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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{
Tejun Heo1626aeb2007-05-04 12:43:58 +020060 static const struct ata_port_info info = {
Jeff Garzik1d2808f2007-05-28 06:59:48 -040061 .flags = ATA_FLAG_SLAVE_POSS,
Jeff Garzik669a5db2006-08-29 18:12:40 -040062 /* Actually we don't really care about these as the
63 firmware deals with it */
Erik Inge Bolsø14bdef92009-03-14 21:38:24 +010064 .pio_mask = ATA_PIO4,
65 .mwdma_mask = ATA_MWDMA2,
Jeff Garzikbf6263a2007-07-09 12:16:50 -040066 .udma_mask = ATA_UDMA5, /* UDMA 133 */
Jeff Garzik669a5db2006-08-29 18:12:40 -040067 .port_ops = &netcell_ops,
68 };
Tejun Heo1626aeb2007-05-04 12:43:58 +020069 const struct ata_port_info *port_info[] = { &info, NULL };
Tejun Heof08048e2008-03-25 12:22:47 +090070 int rc;
Jeff Garzik669a5db2006-08-29 18:12:40 -040071
Joe Perches06296a12011-04-15 15:52:00 -070072 ata_print_version_once(&pdev->dev, DRV_VERSION);
Jeff Garzik669a5db2006-08-29 18:12:40 -040073
Tejun Heof08048e2008-03-25 12:22:47 +090074 rc = pcim_enable_device(pdev);
75 if (rc)
76 return rc;
77
Jeff Garzik669a5db2006-08-29 18:12:40 -040078 /* Any chip specific setup/optimisation/messages here */
Tejun Heo9363c382008-04-07 22:47:16 +090079 ata_pci_bmdma_clear_simplex(pdev);
Jeff Garzik85cd7252006-08-31 00:03:49 -040080
Jeff Garzik669a5db2006-08-29 18:12:40 -040081 /* And let the library code do the work */
Tejun Heo1c5afdf2010-05-19 22:10:22 +020082 return ata_pci_bmdma_init_one(pdev, port_info, &netcell_sht, NULL, 0);
Jeff Garzik669a5db2006-08-29 18:12:40 -040083}
84
85static const struct pci_device_id netcell_pci_tbl[] = {
Jeff Garzik2d2744f2006-09-28 20:21:59 -040086 { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },
87
Jeff Garzik669a5db2006-08-29 18:12:40 -040088 { } /* terminate list */
89};
90
91static struct pci_driver netcell_pci_driver = {
92 .name = DRV_NAME,
93 .id_table = netcell_pci_tbl,
94 .probe = netcell_init_one,
95 .remove = ata_pci_remove_one,
Tejun Heo438ac6d2007-03-02 17:31:26 +090096#ifdef CONFIG_PM
Alan30ced0f2006-11-22 16:57:36 +000097 .suspend = ata_pci_device_suspend,
98 .resume = ata_pci_device_resume,
Tejun Heo438ac6d2007-03-02 17:31:26 +090099#endif
Jeff Garzik669a5db2006-08-29 18:12:40 -0400100};
101
102static int __init netcell_init(void)
103{
104 return pci_register_driver(&netcell_pci_driver);
105}
106
107static void __exit netcell_exit(void)
108{
109 pci_unregister_driver(&netcell_pci_driver);
110}
111
112module_init(netcell_init);
113module_exit(netcell_exit);
114
115MODULE_AUTHOR("Alan Cox");
116MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
117MODULE_LICENSE("GPL");
118MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
119MODULE_VERSION(DRV_VERSION);
120