source: GPL/alsa-kernel/include/sound/pmac.h@ 18

Last change on this file since 18 was 18, checked in by vladest, 20 years ago

initial import
File size: 4.7 KB
Line 
1/*
2 * Driver for PowerMac onboard soundchips
3 * Copyright (c) 2001 by Takashi Iwai <tiwai@suse.de>
4 * based on dmasound.c.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21
22#ifndef __PMAC_H
23#define __PMAC_H
24
25#include "control.h"
26#include "pcm.h"
27#include "awacs.h"
28
29#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)
30#include <asm/adb.h>
31#include <asm/cuda.h>
32#include <asm/pmu.h>
33#else /* 2.4.0 kernel */
34#include <linux/adb.h>
35#ifdef CONFIG_ADB_CUDA
36#include <linux/cuda.h>
37#endif
38#ifdef CONFIG_ADB_PMU
39#include <linux/pmu.h>
40#endif
41#endif
42#include <linux/nvram.h>
43#include <linux/vt_kern.h>
44#include <asm/dbdma.h>
45#include <asm/prom.h>
46#include <asm/machdep.h>
47#include <asm/feature.h>
48
49#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)
50#define pmu_suspend() /**/
51#define pmu_resume() /**/
52#endif
53
54#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0) || defined(CONFIG_ADB_CUDA)
55#define PMAC_AMP_AVAIL
56#endif
57
58/* maximum number of fragments */
59#define PMAC_MAX_FRAGS 32
60
61
62/*
63 * typedefs
64 */
65typedef struct snd_pmac pmac_t;
66typedef struct snd_pmac_stream pmac_stream_t;
67typedef struct snd_pmac_beep pmac_beep_t;
68typedef struct snd_pmac_dbdma pmac_dbdma_t;
69
70
71/*
72 * DBDMA space
73 */
74struct snd_pmac_dbdma {
75 unsigned long addr;
76 struct dbdma_cmd *cmds;
77 void *space;
78 int size;
79};
80
81/*
82 * playback/capture stream
83 */
84struct snd_pmac_stream {
85 int running; /* boolean */
86
87 int stream; /* PLAYBACK/CAPTURE */
88
89 int dma_size; /* in bytes */
90 int period_size; /* in bytes */
91 int buffer_size; /* in kbytes */
92 int nperiods, cur_period;
93
94 pmac_dbdma_t cmd;
95 volatile struct dbdma_regs *dma;
96
97 snd_pcm_substream_t *substream;
98
99 unsigned int cur_freqs; /* currently available frequences */
100 unsigned int cur_formats; /* currently available formats */
101};
102
103
104/*
105 * beep using pcm
106 */
107struct snd_pmac_beep {
108 int running; /* boolean */
109 int volume; /* mixer volume: 0-100 */
110 int volume_play; /* currently playing volume */
111 int hz;
112 int nsamples;
113 short *buf; /* allocated wave buffer */
114 unsigned long addr; /* physical address of buffer */
115 struct timer_list timer; /* timer list for stopping beep */
116 void (*orig_mksound)(unsigned int, unsigned int);
117 /* pointer to restore */
118 snd_kcontrol_t *control; /* mixer element */
119};
120
121
122/*
123 */
124struct snd_pmac {
125 snd_card_t *card;
126
127 /* h/w info */
128 struct device_node *node;
129 unsigned int revision;
130 unsigned int subframe;
131 unsigned int device_id;
132 unsigned int has_iic : 1;
133
134 unsigned int is_burgundy : 1;
135 unsigned int is_daca : 1;
136 unsigned int is_pbook_3400 : 1;
137 unsigned int is_pbook_G3 : 1;
138 unsigned int is_screamer : 1;
139
140 unsigned int can_byte_swap : 1;
141 unsigned int can_duplex : 1;
142 unsigned int can_capture : 1;
143
144#ifdef PMAC_AMP_AVAIL
145 unsigned int amp_only;
146 int amp_vol[2];
147#endif
148
149 unsigned int initialized : 1;
150 unsigned int feature_is_set : 1;
151
152 unsigned int freqs_ok; /* bit flags */
153 unsigned int formats_ok; /* pcm hwinfo */
154 int active;
155 int rate_index;
156 int format; /* current format */
157
158 spinlock_t reg_lock;
159 volatile struct awacs_regs *awacs;
160 int awacs_reg[8]; /* register cache */
161
162 unsigned char *latch_base;
163 unsigned char *macio_base;
164
165 pmac_stream_t playback;
166 pmac_stream_t capture;
167
168 pmac_dbdma_t extra_dma;
169
170 int irq, tx_irq, rx_irq;
171
172 snd_pcm_t *pcm;
173
174 pmac_beep_t *beep;
175
176 unsigned int control_mask; /* control mask */
177
178 /* lowlevel callbacks */
179 void (*set_format)(pmac_t *chip);
180 void (*port_change)(pmac_t *chip);
181#ifdef CONFIG_PMAC_PBOOK
182 unsigned int sleep_registered : 1;
183 void (*suspend)(pmac_t *chip);
184 void (*resume)(pmac_t *chip);
185#endif
186
187};
188
189
190/* exported functions */
191int snd_pmac_new(snd_card_t *card, pmac_t **chip_return);
192int snd_pmac_pcm_new(pmac_t *chip);
193int snd_pmac_attach_beep(pmac_t *chip);
194#ifdef CONFIG_PMAC_PBOOK
195int snd_pmac_register_sleep_notifier(pmac_t *chip);
196int snd_pmac_unregister_sleep_notifier(pmac_t *chip);
197#endif
198
199/* initialize mixer */
200int snd_pmac_awacs_init(pmac_t *chip);
201int snd_pmac_burgundy_init(pmac_t *chip);
202
203#endif /* __PMAC_H */
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