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
22static 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
32static struct scsi_host_template netcell_sht = {
33 ATA_BMDMA_SHT(DRV_NAME),
34};
35
36static 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
57static 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
84static const struct pci_device_id netcell_pci_tbl[] = {
85 { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },
86
87 { } /* terminate list */
88};
89
90static 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_SLEEP
96 .suspend = ata_pci_device_suspend,
97 .resume = ata_pci_device_resume,
98#endif
99};
100
101module_pci_driver(netcell_pci_driver);
102
103MODULE_AUTHOR("Alan Cox");
104MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
105MODULE_LICENSE("GPL");
106MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
107MODULE_VERSION(DRV_VERSION);
108