[deliverable/linux.git] / drivers / usb / host / ohci-pxa27x.c

/*
 * 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 <linux/platform_device.h>
#include <linux/clk.h>

#include <mach/hardware.h>
#include <mach/pxa-regs.h>
#include <mach/pxa2xx-regs.h> /* FIXME: for PSSR */
#include <mach/ohci.h>

#define PXA_UHC_MAX_PORTNUM    3

#define UHCRHPS(x)              __REG2( 0x4C000050, (x)<<2 )

static struct clk *usb_clk;

/*
  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 )
{
	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 );

		UHCRHDA |= RH_A_NPS;
	}

	return 0;
}

extern int usb_disabled(void);

/*-------------------------------------------------------------------------*/

static inline void pxa27x_setup_hc(struct pxaohci_platform_data *inf)
{
	uint32_t uhchr = UHCHR;
	uint32_t uhcrhda = UHCRHDA;

	if (inf->flags & ENABLE_PORT1)
		uhchr &= ~UHCHR_SSEP1;

	if (inf->flags & ENABLE_PORT2)
		uhchr &= ~UHCHR_SSEP2;

	if (inf->flags & ENABLE_PORT3)
		uhchr &= ~UHCHR_SSEP3;

	if (inf->flags & POWER_CONTROL_LOW)
		uhchr |= UHCHR_PCPL;

	if (inf->flags & POWER_SENSE_LOW)
		uhchr |= UHCHR_PSPL;

	if (inf->flags & NO_OC_PROTECTION)
		uhcrhda |= UHCRHDA_NOCP;

	if (inf->flags & OC_MODE_PERPORT)
		uhcrhda |= UHCRHDA_OCPM;

	if (inf->power_on_delay) {
		uhcrhda &= ~UHCRHDA_POTPGT(0xff);
		uhcrhda |= UHCRHDA_POTPGT(inf->power_on_delay / 2);
	}

	UHCHR = uhchr;
	UHCRHDA = uhcrhda;
}

static int pxa27x_start_hc(struct device *dev)
{
	int retval = 0;
	struct pxaohci_platform_data *inf;

	inf = dev->platform_data;

	clk_enable(usb_clk);

	UHCHR |= UHCHR_FHR;
	udelay(11);
	UHCHR &= ~UHCHR_FHR;

	UHCHR |= UHCHR_FSBIR;
	while (UHCHR & UHCHR_FSBIR)
		cpu_relax();

	pxa27x_setup_hc(inf);

	if (inf->init)
		retval = inf->init(dev);

	if (retval < 0)
		return retval;

	UHCHR &= ~UHCHR_SSE;

	UHCHIE = (UHCHIE_UPRIE | UHCHIE_RWIE);

	/* Clear any OTG Pin Hold */
	if (cpu_is_pxa27x() && (PSSR & PSSR_OTGPH))
		PSSR |= PSSR_OTGPH;

	return 0;
}

static void pxa27x_stop_hc(struct device *dev)
{
	struct pxaohci_platform_data *inf;

	inf = dev->platform_data;

	if (inf->exit)
		inf->exit(dev);

	UHCHR |= UHCHR_FHR;
	udelay(11);
	UHCHR &= ~UHCHR_FHR;

	UHCCOMS |= 1;
	udelay(10);

	clk_disable(usb_clk);
}


/*-------------------------------------------------------------------------*/

/* 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 *pdev)
{
	int retval;
	struct usb_hcd *hcd;
	struct pxaohci_platform_data *inf;

	inf = pdev->dev.platform_data;

	if (!inf)
		return -ENODEV;

	if (pdev->resource[1].flags != IORESOURCE_IRQ) {
		pr_debug ("resource[1] is not IORESOURCE_IRQ");
		return -ENOMEM;
	}

	usb_clk = clk_get(&pdev->dev, "USBCLK");
	if (IS_ERR(usb_clk))
		return PTR_ERR(usb_clk);

	hcd = usb_create_hcd (driver, &pdev->dev, "pxa27x");
	if (!hcd)
		return -ENOMEM;
	hcd->rsrc_start = pdev->resource[0].start;
	hcd->rsrc_len = pdev->resource[0].end - pdev->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;
	}

	if ((retval = pxa27x_start_hc(&pdev->dev)) < 0) {
		pr_debug("pxa27x_start_hc failed");
		goto err3;
	}

	/* Select Power Management Mode */
	pxa27x_ohci_select_pmm(inf->port_mode);

	if (inf->power_budget)
		hcd->power_budget = inf->power_budget;

	ohci_hcd_init(hcd_to_ohci(hcd));

	retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_DISABLED);
	if (retval == 0)
		return retval;

	pxa27x_stop_hc(&pdev->dev);
 err3:
	iounmap(hcd->regs);
 err2:
	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
 err1:
	usb_put_hcd(hcd);
	clk_put(usb_clk);
	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 *pdev)
{
	usb_remove_hcd(hcd);
	pxa27x_stop_hc(&pdev->dev);
	iounmap(hcd->regs);
	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	usb_put_hcd(hcd);
	clk_put(usb_clk);
}

/*-------------------------------------------------------------------------*/

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,
	.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 ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev)
{
	pr_debug ("In ohci_hcd_pxa27x_drv_probe");

	if (usb_disabled())
		return -ENODEV;

	return usb_hcd_pxa27x_probe(&ohci_pxa27x_hc_driver, pdev);
}

static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev)
{
	struct usb_hcd *hcd = platform_get_drvdata(pdev);

	usb_hcd_pxa27x_remove(hcd, pdev);
	platform_set_drvdata(pdev, NULL);
	return 0;
}

#ifdef	CONFIG_PM
static int ohci_hcd_pxa27x_drv_suspend(struct platform_device *pdev, pm_message_t state)
{
	struct usb_hcd *hcd = platform_get_drvdata(pdev);
	struct ohci_hcd *ohci = hcd_to_ohci(hcd);

	if (time_before(jiffies, ohci->next_statechange))
		msleep(5);
	ohci->next_statechange = jiffies;

	pxa27x_stop_hc(&pdev->dev);
	hcd->state = HC_STATE_SUSPENDED;

	return 0;
}

static int ohci_hcd_pxa27x_drv_resume(struct platform_device *pdev)
{
	struct usb_hcd *hcd = platform_get_drvdata(pdev);
	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
	int status;

	if (time_before(jiffies, ohci->next_statechange))
		msleep(5);
	ohci->next_statechange = jiffies;

	if ((status = pxa27x_start_hc(&pdev->dev)) < 0)
		return status;

	ohci_finish_controller_resume(hcd);
	return 0;
}
#endif

/* work with hotplug and coldplug */
MODULE_ALIAS("platform:pxa27x-ohci");

static struct platform_driver ohci_hcd_pxa27x_driver = {
	.probe		= ohci_hcd_pxa27x_drv_probe,
	.remove		= ohci_hcd_pxa27x_drv_remove,
	.shutdown	= usb_hcd_platform_shutdown,
#ifdef CONFIG_PM
	.suspend	= ohci_hcd_pxa27x_drv_suspend,
	.resume		= ohci_hcd_pxa27x_drv_resume,
#endif
	.driver		= {
		.name	= "pxa27x-ohci",
		.owner	= THIS_MODULE,
	},
};
Commit	Line	Data
1da177e4 LT	1	/*
	2	* OHCI HCD (Host Controller Driver) for USB.
	3	*
	4	* (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
	5	* (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
	6	* (C) Copyright 2002 Hewlett-Packard Company
	7	*
	8	* Bus Glue for pxa27x
	9	*
	10	* Written by Christopher Hoover <ch@hpl.hp.com>
	11	* Based on fragments of previous driver by Russell King et al.
	12	*
	13	* Modified for LH7A404 from ohci-sa1111.c
	14	* by Durgesh Pattamatta <pattamattad@sharpsec.com>
	15	*
	16	* Modified for pxa27x from ohci-lh7a404.c
	17	* by Nick Bane <nick@cecomputing.co.uk> 26-8-2004
	18	*
	19	* This file is licenced under the GPL.
	20	*/
	21
	22	#include <linux/device.h>
4e57b681	23	#include <linux/signal.h>
d052d1be	24	#include <linux/platform_device.h>
a8bcf410	25	#include <linux/clk.h>
4fd5f826	26
a09e64fb RK	27	#include <mach/hardware.h>
	28	#include <mach/pxa-regs.h>
	29	#include <mach/pxa2xx-regs.h> /* FIXME: for PSSR */
	30	#include <mach/ohci.h>
1da177e4 LT	31
	32	#define PXA_UHC_MAX_PORTNUM 3
	33
	34	#define UHCRHPS(x) __REG2( 0x4C000050, (x)<<2 )
	35
a8bcf410	36	static struct clk *usb_clk;
a8bcf410	37
1da177e4 LT	38	/*
	39	PMM_NPS_MODE -- PMM Non-power switching mode
	40	Ports are powered continuously.
	41
	42	PMM_GLOBAL_MODE -- PMM global switching mode
	43	All ports are powered at the same time.
	44
	45	PMM_PERPORT_MODE -- PMM per port switching mode
	46	Ports are powered individually.
	47	*/
	48	static int pxa27x_ohci_select_pmm( int mode )
	49	{
1da177e4 LT	50	switch ( mode ) {
	51	case PMM_NPS_MODE:
	52	UHCRHDA \|= RH_A_NPS;
dd9048af	53	break;
1da177e4 LT	54	case PMM_GLOBAL_MODE:
	55	UHCRHDA &= ~(RH_A_NPS & RH_A_PSM);
	56	break;
	57	case PMM_PERPORT_MODE:
	58	UHCRHDA &= ~(RH_A_NPS);
	59	UHCRHDA \|= RH_A_PSM;
	60
	61	/* Set port power control mask bits, only 3 ports. */
	62	UHCRHDB \|= (0x7<<17);
	63	break;
	64	default:
	65	printk( KERN_ERR
dd9048af	66	"Invalid mode %d, set to non-power switch mode.\n",
1da177e4 LT	67	mode );
1da177e4 LT	68
1da177e4 LT	69	UHCRHDA \|= RH_A_NPS;
	70	}
	71
	72	return 0;
	73	}
	74
1da177e4 LT	75	extern int usb_disabled(void);
	76
	77	/-------------------------------------------------------------------------/
	78
097b5334 EM	79	static inline void pxa27x_setup_hc(struct pxaohci_platform_data *inf)
	80	{
	81	uint32_t uhchr = UHCHR;
	82	uint32_t uhcrhda = UHCRHDA;
	83
	84	if (inf->flags & ENABLE_PORT1)
	85	uhchr &= ~UHCHR_SSEP1;
	86
	87	if (inf->flags & ENABLE_PORT2)
	88	uhchr &= ~UHCHR_SSEP2;
	89
	90	if (inf->flags & ENABLE_PORT3)
	91	uhchr &= ~UHCHR_SSEP3;
	92
	93	if (inf->flags & POWER_CONTROL_LOW)
	94	uhchr \|= UHCHR_PCPL;
	95
	96	if (inf->flags & POWER_SENSE_LOW)
	97	uhchr \|= UHCHR_PSPL;
	98
	99	if (inf->flags & NO_OC_PROTECTION)
	100	uhcrhda \|= UHCRHDA_NOCP;
	101
	102	if (inf->flags & OC_MODE_PERPORT)
	103	uhcrhda \|= UHCRHDA_OCPM;
	104
	105	if (inf->power_on_delay) {
	106	uhcrhda &= ~UHCRHDA_POTPGT(0xff);
	107	uhcrhda \|= UHCRHDA_POTPGT(inf->power_on_delay / 2);
	108	}
	109
	110	UHCHR = uhchr;
	111	UHCRHDA = uhcrhda;
	112	}
	113
81f280e2	114	static int pxa27x_start_hc(struct device *dev)
1da177e4	115	{
81f280e2 RP	116	int retval = 0;
	117	struct pxaohci_platform_data *inf;
	118
	119	inf = dev->platform_data;
	120
a8bcf410	121	clk_enable(usb_clk);
1da177e4 LT	122
	123	UHCHR \|= UHCHR_FHR;
	124	udelay(11);
	125	UHCHR &= ~UHCHR_FHR;
	126
	127	UHCHR \|= UHCHR_FSBIR;
	128	while (UHCHR & UHCHR_FSBIR)
	129	cpu_relax();
	130
097b5334 EM	131	pxa27x_setup_hc(inf);
097b5334 EM	132
81f280e2 RP	133	if (inf->init)
81f280e2 RP	134	retval = inf->init(dev);
155faf5e	135
81f280e2 RP	136	if (retval < 0)
81f280e2 RP	137	return retval;
1da177e4 LT	138
	139	UHCHR &= ~UHCHR_SSE;
	140
	141	UHCHIE = (UHCHIE_UPRIE \| UHCHIE_RWIE);
155faf5e DB	142
155faf5e DB	143	/* Clear any OTG Pin Hold */
d438ae57	144	if (cpu_is_pxa27x() && (PSSR & PSSR_OTGPH))
155faf5e	145	PSSR \|= PSSR_OTGPH;
81f280e2 RP	146
81f280e2 RP	147	return 0;
1da177e4 LT	148	}
1da177e4 LT	149
81f280e2	150	static void pxa27x_stop_hc(struct device *dev)
1da177e4	151	{
81f280e2 RP	152	struct pxaohci_platform_data *inf;
	153
	154	inf = dev->platform_data;
	155
	156	if (inf->exit)
	157	inf->exit(dev);
	158
1da177e4 LT	159	UHCHR \|= UHCHR_FHR;
	160	udelay(11);
	161	UHCHR &= ~UHCHR_FHR;
	162
	163	UHCCOMS \|= 1;
	164	udelay(10);
	165
a8bcf410	166	clk_disable(usb_clk);
1da177e4 LT	167	}
	168
	169
	170	/-------------------------------------------------------------------------/
	171
	172	/* configure so an HC device and id are always provided */
	173	/* always called with process context; sleeping is OK */
	174
	175
	176	/**
	177	* usb_hcd_pxa27x_probe - initialize pxa27x-based HCDs
	178	* Context: !in_interrupt()
	179	*
	180	* Allocates basic resources for this USB host controller, and
	181	* then invokes the start() method for the HCD associated with it
	182	* through the hotplug entry's driver_data.
	183	*
	184	*/
81f280e2	185	int usb_hcd_pxa27x_probe (const struct hc_driver driver, struct platform_device pdev)
1da177e4 LT	186	{
	187	int retval;
	188	struct usb_hcd *hcd;
81f280e2 RP	189	struct pxaohci_platform_data *inf;
	190
	191	inf = pdev->dev.platform_data;
1da177e4	192
81f280e2 RP	193	if (!inf)
	194	return -ENODEV;
	195
	196	if (pdev->resource[1].flags != IORESOURCE_IRQ) {
1da177e4 LT	197	pr_debug ("resource[1] is not IORESOURCE_IRQ");
	198	return -ENOMEM;
	199	}
	200
a8bcf410	201	usb_clk = clk_get(&pdev->dev, "USBCLK");
	202	if (IS_ERR(usb_clk))
	203	return PTR_ERR(usb_clk);
	204
81f280e2	205	hcd = usb_create_hcd (driver, &pdev->dev, "pxa27x");
1da177e4 LT	206	if (!hcd)
1da177e4 LT	207	return -ENOMEM;
81f280e2 RP	208	hcd->rsrc_start = pdev->resource[0].start;
81f280e2 RP	209	hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
1da177e4 LT	210
	211	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
	212	pr_debug("request_mem_region failed");
	213	retval = -EBUSY;
	214	goto err1;
	215	}
	216
	217	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
	218	if (!hcd->regs) {
	219	pr_debug("ioremap failed");
	220	retval = -ENOMEM;
	221	goto err2;
	222	}
	223
81f280e2 RP	224	if ((retval = pxa27x_start_hc(&pdev->dev)) < 0) {
	225	pr_debug("pxa27x_start_hc failed");
	226	goto err3;
	227	}
1da177e4 LT	228
1da177e4 LT	229	/* Select Power Management Mode */
81f280e2	230	pxa27x_ohci_select_pmm(inf->port_mode);
1da177e4	231
0c27c5d5 RP	232	if (inf->power_budget)
	233	hcd->power_budget = inf->power_budget;
	234
1da177e4 LT	235	ohci_hcd_init(hcd_to_ohci(hcd));
1da177e4 LT	236
d54b5caa	237	retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_DISABLED);
1da177e4 LT	238	if (retval == 0)
	239	return retval;
	240
81f280e2 RP	241	pxa27x_stop_hc(&pdev->dev);
81f280e2 RP	242	err3:
1da177e4 LT	243	iounmap(hcd->regs);
	244	err2:
	245	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	246	err1:
	247	usb_put_hcd(hcd);
a8bcf410	248	clk_put(usb_clk);
1da177e4 LT	249	return retval;
	250	}
	251
	252
	253	/* may be called without controller electrically present */
	254	/* may be called with controller, bus, and devices active */
	255
	256	/**
	257	* usb_hcd_pxa27x_remove - shutdown processing for pxa27x-based HCDs
	258	* @dev: USB Host Controller being removed
	259	* Context: !in_interrupt()
	260	*
	261	* Reverses the effect of usb_hcd_pxa27x_probe(), first invoking
	262	* the HCD's stop() method. It is always called from a thread
	263	* context, normally "rmmod", "apmd", or something similar.
	264	*
	265	*/
81f280e2	266	void usb_hcd_pxa27x_remove (struct usb_hcd hcd, struct platform_device pdev)
1da177e4 LT	267	{
1da177e4 LT	268	usb_remove_hcd(hcd);
81f280e2	269	pxa27x_stop_hc(&pdev->dev);
1da177e4 LT	270	iounmap(hcd->regs);
	271	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	272	usb_put_hcd(hcd);
a8bcf410	273	clk_put(usb_clk);
1da177e4 LT	274	}
	275
	276	/-------------------------------------------------------------------------/
	277
	278	static int __devinit
	279	ohci_pxa27x_start (struct usb_hcd *hcd)
	280	{
	281	struct ohci_hcd *ohci = hcd_to_ohci (hcd);
	282	int ret;
	283
	284	ohci_dbg (ohci, "ohci_pxa27x_start, ohci:%p", ohci);
	285
fdd13b36 DB	286	/* The value of NDP in roothub_a is incorrect on this hardware */
	287	ohci->num_ports = 3;
	288
1da177e4 LT	289	if ((ret = ohci_init(ohci)) < 0)
	290	return ret;
	291
	292	if ((ret = ohci_run (ohci)) < 0) {
	293	err ("can't start %s", hcd->self.bus_name);
	294	ohci_stop (hcd);
	295	return ret;
	296	}
	297
	298	return 0;
	299	}
	300
	301	/-------------------------------------------------------------------------/
	302
	303	static const struct hc_driver ohci_pxa27x_hc_driver = {
	304	.description = hcd_name,
	305	.product_desc = "PXA27x OHCI",
	306	.hcd_priv_size = sizeof(struct ohci_hcd),
	307
	308	/*
	309	* generic hardware linkage
	310	*/
	311	.irq = ohci_irq,
	312	.flags = HCD_USB11 \| HCD_MEMORY,
	313
	314	/*
	315	* basic lifecycle operations
	316	*/
	317	.start = ohci_pxa27x_start,
	318	.stop = ohci_stop,
dd9048af	319	.shutdown = ohci_shutdown,
1da177e4 LT	320
	321	/*
	322	* managing i/o requests and associated device resources
	323	*/
	324	.urb_enqueue = ohci_urb_enqueue,
	325	.urb_dequeue = ohci_urb_dequeue,
	326	.endpoint_disable = ohci_endpoint_disable,
	327
	328	/*
	329	* scheduling support
	330	*/
	331	.get_frame_number = ohci_get_frame,
	332
	333	/*
	334	* root hub support
	335	*/
	336	.hub_status_data = ohci_hub_status_data,
	337	.hub_control = ohci_hub_control,
8ad7fe16	338	#ifdef CONFIG_PM
0c0382e3 AS	339	.bus_suspend = ohci_bus_suspend,
0c0382e3 AS	340	.bus_resume = ohci_bus_resume,
1da177e4	341	#endif
9293677a	342	.start_port_reset = ohci_start_port_reset,
1da177e4 LT	343	};
	344
	345	/-------------------------------------------------------------------------/
	346
3ae5eaec	347	static int ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev)
1da177e4	348	{
1da177e4 LT	349	pr_debug ("In ohci_hcd_pxa27x_drv_probe");
	350
	351	if (usb_disabled())
	352	return -ENODEV;
	353
81f280e2	354	return usb_hcd_pxa27x_probe(&ohci_pxa27x_hc_driver, pdev);
1da177e4 LT	355	}
1da177e4 LT	356
3ae5eaec	357	static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev)
1da177e4	358	{
3ae5eaec	359	struct usb_hcd *hcd = platform_get_drvdata(pdev);
1da177e4 LT	360
1da177e4 LT	361	usb_hcd_pxa27x_remove(hcd, pdev);
a5e36d20	362	platform_set_drvdata(pdev, NULL);
1da177e4 LT	363	return 0;
	364	}
	365
2e1dcc16 RP	366	#ifdef CONFIG_PM
2e1dcc16 RP	367	static int ohci_hcd_pxa27x_drv_suspend(struct platform_device *pdev, pm_message_t state)
1da177e4	368	{
a5e36d20 RP	369	struct usb_hcd *hcd = platform_get_drvdata(pdev);
a5e36d20 RP	370	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
2e1dcc16 RP	371
	372	if (time_before(jiffies, ohci->next_statechange))
	373	msleep(5);
	374	ohci->next_statechange = jiffies;
	375
	376	pxa27x_stop_hc(&pdev->dev);
a5e36d20	377	hcd->state = HC_STATE_SUSPENDED;
1da177e4 LT	378
	379	return 0;
	380	}
	381
2e1dcc16	382	static int ohci_hcd_pxa27x_drv_resume(struct platform_device *pdev)
1da177e4	383	{
a5e36d20 RP	384	struct usb_hcd *hcd = platform_get_drvdata(pdev);
a5e36d20 RP	385	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
2e1dcc16 RP	386	int status;
	387
	388	if (time_before(jiffies, ohci->next_statechange))
	389	msleep(5);
	390	ohci->next_statechange = jiffies;
	391
	392	if ((status = pxa27x_start_hc(&pdev->dev)) < 0)
	393	return status;
	394
43bbb7e0	395	ohci_finish_controller_resume(hcd);
1da177e4 LT	396	return 0;
1da177e4 LT	397	}
2e1dcc16	398	#endif
1da177e4	399
f4fce61d KS	400	/* work with hotplug and coldplug */
f4fce61d KS	401	MODULE_ALIAS("platform:pxa27x-ohci");
1da177e4	402
3ae5eaec	403	static struct platform_driver ohci_hcd_pxa27x_driver = {
1da177e4 LT	404	.probe = ohci_hcd_pxa27x_drv_probe,
1da177e4 LT	405	.remove = ohci_hcd_pxa27x_drv_remove,
dd9048af	406	.shutdown = usb_hcd_platform_shutdown,
2e1dcc16	407	#ifdef CONFIG_PM
dd9048af	408	.suspend = ohci_hcd_pxa27x_drv_suspend,
3ae5eaec	409	.resume = ohci_hcd_pxa27x_drv_resume,
2e1dcc16	410	#endif
3ae5eaec RK	411	.driver = {
3ae5eaec RK	412	.name = "pxa27x-ohci",
f4fce61d	413	.owner = THIS_MODULE,
3ae5eaec	414	},
1da177e4 LT	415	};
1da177e4 LT	416