From mboxrd@z Thu Jan 1 00:00:00 1970 From: Borislav Petkov Subject: [PATCH 01/10] ide: add ide_drive_t.dma flag Date: Sun, 14 Sep 2008 13:35:49 +0200 Message-ID: <1221392158-3848-2-git-send-email-petkovbb@gmail.com> References: <1221392158-3848-1-git-send-email-petkovbb@gmail.com> Return-path: Received: from fg-out-1718.google.com ([72.14.220.159]:5793 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752876AbYINLgE (ORCPT ); Sun, 14 Sep 2008 07:36:04 -0400 Received: by fg-out-1718.google.com with SMTP id 19so1047391fgg.17 for ; Sun, 14 Sep 2008 04:36:02 -0700 (PDT) In-Reply-To: <1221392158-3848-1-git-send-email-petkovbb@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: bzolnier@gmail.com Cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, Borislav Petkov This flag is to accomodate ide-cd functionality into ide atapi. There should be no functionality change resulting from this patch. Signed-off-by: Borislav Petkov --- drivers/ide/ide-atapi.c | 9 +++++---- include/linux/ide.h | 1 + 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index a1d8c35..d557841 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -545,7 +545,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout, struct ide_atapi_pc *pc = drive->pc; ide_hwif_t *hwif = drive->hwif; u16 bcount; - u8 dma = 0, scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI); + u8 scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI); /* We haven't transferred any data yet */ pc->xferred = 0; @@ -566,15 +566,16 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout, (drive->dev_flags & IDE_DFLAG_USING_DMA)) { if (scsi) hwif->sg_mapped = 1; - dma = !hwif->dma_ops->dma_setup(drive); + drive->dma = !hwif->dma_ops->dma_setup(drive); if (scsi) hwif->sg_mapped = 0; } - if (!dma) + if (!drive->dma) pc->flags &= ~PC_FLAG_DMA_OK; - ide_pktcmd_tf_load(drive, scsi ? 0 : IDE_TFLAG_OUT_DEVICE, bcount, dma); + ide_pktcmd_tf_load(drive, scsi ? 0 : IDE_TFLAG_OUT_DEVICE, bcount, + drive->dma); /* Issue the packet command */ if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { diff --git a/include/linux/ide.h b/include/linux/ide.h index 540959f..7c1b00a 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -601,6 +601,7 @@ struct ide_drive_s { u8 select; /* basic drive/head select reg value */ u8 retry_pio; /* retrying dma capable host in pio */ u8 waiting_for_dma; /* dma currently in progress */ + u8 dma; /* atapi dma flag */ u8 quirk_list; /* considered quirky, set for a specific host */ u8 init_speed; /* transfer rate set at boot */ -- 1.5.5.1