/* * Copyright (C) 1997-1998 Mark Lord * Copyright (C) 2003 Red Hat * * Some code was moved here from ide.c, see it for original copyrights. */ /* * This is the /proc/ide/ filesystem implementation. * * Drive/Driver settings can be retrieved by reading the drive's * "settings" files. e.g. "cat /proc/ide0/hda/settings" * To write a new value "val" into a specific setting "name", use: * echo "name:val" >/proc/ide/ide0/hda/settings */ #include <linux/module.h> #include <asm/uaccess.h>#include <linux/errno.h>#include <linux/proc_fs.h>#include <linux/stat.h>#include <linux/mm.h>#include <linux/pci.h>#include <linux/ctype.h>#include <linux/ide.h>#include <linux/seq_file.h>#include <linux/slab.h> #include <asm/io.h> static struct proc_dir_entry *proc_ide_root; static int ide_imodel_proc_show(struct seq_file *m, void *v){ ide_hwif_t *hwif = (ide_hwif_t *) m->private; const char *name; switch (hwif->chipset) { case ide_generic: name = "generic"; break; case ide_pci: name = "pci"; break; case ide_cmd640: name = "cmd640"; break; case ide_dtc2278: name = "dtc2278"; break; case ide_ali14xx: name = "ali14xx"; break; case ide_qd65xx: name = "qd65xx"; break; case ide_umc8672: name = "umc8672"; break; case ide_ht6560b: name = "ht6560b"; break; case ide_4drives: name = "4drives"; break; case ide_pmac: name = "mac-io"; break; case ide_au1xxx: name = "au1xxx"; break; case ide_palm3710: name = "palm3710"; break; case ide_acorn: name = "acorn"; break; default: name = "(unknown)"; break; } seq_printf(m, "%s\n", name); return 0;} static int ide_imodel_proc_open(struct inode *inode, struct file *file){ return single_open(file, ide_imodel_proc_show, PDE(inode)->data);} static const struct file_operations ide_imodel_proc_fops = { .owner = THIS_MODULE, .open = ide_imodel_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release,}; static int ide_mate_proc_show(struct seq_file *m, void *v){ ide_hwif_t *hwif = (ide_hwif_t *) m->private; if (hwif && hwif->mate) seq_printf(m, "%s\n", hwif->mate->name); else seq_printf(m, "(none)\n"); return 0;} static int ide_mate_proc_open(struct inode *inode, struct file *file){ return single_open(file, ide_mate_proc_show, PDE(inode)->data);} static const struct file_operations ide_mate_proc_fops = { .owner = THIS_MODULE, .open = ide_mate_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release,}; static int ide_channel_proc_show(struct seq_file *m, void *v){ ide_hwif_t *hwif = (ide_hwif_t *) m->private; seq_printf(m, "%c\n", hwif->channel ? '1' : '0'); return 0;} static int ide_channel_proc_open(struct inode *inode, struct file *file){ return single_open(file, ide_channel_proc_show, PDE(inode)->data);} static const struct file_operations ide_channel_proc_fops = { .owner = THIS_MODULE, .open = ide_channel_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release,}; static int ide_identify_proc_show(struct seq_file *m, void *v){ ide_drive_t *drive = (ide_drive_t *)m->private; u8 *buf; if (!drive) { seq_putc(m, '\n'); return 0; } buf = kmalloc(SECTOR_SIZE, GFP_KERNEL); if (!buf) return -ENOMEM; if (taskfile_lib_get_identify(drive, buf) == 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' : ' '); } } else seq_putc(m, buf[0]); kfree(buf); return 0;} static int ide_identify_proc_open(struct inode *inode, struct file *file){ return single_open(file, ide_identify_proc_show, PDE(inode)->data);} static const struct file_operations ide_identify_proc_fops = { .owner = THIS_MODULE, .open = ide_identify_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release,}; /** * ide_find_setting - find a specific setting * @st: setting table pointer * @name: setting name * * Scan's the setting table for a matching entry and returns * this or NULL if no entry is found. The caller must hold the * setting semaphore */ staticconst struct ide_proc_devset *ide_find_setting(const struct ide_proc_devset *st, char *name){ while (st->name) { if (strcmp(st->name, name) == 0) break; st++; } return st->name ? st : NULL;} /** * ide_read_setting - read an IDE setting * @drive: drive to read from * @setting: drive setting * * Read a drive setting and return the value. The caller * must hold the ide_setting_mtx when making this call. * * BUGS: the data return and error are the same return value * so an error -EINVAL and true return of the same value cannot * be told apart */ static int ide_read_setting(ide_drive_t *drive, const struct ide_proc_devset *setting){ const struct ide_devset *ds = setting->setting; int val = -EINVAL; if (ds->get) val = ds->get(drive); return val;} /** * ide_write_setting - read an IDE setting * @drive: drive to read from * @setting: drive setting * @val: value * * Write a drive setting if it is possible. The caller * must hold the ide_setting_mtx when making this call. * * BUGS: the data return and error are the same return value * so an error -EINVAL and true return of the same value cannot * be told apart * * FIXME: This should be changed to enqueue a special request * to the driver to change settings, and then wait on a sema for completion. * The current scheme of polling is kludgy, though safe enough. */ static int ide_write_setting(ide_drive_t *drive, const struct ide_proc_devset *setting, int val){ const struct ide_devset *ds = setting->setting; if (!capable(CAP_SYS_ADMIN)) return -EACCES; if (!ds->set) return -EPERM; if ((ds->flags & DS_SYNC) && (val < setting->min || val > setting->max)) return -EINVAL; return ide_devset_execute(drive, ds, val);} ide_devset_get(xfer_rate, current_speed); static int set_xfer_rate (ide_drive_t *drive, int arg){ struct ide_cmd cmd; if (arg < XFER_PIO_0 || arg > XFER_UDMA_6) return -EINVAL; memset(&cmd, 0, sizeof(cmd)); cmd.tf.command = ATA_CMD_SET_FEATURES; cmd.tf.feature = SETFEATURES_XFER; cmd.tf.nsect = (u8)arg; cmd.valid.out.tf = IDE_VALID_FEATURE | IDE_VALID_NSECT; cmd.valid.in.tf = IDE_VALID_NSECT; cmd.tf_flags = IDE_TFLAG_SET_XFER; return ide_no_data_taskfile(drive, &cmd);} ide_devset_rw(current_speed, xfer_rate);ide_devset_rw_field(init_speed, init_speed);ide_devset_rw_flag(nice1, IDE_DFLAG_NICE1);ide_devset_rw_field(number, dn); static const struct ide_proc_devset ide_generic_settings[] = { IDE_PROC_DEVSET(current_speed, 0, 70), IDE_PROC_DEVSET(init_speed, 0, 70), IDE_PROC_DEVSET(io_32bit, 0, 1 + (SUPPORT_VLB_SYNC << 1)), IDE_PROC_DEVSET(keepsettings, 0, 1), IDE_PROC_DEVSET(nice1, 0, 1), IDE_PROC_DEVSET(number, 0, 3), IDE_PROC_DEVSET(pio_mode, 0, 255), IDE_PROC_DEVSET(unmaskirq, 0, 1), IDE_PROC_DEVSET(using_dma, 0, 1), { NULL },}; static void proc_ide_settings_warn(void){ printk_once(KERN_WARNING "Warning: /proc/ide/hd?/settings interface is " "obsolete, and will be removed soon!\n");} static int ide_settings_proc_show(struct seq_file *m, void *v){ const struct ide_proc_devset *setting, *g, *d; const struct ide_devset *ds; ide_drive_t *drive = (ide_drive_t *) m->private; int rc, mul_factor, div_factor; proc_ide_settings_warn(); mutex_lock(&ide_setting_mtx); g = ide_generic_settings; d = drive->settings; seq_printf(m, "name\t\t\tvalue\t\tmin\t\tmax\t\tmode\n"); seq_printf(m, "----\t\t\t-----\t\t---\t\t---\t\t----\n"); while (g->name || (d && d->name)) { /* read settings in the alphabetical order */ if (g->name && d && d->name) { if (strcmp(d->name, g->name) < 0) setting = d++; else setting = g++; } else if (d && d->name) { setting = d++; } else setting = g++; mul_factor = setting->mulf ? setting->mulf(drive) : 1; div_factor = setting->divf ? setting->divf(drive) : 1; seq_printf(m, "%-24s", setting->name); rc = ide_read_setting(drive, setting); if (rc >= 0) seq_printf(m, "%-16d", rc * mul_factor / div_factor); else seq_printf(m, "%-16s", "write-only"); seq_printf(m, "%-16d%-16d", (setting->min * mul_factor + div_factor - 1) / div_factor, setting->max * mul_factor / div_factor); ds = setting->setting; if (ds->get) seq_printf(m, "r"); if (ds->set) seq_printf(m, "w"); seq_printf(m, "\n"); } mutex_unlock(&ide_setting_mtx); return 0;} static int ide_settings_proc_open(struct inode *inode, struct file *file){ return single_open(file, ide_settings_proc_show, PDE(inode)->data);} #define MAX_LEN 30 static ssize_t ide_settings_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos){ ide_drive_t *drive = (ide_drive_t *) PDE(file->f_path.dentry->d_inode)->data; char name[MAX_LEN + 1]; int for_real = 0, mul_factor, div_factor; unsigned long n; const struct ide_proc_devset *setting; char *buf, *s; if (!capable(CAP_SYS_ADMIN)) return -EACCES; proc_ide_settings_warn(); if (count >= PAGE_SIZE) return -EINVAL; s = buf = (char *)__get_free_page(GFP_USER); if (!buf) return -ENOMEM; if (copy_from_user(buf, buffer, count)) { free_page((unsigned long)buf); return -EFAULT; } buf[count] = '\0'; /* * Skip over leading whitespace */ while (count && isspace(*s)) { --count; ++s; } /* * Do one full pass to verify all parameters, * then do another to actually write the new settings. */ do { char *p = s; n = count; while (n > 0) { unsigned val; char *q = p; while (n > 0 && *p != ':') { --n; p++; } if (*p != ':') goto parse_error; if (p - q > MAX_LEN) goto parse_error; memcpy(name, q, p - q); name[p - q] = 0; if (n > 0) { --n; p++; } else goto parse_error; val = simple_strtoul(p, &q, 10); n -= q - p; p = q; if (n > 0 && !isspace(*p)) goto parse_error; while (n > 0 && isspace(*p)) { --n; ++p; } mutex_lock(&ide_setting_mtx); /* generic settings first, then driver specific ones */ setting = ide_find_setting(ide_generic_settings, name); if (!setting) { if (drive->settings) setting = ide_find_setting(drive->settings, name); if (!setting) { mutex_unlock(&ide_setting_mtx); goto parse_error; } } if (for_real) { mul_factor = setting->mulf ? setting->mulf(drive) : 1; div_factor = setting->divf ? setting->divf(drive) : 1; ide_write_setting(drive, setting, val * div_factor / mul_factor); } mutex_unlock(&ide_setting_mtx); } } while (!for_real++); free_page((unsigned long)buf); return count;parse_error: free_page((unsigned long)buf); printk("%s(): parse error\n", __func__); return -EINVAL;} static const struct file_operations ide_settings_proc_fops = { .owner = THIS_MODULE, .open = ide_settings_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .write = ide_settings_proc_write,}; static int ide_capacity_proc_show(struct seq_file *m, void *v){ seq_printf(m, "%llu\n", (long long)0x7fffffff); return 0;} static int ide_capacity_proc_open(struct inode *inode, struct file *file){ return single_open(file, ide_capacity_proc_show, NULL);} const struct file_operations ide_capacity_proc_fops = { .owner = THIS_MODULE, .open = ide_capacity_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release,};EXPORT_SYMBOL_GPL(ide_capacity_proc_fops); static int ide_geometry_proc_show(struct seq_file *m, void *v){ ide_drive_t *drive = (ide_drive_t *) m->private; seq_printf(m, "physical %d/%d/%d\n", drive->cyl, drive->head, drive->sect); seq_printf(m, "logical %d/%d/%d\n", drive->bios_cyl, drive->bios_head, drive->bios_sect); return 0;} static int ide_geometry_proc_open(struct inode *inode, struct file *file){ return single_open(file, ide_geometry_proc_show, PDE(inode)->data);} const struct file_operations ide_geometry_proc_fops = { .owner = THIS_MODULE, .open = ide_geometry_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release,};EXPORT_SYMBOL(ide_geometry_proc_fops); static int ide_dmodel_proc_show(struct seq_file *seq, void *v){ ide_drive_t *drive = (ide_drive_t *) seq->private; char *m = (char *)&drive->id[ATA_ID_PROD]; seq_printf(seq, "%.40s\n", m[0] ? m : "(none)"); return 0;} static int ide_dmodel_proc_open(struct inode *inode, struct file *file){ return single_open(file, ide_dmodel_proc_show, PDE(inode)->data);Lines 1–500 of 790. 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/* * Copyright (C) 1997-1998 Mark Lord * Copyright (C) 2003 Red Hat * * Some code was moved here from ide.c, see it for original copyrights. */ /* * This is the /proc/ide/ filesystem implementation. * * Drive/Driver settings can be retrieved by reading the drive's * "settings" files. e.g. "cat /proc/ide0/hda/settings" * To write a new value "val" into a specific setting "name", use: * echo "name:val" >/proc/ide/ide0/hda/settings */ #include <linux/module.h> #include <asm/uaccess.h> #include <linux/errno.h> #include <linux/proc_fs.h> #include <linux/stat.h> #include <linux/mm.h> #include <linux/pci.h> #include <linux/ctype.h> #include <linux/ide.h> #include <linux/seq_file.h> #include <linux/slab.h> #include <asm/io.h> static struct proc_dir_entry *proc_ide_root; static int ide_imodel_proc_show(struct seq_file *m, void *v) { ide_hwif_t *hwif = (ide_hwif_t *) m->private; const char *name; switch (hwif->chipset) { case ide_generic: name = "generic"; break; case ide_pci: name = "pci"; break; case ide_cmd640: name = "cmd640"; break; case ide_dtc2278: name = "dtc2278"; break; case ide_ali14xx: name = "ali14xx"; break; case ide_qd65xx: name = "qd65xx"; break; case ide_umc8672: name = "umc8672"; break; case ide_ht6560b: name = "ht6560b"; break; case ide_4drives: name = "4drives"; break; case ide_pmac: name = "mac-io"; break; case ide_au1xxx: name = "au1xxx"; break; case ide_palm3710: name = "palm3710"; break; case ide_acorn: name = "acorn"; break; default: name = "(unknown)"; break; } seq_printf(m, "%s\n", name); return 0; } static int ide_imodel_proc_open(struct inode *inode, struct file *file) { return single_open(file, ide_imodel_proc_show, PDE(inode)->data); } static const struct file_operations ide_imodel_proc_fops = { .owner = THIS_MODULE, .open = ide_imodel_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int ide_mate_proc_show(struct seq_file *m, void *v) { ide_hwif_t *hwif = (ide_hwif_t *) m->private; if (hwif && hwif->mate) seq_printf(m, "%s\n", hwif->mate->name); else seq_printf(m, "(none)\n"); return 0; } static int ide_mate_proc_open(struct inode *inode, struct file *file) { return single_open(file, ide_mate_proc_show, PDE(inode)->data); } static const struct file_operations ide_mate_proc_fops = { .owner = THIS_MODULE, .open = ide_mate_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int ide_channel_proc_show(struct seq_file *m, void *v) { ide_hwif_t *hwif = (ide_hwif_t *) m->private; seq_printf(m, "%c\n", hwif->channel ? '1' : '0'); return 0; } static int ide_channel_proc_open(struct inode *inode, struct file *file) { return single_open(file, ide_channel_proc_show, PDE(inode)->data); } static const struct file_operations ide_channel_proc_fops = { .owner = THIS_MODULE, .open = ide_channel_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int ide_identify_proc_show(struct seq_file *m, void *v) { ide_drive_t *drive = (ide_drive_t *)m->private; u8 *buf; if (!drive) { seq_putc(m, '\n'); return 0; } buf = kmalloc(SECTOR_SIZE, GFP_KERNEL); if (!buf) return -ENOMEM; if (taskfile_lib_get_identify(drive, buf) == 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' : ' '); } } else seq_putc(m, buf[0]); kfree(buf); return 0; } static int ide_identify_proc_open(struct inode *inode, struct file *file) { return single_open(file, ide_identify_proc_show, PDE(inode)->data); } static const struct file_operations ide_identify_proc_fops = { .owner = THIS_MODULE, .open = ide_identify_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; /** * ide_find_setting - find a specific setting * @st: setting table pointer * @name: setting name * * Scan's the setting table for a matching entry and returns * this or NULL if no entry is found. The caller must hold the * setting semaphore */ static const struct ide_proc_devset *ide_find_setting(const struct ide_proc_devset *st, char *name) { while (st->name) { if (strcmp(st->name, name) == 0) break; st++; } return st->name ? st : NULL; } /** * ide_read_setting - read an IDE setting * @drive: drive to read from * @setting: drive setting * * Read a drive setting and return the value. The caller * must hold the ide_setting_mtx when making this call. * * BUGS: the data return and error are the same return value * so an error -EINVAL and true return of the same value cannot * be told apart */ static int ide_read_setting(ide_drive_t *drive, const struct ide_proc_devset *setting) { const struct ide_devset *ds = setting->setting; int val = -EINVAL; if (ds->get) val = ds->get(drive); return val; } /** * ide_write_setting - read an IDE setting * @drive: drive to read from * @setting: drive setting * @val: value * * Write a drive setting if it is possible. The caller * must hold the ide_setting_mtx when making this call. * * BUGS: the data return and error are the same return value * so an error -EINVAL and true return of the same value cannot * be told apart * * FIXME: This should be changed to enqueue a special request * to the driver to change settings, and then wait on a sema for completion. * The current scheme of polling is kludgy, though safe enough. */ static int ide_write_setting(ide_drive_t *drive, const struct ide_proc_devset *setting, int val) { const struct ide_devset *ds = setting->setting; if (!capable(CAP_SYS_ADMIN)) return -EACCES; if (!ds->set) return -EPERM; if ((ds->flags & DS_SYNC) && (val < setting->min || val > setting->max)) return -EINVAL; return ide_devset_execute(drive, ds, val); } ide_devset_get(xfer_rate, current_speed); static int set_xfer_rate (ide_drive_t *drive, int arg) { struct ide_cmd cmd; if (arg < XFER_PIO_0 || arg > XFER_UDMA_6) return -EINVAL; memset(&cmd, 0, sizeof(cmd)); cmd.tf.command = ATA_CMD_SET_FEATURES; cmd.tf.feature = SETFEATURES_XFER; cmd.tf.nsect = (u8)arg; cmd.valid.out.tf = IDE_VALID_FEATURE | IDE_VALID_NSECT; cmd.valid.in.tf = IDE_VALID_NSECT; cmd.tf_flags = IDE_TFLAG_SET_XFER; return ide_no_data_taskfile(drive, &cmd); } ide_devset_rw(current_speed, xfer_rate); ide_devset_rw_field(init_speed, init_speed); ide_devset_rw_flag(nice1, IDE_DFLAG_NICE1); ide_devset_rw_field(number, dn); static const struct ide_proc_devset ide_generic_settings[] = { IDE_PROC_DEVSET(current_speed, 0, 70), IDE_PROC_DEVSET(init_speed, 0, 70), IDE_PROC_DEVSET(io_32bit, 0, 1 + (SUPPORT_VLB_SYNC << 1)), IDE_PROC_DEVSET(keepsettings, 0, 1), IDE_PROC_DEVSET(nice1, 0, 1), IDE_PROC_DEVSET(number, 0, 3), IDE_PROC_DEVSET(pio_mode, 0, 255), IDE_PROC_DEVSET(unmaskirq, 0, 1), IDE_PROC_DEVSET(using_dma, 0, 1), { NULL }, }; static void proc_ide_settings_warn(void) { printk_once(KERN_WARNING "Warning: /proc/ide/hd?/settings interface is " "obsolete, and will be removed soon!\n"); } static int ide_settings_proc_show(struct seq_file *m, void *v) { const struct ide_proc_devset *setting, *g, *d; const struct ide_devset *ds; ide_drive_t *drive = (ide_drive_t *) m->private; int rc, mul_factor, div_factor; proc_ide_settings_warn(); mutex_lock(&ide_setting_mtx); g = ide_generic_settings; d = drive->settings; seq_printf(m, "name\t\t\tvalue\t\tmin\t\tmax\t\tmode\n"); seq_printf(m, "----\t\t\t-----\t\t---\t\t---\t\t----\n"); while (g->name || (d && d->name)) { /* read settings in the alphabetical order */ if (g->name && d && d->name) { if (strcmp(d->name, g->name) < 0) setting = d++; else setting = g++; } else if (d && d->name) { setting = d++; } else setting = g++; mul_factor = setting->mulf ? setting->mulf(drive) : 1; div_factor = setting->divf ? setting->divf(drive) : 1; seq_printf(m, "%-24s", setting->name); rc = ide_read_setting(drive, setting); if (rc >= 0) seq_printf(m, "%-16d", rc * mul_factor / div_factor); else seq_printf(m, "%-16s", "write-only"); seq_printf(m, "%-16d%-16d", (setting->min * mul_factor + div_factor - 1) / div_factor, setting->max * mul_factor / div_factor); ds = setting->setting; if (ds->get) seq_printf(m, "r"); if (ds->set) seq_printf(m, "w"); seq_printf(m, "\n"); } mutex_unlock(&ide_setting_mtx); return 0; } static int ide_settings_proc_open(struct inode *inode, struct file *file) { return single_open(file, ide_settings_proc_show, PDE(inode)->data); } #define MAX_LEN 30 static ssize_t ide_settings_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { ide_drive_t *drive = (ide_drive_t *) PDE(file->f_path.dentry->d_inode)->data; char name[MAX_LEN + 1]; int for_real = 0, mul_factor, div_factor; unsigned long n; const struct ide_proc_devset *setting; char *buf, *s; if (!capable(CAP_SYS_ADMIN)) return -EACCES; proc_ide_settings_warn(); if (count >= PAGE_SIZE) return -EINVAL; s = buf = (char *)__get_free_page(GFP_USER); if (!buf) return -ENOMEM; if (copy_from_user(buf, buffer, count)) { free_page((unsigned long)buf); return -EFAULT; } buf[count] = '\0'; /* * Skip over leading whitespace */ while (count && isspace(*s)) { --count; ++s; } /* * Do one full pass to verify all parameters, * then do another to actually write the new settings. */ do { char *p = s; n = count; while (n > 0) { unsigned val; char *q = p; while (n > 0 && *p != ':') { --n; p++; } if (*p != ':') goto parse_error; if (p - q > MAX_LEN) goto parse_error; memcpy(name, q, p - q); name[p - q] = 0; if (n > 0) { --n; p++; } else goto parse_error; val = simple_strtoul(p, &q, 10); n -= q - p; p = q; if (n > 0 && !isspace(*p)) goto parse_error; while (n > 0 && isspace(*p)) { --n; ++p; } mutex_lock(&ide_setting_mtx); /* generic settings first, then driver specific ones */ setting = ide_find_setting(ide_generic_settings, name); if (!setting) { if (drive->settings) setting = ide_find_setting(drive->settings, name); if (!setting) { mutex_unlock(&ide_setting_mtx); goto parse_error; } } if (for_real) { mul_factor = setting->mulf ? setting->mulf(drive) : 1; div_factor = setting->divf ? setting->divf(drive) : 1; ide_write_setting(drive, setting, val * div_factor / mul_factor); } mutex_unlock(&ide_setting_mtx); } } while (!for_real++); free_page((unsigned long)buf); return count; parse_error: free_page((unsigned long)buf); printk("%s(): parse error\n", __func__); return -EINVAL; } static const struct file_operations ide_settings_proc_fops = { .owner = THIS_MODULE, .open = ide_settings_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .write = ide_settings_proc_write, }; static int ide_capacity_proc_show(struct seq_file *m, void *v) { seq_printf(m, "%llu\n", (long long)0x7fffffff); return 0; } static int ide_capacity_proc_open(struct inode *inode, struct file *file) { return single_open(file, ide_capacity_proc_show, NULL); } const struct file_operations ide_capacity_proc_fops = { .owner = THIS_MODULE, .open = ide_capacity_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; EXPORT_SYMBOL_GPL(ide_capacity_proc_fops); static int ide_geometry_proc_show(struct seq_file *m, void *v) { ide_drive_t *drive = (ide_drive_t *) m->private; seq_printf(m, "physical %d/%d/%d\n", drive->cyl, drive->head, drive->sect); seq_printf(m, "logical %d/%d/%d\n", drive->bios_cyl, drive->bios_head, drive->bios_sect); return 0; } static int ide_geometry_proc_open(struct inode *inode, struct file *file) { return single_open(file, ide_geometry_proc_show, PDE(inode)->data); } const struct file_operations ide_geometry_proc_fops = { .owner = THIS_MODULE, .open = ide_geometry_proc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; EXPORT_SYMBOL(ide_geometry_proc_fops); static int ide_dmodel_proc_show(struct seq_file *seq, void *v) { ide_drive_t *drive = (ide_drive_t *) seq->private; char *m = (char *)&drive->id[ATA_ID_PROD]; seq_printf(seq, "%.40s\n", m[0] ? m : "(none)"); return 0; } static int ide_dmodel_proc_open(struct inode *inode, struct file *file) { return single_open(file, ide_dmodel_proc_show, PDE(inode)->data);