Bartlomiej Zolnierkiewicz | 06b8951 | 2008-10-13 21:39:45 +0200 | [diff] [blame] | 1 | #include <linux/kernel.h> |
| 2 | #include <linux/ide.h> |
| 3 | #include <linux/hdreg.h> |
| 4 | |
| 5 | #include "ide-disk.h" |
| 6 | |
| 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 | |
| 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 | |
| 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 | |
| 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_disk_capacity(drive)); |
| 60 | |
| 61 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); |
| 62 | } |
| 63 | |
| 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 | |
| 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 | |
| 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 | { 0 }, |
| 129 | }; |