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_drm { 46 struct drm_device *drm; 47 48 struct iommu_domain *domain; 49 struct iommu_group *group; 50 struct mutex mm_lock; 51 struct drm_mm mm; 52 53 struct { 54 struct iova_domain domain; 55 unsigned long shift; 56 unsigned long limit; 57 } carveout; 58 59 struct mutex clients_lock; 60 struct list_head clients; 61 62 #ifdef CONFIG_DRM_FBDEV_EMULATION 63 struct tegra_fbdev *fbdev; 64 #endif 65 66 unsigned int pitch_align; 67 68 struct tegra_display_hub *hub; 69 70 struct drm_atomic_state *state; 71 }; 72 73 struct tegra_drm_client; 74 75 struct tegra_drm_context { 76 struct tegra_drm_client *client; 77 struct host1x_channel *channel; 78 unsigned int id; 79 }; 80 81 struct tegra_drm_client_ops { 82 int (*open_channel)(struct tegra_drm_client *client, 83 struct tegra_drm_context *context); 84 void (*close_channel)(struct tegra_drm_context *context); 85 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 86 int (*is_valid_class)(u32 class); 87 int (*submit)(struct tegra_drm_context *context, 88 struct drm_tegra_submit *args, struct drm_device *drm, 89 struct drm_file *file); 90 }; 91 92 int tegra_drm_submit(struct tegra_drm_context *context, 93 struct drm_tegra_submit *args, struct drm_device *drm, 94 struct drm_file *file); 95 96 struct tegra_drm_client { 97 struct host1x_client base; 98 struct list_head list; 99 100 const struct tegra_drm_client_ops *ops; 101 }; 102 103 static inline struct tegra_drm_client * 104 host1x_to_drm_client(struct host1x_client *client) 105 { 106 return container_of(client, struct tegra_drm_client, base); 107 } 108 109 int tegra_drm_register_client(struct tegra_drm *tegra, 110 struct tegra_drm_client *client); 111 int tegra_drm_unregister_client(struct tegra_drm *tegra, 112 struct tegra_drm_client *client); 113 114 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 115 int tegra_drm_exit(struct tegra_drm *tegra); 116 117 void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova); 118 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt, 119 dma_addr_t iova); 120 121 struct cec_notifier; 122 123 struct tegra_output { 124 struct device_node *of_node; 125 struct device *dev; 126 127 struct drm_panel *panel; 128 struct i2c_adapter *ddc; 129 const struct edid *edid; 130 struct cec_notifier *notifier; 131 unsigned int hpd_irq; 132 int hpd_gpio; 133 enum of_gpio_flags hpd_gpio_flags; 134 135 struct drm_encoder encoder; 136 struct drm_connector connector; 137 }; 138 139 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 140 { 141 return container_of(e, struct tegra_output, encoder); 142 } 143 144 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 145 { 146 return container_of(c, struct tegra_output, connector); 147 } 148 149 /* from output.c */ 150 int tegra_output_probe(struct tegra_output *output); 151 void tegra_output_remove(struct tegra_output *output); 152 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 153 void tegra_output_exit(struct tegra_output *output); 154 void tegra_output_find_possible_crtcs(struct tegra_output *output, 155 struct drm_device *drm); 156 157 int tegra_output_connector_get_modes(struct drm_connector *connector); 158 enum drm_connector_status 159 tegra_output_connector_detect(struct drm_connector *connector, bool force); 160 void tegra_output_connector_destroy(struct drm_connector *connector); 161 162 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 163 164 /* from dpaux.c */ 165 struct drm_dp_link; 166 167 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 168 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 169 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 170 int drm_dp_aux_detach(struct drm_dp_aux *aux); 171 int drm_dp_aux_enable(struct drm_dp_aux *aux); 172 int drm_dp_aux_disable(struct drm_dp_aux *aux); 173 int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding); 174 int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link, 175 u8 pattern); 176 177 /* from fb.c */ 178 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 179 unsigned int index); 180 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 181 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 182 struct tegra_bo_tiling *tiling); 183 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 184 struct drm_file *file, 185 const struct drm_mode_fb_cmd2 *cmd); 186 int tegra_drm_fb_prepare(struct drm_device *drm); 187 void tegra_drm_fb_free(struct drm_device *drm); 188 int tegra_drm_fb_init(struct drm_device *drm); 189 void tegra_drm_fb_exit(struct drm_device *drm); 190 void tegra_drm_fb_suspend(struct drm_device *drm); 191 void tegra_drm_fb_resume(struct drm_device *drm); 192 193 extern struct platform_driver tegra_display_hub_driver; 194 extern struct platform_driver tegra_dc_driver; 195 extern struct platform_driver tegra_hdmi_driver; 196 extern struct platform_driver tegra_dsi_driver; 197 extern struct platform_driver tegra_dpaux_driver; 198 extern struct platform_driver tegra_sor_driver; 199 extern struct platform_driver tegra_gr2d_driver; 200 extern struct platform_driver tegra_gr3d_driver; 201 extern struct platform_driver tegra_vic_driver; 202 203 #endif /* HOST1X_DRM_H */ 204