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Commit | Line | Data |
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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 | 35 | #include <asm/delay.h> |
b7f355d2 MCC |
36 | #include <sound/core.h> |
37 | #include <sound/pcm.h> | |
38 | #include <sound/pcm_params.h> | |
39 | #include <sound/control.h> | |
40 | #include <sound/initval.h> | |
bbaccc04 | 41 | #include <sound/tlv.h> |
b7f355d2 MCC |
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 | ||
54ac005a | 85 | |
b7f355d2 MCC |
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"); | |
c1accaa2 MCC |
286 | videobuf_pci_dma_unmap(chip->pci, chip->dma_risc); |
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 | ||
05b27233 | 335 | err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS); |
b7f355d2 MCC |
336 | if (err < 0) |
337 | goto _error; | |
338 | ||
339 | chip->substream = substream; | |
340 | ||
b7f355d2 MCC |
341 | runtime->hw = snd_cx88_digital_hw; |
342 | ||
05b27233 TP |
343 | if (cx88_sram_channels[SRAM_CH25].fifo_size != DEFAULT_FIFO_SIZE) { |
344 | unsigned int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4; | |
345 | bpl &= ~7; /* must be multiple of 8 */ | |
346 | runtime->hw.period_bytes_min = bpl; | |
347 | runtime->hw.period_bytes_max = bpl; | |
348 | } | |
349 | ||
b7f355d2 MCC |
350 | return 0; |
351 | _error: | |
352 | dprintk(1,"Error opening PCM!\n"); | |
b7f355d2 MCC |
353 | return err; |
354 | } | |
355 | ||
356 | /* | |
357 | * audio close callback | |
358 | */ | |
f7cbb7fc | 359 | static int snd_cx88_close(struct snd_pcm_substream *substream) |
b7f355d2 | 360 | { |
b7f355d2 MCC |
361 | return 0; |
362 | } | |
363 | ||
364 | /* | |
365 | * hw_params callback | |
366 | */ | |
f7cbb7fc TI |
367 | static int snd_cx88_hw_params(struct snd_pcm_substream * substream, |
368 | struct snd_pcm_hw_params * hw_params) | |
b7f355d2 MCC |
369 | { |
370 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
c1accaa2 MCC |
371 | struct videobuf_dmabuf *dma; |
372 | ||
b7f355d2 | 373 | struct cx88_buffer *buf; |
05b27233 | 374 | int ret; |
b7f355d2 MCC |
375 | |
376 | if (substream->runtime->dma_area) { | |
377 | dsp_buffer_free(chip); | |
378 | substream->runtime->dma_area = NULL; | |
379 | } | |
380 | ||
b7f355d2 MCC |
381 | chip->period_size = params_period_bytes(hw_params); |
382 | chip->num_periods = params_periods(hw_params); | |
383 | chip->dma_size = chip->period_size * params_periods(hw_params); | |
384 | ||
385 | BUG_ON(!chip->dma_size); | |
05b27233 | 386 | BUG_ON(chip->num_periods & (chip->num_periods-1)); |
b7f355d2 | 387 | |
c1accaa2 | 388 | buf = videobuf_pci_alloc(sizeof(*buf)); |
b7f355d2 MCC |
389 | if (NULL == buf) |
390 | return -ENOMEM; | |
b7f355d2 MCC |
391 | |
392 | buf->vb.memory = V4L2_MEMORY_MMAP; | |
05b27233 | 393 | buf->vb.field = V4L2_FIELD_NONE; |
b7f355d2 | 394 | buf->vb.width = chip->period_size; |
05b27233 | 395 | buf->bpl = chip->period_size; |
b7f355d2 MCC |
396 | buf->vb.height = chip->num_periods; |
397 | buf->vb.size = chip->dma_size; | |
b7f355d2 | 398 | |
c1accaa2 MCC |
399 | dma=videobuf_to_dma(&buf->vb); |
400 | videobuf_dma_init(dma); | |
401 | ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE, | |
b7f355d2 | 402 | (PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT)); |
05b27233 TP |
403 | if (ret < 0) |
404 | goto error; | |
b7f355d2 | 405 | |
c1accaa2 | 406 | ret = videobuf_pci_dma_map(chip->pci,dma); |
05b27233 TP |
407 | if (ret < 0) |
408 | goto error; | |
b7f355d2 | 409 | |
c1accaa2 | 410 | ret = cx88_risc_databuffer(chip->pci, &buf->risc, dma->sglist, |
05b27233 TP |
411 | buf->vb.width, buf->vb.height, 1); |
412 | if (ret < 0) | |
413 | goto error; | |
b7f355d2 | 414 | |
05b27233 TP |
415 | /* Loop back to start of program */ |
416 | buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC); | |
b7f355d2 MCC |
417 | buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma); |
418 | ||
0fc0686e | 419 | buf->vb.state = VIDEOBUF_PREPARED; |
b7f355d2 | 420 | |
b7f355d2 | 421 | chip->buf = buf; |
c1accaa2 | 422 | chip->dma_risc = dma; |
b7f355d2 | 423 | |
c1accaa2 | 424 | substream->runtime->dma_area = chip->dma_risc->vmalloc; |
f6210c91 TP |
425 | substream->runtime->dma_bytes = chip->dma_size; |
426 | substream->runtime->dma_addr = 0; | |
b7f355d2 | 427 | return 0; |
05b27233 TP |
428 | |
429 | error: | |
430 | kfree(buf); | |
431 | return ret; | |
b7f355d2 MCC |
432 | } |
433 | ||
434 | /* | |
435 | * hw free callback | |
436 | */ | |
f7cbb7fc | 437 | static int snd_cx88_hw_free(struct snd_pcm_substream * substream) |
b7f355d2 MCC |
438 | { |
439 | ||
440 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
441 | ||
442 | if (substream->runtime->dma_area) { | |
443 | dsp_buffer_free(chip); | |
444 | substream->runtime->dma_area = NULL; | |
445 | } | |
446 | ||
447 | return 0; | |
448 | } | |
449 | ||
450 | /* | |
451 | * prepare callback | |
452 | */ | |
f7cbb7fc | 453 | static int snd_cx88_prepare(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
454 | { |
455 | return 0; | |
456 | } | |
457 | ||
b7f355d2 MCC |
458 | /* |
459 | * trigger callback | |
460 | */ | |
f7cbb7fc | 461 | static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd) |
b7f355d2 MCC |
462 | { |
463 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
464 | int err; | |
465 | ||
05b27233 | 466 | /* Local interrupts are already disabled by ALSA */ |
b7f355d2 MCC |
467 | spin_lock(&chip->reg_lock); |
468 | ||
469 | switch (cmd) { | |
470 | case SNDRV_PCM_TRIGGER_START: | |
471 | err=_cx88_start_audio_dma(chip); | |
472 | break; | |
473 | case SNDRV_PCM_TRIGGER_STOP: | |
474 | err=_cx88_stop_audio_dma(chip); | |
475 | break; | |
476 | default: | |
477 | err=-EINVAL; | |
478 | break; | |
479 | } | |
480 | ||
481 | spin_unlock(&chip->reg_lock); | |
482 | ||
483 | return err; | |
484 | } | |
485 | ||
486 | /* | |
487 | * pointer callback | |
488 | */ | |
f7cbb7fc | 489 | static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream) |
b7f355d2 MCC |
490 | { |
491 | snd_cx88_card_t *chip = snd_pcm_substream_chip(substream); | |
f7cbb7fc | 492 | struct snd_pcm_runtime *runtime = substream->runtime; |
05b27233 | 493 | u16 count; |
b7f355d2 | 494 | |
05b27233 | 495 | count = atomic_read(&chip->count); |
b7f355d2 | 496 | |
05b27233 TP |
497 | // dprintk(2, "%s - count %d (+%u), period %d, frame %lu\n", __FUNCTION__, |
498 | // count, new, count & (runtime->periods-1), | |
499 | // runtime->period_size * (count & (runtime->periods-1))); | |
500 | return runtime->period_size * (count & (runtime->periods-1)); | |
b7f355d2 MCC |
501 | } |
502 | ||
f6210c91 TP |
503 | /* |
504 | * page callback (needed for mmap) | |
505 | */ | |
506 | static struct page *snd_cx88_page(struct snd_pcm_substream *substream, | |
507 | unsigned long offset) | |
508 | { | |
509 | void *pageptr = substream->runtime->dma_area + offset; | |
510 | return vmalloc_to_page(pageptr); | |
511 | } | |
512 | ||
b7f355d2 MCC |
513 | /* |
514 | * operators | |
515 | */ | |
f7cbb7fc | 516 | static struct snd_pcm_ops snd_cx88_pcm_ops = { |
b7f355d2 MCC |
517 | .open = snd_cx88_pcm_open, |
518 | .close = snd_cx88_close, | |
519 | .ioctl = snd_pcm_lib_ioctl, | |
520 | .hw_params = snd_cx88_hw_params, | |
521 | .hw_free = snd_cx88_hw_free, | |
522 | .prepare = snd_cx88_prepare, | |
523 | .trigger = snd_cx88_card_trigger, | |
524 | .pointer = snd_cx88_pointer, | |
f6210c91 | 525 | .page = snd_cx88_page, |
b7f355d2 MCC |
526 | }; |
527 | ||
528 | /* | |
529 | * create a PCM device | |
530 | */ | |
531 | static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name) | |
532 | { | |
533 | int err; | |
f7cbb7fc | 534 | struct snd_pcm *pcm; |
b7f355d2 MCC |
535 | |
536 | err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); | |
537 | if (err < 0) | |
538 | return err; | |
539 | pcm->private_data = chip; | |
540 | strcpy(pcm->name, name); | |
541 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx88_pcm_ops); | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
546 | /**************************************************************************** | |
547 | CONTROL INTERFACE | |
548 | ****************************************************************************/ | |
54ac005a TP |
549 | static int snd_cx88_volume_info(struct snd_kcontrol *kcontrol, |
550 | struct snd_ctl_elem_info *info) | |
b7f355d2 MCC |
551 | { |
552 | info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
82896f29 | 553 | info->count = 2; |
b7f355d2 MCC |
554 | info->value.integer.min = 0; |
555 | info->value.integer.max = 0x3f; | |
556 | ||
557 | return 0; | |
558 | } | |
559 | ||
54ac005a TP |
560 | static int snd_cx88_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 */ | |
54ac005a TP |
576 | static int snd_cx88_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 | ||
bbaccc04 TP |
608 | static const DECLARE_TLV_DB_SCALE(snd_cx88_db_scale, -6300, 100, 0); |
609 | ||
54ac005a | 610 | static struct snd_kcontrol_new snd_cx88_volume = { |
b7f355d2 | 611 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
bbaccc04 TP |
612 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | |
613 | SNDRV_CTL_ELEM_ACCESS_TLV_READ, | |
54ac005a TP |
614 | .name = "Playback Volume", |
615 | .info = snd_cx88_volume_info, | |
616 | .get = snd_cx88_volume_get, | |
617 | .put = snd_cx88_volume_put, | |
bbaccc04 | 618 | .tlv.p = snd_cx88_db_scale, |
b7f355d2 MCC |
619 | }; |
620 | ||
54ac005a TP |
621 | static int snd_cx88_switch_get(struct snd_kcontrol *kcontrol, |
622 | struct snd_ctl_elem_value *value) | |
623 | { | |
624 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
625 | struct cx88_core *core = chip->core; | |
626 | u32 bit = kcontrol->private_value; | |
627 | ||
628 | value->value.integer.value[0] = !(cx_read(AUD_VOL_CTL) & bit); | |
629 | return 0; | |
630 | } | |
631 | ||
632 | static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol, | |
633 | struct snd_ctl_elem_value *value) | |
634 | { | |
635 | snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol); | |
636 | struct cx88_core *core = chip->core; | |
637 | u32 bit = kcontrol->private_value; | |
638 | int ret = 0; | |
639 | u32 vol; | |
640 | ||
641 | spin_lock_irq(&chip->reg_lock); | |
642 | vol = cx_read(AUD_VOL_CTL); | |
643 | if (value->value.integer.value[0] != !(vol & bit)) { | |
644 | vol ^= bit; | |
645 | cx_write(AUD_VOL_CTL, vol); | |
646 | ret = 1; | |
647 | } | |
648 | spin_unlock_irq(&chip->reg_lock); | |
649 | return ret; | |
650 | } | |
651 | ||
652 | static struct snd_kcontrol_new snd_cx88_dac_switch = { | |
653 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
654 | .name = "Playback Switch", | |
655 | .info = snd_ctl_boolean_mono_info, | |
656 | .get = snd_cx88_switch_get, | |
657 | .put = snd_cx88_switch_put, | |
658 | .private_value = (1<<8), | |
659 | }; | |
660 | ||
661 | static struct snd_kcontrol_new snd_cx88_source_switch = { | |
662 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
663 | .name = "Capture Switch", | |
664 | .info = snd_ctl_boolean_mono_info, | |
665 | .get = snd_cx88_switch_get, | |
666 | .put = snd_cx88_switch_put, | |
667 | .private_value = (1<<6), | |
668 | }; | |
b7f355d2 MCC |
669 | |
670 | /**************************************************************************** | |
671 | Basic Flow for Sound Devices | |
672 | ****************************************************************************/ | |
673 | ||
674 | /* | |
675 | * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio | |
676 | * Only boards with eeprom and byte 1 at eeprom=1 have it | |
677 | */ | |
678 | ||
396c9b92 | 679 | static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = { |
b7f355d2 MCC |
680 | {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, |
681 | {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, | |
682 | {0, } | |
683 | }; | |
684 | MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl); | |
685 | ||
686 | /* | |
687 | * Chip-specific destructor | |
688 | */ | |
689 | ||
690 | static int snd_cx88_free(snd_cx88_card_t *chip) | |
691 | { | |
692 | ||
f000fd80 | 693 | if (chip->irq >= 0) |
b7f355d2 | 694 | free_irq(chip->irq, chip); |
b7f355d2 MCC |
695 | |
696 | cx88_core_put(chip->core,chip->pci); | |
697 | ||
698 | pci_disable_device(chip->pci); | |
699 | return 0; | |
700 | } | |
701 | ||
702 | /* | |
703 | * Component Destructor | |
704 | */ | |
f7cbb7fc | 705 | static void snd_cx88_dev_free(struct snd_card * card) |
b7f355d2 MCC |
706 | { |
707 | snd_cx88_card_t *chip = card->private_data; | |
708 | ||
709 | snd_cx88_free(chip); | |
710 | } | |
711 | ||
712 | ||
713 | /* | |
714 | * Alsa Constructor - Component probe | |
715 | */ | |
716 | ||
a5ed425c | 717 | static int devno; |
f7cbb7fc TI |
718 | static int __devinit snd_cx88_create(struct snd_card *card, |
719 | struct pci_dev *pci, | |
720 | snd_cx88_card_t **rchip) | |
b7f355d2 MCC |
721 | { |
722 | snd_cx88_card_t *chip; | |
723 | struct cx88_core *core; | |
724 | int err; | |
19453bc1 | 725 | unsigned char pci_lat; |
b7f355d2 MCC |
726 | |
727 | *rchip = NULL; | |
728 | ||
729 | err = pci_enable_device(pci); | |
730 | if (err < 0) | |
731 | return err; | |
732 | ||
733 | pci_set_master(pci); | |
734 | ||
735 | chip = (snd_cx88_card_t *) card->private_data; | |
736 | ||
737 | core = cx88_core_get(pci); | |
31dcbf99 DS |
738 | if (NULL == core) { |
739 | err = -EINVAL; | |
740 | kfree (chip); | |
741 | return err; | |
742 | } | |
b7f355d2 | 743 | |
aaa40cb8 | 744 | if (!pci_dma_supported(pci,DMA_32BIT_MASK)) { |
b7f355d2 MCC |
745 | dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name); |
746 | err = -EIO; | |
747 | cx88_core_put(core,pci); | |
748 | return err; | |
749 | } | |
750 | ||
751 | ||
752 | /* pci init */ | |
753 | chip->card = card; | |
754 | chip->pci = pci; | |
755 | chip->irq = -1; | |
756 | spin_lock_init(&chip->reg_lock); | |
757 | ||
b7f355d2 MCC |
758 | chip->core = core; |
759 | ||
760 | /* get irq */ | |
761 | err = request_irq(chip->pci->irq, cx8801_irq, | |
8076fe32 | 762 | IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip); |
b7f355d2 MCC |
763 | if (err < 0) { |
764 | dprintk(0, "%s: can't get IRQ %d\n", | |
765 | chip->core->name, chip->pci->irq); | |
766 | return err; | |
767 | } | |
768 | ||
769 | /* print pci info */ | |
19453bc1 | 770 | pci_read_config_byte(pci, PCI_LATENCY_TIMER, &pci_lat); |
b7f355d2 MCC |
771 | |
772 | dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, " | |
228aef63 | 773 | "latency: %d, mmio: 0x%llx\n", core->name, devno, |
19453bc1 TP |
774 | pci_name(pci), pci->revision, pci->irq, |
775 | pci_lat, (unsigned long long)pci_resource_start(pci,0)); | |
b7f355d2 MCC |
776 | |
777 | chip->irq = pci->irq; | |
778 | synchronize_irq(chip->irq); | |
779 | ||
780 | snd_card_set_dev(card, &pci->dev); | |
781 | ||
782 | *rchip = chip; | |
783 | ||
784 | return 0; | |
785 | } | |
786 | ||
787 | static int __devinit cx88_audio_initdev(struct pci_dev *pci, | |
788 | const struct pci_device_id *pci_id) | |
789 | { | |
f7cbb7fc | 790 | struct snd_card *card; |
b7f355d2 MCC |
791 | snd_cx88_card_t *chip; |
792 | int err; | |
793 | ||
794 | if (devno >= SNDRV_CARDS) | |
795 | return (-ENODEV); | |
796 | ||
797 | if (!enable[devno]) { | |
798 | ++devno; | |
799 | return (-ENOENT); | |
800 | } | |
801 | ||
802 | card = snd_card_new(index[devno], id[devno], THIS_MODULE, sizeof(snd_cx88_card_t)); | |
803 | if (!card) | |
804 | return (-ENOMEM); | |
805 | ||
806 | card->private_free = snd_cx88_dev_free; | |
807 | ||
808 | err = snd_cx88_create(card, pci, &chip); | |
809 | if (err < 0) | |
810 | return (err); | |
811 | ||
812 | err = snd_cx88_pcm(chip, 0, "CX88 Digital"); | |
82896f29 TP |
813 | if (err < 0) |
814 | goto error; | |
b7f355d2 | 815 | |
54ac005a TP |
816 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_volume, chip)); |
817 | if (err < 0) | |
818 | goto error; | |
819 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_dac_switch, chip)); | |
820 | if (err < 0) | |
821 | goto error; | |
822 | err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_source_switch, chip)); | |
82896f29 TP |
823 | if (err < 0) |
824 | goto error; | |
b7f355d2 MCC |
825 | |
826 | strcpy (card->driver, "CX88x"); | |
827 | sprintf(card->shortname, "Conexant CX%x", pci->device); | |
228aef63 GKH |
828 | sprintf(card->longname, "%s at %#llx", |
829 | card->shortname,(unsigned long long)pci_resource_start(pci, 0)); | |
b7f355d2 MCC |
830 | strcpy (card->mixername, "CX88"); |
831 | ||
832 | dprintk (0, "%s/%i: ALSA support for cx2388x boards\n", | |
833 | card->driver,devno); | |
834 | ||
835 | err = snd_card_register(card); | |
82896f29 TP |
836 | if (err < 0) |
837 | goto error; | |
b7f355d2 MCC |
838 | pci_set_drvdata(pci,card); |
839 | ||
840 | devno++; | |
841 | return 0; | |
82896f29 TP |
842 | |
843 | error: | |
844 | snd_card_free(card); | |
845 | return err; | |
b7f355d2 MCC |
846 | } |
847 | /* | |
848 | * ALSA destructor | |
849 | */ | |
850 | static void __devexit cx88_audio_finidev(struct pci_dev *pci) | |
851 | { | |
852 | struct cx88_audio_dev *card = pci_get_drvdata(pci); | |
853 | ||
854 | snd_card_free((void *)card); | |
855 | ||
856 | pci_set_drvdata(pci, NULL); | |
857 | ||
858 | devno--; | |
859 | } | |
860 | ||
861 | /* | |
862 | * PCI driver definition | |
863 | */ | |
864 | ||
865 | static struct pci_driver cx88_audio_pci_driver = { | |
866 | .name = "cx88_audio", | |
867 | .id_table = cx88_audio_pci_tbl, | |
868 | .probe = cx88_audio_initdev, | |
869 | .remove = cx88_audio_finidev, | |
b7f355d2 MCC |
870 | }; |
871 | ||
872 | /**************************************************************************** | |
873 | LINUX MODULE INIT | |
874 | ****************************************************************************/ | |
875 | ||
876 | /* | |
877 | * module init | |
878 | */ | |
879 | static int cx88_audio_init(void) | |
880 | { | |
881 | printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n", | |
882 | (CX88_VERSION_CODE >> 16) & 0xff, | |
883 | (CX88_VERSION_CODE >> 8) & 0xff, | |
884 | CX88_VERSION_CODE & 0xff); | |
885 | #ifdef SNAPSHOT | |
886 | printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n", | |
887 | SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100); | |
888 | #endif | |
889 | return pci_register_driver(&cx88_audio_pci_driver); | |
890 | } | |
891 | ||
892 | /* | |
893 | * module remove | |
894 | */ | |
895 | static void cx88_audio_fini(void) | |
896 | { | |
897 | ||
898 | pci_unregister_driver(&cx88_audio_pci_driver); | |
899 | } | |
900 | ||
901 | module_init(cx88_audio_init); | |
902 | module_exit(cx88_audio_fini); | |
903 | ||
904 | /* ----------------------------------------------------------- */ | |
905 | /* | |
906 | * Local variables: | |
907 | * c-basic-offset: 8 | |
908 | * End: | |
909 | */ |