| Asish Bhattacharya | 8e2277f | 2017-07-20 18:31:55 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014, 2017 The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 and |
| 6 | * only version 2 as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | */ |
| 14 | #ifndef _MSM_SLIMBUS_DMA_H |
| 15 | #define _MSM_SLIMBUS_DMA_H |
| 16 | |
| 17 | #include <linux/slimbus/slimbus.h> |
| 18 | |
| 19 | /* |
| 20 | * struct msm_slim_dma_data - DMA data for slimbus data transfer |
| 21 | * |
| 22 | * @sdev: Handle to the slim_device instance associated with the |
| 23 | * data transfer. |
| 24 | * @ph: Port handle for the slimbus ports. |
| 25 | * @dai_channel_ctl: callback function into the CPU dai driver |
| 26 | * to setup the data path. |
| 27 | * |
| 28 | * This structure is used to share the slimbus port handles and |
| 29 | * other data path setup related handles with other drivers. |
| 30 | */ |
| 31 | struct msm_slim_dma_data { |
| 32 | |
| 33 | /* Handle to slimbus device */ |
| 34 | struct slim_device *sdev; |
| 35 | |
| 36 | /* Port Handle */ |
| 37 | u32 ph; |
| 38 | |
| 39 | /* Callback for data channel control */ |
| 40 | int (*dai_channel_ctl)(struct msm_slim_dma_data *dma_data, |
| 41 | struct snd_soc_dai *dai, bool enable); |
| 42 | }; |
| 43 | |
| 44 | #endif |