#include <linux/usb/gadget.h>
#include <linux/usb/otg.h>
#include <linux/prefetch.h>
+#include <linux/platform_data/s3c-hsudc.h>
+#include <linux/regulator/consumer.h>
#include <mach/regs-s3c2443-clock.h>
-#include <plat/udc.h>
#define S3C_HSUDC_REG(x) (x)
#define DATA_STATE_XMIT (1)
#define DATA_STATE_RECV (2)
+static const char * const s3c_hsudc_supply_names[] = {
+ "vdda", /* analog phy supply, 3.3V */
+ "vddi", /* digital phy supply, 1.2V */
+ "vddosc", /* oscillator supply, 1.8V - 3.3V */
+};
+
/**
* struct s3c_hsudc_ep - Endpoint representation used by driver.
* @ep: USB gadget layer representation of device endpoint.
struct device *dev;
struct s3c24xx_hsudc_platdata *pd;
struct otg_transceiver *transceiver;
+ struct regulator_bulk_data supplies[ARRAY_SIZE(s3c_hsudc_supply_names)];
spinlock_t lock;
void __iomem *regs;
struct resource *mem_rsrc;
#define ep_index(_ep) ((_ep)->bEndpointAddress & \
USB_ENDPOINT_NUMBER_MASK)
-static struct s3c_hsudc *the_controller;
static const char driver_name[] = "s3c-udc";
static const char ep0name[] = "ep0-control";
* All the endpoints are stopped and any pending transfer requests if any on
* the endpoint are terminated.
*/
-static void s3c_hsudc_stop_activity(struct s3c_hsudc *hsudc,
- struct usb_gadget_driver *driver)
+static void s3c_hsudc_stop_activity(struct s3c_hsudc *hsudc)
{
struct s3c_hsudc_ep *hsep;
int epnum;
hsep->stopped = 1;
s3c_hsudc_nuke_ep(hsep, -ESHUTDOWN);
}
-
- spin_unlock(&hsudc->lock);
- driver->disconnect(&hsudc->gadget);
- spin_lock(&hsudc->lock);
}
/**
return IRQ_HANDLED;
}
-static int s3c_hsudc_start(struct usb_gadget_driver *driver,
- int (*bind)(struct usb_gadget *))
+static int s3c_hsudc_start(struct usb_gadget *gadget,
+ struct usb_gadget_driver *driver)
{
- struct s3c_hsudc *hsudc = the_controller;
+ struct s3c_hsudc *hsudc = to_hsudc(gadget);
int ret;
if (!driver
- || driver->speed < USB_SPEED_FULL
- || !bind
- || !driver->unbind || !driver->disconnect || !driver->setup)
+ || driver->max_speed < USB_SPEED_FULL
+ || !driver->setup)
return -EINVAL;
if (!hsudc)
hsudc->driver = driver;
hsudc->gadget.dev.driver = &driver->driver;
- hsudc->gadget.speed = USB_SPEED_UNKNOWN;
- ret = device_add(&hsudc->gadget.dev);
- if (ret) {
- dev_err(hsudc->dev, "failed to probe gadget device");
- return ret;
- }
- ret = bind(&hsudc->gadget);
- if (ret) {
- dev_err(hsudc->dev, "%s: bind failed\n", hsudc->gadget.name);
- device_del(&hsudc->gadget.dev);
-
- hsudc->driver = NULL;
- hsudc->gadget.dev.driver = NULL;
- return ret;
+ ret = regulator_bulk_enable(ARRAY_SIZE(hsudc->supplies),
+ hsudc->supplies);
+ if (ret != 0) {
+ dev_err(hsudc->dev, "failed to enable supplies: %d\n", ret);
+ goto err_supplies;
}
/* connect to bus through transceiver */
if (ret) {
dev_err(hsudc->dev, "%s: can't bind to transceiver\n",
hsudc->gadget.name);
- driver->unbind(&hsudc->gadget);
-
- device_del(&hsudc->gadget.dev);
-
- hsudc->driver = NULL;
- hsudc->gadget.dev.driver = NULL;
- return ret;
+ goto err_otg;
}
}
hsudc->pd->gpio_init();
return 0;
+err_otg:
+ regulator_bulk_disable(ARRAY_SIZE(hsudc->supplies), hsudc->supplies);
+err_supplies:
+ hsudc->driver = NULL;
+ hsudc->gadget.dev.driver = NULL;
+ return ret;
}
-static int s3c_hsudc_stop(struct usb_gadget_driver *driver)
+static int s3c_hsudc_stop(struct usb_gadget *gadget,
+ struct usb_gadget_driver *driver)
{
- struct s3c_hsudc *hsudc = the_controller;
+ struct s3c_hsudc *hsudc = to_hsudc(gadget);
unsigned long flags;
if (!hsudc)
return -ENODEV;
- if (!driver || driver != hsudc->driver || !driver->unbind)
+ if (!driver || driver != hsudc->driver)
return -EINVAL;
spin_lock_irqsave(&hsudc->lock, flags);
- hsudc->driver = 0;
+ hsudc->driver = NULL;
+ hsudc->gadget.dev.driver = NULL;
+ hsudc->gadget.speed = USB_SPEED_UNKNOWN;
s3c_hsudc_uninit_phy();
if (hsudc->pd->gpio_uninit)
hsudc->pd->gpio_uninit();
- s3c_hsudc_stop_activity(hsudc, driver);
+ s3c_hsudc_stop_activity(hsudc);
spin_unlock_irqrestore(&hsudc->lock, flags);
if (hsudc->transceiver)
(void) otg_set_peripheral(hsudc->transceiver, NULL);
- driver->unbind(&hsudc->gadget);
- device_del(&hsudc->gadget.dev);
disable_irq(hsudc->irq);
+ regulator_bulk_disable(ARRAY_SIZE(hsudc->supplies), hsudc->supplies);
+
dev_info(hsudc->dev, "unregistered gadget driver '%s'\n",
driver->driver.name);
return 0;
static int s3c_hsudc_vbus_draw(struct usb_gadget *gadget, unsigned mA)
{
- struct s3c_hsudc *hsudc = the_controller;
+ struct s3c_hsudc *hsudc = to_hsudc(gadget);
if (!hsudc)
return -ENODEV;
static struct usb_gadget_ops s3c_hsudc_gadget_ops = {
.get_frame = s3c_hsudc_gadget_getframe,
- .start = s3c_hsudc_start,
- .stop = s3c_hsudc_stop,
+ .udc_start = s3c_hsudc_start,
+ .udc_stop = s3c_hsudc_stop,
.vbus_draw = s3c_hsudc_vbus_draw,
};
-static int s3c_hsudc_probe(struct platform_device *pdev)
+static int __devinit s3c_hsudc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct resource *res;
struct s3c_hsudc *hsudc;
struct s3c24xx_hsudc_platdata *pd = pdev->dev.platform_data;
- int ret;
+ int ret, i;
hsudc = kzalloc(sizeof(struct s3c_hsudc) +
sizeof(struct s3c_hsudc_ep) * pd->epnum,
return -ENOMEM;
}
- the_controller = hsudc;
platform_set_drvdata(pdev, dev);
hsudc->dev = dev;
hsudc->pd = pdev->dev.platform_data;
hsudc->transceiver = otg_get_transceiver();
+ for (i = 0; i < ARRAY_SIZE(hsudc->supplies); i++)
+ hsudc->supplies[i].supply = s3c_hsudc_supply_names[i];
+
+ ret = regulator_bulk_get(dev, ARRAY_SIZE(hsudc->supplies),
+ hsudc->supplies);
+ if (ret != 0) {
+ dev_err(dev, "failed to request supplies: %d\n", ret);
+ goto err_supplies;
+ }
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(dev, "unable to obtain driver resource data\n");
spin_lock_init(&hsudc->lock);
- device_initialize(&hsudc->gadget.dev);
dev_set_name(&hsudc->gadget.dev, "gadget");
- hsudc->gadget.is_dualspeed = 1;
+ hsudc->gadget.max_speed = USB_SPEED_HIGH;
hsudc->gadget.ops = &s3c_hsudc_gadget_ops;
hsudc->gadget.name = dev_name(dev);
hsudc->gadget.dev.parent = dev;
hsudc->gadget.is_otg = 0;
hsudc->gadget.is_a_peripheral = 0;
+ hsudc->gadget.speed = USB_SPEED_UNKNOWN;
s3c_hsudc_setup_ep(hsudc);
disable_irq(hsudc->irq);
local_irq_enable();
+ ret = device_register(&hsudc->gadget.dev);
+ if (ret) {
+ put_device(&hsudc->gadget.dev);
+ goto err_add_device;
+ }
+
ret = usb_add_gadget_udc(&pdev->dev, &hsudc->gadget);
if (ret)
goto err_add_udc;
return 0;
err_add_udc:
+ device_unregister(&hsudc->gadget.dev);
+err_add_device:
clk_disable(hsudc->uclk);
clk_put(hsudc->uclk);
err_clk:
iounmap(hsudc->regs);
err_remap:
- release_resource(hsudc->mem_rsrc);
- kfree(hsudc->mem_rsrc);
-
+ release_mem_region(res->start, resource_size(res));
err_res:
+ if (hsudc->transceiver)
+ otg_put_transceiver(hsudc->transceiver);
+
+ regulator_bulk_free(ARRAY_SIZE(hsudc->supplies), hsudc->supplies);
+err_supplies:
kfree(hsudc);
return ret;
}
},
.probe = s3c_hsudc_probe,
};
-MODULE_ALIAS("platform:s3c-hsudc");
-
-static int __init s3c_hsudc_modinit(void)
-{
- return platform_driver_register(&s3c_hsudc_driver);
-}
-static void __exit s3c_hsudc_modexit(void)
-{
- platform_driver_unregister(&s3c_hsudc_driver);
-}
-
-module_init(s3c_hsudc_modinit);
-module_exit(s3c_hsudc_modexit);
+module_platform_driver(s3c_hsudc_driver);
MODULE_DESCRIPTION("Samsung S3C24XX USB high-speed controller driver");
MODULE_AUTHOR("Thomas Abraham <thomas.ab@samsung.com>");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:s3c-hsudc");
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff