1 /**************************************************************************
5 * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
7 * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
8 * JinYoung Jeon <jy0.jeon@samsung.com>,
9 * Taeheon Kim <th908.kim@samsung.com>,
10 * YoungJun Cho <yj44.cho@samsung.com>,
11 * SooChan Lim <sc1.lim@samsung.com>,
12 * Boram Park <sc1.lim@samsung.com>
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the
16 * "Software"), to deal in the Software without restriction, including
17 * without limitation the rights to use, copy, modify, merge, publish,
18 * distribute, sub license, and/or sell copies of the Software, and to
19 * permit persons to whom the Software is furnished to do so, subject to
20 * the following conditions:
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
27 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
29 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
30 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
31 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
32 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 **************************************************************************/
41 #include "tdm_backend.h"
42 #include "tdm_private.h"
44 #define BACKEND_FUNC_ENTRY() \
45 tdm_private_display *private_display; \
46 TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER); \
47 private_display = (tdm_private_display*)dpy;
50 _check_abi_version(tdm_backend_module *module, int abimaj, int abimin)
52 int major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
53 int minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
55 if (major < abimaj) goto failed;
56 if (major > abimaj) return 0;
57 if (minor < abimin) goto failed;
60 TDM_ERR("The ABI version(%d.%d) of '%s' is less than %d.%d",
61 major, minor, module->name ? module->name : "unknown",
67 tdm_backend_register_func_display(tdm_display *dpy,
68 tdm_func_display *func_display)
70 tdm_backend_module *module;
72 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
76 TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_INVALID_PARAMETER);
78 /* the ABI version of backend module should be more than 1.1 */
79 module = private_display->module_data;
80 if (_check_abi_version(module, 1, 1) < 0)
81 return TDM_ERROR_BAD_MODULE;
83 private_display->func_display = *func_display;
85 return TDM_ERROR_NONE;
89 tdm_backend_register_func_output(tdm_display *dpy, tdm_func_output *func_output)
91 tdm_backend_module *module;
93 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
97 TDM_RETURN_VAL_IF_FAIL(func_output != NULL, TDM_ERROR_INVALID_PARAMETER);
99 /* the ABI version of backend module should be more than 1.1 */
100 module = private_display->module_data;
101 if (_check_abi_version(module, 1, 1) < 0)
102 return TDM_ERROR_BAD_MODULE;
104 private_display->func_output = *func_output;
106 return TDM_ERROR_NONE;
110 tdm_backend_register_func_layer(tdm_display *dpy, tdm_func_layer *func_layer)
112 tdm_backend_module *module;
114 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
116 BACKEND_FUNC_ENTRY();
118 TDM_RETURN_VAL_IF_FAIL(func_layer != NULL, TDM_ERROR_INVALID_PARAMETER);
120 /* the ABI version of backend module should be more than 1.1 */
121 module = private_display->module_data;
122 if (_check_abi_version(module, 1, 1) < 0)
123 return TDM_ERROR_BAD_MODULE;
125 private_display->func_layer = *func_layer;
127 return TDM_ERROR_NONE;
131 tdm_backend_register_func_hwc_window(tdm_display *dpy, tdm_func_hwc_window *func_hwc_window)
133 tdm_backend_module *module;
135 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
137 BACKEND_FUNC_ENTRY();
139 TDM_RETURN_VAL_IF_FAIL(func_hwc_window != NULL, TDM_ERROR_INVALID_PARAMETER);
141 module = private_display->module_data;
143 Temporarily, we set the version of hwc window to 1.1 for the development.
144 Originally the hwc window version is 2.0. */
145 if (_check_abi_version(module, 1, 1) < 0)
146 return TDM_ERROR_BAD_MODULE;
148 private_display->func_hwc_window = *func_hwc_window;
150 return TDM_ERROR_NONE;
154 tdm_backend_register_func_pp(tdm_display *dpy, tdm_func_pp *func_pp)
156 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
158 BACKEND_FUNC_ENTRY();
161 return TDM_ERROR_NONE;
163 private_display->capabilities |= TDM_DISPLAY_CAPABILITY_PP;
164 private_display->func_pp = *func_pp;
166 return TDM_ERROR_NONE;
170 tdm_backend_register_func_capture(tdm_display *dpy,
171 tdm_func_capture *func_capture)
173 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
175 BACKEND_FUNC_ENTRY();
178 return TDM_ERROR_NONE;
180 private_display->capabilities |= TDM_DISPLAY_CAPABILITY_CAPTURE;
181 private_display->func_capture = *func_capture;
183 return TDM_ERROR_NONE;
186 /* backend operates itself types */
187 static tdm_private_output*
188 _look_for_frontend_hwc_output(tdm_output *backend_output)
190 tdm_private_output *frontend_output = NULL, *o = NULL;
191 tdm_private_display *dpy;
193 dpy = tdm_display_init(NULL);
194 TDM_RETURN_VAL_IF_FAIL(dpy != NULL, NULL);
196 LIST_FOR_EACH_ENTRY(o, &dpy->output_list, link) {
197 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
200 if (o->output_backend == backend_output) {
206 tdm_display_deinit(dpy);
208 return frontend_output;
212 tdm_backend_trigger_need_validate_event(tdm_output *output)
214 tdm_private_output *private_output;
218 private_output = _look_for_frontend_hwc_output(output);
219 TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
223 /* do not lock the global display lock here */
225 res = write(private_output->need_validate.event_fd, &value, sizeof(value));
227 return TDM_ERROR_OPERATION_FAILED;
229 return TDM_ERROR_NONE;