/* *
* usbd_proc_write - implement proc file system write.
* @file
* @buf
* @count
* @pos
*
* Proc file system write function, used to signal monitor actions complete.
* (Hotplug script (or whatever) writes to the file to signal the completion
* of the script.) An ugly hack.
*/
static ssize_t usbd_proc_write (struct file *file, const char *buf, size_t count, loff_t * pos)
{
struct usb_device_instance *device;
size_t n = count;
char command[64];
char *cp = command;
int i = 0;
MOD_INC_USE_COUNT;
//printk(KERN_DEBUG "%s: count=%u\n",__FUNCTION__,count);
while ((n > 0) && (i < 64)) {
// Not too efficient, but it shouldn't matter
if (copy_from_user (cp++, buf + (count - n), 1)) {
count = -EFAULT;
break;
}
*cp = '\0';
i++;
n -= 1;
//printk(KERN_DEBUG "%s: %u/%u %02x\n",__FUNCTION__,count-n,count,c);
}
if (!strncmp (command, "plug", 4)) {
udc_connect ();
}
else if (!strncmp (command, "unplug", 6)) {
udc_disconnect ();
if ((device = device_array[0])) {
usbd_device_event (device, DEVICE_RESET, 0);
}
}
MOD_DEC_USE_COUNT;
return (count);
}
static int
bi_udc_resume(struct device *dev, u32 level)
{
int ret = 0;
struct usb_device_instance *device = device_array[0];
switch (level) {
case RESUME_POWER_ON:
dbg_pm (0, "RESUME_POWER_ON");
if (udc_init ()) {
dbg_init (0, "udc_init failed");
}
if (device) {
udc_enable (device); /* enable UDC */
udc_all_interrupts (device); /* enable interrupts */
}
udc_connect (); /* enable USB pullup */
dbg_init (1, "MOD_INC_USE_COUNT %d",
GET_USE_COUNT (THIS_MODULE));
dbg_pm (0, "RESUME_POWER_ON: finished");
break;
}
return ret;
}
/*
* 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;
}
static void usb_udc_init(void)
{
DBG("usb init start\n");
usbotg_init_ext();
usbotg_clock_gate(1);
usb_phy_init();
usb_set_mode_device();
//mxc_init_usb_qh();
//usb_init_eps();
//mxc_init_ep_struct();
//ep0_setup();
//mxc_ep_qh_setup(0, USB_RECV, USB_ENDPOINT_XFER_CONTROL,
// USB_MAX_CTRL_PAYLOAD, 0, 0);
udc_connect();
}
int do_neo1973 ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int i;
if (!strcmp(argv[1], "info")) {
printf("FIC Neo1973 Hardware Revision 0x%04x\n", get_board_rev());
} else if (!strcmp(argv[1], "power-off")) {
neo1973_poweroff();
} else if (!strcmp(argv[1], "charger") || !strcmp(argv[1], "charge")) {
if (argc < 3)
goto out_help;
if (!strcmp(argv[2], "status") || !strcmp(argv[2], "state")) {
printf("%s\n", neo1973_get_charge_status());
} else if (!strcmp(argv[2], "autofast")) {
neo1973_set_charge_mode(NEO1973_CHGCMD_AUTOFAST);
} else if (!strcmp(argv[2], "!autofast")) {
neo1973_set_charge_mode(NEO1973_CHGCMD_NO_AUTOFAST);
} else if (!strcmp(argv[2], "off")) {
neo1973_set_charge_mode(NEO1973_CHGCMD_OFF);
} else if (!strcmp(argv[2], "fast")) {
neo1973_set_charge_mode(NEO1973_CHGCMD_FAST);
} else
goto out_help;
} else if (!strcmp(argv[1], "backlight")) {
if (argc < 3)
goto out_help;
if (!strcmp(argv[2], "on"))
neo1973_backlight(1);
else
neo1973_backlight(0);
} else if (!strcmp(argv[1], "led")) {
long led = simple_strtol(argv[2], NULL, 10);
if (argc < 4)
goto out_help;
if (!strcmp(argv[3], "on"))
neo1973_led(led, 1);
else
neo1973_led(led, 0);
} else if (!strcmp(argv[1], "vibrator")) {
if (argc < 3)
goto out_help;
if (!strcmp(argv[2], "on"))
neo1973_vibrator(1);
else
neo1973_vibrator(0);
} else if (!strcmp(argv[1], "gsm")) {
if (argc < 3)
goto out_help;
if (!strcmp(argv[2], "on"))
neo1973_gsm(1);
else if (!strcmp(argv[2], "off"))
neo1973_gsm(0);
else if (!strcmp(argv[2], "version"))
neo1973_gsmver();
} else if (!strcmp(argv[1], "gps")) {
if (argc < 3)
goto out_help;
if (!strcmp(argv[2], "on"))
neo1973_gps(1);
else
neo1973_gps(0);
} else if (!strcmp(argv[1], "udc")) {
if (argc < 3)
goto out_help;
if (!strcmp(argv[2], "pullup")) {
if (argc < 4)
goto out_help;
if (!strcmp(argv[3], "on"))
udc_connect();
else
udc_disconnect();
} else
goto out_help;
} else {
out_help:
printf("Usage:\n%s\n", cmdtp->usage);
return 1;
}
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)
{
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;
}
int ticker_thread (void *data)
{
struct timer_list ticker;
// detach
lock_kernel ();
exit_mm (current);
exit_files (current);
exit_fs (current);
// setsid equivalent, used at start of kernel thread, no error checks needed, or at least none made :).
current->leader = 1;
current->session = current->pgrp = current->pid;
current->tty = NULL;
current->tty_old_pgrp = 0;
// Name this thread
sprintf (current->comm, "usbd-bi");
// setup signal handler
current->exit_signal = SIGCHLD;
spin_lock (¤t->sigmask_lock);
flush_signals (current);
spin_unlock (¤t->sigmask_lock);
// XXX Run at a high priority, ahead of sync and friends
// current->nice = -20;
current->policy = SCHED_OTHER;
unlock_kernel ();
// setup timer
init_timer (&ticker);
ticker.data = 0;
ticker.function = ticker_tick;
// let startup continue
up (&ticker_sem_start);
// process loop
for (ticker_timer_set = ticker_terminating = 0; !ticker_terminating;) {
char buf[100];
char *cp;
if (!ticker_timer_set) {
mod_timer (&ticker, jiffies + HZ * RETRYTIME);
}
// wait for someone to tell us to do something
down (&ticker_sem_work);
if (udc_interrupts != udc_interrupts_last) {
dbg_tick (3, "--------------");
}
// do some work
memset (buf, 0, sizeof (buf));
cp = buf;
if (dbgflg_usbdbi_tick) {
unsigned long flags;
local_irq_save (flags);
dbg_tick (2, "[%d]", udc_interrupts);
udc_regs ();
local_irq_restore (flags);
}
#if 0
// XXX
#if defined(CONFIG_SA1110_CALYPSO) && defined(CONFIG_PM) && defined(CONFIG_USBD_TRAFFIC_KEEPAWAKE)
/* Check for rx/tx activity, and reset the sleep timer if present */
if (device->usbd_rxtx_timestamp != device->usbd_last_rxtx_timestamp) {
extern void resetSleepTimer (void);
dbg_tick (7, "resetting sleep timer");
resetSleepTimer ();
device->usbd_last_rxtx_timestamp = device->usbd_rxtx_timestamp;
}
#endif
#endif
#if 0
/* Check for TX endpoint stall. If the endpoint has
stalled, we have probably run into the DMA/TCP window
problem, and the only thing we can do is disconnect
from the bus, then reconnect (and re-enumerate...). */
if (reconnect > 0 && 0 >= --reconnect) {
dbg_init (0, "TX stall disconnect finished");
udc_connect ();
} else if (0 != USBD_STALL_TIMEOUT_SECONDS) {
// Stall watchdog unleashed
unsigned long now, tx_waiting;
now = jiffies;
tx_waiting = (now - tx_queue_head_timestamp (now)) / HZ;
if (tx_waiting > USBD_STALL_TIMEOUT_SECONDS) {
/* The URB at the head of the queue has waited too long */
reconnect = USBD_STALL_DISCONNECT_DURATION;
dbg_init (0, "TX stalled, disconnecting for %d seconds", reconnect);
udc_disconnect ();
}
}
#endif
}
// remove timer
del_timer (&ticker);
// let the process stopping us know we are done and return
up (&ticker_sem_start);
return 0;
}
int fastboot_init(struct cmd_fastboot_interface *interface)
{
fastboot_interface = interface;
return udc_connect();
}