1 // SPDX-License-Identifier: GPL-2.0-only
3  *  Copyright (C) 1997-1998	Mark Lord
12  * Drive/Driver settings can be retrieved by reading the drive's
37 	ide_hwif_t	*hwif = (ide_hwif_t *) m->private;  in ide_imodel_proc_show()
40 	switch (hwif->chipset) {  in ide_imodel_proc_show()
50 	case ide_pmac:		name = "mac-io";	break;  in ide_imodel_proc_show()
62 	ide_hwif_t	*hwif = (ide_hwif_t *) m->private;  in ide_mate_proc_show()
64 	if (hwif && hwif->mate)  in ide_mate_proc_show()
65 		seq_printf(m, "%s\n", hwif->mate->name);  in ide_mate_proc_show()
73 	ide_hwif_t	*hwif = (ide_hwif_t *) m->private;  in ide_channel_proc_show()
75 	seq_printf(m, "%c\n", hwif->channel ? '1' : '0');  in ide_channel_proc_show()
81 	ide_drive_t *drive = (ide_drive_t *)m->private;  in ide_identify_proc_show()  local
84 	if (!drive) {  in ide_identify_proc_show()
91 		return -ENOMEM;  in ide_identify_proc_show()
92 	if (taskfile_lib_get_identify(drive, buf) == 0) {  in ide_identify_proc_show()
94 		int i;  in ide_identify_proc_show()  local
96 		for (i = 0; i < SECTOR_SIZE / 2; i++) {  in ide_identify_proc_show()
97 			seq_printf(m, "%04x%c", le16_to_cpu(val[i]),  in ide_identify_proc_show()
98 					(i % 8) == 7 ? '\n' : ' ');  in ide_identify_proc_show()
107  *	ide_find_setting	-	find a specific setting
120 	while (st->name) {  in ide_find_setting()
121 		if (strcmp(st->name, name) == 0)  in ide_find_setting()
125 	return st->name ? st : NULL;  in ide_find_setting()
129  *	ide_read_setting	-	read an IDE setting
130  *	@drive: drive to read from
131  *	@setting: drive setting
133  *	Read a drive setting and return the value. The caller
137  *	so an error -EINVAL and true return of the same value cannot
141 static int ide_read_setting(ide_drive_t *drive,  in ide_read_setting()  argument
144 	const struct ide_devset *ds = setting->setting;  in ide_read_setting()
145 	int val = -EINVAL;  in ide_read_setting()
147 	if (ds->get)  in ide_read_setting()
148 		val = ds->get(drive);  in ide_read_setting()
154  *	ide_write_setting	-	read an IDE setting
155  *	@drive: drive to read from
156  *	@setting: drive setting
159  *	Write a drive setting if it is possible. The caller
163  *	so an error -EINVAL and true return of the same value cannot
171 static int ide_write_setting(ide_drive_t *drive,  in ide_write_setting()  argument
174 	const struct ide_devset *ds = setting->setting;  in ide_write_setting()
177 		return -EACCES;  in ide_write_setting()
178 	if (!ds->set)  in ide_write_setting()
179 		return -EPERM;  in ide_write_setting()
180 	if ((ds->flags & DS_SYNC)  in ide_write_setting()
181 	    && (val < setting->min || val > setting->max))  in ide_write_setting()
182 		return -EINVAL;  in ide_write_setting()
183 	return ide_devset_execute(drive, ds, val);  in ide_write_setting()
188 static int set_xfer_rate (ide_drive_t *drive, int arg)  in set_xfer_rate()  argument
193 		return -EINVAL;  in set_xfer_rate()
203 	return ide_no_data_taskfile(drive, &cmd);  in set_xfer_rate()
234 	ide_drive_t	*drive = (ide_drive_t *) m->private;  in ide_settings_proc_show()  local
241 	d = drive->settings;  in ide_settings_proc_show()
243 	seq_printf(m, "----\t\t\t-----\t\t---\t\t---\t\t----\n");  in ide_settings_proc_show()
244 	while (g->name || (d && d->name)) {  in ide_settings_proc_show()
246 		if (g->name && d && d->name) {  in ide_settings_proc_show()
247 			if (strcmp(d->name, g->name) < 0)  in ide_settings_proc_show()
251 		} else if (d && d->name) {  in ide_settings_proc_show()
255 		mul_factor = setting->mulf ? setting->mulf(drive) : 1;  in ide_settings_proc_show()
256 		div_factor = setting->divf ? setting->divf(drive) : 1;  in ide_settings_proc_show()
257 		seq_printf(m, "%-24s", setting->name);  in ide_settings_proc_show()
258 		rc = ide_read_setting(drive, setting);  in ide_settings_proc_show()
260 			seq_printf(m, "%-16d", rc * mul_factor / div_factor);  in ide_settings_proc_show()
262 			seq_printf(m, "%-16s", "write-only");  in ide_settings_proc_show()
263 …seq_printf(m, "%-16d%-16d", (setting->min * mul_factor + div_factor - 1) / div_factor, setting->ma…  in ide_settings_proc_show()
264 		ds = setting->setting;  in ide_settings_proc_show()
265 		if (ds->get)  in ide_settings_proc_show()
267 		if (ds->set)  in ide_settings_proc_show()
285 	ide_drive_t	*drive = PDE_DATA(file_inode(file));  in ide_settings_proc_write()  local
294 		return -EACCES;  in ide_settings_proc_write()
299 		return -EINVAL;  in ide_settings_proc_write()
303 		return -ENOMEM;  in ide_settings_proc_write()
307 		return -EFAULT;  in ide_settings_proc_write()
316 		--count;  in ide_settings_proc_write()
331 				--n;  in ide_settings_proc_write()
336 			if (p - q > MAX_LEN)  in ide_settings_proc_write()
338 			memcpy(name, q, p - q);  in ide_settings_proc_write()
339 			name[p - q] = 0;  in ide_settings_proc_write()
342 				--n;  in ide_settings_proc_write()
348 			n -= q - p;  in ide_settings_proc_write()
353 				--n;  in ide_settings_proc_write()
361 				if (drive->settings)  in ide_settings_proc_write()
362 					setting = ide_find_setting(drive->settings, name);  in ide_settings_proc_write()
369 				mul_factor = setting->mulf ? setting->mulf(drive) : 1;  in ide_settings_proc_write()
370 				div_factor = setting->divf ? setting->divf(drive) : 1;  in ide_settings_proc_write()
371 				ide_write_setting(drive, setting, val * div_factor / mul_factor);  in ide_settings_proc_write()
381 	return -EINVAL;  in ide_settings_proc_write()
401 	ide_drive_t	*drive = (ide_drive_t *) m->private;  in ide_geometry_proc_show()  local
404 			drive->cyl, drive->head, drive->sect);  in ide_geometry_proc_show()
406 			drive->bios_cyl, drive->bios_head, drive->bios_sect);  in ide_geometry_proc_show()
413 	ide_drive_t	*drive = (ide_drive_t *) seq->private;  in ide_dmodel_proc_show()  local
414 	char		*m = (char *)&drive->id[ATA_ID_PROD];  in ide_dmodel_proc_show()
422 	ide_drive_t		*drive = (ide_drive_t *)m->private;  in ide_driver_proc_show()  local
423 	struct device		*dev = &drive->gendev;  in ide_driver_proc_show()
426 	if (dev->driver) {  in ide_driver_proc_show()
427 		ide_drv = to_ide_driver(dev->driver);  in ide_driver_proc_show()
429 				dev->driver->name, ide_drv->version);  in ide_driver_proc_show()
431 		seq_printf(m, "ide-default version 0.9.newide\n");  in ide_driver_proc_show()
437 	ide_drive_t	*drive = (ide_drive_t *) m->private;  in ide_media_proc_show()  local
440 	switch (drive->media) {  in ide_media_proc_show()
479 	while (p->name != NULL) {  in ide_add_proc_entries()
480 		ent = proc_create_single_data(p->name, p->mode, dir, p->show, data);  in ide_add_proc_entries()
490 	while (p->name != NULL) {  in ide_remove_proc_entries()
491 		remove_proc_entry(p->name, dir);  in ide_remove_proc_entries()
496 void ide_proc_register_driver(ide_drive_t *drive, struct ide_driver *driver)  in ide_proc_register_driver()  argument
499 	drive->settings = driver->proc_devsets(drive);  in ide_proc_register_driver()
502 	ide_add_proc_entries(drive->proc, driver->proc_entries(drive), drive);  in ide_proc_register_driver()
508  *	ide_proc_unregister_driver	-	remove driver specific data
509  *	@drive: drive
513  *	for a given drive.
518 void ide_proc_unregister_driver(ide_drive_t *drive, struct ide_driver *driver)  in ide_proc_unregister_driver()  argument
520 	ide_remove_proc_entries(drive->proc, driver->proc_entries(drive));  in ide_proc_unregister_driver()
527 	drive->settings = NULL;  in ide_proc_unregister_driver()
535 	struct proc_dir_entry *parent = hwif->proc;  in ide_proc_port_register_devices()
536 	ide_drive_t *drive;  in ide_proc_port_register_devices()  local
538 	int i;  in ide_proc_port_register_devices()  local
540 	ide_port_for_each_dev(i, drive, hwif) {  in ide_proc_port_register_devices()
541 		if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)  in ide_proc_port_register_devices()
544 		drive->proc = proc_mkdir(drive->name, parent);  in ide_proc_port_register_devices()
545 		if (drive->proc) {  in ide_proc_port_register_devices()
546 			ide_add_proc_entries(drive->proc, generic_drive_entries, drive);  in ide_proc_port_register_devices()
548 					drive->proc, &ide_settings_proc_ops,  in ide_proc_port_register_devices()
549 					drive);  in ide_proc_port_register_devices()
551 		sprintf(name, "ide%d/%s", (drive->name[2]-'a')/2, drive->name);  in ide_proc_port_register_devices()
552 		ent = proc_symlink(drive->name, proc_ide_root, name);  in ide_proc_port_register_devices()
557 void ide_proc_unregister_device(ide_drive_t *drive)  in ide_proc_unregister_device()  argument
559 	if (drive->proc) {  in ide_proc_unregister_device()
560 		remove_proc_entry("settings", drive->proc);  in ide_proc_unregister_device()
561 		ide_remove_proc_entries(drive->proc, generic_drive_entries);  in ide_proc_unregister_device()
562 		remove_proc_entry(drive->name, proc_ide_root);  in ide_proc_unregister_device()
563 		remove_proc_entry(drive->name, drive->hwif->proc);  in ide_proc_unregister_device()
564 		drive->proc = NULL;  in ide_proc_unregister_device()
577 	if (!hwif->proc) {  in ide_proc_register_port()
578 		hwif->proc = proc_mkdir(hwif->name, proc_ide_root);  in ide_proc_register_port()
580 		if (!hwif->proc)  in ide_proc_register_port()
583 		ide_add_proc_entries(hwif->proc, hwif_entries, hwif);  in ide_proc_register_port()
589 	if (hwif->proc) {  in ide_proc_unregister_port()
590 		ide_remove_proc_entries(hwif->proc, hwif_entries);  in ide_proc_unregister_port()
591 		remove_proc_entry(hwif->name, proc_ide_root);  in ide_proc_unregister_port()
592 		hwif->proc = NULL;  in ide_proc_unregister_port()
601 	seq_printf(s, "%s version %s\n", drv->name, ide_drv->version);  in proc_print_driver()