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 __MDP_KMS_H__ 8 #define __MDP_KMS_H__ 9 10 #include <linux/clk.h> 11 #include <linux/platform_device.h> 12 #include <linux/regulator/consumer.h> 13 14 #include "mdp_format.h" 15 #include "msm_drv.h" 16 #include "msm_kms.h" 17 #include "mdp_common.xml.h" 18 19 struct mdp_kms; 20 21 struct mdp_kms_funcs { 22 struct msm_kms_funcs base; 23 void (*set_irqmask)(struct mdp_kms *mdp_kms, uint32_t irqmask, 24 uint32_t old_irqmask); 25 }; 26 27 struct mdp_kms { 28 struct msm_kms base; 29 30 const struct mdp_kms_funcs *funcs; 31 32 /* irq handling: */ 33 bool in_irq; 34 struct list_head irq_list; /* list of mdp4_irq */ 35 uint32_t vblank_mask; /* irq bits set for userspace vblank */ 36 uint32_t cur_irq_mask; /* current irq mask */ 37 }; 38 #define to_mdp_kms(x) container_of(x, struct mdp_kms, base) 39 40 static inline int mdp_kms_init(struct mdp_kms *mdp_kms, 41 const struct mdp_kms_funcs *funcs) 42 { 43 mdp_kms->funcs = funcs; 44 INIT_LIST_HEAD(&mdp_kms->irq_list); 45 return msm_kms_init(&mdp_kms->base, &funcs->base); 46 } 47 48 static inline void mdp_kms_destroy(struct mdp_kms *mdp_kms) 49 { 50 msm_kms_destroy(&mdp_kms->base); 51 } 52 53 /* 54 * irq helpers: 55 */ 56 57 /* For transiently registering for different MDP irqs that various parts 58 * of the KMS code need during setup/configuration. These are not 59 * necessarily the same as what drm_vblank_get/put() are requesting, and 60 * the hysteresis in drm_vblank_put() is not necessarily desirable for 61 * internal housekeeping related irq usage. 62 */ 63 struct mdp_irq { 64 struct list_head node; 65 uint32_t irqmask; 66 bool registered; 67 void (*irq)(struct mdp_irq *irq, uint32_t irqstatus); 68 }; 69 70 void mdp_dispatch_irqs(struct mdp_kms *mdp_kms, uint32_t status); 71 void mdp_update_vblank_mask(struct mdp_kms *mdp_kms, uint32_t mask, bool enable); 72 void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask); 73 void mdp_irq_register(struct mdp_kms *mdp_kms, struct mdp_irq *irq); 74 void mdp_irq_unregister(struct mdp_kms *mdp_kms, struct mdp_irq *irq); 75 void mdp_irq_update(struct mdp_kms *mdp_kms); 76 77 /* 78 * pixel format helpers: 79 */ 80 81 /* MDP capabilities */ 82 #define MDP_CAP_SMP BIT(0) /* Shared Memory Pool */ 83 #define MDP_CAP_DSC BIT(1) /* VESA Display Stream Compression */ 84 #define MDP_CAP_CDM BIT(2) /* Chroma Down Module (HDMI 2.0 YUV) */ 85 #define MDP_CAP_SRC_SPLIT BIT(3) /* Source Split of SSPPs */ 86 87 /* MDP pipe capabilities */ 88 #define MDP_PIPE_CAP_HFLIP BIT(0) 89 #define MDP_PIPE_CAP_VFLIP BIT(1) 90 #define MDP_PIPE_CAP_SCALE BIT(2) 91 #define MDP_PIPE_CAP_CSC BIT(3) 92 #define MDP_PIPE_CAP_DECIMATION BIT(4) 93 #define MDP_PIPE_CAP_SW_PIX_EXT BIT(5) 94 #define MDP_PIPE_CAP_CURSOR BIT(6) 95 96 /* MDP layer mixer caps */ 97 #define MDP_LM_CAP_DISPLAY BIT(0) 98 #define MDP_LM_CAP_WB BIT(1) 99 #define MDP_LM_CAP_PAIR BIT(2) 100 101 static inline bool pipe_supports_yuv(uint32_t pipe_caps) 102 { 103 return (pipe_caps & MDP_PIPE_CAP_SCALE) && 104 (pipe_caps & MDP_PIPE_CAP_CSC); 105 } 106 107 enum csc_type { 108 CSC_RGB2RGB = 0, 109 CSC_YUV2RGB, 110 CSC_RGB2YUV, 111 CSC_YUV2YUV, 112 CSC_MAX 113 }; 114 115 struct csc_cfg { 116 enum csc_type type; 117 uint32_t matrix[9]; 118 uint32_t pre_bias[3]; 119 uint32_t post_bias[3]; 120 uint32_t pre_clamp[6]; 121 uint32_t post_clamp[6]; 122 }; 123 124 struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type); 125 126 #endif /* __MDP_KMS_H__ */ 127