7605eb5bc3
This provides an ASoC platform driver that manages Tegra's APB DMA controller. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/*
|
|
* 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
|