lxdream 0.9.1| filename | test/dma.h |
| changeset | 812:8cc61d5ea1f8 |
| prev | 561:533f6b478071 |
| author | nkeynes |
| date | Thu Dec 23 17:50:10 2010 +1000 (13 years ago) |
| permissions | -rw-r--r-- |
| last change | Clone iso_memory_stream_new() as iso_mem_stream_new(), since current versions of libisofs have made it unlinkable on linux |
| view | annotate | diff | log | raw |
1 /**
2 * $Id$
3 *
4 * DMA support code
5 *
6 * Copyright (c) 2006 Nathan Keynes.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
19 #include "lib.h"
21 /**
22 * Setup the DMAC for a transfer. Assumes 32-byte block transfer.
23 * Caller is responsible for making sure no-one else is using the
24 * channel already.
25 *
26 * @param channel DMA channel to use, 0 to 3
27 * @param source source address (if a memory source)
28 * @param dest destination address (if a memory destination)
29 * @param length number of bytes to transfer (must be a multiple of
30 * 32.
31 * @param direction 0 = host to device, 1 = device to host
32 */
33 void dmac_prepare_channel( int channel, uint32_t source, uint32_t dest,
34 uint32_t length, int direction );
36 /**
37 * Transfer data to the PVR via DMA. Target address should be
38 * 0x10000000 for the TA, and 0x11000000 + VRAM address for VRAM.
39 *
40 * @param target Target address
41 * @param buf Data to write (must be 32-byte aligned)
42 * @param length Size of data to write, in bytes.
43 * @param region Target region for VRAM writes, 0 for 64-byte region, 1 for 32-byte region.
44 *
45 * @return 0 on success, non-zero on failure.
46 */
47 int pvr_dma_write( unsigned int target, char *buf, int length, int region );
49 /**
50 * Transfer TA data to the PVR via SORT-DMA.
51 *
52 * @param sorttable Start address of the sort table
53 * @param tablelen Size of the sort table (in bytes)
54 * @param data Start address of the TA data (polygons)
55 * @param datalen Size of the polygon data block (in bytes)
56 * @param bitwidth
57 * @param datasize
58 * @param region Target region for VRAM writes, 0 for 64-byte region, 1 for 32-byte region.
59 *
60 * @return 0 on success, non-zero on failure.
61 */
62 int sort_dma_write( char *sorttable, int tablelen, char *data, int datalen, int bitwidth, int datasize );
64 int aica_dma_write( uint32_t aica_addr, char *data, uint32_t size );
65 int aica_dma_read( char *data, uint32_t aica_addr, uint32_t size );
.