drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /* Hisilicon Hibmc SoC drm driver
   3  *
   4  * Based on the bochs drm driver.
   5  *
   6  * Copyright (c) 2016 Huawei Limited.
   7  *
   8  * Author:
   9  *      Rongrong Zou <zourongrong@huawei.com>
  10  *      Rongrong Zou <zourongrong@gmail.com>
  11  *      Jianhua Li <lijianhua@huawei.com>
  12  */
  13
  14 #ifndef HIBMC_DRM_DRV_H
  15 #define HIBMC_DRM_DRV_H
  16
  17 #include <linux/gpio/consumer.h>
  18 #include <linux/i2c-algo-bit.h>
  19 #include <linux/i2c.h>
  20
  21 #include <drm/drm_edid.h>
  22 #include <drm/drm_fb_helper.h>
  23 #include <drm/drm_framebuffer.h>
  24
  25 struct hibmc_connector {
  26         struct drm_connector base;
  27
  28         struct i2c_adapter adapter;
  29         struct i2c_algo_bit_data bit_data;
  30 };
  31
  32 struct hibmc_drm_private {
  33         /* hw */
  34         void __iomem   *mmio;
  35         void __iomem   *fb_map;
  36         resource_size_t  fb_base;
  37         resource_size_t  fb_size;
  38
  39         /* drm */
  40         struct drm_device  *dev;
  41         struct drm_plane primary_plane;
  42         struct drm_crtc crtc;
  43         struct drm_encoder encoder;
  44         struct hibmc_connector connector;
  45         bool mode_config_initialized;
  46 };
  47
  48 static inline struct hibmc_connector *to_hibmc_connector(struct drm_connector *connector)
  49 {
  50         return container_of(connector, struct hibmc_connector, base);
  51 }
  52
  53 static inline struct hibmc_drm_private *to_hibmc_drm_private(struct drm_device *dev)
  54 {
  55         return dev->dev_private;
  56 }
  57
  58 void hibmc_set_power_mode(struct hibmc_drm_private *priv,
  59                           u32 power_mode);
  60 void hibmc_set_current_gate(struct hibmc_drm_private *priv,
  61                             u32 gate);
  62
  63 int hibmc_de_init(struct hibmc_drm_private *priv);
  64 int hibmc_vdac_init(struct hibmc_drm_private *priv);
  65
  66 int hibmc_mm_init(struct hibmc_drm_private *hibmc);
  67 void hibmc_mm_fini(struct hibmc_drm_private *hibmc);
  68 int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,
  69                       struct drm_mode_create_dumb *args);
  70 int hibmc_ddc_create(struct drm_device *drm_dev, struct hibmc_connector *connector);
  71
  72 extern const struct drm_mode_config_funcs hibmc_mode_funcs;
  73
  74 #endif