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1da177e4 LT |
1 | /* |
2 | * sata_uli.c - ULi Electronics SATA | |
3 | * | |
af36d7f0 JG |
4 | * |
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) | |
8 | * any later version. | |
9 | * | |
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. | |
14 | * | |
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. | |
18 | * | |
19 | * | |
20 | * libata documentation is available via 'make {ps|pdf}docs', | |
21 | * as Documentation/DocBook/libata.* | |
22 | * | |
23 | * Hardware documentation available under NDA. | |
1da177e4 LT |
24 | * |
25 | */ | |
26 | ||
1da177e4 LT |
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> | |
a9524a76 | 34 | #include <linux/device.h> |
1da177e4 LT |
35 | #include <scsi/scsi_host.h> |
36 | #include <linux/libata.h> | |
37 | ||
38 | #define DRV_NAME "sata_uli" | |
8bc3fc47 | 39 | #define DRV_VERSION "1.2" |
1da177e4 LT |
40 | |
41 | enum { | |
42 | uli_5289 = 0, | |
43 | uli_5287 = 1, | |
44 | uli_5281 = 2, | |
45 | ||
50106c5a JG |
46 | uli_max_ports = 4, |
47 | ||
1da177e4 LT |
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 */ | |
53 | }; | |
54 | ||
50106c5a JG |
55 | struct uli_priv { |
56 | unsigned int scr_cfg_addr[uli_max_ports]; | |
57 | }; | |
58 | ||
1da177e4 LT |
59 | static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); |
60 | static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg); | |
61 | static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); | |
62 | ||
3b7d697d | 63 | static const struct pci_device_id uli_pci_tbl[] = { |
54bb3a94 JG |
64 | { PCI_VDEVICE(AL, 0x5289), uli_5289 }, |
65 | { PCI_VDEVICE(AL, 0x5287), uli_5287 }, | |
66 | { PCI_VDEVICE(AL, 0x5281), uli_5281 }, | |
67 | ||
1da177e4 LT |
68 | { } /* terminate list */ |
69 | }; | |
70 | ||
1da177e4 LT |
71 | static 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 | ||
193515d5 | 78 | static struct scsi_host_template uli_sht = { |
1da177e4 LT |
79 | .module = THIS_MODULE, |
80 | .name = DRV_NAME, | |
81 | .ioctl = ata_scsi_ioctl, | |
82 | .queuecommand = ata_scsi_queuecmd, | |
1da177e4 LT |
83 | .can_queue = ATA_DEF_QUEUE, |
84 | .this_id = ATA_SHT_THIS_ID, | |
85 | .sg_tablesize = LIBATA_MAX_PRD, | |
1da177e4 LT |
86 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
87 | .emulated = ATA_SHT_EMULATED, | |
88 | .use_clustering = ATA_SHT_USE_CLUSTERING, | |
89 | .proc_name = DRV_NAME, | |
90 | .dma_boundary = ATA_DMA_BOUNDARY, | |
91 | .slave_configure = ata_scsi_slave_config, | |
ccf68c34 | 92 | .slave_destroy = ata_scsi_slave_destroy, |
1da177e4 | 93 | .bios_param = ata_std_bios_param, |
1da177e4 LT |
94 | }; |
95 | ||
057ace5e | 96 | static const struct ata_port_operations uli_ops = { |
1da177e4 LT |
97 | .port_disable = ata_port_disable, |
98 | ||
99 | .tf_load = ata_tf_load, | |
100 | .tf_read = ata_tf_read, | |
101 | .check_status = ata_check_status, | |
102 | .exec_command = ata_exec_command, | |
103 | .dev_select = ata_std_dev_select, | |
104 | ||
1da177e4 LT |
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, | |
0d5ff566 | 111 | .data_xfer = ata_data_xfer, |
1da177e4 | 112 | |
d7a80dad TH |
113 | .freeze = ata_bmdma_freeze, |
114 | .thaw = ata_bmdma_thaw, | |
115 | .error_handler = ata_bmdma_error_handler, | |
116 | .post_internal_cmd = ata_bmdma_post_internal_cmd, | |
1da177e4 | 117 | |
1da177e4 | 118 | .irq_clear = ata_bmdma_irq_clear, |
246ce3b6 AI |
119 | .irq_on = ata_irq_on, |
120 | .irq_ack = ata_irq_ack, | |
1da177e4 LT |
121 | |
122 | .scr_read = uli_scr_read, | |
123 | .scr_write = uli_scr_write, | |
124 | ||
125 | .port_start = ata_port_start, | |
1da177e4 LT |
126 | }; |
127 | ||
1626aeb8 | 128 | static const struct ata_port_info uli_port_info = { |
b2a8bbe6 TH |
129 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | |
130 | ATA_FLAG_IGN_SIMPLEX, | |
7da79312 | 131 | .pio_mask = 0x1f, /* pio0-4 */ |
bf6263a8 | 132 | .udma_mask = ATA_UDMA6, |
1da177e4 LT |
133 | .port_ops = &uli_ops, |
134 | }; | |
135 | ||
136 | ||
137 | MODULE_AUTHOR("Peer Chen"); | |
138 | MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller"); | |
139 | MODULE_LICENSE("GPL"); | |
140 | MODULE_DEVICE_TABLE(pci, uli_pci_tbl); | |
141 | MODULE_VERSION(DRV_VERSION); | |
142 | ||
143 | static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg) | |
144 | { | |
cca3974e | 145 | struct uli_priv *hpriv = ap->host->private_data; |
50106c5a | 146 | return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg); |
1da177e4 LT |
147 | } |
148 | ||
149 | static u32 uli_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg) | |
150 | { | |
cca3974e | 151 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
1da177e4 LT |
152 | unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg); |
153 | u32 val; | |
154 | ||
155 | pci_read_config_dword(pdev, cfg_addr, &val); | |
156 | return val; | |
157 | } | |
158 | ||
159 | static void uli_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val) | |
160 | { | |
cca3974e | 161 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
1da177e4 LT |
162 | unsigned int cfg_addr = get_scr_cfg_addr(ap, scr); |
163 | ||
164 | pci_write_config_dword(pdev, cfg_addr, val); | |
165 | } | |
166 | ||
167 | static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg) | |
168 | { | |
169 | if (sc_reg > SCR_CONTROL) | |
170 | return 0xffffffffU; | |
171 | ||
172 | return uli_scr_cfg_read(ap, sc_reg); | |
173 | } | |
174 | ||
175 | static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) | |
176 | { | |
177 | if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0 | |
178 | return; | |
179 | ||
180 | uli_scr_cfg_write(ap, sc_reg, val); | |
181 | } | |
182 | ||
1da177e4 LT |
183 | static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
184 | { | |
a9524a76 | 185 | static int printed_version; |
9a829ccf | 186 | const struct ata_port_info *ppi[] = { &uli_port_info, NULL }; |
1da177e4 | 187 | unsigned int board_idx = (unsigned int) ent->driver_data; |
9a829ccf | 188 | struct ata_host *host; |
50106c5a | 189 | struct uli_priv *hpriv; |
0d5ff566 | 190 | void __iomem * const *iomap; |
9a829ccf TH |
191 | struct ata_ioports *ioaddr; |
192 | int n_ports, rc; | |
1da177e4 | 193 | |
a9524a76 JG |
194 | if (!printed_version++) |
195 | dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n"); | |
196 | ||
24dc5f33 | 197 | rc = pcim_enable_device(pdev); |
1da177e4 LT |
198 | if (rc) |
199 | return rc; | |
200 | ||
9a829ccf TH |
201 | n_ports = 2; |
202 | if (board_idx == uli_5287) | |
203 | n_ports = 4; | |
1626aeb8 TH |
204 | |
205 | /* allocate the host */ | |
206 | host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); | |
207 | if (!host) | |
208 | return -ENOMEM; | |
1da177e4 | 209 | |
24dc5f33 TH |
210 | hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); |
211 | if (!hpriv) | |
212 | return -ENOMEM; | |
9a829ccf | 213 | host->private_data = hpriv; |
50106c5a | 214 | |
1626aeb8 | 215 | /* the first two ports are standard SFF */ |
d583bc18 | 216 | rc = ata_pci_init_sff_host(host); |
1626aeb8 TH |
217 | if (rc) |
218 | return rc; | |
219 | ||
220 | rc = ata_pci_init_bmdma(host); | |
221 | if (rc) | |
222 | return rc; | |
223 | ||
9a829ccf | 224 | iomap = host->iomap; |
0d5ff566 | 225 | |
1da177e4 LT |
226 | switch (board_idx) { |
227 | case uli_5287: | |
1626aeb8 TH |
228 | /* If there are four, the last two live right after |
229 | * the standard SFF ports. | |
230 | */ | |
50106c5a JG |
231 | hpriv->scr_cfg_addr[0] = ULI5287_BASE; |
232 | hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS; | |
1da177e4 | 233 | |
9a829ccf TH |
234 | ioaddr = &host->ports[2]->ioaddr; |
235 | ioaddr->cmd_addr = iomap[0] + 8; | |
236 | ioaddr->altstatus_addr = | |
237 | ioaddr->ctl_addr = (void __iomem *) | |
0d5ff566 | 238 | ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4; |
9a829ccf | 239 | ioaddr->bmdma_addr = iomap[4] + 16; |
50106c5a | 240 | hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4; |
9a829ccf | 241 | ata_std_ports(ioaddr); |
1da177e4 | 242 | |
9a829ccf TH |
243 | ioaddr = &host->ports[3]->ioaddr; |
244 | ioaddr->cmd_addr = iomap[2] + 8; | |
245 | ioaddr->altstatus_addr = | |
246 | ioaddr->ctl_addr = (void __iomem *) | |
0d5ff566 | 247 | ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4; |
9a829ccf | 248 | ioaddr->bmdma_addr = iomap[4] + 24; |
50106c5a | 249 | hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5; |
9a829ccf | 250 | ata_std_ports(ioaddr); |
1da177e4 LT |
251 | break; |
252 | ||
253 | case uli_5289: | |
50106c5a JG |
254 | hpriv->scr_cfg_addr[0] = ULI5287_BASE; |
255 | hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS; | |
1da177e4 LT |
256 | break; |
257 | ||
258 | case uli_5281: | |
50106c5a JG |
259 | hpriv->scr_cfg_addr[0] = ULI5281_BASE; |
260 | hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS; | |
1da177e4 LT |
261 | break; |
262 | ||
263 | default: | |
264 | BUG(); | |
265 | break; | |
266 | } | |
267 | ||
268 | pci_set_master(pdev); | |
a04ce0ff | 269 | pci_intx(pdev, 1); |
9a829ccf TH |
270 | return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED, |
271 | &uli_sht); | |
1da177e4 LT |
272 | } |
273 | ||
274 | static int __init uli_init(void) | |
275 | { | |
b7887196 | 276 | return pci_register_driver(&uli_pci_driver); |
1da177e4 LT |
277 | } |
278 | ||
279 | static void __exit uli_exit(void) | |
280 | { | |
281 | pci_unregister_driver(&uli_pci_driver); | |
282 | } | |
283 | ||
284 | ||
285 | module_init(uli_init); | |
286 | module_exit(uli_exit); |