1 /* 2 * Copyright (c) by Jaroslav Kysela <perex@perex.cz> 3 * Routines for control of GF1 chip (PCM things) 4 * 5 * InterWave chips supports interleaved DMA, but this feature isn't used in 6 * this code. 7 * 8 * This code emulates autoinit DMA transfer for playback, recording by GF1 9 * chip doesn't support autoinit DMA. 10 * 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of the GNU General Public License as published by 14 * the Free Software Foundation; either version 2 of the License, or 15 * (at your option) any later version. 16 * 17 * This program is distributed in the hope that it will be useful, 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 * GNU General Public License for more details. 21 * 22 * You should have received a copy of the GNU General Public License 23 * along with this program; if not, write to the Free Software 24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 25 * 26 */ 27 28 #include <asm/dma.h> 29 #include <linux/slab.h> 30 #include <linux/sched/signal.h> 31 32 #include <sound/core.h> 33 #include <sound/control.h> 34 #include <sound/gus.h> 35 #include <sound/pcm_params.h> 36 #include "gus_tables.h" 37 38 /* maximum rate */ 39 40 #define SNDRV_GF1_PCM_RATE 48000 41 42 #define SNDRV_GF1_PCM_PFLG_NONE 0 43 #define SNDRV_GF1_PCM_PFLG_ACTIVE (1<<0) 44 #define SNDRV_GF1_PCM_PFLG_NEUTRAL (2<<0) 45 46 struct gus_pcm_private { 47 struct snd_gus_card * gus; 48 struct snd_pcm_substream *substream; 49 spinlock_t lock; 50 unsigned int voices; 51 struct snd_gus_voice *pvoices[2]; 52 unsigned int memory; 53 unsigned short flags; 54 unsigned char voice_ctrl, ramp_ctrl; 55 unsigned int bpos; 56 unsigned int blocks; 57 unsigned int block_size; 58 unsigned int dma_size; 59 wait_queue_head_t sleep; 60 atomic_t dma_count; 61 int final_volume; 62 }; 63 64 static void snd_gf1_pcm_block_change_ack(struct snd_gus_card * gus, void *private_data) 65 { 66 struct gus_pcm_private *pcmp = private_data; 67 68 if (pcmp) { 69 atomic_dec(&pcmp->dma_count); 70 wake_up(&pcmp->sleep); 71 } 72 } 73 74 static int snd_gf1_pcm_block_change(struct snd_pcm_substream *substream, 75 unsigned int offset, 76 unsigned int addr, 77 unsigned int count) 78 { 79 struct snd_gf1_dma_block block; 80 struct snd_pcm_runtime *runtime = substream->runtime; 81 struct gus_pcm_private *pcmp = runtime->private_data; 82 83 count += offset & 31; 84 offset &= ~31; 85 /* 86 snd_printk(KERN_DEBUG "block change - offset = 0x%x, count = 0x%x\n", 87 offset, count); 88 */ 89 memset(&block, 0, sizeof(block)); 90 block.cmd = SNDRV_GF1_DMA_IRQ; 91 if (snd_pcm_format_unsigned(runtime->format)) 92 block.cmd |= SNDRV_GF1_DMA_UNSIGNED; 93 if (snd_pcm_format_width(runtime->format) == 16) 94 block.cmd |= SNDRV_GF1_DMA_16BIT; 95 block.addr = addr & ~31; 96 block.buffer = runtime->dma_area + offset; 97 block.buf_addr = runtime->dma_addr + offset; 98 block.count = count; 99 block.private_data = pcmp; 100 block.ack = snd_gf1_pcm_block_change_ack; 101 if (!snd_gf1_dma_transfer_block(pcmp->gus, &block, 0, 0)) 102 atomic_inc(&pcmp->dma_count); 103 return 0; 104 } 105 106 static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream) 107 { 108 struct snd_pcm_runtime *runtime = substream->runtime; 109 struct gus_pcm_private *pcmp = runtime->private_data; 110 struct snd_gus_card * gus = pcmp->gus; 111 unsigned long flags; 112 unsigned char voice_ctrl, ramp_ctrl; 113 unsigned short rate; 114 unsigned int curr, begin, end; 115 unsigned short vol; 116 unsigned char pan; 117 unsigned int voice; 118 119 spin_lock_irqsave(&pcmp->lock, flags); 120 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) { 121 spin_unlock_irqrestore(&pcmp->lock, flags); 122 return; 123 } 124 pcmp->flags |= SNDRV_GF1_PCM_PFLG_ACTIVE; 125 pcmp->final_volume = 0; 126 spin_unlock_irqrestore(&pcmp->lock, flags); 127 rate = snd_gf1_translate_freq(gus, runtime->rate << 4); 128 /* enable WAVE IRQ */ 129 voice_ctrl = snd_pcm_format_width(runtime->format) == 16 ? 0x24 : 0x20; 130 /* enable RAMP IRQ + rollover */ 131 ramp_ctrl = 0x24; 132 if (pcmp->blocks == 1) { 133 voice_ctrl |= 0x08; /* loop enable */ 134 ramp_ctrl &= ~0x04; /* disable rollover */ 135 } 136 for (voice = 0; voice < pcmp->voices; voice++) { 137 begin = pcmp->memory + voice * (pcmp->dma_size / runtime->channels); 138 curr = begin + (pcmp->bpos * pcmp->block_size) / runtime->channels; 139 end = curr + (pcmp->block_size / runtime->channels); 140 end -= snd_pcm_format_width(runtime->format) == 16 ? 2 : 1; 141 /* 142 snd_printk(KERN_DEBUG "init: curr=0x%x, begin=0x%x, end=0x%x, " 143 "ctrl=0x%x, ramp=0x%x, rate=0x%x\n", 144 curr, begin, end, voice_ctrl, ramp_ctrl, rate); 145 */ 146 pan = runtime->channels == 2 ? (!voice ? 1 : 14) : 8; 147 vol = !voice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right; 148 spin_lock_irqsave(&gus->reg_lock, flags); 149 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number); 150 snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, pan); 151 snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, rate); 152 snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, begin << 4, voice_ctrl & 4); 153 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4); 154 snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, curr << 4, voice_ctrl & 4); 155 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, SNDRV_GF1_MIN_VOLUME << 4); 156 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0x2f); 157 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET); 158 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, vol >> 8); 159 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl); 160 if (!gus->gf1.enh_mode) { 161 snd_gf1_delay(gus); 162 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl); 163 } 164 spin_unlock_irqrestore(&gus->reg_lock, flags); 165 } 166 spin_lock_irqsave(&gus->reg_lock, flags); 167 for (voice = 0; voice < pcmp->voices; voice++) { 168 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number); 169 if (gus->gf1.enh_mode) 170 snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, 0x00); /* deactivate voice */ 171 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl); 172 voice_ctrl &= ~0x20; 173 } 174 voice_ctrl |= 0x20; 175 if (!gus->gf1.enh_mode) { 176 snd_gf1_delay(gus); 177 for (voice = 0; voice < pcmp->voices; voice++) { 178 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number); 179 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl); 180 voice_ctrl &= ~0x20; /* disable IRQ for next voice */ 181 } 182 } 183 spin_unlock_irqrestore(&gus->reg_lock, flags); 184 } 185 186 static void snd_gf1_pcm_interrupt_wave(struct snd_gus_card * gus, 187 struct snd_gus_voice *pvoice) 188 { 189 struct gus_pcm_private * pcmp; 190 struct snd_pcm_runtime *runtime; 191 unsigned char voice_ctrl, ramp_ctrl; 192 unsigned int idx; 193 unsigned int end, step; 194 195 if (!pvoice->private_data) { 196 snd_printd("snd_gf1_pcm: unknown wave irq?\n"); 197 snd_gf1_smart_stop_voice(gus, pvoice->number); 198 return; 199 } 200 pcmp = pvoice->private_data; 201 if (pcmp == NULL) { 202 snd_printd("snd_gf1_pcm: unknown wave irq?\n"); 203 snd_gf1_smart_stop_voice(gus, pvoice->number); 204 return; 205 } 206 gus = pcmp->gus; 207 runtime = pcmp->substream->runtime; 208 209 spin_lock(&gus->reg_lock); 210 snd_gf1_select_voice(gus, pvoice->number); 211 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & ~0x8b; 212 ramp_ctrl = (snd_gf1_read8(gus, SNDRV_GF1_VB_VOLUME_CONTROL) & ~0xa4) | 0x03; 213 #if 0 214 snd_gf1_select_voice(gus, pvoice->number); 215 printk(KERN_DEBUG "position = 0x%x\n", 216 (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4)); 217 snd_gf1_select_voice(gus, pcmp->pvoices[1]->number); 218 printk(KERN_DEBUG "position = 0x%x\n", 219 (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4)); 220 snd_gf1_select_voice(gus, pvoice->number); 221 #endif 222 pcmp->bpos++; 223 pcmp->bpos %= pcmp->blocks; 224 if (pcmp->bpos + 1 >= pcmp->blocks) { /* last block? */ 225 voice_ctrl |= 0x08; /* enable loop */ 226 } else { 227 ramp_ctrl |= 0x04; /* enable rollover */ 228 } 229 end = pcmp->memory + (((pcmp->bpos + 1) * pcmp->block_size) / runtime->channels); 230 end -= voice_ctrl & 4 ? 2 : 1; 231 step = pcmp->dma_size / runtime->channels; 232 voice_ctrl |= 0x20; 233 if (!pcmp->final_volume) { 234 ramp_ctrl |= 0x20; 235 ramp_ctrl &= ~0x03; 236 } 237 for (idx = 0; idx < pcmp->voices; idx++, end += step) { 238 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number); 239 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4); 240 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl); 241 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl); 242 voice_ctrl &= ~0x20; 243 } 244 if (!gus->gf1.enh_mode) { 245 snd_gf1_delay(gus); 246 voice_ctrl |= 0x20; 247 for (idx = 0; idx < pcmp->voices; idx++) { 248 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number); 249 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl); 250 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl); 251 voice_ctrl &= ~0x20; 252 } 253 } 254 spin_unlock(&gus->reg_lock); 255 256 snd_pcm_period_elapsed(pcmp->substream); 257 #if 0 258 if ((runtime->flags & SNDRV_PCM_FLG_MMAP) && 259 *runtime->state == SNDRV_PCM_STATE_RUNNING) { 260 end = pcmp->bpos * pcmp->block_size; 261 if (runtime->channels > 1) { 262 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + (end / 2), pcmp->block_size / 2); 263 snd_gf1_pcm_block_change(pcmp->substream, end + (pcmp->block_size / 2), pcmp->memory + (pcmp->dma_size / 2) + (end / 2), pcmp->block_size / 2); 264 } else { 265 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + end, pcmp->block_size); 266 } 267 } 268 #endif 269 } 270 271 static void snd_gf1_pcm_interrupt_volume(struct snd_gus_card * gus, 272 struct snd_gus_voice * pvoice) 273 { 274 unsigned short vol; 275 int cvoice; 276 struct gus_pcm_private *pcmp = pvoice->private_data; 277 278 /* stop ramp, but leave rollover bit untouched */ 279 spin_lock(&gus->reg_lock); 280 snd_gf1_select_voice(gus, pvoice->number); 281 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL); 282 spin_unlock(&gus->reg_lock); 283 if (pcmp == NULL) 284 return; 285 /* are we active? */ 286 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE)) 287 return; 288 /* load real volume - better precision */ 289 cvoice = pcmp->pvoices[0] == pvoice ? 0 : 1; 290 if (pcmp->substream == NULL) 291 return; 292 vol = !cvoice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right; 293 spin_lock(&gus->reg_lock); 294 snd_gf1_select_voice(gus, pvoice->number); 295 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol); 296 pcmp->final_volume = 1; 297 spin_unlock(&gus->reg_lock); 298 } 299 300 static void snd_gf1_pcm_volume_change(struct snd_gus_card * gus) 301 { 302 } 303 304 static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf, 305 unsigned int pos, unsigned int count, 306 int w16, int invert) 307 { 308 unsigned int len; 309 unsigned long flags; 310 311 /* 312 printk(KERN_DEBUG 313 "poke block; buf = 0x%x, pos = %i, count = %i, port = 0x%x\n", 314 (int)buf, pos, count, gus->gf1.port); 315 */ 316 while (count > 0) { 317 len = count; 318 if (len > 512) /* limit, to allow IRQ */ 319 len = 512; 320 count -= len; 321 if (gus->interwave) { 322 spin_lock_irqsave(&gus->reg_lock, flags); 323 snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01 | (invert ? 0x08 : 0x00)); 324 snd_gf1_dram_addr(gus, pos); 325 if (w16) { 326 outb(SNDRV_GF1_GW_DRAM_IO16, GUSP(gus, GF1REGSEL)); 327 outsw(GUSP(gus, GF1DATALOW), buf, len >> 1); 328 } else { 329 outsb(GUSP(gus, DRAM), buf, len); 330 } 331 spin_unlock_irqrestore(&gus->reg_lock, flags); 332 buf += 512; 333 pos += 512; 334 } else { 335 invert = invert ? 0x80 : 0x00; 336 if (w16) { 337 len >>= 1; 338 while (len--) { 339 snd_gf1_poke(gus, pos++, *buf++); 340 snd_gf1_poke(gus, pos++, *buf++ ^ invert); 341 } 342 } else { 343 while (len--) 344 snd_gf1_poke(gus, pos++, *buf++ ^ invert); 345 } 346 } 347 if (count > 0 && !in_interrupt()) { 348 schedule_timeout_interruptible(1); 349 if (signal_pending(current)) 350 return -EAGAIN; 351 } 352 } 353 return 0; 354 } 355 356 static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream, 357 int voice, 358 snd_pcm_uframes_t pos, 359 void __user *src, 360 snd_pcm_uframes_t count) 361 { 362 struct snd_pcm_runtime *runtime = substream->runtime; 363 struct gus_pcm_private *pcmp = runtime->private_data; 364 struct snd_gus_card *gus = pcmp->gus; 365 unsigned int bpos, len; 366 int w16, invert; 367 368 bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2)); 369 len = samples_to_bytes(runtime, count); 370 if (snd_BUG_ON(bpos > pcmp->dma_size)) 371 return -EIO; 372 if (snd_BUG_ON(bpos + len > pcmp->dma_size)) 373 return -EIO; 374 if (copy_from_user(runtime->dma_area + bpos, src, len)) 375 return -EFAULT; 376 if (len > 32) 377 return snd_gf1_pcm_block_change(substream, bpos, 378 pcmp->memory + bpos, len); 379 380 w16 = (snd_pcm_format_width(runtime->format) == 16); 381 invert = snd_pcm_format_unsigned(runtime->format); 382 return snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, 383 pcmp->memory + bpos, len, w16, invert); 384 } 385 386 static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream, 387 int voice, 388 snd_pcm_uframes_t pos, 389 snd_pcm_uframes_t count) 390 { 391 struct snd_pcm_runtime *runtime = substream->runtime; 392 struct gus_pcm_private *pcmp = runtime->private_data; 393 struct snd_gus_card *gus = pcmp->gus; 394 unsigned int bpos, len; 395 int w16, invert; 396 397 bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2)); 398 len = samples_to_bytes(runtime, count); 399 if (snd_BUG_ON(bpos > pcmp->dma_size)) 400 return -EIO; 401 if (snd_BUG_ON(bpos + len > pcmp->dma_size)) 402 return -EIO; 403 snd_pcm_format_set_silence(runtime->format, runtime->dma_area + bpos, 404 count); 405 if (len > 32) 406 return snd_gf1_pcm_block_change(substream, bpos, 407 pcmp->memory + bpos, len); 408 409 w16 = (snd_pcm_format_width(runtime->format) == 16); 410 invert = snd_pcm_format_unsigned(runtime->format); 411 return snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, 412 pcmp->memory + bpos, len, w16, invert); 413 } 414 415 static int snd_gf1_pcm_playback_hw_params(struct snd_pcm_substream *substream, 416 struct snd_pcm_hw_params *hw_params) 417 { 418 struct snd_gus_card *gus = snd_pcm_substream_chip(substream); 419 struct snd_pcm_runtime *runtime = substream->runtime; 420 struct gus_pcm_private *pcmp = runtime->private_data; 421 int err; 422 423 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) 424 return err; 425 if (err > 0) { /* change */ 426 struct snd_gf1_mem_block *block; 427 if (pcmp->memory > 0) { 428 snd_gf1_mem_free(&gus->gf1.mem_alloc, pcmp->memory); 429 pcmp->memory = 0; 430 } 431 if ((block = snd_gf1_mem_alloc(&gus->gf1.mem_alloc, 432 SNDRV_GF1_MEM_OWNER_DRIVER, 433 "GF1 PCM", 434 runtime->dma_bytes, 1, 32, 435 NULL)) == NULL) 436 return -ENOMEM; 437 pcmp->memory = block->ptr; 438 } 439 pcmp->voices = params_channels(hw_params); 440 if (pcmp->pvoices[0] == NULL) { 441 if ((pcmp->pvoices[0] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL) 442 return -ENOMEM; 443 pcmp->pvoices[0]->handler_wave = snd_gf1_pcm_interrupt_wave; 444 pcmp->pvoices[0]->handler_volume = snd_gf1_pcm_interrupt_volume; 445 pcmp->pvoices[0]->volume_change = snd_gf1_pcm_volume_change; 446 pcmp->pvoices[0]->private_data = pcmp; 447 } 448 if (pcmp->voices > 1 && pcmp->pvoices[1] == NULL) { 449 if ((pcmp->pvoices[1] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL) 450 return -ENOMEM; 451 pcmp->pvoices[1]->handler_wave = snd_gf1_pcm_interrupt_wave; 452 pcmp->pvoices[1]->handler_volume = snd_gf1_pcm_interrupt_volume; 453 pcmp->pvoices[1]->volume_change = snd_gf1_pcm_volume_change; 454 pcmp->pvoices[1]->private_data = pcmp; 455 } else if (pcmp->voices == 1) { 456 if (pcmp->pvoices[1]) { 457 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]); 458 pcmp->pvoices[1] = NULL; 459 } 460 } 461 return 0; 462 } 463 464 static int snd_gf1_pcm_playback_hw_free(struct snd_pcm_substream *substream) 465 { 466 struct snd_pcm_runtime *runtime = substream->runtime; 467 struct gus_pcm_private *pcmp = runtime->private_data; 468 469 snd_pcm_lib_free_pages(substream); 470 if (pcmp->pvoices[0]) { 471 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[0]); 472 pcmp->pvoices[0] = NULL; 473 } 474 if (pcmp->pvoices[1]) { 475 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]); 476 pcmp->pvoices[1] = NULL; 477 } 478 if (pcmp->memory > 0) { 479 snd_gf1_mem_free(&pcmp->gus->gf1.mem_alloc, pcmp->memory); 480 pcmp->memory = 0; 481 } 482 return 0; 483 } 484 485 static int snd_gf1_pcm_playback_prepare(struct snd_pcm_substream *substream) 486 { 487 struct snd_pcm_runtime *runtime = substream->runtime; 488 struct gus_pcm_private *pcmp = runtime->private_data; 489 490 pcmp->bpos = 0; 491 pcmp->dma_size = snd_pcm_lib_buffer_bytes(substream); 492 pcmp->block_size = snd_pcm_lib_period_bytes(substream); 493 pcmp->blocks = pcmp->dma_size / pcmp->block_size; 494 return 0; 495 } 496 497 static int snd_gf1_pcm_playback_trigger(struct snd_pcm_substream *substream, 498 int cmd) 499 { 500 struct snd_gus_card *gus = snd_pcm_substream_chip(substream); 501 struct snd_pcm_runtime *runtime = substream->runtime; 502 struct gus_pcm_private *pcmp = runtime->private_data; 503 int voice; 504 505 if (cmd == SNDRV_PCM_TRIGGER_START) { 506 snd_gf1_pcm_trigger_up(substream); 507 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { 508 spin_lock(&pcmp->lock); 509 pcmp->flags &= ~SNDRV_GF1_PCM_PFLG_ACTIVE; 510 spin_unlock(&pcmp->lock); 511 voice = pcmp->pvoices[0]->number; 512 snd_gf1_stop_voices(gus, voice, voice); 513 if (pcmp->pvoices[1]) { 514 voice = pcmp->pvoices[1]->number; 515 snd_gf1_stop_voices(gus, voice, voice); 516 } 517 } else { 518 return -EINVAL; 519 } 520 return 0; 521 } 522 523 static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(struct snd_pcm_substream *substream) 524 { 525 struct snd_gus_card *gus = snd_pcm_substream_chip(substream); 526 struct snd_pcm_runtime *runtime = substream->runtime; 527 struct gus_pcm_private *pcmp = runtime->private_data; 528 unsigned int pos; 529 unsigned char voice_ctrl; 530 531 pos = 0; 532 spin_lock(&gus->reg_lock); 533 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) { 534 snd_gf1_select_voice(gus, pcmp->pvoices[0]->number); 535 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL); 536 pos = (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4) - pcmp->memory; 537 if (substream->runtime->channels > 1) 538 pos <<= 1; 539 pos = bytes_to_frames(runtime, pos); 540 } 541 spin_unlock(&gus->reg_lock); 542 return pos; 543 } 544 545 static struct snd_ratnum clock = { 546 .num = 9878400/16, 547 .den_min = 2, 548 .den_max = 257, 549 .den_step = 1, 550 }; 551 552 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = { 553 .nrats = 1, 554 .rats = &clock, 555 }; 556 557 static int snd_gf1_pcm_capture_hw_params(struct snd_pcm_substream *substream, 558 struct snd_pcm_hw_params *hw_params) 559 { 560 struct snd_gus_card *gus = snd_pcm_substream_chip(substream); 561 562 gus->c_dma_size = params_buffer_bytes(hw_params); 563 gus->c_period_size = params_period_bytes(hw_params); 564 gus->c_pos = 0; 565 gus->gf1.pcm_rcntrl_reg = 0x21; /* IRQ at end, enable & start */ 566 if (params_channels(hw_params) > 1) 567 gus->gf1.pcm_rcntrl_reg |= 2; 568 if (gus->gf1.dma2 > 3) 569 gus->gf1.pcm_rcntrl_reg |= 4; 570 if (snd_pcm_format_unsigned(params_format(hw_params))) 571 gus->gf1.pcm_rcntrl_reg |= 0x80; 572 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 573 } 574 575 static int snd_gf1_pcm_capture_hw_free(struct snd_pcm_substream *substream) 576 { 577 return snd_pcm_lib_free_pages(substream); 578 } 579 580 static int snd_gf1_pcm_capture_prepare(struct snd_pcm_substream *substream) 581 { 582 struct snd_gus_card *gus = snd_pcm_substream_chip(substream); 583 struct snd_pcm_runtime *runtime = substream->runtime; 584 585 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RECORD_RATE, runtime->rate_den - 2); 586 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */ 587 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */ 588 snd_dma_program(gus->gf1.dma2, runtime->dma_addr, gus->c_period_size, DMA_MODE_READ); 589 return 0; 590 } 591 592 static int snd_gf1_pcm_capture_trigger(struct snd_pcm_substream *substream, 593 int cmd) 594 { 595 struct snd_gus_card *gus = snd_pcm_substream_chip(substream); 596 int val; 597 598 if (cmd == SNDRV_PCM_TRIGGER_START) { 599 val = gus->gf1.pcm_rcntrl_reg; 600 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { 601 val = 0; 602 } else { 603 return -EINVAL; 604 } 605 606 spin_lock(&gus->reg_lock); 607 snd_gf1_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, val); 608 snd_gf1_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); 609 spin_unlock(&gus->reg_lock); 610 return 0; 611 } 612 613 static snd_pcm_uframes_t snd_gf1_pcm_capture_pointer(struct snd_pcm_substream *substream) 614 { 615 struct snd_gus_card *gus = snd_pcm_substream_chip(substream); 616 int pos = snd_dma_pointer(gus->gf1.dma2, gus->c_period_size); 617 pos = bytes_to_frames(substream->runtime, (gus->c_pos + pos) % gus->c_dma_size); 618 return pos; 619 } 620 621 static void snd_gf1_pcm_interrupt_dma_read(struct snd_gus_card * gus) 622 { 623 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */ 624 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */ 625 if (gus->pcm_cap_substream != NULL) { 626 snd_gf1_pcm_capture_prepare(gus->pcm_cap_substream); 627 snd_gf1_pcm_capture_trigger(gus->pcm_cap_substream, SNDRV_PCM_TRIGGER_START); 628 gus->c_pos += gus->c_period_size; 629 snd_pcm_period_elapsed(gus->pcm_cap_substream); 630 } 631 } 632 633 static struct snd_pcm_hardware snd_gf1_pcm_playback = 634 { 635 .info = SNDRV_PCM_INFO_NONINTERLEAVED, 636 .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | 637 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE), 638 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 639 .rate_min = 5510, 640 .rate_max = 48000, 641 .channels_min = 1, 642 .channels_max = 2, 643 .buffer_bytes_max = (128*1024), 644 .period_bytes_min = 64, 645 .period_bytes_max = (128*1024), 646 .periods_min = 1, 647 .periods_max = 1024, 648 .fifo_size = 0, 649 }; 650 651 static struct snd_pcm_hardware snd_gf1_pcm_capture = 652 { 653 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 654 SNDRV_PCM_INFO_MMAP_VALID), 655 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8, 656 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100, 657 .rate_min = 5510, 658 .rate_max = 44100, 659 .channels_min = 1, 660 .channels_max = 2, 661 .buffer_bytes_max = (128*1024), 662 .period_bytes_min = 64, 663 .period_bytes_max = (128*1024), 664 .periods_min = 1, 665 .periods_max = 1024, 666 .fifo_size = 0, 667 }; 668 669 static void snd_gf1_pcm_playback_free(struct snd_pcm_runtime *runtime) 670 { 671 kfree(runtime->private_data); 672 } 673 674 static int snd_gf1_pcm_playback_open(struct snd_pcm_substream *substream) 675 { 676 struct gus_pcm_private *pcmp; 677 struct snd_gus_card *gus = snd_pcm_substream_chip(substream); 678 struct snd_pcm_runtime *runtime = substream->runtime; 679 int err; 680 681 pcmp = kzalloc(sizeof(*pcmp), GFP_KERNEL); 682 if (pcmp == NULL) 683 return -ENOMEM; 684 pcmp->gus = gus; 685 spin_lock_init(&pcmp->lock); 686 init_waitqueue_head(&pcmp->sleep); 687 atomic_set(&pcmp->dma_count, 0); 688 689 runtime->private_data = pcmp; 690 runtime->private_free = snd_gf1_pcm_playback_free; 691 692 #if 0 693 printk(KERN_DEBUG "playback.buffer = 0x%lx, gf1.pcm_buffer = 0x%lx\n", 694 (long) pcm->playback.buffer, (long) gus->gf1.pcm_buffer); 695 #endif 696 if ((err = snd_gf1_dma_init(gus)) < 0) 697 return err; 698 pcmp->flags = SNDRV_GF1_PCM_PFLG_NONE; 699 pcmp->substream = substream; 700 runtime->hw = snd_gf1_pcm_playback; 701 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.buffer_bytes_max); 702 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.period_bytes_max); 703 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64); 704 return 0; 705 } 706 707 static int snd_gf1_pcm_playback_close(struct snd_pcm_substream *substream) 708 { 709 struct snd_gus_card *gus = snd_pcm_substream_chip(substream); 710 struct snd_pcm_runtime *runtime = substream->runtime; 711 struct gus_pcm_private *pcmp = runtime->private_data; 712 713 if (!wait_event_timeout(pcmp->sleep, (atomic_read(&pcmp->dma_count) <= 0), 2*HZ)) 714 snd_printk(KERN_ERR "gf1 pcm - serious DMA problem\n"); 715 716 snd_gf1_dma_done(gus); 717 return 0; 718 } 719 720 static int snd_gf1_pcm_capture_open(struct snd_pcm_substream *substream) 721 { 722 struct snd_pcm_runtime *runtime = substream->runtime; 723 struct snd_gus_card *gus = snd_pcm_substream_chip(substream); 724 725 gus->gf1.interrupt_handler_dma_read = snd_gf1_pcm_interrupt_dma_read; 726 gus->pcm_cap_substream = substream; 727 substream->runtime->hw = snd_gf1_pcm_capture; 728 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.buffer_bytes_max); 729 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.period_bytes_max); 730 snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 731 &hw_constraints_clocks); 732 return 0; 733 } 734 735 static int snd_gf1_pcm_capture_close(struct snd_pcm_substream *substream) 736 { 737 struct snd_gus_card *gus = snd_pcm_substream_chip(substream); 738 739 gus->pcm_cap_substream = NULL; 740 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_DMA_READ); 741 return 0; 742 } 743 744 static int snd_gf1_pcm_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 745 { 746 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 747 uinfo->count = 2; 748 uinfo->value.integer.min = 0; 749 uinfo->value.integer.max = 127; 750 return 0; 751 } 752 753 static int snd_gf1_pcm_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 754 { 755 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol); 756 unsigned long flags; 757 758 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags); 759 ucontrol->value.integer.value[0] = gus->gf1.pcm_volume_level_left1; 760 ucontrol->value.integer.value[1] = gus->gf1.pcm_volume_level_right1; 761 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags); 762 return 0; 763 } 764 765 static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 766 { 767 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol); 768 unsigned long flags; 769 int change; 770 unsigned int idx; 771 unsigned short val1, val2, vol; 772 struct gus_pcm_private *pcmp; 773 struct snd_gus_voice *pvoice; 774 775 val1 = ucontrol->value.integer.value[0] & 127; 776 val2 = ucontrol->value.integer.value[1] & 127; 777 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags); 778 change = val1 != gus->gf1.pcm_volume_level_left1 || 779 val2 != gus->gf1.pcm_volume_level_right1; 780 gus->gf1.pcm_volume_level_left1 = val1; 781 gus->gf1.pcm_volume_level_right1 = val2; 782 gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4; 783 gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4; 784 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags); 785 /* are we active? */ 786 spin_lock_irqsave(&gus->voice_alloc, flags); 787 for (idx = 0; idx < 32; idx++) { 788 pvoice = &gus->gf1.voices[idx]; 789 if (!pvoice->pcm) 790 continue; 791 pcmp = pvoice->private_data; 792 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE)) 793 continue; 794 /* load real volume - better precision */ 795 spin_lock(&gus->reg_lock); 796 snd_gf1_select_voice(gus, pvoice->number); 797 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL); 798 vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right; 799 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol); 800 pcmp->final_volume = 1; 801 spin_unlock(&gus->reg_lock); 802 } 803 spin_unlock_irqrestore(&gus->voice_alloc, flags); 804 return change; 805 } 806 807 static const struct snd_kcontrol_new snd_gf1_pcm_volume_control = 808 { 809 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 810 .name = "PCM Playback Volume", 811 .info = snd_gf1_pcm_volume_info, 812 .get = snd_gf1_pcm_volume_get, 813 .put = snd_gf1_pcm_volume_put 814 }; 815 816 static const struct snd_kcontrol_new snd_gf1_pcm_volume_control1 = 817 { 818 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 819 .name = "GPCM Playback Volume", 820 .info = snd_gf1_pcm_volume_info, 821 .get = snd_gf1_pcm_volume_get, 822 .put = snd_gf1_pcm_volume_put 823 }; 824 825 static struct snd_pcm_ops snd_gf1_pcm_playback_ops = { 826 .open = snd_gf1_pcm_playback_open, 827 .close = snd_gf1_pcm_playback_close, 828 .ioctl = snd_pcm_lib_ioctl, 829 .hw_params = snd_gf1_pcm_playback_hw_params, 830 .hw_free = snd_gf1_pcm_playback_hw_free, 831 .prepare = snd_gf1_pcm_playback_prepare, 832 .trigger = snd_gf1_pcm_playback_trigger, 833 .pointer = snd_gf1_pcm_playback_pointer, 834 .copy = snd_gf1_pcm_playback_copy, 835 .silence = snd_gf1_pcm_playback_silence, 836 }; 837 838 static struct snd_pcm_ops snd_gf1_pcm_capture_ops = { 839 .open = snd_gf1_pcm_capture_open, 840 .close = snd_gf1_pcm_capture_close, 841 .ioctl = snd_pcm_lib_ioctl, 842 .hw_params = snd_gf1_pcm_capture_hw_params, 843 .hw_free = snd_gf1_pcm_capture_hw_free, 844 .prepare = snd_gf1_pcm_capture_prepare, 845 .trigger = snd_gf1_pcm_capture_trigger, 846 .pointer = snd_gf1_pcm_capture_pointer, 847 }; 848 849 int snd_gf1_pcm_new(struct snd_gus_card *gus, int pcm_dev, int control_index) 850 { 851 struct snd_card *card; 852 struct snd_kcontrol *kctl; 853 struct snd_pcm *pcm; 854 struct snd_pcm_substream *substream; 855 int capture, err; 856 857 card = gus->card; 858 capture = !gus->interwave && !gus->ess_flag && !gus->ace_flag ? 1 : 0; 859 err = snd_pcm_new(card, 860 gus->interwave ? "AMD InterWave" : "GF1", 861 pcm_dev, 862 gus->gf1.pcm_channels / 2, 863 capture, 864 &pcm); 865 if (err < 0) 866 return err; 867 pcm->private_data = gus; 868 /* playback setup */ 869 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops); 870 871 for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next) 872 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV, 873 snd_dma_isa_data(), 874 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024); 875 876 pcm->info_flags = 0; 877 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; 878 if (capture) { 879 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_gf1_pcm_capture_ops); 880 if (gus->gf1.dma2 == gus->gf1.dma1) 881 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX; 882 snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, 883 SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(), 884 64*1024, gus->gf1.dma2 > 3 ? 128*1024 : 64*1024); 885 } 886 strcpy(pcm->name, pcm->id); 887 if (gus->interwave) { 888 sprintf(pcm->name + strlen(pcm->name), " rev %c", gus->revision + 'A'); 889 } 890 strcat(pcm->name, " (synth)"); 891 gus->pcm = pcm; 892 893 if (gus->codec_flag) 894 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control1, gus); 895 else 896 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control, gus); 897 if ((err = snd_ctl_add(card, kctl)) < 0) 898 return err; 899 kctl->id.index = control_index; 900 901 return 0; 902 } 903 904