Commit | Line | Data |
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b7f355d2 MCC |
1 | /* |
2 | * | |
3 | * Support for audio capture | |
4 | * PCI function #1 of the cx2388x. | |
5 | * | |
6 | * (c) 2005,2006 Ricardo Cerqueira <v4l@cerqueira.org> | |
2e7c6dc3 | 7 | * (c) 2005 Mauro Carvalho Chehab <mchehab@infradead.org> |
b7f355d2 MCC |
8 | * Based on a dummy cx88 module by Gerd Knorr <kraxel@bytesex.org> |
9 | * Based on dummy.c by Jaroslav Kysela <perex@suse.cz> | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | */ | |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/device.h> | |
29 | #include <linux/interrupt.h> | |
c24228da AM |
30 | #include <linux/dma-mapping.h> |
31 | ||
b7f355d2 MCC |
32 | #include <asm/delay.h> |
33 | #include <sound/driver.h> | |
34 | #include <sound/core.h> | |
35 | #include <sound/pcm.h> | |
36 | #include <sound/pcm_params.h> | |
37 | #include <sound/control.h> | |
38 | #include <sound/initval.h> | |
39 | ||
40 | #include "cx88.h" | |
41 | #include "cx88-reg.h" | |
42 | ||
43 | #define dprintk(level,fmt, arg...) if (debug >= level) \ | |
44 | printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg) | |
45 | ||
46 | #define dprintk_core(level,fmt, arg...) if (debug >= level) \ | |
47 | printk(KERN_DEBUG "%s/1: " fmt, chip->core->name , ## arg) | |
48 | ||
49 | ||
50 | /**************************************************************************** | |
51 | Data type declarations - Can be moded to a header file later | |
52 | ****************************************************************************/ | |
53 | ||
54 | /* These can be replaced after done */ | |
55 | #define MIXER_ADDR_LAST MAX_CX88_INPUT | |
56 | ||
57 | struct cx88_audio_dev { | |
58 | struct cx88_core *core; | |
59 | struct cx88_dmaqueue q; | |
60 | ||
61 | /* pci i/o */ | |
62 | struct pci_dev *pci; | |
63 | unsigned char pci_rev,pci_lat; | |
64 | ||
65 | /* audio controls */ | |
66 | int irq; | |
67 | ||
f7cbb7fc | 68 | struct snd_card *card; |
b7f355d2 MCC |
69 | |
70 | spinlock_t reg_lock; | |
71 | ||
72 | unsigned int dma_size; | |
73 | unsigned int period_size; | |
74 | unsigned int num_periods; | |
75 | ||
76 | struct videobuf_dmabuf dma_risc; | |
77 | ||
78 | int mixer_volume[MIXER_ADDR_LAST+1][2]; | |
79 | int capture_source[MIXER_ADDR_LAST+1][2]; | |
80 | ||
81 | long int read_count; | |
82 | long int read_offset; | |
83 | ||
84 | struct cx88_buffer *buf; | |
85 | ||
86 | long opened; | |
f7cbb7fc | 87 | struct snd_pcm_substream *substream; |
b7f355d2 MCC |
88 | |
89 | }; | |
90 | typedef struct cx88_audio_dev snd_cx88_card_t; | |
91 | ||
92 | ||
93 | ||
94 | /**************************************************************************** | |
95 | Module global static vars | |
96 | ****************************************************************************/ | |
97 | ||
98 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | |
99 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
100 | static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1}; | |
f7cbb7fc | 101 | static struct snd_card *snd_cx88_cards[SNDRV_CARDS]; |
b7f355d2 MCC |
102 | |
103 | module_param_array(enable, bool, NULL, 0444); | |
104 | MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled."); | |
105 | ||
106 | module_param_array(index, int, NULL, 0444); | |
107 | MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s)."); | |
108 | ||
109 | ||
110 | /**************************************************************************** | |
111 | Module macros | |
112 | ****************************************************************************/ | |
113 | ||
114 | MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards"); | |
115 | MODULE_AUTHOR("Ricardo Cerqueira"); | |
2e7c6dc3 | 116 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>"); |
b7f355d2 MCC |
117 | MODULE_LICENSE("GPL"); |
118 | MODULE_SUPPORTED_DEVICE("{{Conexant,23881}," | |
119 | "{{Conexant,23882}," | |
120 | "{{Conexant,23883}"); | |
a5ed425c | 121 | static unsigned int debug; |
b7f355d2 MCC |
122 | module_param(debug,int,0644); |
123 | MODULE_PARM_DESC(debug,"enable debug messages"); | |
124 | ||
125 | /**************************************************************************** | |
126 | Module specific funtions | |
127 | ****************************************************************************/ | |
128 | ||
129 | /* | |
130 | * BOARD Specific: Sets audio DMA | |
131 | */ | |
132 | ||
be8a82d1 | 133 | static int _cx88_start_audio_dma(snd_cx88_card_t *chip) |
b7f355d2 MCC |
134 | { |
135 | struct cx88_buffer *buf = chip->buf; | |
136 | struct cx88_core *core=chip->core; | |
137 | struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25]; | |
138 | ||
139 | ||
140 | dprintk(1, "Starting audio DMA for %i bytes/line and %i (%i) lines at address %08x\n",buf->bpl, chip->num_periods, audio_ch->fifo_size / buf->bpl, audio_ch->fifo_start); | |
141 | ||
142 | /* setup fifo + format - out channel */ | |
143 | cx88_sram_channel_setup(chip->core, &cx88_sram_channels[SRAM_CH25], | |
144 | buf->bpl, buf->risc.dma); | |
145 | ||
146 | /* sets bpl size */ | |
147 | cx_write(MO_AUDD_LNGTH, buf->bpl); | |
148 | ||
149 | /* reset counter */ | |
150 | cx_write(MO_AUDD_GPCNTRL,GP_COUNT_CONTROL_RESET); | |
151 | ||
8ddac9ee TP |
152 | dprintk(1, "Enabling IRQ, setting mask from 0x%x to 0x%x\n", |
153 | chip->core->pci_irqmask, | |
154 | chip->core->pci_irqmask | PCI_INT_AUDINT); | |
b7f355d2 | 155 | /* enable irqs */ |
8ddac9ee | 156 | cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | PCI_INT_AUDINT); |
b7f355d2 MCC |
157 | |
158 | ||
159 | /* Enables corresponding bits at AUD_INT_STAT */ | |
160 | cx_write(MO_AUD_INTMSK, | |
161 | (1<<16)| | |
162 | (1<<12)| | |
163 | (1<<4)| | |
164 | (1<<0) | |
165 | ); | |
166 | ||
167 | /* start dma */ | |
168 | cx_set(MO_DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */ | |
169 | cx_set(MO_AUD_DMACNTRL, 0x11); /* audio downstream FIFO and RISC enable */ | |
170 | ||
171 | if (debug) | |
172 | cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]); | |
173 | ||
174 | return 0; | |
175 | } | |
176 | ||
177 | /* | |
178 | * BOARD Specific: Resets audio DMA | |
179 | */ | |
be8a82d1 | 180 | static int _cx88_stop_audio_dma(snd_cx88_card_t *chip) |
b7f355d2 MCC |
181 | { |
182 | struct cx88_core *core=chip->core; | |
183 | dprintk(1, "Stopping audio DMA\n"); | |
184 | ||
185 | /* stop dma */ | |
186 | cx_clear(MO_AUD_DMACNTRL, 0x11); | |
187 | ||
188 | /* disable irqs */ | |
8ddac9ee | 189 | cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT); |
b7f355d2 MCC |
190 | cx_clear(MO_AUD_INTMSK, |
191 | (1<<16)| | |
192 | (1<<12)| | |
193 | (1<<4)| | |
194 | (1<<0) | |
195 | ); | |
196 | ||
197 | if (debug) | |
198 | cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]); | |
199 | ||
200 | return 0; | |
201 | } | |
202 | ||
203 | #define MAX_IRQ_LOOP 10 | |
204 | ||
205 | /* | |
206 | * BOARD Specific: IRQ dma bits | |
207 | */ | |
208 | static char *cx88_aud_irqs[32] = { | |
209 | "dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */ | |
210 | NULL, /* reserved */ | |
211 | "dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */ | |
212 | NULL, /* reserved */ | |
213 | "dnf_of", "upf_uf", "rds_dnf_uf", /* 8-10 */ | |
214 | NULL, /* reserved */ | |
215 | "dn_sync", "up_sync", "rds_dn_sync", /* 12-14 */ | |
216 | NULL, /* reserved */ | |
217 | "opc_err", "par_err", "rip_err", /* 16-18 */ | |
218 | "pci_abort", "ber_irq", "mchg_irq" /* 19-21 */ | |
219 | }; | |
220 | ||
221 | /* | |
222 | * BOARD Specific: Threats IRQ audio specific calls | |
223 | */ | |
224 | static void cx8801_aud_irq(snd_cx88_card_t *chip) | |
225 | { | |
226 | struct cx88_core *core = chip->core; | |
227 | u32 status, mask; | |
228 | u32 count; | |
229 | ||
230 | status = cx_read(MO_AUD_INTSTAT); | |
231 | mask = cx_read(MO_AUD_INTMSK); | |
232 | if (0 == (status & mask)) { | |
233 | spin_unlock(&chip->reg_lock); | |
234 | return; | |
235 | } | |
236 | cx_write(MO_AUD_INTSTAT, status); | |
237 | if (debug > 1 || (status & mask & ~0xff)) | |
238 | cx88_print_irqbits(core->name, "irq aud", | |
66623a04 MCC |
239 | cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs), |
240 | status, mask); | |
b7f355d2 MCC |
241 | /* risc op code error */ |
242 | if (status & (1 << 16)) { | |
243 | printk(KERN_WARNING "%s/0: audio risc op code error\n",core->name); | |
244 | cx_clear(MO_AUD_DMACNTRL, 0x11); | |
245 | cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]); | |
246 | } | |
247 | ||
248 | /* risc1 downstream */ | |
249 | if (status & 0x01) { | |
250 | spin_lock(&chip->reg_lock); | |
251 | count = cx_read(MO_AUDD_GPCNT); | |
252 | spin_unlock(&chip->reg_lock); | |
253 | if (chip->read_count == 0) | |
254 | chip->read_count += chip->dma_size; | |
255 | } | |
256 | ||
257 | if (chip->read_count >= chip->period_size) { | |
258 | dprintk(2, "Elapsing period\n"); | |
259 | snd_pcm_period_elapsed(chip->substream); | |
260 | } | |
261 | ||
262 | dprintk(3,"Leaving audio IRQ handler...\n"); | |
263 | ||
264 | /* FIXME: Any other status should deserve a special handling? */ | |
265 | } | |
266 | ||
267 | /* | |
268 | * BOARD Specific: Handles IRQ calls | |
269 | */ | |
7d12e780 | 270 | static irqreturn_t cx8801_irq(int irq, void *dev_id) |
b7f355d2 MCC |
271 | { |
272 | snd_cx88_card_t *chip = dev_id; | |
273 | struct cx88_core *core = chip->core; | |
274 | u32 status; | |
275 | int loop, handled = 0; | |
276 | ||
277 | for (loop = 0; loop < MAX_IRQ_LOOP; loop++) { | |
8ddac9ee TP |
278 | status = cx_read(MO_PCI_INTSTAT) & |
279 | (core->pci_irqmask | PCI_INT_AUDINT); | |
b7f355d2 MCC |
280 | if (0 == status) |
281 | goto out; | |
282 | dprintk( 3, "cx8801_irq\n" ); | |
283 | dprintk( 3, " loop: %d/%d\n", loop, MAX_IRQ_LOOP ); | |
284 | dprintk( 3, " status: %d\n", status ); | |
285 | handled = 1; | |
286 | cx_write(MO_PCI_INTSTAT, status); | |
287 | ||
8ddac9ee | 288 | if (status & PCI_INT_AUDINT) { |
b7f355d2 MCC |
289 | dprintk( 2, " ALSA IRQ handling\n" ); |
290 | cx8801_aud_irq(chip); | |
291 | } | |
292 | }; | |
293 | ||
294 | if (MAX_IRQ_LOOP == loop) { | |
295 | dprintk( 0, "clearing mask\n" ); | |
296 | dprintk(1,"%s/0: irq loop -- clearing mask\n", | |
297 | core->name); | |
8ddac9ee | 298 | cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT); |
b7f355d2 MCC |
299 | } |
300 | ||
301 | out: | |
302 | return IRQ_RETVAL(handled); | |
303 | } | |
304 | ||
305 | ||
306 | static int dsp_buffer_free(snd_cx88_card_t *chip) | |
307 | { | |
308 | BUG_ON(!chip->dma_size); | |
309 | ||
310 | dprintk(2,"Freeing buffer\n"); | |
c7b0ac05 | 311 | videobuf_pci_dma_unmap(chip->pci, &chip->dma_risc); |
b7f355d2 MCC |
312 | videobuf_dma_free(&chip->dma_risc); |
313 | btcx_riscmem_free(chip->pci,&chip->buf->risc); | |
314 | kfree(chip->buf); | |
315 | ||
316 | chip->dma_size = 0; | |
317 | ||
318 | return 0; | |
319 | } | |
320 | ||
321 | /**************************************************************************** | |
322 | ALSA PCM Interface | |
323 | ****************************************************************************/ | |
324 | ||
325 | /* | |
326 | * Digital hardware definition | |
327 | */ | |
f7cbb7fc | 328 | static struct snd_pcm_hardware snd_cx88_digital_hw = { |
b7f355d2 MCC |
329 | .info = SNDRV_PCM_INFO_MMAP | |
330 | SNDRV_PCM_INFO_INTERLEAVED | | |
331 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
332 | SNDRV_PCM_INFO_MMAP_VALID, | |
333 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
334 | ||
335 | .rates = SNDRV_PCM_RATE_48000, | |
336 | .rate_min = 48000, | |
337 | .rate_max = 48000, | |
338 | .channels_min = 1, | |
339 | .channels_max = 2, | |
340 | .buffer_bytes_max = (2*2048), | |
18adfe7a | 341 | .period_bytes_min = 2048, |
b7f355d2 MCC |
342 | .period_bytes_max = 2048, |
343 | .periods_min = 2, | |
18adfe7a | 344 | .periods_max = 2, |
b7f355d2 MCC |
345 | }; |
346 | ||
347 | /* | |
348 | * audio pcm capture runtime free | |
349 | */ | |
f7cbb7fc | 350 | static void snd_card_cx88_runtime_free(struct snd_pcm_runtime *runtime) |
b7f355d2 MCC |
351 | { |
352 | } | |
353 | /* | |
354 | * audio pcm capture open callback | |
355 | */ | |
f7cbb7fc | 356 | static int snd_cx88_pcm_open(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
357 | { |
358 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
f7cbb7fc | 359 | struct snd_pcm_runtime *runtime = substream->runtime; |
b7f355d2 MCC |
360 | int err; |
361 | ||
362 | if (test_and_set_bit(0, &chip->opened)) | |
363 | return -EBUSY; | |
364 | ||
365 | err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); | |
366 | if (err < 0) | |
367 | goto _error; | |
368 | ||
369 | chip->substream = substream; | |
370 | ||
371 | chip->read_count = 0; | |
372 | chip->read_offset = 0; | |
373 | ||
374 | runtime->private_free = snd_card_cx88_runtime_free; | |
375 | runtime->hw = snd_cx88_digital_hw; | |
376 | ||
377 | return 0; | |
378 | _error: | |
379 | dprintk(1,"Error opening PCM!\n"); | |
380 | clear_bit(0, &chip->opened); | |
381 | smp_mb__after_clear_bit(); | |
382 | return err; | |
383 | } | |
384 | ||
385 | /* | |
386 | * audio close callback | |
387 | */ | |
f7cbb7fc | 388 | static int snd_cx88_close(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
389 | { |
390 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
391 | ||
392 | clear_bit(0, &chip->opened); | |
393 | smp_mb__after_clear_bit(); | |
394 | ||
395 | return 0; | |
396 | } | |
397 | ||
398 | /* | |
399 | * hw_params callback | |
400 | */ | |
f7cbb7fc TI |
401 | static int snd_cx88_hw_params(struct snd_pcm_substream * substream, |
402 | struct snd_pcm_hw_params * hw_params) | |
b7f355d2 MCC |
403 | { |
404 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
405 | struct cx88_buffer *buf; | |
406 | ||
407 | if (substream->runtime->dma_area) { | |
408 | dsp_buffer_free(chip); | |
409 | substream->runtime->dma_area = NULL; | |
410 | } | |
411 | ||
412 | ||
413 | chip->period_size = params_period_bytes(hw_params); | |
414 | chip->num_periods = params_periods(hw_params); | |
415 | chip->dma_size = chip->period_size * params_periods(hw_params); | |
416 | ||
417 | BUG_ON(!chip->dma_size); | |
418 | ||
419 | dprintk(1,"Setting buffer\n"); | |
420 | ||
c42cabef | 421 | buf = kzalloc(sizeof(*buf),GFP_KERNEL); |
b7f355d2 MCC |
422 | if (NULL == buf) |
423 | return -ENOMEM; | |
b7f355d2 MCC |
424 | |
425 | buf->vb.memory = V4L2_MEMORY_MMAP; | |
426 | buf->vb.width = chip->period_size; | |
427 | buf->vb.height = chip->num_periods; | |
428 | buf->vb.size = chip->dma_size; | |
429 | buf->vb.field = V4L2_FIELD_NONE; | |
430 | ||
431 | videobuf_dma_init(&buf->vb.dma); | |
432 | videobuf_dma_init_kernel(&buf->vb.dma,PCI_DMA_FROMDEVICE, | |
433 | (PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT)); | |
434 | ||
c7b0ac05 | 435 | videobuf_pci_dma_map(chip->pci,&buf->vb.dma); |
b7f355d2 MCC |
436 | |
437 | ||
438 | cx88_risc_databuffer(chip->pci, &buf->risc, | |
439 | buf->vb.dma.sglist, | |
440 | buf->vb.width, buf->vb.height); | |
441 | ||
442 | buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); | |
443 | buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma); | |
444 | ||
445 | buf->vb.state = STATE_PREPARED; | |
446 | ||
447 | buf->bpl = chip->period_size; | |
448 | chip->buf = buf; | |
449 | chip->dma_risc = buf->vb.dma; | |
450 | ||
451 | dprintk(1,"Buffer ready at %u\n",chip->dma_risc.nr_pages); | |
452 | substream->runtime->dma_area = chip->dma_risc.vmalloc; | |
453 | return 0; | |
454 | } | |
455 | ||
456 | /* | |
457 | * hw free callback | |
458 | */ | |
f7cbb7fc | 459 | static int snd_cx88_hw_free(struct snd_pcm_substream * substream) |
b7f355d2 MCC |
460 | { |
461 | ||
462 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
463 | ||
464 | if (substream->runtime->dma_area) { | |
465 | dsp_buffer_free(chip); | |
466 | substream->runtime->dma_area = NULL; | |
467 | } | |
468 | ||
469 | return 0; | |
470 | } | |
471 | ||
472 | /* | |
473 | * prepare callback | |
474 | */ | |
f7cbb7fc | 475 | static int snd_cx88_prepare(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
476 | { |
477 | return 0; | |
478 | } | |
479 | ||
480 | ||
481 | /* | |
482 | * trigger callback | |
483 | */ | |
f7cbb7fc | 484 | static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd) |
b7f355d2 MCC |
485 | { |
486 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
487 | int err; | |
488 | ||
489 | spin_lock(&chip->reg_lock); | |
490 | ||
491 | switch (cmd) { | |
492 | case SNDRV_PCM_TRIGGER_START: | |
493 | err=_cx88_start_audio_dma(chip); | |
494 | break; | |
495 | case SNDRV_PCM_TRIGGER_STOP: | |
496 | err=_cx88_stop_audio_dma(chip); | |
497 | break; | |
498 | default: | |
499 | err=-EINVAL; | |
500 | break; | |
501 | } | |
502 | ||
503 | spin_unlock(&chip->reg_lock); | |
504 | ||
505 | return err; | |
506 | } | |
507 | ||
508 | /* | |
509 | * pointer callback | |
510 | */ | |
f7cbb7fc | 511 | static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
512 | { |
513 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
f7cbb7fc | 514 | struct snd_pcm_runtime *runtime = substream->runtime; |
b7f355d2 MCC |
515 | |
516 | if (chip->read_count) { | |
517 | chip->read_count -= snd_pcm_lib_period_bytes(substream); | |
518 | chip->read_offset += snd_pcm_lib_period_bytes(substream); | |
519 | if (chip->read_offset == chip->dma_size) | |
520 | chip->read_offset = 0; | |
521 | } | |
522 | ||
523 | dprintk(2, "Pointer time, will return %li, read %li\n",chip->read_offset,chip->read_count); | |
524 | return bytes_to_frames(runtime, chip->read_offset); | |
525 | ||
526 | } | |
527 | ||
528 | /* | |
529 | * operators | |
530 | */ | |
f7cbb7fc | 531 | static struct snd_pcm_ops snd_cx88_pcm_ops = { |
b7f355d2 MCC |
532 | .open = snd_cx88_pcm_open, |
533 | .close = snd_cx88_close, | |
534 | .ioctl = snd_pcm_lib_ioctl, | |
535 | .hw_params = snd_cx88_hw_params, | |
536 | .hw_free = snd_cx88_hw_free, | |
537 | .prepare = snd_cx88_prepare, | |
538 | .trigger = snd_cx88_card_trigger, | |
539 | .pointer = snd_cx88_pointer, | |
540 | }; | |
541 | ||
542 | /* | |
543 | * create a PCM device | |
544 | */ | |
545 | static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name) | |
546 | { | |
547 | int err; | |
f7cbb7fc | 548 | struct snd_pcm *pcm; |
b7f355d2 MCC |
549 | |
550 | err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); | |
551 | if (err < 0) | |
552 | return err; | |
553 | pcm->private_data = chip; | |
554 | strcpy(pcm->name, name); | |
555 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx88_pcm_ops); | |
556 | ||
557 | return 0; | |
558 | } | |
559 | ||
560 | /**************************************************************************** | |
561 | CONTROL INTERFACE | |
562 | ****************************************************************************/ | |
f7cbb7fc TI |
563 | static int snd_cx88_capture_volume_info(struct snd_kcontrol *kcontrol, |
564 | struct snd_ctl_elem_info *info) | |
b7f355d2 MCC |
565 | { |
566 | info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
567 | info->count = 1; | |
568 | info->value.integer.min = 0; | |
569 | info->value.integer.max = 0x3f; | |
570 | ||
571 | return 0; | |
572 | } | |
573 | ||
574 | /* OK - TODO: test it */ | |
f7cbb7fc TI |
575 | static int snd_cx88_capture_volume_get(struct snd_kcontrol *kcontrol, |
576 | struct snd_ctl_elem_value *value) | |
b7f355d2 MCC |
577 | { |
578 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
579 | struct cx88_core *core=chip->core; | |
580 | ||
581 | value->value.integer.value[0] = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f); | |
582 | ||
583 | return 0; | |
584 | } | |
585 | ||
586 | /* OK - TODO: test it */ | |
f7cbb7fc TI |
587 | static int snd_cx88_capture_volume_put(struct snd_kcontrol *kcontrol, |
588 | struct snd_ctl_elem_value *value) | |
b7f355d2 MCC |
589 | { |
590 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
591 | struct cx88_core *core=chip->core; | |
592 | int v; | |
593 | u32 old_control; | |
594 | ||
595 | spin_lock_irq(&chip->reg_lock); | |
596 | old_control = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f); | |
597 | v = 0x3f - (value->value.integer.value[0] & 0x3f); | |
598 | cx_andor(AUD_VOL_CTL, 0x3f, v); | |
599 | spin_unlock_irq(&chip->reg_lock); | |
600 | ||
601 | return v != old_control; | |
602 | } | |
603 | ||
f7cbb7fc | 604 | static struct snd_kcontrol_new snd_cx88_capture_volume = { |
b7f355d2 MCC |
605 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
606 | .name = "Capture Volume", | |
607 | .info = snd_cx88_capture_volume_info, | |
608 | .get = snd_cx88_capture_volume_get, | |
609 | .put = snd_cx88_capture_volume_put, | |
610 | }; | |
611 | ||
612 | ||
613 | /**************************************************************************** | |
614 | Basic Flow for Sound Devices | |
615 | ****************************************************************************/ | |
616 | ||
617 | /* | |
618 | * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio | |
619 | * Only boards with eeprom and byte 1 at eeprom=1 have it | |
620 | */ | |
621 | ||
396c9b92 | 622 | static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = { |
b7f355d2 MCC |
623 | {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, |
624 | {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, | |
625 | {0, } | |
626 | }; | |
627 | MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl); | |
628 | ||
629 | /* | |
630 | * Chip-specific destructor | |
631 | */ | |
632 | ||
633 | static int snd_cx88_free(snd_cx88_card_t *chip) | |
634 | { | |
635 | ||
636 | if (chip->irq >= 0){ | |
637 | synchronize_irq(chip->irq); | |
638 | free_irq(chip->irq, chip); | |
639 | } | |
640 | ||
641 | cx88_core_put(chip->core,chip->pci); | |
642 | ||
643 | pci_disable_device(chip->pci); | |
644 | return 0; | |
645 | } | |
646 | ||
647 | /* | |
648 | * Component Destructor | |
649 | */ | |
f7cbb7fc | 650 | static void snd_cx88_dev_free(struct snd_card * card) |
b7f355d2 MCC |
651 | { |
652 | snd_cx88_card_t *chip = card->private_data; | |
653 | ||
654 | snd_cx88_free(chip); | |
655 | } | |
656 | ||
657 | ||
658 | /* | |
659 | * Alsa Constructor - Component probe | |
660 | */ | |
661 | ||
a5ed425c | 662 | static int devno; |
f7cbb7fc TI |
663 | static int __devinit snd_cx88_create(struct snd_card *card, |
664 | struct pci_dev *pci, | |
665 | snd_cx88_card_t **rchip) | |
b7f355d2 MCC |
666 | { |
667 | snd_cx88_card_t *chip; | |
668 | struct cx88_core *core; | |
669 | int err; | |
670 | ||
671 | *rchip = NULL; | |
672 | ||
673 | err = pci_enable_device(pci); | |
674 | if (err < 0) | |
675 | return err; | |
676 | ||
677 | pci_set_master(pci); | |
678 | ||
679 | chip = (snd_cx88_card_t *) card->private_data; | |
680 | ||
681 | core = cx88_core_get(pci); | |
31dcbf99 DS |
682 | if (NULL == core) { |
683 | err = -EINVAL; | |
684 | kfree (chip); | |
685 | return err; | |
686 | } | |
b7f355d2 | 687 | |
aaa40cb8 | 688 | if (!pci_dma_supported(pci,DMA_32BIT_MASK)) { |
b7f355d2 MCC |
689 | dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name); |
690 | err = -EIO; | |
691 | cx88_core_put(core,pci); | |
692 | return err; | |
693 | } | |
694 | ||
695 | ||
696 | /* pci init */ | |
697 | chip->card = card; | |
698 | chip->pci = pci; | |
699 | chip->irq = -1; | |
700 | spin_lock_init(&chip->reg_lock); | |
701 | ||
b7f355d2 MCC |
702 | chip->core = core; |
703 | ||
704 | /* get irq */ | |
705 | err = request_irq(chip->pci->irq, cx8801_irq, | |
8076fe32 | 706 | IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip); |
b7f355d2 MCC |
707 | if (err < 0) { |
708 | dprintk(0, "%s: can't get IRQ %d\n", | |
709 | chip->core->name, chip->pci->irq); | |
710 | return err; | |
711 | } | |
712 | ||
713 | /* print pci info */ | |
714 | pci_read_config_byte(pci, PCI_CLASS_REVISION, &chip->pci_rev); | |
715 | pci_read_config_byte(pci, PCI_LATENCY_TIMER, &chip->pci_lat); | |
716 | ||
717 | dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, " | |
228aef63 | 718 | "latency: %d, mmio: 0x%llx\n", core->name, devno, |
b7f355d2 | 719 | pci_name(pci), chip->pci_rev, pci->irq, |
228aef63 | 720 | chip->pci_lat,(unsigned long long)pci_resource_start(pci,0)); |
b7f355d2 MCC |
721 | |
722 | chip->irq = pci->irq; | |
723 | synchronize_irq(chip->irq); | |
724 | ||
725 | snd_card_set_dev(card, &pci->dev); | |
726 | ||
727 | *rchip = chip; | |
728 | ||
729 | return 0; | |
730 | } | |
731 | ||
732 | static int __devinit cx88_audio_initdev(struct pci_dev *pci, | |
733 | const struct pci_device_id *pci_id) | |
734 | { | |
f7cbb7fc | 735 | struct snd_card *card; |
b7f355d2 MCC |
736 | snd_cx88_card_t *chip; |
737 | int err; | |
738 | ||
739 | if (devno >= SNDRV_CARDS) | |
740 | return (-ENODEV); | |
741 | ||
742 | if (!enable[devno]) { | |
743 | ++devno; | |
744 | return (-ENOENT); | |
745 | } | |
746 | ||
747 | card = snd_card_new(index[devno], id[devno], THIS_MODULE, sizeof(snd_cx88_card_t)); | |
748 | if (!card) | |
749 | return (-ENOMEM); | |
750 | ||
751 | card->private_free = snd_cx88_dev_free; | |
752 | ||
753 | err = snd_cx88_create(card, pci, &chip); | |
754 | if (err < 0) | |
755 | return (err); | |
756 | ||
757 | err = snd_cx88_pcm(chip, 0, "CX88 Digital"); | |
758 | ||
759 | if (err < 0) { | |
760 | snd_card_free(card); | |
761 | return (err); | |
762 | } | |
763 | ||
764 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_capture_volume, chip)); | |
765 | if (err < 0) { | |
766 | snd_card_free(card); | |
767 | return (err); | |
768 | } | |
769 | ||
770 | strcpy (card->driver, "CX88x"); | |
771 | sprintf(card->shortname, "Conexant CX%x", pci->device); | |
228aef63 GKH |
772 | sprintf(card->longname, "%s at %#llx", |
773 | card->shortname,(unsigned long long)pci_resource_start(pci, 0)); | |
b7f355d2 MCC |
774 | strcpy (card->mixername, "CX88"); |
775 | ||
776 | dprintk (0, "%s/%i: ALSA support for cx2388x boards\n", | |
777 | card->driver,devno); | |
778 | ||
779 | err = snd_card_register(card); | |
780 | if (err < 0) { | |
781 | snd_card_free(card); | |
782 | return (err); | |
783 | } | |
784 | snd_cx88_cards[devno] = card; | |
785 | ||
786 | pci_set_drvdata(pci,card); | |
787 | ||
788 | devno++; | |
789 | return 0; | |
790 | } | |
791 | /* | |
792 | * ALSA destructor | |
793 | */ | |
794 | static void __devexit cx88_audio_finidev(struct pci_dev *pci) | |
795 | { | |
796 | struct cx88_audio_dev *card = pci_get_drvdata(pci); | |
797 | ||
798 | snd_card_free((void *)card); | |
799 | ||
800 | pci_set_drvdata(pci, NULL); | |
801 | ||
802 | devno--; | |
803 | } | |
804 | ||
805 | /* | |
806 | * PCI driver definition | |
807 | */ | |
808 | ||
809 | static struct pci_driver cx88_audio_pci_driver = { | |
810 | .name = "cx88_audio", | |
811 | .id_table = cx88_audio_pci_tbl, | |
812 | .probe = cx88_audio_initdev, | |
813 | .remove = cx88_audio_finidev, | |
b7f355d2 MCC |
814 | }; |
815 | ||
816 | /**************************************************************************** | |
817 | LINUX MODULE INIT | |
818 | ****************************************************************************/ | |
819 | ||
820 | /* | |
821 | * module init | |
822 | */ | |
823 | static int cx88_audio_init(void) | |
824 | { | |
825 | printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n", | |
826 | (CX88_VERSION_CODE >> 16) & 0xff, | |
827 | (CX88_VERSION_CODE >> 8) & 0xff, | |
828 | CX88_VERSION_CODE & 0xff); | |
829 | #ifdef SNAPSHOT | |
830 | printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n", | |
831 | SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100); | |
832 | #endif | |
833 | return pci_register_driver(&cx88_audio_pci_driver); | |
834 | } | |
835 | ||
836 | /* | |
837 | * module remove | |
838 | */ | |
839 | static void cx88_audio_fini(void) | |
840 | { | |
841 | ||
842 | pci_unregister_driver(&cx88_audio_pci_driver); | |
843 | } | |
844 | ||
845 | module_init(cx88_audio_init); | |
846 | module_exit(cx88_audio_fini); | |
847 | ||
848 | /* ----------------------------------------------------------- */ | |
849 | /* | |
850 | * Local variables: | |
851 | * c-basic-offset: 8 | |
852 | * End: | |
853 | */ |