source: GPL/trunk/alsa-kernel/pci/bt87x.c@ 750

Last change on this file since 750 was 717, checked in by David Azarewicz, 3 years ago

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File size: 29.1 KB
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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");
30
31#ifndef TARGET_OS2
32static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
33static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
34#else
35static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
36static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
37#endif
38static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
39static int digital_rate[SNDRV_CARDS]; /* digital input rate */
40static bool load_all; /* allow to load cards not the allowlist */
41
42module_param_array(index, int, NULL, 0444);
43MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
44module_param_array(id, charp, NULL, 0444);
45MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
46module_param_array(enable, bool, NULL, 0444);
47MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
48module_param_array(digital_rate, int, NULL, 0444);
49MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
50module_param(load_all, bool, 0444);
51MODULE_PARM_DESC(load_all, "Allow to load cards not on the allowlist");
52
53
54/* register offsets */
55#define REG_INT_STAT 0x100 /* interrupt status */
56#define REG_INT_MASK 0x104 /* interrupt mask */
57#define REG_GPIO_DMA_CTL 0x10c /* audio control */
58#define REG_PACKET_LEN 0x110 /* audio packet lengths */
59#define REG_RISC_STRT_ADD 0x114 /* RISC program start address */
60#define REG_RISC_COUNT 0x120 /* RISC program counter */
61
62/* interrupt bits */
63#define INT_OFLOW (1 << 3) /* audio A/D overflow */
64#define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */
65#define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */
66#define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */
67#define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */
68#define INT_PPERR (1 << 15) /* PCI parity error */
69#define INT_RIPERR (1 << 16) /* RISC instruction parity error */
70#define INT_PABORT (1 << 17) /* PCI master or target abort */
71#define INT_OCERR (1 << 18) /* invalid opcode */
72#define INT_SCERR (1 << 19) /* sync counter overflow */
73#define INT_RISC_EN (1 << 27) /* DMA controller running */
74#define INT_RISCS_SHIFT 28 /* RISC status bits */
75
76/* audio control bits */
77#define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */
78#define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */
79#define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */
80#define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */
81#define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */
82#define CTL_ACAP_EN (1 << 4) /* enable audio capture */
83#define CTL_DA_APP (1 << 5) /* GPIO input */
84#define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */
85#define CTL_DA_IOM_DA (1 << 6) /* digital audio input */
86#define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */
87#define CTL_DA_SDR_MASK (0xf<< 8)
88#define CTL_DA_LMT (1 << 12) /* limit audio data values */
89#define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */
90#define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */
91#define CTL_DA_DPM (1 << 15) /* data packet mode */
92#define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */
93#define CTL_DA_MLB (1 << 21) /* MSB/LSB format */
94#define CTL_DA_LRI (1 << 22) /* left/right indication */
95#define CTL_DA_SCE (1 << 23) /* sample clock edge */
96#define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */
97#define CTL_A_SEL_SFM (1 << 24) /* FM audio input */
98#define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */
99#define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */
100#define CTL_A_SEL_SHIFT 24
101#define CTL_A_SEL_MASK (3 << 24)
102#define CTL_A_PWRDN (1 << 26) /* analog audio power-down */
103#define CTL_A_G2X (1 << 27) /* audio gain boost */
104#define CTL_A_GAIN_SHIFT 28 /* audio input gain */
105#define CTL_A_GAIN_MASK (0xf<<28)
106
107/* RISC instruction opcodes */
108#define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */
109#define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */
110#define RISC_SKIP (0x2 << 28) /* skip FIFO data */
111#define RISC_JUMP (0x7 << 28) /* jump to address */
112#define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */
113
114/* RISC instruction bits */
115#define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */
116#define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */
117#define RISC_SET_STATUS_SHIFT 16 /* set status bits */
118#define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */
119#define RISC_IRQ ( 1 << 24) /* interrupt */
120#define RISC_EOL ( 1 << 26) /* end of line */
121#define RISC_SOL ( 1 << 27) /* start of line */
122
123/* SYNC status bits values */
124#define RISC_SYNC_FM1 0x6
125#define RISC_SYNC_VRO 0xc
126
127#define ANALOG_CLOCK 1792000
128#ifdef CONFIG_SND_BT87X_OVERCLOCK
129#define CLOCK_DIV_MIN 1
130#else
131#define CLOCK_DIV_MIN 4
132#endif
133#define CLOCK_DIV_MAX 15
134
135#define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \
136 INT_RIPERR | INT_PABORT | INT_OCERR)
137#define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS)
138
139/* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */
140#define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8)
141
142/* Cards with configuration information */
143enum snd_bt87x_boardid {
144 SND_BT87X_BOARD_UNKNOWN,
145 SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */
146 SND_BT87X_BOARD_ANALOG, /* board with no external A/D */
147 SND_BT87X_BOARD_OSPREY2x0,
148 SND_BT87X_BOARD_OSPREY440,
149 SND_BT87X_BOARD_AVPHONE98,
150};
151
152/* Card configuration */
153struct snd_bt87x_board {
154 int dig_rate; /* Digital input sampling rate */
155 u32 digital_fmt; /* Register settings for digital input */
156 unsigned no_analog:1; /* No analog input */
157 unsigned no_digital:1; /* No digital input */
158};
159
160static const struct snd_bt87x_board snd_bt87x_boards[] = {
161 [SND_BT87X_BOARD_UNKNOWN] = {
162 .dig_rate = 32000, /* just a guess */
163 },
164 [SND_BT87X_BOARD_GENERIC] = {
165 .dig_rate = 32000,
166 },
167 [SND_BT87X_BOARD_ANALOG] = {
168 .no_digital = 1,
169 },
170 [SND_BT87X_BOARD_OSPREY2x0] = {
171 .dig_rate = 44100,
172 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
173 },
174 [SND_BT87X_BOARD_OSPREY440] = {
175 .dig_rate = 32000,
176 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
177 .no_analog = 1,
178 },
179 [SND_BT87X_BOARD_AVPHONE98] = {
180 .dig_rate = 48000,
181 },
182};
183
184struct snd_bt87x {
185 struct snd_card *card;
186 struct pci_dev *pci;
187 struct snd_bt87x_board board;
188
189 void __iomem *mmio;
190 int irq;
191
192 spinlock_t reg_lock;
193 unsigned long opened;
194 struct snd_pcm_substream *substream;
195
196 struct snd_dma_buffer dma_risc;
197 unsigned int line_bytes;
198 unsigned int lines;
199
200 u32 reg_control;
201 u32 interrupt_mask;
202
203 int current_line;
204
205 int pci_parity_errors;
206};
207
208enum { DEVICE_DIGITAL, DEVICE_ANALOG };
209
210static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg)
211{
212 return readl(chip->mmio + reg);
213}
214
215static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)
216{
217 writel(value, chip->mmio + reg);
218}
219
220static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream,
221 unsigned int periods, unsigned int period_bytes)
222{
223 unsigned int i, offset;
224 __le32 *risc;
225
226 if (chip->dma_risc.area == NULL) {
227 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
228 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0)
229 return -ENOMEM;
230 }
231 risc = (__le32 *)chip->dma_risc.area;
232 offset = 0;
233 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1);
234 *risc++ = cpu_to_le32(0);
235 for (i = 0; i < periods; ++i) {
236 u32 rest;
237
238 rest = period_bytes;
239 do {
240 u32 cmd, len;
241 unsigned int addr;
242
243 len = PAGE_SIZE - (offset % PAGE_SIZE);
244 if (len > rest)
245 len = rest;
246 cmd = RISC_WRITE | len;
247 if (rest == period_bytes) {
248 u32 block = i * 16 / periods;
249 cmd |= RISC_SOL;
250 cmd |= block << RISC_SET_STATUS_SHIFT;
251 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT;
252 }
253 if (len == rest)
254 cmd |= RISC_EOL | RISC_IRQ;
255 *risc++ = cpu_to_le32(cmd);
256 addr = snd_pcm_sgbuf_get_addr(substream, offset);
257 *risc++ = cpu_to_le32(addr);
258 offset += len;
259 rest -= len;
260 } while (rest > 0);
261 }
262 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO);
263 *risc++ = cpu_to_le32(0);
264 *risc++ = cpu_to_le32(RISC_JUMP);
265 *risc++ = cpu_to_le32(chip->dma_risc.addr);
266 chip->line_bytes = period_bytes;
267 chip->lines = periods;
268 return 0;
269}
270
271static void snd_bt87x_free_risc(struct snd_bt87x *chip)
272{
273 if (chip->dma_risc.area) {
274 snd_dma_free_pages(&chip->dma_risc);
275 chip->dma_risc.area = NULL;
276 }
277}
278
279static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status)
280{
281 int pci_status = pci_status_get_and_clear_errors(chip->pci);
282
283 if (pci_status != PCI_STATUS_DETECTED_PARITY)
284 dev_err(chip->card->dev,
285 "Aieee - PCI error! status %#08x, PCI status %#04x\n",
286 status & ERROR_INTERRUPTS, pci_status);
287 else {
288 dev_err(chip->card->dev,
289 "Aieee - PCI parity error detected!\n");
290 /* error 'handling' similar to aic7xxx_pci.c: */
291 chip->pci_parity_errors++;
292 if (chip->pci_parity_errors > 20) {
293 dev_err(chip->card->dev,
294 "Too many PCI parity errors observed.\n");
295 dev_err(chip->card->dev,
296 "Some device on this bus is generating bad parity.\n");
297 dev_err(chip->card->dev,
298 "This is an error *observed by*, not *generated by*, this card.\n");
299 dev_err(chip->card->dev,
300 "PCI parity error checking has been disabled.\n");
301 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);
302 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
303 }
304 }
305}
306
307static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
308{
309 struct snd_bt87x *chip = dev_id;
310 unsigned int status, irq_status;
311
312 status = snd_bt87x_readl(chip, REG_INT_STAT);
313 irq_status = status & chip->interrupt_mask;
314 if (!irq_status)
315 return IRQ_NONE;
316 snd_bt87x_writel(chip, REG_INT_STAT, irq_status);
317
318 if (irq_status & ERROR_INTERRUPTS) {
319 if (irq_status & (INT_FBUS | INT_FTRGT))
320 dev_warn(chip->card->dev,
321 "FIFO overrun, status %#08x\n", status);
322 if (irq_status & INT_OCERR)
323 dev_err(chip->card->dev,
324 "internal RISC error, status %#08x\n", status);
325 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT))
326 snd_bt87x_pci_error(chip, irq_status);
327 }
328 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {
329 int current_block, irq_block;
330
331 /* assume that exactly one line has been recorded */
332 chip->current_line = (chip->current_line + 1) % chip->lines;
333 /* but check if some interrupts have been skipped */
334 current_block = chip->current_line * 16 / chip->lines;
335 irq_block = status >> INT_RISCS_SHIFT;
336 if (current_block != irq_block)
337 chip->current_line = DIV_ROUND_UP(irq_block * chip->lines,
338 16);
339
340 snd_pcm_period_elapsed(chip->substream);
341 }
342 return IRQ_HANDLED;
343}
344
345static const struct snd_pcm_hardware snd_bt87x_digital_hw = {
346 .info = SNDRV_PCM_INFO_MMAP |
347 SNDRV_PCM_INFO_INTERLEAVED |
348 SNDRV_PCM_INFO_BLOCK_TRANSFER |
349 SNDRV_PCM_INFO_MMAP_VALID |
350 SNDRV_PCM_INFO_BATCH,
351 .formats = SNDRV_PCM_FMTBIT_S16_LE,
352 .rates = 0, /* set at runtime */
353 .channels_min = 2,
354 .channels_max = 2,
355 .buffer_bytes_max = 255 * 4092,
356 .period_bytes_min = 32,
357 .period_bytes_max = 4092,
358 .periods_min = 2,
359 .periods_max = 255,
360};
361
362static const struct snd_pcm_hardware snd_bt87x_analog_hw = {
363 .info = SNDRV_PCM_INFO_MMAP |
364 SNDRV_PCM_INFO_INTERLEAVED |
365 SNDRV_PCM_INFO_BLOCK_TRANSFER |
366 SNDRV_PCM_INFO_MMAP_VALID |
367 SNDRV_PCM_INFO_BATCH,
368 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
369 .rates = SNDRV_PCM_RATE_KNOT,
370 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,
371 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN,
372 .channels_min = 1,
373 .channels_max = 1,
374 .buffer_bytes_max = 255 * 4092,
375 .period_bytes_min = 32,
376 .period_bytes_max = 4092,
377 .periods_min = 2,
378 .periods_max = 255,
379};
380
381static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
382{
383 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN;
384 runtime->hw = snd_bt87x_digital_hw;
385 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);
386 runtime->hw.rate_min = chip->board.dig_rate;
387 runtime->hw.rate_max = chip->board.dig_rate;
388 return 0;
389}
390
391static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
392{
393 static const struct snd_ratnum analog_clock = {
394 .num = ANALOG_CLOCK,
395 .den_min = CLOCK_DIV_MIN,
396 .den_max = CLOCK_DIV_MAX,
397 .den_step = 1
398 };
399 static const struct snd_pcm_hw_constraint_ratnums constraint_rates = {
400 .nrats = 1,
401 .rats = &analog_clock
402 };
403
404 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN);
405 runtime->hw = snd_bt87x_analog_hw;
406 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
407 &constraint_rates);
408}
409
410static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream)
411{
412 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
413 struct snd_pcm_runtime *runtime = substream->runtime;
414 int err;
415
416 if (test_and_set_bit(0, &chip->opened))
417 return -EBUSY;
418
419 if (substream->pcm->device == DEVICE_DIGITAL)
420 err = snd_bt87x_set_digital_hw(chip, runtime);
421 else
422 err = snd_bt87x_set_analog_hw(chip, runtime);
423 if (err < 0)
424 goto _error;
425
426 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
427 if (err < 0)
428 goto _error;
429
430 chip->substream = substream;
431 return 0;
432
433_error:
434 clear_bit(0, &chip->opened);
435 smp_mb__after_atomic();
436 return err;
437}
438
439static int snd_bt87x_close(struct snd_pcm_substream *substream)
440{
441 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
442
443 spin_lock_irq(&chip->reg_lock);
444 chip->reg_control |= CTL_A_PWRDN;
445 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
446 spin_unlock_irq(&chip->reg_lock);
447
448 chip->substream = NULL;
449 clear_bit(0, &chip->opened);
450 smp_mb__after_atomic();
451 return 0;
452}
453
454static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,
455 struct snd_pcm_hw_params *hw_params)
456{
457 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
458
459 return snd_bt87x_create_risc(chip, substream,
460 params_periods(hw_params),
461 params_period_bytes(hw_params));
462}
463
464static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)
465{
466 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
467
468 snd_bt87x_free_risc(chip);
469 return 0;
470}
471
472static int snd_bt87x_prepare(struct snd_pcm_substream *substream)
473{
474 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
475 struct snd_pcm_runtime *runtime = substream->runtime;
476 int decimation;
477
478 spin_lock_irq(&chip->reg_lock);
479 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);
480 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;
481 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;
482 if (runtime->format == SNDRV_PCM_FORMAT_S8)
483 chip->reg_control |= CTL_DA_SBR;
484 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
485 spin_unlock_irq(&chip->reg_lock);
486 return 0;
487}
488
489static int snd_bt87x_start(struct snd_bt87x *chip)
490{
491 spin_lock(&chip->reg_lock);
492 chip->current_line = 0;
493 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;
494 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);
495 snd_bt87x_writel(chip, REG_PACKET_LEN,
496 chip->line_bytes | (chip->lines << 16));
497 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
498 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
499 spin_unlock(&chip->reg_lock);
500 return 0;
501}
502
503static int snd_bt87x_stop(struct snd_bt87x *chip)
504{
505 spin_lock(&chip->reg_lock);
506 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);
507 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
508 snd_bt87x_writel(chip, REG_INT_MASK, 0);
509 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
510 spin_unlock(&chip->reg_lock);
511 return 0;
512}
513
514static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd)
515{
516 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
517
518 switch (cmd) {
519 case SNDRV_PCM_TRIGGER_START:
520 return snd_bt87x_start(chip);
521 case SNDRV_PCM_TRIGGER_STOP:
522 return snd_bt87x_stop(chip);
523 default:
524 return -EINVAL;
525 }
526}
527
528static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)
529{
530 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
531 struct snd_pcm_runtime *runtime = substream->runtime;
532
533 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);
534}
535
536static const struct snd_pcm_ops snd_bt87x_pcm_ops = {
537 .open = snd_bt87x_pcm_open,
538 .close = snd_bt87x_close,
539 .hw_params = snd_bt87x_hw_params,
540 .hw_free = snd_bt87x_hw_free,
541 .prepare = snd_bt87x_prepare,
542 .trigger = snd_bt87x_trigger,
543 .pointer = snd_bt87x_pointer,
544};
545
546static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol,
547 struct snd_ctl_elem_info *info)
548{
549 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
550 info->count = 1;
551 info->value.integer.min = 0;
552 info->value.integer.max = 15;
553 return 0;
554}
555
556static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol,
557 struct snd_ctl_elem_value *value)
558{
559 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
560
561 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;
562 return 0;
563}
564
565static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol,
566 struct snd_ctl_elem_value *value)
567{
568 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
569 u32 old_control;
570 int changed;
571
572 spin_lock_irq(&chip->reg_lock);
573 old_control = chip->reg_control;
574 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)
575 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);
576 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
577 changed = old_control != chip->reg_control;
578 spin_unlock_irq(&chip->reg_lock);
579 return changed;
580}
581
582static const struct snd_kcontrol_new snd_bt87x_capture_volume = {
583 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
584 .name = "Capture Volume",
585 .info = snd_bt87x_capture_volume_info,
586 .get = snd_bt87x_capture_volume_get,
587 .put = snd_bt87x_capture_volume_put,
588};
589
590#define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info
591
592static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol,
593 struct snd_ctl_elem_value *value)
594{
595 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
596
597 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);
598 return 0;
599}
600
601static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol,
602 struct snd_ctl_elem_value *value)
603{
604 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
605 u32 old_control;
606 int changed;
607
608 spin_lock_irq(&chip->reg_lock);
609 old_control = chip->reg_control;
610 chip->reg_control = (chip->reg_control & ~CTL_A_G2X)
611 | (value->value.integer.value[0] ? CTL_A_G2X : 0);
612 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
613 changed = chip->reg_control != old_control;
614 spin_unlock_irq(&chip->reg_lock);
615 return changed;
616}
617
618static const struct snd_kcontrol_new snd_bt87x_capture_boost = {
619 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
620 .name = "Capture Boost",
621 .info = snd_bt87x_capture_boost_info,
622 .get = snd_bt87x_capture_boost_get,
623 .put = snd_bt87x_capture_boost_put,
624};
625
626static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol,
627 struct snd_ctl_elem_info *info)
628{
629 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"};
630
631 return snd_ctl_enum_info(info, 1, 3, texts);
632}
633
634static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol,
635 struct snd_ctl_elem_value *value)
636{
637 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
638
639 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;
640 return 0;
641}
642
643static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol,
644 struct snd_ctl_elem_value *value)
645{
646 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
647 u32 old_control;
648 int changed;
649
650 spin_lock_irq(&chip->reg_lock);
651 old_control = chip->reg_control;
652 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)
653 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);
654 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
655 changed = chip->reg_control != old_control;
656 spin_unlock_irq(&chip->reg_lock);
657 return changed;
658}
659
660static const struct snd_kcontrol_new snd_bt87x_capture_source = {
661 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
662 .name = "Capture Source",
663 .info = snd_bt87x_capture_source_info,
664 .get = snd_bt87x_capture_source_get,
665 .put = snd_bt87x_capture_source_put,
666};
667
668static void snd_bt87x_free(struct snd_card *card)
669{
670 struct snd_bt87x *chip = card->private_data;
671
672 snd_bt87x_stop(chip);
673}
674
675static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
676{
677 int err;
678 struct snd_pcm *pcm;
679
680 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
681 if (err < 0)
682 return err;
683 pcm->private_data = chip;
684 strcpy(pcm->name, name);
685 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
686 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
687 &chip->pci->dev,
688 128 * 1024,
689 ALIGN(255 * 4092, 1024));
690 return 0;
691}
692
693static int snd_bt87x_create(struct snd_card *card,
694 struct pci_dev *pci)
695{
696 struct snd_bt87x *chip = card->private_data;
697 int err;
698
699 err = pcim_enable_device(pci);
700 if (err < 0)
701 return err;
702
703 chip->card = card;
704 chip->pci = pci;
705 chip->irq = -1;
706 spin_lock_init(&chip->reg_lock);
707
708#ifndef TARGET_OS2
709 err = pcim_iomap_regions(pci, 1 << 0, "Bt87x audio");
710 if (err < 0)
711 return err;
712 chip->mmio = pcim_iomap_table(pci)[0];
713#else
714 err = pci_request_regions(pci, "Bt87x audio");
715 if (err < 0) {
716 kfree(chip);
717 pci_disable_device(pci);
718 return err;
719 }
720 chip->mmio = pci_ioremap_bar(pci, 0);
721#endif
722 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |
723 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
724 chip->interrupt_mask = MY_INTERRUPTS;
725 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
726 snd_bt87x_writel(chip, REG_INT_MASK, 0);
727 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
728
729 err = devm_request_irq(&pci->dev, pci->irq, snd_bt87x_interrupt,
730 IRQF_SHARED, KBUILD_MODNAME, chip);
731 if (err < 0) {
732 dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
733 return err;
734 }
735 chip->irq = pci->irq;
736 card->sync_irq = chip->irq;
737 card->private_free = snd_bt87x_free;
738 pci_set_master(pci);
739
740 return 0;
741}
742
743#define BT_DEVICE(chip, subvend, subdev, id) \
744 { .vendor = PCI_VENDOR_ID_BROOKTREE, \
745 .device = chip, \
746 .subvendor = subvend, .subdevice = subdev, \
747 .driver_data = SND_BT87X_BOARD_ ## id }
748/* driver_data is the card id for that device */
749
750static const struct pci_device_id snd_bt87x_ids[] = {
751 /* Hauppauge WinTV series */
752 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),
753 /* Hauppauge WinTV series */
754 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),
755 /* Viewcast Osprey 200 */
756 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),
757 /* Viewcast Osprey 440 (rate is configurable via gpio) */
758 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),
759 /* ATI TV-Wonder */
760 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),
761 /* Leadtek Winfast tv 2000xp delux */
762 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),
763 /* Pinnacle PCTV */
764 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC),
765 /* Voodoo TV 200 */
766 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),
767 /* Askey Computer Corp. MagicTView'99 */
768 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC),
769 /* AVerMedia Studio No. 103, 203, ...? */
770 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),
771 /* Prolink PixelView PV-M4900 */
772 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),
773 /* Pinnacle Studio PCTV rave */
774 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),
775 {0}
776};
777MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
778
779/* cards known not to have audio
780 * (DVB cards use the audio function to transfer MPEG data) */
781static struct {
782 unsigned short subvendor, subdevice;
783} denylist[] = {
784 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */
785 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */
786 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */
787 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
788 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */
789 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
790 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */
791 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
792 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
793 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
794 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
795};
796
797static struct pci_driver driver;
798
799/* return the id of the card, or a negative value if it's on the denylist */
800static int snd_bt87x_detect_card(struct pci_dev *pci)
801{
802 int i;
803 const struct pci_device_id *supported;
804
805 supported = pci_match_id(snd_bt87x_ids, pci);
806 if (supported && supported->driver_data > 0)
807 return supported->driver_data;
808
809 for (i = 0; i < ARRAY_SIZE(denylist); ++i)
810 if (denylist[i].subvendor == pci->subsystem_vendor &&
811 denylist[i].subdevice == pci->subsystem_device) {
812 dev_dbg(&pci->dev,
813 "card %#04x-%#04x:%#04x has no audio\n",
814 pci->device, pci->subsystem_vendor, pci->subsystem_device);
815 return -EBUSY;
816 }
817
818 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n",
819 pci->device, pci->subsystem_vendor, pci->subsystem_device);
820 dev_info(&pci->dev, "please mail id, board name, and, "
821 "if it works, the correct digital_rate option to "
822 "<alsa-devel@alsa-project.org>\n");
823 return SND_BT87X_BOARD_UNKNOWN;
824}
825
826static int __snd_bt87x_probe(struct pci_dev *pci,
827 const struct pci_device_id *pci_id)
828{
829 static int dev;
830 struct snd_card *card;
831 struct snd_bt87x *chip;
832 int err;
833 enum snd_bt87x_boardid boardid;
834
835 if (!pci_id->driver_data) {
836 err = snd_bt87x_detect_card(pci);
837 if (err < 0)
838 return -ENODEV;
839 boardid = err;
840 } else
841 boardid = pci_id->driver_data;
842
843 if (dev >= SNDRV_CARDS)
844 return -ENODEV;
845 if (!enable[dev]) {
846 ++dev;
847 return -ENOENT;
848 }
849
850 err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
851 sizeof(*chip), &card);
852 if (err < 0)
853 return err;
854 chip = card->private_data;
855
856 err = snd_bt87x_create(card, pci);
857 if (err < 0)
858 return err;
859
860 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
861
862 if (!chip->board.no_digital) {
863 if (digital_rate[dev] > 0)
864 chip->board.dig_rate = digital_rate[dev];
865
866 chip->reg_control |= chip->board.digital_fmt;
867
868 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
869 if (err < 0)
870 return err;
871 }
872 if (!chip->board.no_analog) {
873 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
874 if (err < 0)
875 return err;
876 err = snd_ctl_add(card, snd_ctl_new1(
877 &snd_bt87x_capture_volume, chip));
878 if (err < 0)
879 return err;
880 err = snd_ctl_add(card, snd_ctl_new1(
881 &snd_bt87x_capture_boost, chip));
882 if (err < 0)
883 return err;
884 err = snd_ctl_add(card, snd_ctl_new1(
885 &snd_bt87x_capture_source, chip));
886 if (err < 0)
887 return err;
888 }
889 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital "
890 "(rate %d Hz)\n", dev, boardid,
891 chip->board.no_analog ? "no " : "",
892 chip->board.no_digital ? "no " : "", chip->board.dig_rate);
893
894 strcpy(card->driver, "Bt87x");
895 sprintf(card->shortname, "Brooktree Bt%x", pci->device);
896 sprintf(card->longname, "%s at %#llx, irq %i",
897 card->shortname, (unsigned long long)pci_resource_start(pci, 0),
898 chip->irq);
899 strcpy(card->mixername, "Bt87x");
900
901 err = snd_card_register(card);
902 if (err < 0)
903 return err;
904
905 pci_set_drvdata(pci, card);
906 ++dev;
907 return 0;
908}
909
910static int snd_bt87x_probe(struct pci_dev *pci,
911 const struct pci_device_id *pci_id)
912{
913 return snd_card_free_on_error(&pci->dev, __snd_bt87x_probe(pci, pci_id));
914}
915
916/* default entries for all Bt87x cards - it's not exported */
917/* driver_data is set to 0 to call detection */
918static const struct pci_device_id snd_bt87x_default_ids[] = {
919 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
920 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
921 {0}
922};
923
924static struct pci_driver driver = {
925 .name = KBUILD_MODNAME,
926 .id_table = snd_bt87x_ids,
927 .probe = snd_bt87x_probe,
928};
929
930static int __init alsa_card_bt87x_init(void)
931{
932 if (load_all)
933 driver.id_table = snd_bt87x_default_ids;
934 return pci_register_driver(&driver);
935}
936
937static void __exit alsa_card_bt87x_exit(void)
938{
939 pci_unregister_driver(&driver);
940}
941
942module_init(alsa_card_bt87x_init)
943module_exit(alsa_card_bt87x_exit)
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