Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[linux-2.6] / 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@infradead.org>
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 <linux/dma-mapping.h>
31
32 #include <asm/delay.h>
33 #include <sound/driver.h>
34 #include <sound/core.h>
35 #include <sound/pcm.h>
36 #include <sound/pcm_params.h>
37 #include <sound/control.h>
38 #include <sound/initval.h>
39
40 #include "cx88.h"
41 #include "cx88-reg.h"
42
43 #define dprintk(level,fmt, arg...)      if (debug >= level) \
44         printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg)
45
46 #define dprintk_core(level,fmt, arg...) if (debug >= level) \
47         printk(KERN_DEBUG "%s/1: " fmt, chip->core->name , ## arg)
48
49
50 /****************************************************************************
51         Data type declarations - Can be moded to a header file later
52  ****************************************************************************/
53
54 /* These can be replaced after done */
55 #define MIXER_ADDR_LAST MAX_CX88_INPUT
56
57 struct cx88_audio_dev {
58         struct cx88_core           *core;
59         struct cx88_dmaqueue       q;
60
61         /* pci i/o */
62         struct pci_dev             *pci;
63         unsigned char              pci_rev,pci_lat;
64
65         /* audio controls */
66         int                        irq;
67
68         struct snd_card            *card;
69
70         spinlock_t                 reg_lock;
71
72         unsigned int               dma_size;
73         unsigned int               period_size;
74         unsigned int               num_periods;
75
76         struct videobuf_dmabuf dma_risc;
77
78         int                        mixer_volume[MIXER_ADDR_LAST+1][2];
79         int                        capture_source[MIXER_ADDR_LAST+1][2];
80
81         long int read_count;
82         long int read_offset;
83
84         struct cx88_buffer   *buf;
85
86         long opened;
87         struct snd_pcm_substream *substream;
88
89 };
90 typedef struct cx88_audio_dev snd_cx88_card_t;
91
92
93
94 /****************************************************************************
95                         Module global static vars
96  ****************************************************************************/
97
98 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
99 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
100 static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1};
101 static struct snd_card *snd_cx88_cards[SNDRV_CARDS];
102
103 module_param_array(enable, bool, NULL, 0444);
104 MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled.");
105
106 module_param_array(index, int, NULL, 0444);
107 MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s).");
108
109
110 /****************************************************************************
111                                 Module macros
112  ****************************************************************************/
113
114 MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards");
115 MODULE_AUTHOR("Ricardo Cerqueira");
116 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
117 MODULE_LICENSE("GPL");
118 MODULE_SUPPORTED_DEVICE("{{Conexant,23881},"
119                         "{{Conexant,23882},"
120                         "{{Conexant,23883}");
121 static unsigned int debug;
122 module_param(debug,int,0644);
123 MODULE_PARM_DESC(debug,"enable debug messages");
124
125 /****************************************************************************
126                         Module specific funtions
127  ****************************************************************************/
128
129 /*
130  * BOARD Specific: Sets audio DMA
131  */
132
133 static int _cx88_start_audio_dma(snd_cx88_card_t *chip)
134 {
135         struct cx88_buffer   *buf = chip->buf;
136         struct cx88_core *core=chip->core;
137         struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25];
138
139
140         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);
141
142         /* setup fifo + format - out channel */
143         cx88_sram_channel_setup(chip->core, &cx88_sram_channels[SRAM_CH25],
144                                 buf->bpl, buf->risc.dma);
145
146         /* sets bpl size */
147         cx_write(MO_AUDD_LNGTH, buf->bpl);
148
149         /* reset counter */
150         cx_write(MO_AUDD_GPCNTRL,GP_COUNT_CONTROL_RESET);
151
152         dprintk(1,"Enabling IRQ, setting mask from 0x%x to 0x%x\n",chip->core->pci_irqmask,(chip->core->pci_irqmask | 0x02));
153         /* enable irqs */
154         cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | 0x02);
155
156
157         /* Enables corresponding bits at AUD_INT_STAT */
158         cx_write(MO_AUD_INTMSK,
159                         (1<<16)|
160                         (1<<12)|
161                         (1<<4)|
162                         (1<<0)
163                         );
164
165         /* start dma */
166         cx_set(MO_DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */
167         cx_set(MO_AUD_DMACNTRL, 0x11); /* audio downstream FIFO and RISC enable */
168
169         if (debug)
170                 cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]);
171
172         return 0;
173 }
174
175 /*
176  * BOARD Specific: Resets audio DMA
177  */
178 static int _cx88_stop_audio_dma(snd_cx88_card_t *chip)
179 {
180         struct cx88_core *core=chip->core;
181         dprintk(1, "Stopping audio DMA\n");
182
183         /* stop dma */
184         cx_clear(MO_AUD_DMACNTRL, 0x11);
185
186         /* disable irqs */
187         cx_clear(MO_PCI_INTMSK, 0x02);
188         cx_clear(MO_AUD_INTMSK,
189                         (1<<16)|
190                         (1<<12)|
191                         (1<<4)|
192                         (1<<0)
193                         );
194
195         if (debug)
196                 cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]);
197
198         return 0;
199 }
200
201 #define MAX_IRQ_LOOP 10
202
203 /*
204  * BOARD Specific: IRQ dma bits
205  */
206 static char *cx88_aud_irqs[32] = {
207         "dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */
208         NULL,                                     /* reserved */
209         "dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */
210         NULL,                                     /* reserved */
211         "dnf_of", "upf_uf", "rds_dnf_uf",         /* 8-10 */
212         NULL,                                     /* reserved */
213         "dn_sync", "up_sync", "rds_dn_sync",      /* 12-14 */
214         NULL,                                     /* reserved */
215         "opc_err", "par_err", "rip_err",          /* 16-18 */
216         "pci_abort", "ber_irq", "mchg_irq"        /* 19-21 */
217 };
218
219 /*
220  * BOARD Specific: Threats IRQ audio specific calls
221  */
222 static void cx8801_aud_irq(snd_cx88_card_t *chip)
223 {
224         struct cx88_core *core = chip->core;
225         u32 status, mask;
226         u32 count;
227
228         status = cx_read(MO_AUD_INTSTAT);
229         mask   = cx_read(MO_AUD_INTMSK);
230         if (0 == (status & mask)) {
231                 spin_unlock(&chip->reg_lock);
232                 return;
233         }
234         cx_write(MO_AUD_INTSTAT, status);
235         if (debug > 1  ||  (status & mask & ~0xff))
236                 cx88_print_irqbits(core->name, "irq aud",
237                                    cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs),
238                                    status, mask);
239         /* risc op code error */
240         if (status & (1 << 16)) {
241                 printk(KERN_WARNING "%s/0: audio risc op code error\n",core->name);
242                 cx_clear(MO_AUD_DMACNTRL, 0x11);
243                 cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]);
244         }
245
246         /* risc1 downstream */
247         if (status & 0x01) {
248                 spin_lock(&chip->reg_lock);
249                 count = cx_read(MO_AUDD_GPCNT);
250                 spin_unlock(&chip->reg_lock);
251                 if (chip->read_count == 0)
252                         chip->read_count += chip->dma_size;
253         }
254
255         if  (chip->read_count >= chip->period_size) {
256                 dprintk(2, "Elapsing period\n");
257                 snd_pcm_period_elapsed(chip->substream);
258         }
259
260         dprintk(3,"Leaving audio IRQ handler...\n");
261
262         /* FIXME: Any other status should deserve a special handling? */
263 }
264
265 /*
266  * BOARD Specific: Handles IRQ calls
267  */
268 static irqreturn_t cx8801_irq(int irq, void *dev_id)
269 {
270         snd_cx88_card_t *chip = dev_id;
271         struct cx88_core *core = chip->core;
272         u32 status;
273         int loop, handled = 0;
274
275         for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
276                 status = cx_read(MO_PCI_INTSTAT) & (core->pci_irqmask | 0x02);
277                 if (0 == status)
278                         goto out;
279                 dprintk( 3, "cx8801_irq\n" );
280                 dprintk( 3, "    loop: %d/%d\n", loop, MAX_IRQ_LOOP );
281                 dprintk( 3, "    status: %d\n", status );
282                 handled = 1;
283                 cx_write(MO_PCI_INTSTAT, status);
284
285                 if (status & 0x02)
286                 {
287                         dprintk( 2, "    ALSA IRQ handling\n" );
288                         cx8801_aud_irq(chip);
289                 }
290         };
291
292         if (MAX_IRQ_LOOP == loop) {
293                 dprintk( 0, "clearing mask\n" );
294                 dprintk(1,"%s/0: irq loop -- clearing mask\n",
295                        core->name);
296                 cx_clear(MO_PCI_INTMSK,0x02);
297         }
298
299  out:
300         return IRQ_RETVAL(handled);
301 }
302
303
304 static int dsp_buffer_free(snd_cx88_card_t *chip)
305 {
306         BUG_ON(!chip->dma_size);
307
308         dprintk(2,"Freeing buffer\n");
309         videobuf_pci_dma_unmap(chip->pci, &chip->dma_risc);
310         videobuf_dma_free(&chip->dma_risc);
311         btcx_riscmem_free(chip->pci,&chip->buf->risc);
312         kfree(chip->buf);
313
314         chip->dma_size = 0;
315
316        return 0;
317 }
318
319 /****************************************************************************
320                                 ALSA PCM Interface
321  ****************************************************************************/
322
323 /*
324  * Digital hardware definition
325  */
326 static struct snd_pcm_hardware snd_cx88_digital_hw = {
327         .info = SNDRV_PCM_INFO_MMAP |
328                 SNDRV_PCM_INFO_INTERLEAVED |
329                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
330                 SNDRV_PCM_INFO_MMAP_VALID,
331         .formats = SNDRV_PCM_FMTBIT_S16_LE,
332
333         .rates =                SNDRV_PCM_RATE_48000,
334         .rate_min =             48000,
335         .rate_max =             48000,
336         .channels_min = 1,
337         .channels_max = 2,
338         .buffer_bytes_max = (2*2048),
339         .period_bytes_min = 2048,
340         .period_bytes_max = 2048,
341         .periods_min = 2,
342         .periods_max = 2,
343 };
344
345 /*
346  * audio pcm capture runtime free
347  */
348 static void snd_card_cx88_runtime_free(struct snd_pcm_runtime *runtime)
349 {
350 }
351 /*
352  * audio pcm capture open callback
353  */
354 static int snd_cx88_pcm_open(struct snd_pcm_substream *substream)
355 {
356         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
357         struct snd_pcm_runtime *runtime = substream->runtime;
358         int err;
359
360         if (test_and_set_bit(0, &chip->opened))
361                 return -EBUSY;
362
363         err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
364         if (err < 0)
365                 goto _error;
366
367         chip->substream = substream;
368
369         chip->read_count = 0;
370         chip->read_offset = 0;
371
372         runtime->private_free = snd_card_cx88_runtime_free;
373         runtime->hw = snd_cx88_digital_hw;
374
375         return 0;
376 _error:
377         dprintk(1,"Error opening PCM!\n");
378         clear_bit(0, &chip->opened);
379         smp_mb__after_clear_bit();
380         return err;
381 }
382
383 /*
384  * audio close callback
385  */
386 static int snd_cx88_close(struct snd_pcm_substream *substream)
387 {
388         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
389
390         clear_bit(0, &chip->opened);
391         smp_mb__after_clear_bit();
392
393         return 0;
394 }
395
396 /*
397  * hw_params callback
398  */
399 static int snd_cx88_hw_params(struct snd_pcm_substream * substream,
400                               struct snd_pcm_hw_params * hw_params)
401 {
402         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
403         struct cx88_buffer *buf;
404
405         if (substream->runtime->dma_area) {
406                 dsp_buffer_free(chip);
407                 substream->runtime->dma_area = NULL;
408         }
409
410
411         chip->period_size = params_period_bytes(hw_params);
412         chip->num_periods = params_periods(hw_params);
413         chip->dma_size = chip->period_size * params_periods(hw_params);
414
415         BUG_ON(!chip->dma_size);
416
417         dprintk(1,"Setting buffer\n");
418
419         buf = kzalloc(sizeof(*buf),GFP_KERNEL);
420         if (NULL == buf)
421                 return -ENOMEM;
422
423         buf->vb.memory = V4L2_MEMORY_MMAP;
424         buf->vb.width  = chip->period_size;
425         buf->vb.height = chip->num_periods;
426         buf->vb.size   = chip->dma_size;
427         buf->vb.field  = V4L2_FIELD_NONE;
428
429         videobuf_dma_init(&buf->vb.dma);
430         videobuf_dma_init_kernel(&buf->vb.dma,PCI_DMA_FROMDEVICE,
431                         (PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT));
432
433         videobuf_pci_dma_map(chip->pci,&buf->vb.dma);
434
435
436         cx88_risc_databuffer(chip->pci, &buf->risc,
437                         buf->vb.dma.sglist,
438                         buf->vb.width, buf->vb.height);
439
440         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
441         buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
442
443         buf->vb.state = STATE_PREPARED;
444
445         buf->bpl = chip->period_size;
446         chip->buf = buf;
447         chip->dma_risc = buf->vb.dma;
448
449         dprintk(1,"Buffer ready at %u\n",chip->dma_risc.nr_pages);
450         substream->runtime->dma_area = chip->dma_risc.vmalloc;
451         return 0;
452 }
453
454 /*
455  * hw free callback
456  */
457 static int snd_cx88_hw_free(struct snd_pcm_substream * substream)
458 {
459
460         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
461
462         if (substream->runtime->dma_area) {
463                 dsp_buffer_free(chip);
464                 substream->runtime->dma_area = NULL;
465         }
466
467         return 0;
468 }
469
470 /*
471  * prepare callback
472  */
473 static int snd_cx88_prepare(struct snd_pcm_substream *substream)
474 {
475         return 0;
476 }
477
478
479 /*
480  * trigger callback
481  */
482 static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd)
483 {
484         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
485         int err;
486
487         spin_lock(&chip->reg_lock);
488
489         switch (cmd) {
490         case SNDRV_PCM_TRIGGER_START:
491                 err=_cx88_start_audio_dma(chip);
492                 break;
493         case SNDRV_PCM_TRIGGER_STOP:
494                 err=_cx88_stop_audio_dma(chip);
495                 break;
496         default:
497                 err=-EINVAL;
498                 break;
499         }
500
501         spin_unlock(&chip->reg_lock);
502
503         return err;
504 }
505
506 /*
507  * pointer callback
508  */
509 static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream)
510 {
511         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
512         struct snd_pcm_runtime *runtime = substream->runtime;
513
514         if (chip->read_count) {
515                 chip->read_count -= snd_pcm_lib_period_bytes(substream);
516                 chip->read_offset += snd_pcm_lib_period_bytes(substream);
517                 if (chip->read_offset == chip->dma_size)
518                         chip->read_offset = 0;
519         }
520
521         dprintk(2, "Pointer time, will return %li, read %li\n",chip->read_offset,chip->read_count);
522         return bytes_to_frames(runtime, chip->read_offset);
523
524 }
525
526 /*
527  * operators
528  */
529 static struct snd_pcm_ops snd_cx88_pcm_ops = {
530         .open = snd_cx88_pcm_open,
531         .close = snd_cx88_close,
532         .ioctl = snd_pcm_lib_ioctl,
533         .hw_params = snd_cx88_hw_params,
534         .hw_free = snd_cx88_hw_free,
535         .prepare = snd_cx88_prepare,
536         .trigger = snd_cx88_card_trigger,
537         .pointer = snd_cx88_pointer,
538 };
539
540 /*
541  * create a PCM device
542  */
543 static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name)
544 {
545         int err;
546         struct snd_pcm *pcm;
547
548         err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
549         if (err < 0)
550                 return err;
551         pcm->private_data = chip;
552         strcpy(pcm->name, name);
553         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx88_pcm_ops);
554
555         return 0;
556 }
557
558 /****************************************************************************
559                                 CONTROL INTERFACE
560  ****************************************************************************/
561 static int snd_cx88_capture_volume_info(struct snd_kcontrol *kcontrol,
562                                         struct snd_ctl_elem_info *info)
563 {
564         info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
565         info->count = 1;
566         info->value.integer.min = 0;
567         info->value.integer.max = 0x3f;
568
569         return 0;
570 }
571
572 /* OK - TODO: test it */
573 static int snd_cx88_capture_volume_get(struct snd_kcontrol *kcontrol,
574                                        struct snd_ctl_elem_value *value)
575 {
576         snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
577         struct cx88_core *core=chip->core;
578
579         value->value.integer.value[0] = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f);
580
581         return 0;
582 }
583
584 /* OK - TODO: test it */
585 static int snd_cx88_capture_volume_put(struct snd_kcontrol *kcontrol,
586                                        struct snd_ctl_elem_value *value)
587 {
588         snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
589         struct cx88_core *core=chip->core;
590         int v;
591         u32 old_control;
592
593         spin_lock_irq(&chip->reg_lock);
594         old_control = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f);
595         v = 0x3f - (value->value.integer.value[0] & 0x3f);
596         cx_andor(AUD_VOL_CTL, 0x3f, v);
597         spin_unlock_irq(&chip->reg_lock);
598
599         return v != old_control;
600 }
601
602 static struct snd_kcontrol_new snd_cx88_capture_volume = {
603         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
604         .name = "Capture Volume",
605         .info = snd_cx88_capture_volume_info,
606         .get = snd_cx88_capture_volume_get,
607         .put = snd_cx88_capture_volume_put,
608 };
609
610
611 /****************************************************************************
612                         Basic Flow for Sound Devices
613  ****************************************************************************/
614
615 /*
616  * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio
617  * Only boards with eeprom and byte 1 at eeprom=1 have it
618  */
619
620 static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = {
621         {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
622         {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
623         {0, }
624 };
625 MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl);
626
627 /*
628  * Chip-specific destructor
629  */
630
631 static int snd_cx88_free(snd_cx88_card_t *chip)
632 {
633
634         if (chip->irq >= 0){
635                 synchronize_irq(chip->irq);
636                 free_irq(chip->irq, chip);
637         }
638
639         cx88_core_put(chip->core,chip->pci);
640
641         pci_disable_device(chip->pci);
642         return 0;
643 }
644
645 /*
646  * Component Destructor
647  */
648 static void snd_cx88_dev_free(struct snd_card * card)
649 {
650         snd_cx88_card_t *chip = card->private_data;
651
652         snd_cx88_free(chip);
653 }
654
655
656 /*
657  * Alsa Constructor - Component probe
658  */
659
660 static int devno;
661 static int __devinit snd_cx88_create(struct snd_card *card,
662                                      struct pci_dev *pci,
663                                      snd_cx88_card_t **rchip)
664 {
665         snd_cx88_card_t   *chip;
666         struct cx88_core  *core;
667         int               err;
668
669         *rchip = NULL;
670
671         err = pci_enable_device(pci);
672         if (err < 0)
673                 return err;
674
675         pci_set_master(pci);
676
677         chip = (snd_cx88_card_t *) card->private_data;
678
679         core = cx88_core_get(pci);
680         if (NULL == core) {
681                 err = -EINVAL;
682                 kfree (chip);
683                 return err;
684         }
685
686         if (!pci_dma_supported(pci,DMA_32BIT_MASK)) {
687                 dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
688                 err = -EIO;
689                 cx88_core_put(core,pci);
690                 return err;
691         }
692
693
694         /* pci init */
695         chip->card = card;
696         chip->pci = pci;
697         chip->irq = -1;
698         spin_lock_init(&chip->reg_lock);
699
700         chip->core = core;
701
702         /* get irq */
703         err = request_irq(chip->pci->irq, cx8801_irq,
704                           IRQF_SHARED | IRQF_DISABLED, 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%llx\n", core->name, devno,
717                pci_name(pci), chip->pci_rev, pci->irq,
718                chip->pci_lat,(unsigned long long)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 %#llx",
771                 card->shortname,(unsigned long long)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  */