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 | ||
b7f355d2 MCC |
57 | struct cx88_audio_dev { |
58 | struct cx88_core *core; | |
59 | struct cx88_dmaqueue q; | |
60 | ||
61 | /* pci i/o */ | |
62 | struct pci_dev *pci; | |
b7f355d2 MCC |
63 | |
64 | /* audio controls */ | |
65 | int irq; | |
66 | ||
f7cbb7fc | 67 | struct snd_card *card; |
b7f355d2 MCC |
68 | |
69 | spinlock_t reg_lock; | |
05b27233 | 70 | atomic_t count; |
b7f355d2 MCC |
71 | |
72 | unsigned int dma_size; | |
73 | unsigned int period_size; | |
74 | unsigned int num_periods; | |
75 | ||
c1accaa2 | 76 | struct videobuf_dmabuf *dma_risc; |
b7f355d2 | 77 | |
05b27233 | 78 | struct cx88_buffer *buf; |
b7f355d2 | 79 | |
05b27233 | 80 | struct snd_pcm_substream *substream; |
b7f355d2 MCC |
81 | }; |
82 | typedef struct cx88_audio_dev snd_cx88_card_t; | |
83 | ||
84 | ||
85 | ||
86 | /**************************************************************************** | |
87 | Module global static vars | |
88 | ****************************************************************************/ | |
89 | ||
90 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | |
91 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
92 | static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1}; | |
b7f355d2 MCC |
93 | |
94 | module_param_array(enable, bool, NULL, 0444); | |
95 | MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled."); | |
96 | ||
97 | module_param_array(index, int, NULL, 0444); | |
98 | MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s)."); | |
99 | ||
100 | ||
101 | /**************************************************************************** | |
102 | Module macros | |
103 | ****************************************************************************/ | |
104 | ||
105 | MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards"); | |
106 | MODULE_AUTHOR("Ricardo Cerqueira"); | |
2e7c6dc3 | 107 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>"); |
b7f355d2 MCC |
108 | MODULE_LICENSE("GPL"); |
109 | MODULE_SUPPORTED_DEVICE("{{Conexant,23881}," | |
110 | "{{Conexant,23882}," | |
111 | "{{Conexant,23883}"); | |
a5ed425c | 112 | static unsigned int debug; |
b7f355d2 MCC |
113 | module_param(debug,int,0644); |
114 | MODULE_PARM_DESC(debug,"enable debug messages"); | |
115 | ||
116 | /**************************************************************************** | |
117 | Module specific funtions | |
118 | ****************************************************************************/ | |
119 | ||
120 | /* | |
121 | * BOARD Specific: Sets audio DMA | |
122 | */ | |
123 | ||
be8a82d1 | 124 | static int _cx88_start_audio_dma(snd_cx88_card_t *chip) |
b7f355d2 MCC |
125 | { |
126 | struct cx88_buffer *buf = chip->buf; | |
127 | struct cx88_core *core=chip->core; | |
128 | struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25]; | |
129 | ||
59fd8f8d TP |
130 | /* Make sure RISC/FIFO are off before changing FIFO/RISC settings */ |
131 | cx_clear(MO_AUD_DMACNTRL, 0x11); | |
b7f355d2 MCC |
132 | |
133 | /* setup fifo + format - out channel */ | |
59fd8f8d | 134 | cx88_sram_channel_setup(chip->core, audio_ch, buf->bpl, buf->risc.dma); |
b7f355d2 MCC |
135 | |
136 | /* sets bpl size */ | |
137 | cx_write(MO_AUDD_LNGTH, buf->bpl); | |
138 | ||
139 | /* reset counter */ | |
05b27233 TP |
140 | cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET); |
141 | atomic_set(&chip->count, 0); | |
b7f355d2 | 142 | |
05b27233 TP |
143 | dprintk(1, "Start audio DMA, %d B/line, %d lines/FIFO, %d periods, %d " |
144 | "byte buffer\n", buf->bpl, cx_read(audio_ch->cmds_start + 8)>>1, | |
59fd8f8d TP |
145 | chip->num_periods, buf->bpl * chip->num_periods); |
146 | ||
b7f355d2 | 147 | /* Enables corresponding bits at AUD_INT_STAT */ |
59fd8f8d TP |
148 | cx_write(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | |
149 | AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1); | |
150 | ||
151 | /* Clean any pending interrupt bits already set */ | |
152 | cx_write(MO_AUD_INTSTAT, ~0); | |
153 | ||
154 | /* enable audio irqs */ | |
155 | cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | PCI_INT_AUDINT); | |
b7f355d2 MCC |
156 | |
157 | /* start dma */ | |
158 | cx_set(MO_DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */ | |
159 | cx_set(MO_AUD_DMACNTRL, 0x11); /* audio downstream FIFO and RISC enable */ | |
160 | ||
161 | if (debug) | |
59fd8f8d | 162 | cx88_sram_channel_dump(chip->core, audio_ch); |
b7f355d2 MCC |
163 | |
164 | return 0; | |
165 | } | |
166 | ||
167 | /* | |
168 | * BOARD Specific: Resets audio DMA | |
169 | */ | |
be8a82d1 | 170 | static int _cx88_stop_audio_dma(snd_cx88_card_t *chip) |
b7f355d2 MCC |
171 | { |
172 | struct cx88_core *core=chip->core; | |
173 | dprintk(1, "Stopping audio DMA\n"); | |
174 | ||
175 | /* stop dma */ | |
176 | cx_clear(MO_AUD_DMACNTRL, 0x11); | |
177 | ||
178 | /* disable irqs */ | |
8ddac9ee | 179 | cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT); |
59fd8f8d TP |
180 | cx_clear(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | |
181 | AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1); | |
b7f355d2 MCC |
182 | |
183 | if (debug) | |
184 | cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]); | |
185 | ||
186 | return 0; | |
187 | } | |
188 | ||
05b27233 | 189 | #define MAX_IRQ_LOOP 50 |
b7f355d2 MCC |
190 | |
191 | /* | |
192 | * BOARD Specific: IRQ dma bits | |
193 | */ | |
194 | static char *cx88_aud_irqs[32] = { | |
195 | "dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */ | |
196 | NULL, /* reserved */ | |
197 | "dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */ | |
198 | NULL, /* reserved */ | |
199 | "dnf_of", "upf_uf", "rds_dnf_uf", /* 8-10 */ | |
200 | NULL, /* reserved */ | |
201 | "dn_sync", "up_sync", "rds_dn_sync", /* 12-14 */ | |
202 | NULL, /* reserved */ | |
203 | "opc_err", "par_err", "rip_err", /* 16-18 */ | |
204 | "pci_abort", "ber_irq", "mchg_irq" /* 19-21 */ | |
205 | }; | |
206 | ||
207 | /* | |
208 | * BOARD Specific: Threats IRQ audio specific calls | |
209 | */ | |
210 | static void cx8801_aud_irq(snd_cx88_card_t *chip) | |
211 | { | |
212 | struct cx88_core *core = chip->core; | |
213 | u32 status, mask; | |
b7f355d2 MCC |
214 | |
215 | status = cx_read(MO_AUD_INTSTAT); | |
216 | mask = cx_read(MO_AUD_INTMSK); | |
05b27233 | 217 | if (0 == (status & mask)) |
b7f355d2 | 218 | return; |
b7f355d2 MCC |
219 | cx_write(MO_AUD_INTSTAT, status); |
220 | if (debug > 1 || (status & mask & ~0xff)) | |
221 | cx88_print_irqbits(core->name, "irq aud", | |
66623a04 MCC |
222 | cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs), |
223 | status, mask); | |
b7f355d2 | 224 | /* risc op code error */ |
59fd8f8d | 225 | if (status & AUD_INT_OPC_ERR) { |
05b27233 | 226 | printk(KERN_WARNING "%s/1: Audio risc op code error\n",core->name); |
b7f355d2 MCC |
227 | cx_clear(MO_AUD_DMACNTRL, 0x11); |
228 | cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]); | |
229 | } | |
05b27233 TP |
230 | if (status & AUD_INT_DN_SYNC) { |
231 | dprintk(1, "Downstream sync error\n"); | |
232 | cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET); | |
233 | return; | |
234 | } | |
b7f355d2 | 235 | /* risc1 downstream */ |
59fd8f8d | 236 | if (status & AUD_INT_DN_RISCI1) { |
05b27233 | 237 | atomic_set(&chip->count, cx_read(MO_AUDD_GPCNT)); |
b7f355d2 MCC |
238 | snd_pcm_period_elapsed(chip->substream); |
239 | } | |
b7f355d2 MCC |
240 | /* FIXME: Any other status should deserve a special handling? */ |
241 | } | |
242 | ||
243 | /* | |
244 | * BOARD Specific: Handles IRQ calls | |
245 | */ | |
7d12e780 | 246 | static irqreturn_t cx8801_irq(int irq, void *dev_id) |
b7f355d2 MCC |
247 | { |
248 | snd_cx88_card_t *chip = dev_id; | |
249 | struct cx88_core *core = chip->core; | |
250 | u32 status; | |
251 | int loop, handled = 0; | |
252 | ||
253 | for (loop = 0; loop < MAX_IRQ_LOOP; loop++) { | |
8ddac9ee TP |
254 | status = cx_read(MO_PCI_INTSTAT) & |
255 | (core->pci_irqmask | PCI_INT_AUDINT); | |
b7f355d2 MCC |
256 | if (0 == status) |
257 | goto out; | |
05b27233 TP |
258 | dprintk(3, "cx8801_irq loop %d/%d, status %x\n", |
259 | loop, MAX_IRQ_LOOP, status); | |
b7f355d2 MCC |
260 | handled = 1; |
261 | cx_write(MO_PCI_INTSTAT, status); | |
262 | ||
5ba862b7 TP |
263 | if (status & core->pci_irqmask) |
264 | cx88_core_irq(core, status); | |
05b27233 | 265 | if (status & PCI_INT_AUDINT) |
b7f355d2 | 266 | cx8801_aud_irq(chip); |
05b27233 | 267 | } |
b7f355d2 MCC |
268 | |
269 | if (MAX_IRQ_LOOP == loop) { | |
05b27233 TP |
270 | printk(KERN_ERR |
271 | "%s/1: IRQ loop detected, disabling interrupts\n", | |
b7f355d2 | 272 | core->name); |
8ddac9ee | 273 | cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT); |
b7f355d2 MCC |
274 | } |
275 | ||
276 | out: | |
277 | return IRQ_RETVAL(handled); | |
278 | } | |
279 | ||
280 | ||
281 | static int dsp_buffer_free(snd_cx88_card_t *chip) | |
282 | { | |
283 | BUG_ON(!chip->dma_size); | |
284 | ||
285 | dprintk(2,"Freeing buffer\n"); | |
0705135e | 286 | videobuf_sg_dma_unmap(&chip->pci->dev, chip->dma_risc); |
c1accaa2 | 287 | videobuf_dma_free(chip->dma_risc); |
b7f355d2 MCC |
288 | btcx_riscmem_free(chip->pci,&chip->buf->risc); |
289 | kfree(chip->buf); | |
290 | ||
c1accaa2 | 291 | chip->dma_risc = NULL; |
b7f355d2 MCC |
292 | chip->dma_size = 0; |
293 | ||
05b27233 | 294 | return 0; |
b7f355d2 MCC |
295 | } |
296 | ||
297 | /**************************************************************************** | |
298 | ALSA PCM Interface | |
299 | ****************************************************************************/ | |
300 | ||
301 | /* | |
302 | * Digital hardware definition | |
303 | */ | |
05b27233 | 304 | #define DEFAULT_FIFO_SIZE 4096 |
f7cbb7fc | 305 | static struct snd_pcm_hardware snd_cx88_digital_hw = { |
b7f355d2 MCC |
306 | .info = SNDRV_PCM_INFO_MMAP | |
307 | SNDRV_PCM_INFO_INTERLEAVED | | |
308 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
309 | SNDRV_PCM_INFO_MMAP_VALID, | |
310 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
311 | ||
312 | .rates = SNDRV_PCM_RATE_48000, | |
313 | .rate_min = 48000, | |
314 | .rate_max = 48000, | |
5a5b3b5d | 315 | .channels_min = 2, |
b7f355d2 | 316 | .channels_max = 2, |
05b27233 TP |
317 | /* Analog audio output will be full of clicks and pops if there |
318 | are not exactly four lines in the SRAM FIFO buffer. */ | |
319 | .period_bytes_min = DEFAULT_FIFO_SIZE/4, | |
320 | .period_bytes_max = DEFAULT_FIFO_SIZE/4, | |
321 | .periods_min = 1, | |
322 | .periods_max = 1024, | |
323 | .buffer_bytes_max = (1024*1024), | |
b7f355d2 MCC |
324 | }; |
325 | ||
b7f355d2 MCC |
326 | /* |
327 | * audio pcm capture open callback | |
328 | */ | |
f7cbb7fc | 329 | static int snd_cx88_pcm_open(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
330 | { |
331 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
f7cbb7fc | 332 | struct snd_pcm_runtime *runtime = substream->runtime; |
b7f355d2 MCC |
333 | int err; |
334 | ||
83ee87a3 MCC |
335 | if (!chip) { |
336 | printk(KERN_ERR "BUG: cx88 can't find device struct." | |
337 | " Can't proceed with open\n"); | |
338 | return -ENODEV; | |
339 | } | |
340 | ||
05b27233 | 341 | err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS); |
b7f355d2 MCC |
342 | if (err < 0) |
343 | goto _error; | |
344 | ||
345 | chip->substream = substream; | |
346 | ||
b7f355d2 MCC |
347 | runtime->hw = snd_cx88_digital_hw; |
348 | ||
05b27233 TP |
349 | if (cx88_sram_channels[SRAM_CH25].fifo_size != DEFAULT_FIFO_SIZE) { |
350 | unsigned int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4; | |
351 | bpl &= ~7; /* must be multiple of 8 */ | |
352 | runtime->hw.period_bytes_min = bpl; | |
353 | runtime->hw.period_bytes_max = bpl; | |
354 | } | |
355 | ||
b7f355d2 MCC |
356 | return 0; |
357 | _error: | |
358 | dprintk(1,"Error opening PCM!\n"); | |
b7f355d2 MCC |
359 | return err; |
360 | } | |
361 | ||
362 | /* | |
363 | * audio close callback | |
364 | */ | |
f7cbb7fc | 365 | static int snd_cx88_close(struct snd_pcm_substream *substream) |
b7f355d2 | 366 | { |
b7f355d2 MCC |
367 | return 0; |
368 | } | |
369 | ||
370 | /* | |
371 | * hw_params callback | |
372 | */ | |
f7cbb7fc TI |
373 | static int snd_cx88_hw_params(struct snd_pcm_substream * substream, |
374 | struct snd_pcm_hw_params * hw_params) | |
b7f355d2 MCC |
375 | { |
376 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
c1accaa2 MCC |
377 | struct videobuf_dmabuf *dma; |
378 | ||
b7f355d2 | 379 | struct cx88_buffer *buf; |
05b27233 | 380 | int ret; |
b7f355d2 MCC |
381 | |
382 | if (substream->runtime->dma_area) { | |
383 | dsp_buffer_free(chip); | |
384 | substream->runtime->dma_area = NULL; | |
385 | } | |
386 | ||
b7f355d2 MCC |
387 | chip->period_size = params_period_bytes(hw_params); |
388 | chip->num_periods = params_periods(hw_params); | |
389 | chip->dma_size = chip->period_size * params_periods(hw_params); | |
390 | ||
391 | BUG_ON(!chip->dma_size); | |
05b27233 | 392 | BUG_ON(chip->num_periods & (chip->num_periods-1)); |
b7f355d2 | 393 | |
0705135e | 394 | buf = videobuf_sg_alloc(sizeof(*buf)); |
b7f355d2 MCC |
395 | if (NULL == buf) |
396 | return -ENOMEM; | |
b7f355d2 MCC |
397 | |
398 | buf->vb.memory = V4L2_MEMORY_MMAP; | |
05b27233 | 399 | buf->vb.field = V4L2_FIELD_NONE; |
b7f355d2 | 400 | buf->vb.width = chip->period_size; |
05b27233 | 401 | buf->bpl = chip->period_size; |
b7f355d2 MCC |
402 | buf->vb.height = chip->num_periods; |
403 | buf->vb.size = chip->dma_size; | |
b7f355d2 | 404 | |
0705135e | 405 | dma = videobuf_to_dma(&buf->vb); |
c1accaa2 MCC |
406 | videobuf_dma_init(dma); |
407 | ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE, | |
b7f355d2 | 408 | (PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT)); |
05b27233 TP |
409 | if (ret < 0) |
410 | goto error; | |
b7f355d2 | 411 | |
0705135e | 412 | ret = videobuf_sg_dma_map(&chip->pci->dev, dma); |
05b27233 TP |
413 | if (ret < 0) |
414 | goto error; | |
b7f355d2 | 415 | |
c1accaa2 | 416 | ret = cx88_risc_databuffer(chip->pci, &buf->risc, dma->sglist, |
05b27233 TP |
417 | buf->vb.width, buf->vb.height, 1); |
418 | if (ret < 0) | |
419 | goto error; | |
b7f355d2 | 420 | |
05b27233 TP |
421 | /* Loop back to start of program */ |
422 | buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC); | |
b7f355d2 MCC |
423 | buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma); |
424 | ||
0fc0686e | 425 | buf->vb.state = VIDEOBUF_PREPARED; |
b7f355d2 | 426 | |
b7f355d2 | 427 | chip->buf = buf; |
c1accaa2 | 428 | chip->dma_risc = dma; |
b7f355d2 | 429 | |
c1accaa2 | 430 | substream->runtime->dma_area = chip->dma_risc->vmalloc; |
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 | */ | |
537 | static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name) | |
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 | ||
581 | /* OK - TODO: test it */ | |
54ac005a TP |
582 | static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol, |
583 | struct snd_ctl_elem_value *value) | |
b7f355d2 MCC |
584 | { |
585 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
586 | struct cx88_core *core=chip->core; | |
cca80b97 | 587 | int left, right, v, b; |
82896f29 TP |
588 | int changed = 0; |
589 | u32 old; | |
590 | ||
cca80b97 CL |
591 | left = value->value.integer.value[0] & 0x3f; |
592 | right = value->value.integer.value[1] & 0x3f; | |
593 | b = right - left; | |
82896f29 | 594 | if (b < 0) { |
cca80b97 | 595 | v = 0x3f - left; |
82896f29 TP |
596 | b = (-b) | 0x40; |
597 | } else { | |
cca80b97 | 598 | v = 0x3f - right; |
82896f29 | 599 | } |
05b27233 | 600 | /* Do we really know this will always be called with IRQs on? */ |
b7f355d2 | 601 | spin_lock_irq(&chip->reg_lock); |
82896f29 TP |
602 | old = cx_read(AUD_VOL_CTL); |
603 | if (v != (old & 0x3f)) { | |
604 | cx_write(AUD_VOL_CTL, (old & ~0x3f) | v); | |
605 | changed = 1; | |
606 | } | |
607 | if (cx_read(AUD_BAL_CTL) != b) { | |
608 | cx_write(AUD_BAL_CTL, b); | |
609 | changed = 1; | |
610 | } | |
b7f355d2 MCC |
611 | spin_unlock_irq(&chip->reg_lock); |
612 | ||
82896f29 | 613 | return changed; |
b7f355d2 MCC |
614 | } |
615 | ||
bbaccc04 TP |
616 | static const DECLARE_TLV_DB_SCALE(snd_cx88_db_scale, -6300, 100, 0); |
617 | ||
54ac005a | 618 | static struct snd_kcontrol_new snd_cx88_volume = { |
b7f355d2 | 619 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
bbaccc04 TP |
620 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | |
621 | SNDRV_CTL_ELEM_ACCESS_TLV_READ, | |
54ac005a TP |
622 | .name = "Playback Volume", |
623 | .info = snd_cx88_volume_info, | |
624 | .get = snd_cx88_volume_get, | |
625 | .put = snd_cx88_volume_put, | |
bbaccc04 | 626 | .tlv.p = snd_cx88_db_scale, |
b7f355d2 MCC |
627 | }; |
628 | ||
54ac005a TP |
629 | static int snd_cx88_switch_get(struct snd_kcontrol *kcontrol, |
630 | struct snd_ctl_elem_value *value) | |
631 | { | |
632 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
633 | struct cx88_core *core = chip->core; | |
634 | u32 bit = kcontrol->private_value; | |
635 | ||
636 | value->value.integer.value[0] = !(cx_read(AUD_VOL_CTL) & bit); | |
637 | return 0; | |
638 | } | |
639 | ||
640 | static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol, | |
641 | struct snd_ctl_elem_value *value) | |
642 | { | |
643 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
644 | struct cx88_core *core = chip->core; | |
645 | u32 bit = kcontrol->private_value; | |
646 | int ret = 0; | |
647 | u32 vol; | |
648 | ||
649 | spin_lock_irq(&chip->reg_lock); | |
650 | vol = cx_read(AUD_VOL_CTL); | |
651 | if (value->value.integer.value[0] != !(vol & bit)) { | |
652 | vol ^= bit; | |
653 | cx_write(AUD_VOL_CTL, vol); | |
654 | ret = 1; | |
655 | } | |
656 | spin_unlock_irq(&chip->reg_lock); | |
657 | return ret; | |
658 | } | |
659 | ||
660 | static struct snd_kcontrol_new snd_cx88_dac_switch = { | |
661 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
662 | .name = "Playback Switch", | |
663 | .info = snd_ctl_boolean_mono_info, | |
664 | .get = snd_cx88_switch_get, | |
665 | .put = snd_cx88_switch_put, | |
666 | .private_value = (1<<8), | |
667 | }; | |
668 | ||
669 | static struct snd_kcontrol_new snd_cx88_source_switch = { | |
670 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
671 | .name = "Capture Switch", | |
672 | .info = snd_ctl_boolean_mono_info, | |
673 | .get = snd_cx88_switch_get, | |
674 | .put = snd_cx88_switch_put, | |
675 | .private_value = (1<<6), | |
676 | }; | |
b7f355d2 MCC |
677 | |
678 | /**************************************************************************** | |
679 | Basic Flow for Sound Devices | |
680 | ****************************************************************************/ | |
681 | ||
682 | /* | |
683 | * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio | |
684 | * Only boards with eeprom and byte 1 at eeprom=1 have it | |
685 | */ | |
686 | ||
396c9b92 | 687 | static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = { |
b7f355d2 MCC |
688 | {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, |
689 | {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, | |
690 | {0, } | |
691 | }; | |
692 | MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl); | |
693 | ||
694 | /* | |
695 | * Chip-specific destructor | |
696 | */ | |
697 | ||
698 | static int snd_cx88_free(snd_cx88_card_t *chip) | |
699 | { | |
700 | ||
f000fd80 | 701 | if (chip->irq >= 0) |
b7f355d2 | 702 | free_irq(chip->irq, chip); |
b7f355d2 MCC |
703 | |
704 | cx88_core_put(chip->core,chip->pci); | |
705 | ||
706 | pci_disable_device(chip->pci); | |
707 | return 0; | |
708 | } | |
709 | ||
710 | /* | |
711 | * Component Destructor | |
712 | */ | |
f7cbb7fc | 713 | static void snd_cx88_dev_free(struct snd_card * card) |
b7f355d2 MCC |
714 | { |
715 | snd_cx88_card_t *chip = card->private_data; | |
716 | ||
717 | snd_cx88_free(chip); | |
718 | } | |
719 | ||
720 | ||
721 | /* | |
722 | * Alsa Constructor - Component probe | |
723 | */ | |
724 | ||
a5ed425c | 725 | static int devno; |
f7cbb7fc TI |
726 | static int __devinit snd_cx88_create(struct snd_card *card, |
727 | struct pci_dev *pci, | |
728 | snd_cx88_card_t **rchip) | |
b7f355d2 MCC |
729 | { |
730 | snd_cx88_card_t *chip; | |
731 | struct cx88_core *core; | |
732 | int err; | |
19453bc1 | 733 | unsigned char pci_lat; |
b7f355d2 MCC |
734 | |
735 | *rchip = NULL; | |
736 | ||
737 | err = pci_enable_device(pci); | |
738 | if (err < 0) | |
739 | return err; | |
740 | ||
741 | pci_set_master(pci); | |
742 | ||
743 | chip = (snd_cx88_card_t *) card->private_data; | |
744 | ||
745 | core = cx88_core_get(pci); | |
31dcbf99 DS |
746 | if (NULL == core) { |
747 | err = -EINVAL; | |
31dcbf99 DS |
748 | return err; |
749 | } | |
b7f355d2 | 750 | |
284901a9 | 751 | if (!pci_dma_supported(pci,DMA_BIT_MASK(32))) { |
b7f355d2 MCC |
752 | dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name); |
753 | err = -EIO; | |
754 | cx88_core_put(core,pci); | |
755 | return err; | |
756 | } | |
757 | ||
758 | ||
759 | /* pci init */ | |
760 | chip->card = card; | |
761 | chip->pci = pci; | |
762 | chip->irq = -1; | |
763 | spin_lock_init(&chip->reg_lock); | |
764 | ||
b7f355d2 MCC |
765 | chip->core = core; |
766 | ||
767 | /* get irq */ | |
768 | err = request_irq(chip->pci->irq, cx8801_irq, | |
8076fe32 | 769 | IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip); |
b7f355d2 MCC |
770 | if (err < 0) { |
771 | dprintk(0, "%s: can't get IRQ %d\n", | |
772 | chip->core->name, chip->pci->irq); | |
773 | return err; | |
774 | } | |
775 | ||
776 | /* print pci info */ | |
19453bc1 | 777 | pci_read_config_byte(pci, PCI_LATENCY_TIMER, &pci_lat); |
b7f355d2 MCC |
778 | |
779 | dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, " | |
228aef63 | 780 | "latency: %d, mmio: 0x%llx\n", core->name, devno, |
19453bc1 TP |
781 | pci_name(pci), pci->revision, pci->irq, |
782 | pci_lat, (unsigned long long)pci_resource_start(pci,0)); | |
b7f355d2 MCC |
783 | |
784 | chip->irq = pci->irq; | |
785 | synchronize_irq(chip->irq); | |
786 | ||
787 | snd_card_set_dev(card, &pci->dev); | |
788 | ||
789 | *rchip = chip; | |
790 | ||
791 | return 0; | |
792 | } | |
793 | ||
794 | static int __devinit cx88_audio_initdev(struct pci_dev *pci, | |
795 | const struct pci_device_id *pci_id) | |
796 | { | |
f7cbb7fc | 797 | struct snd_card *card; |
b7f355d2 MCC |
798 | snd_cx88_card_t *chip; |
799 | int err; | |
800 | ||
801 | if (devno >= SNDRV_CARDS) | |
802 | return (-ENODEV); | |
803 | ||
804 | if (!enable[devno]) { | |
805 | ++devno; | |
806 | return (-ENOENT); | |
807 | } | |
808 | ||
758021bf TI |
809 | err = snd_card_create(index[devno], id[devno], THIS_MODULE, |
810 | sizeof(snd_cx88_card_t), &card); | |
811 | if (err < 0) | |
812 | return err; | |
b7f355d2 MCC |
813 | |
814 | card->private_free = snd_cx88_dev_free; | |
815 | ||
816 | err = snd_cx88_create(card, pci, &chip); | |
817 | if (err < 0) | |
a8782f66 | 818 | goto error; |
b7f355d2 MCC |
819 | |
820 | err = snd_cx88_pcm(chip, 0, "CX88 Digital"); | |
82896f29 TP |
821 | if (err < 0) |
822 | goto error; | |
b7f355d2 | 823 | |
54ac005a TP |
824 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_volume, chip)); |
825 | if (err < 0) | |
826 | goto error; | |
827 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_dac_switch, chip)); | |
828 | if (err < 0) | |
829 | goto error; | |
830 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_source_switch, chip)); | |
82896f29 TP |
831 | if (err < 0) |
832 | goto error; | |
b7f355d2 MCC |
833 | |
834 | strcpy (card->driver, "CX88x"); | |
835 | sprintf(card->shortname, "Conexant CX%x", pci->device); | |
228aef63 GKH |
836 | sprintf(card->longname, "%s at %#llx", |
837 | card->shortname,(unsigned long long)pci_resource_start(pci, 0)); | |
b7f355d2 MCC |
838 | strcpy (card->mixername, "CX88"); |
839 | ||
840 | dprintk (0, "%s/%i: ALSA support for cx2388x boards\n", | |
841 | card->driver,devno); | |
842 | ||
843 | err = snd_card_register(card); | |
82896f29 TP |
844 | if (err < 0) |
845 | goto error; | |
b7f355d2 MCC |
846 | pci_set_drvdata(pci,card); |
847 | ||
848 | devno++; | |
849 | return 0; | |
82896f29 TP |
850 | |
851 | error: | |
852 | snd_card_free(card); | |
853 | return err; | |
b7f355d2 MCC |
854 | } |
855 | /* | |
856 | * ALSA destructor | |
857 | */ | |
858 | static void __devexit cx88_audio_finidev(struct pci_dev *pci) | |
859 | { | |
860 | struct cx88_audio_dev *card = pci_get_drvdata(pci); | |
861 | ||
862 | snd_card_free((void *)card); | |
863 | ||
864 | pci_set_drvdata(pci, NULL); | |
865 | ||
866 | devno--; | |
867 | } | |
868 | ||
869 | /* | |
870 | * PCI driver definition | |
871 | */ | |
872 | ||
873 | static struct pci_driver cx88_audio_pci_driver = { | |
874 | .name = "cx88_audio", | |
875 | .id_table = cx88_audio_pci_tbl, | |
876 | .probe = cx88_audio_initdev, | |
e36bc31f | 877 | .remove = __devexit_p(cx88_audio_finidev), |
b7f355d2 MCC |
878 | }; |
879 | ||
880 | /**************************************************************************** | |
881 | LINUX MODULE INIT | |
882 | ****************************************************************************/ | |
883 | ||
884 | /* | |
885 | * module init | |
886 | */ | |
e36bc31f | 887 | static int __init cx88_audio_init(void) |
b7f355d2 MCC |
888 | { |
889 | printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n", | |
890 | (CX88_VERSION_CODE >> 16) & 0xff, | |
891 | (CX88_VERSION_CODE >> 8) & 0xff, | |
892 | CX88_VERSION_CODE & 0xff); | |
893 | #ifdef SNAPSHOT | |
894 | printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n", | |
895 | SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100); | |
896 | #endif | |
897 | return pci_register_driver(&cx88_audio_pci_driver); | |
898 | } | |
899 | ||
900 | /* | |
901 | * module remove | |
902 | */ | |
e36bc31f | 903 | static void __exit cx88_audio_fini(void) |
b7f355d2 | 904 | { |
b7f355d2 MCC |
905 | pci_unregister_driver(&cx88_audio_pci_driver); |
906 | } | |
907 | ||
908 | module_init(cx88_audio_init); | |
909 | module_exit(cx88_audio_fini); | |
910 | ||
911 | /* ----------------------------------------------------------- */ | |
912 | /* | |
913 | * Local variables: | |
914 | * c-basic-offset: 8 | |
915 | * End: | |
916 | */ |