From: Albert Lee <albertcc@tw.ibm.com>
Date: Tue, 27 Sep 2005 09:38:03 +0000 (+0800)
Subject: [PATCH] libata: interrupt driven pio for libata-core
X-Git-Tag: v2.6.18-rc1~1079^2~98^2~13^2~105
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=312f7da2824c82800ee78d6190f12854456957af;p=pandora-kernel.git

[PATCH] libata: interrupt driven pio for libata-core

- add PIO_ST_FIRST for the state before sending ATAPI CDB or sending
"ATA PIO data out" first data block.
- add ATA_TFLAG_POLLING and ATA_DFLAG_CDB_INTR flags
- remove the ATA_FLAG_NOINTR flag since the interrupt handler is now
aware of the states
- modify ata_pio_sector() and atapi_pio_bytes() to work in the interrupt
context
- modify the ata_host_intr() to handle PIO interrupts
- modify ata_qc_issue_prot() to initialize states
- atapi_packet_task() changed to handle "ATA PIO data out" first data block
- support the pre-ATA4 ATAPI device which raise interrupt when ready to
receive CDB

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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