From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: [PATCH 04/13] libata: add ATAPI_* cmd types and implement atapi_cmd_type() Date: Wed, 28 Nov 2007 00:13:50 +0900 Message-ID: <11961764401134-git-send-email-htejun@gmail.com> References: <11961764391983-git-send-email-htejun@gmail.com> Return-path: Received: from ro-out-1112.google.com ([72.14.202.178]:54873 "EHLO ro-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756134AbXK0POI (ORCPT ); Tue, 27 Nov 2007 10:14:08 -0500 Received: by ro-out-1112.google.com with SMTP id p4so1688067roc for ; Tue, 27 Nov 2007 07:14:07 -0800 (PST) In-Reply-To: <11961764391983-git-send-email-htejun@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: jeff@garzik.org, linux-ide@vger.kernel.org, alan@lxorguk.ukuu.org.uk, liml@rtr.ca, albertl@mail.com, jens.axboe@oracle.com Cc: Tejun Heo Add ATAPI command types - ATAPI_READ, WRITE, RW_BUF, READ_CD and MISC, and implement atapi_cmd_type() which takes SCSI opcode and returns to which class the opcode belongs. This will be used later to improve ATAPI handling. Signed-off-by: Tejun Heo --- include/linux/libata.h | 28 ++++++++++++++++++++++++++++ 1 files changed, 28 insertions(+), 0 deletions(-) diff --git a/include/linux/libata.h b/include/linux/libata.h index 62d09c8..72df408 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -35,6 +35,7 @@ #include #include #include +#include /* * Define if arch has non-standard setup. This is a _PCI_ standard @@ -345,6 +346,12 @@ enum { ATA_DMA_MASK_ATA = (1 << 0), /* DMA on ATA Disk */ ATA_DMA_MASK_ATAPI = (1 << 1), /* DMA on ATAPI */ ATA_DMA_MASK_CFA = (1 << 2), /* DMA on CF Card */ + + /* ATAPI command types */ + ATAPI_READ = 0, /* READs */ + ATAPI_WRITE = 1, /* WRITEs */ + ATAPI_READ_CD = 2, /* READ CD [MSF] */ + ATAPI_MISC = 3, /* the rest */ }; enum ata_xfer_mask { @@ -1407,6 +1414,27 @@ static inline int ata_try_flush_cache(const struct ata_device *dev) ata_id_has_flush_ext(dev->id); } +static inline int atapi_cmd_type(u8 opcode) +{ + switch (opcode) { + case GPCMD_READ_10: + case GPCMD_READ_12: + return ATAPI_READ; + + case GPCMD_WRITE_10: + case GPCMD_WRITE_12: + case GPCMD_WRITE_AND_VERIFY_10: + return ATAPI_WRITE; + + case GPCMD_READ_CD: + case GPCMD_READ_CD_MSF: + return ATAPI_READ_CD; + + default: + return ATAPI_MISC; + } +} + static inline unsigned int ac_err_mask(u8 status) { if (status & (ATA_BUSY | ATA_DRQ)) -- 1.5.2.4