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_framebuffer.h>
22
23 #include "dp/dp_hw.h"
24
25 #define HIBMC_MIN_VECTORS 1
26 #define HIBMC_MAX_VECTORS 2
27
28 struct hibmc_vdac {
29 struct drm_device *dev;
30 struct drm_encoder encoder;
31 struct drm_connector connector;
32 struct i2c_adapter adapter;
33 struct i2c_algo_bit_data bit_data;
34 };
35
36 struct hibmc_drm_private {
37 /* hw */
38 void __iomem *mmio;
39
40 /* drm */
41 struct drm_device dev;
42 struct drm_plane primary_plane;
43 struct drm_crtc crtc;
44 struct hibmc_vdac vdac;
45 struct hibmc_dp dp;
46 };
47
to_hibmc_vdac(struct drm_connector * connector)48 static inline struct hibmc_vdac *to_hibmc_vdac(struct drm_connector *connector)
49 {
50 return container_of(connector, struct hibmc_vdac, connector);
51 }
52
to_hibmc_dp(struct drm_connector * connector)53 static inline struct hibmc_dp *to_hibmc_dp(struct drm_connector *connector)
54 {
55 return container_of(connector, struct hibmc_dp, connector);
56 }
57
to_hibmc_drm_private(struct drm_device * dev)58 static inline struct hibmc_drm_private *to_hibmc_drm_private(struct drm_device *dev)
59 {
60 return container_of(dev, struct hibmc_drm_private, dev);
61 }
62
63 void hibmc_set_power_mode(struct hibmc_drm_private *priv,
64 u32 power_mode);
65 void hibmc_set_current_gate(struct hibmc_drm_private *priv,
66 u32 gate);
67
68 int hibmc_de_init(struct hibmc_drm_private *priv);
69 int hibmc_vdac_init(struct hibmc_drm_private *priv);
70
71 int hibmc_ddc_create(struct drm_device *drm_dev, struct hibmc_vdac *connector);
72
73 int hibmc_dp_init(struct hibmc_drm_private *priv);
74
75 void hibmc_debugfs_init(struct drm_connector *connector, struct dentry *root);
76
77 irqreturn_t hibmc_dp_hpd_isr(int irq, void *arg);
78
79 #endif
80