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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// 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 the non-whitelisted cards */
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 the non-whitelisted cards");
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 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, snd_dma_pci_data(chip->pci),
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 u16 pci_status;
275
276 pci_read_config_word(chip->pci, PCI_STATUS, &pci_status);
277 pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT |
278 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT |
279 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY;
280 pci_write_config_word(chip->pci, PCI_STATUS, pci_status);
281 if (pci_status != PCI_STATUS_DETECTED_PARITY)
282 dev_err(chip->card->dev,
283 "Aieee - PCI error! status %#08x, PCI status %#04x\n",
284 status & ERROR_INTERRUPTS, pci_status);
285 else {
286 dev_err(chip->card->dev,
287 "Aieee - PCI parity error detected!\n");
288 /* error 'handling' similar to aic7xxx_pci.c: */
289 chip->pci_parity_errors++;
290 if (chip->pci_parity_errors > 20) {
291 dev_err(chip->card->dev,
292 "Too many PCI parity errors observed.\n");
293 dev_err(chip->card->dev,
294 "Some device on this bus is generating bad parity.\n");
295 dev_err(chip->card->dev,
296 "This is an error *observed by*, not *generated by*, this card.\n");
297 dev_err(chip->card->dev,
298 "PCI parity error checking has been disabled.\n");
299 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);
300 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
301 }
302 }
303}
304
305static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
306{
307 struct snd_bt87x *chip = dev_id;
308 unsigned int status, irq_status;
309
310 status = snd_bt87x_readl(chip, REG_INT_STAT);
311 irq_status = status & chip->interrupt_mask;
312 if (!irq_status)
313 return IRQ_NONE;
314 snd_bt87x_writel(chip, REG_INT_STAT, irq_status);
315
316 if (irq_status & ERROR_INTERRUPTS) {
317 if (irq_status & (INT_FBUS | INT_FTRGT))
318 dev_warn(chip->card->dev,
319 "FIFO overrun, status %#08x\n", status);
320 if (irq_status & INT_OCERR)
321 dev_err(chip->card->dev,
322 "internal RISC error, status %#08x\n", status);
323 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT))
324 snd_bt87x_pci_error(chip, irq_status);
325 }
326 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {
327 int current_block, irq_block;
328
329 /* assume that exactly one line has been recorded */
330 chip->current_line = (chip->current_line + 1) % chip->lines;
331 /* but check if some interrupts have been skipped */
332 current_block = chip->current_line * 16 / chip->lines;
333 irq_block = status >> INT_RISCS_SHIFT;
334 if (current_block != irq_block)
335 chip->current_line = (irq_block * chip->lines + 15) / 16;
336
337 snd_pcm_period_elapsed(chip->substream);
338 }
339 return IRQ_HANDLED;
340}
341
342static const struct snd_pcm_hardware snd_bt87x_digital_hw = {
343 .info = SNDRV_PCM_INFO_MMAP |
344 SNDRV_PCM_INFO_INTERLEAVED |
345 SNDRV_PCM_INFO_BLOCK_TRANSFER |
346 SNDRV_PCM_INFO_MMAP_VALID |
347 SNDRV_PCM_INFO_BATCH,
348 .formats = SNDRV_PCM_FMTBIT_S16_LE,
349 .rates = 0, /* set at runtime */
350 .channels_min = 2,
351 .channels_max = 2,
352 .buffer_bytes_max = 255 * 4092,
353 .period_bytes_min = 32,
354 .period_bytes_max = 4092,
355 .periods_min = 2,
356 .periods_max = 255,
357};
358
359static const struct snd_pcm_hardware snd_bt87x_analog_hw = {
360 .info = SNDRV_PCM_INFO_MMAP |
361 SNDRV_PCM_INFO_INTERLEAVED |
362 SNDRV_PCM_INFO_BLOCK_TRANSFER |
363 SNDRV_PCM_INFO_MMAP_VALID |
364 SNDRV_PCM_INFO_BATCH,
365 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
366 .rates = SNDRV_PCM_RATE_KNOT,
367 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,
368 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN,
369 .channels_min = 1,
370 .channels_max = 1,
371 .buffer_bytes_max = 255 * 4092,
372 .period_bytes_min = 32,
373 .period_bytes_max = 4092,
374 .periods_min = 2,
375 .periods_max = 255,
376};
377
378static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
379{
380 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN;
381 runtime->hw = snd_bt87x_digital_hw;
382 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);
383 runtime->hw.rate_min = chip->board.dig_rate;
384 runtime->hw.rate_max = chip->board.dig_rate;
385 return 0;
386}
387
388static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
389{
390 static const struct snd_ratnum analog_clock = {
391 .num = ANALOG_CLOCK,
392 .den_min = CLOCK_DIV_MIN,
393 .den_max = CLOCK_DIV_MAX,
394 .den_step = 1
395 };
396 static const struct snd_pcm_hw_constraint_ratnums constraint_rates = {
397 .nrats = 1,
398 .rats = &analog_clock
399 };
400
401 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN);
402 runtime->hw = snd_bt87x_analog_hw;
403 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
404 &constraint_rates);
405}
406
407static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream)
408{
409 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
410 struct snd_pcm_runtime *runtime = substream->runtime;
411 int err;
412
413 if (test_and_set_bit(0, &chip->opened))
414 return -EBUSY;
415
416 if (substream->pcm->device == DEVICE_DIGITAL)
417 err = snd_bt87x_set_digital_hw(chip, runtime);
418 else
419 err = snd_bt87x_set_analog_hw(chip, runtime);
420 if (err < 0)
421 goto _error;
422
423 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
424 if (err < 0)
425 goto _error;
426
427 chip->substream = substream;
428 return 0;
429
430_error:
431 clear_bit(0, &chip->opened);
432 smp_mb__after_atomic();
433 return err;
434}
435
436static int snd_bt87x_close(struct snd_pcm_substream *substream)
437{
438 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
439
440 spin_lock_irq(&chip->reg_lock);
441 chip->reg_control |= CTL_A_PWRDN;
442 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
443 spin_unlock_irq(&chip->reg_lock);
444
445 chip->substream = NULL;
446 clear_bit(0, &chip->opened);
447 smp_mb__after_atomic();
448 return 0;
449}
450
451static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,
452 struct snd_pcm_hw_params *hw_params)
453{
454 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
455 int err;
456
457 err = snd_pcm_lib_malloc_pages(substream,
458 params_buffer_bytes(hw_params));
459 if (err < 0)
460 return err;
461 return snd_bt87x_create_risc(chip, substream,
462 params_periods(hw_params),
463 params_period_bytes(hw_params));
464}
465
466static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)
467{
468 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
469
470 snd_bt87x_free_risc(chip);
471 snd_pcm_lib_free_pages(substream);
472 return 0;
473}
474
475static int snd_bt87x_prepare(struct snd_pcm_substream *substream)
476{
477 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
478 struct snd_pcm_runtime *runtime = substream->runtime;
479 int decimation;
480
481 spin_lock_irq(&chip->reg_lock);
482 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);
483 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;
484 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;
485 if (runtime->format == SNDRV_PCM_FORMAT_S8)
486 chip->reg_control |= CTL_DA_SBR;
487 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
488 spin_unlock_irq(&chip->reg_lock);
489 return 0;
490}
491
492static int snd_bt87x_start(struct snd_bt87x *chip)
493{
494 spin_lock(&chip->reg_lock);
495 chip->current_line = 0;
496 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;
497 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);
498 snd_bt87x_writel(chip, REG_PACKET_LEN,
499 chip->line_bytes | (chip->lines << 16));
500 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
501 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
502 spin_unlock(&chip->reg_lock);
503 return 0;
504}
505
506static int snd_bt87x_stop(struct snd_bt87x *chip)
507{
508 spin_lock(&chip->reg_lock);
509 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);
510 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
511 snd_bt87x_writel(chip, REG_INT_MASK, 0);
512 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
513 spin_unlock(&chip->reg_lock);
514 return 0;
515}
516
517static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd)
518{
519 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
520
521 switch (cmd) {
522 case SNDRV_PCM_TRIGGER_START:
523 return snd_bt87x_start(chip);
524 case SNDRV_PCM_TRIGGER_STOP:
525 return snd_bt87x_stop(chip);
526 default:
527 return -EINVAL;
528 }
529}
530
531static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)
532{
533 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
534 struct snd_pcm_runtime *runtime = substream->runtime;
535
536 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);
537}
538
539static const struct snd_pcm_ops snd_bt87x_pcm_ops = {
540 .open = snd_bt87x_pcm_open,
541 .close = snd_bt87x_close,
542 .ioctl = snd_pcm_lib_ioctl,
543 .hw_params = snd_bt87x_hw_params,
544 .hw_free = snd_bt87x_hw_free,
545 .prepare = snd_bt87x_prepare,
546 .trigger = snd_bt87x_trigger,
547 .pointer = snd_bt87x_pointer,
548 .page = snd_pcm_sgbuf_ops_page,
549};
550
551static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol,
552 struct snd_ctl_elem_info *info)
553{
554 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
555 info->count = 1;
556 info->value.integer.min = 0;
557 info->value.integer.max = 15;
558 return 0;
559}
560
561static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol,
562 struct snd_ctl_elem_value *value)
563{
564 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
565
566 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;
567 return 0;
568}
569
570static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol,
571 struct snd_ctl_elem_value *value)
572{
573 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
574 u32 old_control;
575 int changed;
576
577 spin_lock_irq(&chip->reg_lock);
578 old_control = chip->reg_control;
579 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)
580 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);
581 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
582 changed = old_control != chip->reg_control;
583 spin_unlock_irq(&chip->reg_lock);
584 return changed;
585}
586
587static const struct snd_kcontrol_new snd_bt87x_capture_volume = {
588 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
589 .name = "Capture Volume",
590 .info = snd_bt87x_capture_volume_info,
591 .get = snd_bt87x_capture_volume_get,
592 .put = snd_bt87x_capture_volume_put,
593};
594
595#define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info
596
597static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol,
598 struct snd_ctl_elem_value *value)
599{
600 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
601
602 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);
603 return 0;
604}
605
606static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol,
607 struct snd_ctl_elem_value *value)
608{
609 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
610 u32 old_control;
611 int changed;
612
613 spin_lock_irq(&chip->reg_lock);
614 old_control = chip->reg_control;
615 chip->reg_control = (chip->reg_control & ~CTL_A_G2X)
616 | (value->value.integer.value[0] ? CTL_A_G2X : 0);
617 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
618 changed = chip->reg_control != old_control;
619 spin_unlock_irq(&chip->reg_lock);
620 return changed;
621}
622
623static const struct snd_kcontrol_new snd_bt87x_capture_boost = {
624 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
625 .name = "Capture Boost",
626 .info = snd_bt87x_capture_boost_info,
627 .get = snd_bt87x_capture_boost_get,
628 .put = snd_bt87x_capture_boost_put,
629};
630
631static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol,
632 struct snd_ctl_elem_info *info)
633{
634 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"};
635
636 return snd_ctl_enum_info(info, 1, 3, texts);
637}
638
639static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol,
640 struct snd_ctl_elem_value *value)
641{
642 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
643
644 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;
645 return 0;
646}
647
648static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol,
649 struct snd_ctl_elem_value *value)
650{
651 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
652 u32 old_control;
653 int changed;
654
655 spin_lock_irq(&chip->reg_lock);
656 old_control = chip->reg_control;
657 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)
658 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);
659 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
660 changed = chip->reg_control != old_control;
661 spin_unlock_irq(&chip->reg_lock);
662 return changed;
663}
664
665static const struct snd_kcontrol_new snd_bt87x_capture_source = {
666 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
667 .name = "Capture Source",
668 .info = snd_bt87x_capture_source_info,
669 .get = snd_bt87x_capture_source_get,
670 .put = snd_bt87x_capture_source_put,
671};
672
673static int snd_bt87x_free(struct snd_bt87x *chip)
674{
675 if (chip->mmio)
676 snd_bt87x_stop(chip);
677 if (chip->irq >= 0)
678 free_irq(chip->irq, chip);
679 iounmap(chip->mmio);
680 pci_release_regions(chip->pci);
681 pci_disable_device(chip->pci);
682 kfree(chip);
683 return 0;
684}
685
686static int snd_bt87x_dev_free(struct snd_device *device)
687{
688 struct snd_bt87x *chip = device->device_data;
689 return snd_bt87x_free(chip);
690}
691
692static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
693{
694 int err;
695 struct snd_pcm *pcm;
696
697 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
698 if (err < 0)
699 return err;
700 pcm->private_data = chip;
701 strcpy(pcm->name, name);
702 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
703 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
704 snd_dma_pci_data(chip->pci),
705 128 * 1024,
706 ALIGN(255 * 4092, 1024));
707 return 0;
708}
709
710static int snd_bt87x_create(struct snd_card *card,
711 struct pci_dev *pci,
712 struct snd_bt87x **rchip)
713{
714 struct snd_bt87x *chip;
715 int err;
716 static struct snd_device_ops ops = {
717 .dev_free = snd_bt87x_dev_free
718 };
719
720 *rchip = NULL;
721
722 err = pci_enable_device(pci);
723 if (err < 0)
724 return err;
725
726 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
727 if (!chip) {
728 pci_disable_device(pci);
729 return -ENOMEM;
730 }
731 chip->card = card;
732 chip->pci = pci;
733 chip->irq = -1;
734 spin_lock_init(&chip->reg_lock);
735
736 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) {
737 kfree(chip);
738 pci_disable_device(pci);
739 return err;
740 }
741 chip->mmio = pci_ioremap_bar(pci, 0);
742 if (!chip->mmio) {
743 dev_err(card->dev, "cannot remap io memory\n");
744 err = -ENOMEM;
745 goto fail;
746 }
747
748 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |
749 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
750 chip->interrupt_mask = MY_INTERRUPTS;
751 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
752 snd_bt87x_writel(chip, REG_INT_MASK, 0);
753 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
754
755 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED,
756 KBUILD_MODNAME, chip);
757 if (err < 0) {
758 dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
759 goto fail;
760 }
761 chip->irq = pci->irq;
762 pci_set_master(pci);
763 synchronize_irq(chip->irq);
764
765 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
766 if (err < 0)
767 goto fail;
768
769 *rchip = chip;
770 return 0;
771
772fail:
773 snd_bt87x_free(chip);
774 return err;
775}
776
777#define BT_DEVICE(chip, subvend, subdev, id) \
778 { .vendor = PCI_VENDOR_ID_BROOKTREE, \
779 .device = chip, \
780 .subvendor = subvend, .subdevice = subdev, \
781 .driver_data = SND_BT87X_BOARD_ ## id }
782/* driver_data is the card id for that device */
783
784static const struct pci_device_id snd_bt87x_ids[] = {
785 /* Hauppauge WinTV series */
786 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),
787 /* Hauppauge WinTV series */
788 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),
789 /* Viewcast Osprey 200 */
790 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),
791 /* Viewcast Osprey 440 (rate is configurable via gpio) */
792 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),
793 /* ATI TV-Wonder */
794 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),
795 /* Leadtek Winfast tv 2000xp delux */
796 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),
797 /* Pinnacle PCTV */
798 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC),
799 /* Voodoo TV 200 */
800 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),
801 /* Askey Computer Corp. MagicTView'99 */
802 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC),
803 /* AVerMedia Studio No. 103, 203, ...? */
804 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),
805 /* Prolink PixelView PV-M4900 */
806 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),
807 /* Pinnacle Studio PCTV rave */
808 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),
809 { }
810};
811MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
812
813/* cards known not to have audio
814 * (DVB cards use the audio function to transfer MPEG data) */
815static struct {
816 unsigned short subvendor, subdevice;
817} blacklist[] = {
818 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */
819 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */
820 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */
821 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
822 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */
823 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
824 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */
825 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
826 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
827 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
828 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
829};
830
831static struct pci_driver driver;
832
833/* return the id of the card, or a negative value if it's blacklisted */
834static int snd_bt87x_detect_card(struct pci_dev *pci)
835{
836 int i;
837 const struct pci_device_id *supported;
838
839 supported = pci_match_id(snd_bt87x_ids, pci);
840 if (supported && supported->driver_data > 0)
841 return supported->driver_data;
842
843 for (i = 0; i < ARRAY_SIZE(blacklist); ++i)
844 if (blacklist[i].subvendor == pci->subsystem_vendor &&
845 blacklist[i].subdevice == pci->subsystem_device) {
846 dev_dbg(&pci->dev,
847 "card %#04x-%#04x:%#04x has no audio\n",
848 pci->device, pci->subsystem_vendor, pci->subsystem_device);
849 return -EBUSY;
850 }
851
852 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n",
853 pci->device, pci->subsystem_vendor, pci->subsystem_device);
854 dev_info(&pci->dev, "please mail id, board name, and, "
855 "if it works, the correct digital_rate option to "
856 "<alsa-devel@alsa-project.org>\n");
857 return SND_BT87X_BOARD_UNKNOWN;
858}
859
860static int snd_bt87x_probe(struct pci_dev *pci,
861 const struct pci_device_id *pci_id)
862{
863 static int dev;
864 struct snd_card *card;
865 struct snd_bt87x *chip;
866 int err;
867 enum snd_bt87x_boardid boardid;
868
869 if (!pci_id->driver_data) {
870 err = snd_bt87x_detect_card(pci);
871 if (err < 0)
872 return -ENODEV;
873 boardid = err;
874 } else
875 boardid = pci_id->driver_data;
876
877 if (dev >= SNDRV_CARDS)
878 return -ENODEV;
879 if (!enable[dev]) {
880 ++dev;
881 return -ENOENT;
882 }
883
884 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
885 0, &card);
886 if (err < 0)
887 return err;
888
889 err = snd_bt87x_create(card, pci, &chip);
890 if (err < 0)
891 goto _error;
892
893 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
894
895 if (!chip->board.no_digital) {
896 if (digital_rate[dev] > 0)
897 chip->board.dig_rate = digital_rate[dev];
898
899 chip->reg_control |= chip->board.digital_fmt;
900
901 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
902 if (err < 0)
903 goto _error;
904 }
905 if (!chip->board.no_analog) {
906 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
907 if (err < 0)
908 goto _error;
909 err = snd_ctl_add(card, snd_ctl_new1(
910 &snd_bt87x_capture_volume, chip));
911 if (err < 0)
912 goto _error;
913 err = snd_ctl_add(card, snd_ctl_new1(
914 &snd_bt87x_capture_boost, chip));
915 if (err < 0)
916 goto _error;
917 err = snd_ctl_add(card, snd_ctl_new1(
918 &snd_bt87x_capture_source, chip));
919 if (err < 0)
920 goto _error;
921 }
922 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital "
923 "(rate %d Hz)\n", dev, boardid,
924 chip->board.no_analog ? "no " : "",
925 chip->board.no_digital ? "no " : "", chip->board.dig_rate);
926
927 strcpy(card->driver, "Bt87x");
928 sprintf(card->shortname, "Brooktree Bt%x", pci->device);
929 sprintf(card->longname, "%s at %#llx, irq %i",
930 card->shortname, (unsigned long long)pci_resource_start(pci, 0),
931 chip->irq);
932 strcpy(card->mixername, "Bt87x");
933
934 err = snd_card_register(card);
935 if (err < 0)
936 goto _error;
937
938 pci_set_drvdata(pci, card);
939 ++dev;
940 return 0;
941
942_error:
943 snd_card_free(card);
944 return err;
945}
946
947static void snd_bt87x_remove(struct pci_dev *pci)
948{
949 snd_card_free(pci_get_drvdata(pci));
950}
951
952/* default entries for all Bt87x cards - it's not exported */
953/* driver_data is set to 0 to call detection */
954static const struct pci_device_id snd_bt87x_default_ids[] = {
955 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
956 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
957 { }
958};
959
960static struct pci_driver driver = {
961 .name = KBUILD_MODNAME,
962 .id_table = snd_bt87x_ids,
963 .probe = snd_bt87x_probe,
964 .remove = snd_bt87x_remove,
965};
966
967static int __init alsa_card_bt87x_init(void)
968{
969 if (load_all)
970 driver.id_table = snd_bt87x_default_ids;
971 return pci_register_driver(&driver);
972}
973
974static void __exit alsa_card_bt87x_exit(void)
975{
976 pci_unregister_driver(&driver);
977}
978
979module_init(alsa_card_bt87x_init)
980module_exit(alsa_card_bt87x_exit)