2 * tegra_pcm.h - Definitions for Tegra PCM driver
4 * Author: Stephen Warren <swarren@nvidia.com>
5 * Copyright (C) 2010,2012 - NVIDIA, Inc.
7 * Based on code copyright/by:
9 * Copyright (c) 2009-2010, NVIDIA Corporation.
10 * Scott Peterson <speterson@nvidia.com>
12 * Copyright (C) 2010 Google, Inc.
13 * Iliyan Malchev <malchev@google.com>
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * version 2 as published by the Free Software Foundation.
19 * This program is distributed in the hope that it will be useful, but
20 * WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 * General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
31 #ifndef __TEGRA_PCM_H__
32 #define __TEGRA_PCM_H__
36 struct tegra_pcm_dma_params {
40 unsigned long req_sel;
43 #if defined(CONFIG_TEGRA_SYSTEM_DMA)
44 struct tegra_runtime_data {
45 struct snd_pcm_substream *substream;
52 struct tegra_dma_req dma_req[2];
53 struct tegra_dma_channel *dma_chan;
57 int tegra_pcm_platform_register(struct device *dev);
58 void tegra_pcm_platform_unregister(struct device *dev);