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 const unsigned int rates[14] = { 204 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050, 205 27042, 32000, 33075, 37800, 44100, 48000 206 }; 207 208 static const 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 const char * const texts[4] = { 1289 "Line", "CD", "Mic", "Mix" 1290 }; 1291 1292 return snd_ctl_enum_info(uinfo, 2, 4, texts); 1293 } 1294 1295 static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol, 1296 struct snd_ctl_elem_value *ucontrol) 1297 { 1298 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1299 unsigned long flags; 1300 1301 spin_lock_irqsave(&chip->lock, flags); 1302 ucontrol->value.enumerated.item[0] = 1303 (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6; 1304 ucontrol->value.enumerated.item[1] = 1305 (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6; 1306 spin_unlock_irqrestore(&chip->lock, flags); 1307 1308 return 0; 1309 } 1310 1311 static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol, 1312 struct snd_ctl_elem_value *ucontrol) 1313 { 1314 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1315 unsigned long flags; 1316 unsigned short left, right; 1317 int change; 1318 1319 if (ucontrol->value.enumerated.item[0] > 3 || 1320 ucontrol->value.enumerated.item[1] > 3) 1321 return -EINVAL; 1322 left = ucontrol->value.enumerated.item[0] << 6; 1323 right = ucontrol->value.enumerated.item[1] << 6; 1324 1325 spin_lock_irqsave(&chip->lock, flags); 1326 1327 left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left; 1328 right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right; 1329 change = left != chip->image[CS4231_LEFT_INPUT] || 1330 right != chip->image[CS4231_RIGHT_INPUT]; 1331 snd_cs4231_out(chip, CS4231_LEFT_INPUT, left); 1332 snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right); 1333 1334 spin_unlock_irqrestore(&chip->lock, flags); 1335 1336 return change; 1337 } 1338 1339 static int snd_cs4231_info_single(struct snd_kcontrol *kcontrol, 1340 struct snd_ctl_elem_info *uinfo) 1341 { 1342 int mask = (kcontrol->private_value >> 16) & 0xff; 1343 1344 uinfo->type = (mask == 1) ? 1345 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 1346 uinfo->count = 1; 1347 uinfo->value.integer.min = 0; 1348 uinfo->value.integer.max = mask; 1349 1350 return 0; 1351 } 1352 1353 static int snd_cs4231_get_single(struct snd_kcontrol *kcontrol, 1354 struct snd_ctl_elem_value *ucontrol) 1355 { 1356 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1357 unsigned long flags; 1358 int reg = kcontrol->private_value & 0xff; 1359 int shift = (kcontrol->private_value >> 8) & 0xff; 1360 int mask = (kcontrol->private_value >> 16) & 0xff; 1361 int invert = (kcontrol->private_value >> 24) & 0xff; 1362 1363 spin_lock_irqsave(&chip->lock, flags); 1364 1365 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask; 1366 1367 spin_unlock_irqrestore(&chip->lock, flags); 1368 1369 if (invert) 1370 ucontrol->value.integer.value[0] = 1371 (mask - ucontrol->value.integer.value[0]); 1372 1373 return 0; 1374 } 1375 1376 static int snd_cs4231_put_single(struct snd_kcontrol *kcontrol, 1377 struct snd_ctl_elem_value *ucontrol) 1378 { 1379 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1380 unsigned long flags; 1381 int reg = kcontrol->private_value & 0xff; 1382 int shift = (kcontrol->private_value >> 8) & 0xff; 1383 int mask = (kcontrol->private_value >> 16) & 0xff; 1384 int invert = (kcontrol->private_value >> 24) & 0xff; 1385 int change; 1386 unsigned short val; 1387 1388 val = (ucontrol->value.integer.value[0] & mask); 1389 if (invert) 1390 val = mask - val; 1391 val <<= shift; 1392 1393 spin_lock_irqsave(&chip->lock, flags); 1394 1395 val = (chip->image[reg] & ~(mask << shift)) | val; 1396 change = val != chip->image[reg]; 1397 snd_cs4231_out(chip, reg, val); 1398 1399 spin_unlock_irqrestore(&chip->lock, flags); 1400 1401 return change; 1402 } 1403 1404 static int snd_cs4231_info_double(struct snd_kcontrol *kcontrol, 1405 struct snd_ctl_elem_info *uinfo) 1406 { 1407 int mask = (kcontrol->private_value >> 24) & 0xff; 1408 1409 uinfo->type = mask == 1 ? 1410 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 1411 uinfo->count = 2; 1412 uinfo->value.integer.min = 0; 1413 uinfo->value.integer.max = mask; 1414 1415 return 0; 1416 } 1417 1418 static int snd_cs4231_get_double(struct snd_kcontrol *kcontrol, 1419 struct snd_ctl_elem_value *ucontrol) 1420 { 1421 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1422 unsigned long flags; 1423 int left_reg = kcontrol->private_value & 0xff; 1424 int right_reg = (kcontrol->private_value >> 8) & 0xff; 1425 int shift_left = (kcontrol->private_value >> 16) & 0x07; 1426 int shift_right = (kcontrol->private_value >> 19) & 0x07; 1427 int mask = (kcontrol->private_value >> 24) & 0xff; 1428 int invert = (kcontrol->private_value >> 22) & 1; 1429 1430 spin_lock_irqsave(&chip->lock, flags); 1431 1432 ucontrol->value.integer.value[0] = 1433 (chip->image[left_reg] >> shift_left) & mask; 1434 ucontrol->value.integer.value[1] = 1435 (chip->image[right_reg] >> shift_right) & mask; 1436 1437 spin_unlock_irqrestore(&chip->lock, flags); 1438 1439 if (invert) { 1440 ucontrol->value.integer.value[0] = 1441 (mask - ucontrol->value.integer.value[0]); 1442 ucontrol->value.integer.value[1] = 1443 (mask - ucontrol->value.integer.value[1]); 1444 } 1445 1446 return 0; 1447 } 1448 1449 static int snd_cs4231_put_double(struct snd_kcontrol *kcontrol, 1450 struct snd_ctl_elem_value *ucontrol) 1451 { 1452 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol); 1453 unsigned long flags; 1454 int left_reg = kcontrol->private_value & 0xff; 1455 int right_reg = (kcontrol->private_value >> 8) & 0xff; 1456 int shift_left = (kcontrol->private_value >> 16) & 0x07; 1457 int shift_right = (kcontrol->private_value >> 19) & 0x07; 1458 int mask = (kcontrol->private_value >> 24) & 0xff; 1459 int invert = (kcontrol->private_value >> 22) & 1; 1460 int change; 1461 unsigned short val1, val2; 1462 1463 val1 = ucontrol->value.integer.value[0] & mask; 1464 val2 = ucontrol->value.integer.value[1] & mask; 1465 if (invert) { 1466 val1 = mask - val1; 1467 val2 = mask - val2; 1468 } 1469 val1 <<= shift_left; 1470 val2 <<= shift_right; 1471 1472 spin_lock_irqsave(&chip->lock, flags); 1473 1474 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1; 1475 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2; 1476 change = val1 != chip->image[left_reg]; 1477 change |= val2 != chip->image[right_reg]; 1478 snd_cs4231_out(chip, left_reg, val1); 1479 snd_cs4231_out(chip, right_reg, val2); 1480 1481 spin_unlock_irqrestore(&chip->lock, flags); 1482 1483 return change; 1484 } 1485 1486 #define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \ 1487 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \ 1488 .info = snd_cs4231_info_single, \ 1489 .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \ 1490 .private_value = (reg) | ((shift) << 8) | ((mask) << 16) | ((invert) << 24) } 1491 1492 #define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, \ 1493 shift_right, mask, invert) \ 1494 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \ 1495 .info = snd_cs4231_info_double, \ 1496 .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \ 1497 .private_value = (left_reg) | ((right_reg) << 8) | ((shift_left) << 16) | \ 1498 ((shift_right) << 19) | ((mask) << 24) | ((invert) << 22) } 1499 1500 static struct snd_kcontrol_new snd_cs4231_controls[] = { 1501 CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, 1502 CS4231_RIGHT_OUTPUT, 7, 7, 1, 1), 1503 CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, 1504 CS4231_RIGHT_OUTPUT, 0, 0, 63, 1), 1505 CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, 1506 CS4231_RIGHT_LINE_IN, 7, 7, 1, 1), 1507 CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN, 1508 CS4231_RIGHT_LINE_IN, 0, 0, 31, 1), 1509 CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT, 1510 CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1), 1511 CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT, 1512 CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1), 1513 CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT, 1514 CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1), 1515 CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT, 1516 CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1), 1517 CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1), 1518 CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1), 1519 CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1), 1520 CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0), 1521 CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0, 1522 15, 0), 1523 { 1524 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1525 .name = "Capture Source", 1526 .info = snd_cs4231_info_mux, 1527 .get = snd_cs4231_get_mux, 1528 .put = snd_cs4231_put_mux, 1529 }, 1530 CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1531 1, 0), 1532 CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0), 1533 CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1), 1534 /* SPARC specific uses of XCTL{0,1} general purpose outputs. */ 1535 CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1), 1536 CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1) 1537 }; 1538 1539 static int snd_cs4231_mixer(struct snd_card *card) 1540 { 1541 struct snd_cs4231 *chip = card->private_data; 1542 int err, idx; 1543 1544 if (snd_BUG_ON(!chip || !chip->pcm)) 1545 return -EINVAL; 1546 1547 strcpy(card->mixername, chip->pcm->name); 1548 1549 for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) { 1550 err = snd_ctl_add(card, 1551 snd_ctl_new1(&snd_cs4231_controls[idx], chip)); 1552 if (err < 0) 1553 return err; 1554 } 1555 return 0; 1556 } 1557 1558 static int dev; 1559 1560 static int cs4231_attach_begin(struct platform_device *op, 1561 struct snd_card **rcard) 1562 { 1563 struct snd_card *card; 1564 struct snd_cs4231 *chip; 1565 int err; 1566 1567 *rcard = NULL; 1568 1569 if (dev >= SNDRV_CARDS) 1570 return -ENODEV; 1571 1572 if (!enable[dev]) { 1573 dev++; 1574 return -ENOENT; 1575 } 1576 1577 err = snd_card_new(&op->dev, index[dev], id[dev], THIS_MODULE, 1578 sizeof(struct snd_cs4231), &card); 1579 if (err < 0) 1580 return err; 1581 1582 strcpy(card->driver, "CS4231"); 1583 strcpy(card->shortname, "Sun CS4231"); 1584 1585 chip = card->private_data; 1586 chip->card = card; 1587 1588 *rcard = card; 1589 return 0; 1590 } 1591 1592 static int cs4231_attach_finish(struct snd_card *card) 1593 { 1594 struct snd_cs4231 *chip = card->private_data; 1595 int err; 1596 1597 err = snd_cs4231_pcm(card); 1598 if (err < 0) 1599 goto out_err; 1600 1601 err = snd_cs4231_mixer(card); 1602 if (err < 0) 1603 goto out_err; 1604 1605 err = snd_cs4231_timer(card); 1606 if (err < 0) 1607 goto out_err; 1608 1609 err = snd_card_register(card); 1610 if (err < 0) 1611 goto out_err; 1612 1613 dev_set_drvdata(&chip->op->dev, chip); 1614 1615 dev++; 1616 return 0; 1617 1618 out_err: 1619 snd_card_free(card); 1620 return err; 1621 } 1622 1623 #ifdef SBUS_SUPPORT 1624 1625 static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id) 1626 { 1627 unsigned long flags; 1628 unsigned char status; 1629 u32 csr; 1630 struct snd_cs4231 *chip = dev_id; 1631 1632 /*This is IRQ is not raised by the cs4231*/ 1633 if (!(__cs4231_readb(chip, CS4231U(chip, STATUS)) & CS4231_GLOBALIRQ)) 1634 return IRQ_NONE; 1635 1636 /* ACK the APC interrupt. */ 1637 csr = sbus_readl(chip->port + APCCSR); 1638 1639 sbus_writel(csr, chip->port + APCCSR); 1640 1641 if ((csr & APC_PDMA_READY) && 1642 (csr & APC_PLAY_INT) && 1643 (csr & APC_XINT_PNVA) && 1644 !(csr & APC_XINT_EMPT)) 1645 snd_cs4231_play_callback(chip); 1646 1647 if ((csr & APC_CDMA_READY) && 1648 (csr & APC_CAPT_INT) && 1649 (csr & APC_XINT_CNVA) && 1650 !(csr & APC_XINT_EMPT)) 1651 snd_cs4231_capture_callback(chip); 1652 1653 status = snd_cs4231_in(chip, CS4231_IRQ_STATUS); 1654 1655 if (status & CS4231_TIMER_IRQ) { 1656 if (chip->timer) 1657 snd_timer_interrupt(chip->timer, chip->timer->sticks); 1658 } 1659 1660 if ((status & CS4231_RECORD_IRQ) && (csr & APC_CDMA_READY)) 1661 snd_cs4231_overrange(chip); 1662 1663 /* ACK the CS4231 interrupt. */ 1664 spin_lock_irqsave(&chip->lock, flags); 1665 snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0); 1666 spin_unlock_irqrestore(&chip->lock, flags); 1667 1668 return IRQ_HANDLED; 1669 } 1670 1671 /* 1672 * SBUS DMA routines 1673 */ 1674 1675 static int sbus_dma_request(struct cs4231_dma_control *dma_cont, 1676 dma_addr_t bus_addr, size_t len) 1677 { 1678 unsigned long flags; 1679 u32 test, csr; 1680 int err; 1681 struct sbus_dma_info *base = &dma_cont->sbus_info; 1682 1683 if (len >= (1 << 24)) 1684 return -EINVAL; 1685 spin_lock_irqsave(&base->lock, flags); 1686 csr = sbus_readl(base->regs + APCCSR); 1687 err = -EINVAL; 1688 test = APC_CDMA_READY; 1689 if (base->dir == APC_PLAY) 1690 test = APC_PDMA_READY; 1691 if (!(csr & test)) 1692 goto out; 1693 err = -EBUSY; 1694 test = APC_XINT_CNVA; 1695 if (base->dir == APC_PLAY) 1696 test = APC_XINT_PNVA; 1697 if (!(csr & test)) 1698 goto out; 1699 err = 0; 1700 sbus_writel(bus_addr, base->regs + base->dir + APCNVA); 1701 sbus_writel(len, base->regs + base->dir + APCNC); 1702 out: 1703 spin_unlock_irqrestore(&base->lock, flags); 1704 return err; 1705 } 1706 1707 static void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d) 1708 { 1709 unsigned long flags; 1710 u32 csr, test; 1711 struct sbus_dma_info *base = &dma_cont->sbus_info; 1712 1713 spin_lock_irqsave(&base->lock, flags); 1714 csr = sbus_readl(base->regs + APCCSR); 1715 test = APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA | 1716 APC_XINT_PLAY | APC_XINT_PEMP | APC_XINT_GENL | 1717 APC_XINT_PENA; 1718 if (base->dir == APC_RECORD) 1719 test = APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA | 1720 APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL; 1721 csr |= test; 1722 sbus_writel(csr, base->regs + APCCSR); 1723 spin_unlock_irqrestore(&base->lock, flags); 1724 } 1725 1726 static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on) 1727 { 1728 unsigned long flags; 1729 u32 csr, shift; 1730 struct sbus_dma_info *base = &dma_cont->sbus_info; 1731 1732 spin_lock_irqsave(&base->lock, flags); 1733 if (!on) { 1734 sbus_writel(0, base->regs + base->dir + APCNC); 1735 sbus_writel(0, base->regs + base->dir + APCNVA); 1736 if (base->dir == APC_PLAY) { 1737 sbus_writel(0, base->regs + base->dir + APCC); 1738 sbus_writel(0, base->regs + base->dir + APCVA); 1739 } 1740 1741 udelay(1200); 1742 } 1743 csr = sbus_readl(base->regs + APCCSR); 1744 shift = 0; 1745 if (base->dir == APC_PLAY) 1746 shift = 1; 1747 if (on) 1748 csr &= ~(APC_CPAUSE << shift); 1749 else 1750 csr |= (APC_CPAUSE << shift); 1751 sbus_writel(csr, base->regs + APCCSR); 1752 if (on) 1753 csr |= (APC_CDMA_READY << shift); 1754 else 1755 csr &= ~(APC_CDMA_READY << shift); 1756 sbus_writel(csr, base->regs + APCCSR); 1757 1758 spin_unlock_irqrestore(&base->lock, flags); 1759 } 1760 1761 static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont) 1762 { 1763 struct sbus_dma_info *base = &dma_cont->sbus_info; 1764 1765 return sbus_readl(base->regs + base->dir + APCVA); 1766 } 1767 1768 /* 1769 * Init and exit routines 1770 */ 1771 1772 static int snd_cs4231_sbus_free(struct snd_cs4231 *chip) 1773 { 1774 struct platform_device *op = chip->op; 1775 1776 if (chip->irq[0]) 1777 free_irq(chip->irq[0], chip); 1778 1779 if (chip->port) 1780 of_iounmap(&op->resource[0], chip->port, chip->regs_size); 1781 1782 return 0; 1783 } 1784 1785 static int snd_cs4231_sbus_dev_free(struct snd_device *device) 1786 { 1787 struct snd_cs4231 *cp = device->device_data; 1788 1789 return snd_cs4231_sbus_free(cp); 1790 } 1791 1792 static struct snd_device_ops snd_cs4231_sbus_dev_ops = { 1793 .dev_free = snd_cs4231_sbus_dev_free, 1794 }; 1795 1796 static int snd_cs4231_sbus_create(struct snd_card *card, 1797 struct platform_device *op, 1798 int dev) 1799 { 1800 struct snd_cs4231 *chip = card->private_data; 1801 int err; 1802 1803 spin_lock_init(&chip->lock); 1804 spin_lock_init(&chip->c_dma.sbus_info.lock); 1805 spin_lock_init(&chip->p_dma.sbus_info.lock); 1806 mutex_init(&chip->mce_mutex); 1807 mutex_init(&chip->open_mutex); 1808 chip->op = op; 1809 chip->regs_size = resource_size(&op->resource[0]); 1810 memcpy(&chip->image, &snd_cs4231_original_image, 1811 sizeof(snd_cs4231_original_image)); 1812 1813 chip->port = of_ioremap(&op->resource[0], 0, 1814 chip->regs_size, "cs4231"); 1815 if (!chip->port) { 1816 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev); 1817 return -EIO; 1818 } 1819 1820 chip->c_dma.sbus_info.regs = chip->port; 1821 chip->p_dma.sbus_info.regs = chip->port; 1822 chip->c_dma.sbus_info.dir = APC_RECORD; 1823 chip->p_dma.sbus_info.dir = APC_PLAY; 1824 1825 chip->p_dma.prepare = sbus_dma_prepare; 1826 chip->p_dma.enable = sbus_dma_enable; 1827 chip->p_dma.request = sbus_dma_request; 1828 chip->p_dma.address = sbus_dma_addr; 1829 1830 chip->c_dma.prepare = sbus_dma_prepare; 1831 chip->c_dma.enable = sbus_dma_enable; 1832 chip->c_dma.request = sbus_dma_request; 1833 chip->c_dma.address = sbus_dma_addr; 1834 1835 if (request_irq(op->archdata.irqs[0], snd_cs4231_sbus_interrupt, 1836 IRQF_SHARED, "cs4231", chip)) { 1837 snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %d\n", 1838 dev, op->archdata.irqs[0]); 1839 snd_cs4231_sbus_free(chip); 1840 return -EBUSY; 1841 } 1842 chip->irq[0] = op->archdata.irqs[0]; 1843 1844 if (snd_cs4231_probe(chip) < 0) { 1845 snd_cs4231_sbus_free(chip); 1846 return -ENODEV; 1847 } 1848 snd_cs4231_init(chip); 1849 1850 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 1851 chip, &snd_cs4231_sbus_dev_ops)) < 0) { 1852 snd_cs4231_sbus_free(chip); 1853 return err; 1854 } 1855 1856 return 0; 1857 } 1858 1859 static int cs4231_sbus_probe(struct platform_device *op) 1860 { 1861 struct resource *rp = &op->resource[0]; 1862 struct snd_card *card; 1863 int err; 1864 1865 err = cs4231_attach_begin(op, &card); 1866 if (err) 1867 return err; 1868 1869 sprintf(card->longname, "%s at 0x%02lx:0x%016Lx, irq %d", 1870 card->shortname, 1871 rp->flags & 0xffL, 1872 (unsigned long long)rp->start, 1873 op->archdata.irqs[0]); 1874 1875 err = snd_cs4231_sbus_create(card, op, dev); 1876 if (err < 0) { 1877 snd_card_free(card); 1878 return err; 1879 } 1880 1881 return cs4231_attach_finish(card); 1882 } 1883 #endif 1884 1885 #ifdef EBUS_SUPPORT 1886 1887 static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event, 1888 void *cookie) 1889 { 1890 struct snd_cs4231 *chip = cookie; 1891 1892 snd_cs4231_play_callback(chip); 1893 } 1894 1895 static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p, 1896 int event, void *cookie) 1897 { 1898 struct snd_cs4231 *chip = cookie; 1899 1900 snd_cs4231_capture_callback(chip); 1901 } 1902 1903 /* 1904 * EBUS DMA wrappers 1905 */ 1906 1907 static int _ebus_dma_request(struct cs4231_dma_control *dma_cont, 1908 dma_addr_t bus_addr, size_t len) 1909 { 1910 return ebus_dma_request(&dma_cont->ebus_info, bus_addr, len); 1911 } 1912 1913 static void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on) 1914 { 1915 ebus_dma_enable(&dma_cont->ebus_info, on); 1916 } 1917 1918 static void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir) 1919 { 1920 ebus_dma_prepare(&dma_cont->ebus_info, dir); 1921 } 1922 1923 static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont) 1924 { 1925 return ebus_dma_addr(&dma_cont->ebus_info); 1926 } 1927 1928 /* 1929 * Init and exit routines 1930 */ 1931 1932 static int snd_cs4231_ebus_free(struct snd_cs4231 *chip) 1933 { 1934 struct platform_device *op = chip->op; 1935 1936 if (chip->c_dma.ebus_info.regs) { 1937 ebus_dma_unregister(&chip->c_dma.ebus_info); 1938 of_iounmap(&op->resource[2], chip->c_dma.ebus_info.regs, 0x10); 1939 } 1940 if (chip->p_dma.ebus_info.regs) { 1941 ebus_dma_unregister(&chip->p_dma.ebus_info); 1942 of_iounmap(&op->resource[1], chip->p_dma.ebus_info.regs, 0x10); 1943 } 1944 1945 if (chip->port) 1946 of_iounmap(&op->resource[0], chip->port, 0x10); 1947 1948 return 0; 1949 } 1950 1951 static int snd_cs4231_ebus_dev_free(struct snd_device *device) 1952 { 1953 struct snd_cs4231 *cp = device->device_data; 1954 1955 return snd_cs4231_ebus_free(cp); 1956 } 1957 1958 static struct snd_device_ops snd_cs4231_ebus_dev_ops = { 1959 .dev_free = snd_cs4231_ebus_dev_free, 1960 }; 1961 1962 static int snd_cs4231_ebus_create(struct snd_card *card, 1963 struct platform_device *op, 1964 int dev) 1965 { 1966 struct snd_cs4231 *chip = card->private_data; 1967 int err; 1968 1969 spin_lock_init(&chip->lock); 1970 spin_lock_init(&chip->c_dma.ebus_info.lock); 1971 spin_lock_init(&chip->p_dma.ebus_info.lock); 1972 mutex_init(&chip->mce_mutex); 1973 mutex_init(&chip->open_mutex); 1974 chip->flags |= CS4231_FLAG_EBUS; 1975 chip->op = op; 1976 memcpy(&chip->image, &snd_cs4231_original_image, 1977 sizeof(snd_cs4231_original_image)); 1978 strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)"); 1979 chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; 1980 chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback; 1981 chip->c_dma.ebus_info.client_cookie = chip; 1982 chip->c_dma.ebus_info.irq = op->archdata.irqs[0]; 1983 strcpy(chip->p_dma.ebus_info.name, "cs4231(play)"); 1984 chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; 1985 chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback; 1986 chip->p_dma.ebus_info.client_cookie = chip; 1987 chip->p_dma.ebus_info.irq = op->archdata.irqs[1]; 1988 1989 chip->p_dma.prepare = _ebus_dma_prepare; 1990 chip->p_dma.enable = _ebus_dma_enable; 1991 chip->p_dma.request = _ebus_dma_request; 1992 chip->p_dma.address = _ebus_dma_addr; 1993 1994 chip->c_dma.prepare = _ebus_dma_prepare; 1995 chip->c_dma.enable = _ebus_dma_enable; 1996 chip->c_dma.request = _ebus_dma_request; 1997 chip->c_dma.address = _ebus_dma_addr; 1998 1999 chip->port = of_ioremap(&op->resource[0], 0, 0x10, "cs4231"); 2000 chip->p_dma.ebus_info.regs = 2001 of_ioremap(&op->resource[1], 0, 0x10, "cs4231_pdma"); 2002 chip->c_dma.ebus_info.regs = 2003 of_ioremap(&op->resource[2], 0, 0x10, "cs4231_cdma"); 2004 if (!chip->port || !chip->p_dma.ebus_info.regs || 2005 !chip->c_dma.ebus_info.regs) { 2006 snd_cs4231_ebus_free(chip); 2007 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev); 2008 return -EIO; 2009 } 2010 2011 if (ebus_dma_register(&chip->c_dma.ebus_info)) { 2012 snd_cs4231_ebus_free(chip); 2013 snd_printdd("cs4231-%d: Unable to register EBUS capture DMA\n", 2014 dev); 2015 return -EBUSY; 2016 } 2017 if (ebus_dma_irq_enable(&chip->c_dma.ebus_info, 1)) { 2018 snd_cs4231_ebus_free(chip); 2019 snd_printdd("cs4231-%d: Unable to enable EBUS capture IRQ\n", 2020 dev); 2021 return -EBUSY; 2022 } 2023 2024 if (ebus_dma_register(&chip->p_dma.ebus_info)) { 2025 snd_cs4231_ebus_free(chip); 2026 snd_printdd("cs4231-%d: Unable to register EBUS play DMA\n", 2027 dev); 2028 return -EBUSY; 2029 } 2030 if (ebus_dma_irq_enable(&chip->p_dma.ebus_info, 1)) { 2031 snd_cs4231_ebus_free(chip); 2032 snd_printdd("cs4231-%d: Unable to enable EBUS play IRQ\n", dev); 2033 return -EBUSY; 2034 } 2035 2036 if (snd_cs4231_probe(chip) < 0) { 2037 snd_cs4231_ebus_free(chip); 2038 return -ENODEV; 2039 } 2040 snd_cs4231_init(chip); 2041 2042 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 2043 chip, &snd_cs4231_ebus_dev_ops)) < 0) { 2044 snd_cs4231_ebus_free(chip); 2045 return err; 2046 } 2047 2048 return 0; 2049 } 2050 2051 static int cs4231_ebus_probe(struct platform_device *op) 2052 { 2053 struct snd_card *card; 2054 int err; 2055 2056 err = cs4231_attach_begin(op, &card); 2057 if (err) 2058 return err; 2059 2060 sprintf(card->longname, "%s at 0x%llx, irq %d", 2061 card->shortname, 2062 op->resource[0].start, 2063 op->archdata.irqs[0]); 2064 2065 err = snd_cs4231_ebus_create(card, op, dev); 2066 if (err < 0) { 2067 snd_card_free(card); 2068 return err; 2069 } 2070 2071 return cs4231_attach_finish(card); 2072 } 2073 #endif 2074 2075 static int cs4231_probe(struct platform_device *op) 2076 { 2077 #ifdef EBUS_SUPPORT 2078 if (!strcmp(op->dev.of_node->parent->name, "ebus")) 2079 return cs4231_ebus_probe(op); 2080 #endif 2081 #ifdef SBUS_SUPPORT 2082 if (!strcmp(op->dev.of_node->parent->name, "sbus") || 2083 !strcmp(op->dev.of_node->parent->name, "sbi")) 2084 return cs4231_sbus_probe(op); 2085 #endif 2086 return -ENODEV; 2087 } 2088 2089 static int cs4231_remove(struct platform_device *op) 2090 { 2091 struct snd_cs4231 *chip = dev_get_drvdata(&op->dev); 2092 2093 snd_card_free(chip->card); 2094 2095 return 0; 2096 } 2097 2098 static const struct of_device_id cs4231_match[] = { 2099 { 2100 .name = "SUNW,CS4231", 2101 }, 2102 { 2103 .name = "audio", 2104 .compatible = "SUNW,CS4231", 2105 }, 2106 {}, 2107 }; 2108 2109 MODULE_DEVICE_TABLE(of, cs4231_match); 2110 2111 static struct platform_driver cs4231_driver = { 2112 .driver = { 2113 .name = "audio", 2114 .of_match_table = cs4231_match, 2115 }, 2116 .probe = cs4231_probe, 2117 .remove = cs4231_remove, 2118 }; 2119 2120 module_platform_driver(cs4231_driver); 2121