#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/irq.h>
+#include <linux/clk.h>
+#include <linux/err.h>
#include <asm/byteorder.h>
#include <asm/dma.h>
#include <asm/hardware.h>
#include <linux/usb/ch9.h>
-#include <linux/usb_gadget.h>
+#include <linux/usb/gadget.h>
#include <asm/mach/udc_pxa2xx.h>
static const char ep0name [] = "ep0";
-// #define DISABLE_TEST_MODE
-
#ifdef CONFIG_ARCH_IXP4XX
/* cpu-specific register addresses are compiled in to this code */
#define SIZE_STR ""
#endif
-#ifdef DISABLE_TEST_MODE
-/* (mode == 0) == no undocumented chip tweaks
- * (mode & 1) == double buffer bulk IN
- * (mode & 2) == double buffer bulk OUT
- * ... so mode = 3 (or 7, 15, etc) does it for both
- */
-static ushort fifo_mode = 0;
-module_param(fifo_mode, ushort, 0);
-MODULE_PARM_DESC (fifo_mode, "pxa2xx udc fifo mode");
-#endif
-
/* ---------------------------------------------------------------------------
* endpoint related parts of the api to the usb controller hardware,
* used by gadget driver; and the inner talker-to-hardware core.
{
struct pxa2xx_udc_mach_info *mach = the_controller->mach;
- if (mach->gpio_vbus)
- return gpio_get_value(mach->gpio_vbus);
+ if (mach->gpio_vbus) {
+ int value = gpio_get_value(mach->gpio_vbus);
+ return mach->gpio_vbus_inverted ? !value : value;
+ }
if (mach->udc_is_connected)
return mach->udc_is_connected();
return 1;
kfree(req);
}
-
-static void *
-pxa2xx_ep_alloc_buffer(struct usb_ep *_ep, unsigned bytes,
- dma_addr_t *dma, gfp_t gfp_flags)
-{
- char *retval;
-
- retval = kmalloc (bytes, gfp_flags & ~(__GFP_DMA|__GFP_HIGHMEM));
- if (retval)
- *dma = (dma_addr_t)~0;
- return retval;
-}
-
-static void
-pxa2xx_ep_free_buffer(struct usb_ep *_ep, void *buf, dma_addr_t dma,
- unsigned bytes)
-{
- kfree (buf);
-}
-
/*-------------------------------------------------------------------------*/
/*
.alloc_request = pxa2xx_ep_alloc_request,
.free_request = pxa2xx_ep_free_request,
- .alloc_buffer = pxa2xx_ep_alloc_buffer,
- .free_buffer = pxa2xx_ep_free_buffer,
-
.queue = pxa2xx_ep_queue,
.dequeue = pxa2xx_ep_dequeue,
udc = container_of(_gadget, struct pxa2xx_udc, gadget);
/* not all boards support pullup control */
- if (!udc->mach->udc_command)
+ if (!udc->mach->gpio_pullup && !udc->mach->udc_command)
return -EOPNOTSUPP;
is_active = (is_active != 0);
#ifdef CONFIG_ARCH_PXA
/* Disable clock for USB device */
- pxa_set_cken(CKEN_USB, 0);
+ clk_disable(dev->clk);
#endif
ep0_idle (dev);
#ifdef CONFIG_ARCH_PXA
/* Enable clock for USB device */
- pxa_set_cken(CKEN_USB, 1);
- udelay(5);
+ clk_enable(dev->clk);
#endif
/* try to clear these bits before we enable the udc */
UDC_RES2 = 0x00;
}
-#ifdef DISABLE_TEST_MODE
- /* "test mode" seems to have become the default in later chip
- * revs, preventing double buffering (and invalidating docs).
- * this EXPERIMENT enables it for bulk endpoints by tweaking
- * undefined/reserved register bits (that other drivers clear).
- * Belcarra code comments noted this usage.
- */
- if (fifo_mode & 1) { /* IN endpoints */
- UDC_RES1 |= USIR0_IR1|USIR0_IR6;
- UDC_RES2 |= USIR1_IR11;
- }
- if (fifo_mode & 2) { /* OUT endpoints */
- UDC_RES1 |= USIR0_IR2|USIR0_IR7;
- UDC_RES2 |= USIR1_IR12;
- }
-#endif
-
/* enable suspend/resume and reset irqs */
udc_clear_mask_UDCCR(UDCCR_SRM | UDCCR_REM);
local_irq_enable();
driver->unbind(&dev->gadget);
+ dev->gadget.dev.driver = NULL;
dev->driver = NULL;
device_del (&dev->gadget.dev);
struct pxa2xx_udc *dev = _dev;
int vbus = gpio_get_value(dev->mach->gpio_vbus);
+ if (dev->mach->gpio_vbus_inverted)
+ vbus = !vbus;
+
pxa2xx_udc_vbus_session(&dev->gadget, vbus);
return IRQ_HANDLED;
}
/* insist on Intel/ARM/XScale */
asm("mrc%? p15, 0, %0, c0, c0" : "=r" (chiprev));
if ((chiprev & CP15R0_VENDOR_MASK) != CP15R0_XSCALE_VALUE) {
- printk(KERN_ERR "%s: not XScale!\n", driver_name);
+ pr_err("%s: not XScale!\n", driver_name);
return -ENODEV;
}
break;
#endif
default:
- printk(KERN_ERR "%s: unrecognized processor: %08x\n",
+ pr_err("%s: unrecognized processor: %08x\n",
driver_name, chiprev);
/* iop3xx, ixp4xx, ... */
return -ENODEV;
if (irq < 0)
return -ENODEV;
+#ifdef CONFIG_ARCH_PXA
+ dev->clk = clk_get(&pdev->dev, "UDCCLK");
+ if (IS_ERR(dev->clk)) {
+ retval = PTR_ERR(dev->clk);
+ goto err_clk;
+ }
+#endif
+
pr_debug("%s: IRQ %d%s%s\n", driver_name, irq,
dev->has_cfr ? "" : " (!cfr)",
SIZE_STR "(pio)"
dev_dbg(&pdev->dev,
"can't get vbus gpio %d, err: %d\n",
dev->mach->gpio_vbus, retval);
- return -EBUSY;
+ goto err_gpio_vbus;
}
gpio_direction_input(dev->mach->gpio_vbus);
vbus_irq = gpio_to_irq(dev->mach->gpio_vbus);
- set_irq_type(vbus_irq, IRQT_BOTHEDGE);
} else
vbus_irq = 0;
dev_dbg(&pdev->dev,
"can't get pullup gpio %d, err: %d\n",
dev->mach->gpio_pullup, retval);
- if (dev->mach->gpio_vbus)
- gpio_free(dev->mach->gpio_vbus);
- return -EBUSY;
+ goto err_gpio_pullup;
}
gpio_direction_output(dev->mach->gpio_pullup, 0);
}
retval = request_irq(irq, pxa2xx_udc_irq,
IRQF_DISABLED, driver_name, dev);
if (retval != 0) {
- printk(KERN_ERR "%s: can't get irq %d, err %d\n",
+ pr_err("%s: can't get irq %d, err %d\n",
driver_name, irq, retval);
- if (dev->mach->gpio_pullup)
- gpio_free(dev->mach->gpio_pullup);
- if (dev->mach->gpio_vbus)
- gpio_free(dev->mach->gpio_vbus);
- return -EBUSY;
+ goto err_irq1;
}
dev->got_irq = 1;
IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
driver_name, dev);
if (retval != 0) {
- printk(KERN_ERR "%s: can't get irq %i, err %d\n",
+ pr_err("%s: can't get irq %i, err %d\n",
driver_name, LUBBOCK_USB_DISC_IRQ, retval);
lubbock_fail0:
- free_irq(irq, dev);
- if (dev->mach->gpio_pullup)
- gpio_free(dev->mach->gpio_pullup);
- if (dev->mach->gpio_vbus)
- gpio_free(dev->mach->gpio_vbus);
- return -EBUSY;
+ goto err_irq_lub;
}
retval = request_irq(LUBBOCK_USB_IRQ,
lubbock_vbus_irq,
IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
driver_name, dev);
if (retval != 0) {
- printk(KERN_ERR "%s: can't get irq %i, err %d\n",
+ pr_err("%s: can't get irq %i, err %d\n",
driver_name, LUBBOCK_USB_IRQ, retval);
free_irq(LUBBOCK_USB_DISC_IRQ, dev);
goto lubbock_fail0;
#endif
if (vbus_irq) {
retval = request_irq(vbus_irq, udc_vbus_irq,
- IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
+ IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
driver_name, dev);
if (retval != 0) {
- printk(KERN_ERR "%s: can't get irq %i, err %d\n",
+ pr_err("%s: can't get irq %i, err %d\n",
driver_name, vbus_irq, retval);
- free_irq(irq, dev);
- if (dev->mach->gpio_pullup)
- gpio_free(dev->mach->gpio_pullup);
- if (dev->mach->gpio_vbus)
- gpio_free(dev->mach->gpio_vbus);
- return -EBUSY;
+ goto err_vbus_irq;
}
}
create_proc_files();
return 0;
+
+ err_vbus_irq:
+#ifdef CONFIG_ARCH_LUBBOCK
+ free_irq(LUBBOCK_USB_DISC_IRQ, dev);
+ err_irq_lub:
+#endif
+ free_irq(irq, dev);
+ err_irq1:
+ if (dev->mach->gpio_pullup)
+ gpio_free(dev->mach->gpio_pullup);
+ err_gpio_pullup:
+ if (dev->mach->gpio_vbus)
+ gpio_free(dev->mach->gpio_vbus);
+ err_gpio_vbus:
+#ifdef CONFIG_ARCH_PXA
+ clk_put(dev->clk);
+ err_clk:
+#endif
+ return retval;
}
static void pxa2xx_udc_shutdown(struct platform_device *_dev)
if (dev->mach->gpio_pullup)
gpio_free(dev->mach->gpio_pullup);
+#ifdef CONFIG_ARCH_PXA
+ clk_put(dev->clk);
+#endif
+
platform_set_drvdata(pdev, NULL);
the_controller = NULL;
return 0;
{
struct pxa2xx_udc *udc = platform_get_drvdata(dev);
- if (!udc->mach->udc_command)
+ if (!udc->mach->gpio_pullup && !udc->mach->udc_command)
WARN("USB host won't detect disconnect!\n");
pullup(udc, 0);
static int __init udc_init(void)
{
- printk(KERN_INFO "%s: version %s\n", driver_name, DRIVER_VERSION);
+ pr_info("%s: version %s\n", driver_name, DRIVER_VERSION);
return platform_driver_probe(&udc_driver, pxa2xx_udc_probe);
}
module_init(udc_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff