[deliverable/linux.git] / drivers / mmc / host / dw_mmc-pci.c

/*
 * Synopsys DesignWare Multimedia Card PCI Interface driver
 *
 * Copyright (C) 2012 Vayavya Labs Pvt. Ltd.
 *
 * 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/interrupt.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
#include <linux/mmc/dw_mmc.h>
#include "dw_mmc.h"

#define PCI_BAR_NO 2
#define SYNOPSYS_DW_MCI_VENDOR_ID 0x700
#define SYNOPSYS_DW_MCI_DEVICE_ID 0x1107
/* Defining the Capabilities */
#define DW_MCI_CAPABILITIES (MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED |\
				MMC_CAP_SD_HIGHSPEED | MMC_CAP_8_BIT_DATA |\
				MMC_CAP_SDIO_IRQ)

static struct dw_mci_board pci_board_data = {
	.num_slots			= 1,
	.caps				= DW_MCI_CAPABILITIES,
	.bus_hz				= 33 * 1000 * 1000,
	.detect_delay_ms		= 200,
	.fifo_depth			= 32,
};

static int dw_mci_pci_probe(struct pci_dev *pdev,
			    const struct pci_device_id *entries)
{
	struct dw_mci *host;
	int ret;

	ret = pcim_enable_device(pdev);
	if (ret)
		return ret;

	host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
	if (!host)
		return -ENOMEM;

	host->irq = pdev->irq;
	host->irq_flags = IRQF_SHARED;
	host->dev = &pdev->dev;
	host->pdata = &pci_board_data;

	ret = pcim_iomap_regions(pdev, 1 << PCI_BAR_NO, pci_name(pdev));
	if (ret)
		return ret;

	host->regs = pcim_iomap_table(pdev)[PCI_BAR_NO];

	ret = dw_mci_probe(host);
	if (ret)
		return ret;

	pci_set_drvdata(pdev, host);

	return 0;
}

static void dw_mci_pci_remove(struct pci_dev *pdev)
{
	struct dw_mci *host = pci_get_drvdata(pdev);

	dw_mci_remove(host);
}

#ifdef CONFIG_PM_SLEEP
static int dw_mci_pci_suspend(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct dw_mci *host = pci_get_drvdata(pdev);

	return dw_mci_suspend(host);
}

static int dw_mci_pci_resume(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct dw_mci *host = pci_get_drvdata(pdev);

	return dw_mci_resume(host);
}
#else
#define dw_mci_pci_suspend	NULL
#define dw_mci_pci_resume	NULL
#endif /* CONFIG_PM_SLEEP */

static SIMPLE_DEV_PM_OPS(dw_mci_pci_pmops, dw_mci_pci_suspend, dw_mci_pci_resume);

static DEFINE_PCI_DEVICE_TABLE(dw_mci_pci_id) = {
	{ PCI_DEVICE(SYNOPSYS_DW_MCI_VENDOR_ID, SYNOPSYS_DW_MCI_DEVICE_ID) },
	{}
};
MODULE_DEVICE_TABLE(pci, dw_mci_pci_id);

static struct pci_driver dw_mci_pci_driver = {
	.name		= "dw_mmc_pci",
	.id_table	= dw_mci_pci_id,
	.probe		= dw_mci_pci_probe,
	.remove		= dw_mci_pci_remove,
	.driver		=	{
		.pm =   &dw_mci_pci_pmops
	},
};

module_pci_driver(dw_mci_pci_driver);

MODULE_DESCRIPTION("DW Multimedia Card PCI Interface driver");
MODULE_AUTHOR("Shashidhar Hiremath <shashidharh@vayavyalabs.com>");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
62ca8034 SH	1	/*
	2	* Synopsys DesignWare Multimedia Card PCI Interface driver
	3	*
	4	* Copyright (C) 2012 Vayavya Labs Pvt. Ltd.
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*/
	11
	12	#include <linux/interrupt.h>
	13	#include <linux/module.h>
	14	#include <linux/io.h>
	15	#include <linux/irq.h>
	16	#include <linux/pci.h>
	17	#include <linux/slab.h>
	18	#include <linux/mmc/host.h>
	19	#include <linux/mmc/mmc.h>
	20	#include <linux/mmc/dw_mmc.h>
	21	#include "dw_mmc.h"
	22
	23	#define PCI_BAR_NO 2
62ca8034 SH	24	#define SYNOPSYS_DW_MCI_VENDOR_ID 0x700
	25	#define SYNOPSYS_DW_MCI_DEVICE_ID 0x1107
	26	/* Defining the Capabilities */
	27	#define DW_MCI_CAPABILITIES (MMC_CAP_4_BIT_DATA \| MMC_CAP_MMC_HIGHSPEED \|\
	28	MMC_CAP_SD_HIGHSPEED \| MMC_CAP_8_BIT_DATA \|\
	29	MMC_CAP_SDIO_IRQ)
	30
	31	static struct dw_mci_board pci_board_data = {
	32	.num_slots = 1,
	33	.caps = DW_MCI_CAPABILITIES,
	34	.bus_hz = 33 * 1000 * 1000,
	35	.detect_delay_ms = 200,
	36	.fifo_depth = 32,
	37	};
	38
c3be1efd	39	static int dw_mci_pci_probe(struct pci_dev *pdev,
13959741	40	const struct pci_device_id *entries)
62ca8034 SH	41	{
	42	struct dw_mci *host;
	43	int ret;
	44
13959741	45	ret = pcim_enable_device(pdev);
62ca8034 SH	46	if (ret)
62ca8034 SH	47	return ret;
62ca8034	48
13959741 AS	49	host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
	50	if (!host)
	51	return -ENOMEM;
62ca8034 SH	52
	53	host->irq = pdev->irq;
	54	host->irq_flags = IRQF_SHARED;
4a90920c	55	host->dev = &pdev->dev;
62ca8034 SH	56	host->pdata = &pci_board_data;
62ca8034 SH	57
13959741 AS	58	ret = pcim_iomap_regions(pdev, 1 << PCI_BAR_NO, pci_name(pdev));
	59	if (ret)
	60	return ret;
	61
afeb52d6	62	host->regs = pcim_iomap_table(pdev)[PCI_BAR_NO];
62ca8034	63
62ca8034 SH	64	ret = dw_mci_probe(host);
62ca8034 SH	65	if (ret)
13959741 AS	66	return ret;
	67
	68	pci_set_drvdata(pdev, host);
62ca8034	69
13959741	70	return 0;
62ca8034 SH	71	}
62ca8034 SH	72
6e0ee714	73	static void dw_mci_pci_remove(struct pci_dev *pdev)
62ca8034 SH	74	{
	75	struct dw_mci *host = pci_get_drvdata(pdev);
	76
	77	dw_mci_remove(host);
62ca8034 SH	78	}
	79
	80	#ifdef CONFIG_PM_SLEEP
	81	static int dw_mci_pci_suspend(struct device *dev)
	82	{
62ca8034 SH	83	struct pci_dev *pdev = to_pci_dev(dev);
	84	struct dw_mci *host = pci_get_drvdata(pdev);
	85
dd369800	86	return dw_mci_suspend(host);
62ca8034 SH	87	}
	88
	89	static int dw_mci_pci_resume(struct device *dev)
	90	{
62ca8034 SH	91	struct pci_dev *pdev = to_pci_dev(dev);
	92	struct dw_mci *host = pci_get_drvdata(pdev);
	93
dd369800	94	return dw_mci_resume(host);
62ca8034 SH	95	}
	96	#else
	97	#define dw_mci_pci_suspend NULL
	98	#define dw_mci_pci_resume NULL
	99	#endif /* CONFIG_PM_SLEEP */
	100
	101	static SIMPLE_DEV_PM_OPS(dw_mci_pci_pmops, dw_mci_pci_suspend, dw_mci_pci_resume);
	102
	103	static DEFINE_PCI_DEVICE_TABLE(dw_mci_pci_id) = {
	104	{ PCI_DEVICE(SYNOPSYS_DW_MCI_VENDOR_ID, SYNOPSYS_DW_MCI_DEVICE_ID) },
	105	{}
	106	};
	107	MODULE_DEVICE_TABLE(pci, dw_mci_pci_id);
	108
	109	static struct pci_driver dw_mci_pci_driver = {
	110	.name = "dw_mmc_pci",
	111	.id_table = dw_mci_pci_id,
	112	.probe = dw_mci_pci_probe,
4e608e4e	113	.remove = dw_mci_pci_remove,
62ca8034 SH	114	.driver = {
	115	.pm = &dw_mci_pci_pmops
	116	},
	117	};
	118
350e3e00	119	module_pci_driver(dw_mci_pci_driver);
62ca8034 SH	120
	121	MODULE_DESCRIPTION("DW Multimedia Card PCI Interface driver");
	122	MODULE_AUTHOR("Shashidhar Hiremath <shashidharh@vayavyalabs.com>");
	123	MODULE_LICENSE("GPL v2");