luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

trm290: do hook dma_host_{on,off} methods (take 2)

Browse Source 
Using default methods caused the chip's DMA PRD count registers, inadvertently
starting DMA!  While fixing it, also do:

- get rid of the 'ide_' prefixes in several functions for which the prefix in
  the method's name has been 'ide_' ectomized already;

- align the code hooking the IDE DMA methods in init_hwif_trm290()...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Sergei Shtylyov 2008-01-10 23:03:42 +01:00 committed by Bartlomiej Zolnierkiewicz
parent b98f8803cc
commit 93c0b56080
1 changed files with 20 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/ide/pci/trm290.c
View File

@ -1,7 +1,8 @@
/*
* linux/drivers/ide/pci/trm290.c Version 1.02 Mar. 18, 2000
* linux/drivers/ide/pci/trm290.c Version 1.05 Dec. 26, 2007
*
* Copyright (c) 1997-1998 Mark Lord
* Copyright (c) 2007 MontaVista Software, Inc. <source@mvista.com>
* May be copied or modified under the terms of the GNU General Public License
*
* June 22, 2004 - get rid of check_region
@ -177,7 +178,7 @@ static void trm290_selectproc (ide_drive_t *drive)
trm290_prepare_drive(drive, drive->using_dma);
}
static void trm290_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
static void trm290_dma_exec_cmd(ide_drive_t *drive, u8 command)
{
BUG_ON(HWGROUP(drive)->handler != NULL); /* paranoia check */
ide_set_handler(drive, &ide_dma_intr, WAIT_CMD, NULL);
@ -185,7 +186,7 @@ static void trm290_ide_dma_exec_cmd(ide_drive_t *drive, u8 command)
outb(command, IDE_COMMAND_REG);
}
static int trm290_ide_dma_setup(ide_drive_t *drive)
static int trm290_dma_setup(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = hwif->hwgroup->rq;
@ -215,7 +216,7 @@ static int trm290_ide_dma_setup(ide_drive_t *drive)
return 0;
}
static void trm290_ide_dma_start(ide_drive_t *drive)
static void trm290_dma_start(ide_drive_t *drive)
{
}
@ -240,6 +241,14 @@ static int trm290_ide_dma_test_irq (ide_drive_t *drive)
return (status == 0x00ff);
}
static void trm290_dma_host_on(ide_drive_t *drive)
{
}
static void trm290_dma_host_off(ide_drive_t *drive)
{
}
static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
{
unsigned int cfgbase = 0;
@ -280,11 +289,13 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
ide_setup_dma(hwif, (hwif->config_data + 4) ^ (hwif->channel ? 0x0080 : 0x0000), 3);
hwif->dma_setup = &trm290_ide_dma_setup;
hwif->dma_exec_cmd = &trm290_ide_dma_exec_cmd;
hwif->dma_start = &trm290_ide_dma_start;
hwif->ide_dma_end = &trm290_ide_dma_end;
hwif->ide_dma_test_irq = &trm290_ide_dma_test_irq;
hwif->dma_host_off = &trm290_dma_host_off;
hwif->dma_host_on = &trm290_dma_host_on;
hwif->dma_setup = &trm290_dma_setup;
hwif->dma_exec_cmd = &trm290_dma_exec_cmd;
hwif->dma_start = &trm290_dma_start;
hwif->ide_dma_end = &trm290_ide_dma_end;
hwif->ide_dma_test_irq = &trm290_ide_dma_test_irq;
hwif->selectproc = &trm290_selectproc;
#if 1