[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / ide / ide-disk_proc.c

#include <linux/kernel.h>
#include <linux/ide.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.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_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.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
	cmd.protocol = ATA_PROT_PIO;

	return ide_raw_taskfile(drive, &cmd, 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_gd_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;

	(void)smart_enable(drive);

	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),
	{ NULL },
};
Commit	Line	Data
06b89518 BZ	1	#include <linux/kernel.h>
06b89518 BZ	2	#include <linux/ide.h>
06b89518 BZ	3
	4	#include "ide-disk.h"
	5
	6	static int smart_enable(ide_drive_t *drive)
	7	{
22aa4b32 BZ	8	struct ide_cmd cmd;
22aa4b32 BZ	9	struct ide_taskfile *tf = &cmd.tf;
06b89518	10
22aa4b32	11	memset(&cmd, 0, sizeof(cmd));
06b89518 BZ	12	tf->feature = ATA_SMART_ENABLE;
	13	tf->lbam = ATA_SMART_LBAM_PASS;
	14	tf->lbah = ATA_SMART_LBAH_PASS;
	15	tf->command = ATA_CMD_SMART;
22aa4b32 BZ	16	cmd.tf_flags = IDE_TFLAG_TF \| IDE_TFLAG_DEVICE;
	17
	18	return ide_no_data_taskfile(drive, &cmd);
06b89518 BZ	19	}
	20
	21	static int get_smart_data(ide_drive_t drive, u8 buf, u8 sub_cmd)
	22	{
22aa4b32 BZ	23	struct ide_cmd cmd;
22aa4b32 BZ	24	struct ide_taskfile *tf = &cmd.tf;
06b89518	25
22aa4b32	26	memset(&cmd, 0, sizeof(cmd));
06b89518 BZ	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;
0dfb991c BZ	32	cmd.tf_flags = IDE_TFLAG_TF \| IDE_TFLAG_DEVICE;
0dfb991c BZ	33	cmd.protocol = ATA_PROT_PIO;
39375853	34
22aa4b32	35	return ide_raw_taskfile(drive, &cmd, buf, 1);
06b89518 BZ	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_tdrive = (ide_drive_t )data;
	57	int len;
	58
5fef0e5c	59	len = sprintf(page, "%llu\n", (long long)ide_gd_capacity(drive));
06b89518 BZ	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
39375853 BZ	70	(void)smart_enable(drive);
39375853 BZ	71
06b89518 BZ	72	if (get_smart_data(drive, page, sub_cmd) == 0) {
	73	unsigned short val = (unsigned short ) page;
	74	char out = (char )val + SECTOR_SIZE;
	75
	76	page = out;
	77	do {
	78	out += sprintf(out, "%04x%c", le16_to_cpu(*val),
	79	(++i & 7) ? ' ' : '\n');
	80	val += 1;
	81	} while (i < SECTOR_SIZE / 2);
	82	len = out - page;
	83	}
	84
	85	PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
	86	}
	87
	88	static int proc_idedisk_read_sv
	89	(char page, char start, off_t off, int count, int eof, void *data)
	90	{
	91	return proc_idedisk_read_smart(page, start, off, count, eof, data,
	92	ATA_SMART_READ_VALUES);
	93	}
	94
	95	static int proc_idedisk_read_st
	96	(char page, char start, off_t off, int count, int eof, void *data)
	97	{
	98	return proc_idedisk_read_smart(page, start, off, count, eof, data,
	99	ATA_SMART_READ_THRESHOLDS);
	100	}
	101
	102	ide_proc_entry_t ide_disk_proc[] = {
	103	{ "cache", S_IFREG\|S_IRUGO, proc_idedisk_read_cache, NULL },
	104	{ "capacity", S_IFREG\|S_IRUGO, proc_idedisk_read_capacity, NULL },
	105	{ "geometry", S_IFREG\|S_IRUGO, proc_ide_read_geometry, NULL },
	106	{ "smart_values", S_IFREG\|S_IRUSR, proc_idedisk_read_sv, NULL },
	107	{ "smart_thresholds", S_IFREG\|S_IRUSR, proc_idedisk_read_st, NULL },
	108	{ NULL, 0, NULL, NULL }
	109	};
	110
	111	ide_devset_rw_field(bios_cyl, bios_cyl);
	112	ide_devset_rw_field(bios_head, bios_head);
	113	ide_devset_rw_field(bios_sect, bios_sect);
	114	ide_devset_rw_field(failures, failures);
	115	ide_devset_rw_field(lun, lun);
	116	ide_devset_rw_field(max_failures, max_failures);
	117
	118	const struct ide_proc_devset ide_disk_settings[] = {
	119	IDE_PROC_DEVSET(acoustic, 0, 254),
	120	IDE_PROC_DEVSET(address, 0, 2),
	121	IDE_PROC_DEVSET(bios_cyl, 0, 65535),
	122	IDE_PROC_DEVSET(bios_head, 0, 255),
	123	IDE_PROC_DEVSET(bios_sect, 0, 63),
	124	IDE_PROC_DEVSET(failures, 0, 65535),
	125	IDE_PROC_DEVSET(lun, 0, 7),
	126	IDE_PROC_DEVSET(max_failures, 0, 65535),
	127	IDE_PROC_DEVSET(multcount, 0, 16),
	128	IDE_PROC_DEVSET(nowerr, 0, 1),
	129	IDE_PROC_DEVSET(wcache, 0, 1),
71bfc7a7	130	{ NULL },
06b89518	131	};