tegra_pcm.h
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/*
* tegra_pcm.h - Definitions for Tegra PCM driver
*
* Author: Stephen Warren <swarren@nvidia.com>
* Copyright (C) 2010 - NVIDIA, Inc.
*
* Based on code copyright/by:
*
* Copyright (c) 2009-2010, NVIDIA Corporation.
* Scott Peterson <speterson@nvidia.com>
*
* Copyright (C) 2010 Google, Inc.
* Iliyan Malchev <malchev@google.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#ifndef __TEGRA_PCM_H__
#define __TEGRA_PCM_H__
#include <mach/dma.h>
struct tegra_pcm_dma_params {
unsigned long addr;
unsigned long wrap;
unsigned long width;
unsigned long req_sel;
};
struct tegra_runtime_data {
struct snd_pcm_substream *substream;
spinlock_t lock;
int running;
int dma_pos;
int dma_pos_end;
int period_index;
int dma_req_idx;
struct tegra_dma_req dma_req[2];
struct tegra_dma_channel *dma_chan;
};
#endif