static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge)
{
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
unsigned long flags;
usbhsg_pipe_disable(uep);
dev_dbg(dev, "set halt %d (pipe %d)\n",
halt, usbhs_pipe_number(pipe));
/******************** spin lock ********************/
usbhs_lock(priv, flags);
if (halt)
usbhs_pipe_stall(pipe);
else
usbhs_pipe_disable(pipe);
if (halt && wedge)
usbhsg_status_set(gpriv, USBHSG_STATUS_WEDGE);
else
usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE);
usbhs_unlock(priv, flags);
/******************** spin unlock ******************/
return 0;
}
static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status)
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct usbhs_mod *mod = usbhs_mod_get_current(priv);
struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
struct device *dev = usbhs_priv_to_dev(priv);
spinlock_t *lock;
unsigned long flags;
/******************** spin lock ********************/
lock = usbhsg_trylock(gpriv, &flags);
/*
* disable interrupt and systems if 1st try
*/
usbhsg_status_clr(gpriv, status);
if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
!usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))
goto usbhsg_try_stop_unlock;
/* disable all irq */
mod->irq_dev_state = NULL;
mod->irq_ctrl_stage = NULL;
mod->irq_empty = NULL;
mod->irq_ready = NULL;
mod->irq_bempsts = 0;
mod->irq_brdysts = 0;
usbhs_irq_callback_update(priv, mod);
usbhsg_dcp_disable(dcp);
gpriv->gadget.speed = USB_SPEED_UNKNOWN;
/* disable sys */
usbhs_sys_hispeed_ctrl(priv, 0);
usbhs_sys_function_ctrl(priv, 0);
usbhs_sys_usb_ctrl(priv, 0);
usbhsg_unlock(lock, &flags);
/******************** spin unlock ********************/
if (gpriv->driver &&
gpriv->driver->disconnect)
gpriv->driver->disconnect(&gpriv->gadget);
dev_dbg(dev, "stop gadget\n");
return 0;
usbhsg_try_stop_unlock:
usbhsg_unlock(lock, &flags);
return 0;
}
static int usbhsg_set_selfpowered(struct usb_gadget *gadget, int is_self)
{
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
if (is_self)
usbhsg_status_set(gpriv, USBHSG_STATUS_SELF_POWERED);
else
usbhsg_status_clr(gpriv, USBHSG_STATUS_SELF_POWERED);
return 0;
}
static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status)
{
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
struct usbhs_mod *mod = usbhs_mod_get_current(priv);
struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
struct device *dev = usbhs_priv_to_dev(priv);
unsigned long flags;
int ret = 0;
/******************** spin lock ********************/
usbhs_lock(priv, flags);
usbhsg_status_clr(gpriv, status);
if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
!usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))
ret = -1; /* already done */
usbhs_unlock(priv, flags);
/******************** spin unlock ********************/
if (ret < 0)
return 0; /* already done is not error */
/*
* disable interrupt and systems if 1st try
*/
usbhs_fifo_quit(priv);
/* disable all irq */
mod->irq_dev_state = NULL;
mod->irq_ctrl_stage = NULL;
usbhs_irq_callback_update(priv, mod);
gpriv->gadget.speed = USB_SPEED_UNKNOWN;
/* disable sys */
usbhs_sys_hispeed_ctrl(priv, 0);
usbhs_sys_function_ctrl(priv, 0);
usbhs_sys_usb_ctrl(priv, 0);
usbhsg_pipe_disable(dcp);
if (gpriv->driver &&
gpriv->driver->disconnect)
gpriv->driver->disconnect(&gpriv->gadget);
dev_dbg(dev, "stop gadget\n");
return 0;
}
static int usbhsg_pullup(struct usb_gadget *gadget, int is_on)
{
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
unsigned long flags;
usbhs_lock(priv, flags);
if (is_on)
usbhsg_status_set(gpriv, USBHSG_STATUS_SOFT_CONNECT);
else
usbhsg_status_clr(gpriv, USBHSG_STATUS_SOFT_CONNECT);
usbhsg_update_pullup(priv);
usbhs_unlock(priv, flags);
return 0;
}
static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge)
{
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
spinlock_t *lock;
unsigned long flags;
int ret = -EAGAIN;
/*
* see
* CAUTION [*queue handler*]
* CAUTION [*endpoint queue*]
* CAUTION [*request complete*]
*/
/******************** spin lock ********************/
lock = usbhsg_trylock(gpriv, &flags);
if (!usbhsg_queue_get(uep)) {
dev_dbg(dev, "set halt %d (pipe %d)\n",
halt, usbhs_pipe_number(pipe));
if (halt)
usbhs_fifo_stall(pipe);
else
usbhs_fifo_disable(pipe);
if (halt && wedge)
usbhsg_status_set(gpriv, USBHSG_STATUS_WEDGE);
else
usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE);
ret = 0;
}
usbhsg_unlock(lock, &flags);
/******************** spin unlock ******************/
return ret;
}