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_FBDEV_EMULATION 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_FBDEV_EMULATION 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 struct drm_atomic_state *state; 62 }; 63 64 struct tegra_drm_client; 65 66 struct tegra_drm_context { 67 struct tegra_drm_client *client; 68 struct host1x_channel *channel; 69 struct list_head list; 70 }; 71 72 struct tegra_drm_client_ops { 73 int (*open_channel)(struct tegra_drm_client *client, 74 struct tegra_drm_context *context); 75 void (*close_channel)(struct tegra_drm_context *context); 76 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 77 int (*submit)(struct tegra_drm_context *context, 78 struct drm_tegra_submit *args, struct drm_device *drm, 79 struct drm_file *file); 80 }; 81 82 int tegra_drm_submit(struct tegra_drm_context *context, 83 struct drm_tegra_submit *args, struct drm_device *drm, 84 struct drm_file *file); 85 86 struct tegra_drm_client { 87 struct host1x_client base; 88 struct list_head list; 89 90 const struct tegra_drm_client_ops *ops; 91 }; 92 93 static inline struct tegra_drm_client * 94 host1x_to_drm_client(struct host1x_client *client) 95 { 96 return container_of(client, struct tegra_drm_client, base); 97 } 98 99 int tegra_drm_register_client(struct tegra_drm *tegra, 100 struct tegra_drm_client *client); 101 int tegra_drm_unregister_client(struct tegra_drm *tegra, 102 struct tegra_drm_client *client); 103 104 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 105 int tegra_drm_exit(struct tegra_drm *tegra); 106 107 struct tegra_dc_soc_info; 108 struct tegra_output; 109 110 struct tegra_dc_stats { 111 unsigned long frames; 112 unsigned long vblank; 113 unsigned long underflow; 114 unsigned long overflow; 115 }; 116 117 struct tegra_dc { 118 struct host1x_client client; 119 struct host1x_syncpt *syncpt; 120 struct device *dev; 121 spinlock_t lock; 122 123 struct drm_crtc base; 124 int powergate; 125 int pipe; 126 127 struct clk *clk; 128 struct reset_control *rst; 129 void __iomem *regs; 130 int irq; 131 132 struct tegra_output *rgb; 133 134 struct tegra_dc_stats stats; 135 struct list_head list; 136 137 struct drm_info_list *debugfs_files; 138 struct drm_minor *minor; 139 struct dentry *debugfs; 140 141 /* page-flip handling */ 142 struct drm_pending_vblank_event *event; 143 144 const struct tegra_dc_soc_info *soc; 145 146 struct iommu_domain *domain; 147 }; 148 149 static inline struct tegra_dc * 150 host1x_client_to_dc(struct host1x_client *client) 151 { 152 return container_of(client, struct tegra_dc, client); 153 } 154 155 static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc) 156 { 157 return crtc ? container_of(crtc, struct tegra_dc, base) : NULL; 158 } 159 160 static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value, 161 unsigned long offset) 162 { 163 writel(value, dc->regs + (offset << 2)); 164 } 165 166 static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned long offset) 167 { 168 return readl(dc->regs + (offset << 2)); 169 } 170 171 struct tegra_dc_window { 172 struct { 173 unsigned int x; 174 unsigned int y; 175 unsigned int w; 176 unsigned int h; 177 } src; 178 struct { 179 unsigned int x; 180 unsigned int y; 181 unsigned int w; 182 unsigned int h; 183 } dst; 184 unsigned int bits_per_pixel; 185 unsigned int stride[2]; 186 unsigned long base[3]; 187 bool bottom_up; 188 189 struct tegra_bo_tiling tiling; 190 u32 format; 191 u32 swap; 192 }; 193 194 /* from dc.c */ 195 u32 tegra_dc_get_vblank_counter(struct tegra_dc *dc); 196 void tegra_dc_enable_vblank(struct tegra_dc *dc); 197 void tegra_dc_disable_vblank(struct tegra_dc *dc); 198 void tegra_dc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file); 199 void tegra_dc_commit(struct tegra_dc *dc); 200 int tegra_dc_state_setup_clock(struct tegra_dc *dc, 201 struct drm_crtc_state *crtc_state, 202 struct clk *clk, unsigned long pclk, 203 unsigned int div); 204 205 struct tegra_output { 206 struct device_node *of_node; 207 struct device *dev; 208 209 struct drm_panel *panel; 210 struct i2c_adapter *ddc; 211 const struct edid *edid; 212 unsigned int hpd_irq; 213 int hpd_gpio; 214 enum of_gpio_flags hpd_gpio_flags; 215 216 struct drm_encoder encoder; 217 struct drm_connector connector; 218 }; 219 220 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 221 { 222 return container_of(e, struct tegra_output, encoder); 223 } 224 225 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 226 { 227 return container_of(c, struct tegra_output, connector); 228 } 229 230 /* from rgb.c */ 231 int tegra_dc_rgb_probe(struct tegra_dc *dc); 232 int tegra_dc_rgb_remove(struct tegra_dc *dc); 233 int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc); 234 int tegra_dc_rgb_exit(struct tegra_dc *dc); 235 236 /* from output.c */ 237 int tegra_output_probe(struct tegra_output *output); 238 void tegra_output_remove(struct tegra_output *output); 239 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 240 void tegra_output_exit(struct tegra_output *output); 241 242 int tegra_output_connector_get_modes(struct drm_connector *connector); 243 struct drm_encoder * 244 tegra_output_connector_best_encoder(struct drm_connector *connector); 245 enum drm_connector_status 246 tegra_output_connector_detect(struct drm_connector *connector, bool force); 247 void tegra_output_connector_destroy(struct drm_connector *connector); 248 249 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 250 251 /* from dpaux.c */ 252 struct drm_dp_link; 253 254 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 255 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 256 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 257 int drm_dp_aux_detach(struct drm_dp_aux *aux); 258 int drm_dp_aux_enable(struct drm_dp_aux *aux); 259 int drm_dp_aux_disable(struct drm_dp_aux *aux); 260 int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding); 261 int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link, 262 u8 pattern); 263 264 /* from fb.c */ 265 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 266 unsigned int index); 267 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 268 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 269 struct tegra_bo_tiling *tiling); 270 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 271 struct drm_file *file, 272 const struct drm_mode_fb_cmd2 *cmd); 273 int tegra_drm_fb_prepare(struct drm_device *drm); 274 void tegra_drm_fb_free(struct drm_device *drm); 275 int tegra_drm_fb_init(struct drm_device *drm); 276 void tegra_drm_fb_exit(struct drm_device *drm); 277 void tegra_drm_fb_suspend(struct drm_device *drm); 278 void tegra_drm_fb_resume(struct drm_device *drm); 279 #ifdef CONFIG_DRM_FBDEV_EMULATION 280 void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev); 281 void tegra_fb_output_poll_changed(struct drm_device *drm); 282 #endif 283 284 extern struct platform_driver tegra_dc_driver; 285 extern struct platform_driver tegra_hdmi_driver; 286 extern struct platform_driver tegra_dsi_driver; 287 extern struct platform_driver tegra_dpaux_driver; 288 extern struct platform_driver tegra_sor_driver; 289 extern struct platform_driver tegra_gr2d_driver; 290 extern struct platform_driver tegra_gr3d_driver; 291 292 #endif /* HOST1X_DRM_H */ 293