| Stephen Warren | 7605eb5 | 2011-01-07 22:36:13 -0700 | [diff] [blame] | 1 | /* |
| 2 | * tegra_pcm.h - Definitions for Tegra PCM driver |
| 3 | * |
| 4 | * Author: Stephen Warren <swarren@nvidia.com> |
| 5 | * Copyright (C) 2010 - NVIDIA, Inc. |
| 6 | * |
| 7 | * Based on code copyright/by: |
| 8 | * |
| 9 | * Copyright (c) 2009-2010, NVIDIA Corporation. |
| 10 | * Scott Peterson <speterson@nvidia.com> |
| 11 | * |
| 12 | * Copyright (C) 2010 Google, Inc. |
| 13 | * Iliyan Malchev <malchev@google.com> |
| 14 | * |
| 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. |
| 18 | * |
| 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. |
| 23 | * |
| 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 |
| 27 | * 02110-1301 USA |
| 28 | * |
| 29 | */ |
| 30 | |
| 31 | #ifndef __TEGRA_PCM_H__ |
| 32 | #define __TEGRA_PCM_H__ |
| 33 | |
| 34 | #include <mach/dma.h> |
| 35 | |
| 36 | struct tegra_pcm_dma_params { |
| 37 | unsigned long addr; |
| 38 | unsigned long wrap; |
| 39 | unsigned long width; |
| 40 | unsigned long req_sel; |
| 41 | }; |
| 42 | |
| 43 | struct tegra_runtime_data { |
| 44 | struct snd_pcm_substream *substream; |
| 45 | spinlock_t lock; |
| 46 | int running; |
| 47 | int dma_pos; |
| 48 | int dma_pos_end; |
| 49 | int period_index; |
| 50 | int dma_req_idx; |
| 51 | struct tegra_dma_req dma_req[2]; |
| 52 | struct tegra_dma_channel *dma_chan; |
| 53 | }; |
| 54 | |
| 55 | #endif |