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> |
b7f355d2 MCC |
43 | |
44 | #include "cx88.h" | |
45 | #include "cx88-reg.h" | |
46 | ||
47 | #define dprintk(level,fmt, arg...) if (debug >= level) \ | |
48 | printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg) | |
49 | ||
50 | #define dprintk_core(level,fmt, arg...) if (debug >= level) \ | |
51 | printk(KERN_DEBUG "%s/1: " fmt, chip->core->name , ## arg) | |
52 | ||
b7f355d2 MCC |
53 | /**************************************************************************** |
54 | Data type declarations - Can be moded to a header file later | |
55 | ****************************************************************************/ | |
56 | ||
fecfedeb LP |
57 | struct cx88_audio_buffer { |
58 | unsigned int bpl; | |
59 | struct btcx_riscmem risc; | |
60 | struct videobuf_dmabuf dma; | |
61 | }; | |
62 | ||
b7f355d2 MCC |
63 | struct cx88_audio_dev { |
64 | struct cx88_core *core; | |
65 | struct cx88_dmaqueue q; | |
66 | ||
67 | /* pci i/o */ | |
68 | struct pci_dev *pci; | |
b7f355d2 MCC |
69 | |
70 | /* audio controls */ | |
71 | int irq; | |
72 | ||
f7cbb7fc | 73 | struct snd_card *card; |
b7f355d2 MCC |
74 | |
75 | spinlock_t reg_lock; | |
05b27233 | 76 | atomic_t count; |
b7f355d2 MCC |
77 | |
78 | unsigned int dma_size; | |
79 | unsigned int period_size; | |
80 | unsigned int num_periods; | |
81 | ||
c1accaa2 | 82 | struct videobuf_dmabuf *dma_risc; |
b7f355d2 | 83 | |
fecfedeb | 84 | struct cx88_audio_buffer *buf; |
b7f355d2 | 85 | |
05b27233 | 86 | struct snd_pcm_substream *substream; |
b7f355d2 MCC |
87 | }; |
88 | typedef struct cx88_audio_dev snd_cx88_card_t; | |
89 | ||
90 | ||
91 | ||
92 | /**************************************************************************** | |
93 | Module global static vars | |
94 | ****************************************************************************/ | |
95 | ||
96 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | |
97 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
98 | static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1}; | |
b7f355d2 MCC |
99 | |
100 | module_param_array(enable, bool, NULL, 0444); | |
101 | MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled."); | |
102 | ||
103 | module_param_array(index, int, NULL, 0444); | |
104 | MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s)."); | |
105 | ||
106 | ||
107 | /**************************************************************************** | |
108 | Module macros | |
109 | ****************************************************************************/ | |
110 | ||
111 | MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards"); | |
112 | MODULE_AUTHOR("Ricardo Cerqueira"); | |
2e7c6dc3 | 113 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>"); |
b7f355d2 MCC |
114 | MODULE_LICENSE("GPL"); |
115 | MODULE_SUPPORTED_DEVICE("{{Conexant,23881}," | |
116 | "{{Conexant,23882}," | |
117 | "{{Conexant,23883}"); | |
a5ed425c | 118 | static unsigned int debug; |
b7f355d2 MCC |
119 | module_param(debug,int,0644); |
120 | MODULE_PARM_DESC(debug,"enable debug messages"); | |
121 | ||
122 | /**************************************************************************** | |
123 | Module specific funtions | |
124 | ****************************************************************************/ | |
125 | ||
126 | /* | |
127 | * BOARD Specific: Sets audio DMA | |
128 | */ | |
129 | ||
be8a82d1 | 130 | static int _cx88_start_audio_dma(snd_cx88_card_t *chip) |
b7f355d2 | 131 | { |
fecfedeb | 132 | struct cx88_audio_buffer *buf = chip->buf; |
b7f355d2 MCC |
133 | struct cx88_core *core=chip->core; |
134 | struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25]; | |
135 | ||
59fd8f8d TP |
136 | /* Make sure RISC/FIFO are off before changing FIFO/RISC settings */ |
137 | cx_clear(MO_AUD_DMACNTRL, 0x11); | |
b7f355d2 MCC |
138 | |
139 | /* setup fifo + format - out channel */ | |
59fd8f8d | 140 | cx88_sram_channel_setup(chip->core, audio_ch, buf->bpl, buf->risc.dma); |
b7f355d2 MCC |
141 | |
142 | /* sets bpl size */ | |
143 | cx_write(MO_AUDD_LNGTH, buf->bpl); | |
144 | ||
145 | /* reset counter */ | |
05b27233 TP |
146 | cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET); |
147 | atomic_set(&chip->count, 0); | |
b7f355d2 | 148 | |
05b27233 TP |
149 | dprintk(1, "Start audio DMA, %d B/line, %d lines/FIFO, %d periods, %d " |
150 | "byte buffer\n", buf->bpl, cx_read(audio_ch->cmds_start + 8)>>1, | |
59fd8f8d TP |
151 | chip->num_periods, buf->bpl * chip->num_periods); |
152 | ||
b7f355d2 | 153 | /* Enables corresponding bits at AUD_INT_STAT */ |
59fd8f8d TP |
154 | cx_write(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | |
155 | AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1); | |
156 | ||
157 | /* Clean any pending interrupt bits already set */ | |
158 | cx_write(MO_AUD_INTSTAT, ~0); | |
159 | ||
160 | /* enable audio irqs */ | |
161 | cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | PCI_INT_AUDINT); | |
b7f355d2 MCC |
162 | |
163 | /* start dma */ | |
164 | cx_set(MO_DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */ | |
165 | cx_set(MO_AUD_DMACNTRL, 0x11); /* audio downstream FIFO and RISC enable */ | |
166 | ||
167 | if (debug) | |
59fd8f8d | 168 | cx88_sram_channel_dump(chip->core, audio_ch); |
b7f355d2 MCC |
169 | |
170 | return 0; | |
171 | } | |
172 | ||
173 | /* | |
174 | * BOARD Specific: Resets audio DMA | |
175 | */ | |
be8a82d1 | 176 | static int _cx88_stop_audio_dma(snd_cx88_card_t *chip) |
b7f355d2 MCC |
177 | { |
178 | struct cx88_core *core=chip->core; | |
179 | dprintk(1, "Stopping audio DMA\n"); | |
180 | ||
181 | /* stop dma */ | |
182 | cx_clear(MO_AUD_DMACNTRL, 0x11); | |
183 | ||
184 | /* disable irqs */ | |
8ddac9ee | 185 | cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT); |
59fd8f8d TP |
186 | cx_clear(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | |
187 | AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1); | |
b7f355d2 MCC |
188 | |
189 | if (debug) | |
190 | cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]); | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
05b27233 | 195 | #define MAX_IRQ_LOOP 50 |
b7f355d2 MCC |
196 | |
197 | /* | |
198 | * BOARD Specific: IRQ dma bits | |
199 | */ | |
200 | static char *cx88_aud_irqs[32] = { | |
201 | "dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */ | |
202 | NULL, /* reserved */ | |
203 | "dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */ | |
204 | NULL, /* reserved */ | |
205 | "dnf_of", "upf_uf", "rds_dnf_uf", /* 8-10 */ | |
206 | NULL, /* reserved */ | |
207 | "dn_sync", "up_sync", "rds_dn_sync", /* 12-14 */ | |
208 | NULL, /* reserved */ | |
209 | "opc_err", "par_err", "rip_err", /* 16-18 */ | |
210 | "pci_abort", "ber_irq", "mchg_irq" /* 19-21 */ | |
211 | }; | |
212 | ||
213 | /* | |
214 | * BOARD Specific: Threats IRQ audio specific calls | |
215 | */ | |
216 | static void cx8801_aud_irq(snd_cx88_card_t *chip) | |
217 | { | |
218 | struct cx88_core *core = chip->core; | |
219 | u32 status, mask; | |
b7f355d2 MCC |
220 | |
221 | status = cx_read(MO_AUD_INTSTAT); | |
222 | mask = cx_read(MO_AUD_INTMSK); | |
05b27233 | 223 | if (0 == (status & mask)) |
b7f355d2 | 224 | return; |
b7f355d2 MCC |
225 | cx_write(MO_AUD_INTSTAT, status); |
226 | if (debug > 1 || (status & mask & ~0xff)) | |
227 | cx88_print_irqbits(core->name, "irq aud", | |
66623a04 MCC |
228 | cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs), |
229 | status, mask); | |
b7f355d2 | 230 | /* risc op code error */ |
59fd8f8d | 231 | if (status & AUD_INT_OPC_ERR) { |
05b27233 | 232 | printk(KERN_WARNING "%s/1: Audio risc op code error\n",core->name); |
b7f355d2 MCC |
233 | cx_clear(MO_AUD_DMACNTRL, 0x11); |
234 | cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]); | |
235 | } | |
05b27233 TP |
236 | if (status & AUD_INT_DN_SYNC) { |
237 | dprintk(1, "Downstream sync error\n"); | |
238 | cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET); | |
239 | return; | |
240 | } | |
b7f355d2 | 241 | /* risc1 downstream */ |
59fd8f8d | 242 | if (status & AUD_INT_DN_RISCI1) { |
05b27233 | 243 | atomic_set(&chip->count, cx_read(MO_AUDD_GPCNT)); |
b7f355d2 MCC |
244 | snd_pcm_period_elapsed(chip->substream); |
245 | } | |
b7f355d2 MCC |
246 | /* FIXME: Any other status should deserve a special handling? */ |
247 | } | |
248 | ||
249 | /* | |
250 | * BOARD Specific: Handles IRQ calls | |
251 | */ | |
7d12e780 | 252 | static irqreturn_t cx8801_irq(int irq, void *dev_id) |
b7f355d2 MCC |
253 | { |
254 | snd_cx88_card_t *chip = dev_id; | |
255 | struct cx88_core *core = chip->core; | |
256 | u32 status; | |
257 | int loop, handled = 0; | |
258 | ||
259 | for (loop = 0; loop < MAX_IRQ_LOOP; loop++) { | |
8ddac9ee TP |
260 | status = cx_read(MO_PCI_INTSTAT) & |
261 | (core->pci_irqmask | PCI_INT_AUDINT); | |
b7f355d2 MCC |
262 | if (0 == status) |
263 | goto out; | |
05b27233 TP |
264 | dprintk(3, "cx8801_irq loop %d/%d, status %x\n", |
265 | loop, MAX_IRQ_LOOP, status); | |
b7f355d2 MCC |
266 | handled = 1; |
267 | cx_write(MO_PCI_INTSTAT, status); | |
268 | ||
5ba862b7 TP |
269 | if (status & core->pci_irqmask) |
270 | cx88_core_irq(core, status); | |
05b27233 | 271 | if (status & PCI_INT_AUDINT) |
b7f355d2 | 272 | cx8801_aud_irq(chip); |
05b27233 | 273 | } |
b7f355d2 MCC |
274 | |
275 | if (MAX_IRQ_LOOP == loop) { | |
05b27233 TP |
276 | printk(KERN_ERR |
277 | "%s/1: IRQ loop detected, disabling interrupts\n", | |
b7f355d2 | 278 | core->name); |
8ddac9ee | 279 | cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT); |
b7f355d2 MCC |
280 | } |
281 | ||
282 | out: | |
283 | return IRQ_RETVAL(handled); | |
284 | } | |
285 | ||
286 | ||
287 | static int dsp_buffer_free(snd_cx88_card_t *chip) | |
288 | { | |
289 | BUG_ON(!chip->dma_size); | |
290 | ||
291 | dprintk(2,"Freeing buffer\n"); | |
95268403 | 292 | videobuf_dma_unmap(&chip->pci->dev, chip->dma_risc); |
c1accaa2 | 293 | videobuf_dma_free(chip->dma_risc); |
b7f355d2 MCC |
294 | btcx_riscmem_free(chip->pci,&chip->buf->risc); |
295 | kfree(chip->buf); | |
296 | ||
c1accaa2 | 297 | chip->dma_risc = NULL; |
b7f355d2 MCC |
298 | chip->dma_size = 0; |
299 | ||
05b27233 | 300 | return 0; |
b7f355d2 MCC |
301 | } |
302 | ||
303 | /**************************************************************************** | |
304 | ALSA PCM Interface | |
305 | ****************************************************************************/ | |
306 | ||
307 | /* | |
308 | * Digital hardware definition | |
309 | */ | |
05b27233 | 310 | #define DEFAULT_FIFO_SIZE 4096 |
f7cbb7fc | 311 | static struct snd_pcm_hardware snd_cx88_digital_hw = { |
b7f355d2 MCC |
312 | .info = SNDRV_PCM_INFO_MMAP | |
313 | SNDRV_PCM_INFO_INTERLEAVED | | |
314 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
315 | SNDRV_PCM_INFO_MMAP_VALID, | |
316 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
317 | ||
318 | .rates = SNDRV_PCM_RATE_48000, | |
319 | .rate_min = 48000, | |
320 | .rate_max = 48000, | |
5a5b3b5d | 321 | .channels_min = 2, |
b7f355d2 | 322 | .channels_max = 2, |
05b27233 TP |
323 | /* Analog audio output will be full of clicks and pops if there |
324 | are not exactly four lines in the SRAM FIFO buffer. */ | |
325 | .period_bytes_min = DEFAULT_FIFO_SIZE/4, | |
326 | .period_bytes_max = DEFAULT_FIFO_SIZE/4, | |
327 | .periods_min = 1, | |
328 | .periods_max = 1024, | |
329 | .buffer_bytes_max = (1024*1024), | |
b7f355d2 MCC |
330 | }; |
331 | ||
b7f355d2 MCC |
332 | /* |
333 | * audio pcm capture open callback | |
334 | */ | |
f7cbb7fc | 335 | static int snd_cx88_pcm_open(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
336 | { |
337 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
f7cbb7fc | 338 | struct snd_pcm_runtime *runtime = substream->runtime; |
b7f355d2 MCC |
339 | int err; |
340 | ||
83ee87a3 MCC |
341 | if (!chip) { |
342 | printk(KERN_ERR "BUG: cx88 can't find device struct." | |
343 | " Can't proceed with open\n"); | |
344 | return -ENODEV; | |
345 | } | |
346 | ||
05b27233 | 347 | err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS); |
b7f355d2 MCC |
348 | if (err < 0) |
349 | goto _error; | |
350 | ||
351 | chip->substream = substream; | |
352 | ||
b7f355d2 MCC |
353 | runtime->hw = snd_cx88_digital_hw; |
354 | ||
05b27233 TP |
355 | if (cx88_sram_channels[SRAM_CH25].fifo_size != DEFAULT_FIFO_SIZE) { |
356 | unsigned int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4; | |
357 | bpl &= ~7; /* must be multiple of 8 */ | |
358 | runtime->hw.period_bytes_min = bpl; | |
359 | runtime->hw.period_bytes_max = bpl; | |
360 | } | |
361 | ||
b7f355d2 MCC |
362 | return 0; |
363 | _error: | |
364 | dprintk(1,"Error opening PCM!\n"); | |
b7f355d2 MCC |
365 | return err; |
366 | } | |
367 | ||
368 | /* | |
369 | * audio close callback | |
370 | */ | |
f7cbb7fc | 371 | static int snd_cx88_close(struct snd_pcm_substream *substream) |
b7f355d2 | 372 | { |
b7f355d2 MCC |
373 | return 0; |
374 | } | |
375 | ||
376 | /* | |
377 | * hw_params callback | |
378 | */ | |
f7cbb7fc TI |
379 | static int snd_cx88_hw_params(struct snd_pcm_substream * substream, |
380 | struct snd_pcm_hw_params * hw_params) | |
b7f355d2 MCC |
381 | { |
382 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
c1accaa2 MCC |
383 | struct videobuf_dmabuf *dma; |
384 | ||
fecfedeb | 385 | struct cx88_audio_buffer *buf; |
05b27233 | 386 | int ret; |
b7f355d2 MCC |
387 | |
388 | if (substream->runtime->dma_area) { | |
389 | dsp_buffer_free(chip); | |
390 | substream->runtime->dma_area = NULL; | |
391 | } | |
392 | ||
b7f355d2 MCC |
393 | chip->period_size = params_period_bytes(hw_params); |
394 | chip->num_periods = params_periods(hw_params); | |
395 | chip->dma_size = chip->period_size * params_periods(hw_params); | |
396 | ||
397 | BUG_ON(!chip->dma_size); | |
05b27233 | 398 | BUG_ON(chip->num_periods & (chip->num_periods-1)); |
b7f355d2 | 399 | |
fecfedeb | 400 | buf = kzalloc(sizeof(*buf), GFP_KERNEL); |
b7f355d2 MCC |
401 | if (NULL == buf) |
402 | return -ENOMEM; | |
b7f355d2 | 403 | |
fecfedeb | 404 | buf->bpl = chip->period_size; |
b7f355d2 | 405 | |
fecfedeb | 406 | dma = &buf->dma; |
c1accaa2 MCC |
407 | videobuf_dma_init(dma); |
408 | ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE, | |
fecfedeb | 409 | (PAGE_ALIGN(chip->dma_size) >> PAGE_SHIFT)); |
05b27233 TP |
410 | if (ret < 0) |
411 | goto error; | |
b7f355d2 | 412 | |
95268403 | 413 | ret = videobuf_dma_map(&chip->pci->dev, dma); |
05b27233 TP |
414 | if (ret < 0) |
415 | goto error; | |
b7f355d2 | 416 | |
c1accaa2 | 417 | ret = cx88_risc_databuffer(chip->pci, &buf->risc, dma->sglist, |
fecfedeb | 418 | chip->period_size, chip->num_periods, 1); |
05b27233 TP |
419 | if (ret < 0) |
420 | goto error; | |
b7f355d2 | 421 | |
05b27233 TP |
422 | /* Loop back to start of program */ |
423 | buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC); | |
b7f355d2 MCC |
424 | buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma); |
425 | ||
b7f355d2 | 426 | chip->buf = buf; |
c1accaa2 | 427 | chip->dma_risc = dma; |
b7f355d2 | 428 | |
c1accaa2 | 429 | substream->runtime->dma_area = chip->dma_risc->vmalloc; |
f6210c91 TP |
430 | substream->runtime->dma_bytes = chip->dma_size; |
431 | substream->runtime->dma_addr = 0; | |
b7f355d2 | 432 | return 0; |
05b27233 TP |
433 | |
434 | error: | |
435 | kfree(buf); | |
436 | return ret; | |
b7f355d2 MCC |
437 | } |
438 | ||
439 | /* | |
440 | * hw free callback | |
441 | */ | |
f7cbb7fc | 442 | static int snd_cx88_hw_free(struct snd_pcm_substream * substream) |
b7f355d2 MCC |
443 | { |
444 | ||
445 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
446 | ||
447 | if (substream->runtime->dma_area) { | |
448 | dsp_buffer_free(chip); | |
449 | substream->runtime->dma_area = NULL; | |
450 | } | |
451 | ||
452 | return 0; | |
453 | } | |
454 | ||
455 | /* | |
456 | * prepare callback | |
457 | */ | |
f7cbb7fc | 458 | static int snd_cx88_prepare(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
459 | { |
460 | return 0; | |
461 | } | |
462 | ||
b7f355d2 MCC |
463 | /* |
464 | * trigger callback | |
465 | */ | |
f7cbb7fc | 466 | static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd) |
b7f355d2 MCC |
467 | { |
468 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
469 | int err; | |
470 | ||
05b27233 | 471 | /* Local interrupts are already disabled by ALSA */ |
b7f355d2 MCC |
472 | spin_lock(&chip->reg_lock); |
473 | ||
474 | switch (cmd) { | |
475 | case SNDRV_PCM_TRIGGER_START: | |
476 | err=_cx88_start_audio_dma(chip); | |
477 | break; | |
478 | case SNDRV_PCM_TRIGGER_STOP: | |
479 | err=_cx88_stop_audio_dma(chip); | |
480 | break; | |
481 | default: | |
482 | err=-EINVAL; | |
483 | break; | |
484 | } | |
485 | ||
486 | spin_unlock(&chip->reg_lock); | |
487 | ||
488 | return err; | |
489 | } | |
490 | ||
491 | /* | |
492 | * pointer callback | |
493 | */ | |
f7cbb7fc | 494 | static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
495 | { |
496 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
f7cbb7fc | 497 | struct snd_pcm_runtime *runtime = substream->runtime; |
05b27233 | 498 | u16 count; |
b7f355d2 | 499 | |
05b27233 | 500 | count = atomic_read(&chip->count); |
b7f355d2 | 501 | |
32d83efc | 502 | // dprintk(2, "%s - count %d (+%u), period %d, frame %lu\n", __func__, |
05b27233 TP |
503 | // count, new, count & (runtime->periods-1), |
504 | // runtime->period_size * (count & (runtime->periods-1))); | |
505 | return runtime->period_size * (count & (runtime->periods-1)); | |
b7f355d2 MCC |
506 | } |
507 | ||
f6210c91 TP |
508 | /* |
509 | * page callback (needed for mmap) | |
510 | */ | |
511 | static struct page *snd_cx88_page(struct snd_pcm_substream *substream, | |
512 | unsigned long offset) | |
513 | { | |
514 | void *pageptr = substream->runtime->dma_area + offset; | |
515 | return vmalloc_to_page(pageptr); | |
516 | } | |
517 | ||
b7f355d2 MCC |
518 | /* |
519 | * operators | |
520 | */ | |
f7cbb7fc | 521 | static struct snd_pcm_ops snd_cx88_pcm_ops = { |
b7f355d2 MCC |
522 | .open = snd_cx88_pcm_open, |
523 | .close = snd_cx88_close, | |
524 | .ioctl = snd_pcm_lib_ioctl, | |
525 | .hw_params = snd_cx88_hw_params, | |
526 | .hw_free = snd_cx88_hw_free, | |
527 | .prepare = snd_cx88_prepare, | |
528 | .trigger = snd_cx88_card_trigger, | |
529 | .pointer = snd_cx88_pointer, | |
f6210c91 | 530 | .page = snd_cx88_page, |
b7f355d2 MCC |
531 | }; |
532 | ||
533 | /* | |
534 | * create a PCM device | |
535 | */ | |
536 | static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name) | |
537 | { | |
538 | int err; | |
f7cbb7fc | 539 | struct snd_pcm *pcm; |
b7f355d2 MCC |
540 | |
541 | err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); | |
542 | if (err < 0) | |
543 | return err; | |
544 | pcm->private_data = chip; | |
545 | strcpy(pcm->name, name); | |
546 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx88_pcm_ops); | |
547 | ||
548 | return 0; | |
549 | } | |
550 | ||
551 | /**************************************************************************** | |
552 | CONTROL INTERFACE | |
553 | ****************************************************************************/ | |
54ac005a TP |
554 | static int snd_cx88_volume_info(struct snd_kcontrol *kcontrol, |
555 | struct snd_ctl_elem_info *info) | |
b7f355d2 MCC |
556 | { |
557 | info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
82896f29 | 558 | info->count = 2; |
b7f355d2 MCC |
559 | info->value.integer.min = 0; |
560 | info->value.integer.max = 0x3f; | |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
54ac005a TP |
565 | static int snd_cx88_volume_get(struct snd_kcontrol *kcontrol, |
566 | struct snd_ctl_elem_value *value) | |
b7f355d2 MCC |
567 | { |
568 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
569 | struct cx88_core *core=chip->core; | |
82896f29 TP |
570 | int vol = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f), |
571 | bal = cx_read(AUD_BAL_CTL); | |
b7f355d2 | 572 | |
82896f29 TP |
573 | value->value.integer.value[(bal & 0x40) ? 0 : 1] = vol; |
574 | vol -= (bal & 0x3f); | |
575 | value->value.integer.value[(bal & 0x40) ? 1 : 0] = vol < 0 ? 0 : vol; | |
b7f355d2 MCC |
576 | |
577 | return 0; | |
578 | } | |
579 | ||
580 | /* OK - TODO: test it */ | |
54ac005a TP |
581 | static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol, |
582 | struct snd_ctl_elem_value *value) | |
b7f355d2 MCC |
583 | { |
584 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
585 | struct cx88_core *core=chip->core; | |
cca80b97 | 586 | int left, right, v, b; |
82896f29 TP |
587 | int changed = 0; |
588 | u32 old; | |
589 | ||
cca80b97 CL |
590 | left = value->value.integer.value[0] & 0x3f; |
591 | right = value->value.integer.value[1] & 0x3f; | |
592 | b = right - left; | |
82896f29 | 593 | if (b < 0) { |
cca80b97 | 594 | v = 0x3f - left; |
82896f29 TP |
595 | b = (-b) | 0x40; |
596 | } else { | |
cca80b97 | 597 | v = 0x3f - right; |
82896f29 | 598 | } |
05b27233 | 599 | /* Do we really know this will always be called with IRQs on? */ |
b7f355d2 | 600 | spin_lock_irq(&chip->reg_lock); |
82896f29 TP |
601 | old = cx_read(AUD_VOL_CTL); |
602 | if (v != (old & 0x3f)) { | |
603 | cx_write(AUD_VOL_CTL, (old & ~0x3f) | v); | |
604 | changed = 1; | |
605 | } | |
606 | if (cx_read(AUD_BAL_CTL) != b) { | |
607 | cx_write(AUD_BAL_CTL, b); | |
608 | changed = 1; | |
609 | } | |
b7f355d2 MCC |
610 | spin_unlock_irq(&chip->reg_lock); |
611 | ||
82896f29 | 612 | return changed; |
b7f355d2 MCC |
613 | } |
614 | ||
bbaccc04 TP |
615 | static const DECLARE_TLV_DB_SCALE(snd_cx88_db_scale, -6300, 100, 0); |
616 | ||
54ac005a | 617 | static struct snd_kcontrol_new snd_cx88_volume = { |
b7f355d2 | 618 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
bbaccc04 TP |
619 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | |
620 | SNDRV_CTL_ELEM_ACCESS_TLV_READ, | |
54ac005a TP |
621 | .name = "Playback Volume", |
622 | .info = snd_cx88_volume_info, | |
623 | .get = snd_cx88_volume_get, | |
624 | .put = snd_cx88_volume_put, | |
bbaccc04 | 625 | .tlv.p = snd_cx88_db_scale, |
b7f355d2 MCC |
626 | }; |
627 | ||
54ac005a TP |
628 | static int snd_cx88_switch_get(struct snd_kcontrol *kcontrol, |
629 | struct snd_ctl_elem_value *value) | |
630 | { | |
631 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
632 | struct cx88_core *core = chip->core; | |
633 | u32 bit = kcontrol->private_value; | |
634 | ||
635 | value->value.integer.value[0] = !(cx_read(AUD_VOL_CTL) & bit); | |
636 | return 0; | |
637 | } | |
638 | ||
639 | static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol, | |
640 | struct snd_ctl_elem_value *value) | |
641 | { | |
642 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
643 | struct cx88_core *core = chip->core; | |
644 | u32 bit = kcontrol->private_value; | |
645 | int ret = 0; | |
646 | u32 vol; | |
647 | ||
648 | spin_lock_irq(&chip->reg_lock); | |
649 | vol = cx_read(AUD_VOL_CTL); | |
650 | if (value->value.integer.value[0] != !(vol & bit)) { | |
651 | vol ^= bit; | |
652 | cx_write(AUD_VOL_CTL, vol); | |
653 | ret = 1; | |
654 | } | |
655 | spin_unlock_irq(&chip->reg_lock); | |
656 | return ret; | |
657 | } | |
658 | ||
659 | static struct snd_kcontrol_new snd_cx88_dac_switch = { | |
660 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
661 | .name = "Playback Switch", | |
662 | .info = snd_ctl_boolean_mono_info, | |
663 | .get = snd_cx88_switch_get, | |
664 | .put = snd_cx88_switch_put, | |
665 | .private_value = (1<<8), | |
666 | }; | |
667 | ||
668 | static struct snd_kcontrol_new snd_cx88_source_switch = { | |
669 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
670 | .name = "Capture Switch", | |
671 | .info = snd_ctl_boolean_mono_info, | |
672 | .get = snd_cx88_switch_get, | |
673 | .put = snd_cx88_switch_put, | |
674 | .private_value = (1<<6), | |
675 | }; | |
b7f355d2 MCC |
676 | |
677 | /**************************************************************************** | |
678 | Basic Flow for Sound Devices | |
679 | ****************************************************************************/ | |
680 | ||
681 | /* | |
682 | * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio | |
683 | * Only boards with eeprom and byte 1 at eeprom=1 have it | |
684 | */ | |
685 | ||
396c9b92 | 686 | static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = { |
b7f355d2 MCC |
687 | {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, |
688 | {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, | |
689 | {0, } | |
690 | }; | |
691 | MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl); | |
692 | ||
693 | /* | |
694 | * Chip-specific destructor | |
695 | */ | |
696 | ||
697 | static int snd_cx88_free(snd_cx88_card_t *chip) | |
698 | { | |
699 | ||
f000fd80 | 700 | if (chip->irq >= 0) |
b7f355d2 | 701 | free_irq(chip->irq, chip); |
b7f355d2 MCC |
702 | |
703 | cx88_core_put(chip->core,chip->pci); | |
704 | ||
705 | pci_disable_device(chip->pci); | |
706 | return 0; | |
707 | } | |
708 | ||
709 | /* | |
710 | * Component Destructor | |
711 | */ | |
f7cbb7fc | 712 | static void snd_cx88_dev_free(struct snd_card * card) |
b7f355d2 MCC |
713 | { |
714 | snd_cx88_card_t *chip = card->private_data; | |
715 | ||
716 | snd_cx88_free(chip); | |
717 | } | |
718 | ||
719 | ||
720 | /* | |
721 | * Alsa Constructor - Component probe | |
722 | */ | |
723 | ||
a5ed425c | 724 | static int devno; |
f7cbb7fc TI |
725 | static int __devinit snd_cx88_create(struct snd_card *card, |
726 | struct pci_dev *pci, | |
727 | snd_cx88_card_t **rchip) | |
b7f355d2 MCC |
728 | { |
729 | snd_cx88_card_t *chip; | |
730 | struct cx88_core *core; | |
731 | int err; | |
19453bc1 | 732 | unsigned char pci_lat; |
b7f355d2 MCC |
733 | |
734 | *rchip = NULL; | |
735 | ||
736 | err = pci_enable_device(pci); | |
737 | if (err < 0) | |
738 | return err; | |
739 | ||
740 | pci_set_master(pci); | |
741 | ||
742 | chip = (snd_cx88_card_t *) card->private_data; | |
743 | ||
744 | core = cx88_core_get(pci); | |
31dcbf99 DS |
745 | if (NULL == core) { |
746 | err = -EINVAL; | |
31dcbf99 DS |
747 | return err; |
748 | } | |
b7f355d2 | 749 | |
284901a9 | 750 | if (!pci_dma_supported(pci,DMA_BIT_MASK(32))) { |
b7f355d2 MCC |
751 | dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name); |
752 | err = -EIO; | |
753 | cx88_core_put(core,pci); | |
754 | return err; | |
755 | } | |
756 | ||
757 | ||
758 | /* pci init */ | |
759 | chip->card = card; | |
760 | chip->pci = pci; | |
761 | chip->irq = -1; | |
762 | spin_lock_init(&chip->reg_lock); | |
763 | ||
b7f355d2 MCC |
764 | chip->core = core; |
765 | ||
766 | /* get irq */ | |
767 | err = request_irq(chip->pci->irq, cx8801_irq, | |
8076fe32 | 768 | IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip); |
b7f355d2 MCC |
769 | if (err < 0) { |
770 | dprintk(0, "%s: can't get IRQ %d\n", | |
771 | chip->core->name, chip->pci->irq); | |
772 | return err; | |
773 | } | |
774 | ||
775 | /* print pci info */ | |
19453bc1 | 776 | pci_read_config_byte(pci, PCI_LATENCY_TIMER, &pci_lat); |
b7f355d2 MCC |
777 | |
778 | dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, " | |
228aef63 | 779 | "latency: %d, mmio: 0x%llx\n", core->name, devno, |
19453bc1 TP |
780 | pci_name(pci), pci->revision, pci->irq, |
781 | pci_lat, (unsigned long long)pci_resource_start(pci,0)); | |
b7f355d2 MCC |
782 | |
783 | chip->irq = pci->irq; | |
784 | synchronize_irq(chip->irq); | |
785 | ||
786 | snd_card_set_dev(card, &pci->dev); | |
787 | ||
788 | *rchip = chip; | |
789 | ||
790 | return 0; | |
791 | } | |
792 | ||
793 | static int __devinit cx88_audio_initdev(struct pci_dev *pci, | |
794 | const struct pci_device_id *pci_id) | |
795 | { | |
f7cbb7fc | 796 | struct snd_card *card; |
b7f355d2 MCC |
797 | snd_cx88_card_t *chip; |
798 | int err; | |
799 | ||
800 | if (devno >= SNDRV_CARDS) | |
801 | return (-ENODEV); | |
802 | ||
803 | if (!enable[devno]) { | |
804 | ++devno; | |
805 | return (-ENOENT); | |
806 | } | |
807 | ||
758021bf TI |
808 | err = snd_card_create(index[devno], id[devno], THIS_MODULE, |
809 | sizeof(snd_cx88_card_t), &card); | |
810 | if (err < 0) | |
811 | return err; | |
b7f355d2 MCC |
812 | |
813 | card->private_free = snd_cx88_dev_free; | |
814 | ||
815 | err = snd_cx88_create(card, pci, &chip); | |
816 | if (err < 0) | |
a8782f66 | 817 | goto error; |
b7f355d2 MCC |
818 | |
819 | err = snd_cx88_pcm(chip, 0, "CX88 Digital"); | |
82896f29 TP |
820 | if (err < 0) |
821 | goto error; | |
b7f355d2 | 822 | |
54ac005a TP |
823 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_volume, chip)); |
824 | if (err < 0) | |
825 | goto error; | |
826 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_dac_switch, chip)); | |
827 | if (err < 0) | |
828 | goto error; | |
829 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_source_switch, chip)); | |
82896f29 TP |
830 | if (err < 0) |
831 | goto error; | |
b7f355d2 MCC |
832 | |
833 | strcpy (card->driver, "CX88x"); | |
834 | sprintf(card->shortname, "Conexant CX%x", pci->device); | |
228aef63 GKH |
835 | sprintf(card->longname, "%s at %#llx", |
836 | card->shortname,(unsigned long long)pci_resource_start(pci, 0)); | |
b7f355d2 MCC |
837 | strcpy (card->mixername, "CX88"); |
838 | ||
839 | dprintk (0, "%s/%i: ALSA support for cx2388x boards\n", | |
840 | card->driver,devno); | |
841 | ||
842 | err = snd_card_register(card); | |
82896f29 TP |
843 | if (err < 0) |
844 | goto error; | |
b7f355d2 MCC |
845 | pci_set_drvdata(pci,card); |
846 | ||
847 | devno++; | |
848 | return 0; | |
82896f29 TP |
849 | |
850 | error: | |
851 | snd_card_free(card); | |
852 | return err; | |
b7f355d2 MCC |
853 | } |
854 | /* | |
855 | * ALSA destructor | |
856 | */ | |
857 | static void __devexit cx88_audio_finidev(struct pci_dev *pci) | |
858 | { | |
859 | struct cx88_audio_dev *card = pci_get_drvdata(pci); | |
860 | ||
861 | snd_card_free((void *)card); | |
862 | ||
863 | pci_set_drvdata(pci, NULL); | |
864 | ||
865 | devno--; | |
866 | } | |
867 | ||
868 | /* | |
869 | * PCI driver definition | |
870 | */ | |
871 | ||
872 | static struct pci_driver cx88_audio_pci_driver = { | |
873 | .name = "cx88_audio", | |
874 | .id_table = cx88_audio_pci_tbl, | |
875 | .probe = cx88_audio_initdev, | |
e36bc31f | 876 | .remove = __devexit_p(cx88_audio_finidev), |
b7f355d2 MCC |
877 | }; |
878 | ||
879 | /**************************************************************************** | |
880 | LINUX MODULE INIT | |
881 | ****************************************************************************/ | |
882 | ||
883 | /* | |
884 | * module init | |
885 | */ | |
e36bc31f | 886 | static int __init cx88_audio_init(void) |
b7f355d2 MCC |
887 | { |
888 | printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n", | |
889 | (CX88_VERSION_CODE >> 16) & 0xff, | |
890 | (CX88_VERSION_CODE >> 8) & 0xff, | |
891 | CX88_VERSION_CODE & 0xff); | |
892 | #ifdef SNAPSHOT | |
893 | printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n", | |
894 | SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100); | |
895 | #endif | |
896 | return pci_register_driver(&cx88_audio_pci_driver); | |
897 | } | |
898 | ||
899 | /* | |
900 | * module remove | |
901 | */ | |
e36bc31f | 902 | static void __exit cx88_audio_fini(void) |
b7f355d2 | 903 | { |
b7f355d2 MCC |
904 | pci_unregister_driver(&cx88_audio_pci_driver); |
905 | } | |
906 | ||
907 | module_init(cx88_audio_init); | |
908 | module_exit(cx88_audio_fini); | |
909 | ||
910 | /* ----------------------------------------------------------- */ | |
911 | /* | |
912 | * Local variables: | |
913 | * c-basic-offset: 8 | |
914 | * End: | |
915 | */ |