Linux-2.6.12-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!
diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
new file mode 100644
index 0000000..bdff5ac
--- /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);
+}