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27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/pci.h>
30#include <linux/init.h>
31#include <linux/blkdev.h>
32#include <linux/delay.h>
33#include <linux/interrupt.h>
34#include <linux/device.h>
35#include <scsi/scsi_host.h>
36#include <linux/libata.h>
37
38#define DRV_NAME "sata_uli"
39#define DRV_VERSION "1.3"
40
41enum {
42 uli_5289 = 0,
43 uli_5287 = 1,
44 uli_5281 = 2,
45
46 uli_max_ports = 4,
47
48
49 ULI5287_BASE = 0x90,
50 ULI5287_OFFS = 0x10,
51 ULI5281_BASE = 0x60,
52 ULI5281_OFFS = 0x60,
53};
54
55struct uli_priv {
56 unsigned int scr_cfg_addr[uli_max_ports];
57};
58
59static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
60static int uli_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
61static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
62
63static const struct pci_device_id uli_pci_tbl[] = {
64 { PCI_VDEVICE(AL, 0x5289), uli_5289 },
65 { PCI_VDEVICE(AL, 0x5287), uli_5287 },
66 { PCI_VDEVICE(AL, 0x5281), uli_5281 },
67
68 { }
69};
70
71static struct pci_driver uli_pci_driver = {
72 .name = DRV_NAME,
73 .id_table = uli_pci_tbl,
74 .probe = uli_init_one,
75 .remove = ata_pci_remove_one,
76};
77
78static struct scsi_host_template uli_sht = {
79 ATA_BMDMA_SHT(DRV_NAME),
80};
81
82static struct ata_port_operations uli_ops = {
83 .inherits = &ata_bmdma_port_ops,
84 .scr_read = uli_scr_read,
85 .scr_write = uli_scr_write,
86 .hardreset = ATA_OP_NULL,
87};
88
89static const struct ata_port_info uli_port_info = {
90 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
91 ATA_FLAG_IGN_SIMPLEX,
92 .pio_mask = ATA_PIO4,
93 .udma_mask = ATA_UDMA6,
94 .port_ops = &uli_ops,
95};
96
97
98MODULE_AUTHOR("Peer Chen");
99MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
100MODULE_LICENSE("GPL");
101MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
102MODULE_VERSION(DRV_VERSION);
103
104static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
105{
106 struct uli_priv *hpriv = ap->host->private_data;
107 return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg);
108}
109
110static u32 uli_scr_cfg_read(struct ata_link *link, unsigned int sc_reg)
111{
112 struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
113 unsigned int cfg_addr = get_scr_cfg_addr(link->ap, sc_reg);
114 u32 val;
115
116 pci_read_config_dword(pdev, cfg_addr, &val);
117 return val;
118}
119
120static void uli_scr_cfg_write(struct ata_link *link, unsigned int scr, u32 val)
121{
122 struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
123 unsigned int cfg_addr = get_scr_cfg_addr(link->ap, scr);
124
125 pci_write_config_dword(pdev, cfg_addr, val);
126}
127
128static int uli_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val)
129{
130 if (sc_reg > SCR_CONTROL)
131 return -EINVAL;
132
133 *val = uli_scr_cfg_read(link, sc_reg);
134 return 0;
135}
136
137static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)
138{
139 if (sc_reg > SCR_CONTROL)
140 return -EINVAL;
141
142 uli_scr_cfg_write(link, sc_reg, val);
143 return 0;
144}
145
146static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
147{
148 static int printed_version;
149 const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
150 unsigned int board_idx = (unsigned int) ent->driver_data;
151 struct ata_host *host;
152 struct uli_priv *hpriv;
153 void __iomem * const *iomap;
154 struct ata_ioports *ioaddr;
155 int n_ports, rc;
156
157 if (!printed_version++)
158 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
159
160 rc = pcim_enable_device(pdev);
161 if (rc)
162 return rc;
163
164 n_ports = 2;
165 if (board_idx == uli_5287)
166 n_ports = 4;
167
168
169 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
170 if (!host)
171 return -ENOMEM;
172
173 hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
174 if (!hpriv)
175 return -ENOMEM;
176 host->private_data = hpriv;
177
178
179 rc = ata_pci_sff_init_host(host);
180 if (rc)
181 return rc;
182
183 rc = ata_pci_bmdma_init(host);
184 if (rc)
185 return rc;
186
187 iomap = host->iomap;
188
189 switch (board_idx) {
190 case uli_5287:
191
192
193
194 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
195 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
196
197 ioaddr = &host->ports[2]->ioaddr;
198 ioaddr->cmd_addr = iomap[0] + 8;
199 ioaddr->altstatus_addr =
200 ioaddr->ctl_addr = (void __iomem *)
201 ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4;
202 ioaddr->bmdma_addr = iomap[4] + 16;
203 hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
204 ata_sff_std_ports(ioaddr);
205
206 ata_port_desc(host->ports[2],
207 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
208 (unsigned long long)pci_resource_start(pdev, 0) + 8,
209 ((unsigned long long)pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4,
210 (unsigned long long)pci_resource_start(pdev, 4) + 16);
211
212 ioaddr = &host->ports[3]->ioaddr;
213 ioaddr->cmd_addr = iomap[2] + 8;
214 ioaddr->altstatus_addr =
215 ioaddr->ctl_addr = (void __iomem *)
216 ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4;
217 ioaddr->bmdma_addr = iomap[4] + 24;
218 hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
219 ata_sff_std_ports(ioaddr);
220
221 ata_port_desc(host->ports[2],
222 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
223 (unsigned long long)pci_resource_start(pdev, 2) + 9,
224 ((unsigned long long)pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4,
225 (unsigned long long)pci_resource_start(pdev, 4) + 24);
226
227 break;
228
229 case uli_5289:
230 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
231 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
232 break;
233
234 case uli_5281:
235 hpriv->scr_cfg_addr[0] = ULI5281_BASE;
236 hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS;
237 break;
238
239 default:
240 BUG();
241 break;
242 }
243
244 pci_set_master(pdev);
245 pci_intx(pdev, 1);
246 return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
247 IRQF_SHARED, &uli_sht);
248}
249
250static int __init uli_init(void)
251{
252 return pci_register_driver(&uli_pci_driver);
253}
254
255static void __exit uli_exit(void)
256{
257 pci_unregister_driver(&uli_pci_driver);
258}
259
260
261module_init(uli_init);
262module_exit(uli_exit);
263