1 /* 2 * card-als4000.c - driver for Avance Logic ALS4000 based soundcards. 3 * Copyright (C) 2000 by Bart Hartgers <bart@etpmod.phys.tue.nl>, 4 * Jaroslav Kysela <perex@perex.cz> 5 * Copyright (C) 2002, 2008 by Andreas Mohr <hw7oshyuv3001@sneakemail.com> 6 * 7 * Framework borrowed from Massimo Piccioni's card-als100.c. 8 * 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23 * 24 * NOTES 25 * 26 * Since Avance does not provide any meaningful documentation, and I 27 * bought an ALS4000 based soundcard, I was forced to base this driver 28 * on reverse engineering. 29 * 30 * Note: this is no longer true (thank you!): 31 * pretty verbose chip docu (ALS4000a.PDF) can be found on the ALSA web site. 32 * Page numbers stated anywhere below with the "SPECS_PAGE:" tag 33 * refer to: ALS4000a.PDF specs Ver 1.0, May 28th, 1998. 34 * 35 * The ALS4000 seems to be the PCI-cousin of the ALS100. It contains an 36 * ALS100-like SB DSP/mixer, an OPL3 synth, a MPU401 and a gameport 37 * interface. These subsystems can be mapped into ISA io-port space, 38 * using the PCI-interface. In addition, the PCI-bit provides DMA and IRQ 39 * services to the subsystems. 40 * 41 * While ALS4000 is very similar to a SoundBlaster, the differences in 42 * DMA and capturing require more changes to the SoundBlaster than 43 * desirable, so I made this separate driver. 44 * 45 * The ALS4000 can do real full duplex playback/capture. 46 * 47 * FMDAC: 48 * - 0x4f -> port 0x14 49 * - port 0x15 |= 1 50 * 51 * Enable/disable 3D sound: 52 * - 0x50 -> port 0x14 53 * - change bit 6 (0x40) of port 0x15 54 * 55 * Set QSound: 56 * - 0xdb -> port 0x14 57 * - set port 0x15: 58 * 0x3e (mode 3), 0x3c (mode 2), 0x3a (mode 1), 0x38 (mode 0) 59 * 60 * Set KSound: 61 * - value -> some port 0x0c0d 62 * 63 * ToDo: 64 * - by default, don't enable legacy game and use PCI game I/O 65 * - power management? (card can do voice wakeup according to datasheet!!) 66 */ 67 68 #include <asm/io.h> 69 #include <linux/init.h> 70 #include <linux/pci.h> 71 #include <linux/slab.h> 72 #include <linux/gameport.h> 73 #include <linux/moduleparam.h> 74 #include <linux/dma-mapping.h> 75 #include <sound/core.h> 76 #include <sound/pcm.h> 77 #include <sound/rawmidi.h> 78 #include <sound/mpu401.h> 79 #include <sound/opl3.h> 80 #include <sound/sb.h> 81 #include <sound/initval.h> 82 83 MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>, Andreas Mohr"); 84 MODULE_DESCRIPTION("Avance Logic ALS4000"); 85 MODULE_LICENSE("GPL"); 86 MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS4000}}"); 87 88 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE)) 89 #define SUPPORT_JOYSTICK 1 90 #endif 91 92 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 93 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 94 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 95 #ifdef SUPPORT_JOYSTICK 96 static int joystick_port[SNDRV_CARDS]; 97 #endif 98 99 module_param_array(index, int, NULL, 0444); 100 MODULE_PARM_DESC(index, "Index value for ALS4000 soundcard."); 101 module_param_array(id, charp, NULL, 0444); 102 MODULE_PARM_DESC(id, "ID string for ALS4000 soundcard."); 103 module_param_array(enable, bool, NULL, 0444); 104 MODULE_PARM_DESC(enable, "Enable ALS4000 soundcard."); 105 #ifdef SUPPORT_JOYSTICK 106 module_param_array(joystick_port, int, NULL, 0444); 107 MODULE_PARM_DESC(joystick_port, "Joystick port address for ALS4000 soundcard. (0 = disabled)"); 108 #endif 109 110 struct snd_card_als4000 { 111 /* most frequent access first */ 112 unsigned long iobase; 113 struct pci_dev *pci; 114 struct snd_sb *chip; 115 #ifdef SUPPORT_JOYSTICK 116 struct gameport *gameport; 117 #endif 118 }; 119 120 static struct pci_device_id snd_als4000_ids[] = { 121 { 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ALS4000 */ 122 { 0, } 123 }; 124 125 MODULE_DEVICE_TABLE(pci, snd_als4000_ids); 126 127 enum als4k_iobase_t { 128 /* IOx: B == Byte, W = Word, D = DWord; SPECS_PAGE: 37 */ 129 ALS4K_IOD_00_AC97_ACCESS = 0x00, 130 ALS4K_IOW_04_AC97_READ = 0x04, 131 ALS4K_IOB_06_AC97_STATUS = 0x06, 132 ALS4K_IOB_07_IRQSTATUS = 0x07, 133 ALS4K_IOD_08_GCR_DATA = 0x08, 134 ALS4K_IOB_0C_GCR_INDEX = 0x0c, 135 ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU = 0x0e, 136 ALS4K_IOB_10_ADLIB_ADDR0 = 0x10, 137 ALS4K_IOB_11_ADLIB_ADDR1 = 0x11, 138 ALS4K_IOB_12_ADLIB_ADDR2 = 0x12, 139 ALS4K_IOB_13_ADLIB_ADDR3 = 0x13, 140 ALS4K_IOB_14_MIXER_INDEX = 0x14, 141 ALS4K_IOB_15_MIXER_DATA = 0x15, 142 ALS4K_IOB_16_ESP_RESET = 0x16, 143 ALS4K_IOB_16_ACK_FOR_CR1E = 0x16, /* 2nd function */ 144 ALS4K_IOB_18_OPL_ADDR0 = 0x18, 145 ALS4K_IOB_19_OPL_ADDR1 = 0x19, 146 ALS4K_IOB_1A_ESP_RD_DATA = 0x1a, 147 ALS4K_IOB_1C_ESP_CMD_DATA = 0x1c, 148 ALS4K_IOB_1C_ESP_WR_STATUS = 0x1c, /* 2nd function */ 149 ALS4K_IOB_1E_ESP_RD_STATUS8 = 0x1e, 150 ALS4K_IOB_1F_ESP_RD_STATUS16 = 0x1f, 151 ALS4K_IOB_20_ESP_GAMEPORT_200 = 0x20, 152 ALS4K_IOB_21_ESP_GAMEPORT_201 = 0x21, 153 ALS4K_IOB_30_MIDI_DATA = 0x30, 154 ALS4K_IOB_31_MIDI_STATUS = 0x31, 155 ALS4K_IOB_31_MIDI_COMMAND = 0x31, /* 2nd function */ 156 }; 157 158 enum als4k_iobase_0e_t { 159 ALS4K_IOB_0E_MPU_IRQ = 0x10, 160 ALS4K_IOB_0E_CR1E_IRQ = 0x40, 161 ALS4K_IOB_0E_SB_DMA_IRQ = 0x80, 162 }; 163 164 enum als4k_gcr_t { /* all registers 32bit wide; SPECS_PAGE: 38 to 42 */ 165 ALS4K_GCR8C_MISC_CTRL = 0x8c, 166 ALS4K_GCR90_TEST_MODE_REG = 0x90, 167 ALS4K_GCR91_DMA0_ADDR = 0x91, 168 ALS4K_GCR92_DMA0_MODE_COUNT = 0x92, 169 ALS4K_GCR93_DMA1_ADDR = 0x93, 170 ALS4K_GCR94_DMA1_MODE_COUNT = 0x94, 171 ALS4K_GCR95_DMA3_ADDR = 0x95, 172 ALS4K_GCR96_DMA3_MODE_COUNT = 0x96, 173 ALS4K_GCR99_DMA_EMULATION_CTRL = 0x99, 174 ALS4K_GCRA0_FIFO1_CURRENT_ADDR = 0xa0, 175 ALS4K_GCRA1_FIFO1_STATUS_BYTECOUNT = 0xa1, 176 ALS4K_GCRA2_FIFO2_PCIADDR = 0xa2, 177 ALS4K_GCRA3_FIFO2_COUNT = 0xa3, 178 ALS4K_GCRA4_FIFO2_CURRENT_ADDR = 0xa4, 179 ALS4K_GCRA5_FIFO1_STATUS_BYTECOUNT = 0xa5, 180 ALS4K_GCRA6_PM_CTRL = 0xa6, 181 ALS4K_GCRA7_PCI_ACCESS_STORAGE = 0xa7, 182 ALS4K_GCRA8_LEGACY_CFG1 = 0xa8, 183 ALS4K_GCRA9_LEGACY_CFG2 = 0xa9, 184 ALS4K_GCRFF_DUMMY_SCRATCH = 0xff, 185 }; 186 187 enum als4k_gcr8c_t { 188 ALS4K_GCR8C_IRQ_MASK_CTRL_ENABLE = 0x8000, 189 ALS4K_GCR8C_CHIP_REV_MASK = 0xf0000 190 }; 191 192 static inline void snd_als4k_iobase_writeb(unsigned long iobase, 193 enum als4k_iobase_t reg, 194 u8 val) 195 { 196 outb(val, iobase + reg); 197 } 198 199 static inline void snd_als4k_iobase_writel(unsigned long iobase, 200 enum als4k_iobase_t reg, 201 u32 val) 202 { 203 outl(val, iobase + reg); 204 } 205 206 static inline u8 snd_als4k_iobase_readb(unsigned long iobase, 207 enum als4k_iobase_t reg) 208 { 209 return inb(iobase + reg); 210 } 211 212 static inline u32 snd_als4k_iobase_readl(unsigned long iobase, 213 enum als4k_iobase_t reg) 214 { 215 return inl(iobase + reg); 216 } 217 218 static inline void snd_als4k_gcr_write_addr(unsigned long iobase, 219 enum als4k_gcr_t reg, 220 u32 val) 221 { 222 snd_als4k_iobase_writeb(iobase, ALS4K_IOB_0C_GCR_INDEX, reg); 223 snd_als4k_iobase_writel(iobase, ALS4K_IOD_08_GCR_DATA, val); 224 } 225 226 static inline void snd_als4k_gcr_write(struct snd_sb *sb, 227 enum als4k_gcr_t reg, 228 u32 val) 229 { 230 snd_als4k_gcr_write_addr(sb->alt_port, reg, val); 231 } 232 233 static inline u32 snd_als4k_gcr_read_addr(unsigned long iobase, 234 enum als4k_gcr_t reg) 235 { 236 /* SPECS_PAGE: 37/38 */ 237 snd_als4k_iobase_writeb(iobase, ALS4K_IOB_0C_GCR_INDEX, reg); 238 return snd_als4k_iobase_readl(iobase, ALS4K_IOD_08_GCR_DATA); 239 } 240 241 static inline u32 snd_als4k_gcr_read(struct snd_sb *sb, enum als4k_gcr_t reg) 242 { 243 return snd_als4k_gcr_read_addr(sb->alt_port, reg); 244 } 245 246 enum als4k_cr_t { /* all registers 8bit wide; SPECS_PAGE: 20 to 23 */ 247 ALS4K_CR0_SB_CONFIG = 0x00, 248 ALS4K_CR2_MISC_CONTROL = 0x02, 249 ALS4K_CR3_CONFIGURATION = 0x03, 250 ALS4K_CR17_FIFO_STATUS = 0x17, 251 ALS4K_CR18_ESP_MAJOR_VERSION = 0x18, 252 ALS4K_CR19_ESP_MINOR_VERSION = 0x19, 253 ALS4K_CR1A_MPU401_UART_MODE_CONTROL = 0x1a, 254 ALS4K_CR1C_FIFO2_BLOCK_LENGTH_LO = 0x1c, 255 ALS4K_CR1D_FIFO2_BLOCK_LENGTH_HI = 0x1d, 256 ALS4K_CR1E_FIFO2_CONTROL = 0x1e, /* secondary PCM FIFO (recording) */ 257 ALS4K_CR3A_MISC_CONTROL = 0x3a, 258 ALS4K_CR3B_CRC32_BYTE0 = 0x3b, /* for testing, activate via CR3A */ 259 ALS4K_CR3C_CRC32_BYTE1 = 0x3c, 260 ALS4K_CR3D_CRC32_BYTE2 = 0x3d, 261 ALS4K_CR3E_CRC32_BYTE3 = 0x3e, 262 }; 263 264 enum als4k_cr0_t { 265 ALS4K_CR0_DMA_CONTIN_MODE_CTRL = 0x02, /* IRQ/FIFO controlled for 0/1 */ 266 ALS4K_CR0_DMA_90H_MODE_CTRL = 0x04, /* IRQ/FIFO controlled for 0/1 */ 267 ALS4K_CR0_MX80_81_REG_WRITE_ENABLE = 0x80, 268 }; 269 270 static inline void snd_als4_cr_write(struct snd_sb *chip, 271 enum als4k_cr_t reg, 272 u8 data) 273 { 274 /* Control Register is reg | 0xc0 (bit 7, 6 set) on sbmixer_index 275 * NOTE: assumes chip->mixer_lock to be locked externally already! 276 * SPECS_PAGE: 6 */ 277 snd_sbmixer_write(chip, reg | 0xc0, data); 278 } 279 280 static inline u8 snd_als4_cr_read(struct snd_sb *chip, 281 enum als4k_cr_t reg) 282 { 283 /* NOTE: assumes chip->mixer_lock to be locked externally already! */ 284 return snd_sbmixer_read(chip, reg | 0xc0); 285 } 286 287 288 289 static void snd_als4000_set_rate(struct snd_sb *chip, unsigned int rate) 290 { 291 if (!(chip->mode & SB_RATE_LOCK)) { 292 snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT); 293 snd_sbdsp_command(chip, rate>>8); 294 snd_sbdsp_command(chip, rate); 295 } 296 } 297 298 static inline void snd_als4000_set_capture_dma(struct snd_sb *chip, 299 dma_addr_t addr, unsigned size) 300 { 301 /* SPECS_PAGE: 40 */ 302 snd_als4k_gcr_write(chip, ALS4K_GCRA2_FIFO2_PCIADDR, addr); 303 snd_als4k_gcr_write(chip, ALS4K_GCRA3_FIFO2_COUNT, (size-1)); 304 } 305 306 static inline void snd_als4000_set_playback_dma(struct snd_sb *chip, 307 dma_addr_t addr, 308 unsigned size) 309 { 310 /* SPECS_PAGE: 38 */ 311 snd_als4k_gcr_write(chip, ALS4K_GCR91_DMA0_ADDR, addr); 312 snd_als4k_gcr_write(chip, ALS4K_GCR92_DMA0_MODE_COUNT, 313 (size-1)|0x180000); 314 } 315 316 #define ALS4000_FORMAT_SIGNED (1<<0) 317 #define ALS4000_FORMAT_16BIT (1<<1) 318 #define ALS4000_FORMAT_STEREO (1<<2) 319 320 static int snd_als4000_get_format(struct snd_pcm_runtime *runtime) 321 { 322 int result; 323 324 result = 0; 325 if (snd_pcm_format_signed(runtime->format)) 326 result |= ALS4000_FORMAT_SIGNED; 327 if (snd_pcm_format_physical_width(runtime->format) == 16) 328 result |= ALS4000_FORMAT_16BIT; 329 if (runtime->channels > 1) 330 result |= ALS4000_FORMAT_STEREO; 331 return result; 332 } 333 334 /* structure for setting up playback */ 335 static const struct { 336 unsigned char dsp_cmd, dma_on, dma_off, format; 337 } playback_cmd_vals[]={ 338 /* ALS4000_FORMAT_U8_MONO */ 339 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_MONO }, 340 /* ALS4000_FORMAT_S8_MONO */ 341 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_MONO }, 342 /* ALS4000_FORMAT_U16L_MONO */ 343 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_MONO }, 344 /* ALS4000_FORMAT_S16L_MONO */ 345 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_MONO }, 346 /* ALS4000_FORMAT_U8_STEREO */ 347 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_STEREO }, 348 /* ALS4000_FORMAT_S8_STEREO */ 349 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_STEREO }, 350 /* ALS4000_FORMAT_U16L_STEREO */ 351 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_STEREO }, 352 /* ALS4000_FORMAT_S16L_STEREO */ 353 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_STEREO }, 354 }; 355 #define playback_cmd(chip) (playback_cmd_vals[(chip)->playback_format]) 356 357 /* structure for setting up capture */ 358 enum { CMD_WIDTH8=0x04, CMD_SIGNED=0x10, CMD_MONO=0x80, CMD_STEREO=0xA0 }; 359 static const unsigned char capture_cmd_vals[]= 360 { 361 CMD_WIDTH8|CMD_MONO, /* ALS4000_FORMAT_U8_MONO */ 362 CMD_WIDTH8|CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S8_MONO */ 363 CMD_MONO, /* ALS4000_FORMAT_U16L_MONO */ 364 CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S16L_MONO */ 365 CMD_WIDTH8|CMD_STEREO, /* ALS4000_FORMAT_U8_STEREO */ 366 CMD_WIDTH8|CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S8_STEREO */ 367 CMD_STEREO, /* ALS4000_FORMAT_U16L_STEREO */ 368 CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S16L_STEREO */ 369 }; 370 #define capture_cmd(chip) (capture_cmd_vals[(chip)->capture_format]) 371 372 static int snd_als4000_hw_params(struct snd_pcm_substream *substream, 373 struct snd_pcm_hw_params *hw_params) 374 { 375 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 376 } 377 378 static int snd_als4000_hw_free(struct snd_pcm_substream *substream) 379 { 380 snd_pcm_lib_free_pages(substream); 381 return 0; 382 } 383 384 static int snd_als4000_capture_prepare(struct snd_pcm_substream *substream) 385 { 386 struct snd_sb *chip = snd_pcm_substream_chip(substream); 387 struct snd_pcm_runtime *runtime = substream->runtime; 388 unsigned long size; 389 unsigned count; 390 391 chip->capture_format = snd_als4000_get_format(runtime); 392 393 size = snd_pcm_lib_buffer_bytes(substream); 394 count = snd_pcm_lib_period_bytes(substream); 395 396 if (chip->capture_format & ALS4000_FORMAT_16BIT) 397 count >>= 1; 398 count--; 399 400 spin_lock_irq(&chip->reg_lock); 401 snd_als4000_set_rate(chip, runtime->rate); 402 snd_als4000_set_capture_dma(chip, runtime->dma_addr, size); 403 spin_unlock_irq(&chip->reg_lock); 404 spin_lock_irq(&chip->mixer_lock); 405 snd_als4_cr_write(chip, ALS4K_CR1C_FIFO2_BLOCK_LENGTH_LO, count & 0xff); 406 snd_als4_cr_write(chip, ALS4K_CR1D_FIFO2_BLOCK_LENGTH_HI, count >> 8); 407 spin_unlock_irq(&chip->mixer_lock); 408 return 0; 409 } 410 411 static int snd_als4000_playback_prepare(struct snd_pcm_substream *substream) 412 { 413 struct snd_sb *chip = snd_pcm_substream_chip(substream); 414 struct snd_pcm_runtime *runtime = substream->runtime; 415 unsigned long size; 416 unsigned count; 417 418 chip->playback_format = snd_als4000_get_format(runtime); 419 420 size = snd_pcm_lib_buffer_bytes(substream); 421 count = snd_pcm_lib_period_bytes(substream); 422 423 if (chip->playback_format & ALS4000_FORMAT_16BIT) 424 count >>= 1; 425 count--; 426 427 /* FIXME: from second playback on, there's a lot more clicks and pops 428 * involved here than on first playback. Fiddling with 429 * tons of different settings didn't help (DMA, speaker on/off, 430 * reordering, ...). Something seems to get enabled on playback 431 * that I haven't found out how to disable again, which then causes 432 * the switching pops to reach the speakers the next time here. */ 433 spin_lock_irq(&chip->reg_lock); 434 snd_als4000_set_rate(chip, runtime->rate); 435 snd_als4000_set_playback_dma(chip, runtime->dma_addr, size); 436 437 /* SPEAKER_ON not needed, since dma_on seems to also enable speaker */ 438 /* snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); */ 439 snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd); 440 snd_sbdsp_command(chip, playback_cmd(chip).format); 441 snd_sbdsp_command(chip, count & 0xff); 442 snd_sbdsp_command(chip, count >> 8); 443 snd_sbdsp_command(chip, playback_cmd(chip).dma_off); 444 spin_unlock_irq(&chip->reg_lock); 445 446 return 0; 447 } 448 449 static int snd_als4000_capture_trigger(struct snd_pcm_substream *substream, int cmd) 450 { 451 struct snd_sb *chip = snd_pcm_substream_chip(substream); 452 int result = 0; 453 454 /* FIXME race condition in here!!! 455 chip->mode non-atomic update gets consistently protected 456 by reg_lock always, _except_ for this place!! 457 Probably need to take reg_lock as outer (or inner??) lock, too. 458 (or serialize both lock operations? probably not, though... - racy?) 459 */ 460 spin_lock(&chip->mixer_lock); 461 switch (cmd) { 462 case SNDRV_PCM_TRIGGER_START: 463 case SNDRV_PCM_TRIGGER_RESUME: 464 chip->mode |= SB_RATE_LOCK_CAPTURE; 465 snd_als4_cr_write(chip, ALS4K_CR1E_FIFO2_CONTROL, 466 capture_cmd(chip)); 467 break; 468 case SNDRV_PCM_TRIGGER_STOP: 469 case SNDRV_PCM_TRIGGER_SUSPEND: 470 chip->mode &= ~SB_RATE_LOCK_CAPTURE; 471 snd_als4_cr_write(chip, ALS4K_CR1E_FIFO2_CONTROL, 472 capture_cmd(chip)); 473 break; 474 default: 475 result = -EINVAL; 476 break; 477 } 478 spin_unlock(&chip->mixer_lock); 479 return result; 480 } 481 482 static int snd_als4000_playback_trigger(struct snd_pcm_substream *substream, int cmd) 483 { 484 struct snd_sb *chip = snd_pcm_substream_chip(substream); 485 int result = 0; 486 487 spin_lock(&chip->reg_lock); 488 switch (cmd) { 489 case SNDRV_PCM_TRIGGER_START: 490 case SNDRV_PCM_TRIGGER_RESUME: 491 chip->mode |= SB_RATE_LOCK_PLAYBACK; 492 snd_sbdsp_command(chip, playback_cmd(chip).dma_on); 493 break; 494 case SNDRV_PCM_TRIGGER_STOP: 495 case SNDRV_PCM_TRIGGER_SUSPEND: 496 snd_sbdsp_command(chip, playback_cmd(chip).dma_off); 497 chip->mode &= ~SB_RATE_LOCK_PLAYBACK; 498 break; 499 default: 500 result = -EINVAL; 501 break; 502 } 503 spin_unlock(&chip->reg_lock); 504 return result; 505 } 506 507 static snd_pcm_uframes_t snd_als4000_capture_pointer(struct snd_pcm_substream *substream) 508 { 509 struct snd_sb *chip = snd_pcm_substream_chip(substream); 510 unsigned int result; 511 512 spin_lock(&chip->reg_lock); 513 result = snd_als4k_gcr_read(chip, ALS4K_GCRA4_FIFO2_CURRENT_ADDR); 514 spin_unlock(&chip->reg_lock); 515 result &= 0xffff; 516 return bytes_to_frames( substream->runtime, result ); 517 } 518 519 static snd_pcm_uframes_t snd_als4000_playback_pointer(struct snd_pcm_substream *substream) 520 { 521 struct snd_sb *chip = snd_pcm_substream_chip(substream); 522 unsigned result; 523 524 spin_lock(&chip->reg_lock); 525 result = snd_als4k_gcr_read(chip, ALS4K_GCRA0_FIFO1_CURRENT_ADDR); 526 spin_unlock(&chip->reg_lock); 527 result &= 0xffff; 528 return bytes_to_frames( substream->runtime, result ); 529 } 530 531 /* FIXME: this IRQ routine doesn't really support IRQ sharing (we always 532 * return IRQ_HANDLED no matter whether we actually had an IRQ flag or not). 533 * ALS4000a.PDF writes that while ACKing IRQ in PCI block will *not* ACK 534 * the IRQ in the SB core, ACKing IRQ in SB block *will* ACK the PCI IRQ 535 * register (alt_port + ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU). Probably something 536 * could be optimized here to query/write one register only... 537 * And even if both registers need to be queried, then there's still the 538 * question of whether it's actually correct to ACK PCI IRQ before reading 539 * SB IRQ like we do now, since ALS4000a.PDF mentions that PCI IRQ will *clear* 540 * SB IRQ status. 541 * (hmm, SPECS_PAGE: 38 mentions it the other way around!) 542 * And do we *really* need the lock here for *reading* SB_DSP4_IRQSTATUS?? 543 * */ 544 static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id) 545 { 546 struct snd_sb *chip = dev_id; 547 unsigned pci_irqstatus; 548 unsigned sb_irqstatus; 549 550 /* find out which bit of the ALS4000 PCI block produced the interrupt, 551 SPECS_PAGE: 38, 5 */ 552 pci_irqstatus = snd_als4k_iobase_readb(chip->alt_port, 553 ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU); 554 if ((pci_irqstatus & ALS4K_IOB_0E_SB_DMA_IRQ) 555 && (chip->playback_substream)) /* playback */ 556 snd_pcm_period_elapsed(chip->playback_substream); 557 if ((pci_irqstatus & ALS4K_IOB_0E_CR1E_IRQ) 558 && (chip->capture_substream)) /* capturing */ 559 snd_pcm_period_elapsed(chip->capture_substream); 560 if ((pci_irqstatus & ALS4K_IOB_0E_MPU_IRQ) 561 && (chip->rmidi)) /* MPU401 interrupt */ 562 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data); 563 /* ACK the PCI block IRQ */ 564 snd_als4k_iobase_writeb(chip->alt_port, 565 ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU, pci_irqstatus); 566 567 spin_lock(&chip->mixer_lock); 568 /* SPECS_PAGE: 20 */ 569 sb_irqstatus = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS); 570 spin_unlock(&chip->mixer_lock); 571 572 if (sb_irqstatus & SB_IRQTYPE_8BIT) 573 snd_sb_ack_8bit(chip); 574 if (sb_irqstatus & SB_IRQTYPE_16BIT) 575 snd_sb_ack_16bit(chip); 576 if (sb_irqstatus & SB_IRQTYPE_MPUIN) 577 inb(chip->mpu_port); 578 if (sb_irqstatus & ALS4K_IRQTYPE_CR1E_DMA) 579 snd_als4k_iobase_readb(chip->alt_port, 580 ALS4K_IOB_16_ACK_FOR_CR1E); 581 582 /* printk(KERN_INFO "als4000: irq 0x%04x 0x%04x\n", 583 pci_irqstatus, sb_irqstatus); */ 584 585 /* only ack the things we actually handled above */ 586 return IRQ_RETVAL( 587 (pci_irqstatus & (ALS4K_IOB_0E_SB_DMA_IRQ|ALS4K_IOB_0E_CR1E_IRQ| 588 ALS4K_IOB_0E_MPU_IRQ)) 589 || (sb_irqstatus & (SB_IRQTYPE_8BIT|SB_IRQTYPE_16BIT| 590 SB_IRQTYPE_MPUIN|ALS4K_IRQTYPE_CR1E_DMA)) 591 ); 592 } 593 594 /*****************************************************************/ 595 596 static struct snd_pcm_hardware snd_als4000_playback = 597 { 598 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 599 SNDRV_PCM_INFO_MMAP_VALID), 600 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | 601 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ 602 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 603 .rate_min = 4000, 604 .rate_max = 48000, 605 .channels_min = 1, 606 .channels_max = 2, 607 .buffer_bytes_max = 65536, 608 .period_bytes_min = 64, 609 .period_bytes_max = 65536, 610 .periods_min = 1, 611 .periods_max = 1024, 612 .fifo_size = 0 613 }; 614 615 static struct snd_pcm_hardware snd_als4000_capture = 616 { 617 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 618 SNDRV_PCM_INFO_MMAP_VALID), 619 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | 620 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ 621 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 622 .rate_min = 4000, 623 .rate_max = 48000, 624 .channels_min = 1, 625 .channels_max = 2, 626 .buffer_bytes_max = 65536, 627 .period_bytes_min = 64, 628 .period_bytes_max = 65536, 629 .periods_min = 1, 630 .periods_max = 1024, 631 .fifo_size = 0 632 }; 633 634 /*****************************************************************/ 635 636 static int snd_als4000_playback_open(struct snd_pcm_substream *substream) 637 { 638 struct snd_sb *chip = snd_pcm_substream_chip(substream); 639 struct snd_pcm_runtime *runtime = substream->runtime; 640 641 chip->playback_substream = substream; 642 runtime->hw = snd_als4000_playback; 643 return 0; 644 } 645 646 static int snd_als4000_playback_close(struct snd_pcm_substream *substream) 647 { 648 struct snd_sb *chip = snd_pcm_substream_chip(substream); 649 650 chip->playback_substream = NULL; 651 snd_pcm_lib_free_pages(substream); 652 return 0; 653 } 654 655 static int snd_als4000_capture_open(struct snd_pcm_substream *substream) 656 { 657 struct snd_sb *chip = snd_pcm_substream_chip(substream); 658 struct snd_pcm_runtime *runtime = substream->runtime; 659 660 chip->capture_substream = substream; 661 runtime->hw = snd_als4000_capture; 662 return 0; 663 } 664 665 static int snd_als4000_capture_close(struct snd_pcm_substream *substream) 666 { 667 struct snd_sb *chip = snd_pcm_substream_chip(substream); 668 669 chip->capture_substream = NULL; 670 snd_pcm_lib_free_pages(substream); 671 return 0; 672 } 673 674 /******************************************************************/ 675 676 static struct snd_pcm_ops snd_als4000_playback_ops = { 677 .open = snd_als4000_playback_open, 678 .close = snd_als4000_playback_close, 679 .ioctl = snd_pcm_lib_ioctl, 680 .hw_params = snd_als4000_hw_params, 681 .hw_free = snd_als4000_hw_free, 682 .prepare = snd_als4000_playback_prepare, 683 .trigger = snd_als4000_playback_trigger, 684 .pointer = snd_als4000_playback_pointer 685 }; 686 687 static struct snd_pcm_ops snd_als4000_capture_ops = { 688 .open = snd_als4000_capture_open, 689 .close = snd_als4000_capture_close, 690 .ioctl = snd_pcm_lib_ioctl, 691 .hw_params = snd_als4000_hw_params, 692 .hw_free = snd_als4000_hw_free, 693 .prepare = snd_als4000_capture_prepare, 694 .trigger = snd_als4000_capture_trigger, 695 .pointer = snd_als4000_capture_pointer 696 }; 697 698 static int __devinit snd_als4000_pcm(struct snd_sb *chip, int device) 699 { 700 struct snd_pcm *pcm; 701 int err; 702 703 err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm); 704 if (err < 0) 705 return err; 706 pcm->private_data = chip; 707 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; 708 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als4000_playback_ops); 709 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als4000_capture_ops); 710 711 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 712 64*1024, 64*1024); 713 714 chip->pcm = pcm; 715 716 return 0; 717 } 718 719 /******************************************************************/ 720 721 static void snd_als4000_set_addr(unsigned long iobase, 722 unsigned int sb_io, 723 unsigned int mpu_io, 724 unsigned int opl_io, 725 unsigned int game_io) 726 { 727 u32 cfg1 = 0; 728 u32 cfg2 = 0; 729 730 if (mpu_io > 0) 731 cfg2 |= (mpu_io | 1) << 16; 732 if (sb_io > 0) 733 cfg2 |= (sb_io | 1); 734 if (game_io > 0) 735 cfg1 |= (game_io | 1) << 16; 736 if (opl_io > 0) 737 cfg1 |= (opl_io | 1); 738 snd_als4k_gcr_write_addr(iobase, ALS4K_GCRA8_LEGACY_CFG1, cfg1); 739 snd_als4k_gcr_write_addr(iobase, ALS4K_GCRA9_LEGACY_CFG2, cfg2); 740 } 741 742 static void snd_als4000_configure(struct snd_sb *chip) 743 { 744 u8 tmp; 745 int i; 746 747 /* do some more configuration */ 748 spin_lock_irq(&chip->mixer_lock); 749 tmp = snd_als4_cr_read(chip, ALS4K_CR0_SB_CONFIG); 750 snd_als4_cr_write(chip, ALS4K_CR0_SB_CONFIG, 751 tmp|ALS4K_CR0_MX80_81_REG_WRITE_ENABLE); 752 /* always select DMA channel 0, since we do not actually use DMA 753 * SPECS_PAGE: 19/20 */ 754 snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0); 755 snd_als4_cr_write(chip, ALS4K_CR0_SB_CONFIG, 756 tmp & ~ALS4K_CR0_MX80_81_REG_WRITE_ENABLE); 757 spin_unlock_irq(&chip->mixer_lock); 758 759 spin_lock_irq(&chip->reg_lock); 760 /* enable interrupts */ 761 snd_als4k_gcr_write(chip, ALS4K_GCR8C_MISC_CTRL, 762 ALS4K_GCR8C_IRQ_MASK_CTRL_ENABLE); 763 764 /* SPECS_PAGE: 39 */ 765 for (i = ALS4K_GCR91_DMA0_ADDR; i <= ALS4K_GCR96_DMA3_MODE_COUNT; ++i) 766 snd_als4k_gcr_write(chip, i, 0); 767 768 snd_als4k_gcr_write(chip, ALS4K_GCR99_DMA_EMULATION_CTRL, 769 snd_als4k_gcr_read(chip, ALS4K_GCR99_DMA_EMULATION_CTRL)); 770 spin_unlock_irq(&chip->reg_lock); 771 } 772 773 #ifdef SUPPORT_JOYSTICK 774 static int __devinit snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) 775 { 776 struct gameport *gp; 777 struct resource *r; 778 int io_port; 779 780 if (joystick_port[dev] == 0) 781 return -ENODEV; 782 783 if (joystick_port[dev] == 1) { /* auto-detect */ 784 for (io_port = 0x200; io_port <= 0x218; io_port += 8) { 785 r = request_region(io_port, 8, "ALS4000 gameport"); 786 if (r) 787 break; 788 } 789 } else { 790 io_port = joystick_port[dev]; 791 r = request_region(io_port, 8, "ALS4000 gameport"); 792 } 793 794 if (!r) { 795 printk(KERN_WARNING "als4000: cannot reserve joystick ports\n"); 796 return -EBUSY; 797 } 798 799 acard->gameport = gp = gameport_allocate_port(); 800 if (!gp) { 801 printk(KERN_ERR "als4000: cannot allocate memory for gameport\n"); 802 release_and_free_resource(r); 803 return -ENOMEM; 804 } 805 806 gameport_set_name(gp, "ALS4000 Gameport"); 807 gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci)); 808 gameport_set_dev_parent(gp, &acard->pci->dev); 809 gp->io = io_port; 810 gameport_set_port_data(gp, r); 811 812 /* Enable legacy joystick port */ 813 snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1); 814 815 gameport_register_port(acard->gameport); 816 817 return 0; 818 } 819 820 static void snd_als4000_free_gameport(struct snd_card_als4000 *acard) 821 { 822 if (acard->gameport) { 823 struct resource *r = gameport_get_port_data(acard->gameport); 824 825 gameport_unregister_port(acard->gameport); 826 acard->gameport = NULL; 827 828 /* disable joystick */ 829 snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0); 830 831 release_and_free_resource(r); 832 } 833 } 834 #else 835 static inline int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) { return -ENOSYS; } 836 static inline void snd_als4000_free_gameport(struct snd_card_als4000 *acard) { } 837 #endif 838 839 static void snd_card_als4000_free( struct snd_card *card ) 840 { 841 struct snd_card_als4000 *acard = card->private_data; 842 843 /* make sure that interrupts are disabled */ 844 snd_als4k_gcr_write_addr(acard->iobase, ALS4K_GCR8C_MISC_CTRL, 0); 845 /* free resources */ 846 snd_als4000_free_gameport(acard); 847 pci_release_regions(acard->pci); 848 pci_disable_device(acard->pci); 849 } 850 851 static int __devinit snd_card_als4000_probe(struct pci_dev *pci, 852 const struct pci_device_id *pci_id) 853 { 854 static int dev; 855 struct snd_card *card; 856 struct snd_card_als4000 *acard; 857 unsigned long iobase; 858 struct snd_sb *chip; 859 struct snd_opl3 *opl3; 860 unsigned short word; 861 int err; 862 863 if (dev >= SNDRV_CARDS) 864 return -ENODEV; 865 if (!enable[dev]) { 866 dev++; 867 return -ENOENT; 868 } 869 870 /* enable PCI device */ 871 if ((err = pci_enable_device(pci)) < 0) { 872 return err; 873 } 874 /* check, if we can restrict PCI DMA transfers to 24 bits */ 875 if (pci_set_dma_mask(pci, DMA_24BIT_MASK) < 0 || 876 pci_set_consistent_dma_mask(pci, DMA_24BIT_MASK) < 0) { 877 snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n"); 878 pci_disable_device(pci); 879 return -ENXIO; 880 } 881 882 if ((err = pci_request_regions(pci, "ALS4000")) < 0) { 883 pci_disable_device(pci); 884 return err; 885 } 886 iobase = pci_resource_start(pci, 0); 887 888 pci_read_config_word(pci, PCI_COMMAND, &word); 889 pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO); 890 pci_set_master(pci); 891 892 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 893 sizeof(*acard) /* private_data: acard */); 894 if (card == NULL) { 895 pci_release_regions(pci); 896 pci_disable_device(pci); 897 return -ENOMEM; 898 } 899 900 acard = card->private_data; 901 acard->pci = pci; 902 acard->iobase = iobase; 903 card->private_free = snd_card_als4000_free; 904 905 /* disable all legacy ISA stuff */ 906 snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0); 907 908 if ((err = snd_sbdsp_create(card, 909 iobase + ALS4K_IOB_10_ADLIB_ADDR0, 910 pci->irq, 911 /* internally registered as IRQF_SHARED in case of ALS4000 SB */ 912 snd_als4000_interrupt, 913 -1, 914 -1, 915 SB_HW_ALS4000, 916 &chip)) < 0) { 917 goto out_err; 918 } 919 acard->chip = chip; 920 921 chip->pci = pci; 922 chip->alt_port = iobase; 923 snd_card_set_dev(card, &pci->dev); 924 925 snd_als4000_configure(chip); 926 927 strcpy(card->driver, "ALS4000"); 928 strcpy(card->shortname, "Avance Logic ALS4000"); 929 sprintf(card->longname, "%s at 0x%lx, irq %i", 930 card->shortname, chip->alt_port, chip->irq); 931 932 if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000, 933 iobase + ALS4K_IOB_30_MIDI_DATA, 934 MPU401_INFO_INTEGRATED, 935 pci->irq, 0, &chip->rmidi)) < 0) { 936 printk(KERN_ERR "als4000: no MPU-401 device at 0x%lx?\n", 937 iobase + ALS4K_IOB_30_MIDI_DATA); 938 goto out_err; 939 } 940 /* FIXME: ALS4000 has interesting MPU401 configuration features 941 * at ALS4K_CR1A_MPU401_UART_MODE_CONTROL 942 * (pass-thru / UART switching, fast MIDI clock, etc.), 943 * however there doesn't seem to be an ALSA API for this... 944 * SPECS_PAGE: 21 */ 945 946 if ((err = snd_als4000_pcm(chip, 0)) < 0) { 947 goto out_err; 948 } 949 if ((err = snd_sbmixer_new(chip)) < 0) { 950 goto out_err; 951 } 952 953 if (snd_opl3_create(card, 954 iobase + ALS4K_IOB_10_ADLIB_ADDR0, 955 iobase + ALS4K_IOB_12_ADLIB_ADDR2, 956 OPL3_HW_AUTO, 1, &opl3) < 0) { 957 printk(KERN_ERR "als4000: no OPL device at 0x%lx-0x%lx?\n", 958 iobase + ALS4K_IOB_10_ADLIB_ADDR0, 959 iobase + ALS4K_IOB_12_ADLIB_ADDR2); 960 } else { 961 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) { 962 goto out_err; 963 } 964 } 965 966 snd_als4000_create_gameport(acard, dev); 967 968 if ((err = snd_card_register(card)) < 0) { 969 goto out_err; 970 } 971 pci_set_drvdata(pci, card); 972 dev++; 973 err = 0; 974 goto out; 975 976 out_err: 977 snd_card_free(card); 978 979 out: 980 return err; 981 } 982 983 static void __devexit snd_card_als4000_remove(struct pci_dev *pci) 984 { 985 snd_card_free(pci_get_drvdata(pci)); 986 pci_set_drvdata(pci, NULL); 987 } 988 989 #ifdef CONFIG_PM 990 static int snd_als4000_suspend(struct pci_dev *pci, pm_message_t state) 991 { 992 struct snd_card *card = pci_get_drvdata(pci); 993 struct snd_card_als4000 *acard = card->private_data; 994 struct snd_sb *chip = acard->chip; 995 996 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 997 998 snd_pcm_suspend_all(chip->pcm); 999 snd_sbmixer_suspend(chip); 1000 1001 pci_disable_device(pci); 1002 pci_save_state(pci); 1003 pci_set_power_state(pci, pci_choose_state(pci, state)); 1004 return 0; 1005 } 1006 1007 static int snd_als4000_resume(struct pci_dev *pci) 1008 { 1009 struct snd_card *card = pci_get_drvdata(pci); 1010 struct snd_card_als4000 *acard = card->private_data; 1011 struct snd_sb *chip = acard->chip; 1012 1013 pci_set_power_state(pci, PCI_D0); 1014 pci_restore_state(pci); 1015 if (pci_enable_device(pci) < 0) { 1016 printk(KERN_ERR "als4000: pci_enable_device failed, " 1017 "disabling device\n"); 1018 snd_card_disconnect(card); 1019 return -EIO; 1020 } 1021 pci_set_master(pci); 1022 1023 snd_als4000_configure(chip); 1024 snd_sbdsp_reset(chip); 1025 snd_sbmixer_resume(chip); 1026 1027 #ifdef SUPPORT_JOYSTICK 1028 if (acard->gameport) 1029 snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1); 1030 #endif 1031 1032 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 1033 return 0; 1034 } 1035 #endif /* CONFIG_PM */ 1036 1037 1038 static struct pci_driver driver = { 1039 .name = "ALS4000", 1040 .id_table = snd_als4000_ids, 1041 .probe = snd_card_als4000_probe, 1042 .remove = __devexit_p(snd_card_als4000_remove), 1043 #ifdef CONFIG_PM 1044 .suspend = snd_als4000_suspend, 1045 .resume = snd_als4000_resume, 1046 #endif 1047 }; 1048 1049 static int __init alsa_card_als4000_init(void) 1050 { 1051 return pci_register_driver(&driver); 1052 } 1053 1054 static void __exit alsa_card_als4000_exit(void) 1055 { 1056 pci_unregister_driver(&driver); 1057 } 1058 1059 module_init(alsa_card_als4000_init) 1060 module_exit(alsa_card_als4000_exit) 1061