351 struct ichdev {  struct
394 	struct ichdev ichd[6];  argument
677 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev)   in snd_intel8x0_setup_periods()  argument
680 	__le32 *bdbar = ichdev->bdbar;  in snd_intel8x0_setup_periods()
681 	unsigned long port = ichdev->reg_offset;  in snd_intel8x0_setup_periods()
683 	iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);  in snd_intel8x0_setup_periods()
684 	if (ichdev->size == ichdev->fragsize) {  in snd_intel8x0_setup_periods()
685 		ichdev->ack_reload = ichdev->ack = 2;  in snd_intel8x0_setup_periods()
686 		ichdev->fragsize1 = ichdev->fragsize >> 1;  in snd_intel8x0_setup_periods()
688 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);  in snd_intel8x0_setup_periods()
690 						     ichdev->fragsize1 >> ichdev->pos_shift);  in snd_intel8x0_setup_periods()
691 			bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));  in snd_intel8x0_setup_periods()
693 						     ichdev->fragsize1 >> ichdev->pos_shift);  in snd_intel8x0_setup_periods()
695 		ichdev->frags = 2;  in snd_intel8x0_setup_periods()
697 		ichdev->ack_reload = ichdev->ack = 1;  in snd_intel8x0_setup_periods()
698 		ichdev->fragsize1 = ichdev->fragsize;  in snd_intel8x0_setup_periods()
700 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +  in snd_intel8x0_setup_periods()
701 						     (((idx >> 1) * ichdev->fragsize) %  in snd_intel8x0_setup_periods()
702 						      ichdev->size));  in snd_intel8x0_setup_periods()
704 						     ichdev->fragsize >> ichdev->pos_shift);  in snd_intel8x0_setup_periods()
710 		ichdev->frags = ichdev->size / ichdev->fragsize;  in snd_intel8x0_setup_periods()
712 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);  in snd_intel8x0_setup_periods()
713 	ichdev->civ = 0;  in snd_intel8x0_setup_periods()
715 	ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;  in snd_intel8x0_setup_periods()
716 	ichdev->position = 0;  in snd_intel8x0_setup_periods()
720 	       ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,  in snd_intel8x0_setup_periods()
721 	       ichdev->fragsize1);  in snd_intel8x0_setup_periods()
724 	iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);  in snd_intel8x0_setup_periods()
750 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)  in snd_intel8x0_update()  argument
752 	unsigned long port = ichdev->reg_offset;  in snd_intel8x0_update()
758 	status = igetbyte(chip, port + ichdev->roff_sr);  in snd_intel8x0_update()
762 	} else if (civ == ichdev->civ) {  in snd_intel8x0_update()
765 		ichdev->civ++;  in snd_intel8x0_update()
766 		ichdev->civ &= ICH_REG_LVI_MASK;  in snd_intel8x0_update()
768 		step = civ - ichdev->civ;  in snd_intel8x0_update()
773 		ichdev->civ = civ;  in snd_intel8x0_update()
776 	ichdev->position += step * ichdev->fragsize1;  in snd_intel8x0_update()
778 		ichdev->position %= ichdev->size;  in snd_intel8x0_update()
779 	ichdev->lvi += step;  in snd_intel8x0_update()
780 	ichdev->lvi &= ICH_REG_LVI_MASK;  in snd_intel8x0_update()
781 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);  in snd_intel8x0_update()
783 		ichdev->lvi_frag++;  in snd_intel8x0_update()
784 		ichdev->lvi_frag %= ichdev->frags;  in snd_intel8x0_update()
785 …ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize…  in snd_intel8x0_update()
789 	       ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],  in snd_intel8x0_update()
790 	       ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),  in snd_intel8x0_update()
793 		if (--ichdev->ack == 0) {  in snd_intel8x0_update()
794 			ichdev->ack = ichdev->ack_reload;  in snd_intel8x0_update()
799 	if (ack && ichdev->substream) {  in snd_intel8x0_update()
800 		snd_pcm_period_elapsed(ichdev->substream);  in snd_intel8x0_update()
802 	iputbyte(chip, port + ichdev->roff_sr,  in snd_intel8x0_update()
809 	struct ichdev *ichdev;  in snd_intel8x0_interrupt()  local
828 		ichdev = &chip->ichd[i];  in snd_intel8x0_interrupt()
829 		if (status & ichdev->int_sta_mask)  in snd_intel8x0_interrupt()
830 			snd_intel8x0_update(chip, ichdev);  in snd_intel8x0_interrupt()
846 	struct ichdev *ichdev = get_ichdev(substream);  in snd_intel8x0_pcm_trigger()  local
848 	unsigned long port = ichdev->reg_offset;  in snd_intel8x0_pcm_trigger()
852 		ichdev->suspended = 0;  in snd_intel8x0_pcm_trigger()
857 		ichdev->last_pos = ichdev->position;  in snd_intel8x0_pcm_trigger()
860 		ichdev->suspended = 1;  in snd_intel8x0_pcm_trigger()
874 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;  in snd_intel8x0_pcm_trigger()
884 	struct ichdev *ichdev = get_ichdev(substream);  in snd_intel8x0_ali_trigger()  local
885 	unsigned long port = ichdev->reg_offset;  in snd_intel8x0_ali_trigger()
894 		ichdev->suspended = 0;  in snd_intel8x0_ali_trigger()
900 			fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);  in snd_intel8x0_ali_trigger()
901 			fifo &= ~(0xff << (ichdev->ali_slot % 4));    in snd_intel8x0_ali_trigger()
902 			fifo |= 0x83 << (ichdev->ali_slot % 4);   in snd_intel8x0_ali_trigger()
903 			iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);  in snd_intel8x0_ali_trigger()
906 		val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */  in snd_intel8x0_ali_trigger()
908 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));  in snd_intel8x0_ali_trigger()
911 		ichdev->suspended = 1;  in snd_intel8x0_ali_trigger()
916 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));  in snd_intel8x0_ali_trigger()
928 			  igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);  in snd_intel8x0_ali_trigger()
940 	struct ichdev *ichdev = get_ichdev(substream);  in snd_intel8x0_hw_params()  local
945 	if (chip->fix_nocache && ichdev->page_attr_changed) {  in snd_intel8x0_hw_params()
947 		ichdev->page_attr_changed = 0;  in snd_intel8x0_hw_params()
953 		if (runtime->dma_area && ! ichdev->page_attr_changed) {  in snd_intel8x0_hw_params()
955 			ichdev->page_attr_changed = 1;  in snd_intel8x0_hw_params()
958 	if (ichdev->pcm_open_flag) {  in snd_intel8x0_hw_params()
959 		snd_ac97_pcm_close(ichdev->pcm);  in snd_intel8x0_hw_params()
960 		ichdev->pcm_open_flag = 0;  in snd_intel8x0_hw_params()
962 	err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),  in snd_intel8x0_hw_params()
964 				ichdev->pcm->r[dbl].slots);  in snd_intel8x0_hw_params()
966 		ichdev->pcm_open_flag = 1;  in snd_intel8x0_hw_params()
968 		if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)  in snd_intel8x0_hw_params()
969 			snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,  in snd_intel8x0_hw_params()
978 	struct ichdev *ichdev = get_ichdev(substream);  in snd_intel8x0_hw_free()  local
980 	if (ichdev->pcm_open_flag) {  in snd_intel8x0_hw_free()
981 		snd_ac97_pcm_close(ichdev->pcm);  in snd_intel8x0_hw_free()
982 		ichdev->pcm_open_flag = 0;  in snd_intel8x0_hw_free()
984 	if (chip->fix_nocache && ichdev->page_attr_changed) {  in snd_intel8x0_hw_free()
986 		ichdev->page_attr_changed = 0;  in snd_intel8x0_hw_free()
1050 	struct ichdev *ichdev = get_ichdev(substream);  in snd_intel8x0_pcm_prepare()  local
1052 	ichdev->physbuf = runtime->dma_addr;  in snd_intel8x0_pcm_prepare()
1053 	ichdev->size = snd_pcm_lib_buffer_bytes(substream);  in snd_intel8x0_pcm_prepare()
1054 	ichdev->fragsize = snd_pcm_lib_period_bytes(substream);  in snd_intel8x0_pcm_prepare()
1055 	if (ichdev->ichd == ICHD_PCMOUT) {  in snd_intel8x0_pcm_prepare()
1058 			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;  in snd_intel8x0_pcm_prepare()
1060 	snd_intel8x0_setup_periods(chip, ichdev);  in snd_intel8x0_pcm_prepare()
1067 	struct ichdev *ichdev = get_ichdev(substream);  in snd_intel8x0_pcm_pointer()  local
1074 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);  in snd_intel8x0_pcm_pointer()
1075 		ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);  in snd_intel8x0_pcm_pointer()
1076 		position = ichdev->position;  in snd_intel8x0_pcm_pointer()
1081 		if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV))  in snd_intel8x0_pcm_pointer()
1092 		if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))  in snd_intel8x0_pcm_pointer()
1095 	ptr = ichdev->last_pos;  in snd_intel8x0_pcm_pointer()
1097 		ptr1 <<= ichdev->pos_shift;  in snd_intel8x0_pcm_pointer()
1098 		ptr = ichdev->fragsize1 - ptr1;  in snd_intel8x0_pcm_pointer()
1100 		if (ptr < ichdev->last_pos) {  in snd_intel8x0_pcm_pointer()
1102 			pos_base = position / ichdev->fragsize1;  in snd_intel8x0_pcm_pointer()
1103 			last_base = ichdev->last_pos / ichdev->fragsize1;  in snd_intel8x0_pcm_pointer()
1108 				ptr = ichdev->last_pos;  in snd_intel8x0_pcm_pointer()
1111 	ichdev->last_pos = ptr;  in snd_intel8x0_pcm_pointer()
1113 	if (ptr >= ichdev->size)  in snd_intel8x0_pcm_pointer()
1169 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)  in snd_intel8x0_pcm_open()  argument
1175 	ichdev->substream = substream;  in snd_intel8x0_pcm_open()
1177 	runtime->hw.rates = ichdev->pcm->rates;  in snd_intel8x0_pcm_open()
1185 	runtime->private_data = ichdev;  in snd_intel8x0_pcm_open()
2663 			struct ichdev *ichdev = &chip->ichd[i];  in intel8x0_suspend()  local
2664 			if (ichdev->substream && ichdev->page_attr_changed) {  in intel8x0_suspend()
2665 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;  in intel8x0_suspend()
2721 			struct ichdev *ichdev = &chip->ichd[i];  in intel8x0_resume()  local
2722 			if (ichdev->substream && ichdev->page_attr_changed) {  in intel8x0_resume()
2723 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;  in intel8x0_resume()
2732 		struct ichdev *ichdev = &chip->ichd[i];  in intel8x0_resume()  local
2733 		unsigned long port = ichdev->reg_offset;  in intel8x0_resume()
2734 		if (! ichdev->substream || ! ichdev->suspended)  in intel8x0_resume()
2736 		if (ichdev->ichd == ICHD_PCMOUT)  in intel8x0_resume()
2737 			snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);  in intel8x0_resume()
2738 		iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);  in intel8x0_resume()
2739 		iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);  in intel8x0_resume()
2740 		iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);  in intel8x0_resume()
2741 		iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);  in intel8x0_resume()
2759 	struct ichdev *ichdev;  in intel8x0_measure_ac97_clock()  local
2775 	ichdev = &chip->ichd[ICHD_PCMOUT];  in intel8x0_measure_ac97_clock()
2776 	ichdev->physbuf = subs->dma_buffer.addr;  in intel8x0_measure_ac97_clock()
2777 	ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;  in intel8x0_measure_ac97_clock()
2778 	ichdev->substream = NULL; /* don't process interrupts */  in intel8x0_measure_ac97_clock()
2786 	snd_intel8x0_setup_periods(chip, ichdev);  in intel8x0_measure_ac97_clock()
2787 	port = ichdev->reg_offset;  in intel8x0_measure_ac97_clock()
2795 		iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);  in intel8x0_measure_ac97_clock()
2803 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);  in intel8x0_measure_ac97_clock()
2804 		pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);  in intel8x0_measure_ac97_clock()
2809 		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&  in intel8x0_measure_ac97_clock()
2810 		    pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))  in intel8x0_measure_ac97_clock()
2816 		pos = ichdev->fragsize1;  in intel8x0_measure_ac97_clock()
2817 		pos -= pos1 << ichdev->pos_shift;  in intel8x0_measure_ac97_clock()
2818 		pos += ichdev->position;  in intel8x0_measure_ac97_clock()
2824 		iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));  in intel8x0_measure_ac97_clock()
2830 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))  in intel8x0_measure_ac97_clock()
3000 	struct ichdev *ichdev;  in snd_intel8x0_create()  local
3111 		ichdev = &chip->ichd[i];  in snd_intel8x0_create()
3112 		ichdev->ichd = i;  in snd_intel8x0_create()
3113 		ichdev->reg_offset = tbl[i].offset;  in snd_intel8x0_create()
3114 		ichdev->int_sta_mask = tbl[i].int_sta_mask;  in snd_intel8x0_create()
3117 			ichdev->roff_sr = ICH_REG_OFF_PICB;  in snd_intel8x0_create()
3118 			ichdev->roff_picb = ICH_REG_OFF_SR;  in snd_intel8x0_create()
3120 			ichdev->roff_sr = ICH_REG_OFF_SR;  in snd_intel8x0_create()
3121 			ichdev->roff_picb = ICH_REG_OFF_PICB;  in snd_intel8x0_create()
3124 			ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;  in snd_intel8x0_create()
3126 		ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;  in snd_intel8x0_create()
3145 		ichdev = &chip->ichd[i];  in snd_intel8x0_create()
3146 		ichdev->bdbar = ((__le32 *)chip->bdbars.area) +  in snd_intel8x0_create()
3148 		ichdev->bdbar_addr = chip->bdbars.addr +  in snd_intel8x0_create()
3150 		int_sta_masks |= ichdev->int_sta_mask;  in snd_intel8x0_create()