70 	unsigned long val;  in nuc900_dma_start()  local
72 	val = AUDIO_READ(nuc900_audio->mmio + ACTL_CON);  in nuc900_dma_start()
73 	val |= (T_DMA_IRQ | R_DMA_IRQ);  in nuc900_dma_start()
74 	AUDIO_WRITE(nuc900_audio->mmio + ACTL_CON, val);  in nuc900_dma_start()
81 	unsigned long val;  in nuc900_dma_stop()  local
83 	val = AUDIO_READ(nuc900_audio->mmio + ACTL_CON);  in nuc900_dma_stop()
84 	val &= ~(T_DMA_IRQ | R_DMA_IRQ);  in nuc900_dma_stop()
85 	AUDIO_WRITE(nuc900_audio->mmio + ACTL_CON, val);  in nuc900_dma_stop()
92 	unsigned long val;  in nuc900_dma_interrupt()  local
96 	val = AUDIO_READ(nuc900_audio->mmio + ACTL_CON);  in nuc900_dma_interrupt()
98 	if (val & R_DMA_IRQ) {  in nuc900_dma_interrupt()
99 		AUDIO_WRITE(nuc900_audio->mmio + ACTL_CON, val | R_DMA_IRQ);  in nuc900_dma_interrupt()
101 		val = AUDIO_READ(nuc900_audio->mmio + ACTL_RSR);  in nuc900_dma_interrupt()
103 		if (val & R_DMA_MIDDLE_IRQ) {  in nuc900_dma_interrupt()
104 			val |= R_DMA_MIDDLE_IRQ;  in nuc900_dma_interrupt()
105 			AUDIO_WRITE(nuc900_audio->mmio + ACTL_RSR, val);  in nuc900_dma_interrupt()
108 		if (val & R_DMA_END_IRQ) {  in nuc900_dma_interrupt()
109 			val |= R_DMA_END_IRQ;  in nuc900_dma_interrupt()
110 			AUDIO_WRITE(nuc900_audio->mmio + ACTL_RSR, val);  in nuc900_dma_interrupt()
112 	} else if (val & T_DMA_IRQ) {  in nuc900_dma_interrupt()
113 		AUDIO_WRITE(nuc900_audio->mmio + ACTL_CON, val | T_DMA_IRQ);  in nuc900_dma_interrupt()
115 		val = AUDIO_READ(nuc900_audio->mmio + ACTL_PSR);  in nuc900_dma_interrupt()
117 		if (val & P_DMA_MIDDLE_IRQ) {  in nuc900_dma_interrupt()
118 			val |= P_DMA_MIDDLE_IRQ;  in nuc900_dma_interrupt()
119 			AUDIO_WRITE(nuc900_audio->mmio + ACTL_PSR, val);  in nuc900_dma_interrupt()
122 		if (val & P_DMA_END_IRQ) {  in nuc900_dma_interrupt()
123 			val |= P_DMA_END_IRQ;  in nuc900_dma_interrupt()
124 			AUDIO_WRITE(nuc900_audio->mmio + ACTL_PSR, val);  in nuc900_dma_interrupt()
149 	unsigned long flags, val;  in nuc900_dma_prepare()  local
156 	val = AUDIO_READ(nuc900_audio->mmio + ACTL_RESET);  in nuc900_dma_prepare()
161 			val &= ~(PLAY_LEFT_CHNNEL | PLAY_RIGHT_CHNNEL);  in nuc900_dma_prepare()
162 			val |= PLAY_RIGHT_CHNNEL;  in nuc900_dma_prepare()
164 			val &= ~(RECORD_LEFT_CHNNEL | RECORD_RIGHT_CHNNEL);  in nuc900_dma_prepare()
165 			val |= RECORD_RIGHT_CHNNEL;  in nuc900_dma_prepare()
167 		AUDIO_WRITE(nuc900_audio->mmio + ACTL_RESET, val);  in nuc900_dma_prepare()
171 			val |= (PLAY_LEFT_CHNNEL | PLAY_RIGHT_CHNNEL);  in nuc900_dma_prepare()
173 			val |= (RECORD_LEFT_CHNNEL | RECORD_RIGHT_CHNNEL);  in nuc900_dma_prepare()
174 		AUDIO_WRITE(nuc900_audio->mmio + ACTL_RESET, val);  in nuc900_dma_prepare()