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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * Copyright (C) 1996-2001 Linus Torvalds & author (see below)
3 */
4
5/*
6 * Version 0.03 Cleaned auto-tune, added probe
7 * Version 0.04 Added second channel tuning
8 * Version 0.05 Enhanced tuning ; added qd6500 support
9 * Version 0.06 Added dos driver's list
10 * Version 0.07 Second channel bug fix
11 *
12 * QDI QD6500/QD6580 EIDE controller fast support
13 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070014 * To activate controller support, use "ide0=qd65xx"
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 */
16
17/*
18 * Rewritten from the work of Colten Edwards <pje120@cs.usask.ca> by
19 * Samuel Thibault <samuel.thibault@fnac.net>
20 */
21
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include <linux/types.h>
24#include <linux/kernel.h>
25#include <linux/delay.h>
26#include <linux/timer.h>
27#include <linux/mm.h>
28#include <linux/ioport.h>
29#include <linux/blkdev.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include <linux/ide.h>
31#include <linux/init.h>
32#include <asm/system.h>
33#include <asm/io.h>
34
Bartlomiej Zolnierkiewiczd92f1a22008-04-26 22:25:18 +020035#define DRV_NAME "qd65xx"
36
Linus Torvalds1da177e2005-04-16 15:20:36 -070037#include "qd65xx.h"
38
39/*
40 * I/O ports are 0x30-0x31 (and 0x32-0x33 for qd6580)
41 * or 0xb0-0xb1 (and 0xb2-0xb3 for qd6580)
42 * -- qd6500 is a single IDE interface
43 * -- qd6580 is a dual IDE interface
44 *
45 * More research on qd6580 being done by willmore@cig.mot.com (David)
46 * More Information given by Petr Soucek (petr@ryston.cz)
47 * http://www.ryston.cz/petr/vlb
48 */
49
50/*
51 * base: Timer1
52 *
53 *
54 * base+0x01: Config (R/O)
55 *
56 * bit 0: ide baseport: 1 = 0x1f0 ; 0 = 0x170 (only useful for qd6500)
57 * bit 1: qd65xx baseport: 1 = 0xb0 ; 0 = 0x30
58 * bit 2: ID3: bus speed: 1 = <=33MHz ; 0 = >33MHz
59 * bit 3: qd6500: 1 = disabled, 0 = enabled
60 * qd6580: 1
61 * upper nibble:
62 * qd6500: 1100
63 * qd6580: either 1010 or 0101
64 *
65 *
66 * base+0x02: Timer2 (qd6580 only)
67 *
68 *
69 * base+0x03: Control (qd6580 only)
70 *
71 * bits 0-3 must always be set 1
72 * bit 4 must be set 1, but is set 0 by dos driver while measuring vlb clock
73 * bit 0 : 1 = Only primary port enabled : channel 0 for hda, channel 1 for hdb
74 * 0 = Primary and Secondary ports enabled : channel 0 for hda & hdb
75 * channel 1 for hdc & hdd
76 * bit 1 : 1 = only disks on primary port
77 * 0 = disks & ATAPI devices on primary port
78 * bit 2-4 : always 0
79 * bit 5 : status, but of what ?
80 * bit 6 : always set 1 by dos driver
81 * bit 7 : set 1 for non-ATAPI devices on primary port
82 * (maybe read-ahead and post-write buffer ?)
83 */
84
85static int timings[4]={-1,-1,-1,-1}; /* stores current timing for each timer */
86
Linus Torvalds1da177e2005-04-16 15:20:36 -070087/*
Bartlomiej Zolnierkiewiczd07616f2008-04-26 17:36:42 +020088 * qd65xx_select:
Linus Torvalds1da177e2005-04-16 15:20:36 -070089 *
Bartlomiej Zolnierkiewiczd07616f2008-04-26 17:36:42 +020090 * This routine is invoked to prepare for access to a given drive.
Linus Torvalds1da177e2005-04-16 15:20:36 -070091 */
92
Bartlomiej Zolnierkiewiczd07616f2008-04-26 17:36:42 +020093static void qd65xx_select(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -070094{
95 u8 index = (( (QD_TIMREG(drive)) & 0x80 ) >> 7) |
96 (QD_TIMREG(drive) & 0x02);
97
98 if (timings[index] != QD_TIMING(drive))
Bartlomiej Zolnierkiewiczc1965672007-10-20 00:32:37 +020099 outb(timings[index] = QD_TIMING(drive), QD_TIMREG(drive));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100}
101
102/*
103 * qd6500_compute_timing
104 *
105 * computes the timing value where
106 * lower nibble represents active time, in count of VLB clocks
107 * upper nibble represents recovery time, in count of VLB clocks
108 */
109
110static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery_time)
111{
Bartlomiej Zolnierkiewicz30e5ee42008-07-15 21:21:46 +0200112 int clk = ide_vlb_clk ? ide_vlb_clk : 50;
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200113 u8 act_cyc, rec_cyc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200115 if (clk <= 33) {
116 act_cyc = 9 - IDE_IN(active_time * clk / 1000 + 1, 2, 9);
117 rec_cyc = 15 - IDE_IN(recovery_time * clk / 1000 + 1, 0, 15);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 } else {
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200119 act_cyc = 8 - IDE_IN(active_time * clk / 1000 + 1, 1, 8);
120 rec_cyc = 18 - IDE_IN(recovery_time * clk / 1000 + 1, 3, 18);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121 }
122
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200123 return (rec_cyc << 4) | 0x08 | act_cyc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124}
125
126/*
127 * qd6580_compute_timing
128 *
129 * idem for qd6580
130 */
131
132static u8 qd6580_compute_timing (int active_time, int recovery_time)
133{
Bartlomiej Zolnierkiewicz30e5ee42008-07-15 21:21:46 +0200134 int clk = ide_vlb_clk ? ide_vlb_clk : 50;
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200135 u8 act_cyc, rec_cyc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200137 act_cyc = 17 - IDE_IN(active_time * clk / 1000 + 1, 2, 17);
138 rec_cyc = 15 - IDE_IN(recovery_time * clk / 1000 + 1, 2, 15);
139
140 return (rec_cyc << 4) | act_cyc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141}
142
143/*
144 * qd_find_disk_type
145 *
146 * tries to find timing from dos driver's table
147 */
148
149static int qd_find_disk_type (ide_drive_t *drive,
150 int *active_time, int *recovery_time)
151{
152 struct qd65xx_timing_s *p;
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200153 char *m = (char *)&drive->id[ATA_ID_PROD];
154 char model[ATA_ID_PROD_LEN];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200156 if (*m == 0)
157 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200159 strncpy(model, m, ATA_ID_PROD_LEN);
160 ide_fixstring(model, ATA_ID_PROD_LEN, 1); /* byte-swap */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161
162 for (p = qd65xx_timing ; p->offset != -1 ; p++) {
163 if (!strncmp(p->model, model+p->offset, 4)) {
164 printk(KERN_DEBUG "%s: listed !\n", drive->name);
165 *active_time = p->active;
166 *recovery_time = p->recovery;
167 return 1;
168 }
169 }
170 return 0;
171}
172
173/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 * qd_set_timing:
175 *
Bartlomiej Zolnierkiewiczd07616f2008-04-26 17:36:42 +0200176 * records the timing
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177 */
178
179static void qd_set_timing (ide_drive_t *drive, u8 timing)
180{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 drive->drive_data &= 0xff00;
182 drive->drive_data |= timing;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183
184 printk(KERN_DEBUG "%s: %#x\n", drive->name, timing);
185}
186
Bartlomiej Zolnierkiewicz26bcb872007-10-11 23:54:00 +0200187static void qd6500_set_pio_mode(ide_drive_t *drive, const u8 pio)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188{
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200189 u16 *id = drive->id;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190 int active_time = 175;
191 int recovery_time = 415; /* worst case values from the dos driver */
192
Bartlomiej Zolnierkiewicz26bcb872007-10-11 23:54:00 +0200193 /*
194 * FIXME: use "pio" value
195 */
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200196 if (!qd_find_disk_type(drive, &active_time, &recovery_time) &&
Bartlomiej Zolnierkiewicz48fb2682008-10-10 22:39:19 +0200197 (id[ATA_ID_OLD_PIO_MODES] & 0xff) && (id[ATA_ID_FIELD_VALID] & 2) &&
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200198 id[ATA_ID_EIDE_PIO] >= 240) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199 printk(KERN_INFO "%s: PIO mode%d\n", drive->name,
Bartlomiej Zolnierkiewicz48fb2682008-10-10 22:39:19 +0200200 id[ATA_ID_OLD_PIO_MODES] & 0xff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201 active_time = 110;
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200202 recovery_time = drive->id[ATA_ID_EIDE_PIO] - 120;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 }
204
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100205 qd_set_timing(drive, qd6500_compute_timing(drive->hwif,
206 active_time, recovery_time));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207}
208
Bartlomiej Zolnierkiewicz26bcb872007-10-11 23:54:00 +0200209static void qd6580_set_pio_mode(ide_drive_t *drive, const u8 pio)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210{
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200211 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicz2feecfa2008-07-16 20:33:37 +0200212 struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200213 unsigned int cycle_time;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 int active_time = 175;
215 int recovery_time = 415; /* worst case values from the dos driver */
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200216 u8 base = (hwif->config_data & 0xff00) >> 8;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217
218 if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)) {
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200219 cycle_time = ide_pio_cycle_time(drive, pio);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220
221 switch (pio) {
222 case 0: break;
223 case 3:
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200224 if (cycle_time >= 110) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 active_time = 86;
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200226 recovery_time = cycle_time - 102;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227 } else
228 printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name);
229 break;
230 case 4:
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200231 if (cycle_time >= 69) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232 active_time = 70;
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200233 recovery_time = cycle_time - 61;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234 } else
235 printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name);
236 break;
237 default:
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200238 if (cycle_time >= 180) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239 active_time = 110;
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200240 recovery_time = cycle_time - 120;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241 } else {
Bartlomiej Zolnierkiewicz2feecfa2008-07-16 20:33:37 +0200242 active_time = t->active;
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200243 recovery_time = cycle_time - active_time;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244 }
245 }
246 printk(KERN_INFO "%s: PIO mode%d\n", drive->name,pio);
247 }
248
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100249 if (!hwif->channel && drive->media != ide_disk) {
Bartlomiej Zolnierkiewiczc1965672007-10-20 00:32:37 +0200250 outb(0x5f, QD_CONTROL_PORT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 printk(KERN_WARNING "%s: ATAPI: disabled read-ahead FIFO "
252 "and post-write buffer on %s.\n",
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100253 drive->name, hwif->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 }
255
256 qd_set_timing(drive, qd6580_compute_timing(active_time, recovery_time));
257}
258
259/*
260 * qd_testreg
261 *
262 * tests if the given port is a register
263 */
264
265static int __init qd_testreg(int port)
266{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 unsigned long flags;
Bartlomiej Zolnierkiewiczf9498202007-10-20 00:32:35 +0200268 u8 savereg, readreg;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269
Bartlomiej Zolnierkiewiczc1965672007-10-20 00:32:37 +0200270 local_irq_save(flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 savereg = inb_p(port);
272 outb_p(QD_TESTVAL, port); /* safe value */
273 readreg = inb_p(port);
274 outb(savereg, port);
Bartlomiej Zolnierkiewiczc1965672007-10-20 00:32:37 +0200275 local_irq_restore(flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276
277 if (savereg == QD_TESTVAL) {
278 printk(KERN_ERR "Outch ! the probe for qd65xx isn't reliable !\n");
279 printk(KERN_ERR "Please contact maintainers to tell about your hardware\n");
280 printk(KERN_ERR "Assuming qd65xx is not present.\n");
281 return 1;
282 }
283
284 return (readreg != QD_TESTVAL);
285}
286
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200287static void __init qd6500_init_dev(ide_drive_t *drive)
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100288{
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200289 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200290 u8 base = (hwif->config_data & 0xff00) >> 8;
291 u8 config = QD_CONFIG(hwif);
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100292
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200293 drive->drive_data = QD6500_DEF_DATA;
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100294}
295
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200296static void __init qd6580_init_dev(ide_drive_t *drive)
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100297{
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200298 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100299 u16 t1, t2;
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200300 u8 base = (hwif->config_data & 0xff00) >> 8;
301 u8 config = QD_CONFIG(hwif);
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100302
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200303 if (hwif->host_flags & IDE_HFLAG_SINGLE) {
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100304 t1 = QD6580_DEF_DATA;
305 t2 = QD6580_DEF_DATA2;
306 } else
307 t2 = t1 = hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA;
308
Bartlomiej Zolnierkiewicz123995b2008-10-13 21:39:40 +0200309 drive->drive_data = (drive->dn & 1) ? t2 : t1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310}
311
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200312static const struct ide_port_ops qd6500_port_ops = {
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200313 .init_dev = qd6500_init_dev,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200314 .set_pio_mode = qd6500_set_pio_mode,
315 .selectproc = qd65xx_select,
316};
317
318static const struct ide_port_ops qd6580_port_ops = {
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200319 .init_dev = qd6580_init_dev,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200320 .set_pio_mode = qd6580_set_pio_mode,
321 .selectproc = qd65xx_select,
322};
323
Bartlomiej Zolnierkiewiczc413b9b2008-02-02 19:56:31 +0100324static const struct ide_port_info qd65xx_port_info __initdata = {
Bartlomiej Zolnierkiewiczd92f1a22008-04-26 22:25:18 +0200325 .name = DRV_NAME,
Bartlomiej Zolnierkiewiczc413b9b2008-02-02 19:56:31 +0100326 .chipset = ide_qd65xx,
327 .host_flags = IDE_HFLAG_IO_32BIT |
Bartlomiej Zolnierkiewicz0d28ec72008-04-27 15:38:29 +0200328 IDE_HFLAG_NO_DMA,
Bartlomiej Zolnierkiewiczc413b9b2008-02-02 19:56:31 +0100329 .pio_mask = ATA_PIO4,
330};
331
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332/*
333 * qd_probe:
334 *
335 * looks at the specified baseport, and if qd found, registers & initialises it
336 * return 1 if another qd may be probed
337 */
338
339static int __init qd_probe(int base)
340{
Bartlomiej Zolnierkiewicz0bfeee72008-04-26 22:25:16 +0200341 int rc;
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200342 u8 config, unit, control;
Bartlomiej Zolnierkiewicze277f912008-04-26 17:36:36 +0200343 struct ide_port_info d = qd65xx_port_info;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344
Bartlomiej Zolnierkiewiczc1965672007-10-20 00:32:37 +0200345 config = inb(QD_CONFIG_PORT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
347 if (! ((config & QD_CONFIG_BASEPORT) >> 1 == (base == 0xb0)) )
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200348 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349
350 unit = ! (config & QD_CONFIG_IDE_BASEPORT);
351
Bartlomiej Zolnierkiewicze277f912008-04-26 17:36:36 +0200352 if (unit)
353 d.host_flags |= IDE_HFLAG_QD_2ND_PORT;
354
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200355 switch (config & 0xf0) {
356 case QD_CONFIG_QD6500:
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200357 if (qd_testreg(base))
358 return -ENODEV; /* bad register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360 if (config & QD_CONFIG_DISABLED) {
361 printk(KERN_WARNING "qd6500 is disabled !\n");
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200362 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 }
364
Bartlomiej Zolnierkiewicze277f912008-04-26 17:36:36 +0200365 printk(KERN_NOTICE "qd6500 at %#x\n", base);
366 printk(KERN_DEBUG "qd6500: config=%#x, ID3=%u\n",
367 config, QD_ID3);
368
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200369 d.port_ops = &qd6500_port_ops;
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200370 d.host_flags |= IDE_HFLAG_SINGLE;
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200371 break;
372 case QD_CONFIG_QD6580_A:
373 case QD_CONFIG_QD6580_B:
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200374 if (qd_testreg(base) || qd_testreg(base + 0x02))
375 return -ENODEV; /* bad registers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376
Bartlomiej Zolnierkiewiczc1965672007-10-20 00:32:37 +0200377 control = inb(QD_CONTROL_PORT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378
379 printk(KERN_NOTICE "qd6580 at %#x\n", base);
380 printk(KERN_DEBUG "qd6580: config=%#x, control=%#x, ID3=%u\n",
381 config, control, QD_ID3);
382
Bartlomiej Zolnierkiewicz788d6692008-02-26 21:50:35 +0100383 outb(QD_DEF_CONTR, QD_CONTROL_PORT);
384
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200385 d.port_ops = &qd6580_port_ops;
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200386 if (control & QD_CONTR_SEC_DISABLED)
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200387 d.host_flags |= IDE_HFLAG_SINGLE;
388
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200389 printk(KERN_INFO "qd6580: %s IDE board\n",
390 (control & QD_CONTR_SEC_DISABLED) ? "single" : "dual");
391 break;
392 default:
393 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 }
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200395
396 rc = ide_legacy_device_add(&d, (base << 8) | config);
397
398 if (d.host_flags & IDE_HFLAG_SINGLE)
399 return (rc == 0) ? 1 : rc;
400
401 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402}
403
Bartlomiej Zolnierkiewiczef87f8d2008-04-27 15:38:24 +0200404static int probe_qd65xx;
Bartlomiej Zolnierkiewicz84913882007-03-03 17:48:55 +0100405
406module_param_named(probe, probe_qd65xx, bool, 0);
407MODULE_PARM_DESC(probe, "probe for QD65xx chipsets");
408
Bartlomiej Zolnierkiewiczade2daf2008-01-26 20:13:07 +0100409static int __init qd65xx_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410{
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200411 int rc1, rc2 = -ENODEV;
412
Bartlomiej Zolnierkiewicz84913882007-03-03 17:48:55 +0100413 if (probe_qd65xx == 0)
414 return -ENODEV;
415
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200416 rc1 = qd_probe(0x30);
417 if (rc1)
418 rc2 = qd_probe(0xb0);
419
420 if (rc1 < 0 && rc2 < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 return -ENODEV;
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200422
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 return 0;
424}
425
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426module_init(qd65xx_init);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427
428MODULE_AUTHOR("Samuel Thibault");
429MODULE_DESCRIPTION("support of qd65xx vlb ide chipset");
430MODULE_LICENSE("GPL");