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_crtc_helper.h> 20 #include <drm/drm_edid.h> 21 #include <drm/drm_encoder.h> 22 #include <drm/drm_fb_helper.h> 23 #include <drm/drm_fixed.h> 24 25 #include "gem.h" 26 #include "trace.h" 27 28 struct reset_control; 29 30 struct tegra_fb { 31 struct drm_framebuffer base; 32 struct tegra_bo **planes; 33 unsigned int num_planes; 34 }; 35 36 #ifdef CONFIG_DRM_FBDEV_EMULATION 37 struct tegra_fbdev { 38 struct drm_fb_helper base; 39 struct tegra_fb *fb; 40 }; 41 #endif 42 43 struct tegra_drm { 44 struct drm_device *drm; 45 46 struct iommu_domain *domain; 47 struct mutex mm_lock; 48 struct drm_mm mm; 49 50 struct { 51 struct iova_domain domain; 52 unsigned long shift; 53 unsigned long limit; 54 } carveout; 55 56 struct mutex clients_lock; 57 struct list_head clients; 58 59 #ifdef CONFIG_DRM_FBDEV_EMULATION 60 struct tegra_fbdev *fbdev; 61 #endif 62 63 unsigned int pitch_align; 64 65 struct { 66 struct drm_atomic_state *state; 67 struct work_struct work; 68 struct mutex lock; 69 } commit; 70 71 struct drm_atomic_state *state; 72 }; 73 74 struct tegra_drm_client; 75 76 struct tegra_drm_context { 77 struct tegra_drm_client *client; 78 struct host1x_channel *channel; 79 unsigned int id; 80 }; 81 82 struct tegra_drm_client_ops { 83 int (*open_channel)(struct tegra_drm_client *client, 84 struct tegra_drm_context *context); 85 void (*close_channel)(struct tegra_drm_context *context); 86 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 87 int (*is_valid_class)(u32 class); 88 int (*submit)(struct tegra_drm_context *context, 89 struct drm_tegra_submit *args, struct drm_device *drm, 90 struct drm_file *file); 91 }; 92 93 int tegra_drm_submit(struct tegra_drm_context *context, 94 struct drm_tegra_submit *args, struct drm_device *drm, 95 struct drm_file *file); 96 97 struct tegra_drm_client { 98 struct host1x_client base; 99 struct list_head list; 100 101 const struct tegra_drm_client_ops *ops; 102 }; 103 104 static inline struct tegra_drm_client * 105 host1x_to_drm_client(struct host1x_client *client) 106 { 107 return container_of(client, struct tegra_drm_client, base); 108 } 109 110 int tegra_drm_register_client(struct tegra_drm *tegra, 111 struct tegra_drm_client *client); 112 int tegra_drm_unregister_client(struct tegra_drm *tegra, 113 struct tegra_drm_client *client); 114 115 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 116 int tegra_drm_exit(struct tegra_drm *tegra); 117 118 void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova); 119 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt, 120 dma_addr_t iova); 121 122 struct cec_notifier; 123 124 struct tegra_output { 125 struct device_node *of_node; 126 struct device *dev; 127 128 struct drm_panel *panel; 129 struct i2c_adapter *ddc; 130 const struct edid *edid; 131 struct cec_notifier *notifier; 132 unsigned int hpd_irq; 133 int hpd_gpio; 134 enum of_gpio_flags hpd_gpio_flags; 135 136 struct drm_encoder encoder; 137 struct drm_connector connector; 138 }; 139 140 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 141 { 142 return container_of(e, struct tegra_output, encoder); 143 } 144 145 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 146 { 147 return container_of(c, struct tegra_output, connector); 148 } 149 150 /* from output.c */ 151 int tegra_output_probe(struct tegra_output *output); 152 void tegra_output_remove(struct tegra_output *output); 153 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 154 void tegra_output_exit(struct tegra_output *output); 155 156 int tegra_output_connector_get_modes(struct drm_connector *connector); 157 enum drm_connector_status 158 tegra_output_connector_detect(struct drm_connector *connector, bool force); 159 void tegra_output_connector_destroy(struct drm_connector *connector); 160 161 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 162 163 /* from dpaux.c */ 164 struct drm_dp_link; 165 166 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 167 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 168 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 169 int drm_dp_aux_detach(struct drm_dp_aux *aux); 170 int drm_dp_aux_enable(struct drm_dp_aux *aux); 171 int drm_dp_aux_disable(struct drm_dp_aux *aux); 172 int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding); 173 int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link, 174 u8 pattern); 175 176 /* from fb.c */ 177 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 178 unsigned int index); 179 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 180 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 181 struct tegra_bo_tiling *tiling); 182 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 183 struct drm_file *file, 184 const struct drm_mode_fb_cmd2 *cmd); 185 int tegra_drm_fb_prepare(struct drm_device *drm); 186 void tegra_drm_fb_free(struct drm_device *drm); 187 int tegra_drm_fb_init(struct drm_device *drm); 188 void tegra_drm_fb_exit(struct drm_device *drm); 189 void tegra_drm_fb_suspend(struct drm_device *drm); 190 void tegra_drm_fb_resume(struct drm_device *drm); 191 #ifdef CONFIG_DRM_FBDEV_EMULATION 192 void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev); 193 void tegra_fb_output_poll_changed(struct drm_device *drm); 194 #endif 195 196 extern struct platform_driver tegra_dc_driver; 197 extern struct platform_driver tegra_hdmi_driver; 198 extern struct platform_driver tegra_dsi_driver; 199 extern struct platform_driver tegra_dpaux_driver; 200 extern struct platform_driver tegra_sor_driver; 201 extern struct platform_driver tegra_gr2d_driver; 202 extern struct platform_driver tegra_gr3d_driver; 203 extern struct platform_driver tegra_vic_driver; 204 205 #endif /* HOST1X_DRM_H */ 206