* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
*/
static const char driver_desc[] = DRIVER_DESC;
-/* controller device global variable */
-static struct langwell_udc *the_controller;
-
/* for endpoint 0 operations */
static const struct usb_endpoint_descriptor
langwell_ep0_desc = {
if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)
return -ESHUTDOWN;
- max = le16_to_cpu(desc->wMaxPacketSize);
+ max = usb_endpoint_maxp(desc);
/*
* disable HW zero length termination select
return 0;
}
-static int langwell_start(struct usb_gadget_driver *driver,
- int (*bind)(struct usb_gadget *));
-static int langwell_stop(struct usb_gadget_driver *driver);
+static int langwell_start(struct usb_gadget *g,
+ struct usb_gadget_driver *driver);
+
+static int langwell_stop(struct usb_gadget *g,
+ struct usb_gadget_driver *driver);
+
/* device controller usb_gadget_ops structure */
static const struct usb_gadget_ops langwell_ops = {
/* D+ pullup, software-controlled connect/disconnect to USB host */
.pullup = langwell_pullup,
- .start = langwell_start,
- .stop = langwell_stop,
+ .udc_start = langwell_start,
+ .udc_stop = langwell_stop,
};
static ssize_t show_function(struct device *_dev,
struct device_attribute *attr, char *buf)
{
- struct langwell_udc *dev = the_controller;
+ struct langwell_udc *dev = dev_get_drvdata(_dev);
if (!dev->driver || !dev->driver->function
|| strlen(dev->driver->function) > PAGE_SIZE)
static DEVICE_ATTR(function, S_IRUGO, show_function, NULL);
+static inline enum usb_device_speed lpm_device_speed(u32 reg)
+{
+ switch (LPM_PSPD(reg)) {
+ case LPM_SPEED_HIGH:
+ return USB_SPEED_HIGH;
+ case LPM_SPEED_FULL:
+ return USB_SPEED_FULL;
+ case LPM_SPEED_LOW:
+ return USB_SPEED_LOW;
+ default:
+ return USB_SPEED_UNKNOWN;
+ }
+}
+
/* device "langwell_udc" sysfs attribute file */
static ssize_t show_langwell_udc(struct device *_dev,
struct device_attribute *attr, char *buf)
{
- struct langwell_udc *dev = the_controller;
+ struct langwell_udc *dev = dev_get_drvdata(_dev);
struct langwell_request *req;
struct langwell_ep *ep = NULL;
char *next;
"BmAttributes: %d\n\n",
LPM_PTS(tmp_reg),
(tmp_reg & LPM_STS) ? 1 : 0,
- ({
- char *s;
- switch (LPM_PSPD(tmp_reg)) {
- case LPM_SPEED_FULL:
- s = "Full Speed"; break;
- case LPM_SPEED_LOW:
- s = "Low Speed"; break;
- case LPM_SPEED_HIGH:
- s = "High Speed"; break;
- default:
- s = "Unknown Speed"; break;
- }
- s;
- }),
+ usb_speed_string(lpm_device_speed(tmp_reg)),
(tmp_reg & LPM_PFSC) ? "Force Full Speed" : "Not Force",
(tmp_reg & LPM_PHCD) ? "Disabled" : "Enabled",
LPM_BA(tmp_reg));
static ssize_t store_remote_wakeup(struct device *_dev,
struct device_attribute *attr, const char *buf, size_t count)
{
- struct langwell_udc *dev = the_controller;
+ struct langwell_udc *dev = dev_get_drvdata(_dev);
unsigned long flags;
ssize_t rc = count;
* the driver might get unbound.
*/
-static int langwell_start(struct usb_gadget_driver *driver,
- int (*bind)(struct usb_gadget *))
+static int langwell_start(struct usb_gadget *g,
+ struct usb_gadget_driver *driver)
{
- struct langwell_udc *dev = the_controller;
+ struct langwell_udc *dev = gadget_to_langwell(g);
unsigned long flags;
int retval;
- if (!dev)
- return -ENODEV;
-
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
- if (dev->driver)
- return -EBUSY;
-
spin_lock_irqsave(&dev->lock, flags);
/* hook up the driver ... */
spin_unlock_irqrestore(&dev->lock, flags);
- retval = bind(&dev->gadget);
- if (retval) {
- dev_dbg(&dev->pdev->dev, "bind to driver %s --> %d\n",
- driver->driver.name, retval);
- dev->driver = NULL;
- dev->gadget.dev.driver = NULL;
- return retval;
- }
-
retval = device_create_file(&dev->pdev->dev, &dev_attr_function);
if (retval)
- goto err_unbind;
+ goto err;
dev->usb_state = USB_STATE_ATTACHED;
dev->ep0_state = WAIT_FOR_SETUP;
dev_info(&dev->pdev->dev, "register driver: %s\n",
driver->driver.name);
dev_dbg(&dev->pdev->dev, "<--- %s()\n", __func__);
+
return 0;
-err_unbind:
- driver->unbind(&dev->gadget);
+err:
dev->gadget.dev.driver = NULL;
dev->driver = NULL;
dev_dbg(&dev->pdev->dev, "<--- %s()\n", __func__);
+
return retval;
}
/* unregister gadget driver */
-static int langwell_stop(struct usb_gadget_driver *driver)
+static int langwell_stop(struct usb_gadget *g,
+ struct usb_gadget_driver *driver)
{
- struct langwell_udc *dev = the_controller;
+ struct langwell_udc *dev = gadget_to_langwell(g);
unsigned long flags;
- if (!dev)
- return -ENODEV;
-
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
- if (unlikely(!driver || !driver->unbind))
- return -EINVAL;
-
/* exit PHY low power suspend */
if (dev->pdev->device != 0x0829)
langwell_phy_low_power(dev, 0);
stop_activity(dev, driver);
spin_unlock_irqrestore(&dev->lock, flags);
- /* unbind gadget driver */
- driver->unbind(&dev->gadget);
dev->gadget.dev.driver = NULL;
dev->driver = NULL;
dev_info(&dev->pdev->dev, "unregistered driver '%s'\n",
driver->driver.name);
dev_dbg(&dev->pdev->dev, "<--- %s()\n", __func__);
+
return 0;
}
dev_vdbg(&dev->pdev->dev, "<--- %s()\n", __func__);
}
-
/* port change detect interrupt handler */
static void handle_port_change(struct langwell_udc *dev)
{
u32 portsc1, devlc;
- u32 speed;
dev_vdbg(&dev->pdev->dev, "---> %s()\n", __func__);
/* bus reset is finished */
if (!(portsc1 & PORTS_PR)) {
/* get the speed */
- speed = LPM_PSPD(devlc);
- switch (speed) {
- case LPM_SPEED_HIGH:
- dev->gadget.speed = USB_SPEED_HIGH;
- break;
- case LPM_SPEED_FULL:
- dev->gadget.speed = USB_SPEED_FULL;
- break;
- case LPM_SPEED_LOW:
- dev->gadget.speed = USB_SPEED_LOW;
- break;
- default:
- dev->gadget.speed = USB_SPEED_UNKNOWN;
- break;
- }
- dev_vdbg(&dev->pdev->dev,
- "speed = %d, dev->gadget.speed = %d\n",
- speed, dev->gadget.speed);
+ dev->gadget.speed = lpm_device_speed(devlc);
+ dev_vdbg(&dev->pdev->dev, "dev->gadget.speed = %d\n",
+ dev->gadget.speed);
}
/* LPM L0 to L1 */
/* release device structure */
static void gadget_release(struct device *_dev)
{
- struct langwell_udc *dev = the_controller;
+ struct langwell_udc *dev = dev_get_drvdata(_dev);
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
/* tear down the binding between this driver and the pci device */
static void langwell_udc_remove(struct pci_dev *pdev)
{
- struct langwell_udc *dev = the_controller;
+ struct langwell_udc *dev = pci_get_drvdata(pdev);
DECLARE_COMPLETION(done);
/* free dev, wait for the release() finished */
wait_for_completion(&done);
-
- the_controller = NULL;
}
size_t size;
int retval;
- if (the_controller) {
- dev_warn(&pdev->dev, "ignoring\n");
- return -EBUSY;
- }
-
/* alloc, and start init */
dev = kzalloc(sizeof *dev, GFP_KERNEL);
if (dev == NULL) {
"After langwell_udc_probe(), print all registers:\n");
print_all_registers(dev);
- the_controller = dev;
-
retval = device_register(&dev->gadget.dev);
if (retval)
goto error;
/* device controller suspend */
static int langwell_udc_suspend(struct pci_dev *pdev, pm_message_t state)
{
- struct langwell_udc *dev = the_controller;
+ struct langwell_udc *dev = pci_get_drvdata(pdev);
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
/* device controller resume */
static int langwell_udc_resume(struct pci_dev *pdev)
{
- struct langwell_udc *dev = the_controller;
+ struct langwell_udc *dev = pci_get_drvdata(pdev);
size_t size;
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
/* pci driver shutdown */
static void langwell_udc_shutdown(struct pci_dev *pdev)
{
- struct langwell_udc *dev = the_controller;
+ struct langwell_udc *dev = pci_get_drvdata(pdev);
u32 usbmode;
dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
projects / karo-tx-linux.git / blobdiff