Lines Matching refs:ichdev
138 struct ichdev {
176 struct ichdev ichd[2];
366 static void snd_intel8x0m_setup_periods(struct intel8x0m *chip, struct ichdev *ichdev)
369 __le32 *bdbar = ichdev->bdbar;
370 unsigned long port = ichdev->reg_offset;
372 iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
373 if (ichdev->size == ichdev->fragsize) {
374 ichdev->ack_reload = ichdev->ack = 2;
375 ichdev->fragsize1 = ichdev->fragsize >> 1;
377 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
379 ichdev->fragsize1 >> chip->pcm_pos_shift);
380 bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
382 ichdev->fragsize1 >> chip->pcm_pos_shift);
384 ichdev->frags = 2;
386 ichdev->ack_reload = ichdev->ack = 1;
387 ichdev->fragsize1 = ichdev->fragsize;
389 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + (((idx >> 1) * ichdev->fragsize) % ichdev->size));
391 ichdev->fragsize >> chip->pcm_pos_shift);
397 ichdev->frags = ichdev->size / ichdev->fragsize;
399 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
400 ichdev->civ = 0;
402 ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
403 ichdev->position = 0;
407 ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
408 ichdev->fragsize1);
411 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
418 static inline void snd_intel8x0m_update(struct intel8x0m *chip, struct ichdev *ichdev)
420 unsigned long port = ichdev->reg_offset;
425 if (civ == ichdev->civ) {
428 ichdev->civ++;
429 ichdev->civ &= ICH_REG_LVI_MASK;
431 step = civ - ichdev->civ;
435 // snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
436 ichdev->civ = civ;
439 ichdev->position += step * ichdev->fragsize1;
440 ichdev->position %= ichdev->size;
441 ichdev->lvi += step;
442 ichdev->lvi &= ICH_REG_LVI_MASK;
443 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
445 ichdev->lvi_frag++;
446 ichdev->lvi_frag %= ichdev->frags;
447 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf +
448 ichdev->lvi_frag *
449 ichdev->fragsize1);
453 ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
454 ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
457 if (--ichdev->ack == 0) {
458 ichdev->ack = ichdev->ack_reload;
462 if (ack && ichdev->substream) {
464 snd_pcm_period_elapsed(ichdev->substream);
467 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
473 struct ichdev *ichdev;
491 ichdev = &chip->ichd[i];
492 if (status & ichdev->int_sta_mask)
493 snd_intel8x0m_update(chip, ichdev);
510 struct ichdev *ichdev = get_ichdev(substream);
512 unsigned long port = ichdev->reg_offset;
535 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
545 struct ichdev *ichdev = get_ichdev(substream);
548 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << chip->pcm_pos_shift;
550 ptr = ichdev->fragsize1 - ptr1;
553 ptr += ichdev->position;
554 if (ptr >= ichdev->size)
563 struct ichdev *ichdev = get_ichdev(substream);
565 ichdev->physbuf = runtime->dma_addr;
566 ichdev->size = snd_pcm_lib_buffer_bytes(substream);
567 ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
568 snd_ac97_write(ichdev->ac97, AC97_LINE1_RATE, runtime->rate);
569 snd_ac97_write(ichdev->ac97, AC97_LINE1_LEVEL, 0);
570 snd_intel8x0m_setup_periods(chip, ichdev);
596 static int snd_intel8x0m_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
607 ichdev->substream = substream;
613 runtime->private_data = ichdev;
1054 struct ichdev *ichdev;
1094 ichdev = &chip->ichd[i];
1095 ichdev->ichd = i;
1096 ichdev->reg_offset = tbl[i].offset;
1097 ichdev->int_sta_mask = tbl[i].int_sta_mask;
1100 ichdev->roff_sr = ICH_REG_OFF_PICB;
1101 ichdev->roff_picb = ICH_REG_OFF_SR;
1103 ichdev->roff_sr = ICH_REG_OFF_SR;
1104 ichdev->roff_picb = ICH_REG_OFF_PICB;
1107 ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
1124 ichdev = &chip->ichd[i];
1125 ichdev->bdbar = ((__le32 *)chip->bdbars->area) + (i * ICH_MAX_FRAGS * 2);
1126 ichdev->bdbar_addr = chip->bdbars->addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
1127 int_sta_masks |= ichdev->int_sta_mask;