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/*
* pata_netcell.c - Netcell PATA driver
*
* (c) 2006 Red Hat
*/
#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 <linux/device.h>
#include <scsi/scsi_host.h>
#include <linux/libata.h>
#include <linux/ata.h>
#define DRV_NAME "pata_netcell"
#define DRV_VERSION "0.1.7"
/* No PIO or DMA methods needed for this device */
static unsigned int netcell_read_id(struct ata_device *adev,
struct ata_taskfile *tf, u16 *id)
{
unsigned int err_mask = ata_do_dev_read_id(adev, tf, id);
/* Firmware forgets to mark words 85-87 valid */
if (err_mask == 0)
id[ATA_ID_CSF_DEFAULT] |= 0x4000;
return err_mask;
}
static struct scsi_host_template netcell_sht = {
ATA_BMDMA_SHT(DRV_NAME),
};
static struct ata_port_operations netcell_ops = {
.inherits = &ata_bmdma_port_ops,
.cable_detect = ata_cable_80wire,
.read_id = netcell_read_id,
};
/**
* netcell_init_one - Register Netcell ATA PCI device with kernel services
* @pdev: PCI device to register
* @ent: Entry in netcell_pci_tbl matching with @pdev
*
* Called from kernel PCI layer.
*
* LOCKING:
* Inherited from PCI layer (may sleep).
*
* RETURNS:
* Zero on success, or -ERRNO value.
*/
static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
{
static const struct ata_port_info info = {
.flags = ATA_FLAG_SLAVE_POSS,
/* Actually we don't really care about these as the
firmware deals with it */
.pio_mask = ATA_PIO4,
.mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA5, /* UDMA 133 */
.port_ops = &netcell_ops,
};
const struct ata_port_info *port_info[] = { &info, NULL };
int rc;
ata_print_version_once(&pdev->dev, DRV_VERSION);
rc = pcim_enable_device(pdev);
if (rc)
return rc;
/* Any chip specific setup/optimisation/messages here */
ata_pci_bmdma_clear_simplex(pdev);
/* And let the library code do the work */
return ata_pci_bmdma_init_one(pdev, port_info, &netcell_sht, NULL, 0);
}
static const struct pci_device_id netcell_pci_tbl[] = {
{ PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },
{ } /* terminate list */
};
static struct pci_driver netcell_pci_driver = {
.name = DRV_NAME,
.id_table = netcell_pci_tbl,
.probe = netcell_init_one,
.remove = ata_pci_remove_one,
#ifdef CONFIG_PM
.suspend = ata_pci_device_suspend,
.resume = ata_pci_device_resume,
#endif
};
static int __init netcell_init(void)
{
return pci_register_driver(&netcell_pci_driver);
}
static void __exit netcell_exit(void)
{
pci_unregister_driver(&netcell_pci_driver);
}
module_init(netcell_init);
module_exit(netcell_exit);
MODULE_AUTHOR("Alan Cox");
MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
MODULE_VERSION(DRV_VERSION);
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