347 static __inline__ void amd7930_idle(struct snd_amd7930 *amd)  in amd7930_idle()  argument
351 	spin_lock_irqsave(&amd->lock, flags);  in amd7930_idle()
352 	sbus_writeb(AMR_INIT, amd->regs + AMD7930_CR);  in amd7930_idle()
353 	sbus_writeb(0, amd->regs + AMD7930_DR);  in amd7930_idle()
354 	spin_unlock_irqrestore(&amd->lock, flags);  in amd7930_idle()
358 static __inline__ void amd7930_enable_ints(struct snd_amd7930 *amd)  in amd7930_enable_ints()  argument
362 	spin_lock_irqsave(&amd->lock, flags);  in amd7930_enable_ints()
363 	sbus_writeb(AMR_INIT, amd->regs + AMD7930_CR);  in amd7930_enable_ints()
364 	sbus_writeb(AM_INIT_ACTIVE, amd->regs + AMD7930_DR);  in amd7930_enable_ints()
365 	spin_unlock_irqrestore(&amd->lock, flags);  in amd7930_enable_ints()
369 static __inline__ void amd7930_disable_ints(struct snd_amd7930 *amd)  in amd7930_disable_ints()  argument
373 	spin_lock_irqsave(&amd->lock, flags);  in amd7930_disable_ints()
374 	sbus_writeb(AMR_INIT, amd->regs + AMD7930_CR);  in amd7930_disable_ints()
375 	sbus_writeb(AM_INIT_ACTIVE | AM_INIT_DISABLE_INTS, amd->regs + AMD7930_DR);  in amd7930_disable_ints()
376 	spin_unlock_irqrestore(&amd->lock, flags);  in amd7930_disable_ints()
382 static void __amd7930_write_map(struct snd_amd7930 *amd)  in __amd7930_write_map()  argument
384 	struct amd7930_map *map = &amd->map;  in __amd7930_write_map()
386 	sbus_writeb(AMR_MAP_GX, amd->regs + AMD7930_CR);  in __amd7930_write_map()
387 	sbus_writeb(((map->gx >> 0) & 0xff), amd->regs + AMD7930_DR);  in __amd7930_write_map()
388 	sbus_writeb(((map->gx >> 8) & 0xff), amd->regs + AMD7930_DR);  in __amd7930_write_map()
390 	sbus_writeb(AMR_MAP_GR, amd->regs + AMD7930_CR);  in __amd7930_write_map()
391 	sbus_writeb(((map->gr >> 0) & 0xff), amd->regs + AMD7930_DR);  in __amd7930_write_map()
392 	sbus_writeb(((map->gr >> 8) & 0xff), amd->regs + AMD7930_DR);  in __amd7930_write_map()
394 	sbus_writeb(AMR_MAP_STGR, amd->regs + AMD7930_CR);  in __amd7930_write_map()
395 	sbus_writeb(((map->stgr >> 0) & 0xff), amd->regs + AMD7930_DR);  in __amd7930_write_map()
396 	sbus_writeb(((map->stgr >> 8) & 0xff), amd->regs + AMD7930_DR);  in __amd7930_write_map()
398 	sbus_writeb(AMR_MAP_GER, amd->regs + AMD7930_CR);  in __amd7930_write_map()
399 	sbus_writeb(((map->ger >> 0) & 0xff), amd->regs + AMD7930_DR);  in __amd7930_write_map()
400 	sbus_writeb(((map->ger >> 8) & 0xff), amd->regs + AMD7930_DR);  in __amd7930_write_map()
402 	sbus_writeb(AMR_MAP_MMR1, amd->regs + AMD7930_CR);  in __amd7930_write_map()
403 	sbus_writeb(map->mmr1, amd->regs + AMD7930_DR);  in __amd7930_write_map()
405 	sbus_writeb(AMR_MAP_MMR2, amd->regs + AMD7930_CR);  in __amd7930_write_map()
406 	sbus_writeb(map->mmr2, amd->regs + AMD7930_DR);  in __amd7930_write_map()
476 static void __amd7930_update_map(struct snd_amd7930 *amd)  in __amd7930_update_map()  argument
478 	struct amd7930_map *map = &amd->map;  in __amd7930_update_map()
481 	map->gx = gx_coeff[amd->rgain];  in __amd7930_update_map()
482 	map->stgr = gx_coeff[amd->mgain];  in __amd7930_update_map()
483 	level = (amd->pgain * (256 + ARRAY_SIZE(ger_coeff))) >> 8;  in __amd7930_update_map()
491 	__amd7930_write_map(amd);  in __amd7930_update_map()
496 	struct snd_amd7930 *amd = dev_id;  in snd_amd7930_interrupt()  local
500 	spin_lock(&amd->lock);  in snd_amd7930_interrupt()
504 	ir = sbus_readb(amd->regs + AMD7930_IR);  in snd_amd7930_interrupt()
508 		if (amd->flags & AMD7930_FLAG_PLAYBACK) {  in snd_amd7930_interrupt()
509 			if (amd->p_left > 0) {  in snd_amd7930_interrupt()
510 				byte = *(amd->p_cur++);  in snd_amd7930_interrupt()
511 				amd->p_left--;  in snd_amd7930_interrupt()
512 				sbus_writeb(byte, amd->regs + AMD7930_BBTB);  in snd_amd7930_interrupt()
513 				if (amd->p_left == 0)  in snd_amd7930_interrupt()
516 				sbus_writeb(0, amd->regs + AMD7930_BBTB);  in snd_amd7930_interrupt()
517 		} else if (amd->flags & AMD7930_FLAG_CAPTURE) {  in snd_amd7930_interrupt()
518 			byte = sbus_readb(amd->regs + AMD7930_BBRB);  in snd_amd7930_interrupt()
519 			if (amd->c_left > 0) {  in snd_amd7930_interrupt()
520 				*(amd->c_cur++) = byte;  in snd_amd7930_interrupt()
521 				amd->c_left--;  in snd_amd7930_interrupt()
522 				if (amd->c_left == 0)  in snd_amd7930_interrupt()
527 	spin_unlock(&amd->lock);  in snd_amd7930_interrupt()
530 		snd_pcm_period_elapsed(amd->playback_substream);  in snd_amd7930_interrupt()
532 		snd_pcm_period_elapsed(amd->capture_substream);  in snd_amd7930_interrupt()
537 static int snd_amd7930_trigger(struct snd_amd7930 *amd, unsigned int flag, int cmd)  in snd_amd7930_trigger()  argument
542 	spin_lock_irqsave(&amd->lock, flags);  in snd_amd7930_trigger()
544 		if (!(amd->flags & flag)) {  in snd_amd7930_trigger()
545 			amd->flags |= flag;  in snd_amd7930_trigger()
548 			sbus_writeb(AMR_MUX_MCR4, amd->regs + AMD7930_CR);  in snd_amd7930_trigger()
549 			sbus_writeb(AM_MUX_MCR4_ENABLE_INTS, amd->regs + AMD7930_DR);  in snd_amd7930_trigger()
552 		if (amd->flags & flag) {  in snd_amd7930_trigger()
553 			amd->flags &= ~flag;  in snd_amd7930_trigger()
556 			sbus_writeb(AMR_MUX_MCR4, amd->regs + AMD7930_CR);  in snd_amd7930_trigger()
557 			sbus_writeb(0, amd->regs + AMD7930_DR);  in snd_amd7930_trigger()
562 	spin_unlock_irqrestore(&amd->lock, flags);  in snd_amd7930_trigger()
570 	struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);  in snd_amd7930_playback_trigger()  local
571 	return snd_amd7930_trigger(amd, AMD7930_FLAG_PLAYBACK, cmd);  in snd_amd7930_playback_trigger()
577 	struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);  in snd_amd7930_capture_trigger()  local
578 	return snd_amd7930_trigger(amd, AMD7930_FLAG_CAPTURE, cmd);  in snd_amd7930_capture_trigger()
583 	struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);  in snd_amd7930_playback_prepare()  local
589 	spin_lock_irqsave(&amd->lock, flags);  in snd_amd7930_playback_prepare()
591 	amd->flags |= AMD7930_FLAG_PLAYBACK;  in snd_amd7930_playback_prepare()
594 	amd->p_orig = amd->p_cur = runtime->dma_area;  in snd_amd7930_playback_prepare()
595 	amd->p_left = size;  in snd_amd7930_playback_prepare()
598 	new_mmr1 = amd->map.mmr1;  in snd_amd7930_playback_prepare()
603 	if (new_mmr1 != amd->map.mmr1) {  in snd_amd7930_playback_prepare()
604 		amd->map.mmr1 = new_mmr1;  in snd_amd7930_playback_prepare()
605 		__amd7930_update_map(amd);  in snd_amd7930_playback_prepare()
608 	spin_unlock_irqrestore(&amd->lock, flags);  in snd_amd7930_playback_prepare()
615 	struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);  in snd_amd7930_capture_prepare()  local
621 	spin_lock_irqsave(&amd->lock, flags);  in snd_amd7930_capture_prepare()
623 	amd->flags |= AMD7930_FLAG_CAPTURE;  in snd_amd7930_capture_prepare()
626 	amd->c_orig = amd->c_cur = runtime->dma_area;  in snd_amd7930_capture_prepare()
627 	amd->c_left = size;  in snd_amd7930_capture_prepare()
630 	new_mmr1 = amd->map.mmr1;  in snd_amd7930_capture_prepare()
635 	if (new_mmr1 != amd->map.mmr1) {  in snd_amd7930_capture_prepare()
636 		amd->map.mmr1 = new_mmr1;  in snd_amd7930_capture_prepare()
637 		__amd7930_update_map(amd);  in snd_amd7930_capture_prepare()
640 	spin_unlock_irqrestore(&amd->lock, flags);  in snd_amd7930_capture_prepare()
647 	struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);  in snd_amd7930_playback_pointer()  local
650 	if (!(amd->flags & AMD7930_FLAG_PLAYBACK))  in snd_amd7930_playback_pointer()
652 	ptr = amd->p_cur - amd->p_orig;  in snd_amd7930_playback_pointer()
658 	struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);  in snd_amd7930_capture_pointer()  local
661 	if (!(amd->flags & AMD7930_FLAG_CAPTURE))  in snd_amd7930_capture_pointer()
664 	ptr = amd->c_cur - amd->c_orig;  in snd_amd7930_capture_pointer()
691 	struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);  in snd_amd7930_playback_open()  local
694 	amd->playback_substream = substream;  in snd_amd7930_playback_open()
701 	struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);  in snd_amd7930_capture_open()  local
704 	amd->capture_substream = substream;  in snd_amd7930_capture_open()
711 	struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);  in snd_amd7930_playback_close()  local
713 	amd->playback_substream = NULL;  in snd_amd7930_playback_close()
719 	struct snd_amd7930 *amd = snd_pcm_substream_chip(substream);  in snd_amd7930_capture_close()  local
721 	amd->capture_substream = NULL;  in snd_amd7930_capture_close()
758 static int __devinit snd_amd7930_pcm(struct snd_amd7930 *amd)  in snd_amd7930_pcm()  argument
763 	if ((err = snd_pcm_new(amd->card,  in snd_amd7930_pcm()
773 	pcm->private_data = amd;  in snd_amd7930_pcm()
775 	strcpy(pcm->name, amd->card->shortname);  in snd_amd7930_pcm()
776 	amd->pcm = pcm;  in snd_amd7930_pcm()
801 	struct snd_amd7930 *amd = snd_kcontrol_chip(kctl);  in snd_amd7930_get_volume()  local
807 		swval = &amd->mgain;  in snd_amd7930_get_volume()
810 		swval = &amd->rgain;  in snd_amd7930_get_volume()
814 		swval = &amd->pgain;  in snd_amd7930_get_volume()
825 	struct snd_amd7930 *amd = snd_kcontrol_chip(kctl);  in snd_amd7930_put_volume()  local
832 		swval = &amd->mgain;  in snd_amd7930_put_volume()
835 		swval = &amd->rgain;  in snd_amd7930_put_volume()
839 		swval = &amd->pgain;  in snd_amd7930_put_volume()
843 	spin_lock_irqsave(&amd->lock, flags);  in snd_amd7930_put_volume()
847 		__amd7930_update_map(amd);  in snd_amd7930_put_volume()
852 	spin_unlock_irqrestore(&amd->lock, flags);  in snd_amd7930_put_volume()
887 static int __devinit snd_amd7930_mixer(struct snd_amd7930 *amd)  in snd_amd7930_mixer()  argument
892 	if (snd_BUG_ON(!amd || !amd->card))  in snd_amd7930_mixer()
895 	card = amd->card;  in snd_amd7930_mixer()
900 				       snd_ctl_new1(&amd7930_controls[idx], amd))) < 0)  in snd_amd7930_mixer()
907 static int snd_amd7930_free(struct snd_amd7930 *amd)  in snd_amd7930_free()  argument
909 	struct platform_device *op = amd->op;  in snd_amd7930_free()
911 	amd7930_idle(amd);  in snd_amd7930_free()
913 	if (amd->irq)  in snd_amd7930_free()
914 		free_irq(amd->irq, amd);  in snd_amd7930_free()
916 	if (amd->regs)  in snd_amd7930_free()
917 		of_iounmap(&op->resource[0], amd->regs,  in snd_amd7930_free()
920 	kfree(amd);  in snd_amd7930_free()
927 	struct snd_amd7930 *amd = device->device_data;  in snd_amd7930_dev_free()  local
929 	return snd_amd7930_free(amd);  in snd_amd7930_dev_free()
941 	struct snd_amd7930 *amd;  in snd_amd7930_create()  local
946 	amd = kzalloc(sizeof(*amd), GFP_KERNEL);  in snd_amd7930_create()
947 	if (amd == NULL)  in snd_amd7930_create()
950 	spin_lock_init(&amd->lock);  in snd_amd7930_create()
951 	amd->card = card;  in snd_amd7930_create()
952 	amd->op = op;  in snd_amd7930_create()
954 	amd->regs = of_ioremap(&op->resource[0], 0,  in snd_amd7930_create()
956 	if (!amd->regs) {  in snd_amd7930_create()
962 	amd7930_idle(amd);  in snd_amd7930_create()
965 			IRQF_DISABLED | IRQF_SHARED, "amd7930", amd)) {  in snd_amd7930_create()
968 		snd_amd7930_free(amd);  in snd_amd7930_create()
971 	amd->irq = irq;  in snd_amd7930_create()
973 	amd7930_enable_ints(amd);  in snd_amd7930_create()
975 	spin_lock_irqsave(&amd->lock, flags);  in snd_amd7930_create()
977 	amd->rgain = 128;  in snd_amd7930_create()
978 	amd->pgain = 200;  in snd_amd7930_create()
979 	amd->mgain = 0;  in snd_amd7930_create()
981 	memset(&amd->map, 0, sizeof(amd->map));  in snd_amd7930_create()
982 	amd->map.mmr1 = (AM_MAP_MMR1_GX | AM_MAP_MMR1_GER |  in snd_amd7930_create()
984 	amd->map.mmr2 = (AM_MAP_MMR2_LS | AM_MAP_MMR2_AINB);  in snd_amd7930_create()
986 	__amd7930_update_map(amd);  in snd_amd7930_create()
989 	sbus_writeb(AMR_MUX_MCR1, amd->regs + AMD7930_CR);  in snd_amd7930_create()
991 		    amd->regs + AMD7930_DR);  in snd_amd7930_create()
993 	spin_unlock_irqrestore(&amd->lock, flags);  in snd_amd7930_create()
996 				  amd, &snd_amd7930_dev_ops)) < 0) {  in snd_amd7930_create()
997 		snd_amd7930_free(amd);  in snd_amd7930_create()
1001 	*ramd = amd;  in snd_amd7930_create()
1010 	struct snd_amd7930 *amd;  in amd7930_sbus_probe()  local
1036 				      irq, dev_num, &amd)) < 0)  in amd7930_sbus_probe()
1039 	if ((err = snd_amd7930_pcm(amd)) < 0)  in amd7930_sbus_probe()
1042 	if ((err = snd_amd7930_mixer(amd)) < 0)  in amd7930_sbus_probe()
1048 	amd->next = amd7930_list;  in amd7930_sbus_probe()
1049 	amd7930_list = amd;  in amd7930_sbus_probe()