source: GPL/trunk/alsa-kernel/pci/bt87x.c@ 689

Last change on this file since 689 was 679, checked in by David Azarewicz, 5 years ago

Merge changes from Paul's uniaud32next branch.
File size: 29.7 KB
Line 
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA
4 *
5 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
6 *
7 * based on btaudio.c by Gerd Knorr <kraxel@bytesex.org>
8 */
9
10#ifdef TARGET_OS2
11#define KBUILD_MODNAME "bt87x"
12#endif
13
14#include <linux/init.h>
15#include <linux/interrupt.h>
16#include <linux/pci.h>
17#include <linux/slab.h>
18#include <linux/module.h>
19#include <linux/bitops.h>
20#include <linux/io.h>
21#include <sound/core.h>
22#include <sound/pcm.h>
23#include <sound/pcm_params.h>
24#include <sound/control.h>
25#include <sound/initval.h>
26
27MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
28MODULE_DESCRIPTION("Brooktree Bt87x audio driver");
29MODULE_LICENSE("GPL");
30MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878},"
31 "{Brooktree,Bt879}}");
32
33#ifndef TARGET_OS2
34static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
35static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
36#else
37static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
38static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
39#endif
40static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
41static int digital_rate[SNDRV_CARDS]; /* digital input rate */
42static bool load_all; /* allow to load cards not the allowlist */
43
44module_param_array(index, int, NULL, 0444);
45MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
46module_param_array(id, charp, NULL, 0444);
47MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
48module_param_array(enable, bool, NULL, 0444);
49MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
50module_param_array(digital_rate, int, NULL, 0444);
51MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
52module_param(load_all, bool, 0444);
53MODULE_PARM_DESC(load_all, "Allow to load cards not on the allowlist");
54
55
56/* register offsets */
57#define REG_INT_STAT 0x100 /* interrupt status */
58#define REG_INT_MASK 0x104 /* interrupt mask */
59#define REG_GPIO_DMA_CTL 0x10c /* audio control */
60#define REG_PACKET_LEN 0x110 /* audio packet lengths */
61#define REG_RISC_STRT_ADD 0x114 /* RISC program start address */
62#define REG_RISC_COUNT 0x120 /* RISC program counter */
63
64/* interrupt bits */
65#define INT_OFLOW (1 << 3) /* audio A/D overflow */
66#define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */
67#define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */
68#define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */
69#define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */
70#define INT_PPERR (1 << 15) /* PCI parity error */
71#define INT_RIPERR (1 << 16) /* RISC instruction parity error */
72#define INT_PABORT (1 << 17) /* PCI master or target abort */
73#define INT_OCERR (1 << 18) /* invalid opcode */
74#define INT_SCERR (1 << 19) /* sync counter overflow */
75#define INT_RISC_EN (1 << 27) /* DMA controller running */
76#define INT_RISCS_SHIFT 28 /* RISC status bits */
77
78/* audio control bits */
79#define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */
80#define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */
81#define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */
82#define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */
83#define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */
84#define CTL_ACAP_EN (1 << 4) /* enable audio capture */
85#define CTL_DA_APP (1 << 5) /* GPIO input */
86#define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */
87#define CTL_DA_IOM_DA (1 << 6) /* digital audio input */
88#define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */
89#define CTL_DA_SDR_MASK (0xf<< 8)
90#define CTL_DA_LMT (1 << 12) /* limit audio data values */
91#define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */
92#define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */
93#define CTL_DA_DPM (1 << 15) /* data packet mode */
94#define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */
95#define CTL_DA_MLB (1 << 21) /* MSB/LSB format */
96#define CTL_DA_LRI (1 << 22) /* left/right indication */
97#define CTL_DA_SCE (1 << 23) /* sample clock edge */
98#define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */
99#define CTL_A_SEL_SFM (1 << 24) /* FM audio input */
100#define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */
101#define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */
102#define CTL_A_SEL_SHIFT 24
103#define CTL_A_SEL_MASK (3 << 24)
104#define CTL_A_PWRDN (1 << 26) /* analog audio power-down */
105#define CTL_A_G2X (1 << 27) /* audio gain boost */
106#define CTL_A_GAIN_SHIFT 28 /* audio input gain */
107#define CTL_A_GAIN_MASK (0xf<<28)
108
109/* RISC instruction opcodes */
110#define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */
111#define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */
112#define RISC_SKIP (0x2 << 28) /* skip FIFO data */
113#define RISC_JUMP (0x7 << 28) /* jump to address */
114#define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */
115
116/* RISC instruction bits */
117#define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */
118#define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */
119#define RISC_SET_STATUS_SHIFT 16 /* set status bits */
120#define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */
121#define RISC_IRQ ( 1 << 24) /* interrupt */
122#define RISC_EOL ( 1 << 26) /* end of line */
123#define RISC_SOL ( 1 << 27) /* start of line */
124
125/* SYNC status bits values */
126#define RISC_SYNC_FM1 0x6
127#define RISC_SYNC_VRO 0xc
128
129#define ANALOG_CLOCK 1792000
130#ifdef CONFIG_SND_BT87X_OVERCLOCK
131#define CLOCK_DIV_MIN 1
132#else
133#define CLOCK_DIV_MIN 4
134#endif
135#define CLOCK_DIV_MAX 15
136
137#define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \
138 INT_RIPERR | INT_PABORT | INT_OCERR)
139#define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS)
140
141/* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */
142#define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8)
143
144/* Cards with configuration information */
145enum snd_bt87x_boardid {
146 SND_BT87X_BOARD_UNKNOWN,
147 SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */
148 SND_BT87X_BOARD_ANALOG, /* board with no external A/D */
149 SND_BT87X_BOARD_OSPREY2x0,
150 SND_BT87X_BOARD_OSPREY440,
151 SND_BT87X_BOARD_AVPHONE98,
152};
153
154/* Card configuration */
155struct snd_bt87x_board {
156 int dig_rate; /* Digital input sampling rate */
157 u32 digital_fmt; /* Register settings for digital input */
158 unsigned no_analog:1; /* No analog input */
159 unsigned no_digital:1; /* No digital input */
160};
161
162static const struct snd_bt87x_board snd_bt87x_boards[] = {
163 [SND_BT87X_BOARD_UNKNOWN] = {
164 .dig_rate = 32000, /* just a guess */
165 },
166 [SND_BT87X_BOARD_GENERIC] = {
167 .dig_rate = 32000,
168 },
169 [SND_BT87X_BOARD_ANALOG] = {
170 .no_digital = 1,
171 },
172 [SND_BT87X_BOARD_OSPREY2x0] = {
173 .dig_rate = 44100,
174 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
175 },
176 [SND_BT87X_BOARD_OSPREY440] = {
177 .dig_rate = 32000,
178 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
179 .no_analog = 1,
180 },
181 [SND_BT87X_BOARD_AVPHONE98] = {
182 .dig_rate = 48000,
183 },
184};
185
186struct snd_bt87x {
187 struct snd_card *card;
188 struct pci_dev *pci;
189 struct snd_bt87x_board board;
190
191 void __iomem *mmio;
192 int irq;
193
194 spinlock_t reg_lock;
195 unsigned long opened;
196 struct snd_pcm_substream *substream;
197
198 struct snd_dma_buffer dma_risc;
199 unsigned int line_bytes;
200 unsigned int lines;
201
202 u32 reg_control;
203 u32 interrupt_mask;
204
205 int current_line;
206
207 int pci_parity_errors;
208};
209
210enum { DEVICE_DIGITAL, DEVICE_ANALOG };
211
212static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg)
213{
214 return readl(chip->mmio + reg);
215}
216
217static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)
218{
219 writel(value, chip->mmio + reg);
220}
221
222static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream,
223 unsigned int periods, unsigned int period_bytes)
224{
225 unsigned int i, offset;
226 __le32 *risc;
227
228 if (chip->dma_risc.area == NULL) {
229 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
230 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0)
231 return -ENOMEM;
232 }
233 risc = (__le32 *)chip->dma_risc.area;
234 offset = 0;
235 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1);
236 *risc++ = cpu_to_le32(0);
237 for (i = 0; i < periods; ++i) {
238 u32 rest;
239
240 rest = period_bytes;
241 do {
242 u32 cmd, len;
243 unsigned int addr;
244
245 len = PAGE_SIZE - (offset % PAGE_SIZE);
246 if (len > rest)
247 len = rest;
248 cmd = RISC_WRITE | len;
249 if (rest == period_bytes) {
250 u32 block = i * 16 / periods;
251 cmd |= RISC_SOL;
252 cmd |= block << RISC_SET_STATUS_SHIFT;
253 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT;
254 }
255 if (len == rest)
256 cmd |= RISC_EOL | RISC_IRQ;
257 *risc++ = cpu_to_le32(cmd);
258 addr = snd_pcm_sgbuf_get_addr(substream, offset);
259 *risc++ = cpu_to_le32(addr);
260 offset += len;
261 rest -= len;
262 } while (rest > 0);
263 }
264 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO);
265 *risc++ = cpu_to_le32(0);
266 *risc++ = cpu_to_le32(RISC_JUMP);
267 *risc++ = cpu_to_le32(chip->dma_risc.addr);
268 chip->line_bytes = period_bytes;
269 chip->lines = periods;
270 return 0;
271}
272
273static void snd_bt87x_free_risc(struct snd_bt87x *chip)
274{
275 if (chip->dma_risc.area) {
276 snd_dma_free_pages(&chip->dma_risc);
277 chip->dma_risc.area = NULL;
278 }
279}
280
281static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status)
282{
283 int pci_status = pci_status_get_and_clear_errors(chip->pci);
284
285 if (pci_status != PCI_STATUS_DETECTED_PARITY)
286 dev_err(chip->card->dev,
287 "Aieee - PCI error! status %#08x, PCI status %#04x\n",
288 status & ERROR_INTERRUPTS, pci_status);
289 else {
290 dev_err(chip->card->dev,
291 "Aieee - PCI parity error detected!\n");
292 /* error 'handling' similar to aic7xxx_pci.c: */
293 chip->pci_parity_errors++;
294 if (chip->pci_parity_errors > 20) {
295 dev_err(chip->card->dev,
296 "Too many PCI parity errors observed.\n");
297 dev_err(chip->card->dev,
298 "Some device on this bus is generating bad parity.\n");
299 dev_err(chip->card->dev,
300 "This is an error *observed by*, not *generated by*, this card.\n");
301 dev_err(chip->card->dev,
302 "PCI parity error checking has been disabled.\n");
303 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);
304 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
305 }
306 }
307}
308
309static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
310{
311 struct snd_bt87x *chip = dev_id;
312 unsigned int status, irq_status;
313
314 status = snd_bt87x_readl(chip, REG_INT_STAT);
315 irq_status = status & chip->interrupt_mask;
316 if (!irq_status)
317 return IRQ_NONE;
318 snd_bt87x_writel(chip, REG_INT_STAT, irq_status);
319
320 if (irq_status & ERROR_INTERRUPTS) {
321 if (irq_status & (INT_FBUS | INT_FTRGT))
322 dev_warn(chip->card->dev,
323 "FIFO overrun, status %#08x\n", status);
324 if (irq_status & INT_OCERR)
325 dev_err(chip->card->dev,
326 "internal RISC error, status %#08x\n", status);
327 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT))
328 snd_bt87x_pci_error(chip, irq_status);
329 }
330 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {
331 int current_block, irq_block;
332
333 /* assume that exactly one line has been recorded */
334 chip->current_line = (chip->current_line + 1) % chip->lines;
335 /* but check if some interrupts have been skipped */
336 current_block = chip->current_line * 16 / chip->lines;
337 irq_block = status >> INT_RISCS_SHIFT;
338 if (current_block != irq_block)
339 chip->current_line = (irq_block * chip->lines + 15) / 16;
340
341 snd_pcm_period_elapsed(chip->substream);
342 }
343 return IRQ_HANDLED;
344}
345
346static const struct snd_pcm_hardware snd_bt87x_digital_hw = {
347 .info = SNDRV_PCM_INFO_MMAP |
348 SNDRV_PCM_INFO_INTERLEAVED |
349 SNDRV_PCM_INFO_BLOCK_TRANSFER |
350 SNDRV_PCM_INFO_MMAP_VALID |
351 SNDRV_PCM_INFO_BATCH,
352 .formats = SNDRV_PCM_FMTBIT_S16_LE,
353 .rates = 0, /* set at runtime */
354 .channels_min = 2,
355 .channels_max = 2,
356 .buffer_bytes_max = 255 * 4092,
357 .period_bytes_min = 32,
358 .period_bytes_max = 4092,
359 .periods_min = 2,
360 .periods_max = 255,
361};
362
363static const struct snd_pcm_hardware snd_bt87x_analog_hw = {
364 .info = SNDRV_PCM_INFO_MMAP |
365 SNDRV_PCM_INFO_INTERLEAVED |
366 SNDRV_PCM_INFO_BLOCK_TRANSFER |
367 SNDRV_PCM_INFO_MMAP_VALID |
368 SNDRV_PCM_INFO_BATCH,
369 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
370 .rates = SNDRV_PCM_RATE_KNOT,
371 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,
372 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN,
373 .channels_min = 1,
374 .channels_max = 1,
375 .buffer_bytes_max = 255 * 4092,
376 .period_bytes_min = 32,
377 .period_bytes_max = 4092,
378 .periods_min = 2,
379 .periods_max = 255,
380};
381
382static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
383{
384 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN;
385 runtime->hw = snd_bt87x_digital_hw;
386 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);
387 runtime->hw.rate_min = chip->board.dig_rate;
388 runtime->hw.rate_max = chip->board.dig_rate;
389 return 0;
390}
391
392static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
393{
394 static const struct snd_ratnum analog_clock = {
395 .num = ANALOG_CLOCK,
396 .den_min = CLOCK_DIV_MIN,
397 .den_max = CLOCK_DIV_MAX,
398 .den_step = 1
399 };
400 static const struct snd_pcm_hw_constraint_ratnums constraint_rates = {
401 .nrats = 1,
402 .rats = &analog_clock
403 };
404
405 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN);
406 runtime->hw = snd_bt87x_analog_hw;
407 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
408 &constraint_rates);
409}
410
411static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream)
412{
413 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
414 struct snd_pcm_runtime *runtime = substream->runtime;
415 int err;
416
417 if (test_and_set_bit(0, &chip->opened))
418 return -EBUSY;
419
420 if (substream->pcm->device == DEVICE_DIGITAL)
421 err = snd_bt87x_set_digital_hw(chip, runtime);
422 else
423 err = snd_bt87x_set_analog_hw(chip, runtime);
424 if (err < 0)
425 goto _error;
426
427 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
428 if (err < 0)
429 goto _error;
430
431 chip->substream = substream;
432 return 0;
433
434_error:
435 clear_bit(0, &chip->opened);
436 smp_mb__after_atomic();
437 return err;
438}
439
440static int snd_bt87x_close(struct snd_pcm_substream *substream)
441{
442 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
443
444 spin_lock_irq(&chip->reg_lock);
445 chip->reg_control |= CTL_A_PWRDN;
446 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
447 spin_unlock_irq(&chip->reg_lock);
448
449 chip->substream = NULL;
450 clear_bit(0, &chip->opened);
451 smp_mb__after_atomic();
452 return 0;
453}
454
455static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,
456 struct snd_pcm_hw_params *hw_params)
457{
458 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
459
460 return snd_bt87x_create_risc(chip, substream,
461 params_periods(hw_params),
462 params_period_bytes(hw_params));
463}
464
465static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)
466{
467 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
468
469 snd_bt87x_free_risc(chip);
470 return 0;
471}
472
473static int snd_bt87x_prepare(struct snd_pcm_substream *substream)
474{
475 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
476 struct snd_pcm_runtime *runtime = substream->runtime;
477 int decimation;
478
479 spin_lock_irq(&chip->reg_lock);
480 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);
481 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;
482 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;
483 if (runtime->format == SNDRV_PCM_FORMAT_S8)
484 chip->reg_control |= CTL_DA_SBR;
485 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
486 spin_unlock_irq(&chip->reg_lock);
487 return 0;
488}
489
490static int snd_bt87x_start(struct snd_bt87x *chip)
491{
492 spin_lock(&chip->reg_lock);
493 chip->current_line = 0;
494 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;
495 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);
496 snd_bt87x_writel(chip, REG_PACKET_LEN,
497 chip->line_bytes | (chip->lines << 16));
498 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
499 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
500 spin_unlock(&chip->reg_lock);
501 return 0;
502}
503
504static int snd_bt87x_stop(struct snd_bt87x *chip)
505{
506 spin_lock(&chip->reg_lock);
507 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);
508 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
509 snd_bt87x_writel(chip, REG_INT_MASK, 0);
510 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
511 spin_unlock(&chip->reg_lock);
512 return 0;
513}
514
515static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd)
516{
517 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
518
519 switch (cmd) {
520 case SNDRV_PCM_TRIGGER_START:
521 return snd_bt87x_start(chip);
522 case SNDRV_PCM_TRIGGER_STOP:
523 return snd_bt87x_stop(chip);
524 default:
525 return -EINVAL;
526 }
527}
528
529static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)
530{
531 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
532 struct snd_pcm_runtime *runtime = substream->runtime;
533
534 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);
535}
536
537static const struct snd_pcm_ops snd_bt87x_pcm_ops = {
538 .open = snd_bt87x_pcm_open,
539 .close = snd_bt87x_close,
540 .hw_params = snd_bt87x_hw_params,
541 .hw_free = snd_bt87x_hw_free,
542 .prepare = snd_bt87x_prepare,
543 .trigger = snd_bt87x_trigger,
544 .pointer = snd_bt87x_pointer,
545};
546
547static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol,
548 struct snd_ctl_elem_info *info)
549{
550 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
551 info->count = 1;
552 info->value.integer.min = 0;
553 info->value.integer.max = 15;
554 return 0;
555}
556
557static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol,
558 struct snd_ctl_elem_value *value)
559{
560 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
561
562 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;
563 return 0;
564}
565
566static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol,
567 struct snd_ctl_elem_value *value)
568{
569 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
570 u32 old_control;
571 int changed;
572
573 spin_lock_irq(&chip->reg_lock);
574 old_control = chip->reg_control;
575 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)
576 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);
577 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
578 changed = old_control != chip->reg_control;
579 spin_unlock_irq(&chip->reg_lock);
580 return changed;
581}
582
583static const struct snd_kcontrol_new snd_bt87x_capture_volume = {
584 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
585 .name = "Capture Volume",
586 .info = snd_bt87x_capture_volume_info,
587 .get = snd_bt87x_capture_volume_get,
588 .put = snd_bt87x_capture_volume_put,
589};
590
591#define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info
592
593static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol,
594 struct snd_ctl_elem_value *value)
595{
596 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
597
598 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);
599 return 0;
600}
601
602static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol,
603 struct snd_ctl_elem_value *value)
604{
605 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
606 u32 old_control;
607 int changed;
608
609 spin_lock_irq(&chip->reg_lock);
610 old_control = chip->reg_control;
611 chip->reg_control = (chip->reg_control & ~CTL_A_G2X)
612 | (value->value.integer.value[0] ? CTL_A_G2X : 0);
613 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
614 changed = chip->reg_control != old_control;
615 spin_unlock_irq(&chip->reg_lock);
616 return changed;
617}
618
619static const struct snd_kcontrol_new snd_bt87x_capture_boost = {
620 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
621 .name = "Capture Boost",
622 .info = snd_bt87x_capture_boost_info,
623 .get = snd_bt87x_capture_boost_get,
624 .put = snd_bt87x_capture_boost_put,
625};
626
627static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol,
628 struct snd_ctl_elem_info *info)
629{
630 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"};
631
632 return snd_ctl_enum_info(info, 1, 3, texts);
633}
634
635static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol,
636 struct snd_ctl_elem_value *value)
637{
638 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
639
640 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;
641 return 0;
642}
643
644static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol,
645 struct snd_ctl_elem_value *value)
646{
647 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
648 u32 old_control;
649 int changed;
650
651 spin_lock_irq(&chip->reg_lock);
652 old_control = chip->reg_control;
653 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)
654 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);
655 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
656 changed = chip->reg_control != old_control;
657 spin_unlock_irq(&chip->reg_lock);
658 return changed;
659}
660
661static const struct snd_kcontrol_new snd_bt87x_capture_source = {
662 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
663 .name = "Capture Source",
664 .info = snd_bt87x_capture_source_info,
665 .get = snd_bt87x_capture_source_get,
666 .put = snd_bt87x_capture_source_put,
667};
668
669static int snd_bt87x_free(struct snd_bt87x *chip)
670{
671 if (chip->mmio)
672 snd_bt87x_stop(chip);
673 if (chip->irq >= 0)
674 free_irq(chip->irq, chip);
675 iounmap(chip->mmio);
676 pci_release_regions(chip->pci);
677 pci_disable_device(chip->pci);
678 kfree(chip);
679 return 0;
680}
681
682static int snd_bt87x_dev_free(struct snd_device *device)
683{
684 struct snd_bt87x *chip = device->device_data;
685 return snd_bt87x_free(chip);
686}
687
688static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
689{
690 int err;
691 struct snd_pcm *pcm;
692
693 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
694 if (err < 0)
695 return err;
696 pcm->private_data = chip;
697 strcpy(pcm->name, name);
698 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
699 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
700 &chip->pci->dev,
701 128 * 1024,
702 ALIGN(255 * 4092, 1024));
703 return 0;
704}
705
706static int snd_bt87x_create(struct snd_card *card,
707 struct pci_dev *pci,
708 struct snd_bt87x **rchip)
709{
710 struct snd_bt87x *chip;
711 int err;
712 static const struct snd_device_ops ops = {
713 .dev_free = snd_bt87x_dev_free
714 };
715
716 *rchip = NULL;
717
718 err = pci_enable_device(pci);
719 if (err < 0)
720 return err;
721
722 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
723 if (!chip) {
724 pci_disable_device(pci);
725 return -ENOMEM;
726 }
727 chip->card = card;
728 chip->pci = pci;
729 chip->irq = -1;
730 spin_lock_init(&chip->reg_lock);
731
732 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) {
733 kfree(chip);
734 pci_disable_device(pci);
735 return err;
736 }
737 chip->mmio = pci_ioremap_bar(pci, 0);
738 if (!chip->mmio) {
739 dev_err(card->dev, "cannot remap io memory\n");
740 err = -ENOMEM;
741 goto fail;
742 }
743
744 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |
745 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
746 chip->interrupt_mask = MY_INTERRUPTS;
747 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
748 snd_bt87x_writel(chip, REG_INT_MASK, 0);
749 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
750
751 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED,
752 KBUILD_MODNAME, chip);
753 if (err < 0) {
754 dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
755 goto fail;
756 }
757 chip->irq = pci->irq;
758 card->sync_irq = chip->irq;
759 pci_set_master(pci);
760
761 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
762 if (err < 0)
763 goto fail;
764
765 *rchip = chip;
766 return 0;
767
768fail:
769 snd_bt87x_free(chip);
770 return err;
771}
772
773#define BT_DEVICE(chip, subvend, subdev, id) \
774 { .vendor = PCI_VENDOR_ID_BROOKTREE, \
775 .device = chip, \
776 .subvendor = subvend, .subdevice = subdev, \
777 .driver_data = SND_BT87X_BOARD_ ## id }
778/* driver_data is the card id for that device */
779
780static const struct pci_device_id snd_bt87x_ids[] = {
781 /* Hauppauge WinTV series */
782 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),
783 /* Hauppauge WinTV series */
784 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),
785 /* Viewcast Osprey 200 */
786 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),
787 /* Viewcast Osprey 440 (rate is configurable via gpio) */
788 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),
789 /* ATI TV-Wonder */
790 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),
791 /* Leadtek Winfast tv 2000xp delux */
792 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),
793 /* Pinnacle PCTV */
794 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC),
795 /* Voodoo TV 200 */
796 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),
797 /* Askey Computer Corp. MagicTView'99 */
798 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC),
799 /* AVerMedia Studio No. 103, 203, ...? */
800 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),
801 /* Prolink PixelView PV-M4900 */
802 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),
803 /* Pinnacle Studio PCTV rave */
804 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),
805 {0}
806};
807MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
808
809/* cards known not to have audio
810 * (DVB cards use the audio function to transfer MPEG data) */
811static struct {
812 unsigned short subvendor, subdevice;
813} denylist[] = {
814 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */
815 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */
816 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */
817 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
818 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */
819 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
820 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */
821 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
822 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
823 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
824 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
825};
826
827static struct pci_driver driver;
828
829/* return the id of the card, or a negative value if it's on the denylist */
830static int snd_bt87x_detect_card(struct pci_dev *pci)
831{
832 int i;
833 const struct pci_device_id *supported;
834
835 supported = pci_match_id(snd_bt87x_ids, pci);
836 if (supported && supported->driver_data > 0)
837 return supported->driver_data;
838
839 for (i = 0; i < ARRAY_SIZE(denylist); ++i)
840 if (denylist[i].subvendor == pci->subsystem_vendor &&
841 denylist[i].subdevice == pci->subsystem_device) {
842 dev_dbg(&pci->dev,
843 "card %#04x-%#04x:%#04x has no audio\n",
844 pci->device, pci->subsystem_vendor, pci->subsystem_device);
845 return -EBUSY;
846 }
847
848 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n",
849 pci->device, pci->subsystem_vendor, pci->subsystem_device);
850 dev_info(&pci->dev, "please mail id, board name, and, "
851 "if it works, the correct digital_rate option to "
852 "<alsa-devel@alsa-project.org>\n");
853 return SND_BT87X_BOARD_UNKNOWN;
854}
855
856static int snd_bt87x_probe(struct pci_dev *pci,
857 const struct pci_device_id *pci_id)
858{
859 static int dev;
860 struct snd_card *card;
861 struct snd_bt87x *chip;
862 int err;
863 enum snd_bt87x_boardid boardid;
864
865 if (!pci_id->driver_data) {
866 err = snd_bt87x_detect_card(pci);
867 if (err < 0)
868 return -ENODEV;
869 boardid = err;
870 } else
871 boardid = pci_id->driver_data;
872
873 if (dev >= SNDRV_CARDS)
874 return -ENODEV;
875 if (!enable[dev]) {
876 ++dev;
877 return -ENOENT;
878 }
879
880 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
881 0, &card);
882 if (err < 0)
883 return err;
884
885 err = snd_bt87x_create(card, pci, &chip);
886 if (err < 0)
887 goto _error;
888
889 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
890
891 if (!chip->board.no_digital) {
892 if (digital_rate[dev] > 0)
893 chip->board.dig_rate = digital_rate[dev];
894
895 chip->reg_control |= chip->board.digital_fmt;
896
897 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
898 if (err < 0)
899 goto _error;
900 }
901 if (!chip->board.no_analog) {
902 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
903 if (err < 0)
904 goto _error;
905 err = snd_ctl_add(card, snd_ctl_new1(
906 &snd_bt87x_capture_volume, chip));
907 if (err < 0)
908 goto _error;
909 err = snd_ctl_add(card, snd_ctl_new1(
910 &snd_bt87x_capture_boost, chip));
911 if (err < 0)
912 goto _error;
913 err = snd_ctl_add(card, snd_ctl_new1(
914 &snd_bt87x_capture_source, chip));
915 if (err < 0)
916 goto _error;
917 }
918 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital "
919 "(rate %d Hz)\n", dev, boardid,
920 chip->board.no_analog ? "no " : "",
921 chip->board.no_digital ? "no " : "", chip->board.dig_rate);
922
923 strcpy(card->driver, "Bt87x");
924 sprintf(card->shortname, "Brooktree Bt%x", pci->device);
925 sprintf(card->longname, "%s at %#llx, irq %i",
926 card->shortname, (unsigned long long)pci_resource_start(pci, 0),
927 chip->irq);
928 strcpy(card->mixername, "Bt87x");
929
930 err = snd_card_register(card);
931 if (err < 0)
932 goto _error;
933
934 pci_set_drvdata(pci, card);
935 ++dev;
936 return 0;
937
938_error:
939 snd_card_free(card);
940 return err;
941}
942
943static void snd_bt87x_remove(struct pci_dev *pci)
944{
945 snd_card_free(pci_get_drvdata(pci));
946}
947
948/* default entries for all Bt87x cards - it's not exported */
949/* driver_data is set to 0 to call detection */
950static const struct pci_device_id snd_bt87x_default_ids[] = {
951 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
952 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
953 {0}
954};
955
956static struct pci_driver driver = {
957 .name = KBUILD_MODNAME,
958 .id_table = snd_bt87x_ids,
959 .probe = snd_bt87x_probe,
960 .remove = snd_bt87x_remove,
961};
962
963static int __init alsa_card_bt87x_init(void)
964{
965 if (load_all)
966 driver.id_table = snd_bt87x_default_ids;
967 return pci_register_driver(&driver);
968}
969
970static void __exit alsa_card_bt87x_exit(void)
971{
972 pci_unregister_driver(&driver);
973}
974
975module_init(alsa_card_bt87x_init)
976module_exit(alsa_card_bt87x_exit)
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