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 MODULE_SUPPORTED_DEVICE("{{Cirrus Logic,CS4281}}"); 29 30 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 31 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 32 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */ 33 static bool dual_codec[SNDRV_CARDS]; /* dual codec */ 34 35 module_param_array(index, int, NULL, 0444); 36 MODULE_PARM_DESC(index, "Index value for CS4281 soundcard."); 37 module_param_array(id, charp, NULL, 0444); 38 MODULE_PARM_DESC(id, "ID string for CS4281 soundcard."); 39 module_param_array(enable, bool, NULL, 0444); 40 MODULE_PARM_DESC(enable, "Enable CS4281 soundcard."); 41 module_param_array(dual_codec, bool, NULL, 0444); 42 MODULE_PARM_DESC(dual_codec, "Secondary Codec ID (0 = disabled)."); 43 44 /* 45 * Direct registers 46 */ 47 48 #define CS4281_BA0_SIZE 0x1000 49 #define CS4281_BA1_SIZE 0x10000 50 51 /* 52 * BA0 registers 53 */ 54 #define BA0_HISR 0x0000 /* Host Interrupt Status Register */ 55 #define BA0_HISR_INTENA (1<<31) /* Internal Interrupt Enable Bit */ 56 #define BA0_HISR_MIDI (1<<22) /* MIDI port interrupt */ 57 #define BA0_HISR_FIFOI (1<<20) /* FIFO polled interrupt */ 58 #define BA0_HISR_DMAI (1<<18) /* DMA interrupt (half or end) */ 59 #define BA0_HISR_FIFO(c) (1<<(12+(c))) /* FIFO channel interrupt */ 60 #define BA0_HISR_DMA(c) (1<<(8+(c))) /* DMA channel interrupt */ 61 #define BA0_HISR_GPPI (1<<5) /* General Purpose Input (Primary chip) */ 62 #define BA0_HISR_GPSI (1<<4) /* General Purpose Input (Secondary chip) */ 63 #define BA0_HISR_GP3I (1<<3) /* GPIO3 pin Interrupt */ 64 #define BA0_HISR_GP1I (1<<2) /* GPIO1 pin Interrupt */ 65 #define BA0_HISR_VUPI (1<<1) /* VOLUP pin Interrupt */ 66 #define BA0_HISR_VDNI (1<<0) /* VOLDN pin Interrupt */ 67 68 #define BA0_HICR 0x0008 /* Host Interrupt Control Register */ 69 #define BA0_HICR_CHGM (1<<1) /* INTENA Change Mask */ 70 #define BA0_HICR_IEV (1<<0) /* INTENA Value */ 71 #define BA0_HICR_EOI (3<<0) /* End of Interrupt command */ 72 73 #define BA0_HIMR 0x000c /* Host Interrupt Mask Register */ 74 /* Use same contants as for BA0_HISR */ 75 76 #define BA0_IIER 0x0010 /* ISA Interrupt Enable Register */ 77 78 #define BA0_HDSR0 0x00f0 /* Host DMA Engine 0 Status Register */ 79 #define BA0_HDSR1 0x00f4 /* Host DMA Engine 1 Status Register */ 80 #define BA0_HDSR2 0x00f8 /* Host DMA Engine 2 Status Register */ 81 #define BA0_HDSR3 0x00fc /* Host DMA Engine 3 Status Register */ 82 83 #define BA0_HDSR_CH1P (1<<25) /* Channel 1 Pending */ 84 #define BA0_HDSR_CH2P (1<<24) /* Channel 2 Pending */ 85 #define BA0_HDSR_DHTC (1<<17) /* DMA Half Terminal Count */ 86 #define BA0_HDSR_DTC (1<<16) /* DMA Terminal Count */ 87 #define BA0_HDSR_DRUN (1<<15) /* DMA Running */ 88 #define BA0_HDSR_RQ (1<<7) /* Pending Request */ 89 90 #define BA0_DCA0 0x0110 /* Host DMA Engine 0 Current Address */ 91 #define BA0_DCC0 0x0114 /* Host DMA Engine 0 Current Count */ 92 #define BA0_DBA0 0x0118 /* Host DMA Engine 0 Base Address */ 93 #define BA0_DBC0 0x011c /* Host DMA Engine 0 Base Count */ 94 #define BA0_DCA1 0x0120 /* Host DMA Engine 1 Current Address */ 95 #define BA0_DCC1 0x0124 /* Host DMA Engine 1 Current Count */ 96 #define BA0_DBA1 0x0128 /* Host DMA Engine 1 Base Address */ 97 #define BA0_DBC1 0x012c /* Host DMA Engine 1 Base Count */ 98 #define BA0_DCA2 0x0130 /* Host DMA Engine 2 Current Address */ 99 #define BA0_DCC2 0x0134 /* Host DMA Engine 2 Current Count */ 100 #define BA0_DBA2 0x0138 /* Host DMA Engine 2 Base Address */ 101 #define BA0_DBC2 0x013c /* Host DMA Engine 2 Base Count */ 102 #define BA0_DCA3 0x0140 /* Host DMA Engine 3 Current Address */ 103 #define BA0_DCC3 0x0144 /* Host DMA Engine 3 Current Count */ 104 #define BA0_DBA3 0x0148 /* Host DMA Engine 3 Base Address */ 105 #define BA0_DBC3 0x014c /* Host DMA Engine 3 Base Count */ 106 #define BA0_DMR0 0x0150 /* Host DMA Engine 0 Mode */ 107 #define BA0_DCR0 0x0154 /* Host DMA Engine 0 Command */ 108 #define BA0_DMR1 0x0158 /* Host DMA Engine 1 Mode */ 109 #define BA0_DCR1 0x015c /* Host DMA Engine 1 Command */ 110 #define BA0_DMR2 0x0160 /* Host DMA Engine 2 Mode */ 111 #define BA0_DCR2 0x0164 /* Host DMA Engine 2 Command */ 112 #define BA0_DMR3 0x0168 /* Host DMA Engine 3 Mode */ 113 #define BA0_DCR3 0x016c /* Host DMA Engine 3 Command */ 114 115 #define BA0_DMR_DMA (1<<29) /* Enable DMA mode */ 116 #define BA0_DMR_POLL (1<<28) /* Enable poll mode */ 117 #define BA0_DMR_TBC (1<<25) /* Transfer By Channel */ 118 #define BA0_DMR_CBC (1<<24) /* Count By Channel (0 = frame resolution) */ 119 #define BA0_DMR_SWAPC (1<<22) /* Swap Left/Right Channels */ 120 #define BA0_DMR_SIZE20 (1<<20) /* Sample is 20-bit */ 121 #define BA0_DMR_USIGN (1<<19) /* Unsigned */ 122 #define BA0_DMR_BEND (1<<18) /* Big Endian */ 123 #define BA0_DMR_MONO (1<<17) /* Mono */ 124 #define BA0_DMR_SIZE8 (1<<16) /* Sample is 8-bit */ 125 #define BA0_DMR_TYPE_DEMAND (0<<6) 126 #define BA0_DMR_TYPE_SINGLE (1<<6) 127 #define BA0_DMR_TYPE_BLOCK (2<<6) 128 #define BA0_DMR_TYPE_CASCADE (3<<6) /* Not supported */ 129 #define BA0_DMR_DEC (1<<5) /* Access Increment (0) or Decrement (1) */ 130 #define BA0_DMR_AUTO (1<<4) /* Auto-Initialize */ 131 #define BA0_DMR_TR_VERIFY (0<<2) /* Verify Transfer */ 132 #define BA0_DMR_TR_WRITE (1<<2) /* Write Transfer */ 133 #define BA0_DMR_TR_READ (2<<2) /* Read Transfer */ 134 135 #define BA0_DCR_HTCIE (1<<17) /* Half Terminal Count Interrupt */ 136 #define BA0_DCR_TCIE (1<<16) /* Terminal Count Interrupt */ 137 #define BA0_DCR_MSK (1<<0) /* DMA Mask bit */ 138 139 #define BA0_FCR0 0x0180 /* FIFO Control 0 */ 140 #define BA0_FCR1 0x0184 /* FIFO Control 1 */ 141 #define BA0_FCR2 0x0188 /* FIFO Control 2 */ 142 #define BA0_FCR3 0x018c /* FIFO Control 3 */ 143 144 #define BA0_FCR_FEN (1<<31) /* FIFO Enable bit */ 145 #define BA0_FCR_DACZ (1<<30) /* DAC Zero */ 146 #define BA0_FCR_PSH (1<<29) /* Previous Sample Hold */ 147 #define BA0_FCR_RS(x) (((x)&0x1f)<<24) /* Right Slot Mapping */ 148 #define BA0_FCR_LS(x) (((x)&0x1f)<<16) /* Left Slot Mapping */ 149 #define BA0_FCR_SZ(x) (((x)&0x7f)<<8) /* FIFO buffer size (in samples) */ 150 #define BA0_FCR_OF(x) (((x)&0x7f)<<0) /* FIFO starting offset (in samples) */ 151 152 #define BA0_FPDR0 0x0190 /* FIFO Polled Data 0 */ 153 #define BA0_FPDR1 0x0194 /* FIFO Polled Data 1 */ 154 #define BA0_FPDR2 0x0198 /* FIFO Polled Data 2 */ 155 #define BA0_FPDR3 0x019c /* FIFO Polled Data 3 */ 156 157 #define BA0_FCHS 0x020c /* FIFO Channel Status */ 158 #define BA0_FCHS_RCO(x) (1<<(7+(((x)&3)<<3))) /* Right Channel Out */ 159 #define BA0_FCHS_LCO(x) (1<<(6+(((x)&3)<<3))) /* Left Channel Out */ 160 #define BA0_FCHS_MRP(x) (1<<(5+(((x)&3)<<3))) /* Move Read Pointer */ 161 #define BA0_FCHS_FE(x) (1<<(4+(((x)&3)<<3))) /* FIFO Empty */ 162 #define BA0_FCHS_FF(x) (1<<(3+(((x)&3)<<3))) /* FIFO Full */ 163 #define BA0_FCHS_IOR(x) (1<<(2+(((x)&3)<<3))) /* Internal Overrun Flag */ 164 #define BA0_FCHS_RCI(x) (1<<(1+(((x)&3)<<3))) /* Right Channel In */ 165 #define BA0_FCHS_LCI(x) (1<<(0+(((x)&3)<<3))) /* Left Channel In */ 166 167 #define BA0_FSIC0 0x0210 /* FIFO Status and Interrupt Control 0 */ 168 #define BA0_FSIC1 0x0214 /* FIFO Status and Interrupt Control 1 */ 169 #define BA0_FSIC2 0x0218 /* FIFO Status and Interrupt Control 2 */ 170 #define BA0_FSIC3 0x021c /* FIFO Status and Interrupt Control 3 */ 171 172 #define BA0_FSIC_FIC(x) (((x)&0x7f)<<24) /* FIFO Interrupt Count */ 173 #define BA0_FSIC_FORIE (1<<23) /* FIFO OverRun Interrupt Enable */ 174 #define BA0_FSIC_FURIE (1<<22) /* FIFO UnderRun Interrupt Enable */ 175 #define BA0_FSIC_FSCIE (1<<16) /* FIFO Sample Count Interrupt Enable */ 176 #define BA0_FSIC_FSC(x) (((x)&0x7f)<<8) /* FIFO Sample Count */ 177 #define BA0_FSIC_FOR (1<<7) /* FIFO OverRun */ 178 #define BA0_FSIC_FUR (1<<6) /* FIFO UnderRun */ 179 #define BA0_FSIC_FSCR (1<<0) /* FIFO Sample Count Reached */ 180 181 #define BA0_PMCS 0x0344 /* Power Management Control/Status */ 182 #define BA0_CWPR 0x03e0 /* Configuration Write Protect */ 183 184 #define BA0_EPPMC 0x03e4 /* Extended PCI Power Management Control */ 185 #define BA0_EPPMC_FPDN (1<<14) /* Full Power DowN */ 186 187 #define BA0_GPIOR 0x03e8 /* GPIO Pin Interface Register */ 188 189 #define BA0_SPMC 0x03ec /* Serial Port Power Management Control (& ASDIN2 enable) */ 190 #define BA0_SPMC_GIPPEN (1<<15) /* GP INT Primary PME# Enable */ 191 #define BA0_SPMC_GISPEN (1<<14) /* GP INT Secondary PME# Enable */ 192 #define BA0_SPMC_EESPD (1<<9) /* EEPROM Serial Port Disable */ 193 #define BA0_SPMC_ASDI2E (1<<8) /* ASDIN2 Enable */ 194 #define BA0_SPMC_ASDO (1<<7) /* Asynchronous ASDOUT Assertion */ 195 #define BA0_SPMC_WUP2 (1<<3) /* Wakeup for Secondary Input */ 196 #define BA0_SPMC_WUP1 (1<<2) /* Wakeup for Primary Input */ 197 #define BA0_SPMC_ASYNC (1<<1) /* Asynchronous ASYNC Assertion */ 198 #define BA0_SPMC_RSTN (1<<0) /* Reset Not! */ 199 200 #define BA0_CFLR 0x03f0 /* Configuration Load Register (EEPROM or BIOS) */ 201 #define BA0_CFLR_DEFAULT 0x00000001 /* CFLR must be in AC97 link mode */ 202 #define BA0_IISR 0x03f4 /* ISA Interrupt Select */ 203 #define BA0_TMS 0x03f8 /* Test Register */ 204 #define BA0_SSVID 0x03fc /* Subsystem ID register */ 205 206 #define BA0_CLKCR1 0x0400 /* Clock Control Register 1 */ 207 #define BA0_CLKCR1_CLKON (1<<25) /* Read Only */ 208 #define BA0_CLKCR1_DLLRDY (1<<24) /* DLL Ready */ 209 #define BA0_CLKCR1_DLLOS (1<<6) /* DLL Output Select */ 210 #define BA0_CLKCR1_SWCE (1<<5) /* Clock Enable */ 211 #define BA0_CLKCR1_DLLP (1<<4) /* DLL PowerUp */ 212 #define BA0_CLKCR1_DLLSS (((x)&3)<<3) /* DLL Source Select */ 213 214 #define BA0_FRR 0x0410 /* Feature Reporting Register */ 215 #define BA0_SLT12O 0x041c /* Slot 12 GPIO Output Register for AC-Link */ 216 217 #define BA0_SERMC 0x0420 /* Serial Port Master Control */ 218 #define BA0_SERMC_FCRN (1<<27) /* Force Codec Ready Not */ 219 #define BA0_SERMC_ODSEN2 (1<<25) /* On-Demand Support Enable ASDIN2 */ 220 #define BA0_SERMC_ODSEN1 (1<<24) /* On-Demand Support Enable ASDIN1 */ 221 #define BA0_SERMC_SXLB (1<<21) /* ASDIN2 to ASDOUT Loopback */ 222 #define BA0_SERMC_SLB (1<<20) /* ASDOUT to ASDIN2 Loopback */ 223 #define BA0_SERMC_LOVF (1<<19) /* Loopback Output Valid Frame bit */ 224 #define BA0_SERMC_TCID(x) (((x)&3)<<16) /* Target Secondary Codec ID */ 225 #define BA0_SERMC_PXLB (5<<1) /* Primary Port External Loopback */ 226 #define BA0_SERMC_PLB (4<<1) /* Primary Port Internal Loopback */ 227 #define BA0_SERMC_PTC (7<<1) /* Port Timing Configuration */ 228 #define BA0_SERMC_PTC_AC97 (1<<1) /* AC97 mode */ 229 #define BA0_SERMC_MSPE (1<<0) /* Master Serial Port Enable */ 230 231 #define BA0_SERC1 0x0428 /* Serial Port Configuration 1 */ 232 #define BA0_SERC1_SO1F(x) (((x)&7)>>1) /* Primary Output Port Format */ 233 #define BA0_SERC1_AC97 (1<<1) 234 #define BA0_SERC1_SO1EN (1<<0) /* Primary Output Port Enable */ 235 236 #define BA0_SERC2 0x042c /* Serial Port Configuration 2 */ 237 #define BA0_SERC2_SI1F(x) (((x)&7)>>1) /* Primary Input Port Format */ 238 #define BA0_SERC2_AC97 (1<<1) 239 #define BA0_SERC2_SI1EN (1<<0) /* Primary Input Port Enable */ 240 241 #define BA0_SLT12M 0x045c /* Slot 12 Monitor Register for Primary AC-Link */ 242 243 #define BA0_ACCTL 0x0460 /* AC'97 Control */ 244 #define BA0_ACCTL_TC (1<<6) /* Target Codec */ 245 #define BA0_ACCTL_CRW (1<<4) /* 0=Write, 1=Read Command */ 246 #define BA0_ACCTL_DCV (1<<3) /* Dynamic Command Valid */ 247 #define BA0_ACCTL_VFRM (1<<2) /* Valid Frame */ 248 #define BA0_ACCTL_ESYN (1<<1) /* Enable Sync */ 249 250 #define BA0_ACSTS 0x0464 /* AC'97 Status */ 251 #define BA0_ACSTS_VSTS (1<<1) /* Valid Status */ 252 #define BA0_ACSTS_CRDY (1<<0) /* Codec Ready */ 253 254 #define BA0_ACOSV 0x0468 /* AC'97 Output Slot Valid */ 255 #define BA0_ACOSV_SLV(x) (1<<((x)-3)) 256 257 #define BA0_ACCAD 0x046c /* AC'97 Command Address */ 258 #define BA0_ACCDA 0x0470 /* AC'97 Command Data */ 259 260 #define BA0_ACISV 0x0474 /* AC'97 Input Slot Valid */ 261 #define BA0_ACISV_SLV(x) (1<<((x)-3)) 262 263 #define BA0_ACSAD 0x0478 /* AC'97 Status Address */ 264 #define BA0_ACSDA 0x047c /* AC'97 Status Data */ 265 #define BA0_JSPT 0x0480 /* Joystick poll/trigger */ 266 #define BA0_JSCTL 0x0484 /* Joystick control */ 267 #define BA0_JSC1 0x0488 /* Joystick control */ 268 #define BA0_JSC2 0x048c /* Joystick control */ 269 #define BA0_JSIO 0x04a0 270 271 #define BA0_MIDCR 0x0490 /* MIDI Control */ 272 #define BA0_MIDCR_MRST (1<<5) /* Reset MIDI Interface */ 273 #define BA0_MIDCR_MLB (1<<4) /* MIDI Loop Back Enable */ 274 #define BA0_MIDCR_TIE (1<<3) /* MIDI Transmuit Interrupt Enable */ 275 #define BA0_MIDCR_RIE (1<<2) /* MIDI Receive Interrupt Enable */ 276 #define BA0_MIDCR_RXE (1<<1) /* MIDI Receive Enable */ 277 #define BA0_MIDCR_TXE (1<<0) /* MIDI Transmit Enable */ 278 279 #define BA0_MIDCMD 0x0494 /* MIDI Command (wo) */ 280 281 #define BA0_MIDSR 0x0494 /* MIDI Status (ro) */ 282 #define BA0_MIDSR_RDA (1<<15) /* Sticky bit (RBE 1->0) */ 283 #define BA0_MIDSR_TBE (1<<14) /* Sticky bit (TBF 0->1) */ 284 #define BA0_MIDSR_RBE (1<<7) /* Receive Buffer Empty */ 285 #define BA0_MIDSR_TBF (1<<6) /* Transmit Buffer Full */ 286 287 #define BA0_MIDWP 0x0498 /* MIDI Write */ 288 #define BA0_MIDRP 0x049c /* MIDI Read (ro) */ 289 290 #define BA0_AODSD1 0x04a8 /* AC'97 On-Demand Slot Disable for primary link (ro) */ 291 #define BA0_AODSD1_NDS(x) (1<<((x)-3)) 292 293 #define BA0_AODSD2 0x04ac /* AC'97 On-Demand Slot Disable for secondary link (ro) */ 294 #define BA0_AODSD2_NDS(x) (1<<((x)-3)) 295 296 #define BA0_CFGI 0x04b0 /* Configure Interface (EEPROM interface) */ 297 #define BA0_SLT12M2 0x04dc /* Slot 12 Monitor Register 2 for secondary AC-link */ 298 #define BA0_ACSTS2 0x04e4 /* AC'97 Status Register 2 */ 299 #define BA0_ACISV2 0x04f4 /* AC'97 Input Slot Valid Register 2 */ 300 #define BA0_ACSAD2 0x04f8 /* AC'97 Status Address Register 2 */ 301 #define BA0_ACSDA2 0x04fc /* AC'97 Status Data Register 2 */ 302 #define BA0_FMSR 0x0730 /* FM Synthesis Status (ro) */ 303 #define BA0_B0AP 0x0730 /* FM Bank 0 Address Port (wo) */ 304 #define BA0_FMDP 0x0734 /* FM Data Port */ 305 #define BA0_B1AP 0x0738 /* FM Bank 1 Address Port */ 306 #define BA0_B1DP 0x073c /* FM Bank 1 Data Port */ 307 308 #define BA0_SSPM 0x0740 /* Sound System Power Management */ 309 #define BA0_SSPM_MIXEN (1<<6) /* Playback SRC + FM/Wavetable MIX */ 310 #define BA0_SSPM_CSRCEN (1<<5) /* Capture Sample Rate Converter Enable */ 311 #define BA0_SSPM_PSRCEN (1<<4) /* Playback Sample Rate Converter Enable */ 312 #define BA0_SSPM_JSEN (1<<3) /* Joystick Enable */ 313 #define BA0_SSPM_ACLEN (1<<2) /* Serial Port Engine and AC-Link Enable */ 314 #define BA0_SSPM_FMEN (1<<1) /* FM Synthesis Block Enable */ 315 316 #define BA0_DACSR 0x0744 /* DAC Sample Rate - Playback SRC */ 317 #define BA0_ADCSR 0x0748 /* ADC Sample Rate - Capture SRC */ 318 319 #define BA0_SSCR 0x074c /* Sound System Control Register */ 320 #define BA0_SSCR_HVS1 (1<<23) /* Hardwave Volume Step (0=1,1=2) */ 321 #define BA0_SSCR_MVCS (1<<19) /* Master Volume Codec Select */ 322 #define BA0_SSCR_MVLD (1<<18) /* Master Volume Line Out Disable */ 323 #define BA0_SSCR_MVAD (1<<17) /* Master Volume Alternate Out Disable */ 324 #define BA0_SSCR_MVMD (1<<16) /* Master Volume Mono Out Disable */ 325 #define BA0_SSCR_XLPSRC (1<<8) /* External SRC Loopback Mode */ 326 #define BA0_SSCR_LPSRC (1<<7) /* SRC Loopback Mode */ 327 #define BA0_SSCR_CDTX (1<<5) /* CD Transfer Data */ 328 #define BA0_SSCR_HVC (1<<3) /* Harware Volume Control Enable */ 329 330 #define BA0_FMLVC 0x0754 /* FM Synthesis Left Volume Control */ 331 #define BA0_FMRVC 0x0758 /* FM Synthesis Right Volume Control */ 332 #define BA0_SRCSA 0x075c /* SRC Slot Assignments */ 333 #define BA0_PPLVC 0x0760 /* PCM Playback Left Volume Control */ 334 #define BA0_PPRVC 0x0764 /* PCM Playback Right Volume Control */ 335 #define BA0_PASR 0x0768 /* playback sample rate */ 336 #define BA0_CASR 0x076C /* capture sample rate */ 337 338 /* Source Slot Numbers - Playback */ 339 #define SRCSLOT_LEFT_PCM_PLAYBACK 0 340 #define SRCSLOT_RIGHT_PCM_PLAYBACK 1 341 #define SRCSLOT_PHONE_LINE_1_DAC 2 342 #define SRCSLOT_CENTER_PCM_PLAYBACK 3 343 #define SRCSLOT_LEFT_SURROUND_PCM_PLAYBACK 4 344 #define SRCSLOT_RIGHT_SURROUND_PCM_PLAYBACK 5 345 #define SRCSLOT_LFE_PCM_PLAYBACK 6 346 #define SRCSLOT_PHONE_LINE_2_DAC 7 347 #define SRCSLOT_HEADSET_DAC 8 348 #define SRCSLOT_LEFT_WT 29 /* invalid for BA0_SRCSA */ 349 #define SRCSLOT_RIGHT_WT 30 /* invalid for BA0_SRCSA */ 350 351 /* Source Slot Numbers - Capture */ 352 #define SRCSLOT_LEFT_PCM_RECORD 10 353 #define SRCSLOT_RIGHT_PCM_RECORD 11 354 #define SRCSLOT_PHONE_LINE_1_ADC 12 355 #define SRCSLOT_MIC_ADC 13 356 #define SRCSLOT_PHONE_LINE_2_ADC 17 357 #define SRCSLOT_HEADSET_ADC 18 358 #define SRCSLOT_SECONDARY_LEFT_PCM_RECORD 20 359 #define SRCSLOT_SECONDARY_RIGHT_PCM_RECORD 21 360 #define SRCSLOT_SECONDARY_PHONE_LINE_1_ADC 22 361 #define SRCSLOT_SECONDARY_MIC_ADC 23 362 #define SRCSLOT_SECONDARY_PHONE_LINE_2_ADC 27 363 #define SRCSLOT_SECONDARY_HEADSET_ADC 28 364 365 /* Source Slot Numbers - Others */ 366 #define SRCSLOT_POWER_DOWN 31 367 368 /* MIDI modes */ 369 #define CS4281_MODE_OUTPUT (1<<0) 370 #define CS4281_MODE_INPUT (1<<1) 371 372 /* joystick bits */ 373 /* Bits for JSPT */ 374 #define JSPT_CAX 0x00000001 375 #define JSPT_CAY 0x00000002 376 #define JSPT_CBX 0x00000004 377 #define JSPT_CBY 0x00000008 378 #define JSPT_BA1 0x00000010 379 #define JSPT_BA2 0x00000020 380 #define JSPT_BB1 0x00000040 381 #define JSPT_BB2 0x00000080 382 383 /* Bits for JSCTL */ 384 #define JSCTL_SP_MASK 0x00000003 385 #define JSCTL_SP_SLOW 0x00000000 386 #define JSCTL_SP_MEDIUM_SLOW 0x00000001 387 #define JSCTL_SP_MEDIUM_FAST 0x00000002 388 #define JSCTL_SP_FAST 0x00000003 389 #define JSCTL_ARE 0x00000004 390 391 /* Data register pairs masks */ 392 #define JSC1_Y1V_MASK 0x0000FFFF 393 #define JSC1_X1V_MASK 0xFFFF0000 394 #define JSC1_Y1V_SHIFT 0 395 #define JSC1_X1V_SHIFT 16 396 #define JSC2_Y2V_MASK 0x0000FFFF 397 #define JSC2_X2V_MASK 0xFFFF0000 398 #define JSC2_Y2V_SHIFT 0 399 #define JSC2_X2V_SHIFT 16 400 401 /* JS GPIO */ 402 #define JSIO_DAX 0x00000001 403 #define JSIO_DAY 0x00000002 404 #define JSIO_DBX 0x00000004 405 #define JSIO_DBY 0x00000008 406 #define JSIO_AXOE 0x00000010 407 #define JSIO_AYOE 0x00000020 408 #define JSIO_BXOE 0x00000040 409 #define JSIO_BYOE 0x00000080 410 411 /* 412 * 413 */ 414 415 struct cs4281_dma { 416 struct snd_pcm_substream *substream; 417 unsigned int regDBA; /* offset to DBA register */ 418 unsigned int regDCA; /* offset to DCA register */ 419 unsigned int regDBC; /* offset to DBC register */ 420 unsigned int regDCC; /* offset to DCC register */ 421 unsigned int regDMR; /* offset to DMR register */ 422 unsigned int regDCR; /* offset to DCR register */ 423 unsigned int regHDSR; /* offset to HDSR register */ 424 unsigned int regFCR; /* offset to FCR register */ 425 unsigned int regFSIC; /* offset to FSIC register */ 426 unsigned int valDMR; /* DMA mode */ 427 unsigned int valDCR; /* DMA command */ 428 unsigned int valFCR; /* FIFO control */ 429 unsigned int fifo_offset; /* FIFO offset within BA1 */ 430 unsigned char left_slot; /* FIFO left slot */ 431 unsigned char right_slot; /* FIFO right slot */ 432 int frag; /* period number */ 433 }; 434 435 #define SUSPEND_REGISTERS 20 436 437 struct cs4281 { 438 int irq; 439 440 void __iomem *ba0; /* virtual (accessible) address */ 441 void __iomem *ba1; /* virtual (accessible) address */ 442 unsigned long ba0_addr; 443 unsigned long ba1_addr; 444 445 int dual_codec; 446 447 struct snd_ac97_bus *ac97_bus; 448 struct snd_ac97 *ac97; 449 struct snd_ac97 *ac97_secondary; 450 451 struct pci_dev *pci; 452 struct snd_card *card; 453 struct snd_pcm *pcm; 454 struct snd_rawmidi *rmidi; 455 struct snd_rawmidi_substream *midi_input; 456 struct snd_rawmidi_substream *midi_output; 457 458 struct cs4281_dma dma[4]; 459 460 unsigned char src_left_play_slot; 461 unsigned char src_right_play_slot; 462 unsigned char src_left_rec_slot; 463 unsigned char src_right_rec_slot; 464 465 unsigned int spurious_dhtc_irq; 466 unsigned int spurious_dtc_irq; 467 468 spinlock_t reg_lock; 469 unsigned int midcr; 470 unsigned int uartm; 471 472 struct gameport *gameport; 473 474 #ifdef CONFIG_PM_SLEEP 475 u32 suspend_regs[SUSPEND_REGISTERS]; 476 #endif 477 478 }; 479 480 static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id); 481 482 static const struct pci_device_id snd_cs4281_ids[] = { 483 { PCI_VDEVICE(CIRRUS, 0x6005), 0, }, /* CS4281 */ 484 { 0, } 485 }; 486 487 MODULE_DEVICE_TABLE(pci, snd_cs4281_ids); 488 489 /* 490 * constants 491 */ 492 493 #define CS4281_FIFO_SIZE 32 494 495 /* 496 * common I/O routines 497 */ 498 499 static inline void snd_cs4281_pokeBA0(struct cs4281 *chip, unsigned long offset, 500 unsigned int val) 501 { 502 writel(val, chip->ba0 + offset); 503 } 504 505 static inline unsigned int snd_cs4281_peekBA0(struct cs4281 *chip, unsigned long offset) 506 { 507 return readl(chip->ba0 + offset); 508 } 509 510 static void snd_cs4281_ac97_write(struct snd_ac97 *ac97, 511 unsigned short reg, unsigned short val) 512 { 513 /* 514 * 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address 515 * 2. Write ACCDA = Command Data Register = 470h for data to write to AC97 516 * 3. Write ACCTL = Control Register = 460h for initiating the write 517 * 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h 518 * 5. if DCV not cleared, break and return error 519 */ 520 struct cs4281 *chip = ac97->private_data; 521 int count; 522 523 /* 524 * Setup the AC97 control registers on the CS461x to send the 525 * appropriate command to the AC97 to perform the read. 526 * ACCAD = Command Address Register = 46Ch 527 * ACCDA = Command Data Register = 470h 528 * ACCTL = Control Register = 460h 529 * set DCV - will clear when process completed 530 * reset CRW - Write command 531 * set VFRM - valid frame enabled 532 * set ESYN - ASYNC generation enabled 533 * set RSTN - ARST# inactive, AC97 codec not reset 534 */ 535 snd_cs4281_pokeBA0(chip, BA0_ACCAD, reg); 536 snd_cs4281_pokeBA0(chip, BA0_ACCDA, val); 537 snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_DCV | BA0_ACCTL_VFRM | 538 BA0_ACCTL_ESYN | (ac97->num ? BA0_ACCTL_TC : 0)); 539 for (count = 0; count < 2000; count++) { 540 /* 541 * First, we want to wait for a short time. 542 */ 543 udelay(10); 544 /* 545 * Now, check to see if the write has completed. 546 * ACCTL = 460h, DCV should be reset by now and 460h = 07h 547 */ 548 if (!(snd_cs4281_peekBA0(chip, BA0_ACCTL) & BA0_ACCTL_DCV)) { 549 return; 550 } 551 } 552 dev_err(chip->card->dev, 553 "AC'97 write problem, reg = 0x%x, val = 0x%x\n", reg, val); 554 } 555 556 static unsigned short snd_cs4281_ac97_read(struct snd_ac97 *ac97, 557 unsigned short reg) 558 { 559 struct cs4281 *chip = ac97->private_data; 560 int count; 561 unsigned short result; 562 // FIXME: volatile is necessary in the following due to a bug of 563 // some gcc versions 564 volatile int ac97_num = ((volatile struct snd_ac97 *)ac97)->num; 565 566 /* 567 * 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address 568 * 2. Write ACCDA = Command Data Register = 470h for data to write to AC97 569 * 3. Write ACCTL = Control Register = 460h for initiating the write 570 * 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h 571 * 5. if DCV not cleared, break and return error 572 * 6. Read ACSTS = Status Register = 464h, check VSTS bit 573 */ 574 575 snd_cs4281_peekBA0(chip, ac97_num ? BA0_ACSDA2 : BA0_ACSDA); 576 577 /* 578 * Setup the AC97 control registers on the CS461x to send the 579 * appropriate command to the AC97 to perform the read. 580 * ACCAD = Command Address Register = 46Ch 581 * ACCDA = Command Data Register = 470h 582 * ACCTL = Control Register = 460h 583 * set DCV - will clear when process completed 584 * set CRW - Read command 585 * set VFRM - valid frame enabled 586 * set ESYN - ASYNC generation enabled 587 * set RSTN - ARST# inactive, AC97 codec not reset 588 */ 589 590 snd_cs4281_pokeBA0(chip, BA0_ACCAD, reg); 591 snd_cs4281_pokeBA0(chip, BA0_ACCDA, 0); 592 snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_DCV | BA0_ACCTL_CRW | 593 BA0_ACCTL_VFRM | BA0_ACCTL_ESYN | 594 (ac97_num ? BA0_ACCTL_TC : 0)); 595 596 597 /* 598 * Wait for the read to occur. 599 */ 600 for (count = 0; count < 500; count++) { 601 /* 602 * First, we want to wait for a short time. 603 */ 604 udelay(10); 605 /* 606 * Now, check to see if the read has completed. 607 * ACCTL = 460h, DCV should be reset by now and 460h = 17h 608 */ 609 if (!(snd_cs4281_peekBA0(chip, BA0_ACCTL) & BA0_ACCTL_DCV)) 610 goto __ok1; 611 } 612 613 dev_err(chip->card->dev, 614 "AC'97 read problem (ACCTL_DCV), reg = 0x%x\n", reg); 615 result = 0xffff; 616 goto __end; 617 618 __ok1: 619 /* 620 * Wait for the valid status bit to go active. 621 */ 622 for (count = 0; count < 100; count++) { 623 /* 624 * Read the AC97 status register. 625 * ACSTS = Status Register = 464h 626 * VSTS - Valid Status 627 */ 628 if (snd_cs4281_peekBA0(chip, ac97_num ? BA0_ACSTS2 : BA0_ACSTS) & BA0_ACSTS_VSTS) 629 goto __ok2; 630 udelay(10); 631 } 632 633 dev_err(chip->card->dev, 634 "AC'97 read problem (ACSTS_VSTS), reg = 0x%x\n", reg); 635 result = 0xffff; 636 goto __end; 637 638 __ok2: 639 /* 640 * Read the data returned from the AC97 register. 641 * ACSDA = Status Data Register = 474h 642 */ 643 result = snd_cs4281_peekBA0(chip, ac97_num ? BA0_ACSDA2 : BA0_ACSDA); 644 645 __end: 646 return result; 647 } 648 649 /* 650 * PCM part 651 */ 652 653 static int snd_cs4281_trigger(struct snd_pcm_substream *substream, int cmd) 654 { 655 struct cs4281_dma *dma = substream->runtime->private_data; 656 struct cs4281 *chip = snd_pcm_substream_chip(substream); 657 658 spin_lock(&chip->reg_lock); 659 switch (cmd) { 660 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 661 dma->valDCR |= BA0_DCR_MSK; 662 dma->valFCR |= BA0_FCR_FEN; 663 break; 664 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 665 dma->valDCR &= ~BA0_DCR_MSK; 666 dma->valFCR &= ~BA0_FCR_FEN; 667 break; 668 case SNDRV_PCM_TRIGGER_START: 669 case SNDRV_PCM_TRIGGER_RESUME: 670 snd_cs4281_pokeBA0(chip, dma->regDMR, dma->valDMR & ~BA0_DMR_DMA); 671 dma->valDMR |= BA0_DMR_DMA; 672 dma->valDCR &= ~BA0_DCR_MSK; 673 dma->valFCR |= BA0_FCR_FEN; 674 break; 675 case SNDRV_PCM_TRIGGER_STOP: 676 case SNDRV_PCM_TRIGGER_SUSPEND: 677 dma->valDMR &= ~(BA0_DMR_DMA|BA0_DMR_POLL); 678 dma->valDCR |= BA0_DCR_MSK; 679 dma->valFCR &= ~BA0_FCR_FEN; 680 /* Leave wave playback FIFO enabled for FM */ 681 if (dma->regFCR != BA0_FCR0) 682 dma->valFCR &= ~BA0_FCR_FEN; 683 break; 684 default: 685 spin_unlock(&chip->reg_lock); 686 return -EINVAL; 687 } 688 snd_cs4281_pokeBA0(chip, dma->regDMR, dma->valDMR); 689 snd_cs4281_pokeBA0(chip, dma->regFCR, dma->valFCR); 690 snd_cs4281_pokeBA0(chip, dma->regDCR, dma->valDCR); 691 spin_unlock(&chip->reg_lock); 692 return 0; 693 } 694 695 static unsigned int snd_cs4281_rate(unsigned int rate, unsigned int *real_rate) 696 { 697 unsigned int val = ~0; 698 699 if (real_rate) 700 *real_rate = rate; 701 /* special "hardcoded" rates */ 702 switch (rate) { 703 case 8000: return 5; 704 case 11025: return 4; 705 case 16000: return 3; 706 case 22050: return 2; 707 case 44100: return 1; 708 case 48000: return 0; 709 default: 710 goto __variable; 711 } 712 __variable: 713 val = 1536000 / rate; 714 if (real_rate) 715 *real_rate = 1536000 / val; 716 return val; 717 } 718 719 static void snd_cs4281_mode(struct cs4281 *chip, struct cs4281_dma *dma, 720 struct snd_pcm_runtime *runtime, 721 int capture, int src) 722 { 723 int rec_mono; 724 725 dma->valDMR = BA0_DMR_TYPE_SINGLE | BA0_DMR_AUTO | 726 (capture ? BA0_DMR_TR_WRITE : BA0_DMR_TR_READ); 727 if (runtime->channels == 1) 728 dma->valDMR |= BA0_DMR_MONO; 729 if (snd_pcm_format_unsigned(runtime->format) > 0) 730 dma->valDMR |= BA0_DMR_USIGN; 731 if (snd_pcm_format_big_endian(runtime->format) > 0) 732 dma->valDMR |= BA0_DMR_BEND; 733 switch (snd_pcm_format_width(runtime->format)) { 734 case 8: dma->valDMR |= BA0_DMR_SIZE8; 735 if (runtime->channels == 1) 736 dma->valDMR |= BA0_DMR_SWAPC; 737 break; 738 case 32: dma->valDMR |= BA0_DMR_SIZE20; break; 739 } 740 dma->frag = 0; /* for workaround */ 741 dma->valDCR = BA0_DCR_TCIE | BA0_DCR_MSK; 742 if (runtime->buffer_size != runtime->period_size) 743 dma->valDCR |= BA0_DCR_HTCIE; 744 /* Initialize DMA */ 745 snd_cs4281_pokeBA0(chip, dma->regDBA, runtime->dma_addr); 746 snd_cs4281_pokeBA0(chip, dma->regDBC, runtime->buffer_size - 1); 747 rec_mono = (chip->dma[1].valDMR & BA0_DMR_MONO) == BA0_DMR_MONO; 748 snd_cs4281_pokeBA0(chip, BA0_SRCSA, (chip->src_left_play_slot << 0) | 749 (chip->src_right_play_slot << 8) | 750 (chip->src_left_rec_slot << 16) | 751 ((rec_mono ? 31 : chip->src_right_rec_slot) << 24)); 752 if (!src) 753 goto __skip_src; 754 if (!capture) { 755 if (dma->left_slot == chip->src_left_play_slot) { 756 unsigned int val = snd_cs4281_rate(runtime->rate, NULL); 757 snd_BUG_ON(dma->right_slot != chip->src_right_play_slot); 758 snd_cs4281_pokeBA0(chip, BA0_DACSR, val); 759 } 760 } else { 761 if (dma->left_slot == chip->src_left_rec_slot) { 762 unsigned int val = snd_cs4281_rate(runtime->rate, NULL); 763 snd_BUG_ON(dma->right_slot != chip->src_right_rec_slot); 764 snd_cs4281_pokeBA0(chip, BA0_ADCSR, val); 765 } 766 } 767 __skip_src: 768 /* Deactivate wave playback FIFO before changing slot assignments */ 769 if (dma->regFCR == BA0_FCR0) 770 snd_cs4281_pokeBA0(chip, dma->regFCR, snd_cs4281_peekBA0(chip, dma->regFCR) & ~BA0_FCR_FEN); 771 /* Initialize FIFO */ 772 dma->valFCR = BA0_FCR_LS(dma->left_slot) | 773 BA0_FCR_RS(capture && (dma->valDMR & BA0_DMR_MONO) ? 31 : dma->right_slot) | 774 BA0_FCR_SZ(CS4281_FIFO_SIZE) | 775 BA0_FCR_OF(dma->fifo_offset); 776 snd_cs4281_pokeBA0(chip, dma->regFCR, dma->valFCR | (capture ? BA0_FCR_PSH : 0)); 777 /* Activate FIFO again for FM playback */ 778 if (dma->regFCR == BA0_FCR0) 779 snd_cs4281_pokeBA0(chip, dma->regFCR, dma->valFCR | BA0_FCR_FEN); 780 /* Clear FIFO Status and Interrupt Control Register */ 781 snd_cs4281_pokeBA0(chip, dma->regFSIC, 0); 782 } 783 784 static int snd_cs4281_hw_params(struct snd_pcm_substream *substream, 785 struct snd_pcm_hw_params *hw_params) 786 { 787 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 788 } 789 790 static int snd_cs4281_hw_free(struct snd_pcm_substream *substream) 791 { 792 return snd_pcm_lib_free_pages(substream); 793 } 794 795 static int snd_cs4281_playback_prepare(struct snd_pcm_substream *substream) 796 { 797 struct snd_pcm_runtime *runtime = substream->runtime; 798 struct cs4281_dma *dma = runtime->private_data; 799 struct cs4281 *chip = snd_pcm_substream_chip(substream); 800 801 spin_lock_irq(&chip->reg_lock); 802 snd_cs4281_mode(chip, dma, runtime, 0, 1); 803 spin_unlock_irq(&chip->reg_lock); 804 return 0; 805 } 806 807 static int snd_cs4281_capture_prepare(struct snd_pcm_substream *substream) 808 { 809 struct snd_pcm_runtime *runtime = substream->runtime; 810 struct cs4281_dma *dma = runtime->private_data; 811 struct cs4281 *chip = snd_pcm_substream_chip(substream); 812 813 spin_lock_irq(&chip->reg_lock); 814 snd_cs4281_mode(chip, dma, runtime, 1, 1); 815 spin_unlock_irq(&chip->reg_lock); 816 return 0; 817 } 818 819 static snd_pcm_uframes_t snd_cs4281_pointer(struct snd_pcm_substream *substream) 820 { 821 struct snd_pcm_runtime *runtime = substream->runtime; 822 struct cs4281_dma *dma = runtime->private_data; 823 struct cs4281 *chip = snd_pcm_substream_chip(substream); 824 825 /* 826 dev_dbg(chip->card->dev, 827 "DCC = 0x%x, buffer_size = 0x%x, jiffies = %li\n", 828 snd_cs4281_peekBA0(chip, dma->regDCC), runtime->buffer_size, 829 jiffies); 830 */ 831 return runtime->buffer_size - 832 snd_cs4281_peekBA0(chip, dma->regDCC) - 1; 833 } 834 835 static const struct snd_pcm_hardware snd_cs4281_playback = 836 { 837 .info = SNDRV_PCM_INFO_MMAP | 838 SNDRV_PCM_INFO_INTERLEAVED | 839 SNDRV_PCM_INFO_MMAP_VALID | 840 SNDRV_PCM_INFO_PAUSE | 841 SNDRV_PCM_INFO_RESUME, 842 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 843 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_S16_LE | 844 SNDRV_PCM_FMTBIT_U16_BE | SNDRV_PCM_FMTBIT_S16_BE | 845 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_S32_LE | 846 SNDRV_PCM_FMTBIT_U32_BE | SNDRV_PCM_FMTBIT_S32_BE, 847 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 848 .rate_min = 4000, 849 .rate_max = 48000, 850 .channels_min = 1, 851 .channels_max = 2, 852 .buffer_bytes_max = (512*1024), 853 .period_bytes_min = 64, 854 .period_bytes_max = (512*1024), 855 .periods_min = 1, 856 .periods_max = 2, 857 .fifo_size = CS4281_FIFO_SIZE, 858 }; 859 860 static const struct snd_pcm_hardware snd_cs4281_capture = 861 { 862 .info = SNDRV_PCM_INFO_MMAP | 863 SNDRV_PCM_INFO_INTERLEAVED | 864 SNDRV_PCM_INFO_MMAP_VALID | 865 SNDRV_PCM_INFO_PAUSE | 866 SNDRV_PCM_INFO_RESUME, 867 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 868 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_S16_LE | 869 SNDRV_PCM_FMTBIT_U16_BE | SNDRV_PCM_FMTBIT_S16_BE | 870 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_S32_LE | 871 SNDRV_PCM_FMTBIT_U32_BE | SNDRV_PCM_FMTBIT_S32_BE, 872 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 873 .rate_min = 4000, 874 .rate_max = 48000, 875 .channels_min = 1, 876 .channels_max = 2, 877 .buffer_bytes_max = (512*1024), 878 .period_bytes_min = 64, 879 .period_bytes_max = (512*1024), 880 .periods_min = 1, 881 .periods_max = 2, 882 .fifo_size = CS4281_FIFO_SIZE, 883 }; 884 885 static int snd_cs4281_playback_open(struct snd_pcm_substream *substream) 886 { 887 struct cs4281 *chip = snd_pcm_substream_chip(substream); 888 struct snd_pcm_runtime *runtime = substream->runtime; 889 struct cs4281_dma *dma; 890 891 dma = &chip->dma[0]; 892 dma->substream = substream; 893 dma->left_slot = 0; 894 dma->right_slot = 1; 895 runtime->private_data = dma; 896 runtime->hw = snd_cs4281_playback; 897 /* should be detected from the AC'97 layer, but it seems 898 that although CS4297A rev B reports 18-bit ADC resolution, 899 samples are 20-bit */ 900 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20); 901 return 0; 902 } 903 904 static int snd_cs4281_capture_open(struct snd_pcm_substream *substream) 905 { 906 struct cs4281 *chip = snd_pcm_substream_chip(substream); 907 struct snd_pcm_runtime *runtime = substream->runtime; 908 struct cs4281_dma *dma; 909 910 dma = &chip->dma[1]; 911 dma->substream = substream; 912 dma->left_slot = 10; 913 dma->right_slot = 11; 914 runtime->private_data = dma; 915 runtime->hw = snd_cs4281_capture; 916 /* should be detected from the AC'97 layer, but it seems 917 that although CS4297A rev B reports 18-bit ADC resolution, 918 samples are 20-bit */ 919 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20); 920 return 0; 921 } 922 923 static int snd_cs4281_playback_close(struct snd_pcm_substream *substream) 924 { 925 struct cs4281_dma *dma = substream->runtime->private_data; 926 927 dma->substream = NULL; 928 return 0; 929 } 930 931 static int snd_cs4281_capture_close(struct snd_pcm_substream *substream) 932 { 933 struct cs4281_dma *dma = substream->runtime->private_data; 934 935 dma->substream = NULL; 936 return 0; 937 } 938 939 static const struct snd_pcm_ops snd_cs4281_playback_ops = { 940 .open = snd_cs4281_playback_open, 941 .close = snd_cs4281_playback_close, 942 .ioctl = snd_pcm_lib_ioctl, 943 .hw_params = snd_cs4281_hw_params, 944 .hw_free = snd_cs4281_hw_free, 945 .prepare = snd_cs4281_playback_prepare, 946 .trigger = snd_cs4281_trigger, 947 .pointer = snd_cs4281_pointer, 948 }; 949 950 static const struct snd_pcm_ops snd_cs4281_capture_ops = { 951 .open = snd_cs4281_capture_open, 952 .close = snd_cs4281_capture_close, 953 .ioctl = snd_pcm_lib_ioctl, 954 .hw_params = snd_cs4281_hw_params, 955 .hw_free = snd_cs4281_hw_free, 956 .prepare = snd_cs4281_capture_prepare, 957 .trigger = snd_cs4281_trigger, 958 .pointer = snd_cs4281_pointer, 959 }; 960 961 static int snd_cs4281_pcm(struct cs4281 *chip, int device) 962 { 963 struct snd_pcm *pcm; 964 int err; 965 966 err = snd_pcm_new(chip->card, "CS4281", device, 1, 1, &pcm); 967 if (err < 0) 968 return err; 969 970 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_cs4281_playback_ops); 971 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cs4281_capture_ops); 972 973 pcm->private_data = chip; 974 pcm->info_flags = 0; 975 strcpy(pcm->name, "CS4281"); 976 chip->pcm = pcm; 977 978 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 979 snd_dma_pci_data(chip->pci), 64*1024, 512*1024); 980 981 return 0; 982 } 983 984 /* 985 * Mixer section 986 */ 987 988 #define CS_VOL_MASK 0x1f 989 990 static int snd_cs4281_info_volume(struct snd_kcontrol *kcontrol, 991 struct snd_ctl_elem_info *uinfo) 992 { 993 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 994 uinfo->count = 2; 995 uinfo->value.integer.min = 0; 996 uinfo->value.integer.max = CS_VOL_MASK; 997 return 0; 998 } 999 1000 static int snd_cs4281_get_volume(struct snd_kcontrol *kcontrol, 1001 struct snd_ctl_elem_value *ucontrol) 1002 { 1003 struct cs4281 *chip = snd_kcontrol_chip(kcontrol); 1004 int regL = (kcontrol->private_value >> 16) & 0xffff; 1005 int regR = kcontrol->private_value & 0xffff; 1006 int volL, volR; 1007 1008 volL = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regL) & CS_VOL_MASK); 1009 volR = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regR) & CS_VOL_MASK); 1010 1011 ucontrol->value.integer.value[0] = volL; 1012 ucontrol->value.integer.value[1] = volR; 1013 return 0; 1014 } 1015 1016 static int snd_cs4281_put_volume(struct snd_kcontrol *kcontrol, 1017 struct snd_ctl_elem_value *ucontrol) 1018 { 1019 struct cs4281 *chip = snd_kcontrol_chip(kcontrol); 1020 int change = 0; 1021 int regL = (kcontrol->private_value >> 16) & 0xffff; 1022 int regR = kcontrol->private_value & 0xffff; 1023 int volL, volR; 1024 1025 volL = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regL) & CS_VOL_MASK); 1026 volR = CS_VOL_MASK - (snd_cs4281_peekBA0(chip, regR) & CS_VOL_MASK); 1027 1028 if (ucontrol->value.integer.value[0] != volL) { 1029 volL = CS_VOL_MASK - (ucontrol->value.integer.value[0] & CS_VOL_MASK); 1030 snd_cs4281_pokeBA0(chip, regL, volL); 1031 change = 1; 1032 } 1033 if (ucontrol->value.integer.value[1] != volR) { 1034 volR = CS_VOL_MASK - (ucontrol->value.integer.value[1] & CS_VOL_MASK); 1035 snd_cs4281_pokeBA0(chip, regR, volR); 1036 change = 1; 1037 } 1038 return change; 1039 } 1040 1041 static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -4650, 150, 0); 1042 1043 static const struct snd_kcontrol_new snd_cs4281_fm_vol = 1044 { 1045 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1046 .name = "Synth Playback Volume", 1047 .info = snd_cs4281_info_volume, 1048 .get = snd_cs4281_get_volume, 1049 .put = snd_cs4281_put_volume, 1050 .private_value = ((BA0_FMLVC << 16) | BA0_FMRVC), 1051 .tlv = { .p = db_scale_dsp }, 1052 }; 1053 1054 static const struct snd_kcontrol_new snd_cs4281_pcm_vol = 1055 { 1056 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1057 .name = "PCM Stream Playback Volume", 1058 .info = snd_cs4281_info_volume, 1059 .get = snd_cs4281_get_volume, 1060 .put = snd_cs4281_put_volume, 1061 .private_value = ((BA0_PPLVC << 16) | BA0_PPRVC), 1062 .tlv = { .p = db_scale_dsp }, 1063 }; 1064 1065 static void snd_cs4281_mixer_free_ac97_bus(struct snd_ac97_bus *bus) 1066 { 1067 struct cs4281 *chip = bus->private_data; 1068 chip->ac97_bus = NULL; 1069 } 1070 1071 static void snd_cs4281_mixer_free_ac97(struct snd_ac97 *ac97) 1072 { 1073 struct cs4281 *chip = ac97->private_data; 1074 if (ac97->num) 1075 chip->ac97_secondary = NULL; 1076 else 1077 chip->ac97 = NULL; 1078 } 1079 1080 static int snd_cs4281_mixer(struct cs4281 *chip) 1081 { 1082 struct snd_card *card = chip->card; 1083 struct snd_ac97_template ac97; 1084 int err; 1085 static struct snd_ac97_bus_ops ops = { 1086 .write = snd_cs4281_ac97_write, 1087 .read = snd_cs4281_ac97_read, 1088 }; 1089 1090 if ((err = snd_ac97_bus(card, 0, &ops, chip, &chip->ac97_bus)) < 0) 1091 return err; 1092 chip->ac97_bus->private_free = snd_cs4281_mixer_free_ac97_bus; 1093 1094 memset(&ac97, 0, sizeof(ac97)); 1095 ac97.private_data = chip; 1096 ac97.private_free = snd_cs4281_mixer_free_ac97; 1097 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0) 1098 return err; 1099 if (chip->dual_codec) { 1100 ac97.num = 1; 1101 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_secondary)) < 0) 1102 return err; 1103 } 1104 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4281_fm_vol, chip))) < 0) 1105 return err; 1106 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_cs4281_pcm_vol, chip))) < 0) 1107 return err; 1108 return 0; 1109 } 1110 1111 1112 /* 1113 * proc interface 1114 */ 1115 1116 static void snd_cs4281_proc_read(struct snd_info_entry *entry, 1117 struct snd_info_buffer *buffer) 1118 { 1119 struct cs4281 *chip = entry->private_data; 1120 1121 snd_iprintf(buffer, "Cirrus Logic CS4281\n\n"); 1122 snd_iprintf(buffer, "Spurious half IRQs : %u\n", chip->spurious_dhtc_irq); 1123 snd_iprintf(buffer, "Spurious end IRQs : %u\n", chip->spurious_dtc_irq); 1124 } 1125 1126 static ssize_t snd_cs4281_BA0_read(struct snd_info_entry *entry, 1127 void *file_private_data, 1128 struct file *file, char __user *buf, 1129 size_t count, loff_t pos) 1130 { 1131 struct cs4281 *chip = entry->private_data; 1132 1133 if (copy_to_user_fromio(buf, chip->ba0 + pos, count)) 1134 return -EFAULT; 1135 return count; 1136 } 1137 1138 static ssize_t snd_cs4281_BA1_read(struct snd_info_entry *entry, 1139 void *file_private_data, 1140 struct file *file, char __user *buf, 1141 size_t count, loff_t pos) 1142 { 1143 struct cs4281 *chip = entry->private_data; 1144 1145 if (copy_to_user_fromio(buf, chip->ba1 + pos, count)) 1146 return -EFAULT; 1147 return count; 1148 } 1149 1150 static struct snd_info_entry_ops snd_cs4281_proc_ops_BA0 = { 1151 .read = snd_cs4281_BA0_read, 1152 }; 1153 1154 static struct snd_info_entry_ops snd_cs4281_proc_ops_BA1 = { 1155 .read = snd_cs4281_BA1_read, 1156 }; 1157 1158 static void snd_cs4281_proc_init(struct cs4281 *chip) 1159 { 1160 struct snd_info_entry *entry; 1161 1162 snd_card_ro_proc_new(chip->card, "cs4281", chip, snd_cs4281_proc_read); 1163 if (! snd_card_proc_new(chip->card, "cs4281_BA0", &entry)) { 1164 entry->content = SNDRV_INFO_CONTENT_DATA; 1165 entry->private_data = chip; 1166 entry->c.ops = &snd_cs4281_proc_ops_BA0; 1167 entry->size = CS4281_BA0_SIZE; 1168 } 1169 if (! snd_card_proc_new(chip->card, "cs4281_BA1", &entry)) { 1170 entry->content = SNDRV_INFO_CONTENT_DATA; 1171 entry->private_data = chip; 1172 entry->c.ops = &snd_cs4281_proc_ops_BA1; 1173 entry->size = CS4281_BA1_SIZE; 1174 } 1175 } 1176 1177 /* 1178 * joystick support 1179 */ 1180 1181 #if IS_REACHABLE(CONFIG_GAMEPORT) 1182 1183 static void snd_cs4281_gameport_trigger(struct gameport *gameport) 1184 { 1185 struct cs4281 *chip = gameport_get_port_data(gameport); 1186 1187 if (snd_BUG_ON(!chip)) 1188 return; 1189 snd_cs4281_pokeBA0(chip, BA0_JSPT, 0xff); 1190 } 1191 1192 static unsigned char snd_cs4281_gameport_read(struct gameport *gameport) 1193 { 1194 struct cs4281 *chip = gameport_get_port_data(gameport); 1195 1196 if (snd_BUG_ON(!chip)) 1197 return 0; 1198 return snd_cs4281_peekBA0(chip, BA0_JSPT); 1199 } 1200 1201 #ifdef COOKED_MODE 1202 static int snd_cs4281_gameport_cooked_read(struct gameport *gameport, 1203 int *axes, int *buttons) 1204 { 1205 struct cs4281 *chip = gameport_get_port_data(gameport); 1206 unsigned js1, js2, jst; 1207 1208 if (snd_BUG_ON(!chip)) 1209 return 0; 1210 1211 js1 = snd_cs4281_peekBA0(chip, BA0_JSC1); 1212 js2 = snd_cs4281_peekBA0(chip, BA0_JSC2); 1213 jst = snd_cs4281_peekBA0(chip, BA0_JSPT); 1214 1215 *buttons = (~jst >> 4) & 0x0F; 1216 1217 axes[0] = ((js1 & JSC1_Y1V_MASK) >> JSC1_Y1V_SHIFT) & 0xFFFF; 1218 axes[1] = ((js1 & JSC1_X1V_MASK) >> JSC1_X1V_SHIFT) & 0xFFFF; 1219 axes[2] = ((js2 & JSC2_Y2V_MASK) >> JSC2_Y2V_SHIFT) & 0xFFFF; 1220 axes[3] = ((js2 & JSC2_X2V_MASK) >> JSC2_X2V_SHIFT) & 0xFFFF; 1221 1222 for (jst = 0; jst < 4; ++jst) 1223 if (axes[jst] == 0xFFFF) axes[jst] = -1; 1224 return 0; 1225 } 1226 #else 1227 #define snd_cs4281_gameport_cooked_read NULL 1228 #endif 1229 1230 static int snd_cs4281_gameport_open(struct gameport *gameport, int mode) 1231 { 1232 switch (mode) { 1233 #ifdef COOKED_MODE 1234 case GAMEPORT_MODE_COOKED: 1235 return 0; 1236 #endif 1237 case GAMEPORT_MODE_RAW: 1238 return 0; 1239 default: 1240 return -1; 1241 } 1242 return 0; 1243 } 1244 1245 static int snd_cs4281_create_gameport(struct cs4281 *chip) 1246 { 1247 struct gameport *gp; 1248 1249 chip->gameport = gp = gameport_allocate_port(); 1250 if (!gp) { 1251 dev_err(chip->card->dev, 1252 "cannot allocate memory for gameport\n"); 1253 return -ENOMEM; 1254 } 1255 1256 gameport_set_name(gp, "CS4281 Gameport"); 1257 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci)); 1258 gameport_set_dev_parent(gp, &chip->pci->dev); 1259 gp->open = snd_cs4281_gameport_open; 1260 gp->read = snd_cs4281_gameport_read; 1261 gp->trigger = snd_cs4281_gameport_trigger; 1262 gp->cooked_read = snd_cs4281_gameport_cooked_read; 1263 gameport_set_port_data(gp, chip); 1264 1265 snd_cs4281_pokeBA0(chip, BA0_JSIO, 0xFF); // ? 1266 snd_cs4281_pokeBA0(chip, BA0_JSCTL, JSCTL_SP_MEDIUM_SLOW); 1267 1268 gameport_register_port(gp); 1269 1270 return 0; 1271 } 1272 1273 static void snd_cs4281_free_gameport(struct cs4281 *chip) 1274 { 1275 if (chip->gameport) { 1276 gameport_unregister_port(chip->gameport); 1277 chip->gameport = NULL; 1278 } 1279 } 1280 #else 1281 static inline int snd_cs4281_create_gameport(struct cs4281 *chip) { return -ENOSYS; } 1282 static inline void snd_cs4281_free_gameport(struct cs4281 *chip) { } 1283 #endif /* IS_REACHABLE(CONFIG_GAMEPORT) */ 1284 1285 static int snd_cs4281_free(struct cs4281 *chip) 1286 { 1287 snd_cs4281_free_gameport(chip); 1288 1289 if (chip->irq >= 0) 1290 synchronize_irq(chip->irq); 1291 1292 /* Mask interrupts */ 1293 snd_cs4281_pokeBA0(chip, BA0_HIMR, 0x7fffffff); 1294 /* Stop the DLL Clock logic. */ 1295 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, 0); 1296 /* Sound System Power Management - Turn Everything OFF */ 1297 snd_cs4281_pokeBA0(chip, BA0_SSPM, 0); 1298 /* PCI interface - D3 state */ 1299 pci_set_power_state(chip->pci, PCI_D3hot); 1300 1301 if (chip->irq >= 0) 1302 free_irq(chip->irq, chip); 1303 iounmap(chip->ba0); 1304 iounmap(chip->ba1); 1305 pci_release_regions(chip->pci); 1306 pci_disable_device(chip->pci); 1307 1308 kfree(chip); 1309 return 0; 1310 } 1311 1312 static int snd_cs4281_dev_free(struct snd_device *device) 1313 { 1314 struct cs4281 *chip = device->device_data; 1315 return snd_cs4281_free(chip); 1316 } 1317 1318 static int snd_cs4281_chip_init(struct cs4281 *chip); /* defined below */ 1319 1320 static int snd_cs4281_create(struct snd_card *card, 1321 struct pci_dev *pci, 1322 struct cs4281 **rchip, 1323 int dual_codec) 1324 { 1325 struct cs4281 *chip; 1326 unsigned int tmp; 1327 int err; 1328 static struct snd_device_ops ops = { 1329 .dev_free = snd_cs4281_dev_free, 1330 }; 1331 1332 *rchip = NULL; 1333 if ((err = pci_enable_device(pci)) < 0) 1334 return err; 1335 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 1336 if (chip == NULL) { 1337 pci_disable_device(pci); 1338 return -ENOMEM; 1339 } 1340 spin_lock_init(&chip->reg_lock); 1341 chip->card = card; 1342 chip->pci = pci; 1343 chip->irq = -1; 1344 pci_set_master(pci); 1345 if (dual_codec < 0 || dual_codec > 3) { 1346 dev_err(card->dev, "invalid dual_codec option %d\n", dual_codec); 1347 dual_codec = 0; 1348 } 1349 chip->dual_codec = dual_codec; 1350 1351 if ((err = pci_request_regions(pci, "CS4281")) < 0) { 1352 kfree(chip); 1353 pci_disable_device(pci); 1354 return err; 1355 } 1356 chip->ba0_addr = pci_resource_start(pci, 0); 1357 chip->ba1_addr = pci_resource_start(pci, 1); 1358 1359 chip->ba0 = pci_ioremap_bar(pci, 0); 1360 chip->ba1 = pci_ioremap_bar(pci, 1); 1361 if (!chip->ba0 || !chip->ba1) { 1362 snd_cs4281_free(chip); 1363 return -ENOMEM; 1364 } 1365 1366 if (request_irq(pci->irq, snd_cs4281_interrupt, IRQF_SHARED, 1367 KBUILD_MODNAME, chip)) { 1368 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 1369 snd_cs4281_free(chip); 1370 return -ENOMEM; 1371 } 1372 chip->irq = pci->irq; 1373 1374 tmp = snd_cs4281_chip_init(chip); 1375 if (tmp) { 1376 snd_cs4281_free(chip); 1377 return tmp; 1378 } 1379 1380 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 1381 snd_cs4281_free(chip); 1382 return err; 1383 } 1384 1385 snd_cs4281_proc_init(chip); 1386 1387 *rchip = chip; 1388 return 0; 1389 } 1390 1391 static int snd_cs4281_chip_init(struct cs4281 *chip) 1392 { 1393 unsigned int tmp; 1394 unsigned long end_time; 1395 int retry_count = 2; 1396 1397 /* Having EPPMC.FPDN=1 prevent proper chip initialisation */ 1398 tmp = snd_cs4281_peekBA0(chip, BA0_EPPMC); 1399 if (tmp & BA0_EPPMC_FPDN) 1400 snd_cs4281_pokeBA0(chip, BA0_EPPMC, tmp & ~BA0_EPPMC_FPDN); 1401 1402 __retry: 1403 tmp = snd_cs4281_peekBA0(chip, BA0_CFLR); 1404 if (tmp != BA0_CFLR_DEFAULT) { 1405 snd_cs4281_pokeBA0(chip, BA0_CFLR, BA0_CFLR_DEFAULT); 1406 tmp = snd_cs4281_peekBA0(chip, BA0_CFLR); 1407 if (tmp != BA0_CFLR_DEFAULT) { 1408 dev_err(chip->card->dev, 1409 "CFLR setup failed (0x%x)\n", tmp); 1410 return -EIO; 1411 } 1412 } 1413 1414 /* Set the 'Configuration Write Protect' register 1415 * to 4281h. Allows vendor-defined configuration 1416 * space between 0e4h and 0ffh to be written. */ 1417 snd_cs4281_pokeBA0(chip, BA0_CWPR, 0x4281); 1418 1419 if ((tmp = snd_cs4281_peekBA0(chip, BA0_SERC1)) != (BA0_SERC1_SO1EN | BA0_SERC1_AC97)) { 1420 dev_err(chip->card->dev, 1421 "SERC1 AC'97 check failed (0x%x)\n", tmp); 1422 return -EIO; 1423 } 1424 if ((tmp = snd_cs4281_peekBA0(chip, BA0_SERC2)) != (BA0_SERC2_SI1EN | BA0_SERC2_AC97)) { 1425 dev_err(chip->card->dev, 1426 "SERC2 AC'97 check failed (0x%x)\n", tmp); 1427 return -EIO; 1428 } 1429 1430 /* Sound System Power Management */ 1431 snd_cs4281_pokeBA0(chip, BA0_SSPM, BA0_SSPM_MIXEN | BA0_SSPM_CSRCEN | 1432 BA0_SSPM_PSRCEN | BA0_SSPM_JSEN | 1433 BA0_SSPM_ACLEN | BA0_SSPM_FMEN); 1434 1435 /* Serial Port Power Management */ 1436 /* Blast the clock control register to zero so that the 1437 * PLL starts out in a known state, and blast the master serial 1438 * port control register to zero so that the serial ports also 1439 * start out in a known state. */ 1440 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, 0); 1441 snd_cs4281_pokeBA0(chip, BA0_SERMC, 0); 1442 1443 /* Make ESYN go to zero to turn off 1444 * the Sync pulse on the AC97 link. */ 1445 snd_cs4281_pokeBA0(chip, BA0_ACCTL, 0); 1446 udelay(50); 1447 1448 /* Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97 1449 * spec) and then drive it high. This is done for non AC97 modes since 1450 * there might be logic external to the CS4281 that uses the ARST# line 1451 * for a reset. */ 1452 snd_cs4281_pokeBA0(chip, BA0_SPMC, 0); 1453 udelay(50); 1454 snd_cs4281_pokeBA0(chip, BA0_SPMC, BA0_SPMC_RSTN); 1455 msleep(50); 1456 1457 if (chip->dual_codec) 1458 snd_cs4281_pokeBA0(chip, BA0_SPMC, BA0_SPMC_RSTN | BA0_SPMC_ASDI2E); 1459 1460 /* 1461 * Set the serial port timing configuration. 1462 */ 1463 snd_cs4281_pokeBA0(chip, BA0_SERMC, 1464 (chip->dual_codec ? BA0_SERMC_TCID(chip->dual_codec) : BA0_SERMC_TCID(1)) | 1465 BA0_SERMC_PTC_AC97 | BA0_SERMC_MSPE); 1466 1467 /* 1468 * Start the DLL Clock logic. 1469 */ 1470 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, BA0_CLKCR1_DLLP); 1471 msleep(50); 1472 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, BA0_CLKCR1_SWCE | BA0_CLKCR1_DLLP); 1473 1474 /* 1475 * Wait for the DLL ready signal from the clock logic. 1476 */ 1477 end_time = jiffies + HZ; 1478 do { 1479 /* 1480 * Read the AC97 status register to see if we've seen a CODEC 1481 * signal from the AC97 codec. 1482 */ 1483 if (snd_cs4281_peekBA0(chip, BA0_CLKCR1) & BA0_CLKCR1_DLLRDY) 1484 goto __ok0; 1485 schedule_timeout_uninterruptible(1); 1486 } while (time_after_eq(end_time, jiffies)); 1487 1488 dev_err(chip->card->dev, "DLLRDY not seen\n"); 1489 return -EIO; 1490 1491 __ok0: 1492 1493 /* 1494 * The first thing we do here is to enable sync generation. As soon 1495 * as we start receiving bit clock, we'll start producing the SYNC 1496 * signal. 1497 */ 1498 snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_ESYN); 1499 1500 /* 1501 * Wait for the codec ready signal from the AC97 codec. 1502 */ 1503 end_time = jiffies + HZ; 1504 do { 1505 /* 1506 * Read the AC97 status register to see if we've seen a CODEC 1507 * signal from the AC97 codec. 1508 */ 1509 if (snd_cs4281_peekBA0(chip, BA0_ACSTS) & BA0_ACSTS_CRDY) 1510 goto __ok1; 1511 schedule_timeout_uninterruptible(1); 1512 } while (time_after_eq(end_time, jiffies)); 1513 1514 dev_err(chip->card->dev, 1515 "never read codec ready from AC'97 (0x%x)\n", 1516 snd_cs4281_peekBA0(chip, BA0_ACSTS)); 1517 return -EIO; 1518 1519 __ok1: 1520 if (chip->dual_codec) { 1521 end_time = jiffies + HZ; 1522 do { 1523 if (snd_cs4281_peekBA0(chip, BA0_ACSTS2) & BA0_ACSTS_CRDY) 1524 goto __codec2_ok; 1525 schedule_timeout_uninterruptible(1); 1526 } while (time_after_eq(end_time, jiffies)); 1527 dev_info(chip->card->dev, 1528 "secondary codec doesn't respond. disable it...\n"); 1529 chip->dual_codec = 0; 1530 __codec2_ok: ; 1531 } 1532 1533 /* 1534 * Assert the valid frame signal so that we can start sending commands 1535 * to the AC97 codec. 1536 */ 1537 1538 snd_cs4281_pokeBA0(chip, BA0_ACCTL, BA0_ACCTL_VFRM | BA0_ACCTL_ESYN); 1539 1540 /* 1541 * Wait until we've sampled input slots 3 and 4 as valid, meaning that 1542 * the codec is pumping ADC data across the AC-link. 1543 */ 1544 1545 end_time = jiffies + HZ; 1546 do { 1547 /* 1548 * Read the input slot valid register and see if input slots 3 1549 * 4 are valid yet. 1550 */ 1551 if ((snd_cs4281_peekBA0(chip, BA0_ACISV) & (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4))) == (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4))) 1552 goto __ok2; 1553 schedule_timeout_uninterruptible(1); 1554 } while (time_after_eq(end_time, jiffies)); 1555 1556 if (--retry_count > 0) 1557 goto __retry; 1558 dev_err(chip->card->dev, "never read ISV3 and ISV4 from AC'97\n"); 1559 return -EIO; 1560 1561 __ok2: 1562 1563 /* 1564 * Now, assert valid frame and the slot 3 and 4 valid bits. This will 1565 * commense the transfer of digital audio data to the AC97 codec. 1566 */ 1567 snd_cs4281_pokeBA0(chip, BA0_ACOSV, BA0_ACOSV_SLV(3) | BA0_ACOSV_SLV(4)); 1568 1569 /* 1570 * Initialize DMA structures 1571 */ 1572 for (tmp = 0; tmp < 4; tmp++) { 1573 struct cs4281_dma *dma = &chip->dma[tmp]; 1574 dma->regDBA = BA0_DBA0 + (tmp * 0x10); 1575 dma->regDCA = BA0_DCA0 + (tmp * 0x10); 1576 dma->regDBC = BA0_DBC0 + (tmp * 0x10); 1577 dma->regDCC = BA0_DCC0 + (tmp * 0x10); 1578 dma->regDMR = BA0_DMR0 + (tmp * 8); 1579 dma->regDCR = BA0_DCR0 + (tmp * 8); 1580 dma->regHDSR = BA0_HDSR0 + (tmp * 4); 1581 dma->regFCR = BA0_FCR0 + (tmp * 4); 1582 dma->regFSIC = BA0_FSIC0 + (tmp * 4); 1583 dma->fifo_offset = tmp * CS4281_FIFO_SIZE; 1584 snd_cs4281_pokeBA0(chip, dma->regFCR, 1585 BA0_FCR_LS(31) | 1586 BA0_FCR_RS(31) | 1587 BA0_FCR_SZ(CS4281_FIFO_SIZE) | 1588 BA0_FCR_OF(dma->fifo_offset)); 1589 } 1590 1591 chip->src_left_play_slot = 0; /* AC'97 left PCM playback (3) */ 1592 chip->src_right_play_slot = 1; /* AC'97 right PCM playback (4) */ 1593 chip->src_left_rec_slot = 10; /* AC'97 left PCM record (3) */ 1594 chip->src_right_rec_slot = 11; /* AC'97 right PCM record (4) */ 1595 1596 /* Activate wave playback FIFO for FM playback */ 1597 chip->dma[0].valFCR = BA0_FCR_FEN | BA0_FCR_LS(0) | 1598 BA0_FCR_RS(1) | 1599 BA0_FCR_SZ(CS4281_FIFO_SIZE) | 1600 BA0_FCR_OF(chip->dma[0].fifo_offset); 1601 snd_cs4281_pokeBA0(chip, chip->dma[0].regFCR, chip->dma[0].valFCR); 1602 snd_cs4281_pokeBA0(chip, BA0_SRCSA, (chip->src_left_play_slot << 0) | 1603 (chip->src_right_play_slot << 8) | 1604 (chip->src_left_rec_slot << 16) | 1605 (chip->src_right_rec_slot << 24)); 1606 1607 /* Initialize digital volume */ 1608 snd_cs4281_pokeBA0(chip, BA0_PPLVC, 0); 1609 snd_cs4281_pokeBA0(chip, BA0_PPRVC, 0); 1610 1611 /* Enable IRQs */ 1612 snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI); 1613 /* Unmask interrupts */ 1614 snd_cs4281_pokeBA0(chip, BA0_HIMR, 0x7fffffff & ~( 1615 BA0_HISR_MIDI | 1616 BA0_HISR_DMAI | 1617 BA0_HISR_DMA(0) | 1618 BA0_HISR_DMA(1) | 1619 BA0_HISR_DMA(2) | 1620 BA0_HISR_DMA(3))); 1621 synchronize_irq(chip->irq); 1622 1623 return 0; 1624 } 1625 1626 /* 1627 * MIDI section 1628 */ 1629 1630 static void snd_cs4281_midi_reset(struct cs4281 *chip) 1631 { 1632 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr | BA0_MIDCR_MRST); 1633 udelay(100); 1634 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1635 } 1636 1637 static int snd_cs4281_midi_input_open(struct snd_rawmidi_substream *substream) 1638 { 1639 struct cs4281 *chip = substream->rmidi->private_data; 1640 1641 spin_lock_irq(&chip->reg_lock); 1642 chip->midcr |= BA0_MIDCR_RXE; 1643 chip->midi_input = substream; 1644 if (!(chip->uartm & CS4281_MODE_OUTPUT)) { 1645 snd_cs4281_midi_reset(chip); 1646 } else { 1647 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1648 } 1649 spin_unlock_irq(&chip->reg_lock); 1650 return 0; 1651 } 1652 1653 static int snd_cs4281_midi_input_close(struct snd_rawmidi_substream *substream) 1654 { 1655 struct cs4281 *chip = substream->rmidi->private_data; 1656 1657 spin_lock_irq(&chip->reg_lock); 1658 chip->midcr &= ~(BA0_MIDCR_RXE | BA0_MIDCR_RIE); 1659 chip->midi_input = NULL; 1660 if (!(chip->uartm & CS4281_MODE_OUTPUT)) { 1661 snd_cs4281_midi_reset(chip); 1662 } else { 1663 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1664 } 1665 chip->uartm &= ~CS4281_MODE_INPUT; 1666 spin_unlock_irq(&chip->reg_lock); 1667 return 0; 1668 } 1669 1670 static int snd_cs4281_midi_output_open(struct snd_rawmidi_substream *substream) 1671 { 1672 struct cs4281 *chip = substream->rmidi->private_data; 1673 1674 spin_lock_irq(&chip->reg_lock); 1675 chip->uartm |= CS4281_MODE_OUTPUT; 1676 chip->midcr |= BA0_MIDCR_TXE; 1677 chip->midi_output = substream; 1678 if (!(chip->uartm & CS4281_MODE_INPUT)) { 1679 snd_cs4281_midi_reset(chip); 1680 } else { 1681 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1682 } 1683 spin_unlock_irq(&chip->reg_lock); 1684 return 0; 1685 } 1686 1687 static int snd_cs4281_midi_output_close(struct snd_rawmidi_substream *substream) 1688 { 1689 struct cs4281 *chip = substream->rmidi->private_data; 1690 1691 spin_lock_irq(&chip->reg_lock); 1692 chip->midcr &= ~(BA0_MIDCR_TXE | BA0_MIDCR_TIE); 1693 chip->midi_output = NULL; 1694 if (!(chip->uartm & CS4281_MODE_INPUT)) { 1695 snd_cs4281_midi_reset(chip); 1696 } else { 1697 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1698 } 1699 chip->uartm &= ~CS4281_MODE_OUTPUT; 1700 spin_unlock_irq(&chip->reg_lock); 1701 return 0; 1702 } 1703 1704 static void snd_cs4281_midi_input_trigger(struct snd_rawmidi_substream *substream, int up) 1705 { 1706 unsigned long flags; 1707 struct cs4281 *chip = substream->rmidi->private_data; 1708 1709 spin_lock_irqsave(&chip->reg_lock, flags); 1710 if (up) { 1711 if ((chip->midcr & BA0_MIDCR_RIE) == 0) { 1712 chip->midcr |= BA0_MIDCR_RIE; 1713 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1714 } 1715 } else { 1716 if (chip->midcr & BA0_MIDCR_RIE) { 1717 chip->midcr &= ~BA0_MIDCR_RIE; 1718 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1719 } 1720 } 1721 spin_unlock_irqrestore(&chip->reg_lock, flags); 1722 } 1723 1724 static void snd_cs4281_midi_output_trigger(struct snd_rawmidi_substream *substream, int up) 1725 { 1726 unsigned long flags; 1727 struct cs4281 *chip = substream->rmidi->private_data; 1728 unsigned char byte; 1729 1730 spin_lock_irqsave(&chip->reg_lock, flags); 1731 if (up) { 1732 if ((chip->midcr & BA0_MIDCR_TIE) == 0) { 1733 chip->midcr |= BA0_MIDCR_TIE; 1734 /* fill UART FIFO buffer at first, and turn Tx interrupts only if necessary */ 1735 while ((chip->midcr & BA0_MIDCR_TIE) && 1736 (snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_TBF) == 0) { 1737 if (snd_rawmidi_transmit(substream, &byte, 1) != 1) { 1738 chip->midcr &= ~BA0_MIDCR_TIE; 1739 } else { 1740 snd_cs4281_pokeBA0(chip, BA0_MIDWP, byte); 1741 } 1742 } 1743 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1744 } 1745 } else { 1746 if (chip->midcr & BA0_MIDCR_TIE) { 1747 chip->midcr &= ~BA0_MIDCR_TIE; 1748 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1749 } 1750 } 1751 spin_unlock_irqrestore(&chip->reg_lock, flags); 1752 } 1753 1754 static const struct snd_rawmidi_ops snd_cs4281_midi_output = 1755 { 1756 .open = snd_cs4281_midi_output_open, 1757 .close = snd_cs4281_midi_output_close, 1758 .trigger = snd_cs4281_midi_output_trigger, 1759 }; 1760 1761 static const struct snd_rawmidi_ops snd_cs4281_midi_input = 1762 { 1763 .open = snd_cs4281_midi_input_open, 1764 .close = snd_cs4281_midi_input_close, 1765 .trigger = snd_cs4281_midi_input_trigger, 1766 }; 1767 1768 static int snd_cs4281_midi(struct cs4281 *chip, int device) 1769 { 1770 struct snd_rawmidi *rmidi; 1771 int err; 1772 1773 if ((err = snd_rawmidi_new(chip->card, "CS4281", device, 1, 1, &rmidi)) < 0) 1774 return err; 1775 strcpy(rmidi->name, "CS4281"); 1776 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_cs4281_midi_output); 1777 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_cs4281_midi_input); 1778 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX; 1779 rmidi->private_data = chip; 1780 chip->rmidi = rmidi; 1781 return 0; 1782 } 1783 1784 /* 1785 * Interrupt handler 1786 */ 1787 1788 static irqreturn_t snd_cs4281_interrupt(int irq, void *dev_id) 1789 { 1790 struct cs4281 *chip = dev_id; 1791 unsigned int status, dma, val; 1792 struct cs4281_dma *cdma; 1793 1794 if (chip == NULL) 1795 return IRQ_NONE; 1796 status = snd_cs4281_peekBA0(chip, BA0_HISR); 1797 if ((status & 0x7fffffff) == 0) { 1798 snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI); 1799 return IRQ_NONE; 1800 } 1801 1802 if (status & (BA0_HISR_DMA(0)|BA0_HISR_DMA(1)|BA0_HISR_DMA(2)|BA0_HISR_DMA(3))) { 1803 for (dma = 0; dma < 4; dma++) 1804 if (status & BA0_HISR_DMA(dma)) { 1805 cdma = &chip->dma[dma]; 1806 spin_lock(&chip->reg_lock); 1807 /* ack DMA IRQ */ 1808 val = snd_cs4281_peekBA0(chip, cdma->regHDSR); 1809 /* workaround, sometimes CS4281 acknowledges */ 1810 /* end or middle transfer position twice */ 1811 cdma->frag++; 1812 if ((val & BA0_HDSR_DHTC) && !(cdma->frag & 1)) { 1813 cdma->frag--; 1814 chip->spurious_dhtc_irq++; 1815 spin_unlock(&chip->reg_lock); 1816 continue; 1817 } 1818 if ((val & BA0_HDSR_DTC) && (cdma->frag & 1)) { 1819 cdma->frag--; 1820 chip->spurious_dtc_irq++; 1821 spin_unlock(&chip->reg_lock); 1822 continue; 1823 } 1824 spin_unlock(&chip->reg_lock); 1825 snd_pcm_period_elapsed(cdma->substream); 1826 } 1827 } 1828 1829 if ((status & BA0_HISR_MIDI) && chip->rmidi) { 1830 unsigned char c; 1831 1832 spin_lock(&chip->reg_lock); 1833 while ((snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_RBE) == 0) { 1834 c = snd_cs4281_peekBA0(chip, BA0_MIDRP); 1835 if ((chip->midcr & BA0_MIDCR_RIE) == 0) 1836 continue; 1837 snd_rawmidi_receive(chip->midi_input, &c, 1); 1838 } 1839 while ((snd_cs4281_peekBA0(chip, BA0_MIDSR) & BA0_MIDSR_TBF) == 0) { 1840 if ((chip->midcr & BA0_MIDCR_TIE) == 0) 1841 break; 1842 if (snd_rawmidi_transmit(chip->midi_output, &c, 1) != 1) { 1843 chip->midcr &= ~BA0_MIDCR_TIE; 1844 snd_cs4281_pokeBA0(chip, BA0_MIDCR, chip->midcr); 1845 break; 1846 } 1847 snd_cs4281_pokeBA0(chip, BA0_MIDWP, c); 1848 } 1849 spin_unlock(&chip->reg_lock); 1850 } 1851 1852 /* EOI to the PCI part... reenables interrupts */ 1853 snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_EOI); 1854 1855 return IRQ_HANDLED; 1856 } 1857 1858 1859 /* 1860 * OPL3 command 1861 */ 1862 static void snd_cs4281_opl3_command(struct snd_opl3 *opl3, unsigned short cmd, 1863 unsigned char val) 1864 { 1865 unsigned long flags; 1866 struct cs4281 *chip = opl3->private_data; 1867 void __iomem *port; 1868 1869 if (cmd & OPL3_RIGHT) 1870 port = chip->ba0 + BA0_B1AP; /* right port */ 1871 else 1872 port = chip->ba0 + BA0_B0AP; /* left port */ 1873 1874 spin_lock_irqsave(&opl3->reg_lock, flags); 1875 1876 writel((unsigned int)cmd, port); 1877 udelay(10); 1878 1879 writel((unsigned int)val, port + 4); 1880 udelay(30); 1881 1882 spin_unlock_irqrestore(&opl3->reg_lock, flags); 1883 } 1884 1885 static int snd_cs4281_probe(struct pci_dev *pci, 1886 const struct pci_device_id *pci_id) 1887 { 1888 static int dev; 1889 struct snd_card *card; 1890 struct cs4281 *chip; 1891 struct snd_opl3 *opl3; 1892 int err; 1893 1894 if (dev >= SNDRV_CARDS) 1895 return -ENODEV; 1896 if (!enable[dev]) { 1897 dev++; 1898 return -ENOENT; 1899 } 1900 1901 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 1902 0, &card); 1903 if (err < 0) 1904 return err; 1905 1906 if ((err = snd_cs4281_create(card, pci, &chip, dual_codec[dev])) < 0) { 1907 snd_card_free(card); 1908 return err; 1909 } 1910 card->private_data = chip; 1911 1912 if ((err = snd_cs4281_mixer(chip)) < 0) { 1913 snd_card_free(card); 1914 return err; 1915 } 1916 if ((err = snd_cs4281_pcm(chip, 0)) < 0) { 1917 snd_card_free(card); 1918 return err; 1919 } 1920 if ((err = snd_cs4281_midi(chip, 0)) < 0) { 1921 snd_card_free(card); 1922 return err; 1923 } 1924 if ((err = snd_opl3_new(card, OPL3_HW_OPL3_CS4281, &opl3)) < 0) { 1925 snd_card_free(card); 1926 return err; 1927 } 1928 opl3->private_data = chip; 1929 opl3->command = snd_cs4281_opl3_command; 1930 snd_opl3_init(opl3); 1931 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) { 1932 snd_card_free(card); 1933 return err; 1934 } 1935 snd_cs4281_create_gameport(chip); 1936 strcpy(card->driver, "CS4281"); 1937 strcpy(card->shortname, "Cirrus Logic CS4281"); 1938 sprintf(card->longname, "%s at 0x%lx, irq %d", 1939 card->shortname, 1940 chip->ba0_addr, 1941 chip->irq); 1942 1943 if ((err = snd_card_register(card)) < 0) { 1944 snd_card_free(card); 1945 return err; 1946 } 1947 1948 pci_set_drvdata(pci, card); 1949 dev++; 1950 return 0; 1951 } 1952 1953 static void snd_cs4281_remove(struct pci_dev *pci) 1954 { 1955 snd_card_free(pci_get_drvdata(pci)); 1956 } 1957 1958 /* 1959 * Power Management 1960 */ 1961 #ifdef CONFIG_PM_SLEEP 1962 1963 static int saved_regs[SUSPEND_REGISTERS] = { 1964 BA0_JSCTL, 1965 BA0_GPIOR, 1966 BA0_SSCR, 1967 BA0_MIDCR, 1968 BA0_SRCSA, 1969 BA0_PASR, 1970 BA0_CASR, 1971 BA0_DACSR, 1972 BA0_ADCSR, 1973 BA0_FMLVC, 1974 BA0_FMRVC, 1975 BA0_PPLVC, 1976 BA0_PPRVC, 1977 }; 1978 1979 #define CLKCR1_CKRA 0x00010000L 1980 1981 static int cs4281_suspend(struct device *dev) 1982 { 1983 struct snd_card *card = dev_get_drvdata(dev); 1984 struct cs4281 *chip = card->private_data; 1985 u32 ulCLK; 1986 unsigned int i; 1987 1988 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 1989 snd_ac97_suspend(chip->ac97); 1990 snd_ac97_suspend(chip->ac97_secondary); 1991 1992 ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); 1993 ulCLK |= CLKCR1_CKRA; 1994 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK); 1995 1996 /* Disable interrupts. */ 1997 snd_cs4281_pokeBA0(chip, BA0_HICR, BA0_HICR_CHGM); 1998 1999 /* remember the status registers */ 2000 for (i = 0; i < ARRAY_SIZE(saved_regs); i++) 2001 if (saved_regs[i]) 2002 chip->suspend_regs[i] = snd_cs4281_peekBA0(chip, saved_regs[i]); 2003 2004 /* Turn off the serial ports. */ 2005 snd_cs4281_pokeBA0(chip, BA0_SERMC, 0); 2006 2007 /* Power off FM, Joystick, AC link, */ 2008 snd_cs4281_pokeBA0(chip, BA0_SSPM, 0); 2009 2010 /* DLL off. */ 2011 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, 0); 2012 2013 /* AC link off. */ 2014 snd_cs4281_pokeBA0(chip, BA0_SPMC, 0); 2015 2016 ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); 2017 ulCLK &= ~CLKCR1_CKRA; 2018 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK); 2019 return 0; 2020 } 2021 2022 static int cs4281_resume(struct device *dev) 2023 { 2024 struct snd_card *card = dev_get_drvdata(dev); 2025 struct cs4281 *chip = card->private_data; 2026 unsigned int i; 2027 u32 ulCLK; 2028 2029 ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); 2030 ulCLK |= CLKCR1_CKRA; 2031 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK); 2032 2033 snd_cs4281_chip_init(chip); 2034 2035 /* restore the status registers */ 2036 for (i = 0; i < ARRAY_SIZE(saved_regs); i++) 2037 if (saved_regs[i]) 2038 snd_cs4281_pokeBA0(chip, saved_regs[i], chip->suspend_regs[i]); 2039 2040 snd_ac97_resume(chip->ac97); 2041 snd_ac97_resume(chip->ac97_secondary); 2042 2043 ulCLK = snd_cs4281_peekBA0(chip, BA0_CLKCR1); 2044 ulCLK &= ~CLKCR1_CKRA; 2045 snd_cs4281_pokeBA0(chip, BA0_CLKCR1, ulCLK); 2046 2047 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 2048 return 0; 2049 } 2050 2051 static SIMPLE_DEV_PM_OPS(cs4281_pm, cs4281_suspend, cs4281_resume); 2052 #define CS4281_PM_OPS &cs4281_pm 2053 #else 2054 #define CS4281_PM_OPS NULL 2055 #endif /* CONFIG_PM_SLEEP */ 2056 2057 static struct pci_driver cs4281_driver = { 2058 .name = KBUILD_MODNAME, 2059 .id_table = snd_cs4281_ids, 2060 .probe = snd_cs4281_probe, 2061 .remove = snd_cs4281_remove, 2062 .driver = { 2063 .pm = CS4281_PM_OPS, 2064 }, 2065 }; 2066 2067 module_pci_driver(cs4281_driver); 2068