Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 1 | /* |
| 2 | * QEMU System Emulator |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * |
| 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 | /* |
| 25 | * splitted out ioport related stuffs from vl.c. |
| 26 | */ |
| 27 | |
| 28 | #include "ioport.h" |
| 29 | |
| 30 | /***********************************************************/ |
| 31 | /* IO Port */ |
| 32 | |
| 33 | //#define DEBUG_UNUSED_IOPORT |
| 34 | //#define DEBUG_IOPORT |
| 35 | |
Isaku Yamahata | fc7083b | 2009-07-14 19:10:42 +0900 | [diff] [blame] | 36 | #ifdef DEBUG_UNUSED_IOPORT |
| 37 | # define LOG_UNUSED_IOPORT(fmt, ...) fprintf(stderr, fmt, ## __VA_ARGS__) |
| 38 | #else |
| 39 | # define LOG_UNUSED_IOPORT(fmt, ...) do{ } while (0) |
| 40 | #endif |
| 41 | |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 42 | #ifdef DEBUG_IOPORT |
| 43 | # define LOG_IOPORT(...) qemu_log_mask(CPU_LOG_IOPORT, ## __VA_ARGS__) |
| 44 | #else |
| 45 | # define LOG_IOPORT(...) do { } while (0) |
| 46 | #endif |
| 47 | |
| 48 | /* XXX: use a two level table to limit memory usage */ |
| 49 | |
| 50 | static void *ioport_opaque[MAX_IOPORTS]; |
| 51 | static IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS]; |
| 52 | static IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS]; |
| 53 | |
| 54 | static IOPortReadFunc default_ioport_readb, default_ioport_readw, default_ioport_readl; |
| 55 | static IOPortWriteFunc default_ioport_writeb, default_ioport_writew, default_ioport_writel; |
| 56 | |
| 57 | static uint32_t ioport_read(int index, uint32_t address) |
| 58 | { |
Blue Swirl | 1dde6fc | 2009-09-06 16:32:13 +0000 | [diff] [blame] | 59 | static IOPortReadFunc * const default_func[3] = { |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 60 | default_ioport_readb, |
| 61 | default_ioport_readw, |
| 62 | default_ioport_readl |
| 63 | }; |
| 64 | IOPortReadFunc *func = ioport_read_table[index][address]; |
| 65 | if (!func) |
| 66 | func = default_func[index]; |
| 67 | return func(ioport_opaque[address], address); |
| 68 | } |
| 69 | |
| 70 | static void ioport_write(int index, uint32_t address, uint32_t data) |
| 71 | { |
Blue Swirl | 1dde6fc | 2009-09-06 16:32:13 +0000 | [diff] [blame] | 72 | static IOPortWriteFunc * const default_func[3] = { |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 73 | default_ioport_writeb, |
| 74 | default_ioport_writew, |
| 75 | default_ioport_writel |
| 76 | }; |
| 77 | IOPortWriteFunc *func = ioport_write_table[index][address]; |
| 78 | if (!func) |
| 79 | func = default_func[index]; |
| 80 | func(ioport_opaque[address], address, data); |
| 81 | } |
| 82 | |
| 83 | static uint32_t default_ioport_readb(void *opaque, uint32_t address) |
| 84 | { |
Isaku Yamahata | fc7083b | 2009-07-14 19:10:42 +0900 | [diff] [blame] | 85 | LOG_UNUSED_IOPORT("unused inb: port=0x%04"PRIx32"\n", address); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 86 | return 0xff; |
| 87 | } |
| 88 | |
| 89 | static void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data) |
| 90 | { |
Isaku Yamahata | fc7083b | 2009-07-14 19:10:42 +0900 | [diff] [blame] | 91 | LOG_UNUSED_IOPORT("unused outb: port=0x%04"PRIx32" data=0x%02"PRIx32"\n", |
| 92 | address, data); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | /* default is to make two byte accesses */ |
| 96 | static uint32_t default_ioport_readw(void *opaque, uint32_t address) |
| 97 | { |
| 98 | uint32_t data; |
| 99 | data = ioport_read(0, address); |
Isaku Yamahata | d56dd6c | 2009-07-02 19:32:07 +0900 | [diff] [blame] | 100 | address = (address + 1) & IOPORTS_MASK; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 101 | data |= ioport_read(0, address) << 8; |
| 102 | return data; |
| 103 | } |
| 104 | |
| 105 | static void default_ioport_writew(void *opaque, uint32_t address, uint32_t data) |
| 106 | { |
| 107 | ioport_write(0, address, data & 0xff); |
Isaku Yamahata | d56dd6c | 2009-07-02 19:32:07 +0900 | [diff] [blame] | 108 | address = (address + 1) & IOPORTS_MASK; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 109 | ioport_write(0, address, (data >> 8) & 0xff); |
| 110 | } |
| 111 | |
| 112 | static uint32_t default_ioport_readl(void *opaque, uint32_t address) |
| 113 | { |
Isaku Yamahata | fc7083b | 2009-07-14 19:10:42 +0900 | [diff] [blame] | 114 | LOG_UNUSED_IOPORT("unused inl: port=0x%04"PRIx32"\n", address); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 115 | return 0xffffffff; |
| 116 | } |
| 117 | |
| 118 | static void default_ioport_writel(void *opaque, uint32_t address, uint32_t data) |
| 119 | { |
Isaku Yamahata | fc7083b | 2009-07-14 19:10:42 +0900 | [diff] [blame] | 120 | LOG_UNUSED_IOPORT("unused outl: port=0x%04"PRIx32" data=0x%02"PRIx32"\n", |
| 121 | address, data); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 122 | } |
| 123 | |
Isaku Yamahata | 23e0aff | 2009-07-02 19:32:08 +0900 | [diff] [blame] | 124 | static int ioport_bsize(int size, int *bsize) |
| 125 | { |
| 126 | if (size == 1) { |
| 127 | *bsize = 0; |
| 128 | } else if (size == 2) { |
| 129 | *bsize = 1; |
| 130 | } else if (size == 4) { |
| 131 | *bsize = 2; |
| 132 | } else { |
| 133 | return -1; |
| 134 | } |
| 135 | return 0; |
| 136 | } |
| 137 | |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 138 | /* size is the word size in byte */ |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 139 | int register_ioport_read(pio_addr_t start, int length, int size, |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 140 | IOPortReadFunc *func, void *opaque) |
| 141 | { |
| 142 | int i, bsize; |
| 143 | |
Isaku Yamahata | 23e0aff | 2009-07-02 19:32:08 +0900 | [diff] [blame] | 144 | if (ioport_bsize(size, &bsize)) { |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 145 | hw_error("register_ioport_read: invalid size"); |
| 146 | return -1; |
| 147 | } |
| 148 | for(i = start; i < start + length; i += size) { |
| 149 | ioport_read_table[bsize][i] = func; |
| 150 | if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) |
| 151 | hw_error("register_ioport_read: invalid opaque"); |
| 152 | ioport_opaque[i] = opaque; |
| 153 | } |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | /* size is the word size in byte */ |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 158 | int register_ioport_write(pio_addr_t start, int length, int size, |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 159 | IOPortWriteFunc *func, void *opaque) |
| 160 | { |
| 161 | int i, bsize; |
| 162 | |
Isaku Yamahata | 23e0aff | 2009-07-02 19:32:08 +0900 | [diff] [blame] | 163 | if (ioport_bsize(size, &bsize)) { |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 164 | hw_error("register_ioport_write: invalid size"); |
| 165 | return -1; |
| 166 | } |
| 167 | for(i = start; i < start + length; i += size) { |
| 168 | ioport_write_table[bsize][i] = func; |
| 169 | if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) |
| 170 | hw_error("register_ioport_write: invalid opaque"); |
| 171 | ioport_opaque[i] = opaque; |
| 172 | } |
| 173 | return 0; |
| 174 | } |
| 175 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 176 | void isa_unassign_ioport(pio_addr_t start, int length) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 177 | { |
| 178 | int i; |
| 179 | |
| 180 | for(i = start; i < start + length; i++) { |
| 181 | ioport_read_table[0][i] = default_ioport_readb; |
| 182 | ioport_read_table[1][i] = default_ioport_readw; |
| 183 | ioport_read_table[2][i] = default_ioport_readl; |
| 184 | |
| 185 | ioport_write_table[0][i] = default_ioport_writeb; |
| 186 | ioport_write_table[1][i] = default_ioport_writew; |
| 187 | ioport_write_table[2][i] = default_ioport_writel; |
| 188 | |
| 189 | ioport_opaque[i] = NULL; |
| 190 | } |
| 191 | } |
| 192 | |
| 193 | /***********************************************************/ |
| 194 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 195 | void cpu_outb(pio_addr_t addr, uint8_t val) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 196 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 197 | LOG_IOPORT("outb: %04"FMT_pioaddr" %02"PRIx8"\n", addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 198 | ioport_write(0, addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 199 | } |
| 200 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 201 | void cpu_outw(pio_addr_t addr, uint16_t val) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 202 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 203 | LOG_IOPORT("outw: %04"FMT_pioaddr" %04"PRIx16"\n", addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 204 | ioport_write(1, addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 205 | } |
| 206 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 207 | void cpu_outl(pio_addr_t addr, uint32_t val) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 208 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 209 | LOG_IOPORT("outl: %04"FMT_pioaddr" %08"PRIx32"\n", addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 210 | ioport_write(2, addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 211 | } |
| 212 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 213 | uint8_t cpu_inb(pio_addr_t addr) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 214 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 215 | uint8_t val; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 216 | val = ioport_read(0, addr); |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 217 | LOG_IOPORT("inb : %04"FMT_pioaddr" %02"PRIx8"\n", addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 218 | return val; |
| 219 | } |
| 220 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 221 | uint16_t cpu_inw(pio_addr_t addr) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 222 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 223 | uint16_t val; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 224 | val = ioport_read(1, addr); |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 225 | LOG_IOPORT("inw : %04"FMT_pioaddr" %04"PRIx16"\n", addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 226 | return val; |
| 227 | } |
| 228 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 229 | uint32_t cpu_inl(pio_addr_t addr) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 230 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 231 | uint32_t val; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 232 | val = ioport_read(2, addr); |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 233 | LOG_IOPORT("inl : %04"FMT_pioaddr" %08"PRIx32"\n", addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 234 | return val; |
| 235 | } |