diff options
Diffstat (limited to 'drivers/scsi/sata_promise.h')
-rw-r--r-- | drivers/scsi/sata_promise.h | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/drivers/scsi/sata_promise.h b/drivers/scsi/sata_promise.h deleted file mode 100644 index 6ee5e190262..00000000000 --- a/drivers/scsi/sata_promise.h +++ /dev/null @@ -1,157 +0,0 @@ -/* - * 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__ */ |