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/of_gpio.h> 16 17 #include <drm/drmP.h> 18 #include <drm/drm_crtc_helper.h> 19 #include <drm/drm_edid.h> 20 #include <drm/drm_fb_helper.h> 21 #include <drm/drm_fixed.h> 22 23 #include "gem.h" 24 25 struct reset_control; 26 27 struct tegra_fb { 28 struct drm_framebuffer base; 29 struct tegra_bo **planes; 30 unsigned int num_planes; 31 }; 32 33 #ifdef CONFIG_DRM_TEGRA_FBDEV 34 struct tegra_fbdev { 35 struct drm_fb_helper base; 36 struct tegra_fb *fb; 37 }; 38 #endif 39 40 struct tegra_drm { 41 struct drm_device *drm; 42 43 struct iommu_domain *domain; 44 struct drm_mm mm; 45 46 struct mutex clients_lock; 47 struct list_head clients; 48 49 #ifdef CONFIG_DRM_TEGRA_FBDEV 50 struct tegra_fbdev *fbdev; 51 #endif 52 53 unsigned int pitch_align; 54 55 struct { 56 struct drm_atomic_state *state; 57 struct work_struct work; 58 struct mutex lock; 59 } commit; 60 }; 61 62 struct tegra_drm_client; 63 64 struct tegra_drm_context { 65 struct tegra_drm_client *client; 66 struct host1x_channel *channel; 67 struct list_head list; 68 }; 69 70 struct tegra_drm_client_ops { 71 int (*open_channel)(struct tegra_drm_client *client, 72 struct tegra_drm_context *context); 73 void (*close_channel)(struct tegra_drm_context *context); 74 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 75 int (*submit)(struct tegra_drm_context *context, 76 struct drm_tegra_submit *args, struct drm_device *drm, 77 struct drm_file *file); 78 }; 79 80 int tegra_drm_submit(struct tegra_drm_context *context, 81 struct drm_tegra_submit *args, struct drm_device *drm, 82 struct drm_file *file); 83 84 struct tegra_drm_client { 85 struct host1x_client base; 86 struct list_head list; 87 88 const struct tegra_drm_client_ops *ops; 89 }; 90 91 static inline struct tegra_drm_client * 92 host1x_to_drm_client(struct host1x_client *client) 93 { 94 return container_of(client, struct tegra_drm_client, base); 95 } 96 97 int tegra_drm_register_client(struct tegra_drm *tegra, 98 struct tegra_drm_client *client); 99 int tegra_drm_unregister_client(struct tegra_drm *tegra, 100 struct tegra_drm_client *client); 101 102 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 103 int tegra_drm_exit(struct tegra_drm *tegra); 104 105 struct tegra_dc_soc_info; 106 struct tegra_output; 107 108 struct tegra_dc_stats { 109 unsigned long frames; 110 unsigned long vblank; 111 unsigned long underflow; 112 unsigned long overflow; 113 }; 114 115 struct tegra_dc { 116 struct host1x_client client; 117 struct host1x_syncpt *syncpt; 118 struct device *dev; 119 spinlock_t lock; 120 121 struct drm_crtc base; 122 int powergate; 123 int pipe; 124 125 struct clk *clk; 126 struct reset_control *rst; 127 void __iomem *regs; 128 int irq; 129 130 struct tegra_output *rgb; 131 132 struct tegra_dc_stats stats; 133 struct list_head list; 134 135 struct drm_info_list *debugfs_files; 136 struct drm_minor *minor; 137 struct dentry *debugfs; 138 139 /* page-flip handling */ 140 struct drm_pending_vblank_event *event; 141 142 const struct tegra_dc_soc_info *soc; 143 144 struct iommu_domain *domain; 145 }; 146 147 static inline struct tegra_dc * 148 host1x_client_to_dc(struct host1x_client *client) 149 { 150 return container_of(client, struct tegra_dc, client); 151 } 152 153 static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc) 154 { 155 return crtc ? container_of(crtc, struct tegra_dc, base) : NULL; 156 } 157 158 static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value, 159 unsigned long offset) 160 { 161 writel(value, dc->regs + (offset << 2)); 162 } 163 164 static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned long offset) 165 { 166 return readl(dc->regs + (offset << 2)); 167 } 168 169 struct tegra_dc_window { 170 struct { 171 unsigned int x; 172 unsigned int y; 173 unsigned int w; 174 unsigned int h; 175 } src; 176 struct { 177 unsigned int x; 178 unsigned int y; 179 unsigned int w; 180 unsigned int h; 181 } dst; 182 unsigned int bits_per_pixel; 183 unsigned int stride[2]; 184 unsigned long base[3]; 185 bool bottom_up; 186 187 struct tegra_bo_tiling tiling; 188 u32 format; 189 u32 swap; 190 }; 191 192 /* from dc.c */ 193 u32 tegra_dc_get_vblank_counter(struct tegra_dc *dc); 194 void tegra_dc_enable_vblank(struct tegra_dc *dc); 195 void tegra_dc_disable_vblank(struct tegra_dc *dc); 196 void tegra_dc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file); 197 void tegra_dc_commit(struct tegra_dc *dc); 198 int tegra_dc_state_setup_clock(struct tegra_dc *dc, 199 struct drm_crtc_state *crtc_state, 200 struct clk *clk, unsigned long pclk, 201 unsigned int div); 202 203 struct tegra_output { 204 struct device_node *of_node; 205 struct device *dev; 206 207 struct drm_panel *panel; 208 struct i2c_adapter *ddc; 209 const struct edid *edid; 210 unsigned int hpd_irq; 211 int hpd_gpio; 212 enum of_gpio_flags hpd_gpio_flags; 213 214 struct drm_encoder encoder; 215 struct drm_connector connector; 216 }; 217 218 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 219 { 220 return container_of(e, struct tegra_output, encoder); 221 } 222 223 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 224 { 225 return container_of(c, struct tegra_output, connector); 226 } 227 228 /* from rgb.c */ 229 int tegra_dc_rgb_probe(struct tegra_dc *dc); 230 int tegra_dc_rgb_remove(struct tegra_dc *dc); 231 int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc); 232 int tegra_dc_rgb_exit(struct tegra_dc *dc); 233 234 /* from output.c */ 235 int tegra_output_probe(struct tegra_output *output); 236 void tegra_output_remove(struct tegra_output *output); 237 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 238 void tegra_output_exit(struct tegra_output *output); 239 240 int tegra_output_connector_get_modes(struct drm_connector *connector); 241 struct drm_encoder * 242 tegra_output_connector_best_encoder(struct drm_connector *connector); 243 enum drm_connector_status 244 tegra_output_connector_detect(struct drm_connector *connector, bool force); 245 void tegra_output_connector_destroy(struct drm_connector *connector); 246 247 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 248 249 /* from dpaux.c */ 250 struct tegra_dpaux; 251 struct drm_dp_link; 252 253 struct tegra_dpaux *tegra_dpaux_find_by_of_node(struct device_node *np); 254 enum drm_connector_status tegra_dpaux_detect(struct tegra_dpaux *dpaux); 255 int tegra_dpaux_attach(struct tegra_dpaux *dpaux, struct tegra_output *output); 256 int tegra_dpaux_detach(struct tegra_dpaux *dpaux); 257 int tegra_dpaux_enable(struct tegra_dpaux *dpaux); 258 int tegra_dpaux_disable(struct tegra_dpaux *dpaux); 259 int tegra_dpaux_prepare(struct tegra_dpaux *dpaux, u8 encoding); 260 int tegra_dpaux_train(struct tegra_dpaux *dpaux, struct drm_dp_link *link, 261 u8 pattern); 262 263 /* from fb.c */ 264 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 265 unsigned int index); 266 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 267 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 268 struct tegra_bo_tiling *tiling); 269 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 270 struct drm_file *file, 271 struct drm_mode_fb_cmd2 *cmd); 272 int tegra_drm_fb_prepare(struct drm_device *drm); 273 void tegra_drm_fb_free(struct drm_device *drm); 274 int tegra_drm_fb_init(struct drm_device *drm); 275 void tegra_drm_fb_exit(struct drm_device *drm); 276 #ifdef CONFIG_DRM_TEGRA_FBDEV 277 void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev); 278 void tegra_fb_output_poll_changed(struct drm_device *drm); 279 #endif 280 281 extern struct platform_driver tegra_dc_driver; 282 extern struct platform_driver tegra_dsi_driver; 283 extern struct platform_driver tegra_sor_driver; 284 extern struct platform_driver tegra_hdmi_driver; 285 extern struct platform_driver tegra_dpaux_driver; 286 extern struct platform_driver tegra_gr2d_driver; 287 extern struct platform_driver tegra_gr3d_driver; 288 289 #endif /* HOST1X_DRM_H */ 290