linux/drivers/ata/pata_cs5530.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * pata-cs5530.c 	- CS5530 PATA for new ATA layer
 *			  (C) 2005 Red Hat Inc
 *
 * based upon cs5530.c by Mark Lord.
 *
 * Loosely based on the piix & svwks drivers.
 *
 * Documentation:
 *	Available from AMD web site.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <scsi/scsi_host.h>
#include <linux/libata.h>
#include <linux/dmi.h>

#define DRV_NAME …
#define DRV_VERSION …

static void __iomem *cs5530_port_base(struct ata_port *ap)
{ … }

/**
 *	cs5530_set_piomode		-	PIO setup
 *	@ap: ATA interface
 *	@adev: device on the interface
 *
 *	Set our PIO requirements. This is fairly simple on the CS5530
 *	chips.
 */

static void cs5530_set_piomode(struct ata_port *ap, struct ata_device *adev)
{ … }

/**
 *	cs5530_set_dmamode		-	DMA timing setup
 *	@ap: ATA interface
 *	@adev: Device being configured
 *
 *	We cannot mix MWDMA and UDMA without reloading timings each switch
 *	master to slave. We track the last DMA setup in order to minimise
 *	reloads.
 */

static void cs5530_set_dmamode(struct ata_port *ap, struct ata_device *adev)
{ … }

/**
 *	cs5530_qc_issue		-	command issue
 *	@qc: command pending
 *
 *	Called when the libata layer is about to issue a command. We wrap
 *	this interface so that we can load the correct ATA timings if
 *	necessary.  Specifically we have a problem that there is only
 *	one MWDMA/UDMA bit.
 */

static unsigned int cs5530_qc_issue(struct ata_queued_cmd *qc)
{ … }

static const struct scsi_host_template cs5530_sht = …;

static struct ata_port_operations cs5530_port_ops = …;

static const struct dmi_system_id palmax_dmi_table[] = …;

static int cs5530_is_palmax(void)
{ … }


/**
 *	cs5530_init_chip	-	Chipset init
 *
 *	Perform the chip initialisation work that is shared between both
 *	setup and resume paths
 */

static int cs5530_init_chip(void)
{ … }

/**
 *	cs5530_init_one		-	Initialise a CS5530
 *	@pdev: PCI device
 *	@id: Entry in match table
 *
 *	Install a driver for the newly found CS5530 companion chip. Most of
 *	this is just housekeeping. We have to set the chip up correctly and
 *	turn off various bits of emulation magic.
 */

static int cs5530_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{ … }

#ifdef CONFIG_PM_SLEEP
static int cs5530_reinit_one(struct pci_dev *pdev)
{ … }
#endif /* CONFIG_PM_SLEEP */

static const struct pci_device_id cs5530[] = …;

static struct pci_driver cs5530_pci_driver = …;

module_pci_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_DEVICE_TABLE(pci, cs5530);
MODULE_VERSION(…);