Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
kernel-fxtec-pro1x/drivers/usb/host/ohci-pxa27x.c
Tim Schmielau 4e57b68178 [PATCH] fix missing includes 
I recently picked up my older work to remove unnecessary #includes of
sched.h, starting from a patch by Dave Jones to not include sched.h
from module.h. This reduces the number of indirect includes of sched.h
by ~300. Another ~400 pointless direct includes can be removed after
this disentangling (patch to follow later).
However, quite a few indirect includes need to be fixed up for this.

In order to feed the patches through -mm with as little disturbance as
possible, I've split out the fixes I accumulated up to now (complete for
i386 and x86_64, more archs to follow later) and post them before the real
patch.  This way this large part of the patch is kept simple with only
adding #includes, and all hunks are independent of each other.  So if any
hunk rejects or gets in the way of other patches, just drop it.  My scripts
will pick it up again in the next round.

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30 17:37:32 -08:00

357 lines
8.4 KiB
C
Raw Blame History

/*
* OHCI HCD (Host Controller Driver) for USB.
*
* (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
* (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
* (C) Copyright 2002 Hewlett-Packard Company
*
* Bus Glue for pxa27x
*
* Written by Christopher Hoover <ch@hpl.hp.com>
* Based on fragments of previous driver by Russell King et al.
*
* Modified for LH7A404 from ohci-sa1111.c
* by Durgesh Pattamatta <pattamattad@sharpsec.com>
*
* Modified for pxa27x from ohci-lh7a404.c
* by Nick Bane <nick@cecomputing.co.uk> 26-8-2004
*
* This file is licenced under the GPL.
*/
#include <linux/device.h>
#include <linux/signal.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/arch/pxa-regs.h>
#define PMM_NPS_MODE 1
#define PMM_GLOBAL_MODE 2
#define PMM_PERPORT_MODE 3
#define PXA_UHC_MAX_PORTNUM 3
#define UHCRHPS(x) __REG2( 0x4C000050, (x)<<2 )
static int pxa27x_ohci_pmm_state;
/*
PMM_NPS_MODE -- PMM Non-power switching mode
Ports are powered continuously.
PMM_GLOBAL_MODE -- PMM global switching mode
All ports are powered at the same time.
PMM_PERPORT_MODE -- PMM per port switching mode
Ports are powered individually.
*/
static int pxa27x_ohci_select_pmm( int mode )
{
pxa27x_ohci_pmm_state = mode;
switch ( mode ) {
case PMM_NPS_MODE:
UHCRHDA |= RH_A_NPS;
break;
case PMM_GLOBAL_MODE:
UHCRHDA &= ~(RH_A_NPS & RH_A_PSM);
break;
case PMM_PERPORT_MODE:
UHCRHDA &= ~(RH_A_NPS);
UHCRHDA |= RH_A_PSM;
/* Set port power control mask bits, only 3 ports. */
UHCRHDB |= (0x7<<17);
break;
default:
printk( KERN_ERR
"Invalid mode %d, set to non-power switch mode.\n",
mode );
pxa27x_ohci_pmm_state = PMM_NPS_MODE;
UHCRHDA |= RH_A_NPS;
}
return 0;
}
extern int usb_disabled(void);
/*-------------------------------------------------------------------------*/
static void pxa27x_start_hc(struct platform_device *dev)
{
pxa_set_cken(CKEN10_USBHOST, 1);
UHCHR |= UHCHR_FHR;
udelay(11);
UHCHR &= ~UHCHR_FHR;
UHCHR |= UHCHR_FSBIR;
while (UHCHR & UHCHR_FSBIR)
cpu_relax();
/* This could be properly abstracted away through the
device data the day more machines are supported and
their differences can be figured out correctly. */
if (machine_is_mainstone()) {
/* setup Port1 GPIO pin. */
pxa_gpio_mode( 88 | GPIO_ALT_FN_1_IN); /* USBHPWR1 */
pxa_gpio_mode( 89 | GPIO_ALT_FN_2_OUT); /* USBHPEN1 */
/* Set the Power Control Polarity Low and Power Sense
Polarity Low to active low. Supply power to USB ports. */
UHCHR = (UHCHR | UHCHR_PCPL | UHCHR_PSPL) &
~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
pxa27x_ohci_pmm_state = PMM_PERPORT_MODE;
}
UHCHR &= ~UHCHR_SSE;
UHCHIE = (UHCHIE_UPRIE | UHCHIE_RWIE);
/* Clear any OTG Pin Hold */
if (PSSR & PSSR_OTGPH)
PSSR |= PSSR_OTGPH;
}
static void pxa27x_stop_hc(struct platform_device *dev)
{
UHCHR |= UHCHR_FHR;
udelay(11);
UHCHR &= ~UHCHR_FHR;
UHCCOMS |= 1;
udelay(10);
pxa_set_cken(CKEN10_USBHOST, 0);
}
/*-------------------------------------------------------------------------*/
/* configure so an HC device and id are always provided */
/* always called with process context; sleeping is OK */
/**
* usb_hcd_pxa27x_probe - initialize pxa27x-based HCDs
* Context: !in_interrupt()
*
* Allocates basic resources for this USB host controller, and
* then invokes the start() method for the HCD associated with it
* through the hotplug entry's driver_data.
*
*/
int usb_hcd_pxa27x_probe (const struct hc_driver *driver,
struct platform_device *dev)
{
int retval;
struct usb_hcd *hcd;
if (dev->resource[1].flags != IORESOURCE_IRQ) {
pr_debug ("resource[1] is not IORESOURCE_IRQ");
return -ENOMEM;
}
hcd = usb_create_hcd (driver, &dev->dev, "pxa27x");
if (!hcd)
return -ENOMEM;
hcd->rsrc_start = dev->resource[0].start;
hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
pr_debug("request_mem_region failed");
retval = -EBUSY;
goto err1;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
pr_debug("ioremap failed");
retval = -ENOMEM;
goto err2;
}
pxa27x_start_hc(dev);
/* Select Power Management Mode */
pxa27x_ohci_select_pmm(pxa27x_ohci_pmm_state);
ohci_hcd_init(hcd_to_ohci(hcd));
retval = usb_add_hcd(hcd, dev->resource[1].start, SA_INTERRUPT);
if (retval == 0)
return retval;
pxa27x_stop_hc(dev);
iounmap(hcd->regs);
err2:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err1:
usb_put_hcd(hcd);
return retval;
}
/* may be called without controller electrically present */
/* may be called with controller, bus, and devices active */
/**
* usb_hcd_pxa27x_remove - shutdown processing for pxa27x-based HCDs
* @dev: USB Host Controller being removed
* Context: !in_interrupt()
*
* Reverses the effect of usb_hcd_pxa27x_probe(), first invoking
* the HCD's stop() method. It is always called from a thread
* context, normally "rmmod", "apmd", or something similar.
*
*/
void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *dev)
{
usb_remove_hcd(hcd);
pxa27x_stop_hc(dev);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
}
/*-------------------------------------------------------------------------*/
static int __devinit
ohci_pxa27x_start (struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
int ret;
ohci_dbg (ohci, "ohci_pxa27x_start, ohci:%p", ohci);
/* The value of NDP in roothub_a is incorrect on this hardware */
ohci->num_ports = 3;
if ((ret = ohci_init(ohci)) < 0)
return ret;
if ((ret = ohci_run (ohci)) < 0) {
err ("can't start %s", hcd->self.bus_name);
ohci_stop (hcd);
return ret;
}
return 0;
}
/*-------------------------------------------------------------------------*/
static const struct hc_driver ohci_pxa27x_hc_driver = {
.description = hcd_name,
.product_desc = "PXA27x OHCI",
.hcd_priv_size = sizeof(struct ohci_hcd),
/*
* generic hardware linkage
*/
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
/*
* basic lifecycle operations
*/
.start = ohci_pxa27x_start,
.stop = ohci_stop,
/*
* 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 ohci_hcd_pxa27x_drv_probe(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
int ret;
pr_debug ("In ohci_hcd_pxa27x_drv_probe");
if (usb_disabled())
return -ENODEV;
ret = usb_hcd_pxa27x_probe(&ohci_pxa27x_hc_driver, pdev);
return ret;
}
static int ohci_hcd_pxa27x_drv_remove(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct usb_hcd *hcd = dev_get_drvdata(dev);
usb_hcd_pxa27x_remove(hcd, pdev);
return 0;
}
static int ohci_hcd_pxa27x_drv_suspend(struct device *dev, pm_message_t state)
{
// struct platform_device *pdev = to_platform_device(dev);
// struct usb_hcd *hcd = dev_get_drvdata(dev);
printk("%s: not implemented yet\n", __FUNCTION__);
return 0;
}
static int ohci_hcd_pxa27x_drv_resume(struct device *dev)
{
// struct platform_device *pdev = to_platform_device(dev);
// struct usb_hcd *hcd = dev_get_drvdata(dev);
printk("%s: not implemented yet\n", __FUNCTION__);
return 0;
}
static struct device_driver ohci_hcd_pxa27x_driver = {
.name = "pxa27x-ohci",
.bus = &platform_bus_type,
.probe = ohci_hcd_pxa27x_drv_probe,
.remove = ohci_hcd_pxa27x_drv_remove,
.suspend = ohci_hcd_pxa27x_drv_suspend,
.resume = ohci_hcd_pxa27x_drv_resume,
};
static int __init ohci_hcd_pxa27x_init (void)
{
pr_debug (DRIVER_INFO " (pxa27x)");
pr_debug ("block sizes: ed %d td %d\n",
sizeof (struct ed), sizeof (struct td));
return driver_register(&ohci_hcd_pxa27x_driver);
}
static void __exit ohci_hcd_pxa27x_cleanup (void)
{
driver_unregister(&ohci_hcd_pxa27x_driver);
}
module_init (ohci_hcd_pxa27x_init);
module_exit (ohci_hcd_pxa27x_cleanup);
Reference in a new issue View git blame Copy permalink