static void usb_hub_port_connect_change(struct usb_hub *hubstate, int port,
u16 portstatus, u16 portchange)
{
struct usb_device *hub = hubstate->dev;
struct usb_device *dev;
unsigned int delay = HUB_SHORT_RESET_TIME;
int i;
char *portstr, *tempstr;
DBG_HOST_HUB("### >>> Enter hub.c file --> usb_hub_port_connect_change function \n");
dbg("port %d, portstatus %x, change %x, %s",
port + 1, portstatus, portchange, portspeed (portstatus));
/* Clear the connection change status */
usb_clear_port_feature(hub, port + 1, USB_PORT_FEAT_C_CONNECTION);
/* Disconnect any existing devices under this port */
if (hub->children[port])
usb_disconnect(&hub->children[port]);
/* Return now if nothing is connected */
if (!(portstatus & USB_PORT_STAT_CONNECTION)) {
if (portstatus & USB_PORT_STAT_ENABLE)
usb_hub_port_disable(hub, port);
return;
}
if (usb_hub_port_debounce(hub, port)) {
err("connect-debounce failed, port %d disabled", port+1);
usb_hub_port_disable(hub, port);
return;
}
down(&usb_address0_sem);
tempstr = kmalloc(1024, GFP_KERNEL);
portstr = kmalloc(1024, GFP_KERNEL);
for (i = 0; i < HUB_PROBE_TRIES; i++) {
struct usb_device *pdev, *cdev;
/* Allocate a new device struct */
dev = usb_alloc_dev(hub, hub->bus);
if (!dev) {
err("couldn't allocate usb_device");
break;
}
hub->children[port] = dev;
/* Reset the device */
if (usb_hub_port_reset(hub, port, dev, delay)) {
usb_free_dev(dev);
break;
}
/* Find a new device ID for it */
usb_connect(dev);
/* Set up TT records, if needed */
if (hub->tt) {
dev->tt = hub->tt;
dev->ttport = hub->ttport;
} else if (dev->speed != USB_SPEED_HIGH
&& hub->speed == USB_SPEED_HIGH) {
dev->tt = &hubstate->tt;
dev->ttport = port + 1;
}
/* Create a readable topology string */
cdev = dev;
pdev = dev->parent;
if (portstr && tempstr) {
portstr[0] = 0;
while (pdev) {
int port;
for (port = 0; port < pdev->maxchild; port++)
if (pdev->children[port] == cdev)
break;
strcpy(tempstr, portstr);
if (!strlen(tempstr))
sprintf(portstr, "%d", port + 1);
else
sprintf(portstr, "%d/%s", port + 1, tempstr);
cdev = pdev;
pdev = pdev->parent;
}
info("USB new device connect on bus%d/%s, assigned device number %d",
dev->bus->busnum, portstr, dev->devnum);
} else
info("USB new device connect on bus%d, assigned device number %d",
dev->bus->busnum, dev->devnum);
/* Run it through the hoops (find a driver, etc) */
if (!usb_new_device(dev))
goto done;
/* Free the configuration if there was an error */
usb_free_dev(dev);
/* Switch to a long reset time */
delay = HUB_LONG_RESET_TIME;
}
hub->children[port] = NULL;
usb_hub_port_disable(hub, port);
done:
up(&usb_address0_sem);
if (portstr)
kfree(portstr);
if (tempstr)
kfree(tempstr);
}
static void usb_hub_port_connect_change(struct usb_device *hub, int port,
struct usb_port_status *portsts)
{
struct usb_device *dev;
unsigned short portstatus, portchange;
unsigned int delay = HUB_SHORT_RESET_TIME;
int i;
char *portstr, *tempstr;
int devnum;
portstatus = le16_to_cpu(portsts->wPortStatus);
portchange = le16_to_cpu(portsts->wPortChange);
dbg("port %d, portstatus %x, change %x, %s",
port + 1, portstatus, portchange, portspeed (portstatus));
/* Clear the connection change status */
usb_clear_port_feature(hub, port + 1, USB_PORT_FEAT_C_CONNECTION);
/* Disconnect any existing devices under this port */
down(&hub->bus->dev_tree_sem);
if (hub->children[port])
usb_disconnect(&hub->children[port]);
/* Return now if nothing is connected */
if (!(portstatus & USB_PORT_STAT_CONNECTION)) {
if (portstatus & USB_PORT_STAT_ENABLE)
usb_hub_port_disable(hub, port);
up(&hub->bus->dev_tree_sem);
return;
}
up(&hub->bus->dev_tree_sem);
/* Some low speed devices have problems with the quick delay, so */
/* be a bit pessimistic with those devices. RHbug #23670 */
if (portstatus & USB_PORT_STAT_LOW_SPEED) {
wait_ms(400);
delay = HUB_LONG_RESET_TIME;
}
down(&usb_address0_sem);
down(&hub->bus->dev_tree_sem);
tempstr = kmalloc(1024, GFP_KERNEL);
portstr = kmalloc(1024, GFP_KERNEL);
for (i = 0; i < HUB_PROBE_TRIES; i++) {
struct usb_device *pdev, *cdev;
/* Allocate a new device struct */
dev = usb_alloc_dev(hub, hub->bus);
if (!dev) {
err("couldn't allocate usb_device");
break;
}
hub->children[port] = dev;
/* Reset the device */
if (usb_hub_port_reset(hub, port, dev, delay)) {
usb_free_dev(dev);
break;
}
/* Find a new device ID for it */
usb_connect(dev);
/* Create a readable topology string */
cdev = dev;
pdev = dev->parent;
if (portstr && tempstr) {
portstr[0] = 0;
while (pdev) {
int port;
for (port = 0; port < pdev->maxchild; port++)
if (pdev->children[port] == cdev)
break;
strcpy(tempstr, portstr);
if (!strlen(tempstr))
sprintf(portstr, "%d", port + 1);
else
sprintf(portstr, "%d/%s", port + 1, tempstr);
cdev = pdev;
pdev = pdev->parent;
}
info("USB new device connect on bus%d/%s, assigned device number %d",
dev->bus->busnum, portstr, dev->devnum);
} else
info("USB new device connect on bus%d, assigned device number %d",
dev->bus->busnum, dev->devnum);
devnum = dev->devnum;
/* Run it through the hoops (find a driver, etc) */
if (!usb_new_device(dev))
goto done;
/* Free the configuration if there was an error */
usb_free_dev(dev);
/* Switch to a long reset time */
delay = HUB_LONG_RESET_TIME;
}
err("failed adding a new device. Address=%d",devnum);
hub->children[port] = NULL;
usb_hub_port_disable(hub, port);
done:
up(&hub->bus->dev_tree_sem);
up(&usb_address0_sem);
if (portstr)
kfree(portstr);
if (tempstr)
kfree(tempstr);
}
int usb_find_devices(void)
{
struct usb_bus *bus;
int ret, changes = 0;
for (bus = usb_busses; bus; bus = bus->next) {
struct usb_device *devices, *dev;
/* Find all of the devices and put them into a temporary list */
ret = usb_os_find_devices(bus, &devices);
if (ret < 0)
return ret;
/*
* Now walk through all of the devices we know about and compare
* against this new list. Any duplicates will be removed from the new
* list. If we don't find it in the new list, the device was removed.
* Any devices still in the new list, are new to us.
*/
dev = bus->devices;
while (dev) {
int found = 0;
struct usb_device *ndev, *tdev = dev->next;
ndev = devices;
while (ndev) {
struct usb_device *tndev = ndev->next;
if (!strcmp(dev->filename, ndev->filename)) {
/* Remove it from the new devices list */
LIST_DEL(devices, ndev);
usb_free_dev(ndev);
found = 1;
break;
}
ndev = tndev;
}
if (!found) {
/* The device was removed from the system */
LIST_DEL(bus->devices, dev);
usb_free_dev(dev);
changes++;
}
dev = tdev;
}
/*
* Anything on the *devices list is new. So add them to bus->devices and
* process them like the new device it is.
*/
dev = devices;
while (dev) {
struct usb_device *tdev = dev->next;
/*
* Remove it from the temporary list first and add it to the real
* bus->devices list.
*/
LIST_DEL(devices, dev);
LIST_ADD(bus->devices, dev);
/*
* Some ports fetch the descriptors on scanning (like Linux) so we don't
* need to fetch them again.
*/
if (!dev->config) {
usb_dev_handle *udev;
udev = usb_open(dev);
if (udev) {
usb_fetch_and_parse_descriptors(udev);
usb_close(udev);
}
}
changes++;
dev = tdev;
}
usb_os_determine_children(bus);
}
return changes;
}
static void usb_hub_port_connect_change(struct usb_hub *hubstate, int port,
u16 portstatus, u16 portchange)
{
struct usb_device *hub = hubstate->dev;
struct usb_device *dev;
unsigned int delay = HUB_SHORT_RESET_TIME;
int i;
dbg("port %d, portstatus %x, change %x, %s",
port + 1, portstatus, portchange, portspeed (portstatus));
/* Clear the connection change status */
usb_clear_port_feature(hub, port + 1, USB_PORT_FEAT_C_CONNECTION);
/* Disconnect any existing devices under this port */
if (hub->children[port])
usb_disconnect(&hub->children[port]);
/* Return now if nothing is connected */
if (!(portstatus & USB_PORT_STAT_CONNECTION)) {
if (portstatus & USB_PORT_STAT_ENABLE)
usb_hub_port_disable(hub, port);
return;
}
if (usb_hub_port_debounce(hub, port)) {
err("connect-debounce failed, port %d disabled", port+1);
usb_hub_port_disable(hub, port);
return;
}
down(&usb_address0_sem);
for (i = 0; i < HUB_PROBE_TRIES; i++) {
struct usb_device *pdev;
int len;
/* Allocate a new device struct */
dev = usb_alloc_dev(hub, hub->bus);
if (!dev) {
err("couldn't allocate usb_device");
break;
}
/* Reset the device */
if (usb_hub_port_reset(hub, port, dev, delay)) {
usb_free_dev(dev);
break;
}
/* Find a new device ID for it */
usb_connect(dev);
/* Set up TT records, if needed */
if (hub->tt) {
dev->tt = hub->tt;
dev->ttport = hub->ttport;
} else if (dev->speed != USB_SPEED_HIGH
&& hub->speed == USB_SPEED_HIGH) {
dev->tt = &hubstate->tt;
dev->ttport = port + 1;
}
/* Save readable and stable topology id, distinguishing
* devices by location for diagnostics, tools, etc. The
* string is a path along hub ports, from the root. Each
* device's id will be stable until USB is re-cabled, and
* hubs are often labeled with these port numbers.
*
* Initial size: ".NN" times five hubs + NUL = 16 bytes max
* (quite rare, since most hubs have 4-6 ports).
*/
pdev = dev->parent;
if (pdev->devpath [0] != '0') /* parent not root? */
len = snprintf (dev->devpath, sizeof dev->devpath,
"%s.%d", pdev->devpath, port + 1);
/* root == "0", root port 2 == "2", port 3 that hub "2.3" */
else
len = snprintf (dev->devpath, sizeof dev->devpath,
"%d", port + 1);
if (len == sizeof dev->devpath)
warn ("devpath size! usb/%03d/%03d path %s",
dev->bus->busnum, dev->devnum, dev->devpath);
USB_SET_LED(USB_CONNECT); //2005-02-24 by kanki for USB LED
info("new USB device %s-%s, assigned address %d",
dev->bus->bus_name, dev->devpath, dev->devnum);
/* Run it through the hoops (find a driver, etc) */
if (!usb_new_device(dev)) {
hub->children[port] = dev;
goto done;
}
/* Free the configuration if there was an error */
usb_free_dev(dev);
/* Switch to a long reset time */
delay = HUB_LONG_RESET_TIME;
}
usb_hub_port_disable(hub, port);
done:
up(&usb_address0_sem);
}
static void usb_hub_port_connect_change(struct usb_hub *hubstate, int port,
u16 portstatus, u16 portchange)
{
struct usb_device *hub = hubstate->dev;
struct usb_device *dev;
unsigned int delay = HUB_SHORT_RESET_TIME;
int i;
dbg("port %d, portstatus %x, change %x, %s",
port + 1, portstatus, portchange, portspeed (portstatus));
/* Clear the connection change status */
usb_clear_port_feature(hub, port + 1, USB_PORT_FEAT_C_CONNECTION);
/* Disconnect any existing devices under this port */
if (hub->children[port])
usb_disconnect(&hub->children[port]);
/* Return now if nothing is connected */
if (!(portstatus & USB_PORT_STAT_CONNECTION)) {
if (portstatus & USB_PORT_STAT_ENABLE)
usb_hub_port_disable(hub, port);
return;
}
if (usb_hub_port_debounce(hub, port)) {
err("connect-debounce failed, port %d disabled", port+1);
usb_hub_port_disable(hub, port);
return;
}
down(&usb_address0_sem);
for (i = 0; i < HUB_PROBE_TRIES; i++) {
struct usb_device *pdev;
int len;
/* Allocate a new device struct */
dev = usb_alloc_dev(hub, hub->bus);
if (!dev) {
err("couldn't allocate usb_device");
break;
}
hub->children[port] = dev;
/* add by Levis for wakeup BP */
int begin = 0;
#ifdef CONFIG_ARCH_EZXBASE
set_GPIO_mode(GPIO_IN | GPIO_BP_RDY);
if(!GPIO_is_high(GPIO_BP_RDY))
{
if(GPIO_is_high(GPIO_AP_RDY ))
{
GPCR(GPIO_AP_RDY ) = GPIO_bit(GPIO_AP_RDY );
udelay(WAKE_UP_BP_UDELAY);
GPSR(GPIO_AP_RDY ) = GPIO_bit(GPIO_AP_RDY );
}else {
GPSR(GPIO_AP_RDY ) = GPIO_bit(GPIO_AP_RDY );
udelay(WAKE_UP_BP_UDELAY);
GPCR(GPIO_AP_RDY ) = GPIO_bit(GPIO_AP_RDY );
}
begin = jiffies;
while(!GPIO_is_high(GPIO_BP_RDY) && (jiffies < (begin+HZ))) ;
if(!GPIO_is_high(GPIO_BP_RDY))
{
printk("%s: Wakeup BP timeout! BP is still in sleep state!\n", __FUNCTION__);
}
}
#else
set_GPIO_mode(GPIO_IN | 41);
if(GPIO_is_high(41))
{
if(GPIO_is_high(GPIO_MCU_INT_SW))
GPCR(GPIO_MCU_INT_SW) = GPIO_bit(GPIO_MCU_INT_SW);
else {
GPSR(GPIO_MCU_INT_SW) = GPIO_bit(GPIO_MCU_INT_SW);
}
begin = jiffies;
while(GPIO_is_high(41) && (jiffies < (begin+HZ))) printk("%s: waitting for BP active!\n", __FUNCTION__);
if(GPIO_is_high(GPIO_MCU_INT_SW))
GPCR(GPIO_MCU_INT_SW) = GPIO_bit(GPIO_MCU_INT_SW);
else {
GPSR(GPIO_MCU_INT_SW) = GPIO_bit(GPIO_MCU_INT_SW);
}
}
#endif
/* end Levis */
/* Reset the device */
if (usb_hub_port_reset(hub, port, dev, delay)) {
usb_free_dev(dev);
break;
}
/* Find a new device ID for it */
usb_connect(dev);
/* Set up TT records, if needed */
if (hub->tt) {
dev->tt = hub->tt;
dev->ttport = hub->ttport;
} else if (dev->speed != USB_SPEED_HIGH
&& hub->speed == USB_SPEED_HIGH) {
dev->tt = &hubstate->tt;
dev->ttport = port + 1;
}
/* Save readable and stable topology id, distinguishing
* devices by location for diagnostics, tools, etc. The
* string is a path along hub ports, from the root. Each
* device's id will be stable until USB is re-cabled, and
* hubs are often labeled with these port numbers.
*
* Initial size: ".NN" times five hubs + NUL = 16 bytes max
* (quite rare, since most hubs have 4-6 ports).
*/
pdev = dev->parent;
if (pdev->devpath [0] != '0') /* parent not root? */
len = snprintf (dev->devpath, sizeof dev->devpath,
"%s.%d", pdev->devpath, port + 1);
/* root == "0", root port 2 == "2", port 3 that hub "2.3" */
else
len = snprintf (dev->devpath, sizeof dev->devpath,
"%d", port + 1);
if (len == sizeof dev->devpath)
warn ("devpath size! usb/%03d/%03d path %s",
dev->bus->busnum, dev->devnum, dev->devpath);
info("new USB device %s-%s, assigned address %d",
dev->bus->bus_name, dev->devpath, dev->devnum);
/* Run it through the hoops (find a driver, etc) */
if (!usb_new_device(dev))
goto done;
/* Free the configuration if there was an error */
usb_free_dev(dev);
/* Switch to a long reset time */
delay = HUB_LONG_RESET_TIME;
}
hub->children[port] = NULL;
usb_hub_port_disable(hub, port);
done:
up(&usb_address0_sem);
}