1 /* 2 * Copyright (c) 2010 Intel Corporation 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program; if not, write to the Free Software 15 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 16 */ 17 18 #ifndef PCH_DMA_H 19 #define PCH_DMA_H 20 21 #include <linux/dmaengine.h> 22 23 enum pch_dma_width { 24 PCH_DMA_WIDTH_1_BYTE, 25 PCH_DMA_WIDTH_2_BYTES, 26 PCH_DMA_WIDTH_4_BYTES, 27 }; 28 29 struct pch_dma_slave { 30 struct device *dma_dev; 31 unsigned int chan_id; 32 dma_addr_t tx_reg; 33 dma_addr_t rx_reg; 34 enum pch_dma_width width; 35 }; 36 37 #endif 38