cmpci.c
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上传日期:2013-02-24
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- /*****************************************************************************/
- /*
- * cmpci.c -- C-Media PCI audio driver.
- *
- * Copyright (C) 1999 ChenLi Tien (cltien@cmedia.com.tw)
- * C-media support (support@cmedia.com.tw)
- *
- * Based on the PCI drivers by Thomas Sailer (sailer@ife.ee.ethz.ch)
- *
- * For update, visit:
- * http://members.home.net/puresoft/cmedia.html
- * http://www.cmedia.com.tw
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Special thanks to David C. Niemi, Jan Pfeifer
- *
- *
- * Module command line parameters:
- * none so far
- *
- *
- * Supported devices:
- * /dev/dsp standard /dev/dsp device, (mostly) OSS compatible
- * /dev/mixer standard /dev/mixer device, (mostly) OSS compatible
- * /dev/midi simple MIDI UART interface, no ioctl
- *
- * The card has both an FM and a Wavetable synth, but I have to figure
- * out first how to drive them...
- *
- * Revision history
- * 06.05.98 0.1 Initial release
- * 10.05.98 0.2 Fixed many bugs, esp. ADC rate calculation
- * First stab at a simple midi interface (no bells&whistles)
- * 13.05.98 0.3 Fix stupid cut&paste error: set_adc_rate was called instead of
- * set_dac_rate in the FMODE_WRITE case in cm_open
- * Fix hwptr out of bounds (now mpg123 works)
- * 14.05.98 0.4 Don't allow excessive interrupt rates
- * 08.06.98 0.5 First release using Alan Cox' soundcore instead of miscdevice
- * 03.08.98 0.6 Do not include modversions.h
- * Now mixer behaviour can basically be selected between
- * "OSS documented" and "OSS actual" behaviour
- * 31.08.98 0.7 Fix realplayer problems - dac.count issues
- * 10.12.98 0.8 Fix drain_dac trying to wait on not yet initialized DMA
- * 16.12.98 0.9 Fix a few f_file & FMODE_ bugs
- * 06.01.99 0.10 remove the silly SA_INTERRUPT flag.
- * hopefully killed the egcs section type conflict
- * 12.03.99 0.11 cinfo.blocks should be reset after GETxPTR ioctl.
- * reported by Johan Maes <joma@telindus.be>
- * 22.03.99 0.12 return EAGAIN instead of EBUSY when O_NONBLOCK
- * read/write cannot be executed
- * 18.08.99 1.5 Only deallocate DMA buffer when unloading.
- * 02.09.99 1.6 Enable SPDIF LOOP
- * Change the mixer read back
- * 21.09.99 2.33 Use RCS version as driver version.
- * Add support for modem, S/PDIF loop and 4 channels.
- * (8738 only)
- * Fix bug cause x11amp cannot play.
- *
- * Fixes:
- * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- * 18/05/2001 - .bss nitpicks, fix a bug in set_dac_channels where it
- * was calling prog_dmabuf with s->lock held, call missing
- * unlock_kernel in cm_midi_release
- * 08/10/2001 - use set_current_state in some more places
- *
- * Carlos Eduardo Gorges <carlos@techlinux.com.br>
- * Fri May 25 2001
- * - SMP support ( spin[un]lock* revision )
- * - speaker mixer support
- * Mon Aug 13 2001
- * - optimizations and cleanups
- *
- */
- /*****************************************************************************/
-
- #include <linux/version.h>
- #include <linux/config.h>
- #include <linux/module.h>
- #include <linux/string.h>
- #include <linux/ioport.h>
- #include <linux/sched.h>
- #include <linux/delay.h>
- #include <linux/sound.h>
- #include <linux/slab.h>
- #include <linux/soundcard.h>
- #include <linux/pci.h>
- #include <linux/wrapper.h>
- #include <asm/io.h>
- #include <asm/dma.h>
- #include <linux/init.h>
- #include <linux/poll.h>
- #include <linux/spinlock.h>
- #include <linux/smp_lock.h>
- #include <asm/uaccess.h>
- #include <asm/hardirq.h>
- #include <linux/bitops.h>
- #include "dm.h"
- /* --------------------------------------------------------------------- */
- #undef OSS_DOCUMENTED_MIXER_SEMANTICS
- #undef DMABYTEIO
- /* --------------------------------------------------------------------- */
- #define CM_MAGIC ((PCI_VENDOR_ID_CMEDIA<<16)|PCI_DEVICE_ID_CMEDIA_CM8338A)
- /* CM8338 registers definition ****************/
- #define CODEC_CMI_FUNCTRL0 (0x00)
- #define CODEC_CMI_FUNCTRL1 (0x04)
- #define CODEC_CMI_CHFORMAT (0x08)
- #define CODEC_CMI_INT_HLDCLR (0x0C)
- #define CODEC_CMI_INT_STATUS (0x10)
- #define CODEC_CMI_LEGACY_CTRL (0x14)
- #define CODEC_CMI_MISC_CTRL (0x18)
- #define CODEC_CMI_TDMA_POS (0x1C)
- #define CODEC_CMI_MIXER (0x20)
- #define CODEC_SB16_DATA (0x22)
- #define CODEC_SB16_ADDR (0x23)
- #define CODEC_CMI_MIXER1 (0x24)
- #define CODEC_CMI_MIXER2 (0x25)
- #define CODEC_CMI_AUX_VOL (0x26)
- #define CODEC_CMI_MISC (0x27)
- #define CODEC_CMI_AC97 (0x28)
- #define CODEC_CMI_CH0_FRAME1 (0x80)
- #define CODEC_CMI_CH0_FRAME2 (0x84)
- #define CODEC_CMI_CH1_FRAME1 (0x88)
- #define CODEC_CMI_CH1_FRAME2 (0x8C)
- #define CODEC_CMI_EXT_REG (0xF0)
- /* Mixer registers for SB16 ******************/
- #define DSP_MIX_DATARESETIDX ((unsigned char)(0x00))
- #define DSP_MIX_MASTERVOLIDX_L ((unsigned char)(0x30))
- #define DSP_MIX_MASTERVOLIDX_R ((unsigned char)(0x31))
- #define DSP_MIX_VOICEVOLIDX_L ((unsigned char)(0x32))
- #define DSP_MIX_VOICEVOLIDX_R ((unsigned char)(0x33))
- #define DSP_MIX_FMVOLIDX_L ((unsigned char)(0x34))
- #define DSP_MIX_FMVOLIDX_R ((unsigned char)(0x35))
- #define DSP_MIX_CDVOLIDX_L ((unsigned char)(0x36))
- #define DSP_MIX_CDVOLIDX_R ((unsigned char)(0x37))
- #define DSP_MIX_LINEVOLIDX_L ((unsigned char)(0x38))
- #define DSP_MIX_LINEVOLIDX_R ((unsigned char)(0x39))
- #define DSP_MIX_MICVOLIDX ((unsigned char)(0x3A))
- #define DSP_MIX_SPKRVOLIDX ((unsigned char)(0x3B))
- #define DSP_MIX_OUTMIXIDX ((unsigned char)(0x3C))
- #define DSP_MIX_ADCMIXIDX_L ((unsigned char)(0x3D))
- #define DSP_MIX_ADCMIXIDX_R ((unsigned char)(0x3E))
- #define DSP_MIX_INGAINIDX_L ((unsigned char)(0x3F))
- #define DSP_MIX_INGAINIDX_R ((unsigned char)(0x40))
- #define DSP_MIX_OUTGAINIDX_L ((unsigned char)(0x41))
- #define DSP_MIX_OUTGAINIDX_R ((unsigned char)(0x42))
- #define DSP_MIX_AGCIDX ((unsigned char)(0x43))
- #define DSP_MIX_TREBLEIDX_L ((unsigned char)(0x44))
- #define DSP_MIX_TREBLEIDX_R ((unsigned char)(0x45))
- #define DSP_MIX_BASSIDX_L ((unsigned char)(0x46))
- #define DSP_MIX_BASSIDX_R ((unsigned char)(0x47))
- #define CM_CH0_RESET 0x04
- #define CM_CH1_RESET 0x08
- #define CM_EXTENT_CODEC 0x100
- #define CM_EXTENT_MIDI 0x2
- #define CM_EXTENT_SYNTH 0x4
- #define CM_INT_CH0 1
- #define CM_INT_CH1 2
- #define CM_CFMT_STEREO 0x01
- #define CM_CFMT_16BIT 0x02
- #define CM_CFMT_MASK 0x03
- #define CM_CFMT_DACSHIFT 2
- #define CM_CFMT_ADCSHIFT 0
- static const unsigned sample_shift[] = { 0, 1, 1, 2 };
- #define CM_ENABLE_CH1 0x2
- #define CM_ENABLE_CH0 0x1
- /* MIDI buffer sizes **************************/
- #define MIDIINBUF 256
- #define MIDIOUTBUF 256
- #define FMODE_MIDI_SHIFT 2
- #define FMODE_MIDI_READ (FMODE_READ << FMODE_MIDI_SHIFT)
- #define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
- #define FMODE_DMFM 0x10
- #define SND_DEV_DSP16 5
- #define NR_DEVICE 3 /* maximum number of devices */
- /*********************************************/
- struct cm_state {
- unsigned int magic; /* magic */
- struct cm_state *next; /* we keep cm cards in a linked list */
- int dev_audio; /* soundcore stuff */
- int dev_mixer;
- int dev_midi;
- int dev_dmfm;
- unsigned int iosb, iobase, iosynth,
- iomidi, iogame, irq; /* hardware resources */
- unsigned short deviceid; /* pci_id */
- struct { /* mixer stuff */
- unsigned int modcnt;
- unsigned short vol[13];
- } mix;
- unsigned int rateadc, ratedac; /* wave stuff */
- unsigned char fmt, enable;
- spinlock_t lock;
- struct semaphore open_sem;
- mode_t open_mode;
- wait_queue_head_t open_wait;
- struct dmabuf {
- void *rawbuf;
- unsigned rawphys;
- unsigned buforder;
- unsigned numfrag;
- unsigned fragshift;
- unsigned hwptr, swptr;
- unsigned total_bytes;
- int count;
- unsigned error; /* over/underrun */
- wait_queue_head_t wait;
-
- unsigned fragsize; /* redundant, but makes calculations easier */
- unsigned dmasize;
- unsigned fragsamples;
- unsigned dmasamples;
-
- unsigned mapped:1; /* OSS stuff */
- unsigned ready:1;
- unsigned endcleared:1;
- unsigned ossfragshift;
- int ossmaxfrags;
- unsigned subdivision;
- } dma_dac, dma_adc;
- struct { /* midi stuff */
- unsigned ird, iwr, icnt;
- unsigned ord, owr, ocnt;
- wait_queue_head_t iwait;
- wait_queue_head_t owait;
- struct timer_list timer;
- unsigned char ibuf[MIDIINBUF];
- unsigned char obuf[MIDIOUTBUF];
- } midi;
-
- int chip_version;
- int max_channels;
- int curr_channels;
- int speakers; /* number of speakers */
- int capability; /* HW capability, various for chip versions */
- int status; /* HW or SW state */
-
- int spdif_counter; /* spdif frame counter */
- };
- /* flags used for capability */
- #define CAN_AC3_HW 0x00000001 /* 037 or later */
- #define CAN_AC3_SW 0x00000002 /* 033 or later */
- #define CAN_AC3 (CAN_AC3_HW | CAN_AC3_SW)
- #define CAN_DUAL_DAC 0x00000004 /* 033 or later */
- #define CAN_MULTI_CH_HW 0x00000008 /* 039 or later */
- #define CAN_MULTI_CH (CAN_MULTI_CH_HW | CAN_DUAL_DAC)
- #define CAN_LINE_AS_REAR 0x00000010 /* 033 or later */
- #define CAN_LINE_AS_BASS 0x00000020 /* 039 or later */
- #define CAN_MIC_AS_BASS 0x00000040 /* 039 or later */
- /* flags used for status */
- #define DO_AC3_HW 0x00000001
- #define DO_AC3_SW 0x00000002
- #define DO_AC3 (DO_AC3_HW | DO_AC3_SW)
- #define DO_DUAL_DAC 0x00000004
- #define DO_MULTI_CH_HW 0x00000008
- #define DO_MULTI_CH (DO_MULTI_CH_HW | DO_DUAL_DAC)
- #define DO_LINE_AS_REAR 0x00000010 /* 033 or later */
- #define DO_LINE_AS_BASS 0x00000020 /* 039 or later */
- #define DO_MIC_AS_BASS 0x00000040 /* 039 or later */
- #define DO_SPDIF_OUT 0x00000100
- #define DO_SPDIF_IN 0x00000200
- #define DO_SPDIF_LOOP 0x00000400
- static struct cm_state *devs;
- static unsigned long wavetable_mem;
- /* --------------------------------------------------------------------- */
- static inline unsigned ld2(unsigned int x)
- {
- unsigned exp=16,l=5,r=0;
- static const unsigned num[]={0x2,0x4,0x10,0x100,0x10000};
- /* num: 2, 4, 16, 256, 65536 */
- /* exp: 1, 2, 4, 8, 16 */
-
- while(l--) {
- if( x >= num[l] ) {
- if(num[l]>2) x >>= exp;
- r+=exp;
- }
- exp>>=1;
- }
- return r;
- }
- /* --------------------------------------------------------------------- */
- static void maskb(unsigned int addr, unsigned int mask, unsigned int value)
- {
- outb((inb(addr) & mask) | value, addr);
- }
- static void maskw(unsigned int addr, unsigned int mask, unsigned int value)
- {
- outw((inw(addr) & mask) | value, addr);
- }
- static void maskl(unsigned int addr, unsigned int mask, unsigned int value)
- {
- outl((inl(addr) & mask) | value, addr);
- }
- static void set_dmadac1(struct cm_state *s, unsigned int addr, unsigned int count)
- {
- if (addr)
- outl(addr, s->iobase + CODEC_CMI_CH0_FRAME1);
- outw(count - 1, s->iobase + CODEC_CMI_CH0_FRAME2);
- maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~1, 0);
- }
- static void set_dmaadc(struct cm_state *s, unsigned int addr, unsigned int count)
- {
- outl(addr, s->iobase + CODEC_CMI_CH0_FRAME1);
- outw(count - 1, s->iobase + CODEC_CMI_CH0_FRAME2);
- maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~0, 1);
- }
- static void set_dmadac(struct cm_state *s, unsigned int addr, unsigned int count)
- {
- outl(addr, s->iobase + CODEC_CMI_CH1_FRAME1);
- outw(count - 1, s->iobase + CODEC_CMI_CH1_FRAME2);
- maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~2, 0);
- if (s->status & DO_DUAL_DAC)
- set_dmadac1(s, 0, count);
- }
- static void set_countadc(struct cm_state *s, unsigned count)
- {
- outw(count - 1, s->iobase + CODEC_CMI_CH0_FRAME2 + 2);
- }
- static void set_countdac(struct cm_state *s, unsigned count)
- {
- outw(count - 1, s->iobase + CODEC_CMI_CH1_FRAME2 + 2);
- if (s->status & DO_DUAL_DAC)
- set_countadc(s, count);
- }
- static inline unsigned get_dmadac(struct cm_state *s)
- {
- unsigned int curr_addr;
- curr_addr = inw(s->iobase + CODEC_CMI_CH1_FRAME2) + 1;
- curr_addr <<= sample_shift[(s->fmt >> CM_CFMT_DACSHIFT) & CM_CFMT_MASK];
- curr_addr = s->dma_dac.dmasize - curr_addr;
- return curr_addr;
- }
- static inline unsigned get_dmaadc(struct cm_state *s)
- {
- unsigned int curr_addr;
- curr_addr = inw(s->iobase + CODEC_CMI_CH0_FRAME2) + 1;
- curr_addr <<= sample_shift[(s->fmt >> CM_CFMT_ADCSHIFT) & CM_CFMT_MASK];
- curr_addr = s->dma_adc.dmasize - curr_addr;
- return curr_addr;
- }
- static void wrmixer(struct cm_state *s, unsigned char idx, unsigned char data)
- {
- outb(idx, s->iobase + CODEC_SB16_ADDR);
- udelay(10);
- outb(data, s->iobase + CODEC_SB16_DATA);
- udelay(10);
- }
- static unsigned char rdmixer(struct cm_state *s, unsigned char idx)
- {
- unsigned char v;
- unsigned long flags;
-
- spin_lock_irqsave(&s->lock, flags);
- outb(idx, s->iobase + CODEC_SB16_ADDR);
- udelay(10);
- v = inb(s->iobase + CODEC_SB16_DATA);
- udelay(10);
- spin_unlock_irqrestore(&s->lock, flags);
- return v;
- }
- static void set_fmt_unlocked(struct cm_state *s, unsigned char mask, unsigned char data)
- {
- if (mask)
- {
- s->fmt = inb(s->iobase + CODEC_CMI_CHFORMAT);
- udelay(10);
- }
- s->fmt = (s->fmt & mask) | data;
- outb(s->fmt, s->iobase + CODEC_CMI_CHFORMAT);
- udelay(10);
- }
- static void set_fmt(struct cm_state *s, unsigned char mask, unsigned char data)
- {
- unsigned long flags;
- spin_lock_irqsave(&s->lock, flags);
- set_fmt_unlocked(s,mask,data);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- static void frobindir(struct cm_state *s, unsigned char idx, unsigned char mask, unsigned char data)
- {
- outb(idx, s->iobase + CODEC_SB16_ADDR);
- udelay(10);
- outb((inb(s->iobase + CODEC_SB16_DATA) & mask) | data, s->iobase + CODEC_SB16_DATA);
- udelay(10);
- }
- static struct {
- unsigned rate;
- unsigned lower;
- unsigned upper;
- unsigned char freq;
- } rate_lookup[] =
- {
- { 5512, (0 + 5512) / 2, (5512 + 8000) / 2, 0 },
- { 8000, (5512 + 8000) / 2, (8000 + 11025) / 2, 4 },
- { 11025, (8000 + 11025) / 2, (11025 + 16000) / 2, 1 },
- { 16000, (11025 + 16000) / 2, (16000 + 22050) / 2, 5 },
- { 22050, (16000 + 22050) / 2, (22050 + 32000) / 2, 2 },
- { 32000, (22050 + 32000) / 2, (32000 + 44100) / 2, 6 },
- { 44100, (32000 + 44100) / 2, (44100 + 48000) / 2, 3 },
- { 48000, (44100 + 48000) / 2, 48000, 7 }
- };
- static void set_spdifout_unlocked(struct cm_state *s, unsigned rate)
- {
- if (rate == 48000 || rate == 44100) {
- // SPDIFI48K SPDF_ACc97
- maskl(s->iobase + CODEC_CMI_MISC_CTRL, ~0x01008000, rate == 48000 ? 0x01008000 : 0);
- // ENSPDOUT
- maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 2, ~0, 0x80);
- // SPDF_1 SPD2DAC
- maskw(s->iobase + CODEC_CMI_FUNCTRL1, ~0, 0x240);
- // CDPLAY
- if (s->chip_version >= 39)
- maskb(s->iobase + CODEC_CMI_MIXER1, ~0, 1);
- s->status |= DO_SPDIF_OUT;
- } else {
- maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 2, ~0x80, 0);
- maskw(s->iobase + CODEC_CMI_FUNCTRL1, ~0x240, 0);
- if (s->chip_version >= 39)
- maskb(s->iobase + CODEC_CMI_MIXER1, ~1, 0);
- s->status &= ~DO_SPDIF_OUT;
- }
- }
- static void set_spdifout(struct cm_state *s, unsigned rate)
- {
- unsigned long flags;
- spin_lock_irqsave(&s->lock, flags);
- set_spdifout_unlocked(s,rate);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- /* find parity for bit 4~30 */
- static unsigned parity(unsigned data)
- {
- unsigned parity = 0;
- int counter = 4;
- data >>= 4; // start from bit 4
- while (counter <= 30) {
- if (data & 1)
- parity++;
- data >>= 1;
- counter++;
- }
- return parity & 1;
- }
- static void set_ac3_unlocked(struct cm_state *s, unsigned rate)
- {
- /* enable AC3 */
- if (rate == 48000 || rate == 44100) {
- // mute DAC
- maskb(s->iobase + CODEC_CMI_MIXER1, ~0, 0x40);
- // AC3EN for 037, 0x10
- maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0, 0x10);
- // AC3EN for 039, 0x04
- maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0, 0x04);
- if (s->capability & CAN_AC3_HW) {
- // SPD24SEL for 037, 0x02
- // SPD24SEL for 039, 0x20, but cannot be set
- maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0, 0x02);
- s->status |= DO_AC3_HW;
- if (s->chip_version >= 39)
- maskb(s->iobase + CODEC_CMI_MIXER1, ~1, 0);
- } else {
- // SPD32SEL for 037 & 039, 0x20
- maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0, 0x20);
- // set 176K sample rate to fix 033 HW bug
- if (s->chip_version == 33) {
- if (rate == 48000)
- maskb(s->iobase + CODEC_CMI_CHFORMAT + 1, ~0, 0x08);
- else
- maskb(s->iobase + CODEC_CMI_CHFORMAT + 1, ~0x08, 0);
- }
- s->status |= DO_AC3_SW;
- }
- } else {
- maskb(s->iobase + CODEC_CMI_MIXER1, ~0x40, 0);
- maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0x32, 0);
- maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0x24, 0);
- maskb(s->iobase + CODEC_CMI_CHFORMAT + 1, ~0x08, 0);
- if (s->chip_version == 33)
- maskb(s->iobase + CODEC_CMI_CHFORMAT + 1, ~0x08, 0);
- if (s->chip_version >= 39)
- maskb(s->iobase + CODEC_CMI_MIXER1, ~0, 1);
- s->status &= ~DO_AC3;
- }
- s->spdif_counter = 0;
- }
- static void set_ac3(struct cm_state *s, unsigned rate)
- {
- unsigned long flags;
- spin_lock_irqsave(&s->lock, flags);
- set_spdifout_unlocked(s, rate);
- set_ac3_unlocked(s,rate);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- static void trans_ac3(struct cm_state *s, void *dest, const char *source, int size)
- {
- int i = size / 2;
- unsigned long data;
- unsigned long *dst = (unsigned long *) dest;
- unsigned short *src = (unsigned short *)source;
- do {
- data = (unsigned long) *src++;
- data <<= 12; // ok for 16-bit data
- if (s->spdif_counter == 2 || s->spdif_counter == 3)
- data |= 0x40000000; // indicate AC-3 raw data
- if (parity(data))
- data |= 0x80000000; // parity
- if (s->spdif_counter == 0)
- data |= 3; // preamble 'M'
- else if (s->spdif_counter & 1)
- data |= 5; // odd, 'W'
- else
- data |= 9; // even, 'M'
- *dst++ = data;
- s->spdif_counter++;
- if (s->spdif_counter == 384)
- s->spdif_counter = 0;
- } while (--i);
- }
- static void set_adc_rate_unlocked(struct cm_state *s, unsigned rate)
- {
- unsigned char freq = 4;
- int i;
- if (rate > 48000)
- rate = 48000;
- if (rate < 8000)
- rate = 8000;
- for (i = 0; i < sizeof(rate_lookup) / sizeof(rate_lookup[0]); i++) {
- if (rate > rate_lookup[i].lower && rate <= rate_lookup[i].upper) {
- rate = rate_lookup[i].rate;
- freq = rate_lookup[i].freq;
- break;
- }
- }
- s->rateadc = rate;
- freq <<= 2;
- maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~0x1c, freq);
- }
- static void set_adc_rate(struct cm_state *s, unsigned rate)
- {
- unsigned long flags;
- unsigned char freq = 4;
- int i;
- if (rate > 48000)
- rate = 48000;
- if (rate < 8000)
- rate = 8000;
- for (i = 0; i < sizeof(rate_lookup) / sizeof(rate_lookup[0]); i++) {
- if (rate > rate_lookup[i].lower && rate <= rate_lookup[i].upper) {
- rate = rate_lookup[i].rate;
- freq = rate_lookup[i].freq;
- break;
- }
- }
- s->rateadc = rate;
- freq <<= 2;
- spin_lock_irqsave(&s->lock, flags);
- maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~0x1c, freq);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- static void set_dac_rate(struct cm_state *s, unsigned rate)
- {
- unsigned long flags;
- unsigned char freq = 4;
- int i;
- if (rate > 48000)
- rate = 48000;
- if (rate < 8000)
- rate = 8000;
- for (i = 0; i < sizeof(rate_lookup) / sizeof(rate_lookup[0]); i++) {
- if (rate > rate_lookup[i].lower && rate <= rate_lookup[i].upper) {
- rate = rate_lookup[i].rate;
- freq = rate_lookup[i].freq;
- break;
- }
- }
- s->ratedac = rate;
- freq <<= 5;
- spin_lock_irqsave(&s->lock, flags);
- maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~0xe0, freq);
- if (s->curr_channels <= 2)
- set_spdifout_unlocked(s, rate);
- if (s->status & DO_DUAL_DAC)
- set_adc_rate_unlocked(s, rate);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- /* --------------------------------------------------------------------- */
- static inline void reset_adc(struct cm_state *s)
- {
- /* reset bus master */
- outb(s->enable | CM_CH0_RESET, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
- udelay(10);
- outb(s->enable & ~CM_CH0_RESET, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
- }
- static inline void reset_dac(struct cm_state *s)
- {
- /* reset bus master */
- outb(s->enable | CM_CH1_RESET, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
- outb(s->enable & ~CM_CH1_RESET, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
- if (s->status & DO_DUAL_DAC)
- reset_adc(s);
- }
- static inline void pause_adc(struct cm_state *s)
- {
- maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~0, 4);
- }
- static inline void pause_dac(struct cm_state *s)
- {
- maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~0, 8);
- if (s->status & DO_DUAL_DAC)
- pause_adc(s);
- }
- static inline void disable_adc(struct cm_state *s)
- {
- /* disable channel */
- s->enable &= ~CM_ENABLE_CH0;
- outb(s->enable, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
- reset_adc(s);
- }
- static inline void disable_dac(struct cm_state *s)
- {
- /* disable channel */
- s->enable &= ~CM_ENABLE_CH1;
- outb(s->enable, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
- reset_dac(s);
- if (s->status & DO_DUAL_DAC)
- disable_adc(s);
- }
- static inline void enable_adc(struct cm_state *s)
- {
- if (!(s->enable & CM_ENABLE_CH0)) {
- /* enable channel */
- s->enable |= CM_ENABLE_CH0;
- outb(s->enable, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
- }
- maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~4, 0);
- }
- static inline void enable_dac_unlocked(struct cm_state *s)
- {
- if (!(s->enable & CM_ENABLE_CH1)) {
- /* enable channel */
- s->enable |= CM_ENABLE_CH1;
- outb(s->enable, s->iobase + CODEC_CMI_FUNCTRL0 + 2);
- }
- maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~8, 0);
- if (s->status & DO_DUAL_DAC)
- enable_adc(s);
- }
- static inline void enable_dac(struct cm_state *s)
- {
- unsigned long flags;
- spin_lock_irqsave(&s->lock, flags);
- enable_dac_unlocked(s);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- static inline void stop_adc_unlocked(struct cm_state *s)
- {
- if (s->enable & CM_ENABLE_CH0) {
- /* disable interrupt */
- maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~1, 0);
- disable_adc(s);
- }
- }
- static inline void stop_adc(struct cm_state *s)
- {
- unsigned long flags;
- spin_lock_irqsave(&s->lock, flags);
- stop_adc_unlocked(s);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- static inline void stop_dac_unlocked(struct cm_state *s)
- {
- if (s->enable & CM_ENABLE_CH1) {
- /* disable interrupt */
- maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~2, 0);
- disable_dac(s);
- }
- if (s->status & DO_DUAL_DAC)
- stop_adc_unlocked(s);
- }
- static inline void stop_dac(struct cm_state *s)
- {
- unsigned long flags;
- spin_lock_irqsave(&s->lock, flags);
- stop_dac_unlocked(s);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- static void start_adc_unlocked(struct cm_state *s)
- {
- if ((s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
- && s->dma_adc.ready) {
- /* enable interrupt */
- maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~0, 1);
- enable_adc(s);
- }
- }
- static void start_adc(struct cm_state *s)
- {
- unsigned long flags;
- spin_lock_irqsave(&s->lock, flags);
- start_adc_unlocked(s);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- static void start_dac1_unlocked(struct cm_state *s)
- {
- if ((s->dma_adc.mapped || s->dma_adc.count > 0) && s->dma_adc.ready) {
- /* enable interrupt */
- // maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~0, 1);
- enable_dac_unlocked(s);
- }
- }
- static void start_dac_unlocked(struct cm_state *s)
- {
- if ((s->dma_dac.mapped || s->dma_dac.count > 0) && s->dma_dac.ready) {
- /* enable interrupt */
- maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~0, 2);
- enable_dac_unlocked(s);
- }
- if (s->status & DO_DUAL_DAC)
- start_dac1_unlocked(s);
- }
- static void start_dac(struct cm_state *s)
- {
- unsigned long flags;
- spin_lock_irqsave(&s->lock, flags);
- start_dac_unlocked(s);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- static int prog_dmabuf(struct cm_state *s, unsigned rec);
- static int set_dac_channels(struct cm_state *s, int channels)
- {
- unsigned long flags;
- spin_lock_irqsave(&s->lock, flags);
- if ((channels > 2) && (channels <= s->max_channels)
- && (((s->fmt >> CM_CFMT_DACSHIFT) & CM_CFMT_MASK) == (CM_CFMT_STEREO | CM_CFMT_16BIT))) {
- set_spdifout_unlocked(s, 0);
- if (s->capability & CAN_MULTI_CH_HW) {
- // NXCHG
- maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 3, ~0, 0x80);
- // CHB3D or CHB3D5C
- maskb(s->iobase + CODEC_CMI_CHFORMAT + 3, ~0xa0, channels > 4 ? 0x80 : 0x20);
- // CHB3D6C
- maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~0x80, channels == 6 ? 0x80 : 0);
- // ENCENTER
- maskb(s->iobase + CODEC_CMI_MISC_CTRL, ~0x80, channels == 6 ? 0x80 : 0);
- s->status |= DO_MULTI_CH_HW;
- } else if (s->capability & CAN_DUAL_DAC) {
- unsigned char fmtm = ~0, fmts = 0;
- ssize_t ret;
- // ENDBDAC, turn on double DAC mode
- // XCHGDAC, CH0 -> back, CH1->front
- maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0, 0xC0);
- s->status |= DO_DUAL_DAC;
- // prepare secondary buffer
- spin_unlock_irqrestore(&s->lock, flags);
- ret = prog_dmabuf(s, 1);
- if (ret) return ret;
- spin_lock_irqsave(&s->lock, flags);
- // copy the hw state
- fmtm &= ~((CM_CFMT_STEREO | CM_CFMT_16BIT) << CM_CFMT_DACSHIFT);
- fmtm &= ~((CM_CFMT_STEREO | CM_CFMT_16BIT) << CM_CFMT_ADCSHIFT);
- // the HW only support 16-bit stereo
- fmts |= CM_CFMT_16BIT << CM_CFMT_DACSHIFT;
- fmts |= CM_CFMT_16BIT << CM_CFMT_ADCSHIFT;
- fmts |= CM_CFMT_STEREO << CM_CFMT_DACSHIFT;
- fmts |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
-
- set_fmt_unlocked(s, fmtm, fmts);
- set_adc_rate_unlocked(s, s->ratedac);
- }
- if (s->speakers > 2)
- maskb(s->iobase + CODEC_CMI_MISC_CTRL + 3, ~0x04, 0);
- s->curr_channels = channels;
- } else {
- if (s->status & DO_MULTI_CH_HW) {
- maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 3, ~0x80, 0);
- maskb(s->iobase + CODEC_CMI_CHFORMAT + 3, ~0xa0, 0);
- maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~0x80, 0);
- } else if (s->status & DO_DUAL_DAC) {
- maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0x80, 0);
- }
- // N4SPK3D, enable 4 speaker mode (analog duplicate)
- if (s->speakers > 2)
- maskb(s->iobase + CODEC_CMI_MISC_CTRL + 3, ~0, 0x04);
- s->status &= ~DO_MULTI_CH;
- s->curr_channels = s->fmt & (CM_CFMT_STEREO << CM_CFMT_DACSHIFT) ? 2 : 1;
- }
- spin_unlock_irqrestore(&s->lock, flags);
- return s->curr_channels;
- }
- /* --------------------------------------------------------------------- */
- #define DMABUF_DEFAULTORDER (16-PAGE_SHIFT)
- #define DMABUF_MINORDER 1
- static void dealloc_dmabuf(struct dmabuf *db)
- {
- struct page *pstart, *pend;
-
- if (db->rawbuf) {
- /* undo marking the pages as reserved */
- pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
- for (pstart = virt_to_page(db->rawbuf); pstart <= pend; pstart++)
- mem_map_unreserve(pstart);
- free_pages((unsigned long)db->rawbuf, db->buforder);
- }
- db->rawbuf = NULL;
- db->mapped = db->ready = 0;
- }
- /* Ch1 is used for playback, Ch0 is used for recording */
- static int prog_dmabuf(struct cm_state *s, unsigned rec)
- {
- struct dmabuf *db = rec ? &s->dma_adc : &s->dma_dac;
- unsigned rate = rec ? s->rateadc : s->ratedac;
- int order;
- unsigned bytepersec;
- unsigned bufs;
- struct page *pstart, *pend;
- unsigned char fmt;
- unsigned long flags;
- fmt = s->fmt;
- if (rec) {
- stop_adc(s);
- fmt >>= CM_CFMT_ADCSHIFT;
- } else {
- stop_dac(s);
- fmt >>= CM_CFMT_DACSHIFT;
- }
- fmt &= CM_CFMT_MASK;
- db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
- if (!db->rawbuf) {
- db->ready = db->mapped = 0;
- for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
- if ((db->rawbuf = (void *)__get_free_pages(GFP_KERNEL | GFP_DMA, order)))
- break;
- if (!db->rawbuf)
- return -ENOMEM;
- db->buforder = order;
- db->rawphys = virt_to_bus(db->rawbuf);
- if ((db->rawphys ^ (db->rawphys + (PAGE_SIZE << db->buforder) - 1)) & ~0xffff)
- printk(KERN_DEBUG "cmpci: DMA buffer crosses 64k boundary: busaddr 0x%lx size %ldn",
- (long) db->rawphys, PAGE_SIZE << db->buforder);
- if ((db->rawphys + (PAGE_SIZE << db->buforder) - 1) & ~0xffffff)
- printk(KERN_DEBUG "cmpci: DMA buffer beyond 16MB: busaddr 0x%lx size %ldn",
- (long) db->rawphys, PAGE_SIZE << db->buforder);
- /* now mark the pages as reserved; otherwise remap_page_range doesn't do what we want */
- pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
- for (pstart = virt_to_page(db->rawbuf); pstart <= pend; pstart++)
- mem_map_reserve(pstart);
- }
- bytepersec = rate << sample_shift[fmt];
- bufs = PAGE_SIZE << db->buforder;
- if (db->ossfragshift) {
- if ((1000 << db->ossfragshift) < bytepersec)
- db->fragshift = ld2(bytepersec/1000);
- else
- db->fragshift = db->ossfragshift;
- } else {
- db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
- if (db->fragshift < 3)
- db->fragshift = 3;
- }
- db->numfrag = bufs >> db->fragshift;
- while (db->numfrag < 4 && db->fragshift > 3) {
- db->fragshift--;
- db->numfrag = bufs >> db->fragshift;
- }
- db->fragsize = 1 << db->fragshift;
- if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
- db->numfrag = db->ossmaxfrags;
- /* to make fragsize >= 4096 */
- db->fragsamples = db->fragsize >> sample_shift[fmt];
- db->dmasize = db->numfrag << db->fragshift;
- db->dmasamples = db->dmasize >> sample_shift[fmt];
- memset(db->rawbuf, (fmt & CM_CFMT_16BIT) ? 0 : 0x80, db->dmasize);
- spin_lock_irqsave(&s->lock, flags);
- if (rec) {
- if (s->status & DO_DUAL_DAC)
- set_dmadac1(s, db->rawphys, db->dmasize >> sample_shift[fmt]);
- else
- set_dmaadc(s, db->rawphys, db->dmasize >> sample_shift[fmt]);
- /* program sample counts */
- set_countdac(s, db->fragsamples);
- } else {
- set_dmadac(s, db->rawphys, db->dmasize >> sample_shift[fmt]);
- /* program sample counts */
- set_countdac(s, db->fragsamples);
- }
- spin_unlock_irqrestore(&s->lock, flags);
- db->ready = 1;
- return 0;
- }
- static inline void clear_advance(struct cm_state *s)
- {
- unsigned char c = (s->fmt & (CM_CFMT_16BIT << CM_CFMT_DACSHIFT)) ? 0 : 0x80;
- unsigned char *buf = s->dma_dac.rawbuf;
- unsigned char *buf1 = s->dma_adc.rawbuf;
- unsigned bsize = s->dma_dac.dmasize;
- unsigned bptr = s->dma_dac.swptr;
- unsigned len = s->dma_dac.fragsize;
- if (bptr + len > bsize) {
- unsigned x = bsize - bptr;
- memset(buf + bptr, c, x);
- if (s->status & DO_DUAL_DAC)
- memset(buf1 + bptr, c, x);
- bptr = 0;
- len -= x;
- }
- memset(buf + bptr, c, len);
- if (s->status & DO_DUAL_DAC)
- memset(buf1 + bptr, c, len);
- }
- /* call with spinlock held! */
- static void cm_update_ptr(struct cm_state *s)
- {
- unsigned hwptr;
- int diff;
- /* update ADC pointer */
- if (s->dma_adc.ready) {
- if (s->status & DO_DUAL_DAC) {
- hwptr = get_dmaadc(s) % s->dma_adc.dmasize;
- diff = (s->dma_adc.dmasize + hwptr - s->dma_adc.hwptr) % s->dma_adc.dmasize;
- s->dma_adc.hwptr = hwptr;
- s->dma_adc.total_bytes += diff;
- if (s->dma_adc.mapped) {
- s->dma_adc.count += diff;
- if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
- wake_up(&s->dma_adc.wait);
- } else {
- s->dma_adc.count -= diff;
- if (s->dma_adc.count <= 0) {
- pause_adc(s);
- s->dma_adc.error++;
- } else if (s->dma_adc.count <= (signed)s->dma_adc.fragsize && !s->dma_adc.endcleared) {
- clear_advance(s);
- s->dma_adc.endcleared = 1;
- }
- if (s->dma_dac.count + (signed)s->dma_dac.fragsize <= (signed)s->dma_dac.dmasize)
- wake_up(&s->dma_adc.wait);
- }
- } else {
- hwptr = get_dmaadc(s) % s->dma_adc.dmasize;
- diff = (s->dma_adc.dmasize + hwptr - s->dma_adc.hwptr) % s->dma_adc.dmasize;
- s->dma_adc.hwptr = hwptr;
- s->dma_adc.total_bytes += diff;
- s->dma_adc.count += diff;
- if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
- wake_up(&s->dma_adc.wait);
- if (!s->dma_adc.mapped) {
- if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
- pause_adc(s);
- s->dma_adc.error++;
- }
- }
- }
- }
- /* update DAC pointer */
- if (s->dma_dac.ready) {
- hwptr = get_dmadac(s) % s->dma_dac.dmasize;
- diff = (s->dma_dac.dmasize + hwptr - s->dma_dac.hwptr) % s->dma_dac.dmasize;
- s->dma_dac.hwptr = hwptr;
- s->dma_dac.total_bytes += diff;
- if (s->dma_dac.mapped) {
- s->dma_dac.count += diff;
- if (s->dma_dac.count >= (signed)s->dma_dac.fragsize)
- wake_up(&s->dma_dac.wait);
- } else {
- s->dma_dac.count -= diff;
- if (s->dma_dac.count <= 0) {
- pause_dac(s);
- s->dma_dac.error++;
- } else if (s->dma_dac.count <= (signed)s->dma_dac.fragsize && !s->dma_dac.endcleared) {
- clear_advance(s);
- s->dma_dac.endcleared = 1;
- }
- if (s->dma_dac.count + (signed)s->dma_dac.fragsize <= (signed)s->dma_dac.dmasize)
- wake_up(&s->dma_dac.wait);
- }
- }
- }
- #ifdef CONFIG_SOUND_CMPCI_MIDI
- /* hold spinlock for the following! */
- static void cm_handle_midi(struct cm_state *s)
- {
- unsigned char ch;
- int wake;
- wake = 0;
- while (!(inb(s->iomidi+1) & 0x80)) {
- ch = inb(s->iomidi);
- if (s->midi.icnt < MIDIINBUF) {
- s->midi.ibuf[s->midi.iwr] = ch;
- s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
- s->midi.icnt++;
- }
- wake = 1;
- }
- if (wake)
- wake_up(&s->midi.iwait);
- wake = 0;
- while (!(inb(s->iomidi+1) & 0x40) && s->midi.ocnt > 0) {
- outb(s->midi.obuf[s->midi.ord], s->iomidi);
- s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
- s->midi.ocnt--;
- if (s->midi.ocnt < MIDIOUTBUF-16)
- wake = 1;
- }
- if (wake)
- wake_up(&s->midi.owait);
- }
- #endif
- static void cm_interrupt(int irq, void *dev_id, struct pt_regs *regs)
- {
- struct cm_state *s = (struct cm_state *)dev_id;
- unsigned int intsrc, intstat;
- unsigned char mask = 0;
-
- /* fastpath out, to ease interrupt sharing */
- intsrc = inl(s->iobase + CODEC_CMI_INT_STATUS);
- if (!(intsrc & 0x80000000))
- return;
- spin_lock(&s->lock);
- intstat = inb(s->iobase + CODEC_CMI_INT_HLDCLR + 2);
- /* acknowledge interrupt */
- if (intsrc & CM_INT_CH0)
- mask |= 1;
- if (intsrc & CM_INT_CH1)
- mask |= 2;
- outb(intstat & ~mask, s->iobase + CODEC_CMI_INT_HLDCLR + 2);
- outb(intstat | mask, s->iobase + CODEC_CMI_INT_HLDCLR + 2);
- cm_update_ptr(s);
- #ifdef CONFIG_SOUND_CMPCI_MIDI
- cm_handle_midi(s);
- #endif
- spin_unlock(&s->lock);
- }
- #ifdef CONFIG_SOUND_CMPCI_MIDI
- static void cm_midi_timer(unsigned long data)
- {
- struct cm_state *s = (struct cm_state *)data;
- unsigned long flags;
-
- spin_lock_irqsave(&s->lock, flags);
- cm_handle_midi(s);
- spin_unlock_irqrestore(&s->lock, flags);
- s->midi.timer.expires = jiffies+1;
- add_timer(&s->midi.timer);
- }
- #endif
- /* --------------------------------------------------------------------- */
- static const char invalid_magic[] = KERN_CRIT "cmpci: invalid magic valuen";
- #ifdef CONFIG_SOUND_CMPCI /* support multiple chips */
- #define VALIDATE_STATE(s)
- #else
- #define VALIDATE_STATE(s)
- ({
- if (!(s) || (s)->magic != CM_MAGIC) {
- printk(invalid_magic);
- return -ENXIO;
- }
- })
- #endif
- /* --------------------------------------------------------------------- */
- #define MT_4 1
- #define MT_5MUTE 2
- #define MT_4MUTEMONO 3
- #define MT_6MUTE 4
- #define MT_5MUTEMONO 5
- static const struct {
- unsigned left;
- unsigned right;
- unsigned type;
- unsigned rec;
- unsigned play;
- } mixtable[SOUND_MIXER_NRDEVICES] = {
- [SOUND_MIXER_CD] = { DSP_MIX_CDVOLIDX_L, DSP_MIX_CDVOLIDX_R, MT_5MUTE, 0x04, 0x02 },
- [SOUND_MIXER_LINE] = { DSP_MIX_LINEVOLIDX_L, DSP_MIX_LINEVOLIDX_R, MT_5MUTE, 0x10, 0x08 },
- [SOUND_MIXER_MIC] = { DSP_MIX_MICVOLIDX, DSP_MIX_MICVOLIDX, MT_5MUTEMONO, 0x01, 0x01 },
- [SOUND_MIXER_SYNTH] = { DSP_MIX_FMVOLIDX_L, DSP_MIX_FMVOLIDX_R, MT_5MUTE, 0x40, 0x00 },
- [SOUND_MIXER_VOLUME] = { DSP_MIX_MASTERVOLIDX_L, DSP_MIX_MASTERVOLIDX_R, MT_5MUTE, 0x00, 0x00 },
- [SOUND_MIXER_PCM] = { DSP_MIX_VOICEVOLIDX_L, DSP_MIX_VOICEVOLIDX_R, MT_5MUTE, 0x00, 0x00 },
- [SOUND_MIXER_SPEAKER]= { DSP_MIX_SPKRVOLIDX, DSP_MIX_SPKRVOLIDX, MT_5MUTEMONO, 0x01, 0x01 }
- };
- static const unsigned char volidx[SOUND_MIXER_NRDEVICES] =
- {
- [SOUND_MIXER_CD] = 1,
- [SOUND_MIXER_LINE] = 2,
- [SOUND_MIXER_MIC] = 3,
- [SOUND_MIXER_SYNTH] = 4,
- [SOUND_MIXER_VOLUME] = 5,
- [SOUND_MIXER_PCM] = 6,
- [SOUND_MIXER_SPEAKER]= 7
- };
- static unsigned mixer_recmask(struct cm_state *s)
- {
- int i, j, k;
- j = rdmixer(s, DSP_MIX_ADCMIXIDX_L);
- j &= 0x7f;
- for (k = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
- if (j & mixtable[i].rec)
- k |= 1 << i;
- return k;
- }
- static int mixer_ioctl(struct cm_state *s, unsigned int cmd, unsigned long arg)
- {
- unsigned long flags;
- int i, val, j;
- unsigned char l, r, rl, rr;
- VALIDATE_STATE(s);
- if (cmd == SOUND_MIXER_INFO) {
- mixer_info info;
- strncpy(info.id, "cmpci", sizeof(info.id));
- strncpy(info.name, "C-Media PCI", sizeof(info.name));
- info.modify_counter = s->mix.modcnt;
- if (copy_to_user((void *)arg, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- if (cmd == SOUND_OLD_MIXER_INFO) {
- _old_mixer_info info;
- strncpy(info.id, "cmpci", sizeof(info.id));
- strncpy(info.name, "C-Media cmpci", sizeof(info.name));
- if (copy_to_user((void *)arg, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- if (cmd == OSS_GETVERSION)
- return put_user(SOUND_VERSION, (int *)arg);
- if (_IOC_TYPE(cmd) != 'M' || _IOC_SIZE(cmd) != sizeof(int))
- return -EINVAL;
- if (_IOC_DIR(cmd) == _IOC_READ) {
- switch (_IOC_NR(cmd)) {
- case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
- return put_user(mixer_recmask(s), (int *)arg);
-
- case SOUND_MIXER_OUTSRC: /* Arg contains a bit for each recording source */
- return put_user(mixer_recmask(s), (int *)arg);//need fix
-
- case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
- for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
- if (mixtable[i].type)
- val |= 1 << i;
- return put_user(val, (int *)arg);
- case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
- for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
- if (mixtable[i].rec)
- val |= 1 << i;
- return put_user(val, (int *)arg);
-
- case SOUND_MIXER_OUTMASK: /* Arg contains a bit for each supported recording source */
- for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
- if (mixtable[i].play)
- val |= 1 << i;
- return put_user(val, (int *)arg);
-
- case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
- for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
- if (mixtable[i].type && mixtable[i].type != MT_4MUTEMONO)
- val |= 1 << i;
- return put_user(val, (int *)arg);
-
- case SOUND_MIXER_CAPS:
- return put_user(0, (int *)arg);
- default:
- i = _IOC_NR(cmd);
- if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].type)
- return -EINVAL;
- if (!volidx[i])
- return -EINVAL;
- return put_user(s->mix.vol[volidx[i]-1], (int *)arg);
- }
- }
- if (_IOC_DIR(cmd) != (_IOC_READ|_IOC_WRITE))
- return -EINVAL;
- s->mix.modcnt++;
- switch (_IOC_NR(cmd)) {
- case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
- if (get_user(val, (int *)arg))
- return -EFAULT;
- i = generic_hweight32(val);
- for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
- if (!(val & (1 << i)))
- continue;
- if (!mixtable[i].rec) {
- val &= ~(1 << i);
- continue;
- }
- j |= mixtable[i].rec;
- }
- spin_lock_irqsave(&s->lock, flags);
- wrmixer(s, DSP_MIX_ADCMIXIDX_L, j);
- wrmixer(s, DSP_MIX_ADCMIXIDX_R, (j & 1) | (j>>1));
- spin_unlock_irqrestore(&s->lock, flags);
- return 0;
- case SOUND_MIXER_OUTSRC: /* Arg contains a bit for each recording source */
- if (get_user(val, (int *)arg))
- return -EFAULT;
- for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
- if (!(val & (1 << i)))
- continue;
- if (!mixtable[i].play) {
- val &= ~(1 << i);
- continue;
- }
- j |= mixtable[i].play;
- }
- spin_lock_irqsave(&s->lock, flags);
- frobindir(s, DSP_MIX_OUTMIXIDX, 0x1f, j);
- spin_unlock_irqrestore(&s->lock, flags);
- return 0;
- default:
- i = _IOC_NR(cmd);
- if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].type)
- return -EINVAL;
- if (get_user(val, (int *)arg))
- return -EFAULT;
- l = val & 0xff;
- r = (val >> 8) & 0xff;
- if (l > 100)
- l = 100;
- if (r > 100)
- r = 100;
- spin_lock_irqsave(&s->lock, flags);
- switch (mixtable[i].type) {
- case MT_4:
- if (l >= 10)
- l -= 10;
- if (r >= 10)
- r -= 10;
- frobindir(s, mixtable[i].left, 0xf0, l / 6);
- frobindir(s, mixtable[i].right, 0xf0, l / 6);
- break;
- case MT_4MUTEMONO:
- rl = (l < 4 ? 0 : (l - 5) / 3) & 31;
- rr = (rl >> 2) & 7;
- wrmixer(s, mixtable[i].left, rl<<3);
- maskb(s->iobase + CODEC_CMI_MIXER2, ~0x0e, rr<<1);
- break;
-
- case MT_5MUTEMONO:
- r = l;
- rl = l < 4 ? 0 : (l - 5) / 3;
- rr = rl >> 2;
- wrmixer(s, mixtable[i].left, rl<<3);
- maskb(s->iobase + CODEC_CMI_MIXER2, ~0x0e, rr<<1);
- break;
-
- case MT_5MUTE:
- rl = l < 4 ? 0 : (l - 5) / 3;
- rr = r < 4 ? 0 : (r - 5) / 3;
- wrmixer(s, mixtable[i].left, rl<<3);
- wrmixer(s, mixtable[i].right, rr<<3);
- break;
- case MT_6MUTE:
- if (l < 6)
- rl = 0x00;
- else
- rl = l * 2 / 3;
- if (r < 6)
- rr = 0x00;
- else
- rr = r * 2 / 3;
- wrmixer(s, mixtable[i].left, rl);
- wrmixer(s, mixtable[i].right, rr);
- break;
- }
- spin_unlock_irqrestore(&s->lock, flags);
- if (!volidx[i])
- return -EINVAL;
- s->mix.vol[volidx[i]-1] = val;
- return put_user(s->mix.vol[volidx[i]-1], (int *)arg);
- }
- }
- /* --------------------------------------------------------------------- */
- static int cm_open_mixdev(struct inode *inode, struct file *file)
- {
- int minor = MINOR(inode->i_rdev);
- struct cm_state *s = devs;
- while (s && s->dev_mixer != minor)
- s = s->next;
- if (!s)
- return -ENODEV;
- VALIDATE_STATE(s);
- file->private_data = s;
- return 0;
- }
- static int cm_release_mixdev(struct inode *inode, struct file *file)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
-
- VALIDATE_STATE(s);
- return 0;
- }
- static int cm_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
- {
- return mixer_ioctl((struct cm_state *)file->private_data, cmd, arg);
- }
- static /*const*/ struct file_operations cm_mixer_fops = {
- owner: THIS_MODULE,
- llseek: no_llseek,
- ioctl: cm_ioctl_mixdev,
- open: cm_open_mixdev,
- release: cm_release_mixdev,
- };
- /* --------------------------------------------------------------------- */
- static int drain_dac(struct cm_state *s, int nonblock)
- {
- DECLARE_WAITQUEUE(wait, current);
- unsigned long flags;
- int count, tmo;
- if (s->dma_dac.mapped || !s->dma_dac.ready)
- return 0;
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&s->dma_dac.wait, &wait);
- for (;;) {
- spin_lock_irqsave(&s->lock, flags);
- count = s->dma_dac.count;
- spin_unlock_irqrestore(&s->lock, flags);
- if (count <= 0)
- break;
- if (signal_pending(current))
- break;
- if (nonblock) {
- remove_wait_queue(&s->dma_dac.wait, &wait);
- set_current_state(TASK_RUNNING);
- return -EBUSY;
- }
- tmo = 3 * HZ * (count + s->dma_dac.fragsize) / 2 / s->ratedac;
- tmo >>= sample_shift[(s->fmt >> CM_CFMT_DACSHIFT) & CM_CFMT_MASK];
- if (!schedule_timeout(tmo + 1))
- printk(KERN_DEBUG "cmpci: dma timed out??n");
- }
- remove_wait_queue(&s->dma_dac.wait, &wait);
- set_current_state(TASK_RUNNING);
- if (signal_pending(current))
- return -ERESTARTSYS;
- return 0;
- }
- /* --------------------------------------------------------------------- */
- static ssize_t cm_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
- ssize_t ret;
- unsigned long flags;
- unsigned swptr;
- int cnt;
- VALIDATE_STATE(s);
- if (ppos != &file->f_pos)
- return -ESPIPE;
- if (s->dma_adc.mapped)
- return -ENXIO;
- if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
- return ret;
- if (!access_ok(VERIFY_WRITE, buffer, count))
- return -EFAULT;
- ret = 0;
- while (count > 0) {
- spin_lock_irqsave(&s->lock, flags);
- swptr = s->dma_adc.swptr;
- cnt = s->dma_adc.dmasize-swptr;
- if (s->dma_adc.count < cnt)
- cnt = s->dma_adc.count;
- spin_unlock_irqrestore(&s->lock, flags);
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- start_adc(s);
- if (file->f_flags & O_NONBLOCK)
- return ret ? ret : -EAGAIN;
- if (!interruptible_sleep_on_timeout(&s->dma_adc.wait, HZ)) {
- printk(KERN_DEBUG "cmpci: read: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %un",
- s->dma_adc.dmasize, s->dma_adc.fragsize, s->dma_adc.count,
- s->dma_adc.hwptr, s->dma_adc.swptr);
- spin_lock_irqsave(&s->lock, flags);
- stop_adc_unlocked(s);
- set_dmaadc(s, s->dma_adc.rawphys, s->dma_adc.dmasamples);
- /* program sample counts */
- set_countadc(s, s->dma_adc.fragsamples);
- s->dma_adc.count = s->dma_adc.hwptr = s->dma_adc.swptr = 0;
- spin_unlock_irqrestore(&s->lock, flags);
- }
- if (signal_pending(current))
- return ret ? ret : -ERESTARTSYS;
- continue;
- }
- if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt))
- return ret ? ret : -EFAULT;
- swptr = (swptr + cnt) % s->dma_adc.dmasize;
- spin_lock_irqsave(&s->lock, flags);
- s->dma_adc.swptr = swptr;
- s->dma_adc.count -= cnt;
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- start_adc_unlocked(s);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- return ret;
- }
- static ssize_t cm_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
- ssize_t ret;
- unsigned long flags;
- unsigned swptr;
- int cnt;
- VALIDATE_STATE(s);
- if (ppos != &file->f_pos)
- return -ESPIPE;
- if (s->dma_dac.mapped)
- return -ENXIO;
- if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
- return ret;
- if (!access_ok(VERIFY_READ, buffer, count))
- return -EFAULT;
- if (s->status & DO_DUAL_DAC) {
- if (s->dma_adc.mapped)
- return -ENXIO;
- if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
- return ret;
- if (!access_ok(VERIFY_READ, buffer, count))
- return -EFAULT;
- }
- ret = 0;
- while (count > 0) {
- spin_lock_irqsave(&s->lock, flags);
- if (s->dma_dac.count < 0) {
- s->dma_dac.count = 0;
- s->dma_dac.swptr = s->dma_dac.hwptr;
- }
- if (s->status & DO_DUAL_DAC) {
- s->dma_adc.swptr = s->dma_dac.swptr;
- s->dma_adc.count = s->dma_dac.count;
- s->dma_adc.endcleared = s->dma_dac.endcleared;
- }
- swptr = s->dma_dac.swptr;
- cnt = s->dma_dac.dmasize-swptr;
- if (s->status & DO_AC3_SW) {
- if (s->dma_dac.count + 2 * cnt > s->dma_dac.dmasize)
- cnt = (s->dma_dac.dmasize - s->dma_dac.count) / 2;
- } else {
- if (s->dma_dac.count + cnt > s->dma_dac.dmasize)
- cnt = s->dma_dac.dmasize - s->dma_dac.count;
- }
- spin_unlock_irqrestore(&s->lock, flags);
- if (cnt > count)
- cnt = count;
- if ((s->status & DO_DUAL_DAC) && (cnt > count / 2))
- cnt = count / 2;
- if (cnt <= 0) {
- start_dac(s);
- if (file->f_flags & O_NONBLOCK)
- return ret ? ret : -EAGAIN;
- if (!interruptible_sleep_on_timeout(&s->dma_dac.wait, HZ)) {
- printk(KERN_DEBUG "cmpci: write: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %un",
- s->dma_dac.dmasize, s->dma_dac.fragsize, s->dma_dac.count,
- s->dma_dac.hwptr, s->dma_dac.swptr);
- spin_lock_irqsave(&s->lock, flags);
- stop_dac_unlocked(s);
- set_dmadac(s, s->dma_dac.rawphys, s->dma_dac.dmasamples);
- /* program sample counts */
- set_countdac(s, s->dma_dac.fragsamples);
- s->dma_dac.count = s->dma_dac.hwptr = s->dma_dac.swptr = 0;
- if (s->status & DO_DUAL_DAC) {
- set_dmadac1(s, s->dma_adc.rawphys, s->dma_adc.dmasamples);
- s->dma_adc.count = s->dma_adc.hwptr = s->dma_adc.swptr = 0;
- }
- spin_unlock_irqrestore(&s->lock, flags);
- }
- if (signal_pending(current))
- return ret ? ret : -ERESTARTSYS;
- continue;
- }
- if (s->status & DO_AC3_SW) {
- // clip exceeded data, caught by 033 and 037
- if (swptr + 2 * cnt > s->dma_dac.dmasize)
- cnt = (s->dma_dac.dmasize - swptr) / 2;
- trans_ac3(s, s->dma_dac.rawbuf + swptr, buffer, cnt);
- swptr = (swptr + 2 * cnt) % s->dma_dac.dmasize;
- } else if (s->status & DO_DUAL_DAC) {
- int i;
- unsigned long *src, *dst0, *dst1;
- src = (unsigned long *) buffer;
- dst0 = (unsigned long *) (s->dma_dac.rawbuf + swptr);
- dst1 = (unsigned long *) (s->dma_adc.rawbuf + swptr);
- // copy left/right sample at one time
- for (i = 0; i <= cnt / 4; i++) {
- *dst0++ = *src++;
- *dst1++ = *src++;
- }
- swptr = (swptr + cnt) % s->dma_dac.dmasize;
- } else {
- if (copy_from_user(s->dma_dac.rawbuf + swptr, buffer, cnt))
- return ret ? ret : -EFAULT;
- swptr = (swptr + cnt) % s->dma_dac.dmasize;
- }
- spin_lock_irqsave(&s->lock, flags);
- s->dma_dac.swptr = swptr;
- s->dma_dac.count += cnt;
- if (s->status & DO_AC3_SW)
- s->dma_dac.count += cnt;
- s->dma_dac.endcleared = 0;
- spin_unlock_irqrestore(&s->lock, flags);
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- if (s->status & DO_DUAL_DAC) {
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- }
- start_dac(s);
- }
- return ret;
- }
- static unsigned int cm_poll(struct file *file, struct poll_table_struct *wait)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
- unsigned long flags;
- unsigned int mask = 0;
- VALIDATE_STATE(s);
- if (file->f_mode & FMODE_WRITE)
- poll_wait(file, &s->dma_dac.wait, wait);
- if (file->f_mode & FMODE_READ)
- poll_wait(file, &s->dma_adc.wait, wait);
- spin_lock_irqsave(&s->lock, flags);
- cm_update_ptr(s);
- if (file->f_mode & FMODE_READ) {
- if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
- mask |= POLLIN | POLLRDNORM;
- }
- if (file->f_mode & FMODE_WRITE) {
- if (s->dma_dac.mapped) {
- if (s->dma_dac.count >= (signed)s->dma_dac.fragsize)
- mask |= POLLOUT | POLLWRNORM;
- } else {
- if ((signed)s->dma_dac.dmasize >= s->dma_dac.count + (signed)s->dma_dac.fragsize)
- mask |= POLLOUT | POLLWRNORM;
- }
- }
- spin_unlock_irqrestore(&s->lock, flags);
- return mask;
- }
- static int cm_mmap(struct file *file, struct vm_area_struct *vma)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
- struct dmabuf *db;
- int ret = -EINVAL;
- unsigned long size;
- VALIDATE_STATE(s);
- lock_kernel();
- if (vma->vm_flags & VM_WRITE) {
- if ((ret = prog_dmabuf(s, 0)) != 0)
- goto out;
- db = &s->dma_dac;
- } else if (vma->vm_flags & VM_READ) {
- if ((ret = prog_dmabuf(s, 1)) != 0)
- goto out;
- db = &s->dma_adc;
- } else
- goto out;
- ret = -EINVAL;
- if (vma->vm_pgoff != 0)
- goto out;
- size = vma->vm_end - vma->vm_start;
- if (size > (PAGE_SIZE << db->buforder))
- goto out;
- ret = -EINVAL;
- if (remap_page_range(vma->vm_start, virt_to_phys(db->rawbuf), size, vma->vm_page_prot))
- goto out;
- db->mapped = 1;
- ret = 0;
- out:
- unlock_kernel();
- return ret;
- }
- static int cm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
- unsigned long flags;
- audio_buf_info abinfo;
- count_info cinfo;
- int val, mapped, ret;
- unsigned char fmtm, fmtd;
- VALIDATE_STATE(s);
- mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) ||
- ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
- switch (cmd) {
- case OSS_GETVERSION:
- return put_user(SOUND_VERSION, (int *)arg);
- case SNDCTL_DSP_SYNC:
- if (file->f_mode & FMODE_WRITE)
- return drain_dac(s, 0/*file->f_flags & O_NONBLOCK*/);
- return 0;
-
- case SNDCTL_DSP_SETDUPLEX:
- return 0;
- case SNDCTL_DSP_GETCAPS:
- return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP | DSP_CAP_BIND, (int *)arg);
-
- case SNDCTL_DSP_RESET:
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- synchronize_irq();
- s->dma_dac.swptr = s->dma_dac.hwptr = s->dma_dac.count = s->dma_dac.total_bytes = 0;
- if (s->status & DO_DUAL_DAC)
- s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- synchronize_irq();
- s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
- }
- return 0;
- case SNDCTL_DSP_SPEED:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (val >= 0) {
- if (file->f_mode & FMODE_READ) {
- spin_lock_irqsave(&s->lock, flags);
- stop_adc_unlocked(s);
- s->dma_adc.ready = 0;
- set_adc_rate_unlocked(s, val);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (s->status & DO_DUAL_DAC)
- s->dma_adc.ready = 0;
- set_dac_rate(s, val);
- }
- }
- return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, (int *)arg);
- case SNDCTL_DSP_STEREO:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- fmtd = 0;
- fmtm = ~0;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- if (val)
- fmtd |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
- else
- fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_ADCSHIFT);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val)
- fmtd |= CM_CFMT_STEREO << CM_CFMT_DACSHIFT;
- else
- fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_DACSHIFT);
- if (s->status & DO_DUAL_DAC) {
- s->dma_adc.ready = 0;
- if (val)
- fmtd |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
- else
- fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_ADCSHIFT);
- }
- }
- set_fmt(s, fmtm, fmtd);
- return 0;
- case SNDCTL_DSP_CHANNELS:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (val != 0) {
- fmtd = 0;
- fmtm = ~0;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- if (val >= 2)
- fmtd |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
- else
- fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_ADCSHIFT);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val >= 2)
- fmtd |= CM_CFMT_STEREO << CM_CFMT_DACSHIFT;
- else
- fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_DACSHIFT);
- if (s->status & DO_DUAL_DAC) {
- s->dma_adc.ready = 0;
- if (val >= 2)
- fmtd |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
- else
- fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_ADCSHIFT);
- }
- }
- set_fmt(s, fmtm, fmtd);
- if ((s->capability & CAN_MULTI_CH)
- && (file->f_mode & FMODE_WRITE)) {
- val = set_dac_channels(s, val);
- return put_user(val, (int *)arg);
- }
- }
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_STEREO << CM_CFMT_ADCSHIFT)
- : (CM_CFMT_STEREO << CM_CFMT_DACSHIFT))) ? 2 : 1, (int *)arg);
-
- case SNDCTL_DSP_GETFMTS: /* Returns a mask */
- return put_user(AFMT_S16_LE|AFMT_U8|AFMT_AC3, (int *)arg);
-
- case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (val != AFMT_QUERY) {
- fmtd = 0;
- fmtm = ~0;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- if (val == AFMT_S16_LE)
- fmtd |= CM_CFMT_16BIT << CM_CFMT_ADCSHIFT;
- else
- fmtm &= ~(CM_CFMT_16BIT << CM_CFMT_ADCSHIFT);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val == AFMT_S16_LE || val == AFMT_AC3)
- fmtd |= CM_CFMT_16BIT << CM_CFMT_DACSHIFT;
- else
- fmtm &= ~(CM_CFMT_16BIT << CM_CFMT_DACSHIFT);
- if (val == AFMT_AC3) {
- fmtd |= CM_CFMT_STEREO << CM_CFMT_DACSHIFT;
- set_ac3(s, s->ratedac);
- } else
- set_ac3(s, 0);
- if (s->status & DO_DUAL_DAC) {
- s->dma_adc.ready = 0;
- if (val == AFMT_S16_LE)
- fmtd |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT;
- else
- fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_ADCSHIFT);
- }
- }
- set_fmt(s, fmtm, fmtd);
- }
- if (s->status & DO_AC3) return put_user(AFMT_AC3, (int *)arg);
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_16BIT << CM_CFMT_ADCSHIFT)
- : (CM_CFMT_16BIT << CM_CFMT_DACSHIFT))) ? AFMT_S16_LE : AFMT_U8, (int *)arg);
- case SNDCTL_DSP_POST:
- return 0;
- case SNDCTL_DSP_GETTRIGGER:
- val = 0;
- if (s->status & DO_DUAL_DAC) {
- if (file->f_mode & FMODE_WRITE &&
- (s->enable & CM_ENABLE_CH1) &&
- (s->enable & CM_ENABLE_CH0))
- val |= PCM_ENABLE_OUTPUT;
- return put_user(val, (int *)arg);
- }
- if (file->f_mode & FMODE_READ && s->enable & CM_ENABLE_CH0)
- val |= PCM_ENABLE_INPUT;
- if (file->f_mode & FMODE_WRITE && s->enable & CM_ENABLE_CH1)
- val |= PCM_ENABLE_OUTPUT;
- return put_user(val, (int *)arg);
- case SNDCTL_DSP_SETTRIGGER:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (file->f_mode & FMODE_READ) {
- if (val & PCM_ENABLE_INPUT) {
- if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
- return ret;
- start_adc(s);
- } else
- stop_adc(s);
- }
- if (file->f_mode & FMODE_WRITE) {
- if (val & PCM_ENABLE_OUTPUT) {
- if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
- return ret;
- if (s->status & DO_DUAL_DAC) {
- if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
- return ret;
- }
- start_dac(s);
- } else
- stop_dac(s);
- }
- return 0;
- case SNDCTL_DSP_GETOSPACE:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- if (!(s->enable & CM_ENABLE_CH1) && (val = prog_dmabuf(s, 0)) != 0)
- return val;
- spin_lock_irqsave(&s->lock, flags);
- cm_update_ptr(s);
- abinfo.fragsize = s->dma_dac.fragsize;
- abinfo.bytes = s->dma_dac.dmasize - s->dma_dac.count;
- abinfo.fragstotal = s->dma_dac.numfrag;
- abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift;
- spin_unlock_irqrestore(&s->lock, flags);
- return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
- case SNDCTL_DSP_GETISPACE:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- if (!(s->enable & CM_ENABLE_CH0) && (val = prog_dmabuf(s, 1)) != 0)
- return val;
- spin_lock_irqsave(&s->lock, flags);
- cm_update_ptr(s);
- abinfo.fragsize = s->dma_adc.fragsize;
- abinfo.bytes = s->dma_adc.count;
- abinfo.fragstotal = s->dma_adc.numfrag;
- abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
- spin_unlock_irqrestore(&s->lock, flags);
- return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_NONBLOCK:
- file->f_flags |= O_NONBLOCK;
- return 0;
- case SNDCTL_DSP_GETODELAY:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- spin_lock_irqsave(&s->lock, flags);
- cm_update_ptr(s);
- val = s->dma_dac.count;
- spin_unlock_irqrestore(&s->lock, flags);
- return put_user(val, (int *)arg);
- case SNDCTL_DSP_GETIPTR:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- spin_lock_irqsave(&s->lock, flags);
- cm_update_ptr(s);
- cinfo.bytes = s->dma_adc.total_bytes;
- cinfo.blocks = s->dma_adc.count >> s->dma_adc.fragshift;
- cinfo.ptr = s->dma_adc.hwptr;
- if (s->dma_adc.mapped)
- s->dma_adc.count &= s->dma_adc.fragsize-1;
- spin_unlock_irqrestore(&s->lock, flags);
- return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
- case SNDCTL_DSP_GETOPTR:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- spin_lock_irqsave(&s->lock, flags);
- cm_update_ptr(s);
- cinfo.bytes = s->dma_dac.total_bytes;
- cinfo.blocks = s->dma_dac.count >> s->dma_dac.fragshift;
- cinfo.ptr = s->dma_dac.hwptr;
- if (s->dma_dac.mapped)
- s->dma_dac.count &= s->dma_dac.fragsize-1;
- if (s->status & DO_DUAL_DAC) {
- if (s->dma_adc.mapped)
- s->dma_adc.count &= s->dma_adc.fragsize-1;
- }
- spin_unlock_irqrestore(&s->lock, flags);
- return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
- case SNDCTL_DSP_GETBLKSIZE:
- if (file->f_mode & FMODE_WRITE) {
- if ((val = prog_dmabuf(s, 0)))
- return val;
- if (s->status & DO_DUAL_DAC) {
- if ((val = prog_dmabuf(s, 1)))
- return val;
- return put_user(2 * s->dma_dac.fragsize, (int *)arg);
- }
- return put_user(s->dma_dac.fragsize, (int *)arg);
- }
- if ((val = prog_dmabuf(s, 1)))
- return val;
- return put_user(s->dma_adc.fragsize, (int *)arg);
- case SNDCTL_DSP_SETFRAGMENT:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (file->f_mode & FMODE_READ) {
- s->dma_adc.ossfragshift = val & 0xffff;
- s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
- if (s->dma_adc.ossfragshift < 4)
- s->dma_adc.ossfragshift = 4;
- if (s->dma_adc.ossfragshift > 15)
- s->dma_adc.ossfragshift = 15;
- if (s->dma_adc.ossmaxfrags < 4)
- s->dma_adc.ossmaxfrags = 4;
- }
- if (file->f_mode & FMODE_WRITE) {
- s->dma_dac.ossfragshift = val & 0xffff;
- s->dma_dac.ossmaxfrags = (val >> 16) & 0xffff;
- if (s->dma_dac.ossfragshift < 4)
- s->dma_dac.ossfragshift = 4;
- if (s->dma_dac.ossfragshift > 15)
- s->dma_dac.ossfragshift = 15;
- if (s->dma_dac.ossmaxfrags < 4)
- s->dma_dac.ossmaxfrags = 4;
- if (s->status & DO_DUAL_DAC) {
- s->dma_adc.ossfragshift = s->dma_dac.ossfragshift;
- s->dma_adc.ossmaxfrags = s->dma_dac.ossmaxfrags;
- }
- }
- return 0;
- case SNDCTL_DSP_SUBDIVIDE:
- if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
- (file->f_mode & FMODE_WRITE && s->dma_dac.subdivision))
- return -EINVAL;
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (val != 1 && val != 2 && val != 4)
- return -EINVAL;
- if (file->f_mode & FMODE_READ)
- s->dma_adc.subdivision = val;
- if (file->f_mode & FMODE_WRITE) {
- s->dma_dac.subdivision = val;
- if (s->status & DO_DUAL_DAC)
- s->dma_adc.subdivision = val;
- }
- return 0;
- case SOUND_PCM_READ_RATE:
- return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, (int *)arg);
- case SOUND_PCM_READ_CHANNELS:
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_STEREO << CM_CFMT_ADCSHIFT) : (CM_CFMT_STEREO << CM_CFMT_DACSHIFT))) ? 2 : 1, (int *)arg);
- case SOUND_PCM_READ_BITS:
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_16BIT << CM_CFMT_ADCSHIFT) : (CM_CFMT_16BIT << CM_CFMT_DACSHIFT))) ? 16 : 8, (int *)arg);
- case SOUND_PCM_READ_FILTER:
- return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, (int *)arg);
- case SNDCTL_DSP_GETCHANNELMASK:
- return put_user(DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE|DSP_BIND_SPDIF, (int *)arg);
-
- case SNDCTL_DSP_BIND_CHANNEL:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (val == DSP_BIND_QUERY) {
- val = DSP_BIND_FRONT;
- if (s->status & DO_SPDIF_OUT)
- val |= DSP_BIND_SPDIF;
- else {
- if (s->curr_channels == 4)
- val |= DSP_BIND_SURR;
- if (s->curr_channels > 4)
- val |= DSP_BIND_CENTER_LFE;
- }
- } else {
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val & DSP_BIND_SPDIF) {
- set_spdifout(s, s->ratedac);
- set_dac_channels(s, s->fmt & (CM_CFMT_STEREO << CM_CFMT_DACSHIFT) ? 2 : 1);
- if (!(s->status & DO_SPDIF_OUT))
- val &= ~DSP_BIND_SPDIF;
- } else {
- int channels;
- int mask;
- mask = val & (DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE);
- switch (mask) {
- case DSP_BIND_FRONT:
- channels = 2;
- break;
- case DSP_BIND_FRONT|DSP_BIND_SURR:
- channels = 4;
- break;
- case DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE:
- channels = 6;
- break;
- default:
- channels = s->fmt & (CM_CFMT_STEREO << CM_CFMT_DACSHIFT) ? 2 : 1;
- break;
- }
- set_dac_channels(s, channels);
- }
- }
- }
- return put_user(val, (int *)arg);
- case SOUND_PCM_WRITE_FILTER:
- case SNDCTL_DSP_MAPINBUF:
- case SNDCTL_DSP_MAPOUTBUF:
- case SNDCTL_DSP_SETSYNCRO:
- return -EINVAL;
-
- }
- return mixer_ioctl(s, cmd, arg);
- }
- static int cm_open(struct inode *inode, struct file *file)
- {
- int minor = MINOR(inode->i_rdev);
- struct cm_state *s = devs;
- unsigned char fmtm = ~0, fmts = 0;
- while (s && ((s->dev_audio ^ minor) & ~0xf))
- s = s->next;
- if (!s)
- return -ENODEV;
- VALIDATE_STATE(s);
- file->private_data = s;
- /* wait for device to become free */
- down(&s->open_sem);
- while (s->open_mode & file->f_mode) {
- if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
- return -EBUSY;
- }
- up(&s->open_sem);
- interruptible_sleep_on(&s->open_wait);
- if (signal_pending(current))
- return -ERESTARTSYS;
- down(&s->open_sem);
- }
- if (file->f_mode & FMODE_READ) {
- fmtm &= ~((CM_CFMT_STEREO | CM_CFMT_16BIT) << CM_CFMT_ADCSHIFT);
- if ((minor & 0xf) == SND_DEV_DSP16)
- fmts |= CM_CFMT_16BIT << CM_CFMT_ADCSHIFT;
- s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
- set_adc_rate(s, 8000);
- }
- if (file->f_mode & FMODE_WRITE) {
- fmtm &= ~((CM_CFMT_STEREO | CM_CFMT_16BIT) << CM_CFMT_DACSHIFT);
- if ((minor & 0xf) == SND_DEV_DSP16)
- fmts |= CM_CFMT_16BIT << CM_CFMT_DACSHIFT;
- s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = s->dma_dac.subdivision = 0;
- set_dac_rate(s, 8000);
- // clear previous multichannel, spdif, ac3 state
- set_spdifout(s, 0);
- if (s->deviceid == PCI_DEVICE_ID_CMEDIA_CM8738) {
- set_ac3(s, 0);
- set_dac_channels(s, 1);
- }
- }
- set_fmt(s, fmtm, fmts);
- s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&s->open_sem);
- return 0;
- }
- static int cm_release(struct inode *inode, struct file *file)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
- VALIDATE_STATE(s);
- lock_kernel();
- if (file->f_mode & FMODE_WRITE)
- drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- dealloc_dmabuf(&s->dma_dac);
- if (s->status & DO_DUAL_DAC)
- dealloc_dmabuf(&s->dma_adc);
- if (s->status & DO_MULTI_CH)
- set_dac_channels(s, 0);
- if (s->status & DO_AC3)
- set_ac3(s, 0);
- if (s->status & DO_SPDIF_OUT)
- set_spdifout(s, 0);
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- dealloc_dmabuf(&s->dma_adc);
- }
- s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
- up(&s->open_sem);
- wake_up(&s->open_wait);
- unlock_kernel();
- return 0;
- }
- static /*const*/ struct file_operations cm_audio_fops = {
- owner: THIS_MODULE,
- llseek: no_llseek,
- read: cm_read,
- write: cm_write,
- poll: cm_poll,
- ioctl: cm_ioctl,
- mmap: cm_mmap,
- open: cm_open,
- release: cm_release,
- };
- #ifdef CONFIG_SOUND_CMPCI_MIDI
- /* --------------------------------------------------------------------- */
- static ssize_t cm_midi_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
- DECLARE_WAITQUEUE(wait, current);
- ssize_t ret;
- unsigned long flags;
- unsigned ptr;
- int cnt;
- VALIDATE_STATE(s);
- if (ppos != &file->f_pos)
- return -ESPIPE;
- if (!access_ok(VERIFY_WRITE, buffer, count))
- return -EFAULT;
- ret = 0;
- add_wait_queue(&s->midi.iwait, &wait);
- while (count > 0) {
- spin_lock_irqsave(&s->lock, flags);
- ptr = s->midi.ird;
- cnt = MIDIINBUF - ptr;
- if (s->midi.icnt < cnt)
- cnt = s->midi.icnt;
- spin_unlock_irqrestore(&s->lock, flags);
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- if (file->f_flags & O_NONBLOCK)
- {
- if (!ret)
- ret = -EAGAIN;
- break;
- }
- __set_current_state(TASK_INTERRUPTIBLE);
- schedule();
- if (signal_pending(current))
- {
- if (!ret)
- ret = -ERESTARTSYS;
- break;
- }
- continue;
- }
- if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt))
- {
- if (!ret)
- ret = -EFAULT;
- break;
- }
- ptr = (ptr + cnt) % MIDIINBUF;
- spin_lock_irqsave(&s->lock, flags);
- s->midi.ird = ptr;
- s->midi.icnt -= cnt;
- spin_unlock_irqrestore(&s->lock, flags);
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- break;
- }
- __set_current_state(TASK_RUNNING);
- remove_wait_queue(&s->midi.iwait, &wait);
- return ret;
- }
- static ssize_t cm_midi_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
- DECLARE_WAITQUEUE(wait, current);
- ssize_t ret;
- unsigned long flags;
- unsigned ptr;
- int cnt;
- VALIDATE_STATE(s);
- if (ppos != &file->f_pos)
- return -ESPIPE;
- if (!access_ok(VERIFY_READ, buffer, count))
- return -EFAULT;
- if (count == 0)
- return 0;
- ret = 0;
- add_wait_queue(&s->midi.owait, &wait);
- while (count > 0) {
- spin_lock_irqsave(&s->lock, flags);
- ptr = s->midi.owr;
- cnt = MIDIOUTBUF - ptr;
- if (s->midi.ocnt + cnt > MIDIOUTBUF)
- cnt = MIDIOUTBUF - s->midi.ocnt;
- if (cnt <= 0)
- cm_handle_midi(s);
- spin_unlock_irqrestore(&s->lock, flags);
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- if (file->f_flags & O_NONBLOCK)
- {
- if (!ret)
- ret = -EAGAIN;
- break;
- }
- __set_current_state(TASK_INTERRUPTIBLE);
- schedule();
- if (signal_pending(current)) {
- if (!ret)
- ret = -ERESTARTSYS;
- break;
- }
- continue;
- }
- if (copy_from_user(s->midi.obuf + ptr, buffer, cnt))
- {
- if (!ret)
- ret = -EFAULT;
- break;
- }
- ptr = (ptr + cnt) % MIDIOUTBUF;
- spin_lock_irqsave(&s->lock, flags);
- s->midi.owr = ptr;
- s->midi.ocnt += cnt;
- spin_unlock_irqrestore(&s->lock, flags);
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- spin_lock_irqsave(&s->lock, flags);
- cm_handle_midi(s);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- __set_current_state(TASK_RUNNING);
- remove_wait_queue(&s->midi.owait, &wait);
- return ret;
- }
- static unsigned int cm_midi_poll(struct file *file, struct poll_table_struct *wait)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
- unsigned long flags;
- unsigned int mask = 0;
- VALIDATE_STATE(s);
- if (file->f_mode & FMODE_WRITE)
- poll_wait(file, &s->midi.owait, wait);
- if (file->f_mode & FMODE_READ)
- poll_wait(file, &s->midi.iwait, wait);
- spin_lock_irqsave(&s->lock, flags);
- if (file->f_mode & FMODE_READ) {
- if (s->midi.icnt > 0)
- mask |= POLLIN | POLLRDNORM;
- }
- if (file->f_mode & FMODE_WRITE) {
- if (s->midi.ocnt < MIDIOUTBUF)
- mask |= POLLOUT | POLLWRNORM;
- }
- spin_unlock_irqrestore(&s->lock, flags);
- return mask;
- }
- static int cm_midi_open(struct inode *inode, struct file *file)
- {
- int minor = MINOR(inode->i_rdev);
- struct cm_state *s = devs;
- unsigned long flags;
- while (s && s->dev_midi != minor)
- s = s->next;
- if (!s)
- return -ENODEV;
- VALIDATE_STATE(s);
- file->private_data = s;
- /* wait for device to become free */
- down(&s->open_sem);
- while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
- if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
- return -EBUSY;
- }
- up(&s->open_sem);
- interruptible_sleep_on(&s->open_wait);
- if (signal_pending(current))
- return -ERESTARTSYS;
- down(&s->open_sem);
- }
- spin_lock_irqsave(&s->lock, flags);
- if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
- s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
- s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
- /* enable MPU-401 */
- maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0, 4);
- outb(0xff, s->iomidi+1); /* reset command */
- if (!(inb(s->iomidi+1) & 0x80))
- inb(s->iomidi);
- outb(0x3f, s->iomidi+1); /* uart command */
- if (!(inb(s->iomidi+1) & 0x80))
- inb(s->iomidi);
- s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
- init_timer(&s->midi.timer);
- s->midi.timer.expires = jiffies+1;
- s->midi.timer.data = (unsigned long)s;
- s->midi.timer.function = cm_midi_timer;
- add_timer(&s->midi.timer);
- }
- if (file->f_mode & FMODE_READ) {
- s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
- }
- if (file->f_mode & FMODE_WRITE) {
- s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
- }
- spin_unlock_irqrestore(&s->lock, flags);
- s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
- up(&s->open_sem);
- MOD_INC_USE_COUNT;
- return 0;
- }
- static int cm_midi_release(struct inode *inode, struct file *file)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
- DECLARE_WAITQUEUE(wait, current);
- unsigned long flags;
- unsigned count, tmo;
- VALIDATE_STATE(s);
- lock_kernel();
- if (file->f_mode & FMODE_WRITE) {
- __set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&s->midi.owait, &wait);
- for (;;) {
- spin_lock_irqsave(&s->lock, flags);
- count = s->midi.ocnt;
- spin_unlock_irqrestore(&s->lock, flags);
- if (count <= 0)
- break;
- if (signal_pending(current))
- break;
- if (file->f_flags & O_NONBLOCK) {
- remove_wait_queue(&s->midi.owait, &wait);
- set_current_state(TASK_RUNNING);
- unlock_kernel();
- return -EBUSY;
- }
- tmo = (count * HZ) / 3100;
- if (!schedule_timeout(tmo ? : 1) && tmo)
- printk(KERN_DEBUG "cmpci: midi timed out??n");
- }
- remove_wait_queue(&s->midi.owait, &wait);
- set_current_state(TASK_RUNNING);
- }
- down(&s->open_sem);
- s->open_mode &= (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE);
- spin_lock_irqsave(&s->lock, flags);
- if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
- del_timer(&s->midi.timer);
- outb(0xff, s->iomidi+1); /* reset command */
- if (!(inb(s->iomidi+1) & 0x80))
- inb(s->iomidi);
- /* disable MPU-401 */
- maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~4, 0);
- }
- spin_unlock_irqrestore(&s->lock, flags);
- up(&s->open_sem);
- wake_up(&s->open_wait);
- unlock_kernel();
- return 0;
- }
- static /*const*/ struct file_operations cm_midi_fops = {
- owner: THIS_MODULE,
- llseek: no_llseek,
- read: cm_midi_read,
- write: cm_midi_write,
- poll: cm_midi_poll,
- open: cm_midi_open,
- release: cm_midi_release,
- };
- #endif
- /* --------------------------------------------------------------------- */
- #ifdef CONFIG_SOUND_CMPCI_FM
- static int cm_dmfm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
- {
- static const unsigned char op_offset[18] = {
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05,
- 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
- 0x10, 0x11, 0x12, 0x13, 0x14, 0x15
- };
- struct cm_state *s = (struct cm_state *)file->private_data;
- struct dm_fm_voice v;
- struct dm_fm_note n;
- struct dm_fm_params p;
- unsigned int io;
- unsigned int regb;
- switch (cmd) {
- case FM_IOCTL_RESET:
- for (regb = 0xb0; regb < 0xb9; regb++) {
- outb(regb, s->iosynth);
- outb(0, s->iosynth+1);
- outb(regb, s->iosynth+2);
- outb(0, s->iosynth+3);
- }
- return 0;
- case FM_IOCTL_PLAY_NOTE:
- if (copy_from_user(&n, (void *)arg, sizeof(n)))
- return -EFAULT;
- if (n.voice >= 18)
- return -EINVAL;
- if (n.voice >= 9) {
- regb = n.voice - 9;
- io = s->iosynth+2;
- } else {
- regb = n.voice;
- io = s->iosynth;
- }
- outb(0xa0 + regb, io);
- outb(n.fnum & 0xff, io+1);
- outb(0xb0 + regb, io);
- outb(((n.fnum >> 8) & 3) | ((n.octave & 7) << 2) | ((n.key_on & 1) << 5), io+1);
- return 0;
- case FM_IOCTL_SET_VOICE:
- if (copy_from_user(&v, (void *)arg, sizeof(v)))
- return -EFAULT;
- if (v.voice >= 18)
- return -EINVAL;
- regb = op_offset[v.voice];
- io = s->iosynth + ((v.op & 1) << 1);
- outb(0x20 + regb, io);
- outb(((v.am & 1) << 7) | ((v.vibrato & 1) << 6) | ((v.do_sustain & 1) << 5) |
- ((v.kbd_scale & 1) << 4) | (v.harmonic & 0xf), io+1);
- outb(0x40 + regb, io);
- outb(((v.scale_level & 0x3) << 6) | (v.volume & 0x3f), io+1);
- outb(0x60 + regb, io);
- outb(((v.attack & 0xf) << 4) | (v.decay & 0xf), io+1);
- outb(0x80 + regb, io);
- outb(((v.sustain & 0xf) << 4) | (v.release & 0xf), io+1);
- outb(0xe0 + regb, io);
- outb(v.waveform & 0x7, io+1);
- if (n.voice >= 9) {
- regb = n.voice - 9;
- io = s->iosynth+2;
- } else {
- regb = n.voice;
- io = s->iosynth;
- }
- outb(0xc0 + regb, io);
- outb(((v.right & 1) << 5) | ((v.left & 1) << 4) | ((v.feedback & 7) << 1) |
- (v.connection & 1), io+1);
- return 0;
-
- case FM_IOCTL_SET_PARAMS:
- if (copy_from_user(&p, (void *)arg, sizeof(p)))
- return -EFAULT;
- outb(0x08, s->iosynth);
- outb((p.kbd_split & 1) << 6, s->iosynth+1);
- outb(0xbd, s->iosynth);
- outb(((p.am_depth & 1) << 7) | ((p.vib_depth & 1) << 6) | ((p.rhythm & 1) << 5) | ((p.bass & 1) << 4) |
- ((p.snare & 1) << 3) | ((p.tomtom & 1) << 2) | ((p.cymbal & 1) << 1) | (p.hihat & 1), s->iosynth+1);
- return 0;
- case FM_IOCTL_SET_OPL:
- outb(4, s->iosynth+2);
- outb(arg, s->iosynth+3);
- return 0;
- case FM_IOCTL_SET_MODE:
- outb(5, s->iosynth+2);
- outb(arg & 1, s->iosynth+3);
- return 0;
- }
- return -EINVAL;
- }
- static int cm_dmfm_open(struct inode *inode, struct file *file)
- {
- int minor = MINOR(inode->i_rdev);
- struct cm_state *s = devs;
- while (s && s->dev_dmfm != minor)
- s = s->next;
- if (!s)
- return -ENODEV;
- VALIDATE_STATE(s);
- file->private_data = s;
- /* wait for device to become free */
- down(&s->open_sem);
- while (s->open_mode & FMODE_DMFM) {
- if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
- return -EBUSY;
- }
- up(&s->open_sem);
- interruptible_sleep_on(&s->open_wait);
- if (signal_pending(current))
- return -ERESTARTSYS;
- down(&s->open_sem);
- }
- /* init the stuff */
- outb(1, s->iosynth);
- outb(0x20, s->iosynth+1); /* enable waveforms */
- outb(4, s->iosynth+2);
- outb(0, s->iosynth+3); /* no 4op enabled */
- outb(5, s->iosynth+2);
- outb(1, s->iosynth+3); /* enable OPL3 */
- s->open_mode |= FMODE_DMFM;
- up(&s->open_sem);
- MOD_INC_USE_COUNT;
- return 0;
- }
- static int cm_dmfm_release(struct inode *inode, struct file *file)
- {
- struct cm_state *s = (struct cm_state *)file->private_data;
- unsigned int regb;
- VALIDATE_STATE(s);
- lock_kernel();
- down(&s->open_sem);
- s->open_mode &= ~FMODE_DMFM;
- for (regb = 0xb0; regb < 0xb9; regb++) {
- outb(regb, s->iosynth);
- outb(0, s->iosynth+1);
- outb(regb, s->iosynth+2);
- outb(0, s->iosynth+3);
- }
- up(&s->open_sem);
- wake_up(&s->open_wait);
- unlock_kernel();
- return 0;
- }
- static /*const*/ struct file_operations cm_dmfm_fops = {
- owner: THIS_MODULE,
- llseek: no_llseek,
- ioctl: cm_dmfm_ioctl,
- open: cm_dmfm_open,
- release: cm_dmfm_release,
- };
- #endif /* CONFIG_SOUND_CMPCI_FM */
- static struct initvol {
- int mixch;
- int vol;
- } initvol[] __initdata = {
- { SOUND_MIXER_WRITE_CD, 0x4f4f },
- { SOUND_MIXER_WRITE_LINE, 0x4f4f },
- { SOUND_MIXER_WRITE_MIC, 0x4f4f },
- { SOUND_MIXER_WRITE_SYNTH, 0x4f4f },
- { SOUND_MIXER_WRITE_VOLUME, 0x4f4f },
- { SOUND_MIXER_WRITE_PCM, 0x4f4f }
- };
- /* check chip version and capability */
- static int query_chip(struct cm_state *s)
- {
- int ChipVersion = -1;
- unsigned char RegValue;
- // check reg 0Ch, bit 24-31
- RegValue = inb(s->iobase + CODEC_CMI_INT_HLDCLR + 3);
- if (RegValue == 0) {
- // check reg 08h, bit 24-28
- RegValue = inb(s->iobase + CODEC_CMI_CHFORMAT + 3);
- RegValue &= 0x1f;
- if (RegValue == 0) {
- ChipVersion = 33;
- s->max_channels = 4;
- s->capability |= CAN_AC3_SW;
- s->capability |= CAN_DUAL_DAC;
- } else {
- ChipVersion = 37;
- s->max_channels = 4;
- s->capability |= CAN_AC3_HW;
- s->capability |= CAN_DUAL_DAC;
- }
- } else {
- // check reg 0Ch, bit 26
- if (RegValue & (1 << (26-24))) {
- ChipVersion = 39;
- if (RegValue & (1 << (24-24)))
- s->max_channels = 6;
- else
- s->max_channels = 4;
- s->capability |= CAN_AC3_HW;
- s->capability |= CAN_DUAL_DAC;
- s->capability |= CAN_MULTI_CH_HW;
- } else {
- ChipVersion = 55; // 4 or 6 channels
- s->max_channels = 6;
- s->capability |= CAN_AC3_HW;
- s->capability |= CAN_DUAL_DAC;
- s->capability |= CAN_MULTI_CH_HW;
- }
- }
- // still limited to number of speakers
- if (s->max_channels > s->speakers)
- s->max_channels = s->speakers;
- return ChipVersion;
- }
- #ifdef CONFIG_SOUND_CMPCI_MIDI
- static int mpuio = CONFIG_SOUND_CMPCI_MPUIO;
- #else
- static int mpuio;
- #endif
- #ifdef CONFIG_SOUND_CMPCI_FM
- static int fmio = CONFIG_SOUND_CMPCI_FMIO;
- #else
- static int fmio;
- #endif
- #ifdef CONFIG_SOUND_CMPCI_SPDIFINVERSE
- static int spdif_inverse = 1;
- #else
- static int spdif_inverse;
- #endif
- #ifdef CONFIG_SOUND_CMPCI_SPDIFLOOP
- static int spdif_loop = 1;
- #else
- static int spdif_loop;
- #endif
- #ifdef CONFIG_SOUND_CMPCI_SPEAKERS
- static int speakers = CONFIG_SOUND_CMPCI_SPEAKERS;
- #else
- static int speakers = 2;
- #endif
- #ifdef CONFIG_SOUND_CMPCI_LINE_REAR
- static int use_line_as_rear = 1;
- #else
- static int use_line_as_rear;
- #endif
- #ifdef CONFIG_SOUND_CMPCI_LINE_BASS
- static int use_line_as_bass = 1;
- #else
- static int use_line_as_bass;
- #endif
- #ifdef CONFIG_SOUND_CMPCI_JOYSTICK
- static int joystick = 1;
- #else
- static int joystick;
- #endif
- MODULE_PARM(mpuio, "i");
- MODULE_PARM(fmio, "i");
- MODULE_PARM(spdif_inverse, "i");
- MODULE_PARM(spdif_loop, "i");
- MODULE_PARM(speakers, "i");
- MODULE_PARM(use_line_as_rear, "i");
- MODULE_PARM(use_line_as_bass, "i");
- MODULE_PARM(joystick, "i");
- MODULE_PARM_DESC(mpuio, "(0x330, 0x320, 0x310, 0x300) Base of MPU-401, 0 to disable");
- MODULE_PARM_DESC(fmio, "(0x388, 0x3C8, 0x3E0) Base of OPL3, 0 to disable");
- MODULE_PARM_DESC(spdif_inverse, "(1/0) Invert S/PDIF-in signal");
- MODULE_PARM_DESC(spdif_loop, "(1/0) Route S/PDIF-in to S/PDIF-out directly");
- MODULE_PARM_DESC(speakers, "(2-6) Number of speakers you connect");
- MODULE_PARM_DESC(use_line_as_rear, "(1/0) Use line-in jack as rear-out");
- MODULE_PARM_DESC(use_line_as_bass, "(1/0) Use line-in jack as bass/center");
- MODULE_PARM_DESC(joystick, "(1/0) Enable joystick interface, still need joystick driver");
- static struct pci_device_id cmpci_pci_tbl[] = {
- { PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
- { PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338A,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
- { PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338B,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
- { 0 }
- };
- MODULE_DEVICE_TABLE(pci, cmpci_pci_tbl);
- void initialize_chip(struct pci_dev *pcidev)
- {
- struct cm_state *s;
- mm_segment_t fs;
- int i, val;
- unsigned char reg_mask = 0;
- struct {
- unsigned short deviceid;
- char *devicename;
- } devicetable[] =
- {
- { PCI_DEVICE_ID_CMEDIA_CM8338A, "CM8338A" },
- { PCI_DEVICE_ID_CMEDIA_CM8338B, "CM8338B" },
- { PCI_DEVICE_ID_CMEDIA_CM8738, "CM8738" },
- { PCI_DEVICE_ID_CMEDIA_CM8738B, "CM8738B" },
- };
- char *devicename = "unknown";
- {
- if (pci_enable_device(pcidev))
- return;
- if (pcidev->irq == 0)
- return;
- s = kmalloc(sizeof(*s), GFP_KERNEL);
- if (!s) {
- printk(KERN_WARNING "cmpci: out of memoryn");
- return;
- }
- /* search device name */
- for (i = 0; i < sizeof(devicetable) / sizeof(devicetable[0]); i++) {
- if (devicetable[i].deviceid == pcidev->device)
- {
- devicename = devicetable[i].devicename;
- break;
- }
- }
- memset(s, 0, sizeof(struct cm_state));
- init_waitqueue_head(&s->dma_adc.wait);
- init_waitqueue_head(&s->dma_dac.wait);
- init_waitqueue_head(&s->open_wait);
- init_waitqueue_head(&s->midi.iwait);
- init_waitqueue_head(&s->midi.owait);
- init_MUTEX(&s->open_sem);
- spin_lock_init(&s->lock);
- s->magic = CM_MAGIC;
- s->iobase = pci_resource_start(pcidev, 0);
- s->iosynth = fmio;
- s->iomidi = mpuio;
- s->status = 0;
- /* range check */
- if (speakers < 2)
- speakers = 2;
- else if (speakers > 6)
- speakers = 6;
- s->speakers = speakers;
- if (s->iobase == 0)
- return;
- s->irq = pcidev->irq;
- if (!request_region(s->iobase, CM_EXTENT_CODEC, "cmpci")) {
- printk(KERN_ERR "cmpci: io ports %#x-%#x in usen", s->iobase, s->iobase+CM_EXTENT_CODEC-1);
- goto err_region5;
- }
- #ifdef CONFIG_SOUND_CMPCI_MIDI
- /* disable MPU-401 */
- maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0x04, 0);
- if (s->iomidi) {
- if (!request_region(s->iomidi, CM_EXTENT_MIDI, "cmpci Midi")) {
- printk(KERN_ERR "cmpci: io ports %#x-%#x in usen", s->iomidi, s->iomidi+CM_EXTENT_MIDI-1);
- s->iomidi = 0;
- } else {
- /* set IO based at 0x330 */
- switch (s->iomidi) {
- case 0x330:
- reg_mask = 0;
- break;
- case 0x320:
- reg_mask = 0x20;
- break;
- case 0x310:
- reg_mask = 0x40;
- break;
- case 0x300:
- reg_mask = 0x60;
- break;
- default:
- s->iomidi = 0;
- break;
- }
- outb((inb(s->iobase + CODEC_CMI_LEGACY_CTRL + 3) & ~0x60) | reg_mask, s->iobase + CODEC_CMI_LEGACY_CTRL + 3);
- /* enable MPU-401 */
- if (s->iomidi) {
- maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0, 0x04);
- }
- }
- }
- #endif
- #ifdef CONFIG_SOUND_CMPCI_FM
- /* disable FM */
- maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~8, 0);
- if (s->iosynth) {
- if (!request_region(s->iosynth, CM_EXTENT_SYNTH, "cmpci FM")) {
- printk(KERN_ERR "cmpci: io ports %#x-%#x in usen", s->iosynth, s->iosynth+CM_EXTENT_SYNTH-1);
- s->iosynth = 0;
- } else {
- /* set IO based at 0x388 */
- switch (s->iosynth) {
- case 0x388:
- reg_mask = 0;
- break;
- case 0x3C8:
- reg_mask = 0x01;
- break;
- case 0x3E0:
- reg_mask = 0x02;
- break;
- case 0x3E8:
- reg_mask = 0x03;
- break;
- default:
- s->iosynth = 0;
- break;
- }
- maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 3, ~0x03, reg_mask);
- /* enable FM */
- if (s->iosynth) {
- maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0, 8);
- }
- }
- }
- #endif
- /* enable joystick */
- if (joystick)
- maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0, 0x02);
- else
- maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0x02, 0);
- /* initialize codec registers */
- outb(0, s->iobase + CODEC_CMI_INT_HLDCLR + 2); /* disable ints */
- outb(0, s->iobase + CODEC_CMI_FUNCTRL0 + 2); /* disable channels */
- /* reset mixer */
- wrmixer(s, DSP_MIX_DATARESETIDX, 0);
- /* request irq */
- if (request_irq(s->irq, cm_interrupt, SA_SHIRQ, "cmpci", s)) {
- printk(KERN_ERR "cmpci: irq %u in usen", s->irq);
- goto err_irq;
- }
- printk(KERN_INFO "cmpci: found %s adapter at io %#06x irq %un",
- devicename, s->iobase, s->irq);
- /* register devices */
- if ((s->dev_audio = register_sound_dsp(&cm_audio_fops, -1)) < 0)
- goto err_dev1;
- if ((s->dev_mixer = register_sound_mixer(&cm_mixer_fops, -1)) < 0)
- goto err_dev2;
- #ifdef CONFIG_SOUND_CMPCI_MIDI
- if ((s->dev_midi = register_sound_midi(&cm_midi_fops, -1)) < 0)
- goto err_dev3;
- #endif
- #ifdef CONFIG_SOUND_CMPCI_FM
- if ((s->dev_dmfm = register_sound_special(&cm_dmfm_fops, 15 /* ?? */)) < 0)
- goto err_dev4;
- #endif
- pci_set_master(pcidev); /* enable bus mastering */
- /* initialize the chips */
- fs = get_fs();
- set_fs(KERNEL_DS);
- /* set mixer output */
- frobindir(s, DSP_MIX_OUTMIXIDX, 0x1f, 0x1f);
- /* set mixer input */
- val = SOUND_MASK_LINE|SOUND_MASK_SYNTH|SOUND_MASK_CD|SOUND_MASK_MIC;
- mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
- for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
- val = initvol[i].vol;
- mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
- }
- /* use channel 0 for record, channel 1 for play */
- maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~2, 1);
- s->deviceid = pcidev->device;
- if (pcidev->device == PCI_DEVICE_ID_CMEDIA_CM8738) {
- /* chip version and hw capability check */
- s->chip_version = query_chip(s);
- printk(KERN_INFO "cmpci: chip version = 0%dn", s->chip_version);
- /* seet SPDIF-in inverse before enable SPDIF loop */
- if (spdif_inverse) {
- /* turn on spdif-in inverse */
- maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0, 1);
- printk(KERN_INFO "cmpci: Inverse SPDIF-inn");
- } else {
- /* turn off spdif-ininverse */
- maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~1, 0);
- }
- /* enable SPDIF loop */
- if (spdif_loop) {
- s->status |= DO_SPDIF_LOOP;
- /* turn on spdif-in to spdif-out */
- maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0, 0x80);
- printk(KERN_INFO "cmpci: Enable SPDIF loopn");
- } else {
- s->status &= ~DO_SPDIF_LOOP;
- /* turn off spdif-in to spdif-out */
- maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0x80, 0);
- }
- if (use_line_as_rear) {
- s->capability |= CAN_LINE_AS_REAR;
- s->status |= DO_LINE_AS_REAR;
- maskb(s->iobase + CODEC_CMI_MIXER1, ~0, 0x20);
- } else
- maskb(s->iobase + CODEC_CMI_MIXER1, ~0x20, 0);
- if (s->chip_version >= 39) {
- if (use_line_as_bass) {
- s->capability |= CAN_LINE_AS_BASS;
- s->status |= DO_LINE_AS_BASS;
- maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~0, 0x60);
- } else
- maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~0x60, 0);
- }
- } else {
- /* 8338 will fall here */
- s->max_channels = 2;
- }
- /* queue it for later freeing */
- s->next = devs;
- devs = s;
- return;
- #ifdef CONFIG_SOUND_CMPCI_FM
- unregister_sound_special(s->dev_dmfm);
- err_dev4:
- #endif
- #ifdef CONFIG_SOUND_CMPCI_MIDI
- unregister_sound_midi(s->dev_midi);
- err_dev3:
- #endif
- unregister_sound_mixer(s->dev_mixer);
- err_dev2:
- unregister_sound_dsp(s->dev_audio);
- err_dev1:
- printk(KERN_ERR "cmpci: cannot register misc devicen");
- free_irq(s->irq, s);
- err_irq:
- #ifdef CONFIG_SOUND_CMPCI_FM
- if (s->iosynth) release_region(s->iosynth, CM_EXTENT_SYNTH);
- #endif
- #ifdef CONFIG_SOUND_CMPCI_MIDI
- if (s->iomidi) release_region(s->iomidi, CM_EXTENT_MIDI);
- #endif
- release_region(s->iobase, CM_EXTENT_CODEC);
- err_region5:
- kfree(s);
- }
- if (!devs) {
- if (wavetable_mem)
- free_pages(wavetable_mem, 20-PAGE_SHIFT);
- return;
- }
- return;
- }
- static int __init init_cmpci(void)
- {
- struct pci_dev *pcidev = NULL;
- int index = 0;
- #ifdef CONFIG_PCI
- if (!pci_present()) /* No PCI bus in this machine! */
- #endif
- return -ENODEV;
- printk(KERN_INFO "cmpci: version $Revision: 5.64 $ time " __TIME__ " " __DATE__ "n");
- while (index < NR_DEVICE && (
- (pcidev = pci_find_device(PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738, pcidev)))) {
- initialize_chip(pcidev);
- index++;
- }
- while (index < NR_DEVICE && (
- (pcidev = pci_find_device(PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338A, pcidev)))) {
- initialize_chip(pcidev);
- index++;
- }
- while (index < NR_DEVICE && (
- (pcidev = pci_find_device(PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338B, pcidev)))) {
- initialize_chip(pcidev);
- index++;
- }
- return 0;
- }
- /* --------------------------------------------------------------------- */
- MODULE_AUTHOR("ChenLi Tien, cltien@cmedia.com.tw");
- MODULE_DESCRIPTION("CM8x38 Audio Driver");
- MODULE_LICENSE("GPL");
- static void __exit cleanup_cmpci(void)
- {
- struct cm_state *s;
- while ((s = devs)) {
- devs = devs->next;
- outb(0, s->iobase + CODEC_CMI_INT_HLDCLR + 2); /* disable ints */
- synchronize_irq();
- outb(0, s->iobase + CODEC_CMI_FUNCTRL0 + 2); /* disable channels */
- free_irq(s->irq, s);
- /* reset mixer */
- wrmixer(s, DSP_MIX_DATARESETIDX, 0);
- release_region(s->iobase, CM_EXTENT_CODEC);
- #ifdef CONFIG_SOUND_CMPCI_MIDI
- if (s->iomidi) release_region(s->iomidi, CM_EXTENT_MIDI);
- #endif
- #ifdef CONFIG_SOUND_CMPCI_FM
- if (s->iosynth) release_region(s->iosynth, CM_EXTENT_SYNTH);
- #endif
- unregister_sound_dsp(s->dev_audio);
- unregister_sound_mixer(s->dev_mixer);
- #ifdef CONFIG_SOUND_CMPCI_MIDI
- unregister_sound_midi(s->dev_midi);
- #endif
- #ifdef CONFIG_SOUND_CMPCI_FM
- unregister_sound_special(s->dev_dmfm);
- #endif
- kfree(s);
- }
- if (wavetable_mem)
- free_pages(wavetable_mem, 20-PAGE_SHIFT);
- printk(KERN_INFO "cmpci: unloadingn");
- }
- module_init(init_cmpci);
- module_exit(cleanup_cmpci);