V4L/DVB (7521): media/video/cx88 replace remaining __FUNCTION__ occurrences
[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
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         Data type declarations - Can be moded to a header file later
54  ****************************************************************************/
55
56 struct cx88_audio_dev {
57         struct cx88_core           *core;
58         struct cx88_dmaqueue       q;
59
60         /* pci i/o */
61         struct pci_dev             *pci;
62
63         /* audio controls */
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 };
81 typedef struct cx88_audio_dev snd_cx88_card_t;
82
83
84
85
86 /****************************************************************************
87                         Module global static vars
88  ****************************************************************************/
89
90 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
91 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
92 static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1};
93
94 module_param_array(enable, bool, NULL, 0444);
95 MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled.");
96
97 module_param_array(index, int, NULL, 0444);
98 MODULE_PARM_DESC(index, "Index value for cx88x capture interface(s).");
99
100
101 /****************************************************************************
102                                 Module macros
103  ****************************************************************************/
104
105 MODULE_DESCRIPTION("ALSA driver module for cx2388x based TV cards");
106 MODULE_AUTHOR("Ricardo Cerqueira");
107 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
108 MODULE_LICENSE("GPL");
109 MODULE_SUPPORTED_DEVICE("{{Conexant,23881},"
110                         "{{Conexant,23882},"
111                         "{{Conexant,23883}");
112 static unsigned int debug;
113 module_param(debug,int,0644);
114 MODULE_PARM_DESC(debug,"enable debug messages");
115
116 /****************************************************************************
117                         Module specific funtions
118  ****************************************************************************/
119
120 /*
121  * BOARD Specific: Sets audio DMA
122  */
123
124 static int _cx88_start_audio_dma(snd_cx88_card_t *chip)
125 {
126         struct cx88_buffer   *buf = chip->buf;
127         struct cx88_core *core=chip->core;
128         struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25];
129
130         /* Make sure RISC/FIFO are off before changing FIFO/RISC settings */
131         cx_clear(MO_AUD_DMACNTRL, 0x11);
132
133         /* setup fifo + format - out channel */
134         cx88_sram_channel_setup(chip->core, audio_ch, buf->bpl, buf->risc.dma);
135
136         /* sets bpl size */
137         cx_write(MO_AUDD_LNGTH, buf->bpl);
138
139         /* reset counter */
140         cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET);
141         atomic_set(&chip->count, 0);
142
143         dprintk(1, "Start audio DMA, %d B/line, %d lines/FIFO, %d periods, %d "
144                 "byte buffer\n", buf->bpl, cx_read(audio_ch->cmds_start + 8)>>1,
145                 chip->num_periods, buf->bpl * chip->num_periods);
146
147         /* Enables corresponding bits at AUD_INT_STAT */
148         cx_write(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC |
149                                 AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1);
150
151         /* Clean any pending interrupt bits already set */
152         cx_write(MO_AUD_INTSTAT, ~0);
153
154         /* enable audio irqs */
155         cx_set(MO_PCI_INTMSK, chip->core->pci_irqmask | PCI_INT_AUDINT);
156
157         /* start dma */
158         cx_set(MO_DEV_CNTRL2, (1<<5)); /* Enables Risc Processor */
159         cx_set(MO_AUD_DMACNTRL, 0x11); /* audio downstream FIFO and RISC enable */
160
161         if (debug)
162                 cx88_sram_channel_dump(chip->core, audio_ch);
163
164         return 0;
165 }
166
167 /*
168  * BOARD Specific: Resets audio DMA
169  */
170 static int _cx88_stop_audio_dma(snd_cx88_card_t *chip)
171 {
172         struct cx88_core *core=chip->core;
173         dprintk(1, "Stopping audio DMA\n");
174
175         /* stop dma */
176         cx_clear(MO_AUD_DMACNTRL, 0x11);
177
178         /* disable irqs */
179         cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT);
180         cx_clear(MO_AUD_INTMSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC |
181                                 AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1);
182
183         if (debug)
184                 cx88_sram_channel_dump(chip->core, &cx88_sram_channels[SRAM_CH25]);
185
186         return 0;
187 }
188
189 #define MAX_IRQ_LOOP 50
190
191 /*
192  * BOARD Specific: IRQ dma bits
193  */
194 static char *cx88_aud_irqs[32] = {
195         "dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */
196         NULL,                                     /* reserved */
197         "dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */
198         NULL,                                     /* reserved */
199         "dnf_of", "upf_uf", "rds_dnf_uf",         /* 8-10 */
200         NULL,                                     /* reserved */
201         "dn_sync", "up_sync", "rds_dn_sync",      /* 12-14 */
202         NULL,                                     /* reserved */
203         "opc_err", "par_err", "rip_err",          /* 16-18 */
204         "pci_abort", "ber_irq", "mchg_irq"        /* 19-21 */
205 };
206
207 /*
208  * BOARD Specific: Threats IRQ audio specific calls
209  */
210 static void cx8801_aud_irq(snd_cx88_card_t *chip)
211 {
212         struct cx88_core *core = chip->core;
213         u32 status, mask;
214
215         status = cx_read(MO_AUD_INTSTAT);
216         mask   = cx_read(MO_AUD_INTMSK);
217         if (0 == (status & mask))
218                 return;
219         cx_write(MO_AUD_INTSTAT, status);
220         if (debug > 1  ||  (status & mask & ~0xff))
221                 cx88_print_irqbits(core->name, "irq aud",
222                                    cx88_aud_irqs, ARRAY_SIZE(cx88_aud_irqs),
223                                    status, mask);
224         /* risc op code error */
225         if (status & AUD_INT_OPC_ERR) {
226                 printk(KERN_WARNING "%s/1: Audio risc op code error\n",core->name);
227                 cx_clear(MO_AUD_DMACNTRL, 0x11);
228                 cx88_sram_channel_dump(core, &cx88_sram_channels[SRAM_CH25]);
229         }
230         if (status & AUD_INT_DN_SYNC) {
231                 dprintk(1, "Downstream sync error\n");
232                 cx_write(MO_AUDD_GPCNTRL, GP_COUNT_CONTROL_RESET);
233                 return;
234         }
235         /* risc1 downstream */
236         if (status & AUD_INT_DN_RISCI1) {
237                 atomic_set(&chip->count, cx_read(MO_AUDD_GPCNT));
238                 snd_pcm_period_elapsed(chip->substream);
239         }
240         /* FIXME: Any other status should deserve a special handling? */
241 }
242
243 /*
244  * BOARD Specific: Handles IRQ calls
245  */
246 static irqreturn_t cx8801_irq(int irq, void *dev_id)
247 {
248         snd_cx88_card_t *chip = dev_id;
249         struct cx88_core *core = chip->core;
250         u32 status;
251         int loop, handled = 0;
252
253         for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
254                 status = cx_read(MO_PCI_INTSTAT) &
255                         (core->pci_irqmask | PCI_INT_AUDINT);
256                 if (0 == status)
257                         goto out;
258                 dprintk(3, "cx8801_irq loop %d/%d, status %x\n",
259                         loop, MAX_IRQ_LOOP, status);
260                 handled = 1;
261                 cx_write(MO_PCI_INTSTAT, status);
262
263                 if (status & core->pci_irqmask)
264                         cx88_core_irq(core, status);
265                 if (status & PCI_INT_AUDINT)
266                         cx8801_aud_irq(chip);
267         }
268
269         if (MAX_IRQ_LOOP == loop) {
270                 printk(KERN_ERR
271                        "%s/1: IRQ loop detected, disabling interrupts\n",
272                        core->name);
273                 cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT);
274         }
275
276  out:
277         return IRQ_RETVAL(handled);
278 }
279
280
281 static int dsp_buffer_free(snd_cx88_card_t *chip)
282 {
283         BUG_ON(!chip->dma_size);
284
285         dprintk(2,"Freeing buffer\n");
286         videobuf_sg_dma_unmap(&chip->pci->dev, chip->dma_risc);
287         videobuf_dma_free(chip->dma_risc);
288         btcx_riscmem_free(chip->pci,&chip->buf->risc);
289         kfree(chip->buf);
290
291         chip->dma_risc = NULL;
292         chip->dma_size = 0;
293
294         return 0;
295 }
296
297 /****************************************************************************
298                                 ALSA PCM Interface
299  ****************************************************************************/
300
301 /*
302  * Digital hardware definition
303  */
304 #define DEFAULT_FIFO_SIZE       4096
305 static struct snd_pcm_hardware snd_cx88_digital_hw = {
306         .info = SNDRV_PCM_INFO_MMAP |
307                 SNDRV_PCM_INFO_INTERLEAVED |
308                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
309                 SNDRV_PCM_INFO_MMAP_VALID,
310         .formats = SNDRV_PCM_FMTBIT_S16_LE,
311
312         .rates =                SNDRV_PCM_RATE_48000,
313         .rate_min =             48000,
314         .rate_max =             48000,
315         .channels_min = 2,
316         .channels_max = 2,
317         /* Analog audio output will be full of clicks and pops if there
318            are not exactly four lines in the SRAM FIFO buffer.  */
319         .period_bytes_min = DEFAULT_FIFO_SIZE/4,
320         .period_bytes_max = DEFAULT_FIFO_SIZE/4,
321         .periods_min = 1,
322         .periods_max = 1024,
323         .buffer_bytes_max = (1024*1024),
324 };
325
326 /*
327  * audio pcm capture open callback
328  */
329 static int snd_cx88_pcm_open(struct snd_pcm_substream *substream)
330 {
331         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
332         struct snd_pcm_runtime *runtime = substream->runtime;
333         int err;
334
335         err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS);
336         if (err < 0)
337                 goto _error;
338
339         chip->substream = substream;
340
341         runtime->hw = snd_cx88_digital_hw;
342
343         if (cx88_sram_channels[SRAM_CH25].fifo_size != DEFAULT_FIFO_SIZE) {
344                 unsigned int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4;
345                 bpl &= ~7; /* must be multiple of 8 */
346                 runtime->hw.period_bytes_min = bpl;
347                 runtime->hw.period_bytes_max = bpl;
348         }
349
350         return 0;
351 _error:
352         dprintk(1,"Error opening PCM!\n");
353         return err;
354 }
355
356 /*
357  * audio close callback
358  */
359 static int snd_cx88_close(struct snd_pcm_substream *substream)
360 {
361         return 0;
362 }
363
364 /*
365  * hw_params callback
366  */
367 static int snd_cx88_hw_params(struct snd_pcm_substream * substream,
368                               struct snd_pcm_hw_params * hw_params)
369 {
370         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
371         struct videobuf_dmabuf *dma;
372
373         struct cx88_buffer *buf;
374         int ret;
375
376         if (substream->runtime->dma_area) {
377                 dsp_buffer_free(chip);
378                 substream->runtime->dma_area = NULL;
379         }
380
381         chip->period_size = params_period_bytes(hw_params);
382         chip->num_periods = params_periods(hw_params);
383         chip->dma_size = chip->period_size * params_periods(hw_params);
384
385         BUG_ON(!chip->dma_size);
386         BUG_ON(chip->num_periods & (chip->num_periods-1));
387
388         buf = videobuf_sg_alloc(sizeof(*buf));
389         if (NULL == buf)
390                 return -ENOMEM;
391
392         buf->vb.memory = V4L2_MEMORY_MMAP;
393         buf->vb.field  = V4L2_FIELD_NONE;
394         buf->vb.width  = chip->period_size;
395         buf->bpl       = chip->period_size;
396         buf->vb.height = chip->num_periods;
397         buf->vb.size   = chip->dma_size;
398
399         dma = videobuf_to_dma(&buf->vb);
400         videobuf_dma_init(dma);
401         ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE,
402                         (PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT));
403         if (ret < 0)
404                 goto error;
405
406         ret = videobuf_sg_dma_map(&chip->pci->dev, dma);
407         if (ret < 0)
408                 goto error;
409
410         ret = cx88_risc_databuffer(chip->pci, &buf->risc, dma->sglist,
411                                    buf->vb.width, buf->vb.height, 1);
412         if (ret < 0)
413                 goto error;
414
415         /* Loop back to start of program */
416         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC);
417         buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
418
419         buf->vb.state = VIDEOBUF_PREPARED;
420
421         chip->buf = buf;
422         chip->dma_risc = dma;
423
424         substream->runtime->dma_area = chip->dma_risc->vmalloc;
425         substream->runtime->dma_bytes = chip->dma_size;
426         substream->runtime->dma_addr = 0;
427         return 0;
428
429 error:
430         kfree(buf);
431         return ret;
432 }
433
434 /*
435  * hw free callback
436  */
437 static int snd_cx88_hw_free(struct snd_pcm_substream * substream)
438 {
439
440         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
441
442         if (substream->runtime->dma_area) {
443                 dsp_buffer_free(chip);
444                 substream->runtime->dma_area = NULL;
445         }
446
447         return 0;
448 }
449
450 /*
451  * prepare callback
452  */
453 static int snd_cx88_prepare(struct snd_pcm_substream *substream)
454 {
455         return 0;
456 }
457
458 /*
459  * trigger callback
460  */
461 static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd)
462 {
463         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
464         int err;
465
466         /* Local interrupts are already disabled by ALSA */
467         spin_lock(&chip->reg_lock);
468
469         switch (cmd) {
470         case SNDRV_PCM_TRIGGER_START:
471                 err=_cx88_start_audio_dma(chip);
472                 break;
473         case SNDRV_PCM_TRIGGER_STOP:
474                 err=_cx88_stop_audio_dma(chip);
475                 break;
476         default:
477                 err=-EINVAL;
478                 break;
479         }
480
481         spin_unlock(&chip->reg_lock);
482
483         return err;
484 }
485
486 /*
487  * pointer callback
488  */
489 static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream)
490 {
491         snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
492         struct snd_pcm_runtime *runtime = substream->runtime;
493         u16 count;
494
495         count = atomic_read(&chip->count);
496
497 //      dprintk(2, "%s - count %d (+%u), period %d, frame %lu\n", __func__,
498 //              count, new, count & (runtime->periods-1),
499 //              runtime->period_size * (count & (runtime->periods-1)));
500         return runtime->period_size * (count & (runtime->periods-1));
501 }
502
503 /*
504  * page callback (needed for mmap)
505  */
506 static struct page *snd_cx88_page(struct snd_pcm_substream *substream,
507                                 unsigned long offset)
508 {
509         void *pageptr = substream->runtime->dma_area + offset;
510         return vmalloc_to_page(pageptr);
511 }
512
513 /*
514  * operators
515  */
516 static struct snd_pcm_ops snd_cx88_pcm_ops = {
517         .open = snd_cx88_pcm_open,
518         .close = snd_cx88_close,
519         .ioctl = snd_pcm_lib_ioctl,
520         .hw_params = snd_cx88_hw_params,
521         .hw_free = snd_cx88_hw_free,
522         .prepare = snd_cx88_prepare,
523         .trigger = snd_cx88_card_trigger,
524         .pointer = snd_cx88_pointer,
525         .page = snd_cx88_page,
526 };
527
528 /*
529  * create a PCM device
530  */
531 static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name)
532 {
533         int err;
534         struct snd_pcm *pcm;
535
536         err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
537         if (err < 0)
538                 return err;
539         pcm->private_data = chip;
540         strcpy(pcm->name, name);
541         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx88_pcm_ops);
542
543         return 0;
544 }
545
546 /****************************************************************************
547                                 CONTROL INTERFACE
548  ****************************************************************************/
549 static int snd_cx88_volume_info(struct snd_kcontrol *kcontrol,
550                                 struct snd_ctl_elem_info *info)
551 {
552         info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
553         info->count = 2;
554         info->value.integer.min = 0;
555         info->value.integer.max = 0x3f;
556
557         return 0;
558 }
559
560 static int snd_cx88_volume_get(struct snd_kcontrol *kcontrol,
561                                struct snd_ctl_elem_value *value)
562 {
563         snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
564         struct cx88_core *core=chip->core;
565         int vol = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f),
566             bal = cx_read(AUD_BAL_CTL);
567
568         value->value.integer.value[(bal & 0x40) ? 0 : 1] = vol;
569         vol -= (bal & 0x3f);
570         value->value.integer.value[(bal & 0x40) ? 1 : 0] = vol < 0 ? 0 : vol;
571
572         return 0;
573 }
574
575 /* OK - TODO: test it */
576 static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol,
577                                struct snd_ctl_elem_value *value)
578 {
579         snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
580         struct cx88_core *core=chip->core;
581         int v, b;
582         int changed = 0;
583         u32 old;
584
585         b = value->value.integer.value[1] - value->value.integer.value[0];
586         if (b < 0) {
587             v = 0x3f - value->value.integer.value[0];
588             b = (-b) | 0x40;
589         } else {
590             v = 0x3f - value->value.integer.value[1];
591         }
592         /* Do we really know this will always be called with IRQs on? */
593         spin_lock_irq(&chip->reg_lock);
594         old = cx_read(AUD_VOL_CTL);
595         if (v != (old & 0x3f)) {
596             cx_write(AUD_VOL_CTL, (old & ~0x3f) | v);
597             changed = 1;
598         }
599         if (cx_read(AUD_BAL_CTL) != b) {
600             cx_write(AUD_BAL_CTL, b);
601             changed = 1;
602         }
603         spin_unlock_irq(&chip->reg_lock);
604
605         return changed;
606 }
607
608 static const DECLARE_TLV_DB_SCALE(snd_cx88_db_scale, -6300, 100, 0);
609
610 static struct snd_kcontrol_new snd_cx88_volume = {
611         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
612         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
613                   SNDRV_CTL_ELEM_ACCESS_TLV_READ,
614         .name = "Playback Volume",
615         .info = snd_cx88_volume_info,
616         .get = snd_cx88_volume_get,
617         .put = snd_cx88_volume_put,
618         .tlv.p = snd_cx88_db_scale,
619 };
620
621 static int snd_cx88_switch_get(struct snd_kcontrol *kcontrol,
622                                struct snd_ctl_elem_value *value)
623 {
624         snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
625         struct cx88_core *core = chip->core;
626         u32 bit = kcontrol->private_value;
627
628         value->value.integer.value[0] = !(cx_read(AUD_VOL_CTL) & bit);
629         return 0;
630 }
631
632 static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol,
633                                        struct snd_ctl_elem_value *value)
634 {
635         snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
636         struct cx88_core *core = chip->core;
637         u32 bit = kcontrol->private_value;
638         int ret = 0;
639         u32 vol;
640
641         spin_lock_irq(&chip->reg_lock);
642         vol = cx_read(AUD_VOL_CTL);
643         if (value->value.integer.value[0] != !(vol & bit)) {
644                 vol ^= bit;
645                 cx_write(AUD_VOL_CTL, vol);
646                 ret = 1;
647         }
648         spin_unlock_irq(&chip->reg_lock);
649         return ret;
650 }
651
652 static struct snd_kcontrol_new snd_cx88_dac_switch = {
653         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
654         .name = "Playback Switch",
655         .info = snd_ctl_boolean_mono_info,
656         .get = snd_cx88_switch_get,
657         .put = snd_cx88_switch_put,
658         .private_value = (1<<8),
659 };
660
661 static struct snd_kcontrol_new snd_cx88_source_switch = {
662         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
663         .name = "Capture Switch",
664         .info = snd_ctl_boolean_mono_info,
665         .get = snd_cx88_switch_get,
666         .put = snd_cx88_switch_put,
667         .private_value = (1<<6),
668 };
669
670 /****************************************************************************
671                         Basic Flow for Sound Devices
672  ****************************************************************************/
673
674 /*
675  * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio
676  * Only boards with eeprom and byte 1 at eeprom=1 have it
677  */
678
679 static struct pci_device_id cx88_audio_pci_tbl[] __devinitdata = {
680         {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
681         {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
682         {0, }
683 };
684 MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl);
685
686 /*
687  * Chip-specific destructor
688  */
689
690 static int snd_cx88_free(snd_cx88_card_t *chip)
691 {
692
693         if (chip->irq >= 0){
694                 synchronize_irq(chip->irq);
695                 free_irq(chip->irq, chip);
696         }
697
698         cx88_core_put(chip->core,chip->pci);
699
700         pci_disable_device(chip->pci);
701         return 0;
702 }
703
704 /*
705  * Component Destructor
706  */
707 static void snd_cx88_dev_free(struct snd_card * card)
708 {
709         snd_cx88_card_t *chip = card->private_data;
710
711         snd_cx88_free(chip);
712 }
713
714
715 /*
716  * Alsa Constructor - Component probe
717  */
718
719 static int devno;
720 static int __devinit snd_cx88_create(struct snd_card *card,
721                                      struct pci_dev *pci,
722                                      snd_cx88_card_t **rchip)
723 {
724         snd_cx88_card_t   *chip;
725         struct cx88_core  *core;
726         int               err;
727         unsigned char     pci_lat;
728
729         *rchip = NULL;
730
731         err = pci_enable_device(pci);
732         if (err < 0)
733                 return err;
734
735         pci_set_master(pci);
736
737         chip = (snd_cx88_card_t *) card->private_data;
738
739         core = cx88_core_get(pci);
740         if (NULL == core) {
741                 err = -EINVAL;
742                 kfree (chip);
743                 return err;
744         }
745
746         if (!pci_dma_supported(pci,DMA_32BIT_MASK)) {
747                 dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
748                 err = -EIO;
749                 cx88_core_put(core,pci);
750                 return err;
751         }
752
753
754         /* pci init */
755         chip->card = card;
756         chip->pci = pci;
757         chip->irq = -1;
758         spin_lock_init(&chip->reg_lock);
759
760         chip->core = core;
761
762         /* get irq */
763         err = request_irq(chip->pci->irq, cx8801_irq,
764                           IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip);
765         if (err < 0) {
766                 dprintk(0, "%s: can't get IRQ %d\n",
767                        chip->core->name, chip->pci->irq);
768                 return err;
769         }
770
771         /* print pci info */
772         pci_read_config_byte(pci, PCI_LATENCY_TIMER, &pci_lat);
773
774         dprintk(1,"ALSA %s/%i: found at %s, rev: %d, irq: %d, "
775                "latency: %d, mmio: 0x%llx\n", core->name, devno,
776                pci_name(pci), pci->revision, pci->irq,
777                pci_lat, (unsigned long long)pci_resource_start(pci,0));
778
779         chip->irq = pci->irq;
780         synchronize_irq(chip->irq);
781
782         snd_card_set_dev(card, &pci->dev);
783
784         *rchip = chip;
785
786         return 0;
787 }
788
789 static int __devinit cx88_audio_initdev(struct pci_dev *pci,
790                                     const struct pci_device_id *pci_id)
791 {
792         struct snd_card  *card;
793         snd_cx88_card_t  *chip;
794         int              err;
795
796         if (devno >= SNDRV_CARDS)
797                 return (-ENODEV);
798
799         if (!enable[devno]) {
800                 ++devno;
801                 return (-ENOENT);
802         }
803
804         card = snd_card_new(index[devno], id[devno], THIS_MODULE, sizeof(snd_cx88_card_t));
805         if (!card)
806                 return (-ENOMEM);
807
808         card->private_free = snd_cx88_dev_free;
809
810         err = snd_cx88_create(card, pci, &chip);
811         if (err < 0)
812                 return (err);
813
814         err = snd_cx88_pcm(chip, 0, "CX88 Digital");
815         if (err < 0)
816                 goto error;
817
818         err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_volume, chip));
819         if (err < 0)
820                 goto error;
821         err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_dac_switch, chip));
822         if (err < 0)
823                 goto error;
824         err = snd_ctl_add(card, snd_ctl_new1(&snd_cx88_source_switch, chip));
825         if (err < 0)
826                 goto error;
827
828         strcpy (card->driver, "CX88x");
829         sprintf(card->shortname, "Conexant CX%x", pci->device);
830         sprintf(card->longname, "%s at %#llx",
831                 card->shortname,(unsigned long long)pci_resource_start(pci, 0));
832         strcpy (card->mixername, "CX88");
833
834         dprintk (0, "%s/%i: ALSA support for cx2388x boards\n",
835                card->driver,devno);
836
837         err = snd_card_register(card);
838         if (err < 0)
839                 goto error;
840         pci_set_drvdata(pci,card);
841
842         devno++;
843         return 0;
844
845 error:
846         snd_card_free(card);
847         return err;
848 }
849 /*
850  * ALSA destructor
851  */
852 static void __devexit cx88_audio_finidev(struct pci_dev *pci)
853 {
854         struct cx88_audio_dev *card = pci_get_drvdata(pci);
855
856         snd_card_free((void *)card);
857
858         pci_set_drvdata(pci, NULL);
859
860         devno--;
861 }
862
863 /*
864  * PCI driver definition
865  */
866
867 static struct pci_driver cx88_audio_pci_driver = {
868         .name     = "cx88_audio",
869         .id_table = cx88_audio_pci_tbl,
870         .probe    = cx88_audio_initdev,
871         .remove   = cx88_audio_finidev,
872 };
873
874 /****************************************************************************
875                                 LINUX MODULE INIT
876  ****************************************************************************/
877
878 /*
879  * module init
880  */
881 static int cx88_audio_init(void)
882 {
883         printk(KERN_INFO "cx2388x alsa driver version %d.%d.%d loaded\n",
884                (CX88_VERSION_CODE >> 16) & 0xff,
885                (CX88_VERSION_CODE >>  8) & 0xff,
886                CX88_VERSION_CODE & 0xff);
887 #ifdef SNAPSHOT
888         printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
889                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
890 #endif
891         return pci_register_driver(&cx88_audio_pci_driver);
892 }
893
894 /*
895  * module remove
896  */
897 static void cx88_audio_fini(void)
898 {
899
900         pci_unregister_driver(&cx88_audio_pci_driver);
901 }
902
903 module_init(cx88_audio_init);
904 module_exit(cx88_audio_fini);
905
906 /* ----------------------------------------------------------- */
907 /*
908  * Local variables:
909  * c-basic-offset: 8
910  * End:
911  */