[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / usb / chipidea / ci13xxx_pci.c

/*
 * ci13xxx_pci.c - MIPS USB IP core family device controller
 *
 * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
 *
 * Author: David Lopo
 *
 * 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/module.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/usb/gadget.h>
#include <linux/usb/chipidea.h>

/* driver name */
#define UDC_DRIVER_NAME   "ci13xxx_pci"

/******************************************************************************
 * PCI block
 *****************************************************************************/
struct ci13xxx_platform_data pci_platdata = {
	.name		= UDC_DRIVER_NAME,
	.capoffset	= DEF_CAPOFFSET,
};

struct ci13xxx_platform_data langwell_pci_platdata = {
	.name		= UDC_DRIVER_NAME,
	.capoffset	= 0,
};

struct ci13xxx_platform_data penwell_pci_platdata = {
	.name		= UDC_DRIVER_NAME,
	.capoffset	= 0,
	.power_budget	= 200,
};

/**
 * ci13xxx_pci_probe: PCI probe
 * @pdev: USB device controller being probed
 * @id:   PCI hotplug ID connecting controller to UDC framework
 *
 * This function returns an error code
 * Allocates basic PCI resources for this USB device controller, and then
 * invokes the udc_probe() method to start the UDC associated with it
 */
static int ci13xxx_pci_probe(struct pci_dev *pdev,
				       const struct pci_device_id *id)
{
	struct ci13xxx_platform_data *platdata = (void *)id->driver_data;
	struct platform_device *plat_ci;
	struct resource res[3];
	int retval = 0, nres = 2;

	if (!platdata) {
		dev_err(&pdev->dev, "device doesn't provide driver data\n");
		return -ENODEV;
	}

	retval = pci_enable_device(pdev);
	if (retval)
		goto done;

	if (!pdev->irq) {
		dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!");
		retval = -ENODEV;
		goto disable_device;
	}

	pci_set_power_state(pdev, PCI_D0);
	pci_set_master(pdev);
	pci_try_set_mwi(pdev);

	memset(res, 0, sizeof(res));
	res[0].start	= pci_resource_start(pdev, 0);
	res[0].end	= pci_resource_end(pdev, 0);
	res[0].flags	= IORESOURCE_MEM;
	res[1].start	= pdev->irq;
	res[1].flags	= IORESOURCE_IRQ;

	plat_ci = ci13xxx_add_device(&pdev->dev, res, nres, platdata);
	if (IS_ERR(plat_ci)) {
		dev_err(&pdev->dev, "ci13xxx_add_device failed!\n");
		retval = PTR_ERR(plat_ci);
		goto disable_device;
	}

	pci_set_drvdata(pdev, plat_ci);

	return 0;

 disable_device:
	pci_disable_device(pdev);
 done:
	return retval;
}

/**
 * ci13xxx_pci_remove: PCI remove
 * @pdev: USB Device Controller being removed
 *
 * Reverses the effect of ci13xxx_pci_probe(),
 * first invoking the udc_remove() and then releases
 * all PCI resources allocated for this USB device controller
 */
static void ci13xxx_pci_remove(struct pci_dev *pdev)
{
	struct platform_device *plat_ci = pci_get_drvdata(pdev);

	ci13xxx_remove_device(plat_ci);
	pci_set_drvdata(pdev, NULL);
	pci_disable_device(pdev);
}

/**
 * PCI device table
 * PCI device structure
 *
 * Check "pci.h" for details
 */
static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = {
	{
		PCI_DEVICE(0x153F, 0x1004),
		.driver_data = (kernel_ulong_t)&pci_platdata,
	},
	{
		PCI_DEVICE(0x153F, 0x1006),
		.driver_data = (kernel_ulong_t)&pci_platdata,
	},
	{
		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811),
		.driver_data = (kernel_ulong_t)&langwell_pci_platdata,
	},
	{
		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
		.driver_data = (kernel_ulong_t)&penwell_pci_platdata,
	},
	{ 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ }
};
MODULE_DEVICE_TABLE(pci, ci13xxx_pci_id_table);

static struct pci_driver ci13xxx_pci_driver = {
	.name         =	UDC_DRIVER_NAME,
	.id_table     =	ci13xxx_pci_id_table,
	.probe        =	ci13xxx_pci_probe,
	.remove       =	ci13xxx_pci_remove,
};

module_pci_driver(ci13xxx_pci_driver);

MODULE_AUTHOR("MIPS - David Lopo <dlopo@chipidea.mips.com>");
MODULE_DESCRIPTION("MIPS CI13XXX USB Peripheral Controller");
MODULE_LICENSE("GPL");
MODULE_VERSION("June 2008");
Commit	Line	Data
409a15da PK	1	/*
	2	* ci13xxx_pci.c - MIPS USB IP core family device controller
	3	*
	4	* Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
	5	*
	6	* Author: David Lopo
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*/
	12
62bb84ed	13	#include <linux/platform_device.h>
409a15da PK	14	#include <linux/module.h>
409a15da PK	15	#include <linux/pci.h>
62bb84ed AS	16	#include <linux/interrupt.h>
62bb84ed AS	17	#include <linux/usb/gadget.h>
e443b333	18	#include <linux/usb/chipidea.h>
409a15da PK	19
	20	/* driver name */
	21	#define UDC_DRIVER_NAME "ci13xxx_pci"
	22
	23	/******************************************************************************
	24	* PCI block
	25	*****************************************************************************/
77c4400f	26	struct ci13xxx_platform_data pci_platdata = {
62bb84ed AS	27	.name = UDC_DRIVER_NAME,
	28	.capoffset = DEF_CAPOFFSET,
	29	};
409a15da	30
77c4400f	31	struct ci13xxx_platform_data langwell_pci_platdata = {
f01ef574	32	.name = UDC_DRIVER_NAME,
62bb84ed	33	.capoffset = 0,
f01ef574 PK	34	};
f01ef574 PK	35
77c4400f	36	struct ci13xxx_platform_data penwell_pci_platdata = {
bd841986 AS	37	.name = UDC_DRIVER_NAME,
	38	.capoffset = 0,
	39	.power_budget = 200,
	40	};
	41
409a15da PK	42	/**
	43	* ci13xxx_pci_probe: PCI probe
	44	* @pdev: USB device controller being probed
	45	* @id: PCI hotplug ID connecting controller to UDC framework
	46	*
	47	* This function returns an error code
	48	* Allocates basic PCI resources for this USB device controller, and then
	49	* invokes the udc_probe() method to start the UDC associated with it
	50	*/
41ac7b3a	51	static int ci13xxx_pci_probe(struct pci_dev *pdev,
409a15da PK	52	const struct pci_device_id *id)
409a15da PK	53	{
77c4400f	54	struct ci13xxx_platform_data platdata = (void )id->driver_data;
62bb84ed AS	55	struct platform_device *plat_ci;
	56	struct resource res[3];
	57	int retval = 0, nres = 2;
409a15da	58
77c4400f	59	if (!platdata) {
1989b5ce AS	60	dev_err(&pdev->dev, "device doesn't provide driver data\n");
	61	return -ENODEV;
	62	}
	63
409a15da PK	64	retval = pci_enable_device(pdev);
	65	if (retval)
	66	goto done;
	67
	68	if (!pdev->irq) {
	69	dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!");
	70	retval = -ENODEV;
	71	goto disable_device;
	72	}
	73
62bb84ed	74	pci_set_power_state(pdev, PCI_D0);
409a15da PK	75	pci_set_master(pdev);
	76	pci_try_set_mwi(pdev);
	77
62bb84ed AS	78	memset(res, 0, sizeof(res));
	79	res[0].start = pci_resource_start(pdev, 0);
	80	res[0].end = pci_resource_end(pdev, 0);
	81	res[0].flags = IORESOURCE_MEM;
	82	res[1].start = pdev->irq;
	83	res[1].flags = IORESOURCE_IRQ;
	84
cbc6dc2a RZ	85	plat_ci = ci13xxx_add_device(&pdev->dev, res, nres, platdata);
	86	if (IS_ERR(plat_ci)) {
	87	dev_err(&pdev->dev, "ci13xxx_add_device failed!\n");
	88	retval = PTR_ERR(plat_ci);
	89	goto disable_device;
62bb84ed AS	90	}
62bb84ed AS	91
62bb84ed AS	92	pci_set_drvdata(pdev, plat_ci);
62bb84ed AS	93
409a15da PK	94	return 0;
409a15da PK	95
409a15da PK	96	disable_device:
	97	pci_disable_device(pdev);
	98	done:
	99	return retval;
	100	}
	101
	102	/**
	103	* ci13xxx_pci_remove: PCI remove
	104	* @pdev: USB Device Controller being removed
	105	*
	106	* Reverses the effect of ci13xxx_pci_probe(),
	107	* first invoking the udc_remove() and then releases
	108	* all PCI resources allocated for this USB device controller
	109	*/
fb4e98ab	110	static void ci13xxx_pci_remove(struct pci_dev *pdev)
409a15da	111	{
62bb84ed AS	112	struct platform_device *plat_ci = pci_get_drvdata(pdev);
62bb84ed AS	113
cbc6dc2a	114	ci13xxx_remove_device(plat_ci);
62bb84ed	115	pci_set_drvdata(pdev, NULL);
409a15da PK	116	pci_disable_device(pdev);
	117	}
	118
	119	/**
	120	* PCI device table
	121	* PCI device structure
	122	*
	123	* Check "pci.h" for details
	124	*/
	125	static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = {
62bb84ed AS	126	{
62bb84ed AS	127	PCI_DEVICE(0x153F, 0x1004),
77c4400f	128	.driver_data = (kernel_ulong_t)&pci_platdata,
62bb84ed AS	129	},
	130	{
	131	PCI_DEVICE(0x153F, 0x1006),
77c4400f	132	.driver_data = (kernel_ulong_t)&pci_platdata,
62bb84ed AS	133	},
	134	{
	135	PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811),
77c4400f	136	.driver_data = (kernel_ulong_t)&langwell_pci_platdata,
62bb84ed AS	137	},
	138	{
	139	PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
77c4400f	140	.driver_data = (kernel_ulong_t)&penwell_pci_platdata,
62bb84ed	141	},
409a15da PK	142	{ 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ }
	143	};
	144	MODULE_DEVICE_TABLE(pci, ci13xxx_pci_id_table);
	145
	146	static struct pci_driver ci13xxx_pci_driver = {
	147	.name = UDC_DRIVER_NAME,
	148	.id_table = ci13xxx_pci_id_table,
	149	.probe = ci13xxx_pci_probe,
7690417d	150	.remove = ci13xxx_pci_remove,
409a15da PK	151	};
409a15da PK	152
3cdb7721	153	module_pci_driver(ci13xxx_pci_driver);
409a15da PK	154
	155	MODULE_AUTHOR("MIPS - David Lopo <dlopo@chipidea.mips.com>");
	156	MODULE_DESCRIPTION("MIPS CI13XXX USB Peripheral Controller");
	157	MODULE_LICENSE("GPL");
	158	MODULE_VERSION("June 2008");