diff options
Diffstat (limited to 'drivers/ide/ide-disk_proc.c')
| -rw-r--r-- | drivers/ide/ide-disk_proc.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/ide/ide-disk_proc.c b/drivers/ide/ide-disk_proc.c new file mode 100644 index 00000000000..4724976afe7 --- /dev/null +++ b/drivers/ide/ide-disk_proc.c @@ -0,0 +1,129 @@ +#include <linux/kernel.h> +#include <linux/ide.h> +#include <linux/hdreg.h> + +#include "ide-disk.h" + +static int smart_enable(ide_drive_t *drive) +{ + ide_task_t args; + struct ide_taskfile *tf = &args.tf; + + memset(&args, 0, sizeof(ide_task_t)); + tf->feature = ATA_SMART_ENABLE; + tf->lbam = ATA_SMART_LBAM_PASS; + tf->lbah = ATA_SMART_LBAH_PASS; + tf->command = ATA_CMD_SMART; + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; + return ide_no_data_taskfile(drive, &args); +} + +static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd) +{ + ide_task_t args; + struct ide_taskfile *tf = &args.tf; + + memset(&args, 0, sizeof(ide_task_t)); + tf->feature = sub_cmd; + tf->nsect = 0x01; + tf->lbam = ATA_SMART_LBAM_PASS; + tf->lbah = ATA_SMART_LBAH_PASS; + tf->command = ATA_CMD_SMART; + args.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; + args.data_phase = TASKFILE_IN; + (void) smart_enable(drive); + return ide_raw_taskfile(drive, &args, buf, 1); +} + +static int proc_idedisk_read_cache + (char *page, char **start, off_t off, int count, int *eof, void *data) +{ + ide_drive_t *drive = (ide_drive_t *) data; + char *out = page; + int len; + + if (drive->dev_flags & IDE_DFLAG_ID_READ) + len = sprintf(out, "%i\n", drive->id[ATA_ID_BUF_SIZE] / 2); + else + len = sprintf(out, "(none)\n"); + + PROC_IDE_READ_RETURN(page, start, off, count, eof, len); +} + +static int proc_idedisk_read_capacity + (char *page, char **start, off_t off, int count, int *eof, void *data) +{ + ide_drive_t*drive = (ide_drive_t *)data; + int len; + + len = sprintf(page, "%llu\n", (long long)ide_disk_capacity(drive)); + + PROC_IDE_READ_RETURN(page, start, off, count, eof, len); +} + +static int proc_idedisk_read_smart(char *page, char **start, off_t off, + int count, int *eof, void *data, u8 sub_cmd) +{ + ide_drive_t *drive = (ide_drive_t *)data; + int len = 0, i = 0; + + if (get_smart_data(drive, page, sub_cmd) == 0) { + unsigned short *val = (unsigned short *) page; + char *out = (char *)val + SECTOR_SIZE; + + page = out; + do { + out += sprintf(out, "%04x%c", le16_to_cpu(*val), + (++i & 7) ? ' ' : '\n'); + val += 1; + } while (i < SECTOR_SIZE / 2); + len = out - page; + } + + PROC_IDE_READ_RETURN(page, start, off, count, eof, len); +} + +static int proc_idedisk_read_sv + (char *page, char **start, off_t off, int count, int *eof, void *data) +{ + return proc_idedisk_read_smart(page, start, off, count, eof, data, + ATA_SMART_READ_VALUES); +} + +static int proc_idedisk_read_st + (char *page, char **start, off_t off, int count, int *eof, void *data) +{ + return proc_idedisk_read_smart(page, start, off, count, eof, data, + ATA_SMART_READ_THRESHOLDS); +} + +ide_proc_entry_t ide_disk_proc[] = { + { "cache", S_IFREG|S_IRUGO, proc_idedisk_read_cache, NULL }, + { "capacity", S_IFREG|S_IRUGO, proc_idedisk_read_capacity, NULL }, + { "geometry", S_IFREG|S_IRUGO, proc_ide_read_geometry, NULL }, + { "smart_values", S_IFREG|S_IRUSR, proc_idedisk_read_sv, NULL }, + { "smart_thresholds", S_IFREG|S_IRUSR, proc_idedisk_read_st, NULL }, + { NULL, 0, NULL, NULL } +}; + +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), + { 0 }, +}; |