Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 521 insertions, 0 deletions

diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
new file mode 100644
index 000000000000..bdff5ac58053
--- /dev/null
+++ b/drivers/ide/ide-proc.c
@@ -0,0 +1,521 @@
+/*
+ *  linux/drivers/ide/ide-proc.c        Version 1.05    Mar 05, 2003
+ *
+ *  Copyright (C) 1997-1998     Mark Lord
+ *  Copyright (C) 2003          Red Hat <alan@redhat.com>
+ */
+
+/*
+ * 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
+ *
+ * Also useful, "cat /proc/ide0/hda/[identify, smart_values,
+ * smart_thresholds, capabilities]" will issue an IDENTIFY /
+ * PACKET_IDENTIFY / SMART_READ_VALUES / SMART_READ_THRESHOLDS /
+ * SENSE CAPABILITIES command to /dev/hda, and then dump out the
+ * returned data as 256 16-bit words.  The "hdparm" utility will
+ * be updated someday soon to use this mechanism.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <asm/uaccess.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/ctype.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/seq_file.h>
+
+#include <asm/io.h>
+
+static int proc_ide_read_imodel
+        (char *page, char **start, off_t off, int count, int *eof, void *data)
+{
+        ide_hwif_t      *hwif = (ide_hwif_t *) data;
+        int             len;
+        const char      *name;
+
+        /*
+         * Neither ide_unknown nor ide_forced should be set at this point.
+         */
+        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_rz1000:        name = "rz1000";        break;
+                case ide_trm290:        name = "trm290";        break;
+                case ide_cmd646:        name = "cmd646";        break;
+                case ide_cy82c693:      name = "cy82c693";      break;
+                case ide_4drives:       name = "4drives";       break;
+                case ide_pmac:          name = "mac-io";        break;
+                default:                name = "(unknown)";     break;
+        }
+        len = sprintf(page, "%s\n", name);
+        PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+}
+
+static int proc_ide_read_mate
+        (char *page, char **start, off_t off, int count, int *eof, void *data)
+{
+        ide_hwif_t      *hwif = (ide_hwif_t *) data;
+        int             len;
+
+        if (hwif && hwif->mate && hwif->mate->present)
+                len = sprintf(page, "%s\n", hwif->mate->name);
+        else
+                len = sprintf(page, "(none)\n");
+        PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+}
+
+static int proc_ide_read_channel
+        (char *page, char **start, off_t off, int count, int *eof, void *data)
+{
+        ide_hwif_t      *hwif = (ide_hwif_t *) data;
+        int             len;
+
+        page[0] = hwif->channel ? '1' : '0';
+        page[1] = '\n';
+        len = 2;
+        PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+}
+
+static int proc_ide_read_identify
+        (char *page, char **start, off_t off, int count, int *eof, void *data)
+{
+        ide_drive_t     *drive = (ide_drive_t *)data;
+        int             len = 0, i = 0;
+        int             err = 0;
+
+        len = sprintf(page, "\n");
+
+        if (drive) {
+                unsigned short *val = (unsigned short *) page;
+
+                err = taskfile_lib_get_identify(drive, page);
+                if (!err) {
+                        char *out = ((char *)page) + (SECTOR_WORDS * 4);
+                        page = out;
+                        do {
+                                out += sprintf(out, "%04x%c",
+                                        le16_to_cpu(*val), (++i & 7) ? ' ' : '\n');
+                                val += 1;
+                        } while (i < (SECTOR_WORDS * 2));
+                        len = out - page;
+                }
+        }
+        PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+}
+
+static void proc_ide_settings_warn(void)
+{
+        static int warned = 0;
+
+        if (warned)
+                return;
+
+        printk(KERN_WARNING "Warning: /proc/ide/hd?/settings interface is "
+                            "obsolete, and will be removed soon!\n");
+        warned = 1;
+}
+
+static int proc_ide_read_settings
+        (char *page, char **start, off_t off, int count, int *eof, void *data)
+{
+        ide_drive_t     *drive = (ide_drive_t *) data;
+        ide_settings_t  *setting = (ide_settings_t *) drive->settings;
+        char            *out = page;
+        int             len, rc, mul_factor, div_factor;
+
+        proc_ide_settings_warn();
+
+        down(&ide_setting_sem);
+        out += sprintf(out, "name\t\t\tvalue\t\tmin\t\tmax\t\tmode\n");
+        out += sprintf(out, "----\t\t\t-----\t\t---\t\t---\t\t----\n");
+        while(setting) {
+                mul_factor = setting->mul_factor;
+                div_factor = setting->div_factor;
+                out += sprintf(out, "%-24s", setting->name);
+                if ((rc = ide_read_setting(drive, setting)) >= 0)
+                        out += sprintf(out, "%-16d", rc * mul_factor / div_factor);
+                else
+                        out += sprintf(out, "%-16s", "write-only");
+                out += sprintf(out, "%-16d%-16d", (setting->min * mul_factor + div_factor - 1) / div_factor, setting->max * mul_factor / div_factor);
+                if (setting->rw & SETTING_READ)
+                        out += sprintf(out, "r");
+                if (setting->rw & SETTING_WRITE)
+                        out += sprintf(out, "w");
+                out += sprintf(out, "\n");
+                setting = setting->next;
+        }
+        len = out - page;
+        up(&ide_setting_sem);
+        PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+}
+
+#define MAX_LEN 30
+
+static int proc_ide_write_settings(struct file *file, const char __user *buffer,
+                                   unsigned long count, void *data)
+{
+        ide_drive_t     *drive = (ide_drive_t *) data;
+        char            name[MAX_LEN + 1];
+        int             for_real = 0;
+        unsigned long   n;
+        ide_settings_t  *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;
+                        }
+
+                        down(&ide_setting_sem);
+                        setting = ide_find_setting_by_name(drive, name);
+                        if (!setting)
+                        {
+                                up(&ide_setting_sem);
+                                goto parse_error;
+                        }
+                        if (for_real)
+                                ide_write_setting(drive, setting, val * setting->div_factor / setting->mul_factor);
+                        up(&ide_setting_sem);
+                }
+        } while (!for_real++);
+        free_page((unsigned long)buf);
+        return count;
+parse_error:
+        free_page((unsigned long)buf);
+        printk("proc_ide_write_settings(): parse error\n");
+        return -EINVAL;
+}
+
+int proc_ide_read_capacity
+        (char *page, char **start, off_t off, int count, int *eof, void *data)
+{
+        int len = sprintf(page,"%llu\n", (long long)0x7fffffff);
+        PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+}
+
+EXPORT_SYMBOL_GPL(proc_ide_read_capacity);
+
+int proc_ide_read_geometry
+        (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;
+
+        out += sprintf(out,"physical     %d/%d/%d\n",
+                        drive->cyl, drive->head, drive->sect);
+        out += sprintf(out,"logical      %d/%d/%d\n",
+                        drive->bios_cyl, drive->bios_head, drive->bios_sect);
+
+        len = out - page;
+        PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+}
+
+EXPORT_SYMBOL(proc_ide_read_geometry);
+
+static int proc_ide_read_dmodel
+        (char *page, char **start, off_t off, int count, int *eof, void *data)
+{
+        ide_drive_t     *drive = (ide_drive_t *) data;
+        struct hd_driveid *id = drive->id;
+        int             len;
+
+        len = sprintf(page, "%.40s\n",
+                (id && id->model[0]) ? (char *)id->model : "(none)");
+        PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+}
+
+static int proc_ide_read_driver
+        (char *page, char **start, off_t off, int count, int *eof, void *data)
+{
+        ide_drive_t     *drive = (ide_drive_t *) data;
+        ide_driver_t    *driver = drive->driver;
+        int             len;
+
+        if (driver) {
+                len = sprintf(page, "%s version %s\n",
+                                driver->name, driver->version);
+        } else
+                len = sprintf(page, "ide-default version 0.9.newide\n");
+        PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+}
+
+static int proc_ide_write_driver
+        (struct file *file, const char __user *buffer, unsigned long count, void *data)
+{
+        ide_drive_t     *drive = (ide_drive_t *) data;
+        char name[32];
+
+        if (!capable(CAP_SYS_ADMIN))
+                return -EACCES;
+        if (count > 31)
+                count = 31;
+        if (copy_from_user(name, buffer, count))
+                return -EFAULT;
+        name[count] = '\0';
+        if (ide_replace_subdriver(drive, name))
+                return -EINVAL;
+        return count;
+}
+
+static int proc_ide_read_media
+        (char *page, char **start, off_t off, int count, int *eof, void *data)
+{
+        ide_drive_t     *drive = (ide_drive_t *) data;
+        const char      *media;
+        int             len;
+
+        switch (drive->media) {
+                case ide_disk:  media = "disk\n";
+                                break;
+                case ide_cdrom: media = "cdrom\n";
+                                break;
+                case ide_tape:  media = "tape\n";
+                                break;
+                case ide_floppy:media = "floppy\n";
+                                break;
+                default:        media = "UNKNOWN\n";
+                                break;
+        }
+        strcpy(page,media);
+        len = strlen(media);
+        PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
+}
+
+static ide_proc_entry_t generic_drive_entries[] = {
+        { "driver",     S_IFREG|S_IRUGO,        proc_ide_read_driver,   proc_ide_write_driver },
+        { "identify",   S_IFREG|S_IRUSR,        proc_ide_read_identify, NULL },
+        { "media",      S_IFREG|S_IRUGO,        proc_ide_read_media,    NULL },
+        { "model",      S_IFREG|S_IRUGO,        proc_ide_read_dmodel,   NULL },
+        { "settings",   S_IFREG|S_IRUSR|S_IWUSR,proc_ide_read_settings, proc_ide_write_settings },
+        { NULL, 0, NULL, NULL }
+};
+
+void ide_add_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p, void *data)
+{
+        struct proc_dir_entry *ent;
+
+        if (!dir || !p)
+                return;
+        while (p->name != NULL) {
+                ent = create_proc_entry(p->name, p->mode, dir);
+                if (!ent) return;
+                ent->nlink = 1;
+                ent->data = data;
+                ent->read_proc = p->read_proc;
+                ent->write_proc = p->write_proc;
+                p++;
+        }
+}
+
+void ide_remove_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p)
+{
+        if (!dir || !p)
+                return;
+        while (p->name != NULL) {
+                remove_proc_entry(p->name, dir);
+                p++;
+        }
+}
+
+static void create_proc_ide_drives(ide_hwif_t *hwif)
+{
+        int     d;
+        struct proc_dir_entry *ent;
+        struct proc_dir_entry *parent = hwif->proc;
+        char name[64];
+
+        for (d = 0; d < MAX_DRIVES; d++) {
+                ide_drive_t *drive = &hwif->drives[d];
+
+                if (!drive->present)
+                        continue;
+                if (drive->proc)
+                        continue;
+
+                drive->proc = proc_mkdir(drive->name, parent);
+                if (drive->proc)
+                        ide_add_proc_entries(drive->proc, generic_drive_entries, drive);
+                sprintf(name,"ide%d/%s", (drive->name[2]-'a')/2, drive->name);
+                ent = proc_symlink(drive->name, proc_ide_root, name);
+                if (!ent) return;
+        }
+}
+
+static void destroy_proc_ide_device(ide_hwif_t *hwif, ide_drive_t *drive)
+{
+        if (drive->proc) {
+                ide_remove_proc_entries(drive->proc, generic_drive_entries);
+                remove_proc_entry(drive->name, proc_ide_root);
+                remove_proc_entry(drive->name, hwif->proc);
+                drive->proc = NULL;
+        }
+}
+
+static void destroy_proc_ide_drives(ide_hwif_t *hwif)
+{
+        int     d;
+
+        for (d = 0; d < MAX_DRIVES; d++) {
+                ide_drive_t *drive = &hwif->drives[d];
+                if (drive->proc)
+                        destroy_proc_ide_device(hwif, drive);
+        }
+}
+
+static ide_proc_entry_t hwif_entries[] = {
+        { "channel",    S_IFREG|S_IRUGO,        proc_ide_read_channel,  NULL },
+        { "mate",       S_IFREG|S_IRUGO,        proc_ide_read_mate,     NULL },
+        { "model",      S_IFREG|S_IRUGO,        proc_ide_read_imodel,   NULL },
+        { NULL, 0, NULL, NULL }
+};
+
+void create_proc_ide_interfaces(void)
+{
+        int     h;
+
+        for (h = 0; h < MAX_HWIFS; h++) {
+                ide_hwif_t *hwif = &ide_hwifs[h];
+
+                if (!hwif->present)
+                        continue;
+                if (!hwif->proc) {
+                        hwif->proc = proc_mkdir(hwif->name, proc_ide_root);
+                        if (!hwif->proc)
+                                return;
+                        ide_add_proc_entries(hwif->proc, hwif_entries, hwif);
+                }
+                create_proc_ide_drives(hwif);
+        }
+}
+
+EXPORT_SYMBOL(create_proc_ide_interfaces);
+
+#ifdef CONFIG_BLK_DEV_IDEPCI
+void ide_pci_create_host_proc(const char *name, get_info_t *get_info)
+{
+        create_proc_info_entry(name, 0, proc_ide_root, get_info);
+}
+
+EXPORT_SYMBOL_GPL(ide_pci_create_host_proc);
+#endif
+
+void destroy_proc_ide_interface(ide_hwif_t *hwif)
+{
+        if (hwif->proc) {
+                destroy_proc_ide_drives(hwif);
+                ide_remove_proc_entries(hwif->proc, hwif_entries);
+                remove_proc_entry(hwif->name, proc_ide_root);
+                hwif->proc = NULL;
+        }
+}
+
+extern struct seq_operations ide_drivers_op;
+static int ide_drivers_open(struct inode *inode, struct file *file)
+{
+        return seq_open(file, &ide_drivers_op);
+}
+static struct file_operations ide_drivers_operations = {
+        .open           = ide_drivers_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = seq_release,
+};
+
+void proc_ide_create(void)
+{
+        struct proc_dir_entry *entry;
+
+        if (!proc_ide_root)
+                return;
+
+        create_proc_ide_interfaces();
+
+        entry = create_proc_entry("drivers", 0, proc_ide_root);
+        if (entry)
+                entry->proc_fops = &ide_drivers_operations;
+}
+
+void proc_ide_destroy(void)
+{
+        remove_proc_entry("ide/drivers", proc_ide_root);
+        remove_proc_entry("ide", NULL);
+}