projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 3cbee15b JM |
1 | /* |
| 2 | * PowerMac descriptor-based DMA emulation | |
| 3 | * | |
| 4 | * Copyright (c) 2005-2007 Fabrice Bellard | |
| 5 | * Copyright (c) 2007 Jocelyn Mayer | |
| 6 | * | |
| 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: | |
| 13 | * | |
| 14 | * The above copyright notice and this permission notice shall be included in | |
| 15 | * all copies or substantial portions of the Software. | |
| 16 | * | |
| 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 | |
| 23 | * THE SOFTWARE. | |
| 24 | */ | |
| 87ecb68b | 25 | #include "hw.h" |
| 3cbee15b JM |
26 | #include "ppc_mac.h" |
| 27 | ||
| 28 | /* DBDMA: currently no op - should suffice right now */ | |
| 29 | ||
| 30 | static void dbdma_writeb (void *opaque, | |
| 31 | target_phys_addr_t addr, uint32_t value) | |
| 32 | { | |
| 33 | printf("%s: 0x" PADDRX " <= 0x%08x\n", __func__, addr, value); | |
| 34 | } | |
| 35 | ||
| 36 | static void dbdma_writew (void *opaque, | |
| 37 | target_phys_addr_t addr, uint32_t value) | |
| 38 | { | |
| 39 | } | |
| 40 | ||
| 41 | static void dbdma_writel (void *opaque, | |
| 42 | target_phys_addr_t addr, uint32_t value) | |
| 43 | { | |
| 44 | } | |
| 45 | ||
| 46 | static uint32_t dbdma_readb (void *opaque, target_phys_addr_t addr) | |
| 47 | { | |
| 48 | printf("%s: 0x" PADDRX " => 0x00000000\n", __func__, addr); | |
| 49 | ||
| 50 | return 0; | |
| 51 | } | |
| 52 | ||
| 53 | static uint32_t dbdma_readw (void *opaque, target_phys_addr_t addr) | |
| 54 | { | |
| 55 | return 0; | |
| 56 | } | |
| 57 | ||
| 58 | static uint32_t dbdma_readl (void *opaque, target_phys_addr_t addr) | |
| 59 | { | |
| 60 | return 0; | |
| 61 | } | |
| 62 | ||
| 63 | static CPUWriteMemoryFunc *dbdma_write[] = { | |
| 64 | &dbdma_writeb, | |
| 65 | &dbdma_writew, | |
| 66 | &dbdma_writel, | |
| 67 | }; | |
| 68 | ||
| 69 | static CPUReadMemoryFunc *dbdma_read[] = { | |
| 70 | &dbdma_readb, | |
| 71 | &dbdma_readw, | |
| 72 | &dbdma_readl, | |
| 73 | }; | |
| 74 | ||
| 75 | void dbdma_init (int *dbdma_mem_index) | |
| 76 | { | |
| 77 | *dbdma_mem_index = cpu_register_io_memory(0, dbdma_read, dbdma_write, NULL); | |
| 78 | } | |
| 79 |