mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
2fc75da0c5
This patch converts the drivers in drivers/ata/* to use module_pci_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Mikael Pettersson <mikpe@it.uu.se> Cc: Mark Lord <kernel@teksavvy.com> Cc: Jeremy Higdon <jeremy@sgi.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
127 lines
3.6 KiB
C
127 lines
3.6 KiB
C
/*
|
|
* pata_piccolo.c - Toshiba Piccolo PATA/SATA controller driver.
|
|
*
|
|
* This is basically an update to ata_generic.c to add Toshiba Piccolo support
|
|
* then split out to keep ata_generic "clean".
|
|
*
|
|
* Copyright 2005 Red Hat Inc, all rights reserved.
|
|
*
|
|
* Elements from ide/pci/generic.c
|
|
* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
|
|
* Portions (C) Copyright 2002 Red Hat Inc <alan@redhat.com>
|
|
*
|
|
* May be copied or modified under the terms of the GNU General Public License
|
|
*
|
|
* The timing data tables/programming info are courtesy of the NetBSD driver
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/init.h>
|
|
#include <linux/blkdev.h>
|
|
#include <linux/delay.h>
|
|
#include <scsi/scsi_host.h>
|
|
#include <linux/libata.h>
|
|
|
|
#define DRV_NAME "pata_piccolo"
|
|
#define DRV_VERSION "0.0.1"
|
|
|
|
|
|
|
|
static void tosh_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
|
{
|
|
static const u16 pio[6] = { /* For reg 0x50 low word & E088 */
|
|
0x0566, 0x0433, 0x0311, 0x0201, 0x0200, 0x0100
|
|
};
|
|
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
|
u16 conf;
|
|
pci_read_config_word(pdev, 0x50, &conf);
|
|
conf &= 0xE088;
|
|
conf |= pio[adev->pio_mode - XFER_PIO_0];
|
|
pci_write_config_word(pdev, 0x50, conf);
|
|
}
|
|
|
|
static void tosh_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
|
u32 conf;
|
|
pci_read_config_dword(pdev, 0x5C, &conf);
|
|
conf &= 0x78FFE088; /* Keep the other bits */
|
|
if (adev->dma_mode >= XFER_UDMA_0) {
|
|
int udma = adev->dma_mode - XFER_UDMA_0;
|
|
conf |= 0x80000000;
|
|
conf |= (udma + 2) << 28;
|
|
conf |= (2 - udma) * 0x111; /* spread into three nibbles */
|
|
} else {
|
|
static const u32 mwdma[4] = {
|
|
0x0655, 0x0200, 0x0200, 0x0100
|
|
};
|
|
conf |= mwdma[adev->dma_mode - XFER_MW_DMA_0];
|
|
}
|
|
pci_write_config_dword(pdev, 0x5C, conf);
|
|
}
|
|
|
|
|
|
static struct scsi_host_template tosh_sht = {
|
|
ATA_BMDMA_SHT(DRV_NAME),
|
|
};
|
|
|
|
static struct ata_port_operations tosh_port_ops = {
|
|
.inherits = &ata_bmdma_port_ops,
|
|
.cable_detect = ata_cable_unknown,
|
|
.set_piomode = tosh_set_piomode,
|
|
.set_dmamode = tosh_set_dmamode
|
|
};
|
|
|
|
/**
|
|
* ata_tosh_init - attach generic IDE
|
|
* @dev: PCI device found
|
|
* @id: match entry
|
|
*
|
|
* Called each time a matching IDE interface is found. We check if the
|
|
* interface is one we wish to claim and if so we perform any chip
|
|
* specific hacks then let the ATA layer do the heavy lifting.
|
|
*/
|
|
|
|
static int ata_tosh_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
|
{
|
|
static const struct ata_port_info info = {
|
|
.flags = ATA_FLAG_SLAVE_POSS,
|
|
.pio_mask = ATA_PIO5,
|
|
.mwdma_mask = ATA_MWDMA2,
|
|
.udma_mask = ATA_UDMA2,
|
|
.port_ops = &tosh_port_ops
|
|
};
|
|
const struct ata_port_info *ppi[] = { &info, &ata_dummy_port_info };
|
|
/* Just one port for the moment */
|
|
return ata_pci_bmdma_init_one(dev, ppi, &tosh_sht, NULL, 0);
|
|
}
|
|
|
|
static struct pci_device_id ata_tosh[] = {
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), },
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), },
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_3), },
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_5), },
|
|
{ 0, },
|
|
};
|
|
|
|
static struct pci_driver ata_tosh_pci_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = ata_tosh,
|
|
.probe = ata_tosh_init_one,
|
|
.remove = ata_pci_remove_one,
|
|
#ifdef CONFIG_PM
|
|
.suspend = ata_pci_device_suspend,
|
|
.resume = ata_pci_device_resume,
|
|
#endif
|
|
};
|
|
|
|
module_pci_driver(ata_tosh_pci_driver);
|
|
|
|
MODULE_AUTHOR("Alan Cox");
|
|
MODULE_DESCRIPTION("Low level driver for Toshiba Piccolo ATA");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DEVICE_TABLE(pci, ata_tosh);
|
|
MODULE_VERSION(DRV_VERSION);
|