6 * Copyright (c) 2006 Nathan Keynes.
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.
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.
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
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
31 * @param direction 0 = host to device, 1 = device to host
33 void dmac_prepare_channel( int channel, uint32_t source, uint32_t dest,
34 uint32_t length, int direction );
37 * Transfer data to the PVR via DMA. Target address should be
38 * 0x10000000 for the TA, and 0x11000000 + VRAM address for VRAM.
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.
45 * @return 0 on success, non-zero on failure.
47 int pvr_dma_write( unsigned int target, char *buf, int length, int region );
50 * Transfer TA data to the PVR via SORT-DMA.
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)
58 * @param region Target region for VRAM writes, 0 for 64-byte region, 1 for 32-byte region.
60 * @return 0 on success, non-zero on failure.
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 );
.