
static void call_hp_automute(struct hda_codec *codec,
                             struct hda_jack_callback *jack)
{
        struct hda_gen_spec *spec = codec->spec;
        if (spec->hp_automute_hook)
                spec->hp_automute_hook(codec, jack);
        else
                snd_hda_gen_hp_automute(codec, jack);
}

static void call_line_automute(struct hda_codec *codec,
                               struct hda_jack_callback *jack)
{
        struct hda_gen_spec *spec = codec->spec;
        if (spec->line_automute_hook)
                spec->line_automute_hook(codec, jack);
        else
                snd_hda_gen_line_automute(codec, jack);
}

static void call_mic_autoswitch(struct hda_codec *codec,
                                struct hda_jack_callback *jack)
{
        struct hda_gen_spec *spec = codec->spec;
        if (spec->mic_autoswitch_hook)
                spec->mic_autoswitch_hook(codec, jack);
        else
                snd_hda_gen_mic_autoswitch(codec, jack);
}

/* update jack retasking */
static void update_automute_all(struct hda_codec *codec)
{
        call_hp_automute(codec, NULL);
        call_line_automute(codec, NULL);
        call_mic_autoswitch(codec, NULL);
}

/*
 * Auto-Mute mode mixer enum support
 */
static int automute_mode_info(struct snd_kcontrol *kcontrol,
                              struct snd_ctl_elem_info *uinfo)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        static const char * const texts3[] = {
                "Disabled", "Speaker Only", "Line Out+Speaker"
        };

        if (spec->automute_speaker_possible && spec->automute_lo_possible)
                return snd_hda_enum_helper_info(kcontrol, uinfo, 3, texts3);
        return snd_hda_enum_bool_helper_info(kcontrol, uinfo);
}

static int automute_mode_get(struct snd_kcontrol *kcontrol,
                             struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;
        unsigned int val = 0;
        if (spec->automute_speaker)
                val++;
        if (spec->automute_lo)
                val++;

        ucontrol->value.enumerated.item[0] = val;
        return 0;
}

static int automute_mode_put(struct snd_kcontrol *kcontrol,
                             struct snd_ctl_elem_value *ucontrol)
{
        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
        struct hda_gen_spec *spec = codec->spec;

        switch (ucontrol->value.enumerated.item[0]) {
        case 0:
                if (!spec->automute_speaker && !spec->automute_lo)
                        return 0;
                spec->automute_speaker = 0;
                spec->automute_lo = 0;
                break;
        case 1:
                if (spec->automute_speaker_possible) {
                        if (!spec->automute_lo && spec->automute_speaker)
                                return 0;
                        spec->automute_speaker = 1;
                        spec->automute_lo = 0;
                } else if (spec->automute_lo_possible) {
                        if (spec->automute_lo)
                                return 0;
                        spec->automute_lo = 1;
                } else
                        return -EINVAL;
                break;
        case 2:
                if (!spec->automute_lo_possible || !spec->automute_speaker_possible)
                        return -EINVAL;
                if (spec->automute_speaker && spec->automute_lo)
                        return 0;
                spec->automute_speaker = 1;
                spec->automute_lo = 1;
                break;
        default:
                return -EINVAL;
        }
        call_update_outputs(codec);
        return 1;
}

static const struct snd_kcontrol_new automute_mode_enum = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "Auto-Mute Mode",
        .info = automute_mode_info,
        .get = automute_mode_get,
        .put = automute_mode_put,
};

static int add_automute_mode_enum(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;

        if (!snd_hda_gen_add_kctl(spec, NULL, &automute_mode_enum))
                return -ENOMEM;
        return 0;
}

/*
 * Check the availability of HP/line-out auto-mute;
 * Set up appropriately if really supported
 */
static int check_auto_mute_availability(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        int present = 0;
        int i, err;

        if (spec->suppress_auto_mute)
                return 0;

        if (cfg->hp_pins[0])
                present++;
        if (cfg->line_out_pins[0])
                present++;
        if (cfg->speaker_pins[0])
                present++;
        if (present < 2) /* need two different output types */
                return 0;

        if (!cfg->speaker_pins[0] &&
            cfg->line_out_type == AUTO_PIN_SPEAKER_OUT) {
                memcpy(cfg->speaker_pins, cfg->line_out_pins,
                       sizeof(cfg->speaker_pins));
                cfg->speaker_outs = cfg->line_outs;
        }

        if (!cfg->hp_pins[0] &&
            cfg->line_out_type == AUTO_PIN_HP_OUT) {
                memcpy(cfg->hp_pins, cfg->line_out_pins,
                       sizeof(cfg->hp_pins));
                cfg->hp_outs = cfg->line_outs;
        }

        for (i = 0; i < cfg->hp_outs; i++) {
                hda_nid_t nid = cfg->hp_pins[i];
                if (!is_jack_detectable(codec, nid))
                        continue;
                codec_dbg(codec, "Enable HP auto-muting on NID 0x%x\n", nid);
                snd_hda_jack_detect_enable_callback(codec, nid,
                                                    call_hp_automute);
                spec->detect_hp = 1;
        }

        if (cfg->line_out_type == AUTO_PIN_LINE_OUT && cfg->line_outs) {
                if (cfg->speaker_outs)
                        for (i = 0; i < cfg->line_outs; i++) {
                                hda_nid_t nid = cfg->line_out_pins[i];
                                if (!is_jack_detectable(codec, nid))
                                        continue;
                                codec_dbg(codec, "Enable Line-Out auto-muting on NID 0x%x\n", nid);
                                snd_hda_jack_detect_enable_callback(codec, nid,
                                                                    call_line_automute);
                                spec->detect_lo = 1;
                        }
                spec->automute_lo_possible = spec->detect_hp;
        }

        spec->automute_speaker_possible = cfg->speaker_outs &&
                (spec->detect_hp || spec->detect_lo);

        spec->automute_lo = spec->automute_lo_possible;
        spec->automute_speaker = spec->automute_speaker_possible;

        if (spec->automute_speaker_possible || spec->automute_lo_possible) {
                /* create a control for automute mode */
                err = add_automute_mode_enum(codec);
                if (err < 0)
                        return err;
        }
        return 0;
}

/* check whether all auto-mic pins are valid; setup indices if OK */
static bool auto_mic_check_imux(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        const struct hda_input_mux *imux;
        int i;

        imux = &spec->input_mux;
        for (i = 0; i < spec->am_num_entries; i++) {
                spec->am_entry[i].idx =
                        find_idx_in_nid_list(spec->am_entry[i].pin,
                                             spec->imux_pins, imux->num_items);
                if (spec->am_entry[i].idx < 0)
                        return false; /* no corresponding imux */
        }

        /* we don't need the jack detection for the first pin */
        for (i = 1; i < spec->am_num_entries; i++)
                snd_hda_jack_detect_enable_callback(codec,
                                                    spec->am_entry[i].pin,
                                                    call_mic_autoswitch);
        return true;
}

static int compare_attr(const void *ap, const void *bp)
{
        const struct automic_entry *a = ap;
        const struct automic_entry *b = bp;
        return (int)(a->attr - b->attr);
}

/*
 * Check the availability of auto-mic switch;
 * Set up if really supported
 */
static int check_auto_mic_availability(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        unsigned int types;
        int i, num_pins;

        if (spec->suppress_auto_mic)
                return 0;

        types = 0;
        num_pins = 0;
        for (i = 0; i < cfg->num_inputs; i++) {
                hda_nid_t nid = cfg->inputs[i].pin;
                unsigned int attr;
                attr = snd_hda_codec_get_pincfg(codec, nid);
                attr = snd_hda_get_input_pin_attr(attr);
                if (types & (1 << attr))
                        return 0; /* already occupied */
                switch (attr) {
                case INPUT_PIN_ATTR_INT:
                        if (cfg->inputs[i].type != AUTO_PIN_MIC)
                                return 0; /* invalid type */
                        break;
                case INPUT_PIN_ATTR_UNUSED:
                        return 0; /* invalid entry */
                default:
                        if (cfg->inputs[i].type > AUTO_PIN_LINE_IN)
                                return 0; /* invalid type */
                        if (!spec->line_in_auto_switch &&
                            cfg->inputs[i].type != AUTO_PIN_MIC)
                                return 0; /* only mic is allowed */
                        if (!is_jack_detectable(codec, nid))
                                return 0; /* no unsol support */
                        break;
                }
                if (num_pins >= MAX_AUTO_MIC_PINS)
                        return 0;
                types |= (1 << attr);
                spec->am_entry[num_pins].pin = nid;
                spec->am_entry[num_pins].attr = attr;
                num_pins++;
        }

        if (num_pins < 2)
                return 0;

        spec->am_num_entries = num_pins;
        /* sort the am_entry in the order of attr so that the pin with a
         * higher attr will be selected when the jack is plugged.
         */
        sort(spec->am_entry, num_pins, sizeof(spec->am_entry[0]),
             compare_attr, NULL);

        if (!auto_mic_check_imux(codec))
                return 0;

        spec->auto_mic = 1;
        spec->num_adc_nids = 1;
        spec->cur_mux[0] = spec->am_entry[0].idx;
        codec_dbg(codec, "Enable auto-mic switch on NID 0x%x/0x%x/0x%x\n",
                    spec->am_entry[0].pin,
                    spec->am_entry[1].pin,
                    spec->am_entry[2].pin);

        return 0;
}

/**
 * snd_hda_gen_path_power_filter - power_filter hook to make inactive widgets
 * into power down
 * @codec: the HDA codec
 * @nid: NID to evalute
 * @power_state: target power state
 */
unsigned int snd_hda_gen_path_power_filter(struct hda_codec *codec,
                                                  hda_nid_t nid,
                                                  unsigned int power_state)
{
        struct hda_gen_spec *spec = codec->spec;

        if (!spec->power_down_unused && !codec->power_save_node)
                return power_state;
        if (power_state != AC_PWRST_D0 || nid == codec->core.afg)
                return power_state;
        if (get_wcaps_type(get_wcaps(codec, nid)) >= AC_WID_POWER)
                return power_state;
        if (is_active_nid_for_any(codec, nid))
                return power_state;
        return AC_PWRST_D3;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_path_power_filter);

/* mute all aamix inputs initially; parse up to the first leaves */
static void mute_all_mixer_nid(struct hda_codec *codec, hda_nid_t mix)
{
        int i, nums;
        const hda_nid_t *conn;
        bool has_amp;

        nums = snd_hda_get_conn_list(codec, mix, &conn);
        has_amp = nid_has_mute(codec, mix, HDA_INPUT);
        for (i = 0; i < nums; i++) {
                if (has_amp)
                        update_amp(codec, mix, HDA_INPUT, i,
                                   0xff, HDA_AMP_MUTE);
                else if (nid_has_volume(codec, conn[i], HDA_OUTPUT))
                        update_amp(codec, conn[i], HDA_OUTPUT, 0,
                                   0xff, HDA_AMP_MUTE);
        }
}

/**
 * snd_hda_gen_stream_pm - Stream power management callback
 * @codec: the HDA codec
 * @nid: audio widget
 * @on: power on/off flag
 *
 * Set this in patch_ops.stream_pm.  Only valid with power_save_node flag.
 */
void snd_hda_gen_stream_pm(struct hda_codec *codec, hda_nid_t nid, bool on)
{
        if (codec->power_save_node)
                set_path_power(codec, nid, -1, on);
}
EXPORT_SYMBOL_GPL(snd_hda_gen_stream_pm);

/* forcibly mute the speaker output without caching; return true if updated */
static bool force_mute_output_path(struct hda_codec *codec, hda_nid_t nid)
{
        if (!nid)
                return false;
        if (!nid_has_mute(codec, nid, HDA_OUTPUT))
                return false; /* no mute, skip */
        if (snd_hda_codec_amp_read(codec, nid, 0, HDA_OUTPUT, 0) &
            snd_hda_codec_amp_read(codec, nid, 1, HDA_OUTPUT, 0) &
            HDA_AMP_MUTE)
                return false; /* both channels already muted, skip */

        /* direct amp update without caching */
        snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
                            AC_AMP_SET_OUTPUT | AC_AMP_SET_LEFT |
                            AC_AMP_SET_RIGHT | HDA_AMP_MUTE);
        return true;
}

/**
 * snd_hda_gen_shutup_speakers - Forcibly mute the speaker outputs
 * @codec: the HDA codec
 *
 * Forcibly mute the speaker outputs, to be called at suspend or shutdown.
 *
 * The mute state done by this function isn't cached, hence the original state
 * will be restored at resume.
 *
 * Return true if the mute state has been changed.
 */
bool snd_hda_gen_shutup_speakers(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        const int *paths;
        const struct nid_path *path;
        int i, p, num_paths;
        bool updated = false;

        /* if already powered off, do nothing */
        if (!snd_hdac_is_power_on(&codec->core))
                return false;

        if (spec->autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT) {
                paths = spec->out_paths;
                num_paths = spec->autocfg.line_outs;
        } else {
                paths = spec->speaker_paths;
                num_paths = spec->autocfg.speaker_outs;
        }

        for (i = 0; i < num_paths; i++) {
                path = snd_hda_get_path_from_idx(codec, paths[i]);
                if (!path)
                        continue;
                for (p = 0; p < path->depth; p++)
                        if (force_mute_output_path(codec, path->path[p]))
                                updated = true;
        }

        return updated;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_shutup_speakers);

/**
 * snd_hda_gen_parse_auto_config - Parse the given BIOS configuration and
 * set up the hda_gen_spec
 * @codec: the HDA codec
 * @cfg: Parsed pin configuration
 *
 * return 1 if successful, 0 if the proper config is not found,
 * or a negative error code
 */
int snd_hda_gen_parse_auto_config(struct hda_codec *codec,
                                  struct auto_pin_cfg *cfg)
{
        struct hda_gen_spec *spec = codec->spec;
        int err;

        parse_user_hints(codec);

        if (spec->vmaster_mute_led || spec->mic_mute_led)
                snd_ctl_led_request();

        if (spec->mixer_nid && !spec->mixer_merge_nid)
                spec->mixer_merge_nid = spec->mixer_nid;

        if (cfg != &spec->autocfg) {
                spec->autocfg = *cfg;
                cfg = &spec->autocfg;
        }

        if (!spec->main_out_badness)
                spec->main_out_badness = &hda_main_out_badness;
        if (!spec->extra_out_badness)
                spec->extra_out_badness = &hda_extra_out_badness;

        fill_all_dac_nids(codec);

        if (!cfg->line_outs) {
                if (cfg->dig_outs || cfg->dig_in_pin) {
                        spec->multiout.max_channels = 2;
                        spec->no_analog = 1;
                        goto dig_only;
                }
                if (!cfg->num_inputs && !cfg->dig_in_pin)
                        return 0; /* can't find valid BIOS pin config */
        }

        if (!spec->no_primary_hp &&
            cfg->line_out_type == AUTO_PIN_SPEAKER_OUT &&
            cfg->line_outs <= cfg->hp_outs) {
                /* use HP as primary out */
                cfg->speaker_outs = cfg->line_outs;
                memcpy(cfg->speaker_pins, cfg->line_out_pins,
                       sizeof(cfg->speaker_pins));
                cfg->line_outs = cfg->hp_outs;
                memcpy(cfg->line_out_pins, cfg->hp_pins, sizeof(cfg->hp_pins));
                cfg->hp_outs = 0;
                memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
                cfg->line_out_type = AUTO_PIN_HP_OUT;
        }

        err = parse_output_paths(codec);
        if (err < 0)
                return err;
        err = create_multi_channel_mode(codec);
        if (err < 0)
                return err;
        err = create_multi_out_ctls(codec, cfg);
        if (err < 0)
                return err;
        err = create_hp_out_ctls(codec);
        if (err < 0)
                return err;
        err = create_speaker_out_ctls(codec);
        if (err < 0)
                return err;
        err = create_indep_hp_ctls(codec);
        if (err < 0)
                return err;
        err = create_loopback_mixing_ctl(codec);
        if (err < 0)
                return err;
        err = create_hp_mic(codec);
        if (err < 0)
                return err;
        err = create_input_ctls(codec);
        if (err < 0)
                return err;

        /* add power-down pin callbacks at first */
        add_all_pin_power_ctls(codec, false);

        spec->const_channel_count = spec->ext_channel_count;
        /* check the multiple speaker and headphone pins */
        if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT)
                spec->const_channel_count = max(spec->const_channel_count,
                                                cfg->speaker_outs * 2);
        if (cfg->line_out_type != AUTO_PIN_HP_OUT)
                spec->const_channel_count = max(spec->const_channel_count,
                                                cfg->hp_outs * 2);
        spec->multiout.max_channels = max(spec->ext_channel_count,
                                          spec->const_channel_count);

        err = check_auto_mute_availability(codec);
        if (err < 0)
                return err;

        err = check_dyn_adc_switch(codec);
        if (err < 0)
                return err;

        err = check_auto_mic_availability(codec);
        if (err < 0)
                return err;

        /* add stereo mix if available and not enabled yet */
        if (!spec->auto_mic && spec->mixer_nid &&
            spec->add_stereo_mix_input == HDA_HINT_STEREO_MIX_AUTO &&
            spec->input_mux.num_items > 1) {
                err = parse_capture_source(codec, spec->mixer_nid,
                                           CFG_IDX_MIX, spec->num_all_adcs,
                                           "Stereo Mix", 0);
                if (err < 0)
                        return err;
        }


        err = create_capture_mixers(codec);
        if (err < 0)
                return err;

        err = parse_mic_boost(codec);
        if (err < 0)
                return err;

        /* create "Headphone Mic Jack Mode" if no input selection is
         * available (or user specifies add_jack_modes hint)
         */
        if (spec->hp_mic_pin &&
            (spec->auto_mic || spec->input_mux.num_items == 1 ||
             spec->add_jack_modes)) {
                err = create_hp_mic_jack_mode(codec, spec->hp_mic_pin);
                if (err < 0)
                        return err;
        }

        if (spec->add_jack_modes) {
                if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) {
                        err = create_out_jack_modes(codec, cfg->line_outs,
                                                    cfg->line_out_pins);
                        if (err < 0)
                                return err;
                }
                if (cfg->line_out_type != AUTO_PIN_HP_OUT) {
                        err = create_out_jack_modes(codec, cfg->hp_outs,
                                                    cfg->hp_pins);
                        if (err < 0)
                                return err;
                }
        }

        /* add power-up pin callbacks at last */
        add_all_pin_power_ctls(codec, true);

        /* mute all aamix input initially */
        if (spec->mixer_nid)
                mute_all_mixer_nid(codec, spec->mixer_nid);

 dig_only:
        parse_digital(codec);

        if (spec->power_down_unused || codec->power_save_node) {
                if (!codec->power_filter)
                        codec->power_filter = snd_hda_gen_path_power_filter;
                if (!codec->patch_ops.stream_pm)
                        codec->patch_ops.stream_pm = snd_hda_gen_stream_pm;
        }

        if (!spec->no_analog && spec->beep_nid) {
                err = snd_hda_attach_beep_device(codec, spec->beep_nid);
                if (err < 0)
                        return err;
                if (codec->beep && codec->power_save_node) {
                        err = add_fake_beep_paths(codec);
                        if (err < 0)
                                return err;
                        codec->beep->power_hook = beep_power_hook;
                }
        }

        return 1;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_parse_auto_config);


/*
 * Build control elements
 */

/* follower controls for virtual master */
static const char * const follower_pfxs[] = {
        "Front", "Surround", "Center", "LFE", "Side",
        "Headphone", "Speaker", "Mono", "Line Out",
        "CLFE", "Bass Speaker", "PCM",
        "Speaker Front", "Speaker Surround", "Speaker CLFE", "Speaker Side",
        "Headphone Front", "Headphone Surround", "Headphone CLFE",
        "Headphone Side", "Headphone+LO", "Speaker+LO",
        NULL,
};

/**
 * snd_hda_gen_build_controls - Build controls from the parsed results
 * @codec: the HDA codec
 *
 * Pass this to build_controls patch_ops.
 */
int snd_hda_gen_build_controls(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        int err;

        if (spec->kctls.used) {
                err = snd_hda_add_new_ctls(codec, spec->kctls.list);
                if (err < 0)
                        return err;
        }

        if (spec->multiout.dig_out_nid) {
                err = snd_hda_create_dig_out_ctls(codec,
                                                  spec->multiout.dig_out_nid,
                                                  spec->multiout.dig_out_nid,
                                                  spec->pcm_rec[1]->pcm_type);
                if (err < 0)
                        return err;
                if (!spec->no_analog) {
                        err = snd_hda_create_spdif_share_sw(codec,
                                                            &spec->multiout);
                        if (err < 0)
                                return err;
                        spec->multiout.share_spdif = 1;
                }
        }
        if (spec->dig_in_nid) {
                err = snd_hda_create_spdif_in_ctls(codec, spec->dig_in_nid);
                if (err < 0)
                        return err;
        }

        /* if we have no master control, let's create it */
        if (!spec->no_analog && !spec->suppress_vmaster &&
            !snd_hda_find_mixer_ctl(codec, "Master Playback Volume")) {
                err = snd_hda_add_vmaster(codec, "Master Playback Volume",
                                          spec->vmaster_tlv, follower_pfxs,
                                          "Playback Volume", 0);
                if (err < 0)
                        return err;
        }
        if (!spec->no_analog && !spec->suppress_vmaster &&
            !snd_hda_find_mixer_ctl(codec, "Master Playback Switch")) {
                err = __snd_hda_add_vmaster(codec, "Master Playback Switch",
                                            NULL, follower_pfxs,
                                            "Playback Switch", true,
                                            spec->vmaster_mute_led ?
                                                SNDRV_CTL_ELEM_ACCESS_SPK_LED : 0,
                                            &spec->vmaster_mute.sw_kctl);
                if (err < 0)
                        return err;
                if (spec->vmaster_mute.hook) {
                        snd_hda_add_vmaster_hook(codec, &spec->vmaster_mute);
                        snd_hda_sync_vmaster_hook(&spec->vmaster_mute);
                }
        }

        free_kctls(spec); /* no longer needed */

        err = snd_hda_jack_add_kctls(codec, &spec->autocfg);
        if (err < 0)
                return err;

        return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_build_controls);


/*
 * PCM definitions
 */

static void call_pcm_playback_hook(struct hda_pcm_stream *hinfo,
                                   struct hda_codec *codec,
                                   struct snd_pcm_substream *substream,
                                   int action)
{
        struct hda_gen_spec *spec = codec->spec;
        if (spec->pcm_playback_hook)
                spec->pcm_playback_hook(hinfo, codec, substream, action);
}

static void call_pcm_capture_hook(struct hda_pcm_stream *hinfo,
                                  struct hda_codec *codec,
                                  struct snd_pcm_substream *substream,
                                  int action)
{
        struct hda_gen_spec *spec = codec->spec;
        if (spec->pcm_capture_hook)
                spec->pcm_capture_hook(hinfo, codec, substream, action);
}

/*
 * Analog playback callbacks
 */
static int playback_pcm_open(struct hda_pcm_stream *hinfo,
                             struct hda_codec *codec,
                             struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        int err;

        mutex_lock(&spec->pcm_mutex);
        err = snd_hda_multi_out_analog_open(codec,
                                            &spec->multiout, substream,
                                             hinfo);
        if (!err) {
                spec->active_streams |= 1 << STREAM_MULTI_OUT;
                call_pcm_playback_hook(hinfo, codec, substream,
                                       HDA_GEN_PCM_ACT_OPEN);
        }
        mutex_unlock(&spec->pcm_mutex);
        return err;
}

static int playback_pcm_prepare(struct hda_pcm_stream *hinfo,
                                struct hda_codec *codec,
                                unsigned int stream_tag,
                                unsigned int format,
                                struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        int err;

        err = snd_hda_multi_out_analog_prepare(codec, &spec->multiout,
                                               stream_tag, format, substream);
        if (!err)
                call_pcm_playback_hook(hinfo, codec, substream,
                                       HDA_GEN_PCM_ACT_PREPARE);
        return err;
}

static int playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
                                struct hda_codec *codec,
                                struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        int err;

        err = snd_hda_multi_out_analog_cleanup(codec, &spec->multiout);
        if (!err)
                call_pcm_playback_hook(hinfo, codec, substream,
                                       HDA_GEN_PCM_ACT_CLEANUP);
        return err;
}

static int playback_pcm_close(struct hda_pcm_stream *hinfo,
                              struct hda_codec *codec,
                              struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        mutex_lock(&spec->pcm_mutex);
        spec->active_streams &= ~(1 << STREAM_MULTI_OUT);
        call_pcm_playback_hook(hinfo, codec, substream,
                               HDA_GEN_PCM_ACT_CLOSE);
        mutex_unlock(&spec->pcm_mutex);
        return 0;
}

static int capture_pcm_open(struct hda_pcm_stream *hinfo,
                            struct hda_codec *codec,
                            struct snd_pcm_substream *substream)
{
        call_pcm_capture_hook(hinfo, codec, substream, HDA_GEN_PCM_ACT_OPEN);
        return 0;
}

static int capture_pcm_prepare(struct hda_pcm_stream *hinfo,
                               struct hda_codec *codec,
                               unsigned int stream_tag,
                               unsigned int format,
                               struct snd_pcm_substream *substream)
{
        snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
        call_pcm_capture_hook(hinfo, codec, substream,
                              HDA_GEN_PCM_ACT_PREPARE);
        return 0;
}

static int capture_pcm_cleanup(struct hda_pcm_stream *hinfo,
                               struct hda_codec *codec,
                               struct snd_pcm_substream *substream)
{
        snd_hda_codec_cleanup_stream(codec, hinfo->nid);
        call_pcm_capture_hook(hinfo, codec, substream,
                              HDA_GEN_PCM_ACT_CLEANUP);
        return 0;
}

static int capture_pcm_close(struct hda_pcm_stream *hinfo,
                             struct hda_codec *codec,
                             struct snd_pcm_substream *substream)
{
        call_pcm_capture_hook(hinfo, codec, substream, HDA_GEN_PCM_ACT_CLOSE);
        return 0;
}

static int alt_playback_pcm_open(struct hda_pcm_stream *hinfo,
                                 struct hda_codec *codec,
                                 struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        int err = 0;

        mutex_lock(&spec->pcm_mutex);
        if (spec->indep_hp && !spec->indep_hp_enabled)
                err = -EBUSY;
        else
                spec->active_streams |= 1 << STREAM_INDEP_HP;
        call_pcm_playback_hook(hinfo, codec, substream,
                               HDA_GEN_PCM_ACT_OPEN);
        mutex_unlock(&spec->pcm_mutex);
        return err;
}

static int alt_playback_pcm_close(struct hda_pcm_stream *hinfo,
                                  struct hda_codec *codec,
                                  struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        mutex_lock(&spec->pcm_mutex);
        spec->active_streams &= ~(1 << STREAM_INDEP_HP);
        call_pcm_playback_hook(hinfo, codec, substream,
                               HDA_GEN_PCM_ACT_CLOSE);
        mutex_unlock(&spec->pcm_mutex);
        return 0;
}

static int alt_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
                                    struct hda_codec *codec,
                                    unsigned int stream_tag,
                                    unsigned int format,
                                    struct snd_pcm_substream *substream)
{
        snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
        call_pcm_playback_hook(hinfo, codec, substream,
                               HDA_GEN_PCM_ACT_PREPARE);
        return 0;
}

static int alt_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
                                    struct hda_codec *codec,
                                    struct snd_pcm_substream *substream)
{
        snd_hda_codec_cleanup_stream(codec, hinfo->nid);
        call_pcm_playback_hook(hinfo, codec, substream,
                               HDA_GEN_PCM_ACT_CLEANUP);
        return 0;
}

/*
 * Digital out
 */
static int dig_playback_pcm_open(struct hda_pcm_stream *hinfo,
                                 struct hda_codec *codec,
                                 struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        return snd_hda_multi_out_dig_open(codec, &spec->multiout);
}

static int dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
                                    struct hda_codec *codec,
                                    unsigned int stream_tag,
                                    unsigned int format,
                                    struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
                                             stream_tag, format, substream);
}

static int dig_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
                                    struct hda_codec *codec,
                                    struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        return snd_hda_multi_out_dig_cleanup(codec, &spec->multiout);
}

static int dig_playback_pcm_close(struct hda_pcm_stream *hinfo,
                                  struct hda_codec *codec,
                                  struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        return snd_hda_multi_out_dig_close(codec, &spec->multiout);
}

/*
 * Analog capture
 */
#define alt_capture_pcm_open    capture_pcm_open
#define alt_capture_pcm_close   capture_pcm_close

static int alt_capture_pcm_prepare(struct hda_pcm_stream *hinfo,
                                   struct hda_codec *codec,
                                   unsigned int stream_tag,
                                   unsigned int format,
                                   struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;

        snd_hda_codec_setup_stream(codec, spec->adc_nids[substream->number + 1],
                                   stream_tag, 0, format);
        call_pcm_capture_hook(hinfo, codec, substream,
                              HDA_GEN_PCM_ACT_PREPARE);
        return 0;
}

static int alt_capture_pcm_cleanup(struct hda_pcm_stream *hinfo,
                                   struct hda_codec *codec,
                                   struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;

        snd_hda_codec_cleanup_stream(codec,
                                     spec->adc_nids[substream->number + 1]);
        call_pcm_capture_hook(hinfo, codec, substream,
                              HDA_GEN_PCM_ACT_CLEANUP);
        return 0;
}

/*
 */
static const struct hda_pcm_stream pcm_analog_playback = {
        .substreams = 1,
        .channels_min = 2,
        .channels_max = 8,
        /* NID is set in build_pcms */
        .ops = {
                .open = playback_pcm_open,
                .close = playback_pcm_close,
                .prepare = playback_pcm_prepare,
                .cleanup = playback_pcm_cleanup
        },
};

static const struct hda_pcm_stream pcm_analog_capture = {
        .substreams = 1,
        .channels_min = 2,
        .channels_max = 2,
        /* NID is set in build_pcms */
        .ops = {
                .open = capture_pcm_open,
                .close = capture_pcm_close,
                .prepare = capture_pcm_prepare,
                .cleanup = capture_pcm_cleanup
        },
};

static const struct hda_pcm_stream pcm_analog_alt_playback = {
        .substreams = 1,
        .channels_min = 2,
        .channels_max = 2,
        /* NID is set in build_pcms */
        .ops = {
                .open = alt_playback_pcm_open,
                .close = alt_playback_pcm_close,
                .prepare = alt_playback_pcm_prepare,
                .cleanup = alt_playback_pcm_cleanup
        },
};

static const struct hda_pcm_stream pcm_analog_alt_capture = {
        .substreams = 2, /* can be overridden */
        .channels_min = 2,
        .channels_max = 2,
        /* NID is set in build_pcms */
        .ops = {
                .open = alt_capture_pcm_open,
                .close = alt_capture_pcm_close,
                .prepare = alt_capture_pcm_prepare,
                .cleanup = alt_capture_pcm_cleanup
        },
};

static const struct hda_pcm_stream pcm_digital_playback = {
        .substreams = 1,
        .channels_min = 2,
        .channels_max = 2,
        /* NID is set in build_pcms */
        .ops = {
                .open = dig_playback_pcm_open,
                .close = dig_playback_pcm_close,
                .prepare = dig_playback_pcm_prepare,
                .cleanup = dig_playback_pcm_cleanup
        },
};

static const struct hda_pcm_stream pcm_digital_capture = {
        .substreams = 1,
        .channels_min = 2,
        .channels_max = 2,
        /* NID is set in build_pcms */
};

/* Used by build_pcms to flag that a PCM has no playback stream */
static const struct hda_pcm_stream pcm_null_stream = {
        .substreams = 0,
        .channels_min = 0,
        .channels_max = 0,
};

/*
 * dynamic changing ADC PCM streams
 */
static bool dyn_adc_pcm_resetup(struct hda_codec *codec, int cur)
{
        struct hda_gen_spec *spec = codec->spec;
        hda_nid_t new_adc = spec->adc_nids[spec->dyn_adc_idx[cur]];

        if (spec->cur_adc && spec->cur_adc != new_adc) {
                /* stream is running, let's swap the current ADC */
                __snd_hda_codec_cleanup_stream(codec, spec->cur_adc, 1);
                spec->cur_adc = new_adc;
                snd_hda_codec_setup_stream(codec, new_adc,
                                           spec->cur_adc_stream_tag, 0,
                                           spec->cur_adc_format);
                return true;
        }
        return false;
}

/* analog capture with dynamic dual-adc changes */
static int dyn_adc_capture_pcm_prepare(struct hda_pcm_stream *hinfo,
                                       struct hda_codec *codec,
                                       unsigned int stream_tag,
                                       unsigned int format,
                                       struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        spec->cur_adc = spec->adc_nids[spec->dyn_adc_idx[spec->cur_mux[0]]];
        spec->cur_adc_stream_tag = stream_tag;
        spec->cur_adc_format = format;
        snd_hda_codec_setup_stream(codec, spec->cur_adc, stream_tag, 0, format);
        call_pcm_capture_hook(hinfo, codec, substream, HDA_GEN_PCM_ACT_PREPARE);
        return 0;
}

static int dyn_adc_capture_pcm_cleanup(struct hda_pcm_stream *hinfo,
                                       struct hda_codec *codec,
                                       struct snd_pcm_substream *substream)
{
        struct hda_gen_spec *spec = codec->spec;
        snd_hda_codec_cleanup_stream(codec, spec->cur_adc);
        spec->cur_adc = 0;
        call_pcm_capture_hook(hinfo, codec, substream, HDA_GEN_PCM_ACT_CLEANUP);
        return 0;
}

static const struct hda_pcm_stream dyn_adc_pcm_analog_capture = {
        .substreams = 1,
        .channels_min = 2,
        .channels_max = 2,
        .nid = 0, /* fill later */
        .ops = {
                .prepare = dyn_adc_capture_pcm_prepare,
                .cleanup = dyn_adc_capture_pcm_cleanup
        },
};

static void fill_pcm_stream_name(char *str, size_t len, const char *sfx,
                                 const char *chip_name)
{
        char *p;

        if (*str)
                return;
        strscpy(str, chip_name, len);

        /* drop non-alnum chars after a space */
        for (p = strchr(str, ' '); p; p = strchr(p + 1, ' ')) {
                if (!isalnum(p[1])) {
                        *p = 0;
                        break;
                }
        }
        strlcat(str, sfx, len);
}

/* copy PCM stream info from @default_str, and override non-NULL entries
 * from @spec_str and @nid
 */
static void setup_pcm_stream(struct hda_pcm_stream *str,
                             const struct hda_pcm_stream *default_str,
                             const struct hda_pcm_stream *spec_str,
                             hda_nid_t nid)
{
        *str = *default_str;
        if (nid)
                str->nid = nid;
        if (spec_str) {
                if (spec_str->substreams)
                        str->substreams = spec_str->substreams;
                if (spec_str->channels_min)
                        str->channels_min = spec_str->channels_min;
                if (spec_str->channels_max)
                        str->channels_max = spec_str->channels_max;
                if (spec_str->rates)
                        str->rates = spec_str->rates;
                if (spec_str->formats)
                        str->formats = spec_str->formats;
                if (spec_str->maxbps)
                        str->maxbps = spec_str->maxbps;
        }
}

/**
 * snd_hda_gen_build_pcms - build PCM streams based on the parsed results
 * @codec: the HDA codec
 *
 * Pass this to build_pcms patch_ops.
 */
int snd_hda_gen_build_pcms(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct hda_pcm *info;
        bool have_multi_adcs;

        if (spec->no_analog)
                goto skip_analog;

        fill_pcm_stream_name(spec->stream_name_analog,
                             sizeof(spec->stream_name_analog),
                             " Analog", codec->core.chip_name);
        info = snd_hda_codec_pcm_new(codec, "%s", spec->stream_name_analog);
        if (!info)
                return -ENOMEM;
        spec->pcm_rec[0] = info;

        if (spec->multiout.num_dacs > 0) {
                setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_PLAYBACK],
                                 &pcm_analog_playback,
                                 spec->stream_analog_playback,
                                 spec->multiout.dac_nids[0]);
                info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max =
                        spec->multiout.max_channels;
                if (spec->autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT &&
                    spec->autocfg.line_outs == 2)
                        info->stream[SNDRV_PCM_STREAM_PLAYBACK].chmap =
                                snd_pcm_2_1_chmaps;
        }
        if (spec->num_adc_nids) {
                setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_CAPTURE],
                                 (spec->dyn_adc_switch ?
                                  &dyn_adc_pcm_analog_capture : &pcm_analog_capture),
                                 spec->stream_analog_capture,
                                 spec->adc_nids[0]);
        }

 skip_analog:
        /* SPDIF for stream index #1 */
        if (spec->multiout.dig_out_nid || spec->dig_in_nid) {
                fill_pcm_stream_name(spec->stream_name_digital,
                                     sizeof(spec->stream_name_digital),
                                     " Digital", codec->core.chip_name);
                info = snd_hda_codec_pcm_new(codec, "%s",
                                             spec->stream_name_digital);
                if (!info)
                        return -ENOMEM;
                codec->follower_dig_outs = spec->multiout.follower_dig_outs;
                spec->pcm_rec[1] = info;
                if (spec->dig_out_type)
                        info->pcm_type = spec->dig_out_type;
                else
                        info->pcm_type = HDA_PCM_TYPE_SPDIF;
                if (spec->multiout.dig_out_nid)
                        setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_PLAYBACK],
                                         &pcm_digital_playback,
                                         spec->stream_digital_playback,
                                         spec->multiout.dig_out_nid);
                if (spec->dig_in_nid)
                        setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_CAPTURE],
                                         &pcm_digital_capture,
                                         spec->stream_digital_capture,
                                         spec->dig_in_nid);
        }

        if (spec->no_analog)
                return 0;

        /* If the use of more than one ADC is requested for the current
         * model, configure a second analog capture-only PCM.
         */
        have_multi_adcs = (spec->num_adc_nids > 1) &&
                !spec->dyn_adc_switch && !spec->auto_mic;
        /* Additional Analaog capture for index #2 */
        if (spec->alt_dac_nid || have_multi_adcs) {
                fill_pcm_stream_name(spec->stream_name_alt_analog,
                                     sizeof(spec->stream_name_alt_analog),
                             " Alt Analog", codec->core.chip_name);
                info = snd_hda_codec_pcm_new(codec, "%s",
                                             spec->stream_name_alt_analog);
                if (!info)
                        return -ENOMEM;
                spec->pcm_rec[2] = info;
                if (spec->alt_dac_nid)
                        setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_PLAYBACK],
                                         &pcm_analog_alt_playback,
                                         spec->stream_analog_alt_playback,
                                         spec->alt_dac_nid);
                else
                        setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_PLAYBACK],
                                         &pcm_null_stream, NULL, 0);
                if (have_multi_adcs) {
                        setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_CAPTURE],
                                         &pcm_analog_alt_capture,
                                         spec->stream_analog_alt_capture,
                                         spec->adc_nids[1]);
                        info->stream[SNDRV_PCM_STREAM_CAPTURE].substreams =
                                spec->num_adc_nids - 1;
                } else {
                        setup_pcm_stream(&info->stream[SNDRV_PCM_STREAM_CAPTURE],
                                         &pcm_null_stream, NULL, 0);
                }
        }

        return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_build_pcms);


/*
 * Standard auto-parser initializations
 */

/* configure the given path as a proper output */
static void set_output_and_unmute(struct hda_codec *codec, int path_idx)
{
        struct nid_path *path;
        hda_nid_t pin;

        path = snd_hda_get_path_from_idx(codec, path_idx);
        if (!path || !path->depth)
                return;
        pin = path->path[path->depth - 1];
        restore_pin_ctl(codec, pin);
        snd_hda_activate_path(codec, path, path->active,
                              aamix_default(codec->spec));
        set_pin_eapd(codec, pin, path->active);
}

/* initialize primary output paths */
static void init_multi_out(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        int i;

        for (i = 0; i < spec->autocfg.line_outs; i++)
                set_output_and_unmute(codec, spec->out_paths[i]);
}


static void __init_extra_out(struct hda_codec *codec, int num_outs, int *paths)
{
        int i;

        for (i = 0; i < num_outs; i++)
                set_output_and_unmute(codec, paths[i]);
}

/* initialize hp and speaker paths */
static void init_extra_out(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;

        if (spec->autocfg.line_out_type != AUTO_PIN_HP_OUT)
                __init_extra_out(codec, spec->autocfg.hp_outs, spec->hp_paths);
        if (spec->autocfg.line_out_type != AUTO_PIN_SPEAKER_OUT)
                __init_extra_out(codec, spec->autocfg.speaker_outs,
                                 spec->speaker_paths);
}

/* initialize multi-io paths */
static void init_multi_io(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        int i;

        for (i = 0; i < spec->multi_ios; i++) {
                hda_nid_t pin = spec->multi_io[i].pin;
                struct nid_path *path;
                path = get_multiio_path(codec, i);
                if (!path)
                        continue;
                if (!spec->multi_io[i].ctl_in)
                        spec->multi_io[i].ctl_in =
                                snd_hda_codec_get_pin_target(codec, pin);
                snd_hda_activate_path(codec, path, path->active,
                                      aamix_default(spec));
        }
}

static void init_aamix_paths(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;

        if (!spec->have_aamix_ctl)
                return;
        if (!has_aamix_out_paths(spec))
                return;
        update_aamix_paths(codec, spec->aamix_mode, spec->out_paths[0],
                           spec->aamix_out_paths[0],
                           spec->autocfg.line_out_type);
        update_aamix_paths(codec, spec->aamix_mode, spec->hp_paths[0],
                           spec->aamix_out_paths[1],
                           AUTO_PIN_HP_OUT);
        update_aamix_paths(codec, spec->aamix_mode, spec->speaker_paths[0],
                           spec->aamix_out_paths[2],
                           AUTO_PIN_SPEAKER_OUT);
}

/* set up input pins and loopback paths */
static void init_analog_input(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct auto_pin_cfg *cfg = &spec->autocfg;
        int i;

        for (i = 0; i < cfg->num_inputs; i++) {
                hda_nid_t nid = cfg->inputs[i].pin;
                if (is_input_pin(codec, nid))
                        restore_pin_ctl(codec, nid);

                /* init loopback inputs */
                if (spec->mixer_nid) {
                        resume_path_from_idx(codec, spec->loopback_paths[i]);
                        resume_path_from_idx(codec, spec->loopback_merge_path);
                }
        }
}

/* initialize ADC paths */
static void init_input_src(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        struct hda_input_mux *imux = &spec->input_mux;
        struct nid_path *path;
        int i, c, nums;

        if (spec->dyn_adc_switch)
                nums = 1;
        else
                nums = spec->num_adc_nids;

        for (c = 0; c < nums; c++) {
                for (i = 0; i < imux->num_items; i++) {
                        path = get_input_path(codec, c, i);
                        if (path) {
                                bool active = path->active;
                                if (i == spec->cur_mux[c])
                                        active = true;
                                snd_hda_activate_path(codec, path, active, false);
                        }
                }
                if (spec->hp_mic)
                        update_hp_mic(codec, c, true);
        }

        if (spec->cap_sync_hook)
                spec->cap_sync_hook(codec, NULL, NULL);
}

/* set right pin controls for digital I/O */
static void init_digital(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;
        int i;
        hda_nid_t pin;

        for (i = 0; i < spec->autocfg.dig_outs; i++)
                set_output_and_unmute(codec, spec->digout_paths[i]);
        pin = spec->autocfg.dig_in_pin;
        if (pin) {
                restore_pin_ctl(codec, pin);
                resume_path_from_idx(codec, spec->digin_path);
        }
}

/* clear unsol-event tags on unused pins; Conexant codecs seem to leave
 * invalid unsol tags by some reason
 */
static void clear_unsol_on_unused_pins(struct hda_codec *codec)
{
        const struct hda_pincfg *pin;
        int i;

        snd_array_for_each(&codec->init_pins, i, pin) {
                hda_nid_t nid = pin->nid;
                if (is_jack_detectable(codec, nid) &&
                    !snd_hda_jack_tbl_get(codec, nid))
                        snd_hda_codec_write_cache(codec, nid, 0,
                                        AC_VERB_SET_UNSOLICITED_ENABLE, 0);
        }
}

/**
 * snd_hda_gen_init - initialize the generic spec
 * @codec: the HDA codec
 *
 * This can be put as patch_ops init function.
 */
int snd_hda_gen_init(struct hda_codec *codec)
{
        struct hda_gen_spec *spec = codec->spec;

        if (spec->init_hook)
                spec->init_hook(codec);

        if (!spec->skip_verbs)
                snd_hda_apply_verbs(codec);

        init_multi_out(codec);
        init_extra_out(codec);
        init_multi_io(codec);
        init_aamix_paths(codec);
        init_analog_input(codec);
        init_input_src(codec);
        init_digital(codec);

        clear_unsol_on_unused_pins(codec);

        sync_all_pin_power_ctls(codec);

        /* call init functions of standard auto-mute helpers */
        update_automute_all(codec);

        snd_hda_regmap_sync(codec);

        if (spec->vmaster_mute.sw_kctl && spec->vmaster_mute.hook)
                snd_hda_sync_vmaster_hook(&spec->vmaster_mute);

        hda_call_check_power_status(codec, 0x01);
        return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_init);

/**
 * snd_hda_gen_free - free the generic spec
 * @codec: the HDA codec
 *
 * This can be put as patch_ops free function.
 */
void snd_hda_gen_free(struct hda_codec *codec)
{
        snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_FREE);
        snd_hda_gen_spec_free(codec->spec);
        kfree(codec->spec);
        codec->spec = NULL;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_free);

/**
 * snd_hda_gen_check_power_status - check the loopback power save state
 * @codec: the HDA codec
 * @nid: NID to inspect
 *
 * This can be put as patch_ops check_power_status function.
 */
int snd_hda_gen_check_power_status(struct hda_codec *codec, hda_nid_t nid)
{
        struct hda_gen_spec *spec = codec->spec;
        return snd_hda_check_amp_list_power(codec, &spec->loopback, nid);
}
EXPORT_SYMBOL_GPL(snd_hda_gen_check_power_status);


/*
 * the generic codec support
 */

static const struct hda_codec_ops generic_patch_ops = {
        .build_controls = snd_hda_gen_build_controls,
        .build_pcms = snd_hda_gen_build_pcms,
        .init = snd_hda_gen_init,
        .free = snd_hda_gen_free,
        .unsol_event = snd_hda_jack_unsol_event,
        .check_power_status = snd_hda_gen_check_power_status,
};

/*
 * snd_hda_parse_generic_codec - Generic codec parser
 * @codec: the HDA codec
 */
static int snd_hda_parse_generic_codec(struct hda_codec *codec)
{
        struct hda_gen_spec *spec;
        int err;

        spec = kzalloc(sizeof(*spec), GFP_KERNEL);
        if (!spec)
                return -ENOMEM;
        snd_hda_gen_spec_init(spec);
        codec->spec = spec;

        err = snd_hda_parse_pin_defcfg(codec, &spec->autocfg, NULL, 0);
        if (err < 0)
                goto error;

        err = snd_hda_gen_parse_auto_config(codec, &spec->autocfg);
        if (err < 0)
                goto error;

        codec->patch_ops = generic_patch_ops;
        return 0;

error:
        snd_hda_gen_free(codec);
        return err;
}

static const struct hda_device_id snd_hda_id_generic[] = {
        HDA_CODEC_ENTRY(HDA_CODEC_ID_GENERIC, "Generic", snd_hda_parse_generic_codec),
        {0} /* terminator */
};
MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_generic);

static struct hda_codec_driver generic_driver = {
        .id = snd_hda_id_generic,
};

module_hda_codec_driver(generic_driver);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Generic HD-audio codec parser");