diff options
Diffstat (limited to 'kernel/drivers/ide/ide-disk_proc.c')
| -rw-r--r-- | kernel/drivers/ide/ide-disk_proc.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/kernel/drivers/ide/ide-disk_proc.c b/kernel/drivers/ide/ide-disk_proc.c new file mode 100644 index 000000000..0d1fae6cb --- /dev/null +++ b/kernel/drivers/ide/ide-disk_proc.c @@ -0,0 +1,176 @@ +#include <linux/kernel.h> +#include <linux/ide.h> +#include <linux/slab.h> +#include <linux/export.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_DATA(inode)); +} + +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_DATA(inode)); +} + +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_DATA(inode)); +} + +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_DATA(inode)); +} + +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 }, +}; |