| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 1 | /* |
| 2 | * Generic Platform Camera Driver Header |
| 3 | * |
| 4 | * Copyright (C) 2008 Magnus Damm |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #ifndef __SOC_CAMERA_H__ |
| 12 | #define __SOC_CAMERA_H__ |
| 13 | |
| 14 | #include <linux/videodev2.h> |
| 15 | #include <media/soc_camera.h> |
| 16 | #include <media/v4l2-mediabus.h> |
| 17 | |
| 18 | struct device; |
| 19 | |
| 20 | struct soc_camera_platform_info { |
| 21 | const char *format_name; |
| 22 | unsigned long format_depth; |
| 23 | struct v4l2_mbus_framefmt format; |
| 24 | unsigned long mbus_param; |
| 25 | enum v4l2_mbus_type mbus_type; |
| 26 | struct soc_camera_device *icd; |
| 27 | int (*set_capture)(struct soc_camera_platform_info *info, int enable); |
| 28 | }; |
| 29 | |
| 30 | static inline void soc_camera_platform_release(struct platform_device **pdev) |
| 31 | { |
| 32 | *pdev = NULL; |
| 33 | } |
| 34 | |
| 35 | static inline int soc_camera_platform_add(struct soc_camera_device *icd, |
| 36 | struct platform_device **pdev, |
| 37 | struct soc_camera_link *plink, |
| 38 | void (*release)(struct device *dev), |
| 39 | int id) |
| 40 | { |
| 41 | struct soc_camera_subdev_desc *ssdd = |
| 42 | (struct soc_camera_subdev_desc *)plink; |
| 43 | struct soc_camera_platform_info *info = ssdd->drv_priv; |
| 44 | int ret; |
| 45 | |
| 46 | if (&icd->sdesc->subdev_desc != ssdd) |
| 47 | return -ENODEV; |
| 48 | |
| 49 | if (*pdev) |
| 50 | return -EBUSY; |
| 51 | |
| 52 | *pdev = platform_device_alloc("soc_camera_platform", id); |
| 53 | if (!*pdev) |
| 54 | return -ENOMEM; |
| 55 | |
| 56 | info->icd = icd; |
| 57 | |
| 58 | (*pdev)->dev.platform_data = info; |
| 59 | (*pdev)->dev.release = release; |
| 60 | |
| 61 | ret = platform_device_add(*pdev); |
| 62 | if (ret < 0) { |
| 63 | platform_device_put(*pdev); |
| 64 | *pdev = NULL; |
| 65 | info->icd = NULL; |
| 66 | } |
| 67 | |
| 68 | return ret; |
| 69 | } |
| 70 | |
| 71 | static inline void soc_camera_platform_del(const struct soc_camera_device *icd, |
| 72 | struct platform_device *pdev, |
| 73 | const struct soc_camera_link *plink) |
| 74 | { |
| 75 | const struct soc_camera_subdev_desc *ssdd = |
| 76 | (const struct soc_camera_subdev_desc *)plink; |
| 77 | if (&icd->sdesc->subdev_desc != ssdd || !pdev) |
| 78 | return; |
| 79 | |
| 80 | platform_device_unregister(pdev); |
| 81 | } |
| 82 | |
| 83 | #endif /* __SOC_CAMERA_H__ */ |