static void tegra_change_otg_state(struct tegra_otg_data *tegra,
enum usb_otg_state to)
{
struct otg_transceiver *otg = &tegra->otg;
enum usb_otg_state from = otg->state;
if(!tegra->interrupt_mode){
DBG("OTG: Vbus detection is disabled");
return;
}
DBG("%s(%d) requested otg state %s-->%s\n", __func__,
__LINE__, tegra_state_name(from), tegra_state_name(to));
if (to != OTG_STATE_UNDEFINED && from != to) {
otg->state = to;
/*dev_info(tegra->otg.dev, "%s --> %s\n", tegra_state_name(from),
tegra_state_name(to));*/
USBH_INFO("%s --> %s\n", tegra_state_name(from), tegra_state_name(to));
if (from == OTG_STATE_A_SUSPEND) {
if (to == OTG_STATE_B_PERIPHERAL && otg->gadget) {
usb_gadget_vbus_connect(otg->gadget);
#ifdef CONFIG_USB_ANDROID_PROJECTOR
if (check_htc_mode_status() != NOT_ON_AUTOBOT) {
htc_mode_enable(0);
android_switch_default();
}
#endif
} else if (to == OTG_STATE_A_HOST) {
tegra_start_host(tegra);
dump_otg_state();
}
} else if (from == OTG_STATE_A_HOST) {
if (to == OTG_STATE_A_SUSPEND)
tegra_stop_host(tegra);
} else if (from == OTG_STATE_B_PERIPHERAL && otg->gadget) {
if (to == OTG_STATE_A_SUSPEND)
usb_gadget_vbus_disconnect(otg->gadget);
}
} else if (to != OTG_STATE_UNDEFINED && from == to) {
USBH_INFO("%s --> %s (%d)\n", tegra_state_name(from), tegra_state_name(to), USB_disabled);
if (USB_disabled) {
usb_gadget_disconnect(otg->gadget);
} else if (to == OTG_STATE_B_PERIPHERAL) {
usb_gadget_vbus_connect(otg->gadget);
usb_gadget_connect(otg->gadget);
} else {
usb_gadget_connect(otg->gadget);
}
}
}
void usb_composite_force_reset(struct usb_composite_dev *cdev)
{
unsigned long flags;
spin_lock_irqsave(&cdev->lock, flags);
/* force reenumeration */
if (cdev && cdev->gadget &&
cdev->gadget->speed != USB_SPEED_UNKNOWN) {
/*
* Another USB disconnect event is reported from
* controller before "disconnected" switch event is sent out.
* This does happen. When force_reset is executed,
* two reset interrupt occur - one for get descriptor,
* one for bus enumeration.
* To avoid unnecessary switch event ignited,
* we set the flag "mute_switch" to 2.
* This is a "hard" assumption that two
* "disconnect" event will be reported
*/
cdev->mute_switch = 2;
/* avoid sending a disconnect switch event until after we disconnect */
spin_unlock_irqrestore(&cdev->lock, flags);
usb_gadget_disconnect(cdev->gadget);
msleep(10);
usb_gadget_connect(cdev->gadget);
usb_gadget_vbus_connect(cdev->gadget);
} else {
spin_unlock_irqrestore(&cdev->lock, flags);
}
}
static void isp1704_charger_work(struct work_struct *data)
{
int detect;
struct isp1704_charger *isp =
container_of(data, struct isp1704_charger, work);
/*
* FIXME Only supporting dedicated chargers even though isp1704 can
* detect HUB and HOST chargers. If the device has already been
* enumerated, the detection will break the connection.
*/
if (isp->otg->state != OTG_STATE_B_IDLE)
return;
/* disable data pullups */
if (isp->otg->gadget)
usb_gadget_disconnect(isp->otg->gadget);
/* detect charger */
detect = isp1704_charger_detect(isp);
if (detect) {
isp->present = detect;
power_supply_changed(&isp->psy);
}
/* enable data pullups */
if (isp->otg->gadget)
usb_gadget_connect(isp->otg->gadget);
}
static int g_dnl_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
int id, ret;
int gcnum;
char *s=NULL;
debug("%s: gadget: 0x%p cdev: 0x%p\n", __func__, gadget, cdev);
id = usb_string_id(cdev);
if (id < 0)
return id;
g_dnl_string_defs[0].id = id;
device_desc.iManufacturer = id;
id = usb_string_id(cdev);
if (id < 0)
return id;
g_dnl_string_defs[1].id = id;
device_desc.iProduct = id;
id = usb_string_id(cdev);
if (id < 0)
return id;
g_dnl_string_defs[2].id = id;
device_desc.iSerialNumber = id;
s = get_usid_string();
if (s)
g_dnl_set_serialnumber(s);
g_dnl_bind_fixup(&device_desc, cdev->driver->name);
ret = g_dnl_config_register(cdev);
if (ret)
goto error;
gcnum = g_dnl_get_bcd_device_number(cdev);
if (gcnum >= 0)
device_desc.bcdDevice = cpu_to_le16(gcnum);
else {
debug("%s: controller '%s' not recognized\n",
__func__, gadget->name);
device_desc.bcdDevice = __constant_cpu_to_le16(0x9999);
}
debug("%s: calling usb_gadget_connect for "
"controller '%s'\n", __func__, gadget->name);
usb_gadget_connect(gadget);
return 0;
error:
g_dnl_unbind(cdev);
return -ENOMEM;
}
static void sec_reconnect_work(struct work_struct *data)
{
struct dwc3 *udc = container_of(data, struct dwc3, reconnect_work);
usb_gadget_disconnect(&udc->gadget);
printk(KERN_ERR"usb: Disconnected in case of Super speed support \n");
mdelay(1);
usb_gadget_connect(&udc->gadget);
}
void usb_composite_force_reset(struct usb_composite_dev *cdev)
{
unsigned long flags;
spin_lock_irqsave(&cdev->lock, flags);
/* force reenumeration */
if (cdev && cdev->gadget && cdev->gadget->speed != USB_SPEED_UNKNOWN) {
spin_unlock_irqrestore(&cdev->lock, flags);
usb_gadget_disconnect(cdev->gadget);
msleep(10);
usb_gadget_connect(cdev->gadget);
} else {
spin_unlock_irqrestore(&cdev->lock, flags);
}
}
void usb_composite_force_reset(struct usb_composite_dev *cdev)
{
unsigned long flags;
spin_lock_irqsave(&cdev->lock, flags);
/* force reenumeration */
if (cdev && cdev->gadget) {
/* avoid sending a disconnect switch event until after we disconnect */
cdev->mute_switch = 1;
spin_unlock_irqrestore(&cdev->lock, flags);
usb_gadget_disconnect(cdev->gadget);
msleep(10);
usb_gadget_connect(cdev->gadget);
} else {
spin_unlock_irqrestore(&cdev->lock, flags);
}
}
void usb_composite_force_reset(struct usb_composite_dev *cdev)
{
unsigned long flags;
spin_lock_irqsave(&cdev->lock, flags);
/* force reenumeration */
if (cdev && cdev->gadget &&
cdev->gadget->speed != USB_SPEED_UNKNOWN) {
/* avoid sending a disconnect switch event until after we disconnect */
// cdev->mute_switch = 1;// yk 20110505 rk29 don't need to mute switch
spin_unlock_irqrestore(&cdev->lock, flags);
usb_gadget_disconnect(cdev->gadget);
msleep(10);
usb_gadget_connect(cdev->gadget);
} else {
spin_unlock_irqrestore(&cdev->lock, flags);
}
}
void usb_composite_force_reset(struct usb_composite_dev *cdev)
{
unsigned long flags;
spin_lock_irqsave(&cdev->lock, flags);
/* force reenumeration */
if (cdev && cdev->gadget && cdev->gadget->speed != USB_SPEED_UNKNOWN) {
spin_unlock_irqrestore(&cdev->lock, flags);
#ifdef FEATURE_ANDROID_PANTECH_USB_QC_FIX_BUG
cdev->mute_switch = 1;
#endif
usb_gadget_disconnect(cdev->gadget);
msleep(10);
usb_gadget_connect(cdev->gadget);
} else {
spin_unlock_irqrestore(&cdev->lock, flags);
}
}
void usb_composite_force_reset(struct usb_composite_dev *cdev)
{
unsigned long flags;
spin_lock_irqsave(&cdev->lock, flags);
/* force reenumeration */
if (cdev && cdev->gadget &&
cdev->gadget->speed != USB_SPEED_UNKNOWN) {
/* avoid sending a disconnect switch event until after we disconnect */
cdev->mute_switch = 1;
spin_unlock_irqrestore(&cdev->lock, flags);
CSY_DBG_ESS("disconnect usb\n");
usb_gadget_disconnect(cdev->gadget);
msleep(20);
CSY_DBG_ESS("connect usb again\n");
usb_gadget_connect(cdev->gadget);
} else {
CSY_DBG_ESS("skip reset\n");
spin_unlock_irqrestore(&cdev->lock, flags);
}
}
void usb_composite_force_reset(struct usb_composite_dev *cdev)
{
unsigned long flags;
if (!cdev) {
printk(KERN_ERR "usb_composite_force_reset: invalid cdev\n");
return;
}
spin_lock_irqsave(&cdev->lock, flags);
/* force reenumeration */
if (cdev && cdev->gadget && cdev->gadget->speed != USB_SPEED_UNKNOWN) {
spin_unlock_irqrestore(&cdev->lock, flags);
/* avoid sending a disconnect switch event
* until after we disconnect
*/
cdev->mute_switch = 1;
usb_gadget_disconnect(cdev->gadget);
msleep(10);
usb_gadget_connect(cdev->gadget);
} else {
spin_unlock_irqrestore(&cdev->lock, flags);
}
}
static int g_dnl_config_register(struct usb_composite_dev *cdev)
{
static struct usb_configuration config = {
.label = "usb_dnload",
.bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
.bConfigurationValue = CONFIG_USBDOWNLOADER,
.iConfiguration = STRING_USBDOWN,
.bind = g_dnl_do_config,
};
return usb_add_config(cdev, &config);
}
__weak
int g_dnl_bind_fixup(struct usb_device_descriptor *dev)
{
return 0;
}
static int g_dnl_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
int id, ret;
int gcnum;
debug("%s: gadget: 0x%p cdev: 0x%p\n", __func__, gadget, cdev);
id = usb_string_id(cdev);
if (id < 0)
return id;
g_dnl_string_defs[0].id = id;
device_desc.iManufacturer = id;
id = usb_string_id(cdev);
if (id < 0)
return id;
g_dnl_string_defs[1].id = id;
device_desc.iProduct = id;
g_dnl_bind_fixup(&device_desc);
ret = g_dnl_config_register(cdev);
if (ret)
goto error;
gcnum = usb_gadget_controller_number(gadget);
debug("gcnum: %d\n", gcnum);
if (gcnum >= 0)
device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
else {
debug("%s: controller '%s' not recognized\n",
shortname, gadget->name);
device_desc.bcdDevice = __constant_cpu_to_le16(0x9999);
}
debug("%s: calling usb_gadget_connect for "
"controller '%s'\n", shortname, gadget->name);
usb_gadget_connect(gadget);
return 0;
error:
g_dnl_unbind(cdev);
return -ENOMEM;
}
static struct usb_composite_driver g_dnl_driver = {
.name = NULL,
.dev = &device_desc,
.strings = g_dnl_composite_strings,
.bind = g_dnl_bind,
.unbind = g_dnl_unbind,
};
int g_dnl_register(const char *type)
{
/* We only allow "dfu" atm, so 3 should be enough */
static char name[sizeof(shortname) + 3];
int ret;
if (!strcmp(type, "dfu")) {
strcpy(name, shortname);
strcat(name, type);
} else if (!strcmp(type, "ums")) {
strcpy(name, shortname);
strcat(name, type);
} else {
printf("%s: unknown command: %s\n", __func__, type);
return -EINVAL;
}
g_dnl_driver.name = name;
debug("%s: g_dnl_driver.name: %s\n", __func__, g_dnl_driver.name);
ret = usb_composite_register(&g_dnl_driver);
if (ret) {
printf("%s: failed!, error: %d\n", __func__, ret);
return ret;
}
return 0;
}
void g_dnl_unregister(void)
{
usb_composite_unregister(&g_dnl_driver);
}
static void isp1704_charger_work(struct work_struct *data)
{
struct isp1704_charger *isp =
container_of(data, struct isp1704_charger, work);
static DEFINE_MUTEX(lock);
mutex_lock(&lock);
switch (isp->phy->last_event) {
case USB_EVENT_VBUS:
/* do not call wall charger detection more times */
if (!isp->present) {
isp->online = true;
isp->present = 1;
isp1704_charger_set_power(isp, 1);
/* detect wall charger */
if (isp1704_charger_detect_dcp(isp)) {
isp->psy_desc.type = POWER_SUPPLY_TYPE_USB_DCP;
isp->current_max = 1800;
} else {
isp->psy_desc.type = POWER_SUPPLY_TYPE_USB;
isp->current_max = 500;
}
/* enable data pullups */
if (isp->phy->otg->gadget)
usb_gadget_connect(isp->phy->otg->gadget);
}
if (isp->psy_desc.type != POWER_SUPPLY_TYPE_USB_DCP) {
/*
* Only 500mA here or high speed chirp
* handshaking may break
*/
if (isp->current_max > 500)
isp->current_max = 500;
if (isp->current_max > 100)
isp->psy_desc.type = POWER_SUPPLY_TYPE_USB_CDP;
}
break;
case USB_EVENT_NONE:
isp->online = false;
isp->present = 0;
isp->current_max = 0;
isp->psy_desc.type = POWER_SUPPLY_TYPE_USB;
/*
* Disable data pullups. We need to prevent the controller from
* enumerating.
*
* FIXME: This is here to allow charger detection with Host/HUB
* chargers. The pullups may be enabled elsewhere, so this can
* not be the final solution.
*/
if (isp->phy->otg->gadget)
usb_gadget_disconnect(isp->phy->otg->gadget);
isp1704_charger_set_power(isp, 0);
break;
default:
goto out;
}
power_supply_changed(isp->psy);
out:
mutex_unlock(&lock);
}
static int __init nokia_bind(struct usb_composite_dev *cdev)
{
int gcnum;
struct usb_gadget *gadget = cdev->gadget;
int status;
printk("nokia_bind called!!!!\n");
status = gphonet_setup(cdev->gadget);
if (status < 0)
goto err_phonet;
status = gserial_setup(cdev->gadget, 3);
if (status < 0)
goto err_serial;
status = gether_setup(cdev->gadget, hostaddr);
if (status < 0)
goto err_ether;
status = usb_string_id(cdev);
if (status < 0)
goto err_usb;
strings_dev[STRING_MANUFACTURER_IDX].id = status;
device_desc.iManufacturer = status;
status = usb_string_id(cdev);
if (status < 0)
goto err_usb;
strings_dev[STRING_PRODUCT_IDX].id = status;
device_desc.iProduct = status;
/* config description */
status = usb_string_id(cdev);
if (status < 0)
goto err_usb;
strings_dev[STRING_DESCRIPTION_IDX].id = status;
nokia_config_500ma_driver.iConfiguration = status;
nokia_config_100ma_driver.iConfiguration = status;
/* set up other descriptors */
gcnum = usb_gadget_controller_number(gadget);
if (gcnum >= 0)
device_desc.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM);
else {
/* this should only work with hw that supports altsettings
* and several endpoints, anything else, panic.
*/
pr_err("nokia_bind: controller '%s' not recognized\n",
gadget->name);
goto err_usb;
}
/* finally register the configuration */
status = usb_add_config(cdev, &nokia_config_500ma_driver,
nokia_bind_config);
if (status < 0)
goto err_usb;
status = usb_add_config(cdev, &nokia_config_100ma_driver,
nokia_bind_config);
if (status < 0)
goto err_usb;
//
usb_gadget_connect(cdev->gadget);
//
dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME);
return 0;
err_usb:
gether_cleanup();
err_ether:
gserial_cleanup();
err_serial:
gphonet_cleanup();
err_phonet:
return status;
}
static void isp1704_charger_work(struct work_struct *data)
{
int detect;
unsigned long event;
unsigned power;
struct isp1704_charger *isp =
container_of(data, struct isp1704_charger, work);
static DEFINE_MUTEX(lock);
event = isp->event;
power = isp->max_power;
mutex_lock(&lock);
if (event != USB_EVENT_NONE)
isp1704_charger_set_power(isp, 1);
switch (event) {
case USB_EVENT_VBUS:
isp->online = true;
/* detect charger */
detect = isp1704_charger_detect(isp);
if (detect) {
isp->present = detect;
isp->psy.type = isp1704_charger_type(isp);
}
switch (isp->psy.type) {
case POWER_SUPPLY_TYPE_USB_DCP:
isp->current_max = 1800;
break;
case POWER_SUPPLY_TYPE_USB_CDP:
/*
* Only 500mA here or high speed chirp
* handshaking may break
*/
isp->current_max = 500;
/* FALLTHROUGH */
case POWER_SUPPLY_TYPE_USB:
default:
/* enable data pullups */
if (isp->phy->otg->gadget)
usb_gadget_connect(isp->phy->otg->gadget);
}
break;
case USB_EVENT_NONE:
isp->online = false;
isp->current_max = 0;
isp->present = 0;
isp->current_max = 0;
isp->psy.type = POWER_SUPPLY_TYPE_USB;
/*
* Disable data pullups. We need to prevent the controller from
* enumerating.
*
* FIXME: This is here to allow charger detection with Host/HUB
* chargers. The pullups may be enabled elsewhere, so this can
* not be the final solution.
*/
if (isp->phy->otg->gadget)
usb_gadget_disconnect(isp->phy->otg->gadget);
isp1704_charger_set_power(isp, 0);
break;
case USB_EVENT_ENUMERATED:
if (isp->present)
isp->current_max = 1800;
else
isp->current_max = power;
break;
default:
goto out;
}
power_supply_changed(&isp->psy);
out:
mutex_unlock(&lock);
}
