| /* |
| * 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 |
