1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
4 */
5
6 #ifndef __DSI_CONNECTOR_H__
7 #define __DSI_CONNECTOR_H__
8
9 #include <linux/of_platform.h>
10 #include <linux/platform_device.h>
11
12 #include <drm/drm_bridge.h>
13 #include <drm/drm_crtc.h>
14 #include <drm/drm_mipi_dsi.h>
15
16 #include "msm_drv.h"
17 #include "disp/msm_disp_snapshot.h"
18
19 #define DSI_0 0
20 #define DSI_1 1
21 #define DSI_MAX 2
22
23 struct msm_dsi_phy_shared_timings;
24 struct msm_dsi_phy_clk_request;
25
26 enum msm_dsi_phy_usecase {
27 MSM_DSI_PHY_STANDALONE,
28 MSM_DSI_PHY_MASTER,
29 MSM_DSI_PHY_SLAVE,
30 };
31
32 #define DSI_BUS_CLK_MAX 4
33
34 struct msm_dsi {
35 struct drm_device *dev;
36 struct platform_device *pdev;
37
38 /* internal dsi bridge attached to MDP interface */
39 struct drm_bridge *bridge;
40
41 struct mipi_dsi_host *host;
42 struct msm_dsi_phy *phy;
43
44 /*
45 * external_bridge connected to dsi bridge output
46 */
47 struct drm_bridge *external_bridge;
48
49 struct device *phy_dev;
50 bool phy_enabled;
51
52 /* the encoder we are hooked to (outside of dsi block) */
53 struct drm_encoder *encoder;
54
55 int id;
56 };
57
58 /* dsi manager */
59 struct drm_bridge *msm_dsi_manager_bridge_init(u8 id);
60 void msm_dsi_manager_bridge_destroy(struct drm_bridge *bridge);
61 int msm_dsi_manager_ext_bridge_init(u8 id);
62 int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg);
63 bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len);
64 int msm_dsi_manager_register(struct msm_dsi *msm_dsi);
65 void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi);
66 void msm_dsi_manager_tpg_enable(void);
67
68 /* msm dsi */
msm_dsi_device_connected(struct msm_dsi * msm_dsi)69 static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
70 {
71 return msm_dsi->external_bridge;
72 }
73
74 /* dsi host */
75 struct msm_dsi_host;
76 int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
77 const struct mipi_dsi_msg *msg);
78 void msm_dsi_host_xfer_restore(struct mipi_dsi_host *host,
79 const struct mipi_dsi_msg *msg);
80 int msm_dsi_host_cmd_tx(struct mipi_dsi_host *host,
81 const struct mipi_dsi_msg *msg);
82 int msm_dsi_host_cmd_rx(struct mipi_dsi_host *host,
83 const struct mipi_dsi_msg *msg);
84 void msm_dsi_host_cmd_xfer_commit(struct mipi_dsi_host *host,
85 u32 dma_base, u32 len);
86 int msm_dsi_host_enable(struct mipi_dsi_host *host);
87 int msm_dsi_host_disable(struct mipi_dsi_host *host);
88 void msm_dsi_host_enable_irq(struct mipi_dsi_host *host);
89 void msm_dsi_host_disable_irq(struct mipi_dsi_host *host);
90 int msm_dsi_host_power_on(struct mipi_dsi_host *host,
91 struct msm_dsi_phy_shared_timings *phy_shared_timings,
92 bool is_bonded_dsi, struct msm_dsi_phy *phy);
93 int msm_dsi_host_power_off(struct mipi_dsi_host *host);
94 int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
95 const struct drm_display_mode *mode);
96 enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host,
97 const struct drm_display_mode *mode);
98 unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host);
99 int msm_dsi_host_register(struct mipi_dsi_host *host);
100 void msm_dsi_host_unregister(struct mipi_dsi_host *host);
101 void msm_dsi_host_set_phy_mode(struct mipi_dsi_host *host,
102 struct msm_dsi_phy *src_phy);
103 int msm_dsi_host_set_src_pll(struct mipi_dsi_host *host,
104 struct msm_dsi_phy *src_phy);
105 void msm_dsi_host_reset_phy(struct mipi_dsi_host *host);
106 void msm_dsi_host_get_phy_clk_req(struct mipi_dsi_host *host,
107 struct msm_dsi_phy_clk_request *clk_req,
108 bool is_bonded_dsi);
109 void msm_dsi_host_destroy(struct mipi_dsi_host *host);
110 int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
111 struct drm_device *dev);
112 int msm_dsi_host_init(struct msm_dsi *msm_dsi);
113 int msm_dsi_runtime_suspend(struct device *dev);
114 int msm_dsi_runtime_resume(struct device *dev);
115 int dsi_link_clk_set_rate_6g(struct msm_dsi_host *msm_host);
116 int dsi_link_clk_set_rate_v2(struct msm_dsi_host *msm_host);
117 int dsi_link_clk_enable_6g(struct msm_dsi_host *msm_host);
118 int dsi_link_clk_enable_v2(struct msm_dsi_host *msm_host);
119 void dsi_link_clk_disable_6g(struct msm_dsi_host *msm_host);
120 void dsi_link_clk_disable_v2(struct msm_dsi_host *msm_host);
121 unsigned long dsi_byte_clk_get_rate(struct mipi_dsi_host *host, bool is_bonded_dsi,
122 const struct drm_display_mode *mode);
123 int dsi_tx_buf_alloc_6g(struct msm_dsi_host *msm_host, int size);
124 int dsi_tx_buf_alloc_v2(struct msm_dsi_host *msm_host, int size);
125 void *dsi_tx_buf_get_6g(struct msm_dsi_host *msm_host);
126 void *dsi_tx_buf_get_v2(struct msm_dsi_host *msm_host);
127 void dsi_tx_buf_put_6g(struct msm_dsi_host *msm_host);
128 int dsi_dma_base_get_6g(struct msm_dsi_host *msm_host, uint64_t *iova);
129 int dsi_dma_base_get_v2(struct msm_dsi_host *msm_host, uint64_t *iova);
130 int dsi_clk_init_v2(struct msm_dsi_host *msm_host);
131 int dsi_clk_init_6g_v2(struct msm_dsi_host *msm_host);
132 int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_bonded_dsi);
133 int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_bonded_dsi);
134 void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host);
135 void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host);
136 struct drm_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host);
137
138 /* dsi phy */
139 struct msm_dsi_phy;
140 struct msm_dsi_phy_shared_timings {
141 u32 clk_post;
142 u32 clk_pre;
143 bool clk_pre_inc_by_2;
144 bool byte_intf_clk_div_2;
145 };
146
147 struct msm_dsi_phy_clk_request {
148 unsigned long bitclk_rate;
149 unsigned long escclk_rate;
150 };
151
152 void msm_dsi_phy_driver_register(void);
153 void msm_dsi_phy_driver_unregister(void);
154 int msm_dsi_phy_enable(struct msm_dsi_phy *phy,
155 struct msm_dsi_phy_clk_request *clk_req,
156 struct msm_dsi_phy_shared_timings *shared_timings);
157 void msm_dsi_phy_disable(struct msm_dsi_phy *phy);
158 void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy,
159 enum msm_dsi_phy_usecase uc);
160 void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy);
161 int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy);
162 void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy);
163 bool msm_dsi_phy_set_continuous_clock(struct msm_dsi_phy *phy, bool enable);
164
165 #endif /* __DSI_CONNECTOR_H__ */
166
167
