1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * pata_netcell.c - Netcell PATA driver
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * (c) 2006 Red Hat
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <linux/kernel.h>
9*4882a593Smuzhiyun #include <linux/module.h>
10*4882a593Smuzhiyun #include <linux/pci.h>
11*4882a593Smuzhiyun #include <linux/blkdev.h>
12*4882a593Smuzhiyun #include <linux/delay.h>
13*4882a593Smuzhiyun #include <linux/device.h>
14*4882a593Smuzhiyun #include <scsi/scsi_host.h>
15*4882a593Smuzhiyun #include <linux/libata.h>
16*4882a593Smuzhiyun #include <linux/ata.h>
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #define DRV_NAME "pata_netcell"
19*4882a593Smuzhiyun #define DRV_VERSION "0.1.7"
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun /* No PIO or DMA methods needed for this device */
22*4882a593Smuzhiyun
netcell_read_id(struct ata_device * adev,struct ata_taskfile * tf,u16 * id)23*4882a593Smuzhiyun static unsigned int netcell_read_id(struct ata_device *adev,
24*4882a593Smuzhiyun struct ata_taskfile *tf, u16 *id)
25*4882a593Smuzhiyun {
26*4882a593Smuzhiyun unsigned int err_mask = ata_do_dev_read_id(adev, tf, id);
27*4882a593Smuzhiyun /* Firmware forgets to mark words 85-87 valid */
28*4882a593Smuzhiyun if (err_mask == 0)
29*4882a593Smuzhiyun id[ATA_ID_CSF_DEFAULT] |= 0x4000;
30*4882a593Smuzhiyun return err_mask;
31*4882a593Smuzhiyun }
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun static struct scsi_host_template netcell_sht = {
34*4882a593Smuzhiyun ATA_BMDMA_SHT(DRV_NAME),
35*4882a593Smuzhiyun };
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun static struct ata_port_operations netcell_ops = {
38*4882a593Smuzhiyun .inherits = &ata_bmdma_port_ops,
39*4882a593Smuzhiyun .cable_detect = ata_cable_80wire,
40*4882a593Smuzhiyun .read_id = netcell_read_id,
41*4882a593Smuzhiyun };
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun /**
45*4882a593Smuzhiyun * netcell_init_one - Register Netcell ATA PCI device with kernel services
46*4882a593Smuzhiyun * @pdev: PCI device to register
47*4882a593Smuzhiyun * @ent: Entry in netcell_pci_tbl matching with @pdev
48*4882a593Smuzhiyun *
49*4882a593Smuzhiyun * Called from kernel PCI layer.
50*4882a593Smuzhiyun *
51*4882a593Smuzhiyun * LOCKING:
52*4882a593Smuzhiyun * Inherited from PCI layer (may sleep).
53*4882a593Smuzhiyun *
54*4882a593Smuzhiyun * RETURNS:
55*4882a593Smuzhiyun * Zero on success, or -ERRNO value.
56*4882a593Smuzhiyun */
57*4882a593Smuzhiyun
netcell_init_one(struct pci_dev * pdev,const struct pci_device_id * ent)58*4882a593Smuzhiyun static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
59*4882a593Smuzhiyun {
60*4882a593Smuzhiyun static const struct ata_port_info info = {
61*4882a593Smuzhiyun .flags = ATA_FLAG_SLAVE_POSS,
62*4882a593Smuzhiyun /* Actually we don't really care about these as the
63*4882a593Smuzhiyun firmware deals with it */
64*4882a593Smuzhiyun .pio_mask = ATA_PIO4,
65*4882a593Smuzhiyun .mwdma_mask = ATA_MWDMA2,
66*4882a593Smuzhiyun .udma_mask = ATA_UDMA5, /* UDMA 133 */
67*4882a593Smuzhiyun .port_ops = &netcell_ops,
68*4882a593Smuzhiyun };
69*4882a593Smuzhiyun const struct ata_port_info *port_info[] = { &info, NULL };
70*4882a593Smuzhiyun int rc;
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun ata_print_version_once(&pdev->dev, DRV_VERSION);
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun rc = pcim_enable_device(pdev);
75*4882a593Smuzhiyun if (rc)
76*4882a593Smuzhiyun return rc;
77*4882a593Smuzhiyun
78*4882a593Smuzhiyun /* Any chip specific setup/optimisation/messages here */
79*4882a593Smuzhiyun ata_pci_bmdma_clear_simplex(pdev);
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun /* And let the library code do the work */
82*4882a593Smuzhiyun return ata_pci_bmdma_init_one(pdev, port_info, &netcell_sht, NULL, 0);
83*4882a593Smuzhiyun }
84*4882a593Smuzhiyun
85*4882a593Smuzhiyun static const struct pci_device_id netcell_pci_tbl[] = {
86*4882a593Smuzhiyun { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },
87*4882a593Smuzhiyun
88*4882a593Smuzhiyun { } /* terminate list */
89*4882a593Smuzhiyun };
90*4882a593Smuzhiyun
91*4882a593Smuzhiyun static struct pci_driver netcell_pci_driver = {
92*4882a593Smuzhiyun .name = DRV_NAME,
93*4882a593Smuzhiyun .id_table = netcell_pci_tbl,
94*4882a593Smuzhiyun .probe = netcell_init_one,
95*4882a593Smuzhiyun .remove = ata_pci_remove_one,
96*4882a593Smuzhiyun #ifdef CONFIG_PM_SLEEP
97*4882a593Smuzhiyun .suspend = ata_pci_device_suspend,
98*4882a593Smuzhiyun .resume = ata_pci_device_resume,
99*4882a593Smuzhiyun #endif
100*4882a593Smuzhiyun };
101*4882a593Smuzhiyun
102*4882a593Smuzhiyun module_pci_driver(netcell_pci_driver);
103*4882a593Smuzhiyun
104*4882a593Smuzhiyun MODULE_AUTHOR("Alan Cox");
105*4882a593Smuzhiyun MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
106*4882a593Smuzhiyun MODULE_LICENSE("GPL");
107*4882a593Smuzhiyun MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
108*4882a593Smuzhiyun MODULE_VERSION(DRV_VERSION);
109