100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
|
/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 and
|
||
|
|
* only version 2 as published by the Free Software Foundation.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
#include <linux/pm_runtime.h>
|
||
|
|
#include <linux/usb/msm_hsusb_hw.h>
|
||
|
|
#include <linux/usb/ulpi.h>
|
||
|
|
#include <linux/usb/gadget.h>
|
||
|
|
#include <linux/usb/chipidea.h>
|
||
|
|
|
||
|
|
#include "ci.h"
|
||
|
|
|
||
|
|
#define MSM_USB_BASE (ci->hw_bank.abs)
|
||
|
|
|
||
|
|
static void ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event)
|
||
|
|
{
|
||
|
|
struct device *dev = ci->gadget.dev.parent;
|
||
|
|
int val;
|
||
|
|
|
||
|
|
switch (event) {
|
||
|
|
case CI_HDRC_CONTROLLER_RESET_EVENT:
|
||
|
|
dev_dbg(dev, "CI_HDRC_CONTROLLER_RESET_EVENT received\n");
|
||
|
|
writel(0, USB_AHBBURST);
|
||
|
|
writel(0, USB_AHBMODE);
|
||
|
|
break;
|
||
|
|
case CI_HDRC_CONTROLLER_STOPPED_EVENT:
|
||
|
|
dev_dbg(dev, "CI_HDRC_CONTROLLER_STOPPED_EVENT received\n");
|
||
|
|
/*
|
||
|
|
* Put the transceiver in non-driving mode. Otherwise host
|
||
|
|
* may not detect soft-disconnection.
|
||
|
|
*/
|
||
|
|
val = usb_phy_io_read(ci->transceiver, ULPI_FUNC_CTRL);
|
||
|
|
val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
|
||
|
|
val |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
|
||
|
|
usb_phy_io_write(ci->transceiver, val, ULPI_FUNC_CTRL);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
dev_dbg(dev, "unknown ci_hdrc event\n");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct ci_hdrc_platform_data ci_hdrc_msm_platdata = {
|
||
|
|
.name = "ci_hdrc_msm",
|
||
|
|
.flags = CI_HDRC_REGS_SHARED |
|
||
|
|
CI_HDRC_REQUIRE_TRANSCEIVER |
|
||
|
|
CI_HDRC_DISABLE_STREAMING,
|
||
|
|
|
||
|
|
.notify_event = ci_hdrc_msm_notify_event,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int ci_hdrc_msm_probe(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct platform_device *plat_ci;
|
||
|
|
|
||
|
|
dev_dbg(&pdev->dev, "ci_hdrc_msm_probe\n");
|
||
|
|
|
||
|
|
plat_ci = ci_hdrc_add_device(&pdev->dev,
|
||
|
|
pdev->resource, pdev->num_resources,
|
||
|
|
&ci_hdrc_msm_platdata);
|
||
|
|
if (IS_ERR(plat_ci)) {
|
||
|
|
dev_err(&pdev->dev, "ci_hdrc_add_device failed!\n");
|
||
|
|
return PTR_ERR(plat_ci);
|
||
|
|
}
|
||
|
|
|
||
|
|
platform_set_drvdata(pdev, plat_ci);
|
||
|
|
|
||
|
|
pm_runtime_no_callbacks(&pdev->dev);
|
||
|
|
pm_runtime_enable(&pdev->dev);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ci_hdrc_msm_remove(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct platform_device *plat_ci = platform_get_drvdata(pdev);
|
||
|
|
|
||
|
|
pm_runtime_disable(&pdev->dev);
|
||
|
|
ci_hdrc_remove_device(plat_ci);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct platform_driver ci_hdrc_msm_driver = {
|
||
|
|
.probe = ci_hdrc_msm_probe,
|
||
|
|
.remove = ci_hdrc_msm_remove,
|
||
|
|
.driver = { .name = "msm_hsusb", },
|
||
|
|
};
|
||
|
|
|
||
|
|
module_platform_driver(ci_hdrc_msm_driver);
|
||
|
|
|
||
|
|
MODULE_ALIAS("platform:msm_hsusb");
|
||
|
|
MODULE_ALIAS("platform:ci13xxx_msm");
|
||
|
|
MODULE_LICENSE("GPL v2");
|