linux/drivers/ata/pata_platform.c

/*
 * Generic platform device PATA driver
 *
 * Copyright (C) 2006 - 2007  Paul Mundt
 *
 * Based on pata_pcmcia:
 *
 *   Copyright 2005-2006 Red Hat Inc, all rights reserved.
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/blkdev.h>
#include <scsi/scsi_host.h>
#include <linux/ata.h>
#include <linux/libata.h>
#include <linux/platform_device.h>
#include <linux/ata_platform.h>

#define DRV_NAME …
#define DRV_VERSION …

static int pio_mask = …;
module_param(pio_mask, int, 0);
MODULE_PARM_DESC(…) …;

/*
 * Provide our own set_mode() as we don't want to change anything that has
 * already been configured..
 */
static int pata_platform_set_mode(struct ata_link *link, struct ata_device **unused)
{ … }

static const struct scsi_host_template pata_platform_sht = …;

static void pata_platform_setup_port(struct ata_ioports *ioaddr,
				     unsigned int shift)
{ … }

/**
 *	__pata_platform_probe		-	attach a platform interface
 *	@dev: device
 *	@io_res: Resource representing I/O base
 *	@ctl_res: Resource representing CTL base
 *	@irq_res: Resource representing IRQ and its flags
 *	@ioport_shift: I/O port shift
 *	@__pio_mask: PIO mask
 *	@sht: scsi_host_template to use when registering
 *	@use16bit: Flag to indicate 16-bit IO instead of 32-bit
 *
 *	Register a platform bus IDE interface. Such interfaces are PIO and we
 *	assume do not support IRQ sharing.
 *
 *	Platform devices are expected to contain at least 2 resources per port:
 *
 *		- I/O Base (IORESOURCE_IO or IORESOURCE_MEM)
 *		- CTL Base (IORESOURCE_IO or IORESOURCE_MEM)
 *
 *	and optionally:
 *
 *		- IRQ	   (IORESOURCE_IRQ)
 *
 *	If the base resources are both mem types, the ioremap() is handled
 *	here. For IORESOURCE_IO, it's assumed that there's no remapping
 *	necessary.
 *
 *	If no IRQ resource is present, PIO polling mode is used instead.
 */
int __pata_platform_probe(struct device *dev, struct resource *io_res,
			  struct resource *ctl_res, struct resource *irq_res,
			  unsigned int ioport_shift, int __pio_mask,
			  const struct scsi_host_template *sht, bool use16bit)
{ … }
EXPORT_SYMBOL_GPL(…);

static int pata_platform_probe(struct platform_device *pdev)
{ … }

static struct platform_driver pata_platform_driver = …;

module_platform_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_VERSION(…);
MODULE_ALIAS(…) …;