| Shawn Guo | 4762fba | 2012-03-05 22:30:55 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de> |
| 3 | * |
| 4 | * This code is based on code copyrighted by Freescale, |
| 5 | * Liam Girdwood, Javier Martin and probably others. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License as published by the |
| 9 | * Free Software Foundation; either version 2 of the License, or (at your |
| 10 | * option) any later version. |
| 11 | */ |
| 12 | |
| 13 | #ifndef _IMX_PCM_H |
| 14 | #define _IMX_PCM_H |
| 15 | |
| Lars-Peter Clausen | 312bb4f | 2013-03-22 14:12:12 +0100 | [diff] [blame] | 16 | #include <linux/platform_data/dma-imx.h> |
| 17 | |
| Shawn Guo | 4762fba | 2012-03-05 22:30:55 +0800 | [diff] [blame] | 18 | /* |
| 19 | * Do not change this as the FIQ handler depends on this size |
| 20 | */ |
| 21 | #define IMX_SSI_DMABUF_SIZE (64 * 1024) |
| 22 | |
| Lars-Peter Clausen | 312bb4f | 2013-03-22 14:12:12 +0100 | [diff] [blame] | 23 | static inline void |
| Lars-Peter Clausen | a8909c9 | 2013-04-03 11:06:04 +0200 | [diff] [blame] | 24 | imx_pcm_dma_params_init_data(struct imx_dma_data *dma_data, |
| Lars-Peter Clausen | 312bb4f | 2013-03-22 14:12:12 +0100 | [diff] [blame] | 25 | int dma, bool shared) |
| 26 | { |
| Lars-Peter Clausen | a8909c9 | 2013-04-03 11:06:04 +0200 | [diff] [blame] | 27 | dma_data->dma_request = dma; |
| 28 | dma_data->priority = DMA_PRIO_HIGH; |
| Lars-Peter Clausen | 312bb4f | 2013-03-22 14:12:12 +0100 | [diff] [blame] | 29 | if (shared) |
| Lars-Peter Clausen | a8909c9 | 2013-04-03 11:06:04 +0200 | [diff] [blame] | 30 | dma_data->peripheral_type = IMX_DMATYPE_SSI_SP; |
| Lars-Peter Clausen | 312bb4f | 2013-03-22 14:12:12 +0100 | [diff] [blame] | 31 | else |
| Lars-Peter Clausen | a8909c9 | 2013-04-03 11:06:04 +0200 | [diff] [blame] | 32 | dma_data->peripheral_type = IMX_DMATYPE_SSI; |
| Lars-Peter Clausen | 312bb4f | 2013-03-22 14:12:12 +0100 | [diff] [blame] | 33 | } |
| 34 | |
| Shawn Guo | 1927661 | 2013-01-28 14:25:43 +0800 | [diff] [blame] | 35 | #ifdef CONFIG_SND_SOC_IMX_PCM_DMA |
| 36 | int imx_pcm_dma_init(struct platform_device *pdev); |
| Lars-Peter Clausen | adaa322 | 2013-04-15 19:19:59 +0200 | [diff] [blame] | 37 | void imx_pcm_dma_exit(struct platform_device *pdev); |
| Shawn Guo | 1927661 | 2013-01-28 14:25:43 +0800 | [diff] [blame] | 38 | #else |
| 39 | static inline int imx_pcm_dma_init(struct platform_device *pdev) |
| 40 | { |
| 41 | return -ENODEV; |
| 42 | } |
| Lars-Peter Clausen | adaa322 | 2013-04-15 19:19:59 +0200 | [diff] [blame] | 43 | |
| 44 | static inline void imx_pcm_dma_exit(struct platform_device *pdev) |
| 45 | { |
| 46 | } |
| Shawn Guo | 1927661 | 2013-01-28 14:25:43 +0800 | [diff] [blame] | 47 | #endif |
| 48 | |
| 49 | #ifdef CONFIG_SND_SOC_IMX_PCM_FIQ |
| 50 | int imx_pcm_fiq_init(struct platform_device *pdev); |
| Shawn Guo | 88e89f5 | 2013-04-25 11:18:48 +0800 | [diff] [blame] | 51 | void imx_pcm_fiq_exit(struct platform_device *pdev); |
| Shawn Guo | 1927661 | 2013-01-28 14:25:43 +0800 | [diff] [blame] | 52 | #else |
| 53 | static inline int imx_pcm_fiq_init(struct platform_device *pdev) |
| 54 | { |
| 55 | return -ENODEV; |
| 56 | } |
| Shawn Guo | 88e89f5 | 2013-04-25 11:18:48 +0800 | [diff] [blame] | 57 | |
| 58 | static inline void imx_pcm_fiq_exit(struct platform_device *pdev) |
| 59 | { |
| 60 | } |
| Shawn Guo | 1927661 | 2013-01-28 14:25:43 +0800 | [diff] [blame] | 61 | #endif |
| 62 | |
| Shawn Guo | 4762fba | 2012-03-05 22:30:55 +0800 | [diff] [blame] | 63 | #endif /* _IMX_PCM_H */ |