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path: root/drivers/usb/musb/musb_gadget.c
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Diffstat (limited to 'drivers/usb/musb/musb_gadget.c')
-rw-r--r--drivers/usb/musb/musb_gadget.c58
1 files changed, 27 insertions, 31 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 24c8c0219790..49b04cb6f5ca 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1546,7 +1546,7 @@ static int musb_gadget_wakeup(struct usb_gadget *gadget)
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_PERIPHERAL:
/* NOTE: OTG state machine doesn't include B_SUSPENDED;
* that's part of the standard usb 1.1 state machine, and
@@ -1587,7 +1587,7 @@ static int musb_gadget_wakeup(struct usb_gadget *gadget)
goto done;
default:
dev_dbg(musb->controller, "Unhandled wake: %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
goto done;
}
@@ -1684,8 +1684,7 @@ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
static int musb_gadget_start(struct usb_gadget *g,
struct usb_gadget_driver *driver);
-static int musb_gadget_stop(struct usb_gadget *g,
- struct usb_gadget_driver *driver);
+static int musb_gadget_stop(struct usb_gadget *g);
static const struct usb_gadget_ops musb_gadget_operations = {
.get_frame = musb_gadget_get_frame,
@@ -1792,7 +1791,7 @@ int musb_gadget_setup(struct musb *musb)
MUSB_DEV_MODE(musb);
musb->xceiv->otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
/* this "gadget" abstracts/virtualizes the controller */
musb->g.name = musb_driver_name;
@@ -1851,8 +1850,6 @@ static int musb_gadget_start(struct usb_gadget *g,
pm_runtime_get_sync(musb->controller);
- dev_dbg(musb->controller, "registering driver %s\n", driver->function);
-
musb->softconnect = 0;
musb->gadget_driver = driver;
@@ -1860,7 +1857,7 @@ static int musb_gadget_start(struct usb_gadget *g,
musb->is_active = 1;
otg_set_peripheral(otg, &musb->g);
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
spin_unlock_irqrestore(&musb->lock, flags);
musb_start(musb);
@@ -1925,8 +1922,7 @@ static void stop_activity(struct musb *musb, struct usb_gadget_driver *driver)
*
* @param driver the gadget driver to unregister
*/
-static int musb_gadget_stop(struct usb_gadget *g,
- struct usb_gadget_driver *driver)
+static int musb_gadget_stop(struct usb_gadget *g)
{
struct musb *musb = gadget_to_musb(g);
unsigned long flags;
@@ -1945,13 +1941,10 @@ static int musb_gadget_stop(struct usb_gadget *g,
(void) musb_gadget_vbus_draw(&musb->g, 0);
- musb->xceiv->state = OTG_STATE_UNDEFINED;
- stop_activity(musb, driver);
+ musb->xceiv->otg->state = OTG_STATE_UNDEFINED;
+ stop_activity(musb, NULL);
otg_set_peripheral(musb->xceiv->otg, NULL);
- dev_dbg(musb->controller, "unregistering driver %s\n",
- driver ? driver->function : "(removed)");
-
musb->is_active = 0;
musb->gadget_driver = NULL;
musb_platform_try_idle(musb, 0);
@@ -1975,7 +1968,7 @@ static int musb_gadget_stop(struct usb_gadget *g,
void musb_g_resume(struct musb *musb)
{
musb->is_suspended = 0;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_IDLE:
break;
case OTG_STATE_B_WAIT_ACON:
@@ -1989,7 +1982,7 @@ void musb_g_resume(struct musb *musb)
break;
default:
WARNING("unhandled RESUME transition (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
@@ -2001,10 +1994,10 @@ void musb_g_suspend(struct musb *musb)
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
dev_dbg(musb->controller, "devctl %02x\n", devctl);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_IDLE:
if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
break;
case OTG_STATE_B_PERIPHERAL:
musb->is_suspended = 1;
@@ -2019,7 +2012,7 @@ void musb_g_suspend(struct musb *musb)
* A_PERIPHERAL may need care too
*/
WARNING("unhandled SUSPEND transition (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
@@ -2050,22 +2043,22 @@ void musb_g_disconnect(struct musb *musb)
spin_lock(&musb->lock);
}
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
default:
dev_dbg(musb->controller, "Unhandled disconnect %s, setting a_idle\n",
- usb_otg_state_string(musb->xceiv->state));
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ usb_otg_state_string(musb->xceiv->otg->state));
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
break;
case OTG_STATE_A_PERIPHERAL:
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
MUSB_HST_MODE(musb);
break;
case OTG_STATE_B_WAIT_ACON:
case OTG_STATE_B_HOST:
case OTG_STATE_B_PERIPHERAL:
case OTG_STATE_B_IDLE:
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
break;
case OTG_STATE_B_SRP_INIT:
break;
@@ -2090,9 +2083,12 @@ __acquires(musb->lock)
: NULL
);
- /* report disconnect, if we didn't already (flushing EP state) */
- if (musb->g.speed != USB_SPEED_UNKNOWN)
- musb_g_disconnect(musb);
+ /* report reset, if we didn't already (flushing EP state) */
+ if (musb->gadget_driver && musb->g.speed != USB_SPEED_UNKNOWN) {
+ spin_unlock(&musb->lock);
+ usb_gadget_udc_reset(&musb->g, musb->gadget_driver);
+ spin_lock(&musb->lock);
+ }
/* clear HR */
else if (devctl & MUSB_DEVCTL_HR)
@@ -2125,13 +2121,13 @@ __acquires(musb->lock)
* In that case, do not rely on devctl for setting
* peripheral mode.
*/
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb->g.is_a_peripheral = 0;
} else if (devctl & MUSB_DEVCTL_BDEVICE) {
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb->g.is_a_peripheral = 0;
} else {
- musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_A_PERIPHERAL;
musb->g.is_a_peripheral = 1;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 21:09:54 +0100