Annotation of sys/dev/pci/pciide_ixp_reg.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: pciide_ixp_reg.h,v 1.1 2005/09/14 06:13:22 jsg Exp $ */
! 2: /* $NetBSD: pciide_ixp_reg.h,v 1.2 2005/02/27 00:27:33 perry Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 2004 The NetBSD Foundation.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to the NetBSD Foundation
! 9: * by Quentin Garnier.
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by the NetBSD
! 22: * Foundation, Inc. and its contributors.
! 23: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 24: * contributors may be used to endorse or promote products derived
! 25: * from this software without specific prior written permission.
! 26: *
! 27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 37: * POSSIBILITY OF SUCH DAMAGE.
! 38: */
! 39:
! 40: /* All values gathered from the linux driver. */
! 41:
! 42: #define IXP_PIO_TIMING 0x40
! 43: #define IXP_MDMA_TIMING 0x44
! 44: #define IXP_PIO_CTL 0x48
! 45: #define IXP_PIO_MODE 0x4a
! 46: #define IXP_UDMA_CTL 0x54
! 47: #define IXP_UDMA_MODE 0x56
! 48:
! 49: static const uint8_t ixp_pio_timings[] = {
! 50: 0x5d, 0x47, 0x34, 0x22, 0x20
! 51: };
! 52:
! 53: static const uint8_t ixp_mdma_timings[] = {
! 54: 0x77, 0x21, 0x20
! 55: };
! 56:
! 57: /* First 4 bits of UDMA_CTL enable or disable UDMA for the drive */
! 58: #define IXP_UDMA_ENABLE(u, c, d) do { \
! 59: (u) |= (1 << (2 * (c) + (d))); \
! 60: } while (0)
! 61: #define IXP_UDMA_DISABLE(u, c, d) do { \
! 62: (u) &= ~(1 << (2 * (c) + (d))); \
! 63: } while (0)
! 64:
! 65: /*
! 66: * UDMA_MODE has 4 bits per drive, though only 3 are actually used
! 67: * Note that in this macro u is the whole
! 68: * UDMA_CTL+UDMA_MODE register (32bits).
! 69: * PIO_MODE works just the same.
! 70: */
! 71: #define IXP_SET_MODE(u, c, d, m) do { \
! 72: int __ixpshift = 16 + 8*(c) + 4*(d); \
! 73: (u) &= ~(0x7 << __ixpshift); \
! 74: (u) |= (((m) & 0x7) << __ixpshift); \
! 75: } while (0)
! 76:
! 77: /*
! 78: * MDMA_TIMING has one byte per drive.
! 79: * PIO_TIMING works just the same.
! 80: */
! 81: #define IXP_SET_TIMING(m, c, d, t) do { \
! 82: int __ixpshift = 16*(c) + 8*(d); \
! 83: (m) &= ~(0xff << __ixpshift); \
! 84: (m) |= ((t) & 0xff) << __ixpshift; \
! 85: } while (0)
CVSweb