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1/*
2 * cmpci.c -- C-Media PCI audio driver.
3 *
4 * Copyright (C) 1999 C-media support (support@cmedia.com.tw)
5 *
6 * Based on the PCI drivers by Thomas Sailer (sailer@ife.ee.ethz.ch)
7 *
8 * For update, visit:
9 * http://www.cmedia.com.tw
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 * Special thanks to David C. Niemi, Jan Pfeifer
26 *
27 *
28 * Module command line parameters:
29 * none so far
30 *
31 *
32 * Supported devices:
33 * /dev/dsp standard /dev/dsp device, (mostly) OSS compatible
34 * /dev/mixer standard /dev/mixer device, (mostly) OSS compatible
35 * /dev/midi simple MIDI UART interface, no ioctl
36 *
37 * The card has both an FM and a Wavetable synth, but I have to figure
38 * out first how to drive them...
39 *
40 * Revision history
41 * 06.05.98 0.1 Initial release
42 * 10.05.98 0.2 Fixed many bugs, esp. ADC rate calculation
43 * First stab at a simple midi interface (no bells&whistles)
44 * 13.05.98 0.3 Fix stupid cut&paste error: set_adc_rate was called instead of
45 * set_dac_rate in the FMODE_WRITE case in cm_open
46 * Fix hwptr out of bounds (now mpg123 works)
47 * 14.05.98 0.4 Don't allow excessive interrupt rates
48 * 08.06.98 0.5 First release using Alan Cox' soundcore instead of miscdevice
49 * 03.08.98 0.6 Do not include modversions.h
50 * Now mixer behaviour can basically be selected between
51 * "OSS documented" and "OSS actual" behaviour
52 * 31.08.98 0.7 Fix realplayer problems - dac.count issues
53 * 10.12.98 0.8 Fix drain_dac trying to wait on not yet initialized DMA
54 * 16.12.98 0.9 Fix a few f_file & FMODE_ bugs
55 * 06.01.99 0.10 remove the silly SA_INTERRUPT flag.
56 * hopefully killed the egcs section type conflict
57 * 12.03.99 0.11 cinfo.blocks should be reset after GETxPTR ioctl.
58 * reported by Johan Maes <joma@telindus.be>
59 * 22.03.99 0.12 return EAGAIN instead of EBUSY when O_NONBLOCK
60 * read/write cannot be executed
61 * 18.08.99 1.5 Only deallocate DMA buffer when unloading.
62 * 02.09.99 1.6 Enable SPDIF LOOP
63 * Change the mixer read back
64 * 21.09.99 2.33 Use RCS version as driver version.
65 * Add support for modem, S/PDIF loop and 4 channels.
66 * (8738 only)
67 * Fix bug cause x11amp cannot play.
68 *
69 * Fixes:
70 * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
71 * 18/05/2001 - .bss nitpicks, fix a bug in set_dac_channels where it
72 * was calling prog_dmabuf with s->lock held, call missing
73 * unlock_kernel in cm_midi_release
74 * 08/10/2001 - use set_current_state in some more places
75 *
76 * Carlos Eduardo Gorges <carlos@techlinux.com.br>
77 * Fri May 25 2001
78 * - SMP support ( spin[un]lock* revision )
79 * - speaker mixer support
80 * Mon Aug 13 2001
81 * - optimizations and cleanups
82 *
83 * 03/01/2003 - open_mode fixes from Georg Acher <acher@in.tum.de>
84 * Simon Braunschmidt <brasimon@web.de>
85 * Sat Jan 31 2004
86 * - provide support for opl3 FM by releasing IO range after initialization
87 *
88 * ChenLi Tien <cltien@cmedia.com.tw>
89 * Mar 9 2004
90 * - Fix S/PDIF out if spdif_loop enabled
91 * - Load opl3 driver if enabled (fmio in proper range)
92 * - Load mpu401 if enabled (mpuio in proper range)
93 * Apr 5 2004
94 * - Fix DUAL_DAC dma synchronization bug
95 * - Check exist FM/MPU401 I/O before activate.
96 * - Add AFTM_S16_BE format support, so MPlayer/Xine can play AC3/mutlichannel
97 * on Mac
98 * - Change to support kernel 2.6 so only small patch needed
99 * - All parameters default to 0
100 * - Add spdif_out to send PCM through S/PDIF out jack
101 * - Add hw_copy to get 4-spaker output for general PCM/analog output
102 *
103 * Stefan Thater <stefan.thaeter@gmx.de>
104 * Apr 5 2004
105 * - Fix mute single channel for CD/Line-in/AUX-in
106 */
107/*****************************************************************************/
108
109#include <linux/config.h>
110#include <linux/module.h>
111#include <linux/string.h>
112#include <linux/interrupt.h>
113#include <linux/ioport.h>
114#include <linux/sched.h>
115#include <linux/delay.h>
116#include <linux/sound.h>
117#include <linux/slab.h>
118#include <linux/soundcard.h>
119#include <linux/pci.h>
120#include <linux/init.h>
121#include <linux/poll.h>
122#include <linux/spinlock.h>
123#include <linux/smp_lock.h>
124#include <linux/bitops.h>
125#include <linux/wait.h>
126
127#include <asm/io.h>
128#include <asm/page.h>
129#include <asm/uaccess.h>
130
131#ifdef CONFIG_SOUND_CMPCI_MIDI
132#include "sound_config.h"
133#include "mpu401.h"
134#endif
135#ifdef CONFIG_SOUND_CMPCI_FM
136#include "opl3.h"
137#endif
138#ifdef CONFIG_SOUND_CMPCI_JOYSTICK
139#include <linux/gameport.h>
140#endif
141
142/* --------------------------------------------------------------------- */
143#undef OSS_DOCUMENTED_MIXER_SEMANTICS
144#undef DMABYTEIO
145#define DBG(x) {}
146/* --------------------------------------------------------------------- */
147
148#define CM_MAGIC ((PCI_VENDOR_ID_CMEDIA<<16)|PCI_DEVICE_ID_CMEDIA_CM8338A)
149
150/* CM8338 registers definition ****************/
151
152#define CODEC_CMI_FUNCTRL0 (0x00)
153#define CODEC_CMI_FUNCTRL1 (0x04)
154#define CODEC_CMI_CHFORMAT (0x08)
155#define CODEC_CMI_INT_HLDCLR (0x0C)
156#define CODEC_CMI_INT_STATUS (0x10)
157#define CODEC_CMI_LEGACY_CTRL (0x14)
158#define CODEC_CMI_MISC_CTRL (0x18)
159#define CODEC_CMI_TDMA_POS (0x1C)
160#define CODEC_CMI_MIXER (0x20)
161#define CODEC_SB16_DATA (0x22)
162#define CODEC_SB16_ADDR (0x23)
163#define CODEC_CMI_MIXER1 (0x24)
164#define CODEC_CMI_MIXER2 (0x25)
165#define CODEC_CMI_AUX_VOL (0x26)
166#define CODEC_CMI_MISC (0x27)
167#define CODEC_CMI_AC97 (0x28)
168
169#define CODEC_CMI_CH0_FRAME1 (0x80)
170#define CODEC_CMI_CH0_FRAME2 (0x84)
171#define CODEC_CMI_CH1_FRAME1 (0x88)
172#define CODEC_CMI_CH1_FRAME2 (0x8C)
173
174#define CODEC_CMI_SPDIF_CTRL (0x90)
175#define CODEC_CMI_MISC_CTRL2 (0x92)
176
177#define CODEC_CMI_EXT_REG (0xF0)
178
179/* Mixer registers for SB16 ******************/
180
181#define DSP_MIX_DATARESETIDX ((unsigned char)(0x00))
182
183#define DSP_MIX_MASTERVOLIDX_L ((unsigned char)(0x30))
184#define DSP_MIX_MASTERVOLIDX_R ((unsigned char)(0x31))
185#define DSP_MIX_VOICEVOLIDX_L ((unsigned char)(0x32))
186#define DSP_MIX_VOICEVOLIDX_R ((unsigned char)(0x33))
187#define DSP_MIX_FMVOLIDX_L ((unsigned char)(0x34))
188#define DSP_MIX_FMVOLIDX_R ((unsigned char)(0x35))
189#define DSP_MIX_CDVOLIDX_L ((unsigned char)(0x36))
190#define DSP_MIX_CDVOLIDX_R ((unsigned char)(0x37))
191#define DSP_MIX_LINEVOLIDX_L ((unsigned char)(0x38))
192#define DSP_MIX_LINEVOLIDX_R ((unsigned char)(0x39))
193
194#define DSP_MIX_MICVOLIDX ((unsigned char)(0x3A))
195#define DSP_MIX_SPKRVOLIDX ((unsigned char)(0x3B))
196
197#define DSP_MIX_OUTMIXIDX ((unsigned char)(0x3C))
198
199#define DSP_MIX_ADCMIXIDX_L ((unsigned char)(0x3D))
200#define DSP_MIX_ADCMIXIDX_R ((unsigned char)(0x3E))
201
202#define DSP_MIX_INGAINIDX_L ((unsigned char)(0x3F))
203#define DSP_MIX_INGAINIDX_R ((unsigned char)(0x40))
204#define DSP_MIX_OUTGAINIDX_L ((unsigned char)(0x41))
205#define DSP_MIX_OUTGAINIDX_R ((unsigned char)(0x42))
206
207#define DSP_MIX_AGCIDX ((unsigned char)(0x43))
208
209#define DSP_MIX_TREBLEIDX_L ((unsigned char)(0x44))
210#define DSP_MIX_TREBLEIDX_R ((unsigned char)(0x45))
211#define DSP_MIX_BASSIDX_L ((unsigned char)(0x46))
212#define DSP_MIX_BASSIDX_R ((unsigned char)(0x47))
213#define DSP_MIX_EXTENSION ((unsigned char)(0xf0))
214// pseudo register for AUX
215#define DSP_MIX_AUXVOL_L ((unsigned char)(0x50))
216#define DSP_MIX_AUXVOL_R ((unsigned char)(0x51))
217
218// I/O length
219#define CM_EXTENT_CODEC 0x100
220#define CM_EXTENT_MIDI 0x2
221#define CM_EXTENT_SYNTH 0x4
222#define CM_EXTENT_GAME 0x8
223
224// Function Control Register 0 (00h)
225#define CHADC0 0x01
226#define CHADC1 0x02
227#define PAUSE0 0x04
228#define PAUSE1 0x08
229
230// Function Control Register 0+2 (02h)
231#define CHEN0 0x01
232#define CHEN1 0x02
233#define RST_CH0 0x04
234#define RST_CH1 0x08
235
236// Function Control Register 1 (04h)
237#define JYSTK_EN 0x02
238#define UART_EN 0x04
239#define SPDO2DAC 0x40
240#define SPDFLOOP 0x80
241
242// Function Control Register 1+1 (05h)
243#define SPDF_0 0x01
244#define SPDF_1 0x02
245#define ASFC 0x1c
246#define DSFC 0xe0
247#define SPDIF2DAC (SPDF_1 << 8 | SPDO2DAC)
248
249// Channel Format Register (08h)
250#define CM_CFMT_STEREO 0x01
251#define CM_CFMT_16BIT 0x02
252#define CM_CFMT_MASK 0x03
253#define POLVALID 0x20
254#define INVSPDIFI 0x80
255
256// Channel Format Register+2 (0ah)
257#define SPD24SEL 0x20
258
259// Channel Format Register+3 (0bh)
260#define CHB3D 0x20
261#define CHB3D5C 0x80
262
263// Interrupt Hold/Clear Register+2 (0eh)
264#define CH0_INT_EN 0x01
265#define CH1_INT_EN 0x02
266
267// Interrupt Register (10h)
268#define CHINT0 0x01
269#define CHINT1 0x02
270#define CH0BUSY 0x04
271#define CH1BUSY 0x08
272
273// Legacy Control/Status Register+1 (15h)
274#define EXBASEN 0x10
275#define BASE2LIN 0x20
276#define CENTR2LIN 0x40
277#define CB2LIN (BASE2LIN | CENTR2LIN)
278#define CHB3D6C 0x80
279
280// Legacy Control/Status Register+2 (16h)
281#define DAC2SPDO 0x20
282#define SPDCOPYRHT 0x40
283#define ENSPDOUT 0x80
284
285// Legacy Control/Status Register+3 (17h)
286#define FMSEL 0x03
287#define VSBSEL 0x0c
288#define VMPU 0x60
289#define NXCHG 0x80
290
291// Miscellaneous Control Register (18h)
292#define REAR2LIN 0x20
293#define MUTECH1 0x40
294#define ENCENTER 0x80
295
296// Miscellaneous Control Register+1 (19h)
297#define SELSPDIFI2 0x01
298#define SPDF_AC97 0x80
299
300// Miscellaneous Control Register+2 (1ah)
301#define AC3_EN 0x04
302#define FM_EN 0x08
303#define SPD32SEL 0x20
304#define XCHGDAC 0x40
305#define ENDBDAC 0x80
306
307// Miscellaneous Control Register+3 (1bh)
308#define SPDIFI48K 0x01
309#define SPDO5V 0x02
310#define N4SPK3D 0x04
311#define RESET 0x40
312#define PWD 0x80
313#define SPDIF48K (SPDIFI48K << 24 | SPDF_AC97 << 8)
314
315// Mixer1 (24h)
316#define CDPLAY 0x01
317#define X3DEN 0x02
318#define REAR2FRONT 0x10
319#define SPK4 0x20
320#define WSMUTE 0x40
321#define FMMUTE 0x80
322
323// Miscellaneous Register (27h)
324#define SPDVALID 0x02
325#define CENTR2MIC 0x04
326
327// Miscellaneous Register2 (92h)
328#define SPD32KFMT 0x10
329
330#define CM_CFMT_DACSHIFT 2
331#define CM_CFMT_ADCSHIFT 0
332#define CM_FREQ_DACSHIFT 5
333#define CM_FREQ_ADCSHIFT 2
334#define RSTDAC RST_CH1
335#define RSTADC RST_CH0
336#define ENDAC CHEN1
337#define ENADC CHEN0
338#define PAUSEDAC PAUSE1
339#define PAUSEADC PAUSE0
340#define CODEC_CMI_ADC_FRAME1 CODEC_CMI_CH0_FRAME1
341#define CODEC_CMI_ADC_FRAME2 CODEC_CMI_CH0_FRAME2
342#define CODEC_CMI_DAC_FRAME1 CODEC_CMI_CH1_FRAME1
343#define CODEC_CMI_DAC_FRAME2 CODEC_CMI_CH1_FRAME2
344#define DACINT CHINT1
345#define ADCINT CHINT0
346#define DACBUSY CH1BUSY
347#define ADCBUSY CH0BUSY
348#define ENDACINT CH1_INT_EN
349#define ENADCINT CH0_INT_EN
350
351static const unsigned sample_size[] = { 1, 2, 2, 4 };
352static const unsigned sample_shift[] = { 0, 1, 1, 2 };
353
354#define SND_DEV_DSP16 5
355
356#define NR_DEVICE 3 /* maximum number of devices */
357
358#define set_dac1_rate set_adc_rate
359#define set_dac1_rate_unlocked set_adc_rate_unlocked
360#define stop_dac1 stop_adc
361#define stop_dac1_unlocked stop_adc_unlocked
362#define get_dmadac1 get_dmaadc
363
364static unsigned int devindex = 0;
365
366//*********************************************/
367
368struct cm_state {
369 /* magic */
370 unsigned int magic;
371
372 /* list of cmedia devices */
373 struct list_head devs;
374
375 /* the corresponding pci_dev structure */
376 struct pci_dev *dev;
377
378 int dev_audio; /* soundcore stuff */
379 int dev_mixer;
380
381 unsigned int iosb, iobase, iosynth,
382 iomidi, iogame, irq; /* hardware resources */
383 unsigned short deviceid; /* pci_id */
384
385 struct { /* mixer stuff */
386 unsigned int modcnt;
387 unsigned short vol[13];
388 } mix;
389
390 unsigned int rateadc, ratedac; /* wave stuff */
391 unsigned char fmt, enable;
392
393 spinlock_t lock;
394 struct semaphore open_sem;
395 mode_t open_mode;
396 wait_queue_head_t open_wait;
397
398 struct dmabuf {
399 void *rawbuf;
400 dma_addr_t dmaaddr;
401 unsigned buforder;
402 unsigned numfrag;
403 unsigned fragshift;
404 unsigned hwptr, swptr;
405 unsigned total_bytes;
406 int count;
407 unsigned error; /* over/underrun */
408 wait_queue_head_t wait;
409
410 unsigned fragsize; /* redundant, but makes calculations easier */
411 unsigned dmasize;
412 unsigned fragsamples;
413 unsigned dmasamples;
414
415 unsigned mapped:1; /* OSS stuff */
416 unsigned ready:1;
417 unsigned endcleared:1;
418 unsigned enabled:1;
419 unsigned ossfragshift;
420 int ossmaxfrags;
421 unsigned subdivision;
422 } dma_dac, dma_adc;
423
424#ifdef CONFIG_SOUND_CMPCI_MIDI
425 int midi_devc;
426 struct address_info mpu_data;
427#endif
428#ifdef CONFIG_SOUND_CMPCI_JOYSTICK
429 struct gameport *gameport;
430#endif
431
432 int chip_version;
433 int max_channels;
434 int curr_channels;
435 int capability; /* HW capability, various for chip versions */
436
437 int status; /* HW or SW state */
438
439 int spdif_counter; /* spdif frame counter */
440};
441
442/* flags used for capability */
443#define CAN_AC3_HW 0x00000001 /* 037 or later */
444#define CAN_AC3_SW 0x00000002 /* 033 or later */
445#define CAN_AC3 (CAN_AC3_HW | CAN_AC3_SW)
446#define CAN_DUAL_DAC 0x00000004 /* 033 or later */
447#define CAN_MULTI_CH_HW 0x00000008 /* 039 or later */
448#define CAN_MULTI_CH (CAN_MULTI_CH_HW | CAN_DUAL_DAC)
449#define CAN_LINE_AS_REAR 0x00000010 /* 033 or later */
450#define CAN_LINE_AS_BASS 0x00000020 /* 039 or later */
451#define CAN_MIC_AS_BASS 0x00000040 /* 039 or later */
452
453/* flags used for status */
454#define DO_AC3_HW 0x00000001
455#define DO_AC3_SW 0x00000002
456#define DO_AC3 (DO_AC3_HW | DO_AC3_SW)
457#define DO_DUAL_DAC 0x00000004
458#define DO_MULTI_CH_HW 0x00000008
459#define DO_MULTI_CH (DO_MULTI_CH_HW | DO_DUAL_DAC)
460#define DO_LINE_AS_REAR 0x00000010 /* 033 or later */
461#define DO_LINE_AS_BASS 0x00000020 /* 039 or later */
462#define DO_MIC_AS_BASS 0x00000040 /* 039 or later */
463#define DO_SPDIF_OUT 0x00000100
464#define DO_SPDIF_IN 0x00000200
465#define DO_SPDIF_LOOP 0x00000400
466#define DO_BIGENDIAN_W 0x00001000 /* used in PowerPC */
467#define DO_BIGENDIAN_R 0x00002000 /* used in PowerPC */
468
469static LIST_HEAD(devs);
470
471static int mpuio;
472static int fmio;
473static int joystick;
474static int spdif_inverse;
475static int spdif_loop;
476static int spdif_out;
477static int use_line_as_rear;
478static int use_line_as_bass;
479static int use_mic_as_bass;
480static int mic_boost;
481static int hw_copy;
482module_param(mpuio, int, 0);
483module_param(fmio, int, 0);
484module_param(joystick, bool, 0);
485module_param(spdif_inverse, bool, 0);
486module_param(spdif_loop, bool, 0);
487module_param(spdif_out, bool, 0);
488module_param(use_line_as_rear, bool, 0);
489module_param(use_line_as_bass, bool, 0);
490module_param(use_mic_as_bass, bool, 0);
491module_param(mic_boost, bool, 0);
492module_param(hw_copy, bool, 0);
493MODULE_PARM_DESC(mpuio, "(0x330, 0x320, 0x310, 0x300) Base of MPU-401, 0 to disable");
494MODULE_PARM_DESC(fmio, "(0x388, 0x3C8, 0x3E0) Base of OPL3, 0 to disable");
495MODULE_PARM_DESC(joystick, "(1/0) Enable joystick interface, still need joystick driver");
496MODULE_PARM_DESC(spdif_inverse, "(1/0) Invert S/PDIF-in signal");
497MODULE_PARM_DESC(spdif_loop, "(1/0) Route S/PDIF-in to S/PDIF-out directly");
498MODULE_PARM_DESC(spdif_out, "(1/0) Send PCM to S/PDIF-out (PCM volume will not function)");
499MODULE_PARM_DESC(use_line_as_rear, "(1/0) Use line-in jack as rear-out");
500MODULE_PARM_DESC(use_line_as_bass, "(1/0) Use line-in jack as bass/center");
501MODULE_PARM_DESC(use_mic_as_bass, "(1/0) Use mic-in jack as bass/center");
502MODULE_PARM_DESC(mic_boost, "(1/0) Enable microphone boost");
503MODULE_PARM_DESC(hw_copy, "Copy front channel to surround channel");
504
505/* --------------------------------------------------------------------- */
506
507static inline unsigned ld2(unsigned int x)
508{
509 unsigned exp=16,l=5,r=0;
510 static const unsigned num[]={0x2,0x4,0x10,0x100,0x10000};
511
512 /* num: 2, 4, 16, 256, 65536 */
513 /* exp: 1, 2, 4, 8, 16 */
514
515 while(l--) {
516 if( x >= num[l] ) {
517 if(num[l]>2) x >>= exp;
518 r+=exp;
519 }
520 exp>>=1;
521 }
522
523 return r;
524}
525
526/* --------------------------------------------------------------------- */
527
528static void maskb(unsigned int addr, unsigned int mask, unsigned int value)
529{
530 outb((inb(addr) & mask) | value, addr);
531}
532
533static void maskw(unsigned int addr, unsigned int mask, unsigned int value)
534{
535 outw((inw(addr) & mask) | value, addr);
536}
537
538static void maskl(unsigned int addr, unsigned int mask, unsigned int value)
539{
540 outl((inl(addr) & mask) | value, addr);
541}
542
543static void set_dmadac1(struct cm_state *s, unsigned int addr, unsigned int count)
544{
545 if (addr)
546 outl(addr, s->iobase + CODEC_CMI_ADC_FRAME1);
547 outw(count - 1, s->iobase + CODEC_CMI_ADC_FRAME2);
548 maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~CHADC0, 0);
549}
550
551static void set_dmaadc(struct cm_state *s, unsigned int addr, unsigned int count)
552{
553 outl(addr, s->iobase + CODEC_CMI_ADC_FRAME1);
554 outw(count - 1, s->iobase + CODEC_CMI_ADC_FRAME2);
555 maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~0, CHADC0);
556}
557
558static void set_dmadac(struct cm_state *s, unsigned int addr, unsigned int count)
559{
560 outl(addr, s->iobase + CODEC_CMI_DAC_FRAME1);
561 outw(count - 1, s->iobase + CODEC_CMI_DAC_FRAME2);
562 maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~CHADC1, 0);
563 if (s->status & DO_DUAL_DAC)
564 set_dmadac1(s, 0, count);
565}
566
567static void set_countadc(struct cm_state *s, unsigned count)
568{
569 outw(count - 1, s->iobase + CODEC_CMI_ADC_FRAME2 + 2);
570}
571
572static void set_countdac(struct cm_state *s, unsigned count)
573{
574 outw(count - 1, s->iobase + CODEC_CMI_DAC_FRAME2 + 2);
575 if (s->status & DO_DUAL_DAC)
576 set_countadc(s, count);
577}
578
579static unsigned get_dmadac(struct cm_state *s)
580{
581 unsigned int curr_addr;
582
583 curr_addr = inw(s->iobase + CODEC_CMI_DAC_FRAME2) + 1;
584 curr_addr <<= sample_shift[(s->fmt >> CM_CFMT_DACSHIFT) & CM_CFMT_MASK];
585 curr_addr = s->dma_dac.dmasize - curr_addr;
586
587 return curr_addr;
588}
589
590static unsigned get_dmaadc(struct cm_state *s)
591{
592 unsigned int curr_addr;
593
594 curr_addr = inw(s->iobase + CODEC_CMI_ADC_FRAME2) + 1;
595 curr_addr <<= sample_shift[(s->fmt >> CM_CFMT_ADCSHIFT) & CM_CFMT_MASK];
596 curr_addr = s->dma_adc.dmasize - curr_addr;
597
598 return curr_addr;
599}
600
601static void wrmixer(struct cm_state *s, unsigned char idx, unsigned char data)
602{
603 unsigned char regval, pseudo;
604
605 // pseudo register
606 if (idx == DSP_MIX_AUXVOL_L) {
607 data >>= 4;
608 data &= 0x0f;
609 regval = inb(s->iobase + CODEC_CMI_AUX_VOL) & ~0x0f;
610 outb(regval | data, s->iobase + CODEC_CMI_AUX_VOL);
611 return;
612 }
613 if (idx == DSP_MIX_AUXVOL_R) {
614 data &= 0xf0;
615 regval = inb(s->iobase + CODEC_CMI_AUX_VOL) & ~0xf0;
616 outb(regval | data, s->iobase + CODEC_CMI_AUX_VOL);
617 return;
618 }
619 outb(idx, s->iobase + CODEC_SB16_ADDR);
620 udelay(10);
621 // pseudo bits
622 if (idx == DSP_MIX_OUTMIXIDX) {
623 pseudo = data & ~0x1f;
624 pseudo >>= 1;
625 regval = inb(s->iobase + CODEC_CMI_MIXER2) & ~0x30;
626 outb(regval | pseudo, s->iobase + CODEC_CMI_MIXER2);
627 }
628 if (idx == DSP_MIX_ADCMIXIDX_L) {
629 pseudo = data & 0x80;
630 pseudo >>= 1;
631 regval = inb(s->iobase + CODEC_CMI_MIXER2) & ~0x40;
632 outb(regval | pseudo, s->iobase + CODEC_CMI_MIXER2);
633 }
634 if (idx == DSP_MIX_ADCMIXIDX_R) {
635 pseudo = data & 0x80;
636 regval = inb(s->iobase + CODEC_CMI_MIXER2) & ~0x80;
637 outb(regval | pseudo, s->iobase + CODEC_CMI_MIXER2);
638 }
639 outb(data, s->iobase + CODEC_SB16_DATA);
640 udelay(10);
641}
642
643static unsigned char rdmixer(struct cm_state *s, unsigned char idx)
644{
645 unsigned char v, pseudo;
646
647 // pseudo register
648 if (idx == DSP_MIX_AUXVOL_L) {
649 v = inb(s->iobase + CODEC_CMI_AUX_VOL) & 0x0f;
650 v <<= 4;
651 return v;
652 }
653 if (idx == DSP_MIX_AUXVOL_L) {
654 v = inb(s->iobase + CODEC_CMI_AUX_VOL) & 0xf0;
655 return v;
656 }
657 outb(idx, s->iobase + CODEC_SB16_ADDR);
658 udelay(10);
659 v = inb(s->iobase + CODEC_SB16_DATA);
660 udelay(10);
661 // pseudo bits
662 if (idx == DSP_MIX_OUTMIXIDX) {
663 pseudo = inb(s->iobase + CODEC_CMI_MIXER2) & 0x30;
664 pseudo <<= 1;
665 v |= pseudo;
666 }
667 if (idx == DSP_MIX_ADCMIXIDX_L) {
668 pseudo = inb(s->iobase + CODEC_CMI_MIXER2) & 0x40;
669 pseudo <<= 1;
670 v |= pseudo;
671 }
672 if (idx == DSP_MIX_ADCMIXIDX_R) {
673 pseudo = inb(s->iobase + CODEC_CMI_MIXER2) & 0x80;
674 v |= pseudo;
675 }
676 return v;
677}
678
679static void set_fmt_unlocked(struct cm_state *s, unsigned char mask, unsigned char data)
680{
681 if (mask && s->chip_version > 0) { /* 8338 cannot keep this */
682 s->fmt = inb(s->iobase + CODEC_CMI_CHFORMAT);
683 udelay(10);
684 }
685 s->fmt = (s->fmt & mask) | data;
686 outb(s->fmt, s->iobase + CODEC_CMI_CHFORMAT);
687 udelay(10);
688}
689
690static void set_fmt(struct cm_state *s, unsigned char mask, unsigned char data)
691{
692 unsigned long flags;
693
694 spin_lock_irqsave(&s->lock, flags);
695 set_fmt_unlocked(s,mask,data);
696 spin_unlock_irqrestore(&s->lock, flags);
697}
698
699static void frobindir(struct cm_state *s, unsigned char idx, unsigned char mask, unsigned char data)
700{
701 outb(idx, s->iobase + CODEC_SB16_ADDR);
702 udelay(10);
703 outb((inb(s->iobase + CODEC_SB16_DATA) & mask) | data, s->iobase + CODEC_SB16_DATA);
704 udelay(10);
705}
706
707static struct {
708 unsigned rate;
709 unsigned lower;
710 unsigned upper;
711 unsigned char freq;
712} rate_lookup[] =
713{
714 { 5512, (0 + 5512) / 2, (5512 + 8000) / 2, 0 },
715 { 8000, (5512 + 8000) / 2, (8000 + 11025) / 2, 4 },
716 { 11025, (8000 + 11025) / 2, (11025 + 16000) / 2, 1 },
717 { 16000, (11025 + 16000) / 2, (16000 + 22050) / 2, 5 },
718 { 22050, (16000 + 22050) / 2, (22050 + 32000) / 2, 2 },
719 { 32000, (22050 + 32000) / 2, (32000 + 44100) / 2, 6 },
720 { 44100, (32000 + 44100) / 2, (44100 + 48000) / 2, 3 },
721 { 48000, (44100 + 48000) / 2, 48000, 7 }
722};
723
724static void set_spdif_copyright(struct cm_state *s, int spdif_copyright)
725{
726 /* enable SPDIF-in Copyright */
727 maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 2, ~SPDCOPYRHT, spdif_copyright ? SPDCOPYRHT : 0);
728}
729
730static void set_spdif_loop(struct cm_state *s, int spdif_loop)
731{
732 /* enable SPDIF loop */
733 if (spdif_loop) {
734 s->status |= DO_SPDIF_LOOP;
735 /* turn on spdif-in to spdif-out */
736 maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0, SPDFLOOP);
737 } else {
738 s->status &= ~DO_SPDIF_LOOP;
739 /* turn off spdif-in to spdif-out */
740 maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~SPDFLOOP, 0);
741 }
742}
743
744static void set_spdif_monitor(struct cm_state *s, int channel)
745{
746 // SPDO2DAC
747 maskw(s->iobase + CODEC_CMI_FUNCTRL1, ~SPDO2DAC, channel == 2 ? SPDO2DAC : 0);
748 // CDPLAY
749 if (s->chip_version >= 39)
750 maskb(s->iobase + CODEC_CMI_MIXER1, ~CDPLAY, channel ? CDPLAY : 0);
751}
752
753static void set_spdifout_level(struct cm_state *s, int level5v)
754{
755 /* SPDO5V */
756 if (s->chip_version > 0)
757 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 3, ~SPDO5V, level5v ? SPDO5V : 0);
758}
759
760static void set_spdifin_inverse(struct cm_state *s, int spdif_inverse)
761{
762 if (s->chip_version == 0) /* 8338 has not this feature */
763 return;
764 if (spdif_inverse) {
765 /* turn on spdif-in inverse */
766 if (s->chip_version >= 39)
767 maskb(s->iobase + CODEC_CMI_CHFORMAT, ~0, INVSPDIFI);
768 else
769 maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0, 1);
770 } else {
771 /* turn off spdif-ininverse */
772 if (s->chip_version >= 39)
773 maskb(s->iobase + CODEC_CMI_CHFORMAT, ~INVSPDIFI, 0);
774 else
775 maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~1, 0);
776 }
777}
778
779static void set_spdifin_channel2(struct cm_state *s, int channel2)
780{
781 /* SELSPDIFI2 */
782 if (s->chip_version >= 39)
783 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 1, ~SELSPDIFI2, channel2 ? SELSPDIFI2 : 0);
784}
785
786static void set_spdifin_valid(struct cm_state *s, int valid)
787{
788 /* SPDVALID */
789 maskb(s->iobase + CODEC_CMI_MISC, ~SPDVALID, valid ? SPDVALID : 0);
790}
791
792static void set_spdifout_unlocked(struct cm_state *s, unsigned rate)
793{
794 if (rate != 48000 && rate != 44100)
795 rate = 0;
796 if (rate == 48000 || rate == 44100) {
797 set_spdif_loop(s, 0);
798 // SPDF_1
799 maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~0, SPDF_1);
800 // SPDIFI48K SPDF_AC97
801 maskl(s->iobase + CODEC_CMI_MISC_CTRL, ~SPDIF48K, rate == 48000 ? SPDIF48K : 0);
802 if (s->chip_version >= 55)
803 // SPD32KFMT
804 maskb(s->iobase + CODEC_CMI_MISC_CTRL2, ~SPD32KFMT, rate == 48000 ? SPD32KFMT : 0);
805 if (s->chip_version > 0)
806 // ENSPDOUT
807 maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 2, ~0, ENSPDOUT);
808 // monitor SPDIF out
809 set_spdif_monitor(s, 2);
810 s->status |= DO_SPDIF_OUT;
811 } else {
812 maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~SPDF_1, 0);
813 maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 2, ~ENSPDOUT, 0);
814 // monitor none
815 set_spdif_monitor(s, 0);
816 s->status &= ~DO_SPDIF_OUT;
817 }
818}
819
820static void set_spdifout(struct cm_state *s, unsigned rate)
821{
822 unsigned long flags;
823
824 spin_lock_irqsave(&s->lock, flags);
825 set_spdifout_unlocked(s,rate);
826 spin_unlock_irqrestore(&s->lock, flags);
827}
828
829static void set_spdifin_unlocked(struct cm_state *s, unsigned rate)
830{
831 if (rate == 48000 || rate == 44100) {
832 // SPDF_1
833 maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~0, SPDF_1);
834 // SPDIFI48K SPDF_AC97
835 maskl(s->iobase + CODEC_CMI_MISC_CTRL, ~SPDIF48K, rate == 48000 ? SPDIF48K : 0);
836 s->status |= DO_SPDIF_IN;
837 } else {
838 maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~SPDF_1, 0);
839 s->status &= ~DO_SPDIF_IN;
840 }
841}
842
843static void set_spdifin(struct cm_state *s, unsigned rate)
844{
845 unsigned long flags;
846
847 spin_lock_irqsave(&s->lock, flags);
848 set_spdifin_unlocked(s,rate);
849 spin_unlock_irqrestore(&s->lock, flags);
850}
851
852/* find parity for bit 4~30 */
853static unsigned parity(unsigned data)
854{
855 unsigned parity = 0;
856 int counter = 4;
857
858 data >>= 4; // start from bit 4
859 while (counter <= 30) {
860 if (data & 1)
861 parity++;
862 data >>= 1;
863 counter++;
864 }
865 return parity & 1;
866}
867
868static void set_ac3_unlocked(struct cm_state *s, unsigned rate)
869{
870 if (!(s->capability & CAN_AC3))
871 return;
872 /* enable AC3 */
873 if (rate && rate != 44100)
874 rate = 48000;
875 if (rate == 48000 || rate == 44100) {
876 // mute DAC
877 maskb(s->iobase + CODEC_CMI_MIXER1, ~0, WSMUTE);
878 if (s->chip_version >= 39)
879 maskb(s->iobase + CODEC_CMI_MISC_CTRL, ~0, MUTECH1);
880 // AC3EN for 039, 0x04
881 if (s->chip_version >= 39) {
882 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0, AC3_EN);
883 if (s->chip_version == 55)
884 maskb(s->iobase + CODEC_CMI_SPDIF_CTRL, ~2, 0);
885 // AC3EN for 037, 0x10
886 } else if (s->chip_version == 37)
887 maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0, 0x10);
888 if (s->capability & CAN_AC3_HW) {
889 // SPD24SEL for 039, 0x20, but cannot be set
890 if (s->chip_version == 39)
891 maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0, SPD24SEL);
892 // SPD24SEL for 037, 0x02
893 else if (s->chip_version == 37)
894 maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0, 0x02);
895 if (s->chip_version >= 39)
896 maskb(s->iobase + CODEC_CMI_MIXER1, ~CDPLAY, 0);
897
898 s->status |= DO_AC3_HW;
899 } else {
900 // SPD32SEL for 037 & 039
901 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0, SPD32SEL);
902 // set 176K sample rate to fix 033 HW bug
903 if (s->chip_version == 33) {
904 if (rate == 48000)
905 maskb(s->iobase + CODEC_CMI_CHFORMAT + 1, ~0, 0x08);
906 else
907 maskb(s->iobase + CODEC_CMI_CHFORMAT + 1, ~0x08, 0);
908 }
909 s->status |= DO_AC3_SW;
910 }
911 } else {
912 maskb(s->iobase + CODEC_CMI_MIXER1, ~WSMUTE, 0);
913 if (s->chip_version >= 39)
914 maskb(s->iobase + CODEC_CMI_MISC_CTRL, ~MUTECH1, 0);
915 maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~(SPD24SEL|0x12), 0);
916 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~(SPD32SEL|AC3_EN), 0);
917 if (s->chip_version == 33)
918 maskb(s->iobase + CODEC_CMI_CHFORMAT + 1, ~0x08, 0);
919 if (s->chip_version >= 39)
920 maskb(s->iobase + CODEC_CMI_MIXER1, ~0, CDPLAY);
921 s->status &= ~DO_AC3;
922 }
923 s->spdif_counter = 0;
924}
925
926static void set_line_as_rear(struct cm_state *s, int use_line_as_rear)
927{
928 if (!(s->capability & CAN_LINE_AS_REAR))
929 return;
930 if (use_line_as_rear) {
931 maskb(s->iobase + CODEC_CMI_MIXER1, ~0, SPK4);
932 s->status |= DO_LINE_AS_REAR;
933 } else {
934 maskb(s->iobase + CODEC_CMI_MIXER1, ~SPK4, 0);
935 s->status &= ~DO_LINE_AS_REAR;
936 }
937}
938
939static void set_line_as_bass(struct cm_state *s, int use_line_as_bass)
940{
941 if (!(s->capability & CAN_LINE_AS_BASS))
942 return;
943 if (use_line_as_bass) {
944 maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~0, CB2LIN);
945 s->status |= DO_LINE_AS_BASS;
946 } else {
947 maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~CB2LIN, 0);
948 s->status &= ~DO_LINE_AS_BASS;
949 }
950}
951
952static void set_mic_as_bass(struct cm_state *s, int use_mic_as_bass)
953{
954 if (!(s->capability & CAN_MIC_AS_BASS))
955 return;
956 if (use_mic_as_bass) {
957 maskb(s->iobase + CODEC_CMI_MISC, ~0, 0x04);
958 s->status |= DO_MIC_AS_BASS;
959 } else {
960 maskb(s->iobase + CODEC_CMI_MISC, ~0x04, 0);
961 s->status &= ~DO_MIC_AS_BASS;
962 }
963}
964
965static void set_hw_copy(struct cm_state *s, int hw_copy)
966{
967 if (s->max_channels > 2 && hw_copy)
968 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 3, ~0, N4SPK3D);
969 else
970 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 3, ~N4SPK3D, 0);
971}
972
973static void set_ac3(struct cm_state *s, unsigned rate)
974{
975 unsigned long flags;
976
977 spin_lock_irqsave(&s->lock, flags);
978 set_spdifout_unlocked(s, rate);
979 set_ac3_unlocked(s, rate);
980 spin_unlock_irqrestore(&s->lock, flags);
981}
982
983static int trans_ac3(struct cm_state *s, void *dest, const char __user *source, int size)
984{
985 int i = size / 2;
986 unsigned long data;
987 unsigned short data16;
988 unsigned long *dst = (unsigned long *) dest;
989 unsigned short __user *src = (unsigned short __user *)source;
990 int err;
991
992 do {
993 if ((err = __get_user(data16, src++)))
994 return err;
995 data = (unsigned long)le16_to_cpu(data16);
996 data <<= 12; // ok for 16-bit data
997 if (s->spdif_counter == 2 || s->spdif_counter == 3)
998 data |= 0x40000000; // indicate AC-3 raw data
999 if (parity(data))
1000 data |= 0x80000000; // parity
1001 if (s->spdif_counter == 0)
1002 data |= 3; // preamble 'M'
1003 else if (s->spdif_counter & 1)
1004 data |= 5; // odd, 'W'
1005 else
1006 data |= 9; // even, 'M'
1007 *dst++ = cpu_to_le32(data);
1008 s->spdif_counter++;
1009 if (s->spdif_counter == 384)
1010 s->spdif_counter = 0;
1011 } while (--i);
1012
1013 return 0;
1014}
1015
1016static void set_adc_rate_unlocked(struct cm_state *s, unsigned rate)
1017{
1018 unsigned char freq = 4;
1019 int i;
1020
1021 if (rate > 48000)
1022 rate = 48000;
1023 if (rate < 8000)
1024 rate = 8000;
1025 for (i = 0; i < sizeof(rate_lookup) / sizeof(rate_lookup[0]); i++) {
1026 if (rate > rate_lookup[i].lower && rate <= rate_lookup[i].upper) {
1027 rate = rate_lookup[i].rate;
1028 freq = rate_lookup[i].freq;
1029 break;
1030 }
1031 }
1032 s->rateadc = rate;
1033 freq <<= CM_FREQ_ADCSHIFT;
1034
1035 maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~ASFC, freq);
1036}
1037
1038static void set_adc_rate(struct cm_state *s, unsigned rate)
1039{
1040 unsigned long flags;
1041 unsigned char freq = 4;
1042 int i;
1043
1044 if (rate > 48000)
1045 rate = 48000;
1046 if (rate < 8000)
1047 rate = 8000;
1048 for (i = 0; i < sizeof(rate_lookup) / sizeof(rate_lookup[0]); i++) {
1049 if (rate > rate_lookup[i].lower && rate <= rate_lookup[i].upper) {
1050 rate = rate_lookup[i].rate;
1051 freq = rate_lookup[i].freq;
1052 break;
1053 }
1054 }
1055 s->rateadc = rate;
1056 freq <<= CM_FREQ_ADCSHIFT;
1057
1058 spin_lock_irqsave(&s->lock, flags);
1059 maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~ASFC, freq);
1060 spin_unlock_irqrestore(&s->lock, flags);
1061}
1062
1063static void set_dac_rate(struct cm_state *s, unsigned rate)
1064{
1065 unsigned long flags;
1066 unsigned char freq = 4;
1067 int i;
1068
1069 if (rate > 48000)
1070 rate = 48000;
1071 if (rate < 8000)
1072 rate = 8000;
1073 for (i = 0; i < sizeof(rate_lookup) / sizeof(rate_lookup[0]); i++) {
1074 if (rate > rate_lookup[i].lower && rate <= rate_lookup[i].upper) {
1075 rate = rate_lookup[i].rate;
1076 freq = rate_lookup[i].freq;
1077 break;
1078 }
1079 }
1080 s->ratedac = rate;
1081 freq <<= CM_FREQ_DACSHIFT;
1082
1083 spin_lock_irqsave(&s->lock, flags);
1084 maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~DSFC, freq);
1085 spin_unlock_irqrestore(&s->lock, flags);
1086
1087 if (s->curr_channels <= 2 && spdif_out)
1088 set_spdifout(s, rate);
1089 if (s->status & DO_DUAL_DAC)
1090 set_dac1_rate(s, rate);
1091}
1092
1093/* --------------------------------------------------------------------- */
1094static inline void reset_adc(struct cm_state *s)
1095{
1096 /* reset bus master */
1097 outb(s->enable | RSTADC, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
1098 udelay(10);
1099 outb(s->enable & ~RSTADC, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
1100}
1101
1102static inline void reset_dac(struct cm_state *s)
1103{
1104 /* reset bus master */
1105 outb(s->enable | RSTDAC, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
1106 udelay(10);
1107 outb(s->enable & ~RSTDAC, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
1108 if (s->status & DO_DUAL_DAC)
1109 reset_adc(s);
1110}
1111
1112static inline void pause_adc(struct cm_state *s)
1113{
1114 maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~0, PAUSEADC);
1115}
1116
1117static inline void pause_dac(struct cm_state *s)
1118{
1119 maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~0, PAUSEDAC);
1120 if (s->status & DO_DUAL_DAC)
1121 pause_adc(s);
1122}
1123
1124static inline void disable_adc(struct cm_state *s)
1125{
1126 /* disable channel */
1127 s->enable &= ~ENADC;
1128 outb(s->enable, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
1129 reset_adc(s);
1130}
1131
1132static inline void disable_dac(struct cm_state *s)
1133{
1134 /* disable channel */
1135 s->enable &= ~ENDAC;
1136 outb(s->enable, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
1137 reset_dac(s);
1138 if (s->status & DO_DUAL_DAC)
1139 disable_adc(s);
1140}
1141
1142static inline void enable_adc(struct cm_state *s)
1143{
1144 if (!(s->enable & ENADC)) {
1145 /* enable channel */
1146 s->enable |= ENADC;
1147 outb(s->enable, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
1148 }
1149 maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~PAUSEADC, 0);
1150}
1151
1152static inline void enable_dac_unlocked(struct cm_state *s)
1153{
1154 if (!(s->enable & ENDAC)) {
1155 /* enable channel */
1156 s->enable |= ENDAC;
1157 outb(s->enable, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
1158 }
1159 maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~PAUSEDAC, 0);
1160
1161 if (s->status & DO_DUAL_DAC)
1162 enable_adc(s);
1163}
1164
1165static inline void stop_adc_unlocked(struct cm_state *s)
1166{
1167 if (s->enable & ENADC) {
1168 /* disable interrupt */
1169 maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~ENADCINT, 0);
1170 disable_adc(s);
1171 }
1172}
1173
1174static inline void stop_adc(struct cm_state *s)
1175{
1176 unsigned long flags;
1177
1178 spin_lock_irqsave(&s->lock, flags);
1179 stop_adc_unlocked(s);
1180 spin_unlock_irqrestore(&s->lock, flags);
1181
1182}
1183
1184static inline void stop_dac_unlocked(struct cm_state *s)
1185{
1186 if (s->enable & ENDAC) {
1187 /* disable interrupt */
1188 maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~ENDACINT, 0);
1189 disable_dac(s);
1190 }
1191 if (s->status & DO_DUAL_DAC)
1192 stop_dac1_unlocked(s);
1193}
1194
1195static inline void stop_dac(struct cm_state *s)
1196{
1197 unsigned long flags;
1198
1199 spin_lock_irqsave(&s->lock, flags);
1200 stop_dac_unlocked(s);
1201 spin_unlock_irqrestore(&s->lock, flags);
1202}
1203
1204static inline void start_adc_unlocked(struct cm_state *s)
1205{
1206 if ((s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
1207 && s->dma_adc.ready) {
1208 /* enable interrupt */
1209 maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~0, ENADCINT);
1210 enable_adc(s);
1211 }
1212}
1213
1214static void start_adc(struct cm_state *s)
1215{
1216 unsigned long flags;
1217
1218 spin_lock_irqsave(&s->lock, flags);
1219 start_adc_unlocked(s);
1220 spin_unlock_irqrestore(&s->lock, flags);
1221}
1222
1223static void start_dac1_unlocked(struct cm_state *s)
1224{
1225 if ((s->dma_adc.mapped || s->dma_adc.count > 0) && s->dma_adc.ready) {
1226 /* enable interrupt */
1227 maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~0, ENADCINT);
1228 enable_dac_unlocked(s);
1229 }
1230}
1231
1232static void start_dac_unlocked(struct cm_state *s)
1233{
1234 if ((s->dma_dac.mapped || s->dma_dac.count > 0) && s->dma_dac.ready) {
1235 /* enable interrupt */
1236 maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~0, ENDACINT);
1237 enable_dac_unlocked(s);
1238 }
1239 if (s->status & DO_DUAL_DAC)
1240 start_dac1_unlocked(s);
1241}
1242
1243static void start_dac(struct cm_state *s)
1244{
1245 unsigned long flags;
1246
1247 spin_lock_irqsave(&s->lock, flags);
1248 start_dac_unlocked(s);
1249 spin_unlock_irqrestore(&s->lock, flags);
1250}
1251
1252static int prog_dmabuf(struct cm_state *s, unsigned rec);
1253
1254static int set_dac_channels(struct cm_state *s, int channels)
1255{
1256 unsigned long flags;
1257 static unsigned int fmmute = 0;
1258
1259 spin_lock_irqsave(&s->lock, flags);
1260
1261 if ((channels > 2) && (channels <= s->max_channels)
1262 && (((s->fmt >> CM_CFMT_DACSHIFT) & CM_CFMT_MASK) == (CM_CFMT_STEREO | CM_CFMT_16BIT))) {
1263 set_spdifout_unlocked(s, 0);
1264 if (s->capability & CAN_MULTI_CH_HW) {
1265 // NXCHG
1266 maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 3, ~0, NXCHG);
1267 // CHB3D or CHB3D5C
1268 maskb(s->iobase + CODEC_CMI_CHFORMAT + 3, ~(CHB3D5C|CHB3D), channels > 4 ? CHB3D5C : CHB3D);
1269 // CHB3D6C
1270 maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~CHB3D6C, channels == 6 ? CHB3D6C : 0);
1271 // ENCENTER
1272 maskb(s->iobase + CODEC_CMI_MISC_CTRL, ~ENCENTER, channels == 6 ? ENCENTER : 0);
1273 s->status |= DO_MULTI_CH_HW;
1274 } else if (s->capability & CAN_DUAL_DAC) {
1275 unsigned char fmtm = ~0, fmts = 0;
1276 ssize_t ret;
1277
1278 // ENDBDAC, turn on double DAC mode
1279 // XCHGDAC, CH0 -> back, CH1->front
1280 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0, ENDBDAC|XCHGDAC);
1281 // mute FM
1282 fmmute = inb(s->iobase + CODEC_CMI_MIXER1) & FMMUTE;
1283 maskb(s->iobase + CODEC_CMI_MIXER1, ~0, FMMUTE);
1284 s->status |= DO_DUAL_DAC;
1285 // prepare secondary buffer
1286 spin_unlock_irqrestore(&s->lock, flags);
1287 ret = prog_dmabuf(s, 1);
1288 if (ret) return ret;
1289 spin_lock_irqsave(&s->lock, flags);
1290
1291 // copy the hw state
1292 fmtm &= ~((CM_CFMT_STEREO | CM_CFMT_16BIT) << CM_CFMT_DACSHIFT);
1293 fmtm &= ~((CM_CFMT_STEREO | CM_CFMT_16BIT) << CM_CFMT_ADCSHIFT);
1294 // the HW only support 16-bit stereo
1295 fmts |= CM_CFMT_16BIT << CM_CFMT_DACSHIFT;
1296 fmts |= CM_CFMT_16BIT << CM_CFMT_ADCSHIFT;
1297 fmts |= CM_CFMT_STEREO << CM_CFMT_DACSHIFT;
1298 fmts |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
1299
1300 set_fmt_unlocked(s, fmtm, fmts);
1301 set_adc_rate_unlocked(s, s->ratedac);
1302 }
1303 // disable 4 speaker mode (analog duplicate)
1304 set_hw_copy(s, 0);
1305 s->curr_channels = channels;
1306
1307 // enable jack redirect
1308 set_line_as_rear(s, use_line_as_rear);
1309 if (channels > 4) {
1310 set_line_as_bass(s, use_line_as_bass);
1311 set_mic_as_bass(s, use_mic_as_bass);
1312 }
1313 } else {
1314 if (s->status & DO_MULTI_CH_HW) {
1315 maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 3, ~NXCHG, 0);
1316 maskb(s->iobase + CODEC_CMI_CHFORMAT + 3, ~(CHB3D5C|CHB3D), 0);
1317 maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~CHB3D6C, 0);
1318 } else if (s->status & DO_DUAL_DAC) {
1319 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~ENDBDAC, 0);
1320 maskb(s->iobase + CODEC_CMI_MIXER1, ~FMMUTE, fmmute);
1321 }
1322 // enable 4 speaker mode (analog duplicate)
1323 set_hw_copy(s, hw_copy);
1324 s->status &= ~DO_MULTI_CH;
1325 s->curr_channels = s->fmt & (CM_CFMT_STEREO << CM_CFMT_DACSHIFT) ? 2 : 1;
1326 // disable jack redirect
1327 set_line_as_rear(s, hw_copy ? use_line_as_rear : 0);
1328 set_line_as_bass(s, 0);
1329 set_mic_as_bass(s, 0);
1330 }
1331 spin_unlock_irqrestore(&s->lock, flags);
1332 return s->curr_channels;
1333}
1334
1335/* --------------------------------------------------------------------- */
1336
1337#define DMABUF_DEFAULTORDER (16-PAGE_SHIFT)
1338#define DMABUF_MINORDER 1
1339
1340static void dealloc_dmabuf(struct cm_state *s, struct dmabuf *db)
1341{
1342 struct page *pstart, *pend;
1343
1344 if (db->rawbuf) {
1345 /* undo marking the pages as reserved */
1346 pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
1347 for (pstart = virt_to_page(db->rawbuf); pstart <= pend; pstart++)
1348 ClearPageReserved(pstart);
1349 pci_free_consistent(s->dev, PAGE_SIZE << db->buforder, db->rawbuf, db->dmaaddr);
1350 }
1351 db->rawbuf = NULL;
1352 db->mapped = db->ready = 0;
1353}
1354
1355/* Ch1 is used for playback, Ch0 is used for recording */
1356
1357static int prog_dmabuf(struct cm_state *s, unsigned rec)
1358{
1359 struct dmabuf *db = rec ? &s->dma_adc : &s->dma_dac;
1360 unsigned rate = rec ? s->rateadc : s->ratedac;
1361 int order;
1362 unsigned bytepersec;
1363 unsigned bufs;
1364 struct page *pstart, *pend;
1365 unsigned char fmt;
1366 unsigned long flags;
1367
1368 fmt = s->fmt;
1369 if (rec) {
1370 stop_adc(s);
1371 fmt >>= CM_CFMT_ADCSHIFT;
1372 } else {
1373 stop_dac(s);
1374 fmt >>= CM_CFMT_DACSHIFT;
1375 }
1376
1377 fmt &= CM_CFMT_MASK;
1378 db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
1379 if (!db->rawbuf) {
1380 db->ready = db->mapped = 0;
1381 for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
1382 if ((db->rawbuf = pci_alloc_consistent(s->dev, PAGE_SIZE << order, &db->dmaaddr)))
1383 break;
1384 if (!db->rawbuf || !db->dmaaddr)
1385 return -ENOMEM;
1386 db->buforder = order;
1387 /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
1388 pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
1389 for (pstart = virt_to_page(db->rawbuf); pstart <= pend; pstart++)
1390 SetPageReserved(pstart);
1391 }
1392 bytepersec = rate << sample_shift[fmt];
1393 bufs = PAGE_SIZE << db->buforder;
1394 if (db->ossfragshift) {
1395 if ((1000 << db->ossfragshift) < bytepersec)
1396 db->fragshift = ld2(bytepersec/1000);
1397 else
1398 db->fragshift = db->ossfragshift;
1399 } else {
1400 db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
1401 if (db->fragshift < 3)
1402 db->fragshift = 3;
1403 }
1404 db->numfrag = bufs >> db->fragshift;
1405 while (db->numfrag < 4 && db->fragshift > 3) {
1406 db->fragshift--;
1407 db->numfrag = bufs >> db->fragshift;
1408 }
1409 db->fragsize = 1 << db->fragshift;
1410 if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
1411 db->numfrag = db->ossmaxfrags;
1412 /* to make fragsize >= 4096 */
1413 db->fragsamples = db->fragsize >> sample_shift[fmt];
1414 db->dmasize = db->numfrag << db->fragshift;
1415 db->dmasamples = db->dmasize >> sample_shift[fmt];
1416 memset(db->rawbuf, (fmt & CM_CFMT_16BIT) ? 0 : 0x80, db->dmasize);
1417 spin_lock_irqsave(&s->lock, flags);
1418 if (rec) {
1419 if (s->status & DO_DUAL_DAC)
1420 set_dmadac1(s, db->dmaaddr, db->dmasize >> sample_shift[fmt]);
1421 else
1422 set_dmaadc(s, db->dmaaddr, db->dmasize >> sample_shift[fmt]);
1423 /* program sample counts */
1424 set_countdac(s, db->fragsamples);
1425 } else {
1426 set_dmadac(s, db->dmaaddr, db->dmasize >> sample_shift[fmt]);
1427 /* program sample counts */
1428 set_countdac(s, db->fragsamples);
1429 }
1430 spin_unlock_irqrestore(&s->lock, flags);
1431 db->enabled = 1;
1432 db->ready = 1;
1433 return 0;
1434}
1435
1436static inline void clear_advance(struct cm_state *s)
1437{
1438 unsigned char c = (s->fmt & (CM_CFMT_16BIT << CM_CFMT_DACSHIFT)) ? 0 : 0x80;
1439 unsigned char *buf = s->dma_dac.rawbuf;
1440 unsigned char *buf1 = s->dma_adc.rawbuf;
1441 unsigned bsize = s->dma_dac.dmasize;
1442 unsigned bptr = s->dma_dac.swptr;
1443 unsigned len = s->dma_dac.fragsize;
1444
1445 if (bptr + len > bsize) {
1446 unsigned x = bsize - bptr;
1447 memset(buf + bptr, c, x);
1448 if (s->status & DO_DUAL_DAC)
1449 memset(buf1 + bptr, c, x);
1450 bptr = 0;
1451 len -= x;
1452 }
1453 memset(buf + bptr, c, len);
1454 if (s->status & DO_DUAL_DAC)
1455 memset(buf1 + bptr, c, len);
1456}
1457
1458/* call with spinlock held! */
1459static void cm_update_ptr(struct cm_state *s)
1460{
1461 unsigned hwptr;
1462 int diff;
1463
1464 /* update ADC pointer */
1465 if (s->dma_adc.ready) {
1466 if (s->status & DO_DUAL_DAC) {
1467 /* the dac part will finish for this */
1468 } else {
1469 hwptr = get_dmaadc(s) % s->dma_adc.dmasize;
1470 diff = (s->dma_adc.dmasize + hwptr - s->dma_adc.hwptr) % s->dma_adc.dmasize;
1471 s->dma_adc.hwptr = hwptr;
1472 s->dma_adc.total_bytes += diff;
1473 s->dma_adc.count += diff;
1474 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
1475 wake_up(&s->dma_adc.wait);
1476 if (!s->dma_adc.mapped) {
1477 if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
1478 pause_adc(s);
1479 s->dma_adc.error++;
1480 }
1481 }
1482 }
1483 }
1484 /* update DAC pointer */
1485 if (s->dma_dac.ready) {
1486 hwptr = get_dmadac(s) % s->dma_dac.dmasize;
1487 diff = (s->dma_dac.dmasize + hwptr - s->dma_dac.hwptr) % s->dma_dac.dmasize;
1488 s->dma_dac.hwptr = hwptr;
1489 s->dma_dac.total_bytes += diff;
1490 if (s->status & DO_DUAL_DAC) {
1491 s->dma_adc.hwptr = hwptr;
1492 s->dma_adc.total_bytes += diff;
1493 }
1494 if (s->dma_dac.mapped) {
1495 s->dma_dac.count += diff;
1496 if (s->status & DO_DUAL_DAC)
1497 s->dma_adc.count += diff;
1498 if (s->dma_dac.count >= (signed)s->dma_dac.fragsize)
1499 wake_up(&s->dma_dac.wait);
1500 } else {
1501 s->dma_dac.count -= diff;
1502 if (s->status & DO_DUAL_DAC)
1503 s->dma_adc.count -= diff;
1504 if (s->dma_dac.count <= 0) {
1505 pause_dac(s);
1506 s->dma_dac.error++;
1507 } else if (s->dma_dac.count <= (signed)s->dma_dac.fragsize && !s->dma_dac.endcleared) {
1508 clear_advance(s);
1509 s->dma_dac.endcleared = 1;
1510 if (s->status & DO_DUAL_DAC)
1511 s->dma_adc.endcleared = 1;
1512 }
1513 if (s->dma_dac.count + (signed)s->dma_dac.fragsize <= (signed)s->dma_dac.dmasize)
1514 wake_up(&s->dma_dac.wait);
1515 }
1516 }
1517}
1518
1519static irqreturn_t cm_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1520{
1521 struct cm_state *s = (struct cm_state *)dev_id;
1522 unsigned int intsrc, intstat;
1523 unsigned char mask = 0;
1524
1525 /* fastpath out, to ease interrupt sharing */
1526 intsrc = inl(s->iobase + CODEC_CMI_INT_STATUS);
1527 if (!(intsrc & 0x80000000))
1528 return IRQ_NONE;
1529 spin_lock(&s->lock);
1530 intstat = inb(s->iobase + CODEC_CMI_INT_HLDCLR + 2);
1531 /* acknowledge interrupt */
1532 if (intsrc & ADCINT)
1533 mask |= ENADCINT;
1534 if (intsrc & DACINT)
1535 mask |= ENDACINT;
1536 outb(intstat & ~mask, s->iobase + CODEC_CMI_INT_HLDCLR + 2);
1537 outb(intstat | mask, s->iobase + CODEC_CMI_INT_HLDCLR + 2);
1538 cm_update_ptr(s);
1539 spin_unlock(&s->lock);
1540#ifdef CONFIG_SOUND_CMPCI_MIDI
1541 if (intsrc & 0x00010000) { // UART interrupt
1542 if (s->midi_devc && intchk_mpu401((void *)s->midi_devc))
1543 mpuintr(irq, (void *)s->midi_devc, regs);
1544 else
1545 inb(s->iomidi);// dummy read
1546 }
1547#endif
1548 return IRQ_HANDLED;
1549}
1550
1551/* --------------------------------------------------------------------- */
1552
1553static const char invalid_magic[] = KERN_CRIT "cmpci: invalid magic value\n";
1554
1555#define VALIDATE_STATE(s) \
1556({ \
1557 if (!(s) || (s)->magic != CM_MAGIC) { \
1558 printk(invalid_magic); \
1559 return -ENXIO; \
1560 } \
1561})
1562
1563/* --------------------------------------------------------------------- */
1564
1565#define MT_4 1
1566#define MT_5MUTE 2
1567#define MT_4MUTEMONO 3
1568#define MT_6MUTE 4
1569#define MT_5MUTEMONO 5
1570
1571static const struct {
1572 unsigned left;
1573 unsigned right;
1574 unsigned type;
1575 unsigned rec;
1576 unsigned play;
1577} mixtable[SOUND_MIXER_NRDEVICES] = {
1578 [SOUND_MIXER_CD] = { DSP_MIX_CDVOLIDX_L, DSP_MIX_CDVOLIDX_R, MT_5MUTE, 0x04, 0x06 },
1579 [SOUND_MIXER_LINE] = { DSP_MIX_LINEVOLIDX_L, DSP_MIX_LINEVOLIDX_R, MT_5MUTE, 0x10, 0x18 },
1580 [SOUND_MIXER_MIC] = { DSP_MIX_MICVOLIDX, DSP_MIX_MICVOLIDX, MT_5MUTEMONO, 0x01, 0x01 },
1581 [SOUND_MIXER_SYNTH] = { DSP_MIX_FMVOLIDX_L, DSP_MIX_FMVOLIDX_R, MT_5MUTE, 0x40, 0x00 },
1582 [SOUND_MIXER_VOLUME] = { DSP_MIX_MASTERVOLIDX_L, DSP_MIX_MASTERVOLIDX_R, MT_5MUTE, 0x00, 0x00 },
1583 [SOUND_MIXER_PCM] = { DSP_MIX_VOICEVOLIDX_L, DSP_MIX_VOICEVOLIDX_R, MT_5MUTE, 0x00, 0x00 },
1584 [SOUND_MIXER_LINE1] = { DSP_MIX_AUXVOL_L, DSP_MIX_AUXVOL_R, MT_5MUTE, 0x80, 0x60 },
1585 [SOUND_MIXER_SPEAKER]= { DSP_MIX_SPKRVOLIDX, DSP_MIX_SPKRVOLIDX, MT_5MUTEMONO, 0x00, 0x01 }
1586};
1587
1588static const unsigned char volidx[SOUND_MIXER_NRDEVICES] =
1589{
1590 [SOUND_MIXER_CD] = 1,
1591 [SOUND_MIXER_LINE] = 2,
1592 [SOUND_MIXER_MIC] = 3,
1593 [SOUND_MIXER_SYNTH] = 4,
1594 [SOUND_MIXER_VOLUME] = 5,
1595 [SOUND_MIXER_PCM] = 6,
1596 [SOUND_MIXER_LINE1] = 7,
1597 [SOUND_MIXER_SPEAKER]= 8
1598};
1599
1600static unsigned mixer_outmask(struct cm_state *s)
1601{
1602 unsigned long flags;
1603 int i, j, k;
1604
1605 spin_lock_irqsave(&s->lock, flags);
1606 j = rdmixer(s, DSP_MIX_OUTMIXIDX);
1607 spin_unlock_irqrestore(&s->lock, flags);
1608 for (k = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
1609 if (j & mixtable[i].play)
1610 k |= 1 << i;
1611 return k;
1612}
1613
1614static unsigned mixer_recmask(struct cm_state *s)
1615{
1616 unsigned long flags;
1617 int i, j, k;
1618
1619 spin_lock_irqsave(&s->lock, flags);
1620 j = rdmixer(s, DSP_MIX_ADCMIXIDX_L);
1621 spin_unlock_irqrestore(&s->lock, flags);
1622 for (k = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
1623 if (j & mixtable[i].rec)
1624 k |= 1 << i;
1625 return k;
1626}
1627
1628static int mixer_ioctl(struct cm_state *s, unsigned int cmd, unsigned long arg)
1629{
1630 unsigned long flags;
1631 int i, val, j;
1632 unsigned char l, r, rl, rr;
1633 void __user *argp = (void __user *)arg;
1634 int __user *p = argp;
1635
1636 VALIDATE_STATE(s);
1637 if (cmd == SOUND_MIXER_INFO) {
1638 mixer_info info;
1639 memset(&info, 0, sizeof(info));
1640 strlcpy(info.id, "cmpci", sizeof(info.id));
1641 strlcpy(info.name, "C-Media PCI", sizeof(info.name));
1642 info.modify_counter = s->mix.modcnt;
1643 if (copy_to_user(argp, &info, sizeof(info)))
1644 return -EFAULT;
1645 return 0;
1646 }
1647 if (cmd == SOUND_OLD_MIXER_INFO) {
1648 _old_mixer_info info;
1649 memset(&info, 0, sizeof(info));
1650 strlcpy(info.id, "cmpci", sizeof(info.id));
1651 strlcpy(info.name, "C-Media cmpci", sizeof(info.name));
1652 if (copy_to_user(argp, &info, sizeof(info)))
1653 return -EFAULT;
1654 return 0;
1655 }
1656 if (cmd == OSS_GETVERSION)
1657 return put_user(SOUND_VERSION, p);
1658 if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int))
1659 return -EINVAL;
1660 if (_SIOC_DIR(cmd) == _SIOC_READ) {
1661 switch (_IOC_NR(cmd)) {
1662 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
1663 val = mixer_recmask(s);
1664 return put_user(val, p);
1665
1666 case SOUND_MIXER_OUTSRC: /* Arg contains a bit for each recording source */
1667 val = mixer_outmask(s);
1668 return put_user(val, p);
1669
1670 case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
1671 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
1672 if (mixtable[i].type)
1673 val |= 1 << i;
1674 return put_user(val, p);
1675
1676 case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
1677 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
1678 if (mixtable[i].rec)
1679 val |= 1 << i;
1680 return put_user(val, p);
1681
1682 case SOUND_MIXER_OUTMASK: /* Arg contains a bit for each supported recording source */
1683 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
1684 if (mixtable[i].play)
1685 val |= 1 << i;
1686 return put_user(val, p);
1687
1688 case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
1689 for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
1690 if (mixtable[i].type && mixtable[i].type != MT_4MUTEMONO)
1691 val |= 1 << i;
1692 return put_user(val, p);
1693
1694 case SOUND_MIXER_CAPS:
1695 return put_user(0, p);
1696
1697 default:
1698 i = _IOC_NR(cmd);
1699 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].type)
1700 return -EINVAL;
1701 if (!volidx[i])
1702 return -EINVAL;
1703 return put_user(s->mix.vol[volidx[i]-1], p);
1704 }
1705 }
1706 if (_SIOC_DIR(cmd) != (_SIOC_READ|_SIOC_WRITE))
1707 return -EINVAL;
1708 s->mix.modcnt++;
1709 switch (_IOC_NR(cmd)) {
1710 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
1711 if (get_user(val, p))
1712 return -EFAULT;
1713 i = generic_hweight32(val);
1714 for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
1715 if (!(val & (1 << i)))
1716 continue;
1717 if (!mixtable[i].rec) {
1718 val &= ~(1 << i);
1719 continue;
1720 }
1721 j |= mixtable[i].rec;
1722 }
1723 spin_lock_irqsave(&s->lock, flags);
1724 wrmixer(s, DSP_MIX_ADCMIXIDX_L, j);
1725 wrmixer(s, DSP_MIX_ADCMIXIDX_R, (j & 1) | (j>>1) | (j & 0x80));
1726 spin_unlock_irqrestore(&s->lock, flags);
1727 return 0;
1728
1729 case SOUND_MIXER_OUTSRC: /* Arg contains a bit for each recording source */
1730 if (get_user(val, p))
1731 return -EFAULT;
1732 for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
1733 if (!(val & (1 << i)))
1734 continue;
1735 if (!mixtable[i].play) {
1736 val &= ~(1 << i);
1737 continue;
1738 }
1739 j |= mixtable[i].play;
1740 }
1741 spin_lock_irqsave(&s->lock, flags);
1742 wrmixer(s, DSP_MIX_OUTMIXIDX, j);
1743 spin_unlock_irqrestore(&s->lock, flags);
1744 return 0;
1745
1746 default:
1747 i = _IOC_NR(cmd);
1748 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].type)
1749 return -EINVAL;
1750 if (get_user(val, p))
1751 return -EFAULT;
1752 l = val & 0xff;
1753 r = (val >> 8) & 0xff;
1754 if (l > 100)
1755 l = 100;
1756 if (r > 100)
1757 r = 100;
1758 spin_lock_irqsave(&s->lock, flags);
1759 switch (mixtable[i].type) {
1760 case MT_4:
1761 if (l >= 10)
1762 l -= 10;
1763 if (r >= 10)
1764 r -= 10;
1765 frobindir(s, mixtable[i].left, 0xf0, l / 6);
1766 frobindir(s, mixtable[i].right, 0xf0, l / 6);
1767 break;
1768
1769 case MT_4MUTEMONO:
1770 rl = (l < 4 ? 0 : (l - 5) / 3) & 31;
1771 rr = (rl >> 2) & 7;
1772 wrmixer(s, mixtable[i].left, rl<<3);
1773 if (i == SOUND_MIXER_MIC)
1774 maskb(s->iobase + CODEC_CMI_MIXER2, ~0x0e, rr<<1);
1775 break;
1776
1777 case MT_5MUTEMONO:
1778 rl = l < 4 ? 0 : (l - 5) / 3;
1779 wrmixer(s, mixtable[i].left, rl<<3);
1780 l = rdmixer(s, DSP_MIX_OUTMIXIDX) & ~mixtable[i].play;
1781 r = rl ? mixtable[i].play : 0;
1782 wrmixer(s, DSP_MIX_OUTMIXIDX, l | r);
1783 /* for recording */
1784 if (i == SOUND_MIXER_MIC) {
1785 if (s->chip_version >= 37) {
1786 rr = rl >> 1;
1787 maskb(s->iobase + CODEC_CMI_MIXER2, ~0x0e, (rr&0x07)<<1);
1788 frobindir(s, DSP_MIX_EXTENSION, ~0x01, rr>>3);
1789 } else {
1790 rr = rl >> 2;
1791 maskb(s->iobase + CODEC_CMI_MIXER2, ~0x0e, rr<<1);
1792 }
1793 }
1794 break;
1795
1796 case MT_5MUTE:
1797 rl = l < 4 ? 0 : (l - 5) / 3;
1798 rr = r < 4 ? 0 : (r - 5) / 3;
1799 wrmixer(s, mixtable[i].left, rl<<3);
1800 wrmixer(s, mixtable[i].right, rr<<3);
1801 l = rdmixer(s, DSP_MIX_OUTMIXIDX);
1802 l &= ~mixtable[i].play;
1803 r = (rl|rr) ? mixtable[i].play : 0;
1804 wrmixer(s, DSP_MIX_OUTMIXIDX, l | r);
1805 break;
1806
1807 case MT_6MUTE:
1808 if (l < 6)
1809 rl = 0x00;
1810 else
1811 rl = l * 2 / 3;
1812 if (r < 6)
1813 rr = 0x00;
1814 else
1815 rr = r * 2 / 3;
1816 wrmixer(s, mixtable[i].left, rl);
1817 wrmixer(s, mixtable[i].right, rr);
1818 break;
1819 }
1820 spin_unlock_irqrestore(&s->lock, flags);
1821
1822 if (!volidx[i])
1823 return -EINVAL;
1824 s->mix.vol[volidx[i]-1] = val;
1825 return put_user(s->mix.vol[volidx[i]-1], p);
1826 }
1827}
1828
1829/* --------------------------------------------------------------------- */
1830
1831static int cm_open_mixdev(struct inode *inode, struct file *file)
1832{
1833 int minor = iminor(inode);
1834 struct list_head *list;
1835 struct cm_state *s;
1836
1837 for (list = devs.next; ; list = list->next) {
1838 if (list == &devs)
1839 return -ENODEV;
1840 s = list_entry(list, struct cm_state, devs);
1841 if (s->dev_mixer == minor)
1842 break;
1843 }
1844 VALIDATE_STATE(s);
1845 file->private_data = s;
1846 return nonseekable_open(inode, file);
1847}
1848
1849static int cm_release_mixdev(struct inode *inode, struct file *file)
1850{
1851 struct cm_state *s = (struct cm_state *)file->private_data;
1852
1853 VALIDATE_STATE(s);
1854 return 0;
1855}
1856
1857static int cm_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1858{
1859 return mixer_ioctl((struct cm_state *)file->private_data, cmd, arg);
1860}
1861
1862static /*const*/ struct file_operations cm_mixer_fops = {
1863 .owner = THIS_MODULE,
1864 .llseek = no_llseek,
1865 .ioctl = cm_ioctl_mixdev,
1866 .open = cm_open_mixdev,
1867 .release = cm_release_mixdev,
1868};
1869
1870
1871/* --------------------------------------------------------------------- */
1872
1873static int drain_dac(struct cm_state *s, int nonblock)
1874{
1875 DECLARE_WAITQUEUE(wait, current);
1876 unsigned long flags;
1877 int count, tmo;
1878
1879 if (s->dma_dac.mapped || !s->dma_dac.ready)
1880 return 0;
1881 add_wait_queue(&s->dma_dac.wait, &wait);
1882 for (;;) {
1883 __set_current_state(TASK_INTERRUPTIBLE);
1884 spin_lock_irqsave(&s->lock, flags);
1885 count = s->dma_dac.count;
1886 spin_unlock_irqrestore(&s->lock, flags);
1887 if (count <= 0)
1888 break;
1889 if (signal_pending(current))
1890 break;
1891 if (nonblock) {
1892 remove_wait_queue(&s->dma_dac.wait, &wait);
1893 set_current_state(TASK_RUNNING);
1894 return -EBUSY;
1895 }
1896 tmo = 3 * HZ * (count + s->dma_dac.fragsize) / 2 / s->ratedac;
1897 tmo >>= sample_shift[(s->fmt >> CM_CFMT_DACSHIFT) & CM_CFMT_MASK];
1898 if (!schedule_timeout(tmo + 1))
1899 DBG(printk(KERN_DEBUG "cmpci: dma timed out??\n");)
1900 }
1901 remove_wait_queue(&s->dma_dac.wait, &wait);
1902 set_current_state(TASK_RUNNING);
1903 if (signal_pending(current))
1904 return -ERESTARTSYS;
1905 return 0;
1906}
1907
1908/* --------------------------------------------------------------------- */
1909
1910static ssize_t cm_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
1911{
1912 struct cm_state *s = (struct cm_state *)file->private_data;
1913 DECLARE_WAITQUEUE(wait, current);
1914 ssize_t ret;
1915 unsigned long flags;
1916 unsigned swptr;
1917 int cnt;
1918
1919 VALIDATE_STATE(s);
1920 if (s->dma_adc.mapped)
1921 return -ENXIO;
1922 if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
1923 return ret;
1924 if (!access_ok(VERIFY_WRITE, buffer, count))
1925 return -EFAULT;
1926 ret = 0;
1927
1928 add_wait_queue(&s->dma_adc.wait, &wait);
1929 while (count > 0) {
1930 spin_lock_irqsave(&s->lock, flags);
1931 swptr = s->dma_adc.swptr;
1932 cnt = s->dma_adc.dmasize-swptr;
1933 if (s->dma_adc.count < cnt)
1934 cnt = s->dma_adc.count;
1935 if (cnt <= 0)
1936 __set_current_state(TASK_INTERRUPTIBLE);
1937 spin_unlock_irqrestore(&s->lock, flags);
1938 if (cnt > count)
1939 cnt = count;
1940 if (cnt <= 0) {
1941 if (s->dma_adc.enabled)
1942 start_adc(s);
1943 if (file->f_flags & O_NONBLOCK) {
1944 if (!ret)
1945 ret = -EAGAIN;
1946 goto out;
1947 }
1948 if (!schedule_timeout(HZ)) {
1949 printk(KERN_DEBUG "cmpci: read: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
1950 s->dma_adc.dmasize, s->dma_adc.fragsize, s->dma_adc.count,
1951 s->dma_adc.hwptr, s->dma_adc.swptr);
1952 spin_lock_irqsave(&s->lock, flags);
1953 stop_adc_unlocked(s);
1954 set_dmaadc(s, s->dma_adc.dmaaddr, s->dma_adc.dmasamples);
1955 /* program sample counts */
1956 set_countadc(s, s->dma_adc.fragsamples);
1957 s->dma_adc.count = s->dma_adc.hwptr = s->dma_adc.swptr = 0;
1958 spin_unlock_irqrestore(&s->lock, flags);
1959 }
1960 if (signal_pending(current)) {
1961 if (!ret)
1962 ret = -ERESTARTSYS;
1963 goto out;
1964 }
1965 continue;
1966 }
1967 if (s->status & DO_BIGENDIAN_R) {
1968 int i, err;
1969 unsigned char *src;
1970 char __user *dst = buffer;
1971 unsigned char data[2];
1972
1973 src = (unsigned char *) (s->dma_adc.rawbuf + swptr);
1974 // copy left/right sample at one time
1975 for (i = 0; i < cnt / 2; i++) {
1976 data[0] = src[1];
1977 data[1] = src[0];
1978 if ((err = __put_user(data[0], dst++))) {
1979 ret = err;
1980 goto out;
1981 }
1982 if ((err = __put_user(data[1], dst++))) {
1983 ret = err;
1984 goto out;
1985 }
1986 src += 2;
1987 }
1988 } else if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
1989 if (!ret)
1990 ret = -EFAULT;
1991 goto out;
1992 }
1993 swptr = (swptr + cnt) % s->dma_adc.dmasize;
1994 spin_lock_irqsave(&s->lock, flags);
1995 s->dma_adc.swptr = swptr;
1996 s->dma_adc.count -= cnt;
1997 count -= cnt;
1998 buffer += cnt;
1999 ret += cnt;
2000 if (s->dma_adc.enabled)
2001 start_adc_unlocked(s);
2002 spin_unlock_irqrestore(&s->lock, flags);
2003 }
2004out:
2005 remove_wait_queue(&s->dma_adc.wait, &wait);
2006 set_current_state(TASK_RUNNING);
2007 return ret;
2008}
2009
2010static ssize_t cm_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
2011{
2012 struct cm_state *s = (struct cm_state *)file->private_data;
2013 DECLARE_WAITQUEUE(wait, current);
2014 ssize_t ret;
2015 unsigned long flags;
2016 unsigned swptr;
2017 int cnt;
2018
2019 VALIDATE_STATE(s);
2020 if (s->dma_dac.mapped)
2021 return -ENXIO;
2022 if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
2023 return ret;
2024 if (!access_ok(VERIFY_READ, buffer, count))
2025 return -EFAULT;
2026 if (s->status & DO_DUAL_DAC) {
2027 if (s->dma_adc.mapped)
2028 return -ENXIO;
2029 if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
2030 return ret;
2031 }
2032 if (!access_ok(VERIFY_READ, buffer, count))
2033 return -EFAULT;
2034 ret = 0;
2035
2036 add_wait_queue(&s->dma_dac.wait, &wait);
2037 while (count > 0) {
2038 spin_lock_irqsave(&s->lock, flags);
2039 if (s->dma_dac.count < 0) {
2040 s->dma_dac.count = 0;
2041 s->dma_dac.swptr = s->dma_dac.hwptr;
2042 }
2043 if (s->status & DO_DUAL_DAC) {
2044 s->dma_adc.swptr = s->dma_dac.swptr;
2045 s->dma_adc.count = s->dma_dac.count;
2046 s->dma_adc.endcleared = s->dma_dac.endcleared;
2047 }
2048 swptr = s->dma_dac.swptr;
2049 cnt = s->dma_dac.dmasize-swptr;
2050 if (s->status & DO_AC3_SW) {
2051 if (s->dma_dac.count + 2 * cnt > s->dma_dac.dmasize)
2052 cnt = (s->dma_dac.dmasize - s->dma_dac.count) / 2;
2053 } else {
2054 if (s->dma_dac.count + cnt > s->dma_dac.dmasize)
2055 cnt = s->dma_dac.dmasize - s->dma_dac.count;
2056 }
2057 if (cnt <= 0)
2058 __set_current_state(TASK_INTERRUPTIBLE);
2059 spin_unlock_irqrestore(&s->lock, flags);
2060 if (cnt > count)
2061 cnt = count;
2062 if ((s->status & DO_DUAL_DAC) && (cnt > count / 2))
2063 cnt = count / 2;
2064 if (cnt <= 0) {
2065 if (s->dma_dac.enabled)
2066 start_dac(s);
2067 if (file->f_flags & O_NONBLOCK) {
2068 if (!ret)
2069 ret = -EAGAIN;
2070 goto out;
2071 }
2072 if (!schedule_timeout(HZ)) {
2073 printk(KERN_DEBUG "cmpci: write: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
2074 s->dma_dac.dmasize, s->dma_dac.fragsize, s->dma_dac.count,
2075 s->dma_dac.hwptr, s->dma_dac.swptr);
2076 spin_lock_irqsave(&s->lock, flags);
2077 stop_dac_unlocked(s);
2078 set_dmadac(s, s->dma_dac.dmaaddr, s->dma_dac.dmasamples);
2079 /* program sample counts */
2080 set_countdac(s, s->dma_dac.fragsamples);
2081 s->dma_dac.count = s->dma_dac.hwptr = s->dma_dac.swptr = 0;
2082 if (s->status & DO_DUAL_DAC) {
2083 set_dmadac1(s, s->dma_adc.dmaaddr, s->dma_adc.dmasamples);
2084 s->dma_adc.count = s->dma_adc.hwptr = s->dma_adc.swptr = 0;
2085 }
2086 spin_unlock_irqrestore(&s->lock, flags);
2087 }
2088 if (signal_pending(current)) {
2089 if (!ret)
2090 ret = -ERESTARTSYS;
2091 goto out;
2092 }
2093 continue;
2094 }
2095 if (s->status & DO_AC3_SW) {
2096 int err;
2097
2098 // clip exceeded data, caught by 033 and 037
2099 if (swptr + 2 * cnt > s->dma_dac.dmasize)
2100 cnt = (s->dma_dac.dmasize - swptr) / 2;
2101 if ((err = trans_ac3(s, s->dma_dac.rawbuf + swptr, buffer, cnt))) {
2102 ret = err;
2103 goto out;
2104 }
2105 swptr = (swptr + 2 * cnt) % s->dma_dac.dmasize;
2106 } else if ((s->status & DO_DUAL_DAC) && (s->status & DO_BIGENDIAN_W)) {
2107 int i, err;
2108 const char __user *src = buffer;
2109 unsigned char *dst0, *dst1;
2110 unsigned char data[8];
2111
2112 dst0 = (unsigned char *) (s->dma_dac.rawbuf + swptr);
2113 dst1 = (unsigned char *) (s->dma_adc.rawbuf + swptr);
2114 // copy left/right sample at one time
2115 for (i = 0; i < cnt / 4; i++) {
2116 if ((err = __get_user(data[0], src++))) {
2117 ret = err;
2118 goto out;
2119 }
2120 if ((err = __get_user(data[1], src++))) {
2121 ret = err;
2122 goto out;
2123 }
2124 if ((err = __get_user(data[2], src++))) {
2125 ret = err;
2126 goto out;
2127 }
2128 if ((err = __get_user(data[3], src++))) {
2129 ret = err;
2130 goto out;
2131 }
2132 if ((err = __get_user(data[4], src++))) {
2133 ret = err;
2134 goto out;
2135 }
2136 if ((err = __get_user(data[5], src++))) {
2137 ret = err;
2138 goto out;
2139 }
2140 if ((err = __get_user(data[6], src++))) {
2141 ret = err;
2142 goto out;
2143 }
2144 if ((err = __get_user(data[7], src++))) {
2145 ret = err;
2146 goto out;
2147 }
2148 dst0[0] = data[1];
2149 dst0[1] = data[0];
2150 dst0[2] = data[3];
2151 dst0[3] = data[2];
2152 dst1[0] = data[5];
2153 dst1[1] = data[4];
2154 dst1[2] = data[7];
2155 dst1[3] = data[6];
2156 dst0 += 4;
2157 dst1 += 4;
2158 }
2159 swptr = (swptr + cnt) % s->dma_dac.dmasize;
2160 } else if (s->status & DO_DUAL_DAC) {
2161 int i, err;
2162 unsigned long __user *src = (unsigned long __user *) buffer;
2163 unsigned long *dst0, *dst1;
2164
2165 dst0 = (unsigned long *) (s->dma_dac.rawbuf + swptr);
2166 dst1 = (unsigned long *) (s->dma_adc.rawbuf + swptr);
2167 // copy left/right sample at one time
2168 for (i = 0; i < cnt / 4; i++) {
2169 if ((err = __get_user(*dst0++, src++))) {
2170 ret = err;
2171 goto out;
2172 }
2173 if ((err = __get_user(*dst1++, src++))) {
2174 ret = err;
2175 goto out;
2176 }
2177 }
2178 swptr = (swptr + cnt) % s->dma_dac.dmasize;
2179 } else if (s->status & DO_BIGENDIAN_W) {
2180 int i, err;
2181 const char __user *src = buffer;
2182 unsigned char *dst;
2183 unsigned char data[2];
2184
2185 dst = (unsigned char *) (s->dma_dac.rawbuf + swptr);
2186 // swap hi/lo bytes for each sample
2187 for (i = 0; i < cnt / 2; i++) {
2188 if ((err = __get_user(data[0], src++))) {
2189 ret = err;
2190 goto out;
2191 }
2192 if ((err = __get_user(data[1], src++))) {
2193 ret = err;
2194 goto out;
2195 }
2196 dst[0] = data[1];
2197 dst[1] = data[0];
2198 dst += 2;
2199 }
2200 swptr = (swptr + cnt) % s->dma_dac.dmasize;
2201 } else {
2202 if (copy_from_user(s->dma_dac.rawbuf + swptr, buffer, cnt)) {
2203 if (!ret)
2204 ret = -EFAULT;
2205 goto out;
2206 }
2207 swptr = (swptr + cnt) % s->dma_dac.dmasize;
2208 }
2209 spin_lock_irqsave(&s->lock, flags);
2210 s->dma_dac.swptr = swptr;
2211 s->dma_dac.count += cnt;
2212 if (s->status & DO_AC3_SW)
2213 s->dma_dac.count += cnt;
2214 s->dma_dac.endcleared = 0;
2215 spin_unlock_irqrestore(&s->lock, flags);
2216 count -= cnt;
2217 buffer += cnt;
2218 ret += cnt;
2219 if (s->status & DO_DUAL_DAC) {
2220 count -= cnt;
2221 buffer += cnt;
2222 ret += cnt;
2223 }
2224 if (s->dma_dac.enabled)
2225 start_dac(s);
2226 }
2227out:
2228 remove_wait_queue(&s->dma_dac.wait, &wait);
2229 set_current_state(TASK_RUNNING);
2230 return ret;
2231}
2232
2233static unsigned int cm_poll(struct file *file, struct poll_table_struct *wait)
2234{
2235 struct cm_state *s = (struct cm_state *)file->private_data;
2236 unsigned long flags;
2237 unsigned int mask = 0;
2238
2239 VALIDATE_STATE(s);
2240 if (file->f_mode & FMODE_WRITE) {
2241 if (!s->dma_dac.ready && prog_dmabuf(s, 0))
2242 return 0;
2243 poll_wait(file, &s->dma_dac.wait, wait);
2244 }
2245 if (file->f_mode & FMODE_READ) {
2246 if (!s->dma_adc.ready && prog_dmabuf(s, 1))
2247 return 0;
2248 poll_wait(file, &s->dma_adc.wait, wait);
2249 }
2250 spin_lock_irqsave(&s->lock, flags);
2251 cm_update_ptr(s);
2252 if (file->f_mode & FMODE_READ) {
2253 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
2254 mask |= POLLIN | POLLRDNORM;
2255 }
2256 if (file->f_mode & FMODE_WRITE) {
2257 if (s->dma_dac.mapped) {
2258 if (s->dma_dac.count >= (signed)s->dma_dac.fragsize)
2259 mask |= POLLOUT | POLLWRNORM;
2260 } else {
2261 if ((signed)s->dma_dac.dmasize >= s->dma_dac.count + (signed)s->dma_dac.fragsize)
2262 mask |= POLLOUT | POLLWRNORM;
2263 }
2264 }
2265 spin_unlock_irqrestore(&s->lock, flags);
2266 return mask;
2267}
2268
2269static int cm_mmap(struct file *file, struct vm_area_struct *vma)
2270{
2271 struct cm_state *s = (struct cm_state *)file->private_data;
2272 struct dmabuf *db;
2273 int ret = -EINVAL;
2274 unsigned long size;
2275
2276 VALIDATE_STATE(s);
2277 lock_kernel();
2278 if (vma->vm_flags & VM_WRITE) {
2279 if ((ret = prog_dmabuf(s, 0)) != 0)
2280 goto out;
2281 db = &s->dma_dac;
2282 } else if (vma->vm_flags & VM_READ) {
2283 if ((ret = prog_dmabuf(s, 1)) != 0)
2284 goto out;
2285 db = &s->dma_adc;
2286 } else
2287 goto out;
2288 ret = -EINVAL;
2289 if (vma->vm_pgoff != 0)
2290 goto out;
2291 size = vma->vm_end - vma->vm_start;
2292 if (size > (PAGE_SIZE << db->buforder))
2293 goto out;
2294 ret = -EINVAL;
2295 if (remap_pfn_range(vma, vma->vm_start,
2296 virt_to_phys(db->rawbuf) >> PAGE_SHIFT,
2297 size, vma->vm_page_prot))
2298 goto out;
2299 db->mapped = 1;
2300 ret = 0;
2301out:
2302 unlock_kernel();
2303 return ret;
2304}
2305
2306#define SNDCTL_SPDIF_COPYRIGHT _SIOW('S', 0, int) // set/reset S/PDIF copy protection
2307#define SNDCTL_SPDIF_LOOP _SIOW('S', 1, int) // set/reset S/PDIF loop
2308#define SNDCTL_SPDIF_MONITOR _SIOW('S', 2, int) // set S/PDIF monitor
2309#define SNDCTL_SPDIF_LEVEL _SIOW('S', 3, int) // set/reset S/PDIF out level
2310#define SNDCTL_SPDIF_INV _SIOW('S', 4, int) // set/reset S/PDIF in inverse
2311#define SNDCTL_SPDIF_SEL2 _SIOW('S', 5, int) // set S/PDIF in #2
2312#define SNDCTL_SPDIF_VALID _SIOW('S', 6, int) // set S/PDIF valid
2313#define SNDCTL_SPDIFOUT _SIOW('S', 7, int) // set S/PDIF out
2314#define SNDCTL_SPDIFIN _SIOW('S', 8, int) // set S/PDIF out
2315
2316static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
2317{
2318 struct cm_state *s = (struct cm_state *)file->private_data;
2319 unsigned long flags;
2320 audio_buf_info abinfo;
2321 count_info cinfo;
2322 int val, mapped, ret;
2323 unsigned char fmtm, fmtd;
2324 void __user *argp = (void __user *)arg;
2325 int __user *p = argp;
2326
2327 VALIDATE_STATE(s);
2328 mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) ||
2329 ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
2330 switch (cmd) {
2331 case OSS_GETVERSION:
2332 return put_user(SOUND_VERSION, p);
2333
2334 case SNDCTL_DSP_SYNC:
2335 if (file->f_mode & FMODE_WRITE)
2336 return drain_dac(s, 0/*file->f_flags & O_NONBLOCK*/);
2337 return 0;
2338
2339 case SNDCTL_DSP_SETDUPLEX:
2340 return 0;
2341
2342 case SNDCTL_DSP_GETCAPS:
2343 return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP | DSP_CAP_BIND, p);
2344
2345 case SNDCTL_DSP_RESET:
2346 if (file->f_mode & FMODE_WRITE) {
2347 stop_dac(s);
2348 synchronize_irq(s->irq);
2349 s->dma_dac.swptr = s->dma_dac.hwptr = s->dma_dac.count = s->dma_dac.total_bytes = 0;
2350 if (s->status & DO_DUAL_DAC)
2351 s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
2352 }
2353 if (file->f_mode & FMODE_READ) {
2354 stop_adc(s);
2355 synchronize_irq(s->irq);
2356 s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
2357 }
2358 return 0;
2359
2360 case SNDCTL_DSP_SPEED:
2361 if (get_user(val, p))
2362 return -EFAULT;
2363 if (val >= 0) {
2364 if (file->f_mode & FMODE_READ) {
2365 spin_lock_irqsave(&s->lock, flags);
2366 stop_adc_unlocked(s);
2367 s->dma_adc.ready = 0;
2368 set_adc_rate_unlocked(s, val);
2369 spin_unlock_irqrestore(&s->lock, flags);
2370 }
2371 if (file->f_mode & FMODE_WRITE) {
2372 stop_dac(s);
2373 s->dma_dac.ready = 0;
2374 if (s->status & DO_DUAL_DAC)
2375 s->dma_adc.ready = 0;
2376 set_dac_rate(s, val);
2377 }
2378 }
2379 return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
2380
2381 case SNDCTL_DSP_STEREO:
2382 if (get_user(val, p))
2383 return -EFAULT;
2384 fmtd = 0;
2385 fmtm = ~0;
2386 if (file->f_mode & FMODE_READ) {
2387 stop_adc(s);
2388 s->dma_adc.ready = 0;
2389 if (val)
2390 fmtd |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
2391 else
2392 fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_ADCSHIFT);
2393 }
2394 if (file->f_mode & FMODE_WRITE) {
2395 stop_dac(s);
2396 s->dma_dac.ready = 0;
2397 if (val)
2398 fmtd |= CM_CFMT_STEREO << CM_CFMT_DACSHIFT;
2399 else
2400 fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_DACSHIFT);
2401 if (s->status & DO_DUAL_DAC) {
2402 s->dma_adc.ready = 0;
2403 if (val)
2404 fmtd |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
2405 else
2406 fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_ADCSHIFT);
2407 }
2408 }
2409 set_fmt(s, fmtm, fmtd);
2410 return 0;
2411
2412 case SNDCTL_DSP_CHANNELS:
2413 if (get_user(val, p))
2414 return -EFAULT;
2415 if (val != 0) {
2416 fmtd = 0;
2417 fmtm = ~0;
2418 if (file->f_mode & FMODE_READ) {
2419 stop_adc(s);
2420 s->dma_adc.ready = 0;
2421 if (val >= 2)
2422 fmtd |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
2423 else
2424 fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_ADCSHIFT);
2425 }
2426 if (file->f_mode & FMODE_WRITE) {
2427 stop_dac(s);
2428 s->dma_dac.ready = 0;
2429 if (val >= 2)
2430 fmtd |= CM_CFMT_STEREO << CM_CFMT_DACSHIFT;
2431 else
2432 fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_DACSHIFT);
2433 if (s->status & DO_DUAL_DAC) {
2434 s->dma_adc.ready = 0;
2435 if (val >= 2)
2436 fmtd |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
2437 else
2438 fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_ADCSHIFT);
2439 }
2440 }
2441 set_fmt(s, fmtm, fmtd);
2442 if ((s->capability & CAN_MULTI_CH)
2443 && (file->f_mode & FMODE_WRITE)) {
2444 val = set_dac_channels(s, val);
2445 return put_user(val, p);
2446 }
2447 }
2448 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_STEREO << CM_CFMT_ADCSHIFT)
2449 : (CM_CFMT_STEREO << CM_CFMT_DACSHIFT))) ? 2 : 1, p);
2450
2451 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
2452 return put_user(AFMT_S16_BE|AFMT_S16_LE|AFMT_U8|
2453 ((s->capability & CAN_AC3) ? AFMT_AC3 : 0), p);
2454
2455 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
2456 if (get_user(val, p))
2457 return -EFAULT;
2458 if (val != AFMT_QUERY) {
2459 fmtd = 0;
2460 fmtm = ~0;
2461 if (file->f_mode & FMODE_READ) {
2462 stop_adc(s);
2463 s->dma_adc.ready = 0;
2464 if (val == AFMT_S16_BE || val == AFMT_S16_LE)
2465 fmtd |= CM_CFMT_16BIT << CM_CFMT_ADCSHIFT;
2466 else
2467 fmtm &= ~(CM_CFMT_16BIT << CM_CFMT_ADCSHIFT);
2468 if (val == AFMT_S16_BE)
2469 s->status |= DO_BIGENDIAN_R;
2470 else
2471 s->status &= ~DO_BIGENDIAN_R;
2472 }
2473 if (file->f_mode & FMODE_WRITE) {
2474 stop_dac(s);
2475 s->dma_dac.ready = 0;
2476 if (val == AFMT_S16_BE || val == AFMT_S16_LE || val == AFMT_AC3)
2477 fmtd |= CM_CFMT_16BIT << CM_CFMT_DACSHIFT;
2478 else
2479 fmtm &= ~(CM_CFMT_16BIT << CM_CFMT_DACSHIFT);
2480 if (val == AFMT_AC3) {
2481 fmtd |= CM_CFMT_STEREO << CM_CFMT_DACSHIFT;
2482 set_ac3(s, 48000);
2483 } else
2484 set_ac3(s, 0);
2485 if (s->status & DO_DUAL_DAC) {
2486 s->dma_adc.ready = 0;
2487 if (val == AFMT_S16_BE || val == AFMT_S16_LE)
2488 fmtd |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
2489 else
2490 fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_ADCSHIFT);
2491 }
2492 if (val == AFMT_S16_BE)
2493 s->status |= DO_BIGENDIAN_W;
2494 else
2495 s->status &= ~DO_BIGENDIAN_W;
2496 }
2497 set_fmt(s, fmtm, fmtd);
2498 }
2499 if (s->status & DO_AC3) return put_user(AFMT_AC3, p);
2500 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_16BIT << CM_CFMT_ADCSHIFT)
2501 : (CM_CFMT_16BIT << CM_CFMT_DACSHIFT))) ? val : AFMT_U8, p);
2502
2503 case SNDCTL_DSP_POST:
2504 return 0;
2505
2506 case SNDCTL_DSP_GETTRIGGER:
2507 val = 0;
2508 if (s->status & DO_DUAL_DAC) {
2509 if (file->f_mode & FMODE_WRITE &&
2510 (s->enable & ENDAC) &&
2511 (s->enable & ENADC))
2512 val |= PCM_ENABLE_OUTPUT;
2513 return put_user(val, p);
2514 }
2515 if (file->f_mode & FMODE_READ && s->enable & ENADC)
2516 val |= PCM_ENABLE_INPUT;
2517 if (file->f_mode & FMODE_WRITE && s->enable & ENDAC)
2518 val |= PCM_ENABLE_OUTPUT;
2519 return put_user(val, p);
2520
2521 case SNDCTL_DSP_SETTRIGGER:
2522 if (get_user(val, p))
2523 return -EFAULT;
2524 if (file->f_mode & FMODE_READ) {
2525 if (val & PCM_ENABLE_INPUT) {
2526 if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
2527 return ret;
2528 s->dma_adc.enabled = 1;
2529 start_adc(s);
2530 } else {
2531 s->dma_adc.enabled = 0;
2532 stop_adc(s);
2533 }
2534 }
2535 if (file->f_mode & FMODE_WRITE) {
2536 if (val & PCM_ENABLE_OUTPUT) {
2537 if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
2538 return ret;
2539 if (s->status & DO_DUAL_DAC) {
2540 if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
2541 return ret;
2542 }
2543 s->dma_dac.enabled = 1;
2544 start_dac(s);
2545 } else {
2546 s->dma_dac.enabled = 0;
2547 stop_dac(s);
2548 }
2549 }
2550 return 0;
2551
2552 case SNDCTL_DSP_GETOSPACE:
2553 if (!(file->f_mode & FMODE_WRITE))
2554 return -EINVAL;
2555 if (!(s->enable & ENDAC) && (val = prog_dmabuf(s, 0)) != 0)
2556 return val;
2557 spin_lock_irqsave(&s->lock, flags);
2558 cm_update_ptr(s);
2559 abinfo.fragsize = s->dma_dac.fragsize;
2560 abinfo.bytes = s->dma_dac.dmasize - s->dma_dac.count;
2561 abinfo.fragstotal = s->dma_dac.numfrag;
2562 abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift;
2563 spin_unlock_irqrestore(&s->lock, flags);
2564 return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
2565
2566 case SNDCTL_DSP_GETISPACE:
2567 if (!(file->f_mode & FMODE_READ))
2568 return -EINVAL;
2569 if (!(s->enable & ENADC) && (val = prog_dmabuf(s, 1)) != 0)
2570 return val;
2571 spin_lock_irqsave(&s->lock, flags);
2572 cm_update_ptr(s);
2573 abinfo.fragsize = s->dma_adc.fragsize;
2574 abinfo.bytes = s->dma_adc.count;
2575 abinfo.fragstotal = s->dma_adc.numfrag;
2576 abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
2577 spin_unlock_irqrestore(&s->lock, flags);
2578 return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
2579
2580 case SNDCTL_DSP_NONBLOCK:
2581 file->f_flags |= O_NONBLOCK;
2582 return 0;
2583
2584 case SNDCTL_DSP_GETODELAY:
2585 if (!(file->f_mode & FMODE_WRITE))
2586 return -EINVAL;
2587 spin_lock_irqsave(&s->lock, flags);
2588 cm_update_ptr(s);
2589 val = s->dma_dac.count;
2590 spin_unlock_irqrestore(&s->lock, flags);
2591 return put_user(val, p);
2592
2593 case SNDCTL_DSP_GETIPTR:
2594 if (!(file->f_mode & FMODE_READ))
2595 return -EINVAL;
2596 spin_lock_irqsave(&s->lock, flags);
2597 cm_update_ptr(s);
2598 cinfo.bytes = s->dma_adc.total_bytes;
2599 cinfo.blocks = s->dma_adc.count >> s->dma_adc.fragshift;
2600 cinfo.ptr = s->dma_adc.hwptr;
2601 if (s->dma_adc.mapped)
2602 s->dma_adc.count &= s->dma_adc.fragsize-1;
2603 spin_unlock_irqrestore(&s->lock, flags);
2604 return copy_to_user(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0;
2605
2606 case SNDCTL_DSP_GETOPTR:
2607 if (!(file->f_mode & FMODE_WRITE))
2608 return -EINVAL;
2609 spin_lock_irqsave(&s->lock, flags);
2610 cm_update_ptr(s);
2611 cinfo.bytes = s->dma_dac.total_bytes;
2612 cinfo.blocks = s->dma_dac.count >> s->dma_dac.fragshift;
2613 cinfo.ptr = s->dma_dac.hwptr;
2614 if (s->dma_dac.mapped)
2615 s->dma_dac.count &= s->dma_dac.fragsize-1;
2616 if (s->status & DO_DUAL_DAC) {
2617 if (s->dma_adc.mapped)
2618 s->dma_adc.count &= s->dma_adc.fragsize-1;
2619 }
2620 spin_unlock_irqrestore(&s->lock, flags);
2621 return copy_to_user(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0;
2622
2623 case SNDCTL_DSP_GETBLKSIZE:
2624 if (file->f_mode & FMODE_WRITE) {
2625 if ((val = prog_dmabuf(s, 0)))
2626 return val;
2627 if (s->status & DO_DUAL_DAC) {
2628 if ((val = prog_dmabuf(s, 1)))
2629 return val;
2630 return put_user(2 * s->dma_dac.fragsize, p);
2631 }
2632 return put_user(s->dma_dac.fragsize, p);
2633 }
2634 if ((val = prog_dmabuf(s, 1)))
2635 return val;
2636 return put_user(s->dma_adc.fragsize, p);
2637
2638 case SNDCTL_DSP_SETFRAGMENT:
2639 if (get_user(val, p))
2640 return -EFAULT;
2641 if (file->f_mode & FMODE_READ) {
2642 s->dma_adc.ossfragshift = val & 0xffff;
2643 s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
2644 if (s->dma_adc.ossfragshift < 4)
2645 s->dma_adc.ossfragshift = 4;
2646 if (s->dma_adc.ossfragshift > 15)
2647 s->dma_adc.ossfragshift = 15;
2648 if (s->dma_adc.ossmaxfrags < 4)
2649 s->dma_adc.ossmaxfrags = 4;
2650 }
2651 if (file->f_mode & FMODE_WRITE) {
2652 s->dma_dac.ossfragshift = val & 0xffff;
2653 s->dma_dac.ossmaxfrags = (val >> 16) & 0xffff;
2654 if (s->dma_dac.ossfragshift < 4)
2655 s->dma_dac.ossfragshift = 4;
2656 if (s->dma_dac.ossfragshift > 15)
2657 s->dma_dac.ossfragshift = 15;
2658 if (s->dma_dac.ossmaxfrags < 4)
2659 s->dma_dac.ossmaxfrags = 4;
2660 if (s->status & DO_DUAL_DAC) {
2661 s->dma_adc.ossfragshift = s->dma_dac.ossfragshift;
2662 s->dma_adc.ossmaxfrags = s->dma_dac.ossmaxfrags;
2663 }
2664 }
2665 return 0;
2666
2667 case SNDCTL_DSP_SUBDIVIDE:
2668 if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
2669 (file->f_mode & FMODE_WRITE && s->dma_dac.subdivision))
2670 return -EINVAL;
2671 if (get_user(val, p))
2672 return -EFAULT;
2673 if (val != 1 && val != 2 && val != 4)
2674 return -EINVAL;
2675 if (file->f_mode & FMODE_READ)
2676 s->dma_adc.subdivision = val;
2677 if (file->f_mode & FMODE_WRITE) {
2678 s->dma_dac.subdivision = val;
2679 if (s->status & DO_DUAL_DAC)
2680 s->dma_adc.subdivision = val;
2681 }
2682 return 0;
2683
2684 case SOUND_PCM_READ_RATE:
2685 return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
2686
2687 case SOUND_PCM_READ_CHANNELS:
2688 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_STEREO << CM_CFMT_ADCSHIFT) : (CM_CFMT_STEREO << CM_CFMT_DACSHIFT))) ? 2 : 1, p);
2689
2690 case SOUND_PCM_READ_BITS:
2691 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_16BIT << CM_CFMT_ADCSHIFT) : (CM_CFMT_16BIT << CM_CFMT_DACSHIFT))) ? 16 : 8, p);
2692
2693 case SOUND_PCM_READ_FILTER:
2694 return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
2695
2696 case SNDCTL_DSP_GETCHANNELMASK:
2697 return put_user(DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE|DSP_BIND_SPDIF, p);
2698
2699 case SNDCTL_DSP_BIND_CHANNEL:
2700 if (get_user(val, p))
2701 return -EFAULT;
2702 if (val == DSP_BIND_QUERY) {
2703 val = DSP_BIND_FRONT;
2704 if (s->status & DO_SPDIF_OUT)
2705 val |= DSP_BIND_SPDIF;
2706 else {
2707 if (s->curr_channels == 4)
2708 val |= DSP_BIND_SURR;
2709 if (s->curr_channels > 4)
2710 val |= DSP_BIND_CENTER_LFE;
2711 }
2712 } else {
2713 if (file->f_mode & FMODE_READ) {
2714 stop_adc(s);
2715 s->dma_adc.ready = 0;
2716 if (val & DSP_BIND_SPDIF) {
2717 set_spdifin(s, s->rateadc);
2718 if (!(s->status & DO_SPDIF_OUT))
2719 val &= ~DSP_BIND_SPDIF;
2720 }
2721 }
2722 if (file->f_mode & FMODE_WRITE) {
2723 stop_dac(s);
2724 s->dma_dac.ready = 0;
2725 if (val & DSP_BIND_SPDIF) {
2726 set_spdifout(s, s->ratedac);
2727 set_dac_channels(s, s->fmt & (CM_CFMT_STEREO << CM_CFMT_DACSHIFT) ? 2 : 1);
2728 if (!(s->status & DO_SPDIF_OUT))
2729 val &= ~DSP_BIND_SPDIF;
2730 } else {
2731 int channels;
2732 int mask;
2733
2734 mask = val & (DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE);
2735 switch (mask) {
2736 case DSP_BIND_FRONT:
2737 channels = 2;
2738 break;
2739 case DSP_BIND_FRONT|DSP_BIND_SURR:
2740 channels = 4;
2741 break;
2742 case DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE:
2743 channels = 6;
2744 break;
2745 default:
2746 channels = s->fmt & (CM_CFMT_STEREO << CM_CFMT_DACSHIFT) ? 2 : 1;
2747 break;
2748 }
2749 set_dac_channels(s, channels);
2750 }
2751 }
2752 }
2753 return put_user(val, p);
2754
2755 case SOUND_PCM_WRITE_FILTER:
2756 case SNDCTL_DSP_MAPINBUF:
2757 case SNDCTL_DSP_MAPOUTBUF:
2758 case SNDCTL_DSP_SETSYNCRO:
2759 return -EINVAL;
2760 case SNDCTL_SPDIF_COPYRIGHT:
2761 if (get_user(val, p))
2762 return -EFAULT;
2763 set_spdif_copyright(s, val);
2764 return 0;
2765 case SNDCTL_SPDIF_LOOP:
2766 if (get_user(val, p))
2767 return -EFAULT;
2768 set_spdif_loop(s, val);
2769 return 0;
2770 case SNDCTL_SPDIF_MONITOR:
2771 if (get_user(val, p))
2772 return -EFAULT;
2773 set_spdif_monitor(s, val);
2774 return 0;
2775 case SNDCTL_SPDIF_LEVEL:
2776 if (get_user(val, p))
2777 return -EFAULT;
2778 set_spdifout_level(s, val);
2779 return 0;
2780 case SNDCTL_SPDIF_INV:
2781 if (get_user(val, p))
2782 return -EFAULT;
2783 set_spdifin_inverse(s, val);
2784 return 0;
2785 case SNDCTL_SPDIF_SEL2:
2786 if (get_user(val, p))
2787 return -EFAULT;
2788 set_spdifin_channel2(s, val);
2789 return 0;
2790 case SNDCTL_SPDIF_VALID:
2791 if (get_user(val, p))
2792 return -EFAULT;
2793 set_spdifin_valid(s, val);
2794 return 0;
2795 case SNDCTL_SPDIFOUT:
2796 if (get_user(val, p))
2797 return -EFAULT;
2798 set_spdifout(s, val ? s->ratedac : 0);
2799 return 0;
2800 case SNDCTL_SPDIFIN:
2801 if (get_user(val, p))
2802 return -EFAULT;
2803 set_spdifin(s, val ? s->rateadc : 0);
2804 return 0;
2805 }
2806 return mixer_ioctl(s, cmd, arg);
2807}
2808
2809static int cm_open(struct inode *inode, struct file *file)
2810{
2811 int minor = iminor(inode);
2812 DECLARE_WAITQUEUE(wait, current);
2813 unsigned char fmtm = ~0, fmts = 0;
2814 struct list_head *list;
2815 struct cm_state *s;
2816
2817 for (list = devs.next; ; list = list->next) {
2818 if (list == &devs)
2819 return -ENODEV;
2820 s = list_entry(list, struct cm_state, devs);
2821 if (!((s->dev_audio ^ minor) & ~0xf))
2822 break;
2823 }
2824 VALIDATE_STATE(s);
2825 file->private_data = s;
2826 /* wait for device to become free */
2827 down(&s->open_sem);
2828 while (s->open_mode & file->f_mode) {
2829 if (file->f_flags & O_NONBLOCK) {
2830 up(&s->open_sem);
2831 return -EBUSY;
2832 }
2833 add_wait_queue(&s->open_wait, &wait);
2834 __set_current_state(TASK_INTERRUPTIBLE);
2835 up(&s->open_sem);
2836 schedule();
2837 remove_wait_queue(&s->open_wait, &wait);
2838 set_current_state(TASK_RUNNING);
2839 if (signal_pending(current))
2840 return -ERESTARTSYS;
2841 down(&s->open_sem);
2842 }
2843 if (file->f_mode & FMODE_READ) {
2844 s->status &= ~DO_BIGENDIAN_R;
2845 fmtm &= ~((CM_CFMT_STEREO | CM_CFMT_16BIT) << CM_CFMT_ADCSHIFT);
2846 if ((minor & 0xf) == SND_DEV_DSP16)
2847 fmts |= CM_CFMT_16BIT << CM_CFMT_ADCSHIFT;
2848 s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
2849 s->dma_adc.enabled = 1;
2850 set_adc_rate(s, 8000);
2851 // spdif-in is turnned off by default
2852 set_spdifin(s, 0);
2853 }
2854 if (file->f_mode & FMODE_WRITE) {
2855 s->status &= ~DO_BIGENDIAN_W;
2856 fmtm &= ~((CM_CFMT_STEREO | CM_CFMT_16BIT) << CM_CFMT_DACSHIFT);
2857 if ((minor & 0xf) == SND_DEV_DSP16)
2858 fmts |= CM_CFMT_16BIT << CM_CFMT_DACSHIFT;
2859 s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = s->dma_dac.subdivision = 0;
2860 s->dma_dac.enabled = 1;
2861 set_dac_rate(s, 8000);
2862 // clear previous multichannel, spdif, ac3 state
2863 set_spdifout(s, 0);
2864 set_ac3(s, 0);
2865 set_dac_channels(s, 1);
2866 }
2867 set_fmt(s, fmtm, fmts);
2868 s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
2869 up(&s->open_sem);
2870 return nonseekable_open(inode, file);
2871}
2872
2873static int cm_release(struct inode *inode, struct file *file)
2874{
2875 struct cm_state *s = (struct cm_state *)file->private_data;
2876
2877 VALIDATE_STATE(s);
2878 lock_kernel();
2879 if (file->f_mode & FMODE_WRITE)
2880 drain_dac(s, file->f_flags & O_NONBLOCK);
2881 down(&s->open_sem);
2882 if (file->f_mode & FMODE_WRITE) {
2883 stop_dac(s);
2884
2885 dealloc_dmabuf(s, &s->dma_dac);
2886 if (s->status & DO_DUAL_DAC)
2887 dealloc_dmabuf(s, &s->dma_adc);
2888
2889 if (s->status & DO_MULTI_CH)
2890 set_dac_channels(s, 1);
2891 if (s->status & DO_AC3)
2892 set_ac3(s, 0);
2893 if (s->status & DO_SPDIF_OUT)
2894 set_spdifout(s, 0);
2895 /* enable SPDIF loop */
2896 set_spdif_loop(s, spdif_loop);
2897 s->status &= ~DO_BIGENDIAN_W;
2898 }
2899 if (file->f_mode & FMODE_READ) {
2900 stop_adc(s);
2901 dealloc_dmabuf(s, &s->dma_adc);
2902 s->status &= ~DO_BIGENDIAN_R;
2903 }
2904 s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
2905 up(&s->open_sem);
2906 wake_up(&s->open_wait);
2907 unlock_kernel();
2908 return 0;
2909}
2910
2911static /*const*/ struct file_operations cm_audio_fops = {
2912 .owner = THIS_MODULE,
2913 .llseek = no_llseek,
2914 .read = cm_read,
2915 .write = cm_write,
2916 .poll = cm_poll,
2917 .ioctl = cm_ioctl,
2918 .mmap = cm_mmap,
2919 .open = cm_open,
2920 .release = cm_release,
2921};
2922
2923/* --------------------------------------------------------------------- */
2924
2925static struct initvol {
2926 int mixch;
2927 int vol;
2928} initvol[] __devinitdata = {
2929 { SOUND_MIXER_WRITE_CD, 0x4f4f },
2930 { SOUND_MIXER_WRITE_LINE, 0x4f4f },
2931 { SOUND_MIXER_WRITE_MIC, 0x4f4f },
2932 { SOUND_MIXER_WRITE_SYNTH, 0x4f4f },
2933 { SOUND_MIXER_WRITE_VOLUME, 0x4f4f },
2934 { SOUND_MIXER_WRITE_PCM, 0x4f4f }
2935};
2936
2937/* check chip version and capability */
2938static int query_chip(struct cm_state *s)
2939{
2940 int ChipVersion = -1;
2941 unsigned char RegValue;
2942
2943 // check reg 0Ch, bit 24-31
2944 RegValue = inb(s->iobase + CODEC_CMI_INT_HLDCLR + 3);
2945 if (RegValue == 0) {
2946 // check reg 08h, bit 24-28
2947 RegValue = inb(s->iobase + CODEC_CMI_CHFORMAT + 3);
2948 RegValue &= 0x1f;
2949 if (RegValue == 0) {
2950 ChipVersion = 33;
2951 s->max_channels = 4;
2952 s->capability |= CAN_AC3_SW;
2953 s->capability |= CAN_DUAL_DAC;
2954 } else {
2955 ChipVersion = 37;
2956 s->max_channels = 4;
2957 s->capability |= CAN_AC3_HW;
2958 s->capability |= CAN_DUAL_DAC;
2959 }
2960 } else {
2961 // check reg 0Ch, bit 26
2962 if (RegValue & (1 << (26-24))) {
2963 ChipVersion = 39;
2964 if (RegValue & (1 << (24-24)))
2965 s->max_channels = 6;
2966 else
2967 s->max_channels = 4;
2968 s->capability |= CAN_AC3_HW;
2969 s->capability |= CAN_DUAL_DAC;
2970 s->capability |= CAN_MULTI_CH_HW;
2971 s->capability |= CAN_LINE_AS_BASS;
2972 s->capability |= CAN_MIC_AS_BASS;
2973 } else {
2974 ChipVersion = 55; // 4 or 6 channels
2975 s->max_channels = 6;
2976 s->capability |= CAN_AC3_HW;
2977 s->capability |= CAN_DUAL_DAC;
2978 s->capability |= CAN_MULTI_CH_HW;
2979 s->capability |= CAN_LINE_AS_BASS;
2980 s->capability |= CAN_MIC_AS_BASS;
2981 }
2982 }
2983 s->capability |= CAN_LINE_AS_REAR;
2984 return ChipVersion;
2985}
2986
2987#ifdef CONFIG_SOUND_CMPCI_JOYSTICK
2988static int __devinit cm_create_gameport(struct cm_state *s, int io_port)
2989{
2990 struct gameport *gp;
2991
2992 if (!request_region(io_port, CM_EXTENT_GAME, "cmpci GAME")) {
2993 printk(KERN_ERR "cmpci: gameport io ports 0x%#x in use\n", io_port);
2994 return -EBUSY;
2995 }
2996
2997 if (!(s->gameport = gp = gameport_allocate_port())) {
2998 printk(KERN_ERR "cmpci: can not allocate memory for gameport\n");
2999 release_region(io_port, CM_EXTENT_GAME);
3000 return -ENOMEM;
3001 }
3002
3003 gameport_set_name(gp, "C-Media GP");
3004 gameport_set_phys(gp, "pci%s/gameport0", pci_name(s->dev));
3005 gp->dev.parent = &s->dev->dev;
3006 gp->io = io_port;
3007
3008 /* enable joystick */
3009 maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0, 0x02);
3010
3011 gameport_register_port(gp);
3012
3013 return 0;
3014}
3015
3016static void __devexit cm_free_gameport(struct cm_state *s)
3017{
3018 if (s->gameport) {
3019 int gpio = s->gameport->io;
3020
3021 gameport_unregister_port(s->gameport);
3022 s->gameport = NULL;
3023 maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0x02, 0);
3024 release_region(gpio, CM_EXTENT_GAME);
3025 }
3026}
3027#else
3028static inline int cm_create_gameport(struct cm_state *s, int io_port) { return -ENOSYS; }
3029static inline void cm_free_gameport(struct cm_state *s) { }
3030#endif
3031
3032#define echo_option(x)\
3033if (x) strcat(options, "" #x " ")
3034
3035static int __devinit cm_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid)
3036{
3037 struct cm_state *s;
3038 mm_segment_t fs;
3039 int i, val, ret;
3040 unsigned char reg_mask;
3041 int timeout;
3042 struct resource *ports;
3043 struct {
3044 unsigned short deviceid;
3045 char *devicename;
3046 } devicetable[] = {
3047 { PCI_DEVICE_ID_CMEDIA_CM8338A, "CM8338A" },
3048 { PCI_DEVICE_ID_CMEDIA_CM8338B, "CM8338B" },
3049 { PCI_DEVICE_ID_CMEDIA_CM8738, "CM8738" },
3050 { PCI_DEVICE_ID_CMEDIA_CM8738B, "CM8738B" },
3051 };
3052 char *devicename = "unknown";
3053 char options[256];
3054
3055 if ((ret = pci_enable_device(pcidev)))
3056 return ret;
3057 if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_IO))
3058 return -ENODEV;
3059 if (pcidev->irq == 0)
3060 return -ENODEV;
3061 i = pci_set_dma_mask(pcidev, 0xffffffff);
3062 if (i) {
3063 printk(KERN_WARNING "cmpci: architecture does not support 32bit PCI busmaster DMA\n");
3064 return i;
3065 }
3066 s = kmalloc(sizeof(*s), GFP_KERNEL);
3067 if (!s) {
3068 printk(KERN_WARNING "cmpci: out of memory\n");
3069 return -ENOMEM;
3070 }
3071 /* search device name */
3072 for (i = 0; i < sizeof(devicetable) / sizeof(devicetable[0]); i++) {
3073 if (devicetable[i].deviceid == pcidev->device) {
3074 devicename = devicetable[i].devicename;
3075 break;
3076 }
3077 }
3078 memset(s, 0, sizeof(struct cm_state));
3079 init_waitqueue_head(&s->dma_adc.wait);
3080 init_waitqueue_head(&s->dma_dac.wait);
3081 init_waitqueue_head(&s->open_wait);
3082 init_MUTEX(&s->open_sem);
3083 spin_lock_init(&s->lock);
3084 s->magic = CM_MAGIC;
3085 s->dev = pcidev;
3086 s->iobase = pci_resource_start(pcidev, 0);
3087 s->iosynth = fmio;
3088 s->iomidi = mpuio;
3089#ifdef CONFIG_SOUND_CMPCI_MIDI
3090 s->midi_devc = 0;
3091#endif
3092 s->status = 0;
3093 if (s->iobase == 0)
3094 return -ENODEV;
3095 s->irq = pcidev->irq;
3096
3097 if (!request_region(s->iobase, CM_EXTENT_CODEC, "cmpci")) {
3098 printk(KERN_ERR "cmpci: io ports %#x-%#x in use\n", s->iobase, s->iobase+CM_EXTENT_CODEC-1);
3099 ret = -EBUSY;
3100 goto err_region5;
3101 }
3102 /* dump parameters */
3103 strcpy(options, "cmpci: ");
3104 echo_option(joystick);
3105 echo_option(spdif_inverse);
3106 echo_option(spdif_loop);
3107 echo_option(spdif_out);
3108 echo_option(use_line_as_rear);
3109 echo_option(use_line_as_bass);
3110 echo_option(use_mic_as_bass);
3111 echo_option(mic_boost);
3112 echo_option(hw_copy);
3113 printk(KERN_INFO "%s\n", options);
3114
3115 /* initialize codec registers */
3116 outb(0, s->iobase + CODEC_CMI_INT_HLDCLR + 2); /* disable ints */
3117 outb(0, s->iobase + CODEC_CMI_FUNCTRL0 + 2); /* disable channels */
3118 /* reset mixer */
3119 wrmixer(s, DSP_MIX_DATARESETIDX, 0);
3120
3121 /* request irq */
3122 if ((ret = request_irq(s->irq, cm_interrupt, SA_SHIRQ, "cmpci", s))) {
3123 printk(KERN_ERR "cmpci: irq %u in use\n", s->irq);
3124 goto err_irq;
3125 }
3126 printk(KERN_INFO "cmpci: found %s adapter at io %#x irq %u\n",
3127 devicename, s->iobase, s->irq);
3128 /* register devices */
3129 if ((s->dev_audio = register_sound_dsp(&cm_audio_fops, -1)) < 0) {
3130 ret = s->dev_audio;
3131 goto err_dev1;
3132 }
3133 if ((s->dev_mixer = register_sound_mixer(&cm_mixer_fops, -1)) < 0) {
3134 ret = s->dev_mixer;
3135 goto err_dev2;
3136 }
3137 pci_set_master(pcidev); /* enable bus mastering */
3138 /* initialize the chips */
3139 fs = get_fs();
3140 set_fs(KERNEL_DS);
3141 /* set mixer output */
3142 frobindir(s, DSP_MIX_OUTMIXIDX, 0x1f, 0x1f);
3143 /* set mixer input */
3144 val = SOUND_MASK_LINE|SOUND_MASK_SYNTH|SOUND_MASK_CD|SOUND_MASK_MIC;
3145 mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
3146 for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
3147 val = initvol[i].vol;
3148 mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
3149 }
3150 set_fs(fs);
3151 /* use channel 1 for playback, channel 0 for record */
3152 maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~CHADC1, CHADC0);
3153 /* turn off VMIC3 - mic boost */
3154 if (mic_boost)
3155 maskb(s->iobase + CODEC_CMI_MIXER2, ~1, 0);
3156 else
3157 maskb(s->iobase + CODEC_CMI_MIXER2, ~0, 1);
3158 s->deviceid = pcidev->device;
3159
3160 if (pcidev->device == PCI_DEVICE_ID_CMEDIA_CM8738
3161 || pcidev->device == PCI_DEVICE_ID_CMEDIA_CM8738B) {
3162
3163 /* chip version and hw capability check */
3164 s->chip_version = query_chip(s);
3165 printk(KERN_INFO "cmpci: chip version = 0%d\n", s->chip_version);
3166
3167 /* set SPDIF-in inverse before enable SPDIF loop */
3168 set_spdifin_inverse(s, spdif_inverse);
3169
3170 /* use SPDIF in #1 */
3171 set_spdifin_channel2(s, 0);
3172 } else {
3173 s->chip_version = 0;
3174 /* 8338 will fall here */
3175 s->max_channels = 4;
3176 s->capability |= CAN_DUAL_DAC;
3177 s->capability |= CAN_LINE_AS_REAR;
3178 }
3179 /* enable SPDIF loop */
3180 set_spdif_loop(s, spdif_loop);
3181
3182 // enable 4 speaker mode (analog duplicate)
3183 set_hw_copy(s, hw_copy);
3184
3185 reg_mask = 0;
3186#ifdef CONFIG_SOUND_CMPCI_FM
3187 /* disable FM */
3188 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~8, 0);
3189 if (s->iosynth) {
3190 /* don't enable OPL3 if there is one */
3191 if (opl3_detect(s->iosynth, NULL)) {
3192 s->iosynth = 0;
3193 } else {
3194 /* set IO based at 0x388 */
3195 switch (s->iosynth) {
3196 case 0x388:
3197 reg_mask = 0;
3198 break;
3199 case 0x3C8:
3200 reg_mask = 0x01;
3201 break;
3202 case 0x3E0:
3203 reg_mask = 0x02;
3204 break;
3205 case 0x3E8:
3206 reg_mask = 0x03;
3207 break;
3208 default:
3209 s->iosynth = 0;
3210 break;
3211 }
3212 maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 3, ~0x03, reg_mask);
3213 /* enable FM */
3214 if (s->iosynth) {
3215 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0, 8);
3216 if (opl3_detect(s->iosynth, NULL))
3217 ret = opl3_init(s->iosynth, NULL, THIS_MODULE);
3218 else {
3219 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~8, 0);
3220 s->iosynth = 0;
3221 }
3222 }
3223 }
3224 }
3225#endif
3226#ifdef CONFIG_SOUND_CMPCI_MIDI
3227 switch (s->iomidi) {
3228 case 0x330:
3229 reg_mask = 0;
3230 break;
3231 case 0x320:
3232 reg_mask = 0x20;
3233 break;
3234 case 0x310:
3235 reg_mask = 0x40;
3236 break;
3237 case 0x300:
3238 reg_mask = 0x60;
3239 break;
3240 default:
3241 s->iomidi = 0;
3242 goto skip_mpu;
3243 }
3244 ports = request_region(s->iomidi, 2, "mpu401");
3245 if (!ports)
3246 goto skip_mpu;
3247 /* disable MPU-401 */
3248 maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0x04, 0);
3249 s->mpu_data.name = "cmpci mpu";
3250 s->mpu_data.io_base = s->iomidi;
3251 s->mpu_data.irq = -s->irq; // tell mpu401 to share irq
3252 if (probe_mpu401(&s->mpu_data, ports)) {
3253 release_region(s->iomidi, 2);
3254 s->iomidi = 0;
3255 goto skip_mpu;
3256 }
3257 maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 3, ~0x60, reg_mask);
3258 /* enable MPU-401 */
3259 maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0, 0x04);
3260 /* clear all previously received interrupt */
3261 for (timeout = 900000; timeout > 0; timeout--) {
3262 if ((inb(s->iomidi + 1) && 0x80) == 0)
3263 inb(s->iomidi);
3264 else
3265 break;
3266 }
3267 if (!probe_mpu401(&s->mpu_data, ports)) {
3268 release_region(s->iomidi, 2);
3269 s->iomidi = 0;
3270 maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0, 0x04);
3271 } else {
3272 attach_mpu401(&s->mpu_data, THIS_MODULE);
3273 s->midi_devc = s->mpu_data.slots[1];
3274 }
3275skip_mpu:
3276#endif
3277 /* disable joystick port */
3278 maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0x02, 0);
3279 if (joystick)
3280 cm_create_gameport(s, 0x200);
3281
3282 /* store it in the driver field */
3283 pci_set_drvdata(pcidev, s);
3284 /* put it into driver list */
3285 list_add_tail(&s->devs, &devs);
3286 /* increment devindex */
3287 if (devindex < NR_DEVICE-1)
3288 devindex++;
3289 return 0;
3290
3291err_dev2:
3292 unregister_sound_dsp(s->dev_audio);
3293err_dev1:
3294 printk(KERN_ERR "cmpci: cannot register misc device\n");
3295 free_irq(s->irq, s);
3296err_irq:
3297 release_region(s->iobase, CM_EXTENT_CODEC);
3298err_region5:
3299 kfree(s);
3300 return ret;
3301}
3302
3303/* --------------------------------------------------------------------- */
3304
3305MODULE_AUTHOR("ChenLi Tien, cltien@cmedia.com.tw");
3306MODULE_DESCRIPTION("CM8x38 Audio Driver");
3307MODULE_LICENSE("GPL");
3308
3309static void __devexit cm_remove(struct pci_dev *dev)
3310{
3311 struct cm_state *s = pci_get_drvdata(dev);
3312
3313 if (!s)
3314 return;
3315
3316 cm_free_gameport(s);
3317
3318#ifdef CONFIG_SOUND_CMPCI_FM
3319 if (s->iosynth) {
3320 /* disable FM */
3321 maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~8, 0);
3322 }
3323#endif
3324#ifdef CONFIG_SOUND_CMPCI_MIDI
3325 if (s->iomidi) {
3326 unload_mpu401(&s->mpu_data);
3327 /* disable MPU-401 */
3328 maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0x04, 0);
3329 }
3330#endif
3331 set_spdif_loop(s, 0);
3332 list_del(&s->devs);
3333 outb(0, s->iobase + CODEC_CMI_INT_HLDCLR + 2); /* disable ints */
3334 synchronize_irq(s->irq);
3335 outb(0, s->iobase + CODEC_CMI_FUNCTRL0 + 2); /* disable channels */
3336 free_irq(s->irq, s);
3337
3338 /* reset mixer */
3339 wrmixer(s, DSP_MIX_DATARESETIDX, 0);
3340
3341 release_region(s->iobase, CM_EXTENT_CODEC);
3342 unregister_sound_dsp(s->dev_audio);
3343 unregister_sound_mixer(s->dev_mixer);
3344 kfree(s);
3345 pci_set_drvdata(dev, NULL);
3346}
3347
3348static struct pci_device_id id_table[] __devinitdata = {
3349 { PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738B, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
3350 { PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
3351 { PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338A, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
3352 { PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338B, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
3353 { 0, }
3354};
3355
3356MODULE_DEVICE_TABLE(pci, id_table);
3357
3358static struct pci_driver cm_driver = {
3359 .name = "cmpci",
3360 .id_table = id_table,
3361 .probe = cm_probe,
3362 .remove = __devexit_p(cm_remove)
3363};
3364
3365static int __init init_cmpci(void)
3366{
3367 printk(KERN_INFO "cmpci: version $Revision: 6.82 $ time " __TIME__ " " __DATE__ "\n");
3368 return pci_module_init(&cm_driver);
3369}
3370
3371static void __exit cleanup_cmpci(void)
3372{
3373 printk(KERN_INFO "cmpci: unloading\n");
3374 pci_unregister_driver(&cm_driver);
3375}
3376
3377module_init(init_cmpci);
3378module_exit(cleanup_cmpci);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-29 08:36:52 -0500