293 lines
7.6 KiB
C
293 lines
7.6 KiB
C
/*
|
|
* sata_uli.c - ULi Electronics SATA
|
|
*
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*
|
|
* libata documentation is available via 'make {ps|pdf}docs',
|
|
* as Documentation/DocBook/libata.*
|
|
*
|
|
* Hardware documentation available under NDA.
|
|
*
|
|
*/
|
|
|
|
#include <linux/config.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/init.h>
|
|
#include <linux/blkdev.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/interrupt.h>
|
|
#include "scsi.h"
|
|
#include <scsi/scsi_host.h>
|
|
#include <linux/libata.h>
|
|
|
|
#define DRV_NAME "sata_uli"
|
|
#define DRV_VERSION "0.5"
|
|
|
|
enum {
|
|
uli_5289 = 0,
|
|
uli_5287 = 1,
|
|
uli_5281 = 2,
|
|
|
|
/* PCI configuration registers */
|
|
ULI5287_BASE = 0x90, /* sata0 phy SCR registers */
|
|
ULI5287_OFFS = 0x10, /* offset from sata0->sata1 phy regs */
|
|
ULI5281_BASE = 0x60, /* sata0 phy SCR registers */
|
|
ULI5281_OFFS = 0x60, /* offset from sata0->sata1 phy regs */
|
|
};
|
|
|
|
static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
|
|
static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg);
|
|
static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
|
|
|
|
static struct pci_device_id uli_pci_tbl[] = {
|
|
{ PCI_VENDOR_ID_AL, 0x5289, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5289 },
|
|
{ PCI_VENDOR_ID_AL, 0x5287, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5287 },
|
|
{ PCI_VENDOR_ID_AL, 0x5281, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5281 },
|
|
{ } /* terminate list */
|
|
};
|
|
|
|
|
|
static struct pci_driver uli_pci_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = uli_pci_tbl,
|
|
.probe = uli_init_one,
|
|
.remove = ata_pci_remove_one,
|
|
};
|
|
|
|
static Scsi_Host_Template uli_sht = {
|
|
.module = THIS_MODULE,
|
|
.name = DRV_NAME,
|
|
.ioctl = ata_scsi_ioctl,
|
|
.queuecommand = ata_scsi_queuecmd,
|
|
.eh_strategy_handler = ata_scsi_error,
|
|
.can_queue = ATA_DEF_QUEUE,
|
|
.this_id = ATA_SHT_THIS_ID,
|
|
.sg_tablesize = LIBATA_MAX_PRD,
|
|
.max_sectors = ATA_MAX_SECTORS,
|
|
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
|
.emulated = ATA_SHT_EMULATED,
|
|
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
|
.proc_name = DRV_NAME,
|
|
.dma_boundary = ATA_DMA_BOUNDARY,
|
|
.slave_configure = ata_scsi_slave_config,
|
|
.bios_param = ata_std_bios_param,
|
|
.ordered_flush = 1,
|
|
};
|
|
|
|
static struct ata_port_operations uli_ops = {
|
|
.port_disable = ata_port_disable,
|
|
|
|
.tf_load = ata_tf_load,
|
|
.tf_read = ata_tf_read,
|
|
.check_status = ata_check_status,
|
|
.exec_command = ata_exec_command,
|
|
.dev_select = ata_std_dev_select,
|
|
|
|
.phy_reset = sata_phy_reset,
|
|
|
|
.bmdma_setup = ata_bmdma_setup,
|
|
.bmdma_start = ata_bmdma_start,
|
|
.bmdma_stop = ata_bmdma_stop,
|
|
.bmdma_status = ata_bmdma_status,
|
|
.qc_prep = ata_qc_prep,
|
|
.qc_issue = ata_qc_issue_prot,
|
|
|
|
.eng_timeout = ata_eng_timeout,
|
|
|
|
.irq_handler = ata_interrupt,
|
|
.irq_clear = ata_bmdma_irq_clear,
|
|
|
|
.scr_read = uli_scr_read,
|
|
.scr_write = uli_scr_write,
|
|
|
|
.port_start = ata_port_start,
|
|
.port_stop = ata_port_stop,
|
|
.host_stop = ata_host_stop,
|
|
};
|
|
|
|
static struct ata_port_info uli_port_info = {
|
|
.sht = &uli_sht,
|
|
.host_flags = ATA_FLAG_SATA | ATA_FLAG_SATA_RESET |
|
|
ATA_FLAG_NO_LEGACY,
|
|
.pio_mask = 0x03, //support pio mode 4 (FIXME)
|
|
.udma_mask = 0x7f, //support udma mode 6
|
|
.port_ops = &uli_ops,
|
|
};
|
|
|
|
|
|
MODULE_AUTHOR("Peer Chen");
|
|
MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
|
|
MODULE_VERSION(DRV_VERSION);
|
|
|
|
static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
|
|
{
|
|
return ap->ioaddr.scr_addr + (4 * sc_reg);
|
|
}
|
|
|
|
static u32 uli_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
|
|
unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
|
|
u32 val;
|
|
|
|
pci_read_config_dword(pdev, cfg_addr, &val);
|
|
return val;
|
|
}
|
|
|
|
static void uli_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
|
|
unsigned int cfg_addr = get_scr_cfg_addr(ap, scr);
|
|
|
|
pci_write_config_dword(pdev, cfg_addr, val);
|
|
}
|
|
|
|
static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg)
|
|
{
|
|
if (sc_reg > SCR_CONTROL)
|
|
return 0xffffffffU;
|
|
|
|
return uli_scr_cfg_read(ap, sc_reg);
|
|
}
|
|
|
|
static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
|
|
{
|
|
if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
|
|
return;
|
|
|
|
uli_scr_cfg_write(ap, sc_reg, val);
|
|
}
|
|
|
|
/* move to PCI layer, integrate w/ MSI stuff */
|
|
static void pci_enable_intx(struct pci_dev *pdev)
|
|
{
|
|
u16 pci_command;
|
|
|
|
pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
|
|
if (pci_command & PCI_COMMAND_INTX_DISABLE) {
|
|
pci_command &= ~PCI_COMMAND_INTX_DISABLE;
|
|
pci_write_config_word(pdev, PCI_COMMAND, pci_command);
|
|
}
|
|
}
|
|
|
|
static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
|
|
{
|
|
struct ata_probe_ent *probe_ent;
|
|
struct ata_port_info *ppi;
|
|
int rc;
|
|
unsigned int board_idx = (unsigned int) ent->driver_data;
|
|
int pci_dev_busy = 0;
|
|
|
|
rc = pci_enable_device(pdev);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = pci_request_regions(pdev, DRV_NAME);
|
|
if (rc) {
|
|
pci_dev_busy = 1;
|
|
goto err_out;
|
|
}
|
|
|
|
rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
|
|
if (rc)
|
|
goto err_out_regions;
|
|
rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
|
|
if (rc)
|
|
goto err_out_regions;
|
|
|
|
ppi = &uli_port_info;
|
|
probe_ent = ata_pci_init_native_mode(pdev, &ppi);
|
|
if (!probe_ent) {
|
|
rc = -ENOMEM;
|
|
goto err_out_regions;
|
|
}
|
|
|
|
switch (board_idx) {
|
|
case uli_5287:
|
|
probe_ent->port[0].scr_addr = ULI5287_BASE;
|
|
probe_ent->port[1].scr_addr = ULI5287_BASE + ULI5287_OFFS;
|
|
probe_ent->n_ports = 4;
|
|
|
|
probe_ent->port[2].cmd_addr = pci_resource_start(pdev, 0) + 8;
|
|
probe_ent->port[2].altstatus_addr =
|
|
probe_ent->port[2].ctl_addr =
|
|
(pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4;
|
|
probe_ent->port[2].bmdma_addr = pci_resource_start(pdev, 4) + 16;
|
|
probe_ent->port[2].scr_addr = ULI5287_BASE + ULI5287_OFFS*4;
|
|
|
|
probe_ent->port[3].cmd_addr = pci_resource_start(pdev, 2) + 8;
|
|
probe_ent->port[3].altstatus_addr =
|
|
probe_ent->port[3].ctl_addr =
|
|
(pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4;
|
|
probe_ent->port[3].bmdma_addr = pci_resource_start(pdev, 4) + 24;
|
|
probe_ent->port[3].scr_addr = ULI5287_BASE + ULI5287_OFFS*5;
|
|
|
|
ata_std_ports(&probe_ent->port[2]);
|
|
ata_std_ports(&probe_ent->port[3]);
|
|
break;
|
|
|
|
case uli_5289:
|
|
probe_ent->port[0].scr_addr = ULI5287_BASE;
|
|
probe_ent->port[1].scr_addr = ULI5287_BASE + ULI5287_OFFS;
|
|
break;
|
|
|
|
case uli_5281:
|
|
probe_ent->port[0].scr_addr = ULI5281_BASE;
|
|
probe_ent->port[1].scr_addr = ULI5281_BASE + ULI5281_OFFS;
|
|
break;
|
|
|
|
default:
|
|
BUG();
|
|
break;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
pci_enable_intx(pdev);
|
|
|
|
/* FIXME: check ata_device_add return value */
|
|
ata_device_add(probe_ent);
|
|
kfree(probe_ent);
|
|
|
|
return 0;
|
|
|
|
err_out_regions:
|
|
pci_release_regions(pdev);
|
|
|
|
err_out:
|
|
if (!pci_dev_busy)
|
|
pci_disable_device(pdev);
|
|
return rc;
|
|
|
|
}
|
|
|
|
static int __init uli_init(void)
|
|
{
|
|
return pci_module_init(&uli_pci_driver);
|
|
}
|
|
|
|
static void __exit uli_exit(void)
|
|
{
|
|
pci_unregister_driver(&uli_pci_driver);
|
|
}
|
|
|
|
|
|
module_init(uli_init);
|
|
module_exit(uli_exit);
|