hisilicon/hibmc/hibmc_drm_drv.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /* Hisilicon Hibmc SoC drm driver
0003  *
0004  * Based on the bochs drm driver.
0005  *
0006  * Copyright (c) 2016 Huawei Limited.
0007  *
0008  * Author:
0009  *  Rongrong Zou <zourongrong@huawei.com>
0010  *  Rongrong Zou <zourongrong@gmail.com>
0011  *  Jianhua Li <lijianhua@huawei.com>
0012  */
0013
0014 #ifndef HIBMC_DRM_DRV_H
0015 #define HIBMC_DRM_DRV_H
0016
0017 #include <linux/gpio/consumer.h>
0018 #include <linux/i2c-algo-bit.h>
0019 #include <linux/i2c.h>
0020
0021 #include <drm/drm_edid.h>
0022 #include <drm/drm_fb_helper.h>
0023 #include <drm/drm_framebuffer.h>
0024
0025 struct hibmc_connector {
0026     struct drm_connector base;
0027
0028     struct i2c_adapter adapter;
0029     struct i2c_algo_bit_data bit_data;
0030 };
0031
0032 struct hibmc_drm_private {
0033     /* hw */
0034     void __iomem   *mmio;
0035     void __iomem   *fb_map;
0036     resource_size_t  fb_base;
0037     resource_size_t  fb_size;
0038
0039     /* drm */
0040     struct drm_device dev;
0041     struct drm_plane primary_plane;
0042     struct drm_crtc crtc;
0043     struct drm_encoder encoder;
0044     struct hibmc_connector connector;
0045 };
0046
0047 static inline struct hibmc_connector *to_hibmc_connector(struct drm_connector *connector)
0048 {
0049     return container_of(connector, struct hibmc_connector, base);
0050 }
0051
0052 static inline struct hibmc_drm_private *to_hibmc_drm_private(struct drm_device *dev)
0053 {
0054     return container_of(dev, struct hibmc_drm_private, dev);
0055 }
0056
0057 void hibmc_set_power_mode(struct hibmc_drm_private *priv,
0058               u32 power_mode);
0059 void hibmc_set_current_gate(struct hibmc_drm_private *priv,
0060                 u32 gate);
0061
0062 int hibmc_de_init(struct hibmc_drm_private *priv);
0063 int hibmc_vdac_init(struct hibmc_drm_private *priv);
0064
0065 int hibmc_mm_init(struct hibmc_drm_private *hibmc);
0066 int hibmc_ddc_create(struct drm_device *drm_dev, struct hibmc_connector *connector);
0067
0068 #endif