1 /* 2 * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. 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 as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License along 15 * with this program; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 17 */ 18 19 #ifndef _MXS_PCM_H 20 #define _MXS_PCM_H 21 22 #include <mach/dma.h> 23 24 struct mxs_pcm_dma_params { 25 int chan_irq; 26 int chan_num; 27 }; 28 29 struct mxs_pcm_runtime_data { 30 int period_bytes; 31 int periods; 32 int dma; 33 unsigned long offset; 34 unsigned long size; 35 void *buf; 36 int period_time; 37 struct dma_async_tx_descriptor *desc; 38 struct dma_chan *dma_chan; 39 struct mxs_dma_data dma_data; 40 struct mxs_pcm_dma_params *dma_params; 41 }; 42 43 #endif 44