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