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Jeff Garzik669a5db2006-08-29 18:12:40 -04001/*
2 * pata_netcell.c - Netcell PATA driver
3 *
Alan Coxab771632008-10-27 15:09:10 +00004 * (c) 2006 Red Hat
Jeff Garzik669a5db2006-08-29 18:12:40 -04005 */
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"
Alan Cox3b4ba592007-03-26 21:43:40 -080019#define DRV_VERSION "0.1.7"
Jeff Garzik669a5db2006-08-29 18:12:40 -040020
21/* No PIO or DMA methods needed for this device */
22
Alan Coxd3ae33e2009-06-02 12:34:31 +010023static unsigned int netcell_read_id(struct ata_device *adev,
24 struct ata_taskfile *tf, u16 *id)
25{
26 unsigned int err_mask = ata_do_dev_read_id(adev, tf, id);
27 /* Firmware forgets to mark words 85-87 valid */
28 if (err_mask == 0)
Alan Cox5284c6b2009-06-08 12:31:00 +010029 id[ATA_ID_CSF_DEFAULT] |= 0x4000;
Alan Coxd3ae33e2009-06-02 12:34:31 +010030 return err_mask;
31}
32
Jeff Garzik669a5db2006-08-29 18:12:40 -040033static struct scsi_host_template netcell_sht = {
Tejun Heo68d1d072008-03-25 12:22:49 +090034 ATA_BMDMA_SHT(DRV_NAME),
Jeff Garzik669a5db2006-08-29 18:12:40 -040035};
36
Tejun Heo029cfd62008-03-25 12:22:49 +090037static struct ata_port_operations netcell_ops = {
38 .inherits = &ata_bmdma_port_ops,
Alan Coxd3ae33e2009-06-02 12:34:31 +010039 .cable_detect = ata_cable_80wire,
40 .read_id = netcell_read_id,
Jeff Garzik669a5db2006-08-29 18:12:40 -040041};
42
43
44/**
45 * netcell_init_one - Register Netcell ATA PCI device with kernel services
46 * @pdev: PCI device to register
47 * @ent: Entry in netcell_pci_tbl matching with @pdev
48 *
49 * Called from kernel PCI layer.
50 *
51 * LOCKING:
52 * Inherited from PCI layer (may sleep).
53 *
54 * RETURNS:
55 * Zero on success, or -ERRNO value.
56 */
57
58static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
59{
60 static int printed_version;
Tejun Heo1626aeb2007-05-04 12:43:58 +020061 static const struct ata_port_info info = {
Jeff Garzik1d2808f2007-05-28 06:59:48 -040062 .flags = ATA_FLAG_SLAVE_POSS,
Jeff Garzik669a5db2006-08-29 18:12:40 -040063 /* Actually we don't really care about these as the
64 firmware deals with it */
Erik Inge Bolsø14bdef92009-03-14 21:38:24 +010065 .pio_mask = ATA_PIO4,
66 .mwdma_mask = ATA_MWDMA2,
Jeff Garzikbf6263a2007-07-09 12:16:50 -040067 .udma_mask = ATA_UDMA5, /* UDMA 133 */
Jeff Garzik669a5db2006-08-29 18:12:40 -040068 .port_ops = &netcell_ops,
69 };
Tejun Heo1626aeb2007-05-04 12:43:58 +020070 const struct ata_port_info *port_info[] = { &info, NULL };
Tejun Heof08048e2008-03-25 12:22:47 +090071 int rc;
Jeff Garzik669a5db2006-08-29 18:12:40 -040072
73 if (!printed_version++)
74 dev_printk(KERN_DEBUG, &pdev->dev,
75 "version " DRV_VERSION "\n");
76
Tejun Heof08048e2008-03-25 12:22:47 +090077 rc = pcim_enable_device(pdev);
78 if (rc)
79 return rc;
80
Jeff Garzik669a5db2006-08-29 18:12:40 -040081 /* Any chip specific setup/optimisation/messages here */
Tejun Heo9363c382008-04-07 22:47:16 +090082 ata_pci_bmdma_clear_simplex(pdev);
Jeff Garzik85cd7252006-08-31 00:03:49 -040083
Jeff Garzik669a5db2006-08-29 18:12:40 -040084 /* And let the library code do the work */
Tejun Heo9363c382008-04-07 22:47:16 +090085 return ata_pci_sff_init_one(pdev, port_info, &netcell_sht, NULL);
Jeff Garzik669a5db2006-08-29 18:12:40 -040086}
87
88static const struct pci_device_id netcell_pci_tbl[] = {
Jeff Garzik2d2744f2006-09-28 20:21:59 -040089 { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },
90
Jeff Garzik669a5db2006-08-29 18:12:40 -040091 { } /* terminate list */
92};
93
94static struct pci_driver netcell_pci_driver = {
95 .name = DRV_NAME,
96 .id_table = netcell_pci_tbl,
97 .probe = netcell_init_one,
98 .remove = ata_pci_remove_one,
Tejun Heo438ac6d2007-03-02 17:31:26 +090099#ifdef CONFIG_PM
Alan30ced0f2006-11-22 16:57:36 +0000100 .suspend = ata_pci_device_suspend,
101 .resume = ata_pci_device_resume,
Tejun Heo438ac6d2007-03-02 17:31:26 +0900102#endif
Jeff Garzik669a5db2006-08-29 18:12:40 -0400103};
104
105static int __init netcell_init(void)
106{
107 return pci_register_driver(&netcell_pci_driver);
108}
109
110static void __exit netcell_exit(void)
111{
112 pci_unregister_driver(&netcell_pci_driver);
113}
114
115module_init(netcell_init);
116module_exit(netcell_exit);
117
118MODULE_AUTHOR("Alan Cox");
119MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
120MODULE_LICENSE("GPL");
121MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
122MODULE_VERSION(DRV_VERSION);
123