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/blkdev.h> 11 #include <linux/delay.h> 12 #include <linux/device.h> 13 #include <scsi/scsi_host.h> 14 #include <linux/libata.h> 15 #include <linux/ata.h> 16 17 #define DRV_NAME "pata_netcell" 18 #define DRV_VERSION "0.1.7" 19 20 /* No PIO or DMA methods needed for this device */ 21 22 static unsigned int netcell_read_id(struct ata_device *adev, 23 struct ata_taskfile *tf, u16 *id) 24 { 25 unsigned int err_mask = ata_do_dev_read_id(adev, tf, id); 26 /* Firmware forgets to mark words 85-87 valid */ 27 if (err_mask == 0) 28 id[ATA_ID_CSF_DEFAULT] |= 0x4000; 29 return err_mask; 30 } 31 32 static struct scsi_host_template netcell_sht = { 33 ATA_BMDMA_SHT(DRV_NAME), 34 }; 35 36 static struct ata_port_operations netcell_ops = { 37 .inherits = &ata_bmdma_port_ops, 38 .cable_detect = ata_cable_80wire, 39 .read_id = netcell_read_id, 40 }; 41 42 43 /** 44 * netcell_init_one - Register Netcell ATA PCI device with kernel services 45 * @pdev: PCI device to register 46 * @ent: Entry in netcell_pci_tbl matching with @pdev 47 * 48 * Called from kernel PCI layer. 49 * 50 * LOCKING: 51 * Inherited from PCI layer (may sleep). 52 * 53 * RETURNS: 54 * Zero on success, or -ERRNO value. 55 */ 56 57 static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) 58 { 59 static const struct ata_port_info info = { 60 .flags = ATA_FLAG_SLAVE_POSS, 61 /* Actually we don't really care about these as the 62 firmware deals with it */ 63 .pio_mask = ATA_PIO4, 64 .mwdma_mask = ATA_MWDMA2, 65 .udma_mask = ATA_UDMA5, /* UDMA 133 */ 66 .port_ops = &netcell_ops, 67 }; 68 const struct ata_port_info *port_info[] = { &info, NULL }; 69 int rc; 70 71 ata_print_version_once(&pdev->dev, DRV_VERSION); 72 73 rc = pcim_enable_device(pdev); 74 if (rc) 75 return rc; 76 77 /* Any chip specific setup/optimisation/messages here */ 78 ata_pci_bmdma_clear_simplex(pdev); 79 80 /* And let the library code do the work */ 81 return ata_pci_bmdma_init_one(pdev, port_info, &netcell_sht, NULL, 0); 82 } 83 84 static const struct pci_device_id netcell_pci_tbl[] = { 85 { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), }, 86 87 { } /* terminate list */ 88 }; 89 90 static struct pci_driver netcell_pci_driver = { 91 .name = DRV_NAME, 92 .id_table = netcell_pci_tbl, 93 .probe = netcell_init_one, 94 .remove = ata_pci_remove_one, 95 #ifdef CONFIG_PM 96 .suspend = ata_pci_device_suspend, 97 .resume = ata_pci_device_resume, 98 #endif 99 }; 100 101 module_pci_driver(netcell_pci_driver); 102 103 MODULE_AUTHOR("Alan Cox"); 104 MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID"); 105 MODULE_LICENSE("GPL"); 106 MODULE_DEVICE_TABLE(pci, netcell_pci_tbl); 107 MODULE_VERSION(DRV_VERSION); 108