Lines Matching refs:amd
347 /* Idle the AMD7930 chip. The amd->lock is not held. */
348 static __inline__ void amd7930_idle(struct snd_amd7930 *amd)
352 spin_lock_irqsave(&amd->lock, flags);
353 sbus_writeb(AMR_INIT, amd->regs + AMD7930_CR);
354 sbus_writeb(0, amd->regs + AMD7930_DR);
355 spin_unlock_irqrestore(&amd->lock, flags);
358 /* Enable chip interrupts. The amd->lock is not held. */
359 static __inline__ void amd7930_enable_ints(struct snd_amd7930 *amd)
363 spin_lock_irqsave(&amd->lock, flags);
364 sbus_writeb(AMR_INIT, amd->regs + AMD7930_CR);
365 sbus_writeb(AM_INIT_ACTIVE, amd->regs + AMD7930_DR);
366 spin_unlock_irqrestore(&amd->lock, flags);
369 /* Disable chip interrupts. The amd->lock is not held. */
370 static __inline__ void amd7930_disable_ints(struct snd_amd7930 *amd)
374 spin_lock_irqsave(&amd->lock, flags);
375 sbus_writeb(AMR_INIT, amd->regs + AMD7930_CR);
376 sbus_writeb(AM_INIT_ACTIVE | AM_INIT_DISABLE_INTS, amd->regs + AMD7930_DR);
377 spin_unlock_irqrestore(&amd->lock, flags);
381 * The amd->lock is held and local interrupts are disabled.
383 static void __amd7930_write_map(struct snd_amd7930 *amd)
385 struct amd7930_map *map = &amd->map;
387 sbus_writeb(AMR_MAP_GX, amd->regs + AMD7930_CR);
388 sbus_writeb(((map->gx >> 0) & 0xff), amd->regs + AMD7930_DR);
389 sbus_writeb(((map->gx >> 8) & 0xff), amd->regs + AMD7930_DR);
391 sbus_writeb(AMR_MAP_GR, amd->regs + AMD7930_CR);
392 sbus_writeb(((map->gr >> 0) & 0xff), amd->regs + AMD7930_DR);
393 sbus_writeb(((map->gr >> 8) & 0xff), amd->regs + AMD7930_DR);
395 sbus_writeb(AMR_MAP_STGR, amd->regs + AMD7930_CR);
396 sbus_writeb(((map->stgr >> 0) & 0xff), amd->regs + AMD7930_DR);
397 sbus_writeb(((map->stgr >> 8) & 0xff), amd->regs + AMD7930_DR);
399 sbus_writeb(AMR_MAP_GER, amd->regs + AMD7930_CR);
400 sbus_writeb(((map->ger >> 0) & 0xff), amd->regs + AMD7930_DR);
401 sbus_writeb(((map->ger >> 8) & 0xff), amd->regs + AMD7930_DR);
403 sbus_writeb(AMR_MAP_MMR1, amd->regs + AMD7930_CR);
404 sbus_writeb(map->mmr1, amd->regs + AMD7930_DR);
406 sbus_writeb(AMR_MAP_MMR2, amd->regs + AMD7930_CR);
407 sbus_writeb(map->mmr2, amd->regs + AMD7930_DR);
475 * The amd->lock is held and local interrupts are disabled.
477 static void __amd7930_update_map(struct snd_amd7930 *amd)
479 struct amd7930_map *map = &amd->map;
482 map->gx = gx_coeff[amd->rgain];
483 map->stgr = gx_coeff[amd->mgain];
484 level = (amd->pgain * (256 + ARRAY_SIZE(ger_coeff))) >> 8;
492 __amd7930_write_map(amd);
497 struct snd_amd7930 *amd = dev_id;
501 spin_lock(&amd->lock);
505 ir = sbus_readb(amd->regs + AMD7930_IR);
509 if (amd->flags & AMD7930_FLAG_PLAYBACK) {
510 if (amd->p_left > 0) {
511 byte = *(amd->p_cur++);
512 amd->p_left--;
513 sbus_writeb(byte, amd->regs + AMD7930_BBTB);
514 if (amd->p_left == 0)
517 sbus_writeb(0, amd->regs + AMD7930_BBTB);
518 } else if (amd->flags & AMD7930_FLAG_CAPTURE) {
519 byte = sbus_readb(amd->regs + AMD7930_BBRB);
520 if (amd->c_left > 0) {
521 *(amd->c_cur++) = byte;
522 amd->c_left--;
523 if (amd->c_left == 0)
528 spin_unlock(&amd->lock);
531 snd_pcm_period_elapsed(amd->playback_substream);
533 snd_pcm_period_elapsed(amd->capture_substream);
538 static int snd_amd7930_trigger(struct snd_amd7930 *amd, unsigned int flag, int cmd)
543 spin_lock_irqsave(&amd->lock, flags);
545 if (!(amd->flags & flag)) {
546 amd->flags |= flag;
549 sbus_writeb(AMR_MUX_MCR4, amd->regs + AMD7930_CR);
550 sbus_writeb(AM_MUX_MCR4_ENABLE_INTS, amd->regs + AMD7930_DR);
553 if (amd->flags & flag) {
554 amd->flags &= ~flag;
557 sbus_writeb(AMR_MUX_MCR4, amd->regs + AMD7930_CR);
558 sbus_writeb(0, amd->regs + AMD7930_DR);
563 spin_unlock_irqrestore(&amd->lock, flags);
571 struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);
572 return snd_amd7930_trigger(amd, AMD7930_FLAG_PLAYBACK, cmd);
578 struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);
579 return snd_amd7930_trigger(amd, AMD7930_FLAG_CAPTURE, cmd);
584 struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);
590 spin_lock_irqsave(&amd->lock, flags);
592 amd->flags |= AMD7930_FLAG_PLAYBACK;
595 amd->p_orig = amd->p_cur = runtime->dma_area;
596 amd->p_left = size;
599 new_mmr1 = amd->map.mmr1;
604 if (new_mmr1 != amd->map.mmr1) {
605 amd->map.mmr1 = new_mmr1;
606 __amd7930_update_map(amd);
609 spin_unlock_irqrestore(&amd->lock, flags);
616 struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);
622 spin_lock_irqsave(&amd->lock, flags);
624 amd->flags |= AMD7930_FLAG_CAPTURE;
627 amd->c_orig = amd->c_cur = runtime->dma_area;
628 amd->c_left = size;
631 new_mmr1 = amd->map.mmr1;
636 if (new_mmr1 != amd->map.mmr1) {
637 amd->map.mmr1 = new_mmr1;
638 __amd7930_update_map(amd);
641 spin_unlock_irqrestore(&amd->lock, flags);
648 struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);
651 if (!(amd->flags & AMD7930_FLAG_PLAYBACK))
653 ptr = amd->p_cur - amd->p_orig;
659 struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);
662 if (!(amd->flags & AMD7930_FLAG_CAPTURE))
665 ptr = amd->c_cur - amd->c_orig;
692 struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);
695 amd->playback_substream = substream;
702 struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);
705 amd->capture_substream = substream;
712 struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);
714 amd->playback_substream = NULL;
720 struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);
722 amd->capture_substream = NULL;
742 static int snd_amd7930_pcm(struct snd_amd7930 *amd)
747 if ((err = snd_pcm_new(amd->card,
757 pcm->private_data = amd;
759 strcpy(pcm->name, amd->card->shortname);
760 amd->pcm = pcm;
784 struct snd_amd7930 *amd = snd_kcontrol_chip(kctl);
790 swval = &amd->mgain;
793 swval = &amd->rgain;
797 swval = &amd->pgain;
808 struct snd_amd7930 *amd = snd_kcontrol_chip(kctl);
815 swval = &amd->mgain;
818 swval = &amd->rgain;
822 swval = &amd->pgain;
826 spin_lock_irqsave(&amd->lock, flags);
830 __amd7930_update_map(amd);
835 spin_unlock_irqrestore(&amd->lock, flags);
870 static int snd_amd7930_mixer(struct snd_amd7930 *amd)
875 if (snd_BUG_ON(!amd || !amd->card))
878 card = amd->card;
883 snd_ctl_new1(&amd7930_controls[idx], amd))) < 0)
890 static int snd_amd7930_free(struct snd_amd7930 *amd)
892 struct platform_device *op = amd->op;
894 amd7930_idle(amd);
896 if (amd->irq)
897 free_irq(amd->irq, amd);
899 if (amd->regs)
900 of_iounmap(&op->resource[0], amd->regs,
903 kfree(amd);
910 struct snd_amd7930 *amd = device->device_data;
912 return snd_amd7930_free(amd);
924 struct snd_amd7930 *amd;
929 amd = kzalloc(sizeof(*amd), GFP_KERNEL);
930 if (amd == NULL)
933 spin_lock_init(&amd->lock);
934 amd->card = card;
935 amd->op = op;
937 amd->regs = of_ioremap(&op->resource[0], 0,
939 if (!amd->regs) {
942 kfree(amd);
946 amd7930_idle(amd);
949 IRQF_SHARED, "amd7930", amd)) {
952 snd_amd7930_free(amd);
955 amd->irq = irq;
957 amd7930_enable_ints(amd);
959 spin_lock_irqsave(&amd->lock, flags);
961 amd->rgain = 128;
962 amd->pgain = 200;
963 amd->mgain = 0;
965 memset(&amd->map, 0, sizeof(amd->map));
966 amd->map.mmr1 = (AM_MAP_MMR1_GX | AM_MAP_MMR1_GER |
968 amd->map.mmr2 = (AM_MAP_MMR2_LS | AM_MAP_MMR2_AINB);
970 __amd7930_update_map(amd);
973 sbus_writeb(AMR_MUX_MCR1, amd->regs + AMD7930_CR);
975 amd->regs + AMD7930_DR);
977 spin_unlock_irqrestore(&amd->lock, flags);
980 amd, &snd_amd7930_dev_ops)) < 0) {
981 snd_amd7930_free(amd);
985 *ramd = amd;
994 struct snd_amd7930 *amd;
1020 irq, dev_num, &amd)) < 0)
1023 if ((err = snd_amd7930_pcm(amd)) < 0)
1026 if ((err = snd_amd7930_mixer(amd)) < 0)
1032 amd->next = amd7930_list;
1033 amd7930_list = amd;