usb/musb/musbhsdma.c

3  * MUSB OTG driver - support for Mentor's DMA controller
55 	struct musb_dma_controller	*controller;
65 	struct dma_controller		controller;
76 static void dma_controller_stop(struct musb_dma_controller *controller)
78 	struct musb *musb = controller->private_data;
82 	if (controller->used_channels != 0) {
83 		dev_err(musb->controller,
84 			"Stopping DMA controller while channel active\n");
87 			if (controller->used_channels & (1 << bit)) {
88 				channel = &controller->channel[bit].channel;
91 				if (!controller->used_channels)
101 	struct musb_dma_controller *controller = container_of(c,
102 			struct musb_dma_controller, controller);
108 		if (!(controller->used_channels & (1 << bit))) {
109 			controller->used_channels |= (1 << bit);
110 			musb_channel = &(controller->channel[bit]);
111 			musb_channel->controller = controller;
137 	musb_channel->controller->used_channels &=
148 	struct musb_dma_controller *controller = musb_channel->controller;
149 	struct musb *musb = controller->private_data;
150 	void __iomem *mbase = controller->base;
186 	struct musb_dma_controller *controller = musb_channel->controller;
187 	struct musb *musb = controller->private_data;
223 	void __iomem *mbase = musb_channel->controller->base;
224 	struct musb *musb = musb_channel->controller->private_data;
268 	struct musb_dma_controller *controller = private_data;
269 	struct musb *musb = controller->private_data;
273 	void __iomem *mbase = controller->base;
294 					&(controller->channel[bchannel]);
313 					&(controller->channel[bchannel]);
381 	struct musb_dma_controller *controller = container_of(c,
382 			struct musb_dma_controller, controller);
384 	dma_controller_stop(controller);
386 	if (controller->irq)
387 		free_irq(controller->irq, c);
389 	kfree(controller);
396 	struct musb_dma_controller *controller;
398 	controller = kzalloc(sizeof(*controller), GFP_KERNEL);
399 	if (!controller)
402 	controller->channel_count = MUSB_HSDMA_CHANNELS;
403 	controller->private_data = musb;
404 	controller->base = base;
406 	controller->controller.channel_alloc = dma_channel_allocate;
407 	controller->controller.channel_release = dma_channel_release;
408 	controller->controller.channel_program = dma_channel_program;
409 	controller->controller.channel_abort = dma_channel_abort;
410 	return controller;
416 	struct musb_dma_controller *controller;
417 	struct device *dev = musb->controller;
426 	controller = dma_controller_alloc(musb, base);
427 	if (!controller)
431 			dev_name(musb->controller), controller)) {
433 		musb_dma_controller_destroy(&controller->controller);
438 	controller->irq = irq;
440 	return &controller->controller;
447 	struct musb_dma_controller *controller;
449 	controller = dma_controller_alloc(musb, base);
450 	if (!controller)
453 	return &controller->controller;