xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ide: remove ide_execute_pkt_cmd() (v2)

Browse Source 
* Pass command structure to ide_execute_command() and skip
  __ide_set_handler() for ATAPI protocols on non-DRQ devices.

* Convert ide_issue_pc() to always use ide_execute_command()
  and remove no longer needed ide_execute_pkt_cmd().

v2:
* Fix for non-DRQ devices (based on report from Borislav).

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2009-03-27 12:46:47 +01:00
parent 22117d6eaa
commit 35b5d0be3d
4 changed files with 19 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/ide/ide-iops.c
View File

@@ -451,7 +451,7 @@ EXPORT_SYMBOL(ide_set_handler);
/**
* ide_execute_command - execute an IDE command
* @drive: IDE drive to issue the command against
* @command: command byte to write
* @cmd: command
* @handler: handler for next phase
* @timeout: timeout for command
*
@@ -461,15 +461,18 @@ EXPORT_SYMBOL(ide_set_handler);
* should go via this function or do equivalent locking.
*/
void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
unsigned timeout)
void ide_execute_command(ide_drive_t *drive, struct ide_cmd *cmd,
ide_handler_t *handler, unsigned timeout)
{
ide_hwif_t *hwif = drive->hwif;
unsigned long flags;
spin_lock_irqsave(&hwif->lock, flags);
__ide_set_handler(drive, handler, timeout);
hwif->tp_ops->exec_command(hwif, cmd);
if ((cmd->protocol != ATAPI_PROT_DMA &&
cmd->protocol != ATAPI_PROT_PIO) ||
(drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT))
__ide_set_handler(drive, handler, timeout);
hwif->tp_ops->exec_command(hwif, cmd->tf.command);
/*
* Drive takes 400nS to respond, we must avoid the IRQ being
* serviced before that.
@@ -480,18 +483,6 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
spin_unlock_irqrestore(&hwif->lock, flags);
}
void ide_execute_pkt_cmd(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
unsigned long flags;
spin_lock_irqsave(&hwif->lock, flags);
hwif->tp_ops->exec_command(hwif, ATA_CMD_PACKET);
ndelay(400);
spin_unlock_irqrestore(&hwif->lock, flags);
}
EXPORT_SYMBOL_GPL(ide_execute_pkt_cmd);
/*
* ide_wait_not_busy() waits for the currently selected device on the hwif
* to report a non-busy status, see comments in ide_probe_port().