aboutsummaryrefslogtreecommitdiff
path: root/drivers/ide/ide-disk_proc.c
blob: f9bbd904eae72651d65e33b4dba06ec4f95f69ee (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
#include <linux/kernel.h>
#include <linux/ide.h>
#include <linux/slab.h>
#include <linux/seq_file.h>

#include "ide-disk.h"

static int smart_enable(ide_drive_t *drive)
{
	struct ide_cmd cmd;
	struct ide_taskfile *tf = &cmd.tf;

	memset(&cmd, 0, sizeof(cmd));
	tf->feature = ATA_SMART_ENABLE;
	tf->lbam    = ATA_SMART_LBAM_PASS;
	tf->lbah    = ATA_SMART_LBAH_PASS;
	tf->command = ATA_CMD_SMART;
	cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
	cmd.valid.in.tf  = IDE_VALID_IN_TF  | IDE_VALID_DEVICE;

	return ide_no_data_taskfile(drive, &cmd);
}

static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd)
{
	struct ide_cmd cmd;
	struct ide_taskfile *tf = &cmd.tf;

	memset(&cmd, 0, sizeof(cmd));
	tf->feature = sub_cmd;
	tf->nsect   = 0x01;
	tf->lbam    = ATA_SMART_LBAM_PASS;
	tf->lbah    = ATA_SMART_LBAH_PASS;
	tf->command = ATA_CMD_SMART;
	cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
	cmd.valid.in.tf  = IDE_VALID_IN_TF  | IDE_VALID_DEVICE;
	cmd.protocol = ATA_PROT_PIO;

	return ide_raw_taskfile(drive, &cmd, buf, 1);
}

static int idedisk_cache_proc_show(struct seq_file *m, void *v)
{
	ide_drive_t	*drive = (ide_drive_t *) m->private;

	if (drive->dev_flags & IDE_DFLAG_ID_READ)
		seq_printf(m, "%i\n", drive->id[ATA_ID_BUF_SIZE] / 2);
	else
		seq_printf(m, "(none)\n");
	return 0;
}

static int idedisk_cache_proc_open(struct inode *inode, struct file *file)
{
	return single_open(file, idedisk_cache_proc_show, PDE(inode)->data);
}

static const struct file_operations idedisk_cache_proc_fops = {
	.owner		= THIS_MODULE,
	.open		= idedisk_cache_proc_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
};

static int idedisk_capacity_proc_show(struct seq_file *m, void *v)
{
	ide_drive_t*drive = (ide_drive_t *)m->private;

	seq_printf(m, "%llu\n", (long long)ide_gd_capacity(drive));
	return 0;
}

static int idedisk_capacity_proc_open(struct inode *inode, struct file *file)
{
	return single_open(file, idedisk_capacity_proc_show, PDE(inode)->data);
}

static const struct file_operations idedisk_capacity_proc_fops = {
	.owner		= THIS_MODULE,
	.open		= idedisk_capacity_proc_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
};

static int __idedisk_proc_show(struct seq_file *m, ide_drive_t *drive, u8 sub_cmd)
{
	u8 *buf;

	buf = kmalloc(SECTOR_SIZE, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	(void)smart_enable(drive);

	if (get_smart_data(drive, buf, sub_cmd) == 0) {
		__le16 *val = (__le16 *)buf;
		int i;

		for (i = 0; i < SECTOR_SIZE / 2; i++) {
			seq_printf(m, "%04x%c", le16_to_cpu(val[i]),
					(i % 8) == 7 ? '\n' : ' ');
		}
	}
	kfree(buf);
	return 0;
}

static int idedisk_sv_proc_show(struct seq_file *m, void *v)
{
	return __idedisk_proc_show(m, m->private, ATA_SMART_READ_VALUES);
}

static int idedisk_sv_proc_open(struct inode *inode, struct file *file)
{
	return single_open(file, idedisk_sv_proc_show, PDE(inode)->data);
}

static const struct file_operations idedisk_sv_proc_fops = {
	.owner		= THIS_MODULE,
	.open		= idedisk_sv_proc_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
};

static int idedisk_st_proc_show(struct seq_file *m, void *v)
{
	return __idedisk_proc_show(m, m->private, ATA_SMART_READ_THRESHOLDS);
}

static int idedisk_st_proc_open(struct inode *inode, struct file *file)
{
	return single_open(file, idedisk_st_proc_show, PDE(inode)->data);
}

static const struct file_operations idedisk_st_proc_fops = {
	.owner		= THIS_MODULE,
	.open		= idedisk_st_proc_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
};

ide_proc_entry_t ide_disk_proc[] = {
	{ "cache",	  S_IFREG|S_IRUGO, &idedisk_cache_proc_fops	},
	{ "capacity",	  S_IFREG|S_IRUGO, &idedisk_capacity_proc_fops	},
	{ "geometry",	  S_IFREG|S_IRUGO, &ide_geometry_proc_fops	},
	{ "smart_values", S_IFREG|S_IRUSR, &idedisk_sv_proc_fops	},
	{ "smart_thresholds", S_IFREG|S_IRUSR, &idedisk_st_proc_fops	},
	{}
};

ide_devset_rw_field(bios_cyl, bios_cyl);
ide_devset_rw_field(bios_head, bios_head);
ide_devset_rw_field(bios_sect, bios_sect);
ide_devset_rw_field(failures, failures);
ide_devset_rw_field(lun, lun);
ide_devset_rw_field(max_failures, max_failures);

const struct ide_proc_devset ide_disk_settings[] = {
	IDE_PROC_DEVSET(acoustic,	0,   254),
	IDE_PROC_DEVSET(address,	0,     2),
	IDE_PROC_DEVSET(bios_cyl,	0, 65535),
	IDE_PROC_DEVSET(bios_head,	0,   255),
	IDE_PROC_DEVSET(bios_sect,	0,    63),
	IDE_PROC_DEVSET(failures,	0, 65535),
	IDE_PROC_DEVSET(lun,		0,     7),
	IDE_PROC_DEVSET(max_failures,	0, 65535),
	IDE_PROC_DEVSET(multcount,	0,    16),
	IDE_PROC_DEVSET(nowerr,		0,     1),
	IDE_PROC_DEVSET(wcache,		0,     1),
	{ NULL },
};