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_encoder.h> 21 #include <drm/drm_fb_helper.h> 22 #include <drm/drm_fixed.h> 23 24 #include "gem.h" 25 26 struct reset_control; 27 28 struct tegra_fb { 29 struct drm_framebuffer base; 30 struct tegra_bo **planes; 31 unsigned int num_planes; 32 }; 33 34 #ifdef CONFIG_DRM_FBDEV_EMULATION 35 struct tegra_fbdev { 36 struct drm_fb_helper base; 37 struct tegra_fb *fb; 38 }; 39 #endif 40 41 struct tegra_drm { 42 struct drm_device *drm; 43 44 struct iommu_domain *domain; 45 struct mutex mm_lock; 46 struct drm_mm mm; 47 48 struct mutex clients_lock; 49 struct list_head clients; 50 51 #ifdef CONFIG_DRM_FBDEV_EMULATION 52 struct tegra_fbdev *fbdev; 53 #endif 54 55 unsigned int pitch_align; 56 57 struct { 58 struct drm_atomic_state *state; 59 struct work_struct work; 60 struct mutex lock; 61 } commit; 62 63 struct drm_atomic_state *state; 64 }; 65 66 struct tegra_drm_client; 67 68 struct tegra_drm_context { 69 struct tegra_drm_client *client; 70 struct host1x_channel *channel; 71 unsigned int id; 72 }; 73 74 struct tegra_drm_client_ops { 75 int (*open_channel)(struct tegra_drm_client *client, 76 struct tegra_drm_context *context); 77 void (*close_channel)(struct tegra_drm_context *context); 78 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 79 int (*submit)(struct tegra_drm_context *context, 80 struct drm_tegra_submit *args, struct drm_device *drm, 81 struct drm_file *file); 82 }; 83 84 int tegra_drm_submit(struct tegra_drm_context *context, 85 struct drm_tegra_submit *args, struct drm_device *drm, 86 struct drm_file *file); 87 88 struct tegra_drm_client { 89 struct host1x_client base; 90 struct list_head list; 91 92 const struct tegra_drm_client_ops *ops; 93 }; 94 95 static inline struct tegra_drm_client * 96 host1x_to_drm_client(struct host1x_client *client) 97 { 98 return container_of(client, struct tegra_drm_client, base); 99 } 100 101 int tegra_drm_register_client(struct tegra_drm *tegra, 102 struct tegra_drm_client *client); 103 int tegra_drm_unregister_client(struct tegra_drm *tegra, 104 struct tegra_drm_client *client); 105 106 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 107 int tegra_drm_exit(struct tegra_drm *tegra); 108 109 struct tegra_dc_soc_info; 110 struct tegra_output; 111 112 struct tegra_dc_stats { 113 unsigned long frames; 114 unsigned long vblank; 115 unsigned long underflow; 116 unsigned long overflow; 117 }; 118 119 struct tegra_dc { 120 struct host1x_client client; 121 struct host1x_syncpt *syncpt; 122 struct device *dev; 123 spinlock_t lock; 124 125 struct drm_crtc base; 126 unsigned int powergate; 127 int pipe; 128 129 struct clk *clk; 130 struct reset_control *rst; 131 void __iomem *regs; 132 int irq; 133 134 struct tegra_output *rgb; 135 136 struct tegra_dc_stats stats; 137 struct list_head list; 138 139 struct drm_info_list *debugfs_files; 140 struct drm_minor *minor; 141 struct dentry *debugfs; 142 143 /* page-flip handling */ 144 struct drm_pending_vblank_event *event; 145 146 const struct tegra_dc_soc_info *soc; 147 148 struct iommu_domain *domain; 149 }; 150 151 static inline struct tegra_dc * 152 host1x_client_to_dc(struct host1x_client *client) 153 { 154 return container_of(client, struct tegra_dc, client); 155 } 156 157 static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc) 158 { 159 return crtc ? container_of(crtc, struct tegra_dc, base) : NULL; 160 } 161 162 static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value, 163 unsigned long offset) 164 { 165 writel(value, dc->regs + (offset << 2)); 166 } 167 168 static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned long offset) 169 { 170 return readl(dc->regs + (offset << 2)); 171 } 172 173 struct tegra_dc_window { 174 struct { 175 unsigned int x; 176 unsigned int y; 177 unsigned int w; 178 unsigned int h; 179 } src; 180 struct { 181 unsigned int x; 182 unsigned int y; 183 unsigned int w; 184 unsigned int h; 185 } dst; 186 unsigned int bits_per_pixel; 187 unsigned int stride[2]; 188 unsigned long base[3]; 189 bool bottom_up; 190 191 struct tegra_bo_tiling tiling; 192 u32 format; 193 u32 swap; 194 }; 195 196 /* from dc.c */ 197 u32 tegra_dc_get_vblank_counter(struct tegra_dc *dc); 198 void tegra_dc_enable_vblank(struct tegra_dc *dc); 199 void tegra_dc_disable_vblank(struct tegra_dc *dc); 200 void tegra_dc_commit(struct tegra_dc *dc); 201 int tegra_dc_state_setup_clock(struct tegra_dc *dc, 202 struct drm_crtc_state *crtc_state, 203 struct clk *clk, unsigned long pclk, 204 unsigned int div); 205 206 struct tegra_output { 207 struct device_node *of_node; 208 struct device *dev; 209 210 struct drm_panel *panel; 211 struct i2c_adapter *ddc; 212 const struct edid *edid; 213 unsigned int hpd_irq; 214 int hpd_gpio; 215 enum of_gpio_flags hpd_gpio_flags; 216 217 struct drm_encoder encoder; 218 struct drm_connector connector; 219 }; 220 221 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 222 { 223 return container_of(e, struct tegra_output, encoder); 224 } 225 226 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 227 { 228 return container_of(c, struct tegra_output, connector); 229 } 230 231 /* from rgb.c */ 232 int tegra_dc_rgb_probe(struct tegra_dc *dc); 233 int tegra_dc_rgb_remove(struct tegra_dc *dc); 234 int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc); 235 int tegra_dc_rgb_exit(struct tegra_dc *dc); 236 237 /* from output.c */ 238 int tegra_output_probe(struct tegra_output *output); 239 void tegra_output_remove(struct tegra_output *output); 240 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 241 void tegra_output_exit(struct tegra_output *output); 242 243 int tegra_output_connector_get_modes(struct drm_connector *connector); 244 enum drm_connector_status 245 tegra_output_connector_detect(struct drm_connector *connector, bool force); 246 void tegra_output_connector_destroy(struct drm_connector *connector); 247 248 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 249 250 /* from dpaux.c */ 251 struct drm_dp_link; 252 253 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 254 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 255 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 256 int drm_dp_aux_detach(struct drm_dp_aux *aux); 257 int drm_dp_aux_enable(struct drm_dp_aux *aux); 258 int drm_dp_aux_disable(struct drm_dp_aux *aux); 259 int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding); 260 int drm_dp_aux_train(struct drm_dp_aux *aux, 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 const 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 void tegra_drm_fb_suspend(struct drm_device *drm); 277 void tegra_drm_fb_resume(struct drm_device *drm); 278 #ifdef CONFIG_DRM_FBDEV_EMULATION 279 void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev); 280 void tegra_fb_output_poll_changed(struct drm_device *drm); 281 #endif 282 283 extern struct platform_driver tegra_dc_driver; 284 extern struct platform_driver tegra_hdmi_driver; 285 extern struct platform_driver tegra_dsi_driver; 286 extern struct platform_driver tegra_dpaux_driver; 287 extern struct platform_driver tegra_sor_driver; 288 extern struct platform_driver tegra_gr2d_driver; 289 extern struct platform_driver tegra_gr3d_driver; 290 291 #endif /* HOST1X_DRM_H */ 292