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Diffstat (limited to 'sound/oss/cmpci.c')
| -rw-r--r-- | sound/oss/cmpci.c | 3378 |
1 files changed, 3378 insertions, 0 deletions
diff --git a/sound/oss/cmpci.c b/sound/oss/cmpci.c new file mode 100644 index 00000000000..34720e66dae --- /dev/null +++ b/sound/oss/cmpci.c @@ -0,0 +1,3378 @@ +/* + * cmpci.c -- C-Media PCI audio driver. + * + * Copyright (C) 1999 C-media support (support@cmedia.com.tw) + * + * Based on the PCI drivers by Thomas Sailer (sailer@ife.ee.ethz.ch) + * + * For update, visit: + * 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 + * + * 03/01/2003 - open_mode fixes from Georg Acher <acher@in.tum.de> + * Simon Braunschmidt <brasimon@web.de> + * Sat Jan 31 2004 + * - provide support for opl3 FM by releasing IO range after initialization + * + * ChenLi Tien <cltien@cmedia.com.tw> + * Mar 9 2004 + * - Fix S/PDIF out if spdif_loop enabled + * - Load opl3 driver if enabled (fmio in proper range) + * - Load mpu401 if enabled (mpuio in proper range) + * Apr 5 2004 + * - Fix DUAL_DAC dma synchronization bug + * - Check exist FM/MPU401 I/O before activate. + * - Add AFTM_S16_BE format support, so MPlayer/Xine can play AC3/mutlichannel + * on Mac + * - Change to support kernel 2.6 so only small patch needed + * - All parameters default to 0 + * - Add spdif_out to send PCM through S/PDIF out jack + * - Add hw_copy to get 4-spaker output for general PCM/analog output + * + * Stefan Thater <stefan.thaeter@gmx.de> + * Apr 5 2004 + * - Fix mute single channel for CD/Line-in/AUX-in + */ +/*****************************************************************************/ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/interrupt.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/init.h> +#include <linux/poll.h> +#include <linux/spinlock.h> +#include <linux/smp_lock.h> +#include <linux/bitops.h> +#include <linux/wait.h> + +#include <asm/io.h> +#include <asm/page.h> +#include <asm/uaccess.h> + +#ifdef CONFIG_SOUND_CMPCI_MIDI +#include "sound_config.h" +#include "mpu401.h" +#endif +#ifdef CONFIG_SOUND_CMPCI_FM +#include "opl3.h" +#endif +#ifdef CONFIG_SOUND_CMPCI_JOYSTICK +#include <linux/gameport.h> +#endif + +/* --------------------------------------------------------------------- */ +#undef OSS_DOCUMENTED_MIXER_SEMANTICS +#undef DMABYTEIO +#define DBG(x) {} +/* --------------------------------------------------------------------- */ + +#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_SPDIF_CTRL (0x90) +#define CODEC_CMI_MISC_CTRL2 (0x92) + +#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 DSP_MIX_EXTENSION ((unsigned char)(0xf0)) +// pseudo register for AUX +#define DSP_MIX_AUXVOL_L ((unsigned char)(0x50)) +#define DSP_MIX_AUXVOL_R ((unsigned char)(0x51)) + +// I/O length +#define CM_EXTENT_CODEC 0x100 +#define CM_EXTENT_MIDI 0x2 +#define CM_EXTENT_SYNTH 0x4 +#define CM_EXTENT_GAME 0x8 + +// Function Control Register 0 (00h) +#define CHADC0 0x01 +#define CHADC1 0x02 +#define PAUSE0 0x04 +#define PAUSE1 0x08 + +// Function Control Register 0+2 (02h) +#define CHEN0 0x01 +#define CHEN1 0x02 +#define RST_CH0 0x04 +#define RST_CH1 0x08 + +// Function Control Register 1 (04h) +#define JYSTK_EN 0x02 +#define UART_EN 0x04 +#define SPDO2DAC 0x40 +#define SPDFLOOP 0x80 + +// Function Control Register 1+1 (05h) +#define SPDF_0 0x01 +#define SPDF_1 0x02 +#define ASFC 0x1c +#define DSFC 0xe0 +#define SPDIF2DAC (SPDF_1 << 8 | SPDO2DAC) + +// Channel Format Register (08h) +#define CM_CFMT_STEREO 0x01 +#define CM_CFMT_16BIT 0x02 +#define CM_CFMT_MASK 0x03 +#define POLVALID 0x20 +#define INVSPDIFI 0x80 + +// Channel Format Register+2 (0ah) +#define SPD24SEL 0x20 + +// Channel Format Register+3 (0bh) +#define CHB3D 0x20 +#define CHB3D5C 0x80 + +// Interrupt Hold/Clear Register+2 (0eh) +#define CH0_INT_EN 0x01 +#define CH1_INT_EN 0x02 + +// Interrupt Register (10h) +#define CHINT0 0x01 +#define CHINT1 0x02 +#define CH0BUSY 0x04 +#define CH1BUSY 0x08 + +// Legacy Control/Status Register+1 (15h) +#define EXBASEN 0x10 +#define BASE2LIN 0x20 +#define CENTR2LIN 0x40 +#define CB2LIN (BASE2LIN | CENTR2LIN) +#define CHB3D6C 0x80 + +// Legacy Control/Status Register+2 (16h) +#define DAC2SPDO 0x20 +#define SPDCOPYRHT 0x40 +#define ENSPDOUT 0x80 + +// Legacy Control/Status Register+3 (17h) +#define FMSEL 0x03 +#define VSBSEL 0x0c +#define VMPU 0x60 +#define NXCHG 0x80 + +// Miscellaneous Control Register (18h) +#define REAR2LIN 0x20 +#define MUTECH1 0x40 +#define ENCENTER 0x80 + +// Miscellaneous Control Register+1 (19h) +#define SELSPDIFI2 0x01 +#define SPDF_AC97 0x80 + +// Miscellaneous Control Register+2 (1ah) +#define AC3_EN 0x04 +#define FM_EN 0x08 +#define SPD32SEL 0x20 +#define XCHGDAC 0x40 +#define ENDBDAC 0x80 + +// Miscellaneous Control Register+3 (1bh) +#define SPDIFI48K 0x01 +#define SPDO5V 0x02 +#define N4SPK3D 0x04 +#define RESET 0x40 +#define PWD 0x80 +#define SPDIF48K (SPDIFI48K << 24 | SPDF_AC97 << 8) + +// Mixer1 (24h) +#define CDPLAY 0x01 +#define X3DEN 0x02 +#define REAR2FRONT 0x10 +#define SPK4 0x20 +#define WSMUTE 0x40 +#define FMMUTE 0x80 + +// Miscellaneous Register (27h) +#define SPDVALID 0x02 +#define CENTR2MIC 0x04 + +// Miscellaneous Register2 (92h) +#define SPD32KFMT 0x10 + +#define CM_CFMT_DACSHIFT 2 +#define CM_CFMT_ADCSHIFT 0 +#define CM_FREQ_DACSHIFT 5 +#define CM_FREQ_ADCSHIFT 2 +#define RSTDAC RST_CH1 +#define RSTADC RST_CH0 +#define ENDAC CHEN1 +#define ENADC CHEN0 +#define PAUSEDAC PAUSE1 +#define PAUSEADC PAUSE0 +#define CODEC_CMI_ADC_FRAME1 CODEC_CMI_CH0_FRAME1 +#define CODEC_CMI_ADC_FRAME2 CODEC_CMI_CH0_FRAME2 +#define CODEC_CMI_DAC_FRAME1 CODEC_CMI_CH1_FRAME1 +#define CODEC_CMI_DAC_FRAME2 CODEC_CMI_CH1_FRAME2 +#define DACINT CHINT1 +#define ADCINT CHINT0 +#define DACBUSY CH1BUSY +#define ADCBUSY CH0BUSY +#define ENDACINT CH1_INT_EN +#define ENADCINT CH0_INT_EN + +static const unsigned sample_size[] = { 1, 2, 2, 4 }; +static const unsigned sample_shift[] = { 0, 1, 1, 2 }; + +#define SND_DEV_DSP16 5 + +#define NR_DEVICE 3 /* maximum number of devices */ + +#define set_dac1_rate set_adc_rate +#define set_dac1_rate_unlocked set_adc_rate_unlocked +#define stop_dac1 stop_adc +#define stop_dac1_unlocked stop_adc_unlocked +#define get_dmadac1 get_dmaadc + +static unsigned int devindex = 0; + +//*********************************************/ + +struct cm_state { + /* magic */ + unsigned int magic; + + /* list of cmedia devices */ + struct list_head devs; + + /* the corresponding pci_dev structure */ + struct pci_dev *dev; + + int dev_audio; /* soundcore stuff */ + int dev_mixer; + + 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; + dma_addr_t dmaaddr; + 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 enabled:1; + unsigned ossfragshift; + int ossmaxfrags; + unsigned subdivision; + } dma_dac, dma_adc; + +#ifdef CONFIG_SOUND_CMPCI_MIDI + int midi_devc; + struct address_info mpu_data; +#endif +#ifdef CONFIG_SOUND_CMPCI_JOYSTICK + struct gameport *gameport; +#endif + + int chip_version; + int max_channels; + int curr_channels; + 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 +#define DO_BIGENDIAN_W 0x00001000 /* used in PowerPC */ +#define DO_BIGENDIAN_R 0x00002000 /* used in PowerPC */ + +static LIST_HEAD(devs); + +static int mpuio; +static int fmio; +static int joystick; +static int spdif_inverse; +static int spdif_loop; +static int spdif_out; +static int use_line_as_rear; +static int use_line_as_bass; +static int use_mic_as_bass; +static int mic_boost; +static int hw_copy; +module_param(mpuio, int, 0); +module_param(fmio, int, 0); +module_param(joystick, bool, 0); +module_param(spdif_inverse, bool, 0); +module_param(spdif_loop, bool, 0); +module_param(spdif_out, bool, 0); +module_param(use_line_as_rear, bool, 0); +module_param(use_line_as_bass, bool, 0); +module_param(use_mic_as_bass, bool, 0); +module_param(mic_boost, bool, 0); +module_param(hw_copy, bool, 0); +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(joystick, "(1/0) Enable joystick interface, still need joystick driver"); +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(spdif_out, "(1/0) Send PCM to S/PDIF-out (PCM volume will not function)"); +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(use_mic_as_bass, "(1/0) Use mic-in jack as bass/center"); +MODULE_PARM_DESC(mic_boost, "(1/0) Enable microphone boost"); +MODULE_PARM_DESC(hw_copy, "Copy front channel to surround channel"); + +/* --------------------------------------------------------------------- */ + +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_ADC_FRAME1); + outw(count - 1, s->iobase + CODEC_CMI_ADC_FRAME2); + maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~CHADC0, 0); +} + +static void set_dmaadc(struct cm_state *s, unsigned int addr, unsigned int count) +{ + outl(addr, s->iobase + CODEC_CMI_ADC_FRAME1); + outw(count - 1, s->iobase + CODEC_CMI_ADC_FRAME2); + maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~0, CHADC0); +} + +static void set_dmadac(struct cm_state *s, unsigned int addr, unsigned int count) +{ + outl(addr, s->iobase + CODEC_CMI_DAC_FRAME1); + outw(count - 1, s->iobase + CODEC_CMI_DAC_FRAME2); + maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~CHADC1, 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_ADC_FRAME2 + 2); +} + +static void set_countdac(struct cm_state *s, unsigned count) +{ + outw(count - 1, s->iobase + CODEC_CMI_DAC_FRAME2 + 2); + if (s->status & DO_DUAL_DAC) + set_countadc(s, count); +} + +static unsigned get_dmadac(struct cm_state *s) +{ + unsigned int curr_addr; + + curr_addr = inw(s->iobase + CODEC_CMI_DAC_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 unsigned get_dmaadc(struct cm_state *s) +{ + unsigned int curr_addr; + + curr_addr = inw(s->iobase + CODEC_CMI_ADC_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) +{ + unsigned char regval, pseudo; + + // pseudo register + if (idx == DSP_MIX_AUXVOL_L) { + data >>= 4; + data &= 0x0f; + regval = inb(s->iobase + CODEC_CMI_AUX_VOL) & ~0x0f; + outb(regval | data, s->iobase + CODEC_CMI_AUX_VOL); + return; + } + if (idx == DSP_MIX_AUXVOL_R) { + data &= 0xf0; + regval = inb(s->iobase + CODEC_CMI_AUX_VOL) & ~0xf0; + outb(regval | data, s->iobase + CODEC_CMI_AUX_VOL); + return; + } + outb(idx, s->iobase + CODEC_SB16_ADDR); + udelay(10); + // pseudo bits + if (idx == DSP_MIX_OUTMIXIDX) { + pseudo = data & ~0x1f; + pseudo >>= 1; + regval = inb(s->iobase + CODEC_CMI_MIXER2) & ~0x30; + outb(regval | pseudo, s->iobase + CODEC_CMI_MIXER2); + } + if (idx == DSP_MIX_ADCMIXIDX_L) { + pseudo = data & 0x80; + pseudo >>= 1; + regval = inb(s->iobase + CODEC_CMI_MIXER2) & ~0x40; + outb(regval | pseudo, s->iobase + CODEC_CMI_MIXER2); + } + if (idx == DSP_MIX_ADCMIXIDX_R) { + pseudo = data & 0x80; + regval = inb(s->iobase + CODEC_CMI_MIXER2) & ~0x80; + outb(regval | pseudo, s->iobase + CODEC_CMI_MIXER2); + } + outb(data, s->iobase + CODEC_SB16_DATA); + udelay(10); +} + +static unsigned char rdmixer(struct cm_state *s, unsigned char idx) +{ + unsigned char v, pseudo; + + // pseudo register + if (idx == DSP_MIX_AUXVOL_L) { + v = inb(s->iobase + CODEC_CMI_AUX_VOL) & 0x0f; + v <<= 4; + return v; + } + if (idx == DSP_MIX_AUXVOL_L) { + v = inb(s->iobase + CODEC_CMI_AUX_VOL) & 0xf0; + return v; + } + outb(idx, s->iobase + CODEC_SB16_ADDR); + udelay(10); + v = inb(s->iobase + CODEC_SB16_DATA); + udelay(10); + // pseudo bits + if (idx == DSP_MIX_OUTMIXIDX) { + pseudo = inb(s->iobase + CODEC_CMI_MIXER2) & 0x30; + pseudo <<= 1; + v |= pseudo; + } + if (idx == DSP_MIX_ADCMIXIDX_L) { + pseudo = inb(s->iobase + CODEC_CMI_MIXER2) & 0x40; + pseudo <<= 1; + v |= pseudo; + } + if (idx == DSP_MIX_ADCMIXIDX_R) { + pseudo = inb(s->iobase + CODEC_CMI_MIXER2) & 0x80; + v |= pseudo; + } + return v; +} + +static void set_fmt_unlocked(struct cm_state *s, unsigned char mask, unsigned char data) +{ + if (mask && s->chip_version > 0) { /* 8338 cannot keep this */ + 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_spdif_copyright(struct cm_state *s, int spdif_copyright) +{ + /* enable SPDIF-in Copyright */ + maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 2, ~SPDCOPYRHT, spdif_copyright ? SPDCOPYRHT : 0); +} + +static void set_spdif_loop(struct cm_state *s, int spdif_loop) +{ + /* 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, SPDFLOOP); + } else { + s->status &= ~DO_SPDIF_LOOP; + /* turn off spdif-in to spdif-out */ + maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~SPDFLOOP, 0); + } +} + +static void set_spdif_monitor(struct cm_state *s, int channel) +{ + // SPDO2DAC + maskw(s->iobase + CODEC_CMI_FUNCTRL1, ~SPDO2DAC, channel == 2 ? SPDO2DAC : 0); + // CDPLAY + if (s->chip_version >= 39) + maskb(s->iobase + CODEC_CMI_MIXER1, ~CDPLAY, channel ? CDPLAY : 0); +} + +static void set_spdifout_level(struct cm_state *s, int level5v) +{ + /* SPDO5V */ + if (s->chip_version > 0) + maskb(s->iobase + CODEC_CMI_MISC_CTRL + 3, ~SPDO5V, level5v ? SPDO5V : 0); +} + +static void set_spdifin_inverse(struct cm_state *s, int spdif_inverse) +{ + if (s->chip_version == 0) /* 8338 has not this feature */ + return; + if (spdif_inverse) { + /* turn on spdif-in inverse */ + if (s->chip_version >= 39) + maskb(s->iobase + CODEC_CMI_CHFORMAT, ~0, INVSPDIFI); + else + maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0, 1); + } else { + /* turn off spdif-ininverse */ + if (s->chip_version >= 39) + maskb(s->iobase + CODEC_CMI_CHFORMAT, ~INVSPDIFI, 0); + else + maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~1, 0); + } +} + +static void set_spdifin_channel2(struct cm_state *s, int channel2) +{ + /* SELSPDIFI2 */ + if (s->chip_version >= 39) + maskb(s->iobase + CODEC_CMI_MISC_CTRL + 1, ~SELSPDIFI2, channel2 ? SELSPDIFI2 : 0); +} + +static void set_spdifin_valid(struct cm_state *s, int valid) +{ + /* SPDVALID */ + maskb(s->iobase + CODEC_CMI_MISC, ~SPDVALID, valid ? SPDVALID : 0); +} + +static void set_spdifout_unlocked(struct cm_state *s, unsigned rate) +{ + if (rate != 48000 && rate != 44100) + rate = 0; + if (rate == 48000 || rate == 44100) { + set_spdif_loop(s, 0); + // SPDF_1 + maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~0, SPDF_1); + // SPDIFI48K SPDF_AC97 + maskl(s->iobase + CODEC_CMI_MISC_CTRL, ~SPDIF48K, rate == 48000 ? SPDIF48K : 0); + if (s->chip_version >= 55) + // SPD32KFMT + maskb(s->iobase + CODEC_CMI_MISC_CTRL2, ~SPD32KFMT, rate == 48000 ? SPD32KFMT : 0); + if (s->chip_version > 0) + // ENSPDOUT + maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 2, ~0, ENSPDOUT); + // monitor SPDIF out + set_spdif_monitor(s, 2); + s->status |= DO_SPDIF_OUT; + } else { + maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~SPDF_1, 0); + maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 2, ~ENSPDOUT, 0); + // monitor none + set_spdif_monitor(s, 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); +} + +static void set_spdifin_unlocked(struct cm_state *s, unsigned rate) +{ + if (rate == 48000 || rate == 44100) { + // SPDF_1 + maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~0, SPDF_1); + // SPDIFI48K SPDF_AC97 + maskl(s->iobase + CODEC_CMI_MISC_CTRL, ~SPDIF48K, rate == 48000 ? SPDIF48K : 0); + s->status |= DO_SPDIF_IN; + } else { + maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~SPDF_1, 0); + s->status &= ~DO_SPDIF_IN; + } +} + +static void set_spdifin(struct cm_state *s, unsigned rate) +{ + unsigned long flags; + + spin_lock_irqsave(&s->lock, flags); + set_spdifin_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) +{ + if (!(s->capability & CAN_AC3)) + return; + /* enable AC3 */ + if (rate && rate != 44100) + rate = 48000; + if (rate == 48000 || rate == 44100) { + // mute DAC + maskb(s->iobase + CODEC_CMI_MIXER1, ~0, WSMUTE); + if (s->chip_version >= 39) + maskb(s->iobase + CODEC_CMI_MISC_CTRL, ~0, MUTECH1); + // AC3EN for 039, 0x04 + if (s->chip_version >= 39) { + maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0, AC3_EN); + if (s->chip_version == 55) + maskb(s->iobase + CODEC_CMI_SPDIF_CTRL, ~2, 0); + // AC3EN for 037, 0x10 + } else if (s->chip_version == 37) + maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0, 0x10); + if (s->capability & CAN_AC3_HW) { + // SPD24SEL for 039, 0x20, but cannot be set + if (s->chip_version == 39) + maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0, SPD24SEL); + // SPD24SEL for 037, 0x02 + else if (s->chip_version == 37) + maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~0, 0x02); + if (s->chip_version >= 39) + maskb(s->iobase + CODEC_CMI_MIXER1, ~CDPLAY, 0); + + s->status |= DO_AC3_HW; + } else { + // SPD32SEL for 037 & 039 + maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~0, SPD32SEL); + // 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, ~WSMUTE, 0); + if (s->chip_version >= 39) + maskb(s->iobase + CODEC_CMI_MISC_CTRL, ~MUTECH1, 0); + maskb(s->iobase + CODEC_CMI_CHFORMAT + 2, ~(SPD24SEL|0x12), 0); + maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~(SPD32SEL|AC3_EN), 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, CDPLAY); + s->status &= ~DO_AC3; + } + s->spdif_counter = 0; +} + +static void set_line_as_rear(struct cm_state *s, int use_line_as_rear) +{ + if (!(s->capability & CAN_LINE_AS_REAR)) + return; + if (use_line_as_rear) { + maskb(s->iobase + CODEC_CMI_MIXER1, ~0, SPK4); + s->status |= DO_LINE_AS_REAR; + } else { + maskb(s->iobase + CODEC_CMI_MIXER1, ~SPK4, 0); + s->status &= ~DO_LINE_AS_REAR; + } +} + +static void set_line_as_bass(struct cm_state *s, int use_line_as_bass) +{ + if (!(s->capability & CAN_LINE_AS_BASS)) + return; + if (use_line_as_bass) { + maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~0, CB2LIN); + s->status |= DO_LINE_AS_BASS; + } else { + maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~CB2LIN, 0); + s->status &= ~DO_LINE_AS_BASS; + } +} + +static void set_mic_as_bass(struct cm_state *s, int use_mic_as_bass) +{ + if (!(s->capability & CAN_MIC_AS_BASS)) + return; + if (use_mic_as_bass) { + maskb(s->iobase + CODEC_CMI_MISC, ~0, 0x04); + s->status |= DO_MIC_AS_BASS; + } else { + maskb(s->iobase + CODEC_CMI_MISC, ~0x04, 0); + s->status &= ~DO_MIC_AS_BASS; + } +} + +static void set_hw_copy(struct cm_state *s, int hw_copy) +{ + if (s->max_channels > 2 && hw_copy) + maskb(s->iobase + CODEC_CMI_MISC_CTRL + 3, ~0, N4SPK3D); + else + maskb(s->iobase + CODEC_CMI_MISC_CTRL + 3, ~N4SPK3D, 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 int trans_ac3(struct cm_state *s, void *dest, const char __user *source, int size) +{ + int i = size / 2; + unsigned long data; + unsigned short data16; + unsigned long *dst = (unsigned long *) dest; + unsigned short __user *src = (unsigned short __user *)source; + int err; + + do { + if ((err = __get_user(data16, src++))) + return err; + data = (unsigned long)le16_to_cpu(data16); + 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++ = cpu_to_le32(data); + s->spdif_counter++; + if (s->spdif_counter == 384) + s->spdif_counter = 0; + } while (--i); + + return 0; +} + +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 <<= CM_FREQ_ADCSHIFT; + + maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~ASFC, 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 <<= CM_FREQ_ADCSHIFT; + + spin_lock_irqsave(&s->lock, flags); + maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~ASFC, 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 <<= CM_FREQ_DACSHIFT; + + spin_lock_irqsave(&s->lock, flags); + maskb(s->iobase + CODEC_CMI_FUNCTRL1 + 1, ~DSFC, freq); + spin_unlock_irqrestore(&s->lock, flags); + + if (s->curr_channels <= 2 && spdif_out) + set_spdifout(s, rate); + if (s->status & DO_DUAL_DAC) + set_dac1_rate(s, rate); +} + +/* --------------------------------------------------------------------- */ +static inline void reset_adc(struct cm_state *s) +{ + /* reset bus master */ + outb(s->enable | RSTADC, s->iobase + CODEC_CMI_FUNCTRL0 + 2); + udelay(10); + outb(s->enable & ~RSTADC, s->iobase + CODEC_CMI_FUNCTRL0 + 2); +} + +static inline void reset_dac(struct cm_state *s) +{ + /* reset bus master */ + outb(s->enable | RSTDAC, s->iobase + CODEC_CMI_FUNCTRL0 + 2); + udelay(10); + outb(s->enable & ~RSTDAC, 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, PAUSEADC); +} + +static inline void pause_dac(struct cm_state *s) +{ + maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~0, PAUSEDAC); + if (s->status & DO_DUAL_DAC) + pause_adc(s); +} + +static inline void disable_adc(struct cm_state *s) +{ + /* disable channel */ + s->enable &= ~ENADC; + 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 &= ~ENDAC; + 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 & ENADC)) { + /* enable channel */ + s->enable |= ENADC; + outb(s->enable, s->iobase + CODEC_CMI_FUNCTRL0 + 2); + } + maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~PAUSEADC, 0); +} + +static inline void enable_dac_unlocked(struct cm_state *s) +{ + if (!(s->enable & ENDAC)) { + /* enable channel */ + s->enable |= ENDAC; + outb(s->enable, s->iobase + CODEC_CMI_FUNCTRL0 + 2); + } + maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~PAUSEDAC, 0); + + if (s->status & DO_DUAL_DAC) + enable_adc(s); +} + +static inline void stop_adc_unlocked(struct cm_state *s) +{ + if (s->enable & ENADC) { + /* disable interrupt */ + maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~ENADCINT, 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 & ENDAC) { + /* disable interrupt */ + maskb(s->iobase + CODEC_CMI_INT_HLDCLR + 2, ~ENDACINT, 0); + disable_dac(s); + } + if (s->status & DO_DUAL_DAC) + stop_dac1_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 inline 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, ENADCINT); + 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, ENADCINT); + 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, ENDACINT); + 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; + static unsigned int fmmute = 0; + + 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, NXCHG); + // CHB3D or CHB3D5C + maskb(s->iobase + CODEC_CMI_CHFORMAT + 3, ~(CHB3D5C|CHB3D), channels > 4 ? CHB3D5C : CHB3D); + // CHB3D6C + maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~CHB3D6C, channels == 6 ? CHB3D6C : 0); + // ENCENTER + maskb(s->iobase + CODEC_CMI_MISC_CTRL, ~ENCENTER, channels == 6 ? ENCENTER : 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, ENDBDAC|XCHGDAC); + // mute FM + fmmute = inb(s->iobase + CODEC_CMI_MIXER1) & FMMUTE; + maskb(s->iobase + CODEC_CMI_MIXER1, ~0, FMMUTE); + 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); + } + // disable 4 speaker mode (analog duplicate) + set_hw_copy(s, 0); + s->curr_channels = channels; + + // enable jack redirect + set_line_as_rear(s, use_line_as_rear); + if (channels > 4) { + set_line_as_bass(s, use_line_as_bass); + set_mic_as_bass(s, use_mic_as_bass); + } + } else { + if (s->status & DO_MULTI_CH_HW) { + maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 3, ~NXCHG, 0); + maskb(s->iobase + CODEC_CMI_CHFORMAT + 3, ~(CHB3D5C|CHB3D), 0); + maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 1, ~CHB3D6C, 0); + } else if (s->status & DO_DUAL_DAC) { + maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~ENDBDAC, 0); + maskb(s->iobase + CODEC_CMI_MIXER1, ~FMMUTE, fmmute); + } + // enable 4 speaker mode (analog duplicate) + set_hw_copy(s, hw_copy); + s->status &= ~DO_MULTI_CH; + s->curr_channels = s->fmt & (CM_CFMT_STEREO << CM_CFMT_DACSHIFT) ? 2 : 1; + // disable jack redirect + set_line_as_rear(s, hw_copy ? use_line_as_rear : 0); + set_line_as_bass(s, 0); + set_mic_as_bass(s, 0); + } + 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 cm_state *s, 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++) + ClearPageReserved(pstart); + pci_free_consistent(s->dev, PAGE_SIZE << db->buforder, db->rawbuf, db->dmaaddr); + } + 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 = pci_alloc_consistent(s->dev, PAGE_SIZE << order, &db->dmaaddr))) + break; + if (!db->rawbuf || !db->dmaaddr) + return -ENOMEM; + db->buforder = order; + /* now mark the pages as reserved; otherwise remap_pfn_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++) + SetPageReserved(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->dmaaddr, db->dmasize >> sample_shift[fmt]); + else + set_dmaadc(s, db->dmaaddr, db->dmasize >> sample_shift[fmt]); + /* program sample counts */ + set_countdac(s, db->fragsamples); + } else { + set_dmadac(s, db->dmaaddr, db->dmasize >> sample_shift[fmt]); + /* program sample counts */ + set_countdac(s, db->fragsamples); + } + spin_unlock_irqrestore(&s->lock, flags); + db->enabled = 1; + 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) { + /* the dac part will finish for this */ + } 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->status & DO_DUAL_DAC) { + s->dma_adc.hwptr = hwptr; + s->dma_adc.total_bytes += diff; + } + if (s->dma_dac.mapped) { + s->dma_dac.count += diff; + if (s->status & DO_DUAL_DAC) + s->dma_adc.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->status & DO_DUAL_DAC) + s->dma_adc.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->status & DO_DUAL_DAC) + s->dma_adc.endcleared = 1; + } + if (s->dma_dac.count + (signed)s->dma_dac.fragsize <= (signed)s->dma_dac.dmasize) + wake_up(&s->dma_dac.wait); + } + } +} + +static irqreturn_t 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 IRQ_NONE; + spin_lock(&s->lock); + intstat = inb(s->iobase + CODEC_CMI_INT_HLDCLR + 2); + /* acknowledge interrupt */ + if (intsrc & ADCINT) + mask |= ENADCINT; + if (intsrc & DACINT) + mask |= ENDACINT; + outb(intstat & ~mask, s->iobase + CODEC_CMI_INT_HLDCLR + 2); + outb(intstat | mask, s->iobase + CODEC_CMI_INT_HLDCLR + 2); + cm_update_ptr(s); + spin_unlock(&s->lock); +#ifdef CONFIG_SOUND_CMPCI_MIDI + if (intsrc & 0x00010000) { // UART interrupt + if (s->midi_devc && intchk_mpu401((void *)s->midi_devc)) + mpuintr(irq, (void *)s->midi_devc, regs); + else + inb(s->iomidi);// dummy read + } +#endif + return IRQ_HANDLED; +} + +/* --------------------------------------------------------------------- */ + +static const char invalid_magic[] = KERN_CRIT "cmpci: invalid magic value\n"; + +#define VALIDATE_STATE(s) \ +({ \ + if (!(s) || (s)->magic != CM_MAGIC) { \ + printk(invalid_magic); \ + return -ENXIO; \ + } \ +}) + +/* --------------------------------------------------------------------- */ + +#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, 0x06 }, + [SOUND_MIXER_LINE] = { DSP_MIX_LINEVOLIDX_L, DSP_MIX_LINEVOLIDX_R, MT_5MUTE, 0x10, 0x18 }, + [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_LINE1] = { DSP_MIX_AUXVOL_L, DSP_MIX_AUXVOL_R, MT_5MUTE, 0x80, 0x60 }, + [SOUND_MIXER_SPEAKER]= { DSP_MIX_SPKRVOLIDX, DSP_MIX_SPKRVOLIDX, MT_5MUTEMONO, 0x00, 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_LINE1] = 7, + [SOUND_MIXER_SPEAKER]= 8 +}; + +static unsigned mixer_outmask(struct cm_state *s) +{ + unsigned long flags; + int i, j, k; + + spin_lock_irqsave(&s->lock, flags); + j = rdmixer(s, DSP_MIX_OUTMIXIDX); + spin_unlock_irqrestore(&s->lock, flags); + for (k = i = 0; i < SOUND_MIXER_NRDEVICES; i++) + if (j & mixtable[i].play) + k |= 1 << i; + return k; +} + +static unsigned mixer_recmask(struct cm_state *s) +{ + unsigned long flags; + int i, j, k; + + spin_lock_irqsave(&s->lock, flags); + j = rdmixer(s, DSP_MIX_ADCMIXIDX_L); + spin_unlock_irqrestore(&s->lock, flags); + 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; + void __user *argp = (void __user *)arg; + int __user *p = argp; + + VALIDATE_STATE(s); + if (cmd == SOUND_MIXER_INFO) { + mixer_info info; + memset(&info, 0, sizeof(info)); + strlcpy(info.id, "cmpci", sizeof(info.id)); + strlcpy(info.name, "C-Media PCI", sizeof(info.name)); + info.modify_counter = s->mix.modcnt; + if (copy_to_user(argp, &info, sizeof(info))) + return -EFAULT; + return 0; + } + if (cmd == SOUND_OLD_MIXER_INFO) { + _old_mixer_info info; + memset(&info, 0, sizeof(info)); + strlcpy(info.id, "cmpci", sizeof(info.id)); + strlcpy(info.name, "C-Media cmpci", sizeof(info.name)); + if (copy_to_user(argp, &info, sizeof(info))) + return -EFAULT; + return 0; + } + if (cmd == OSS_GETVERSION) + return put_user(SOUND_VERSION, p); + if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int)) + return -EINVAL; + if (_SIOC_DIR(cmd) == _SIOC_READ) { + switch (_IOC_NR(cmd)) { + case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */ + val = mixer_recmask(s); + return put_user(val, p); + + case SOUND_MIXER_OUTSRC: /* Arg contains a bit for each recording source */ + val = mixer_outmask(s); + return put_user(val, p); + + 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, p); + + 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, p); + + 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, p); + + 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, p); + + case SOUND_MIXER_CAPS: + return put_user(0, p); + + 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], p); + } + } + if (_SIOC_DIR(cmd) != (_SIOC_READ|_SIOC_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, p)) + 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) | (j & 0x80)); + spin_unlock_irqrestore(&s->lock, flags); + return 0; + + case SOUND_MIXER_OUTSRC: /* Arg contains a bit for each recording source */ + if (get_user(val, p)) + 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); + wrmixer(s, DSP_MIX_OUTMIXIDX, 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, p)) + 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); + if (i == SOUND_MIXER_MIC) + maskb(s->iobase + CODEC_CMI_MIXER2, ~0x0e, rr<<1); + break; + + case MT_5MUTEMONO: + rl = l < 4 ? 0 : (l - 5) / 3; + wrmixer(s, mixtable[i].left, rl<<3); + l = rdmixer(s, DSP_MIX_OUTMIXIDX) & ~mixtable[i].play; + r = rl ? mixtable[i].play : 0; + wrmixer(s, DSP_MIX_OUTMIXIDX, l | r); + /* for recording */ + if (i == SOUND_MIXER_MIC) { + if (s->chip_version >= 37) { + rr = rl >> 1; + maskb(s->iobase + CODEC_CMI_MIXER2, ~0x0e, (rr&0x07)<<1); + frobindir(s, DSP_MIX_EXTENSION, ~0x01, rr>>3); + } else { + rr = rl >> 2; + 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); + l = rdmixer(s, DSP_MIX_OUTMIXIDX); + l &= ~mixtable[i].play; + r = (rl|rr) ? mixtable[i].play : 0; + wrmixer(s, DSP_MIX_OUTMIXIDX, l | r); + 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], p); + } +} + +/* --------------------------------------------------------------------- */ + +static int cm_open_mixdev(struct inode *inode, struct file *file) +{ + int minor = iminor(inode); + struct list_head *list; + struct cm_state *s; + + for (list = devs.next; ; list = list->next) { + if (list == &devs) + return -ENODEV; + s = list_entry(list, struct cm_state, devs); + if (s->dev_mixer == minor) + break; + } + VALIDATE_STATE(s); + file->private_data = s; + return nonseekable_open(inode, file); +} + +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; + add_wait_queue(&s->dma_dac.wait, &wait); + for (;;) { + __set_current_state(TASK_INTERRUPTIBLE); + 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)) + DBG(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 __user *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 swptr; + int cnt; + + VALIDATE_STATE(s); + 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; + + add_wait_queue(&s->dma_adc.wait, &wait); + 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; + if (cnt <= 0) + __set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&s->lock, flags); + if (cnt > count) + cnt = count; + if (cnt <= 0) { + if (s->dma_adc.enabled) + start_adc(s); + if (file->f_flags & O_NONBLOCK) { + if (!ret) + ret = -EAGAIN; + goto out; + } + if (!schedule_timeout(HZ)) { + printk(KERN_DEBUG "cmpci: read: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %u\n", + 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.dmaaddr, 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)) { + if (!ret) + ret = -ERESTARTSYS; + goto out; + } + continue; + } + if (s->status & DO_BIGENDIAN_R) { + int i, err; + unsigned char *src; + char __user *dst = buffer; + unsigned char data[2]; + + src = (unsigned char *) (s->dma_adc.rawbuf + swptr); + // copy left/right sample at one time + for (i = 0; i < cnt / 2; i++) { + data[0] = src[1]; + data[1] = src[0]; + if ((err = __put_user(data[0], dst++))) { + ret = err; + goto out; + } + if ((err = __put_user(data[1], dst++))) { + ret = err; + goto out; + } + src += 2; + } + } else if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) { + if (!ret) + ret = -EFAULT; + goto out; + } + 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; + if (s->dma_adc.enabled) + start_adc_unlocked(s); + spin_unlock_irqrestore(&s->lock, flags); + } +out: + remove_wait_queue(&s->dma_adc.wait, &wait); + set_current_state(TASK_RUNNING); + return ret; +} + +static ssize_t cm_write(struct file *file, const char __user *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 swptr; + int cnt; + + VALIDATE_STATE(s); + 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; + + add_wait_queue(&s->dma_dac.wait, &wait); + 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; + } + if (cnt <= 0) + __set_current_state(TASK_INTERRUPTIBLE); + 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) { + if (s->dma_dac.enabled) + start_dac(s); + if (file->f_flags & O_NONBLOCK) { + if (!ret) + ret = -EAGAIN; + goto out; + } + if (!schedule_timeout(HZ)) { + printk(KERN_DEBUG "cmpci: write: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %u\n", + 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.dmaaddr, 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.dmaaddr, 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)) { + if (!ret) + ret = -ERESTARTSYS; + goto out; + } + continue; + } + if (s->status & DO_AC3_SW) { + int err; + + // clip exceeded data, caught by 033 and 037 + if (swptr + 2 * cnt > s->dma_dac.dmasize) + cnt = (s->dma_dac.dmasize - swptr) / 2; + if ((err = trans_ac3(s, s->dma_dac.rawbuf + swptr, buffer, cnt))) { + ret = err; + goto out; + } + swptr = (swptr + 2 * cnt) % s->dma_dac.dmasize; + } else if ((s->status & DO_DUAL_DAC) && (s->status & DO_BIGENDIAN_W)) { + int i, err; + const char __user *src = buffer; + unsigned char *dst0, *dst1; + unsigned char data[8]; + + dst0 = (unsigned char *) (s->dma_dac.rawbuf + swptr); + dst1 = (unsigned char *) (s->dma_adc.rawbuf + swptr); + // copy left/right sample at one time + for (i = 0; i < cnt / 4; i++) { + if ((err = __get_user(data[0], src++))) { + ret = err; + goto out; + } + if ((err = __get_user(data[1], src++))) { + ret = err; + goto out; + } + if ((err = __get_user(data[2], src++))) { + ret = err; + goto out; + } + if ((err = __get_user(data[3], src++))) { + ret = err; + goto out; + } + if ((err = __get_user(data[4], src++))) { + ret = err; + goto out; + } + if ((err = __get_user(data[5], src++))) { + ret = err; + goto out; + } + if ((err = __get_user(data[6], src++))) { + ret = err; + goto out; + } + if ((err = __get_user(data[7], src++))) { + ret = err; + goto out; + } + dst0[0] = data[1]; + dst0[1] = data[0]; + dst0[2] = data[3]; + dst0[3] = data[2]; + dst1[0] = data[5]; + dst1[1] = data[4]; + dst1[2] = data[7]; + dst1[3] = data[6]; + dst0 += 4; + dst1 += 4; + } + swptr = (swptr + cnt) % s->dma_dac.dmasize; + } else if (s->status & DO_DUAL_DAC) { + int i, err; + unsigned long __user *src = (unsigned long __user *) buffer; + unsigned long *dst0, *dst1; + + 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++) { + if ((err = __get_user(*dst0++, src++))) { + ret = err; + goto out; + } + if ((err = __get_user(*dst1++, src++))) { + ret = err; + goto out; + } + } + swptr = (swptr + cnt) % s->dma_dac.dmasize; + } else if (s->status & DO_BIGENDIAN_W) { + int i, err; + const char __user *src = buffer; + unsigned char *dst; + unsigned char data[2]; + + dst = (unsigned char *) (s->dma_dac.rawbuf + swptr); + // swap hi/lo bytes for each sample + for (i = 0; i < cnt / 2; i++) { + if ((err = __get_user(data[0], src++))) { + ret = err; + goto out; + } + if ((err = __get_user(data[1], src++))) { + ret = err; + goto out; + } + dst[0] = data[1]; + dst[1] = data[0]; + dst += 2; + } + swptr = (swptr + cnt) % s->dma_dac.dmasize; + } else { + if (copy_from_user(s->dma_dac.rawbuf + swptr, buffer, cnt)) { + if (!ret) + ret = -EFAULT; + goto out; + } + 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; + } + if (s->dma_dac.enabled) + start_dac(s); + } +out: + remove_wait_queue(&s->dma_dac.wait, &wait); + set_current_state(TASK_RUNNING); + 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) { + if (!s->dma_dac.ready && prog_dmabuf(s, 0)) + return 0; + poll_wait(file, &s->dma_dac.wait, wait); + } + if (file->f_mode & FMODE_READ) { + if (!s->dma_adc.ready && prog_dmabuf(s, 1)) + return 0; + 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_pfn_range(vma, vma->vm_start, + virt_to_phys(db->rawbuf) >> PAGE_SHIFT, + size, vma->vm_page_prot)) + goto out; + db->mapped = 1; + ret = 0; +out: + unlock_kernel(); + return ret; +} + +#define SNDCTL_SPDIF_COPYRIGHT _SIOW('S', 0, int) // set/reset S/PDIF copy protection +#define SNDCTL_SPDIF_LOOP _SIOW('S', 1, int) // set/reset S/PDIF loop +#define SNDCTL_SPDIF_MONITOR _SIOW('S', 2, int) // set S/PDIF monitor +#define SNDCTL_SPDIF_LEVEL _SIOW('S', 3, int) // set/reset S/PDIF out level +#define SNDCTL_SPDIF_INV _SIOW('S', 4, int) // set/reset S/PDIF in inverse +#define SNDCTL_SPDIF_SEL2 _SIOW('S', 5, int) // set S/PDIF in #2 +#define SNDCTL_SPDIF_VALID _SIOW('S', 6, int) // set S/PDIF valid +#define SNDCTL_SPDIFOUT _SIOW('S', 7, int) // set S/PDIF out +#define SNDCTL_SPDIFIN _SIOW('S', 8, int) // set S/PDIF out + +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; + void __user *argp = (void __user *)arg; + int __user *p = argp; + + 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, p); + + 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, p); + + case SNDCTL_DSP_RESET: + if (file->f_mode & FMODE_WRITE) { + stop_dac(s); + synchronize_irq(s->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->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, p)) + 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, p); + + case SNDCTL_DSP_STEREO: + if (get_user(val, p)) + 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, p)) + 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, p); + } + } + 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); + + case SNDCTL_DSP_GETFMTS: /* Returns a mask */ + return put_user(AFMT_S16_BE|AFMT_S16_LE|AFMT_U8| + ((s->capability & CAN_AC3) ? AFMT_AC3 : 0), p); + + case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ + if (get_user(val, p)) + 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_BE || val == AFMT_S16_LE) + fmtd |= CM_CFMT_16BIT << CM_CFMT_ADCSHIFT; + else + fmtm &= ~(CM_CFMT_16BIT << CM_CFMT_ADCSHIFT); + if (val == AFMT_S16_BE) + s->status |= DO_BIGENDIAN_R; + else + s->status &= ~DO_BIGENDIAN_R; + } + if (file->f_mode & FMODE_WRITE) { + stop_dac(s); + s->dma_dac.ready = 0; + if (val == AFMT_S16_BE || 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, 48000); + } else + set_ac3(s, 0); + if (s->status & DO_DUAL_DAC) { + s->dma_adc.ready = 0; + if (val == AFMT_S16_BE || val == AFMT_S16_LE) + fmtd |= CM_CFMT_STEREO << CM_CFMT_ADCSHIFT; + else + fmtm &= ~(CM_CFMT_STEREO << CM_CFMT_ADCSHIFT); + } + if (val == AFMT_S16_BE) + s->status |= DO_BIGENDIAN_W; + else + s->status &= ~DO_BIGENDIAN_W; + } + set_fmt(s, fmtm, fmtd); + } + if (s->status & DO_AC3) return put_user(AFMT_AC3, p); + return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (CM_CFMT_16BIT << CM_CFMT_ADCSHIFT) + : (CM_CFMT_16BIT << CM_CFMT_DACSHIFT))) ? val : AFMT_U8, p); + + 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 & ENDAC) && + (s->enable & ENADC)) + val |= PCM_ENABLE_OUTPUT; + return put_user(val, p); + } + if (file->f_mode & FMODE_READ && s->enable & ENADC) + val |= PCM_ENABLE_INPUT; + if (file->f_mode & FMODE_WRITE && s->enable & ENDAC) + val |= PCM_ENABLE_OUTPUT; + return put_user(val, p); + + case SNDCTL_DSP_SETTRIGGER: + if (get_user(val, p)) + 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; + s->dma_adc.enabled = 1; + start_adc(s); + } else { + s->dma_adc.enabled = 0; + 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; + } + s->dma_dac.enabled = 1; + start_dac(s); + } else { + s->dma_dac.enabled = 0; + stop_dac(s); + } + } + return 0; + + case SNDCTL_DSP_GETOSPACE: + if (!(file->f_mode & FMODE_WRITE)) + return -EINVAL; + if (!(s->enable & ENDAC) && (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(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; + + case SNDCTL_DSP_GETISPACE: + if (!(file->f_mode & FMODE_READ)) + return -EINVAL; + if (!(s->enable & ENADC) && (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(argp, &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, p); + + 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(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0; + + 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(argp, &cinfo, sizeof(cinfo)) ? -EFAULT : 0; + + 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, p); + } + return put_user(s->dma_dac.fragsize, p); + } + if ((val = prog_dmabuf(s, 1))) + return val; + return put_user(s->dma_adc.fragsize, p); + + case SNDCTL_DSP_SETFRAGMENT: + if (get_user(val, p)) + 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, p)) + 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, p); + + 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, p); + + 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, p); + + case SOUND_PCM_READ_FILTER: + return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p); + + case SNDCTL_DSP_GETCHANNELMASK: + return put_user(DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE|DSP_BIND_SPDIF, p); + + case SNDCTL_DSP_BIND_CHANNEL: + if (get_user(val, p)) + 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 (val & DSP_BIND_SPDIF) { + set_spdifin(s, s->rateadc); + if (!(s->status & DO_SPDIF_OUT)) + val &= ~DSP_BIND_SPDIF; + } + } + 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, p); + + case SOUND_PCM_WRITE_FILTER: + case SNDCTL_DSP_MAPINBUF: + case SNDCTL_DSP_MAPOUTBUF: + case SNDCTL_DSP_SETSYNCRO: + return -EINVAL; + case SNDCTL_SPDIF_COPYRIGHT: + if (get_user(val, p)) + return -EFAULT; + set_spdif_copyright(s, val); + return 0; + case SNDCTL_SPDIF_LOOP: + if (get_user(val, p)) + return -EFAULT; + set_spdif_loop(s, val); + return 0; + case SNDCTL_SPDIF_MONITOR: + if (get_user(val, p)) + return -EFAULT; + set_spdif_monitor(s, val); + return 0; + case SNDCTL_SPDIF_LEVEL: + if (get_user(val, p)) + return -EFAULT; + set_spdifout_level(s, val); + return 0; + case SNDCTL_SPDIF_INV: + if (get_user(val, p)) + return -EFAULT; + set_spdifin_inverse(s, val); + return 0; + case SNDCTL_SPDIF_SEL2: + if (get_user(val, p)) + return -EFAULT; + set_spdifin_channel2(s, val); + return 0; + case SNDCTL_SPDIF_VALID: + if (get_user(val, p)) + return -EFAULT; + set_spdifin_valid(s, val); + return 0; + case SNDCTL_SPDIFOUT: + if (get_user(val, p)) + return -EFAULT; + set_spdifout(s, val ? s->ratedac : 0); + return 0; + case SNDCTL_SPDIFIN: + if (get_user(val, p)) + return -EFAULT; + set_spdifin(s, val ? s->rateadc : 0); + return 0; + } + return mixer_ioctl(s, cmd, arg); +} + +static int cm_open(struct inode *inode, struct file *file) +{ + int minor = iminor(inode); + DECLARE_WAITQUEUE(wait, current); + unsigned char fmtm = ~0, fmts = 0; + struct list_head *list; + struct cm_state *s; + + for (list = devs.next; ; list = list->next) { + if (list == &devs) + return -ENODEV; + s = list_entry(list, struct cm_state, devs); + if (!((s->dev_audio ^ minor) & ~0xf)) + break; + } + 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; + } + add_wait_queue(&s->open_wait, &wait); + __set_current_state(TASK_INTERRUPTIBLE); + up(&s->open_sem); + schedule(); + remove_wait_queue(&s->open_wait, &wait); + set_current_state(TASK_RUNNING); + if (signal_pending(current)) + return -ERESTARTSYS; + down(&s->open_sem); + } + if (file->f_mode & FMODE_READ) { + s->status &= ~DO_BIGENDIAN_R; + 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; + s->dma_adc.enabled = 1; + set_adc_rate(s, 8000); + // spdif-in is turnned off by default + set_spdifin(s, 0); + } + if (file->f_mode & FMODE_WRITE) { + s->status &= ~DO_BIGENDIAN_W; + 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; + s->dma_dac.enabled = 1; + set_dac_rate(s, 8000); + // clear previous multichannel, spdif, ac3 state + set_spdifout(s, 0); + 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 nonseekable_open(inode, file); +} + +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, &s->dma_dac); + if (s->status & DO_DUAL_DAC) + dealloc_dmabuf(s, &s->dma_adc); + + if (s->status & DO_MULTI_CH) + set_dac_channels(s, 1); + if (s->status & DO_AC3) + set_ac3(s, 0); + if (s->status & DO_SPDIF_OUT) + set_spdifout(s, 0); + /* enable SPDIF loop */ + set_spdif_loop(s, spdif_loop); + s->status &= ~DO_BIGENDIAN_W; + } + if (file->f_mode & FMODE_READ) { + stop_adc(s); + dealloc_dmabuf(s, &s->dma_adc); + s->status &= ~DO_BIGENDIAN_R; + } + 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, +}; + +/* --------------------------------------------------------------------- */ + +static struct initvol { + int mixch; + int vol; +} initvol[] __devinitdata = { + { 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; + s->capability |= CAN_LINE_AS_BASS; + s->capability |= CAN_MIC_AS_BASS; + } 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; + s->capability |= CAN_LINE_AS_BASS; + s->capability |= CAN_MIC_AS_BASS; + } + } + s->capability |= CAN_LINE_AS_REAR; + return ChipVersion; +} + +#ifdef CONFIG_SOUND_CMPCI_JOYSTICK +static int __devinit cm_create_gameport(struct cm_state *s, int io_port) +{ + struct gameport *gp; + + if (!request_region(io_port, CM_EXTENT_GAME, "cmpci GAME")) { + printk(KERN_ERR "cmpci: gameport io ports 0x%#x in use\n", io_port); + return -EBUSY; + } + + if (!(s->gameport = gp = gameport_allocate_port())) { + printk(KERN_ERR "cmpci: can not allocate memory for gameport\n"); + release_region(io_port, CM_EXTENT_GAME); + return -ENOMEM; + } + + gameport_set_name(gp, "C-Media GP"); + gameport_set_phys(gp, "pci%s/gameport0", pci_name(s->dev)); + gp->dev.parent = &s->dev->dev; + gp->io = io_port; + + /* enable joystick */ + maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0, 0x02); + + gameport_register_port(gp); + + return 0; +} + +static void __devexit cm_free_gameport(struct cm_state *s) +{ + if (s->gameport) { + int gpio = s->gameport->io; + + gameport_unregister_port(s->gameport); + s->gameport = NULL; + maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0x02, 0); + release_region(gpio, CM_EXTENT_GAME); + } +} +#else +static inline int cm_create_gameport(struct cm_state *s, int io_port) { return -ENOSYS; } +static inline void cm_free_gameport(struct cm_state *s) { } +#endif + +#define echo_option(x)\ +if (x) strcat(options, "" #x " ") + +static int __devinit cm_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid) +{ + struct cm_state *s; + mm_segment_t fs; + int i, val, ret; + unsigned char reg_mask; + int timeout; + struct resource *ports; + 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"; + char options[256]; + + if ((ret = pci_enable_device(pcidev))) + return ret; + if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_IO)) + return -ENODEV; + if (pcidev->irq == 0) + return -ENODEV; + i = pci_set_dma_mask(pcidev, 0xffffffff); + if (i) { + printk(KERN_WARNING "cmpci: architecture does not support 32bit PCI busmaster DMA\n"); + return i; + } + s = kmalloc(sizeof(*s), GFP_KERNEL); + if (!s) { + printk(KERN_WARNING "cmpci: out of memory\n"); + return -ENOMEM; + } + /* 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_MUTEX(&s->open_sem); + spin_lock_init(&s->lock); + s->magic = CM_MAGIC; + s->dev = pcidev; + s->iobase = pci_resource_start(pcidev, 0); + s->iosynth = fmio; + s->iomidi = mpuio; +#ifdef CONFIG_SOUND_CMPCI_MIDI + s->midi_devc = 0; +#endif + s->status = 0; + if (s->iobase == 0) + return -ENODEV; + s->irq = pcidev->irq; + + if (!request_region(s->iobase, CM_EXTENT_CODEC, "cmpci")) { + printk(KERN_ERR "cmpci: io ports %#x-%#x in use\n", s->iobase, s->iobase+CM_EXTENT_CODEC-1); + ret = -EBUSY; + goto err_region5; + } + /* dump parameters */ + strcpy(options, "cmpci: "); + echo_option(joystick); + echo_option(spdif_inverse); + echo_option(spdif_loop); + echo_option(spdif_out); + echo_option(use_line_as_rear); + echo_option(use_line_as_bass); + echo_option(use_mic_as_bass); + echo_option(mic_boost); + echo_option(hw_copy); + printk(KERN_INFO "%s\n", options); + + /* 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 ((ret = request_irq(s->irq, cm_interrupt, SA_SHIRQ, "cmpci", s))) { + printk(KERN_ERR "cmpci: irq %u in use\n", s->irq); + goto err_irq; + } + printk(KERN_INFO "cmpci: found %s adapter at io %#x irq %u\n", + devicename, s->iobase, s->irq); + /* register devices */ + if ((s->dev_audio = register_sound_dsp(&cm_audio_fops, -1)) < 0) { + ret = s->dev_audio; + goto err_dev1; + } + if ((s->dev_mixer = register_sound_mixer(&cm_mixer_fops, -1)) < 0) { + ret = s->dev_mixer; + goto err_dev2; + } + 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); + } + set_fs(fs); + /* use channel 1 for playback, channel 0 for record */ + maskb(s->iobase + CODEC_CMI_FUNCTRL0, ~CHADC1, CHADC0); + /* turn off VMIC3 - mic boost */ + if (mic_boost) + maskb(s->iobase + CODEC_CMI_MIXER2, ~1, 0); + else + maskb(s->iobase + CODEC_CMI_MIXER2, ~0, 1); + s->deviceid = pcidev->device; + + if (pcidev->device == PCI_DEVICE_ID_CMEDIA_CM8738 + || pcidev->device == PCI_DEVICE_ID_CMEDIA_CM8738B) { + + /* chip version and hw capability check */ + s->chip_version = query_chip(s); + printk(KERN_INFO "cmpci: chip version = 0%d\n", s->chip_version); + + /* set SPDIF-in inverse before enable SPDIF loop */ + set_spdifin_inverse(s, spdif_inverse); + + /* use SPDIF in #1 */ + set_spdifin_channel2(s, 0); + } else { + s->chip_version = 0; + /* 8338 will fall here */ + s->max_channels = 4; + s->capability |= CAN_DUAL_DAC; + s->capability |= CAN_LINE_AS_REAR; + } + /* enable SPDIF loop */ + set_spdif_loop(s, spdif_loop); + + // enable 4 speaker mode (analog duplicate) + set_hw_copy(s, hw_copy); + + reg_mask = 0; +#ifdef CONFIG_SOUND_CMPCI_FM + /* disable FM */ + maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~8, 0); + if (s->iosynth) { + /* don't enable OPL3 if there is one */ + if (opl3_detect(s->iosynth, NULL)) { + 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); + if (opl3_detect(s->iosynth, NULL)) + ret = opl3_init(s->iosynth, NULL, THIS_MODULE); + else { + maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~8, 0); + s->iosynth = 0; + } + } + } + } +#endif +#ifdef CONFIG_SOUND_CMPCI_MIDI + 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; + goto skip_mpu; + } + ports = request_region(s->iomidi, 2, "mpu401"); + if (!ports) + goto skip_mpu; + /* disable MPU-401 */ + maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0x04, 0); + s->mpu_data.name = "cmpci mpu"; + s->mpu_data.io_base = s->iomidi; + s->mpu_data.irq = -s->irq; // tell mpu401 to share irq + if (probe_mpu401(&s->mpu_data, ports)) { + release_region(s->iomidi, 2); + s->iomidi = 0; + goto skip_mpu; + } + maskb(s->iobase + CODEC_CMI_LEGACY_CTRL + 3, ~0x60, reg_mask); + /* enable MPU-401 */ + maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0, 0x04); + /* clear all previously received interrupt */ + for (timeout = 900000; timeout > 0; timeout--) { + if ((inb(s->iomidi + 1) && 0x80) == 0) + inb(s->iomidi); + else + break; + } + if (!probe_mpu401(&s->mpu_data, ports)) { + release_region(s->iomidi, 2); + s->iomidi = 0; + maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0, 0x04); + } else { + attach_mpu401(&s->mpu_data, THIS_MODULE); + s->midi_devc = s->mpu_data.slots[1]; + } +skip_mpu: +#endif + /* disable joystick port */ + maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0x02, 0); + if (joystick) + cm_create_gameport(s, 0x200); + + /* store it in the driver field */ + pci_set_drvdata(pcidev, s); + /* put it into driver list */ + list_add_tail(&s->devs, &devs); + /* increment devindex */ + if (devindex < NR_DEVICE-1) + devindex++; + return 0; + +err_dev2: + unregister_sound_dsp(s->dev_audio); +err_dev1: + printk(KERN_ERR "cmpci: cannot register misc device\n"); + free_irq(s->irq, s); +err_irq: + release_region(s->iobase, CM_EXTENT_CODEC); +err_region5: + kfree(s); + return ret; +} + +/* --------------------------------------------------------------------- */ + +MODULE_AUTHOR("ChenLi Tien, cltien@cmedia.com.tw"); +MODULE_DESCRIPTION("CM8x38 Audio Driver"); +MODULE_LICENSE("GPL"); + +static void __devexit cm_remove(struct pci_dev *dev) +{ + struct cm_state *s = pci_get_drvdata(dev); + + if (!s) + return; + + cm_free_gameport(s); + +#ifdef CONFIG_SOUND_CMPCI_FM + if (s->iosynth) { + /* disable FM */ + maskb(s->iobase + CODEC_CMI_MISC_CTRL + 2, ~8, 0); + } +#endif +#ifdef CONFIG_SOUND_CMPCI_MIDI + if (s->iomidi) { + unload_mpu401(&s->mpu_data); + /* disable MPU-401 */ + maskb(s->iobase + CODEC_CMI_FUNCTRL1, ~0x04, 0); + } +#endif + set_spdif_loop(s, 0); + list_del(&s->devs); + outb(0, s->iobase + CODEC_CMI_INT_HLDCLR + 2); /* disable ints */ + synchronize_irq(s->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); + unregister_sound_dsp(s->dev_audio); + unregister_sound_mixer(s->dev_mixer); + kfree(s); + pci_set_drvdata(dev, NULL); +} + +static struct pci_device_id id_table[] __devinitdata = { + { PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738B, PCI_ANY_ID, PCI_ANY_ID, 0, 0 }, + { PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8738, PCI_ANY_ID, PCI_ANY_ID, 0, 0 }, + { PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338A, PCI_ANY_ID, PCI_ANY_ID, 0, 0 }, + { PCI_VENDOR_ID_CMEDIA, PCI_DEVICE_ID_CMEDIA_CM8338B, PCI_ANY_ID, PCI_ANY_ID, 0, 0 }, + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, id_table); + +static struct pci_driver cm_driver = { + .name = "cmpci", + .id_table = id_table, + .probe = cm_probe, + .remove = __devexit_p(cm_remove) +}; + +static int __init init_cmpci(void) +{ + printk(KERN_INFO "cmpci: version $Revision: 6.82 $ time " __TIME__ " " __DATE__ "\n"); + return pci_module_init(&cm_driver); +} + +static void __exit cleanup_cmpci(void) +{ + printk(KERN_INFO "cmpci: unloading\n"); + pci_unregister_driver(&cm_driver); +} + +module_init(init_cmpci); +module_exit(cleanup_cmpci); |