46 static void dma_channel_release(struct dma_channel *channel);
53 	struct dma_channel *channel;  in dma_controller_stop()  local
62 				channel = &controller->channel[bit].channel;  in dma_controller_stop()
63 				dma_channel_release(channel);  in dma_controller_stop()
80 	struct dma_channel *channel = NULL;  in dma_channel_allocate()  local
86 			musb_channel = &(controller->channel[bit]);  in dma_channel_allocate()
91 			channel = &(musb_channel->channel);  in dma_channel_allocate()
92 			channel->private_data = musb_channel;  in dma_channel_allocate()
93 			channel->status = MUSB_DMA_STATUS_FREE;  in dma_channel_allocate()
94 			channel->max_len = 0x100000;  in dma_channel_allocate()
96 			channel->desired_mode = transmit;  in dma_channel_allocate()
97 			channel->actual_len = 0;  in dma_channel_allocate()
102 	return channel;  in dma_channel_allocate()
105 static void dma_channel_release(struct dma_channel *channel)  in dma_channel_release()  argument
107 	struct musb_dma_channel *musb_channel = channel->private_data;  in dma_channel_release()
109 	channel->actual_len = 0;  in dma_channel_release()
116 	channel->status = MUSB_DMA_STATUS_UNKNOWN;  in dma_channel_release()
119 static void configure_channel(struct dma_channel *channel,  in configure_channel()  argument
123 	struct musb_dma_channel *musb_channel = channel->private_data;  in configure_channel()
131 			channel, packet_sz, dma_addr, len, mode);  in configure_channel()
157 static int dma_channel_program(struct dma_channel *channel,  in dma_channel_program()  argument
161 	struct musb_dma_channel *musb_channel = channel->private_data;  in dma_channel_program()
170 	BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN ||  in dma_channel_program()
171 		channel->status == MUSB_DMA_STATUS_BUSY);  in dma_channel_program()
175 		int ret = musb->ops->adjust_channel_params(channel,  in dma_channel_program()
193 	channel->actual_len = 0;  in dma_channel_program()
197 	channel->status = MUSB_DMA_STATUS_BUSY;  in dma_channel_program()
199 	configure_channel(channel, packet_sz, mode, dma_addr, len);  in dma_channel_program()
204 static int dma_channel_abort(struct dma_channel *channel)  in dma_channel_abort()  argument
206 	struct musb_dma_channel *musb_channel = channel->private_data;  in dma_channel_abort()
213 	if (channel->status == MUSB_DMA_STATUS_BUSY) {  in dma_channel_abort()
243 		channel->status = MUSB_DMA_STATUS_FREE;  in dma_channel_abort()
254 	struct dma_channel *channel;  in dma_controller_irq()  local
282 					&(controller->channel[bchannel]);  in dma_controller_irq()
283 			channel = &musb_channel->channel;  in dma_controller_irq()
284 			if (channel->status == MUSB_DMA_STATUS_BUSY) {  in dma_controller_irq()
301 					&(controller->channel[bchannel]);  in dma_controller_irq()
302 			channel = &musb_channel->channel;  in dma_controller_irq()
309 				musb_channel->channel.status =  in dma_controller_irq()
316 				channel->actual_len = addr  in dma_controller_irq()
320 					channel, musb_channel->start_addr,  in dma_controller_irq()
321 					addr, channel->actual_len,  in dma_controller_irq()
323 					(channel->actual_len  in dma_controller_irq()
329 				channel->status = MUSB_DMA_STATUS_FREE;  in dma_controller_irq()
334 					&& ((channel->desired_mode == 0)  in dma_controller_irq()
335 					    || (channel->actual_len &  in dma_controller_irq()