Greg Hackmann | ebb26c7 | 2013-11-08 10:30:42 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef _LIBADFHWC_ADFHWC_H_ |
| 18 | #define _LIBADFHWC_ADFHWC_H_ |
| 19 | |
| 20 | #include <stdbool.h> |
| 21 | #include <stdint.h> |
| 22 | #include <sys/cdefs.h> |
| 23 | #include <video/adf.h> |
| 24 | |
| 25 | #include <hardware/hwcomposer.h> |
| 26 | |
| 27 | struct adf_hwc_helper; |
| 28 | |
| 29 | struct adf_hwc_event_callbacks { |
| 30 | /** |
| 31 | * Called on vsync (required) |
| 32 | */ |
| 33 | void (*vsync)(void *data, int disp, uint64_t timestamp); |
| 34 | /** |
| 35 | * Called on hotplug (required) |
| 36 | */ |
| 37 | void (*hotplug)(void *data, int disp, bool connected); |
| 38 | /** |
| 39 | * Called on hardware-custom ADF events (optional) |
| 40 | */ |
| 41 | void (*custom_event)(void *data, int disp, struct adf_event *event); |
| 42 | }; |
| 43 | |
| 44 | /** |
| 45 | * Converts HAL pixel formats to equivalent ADF/DRM format FourCCs. |
| 46 | */ |
| 47 | static inline uint32_t adf_fourcc_for_hal_pixel_format(int format) |
| 48 | { |
| 49 | switch (format) { |
| 50 | case HAL_PIXEL_FORMAT_RGBA_8888: |
| 51 | return DRM_FORMAT_RGBA8888; |
| 52 | case HAL_PIXEL_FORMAT_RGBX_8888: |
| 53 | return DRM_FORMAT_RGBX8888; |
| 54 | case HAL_PIXEL_FORMAT_RGB_888: |
| 55 | return DRM_FORMAT_RGB888; |
| 56 | case HAL_PIXEL_FORMAT_RGB_565: |
| 57 | return DRM_FORMAT_RGB565; |
| 58 | case HAL_PIXEL_FORMAT_BGRA_8888: |
| 59 | return DRM_FORMAT_BGRA8888; |
| 60 | case HAL_PIXEL_FORMAT_YV12: |
| 61 | return DRM_FORMAT_YVU420; |
| 62 | case HAL_PIXEL_FORMAT_YCbCr_422_SP: |
| 63 | return DRM_FORMAT_NV16; |
| 64 | case HAL_PIXEL_FORMAT_YCrCb_420_SP: |
| 65 | return DRM_FORMAT_NV21; |
| 66 | case HAL_PIXEL_FORMAT_YCbCr_422_I: |
| 67 | return DRM_FORMAT_YUYV; |
| 68 | default: |
| 69 | return 0; |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Converts HAL display types to equivalent ADF interface flags. |
| 75 | */ |
| 76 | static inline uint32_t adf_hwc_interface_flag_for_disp(int disp) |
| 77 | { |
| 78 | switch (disp) { |
| 79 | case HWC_DISPLAY_PRIMARY: |
| 80 | return ADF_INTF_FLAG_PRIMARY; |
| 81 | case HWC_DISPLAY_EXTERNAL: |
| 82 | return ADF_INTF_FLAG_EXTERNAL; |
| 83 | default: |
| 84 | return 0; |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | __BEGIN_DECLS |
| 89 | |
| 90 | /** |
| 91 | * Create a HWC helper for the specified ADF interfaces. |
| 92 | * |
| 93 | * intf_fds must be indexed by HWC display type: e.g., |
| 94 | * intf_fds[HWC_DISPLAY_PRIMARY] is the fd for the primary display |
| 95 | * interface. n_intfs must be >= 1. |
| 96 | * |
| 97 | * The caller retains ownership of the fds in intf_fds and must close() |
| 98 | * them when they are no longer needed. |
| 99 | * |
| 100 | * On error, returns -errno. |
| 101 | */ |
| 102 | int adf_hwc_open(int *intf_fds, size_t n_intfs, |
| 103 | const struct adf_hwc_event_callbacks *event_cb, void *event_cb_data, |
| 104 | struct adf_hwc_helper **dev); |
| 105 | |
| 106 | /** |
| 107 | * Destroys a HWC helper. |
| 108 | */ |
| 109 | void adf_hwc_close(struct adf_hwc_helper *dev); |
| 110 | |
| 111 | /** |
| 112 | * Generic implementations of common HWC ops. |
| 113 | * |
| 114 | * The HWC should not point its ops directly at these helpers. Instead, the HWC |
| 115 | * should provide stub ops which call these helpers after converting the |
| 116 | * hwc_composer_device_1* to a struct adf_hwc_helper*. |
| 117 | */ |
| 118 | int adf_eventControl(struct adf_hwc_helper *dev, int disp, int event, |
| 119 | int enabled); |
| 120 | int adf_blank(struct adf_hwc_helper *dev, int disp, int blank); |
| 121 | int adf_query_display_types_supported(struct adf_hwc_helper *dev, int *value); |
| 122 | int adf_getDisplayConfigs(struct adf_hwc_helper *dev, int disp, |
| 123 | uint32_t *configs, size_t *numConfigs); |
| 124 | int adf_getDisplayAttributes(struct adf_hwc_helper *dev, int disp, |
| 125 | uint32_t config, const uint32_t *attributes, int32_t *values); |
| 126 | |
| 127 | __END_DECLS |
| 128 | |
| 129 | #endif /* _LIBADFHWC_ADFHWC_H_ */ |