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x86: fix bogus KERN_ALERT on oops
[pv_ops_mirror.git] / sound / pci / bt87x.c
blob2dba752faf4e6281a2a31bddf4a0998197f4d535
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 <sound/driver.h>
25 #include <linux/init.h>
26 #include <linux/interrupt.h>
27 #include <linux/pci.h>
28 #include <linux/slab.h>
29 #include <linux/moduleparam.h>
30 #include <linux/bitops.h>
31 #include <asm/io.h>
32 #include <sound/core.h>
33 #include <sound/pcm.h>
34 #include <sound/pcm_params.h>
35 #include <sound/control.h>
36 #include <sound/initval.h>
37
38 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
39 MODULE_DESCRIPTION("Brooktree Bt87x audio driver");
40 MODULE_LICENSE("GPL");
41 MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878},"
42 "{Brooktree,Bt879}}");
43
44 static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
45 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
46 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
47 static int digital_rate[SNDRV_CARDS]; /* digital input rate */
48 static int load_all; /* allow to load the non-whitelisted cards */
49
50 module_param_array(index, int, NULL, 0444);
51 MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
52 module_param_array(id, charp, NULL, 0444);
53 MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
54 module_param_array(enable, bool, NULL, 0444);
55 MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
56 module_param_array(digital_rate, int, NULL, 0444);
57 MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
58 module_param(load_all, bool, 0444);
59 MODULE_PARM_DESC(load_all, "Allow to load the non-whitelisted cards");
60
61
62 /* register offsets */
63 #define REG_INT_STAT 0x100 /* interrupt status */
64 #define REG_INT_MASK 0x104 /* interrupt mask */
65 #define REG_GPIO_DMA_CTL 0x10c /* audio control */
66 #define REG_PACKET_LEN 0x110 /* audio packet lengths */
67 #define REG_RISC_STRT_ADD 0x114 /* RISC program start address */
68 #define REG_RISC_COUNT 0x120 /* RISC program counter */
69
70 /* interrupt bits */
71 #define INT_OFLOW (1 << 3) /* audio A/D overflow */
72 #define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */
73 #define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */
74 #define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */
75 #define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */
76 #define INT_PPERR (1 << 15) /* PCI parity error */
77 #define INT_RIPERR (1 << 16) /* RISC instruction parity error */
78 #define INT_PABORT (1 << 17) /* PCI master or target abort */
79 #define INT_OCERR (1 << 18) /* invalid opcode */
80 #define INT_SCERR (1 << 19) /* sync counter overflow */
81 #define INT_RISC_EN (1 << 27) /* DMA controller running */
82 #define INT_RISCS_SHIFT 28 /* RISC status bits */
83
84 /* audio control bits */
85 #define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */
86 #define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */
87 #define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */
88 #define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */
89 #define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */
90 #define CTL_ACAP_EN (1 << 4) /* enable audio capture */
91 #define CTL_DA_APP (1 << 5) /* GPIO input */
92 #define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */
93 #define CTL_DA_IOM_DA (1 << 6) /* digital audio input */
94 #define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */
95 #define CTL_DA_SDR_MASK (0xf<< 8)
96 #define CTL_DA_LMT (1 << 12) /* limit audio data values */
97 #define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */
98 #define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */
99 #define CTL_DA_DPM (1 << 15) /* data packet mode */
100 #define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */
101 #define CTL_DA_MLB (1 << 21) /* MSB/LSB format */
102 #define CTL_DA_LRI (1 << 22) /* left/right indication */
103 #define CTL_DA_SCE (1 << 23) /* sample clock edge */
104 #define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */
105 #define CTL_A_SEL_SFM (1 << 24) /* FM audio input */
106 #define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */
107 #define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */
108 #define CTL_A_SEL_SHIFT 24
109 #define CTL_A_SEL_MASK (3 << 24)
110 #define CTL_A_PWRDN (1 << 26) /* analog audio power-down */
111 #define CTL_A_G2X (1 << 27) /* audio gain boost */
112 #define CTL_A_GAIN_SHIFT 28 /* audio input gain */
113 #define CTL_A_GAIN_MASK (0xf<<28)
114
115 /* RISC instruction opcodes */
116 #define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */
117 #define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */
118 #define RISC_SKIP (0x2 << 28) /* skip FIFO data */
119 #define RISC_JUMP (0x7 << 28) /* jump to address */
120 #define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */
121
122 /* RISC instruction bits */
123 #define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */
124 #define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */
125 #define RISC_SET_STATUS_SHIFT 16 /* set status bits */
126 #define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */
127 #define RISC_IRQ ( 1 << 24) /* interrupt */
128 #define RISC_EOL ( 1 << 26) /* end of line */
129 #define RISC_SOL ( 1 << 27) /* start of line */
130
131 /* SYNC status bits values */
132 #define RISC_SYNC_FM1 0x6
133 #define RISC_SYNC_VRO 0xc
134
135 #define ANALOG_CLOCK 1792000
136 #ifdef CONFIG_SND_BT87X_OVERCLOCK
137 #define CLOCK_DIV_MIN 1
138 #else
139 #define CLOCK_DIV_MIN 4
140 #endif
141 #define CLOCK_DIV_MAX 15
142
143 #define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \
144 INT_RIPERR | INT_PABORT | INT_OCERR)
145 #define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS)
146
147 /* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */
148 #define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8)
149
150 /* Cards with configuration information */
151 enum snd_bt87x_boardid {
152 SND_BT87X_BOARD_UNKNOWN,
153 SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */
154 SND_BT87X_BOARD_ANALOG, /* board with no external A/D */
155 SND_BT87X_BOARD_OSPREY2x0,
156 SND_BT87X_BOARD_OSPREY440,
157 SND_BT87X_BOARD_AVPHONE98,
158 };
159
160 /* Card configuration */
161 struct snd_bt87x_board {
162 int dig_rate; /* Digital input sampling rate */
163 u32 digital_fmt; /* Register settings for digital input */
164 unsigned no_analog:1; /* No analog input */
165 unsigned no_digital:1; /* No digital input */
166 };
167
168 static __devinitdata struct snd_bt87x_board snd_bt87x_boards[] = {
169 [SND_BT87X_BOARD_UNKNOWN] = {
170 .dig_rate = 32000, /* just a guess */
171 },
172 [SND_BT87X_BOARD_GENERIC] = {
173 .dig_rate = 32000,
174 },
175 [SND_BT87X_BOARD_ANALOG] = {
176 .no_digital = 1,
177 },
178 [SND_BT87X_BOARD_OSPREY2x0] = {
179 .dig_rate = 44100,
180 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
181 },
182 [SND_BT87X_BOARD_OSPREY440] = {
183 .dig_rate = 32000,
184 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
185 .no_analog = 1,
186 },
187 [SND_BT87X_BOARD_AVPHONE98] = {
188 .dig_rate = 48000,
189 },
190 };
191
192 struct snd_bt87x {
193 struct snd_card *card;
194 struct pci_dev *pci;
195 struct snd_bt87x_board board;
196
197 void __iomem *mmio;
198 int irq;
199
200 spinlock_t reg_lock;
201 unsigned long opened;
202 struct snd_pcm_substream *substream;
203
204 struct snd_dma_buffer dma_risc;
205 unsigned int line_bytes;
206 unsigned int lines;
207
208 u32 reg_control;
209 u32 interrupt_mask;
210
211 int current_line;
212
213 int pci_parity_errors;
214 };
215
216 enum { DEVICE_DIGITAL, DEVICE_ANALOG };
217
218 static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg)
219 {
220 return readl(chip->mmio + reg);
221 }
222
223 static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)
224 {
225 writel(value, chip->mmio + reg);
226 }
227
228 static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream,
229 unsigned int periods, unsigned int period_bytes)
230 {
231 struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
232 unsigned int i, offset;
233 u32 *risc;
234
235 if (chip->dma_risc.area == NULL) {
236 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
237 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0)
238 return -ENOMEM;
239 }
240 risc = (u32 *)chip->dma_risc.area;
241 offset = 0;
242 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1);
243 *risc++ = cpu_to_le32(0);
244 for (i = 0; i < periods; ++i) {
245 u32 rest;
246
247 rest = period_bytes;
248 do {
249 u32 cmd, len;
250
251 len = PAGE_SIZE - (offset % PAGE_SIZE);
252 if (len > rest)
253 len = rest;
254 cmd = RISC_WRITE | len;
255 if (rest == period_bytes) {
256 u32 block = i * 16 / periods;
257 cmd |= RISC_SOL;
258 cmd |= block << RISC_SET_STATUS_SHIFT;
259 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT;
260 }
261 if (len == rest)
262 cmd |= RISC_EOL | RISC_IRQ;
263 *risc++ = cpu_to_le32(cmd);
264 *risc++ = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, offset));
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
278 static 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
286 static 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 snd_printk(KERN_ERR "Aieee - PCI error! status %#08x, PCI status %#04x\n",
297 status & ERROR_INTERRUPTS, pci_status);
298 else {
299 snd_printk(KERN_ERR "Aieee - PCI parity error detected!\n");
300 /* error 'handling' similar to aic7xxx_pci.c: */
301 chip->pci_parity_errors++;
302 if (chip->pci_parity_errors > 20) {
303 snd_printk(KERN_ERR "Too many PCI parity errors observed.\n");
304 snd_printk(KERN_ERR "Some device on this bus is generating bad parity.\n");
305 snd_printk(KERN_ERR "This is an error *observed by*, not *generated by*, this card.\n");
306 snd_printk(KERN_ERR "PCI parity error checking has been disabled.\n");
307 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);
308 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
309 }
310 }
311 }
312
313 static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
314 {
315 struct snd_bt87x *chip = dev_id;
316 unsigned int status, irq_status;
317
318 status = snd_bt87x_readl(chip, REG_INT_STAT);
319 irq_status = status & chip->interrupt_mask;
320 if (!irq_status)
321 return IRQ_NONE;
322 snd_bt87x_writel(chip, REG_INT_STAT, irq_status);
323
324 if (irq_status & ERROR_INTERRUPTS) {
325 if (irq_status & (INT_FBUS | INT_FTRGT))
326 snd_printk(KERN_WARNING "FIFO overrun, status %#08x\n", status);
327 if (irq_status & INT_OCERR)
328 snd_printk(KERN_ERR "internal RISC error, status %#08x\n", status);
329 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT))
330 snd_bt87x_pci_error(chip, irq_status);
331 }
332 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {
333 int current_block, irq_block;
334
335 /* assume that exactly one line has been recorded */
336 chip->current_line = (chip->current_line + 1) % chip->lines;
337 /* but check if some interrupts have been skipped */
338 current_block = chip->current_line * 16 / chip->lines;
339 irq_block = status >> INT_RISCS_SHIFT;
340 if (current_block != irq_block)
341 chip->current_line = (irq_block * chip->lines + 15) / 16;
342
343 snd_pcm_period_elapsed(chip->substream);
344 }
345 return IRQ_HANDLED;
346 }
347
348 static struct snd_pcm_hardware snd_bt87x_digital_hw = {
349 .info = SNDRV_PCM_INFO_MMAP |
350 SNDRV_PCM_INFO_INTERLEAVED |
351 SNDRV_PCM_INFO_BLOCK_TRANSFER |
352 SNDRV_PCM_INFO_MMAP_VALID,
353 .formats = SNDRV_PCM_FMTBIT_S16_LE,
354 .rates = 0, /* set at runtime */
355 .channels_min = 2,
356 .channels_max = 2,
357 .buffer_bytes_max = 255 * 4092,
358 .period_bytes_min = 32,
359 .period_bytes_max = 4092,
360 .periods_min = 2,
361 .periods_max = 255,
362 };
363
364 static struct snd_pcm_hardware snd_bt87x_analog_hw = {
365 .info = SNDRV_PCM_INFO_MMAP |
366 SNDRV_PCM_INFO_INTERLEAVED |
367 SNDRV_PCM_INFO_BLOCK_TRANSFER |
368 SNDRV_PCM_INFO_MMAP_VALID,
369 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
370 .rates = SNDRV_PCM_RATE_KNOT,
371 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,
372 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN,
373 .channels_min = 1,
374 .channels_max = 1,
375 .buffer_bytes_max = 255 * 4092,
376 .period_bytes_min = 32,
377 .period_bytes_max = 4092,
378 .periods_min = 2,
379 .periods_max = 255,
380 };
381
382 static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
383 {
384 chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN;
385 runtime->hw = snd_bt87x_digital_hw;
386 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);
387 runtime->hw.rate_min = chip->board.dig_rate;
388 runtime->hw.rate_max = chip->board.dig_rate;
389 return 0;
390 }
391
392 static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
393 {
394 static struct snd_ratnum analog_clock = {
395 .num = ANALOG_CLOCK,
396 .den_min = CLOCK_DIV_MIN,
397 .den_max = CLOCK_DIV_MAX,
398 .den_step = 1
399 };
400 static struct snd_pcm_hw_constraint_ratnums constraint_rates = {
401 .nrats = 1,
402 .rats = &analog_clock
403 };
404
405 chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN);
406 runtime->hw = snd_bt87x_analog_hw;
407 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
408 &constraint_rates);
409 }
410
411 static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream)
412 {
413 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
414 struct snd_pcm_runtime *runtime = substream->runtime;
415 int err;
416
417 if (test_and_set_bit(0, &chip->opened))
418 return -EBUSY;
419
420 if (substream->pcm->device == DEVICE_DIGITAL)
421 err = snd_bt87x_set_digital_hw(chip, runtime);
422 else
423 err = snd_bt87x_set_analog_hw(chip, runtime);
424 if (err < 0)
425 goto _error;
426
427 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
428 if (err < 0)
429 goto _error;
430
431 chip->substream = substream;
432 return 0;
433
434 _error:
435 clear_bit(0, &chip->opened);
436 smp_mb__after_clear_bit();
437 return err;
438 }
439
440 static int snd_bt87x_close(struct snd_pcm_substream *substream)
441 {
442 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
443
444 spin_lock_irq(&chip->reg_lock);
445 chip->reg_control |= CTL_A_PWRDN;
446 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
447 spin_unlock_irq(&chip->reg_lock);
448
449 chip->substream = NULL;
450 clear_bit(0, &chip->opened);
451 smp_mb__after_clear_bit();
452 return 0;
453 }
454
455 static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,
456 struct snd_pcm_hw_params *hw_params)
457 {
458 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
459 int err;
460
461 err = snd_pcm_lib_malloc_pages(substream,
462 params_buffer_bytes(hw_params));
463 if (err < 0)
464 return err;
465 return snd_bt87x_create_risc(chip, substream,
466 params_periods(hw_params),
467 params_period_bytes(hw_params));
468 }
469
470 static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)
471 {
472 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
473
474 snd_bt87x_free_risc(chip);
475 snd_pcm_lib_free_pages(substream);
476 return 0;
477 }
478
479 static int snd_bt87x_prepare(struct snd_pcm_substream *substream)
480 {
481 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
482 struct snd_pcm_runtime *runtime = substream->runtime;
483 int decimation;
484
485 spin_lock_irq(&chip->reg_lock);
486 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);
487 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;
488 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;
489 if (runtime->format == SNDRV_PCM_FORMAT_S8)
490 chip->reg_control |= CTL_DA_SBR;
491 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
492 spin_unlock_irq(&chip->reg_lock);
493 return 0;
494 }
495
496 static int snd_bt87x_start(struct snd_bt87x *chip)
497 {
498 spin_lock(&chip->reg_lock);
499 chip->current_line = 0;
500 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;
501 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);
502 snd_bt87x_writel(chip, REG_PACKET_LEN,
503 chip->line_bytes | (chip->lines << 16));
504 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
505 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
506 spin_unlock(&chip->reg_lock);
507 return 0;
508 }
509
510 static int snd_bt87x_stop(struct snd_bt87x *chip)
511 {
512 spin_lock(&chip->reg_lock);
513 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);
514 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
515 snd_bt87x_writel(chip, REG_INT_MASK, 0);
516 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
517 spin_unlock(&chip->reg_lock);
518 return 0;
519 }
520
521 static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd)
522 {
523 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
524
525 switch (cmd) {
526 case SNDRV_PCM_TRIGGER_START:
527 return snd_bt87x_start(chip);
528 case SNDRV_PCM_TRIGGER_STOP:
529 return snd_bt87x_stop(chip);
530 default:
531 return -EINVAL;
532 }
533 }
534
535 static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)
536 {
537 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
538 struct snd_pcm_runtime *runtime = substream->runtime;
539
540 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);
541 }
542
543 static struct snd_pcm_ops snd_bt87x_pcm_ops = {
544 .open = snd_bt87x_pcm_open,
545 .close = snd_bt87x_close,
546 .ioctl = snd_pcm_lib_ioctl,
547 .hw_params = snd_bt87x_hw_params,
548 .hw_free = snd_bt87x_hw_free,
549 .prepare = snd_bt87x_prepare,
550 .trigger = snd_bt87x_trigger,
551 .pointer = snd_bt87x_pointer,
552 .page = snd_pcm_sgbuf_ops_page,
553 };
554
555 static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol,
556 struct snd_ctl_elem_info *info)
557 {
558 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
559 info->count = 1;
560 info->value.integer.min = 0;
561 info->value.integer.max = 15;
562 return 0;
563 }
564
565 static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol,
566 struct snd_ctl_elem_value *value)
567 {
568 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
569
570 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;
571 return 0;
572 }
573
574 static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol,
575 struct snd_ctl_elem_value *value)
576 {
577 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
578 u32 old_control;
579 int changed;
580
581 spin_lock_irq(&chip->reg_lock);
582 old_control = chip->reg_control;
583 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)
584 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);
585 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
586 changed = old_control != chip->reg_control;
587 spin_unlock_irq(&chip->reg_lock);
588 return changed;
589 }
590
591 static struct snd_kcontrol_new snd_bt87x_capture_volume = {
592 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
593 .name = "Capture Volume",
594 .info = snd_bt87x_capture_volume_info,
595 .get = snd_bt87x_capture_volume_get,
596 .put = snd_bt87x_capture_volume_put,
597 };
598
599 #define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info
600
601 static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol,
602 struct snd_ctl_elem_value *value)
603 {
604 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
605
606 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);
607 return 0;
608 }
609
610 static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol,
611 struct snd_ctl_elem_value *value)
612 {
613 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
614 u32 old_control;
615 int changed;
616
617 spin_lock_irq(&chip->reg_lock);
618 old_control = chip->reg_control;
619 chip->reg_control = (chip->reg_control & ~CTL_A_G2X)
620 | (value->value.integer.value[0] ? CTL_A_G2X : 0);
621 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
622 changed = chip->reg_control != old_control;
623 spin_unlock_irq(&chip->reg_lock);
624 return changed;
625 }
626
627 static struct snd_kcontrol_new snd_bt87x_capture_boost = {
628 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
629 .name = "Capture Boost",
630 .info = snd_bt87x_capture_boost_info,
631 .get = snd_bt87x_capture_boost_get,
632 .put = snd_bt87x_capture_boost_put,
633 };
634
635 static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol,
636 struct snd_ctl_elem_info *info)
637 {
638 static char *texts[3] = {"TV Tuner", "FM", "Mic/Line"};
639
640 info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
641 info->count = 1;
642 info->value.enumerated.items = 3;
643 if (info->value.enumerated.item > 2)
644 info->value.enumerated.item = 2;
645 strcpy(info->value.enumerated.name, texts[info->value.enumerated.item]);
646 return 0;
647 }
648
649 static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol,
650 struct snd_ctl_elem_value *value)
651 {
652 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
653
654 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;
655 return 0;
656 }
657
658 static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol,
659 struct snd_ctl_elem_value *value)
660 {
661 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
662 u32 old_control;
663 int changed;
664
665 spin_lock_irq(&chip->reg_lock);
666 old_control = chip->reg_control;
667 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)
668 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);
669 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
670 changed = chip->reg_control != old_control;
671 spin_unlock_irq(&chip->reg_lock);
672 return changed;
673 }
674
675 static struct snd_kcontrol_new snd_bt87x_capture_source = {
676 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
677 .name = "Capture Source",
678 .info = snd_bt87x_capture_source_info,
679 .get = snd_bt87x_capture_source_get,
680 .put = snd_bt87x_capture_source_put,
681 };
682
683 static int snd_bt87x_free(struct snd_bt87x *chip)
684 {
685 if (chip->mmio) {
686 snd_bt87x_stop(chip);
687 if (chip->irq >= 0)
688 synchronize_irq(chip->irq);
689
690 iounmap(chip->mmio);
691 }
692 if (chip->irq >= 0)
693 free_irq(chip->irq, chip);
694 pci_release_regions(chip->pci);
695 pci_disable_device(chip->pci);
696 kfree(chip);
697 return 0;
698 }
699
700 static int snd_bt87x_dev_free(struct snd_device *device)
701 {
702 struct snd_bt87x *chip = device->device_data;
703 return snd_bt87x_free(chip);
704 }
705
706 static int __devinit snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
707 {
708 int err;
709 struct snd_pcm *pcm;
710
711 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
712 if (err < 0)
713 return err;
714 pcm->private_data = chip;
715 strcpy(pcm->name, name);
716 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
717 return snd_pcm_lib_preallocate_pages_for_all(pcm,
718 SNDRV_DMA_TYPE_DEV_SG,
719 snd_dma_pci_data(chip->pci),
720 128 * 1024,
721 ALIGN(255 * 4092, 1024));
722 }
723
724 static int __devinit snd_bt87x_create(struct snd_card *card,
725 struct pci_dev *pci,
726 struct snd_bt87x **rchip)
727 {
728 struct snd_bt87x *chip;
729 int err;
730 static struct snd_device_ops ops = {
731 .dev_free = snd_bt87x_dev_free
732 };
733
734 *rchip = NULL;
735
736 err = pci_enable_device(pci);
737 if (err < 0)
738 return err;
739
740 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
741 if (!chip) {
742 pci_disable_device(pci);
743 return -ENOMEM;
744 }
745 chip->card = card;
746 chip->pci = pci;
747 chip->irq = -1;
748 spin_lock_init(&chip->reg_lock);
749
750 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) {
751 kfree(chip);
752 pci_disable_device(pci);
753 return err;
754 }
755 chip->mmio = ioremap_nocache(pci_resource_start(pci, 0),
756 pci_resource_len(pci, 0));
757 if (!chip->mmio) {
758 snd_printk(KERN_ERR "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 "Bt87x audio", chip);
772 if (err < 0) {
773 snd_printk(KERN_ERR "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 snd_card_set_dev(card, &pci->dev);
785 *rchip = chip;
786 return 0;
787
788 fail:
789 snd_bt87x_free(chip);
790 return err;
791 }
792
793 #define BT_DEVICE(chip, subvend, subdev, id) \
794 { .vendor = PCI_VENDOR_ID_BROOKTREE, \
795 .device = chip, \
796 .subvendor = subvend, .subdevice = subdev, \
797 .driver_data = SND_BT87X_BOARD_ ## id }
798 /* driver_data is the card id for that device */
799
800 static struct pci_device_id snd_bt87x_ids[] = {
801 /* Hauppauge WinTV series */
802 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),
803 /* Hauppauge WinTV series */
804 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),
805 /* Viewcast Osprey 200 */
806 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),
807 /* Viewcast Osprey 440 (rate is configurable via gpio) */
808 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),
809 /* ATI TV-Wonder */
810 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),
811 /* Leadtek Winfast tv 2000xp delux */
812 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),
813 /* Voodoo TV 200 */
814 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),
815 /* AVerMedia Studio No. 103, 203, ...? */
816 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),
817 /* Prolink PixelView PV-M4900 */
818 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),
819 /* Pinnacle Studio PCTV rave */
820 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),
821 { }
822 };
823 MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
824
825 /* cards known not to have audio
826 * (DVB cards use the audio function to transfer MPEG data) */
827 static struct {
828 unsigned short subvendor, subdevice;
829 } blacklist[] __devinitdata = {
830 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */
831 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */
832 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */
833 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
834 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */
835 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
836 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */
837 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
838 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
839 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
840 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
841 };
842
843 static struct pci_driver driver;
844
845 /* return the id of the card, or a negative value if it's blacklisted */
846 static int __devinit snd_bt87x_detect_card(struct pci_dev *pci)
847 {
848 int i;
849 const struct pci_device_id *supported;
850
851 supported = pci_match_id(snd_bt87x_ids, pci);
852 if (supported && supported->driver_data > 0)
853 return supported->driver_data;
854
855 for (i = 0; i < ARRAY_SIZE(blacklist); ++i)
856 if (blacklist[i].subvendor == pci->subsystem_vendor &&
857 blacklist[i].subdevice == pci->subsystem_device) {
858 snd_printdd(KERN_INFO "card %#04x-%#04x:%#04x has no audio\n",
859 pci->device, pci->subsystem_vendor, pci->subsystem_device);
860 return -EBUSY;
861 }
862
863 snd_printk(KERN_INFO "unknown card %#04x-%#04x:%#04x\n",
864 pci->device, pci->subsystem_vendor, pci->subsystem_device);
865 snd_printk(KERN_DEBUG "please mail id, board name, and, "
866 "if it works, the correct digital_rate option to "
867 "<alsa-devel@alsa-project.org>\n");
868 return SND_BT87X_BOARD_UNKNOWN;
869 }
870
871 static int __devinit snd_bt87x_probe(struct pci_dev *pci,
872 const struct pci_device_id *pci_id)
873 {
874 static int dev;
875 struct snd_card *card;
876 struct snd_bt87x *chip;
877 int err;
878 enum snd_bt87x_boardid boardid;
879
880 if (!pci_id->driver_data) {
881 err = snd_bt87x_detect_card(pci);
882 if (err < 0)
883 return -ENODEV;
884 boardid = err;
885 } else
886 boardid = pci_id->driver_data;
887
888 if (dev >= SNDRV_CARDS)
889 return -ENODEV;
890 if (!enable[dev]) {
891 ++dev;
892 return -ENOENT;
893 }
894
895 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
896 if (!card)
897 return -ENOMEM;
898
899 err = snd_bt87x_create(card, pci, &chip);
900 if (err < 0)
901 goto _error;
902
903 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
904
905 if (!chip->board.no_digital) {
906 if (digital_rate[dev] > 0)
907 chip->board.dig_rate = digital_rate[dev];
908
909 chip->reg_control |= chip->board.digital_fmt;
910
911 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
912 if (err < 0)
913 goto _error;
914 }
915 if (!chip->board.no_analog) {
916 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
917 if (err < 0)
918 goto _error;
919 err = snd_ctl_add(card, snd_ctl_new1(
920 &snd_bt87x_capture_volume, chip));
921 if (err < 0)
922 goto _error;
923 err = snd_ctl_add(card, snd_ctl_new1(
924 &snd_bt87x_capture_boost, chip));
925 if (err < 0)
926 goto _error;
927 err = snd_ctl_add(card, snd_ctl_new1(
928 &snd_bt87x_capture_source, chip));
929 if (err < 0)
930 goto _error;
931 }
932 snd_printk(KERN_INFO "bt87x%d: Using board %d, %sanalog, %sdigital "
933 "(rate %d Hz)\n", dev, boardid,
934 chip->board.no_analog ? "no " : "",
935 chip->board.no_digital ? "no " : "", chip->board.dig_rate);
936
937 strcpy(card->driver, "Bt87x");
938 sprintf(card->shortname, "Brooktree Bt%x", pci->device);
939 sprintf(card->longname, "%s at %#llx, irq %i",
940 card->shortname, (unsigned long long)pci_resource_start(pci, 0),
941 chip->irq);
942 strcpy(card->mixername, "Bt87x");
943
944 err = snd_card_register(card);
945 if (err < 0)
946 goto _error;
947
948 pci_set_drvdata(pci, card);
949 ++dev;
950 return 0;
951
952 _error:
953 snd_card_free(card);
954 return err;
955 }
956
957 static void __devexit snd_bt87x_remove(struct pci_dev *pci)
958 {
959 snd_card_free(pci_get_drvdata(pci));
960 pci_set_drvdata(pci, NULL);
961 }
962
963 /* default entries for all Bt87x cards - it's not exported */
964 /* driver_data is set to 0 to call detection */
965 static struct pci_device_id snd_bt87x_default_ids[] __devinitdata = {
966 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
967 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
968 { }
969 };
970
971 static struct pci_driver driver = {
972 .name = "Bt87x",
973 .id_table = snd_bt87x_ids,
974 .probe = snd_bt87x_probe,
975 .remove = __devexit_p(snd_bt87x_remove),
976 };
977
978 static int __init alsa_card_bt87x_init(void)
979 {
980 if (load_all)
981 driver.id_table = snd_bt87x_default_ids;
982 return pci_register_driver(&driver);
983 }
984
985 static void __exit alsa_card_bt87x_exit(void)
986 {
987 pci_unregister_driver(&driver);
988 }
989
990 module_init(alsa_card_bt87x_init)
991 module_exit(alsa_card_bt87x_exit)
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