/* * tegra_pcm.h - Definitions for Tegra PCM driver * * Author: Stephen Warren <swarren@nvidia.com> * Copyright (C) 2010,2012 - 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; }; #if defined(CONFIG_TEGRA_SYSTEM_DMA) 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 int tegra_pcm_platform_register(struct device *dev); void tegra_pcm_platform_unregister(struct device *dev); #endif