2 * sata_uli.c - ULi Electronics SATA
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; see the file COPYING. If not, write to
17 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
20 * libata documentation is available via 'make {ps|pdf}docs',
21 * as Documentation/DocBook/libata.*
23 * Hardware documentation available under NDA.
27 #include <linux/config.h>
28 #include <linux/kernel.h>
29 #include <linux/module.h>
30 #include <linux/pci.h>
31 #include <linux/init.h>
32 #include <linux/blkdev.h>
33 #include <linux/delay.h>
34 #include <linux/interrupt.h>
35 #include <linux/device.h>
37 #include <scsi/scsi_host.h>
38 #include <linux/libata.h>
40 #define DRV_NAME "sata_uli"
41 #define DRV_VERSION "0.5"
48 /* PCI configuration registers */
49 ULI5287_BASE
= 0x90, /* sata0 phy SCR registers */
50 ULI5287_OFFS
= 0x10, /* offset from sata0->sata1 phy regs */
51 ULI5281_BASE
= 0x60, /* sata0 phy SCR registers */
52 ULI5281_OFFS
= 0x60, /* offset from sata0->sata1 phy regs */
55 static int uli_init_one (struct pci_dev
*pdev
, const struct pci_device_id
*ent
);
56 static u32
uli_scr_read (struct ata_port
*ap
, unsigned int sc_reg
);
57 static void uli_scr_write (struct ata_port
*ap
, unsigned int sc_reg
, u32 val
);
59 static struct pci_device_id uli_pci_tbl
[] = {
60 { PCI_VENDOR_ID_AL
, 0x5289, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, uli_5289
},
61 { PCI_VENDOR_ID_AL
, 0x5287, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, uli_5287
},
62 { PCI_VENDOR_ID_AL
, 0x5281, PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, uli_5281
},
63 { } /* terminate list */
67 static struct pci_driver uli_pci_driver
= {
69 .id_table
= uli_pci_tbl
,
70 .probe
= uli_init_one
,
71 .remove
= ata_pci_remove_one
,
74 static Scsi_Host_Template uli_sht
= {
75 .module
= THIS_MODULE
,
77 .ioctl
= ata_scsi_ioctl
,
78 .queuecommand
= ata_scsi_queuecmd
,
79 .eh_strategy_handler
= ata_scsi_error
,
80 .can_queue
= ATA_DEF_QUEUE
,
81 .this_id
= ATA_SHT_THIS_ID
,
82 .sg_tablesize
= LIBATA_MAX_PRD
,
83 .max_sectors
= ATA_MAX_SECTORS
,
84 .cmd_per_lun
= ATA_SHT_CMD_PER_LUN
,
85 .emulated
= ATA_SHT_EMULATED
,
86 .use_clustering
= ATA_SHT_USE_CLUSTERING
,
87 .proc_name
= DRV_NAME
,
88 .dma_boundary
= ATA_DMA_BOUNDARY
,
89 .slave_configure
= ata_scsi_slave_config
,
90 .bios_param
= ata_std_bios_param
,
94 static const struct ata_port_operations uli_ops
= {
95 .port_disable
= ata_port_disable
,
97 .tf_load
= ata_tf_load
,
98 .tf_read
= ata_tf_read
,
99 .check_status
= ata_check_status
,
100 .exec_command
= ata_exec_command
,
101 .dev_select
= ata_std_dev_select
,
103 .phy_reset
= sata_phy_reset
,
105 .bmdma_setup
= ata_bmdma_setup
,
106 .bmdma_start
= ata_bmdma_start
,
107 .bmdma_stop
= ata_bmdma_stop
,
108 .bmdma_status
= ata_bmdma_status
,
109 .qc_prep
= ata_qc_prep
,
110 .qc_issue
= ata_qc_issue_prot
,
112 .eng_timeout
= ata_eng_timeout
,
114 .irq_handler
= ata_interrupt
,
115 .irq_clear
= ata_bmdma_irq_clear
,
117 .scr_read
= uli_scr_read
,
118 .scr_write
= uli_scr_write
,
120 .port_start
= ata_port_start
,
121 .port_stop
= ata_port_stop
,
122 .host_stop
= ata_host_stop
,
125 static struct ata_port_info uli_port_info
= {
127 .host_flags
= ATA_FLAG_SATA
| ATA_FLAG_SATA_RESET
|
129 .pio_mask
= 0x1f, /* pio0-4 */
130 .udma_mask
= 0x7f, /* udma0-6 */
131 .port_ops
= &uli_ops
,
135 MODULE_AUTHOR("Peer Chen");
136 MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
137 MODULE_LICENSE("GPL");
138 MODULE_DEVICE_TABLE(pci
, uli_pci_tbl
);
139 MODULE_VERSION(DRV_VERSION
);
141 static unsigned int get_scr_cfg_addr(struct ata_port
*ap
, unsigned int sc_reg
)
143 return ap
->ioaddr
.scr_addr
+ (4 * sc_reg
);
146 static u32
uli_scr_cfg_read (struct ata_port
*ap
, unsigned int sc_reg
)
148 struct pci_dev
*pdev
= to_pci_dev(ap
->host_set
->dev
);
149 unsigned int cfg_addr
= get_scr_cfg_addr(ap
, sc_reg
);
152 pci_read_config_dword(pdev
, cfg_addr
, &val
);
156 static void uli_scr_cfg_write (struct ata_port
*ap
, unsigned int scr
, u32 val
)
158 struct pci_dev
*pdev
= to_pci_dev(ap
->host_set
->dev
);
159 unsigned int cfg_addr
= get_scr_cfg_addr(ap
, scr
);
161 pci_write_config_dword(pdev
, cfg_addr
, val
);
164 static u32
uli_scr_read (struct ata_port
*ap
, unsigned int sc_reg
)
166 if (sc_reg
> SCR_CONTROL
)
169 return uli_scr_cfg_read(ap
, sc_reg
);
172 static void uli_scr_write (struct ata_port
*ap
, unsigned int sc_reg
, u32 val
)
174 if (sc_reg
> SCR_CONTROL
) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
177 uli_scr_cfg_write(ap
, sc_reg
, val
);
180 static int uli_init_one (struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
182 static int printed_version
;
183 struct ata_probe_ent
*probe_ent
;
184 struct ata_port_info
*ppi
;
186 unsigned int board_idx
= (unsigned int) ent
->driver_data
;
187 int pci_dev_busy
= 0;
189 if (!printed_version
++)
190 dev_printk(KERN_INFO
, &pdev
->dev
, "version " DRV_VERSION
"\n");
192 rc
= pci_enable_device(pdev
);
196 rc
= pci_request_regions(pdev
, DRV_NAME
);
202 rc
= pci_set_dma_mask(pdev
, ATA_DMA_MASK
);
204 goto err_out_regions
;
205 rc
= pci_set_consistent_dma_mask(pdev
, ATA_DMA_MASK
);
207 goto err_out_regions
;
209 ppi
= &uli_port_info
;
210 probe_ent
= ata_pci_init_native_mode(pdev
, &ppi
, ATA_PORT_PRIMARY
| ATA_PORT_SECONDARY
);
213 goto err_out_regions
;
218 probe_ent
->port
[0].scr_addr
= ULI5287_BASE
;
219 probe_ent
->port
[1].scr_addr
= ULI5287_BASE
+ ULI5287_OFFS
;
220 probe_ent
->n_ports
= 4;
222 probe_ent
->port
[2].cmd_addr
= pci_resource_start(pdev
, 0) + 8;
223 probe_ent
->port
[2].altstatus_addr
=
224 probe_ent
->port
[2].ctl_addr
=
225 (pci_resource_start(pdev
, 1) | ATA_PCI_CTL_OFS
) + 4;
226 probe_ent
->port
[2].bmdma_addr
= pci_resource_start(pdev
, 4) + 16;
227 probe_ent
->port
[2].scr_addr
= ULI5287_BASE
+ ULI5287_OFFS
*4;
229 probe_ent
->port
[3].cmd_addr
= pci_resource_start(pdev
, 2) + 8;
230 probe_ent
->port
[3].altstatus_addr
=
231 probe_ent
->port
[3].ctl_addr
=
232 (pci_resource_start(pdev
, 3) | ATA_PCI_CTL_OFS
) + 4;
233 probe_ent
->port
[3].bmdma_addr
= pci_resource_start(pdev
, 4) + 24;
234 probe_ent
->port
[3].scr_addr
= ULI5287_BASE
+ ULI5287_OFFS
*5;
236 ata_std_ports(&probe_ent
->port
[2]);
237 ata_std_ports(&probe_ent
->port
[3]);
241 probe_ent
->port
[0].scr_addr
= ULI5287_BASE
;
242 probe_ent
->port
[1].scr_addr
= ULI5287_BASE
+ ULI5287_OFFS
;
246 probe_ent
->port
[0].scr_addr
= ULI5281_BASE
;
247 probe_ent
->port
[1].scr_addr
= ULI5281_BASE
+ ULI5281_OFFS
;
255 pci_set_master(pdev
);
258 /* FIXME: check ata_device_add return value */
259 ata_device_add(probe_ent
);
265 pci_release_regions(pdev
);
269 pci_disable_device(pdev
);
274 static int __init
uli_init(void)
276 return pci_module_init(&uli_pci_driver
);
279 static void __exit
uli_exit(void)
281 pci_unregister_driver(&uli_pci_driver
);
285 module_init(uli_init
);
286 module_exit(uli_exit
);