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