1 /* 2 * Driver for CS4231 sound chips found on Sparcs. 3 * Copyright (C) 2002, 2008 David S. Miller <davem@davemloft.net> 4 * 5 * Based entirely upon drivers/sbus/audio/cs4231.c which is: 6 * Copyright (C) 1996, 1997, 1998 Derrick J Brashear (shadow@andrew.cmu.edu) 7 * and also sound/isa/cs423x/cs4231_lib.c which is: 8 * Copyright (c) by Jaroslav Kysela <perex@perex.cz> 9 */ 10 11 #include <linux/module.h> 12 #include <linux/kernel.h> 13 #include <linux/delay.h> 14 #include <linux/init.h> 15 #include <linux/interrupt.h> 16 #include <linux/moduleparam.h> 17 #include <linux/irq.h> 18 #include <linux/io.h> 19 #include <linux/of.h> 20 #include <linux/of_device.h> 21 22 #include <sound/core.h> 23 #include <sound/pcm.h> 24 #include <sound/info.h> 25 #include <sound/control.h> 26 #include <sound/timer.h> 27 #include <sound/initval.h> 28 #include <sound/pcm_params.h> 29 30 #ifdef CONFIG_SBUS 31 #define SBUS_SUPPORT 32 #endif 33 34 #if defined(CONFIG_PCI) && defined(CONFIG_SPARC64) 35 #define EBUS_SUPPORT 36 #include <linux/pci.h> 37 #include <asm/ebus_dma.h> 38 #endif 39 40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 42 /* Enable this card */ 43 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 44 45 module_param_array(index, int, NULL, 0444); 46 MODULE_PARM_DESC(index, "Index value for Sun CS4231 soundcard."); 47 module_param_array(id, charp, NULL, 0444); 48 MODULE_PARM_DESC(id, "ID string for Sun CS4231 soundcard."); 49 module_param_array(enable, bool, NULL, 0444); 50 MODULE_PARM_DESC(enable, "Enable Sun CS4231 soundcard."); 51 MODULE_AUTHOR("Jaroslav Kysela, Derrick J. Brashear and David S. Miller"); 52 MODULE_DESCRIPTION("Sun CS4231"); 53 MODULE_LICENSE("GPL"); 54 MODULE_SUPPORTED_DEVICE("{{Sun,CS4231}}"); 55 56 #ifdef SBUS_SUPPORT 57 struct sbus_dma_info { 58 spinlock_t lock; /* DMA access lock */ 59 int dir; 60 void __iomem *regs; 61 }; 62 #endif 63 64 struct snd_cs4231; 65 struct cs4231_dma_control { 66 void (*prepare)(struct cs4231_dma_control *dma_cont, 67 int dir); 68 void (*enable)(struct cs4231_dma_control *dma_cont, int on); 69 int (*request)(struct cs4231_dma_control *dma_cont, 70 dma_addr_t bus_addr, size_t len); 71 unsigned int (*address)(struct cs4231_dma_control *dma_cont); 72 #ifdef EBUS_SUPPORT 73 struct ebus_dma_info ebus_info; 74 #endif 75 #ifdef SBUS_SUPPORT 76 struct sbus_dma_info sbus_info; 77 #endif 78 }; 79 80 struct snd_cs4231 { 81 spinlock_t lock; /* registers access lock */ 82 void __iomem *port; 83 84 struct cs4231_dma_control p_dma; 85 struct cs4231_dma_control c_dma; 86 87 u32 flags; 88 #define CS4231_FLAG_EBUS 0x00000001 89 #define CS4231_FLAG_PLAYBACK 0x00000002 90 #define CS4231_FLAG_CAPTURE 0x00000004 91 92 struct snd_card *card; 93 struct snd_pcm *pcm; 94 struct snd_pcm_substream *playback_substream; 95 unsigned int p_periods_sent; 96 struct snd_pcm_substream *capture_substream; 97 unsigned int c_periods_sent; 98 struct snd_timer *timer; 99 100 unsigned short mode; 101 #define CS4231_MODE_NONE 0x0000 102 #define CS4231_MODE_PLAY 0x0001 103 #define CS4231_MODE_RECORD 0x0002 104 #define CS4231_MODE_TIMER 0x0004 105 #define CS4231_MODE_OPEN (CS4231_MODE_PLAY | CS4231_MODE_RECORD | \ 106 CS4231_MODE_TIMER) 107 108 unsigned char image[32]; /* registers image */ 109 int mce_bit; 110 int calibrate_mute; 111 struct mutex mce_mutex; /* mutex for mce register */ 112 struct mutex open_mutex; /* mutex for ALSA open/close */ 113 114 struct platform_device *op; 115 unsigned int irq[2]; 116 unsigned int regs_size; 117 struct snd_cs4231 *next; 118 }; 119 120 /* Eventually we can use sound/isa/cs423x/cs4231_lib.c directly, but for 121 * now.... -DaveM 122 */ 123 124 /* IO ports */ 125 #include <sound/cs4231-regs.h> 126 127 /* XXX offsets are different than PC ISA chips... */ 128 #define CS4231U(chip, x) ((chip)->port + ((c_d_c_CS4231##x) << 2)) 129 130 /* SBUS DMA register defines. */ 131 132 #define APCCSR 0x10UL /* APC DMA CSR */ 133 #define APCCVA 0x20UL /* APC Capture DMA Address */ 134 #define APCCC 0x24UL /* APC Capture Count */ 135 #define APCCNVA 0x28UL /* APC Capture DMA Next Address */ 136 #define APCCNC 0x2cUL /* APC Capture Next Count */ 137 #define APCPVA 0x30UL /* APC Play DMA Address */ 138 #define APCPC 0x34UL /* APC Play Count */ 139 #define APCPNVA 0x38UL /* APC Play DMA Next Address */ 140 #define APCPNC 0x3cUL /* APC Play Next Count */ 141 142 /* Defines for SBUS DMA-routines */ 143 144 #define APCVA 0x0UL /* APC DMA Address */ 145 #define APCC 0x4UL /* APC Count */ 146 #define APCNVA 0x8UL /* APC DMA Next Address */ 147 #define APCNC 0xcUL /* APC Next Count */ 148 #define APC_PLAY 0x30UL /* Play registers start at 0x30 */ 149 #define APC_RECORD 0x20UL /* Record registers start at 0x20 */ 150 151 /* APCCSR bits */ 152 153 #define APC_INT_PENDING 0x800000 /* Interrupt Pending */ 154 #define APC_PLAY_INT 0x400000 /* Playback interrupt */ 155 #define APC_CAPT_INT 0x200000 /* Capture interrupt */ 156 #define APC_GENL_INT 0x100000 /* General interrupt */ 157 #define APC_XINT_ENA 0x80000 /* General ext int. enable */ 158 #define APC_XINT_PLAY 0x40000 /* Playback ext intr */ 159 #define APC_XINT_CAPT 0x20000 /* Capture ext intr */ 160 #define APC_XINT_GENL 0x10000 /* Error ext intr */ 161 #define APC_XINT_EMPT 0x8000 /* Pipe empty interrupt (0 write to pva) */ 162 #define APC_XINT_PEMP 0x4000 /* Play pipe empty (pva and pnva not set) */ 163 #define APC_XINT_PNVA 0x2000 /* Playback NVA dirty */ 164 #define APC_XINT_PENA 0x1000 /* play pipe empty Int enable */ 165 #define APC_XINT_COVF 0x800 /* Cap data dropped on floor */ 166 #define APC_XINT_CNVA 0x400 /* Capture NVA dirty */ 167 #define APC_XINT_CEMP 0x200 /* Capture pipe empty (cva and cnva not set) */ 168 #define APC_XINT_CENA 0x100 /* Cap. pipe empty int enable */ 169 #define APC_PPAUSE 0x80 /* Pause the play DMA */ 170 #define APC_CPAUSE 0x40 /* Pause the capture DMA */ 171 #define APC_CDC_RESET 0x20 /* CODEC RESET */ 172 #define APC_PDMA_READY 0x08 /* Play DMA Go */ 173 #define APC_CDMA_READY 0x04 /* Capture DMA Go */ 174 #define APC_CHIP_RESET 0x01 /* Reset the chip */ 175 176 /* EBUS DMA register offsets */ 177 178 #define EBDMA_CSR 0x00UL /* Control/Status */ 179 #define EBDMA_ADDR 0x04UL /* DMA Address */ 180 #define EBDMA_COUNT 0x08UL /* DMA Count */ 181 182 /* 183 * Some variables 184 */ 185 186 static unsigned char freq_bits[14] = { 187 /* 5510 */ 0x00 | CS4231_XTAL2, 188 /* 6620 */ 0x0E | CS4231_XTAL2, 189 /* 8000 */ 0x00 | CS4231_XTAL1, 190 /* 9600 */ 0x0E | CS4231_XTAL1, 191 /* 11025 */ 0x02 | CS4231_XTAL2, 192 /* 16000 */ 0x02 | CS4231_XTAL1, 193 /* 18900 */ 0x04 | CS4231_XTAL2, 194 /* 22050 */ 0x06 | CS4231_XTAL2, 195 /* 27042 */ 0x04 | CS4231_XTAL1, 196 /* 32000 */ 0x06 | CS4231_XTAL1, 197 /* 33075 */ 0x0C | CS4231_XTAL2, 198 /* 37800 */ 0x08 | CS4231_XTAL2, 199 /* 44100 */ 0x0A | CS4231_XTAL2, 200 /* 48000 */ 0x0C | CS4231_XTAL1 201 }; 202 203 static unsigned int rates[14] = { 204 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050, 205 27042, 32000, 33075, 37800, 44100, 48000 206 }; 207 208 static struct snd_pcm_hw_constraint_list hw_constraints_rates = { 209 .count = ARRAY_SIZE(rates), 210 .list = rates, 211 }; 212 213 static int snd_cs4231_xrate(struct snd_pcm_runtime *runtime) 214 { 215 return snd_pcm_hw_constraint_list(runtime, 0, 216 SNDRV_PCM_HW_PARAM_RATE, 217 &hw_constraints_rates); 218 } 219 220 static unsigned char snd_cs4231_original_image[32] = 221 { 222 0x00, /* 00/00 - lic */ 223 0x00, /* 01/01 - ric */ 224 0x9f, /* 02/02 - la1ic */ 225 0x9f, /* 03/03 - ra1ic */ 226 0x9f, /* 04/04 - la2ic */ 227 0x9f, /* 05/05 - ra2ic */ 228 0xbf, /* 06/06 - loc */ 229 0xbf, /* 07/07 - roc */ 230 0x20, /* 08/08 - pdfr */ 231 CS4231_AUTOCALIB, /* 09/09 - ic */ 232 0x00, /* 0a/10 - pc */ 233 0x00, /* 0b/11 - ti */ 234 CS4231_MODE2, /* 0c/12 - mi */ 235 0x00, /* 0d/13 - lbc */ 236 0x00, /* 0e/14 - pbru */ 237 0x00, /* 0f/15 - pbrl */ 238 0x80, /* 10/16 - afei */ 239 0x01, /* 11/17 - afeii */ 240 0x9f, /* 12/18 - llic */ 241 0x9f, /* 13/19 - rlic */ 242 0x00, /* 14/20 - tlb */ 243 0x00, /* 15/21 - thb */ 244 0x00, /* 16/22 - la3mic/reserved */ 245 0x00, /* 17/23 - ra3mic/reserved */ 246 0x00, /* 18/24 - afs */ 247 0x00, /* 19/25 - lamoc/version */ 248 0x00, /* 1a/26 - mioc */ 249 0x00, /* 1b/27 - ramoc/reserved */ 250 0x20, /* 1c/28 - cdfr */ 251 0x00, /* 1d/29 - res4 */ 252 0x00, /* 1e/30 - cbru */ 253 0x00, /* 1f/31 - cbrl */ 254 }; 255 256 static u8 __cs4231_readb(struct snd_cs4231 *cp, void __iomem *reg_addr) 257 { 258 if (cp->flags & CS4231_FLAG_EBUS) 259 return readb(reg_addr); 260 else 261 return sbus_readb(reg_addr); 262 } 263 264 static void __cs4231_writeb(struct snd_cs4231 *cp, u8 val, 265 void __iomem *reg_addr) 266 { 267 if (cp->flags & CS4231_FLAG_EBUS) 268 return writeb(val, reg_addr); 269 else 270 return sbus_writeb(val, reg_addr); 271 } 272 273 /* 274 * Basic I/O functions 275 */ 276 277 static void snd_cs4231_ready(struct snd_cs4231 *chip) 278 { 279 int timeout; 280 281 for (timeout = 250; timeout > 0; timeout--) { 282 int val = __cs4231_readb(chip, CS4231U(chip, REGSEL)); 283 if ((val & CS4231_INIT) == 0) 284 break; 285 udelay(100); 286 } 287 } 288 289 static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg, 290 unsigned char value) 291 { 292 snd_cs4231_ready(chip); 293 #ifdef CONFIG_SND_DEBUG 294 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT) 295 snd_printdd("out: auto calibration time out - reg = 0x%x, " 296 "value = 0x%x\n", 297 reg, value); 298 #endif 299 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231U(chip, REGSEL)); 300 wmb(); 301 __cs4231_writeb(chip, value, CS4231U(chip, REG)); 302 mb(); 303 } 304 305 static inline void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg, 306 unsigned char mask, unsigned char value) 307 { 308 unsigned char tmp = (chip->image[reg] & mask) | value; 309 310 chip->image[reg] = tmp; 311 if (!chip->calibrate_mute) 312 snd_cs4231_dout(chip, reg, tmp); 313 } 314 315 static void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, 316 unsigned char value) 317 { 318 snd_cs4231_dout(chip, reg, value); 319 chip->image[reg] = value; 320 mb(); 321 } 322 323 static unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg) 324 { 325 snd_cs4231_ready(chip); 326 #ifdef CONFIG_SND_DEBUG 327 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT) 328 snd_printdd("in: auto calibration time out - reg = 0x%x\n", 329 reg); 330 #endif 331 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231U(chip, REGSEL)); 332 mb(); 333 return __cs4231_readb(chip, CS4231U(chip, REG)); 334 } 335 336 /* 337 * CS4231 detection / MCE routines 338 */ 339 340 static void snd_cs4231_busy_wait(struct snd_cs4231 *chip) 341 { 342 int timeout; 343 344 /* looks like this sequence is proper for CS4231A chip (GUS MAX) */ 345 for (timeout = 5; timeout > 0; timeout--) 346 __cs4231_readb(chip, CS4231U(chip, REGSEL)); 347 348 /* end of cleanup sequence */ 349 for (timeout = 500; timeout > 0; timeout--) { 350 int val = __cs4231_readb(chip, CS4231U(chip, REGSEL)); 351 if ((val & CS4231_INIT) == 0) 352 break; 353 msleep(1); 354 } 355 } 356 357 static void snd_cs4231_mce_up(struct snd_cs4231 *chip) 358 { 359 unsigned long flags; 360 int timeout; 361 362 spin_lock_irqsave(&chip->lock, flags); 363 snd_cs4231_ready(chip); 364 #ifdef CONFIG_SND_DEBUG 365 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT) 366 snd_printdd("mce_up - auto calibration time out (0)\n"); 367 #endif 368 chip->mce_bit |= CS4231_MCE; 369 timeout = __cs4231_readb(chip, CS4231U(chip, REGSEL)); 370 if (timeout == 0x80) 371 snd_printdd("mce_up [%p]: serious init problem - " 372 "codec still busy\n", 373 chip->port); 374 if (!(timeout & CS4231_MCE)) 375 __cs4231_writeb(chip, chip->mce_bit | (timeout & 0x1f), 376 CS4231U(chip, REGSEL)); 377 spin_unlock_irqrestore(&chip->lock, flags); 378 } 379 380 static void snd_cs4231_mce_down(struct snd_cs4231 *chip) 381 { 382 unsigned long flags, timeout; 383 int reg; 384 385 snd_cs4231_busy_wait(chip); 386 spin_lock_irqsave(&chip->lock, flags); 387 #ifdef CONFIG_SND_DEBUG 388 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT) 389 snd_printdd("mce_down [%p] - auto calibration time out (0)\n", 390 CS4231U(chip, REGSEL)); 391 #endif 392 chip->mce_bit &= ~CS4231_MCE; 393 reg = __cs4231_readb(chip, CS4231U(chip, REGSEL)); 394 __cs4231_writeb(chip, chip->mce_bit | (reg & 0x1f), 395 CS4231U(chip, REGSEL)); 396 if (reg == 0x80) 397 snd_printdd("mce_down [%p]: serious init problem " 398 "- codec still busy\n", chip->port); 399 if ((reg & CS4231_MCE) == 0) { 400 spin_unlock_irqrestore(&chip->lock, flags); 401 return; 402 } 403 404 /* 405 * Wait for auto-calibration (AC) process to finish, i.e. ACI to go low. 406 */ 407 timeout = jiffies + msecs_to_jiffies(250); 408 do { 409 spin_unlock_irqrestore(&chip->lock, flags); 410 msleep(1); 411 spin_lock_irqsave(&chip->lock, flags); 412 reg = snd_cs4231_in(chip, CS4231_TEST_INIT); 413 reg &= CS4231_CALIB_IN_PROGRESS; 414 } while (reg && time_before(jiffies, timeout)); 415 spin_unlock_irqrestore(&chip->lock, flags); 416 417 if (reg) 418 snd_printk(KERN_ERR 419 "mce_down - auto calibration time out (2)\n"); 420 } 421 422 static void snd_cs4231_advance_dma(struct cs4231_dma_control *dma_cont, 423 struct snd_pcm_substream *substream, 424 unsigned int *periods_sent) 425 { 426 struct snd_pcm_runtime *runtime = substream->runtime; 427 428 while (1) { 429 unsigned int period_size = snd_pcm_lib_period_bytes(substream); 430 unsigned int offset = period_size * (*periods_sent); 431 432 if (WARN_ON(period_size >= (1 << 24))) 433 return; 434 435 if (dma_cont->request(dma_cont, 436 runtime->dma_addr + offset, period_size)) 437 return; 438 (*periods_sent) = ((*periods_sent) + 1) % runtime->periods; 439 } 440 } 441 442 static void cs4231_dma_trigger(struct snd_pcm_substream *substream, 443 unsigned int what, int on) 444 { 445 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 446 struct cs4231_dma_control *dma_cont; 447 448 if (what & CS4231_PLAYBACK_ENABLE) { 449 dma_cont = &chip->p_dma; 450 if (on) { 451 dma_cont->prepare(dma_cont, 0); 452 dma_cont->enable(dma_cont, 1); 453 snd_cs4231_advance_dma(dma_cont, 454 chip->playback_substream, 455 &chip->p_periods_sent); 456 } else { 457 dma_cont->enable(dma_cont, 0); 458 } 459 } 460 if (what & CS4231_RECORD_ENABLE) { 461 dma_cont = &chip->c_dma; 462 if (on) { 463 dma_cont->prepare(dma_cont, 1); 464 dma_cont->enable(dma_cont, 1); 465 snd_cs4231_advance_dma(dma_cont, 466 chip->capture_substream, 467 &chip->c_periods_sent); 468 } else { 469 dma_cont->enable(dma_cont, 0); 470 } 471 } 472 } 473 474 static int snd_cs4231_trigger(struct snd_pcm_substream *substream, int cmd) 475 { 476 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 477 int result = 0; 478 479 switch (cmd) { 480 case SNDRV_PCM_TRIGGER_START: 481 case SNDRV_PCM_TRIGGER_STOP: 482 { 483 unsigned int what = 0; 484 struct snd_pcm_substream *s; 485 unsigned long flags; 486 487 snd_pcm_group_for_each_entry(s, substream) { 488 if (s == chip->playback_substream) { 489 what |= CS4231_PLAYBACK_ENABLE; 490 snd_pcm_trigger_done(s, substream); 491 } else if (s == chip->capture_substream) { 492 what |= CS4231_RECORD_ENABLE; 493 snd_pcm_trigger_done(s, substream); 494 } 495 } 496 497 spin_lock_irqsave(&chip->lock, flags); 498 if (cmd == SNDRV_PCM_TRIGGER_START) { 499 cs4231_dma_trigger(substream, what, 1); 500 chip->image[CS4231_IFACE_CTRL] |= what; 501 } else { 502 cs4231_dma_trigger(substream, what, 0); 503 chip->image[CS4231_IFACE_CTRL] &= ~what; 504 } 505 snd_cs4231_out(chip, CS4231_IFACE_CTRL, 506 chip->image[CS4231_IFACE_CTRL]); 507 spin_unlock_irqrestore(&chip->lock, flags); 508 break; 509 } 510 default: 511 result = -EINVAL; 512 break; 513 } 514 515 return result; 516 } 517 518 /* 519 * CODEC I/O 520 */ 521 522 static unsigned char snd_cs4231_get_rate(unsigned int rate) 523 { 524 int i; 525 526 for (i = 0; i < 14; i++) 527 if (rate == rates[i]) 528 return freq_bits[i]; 529 530 return freq_bits[13]; 531 } 532 533 static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip, int format, 534 int channels) 535 { 536 unsigned char rformat; 537 538 rformat = CS4231_LINEAR_8; 539 switch (format) { 540 case SNDRV_PCM_FORMAT_MU_LAW: 541 rformat = CS4231_ULAW_8; 542 break; 543 case SNDRV_PCM_FORMAT_A_LAW: 544 rformat = CS4231_ALAW_8; 545 break; 546 case SNDRV_PCM_FORMAT_S16_LE: 547 rformat = CS4231_LINEAR_16; 548 break; 549 case SNDRV_PCM_FORMAT_S16_BE: 550 rformat = CS4231_LINEAR_16_BIG; 551 break; 552 case SNDRV_PCM_FORMAT_IMA_ADPCM: 553 rformat = CS4231_ADPCM_16; 554 break; 555 } 556 if (channels > 1) 557 rformat |= CS4231_STEREO; 558 return rformat; 559 } 560 561 static void snd_cs4231_calibrate_mute(struct snd_cs4231 *chip, int mute) 562 { 563 unsigned long flags; 564 565 mute = mute ? 1 : 0; 566 spin_lock_irqsave(&chip->lock, flags); 567 if (chip->calibrate_mute == mute) { 568 spin_unlock_irqrestore(&chip->lock, flags); 569 return; 570 } 571 if (!mute) { 572 snd_cs4231_dout(chip, CS4231_LEFT_INPUT, 573 chip->image[CS4231_LEFT_INPUT]); 574 snd_cs4231_dout(chip, CS4231_RIGHT_INPUT, 575 chip->image[CS4231_RIGHT_INPUT]); 576 snd_cs4231_dout(chip, CS4231_LOOPBACK, 577 chip->image[CS4231_LOOPBACK]); 578 } 579 snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT, 580 mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]); 581 snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT, 582 mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]); 583 snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT, 584 mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]); 585 snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT, 586 mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]); 587 snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT, 588 mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]); 589 snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT, 590 mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]); 591 snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN, 592 mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]); 593 snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN, 594 mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]); 595 snd_cs4231_dout(chip, CS4231_MONO_CTRL, 596 mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]); 597 chip->calibrate_mute = mute; 598 spin_unlock_irqrestore(&chip->lock, flags); 599 } 600 601 static void snd_cs4231_playback_format(struct snd_cs4231 *chip, 602 struct snd_pcm_hw_params *params, 603 unsigned char pdfr) 604 { 605 unsigned long flags; 606 607 mutex_lock(&chip->mce_mutex); 608 snd_cs4231_calibrate_mute(chip, 1); 609 610 snd_cs4231_mce_up(chip); 611 612 spin_lock_irqsave(&chip->lock, flags); 613 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, 614 (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ? 615 (pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) : 616 pdfr); 617 spin_unlock_irqrestore(&chip->lock, flags); 618 619 snd_cs4231_mce_down(chip); 620 621 snd_cs4231_calibrate_mute(chip, 0); 622 mutex_unlock(&chip->mce_mutex); 623 } 624 625 static void snd_cs4231_capture_format(struct snd_cs4231 *chip, 626 struct snd_pcm_hw_params *params, 627 unsigned char cdfr) 628 { 629 unsigned long flags; 630 631 mutex_lock(&chip->mce_mutex); 632 snd_cs4231_calibrate_mute(chip, 1); 633 634 snd_cs4231_mce_up(chip); 635 636 spin_lock_irqsave(&chip->lock, flags); 637 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) { 638 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, 639 ((chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) | 640 (cdfr & 0x0f)); 641 spin_unlock_irqrestore(&chip->lock, flags); 642 snd_cs4231_mce_down(chip); 643 snd_cs4231_mce_up(chip); 644 spin_lock_irqsave(&chip->lock, flags); 645 } 646 snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr); 647 spin_unlock_irqrestore(&chip->lock, flags); 648 649 snd_cs4231_mce_down(chip); 650 651 snd_cs4231_calibrate_mute(chip, 0); 652 mutex_unlock(&chip->mce_mutex); 653 } 654 655 /* 656 * Timer interface 657 */ 658 659 static unsigned long snd_cs4231_timer_resolution(struct snd_timer *timer) 660 { 661 struct snd_cs4231 *chip = snd_timer_chip(timer); 662 663 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920; 664 } 665 666 static int snd_cs4231_timer_start(struct snd_timer *timer) 667 { 668 unsigned long flags; 669 unsigned int ticks; 670 struct snd_cs4231 *chip = snd_timer_chip(timer); 671 672 spin_lock_irqsave(&chip->lock, flags); 673 ticks = timer->sticks; 674 if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 || 675 (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] || 676 (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) { 677 snd_cs4231_out(chip, CS4231_TIMER_HIGH, 678 chip->image[CS4231_TIMER_HIGH] = 679 (unsigned char) (ticks >> 8)); 680 snd_cs4231_out(chip, CS4231_TIMER_LOW, 681 chip->image[CS4231_TIMER_LOW] = 682 (unsigned char) ticks); 683 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, 684 chip->image[CS4231_ALT_FEATURE_1] | 685 CS4231_TIMER_ENABLE); 686 } 687 spin_unlock_irqrestore(&chip->lock, flags); 688 689 return 0; 690 } 691 692 static int snd_cs4231_timer_stop(struct snd_timer *timer) 693 { 694 unsigned long flags; 695 struct snd_cs4231 *chip = snd_timer_chip(timer); 696 697 spin_lock_irqsave(&chip->lock, flags); 698 chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE; 699 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, 700 chip->image[CS4231_ALT_FEATURE_1]); 701 spin_unlock_irqrestore(&chip->lock, flags); 702 703 return 0; 704 } 705 706 static void snd_cs4231_init(struct snd_cs4231 *chip) 707 { 708 unsigned long flags; 709 710 snd_cs4231_mce_down(chip); 711 712 #ifdef SNDRV_DEBUG_MCE 713 snd_printdd("init: (1)\n"); 714 #endif 715 snd_cs4231_mce_up(chip); 716 spin_lock_irqsave(&chip->lock, flags); 717 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | 718 CS4231_PLAYBACK_PIO | 719 CS4231_RECORD_ENABLE | 720 CS4231_RECORD_PIO | 721 CS4231_CALIB_MODE); 722 chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB; 723 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]); 724 spin_unlock_irqrestore(&chip->lock, flags); 725 snd_cs4231_mce_down(chip); 726 727 #ifdef SNDRV_DEBUG_MCE 728 snd_printdd("init: (2)\n"); 729 #endif 730 731 snd_cs4231_mce_up(chip); 732 spin_lock_irqsave(&chip->lock, flags); 733 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1, 734 chip->image[CS4231_ALT_FEATURE_1]); 735 spin_unlock_irqrestore(&chip->lock, flags); 736 snd_cs4231_mce_down(chip); 737 738 #ifdef SNDRV_DEBUG_MCE 739 snd_printdd("init: (3) - afei = 0x%x\n", 740 chip->image[CS4231_ALT_FEATURE_1]); 741 #endif 742 743 spin_lock_irqsave(&chip->lock, flags); 744 snd_cs4231_out(chip, CS4231_ALT_FEATURE_2, 745 chip->image[CS4231_ALT_FEATURE_2]); 746 spin_unlock_irqrestore(&chip->lock, flags); 747 748 snd_cs4231_mce_up(chip); 749 spin_lock_irqsave(&chip->lock, flags); 750 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, 751 chip->image[CS4231_PLAYBK_FORMAT]); 752 spin_unlock_irqrestore(&chip->lock, flags); 753 snd_cs4231_mce_down(chip); 754 755 #ifdef SNDRV_DEBUG_MCE 756 snd_printdd("init: (4)\n"); 757 #endif 758 759 snd_cs4231_mce_up(chip); 760 spin_lock_irqsave(&chip->lock, flags); 761 snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]); 762 spin_unlock_irqrestore(&chip->lock, flags); 763 snd_cs4231_mce_down(chip); 764 765 #ifdef SNDRV_DEBUG_MCE 766 snd_printdd("init: (5)\n"); 767 #endif 768 } 769 770 static int snd_cs4231_open(struct snd_cs4231 *chip, unsigned int mode) 771 { 772 unsigned long flags; 773 774 mutex_lock(&chip->open_mutex); 775 if ((chip->mode & mode)) { 776 mutex_unlock(&chip->open_mutex); 777 return -EAGAIN; 778 } 779 if (chip->mode & CS4231_MODE_OPEN) { 780 chip->mode |= mode; 781 mutex_unlock(&chip->open_mutex); 782 return 0; 783 } 784 /* ok. now enable and ack CODEC IRQ */ 785 spin_lock_irqsave(&chip->lock, flags); 786 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ | 787 CS4231_RECORD_IRQ | 788 CS4231_TIMER_IRQ); 789 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); 790 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */ 791 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */ 792 793 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ | 794 CS4231_RECORD_IRQ | 795 CS4231_TIMER_IRQ); 796 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); 797 798 spin_unlock_irqrestore(&chip->lock, flags); 799 800 chip->mode = mode; 801 mutex_unlock(&chip->open_mutex); 802 return 0; 803 } 804 805 static void snd_cs4231_close(struct snd_cs4231 *chip, unsigned int mode) 806 { 807 unsigned long flags; 808 809 mutex_lock(&chip->open_mutex); 810 chip->mode &= ~mode; 811 if (chip->mode & CS4231_MODE_OPEN) { 812 mutex_unlock(&chip->open_mutex); 813 return; 814 } 815 snd_cs4231_calibrate_mute(chip, 1); 816 817 /* disable IRQ */ 818 spin_lock_irqsave(&chip->lock, flags); 819 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); 820 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */ 821 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */ 822 823 /* now disable record & playback */ 824 825 if (chip->image[CS4231_IFACE_CTRL] & 826 (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO | 827 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) { 828 spin_unlock_irqrestore(&chip->lock, flags); 829 snd_cs4231_mce_up(chip); 830 spin_lock_irqsave(&chip->lock, flags); 831 chip->image[CS4231_IFACE_CTRL] &= 832 ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO | 833 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO); 834 snd_cs4231_out(chip, CS4231_IFACE_CTRL, 835 chip->image[CS4231_IFACE_CTRL]); 836 spin_unlock_irqrestore(&chip->lock, flags); 837 snd_cs4231_mce_down(chip); 838 spin_lock_irqsave(&chip->lock, flags); 839 } 840 841 /* clear IRQ again */ 842 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0); 843 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */ 844 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */ 845 spin_unlock_irqrestore(&chip->lock, flags); 846 847 snd_cs4231_calibrate_mute(chip, 0); 848 849 chip->mode = 0; 850 mutex_unlock(&chip->open_mutex); 851 } 852 853 /* 854 * timer open/close 855 */ 856 857 static int snd_cs4231_timer_open(struct snd_timer *timer) 858 { 859 struct snd_cs4231 *chip = snd_timer_chip(timer); 860 snd_cs4231_open(chip, CS4231_MODE_TIMER); 861 return 0; 862 } 863 864 static int snd_cs4231_timer_close(struct snd_timer *timer) 865 { 866 struct snd_cs4231 *chip = snd_timer_chip(timer); 867 snd_cs4231_close(chip, CS4231_MODE_TIMER); 868 return 0; 869 } 870 871 static struct snd_timer_hardware snd_cs4231_timer_table = { 872 .flags = SNDRV_TIMER_HW_AUTO, 873 .resolution = 9945, 874 .ticks = 65535, 875 .open = snd_cs4231_timer_open, 876 .close = snd_cs4231_timer_close, 877 .c_resolution = snd_cs4231_timer_resolution, 878 .start = snd_cs4231_timer_start, 879 .stop = snd_cs4231_timer_stop, 880 }; 881 882 /* 883 * ok.. exported functions.. 884 */ 885 886 static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream, 887 struct snd_pcm_hw_params *hw_params) 888 { 889 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 890 unsigned char new_pdfr; 891 int err; 892 893 err = snd_pcm_lib_malloc_pages(substream, 894 params_buffer_bytes(hw_params)); 895 if (err < 0) 896 return err; 897 new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params), 898 params_channels(hw_params)) | 899 snd_cs4231_get_rate(params_rate(hw_params)); 900 snd_cs4231_playback_format(chip, hw_params, new_pdfr); 901 902 return 0; 903 } 904 905 static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream) 906 { 907 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 908 struct snd_pcm_runtime *runtime = substream->runtime; 909 unsigned long flags; 910 int ret = 0; 911 912 spin_lock_irqsave(&chip->lock, flags); 913 914 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | 915 CS4231_PLAYBACK_PIO); 916 917 if (WARN_ON(runtime->period_size > 0xffff + 1)) { 918 ret = -EINVAL; 919 goto out; 920 } 921 922 chip->p_periods_sent = 0; 923 924 out: 925 spin_unlock_irqrestore(&chip->lock, flags); 926 927 return ret; 928 } 929 930 static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream, 931 struct snd_pcm_hw_params *hw_params) 932 { 933 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 934 unsigned char new_cdfr; 935 int err; 936 937 err = snd_pcm_lib_malloc_pages(substream, 938 params_buffer_bytes(hw_params)); 939 if (err < 0) 940 return err; 941 new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params), 942 params_channels(hw_params)) | 943 snd_cs4231_get_rate(params_rate(hw_params)); 944 snd_cs4231_capture_format(chip, hw_params, new_cdfr); 945 946 return 0; 947 } 948 949 static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream) 950 { 951 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 952 unsigned long flags; 953 954 spin_lock_irqsave(&chip->lock, flags); 955 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | 956 CS4231_RECORD_PIO); 957 958 959 chip->c_periods_sent = 0; 960 spin_unlock_irqrestore(&chip->lock, flags); 961 962 return 0; 963 } 964 965 static void snd_cs4231_overrange(struct snd_cs4231 *chip) 966 { 967 unsigned long flags; 968 unsigned char res; 969 970 spin_lock_irqsave(&chip->lock, flags); 971 res = snd_cs4231_in(chip, CS4231_TEST_INIT); 972 spin_unlock_irqrestore(&chip->lock, flags); 973 974 /* detect overrange only above 0dB; may be user selectable? */ 975 if (res & (0x08 | 0x02)) 976 chip->capture_substream->runtime->overrange++; 977 } 978 979 static void snd_cs4231_play_callback(struct snd_cs4231 *chip) 980 { 981 if (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) { 982 snd_pcm_period_elapsed(chip->playback_substream); 983 snd_cs4231_advance_dma(&chip->p_dma, chip->playback_substream, 984 &chip->p_periods_sent); 985 } 986 } 987 988 static void snd_cs4231_capture_callback(struct snd_cs4231 *chip) 989 { 990 if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) { 991 snd_pcm_period_elapsed(chip->capture_substream); 992 snd_cs4231_advance_dma(&chip->c_dma, chip->capture_substream, 993 &chip->c_periods_sent); 994 } 995 } 996 997 static snd_pcm_uframes_t snd_cs4231_playback_pointer( 998 struct snd_pcm_substream *substream) 999 { 1000 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 1001 struct cs4231_dma_control *dma_cont = &chip->p_dma; 1002 size_t ptr; 1003 1004 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) 1005 return 0; 1006 ptr = dma_cont->address(dma_cont); 1007 if (ptr != 0) 1008 ptr -= substream->runtime->dma_addr; 1009 1010 return bytes_to_frames(substream->runtime, ptr); 1011 } 1012 1013 static snd_pcm_uframes_t snd_cs4231_capture_pointer( 1014 struct snd_pcm_substream *substream) 1015 { 1016 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 1017 struct cs4231_dma_control *dma_cont = &chip->c_dma; 1018 size_t ptr; 1019 1020 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE)) 1021 return 0; 1022 ptr = dma_cont->address(dma_cont); 1023 if (ptr != 0) 1024 ptr -= substream->runtime->dma_addr; 1025 1026 return bytes_to_frames(substream->runtime, ptr); 1027 } 1028 1029 static int snd_cs4231_probe(struct snd_cs4231 *chip) 1030 { 1031 unsigned long flags; 1032 int i; 1033 int id = 0; 1034 int vers = 0; 1035 unsigned char *ptr; 1036 1037 for (i = 0; i < 50; i++) { 1038 mb(); 1039 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT) 1040 msleep(2); 1041 else { 1042 spin_lock_irqsave(&chip->lock, flags); 1043 snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2); 1044 id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f; 1045 vers = snd_cs4231_in(chip, CS4231_VERSION); 1046 spin_unlock_irqrestore(&chip->lock, flags); 1047 if (id == 0x0a) 1048 break; /* this is valid value */ 1049 } 1050 } 1051 snd_printdd("cs4231: port = %p, id = 0x%x\n", chip->port, id); 1052 if (id != 0x0a) 1053 return -ENODEV; /* no valid device found */ 1054 1055 spin_lock_irqsave(&chip->lock, flags); 1056 1057 /* clear any pendings IRQ */ 1058 __cs4231_readb(chip, CS4231U(chip, STATUS)); 1059 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); 1060 mb(); 1061 1062 spin_unlock_irqrestore(&chip->lock, flags); 1063 1064 chip->image[CS4231_MISC_INFO] = CS4231_MODE2; 1065 chip->image[CS4231_IFACE_CTRL] = 1066 chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA; 1067 chip->image[CS4231_ALT_FEATURE_1] = 0x80; 1068 chip->image[CS4231_ALT_FEATURE_2] = 0x01; 1069 if (vers & 0x20) 1070 chip->image[CS4231_ALT_FEATURE_2] |= 0x02; 1071 1072 ptr = (unsigned char *) &chip->image; 1073 1074 snd_cs4231_mce_down(chip); 1075 1076 spin_lock_irqsave(&chip->lock, flags); 1077 1078 for (i = 0; i < 32; i++) /* ok.. fill all CS4231 registers */ 1079 snd_cs4231_out(chip, i, *ptr++); 1080 1081 spin_unlock_irqrestore(&chip->lock, flags); 1082 1083 snd_cs4231_mce_up(chip); 1084 1085 snd_cs4231_mce_down(chip); 1086 1087 mdelay(2); 1088 1089 return 0; /* all things are ok.. */ 1090 } 1091 1092 static struct snd_pcm_hardware snd_cs4231_playback = { 1093 .info = SNDRV_PCM_INFO_MMAP | 1094 SNDRV_PCM_INFO_INTERLEAVED | 1095 SNDRV_PCM_INFO_MMAP_VALID | 1096 SNDRV_PCM_INFO_SYNC_START, 1097 .formats = SNDRV_PCM_FMTBIT_MU_LAW | 1098 SNDRV_PCM_FMTBIT_A_LAW | 1099 SNDRV_PCM_FMTBIT_IMA_ADPCM | 1100 SNDRV_PCM_FMTBIT_U8 | 1101 SNDRV_PCM_FMTBIT_S16_LE | 1102 SNDRV_PCM_FMTBIT_S16_BE, 1103 .rates = SNDRV_PCM_RATE_KNOT | 1104 SNDRV_PCM_RATE_8000_48000, 1105 .rate_min = 5510, 1106 .rate_max = 48000, 1107 .channels_min = 1, 1108 .channels_max = 2, 1109 .buffer_bytes_max = 32 * 1024, 1110 .period_bytes_min = 64, 1111 .period_bytes_max = 32 * 1024, 1112 .periods_min = 1, 1113 .periods_max = 1024, 1114 }; 1115 1116 static struct snd_pcm_hardware snd_cs4231_capture = { 1117 .info = SNDRV_PCM_INFO_MMAP | 1118 SNDRV_PCM_INFO_INTERLEAVED | 1119 SNDRV_PCM_INFO_MMAP_VALID | 1120 SNDRV_PCM_INFO_SYNC_START, 1121 .formats = SNDRV_PCM_FMTBIT_MU_LAW | 1122 SNDRV_PCM_FMTBIT_A_LAW | 1123 SNDRV_PCM_FMTBIT_IMA_ADPCM | 1124 SNDRV_PCM_FMTBIT_U8 | 1125 SNDRV_PCM_FMTBIT_S16_LE | 1126 SNDRV_PCM_FMTBIT_S16_BE, 1127 .rates = SNDRV_PCM_RATE_KNOT | 1128 SNDRV_PCM_RATE_8000_48000, 1129 .rate_min = 5510, 1130 .rate_max = 48000, 1131 .channels_min = 1, 1132 .channels_max = 2, 1133 .buffer_bytes_max = 32 * 1024, 1134 .period_bytes_min = 64, 1135 .period_bytes_max = 32 * 1024, 1136 .periods_min = 1, 1137 .periods_max = 1024, 1138 }; 1139 1140 static int snd_cs4231_playback_open(struct snd_pcm_substream *substream) 1141 { 1142 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 1143 struct snd_pcm_runtime *runtime = substream->runtime; 1144 int err; 1145 1146 runtime->hw = snd_cs4231_playback; 1147 1148 err = snd_cs4231_open(chip, CS4231_MODE_PLAY); 1149 if (err < 0) { 1150 snd_free_pages(runtime->dma_area, runtime->dma_bytes); 1151 return err; 1152 } 1153 chip->playback_substream = substream; 1154 chip->p_periods_sent = 0; 1155 snd_pcm_set_sync(substream); 1156 snd_cs4231_xrate(runtime); 1157 1158 return 0; 1159 } 1160 1161 static int snd_cs4231_capture_open(struct snd_pcm_substream *substream) 1162 { 1163 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 1164 struct snd_pcm_runtime *runtime = substream->runtime; 1165 int err; 1166 1167 runtime->hw = snd_cs4231_capture; 1168 1169 err = snd_cs4231_open(chip, CS4231_MODE_RECORD); 1170 if (err < 0) { 1171 snd_free_pages(runtime->dma_area, runtime->dma_bytes); 1172 return err; 1173 } 1174 chip->capture_substream = substream; 1175 chip->c_periods_sent = 0; 1176 snd_pcm_set_sync(substream); 1177 snd_cs4231_xrate(runtime); 1178 1179 return 0; 1180 } 1181 1182 static int snd_cs4231_playback_close(struct snd_pcm_substream *substream) 1183 { 1184 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 1185 1186 snd_cs4231_close(chip, CS4231_MODE_PLAY); 1187 chip->playback_substream = NULL; 1188 1189 return 0; 1190 } 1191 1192 static int snd_cs4231_capture_close(struct snd_pcm_substream *substream) 1193 { 1194 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream); 1195 1196 snd_cs4231_close(chip, CS4231_MODE_RECORD); 1197 chip->capture_substream = NULL; 1198 1199 return 0; 1200 } 1201 1202 /* XXX We can do some power-management, in particular on EBUS using 1203 * XXX the audio AUXIO register... 1204 */ 1205 1206 static struct snd_pcm_ops snd_cs4231_playback_ops = { 1207 .open = snd_cs4231_playback_open, 1208 .close = snd_cs4231_playback_close, 1209 .ioctl = snd_pcm_lib_ioctl, 1210 .hw_params = snd_cs4231_playback_hw_params, 1211 .hw_free = snd_pcm_lib_free_pages, 1212 .prepare = snd_cs4231_playback_prepare, 1213 .trigger = snd_cs4231_trigger, 1214 .pointer = snd_cs4231_playback_pointer, 1215 }; 1216 1217 static struct snd_pcm_ops snd_cs4231_capture_ops = { 1218 .open = snd_cs4231_capture_open, 1219 .close = snd_cs4231_capture_close, 1220 .ioctl = snd_pcm_lib_ioctl, 1221 .hw_params = snd_cs4231_capture_hw_params, 1222 .hw_free = snd_pcm_lib_free_pages, 1223 .prepare = snd_cs4231_capture_prepare, 1224 .trigger = snd_cs4231_trigger, 1225 .pointer = snd_cs4231_capture_pointer, 1226 }; 1227 1228 static int snd_cs4231_pcm(struct snd_card *card) 1229 { 1230 struct snd_cs4231 *chip = card->private_data; 1231 struct snd_pcm *pcm; 1232 int err; 1233 1234 err = snd_pcm_new(card, "CS4231", 0, 1, 1, &pcm); 1235 if (err < 0) 1236 return err; 1237 1238 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 1239 &snd_cs4231_playback_ops); 1240 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 1241 &snd_cs4231_capture_ops); 1242 1243 /* global setup */ 1244 pcm->private_data = chip; 1245 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; 1246 strcpy(pcm->name, "CS4231"); 1247 1248 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 1249 &chip->op->dev, 1250 64 * 1024, 128 * 1024); 1251 1252 chip->pcm = pcm; 1253 1254 return 0; 1255 } 1256 1257 static int snd_cs4231_timer(struct snd_card *card) 1258 { 1259 struct snd_cs4231 *chip = card->private_data; 1260 struct snd_timer *timer; 1261 struct snd_timer_id tid; 1262 int err; 1263 1264 /* Timer initialization */ 1265 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 1266 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 1267 tid.card = card->number; 1268 tid.device = 0; 1269 tid.subdevice = 0; 1270 err = snd_timer_new(card, "CS4231", &tid, &timer); 1271 if (err < 0) 1272 return err; 1273 strcpy(timer->name, "CS4231"); 1274 timer->private_data = chip; 1275 timer->hw = snd_cs4231_timer_table; 1276 chip->timer = timer; 1277 1278 return 0; 1279 } 1280 1281 /* 1282 * MIXER part 1283 */ 1284 1285 static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol, 1286 struct snd_ctl_elem_info *uinfo) 1287 { 1288 static char *texts[4] = { 1289 "Line", "CD", "Mic", "Mix" 1290 }; 1291 1292 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 1293 uinfo->count = 2; 1294 uinfo->value.enumerated.items = 4; 1295 if (uinfo->value.enumerated.item > 3) 1296 uinfo->value.enumerated.item = 3; 1297 strcpy(uinfo->value.enumerated.name, 1298 texts[uinfo->value.enumerated.item]); 1299 1300 return 0; 1301 } 1302 1303 static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol, 1304 struct snd_ctl_elem_value *ucontrol) 1305 { 1306 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1307 unsigned long flags; 1308 1309 spin_lock_irqsave(&chip->lock, flags); 1310 ucontrol->value.enumerated.item[0] = 1311 (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6; 1312 ucontrol->value.enumerated.item[1] = 1313 (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6; 1314 spin_unlock_irqrestore(&chip->lock, flags); 1315 1316 return 0; 1317 } 1318 1319 static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol, 1320 struct snd_ctl_elem_value *ucontrol) 1321 { 1322 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1323 unsigned long flags; 1324 unsigned short left, right; 1325 int change; 1326 1327 if (ucontrol->value.enumerated.item[0] > 3 || 1328 ucontrol->value.enumerated.item[1] > 3) 1329 return -EINVAL; 1330 left = ucontrol->value.enumerated.item[0] << 6; 1331 right = ucontrol->value.enumerated.item[1] << 6; 1332 1333 spin_lock_irqsave(&chip->lock, flags); 1334 1335 left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left; 1336 right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right; 1337 change = left != chip->image[CS4231_LEFT_INPUT] || 1338 right != chip->image[CS4231_RIGHT_INPUT]; 1339 snd_cs4231_out(chip, CS4231_LEFT_INPUT, left); 1340 snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right); 1341 1342 spin_unlock_irqrestore(&chip->lock, flags); 1343 1344 return change; 1345 } 1346 1347 static int snd_cs4231_info_single(struct snd_kcontrol *kcontrol, 1348 struct snd_ctl_elem_info *uinfo) 1349 { 1350 int mask = (kcontrol->private_value >> 16) & 0xff; 1351 1352 uinfo->type = (mask == 1) ? 1353 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 1354 uinfo->count = 1; 1355 uinfo->value.integer.min = 0; 1356 uinfo->value.integer.max = mask; 1357 1358 return 0; 1359 } 1360 1361 static int snd_cs4231_get_single(struct snd_kcontrol *kcontrol, 1362 struct snd_ctl_elem_value *ucontrol) 1363 { 1364 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1365 unsigned long flags; 1366 int reg = kcontrol->private_value & 0xff; 1367 int shift = (kcontrol->private_value >> 8) & 0xff; 1368 int mask = (kcontrol->private_value >> 16) & 0xff; 1369 int invert = (kcontrol->private_value >> 24) & 0xff; 1370 1371 spin_lock_irqsave(&chip->lock, flags); 1372 1373 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask; 1374 1375 spin_unlock_irqrestore(&chip->lock, flags); 1376 1377 if (invert) 1378 ucontrol->value.integer.value[0] = 1379 (mask - ucontrol->value.integer.value[0]); 1380 1381 return 0; 1382 } 1383 1384 static int snd_cs4231_put_single(struct snd_kcontrol *kcontrol, 1385 struct snd_ctl_elem_value *ucontrol) 1386 { 1387 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1388 unsigned long flags; 1389 int reg = kcontrol->private_value & 0xff; 1390 int shift = (kcontrol->private_value >> 8) & 0xff; 1391 int mask = (kcontrol->private_value >> 16) & 0xff; 1392 int invert = (kcontrol->private_value >> 24) & 0xff; 1393 int change; 1394 unsigned short val; 1395 1396 val = (ucontrol->value.integer.value[0] & mask); 1397 if (invert) 1398 val = mask - val; 1399 val <<= shift; 1400 1401 spin_lock_irqsave(&chip->lock, flags); 1402 1403 val = (chip->image[reg] & ~(mask << shift)) | val; 1404 change = val != chip->image[reg]; 1405 snd_cs4231_out(chip, reg, val); 1406 1407 spin_unlock_irqrestore(&chip->lock, flags); 1408 1409 return change; 1410 } 1411 1412 static int snd_cs4231_info_double(struct snd_kcontrol *kcontrol, 1413 struct snd_ctl_elem_info *uinfo) 1414 { 1415 int mask = (kcontrol->private_value >> 24) & 0xff; 1416 1417 uinfo->type = mask == 1 ? 1418 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 1419 uinfo->count = 2; 1420 uinfo->value.integer.min = 0; 1421 uinfo->value.integer.max = mask; 1422 1423 return 0; 1424 } 1425 1426 static int snd_cs4231_get_double(struct snd_kcontrol *kcontrol, 1427 struct snd_ctl_elem_value *ucontrol) 1428 { 1429 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1430 unsigned long flags; 1431 int left_reg = kcontrol->private_value & 0xff; 1432 int right_reg = (kcontrol->private_value >> 8) & 0xff; 1433 int shift_left = (kcontrol->private_value >> 16) & 0x07; 1434 int shift_right = (kcontrol->private_value >> 19) & 0x07; 1435 int mask = (kcontrol->private_value >> 24) & 0xff; 1436 int invert = (kcontrol->private_value >> 22) & 1; 1437 1438 spin_lock_irqsave(&chip->lock, flags); 1439 1440 ucontrol->value.integer.value[0] = 1441 (chip->image[left_reg] >> shift_left) & mask; 1442 ucontrol->value.integer.value[1] = 1443 (chip->image[right_reg] >> shift_right) & mask; 1444 1445 spin_unlock_irqrestore(&chip->lock, flags); 1446 1447 if (invert) { 1448 ucontrol->value.integer.value[0] = 1449 (mask - ucontrol->value.integer.value[0]); 1450 ucontrol->value.integer.value[1] = 1451 (mask - ucontrol->value.integer.value[1]); 1452 } 1453 1454 return 0; 1455 } 1456 1457 static int snd_cs4231_put_double(struct snd_kcontrol *kcontrol, 1458 struct snd_ctl_elem_value *ucontrol) 1459 { 1460 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1461 unsigned long flags; 1462 int left_reg = kcontrol->private_value & 0xff; 1463 int right_reg = (kcontrol->private_value >> 8) & 0xff; 1464 int shift_left = (kcontrol->private_value >> 16) & 0x07; 1465 int shift_right = (kcontrol->private_value >> 19) & 0x07; 1466 int mask = (kcontrol->private_value >> 24) & 0xff; 1467 int invert = (kcontrol->private_value >> 22) & 1; 1468 int change; 1469 unsigned short val1, val2; 1470 1471 val1 = ucontrol->value.integer.value[0] & mask; 1472 val2 = ucontrol->value.integer.value[1] & mask; 1473 if (invert) { 1474 val1 = mask - val1; 1475 val2 = mask - val2; 1476 } 1477 val1 <<= shift_left; 1478 val2 <<= shift_right; 1479 1480 spin_lock_irqsave(&chip->lock, flags); 1481 1482 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1; 1483 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2; 1484 change = val1 != chip->image[left_reg]; 1485 change |= val2 != chip->image[right_reg]; 1486 snd_cs4231_out(chip, left_reg, val1); 1487 snd_cs4231_out(chip, right_reg, val2); 1488 1489 spin_unlock_irqrestore(&chip->lock, flags); 1490 1491 return change; 1492 } 1493 1494 #define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \ 1495 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \ 1496 .info = snd_cs4231_info_single, \ 1497 .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \ 1498 .private_value = (reg) | ((shift) << 8) | ((mask) << 16) | ((invert) << 24) } 1499 1500 #define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, \ 1501 shift_right, mask, invert) \ 1502 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \ 1503 .info = snd_cs4231_info_double, \ 1504 .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \ 1505 .private_value = (left_reg) | ((right_reg) << 8) | ((shift_left) << 16) | \ 1506 ((shift_right) << 19) | ((mask) << 24) | ((invert) << 22) } 1507 1508 static struct snd_kcontrol_new snd_cs4231_controls[] = { 1509 CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, 1510 CS4231_RIGHT_OUTPUT, 7, 7, 1, 1), 1511 CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, 1512 CS4231_RIGHT_OUTPUT, 0, 0, 63, 1), 1513 CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, 1514 CS4231_RIGHT_LINE_IN, 7, 7, 1, 1), 1515 CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN, 1516 CS4231_RIGHT_LINE_IN, 0, 0, 31, 1), 1517 CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, 1518 CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1), 1519 CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT, 1520 CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1), 1521 CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, 1522 CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1), 1523 CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT, 1524 CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1), 1525 CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1), 1526 CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1), 1527 CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1), 1528 CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0), 1529 CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 1530 15, 0), 1531 { 1532 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1533 .name = "Capture Source", 1534 .info = snd_cs4231_info_mux, 1535 .get = snd_cs4231_get_mux, 1536 .put = snd_cs4231_put_mux, 1537 }, 1538 CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1539 1, 0), 1540 CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0), 1541 CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1), 1542 /* SPARC specific uses of XCTL{0,1} general purpose outputs. */ 1543 CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1), 1544 CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1) 1545 }; 1546 1547 static int snd_cs4231_mixer(struct snd_card *card) 1548 { 1549 struct snd_cs4231 *chip = card->private_data; 1550 int err, idx; 1551 1552 if (snd_BUG_ON(!chip || !chip->pcm)) 1553 return -EINVAL; 1554 1555 strcpy(card->mixername, chip->pcm->name); 1556 1557 for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) { 1558 err = snd_ctl_add(card, 1559 snd_ctl_new1(&snd_cs4231_controls[idx], chip)); 1560 if (err < 0) 1561 return err; 1562 } 1563 return 0; 1564 } 1565 1566 static int dev; 1567 1568 static int cs4231_attach_begin(struct platform_device *op, 1569 struct snd_card **rcard) 1570 { 1571 struct snd_card *card; 1572 struct snd_cs4231 *chip; 1573 int err; 1574 1575 *rcard = NULL; 1576 1577 if (dev >= SNDRV_CARDS) 1578 return -ENODEV; 1579 1580 if (!enable[dev]) { 1581 dev++; 1582 return -ENOENT; 1583 } 1584 1585 err = snd_card_new(&op->dev, index[dev], id[dev], THIS_MODULE, 1586 sizeof(struct snd_cs4231), &card); 1587 if (err < 0) 1588 return err; 1589 1590 strcpy(card->driver, "CS4231"); 1591 strcpy(card->shortname, "Sun CS4231"); 1592 1593 chip = card->private_data; 1594 chip->card = card; 1595 1596 *rcard = card; 1597 return 0; 1598 } 1599 1600 static int cs4231_attach_finish(struct snd_card *card) 1601 { 1602 struct snd_cs4231 *chip = card->private_data; 1603 int err; 1604 1605 err = snd_cs4231_pcm(card); 1606 if (err < 0) 1607 goto out_err; 1608 1609 err = snd_cs4231_mixer(card); 1610 if (err < 0) 1611 goto out_err; 1612 1613 err = snd_cs4231_timer(card); 1614 if (err < 0) 1615 goto out_err; 1616 1617 err = snd_card_register(card); 1618 if (err < 0) 1619 goto out_err; 1620 1621 dev_set_drvdata(&chip->op->dev, chip); 1622 1623 dev++; 1624 return 0; 1625 1626 out_err: 1627 snd_card_free(card); 1628 return err; 1629 } 1630 1631 #ifdef SBUS_SUPPORT 1632 1633 static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id) 1634 { 1635 unsigned long flags; 1636 unsigned char status; 1637 u32 csr; 1638 struct snd_cs4231 *chip = dev_id; 1639 1640 /*This is IRQ is not raised by the cs4231*/ 1641 if (!(__cs4231_readb(chip, CS4231U(chip, STATUS)) & CS4231_GLOBALIRQ)) 1642 return IRQ_NONE; 1643 1644 /* ACK the APC interrupt. */ 1645 csr = sbus_readl(chip->port + APCCSR); 1646 1647 sbus_writel(csr, chip->port + APCCSR); 1648 1649 if ((csr & APC_PDMA_READY) && 1650 (csr & APC_PLAY_INT) && 1651 (csr & APC_XINT_PNVA) && 1652 !(csr & APC_XINT_EMPT)) 1653 snd_cs4231_play_callback(chip); 1654 1655 if ((csr & APC_CDMA_READY) && 1656 (csr & APC_CAPT_INT) && 1657 (csr & APC_XINT_CNVA) && 1658 !(csr & APC_XINT_EMPT)) 1659 snd_cs4231_capture_callback(chip); 1660 1661 status = snd_cs4231_in(chip, CS4231_IRQ_STATUS); 1662 1663 if (status & CS4231_TIMER_IRQ) { 1664 if (chip->timer) 1665 snd_timer_interrupt(chip->timer, chip->timer->sticks); 1666 } 1667 1668 if ((status & CS4231_RECORD_IRQ) && (csr & APC_CDMA_READY)) 1669 snd_cs4231_overrange(chip); 1670 1671 /* ACK the CS4231 interrupt. */ 1672 spin_lock_irqsave(&chip->lock, flags); 1673 snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0); 1674 spin_unlock_irqrestore(&chip->lock, flags); 1675 1676 return IRQ_HANDLED; 1677 } 1678 1679 /* 1680 * SBUS DMA routines 1681 */ 1682 1683 static int sbus_dma_request(struct cs4231_dma_control *dma_cont, 1684 dma_addr_t bus_addr, size_t len) 1685 { 1686 unsigned long flags; 1687 u32 test, csr; 1688 int err; 1689 struct sbus_dma_info *base = &dma_cont->sbus_info; 1690 1691 if (len >= (1 << 24)) 1692 return -EINVAL; 1693 spin_lock_irqsave(&base->lock, flags); 1694 csr = sbus_readl(base->regs + APCCSR); 1695 err = -EINVAL; 1696 test = APC_CDMA_READY; 1697 if (base->dir == APC_PLAY) 1698 test = APC_PDMA_READY; 1699 if (!(csr & test)) 1700 goto out; 1701 err = -EBUSY; 1702 test = APC_XINT_CNVA; 1703 if (base->dir == APC_PLAY) 1704 test = APC_XINT_PNVA; 1705 if (!(csr & test)) 1706 goto out; 1707 err = 0; 1708 sbus_writel(bus_addr, base->regs + base->dir + APCNVA); 1709 sbus_writel(len, base->regs + base->dir + APCNC); 1710 out: 1711 spin_unlock_irqrestore(&base->lock, flags); 1712 return err; 1713 } 1714 1715 static void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d) 1716 { 1717 unsigned long flags; 1718 u32 csr, test; 1719 struct sbus_dma_info *base = &dma_cont->sbus_info; 1720 1721 spin_lock_irqsave(&base->lock, flags); 1722 csr = sbus_readl(base->regs + APCCSR); 1723 test = APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA | 1724 APC_XINT_PLAY | APC_XINT_PEMP | APC_XINT_GENL | 1725 APC_XINT_PENA; 1726 if (base->dir == APC_RECORD) 1727 test = APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA | 1728 APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL; 1729 csr |= test; 1730 sbus_writel(csr, base->regs + APCCSR); 1731 spin_unlock_irqrestore(&base->lock, flags); 1732 } 1733 1734 static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on) 1735 { 1736 unsigned long flags; 1737 u32 csr, shift; 1738 struct sbus_dma_info *base = &dma_cont->sbus_info; 1739 1740 spin_lock_irqsave(&base->lock, flags); 1741 if (!on) { 1742 sbus_writel(0, base->regs + base->dir + APCNC); 1743 sbus_writel(0, base->regs + base->dir + APCNVA); 1744 if (base->dir == APC_PLAY) { 1745 sbus_writel(0, base->regs + base->dir + APCC); 1746 sbus_writel(0, base->regs + base->dir + APCVA); 1747 } 1748 1749 udelay(1200); 1750 } 1751 csr = sbus_readl(base->regs + APCCSR); 1752 shift = 0; 1753 if (base->dir == APC_PLAY) 1754 shift = 1; 1755 if (on) 1756 csr &= ~(APC_CPAUSE << shift); 1757 else 1758 csr |= (APC_CPAUSE << shift); 1759 sbus_writel(csr, base->regs + APCCSR); 1760 if (on) 1761 csr |= (APC_CDMA_READY << shift); 1762 else 1763 csr &= ~(APC_CDMA_READY << shift); 1764 sbus_writel(csr, base->regs + APCCSR); 1765 1766 spin_unlock_irqrestore(&base->lock, flags); 1767 } 1768 1769 static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont) 1770 { 1771 struct sbus_dma_info *base = &dma_cont->sbus_info; 1772 1773 return sbus_readl(base->regs + base->dir + APCVA); 1774 } 1775 1776 /* 1777 * Init and exit routines 1778 */ 1779 1780 static int snd_cs4231_sbus_free(struct snd_cs4231 *chip) 1781 { 1782 struct platform_device *op = chip->op; 1783 1784 if (chip->irq[0]) 1785 free_irq(chip->irq[0], chip); 1786 1787 if (chip->port) 1788 of_iounmap(&op->resource[0], chip->port, chip->regs_size); 1789 1790 return 0; 1791 } 1792 1793 static int snd_cs4231_sbus_dev_free(struct snd_device *device) 1794 { 1795 struct snd_cs4231 *cp = device->device_data; 1796 1797 return snd_cs4231_sbus_free(cp); 1798 } 1799 1800 static struct snd_device_ops snd_cs4231_sbus_dev_ops = { 1801 .dev_free = snd_cs4231_sbus_dev_free, 1802 }; 1803 1804 static int snd_cs4231_sbus_create(struct snd_card *card, 1805 struct platform_device *op, 1806 int dev) 1807 { 1808 struct snd_cs4231 *chip = card->private_data; 1809 int err; 1810 1811 spin_lock_init(&chip->lock); 1812 spin_lock_init(&chip->c_dma.sbus_info.lock); 1813 spin_lock_init(&chip->p_dma.sbus_info.lock); 1814 mutex_init(&chip->mce_mutex); 1815 mutex_init(&chip->open_mutex); 1816 chip->op = op; 1817 chip->regs_size = resource_size(&op->resource[0]); 1818 memcpy(&chip->image, &snd_cs4231_original_image, 1819 sizeof(snd_cs4231_original_image)); 1820 1821 chip->port = of_ioremap(&op->resource[0], 0, 1822 chip->regs_size, "cs4231"); 1823 if (!chip->port) { 1824 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev); 1825 return -EIO; 1826 } 1827 1828 chip->c_dma.sbus_info.regs = chip->port; 1829 chip->p_dma.sbus_info.regs = chip->port; 1830 chip->c_dma.sbus_info.dir = APC_RECORD; 1831 chip->p_dma.sbus_info.dir = APC_PLAY; 1832 1833 chip->p_dma.prepare = sbus_dma_prepare; 1834 chip->p_dma.enable = sbus_dma_enable; 1835 chip->p_dma.request = sbus_dma_request; 1836 chip->p_dma.address = sbus_dma_addr; 1837 1838 chip->c_dma.prepare = sbus_dma_prepare; 1839 chip->c_dma.enable = sbus_dma_enable; 1840 chip->c_dma.request = sbus_dma_request; 1841 chip->c_dma.address = sbus_dma_addr; 1842 1843 if (request_irq(op->archdata.irqs[0], snd_cs4231_sbus_interrupt, 1844 IRQF_SHARED, "cs4231", chip)) { 1845 snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %d\n", 1846 dev, op->archdata.irqs[0]); 1847 snd_cs4231_sbus_free(chip); 1848 return -EBUSY; 1849 } 1850 chip->irq[0] = op->archdata.irqs[0]; 1851 1852 if (snd_cs4231_probe(chip) < 0) { 1853 snd_cs4231_sbus_free(chip); 1854 return -ENODEV; 1855 } 1856 snd_cs4231_init(chip); 1857 1858 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 1859 chip, &snd_cs4231_sbus_dev_ops)) < 0) { 1860 snd_cs4231_sbus_free(chip); 1861 return err; 1862 } 1863 1864 return 0; 1865 } 1866 1867 static int cs4231_sbus_probe(struct platform_device *op) 1868 { 1869 struct resource *rp = &op->resource[0]; 1870 struct snd_card *card; 1871 int err; 1872 1873 err = cs4231_attach_begin(op, &card); 1874 if (err) 1875 return err; 1876 1877 sprintf(card->longname, "%s at 0x%02lx:0x%016Lx, irq %d", 1878 card->shortname, 1879 rp->flags & 0xffL, 1880 (unsigned long long)rp->start, 1881 op->archdata.irqs[0]); 1882 1883 err = snd_cs4231_sbus_create(card, op, dev); 1884 if (err < 0) { 1885 snd_card_free(card); 1886 return err; 1887 } 1888 1889 return cs4231_attach_finish(card); 1890 } 1891 #endif 1892 1893 #ifdef EBUS_SUPPORT 1894 1895 static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event, 1896 void *cookie) 1897 { 1898 struct snd_cs4231 *chip = cookie; 1899 1900 snd_cs4231_play_callback(chip); 1901 } 1902 1903 static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p, 1904 int event, void *cookie) 1905 { 1906 struct snd_cs4231 *chip = cookie; 1907 1908 snd_cs4231_capture_callback(chip); 1909 } 1910 1911 /* 1912 * EBUS DMA wrappers 1913 */ 1914 1915 static int _ebus_dma_request(struct cs4231_dma_control *dma_cont, 1916 dma_addr_t bus_addr, size_t len) 1917 { 1918 return ebus_dma_request(&dma_cont->ebus_info, bus_addr, len); 1919 } 1920 1921 static void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on) 1922 { 1923 ebus_dma_enable(&dma_cont->ebus_info, on); 1924 } 1925 1926 static void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir) 1927 { 1928 ebus_dma_prepare(&dma_cont->ebus_info, dir); 1929 } 1930 1931 static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont) 1932 { 1933 return ebus_dma_addr(&dma_cont->ebus_info); 1934 } 1935 1936 /* 1937 * Init and exit routines 1938 */ 1939 1940 static int snd_cs4231_ebus_free(struct snd_cs4231 *chip) 1941 { 1942 struct platform_device *op = chip->op; 1943 1944 if (chip->c_dma.ebus_info.regs) { 1945 ebus_dma_unregister(&chip->c_dma.ebus_info); 1946 of_iounmap(&op->resource[2], chip->c_dma.ebus_info.regs, 0x10); 1947 } 1948 if (chip->p_dma.ebus_info.regs) { 1949 ebus_dma_unregister(&chip->p_dma.ebus_info); 1950 of_iounmap(&op->resource[1], chip->p_dma.ebus_info.regs, 0x10); 1951 } 1952 1953 if (chip->port) 1954 of_iounmap(&op->resource[0], chip->port, 0x10); 1955 1956 return 0; 1957 } 1958 1959 static int snd_cs4231_ebus_dev_free(struct snd_device *device) 1960 { 1961 struct snd_cs4231 *cp = device->device_data; 1962 1963 return snd_cs4231_ebus_free(cp); 1964 } 1965 1966 static struct snd_device_ops snd_cs4231_ebus_dev_ops = { 1967 .dev_free = snd_cs4231_ebus_dev_free, 1968 }; 1969 1970 static int snd_cs4231_ebus_create(struct snd_card *card, 1971 struct platform_device *op, 1972 int dev) 1973 { 1974 struct snd_cs4231 *chip = card->private_data; 1975 int err; 1976 1977 spin_lock_init(&chip->lock); 1978 spin_lock_init(&chip->c_dma.ebus_info.lock); 1979 spin_lock_init(&chip->p_dma.ebus_info.lock); 1980 mutex_init(&chip->mce_mutex); 1981 mutex_init(&chip->open_mutex); 1982 chip->flags |= CS4231_FLAG_EBUS; 1983 chip->op = op; 1984 memcpy(&chip->image, &snd_cs4231_original_image, 1985 sizeof(snd_cs4231_original_image)); 1986 strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)"); 1987 chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; 1988 chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback; 1989 chip->c_dma.ebus_info.client_cookie = chip; 1990 chip->c_dma.ebus_info.irq = op->archdata.irqs[0]; 1991 strcpy(chip->p_dma.ebus_info.name, "cs4231(play)"); 1992 chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; 1993 chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback; 1994 chip->p_dma.ebus_info.client_cookie = chip; 1995 chip->p_dma.ebus_info.irq = op->archdata.irqs[1]; 1996 1997 chip->p_dma.prepare = _ebus_dma_prepare; 1998 chip->p_dma.enable = _ebus_dma_enable; 1999 chip->p_dma.request = _ebus_dma_request; 2000 chip->p_dma.address = _ebus_dma_addr; 2001 2002 chip->c_dma.prepare = _ebus_dma_prepare; 2003 chip->c_dma.enable = _ebus_dma_enable; 2004 chip->c_dma.request = _ebus_dma_request; 2005 chip->c_dma.address = _ebus_dma_addr; 2006 2007 chip->port = of_ioremap(&op->resource[0], 0, 0x10, "cs4231"); 2008 chip->p_dma.ebus_info.regs = 2009 of_ioremap(&op->resource[1], 0, 0x10, "cs4231_pdma"); 2010 chip->c_dma.ebus_info.regs = 2011 of_ioremap(&op->resource[2], 0, 0x10, "cs4231_cdma"); 2012 if (!chip->port || !chip->p_dma.ebus_info.regs || 2013 !chip->c_dma.ebus_info.regs) { 2014 snd_cs4231_ebus_free(chip); 2015 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev); 2016 return -EIO; 2017 } 2018 2019 if (ebus_dma_register(&chip->c_dma.ebus_info)) { 2020 snd_cs4231_ebus_free(chip); 2021 snd_printdd("cs4231-%d: Unable to register EBUS capture DMA\n", 2022 dev); 2023 return -EBUSY; 2024 } 2025 if (ebus_dma_irq_enable(&chip->c_dma.ebus_info, 1)) { 2026 snd_cs4231_ebus_free(chip); 2027 snd_printdd("cs4231-%d: Unable to enable EBUS capture IRQ\n", 2028 dev); 2029 return -EBUSY; 2030 } 2031 2032 if (ebus_dma_register(&chip->p_dma.ebus_info)) { 2033 snd_cs4231_ebus_free(chip); 2034 snd_printdd("cs4231-%d: Unable to register EBUS play DMA\n", 2035 dev); 2036 return -EBUSY; 2037 } 2038 if (ebus_dma_irq_enable(&chip->p_dma.ebus_info, 1)) { 2039 snd_cs4231_ebus_free(chip); 2040 snd_printdd("cs4231-%d: Unable to enable EBUS play IRQ\n", dev); 2041 return -EBUSY; 2042 } 2043 2044 if (snd_cs4231_probe(chip) < 0) { 2045 snd_cs4231_ebus_free(chip); 2046 return -ENODEV; 2047 } 2048 snd_cs4231_init(chip); 2049 2050 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 2051 chip, &snd_cs4231_ebus_dev_ops)) < 0) { 2052 snd_cs4231_ebus_free(chip); 2053 return err; 2054 } 2055 2056 return 0; 2057 } 2058 2059 static int cs4231_ebus_probe(struct platform_device *op) 2060 { 2061 struct snd_card *card; 2062 int err; 2063 2064 err = cs4231_attach_begin(op, &card); 2065 if (err) 2066 return err; 2067 2068 sprintf(card->longname, "%s at 0x%llx, irq %d", 2069 card->shortname, 2070 op->resource[0].start, 2071 op->archdata.irqs[0]); 2072 2073 err = snd_cs4231_ebus_create(card, op, dev); 2074 if (err < 0) { 2075 snd_card_free(card); 2076 return err; 2077 } 2078 2079 return cs4231_attach_finish(card); 2080 } 2081 #endif 2082 2083 static int cs4231_probe(struct platform_device *op) 2084 { 2085 #ifdef EBUS_SUPPORT 2086 if (!strcmp(op->dev.of_node->parent->name, "ebus")) 2087 return cs4231_ebus_probe(op); 2088 #endif 2089 #ifdef SBUS_SUPPORT 2090 if (!strcmp(op->dev.of_node->parent->name, "sbus") || 2091 !strcmp(op->dev.of_node->parent->name, "sbi")) 2092 return cs4231_sbus_probe(op); 2093 #endif 2094 return -ENODEV; 2095 } 2096 2097 static int cs4231_remove(struct platform_device *op) 2098 { 2099 struct snd_cs4231 *chip = dev_get_drvdata(&op->dev); 2100 2101 snd_card_free(chip->card); 2102 2103 return 0; 2104 } 2105 2106 static const struct of_device_id cs4231_match[] = { 2107 { 2108 .name = "SUNW,CS4231", 2109 }, 2110 { 2111 .name = "audio", 2112 .compatible = "SUNW,CS4231", 2113 }, 2114 {}, 2115 }; 2116 2117 MODULE_DEVICE_TABLE(of, cs4231_match); 2118 2119 static struct platform_driver cs4231_driver = { 2120 .driver = { 2121 .name = "audio", 2122 .owner = THIS_MODULE, 2123 .of_match_table = cs4231_match, 2124 }, 2125 .probe = cs4231_probe, 2126 .remove = cs4231_remove, 2127 }; 2128 2129 module_platform_driver(cs4231_driver); 2130