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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
Samuel Thibault51935352009-02-03 13:12:58 +010019 * Samuel Thibault <samuel.thibault@ens-lyon.org>
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 */
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
Sergei Shtylyovabb596b2009-03-31 20:15:32 +020093static void qd65xx_dev_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));
Sergei Shtylyovabb596b2009-03-31 20:15:32 +0200100
101 outb(drive->select | ATA_DEVICE_OBS, drive->hwif->io_ports.device_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102}
103
104/*
105 * qd6500_compute_timing
106 *
107 * computes the timing value where
108 * lower nibble represents active time, in count of VLB clocks
109 * upper nibble represents recovery time, in count of VLB clocks
110 */
111
112static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery_time)
113{
Bartlomiej Zolnierkiewicz30e5ee42008-07-15 21:21:46 +0200114 int clk = ide_vlb_clk ? ide_vlb_clk : 50;
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200115 u8 act_cyc, rec_cyc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200117 if (clk <= 33) {
118 act_cyc = 9 - IDE_IN(active_time * clk / 1000 + 1, 2, 9);
119 rec_cyc = 15 - IDE_IN(recovery_time * clk / 1000 + 1, 0, 15);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 } else {
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200121 act_cyc = 8 - IDE_IN(active_time * clk / 1000 + 1, 1, 8);
122 rec_cyc = 18 - IDE_IN(recovery_time * clk / 1000 + 1, 3, 18);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123 }
124
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200125 return (rec_cyc << 4) | 0x08 | act_cyc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126}
127
128/*
129 * qd6580_compute_timing
130 *
131 * idem for qd6580
132 */
133
134static u8 qd6580_compute_timing (int active_time, int recovery_time)
135{
Bartlomiej Zolnierkiewicz30e5ee42008-07-15 21:21:46 +0200136 int clk = ide_vlb_clk ? ide_vlb_clk : 50;
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200137 u8 act_cyc, rec_cyc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138
Bartlomiej Zolnierkiewiczebae41a2008-04-27 15:38:29 +0200139 act_cyc = 17 - IDE_IN(active_time * clk / 1000 + 1, 2, 17);
140 rec_cyc = 15 - IDE_IN(recovery_time * clk / 1000 + 1, 2, 15);
141
142 return (rec_cyc << 4) | act_cyc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143}
144
145/*
146 * qd_find_disk_type
147 *
148 * tries to find timing from dos driver's table
149 */
150
151static int qd_find_disk_type (ide_drive_t *drive,
152 int *active_time, int *recovery_time)
153{
154 struct qd65xx_timing_s *p;
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200155 char *m = (char *)&drive->id[ATA_ID_PROD];
156 char model[ATA_ID_PROD_LEN];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200158 if (*m == 0)
159 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200161 strncpy(model, m, ATA_ID_PROD_LEN);
162 ide_fixstring(model, ATA_ID_PROD_LEN, 1); /* byte-swap */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163
164 for (p = qd65xx_timing ; p->offset != -1 ; p++) {
165 if (!strncmp(p->model, model+p->offset, 4)) {
166 printk(KERN_DEBUG "%s: listed !\n", drive->name);
167 *active_time = p->active;
168 *recovery_time = p->recovery;
169 return 1;
170 }
171 }
172 return 0;
173}
174
175/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176 * qd_set_timing:
177 *
Bartlomiej Zolnierkiewiczd07616f2008-04-26 17:36:42 +0200178 * records the timing
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 */
180
181static void qd_set_timing (ide_drive_t *drive, u8 timing)
182{
Joao Ramos5bfb151f2009-06-15 22:13:44 +0200183 unsigned long data = (unsigned long)ide_get_drivedata(drive);
184
185 data &= 0xff00;
186 data |= timing;
187 ide_set_drivedata(drive, (void *)data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188
189 printk(KERN_DEBUG "%s: %#x\n", drive->name, timing);
190}
191
Bartlomiej Zolnierkiewicze085b3c2010-01-19 01:44:41 -0800192static void qd6500_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193{
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200194 u16 *id = drive->id;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 int active_time = 175;
196 int recovery_time = 415; /* worst case values from the dos driver */
197
Bartlomiej Zolnierkiewicze085b3c2010-01-19 01:44:41 -0800198 /* FIXME: use drive->pio_mode value */
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200199 if (!qd_find_disk_type(drive, &active_time, &recovery_time) &&
Bartlomiej Zolnierkiewicz48fb2682008-10-10 22:39:19 +0200200 (id[ATA_ID_OLD_PIO_MODES] & 0xff) && (id[ATA_ID_FIELD_VALID] & 2) &&
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200201 id[ATA_ID_EIDE_PIO] >= 240) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 printk(KERN_INFO "%s: PIO mode%d\n", drive->name,
Bartlomiej Zolnierkiewicz48fb2682008-10-10 22:39:19 +0200203 id[ATA_ID_OLD_PIO_MODES] & 0xff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 active_time = 110;
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200205 recovery_time = drive->id[ATA_ID_EIDE_PIO] - 120;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 }
207
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100208 qd_set_timing(drive, qd6500_compute_timing(drive->hwif,
209 active_time, recovery_time));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210}
211
Bartlomiej Zolnierkiewicze085b3c2010-01-19 01:44:41 -0800212static void qd6580_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213{
Bartlomiej Zolnierkiewicze085b3c2010-01-19 01:44:41 -0800214 const u8 pio = drive->pio_mode - XFER_PIO_0;
Bartlomiej Zolnierkiewicz2feecfa2008-07-16 20:33:37 +0200215 struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200216 unsigned int cycle_time;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 int active_time = 175;
218 int recovery_time = 415; /* worst case values from the dos driver */
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200219 u8 base = (hwif->config_data & 0xff00) >> 8;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220
221 if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)) {
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200222 cycle_time = ide_pio_cycle_time(drive, pio);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223
224 switch (pio) {
225 case 0: break;
226 case 3:
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200227 if (cycle_time >= 110) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228 active_time = 86;
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200229 recovery_time = cycle_time - 102;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 } else
231 printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name);
232 break;
233 case 4:
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200234 if (cycle_time >= 69) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235 active_time = 70;
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200236 recovery_time = cycle_time - 61;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 } else
238 printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name);
239 break;
240 default:
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200241 if (cycle_time >= 180) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 active_time = 110;
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200243 recovery_time = cycle_time - 120;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244 } else {
Bartlomiej Zolnierkiewicz2feecfa2008-07-16 20:33:37 +0200245 active_time = t->active;
Bartlomiej Zolnierkiewicz7dd00082007-07-20 01:11:56 +0200246 recovery_time = cycle_time - active_time;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 }
248 }
249 printk(KERN_INFO "%s: PIO mode%d\n", drive->name,pio);
250 }
251
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100252 if (!hwif->channel && drive->media != ide_disk) {
Bartlomiej Zolnierkiewiczc1965672007-10-20 00:32:37 +0200253 outb(0x5f, QD_CONTROL_PORT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 printk(KERN_WARNING "%s: ATAPI: disabled read-ahead FIFO "
255 "and post-write buffer on %s.\n",
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100256 drive->name, hwif->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 }
258
259 qd_set_timing(drive, qd6580_compute_timing(active_time, recovery_time));
260}
261
262/*
263 * qd_testreg
264 *
265 * tests if the given port is a register
266 */
267
268static int __init qd_testreg(int port)
269{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 unsigned long flags;
Bartlomiej Zolnierkiewiczf9498202007-10-20 00:32:35 +0200271 u8 savereg, readreg;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272
Bartlomiej Zolnierkiewiczc1965672007-10-20 00:32:37 +0200273 local_irq_save(flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274 savereg = inb_p(port);
275 outb_p(QD_TESTVAL, port); /* safe value */
276 readreg = inb_p(port);
277 outb(savereg, port);
Bartlomiej Zolnierkiewiczc1965672007-10-20 00:32:37 +0200278 local_irq_restore(flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279
280 if (savereg == QD_TESTVAL) {
281 printk(KERN_ERR "Outch ! the probe for qd65xx isn't reliable !\n");
282 printk(KERN_ERR "Please contact maintainers to tell about your hardware\n");
283 printk(KERN_ERR "Assuming qd65xx is not present.\n");
284 return 1;
285 }
286
287 return (readreg != QD_TESTVAL);
288}
289
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200290static void __init qd6500_init_dev(ide_drive_t *drive)
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100291{
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200292 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200293 u8 base = (hwif->config_data & 0xff00) >> 8;
294 u8 config = QD_CONFIG(hwif);
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100295
Joao Ramos5bfb151f2009-06-15 22:13:44 +0200296 ide_set_drivedata(drive, (void *)QD6500_DEF_DATA);
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100297}
298
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200299static void __init qd6580_init_dev(ide_drive_t *drive)
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100300{
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200301 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100302 u16 t1, t2;
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200303 u8 base = (hwif->config_data & 0xff00) >> 8;
304 u8 config = QD_CONFIG(hwif);
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100305
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200306 if (hwif->host_flags & IDE_HFLAG_SINGLE) {
Bartlomiej Zolnierkiewicz1f2cf8b2008-02-02 19:56:40 +0100307 t1 = QD6580_DEF_DATA;
308 t2 = QD6580_DEF_DATA2;
309 } else
310 t2 = t1 = hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA;
311
Joao Ramos5bfb151f2009-06-15 22:13:44 +0200312 ide_set_drivedata(drive, (void *)((drive->dn & 1) ? t2 : t1));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313}
314
Sergei Shtylyovabb596b2009-03-31 20:15:32 +0200315static const struct ide_tp_ops qd65xx_tp_ops = {
316 .exec_command = ide_exec_command,
317 .read_status = ide_read_status,
318 .read_altstatus = ide_read_altstatus,
319 .write_devctl = ide_write_devctl,
320
321 .dev_select = qd65xx_dev_select,
322 .tf_load = ide_tf_load,
323 .tf_read = ide_tf_read,
324
325 .input_data = ide_input_data,
326 .output_data = ide_output_data,
327};
328
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200329static const struct ide_port_ops qd6500_port_ops = {
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200330 .init_dev = qd6500_init_dev,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200331 .set_pio_mode = qd6500_set_pio_mode,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200332};
333
334static const struct ide_port_ops qd6580_port_ops = {
Bartlomiej Zolnierkiewicze6d95bd2008-07-16 20:33:42 +0200335 .init_dev = qd6580_init_dev,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200336 .set_pio_mode = qd6580_set_pio_mode,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200337};
338
Bartlomiej Zolnierkiewiczc413b9b2008-02-02 19:56:31 +0100339static const struct ide_port_info qd65xx_port_info __initdata = {
Bartlomiej Zolnierkiewiczd92f1a22008-04-26 22:25:18 +0200340 .name = DRV_NAME,
Sergei Shtylyovabb596b2009-03-31 20:15:32 +0200341 .tp_ops = &qd65xx_tp_ops,
Bartlomiej Zolnierkiewiczc413b9b2008-02-02 19:56:31 +0100342 .chipset = ide_qd65xx,
343 .host_flags = IDE_HFLAG_IO_32BIT |
Bartlomiej Zolnierkiewicz0d28ec72008-04-27 15:38:29 +0200344 IDE_HFLAG_NO_DMA,
Bartlomiej Zolnierkiewiczc413b9b2008-02-02 19:56:31 +0100345 .pio_mask = ATA_PIO4,
346};
347
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348/*
349 * qd_probe:
350 *
351 * looks at the specified baseport, and if qd found, registers & initialises it
352 * return 1 if another qd may be probed
353 */
354
355static int __init qd_probe(int base)
356{
Bartlomiej Zolnierkiewicz0bfeee72008-04-26 22:25:16 +0200357 int rc;
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200358 u8 config, unit, control;
Bartlomiej Zolnierkiewicze277f912008-04-26 17:36:36 +0200359 struct ide_port_info d = qd65xx_port_info;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360
Bartlomiej Zolnierkiewiczc1965672007-10-20 00:32:37 +0200361 config = inb(QD_CONFIG_PORT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362
363 if (! ((config & QD_CONFIG_BASEPORT) >> 1 == (base == 0xb0)) )
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200364 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365
366 unit = ! (config & QD_CONFIG_IDE_BASEPORT);
367
Bartlomiej Zolnierkiewicze277f912008-04-26 17:36:36 +0200368 if (unit)
369 d.host_flags |= IDE_HFLAG_QD_2ND_PORT;
370
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200371 switch (config & 0xf0) {
372 case QD_CONFIG_QD6500:
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200373 if (qd_testreg(base))
374 return -ENODEV; /* bad register */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 if (config & QD_CONFIG_DISABLED) {
377 printk(KERN_WARNING "qd6500 is disabled !\n");
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200378 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 }
380
Bartlomiej Zolnierkiewicze277f912008-04-26 17:36:36 +0200381 printk(KERN_NOTICE "qd6500 at %#x\n", base);
382 printk(KERN_DEBUG "qd6500: config=%#x, ID3=%u\n",
383 config, QD_ID3);
384
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200385 d.port_ops = &qd6500_port_ops;
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200386 d.host_flags |= IDE_HFLAG_SINGLE;
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200387 break;
388 case QD_CONFIG_QD6580_A:
389 case QD_CONFIG_QD6580_B:
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200390 if (qd_testreg(base) || qd_testreg(base + 0x02))
391 return -ENODEV; /* bad registers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392
Bartlomiej Zolnierkiewiczc1965672007-10-20 00:32:37 +0200393 control = inb(QD_CONTROL_PORT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394
395 printk(KERN_NOTICE "qd6580 at %#x\n", base);
396 printk(KERN_DEBUG "qd6580: config=%#x, control=%#x, ID3=%u\n",
397 config, control, QD_ID3);
398
Bartlomiej Zolnierkiewicz788d6692008-02-26 21:50:35 +0100399 outb(QD_DEF_CONTR, QD_CONTROL_PORT);
400
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200401 d.port_ops = &qd6580_port_ops;
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200402 if (control & QD_CONTR_SEC_DISABLED)
Bartlomiej Zolnierkiewicz79472b62008-04-26 17:36:42 +0200403 d.host_flags |= IDE_HFLAG_SINGLE;
404
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200405 printk(KERN_INFO "qd6580: %s IDE board\n",
406 (control & QD_CONTR_SEC_DISABLED) ? "single" : "dual");
407 break;
408 default:
409 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 }
Bartlomiej Zolnierkiewicz7a2199f2008-04-26 22:25:16 +0200411
412 rc = ide_legacy_device_add(&d, (base << 8) | config);
413
414 if (d.host_flags & IDE_HFLAG_SINGLE)
415 return (rc == 0) ? 1 : rc;
416
417 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418}
419
Bartlomiej Zolnierkiewiczef87f8d2008-04-27 15:38:24 +0200420static int probe_qd65xx;
Bartlomiej Zolnierkiewicz84913882007-03-03 17:48:55 +0100421
422module_param_named(probe, probe_qd65xx, bool, 0);
423MODULE_PARM_DESC(probe, "probe for QD65xx chipsets");
424
Bartlomiej Zolnierkiewiczade2daf2008-01-26 20:13:07 +0100425static int __init qd65xx_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426{
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200427 int rc1, rc2 = -ENODEV;
428
Bartlomiej Zolnierkiewicz84913882007-03-03 17:48:55 +0100429 if (probe_qd65xx == 0)
430 return -ENODEV;
431
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200432 rc1 = qd_probe(0x30);
433 if (rc1)
434 rc2 = qd_probe(0xb0);
435
436 if (rc1 < 0 && rc2 < 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 return -ENODEV;
Bartlomiej Zolnierkiewicz7daf66d2008-04-26 17:36:35 +0200438
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439 return 0;
440}
441
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442module_init(qd65xx_init);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443
444MODULE_AUTHOR("Samuel Thibault");
445MODULE_DESCRIPTION("support of qd65xx vlb ide chipset");
446MODULE_LICENSE("GPL");