#include <linux/types.h>
#include <linux/errno.h>
#include <linux/delay.h>
-#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/timer.h>
* by the host to interact with this device, and allocates endpoints to
* the different protocol interfaces. The controller driver virtualizes
* usb hardware so that the gadget drivers will be more portable.
- *
+ *
* This UDC hardware wants to implement a bit too much USB protocol, so
* it constrains the sorts of USB configuration change events that work.
* The errata for these chips are misleading; some "fixed" bugs from
#endif
/* ---------------------------------------------------------------------------
- * endpoint related parts of the api to the usb controller hardware,
+ * 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 pxa_gpio_get(mach->gpio_vbus);
+ return udc_gpio_get(mach->gpio_vbus);
if (mach->udc_is_connected)
return mach->udc_is_connected();
return 1;
struct pxa2xx_udc_mach_info *mach = the_controller->mach;
if (mach->gpio_pullup)
- pxa_gpio_set(mach->gpio_pullup, 0);
+ udc_gpio_set(mach->gpio_pullup, 0);
else if (mach->udc_command)
mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT);
}
struct pxa2xx_udc_mach_info *mach = the_controller->mach;
if (mach->gpio_pullup)
- pxa_gpio_set(mach->gpio_pullup, 1);
+ udc_gpio_set(mach->gpio_pullup, 1);
else if (mach->udc_command)
mach->udc_command(PXA2XX_UDC_CMD_CONNECT);
}
#ifdef USE_DMA
/* for (some) bulk and ISO endpoints, try to get a DMA channel and
- * bind it to the endpoint. otherwise use PIO.
+ * bind it to the endpoint. otherwise use PIO.
*/
switch (ep->bmAttributes) {
case USB_ENDPOINT_XFER_ISOC:
if (!use_dma || !ep->reg_drcmr)
break;
ep->dma = pxa_request_dma ((char *)_ep->name,
- (le16_to_cpu (desc->wMaxPacketSize) > 64)
+ (le16_to_cpu (desc->wMaxPacketSize) > 64)
? DMA_PRIO_MEDIUM /* some iso */
: DMA_PRIO_LOW,
dma_nodesc_handler, ep);
*/
/*
- * pxa2xx_ep_alloc_request - allocate a request data structure
+ * pxa2xx_ep_alloc_request - allocate a request data structure
*/
static struct usb_request *
pxa2xx_ep_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags)
/*
- * pxa2xx_ep_free_request - deallocate a request data structure
+ * pxa2xx_ep_free_request - deallocate a request data structure
*/
static void
pxa2xx_ep_free_request (struct usb_ep *_ep, struct usb_request *_req)
/*
- * nuke - dequeue ALL requests
+ * nuke - dequeue ALL requests
*/
static void nuke(struct pxa2xx_ep *ep, int status)
{
ep->dev->req_pending = 0;
ep->dev->ep0state = EP0_STALL;
- /* and bulk/intr endpoints like dropping stalls too */
- } else {
- unsigned i;
- for (i = 0; i < 1000; i += 20) {
- if (*ep->reg_udccs & UDCCS_BI_SST)
- break;
- udelay(20);
- }
- }
- local_irq_restore(flags);
+ /* and bulk/intr endpoints like dropping stalls too */
+ } else {
+ unsigned i;
+ for (i = 0; i < 1000; i += 20) {
+ if (*ep->reg_udccs & UDCCS_BI_SST)
+ break;
+ udelay(20);
+ }
+ }
+ local_irq_restore(flags);
DBG(DBG_VERBOSE, "%s halt\n", _ep->name);
return 0;
/* ---------------------------------------------------------------------------
- * device-scoped parts of the api to the usb controller hardware
+ * device-scoped parts of the api to the usb controller hardware
* ---------------------------------------------------------------------------
*/
static void udc_disable(struct pxa2xx_udc *);
/* We disable the UDC -- and its 48 MHz clock -- whenever it's not
- * in active use.
+ * in active use.
*/
static int pullup(struct pxa2xx_udc *udc, int is_active)
{
#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
-/* "function" sysfs attribute */
-static ssize_t
-show_function (struct device *_dev, struct device_attribute *attr, char *buf)
-{
- struct pxa2xx_udc *dev = dev_get_drvdata (_dev);
-
- if (!dev->driver
- || !dev->driver->function
- || strlen (dev->driver->function) > PAGE_SIZE)
- return 0;
- return scnprintf (buf, PAGE_SIZE, "%s\n", dev->driver->function);
-}
-static DEVICE_ATTR (function, S_IRUGO, show_function, NULL);
-
/*-------------------------------------------------------------------------*/
/*
- * udc_disable - disable USB device controller
+ * udc_disable - disable USB device controller
*/
static void udc_disable(struct pxa2xx_udc *dev)
{
#ifdef CONFIG_ARCH_PXA
/* Disable clock for USB device */
- pxa_set_cken(CKEN11_USB, 0);
+ pxa_set_cken(CKEN_USB, 0);
#endif
ep0_idle (dev);
/*
- * udc_reinit - initialize software state
+ * udc_reinit - initialize software state
*/
static void udc_reinit(struct pxa2xx_udc *dev)
{
#ifdef CONFIG_ARCH_PXA
/* Enable clock for USB device */
- pxa_set_cken(CKEN11_USB, 1);
+ pxa_set_cken(CKEN_USB, 1);
udelay(5);
#endif
dev->gadget.dev.driver = &driver->driver;
dev->pullup = 1;
- device_add (&dev->gadget.dev);
+ retval = device_add (&dev->gadget.dev);
+ if (retval) {
+fail:
+ dev->driver = NULL;
+ dev->gadget.dev.driver = NULL;
+ return retval;
+ }
retval = driver->bind(&dev->gadget);
if (retval) {
DMSG("bind to driver %s --> error %d\n",
driver->driver.name, retval);
device_del (&dev->gadget.dev);
-
- dev->driver = NULL;
- dev->gadget.dev.driver = NULL;
- return retval;
+ goto fail;
}
- device_create_file(dev->dev, &dev_attr_function);
/* ... then enable host detection and ep0; and we're ready
* for set_configuration as well as eventual disconnect.
dev->driver = NULL;
device_del (&dev->gadget.dev);
- device_remove_file(dev->dev, &dev_attr_function);
DMSG("unregistered gadget driver '%s'\n", driver->driver.name);
dump_state(dev);
static irqreturn_t udc_vbus_irq(int irq, void *_dev)
{
struct pxa2xx_udc *dev = _dev;
- int vbus = pxa_gpio_get(dev->mach->gpio_vbus);
+ int vbus = udc_gpio_get(dev->mach->gpio_vbus);
pxa2xx_udc_vbus_session(&dev->gadget, vbus);
return IRQ_HANDLED;
#define IXP465_AD 0x00000200
/*
- * probe - binds to the platform device
+ * probe - binds to the platform device
*/
static int __init pxa2xx_udc_probe(struct platform_device *pdev)
{
struct pxa2xx_udc *dev = &memory;
- int retval, out_dma = 1, vbus_irq;
+ int retval, out_dma = 1, vbus_irq, irq;
u32 chiprev;
/* insist on Intel/ARM/XScale */
return -ENODEV;
}
- pr_debug("%s: IRQ %d%s%s%s\n", driver_name, IRQ_USB,
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return -ENODEV;
+
+ pr_debug("%s: IRQ %d%s%s%s\n", driver_name, irq,
dev->has_cfr ? "" : " (!cfr)",
out_dma ? "" : " (broken dma-out)",
SIZE_STR DMASTR
dev->dev = &pdev->dev;
dev->mach = pdev->dev.platform_data;
if (dev->mach->gpio_vbus) {
- vbus_irq = IRQ_GPIO(dev->mach->gpio_vbus & GPIO_MD_MASK_NR);
- pxa_gpio_mode((dev->mach->gpio_vbus & GPIO_MD_MASK_NR)
- | GPIO_IN);
+ udc_gpio_init_vbus(dev->mach->gpio_vbus);
+ vbus_irq = udc_gpio_to_irq(dev->mach->gpio_vbus);
set_irq_type(vbus_irq, IRQT_BOTHEDGE);
} else
vbus_irq = 0;
if (dev->mach->gpio_pullup)
- pxa_gpio_mode((dev->mach->gpio_pullup & GPIO_MD_MASK_NR)
- | GPIO_OUT | GPIO_DFLT_LOW);
+ udc_gpio_init_pullup(dev->mach->gpio_pullup);
init_timer(&dev->timer);
dev->timer.function = udc_watchdog;
dev->vbus = is_vbus_present();
/* irq setup after old hardware state is cleaned up */
- retval = request_irq(IRQ_USB, pxa2xx_udc_irq,
+ retval = request_irq(irq, pxa2xx_udc_irq,
IRQF_DISABLED, driver_name, dev);
if (retval != 0) {
- printk(KERN_ERR "%s: can't get irq %i, err %d\n",
- driver_name, IRQ_USB, retval);
+ printk(KERN_ERR "%s: can't get irq %d, err %d\n",
+ driver_name, irq, retval);
return -EBUSY;
}
dev->got_irq = 1;
printk(KERN_ERR "%s: can't get irq %i, err %d\n",
driver_name, LUBBOCK_USB_DISC_IRQ, retval);
lubbock_fail0:
- free_irq(IRQ_USB, dev);
+ free_irq(irq, dev);
return -EBUSY;
}
retval = request_irq(LUBBOCK_USB_IRQ,
#endif
if (vbus_irq) {
retval = request_irq(vbus_irq, udc_vbus_irq,
- SA_INTERRUPT | SA_SAMPLE_RANDOM,
+ IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
driver_name, dev);
if (retval != 0) {
printk(KERN_ERR "%s: can't get irq %i, err %d\n",
driver_name, vbus_irq, retval);
- free_irq(IRQ_USB, dev);
+ free_irq(irq, dev);
return -EBUSY;
}
}
remove_proc_files();
if (dev->got_irq) {
- free_irq(IRQ_USB, dev);
+ free_irq(platform_get_irq(pdev, 0), dev);
dev->got_irq = 0;
}
#ifdef CONFIG_ARCH_LUBBOCK
*
* For now, we punt and forcibly disconnect from the USB host when PXA
* enters any suspend state. While we're disconnected, we always disable
- * the 48MHz USB clock ... allowing PXA sleep and/or 33 MHz idle states.
+ * the 48MHz USB clock ... allowing PXA sleep and/or 33 MHz idle states.
* Boards without software pullup control shouldn't use those states.
* VBUS IRQs should probably be ignored so that the PXA device just acts
* "dead" to USB hosts until system resume.
/*-------------------------------------------------------------------------*/
static struct platform_driver udc_driver = {
- .probe = pxa2xx_udc_probe,
.shutdown = pxa2xx_udc_shutdown,
.remove = __exit_p(pxa2xx_udc_remove),
.suspend = pxa2xx_udc_suspend,
static int __init udc_init(void)
{
printk(KERN_INFO "%s: version %s\n", driver_name, DRIVER_VERSION);
- return platform_driver_register(&udc_driver);
+ return platform_driver_probe(&udc_driver, pxa2xx_udc_probe);
}
module_init(udc_init);
git.samba.org / sfrench / cifs-2.6.git / blobdiff