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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
06b89518 BZ |
2 | #include <linux/kernel.h> |
3 | #include <linux/ide.h> | |
5a0e3ad6 | 4 | #include <linux/slab.h> |
38789fda | 5 | #include <linux/export.h> |
6d703a81 | 6 | #include <linux/seq_file.h> |
06b89518 BZ |
7 | |
8 | #include "ide-disk.h" | |
9 | ||
10 | static int smart_enable(ide_drive_t *drive) | |
11 | { | |
22aa4b32 BZ |
12 | struct ide_cmd cmd; |
13 | struct ide_taskfile *tf = &cmd.tf; | |
06b89518 | 14 | |
22aa4b32 | 15 | memset(&cmd, 0, sizeof(cmd)); |
06b89518 BZ |
16 | tf->feature = ATA_SMART_ENABLE; |
17 | tf->lbam = ATA_SMART_LBAM_PASS; | |
18 | tf->lbah = ATA_SMART_LBAH_PASS; | |
19 | tf->command = ATA_CMD_SMART; | |
60f85019 SS |
20 | cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; |
21 | cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; | |
22aa4b32 BZ |
22 | |
23 | return ide_no_data_taskfile(drive, &cmd); | |
06b89518 BZ |
24 | } |
25 | ||
26 | static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd) | |
27 | { | |
22aa4b32 BZ |
28 | struct ide_cmd cmd; |
29 | struct ide_taskfile *tf = &cmd.tf; | |
06b89518 | 30 | |
22aa4b32 | 31 | memset(&cmd, 0, sizeof(cmd)); |
06b89518 BZ |
32 | tf->feature = sub_cmd; |
33 | tf->nsect = 0x01; | |
34 | tf->lbam = ATA_SMART_LBAM_PASS; | |
35 | tf->lbah = ATA_SMART_LBAH_PASS; | |
36 | tf->command = ATA_CMD_SMART; | |
60f85019 SS |
37 | cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; |
38 | cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; | |
0dfb991c | 39 | cmd.protocol = ATA_PROT_PIO; |
39375853 | 40 | |
22aa4b32 | 41 | return ide_raw_taskfile(drive, &cmd, buf, 1); |
06b89518 BZ |
42 | } |
43 | ||
6d703a81 | 44 | static int idedisk_cache_proc_show(struct seq_file *m, void *v) |
06b89518 | 45 | { |
6d703a81 | 46 | ide_drive_t *drive = (ide_drive_t *) m->private; |
06b89518 BZ |
47 | |
48 | if (drive->dev_flags & IDE_DFLAG_ID_READ) | |
6d703a81 | 49 | seq_printf(m, "%i\n", drive->id[ATA_ID_BUF_SIZE] / 2); |
06b89518 | 50 | else |
6d703a81 AD |
51 | seq_printf(m, "(none)\n"); |
52 | return 0; | |
53 | } | |
06b89518 | 54 | |
6d703a81 AD |
55 | static int idedisk_cache_proc_open(struct inode *inode, struct file *file) |
56 | { | |
d9dda78b | 57 | return single_open(file, idedisk_cache_proc_show, PDE_DATA(inode)); |
06b89518 BZ |
58 | } |
59 | ||
6d703a81 AD |
60 | static const struct file_operations idedisk_cache_proc_fops = { |
61 | .owner = THIS_MODULE, | |
62 | .open = idedisk_cache_proc_open, | |
63 | .read = seq_read, | |
64 | .llseek = seq_lseek, | |
65 | .release = single_release, | |
66 | }; | |
67 | ||
68 | static int idedisk_capacity_proc_show(struct seq_file *m, void *v) | |
06b89518 | 69 | { |
6d703a81 | 70 | ide_drive_t*drive = (ide_drive_t *)m->private; |
06b89518 | 71 | |
6d703a81 AD |
72 | seq_printf(m, "%llu\n", (long long)ide_gd_capacity(drive)); |
73 | return 0; | |
74 | } | |
06b89518 | 75 | |
6d703a81 AD |
76 | static int idedisk_capacity_proc_open(struct inode *inode, struct file *file) |
77 | { | |
d9dda78b | 78 | return single_open(file, idedisk_capacity_proc_show, PDE_DATA(inode)); |
06b89518 BZ |
79 | } |
80 | ||
6d703a81 AD |
81 | static const struct file_operations idedisk_capacity_proc_fops = { |
82 | .owner = THIS_MODULE, | |
83 | .open = idedisk_capacity_proc_open, | |
84 | .read = seq_read, | |
85 | .llseek = seq_lseek, | |
86 | .release = single_release, | |
87 | }; | |
88 | ||
89 | static int __idedisk_proc_show(struct seq_file *m, ide_drive_t *drive, u8 sub_cmd) | |
06b89518 | 90 | { |
6d703a81 AD |
91 | u8 *buf; |
92 | ||
93 | buf = kmalloc(SECTOR_SIZE, GFP_KERNEL); | |
94 | if (!buf) | |
95 | return -ENOMEM; | |
06b89518 | 96 | |
39375853 BZ |
97 | (void)smart_enable(drive); |
98 | ||
6d703a81 AD |
99 | if (get_smart_data(drive, buf, sub_cmd) == 0) { |
100 | __le16 *val = (__le16 *)buf; | |
101 | int i; | |
102 | ||
103 | for (i = 0; i < SECTOR_SIZE / 2; i++) { | |
104 | seq_printf(m, "%04x%c", le16_to_cpu(val[i]), | |
105 | (i % 8) == 7 ? '\n' : ' '); | |
106 | } | |
06b89518 | 107 | } |
6d703a81 AD |
108 | kfree(buf); |
109 | return 0; | |
110 | } | |
06b89518 | 111 | |
6d703a81 AD |
112 | static int idedisk_sv_proc_show(struct seq_file *m, void *v) |
113 | { | |
114 | return __idedisk_proc_show(m, m->private, ATA_SMART_READ_VALUES); | |
06b89518 BZ |
115 | } |
116 | ||
6d703a81 | 117 | static int idedisk_sv_proc_open(struct inode *inode, struct file *file) |
06b89518 | 118 | { |
d9dda78b | 119 | return single_open(file, idedisk_sv_proc_show, PDE_DATA(inode)); |
06b89518 BZ |
120 | } |
121 | ||
6d703a81 AD |
122 | static const struct file_operations idedisk_sv_proc_fops = { |
123 | .owner = THIS_MODULE, | |
124 | .open = idedisk_sv_proc_open, | |
125 | .read = seq_read, | |
126 | .llseek = seq_lseek, | |
127 | .release = single_release, | |
128 | }; | |
129 | ||
130 | static int idedisk_st_proc_show(struct seq_file *m, void *v) | |
06b89518 | 131 | { |
6d703a81 | 132 | return __idedisk_proc_show(m, m->private, ATA_SMART_READ_THRESHOLDS); |
06b89518 BZ |
133 | } |
134 | ||
6d703a81 AD |
135 | static int idedisk_st_proc_open(struct inode *inode, struct file *file) |
136 | { | |
d9dda78b | 137 | return single_open(file, idedisk_st_proc_show, PDE_DATA(inode)); |
6d703a81 AD |
138 | } |
139 | ||
140 | static const struct file_operations idedisk_st_proc_fops = { | |
141 | .owner = THIS_MODULE, | |
142 | .open = idedisk_st_proc_open, | |
143 | .read = seq_read, | |
144 | .llseek = seq_lseek, | |
145 | .release = single_release, | |
146 | }; | |
147 | ||
06b89518 | 148 | ide_proc_entry_t ide_disk_proc[] = { |
6d703a81 AD |
149 | { "cache", S_IFREG|S_IRUGO, &idedisk_cache_proc_fops }, |
150 | { "capacity", S_IFREG|S_IRUGO, &idedisk_capacity_proc_fops }, | |
151 | { "geometry", S_IFREG|S_IRUGO, &ide_geometry_proc_fops }, | |
152 | { "smart_values", S_IFREG|S_IRUSR, &idedisk_sv_proc_fops }, | |
153 | { "smart_thresholds", S_IFREG|S_IRUSR, &idedisk_st_proc_fops }, | |
154 | {} | |
06b89518 BZ |
155 | }; |
156 | ||
157 | ide_devset_rw_field(bios_cyl, bios_cyl); | |
158 | ide_devset_rw_field(bios_head, bios_head); | |
159 | ide_devset_rw_field(bios_sect, bios_sect); | |
160 | ide_devset_rw_field(failures, failures); | |
161 | ide_devset_rw_field(lun, lun); | |
162 | ide_devset_rw_field(max_failures, max_failures); | |
163 | ||
164 | const struct ide_proc_devset ide_disk_settings[] = { | |
165 | IDE_PROC_DEVSET(acoustic, 0, 254), | |
166 | IDE_PROC_DEVSET(address, 0, 2), | |
167 | IDE_PROC_DEVSET(bios_cyl, 0, 65535), | |
168 | IDE_PROC_DEVSET(bios_head, 0, 255), | |
169 | IDE_PROC_DEVSET(bios_sect, 0, 63), | |
170 | IDE_PROC_DEVSET(failures, 0, 65535), | |
171 | IDE_PROC_DEVSET(lun, 0, 7), | |
172 | IDE_PROC_DEVSET(max_failures, 0, 65535), | |
173 | IDE_PROC_DEVSET(multcount, 0, 16), | |
174 | IDE_PROC_DEVSET(nowerr, 0, 1), | |
175 | IDE_PROC_DEVSET(wcache, 0, 1), | |
71bfc7a7 | 176 | { NULL }, |
06b89518 | 177 | }; |