drivers/ata/pata_netcell.c

   1 /*
   2  *    pata_netcell.c - Netcell PATA driver
   3  *
   4  *      (c) 2006 Red Hat
   5  */
   6
   7 #include <linux/kernel.h>
   8 #include <linux/module.h>
   9 #include <linux/pci.h>
  10 #include <linux/init.h>
  11 #include <linux/blkdev.h>
  12 #include <linux/delay.h>
  13 #include <linux/device.h>
  14 #include <scsi/scsi_host.h>
  15 #include <linux/libata.h>
  16 #include <linux/ata.h>
  17
  18 #define DRV_NAME        "pata_netcell"
  19 #define DRV_VERSION     "0.1.7"
  20
  21 /* No PIO or DMA methods needed for this device */
  22
  23 static struct scsi_host_template netcell_sht = {
  24         ATA_BMDMA_SHT(DRV_NAME),
  25 };
  26
  27 static struct ata_port_operations netcell_ops = {
  28         .inherits       = &ata_bmdma_port_ops,
  29         .cable_detect           = ata_cable_80wire,
  30 };
  31
  32
  33 /**
  34  *      netcell_init_one - Register Netcell ATA PCI device with kernel services
  35  *      @pdev: PCI device to register
  36  *      @ent: Entry in netcell_pci_tbl matching with @pdev
  37  *
  38  *      Called from kernel PCI layer.
  39  *
  40  *      LOCKING:
  41  *      Inherited from PCI layer (may sleep).
  42  *
  43  *      RETURNS:
  44  *      Zero on success, or -ERRNO value.
  45  */
  46
  47 static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
  48 {
  49         static int printed_version;
  50         static const struct ata_port_info info = {
  51                 .flags          = ATA_FLAG_SLAVE_POSS,
  52                 /* Actually we don't really care about these as the
  53                    firmware deals with it */
  54                 .pio_mask       = 0x1f, /* pio0-4 */
  55                 .mwdma_mask     = 0x07, /* mwdma0-2 */
  56                 .udma_mask      = ATA_UDMA5, /* UDMA 133 */
  57                 .port_ops       = &netcell_ops,
  58         };
  59         const struct ata_port_info *port_info[] = { &info, NULL };
  60         int rc;
  61
  62         if (!printed_version++)
  63                 dev_printk(KERN_DEBUG, &pdev->dev,
  64                            "version " DRV_VERSION "\n");
  65
  66         rc = pcim_enable_device(pdev);
  67         if (rc)
  68                 return rc;
  69
  70         /* Any chip specific setup/optimisation/messages here */
  71         ata_pci_bmdma_clear_simplex(pdev);
  72
  73         /* And let the library code do the work */
  74         return ata_pci_sff_init_one(pdev, port_info, &netcell_sht, NULL);
  75 }
  76
  77 static const struct pci_device_id netcell_pci_tbl[] = {
  78         { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },
  79
  80         { }     /* terminate list */
  81 };
  82
  83 static struct pci_driver netcell_pci_driver = {
  84         .name                   = DRV_NAME,
  85         .id_table               = netcell_pci_tbl,
  86         .probe                  = netcell_init_one,
  87         .remove                 = ata_pci_remove_one,
  88 #ifdef CONFIG_PM
  89         .suspend                = ata_pci_device_suspend,
  90         .resume                 = ata_pci_device_resume,
  91 #endif
  92 };
  93
  94 static int __init netcell_init(void)
  95 {
  96         return pci_register_driver(&netcell_pci_driver);
  97 }
  98
  99 static void __exit netcell_exit(void)
 100 {
 101         pci_unregister_driver(&netcell_pci_driver);
 102 }
 103
 104 module_init(netcell_init);
 105 module_exit(netcell_exit);
 106
 107 MODULE_AUTHOR("Alan Cox");
 108 MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
 109 MODULE_LICENSE("GPL");
 110 MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
 111 MODULE_VERSION(DRV_VERSION);
 112