54 	struct dma_channel		channel;  member
66 	struct musb_dma_channel		channel[MUSB_HSDMA_CHANNELS];  member
74 static void dma_channel_release(struct dma_channel *channel);
79 	struct dma_channel *channel;  in dma_controller_stop()  local
84 			"Stopping DMA controller while channel active\n");  in dma_controller_stop()
88 				channel = &controller->channel[bit].channel;  in dma_controller_stop()
89 				dma_channel_release(channel);  in dma_controller_stop()
104 	struct dma_channel *channel = NULL;  in dma_channel_allocate()  local
110 			musb_channel = &(controller->channel[bit]);  in dma_channel_allocate()
115 			channel = &(musb_channel->channel);  in dma_channel_allocate()
116 			channel->private_data = musb_channel;  in dma_channel_allocate()
117 			channel->status = MUSB_DMA_STATUS_FREE;  in dma_channel_allocate()
118 			channel->max_len = 0x100000;  in dma_channel_allocate()
120 			channel->desired_mode = transmit;  in dma_channel_allocate()
121 			channel->actual_len = 0;  in dma_channel_allocate()
126 	return channel;  in dma_channel_allocate()
129 static void dma_channel_release(struct dma_channel *channel)  in dma_channel_release()  argument
131 	struct musb_dma_channel *musb_channel = channel->private_data;  in dma_channel_release()
133 	channel->actual_len = 0;  in dma_channel_release()
140 	channel->status = MUSB_DMA_STATUS_UNKNOWN;  in dma_channel_release()
143 static void configure_channel(struct dma_channel *channel,  in configure_channel()  argument
147 	struct musb_dma_channel *musb_channel = channel->private_data;  in configure_channel()
155 			channel, packet_sz, &dma_addr, len, mode);  in configure_channel()
181 static int dma_channel_program(struct dma_channel *channel,  in dma_channel_program()  argument
185 	struct musb_dma_channel *musb_channel = channel->private_data;  in dma_channel_program()
194 	BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN ||  in dma_channel_program()
195 		channel->status == MUSB_DMA_STATUS_BUSY);  in dma_channel_program()
209 	channel->actual_len = 0;  in dma_channel_program()
213 	channel->status = MUSB_DMA_STATUS_BUSY;  in dma_channel_program()
215 	configure_channel(channel, packet_sz, mode, dma_addr, len);  in dma_channel_program()
220 static int dma_channel_abort(struct dma_channel *channel)  in dma_channel_abort()  argument
222 	struct musb_dma_channel *musb_channel = channel->private_data;  in dma_channel_abort()
230 	if (channel->status == MUSB_DMA_STATUS_BUSY) {  in dma_channel_abort()
260 		channel->status = MUSB_DMA_STATUS_FREE;  in dma_channel_abort()
271 	struct dma_channel *channel;  in dma_controller_irq()  local
294 					&(controller->channel[bchannel]);  in dma_controller_irq()
295 			channel = &musb_channel->channel;  in dma_controller_irq()
296 			if (channel->status == MUSB_DMA_STATUS_BUSY) {  in dma_controller_irq()
313 					&(controller->channel[bchannel]);  in dma_controller_irq()
314 			channel = &musb_channel->channel;  in dma_controller_irq()
321 				musb_channel->channel.status =  in dma_controller_irq()
326 				channel->actual_len = addr  in dma_controller_irq()
330 					channel, musb_channel->start_addr,  in dma_controller_irq()
331 					addr, channel->actual_len,  in dma_controller_irq()
333 					(channel->actual_len  in dma_controller_irq()
337 				channel->status = MUSB_DMA_STATUS_FREE;  in dma_controller_irq()
341 					(!channel->desired_mode ||  in dma_controller_irq()
342 					(channel->actual_len %  in dma_controller_irq()
355 					if (channel->desired_mode == 1) {  in dma_controller_irq()