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>
36 #include <scsi/scsi_host.h>
37 #include <linux/libata.h>
39 #define DRV_NAME "sata_uli"
40 #define DRV_VERSION "0.5"
47 /* PCI configuration registers */
48 ULI5287_BASE = 0x90, /* sata0 phy SCR registers */
49 ULI5287_OFFS = 0x10, /* offset from sata0->sata1 phy regs */
50 ULI5281_BASE = 0x60, /* sata0 phy SCR registers */
51 ULI5281_OFFS = 0x60, /* offset from sata0->sata1 phy regs */
54 static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
55 static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg);
56 static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
58 static struct pci_device_id uli_pci_tbl[] = {
59 { PCI_VENDOR_ID_AL, 0x5289, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5289 },
60 { PCI_VENDOR_ID_AL, 0x5287, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5287 },
61 { PCI_VENDOR_ID_AL, 0x5281, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5281 },
62 { } /* terminate list */
66 static struct pci_driver uli_pci_driver = {
68 .id_table = uli_pci_tbl,
69 .probe = uli_init_one,
70 .remove = ata_pci_remove_one,
73 static Scsi_Host_Template uli_sht = {
74 .module = THIS_MODULE,
76 .ioctl = ata_scsi_ioctl,
77 .queuecommand = ata_scsi_queuecmd,
78 .eh_strategy_handler = ata_scsi_error,
79 .can_queue = ATA_DEF_QUEUE,
80 .this_id = ATA_SHT_THIS_ID,
81 .sg_tablesize = LIBATA_MAX_PRD,
82 .max_sectors = ATA_MAX_SECTORS,
83 .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
84 .emulated = ATA_SHT_EMULATED,
85 .use_clustering = ATA_SHT_USE_CLUSTERING,
86 .proc_name = DRV_NAME,
87 .dma_boundary = ATA_DMA_BOUNDARY,
88 .slave_configure = ata_scsi_slave_config,
89 .bios_param = ata_std_bios_param,
93 static struct ata_port_operations uli_ops = {
94 .port_disable = ata_port_disable,
96 .tf_load = ata_tf_load,
97 .tf_read = ata_tf_read,
98 .check_status = ata_check_status,
99 .exec_command = ata_exec_command,
100 .dev_select = ata_std_dev_select,
102 .phy_reset = sata_phy_reset,
104 .bmdma_setup = ata_bmdma_setup,
105 .bmdma_start = ata_bmdma_start,
106 .bmdma_stop = ata_bmdma_stop,
107 .bmdma_status = ata_bmdma_status,
108 .qc_prep = ata_qc_prep,
109 .qc_issue = ata_qc_issue_prot,
111 .eng_timeout = ata_eng_timeout,
113 .irq_handler = ata_interrupt,
114 .irq_clear = ata_bmdma_irq_clear,
116 .scr_read = uli_scr_read,
117 .scr_write = uli_scr_write,
119 .port_start = ata_port_start,
120 .port_stop = ata_port_stop,
121 .host_stop = ata_host_stop,
124 static struct ata_port_info uli_port_info = {
126 .host_flags = ATA_FLAG_SATA | ATA_FLAG_SATA_RESET |
128 .pio_mask = 0x03, //support pio mode 4 (FIXME)
129 .udma_mask = 0x7f, //support udma mode 6
130 .port_ops = &uli_ops,
134 MODULE_AUTHOR("Peer Chen");
135 MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
136 MODULE_LICENSE("GPL");
137 MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
138 MODULE_VERSION(DRV_VERSION);
140 static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
142 return ap->ioaddr.scr_addr + (4 * sc_reg);
145 static u32 uli_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
147 struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
148 unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
151 pci_read_config_dword(pdev, cfg_addr, &val);
155 static void uli_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
157 struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
158 unsigned int cfg_addr = get_scr_cfg_addr(ap, scr);
160 pci_write_config_dword(pdev, cfg_addr, val);
163 static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg)
165 if (sc_reg > SCR_CONTROL)
168 return uli_scr_cfg_read(ap, sc_reg);
171 static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
173 if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
176 uli_scr_cfg_write(ap, sc_reg, val);
179 /* move to PCI layer, integrate w/ MSI stuff */
180 static void pci_enable_intx(struct pci_dev *pdev)
184 pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
185 if (pci_command & PCI_COMMAND_INTX_DISABLE) {
186 pci_command &= ~PCI_COMMAND_INTX_DISABLE;
187 pci_write_config_word(pdev, PCI_COMMAND, pci_command);
191 static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
193 struct ata_probe_ent *probe_ent;
194 struct ata_port_info *ppi;
196 unsigned int board_idx = (unsigned int) ent->driver_data;
197 int pci_dev_busy = 0;
199 rc = pci_enable_device(pdev);
203 rc = pci_request_regions(pdev, DRV_NAME);
209 rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
211 goto err_out_regions;
212 rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
214 goto err_out_regions;
216 ppi = &uli_port_info;
217 probe_ent = ata_pci_init_native_mode(pdev, &ppi);
220 goto err_out_regions;
225 probe_ent->port[0].scr_addr = ULI5287_BASE;
226 probe_ent->port[1].scr_addr = ULI5287_BASE + ULI5287_OFFS;
227 probe_ent->n_ports = 4;
229 probe_ent->port[2].cmd_addr = pci_resource_start(pdev, 0) + 8;
230 probe_ent->port[2].altstatus_addr =
231 probe_ent->port[2].ctl_addr =
232 (pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4;
233 probe_ent->port[2].bmdma_addr = pci_resource_start(pdev, 4) + 16;
234 probe_ent->port[2].scr_addr = ULI5287_BASE + ULI5287_OFFS*4;
236 probe_ent->port[3].cmd_addr = pci_resource_start(pdev, 2) + 8;
237 probe_ent->port[3].altstatus_addr =
238 probe_ent->port[3].ctl_addr =
239 (pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4;
240 probe_ent->port[3].bmdma_addr = pci_resource_start(pdev, 4) + 24;
241 probe_ent->port[3].scr_addr = ULI5287_BASE + ULI5287_OFFS*5;
243 ata_std_ports(&probe_ent->port[2]);
244 ata_std_ports(&probe_ent->port[3]);
248 probe_ent->port[0].scr_addr = ULI5287_BASE;
249 probe_ent->port[1].scr_addr = ULI5287_BASE + ULI5287_OFFS;
253 probe_ent->port[0].scr_addr = ULI5281_BASE;
254 probe_ent->port[1].scr_addr = ULI5281_BASE + ULI5281_OFFS;
262 pci_set_master(pdev);
263 pci_enable_intx(pdev);
265 /* FIXME: check ata_device_add return value */
266 ata_device_add(probe_ent);
272 pci_release_regions(pdev);
276 pci_disable_device(pdev);
281 static int __init uli_init(void)
283 return pci_module_init(&uli_pci_driver);
286 static void __exit uli_exit(void)
288 pci_unregister_driver(&uli_pci_driver);
292 module_init(uli_init);
293 module_exit(uli_exit);