1 /* 2 * Copyright (C) 2012 Avionic Design GmbH 3 * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 */ 9 10 #ifndef HOST1X_DRM_H 11 #define HOST1X_DRM_H 1 12 13 #include <uapi/drm/tegra_drm.h> 14 #include <linux/host1x.h> 15 #include <linux/iova.h> 16 #include <linux/of_gpio.h> 17 18 #include <drm/drmP.h> 19 #include <drm/drm_atomic.h> 20 #include <drm/drm_crtc_helper.h> 21 #include <drm/drm_edid.h> 22 #include <drm/drm_encoder.h> 23 #include <drm/drm_fb_helper.h> 24 #include <drm/drm_fixed.h> 25 26 #include "gem.h" 27 #include "hub.h" 28 #include "trace.h" 29 30 struct reset_control; 31 32 struct tegra_fb { 33 struct drm_framebuffer base; 34 struct tegra_bo **planes; 35 unsigned int num_planes; 36 }; 37 38 #ifdef CONFIG_DRM_FBDEV_EMULATION 39 struct tegra_fbdev { 40 struct drm_fb_helper base; 41 struct tegra_fb *fb; 42 }; 43 #endif 44 45 struct tegra_atomic_state { 46 struct drm_atomic_state base; 47 48 struct clk *clk_disp; 49 struct tegra_dc *dc; 50 unsigned long rate; 51 }; 52 53 static inline struct tegra_atomic_state * 54 to_tegra_atomic_state(struct drm_atomic_state *state) 55 { 56 return container_of(state, struct tegra_atomic_state, base); 57 } 58 59 struct tegra_drm { 60 struct drm_device *drm; 61 62 struct iommu_domain *domain; 63 struct iommu_group *group; 64 struct mutex mm_lock; 65 struct drm_mm mm; 66 67 struct { 68 struct iova_domain domain; 69 unsigned long shift; 70 unsigned long limit; 71 } carveout; 72 73 struct mutex clients_lock; 74 struct list_head clients; 75 76 #ifdef CONFIG_DRM_FBDEV_EMULATION 77 struct tegra_fbdev *fbdev; 78 #endif 79 80 unsigned int pitch_align; 81 82 struct tegra_display_hub *hub; 83 84 struct drm_atomic_state *state; 85 }; 86 87 struct tegra_drm_client; 88 89 struct tegra_drm_context { 90 struct tegra_drm_client *client; 91 struct host1x_channel *channel; 92 unsigned int id; 93 }; 94 95 struct tegra_drm_client_ops { 96 int (*open_channel)(struct tegra_drm_client *client, 97 struct tegra_drm_context *context); 98 void (*close_channel)(struct tegra_drm_context *context); 99 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 100 int (*is_valid_class)(u32 class); 101 int (*submit)(struct tegra_drm_context *context, 102 struct drm_tegra_submit *args, struct drm_device *drm, 103 struct drm_file *file); 104 }; 105 106 int tegra_drm_submit(struct tegra_drm_context *context, 107 struct drm_tegra_submit *args, struct drm_device *drm, 108 struct drm_file *file); 109 110 struct tegra_drm_client { 111 struct host1x_client base; 112 struct list_head list; 113 114 const struct tegra_drm_client_ops *ops; 115 }; 116 117 static inline struct tegra_drm_client * 118 host1x_to_drm_client(struct host1x_client *client) 119 { 120 return container_of(client, struct tegra_drm_client, base); 121 } 122 123 int tegra_drm_register_client(struct tegra_drm *tegra, 124 struct tegra_drm_client *client); 125 int tegra_drm_unregister_client(struct tegra_drm *tegra, 126 struct tegra_drm_client *client); 127 128 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 129 int tegra_drm_exit(struct tegra_drm *tegra); 130 131 void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova); 132 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt, 133 dma_addr_t iova); 134 135 struct cec_notifier; 136 137 struct tegra_output { 138 struct device_node *of_node; 139 struct device *dev; 140 141 struct drm_panel *panel; 142 struct i2c_adapter *ddc; 143 const struct edid *edid; 144 struct cec_notifier *notifier; 145 unsigned int hpd_irq; 146 int hpd_gpio; 147 enum of_gpio_flags hpd_gpio_flags; 148 149 struct drm_encoder encoder; 150 struct drm_connector connector; 151 }; 152 153 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 154 { 155 return container_of(e, struct tegra_output, encoder); 156 } 157 158 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 159 { 160 return container_of(c, struct tegra_output, connector); 161 } 162 163 /* from output.c */ 164 int tegra_output_probe(struct tegra_output *output); 165 void tegra_output_remove(struct tegra_output *output); 166 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 167 void tegra_output_exit(struct tegra_output *output); 168 void tegra_output_find_possible_crtcs(struct tegra_output *output, 169 struct drm_device *drm); 170 171 int tegra_output_connector_get_modes(struct drm_connector *connector); 172 enum drm_connector_status 173 tegra_output_connector_detect(struct drm_connector *connector, bool force); 174 void tegra_output_connector_destroy(struct drm_connector *connector); 175 176 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 177 178 /* from dpaux.c */ 179 struct drm_dp_link; 180 181 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 182 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 183 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 184 int drm_dp_aux_detach(struct drm_dp_aux *aux); 185 int drm_dp_aux_enable(struct drm_dp_aux *aux); 186 int drm_dp_aux_disable(struct drm_dp_aux *aux); 187 int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding); 188 int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link, 189 u8 pattern); 190 191 /* from fb.c */ 192 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 193 unsigned int index); 194 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 195 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 196 struct tegra_bo_tiling *tiling); 197 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 198 struct drm_file *file, 199 const struct drm_mode_fb_cmd2 *cmd); 200 int tegra_drm_fb_prepare(struct drm_device *drm); 201 void tegra_drm_fb_free(struct drm_device *drm); 202 int tegra_drm_fb_init(struct drm_device *drm); 203 void tegra_drm_fb_exit(struct drm_device *drm); 204 void tegra_drm_fb_suspend(struct drm_device *drm); 205 void tegra_drm_fb_resume(struct drm_device *drm); 206 207 extern struct platform_driver tegra_display_hub_driver; 208 extern struct platform_driver tegra_dc_driver; 209 extern struct platform_driver tegra_hdmi_driver; 210 extern struct platform_driver tegra_dsi_driver; 211 extern struct platform_driver tegra_dpaux_driver; 212 extern struct platform_driver tegra_sor_driver; 213 extern struct platform_driver tegra_gr2d_driver; 214 extern struct platform_driver tegra_gr3d_driver; 215 extern struct platform_driver tegra_vic_driver; 216 217 #endif /* HOST1X_DRM_H */ 218