]> git.karo-electronics.de Git - karo-tx-linux.git/blobdiff - drivers/ide/ide.c
ide: remove "idex=dma" kernel parameter
[karo-tx-linux.git] / drivers / ide / ide.c
index c948a5c17a5d8c1e1cb5afe9682afa1f51e95442..02336595144a65a1af9cffaf166af151f7cd8fe0 100644 (file)
  *   (usually 14 & 15).
  * There can be up to two drives per interface, as per the ATA-2 spec.
  *
- * Primary:    ide0, port 0x1f0; major=3;  hda is minor=0; hdb is minor=64
- * Secondary:  ide1, port 0x170; major=22; hdc is minor=0; hdd is minor=64
- * Tertiary:   ide2, port 0x???; major=33; hde is minor=0; hdf is minor=64
- * Quaternary: ide3, port 0x???; major=34; hdg is minor=0; hdh is minor=64
  * ...
  *
  *  From hd.c:
  *  This was a rewrite of just about everything from hd.c, though some original
  *  code is still sprinkled about.  Think of it as a major evolution, with
  *  inspiration from lots of linux users, esp.  hamish@zot.apana.org.au
- *
- *  Version 1.0 ALPHA  initial code, primary i/f working okay
- *  Version 1.3 BETA   dual i/f on shared irq tested & working!
- *  Version 1.4 BETA   added auto probing for irq(s)
- *  Version 1.5 BETA   added ALPHA (untested) support for IDE cd-roms,
- *  ...
- * Version 5.50                allow values as small as 20 for idebus=
- * Version 5.51                force non io_32bit in drive_cmd_intr()
- *                     change delay_10ms() to delay_50ms() to fix problems
- * Version 5.52                fix incorrect invalidation of removable devices
- *                     add "hdx=slow" command line option
- * Version 5.60                start to modularize the driver; the disk and ATAPI
- *                      drivers can be compiled as loadable modules.
- *                     move IDE probe code to ide-probe.c
- *                     move IDE disk code to ide-disk.c
- *                     add support for generic IDE device subdrivers
- *                     add m68k code from Geert Uytterhoeven
- *                     probe all interfaces by default
- *                     add ioctl to (re)probe an interface
- * Version 6.00                use per device request queues
- *                     attempt to optimize shared hwgroup performance
- *                     add ioctl to manually adjust bandwidth algorithms
- *                     add kerneld support for the probe module
- *                     fix bug in ide_error()
- *                     fix bug in the first ide_get_lock() call for Atari
- *                     don't flush leftover data for ATAPI devices
- * Version 6.01                clear hwgroup->active while the hwgroup sleeps
- *                     support HDIO_GETGEO for floppies
- * Version 6.02                fix ide_ack_intr() call
- *                     check partition table on floppies
- * Version 6.03                handle bad status bit sequencing in ide_wait_stat()
- * Version 6.10                deleted old entries from this list of updates
- *                     replaced triton.c with ide-dma.c generic PCI DMA
- *                     added support for BIOS-enabled UltraDMA
- *                     rename all "promise" things to "pdc4030"
- *                     fix EZ-DRIVE handling on small disks
- * Version 6.11                fix probe error in ide_scan_devices()
- *                     fix ancient "jiffies" polling bugs
- *                     mask all hwgroup interrupts on each irq entry
- * Version 6.12                integrate ioctl and proc interfaces
- *                     fix parsing of "idex=" command line parameter
- * Version 6.13                add support for ide4/ide5 courtesy rjones@orchestream.com
- * Version 6.14                fixed IRQ sharing among PCI devices
- * Version 6.15                added SMP awareness to IDE drivers
- * Version 6.16                fixed various bugs; even more SMP friendly
- * Version 6.17                fix for newest EZ-Drive problem
- * Version 6.18                default unpartitioned-disk translation now "BIOS LBA"
- * Version 6.19                Re-design for a UNIFORM driver for all platforms,
- *                       model based on suggestions from Russell King and
- *                       Geert Uytterhoeven
- *                     Promise DC4030VL now supported.
- *                     add support for ide6/ide7
- *                     delay_50ms() changed to ide_delay_50ms() and exported.
- * Version 6.20                Added/Fixed Generic ATA-66 support and hwif detection.
- *                     Added hdx=flash to allow for second flash disk
- *                       detection w/o the hang loop.
- *                     Added support for ide8/ide9
- *                     Added idex=ata66 for the quirky chipsets that are
- *                       ATA-66 compliant, but have yet to determine a method
- *                       of verification of the 80c cable presence.
- *                       Specifically Promise's PDC20262 chipset.
- * Version 6.21                Fixing/Fixed SMP spinlock issue with insight from an old
- *                       hat that clarified original low level driver design.
- * Version 6.30                Added SMP support; fixed multmode issues.  -ml
- * Version 6.31                Debug Share INTR's and request queue streaming
- *                     Native ATA-100 support
- *                     Prep for Cascades Project
- * Version 7.00alpha   First named revision of ide rearrange
- *
- *  Some additional driver compile-time options are in ./include/linux/ide.h
- *
- *  To do, in likely order of completion:
- *     - modify kernel to obtain BIOS geometry for drives on 2nd/3rd/4th i/f
- *
  */
 
 #define        REVISION        "Revision: 7.00alpha2"
@@ -178,8 +100,6 @@ static int ide_scan_direction; /* THIS was formerly 2.2.x pci=reverse */
 
 int noautodma = 0;
 
-EXPORT_SYMBOL(noautodma);
-
 #ifdef CONFIG_BLK_DEV_IDEACPI
 int ide_noacpi = 0;
 int ide_noacpitfs = 1;
@@ -455,6 +375,10 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
        hwif->straight8                 = tmp_hwif->straight8;
        hwif->bus_state                 = tmp_hwif->bus_state;
 
+       hwif->host_flags                = tmp_hwif->host_flags;
+
+       hwif->pio_mask                  = tmp_hwif->pio_mask;
+
        hwif->atapi_dma                 = tmp_hwif->atapi_dma;
        hwif->ultra_mask                = tmp_hwif->ultra_mask;
        hwif->mwdma_mask                = tmp_hwif->mwdma_mask;
@@ -470,8 +394,9 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
        hwif->cds                       = tmp_hwif->cds;
 #endif
 
-       hwif->tuneproc                  = tmp_hwif->tuneproc;
-       hwif->speedproc                 = tmp_hwif->speedproc;
+       hwif->set_pio_mode              = tmp_hwif->set_pio_mode;
+       hwif->set_dma_mode              = tmp_hwif->set_dma_mode;
+       hwif->mdma_filter               = tmp_hwif->mdma_filter;
        hwif->udma_filter               = tmp_hwif->udma_filter;
        hwif->selectproc                = tmp_hwif->selectproc;
        hwif->reset_poll                = tmp_hwif->reset_poll;
@@ -491,7 +416,6 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
        hwif->dma_exec_cmd              = tmp_hwif->dma_exec_cmd;
        hwif->dma_start                 = tmp_hwif->dma_start;
        hwif->ide_dma_end               = tmp_hwif->ide_dma_end;
-       hwif->ide_dma_check             = tmp_hwif->ide_dma_check;
        hwif->ide_dma_on                = tmp_hwif->ide_dma_on;
        hwif->dma_off_quietly           = tmp_hwif->dma_off_quietly;
        hwif->ide_dma_test_irq          = tmp_hwif->ide_dma_test_irq;
@@ -896,7 +820,7 @@ int set_using_dma(ide_drive_t *drive, int arg)
        if (!drive->id || !(drive->id->capability & 1))
                goto out;
 
-       if (hwif->ide_dma_check == NULL)
+       if (hwif->ide_dma_on == NULL)
                goto out;
 
        err = -EBUSY;
@@ -940,8 +864,9 @@ int set_pio_mode(ide_drive_t *drive, int arg)
        if (arg < 0 || arg > 255)
                return -EINVAL;
 
-       if (!HWIF(drive)->tuneproc)
+       if (drive->hwif->set_pio_mode == NULL)
                return -ENOSYS;
+
        if (drive->special.b.set_tune)
                return -EBUSY;
        ide_init_drive_cmd(&rq);
@@ -988,6 +913,7 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
        struct request rq;
        struct request_pm_state rqpm;
        ide_task_t args;
+       int ret;
 
        /* Call ACPI _GTM only once */
        if (!(drive->dn % 2))
@@ -1004,7 +930,14 @@ static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
                mesg.event = PM_EVENT_FREEZE;
        rqpm.pm_state = mesg.event;
 
-       return ide_do_drive_cmd(drive, &rq, ide_wait);
+       ret = ide_do_drive_cmd(drive, &rq, ide_wait);
+       /* only call ACPI _PS3 after both drivers are suspended */
+       if (!ret && (((drive->dn % 2) && hwif->drives[0].present
+                && hwif->drives[1].present)
+                || !hwif->drives[0].present
+                || !hwif->drives[1].present))
+               ide_acpi_set_state(hwif, 0);
+       return ret;
 }
 
 static int generic_ide_resume(struct device *dev)
@@ -1017,8 +950,10 @@ static int generic_ide_resume(struct device *dev)
        int err;
 
        /* Call ACPI _STM only once */
-       if (!(drive->dn % 2))
+       if (!(drive->dn % 2)) {
+               ide_acpi_set_state(hwif, 1);
                ide_acpi_push_timing(hwif);
+       }
 
        ide_acpi_exec_tfs(drive);
 
@@ -1171,10 +1106,6 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
                        return 0;
                }
 
-               case CDROMEJECT:
-               case CDROMCLOSETRAY:
-                       return scsi_cmd_ioctl(file, bdev->bd_disk, cmd, p);
-
                case HDIO_GET_BUSSTATE:
                        if (!capable(CAP_SYS_ADMIN))
                                return -EACCES;
@@ -1465,7 +1396,7 @@ static int __init ide_setup(char *s)
                 */
                static const char *ide_words[] = {
                        "noprobe", "serialize", "minus3", "minus4",
-                       "reset", "dma", "ata66", "minus8", "minus9",
+                       "reset", "minus6", "ata66", "minus8", "minus9",
                        "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb",
                        "dtc2278", "umc8672", "ali14xx", NULL };
                hw = s[3] - '0';
@@ -1544,6 +1475,7 @@ static int __init ide_setup(char *s)
                        case -10: /* minus10 */
                        case -9: /* minus9 */
                        case -8: /* minus8 */
+                       case -6:
                        case -4:
                        case -3:
                                goto bad_option;
@@ -1558,9 +1490,6 @@ static int __init ide_setup(char *s)
 #else
                                goto bad_hwif;
 #endif
-                       case -6: /* dma */
-                               hwif->autodma = 1;
-                               goto obsolete_option;
                        case -5: /* "reset" */
                                hwif->reset = 1;
                                goto obsolete_option;
@@ -1729,20 +1658,13 @@ static struct device_attribute ide_dev_attrs[] = {
        __ATTR_NULL
 };
 
-static int ide_uevent(struct device *dev, char **envp, int num_envp,
-                     char *buffer, int buffer_size)
+static int ide_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
        ide_drive_t *drive = to_ide_device(dev);
-       int i = 0;
-       int length = 0;
-
-       add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
-                      "MEDIA=%s", media_string(drive));
-       add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
-                      "DRIVENAME=%s", drive->name);
-       add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
-                      "MODALIAS=ide:m-%s", media_string(drive));
-       envp[i] = NULL;
+
+       add_uevent_var(env, "MEDIA=%s", media_string(drive));
+       add_uevent_var(env, "DRIVENAME=%s", drive->name);
+       add_uevent_var(env, "MODALIAS=ide:m-%s", media_string(drive));
        return 0;
 }