1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Driver for Cirrus Logic CS4281 based PCI soundcard 4 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>, 5 */ 6 7 #include <linux/io.h> 8 #include <linux/delay.h> 9 #include <linux/interrupt.h> 10 #include <linux/init.h> 11 #include <linux/pci.h> 12 #include <linux/slab.h> 13 #include <linux/gameport.h> 14 #include <linux/module.h> 15 #include <sound/core.h> 16 #include <sound/control.h> 17 #include <sound/pcm.h> 18 #include <sound/rawmidi.h> 19 #include <sound/ac97_codec.h> 20 #include <sound/tlv.h> 21 #include <sound/opl3.h> 22 #include <sound/initval.h> 23 24 25 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 26 MODULE_DESCRIPTION("Cirrus Logic CS4281"); 27 MODULE_LICENSE("GPL"); 28 29 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 30 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 31 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */ 32 static bool dual_codec[SNDRV_CARDS]; /* dual codec */ 33 34 module_param_array(index, int, NULL, 0444); 35 MODULE_PARM_DESC(index, "Index value for CS4281 soundcard."); 36 module_param_array(id, charp, NULL, 0444); 37 MODULE_PARM_DESC(id, "ID string for CS4281 soundcard."); 38 module_param_array(enable, bool, NULL, 0444); 39 MODULE_PARM_DESC(enable, "Enable CS4281 soundcard."); 40 module_param_array(dual_codec, bool, NULL, 0444); 41 MODULE_PARM_DESC(dual_codec, "Secondary Codec ID (0 = disabled)."); 42 43 /* 44 * Direct registers 45 */ 46 47 #define CS4281_BA0_SIZE 0x1000 48 #define CS4281_BA1_SIZE 0x10000 49 50 /* 51 * BA0 registers 52 */ 53 #define BA0_HISR 0x0000 /* Host Interrupt Status Register */ 54 #define BA0_HISR_INTENA (1<<31) /* Internal Interrupt Enable Bit */ 55 #define BA0_HISR_MIDI (1<<22) /* MIDI port interrupt */ 56 #define BA0_HISR_FIFOI (1<<20) /* FIFO polled interrupt */ 57 #define BA0_HISR_DMAI (1<<18) /* DMA interrupt (half or end) */ 58 #define BA0_HISR_FIFO(c) (1<<(12+(c))) /* FIFO channel interrupt */ 59 #define BA0_HISR_DMA(c) (1<<(8+(c))) /* DMA channel interrupt */ 60 #define BA0_HISR_GPPI (1<<5) /* General Purpose Input (Primary chip) */ 61 #define BA0_HISR_GPSI (1<<4) /* General Purpose Input (Secondary chip) */ 62 #define BA0_HISR_GP3I (1<<3) /* GPIO3 pin Interrupt */ 63 #define BA0_HISR_GP1I (1<<2) /* GPIO1 pin Interrupt */ 64 #define BA0_HISR_VUPI (1<<1) /* VOLUP pin Interrupt */ 65 #define BA0_HISR_VDNI (1<<0) /* VOLDN pin Interrupt */ 66 67 #define BA0_HICR 0x0008 /* Host Interrupt Control Register */ 68 #define BA0_HICR_CHGM (1<<1) /* INTENA Change Mask */ 69 #define BA0_HICR_IEV (1<<0) /* INTENA Value */ 70 #define BA0_HICR_EOI (3<<0) /* End of Interrupt command */ 71 72 #define BA0_HIMR 0x000c /* Host Interrupt Mask Register */ 73 /* Use same contants as for BA0_HISR */ 74 75 #define BA0_IIER 0x0010 /* ISA Interrupt Enable Register */ 76 77 #define BA0_HDSR0 0x00f0 /* Host DMA Engine 0 Status Register */ 78 #define BA0_HDSR1 0x00f4 /* Host DMA Engine 1 Status Register */ 79 #define BA0_HDSR2 0x00f8 /* Host DMA Engine 2 Status Register */ 80 #define BA0_HDSR3 0x00fc /* Host DMA Engine 3 Status Register */ 81 82 #define BA0_HDSR_CH1P (1<<25) /* Channel 1 Pending */ 83 #define BA0_HDSR_CH2P (1<<24) /* Channel 2 Pending */ 84 #define BA0_HDSR_DHTC (1<<17) /* DMA Half Terminal Count */ 85 #define BA0_HDSR_DTC (1<<16) /* DMA Terminal Count */ 86 #define BA0_HDSR_DRUN (1<<15) /* DMA Running */ 87 #define BA0_HDSR_RQ (1<<7) /* Pending Request */ 88 89 #define BA0_DCA0 0x0110 /* Host DMA Engine 0 Current Address */ 90 #define BA0_DCC0 0x0114 /* Host DMA Engine 0 Current Count */ 91 #define BA0_DBA0 0x0118 /* Host DMA Engine 0 Base Address */ 92 #define BA0_DBC0 0x011c /* Host DMA Engine 0 Base Count */ 93 #define BA0_DCA1 0x0120 /* Host DMA Engine 1 Current Address */ 94 #define BA0_DCC1 0x0124 /* Host DMA Engine 1 Current Count */ 95 #define BA0_DBA1 0x0128 /* Host DMA Engine 1 Base Address */ 96 #define BA0_DBC1 0x012c /* Host DMA Engine 1 Base Count */ 97 #define BA0_DCA2 0x0130 /* Host DMA Engine 2 Current Address */ 98 #define BA0_DCC2 0x0134 /* Host DMA Engine 2 Current Count */ 99 #define BA0_DBA2 0x0138 /* Host DMA Engine 2 Base Address */ 100 #define BA0_DBC2 0x013c /* Host DMA Engine 2 Base Count */ 101 #define BA0_DCA3 0x0140 /* Host DMA Engine 3 Current Address */ 102 #define BA0_DCC3 0x0144 /* Host DMA Engine 3 Current Count */ 103 #define BA0_DBA3 0x0148 /* Host DMA Engine 3 Base Address */ 104 #define BA0_DBC3 0x014c /* Host DMA Engine 3 Base Count */ 105 #define BA0_DMR0 0x0150 /* Host DMA Engine 0 Mode */ 106 #define BA0_DCR0 0x0154 /* Host DMA Engine 0 Command */ 107 #define BA0_DMR1 0x0158 /* Host DMA Engine 1 Mode */ 108 #define BA0_DCR1 0x015c /* Host DMA Engine 1 Command */ 109 #define BA0_DMR2 0x0160 /* Host DMA Engine 2 Mode */ 110 #define BA0_DCR2 0x0164 /* Host DMA Engine 2 Command */ 111 #define BA0_DMR3 0x0168 /* Host DMA Engine 3 Mode */ 112 #define BA0_DCR3 0x016c /* Host DMA Engine 3 Command */ 113 114 #define BA0_DMR_DMA (1<<29) /* Enable DMA mode */ 115 #define BA0_DMR_POLL (1<<28) /* Enable poll mode */ 116 #define BA0_DMR_TBC (1<<25) /* Transfer By Channel */ 117 #define BA0_DMR_CBC (1<<24) /* Count By Channel (0 = frame resolution) */ 118 #define BA0_DMR_SWAPC (1<<22) /* Swap Left/Right Channels */ 119 #define BA0_DMR_SIZE20 (1<<20) /* Sample is 20-bit */ 120 #define BA0_DMR_USIGN (1<<19) /* Unsigned */ 121 #define BA0_DMR_BEND (1<<18) /* Big Endian */ 122 #define BA0_DMR_MONO (1<<17) /* Mono */ 123 #define BA0_DMR_SIZE8 (1<<16) /* Sample is 8-bit */ 124 #define BA0_DMR_TYPE_DEMAND (0<<6) 125 #define BA0_DMR_TYPE_SINGLE (1<<6) 126 #define BA0_DMR_TYPE_BLOCK (2<<6) 127 #define BA0_DMR_TYPE_CASCADE (3<<6) /* Not supported */ 128 #define BA0_DMR_DEC (1<<5) /* Access Increment (0) or Decrement (1) */ 129 #define BA0_DMR_AUTO (1<<4) /* Auto-Initialize */ 130 #define BA0_DMR_TR_VERIFY (0<<2) /* Verify Transfer */ 131 #define BA0_DMR_TR_WRITE (1<<2) /* Write Transfer */ 132 #define BA0_DMR_TR_READ (2<<2) /* Read Transfer */ 133 134 #define BA0_DCR_HTCIE (1<<17) /* Half Terminal Count Interrupt */ 135 #define BA0_DCR_TCIE (1<<16) /* Terminal Count Interrupt */ 136 #define BA0_DCR_MSK (1<<0) /* DMA Mask bit */ 137 138 #define BA0_FCR0 0x0180 /* FIFO Control 0 */ 139 #define BA0_FCR1 0x0184 /* FIFO Control 1 */ 140 #define BA0_FCR2 0x0188 /* FIFO Control 2 */ 141 #define BA0_FCR3 0x018c /* FIFO Control 3 */ 142 143 #define BA0_FCR_FEN (1<<31) /* FIFO Enable bit */ 144 #define BA0_FCR_DACZ (1<<30) /* DAC Zero */ 145 #define BA0_FCR_PSH (1<<29) /* Previous Sample Hold */ 146 #define BA0_FCR_RS(x) (((x)&0x1f)<<24) /* Right Slot Mapping */ 147 #define BA0_FCR_LS(x) (((x)&0x1f)<<16) /* Left Slot Mapping */ 148 #define BA0_FCR_SZ(x) (((x)&0x7f)<<8) /* FIFO buffer size (in samples) */ 149 #define BA0_FCR_OF(x) (((x)&0x7f)<<0) /* FIFO starting offset (in samples) */ 150 151 #define BA0_FPDR0 0x0190 /* FIFO Polled Data 0 */ 152 #define BA0_FPDR1 0x0194 /* FIFO Polled Data 1 */ 153 #define BA0_FPDR2 0x0198 /* FIFO Polled Data 2 */ 154 #define BA0_FPDR3 0x019c /* FIFO Polled Data 3 */ 155 156 #define BA0_FCHS 0x020c /* FIFO Channel Status */ 157 #define BA0_FCHS_RCO(x) (1<<(7+(((x)&3)<<3))) /* Right Channel Out */ 158 #define BA0_FCHS_LCO(x) (1<<(6+(((x)&3)<<3))) /* Left Channel Out */ 159 #define BA0_FCHS_MRP(x) (1<<(5+(((x)&3)<<3))) /* Move Read Pointer */ 160 #define BA0_FCHS_FE(x) (1<<(4+(((x)&3)<<3))) /* FIFO Empty */ 161 #define BA0_FCHS_FF(x) (1<<(3+(((x)&3)<<3))) /* FIFO Full */ 162 #define BA0_FCHS_IOR(x) (1<<(2+(((x)&3)<<3))) /* Internal Overrun Flag */ 163 #define BA0_FCHS_RCI(x) (1<<(1+(((x)&3)<<3))) /* Right Channel In */ 164 #define BA0_FCHS_LCI(x) (1<<(0+(((x)&3)<<3))) /* Left Channel In */ 165 166 #define BA0_FSIC0 0x0210 /* FIFO Status and Interrupt Control 0 */ 167 #define BA0_FSIC1 0x0214 /* FIFO Status and Interrupt Control 1 */ 168 #define BA0_FSIC2 0x0218 /* FIFO Status and Interrupt Control 2 */ 169 #define BA0_FSIC3 0x021c /* FIFO Status and Interrupt Control 3 */ 170 171 #define BA0_FSIC_FIC(x) (((x)&0x7f)<<24) /* FIFO Interrupt Count */ 172 #define BA0_FSIC_FORIE (1<<23) /* FIFO OverRun Interrupt Enable */ 173 #define BA0_FSIC_FURIE (1<<22) /* FIFO UnderRun Interrupt Enable */ 174 #define BA0_FSIC_FSCIE (1<<16) /* FIFO Sample Count Interrupt Enable */ 175 #define BA0_FSIC_FSC(x) (((x)&0x7f)<<8) /* FIFO Sample Count */ 176 #define BA0_FSIC_FOR (1<<7) /* FIFO OverRun */ 177 #define BA0_FSIC_FUR (1<<6) /* FIFO UnderRun */ 178 #define BA0_FSIC_FSCR (1<<0) /* FIFO Sample Count Reached */ 179 180 #define BA0_PMCS 0x0344 /* Power Management Control/Status */ 181 #define BA0_CWPR 0x03e0 /* Configuration Write Protect */ 182 183 #define BA0_EPPMC 0x03e4 /* Extended PCI Power Management Control */ 184 #define BA0_EPPMC_FPDN (1<<14) /* Full Power DowN */ 185 186 #define BA0_GPIOR 0x03e8 /* GPIO Pin Interface Register */ 187 188 #define BA0_SPMC 0x03ec /* Serial Port Power Management Control (& ASDIN2 enable) */ 189 #define BA0_SPMC_GIPPEN (1<<15) /* GP INT Primary PME# Enable */ 190 #define BA0_SPMC_GISPEN (1<<14) /* GP INT Secondary PME# Enable */ 191 #define BA0_SPMC_EESPD (1<<9) /* EEPROM Serial Port Disable */ 192 #define BA0_SPMC_ASDI2E (1<<8) /* ASDIN2 Enable */ 193 #define BA0_SPMC_ASDO (1<<7) /* Asynchronous ASDOUT Assertion */ 194 #define BA0_SPMC_WUP2 (1<<3) /* Wakeup for Secondary Input */ 195 #define BA0_SPMC_WUP1 (1<<2) /* Wakeup for Primary Input */ 196 #define BA0_SPMC_ASYNC (1<<1) /* Asynchronous ASYNC Assertion */ 197 #define BA0_SPMC_RSTN (1<<0) /* Reset Not! */ 198 199 #define BA0_CFLR 0x03f0 /* Configuration Load Register (EEPROM or BIOS) */ 200 #define BA0_CFLR_DEFAULT 0x00000001 /* CFLR must be in AC97 link mode */ 201 #define BA0_IISR 0x03f4 /* ISA Interrupt Select */ 202 #define BA0_TMS 0x03f8 /* Test Register */ 203 #define BA0_SSVID 0x03fc /* Subsystem ID register */ 204 205 #define BA0_CLKCR1 0x0400 /* Clock Control Register 1 */ 206 #define BA0_CLKCR1_CLKON (1<<25) /* Read Only */ 207 #define BA0_CLKCR1_DLLRDY (1<<24) /* DLL Ready */ 208 #define BA0_CLKCR1_DLLOS (1<<6) /* DLL Output Select */ 209 #define BA0_CLKCR1_SWCE (1<<5) /* Clock Enable */ 210 #define BA0_CLKCR1_DLLP (1<<4) /* DLL PowerUp */ 211 #define BA0_CLKCR1_DLLSS (((x)&3)<<3) /* DLL Source Select */ 212 213 #define BA0_FRR 0x0410 /* Feature Reporting Register */ 214 #define BA0_SLT12O 0x041c /* Slot 12 GPIO Output Register for AC-Link */ 215 216 #define BA0_SERMC 0x0420 /* Serial Port Master Control */ 217 #define BA0_SERMC_FCRN (1<<27) /* Force Codec Ready Not */ 218 #define BA0_SERMC_ODSEN2 (1<<25) /* On-Demand Support Enable ASDIN2 */ 219 #define BA0_SERMC_ODSEN1 (1<<24) /* On-Demand Support Enable ASDIN1 */ 220 #define BA0_SERMC_SXLB (1<<21) /* ASDIN2 to ASDOUT Loopback */ 221 #define BA0_SERMC_SLB (1<<20) /* ASDOUT to ASDIN2 Loopback */ 222 #define BA0_SERMC_LOVF (1<<19) /* Loopback Output Valid Frame bit */ 223 #define BA0_SERMC_TCID(x) (((x)&3)<<16) /* Target Secondary Codec ID */ 224 #define BA0_SERMC_PXLB (5<<1) /* Primary Port External Loopback */ 225 #define BA0_SERMC_PLB (4<<1) /* Primary Port Internal Loopback */ 226 #define BA0_SERMC_PTC (7<<1) /* Port Timing Configuration */ 227 #define BA0_SERMC_PTC_AC97 (1<<1) /* AC97 mode */ 228 #define BA0_SERMC_MSPE (1<<0) /* Master Serial Port Enable */ 229 230 #define BA0_SERC1 0x0428 /* Serial Port Configuration 1 */ 231 #define BA0_SERC1_SO1F(x) (((x)&7)>>1) /* Primary Output Port Format */ 232 #define BA0_SERC1_AC97 (1<<1) 233 #define BA0_SERC1_SO1EN (1<<0) /* Primary Output Port Enable */ 234 235 #define BA0_SERC2 0x042c /* Serial Port Configuration 2 */ 236 #define BA0_SERC2_SI1F(x) (((x)&7)>>1) /* Primary Input Port Format */ 237 #define BA0_SERC2_AC97 (1<<1) 238 #define BA0_SERC2_SI1EN (1<<0) /* Primary Input Port Enable */ 239 240 #define BA0_SLT12M 0x045c /* Slot 12 Monitor Register for Primary AC-Link */ 241 242 #define BA0_ACCTL 0x0460 /* AC'97 Control */ 243 #define BA0_ACCTL_TC (1<<6) /* Target Codec */ 244 #define BA0_ACCTL_CRW (1<<4) /* 0=Write, 1=Read Command */ 245 #define BA0_ACCTL_DCV (1<<3) /* Dynamic Command Valid */ 246 #define BA0_ACCTL_VFRM (1<<2) /* Valid Frame */ 247 #define BA0_ACCTL_ESYN (1<<1) /* Enable Sync */ 248 249 #define BA0_ACSTS 0x0464 /* AC'97 Status */ 250 #define BA0_ACSTS_VSTS (1<<1) /* Valid Status */ 251 #define BA0_ACSTS_CRDY (1<<0) /* Codec Ready */ 252 253 #define BA0_ACOSV 0x0468 /* AC'97 Output Slot Valid */ 254 #define BA0_ACOSV_SLV(x) (1<<((x)-3)) 255 256 #define BA0_ACCAD 0x046c /* AC'97 Command Address */ 257 #define BA0_ACCDA 0x0470 /* AC'97 Command Data */ 258 259 #define BA0_ACISV 0x0474 /* AC'97 Input Slot Valid */ 260 #define BA0_ACISV_SLV(x) (1<<((x)-3)) 261 262 #define BA0_ACSAD 0x0478 /* AC'97 Status Address */ 263 #define BA0_ACSDA 0x047c /* AC'97 Status Data */ 264 #define BA0_JSPT 0x0480 /* Joystick poll/trigger */ 265 #define BA0_JSCTL 0x0484 /* Joystick control */ 266 #define BA0_JSC1 0x0488 /* Joystick control */ 267 #define BA0_JSC2 0x048c /* Joystick control */ 268 #define BA0_JSIO 0x04a0 269 270 #define BA0_MIDCR 0x0490 /* MIDI Control */ 271 #define BA0_MIDCR_MRST (1<<5) /* Reset MIDI Interface */ 272 #define BA0_MIDCR_MLB (1<<4) /* MIDI Loop Back Enable */ 273 #define BA0_MIDCR_TIE (1<<3) /* MIDI Transmuit Interrupt Enable */ 274 #define BA0_MIDCR_RIE (1<<2) /* MIDI Receive Interrupt Enable */ 275 #define BA0_MIDCR_RXE (1<<1) /* MIDI Receive Enable */ 276 #define BA0_MIDCR_TXE (1<<0) /* MIDI Transmit Enable */ 277 278 #define BA0_MIDCMD 0x0494 /* MIDI Command (wo) */ 279 280 #define BA0_MIDSR 0x0494 /* MIDI Status (ro) */ 281 #define BA0_MIDSR_RDA (1<<15) /* Sticky bit (RBE 1->0) */ 282 #define BA0_MIDSR_TBE (1<<14) /* Sticky bit (TBF 0->1) */ 283 #define BA0_MIDSR_RBE (1<<7) /* Receive Buffer Empty */ 284 #define BA0_MIDSR_TBF (1<<6) /* Transmit Buffer Full */ 285 286 #define BA0_MIDWP 0x0498 /* MIDI Write */ 287 #define BA0_MIDRP 0x049c /* MIDI Read (ro) */ 288 289 #define BA0_AODSD1 0x04a8 /* AC'97 On-Demand Slot Disable for primary link (ro) */ 290 #define BA0_AODSD1_NDS(x) (1<<((x)-3)) 291 292 #define BA0_AODSD2 0x04ac /* AC'97 On-Demand Slot Disable for secondary link (ro) */ 293 #define BA0_AODSD2_NDS(x) (1<<((x)-3)) 294 295 #define BA0_CFGI 0x04b0 /* Configure Interface (EEPROM interface) */ 296 #define BA0_SLT12M2 0x04dc /* Slot 12 Monitor Register 2 for secondary AC-link */ 297 #define BA0_ACSTS2 0x04e4 /* AC'97 Status Register 2 */ 298 #define BA0_ACISV2 0x04f4 /* AC'97 Input Slot Valid Register 2 */ 299 #define BA0_ACSAD2 0x04f8 /* AC'97 Status Address Register 2 */ 300 #define BA0_ACSDA2 0x04fc /* AC'97 Status Data Register 2 */ 301 #define BA0_FMSR 0x0730 /* FM Synthesis Status (ro) */ 302 #define BA0_B0AP 0x0730 /* FM Bank 0 Address Port (wo) */ 303 #define BA0_FMDP 0x0734 /* FM Data Port */ 304 #define BA0_B1AP 0x0738 /* FM Bank 1 Address Port */ 305 #define BA0_B1DP 0x073c /* FM Bank 1 Data Port */ 306 307 #define BA0_SSPM 0x0740 /* Sound System Power Management */ 308 #define BA0_SSPM_MIXEN (1<<6) /* Playback SRC + FM/Wavetable MIX */ 309 #define BA0_SSPM_CSRCEN (1<<5) /* Capture Sample Rate Converter Enable */ 310 #define BA0_SSPM_PSRCEN (1<<4) /* Playback Sample Rate Converter Enable */ 311 #define BA0_SSPM_JSEN (1<<3) /* Joystick Enable */ 312 #define BA0_SSPM_ACLEN (1<<2) /* Serial Port Engine and AC-Link Enable */ 313 #define BA0_SSPM_FMEN (1<<1) /* FM Synthesis Block Enable */ 314 315 #define BA0_DACSR 0x0744 /* DAC Sample Rate - Playback SRC */ 316 #define BA0_ADCSR 0x0748 /* ADC Sample Rate - Capture SRC */ 317 318 #define BA0_SSCR 0x074c /* Sound System Control Register */ 319 #define BA0_SSCR_HVS1 (1<<23) /* Hardwave Volume Step (0=1,1=2) */ 320 #define BA0_SSCR_MVCS (1<<19) /* Master Volume Codec Select */ 321 #define BA0_SSCR_MVLD (1<<18) /* Master Volume Line Out Disable */ 322 #define BA0_SSCR_MVAD (1<<17) /* Master Volume Alternate Out Disable */ 323 #define BA0_SSCR_MVMD (1<<16) /* Master Volume Mono Out Disable */ 324 #define BA0_SSCR_XLPSRC (1<<8) /* External SRC Loopback Mode */ 325 #define BA0_SSCR_LPSRC (1<<7) /* SRC Loopback Mode */ 326 #define BA0_SSCR_CDTX (1<<5) /* CD Transfer Data */ 327 #define BA0_SSCR_HVC (1<<3) /* Harware Volume Control Enable */ 328 329 #define BA0_FMLVC 0x0754 /* FM Synthesis Left Volume Control */ 330 #define BA0_FMRVC 0x0758 /* FM Synthesis Right Volume Control */ 331 #define BA0_SRCSA 0x075c /* SRC Slot Assignments */ 332 #define BA0_PPLVC 0x0760 /* PCM Playback Left Volume Control */ 333 #define BA0_PPRVC 0x0764 /* PCM Playback Right Volume Control */ 334 #define BA0_PASR 0x0768 /* playback sample rate */ 335 #define BA0_CASR 0x076C /* capture sample rate */ 336 337 /* Source Slot Numbers - Playback */ 338 #define SRCSLOT_LEFT_PCM_PLAYBACK 0 339 #define SRCSLOT_RIGHT_PCM_PLAYBACK 1 340 #define SRCSLOT_PHONE_LINE_1_DAC 2 341 #define SRCSLOT_CENTER_PCM_PLAYBACK 3 342 #define SRCSLOT_LEFT_SURROUND_PCM_PLAYBACK 4 343 #define SRCSLOT_RIGHT_SURROUND_PCM_PLAYBACK 5 344 #define SRCSLOT_LFE_PCM_PLAYBACK 6 345 #define SRCSLOT_PHONE_LINE_2_DAC 7 346 #define SRCSLOT_HEADSET_DAC 8 347 #define SRCSLOT_LEFT_WT 29 /* invalid for BA0_SRCSA */ 348 #define SRCSLOT_RIGHT_WT 30 /* invalid for BA0_SRCSA */ 349 350 /* Source Slot Numbers - Capture */ 351 #define SRCSLOT_LEFT_PCM_RECORD 10 352 #define SRCSLOT_RIGHT_PCM_RECORD 11 353 #define SRCSLOT_PHONE_LINE_1_ADC 12 354 #define SRCSLOT_MIC_ADC 13 355 #define SRCSLOT_PHONE_LINE_2_ADC 17 356 #define SRCSLOT_HEADSET_ADC 18 357 #define SRCSLOT_SECONDARY_LEFT_PCM_RECORD 20 358 #define SRCSLOT_SECONDARY_RIGHT_PCM_RECORD 21 359 #define SRCSLOT_SECONDARY_PHONE_LINE_1_ADC 22 360 #define SRCSLOT_SECONDARY_MIC_ADC 23 361 #define SRCSLOT_SECONDARY_PHONE_LINE_2_ADC 27 362 #define SRCSLOT_SECONDARY_HEADSET_ADC 28 363 364 /* Source Slot Numbers - Others */ 365 #define SRCSLOT_POWER_DOWN 31 366 367 /* MIDI modes */ 368 #define CS4281_MODE_OUTPUT (1<<0) 369 #define CS4281_MODE_INPUT (1<<1) 370 371 /* joystick bits */ 372 /* Bits for JSPT */ 373 #define JSPT_CAX 0x00000001 374 #define JSPT_CAY 0x00000002 375 #define JSPT_CBX 0x00000004 376 #define JSPT_CBY 0x00000008 377 #define JSPT_BA1 0x00000010 378 #define JSPT_BA2 0x00000020 379 #define JSPT_BB1 0x00000040 380 #define JSPT_BB2 0x00000080 381 382 /* Bits for JSCTL */ 383 #define JSCTL_SP_MASK 0x00000003 384 #define JSCTL_SP_SLOW 0x00000000 385 #define JSCTL_SP_MEDIUM_SLOW 0x00000001 386 #define JSCTL_SP_MEDIUM_FAST 0x00000002 387 #define JSCTL_SP_FAST 0x00000003 388 #define JSCTL_ARE 0x00000004 389 390 /* Data register pairs masks */ 391 #define JSC1_Y1V_MASK 0x0000FFFF 392 #define JSC1_X1V_MASK 0xFFFF0000 393 #define JSC1_Y1V_SHIFT 0 394 #define JSC1_X1V_SHIFT 16 395 #define JSC2_Y2V_MASK 0x0000FFFF 396 #define JSC2_X2V_MASK 0xFFFF0000 397 #define JSC2_Y2V_SHIFT 0 398 #define JSC2_X2V_SHIFT 16 399 400 /* JS GPIO */ 401 #define JSIO_DAX 0x00000001 402 #define JSIO_DAY 0x00000002 403 #define JSIO_DBX 0x00000004 404 #define JSIO_DBY 0x00000008 405 #define JSIO_AXOE 0x00000010 406 #define JSIO_AYOE 0x00000020 407 #define JSIO_BXOE 0x00000040 408 #define JSIO_BYOE 0x00000080 409 410 /* 411 * 412 */ 413 414 struct cs4281_dma { 415 struct snd_pcm_substream *substream; 416 unsigned int regDBA; /* offset to DBA register */ 417 unsigned int regDCA; /* offset to DCA register */ 418 unsigned int regDBC; /* offset to DBC register */ 419 unsigned int regDCC; /* offset to DCC register */ 420 unsigned int regDMR; /* offset to DMR register */ 421 unsigned int regDCR; /* offset to DCR register */ 422 unsigned int regHDSR; /* offset to HDSR register */ 423 unsigned int regFCR; /* offset to FCR register */ 424 unsigned int regFSIC; /* offset to FSIC register */ 425 unsigned int valDMR; /* DMA mode */ 426 unsigned int valDCR; /* DMA command */ 427 unsigned int valFCR; /* FIFO control */ 428 unsigned int fifo_offset; /* FIFO offset within BA1 */ 429 unsigned char left_slot; /* FIFO left slot */ 430 unsigned char right_slot; /* FIFO right slot */ 431 int frag; /* period number */ 432 }; 433 434 #define SUSPEND_REGISTERS 20 435 436 struct cs4281 { 437 int irq; 438 439 void __iomem *ba0; /* virtual (accessible) address */ 440 void __iomem *ba1; /* virtual (accessible) address */ 441 unsigned long ba0_addr; 442 unsigned long ba1_addr; 443 444 int dual_codec; 445 446 struct snd_ac97_bus *ac97_bus; 447 struct snd_ac97 *ac97; 448 struct snd_ac97 *ac97_secondary; 449 450 struct pci_dev *pci; 451 struct snd_card *card; 452 struct snd_pcm *pcm; 453 struct snd_rawmidi *rmidi; 454 struct snd_rawmidi_substream *midi_input; 455 struct snd_rawmidi_substream *midi_output; 456 457 struct cs4281_dma dma[4]; 458 459 unsigned char src_left_play_slot; 460 unsigned char src_right_play_slot; 461 unsigned char src_left_rec_slot; 462 unsigned char src_right_rec_slot; 463 464 unsigned int spurious_dhtc_irq; 465 unsigned int spurious_dtc_irq; 466 467 spinlock_t reg_lock; 468 unsigned int midcr; 469 unsigned int uartm; 470 471 struct gameport *gameport; 472 473 #ifdef CONFIG_PM_SLEEP 474 u32 suspend_regs[SUSPEND_REGISTERS]; 475 #endif 476 477 }; 478 479 static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id); 480 481 static const struct pci_device_id snd_cs4281_ids[] = { 482 { PCI_VDEVICE(CIRRUS, 0x6005), 0, }, /* CS4281 */ 483 { 0, } 484 }; 485 486 MODULE_DEVICE_TABLE(pci, snd_cs4281_ids); 487 488 /* 489 * constants 490 */ 491 492 #define CS4281_FIFO_SIZE 32 493 494 /* 495 * common I/O routines 496 */ 497 498 static inline void snd_cs4281_pokeBA0(struct cs4281 *chip, unsigned long offset, 499 unsigned int val) 500 { 501 writel(val, chip->ba0 + offset); 502 } 503 504 static inline unsigned int snd_cs4281_peekBA0(struct cs4281 *chip, unsigned long offset) 505 { 506 return readl(chip->ba0 + offset); 507 } 508 509 static void snd_cs4281_ac97_write(struct snd_ac97 *ac97, 510 unsigned short reg, unsigned short val) 511 { 512 /* 513 * 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address 514 * 2. Write ACCDA = Command Data Register = 470h for data to write to AC97 515 * 3. Write ACCTL = Control Register = 460h for initiating the write 516 * 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h 517 * 5. if DCV not cleared, break and return error 518 */ 519 struct cs4281 *chip = ac97->private_data; 520 int count; 521 522 /* 523 * Setup the AC97 control registers on the CS461x to send the 524 * appropriate command to the AC97 to perform the read. 525 * ACCAD = Command Address Register = 46Ch 526 * ACCDA = Command Data Register = 470h 527 * ACCTL = Control Register = 460h 528 * set DCV - will clear when process completed 529 * reset CRW - Write command 530 * set VFRM - valid frame enabled 531 * set ESYN - ASYNC generation enabled 532 * set RSTN - ARST# inactive, AC97 codec not reset 533 */ 534 snd_cs4281_pokeBA0(chip, BA0_ACCAD, reg); 535 snd_cs4281_pokeBA0(chip, BA0_ACCDA, val); 536 snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_DCV | BA0_ACCTL_VFRM | 537 BA0_ACCTL_ESYN | (ac97->num ? BA0_ACCTL_TC : 0)); 538 for (count = 0; count < 2000; count++) { 539 /* 540 * First, we want to wait for a short time. 541 */ 542 udelay(10); 543 /* 544 * Now, check to see if the write has completed. 545 * ACCTL = 460h, DCV should be reset by now and 460h = 07h 546 */ 547 if (!(snd_cs4281_peekBA0(chip, BA0_ACCTL) & BA0_ACCTL_DCV)) { 548 return; 549 } 550 } 551 dev_err(chip->card->dev, 552 "AC'97 write problem, reg = 0x%x, val = 0x%x\n", reg, val); 553 } 554 555 static unsigned short snd_cs4281_ac97_read(struct snd_ac97 *ac97, 556 unsigned short reg) 557 { 558 struct cs4281 *chip = ac97->private_data; 559 int count; 560 unsigned short result; 561 // FIXME: volatile is necessary in the following due to a bug of 562 // some gcc versions 563 volatile int ac97_num = ((volatile struct snd_ac97 *)ac97)->num; 564 565 /* 566 * 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address 567 * 2. Write ACCDA = Command Data Register = 470h for data to write to AC97 568 * 3. Write ACCTL = Control Register = 460h for initiating the write 569 * 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h 570 * 5. if DCV not cleared, break and return error 571 * 6. Read ACSTS = Status Register = 464h, check VSTS bit 572 */ 573 574 snd_cs4281_peekBA0(chip, ac97_num ? BA0_ACSDA2 : BA0_ACSDA); 575 576 /* 577 * Setup the AC97 control registers on the CS461x to send the 578 * appropriate command to the AC97 to perform the read. 579 * ACCAD = Command Address Register = 46Ch 580 * ACCDA = Command Data Register = 470h 581 * ACCTL = Control Register = 460h 582 * set DCV - will clear when process completed 583 * set CRW - Read command 584 * set VFRM - valid frame enabled 585 * set ESYN - ASYNC generation enabled 586 * set RSTN - ARST# inactive, AC97 codec not reset 587 */ 588 589 snd_cs4281_pokeBA0(chip, BA0_ACCAD, reg); 590 snd_cs4281_pokeBA0(chip, BA0_ACCDA, 0); 591 snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_DCV | BA0_ACCTL_CRW | 592 BA0_ACCTL_VFRM | BA0_ACCTL_ESYN | 593 (ac97_num ? BA0_ACCTL_TC : 0)); 594 595 596 /* 597 * Wait for the read to occur. 598 */ 599 for (count = 0; count < 500; count++) { 600 /* 601 * First, we want to wait for a short time. 602 */ 603 udelay(10); 604 /* 605 * Now, check to see if the read has completed. 606 * ACCTL = 460h, DCV should be reset by now and 460h = 17h 607 */ 608 if (!(snd_cs4281_peekBA0(chip, BA0_ACCTL) & BA0_ACCTL_DCV)) 609 goto __ok1; 610 } 611 612 dev_err(chip->card->dev, 613 "AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg); 614 result = 0xffff; 615 goto __end; 616 617 __ok1: 618 /* 619 * Wait for the valid status bit to go active. 620 */ 621 for (count = 0; count < 100; count++) { 622 /* 623 * Read the AC97 status register. 624 * ACSTS = Status Register = 464h 625 * VSTS - Valid Status 626 */ 627 if (snd_cs4281_peekBA0(chip, ac97_num ? BA0_ACSTS2 : BA0_ACSTS) & BA0_ACSTS_VSTS) 628 goto __ok2; 629 udelay(10); 630 } 631 632 dev_err(chip->card->dev, 633 "AC'97 read problem (ACSTS_VSTS), reg = 0x%x\n", reg); 634 result = 0xffff; 635 goto __end; 636 637 __ok2: 638 /* 639 * Read the data returned from the AC97 register. 640 * ACSDA = Status Data Register = 474h 641 */ 642 result = snd_cs4281_peekBA0(chip, ac97_num ? BA0_ACSDA2 : BA0_ACSDA); 643 644 __end: 645 return result; 646 } 647 648 /* 649 * PCM part 650 */ 651 652 static int snd_cs4281_trigger(struct snd_pcm_substream *substream, int cmd) 653 { 654 struct cs4281_dma *dma = substream->runtime->private_data; 655 struct cs4281 *chip = snd_pcm_substream_chip(substream); 656 657 spin_lock(&chip->reg_lock); 658 switch (cmd) { 659 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 660 dma->valDCR |= BA0_DCR_MSK; 661 dma->valFCR |= BA0_FCR_FEN; 662 break; 663 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 664 dma->valDCR &= ~BA0_DCR_MSK; 665 dma->valFCR &= ~BA0_FCR_FEN; 666 break; 667 case SNDRV_PCM_TRIGGER_START: 668 case SNDRV_PCM_TRIGGER_RESUME: 669 snd_cs4281_pokeBA0(chip, dma->regDMR, dma->valDMR & ~BA0_DMR_DMA); 670 dma->valDMR |= BA0_DMR_DMA; 671 dma->valDCR &= ~BA0_DCR_MSK; 672 dma->valFCR |= BA0_FCR_FEN; 673 break; 674 case SNDRV_PCM_TRIGGER_STOP: 675 case SNDRV_PCM_TRIGGER_SUSPEND: 676 dma->valDMR &= ~(BA0_DMR_DMA|BA0_DMR_POLL); 677 dma->valDCR |= BA0_DCR_MSK; 678 dma->valFCR &= ~BA0_FCR_FEN; 679 /* Leave wave playback FIFO enabled for FM */ 680 if (dma->regFCR != BA0_FCR0) 681 dma->valFCR &= ~BA0_FCR_FEN; 682 break; 683 default: 684 spin_unlock(&chip->reg_lock); 685 return -EINVAL; 686 } 687 snd_cs4281_pokeBA0(chip, dma->regDMR, dma->valDMR); 688 snd_cs4281_pokeBA0(chip, dma->regFCR, dma->valFCR); 689 snd_cs4281_pokeBA0(chip, dma->regDCR, dma->valDCR); 690 spin_unlock(&chip->reg_lock); 691 return 0; 692 } 693 694 static unsigned int snd_cs4281_rate(unsigned int rate, unsigned int *real_rate) 695 { 696 unsigned int val; 697 698 if (real_rate) 699 *real_rate = rate; 700 /* special "hardcoded" rates */ 701 switch (rate) { 702 case 8000: return 5; 703 case 11025: return 4; 704 case 16000: return 3; 705 case 22050: return 2; 706 case 44100: return 1; 707 case 48000: return 0; 708 default: 709 break; 710 } 711 val = 1536000 / rate; 712 if (real_rate) 713 *real_rate = 1536000 / val; 714 return val; 715 } 716 717 static void snd_cs4281_mode(struct cs4281 *chip, struct cs4281_dma *dma, 718 struct snd_pcm_runtime *runtime, 719 int capture, int src) 720 { 721 int rec_mono; 722 723 dma->valDMR = BA0_DMR_TYPE_SINGLE | BA0_DMR_AUTO | 724 (capture ? BA0_DMR_TR_WRITE : BA0_DMR_TR_READ); 725 if (runtime->channels == 1) 726 dma->valDMR |= BA0_DMR_MONO; 727 if (snd_pcm_format_unsigned(runtime->format) > 0) 728 dma->valDMR |= BA0_DMR_USIGN; 729 if (snd_pcm_format_big_endian(runtime->format) > 0) 730 dma->valDMR |= BA0_DMR_BEND; 731 switch (snd_pcm_format_width(runtime->format)) { 732 case 8: dma->valDMR |= BA0_DMR_SIZE8; 733 if (runtime->channels == 1) 734 dma->valDMR |= BA0_DMR_SWAPC; 735 break; 736 case 32: dma->valDMR |= BA0_DMR_SIZE20; break; 737 } 738 dma->frag = 0; /* for workaround */ 739 dma->valDCR = BA0_DCR_TCIE | BA0_DCR_MSK; 740 if (runtime->buffer_size != runtime->period_size) 741 dma->valDCR |= BA0_DCR_HTCIE; 742 /* Initialize DMA */ 743 snd_cs4281_pokeBA0(chip, dma->regDBA, runtime->dma_addr); 744 snd_cs4281_pokeBA0(chip, dma->regDBC, runtime->buffer_size - 1); 745 rec_mono = (chip->dma[1].valDMR & BA0_DMR_MONO) == BA0_DMR_MONO; 746 snd_cs4281_pokeBA0(chip, BA0_SRCSA, (chip->src_left_play_slot << 0) | 747 (chip->src_right_play_slot << 8) | 748 (chip->src_left_rec_slot << 16) | 749 ((rec_mono ? 31 : chip->src_right_rec_slot) << 24)); 750 if (!src) 751 goto __skip_src; 752 if (!capture) { 753 if (dma->left_slot == chip->src_left_play_slot) { 754 unsigned int val = snd_cs4281_rate(runtime->rate, NULL); 755 snd_BUG_ON(dma->right_slot != chip->src_right_play_slot); 756 snd_cs4281_pokeBA0(chip, BA0_DACSR, val); 757 } 758 } else { 759 if (dma->left_slot == chip->src_left_rec_slot) { 760 unsigned int val = snd_cs4281_rate(runtime->rate, NULL); 761 snd_BUG_ON(dma->right_slot != chip->src_right_rec_slot); 762 snd_cs4281_pokeBA0(chip, BA0_ADCSR, val); 763 } 764 } 765 __skip_src: 766 /* Deactivate wave playback FIFO before changing slot assignments */ 767 if (dma->regFCR == BA0_FCR0) 768 snd_cs4281_pokeBA0(chip, dma->regFCR, snd_cs4281_peekBA0(chip, dma->regFCR) & ~BA0_FCR_FEN); 769 /* Initialize FIFO */ 770 dma->valFCR = BA0_FCR_LS(dma->left_slot) | 771 BA0_FCR_RS(capture && (dma->valDMR & BA0_DMR_MONO) ? 31 : dma->right_slot) | 772 BA0_FCR_SZ(CS4281_FIFO_SIZE) | 773 BA0_FCR_OF(dma->fifo_offset); 774 snd_cs4281_pokeBA0(chip, dma->regFCR, dma->valFCR | (capture ? BA0_FCR_PSH : 0)); 775 /* Activate FIFO again for FM playback */ 776 if (dma->regFCR == BA0_FCR0) 777 snd_cs4281_pokeBA0(chip, dma->regFCR, dma->valFCR | BA0_FCR_FEN); 778 /* Clear FIFO Status and Interrupt Control Register */ 779 snd_cs4281_pokeBA0(chip, dma->regFSIC, 0); 780 } 781 782 static int snd_cs4281_playback_prepare(struct snd_pcm_substream *substream) 783 { 784 struct snd_pcm_runtime *runtime = substream->runtime; 785 struct cs4281_dma *dma = runtime->private_data; 786 struct cs4281 *chip = snd_pcm_substream_chip(substream); 787 788 spin_lock_irq(&chip->reg_lock); 789 snd_cs4281_mode(chip, dma, runtime, 0, 1); 790 spin_unlock_irq(&chip->reg_lock); 791 return 0; 792 } 793 794 static int snd_cs4281_capture_prepare(struct snd_pcm_substream *substream) 795 { 796 struct snd_pcm_runtime *runtime = substream->runtime; 797 struct cs4281_dma *dma = runtime->private_data; 798 struct cs4281 *chip = snd_pcm_substream_chip(substream); 799 800 spin_lock_irq(&chip->reg_lock); 801 snd_cs4281_mode(chip, dma, runtime, 1, 1); 802 spin_unlock_irq(&chip->reg_lock); 803 return 0; 804 } 805 806 static snd_pcm_uframes_t snd_cs4281_pointer(struct snd_pcm_substream *substream) 807 { 808 struct snd_pcm_runtime *runtime = substream->runtime; 809 struct cs4281_dma *dma = runtime->private_data; 810 struct cs4281 *chip = snd_pcm_substream_chip(substream); 811 812 /* 813 dev_dbg(chip->card->dev, 814 "DCC = 0x%x, buffer_size = 0x%x, jiffies = %li\n", 815 snd_cs4281_peekBA0(chip, dma->regDCC), runtime->buffer_size, 816 jiffies); 817 */ 818 return runtime->buffer_size - 819 snd_cs4281_peekBA0(chip, dma->regDCC) - 1; 820 } 821 822 static const struct snd_pcm_hardware snd_cs4281_playback = 823 { 824 .info = SNDRV_PCM_INFO_MMAP | 825 SNDRV_PCM_INFO_INTERLEAVED | 826 SNDRV_PCM_INFO_MMAP_VALID | 827 SNDRV_PCM_INFO_PAUSE | 828 SNDRV_PCM_INFO_RESUME, 829 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 830 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_S16_LE | 831 SNDRV_PCM_FMTBIT_U16_BE | SNDRV_PCM_FMTBIT_S16_BE | 832 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_S32_LE | 833 SNDRV_PCM_FMTBIT_U32_BE | SNDRV_PCM_FMTBIT_S32_BE, 834 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 835 .rate_min = 4000, 836 .rate_max = 48000, 837 .channels_min = 1, 838 .channels_max = 2, 839 .buffer_bytes_max = (512*1024), 840 .period_bytes_min = 64, 841 .period_bytes_max = (512*1024), 842 .periods_min = 1, 843 .periods_max = 2, 844 .fifo_size = CS4281_FIFO_SIZE, 845 }; 846 847 static const struct snd_pcm_hardware snd_cs4281_capture = 848 { 849 .info = SNDRV_PCM_INFO_MMAP | 850 SNDRV_PCM_INFO_INTERLEAVED | 851 SNDRV_PCM_INFO_MMAP_VALID | 852 SNDRV_PCM_INFO_PAUSE | 853 SNDRV_PCM_INFO_RESUME, 854 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 855 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_S16_LE | 856 SNDRV_PCM_FMTBIT_U16_BE | SNDRV_PCM_FMTBIT_S16_BE | 857 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_S32_LE | 858 SNDRV_PCM_FMTBIT_U32_BE | SNDRV_PCM_FMTBIT_S32_BE, 859 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 860 .rate_min = 4000, 861 .rate_max = 48000, 862 .channels_min = 1, 863 .channels_max = 2, 864 .buffer_bytes_max = (512*1024), 865 .period_bytes_min = 64, 866 .period_bytes_max = (512*1024), 867 .periods_min = 1, 868 .periods_max = 2, 869 .fifo_size = CS4281_FIFO_SIZE, 870 }; 871 872 static int snd_cs4281_playback_open(struct snd_pcm_substream *substream) 873 { 874 struct cs4281 *chip = snd_pcm_substream_chip(substream); 875 struct snd_pcm_runtime *runtime = substream->runtime; 876 struct cs4281_dma *dma; 877 878 dma = &chip->dma[0]; 879 dma->substream = substream; 880 dma->left_slot = 0; 881 dma->right_slot = 1; 882 runtime->private_data = dma; 883 runtime->hw = snd_cs4281_playback; 884 /* should be detected from the AC'97 layer, but it seems 885 that although CS4297A rev B reports 18-bit ADC resolution, 886 samples are 20-bit */ 887 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20); 888 return 0; 889 } 890 891 static int snd_cs4281_capture_open(struct snd_pcm_substream *substream) 892 { 893 struct cs4281 *chip = snd_pcm_substream_chip(substream); 894 struct snd_pcm_runtime *runtime = substream->runtime; 895 struct cs4281_dma *dma; 896 897 dma = &chip->dma[1]; 898 dma->substream = substream; 899 dma->left_slot = 10; 900 dma->right_slot = 11; 901 runtime->private_data = dma; 902 runtime->hw = snd_cs4281_capture; 903 /* should be detected from the AC'97 layer, but it seems 904 that although CS4297A rev B reports 18-bit ADC resolution, 905 samples are 20-bit */ 906 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20); 907 return 0; 908 } 909 910 static int snd_cs4281_playback_close(struct snd_pcm_substream *substream) 911 { 912 struct cs4281_dma *dma = substream->runtime->private_data; 913 914 dma->substream = NULL; 915 return 0; 916 } 917 918 static int snd_cs4281_capture_close(struct snd_pcm_substream *substream) 919 { 920 struct cs4281_dma *dma = substream->runtime->private_data; 921 922 dma->substream = NULL; 923 return 0; 924 } 925 926 static const struct snd_pcm_ops snd_cs4281_playback_ops = { 927 .open = snd_cs4281_playback_open, 928 .close = snd_cs4281_playback_close, 929 .prepare = snd_cs4281_playback_prepare, 930 .trigger = snd_cs4281_trigger, 931 .pointer = snd_cs4281_pointer, 932 }; 933 934 static const struct snd_pcm_ops snd_cs4281_capture_ops = { 935 .open = snd_cs4281_capture_open, 936 .close = snd_cs4281_capture_close, 937 .prepare = snd_cs4281_capture_prepare, 938 .trigger = snd_cs4281_trigger, 939 .pointer = snd_cs4281_pointer, 940 }; 941 942 static int snd_cs4281_pcm(struct cs4281 *chip, int device) 943 { 944 struct snd_pcm *pcm; 945 int err; 946 947 err = snd_pcm_new(chip->card, "CS4281", device, 1, 1, &pcm); 948 if (err < 0) 949 return err; 950 951 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4281_playback_ops); 952 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs4281_capture_ops); 953 954 pcm->private_data = chip; 955 pcm->info_flags = 0; 956 strcpy(pcm->name, "CS4281"); 957 chip->pcm = pcm; 958 959 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, 960 64*1024, 512*1024); 961 962 return 0; 963 } 964 965 /* 966 * Mixer section 967 */ 968 969 #define CS_VOL_MASK 0x1f 970 971 static int snd_cs4281_info_volume(struct snd_kcontrol *kcontrol, 972 struct snd_ctl_elem_info *uinfo) 973 { 974 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 975 uinfo->count = 2; 976 uinfo->value.integer.min = 0; 977 uinfo->value.integer.max = CS_VOL_MASK; 978 return 0; 979 } 980 981 static int snd_cs4281_get_volume(struct snd_kcontrol *kcontrol, 982 struct snd_ctl_elem_value *ucontrol) 983 { 984 struct cs4281 *chip = snd_kcontrol_chip(kcontrol); 985 int regL = (kcontrol->private_value >> 16) & 0xffff; 986 int regR = kcontrol->private_value & 0xffff; 987 int volL, volR; 988 989 volL = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regL) & CS_VOL_MASK); 990 volR = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regR) & CS_VOL_MASK); 991 992 ucontrol->value.integer.value[0] = volL; 993 ucontrol->value.integer.value[1] = volR; 994 return 0; 995 } 996 997 static int snd_cs4281_put_volume(struct snd_kcontrol *kcontrol, 998 struct snd_ctl_elem_value *ucontrol) 999 { 1000 struct cs4281 *chip = snd_kcontrol_chip(kcontrol); 1001 int change = 0; 1002 int regL = (kcontrol->private_value >> 16) & 0xffff; 1003 int regR = kcontrol->private_value & 0xffff; 1004 int volL, volR; 1005 1006 volL = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regL) & CS_VOL_MASK); 1007 volR = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regR) & CS_VOL_MASK); 1008 1009 if (ucontrol->value.integer.value[0] != volL) { 1010 volL = CS_VOL_MASK - (ucontrol->value.integer.value[0] & CS_VOL_MASK); 1011 snd_cs4281_pokeBA0(chip, regL, volL); 1012 change = 1; 1013 } 1014 if (ucontrol->value.integer.value[1] != volR) { 1015 volR = CS_VOL_MASK - (ucontrol->value.integer.value[1] & CS_VOL_MASK); 1016 snd_cs4281_pokeBA0(chip, regR, volR); 1017 change = 1; 1018 } 1019 return change; 1020 } 1021 1022 static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -4650, 150, 0); 1023 1024 static const struct snd_kcontrol_new snd_cs4281_fm_vol = 1025 { 1026 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1027 .name = "Synth Playback Volume", 1028 .info = snd_cs4281_info_volume, 1029 .get = snd_cs4281_get_volume, 1030 .put = snd_cs4281_put_volume, 1031 .private_value = ((BA0_FMLVC << 16) | BA0_FMRVC), 1032 .tlv = { .p = db_scale_dsp }, 1033 }; 1034 1035 static const struct snd_kcontrol_new snd_cs4281_pcm_vol = 1036 { 1037 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1038 .name = "PCM Stream Playback Volume", 1039 .info = snd_cs4281_info_volume, 1040 .get = snd_cs4281_get_volume, 1041 .put = snd_cs4281_put_volume, 1042 .private_value = ((BA0_PPLVC << 16) | BA0_PPRVC), 1043 .tlv = { .p = db_scale_dsp }, 1044 }; 1045 1046 static void snd_cs4281_mixer_free_ac97_bus(struct snd_ac97_bus *bus) 1047 { 1048 struct cs4281 *chip = bus->private_data; 1049 chip->ac97_bus = NULL; 1050 } 1051 1052 static void snd_cs4281_mixer_free_ac97(struct snd_ac97 *ac97) 1053 { 1054 struct cs4281 *chip = ac97->private_data; 1055 if (ac97->num) 1056 chip->ac97_secondary = NULL; 1057 else 1058 chip->ac97 = NULL; 1059 } 1060 1061 static int snd_cs4281_mixer(struct cs4281 *chip) 1062 { 1063 struct snd_card *card = chip->card; 1064 struct snd_ac97_template ac97; 1065 int err; 1066 static const struct snd_ac97_bus_ops ops = { 1067 .write = snd_cs4281_ac97_write, 1068 .read = snd_cs4281_ac97_read, 1069 }; 1070 1071 if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0) 1072 return err; 1073 chip->ac97_bus->private_free = snd_cs4281_mixer_free_ac97_bus; 1074 1075 memset(&ac97, 0, sizeof(ac97)); 1076 ac97.private_data = chip; 1077 ac97.private_free = snd_cs4281_mixer_free_ac97; 1078 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0) 1079 return err; 1080 if (chip->dual_codec) { 1081 ac97.num = 1; 1082 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_secondary)) < 0) 1083 return err; 1084 } 1085 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4281_fm_vol, chip))) < 0) 1086 return err; 1087 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4281_pcm_vol, chip))) < 0) 1088 return err; 1089 return 0; 1090 } 1091 1092 1093 /* 1094 * proc interface 1095 */ 1096 1097 static void snd_cs4281_proc_read(struct snd_info_entry *entry, 1098 struct snd_info_buffer *buffer) 1099 { 1100 struct cs4281 *chip = entry->private_data; 1101 1102 snd_iprintf(buffer, "Cirrus Logic CS4281\n\n"); 1103 snd_iprintf(buffer, "Spurious half IRQs : %u\n", chip->spurious_dhtc_irq); 1104 snd_iprintf(buffer, "Spurious end IRQs : %u\n", chip->spurious_dtc_irq); 1105 } 1106 1107 static ssize_t snd_cs4281_BA0_read(struct snd_info_entry *entry, 1108 void *file_private_data, 1109 struct file *file, char __user *buf, 1110 size_t count, loff_t pos) 1111 { 1112 struct cs4281 *chip = entry->private_data; 1113 1114 if (copy_to_user_fromio(buf, chip->ba0 + pos, count)) 1115 return -EFAULT; 1116 return count; 1117 } 1118 1119 static ssize_t snd_cs4281_BA1_read(struct snd_info_entry *entry, 1120 void *file_private_data, 1121 struct file *file, char __user *buf, 1122 size_t count, loff_t pos) 1123 { 1124 struct cs4281 *chip = entry->private_data; 1125 1126 if (copy_to_user_fromio(buf, chip->ba1 + pos, count)) 1127 return -EFAULT; 1128 return count; 1129 } 1130 1131 static const struct snd_info_entry_ops snd_cs4281_proc_ops_BA0 = { 1132 .read = snd_cs4281_BA0_read, 1133 }; 1134 1135 static const struct snd_info_entry_ops snd_cs4281_proc_ops_BA1 = { 1136 .read = snd_cs4281_BA1_read, 1137 }; 1138 1139 static void snd_cs4281_proc_init(struct cs4281 *chip) 1140 { 1141 struct snd_info_entry *entry; 1142 1143 snd_card_ro_proc_new(chip->card, "cs4281", chip, snd_cs4281_proc_read); 1144 if (! snd_card_proc_new(chip->card, "cs4281_BA0", &entry)) { 1145 entry->content = SNDRV_INFO_CONTENT_DATA; 1146 entry->private_data = chip; 1147 entry->c.ops = &snd_cs4281_proc_ops_BA0; 1148 entry->size = CS4281_BA0_SIZE; 1149 } 1150 if (! snd_card_proc_new(chip->card, "cs4281_BA1", &entry)) { 1151 entry->content = SNDRV_INFO_CONTENT_DATA; 1152 entry->private_data = chip; 1153 entry->c.ops = &snd_cs4281_proc_ops_BA1; 1154 entry->size = CS4281_BA1_SIZE; 1155 } 1156 } 1157 1158 /* 1159 * joystick support 1160 */ 1161 1162 #if IS_REACHABLE(CONFIG_GAMEPORT) 1163 1164 static void snd_cs4281_gameport_trigger(struct gameport *gameport) 1165 { 1166 struct cs4281 *chip = gameport_get_port_data(gameport); 1167 1168 if (snd_BUG_ON(!chip)) 1169 return; 1170 snd_cs4281_pokeBA0(chip, BA0_JSPT, 0xff); 1171 } 1172 1173 static unsigned char snd_cs4281_gameport_read(struct gameport *gameport) 1174 { 1175 struct cs4281 *chip = gameport_get_port_data(gameport); 1176 1177 if (snd_BUG_ON(!chip)) 1178 return 0; 1179 return snd_cs4281_peekBA0(chip, BA0_JSPT); 1180 } 1181 1182 #ifdef COOKED_MODE 1183 static int snd_cs4281_gameport_cooked_read(struct gameport *gameport, 1184 int *axes, int *buttons) 1185 { 1186 struct cs4281 *chip = gameport_get_port_data(gameport); 1187 unsigned js1, js2, jst; 1188 1189 if (snd_BUG_ON(!chip)) 1190 return 0; 1191 1192 js1 = snd_cs4281_peekBA0(chip, BA0_JSC1); 1193 js2 = snd_cs4281_peekBA0(chip, BA0_JSC2); 1194 jst = snd_cs4281_peekBA0(chip, BA0_JSPT); 1195 1196 *buttons = (~jst >> 4) & 0x0F; 1197 1198 axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF; 1199 axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF; 1200 axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF; 1201 axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF; 1202 1203 for (jst = 0; jst < 4; ++jst) 1204 if (axes[jst] == 0xFFFF) axes[jst] = -1; 1205 return 0; 1206 } 1207 #else 1208 #define snd_cs4281_gameport_cooked_read NULL 1209 #endif 1210 1211 static int snd_cs4281_gameport_open(struct gameport *gameport, int mode) 1212 { 1213 switch (mode) { 1214 #ifdef COOKED_MODE 1215 case GAMEPORT_MODE_COOKED: 1216 return 0; 1217 #endif 1218 case GAMEPORT_MODE_RAW: 1219 return 0; 1220 default: 1221 return -1; 1222 } 1223 return 0; 1224 } 1225 1226 static int snd_cs4281_create_gameport(struct cs4281 *chip) 1227 { 1228 struct gameport *gp; 1229 1230 chip->gameport = gp = gameport_allocate_port(); 1231 if (!gp) { 1232 dev_err(chip->card->dev, 1233 "cannot allocate memory for gameport\n"); 1234 return -ENOMEM; 1235 } 1236 1237 gameport_set_name(gp, "CS4281 Gameport"); 1238 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci)); 1239 gameport_set_dev_parent(gp, &chip->pci->dev); 1240 gp->open = snd_cs4281_gameport_open; 1241 gp->read = snd_cs4281_gameport_read; 1242 gp->trigger = snd_cs4281_gameport_trigger; 1243 gp->cooked_read = snd_cs4281_gameport_cooked_read; 1244 gameport_set_port_data(gp, chip); 1245 1246 snd_cs4281_pokeBA0(chip, BA0_JSIO, 0xFF); // ? 1247 snd_cs4281_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW); 1248 1249 gameport_register_port(gp); 1250 1251 return 0; 1252 } 1253 1254 static void snd_cs4281_free_gameport(struct cs4281 *chip) 1255 { 1256 if (chip->gameport) { 1257 gameport_unregister_port(chip->gameport); 1258 chip->gameport = NULL; 1259 } 1260 } 1261 #else 1262 static inline int snd_cs4281_create_gameport(struct cs4281 *chip) { return -ENOSYS; } 1263 static inline void snd_cs4281_free_gameport(struct cs4281 *chip) { } 1264 #endif /* IS_REACHABLE(CONFIG_GAMEPORT) */ 1265 1266 static int snd_cs4281_free(struct cs4281 *chip) 1267 { 1268 snd_cs4281_free_gameport(chip); 1269 1270 /* Mask interrupts */ 1271 snd_cs4281_pokeBA0(chip, BA0_HIMR, 0x7fffffff); 1272 /* Stop the DLL Clock logic. */ 1273 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, 0); 1274 /* Sound System Power Management - Turn Everything OFF */ 1275 snd_cs4281_pokeBA0(chip, BA0_SSPM, 0); 1276 /* PCI interface - D3 state */ 1277 pci_set_power_state(chip->pci, PCI_D3hot); 1278 1279 if (chip->irq >= 0) 1280 free_irq(chip->irq, chip); 1281 iounmap(chip->ba0); 1282 iounmap(chip->ba1); 1283 pci_release_regions(chip->pci); 1284 pci_disable_device(chip->pci); 1285 1286 kfree(chip); 1287 return 0; 1288 } 1289 1290 static int snd_cs4281_dev_free(struct snd_device *device) 1291 { 1292 struct cs4281 *chip = device->device_data; 1293 return snd_cs4281_free(chip); 1294 } 1295 1296 static int snd_cs4281_chip_init(struct cs4281 *chip); /* defined below */ 1297 1298 static int snd_cs4281_create(struct snd_card *card, 1299 struct pci_dev *pci, 1300 struct cs4281 **rchip, 1301 int dual_codec) 1302 { 1303 struct cs4281 *chip; 1304 unsigned int tmp; 1305 int err; 1306 static const struct snd_device_ops ops = { 1307 .dev_free = snd_cs4281_dev_free, 1308 }; 1309 1310 *rchip = NULL; 1311 if ((err = pci_enable_device(pci)) < 0) 1312 return err; 1313 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 1314 if (chip == NULL) { 1315 pci_disable_device(pci); 1316 return -ENOMEM; 1317 } 1318 spin_lock_init(&chip->reg_lock); 1319 chip->card = card; 1320 chip->pci = pci; 1321 chip->irq = -1; 1322 pci_set_master(pci); 1323 if (dual_codec < 0 || dual_codec > 3) { 1324 dev_err(card->dev, "invalid dual_codec option %d\n", dual_codec); 1325 dual_codec = 0; 1326 } 1327 chip->dual_codec = dual_codec; 1328 1329 if ((err = pci_request_regions(pci, "CS4281")) < 0) { 1330 kfree(chip); 1331 pci_disable_device(pci); 1332 return err; 1333 } 1334 chip->ba0_addr = pci_resource_start(pci, 0); 1335 chip->ba1_addr = pci_resource_start(pci, 1); 1336 1337 chip->ba0 = pci_ioremap_bar(pci, 0); 1338 chip->ba1 = pci_ioremap_bar(pci, 1); 1339 if (!chip->ba0 || !chip->ba1) { 1340 snd_cs4281_free(chip); 1341 return -ENOMEM; 1342 } 1343 1344 if (request_irq(pci->irq, snd_cs4281_interrupt, IRQF_SHARED, 1345 KBUILD_MODNAME, chip)) { 1346 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 1347 snd_cs4281_free(chip); 1348 return -ENOMEM; 1349 } 1350 chip->irq = pci->irq; 1351 card->sync_irq = chip->irq; 1352 1353 tmp = snd_cs4281_chip_init(chip); 1354 if (tmp) { 1355 snd_cs4281_free(chip); 1356 return tmp; 1357 } 1358 1359 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 1360 snd_cs4281_free(chip); 1361 return err; 1362 } 1363 1364 snd_cs4281_proc_init(chip); 1365 1366 *rchip = chip; 1367 return 0; 1368 } 1369 1370 static int snd_cs4281_chip_init(struct cs4281 *chip) 1371 { 1372 unsigned int tmp; 1373 unsigned long end_time; 1374 int retry_count = 2; 1375 1376 /* Having EPPMC.FPDN=1 prevent proper chip initialisation */ 1377 tmp = snd_cs4281_peekBA0(chip, BA0_EPPMC); 1378 if (tmp & BA0_EPPMC_FPDN) 1379 snd_cs4281_pokeBA0(chip, BA0_EPPMC, tmp & ~BA0_EPPMC_FPDN); 1380 1381 __retry: 1382 tmp = snd_cs4281_peekBA0(chip, BA0_CFLR); 1383 if (tmp != BA0_CFLR_DEFAULT) { 1384 snd_cs4281_pokeBA0(chip, BA0_CFLR, BA0_CFLR_DEFAULT); 1385 tmp = snd_cs4281_peekBA0(chip, BA0_CFLR); 1386 if (tmp != BA0_CFLR_DEFAULT) { 1387 dev_err(chip->card->dev, 1388 "CFLR setup failed (0x%x)\n", tmp); 1389 return -EIO; 1390 } 1391 } 1392 1393 /* Set the 'Configuration Write Protect' register 1394 * to 4281h. Allows vendor-defined configuration 1395 * space between 0e4h and 0ffh to be written. */ 1396 snd_cs4281_pokeBA0(chip, BA0_CWPR, 0x4281); 1397 1398 if ((tmp = snd_cs4281_peekBA0(chip, BA0_SERC1)) != (BA0_SERC1_SO1EN | BA0_SERC1_AC97)) { 1399 dev_err(chip->card->dev, 1400 "SERC1 AC'97 check failed (0x%x)\n", tmp); 1401 return -EIO; 1402 } 1403 if ((tmp = snd_cs4281_peekBA0(chip, BA0_SERC2)) != (BA0_SERC2_SI1EN | BA0_SERC2_AC97)) { 1404 dev_err(chip->card->dev, 1405 "SERC2 AC'97 check failed (0x%x)\n", tmp); 1406 return -EIO; 1407 } 1408 1409 /* Sound System Power Management */ 1410 snd_cs4281_pokeBA0(chip, BA0_SSPM, BA0_SSPM_MIXEN | BA0_SSPM_CSRCEN | 1411 BA0_SSPM_PSRCEN | BA0_SSPM_JSEN | 1412 BA0_SSPM_ACLEN | BA0_SSPM_FMEN); 1413 1414 /* Serial Port Power Management */ 1415 /* Blast the clock control register to zero so that the 1416 * PLL starts out in a known state, and blast the master serial 1417 * port control register to zero so that the serial ports also 1418 * start out in a known state. */ 1419 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, 0); 1420 snd_cs4281_pokeBA0(chip, BA0_SERMC, 0); 1421 1422 /* Make ESYN go to zero to turn off 1423 * the Sync pulse on the AC97 link. */ 1424 snd_cs4281_pokeBA0(chip, BA0_ACCTL, 0); 1425 udelay(50); 1426 1427 /* Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97 1428 * spec) and then drive it high. This is done for non AC97 modes since 1429 * there might be logic external to the CS4281 that uses the ARST# line 1430 * for a reset. */ 1431 snd_cs4281_pokeBA0(chip, BA0_SPMC, 0); 1432 udelay(50); 1433 snd_cs4281_pokeBA0(chip, BA0_SPMC, BA0_SPMC_RSTN); 1434 msleep(50); 1435 1436 if (chip->dual_codec) 1437 snd_cs4281_pokeBA0(chip, BA0_SPMC, BA0_SPMC_RSTN | BA0_SPMC_ASDI2E); 1438 1439 /* 1440 * Set the serial port timing configuration. 1441 */ 1442 snd_cs4281_pokeBA0(chip, BA0_SERMC, 1443 (chip->dual_codec ? BA0_SERMC_TCID(chip->dual_codec) : BA0_SERMC_TCID(1)) | 1444 BA0_SERMC_PTC_AC97 | BA0_SERMC_MSPE); 1445 1446 /* 1447 * Start the DLL Clock logic. 1448 */ 1449 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, BA0_CLKCR1_DLLP); 1450 msleep(50); 1451 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, BA0_CLKCR1_SWCE | BA0_CLKCR1_DLLP); 1452 1453 /* 1454 * Wait for the DLL ready signal from the clock logic. 1455 */ 1456 end_time = jiffies + HZ; 1457 do { 1458 /* 1459 * Read the AC97 status register to see if we've seen a CODEC 1460 * signal from the AC97 codec. 1461 */ 1462 if (snd_cs4281_peekBA0(chip, BA0_CLKCR1) & BA0_CLKCR1_DLLRDY) 1463 goto __ok0; 1464 schedule_timeout_uninterruptible(1); 1465 } while (time_after_eq(end_time, jiffies)); 1466 1467 dev_err(chip->card->dev, "DLLRDY not seen\n"); 1468 return -EIO; 1469 1470 __ok0: 1471 1472 /* 1473 * The first thing we do here is to enable sync generation. As soon 1474 * as we start receiving bit clock, we'll start producing the SYNC 1475 * signal. 1476 */ 1477 snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_ESYN); 1478 1479 /* 1480 * Wait for the codec ready signal from the AC97 codec. 1481 */ 1482 end_time = jiffies + HZ; 1483 do { 1484 /* 1485 * Read the AC97 status register to see if we've seen a CODEC 1486 * signal from the AC97 codec. 1487 */ 1488 if (snd_cs4281_peekBA0(chip, BA0_ACSTS) & BA0_ACSTS_CRDY) 1489 goto __ok1; 1490 schedule_timeout_uninterruptible(1); 1491 } while (time_after_eq(end_time, jiffies)); 1492 1493 dev_err(chip->card->dev, 1494 "never read codec ready from AC'97 (0x%x)\n", 1495 snd_cs4281_peekBA0(chip, BA0_ACSTS)); 1496 return -EIO; 1497 1498 __ok1: 1499 if (chip->dual_codec) { 1500 end_time = jiffies + HZ; 1501 do { 1502 if (snd_cs4281_peekBA0(chip, BA0_ACSTS2) & BA0_ACSTS_CRDY) 1503 goto __codec2_ok; 1504 schedule_timeout_uninterruptible(1); 1505 } while (time_after_eq(end_time, jiffies)); 1506 dev_info(chip->card->dev, 1507 "secondary codec doesn't respond. disable it...\n"); 1508 chip->dual_codec = 0; 1509 __codec2_ok: ; 1510 } 1511 1512 /* 1513 * Assert the valid frame signal so that we can start sending commands 1514 * to the AC97 codec. 1515 */ 1516 1517 snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_VFRM | BA0_ACCTL_ESYN); 1518 1519 /* 1520 * Wait until we've sampled input slots 3 and 4 as valid, meaning that 1521 * the codec is pumping ADC data across the AC-link. 1522 */ 1523 1524 end_time = jiffies + HZ; 1525 do { 1526 /* 1527 * Read the input slot valid register and see if input slots 3 1528 * 4 are valid yet. 1529 */ 1530 if ((snd_cs4281_peekBA0(chip, BA0_ACISV) & (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4))) == (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4))) 1531 goto __ok2; 1532 schedule_timeout_uninterruptible(1); 1533 } while (time_after_eq(end_time, jiffies)); 1534 1535 if (--retry_count > 0) 1536 goto __retry; 1537 dev_err(chip->card->dev, "never read ISV3 and ISV4 from AC'97\n"); 1538 return -EIO; 1539 1540 __ok2: 1541 1542 /* 1543 * Now, assert valid frame and the slot 3 and 4 valid bits. This will 1544 * commense the transfer of digital audio data to the AC97 codec. 1545 */ 1546 snd_cs4281_pokeBA0(chip, BA0_ACOSV, BA0_ACOSV_SLV(3) | BA0_ACOSV_SLV(4)); 1547 1548 /* 1549 * Initialize DMA structures 1550 */ 1551 for (tmp = 0; tmp < 4; tmp++) { 1552 struct cs4281_dma *dma = &chip->dma[tmp]; 1553 dma->regDBA = BA0_DBA0 + (tmp * 0x10); 1554 dma->regDCA = BA0_DCA0 + (tmp * 0x10); 1555 dma->regDBC = BA0_DBC0 + (tmp * 0x10); 1556 dma->regDCC = BA0_DCC0 + (tmp * 0x10); 1557 dma->regDMR = BA0_DMR0 + (tmp * 8); 1558 dma->regDCR = BA0_DCR0 + (tmp * 8); 1559 dma->regHDSR = BA0_HDSR0 + (tmp * 4); 1560 dma->regFCR = BA0_FCR0 + (tmp * 4); 1561 dma->regFSIC = BA0_FSIC0 + (tmp * 4); 1562 dma->fifo_offset = tmp * CS4281_FIFO_SIZE; 1563 snd_cs4281_pokeBA0(chip, dma->regFCR, 1564 BA0_FCR_LS(31) | 1565 BA0_FCR_RS(31) | 1566 BA0_FCR_SZ(CS4281_FIFO_SIZE) | 1567 BA0_FCR_OF(dma->fifo_offset)); 1568 } 1569 1570 chip->src_left_play_slot = 0; /* AC'97 left PCM playback (3) */ 1571 chip->src_right_play_slot = 1; /* AC'97 right PCM playback (4) */ 1572 chip->src_left_rec_slot = 10; /* AC'97 left PCM record (3) */ 1573 chip->src_right_rec_slot = 11; /* AC'97 right PCM record (4) */ 1574 1575 /* Activate wave playback FIFO for FM playback */ 1576 chip->dma[0].valFCR = BA0_FCR_FEN | BA0_FCR_LS(0) | 1577 BA0_FCR_RS(1) | 1578 BA0_FCR_SZ(CS4281_FIFO_SIZE) | 1579 BA0_FCR_OF(chip->dma[0].fifo_offset); 1580 snd_cs4281_pokeBA0(chip, chip->dma[0].regFCR, chip->dma[0].valFCR); 1581 snd_cs4281_pokeBA0(chip, BA0_SRCSA, (chip->src_left_play_slot << 0) | 1582 (chip->src_right_play_slot << 8) | 1583 (chip->src_left_rec_slot << 16) | 1584 (chip->src_right_rec_slot << 24)); 1585 1586 /* Initialize digital volume */ 1587 snd_cs4281_pokeBA0(chip, BA0_PPLVC, 0); 1588 snd_cs4281_pokeBA0(chip, BA0_PPRVC, 0); 1589 1590 /* Enable IRQs */ 1591 snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI); 1592 /* Unmask interrupts */ 1593 snd_cs4281_pokeBA0(chip, BA0_HIMR, 0x7fffffff & ~( 1594 BA0_HISR_MIDI | 1595 BA0_HISR_DMAI | 1596 BA0_HISR_DMA(0) | 1597 BA0_HISR_DMA(1) | 1598 BA0_HISR_DMA(2) | 1599 BA0_HISR_DMA(3))); 1600 1601 return 0; 1602 } 1603 1604 /* 1605 * MIDI section 1606 */ 1607 1608 static void snd_cs4281_midi_reset(struct cs4281 *chip) 1609 { 1610 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr | BA0_MIDCR_MRST); 1611 udelay(100); 1612 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1613 } 1614 1615 static int snd_cs4281_midi_input_open(struct snd_rawmidi_substream *substream) 1616 { 1617 struct cs4281 *chip = substream->rmidi->private_data; 1618 1619 spin_lock_irq(&chip->reg_lock); 1620 chip->midcr |= BA0_MIDCR_RXE; 1621 chip->midi_input = substream; 1622 if (!(chip->uartm & CS4281_MODE_OUTPUT)) { 1623 snd_cs4281_midi_reset(chip); 1624 } else { 1625 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1626 } 1627 spin_unlock_irq(&chip->reg_lock); 1628 return 0; 1629 } 1630 1631 static int snd_cs4281_midi_input_close(struct snd_rawmidi_substream *substream) 1632 { 1633 struct cs4281 *chip = substream->rmidi->private_data; 1634 1635 spin_lock_irq(&chip->reg_lock); 1636 chip->midcr &= ~(BA0_MIDCR_RXE | BA0_MIDCR_RIE); 1637 chip->midi_input = NULL; 1638 if (!(chip->uartm & CS4281_MODE_OUTPUT)) { 1639 snd_cs4281_midi_reset(chip); 1640 } else { 1641 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1642 } 1643 chip->uartm &= ~CS4281_MODE_INPUT; 1644 spin_unlock_irq(&chip->reg_lock); 1645 return 0; 1646 } 1647 1648 static int snd_cs4281_midi_output_open(struct snd_rawmidi_substream *substream) 1649 { 1650 struct cs4281 *chip = substream->rmidi->private_data; 1651 1652 spin_lock_irq(&chip->reg_lock); 1653 chip->uartm |= CS4281_MODE_OUTPUT; 1654 chip->midcr |= BA0_MIDCR_TXE; 1655 chip->midi_output = substream; 1656 if (!(chip->uartm & CS4281_MODE_INPUT)) { 1657 snd_cs4281_midi_reset(chip); 1658 } else { 1659 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1660 } 1661 spin_unlock_irq(&chip->reg_lock); 1662 return 0; 1663 } 1664 1665 static int snd_cs4281_midi_output_close(struct snd_rawmidi_substream *substream) 1666 { 1667 struct cs4281 *chip = substream->rmidi->private_data; 1668 1669 spin_lock_irq(&chip->reg_lock); 1670 chip->midcr &= ~(BA0_MIDCR_TXE | BA0_MIDCR_TIE); 1671 chip->midi_output = NULL; 1672 if (!(chip->uartm & CS4281_MODE_INPUT)) { 1673 snd_cs4281_midi_reset(chip); 1674 } else { 1675 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1676 } 1677 chip->uartm &= ~CS4281_MODE_OUTPUT; 1678 spin_unlock_irq(&chip->reg_lock); 1679 return 0; 1680 } 1681 1682 static void snd_cs4281_midi_input_trigger(struct snd_rawmidi_substream *substream, int up) 1683 { 1684 unsigned long flags; 1685 struct cs4281 *chip = substream->rmidi->private_data; 1686 1687 spin_lock_irqsave(&chip->reg_lock, flags); 1688 if (up) { 1689 if ((chip->midcr & BA0_MIDCR_RIE) == 0) { 1690 chip->midcr |= BA0_MIDCR_RIE; 1691 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1692 } 1693 } else { 1694 if (chip->midcr & BA0_MIDCR_RIE) { 1695 chip->midcr &= ~BA0_MIDCR_RIE; 1696 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1697 } 1698 } 1699 spin_unlock_irqrestore(&chip->reg_lock, flags); 1700 } 1701 1702 static void snd_cs4281_midi_output_trigger(struct snd_rawmidi_substream *substream, int up) 1703 { 1704 unsigned long flags; 1705 struct cs4281 *chip = substream->rmidi->private_data; 1706 unsigned char byte; 1707 1708 spin_lock_irqsave(&chip->reg_lock, flags); 1709 if (up) { 1710 if ((chip->midcr & BA0_MIDCR_TIE) == 0) { 1711 chip->midcr |= BA0_MIDCR_TIE; 1712 /* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */ 1713 while ((chip->midcr & BA0_MIDCR_TIE) && 1714 (snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_TBF) == 0) { 1715 if (snd_rawmidi_transmit(substream, &byte, 1) != 1) { 1716 chip->midcr &= ~BA0_MIDCR_TIE; 1717 } else { 1718 snd_cs4281_pokeBA0(chip, BA0_MIDWP, byte); 1719 } 1720 } 1721 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1722 } 1723 } else { 1724 if (chip->midcr & BA0_MIDCR_TIE) { 1725 chip->midcr &= ~BA0_MIDCR_TIE; 1726 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1727 } 1728 } 1729 spin_unlock_irqrestore(&chip->reg_lock, flags); 1730 } 1731 1732 static const struct snd_rawmidi_ops snd_cs4281_midi_output = 1733 { 1734 .open = snd_cs4281_midi_output_open, 1735 .close = snd_cs4281_midi_output_close, 1736 .trigger = snd_cs4281_midi_output_trigger, 1737 }; 1738 1739 static const struct snd_rawmidi_ops snd_cs4281_midi_input = 1740 { 1741 .open = snd_cs4281_midi_input_open, 1742 .close = snd_cs4281_midi_input_close, 1743 .trigger = snd_cs4281_midi_input_trigger, 1744 }; 1745 1746 static int snd_cs4281_midi(struct cs4281 *chip, int device) 1747 { 1748 struct snd_rawmidi *rmidi; 1749 int err; 1750 1751 if ((err = snd_rawmidi_new(chip->card, "CS4281", device, 1, 1, &rmidi)) < 0) 1752 return err; 1753 strcpy(rmidi->name, "CS4281"); 1754 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs4281_midi_output); 1755 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs4281_midi_input); 1756 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX; 1757 rmidi->private_data = chip; 1758 chip->rmidi = rmidi; 1759 return 0; 1760 } 1761 1762 /* 1763 * Interrupt handler 1764 */ 1765 1766 static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id) 1767 { 1768 struct cs4281 *chip = dev_id; 1769 unsigned int status, dma, val; 1770 struct cs4281_dma *cdma; 1771 1772 if (chip == NULL) 1773 return IRQ_NONE; 1774 status = snd_cs4281_peekBA0(chip, BA0_HISR); 1775 if ((status & 0x7fffffff) == 0) { 1776 snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI); 1777 return IRQ_NONE; 1778 } 1779 1780 if (status & (BA0_HISR_DMA(0)|BA0_HISR_DMA(1)|BA0_HISR_DMA(2)|BA0_HISR_DMA(3))) { 1781 for (dma = 0; dma < 4; dma++) 1782 if (status & BA0_HISR_DMA(dma)) { 1783 cdma = &chip->dma[dma]; 1784 spin_lock(&chip->reg_lock); 1785 /* ack DMA IRQ */ 1786 val = snd_cs4281_peekBA0(chip, cdma->regHDSR); 1787 /* workaround, sometimes CS4281 acknowledges */ 1788 /* end or middle transfer position twice */ 1789 cdma->frag++; 1790 if ((val & BA0_HDSR_DHTC) && !(cdma->frag & 1)) { 1791 cdma->frag--; 1792 chip->spurious_dhtc_irq++; 1793 spin_unlock(&chip->reg_lock); 1794 continue; 1795 } 1796 if ((val & BA0_HDSR_DTC) && (cdma->frag & 1)) { 1797 cdma->frag--; 1798 chip->spurious_dtc_irq++; 1799 spin_unlock(&chip->reg_lock); 1800 continue; 1801 } 1802 spin_unlock(&chip->reg_lock); 1803 snd_pcm_period_elapsed(cdma->substream); 1804 } 1805 } 1806 1807 if ((status & BA0_HISR_MIDI) && chip->rmidi) { 1808 unsigned char c; 1809 1810 spin_lock(&chip->reg_lock); 1811 while ((snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_RBE) == 0) { 1812 c = snd_cs4281_peekBA0(chip, BA0_MIDRP); 1813 if ((chip->midcr & BA0_MIDCR_RIE) == 0) 1814 continue; 1815 snd_rawmidi_receive(chip->midi_input, &c, 1); 1816 } 1817 while ((snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_TBF) == 0) { 1818 if ((chip->midcr & BA0_MIDCR_TIE) == 0) 1819 break; 1820 if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) { 1821 chip->midcr &= ~BA0_MIDCR_TIE; 1822 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1823 break; 1824 } 1825 snd_cs4281_pokeBA0(chip, BA0_MIDWP, c); 1826 } 1827 spin_unlock(&chip->reg_lock); 1828 } 1829 1830 /* EOI to the PCI part... reenables interrupts */ 1831 snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI); 1832 1833 return IRQ_HANDLED; 1834 } 1835 1836 1837 /* 1838 * OPL3 command 1839 */ 1840 static void snd_cs4281_opl3_command(struct snd_opl3 *opl3, unsigned short cmd, 1841 unsigned char val) 1842 { 1843 unsigned long flags; 1844 struct cs4281 *chip = opl3->private_data; 1845 void __iomem *port; 1846 1847 if (cmd & OPL3_RIGHT) 1848 port = chip->ba0 + BA0_B1AP; /* right port */ 1849 else 1850 port = chip->ba0 + BA0_B0AP; /* left port */ 1851 1852 spin_lock_irqsave(&opl3->reg_lock, flags); 1853 1854 writel((unsigned int)cmd, port); 1855 udelay(10); 1856 1857 writel((unsigned int)val, port + 4); 1858 udelay(30); 1859 1860 spin_unlock_irqrestore(&opl3->reg_lock, flags); 1861 } 1862 1863 static int snd_cs4281_probe(struct pci_dev *pci, 1864 const struct pci_device_id *pci_id) 1865 { 1866 static int dev; 1867 struct snd_card *card; 1868 struct cs4281 *chip; 1869 struct snd_opl3 *opl3; 1870 int err; 1871 1872 if (dev >= SNDRV_CARDS) 1873 return -ENODEV; 1874 if (!enable[dev]) { 1875 dev++; 1876 return -ENOENT; 1877 } 1878 1879 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 1880 0, &card); 1881 if (err < 0) 1882 return err; 1883 1884 if ((err = snd_cs4281_create(card, pci, &chip, dual_codec[dev])) < 0) { 1885 snd_card_free(card); 1886 return err; 1887 } 1888 card->private_data = chip; 1889 1890 if ((err = snd_cs4281_mixer(chip)) < 0) { 1891 snd_card_free(card); 1892 return err; 1893 } 1894 if ((err = snd_cs4281_pcm(chip, 0)) < 0) { 1895 snd_card_free(card); 1896 return err; 1897 } 1898 if ((err = snd_cs4281_midi(chip, 0)) < 0) { 1899 snd_card_free(card); 1900 return err; 1901 } 1902 if ((err = snd_opl3_new(card, OPL3_HW_OPL3_CS4281, &opl3)) < 0) { 1903 snd_card_free(card); 1904 return err; 1905 } 1906 opl3->private_data = chip; 1907 opl3->command = snd_cs4281_opl3_command; 1908 snd_opl3_init(opl3); 1909 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) { 1910 snd_card_free(card); 1911 return err; 1912 } 1913 snd_cs4281_create_gameport(chip); 1914 strcpy(card->driver, "CS4281"); 1915 strcpy(card->shortname, "Cirrus Logic CS4281"); 1916 sprintf(card->longname, "%s at 0x%lx, irq %d", 1917 card->shortname, 1918 chip->ba0_addr, 1919 chip->irq); 1920 1921 if ((err = snd_card_register(card)) < 0) { 1922 snd_card_free(card); 1923 return err; 1924 } 1925 1926 pci_set_drvdata(pci, card); 1927 dev++; 1928 return 0; 1929 } 1930 1931 static void snd_cs4281_remove(struct pci_dev *pci) 1932 { 1933 snd_card_free(pci_get_drvdata(pci)); 1934 } 1935 1936 /* 1937 * Power Management 1938 */ 1939 #ifdef CONFIG_PM_SLEEP 1940 1941 static const int saved_regs[SUSPEND_REGISTERS] = { 1942 BA0_JSCTL, 1943 BA0_GPIOR, 1944 BA0_SSCR, 1945 BA0_MIDCR, 1946 BA0_SRCSA, 1947 BA0_PASR, 1948 BA0_CASR, 1949 BA0_DACSR, 1950 BA0_ADCSR, 1951 BA0_FMLVC, 1952 BA0_FMRVC, 1953 BA0_PPLVC, 1954 BA0_PPRVC, 1955 }; 1956 1957 #define CLKCR1_CKRA 0x00010000L 1958 1959 static int cs4281_suspend(struct device *dev) 1960 { 1961 struct snd_card *card = dev_get_drvdata(dev); 1962 struct cs4281 *chip = card->private_data; 1963 u32 ulCLK; 1964 unsigned int i; 1965 1966 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 1967 snd_ac97_suspend(chip->ac97); 1968 snd_ac97_suspend(chip->ac97_secondary); 1969 1970 ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); 1971 ulCLK |= CLKCR1_CKRA; 1972 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK); 1973 1974 /* Disable interrupts. */ 1975 snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_CHGM); 1976 1977 /* remember the status registers */ 1978 for (i = 0; i < ARRAY_SIZE(saved_regs); i++) 1979 if (saved_regs[i]) 1980 chip->suspend_regs[i] = snd_cs4281_peekBA0(chip, saved_regs[i]); 1981 1982 /* Turn off the serial ports. */ 1983 snd_cs4281_pokeBA0(chip, BA0_SERMC, 0); 1984 1985 /* Power off FM, Joystick, AC link, */ 1986 snd_cs4281_pokeBA0(chip, BA0_SSPM, 0); 1987 1988 /* DLL off. */ 1989 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, 0); 1990 1991 /* AC link off. */ 1992 snd_cs4281_pokeBA0(chip, BA0_SPMC, 0); 1993 1994 ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); 1995 ulCLK &= ~CLKCR1_CKRA; 1996 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK); 1997 return 0; 1998 } 1999 2000 static int cs4281_resume(struct device *dev) 2001 { 2002 struct snd_card *card = dev_get_drvdata(dev); 2003 struct cs4281 *chip = card->private_data; 2004 unsigned int i; 2005 u32 ulCLK; 2006 2007 ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); 2008 ulCLK |= CLKCR1_CKRA; 2009 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK); 2010 2011 snd_cs4281_chip_init(chip); 2012 2013 /* restore the status registers */ 2014 for (i = 0; i < ARRAY_SIZE(saved_regs); i++) 2015 if (saved_regs[i]) 2016 snd_cs4281_pokeBA0(chip, saved_regs[i], chip->suspend_regs[i]); 2017 2018 snd_ac97_resume(chip->ac97); 2019 snd_ac97_resume(chip->ac97_secondary); 2020 2021 ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); 2022 ulCLK &= ~CLKCR1_CKRA; 2023 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK); 2024 2025 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 2026 return 0; 2027 } 2028 2029 static SIMPLE_DEV_PM_OPS(cs4281_pm, cs4281_suspend, cs4281_resume); 2030 #define CS4281_PM_OPS &cs4281_pm 2031 #else 2032 #define CS4281_PM_OPS NULL 2033 #endif /* CONFIG_PM_SLEEP */ 2034 2035 static struct pci_driver cs4281_driver = { 2036 .name = KBUILD_MODNAME, 2037 .id_table = snd_cs4281_ids, 2038 .probe = snd_cs4281_probe, 2039 .remove = snd_cs4281_remove, 2040 .driver = { 2041 .pm = CS4281_PM_OPS, 2042 }, 2043 }; 2044 2045 module_pci_driver(cs4281_driver); 2046