Lines Matching refs:ichdev
153 struct ichdev {
191 struct ichdev ichd[2];
380 static void snd_intel8x0m_setup_periods(struct intel8x0m *chip, struct ichdev *ichdev)
383 __le32 *bdbar = ichdev->bdbar;
384 unsigned long port = ichdev->reg_offset;
386 iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
387 if (ichdev->size == ichdev->fragsize) {
388 ichdev->ack_reload = ichdev->ack = 2;
389 ichdev->fragsize1 = ichdev->fragsize >> 1;
391 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
393 ichdev->fragsize1 >> chip->pcm_pos_shift);
394 bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
396 ichdev->fragsize1 >> chip->pcm_pos_shift);
398 ichdev->frags = 2;
400 ichdev->ack_reload = ichdev->ack = 1;
401 ichdev->fragsize1 = ichdev->fragsize;
403 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + (((idx >> 1) * ichdev->fragsize) % ichdev->size));
405 ichdev->fragsize >> chip->pcm_pos_shift);
411 ichdev->frags = ichdev->size / ichdev->fragsize;
413 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
414 ichdev->civ = 0;
416 ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
417 ichdev->position = 0;
421 ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
422 ichdev->fragsize1);
425 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
432 static inline void snd_intel8x0m_update(struct intel8x0m *chip, struct ichdev *ichdev)
434 unsigned long port = ichdev->reg_offset;
439 if (civ == ichdev->civ) {
442 ichdev->civ++;
443 ichdev->civ &= ICH_REG_LVI_MASK;
445 step = civ - ichdev->civ;
449 // snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
450 ichdev->civ = civ;
453 ichdev->position += step * ichdev->fragsize1;
454 ichdev->position %= ichdev->size;
455 ichdev->lvi += step;
456 ichdev->lvi &= ICH_REG_LVI_MASK;
457 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
459 ichdev->lvi_frag++;
460 ichdev->lvi_frag %= ichdev->frags;
461 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf +
462 ichdev->lvi_frag *
463 ichdev->fragsize1);
467 ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
468 ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
471 if (--ichdev->ack == 0) {
472 ichdev->ack = ichdev->ack_reload;
476 if (ack && ichdev->substream) {
478 snd_pcm_period_elapsed(ichdev->substream);
481 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
487 struct ichdev *ichdev;
505 ichdev = &chip->ichd[i];
506 if (status & ichdev->int_sta_mask)
507 snd_intel8x0m_update(chip, ichdev);
524 struct ichdev *ichdev = get_ichdev(substream);
526 unsigned long port = ichdev->reg_offset;
549 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
559 struct ichdev *ichdev = get_ichdev(substream);
562 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << chip->pcm_pos_shift;
564 ptr = ichdev->fragsize1 - ptr1;
567 ptr += ichdev->position;
568 if (ptr >= ichdev->size)
577 struct ichdev *ichdev = get_ichdev(substream);
579 ichdev->physbuf = runtime->dma_addr;
580 ichdev->size = snd_pcm_lib_buffer_bytes(substream);
581 ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
582 snd_ac97_write(ichdev->ac97, AC97_LINE1_RATE, runtime->rate);
583 snd_ac97_write(ichdev->ac97, AC97_LINE1_LEVEL, 0);
584 snd_intel8x0m_setup_periods(chip, ichdev);
610 static int snd_intel8x0m_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
621 ichdev->substream = substream;
627 runtime->private_data = ichdev;
1081 struct ichdev *ichdev;
1144 ichdev = &chip->ichd[i];
1145 ichdev->ichd = i;
1146 ichdev->reg_offset = tbl[i].offset;
1147 ichdev->int_sta_mask = tbl[i].int_sta_mask;
1150 ichdev->roff_sr = ICH_REG_OFF_PICB;
1151 ichdev->roff_picb = ICH_REG_OFF_SR;
1153 ichdev->roff_sr = ICH_REG_OFF_SR;
1154 ichdev->roff_picb = ICH_REG_OFF_PICB;
1157 ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
1174 ichdev = &chip->ichd[i];
1175 ichdev->bdbar = ((__le32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2);
1176 ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
1177 int_sta_masks |= ichdev->int_sta_mask;