1 #include <linux/kernel.h>
2 #include <linux/ide.h>
3 #include <linux/slab.h>
4 #include <linux/export.h>
5 #include <linux/seq_file.h>
6
7 #include "ide-disk.h"
8
smart_enable(ide_drive_t * drive)9 static int smart_enable(ide_drive_t *drive)
10 {
11 struct ide_cmd cmd;
12 struct ide_taskfile *tf = &cmd.tf;
13
14 memset(&cmd, 0, sizeof(cmd));
15 tf->feature = ATA_SMART_ENABLE;
16 tf->lbam = ATA_SMART_LBAM_PASS;
17 tf->lbah = ATA_SMART_LBAH_PASS;
18 tf->command = ATA_CMD_SMART;
19 cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
20 cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE;
21
22 return ide_no_data_taskfile(drive, &cmd);
23 }
24
get_smart_data(ide_drive_t * drive,u8 * buf,u8 sub_cmd)25 static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd)
26 {
27 struct ide_cmd cmd;
28 struct ide_taskfile *tf = &cmd.tf;
29
30 memset(&cmd, 0, sizeof(cmd));
31 tf->feature = sub_cmd;
32 tf->nsect = 0x01;
33 tf->lbam = ATA_SMART_LBAM_PASS;
34 tf->lbah = ATA_SMART_LBAH_PASS;
35 tf->command = ATA_CMD_SMART;
36 cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
37 cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE;
38 cmd.protocol = ATA_PROT_PIO;
39
40 return ide_raw_taskfile(drive, &cmd, buf, 1);
41 }
42
idedisk_cache_proc_show(struct seq_file * m,void * v)43 static int idedisk_cache_proc_show(struct seq_file *m, void *v)
44 {
45 ide_drive_t *drive = (ide_drive_t *) m->private;
46
47 if (drive->dev_flags & IDE_DFLAG_ID_READ)
48 seq_printf(m, "%i\n", drive->id[ATA_ID_BUF_SIZE] / 2);
49 else
50 seq_printf(m, "(none)\n");
51 return 0;
52 }
53
idedisk_cache_proc_open(struct inode * inode,struct file * file)54 static int idedisk_cache_proc_open(struct inode *inode, struct file *file)
55 {
56 return single_open(file, idedisk_cache_proc_show, PDE_DATA(inode));
57 }
58
59 static const struct file_operations idedisk_cache_proc_fops = {
60 .owner = THIS_MODULE,
61 .open = idedisk_cache_proc_open,
62 .read = seq_read,
63 .llseek = seq_lseek,
64 .release = single_release,
65 };
66
idedisk_capacity_proc_show(struct seq_file * m,void * v)67 static int idedisk_capacity_proc_show(struct seq_file *m, void *v)
68 {
69 ide_drive_t*drive = (ide_drive_t *)m->private;
70
71 seq_printf(m, "%llu\n", (long long)ide_gd_capacity(drive));
72 return 0;
73 }
74
idedisk_capacity_proc_open(struct inode * inode,struct file * file)75 static int idedisk_capacity_proc_open(struct inode *inode, struct file *file)
76 {
77 return single_open(file, idedisk_capacity_proc_show, PDE_DATA(inode));
78 }
79
80 static const struct file_operations idedisk_capacity_proc_fops = {
81 .owner = THIS_MODULE,
82 .open = idedisk_capacity_proc_open,
83 .read = seq_read,
84 .llseek = seq_lseek,
85 .release = single_release,
86 };
87
__idedisk_proc_show(struct seq_file * m,ide_drive_t * drive,u8 sub_cmd)88 static int __idedisk_proc_show(struct seq_file *m, ide_drive_t *drive, u8 sub_cmd)
89 {
90 u8 *buf;
91
92 buf = kmalloc(SECTOR_SIZE, GFP_KERNEL);
93 if (!buf)
94 return -ENOMEM;
95
96 (void)smart_enable(drive);
97
98 if (get_smart_data(drive, buf, sub_cmd) == 0) {
99 __le16 *val = (__le16 *)buf;
100 int i;
101
102 for (i = 0; i < SECTOR_SIZE / 2; i++) {
103 seq_printf(m, "%04x%c", le16_to_cpu(val[i]),
104 (i % 8) == 7 ? '\n' : ' ');
105 }
106 }
107 kfree(buf);
108 return 0;
109 }
110
idedisk_sv_proc_show(struct seq_file * m,void * v)111 static int idedisk_sv_proc_show(struct seq_file *m, void *v)
112 {
113 return __idedisk_proc_show(m, m->private, ATA_SMART_READ_VALUES);
114 }
115
idedisk_sv_proc_open(struct inode * inode,struct file * file)116 static int idedisk_sv_proc_open(struct inode *inode, struct file *file)
117 {
118 return single_open(file, idedisk_sv_proc_show, PDE_DATA(inode));
119 }
120
121 static const struct file_operations idedisk_sv_proc_fops = {
122 .owner = THIS_MODULE,
123 .open = idedisk_sv_proc_open,
124 .read = seq_read,
125 .llseek = seq_lseek,
126 .release = single_release,
127 };
128
idedisk_st_proc_show(struct seq_file * m,void * v)129 static int idedisk_st_proc_show(struct seq_file *m, void *v)
130 {
131 return __idedisk_proc_show(m, m->private, ATA_SMART_READ_THRESHOLDS);
132 }
133
idedisk_st_proc_open(struct inode * inode,struct file * file)134 static int idedisk_st_proc_open(struct inode *inode, struct file *file)
135 {
136 return single_open(file, idedisk_st_proc_show, PDE_DATA(inode));
137 }
138
139 static const struct file_operations idedisk_st_proc_fops = {
140 .owner = THIS_MODULE,
141 .open = idedisk_st_proc_open,
142 .read = seq_read,
143 .llseek = seq_lseek,
144 .release = single_release,
145 };
146
147 ide_proc_entry_t ide_disk_proc[] = {
148 { "cache", S_IFREG|S_IRUGO, &idedisk_cache_proc_fops },
149 { "capacity", S_IFREG|S_IRUGO, &idedisk_capacity_proc_fops },
150 { "geometry", S_IFREG|S_IRUGO, &ide_geometry_proc_fops },
151 { "smart_values", S_IFREG|S_IRUSR, &idedisk_sv_proc_fops },
152 { "smart_thresholds", S_IFREG|S_IRUSR, &idedisk_st_proc_fops },
153 {}
154 };
155
156 ide_devset_rw_field(bios_cyl, bios_cyl);
157 ide_devset_rw_field(bios_head, bios_head);
158 ide_devset_rw_field(bios_sect, bios_sect);
159 ide_devset_rw_field(failures, failures);
160 ide_devset_rw_field(lun, lun);
161 ide_devset_rw_field(max_failures, max_failures);
162
163 const struct ide_proc_devset ide_disk_settings[] = {
164 IDE_PROC_DEVSET(acoustic, 0, 254),
165 IDE_PROC_DEVSET(address, 0, 2),
166 IDE_PROC_DEVSET(bios_cyl, 0, 65535),
167 IDE_PROC_DEVSET(bios_head, 0, 255),
168 IDE_PROC_DEVSET(bios_sect, 0, 63),
169 IDE_PROC_DEVSET(failures, 0, 65535),
170 IDE_PROC_DEVSET(lun, 0, 7),
171 IDE_PROC_DEVSET(max_failures, 0, 65535),
172 IDE_PROC_DEVSET(multcount, 0, 16),
173 IDE_PROC_DEVSET(nowerr, 0, 1),
174 IDE_PROC_DEVSET(wcache, 0, 1),
175 { NULL },
176 };
177