1 #include <linux/kernel.h>
2 #include <linux/ide.h>
3 #include <linux/hdreg.h>
4
5 #include "ide-disk.h"
6
smart_enable(ide_drive_t * drive)7 static int smart_enable(ide_drive_t *drive)
8 {
9 ide_task_t args;
10 struct ide_taskfile *tf = &args.tf;
11
12 memset(&args, 0, sizeof(ide_task_t));
13 tf->feature = ATA_SMART_ENABLE;
14 tf->lbam = ATA_SMART_LBAM_PASS;
15 tf->lbah = ATA_SMART_LBAH_PASS;
16 tf->command = ATA_CMD_SMART;
17 args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
18 return ide_no_data_taskfile(drive, &args);
19 }
20
get_smart_data(ide_drive_t * drive,u8 * buf,u8 sub_cmd)21 static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd)
22 {
23 ide_task_t args;
24 struct ide_taskfile *tf = &args.tf;
25
26 memset(&args, 0, sizeof(ide_task_t));
27 tf->feature = sub_cmd;
28 tf->nsect = 0x01;
29 tf->lbam = ATA_SMART_LBAM_PASS;
30 tf->lbah = ATA_SMART_LBAH_PASS;
31 tf->command = ATA_CMD_SMART;
32 args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
33 args.data_phase = TASKFILE_IN;
34 (void) smart_enable(drive);
35 return ide_raw_taskfile(drive, &args, buf, 1);
36 }
37
proc_idedisk_read_cache(char * page,char ** start,off_t off,int count,int * eof,void * data)38 static int proc_idedisk_read_cache
39 (char *page, char **start, off_t off, int count, int *eof, void *data)
40 {
41 ide_drive_t *drive = (ide_drive_t *) data;
42 char *out = page;
43 int len;
44
45 if (drive->dev_flags & IDE_DFLAG_ID_READ)
46 len = sprintf(out, "%i\n", drive->id[ATA_ID_BUF_SIZE] / 2);
47 else
48 len = sprintf(out, "(none)\n");
49
50 PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
51 }
52
proc_idedisk_read_capacity(char * page,char ** start,off_t off,int count,int * eof,void * data)53 static int proc_idedisk_read_capacity
54 (char *page, char **start, off_t off, int count, int *eof, void *data)
55 {
56 ide_drive_t*drive = (ide_drive_t *)data;
57 int len;
58
59 len = sprintf(page, "%llu\n", (long long)ide_gd_capacity(drive));
60
61 PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
62 }
63
proc_idedisk_read_smart(char * page,char ** start,off_t off,int count,int * eof,void * data,u8 sub_cmd)64 static int proc_idedisk_read_smart(char *page, char **start, off_t off,
65 int count, int *eof, void *data, u8 sub_cmd)
66 {
67 ide_drive_t *drive = (ide_drive_t *)data;
68 int len = 0, i = 0;
69
70 if (get_smart_data(drive, page, sub_cmd) == 0) {
71 unsigned short *val = (unsigned short *) page;
72 char *out = (char *)val + SECTOR_SIZE;
73
74 page = out;
75 do {
76 out += sprintf(out, "%04x%c", le16_to_cpu(*val),
77 (++i & 7) ? ' ' : '\n');
78 val += 1;
79 } while (i < SECTOR_SIZE / 2);
80 len = out - page;
81 }
82
83 PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
84 }
85
proc_idedisk_read_sv(char * page,char ** start,off_t off,int count,int * eof,void * data)86 static int proc_idedisk_read_sv
87 (char *page, char **start, off_t off, int count, int *eof, void *data)
88 {
89 return proc_idedisk_read_smart(page, start, off, count, eof, data,
90 ATA_SMART_READ_VALUES);
91 }
92
proc_idedisk_read_st(char * page,char ** start,off_t off,int count,int * eof,void * data)93 static int proc_idedisk_read_st
94 (char *page, char **start, off_t off, int count, int *eof, void *data)
95 {
96 return proc_idedisk_read_smart(page, start, off, count, eof, data,
97 ATA_SMART_READ_THRESHOLDS);
98 }
99
100 ide_proc_entry_t ide_disk_proc[] = {
101 { "cache", S_IFREG|S_IRUGO, proc_idedisk_read_cache, NULL },
102 { "capacity", S_IFREG|S_IRUGO, proc_idedisk_read_capacity, NULL },
103 { "geometry", S_IFREG|S_IRUGO, proc_ide_read_geometry, NULL },
104 { "smart_values", S_IFREG|S_IRUSR, proc_idedisk_read_sv, NULL },
105 { "smart_thresholds", S_IFREG|S_IRUSR, proc_idedisk_read_st, NULL },
106 { NULL, 0, NULL, NULL }
107 };
108
109 ide_devset_rw_field(bios_cyl, bios_cyl);
110 ide_devset_rw_field(bios_head, bios_head);
111 ide_devset_rw_field(bios_sect, bios_sect);
112 ide_devset_rw_field(failures, failures);
113 ide_devset_rw_field(lun, lun);
114 ide_devset_rw_field(max_failures, max_failures);
115
116 const struct ide_proc_devset ide_disk_settings[] = {
117 IDE_PROC_DEVSET(acoustic, 0, 254),
118 IDE_PROC_DEVSET(address, 0, 2),
119 IDE_PROC_DEVSET(bios_cyl, 0, 65535),
120 IDE_PROC_DEVSET(bios_head, 0, 255),
121 IDE_PROC_DEVSET(bios_sect, 0, 63),
122 IDE_PROC_DEVSET(failures, 0, 65535),
123 IDE_PROC_DEVSET(lun, 0, 7),
124 IDE_PROC_DEVSET(max_failures, 0, 65535),
125 IDE_PROC_DEVSET(multcount, 0, 16),
126 IDE_PROC_DEVSET(nowerr, 0, 1),
127 IDE_PROC_DEVSET(wcache, 0, 1),
128 { NULL },
129 };
130