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27#include <linux/module.h>
28#include <linux/init.h>
29#include <linux/device.h>
30#include <linux/interrupt.h>
31#include <linux/vmalloc.h>
32#include <linux/dma-mapping.h>
33#include <linux/pci.h>
34
35#include <asm/delay.h>
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>
41#include <sound/tlv.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
52
53
54
55
56struct cx88_audio_dev {
57 struct cx88_core *core;
58 struct cx88_dmaqueue q;
59
60
61 struct pci_dev *pci;
62
63
64 int irq;
65
66 struct snd_card *card;
67
68 spinlock_t reg_lock;
69 atomic_t count;
70
71 unsigned int dma_size;
72 unsigned int period_size;
73 unsigned int num_periods;
74
75 struct videobuf_dmabuf *dma_risc;
76
77 struct cx88_buffer *buf;
78
79 struct snd_pcm_substream *substream;
80};
81typedef struct cx88_audio_dev snd_cx88_card_t;
82
83
84
85
86
87
88
89static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
90static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
91static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1};
92
93module_param_array(enable, bool, NULL, 0444);
94MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled.");
95
96module_param_array(index, int, NULL, 0444);
97MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s).");
98
99
100
101
102
103
104MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards");
105MODULE_AUTHOR("Ricardo Cerqueira");
106MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
107MODULE_LICENSE("GPL");
108MODULE_SUPPORTED_DEVICE("{{Conexant,23881},"
109 "{{Conexant,23882},"
110 "{{Conexant,23883}");
111static unsigned int debug;
112module_param(debug,int,0644);
113MODULE_PARM_DESC(debug,"enable debug messages");
114
115
116
117
118
119
120
121
122
123static int _cx88_start_audio_dma(snd_cx88_card_t *chip)
124{
125 struct cx88_buffer *buf = chip->buf;
126 struct cx88_core *core=chip->core;
127 struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25];
128
129
130 cx_clear(MO_AUD_DMACNTRL, 0x11);
131
132
133 cx88_sram_channel_setup(chip->core, audio_ch, buf->bpl, buf->risc.dma);
134
135
136 cx_write(MO_AUDD_LNGTH, buf->bpl);
137
138
139 cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET);
140 atomic_set(&chip->count, 0);
141
142 dprintk(1, "Start audio DMA, %d B/line, %d lines/FIFO, %d periods, %d "
143 "byte buffer\n", buf->bpl, cx_read(audio_ch->cmds_start + 8)>>1,
144 chip->num_periods, buf->bpl * chip->num_periods);
145
146
147 cx_write(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC |
148 AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1);
149
150
151 cx_write(MO_AUD_INTSTAT, ~0);
152
153
154 cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | PCI_INT_AUDINT);
155
156
157 cx_set(MO_DEV_CNTRL2, (1<<5));
158 cx_set(MO_AUD_DMACNTRL, 0x11);
159
160 if (debug)
161 cx88_sram_channel_dump(chip->core, audio_ch);
162
163 return 0;
164}
165
166
167
168
169static int _cx88_stop_audio_dma(snd_cx88_card_t *chip)
170{
171 struct cx88_core *core=chip->core;
172 dprintk(1, "Stopping audio DMA\n");
173
174
175 cx_clear(MO_AUD_DMACNTRL, 0x11);
176
177
178 cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT);
179 cx_clear(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC |
180 AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1);
181
182 if (debug)
183 cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]);
184
185 return 0;
186}
187
188#define MAX_IRQ_LOOP 50
189
190
191
192
193static char *cx88_aud_irqs[32] = {
194 "dn_risci1", "up_risci1", "rds_dn_risc1",
195 NULL,
196 "dn_risci2", "up_risci2", "rds_dn_risc2",
197 NULL,
198 "dnf_of", "upf_uf", "rds_dnf_uf",
199 NULL,
200 "dn_sync", "up_sync", "rds_dn_sync",
201 NULL,
202 "opc_err", "par_err", "rip_err",
203 "pci_abort", "ber_irq", "mchg_irq"
204};
205
206
207
208
209static void cx8801_aud_irq(snd_cx88_card_t *chip)
210{
211 struct cx88_core *core = chip->core;
212 u32 status, mask;
213
214 status = cx_read(MO_AUD_INTSTAT);
215 mask = cx_read(MO_AUD_INTMSK);
216 if (0 == (status & mask))
217 return;
218 cx_write(MO_AUD_INTSTAT, status);
219 if (debug > 1 || (status & mask & ~0xff))
220 cx88_print_irqbits(core->name, "irq aud",
221 cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs),
222 status, mask);
223
224 if (status & AUD_INT_OPC_ERR) {
225 printk(KERN_WARNING "%s/1: Audio risc op code error\n",core->name);
226 cx_clear(MO_AUD_DMACNTRL, 0x11);
227 cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]);
228 }
229 if (status & AUD_INT_DN_SYNC) {
230 dprintk(1, "Downstream sync error\n");
231 cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET);
232 return;
233 }
234
235 if (status & AUD_INT_DN_RISCI1) {
236 atomic_set(&chip->count, cx_read(MO_AUDD_GPCNT));
237 snd_pcm_period_elapsed(chip->substream);
238 }
239
240}
241
242
243
244
245static irqreturn_t cx8801_irq(int irq, void *dev_id)
246{
247 snd_cx88_card_t *chip = dev_id;
248 struct cx88_core *core = chip->core;
249 u32 status;
250 int loop, handled = 0;
251
252 for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
253 status = cx_read(MO_PCI_INTSTAT) &
254 (core->pci_irqmask | PCI_INT_AUDINT);
255 if (0 == status)
256 goto out;
257 dprintk(3, "cx8801_irq loop %d/%d, status %x\n",
258 loop, MAX_IRQ_LOOP, status);
259 handled = 1;
260 cx_write(MO_PCI_INTSTAT, status);
261
262 if (status & core->pci_irqmask)
263 cx88_core_irq(core, status);
264 if (status & PCI_INT_AUDINT)
265 cx8801_aud_irq(chip);
266 }
267
268 if (MAX_IRQ_LOOP == loop) {
269 printk(KERN_ERR
270 "%s/1: IRQ loop detected, disabling interrupts\n",
271 core->name);
272 cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT);
273 }
274
275 out:
276 return IRQ_RETVAL(handled);
277}
278
279
280static int dsp_buffer_free(snd_cx88_card_t *chip)
281{
282 BUG_ON(!chip->dma_size);
283
284 dprintk(2,"Freeing buffer\n");
285 videobuf_sg_dma_unmap(&chip->pci->dev, chip->dma_risc);
286 videobuf_dma_free(chip->dma_risc);
287 btcx_riscmem_free(chip->pci,&chip->buf->risc);
288 kfree(chip->buf);
289
290 chip->dma_risc = NULL;
291 chip->dma_size = 0;
292
293 return 0;
294}
295
296
297
298
299
300
301
302
303#define DEFAULT_FIFO_SIZE 4096
304static struct snd_pcm_hardware snd_cx88_digital_hw = {
305 .info = SNDRV_PCM_INFO_MMAP |
306 SNDRV_PCM_INFO_INTERLEAVED |
307 SNDRV_PCM_INFO_BLOCK_TRANSFER |
308 SNDRV_PCM_INFO_MMAP_VALID,
309 .formats = SNDRV_PCM_FMTBIT_S16_LE,
310
311 .rates = SNDRV_PCM_RATE_48000,
312 .rate_min = 48000,
313 .rate_max = 48000,
314 .channels_min = 2,
315 .channels_max = 2,
316
317
318 .period_bytes_min = DEFAULT_FIFO_SIZE/4,
319 .period_bytes_max = DEFAULT_FIFO_SIZE/4,
320 .periods_min = 1,
321 .periods_max = 1024,
322 .buffer_bytes_max = (1024*1024),
323};
324
325
326
327
328static int snd_cx88_pcm_open(struct snd_pcm_substream *substream)
329{
330 snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
331 struct snd_pcm_runtime *runtime = substream->runtime;
332 int err;
333
334 if (!chip) {
335 printk(KERN_ERR "BUG: cx88 can't find device struct."
336 " Can't proceed with open\n");
337 return -ENODEV;
338 }
339
340 err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS);
341 if (err < 0)
342 goto _error;
343
344 chip->substream = substream;
345
346 runtime->hw = snd_cx88_digital_hw;
347
348 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;
351 runtime->hw.period_bytes_min = bpl;
352 runtime->hw.period_bytes_max = bpl;
353 }
354
355 return 0;
356_error:
357 dprintk(1,"Error opening PCM!\n");
358 return err;
359}
360
361
362
363
364static int snd_cx88_close(struct snd_pcm_substream *substream)
365{
366 return 0;
367}
368
369
370
371
372static int snd_cx88_hw_params(struct snd_pcm_substream * substream,
373 struct snd_pcm_hw_params * hw_params)
374{
375 snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
376 struct videobuf_dmabuf *dma;
377
378 struct cx88_buffer *buf;
379 int ret;
380
381 if (substream->runtime->dma_area) {
382 dsp_buffer_free(chip);
383 substream->runtime->dma_area = NULL;
384 }
385
386 chip->period_size = params_period_bytes(hw_params);
387 chip->num_periods = params_periods(hw_params);
388 chip->dma_size = chip->period_size * params_periods(hw_params);
389
390 BUG_ON(!chip->dma_size);
391 BUG_ON(chip->num_periods & (chip->num_periods-1));
392
393 buf = videobuf_sg_alloc(sizeof(*buf));
394 if (NULL == buf)
395 return -ENOMEM;
396
397 buf->vb.memory = V4L2_MEMORY_MMAP;
398 buf->vb.field = V4L2_FIELD_NONE;
399 buf->vb.width = chip->period_size;
400 buf->bpl = chip->period_size;
401 buf->vb.height = chip->num_periods;
402 buf->vb.size = chip->dma_size;
403
404 dma = videobuf_to_dma(&buf->vb);
405 videobuf_dma_init(dma);
406 ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE,
407 (PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT));
408 if (ret < 0)
409 goto error;
410
411 ret = videobuf_sg_dma_map(&chip->pci->dev, dma);
412 if (ret < 0)
413 goto error;
414
415 ret = cx88_risc_databuffer(chip->pci, &buf->risc, dma->sglist,
416 buf->vb.width, buf->vb.height, 1);
417 if (ret < 0)
418 goto error;
419
420
421 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC);
422 buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
423
424 buf->vb.state = VIDEOBUF_PREPARED;
425
426 chip->buf = buf;
427 chip->dma_risc = dma;
428
429 substream->runtime->dma_area = chip->dma_risc->vmalloc;
430 substream->runtime->dma_bytes = chip->dma_size;
431 substream->runtime->dma_addr = 0;
432 return 0;
433
434error:
435 kfree(buf);
436 return ret;
437}
438
439
440
441
442static int snd_cx88_hw_free(struct snd_pcm_substream * substream)
443{
444
445 snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
446
447 if (substream->runtime->dma_area) {
448 dsp_buffer_free(chip);
449 substream->runtime->dma_area = NULL;
450 }
451
452 return 0;
453}
454
455
456
457
458static int snd_cx88_prepare(struct snd_pcm_substream *substream)
459{
460 return 0;
461}
462
463
464
465
466static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd)
467{
468 snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
469 int err;
470
471
472 spin_lock(&chip->reg_lock);
473
474 switch (cmd) {
475 case SNDRV_PCM_TRIGGER_START:
476 err=_cx88_start_audio_dma(chip);
477 break;
478 case SNDRV_PCM_TRIGGER_STOP:
479 err=_cx88_stop_audio_dma(chip);
480 break;
481 default:
482 err=-EINVAL;
483 break;
484 }
485
486 spin_unlock(&chip->reg_lock);
487
488 return err;
489}
490
491
492
493
494static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream)
495{
496 snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
497 struct snd_pcm_runtime *runtime = substream->runtime;
498 u16 count;
499
500 count = atomic_read(&chip->count);
501
502
503
504
505 return runtime->period_size * (count & (runtime->periods-1));
506}
507
508
509
510
511static struct page *snd_cx88_page(struct snd_pcm_substream *substream,
512 unsigned long offset)
513{
514 void *pageptr = substream->runtime->dma_area + offset;
515 return vmalloc_to_page(pageptr);
516}
517
518
519
520
521static struct snd_pcm_ops snd_cx88_pcm_ops = {
522 .open = snd_cx88_pcm_open,
523 .close = snd_cx88_close,
524 .ioctl = snd_pcm_lib_ioctl,
525 .hw_params = snd_cx88_hw_params,
526 .hw_free = snd_cx88_hw_free,
527 .prepare = snd_cx88_prepare,
528 .trigger = snd_cx88_card_trigger,
529 .pointer = snd_cx88_pointer,
530 .page = snd_cx88_page,
531};
532
533
534
535
536static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name)
537{
538 int err;
539 struct snd_pcm *pcm;
540
541 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
542 if (err < 0)
543 return err;
544 pcm->private_data = chip;
545 strcpy(pcm->name, name);
546 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx88_pcm_ops);
547
548 return 0;
549}
550
551
552
553
554static int snd_cx88_volume_info(struct snd_kcontrol *kcontrol,
555 struct snd_ctl_elem_info *info)
556{
557 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
558 info->count = 2;
559 info->value.integer.min = 0;
560 info->value.integer.max = 0x3f;
561
562 return 0;
563}
564
565static int snd_cx88_volume_get(struct snd_kcontrol *kcontrol,
566 struct snd_ctl_elem_value *value)
567{
568 snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
569 struct cx88_core *core=chip->core;
570 int vol = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f),
571 bal = cx_read(AUD_BAL_CTL);
572
573 value->value.integer.value[(bal & 0x40) ? 0 : 1] = vol;
574 vol -= (bal & 0x3f);
575 value->value.integer.value[(bal & 0x40) ? 1 : 0] = vol < 0 ? 0 : vol;
576
577 return 0;
578}
579
580
581static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol,
582 struct snd_ctl_elem_value *value)
583{
584 snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
585 struct cx88_core *core=chip->core;
586 int v, b;
587 int changed = 0;
588 u32 old;
589
590 b = value->value.integer.value[1] - value->value.integer.value[0];
591 if (b < 0) {
592 v = 0x3f - value->value.integer.value[0];
593 b = (-b) | 0x40;
594 } else {
595 v = 0x3f - value->value.integer.value[1];
596 }
597
598 spin_lock_irq(&chip->reg_lock);
599 old = cx_read(AUD_VOL_CTL);
600 if (v != (old & 0x3f)) {
601 cx_write(AUD_VOL_CTL, (old & ~0x3f) | v);
602 changed = 1;
603 }
604 if (cx_read(AUD_BAL_CTL) != b) {
605 cx_write(AUD_BAL_CTL, b);
606 changed = 1;
607 }
608 spin_unlock_irq(&chip->reg_lock);
609
610 return changed;
611}
612
613static const DECLARE_TLV_DB_SCALE(snd_cx88_db_scale, -6300, 100, 0);
614
615static struct snd_kcontrol_new snd_cx88_volume = {
616 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
617 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
618 SNDRV_CTL_ELEM_ACCESS_TLV_READ,
619 .name = "Playback Volume",
620 .info = snd_cx88_volume_info,
621 .get = snd_cx88_volume_get,
622 .put = snd_cx88_volume_put,
623 .tlv.p = snd_cx88_db_scale,
624};
625
626static int snd_cx88_switch_get(struct snd_kcontrol *kcontrol,
627 struct snd_ctl_elem_value *value)
628{
629 snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
630 struct cx88_core *core = chip->core;
631 u32 bit = kcontrol->private_value;
632
633 value->value.integer.value[0] = !(cx_read(AUD_VOL_CTL) & bit);
634 return 0;
635}
636
637static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol,
638 struct snd_ctl_elem_value *value)
639{
640 snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
641 struct cx88_core *core = chip->core;
642 u32 bit = kcontrol->private_value;
643 int ret = 0;
644 u32 vol;
645
646 spin_lock_irq(&chip->reg_lock);
647 vol = cx_read(AUD_VOL_CTL);
648 if (value->value.integer.value[0] != !(vol & bit)) {
649 vol ^= bit;
650 cx_write(AUD_VOL_CTL, vol);
651 ret = 1;
652 }
653 spin_unlock_irq(&chip->reg_lock);
654 return ret;
655}
656
657static struct snd_kcontrol_new snd_cx88_dac_switch = {
658 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
659 .name = "Playback Switch",
660 .info = snd_ctl_boolean_mono_info,
661 .get = snd_cx88_switch_get,
662 .put = snd_cx88_switch_put,
663 .private_value = (1<<8),
664};
665
666static struct snd_kcontrol_new snd_cx88_source_switch = {
667 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
668 .name = "Capture Switch",
669 .info = snd_ctl_boolean_mono_info,
670 .get = snd_cx88_switch_get,
671 .put = snd_cx88_switch_put,
672 .private_value = (1<<6),
673};
674
675
676
677
678
679
680
681
682
683
684static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = {
685 {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
686 {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
687 {0, }
688};
689MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl);
690
691
692
693
694
695static int snd_cx88_free(snd_cx88_card_t *chip)
696{
697
698 if (chip->irq >= 0)
699 free_irq(chip->irq, chip);
700
701 cx88_core_put(chip->core,chip->pci);
702
703 pci_disable_device(chip->pci);
704 return 0;
705}
706
707
708
709
710static void snd_cx88_dev_free(struct snd_card * card)
711{
712 snd_cx88_card_t *chip = card->private_data;
713
714 snd_cx88_free(chip);
715}
716
717
718
719
720
721
722static int devno;
723static int __devinit snd_cx88_create(struct snd_card *card,
724 struct pci_dev *pci,
725 snd_cx88_card_t **rchip)
726{
727 snd_cx88_card_t *chip;
728 struct cx88_core *core;
729 int err;
730 unsigned char pci_lat;
731
732 *rchip = NULL;
733
734 err = pci_enable_device(pci);
735 if (err < 0)
736 return err;
737
738 pci_set_master(pci);
739
740 chip = (snd_cx88_card_t *) card->private_data;
741
742 core = cx88_core_get(pci);
743 if (NULL == core) {
744 err = -EINVAL;
745 kfree (chip);
746 return err;
747 }
748
749 if (!pci_dma_supported(pci,DMA_32BIT_MASK)) {
750 dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
751 err = -EIO;
752 cx88_core_put(core,pci);
753 return err;
754 }
755
756
757
758 chip->card = card;
759 chip->pci = pci;
760 chip->irq = -1;
761 spin_lock_init(&chip->reg_lock);
762
763 chip->core = core;
764
765
766 err = request_irq(chip->pci->irq, cx8801_irq,
767 IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip);
768 if (err < 0) {
769 dprintk(0, "%s: can't get IRQ %d\n",
770 chip->core->name, chip->pci->irq);
771 return err;
772 }
773
774
775 pci_read_config_byte(pci, PCI_LATENCY_TIMER, &pci_lat);
776
777 dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, "
778 "latency: %d, mmio: 0x%llx\n", core->name, devno,
779 pci_name(pci), pci->revision, pci->irq,
780 pci_lat, (unsigned long long)pci_resource_start(pci,0));
781
782 chip->irq = pci->irq;
783 synchronize_irq(chip->irq);
784
785 snd_card_set_dev(card, &pci->dev);
786
787 *rchip = chip;
788
789 return 0;
790}
791
792static int __devinit cx88_audio_initdev(struct pci_dev *pci,
793 const struct pci_device_id *pci_id)
794{
795 struct snd_card *card;
796 snd_cx88_card_t *chip;
797 int err;
798
799 if (devno >= SNDRV_CARDS)
800 return (-ENODEV);
801
802 if (!enable[devno]) {
803 ++devno;
804 return (-ENOENT);
805 }
806
807 card = snd_card_new(index[devno], id[devno], THIS_MODULE, sizeof(snd_cx88_card_t));
808 if (!card)
809 return (-ENOMEM);
810
811 card->private_free = snd_cx88_dev_free;
812
813 err = snd_cx88_create(card, pci, &chip);
814 if (err < 0)
815 return (err);
816
817 err = snd_cx88_pcm(chip, 0, "CX88 Digital");
818 if (err < 0)
819 goto error;
820
821 err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_volume, chip));
822 if (err < 0)
823 goto error;
824 err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_dac_switch, chip));
825 if (err < 0)
826 goto error;
827 err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_source_switch, chip));
828 if (err < 0)
829 goto error;
830
831 strcpy (card->driver, "CX88x");
832 sprintf(card->shortname, "Conexant CX%x", pci->device);
833 sprintf(card->longname, "%s at %#llx",
834 card->shortname,(unsigned long long)pci_resource_start(pci, 0));
835 strcpy (card->mixername, "CX88");
836
837 dprintk (0, "%s/%i: ALSA support for cx2388x boards\n",
838 card->driver,devno);
839
840 err = snd_card_register(card);
841 if (err < 0)
842 goto error;
843 pci_set_drvdata(pci,card);
844
845 devno++;
846 return 0;
847
848error:
849 snd_card_free(card);
850 return err;
851}
852
853
854
855static void __devexit cx88_audio_finidev(struct pci_dev *pci)
856{
857 struct cx88_audio_dev *card = pci_get_drvdata(pci);
858
859 snd_card_free((void *)card);
860
861 pci_set_drvdata(pci, NULL);
862
863 devno--;
864}
865
866
867
868
869
870static struct pci_driver cx88_audio_pci_driver = {
871 .name = "cx88_audio",
872 .id_table = cx88_audio_pci_tbl,
873 .probe = cx88_audio_initdev,
874 .remove = cx88_audio_finidev,
875};
876
877
878
879
880
881
882
883
884static int cx88_audio_init(void)
885{
886 printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n",
887 (CX88_VERSION_CODE >> 16) & 0xff,
888 (CX88_VERSION_CODE >> 8) & 0xff,
889 CX88_VERSION_CODE & 0xff);
890#ifdef SNAPSHOT
891 printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
892 SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
893#endif
894 return pci_register_driver(&cx88_audio_pci_driver);
895}
896
897
898
899
900static void cx88_audio_fini(void)
901{
902
903 pci_unregister_driver(&cx88_audio_pci_driver);
904}
905
906module_init(cx88_audio_init);
907module_exit(cx88_audio_fini);
908
909
910
911
912
913
914
915
