Commit | Line | Data |
---|---|---|
b7f355d2 MCC |
1 | /* |
2 | * | |
3 | * Support for audio capture | |
4 | * PCI function #1 of the cx2388x. | |
5 | * | |
05b27233 | 6 | * (c) 2007 Trent Piepho <xyzzy@speakeasy.org> |
b7f355d2 | 7 | * (c) 2005,2006 Ricardo Cerqueira <v4l@cerqueira.org> |
2e7c6dc3 | 8 | * (c) 2005 Mauro Carvalho Chehab <mchehab@infradead.org> |
b7f355d2 | 9 | * Based on a dummy cx88 module by Gerd Knorr <kraxel@bytesex.org> |
c1017a4c | 10 | * Based on dummy.c by Jaroslav Kysela <perex@perex.cz> |
b7f355d2 MCC |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | */ | |
26 | ||
27 | #include <linux/module.h> | |
28 | #include <linux/init.h> | |
29 | #include <linux/device.h> | |
30 | #include <linux/interrupt.h> | |
f6210c91 | 31 | #include <linux/vmalloc.h> |
c24228da | 32 | #include <linux/dma-mapping.h> |
19453bc1 | 33 | #include <linux/pci.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
c24228da | 35 | |
b7f355d2 | 36 | #include <asm/delay.h> |
b7f355d2 MCC |
37 | #include <sound/core.h> |
38 | #include <sound/pcm.h> | |
39 | #include <sound/pcm_params.h> | |
40 | #include <sound/control.h> | |
41 | #include <sound/initval.h> | |
bbaccc04 | 42 | #include <sound/tlv.h> |
6951803c | 43 | #include <media/wm8775.h> |
b7f355d2 MCC |
44 | |
45 | #include "cx88.h" | |
46 | #include "cx88-reg.h" | |
47 | ||
48 | #define dprintk(level,fmt, arg...) if (debug >= level) \ | |
49 | printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg) | |
50 | ||
51 | #define dprintk_core(level,fmt, arg...) if (debug >= level) \ | |
52 | printk(KERN_DEBUG "%s/1: " fmt, chip->core->name , ## arg) | |
53 | ||
b7f355d2 MCC |
54 | /**************************************************************************** |
55 | Data type declarations - Can be moded to a header file later | |
56 | ****************************************************************************/ | |
57 | ||
fecfedeb LP |
58 | struct cx88_audio_buffer { |
59 | unsigned int bpl; | |
60 | struct btcx_riscmem risc; | |
61 | struct videobuf_dmabuf dma; | |
62 | }; | |
63 | ||
b7f355d2 MCC |
64 | struct cx88_audio_dev { |
65 | struct cx88_core *core; | |
66 | struct cx88_dmaqueue q; | |
67 | ||
68 | /* pci i/o */ | |
69 | struct pci_dev *pci; | |
b7f355d2 MCC |
70 | |
71 | /* audio controls */ | |
72 | int irq; | |
73 | ||
f7cbb7fc | 74 | struct snd_card *card; |
b7f355d2 MCC |
75 | |
76 | spinlock_t reg_lock; | |
05b27233 | 77 | atomic_t count; |
b7f355d2 MCC |
78 | |
79 | unsigned int dma_size; | |
80 | unsigned int period_size; | |
81 | unsigned int num_periods; | |
82 | ||
c1accaa2 | 83 | struct videobuf_dmabuf *dma_risc; |
b7f355d2 | 84 | |
fecfedeb | 85 | struct cx88_audio_buffer *buf; |
b7f355d2 | 86 | |
05b27233 | 87 | struct snd_pcm_substream *substream; |
b7f355d2 MCC |
88 | }; |
89 | typedef struct cx88_audio_dev snd_cx88_card_t; | |
90 | ||
91 | ||
92 | ||
93 | /**************************************************************************** | |
94 | Module global static vars | |
95 | ****************************************************************************/ | |
96 | ||
97 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | |
2e4e98e7 | 98 | static const char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
b7f355d2 | 99 | static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1}; |
b7f355d2 MCC |
100 | |
101 | module_param_array(enable, bool, NULL, 0444); | |
102 | MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled."); | |
103 | ||
104 | module_param_array(index, int, NULL, 0444); | |
105 | MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s)."); | |
106 | ||
107 | ||
108 | /**************************************************************************** | |
109 | Module macros | |
110 | ****************************************************************************/ | |
111 | ||
112 | MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards"); | |
113 | MODULE_AUTHOR("Ricardo Cerqueira"); | |
2e7c6dc3 | 114 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>"); |
b7f355d2 MCC |
115 | MODULE_LICENSE("GPL"); |
116 | MODULE_SUPPORTED_DEVICE("{{Conexant,23881}," | |
117 | "{{Conexant,23882}," | |
118 | "{{Conexant,23883}"); | |
a5ed425c | 119 | static unsigned int debug; |
b7f355d2 MCC |
120 | module_param(debug,int,0644); |
121 | MODULE_PARM_DESC(debug,"enable debug messages"); | |
122 | ||
123 | /**************************************************************************** | |
124 | Module specific funtions | |
125 | ****************************************************************************/ | |
126 | ||
127 | /* | |
128 | * BOARD Specific: Sets audio DMA | |
129 | */ | |
130 | ||
be8a82d1 | 131 | static int _cx88_start_audio_dma(snd_cx88_card_t *chip) |
b7f355d2 | 132 | { |
fecfedeb | 133 | struct cx88_audio_buffer *buf = chip->buf; |
b7f355d2 | 134 | struct cx88_core *core=chip->core; |
2e4e98e7 | 135 | const struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25]; |
b7f355d2 | 136 | |
59fd8f8d TP |
137 | /* Make sure RISC/FIFO are off before changing FIFO/RISC settings */ |
138 | cx_clear(MO_AUD_DMACNTRL, 0x11); | |
b7f355d2 MCC |
139 | |
140 | /* setup fifo + format - out channel */ | |
59fd8f8d | 141 | cx88_sram_channel_setup(chip->core, audio_ch, buf->bpl, buf->risc.dma); |
b7f355d2 MCC |
142 | |
143 | /* sets bpl size */ | |
144 | cx_write(MO_AUDD_LNGTH, buf->bpl); | |
145 | ||
146 | /* reset counter */ | |
05b27233 TP |
147 | cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET); |
148 | atomic_set(&chip->count, 0); | |
b7f355d2 | 149 | |
05b27233 TP |
150 | dprintk(1, "Start audio DMA, %d B/line, %d lines/FIFO, %d periods, %d " |
151 | "byte buffer\n", buf->bpl, cx_read(audio_ch->cmds_start + 8)>>1, | |
59fd8f8d TP |
152 | chip->num_periods, buf->bpl * chip->num_periods); |
153 | ||
b7f355d2 | 154 | /* Enables corresponding bits at AUD_INT_STAT */ |
59fd8f8d TP |
155 | cx_write(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | |
156 | AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1); | |
157 | ||
158 | /* Clean any pending interrupt bits already set */ | |
159 | cx_write(MO_AUD_INTSTAT, ~0); | |
160 | ||
161 | /* enable audio irqs */ | |
162 | cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | PCI_INT_AUDINT); | |
b7f355d2 MCC |
163 | |
164 | /* start dma */ | |
165 | cx_set(MO_DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */ | |
166 | cx_set(MO_AUD_DMACNTRL, 0x11); /* audio downstream FIFO and RISC enable */ | |
167 | ||
168 | if (debug) | |
59fd8f8d | 169 | cx88_sram_channel_dump(chip->core, audio_ch); |
b7f355d2 MCC |
170 | |
171 | return 0; | |
172 | } | |
173 | ||
174 | /* | |
175 | * BOARD Specific: Resets audio DMA | |
176 | */ | |
be8a82d1 | 177 | static int _cx88_stop_audio_dma(snd_cx88_card_t *chip) |
b7f355d2 MCC |
178 | { |
179 | struct cx88_core *core=chip->core; | |
180 | dprintk(1, "Stopping audio DMA\n"); | |
181 | ||
182 | /* stop dma */ | |
183 | cx_clear(MO_AUD_DMACNTRL, 0x11); | |
184 | ||
185 | /* disable irqs */ | |
8ddac9ee | 186 | cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT); |
59fd8f8d TP |
187 | cx_clear(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | |
188 | AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1); | |
b7f355d2 MCC |
189 | |
190 | if (debug) | |
191 | cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]); | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
05b27233 | 196 | #define MAX_IRQ_LOOP 50 |
b7f355d2 MCC |
197 | |
198 | /* | |
199 | * BOARD Specific: IRQ dma bits | |
200 | */ | |
2e4e98e7 | 201 | static const char *cx88_aud_irqs[32] = { |
b7f355d2 MCC |
202 | "dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */ |
203 | NULL, /* reserved */ | |
204 | "dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */ | |
205 | NULL, /* reserved */ | |
206 | "dnf_of", "upf_uf", "rds_dnf_uf", /* 8-10 */ | |
207 | NULL, /* reserved */ | |
208 | "dn_sync", "up_sync", "rds_dn_sync", /* 12-14 */ | |
209 | NULL, /* reserved */ | |
210 | "opc_err", "par_err", "rip_err", /* 16-18 */ | |
211 | "pci_abort", "ber_irq", "mchg_irq" /* 19-21 */ | |
212 | }; | |
213 | ||
214 | /* | |
215 | * BOARD Specific: Threats IRQ audio specific calls | |
216 | */ | |
217 | static void cx8801_aud_irq(snd_cx88_card_t *chip) | |
218 | { | |
219 | struct cx88_core *core = chip->core; | |
220 | u32 status, mask; | |
b7f355d2 MCC |
221 | |
222 | status = cx_read(MO_AUD_INTSTAT); | |
223 | mask = cx_read(MO_AUD_INTMSK); | |
05b27233 | 224 | if (0 == (status & mask)) |
b7f355d2 | 225 | return; |
b7f355d2 MCC |
226 | cx_write(MO_AUD_INTSTAT, status); |
227 | if (debug > 1 || (status & mask & ~0xff)) | |
228 | cx88_print_irqbits(core->name, "irq aud", | |
66623a04 MCC |
229 | cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs), |
230 | status, mask); | |
b7f355d2 | 231 | /* risc op code error */ |
59fd8f8d | 232 | if (status & AUD_INT_OPC_ERR) { |
05b27233 | 233 | printk(KERN_WARNING "%s/1: Audio risc op code error\n",core->name); |
b7f355d2 MCC |
234 | cx_clear(MO_AUD_DMACNTRL, 0x11); |
235 | cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]); | |
236 | } | |
05b27233 TP |
237 | if (status & AUD_INT_DN_SYNC) { |
238 | dprintk(1, "Downstream sync error\n"); | |
239 | cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET); | |
240 | return; | |
241 | } | |
b7f355d2 | 242 | /* risc1 downstream */ |
59fd8f8d | 243 | if (status & AUD_INT_DN_RISCI1) { |
05b27233 | 244 | atomic_set(&chip->count, cx_read(MO_AUDD_GPCNT)); |
b7f355d2 MCC |
245 | snd_pcm_period_elapsed(chip->substream); |
246 | } | |
b7f355d2 MCC |
247 | /* FIXME: Any other status should deserve a special handling? */ |
248 | } | |
249 | ||
250 | /* | |
251 | * BOARD Specific: Handles IRQ calls | |
252 | */ | |
7d12e780 | 253 | static irqreturn_t cx8801_irq(int irq, void *dev_id) |
b7f355d2 MCC |
254 | { |
255 | snd_cx88_card_t *chip = dev_id; | |
256 | struct cx88_core *core = chip->core; | |
257 | u32 status; | |
258 | int loop, handled = 0; | |
259 | ||
260 | for (loop = 0; loop < MAX_IRQ_LOOP; loop++) { | |
8ddac9ee TP |
261 | status = cx_read(MO_PCI_INTSTAT) & |
262 | (core->pci_irqmask | PCI_INT_AUDINT); | |
b7f355d2 MCC |
263 | if (0 == status) |
264 | goto out; | |
05b27233 TP |
265 | dprintk(3, "cx8801_irq loop %d/%d, status %x\n", |
266 | loop, MAX_IRQ_LOOP, status); | |
b7f355d2 MCC |
267 | handled = 1; |
268 | cx_write(MO_PCI_INTSTAT, status); | |
269 | ||
5ba862b7 TP |
270 | if (status & core->pci_irqmask) |
271 | cx88_core_irq(core, status); | |
05b27233 | 272 | if (status & PCI_INT_AUDINT) |
b7f355d2 | 273 | cx8801_aud_irq(chip); |
05b27233 | 274 | } |
b7f355d2 MCC |
275 | |
276 | if (MAX_IRQ_LOOP == loop) { | |
05b27233 TP |
277 | printk(KERN_ERR |
278 | "%s/1: IRQ loop detected, disabling interrupts\n", | |
b7f355d2 | 279 | core->name); |
8ddac9ee | 280 | cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT); |
b7f355d2 MCC |
281 | } |
282 | ||
283 | out: | |
284 | return IRQ_RETVAL(handled); | |
285 | } | |
286 | ||
287 | ||
288 | static int dsp_buffer_free(snd_cx88_card_t *chip) | |
289 | { | |
290 | BUG_ON(!chip->dma_size); | |
291 | ||
292 | dprintk(2,"Freeing buffer\n"); | |
95268403 | 293 | videobuf_dma_unmap(&chip->pci->dev, chip->dma_risc); |
c1accaa2 | 294 | videobuf_dma_free(chip->dma_risc); |
b7f355d2 MCC |
295 | btcx_riscmem_free(chip->pci,&chip->buf->risc); |
296 | kfree(chip->buf); | |
297 | ||
c1accaa2 | 298 | chip->dma_risc = NULL; |
b7f355d2 MCC |
299 | chip->dma_size = 0; |
300 | ||
05b27233 | 301 | return 0; |
b7f355d2 MCC |
302 | } |
303 | ||
304 | /**************************************************************************** | |
305 | ALSA PCM Interface | |
306 | ****************************************************************************/ | |
307 | ||
308 | /* | |
309 | * Digital hardware definition | |
310 | */ | |
05b27233 | 311 | #define DEFAULT_FIFO_SIZE 4096 |
2e4e98e7 | 312 | static const struct snd_pcm_hardware snd_cx88_digital_hw = { |
b7f355d2 MCC |
313 | .info = SNDRV_PCM_INFO_MMAP | |
314 | SNDRV_PCM_INFO_INTERLEAVED | | |
315 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
316 | SNDRV_PCM_INFO_MMAP_VALID, | |
317 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
318 | ||
319 | .rates = SNDRV_PCM_RATE_48000, | |
320 | .rate_min = 48000, | |
321 | .rate_max = 48000, | |
5a5b3b5d | 322 | .channels_min = 2, |
b7f355d2 | 323 | .channels_max = 2, |
05b27233 TP |
324 | /* Analog audio output will be full of clicks and pops if there |
325 | are not exactly four lines in the SRAM FIFO buffer. */ | |
326 | .period_bytes_min = DEFAULT_FIFO_SIZE/4, | |
327 | .period_bytes_max = DEFAULT_FIFO_SIZE/4, | |
328 | .periods_min = 1, | |
329 | .periods_max = 1024, | |
330 | .buffer_bytes_max = (1024*1024), | |
b7f355d2 MCC |
331 | }; |
332 | ||
b7f355d2 MCC |
333 | /* |
334 | * audio pcm capture open callback | |
335 | */ | |
f7cbb7fc | 336 | static int snd_cx88_pcm_open(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
337 | { |
338 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
f7cbb7fc | 339 | struct snd_pcm_runtime *runtime = substream->runtime; |
b7f355d2 MCC |
340 | int err; |
341 | ||
83ee87a3 MCC |
342 | if (!chip) { |
343 | printk(KERN_ERR "BUG: cx88 can't find device struct." | |
344 | " Can't proceed with open\n"); | |
345 | return -ENODEV; | |
346 | } | |
347 | ||
05b27233 | 348 | err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS); |
b7f355d2 MCC |
349 | if (err < 0) |
350 | goto _error; | |
351 | ||
352 | chip->substream = substream; | |
353 | ||
b7f355d2 MCC |
354 | runtime->hw = snd_cx88_digital_hw; |
355 | ||
05b27233 TP |
356 | if (cx88_sram_channels[SRAM_CH25].fifo_size != DEFAULT_FIFO_SIZE) { |
357 | unsigned int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4; | |
358 | bpl &= ~7; /* must be multiple of 8 */ | |
359 | runtime->hw.period_bytes_min = bpl; | |
360 | runtime->hw.period_bytes_max = bpl; | |
361 | } | |
362 | ||
b7f355d2 MCC |
363 | return 0; |
364 | _error: | |
365 | dprintk(1,"Error opening PCM!\n"); | |
b7f355d2 MCC |
366 | return err; |
367 | } | |
368 | ||
369 | /* | |
370 | * audio close callback | |
371 | */ | |
f7cbb7fc | 372 | static int snd_cx88_close(struct snd_pcm_substream *substream) |
b7f355d2 | 373 | { |
b7f355d2 MCC |
374 | return 0; |
375 | } | |
376 | ||
377 | /* | |
378 | * hw_params callback | |
379 | */ | |
f7cbb7fc TI |
380 | static int snd_cx88_hw_params(struct snd_pcm_substream * substream, |
381 | struct snd_pcm_hw_params * hw_params) | |
b7f355d2 MCC |
382 | { |
383 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
c1accaa2 MCC |
384 | struct videobuf_dmabuf *dma; |
385 | ||
fecfedeb | 386 | struct cx88_audio_buffer *buf; |
05b27233 | 387 | int ret; |
b7f355d2 MCC |
388 | |
389 | if (substream->runtime->dma_area) { | |
390 | dsp_buffer_free(chip); | |
391 | substream->runtime->dma_area = NULL; | |
392 | } | |
393 | ||
b7f355d2 MCC |
394 | chip->period_size = params_period_bytes(hw_params); |
395 | chip->num_periods = params_periods(hw_params); | |
396 | chip->dma_size = chip->period_size * params_periods(hw_params); | |
397 | ||
398 | BUG_ON(!chip->dma_size); | |
05b27233 | 399 | BUG_ON(chip->num_periods & (chip->num_periods-1)); |
b7f355d2 | 400 | |
fecfedeb | 401 | buf = kzalloc(sizeof(*buf), GFP_KERNEL); |
b7f355d2 MCC |
402 | if (NULL == buf) |
403 | return -ENOMEM; | |
b7f355d2 | 404 | |
fecfedeb | 405 | buf->bpl = chip->period_size; |
b7f355d2 | 406 | |
fecfedeb | 407 | dma = &buf->dma; |
c1accaa2 MCC |
408 | videobuf_dma_init(dma); |
409 | ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE, | |
fecfedeb | 410 | (PAGE_ALIGN(chip->dma_size) >> PAGE_SHIFT)); |
05b27233 TP |
411 | if (ret < 0) |
412 | goto error; | |
b7f355d2 | 413 | |
95268403 | 414 | ret = videobuf_dma_map(&chip->pci->dev, dma); |
05b27233 TP |
415 | if (ret < 0) |
416 | goto error; | |
b7f355d2 | 417 | |
c1accaa2 | 418 | ret = cx88_risc_databuffer(chip->pci, &buf->risc, dma->sglist, |
fecfedeb | 419 | chip->period_size, chip->num_periods, 1); |
05b27233 TP |
420 | if (ret < 0) |
421 | goto error; | |
b7f355d2 | 422 | |
05b27233 TP |
423 | /* Loop back to start of program */ |
424 | buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC); | |
b7f355d2 MCC |
425 | buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma); |
426 | ||
b7f355d2 | 427 | chip->buf = buf; |
c1accaa2 | 428 | chip->dma_risc = dma; |
b7f355d2 | 429 | |
bb6dbe74 | 430 | substream->runtime->dma_area = chip->dma_risc->vaddr; |
f6210c91 TP |
431 | substream->runtime->dma_bytes = chip->dma_size; |
432 | substream->runtime->dma_addr = 0; | |
b7f355d2 | 433 | return 0; |
05b27233 TP |
434 | |
435 | error: | |
436 | kfree(buf); | |
437 | return ret; | |
b7f355d2 MCC |
438 | } |
439 | ||
440 | /* | |
441 | * hw free callback | |
442 | */ | |
f7cbb7fc | 443 | static int snd_cx88_hw_free(struct snd_pcm_substream * substream) |
b7f355d2 MCC |
444 | { |
445 | ||
446 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
447 | ||
448 | if (substream->runtime->dma_area) { | |
449 | dsp_buffer_free(chip); | |
450 | substream->runtime->dma_area = NULL; | |
451 | } | |
452 | ||
453 | return 0; | |
454 | } | |
455 | ||
456 | /* | |
457 | * prepare callback | |
458 | */ | |
f7cbb7fc | 459 | static int snd_cx88_prepare(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
460 | { |
461 | return 0; | |
462 | } | |
463 | ||
b7f355d2 MCC |
464 | /* |
465 | * trigger callback | |
466 | */ | |
f7cbb7fc | 467 | static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd) |
b7f355d2 MCC |
468 | { |
469 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
470 | int err; | |
471 | ||
05b27233 | 472 | /* Local interrupts are already disabled by ALSA */ |
b7f355d2 MCC |
473 | spin_lock(&chip->reg_lock); |
474 | ||
475 | switch (cmd) { | |
476 | case SNDRV_PCM_TRIGGER_START: | |
477 | err=_cx88_start_audio_dma(chip); | |
478 | break; | |
479 | case SNDRV_PCM_TRIGGER_STOP: | |
480 | err=_cx88_stop_audio_dma(chip); | |
481 | break; | |
482 | default: | |
483 | err=-EINVAL; | |
484 | break; | |
485 | } | |
486 | ||
487 | spin_unlock(&chip->reg_lock); | |
488 | ||
489 | return err; | |
490 | } | |
491 | ||
492 | /* | |
493 | * pointer callback | |
494 | */ | |
f7cbb7fc | 495 | static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
496 | { |
497 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
f7cbb7fc | 498 | struct snd_pcm_runtime *runtime = substream->runtime; |
05b27233 | 499 | u16 count; |
b7f355d2 | 500 | |
05b27233 | 501 | count = atomic_read(&chip->count); |
b7f355d2 | 502 | |
32d83efc | 503 | // dprintk(2, "%s - count %d (+%u), period %d, frame %lu\n", __func__, |
05b27233 TP |
504 | // count, new, count & (runtime->periods-1), |
505 | // runtime->period_size * (count & (runtime->periods-1))); | |
506 | return runtime->period_size * (count & (runtime->periods-1)); | |
b7f355d2 MCC |
507 | } |
508 | ||
f6210c91 TP |
509 | /* |
510 | * page callback (needed for mmap) | |
511 | */ | |
512 | static struct page *snd_cx88_page(struct snd_pcm_substream *substream, | |
513 | unsigned long offset) | |
514 | { | |
515 | void *pageptr = substream->runtime->dma_area + offset; | |
516 | return vmalloc_to_page(pageptr); | |
517 | } | |
518 | ||
b7f355d2 MCC |
519 | /* |
520 | * operators | |
521 | */ | |
f7cbb7fc | 522 | static struct snd_pcm_ops snd_cx88_pcm_ops = { |
b7f355d2 MCC |
523 | .open = snd_cx88_pcm_open, |
524 | .close = snd_cx88_close, | |
525 | .ioctl = snd_pcm_lib_ioctl, | |
526 | .hw_params = snd_cx88_hw_params, | |
527 | .hw_free = snd_cx88_hw_free, | |
528 | .prepare = snd_cx88_prepare, | |
529 | .trigger = snd_cx88_card_trigger, | |
530 | .pointer = snd_cx88_pointer, | |
f6210c91 | 531 | .page = snd_cx88_page, |
b7f355d2 MCC |
532 | }; |
533 | ||
534 | /* | |
535 | * create a PCM device | |
536 | */ | |
2e4e98e7 | 537 | static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, const char *name) |
b7f355d2 MCC |
538 | { |
539 | int err; | |
f7cbb7fc | 540 | struct snd_pcm *pcm; |
b7f355d2 MCC |
541 | |
542 | err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); | |
543 | if (err < 0) | |
544 | return err; | |
545 | pcm->private_data = chip; | |
546 | strcpy(pcm->name, name); | |
547 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx88_pcm_ops); | |
548 | ||
549 | return 0; | |
550 | } | |
551 | ||
552 | /**************************************************************************** | |
553 | CONTROL INTERFACE | |
554 | ****************************************************************************/ | |
54ac005a TP |
555 | static int snd_cx88_volume_info(struct snd_kcontrol *kcontrol, |
556 | struct snd_ctl_elem_info *info) | |
b7f355d2 MCC |
557 | { |
558 | info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
82896f29 | 559 | info->count = 2; |
b7f355d2 MCC |
560 | info->value.integer.min = 0; |
561 | info->value.integer.max = 0x3f; | |
562 | ||
563 | return 0; | |
564 | } | |
565 | ||
54ac005a TP |
566 | static int snd_cx88_volume_get(struct snd_kcontrol *kcontrol, |
567 | struct snd_ctl_elem_value *value) | |
b7f355d2 MCC |
568 | { |
569 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
570 | struct cx88_core *core=chip->core; | |
82896f29 TP |
571 | int vol = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f), |
572 | bal = cx_read(AUD_BAL_CTL); | |
b7f355d2 | 573 | |
82896f29 TP |
574 | value->value.integer.value[(bal & 0x40) ? 0 : 1] = vol; |
575 | vol -= (bal & 0x3f); | |
576 | value->value.integer.value[(bal & 0x40) ? 1 : 0] = vol < 0 ? 0 : vol; | |
b7f355d2 MCC |
577 | |
578 | return 0; | |
579 | } | |
580 | ||
6951803c LR |
581 | static void snd_cx88_wm8775_volume_put(struct snd_kcontrol *kcontrol, |
582 | struct snd_ctl_elem_value *value) | |
583 | { | |
584 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
585 | struct cx88_core *core = chip->core; | |
586 | struct v4l2_control client_ctl; | |
587 | int left = value->value.integer.value[0]; | |
588 | int right = value->value.integer.value[1]; | |
589 | int v, b; | |
590 | ||
591 | memset(&client_ctl, 0, sizeof(client_ctl)); | |
592 | ||
593 | /* Pass volume & balance onto any WM8775 */ | |
594 | if (left >= right) { | |
595 | v = left << 10; | |
596 | b = left ? (0x8000 * right) / left : 0x8000; | |
597 | } else { | |
598 | v = right << 10; | |
599 | b = right ? 0xffff - (0x8000 * left) / right : 0x8000; | |
600 | } | |
601 | client_ctl.value = v; | |
602 | client_ctl.id = V4L2_CID_AUDIO_VOLUME; | |
603 | call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl); | |
604 | ||
605 | client_ctl.value = b; | |
606 | client_ctl.id = V4L2_CID_AUDIO_BALANCE; | |
607 | call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl); | |
608 | } | |
609 | ||
b7f355d2 | 610 | /* OK - TODO: test it */ |
54ac005a TP |
611 | static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol, |
612 | struct snd_ctl_elem_value *value) | |
b7f355d2 MCC |
613 | { |
614 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
615 | struct cx88_core *core=chip->core; | |
cca80b97 | 616 | int left, right, v, b; |
82896f29 TP |
617 | int changed = 0; |
618 | u32 old; | |
619 | ||
6951803c LR |
620 | if (core->board.audio_chip == V4L2_IDENT_WM8775) |
621 | snd_cx88_wm8775_volume_put(kcontrol, value); | |
622 | ||
cca80b97 CL |
623 | left = value->value.integer.value[0] & 0x3f; |
624 | right = value->value.integer.value[1] & 0x3f; | |
625 | b = right - left; | |
82896f29 | 626 | if (b < 0) { |
6951803c LR |
627 | v = 0x3f - left; |
628 | b = (-b) | 0x40; | |
82896f29 | 629 | } else { |
6951803c | 630 | v = 0x3f - right; |
82896f29 | 631 | } |
05b27233 | 632 | /* Do we really know this will always be called with IRQs on? */ |
b7f355d2 | 633 | spin_lock_irq(&chip->reg_lock); |
82896f29 TP |
634 | old = cx_read(AUD_VOL_CTL); |
635 | if (v != (old & 0x3f)) { | |
6951803c LR |
636 | cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, (old & ~0x3f) | v); |
637 | changed = 1; | |
82896f29 | 638 | } |
6951803c LR |
639 | if ((cx_read(AUD_BAL_CTL) & 0x7f) != b) { |
640 | cx_write(AUD_BAL_CTL, b); | |
641 | changed = 1; | |
82896f29 | 642 | } |
b7f355d2 MCC |
643 | spin_unlock_irq(&chip->reg_lock); |
644 | ||
82896f29 | 645 | return changed; |
b7f355d2 MCC |
646 | } |
647 | ||
bbaccc04 TP |
648 | static const DECLARE_TLV_DB_SCALE(snd_cx88_db_scale, -6300, 100, 0); |
649 | ||
2e4e98e7 | 650 | static const struct snd_kcontrol_new snd_cx88_volume = { |
b7f355d2 | 651 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
bbaccc04 TP |
652 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | |
653 | SNDRV_CTL_ELEM_ACCESS_TLV_READ, | |
6951803c | 654 | .name = "Analog-TV Volume", |
54ac005a TP |
655 | .info = snd_cx88_volume_info, |
656 | .get = snd_cx88_volume_get, | |
657 | .put = snd_cx88_volume_put, | |
bbaccc04 | 658 | .tlv.p = snd_cx88_db_scale, |
b7f355d2 MCC |
659 | }; |
660 | ||
54ac005a TP |
661 | static int snd_cx88_switch_get(struct snd_kcontrol *kcontrol, |
662 | struct snd_ctl_elem_value *value) | |
663 | { | |
664 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
665 | struct cx88_core *core = chip->core; | |
666 | u32 bit = kcontrol->private_value; | |
667 | ||
668 | value->value.integer.value[0] = !(cx_read(AUD_VOL_CTL) & bit); | |
669 | return 0; | |
670 | } | |
671 | ||
672 | static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol, | |
673 | struct snd_ctl_elem_value *value) | |
674 | { | |
675 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
676 | struct cx88_core *core = chip->core; | |
677 | u32 bit = kcontrol->private_value; | |
678 | int ret = 0; | |
679 | u32 vol; | |
680 | ||
681 | spin_lock_irq(&chip->reg_lock); | |
682 | vol = cx_read(AUD_VOL_CTL); | |
683 | if (value->value.integer.value[0] != !(vol & bit)) { | |
684 | vol ^= bit; | |
6951803c LR |
685 | cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, vol); |
686 | /* Pass mute onto any WM8775 */ | |
687 | if ((core->board.audio_chip == V4L2_IDENT_WM8775) && | |
688 | ((1<<6) == bit)) { | |
689 | struct v4l2_control client_ctl; | |
690 | ||
691 | memset(&client_ctl, 0, sizeof(client_ctl)); | |
692 | client_ctl.value = 0 != (vol & bit); | |
693 | client_ctl.id = V4L2_CID_AUDIO_MUTE; | |
694 | call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl); | |
695 | } | |
54ac005a TP |
696 | ret = 1; |
697 | } | |
698 | spin_unlock_irq(&chip->reg_lock); | |
699 | return ret; | |
700 | } | |
701 | ||
2e4e98e7 | 702 | static const struct snd_kcontrol_new snd_cx88_dac_switch = { |
54ac005a | 703 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
6951803c | 704 | .name = "Audio-Out Switch", |
54ac005a TP |
705 | .info = snd_ctl_boolean_mono_info, |
706 | .get = snd_cx88_switch_get, | |
707 | .put = snd_cx88_switch_put, | |
708 | .private_value = (1<<8), | |
709 | }; | |
710 | ||
2e4e98e7 | 711 | static const struct snd_kcontrol_new snd_cx88_source_switch = { |
54ac005a | 712 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
6951803c | 713 | .name = "Analog-TV Switch", |
54ac005a TP |
714 | .info = snd_ctl_boolean_mono_info, |
715 | .get = snd_cx88_switch_get, | |
716 | .put = snd_cx88_switch_put, | |
717 | .private_value = (1<<6), | |
718 | }; | |
b7f355d2 | 719 | |
6951803c LR |
720 | static int snd_cx88_alc_get(struct snd_kcontrol *kcontrol, |
721 | struct snd_ctl_elem_value *value) | |
722 | { | |
723 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
724 | struct cx88_core *core = chip->core; | |
725 | struct v4l2_control client_ctl; | |
726 | ||
727 | memset(&client_ctl, 0, sizeof(client_ctl)); | |
728 | client_ctl.id = V4L2_CID_AUDIO_LOUDNESS; | |
729 | call_hw(core, WM8775_GID, core, g_ctrl, &client_ctl); | |
730 | value->value.integer.value[0] = client_ctl.value ? 1 : 0; | |
731 | ||
732 | return 0; | |
733 | } | |
734 | ||
735 | static int snd_cx88_alc_put(struct snd_kcontrol *kcontrol, | |
736 | struct snd_ctl_elem_value *value) | |
737 | { | |
738 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
739 | struct cx88_core *core = chip->core; | |
740 | struct v4l2_control client_ctl; | |
741 | ||
742 | memset(&client_ctl, 0, sizeof(client_ctl)); | |
743 | client_ctl.value = 0 != value->value.integer.value[0]; | |
744 | client_ctl.id = V4L2_CID_AUDIO_LOUDNESS; | |
745 | call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl); | |
746 | ||
747 | return 0; | |
748 | } | |
749 | ||
750 | static struct snd_kcontrol_new snd_cx88_alc_switch = { | |
751 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
752 | .name = "Line-In ALC Switch", | |
753 | .info = snd_ctl_boolean_mono_info, | |
754 | .get = snd_cx88_alc_get, | |
755 | .put = snd_cx88_alc_put, | |
756 | }; | |
757 | ||
b7f355d2 MCC |
758 | /**************************************************************************** |
759 | Basic Flow for Sound Devices | |
760 | ****************************************************************************/ | |
761 | ||
762 | /* | |
763 | * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio | |
764 | * Only boards with eeprom and byte 1 at eeprom=1 have it | |
765 | */ | |
766 | ||
2e4e98e7 | 767 | static const struct pci_device_id const cx88_audio_pci_tbl[] __devinitdata = { |
b7f355d2 MCC |
768 | {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, |
769 | {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, | |
770 | {0, } | |
771 | }; | |
772 | MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl); | |
773 | ||
774 | /* | |
775 | * Chip-specific destructor | |
776 | */ | |
777 | ||
778 | static int snd_cx88_free(snd_cx88_card_t *chip) | |
779 | { | |
780 | ||
f000fd80 | 781 | if (chip->irq >= 0) |
b7f355d2 | 782 | free_irq(chip->irq, chip); |
b7f355d2 MCC |
783 | |
784 | cx88_core_put(chip->core,chip->pci); | |
785 | ||
786 | pci_disable_device(chip->pci); | |
787 | return 0; | |
788 | } | |
789 | ||
790 | /* | |
791 | * Component Destructor | |
792 | */ | |
f7cbb7fc | 793 | static void snd_cx88_dev_free(struct snd_card * card) |
b7f355d2 MCC |
794 | { |
795 | snd_cx88_card_t *chip = card->private_data; | |
796 | ||
797 | snd_cx88_free(chip); | |
798 | } | |
799 | ||
800 | ||
801 | /* | |
802 | * Alsa Constructor - Component probe | |
803 | */ | |
804 | ||
a5ed425c | 805 | static int devno; |
f7cbb7fc TI |
806 | static int __devinit snd_cx88_create(struct snd_card *card, |
807 | struct pci_dev *pci, | |
6951803c LR |
808 | snd_cx88_card_t **rchip, |
809 | struct cx88_core **core_ptr) | |
b7f355d2 MCC |
810 | { |
811 | snd_cx88_card_t *chip; | |
812 | struct cx88_core *core; | |
813 | int err; | |
19453bc1 | 814 | unsigned char pci_lat; |
b7f355d2 MCC |
815 | |
816 | *rchip = NULL; | |
817 | ||
818 | err = pci_enable_device(pci); | |
819 | if (err < 0) | |
820 | return err; | |
821 | ||
822 | pci_set_master(pci); | |
823 | ||
abf84383 | 824 | chip = card->private_data; |
b7f355d2 MCC |
825 | |
826 | core = cx88_core_get(pci); | |
31dcbf99 DS |
827 | if (NULL == core) { |
828 | err = -EINVAL; | |
31dcbf99 DS |
829 | return err; |
830 | } | |
b7f355d2 | 831 | |
284901a9 | 832 | if (!pci_dma_supported(pci,DMA_BIT_MASK(32))) { |
b7f355d2 MCC |
833 | dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name); |
834 | err = -EIO; | |
6951803c | 835 | cx88_core_put(core, pci); |
b7f355d2 MCC |
836 | return err; |
837 | } | |
838 | ||
839 | ||
840 | /* pci init */ | |
841 | chip->card = card; | |
842 | chip->pci = pci; | |
843 | chip->irq = -1; | |
844 | spin_lock_init(&chip->reg_lock); | |
845 | ||
b7f355d2 MCC |
846 | chip->core = core; |
847 | ||
848 | /* get irq */ | |
849 | err = request_irq(chip->pci->irq, cx8801_irq, | |
8076fe32 | 850 | IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip); |
b7f355d2 MCC |
851 | if (err < 0) { |
852 | dprintk(0, "%s: can't get IRQ %d\n", | |
853 | chip->core->name, chip->pci->irq); | |
854 | return err; | |
855 | } | |
856 | ||
857 | /* print pci info */ | |
19453bc1 | 858 | pci_read_config_byte(pci, PCI_LATENCY_TIMER, &pci_lat); |
b7f355d2 MCC |
859 | |
860 | dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, " | |
228aef63 | 861 | "latency: %d, mmio: 0x%llx\n", core->name, devno, |
19453bc1 TP |
862 | pci_name(pci), pci->revision, pci->irq, |
863 | pci_lat, (unsigned long long)pci_resource_start(pci,0)); | |
b7f355d2 MCC |
864 | |
865 | chip->irq = pci->irq; | |
866 | synchronize_irq(chip->irq); | |
867 | ||
868 | snd_card_set_dev(card, &pci->dev); | |
869 | ||
870 | *rchip = chip; | |
6951803c | 871 | *core_ptr = core; |
b7f355d2 MCC |
872 | |
873 | return 0; | |
874 | } | |
875 | ||
876 | static int __devinit cx88_audio_initdev(struct pci_dev *pci, | |
877 | const struct pci_device_id *pci_id) | |
878 | { | |
f7cbb7fc | 879 | struct snd_card *card; |
b7f355d2 | 880 | snd_cx88_card_t *chip; |
d6972cc8 | 881 | struct cx88_core *core = NULL; |
b7f355d2 MCC |
882 | int err; |
883 | ||
884 | if (devno >= SNDRV_CARDS) | |
885 | return (-ENODEV); | |
886 | ||
887 | if (!enable[devno]) { | |
888 | ++devno; | |
889 | return (-ENOENT); | |
890 | } | |
891 | ||
758021bf TI |
892 | err = snd_card_create(index[devno], id[devno], THIS_MODULE, |
893 | sizeof(snd_cx88_card_t), &card); | |
894 | if (err < 0) | |
895 | return err; | |
b7f355d2 MCC |
896 | |
897 | card->private_free = snd_cx88_dev_free; | |
898 | ||
6951803c | 899 | err = snd_cx88_create(card, pci, &chip, &core); |
b7f355d2 | 900 | if (err < 0) |
a8782f66 | 901 | goto error; |
b7f355d2 MCC |
902 | |
903 | err = snd_cx88_pcm(chip, 0, "CX88 Digital"); | |
82896f29 TP |
904 | if (err < 0) |
905 | goto error; | |
b7f355d2 | 906 | |
54ac005a TP |
907 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_volume, chip)); |
908 | if (err < 0) | |
909 | goto error; | |
910 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_dac_switch, chip)); | |
911 | if (err < 0) | |
912 | goto error; | |
913 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_source_switch, chip)); | |
82896f29 TP |
914 | if (err < 0) |
915 | goto error; | |
b7f355d2 | 916 | |
6951803c LR |
917 | /* If there's a wm8775 then add a Line-In ALC switch */ |
918 | if (core->board.audio_chip == V4L2_IDENT_WM8775) | |
919 | snd_ctl_add(card, snd_ctl_new1(&snd_cx88_alc_switch, chip)); | |
920 | ||
b7f355d2 MCC |
921 | strcpy (card->driver, "CX88x"); |
922 | sprintf(card->shortname, "Conexant CX%x", pci->device); | |
228aef63 GKH |
923 | sprintf(card->longname, "%s at %#llx", |
924 | card->shortname,(unsigned long long)pci_resource_start(pci, 0)); | |
b7f355d2 MCC |
925 | strcpy (card->mixername, "CX88"); |
926 | ||
927 | dprintk (0, "%s/%i: ALSA support for cx2388x boards\n", | |
928 | card->driver,devno); | |
929 | ||
930 | err = snd_card_register(card); | |
82896f29 TP |
931 | if (err < 0) |
932 | goto error; | |
b7f355d2 MCC |
933 | pci_set_drvdata(pci,card); |
934 | ||
935 | devno++; | |
936 | return 0; | |
82896f29 TP |
937 | |
938 | error: | |
939 | snd_card_free(card); | |
940 | return err; | |
b7f355d2 MCC |
941 | } |
942 | /* | |
943 | * ALSA destructor | |
944 | */ | |
945 | static void __devexit cx88_audio_finidev(struct pci_dev *pci) | |
946 | { | |
947 | struct cx88_audio_dev *card = pci_get_drvdata(pci); | |
948 | ||
949 | snd_card_free((void *)card); | |
950 | ||
951 | pci_set_drvdata(pci, NULL); | |
952 | ||
953 | devno--; | |
954 | } | |
955 | ||
956 | /* | |
957 | * PCI driver definition | |
958 | */ | |
959 | ||
960 | static struct pci_driver cx88_audio_pci_driver = { | |
961 | .name = "cx88_audio", | |
962 | .id_table = cx88_audio_pci_tbl, | |
963 | .probe = cx88_audio_initdev, | |
e36bc31f | 964 | .remove = __devexit_p(cx88_audio_finidev), |
b7f355d2 MCC |
965 | }; |
966 | ||
967 | /**************************************************************************** | |
968 | LINUX MODULE INIT | |
969 | ****************************************************************************/ | |
970 | ||
971 | /* | |
972 | * module init | |
973 | */ | |
e36bc31f | 974 | static int __init cx88_audio_init(void) |
b7f355d2 MCC |
975 | { |
976 | printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n", | |
977 | (CX88_VERSION_CODE >> 16) & 0xff, | |
978 | (CX88_VERSION_CODE >> 8) & 0xff, | |
979 | CX88_VERSION_CODE & 0xff); | |
980 | #ifdef SNAPSHOT | |
981 | printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n", | |
982 | SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100); | |
983 | #endif | |
984 | return pci_register_driver(&cx88_audio_pci_driver); | |
985 | } | |
986 | ||
987 | /* | |
988 | * module remove | |
989 | */ | |
e36bc31f | 990 | static void __exit cx88_audio_fini(void) |
b7f355d2 | 991 | { |
b7f355d2 MCC |
992 | pci_unregister_driver(&cx88_audio_pci_driver); |
993 | } | |
994 | ||
995 | module_init(cx88_audio_init); | |
996 | module_exit(cx88_audio_fini); | |
997 | ||
998 | /* ----------------------------------------------------------- */ | |
999 | /* | |
1000 | * Local variables: | |
1001 | * c-basic-offset: 8 | |
1002 | * End: | |
1003 | */ |