Root/
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/moduleparam.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 | |
37 | MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); |
38 | MODULE_DESCRIPTION("Brooktree Bt87x audio driver"); |
39 | MODULE_LICENSE("GPL"); |
40 | MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878}," |
41 | "{Brooktree,Bt879}}"); |
42 | |
43 | static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */ |
44 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
45 | static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ |
46 | static int digital_rate[SNDRV_CARDS]; /* digital input rate */ |
47 | static int load_all; /* allow to load the non-whitelisted cards */ |
48 | |
49 | module_param_array(index, int, NULL, 0444); |
50 | MODULE_PARM_DESC(index, "Index value for Bt87x soundcard"); |
51 | module_param_array(id, charp, NULL, 0444); |
52 | MODULE_PARM_DESC(id, "ID string for Bt87x soundcard"); |
53 | module_param_array(enable, bool, NULL, 0444); |
54 | MODULE_PARM_DESC(enable, "Enable Bt87x soundcard"); |
55 | module_param_array(digital_rate, int, NULL, 0444); |
56 | MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard"); |
57 | module_param(load_all, bool, 0444); |
58 | MODULE_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 */ |
150 | enum 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 */ |
160 | struct 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 | |
167 | static __devinitdata 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 | |
191 | struct 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 | |
215 | enum { DEVICE_DIGITAL, DEVICE_ANALOG }; |
216 | |
217 | static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg) |
218 | { |
219 | return readl(chip->mmio + reg); |
220 | } |
221 | |
222 | static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value) |
223 | { |
224 | writel(value, chip->mmio + reg); |
225 | } |
226 | |
227 | static 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 | |
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 | SNDRV_PCM_INFO_BATCH, |
354 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
355 | .rates = 0, /* set at runtime */ |
356 | .channels_min = 2, |
357 | .channels_max = 2, |
358 | .buffer_bytes_max = 255 * 4092, |
359 | .period_bytes_min = 32, |
360 | .period_bytes_max = 4092, |
361 | .periods_min = 2, |
362 | .periods_max = 255, |
363 | }; |
364 | |
365 | static struct snd_pcm_hardware snd_bt87x_analog_hw = { |
366 | .info = SNDRV_PCM_INFO_MMAP | |
367 | SNDRV_PCM_INFO_INTERLEAVED | |
368 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
369 | SNDRV_PCM_INFO_MMAP_VALID | |
370 | SNDRV_PCM_INFO_BATCH, |
371 | .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8, |
372 | .rates = SNDRV_PCM_RATE_KNOT, |
373 | .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX, |
374 | .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN, |
375 | .channels_min = 1, |
376 | .channels_max = 1, |
377 | .buffer_bytes_max = 255 * 4092, |
378 | .period_bytes_min = 32, |
379 | .period_bytes_max = 4092, |
380 | .periods_min = 2, |
381 | .periods_max = 255, |
382 | }; |
383 | |
384 | static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) |
385 | { |
386 | chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN; |
387 | runtime->hw = snd_bt87x_digital_hw; |
388 | runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate); |
389 | runtime->hw.rate_min = chip->board.dig_rate; |
390 | runtime->hw.rate_max = chip->board.dig_rate; |
391 | return 0; |
392 | } |
393 | |
394 | static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) |
395 | { |
396 | static struct snd_ratnum analog_clock = { |
397 | .num = ANALOG_CLOCK, |
398 | .den_min = CLOCK_DIV_MIN, |
399 | .den_max = CLOCK_DIV_MAX, |
400 | .den_step = 1 |
401 | }; |
402 | static struct snd_pcm_hw_constraint_ratnums constraint_rates = { |
403 | .nrats = 1, |
404 | .rats = &analog_clock |
405 | }; |
406 | |
407 | chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN); |
408 | runtime->hw = snd_bt87x_analog_hw; |
409 | return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, |
410 | &constraint_rates); |
411 | } |
412 | |
413 | static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream) |
414 | { |
415 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
416 | struct snd_pcm_runtime *runtime = substream->runtime; |
417 | int err; |
418 | |
419 | if (test_and_set_bit(0, &chip->opened)) |
420 | return -EBUSY; |
421 | |
422 | if (substream->pcm->device == DEVICE_DIGITAL) |
423 | err = snd_bt87x_set_digital_hw(chip, runtime); |
424 | else |
425 | err = snd_bt87x_set_analog_hw(chip, runtime); |
426 | if (err < 0) |
427 | goto _error; |
428 | |
429 | err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); |
430 | if (err < 0) |
431 | goto _error; |
432 | |
433 | chip->substream = substream; |
434 | return 0; |
435 | |
436 | _error: |
437 | clear_bit(0, &chip->opened); |
438 | smp_mb__after_clear_bit(); |
439 | return err; |
440 | } |
441 | |
442 | static int snd_bt87x_close(struct snd_pcm_substream *substream) |
443 | { |
444 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
445 | |
446 | spin_lock_irq(&chip->reg_lock); |
447 | chip->reg_control |= CTL_A_PWRDN; |
448 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); |
449 | spin_unlock_irq(&chip->reg_lock); |
450 | |
451 | chip->substream = NULL; |
452 | clear_bit(0, &chip->opened); |
453 | smp_mb__after_clear_bit(); |
454 | return 0; |
455 | } |
456 | |
457 | static int snd_bt87x_hw_params(struct snd_pcm_substream *substream, |
458 | struct snd_pcm_hw_params *hw_params) |
459 | { |
460 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
461 | int err; |
462 | |
463 | err = snd_pcm_lib_malloc_pages(substream, |
464 | params_buffer_bytes(hw_params)); |
465 | if (err < 0) |
466 | return err; |
467 | return snd_bt87x_create_risc(chip, substream, |
468 | params_periods(hw_params), |
469 | params_period_bytes(hw_params)); |
470 | } |
471 | |
472 | static int snd_bt87x_hw_free(struct snd_pcm_substream *substream) |
473 | { |
474 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
475 | |
476 | snd_bt87x_free_risc(chip); |
477 | snd_pcm_lib_free_pages(substream); |
478 | return 0; |
479 | } |
480 | |
481 | static int snd_bt87x_prepare(struct snd_pcm_substream *substream) |
482 | { |
483 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
484 | struct snd_pcm_runtime *runtime = substream->runtime; |
485 | int decimation; |
486 | |
487 | spin_lock_irq(&chip->reg_lock); |
488 | chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR); |
489 | decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate; |
490 | chip->reg_control |= decimation << CTL_DA_SDR_SHIFT; |
491 | if (runtime->format == SNDRV_PCM_FORMAT_S8) |
492 | chip->reg_control |= CTL_DA_SBR; |
493 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); |
494 | spin_unlock_irq(&chip->reg_lock); |
495 | return 0; |
496 | } |
497 | |
498 | static int snd_bt87x_start(struct snd_bt87x *chip) |
499 | { |
500 | spin_lock(&chip->reg_lock); |
501 | chip->current_line = 0; |
502 | chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN; |
503 | snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr); |
504 | snd_bt87x_writel(chip, REG_PACKET_LEN, |
505 | chip->line_bytes | (chip->lines << 16)); |
506 | snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask); |
507 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); |
508 | spin_unlock(&chip->reg_lock); |
509 | return 0; |
510 | } |
511 | |
512 | static int snd_bt87x_stop(struct snd_bt87x *chip) |
513 | { |
514 | spin_lock(&chip->reg_lock); |
515 | chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN); |
516 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); |
517 | snd_bt87x_writel(chip, REG_INT_MASK, 0); |
518 | snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); |
519 | spin_unlock(&chip->reg_lock); |
520 | return 0; |
521 | } |
522 | |
523 | static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd) |
524 | { |
525 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
526 | |
527 | switch (cmd) { |
528 | case SNDRV_PCM_TRIGGER_START: |
529 | return snd_bt87x_start(chip); |
530 | case SNDRV_PCM_TRIGGER_STOP: |
531 | return snd_bt87x_stop(chip); |
532 | default: |
533 | return -EINVAL; |
534 | } |
535 | } |
536 | |
537 | static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream) |
538 | { |
539 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
540 | struct snd_pcm_runtime *runtime = substream->runtime; |
541 | |
542 | return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); |
543 | } |
544 | |
545 | static struct snd_pcm_ops snd_bt87x_pcm_ops = { |
546 | .open = snd_bt87x_pcm_open, |
547 | .close = snd_bt87x_close, |
548 | .ioctl = snd_pcm_lib_ioctl, |
549 | .hw_params = snd_bt87x_hw_params, |
550 | .hw_free = snd_bt87x_hw_free, |
551 | .prepare = snd_bt87x_prepare, |
552 | .trigger = snd_bt87x_trigger, |
553 | .pointer = snd_bt87x_pointer, |
554 | .page = snd_pcm_sgbuf_ops_page, |
555 | }; |
556 | |
557 | static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol, |
558 | struct snd_ctl_elem_info *info) |
559 | { |
560 | info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
561 | info->count = 1; |
562 | info->value.integer.min = 0; |
563 | info->value.integer.max = 15; |
564 | return 0; |
565 | } |
566 | |
567 | static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol, |
568 | struct snd_ctl_elem_value *value) |
569 | { |
570 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
571 | |
572 | value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT; |
573 | return 0; |
574 | } |
575 | |
576 | static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol, |
577 | struct snd_ctl_elem_value *value) |
578 | { |
579 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
580 | u32 old_control; |
581 | int changed; |
582 | |
583 | spin_lock_irq(&chip->reg_lock); |
584 | old_control = chip->reg_control; |
585 | chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK) |
586 | | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT); |
587 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); |
588 | changed = old_control != chip->reg_control; |
589 | spin_unlock_irq(&chip->reg_lock); |
590 | return changed; |
591 | } |
592 | |
593 | static struct snd_kcontrol_new snd_bt87x_capture_volume = { |
594 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
595 | .name = "Capture Volume", |
596 | .info = snd_bt87x_capture_volume_info, |
597 | .get = snd_bt87x_capture_volume_get, |
598 | .put = snd_bt87x_capture_volume_put, |
599 | }; |
600 | |
601 | #define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info |
602 | |
603 | static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol, |
604 | struct snd_ctl_elem_value *value) |
605 | { |
606 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
607 | |
608 | value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X); |
609 | return 0; |
610 | } |
611 | |
612 | static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol, |
613 | struct snd_ctl_elem_value *value) |
614 | { |
615 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
616 | u32 old_control; |
617 | int changed; |
618 | |
619 | spin_lock_irq(&chip->reg_lock); |
620 | old_control = chip->reg_control; |
621 | chip->reg_control = (chip->reg_control & ~CTL_A_G2X) |
622 | | (value->value.integer.value[0] ? CTL_A_G2X : 0); |
623 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); |
624 | changed = chip->reg_control != old_control; |
625 | spin_unlock_irq(&chip->reg_lock); |
626 | return changed; |
627 | } |
628 | |
629 | static struct snd_kcontrol_new snd_bt87x_capture_boost = { |
630 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
631 | .name = "Capture Boost", |
632 | .info = snd_bt87x_capture_boost_info, |
633 | .get = snd_bt87x_capture_boost_get, |
634 | .put = snd_bt87x_capture_boost_put, |
635 | }; |
636 | |
637 | static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol, |
638 | struct snd_ctl_elem_info *info) |
639 | { |
640 | static char *texts[3] = {"TV Tuner", "FM", "Mic/Line"}; |
641 | |
642 | info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
643 | info->count = 1; |
644 | info->value.enumerated.items = 3; |
645 | if (info->value.enumerated.item > 2) |
646 | info->value.enumerated.item = 2; |
647 | strcpy(info->value.enumerated.name, texts[info->value.enumerated.item]); |
648 | return 0; |
649 | } |
650 | |
651 | static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, |
652 | struct snd_ctl_elem_value *value) |
653 | { |
654 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
655 | |
656 | value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; |
657 | return 0; |
658 | } |
659 | |
660 | static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, |
661 | struct snd_ctl_elem_value *value) |
662 | { |
663 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
664 | u32 old_control; |
665 | int changed; |
666 | |
667 | spin_lock_irq(&chip->reg_lock); |
668 | old_control = chip->reg_control; |
669 | chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK) |
670 | | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT); |
671 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); |
672 | changed = chip->reg_control != old_control; |
673 | spin_unlock_irq(&chip->reg_lock); |
674 | return changed; |
675 | } |
676 | |
677 | static struct snd_kcontrol_new snd_bt87x_capture_source = { |
678 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
679 | .name = "Capture Source", |
680 | .info = snd_bt87x_capture_source_info, |
681 | .get = snd_bt87x_capture_source_get, |
682 | .put = snd_bt87x_capture_source_put, |
683 | }; |
684 | |
685 | static int snd_bt87x_free(struct snd_bt87x *chip) |
686 | { |
687 | if (chip->mmio) |
688 | snd_bt87x_stop(chip); |
689 | if (chip->irq >= 0) |
690 | free_irq(chip->irq, chip); |
691 | if (chip->mmio) |
692 | iounmap(chip->mmio); |
693 | pci_release_regions(chip->pci); |
694 | pci_disable_device(chip->pci); |
695 | kfree(chip); |
696 | return 0; |
697 | } |
698 | |
699 | static int snd_bt87x_dev_free(struct snd_device *device) |
700 | { |
701 | struct snd_bt87x *chip = device->device_data; |
702 | return snd_bt87x_free(chip); |
703 | } |
704 | |
705 | static int __devinit snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) |
706 | { |
707 | int err; |
708 | struct snd_pcm *pcm; |
709 | |
710 | err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); |
711 | if (err < 0) |
712 | return err; |
713 | pcm->private_data = chip; |
714 | strcpy(pcm->name, name); |
715 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops); |
716 | return snd_pcm_lib_preallocate_pages_for_all(pcm, |
717 | SNDRV_DMA_TYPE_DEV_SG, |
718 | snd_dma_pci_data(chip->pci), |
719 | 128 * 1024, |
720 | ALIGN(255 * 4092, 1024)); |
721 | } |
722 | |
723 | static int __devinit snd_bt87x_create(struct snd_card *card, |
724 | struct pci_dev *pci, |
725 | struct snd_bt87x **rchip) |
726 | { |
727 | struct snd_bt87x *chip; |
728 | int err; |
729 | static struct snd_device_ops ops = { |
730 | .dev_free = snd_bt87x_dev_free |
731 | }; |
732 | |
733 | *rchip = NULL; |
734 | |
735 | err = pci_enable_device(pci); |
736 | if (err < 0) |
737 | return err; |
738 | |
739 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
740 | if (!chip) { |
741 | pci_disable_device(pci); |
742 | return -ENOMEM; |
743 | } |
744 | chip->card = card; |
745 | chip->pci = pci; |
746 | chip->irq = -1; |
747 | spin_lock_init(&chip->reg_lock); |
748 | |
749 | if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) { |
750 | kfree(chip); |
751 | pci_disable_device(pci); |
752 | return err; |
753 | } |
754 | chip->mmio = pci_ioremap_bar(pci, 0); |
755 | if (!chip->mmio) { |
756 | snd_printk(KERN_ERR "cannot remap io memory\n"); |
757 | err = -ENOMEM; |
758 | goto fail; |
759 | } |
760 | |
761 | chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 | |
762 | CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); |
763 | chip->interrupt_mask = MY_INTERRUPTS; |
764 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control); |
765 | snd_bt87x_writel(chip, REG_INT_MASK, 0); |
766 | snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); |
767 | |
768 | err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED, |
769 | "Bt87x audio", chip); |
770 | if (err < 0) { |
771 | snd_printk(KERN_ERR "cannot grab irq %d\n", pci->irq); |
772 | goto fail; |
773 | } |
774 | chip->irq = pci->irq; |
775 | pci_set_master(pci); |
776 | synchronize_irq(chip->irq); |
777 | |
778 | err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); |
779 | if (err < 0) |
780 | goto fail; |
781 | |
782 | snd_card_set_dev(card, &pci->dev); |
783 | *rchip = chip; |
784 | return 0; |
785 | |
786 | fail: |
787 | snd_bt87x_free(chip); |
788 | return err; |
789 | } |
790 | |
791 | #define BT_DEVICE(chip, subvend, subdev, id) \ |
792 | { .vendor = PCI_VENDOR_ID_BROOKTREE, \ |
793 | .device = chip, \ |
794 | .subvendor = subvend, .subdevice = subdev, \ |
795 | .driver_data = SND_BT87X_BOARD_ ## id } |
796 | /* driver_data is the card id for that device */ |
797 | |
798 | static DEFINE_PCI_DEVICE_TABLE(snd_bt87x_ids) = { |
799 | /* Hauppauge WinTV series */ |
800 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC), |
801 | /* Hauppauge WinTV series */ |
802 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC), |
803 | /* Viewcast Osprey 200 */ |
804 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0), |
805 | /* Viewcast Osprey 440 (rate is configurable via gpio) */ |
806 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440), |
807 | /* ATI TV-Wonder */ |
808 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC), |
809 | /* Leadtek Winfast tv 2000xp delux */ |
810 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC), |
811 | /* Pinnacle PCTV */ |
812 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC), |
813 | /* Voodoo TV 200 */ |
814 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC), |
815 | /* Askey Computer Corp. MagicTView'99 */ |
816 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC), |
817 | /* AVerMedia Studio No. 103, 203, ...? */ |
818 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98), |
819 | /* Prolink PixelView PV-M4900 */ |
820 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC), |
821 | /* Pinnacle Studio PCTV rave */ |
822 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC), |
823 | { } |
824 | }; |
825 | MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); |
826 | |
827 | /* cards known not to have audio |
828 | * (DVB cards use the audio function to transfer MPEG data) */ |
829 | static struct { |
830 | unsigned short subvendor, subdevice; |
831 | } blacklist[] __devinitdata = { |
832 | {0x0071, 0x0101}, /* Nebula Electronics DigiTV */ |
833 | {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */ |
834 | {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */ |
835 | {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */ |
836 | {0x1461, 0x0771}, /* AVermedia DVB-T 771 */ |
837 | {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */ |
838 | {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */ |
839 | {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */ |
840 | {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */ |
841 | {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */ |
842 | {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */ |
843 | }; |
844 | |
845 | static struct pci_driver driver; |
846 | |
847 | /* return the id of the card, or a negative value if it's blacklisted */ |
848 | static int __devinit snd_bt87x_detect_card(struct pci_dev *pci) |
849 | { |
850 | int i; |
851 | const struct pci_device_id *supported; |
852 | |
853 | supported = pci_match_id(snd_bt87x_ids, pci); |
854 | if (supported && supported->driver_data > 0) |
855 | return supported->driver_data; |
856 | |
857 | for (i = 0; i < ARRAY_SIZE(blacklist); ++i) |
858 | if (blacklist[i].subvendor == pci->subsystem_vendor && |
859 | blacklist[i].subdevice == pci->subsystem_device) { |
860 | snd_printdd(KERN_INFO "card %#04x-%#04x:%#04x has no audio\n", |
861 | pci->device, pci->subsystem_vendor, pci->subsystem_device); |
862 | return -EBUSY; |
863 | } |
864 | |
865 | snd_printk(KERN_INFO "unknown card %#04x-%#04x:%#04x\n", |
866 | pci->device, pci->subsystem_vendor, pci->subsystem_device); |
867 | snd_printk(KERN_DEBUG "please mail id, board name, and, " |
868 | "if it works, the correct digital_rate option to " |
869 | "<alsa-devel@alsa-project.org>\n"); |
870 | return SND_BT87X_BOARD_UNKNOWN; |
871 | } |
872 | |
873 | static int __devinit snd_bt87x_probe(struct pci_dev *pci, |
874 | const struct pci_device_id *pci_id) |
875 | { |
876 | static int dev; |
877 | struct snd_card *card; |
878 | struct snd_bt87x *chip; |
879 | int err; |
880 | enum snd_bt87x_boardid boardid; |
881 | |
882 | if (!pci_id->driver_data) { |
883 | err = snd_bt87x_detect_card(pci); |
884 | if (err < 0) |
885 | return -ENODEV; |
886 | boardid = err; |
887 | } else |
888 | boardid = pci_id->driver_data; |
889 | |
890 | if (dev >= SNDRV_CARDS) |
891 | return -ENODEV; |
892 | if (!enable[dev]) { |
893 | ++dev; |
894 | return -ENOENT; |
895 | } |
896 | |
897 | err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); |
898 | if (err < 0) |
899 | return err; |
900 | |
901 | err = snd_bt87x_create(card, pci, &chip); |
902 | if (err < 0) |
903 | goto _error; |
904 | |
905 | memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board)); |
906 | |
907 | if (!chip->board.no_digital) { |
908 | if (digital_rate[dev] > 0) |
909 | chip->board.dig_rate = digital_rate[dev]; |
910 | |
911 | chip->reg_control |= chip->board.digital_fmt; |
912 | |
913 | err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital"); |
914 | if (err < 0) |
915 | goto _error; |
916 | } |
917 | if (!chip->board.no_analog) { |
918 | err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog"); |
919 | if (err < 0) |
920 | goto _error; |
921 | err = snd_ctl_add(card, snd_ctl_new1( |
922 | &snd_bt87x_capture_volume, chip)); |
923 | if (err < 0) |
924 | goto _error; |
925 | err = snd_ctl_add(card, snd_ctl_new1( |
926 | &snd_bt87x_capture_boost, chip)); |
927 | if (err < 0) |
928 | goto _error; |
929 | err = snd_ctl_add(card, snd_ctl_new1( |
930 | &snd_bt87x_capture_source, chip)); |
931 | if (err < 0) |
932 | goto _error; |
933 | } |
934 | snd_printk(KERN_INFO "bt87x%d: Using board %d, %sanalog, %sdigital " |
935 | "(rate %d Hz)\n", dev, boardid, |
936 | chip->board.no_analog ? "no " : "", |
937 | chip->board.no_digital ? "no " : "", chip->board.dig_rate); |
938 | |
939 | strcpy(card->driver, "Bt87x"); |
940 | sprintf(card->shortname, "Brooktree Bt%x", pci->device); |
941 | sprintf(card->longname, "%s at %#llx, irq %i", |
942 | card->shortname, (unsigned long long)pci_resource_start(pci, 0), |
943 | chip->irq); |
944 | strcpy(card->mixername, "Bt87x"); |
945 | |
946 | err = snd_card_register(card); |
947 | if (err < 0) |
948 | goto _error; |
949 | |
950 | pci_set_drvdata(pci, card); |
951 | ++dev; |
952 | return 0; |
953 | |
954 | _error: |
955 | snd_card_free(card); |
956 | return err; |
957 | } |
958 | |
959 | static void __devexit snd_bt87x_remove(struct pci_dev *pci) |
960 | { |
961 | snd_card_free(pci_get_drvdata(pci)); |
962 | pci_set_drvdata(pci, NULL); |
963 | } |
964 | |
965 | /* default entries for all Bt87x cards - it's not exported */ |
966 | /* driver_data is set to 0 to call detection */ |
967 | static DEFINE_PCI_DEVICE_TABLE(snd_bt87x_default_ids) = { |
968 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), |
969 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), |
970 | { } |
971 | }; |
972 | |
973 | static struct pci_driver driver = { |
974 | .name = "Bt87x", |
975 | .id_table = snd_bt87x_ids, |
976 | .probe = snd_bt87x_probe, |
977 | .remove = __devexit_p(snd_bt87x_remove), |
978 | }; |
979 | |
980 | static int __init alsa_card_bt87x_init(void) |
981 | { |
982 | if (load_all) |
983 | driver.id_table = snd_bt87x_default_ids; |
984 | return pci_register_driver(&driver); |
985 | } |
986 | |
987 | static void __exit alsa_card_bt87x_exit(void) |
988 | { |
989 | pci_unregister_driver(&driver); |
990 | } |
991 | |
992 | module_init(alsa_card_bt87x_init) |
993 | module_exit(alsa_card_bt87x_exit) |
994 |
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