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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 | /* exynos_drm_encoder.c * * Copyright (c) 2011 Samsung Electronics Co., Ltd. * Authors: * Inki Dae <inki.dae@samsung.com> * Joonyoung Shim <jy0922.shim@samsung.com> * Seung-Woo Kim <sw0312.kim@samsung.com> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ #include <drm/drmP.h> #include <drm/drm_crtc_helper.h> #include "exynos_drm_drv.h" #include "exynos_drm_encoder.h" #define to_exynos_encoder(x) container_of(x, struct exynos_drm_encoder,\ drm_encoder) /* * exynos specific encoder structure. * * @drm_encoder: encoder object. * @display: the display structure that maps to this encoder */ struct exynos_drm_encoder { struct drm_encoder drm_encoder; struct exynos_drm_display *display; }; static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode) { struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); struct exynos_drm_display *display = exynos_encoder->display; DRM_DEBUG_KMS("encoder dpms: %d\n", mode); if (display->ops->dpms) display->ops->dpms(display, mode); } static bool exynos_drm_encoder_mode_fixup(struct drm_encoder *encoder, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { struct drm_device *dev = encoder->dev; struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); struct exynos_drm_display *display = exynos_encoder->display; struct drm_connector *connector; list_for_each_entry(connector, &dev->mode_config.connector_list, head) { if (connector->encoder != encoder) continue; if (display->ops->mode_fixup) display->ops->mode_fixup(display, connector, mode, adjusted_mode); } return true; } static void exynos_drm_encoder_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); struct exynos_drm_display *display = exynos_encoder->display; if (display->ops->mode_set) display->ops->mode_set(display, adjusted_mode); } static void exynos_drm_encoder_prepare(struct drm_encoder *encoder) { /* drm framework doesn't check NULL. */ } static void exynos_drm_encoder_commit(struct drm_encoder *encoder) { struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); struct exynos_drm_display *display = exynos_encoder->display; if (display->ops->dpms) display->ops->dpms(display, DRM_MODE_DPMS_ON); if (display->ops->commit) display->ops->commit(display); } static void exynos_drm_encoder_disable(struct drm_encoder *encoder) { struct drm_plane *plane; struct drm_device *dev = encoder->dev; exynos_drm_encoder_dpms(encoder, DRM_MODE_DPMS_OFF); /* all planes connected to this encoder should be also disabled. */ drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) { if (plane->crtc && (plane->crtc == encoder->crtc)) plane->funcs->disable_plane(plane); } } static struct drm_encoder_helper_funcs exynos_encoder_helper_funcs = { .dpms = exynos_drm_encoder_dpms, .mode_fixup = exynos_drm_encoder_mode_fixup, .mode_set = exynos_drm_encoder_mode_set, .prepare = exynos_drm_encoder_prepare, .commit = exynos_drm_encoder_commit, .disable = exynos_drm_encoder_disable, }; static void exynos_drm_encoder_destroy(struct drm_encoder *encoder) { struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); drm_encoder_cleanup(encoder); kfree(exynos_encoder); } static struct drm_encoder_funcs exynos_encoder_funcs = { .destroy = exynos_drm_encoder_destroy, }; static unsigned int exynos_drm_encoder_clones(struct drm_encoder *encoder) { struct drm_encoder *clone; struct drm_device *dev = encoder->dev; struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); struct exynos_drm_display *display = exynos_encoder->display; unsigned int clone_mask = 0; int cnt = 0; list_for_each_entry(clone, &dev->mode_config.encoder_list, head) { switch (display->type) { case EXYNOS_DISPLAY_TYPE_LCD: case EXYNOS_DISPLAY_TYPE_HDMI: case EXYNOS_DISPLAY_TYPE_VIDI: clone_mask |= (1 << (cnt++)); break; default: continue; } } return clone_mask; } void exynos_drm_encoder_setup(struct drm_device *dev) { struct drm_encoder *encoder; list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) encoder->possible_clones = exynos_drm_encoder_clones(encoder); } struct drm_encoder * exynos_drm_encoder_create(struct drm_device *dev, struct exynos_drm_display *display, unsigned long possible_crtcs) { struct drm_encoder *encoder; struct exynos_drm_encoder *exynos_encoder; if (!possible_crtcs) return NULL; exynos_encoder = kzalloc(sizeof(*exynos_encoder), GFP_KERNEL); if (!exynos_encoder) return NULL; exynos_encoder->display = display; encoder = &exynos_encoder->drm_encoder; encoder->possible_crtcs = possible_crtcs; DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs); drm_encoder_init(dev, encoder, &exynos_encoder_funcs, DRM_MODE_ENCODER_TMDS); drm_encoder_helper_add(encoder, &exynos_encoder_helper_funcs); DRM_DEBUG_KMS("encoder has been created\n"); return encoder; } struct exynos_drm_display *exynos_drm_get_display(struct drm_encoder *encoder) { return to_exynos_encoder(encoder)->display; } |