1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2013 Red Hat
4  * Author: Rob Clark <robdclark@gmail.com>
5  */
6 
7 #ifndef __MDP4_KMS_H__
8 #define __MDP4_KMS_H__
9 
10 #include <drm/drm_panel.h>
11 
12 #include "msm_drv.h"
13 #include "msm_kms.h"
14 #include "disp/mdp_kms.h"
15 #include "mdp4.xml.h"
16 
17 struct device_node;
18 
19 struct mdp4_kms {
20 	struct mdp_kms base;
21 
22 	struct drm_device *dev;
23 
24 	int rev;
25 
26 	void __iomem *mmio;
27 
28 	struct regulator *vdd;
29 
30 	struct clk *clk;
31 	struct clk *pclk;
32 	struct clk *lut_clk;
33 	struct clk *axi_clk;
34 
35 	struct mdp_irq error_handler;
36 
37 	bool rpm_enabled;
38 
39 	/* empty/blank cursor bo to use when cursor is "disabled" */
40 	struct drm_gem_object *blank_cursor_bo;
41 	uint64_t blank_cursor_iova;
42 };
43 #define to_mdp4_kms(x) container_of(x, struct mdp4_kms, base)
44 
45 static inline void mdp4_write(struct mdp4_kms *mdp4_kms, u32 reg, u32 data)
46 {
47 	msm_writel(data, mdp4_kms->mmio + reg);
48 }
49 
50 static inline u32 mdp4_read(struct mdp4_kms *mdp4_kms, u32 reg)
51 {
52 	return msm_readl(mdp4_kms->mmio + reg);
53 }
54 
55 static inline uint32_t pipe2flush(enum mdp4_pipe pipe)
56 {
57 	switch (pipe) {
58 	case VG1:      return MDP4_OVERLAY_FLUSH_VG1;
59 	case VG2:      return MDP4_OVERLAY_FLUSH_VG2;
60 	case RGB1:     return MDP4_OVERLAY_FLUSH_RGB1;
61 	case RGB2:     return MDP4_OVERLAY_FLUSH_RGB2;
62 	default:       return 0;
63 	}
64 }
65 
66 static inline uint32_t ovlp2flush(int ovlp)
67 {
68 	switch (ovlp) {
69 	case 0:        return MDP4_OVERLAY_FLUSH_OVLP0;
70 	case 1:        return MDP4_OVERLAY_FLUSH_OVLP1;
71 	default:       return 0;
72 	}
73 }
74 
75 static inline uint32_t dma2irq(enum mdp4_dma dma)
76 {
77 	switch (dma) {
78 	case DMA_P:    return MDP4_IRQ_DMA_P_DONE;
79 	case DMA_S:    return MDP4_IRQ_DMA_S_DONE;
80 	case DMA_E:    return MDP4_IRQ_DMA_E_DONE;
81 	default:       return 0;
82 	}
83 }
84 
85 static inline uint32_t dma2err(enum mdp4_dma dma)
86 {
87 	switch (dma) {
88 	case DMA_P:    return MDP4_IRQ_PRIMARY_INTF_UDERRUN;
89 	case DMA_S:    return 0;  // ???
90 	case DMA_E:    return MDP4_IRQ_EXTERNAL_INTF_UDERRUN;
91 	default:       return 0;
92 	}
93 }
94 
95 static inline uint32_t mixercfg(uint32_t mixer_cfg, int mixer,
96 		enum mdp4_pipe pipe, enum mdp_mixer_stage_id stage)
97 {
98 	switch (pipe) {
99 	case VG1:
100 		mixer_cfg &= ~(MDP4_LAYERMIXER_IN_CFG_PIPE0__MASK |
101 				MDP4_LAYERMIXER_IN_CFG_PIPE0_MIXER1);
102 		mixer_cfg |= MDP4_LAYERMIXER_IN_CFG_PIPE0(stage) |
103 			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE0_MIXER1);
104 		break;
105 	case VG2:
106 		mixer_cfg &= ~(MDP4_LAYERMIXER_IN_CFG_PIPE1__MASK |
107 				MDP4_LAYERMIXER_IN_CFG_PIPE1_MIXER1);
108 		mixer_cfg |= MDP4_LAYERMIXER_IN_CFG_PIPE1(stage) |
109 			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE1_MIXER1);
110 		break;
111 	case RGB1:
112 		mixer_cfg &= ~(MDP4_LAYERMIXER_IN_CFG_PIPE2__MASK |
113 				MDP4_LAYERMIXER_IN_CFG_PIPE2_MIXER1);
114 		mixer_cfg |= MDP4_LAYERMIXER_IN_CFG_PIPE2(stage) |
115 			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE2_MIXER1);
116 		break;
117 	case RGB2:
118 		mixer_cfg &= ~(MDP4_LAYERMIXER_IN_CFG_PIPE3__MASK |
119 				MDP4_LAYERMIXER_IN_CFG_PIPE3_MIXER1);
120 		mixer_cfg |= MDP4_LAYERMIXER_IN_CFG_PIPE3(stage) |
121 			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE3_MIXER1);
122 		break;
123 	case RGB3:
124 		mixer_cfg &= ~(MDP4_LAYERMIXER_IN_CFG_PIPE4__MASK |
125 				MDP4_LAYERMIXER_IN_CFG_PIPE4_MIXER1);
126 		mixer_cfg |= MDP4_LAYERMIXER_IN_CFG_PIPE4(stage) |
127 			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE4_MIXER1);
128 		break;
129 	case VG3:
130 		mixer_cfg &= ~(MDP4_LAYERMIXER_IN_CFG_PIPE5__MASK |
131 				MDP4_LAYERMIXER_IN_CFG_PIPE5_MIXER1);
132 		mixer_cfg |= MDP4_LAYERMIXER_IN_CFG_PIPE5(stage) |
133 			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE5_MIXER1);
134 		break;
135 	case VG4:
136 		mixer_cfg &= ~(MDP4_LAYERMIXER_IN_CFG_PIPE6__MASK |
137 				MDP4_LAYERMIXER_IN_CFG_PIPE6_MIXER1);
138 		mixer_cfg |= MDP4_LAYERMIXER_IN_CFG_PIPE6(stage) |
139 			COND(mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE6_MIXER1);
140 		break;
141 	default:
142 		WARN(1, "invalid pipe");
143 		break;
144 	}
145 
146 	return mixer_cfg;
147 }
148 
149 int mdp4_disable(struct mdp4_kms *mdp4_kms);
150 int mdp4_enable(struct mdp4_kms *mdp4_kms);
151 
152 void mdp4_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask,
153 		uint32_t old_irqmask);
154 void mdp4_irq_preinstall(struct msm_kms *kms);
155 int mdp4_irq_postinstall(struct msm_kms *kms);
156 void mdp4_irq_uninstall(struct msm_kms *kms);
157 irqreturn_t mdp4_irq(struct msm_kms *kms);
158 int mdp4_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
159 void mdp4_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
160 
161 static inline uint32_t mdp4_pipe_caps(enum mdp4_pipe pipe)
162 {
163 	switch (pipe) {
164 	case VG1:
165 	case VG2:
166 	case VG3:
167 	case VG4:
168 		return MDP_PIPE_CAP_HFLIP | MDP_PIPE_CAP_VFLIP |
169 				MDP_PIPE_CAP_SCALE | MDP_PIPE_CAP_CSC;
170 	case RGB1:
171 	case RGB2:
172 	case RGB3:
173 		return MDP_PIPE_CAP_SCALE;
174 	default:
175 		return 0;
176 	}
177 }
178 
179 enum mdp4_pipe mdp4_plane_pipe(struct drm_plane *plane);
180 struct drm_plane *mdp4_plane_init(struct drm_device *dev,
181 		enum mdp4_pipe pipe_id, bool private_plane);
182 
183 uint32_t mdp4_crtc_vblank(struct drm_crtc *crtc);
184 void mdp4_crtc_set_config(struct drm_crtc *crtc, uint32_t config);
185 void mdp4_crtc_set_intf(struct drm_crtc *crtc, enum mdp4_intf intf, int mixer);
186 void mdp4_crtc_wait_for_commit_done(struct drm_crtc *crtc);
187 struct drm_crtc *mdp4_crtc_init(struct drm_device *dev,
188 		struct drm_plane *plane, int id, int ovlp_id,
189 		enum mdp4_dma dma_id);
190 
191 long mdp4_dtv_round_pixclk(struct drm_encoder *encoder, unsigned long rate);
192 struct drm_encoder *mdp4_dtv_encoder_init(struct drm_device *dev);
193 
194 long mdp4_lcdc_round_pixclk(struct drm_encoder *encoder, unsigned long rate);
195 struct drm_encoder *mdp4_lcdc_encoder_init(struct drm_device *dev,
196 		struct device_node *panel_node);
197 
198 struct drm_connector *mdp4_lvds_connector_init(struct drm_device *dev,
199 		struct device_node *panel_node, struct drm_encoder *encoder);
200 
201 #ifdef CONFIG_DRM_MSM_DSI
202 struct drm_encoder *mdp4_dsi_encoder_init(struct drm_device *dev);
203 #else
204 static inline struct drm_encoder *mdp4_dsi_encoder_init(struct drm_device *dev)
205 {
206 	return ERR_PTR(-ENODEV);
207 }
208 #endif
209 
210 #ifdef CONFIG_COMMON_CLK
211 struct clk *mpd4_lvds_pll_init(struct drm_device *dev);
212 #else
213 static inline struct clk *mpd4_lvds_pll_init(struct drm_device *dev)
214 {
215 	return ERR_PTR(-ENODEV);
216 }
217 #endif
218 
219 #endif /* __MDP4_KMS_H__ */
220