2 * PowerMac descriptor-based DMA emulation
4 * Copyright (c) 2005-2007 Fabrice Bellard
5 * Copyright (c) 2007 Jocelyn Mayer
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
32 #define DBDMA_DPRINTF(fmt, args...) \
33 do { printf("DBDMA: " fmt , ##args); } while (0)
35 #define DBDMA_DPRINTF(fmt, args...)
38 /* DBDMA: currently no op - should suffice right now */
40 static void dbdma_writeb (void *opaque
,
41 target_phys_addr_t addr
, uint32_t value
)
43 DBDMA_DPRINTF("writeb 0x" TARGET_FMT_plx
" <= 0x%08x\n", addr
, value
);
46 static void dbdma_writew (void *opaque
,
47 target_phys_addr_t addr
, uint32_t value
)
49 DBDMA_DPRINTF("writew 0x" TARGET_FMT_plx
" <= 0x%08x\n", addr
, value
);
52 static void dbdma_writel (void *opaque
,
53 target_phys_addr_t addr
, uint32_t value
)
55 DBDMA_DPRINTF("writel 0x" TARGET_FMT_plx
" <= 0x%08x\n", addr
, value
);
58 static uint32_t dbdma_readb (void *opaque
, target_phys_addr_t addr
)
60 DBDMA_DPRINTF("readb 0x" TARGET_FMT_plx
" => 0\n", addr
);
65 static uint32_t dbdma_readw (void *opaque
, target_phys_addr_t addr
)
67 DBDMA_DPRINTF("readw 0x" TARGET_FMT_plx
" => 0\n", addr
);
72 static uint32_t dbdma_readl (void *opaque
, target_phys_addr_t addr
)
74 DBDMA_DPRINTF("readl 0x" TARGET_FMT_plx
" => 0\n", addr
);
79 static CPUWriteMemoryFunc
*dbdma_write
[] = {
85 static CPUReadMemoryFunc
*dbdma_read
[] = {
91 static void dbdma_save(QEMUFile
*f
, void *opaque
)
95 static int dbdma_load(QEMUFile
*f
, void *opaque
, int version_id
)
103 static void dbdma_reset(void *opaque
)
107 void dbdma_init (int *dbdma_mem_index
)
109 *dbdma_mem_index
= cpu_register_io_memory(0, dbdma_read
, dbdma_write
, NULL
);
110 register_savevm("dbdma", -1, 1, dbdma_save
, dbdma_load
, NULL
);
111 qemu_register_reset(dbdma_reset
, NULL
);