blob: 85d632224f3a36c03d1f4edcadd83ddfb2f9ee5f [file] [log] [blame]
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -02001/*
2 *
3 * Support for audio capture
4 * PCI function #1 of the cx2388x.
5 *
Trent Piepho05b27232007-08-24 01:06:34 -03006 * (c) 2007 Trent Piepho <xyzzy@speakeasy.org>
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -02007 * (c) 2005,2006 Ricardo Cerqueira <v4l@cerqueira.org>
Mauro Carvalho Chehab2e7c6dc2006-04-03 07:53:40 -03008 * (c) 2005 Mauro Carvalho Chehab <mchehab@infradead.org>
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -02009 * Based on a dummy cx88 module by Gerd Knorr <kraxel@bytesex.org>
10 * Based on dummy.c by Jaroslav Kysela <perex@suse.cz>
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>
Trent Piephof6210c92007-08-24 01:06:36 -030031#include <linux/vmalloc.h>
Andrew Mortonc24228d2007-05-06 14:51:55 -070032#include <linux/dma-mapping.h>
Trent Piepho19453bc2007-08-18 22:54:49 -030033#include <linux/pci.h>
Andrew Mortonc24228d2007-05-06 14:51:55 -070034
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -020035#include <asm/delay.h>
36#include <sound/driver.h>
37#include <sound/core.h>
38#include <sound/pcm.h>
39#include <sound/pcm_params.h>
40#include <sound/control.h>
41#include <sound/initval.h>
42
43#include "cx88.h"
44#include "cx88-reg.h"
45
46#define dprintk(level,fmt, arg...) if (debug >= level) \
47 printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg)
48
49#define dprintk_core(level,fmt, arg...) if (debug >= level) \
50 printk(KERN_DEBUG "%s/1: " fmt, chip->core->name , ## arg)
51
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -020052/****************************************************************************
53 Data type declarations - Can be moded to a header file later
54 ****************************************************************************/
55
56/* These can be replaced after done */
57#define MIXER_ADDR_LAST MAX_CX88_INPUT
58
59struct cx88_audio_dev {
60 struct cx88_core *core;
61 struct cx88_dmaqueue q;
Trent Piepho05b27232007-08-24 01:06:34 -030062 u64 starttime;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -020063
64 /* pci i/o */
65 struct pci_dev *pci;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -020066
67 /* audio controls */
68 int irq;
69
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +010070 struct snd_card *card;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -020071
72 spinlock_t reg_lock;
Trent Piepho05b27232007-08-24 01:06:34 -030073 atomic_t count;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -020074
75 unsigned int dma_size;
76 unsigned int period_size;
77 unsigned int num_periods;
78
Trent Piepho05b27232007-08-24 01:06:34 -030079 struct videobuf_dmabuf dma_risc;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -020080
81 int mixer_volume[MIXER_ADDR_LAST+1][2];
82 int capture_source[MIXER_ADDR_LAST+1][2];
83
Trent Piepho05b27232007-08-24 01:06:34 -030084 struct cx88_buffer *buf;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -020085
Trent Piepho05b27232007-08-24 01:06:34 -030086 struct snd_pcm_substream *substream;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -020087};
88typedef struct cx88_audio_dev snd_cx88_card_t;
89
90
91
92/****************************************************************************
93 Module global static vars
94 ****************************************************************************/
95
96static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
97static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
98static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1};
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -020099
100module_param_array(enable, bool, NULL, 0444);
101MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled.");
102
103module_param_array(index, int, NULL, 0444);
104MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s).");
105
106
107/****************************************************************************
108 Module macros
109 ****************************************************************************/
110
111MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards");
112MODULE_AUTHOR("Ricardo Cerqueira");
Mauro Carvalho Chehab2e7c6dc2006-04-03 07:53:40 -0300113MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200114MODULE_LICENSE("GPL");
115MODULE_SUPPORTED_DEVICE("{{Conexant,23881},"
116 "{{Conexant,23882},"
117 "{{Conexant,23883}");
Mauro Carvalho Chehaba5ed4252006-01-13 14:10:19 -0200118static unsigned int debug;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200119module_param(debug,int,0644);
120MODULE_PARM_DESC(debug,"enable debug messages");
121
122/****************************************************************************
123 Module specific funtions
124 ****************************************************************************/
125
126/*
127 * BOARD Specific: Sets audio DMA
128 */
129
Mauro Carvalho Chehabbe8a82d2006-02-07 06:49:14 -0200130static int _cx88_start_audio_dma(snd_cx88_card_t *chip)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200131{
132 struct cx88_buffer *buf = chip->buf;
133 struct cx88_core *core=chip->core;
134 struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25];
135
Trent Piepho59fd8f82007-08-18 22:09:42 -0300136 /* Make sure RISC/FIFO are off before changing FIFO/RISC settings */
137 cx_clear(MO_AUD_DMACNTRL, 0x11);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200138
139 /* setup fifo + format - out channel */
Trent Piepho59fd8f82007-08-18 22:09:42 -0300140 cx88_sram_channel_setup(chip->core, audio_ch, buf->bpl, buf->risc.dma);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200141
142 /* sets bpl size */
143 cx_write(MO_AUDD_LNGTH, buf->bpl);
144
145 /* reset counter */
Trent Piepho05b27232007-08-24 01:06:34 -0300146 cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET);
147 atomic_set(&chip->count, 0);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200148
Trent Piepho05b27232007-08-24 01:06:34 -0300149 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,
Trent Piepho59fd8f82007-08-18 22:09:42 -0300151 chip->num_periods, buf->bpl * chip->num_periods);
152
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200153 /* Enables corresponding bits at AUD_INT_STAT */
Trent Piepho59fd8f82007-08-18 22:09:42 -0300154 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);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200162
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)
Trent Piepho59fd8f82007-08-18 22:09:42 -0300168 cx88_sram_channel_dump(chip->core, audio_ch);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200169
170 return 0;
171}
172
173/*
174 * BOARD Specific: Resets audio DMA
175 */
Mauro Carvalho Chehabbe8a82d2006-02-07 06:49:14 -0200176static int _cx88_stop_audio_dma(snd_cx88_card_t *chip)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200177{
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 */
Trent Piepho8ddac9e2007-08-18 06:57:55 -0300185 cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT);
Trent Piepho59fd8f82007-08-18 22:09:42 -0300186 cx_clear(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC |
187 AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200188
189 if (debug)
190 cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]);
191
192 return 0;
193}
194
Trent Piepho05b27232007-08-24 01:06:34 -0300195#define MAX_IRQ_LOOP 50
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200196
197/*
198 * BOARD Specific: IRQ dma bits
199 */
200static 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 */
216static void cx8801_aud_irq(snd_cx88_card_t *chip)
217{
218 struct cx88_core *core = chip->core;
219 u32 status, mask;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200220
221 status = cx_read(MO_AUD_INTSTAT);
222 mask = cx_read(MO_AUD_INTMSK);
Trent Piepho05b27232007-08-24 01:06:34 -0300223 if (0 == (status & mask))
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200224 return;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200225 cx_write(MO_AUD_INTSTAT, status);
226 if (debug > 1 || (status & mask & ~0xff))
227 cx88_print_irqbits(core->name, "irq aud",
Mauro Carvalho Chehab66623a02007-03-29 08:47:04 -0300228 cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs),
229 status, mask);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200230 /* risc op code error */
Trent Piepho59fd8f82007-08-18 22:09:42 -0300231 if (status & AUD_INT_OPC_ERR) {
Trent Piepho05b27232007-08-24 01:06:34 -0300232 printk(KERN_WARNING "%s/1: Audio risc op code error\n",core->name);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200233 cx_clear(MO_AUD_DMACNTRL, 0x11);
234 cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]);
235 }
Trent Piepho05b27232007-08-24 01:06:34 -0300236 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 }
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200241 /* risc1 downstream */
Trent Piepho59fd8f82007-08-18 22:09:42 -0300242 if (status & AUD_INT_DN_RISCI1) {
Trent Piepho05b27232007-08-24 01:06:34 -0300243 atomic_set(&chip->count, cx_read(MO_AUDD_GPCNT));
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200244 snd_pcm_period_elapsed(chip->substream);
245 }
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200246 /* FIXME: Any other status should deserve a special handling? */
247}
248
249/*
250 * BOARD Specific: Handles IRQ calls
251 */
David Howells7d12e782006-10-05 14:55:46 +0100252static irqreturn_t cx8801_irq(int irq, void *dev_id)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200253{
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++) {
Trent Piepho8ddac9e2007-08-18 06:57:55 -0300260 status = cx_read(MO_PCI_INTSTAT) &
261 (core->pci_irqmask | PCI_INT_AUDINT);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200262 if (0 == status)
263 goto out;
Trent Piepho05b27232007-08-24 01:06:34 -0300264 dprintk(3, "cx8801_irq loop %d/%d, status %x\n",
265 loop, MAX_IRQ_LOOP, status);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200266 handled = 1;
267 cx_write(MO_PCI_INTSTAT, status);
268
Trent Piepho5ba862b2007-08-18 07:02:26 -0300269 if (status & core->pci_irqmask)
270 cx88_core_irq(core, status);
Trent Piepho05b27232007-08-24 01:06:34 -0300271 if (status & PCI_INT_AUDINT)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200272 cx8801_aud_irq(chip);
Trent Piepho05b27232007-08-24 01:06:34 -0300273 }
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200274
275 if (MAX_IRQ_LOOP == loop) {
Trent Piepho05b27232007-08-24 01:06:34 -0300276 printk(KERN_ERR
277 "%s/1: IRQ loop detected, disabling interrupts\n",
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200278 core->name);
Trent Piepho8ddac9e2007-08-18 06:57:55 -0300279 cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200280 }
281
282 out:
283 return IRQ_RETVAL(handled);
284}
285
286
287static int dsp_buffer_free(snd_cx88_card_t *chip)
288{
289 BUG_ON(!chip->dma_size);
290
291 dprintk(2,"Freeing buffer\n");
Mauro Carvalho Chehabc7b0ac02006-03-10 12:29:15 -0300292 videobuf_pci_dma_unmap(chip->pci, &chip->dma_risc);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200293 videobuf_dma_free(&chip->dma_risc);
294 btcx_riscmem_free(chip->pci,&chip->buf->risc);
295 kfree(chip->buf);
296
297 chip->dma_size = 0;
298
Trent Piepho05b27232007-08-24 01:06:34 -0300299 return 0;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200300}
301
302/****************************************************************************
303 ALSA PCM Interface
304 ****************************************************************************/
305
306/*
307 * Digital hardware definition
308 */
Trent Piepho05b27232007-08-24 01:06:34 -0300309#define DEFAULT_FIFO_SIZE 4096
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100310static struct snd_pcm_hardware snd_cx88_digital_hw = {
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200311 .info = SNDRV_PCM_INFO_MMAP |
312 SNDRV_PCM_INFO_INTERLEAVED |
313 SNDRV_PCM_INFO_BLOCK_TRANSFER |
314 SNDRV_PCM_INFO_MMAP_VALID,
315 .formats = SNDRV_PCM_FMTBIT_S16_LE,
316
317 .rates = SNDRV_PCM_RATE_48000,
318 .rate_min = 48000,
319 .rate_max = 48000,
Trent Piepho5a5b3b52007-08-18 21:01:40 -0300320 .channels_min = 2,
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200321 .channels_max = 2,
Trent Piepho05b27232007-08-24 01:06:34 -0300322 /* Analog audio output will be full of clicks and pops if there
323 are not exactly four lines in the SRAM FIFO buffer. */
324 .period_bytes_min = DEFAULT_FIFO_SIZE/4,
325 .period_bytes_max = DEFAULT_FIFO_SIZE/4,
326 .periods_min = 1,
327 .periods_max = 1024,
328 .buffer_bytes_max = (1024*1024),
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200329};
330
331/*
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200332 * audio pcm capture open callback
333 */
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100334static int snd_cx88_pcm_open(struct snd_pcm_substream *substream)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200335{
336 snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100337 struct snd_pcm_runtime *runtime = substream->runtime;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200338 int err;
339
Trent Piepho05b27232007-08-24 01:06:34 -0300340 err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200341 if (err < 0)
342 goto _error;
343
344 chip->substream = substream;
345
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200346 runtime->hw = snd_cx88_digital_hw;
347
Trent Piepho05b27232007-08-24 01:06:34 -0300348 if (cx88_sram_channels[SRAM_CH25].fifo_size != DEFAULT_FIFO_SIZE) {
349 unsigned int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4;
350 bpl &= ~7; /* must be multiple of 8 */
351 runtime->hw.period_bytes_min = bpl;
352 runtime->hw.period_bytes_max = bpl;
353 }
354
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200355 return 0;
356_error:
357 dprintk(1,"Error opening PCM!\n");
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200358 return err;
359}
360
361/*
362 * audio close callback
363 */
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100364static int snd_cx88_close(struct snd_pcm_substream *substream)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200365{
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200366 return 0;
367}
368
369/*
370 * hw_params callback
371 */
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100372static int snd_cx88_hw_params(struct snd_pcm_substream * substream,
373 struct snd_pcm_hw_params * hw_params)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200374{
375 snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
376 struct cx88_buffer *buf;
Trent Piepho05b27232007-08-24 01:06:34 -0300377 int ret;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200378
379 if (substream->runtime->dma_area) {
380 dsp_buffer_free(chip);
381 substream->runtime->dma_area = NULL;
382 }
383
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200384 chip->period_size = params_period_bytes(hw_params);
385 chip->num_periods = params_periods(hw_params);
386 chip->dma_size = chip->period_size * params_periods(hw_params);
387
388 BUG_ON(!chip->dma_size);
Trent Piepho05b27232007-08-24 01:06:34 -0300389 BUG_ON(chip->num_periods & (chip->num_periods-1));
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200390
Trent Piepho05b27232007-08-24 01:06:34 -0300391 buf = kzalloc(sizeof(*buf), GFP_KERNEL);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200392 if (NULL == buf)
393 return -ENOMEM;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200394
395 buf->vb.memory = V4L2_MEMORY_MMAP;
Trent Piepho05b27232007-08-24 01:06:34 -0300396 buf->vb.field = V4L2_FIELD_NONE;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200397 buf->vb.width = chip->period_size;
Trent Piepho05b27232007-08-24 01:06:34 -0300398 buf->bpl = chip->period_size;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200399 buf->vb.height = chip->num_periods;
400 buf->vb.size = chip->dma_size;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200401
402 videobuf_dma_init(&buf->vb.dma);
Trent Piepho05b27232007-08-24 01:06:34 -0300403 ret = videobuf_dma_init_kernel(&buf->vb.dma, PCI_DMA_FROMDEVICE,
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200404 (PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT));
Trent Piepho05b27232007-08-24 01:06:34 -0300405 if (ret < 0)
406 goto error;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200407
Trent Piepho05b27232007-08-24 01:06:34 -0300408 ret = videobuf_pci_dma_map(chip->pci,&buf->vb.dma);
409 if (ret < 0)
410 goto error;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200411
Trent Piepho05b27232007-08-24 01:06:34 -0300412 ret = cx88_risc_databuffer(chip->pci, &buf->risc, buf->vb.dma.sglist,
413 buf->vb.width, buf->vb.height, 1);
414 if (ret < 0)
415 goto error;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200416
Trent Piepho05b27232007-08-24 01:06:34 -0300417 /* Loop back to start of program */
418 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200419 buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
420
421 buf->vb.state = STATE_PREPARED;
422
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200423 chip->buf = buf;
424 chip->dma_risc = buf->vb.dma;
425
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200426 substream->runtime->dma_area = chip->dma_risc.vmalloc;
Trent Piephof6210c92007-08-24 01:06:36 -0300427 substream->runtime->dma_bytes = chip->dma_size;
428 substream->runtime->dma_addr = 0;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200429 return 0;
Trent Piepho05b27232007-08-24 01:06:34 -0300430
431error:
432 kfree(buf);
433 return ret;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200434}
435
436/*
437 * hw free callback
438 */
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100439static int snd_cx88_hw_free(struct snd_pcm_substream * substream)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200440{
441
442 snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
443
444 if (substream->runtime->dma_area) {
445 dsp_buffer_free(chip);
446 substream->runtime->dma_area = NULL;
447 }
448
449 return 0;
450}
451
452/*
453 * prepare callback
454 */
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100455static int snd_cx88_prepare(struct snd_pcm_substream *substream)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200456{
457 return 0;
458}
459
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200460/*
461 * trigger callback
462 */
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100463static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200464{
465 snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
466 int err;
467
Trent Piepho05b27232007-08-24 01:06:34 -0300468 /* Local interrupts are already disabled by ALSA */
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200469 spin_lock(&chip->reg_lock);
470
471 switch (cmd) {
472 case SNDRV_PCM_TRIGGER_START:
473 err=_cx88_start_audio_dma(chip);
474 break;
475 case SNDRV_PCM_TRIGGER_STOP:
476 err=_cx88_stop_audio_dma(chip);
477 break;
478 default:
479 err=-EINVAL;
480 break;
481 }
482
483 spin_unlock(&chip->reg_lock);
484
485 return err;
486}
487
488/*
489 * pointer callback
490 */
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100491static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200492{
493 snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100494 struct snd_pcm_runtime *runtime = substream->runtime;
Trent Piepho05b27232007-08-24 01:06:34 -0300495 u16 count;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200496
Trent Piepho05b27232007-08-24 01:06:34 -0300497 count = atomic_read(&chip->count);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200498
Trent Piepho05b27232007-08-24 01:06:34 -0300499// dprintk(2, "%s - count %d (+%u), period %d, frame %lu\n", __FUNCTION__,
500// count, new, count & (runtime->periods-1),
501// runtime->period_size * (count & (runtime->periods-1)));
502 return runtime->period_size * (count & (runtime->periods-1));
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200503}
504
505/*
Trent Piephof6210c92007-08-24 01:06:36 -0300506 * page callback (needed for mmap)
507 */
508static struct page *snd_cx88_page(struct snd_pcm_substream *substream,
509 unsigned long offset)
510{
511 void *pageptr = substream->runtime->dma_area + offset;
512 return vmalloc_to_page(pageptr);
513}
514
515/*
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200516 * operators
517 */
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100518static struct snd_pcm_ops snd_cx88_pcm_ops = {
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200519 .open = snd_cx88_pcm_open,
520 .close = snd_cx88_close,
521 .ioctl = snd_pcm_lib_ioctl,
522 .hw_params = snd_cx88_hw_params,
523 .hw_free = snd_cx88_hw_free,
524 .prepare = snd_cx88_prepare,
525 .trigger = snd_cx88_card_trigger,
526 .pointer = snd_cx88_pointer,
Trent Piephof6210c92007-08-24 01:06:36 -0300527 .page = snd_cx88_page,
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200528};
529
530/*
531 * create a PCM device
532 */
533static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name)
534{
535 int err;
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100536 struct snd_pcm *pcm;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200537
538 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
539 if (err < 0)
540 return err;
541 pcm->private_data = chip;
542 strcpy(pcm->name, name);
543 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx88_pcm_ops);
544
545 return 0;
546}
547
548/****************************************************************************
549 CONTROL INTERFACE
550 ****************************************************************************/
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100551static int snd_cx88_capture_volume_info(struct snd_kcontrol *kcontrol,
552 struct snd_ctl_elem_info *info)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200553{
554 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
555 info->count = 1;
556 info->value.integer.min = 0;
557 info->value.integer.max = 0x3f;
558
559 return 0;
560}
561
562/* OK - TODO: test it */
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100563static int snd_cx88_capture_volume_get(struct snd_kcontrol *kcontrol,
564 struct snd_ctl_elem_value *value)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200565{
566 snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
567 struct cx88_core *core=chip->core;
568
569 value->value.integer.value[0] = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f);
570
571 return 0;
572}
573
574/* OK - TODO: test it */
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100575static int snd_cx88_capture_volume_put(struct snd_kcontrol *kcontrol,
576 struct snd_ctl_elem_value *value)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200577{
578 snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
579 struct cx88_core *core=chip->core;
580 int v;
581 u32 old_control;
582
Trent Piepho05b27232007-08-24 01:06:34 -0300583 /* Do we really know this will always be called with IRQs on? */
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200584 spin_lock_irq(&chip->reg_lock);
Trent Piepho05b27232007-08-24 01:06:34 -0300585
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200586 old_control = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f);
587 v = 0x3f - (value->value.integer.value[0] & 0x3f);
588 cx_andor(AUD_VOL_CTL, 0x3f, v);
Trent Piepho05b27232007-08-24 01:06:34 -0300589
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200590 spin_unlock_irq(&chip->reg_lock);
591
592 return v != old_control;
593}
594
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100595static struct snd_kcontrol_new snd_cx88_capture_volume = {
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200596 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
597 .name = "Capture Volume",
598 .info = snd_cx88_capture_volume_info,
599 .get = snd_cx88_capture_volume_get,
600 .put = snd_cx88_capture_volume_put,
601};
602
603
604/****************************************************************************
605 Basic Flow for Sound Devices
606 ****************************************************************************/
607
608/*
609 * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio
610 * Only boards with eeprom and byte 1 at eeprom=1 have it
611 */
612
Henrik Kretzschmar396c9b92006-04-24 15:59:04 +0200613static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = {
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200614 {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
615 {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
616 {0, }
617};
618MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl);
619
620/*
621 * Chip-specific destructor
622 */
623
624static int snd_cx88_free(snd_cx88_card_t *chip)
625{
626
627 if (chip->irq >= 0){
628 synchronize_irq(chip->irq);
629 free_irq(chip->irq, chip);
630 }
631
632 cx88_core_put(chip->core,chip->pci);
633
634 pci_disable_device(chip->pci);
635 return 0;
636}
637
638/*
639 * Component Destructor
640 */
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100641static void snd_cx88_dev_free(struct snd_card * card)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200642{
643 snd_cx88_card_t *chip = card->private_data;
644
645 snd_cx88_free(chip);
646}
647
648
649/*
650 * Alsa Constructor - Component probe
651 */
652
Mauro Carvalho Chehaba5ed4252006-01-13 14:10:19 -0200653static int devno;
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100654static int __devinit snd_cx88_create(struct snd_card *card,
655 struct pci_dev *pci,
656 snd_cx88_card_t **rchip)
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200657{
658 snd_cx88_card_t *chip;
659 struct cx88_core *core;
660 int err;
Trent Piepho19453bc2007-08-18 22:54:49 -0300661 unsigned char pci_lat;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200662
663 *rchip = NULL;
664
665 err = pci_enable_device(pci);
666 if (err < 0)
667 return err;
668
669 pci_set_master(pci);
670
671 chip = (snd_cx88_card_t *) card->private_data;
672
673 core = cx88_core_get(pci);
Duncan Sands31dcbf92006-03-14 12:12:39 -0300674 if (NULL == core) {
675 err = -EINVAL;
676 kfree (chip);
677 return err;
678 }
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200679
Mauro Carvalho Chehabaaa40cb2007-03-30 10:58:01 -0300680 if (!pci_dma_supported(pci,DMA_32BIT_MASK)) {
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200681 dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
682 err = -EIO;
683 cx88_core_put(core,pci);
684 return err;
685 }
686
687
688 /* pci init */
689 chip->card = card;
690 chip->pci = pci;
691 chip->irq = -1;
692 spin_lock_init(&chip->reg_lock);
693
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200694 chip->core = core;
695
696 /* get irq */
697 err = request_irq(chip->pci->irq, cx8801_irq,
Thomas Gleixner8076fe32006-07-01 19:29:37 -0700698 IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200699 if (err < 0) {
700 dprintk(0, "%s: can't get IRQ %d\n",
701 chip->core->name, chip->pci->irq);
702 return err;
703 }
704
705 /* print pci info */
Trent Piepho19453bc2007-08-18 22:54:49 -0300706 pci_read_config_byte(pci, PCI_LATENCY_TIMER, &pci_lat);
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200707
708 dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, "
Greg Kroah-Hartman228aef62006-06-12 15:16:52 -0700709 "latency: %d, mmio: 0x%llx\n", core->name, devno,
Trent Piepho19453bc2007-08-18 22:54:49 -0300710 pci_name(pci), pci->revision, pci->irq,
711 pci_lat, (unsigned long long)pci_resource_start(pci,0));
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200712
713 chip->irq = pci->irq;
714 synchronize_irq(chip->irq);
715
716 snd_card_set_dev(card, &pci->dev);
717
718 *rchip = chip;
719
720 return 0;
721}
722
723static int __devinit cx88_audio_initdev(struct pci_dev *pci,
724 const struct pci_device_id *pci_id)
725{
Takashi Iwaif7cbb7f2006-01-13 18:48:06 +0100726 struct snd_card *card;
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200727 snd_cx88_card_t *chip;
728 int err;
729
730 if (devno >= SNDRV_CARDS)
731 return (-ENODEV);
732
733 if (!enable[devno]) {
734 ++devno;
735 return (-ENOENT);
736 }
737
738 card = snd_card_new(index[devno], id[devno], THIS_MODULE, sizeof(snd_cx88_card_t));
739 if (!card)
740 return (-ENOMEM);
741
742 card->private_free = snd_cx88_dev_free;
743
744 err = snd_cx88_create(card, pci, &chip);
745 if (err < 0)
746 return (err);
747
748 err = snd_cx88_pcm(chip, 0, "CX88 Digital");
749
750 if (err < 0) {
751 snd_card_free(card);
752 return (err);
753 }
754
755 err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_capture_volume, chip));
756 if (err < 0) {
757 snd_card_free(card);
758 return (err);
759 }
760
761 strcpy (card->driver, "CX88x");
762 sprintf(card->shortname, "Conexant CX%x", pci->device);
Greg Kroah-Hartman228aef62006-06-12 15:16:52 -0700763 sprintf(card->longname, "%s at %#llx",
764 card->shortname,(unsigned long long)pci_resource_start(pci, 0));
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200765 strcpy (card->mixername, "CX88");
766
767 dprintk (0, "%s/%i: ALSA support for cx2388x boards\n",
768 card->driver,devno);
769
770 err = snd_card_register(card);
771 if (err < 0) {
772 snd_card_free(card);
773 return (err);
774 }
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200775 pci_set_drvdata(pci,card);
776
777 devno++;
778 return 0;
779}
780/*
781 * ALSA destructor
782 */
783static void __devexit cx88_audio_finidev(struct pci_dev *pci)
784{
785 struct cx88_audio_dev *card = pci_get_drvdata(pci);
786
787 snd_card_free((void *)card);
788
789 pci_set_drvdata(pci, NULL);
790
791 devno--;
792}
793
794/*
795 * PCI driver definition
796 */
797
798static struct pci_driver cx88_audio_pci_driver = {
799 .name = "cx88_audio",
800 .id_table = cx88_audio_pci_tbl,
801 .probe = cx88_audio_initdev,
802 .remove = cx88_audio_finidev,
Mauro Carvalho Chehabb7f355d2006-01-09 15:32:44 -0200803};
804
805/****************************************************************************
806 LINUX MODULE INIT
807 ****************************************************************************/
808
809/*
810 * module init
811 */
812static int cx88_audio_init(void)
813{
814 printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n",
815 (CX88_VERSION_CODE >> 16) & 0xff,
816 (CX88_VERSION_CODE >> 8) & 0xff,
817 CX88_VERSION_CODE & 0xff);
818#ifdef SNAPSHOT
819 printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
820 SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
821#endif
822 return pci_register_driver(&cx88_audio_pci_driver);
823}
824
825/*
826 * module remove
827 */
828static void cx88_audio_fini(void)
829{
830
831 pci_unregister_driver(&cx88_audio_pci_driver);
832}
833
834module_init(cx88_audio_init);
835module_exit(cx88_audio_fini);
836
837/* ----------------------------------------------------------- */
838/*
839 * Local variables:
840 * c-basic-offset: 8
841 * End:
842 */