| 1 | /* $NetBSD: pciide_ixp_reg.h,v 1.5 2008/04/29 06:53:03 martin Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 2004 The NetBSD Foundation. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 17 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 18 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 26 | * POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | /* All values gathered from the linux driver. */ |
| 30 | |
| 31 | #define IXP_PIO_TIMING 0x40 |
| 32 | #define IXP_MDMA_TIMING 0x44 |
| 33 | #define IXP_PIO_CTL 0x48 |
| 34 | #define IXP_PIO_MODE 0x4a |
| 35 | #define IXP_UDMA_CTL 0x54 |
| 36 | #define IXP_UDMA_MODE 0x56 |
| 37 | |
| 38 | /* First 4 bits of UDMA_CTL enable or disable UDMA for the drive */ |
| 39 | #define IXP_UDMA_ENABLE(u, c, d) do { \ |
| 40 | (u) |= (1 << (2 * (c) + (d))); \ |
| 41 | } while (0) |
| 42 | #define IXP_UDMA_DISABLE(u, c, d) do { \ |
| 43 | (u) &= ~(1 << (2 * (c) + (d))); \ |
| 44 | } while (0) |
| 45 | |
| 46 | /* |
| 47 | * UDMA_MODE has 4 bits per drive, though only 3 are actually used |
| 48 | * Note that in this macro u is the whole |
| 49 | * UDMA_CTL+UDMA_MODE register (32bits). |
| 50 | * PIO_MODE works just the same. |
| 51 | */ |
| 52 | #define IXP_SET_MODE(u, c, d, m) do { \ |
| 53 | int __ixpshift = 16 + 8*(c) + 4*(d); \ |
| 54 | (u) &= ~(0x7 << __ixpshift); \ |
| 55 | (u) |= (((m) & 0x7) << __ixpshift); \ |
| 56 | } while (0) |
| 57 | |
| 58 | /* |
| 59 | * MDMA_TIMING has one byte per drive. |
| 60 | * PIO_TIMING works just the same. |
| 61 | */ |
| 62 | #define IXP_SET_TIMING(m, c, d, t) do { \ |
| 63 | int __ixpshift = 16*(c) + 8*(d); \ |
| 64 | (m) &= ~(0xff << __ixpshift); \ |
| 65 | (m) |= ((t) & 0xff) << __ixpshift; \ |
| 66 | } while (0) |
| 67 | |