[ALSA] Fix snd_xxx_t typedefs
[linux-2.6.git] / drivers / media / video / cx88 / cx88-alsa.c
1 /*
2  *
3  *  Support for audio capture
4  *  PCI function #1 of the cx2388x.
5  *
6  *    (c) 2005,2006 Ricardo Cerqueira <v4l@cerqueira.org>
7  *    (c) 2005 Mauro Carvalho Chehab <mchehab@brturbo.com.br>
8  *    Based on a dummy cx88 module by Gerd Knorr <kraxel@bytesex.org>
9  *    Based on dummy.c by Jaroslav Kysela <perex@suse.cz>
10  *
11  *  This program is free software; you can redistribute it and/or modify
12  *  it under the terms of the GNU General Public License as published by
13  *  the Free Software Foundation; either version 2 of the License, or
14  *  (at your option) any later version.
15  *
16  *  This program is distributed in the hope that it will be useful,
17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  *  GNU General Public License for more details.
20  *
21  *  You should have received a copy of the GNU General Public License
22  *  along with this program; if not, write to the Free Software
23  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24  */
25
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/device.h>
29 #include <linux/interrupt.h>
30 #include <asm/delay.h>
31 #include <sound/driver.h>
32 #include <sound/core.h>
33 #include <sound/pcm.h>
34 #include <sound/pcm_params.h>
35 #include <sound/control.h>
36 #include <sound/initval.h>
37
38 #include "cx88.h"
39 #include "cx88-reg.h"
40
41 #define dprintk(level,fmt, arg...)      if (debug >= level) \
42         printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg)
43
44 #define dprintk_core(level,fmt, arg...) if (debug >= level) \
45         printk(KERN_DEBUG "%s/1: " fmt, chip->core->name , ## arg)
46
47
48 /****************************************************************************
49         Data type declarations - Can be moded to a header file later
50  ****************************************************************************/
51
52 /* These can be replaced after done */
53 #define MIXER_ADDR_LAST MAX_CX88_INPUT
54
55 struct cx88_audio_dev {
56         struct cx88_core           *core;
57         struct cx88_dmaqueue       q;
58
59         /* pci i/o */
60         struct pci_dev             *pci;
61         unsigned char              pci_rev,pci_lat;
62
63         /* audio controls */
64         int                        irq;
65
66         struct snd_card            *card;
67
68         spinlock_t                 reg_lock;
69
70         unsigned int               dma_size;
71         unsigned int               period_size;
72         unsigned int               num_periods;
73
74         struct videobuf_dmabuf dma_risc;
75
76         int                        mixer_volume[MIXER_ADDR_LAST+1][2];
77         int                        capture_source[MIXER_ADDR_LAST+1][2];
78
79         long int read_count;
80         long int read_offset;
81
82         struct cx88_buffer   *buf;
83
84         long opened;
85         struct snd_pcm_substream *substream;
86
87 };
88 typedef struct cx88_audio_dev snd_cx88_card_t;
89
90
91
92 /****************************************************************************
93                         Module global static vars
94  ****************************************************************************/
95
96 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
97 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
98 static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1};
99 static struct snd_card *snd_cx88_cards[SNDRV_CARDS];
100
101 module_param_array(enable, bool, NULL, 0444);
102 MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled.");
103
104 module_param_array(index, int, NULL, 0444);
105 MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s).");
106
107
108 /****************************************************************************
109                                 Module macros
110  ****************************************************************************/
111
112 MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards");
113 MODULE_AUTHOR("Ricardo Cerqueira");
114 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@brturbo.com.br>");
115 MODULE_LICENSE("GPL");
116 MODULE_SUPPORTED_DEVICE("{{Conexant,23881},"
117                         "{{Conexant,23882},"
118                         "{{Conexant,23883}");
119 static unsigned int debug;
120 module_param(debug,int,0644);
121 MODULE_PARM_DESC(debug,"enable debug messages");
122
123 /****************************************************************************
124                         Module specific funtions
125  ****************************************************************************/
126
127 /*
128  * BOARD Specific: Sets audio DMA
129  */
130
131 static int _cx88_start_audio_dma(snd_cx88_card_t *chip)
132 {
133         struct cx88_buffer   *buf = chip->buf;
134         struct cx88_core *core=chip->core;
135         struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25];
136
137
138         dprintk(1, "Starting audio DMA for %i bytes/line and %i (%i) lines at address %08x\n",buf->bpl, chip->num_periods, audio_ch->fifo_size / buf->bpl, audio_ch->fifo_start);
139
140         /* setup fifo + format - out channel */
141         cx88_sram_channel_setup(chip->core, &cx88_sram_channels[SRAM_CH25],
142                                 buf->bpl, buf->risc.dma);
143
144         /* sets bpl size */
145         cx_write(MO_AUDD_LNGTH, buf->bpl);
146
147         /* reset counter */
148         cx_write(MO_AUDD_GPCNTRL,GP_COUNT_CONTROL_RESET);
149
150         dprintk(1,"Enabling IRQ, setting mask from 0x%x to 0x%x\n",chip->core->pci_irqmask,(chip->core->pci_irqmask | 0x02));
151         /* enable irqs */
152         cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | 0x02);
153
154
155         /* Enables corresponding bits at AUD_INT_STAT */
156         cx_write(MO_AUD_INTMSK,
157                         (1<<16)|
158                         (1<<12)|
159                         (1<<4)|
160                         (1<<0)
161                         );
162
163         /* start dma */
164         cx_set(MO_DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */
165         cx_set(MO_AUD_DMACNTRL, 0x11); /* audio downstream FIFO and RISC enable */
166
167         if (debug)
168                 cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]);
169
170         return 0;
171 }
172
173 /*
174  * BOARD Specific: Resets audio DMA
175  */
176 static int _cx88_stop_audio_dma(snd_cx88_card_t *chip)
177 {
178         struct cx88_core *core=chip->core;
179         dprintk(1, "Stopping audio DMA\n");
180
181         /* stop dma */
182         cx_clear(MO_AUD_DMACNTRL, 0x11);
183
184         /* disable irqs */
185         cx_clear(MO_PCI_INTMSK, 0x02);
186         cx_clear(MO_AUD_INTMSK,
187                         (1<<16)|
188                         (1<<12)|
189                         (1<<4)|
190                         (1<<0)
191                         );
192
193         if (debug)
194                 cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]);
195
196         return 0;
197 }
198
199 #define MAX_IRQ_LOOP 10
200
201 /*
202  * BOARD Specific: IRQ dma bits
203  */
204 static char *cx88_aud_irqs[32] = {
205         "dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */
206         NULL,                                     /* reserved */
207         "dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */
208         NULL,                                     /* reserved */
209         "dnf_of", "upf_uf", "rds_dnf_uf",         /* 8-10 */
210         NULL,                                     /* reserved */
211         "dn_sync", "up_sync", "rds_dn_sync",      /* 12-14 */
212         NULL,                                     /* reserved */
213         "opc_err", "par_err", "rip_err",          /* 16-18 */
214         "pci_abort", "ber_irq", "mchg_irq"        /* 19-21 */
215 };
216
217 /*
218  * BOARD Specific: Threats IRQ audio specific calls
219  */
220 static void cx8801_aud_irq(snd_cx88_card_t *chip)
221 {
222         struct cx88_core *core = chip->core;
223         u32 status, mask;
224         u32 count;
225
226         status = cx_read(MO_AUD_INTSTAT);
227         mask   = cx_read(MO_AUD_INTMSK);
228         if (0 == (status & mask)) {
229                 spin_unlock(&chip->reg_lock);
230                 return;
231         }
232         cx_write(MO_AUD_INTSTAT, status);
233         if (debug > 1  ||  (status & mask & ~0xff))
234                 cx88_print_irqbits(core->name, "irq aud",
235                                    cx88_aud_irqs, status, mask);
236         /* risc op code error */
237         if (status & (1 << 16)) {
238                 printk(KERN_WARNING "%s/0: audio risc op code error\n",core->name);
239                 cx_clear(MO_AUD_DMACNTRL, 0x11);
240                 cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]);
241         }
242
243         /* risc1 downstream */
244         if (status & 0x01) {
245                 spin_lock(&chip->reg_lock);
246                 count = cx_read(MO_AUDD_GPCNT);
247                 spin_unlock(&chip->reg_lock);
248                 if (chip->read_count == 0)
249                         chip->read_count += chip->dma_size;
250         }
251
252         if  (chip->read_count >= chip->period_size) {
253                 dprintk(2, "Elapsing period\n");
254                 snd_pcm_period_elapsed(chip->substream);
255         }
256
257         dprintk(3,"Leaving audio IRQ handler...\n");
258
259         /* FIXME: Any other status should deserve a special handling? */
260 }
261
262 /*
263  * BOARD Specific: Handles IRQ calls
264  */
265 static irqreturn_t cx8801_irq(int irq, void *dev_id, struct pt_regs *regs)
266 {
267         snd_cx88_card_t *chip = dev_id;
268         struct cx88_core *core = chip->core;
269         u32 status;
270         int loop, handled = 0;
271
272         for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
273                 status = cx_read(MO_PCI_INTSTAT) & (core->pci_irqmask | 0x02);
274                 if (0 == status)
275                         goto out;
276                 dprintk( 3, "cx8801_irq\n" );
277                 dprintk( 3, "    loop: %d/%d\n", loop, MAX_IRQ_LOOP );
278                 dprintk( 3, "    status: %d\n", status );
279                 handled = 1;
280                 cx_write(MO_PCI_INTSTAT, status);
281
282                 if (status & 0x02)
283                 {
284                         dprintk( 2, "    ALSA IRQ handling\n" );
285                         cx8801_aud_irq(chip);
286                 }
287         };
288
289         if (MAX_IRQ_LOOP == loop) {
290                 dprintk( 0, "clearing mask\n" );
291                 dprintk(1,"%s/0: irq loop -- clearing mask\n",
292                        core->name);
293                 cx_clear(MO_PCI_INTMSK,0x02);
294         }
295
296  out:
297         return IRQ_RETVAL(handled);
298 }
299
300
301 static int dsp_buffer_free(snd_cx88_card_t *chip)
302 {
303         BUG_ON(!chip->dma_size);
304
305         dprintk(2,"Freeing buffer\n");
306         videobuf_dma_pci_unmap(chip->pci, &chip->dma_risc);
307         videobuf_dma_free(&chip->dma_risc);
308         btcx_riscmem_free(chip->pci,&chip->buf->risc);
309         kfree(chip->buf);
310
311         chip->dma_size = 0;
312
313        return 0;
314 }
315
316 /****************************************************************************
317                                 ALSA PCM Interface
318  ****************************************************************************/
319
320 /*
321  * Digital hardware definition
322  */
323 static struct snd_pcm_hardware snd_cx88_digital_hw = {
324         .info = SNDRV_PCM_INFO_MMAP |
325                 SNDRV_PCM_INFO_INTERLEAVED |
326                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
327                 SNDRV_PCM_INFO_MMAP_VALID,
328         .formats = SNDRV_PCM_FMTBIT_S16_LE,
329
330         .rates =                SNDRV_PCM_RATE_48000,
331         .rate_min =             48000,
332         .rate_max =             48000,
333         .channels_min = 1,
334         .channels_max = 2,
335         .buffer_bytes_max = (2*2048),
336         .period_bytes_min = 2048,
337         .period_bytes_max = 2048,
338         .periods_min = 2,
339         .periods_max = 2,
340 };
341
342 /*
343  * audio pcm capture runtime free
344  */
345 static void snd_card_cx88_runtime_free(struct snd_pcm_runtime *runtime)
346 {
347 }
348 /*
349  * audio pcm capture open callback
350  */
351 static int snd_cx88_pcm_open(struct snd_pcm_substream *substream)
352 {
353         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
354         struct snd_pcm_runtime *runtime = substream->runtime;
355         int err;
356
357         if (test_and_set_bit(0, &chip->opened))
358                 return -EBUSY;
359
360         err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
361         if (err < 0)
362                 goto _error;
363
364         chip->substream = substream;
365
366         chip->read_count = 0;
367         chip->read_offset = 0;
368
369         runtime->private_free = snd_card_cx88_runtime_free;
370         runtime->hw = snd_cx88_digital_hw;
371
372         return 0;
373 _error:
374         dprintk(1,"Error opening PCM!\n");
375         clear_bit(0, &chip->opened);
376         smp_mb__after_clear_bit();
377         return err;
378 }
379
380 /*
381  * audio close callback
382  */
383 static int snd_cx88_close(struct snd_pcm_substream *substream)
384 {
385         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
386
387         clear_bit(0, &chip->opened);
388         smp_mb__after_clear_bit();
389
390         return 0;
391 }
392
393 /*
394  * hw_params callback
395  */
396 static int snd_cx88_hw_params(struct snd_pcm_substream * substream,
397                               struct snd_pcm_hw_params * hw_params)
398 {
399         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
400         struct cx88_buffer *buf;
401
402         if (substream->runtime->dma_area) {
403                 dsp_buffer_free(chip);
404                 substream->runtime->dma_area = NULL;
405         }
406
407
408         chip->period_size = params_period_bytes(hw_params);
409         chip->num_periods = params_periods(hw_params);
410         chip->dma_size = chip->period_size * params_periods(hw_params);
411
412         BUG_ON(!chip->dma_size);
413
414         dprintk(1,"Setting buffer\n");
415
416         buf = kmalloc(sizeof(*buf),GFP_KERNEL);
417         if (NULL == buf)
418                 return -ENOMEM;
419         memset(buf,0,sizeof(*buf));
420
421
422         buf->vb.memory = V4L2_MEMORY_MMAP;
423         buf->vb.width  = chip->period_size;
424         buf->vb.height = chip->num_periods;
425         buf->vb.size   = chip->dma_size;
426         buf->vb.field  = V4L2_FIELD_NONE;
427
428         videobuf_dma_init(&buf->vb.dma);
429         videobuf_dma_init_kernel(&buf->vb.dma,PCI_DMA_FROMDEVICE,
430                         (PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT));
431
432         videobuf_dma_pci_map(chip->pci,&buf->vb.dma);
433
434
435         cx88_risc_databuffer(chip->pci, &buf->risc,
436                         buf->vb.dma.sglist,
437                         buf->vb.width, buf->vb.height);
438
439         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
440         buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
441
442         buf->vb.state = STATE_PREPARED;
443
444         buf->bpl = chip->period_size;
445         chip->buf = buf;
446         chip->dma_risc = buf->vb.dma;
447
448         dprintk(1,"Buffer ready at %u\n",chip->dma_risc.nr_pages);
449         substream->runtime->dma_area = chip->dma_risc.vmalloc;
450         return 0;
451 }
452
453 /*
454  * hw free callback
455  */
456 static int snd_cx88_hw_free(struct snd_pcm_substream * substream)
457 {
458
459         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
460
461         if (substream->runtime->dma_area) {
462                 dsp_buffer_free(chip);
463                 substream->runtime->dma_area = NULL;
464         }
465
466         return 0;
467 }
468
469 /*
470  * prepare callback
471  */
472 static int snd_cx88_prepare(struct snd_pcm_substream *substream)
473 {
474         return 0;
475 }
476
477
478 /*
479  * trigger callback
480  */
481 static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd)
482 {
483         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
484         int err;
485
486         spin_lock(&chip->reg_lock);
487
488         switch (cmd) {
489         case SNDRV_PCM_TRIGGER_START:
490                 err=_cx88_start_audio_dma(chip);
491                 break;
492         case SNDRV_PCM_TRIGGER_STOP:
493                 err=_cx88_stop_audio_dma(chip);
494                 break;
495         default:
496                 err=-EINVAL;
497                 break;
498         }
499
500         spin_unlock(&chip->reg_lock);
501
502         return err;
503 }
504
505 /*
506  * pointer callback
507  */
508 static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream)
509 {
510         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
511         struct snd_pcm_runtime *runtime = substream->runtime;
512
513         if (chip->read_count) {
514                 chip->read_count -= snd_pcm_lib_period_bytes(substream);
515                 chip->read_offset += snd_pcm_lib_period_bytes(substream);
516                 if (chip->read_offset == chip->dma_size)
517                         chip->read_offset = 0;
518         }
519
520         dprintk(2, "Pointer time, will return %li, read %li\n",chip->read_offset,chip->read_count);
521         return bytes_to_frames(runtime, chip->read_offset);
522
523 }
524
525 /*
526  * operators
527  */
528 static struct snd_pcm_ops snd_cx88_pcm_ops = {
529         .open = snd_cx88_pcm_open,
530         .close = snd_cx88_close,
531         .ioctl = snd_pcm_lib_ioctl,
532         .hw_params = snd_cx88_hw_params,
533         .hw_free = snd_cx88_hw_free,
534         .prepare = snd_cx88_prepare,
535         .trigger = snd_cx88_card_trigger,
536         .pointer = snd_cx88_pointer,
537 };
538
539 /*
540  * create a PCM device
541  */
542 static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name)
543 {
544         int err;
545         struct snd_pcm *pcm;
546
547         err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
548         if (err < 0)
549                 return err;
550         pcm->private_data = chip;
551         strcpy(pcm->name, name);
552         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx88_pcm_ops);
553
554         return 0;
555 }
556
557 /****************************************************************************
558                                 CONTROL INTERFACE
559  ****************************************************************************/
560 static int snd_cx88_capture_volume_info(struct snd_kcontrol *kcontrol,
561                                         struct snd_ctl_elem_info *info)
562 {
563         info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
564         info->count = 1;
565         info->value.integer.min = 0;
566         info->value.integer.max = 0x3f;
567
568         return 0;
569 }
570
571 /* OK - TODO: test it */
572 static int snd_cx88_capture_volume_get(struct snd_kcontrol *kcontrol,
573                                        struct snd_ctl_elem_value *value)
574 {
575         snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
576         struct cx88_core *core=chip->core;
577
578         value->value.integer.value[0] = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f);
579
580         return 0;
581 }
582
583 /* OK - TODO: test it */
584 static int snd_cx88_capture_volume_put(struct snd_kcontrol *kcontrol,
585                                        struct snd_ctl_elem_value *value)
586 {
587         snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
588         struct cx88_core *core=chip->core;
589         int v;
590         u32 old_control;
591
592         spin_lock_irq(&chip->reg_lock);
593         old_control = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f);
594         v = 0x3f - (value->value.integer.value[0] & 0x3f);
595         cx_andor(AUD_VOL_CTL, 0x3f, v);
596         spin_unlock_irq(&chip->reg_lock);
597
598         return v != old_control;
599 }
600
601 static struct snd_kcontrol_new snd_cx88_capture_volume = {
602         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
603         .name = "Capture Volume",
604         .info = snd_cx88_capture_volume_info,
605         .get = snd_cx88_capture_volume_get,
606         .put = snd_cx88_capture_volume_put,
607 };
608
609
610 /****************************************************************************
611                         Basic Flow for Sound Devices
612  ****************************************************************************/
613
614 /*
615  * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio
616  * Only boards with eeprom and byte 1 at eeprom=1 have it
617  */
618
619 static struct pci_device_id cx88_audio_pci_tbl[] = {
620         {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
621         {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
622         {0, }
623 };
624 MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl);
625
626 /*
627  * Chip-specific destructor
628  */
629
630 static int snd_cx88_free(snd_cx88_card_t *chip)
631 {
632
633         if (chip->irq >= 0){
634                 synchronize_irq(chip->irq);
635                 free_irq(chip->irq, chip);
636         }
637
638         cx88_core_put(chip->core,chip->pci);
639
640         pci_disable_device(chip->pci);
641         return 0;
642 }
643
644 /*
645  * Component Destructor
646  */
647 static void snd_cx88_dev_free(struct snd_card * card)
648 {
649         snd_cx88_card_t *chip = card->private_data;
650
651         snd_cx88_free(chip);
652 }
653
654
655 /*
656  * Alsa Constructor - Component probe
657  */
658
659 static int devno;
660 static int __devinit snd_cx88_create(struct snd_card *card,
661                                      struct pci_dev *pci,
662                                      snd_cx88_card_t **rchip)
663 {
664         snd_cx88_card_t   *chip;
665         struct cx88_core  *core;
666         int               err;
667
668         *rchip = NULL;
669
670         err = pci_enable_device(pci);
671         if (err < 0)
672                 return err;
673
674         pci_set_master(pci);
675
676         chip = (snd_cx88_card_t *) card->private_data;
677
678         core = cx88_core_get(pci);
679
680         if (!pci_dma_supported(pci,0xffffffff)) {
681                 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
694         cx88_reset(core);
695         if (NULL == core) {
696                 err = -EINVAL;
697                 kfree (chip);
698                 return err;
699         }
700         chip->core = core;
701
702         /* get irq */
703         err = request_irq(chip->pci->irq, cx8801_irq,
704                           SA_SHIRQ | SA_INTERRUPT, chip->core->name, chip);
705         if (err < 0) {
706                 dprintk(0, "%s: can't get IRQ %d\n",
707                        chip->core->name, chip->pci->irq);
708                 return err;
709         }
710
711         /* print pci info */
712         pci_read_config_byte(pci, PCI_CLASS_REVISION, &chip->pci_rev);
713         pci_read_config_byte(pci, PCI_LATENCY_TIMER,  &chip->pci_lat);
714
715         dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, "
716                "latency: %d, mmio: 0x%lx\n", core->name, devno,
717                pci_name(pci), chip->pci_rev, pci->irq,
718                chip->pci_lat,pci_resource_start(pci,0));
719
720         chip->irq = pci->irq;
721         synchronize_irq(chip->irq);
722
723         snd_card_set_dev(card, &pci->dev);
724
725         *rchip = chip;
726
727         return 0;
728 }
729
730 static int __devinit cx88_audio_initdev(struct pci_dev *pci,
731                                     const struct pci_device_id *pci_id)
732 {
733         struct snd_card  *card;
734         snd_cx88_card_t  *chip;
735         int              err;
736
737         if (devno >= SNDRV_CARDS)
738                 return (-ENODEV);
739
740         if (!enable[devno]) {
741                 ++devno;
742                 return (-ENOENT);
743         }
744
745         card = snd_card_new(index[devno], id[devno], THIS_MODULE, sizeof(snd_cx88_card_t));
746         if (!card)
747                 return (-ENOMEM);
748
749         card->private_free = snd_cx88_dev_free;
750
751         err = snd_cx88_create(card, pci, &chip);
752         if (err < 0)
753                 return (err);
754
755         err = snd_cx88_pcm(chip, 0, "CX88 Digital");
756
757         if (err < 0) {
758                 snd_card_free(card);
759                 return (err);
760         }
761
762         err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_capture_volume, chip));
763         if (err < 0) {
764                 snd_card_free(card);
765                 return (err);
766         }
767
768         strcpy (card->driver, "CX88x");
769         sprintf(card->shortname, "Conexant CX%x", pci->device);
770         sprintf(card->longname, "%s at %#lx",
771                 card->shortname, pci_resource_start(pci, 0));
772         strcpy (card->mixername, "CX88");
773
774         dprintk (0, "%s/%i: ALSA support for cx2388x boards\n",
775                card->driver,devno);
776
777         err = snd_card_register(card);
778         if (err < 0) {
779                 snd_card_free(card);
780                 return (err);
781         }
782         snd_cx88_cards[devno] = card;
783
784         pci_set_drvdata(pci,card);
785
786         devno++;
787         return 0;
788 }
789 /*
790  * ALSA destructor
791  */
792 static void __devexit cx88_audio_finidev(struct pci_dev *pci)
793 {
794         struct cx88_audio_dev *card = pci_get_drvdata(pci);
795
796         snd_card_free((void *)card);
797
798         pci_set_drvdata(pci, NULL);
799
800         devno--;
801 }
802
803 /*
804  * PCI driver definition
805  */
806
807 static struct pci_driver cx88_audio_pci_driver = {
808         .name     = "cx88_audio",
809         .id_table = cx88_audio_pci_tbl,
810         .probe    = cx88_audio_initdev,
811         .remove   = cx88_audio_finidev,
812 };
813
814 /****************************************************************************
815                                 LINUX MODULE INIT
816  ****************************************************************************/
817
818 /*
819  * module init
820  */
821 static int cx88_audio_init(void)
822 {
823         printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n",
824                (CX88_VERSION_CODE >> 16) & 0xff,
825                (CX88_VERSION_CODE >>  8) & 0xff,
826                CX88_VERSION_CODE & 0xff);
827 #ifdef SNAPSHOT
828         printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
829                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
830 #endif
831         return pci_register_driver(&cx88_audio_pci_driver);
832 }
833
834 /*
835  * module remove
836  */
837 static void cx88_audio_fini(void)
838 {
839
840         pci_unregister_driver(&cx88_audio_pci_driver);
841 }
842
843 module_init(cx88_audio_init);
844 module_exit(cx88_audio_fini);
845
846 /* ----------------------------------------------------------- */
847 /*
848  * Local variables:
849  * c-basic-offset: 8
850  * End:
851  */