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usb: chipidea: add vbus interrupt handler

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We add vbus interrupt handler at ci_otg_work, it uses OTGSC_BSV(at otgsc)
to know it is connect or disconnet event.
Meanwhile, we introduce two flags id_event and b_sess_valid_event to
indicate it is an id interrupt or a vbus interrupt.

Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Chen
2013-08-14 12:44:11 +03:00
committed by Greg Kroah-Hartman
parent cbec6bd55a
commit a107f8c505
5 changed files with 72 additions and 13 deletions
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7
drivers/usb/chipidea/udc.c
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@@ -85,8 +85,10 @@ static int hw_device_state(struct ci_hdrc *ci, u32 dma)
/* interrupt, error, port change, reset, sleep/suspend */
hw_write(ci, OP_USBINTR, ~0,
USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI);
hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);
} else {
hw_write(ci, OP_USBINTR, ~0, 0);
hw_write(ci, OP_USBCMD, USBCMD_RS, 0);
}
return 0;
}
@@ -1460,6 +1462,7 @@ 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");
} else {
hw_device_state(ci, 0);
if (ci->platdata->notify_event)
@@ -1467,6 +1470,7 @@ 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");
}
}
@@ -1822,6 +1826,9 @@ static int udc_start(struct ci_hdrc *ci)
pm_runtime_no_callbacks(&ci->gadget.dev);
pm_runtime_enable(&ci->gadget.dev);
/* Update ci->vbus_active */
ci_handle_vbus_change(ci);
return retval;
remove_trans: