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ext4: Replace hackish ext4_mb_poll_new_transaction with commit callback
[linux-2.6/mini2440.git] / sound / pci / bt87x.c
blob3aa8d973540abefb0c55234ec4c84eafe66ece26
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 .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 free_irq(chip->irq, chip);
689 if (chip->mmio)
690 iounmap(chip->mmio);
691 pci_release_regions(chip->pci);
692 pci_disable_device(chip->pci);
693 kfree(chip);
694 return 0;
695 }
696
697 static int snd_bt87x_dev_free(struct snd_device *device)
698 {
699 struct snd_bt87x *chip = device->device_data;
700 return snd_bt87x_free(chip);
701 }
702
703 static int __devinit snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
704 {
705 int err;
706 struct snd_pcm *pcm;
707
708 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
709 if (err < 0)
710 return err;
711 pcm->private_data = chip;
712 strcpy(pcm->name, name);
713 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
714 return snd_pcm_lib_preallocate_pages_for_all(pcm,
715 SNDRV_DMA_TYPE_DEV_SG,
716 snd_dma_pci_data(chip->pci),
717 128 * 1024,
718 ALIGN(255 * 4092, 1024));
719 }
720
721 static int __devinit snd_bt87x_create(struct snd_card *card,
722 struct pci_dev *pci,
723 struct snd_bt87x **rchip)
724 {
725 struct snd_bt87x *chip;
726 int err;
727 static struct snd_device_ops ops = {
728 .dev_free = snd_bt87x_dev_free
729 };
730
731 *rchip = NULL;
732
733 err = pci_enable_device(pci);
734 if (err < 0)
735 return err;
736
737 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
738 if (!chip) {
739 pci_disable_device(pci);
740 return -ENOMEM;
741 }
742 chip->card = card;
743 chip->pci = pci;
744 chip->irq = -1;
745 spin_lock_init(&chip->reg_lock);
746
747 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) {
748 kfree(chip);
749 pci_disable_device(pci);
750 return err;
751 }
752 chip->mmio = ioremap_nocache(pci_resource_start(pci, 0),
753 pci_resource_len(pci, 0));
754 if (!chip->mmio) {
755 snd_printk(KERN_ERR "cannot remap io memory\n");
756 err = -ENOMEM;
757 goto fail;
758 }
759
760 chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |
761 CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
762 chip->interrupt_mask = MY_INTERRUPTS;
763 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
764 snd_bt87x_writel(chip, REG_INT_MASK, 0);
765 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
766
767 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED,
768 "Bt87x audio", chip);
769 if (err < 0) {
770 snd_printk(KERN_ERR "cannot grab irq %d\n", pci->irq);
771 goto fail;
772 }
773 chip->irq = pci->irq;
774 pci_set_master(pci);
775 synchronize_irq(chip->irq);
776
777 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
778 if (err < 0)
779 goto fail;
780
781 snd_card_set_dev(card, &pci->dev);
782 *rchip = chip;
783 return 0;
784
785 fail:
786 snd_bt87x_free(chip);
787 return err;
788 }
789
790 #define BT_DEVICE(chip, subvend, subdev, id) \
791 { .vendor = PCI_VENDOR_ID_BROOKTREE, \
792 .device = chip, \
793 .subvendor = subvend, .subdevice = subdev, \
794 .driver_data = SND_BT87X_BOARD_ ## id }
795 /* driver_data is the card id for that device */
796
797 static struct pci_device_id snd_bt87x_ids[] = {
798 /* Hauppauge WinTV series */
799 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),
800 /* Hauppauge WinTV series */
801 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),
802 /* Viewcast Osprey 200 */
803 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),
804 /* Viewcast Osprey 440 (rate is configurable via gpio) */
805 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),
806 /* ATI TV-Wonder */
807 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),
808 /* Leadtek Winfast tv 2000xp delux */
809 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),
810 /* Voodoo TV 200 */
811 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),
812 /* AVerMedia Studio No. 103, 203, ...? */
813 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),
814 /* Prolink PixelView PV-M4900 */
815 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),
816 /* Pinnacle Studio PCTV rave */
817 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),
818 { }
819 };
820 MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
821
822 /* cards known not to have audio
823 * (DVB cards use the audio function to transfer MPEG data) */
824 static struct {
825 unsigned short subvendor, subdevice;
826 } blacklist[] __devinitdata = {
827 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */
828 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */
829 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */
830 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
831 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */
832 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
833 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */
834 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
835 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
836 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
837 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
838 };
839
840 static struct pci_driver driver;
841
842 /* return the id of the card, or a negative value if it's blacklisted */
843 static int __devinit snd_bt87x_detect_card(struct pci_dev *pci)
844 {
845 int i;
846 const struct pci_device_id *supported;
847
848 supported = pci_match_id(snd_bt87x_ids, pci);
849 if (supported && supported->driver_data > 0)
850 return supported->driver_data;
851
852 for (i = 0; i < ARRAY_SIZE(blacklist); ++i)
853 if (blacklist[i].subvendor == pci->subsystem_vendor &&
854 blacklist[i].subdevice == pci->subsystem_device) {
855 snd_printdd(KERN_INFO "card %#04x-%#04x:%#04x has no audio\n",
856 pci->device, pci->subsystem_vendor, pci->subsystem_device);
857 return -EBUSY;
858 }
859
860 snd_printk(KERN_INFO "unknown card %#04x-%#04x:%#04x\n",
861 pci->device, pci->subsystem_vendor, pci->subsystem_device);
862 snd_printk(KERN_DEBUG "please mail id, board name, and, "
863 "if it works, the correct digital_rate option to "
864 "<alsa-devel@alsa-project.org>\n");
865 return SND_BT87X_BOARD_UNKNOWN;
866 }
867
868 static int __devinit snd_bt87x_probe(struct pci_dev *pci,
869 const struct pci_device_id *pci_id)
870 {
871 static int dev;
872 struct snd_card *card;
873 struct snd_bt87x *chip;
874 int err;
875 enum snd_bt87x_boardid boardid;
876
877 if (!pci_id->driver_data) {
878 err = snd_bt87x_detect_card(pci);
879 if (err < 0)
880 return -ENODEV;
881 boardid = err;
882 } else
883 boardid = pci_id->driver_data;
884
885 if (dev >= SNDRV_CARDS)
886 return -ENODEV;
887 if (!enable[dev]) {
888 ++dev;
889 return -ENOENT;
890 }
891
892 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
893 if (!card)
894 return -ENOMEM;
895
896 err = snd_bt87x_create(card, pci, &chip);
897 if (err < 0)
898 goto _error;
899
900 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
901
902 if (!chip->board.no_digital) {
903 if (digital_rate[dev] > 0)
904 chip->board.dig_rate = digital_rate[dev];
905
906 chip->reg_control |= chip->board.digital_fmt;
907
908 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
909 if (err < 0)
910 goto _error;
911 }
912 if (!chip->board.no_analog) {
913 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
914 if (err < 0)
915 goto _error;
916 err = snd_ctl_add(card, snd_ctl_new1(
917 &snd_bt87x_capture_volume, chip));
918 if (err < 0)
919 goto _error;
920 err = snd_ctl_add(card, snd_ctl_new1(
921 &snd_bt87x_capture_boost, chip));
922 if (err < 0)
923 goto _error;
924 err = snd_ctl_add(card, snd_ctl_new1(
925 &snd_bt87x_capture_source, chip));
926 if (err < 0)
927 goto _error;
928 }
929 snd_printk(KERN_INFO "bt87x%d: Using board %d, %sanalog, %sdigital "
930 "(rate %d Hz)\n", dev, boardid,
931 chip->board.no_analog ? "no " : "",
932 chip->board.no_digital ? "no " : "", chip->board.dig_rate);
933
934 strcpy(card->driver, "Bt87x");
935 sprintf(card->shortname, "Brooktree Bt%x", pci->device);
936 sprintf(card->longname, "%s at %#llx, irq %i",
937 card->shortname, (unsigned long long)pci_resource_start(pci, 0),
938 chip->irq);
939 strcpy(card->mixername, "Bt87x");
940
941 err = snd_card_register(card);
942 if (err < 0)
943 goto _error;
944
945 pci_set_drvdata(pci, card);
946 ++dev;
947 return 0;
948
949 _error:
950 snd_card_free(card);
951 return err;
952 }
953
954 static void __devexit snd_bt87x_remove(struct pci_dev *pci)
955 {
956 snd_card_free(pci_get_drvdata(pci));
957 pci_set_drvdata(pci, NULL);
958 }
959
960 /* default entries for all Bt87x cards - it's not exported */
961 /* driver_data is set to 0 to call detection */
962 static struct pci_device_id snd_bt87x_default_ids[] __devinitdata = {
963 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
964 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
965 { }
966 };
967
968 static struct pci_driver driver = {
969 .name = "Bt87x",
970 .id_table = snd_bt87x_ids,
971 .probe = snd_bt87x_probe,
972 .remove = __devexit_p(snd_bt87x_remove),
973 };
974
975 static int __init alsa_card_bt87x_init(void)
976 {
977 if (load_all)
978 driver.id_table = snd_bt87x_default_ids;
979 return pci_register_driver(&driver);
980 }
981
982 static void __exit alsa_card_bt87x_exit(void)
983 {
984 pci_unregister_driver(&driver);
985 }
986
987 module_init(alsa_card_bt87x_init)
988 module_exit(alsa_card_bt87x_exit)
Support for the Chinese Samsung S3C2440 based development boards