omap: i2c: add a timeout to the busy waiting

[safe/jmp/linux-2.6] / drivers / ide / ide-io-std.c

diff --git a/drivers/ide/ide-io-std.c b/drivers/ide/ide-io-std.c
index f06940d..46721c4 100644 (file)
--- a/drivers/ide/ide-io-std.c
+++ b/drivers/ide/ide-io-std.c
@@ -73,113 +73,69 @@ void ide_write_devctl(ide_hwif_t *hwif, u8 ctl)
 }
 EXPORT_SYMBOL_GPL(ide_write_devctl);
 
-void ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
+void ide_dev_select(ide_drive_t *drive)
+{
+       ide_hwif_t *hwif = drive->hwif;
+       u8 select = drive->select | ATA_DEVICE_OBS;
+
+       if (hwif->host_flags & IDE_HFLAG_MMIO)
+               writeb(select, (void __iomem *)hwif->io_ports.device_addr);
+       else
+               outb(select, hwif->io_ports.device_addr);
+}
+EXPORT_SYMBOL_GPL(ide_dev_select);
+
+void ide_tf_load(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid)
 {
        ide_hwif_t *hwif = drive->hwif;
        struct ide_io_ports *io_ports = &hwif->io_ports;
-       struct ide_taskfile *tf = &cmd->tf;
        void (*tf_outb)(u8 addr, unsigned long port);
        u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
-       u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
 
        if (mmio)
                tf_outb = ide_mm_outb;
        else
                tf_outb = ide_outb;
 
-       if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
-               HIHI = 0xFF;
-
-       if (cmd->ftf_flags & IDE_FTFLAG_OUT_DATA) {
-               u8 data[2] = { tf->data, tf->hob_data };
-
-               ide_output_data(drive, cmd, data, 2);
-       }
-
-       if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
-               tf_outb(tf->hob_feature, io_ports->feature_addr);
-       if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
-               tf_outb(tf->hob_nsect, io_ports->nsect_addr);
-       if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
-               tf_outb(tf->hob_lbal, io_ports->lbal_addr);
-       if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
-               tf_outb(tf->hob_lbam, io_ports->lbam_addr);
-       if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
-               tf_outb(tf->hob_lbah, io_ports->lbah_addr);
-
-       if (cmd->tf_flags & IDE_TFLAG_OUT_FEATURE)
+       if (valid & IDE_VALID_FEATURE)
                tf_outb(tf->feature, io_ports->feature_addr);
-       if (cmd->tf_flags & IDE_TFLAG_OUT_NSECT)
+       if (valid & IDE_VALID_NSECT)
                tf_outb(tf->nsect, io_ports->nsect_addr);
-       if (cmd->tf_flags & IDE_TFLAG_OUT_LBAL)
+       if (valid & IDE_VALID_LBAL)
                tf_outb(tf->lbal, io_ports->lbal_addr);
-       if (cmd->tf_flags & IDE_TFLAG_OUT_LBAM)
+       if (valid & IDE_VALID_LBAM)
                tf_outb(tf->lbam, io_ports->lbam_addr);
-       if (cmd->tf_flags & IDE_TFLAG_OUT_LBAH)
+       if (valid & IDE_VALID_LBAH)
                tf_outb(tf->lbah, io_ports->lbah_addr);
-
-       if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE)
-               tf_outb((tf->device & HIHI) | drive->select,
-                        io_ports->device_addr);
+       if (valid & IDE_VALID_DEVICE)
+               tf_outb(tf->device, io_ports->device_addr);
 }
 EXPORT_SYMBOL_GPL(ide_tf_load);
 
-void ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
+void ide_tf_read(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid)
 {
        ide_hwif_t *hwif = drive->hwif;
        struct ide_io_ports *io_ports = &hwif->io_ports;
-       struct ide_taskfile *tf = &cmd->tf;
-       void (*tf_outb)(u8 addr, unsigned long port);
        u8 (*tf_inb)(unsigned long port);
        u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
 
-       if (mmio) {
-               tf_outb = ide_mm_outb;
+       if (mmio)
                tf_inb  = ide_mm_inb;
-       } else {
-               tf_outb = ide_outb;
+       else
                tf_inb  = ide_inb;
-       }
-
-       if (cmd->ftf_flags & IDE_FTFLAG_IN_DATA) {
-               u8 data[2];
 
-               ide_input_data(drive, cmd, data, 2);
-
-               tf->data = data[0];
-               tf->hob_data = data[1];
-       }
-
-       /* be sure we're looking at the low order bits */
-       tf_outb(ATA_DEVCTL_OBS, io_ports->ctl_addr);
-
-       if (cmd->tf_flags & IDE_TFLAG_IN_ERROR)
+       if (valid & IDE_VALID_ERROR)
                tf->error  = tf_inb(io_ports->feature_addr);
-       if (cmd->tf_flags & IDE_TFLAG_IN_NSECT)
+       if (valid & IDE_VALID_NSECT)
                tf->nsect  = tf_inb(io_ports->nsect_addr);
-       if (cmd->tf_flags & IDE_TFLAG_IN_LBAL)
+       if (valid & IDE_VALID_LBAL)
                tf->lbal   = tf_inb(io_ports->lbal_addr);
-       if (cmd->tf_flags & IDE_TFLAG_IN_LBAM)
+       if (valid & IDE_VALID_LBAM)
                tf->lbam   = tf_inb(io_ports->lbam_addr);
-       if (cmd->tf_flags & IDE_TFLAG_IN_LBAH)
+       if (valid & IDE_VALID_LBAH)
                tf->lbah   = tf_inb(io_ports->lbah_addr);
-       if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE)
+       if (valid & IDE_VALID_DEVICE)
                tf->device = tf_inb(io_ports->device_addr);
-
-       if (cmd->tf_flags & IDE_TFLAG_LBA48) {
-               tf_outb(ATA_HOB | ATA_DEVCTL_OBS, io_ports->ctl_addr);
-
-               if (cmd->tf_flags & IDE_TFLAG_IN_HOB_ERROR)
-                       tf->hob_error = tf_inb(io_ports->feature_addr);
-               if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
-                       tf->hob_nsect = tf_inb(io_ports->nsect_addr);
-               if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
-                       tf->hob_lbal  = tf_inb(io_ports->lbal_addr);
-               if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
-                       tf->hob_lbam  = tf_inb(io_ports->lbam_addr);
-               if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
-                       tf->hob_lbah  = tf_inb(io_ports->lbah_addr);
-       }
 }
 EXPORT_SYMBOL_GPL(ide_tf_read);
 
@@ -295,6 +251,7 @@ const struct ide_tp_ops default_tp_ops = {
        .read_altstatus         = ide_read_altstatus,
        .write_devctl           = ide_write_devctl,
 
+       .dev_select             = ide_dev_select,
        .tf_load                = ide_tf_load,
        .tf_read                = ide_tf_read,