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authorLinus Torvalds <torvalds@g5.osdl.org>2006-09-24 10:19:56 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-24 10:19:56 -0700
commita68aa1cc6f3203b8a332683ebde67a00f39eec43 (patch)
treec05bd86850d8e0d0fb096a4b5f8d9f268b5561e8 /drivers/ata/sata_promise.h
parenta319a2773a13bab56a0d0b3744ba8703324313b5 (diff)
parent23930fa1cebfea6f79881c588ccd1b0781e49e3f (diff)
downloadlinux-a68aa1cc6f3203b8a332683ebde67a00f39eec43.tar.gz
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: (50 commits) [libata] Delete pata_it8172 driver [PATCH] libata: improve handling of diagostic fail (and hardware that misreports it) [PATCH] libata: fix non-uniform ports handling Fix libata resource conflict for legacy mode [libata] ata_piix: build fix [PATCH] pata_amd: Check enable bits on Nvidia [PATCH] Update SiS PATA [libata] Add pata_jmicron driver to Kconfig, Makefile [libata #pata-drivers] Trim trailing whitespace. [libata] Trim trailing whitespace. [libata] Add a bunch of PATA drivers. Rename libata-bmdma.c to libata-sff.c. libata: Grand renaming. Clean up drivers/ata/Kconfig a bit. [PATCH] CONFIG_PM=n slim: drivers/scsi/sata_sil* [PATCH] sata_via: Add SATA support for vt8237a [PATCH] libata: change path to libata in libata.tmpl [PATCH] libata: s/CONFIG_SCSI_SATA/CONFIG_[S]ATA/g in pci/quirks.c libata: Make sure drivers/ata is a separate Kconfig menu [libata] ata_piix: add missing kfree() ...
Diffstat (limited to 'drivers/ata/sata_promise.h')
-rw-r--r--drivers/ata/sata_promise.h157
1 files changed, 157 insertions, 0 deletions
diff --git a/drivers/ata/sata_promise.h b/drivers/ata/sata_promise.h
new file mode 100644
index 0000000000000..6ee5e190262de
--- /dev/null
+++ b/drivers/ata/sata_promise.h
@@ -0,0 +1,157 @@
+/*
+ * sata_promise.h - Promise SATA common definitions and inline funcs
+ *
+ * Copyright 2003-2004 Red Hat, Inc.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * libata documentation is available via 'make {ps|pdf}docs',
+ * as Documentation/DocBook/libata.*
+ *
+ */
+
+#ifndef __SATA_PROMISE_H__
+#define __SATA_PROMISE_H__
+
+#include <linux/ata.h>
+
+enum pdc_packet_bits {
+ PDC_PKT_READ = (1 << 2),
+ PDC_PKT_NODATA = (1 << 3),
+
+ PDC_PKT_SIZEMASK = (1 << 7) | (1 << 6) | (1 << 5),
+ PDC_PKT_CLEAR_BSY = (1 << 4),
+ PDC_PKT_WAIT_DRDY = (1 << 3) | (1 << 4),
+ PDC_LAST_REG = (1 << 3),
+
+ PDC_REG_DEVCTL = (1 << 3) | (1 << 2) | (1 << 1),
+};
+
+static inline unsigned int pdc_pkt_header(struct ata_taskfile *tf,
+ dma_addr_t sg_table,
+ unsigned int devno, u8 *buf)
+{
+ u8 dev_reg;
+ u32 *buf32 = (u32 *) buf;
+
+ /* set control bits (byte 0), zero delay seq id (byte 3),
+ * and seq id (byte 2)
+ */
+ switch (tf->protocol) {
+ case ATA_PROT_DMA:
+ if (!(tf->flags & ATA_TFLAG_WRITE))
+ buf32[0] = cpu_to_le32(PDC_PKT_READ);
+ else
+ buf32[0] = 0;
+ break;
+
+ case ATA_PROT_NODATA:
+ buf32[0] = cpu_to_le32(PDC_PKT_NODATA);
+ break;
+
+ default:
+ BUG();
+ break;
+ }
+
+ buf32[1] = cpu_to_le32(sg_table); /* S/G table addr */
+ buf32[2] = 0; /* no next-packet */
+
+ if (devno == 0)
+ dev_reg = ATA_DEVICE_OBS;
+ else
+ dev_reg = ATA_DEVICE_OBS | ATA_DEV1;
+
+ /* select device */
+ buf[12] = (1 << 5) | PDC_PKT_CLEAR_BSY | ATA_REG_DEVICE;
+ buf[13] = dev_reg;
+
+ /* device control register */
+ buf[14] = (1 << 5) | PDC_REG_DEVCTL;
+ buf[15] = tf->ctl;
+
+ return 16; /* offset of next byte */
+}
+
+static inline unsigned int pdc_pkt_footer(struct ata_taskfile *tf, u8 *buf,
+ unsigned int i)
+{
+ if (tf->flags & ATA_TFLAG_DEVICE) {
+ buf[i++] = (1 << 5) | ATA_REG_DEVICE;
+ buf[i++] = tf->device;
+ }
+
+ /* and finally the command itself; also includes end-of-pkt marker */
+ buf[i++] = (1 << 5) | PDC_LAST_REG | ATA_REG_CMD;
+ buf[i++] = tf->command;
+
+ return i;
+}
+
+static inline unsigned int pdc_prep_lba28(struct ata_taskfile *tf, u8 *buf, unsigned int i)
+{
+ /* the "(1 << 5)" should be read "(count << 5)" */
+
+ /* ATA command block registers */
+ buf[i++] = (1 << 5) | ATA_REG_FEATURE;
+ buf[i++] = tf->feature;
+
+ buf[i++] = (1 << 5) | ATA_REG_NSECT;
+ buf[i++] = tf->nsect;
+
+ buf[i++] = (1 << 5) | ATA_REG_LBAL;
+ buf[i++] = tf->lbal;
+
+ buf[i++] = (1 << 5) | ATA_REG_LBAM;
+ buf[i++] = tf->lbam;
+
+ buf[i++] = (1 << 5) | ATA_REG_LBAH;
+ buf[i++] = tf->lbah;
+
+ return i;
+}
+
+static inline unsigned int pdc_prep_lba48(struct ata_taskfile *tf, u8 *buf, unsigned int i)
+{
+ /* the "(2 << 5)" should be read "(count << 5)" */
+
+ /* ATA command block registers */
+ buf[i++] = (2 << 5) | ATA_REG_FEATURE;
+ buf[i++] = tf->hob_feature;
+ buf[i++] = tf->feature;
+
+ buf[i++] = (2 << 5) | ATA_REG_NSECT;
+ buf[i++] = tf->hob_nsect;
+ buf[i++] = tf->nsect;
+
+ buf[i++] = (2 << 5) | ATA_REG_LBAL;
+ buf[i++] = tf->hob_lbal;
+ buf[i++] = tf->lbal;
+
+ buf[i++] = (2 << 5) | ATA_REG_LBAM;
+ buf[i++] = tf->hob_lbam;
+ buf[i++] = tf->lbam;
+
+ buf[i++] = (2 << 5) | ATA_REG_LBAH;
+ buf[i++] = tf->hob_lbah;
+ buf[i++] = tf->lbah;
+
+ return i;
+}
+
+
+#endif /* __SATA_PROMISE_H__ */