mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-24 14:05:20 +02:00
0c3e51f31c
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31511 3c298f89-4303-0410-b956-a3cf2f4a3e73
229 lines
5.0 KiB
C
229 lines
5.0 KiB
C
/*
|
|
* ADM5120 HCD (Host Controller Driver) for USB
|
|
*
|
|
* Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
|
|
*
|
|
* This file was derived from: drivers/usb/host/ohci-au1xxx.c
|
|
* (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
|
|
* (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
|
|
* (C) Copyright 2002 Hewlett-Packard Company
|
|
*
|
|
* Written by Christopher Hoover <ch@hpl.hp.com>
|
|
* Based on fragments of previous driver by Russell King et al.
|
|
*
|
|
* Modified for LH7A404 from ahcd-sa1111.c
|
|
* by Durgesh Pattamatta <pattamattad@sharpsec.com>
|
|
* Modified for AMD Alchemy Au1xxx
|
|
* by Matt Porter <mporter@kernel.crashing.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published
|
|
* by the Free Software Foundation.
|
|
*
|
|
*/
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/signal.h>
|
|
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/mach-adm5120/adm5120_defs.h>
|
|
|
|
#ifdef DEBUG
|
|
#define HCD_DBG(f, a...) printk(KERN_DEBUG "%s: " f, hcd_name, ## a)
|
|
#else
|
|
#define HCD_DBG(f, a...) do {} while (0)
|
|
#endif
|
|
#define HCD_ERR(f, a...) printk(KERN_ERR "%s: " f, hcd_name, ## a)
|
|
#define HCD_INFO(f, a...) printk(KERN_INFO "%s: " f, hcd_name, ## a)
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static int admhc_adm5120_probe(const struct hc_driver *driver,
|
|
struct platform_device *dev)
|
|
{
|
|
int retval;
|
|
struct usb_hcd *hcd;
|
|
int irq;
|
|
struct resource *regs;
|
|
|
|
/* sanity checks */
|
|
regs = platform_get_resource(dev, IORESOURCE_MEM, 0);
|
|
if (!regs) {
|
|
HCD_DBG("no IOMEM resource found\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
irq = platform_get_irq(dev, 0);
|
|
if (irq < 0) {
|
|
HCD_DBG("no IRQ resource found\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
hcd = usb_create_hcd(driver, &dev->dev, "ADM5120");
|
|
if (!hcd)
|
|
return -ENOMEM;
|
|
|
|
hcd->rsrc_start = regs->start;
|
|
hcd->rsrc_len = regs->end - regs->start + 1;
|
|
|
|
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
|
|
HCD_DBG("request_mem_region failed\n");
|
|
retval = -EBUSY;
|
|
goto err_dev;
|
|
}
|
|
|
|
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
|
|
if (!hcd->regs) {
|
|
HCD_DBG("ioremap failed\n");
|
|
retval = -ENOMEM;
|
|
goto err_mem;
|
|
}
|
|
|
|
admhc_hcd_init(hcd_to_admhcd(hcd));
|
|
|
|
retval = usb_add_hcd(hcd, irq, 0);
|
|
if (retval)
|
|
goto err_io;
|
|
|
|
return 0;
|
|
|
|
err_io:
|
|
iounmap(hcd->regs);
|
|
err_mem:
|
|
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
|
|
err_dev:
|
|
usb_put_hcd(hcd);
|
|
return retval;
|
|
}
|
|
|
|
|
|
/* may be called without controller electrically present */
|
|
/* may be called with controller, bus, and devices active */
|
|
|
|
static void admhc_adm5120_remove(struct usb_hcd *hcd,
|
|
struct platform_device *dev)
|
|
{
|
|
usb_remove_hcd(hcd);
|
|
iounmap(hcd->regs);
|
|
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
|
|
usb_put_hcd(hcd);
|
|
}
|
|
|
|
static int __devinit admhc_adm5120_start(struct usb_hcd *hcd)
|
|
{
|
|
struct admhcd *ahcd = hcd_to_admhcd(hcd);
|
|
int ret;
|
|
|
|
ret = admhc_init(ahcd);
|
|
if (ret < 0) {
|
|
HCD_ERR("unable to init %s\n", hcd->self.bus_name);
|
|
goto err;
|
|
}
|
|
|
|
ret = admhc_run(ahcd);
|
|
if (ret < 0) {
|
|
HCD_ERR("unable to run %s\n", hcd->self.bus_name);
|
|
goto err_stop;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_stop:
|
|
admhc_stop(hcd);
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
static const struct hc_driver adm5120_hc_driver = {
|
|
.description = hcd_name,
|
|
.product_desc = "ADM5120 built-in USB 1.1 Host Controller",
|
|
.hcd_priv_size = sizeof(struct admhcd),
|
|
|
|
/*
|
|
* generic hardware linkage
|
|
*/
|
|
.irq = admhc_irq,
|
|
.flags = HCD_USB11 | HCD_MEMORY,
|
|
|
|
/*
|
|
* basic lifecycle operations
|
|
*/
|
|
.start = admhc_adm5120_start,
|
|
.stop = admhc_stop,
|
|
.shutdown = admhc_shutdown,
|
|
|
|
/*
|
|
* managing i/o requests and associated device resources
|
|
*/
|
|
.urb_enqueue = admhc_urb_enqueue,
|
|
.urb_dequeue = admhc_urb_dequeue,
|
|
.endpoint_disable = admhc_endpoint_disable,
|
|
|
|
/*
|
|
* scheduling support
|
|
*/
|
|
.get_frame_number = admhc_get_frame_number,
|
|
|
|
/*
|
|
* root hub support
|
|
*/
|
|
.hub_status_data = admhc_hub_status_data,
|
|
.hub_control = admhc_hub_control,
|
|
#ifdef CONFIG_PM
|
|
.bus_suspend = admhc_bus_suspend,
|
|
.bus_resume = admhc_bus_resume,
|
|
#endif
|
|
.start_port_reset = admhc_start_port_reset,
|
|
};
|
|
|
|
static int usb_hcd_adm5120_probe(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
|
|
ret = admhc_adm5120_probe(&adm5120_hc_driver, pdev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int usb_hcd_adm5120_remove(struct platform_device *pdev)
|
|
{
|
|
struct usb_hcd *hcd = platform_get_drvdata(pdev);
|
|
|
|
admhc_adm5120_remove(hcd, pdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
/* TODO */
|
|
static int usb_hcd_adm5120_suspend(struct platform_device *dev)
|
|
{
|
|
struct usb_hcd *hcd = platform_get_drvdata(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int usb_hcd_adm5120_resume(struct platform_device *dev)
|
|
{
|
|
struct usb_hcd *hcd = platform_get_drvdata(dev);
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
#define usb_hcd_adm5120_suspend NULL
|
|
#define usb_hcd_adm5120_resume NULL
|
|
#endif /* CONFIG_PM */
|
|
|
|
static struct platform_driver usb_hcd_adm5120_driver = {
|
|
.probe = usb_hcd_adm5120_probe,
|
|
.remove = usb_hcd_adm5120_remove,
|
|
.shutdown = usb_hcd_platform_shutdown,
|
|
.suspend = usb_hcd_adm5120_suspend,
|
|
.resume = usb_hcd_adm5120_resume,
|
|
.driver = {
|
|
.name = "adm5120-hcd",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|