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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#include <linux/init.h>
11#include <linux/interrupt.h>
12#include <linux/pci.h>
13#include <linux/slab.h>
14#include <linux/module.h>
15#include <linux/bitops.h>
16#include <linux/io.h>
17#include <sound/core.h>
18#include <sound/pcm.h>
19#include <sound/pcm_params.h>
20#include <sound/control.h>
21#include <sound/initval.h>
22
23MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
24MODULE_DESCRIPTION("Brooktree Bt87x audio driver");
25MODULE_LICENSE("GPL");
26MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878},"
27 "{Brooktree,Bt879}}");
28
29static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
30static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
31static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
32static int digital_rate[SNDRV_CARDS]; /* digital input rate */
33static bool load_all; /* allow to load cards not the allowlist */
34
35module_param_array(index, int, NULL, 0444);
36MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
37module_param_array(id, charp, NULL, 0444);
38MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
39module_param_array(enable, bool, NULL, 0444);
40MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
41module_param_array(digital_rate, int, NULL, 0444);
42MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
43module_param(load_all, bool, 0444);
44MODULE_PARM_DESC(load_all, "Allow to load cards not on the allowlist");
45
46
47/* register offsets */
48#define REG_INT_STAT 0x100 /* interrupt status */
49#define REG_INT_MASK 0x104 /* interrupt mask */
50#define REG_GPIO_DMA_CTL 0x10c /* audio control */
51#define REG_PACKET_LEN 0x110 /* audio packet lengths */
52#define REG_RISC_STRT_ADD 0x114 /* RISC program start address */
53#define REG_RISC_COUNT 0x120 /* RISC program counter */
54
55/* interrupt bits */
56#define INT_OFLOW (1 << 3) /* audio A/D overflow */
57#define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */
58#define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */
59#define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */
60#define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */
61#define INT_PPERR (1 << 15) /* PCI parity error */
62#define INT_RIPERR (1 << 16) /* RISC instruction parity error */
63#define INT_PABORT (1 << 17) /* PCI master or target abort */
64#define INT_OCERR (1 << 18) /* invalid opcode */
65#define INT_SCERR (1 << 19) /* sync counter overflow */
66#define INT_RISC_EN (1 << 27) /* DMA controller running */
67#define INT_RISCS_SHIFT 28 /* RISC status bits */
68
69/* audio control bits */
70#define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */
71#define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */
72#define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */
73#define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */
74#define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */
75#define CTL_ACAP_EN (1 << 4) /* enable audio capture */
76#define CTL_DA_APP (1 << 5) /* GPIO input */
77#define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */
78#define CTL_DA_IOM_DA (1 << 6) /* digital audio input */
79#define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */
80#define CTL_DA_SDR_MASK (0xf<< 8)
81#define CTL_DA_LMT (1 << 12) /* limit audio data values */
82#define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */
83#define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */
84#define CTL_DA_DPM (1 << 15) /* data packet mode */
85#define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */
86#define CTL_DA_MLB (1 << 21) /* MSB/LSB format */
87#define CTL_DA_LRI (1 << 22) /* left/right indication */
88#define CTL_DA_SCE (1 << 23) /* sample clock edge */
89#define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */
90#define CTL_A_SEL_SFM (1 << 24) /* FM audio input */
91#define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */
92#define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */
93#define CTL_A_SEL_SHIFT 24
94#define CTL_A_SEL_MASK (3 << 24)
95#define CTL_A_PWRDN (1 << 26) /* analog audio power-down */
96#define CTL_A_G2X (1 << 27) /* audio gain boost */
97#define CTL_A_GAIN_SHIFT 28 /* audio input gain */
98#define CTL_A_GAIN_MASK (0xf<<28)
99
100/* RISC instruction opcodes */
101#define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */
102#define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */
103#define RISC_SKIP (0x2 << 28) /* skip FIFO data */
104#define RISC_JUMP (0x7 << 28) /* jump to address */
105#define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */
106
107/* RISC instruction bits */
108#define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */
109#define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */
110#define RISC_SET_STATUS_SHIFT 16 /* set status bits */
111#define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */
112#define RISC_IRQ ( 1 << 24) /* interrupt */
113#define RISC_EOL ( 1 << 26) /* end of line */
114#define RISC_SOL ( 1 << 27) /* start of line */
115
116/* SYNC status bits values */
117#define RISC_SYNC_FM1 0x6
118#define RISC_SYNC_VRO 0xc
119
120#define ANALOG_CLOCK 1792000
121#ifdef CONFIG_SND_BT87X_OVERCLOCK
122#define CLOCK_DIV_MIN 1
123#else
124#define CLOCK_DIV_MIN 4
125#endif
126#define CLOCK_DIV_MAX 15
127
128#define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \
129 INT_RIPERR | INT_PABORT | INT_OCERR)
130#define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS)
131
132/* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */
133#define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8)
134
135/* Cards with configuration information */
136enum snd_bt87x_boardid {
137 SND_BT87X_BOARD_UNKNOWN,
138 SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */
139 SND_BT87X_BOARD_ANALOG, /* board with no external A/D */
140 SND_BT87X_BOARD_OSPREY2x0,
141 SND_BT87X_BOARD_OSPREY440,
142 SND_BT87X_BOARD_AVPHONE98,
143};
144
145/* Card configuration */
146struct snd_bt87x_board {
147 int dig_rate; /* Digital input sampling rate */
148 u32 digital_fmt; /* Register settings for digital input */
149 unsigned no_analog:1; /* No analog input */
150 unsigned no_digital:1; /* No digital input */
151};
152
153static const struct snd_bt87x_board snd_bt87x_boards[] = {
154 [SND_BT87X_BOARD_UNKNOWN] = {
155 .dig_rate = 32000, /* just a guess */
156 },
157 [SND_BT87X_BOARD_GENERIC] = {
158 .dig_rate = 32000,
159 },
160 [SND_BT87X_BOARD_ANALOG] = {
161 .no_digital = 1,
162 },
163 [SND_BT87X_BOARD_OSPREY2x0] = {
164 .dig_rate = 44100,
165 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
166 },
167 [SND_BT87X_BOARD_OSPREY440] = {
168 .dig_rate = 32000,
169 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
170 .no_analog = 1,
171 },
172 [SND_BT87X_BOARD_AVPHONE98] = {
173 .dig_rate = 48000,
174 },
175};
176
177struct snd_bt87x {
178 struct snd_card *card;
179 struct pci_dev *pci;
180 struct snd_bt87x_board board;
181
182 void __iomem *mmio;
183 int irq;
184
185 spinlock_t reg_lock;
186 unsigned long opened;
187 struct snd_pcm_substream *substream;
188
189 struct snd_dma_buffer dma_risc;
190 unsigned int line_bytes;
191 unsigned int lines;
192
193 u32 reg_control;
194 u32 interrupt_mask;
195
196 int current_line;
197
198 int pci_parity_errors;
199};
200
201enum { DEVICE_DIGITAL, DEVICE_ANALOG };
202
203static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg)
204{
205 return readl(chip->mmio + reg);
206}
207
208static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)
209{
210 writel(value, chip->mmio + reg);
211}
212
213static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream,
214 unsigned int periods, unsigned int period_bytes)
215{
216 unsigned int i, offset;
217 __le32 *risc;
218
219 if (chip->dma_risc.area == NULL) {
220 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
221 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0)
222 return -ENOMEM;
223 }
224 risc = (__le32 *)chip->dma_risc.area;
225 offset = 0;
226 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1);
227 *risc++ = cpu_to_le32(0);
228 for (i = 0; i < periods; ++i) {
229 u32 rest;
230
231 rest = period_bytes;
232 do {
233 u32 cmd, len;
234 unsigned int addr;
235
236 len = PAGE_SIZE - (offset % PAGE_SIZE);
237 if (len > rest)
238 len = rest;
239 cmd = RISC_WRITE | len;
240 if (rest == period_bytes) {
241 u32 block = i * 16 / periods;
242 cmd |= RISC_SOL;
243 cmd |= block << RISC_SET_STATUS_SHIFT;
244 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT;
245 }
246 if (len == rest)
247 cmd |= RISC_EOL | RISC_IRQ;
248 *risc++ = cpu_to_le32(cmd);
249 addr = snd_pcm_sgbuf_get_addr(substream, offset);
250 *risc++ = cpu_to_le32(addr);
251 offset += len;
252 rest -= len;
253 } while (rest > 0);
254 }
255 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO);
256 *risc++ = cpu_to_le32(0);
257 *risc++ = cpu_to_le32(RISC_JUMP);
258 *risc++ = cpu_to_le32(chip->dma_risc.addr);
259 chip->line_bytes = period_bytes;
260 chip->lines = periods;
261 return 0;
262}
263
264static void snd_bt87x_free_risc(struct snd_bt87x *chip)
265{
266 if (chip->dma_risc.area) {
267 snd_dma_free_pages(&chip->dma_risc);
268 chip->dma_risc.area = NULL;
269 }
270}
271
272static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status)
273{
274 int pci_status = pci_status_get_and_clear_errors(chip->pci);
275
276 if (pci_status != PCI_STATUS_DETECTED_PARITY)
277 dev_err(chip->card->dev,
278 "Aieee - PCI error! status %#08x, PCI status %#04x\n",
279 status & ERROR_INTERRUPTS, pci_status);
280 else {
281 dev_err(chip->card->dev,
282 "Aieee - PCI parity error detected!\n");
283 /* error 'handling' similar to aic7xxx_pci.c: */
284 chip->pci_parity_errors++;
285 if (chip->pci_parity_errors > 20) {
286 dev_err(chip->card->dev,
287 "Too many PCI parity errors observed.\n");
288 dev_err(chip->card->dev,
289 "Some device on this bus is generating bad parity.\n");
290 dev_err(chip->card->dev,
291 "This is an error *observed by*, not *generated by*, this card.\n");
292 dev_err(chip->card->dev,
293 "PCI parity error checking has been disabled.\n");
294 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);
295 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
296 }
297 }
298}
299
300static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
301{
302 struct snd_bt87x *chip = dev_id;
303 unsigned int status, irq_status;
304
305 status = snd_bt87x_readl(chip, REG_INT_STAT);
306 irq_status = status & chip->interrupt_mask;
307 if (!irq_status)
308 return IRQ_NONE;
309 snd_bt87x_writel(chip, REG_INT_STAT, irq_status);
310
311 if (irq_status & ERROR_INTERRUPTS) {
312 if (irq_status & (INT_FBUS | INT_FTRGT))
313 dev_warn(chip->card->dev,
314 "FIFO overrun, status %#08x\n", status);
315 if (irq_status & INT_OCERR)
316 dev_err(chip->card->dev,
317 "internal RISC error, status %#08x\n", status);
318 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT))
319 snd_bt87x_pci_error(chip, irq_status);
320 }
321 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {
322 int current_block, irq_block;
323
324 /* assume that exactly one line has been recorded */
325 chip->current_line = (chip->current_line + 1) % chip->lines;
326 /* but check if some interrupts have been skipped */
327 current_block = chip->current_line * 16 / chip->lines;
328 irq_block = status >> INT_RISCS_SHIFT;
329 if (current_block != irq_block)
330 chip->current_line = (irq_block * chip->lines + 15) / 16;
331
332 snd_pcm_period_elapsed(chip->substream);
333 }
334 return IRQ_HANDLED;
335}
336
337static const struct snd_pcm_hardware snd_bt87x_digital_hw = {
338 .info = SNDRV_PCM_INFO_MMAP |
339 SNDRV_PCM_INFO_INTERLEAVED |
340 SNDRV_PCM_INFO_BLOCK_TRANSFER |
341 SNDRV_PCM_INFO_MMAP_VALID |
342 SNDRV_PCM_INFO_BATCH,
343 .formats = SNDRV_PCM_FMTBIT_S16_LE,
344 .rates = 0, /* set at runtime */
345 .channels_min = 2,
346 .channels_max = 2,
347 .buffer_bytes_max = 255 * 4092,
348 .period_bytes_min = 32,
349 .period_bytes_max = 4092,
350 .periods_min = 2,
351 .periods_max = 255,
352};
353
354static const struct snd_pcm_hardware snd_bt87x_analog_hw = {
355 .info = SNDRV_PCM_INFO_MMAP |
356 SNDRV_PCM_INFO_INTERLEAVED |
357 SNDRV_PCM_INFO_BLOCK_TRANSFER |
358 SNDRV_PCM_INFO_MMAP_VALID |
359 SNDRV_PCM_INFO_BATCH,
360 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
361 .rates = SNDRV_PCM_RATE_KNOT,
362 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,
363 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN,
364 .channels_min = 1,
365 .channels_max = 1,
366 .buffer_bytes_max = 255 * 4092,
367 .period_bytes_min = 32,
368 .period_bytes_max = 4092,
369 .periods_min = 2,
370 .periods_max = 255,
371};
372
373static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
374{
375 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN;
376 runtime->hw = snd_bt87x_digital_hw;
377 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);
378 runtime->hw.rate_min = chip->board.dig_rate;
379 runtime->hw.rate_max = chip->board.dig_rate;
380 return 0;
381}
382
383static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
384{
385 static const struct snd_ratnum analog_clock = {
386 .num = ANALOG_CLOCK,
387 .den_min = CLOCK_DIV_MIN,
388 .den_max = CLOCK_DIV_MAX,
389 .den_step = 1
390 };
391 static const struct snd_pcm_hw_constraint_ratnums constraint_rates = {
392 .nrats = 1,
393 .rats = &analog_clock
394 };
395
396 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN);
397 runtime->hw = snd_bt87x_analog_hw;
398 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
399 &constraint_rates);
400}
401
402static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream)
403{
404 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
405 struct snd_pcm_runtime *runtime = substream->runtime;
406 int err;
407
408 if (test_and_set_bit(0, &chip->opened))
409 return -EBUSY;
410
411 if (substream->pcm->device == DEVICE_DIGITAL)
412 err = snd_bt87x_set_digital_hw(chip, runtime);
413 else
414 err = snd_bt87x_set_analog_hw(chip, runtime);
415 if (err < 0)
416 goto _error;
417
418 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
419 if (err < 0)
420 goto _error;
421
422 chip->substream = substream;
423 return 0;
424
425_error:
426 clear_bit(0, &chip->opened);
427 smp_mb__after_atomic();
428 return err;
429}
430
431static int snd_bt87x_close(struct snd_pcm_substream *substream)
432{
433 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
434
435 spin_lock_irq(&chip->reg_lock);
436 chip->reg_control |= CTL_A_PWRDN;
437 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
438 spin_unlock_irq(&chip->reg_lock);
439
440 chip->substream = NULL;
441 clear_bit(0, &chip->opened);
442 smp_mb__after_atomic();
443 return 0;
444}
445
446static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,
447 struct snd_pcm_hw_params *hw_params)
448{
449 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
450
451 return snd_bt87x_create_risc(chip, substream,
452 params_periods(hw_params),
453 params_period_bytes(hw_params));
454}
455
456static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)
457{
458 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
459
460 snd_bt87x_free_risc(chip);
461 return 0;
462}
463
464static int snd_bt87x_prepare(struct snd_pcm_substream *substream)
465{
466 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
467 struct snd_pcm_runtime *runtime = substream->runtime;
468 int decimation;
469
470 spin_lock_irq(&chip->reg_lock);
471 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);
472 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;
473 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;
474 if (runtime->format == SNDRV_PCM_FORMAT_S8)
475 chip->reg_control |= CTL_DA_SBR;
476 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
477 spin_unlock_irq(&chip->reg_lock);
478 return 0;
479}
480
481static int snd_bt87x_start(struct snd_bt87x *chip)
482{
483 spin_lock(&chip->reg_lock);
484 chip->current_line = 0;
485 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;
486 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);
487 snd_bt87x_writel(chip, REG_PACKET_LEN,
488 chip->line_bytes | (chip->lines << 16));
489 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
490 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
491 spin_unlock(&chip->reg_lock);
492 return 0;
493}
494
495static int snd_bt87x_stop(struct snd_bt87x *chip)
496{
497 spin_lock(&chip->reg_lock);
498 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);
499 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
500 snd_bt87x_writel(chip, REG_INT_MASK, 0);
501 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
502 spin_unlock(&chip->reg_lock);
503 return 0;
504}
505
506static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd)
507{
508 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
509
510 switch (cmd) {
511 case SNDRV_PCM_TRIGGER_START:
512 return snd_bt87x_start(chip);
513 case SNDRV_PCM_TRIGGER_STOP:
514 return snd_bt87x_stop(chip);
515 default:
516 return -EINVAL;
517 }
518}
519
520static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)
521{
522 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
523 struct snd_pcm_runtime *runtime = substream->runtime;
524
525 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);
526}
527
528static const struct snd_pcm_ops snd_bt87x_pcm_ops = {
529 .open = snd_bt87x_pcm_open,
530 .close = snd_bt87x_close,
531 .hw_params = snd_bt87x_hw_params,
532 .hw_free = snd_bt87x_hw_free,
533 .prepare = snd_bt87x_prepare,
534 .trigger = snd_bt87x_trigger,
535 .pointer = snd_bt87x_pointer,
536};
537
538static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol,
539 struct snd_ctl_elem_info *info)
540{
541 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
542 info->count = 1;
543 info->value.integer.min = 0;
544 info->value.integer.max = 15;
545 return 0;
546}
547
548static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol,
549 struct snd_ctl_elem_value *value)
550{
551 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
552
553 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;
554 return 0;
555}
556
557static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol,
558 struct snd_ctl_elem_value *value)
559{
560 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
561 u32 old_control;
562 int changed;
563
564 spin_lock_irq(&chip->reg_lock);
565 old_control = chip->reg_control;
566 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)
567 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);
568 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
569 changed = old_control != chip->reg_control;
570 spin_unlock_irq(&chip->reg_lock);
571 return changed;
572}
573
574static const struct snd_kcontrol_new snd_bt87x_capture_volume = {
575 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
576 .name = "Capture Volume",
577 .info = snd_bt87x_capture_volume_info,
578 .get = snd_bt87x_capture_volume_get,
579 .put = snd_bt87x_capture_volume_put,
580};
581
582#define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info
583
584static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol,
585 struct snd_ctl_elem_value *value)
586{
587 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
588
589 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);
590 return 0;
591}
592
593static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol,
594 struct snd_ctl_elem_value *value)
595{
596 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
597 u32 old_control;
598 int changed;
599
600 spin_lock_irq(&chip->reg_lock);
601 old_control = chip->reg_control;
602 chip->reg_control = (chip->reg_control & ~CTL_A_G2X)
603 | (value->value.integer.value[0] ? CTL_A_G2X : 0);
604 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
605 changed = chip->reg_control != old_control;
606 spin_unlock_irq(&chip->reg_lock);
607 return changed;
608}
609
610static const struct snd_kcontrol_new snd_bt87x_capture_boost = {
611 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
612 .name = "Capture Boost",
613 .info = snd_bt87x_capture_boost_info,
614 .get = snd_bt87x_capture_boost_get,
615 .put = snd_bt87x_capture_boost_put,
616};
617
618static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol,
619 struct snd_ctl_elem_info *info)
620{
621 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"};
622
623 return snd_ctl_enum_info(info, 1, 3, texts);
624}
625
626static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol,
627 struct snd_ctl_elem_value *value)
628{
629 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
630
631 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;
632 return 0;
633}
634
635static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol,
636 struct snd_ctl_elem_value *value)
637{
638 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
639 u32 old_control;
640 int changed;
641
642 spin_lock_irq(&chip->reg_lock);
643 old_control = chip->reg_control;
644 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)
645 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);
646 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
647 changed = chip->reg_control != old_control;
648 spin_unlock_irq(&chip->reg_lock);
649 return changed;
650}
651
652static const struct snd_kcontrol_new snd_bt87x_capture_source = {
653 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
654 .name = "Capture Source",
655 .info = snd_bt87x_capture_source_info,
656 .get = snd_bt87x_capture_source_get,
657 .put = snd_bt87x_capture_source_put,
658};
659
660static int snd_bt87x_free(struct snd_bt87x *chip)
661{
662 if (chip->mmio)
663 snd_bt87x_stop(chip);
664 if (chip->irq >= 0)
665 free_irq(chip->irq, chip);
666 iounmap(chip->mmio);
667 pci_release_regions(chip->pci);
668 pci_disable_device(chip->pci);
669 kfree(chip);
670 return 0;
671}
672
673static int snd_bt87x_dev_free(struct snd_device *device)
674{
675 struct snd_bt87x *chip = device->device_data;
676 return snd_bt87x_free(chip);
677}
678
679static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
680{
681 int err;
682 struct snd_pcm *pcm;
683
684 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
685 if (err < 0)
686 return err;
687 pcm->private_data = chip;
688 strcpy(pcm->name, name);
689 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
690 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
691 &chip->pci->dev,
692 128 * 1024,
693 ALIGN(255 * 4092, 1024));
694 return 0;
695}
696
697static int snd_bt87x_create(struct snd_card *card,
698 struct pci_dev *pci,
699 struct snd_bt87x **rchip)
700{
701 struct snd_bt87x *chip;
702 int err;
703 static const struct snd_device_ops ops = {
704 .dev_free = snd_bt87x_dev_free
705 };
706
707 *rchip = NULL;
708
709 err = pci_enable_device(pci);
710 if (err < 0)
711 return err;
712
713 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
714 if (!chip) {
715 pci_disable_device(pci);
716 return -ENOMEM;
717 }
718 chip->card = card;
719 chip->pci = pci;
720 chip->irq = -1;
721 spin_lock_init(&chip->reg_lock);
722
723 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) {
724 kfree(chip);
725 pci_disable_device(pci);
726 return err;
727 }
728 chip->mmio = pci_ioremap_bar(pci, 0);
729 if (!chip->mmio) {
730 dev_err(card->dev, "cannot remap io memory\n");
731 err = -ENOMEM;
732 goto fail;
733 }
734
735 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |
736 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
737 chip->interrupt_mask = MY_INTERRUPTS;
738 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
739 snd_bt87x_writel(chip, REG_INT_MASK, 0);
740 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
741
742 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED,
743 KBUILD_MODNAME, chip);
744 if (err < 0) {
745 dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
746 goto fail;
747 }
748 chip->irq = pci->irq;
749 card->sync_irq = chip->irq;
750 pci_set_master(pci);
751
752 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
753 if (err < 0)
754 goto fail;
755
756 *rchip = chip;
757 return 0;
758
759fail:
760 snd_bt87x_free(chip);
761 return err;
762}
763
764#define BT_DEVICE(chip, subvend, subdev, id) \
765 { .vendor = PCI_VENDOR_ID_BROOKTREE, \
766 .device = chip, \
767 .subvendor = subvend, .subdevice = subdev, \
768 .driver_data = SND_BT87X_BOARD_ ## id }
769/* driver_data is the card id for that device */
770
771static const struct pci_device_id snd_bt87x_ids[] = {
772 /* Hauppauge WinTV series */
773 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),
774 /* Hauppauge WinTV series */
775 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),
776 /* Viewcast Osprey 200 */
777 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),
778 /* Viewcast Osprey 440 (rate is configurable via gpio) */
779 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),
780 /* ATI TV-Wonder */
781 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),
782 /* Leadtek Winfast tv 2000xp delux */
783 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),
784 /* Pinnacle PCTV */
785 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC),
786 /* Voodoo TV 200 */
787 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),
788 /* Askey Computer Corp. MagicTView'99 */
789 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC),
790 /* AVerMedia Studio No. 103, 203, ...? */
791 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),
792 /* Prolink PixelView PV-M4900 */
793 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),
794 /* Pinnacle Studio PCTV rave */
795 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),
796 { }
797};
798MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
799
800/* cards known not to have audio
801 * (DVB cards use the audio function to transfer MPEG data) */
802static struct {
803 unsigned short subvendor, subdevice;
804} denylist[] = {
805 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */
806 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */
807 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */
808 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
809 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */
810 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
811 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */
812 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
813 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
814 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
815 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
816};
817
818static struct pci_driver driver;
819
820/* return the id of the card, or a negative value if it's on the denylist */
821static int snd_bt87x_detect_card(struct pci_dev *pci)
822{
823 int i;
824 const struct pci_device_id *supported;
825
826 supported = pci_match_id(snd_bt87x_ids, pci);
827 if (supported && supported->driver_data > 0)
828 return supported->driver_data;
829
830 for (i = 0; i < ARRAY_SIZE(denylist); ++i)
831 if (denylist[i].subvendor == pci->subsystem_vendor &&
832 denylist[i].subdevice == pci->subsystem_device) {
833 dev_dbg(&pci->dev,
834 "card %#04x-%#04x:%#04x has no audio\n",
835 pci->device, pci->subsystem_vendor, pci->subsystem_device);
836 return -EBUSY;
837 }
838
839 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n",
840 pci->device, pci->subsystem_vendor, pci->subsystem_device);
841 dev_info(&pci->dev, "please mail id, board name, and, "
842 "if it works, the correct digital_rate option to "
843 "<alsa-devel@alsa-project.org>\n");
844 return SND_BT87X_BOARD_UNKNOWN;
845}
846
847static int snd_bt87x_probe(struct pci_dev *pci,
848 const struct pci_device_id *pci_id)
849{
850 static int dev;
851 struct snd_card *card;
852 struct snd_bt87x *chip;
853 int err;
854 enum snd_bt87x_boardid boardid;
855
856 if (!pci_id->driver_data) {
857 err = snd_bt87x_detect_card(pci);
858 if (err < 0)
859 return -ENODEV;
860 boardid = err;
861 } else
862 boardid = pci_id->driver_data;
863
864 if (dev >= SNDRV_CARDS)
865 return -ENODEV;
866 if (!enable[dev]) {
867 ++dev;
868 return -ENOENT;
869 }
870
871 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
872 0, &card);
873 if (err < 0)
874 return err;
875
876 err = snd_bt87x_create(card, pci, &chip);
877 if (err < 0)
878 goto _error;
879
880 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
881
882 if (!chip->board.no_digital) {
883 if (digital_rate[dev] > 0)
884 chip->board.dig_rate = digital_rate[dev];
885
886 chip->reg_control |= chip->board.digital_fmt;
887
888 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
889 if (err < 0)
890 goto _error;
891 }
892 if (!chip->board.no_analog) {
893 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
894 if (err < 0)
895 goto _error;
896 err = snd_ctl_add(card, snd_ctl_new1(
897 &snd_bt87x_capture_volume, chip));
898 if (err < 0)
899 goto _error;
900 err = snd_ctl_add(card, snd_ctl_new1(
901 &snd_bt87x_capture_boost, chip));
902 if (err < 0)
903 goto _error;
904 err = snd_ctl_add(card, snd_ctl_new1(
905 &snd_bt87x_capture_source, chip));
906 if (err < 0)
907 goto _error;
908 }
909 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital "
910 "(rate %d Hz)\n", dev, boardid,
911 chip->board.no_analog ? "no " : "",
912 chip->board.no_digital ? "no " : "", chip->board.dig_rate);
913
914 strcpy(card->driver, "Bt87x");
915 sprintf(card->shortname, "Brooktree Bt%x", pci->device);
916 sprintf(card->longname, "%s at %#llx, irq %i",
917 card->shortname, (unsigned long long)pci_resource_start(pci, 0),
918 chip->irq);
919 strcpy(card->mixername, "Bt87x");
920
921 err = snd_card_register(card);
922 if (err < 0)
923 goto _error;
924
925 pci_set_drvdata(pci, card);
926 ++dev;
927 return 0;
928
929_error:
930 snd_card_free(card);
931 return err;
932}
933
934static void snd_bt87x_remove(struct pci_dev *pci)
935{
936 snd_card_free(pci_get_drvdata(pci));
937}
938
939/* default entries for all Bt87x cards - it's not exported */
940/* driver_data is set to 0 to call detection */
941static const struct pci_device_id snd_bt87x_default_ids[] = {
942 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
943 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
944 { }
945};
946
947static struct pci_driver driver = {
948 .name = KBUILD_MODNAME,
949 .id_table = snd_bt87x_ids,
950 .probe = snd_bt87x_probe,
951 .remove = snd_bt87x_remove,
952};
953
954static int __init alsa_card_bt87x_init(void)
955{
956 if (load_all)
957 driver.id_table = snd_bt87x_default_ids;
958 return pci_register_driver(&driver);
959}
960
961static void __exit alsa_card_bt87x_exit(void)
962{
963 pci_unregister_driver(&driver);
964}
965
966module_init(alsa_card_bt87x_init)
967module_exit(alsa_card_bt87x_exit)
1/*
2 * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA
3 *
4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
5 *
6 * based on btaudio.c by Gerd Knorr <kraxel@bytesex.org>
7 *
8 *
9 * This driver is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This driver is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23
24#include <linux/init.h>
25#include <linux/interrupt.h>
26#include <linux/pci.h>
27#include <linux/slab.h>
28#include <linux/module.h>
29#include <linux/bitops.h>
30#include <linux/io.h>
31#include <sound/core.h>
32#include <sound/pcm.h>
33#include <sound/pcm_params.h>
34#include <sound/control.h>
35#include <sound/initval.h>
36
37MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
38MODULE_DESCRIPTION("Brooktree Bt87x audio driver");
39MODULE_LICENSE("GPL");
40MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878},"
41 "{Brooktree,Bt879}}");
42
43static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
44static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
45static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
46static int digital_rate[SNDRV_CARDS]; /* digital input rate */
47static bool load_all; /* allow to load the non-whitelisted cards */
48
49module_param_array(index, int, NULL, 0444);
50MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
51module_param_array(id, charp, NULL, 0444);
52MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
53module_param_array(enable, bool, NULL, 0444);
54MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
55module_param_array(digital_rate, int, NULL, 0444);
56MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
57module_param(load_all, bool, 0444);
58MODULE_PARM_DESC(load_all, "Allow to load the non-whitelisted cards");
59
60
61/* register offsets */
62#define REG_INT_STAT 0x100 /* interrupt status */
63#define REG_INT_MASK 0x104 /* interrupt mask */
64#define REG_GPIO_DMA_CTL 0x10c /* audio control */
65#define REG_PACKET_LEN 0x110 /* audio packet lengths */
66#define REG_RISC_STRT_ADD 0x114 /* RISC program start address */
67#define REG_RISC_COUNT 0x120 /* RISC program counter */
68
69/* interrupt bits */
70#define INT_OFLOW (1 << 3) /* audio A/D overflow */
71#define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */
72#define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */
73#define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */
74#define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */
75#define INT_PPERR (1 << 15) /* PCI parity error */
76#define INT_RIPERR (1 << 16) /* RISC instruction parity error */
77#define INT_PABORT (1 << 17) /* PCI master or target abort */
78#define INT_OCERR (1 << 18) /* invalid opcode */
79#define INT_SCERR (1 << 19) /* sync counter overflow */
80#define INT_RISC_EN (1 << 27) /* DMA controller running */
81#define INT_RISCS_SHIFT 28 /* RISC status bits */
82
83/* audio control bits */
84#define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */
85#define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */
86#define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */
87#define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */
88#define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */
89#define CTL_ACAP_EN (1 << 4) /* enable audio capture */
90#define CTL_DA_APP (1 << 5) /* GPIO input */
91#define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */
92#define CTL_DA_IOM_DA (1 << 6) /* digital audio input */
93#define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */
94#define CTL_DA_SDR_MASK (0xf<< 8)
95#define CTL_DA_LMT (1 << 12) /* limit audio data values */
96#define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */
97#define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */
98#define CTL_DA_DPM (1 << 15) /* data packet mode */
99#define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */
100#define CTL_DA_MLB (1 << 21) /* MSB/LSB format */
101#define CTL_DA_LRI (1 << 22) /* left/right indication */
102#define CTL_DA_SCE (1 << 23) /* sample clock edge */
103#define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */
104#define CTL_A_SEL_SFM (1 << 24) /* FM audio input */
105#define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */
106#define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */
107#define CTL_A_SEL_SHIFT 24
108#define CTL_A_SEL_MASK (3 << 24)
109#define CTL_A_PWRDN (1 << 26) /* analog audio power-down */
110#define CTL_A_G2X (1 << 27) /* audio gain boost */
111#define CTL_A_GAIN_SHIFT 28 /* audio input gain */
112#define CTL_A_GAIN_MASK (0xf<<28)
113
114/* RISC instruction opcodes */
115#define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */
116#define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */
117#define RISC_SKIP (0x2 << 28) /* skip FIFO data */
118#define RISC_JUMP (0x7 << 28) /* jump to address */
119#define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */
120
121/* RISC instruction bits */
122#define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */
123#define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */
124#define RISC_SET_STATUS_SHIFT 16 /* set status bits */
125#define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */
126#define RISC_IRQ ( 1 << 24) /* interrupt */
127#define RISC_EOL ( 1 << 26) /* end of line */
128#define RISC_SOL ( 1 << 27) /* start of line */
129
130/* SYNC status bits values */
131#define RISC_SYNC_FM1 0x6
132#define RISC_SYNC_VRO 0xc
133
134#define ANALOG_CLOCK 1792000
135#ifdef CONFIG_SND_BT87X_OVERCLOCK
136#define CLOCK_DIV_MIN 1
137#else
138#define CLOCK_DIV_MIN 4
139#endif
140#define CLOCK_DIV_MAX 15
141
142#define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \
143 INT_RIPERR | INT_PABORT | INT_OCERR)
144#define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS)
145
146/* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */
147#define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8)
148
149/* Cards with configuration information */
150enum snd_bt87x_boardid {
151 SND_BT87X_BOARD_UNKNOWN,
152 SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */
153 SND_BT87X_BOARD_ANALOG, /* board with no external A/D */
154 SND_BT87X_BOARD_OSPREY2x0,
155 SND_BT87X_BOARD_OSPREY440,
156 SND_BT87X_BOARD_AVPHONE98,
157};
158
159/* Card configuration */
160struct snd_bt87x_board {
161 int dig_rate; /* Digital input sampling rate */
162 u32 digital_fmt; /* Register settings for digital input */
163 unsigned no_analog:1; /* No analog input */
164 unsigned no_digital:1; /* No digital input */
165};
166
167static struct snd_bt87x_board snd_bt87x_boards[] = {
168 [SND_BT87X_BOARD_UNKNOWN] = {
169 .dig_rate = 32000, /* just a guess */
170 },
171 [SND_BT87X_BOARD_GENERIC] = {
172 .dig_rate = 32000,
173 },
174 [SND_BT87X_BOARD_ANALOG] = {
175 .no_digital = 1,
176 },
177 [SND_BT87X_BOARD_OSPREY2x0] = {
178 .dig_rate = 44100,
179 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
180 },
181 [SND_BT87X_BOARD_OSPREY440] = {
182 .dig_rate = 32000,
183 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
184 .no_analog = 1,
185 },
186 [SND_BT87X_BOARD_AVPHONE98] = {
187 .dig_rate = 48000,
188 },
189};
190
191struct snd_bt87x {
192 struct snd_card *card;
193 struct pci_dev *pci;
194 struct snd_bt87x_board board;
195
196 void __iomem *mmio;
197 int irq;
198
199 spinlock_t reg_lock;
200 unsigned long opened;
201 struct snd_pcm_substream *substream;
202
203 struct snd_dma_buffer dma_risc;
204 unsigned int line_bytes;
205 unsigned int lines;
206
207 u32 reg_control;
208 u32 interrupt_mask;
209
210 int current_line;
211
212 int pci_parity_errors;
213};
214
215enum { DEVICE_DIGITAL, DEVICE_ANALOG };
216
217static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg)
218{
219 return readl(chip->mmio + reg);
220}
221
222static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)
223{
224 writel(value, chip->mmio + reg);
225}
226
227static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream,
228 unsigned int periods, unsigned int period_bytes)
229{
230 unsigned int i, offset;
231 u32 *risc;
232
233 if (chip->dma_risc.area == NULL) {
234 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
235 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0)
236 return -ENOMEM;
237 }
238 risc = (u32 *)chip->dma_risc.area;
239 offset = 0;
240 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1);
241 *risc++ = cpu_to_le32(0);
242 for (i = 0; i < periods; ++i) {
243 u32 rest;
244
245 rest = period_bytes;
246 do {
247 u32 cmd, len;
248 unsigned int addr;
249
250 len = PAGE_SIZE - (offset % PAGE_SIZE);
251 if (len > rest)
252 len = rest;
253 cmd = RISC_WRITE | len;
254 if (rest == period_bytes) {
255 u32 block = i * 16 / periods;
256 cmd |= RISC_SOL;
257 cmd |= block << RISC_SET_STATUS_SHIFT;
258 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT;
259 }
260 if (len == rest)
261 cmd |= RISC_EOL | RISC_IRQ;
262 *risc++ = cpu_to_le32(cmd);
263 addr = snd_pcm_sgbuf_get_addr(substream, offset);
264 *risc++ = cpu_to_le32(addr);
265 offset += len;
266 rest -= len;
267 } while (rest > 0);
268 }
269 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO);
270 *risc++ = cpu_to_le32(0);
271 *risc++ = cpu_to_le32(RISC_JUMP);
272 *risc++ = cpu_to_le32(chip->dma_risc.addr);
273 chip->line_bytes = period_bytes;
274 chip->lines = periods;
275 return 0;
276}
277
278static void snd_bt87x_free_risc(struct snd_bt87x *chip)
279{
280 if (chip->dma_risc.area) {
281 snd_dma_free_pages(&chip->dma_risc);
282 chip->dma_risc.area = NULL;
283 }
284}
285
286static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status)
287{
288 u16 pci_status;
289
290 pci_read_config_word(chip->pci, PCI_STATUS, &pci_status);
291 pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT |
292 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT |
293 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY;
294 pci_write_config_word(chip->pci, PCI_STATUS, pci_status);
295 if (pci_status != PCI_STATUS_DETECTED_PARITY)
296 dev_err(chip->card->dev,
297 "Aieee - PCI error! status %#08x, PCI status %#04x\n",
298 status & ERROR_INTERRUPTS, pci_status);
299 else {
300 dev_err(chip->card->dev,
301 "Aieee - PCI parity error detected!\n");
302 /* error 'handling' similar to aic7xxx_pci.c: */
303 chip->pci_parity_errors++;
304 if (chip->pci_parity_errors > 20) {
305 dev_err(chip->card->dev,
306 "Too many PCI parity errors observed.\n");
307 dev_err(chip->card->dev,
308 "Some device on this bus is generating bad parity.\n");
309 dev_err(chip->card->dev,
310 "This is an error *observed by*, not *generated by*, this card.\n");
311 dev_err(chip->card->dev,
312 "PCI parity error checking has been disabled.\n");
313 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);
314 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
315 }
316 }
317}
318
319static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
320{
321 struct snd_bt87x *chip = dev_id;
322 unsigned int status, irq_status;
323
324 status = snd_bt87x_readl(chip, REG_INT_STAT);
325 irq_status = status & chip->interrupt_mask;
326 if (!irq_status)
327 return IRQ_NONE;
328 snd_bt87x_writel(chip, REG_INT_STAT, irq_status);
329
330 if (irq_status & ERROR_INTERRUPTS) {
331 if (irq_status & (INT_FBUS | INT_FTRGT))
332 dev_warn(chip->card->dev,
333 "FIFO overrun, status %#08x\n", status);
334 if (irq_status & INT_OCERR)
335 dev_err(chip->card->dev,
336 "internal RISC error, status %#08x\n", status);
337 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT))
338 snd_bt87x_pci_error(chip, irq_status);
339 }
340 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {
341 int current_block, irq_block;
342
343 /* assume that exactly one line has been recorded */
344 chip->current_line = (chip->current_line + 1) % chip->lines;
345 /* but check if some interrupts have been skipped */
346 current_block = chip->current_line * 16 / chip->lines;
347 irq_block = status >> INT_RISCS_SHIFT;
348 if (current_block != irq_block)
349 chip->current_line = (irq_block * chip->lines + 15) / 16;
350
351 snd_pcm_period_elapsed(chip->substream);
352 }
353 return IRQ_HANDLED;
354}
355
356static const struct snd_pcm_hardware snd_bt87x_digital_hw = {
357 .info = SNDRV_PCM_INFO_MMAP |
358 SNDRV_PCM_INFO_INTERLEAVED |
359 SNDRV_PCM_INFO_BLOCK_TRANSFER |
360 SNDRV_PCM_INFO_MMAP_VALID |
361 SNDRV_PCM_INFO_BATCH,
362 .formats = SNDRV_PCM_FMTBIT_S16_LE,
363 .rates = 0, /* set at runtime */
364 .channels_min = 2,
365 .channels_max = 2,
366 .buffer_bytes_max = 255 * 4092,
367 .period_bytes_min = 32,
368 .period_bytes_max = 4092,
369 .periods_min = 2,
370 .periods_max = 255,
371};
372
373static const struct snd_pcm_hardware snd_bt87x_analog_hw = {
374 .info = SNDRV_PCM_INFO_MMAP |
375 SNDRV_PCM_INFO_INTERLEAVED |
376 SNDRV_PCM_INFO_BLOCK_TRANSFER |
377 SNDRV_PCM_INFO_MMAP_VALID |
378 SNDRV_PCM_INFO_BATCH,
379 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
380 .rates = SNDRV_PCM_RATE_KNOT,
381 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,
382 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN,
383 .channels_min = 1,
384 .channels_max = 1,
385 .buffer_bytes_max = 255 * 4092,
386 .period_bytes_min = 32,
387 .period_bytes_max = 4092,
388 .periods_min = 2,
389 .periods_max = 255,
390};
391
392static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
393{
394 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN;
395 runtime->hw = snd_bt87x_digital_hw;
396 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);
397 runtime->hw.rate_min = chip->board.dig_rate;
398 runtime->hw.rate_max = chip->board.dig_rate;
399 return 0;
400}
401
402static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
403{
404 static const struct snd_ratnum analog_clock = {
405 .num = ANALOG_CLOCK,
406 .den_min = CLOCK_DIV_MIN,
407 .den_max = CLOCK_DIV_MAX,
408 .den_step = 1
409 };
410 static const struct snd_pcm_hw_constraint_ratnums constraint_rates = {
411 .nrats = 1,
412 .rats = &analog_clock
413 };
414
415 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN);
416 runtime->hw = snd_bt87x_analog_hw;
417 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
418 &constraint_rates);
419}
420
421static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream)
422{
423 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
424 struct snd_pcm_runtime *runtime = substream->runtime;
425 int err;
426
427 if (test_and_set_bit(0, &chip->opened))
428 return -EBUSY;
429
430 if (substream->pcm->device == DEVICE_DIGITAL)
431 err = snd_bt87x_set_digital_hw(chip, runtime);
432 else
433 err = snd_bt87x_set_analog_hw(chip, runtime);
434 if (err < 0)
435 goto _error;
436
437 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
438 if (err < 0)
439 goto _error;
440
441 chip->substream = substream;
442 return 0;
443
444_error:
445 clear_bit(0, &chip->opened);
446 smp_mb__after_atomic();
447 return err;
448}
449
450static int snd_bt87x_close(struct snd_pcm_substream *substream)
451{
452 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
453
454 spin_lock_irq(&chip->reg_lock);
455 chip->reg_control |= CTL_A_PWRDN;
456 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
457 spin_unlock_irq(&chip->reg_lock);
458
459 chip->substream = NULL;
460 clear_bit(0, &chip->opened);
461 smp_mb__after_atomic();
462 return 0;
463}
464
465static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,
466 struct snd_pcm_hw_params *hw_params)
467{
468 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
469 int err;
470
471 err = snd_pcm_lib_malloc_pages(substream,
472 params_buffer_bytes(hw_params));
473 if (err < 0)
474 return err;
475 return snd_bt87x_create_risc(chip, substream,
476 params_periods(hw_params),
477 params_period_bytes(hw_params));
478}
479
480static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)
481{
482 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
483
484 snd_bt87x_free_risc(chip);
485 snd_pcm_lib_free_pages(substream);
486 return 0;
487}
488
489static int snd_bt87x_prepare(struct snd_pcm_substream *substream)
490{
491 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
492 struct snd_pcm_runtime *runtime = substream->runtime;
493 int decimation;
494
495 spin_lock_irq(&chip->reg_lock);
496 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);
497 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;
498 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;
499 if (runtime->format == SNDRV_PCM_FORMAT_S8)
500 chip->reg_control |= CTL_DA_SBR;
501 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
502 spin_unlock_irq(&chip->reg_lock);
503 return 0;
504}
505
506static int snd_bt87x_start(struct snd_bt87x *chip)
507{
508 spin_lock(&chip->reg_lock);
509 chip->current_line = 0;
510 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;
511 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);
512 snd_bt87x_writel(chip, REG_PACKET_LEN,
513 chip->line_bytes | (chip->lines << 16));
514 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
515 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
516 spin_unlock(&chip->reg_lock);
517 return 0;
518}
519
520static int snd_bt87x_stop(struct snd_bt87x *chip)
521{
522 spin_lock(&chip->reg_lock);
523 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);
524 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
525 snd_bt87x_writel(chip, REG_INT_MASK, 0);
526 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
527 spin_unlock(&chip->reg_lock);
528 return 0;
529}
530
531static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd)
532{
533 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
534
535 switch (cmd) {
536 case SNDRV_PCM_TRIGGER_START:
537 return snd_bt87x_start(chip);
538 case SNDRV_PCM_TRIGGER_STOP:
539 return snd_bt87x_stop(chip);
540 default:
541 return -EINVAL;
542 }
543}
544
545static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)
546{
547 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
548 struct snd_pcm_runtime *runtime = substream->runtime;
549
550 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);
551}
552
553static const struct snd_pcm_ops snd_bt87x_pcm_ops = {
554 .open = snd_bt87x_pcm_open,
555 .close = snd_bt87x_close,
556 .ioctl = snd_pcm_lib_ioctl,
557 .hw_params = snd_bt87x_hw_params,
558 .hw_free = snd_bt87x_hw_free,
559 .prepare = snd_bt87x_prepare,
560 .trigger = snd_bt87x_trigger,
561 .pointer = snd_bt87x_pointer,
562 .page = snd_pcm_sgbuf_ops_page,
563};
564
565static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol,
566 struct snd_ctl_elem_info *info)
567{
568 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
569 info->count = 1;
570 info->value.integer.min = 0;
571 info->value.integer.max = 15;
572 return 0;
573}
574
575static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol,
576 struct snd_ctl_elem_value *value)
577{
578 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
579
580 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;
581 return 0;
582}
583
584static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol,
585 struct snd_ctl_elem_value *value)
586{
587 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
588 u32 old_control;
589 int changed;
590
591 spin_lock_irq(&chip->reg_lock);
592 old_control = chip->reg_control;
593 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)
594 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);
595 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
596 changed = old_control != chip->reg_control;
597 spin_unlock_irq(&chip->reg_lock);
598 return changed;
599}
600
601static const struct snd_kcontrol_new snd_bt87x_capture_volume = {
602 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
603 .name = "Capture Volume",
604 .info = snd_bt87x_capture_volume_info,
605 .get = snd_bt87x_capture_volume_get,
606 .put = snd_bt87x_capture_volume_put,
607};
608
609#define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info
610
611static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol,
612 struct snd_ctl_elem_value *value)
613{
614 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
615
616 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);
617 return 0;
618}
619
620static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol,
621 struct snd_ctl_elem_value *value)
622{
623 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
624 u32 old_control;
625 int changed;
626
627 spin_lock_irq(&chip->reg_lock);
628 old_control = chip->reg_control;
629 chip->reg_control = (chip->reg_control & ~CTL_A_G2X)
630 | (value->value.integer.value[0] ? CTL_A_G2X : 0);
631 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
632 changed = chip->reg_control != old_control;
633 spin_unlock_irq(&chip->reg_lock);
634 return changed;
635}
636
637static const struct snd_kcontrol_new snd_bt87x_capture_boost = {
638 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
639 .name = "Capture Boost",
640 .info = snd_bt87x_capture_boost_info,
641 .get = snd_bt87x_capture_boost_get,
642 .put = snd_bt87x_capture_boost_put,
643};
644
645static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol,
646 struct snd_ctl_elem_info *info)
647{
648 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"};
649
650 return snd_ctl_enum_info(info, 1, 3, texts);
651}
652
653static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol,
654 struct snd_ctl_elem_value *value)
655{
656 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
657
658 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;
659 return 0;
660}
661
662static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol,
663 struct snd_ctl_elem_value *value)
664{
665 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
666 u32 old_control;
667 int changed;
668
669 spin_lock_irq(&chip->reg_lock);
670 old_control = chip->reg_control;
671 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)
672 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);
673 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
674 changed = chip->reg_control != old_control;
675 spin_unlock_irq(&chip->reg_lock);
676 return changed;
677}
678
679static const struct snd_kcontrol_new snd_bt87x_capture_source = {
680 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
681 .name = "Capture Source",
682 .info = snd_bt87x_capture_source_info,
683 .get = snd_bt87x_capture_source_get,
684 .put = snd_bt87x_capture_source_put,
685};
686
687static int snd_bt87x_free(struct snd_bt87x *chip)
688{
689 if (chip->mmio)
690 snd_bt87x_stop(chip);
691 if (chip->irq >= 0)
692 free_irq(chip->irq, chip);
693 iounmap(chip->mmio);
694 pci_release_regions(chip->pci);
695 pci_disable_device(chip->pci);
696 kfree(chip);
697 return 0;
698}
699
700static int snd_bt87x_dev_free(struct snd_device *device)
701{
702 struct snd_bt87x *chip = device->device_data;
703 return snd_bt87x_free(chip);
704}
705
706static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
707{
708 int err;
709 struct snd_pcm *pcm;
710
711 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
712 if (err < 0)
713 return err;
714 pcm->private_data = chip;
715 strcpy(pcm->name, name);
716 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
717 return snd_pcm_lib_preallocate_pages_for_all(pcm,
718 SNDRV_DMA_TYPE_DEV_SG,
719 snd_dma_pci_data(chip->pci),
720 128 * 1024,
721 ALIGN(255 * 4092, 1024));
722}
723
724static int snd_bt87x_create(struct snd_card *card,
725 struct pci_dev *pci,
726 struct snd_bt87x **rchip)
727{
728 struct snd_bt87x *chip;
729 int err;
730 static struct snd_device_ops ops = {
731 .dev_free = snd_bt87x_dev_free
732 };
733
734 *rchip = NULL;
735
736 err = pci_enable_device(pci);
737 if (err < 0)
738 return err;
739
740 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
741 if (!chip) {
742 pci_disable_device(pci);
743 return -ENOMEM;
744 }
745 chip->card = card;
746 chip->pci = pci;
747 chip->irq = -1;
748 spin_lock_init(&chip->reg_lock);
749
750 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) {
751 kfree(chip);
752 pci_disable_device(pci);
753 return err;
754 }
755 chip->mmio = pci_ioremap_bar(pci, 0);
756 if (!chip->mmio) {
757 dev_err(card->dev, "cannot remap io memory\n");
758 err = -ENOMEM;
759 goto fail;
760 }
761
762 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |
763 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
764 chip->interrupt_mask = MY_INTERRUPTS;
765 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
766 snd_bt87x_writel(chip, REG_INT_MASK, 0);
767 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
768
769 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED,
770 KBUILD_MODNAME, chip);
771 if (err < 0) {
772 dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
773 goto fail;
774 }
775 chip->irq = pci->irq;
776 pci_set_master(pci);
777 synchronize_irq(chip->irq);
778
779 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
780 if (err < 0)
781 goto fail;
782
783 *rchip = chip;
784 return 0;
785
786fail:
787 snd_bt87x_free(chip);
788 return err;
789}
790
791#define BT_DEVICE(chip, subvend, subdev, id) \
792 { .vendor = PCI_VENDOR_ID_BROOKTREE, \
793 .device = chip, \
794 .subvendor = subvend, .subdevice = subdev, \
795 .driver_data = SND_BT87X_BOARD_ ## id }
796/* driver_data is the card id for that device */
797
798static const struct pci_device_id snd_bt87x_ids[] = {
799 /* Hauppauge WinTV series */
800 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),
801 /* Hauppauge WinTV series */
802 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),
803 /* Viewcast Osprey 200 */
804 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),
805 /* Viewcast Osprey 440 (rate is configurable via gpio) */
806 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),
807 /* ATI TV-Wonder */
808 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),
809 /* Leadtek Winfast tv 2000xp delux */
810 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),
811 /* Pinnacle PCTV */
812 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC),
813 /* Voodoo TV 200 */
814 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),
815 /* Askey Computer Corp. MagicTView'99 */
816 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC),
817 /* AVerMedia Studio No. 103, 203, ...? */
818 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),
819 /* Prolink PixelView PV-M4900 */
820 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),
821 /* Pinnacle Studio PCTV rave */
822 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),
823 { }
824};
825MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
826
827/* cards known not to have audio
828 * (DVB cards use the audio function to transfer MPEG data) */
829static struct {
830 unsigned short subvendor, subdevice;
831} blacklist[] = {
832 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */
833 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */
834 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */
835 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
836 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */
837 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
838 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */
839 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
840 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
841 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
842 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
843};
844
845static struct pci_driver driver;
846
847/* return the id of the card, or a negative value if it's blacklisted */
848static int snd_bt87x_detect_card(struct pci_dev *pci)
849{
850 int i;
851 const struct pci_device_id *supported;
852
853 supported = pci_match_id(snd_bt87x_ids, pci);
854 if (supported && supported->driver_data > 0)
855 return supported->driver_data;
856
857 for (i = 0; i < ARRAY_SIZE(blacklist); ++i)
858 if (blacklist[i].subvendor == pci->subsystem_vendor &&
859 blacklist[i].subdevice == pci->subsystem_device) {
860 dev_dbg(&pci->dev,
861 "card %#04x-%#04x:%#04x has no audio\n",
862 pci->device, pci->subsystem_vendor, pci->subsystem_device);
863 return -EBUSY;
864 }
865
866 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n",
867 pci->device, pci->subsystem_vendor, pci->subsystem_device);
868 dev_info(&pci->dev, "please mail id, board name, and, "
869 "if it works, the correct digital_rate option to "
870 "<alsa-devel@alsa-project.org>\n");
871 return SND_BT87X_BOARD_UNKNOWN;
872}
873
874static int snd_bt87x_probe(struct pci_dev *pci,
875 const struct pci_device_id *pci_id)
876{
877 static int dev;
878 struct snd_card *card;
879 struct snd_bt87x *chip;
880 int err;
881 enum snd_bt87x_boardid boardid;
882
883 if (!pci_id->driver_data) {
884 err = snd_bt87x_detect_card(pci);
885 if (err < 0)
886 return -ENODEV;
887 boardid = err;
888 } else
889 boardid = pci_id->driver_data;
890
891 if (dev >= SNDRV_CARDS)
892 return -ENODEV;
893 if (!enable[dev]) {
894 ++dev;
895 return -ENOENT;
896 }
897
898 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
899 0, &card);
900 if (err < 0)
901 return err;
902
903 err = snd_bt87x_create(card, pci, &chip);
904 if (err < 0)
905 goto _error;
906
907 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
908
909 if (!chip->board.no_digital) {
910 if (digital_rate[dev] > 0)
911 chip->board.dig_rate = digital_rate[dev];
912
913 chip->reg_control |= chip->board.digital_fmt;
914
915 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
916 if (err < 0)
917 goto _error;
918 }
919 if (!chip->board.no_analog) {
920 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
921 if (err < 0)
922 goto _error;
923 err = snd_ctl_add(card, snd_ctl_new1(
924 &snd_bt87x_capture_volume, chip));
925 if (err < 0)
926 goto _error;
927 err = snd_ctl_add(card, snd_ctl_new1(
928 &snd_bt87x_capture_boost, chip));
929 if (err < 0)
930 goto _error;
931 err = snd_ctl_add(card, snd_ctl_new1(
932 &snd_bt87x_capture_source, chip));
933 if (err < 0)
934 goto _error;
935 }
936 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital "
937 "(rate %d Hz)\n", dev, boardid,
938 chip->board.no_analog ? "no " : "",
939 chip->board.no_digital ? "no " : "", chip->board.dig_rate);
940
941 strcpy(card->driver, "Bt87x");
942 sprintf(card->shortname, "Brooktree Bt%x", pci->device);
943 sprintf(card->longname, "%s at %#llx, irq %i",
944 card->shortname, (unsigned long long)pci_resource_start(pci, 0),
945 chip->irq);
946 strcpy(card->mixername, "Bt87x");
947
948 err = snd_card_register(card);
949 if (err < 0)
950 goto _error;
951
952 pci_set_drvdata(pci, card);
953 ++dev;
954 return 0;
955
956_error:
957 snd_card_free(card);
958 return err;
959}
960
961static void snd_bt87x_remove(struct pci_dev *pci)
962{
963 snd_card_free(pci_get_drvdata(pci));
964}
965
966/* default entries for all Bt87x cards - it's not exported */
967/* driver_data is set to 0 to call detection */
968static const struct pci_device_id snd_bt87x_default_ids[] = {
969 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
970 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
971 { }
972};
973
974static struct pci_driver driver = {
975 .name = KBUILD_MODNAME,
976 .id_table = snd_bt87x_ids,
977 .probe = snd_bt87x_probe,
978 .remove = snd_bt87x_remove,
979};
980
981static int __init alsa_card_bt87x_init(void)
982{
983 if (load_all)
984 driver.id_table = snd_bt87x_default_ids;
985 return pci_register_driver(&driver);
986}
987
988static void __exit alsa_card_bt87x_exit(void)
989{
990 pci_unregister_driver(&driver);
991}
992
993module_init(alsa_card_bt87x_init)
994module_exit(alsa_card_bt87x_exit)