2116 lines
65 KiB
C
2116 lines
65 KiB
C
/*
|
|
* Driver for Cirrus Logic CS4281 based PCI soundcard
|
|
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
|
|
*
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include <sound/driver.h>
|
|
#include <asm/io.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/init.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/gameport.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <sound/core.h>
|
|
#include <sound/control.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/rawmidi.h>
|
|
#include <sound/ac97_codec.h>
|
|
#include <sound/tlv.h>
|
|
#include <sound/opl3.h>
|
|
#include <sound/initval.h>
|
|
|
|
|
|
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
|
|
MODULE_DESCRIPTION("Cirrus Logic CS4281");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_SUPPORTED_DEVICE("{{Cirrus Logic,CS4281}}");
|
|
|
|
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
|
|
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
|
|
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */
|
|
static int dual_codec[SNDRV_CARDS]; /* dual codec */
|
|
|
|
module_param_array(index, int, NULL, 0444);
|
|
MODULE_PARM_DESC(index, "Index value for CS4281 soundcard.");
|
|
module_param_array(id, charp, NULL, 0444);
|
|
MODULE_PARM_DESC(id, "ID string for CS4281 soundcard.");
|
|
module_param_array(enable, bool, NULL, 0444);
|
|
MODULE_PARM_DESC(enable, "Enable CS4281 soundcard.");
|
|
module_param_array(dual_codec, bool, NULL, 0444);
|
|
MODULE_PARM_DESC(dual_codec, "Secondary Codec ID (0 = disabled).");
|
|
|
|
/*
|
|
* Direct registers
|
|
*/
|
|
|
|
#define CS4281_BA0_SIZE 0x1000
|
|
#define CS4281_BA1_SIZE 0x10000
|
|
|
|
/*
|
|
* BA0 registers
|
|
*/
|
|
#define BA0_HISR 0x0000 /* Host Interrupt Status Register */
|
|
#define BA0_HISR_INTENA (1<<31) /* Internal Interrupt Enable Bit */
|
|
#define BA0_HISR_MIDI (1<<22) /* MIDI port interrupt */
|
|
#define BA0_HISR_FIFOI (1<<20) /* FIFO polled interrupt */
|
|
#define BA0_HISR_DMAI (1<<18) /* DMA interrupt (half or end) */
|
|
#define BA0_HISR_FIFO(c) (1<<(12+(c))) /* FIFO channel interrupt */
|
|
#define BA0_HISR_DMA(c) (1<<(8+(c))) /* DMA channel interrupt */
|
|
#define BA0_HISR_GPPI (1<<5) /* General Purpose Input (Primary chip) */
|
|
#define BA0_HISR_GPSI (1<<4) /* General Purpose Input (Secondary chip) */
|
|
#define BA0_HISR_GP3I (1<<3) /* GPIO3 pin Interrupt */
|
|
#define BA0_HISR_GP1I (1<<2) /* GPIO1 pin Interrupt */
|
|
#define BA0_HISR_VUPI (1<<1) /* VOLUP pin Interrupt */
|
|
#define BA0_HISR_VDNI (1<<0) /* VOLDN pin Interrupt */
|
|
|
|
#define BA0_HICR 0x0008 /* Host Interrupt Control Register */
|
|
#define BA0_HICR_CHGM (1<<1) /* INTENA Change Mask */
|
|
#define BA0_HICR_IEV (1<<0) /* INTENA Value */
|
|
#define BA0_HICR_EOI (3<<0) /* End of Interrupt command */
|
|
|
|
#define BA0_HIMR 0x000c /* Host Interrupt Mask Register */
|
|
/* Use same contants as for BA0_HISR */
|
|
|
|
#define BA0_IIER 0x0010 /* ISA Interrupt Enable Register */
|
|
|
|
#define BA0_HDSR0 0x00f0 /* Host DMA Engine 0 Status Register */
|
|
#define BA0_HDSR1 0x00f4 /* Host DMA Engine 1 Status Register */
|
|
#define BA0_HDSR2 0x00f8 /* Host DMA Engine 2 Status Register */
|
|
#define BA0_HDSR3 0x00fc /* Host DMA Engine 3 Status Register */
|
|
|
|
#define BA0_HDSR_CH1P (1<<25) /* Channel 1 Pending */
|
|
#define BA0_HDSR_CH2P (1<<24) /* Channel 2 Pending */
|
|
#define BA0_HDSR_DHTC (1<<17) /* DMA Half Terminal Count */
|
|
#define BA0_HDSR_DTC (1<<16) /* DMA Terminal Count */
|
|
#define BA0_HDSR_DRUN (1<<15) /* DMA Running */
|
|
#define BA0_HDSR_RQ (1<<7) /* Pending Request */
|
|
|
|
#define BA0_DCA0 0x0110 /* Host DMA Engine 0 Current Address */
|
|
#define BA0_DCC0 0x0114 /* Host DMA Engine 0 Current Count */
|
|
#define BA0_DBA0 0x0118 /* Host DMA Engine 0 Base Address */
|
|
#define BA0_DBC0 0x011c /* Host DMA Engine 0 Base Count */
|
|
#define BA0_DCA1 0x0120 /* Host DMA Engine 1 Current Address */
|
|
#define BA0_DCC1 0x0124 /* Host DMA Engine 1 Current Count */
|
|
#define BA0_DBA1 0x0128 /* Host DMA Engine 1 Base Address */
|
|
#define BA0_DBC1 0x012c /* Host DMA Engine 1 Base Count */
|
|
#define BA0_DCA2 0x0130 /* Host DMA Engine 2 Current Address */
|
|
#define BA0_DCC2 0x0134 /* Host DMA Engine 2 Current Count */
|
|
#define BA0_DBA2 0x0138 /* Host DMA Engine 2 Base Address */
|
|
#define BA0_DBC2 0x013c /* Host DMA Engine 2 Base Count */
|
|
#define BA0_DCA3 0x0140 /* Host DMA Engine 3 Current Address */
|
|
#define BA0_DCC3 0x0144 /* Host DMA Engine 3 Current Count */
|
|
#define BA0_DBA3 0x0148 /* Host DMA Engine 3 Base Address */
|
|
#define BA0_DBC3 0x014c /* Host DMA Engine 3 Base Count */
|
|
#define BA0_DMR0 0x0150 /* Host DMA Engine 0 Mode */
|
|
#define BA0_DCR0 0x0154 /* Host DMA Engine 0 Command */
|
|
#define BA0_DMR1 0x0158 /* Host DMA Engine 1 Mode */
|
|
#define BA0_DCR1 0x015c /* Host DMA Engine 1 Command */
|
|
#define BA0_DMR2 0x0160 /* Host DMA Engine 2 Mode */
|
|
#define BA0_DCR2 0x0164 /* Host DMA Engine 2 Command */
|
|
#define BA0_DMR3 0x0168 /* Host DMA Engine 3 Mode */
|
|
#define BA0_DCR3 0x016c /* Host DMA Engine 3 Command */
|
|
|
|
#define BA0_DMR_DMA (1<<29) /* Enable DMA mode */
|
|
#define BA0_DMR_POLL (1<<28) /* Enable poll mode */
|
|
#define BA0_DMR_TBC (1<<25) /* Transfer By Channel */
|
|
#define BA0_DMR_CBC (1<<24) /* Count By Channel (0 = frame resolution) */
|
|
#define BA0_DMR_SWAPC (1<<22) /* Swap Left/Right Channels */
|
|
#define BA0_DMR_SIZE20 (1<<20) /* Sample is 20-bit */
|
|
#define BA0_DMR_USIGN (1<<19) /* Unsigned */
|
|
#define BA0_DMR_BEND (1<<18) /* Big Endian */
|
|
#define BA0_DMR_MONO (1<<17) /* Mono */
|
|
#define BA0_DMR_SIZE8 (1<<16) /* Sample is 8-bit */
|
|
#define BA0_DMR_TYPE_DEMAND (0<<6)
|
|
#define BA0_DMR_TYPE_SINGLE (1<<6)
|
|
#define BA0_DMR_TYPE_BLOCK (2<<6)
|
|
#define BA0_DMR_TYPE_CASCADE (3<<6) /* Not supported */
|
|
#define BA0_DMR_DEC (1<<5) /* Access Increment (0) or Decrement (1) */
|
|
#define BA0_DMR_AUTO (1<<4) /* Auto-Initialize */
|
|
#define BA0_DMR_TR_VERIFY (0<<2) /* Verify Transfer */
|
|
#define BA0_DMR_TR_WRITE (1<<2) /* Write Transfer */
|
|
#define BA0_DMR_TR_READ (2<<2) /* Read Transfer */
|
|
|
|
#define BA0_DCR_HTCIE (1<<17) /* Half Terminal Count Interrupt */
|
|
#define BA0_DCR_TCIE (1<<16) /* Terminal Count Interrupt */
|
|
#define BA0_DCR_MSK (1<<0) /* DMA Mask bit */
|
|
|
|
#define BA0_FCR0 0x0180 /* FIFO Control 0 */
|
|
#define BA0_FCR1 0x0184 /* FIFO Control 1 */
|
|
#define BA0_FCR2 0x0188 /* FIFO Control 2 */
|
|
#define BA0_FCR3 0x018c /* FIFO Control 3 */
|
|
|
|
#define BA0_FCR_FEN (1<<31) /* FIFO Enable bit */
|
|
#define BA0_FCR_DACZ (1<<30) /* DAC Zero */
|
|
#define BA0_FCR_PSH (1<<29) /* Previous Sample Hold */
|
|
#define BA0_FCR_RS(x) (((x)&0x1f)<<24) /* Right Slot Mapping */
|
|
#define BA0_FCR_LS(x) (((x)&0x1f)<<16) /* Left Slot Mapping */
|
|
#define BA0_FCR_SZ(x) (((x)&0x7f)<<8) /* FIFO buffer size (in samples) */
|
|
#define BA0_FCR_OF(x) (((x)&0x7f)<<0) /* FIFO starting offset (in samples) */
|
|
|
|
#define BA0_FPDR0 0x0190 /* FIFO Polled Data 0 */
|
|
#define BA0_FPDR1 0x0194 /* FIFO Polled Data 1 */
|
|
#define BA0_FPDR2 0x0198 /* FIFO Polled Data 2 */
|
|
#define BA0_FPDR3 0x019c /* FIFO Polled Data 3 */
|
|
|
|
#define BA0_FCHS 0x020c /* FIFO Channel Status */
|
|
#define BA0_FCHS_RCO(x) (1<<(7+(((x)&3)<<3))) /* Right Channel Out */
|
|
#define BA0_FCHS_LCO(x) (1<<(6+(((x)&3)<<3))) /* Left Channel Out */
|
|
#define BA0_FCHS_MRP(x) (1<<(5+(((x)&3)<<3))) /* Move Read Pointer */
|
|
#define BA0_FCHS_FE(x) (1<<(4+(((x)&3)<<3))) /* FIFO Empty */
|
|
#define BA0_FCHS_FF(x) (1<<(3+(((x)&3)<<3))) /* FIFO Full */
|
|
#define BA0_FCHS_IOR(x) (1<<(2+(((x)&3)<<3))) /* Internal Overrun Flag */
|
|
#define BA0_FCHS_RCI(x) (1<<(1+(((x)&3)<<3))) /* Right Channel In */
|
|
#define BA0_FCHS_LCI(x) (1<<(0+(((x)&3)<<3))) /* Left Channel In */
|
|
|
|
#define BA0_FSIC0 0x0210 /* FIFO Status and Interrupt Control 0 */
|
|
#define BA0_FSIC1 0x0214 /* FIFO Status and Interrupt Control 1 */
|
|
#define BA0_FSIC2 0x0218 /* FIFO Status and Interrupt Control 2 */
|
|
#define BA0_FSIC3 0x021c /* FIFO Status and Interrupt Control 3 */
|
|
|
|
#define BA0_FSIC_FIC(x) (((x)&0x7f)<<24) /* FIFO Interrupt Count */
|
|
#define BA0_FSIC_FORIE (1<<23) /* FIFO OverRun Interrupt Enable */
|
|
#define BA0_FSIC_FURIE (1<<22) /* FIFO UnderRun Interrupt Enable */
|
|
#define BA0_FSIC_FSCIE (1<<16) /* FIFO Sample Count Interrupt Enable */
|
|
#define BA0_FSIC_FSC(x) (((x)&0x7f)<<8) /* FIFO Sample Count */
|
|
#define BA0_FSIC_FOR (1<<7) /* FIFO OverRun */
|
|
#define BA0_FSIC_FUR (1<<6) /* FIFO UnderRun */
|
|
#define BA0_FSIC_FSCR (1<<0) /* FIFO Sample Count Reached */
|
|
|
|
#define BA0_PMCS 0x0344 /* Power Management Control/Status */
|
|
#define BA0_CWPR 0x03e0 /* Configuration Write Protect */
|
|
|
|
#define BA0_EPPMC 0x03e4 /* Extended PCI Power Management Control */
|
|
#define BA0_EPPMC_FPDN (1<<14) /* Full Power DowN */
|
|
|
|
#define BA0_GPIOR 0x03e8 /* GPIO Pin Interface Register */
|
|
|
|
#define BA0_SPMC 0x03ec /* Serial Port Power Management Control (& ASDIN2 enable) */
|
|
#define BA0_SPMC_GIPPEN (1<<15) /* GP INT Primary PME# Enable */
|
|
#define BA0_SPMC_GISPEN (1<<14) /* GP INT Secondary PME# Enable */
|
|
#define BA0_SPMC_EESPD (1<<9) /* EEPROM Serial Port Disable */
|
|
#define BA0_SPMC_ASDI2E (1<<8) /* ASDIN2 Enable */
|
|
#define BA0_SPMC_ASDO (1<<7) /* Asynchronous ASDOUT Assertion */
|
|
#define BA0_SPMC_WUP2 (1<<3) /* Wakeup for Secondary Input */
|
|
#define BA0_SPMC_WUP1 (1<<2) /* Wakeup for Primary Input */
|
|
#define BA0_SPMC_ASYNC (1<<1) /* Asynchronous ASYNC Assertion */
|
|
#define BA0_SPMC_RSTN (1<<0) /* Reset Not! */
|
|
|
|
#define BA0_CFLR 0x03f0 /* Configuration Load Register (EEPROM or BIOS) */
|
|
#define BA0_CFLR_DEFAULT 0x00000001 /* CFLR must be in AC97 link mode */
|
|
#define BA0_IISR 0x03f4 /* ISA Interrupt Select */
|
|
#define BA0_TMS 0x03f8 /* Test Register */
|
|
#define BA0_SSVID 0x03fc /* Subsystem ID register */
|
|
|
|
#define BA0_CLKCR1 0x0400 /* Clock Control Register 1 */
|
|
#define BA0_CLKCR1_CLKON (1<<25) /* Read Only */
|
|
#define BA0_CLKCR1_DLLRDY (1<<24) /* DLL Ready */
|
|
#define BA0_CLKCR1_DLLOS (1<<6) /* DLL Output Select */
|
|
#define BA0_CLKCR1_SWCE (1<<5) /* Clock Enable */
|
|
#define BA0_CLKCR1_DLLP (1<<4) /* DLL PowerUp */
|
|
#define BA0_CLKCR1_DLLSS (((x)&3)<<3) /* DLL Source Select */
|
|
|
|
#define BA0_FRR 0x0410 /* Feature Reporting Register */
|
|
#define BA0_SLT12O 0x041c /* Slot 12 GPIO Output Register for AC-Link */
|
|
|
|
#define BA0_SERMC 0x0420 /* Serial Port Master Control */
|
|
#define BA0_SERMC_FCRN (1<<27) /* Force Codec Ready Not */
|
|
#define BA0_SERMC_ODSEN2 (1<<25) /* On-Demand Support Enable ASDIN2 */
|
|
#define BA0_SERMC_ODSEN1 (1<<24) /* On-Demand Support Enable ASDIN1 */
|
|
#define BA0_SERMC_SXLB (1<<21) /* ASDIN2 to ASDOUT Loopback */
|
|
#define BA0_SERMC_SLB (1<<20) /* ASDOUT to ASDIN2 Loopback */
|
|
#define BA0_SERMC_LOVF (1<<19) /* Loopback Output Valid Frame bit */
|
|
#define BA0_SERMC_TCID(x) (((x)&3)<<16) /* Target Secondary Codec ID */
|
|
#define BA0_SERMC_PXLB (5<<1) /* Primary Port External Loopback */
|
|
#define BA0_SERMC_PLB (4<<1) /* Primary Port Internal Loopback */
|
|
#define BA0_SERMC_PTC (7<<1) /* Port Timing Configuration */
|
|
#define BA0_SERMC_PTC_AC97 (1<<1) /* AC97 mode */
|
|
#define BA0_SERMC_MSPE (1<<0) /* Master Serial Port Enable */
|
|
|
|
#define BA0_SERC1 0x0428 /* Serial Port Configuration 1 */
|
|
#define BA0_SERC1_SO1F(x) (((x)&7)>>1) /* Primary Output Port Format */
|
|
#define BA0_SERC1_AC97 (1<<1)
|
|
#define BA0_SERC1_SO1EN (1<<0) /* Primary Output Port Enable */
|
|
|
|
#define BA0_SERC2 0x042c /* Serial Port Configuration 2 */
|
|
#define BA0_SERC2_SI1F(x) (((x)&7)>>1) /* Primary Input Port Format */
|
|
#define BA0_SERC2_AC97 (1<<1)
|
|
#define BA0_SERC2_SI1EN (1<<0) /* Primary Input Port Enable */
|
|
|
|
#define BA0_SLT12M 0x045c /* Slot 12 Monitor Register for Primary AC-Link */
|
|
|
|
#define BA0_ACCTL 0x0460 /* AC'97 Control */
|
|
#define BA0_ACCTL_TC (1<<6) /* Target Codec */
|
|
#define BA0_ACCTL_CRW (1<<4) /* 0=Write, 1=Read Command */
|
|
#define BA0_ACCTL_DCV (1<<3) /* Dynamic Command Valid */
|
|
#define BA0_ACCTL_VFRM (1<<2) /* Valid Frame */
|
|
#define BA0_ACCTL_ESYN (1<<1) /* Enable Sync */
|
|
|
|
#define BA0_ACSTS 0x0464 /* AC'97 Status */
|
|
#define BA0_ACSTS_VSTS (1<<1) /* Valid Status */
|
|
#define BA0_ACSTS_CRDY (1<<0) /* Codec Ready */
|
|
|
|
#define BA0_ACOSV 0x0468 /* AC'97 Output Slot Valid */
|
|
#define BA0_ACOSV_SLV(x) (1<<((x)-3))
|
|
|
|
#define BA0_ACCAD 0x046c /* AC'97 Command Address */
|
|
#define BA0_ACCDA 0x0470 /* AC'97 Command Data */
|
|
|
|
#define BA0_ACISV 0x0474 /* AC'97 Input Slot Valid */
|
|
#define BA0_ACISV_SLV(x) (1<<((x)-3))
|
|
|
|
#define BA0_ACSAD 0x0478 /* AC'97 Status Address */
|
|
#define BA0_ACSDA 0x047c /* AC'97 Status Data */
|
|
#define BA0_JSPT 0x0480 /* Joystick poll/trigger */
|
|
#define BA0_JSCTL 0x0484 /* Joystick control */
|
|
#define BA0_JSC1 0x0488 /* Joystick control */
|
|
#define BA0_JSC2 0x048c /* Joystick control */
|
|
#define BA0_JSIO 0x04a0
|
|
|
|
#define BA0_MIDCR 0x0490 /* MIDI Control */
|
|
#define BA0_MIDCR_MRST (1<<5) /* Reset MIDI Interface */
|
|
#define BA0_MIDCR_MLB (1<<4) /* MIDI Loop Back Enable */
|
|
#define BA0_MIDCR_TIE (1<<3) /* MIDI Transmuit Interrupt Enable */
|
|
#define BA0_MIDCR_RIE (1<<2) /* MIDI Receive Interrupt Enable */
|
|
#define BA0_MIDCR_RXE (1<<1) /* MIDI Receive Enable */
|
|
#define BA0_MIDCR_TXE (1<<0) /* MIDI Transmit Enable */
|
|
|
|
#define BA0_MIDCMD 0x0494 /* MIDI Command (wo) */
|
|
|
|
#define BA0_MIDSR 0x0494 /* MIDI Status (ro) */
|
|
#define BA0_MIDSR_RDA (1<<15) /* Sticky bit (RBE 1->0) */
|
|
#define BA0_MIDSR_TBE (1<<14) /* Sticky bit (TBF 0->1) */
|
|
#define BA0_MIDSR_RBE (1<<7) /* Receive Buffer Empty */
|
|
#define BA0_MIDSR_TBF (1<<6) /* Transmit Buffer Full */
|
|
|
|
#define BA0_MIDWP 0x0498 /* MIDI Write */
|
|
#define BA0_MIDRP 0x049c /* MIDI Read (ro) */
|
|
|
|
#define BA0_AODSD1 0x04a8 /* AC'97 On-Demand Slot Disable for primary link (ro) */
|
|
#define BA0_AODSD1_NDS(x) (1<<((x)-3))
|
|
|
|
#define BA0_AODSD2 0x04ac /* AC'97 On-Demand Slot Disable for secondary link (ro) */
|
|
#define BA0_AODSD2_NDS(x) (1<<((x)-3))
|
|
|
|
#define BA0_CFGI 0x04b0 /* Configure Interface (EEPROM interface) */
|
|
#define BA0_SLT12M2 0x04dc /* Slot 12 Monitor Register 2 for secondary AC-link */
|
|
#define BA0_ACSTS2 0x04e4 /* AC'97 Status Register 2 */
|
|
#define BA0_ACISV2 0x04f4 /* AC'97 Input Slot Valid Register 2 */
|
|
#define BA0_ACSAD2 0x04f8 /* AC'97 Status Address Register 2 */
|
|
#define BA0_ACSDA2 0x04fc /* AC'97 Status Data Register 2 */
|
|
#define BA0_FMSR 0x0730 /* FM Synthesis Status (ro) */
|
|
#define BA0_B0AP 0x0730 /* FM Bank 0 Address Port (wo) */
|
|
#define BA0_FMDP 0x0734 /* FM Data Port */
|
|
#define BA0_B1AP 0x0738 /* FM Bank 1 Address Port */
|
|
#define BA0_B1DP 0x073c /* FM Bank 1 Data Port */
|
|
|
|
#define BA0_SSPM 0x0740 /* Sound System Power Management */
|
|
#define BA0_SSPM_MIXEN (1<<6) /* Playback SRC + FM/Wavetable MIX */
|
|
#define BA0_SSPM_CSRCEN (1<<5) /* Capture Sample Rate Converter Enable */
|
|
#define BA0_SSPM_PSRCEN (1<<4) /* Playback Sample Rate Converter Enable */
|
|
#define BA0_SSPM_JSEN (1<<3) /* Joystick Enable */
|
|
#define BA0_SSPM_ACLEN (1<<2) /* Serial Port Engine and AC-Link Enable */
|
|
#define BA0_SSPM_FMEN (1<<1) /* FM Synthesis Block Enable */
|
|
|
|
#define BA0_DACSR 0x0744 /* DAC Sample Rate - Playback SRC */
|
|
#define BA0_ADCSR 0x0748 /* ADC Sample Rate - Capture SRC */
|
|
|
|
#define BA0_SSCR 0x074c /* Sound System Control Register */
|
|
#define BA0_SSCR_HVS1 (1<<23) /* Hardwave Volume Step (0=1,1=2) */
|
|
#define BA0_SSCR_MVCS (1<<19) /* Master Volume Codec Select */
|
|
#define BA0_SSCR_MVLD (1<<18) /* Master Volume Line Out Disable */
|
|
#define BA0_SSCR_MVAD (1<<17) /* Master Volume Alternate Out Disable */
|
|
#define BA0_SSCR_MVMD (1<<16) /* Master Volume Mono Out Disable */
|
|
#define BA0_SSCR_XLPSRC (1<<8) /* External SRC Loopback Mode */
|
|
#define BA0_SSCR_LPSRC (1<<7) /* SRC Loopback Mode */
|
|
#define BA0_SSCR_CDTX (1<<5) /* CD Transfer Data */
|
|
#define BA0_SSCR_HVC (1<<3) /* Harware Volume Control Enable */
|
|
|
|
#define BA0_FMLVC 0x0754 /* FM Synthesis Left Volume Control */
|
|
#define BA0_FMRVC 0x0758 /* FM Synthesis Right Volume Control */
|
|
#define BA0_SRCSA 0x075c /* SRC Slot Assignments */
|
|
#define BA0_PPLVC 0x0760 /* PCM Playback Left Volume Control */
|
|
#define BA0_PPRVC 0x0764 /* PCM Playback Right Volume Control */
|
|
#define BA0_PASR 0x0768 /* playback sample rate */
|
|
#define BA0_CASR 0x076C /* capture sample rate */
|
|
|
|
/* Source Slot Numbers - Playback */
|
|
#define SRCSLOT_LEFT_PCM_PLAYBACK 0
|
|
#define SRCSLOT_RIGHT_PCM_PLAYBACK 1
|
|
#define SRCSLOT_PHONE_LINE_1_DAC 2
|
|
#define SRCSLOT_CENTER_PCM_PLAYBACK 3
|
|
#define SRCSLOT_LEFT_SURROUND_PCM_PLAYBACK 4
|
|
#define SRCSLOT_RIGHT_SURROUND_PCM_PLAYBACK 5
|
|
#define SRCSLOT_LFE_PCM_PLAYBACK 6
|
|
#define SRCSLOT_PHONE_LINE_2_DAC 7
|
|
#define SRCSLOT_HEADSET_DAC 8
|
|
#define SRCSLOT_LEFT_WT 29 /* invalid for BA0_SRCSA */
|
|
#define SRCSLOT_RIGHT_WT 30 /* invalid for BA0_SRCSA */
|
|
|
|
/* Source Slot Numbers - Capture */
|
|
#define SRCSLOT_LEFT_PCM_RECORD 10
|
|
#define SRCSLOT_RIGHT_PCM_RECORD 11
|
|
#define SRCSLOT_PHONE_LINE_1_ADC 12
|
|
#define SRCSLOT_MIC_ADC 13
|
|
#define SRCSLOT_PHONE_LINE_2_ADC 17
|
|
#define SRCSLOT_HEADSET_ADC 18
|
|
#define SRCSLOT_SECONDARY_LEFT_PCM_RECORD 20
|
|
#define SRCSLOT_SECONDARY_RIGHT_PCM_RECORD 21
|
|
#define SRCSLOT_SECONDARY_PHONE_LINE_1_ADC 22
|
|
#define SRCSLOT_SECONDARY_MIC_ADC 23
|
|
#define SRCSLOT_SECONDARY_PHONE_LINE_2_ADC 27
|
|
#define SRCSLOT_SECONDARY_HEADSET_ADC 28
|
|
|
|
/* Source Slot Numbers - Others */
|
|
#define SRCSLOT_POWER_DOWN 31
|
|
|
|
/* MIDI modes */
|
|
#define CS4281_MODE_OUTPUT (1<<0)
|
|
#define CS4281_MODE_INPUT (1<<1)
|
|
|
|
/* joystick bits */
|
|
/* Bits for JSPT */
|
|
#define JSPT_CAX 0x00000001
|
|
#define JSPT_CAY 0x00000002
|
|
#define JSPT_CBX 0x00000004
|
|
#define JSPT_CBY 0x00000008
|
|
#define JSPT_BA1 0x00000010
|
|
#define JSPT_BA2 0x00000020
|
|
#define JSPT_BB1 0x00000040
|
|
#define JSPT_BB2 0x00000080
|
|
|
|
/* Bits for JSCTL */
|
|
#define JSCTL_SP_MASK 0x00000003
|
|
#define JSCTL_SP_SLOW 0x00000000
|
|
#define JSCTL_SP_MEDIUM_SLOW 0x00000001
|
|
#define JSCTL_SP_MEDIUM_FAST 0x00000002
|
|
#define JSCTL_SP_FAST 0x00000003
|
|
#define JSCTL_ARE 0x00000004
|
|
|
|
/* Data register pairs masks */
|
|
#define JSC1_Y1V_MASK 0x0000FFFF
|
|
#define JSC1_X1V_MASK 0xFFFF0000
|
|
#define JSC1_Y1V_SHIFT 0
|
|
#define JSC1_X1V_SHIFT 16
|
|
#define JSC2_Y2V_MASK 0x0000FFFF
|
|
#define JSC2_X2V_MASK 0xFFFF0000
|
|
#define JSC2_Y2V_SHIFT 0
|
|
#define JSC2_X2V_SHIFT 16
|
|
|
|
/* JS GPIO */
|
|
#define JSIO_DAX 0x00000001
|
|
#define JSIO_DAY 0x00000002
|
|
#define JSIO_DBX 0x00000004
|
|
#define JSIO_DBY 0x00000008
|
|
#define JSIO_AXOE 0x00000010
|
|
#define JSIO_AYOE 0x00000020
|
|
#define JSIO_BXOE 0x00000040
|
|
#define JSIO_BYOE 0x00000080
|
|
|
|
/*
|
|
*
|
|
*/
|
|
|
|
struct cs4281_dma {
|
|
struct snd_pcm_substream *substream;
|
|
unsigned int regDBA; /* offset to DBA register */
|
|
unsigned int regDCA; /* offset to DCA register */
|
|
unsigned int regDBC; /* offset to DBC register */
|
|
unsigned int regDCC; /* offset to DCC register */
|
|
unsigned int regDMR; /* offset to DMR register */
|
|
unsigned int regDCR; /* offset to DCR register */
|
|
unsigned int regHDSR; /* offset to HDSR register */
|
|
unsigned int regFCR; /* offset to FCR register */
|
|
unsigned int regFSIC; /* offset to FSIC register */
|
|
unsigned int valDMR; /* DMA mode */
|
|
unsigned int valDCR; /* DMA command */
|
|
unsigned int valFCR; /* FIFO control */
|
|
unsigned int fifo_offset; /* FIFO offset within BA1 */
|
|
unsigned char left_slot; /* FIFO left slot */
|
|
unsigned char right_slot; /* FIFO right slot */
|
|
int frag; /* period number */
|
|
};
|
|
|
|
#define SUSPEND_REGISTERS 20
|
|
|
|
struct cs4281 {
|
|
int irq;
|
|
|
|
void __iomem *ba0; /* virtual (accessible) address */
|
|
void __iomem *ba1; /* virtual (accessible) address */
|
|
unsigned long ba0_addr;
|
|
unsigned long ba1_addr;
|
|
|
|
int dual_codec;
|
|
|
|
struct snd_ac97_bus *ac97_bus;
|
|
struct snd_ac97 *ac97;
|
|
struct snd_ac97 *ac97_secondary;
|
|
|
|
struct pci_dev *pci;
|
|
struct snd_card *card;
|
|
struct snd_pcm *pcm;
|
|
struct snd_rawmidi *rmidi;
|
|
struct snd_rawmidi_substream *midi_input;
|
|
struct snd_rawmidi_substream *midi_output;
|
|
|
|
struct cs4281_dma dma[4];
|
|
|
|
unsigned char src_left_play_slot;
|
|
unsigned char src_right_play_slot;
|
|
unsigned char src_left_rec_slot;
|
|
unsigned char src_right_rec_slot;
|
|
|
|
unsigned int spurious_dhtc_irq;
|
|
unsigned int spurious_dtc_irq;
|
|
|
|
spinlock_t reg_lock;
|
|
unsigned int midcr;
|
|
unsigned int uartm;
|
|
|
|
struct gameport *gameport;
|
|
|
|
#ifdef CONFIG_PM
|
|
u32 suspend_regs[SUSPEND_REGISTERS];
|
|
#endif
|
|
|
|
};
|
|
|
|
static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id);
|
|
|
|
static struct pci_device_id snd_cs4281_ids[] = {
|
|
{ 0x1013, 0x6005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* CS4281 */
|
|
{ 0, }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, snd_cs4281_ids);
|
|
|
|
/*
|
|
* constants
|
|
*/
|
|
|
|
#define CS4281_FIFO_SIZE 32
|
|
|
|
/*
|
|
* common I/O routines
|
|
*/
|
|
|
|
static inline void snd_cs4281_pokeBA0(struct cs4281 *chip, unsigned long offset,
|
|
unsigned int val)
|
|
{
|
|
writel(val, chip->ba0 + offset);
|
|
}
|
|
|
|
static inline unsigned int snd_cs4281_peekBA0(struct cs4281 *chip, unsigned long offset)
|
|
{
|
|
return readl(chip->ba0 + offset);
|
|
}
|
|
|
|
static void snd_cs4281_ac97_write(struct snd_ac97 *ac97,
|
|
unsigned short reg, unsigned short val)
|
|
{
|
|
/*
|
|
* 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
|
|
* 2. Write ACCDA = Command Data Register = 470h for data to write to AC97
|
|
* 3. Write ACCTL = Control Register = 460h for initiating the write
|
|
* 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
|
|
* 5. if DCV not cleared, break and return error
|
|
*/
|
|
struct cs4281 *chip = ac97->private_data;
|
|
int count;
|
|
|
|
/*
|
|
* Setup the AC97 control registers on the CS461x to send the
|
|
* appropriate command to the AC97 to perform the read.
|
|
* ACCAD = Command Address Register = 46Ch
|
|
* ACCDA = Command Data Register = 470h
|
|
* ACCTL = Control Register = 460h
|
|
* set DCV - will clear when process completed
|
|
* reset CRW - Write command
|
|
* set VFRM - valid frame enabled
|
|
* set ESYN - ASYNC generation enabled
|
|
* set RSTN - ARST# inactive, AC97 codec not reset
|
|
*/
|
|
snd_cs4281_pokeBA0(chip, BA0_ACCAD, reg);
|
|
snd_cs4281_pokeBA0(chip, BA0_ACCDA, val);
|
|
snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_DCV | BA0_ACCTL_VFRM |
|
|
BA0_ACCTL_ESYN | (ac97->num ? BA0_ACCTL_TC : 0));
|
|
for (count = 0; count < 2000; count++) {
|
|
/*
|
|
* First, we want to wait for a short time.
|
|
*/
|
|
udelay(10);
|
|
/*
|
|
* Now, check to see if the write has completed.
|
|
* ACCTL = 460h, DCV should be reset by now and 460h = 07h
|
|
*/
|
|
if (!(snd_cs4281_peekBA0(chip, BA0_ACCTL) & BA0_ACCTL_DCV)) {
|
|
return;
|
|
}
|
|
}
|
|
snd_printk(KERN_ERR "AC'97 write problem, reg = 0x%x, val = 0x%x\n", reg, val);
|
|
}
|
|
|
|
static unsigned short snd_cs4281_ac97_read(struct snd_ac97 *ac97,
|
|
unsigned short reg)
|
|
{
|
|
struct cs4281 *chip = ac97->private_data;
|
|
int count;
|
|
unsigned short result;
|
|
// FIXME: volatile is necessary in the following due to a bug of
|
|
// some gcc versions
|
|
volatile int ac97_num = ((volatile struct snd_ac97 *)ac97)->num;
|
|
|
|
/*
|
|
* 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
|
|
* 2. Write ACCDA = Command Data Register = 470h for data to write to AC97
|
|
* 3. Write ACCTL = Control Register = 460h for initiating the write
|
|
* 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
|
|
* 5. if DCV not cleared, break and return error
|
|
* 6. Read ACSTS = Status Register = 464h, check VSTS bit
|
|
*/
|
|
|
|
snd_cs4281_peekBA0(chip, ac97_num ? BA0_ACSDA2 : BA0_ACSDA);
|
|
|
|
/*
|
|
* Setup the AC97 control registers on the CS461x to send the
|
|
* appropriate command to the AC97 to perform the read.
|
|
* ACCAD = Command Address Register = 46Ch
|
|
* ACCDA = Command Data Register = 470h
|
|
* ACCTL = Control Register = 460h
|
|
* set DCV - will clear when process completed
|
|
* set CRW - Read command
|
|
* set VFRM - valid frame enabled
|
|
* set ESYN - ASYNC generation enabled
|
|
* set RSTN - ARST# inactive, AC97 codec not reset
|
|
*/
|
|
|
|
snd_cs4281_pokeBA0(chip, BA0_ACCAD, reg);
|
|
snd_cs4281_pokeBA0(chip, BA0_ACCDA, 0);
|
|
snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_DCV | BA0_ACCTL_CRW |
|
|
BA0_ACCTL_VFRM | BA0_ACCTL_ESYN |
|
|
(ac97_num ? BA0_ACCTL_TC : 0));
|
|
|
|
|
|
/*
|
|
* Wait for the read to occur.
|
|
*/
|
|
for (count = 0; count < 500; count++) {
|
|
/*
|
|
* First, we want to wait for a short time.
|
|
*/
|
|
udelay(10);
|
|
/*
|
|
* Now, check to see if the read has completed.
|
|
* ACCTL = 460h, DCV should be reset by now and 460h = 17h
|
|
*/
|
|
if (!(snd_cs4281_peekBA0(chip, BA0_ACCTL) & BA0_ACCTL_DCV))
|
|
goto __ok1;
|
|
}
|
|
|
|
snd_printk(KERN_ERR "AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg);
|
|
result = 0xffff;
|
|
goto __end;
|
|
|
|
__ok1:
|
|
/*
|
|
* Wait for the valid status bit to go active.
|
|
*/
|
|
for (count = 0; count < 100; count++) {
|
|
/*
|
|
* Read the AC97 status register.
|
|
* ACSTS = Status Register = 464h
|
|
* VSTS - Valid Status
|
|
*/
|
|
if (snd_cs4281_peekBA0(chip, ac97_num ? BA0_ACSTS2 : BA0_ACSTS) & BA0_ACSTS_VSTS)
|
|
goto __ok2;
|
|
udelay(10);
|
|
}
|
|
|
|
snd_printk(KERN_ERR "AC'97 read problem (ACSTS_VSTS), reg = 0x%x\n", reg);
|
|
result = 0xffff;
|
|
goto __end;
|
|
|
|
__ok2:
|
|
/*
|
|
* Read the data returned from the AC97 register.
|
|
* ACSDA = Status Data Register = 474h
|
|
*/
|
|
result = snd_cs4281_peekBA0(chip, ac97_num ? BA0_ACSDA2 : BA0_ACSDA);
|
|
|
|
__end:
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* PCM part
|
|
*/
|
|
|
|
static int snd_cs4281_trigger(struct snd_pcm_substream *substream, int cmd)
|
|
{
|
|
struct cs4281_dma *dma = substream->runtime->private_data;
|
|
struct cs4281 *chip = snd_pcm_substream_chip(substream);
|
|
|
|
spin_lock(&chip->reg_lock);
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
|
|
dma->valDCR |= BA0_DCR_MSK;
|
|
dma->valFCR |= BA0_FCR_FEN;
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
|
|
dma->valDCR &= ~BA0_DCR_MSK;
|
|
dma->valFCR &= ~BA0_FCR_FEN;
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
case SNDRV_PCM_TRIGGER_RESUME:
|
|
snd_cs4281_pokeBA0(chip, dma->regDMR, dma->valDMR & ~BA0_DMR_DMA);
|
|
dma->valDMR |= BA0_DMR_DMA;
|
|
dma->valDCR &= ~BA0_DCR_MSK;
|
|
dma->valFCR |= BA0_FCR_FEN;
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
case SNDRV_PCM_TRIGGER_SUSPEND:
|
|
dma->valDMR &= ~(BA0_DMR_DMA|BA0_DMR_POLL);
|
|
dma->valDCR |= BA0_DCR_MSK;
|
|
dma->valFCR &= ~BA0_FCR_FEN;
|
|
/* Leave wave playback FIFO enabled for FM */
|
|
if (dma->regFCR != BA0_FCR0)
|
|
dma->valFCR &= ~BA0_FCR_FEN;
|
|
break;
|
|
default:
|
|
spin_unlock(&chip->reg_lock);
|
|
return -EINVAL;
|
|
}
|
|
snd_cs4281_pokeBA0(chip, dma->regDMR, dma->valDMR);
|
|
snd_cs4281_pokeBA0(chip, dma->regFCR, dma->valFCR);
|
|
snd_cs4281_pokeBA0(chip, dma->regDCR, dma->valDCR);
|
|
spin_unlock(&chip->reg_lock);
|
|
return 0;
|
|
}
|
|
|
|
static unsigned int snd_cs4281_rate(unsigned int rate, unsigned int *real_rate)
|
|
{
|
|
unsigned int val = ~0;
|
|
|
|
if (real_rate)
|
|
*real_rate = rate;
|
|
/* special "hardcoded" rates */
|
|
switch (rate) {
|
|
case 8000: return 5;
|
|
case 11025: return 4;
|
|
case 16000: return 3;
|
|
case 22050: return 2;
|
|
case 44100: return 1;
|
|
case 48000: return 0;
|
|
default:
|
|
goto __variable;
|
|
}
|
|
__variable:
|
|
val = 1536000 / rate;
|
|
if (real_rate)
|
|
*real_rate = 1536000 / val;
|
|
return val;
|
|
}
|
|
|
|
static void snd_cs4281_mode(struct cs4281 *chip, struct cs4281_dma *dma,
|
|
struct snd_pcm_runtime *runtime,
|
|
int capture, int src)
|
|
{
|
|
int rec_mono;
|
|
|
|
dma->valDMR = BA0_DMR_TYPE_SINGLE | BA0_DMR_AUTO |
|
|
(capture ? BA0_DMR_TR_WRITE : BA0_DMR_TR_READ);
|
|
if (runtime->channels == 1)
|
|
dma->valDMR |= BA0_DMR_MONO;
|
|
if (snd_pcm_format_unsigned(runtime->format) > 0)
|
|
dma->valDMR |= BA0_DMR_USIGN;
|
|
if (snd_pcm_format_big_endian(runtime->format) > 0)
|
|
dma->valDMR |= BA0_DMR_BEND;
|
|
switch (snd_pcm_format_width(runtime->format)) {
|
|
case 8: dma->valDMR |= BA0_DMR_SIZE8;
|
|
if (runtime->channels == 1)
|
|
dma->valDMR |= BA0_DMR_SWAPC;
|
|
break;
|
|
case 32: dma->valDMR |= BA0_DMR_SIZE20; break;
|
|
}
|
|
dma->frag = 0; /* for workaround */
|
|
dma->valDCR = BA0_DCR_TCIE | BA0_DCR_MSK;
|
|
if (runtime->buffer_size != runtime->period_size)
|
|
dma->valDCR |= BA0_DCR_HTCIE;
|
|
/* Initialize DMA */
|
|
snd_cs4281_pokeBA0(chip, dma->regDBA, runtime->dma_addr);
|
|
snd_cs4281_pokeBA0(chip, dma->regDBC, runtime->buffer_size - 1);
|
|
rec_mono = (chip->dma[1].valDMR & BA0_DMR_MONO) == BA0_DMR_MONO;
|
|
snd_cs4281_pokeBA0(chip, BA0_SRCSA, (chip->src_left_play_slot << 0) |
|
|
(chip->src_right_play_slot << 8) |
|
|
(chip->src_left_rec_slot << 16) |
|
|
((rec_mono ? 31 : chip->src_right_rec_slot) << 24));
|
|
if (!src)
|
|
goto __skip_src;
|
|
if (!capture) {
|
|
if (dma->left_slot == chip->src_left_play_slot) {
|
|
unsigned int val = snd_cs4281_rate(runtime->rate, NULL);
|
|
snd_assert(dma->right_slot == chip->src_right_play_slot, );
|
|
snd_cs4281_pokeBA0(chip, BA0_DACSR, val);
|
|
}
|
|
} else {
|
|
if (dma->left_slot == chip->src_left_rec_slot) {
|
|
unsigned int val = snd_cs4281_rate(runtime->rate, NULL);
|
|
snd_assert(dma->right_slot == chip->src_right_rec_slot, );
|
|
snd_cs4281_pokeBA0(chip, BA0_ADCSR, val);
|
|
}
|
|
}
|
|
__skip_src:
|
|
/* Deactivate wave playback FIFO before changing slot assignments */
|
|
if (dma->regFCR == BA0_FCR0)
|
|
snd_cs4281_pokeBA0(chip, dma->regFCR, snd_cs4281_peekBA0(chip, dma->regFCR) & ~BA0_FCR_FEN);
|
|
/* Initialize FIFO */
|
|
dma->valFCR = BA0_FCR_LS(dma->left_slot) |
|
|
BA0_FCR_RS(capture && (dma->valDMR & BA0_DMR_MONO) ? 31 : dma->right_slot) |
|
|
BA0_FCR_SZ(CS4281_FIFO_SIZE) |
|
|
BA0_FCR_OF(dma->fifo_offset);
|
|
snd_cs4281_pokeBA0(chip, dma->regFCR, dma->valFCR | (capture ? BA0_FCR_PSH : 0));
|
|
/* Activate FIFO again for FM playback */
|
|
if (dma->regFCR == BA0_FCR0)
|
|
snd_cs4281_pokeBA0(chip, dma->regFCR, dma->valFCR | BA0_FCR_FEN);
|
|
/* Clear FIFO Status and Interrupt Control Register */
|
|
snd_cs4281_pokeBA0(chip, dma->regFSIC, 0);
|
|
}
|
|
|
|
static int snd_cs4281_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *hw_params)
|
|
{
|
|
return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
|
|
}
|
|
|
|
static int snd_cs4281_hw_free(struct snd_pcm_substream *substream)
|
|
{
|
|
return snd_pcm_lib_free_pages(substream);
|
|
}
|
|
|
|
static int snd_cs4281_playback_prepare(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct cs4281_dma *dma = runtime->private_data;
|
|
struct cs4281 *chip = snd_pcm_substream_chip(substream);
|
|
|
|
spin_lock_irq(&chip->reg_lock);
|
|
snd_cs4281_mode(chip, dma, runtime, 0, 1);
|
|
spin_unlock_irq(&chip->reg_lock);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4281_capture_prepare(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct cs4281_dma *dma = runtime->private_data;
|
|
struct cs4281 *chip = snd_pcm_substream_chip(substream);
|
|
|
|
spin_lock_irq(&chip->reg_lock);
|
|
snd_cs4281_mode(chip, dma, runtime, 1, 1);
|
|
spin_unlock_irq(&chip->reg_lock);
|
|
return 0;
|
|
}
|
|
|
|
static snd_pcm_uframes_t snd_cs4281_pointer(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct cs4281_dma *dma = runtime->private_data;
|
|
struct cs4281 *chip = snd_pcm_substream_chip(substream);
|
|
|
|
// printk("DCC = 0x%x, buffer_size = 0x%x, jiffies = %li\n", snd_cs4281_peekBA0(chip, dma->regDCC), runtime->buffer_size, jiffies);
|
|
return runtime->buffer_size -
|
|
snd_cs4281_peekBA0(chip, dma->regDCC) - 1;
|
|
}
|
|
|
|
static struct snd_pcm_hardware snd_cs4281_playback =
|
|
{
|
|
.info = SNDRV_PCM_INFO_MMAP |
|
|
SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_MMAP_VALID |
|
|
SNDRV_PCM_INFO_PAUSE |
|
|
SNDRV_PCM_INFO_RESUME,
|
|
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
|
|
SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_S16_LE |
|
|
SNDRV_PCM_FMTBIT_U16_BE | SNDRV_PCM_FMTBIT_S16_BE |
|
|
SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_S32_LE |
|
|
SNDRV_PCM_FMTBIT_U32_BE | SNDRV_PCM_FMTBIT_S32_BE,
|
|
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
|
|
.rate_min = 4000,
|
|
.rate_max = 48000,
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.buffer_bytes_max = (512*1024),
|
|
.period_bytes_min = 64,
|
|
.period_bytes_max = (512*1024),
|
|
.periods_min = 1,
|
|
.periods_max = 2,
|
|
.fifo_size = CS4281_FIFO_SIZE,
|
|
};
|
|
|
|
static struct snd_pcm_hardware snd_cs4281_capture =
|
|
{
|
|
.info = SNDRV_PCM_INFO_MMAP |
|
|
SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_MMAP_VALID |
|
|
SNDRV_PCM_INFO_PAUSE |
|
|
SNDRV_PCM_INFO_RESUME,
|
|
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
|
|
SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_S16_LE |
|
|
SNDRV_PCM_FMTBIT_U16_BE | SNDRV_PCM_FMTBIT_S16_BE |
|
|
SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_S32_LE |
|
|
SNDRV_PCM_FMTBIT_U32_BE | SNDRV_PCM_FMTBIT_S32_BE,
|
|
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
|
|
.rate_min = 4000,
|
|
.rate_max = 48000,
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.buffer_bytes_max = (512*1024),
|
|
.period_bytes_min = 64,
|
|
.period_bytes_max = (512*1024),
|
|
.periods_min = 1,
|
|
.periods_max = 2,
|
|
.fifo_size = CS4281_FIFO_SIZE,
|
|
};
|
|
|
|
static int snd_cs4281_playback_open(struct snd_pcm_substream *substream)
|
|
{
|
|
struct cs4281 *chip = snd_pcm_substream_chip(substream);
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct cs4281_dma *dma;
|
|
|
|
dma = &chip->dma[0];
|
|
dma->substream = substream;
|
|
dma->left_slot = 0;
|
|
dma->right_slot = 1;
|
|
runtime->private_data = dma;
|
|
runtime->hw = snd_cs4281_playback;
|
|
/* should be detected from the AC'97 layer, but it seems
|
|
that although CS4297A rev B reports 18-bit ADC resolution,
|
|
samples are 20-bit */
|
|
snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4281_capture_open(struct snd_pcm_substream *substream)
|
|
{
|
|
struct cs4281 *chip = snd_pcm_substream_chip(substream);
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct cs4281_dma *dma;
|
|
|
|
dma = &chip->dma[1];
|
|
dma->substream = substream;
|
|
dma->left_slot = 10;
|
|
dma->right_slot = 11;
|
|
runtime->private_data = dma;
|
|
runtime->hw = snd_cs4281_capture;
|
|
/* should be detected from the AC'97 layer, but it seems
|
|
that although CS4297A rev B reports 18-bit ADC resolution,
|
|
samples are 20-bit */
|
|
snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4281_playback_close(struct snd_pcm_substream *substream)
|
|
{
|
|
struct cs4281_dma *dma = substream->runtime->private_data;
|
|
|
|
dma->substream = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4281_capture_close(struct snd_pcm_substream *substream)
|
|
{
|
|
struct cs4281_dma *dma = substream->runtime->private_data;
|
|
|
|
dma->substream = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_pcm_ops snd_cs4281_playback_ops = {
|
|
.open = snd_cs4281_playback_open,
|
|
.close = snd_cs4281_playback_close,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
.hw_params = snd_cs4281_hw_params,
|
|
.hw_free = snd_cs4281_hw_free,
|
|
.prepare = snd_cs4281_playback_prepare,
|
|
.trigger = snd_cs4281_trigger,
|
|
.pointer = snd_cs4281_pointer,
|
|
};
|
|
|
|
static struct snd_pcm_ops snd_cs4281_capture_ops = {
|
|
.open = snd_cs4281_capture_open,
|
|
.close = snd_cs4281_capture_close,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
.hw_params = snd_cs4281_hw_params,
|
|
.hw_free = snd_cs4281_hw_free,
|
|
.prepare = snd_cs4281_capture_prepare,
|
|
.trigger = snd_cs4281_trigger,
|
|
.pointer = snd_cs4281_pointer,
|
|
};
|
|
|
|
static int __devinit snd_cs4281_pcm(struct cs4281 * chip, int device,
|
|
struct snd_pcm ** rpcm)
|
|
{
|
|
struct snd_pcm *pcm;
|
|
int err;
|
|
|
|
if (rpcm)
|
|
*rpcm = NULL;
|
|
err = snd_pcm_new(chip->card, "CS4281", device, 1, 1, &pcm);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4281_playback_ops);
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs4281_capture_ops);
|
|
|
|
pcm->private_data = chip;
|
|
pcm->info_flags = 0;
|
|
strcpy(pcm->name, "CS4281");
|
|
chip->pcm = pcm;
|
|
|
|
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
|
|
snd_dma_pci_data(chip->pci), 64*1024, 512*1024);
|
|
|
|
if (rpcm)
|
|
*rpcm = pcm;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Mixer section
|
|
*/
|
|
|
|
#define CS_VOL_MASK 0x1f
|
|
|
|
static int snd_cs4281_info_volume(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = 2;
|
|
uinfo->value.integer.min = 0;
|
|
uinfo->value.integer.max = CS_VOL_MASK;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4281_get_volume(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct cs4281 *chip = snd_kcontrol_chip(kcontrol);
|
|
int regL = (kcontrol->private_value >> 16) & 0xffff;
|
|
int regR = kcontrol->private_value & 0xffff;
|
|
int volL, volR;
|
|
|
|
volL = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regL) & CS_VOL_MASK);
|
|
volR = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regR) & CS_VOL_MASK);
|
|
|
|
ucontrol->value.integer.value[0] = volL;
|
|
ucontrol->value.integer.value[1] = volR;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4281_put_volume(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct cs4281 *chip = snd_kcontrol_chip(kcontrol);
|
|
int change = 0;
|
|
int regL = (kcontrol->private_value >> 16) & 0xffff;
|
|
int regR = kcontrol->private_value & 0xffff;
|
|
int volL, volR;
|
|
|
|
volL = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regL) & CS_VOL_MASK);
|
|
volR = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regR) & CS_VOL_MASK);
|
|
|
|
if (ucontrol->value.integer.value[0] != volL) {
|
|
volL = CS_VOL_MASK - (ucontrol->value.integer.value[0] & CS_VOL_MASK);
|
|
snd_cs4281_pokeBA0(chip, regL, volL);
|
|
change = 1;
|
|
}
|
|
if (ucontrol->value.integer.value[1] != volR) {
|
|
volR = CS_VOL_MASK - (ucontrol->value.integer.value[1] & CS_VOL_MASK);
|
|
snd_cs4281_pokeBA0(chip, regR, volR);
|
|
change = 1;
|
|
}
|
|
return change;
|
|
}
|
|
|
|
static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -4650, 150, 0);
|
|
|
|
static struct snd_kcontrol_new snd_cs4281_fm_vol =
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "Synth Playback Volume",
|
|
.info = snd_cs4281_info_volume,
|
|
.get = snd_cs4281_get_volume,
|
|
.put = snd_cs4281_put_volume,
|
|
.private_value = ((BA0_FMLVC << 16) | BA0_FMRVC),
|
|
.tlv = { .p = db_scale_dsp },
|
|
};
|
|
|
|
static struct snd_kcontrol_new snd_cs4281_pcm_vol =
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "PCM Stream Playback Volume",
|
|
.info = snd_cs4281_info_volume,
|
|
.get = snd_cs4281_get_volume,
|
|
.put = snd_cs4281_put_volume,
|
|
.private_value = ((BA0_PPLVC << 16) | BA0_PPRVC),
|
|
.tlv = { .p = db_scale_dsp },
|
|
};
|
|
|
|
static void snd_cs4281_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
|
|
{
|
|
struct cs4281 *chip = bus->private_data;
|
|
chip->ac97_bus = NULL;
|
|
}
|
|
|
|
static void snd_cs4281_mixer_free_ac97(struct snd_ac97 *ac97)
|
|
{
|
|
struct cs4281 *chip = ac97->private_data;
|
|
if (ac97->num)
|
|
chip->ac97_secondary = NULL;
|
|
else
|
|
chip->ac97 = NULL;
|
|
}
|
|
|
|
static int __devinit snd_cs4281_mixer(struct cs4281 * chip)
|
|
{
|
|
struct snd_card *card = chip->card;
|
|
struct snd_ac97_template ac97;
|
|
int err;
|
|
static struct snd_ac97_bus_ops ops = {
|
|
.write = snd_cs4281_ac97_write,
|
|
.read = snd_cs4281_ac97_read,
|
|
};
|
|
|
|
if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0)
|
|
return err;
|
|
chip->ac97_bus->private_free = snd_cs4281_mixer_free_ac97_bus;
|
|
|
|
memset(&ac97, 0, sizeof(ac97));
|
|
ac97.private_data = chip;
|
|
ac97.private_free = snd_cs4281_mixer_free_ac97;
|
|
if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
|
|
return err;
|
|
if (chip->dual_codec) {
|
|
ac97.num = 1;
|
|
if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_secondary)) < 0)
|
|
return err;
|
|
}
|
|
if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4281_fm_vol, chip))) < 0)
|
|
return err;
|
|
if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4281_pcm_vol, chip))) < 0)
|
|
return err;
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* proc interface
|
|
*/
|
|
|
|
static void snd_cs4281_proc_read(struct snd_info_entry *entry,
|
|
struct snd_info_buffer *buffer)
|
|
{
|
|
struct cs4281 *chip = entry->private_data;
|
|
|
|
snd_iprintf(buffer, "Cirrus Logic CS4281\n\n");
|
|
snd_iprintf(buffer, "Spurious half IRQs : %u\n", chip->spurious_dhtc_irq);
|
|
snd_iprintf(buffer, "Spurious end IRQs : %u\n", chip->spurious_dtc_irq);
|
|
}
|
|
|
|
static long snd_cs4281_BA0_read(struct snd_info_entry *entry,
|
|
void *file_private_data,
|
|
struct file *file, char __user *buf,
|
|
unsigned long count, unsigned long pos)
|
|
{
|
|
long size;
|
|
struct cs4281 *chip = entry->private_data;
|
|
|
|
size = count;
|
|
if (pos + size > CS4281_BA0_SIZE)
|
|
size = (long)CS4281_BA0_SIZE - pos;
|
|
if (size > 0) {
|
|
if (copy_to_user_fromio(buf, chip->ba0 + pos, size))
|
|
return -EFAULT;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
static long snd_cs4281_BA1_read(struct snd_info_entry *entry,
|
|
void *file_private_data,
|
|
struct file *file, char __user *buf,
|
|
unsigned long count, unsigned long pos)
|
|
{
|
|
long size;
|
|
struct cs4281 *chip = entry->private_data;
|
|
|
|
size = count;
|
|
if (pos + size > CS4281_BA1_SIZE)
|
|
size = (long)CS4281_BA1_SIZE - pos;
|
|
if (size > 0) {
|
|
if (copy_to_user_fromio(buf, chip->ba1 + pos, size))
|
|
return -EFAULT;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
static struct snd_info_entry_ops snd_cs4281_proc_ops_BA0 = {
|
|
.read = snd_cs4281_BA0_read,
|
|
};
|
|
|
|
static struct snd_info_entry_ops snd_cs4281_proc_ops_BA1 = {
|
|
.read = snd_cs4281_BA1_read,
|
|
};
|
|
|
|
static void __devinit snd_cs4281_proc_init(struct cs4281 * chip)
|
|
{
|
|
struct snd_info_entry *entry;
|
|
|
|
if (! snd_card_proc_new(chip->card, "cs4281", &entry))
|
|
snd_info_set_text_ops(entry, chip, snd_cs4281_proc_read);
|
|
if (! snd_card_proc_new(chip->card, "cs4281_BA0", &entry)) {
|
|
entry->content = SNDRV_INFO_CONTENT_DATA;
|
|
entry->private_data = chip;
|
|
entry->c.ops = &snd_cs4281_proc_ops_BA0;
|
|
entry->size = CS4281_BA0_SIZE;
|
|
}
|
|
if (! snd_card_proc_new(chip->card, "cs4281_BA1", &entry)) {
|
|
entry->content = SNDRV_INFO_CONTENT_DATA;
|
|
entry->private_data = chip;
|
|
entry->c.ops = &snd_cs4281_proc_ops_BA1;
|
|
entry->size = CS4281_BA1_SIZE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* joystick support
|
|
*/
|
|
|
|
#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
|
|
|
|
static void snd_cs4281_gameport_trigger(struct gameport *gameport)
|
|
{
|
|
struct cs4281 *chip = gameport_get_port_data(gameport);
|
|
|
|
snd_assert(chip, return);
|
|
snd_cs4281_pokeBA0(chip, BA0_JSPT, 0xff);
|
|
}
|
|
|
|
static unsigned char snd_cs4281_gameport_read(struct gameport *gameport)
|
|
{
|
|
struct cs4281 *chip = gameport_get_port_data(gameport);
|
|
|
|
snd_assert(chip, return 0);
|
|
return snd_cs4281_peekBA0(chip, BA0_JSPT);
|
|
}
|
|
|
|
#ifdef COOKED_MODE
|
|
static int snd_cs4281_gameport_cooked_read(struct gameport *gameport,
|
|
int *axes, int *buttons)
|
|
{
|
|
struct cs4281 *chip = gameport_get_port_data(gameport);
|
|
unsigned js1, js2, jst;
|
|
|
|
snd_assert(chip, return 0);
|
|
|
|
js1 = snd_cs4281_peekBA0(chip, BA0_JSC1);
|
|
js2 = snd_cs4281_peekBA0(chip, BA0_JSC2);
|
|
jst = snd_cs4281_peekBA0(chip, BA0_JSPT);
|
|
|
|
*buttons = (~jst >> 4) & 0x0F;
|
|
|
|
axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF;
|
|
axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF;
|
|
axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF;
|
|
axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF;
|
|
|
|
for (jst = 0; jst < 4; ++jst)
|
|
if (axes[jst] == 0xFFFF) axes[jst] = -1;
|
|
return 0;
|
|
}
|
|
#else
|
|
#define snd_cs4281_gameport_cooked_read NULL
|
|
#endif
|
|
|
|
static int snd_cs4281_gameport_open(struct gameport *gameport, int mode)
|
|
{
|
|
switch (mode) {
|
|
#ifdef COOKED_MODE
|
|
case GAMEPORT_MODE_COOKED:
|
|
return 0;
|
|
#endif
|
|
case GAMEPORT_MODE_RAW:
|
|
return 0;
|
|
default:
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int __devinit snd_cs4281_create_gameport(struct cs4281 *chip)
|
|
{
|
|
struct gameport *gp;
|
|
|
|
chip->gameport = gp = gameport_allocate_port();
|
|
if (!gp) {
|
|
printk(KERN_ERR "cs4281: cannot allocate memory for gameport\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
gameport_set_name(gp, "CS4281 Gameport");
|
|
gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
|
|
gameport_set_dev_parent(gp, &chip->pci->dev);
|
|
gp->open = snd_cs4281_gameport_open;
|
|
gp->read = snd_cs4281_gameport_read;
|
|
gp->trigger = snd_cs4281_gameport_trigger;
|
|
gp->cooked_read = snd_cs4281_gameport_cooked_read;
|
|
gameport_set_port_data(gp, chip);
|
|
|
|
snd_cs4281_pokeBA0(chip, BA0_JSIO, 0xFF); // ?
|
|
snd_cs4281_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW);
|
|
|
|
gameport_register_port(gp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void snd_cs4281_free_gameport(struct cs4281 *chip)
|
|
{
|
|
if (chip->gameport) {
|
|
gameport_unregister_port(chip->gameport);
|
|
chip->gameport = NULL;
|
|
}
|
|
}
|
|
#else
|
|
static inline int snd_cs4281_create_gameport(struct cs4281 *chip) { return -ENOSYS; }
|
|
static inline void snd_cs4281_free_gameport(struct cs4281 *chip) { }
|
|
#endif /* CONFIG_GAMEPORT || (MODULE && CONFIG_GAMEPORT_MODULE) */
|
|
|
|
static int snd_cs4281_free(struct cs4281 *chip)
|
|
{
|
|
snd_cs4281_free_gameport(chip);
|
|
|
|
if (chip->irq >= 0)
|
|
synchronize_irq(chip->irq);
|
|
|
|
/* Mask interrupts */
|
|
snd_cs4281_pokeBA0(chip, BA0_HIMR, 0x7fffffff);
|
|
/* Stop the DLL Clock logic. */
|
|
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, 0);
|
|
/* Sound System Power Management - Turn Everything OFF */
|
|
snd_cs4281_pokeBA0(chip, BA0_SSPM, 0);
|
|
/* PCI interface - D3 state */
|
|
pci_set_power_state(chip->pci, 3);
|
|
|
|
if (chip->irq >= 0)
|
|
free_irq(chip->irq, chip);
|
|
if (chip->ba0)
|
|
iounmap(chip->ba0);
|
|
if (chip->ba1)
|
|
iounmap(chip->ba1);
|
|
pci_release_regions(chip->pci);
|
|
pci_disable_device(chip->pci);
|
|
|
|
kfree(chip);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4281_dev_free(struct snd_device *device)
|
|
{
|
|
struct cs4281 *chip = device->device_data;
|
|
return snd_cs4281_free(chip);
|
|
}
|
|
|
|
static int snd_cs4281_chip_init(struct cs4281 *chip); /* defined below */
|
|
|
|
static int __devinit snd_cs4281_create(struct snd_card *card,
|
|
struct pci_dev *pci,
|
|
struct cs4281 ** rchip,
|
|
int dual_codec)
|
|
{
|
|
struct cs4281 *chip;
|
|
unsigned int tmp;
|
|
int err;
|
|
static struct snd_device_ops ops = {
|
|
.dev_free = snd_cs4281_dev_free,
|
|
};
|
|
|
|
*rchip = NULL;
|
|
if ((err = pci_enable_device(pci)) < 0)
|
|
return err;
|
|
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
|
|
if (chip == NULL) {
|
|
pci_disable_device(pci);
|
|
return -ENOMEM;
|
|
}
|
|
spin_lock_init(&chip->reg_lock);
|
|
chip->card = card;
|
|
chip->pci = pci;
|
|
chip->irq = -1;
|
|
pci_set_master(pci);
|
|
if (dual_codec < 0 || dual_codec > 3) {
|
|
snd_printk(KERN_ERR "invalid dual_codec option %d\n", dual_codec);
|
|
dual_codec = 0;
|
|
}
|
|
chip->dual_codec = dual_codec;
|
|
|
|
if ((err = pci_request_regions(pci, "CS4281")) < 0) {
|
|
kfree(chip);
|
|
pci_disable_device(pci);
|
|
return err;
|
|
}
|
|
chip->ba0_addr = pci_resource_start(pci, 0);
|
|
chip->ba1_addr = pci_resource_start(pci, 1);
|
|
|
|
chip->ba0 = ioremap_nocache(chip->ba0_addr, pci_resource_len(pci, 0));
|
|
chip->ba1 = ioremap_nocache(chip->ba1_addr, pci_resource_len(pci, 1));
|
|
if (!chip->ba0 || !chip->ba1) {
|
|
snd_cs4281_free(chip);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (request_irq(pci->irq, snd_cs4281_interrupt, IRQF_SHARED,
|
|
"CS4281", chip)) {
|
|
snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
|
|
snd_cs4281_free(chip);
|
|
return -ENOMEM;
|
|
}
|
|
chip->irq = pci->irq;
|
|
|
|
tmp = snd_cs4281_chip_init(chip);
|
|
if (tmp) {
|
|
snd_cs4281_free(chip);
|
|
return tmp;
|
|
}
|
|
|
|
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
|
|
snd_cs4281_free(chip);
|
|
return err;
|
|
}
|
|
|
|
snd_cs4281_proc_init(chip);
|
|
|
|
snd_card_set_dev(card, &pci->dev);
|
|
|
|
*rchip = chip;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4281_chip_init(struct cs4281 *chip)
|
|
{
|
|
unsigned int tmp;
|
|
unsigned long end_time;
|
|
int retry_count = 2;
|
|
|
|
/* Having EPPMC.FPDN=1 prevent proper chip initialisation */
|
|
tmp = snd_cs4281_peekBA0(chip, BA0_EPPMC);
|
|
if (tmp & BA0_EPPMC_FPDN)
|
|
snd_cs4281_pokeBA0(chip, BA0_EPPMC, tmp & ~BA0_EPPMC_FPDN);
|
|
|
|
__retry:
|
|
tmp = snd_cs4281_peekBA0(chip, BA0_CFLR);
|
|
if (tmp != BA0_CFLR_DEFAULT) {
|
|
snd_cs4281_pokeBA0(chip, BA0_CFLR, BA0_CFLR_DEFAULT);
|
|
tmp = snd_cs4281_peekBA0(chip, BA0_CFLR);
|
|
if (tmp != BA0_CFLR_DEFAULT) {
|
|
snd_printk(KERN_ERR "CFLR setup failed (0x%x)\n", tmp);
|
|
return -EIO;
|
|
}
|
|
}
|
|
|
|
/* Set the 'Configuration Write Protect' register
|
|
* to 4281h. Allows vendor-defined configuration
|
|
* space between 0e4h and 0ffh to be written. */
|
|
snd_cs4281_pokeBA0(chip, BA0_CWPR, 0x4281);
|
|
|
|
if ((tmp = snd_cs4281_peekBA0(chip, BA0_SERC1)) != (BA0_SERC1_SO1EN | BA0_SERC1_AC97)) {
|
|
snd_printk(KERN_ERR "SERC1 AC'97 check failed (0x%x)\n", tmp);
|
|
return -EIO;
|
|
}
|
|
if ((tmp = snd_cs4281_peekBA0(chip, BA0_SERC2)) != (BA0_SERC2_SI1EN | BA0_SERC2_AC97)) {
|
|
snd_printk(KERN_ERR "SERC2 AC'97 check failed (0x%x)\n", tmp);
|
|
return -EIO;
|
|
}
|
|
|
|
/* Sound System Power Management */
|
|
snd_cs4281_pokeBA0(chip, BA0_SSPM, BA0_SSPM_MIXEN | BA0_SSPM_CSRCEN |
|
|
BA0_SSPM_PSRCEN | BA0_SSPM_JSEN |
|
|
BA0_SSPM_ACLEN | BA0_SSPM_FMEN);
|
|
|
|
/* Serial Port Power Management */
|
|
/* Blast the clock control register to zero so that the
|
|
* PLL starts out in a known state, and blast the master serial
|
|
* port control register to zero so that the serial ports also
|
|
* start out in a known state. */
|
|
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, 0);
|
|
snd_cs4281_pokeBA0(chip, BA0_SERMC, 0);
|
|
|
|
/* Make ESYN go to zero to turn off
|
|
* the Sync pulse on the AC97 link. */
|
|
snd_cs4281_pokeBA0(chip, BA0_ACCTL, 0);
|
|
udelay(50);
|
|
|
|
/* Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
|
|
* spec) and then drive it high. This is done for non AC97 modes since
|
|
* there might be logic external to the CS4281 that uses the ARST# line
|
|
* for a reset. */
|
|
snd_cs4281_pokeBA0(chip, BA0_SPMC, 0);
|
|
udelay(50);
|
|
snd_cs4281_pokeBA0(chip, BA0_SPMC, BA0_SPMC_RSTN);
|
|
msleep(50);
|
|
|
|
if (chip->dual_codec)
|
|
snd_cs4281_pokeBA0(chip, BA0_SPMC, BA0_SPMC_RSTN | BA0_SPMC_ASDI2E);
|
|
|
|
/*
|
|
* Set the serial port timing configuration.
|
|
*/
|
|
snd_cs4281_pokeBA0(chip, BA0_SERMC,
|
|
(chip->dual_codec ? BA0_SERMC_TCID(chip->dual_codec) : BA0_SERMC_TCID(1)) |
|
|
BA0_SERMC_PTC_AC97 | BA0_SERMC_MSPE);
|
|
|
|
/*
|
|
* Start the DLL Clock logic.
|
|
*/
|
|
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, BA0_CLKCR1_DLLP);
|
|
msleep(50);
|
|
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, BA0_CLKCR1_SWCE | BA0_CLKCR1_DLLP);
|
|
|
|
/*
|
|
* Wait for the DLL ready signal from the clock logic.
|
|
*/
|
|
end_time = jiffies + HZ;
|
|
do {
|
|
/*
|
|
* Read the AC97 status register to see if we've seen a CODEC
|
|
* signal from the AC97 codec.
|
|
*/
|
|
if (snd_cs4281_peekBA0(chip, BA0_CLKCR1) & BA0_CLKCR1_DLLRDY)
|
|
goto __ok0;
|
|
schedule_timeout_uninterruptible(1);
|
|
} while (time_after_eq(end_time, jiffies));
|
|
|
|
snd_printk(KERN_ERR "DLLRDY not seen\n");
|
|
return -EIO;
|
|
|
|
__ok0:
|
|
|
|
/*
|
|
* The first thing we do here is to enable sync generation. As soon
|
|
* as we start receiving bit clock, we'll start producing the SYNC
|
|
* signal.
|
|
*/
|
|
snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_ESYN);
|
|
|
|
/*
|
|
* Wait for the codec ready signal from the AC97 codec.
|
|
*/
|
|
end_time = jiffies + HZ;
|
|
do {
|
|
/*
|
|
* Read the AC97 status register to see if we've seen a CODEC
|
|
* signal from the AC97 codec.
|
|
*/
|
|
if (snd_cs4281_peekBA0(chip, BA0_ACSTS) & BA0_ACSTS_CRDY)
|
|
goto __ok1;
|
|
schedule_timeout_uninterruptible(1);
|
|
} while (time_after_eq(end_time, jiffies));
|
|
|
|
snd_printk(KERN_ERR "never read codec ready from AC'97 (0x%x)\n", snd_cs4281_peekBA0(chip, BA0_ACSTS));
|
|
return -EIO;
|
|
|
|
__ok1:
|
|
if (chip->dual_codec) {
|
|
end_time = jiffies + HZ;
|
|
do {
|
|
if (snd_cs4281_peekBA0(chip, BA0_ACSTS2) & BA0_ACSTS_CRDY)
|
|
goto __codec2_ok;
|
|
schedule_timeout_uninterruptible(1);
|
|
} while (time_after_eq(end_time, jiffies));
|
|
snd_printk(KERN_INFO "secondary codec doesn't respond. disable it...\n");
|
|
chip->dual_codec = 0;
|
|
__codec2_ok: ;
|
|
}
|
|
|
|
/*
|
|
* Assert the valid frame signal so that we can start sending commands
|
|
* to the AC97 codec.
|
|
*/
|
|
|
|
snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_VFRM | BA0_ACCTL_ESYN);
|
|
|
|
/*
|
|
* Wait until we've sampled input slots 3 and 4 as valid, meaning that
|
|
* the codec is pumping ADC data across the AC-link.
|
|
*/
|
|
|
|
end_time = jiffies + HZ;
|
|
do {
|
|
/*
|
|
* Read the input slot valid register and see if input slots 3
|
|
* 4 are valid yet.
|
|
*/
|
|
if ((snd_cs4281_peekBA0(chip, BA0_ACISV) & (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4))) == (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4)))
|
|
goto __ok2;
|
|
schedule_timeout_uninterruptible(1);
|
|
} while (time_after_eq(end_time, jiffies));
|
|
|
|
if (--retry_count > 0)
|
|
goto __retry;
|
|
snd_printk(KERN_ERR "never read ISV3 and ISV4 from AC'97\n");
|
|
return -EIO;
|
|
|
|
__ok2:
|
|
|
|
/*
|
|
* Now, assert valid frame and the slot 3 and 4 valid bits. This will
|
|
* commense the transfer of digital audio data to the AC97 codec.
|
|
*/
|
|
snd_cs4281_pokeBA0(chip, BA0_ACOSV, BA0_ACOSV_SLV(3) | BA0_ACOSV_SLV(4));
|
|
|
|
/*
|
|
* Initialize DMA structures
|
|
*/
|
|
for (tmp = 0; tmp < 4; tmp++) {
|
|
struct cs4281_dma *dma = &chip->dma[tmp];
|
|
dma->regDBA = BA0_DBA0 + (tmp * 0x10);
|
|
dma->regDCA = BA0_DCA0 + (tmp * 0x10);
|
|
dma->regDBC = BA0_DBC0 + (tmp * 0x10);
|
|
dma->regDCC = BA0_DCC0 + (tmp * 0x10);
|
|
dma->regDMR = BA0_DMR0 + (tmp * 8);
|
|
dma->regDCR = BA0_DCR0 + (tmp * 8);
|
|
dma->regHDSR = BA0_HDSR0 + (tmp * 4);
|
|
dma->regFCR = BA0_FCR0 + (tmp * 4);
|
|
dma->regFSIC = BA0_FSIC0 + (tmp * 4);
|
|
dma->fifo_offset = tmp * CS4281_FIFO_SIZE;
|
|
snd_cs4281_pokeBA0(chip, dma->regFCR,
|
|
BA0_FCR_LS(31) |
|
|
BA0_FCR_RS(31) |
|
|
BA0_FCR_SZ(CS4281_FIFO_SIZE) |
|
|
BA0_FCR_OF(dma->fifo_offset));
|
|
}
|
|
|
|
chip->src_left_play_slot = 0; /* AC'97 left PCM playback (3) */
|
|
chip->src_right_play_slot = 1; /* AC'97 right PCM playback (4) */
|
|
chip->src_left_rec_slot = 10; /* AC'97 left PCM record (3) */
|
|
chip->src_right_rec_slot = 11; /* AC'97 right PCM record (4) */
|
|
|
|
/* Activate wave playback FIFO for FM playback */
|
|
chip->dma[0].valFCR = BA0_FCR_FEN | BA0_FCR_LS(0) |
|
|
BA0_FCR_RS(1) |
|
|
BA0_FCR_SZ(CS4281_FIFO_SIZE) |
|
|
BA0_FCR_OF(chip->dma[0].fifo_offset);
|
|
snd_cs4281_pokeBA0(chip, chip->dma[0].regFCR, chip->dma[0].valFCR);
|
|
snd_cs4281_pokeBA0(chip, BA0_SRCSA, (chip->src_left_play_slot << 0) |
|
|
(chip->src_right_play_slot << 8) |
|
|
(chip->src_left_rec_slot << 16) |
|
|
(chip->src_right_rec_slot << 24));
|
|
|
|
/* Initialize digital volume */
|
|
snd_cs4281_pokeBA0(chip, BA0_PPLVC, 0);
|
|
snd_cs4281_pokeBA0(chip, BA0_PPRVC, 0);
|
|
|
|
/* Enable IRQs */
|
|
snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI);
|
|
/* Unmask interrupts */
|
|
snd_cs4281_pokeBA0(chip, BA0_HIMR, 0x7fffffff & ~(
|
|
BA0_HISR_MIDI |
|
|
BA0_HISR_DMAI |
|
|
BA0_HISR_DMA(0) |
|
|
BA0_HISR_DMA(1) |
|
|
BA0_HISR_DMA(2) |
|
|
BA0_HISR_DMA(3)));
|
|
synchronize_irq(chip->irq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* MIDI section
|
|
*/
|
|
|
|
static void snd_cs4281_midi_reset(struct cs4281 *chip)
|
|
{
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr | BA0_MIDCR_MRST);
|
|
udelay(100);
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
|
|
}
|
|
|
|
static int snd_cs4281_midi_input_open(struct snd_rawmidi_substream *substream)
|
|
{
|
|
struct cs4281 *chip = substream->rmidi->private_data;
|
|
|
|
spin_lock_irq(&chip->reg_lock);
|
|
chip->midcr |= BA0_MIDCR_RXE;
|
|
chip->midi_input = substream;
|
|
if (!(chip->uartm & CS4281_MODE_OUTPUT)) {
|
|
snd_cs4281_midi_reset(chip);
|
|
} else {
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
|
|
}
|
|
spin_unlock_irq(&chip->reg_lock);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4281_midi_input_close(struct snd_rawmidi_substream *substream)
|
|
{
|
|
struct cs4281 *chip = substream->rmidi->private_data;
|
|
|
|
spin_lock_irq(&chip->reg_lock);
|
|
chip->midcr &= ~(BA0_MIDCR_RXE | BA0_MIDCR_RIE);
|
|
chip->midi_input = NULL;
|
|
if (!(chip->uartm & CS4281_MODE_OUTPUT)) {
|
|
snd_cs4281_midi_reset(chip);
|
|
} else {
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
|
|
}
|
|
chip->uartm &= ~CS4281_MODE_INPUT;
|
|
spin_unlock_irq(&chip->reg_lock);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4281_midi_output_open(struct snd_rawmidi_substream *substream)
|
|
{
|
|
struct cs4281 *chip = substream->rmidi->private_data;
|
|
|
|
spin_lock_irq(&chip->reg_lock);
|
|
chip->uartm |= CS4281_MODE_OUTPUT;
|
|
chip->midcr |= BA0_MIDCR_TXE;
|
|
chip->midi_output = substream;
|
|
if (!(chip->uartm & CS4281_MODE_INPUT)) {
|
|
snd_cs4281_midi_reset(chip);
|
|
} else {
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
|
|
}
|
|
spin_unlock_irq(&chip->reg_lock);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4281_midi_output_close(struct snd_rawmidi_substream *substream)
|
|
{
|
|
struct cs4281 *chip = substream->rmidi->private_data;
|
|
|
|
spin_lock_irq(&chip->reg_lock);
|
|
chip->midcr &= ~(BA0_MIDCR_TXE | BA0_MIDCR_TIE);
|
|
chip->midi_output = NULL;
|
|
if (!(chip->uartm & CS4281_MODE_INPUT)) {
|
|
snd_cs4281_midi_reset(chip);
|
|
} else {
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
|
|
}
|
|
chip->uartm &= ~CS4281_MODE_OUTPUT;
|
|
spin_unlock_irq(&chip->reg_lock);
|
|
return 0;
|
|
}
|
|
|
|
static void snd_cs4281_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
|
|
{
|
|
unsigned long flags;
|
|
struct cs4281 *chip = substream->rmidi->private_data;
|
|
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
if (up) {
|
|
if ((chip->midcr & BA0_MIDCR_RIE) == 0) {
|
|
chip->midcr |= BA0_MIDCR_RIE;
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
|
|
}
|
|
} else {
|
|
if (chip->midcr & BA0_MIDCR_RIE) {
|
|
chip->midcr &= ~BA0_MIDCR_RIE;
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
}
|
|
|
|
static void snd_cs4281_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
|
|
{
|
|
unsigned long flags;
|
|
struct cs4281 *chip = substream->rmidi->private_data;
|
|
unsigned char byte;
|
|
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
if (up) {
|
|
if ((chip->midcr & BA0_MIDCR_TIE) == 0) {
|
|
chip->midcr |= BA0_MIDCR_TIE;
|
|
/* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */
|
|
while ((chip->midcr & BA0_MIDCR_TIE) &&
|
|
(snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_TBF) == 0) {
|
|
if (snd_rawmidi_transmit(substream, &byte, 1) != 1) {
|
|
chip->midcr &= ~BA0_MIDCR_TIE;
|
|
} else {
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDWP, byte);
|
|
}
|
|
}
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
|
|
}
|
|
} else {
|
|
if (chip->midcr & BA0_MIDCR_TIE) {
|
|
chip->midcr &= ~BA0_MIDCR_TIE;
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
}
|
|
|
|
static struct snd_rawmidi_ops snd_cs4281_midi_output =
|
|
{
|
|
.open = snd_cs4281_midi_output_open,
|
|
.close = snd_cs4281_midi_output_close,
|
|
.trigger = snd_cs4281_midi_output_trigger,
|
|
};
|
|
|
|
static struct snd_rawmidi_ops snd_cs4281_midi_input =
|
|
{
|
|
.open = snd_cs4281_midi_input_open,
|
|
.close = snd_cs4281_midi_input_close,
|
|
.trigger = snd_cs4281_midi_input_trigger,
|
|
};
|
|
|
|
static int __devinit snd_cs4281_midi(struct cs4281 * chip, int device,
|
|
struct snd_rawmidi **rrawmidi)
|
|
{
|
|
struct snd_rawmidi *rmidi;
|
|
int err;
|
|
|
|
if (rrawmidi)
|
|
*rrawmidi = NULL;
|
|
if ((err = snd_rawmidi_new(chip->card, "CS4281", device, 1, 1, &rmidi)) < 0)
|
|
return err;
|
|
strcpy(rmidi->name, "CS4281");
|
|
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs4281_midi_output);
|
|
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs4281_midi_input);
|
|
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX;
|
|
rmidi->private_data = chip;
|
|
chip->rmidi = rmidi;
|
|
if (rrawmidi)
|
|
*rrawmidi = rmidi;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Interrupt handler
|
|
*/
|
|
|
|
static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id)
|
|
{
|
|
struct cs4281 *chip = dev_id;
|
|
unsigned int status, dma, val;
|
|
struct cs4281_dma *cdma;
|
|
|
|
if (chip == NULL)
|
|
return IRQ_NONE;
|
|
status = snd_cs4281_peekBA0(chip, BA0_HISR);
|
|
if ((status & 0x7fffffff) == 0) {
|
|
snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
if (status & (BA0_HISR_DMA(0)|BA0_HISR_DMA(1)|BA0_HISR_DMA(2)|BA0_HISR_DMA(3))) {
|
|
for (dma = 0; dma < 4; dma++)
|
|
if (status & BA0_HISR_DMA(dma)) {
|
|
cdma = &chip->dma[dma];
|
|
spin_lock(&chip->reg_lock);
|
|
/* ack DMA IRQ */
|
|
val = snd_cs4281_peekBA0(chip, cdma->regHDSR);
|
|
/* workaround, sometimes CS4281 acknowledges */
|
|
/* end or middle transfer position twice */
|
|
cdma->frag++;
|
|
if ((val & BA0_HDSR_DHTC) && !(cdma->frag & 1)) {
|
|
cdma->frag--;
|
|
chip->spurious_dhtc_irq++;
|
|
spin_unlock(&chip->reg_lock);
|
|
continue;
|
|
}
|
|
if ((val & BA0_HDSR_DTC) && (cdma->frag & 1)) {
|
|
cdma->frag--;
|
|
chip->spurious_dtc_irq++;
|
|
spin_unlock(&chip->reg_lock);
|
|
continue;
|
|
}
|
|
spin_unlock(&chip->reg_lock);
|
|
snd_pcm_period_elapsed(cdma->substream);
|
|
}
|
|
}
|
|
|
|
if ((status & BA0_HISR_MIDI) && chip->rmidi) {
|
|
unsigned char c;
|
|
|
|
spin_lock(&chip->reg_lock);
|
|
while ((snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_RBE) == 0) {
|
|
c = snd_cs4281_peekBA0(chip, BA0_MIDRP);
|
|
if ((chip->midcr & BA0_MIDCR_RIE) == 0)
|
|
continue;
|
|
snd_rawmidi_receive(chip->midi_input, &c, 1);
|
|
}
|
|
while ((snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_TBF) == 0) {
|
|
if ((chip->midcr & BA0_MIDCR_TIE) == 0)
|
|
break;
|
|
if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) {
|
|
chip->midcr &= ~BA0_MIDCR_TIE;
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr);
|
|
break;
|
|
}
|
|
snd_cs4281_pokeBA0(chip, BA0_MIDWP, c);
|
|
}
|
|
spin_unlock(&chip->reg_lock);
|
|
}
|
|
|
|
/* EOI to the PCI part... reenables interrupts */
|
|
snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
|
|
/*
|
|
* OPL3 command
|
|
*/
|
|
static void snd_cs4281_opl3_command(struct snd_opl3 *opl3, unsigned short cmd,
|
|
unsigned char val)
|
|
{
|
|
unsigned long flags;
|
|
struct cs4281 *chip = opl3->private_data;
|
|
void __iomem *port;
|
|
|
|
if (cmd & OPL3_RIGHT)
|
|
port = chip->ba0 + BA0_B1AP; /* right port */
|
|
else
|
|
port = chip->ba0 + BA0_B0AP; /* left port */
|
|
|
|
spin_lock_irqsave(&opl3->reg_lock, flags);
|
|
|
|
writel((unsigned int)cmd, port);
|
|
udelay(10);
|
|
|
|
writel((unsigned int)val, port + 4);
|
|
udelay(30);
|
|
|
|
spin_unlock_irqrestore(&opl3->reg_lock, flags);
|
|
}
|
|
|
|
static int __devinit snd_cs4281_probe(struct pci_dev *pci,
|
|
const struct pci_device_id *pci_id)
|
|
{
|
|
static int dev;
|
|
struct snd_card *card;
|
|
struct cs4281 *chip;
|
|
struct snd_opl3 *opl3;
|
|
int err;
|
|
|
|
if (dev >= SNDRV_CARDS)
|
|
return -ENODEV;
|
|
if (!enable[dev]) {
|
|
dev++;
|
|
return -ENOENT;
|
|
}
|
|
|
|
card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
|
|
if (card == NULL)
|
|
return -ENOMEM;
|
|
|
|
if ((err = snd_cs4281_create(card, pci, &chip, dual_codec[dev])) < 0) {
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
card->private_data = chip;
|
|
|
|
if ((err = snd_cs4281_mixer(chip)) < 0) {
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
if ((err = snd_cs4281_pcm(chip, 0, NULL)) < 0) {
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
if ((err = snd_cs4281_midi(chip, 0, NULL)) < 0) {
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
if ((err = snd_opl3_new(card, OPL3_HW_OPL3_CS4281, &opl3)) < 0) {
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
opl3->private_data = chip;
|
|
opl3->command = snd_cs4281_opl3_command;
|
|
snd_opl3_init(opl3);
|
|
if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
snd_cs4281_create_gameport(chip);
|
|
strcpy(card->driver, "CS4281");
|
|
strcpy(card->shortname, "Cirrus Logic CS4281");
|
|
sprintf(card->longname, "%s at 0x%lx, irq %d",
|
|
card->shortname,
|
|
chip->ba0_addr,
|
|
chip->irq);
|
|
|
|
if ((err = snd_card_register(card)) < 0) {
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
|
|
pci_set_drvdata(pci, card);
|
|
dev++;
|
|
return 0;
|
|
}
|
|
|
|
static void __devexit snd_cs4281_remove(struct pci_dev *pci)
|
|
{
|
|
snd_card_free(pci_get_drvdata(pci));
|
|
pci_set_drvdata(pci, NULL);
|
|
}
|
|
|
|
/*
|
|
* Power Management
|
|
*/
|
|
#ifdef CONFIG_PM
|
|
|
|
static int saved_regs[SUSPEND_REGISTERS] = {
|
|
BA0_JSCTL,
|
|
BA0_GPIOR,
|
|
BA0_SSCR,
|
|
BA0_MIDCR,
|
|
BA0_SRCSA,
|
|
BA0_PASR,
|
|
BA0_CASR,
|
|
BA0_DACSR,
|
|
BA0_ADCSR,
|
|
BA0_FMLVC,
|
|
BA0_FMRVC,
|
|
BA0_PPLVC,
|
|
BA0_PPRVC,
|
|
};
|
|
|
|
#define CLKCR1_CKRA 0x00010000L
|
|
|
|
static int cs4281_suspend(struct pci_dev *pci, pm_message_t state)
|
|
{
|
|
struct snd_card *card = pci_get_drvdata(pci);
|
|
struct cs4281 *chip = card->private_data;
|
|
u32 ulCLK;
|
|
unsigned int i;
|
|
|
|
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
|
|
snd_pcm_suspend_all(chip->pcm);
|
|
|
|
snd_ac97_suspend(chip->ac97);
|
|
snd_ac97_suspend(chip->ac97_secondary);
|
|
|
|
ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1);
|
|
ulCLK |= CLKCR1_CKRA;
|
|
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK);
|
|
|
|
/* Disable interrupts. */
|
|
snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_CHGM);
|
|
|
|
/* remember the status registers */
|
|
for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
|
|
if (saved_regs[i])
|
|
chip->suspend_regs[i] = snd_cs4281_peekBA0(chip, saved_regs[i]);
|
|
|
|
/* Turn off the serial ports. */
|
|
snd_cs4281_pokeBA0(chip, BA0_SERMC, 0);
|
|
|
|
/* Power off FM, Joystick, AC link, */
|
|
snd_cs4281_pokeBA0(chip, BA0_SSPM, 0);
|
|
|
|
/* DLL off. */
|
|
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, 0);
|
|
|
|
/* AC link off. */
|
|
snd_cs4281_pokeBA0(chip, BA0_SPMC, 0);
|
|
|
|
ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1);
|
|
ulCLK &= ~CLKCR1_CKRA;
|
|
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK);
|
|
|
|
pci_disable_device(pci);
|
|
pci_save_state(pci);
|
|
pci_set_power_state(pci, pci_choose_state(pci, state));
|
|
return 0;
|
|
}
|
|
|
|
static int cs4281_resume(struct pci_dev *pci)
|
|
{
|
|
struct snd_card *card = pci_get_drvdata(pci);
|
|
struct cs4281 *chip = card->private_data;
|
|
unsigned int i;
|
|
u32 ulCLK;
|
|
|
|
pci_set_power_state(pci, PCI_D0);
|
|
pci_restore_state(pci);
|
|
if (pci_enable_device(pci) < 0) {
|
|
printk(KERN_ERR "cs4281: pci_enable_device failed, "
|
|
"disabling device\n");
|
|
snd_card_disconnect(card);
|
|
return -EIO;
|
|
}
|
|
pci_set_master(pci);
|
|
|
|
ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1);
|
|
ulCLK |= CLKCR1_CKRA;
|
|
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK);
|
|
|
|
snd_cs4281_chip_init(chip);
|
|
|
|
/* restore the status registers */
|
|
for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
|
|
if (saved_regs[i])
|
|
snd_cs4281_pokeBA0(chip, saved_regs[i], chip->suspend_regs[i]);
|
|
|
|
snd_ac97_resume(chip->ac97);
|
|
snd_ac97_resume(chip->ac97_secondary);
|
|
|
|
ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1);
|
|
ulCLK &= ~CLKCR1_CKRA;
|
|
snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK);
|
|
|
|
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_PM */
|
|
|
|
static struct pci_driver driver = {
|
|
.name = "CS4281",
|
|
.id_table = snd_cs4281_ids,
|
|
.probe = snd_cs4281_probe,
|
|
.remove = __devexit_p(snd_cs4281_remove),
|
|
#ifdef CONFIG_PM
|
|
.suspend = cs4281_suspend,
|
|
.resume = cs4281_resume,
|
|
#endif
|
|
};
|
|
|
|
static int __init alsa_card_cs4281_init(void)
|
|
{
|
|
return pci_register_driver(&driver);
|
|
}
|
|
|
|
static void __exit alsa_card_cs4281_exit(void)
|
|
{
|
|
pci_unregister_driver(&driver);
|
|
}
|
|
|
|
module_init(alsa_card_cs4281_init)
|
|
module_exit(alsa_card_cs4281_exit)
|