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