633 lines
14 KiB
C
Executable File
633 lines
14 KiB
C
Executable File
/*
|
|
* drivers/usb/host/ohci_sunxi.c
|
|
* (C) Copyright 2010-2015
|
|
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
|
|
* yangnaitian, 2011-5-24, create this file
|
|
* javen, 2011-6-26, add suspend and resume
|
|
* javen, 2011-7-18, move clock and power operations out from driver
|
|
*
|
|
* OHCI Driver
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
*/
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/signal.h>
|
|
|
|
#include <linux/time.h>
|
|
#include <linux/timer.h>
|
|
|
|
#include <linux/clk.h>
|
|
|
|
#ifdef CONFIG_PM
|
|
#include <linux/arisc/arisc.h>
|
|
#include <linux/power/aw_pm.h>
|
|
#include <linux/power/scenelock.h>
|
|
static struct scene_lock ohci_standby_lock[4];
|
|
#endif
|
|
#include "sunxi_hci.h"
|
|
|
|
#define SUNXI_OHCI_NAME "sunxi-ohci"
|
|
static const char ohci_name[] = SUNXI_OHCI_NAME;
|
|
|
|
#if defined CONFIG_USB_SUNXI_OHCI0 && !defined SUNXI_USB_FPGA
|
|
#define SUNXI_OHCI0_OF_MATCH "allwinner,sunxi-ohci0"
|
|
#else
|
|
#define SUNXI_OHCI0_OF_MATCH "null"
|
|
#endif
|
|
|
|
|
|
#if defined CONFIG_USB_SUNXI_OHCI1 && !defined SUNXI_USB_FPGA
|
|
#define SUNXI_OHCI1_OF_MATCH "allwinner,sunxi-ohci1"
|
|
#else
|
|
#define SUNXI_OHCI1_OF_MATCH "null"
|
|
#endif
|
|
|
|
static struct sunxi_hci_hcd *g_sunxi_ohci[4];
|
|
static u32 ohci_first_probe[4] = {1, 1, 1, 1};
|
|
static u32 ohci_enable[4] = {1, 1, 1, 1};
|
|
|
|
extern int usb_disabled(void);
|
|
int sunxi_usb_disable_ohci(__u32 usbc_no);
|
|
int sunxi_usb_enable_ohci(__u32 usbc_no);
|
|
|
|
static ssize_t ohci_enable_show(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct sunxi_hci_hcd *sunxi_ohci = NULL;
|
|
|
|
if(dev == NULL){
|
|
DMSG_PANIC("ERR: Argment is invalid\n");
|
|
return 0;
|
|
}
|
|
|
|
sunxi_ohci = dev->platform_data;
|
|
if(sunxi_ohci == NULL){
|
|
DMSG_PANIC("ERR: sw_ohci is null\n");
|
|
return 0;
|
|
}
|
|
|
|
return sprintf(buf, "ohci:%d,probe:%u\n", sunxi_ohci->usbc_no, sunxi_ohci->probe);
|
|
}
|
|
|
|
static ssize_t ohci_enable_store(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sunxi_hci_hcd *sunxi_ohci = NULL;
|
|
int value = 0;
|
|
|
|
if(dev == NULL){
|
|
DMSG_PANIC("ERR: Argment is invalid\n");
|
|
return 0;
|
|
}
|
|
|
|
sunxi_ohci = dev->platform_data;
|
|
if(sunxi_ohci == NULL){
|
|
DMSG_PANIC("ERR: sw_ohci is null\n");
|
|
return 0;
|
|
}
|
|
|
|
sunxi_ohci->host_init_state = 0;
|
|
ohci_first_probe[sunxi_ohci->usbc_no] = 0;
|
|
|
|
sscanf(buf, "%d", &value);
|
|
if(value == 1){
|
|
ohci_enable[sunxi_ohci->usbc_no] = 0;
|
|
sunxi_usb_enable_ohci(sunxi_ohci->usbc_no);
|
|
|
|
if(sunxi_ohci->usbc_no == HCI0_USBC_NO){
|
|
sunxi_set_host_vbus(sunxi_ohci, 1);
|
|
}
|
|
|
|
}else if(value == 0){
|
|
ohci_enable[sunxi_ohci->usbc_no] = 1;
|
|
sunxi_usb_disable_ohci(sunxi_ohci->usbc_no);
|
|
ohci_enable[sunxi_ohci->usbc_no] = 0;
|
|
}else{
|
|
DMSG_INFO("unkown value (%d)\n", value);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(ohci_enable, 0644, ohci_enable_show, ohci_enable_store);
|
|
|
|
|
|
static int open_ohci_clock(struct sunxi_hci_hcd *sunxi_ohci)
|
|
{
|
|
return sunxi_ohci->open_clock(sunxi_ohci, 1);
|
|
}
|
|
|
|
static int close_ohci_clock(struct sunxi_hci_hcd *sunxi_ohci)
|
|
{
|
|
return sunxi_ohci->close_clock(sunxi_ohci, 1);
|
|
}
|
|
|
|
static void sunxi_start_ohci(struct sunxi_hci_hcd *sunxi_ohci)
|
|
{
|
|
open_ohci_clock(sunxi_ohci);
|
|
sunxi_ohci->usb_passby(sunxi_ohci, 1);
|
|
sunxi_ohci->set_power(sunxi_ohci, 1);
|
|
|
|
return;
|
|
}
|
|
|
|
static void sunxi_stop_ohci(struct sunxi_hci_hcd *sunxi_ohci)
|
|
{
|
|
sunxi_ohci->set_power(sunxi_ohci, 0);
|
|
sunxi_ohci->usb_passby(sunxi_ohci, 0);
|
|
close_ohci_clock(sunxi_ohci);
|
|
|
|
return;
|
|
}
|
|
|
|
static int sunxi_ohci_start(struct usb_hcd *hcd)
|
|
{
|
|
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
|
|
int ret;
|
|
|
|
if ((ret = ohci_init(ohci)) < 0)
|
|
return ret;
|
|
|
|
if ((ret = ohci_run(ohci)) < 0) {
|
|
DMSG_PANIC("can't start %s", hcd->self.bus_name);
|
|
ohci_stop(hcd);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct hc_driver sunxi_ohci_hc_driver ={
|
|
.description = hcd_name,
|
|
.product_desc = "SW USB2.0 'Open' Host Controller (OHCI) Driver",
|
|
.hcd_priv_size = sizeof(struct ohci_hcd),
|
|
|
|
/*
|
|
* generic hardware linkage
|
|
*/
|
|
.irq = ohci_irq,
|
|
.flags = HCD_USB11 | HCD_MEMORY,
|
|
|
|
/*
|
|
* basic lifecycle operations
|
|
*/
|
|
.start = sunxi_ohci_start,
|
|
.stop = ohci_stop,
|
|
.shutdown = ohci_shutdown,
|
|
|
|
/*
|
|
* managing i/o requests and associated device resources
|
|
*/
|
|
.urb_enqueue = ohci_urb_enqueue,
|
|
.urb_dequeue = ohci_urb_dequeue,
|
|
.endpoint_disable = ohci_endpoint_disable,
|
|
|
|
/*
|
|
* scheduling support
|
|
*/
|
|
.get_frame_number = ohci_get_frame,
|
|
|
|
/*
|
|
* root hub support
|
|
*/
|
|
.hub_status_data = ohci_hub_status_data,
|
|
.hub_control = ohci_hub_control,
|
|
|
|
#ifdef CONFIG_PM
|
|
.bus_suspend = ohci_bus_suspend,
|
|
.bus_resume = ohci_bus_resume,
|
|
#endif
|
|
.start_port_reset = ohci_start_port_reset,
|
|
};
|
|
|
|
static int sunxi_insmod_ohci(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
struct usb_hcd *hcd = NULL;
|
|
struct sunxi_hci_hcd *sunxi_ohci = NULL;
|
|
|
|
if(pdev == NULL){
|
|
DMSG_PANIC("ERR: Argment is invaild\n");
|
|
return -1;
|
|
}
|
|
|
|
/* if usb is disabled, can not probe */
|
|
if (usb_disabled()){
|
|
DMSG_PANIC("ERR: usb hcd is disabled\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
sunxi_ohci = pdev->dev.platform_data;
|
|
if(!sunxi_ohci){
|
|
DMSG_PANIC("ERR: sunxi_ohci is null\n");
|
|
ret = -ENOMEM;
|
|
goto ERR1;
|
|
}
|
|
|
|
sunxi_ohci->pdev = pdev;
|
|
g_sunxi_ohci[sunxi_ohci->usbc_no] = sunxi_ohci;
|
|
|
|
DMSG_INFO("[%s%d]: probe, pdev->name: %s, sunxi_ohci: 0x%p\n",
|
|
ohci_name, sunxi_ohci->usbc_no, pdev->name, sunxi_ohci);
|
|
|
|
sunxi_ohci->ohci_base = sunxi_ohci->usb_vbase + SUNXI_USB_OHCI_BASE_OFFSET;
|
|
|
|
sunxi_ohci->ohci_reg_length = SUNXI_USB_OHCI_LEN;
|
|
|
|
/*creat a usb_hcd for the ohci controller*/
|
|
hcd = usb_create_hcd(&sunxi_ohci_hc_driver, &pdev->dev, ohci_name);
|
|
if(!hcd){
|
|
DMSG_PANIC("ERR: usb_ohci_create_hcd failed\n");
|
|
ret = -ENOMEM;
|
|
goto ERR2;
|
|
}
|
|
|
|
hcd->rsrc_start = sunxi_ohci->usb_base_res->start;
|
|
hcd->rsrc_len = SUNXI_USB_OHCI_LEN;
|
|
hcd->regs = sunxi_ohci->ohci_base;
|
|
sunxi_ohci->hcd = hcd;
|
|
|
|
/* ochi start to work */
|
|
sunxi_start_ohci(sunxi_ohci);
|
|
|
|
ohci_hcd_init(hcd_to_ohci(hcd));
|
|
|
|
ret = usb_add_hcd(hcd, sunxi_ohci->irq_no, IRQF_DISABLED | IRQF_SHARED);
|
|
if(ret != 0){
|
|
DMSG_PANIC("ERR: usb_add_hcd failed\n");
|
|
ret = -ENOMEM;
|
|
goto ERR3;
|
|
}
|
|
|
|
platform_set_drvdata(pdev, hcd);
|
|
|
|
#ifndef USB_SYNC_SUSPEND
|
|
device_enable_async_suspend(&pdev->dev);
|
|
#endif
|
|
|
|
sunxi_ohci->probe = 1;
|
|
|
|
#ifdef CONFIG_PM
|
|
if(sunxi_ohci->wakeup_suspend){
|
|
scene_lock_init(&ohci_standby_lock[sunxi_ohci->usbc_no], SCENE_USB_STANDBY, "ohci_standby");
|
|
}
|
|
#endif
|
|
/* Disable ohci, when driver probe */
|
|
if(sunxi_ohci->host_init_state == 0){
|
|
if(ohci_first_probe[sunxi_ohci->usbc_no]){
|
|
sunxi_usb_disable_ohci(sunxi_ohci->usbc_no);
|
|
ohci_first_probe[sunxi_ohci->usbc_no] = 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
ERR3:
|
|
usb_put_hcd(hcd);
|
|
sunxi_stop_ohci(sunxi_ohci);
|
|
|
|
ERR2:
|
|
sunxi_ohci->hcd = NULL;
|
|
|
|
ERR1:
|
|
return ret;
|
|
}
|
|
|
|
static int sunxi_rmmod_ohci(struct platform_device *pdev)
|
|
{
|
|
struct usb_hcd *hcd = NULL;
|
|
struct sunxi_hci_hcd *sunxi_ohci = NULL;
|
|
|
|
if(pdev == NULL){
|
|
DMSG_PANIC("ERR: Argment is invalid\n");
|
|
return -1;
|
|
}
|
|
|
|
hcd = platform_get_drvdata(pdev);
|
|
if(hcd == NULL){
|
|
DMSG_PANIC("ERR: hcd is null\n");
|
|
return -1;
|
|
}
|
|
|
|
sunxi_ohci = pdev->dev.platform_data;
|
|
if(sunxi_ohci == NULL){
|
|
DMSG_PANIC("ERR: sunxi_ohci is null\n");
|
|
return -1;
|
|
}
|
|
|
|
DMSG_INFO("[%s%d]: remove, pdev->name: %s, sunxi_ohci: 0x%p\n",
|
|
ohci_name, sunxi_ohci->usbc_no, pdev->name, sunxi_ohci);
|
|
#ifdef CONFIG_PM
|
|
if(sunxi_ohci->wakeup_suspend){
|
|
scene_lock_destroy(&ohci_standby_lock[sunxi_ohci->usbc_no]);
|
|
}
|
|
#endif
|
|
|
|
usb_remove_hcd(hcd);
|
|
|
|
sunxi_stop_ohci(sunxi_ohci);
|
|
sunxi_ohci->probe = 0;
|
|
|
|
usb_put_hcd(hcd);
|
|
|
|
sunxi_ohci->hcd = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int sunxi_ohci_hcd_probe(struct platform_device *pdev)
|
|
{
|
|
int ret = 0;
|
|
struct sunxi_hci_hcd *sunxi_ohci = NULL;
|
|
|
|
if(pdev == NULL){
|
|
DMSG_PANIC("ERR: %s, Argment is invalid\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
/* if usb is disabled, can not probe */
|
|
if (usb_disabled()) {
|
|
DMSG_PANIC("ERR: usb hcd is disabled\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
ret = init_sunxi_hci(pdev, SUNXI_USB_OHCI);
|
|
if(ret != 0){
|
|
dev_err(&pdev->dev, "init_sunxi_hci is fail\n");
|
|
return 0;
|
|
}
|
|
|
|
sunxi_insmod_ohci(pdev);
|
|
|
|
|
|
sunxi_ohci = pdev->dev.platform_data;
|
|
if(sunxi_ohci == NULL){
|
|
DMSG_PANIC("ERR: %s, sunxi_ohci is null\n", __func__);
|
|
return -1;
|
|
}
|
|
if(ohci_enable[sunxi_ohci->usbc_no]){
|
|
device_create_file(&pdev->dev, &dev_attr_ohci_enable);
|
|
ohci_enable[sunxi_ohci->usbc_no] = 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sunxi_ohci_hcd_remove(struct platform_device *pdev)
|
|
{
|
|
struct sunxi_hci_hcd *sunxi_ohci = NULL;
|
|
|
|
if(pdev == NULL){
|
|
DMSG_PANIC("ERR: %s, Argment is invalid\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
sunxi_ohci = pdev->dev.platform_data;
|
|
if(sunxi_ohci == NULL){
|
|
DMSG_PANIC("ERR: %s, sunxi_ohci is null\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
if(ohci_enable[sunxi_ohci->usbc_no] == 0){
|
|
device_remove_file(&pdev->dev, &dev_attr_ohci_enable);
|
|
}
|
|
|
|
return sunxi_rmmod_ohci(pdev);
|
|
}
|
|
|
|
static void sunxi_ohci_hcd_shutdown(struct platform_device* pdev)
|
|
{
|
|
struct sunxi_hci_hcd *sunxi_ohci = NULL;
|
|
|
|
sunxi_ohci = pdev->dev.platform_data;
|
|
if(sunxi_ohci == NULL){
|
|
DMSG_PANIC("ERR: sunxi_ohci is null\n");
|
|
return ;
|
|
}
|
|
|
|
if(sunxi_ohci->probe == 0){
|
|
DMSG_PANIC("ERR: %s, %s is disable, need not shutdown\n", __func__, sunxi_ohci->hci_name);
|
|
return ;
|
|
}
|
|
|
|
DMSG_INFO("[%s]: ohci shutdown start\n", sunxi_ohci->hci_name);
|
|
|
|
#ifdef CONFIG_PM
|
|
if(sunxi_ohci->wakeup_suspend){
|
|
scene_lock_destroy(&ohci_standby_lock[sunxi_ohci->usbc_no]);
|
|
}
|
|
#endif
|
|
usb_hcd_platform_shutdown(pdev);
|
|
sunxi_stop_ohci(sunxi_ohci);
|
|
|
|
DMSG_INFO("[%s]: ohci shutdown end\n", sunxi_ohci->hci_name);
|
|
|
|
return;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
|
|
static int sunxi_ohci_hcd_suspend(struct device *dev)
|
|
{
|
|
struct sunxi_hci_hcd *sunxi_ohci = NULL;
|
|
struct usb_hcd *hcd = NULL;
|
|
struct ohci_hcd *ohci = NULL;
|
|
int val = 0;
|
|
|
|
if(dev == NULL){
|
|
DMSG_PANIC("ERR: Argment is invalid\n");
|
|
return 0;
|
|
}
|
|
|
|
hcd = dev_get_drvdata(dev);
|
|
if(hcd == NULL){
|
|
DMSG_PANIC("ERR: hcd is null\n");
|
|
return 0;
|
|
}
|
|
|
|
sunxi_ohci = dev->platform_data;
|
|
if(sunxi_ohci == NULL){
|
|
DMSG_PANIC("ERR: sunxi_ohci is null\n");
|
|
return 0;
|
|
}
|
|
|
|
if(sunxi_ohci->probe == 0){
|
|
DMSG_PANIC("[%s]: is disable, can not suspend\n", sunxi_ohci->hci_name);
|
|
return 0;
|
|
}
|
|
|
|
ohci = hcd_to_ohci(hcd);
|
|
if(ohci == NULL){
|
|
DMSG_PANIC("ERR: ohci is null\n");
|
|
return 0;
|
|
}
|
|
|
|
if(sunxi_ohci->wakeup_suspend){
|
|
DMSG_INFO("[%s]: not suspend\n", sunxi_ohci->hci_name);
|
|
scene_lock(&ohci_standby_lock[sunxi_ohci->usbc_no]);
|
|
enable_wakeup_src(CPUS_USBMOUSE_SRC, 0);
|
|
|
|
val = ohci_readl(ohci, &ohci->regs->control);
|
|
val |= OHCI_CTRL_RWE;
|
|
ohci_writel(ohci, val, &ohci->regs->control);
|
|
|
|
val = ohci_readl(ohci, &ohci->regs->intrenable);
|
|
val |= OHCI_INTR_RD;
|
|
val |= OHCI_INTR_MIE;
|
|
ohci_writel(ohci, val, &ohci->regs->intrenable);
|
|
}else{
|
|
DMSG_INFO("[%s]: sunxi_ohci_hcd_suspend\n", sunxi_ohci->hci_name);
|
|
|
|
/* Root hub was already suspended. Disable irq emission and
|
|
* mark HW unaccessible, bail out if RH has been resumed. Use
|
|
* the spinlock to properly synchronize with possible pending
|
|
* RH suspend or resume activity.
|
|
*
|
|
* This is still racy as hcd->state is manipulated outside of
|
|
* any locks =P But that will be a different fix.
|
|
*/
|
|
ohci_suspend(hcd, device_may_wakeup(dev));
|
|
|
|
sunxi_stop_ohci(sunxi_ohci);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sunxi_ohci_hcd_resume(struct device *dev)
|
|
{
|
|
struct sunxi_hci_hcd *sunxi_ohci = NULL;
|
|
struct usb_hcd *hcd = NULL;
|
|
|
|
if(dev == NULL){
|
|
DMSG_PANIC("ERR: Argment is invalid\n");
|
|
return 0;
|
|
}
|
|
|
|
hcd = dev_get_drvdata(dev);
|
|
if(hcd == NULL){
|
|
DMSG_PANIC("ERR: hcd is null\n");
|
|
return 0;
|
|
}
|
|
|
|
sunxi_ohci = dev->platform_data;
|
|
if(sunxi_ohci == NULL){
|
|
DMSG_PANIC("ERR: sunxi_ohci is null\n");
|
|
return 0;
|
|
}
|
|
|
|
if(sunxi_ohci->probe == 0){
|
|
DMSG_PANIC("[%s]: is disable, can not resume\n", sunxi_ohci->hci_name);
|
|
return 0;
|
|
}
|
|
|
|
if(sunxi_ohci->wakeup_suspend){
|
|
DMSG_INFO("[%s]: controller not suspend, need not resume\n", sunxi_ohci->hci_name);
|
|
|
|
scene_unlock(&ohci_standby_lock[sunxi_ohci->usbc_no]);
|
|
disable_wakeup_src(CPUS_USBMOUSE_SRC, 0);
|
|
|
|
}else{
|
|
DMSG_INFO("[%s]: sunxi_ohci_hcd_resume\n", sunxi_ohci->hci_name);
|
|
|
|
#ifdef SUNXI_USB_FPGA
|
|
fpga_config_use_hci(sunxi_ohci);
|
|
#endif
|
|
sunxi_start_ohci(sunxi_ohci);
|
|
|
|
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
|
|
ohci_resume(hcd, false);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dev_pm_ops sunxi_ohci_pmops = {
|
|
.suspend = sunxi_ohci_hcd_suspend,
|
|
.resume = sunxi_ohci_hcd_resume,
|
|
};
|
|
|
|
#define SUNXI_OHCI_PMOPS &sunxi_ohci_pmops
|
|
|
|
#else
|
|
|
|
#define SUNXI_OHCI_PMOPS NULL
|
|
|
|
#endif
|
|
|
|
static const struct of_device_id sunxi_ohci_match[] = {
|
|
{.compatible = SUNXI_OHCI0_OF_MATCH, },
|
|
{.compatible = SUNXI_OHCI1_OF_MATCH, },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, sunxi_ohci_match);
|
|
|
|
|
|
static struct platform_driver sunxi_ohci_hcd_driver = {
|
|
.probe = sunxi_ohci_hcd_probe,
|
|
.remove = sunxi_ohci_hcd_remove,
|
|
.shutdown = sunxi_ohci_hcd_shutdown,
|
|
.driver = {
|
|
.name = ohci_name,
|
|
.owner = THIS_MODULE,
|
|
.pm = SUNXI_OHCI_PMOPS,
|
|
.of_match_table = sunxi_ohci_match,
|
|
},
|
|
};
|
|
|
|
int sunxi_usb_disable_ohci(__u32 usbc_no)
|
|
{
|
|
struct sunxi_hci_hcd *sunxi_ohci = NULL;
|
|
|
|
sunxi_ohci = g_sunxi_ohci[usbc_no];
|
|
if(sunxi_ohci == NULL){
|
|
DMSG_PANIC("ERR: sunxi_ohci is null\n");
|
|
return -1;
|
|
}
|
|
|
|
if(sunxi_ohci->probe == 0){
|
|
DMSG_PANIC("ERR: sunxi_ohci is disable, can not disable again\n");
|
|
return -1;
|
|
}
|
|
|
|
sunxi_ohci->probe = 0;
|
|
|
|
DMSG_INFO("[%s]: sunxi_usb_disable_ohci\n", sunxi_ohci->hci_name);
|
|
|
|
sunxi_rmmod_ohci(sunxi_ohci->pdev);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(sunxi_usb_disable_ohci);
|
|
|
|
int sunxi_usb_enable_ohci(__u32 usbc_no)
|
|
{
|
|
struct sunxi_hci_hcd *sunxi_ohci = NULL;
|
|
|
|
sunxi_ohci = g_sunxi_ohci[usbc_no];
|
|
if(sunxi_ohci == NULL){
|
|
DMSG_PANIC("ERR: sunxi_ohci is null\n");
|
|
return -1;
|
|
}
|
|
|
|
if(sunxi_ohci->probe == 1){
|
|
DMSG_PANIC("ERR: sunxi_ohci is already enable, can not enable again\n");
|
|
return -1;
|
|
}
|
|
|
|
sunxi_ohci->probe = 1;
|
|
|
|
DMSG_INFO("[%s]: sunxi_usb_enable_ohci\n", sunxi_ohci->hci_name);
|
|
|
|
sunxi_insmod_ohci(sunxi_ohci->pdev);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(sunxi_usb_enable_ohci);
|
|
|