pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Memory mapped access to ISA IO space. |
| 3 | * |
| 4 | * Copyright (c) 2006 Fabrice Bellard |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 5 | * |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
| 24 | |
pbrook | 87ecb68 | 2007-11-17 17:14:51 +0000 | [diff] [blame] | 25 | #include "hw.h" |
| 26 | #include "isa.h" |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 27 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 28 | static void isa_mmio_writeb (void *opaque, target_phys_addr_t addr, |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 29 | uint32_t val) |
| 30 | { |
Blue Swirl | afcea8c | 2009-09-20 16:05:47 +0000 | [diff] [blame] | 31 | cpu_outb(addr & IOPORTS_MASK, val); |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 32 | } |
| 33 | |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 34 | static void isa_mmio_writew_be(void *opaque, target_phys_addr_t addr, |
| 35 | uint32_t val) |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 36 | { |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 37 | val = bswap16(val); |
Blue Swirl | afcea8c | 2009-09-20 16:05:47 +0000 | [diff] [blame] | 38 | cpu_outw(addr & IOPORTS_MASK, val); |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 39 | } |
| 40 | |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 41 | static void isa_mmio_writew_le(void *opaque, target_phys_addr_t addr, |
| 42 | uint32_t val) |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 43 | { |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 44 | cpu_outw(addr & IOPORTS_MASK, val); |
| 45 | } |
| 46 | |
| 47 | static void isa_mmio_writel_be(void *opaque, target_phys_addr_t addr, |
| 48 | uint32_t val) |
| 49 | { |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 50 | val = bswap32(val); |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 51 | cpu_outl(addr & IOPORTS_MASK, val); |
| 52 | } |
| 53 | |
| 54 | static void isa_mmio_writel_le(void *opaque, target_phys_addr_t addr, |
| 55 | uint32_t val) |
| 56 | { |
Blue Swirl | afcea8c | 2009-09-20 16:05:47 +0000 | [diff] [blame] | 57 | cpu_outl(addr & IOPORTS_MASK, val); |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 58 | } |
| 59 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 60 | static uint32_t isa_mmio_readb (void *opaque, target_phys_addr_t addr) |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 61 | { |
| 62 | uint32_t val; |
| 63 | |
Blue Swirl | afcea8c | 2009-09-20 16:05:47 +0000 | [diff] [blame] | 64 | val = cpu_inb(addr & IOPORTS_MASK); |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 65 | return val; |
| 66 | } |
| 67 | |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 68 | static uint32_t isa_mmio_readw_be(void *opaque, target_phys_addr_t addr) |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 69 | { |
| 70 | uint32_t val; |
| 71 | |
Blue Swirl | afcea8c | 2009-09-20 16:05:47 +0000 | [diff] [blame] | 72 | val = cpu_inw(addr & IOPORTS_MASK); |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 73 | val = bswap16(val); |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 74 | return val; |
| 75 | } |
| 76 | |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 77 | static uint32_t isa_mmio_readw_le(void *opaque, target_phys_addr_t addr) |
| 78 | { |
| 79 | uint32_t val; |
| 80 | |
| 81 | val = cpu_inw(addr & IOPORTS_MASK); |
| 82 | return val; |
| 83 | } |
| 84 | |
| 85 | static uint32_t isa_mmio_readl_be(void *opaque, target_phys_addr_t addr) |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 86 | { |
| 87 | uint32_t val; |
| 88 | |
Blue Swirl | afcea8c | 2009-09-20 16:05:47 +0000 | [diff] [blame] | 89 | val = cpu_inl(addr & IOPORTS_MASK); |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 90 | val = bswap32(val); |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 91 | return val; |
| 92 | } |
| 93 | |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 94 | static uint32_t isa_mmio_readl_le(void *opaque, target_phys_addr_t addr) |
| 95 | { |
| 96 | uint32_t val; |
| 97 | |
| 98 | val = cpu_inl(addr & IOPORTS_MASK); |
| 99 | return val; |
| 100 | } |
| 101 | |
| 102 | static CPUWriteMemoryFunc * const isa_mmio_write_be[] = { |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 103 | &isa_mmio_writeb, |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 104 | &isa_mmio_writew_be, |
| 105 | &isa_mmio_writel_be, |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 106 | }; |
| 107 | |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 108 | static CPUReadMemoryFunc * const isa_mmio_read_be[] = { |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 109 | &isa_mmio_readb, |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 110 | &isa_mmio_readw_be, |
| 111 | &isa_mmio_readl_be, |
| 112 | }; |
| 113 | |
| 114 | static CPUWriteMemoryFunc * const isa_mmio_write_le[] = { |
| 115 | &isa_mmio_writeb, |
| 116 | &isa_mmio_writew_le, |
| 117 | &isa_mmio_writel_le, |
| 118 | }; |
| 119 | |
| 120 | static CPUReadMemoryFunc * const isa_mmio_read_le[] = { |
| 121 | &isa_mmio_readb, |
| 122 | &isa_mmio_readw_le, |
| 123 | &isa_mmio_readl_le, |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 124 | }; |
| 125 | |
| 126 | static int isa_mmio_iomemtype = 0; |
| 127 | |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 128 | void isa_mmio_init(target_phys_addr_t base, target_phys_addr_t size, int be) |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 129 | { |
| 130 | if (!isa_mmio_iomemtype) { |
Blue Swirl | 84108e1 | 2010-03-21 19:47:09 +0000 | [diff] [blame] | 131 | if (be) { |
| 132 | isa_mmio_iomemtype = cpu_register_io_memory(isa_mmio_read_be, |
| 133 | isa_mmio_write_be, |
| 134 | NULL); |
| 135 | } else { |
| 136 | isa_mmio_iomemtype = cpu_register_io_memory(isa_mmio_read_le, |
| 137 | isa_mmio_write_le, |
| 138 | NULL); |
| 139 | } |
pbrook | aef445b | 2006-09-18 01:15:29 +0000 | [diff] [blame] | 140 | } |
| 141 | cpu_register_physical_memory(base, size, isa_mmio_iomemtype); |
| 142 | } |