V4L/DVB: cx88: Move I2C IR initialization
[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) 2007 Trent Piepho <xyzzy@speakeasy.org>
7  *    (c) 2005,2006 Ricardo Cerqueira <v4l@cerqueira.org>
8  *    (c) 2005 Mauro Carvalho Chehab <mchehab@infradead.org>
9  *    Based on a dummy cx88 module by Gerd Knorr <kraxel@bytesex.org>
10  *    Based on dummy.c by Jaroslav Kysela <perex@perex.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>
31 #include <linux/vmalloc.h>
32 #include <linux/dma-mapping.h>
33 #include <linux/pci.h>
34 #include <linux/slab.h>
35
36 #include <asm/delay.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 #include <sound/tlv.h>
43
44 #include "cx88.h"
45 #include "cx88-reg.h"
46
47 #define dprintk(level,fmt, arg...)      if (debug >= level) \
48         printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg)
49
50 #define dprintk_core(level,fmt, arg...) if (debug >= level) \
51         printk(KERN_DEBUG "%s/1: " fmt, chip->core->name , ## arg)
52
53 /****************************************************************************
54         Data type declarations - Can be moded to a header file later
55  ****************************************************************************/
56
57 struct cx88_audio_buffer {
58         unsigned int               bpl;
59         struct btcx_riscmem        risc;
60         struct videobuf_dmabuf     dma;
61 };
62
63 struct cx88_audio_dev {
64         struct cx88_core           *core;
65         struct cx88_dmaqueue       q;
66
67         /* pci i/o */
68         struct pci_dev             *pci;
69
70         /* audio controls */
71         int                        irq;
72
73         struct snd_card            *card;
74
75         spinlock_t                 reg_lock;
76         atomic_t                   count;
77
78         unsigned int               dma_size;
79         unsigned int               period_size;
80         unsigned int               num_periods;
81
82         struct videobuf_dmabuf     *dma_risc;
83
84         struct cx88_audio_buffer   *buf;
85
86         struct snd_pcm_substream   *substream;
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
100 module_param_array(enable, bool, NULL, 0444);
101 MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled.");
102
103 module_param_array(index, int, NULL, 0444);
104 MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s).");
105
106
107 /****************************************************************************
108                                 Module macros
109  ****************************************************************************/
110
111 MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards");
112 MODULE_AUTHOR("Ricardo Cerqueira");
113 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
114 MODULE_LICENSE("GPL");
115 MODULE_SUPPORTED_DEVICE("{{Conexant,23881},"
116                         "{{Conexant,23882},"
117                         "{{Conexant,23883}");
118 static unsigned int debug;
119 module_param(debug,int,0644);
120 MODULE_PARM_DESC(debug,"enable debug messages");
121
122 /****************************************************************************
123                         Module specific funtions
124  ****************************************************************************/
125
126 /*
127  * BOARD Specific: Sets audio DMA
128  */
129
130 static int _cx88_start_audio_dma(snd_cx88_card_t *chip)
131 {
132         struct cx88_audio_buffer *buf = chip->buf;
133         struct cx88_core *core=chip->core;
134         struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25];
135
136         /* Make sure RISC/FIFO are off before changing FIFO/RISC settings */
137         cx_clear(MO_AUD_DMACNTRL, 0x11);
138
139         /* setup fifo + format - out channel */
140         cx88_sram_channel_setup(chip->core, audio_ch, buf->bpl, buf->risc.dma);
141
142         /* sets bpl size */
143         cx_write(MO_AUDD_LNGTH, buf->bpl);
144
145         /* reset counter */
146         cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET);
147         atomic_set(&chip->count, 0);
148
149         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,
151                 chip->num_periods, buf->bpl * chip->num_periods);
152
153         /* Enables corresponding bits at AUD_INT_STAT */
154         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);
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, audio_ch);
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, PCI_INT_AUDINT);
186         cx_clear(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC |
187                                 AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1);
188
189         if (debug)
190                 cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]);
191
192         return 0;
193 }
194
195 #define MAX_IRQ_LOOP 50
196
197 /*
198  * BOARD Specific: IRQ dma bits
199  */
200 static 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  */
216 static void cx8801_aud_irq(snd_cx88_card_t *chip)
217 {
218         struct cx88_core *core = chip->core;
219         u32 status, mask;
220
221         status = cx_read(MO_AUD_INTSTAT);
222         mask   = cx_read(MO_AUD_INTMSK);
223         if (0 == (status & mask))
224                 return;
225         cx_write(MO_AUD_INTSTAT, status);
226         if (debug > 1  ||  (status & mask & ~0xff))
227                 cx88_print_irqbits(core->name, "irq aud",
228                                    cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs),
229                                    status, mask);
230         /* risc op code error */
231         if (status & AUD_INT_OPC_ERR) {
232                 printk(KERN_WARNING "%s/1: Audio risc op code error\n",core->name);
233                 cx_clear(MO_AUD_DMACNTRL, 0x11);
234                 cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]);
235         }
236         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         }
241         /* risc1 downstream */
242         if (status & AUD_INT_DN_RISCI1) {
243                 atomic_set(&chip->count, cx_read(MO_AUDD_GPCNT));
244                 snd_pcm_period_elapsed(chip->substream);
245         }
246         /* FIXME: Any other status should deserve a special handling? */
247 }
248
249 /*
250  * BOARD Specific: Handles IRQ calls
251  */
252 static irqreturn_t cx8801_irq(int irq, void *dev_id)
253 {
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++) {
260                 status = cx_read(MO_PCI_INTSTAT) &
261                         (core->pci_irqmask | PCI_INT_AUDINT);
262                 if (0 == status)
263                         goto out;
264                 dprintk(3, "cx8801_irq loop %d/%d, status %x\n",
265                         loop, MAX_IRQ_LOOP, status);
266                 handled = 1;
267                 cx_write(MO_PCI_INTSTAT, status);
268
269                 if (status & core->pci_irqmask)
270                         cx88_core_irq(core, status);
271                 if (status & PCI_INT_AUDINT)
272                         cx8801_aud_irq(chip);
273         }
274
275         if (MAX_IRQ_LOOP == loop) {
276                 printk(KERN_ERR
277                        "%s/1: IRQ loop detected, disabling interrupts\n",
278                        core->name);
279                 cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT);
280         }
281
282  out:
283         return IRQ_RETVAL(handled);
284 }
285
286
287 static int dsp_buffer_free(snd_cx88_card_t *chip)
288 {
289         BUG_ON(!chip->dma_size);
290
291         dprintk(2,"Freeing buffer\n");
292         videobuf_dma_unmap(&chip->pci->dev, chip->dma_risc);
293         videobuf_dma_free(chip->dma_risc);
294         btcx_riscmem_free(chip->pci,&chip->buf->risc);
295         kfree(chip->buf);
296
297         chip->dma_risc = NULL;
298         chip->dma_size = 0;
299
300         return 0;
301 }
302
303 /****************************************************************************
304                                 ALSA PCM Interface
305  ****************************************************************************/
306
307 /*
308  * Digital hardware definition
309  */
310 #define DEFAULT_FIFO_SIZE       4096
311 static struct snd_pcm_hardware snd_cx88_digital_hw = {
312         .info = SNDRV_PCM_INFO_MMAP |
313                 SNDRV_PCM_INFO_INTERLEAVED |
314                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
315                 SNDRV_PCM_INFO_MMAP_VALID,
316         .formats = SNDRV_PCM_FMTBIT_S16_LE,
317
318         .rates =                SNDRV_PCM_RATE_48000,
319         .rate_min =             48000,
320         .rate_max =             48000,
321         .channels_min = 2,
322         .channels_max = 2,
323         /* Analog audio output will be full of clicks and pops if there
324            are not exactly four lines in the SRAM FIFO buffer.  */
325         .period_bytes_min = DEFAULT_FIFO_SIZE/4,
326         .period_bytes_max = DEFAULT_FIFO_SIZE/4,
327         .periods_min = 1,
328         .periods_max = 1024,
329         .buffer_bytes_max = (1024*1024),
330 };
331
332 /*
333  * audio pcm capture open callback
334  */
335 static int snd_cx88_pcm_open(struct snd_pcm_substream *substream)
336 {
337         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
338         struct snd_pcm_runtime *runtime = substream->runtime;
339         int err;
340
341         if (!chip) {
342                 printk(KERN_ERR "BUG: cx88 can't find device struct."
343                                 " Can't proceed with open\n");
344                 return -ENODEV;
345         }
346
347         err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS);
348         if (err < 0)
349                 goto _error;
350
351         chip->substream = substream;
352
353         runtime->hw = snd_cx88_digital_hw;
354
355         if (cx88_sram_channels[SRAM_CH25].fifo_size != DEFAULT_FIFO_SIZE) {
356                 unsigned int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4;
357                 bpl &= ~7; /* must be multiple of 8 */
358                 runtime->hw.period_bytes_min = bpl;
359                 runtime->hw.period_bytes_max = bpl;
360         }
361
362         return 0;
363 _error:
364         dprintk(1,"Error opening PCM!\n");
365         return err;
366 }
367
368 /*
369  * audio close callback
370  */
371 static int snd_cx88_close(struct snd_pcm_substream *substream)
372 {
373         return 0;
374 }
375
376 /*
377  * hw_params callback
378  */
379 static int snd_cx88_hw_params(struct snd_pcm_substream * substream,
380                               struct snd_pcm_hw_params * hw_params)
381 {
382         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
383         struct videobuf_dmabuf *dma;
384
385         struct cx88_audio_buffer *buf;
386         int ret;
387
388         if (substream->runtime->dma_area) {
389                 dsp_buffer_free(chip);
390                 substream->runtime->dma_area = NULL;
391         }
392
393         chip->period_size = params_period_bytes(hw_params);
394         chip->num_periods = params_periods(hw_params);
395         chip->dma_size = chip->period_size * params_periods(hw_params);
396
397         BUG_ON(!chip->dma_size);
398         BUG_ON(chip->num_periods & (chip->num_periods-1));
399
400         buf = kzalloc(sizeof(*buf), GFP_KERNEL);
401         if (NULL == buf)
402                 return -ENOMEM;
403
404         buf->bpl = chip->period_size;
405
406         dma = &buf->dma;
407         videobuf_dma_init(dma);
408         ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE,
409                         (PAGE_ALIGN(chip->dma_size) >> PAGE_SHIFT));
410         if (ret < 0)
411                 goto error;
412
413         ret = videobuf_dma_map(&chip->pci->dev, dma);
414         if (ret < 0)
415                 goto error;
416
417         ret = cx88_risc_databuffer(chip->pci, &buf->risc, dma->sglist,
418                                    chip->period_size, chip->num_periods, 1);
419         if (ret < 0)
420                 goto error;
421
422         /* Loop back to start of program */
423         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC);
424         buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
425
426         chip->buf = buf;
427         chip->dma_risc = dma;
428
429         substream->runtime->dma_area = chip->dma_risc->vaddr;
430         substream->runtime->dma_bytes = chip->dma_size;
431         substream->runtime->dma_addr = 0;
432         return 0;
433
434 error:
435         kfree(buf);
436         return ret;
437 }
438
439 /*
440  * hw free callback
441  */
442 static 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  * prepare callback
457  */
458 static int snd_cx88_prepare(struct snd_pcm_substream *substream)
459 {
460         return 0;
461 }
462
463 /*
464  * trigger callback
465  */
466 static 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         /* Local interrupts are already disabled by ALSA */
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  * pointer callback
493  */
494 static 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 //      dprintk(2, "%s - count %d (+%u), period %d, frame %lu\n", __func__,
503 //              count, new, count & (runtime->periods-1),
504 //              runtime->period_size * (count & (runtime->periods-1)));
505         return runtime->period_size * (count & (runtime->periods-1));
506 }
507
508 /*
509  * page callback (needed for mmap)
510  */
511 static 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  * operators
520  */
521 static 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  * create a PCM device
535  */
536 static 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                                 CONTROL INTERFACE
553  ****************************************************************************/
554 static 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
565 static 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 /* OK - TODO: test it */
581 static 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 left, right, v, b;
587         int changed = 0;
588         u32 old;
589
590         left = value->value.integer.value[0] & 0x3f;
591         right = value->value.integer.value[1] & 0x3f;
592         b = right - left;
593         if (b < 0) {
594             v = 0x3f - left;
595             b = (-b) | 0x40;
596         } else {
597             v = 0x3f - right;
598         }
599         /* Do we really know this will always be called with IRQs on? */
600         spin_lock_irq(&chip->reg_lock);
601         old = cx_read(AUD_VOL_CTL);
602         if (v != (old & 0x3f)) {
603             cx_write(AUD_VOL_CTL, (old & ~0x3f) | v);
604             changed = 1;
605         }
606         if (cx_read(AUD_BAL_CTL) != b) {
607             cx_write(AUD_BAL_CTL, b);
608             changed = 1;
609         }
610         spin_unlock_irq(&chip->reg_lock);
611
612         return changed;
613 }
614
615 static const DECLARE_TLV_DB_SCALE(snd_cx88_db_scale, -6300, 100, 0);
616
617 static struct snd_kcontrol_new snd_cx88_volume = {
618         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
619         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
620                   SNDRV_CTL_ELEM_ACCESS_TLV_READ,
621         .name = "Playback Volume",
622         .info = snd_cx88_volume_info,
623         .get = snd_cx88_volume_get,
624         .put = snd_cx88_volume_put,
625         .tlv.p = snd_cx88_db_scale,
626 };
627
628 static int snd_cx88_switch_get(struct snd_kcontrol *kcontrol,
629                                struct snd_ctl_elem_value *value)
630 {
631         snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
632         struct cx88_core *core = chip->core;
633         u32 bit = kcontrol->private_value;
634
635         value->value.integer.value[0] = !(cx_read(AUD_VOL_CTL) & bit);
636         return 0;
637 }
638
639 static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol,
640                                        struct snd_ctl_elem_value *value)
641 {
642         snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
643         struct cx88_core *core = chip->core;
644         u32 bit = kcontrol->private_value;
645         int ret = 0;
646         u32 vol;
647
648         spin_lock_irq(&chip->reg_lock);
649         vol = cx_read(AUD_VOL_CTL);
650         if (value->value.integer.value[0] != !(vol & bit)) {
651                 vol ^= bit;
652                 cx_write(AUD_VOL_CTL, vol);
653                 ret = 1;
654         }
655         spin_unlock_irq(&chip->reg_lock);
656         return ret;
657 }
658
659 static struct snd_kcontrol_new snd_cx88_dac_switch = {
660         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
661         .name = "Playback Switch",
662         .info = snd_ctl_boolean_mono_info,
663         .get = snd_cx88_switch_get,
664         .put = snd_cx88_switch_put,
665         .private_value = (1<<8),
666 };
667
668 static struct snd_kcontrol_new snd_cx88_source_switch = {
669         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
670         .name = "Capture Switch",
671         .info = snd_ctl_boolean_mono_info,
672         .get = snd_cx88_switch_get,
673         .put = snd_cx88_switch_put,
674         .private_value = (1<<6),
675 };
676
677 /****************************************************************************
678                         Basic Flow for Sound Devices
679  ****************************************************************************/
680
681 /*
682  * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio
683  * Only boards with eeprom and byte 1 at eeprom=1 have it
684  */
685
686 static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = {
687         {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
688         {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
689         {0, }
690 };
691 MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl);
692
693 /*
694  * Chip-specific destructor
695  */
696
697 static int snd_cx88_free(snd_cx88_card_t *chip)
698 {
699
700         if (chip->irq >= 0)
701                 free_irq(chip->irq, chip);
702
703         cx88_core_put(chip->core,chip->pci);
704
705         pci_disable_device(chip->pci);
706         return 0;
707 }
708
709 /*
710  * Component Destructor
711  */
712 static void snd_cx88_dev_free(struct snd_card * card)
713 {
714         snd_cx88_card_t *chip = card->private_data;
715
716         snd_cx88_free(chip);
717 }
718
719
720 /*
721  * Alsa Constructor - Component probe
722  */
723
724 static int devno;
725 static int __devinit snd_cx88_create(struct snd_card *card,
726                                      struct pci_dev *pci,
727                                      snd_cx88_card_t **rchip)
728 {
729         snd_cx88_card_t   *chip;
730         struct cx88_core  *core;
731         int               err;
732         unsigned char     pci_lat;
733
734         *rchip = NULL;
735
736         err = pci_enable_device(pci);
737         if (err < 0)
738                 return err;
739
740         pci_set_master(pci);
741
742         chip = (snd_cx88_card_t *) card->private_data;
743
744         core = cx88_core_get(pci);
745         if (NULL == core) {
746                 err = -EINVAL;
747                 return err;
748         }
749
750         if (!pci_dma_supported(pci,DMA_BIT_MASK(32))) {
751                 dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
752                 err = -EIO;
753                 cx88_core_put(core,pci);
754                 return err;
755         }
756
757
758         /* pci init */
759         chip->card = card;
760         chip->pci = pci;
761         chip->irq = -1;
762         spin_lock_init(&chip->reg_lock);
763
764         chip->core = core;
765
766         /* get irq */
767         err = request_irq(chip->pci->irq, cx8801_irq,
768                           IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip);
769         if (err < 0) {
770                 dprintk(0, "%s: can't get IRQ %d\n",
771                        chip->core->name, chip->pci->irq);
772                 return err;
773         }
774
775         /* print pci info */
776         pci_read_config_byte(pci, PCI_LATENCY_TIMER, &pci_lat);
777
778         dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, "
779                "latency: %d, mmio: 0x%llx\n", core->name, devno,
780                pci_name(pci), pci->revision, pci->irq,
781                pci_lat, (unsigned long long)pci_resource_start(pci,0));
782
783         chip->irq = pci->irq;
784         synchronize_irq(chip->irq);
785
786         snd_card_set_dev(card, &pci->dev);
787
788         *rchip = chip;
789
790         return 0;
791 }
792
793 static int __devinit cx88_audio_initdev(struct pci_dev *pci,
794                                     const struct pci_device_id *pci_id)
795 {
796         struct snd_card  *card;
797         snd_cx88_card_t  *chip;
798         int              err;
799
800         if (devno >= SNDRV_CARDS)
801                 return (-ENODEV);
802
803         if (!enable[devno]) {
804                 ++devno;
805                 return (-ENOENT);
806         }
807
808         err = snd_card_create(index[devno], id[devno], THIS_MODULE,
809                               sizeof(snd_cx88_card_t), &card);
810         if (err < 0)
811                 return err;
812
813         card->private_free = snd_cx88_dev_free;
814
815         err = snd_cx88_create(card, pci, &chip);
816         if (err < 0)
817                 goto error;
818
819         err = snd_cx88_pcm(chip, 0, "CX88 Digital");
820         if (err < 0)
821                 goto error;
822
823         err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_volume, chip));
824         if (err < 0)
825                 goto error;
826         err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_dac_switch, chip));
827         if (err < 0)
828                 goto error;
829         err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_source_switch, chip));
830         if (err < 0)
831                 goto error;
832
833         strcpy (card->driver, "CX88x");
834         sprintf(card->shortname, "Conexant CX%x", pci->device);
835         sprintf(card->longname, "%s at %#llx",
836                 card->shortname,(unsigned long long)pci_resource_start(pci, 0));
837         strcpy (card->mixername, "CX88");
838
839         dprintk (0, "%s/%i: ALSA support for cx2388x boards\n",
840                card->driver,devno);
841
842         err = snd_card_register(card);
843         if (err < 0)
844                 goto error;
845         pci_set_drvdata(pci,card);
846
847         devno++;
848         return 0;
849
850 error:
851         snd_card_free(card);
852         return err;
853 }
854 /*
855  * ALSA destructor
856  */
857 static void __devexit cx88_audio_finidev(struct pci_dev *pci)
858 {
859         struct cx88_audio_dev *card = pci_get_drvdata(pci);
860
861         snd_card_free((void *)card);
862
863         pci_set_drvdata(pci, NULL);
864
865         devno--;
866 }
867
868 /*
869  * PCI driver definition
870  */
871
872 static struct pci_driver cx88_audio_pci_driver = {
873         .name     = "cx88_audio",
874         .id_table = cx88_audio_pci_tbl,
875         .probe    = cx88_audio_initdev,
876         .remove   = __devexit_p(cx88_audio_finidev),
877 };
878
879 /****************************************************************************
880                                 LINUX MODULE INIT
881  ****************************************************************************/
882
883 /*
884  * module init
885  */
886 static int __init cx88_audio_init(void)
887 {
888         printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n",
889                (CX88_VERSION_CODE >> 16) & 0xff,
890                (CX88_VERSION_CODE >>  8) & 0xff,
891                CX88_VERSION_CODE & 0xff);
892 #ifdef SNAPSHOT
893         printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
894                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
895 #endif
896         return pci_register_driver(&cx88_audio_pci_driver);
897 }
898
899 /*
900  * module remove
901  */
902 static void __exit cx88_audio_fini(void)
903 {
904         pci_unregister_driver(&cx88_audio_pci_driver);
905 }
906
907 module_init(cx88_audio_init);
908 module_exit(cx88_audio_fini);
909
910 /* ----------------------------------------------------------- */
911 /*
912  * Local variables:
913  * c-basic-offset: 8
914  * End:
915  */