89 строки
2.9 KiB
C
89 строки
2.9 KiB
C
/*
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* Copyright © 2015 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Rafael Antognolli <rafael.antognolli@intel.com>
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*
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*/
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#include <linux/module.h>
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#include <drm/drm_print.h>
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#include "drm_crtc_helper_internal.h"
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MODULE_AUTHOR("David Airlie, Jesse Barnes");
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MODULE_DESCRIPTION("DRM KMS helper");
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MODULE_LICENSE("GPL and additional rights");
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#if IS_ENABLED(CONFIG_DRM_LOAD_EDID_FIRMWARE)
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/* Backward compatibility for drm_kms_helper.edid_firmware */
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static int edid_firmware_set(const char *val, const struct kernel_param *kp)
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{
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DRM_NOTE("drm_kms_helper.edid_firmware is deprecated, please use drm.edid_firmware instead.\n");
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return __drm_set_edid_firmware_path(val);
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}
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static int edid_firmware_get(char *buffer, const struct kernel_param *kp)
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{
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return __drm_get_edid_firmware_path(buffer, PAGE_SIZE);
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}
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static const struct kernel_param_ops edid_firmware_ops = {
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.set = edid_firmware_set,
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.get = edid_firmware_get,
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};
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module_param_cb(edid_firmware, &edid_firmware_ops, NULL, 0644);
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__MODULE_PARM_TYPE(edid_firmware, "charp");
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MODULE_PARM_DESC(edid_firmware,
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"DEPRECATED. Use drm.edid_firmware module parameter instead.");
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#endif
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static int __init drm_kms_helper_init(void)
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{
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/*
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* The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT)
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* but the module doesn't depend on any fb console symbols. At least
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* attempt to load fbcon to avoid leaving the system without a usable
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* console.
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*/
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if (IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) &&
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IS_MODULE(CONFIG_FRAMEBUFFER_CONSOLE) &&
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!IS_ENABLED(CONFIG_EXPERT))
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request_module_nowait("fbcon");
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return drm_dp_aux_dev_init();
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}
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static void __exit drm_kms_helper_exit(void)
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{
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/* Call exit functions from specific kms helpers here */
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drm_dp_aux_dev_exit();
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}
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module_init(drm_kms_helper_init);
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module_exit(drm_kms_helper_exit);
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