summaryrefslogtreecommitdiff
path: root/drivers/usb/chipidea/udc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/chipidea/udc.c')
-rw-r--r--drivers/usb/chipidea/udc.c69
1 files changed, 36 insertions, 33 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 7739c64ef259..69425b3cb6b7 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -20,6 +20,7 @@
#include <linux/pm_runtime.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
+#include <linux/usb/otg-fsm.h>
#include <linux/usb/chipidea.h>
#include "ci.h"
@@ -27,6 +28,7 @@
#include "bits.h"
#include "debug.h"
#include "otg.h"
+#include "otg_fsm.h"
/* control endpoint description */
static const struct usb_endpoint_descriptor
@@ -242,26 +244,6 @@ static int hw_port_is_high_speed(struct ci_hdrc *ci)
}
/**
- * hw_read_intr_enable: returns interrupt enable register
- *
- * This function returns register data
- */
-static u32 hw_read_intr_enable(struct ci_hdrc *ci)
-{
- return hw_read(ci, OP_USBINTR, ~0);
-}
-
-/**
- * hw_read_intr_status: returns interrupt status register
- *
- * This function returns register data
- */
-static u32 hw_read_intr_status(struct ci_hdrc *ci)
-{
- return hw_read(ci, OP_USBSTS, ~0);
-}
-
-/**
* hw_test_and_clear_complete: test & clear complete status (execute without
* interruption)
* @n: endpoint number
@@ -727,6 +709,8 @@ __acquires(ci->lock)
if (ci->status == NULL)
retval = -ENOMEM;
+ usb_gadget_set_state(&ci->gadget, USB_STATE_DEFAULT);
+
done:
spin_lock(&ci->lock);
@@ -841,7 +825,6 @@ __acquires(hwep->lock)
if ((setup->bRequestType & USB_RECIP_MASK) == USB_RECIP_DEVICE) {
/* Assume that device is bus powered for now. */
*(u16 *)req->buf = ci->remote_wakeup << 1;
- retval = 0;
} else if ((setup->bRequestType & USB_RECIP_MASK) \
== USB_RECIP_ENDPOINT) {
dir = (le16_to_cpu(setup->wIndex) & USB_ENDPOINT_DIR_MASK) ?
@@ -883,6 +866,8 @@ isr_setup_status_complete(struct usb_ep *ep, struct usb_request *req)
if (ci->setaddr) {
hw_usb_set_address(ci, ci->address);
ci->setaddr = false;
+ if (ci->address)
+ usb_gadget_set_state(&ci->gadget, USB_STATE_ADDRESS);
}
spin_lock_irqsave(&ci->lock, flags);
@@ -1072,6 +1057,14 @@ __acquires(ci->lock)
default:
break;
}
+ break;
+ case USB_DEVICE_B_HNP_ENABLE:
+ if (ci_otg_is_fsm_mode(ci)) {
+ ci->gadget.b_hnp_enable = 1;
+ err = isr_setup_status_phase(
+ ci);
+ }
+ break;
default:
goto delegate;
}
@@ -1477,7 +1470,7 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
pm_runtime_get_sync(&_gadget->dev);
hw_device_reset(ci, USBMODE_CM_DC);
hw_device_state(ci, ci->ep0out->qh.dma);
- dev_dbg(ci->dev, "Connected to host\n");
+ usb_gadget_set_state(_gadget, USB_STATE_POWERED);
} else {
if (ci->driver)
ci->driver->disconnect(&ci->gadget);
@@ -1487,7 +1480,7 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
CI_HDRC_CONTROLLER_STOPPED_EVENT);
_gadget_stop_activity(&ci->gadget);
pm_runtime_put_sync(&_gadget->dev);
- dev_dbg(ci->dev, "Disconnected from host\n");
+ usb_gadget_set_state(_gadget, USB_STATE_NOTATTACHED);
}
}
@@ -1655,6 +1648,13 @@ static int ci_udc_start(struct usb_gadget *gadget,
return retval;
ci->driver = driver;
+
+ /* Start otg fsm for B-device */
+ if (ci_otg_is_fsm_mode(ci) && ci->fsm.id) {
+ ci_hdrc_otg_fsm_start(ci);
+ return retval;
+ }
+
pm_runtime_get_sync(&ci->gadget.dev);
if (ci->vbus_active) {
spin_lock_irqsave(&ci->lock, flags);
@@ -1753,6 +1753,8 @@ static irqreturn_t udc_irq(struct ci_hdrc *ci)
ci->suspended = 1;
spin_unlock(&ci->lock);
ci->driver->suspend(&ci->gadget);
+ usb_gadget_set_state(&ci->gadget,
+ USB_STATE_SUSPENDED);
spin_lock(&ci->lock);
}
}
@@ -1779,7 +1781,7 @@ static int udc_start(struct ci_hdrc *ci)
ci->gadget.ops = &usb_gadget_ops;
ci->gadget.speed = USB_SPEED_UNKNOWN;
ci->gadget.max_speed = USB_SPEED_HIGH;
- ci->gadget.is_otg = 0;
+ ci->gadget.is_otg = ci->is_otg ? 1 : 0;
ci->gadget.name = ci->platdata->name;
INIT_LIST_HEAD(&ci->gadget.ep_list);
@@ -1843,21 +1845,22 @@ void ci_hdrc_gadget_destroy(struct ci_hdrc *ci)
static int udc_id_switch_for_device(struct ci_hdrc *ci)
{
- if (ci->is_otg) {
- ci_clear_otg_interrupt(ci, OTGSC_BSVIS);
- ci_enable_otg_interrupt(ci, OTGSC_BSVIE);
- }
+ if (ci->is_otg)
+ /* Clear and enable BSV irq */
+ hw_write_otgsc(ci, OTGSC_BSVIS | OTGSC_BSVIE,
+ OTGSC_BSVIS | OTGSC_BSVIE);
return 0;
}
static void udc_id_switch_for_host(struct ci_hdrc *ci)
{
- if (ci->is_otg) {
- /* host doesn't care B_SESSION_VALID event */
- ci_clear_otg_interrupt(ci, OTGSC_BSVIS);
- ci_disable_otg_interrupt(ci, OTGSC_BSVIE);
- }
+ /*
+ * host doesn't care B_SESSION_VALID event
+ * so clear and disbale BSV irq
+ */
+ if (ci->is_otg)
+ hw_write_otgsc(ci, OTGSC_BSVIE | OTGSC_BSVIS, OTGSC_BSVIS);
}
/**