/*
* Unregister entry point for the peripheral controller driver.
*/
int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
{
struct s3c_udc *dev = the_controller;
unsigned long flags;
if (!dev)
return -ENODEV;
if (!driver || driver != dev->driver)
return -EINVAL;
disable_irq(IRQ_OTG);
spin_lock_irqsave(&dev->lock, flags);
stop_activity(dev, driver);
spin_unlock_irqrestore(&dev->lock, flags);
driver->unbind(&dev->gadget);
device_del(&dev->gadget.dev);
printk("Unregistered gadget driver '%s'\n", driver->driver.name);
udc_disable(dev);
dev->gadget.dev.driver = NULL;
dev->driver = NULL;
dev->config_gadget_driver = NO_GADGET_DRIVER;
return 0;
}
int dwc_peripheral_start(void *data, bool enable)
{
struct gadget_wrapper *d;
d = gadget_wrapper;
pr_info("usb: %s d->vbus=%d, enable=%d\n", __func__, d->vbus, enable);
mutex_lock(&udc_lock);
d->vbus = enable;
if ( !d->softconnect )
{
printk("usb: %s , d->softconnect is %d / udc don't start now \r\n",__func__, d->softconnect );
mutex_unlock(&udc_lock);
return 0;
}
if(enable) {
wake_lock(&usb_wake_lock);
udc_enable();
dwc_otg_core_init(GET_CORE_IF(d->pcd));
dwc_otg_enable_global_interrupts(GET_CORE_IF(d->pcd));
dwc_otg_core_dev_init(GET_CORE_IF(d->pcd));
d->udc_startup = 1;
} else {
dwc_otg_disable_global_interrupts(GET_CORE_IF(d->pcd));
dwc_otg_clear_all_int(GET_CORE_IF(d->pcd));
dwc_otg_pcd_stop(d->pcd);
udc_disable();
d->udc_startup = 0;
wake_unlock(&usb_wake_lock);
}
mutex_unlock(&udc_lock);
return 0;
}
/*
* power down s3c-udc power & disable otg clock
*/
void s3c_udc_power_down(void)
{
struct s3c_udc *dev = the_controller;
printk("[%s] \n", __FUNCTION__);
udc_disable(dev);
clk_disable(otg_clock);
//fsa9480_s3c_udc_off();
}
/*
* usbd_pm_callback
* @dev:
* @rqst:
* @unused:
*
* Used to signal power management events.
*/
static int bi_pm_event (struct pm_dev *pm_dev, pm_request_t request, void *unused)
{
struct usb_device_instance *device;
dbg_pm (0, "request: %d pm_dev: %p data: %p", request, pm_dev, pm_dev->data);
if (!(device = pm_dev->data)) {
dbg_pm (0, "DATA NULL, NO DEVICE");
return 0;
}
switch (request) {
#if defined(CONFIG_IRIS)
case PM_STANDBY:
case PM_BLANK:
#endif
case PM_SUSPEND:
dbg_pm (0, "PM_SUSPEND");
if (!pm_suspended) {
pm_suspended = 1;
dbg_init (1, "MOD_INC_USE_COUNT %d", GET_USE_COUNT (THIS_MODULE));
udc_disconnect (); // disable USB pullup if we can
udc_disable_interrupts (device); // disable interupts
udc_disable (); // disable UDC
dbg_pm (0, "PM_SUSPEND: finished");
}
break;
#if defined(CONFIG_IRIS)
case PM_UNBLANK:
#endif
case PM_RESUME:
dbg_pm (0, "PM_RESUME");
if (pm_suspended) {
// probe for device
if (udc_init ()) {
dbg_init (0, "udc_init failed");
//return -EINVAL;
}
udc_enable (device); // enable UDC
udc_all_interrupts (device); // enable interrupts
udc_connect (); // enable USB pullup if we can
//udc_set_address(device->address);
//udc_reset_ep(0);
pm_suspended = 0;
dbg_init (1, "MOD_INC_USE_COUNT %d", GET_USE_COUNT (THIS_MODULE));
dbg_pm (0, "PM_RESUME: finished");
}
break;
}
return 0;
}
int sprd_charger_is_adapter(struct sprd_battery_data *data)
{
uint32_t ret;
volatile uint32_t i;
unsigned long irq_flag = 0;
gpio_request(USB_DM_GPIO, "sprd_charge");
gpio_request(USB_DP_GPIO, "sprd_charge");
gpio_direction_input(USB_DM_GPIO);
gpio_direction_input(USB_DP_GPIO);
udc_enable();
udc_phy_down();
local_irq_save(irq_flag);
sprd_greg_clear_bits(REG_TYPE_AHB_GLOBAL,
(USB_DM_PULLDOWN_BIT | USB_DP_PULLDOWN_BIT),
USB_PHY_CTRL);
/* Identify USB charger */
sprd_greg_set_bits(REG_TYPE_AHB_GLOBAL, USB_DM_PULLUP_BIT,
USB_PHY_CTRL);
mdelay(10);
ret = gpio_get_value(USB_DM_GPIO);
sprd_greg_clear_bits(REG_TYPE_AHB_GLOBAL, (USB_DM_PULLUP_BIT),
USB_PHY_CTRL);
/* normal charger */
if (ret) {
/* Identify standard adapter */
sprd_greg_set_bits(REG_TYPE_AHB_GLOBAL, USB_DM_PULLDOWN_BIT,
USB_PHY_CTRL);
for (i = 0; i < 200; i++) {;
}
if ((gpio_get_value(USB_DM_GPIO) & BIT(1))
&& (gpio_get_value(USB_DP_GPIO) & BIT(2))) {
ret = 1; /* adapter */
} else {
ret = 1; /* non standard adapter */
}
sprd_greg_clear_bits(REG_TYPE_AHB_GLOBAL, (USB_DM_PULLDOWN_BIT),
USB_PHY_CTRL);
}
local_irq_restore(irq_flag);
udc_disable();
gpio_free(USB_DM_GPIO);
gpio_free(USB_DP_GPIO);
return ret;
}
static void __udc_shutdown(void)
{
struct gadget_wrapper *d;
d = gadget_wrapper;
pr_info("USB:shutdown udc\n");
if (d->udc_startup) {
dwc_otg_pcd_stop(d->pcd);
udc_disable();
d->udc_startup = 0;
wake_unlock(&usb_wake_lock);
}
}
static void __udc_shutdown(void)
{
struct gadget_wrapper *d;
d = gadget_wrapper;
pr_info("USB:shutdown udc\n");
if (d->udc_startup) {
dwc_otg_disable_global_interrupts(GET_CORE_IF(d->pcd));
dwc_otg_clear_all_int(GET_CORE_IF(d->pcd));
dwc_otg_pcd_stop(d->pcd);
udc_disable();
d->udc_startup = 0;
wake_unlock(&usb_wake_lock);
}
}
int sprd_charger_is_adapter(struct sprd_battery_data *data)
{
uint32_t ret;
volatile uint32_t i;
unsigned long irq_flag = 0;
mdelay(300);
gpio_request(USB_DM_GPIO, "sprd_charge");
gpio_request(USB_DP_GPIO, "sprd_charge");
gpio_direction_input(USB_DM_GPIO);
gpio_direction_input(USB_DP_GPIO);
udc_enable();
udc_phy_down();
local_irq_save(irq_flag);
sci_glb_clr(REG_AHB_USB_PHY_CTRL, (BIT_DMPULLDOWN | BIT_DPPULLDOWN));
/* Identify USB charger */
sci_glb_set(REG_AHB_USB_PHY_CTRL, BIT_DMPULLUP);
mdelay(10);
ret = gpio_get_value(USB_DM_GPIO);
sci_glb_clr(REG_AHB_USB_PHY_CTRL, (BIT_DMPULLUP));
#if 0
/* normal charger */
if (ret) {
/* Identify standard adapter */
sci_glb_set(REG_AHB_USB_PHY_CTRL, BIT_DMPULLDOWN);
for (i = 0; i < 1000; i++) {;
}
if (gpio_get_value(USB_DM_GPIO)
== gpio_get_value(USB_DP_GPIO)) {
ret = 1; /* adapter */
} else {
ret = 1; /* non standard adapter */
}
sci_glb_clr(REG_AHB_USB_PHY_CTRL, (BIT_DMPULLDOWN));
}
#endif
local_irq_restore(irq_flag);
udc_disable();
gpio_free(USB_DM_GPIO);
gpio_free(USB_DP_GPIO);
return ret;
}
/**
* bi_udc_exit - Stop using the USB Device Controller
*
* Stop using the USB Device Controller.
*
* Shutdown and free dma channels, de-register the interrupt handler.
*/
void bi_udc_exit(void)
{
int i;
dbg_init(1, "Unloading %s", udc_name());
for (i = 0; i < udc_max_endpoints(); i++) {
udc_disable_ep(i);
}
// free io and irq
udc_disconnect();
udc_disable();
udc_release_io();
udc_release_udc_irq();
if (have_cable_irq) {
udc_release_cable_irq();
}
}
static int
bi_udc_suspend(struct device *dev, u32 state, u32 level)
{
struct usb_device_instance *device = device_array[0];
switch (level) {
case SUSPEND_POWER_DOWN:
dbg_pm (0, "SUSPEND_POWER_DOWN");
dbg_init (1, "MOD_INC_USE_COUNT %d",
GET_USE_COUNT (THIS_MODULE));
udc_disconnect (); /* disable USB pullup */
if (device)
udc_disable_interrupts (device); /* disable interrupts */
udc_disable (); /* disable UDC */
dbg_pm (0, "SUSPEND_POWER_DOWN: finished");
break;
}
return 0;
}
/*
Unregister entry point for the peripheral controller driver.
*/
int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
{
struct lh7a40x_udc *dev = the_controller;
unsigned long flags;
if (!dev)
return -ENODEV;
if (!driver || driver != dev->driver || !driver->unbind)
return -EINVAL;
spin_lock_irqsave(&dev->lock, flags);
dev->driver = 0;
stop_activity(dev, driver);
spin_unlock_irqrestore(&dev->lock, flags);
driver->unbind(&dev->gadget);
device_del(&dev->gadget.dev);
udc_disable(dev);
DEBUG("unregistered gadget driver '%s'\n", driver->driver.name);
return 0;
}
int udc_destroy(void)
{
udc_disable();
mxc_udc_destroy();
return 0;
}
/* bi_modexit - decommission bus interface driver
*/
void __exit bi_modexit(void)
{
struct usb_bus_instance *bus;
struct usb_device_instance *device;
struct bi_data *data;
dbgENTER(dbgflg_usbdbi_init,1);
if ((device = device_array[0])) {
// XXX moved to usbd_deregister_device()
//device->status = USBD_CLOSING;
udc_disconnect();
udc_disable();
// XXX XXX
if (dbgflg_usbdbi_tick > 0) {
ticker_killoff();
}
bus = device->bus;
data = bus->privdata;
// XXX
usbd_device_event(device, DEVICE_RESET, 0);
usbd_device_event(device, DEVICE_POWER_INTERRUPTION, 0);
usbd_device_event(device, DEVICE_HUB_RESET, 0);
dbg_init(1,"DEVICE_DESTROY");
usbd_device_event(device, DEVICE_DESTROY, 0);
dbg_init(1,"DISABLE ENDPOINTS");
bi_disable_endpoints(device);
dbg_init(1,"UDC_DISABLE");
//udc_disable();
dbg_init(1,"BI_UDC_EXIT");
bi_udc_exit();
device_array[0] = NULL;
bus->privdata = NULL;
#ifdef CONFIG_PM
dbg_init(1,"PM_UNREGISTER(pm_dev#%p)",pm_dev);
if (pm_dev) {
pm_unregister(pm_dev);
}
#endif
dbg_init(1,"DEREGISTER DEVICE");
usbd_deregister_device(device);
bus->device = NULL;
dbg_init(1,"kfree(data#%p)",data);
if (data) {
kfree(data);
}
if (bus->serial_number_str) {
kfree(bus->serial_number_str);
}
dbg_init(1,"DEREGISTER BUS");
usbd_deregister_bus(bus);
}
else {
dbg_init(0,"device is NULL");
}
dbg_init(1,"BI_EXIT");
bi_exit();
dbgLEAVE(dbgflg_usbdbi_init,1);
}
/**
* bi_device_event - handle generic bus event
* @device: device pointer
* @event: interrupt event
*
* Called by usb core layer to inform bus of an event.
*/
int bi_device_event(struct usb_device_instance *device, usb_device_event_t event, int data)
{
sie_info * sie_data;
cy_priv_t * cy_priv;
otg_t * otg;
sie_data = (sie_info *) device->bus->privdata;
cy_priv = (cy_priv_t *) sie_data->cy_priv;
otg = (otg_t *) cy_priv->otg;
//printk(KERN_DEBUG "bi_device_event: event: %d\n", event);
if (!device) {
return 0;
}
switch (event) {
case DEVICE_UNKNOWN:
break;
case DEVICE_INIT:
break;
case DEVICE_CREATE: // XXX should this stuff be in DEVICE_INIT?
bi_config(device);
// enable udc, enable interrupts, enable connect
udc_enable(device);
udc_all_interrupts(device);
udc_connect();
break;
case DEVICE_HUB_CONFIGURED:
break;
case DEVICE_RESET:
device->address = 0;
udc_set_address(device->address, device);
udc_reset_ep(0, device);
udc_all_interrupts(device); // XXX
break;
case DEVICE_ADDRESS_ASSIGNED:
udc_set_address(device->address, device);
device->status = USBD_OK;
break;
case DEVICE_CONFIGURED:
bi_config(device);
break;
case DEVICE_DE_CONFIGURED:
udc_reset_ep(1, device);
udc_reset_ep(2, device);
udc_reset_ep(3, device);
break;
case DEVICE_SET_INTERFACE:
bi_config(device);
break;
case DEVICE_SET_FEATURE:
break;
case DEVICE_CLEAR_FEATURE:
break;
case DEVICE_BUS_INACTIVE:
// disable suspend interrupt
udc_suspended_interrupts(device);
// XXX check on linkup and sl11
// if we are no longer connected then force a reset
if (!udc_connected()) {
usbd_device_event_irq(device, DEVICE_RESET, 0);
}
break;
case DEVICE_BUS_ACTIVITY:
// enable suspend interrupt
udc_all_interrupts(device);
break;
case DEVICE_POWER_INTERRUPTION:
break;
case DEVICE_HUB_RESET:
break;
case DEVICE_DESTROY:
udc_disconnect();
bi_disable_endpoints(device);
udc_disable_interrupts(device);
udc_disable();
break;
case DEVICE_BUS_REQUEST:
otg->b_bus_req = TRUE;
update_otg_state(otg);
break;
case DEVICE_BUS_RELEASE:
otg->b_bus_req = FALSE;
update_otg_state(otg);
break;
case DEVICE_RCV_URB_RECYCLED:
udc_rcv_urb_recycled();
break;
case DEVICE_ACCEPT_HNP:
otg->b_hnp_en = TRUE;
update_otg_state(otg);
break;
case DEVICE_REQUEST_SRP:
//otg->srp_start_flag = TRUE;
otg->b_bus_req = TRUE;
otg->b_se0_srp = TRUE;
update_otg_state(otg);
break;
case DEVICE_FUNCTION_PRIVATE:
break;
}
return 0;
}
/**
* bi_device_event - handle generic bus event
* @device: device pointer
* @event: interrupt event
*
* Called by usb core layer to inform bus of an event.
*/
int bi_device_event (struct usb_device_instance *device, usb_device_event_t event, int data)
{
//printk(KERN_DEBUG "bi_device_event: event: %d\n", event);
if (!device) {
return 0;
}
dbg_usbe (1,"%s", USBD_DEVICE_EVENTS(event));
switch (event) {
case DEVICE_UNKNOWN:
break;
case DEVICE_INIT:
break;
case DEVICE_CREATE: // XXX should this stuff be in DEVICE_INIT?
// enable upstream port
//ep0_enable(device);
// for net_create
bi_config (device);
// enable udc, enable interrupts, enable connect
printk(KERN_INFO"bi_device_event: call udc_enable\n");
udc_enable (device);
printk(KERN_INFO"bi_device_event: call udc_all_interrupts\n");
// XXX verify
udc_suspended_interrupts (device);
//udc_all_interrupts (device);
dbg_usbe (1, "CREATE done");
break;
case DEVICE_HUB_CONFIGURED:
udc_connect ();
break;
case DEVICE_RESET:
device->address = 0;
udc_set_address (device->address);
udc_reset_ep (0);
// XXX verify
udc_suspended_interrupts (device);
dbg_usbe (1, "DEVICE RESET done: %d", device->address);
break;
case DEVICE_ADDRESS_ASSIGNED:
udc_set_address (device->address);
device->status = USBD_OK;
// XXX verify
udc_all_interrupts (device); // XXX
break;
case DEVICE_CONFIGURED:
device->status = USBD_OK;
bi_config (device);
break;
case DEVICE_DE_CONFIGURED:
{
int ep;
for (ep = 1; ep < udc_max_endpoints (); ep++)
udc_reset_ep (ep);
}
break;
case DEVICE_SET_INTERFACE:
bi_config (device);
break;
case DEVICE_SET_FEATURE:
break;
case DEVICE_CLEAR_FEATURE:
break;
case DEVICE_BUS_INACTIVE:
// disable suspend interrupt
udc_suspended_interrupts (device);
// XXX check on linkup and sl11
// if we are no longer connected then force a reset
if (!udc_connected ()) {
usbd_device_event_irq (device, DEVICE_RESET, 0);
}
break;
case DEVICE_BUS_ACTIVITY:
// enable suspend interrupt
udc_all_interrupts (device);
break;
case DEVICE_POWER_INTERRUPTION:
break;
case DEVICE_HUB_RESET:
break;
case DEVICE_DESTROY:
udc_disconnect ();
bi_disable_endpoints (device);
udc_disable_interrupts (device);
udc_disable ();
break;
case DEVICE_FUNCTION_PRIVATE:
break;
}
return 0;
}
void udc_power_off(void)
{
udc_disable();
}