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> |
c24228da | 34 | |
b7f355d2 MCC |
35 | #include <asm/delay.h> |
36 | #include <sound/driver.h> | |
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> | |
42 | ||
43 | #include "cx88.h" | |
44 | #include "cx88-reg.h" | |
45 | ||
46 | #define dprintk(level,fmt, arg...) if (debug >= level) \ | |
47 | printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg) | |
48 | ||
49 | #define dprintk_core(level,fmt, arg...) if (debug >= level) \ | |
50 | printk(KERN_DEBUG "%s/1: " fmt, chip->core->name , ## arg) | |
51 | ||
b7f355d2 MCC |
52 | /**************************************************************************** |
53 | Data type declarations - Can be moded to a header file later | |
54 | ****************************************************************************/ | |
55 | ||
b7f355d2 MCC |
56 | struct cx88_audio_dev { |
57 | struct cx88_core *core; | |
58 | struct cx88_dmaqueue q; | |
59 | ||
60 | /* pci i/o */ | |
61 | struct pci_dev *pci; | |
b7f355d2 MCC |
62 | |
63 | /* audio controls */ | |
64 | int irq; | |
65 | ||
f7cbb7fc | 66 | struct snd_card *card; |
b7f355d2 MCC |
67 | |
68 | spinlock_t reg_lock; | |
05b27233 | 69 | atomic_t count; |
b7f355d2 MCC |
70 | |
71 | unsigned int dma_size; | |
72 | unsigned int period_size; | |
73 | unsigned int num_periods; | |
74 | ||
c1accaa2 | 75 | struct videobuf_dmabuf *dma_risc; |
b7f355d2 | 76 | |
05b27233 | 77 | struct cx88_buffer *buf; |
b7f355d2 | 78 | |
05b27233 | 79 | struct snd_pcm_substream *substream; |
b7f355d2 MCC |
80 | }; |
81 | typedef struct cx88_audio_dev snd_cx88_card_t; | |
82 | ||
83 | ||
84 | ||
85 | /**************************************************************************** | |
86 | Module global static vars | |
87 | ****************************************************************************/ | |
88 | ||
89 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | |
90 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
91 | static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1}; | |
b7f355d2 MCC |
92 | |
93 | module_param_array(enable, bool, NULL, 0444); | |
94 | MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled."); | |
95 | ||
96 | module_param_array(index, int, NULL, 0444); | |
97 | MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s)."); | |
98 | ||
99 | ||
100 | /**************************************************************************** | |
101 | Module macros | |
102 | ****************************************************************************/ | |
103 | ||
104 | MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards"); | |
105 | MODULE_AUTHOR("Ricardo Cerqueira"); | |
2e7c6dc3 | 106 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>"); |
b7f355d2 MCC |
107 | MODULE_LICENSE("GPL"); |
108 | MODULE_SUPPORTED_DEVICE("{{Conexant,23881}," | |
109 | "{{Conexant,23882}," | |
110 | "{{Conexant,23883}"); | |
a5ed425c | 111 | static unsigned int debug; |
b7f355d2 MCC |
112 | module_param(debug,int,0644); |
113 | MODULE_PARM_DESC(debug,"enable debug messages"); | |
114 | ||
115 | /**************************************************************************** | |
116 | Module specific funtions | |
117 | ****************************************************************************/ | |
118 | ||
119 | /* | |
120 | * BOARD Specific: Sets audio DMA | |
121 | */ | |
122 | ||
be8a82d1 | 123 | static int _cx88_start_audio_dma(snd_cx88_card_t *chip) |
b7f355d2 MCC |
124 | { |
125 | struct cx88_buffer *buf = chip->buf; | |
126 | struct cx88_core *core=chip->core; | |
127 | struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25]; | |
128 | ||
59fd8f8d TP |
129 | /* Make sure RISC/FIFO are off before changing FIFO/RISC settings */ |
130 | cx_clear(MO_AUD_DMACNTRL, 0x11); | |
b7f355d2 MCC |
131 | |
132 | /* setup fifo + format - out channel */ | |
59fd8f8d | 133 | cx88_sram_channel_setup(chip->core, audio_ch, buf->bpl, buf->risc.dma); |
b7f355d2 MCC |
134 | |
135 | /* sets bpl size */ | |
136 | cx_write(MO_AUDD_LNGTH, buf->bpl); | |
137 | ||
138 | /* reset counter */ | |
05b27233 TP |
139 | cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET); |
140 | atomic_set(&chip->count, 0); | |
b7f355d2 | 141 | |
05b27233 TP |
142 | dprintk(1, "Start audio DMA, %d B/line, %d lines/FIFO, %d periods, %d " |
143 | "byte buffer\n", buf->bpl, cx_read(audio_ch->cmds_start + 8)>>1, | |
59fd8f8d TP |
144 | chip->num_periods, buf->bpl * chip->num_periods); |
145 | ||
b7f355d2 | 146 | /* Enables corresponding bits at AUD_INT_STAT */ |
59fd8f8d TP |
147 | cx_write(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | |
148 | AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1); | |
149 | ||
150 | /* Clean any pending interrupt bits already set */ | |
151 | cx_write(MO_AUD_INTSTAT, ~0); | |
152 | ||
153 | /* enable audio irqs */ | |
154 | cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | PCI_INT_AUDINT); | |
b7f355d2 MCC |
155 | |
156 | /* start dma */ | |
157 | cx_set(MO_DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */ | |
158 | cx_set(MO_AUD_DMACNTRL, 0x11); /* audio downstream FIFO and RISC enable */ | |
159 | ||
160 | if (debug) | |
59fd8f8d | 161 | cx88_sram_channel_dump(chip->core, audio_ch); |
b7f355d2 MCC |
162 | |
163 | return 0; | |
164 | } | |
165 | ||
166 | /* | |
167 | * BOARD Specific: Resets audio DMA | |
168 | */ | |
be8a82d1 | 169 | static int _cx88_stop_audio_dma(snd_cx88_card_t *chip) |
b7f355d2 MCC |
170 | { |
171 | struct cx88_core *core=chip->core; | |
172 | dprintk(1, "Stopping audio DMA\n"); | |
173 | ||
174 | /* stop dma */ | |
175 | cx_clear(MO_AUD_DMACNTRL, 0x11); | |
176 | ||
177 | /* disable irqs */ | |
8ddac9ee | 178 | cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT); |
59fd8f8d TP |
179 | cx_clear(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | |
180 | AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1); | |
b7f355d2 MCC |
181 | |
182 | if (debug) | |
183 | cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]); | |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
05b27233 | 188 | #define MAX_IRQ_LOOP 50 |
b7f355d2 MCC |
189 | |
190 | /* | |
191 | * BOARD Specific: IRQ dma bits | |
192 | */ | |
193 | static char *cx88_aud_irqs[32] = { | |
194 | "dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */ | |
195 | NULL, /* reserved */ | |
196 | "dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */ | |
197 | NULL, /* reserved */ | |
198 | "dnf_of", "upf_uf", "rds_dnf_uf", /* 8-10 */ | |
199 | NULL, /* reserved */ | |
200 | "dn_sync", "up_sync", "rds_dn_sync", /* 12-14 */ | |
201 | NULL, /* reserved */ | |
202 | "opc_err", "par_err", "rip_err", /* 16-18 */ | |
203 | "pci_abort", "ber_irq", "mchg_irq" /* 19-21 */ | |
204 | }; | |
205 | ||
206 | /* | |
207 | * BOARD Specific: Threats IRQ audio specific calls | |
208 | */ | |
209 | static void cx8801_aud_irq(snd_cx88_card_t *chip) | |
210 | { | |
211 | struct cx88_core *core = chip->core; | |
212 | u32 status, mask; | |
b7f355d2 MCC |
213 | |
214 | status = cx_read(MO_AUD_INTSTAT); | |
215 | mask = cx_read(MO_AUD_INTMSK); | |
05b27233 | 216 | if (0 == (status & mask)) |
b7f355d2 | 217 | return; |
b7f355d2 MCC |
218 | cx_write(MO_AUD_INTSTAT, status); |
219 | if (debug > 1 || (status & mask & ~0xff)) | |
220 | cx88_print_irqbits(core->name, "irq aud", | |
66623a04 MCC |
221 | cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs), |
222 | status, mask); | |
b7f355d2 | 223 | /* risc op code error */ |
59fd8f8d | 224 | if (status & AUD_INT_OPC_ERR) { |
05b27233 | 225 | printk(KERN_WARNING "%s/1: Audio risc op code error\n",core->name); |
b7f355d2 MCC |
226 | cx_clear(MO_AUD_DMACNTRL, 0x11); |
227 | cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]); | |
228 | } | |
05b27233 TP |
229 | if (status & AUD_INT_DN_SYNC) { |
230 | dprintk(1, "Downstream sync error\n"); | |
231 | cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET); | |
232 | return; | |
233 | } | |
b7f355d2 | 234 | /* risc1 downstream */ |
59fd8f8d | 235 | if (status & AUD_INT_DN_RISCI1) { |
05b27233 | 236 | atomic_set(&chip->count, cx_read(MO_AUDD_GPCNT)); |
b7f355d2 MCC |
237 | snd_pcm_period_elapsed(chip->substream); |
238 | } | |
b7f355d2 MCC |
239 | /* FIXME: Any other status should deserve a special handling? */ |
240 | } | |
241 | ||
242 | /* | |
243 | * BOARD Specific: Handles IRQ calls | |
244 | */ | |
7d12e780 | 245 | static irqreturn_t cx8801_irq(int irq, void *dev_id) |
b7f355d2 MCC |
246 | { |
247 | snd_cx88_card_t *chip = dev_id; | |
248 | struct cx88_core *core = chip->core; | |
249 | u32 status; | |
250 | int loop, handled = 0; | |
251 | ||
252 | for (loop = 0; loop < MAX_IRQ_LOOP; loop++) { | |
8ddac9ee TP |
253 | status = cx_read(MO_PCI_INTSTAT) & |
254 | (core->pci_irqmask | PCI_INT_AUDINT); | |
b7f355d2 MCC |
255 | if (0 == status) |
256 | goto out; | |
05b27233 TP |
257 | dprintk(3, "cx8801_irq loop %d/%d, status %x\n", |
258 | loop, MAX_IRQ_LOOP, status); | |
b7f355d2 MCC |
259 | handled = 1; |
260 | cx_write(MO_PCI_INTSTAT, status); | |
261 | ||
5ba862b7 TP |
262 | if (status & core->pci_irqmask) |
263 | cx88_core_irq(core, status); | |
05b27233 | 264 | if (status & PCI_INT_AUDINT) |
b7f355d2 | 265 | cx8801_aud_irq(chip); |
05b27233 | 266 | } |
b7f355d2 MCC |
267 | |
268 | if (MAX_IRQ_LOOP == loop) { | |
05b27233 TP |
269 | printk(KERN_ERR |
270 | "%s/1: IRQ loop detected, disabling interrupts\n", | |
b7f355d2 | 271 | core->name); |
8ddac9ee | 272 | cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT); |
b7f355d2 MCC |
273 | } |
274 | ||
275 | out: | |
276 | return IRQ_RETVAL(handled); | |
277 | } | |
278 | ||
279 | ||
280 | static int dsp_buffer_free(snd_cx88_card_t *chip) | |
281 | { | |
282 | BUG_ON(!chip->dma_size); | |
283 | ||
284 | dprintk(2,"Freeing buffer\n"); | |
c1accaa2 MCC |
285 | videobuf_pci_dma_unmap(chip->pci, chip->dma_risc); |
286 | videobuf_dma_free(chip->dma_risc); | |
b7f355d2 MCC |
287 | btcx_riscmem_free(chip->pci,&chip->buf->risc); |
288 | kfree(chip->buf); | |
289 | ||
c1accaa2 | 290 | chip->dma_risc = NULL; |
b7f355d2 MCC |
291 | chip->dma_size = 0; |
292 | ||
05b27233 | 293 | return 0; |
b7f355d2 MCC |
294 | } |
295 | ||
296 | /**************************************************************************** | |
297 | ALSA PCM Interface | |
298 | ****************************************************************************/ | |
299 | ||
300 | /* | |
301 | * Digital hardware definition | |
302 | */ | |
05b27233 | 303 | #define DEFAULT_FIFO_SIZE 4096 |
f7cbb7fc | 304 | static struct snd_pcm_hardware snd_cx88_digital_hw = { |
b7f355d2 MCC |
305 | .info = SNDRV_PCM_INFO_MMAP | |
306 | SNDRV_PCM_INFO_INTERLEAVED | | |
307 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
308 | SNDRV_PCM_INFO_MMAP_VALID, | |
309 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
310 | ||
311 | .rates = SNDRV_PCM_RATE_48000, | |
312 | .rate_min = 48000, | |
313 | .rate_max = 48000, | |
5a5b3b5d | 314 | .channels_min = 2, |
b7f355d2 | 315 | .channels_max = 2, |
05b27233 TP |
316 | /* Analog audio output will be full of clicks and pops if there |
317 | are not exactly four lines in the SRAM FIFO buffer. */ | |
318 | .period_bytes_min = DEFAULT_FIFO_SIZE/4, | |
319 | .period_bytes_max = DEFAULT_FIFO_SIZE/4, | |
320 | .periods_min = 1, | |
321 | .periods_max = 1024, | |
322 | .buffer_bytes_max = (1024*1024), | |
b7f355d2 MCC |
323 | }; |
324 | ||
b7f355d2 MCC |
325 | /* |
326 | * audio pcm capture open callback | |
327 | */ | |
f7cbb7fc | 328 | static int snd_cx88_pcm_open(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
329 | { |
330 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
f7cbb7fc | 331 | struct snd_pcm_runtime *runtime = substream->runtime; |
b7f355d2 MCC |
332 | int err; |
333 | ||
05b27233 | 334 | err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS); |
b7f355d2 MCC |
335 | if (err < 0) |
336 | goto _error; | |
337 | ||
338 | chip->substream = substream; | |
339 | ||
b7f355d2 MCC |
340 | runtime->hw = snd_cx88_digital_hw; |
341 | ||
05b27233 TP |
342 | if (cx88_sram_channels[SRAM_CH25].fifo_size != DEFAULT_FIFO_SIZE) { |
343 | unsigned int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4; | |
344 | bpl &= ~7; /* must be multiple of 8 */ | |
345 | runtime->hw.period_bytes_min = bpl; | |
346 | runtime->hw.period_bytes_max = bpl; | |
347 | } | |
348 | ||
b7f355d2 MCC |
349 | return 0; |
350 | _error: | |
351 | dprintk(1,"Error opening PCM!\n"); | |
b7f355d2 MCC |
352 | return err; |
353 | } | |
354 | ||
355 | /* | |
356 | * audio close callback | |
357 | */ | |
f7cbb7fc | 358 | static int snd_cx88_close(struct snd_pcm_substream *substream) |
b7f355d2 | 359 | { |
b7f355d2 MCC |
360 | return 0; |
361 | } | |
362 | ||
363 | /* | |
364 | * hw_params callback | |
365 | */ | |
f7cbb7fc TI |
366 | static int snd_cx88_hw_params(struct snd_pcm_substream * substream, |
367 | struct snd_pcm_hw_params * hw_params) | |
b7f355d2 MCC |
368 | { |
369 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
c1accaa2 MCC |
370 | struct videobuf_dmabuf *dma; |
371 | ||
b7f355d2 | 372 | struct cx88_buffer *buf; |
05b27233 | 373 | int ret; |
b7f355d2 MCC |
374 | |
375 | if (substream->runtime->dma_area) { | |
376 | dsp_buffer_free(chip); | |
377 | substream->runtime->dma_area = NULL; | |
378 | } | |
379 | ||
b7f355d2 MCC |
380 | chip->period_size = params_period_bytes(hw_params); |
381 | chip->num_periods = params_periods(hw_params); | |
382 | chip->dma_size = chip->period_size * params_periods(hw_params); | |
383 | ||
384 | BUG_ON(!chip->dma_size); | |
05b27233 | 385 | BUG_ON(chip->num_periods & (chip->num_periods-1)); |
b7f355d2 | 386 | |
c1accaa2 | 387 | buf = videobuf_pci_alloc(sizeof(*buf)); |
b7f355d2 MCC |
388 | if (NULL == buf) |
389 | return -ENOMEM; | |
b7f355d2 MCC |
390 | |
391 | buf->vb.memory = V4L2_MEMORY_MMAP; | |
05b27233 | 392 | buf->vb.field = V4L2_FIELD_NONE; |
b7f355d2 | 393 | buf->vb.width = chip->period_size; |
05b27233 | 394 | buf->bpl = chip->period_size; |
b7f355d2 MCC |
395 | buf->vb.height = chip->num_periods; |
396 | buf->vb.size = chip->dma_size; | |
b7f355d2 | 397 | |
c1accaa2 MCC |
398 | dma=videobuf_to_dma(&buf->vb); |
399 | videobuf_dma_init(dma); | |
400 | ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE, | |
b7f355d2 | 401 | (PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT)); |
05b27233 TP |
402 | if (ret < 0) |
403 | goto error; | |
b7f355d2 | 404 | |
c1accaa2 | 405 | ret = videobuf_pci_dma_map(chip->pci,dma); |
05b27233 TP |
406 | if (ret < 0) |
407 | goto error; | |
b7f355d2 | 408 | |
c1accaa2 | 409 | ret = cx88_risc_databuffer(chip->pci, &buf->risc, dma->sglist, |
05b27233 TP |
410 | buf->vb.width, buf->vb.height, 1); |
411 | if (ret < 0) | |
412 | goto error; | |
b7f355d2 | 413 | |
05b27233 TP |
414 | /* Loop back to start of program */ |
415 | buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC); | |
b7f355d2 MCC |
416 | buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma); |
417 | ||
418 | buf->vb.state = STATE_PREPARED; | |
419 | ||
b7f355d2 | 420 | chip->buf = buf; |
c1accaa2 | 421 | chip->dma_risc = dma; |
b7f355d2 | 422 | |
c1accaa2 | 423 | substream->runtime->dma_area = chip->dma_risc->vmalloc; |
f6210c91 TP |
424 | substream->runtime->dma_bytes = chip->dma_size; |
425 | substream->runtime->dma_addr = 0; | |
b7f355d2 | 426 | return 0; |
05b27233 TP |
427 | |
428 | error: | |
429 | kfree(buf); | |
430 | return ret; | |
b7f355d2 MCC |
431 | } |
432 | ||
433 | /* | |
434 | * hw free callback | |
435 | */ | |
f7cbb7fc | 436 | static int snd_cx88_hw_free(struct snd_pcm_substream * substream) |
b7f355d2 MCC |
437 | { |
438 | ||
439 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
440 | ||
441 | if (substream->runtime->dma_area) { | |
442 | dsp_buffer_free(chip); | |
443 | substream->runtime->dma_area = NULL; | |
444 | } | |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
449 | /* | |
450 | * prepare callback | |
451 | */ | |
f7cbb7fc | 452 | static int snd_cx88_prepare(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
453 | { |
454 | return 0; | |
455 | } | |
456 | ||
b7f355d2 MCC |
457 | /* |
458 | * trigger callback | |
459 | */ | |
f7cbb7fc | 460 | static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd) |
b7f355d2 MCC |
461 | { |
462 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
463 | int err; | |
464 | ||
05b27233 | 465 | /* Local interrupts are already disabled by ALSA */ |
b7f355d2 MCC |
466 | spin_lock(&chip->reg_lock); |
467 | ||
468 | switch (cmd) { | |
469 | case SNDRV_PCM_TRIGGER_START: | |
470 | err=_cx88_start_audio_dma(chip); | |
471 | break; | |
472 | case SNDRV_PCM_TRIGGER_STOP: | |
473 | err=_cx88_stop_audio_dma(chip); | |
474 | break; | |
475 | default: | |
476 | err=-EINVAL; | |
477 | break; | |
478 | } | |
479 | ||
480 | spin_unlock(&chip->reg_lock); | |
481 | ||
482 | return err; | |
483 | } | |
484 | ||
485 | /* | |
486 | * pointer callback | |
487 | */ | |
f7cbb7fc | 488 | static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
489 | { |
490 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
f7cbb7fc | 491 | struct snd_pcm_runtime *runtime = substream->runtime; |
05b27233 | 492 | u16 count; |
b7f355d2 | 493 | |
05b27233 | 494 | count = atomic_read(&chip->count); |
b7f355d2 | 495 | |
05b27233 TP |
496 | // dprintk(2, "%s - count %d (+%u), period %d, frame %lu\n", __FUNCTION__, |
497 | // count, new, count & (runtime->periods-1), | |
498 | // runtime->period_size * (count & (runtime->periods-1))); | |
499 | return runtime->period_size * (count & (runtime->periods-1)); | |
b7f355d2 MCC |
500 | } |
501 | ||
f6210c91 TP |
502 | /* |
503 | * page callback (needed for mmap) | |
504 | */ | |
505 | static struct page *snd_cx88_page(struct snd_pcm_substream *substream, | |
506 | unsigned long offset) | |
507 | { | |
508 | void *pageptr = substream->runtime->dma_area + offset; | |
509 | return vmalloc_to_page(pageptr); | |
510 | } | |
511 | ||
b7f355d2 MCC |
512 | /* |
513 | * operators | |
514 | */ | |
f7cbb7fc | 515 | static struct snd_pcm_ops snd_cx88_pcm_ops = { |
b7f355d2 MCC |
516 | .open = snd_cx88_pcm_open, |
517 | .close = snd_cx88_close, | |
518 | .ioctl = snd_pcm_lib_ioctl, | |
519 | .hw_params = snd_cx88_hw_params, | |
520 | .hw_free = snd_cx88_hw_free, | |
521 | .prepare = snd_cx88_prepare, | |
522 | .trigger = snd_cx88_card_trigger, | |
523 | .pointer = snd_cx88_pointer, | |
f6210c91 | 524 | .page = snd_cx88_page, |
b7f355d2 MCC |
525 | }; |
526 | ||
527 | /* | |
528 | * create a PCM device | |
529 | */ | |
530 | static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name) | |
531 | { | |
532 | int err; | |
f7cbb7fc | 533 | struct snd_pcm *pcm; |
b7f355d2 MCC |
534 | |
535 | err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); | |
536 | if (err < 0) | |
537 | return err; | |
538 | pcm->private_data = chip; | |
539 | strcpy(pcm->name, name); | |
540 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx88_pcm_ops); | |
541 | ||
542 | return 0; | |
543 | } | |
544 | ||
545 | /**************************************************************************** | |
546 | CONTROL INTERFACE | |
547 | ****************************************************************************/ | |
f7cbb7fc TI |
548 | static int snd_cx88_capture_volume_info(struct snd_kcontrol *kcontrol, |
549 | struct snd_ctl_elem_info *info) | |
b7f355d2 MCC |
550 | { |
551 | info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
82896f29 | 552 | info->count = 2; |
b7f355d2 MCC |
553 | info->value.integer.min = 0; |
554 | info->value.integer.max = 0x3f; | |
555 | ||
556 | return 0; | |
557 | } | |
558 | ||
559 | /* OK - TODO: test it */ | |
f7cbb7fc TI |
560 | static int snd_cx88_capture_volume_get(struct snd_kcontrol *kcontrol, |
561 | struct snd_ctl_elem_value *value) | |
b7f355d2 MCC |
562 | { |
563 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
564 | struct cx88_core *core=chip->core; | |
82896f29 TP |
565 | int vol = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f), |
566 | bal = cx_read(AUD_BAL_CTL); | |
b7f355d2 | 567 | |
82896f29 TP |
568 | value->value.integer.value[(bal & 0x40) ? 0 : 1] = vol; |
569 | vol -= (bal & 0x3f); | |
570 | value->value.integer.value[(bal & 0x40) ? 1 : 0] = vol < 0 ? 0 : vol; | |
b7f355d2 MCC |
571 | |
572 | return 0; | |
573 | } | |
574 | ||
575 | /* OK - TODO: test it */ | |
f7cbb7fc TI |
576 | static int snd_cx88_capture_volume_put(struct snd_kcontrol *kcontrol, |
577 | struct snd_ctl_elem_value *value) | |
b7f355d2 MCC |
578 | { |
579 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
580 | struct cx88_core *core=chip->core; | |
82896f29 TP |
581 | int v, b; |
582 | int changed = 0; | |
583 | u32 old; | |
584 | ||
585 | b = value->value.integer.value[1] - value->value.integer.value[0]; | |
586 | if (b < 0) { | |
587 | v = 0x3f - value->value.integer.value[0]; | |
588 | b = (-b) | 0x40; | |
589 | } else { | |
590 | v = 0x3f - value->value.integer.value[1]; | |
591 | } | |
05b27233 | 592 | /* Do we really know this will always be called with IRQs on? */ |
b7f355d2 | 593 | spin_lock_irq(&chip->reg_lock); |
82896f29 TP |
594 | old = cx_read(AUD_VOL_CTL); |
595 | if (v != (old & 0x3f)) { | |
596 | cx_write(AUD_VOL_CTL, (old & ~0x3f) | v); | |
597 | changed = 1; | |
598 | } | |
599 | if (cx_read(AUD_BAL_CTL) != b) { | |
600 | cx_write(AUD_BAL_CTL, b); | |
601 | changed = 1; | |
602 | } | |
b7f355d2 MCC |
603 | spin_unlock_irq(&chip->reg_lock); |
604 | ||
82896f29 | 605 | return changed; |
b7f355d2 MCC |
606 | } |
607 | ||
f7cbb7fc | 608 | static struct snd_kcontrol_new snd_cx88_capture_volume = { |
b7f355d2 MCC |
609 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
610 | .name = "Capture Volume", | |
611 | .info = snd_cx88_capture_volume_info, | |
612 | .get = snd_cx88_capture_volume_get, | |
613 | .put = snd_cx88_capture_volume_put, | |
614 | }; | |
615 | ||
616 | ||
617 | /**************************************************************************** | |
618 | Basic Flow for Sound Devices | |
619 | ****************************************************************************/ | |
620 | ||
621 | /* | |
622 | * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio | |
623 | * Only boards with eeprom and byte 1 at eeprom=1 have it | |
624 | */ | |
625 | ||
396c9b92 | 626 | static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = { |
b7f355d2 MCC |
627 | {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, |
628 | {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, | |
629 | {0, } | |
630 | }; | |
631 | MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl); | |
632 | ||
633 | /* | |
634 | * Chip-specific destructor | |
635 | */ | |
636 | ||
637 | static int snd_cx88_free(snd_cx88_card_t *chip) | |
638 | { | |
639 | ||
640 | if (chip->irq >= 0){ | |
641 | synchronize_irq(chip->irq); | |
642 | free_irq(chip->irq, chip); | |
643 | } | |
644 | ||
645 | cx88_core_put(chip->core,chip->pci); | |
646 | ||
647 | pci_disable_device(chip->pci); | |
648 | return 0; | |
649 | } | |
650 | ||
651 | /* | |
652 | * Component Destructor | |
653 | */ | |
f7cbb7fc | 654 | static void snd_cx88_dev_free(struct snd_card * card) |
b7f355d2 MCC |
655 | { |
656 | snd_cx88_card_t *chip = card->private_data; | |
657 | ||
658 | snd_cx88_free(chip); | |
659 | } | |
660 | ||
661 | ||
662 | /* | |
663 | * Alsa Constructor - Component probe | |
664 | */ | |
665 | ||
a5ed425c | 666 | static int devno; |
f7cbb7fc TI |
667 | static int __devinit snd_cx88_create(struct snd_card *card, |
668 | struct pci_dev *pci, | |
669 | snd_cx88_card_t **rchip) | |
b7f355d2 MCC |
670 | { |
671 | snd_cx88_card_t *chip; | |
672 | struct cx88_core *core; | |
673 | int err; | |
19453bc1 | 674 | unsigned char pci_lat; |
b7f355d2 MCC |
675 | |
676 | *rchip = NULL; | |
677 | ||
678 | err = pci_enable_device(pci); | |
679 | if (err < 0) | |
680 | return err; | |
681 | ||
682 | pci_set_master(pci); | |
683 | ||
684 | chip = (snd_cx88_card_t *) card->private_data; | |
685 | ||
686 | core = cx88_core_get(pci); | |
31dcbf99 DS |
687 | if (NULL == core) { |
688 | err = -EINVAL; | |
689 | kfree (chip); | |
690 | return err; | |
691 | } | |
b7f355d2 | 692 | |
aaa40cb8 | 693 | if (!pci_dma_supported(pci,DMA_32BIT_MASK)) { |
b7f355d2 MCC |
694 | dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name); |
695 | err = -EIO; | |
696 | cx88_core_put(core,pci); | |
697 | return err; | |
698 | } | |
699 | ||
700 | ||
701 | /* pci init */ | |
702 | chip->card = card; | |
703 | chip->pci = pci; | |
704 | chip->irq = -1; | |
705 | spin_lock_init(&chip->reg_lock); | |
706 | ||
b7f355d2 MCC |
707 | chip->core = core; |
708 | ||
709 | /* get irq */ | |
710 | err = request_irq(chip->pci->irq, cx8801_irq, | |
8076fe32 | 711 | IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip); |
b7f355d2 MCC |
712 | if (err < 0) { |
713 | dprintk(0, "%s: can't get IRQ %d\n", | |
714 | chip->core->name, chip->pci->irq); | |
715 | return err; | |
716 | } | |
717 | ||
718 | /* print pci info */ | |
19453bc1 | 719 | pci_read_config_byte(pci, PCI_LATENCY_TIMER, &pci_lat); |
b7f355d2 MCC |
720 | |
721 | dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, " | |
228aef63 | 722 | "latency: %d, mmio: 0x%llx\n", core->name, devno, |
19453bc1 TP |
723 | pci_name(pci), pci->revision, pci->irq, |
724 | pci_lat, (unsigned long long)pci_resource_start(pci,0)); | |
b7f355d2 MCC |
725 | |
726 | chip->irq = pci->irq; | |
727 | synchronize_irq(chip->irq); | |
728 | ||
729 | snd_card_set_dev(card, &pci->dev); | |
730 | ||
731 | *rchip = chip; | |
732 | ||
733 | return 0; | |
734 | } | |
735 | ||
736 | static int __devinit cx88_audio_initdev(struct pci_dev *pci, | |
737 | const struct pci_device_id *pci_id) | |
738 | { | |
f7cbb7fc | 739 | struct snd_card *card; |
b7f355d2 MCC |
740 | snd_cx88_card_t *chip; |
741 | int err; | |
742 | ||
743 | if (devno >= SNDRV_CARDS) | |
744 | return (-ENODEV); | |
745 | ||
746 | if (!enable[devno]) { | |
747 | ++devno; | |
748 | return (-ENOENT); | |
749 | } | |
750 | ||
751 | card = snd_card_new(index[devno], id[devno], THIS_MODULE, sizeof(snd_cx88_card_t)); | |
752 | if (!card) | |
753 | return (-ENOMEM); | |
754 | ||
755 | card->private_free = snd_cx88_dev_free; | |
756 | ||
757 | err = snd_cx88_create(card, pci, &chip); | |
758 | if (err < 0) | |
759 | return (err); | |
760 | ||
761 | err = snd_cx88_pcm(chip, 0, "CX88 Digital"); | |
82896f29 TP |
762 | if (err < 0) |
763 | goto error; | |
b7f355d2 MCC |
764 | |
765 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_capture_volume, chip)); | |
82896f29 TP |
766 | if (err < 0) |
767 | goto error; | |
b7f355d2 MCC |
768 | |
769 | strcpy (card->driver, "CX88x"); | |
770 | sprintf(card->shortname, "Conexant CX%x", pci->device); | |
228aef63 GKH |
771 | sprintf(card->longname, "%s at %#llx", |
772 | card->shortname,(unsigned long long)pci_resource_start(pci, 0)); | |
b7f355d2 MCC |
773 | strcpy (card->mixername, "CX88"); |
774 | ||
775 | dprintk (0, "%s/%i: ALSA support for cx2388x boards\n", | |
776 | card->driver,devno); | |
777 | ||
778 | err = snd_card_register(card); | |
82896f29 TP |
779 | if (err < 0) |
780 | goto error; | |
b7f355d2 MCC |
781 | pci_set_drvdata(pci,card); |
782 | ||
783 | devno++; | |
784 | return 0; | |
82896f29 TP |
785 | |
786 | error: | |
787 | snd_card_free(card); | |
788 | return err; | |
b7f355d2 MCC |
789 | } |
790 | /* | |
791 | * ALSA destructor | |
792 | */ | |
793 | static void __devexit cx88_audio_finidev(struct pci_dev *pci) | |
794 | { | |
795 | struct cx88_audio_dev *card = pci_get_drvdata(pci); | |
796 | ||
797 | snd_card_free((void *)card); | |
798 | ||
799 | pci_set_drvdata(pci, NULL); | |
800 | ||
801 | devno--; | |
802 | } | |
803 | ||
804 | /* | |
805 | * PCI driver definition | |
806 | */ | |
807 | ||
808 | static struct pci_driver cx88_audio_pci_driver = { | |
809 | .name = "cx88_audio", | |
810 | .id_table = cx88_audio_pci_tbl, | |
811 | .probe = cx88_audio_initdev, | |
812 | .remove = cx88_audio_finidev, | |
b7f355d2 MCC |
813 | }; |
814 | ||
815 | /**************************************************************************** | |
816 | LINUX MODULE INIT | |
817 | ****************************************************************************/ | |
818 | ||
819 | /* | |
820 | * module init | |
821 | */ | |
822 | static int cx88_audio_init(void) | |
823 | { | |
824 | printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n", | |
825 | (CX88_VERSION_CODE >> 16) & 0xff, | |
826 | (CX88_VERSION_CODE >> 8) & 0xff, | |
827 | CX88_VERSION_CODE & 0xff); | |
828 | #ifdef SNAPSHOT | |
829 | printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n", | |
830 | SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100); | |
831 | #endif | |
832 | return pci_register_driver(&cx88_audio_pci_driver); | |
833 | } | |
834 | ||
835 | /* | |
836 | * module remove | |
837 | */ | |
838 | static void cx88_audio_fini(void) | |
839 | { | |
840 | ||
841 | pci_unregister_driver(&cx88_audio_pci_driver); | |
842 | } | |
843 | ||
844 | module_init(cx88_audio_init); | |
845 | module_exit(cx88_audio_fini); | |
846 | ||
847 | /* ----------------------------------------------------------- */ | |
848 | /* | |
849 | * Local variables: | |
850 | * c-basic-offset: 8 | |
851 | * End: | |
852 | */ |