3  * MUSB OTG driver - support for Mentor's DMA controller
55 	struct musb_dma_controller	*controller;  member
65 	struct dma_controller		controller;  member
76 static void dma_controller_stop(struct musb_dma_controller *controller)  in dma_controller_stop()  argument
78 	struct musb *musb = controller->private_data;  in dma_controller_stop()
82 	if (controller->used_channels != 0) {  in dma_controller_stop()
83 		dev_err(musb->controller,  in dma_controller_stop()
84 			"Stopping DMA controller while channel active\n");  in dma_controller_stop()
87 			if (controller->used_channels & (1 << bit)) {  in dma_controller_stop()
88 				channel = &controller->channel[bit].channel;  in dma_controller_stop()
91 				if (!controller->used_channels)  in dma_controller_stop()
101 	struct musb_dma_controller *controller = container_of(c,  in dma_channel_allocate()  local
102 			struct musb_dma_controller, controller);  in dma_channel_allocate()
108 		if (!(controller->used_channels & (1 << bit))) {  in dma_channel_allocate()
109 			controller->used_channels |= (1 << bit);  in dma_channel_allocate()
110 			musb_channel = &(controller->channel[bit]);  in dma_channel_allocate()
111 			musb_channel->controller = controller;  in dma_channel_allocate()
137 	musb_channel->controller->used_channels &=  in dma_channel_release()
148 	struct musb_dma_controller *controller = musb_channel->controller;  in configure_channel()  local
149 	struct musb *musb = controller->private_data;  in configure_channel()
150 	void __iomem *mbase = controller->base;  in configure_channel()
186 	struct musb_dma_controller *controller = musb_channel->controller;  in dma_channel_program()  local
187 	struct musb *musb = controller->private_data;  in dma_channel_program()
223 	void __iomem *mbase = musb_channel->controller->base;  in dma_channel_abort()
224 	struct musb *musb = musb_channel->controller->private_data;  in dma_channel_abort()
268 	struct musb_dma_controller *controller = private_data;  in dma_controller_irq()  local
269 	struct musb *musb = controller->private_data;  in dma_controller_irq()
273 	void __iomem *mbase = controller->base;  in dma_controller_irq()
294 					&(controller->channel[bchannel]);  in dma_controller_irq()
313 					&(controller->channel[bchannel]);  in dma_controller_irq()
385 	struct musb_dma_controller *controller = container_of(c,  in musbhs_dma_controller_destroy()  local
386 			struct musb_dma_controller, controller);  in musbhs_dma_controller_destroy()
388 	dma_controller_stop(controller);  in musbhs_dma_controller_destroy()
390 	if (controller->irq)  in musbhs_dma_controller_destroy()
391 		free_irq(controller->irq, c);  in musbhs_dma_controller_destroy()
393 	kfree(controller);  in musbhs_dma_controller_destroy()
400 	struct musb_dma_controller *controller;  in dma_controller_alloc()  local
402 	controller = kzalloc(sizeof(*controller), GFP_KERNEL);  in dma_controller_alloc()
403 	if (!controller)  in dma_controller_alloc()
406 	controller->channel_count = MUSB_HSDMA_CHANNELS;  in dma_controller_alloc()
407 	controller->private_data = musb;  in dma_controller_alloc()
408 	controller->base = base;  in dma_controller_alloc()
410 	controller->controller.channel_alloc = dma_channel_allocate;  in dma_controller_alloc()
411 	controller->controller.channel_release = dma_channel_release;  in dma_controller_alloc()
412 	controller->controller.channel_program = dma_channel_program;  in dma_controller_alloc()
413 	controller->controller.channel_abort = dma_channel_abort;  in dma_controller_alloc()
414 	return controller;  in dma_controller_alloc()
420 	struct musb_dma_controller *controller;  in musbhs_dma_controller_create()  local
421 	struct device *dev = musb->controller;  in musbhs_dma_controller_create()
430 	controller = dma_controller_alloc(musb, base);  in musbhs_dma_controller_create()
431 	if (!controller)  in musbhs_dma_controller_create()
435 			dev_name(musb->controller), controller)) {  in musbhs_dma_controller_create()
437 		musb_dma_controller_destroy(&controller->controller);  in musbhs_dma_controller_create()
442 	controller->irq = irq;  in musbhs_dma_controller_create()
444 	return &controller->controller;  in musbhs_dma_controller_create()
451 	struct musb_dma_controller *controller;  in musbhs_dma_controller_create_noirq()  local
453 	controller = dma_controller_alloc(musb, base);  in musbhs_dma_controller_create_noirq()
454 	if (!controller)  in musbhs_dma_controller_create_noirq()
457 	return &controller->controller;  in musbhs_dma_controller_create_noirq()