2 * sata_uli.c - ULi Electronics SATA
4 * The contents of this file are subject to the Open
5 * Software License version 1.1 that can be found at
6 * http://www.opensource.org/licenses/osl-1.1.txt and is included herein
9 * Alternatively, the contents of this file may be used under the terms
10 * of the GNU General Public License version 2 (the "GPL") as distributed
11 * in the kernel source COPYING file, in which case the provisions of
12 * the GPL are applicable instead of the above. If you wish to allow
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15 * the OSL, indicate your decision by deleting the provisions above and
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17 * If you do not delete the provisions above, a recipient may use your
18 * version of this file under either the OSL or the GPL.
22 #include <linux/config.h>
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/pci.h>
26 #include <linux/init.h>
27 #include <linux/blkdev.h>
28 #include <linux/delay.h>
29 #include <linux/interrupt.h>
31 #include <scsi/scsi_host.h>
32 #include <linux/libata.h>
34 #define DRV_NAME "sata_uli"
35 #define DRV_VERSION "0.2"
41 /* PCI configuration registers */
42 ULI_SCR_BASE = 0x90, /* sata0 phy SCR registers */
43 ULI_SATA1_OFS = 0x10, /* offset from sata0->sata1 phy regs */
47 static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
48 static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg);
49 static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
51 static struct pci_device_id uli_pci_tbl[] = {
52 { PCI_VENDOR_ID_AL, 0x5289, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5289 },
53 { PCI_VENDOR_ID_AL, 0x5287, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5287 },
54 { } /* terminate list */
58 static struct pci_driver uli_pci_driver = {
60 .id_table = uli_pci_tbl,
61 .probe = uli_init_one,
62 .remove = ata_pci_remove_one,
65 static Scsi_Host_Template uli_sht = {
66 .module = THIS_MODULE,
68 .ioctl = ata_scsi_ioctl,
69 .queuecommand = ata_scsi_queuecmd,
70 .eh_strategy_handler = ata_scsi_error,
71 .can_queue = ATA_DEF_QUEUE,
72 .this_id = ATA_SHT_THIS_ID,
73 .sg_tablesize = LIBATA_MAX_PRD,
74 .max_sectors = ATA_MAX_SECTORS,
75 .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
76 .emulated = ATA_SHT_EMULATED,
77 .use_clustering = ATA_SHT_USE_CLUSTERING,
78 .proc_name = DRV_NAME,
79 .dma_boundary = ATA_DMA_BOUNDARY,
80 .slave_configure = ata_scsi_slave_config,
81 .bios_param = ata_std_bios_param,
84 static struct ata_port_operations uli_ops = {
85 .port_disable = ata_port_disable,
87 .tf_load = ata_tf_load,
88 .tf_read = ata_tf_read,
89 .check_status = ata_check_status,
90 .exec_command = ata_exec_command,
91 .dev_select = ata_std_dev_select,
93 .phy_reset = sata_phy_reset,
95 .bmdma_setup = ata_bmdma_setup,
96 .bmdma_start = ata_bmdma_start,
97 .qc_prep = ata_qc_prep,
98 .qc_issue = ata_qc_issue_prot,
100 .eng_timeout = ata_eng_timeout,
102 .irq_handler = ata_interrupt,
103 .irq_clear = ata_bmdma_irq_clear,
105 .scr_read = uli_scr_read,
106 .scr_write = uli_scr_write,
108 .port_start = ata_port_start,
109 .port_stop = ata_port_stop,
112 static struct ata_port_info uli_port_info = {
114 .host_flags = ATA_FLAG_SATA | ATA_FLAG_SATA_RESET |
116 .pio_mask = 0x03, //support pio mode 4 (FIXME)
117 .udma_mask = 0x7f, //support udma mode 6
118 .port_ops = &uli_ops,
122 MODULE_AUTHOR("Peer Chen");
123 MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
124 MODULE_LICENSE("GPL");
125 MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
126 MODULE_VERSION(DRV_VERSION);
128 static unsigned int get_scr_cfg_addr(unsigned int port_no, unsigned int sc_reg)
130 unsigned int addr = ULI_SCR_BASE + (4 * sc_reg);
136 addr += ULI_SATA1_OFS;
139 addr += ULI_SATA1_OFS*4;
142 addr += ULI_SATA1_OFS*5;
151 static u32 uli_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
153 struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
154 unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, sc_reg);
157 pci_read_config_dword(pdev, cfg_addr, &val);
161 static void uli_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
163 struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
164 unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, scr);
166 pci_write_config_dword(pdev, cfg_addr, val);
169 static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg)
171 if (sc_reg > SCR_CONTROL)
174 return uli_scr_cfg_read(ap, sc_reg);
177 static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
179 if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
182 uli_scr_cfg_write(ap, sc_reg, val);
185 /* move to PCI layer, integrate w/ MSI stuff */
186 static void pci_enable_intx(struct pci_dev *pdev)
190 pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
191 if (pci_command & PCI_COMMAND_INTX_DISABLE) {
192 pci_command &= ~PCI_COMMAND_INTX_DISABLE;
193 pci_write_config_word(pdev, PCI_COMMAND, pci_command);
197 static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
199 struct ata_probe_ent *probe_ent;
200 struct ata_port_info *ppi;
202 unsigned int board_idx = (unsigned int) ent->driver_data;
204 rc = pci_enable_device(pdev);
208 rc = pci_request_regions(pdev, DRV_NAME);
212 rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
214 goto err_out_regions;
215 rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
217 goto err_out_regions;
219 ppi = &uli_port_info;
220 probe_ent = ata_pci_init_native_mode(pdev, &ppi);
223 goto err_out_regions;
228 probe_ent->n_ports = 4;
230 probe_ent->port[2].cmd_addr = pci_resource_start(pdev, 0) + 8;
231 probe_ent->port[2].altstatus_addr =
232 probe_ent->port[2].ctl_addr =
233 (pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4;
234 probe_ent->port[2].bmdma_addr = pci_resource_start(pdev, 4) + 16;
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;
242 ata_std_ports(&probe_ent->port[2]);
243 ata_std_ports(&probe_ent->port[3]);
247 /* do nothing; ata_pci_init_native_mode did it all */
255 pci_set_master(pdev);
256 pci_enable_intx(pdev);
258 /* FIXME: check ata_device_add return value */
259 ata_device_add(probe_ent);
265 pci_release_regions(pdev);
268 pci_disable_device(pdev);
273 static int __init uli_init(void)
275 return pci_module_init(&uli_pci_driver);
278 static void __exit uli_exit(void)
280 pci_unregister_driver(&uli_pci_driver);
284 module_init(uli_init);
285 module_exit(uli_exit);