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 | |