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 16 #include <drm/drmP.h> 17 #include <drm/drm_crtc_helper.h> 18 #include <drm/drm_edid.h> 19 #include <drm/drm_fb_helper.h> 20 #include <drm/drm_fixed.h> 21 22 #include "gem.h" 23 24 struct reset_control; 25 26 struct tegra_fb { 27 struct drm_framebuffer base; 28 struct tegra_bo **planes; 29 unsigned int num_planes; 30 }; 31 32 #ifdef CONFIG_DRM_TEGRA_FBDEV 33 struct tegra_fbdev { 34 struct drm_fb_helper base; 35 struct tegra_fb *fb; 36 }; 37 #endif 38 39 struct tegra_drm { 40 struct drm_device *drm; 41 42 struct iommu_domain *domain; 43 struct drm_mm mm; 44 45 struct mutex clients_lock; 46 struct list_head clients; 47 48 #ifdef CONFIG_DRM_TEGRA_FBDEV 49 struct tegra_fbdev *fbdev; 50 #endif 51 52 unsigned int pitch_align; 53 54 struct { 55 struct drm_atomic_state *state; 56 struct work_struct work; 57 struct mutex lock; 58 } commit; 59 }; 60 61 struct tegra_drm_client; 62 63 struct tegra_drm_context { 64 struct tegra_drm_client *client; 65 struct host1x_channel *channel; 66 struct list_head list; 67 }; 68 69 struct tegra_drm_client_ops { 70 int (*open_channel)(struct tegra_drm_client *client, 71 struct tegra_drm_context *context); 72 void (*close_channel)(struct tegra_drm_context *context); 73 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 74 int (*submit)(struct tegra_drm_context *context, 75 struct drm_tegra_submit *args, struct drm_device *drm, 76 struct drm_file *file); 77 }; 78 79 int tegra_drm_submit(struct tegra_drm_context *context, 80 struct drm_tegra_submit *args, struct drm_device *drm, 81 struct drm_file *file); 82 83 struct tegra_drm_client { 84 struct host1x_client base; 85 struct list_head list; 86 87 const struct tegra_drm_client_ops *ops; 88 }; 89 90 static inline struct tegra_drm_client * 91 host1x_to_drm_client(struct host1x_client *client) 92 { 93 return container_of(client, struct tegra_drm_client, base); 94 } 95 96 int tegra_drm_register_client(struct tegra_drm *tegra, 97 struct tegra_drm_client *client); 98 int tegra_drm_unregister_client(struct tegra_drm *tegra, 99 struct tegra_drm_client *client); 100 101 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 102 int tegra_drm_exit(struct tegra_drm *tegra); 103 104 struct tegra_dc_soc_info; 105 struct tegra_output; 106 107 struct tegra_dc { 108 struct host1x_client client; 109 struct device *dev; 110 spinlock_t lock; 111 112 struct drm_crtc base; 113 int powergate; 114 int pipe; 115 116 struct clk *clk; 117 struct reset_control *rst; 118 void __iomem *regs; 119 int irq; 120 121 struct tegra_output *rgb; 122 123 struct list_head list; 124 125 struct drm_info_list *debugfs_files; 126 struct drm_minor *minor; 127 struct dentry *debugfs; 128 129 /* page-flip handling */ 130 struct drm_pending_vblank_event *event; 131 132 const struct tegra_dc_soc_info *soc; 133 134 struct iommu_domain *domain; 135 }; 136 137 static inline struct tegra_dc * 138 host1x_client_to_dc(struct host1x_client *client) 139 { 140 return container_of(client, struct tegra_dc, client); 141 } 142 143 static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc) 144 { 145 return crtc ? container_of(crtc, struct tegra_dc, base) : NULL; 146 } 147 148 static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value, 149 unsigned long offset) 150 { 151 writel(value, dc->regs + (offset << 2)); 152 } 153 154 static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned long offset) 155 { 156 return readl(dc->regs + (offset << 2)); 157 } 158 159 struct tegra_dc_window { 160 struct { 161 unsigned int x; 162 unsigned int y; 163 unsigned int w; 164 unsigned int h; 165 } src; 166 struct { 167 unsigned int x; 168 unsigned int y; 169 unsigned int w; 170 unsigned int h; 171 } dst; 172 unsigned int bits_per_pixel; 173 unsigned int stride[2]; 174 unsigned long base[3]; 175 bool bottom_up; 176 177 struct tegra_bo_tiling tiling; 178 u32 format; 179 u32 swap; 180 }; 181 182 /* from dc.c */ 183 void tegra_dc_enable_vblank(struct tegra_dc *dc); 184 void tegra_dc_disable_vblank(struct tegra_dc *dc); 185 void tegra_dc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file); 186 void tegra_dc_commit(struct tegra_dc *dc); 187 int tegra_dc_setup_clock(struct tegra_dc *dc, struct clk *parent, 188 unsigned long pclk, unsigned int div); 189 int tegra_dc_state_setup_clock(struct tegra_dc *dc, 190 struct drm_crtc_state *crtc_state, 191 struct clk *clk, unsigned long pclk, 192 unsigned int div); 193 194 struct tegra_output { 195 struct device_node *of_node; 196 struct device *dev; 197 198 struct drm_panel *panel; 199 struct i2c_adapter *ddc; 200 const struct edid *edid; 201 unsigned int hpd_irq; 202 int hpd_gpio; 203 204 struct drm_encoder encoder; 205 struct drm_connector connector; 206 }; 207 208 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 209 { 210 return container_of(e, struct tegra_output, encoder); 211 } 212 213 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 214 { 215 return container_of(c, struct tegra_output, connector); 216 } 217 218 /* from rgb.c */ 219 int tegra_dc_rgb_probe(struct tegra_dc *dc); 220 int tegra_dc_rgb_remove(struct tegra_dc *dc); 221 int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc); 222 int tegra_dc_rgb_exit(struct tegra_dc *dc); 223 224 /* from output.c */ 225 int tegra_output_probe(struct tegra_output *output); 226 void tegra_output_remove(struct tegra_output *output); 227 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 228 void tegra_output_exit(struct tegra_output *output); 229 230 int tegra_output_connector_get_modes(struct drm_connector *connector); 231 struct drm_encoder * 232 tegra_output_connector_best_encoder(struct drm_connector *connector); 233 enum drm_connector_status 234 tegra_output_connector_detect(struct drm_connector *connector, bool force); 235 void tegra_output_connector_destroy(struct drm_connector *connector); 236 237 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 238 239 /* from dpaux.c */ 240 struct tegra_dpaux; 241 struct drm_dp_link; 242 243 struct tegra_dpaux *tegra_dpaux_find_by_of_node(struct device_node *np); 244 enum drm_connector_status tegra_dpaux_detect(struct tegra_dpaux *dpaux); 245 int tegra_dpaux_attach(struct tegra_dpaux *dpaux, struct tegra_output *output); 246 int tegra_dpaux_detach(struct tegra_dpaux *dpaux); 247 int tegra_dpaux_enable(struct tegra_dpaux *dpaux); 248 int tegra_dpaux_disable(struct tegra_dpaux *dpaux); 249 int tegra_dpaux_prepare(struct tegra_dpaux *dpaux, u8 encoding); 250 int tegra_dpaux_train(struct tegra_dpaux *dpaux, struct drm_dp_link *link, 251 u8 pattern); 252 253 /* from fb.c */ 254 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 255 unsigned int index); 256 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 257 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 258 struct tegra_bo_tiling *tiling); 259 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 260 struct drm_file *file, 261 struct drm_mode_fb_cmd2 *cmd); 262 int tegra_drm_fb_prepare(struct drm_device *drm); 263 void tegra_drm_fb_free(struct drm_device *drm); 264 int tegra_drm_fb_init(struct drm_device *drm); 265 void tegra_drm_fb_exit(struct drm_device *drm); 266 #ifdef CONFIG_DRM_TEGRA_FBDEV 267 void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev); 268 void tegra_fb_output_poll_changed(struct drm_device *drm); 269 #endif 270 271 extern struct platform_driver tegra_dc_driver; 272 extern struct platform_driver tegra_dsi_driver; 273 extern struct platform_driver tegra_sor_driver; 274 extern struct platform_driver tegra_hdmi_driver; 275 extern struct platform_driver tegra_dpaux_driver; 276 extern struct platform_driver tegra_gr2d_driver; 277 extern struct platform_driver tegra_gr3d_driver; 278 279 #endif /* HOST1X_DRM_H */ 280