atmel_usba_udc: move endpoint declarations into platform data.

The atmel_usba_udc driver is being used by several platforms and arches
(avr32 and at91 ATM), and each platform may have different endpoint
settings.

The patch below moves the endpoint declarations into the platform
data and make the necessary adjustments for AVR32 (improved by
Haavard Skinnemoen <hskinnemoen@atmel.com>).

Signed-off-by: Stelian Pop <stelian@popies.net>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

1 files changed, 38 insertions, 33 deletions

diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index 39d187fb038..71d3c5171f8 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -18,6 +18,7 @@
 #include <linux/platform_device.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
+#include <linux/usb/atmel_usba_udc.h>
 #include <linux/delay.h>
 
 #include <asm/gpio.h>
@@ -27,6 +28,7 @@
 
 
 static struct usba_udc the_udc;
+static struct usba_ep *usba_ep;
 
 #ifdef CONFIG_USB_GADGET_DEBUG_FS
 #include <linux/debugfs.h>
@@ -982,33 +984,6 @@ static const struct usb_gadget_ops usba_udc_ops = {
 	.set_selfpowered	= usba_udc_set_selfpowered,
 };
 
-#define EP(nam, idx, maxpkt, maxbk, dma, isoc)			\
-{								\
-	.ep	= {						\
-		.ops		= &usba_ep_ops,			\
-		.name		= nam,				\
-		.maxpacket	= maxpkt,			\
-	},							\
-	.udc		= &the_udc,				\
-	.queue		= LIST_HEAD_INIT(usba_ep[idx].queue),	\
-	.fifo_size	= maxpkt,				\
-	.nr_banks	= maxbk,				\
-	.index		= idx,					\
-	.can_dma	= dma,					\
-	.can_isoc	= isoc,					\
-}
-
-static struct usba_ep usba_ep[] = {
-	EP("ep0",     0,   64, 1, 0, 0),
-	EP("ep1",     1,  512, 2, 1, 1),
-	EP("ep2",     2,  512, 2, 1, 1),
-	EP("ep3-int", 3,   64, 3, 1, 0),
-	EP("ep4-int", 4,   64, 3, 1, 0),
-	EP("ep5",     5, 1024, 3, 1, 1),
-	EP("ep6",     6, 1024, 3, 1, 1),
-};
-#undef EP
-
 static struct usb_endpoint_descriptor usba_ep0_desc = {
 	.bLength = USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType = USB_DT_ENDPOINT,
@@ -1027,7 +1002,6 @@ static void nop_release(struct device *dev)
 static struct usba_udc the_udc = {
 	.gadget	= {
 		.ops		= &usba_udc_ops,
-		.ep0		= &usba_ep[0].ep,
 		.ep_list	= LIST_HEAD_INIT(the_udc.gadget.ep_list),
 		.is_dualspeed	= 1,
 		.name		= "atmel_usba_udc",
@@ -1861,7 +1835,7 @@ static int __init usba_udc_probe(struct platform_device *pdev)
 
 	regs = platform_get_resource(pdev, IORESOURCE_MEM, CTRL_IOMEM_ID);
 	fifo = platform_get_resource(pdev, IORESOURCE_MEM, FIFO_IOMEM_ID);
-	if (!regs || !fifo)
+	if (!regs || !fifo || !pdata)
 		return -ENXIO;
 
 	irq = platform_get_irq(pdev, 0);
@@ -1909,16 +1883,44 @@ static int __init usba_udc_probe(struct platform_device *pdev)
 	usba_writel(udc, CTRL, 0);
 	clk_disable(pclk);
 
+	usba_ep = kmalloc(sizeof(struct usba_ep) * pdata->num_ep,
+			  GFP_KERNEL);
+	if (!usba_ep)
+		goto err_alloc_ep;
+
+	the_udc.gadget.ep0 = &usba_ep[0].ep;
+
 	INIT_LIST_HEAD(&usba_ep[0].ep.ep_list);
 	usba_ep[0].ep_regs = udc->regs + USBA_EPT_BASE(0);
 	usba_ep[0].dma_regs = udc->regs + USBA_DMA_BASE(0);
 	usba_ep[0].fifo = udc->fifo + USBA_FIFO_BASE(0);
-	for (i = 1; i < ARRAY_SIZE(usba_ep); i++) {
+	usba_ep[0].ep.ops = &usba_ep_ops;
+	usba_ep[0].ep.name = pdata->ep[0].name;
+	usba_ep[0].ep.maxpacket = pdata->ep[0].fifo_size;
+	usba_ep[0].udc = &the_udc;
+	INIT_LIST_HEAD(&usba_ep[0].queue);
+	usba_ep[0].fifo_size = pdata->ep[0].fifo_size;
+	usba_ep[0].nr_banks = pdata->ep[0].nr_banks;
+	usba_ep[0].index = pdata->ep[0].index;
+	usba_ep[0].can_dma = pdata->ep[0].can_dma;
+	usba_ep[0].can_isoc = pdata->ep[0].can_isoc;
+
+	for (i = 1; i < pdata->num_ep; i++) {
 		struct usba_ep *ep = &usba_ep[i];
 
 		ep->ep_regs = udc->regs + USBA_EPT_BASE(i);
 		ep->dma_regs = udc->regs + USBA_DMA_BASE(i);
 		ep->fifo = udc->fifo + USBA_FIFO_BASE(i);
+		ep->ep.ops = &usba_ep_ops;
+		ep->ep.name = pdata->ep[i].name;
+		ep->ep.maxpacket = pdata->ep[i].fifo_size;
+		ep->udc = &the_udc;
+		INIT_LIST_HEAD(&ep->queue);
+		ep->fifo_size = pdata->ep[i].fifo_size;
+		ep->nr_banks = pdata->ep[i].nr_banks;
+		ep->index = pdata->ep[i].index;
+		ep->can_dma = pdata->ep[i].can_dma;
+		ep->can_isoc = pdata->ep[i].can_isoc;
 
 		list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
 	}
@@ -1937,7 +1939,7 @@ static int __init usba_udc_probe(struct platform_device *pdev)
 		goto err_device_add;
 	}
 
-	if (pdata && pdata->vbus_pin >= 0) {
+	if (pdata->vbus_pin >= 0) {
 		if (!gpio_request(pdata->vbus_pin, "atmel_usba_udc")) {
 			udc->vbus_pin = pdata->vbus_pin;
 
@@ -1957,7 +1959,7 @@ static int __init usba_udc_probe(struct platform_device *pdev)
 	}
 
 	usba_init_debugfs(udc);
-	for (i = 1; i < ARRAY_SIZE(usba_ep); i++)
+	for (i = 1; i < pdata->num_ep; i++)
 		usba_ep_init_debugfs(udc, &usba_ep[i]);
 
 	return 0;
@@ -1965,6 +1967,8 @@ static int __init usba_udc_probe(struct platform_device *pdev)
 err_device_add:
 	free_irq(irq, udc);
 err_request_irq:
+	kfree(usba_ep);
+err_alloc_ep:
 	iounmap(udc->fifo);
 err_map_fifo:
 	iounmap(udc->regs);
@@ -1982,10 +1986,11 @@ static int __exit usba_udc_remove(struct platform_device *pdev)
 {
 	struct usba_udc *udc;
 	int i;
+	struct usba_platform_data *pdata = pdev->dev.platform_data;
 
 	udc = platform_get_drvdata(pdev);
 
-	for (i = 1; i < ARRAY_SIZE(usba_ep); i++)
+	for (i = 1; i < pdata->num_ep; i++)
 		usba_ep_cleanup_debugfs(&usba_ep[i]);
 	usba_cleanup_debugfs(udc);