Loading...
1/*
2 * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA
3 *
4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
5 *
6 * based on btaudio.c by Gerd Knorr <kraxel@bytesex.org>
7 *
8 *
9 * This driver is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This driver is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23
24#include <linux/init.h>
25#include <linux/interrupt.h>
26#include <linux/pci.h>
27#include <linux/slab.h>
28#include <linux/module.h>
29#include <linux/bitops.h>
30#include <asm/io.h>
31#include <sound/core.h>
32#include <sound/pcm.h>
33#include <sound/pcm_params.h>
34#include <sound/control.h>
35#include <sound/initval.h>
36
37MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
38MODULE_DESCRIPTION("Brooktree Bt87x audio driver");
39MODULE_LICENSE("GPL");
40MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878},"
41 "{Brooktree,Bt879}}");
42
43static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
44static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
45static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
46static int digital_rate[SNDRV_CARDS]; /* digital input rate */
47static bool load_all; /* allow to load the non-whitelisted cards */
48
49module_param_array(index, int, NULL, 0444);
50MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
51module_param_array(id, charp, NULL, 0444);
52MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
53module_param_array(enable, bool, NULL, 0444);
54MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
55module_param_array(digital_rate, int, NULL, 0444);
56MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
57module_param(load_all, bool, 0444);
58MODULE_PARM_DESC(load_all, "Allow to load the non-whitelisted cards");
59
60
61/* register offsets */
62#define REG_INT_STAT 0x100 /* interrupt status */
63#define REG_INT_MASK 0x104 /* interrupt mask */
64#define REG_GPIO_DMA_CTL 0x10c /* audio control */
65#define REG_PACKET_LEN 0x110 /* audio packet lengths */
66#define REG_RISC_STRT_ADD 0x114 /* RISC program start address */
67#define REG_RISC_COUNT 0x120 /* RISC program counter */
68
69/* interrupt bits */
70#define INT_OFLOW (1 << 3) /* audio A/D overflow */
71#define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */
72#define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */
73#define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */
74#define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */
75#define INT_PPERR (1 << 15) /* PCI parity error */
76#define INT_RIPERR (1 << 16) /* RISC instruction parity error */
77#define INT_PABORT (1 << 17) /* PCI master or target abort */
78#define INT_OCERR (1 << 18) /* invalid opcode */
79#define INT_SCERR (1 << 19) /* sync counter overflow */
80#define INT_RISC_EN (1 << 27) /* DMA controller running */
81#define INT_RISCS_SHIFT 28 /* RISC status bits */
82
83/* audio control bits */
84#define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */
85#define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */
86#define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */
87#define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */
88#define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */
89#define CTL_ACAP_EN (1 << 4) /* enable audio capture */
90#define CTL_DA_APP (1 << 5) /* GPIO input */
91#define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */
92#define CTL_DA_IOM_DA (1 << 6) /* digital audio input */
93#define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */
94#define CTL_DA_SDR_MASK (0xf<< 8)
95#define CTL_DA_LMT (1 << 12) /* limit audio data values */
96#define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */
97#define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */
98#define CTL_DA_DPM (1 << 15) /* data packet mode */
99#define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */
100#define CTL_DA_MLB (1 << 21) /* MSB/LSB format */
101#define CTL_DA_LRI (1 << 22) /* left/right indication */
102#define CTL_DA_SCE (1 << 23) /* sample clock edge */
103#define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */
104#define CTL_A_SEL_SFM (1 << 24) /* FM audio input */
105#define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */
106#define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */
107#define CTL_A_SEL_SHIFT 24
108#define CTL_A_SEL_MASK (3 << 24)
109#define CTL_A_PWRDN (1 << 26) /* analog audio power-down */
110#define CTL_A_G2X (1 << 27) /* audio gain boost */
111#define CTL_A_GAIN_SHIFT 28 /* audio input gain */
112#define CTL_A_GAIN_MASK (0xf<<28)
113
114/* RISC instruction opcodes */
115#define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */
116#define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */
117#define RISC_SKIP (0x2 << 28) /* skip FIFO data */
118#define RISC_JUMP (0x7 << 28) /* jump to address */
119#define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */
120
121/* RISC instruction bits */
122#define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */
123#define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */
124#define RISC_SET_STATUS_SHIFT 16 /* set status bits */
125#define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */
126#define RISC_IRQ ( 1 << 24) /* interrupt */
127#define RISC_EOL ( 1 << 26) /* end of line */
128#define RISC_SOL ( 1 << 27) /* start of line */
129
130/* SYNC status bits values */
131#define RISC_SYNC_FM1 0x6
132#define RISC_SYNC_VRO 0xc
133
134#define ANALOG_CLOCK 1792000
135#ifdef CONFIG_SND_BT87X_OVERCLOCK
136#define CLOCK_DIV_MIN 1
137#else
138#define CLOCK_DIV_MIN 4
139#endif
140#define CLOCK_DIV_MAX 15
141
142#define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \
143 INT_RIPERR | INT_PABORT | INT_OCERR)
144#define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS)
145
146/* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */
147#define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8)
148
149/* Cards with configuration information */
150enum snd_bt87x_boardid {
151 SND_BT87X_BOARD_UNKNOWN,
152 SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */
153 SND_BT87X_BOARD_ANALOG, /* board with no external A/D */
154 SND_BT87X_BOARD_OSPREY2x0,
155 SND_BT87X_BOARD_OSPREY440,
156 SND_BT87X_BOARD_AVPHONE98,
157};
158
159/* Card configuration */
160struct snd_bt87x_board {
161 int dig_rate; /* Digital input sampling rate */
162 u32 digital_fmt; /* Register settings for digital input */
163 unsigned no_analog:1; /* No analog input */
164 unsigned no_digital:1; /* No digital input */
165};
166
167static struct snd_bt87x_board snd_bt87x_boards[] = {
168 [SND_BT87X_BOARD_UNKNOWN] = {
169 .dig_rate = 32000, /* just a guess */
170 },
171 [SND_BT87X_BOARD_GENERIC] = {
172 .dig_rate = 32000,
173 },
174 [SND_BT87X_BOARD_ANALOG] = {
175 .no_digital = 1,
176 },
177 [SND_BT87X_BOARD_OSPREY2x0] = {
178 .dig_rate = 44100,
179 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
180 },
181 [SND_BT87X_BOARD_OSPREY440] = {
182 .dig_rate = 32000,
183 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
184 .no_analog = 1,
185 },
186 [SND_BT87X_BOARD_AVPHONE98] = {
187 .dig_rate = 48000,
188 },
189};
190
191struct snd_bt87x {
192 struct snd_card *card;
193 struct pci_dev *pci;
194 struct snd_bt87x_board board;
195
196 void __iomem *mmio;
197 int irq;
198
199 spinlock_t reg_lock;
200 unsigned long opened;
201 struct snd_pcm_substream *substream;
202
203 struct snd_dma_buffer dma_risc;
204 unsigned int line_bytes;
205 unsigned int lines;
206
207 u32 reg_control;
208 u32 interrupt_mask;
209
210 int current_line;
211
212 int pci_parity_errors;
213};
214
215enum { DEVICE_DIGITAL, DEVICE_ANALOG };
216
217static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg)
218{
219 return readl(chip->mmio + reg);
220}
221
222static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)
223{
224 writel(value, chip->mmio + reg);
225}
226
227static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream,
228 unsigned int periods, unsigned int period_bytes)
229{
230 unsigned int i, offset;
231 u32 *risc;
232
233 if (chip->dma_risc.area == NULL) {
234 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
235 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0)
236 return -ENOMEM;
237 }
238 risc = (u32 *)chip->dma_risc.area;
239 offset = 0;
240 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1);
241 *risc++ = cpu_to_le32(0);
242 for (i = 0; i < periods; ++i) {
243 u32 rest;
244
245 rest = period_bytes;
246 do {
247 u32 cmd, len;
248 unsigned int addr;
249
250 len = PAGE_SIZE - (offset % PAGE_SIZE);
251 if (len > rest)
252 len = rest;
253 cmd = RISC_WRITE | len;
254 if (rest == period_bytes) {
255 u32 block = i * 16 / periods;
256 cmd |= RISC_SOL;
257 cmd |= block << RISC_SET_STATUS_SHIFT;
258 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT;
259 }
260 if (len == rest)
261 cmd |= RISC_EOL | RISC_IRQ;
262 *risc++ = cpu_to_le32(cmd);
263 addr = snd_pcm_sgbuf_get_addr(substream, offset);
264 *risc++ = cpu_to_le32(addr);
265 offset += len;
266 rest -= len;
267 } while (rest > 0);
268 }
269 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO);
270 *risc++ = cpu_to_le32(0);
271 *risc++ = cpu_to_le32(RISC_JUMP);
272 *risc++ = cpu_to_le32(chip->dma_risc.addr);
273 chip->line_bytes = period_bytes;
274 chip->lines = periods;
275 return 0;
276}
277
278static void snd_bt87x_free_risc(struct snd_bt87x *chip)
279{
280 if (chip->dma_risc.area) {
281 snd_dma_free_pages(&chip->dma_risc);
282 chip->dma_risc.area = NULL;
283 }
284}
285
286static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status)
287{
288 u16 pci_status;
289
290 pci_read_config_word(chip->pci, PCI_STATUS, &pci_status);
291 pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT |
292 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT |
293 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY;
294 pci_write_config_word(chip->pci, PCI_STATUS, pci_status);
295 if (pci_status != PCI_STATUS_DETECTED_PARITY)
296 dev_err(chip->card->dev,
297 "Aieee - PCI error! status %#08x, PCI status %#04x\n",
298 status & ERROR_INTERRUPTS, pci_status);
299 else {
300 dev_err(chip->card->dev,
301 "Aieee - PCI parity error detected!\n");
302 /* error 'handling' similar to aic7xxx_pci.c: */
303 chip->pci_parity_errors++;
304 if (chip->pci_parity_errors > 20) {
305 dev_err(chip->card->dev,
306 "Too many PCI parity errors observed.\n");
307 dev_err(chip->card->dev,
308 "Some device on this bus is generating bad parity.\n");
309 dev_err(chip->card->dev,
310 "This is an error *observed by*, not *generated by*, this card.\n");
311 dev_err(chip->card->dev,
312 "PCI parity error checking has been disabled.\n");
313 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);
314 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
315 }
316 }
317}
318
319static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
320{
321 struct snd_bt87x *chip = dev_id;
322 unsigned int status, irq_status;
323
324 status = snd_bt87x_readl(chip, REG_INT_STAT);
325 irq_status = status & chip->interrupt_mask;
326 if (!irq_status)
327 return IRQ_NONE;
328 snd_bt87x_writel(chip, REG_INT_STAT, irq_status);
329
330 if (irq_status & ERROR_INTERRUPTS) {
331 if (irq_status & (INT_FBUS | INT_FTRGT))
332 dev_warn(chip->card->dev,
333 "FIFO overrun, status %#08x\n", status);
334 if (irq_status & INT_OCERR)
335 dev_err(chip->card->dev,
336 "internal RISC error, status %#08x\n", status);
337 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT))
338 snd_bt87x_pci_error(chip, irq_status);
339 }
340 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {
341 int current_block, irq_block;
342
343 /* assume that exactly one line has been recorded */
344 chip->current_line = (chip->current_line + 1) % chip->lines;
345 /* but check if some interrupts have been skipped */
346 current_block = chip->current_line * 16 / chip->lines;
347 irq_block = status >> INT_RISCS_SHIFT;
348 if (current_block != irq_block)
349 chip->current_line = (irq_block * chip->lines + 15) / 16;
350
351 snd_pcm_period_elapsed(chip->substream);
352 }
353 return IRQ_HANDLED;
354}
355
356static struct snd_pcm_hardware snd_bt87x_digital_hw = {
357 .info = SNDRV_PCM_INFO_MMAP |
358 SNDRV_PCM_INFO_INTERLEAVED |
359 SNDRV_PCM_INFO_BLOCK_TRANSFER |
360 SNDRV_PCM_INFO_MMAP_VALID |
361 SNDRV_PCM_INFO_BATCH,
362 .formats = SNDRV_PCM_FMTBIT_S16_LE,
363 .rates = 0, /* set at runtime */
364 .channels_min = 2,
365 .channels_max = 2,
366 .buffer_bytes_max = 255 * 4092,
367 .period_bytes_min = 32,
368 .period_bytes_max = 4092,
369 .periods_min = 2,
370 .periods_max = 255,
371};
372
373static struct snd_pcm_hardware snd_bt87x_analog_hw = {
374 .info = SNDRV_PCM_INFO_MMAP |
375 SNDRV_PCM_INFO_INTERLEAVED |
376 SNDRV_PCM_INFO_BLOCK_TRANSFER |
377 SNDRV_PCM_INFO_MMAP_VALID |
378 SNDRV_PCM_INFO_BATCH,
379 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
380 .rates = SNDRV_PCM_RATE_KNOT,
381 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,
382 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN,
383 .channels_min = 1,
384 .channels_max = 1,
385 .buffer_bytes_max = 255 * 4092,
386 .period_bytes_min = 32,
387 .period_bytes_max = 4092,
388 .periods_min = 2,
389 .periods_max = 255,
390};
391
392static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
393{
394 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN;
395 runtime->hw = snd_bt87x_digital_hw;
396 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);
397 runtime->hw.rate_min = chip->board.dig_rate;
398 runtime->hw.rate_max = chip->board.dig_rate;
399 return 0;
400}
401
402static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
403{
404 static struct snd_ratnum analog_clock = {
405 .num = ANALOG_CLOCK,
406 .den_min = CLOCK_DIV_MIN,
407 .den_max = CLOCK_DIV_MAX,
408 .den_step = 1
409 };
410 static struct snd_pcm_hw_constraint_ratnums constraint_rates = {
411 .nrats = 1,
412 .rats = &analog_clock
413 };
414
415 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN);
416 runtime->hw = snd_bt87x_analog_hw;
417 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
418 &constraint_rates);
419}
420
421static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream)
422{
423 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
424 struct snd_pcm_runtime *runtime = substream->runtime;
425 int err;
426
427 if (test_and_set_bit(0, &chip->opened))
428 return -EBUSY;
429
430 if (substream->pcm->device == DEVICE_DIGITAL)
431 err = snd_bt87x_set_digital_hw(chip, runtime);
432 else
433 err = snd_bt87x_set_analog_hw(chip, runtime);
434 if (err < 0)
435 goto _error;
436
437 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
438 if (err < 0)
439 goto _error;
440
441 chip->substream = substream;
442 return 0;
443
444_error:
445 clear_bit(0, &chip->opened);
446 smp_mb__after_clear_bit();
447 return err;
448}
449
450static int snd_bt87x_close(struct snd_pcm_substream *substream)
451{
452 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
453
454 spin_lock_irq(&chip->reg_lock);
455 chip->reg_control |= CTL_A_PWRDN;
456 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
457 spin_unlock_irq(&chip->reg_lock);
458
459 chip->substream = NULL;
460 clear_bit(0, &chip->opened);
461 smp_mb__after_clear_bit();
462 return 0;
463}
464
465static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,
466 struct snd_pcm_hw_params *hw_params)
467{
468 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
469 int err;
470
471 err = snd_pcm_lib_malloc_pages(substream,
472 params_buffer_bytes(hw_params));
473 if (err < 0)
474 return err;
475 return snd_bt87x_create_risc(chip, substream,
476 params_periods(hw_params),
477 params_period_bytes(hw_params));
478}
479
480static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)
481{
482 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
483
484 snd_bt87x_free_risc(chip);
485 snd_pcm_lib_free_pages(substream);
486 return 0;
487}
488
489static int snd_bt87x_prepare(struct snd_pcm_substream *substream)
490{
491 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
492 struct snd_pcm_runtime *runtime = substream->runtime;
493 int decimation;
494
495 spin_lock_irq(&chip->reg_lock);
496 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);
497 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;
498 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;
499 if (runtime->format == SNDRV_PCM_FORMAT_S8)
500 chip->reg_control |= CTL_DA_SBR;
501 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
502 spin_unlock_irq(&chip->reg_lock);
503 return 0;
504}
505
506static int snd_bt87x_start(struct snd_bt87x *chip)
507{
508 spin_lock(&chip->reg_lock);
509 chip->current_line = 0;
510 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;
511 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);
512 snd_bt87x_writel(chip, REG_PACKET_LEN,
513 chip->line_bytes | (chip->lines << 16));
514 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
515 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
516 spin_unlock(&chip->reg_lock);
517 return 0;
518}
519
520static int snd_bt87x_stop(struct snd_bt87x *chip)
521{
522 spin_lock(&chip->reg_lock);
523 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);
524 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
525 snd_bt87x_writel(chip, REG_INT_MASK, 0);
526 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
527 spin_unlock(&chip->reg_lock);
528 return 0;
529}
530
531static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd)
532{
533 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
534
535 switch (cmd) {
536 case SNDRV_PCM_TRIGGER_START:
537 return snd_bt87x_start(chip);
538 case SNDRV_PCM_TRIGGER_STOP:
539 return snd_bt87x_stop(chip);
540 default:
541 return -EINVAL;
542 }
543}
544
545static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)
546{
547 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
548 struct snd_pcm_runtime *runtime = substream->runtime;
549
550 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);
551}
552
553static struct snd_pcm_ops snd_bt87x_pcm_ops = {
554 .open = snd_bt87x_pcm_open,
555 .close = snd_bt87x_close,
556 .ioctl = snd_pcm_lib_ioctl,
557 .hw_params = snd_bt87x_hw_params,
558 .hw_free = snd_bt87x_hw_free,
559 .prepare = snd_bt87x_prepare,
560 .trigger = snd_bt87x_trigger,
561 .pointer = snd_bt87x_pointer,
562 .page = snd_pcm_sgbuf_ops_page,
563};
564
565static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol,
566 struct snd_ctl_elem_info *info)
567{
568 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
569 info->count = 1;
570 info->value.integer.min = 0;
571 info->value.integer.max = 15;
572 return 0;
573}
574
575static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol,
576 struct snd_ctl_elem_value *value)
577{
578 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
579
580 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;
581 return 0;
582}
583
584static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol,
585 struct snd_ctl_elem_value *value)
586{
587 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
588 u32 old_control;
589 int changed;
590
591 spin_lock_irq(&chip->reg_lock);
592 old_control = chip->reg_control;
593 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)
594 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);
595 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
596 changed = old_control != chip->reg_control;
597 spin_unlock_irq(&chip->reg_lock);
598 return changed;
599}
600
601static struct snd_kcontrol_new snd_bt87x_capture_volume = {
602 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
603 .name = "Capture Volume",
604 .info = snd_bt87x_capture_volume_info,
605 .get = snd_bt87x_capture_volume_get,
606 .put = snd_bt87x_capture_volume_put,
607};
608
609#define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info
610
611static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol,
612 struct snd_ctl_elem_value *value)
613{
614 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
615
616 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);
617 return 0;
618}
619
620static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol,
621 struct snd_ctl_elem_value *value)
622{
623 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
624 u32 old_control;
625 int changed;
626
627 spin_lock_irq(&chip->reg_lock);
628 old_control = chip->reg_control;
629 chip->reg_control = (chip->reg_control & ~CTL_A_G2X)
630 | (value->value.integer.value[0] ? CTL_A_G2X : 0);
631 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
632 changed = chip->reg_control != old_control;
633 spin_unlock_irq(&chip->reg_lock);
634 return changed;
635}
636
637static struct snd_kcontrol_new snd_bt87x_capture_boost = {
638 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
639 .name = "Capture Boost",
640 .info = snd_bt87x_capture_boost_info,
641 .get = snd_bt87x_capture_boost_get,
642 .put = snd_bt87x_capture_boost_put,
643};
644
645static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol,
646 struct snd_ctl_elem_info *info)
647{
648 static const char *const texts[3] = {"TV Tuner", "FM", "Mic/Line"};
649
650 return snd_ctl_enum_info(info, 1, 3, texts);
651}
652
653static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol,
654 struct snd_ctl_elem_value *value)
655{
656 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
657
658 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;
659 return 0;
660}
661
662static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol,
663 struct snd_ctl_elem_value *value)
664{
665 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
666 u32 old_control;
667 int changed;
668
669 spin_lock_irq(&chip->reg_lock);
670 old_control = chip->reg_control;
671 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)
672 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);
673 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
674 changed = chip->reg_control != old_control;
675 spin_unlock_irq(&chip->reg_lock);
676 return changed;
677}
678
679static struct snd_kcontrol_new snd_bt87x_capture_source = {
680 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
681 .name = "Capture Source",
682 .info = snd_bt87x_capture_source_info,
683 .get = snd_bt87x_capture_source_get,
684 .put = snd_bt87x_capture_source_put,
685};
686
687static int snd_bt87x_free(struct snd_bt87x *chip)
688{
689 if (chip->mmio)
690 snd_bt87x_stop(chip);
691 if (chip->irq >= 0)
692 free_irq(chip->irq, chip);
693 if (chip->mmio)
694 iounmap(chip->mmio);
695 pci_release_regions(chip->pci);
696 pci_disable_device(chip->pci);
697 kfree(chip);
698 return 0;
699}
700
701static int snd_bt87x_dev_free(struct snd_device *device)
702{
703 struct snd_bt87x *chip = device->device_data;
704 return snd_bt87x_free(chip);
705}
706
707static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
708{
709 int err;
710 struct snd_pcm *pcm;
711
712 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
713 if (err < 0)
714 return err;
715 pcm->private_data = chip;
716 strcpy(pcm->name, name);
717 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
718 return snd_pcm_lib_preallocate_pages_for_all(pcm,
719 SNDRV_DMA_TYPE_DEV_SG,
720 snd_dma_pci_data(chip->pci),
721 128 * 1024,
722 ALIGN(255 * 4092, 1024));
723}
724
725static int snd_bt87x_create(struct snd_card *card,
726 struct pci_dev *pci,
727 struct snd_bt87x **rchip)
728{
729 struct snd_bt87x *chip;
730 int err;
731 static struct snd_device_ops ops = {
732 .dev_free = snd_bt87x_dev_free
733 };
734
735 *rchip = NULL;
736
737 err = pci_enable_device(pci);
738 if (err < 0)
739 return err;
740
741 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
742 if (!chip) {
743 pci_disable_device(pci);
744 return -ENOMEM;
745 }
746 chip->card = card;
747 chip->pci = pci;
748 chip->irq = -1;
749 spin_lock_init(&chip->reg_lock);
750
751 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) {
752 kfree(chip);
753 pci_disable_device(pci);
754 return err;
755 }
756 chip->mmio = pci_ioremap_bar(pci, 0);
757 if (!chip->mmio) {
758 dev_err(card->dev, "cannot remap io memory\n");
759 err = -ENOMEM;
760 goto fail;
761 }
762
763 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |
764 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
765 chip->interrupt_mask = MY_INTERRUPTS;
766 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
767 snd_bt87x_writel(chip, REG_INT_MASK, 0);
768 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
769
770 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED,
771 KBUILD_MODNAME, chip);
772 if (err < 0) {
773 dev_err(card->dev, "cannot grab irq %d\n", pci->irq);
774 goto fail;
775 }
776 chip->irq = pci->irq;
777 pci_set_master(pci);
778 synchronize_irq(chip->irq);
779
780 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
781 if (err < 0)
782 goto fail;
783
784 *rchip = chip;
785 return 0;
786
787fail:
788 snd_bt87x_free(chip);
789 return err;
790}
791
792#define BT_DEVICE(chip, subvend, subdev, id) \
793 { .vendor = PCI_VENDOR_ID_BROOKTREE, \
794 .device = chip, \
795 .subvendor = subvend, .subdevice = subdev, \
796 .driver_data = SND_BT87X_BOARD_ ## id }
797/* driver_data is the card id for that device */
798
799static DEFINE_PCI_DEVICE_TABLE(snd_bt87x_ids) = {
800 /* Hauppauge WinTV series */
801 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),
802 /* Hauppauge WinTV series */
803 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),
804 /* Viewcast Osprey 200 */
805 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),
806 /* Viewcast Osprey 440 (rate is configurable via gpio) */
807 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),
808 /* ATI TV-Wonder */
809 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),
810 /* Leadtek Winfast tv 2000xp delux */
811 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),
812 /* Pinnacle PCTV */
813 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC),
814 /* Voodoo TV 200 */
815 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),
816 /* Askey Computer Corp. MagicTView'99 */
817 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC),
818 /* AVerMedia Studio No. 103, 203, ...? */
819 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),
820 /* Prolink PixelView PV-M4900 */
821 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),
822 /* Pinnacle Studio PCTV rave */
823 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),
824 { }
825};
826MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
827
828/* cards known not to have audio
829 * (DVB cards use the audio function to transfer MPEG data) */
830static struct {
831 unsigned short subvendor, subdevice;
832} blacklist[] = {
833 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */
834 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */
835 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */
836 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
837 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */
838 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
839 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */
840 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
841 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
842 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
843 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
844};
845
846static struct pci_driver driver;
847
848/* return the id of the card, or a negative value if it's blacklisted */
849static int snd_bt87x_detect_card(struct pci_dev *pci)
850{
851 int i;
852 const struct pci_device_id *supported;
853
854 supported = pci_match_id(snd_bt87x_ids, pci);
855 if (supported && supported->driver_data > 0)
856 return supported->driver_data;
857
858 for (i = 0; i < ARRAY_SIZE(blacklist); ++i)
859 if (blacklist[i].subvendor == pci->subsystem_vendor &&
860 blacklist[i].subdevice == pci->subsystem_device) {
861 dev_dbg(&pci->dev,
862 "card %#04x-%#04x:%#04x has no audio\n",
863 pci->device, pci->subsystem_vendor, pci->subsystem_device);
864 return -EBUSY;
865 }
866
867 dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n",
868 pci->device, pci->subsystem_vendor, pci->subsystem_device);
869 dev_info(&pci->dev, "please mail id, board name, and, "
870 "if it works, the correct digital_rate option to "
871 "<alsa-devel@alsa-project.org>\n");
872 return SND_BT87X_BOARD_UNKNOWN;
873}
874
875static int snd_bt87x_probe(struct pci_dev *pci,
876 const struct pci_device_id *pci_id)
877{
878 static int dev;
879 struct snd_card *card;
880 struct snd_bt87x *chip;
881 int err;
882 enum snd_bt87x_boardid boardid;
883
884 if (!pci_id->driver_data) {
885 err = snd_bt87x_detect_card(pci);
886 if (err < 0)
887 return -ENODEV;
888 boardid = err;
889 } else
890 boardid = pci_id->driver_data;
891
892 if (dev >= SNDRV_CARDS)
893 return -ENODEV;
894 if (!enable[dev]) {
895 ++dev;
896 return -ENOENT;
897 }
898
899 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
900 0, &card);
901 if (err < 0)
902 return err;
903
904 err = snd_bt87x_create(card, pci, &chip);
905 if (err < 0)
906 goto _error;
907
908 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
909
910 if (!chip->board.no_digital) {
911 if (digital_rate[dev] > 0)
912 chip->board.dig_rate = digital_rate[dev];
913
914 chip->reg_control |= chip->board.digital_fmt;
915
916 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
917 if (err < 0)
918 goto _error;
919 }
920 if (!chip->board.no_analog) {
921 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
922 if (err < 0)
923 goto _error;
924 err = snd_ctl_add(card, snd_ctl_new1(
925 &snd_bt87x_capture_volume, chip));
926 if (err < 0)
927 goto _error;
928 err = snd_ctl_add(card, snd_ctl_new1(
929 &snd_bt87x_capture_boost, chip));
930 if (err < 0)
931 goto _error;
932 err = snd_ctl_add(card, snd_ctl_new1(
933 &snd_bt87x_capture_source, chip));
934 if (err < 0)
935 goto _error;
936 }
937 dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital "
938 "(rate %d Hz)\n", dev, boardid,
939 chip->board.no_analog ? "no " : "",
940 chip->board.no_digital ? "no " : "", chip->board.dig_rate);
941
942 strcpy(card->driver, "Bt87x");
943 sprintf(card->shortname, "Brooktree Bt%x", pci->device);
944 sprintf(card->longname, "%s at %#llx, irq %i",
945 card->shortname, (unsigned long long)pci_resource_start(pci, 0),
946 chip->irq);
947 strcpy(card->mixername, "Bt87x");
948
949 err = snd_card_register(card);
950 if (err < 0)
951 goto _error;
952
953 pci_set_drvdata(pci, card);
954 ++dev;
955 return 0;
956
957_error:
958 snd_card_free(card);
959 return err;
960}
961
962static void snd_bt87x_remove(struct pci_dev *pci)
963{
964 snd_card_free(pci_get_drvdata(pci));
965}
966
967/* default entries for all Bt87x cards - it's not exported */
968/* driver_data is set to 0 to call detection */
969static DEFINE_PCI_DEVICE_TABLE(snd_bt87x_default_ids) = {
970 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
971 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
972 { }
973};
974
975static struct pci_driver driver = {
976 .name = KBUILD_MODNAME,
977 .id_table = snd_bt87x_ids,
978 .probe = snd_bt87x_probe,
979 .remove = snd_bt87x_remove,
980};
981
982static int __init alsa_card_bt87x_init(void)
983{
984 if (load_all)
985 driver.id_table = snd_bt87x_default_ids;
986 return pci_register_driver(&driver);
987}
988
989static void __exit alsa_card_bt87x_exit(void)
990{
991 pci_unregister_driver(&driver);
992}
993
994module_init(alsa_card_bt87x_init)
995module_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");
26
27static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
28static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
29static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
30static int digital_rate[SNDRV_CARDS]; /* digital input rate */
31static bool load_all; /* allow to load cards not the allowlist */
32
33module_param_array(index, int, NULL, 0444);
34MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
35module_param_array(id, charp, NULL, 0444);
36MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
37module_param_array(enable, bool, NULL, 0444);
38MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
39module_param_array(digital_rate, int, NULL, 0444);
40MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
41module_param(load_all, bool, 0444);
42MODULE_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 */
134enum 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 */
144struct 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
151static 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
175struct 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
199enum { DEVICE_DIGITAL, DEVICE_ANALOG };
200
201static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg)
202{
203 return readl(chip->mmio + reg);
204}
205
206static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)
207{
208 writel(value, chip->mmio + reg);
209}
210
211static 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
262static 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
270static 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
298static 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
336static 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
353static 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
372static 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
382static 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
401static 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
430static 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
445static 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
455static 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
463static 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
480static 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
494static 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
505static 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
519static 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
527static 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
537static 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
547static 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
556static 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
573static 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
583static 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
592static 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
609static 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
617static 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
625static 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
634static 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
651static 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
659static int snd_bt87x_free(struct snd_bt87x *chip)
660{
661 if (chip->mmio)
662 snd_bt87x_stop(chip);
663 if (chip->irq >= 0)
664 free_irq(chip->irq, chip);
665 iounmap(chip->mmio);
666 pci_release_regions(chip->pci);
667 pci_disable_device(chip->pci);
668 kfree(chip);
669 return 0;
670}
671
672static int snd_bt87x_dev_free(struct snd_device *device)
673{
674 struct snd_bt87x *chip = device->device_data;
675 return snd_bt87x_free(chip);
676}
677
678static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
679{
680 int err;
681 struct snd_pcm *pcm;
682
683 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
684 if (err < 0)
685 return err;
686 pcm->private_data = chip;
687 strcpy(pcm->name, name);
688 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
689 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
690 &chip->pci->dev,
691 128 * 1024,
692 ALIGN(255 * 4092, 1024));
693 return 0;
694}
695
696static int snd_bt87x_create(struct snd_card *card,
697 struct pci_dev *pci,
698 struct snd_bt87x **rchip)
699{
700 struct snd_bt87x *chip;
701 int err;
702 static const struct snd_device_ops ops = {
703 .dev_free = snd_bt87x_dev_free
704 };
705
706 *rchip = NULL;
707
708 err = pci_enable_device(pci);
709 if (err < 0)
710 return err;
711
712 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
713 if (!chip) {
714 pci_disable_device(pci);
715 return -ENOMEM;
716 }
717 chip->card = card;
718 chip->pci = pci;
719 chip->irq = -1;
720 spin_lock_init(&chip->reg_lock);
721
722 err = pci_request_regions(pci, "Bt87x audio");
723 if (err < 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)