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authorJeff Garzik <jeff@garzik.org>2006-08-10 07:31:37 -0400
committerJeff Garzik <jeff@garzik.org>2006-08-10 07:31:37 -0400
commitc6fd280766a050b13360d7c2d59a3d6bd3a27d9a (patch)
treefdbeab639bc3dec29267bbf4b32cff7c8dd03593 /drivers/ata/sata_uli.c
parent79ed35a9f139ad2b2653dfdd5f45a8f1453e2cbb (diff)
Move libata to drivers/ata.
Diffstat (limited to 'drivers/ata/sata_uli.c')
-rw-r--r--drivers/ata/sata_uli.c300
1 files changed, 300 insertions, 0 deletions
diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c
new file mode 100644
index 000000000000..654aae2b25c5
--- /dev/null
+++ b/drivers/ata/sata_uli.c
@@ -0,0 +1,300 @@
1/*
2 * sata_uli.c - ULi Electronics SATA
3 *
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.
24 *
25 */
26
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 "1.0"
40
41enum {
42 uli_5289 = 0,
43 uli_5287 = 1,
44 uli_5281 = 2,
45
46 uli_max_ports = 4,
47
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
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 u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg);
61static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
62
63static const struct pci_device_id uli_pci_tbl[] = {
64 { PCI_VENDOR_ID_AL, 0x5289, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5289 },
65 { PCI_VENDOR_ID_AL, 0x5287, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5287 },
66 { PCI_VENDOR_ID_AL, 0x5281, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5281 },
67 { } /* terminate list */
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 .module = THIS_MODULE,
80 .name = DRV_NAME,
81 .ioctl = ata_scsi_ioctl,
82 .queuecommand = ata_scsi_queuecmd,
83 .can_queue = ATA_DEF_QUEUE,
84 .this_id = ATA_SHT_THIS_ID,
85 .sg_tablesize = LIBATA_MAX_PRD,
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,
92 .slave_destroy = ata_scsi_slave_destroy,
93 .bios_param = ata_std_bios_param,
94};
95
96static const struct ata_port_operations uli_ops = {
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
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,
111 .data_xfer = ata_pio_data_xfer,
112
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,
117
118 .irq_handler = ata_interrupt,
119 .irq_clear = ata_bmdma_irq_clear,
120
121 .scr_read = uli_scr_read,
122 .scr_write = uli_scr_write,
123
124 .port_start = ata_port_start,
125 .port_stop = ata_port_stop,
126 .host_stop = ata_host_stop,
127};
128
129static struct ata_port_info uli_port_info = {
130 .sht = &uli_sht,
131 .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY,
132 .pio_mask = 0x1f, /* pio0-4 */
133 .udma_mask = 0x7f, /* udma0-6 */
134 .port_ops = &uli_ops,
135};
136
137
138MODULE_AUTHOR("Peer Chen");
139MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
140MODULE_LICENSE("GPL");
141MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
142MODULE_VERSION(DRV_VERSION);
143
144static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
145{
146 struct uli_priv *hpriv = ap->host_set->private_data;
147 return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg);
148}
149
150static u32 uli_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
151{
152 struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
153 unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
154 u32 val;
155
156 pci_read_config_dword(pdev, cfg_addr, &val);
157 return val;
158}
159
160static void uli_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
161{
162 struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
163 unsigned int cfg_addr = get_scr_cfg_addr(ap, scr);
164
165 pci_write_config_dword(pdev, cfg_addr, val);
166}
167
168static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg)
169{
170 if (sc_reg > SCR_CONTROL)
171 return 0xffffffffU;
172
173 return uli_scr_cfg_read(ap, sc_reg);
174}
175
176static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
177{
178 if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
179 return;
180
181 uli_scr_cfg_write(ap, sc_reg, val);
182}
183
184static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
185{
186 static int printed_version;
187 struct ata_probe_ent *probe_ent;
188 struct ata_port_info *ppi;
189 int rc;
190 unsigned int board_idx = (unsigned int) ent->driver_data;
191 int pci_dev_busy = 0;
192 struct uli_priv *hpriv;
193
194 if (!printed_version++)
195 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
196
197 rc = pci_enable_device(pdev);
198 if (rc)
199 return rc;
200
201 rc = pci_request_regions(pdev, DRV_NAME);
202 if (rc) {
203 pci_dev_busy = 1;
204 goto err_out;
205 }
206
207 rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
208 if (rc)
209 goto err_out_regions;
210 rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
211 if (rc)
212 goto err_out_regions;
213
214 ppi = &uli_port_info;
215 probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY);
216 if (!probe_ent) {
217 rc = -ENOMEM;
218 goto err_out_regions;
219 }
220
221 hpriv = kzalloc(sizeof(*hpriv), GFP_KERNEL);
222 if (!hpriv) {
223 rc = -ENOMEM;
224 goto err_out_probe_ent;
225 }
226
227 probe_ent->private_data = hpriv;
228
229 switch (board_idx) {
230 case uli_5287:
231 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
232 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
233 probe_ent->n_ports = 4;
234
235 probe_ent->port[2].cmd_addr = pci_resource_start(pdev, 0) + 8;
236 probe_ent->port[2].altstatus_addr =
237 probe_ent->port[2].ctl_addr =
238 (pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4;
239 probe_ent->port[2].bmdma_addr = pci_resource_start(pdev, 4) + 16;
240 hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
241
242 probe_ent->port[3].cmd_addr = pci_resource_start(pdev, 2) + 8;
243 probe_ent->port[3].altstatus_addr =
244 probe_ent->port[3].ctl_addr =
245 (pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4;
246 probe_ent->port[3].bmdma_addr = pci_resource_start(pdev, 4) + 24;
247 hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
248
249 ata_std_ports(&probe_ent->port[2]);
250 ata_std_ports(&probe_ent->port[3]);
251 break;
252
253 case uli_5289:
254 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
255 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
256 break;
257
258 case uli_5281:
259 hpriv->scr_cfg_addr[0] = ULI5281_BASE;
260 hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS;
261 break;
262
263 default:
264 BUG();
265 break;
266 }
267
268 pci_set_master(pdev);
269 pci_intx(pdev, 1);
270
271 /* FIXME: check ata_device_add return value */
272 ata_device_add(probe_ent);
273 kfree(probe_ent);
274
275 return 0;
276
277err_out_probe_ent:
278 kfree(probe_ent);
279err_out_regions:
280 pci_release_regions(pdev);
281err_out:
282 if (!pci_dev_busy)
283 pci_disable_device(pdev);
284 return rc;
285
286}
287
288static int __init uli_init(void)
289{
290 return pci_register_driver(&uli_pci_driver);
291}
292
293static void __exit uli_exit(void)
294{
295 pci_unregister_driver(&uli_pci_driver);
296}
297
298
299module_init(uli_init);
300module_exit(uli_exit);