2 * Memory mapped access to ISA IO space.
4 * Copyright (c) 2006 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
28 static void isa_mmio_writeb (void *opaque, a_target_phys_addr addr,
31 cpu_outb(addr & IOPORTS_MASK, val);
34 static void isa_mmio_writew (void *opaque, a_target_phys_addr addr,
37 #ifdef TARGET_WORDS_BIGENDIAN
40 cpu_outw(addr & IOPORTS_MASK, val);
43 static void isa_mmio_writel (void *opaque, a_target_phys_addr addr,
46 #ifdef TARGET_WORDS_BIGENDIAN
49 cpu_outl(addr & IOPORTS_MASK, val);
52 static uint32_t isa_mmio_readb (void *opaque, a_target_phys_addr addr)
56 val = cpu_inb(addr & IOPORTS_MASK);
60 static uint32_t isa_mmio_readw (void *opaque, a_target_phys_addr addr)
64 val = cpu_inw(addr & IOPORTS_MASK);
65 #ifdef TARGET_WORDS_BIGENDIAN
71 static uint32_t isa_mmio_readl (void *opaque, a_target_phys_addr addr)
75 val = cpu_inl(addr & IOPORTS_MASK);
76 #ifdef TARGET_WORDS_BIGENDIAN
82 static CPUWriteMemoryFunc * const isa_mmio_write[] = {
88 static CPUReadMemoryFunc * const isa_mmio_read[] = {
94 static int isa_mmio_iomemtype = 0;
96 void isa_mmio_init(a_target_phys_addr base, a_target_phys_addr size)
98 if (!isa_mmio_iomemtype) {
99 isa_mmio_iomemtype = cpu_register_io_memory(isa_mmio_read,
100 isa_mmio_write, NULL);
102 cpu_register_physical_memory(base, size, isa_mmio_iomemtype);