#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 },};