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 "msm_drv.h" 15 #include "msm_kms.h" 16 #include "mdp_common.xml.h" 17 18 struct mdp_kms; 19 20 struct mdp_kms_funcs { 21 struct msm_kms_funcs base; 22 void (*set_irqmask)(struct mdp_kms *mdp_kms, uint32_t irqmask, 23 uint32_t old_irqmask); 24 }; 25 26 struct mdp_kms { 27 struct msm_kms base; 28 29 const struct mdp_kms_funcs *funcs; 30 31 /* irq handling: */ 32 bool in_irq; 33 struct list_head irq_list; /* list of mdp4_irq */ 34 uint32_t vblank_mask; /* irq bits set for userspace vblank */ 35 uint32_t cur_irq_mask; /* current irq mask */ 36 }; 37 #define to_mdp_kms(x) container_of(x, struct mdp_kms, base) 38 39 static inline int mdp_kms_init(struct mdp_kms *mdp_kms, 40 const struct mdp_kms_funcs *funcs) 41 { 42 mdp_kms->funcs = funcs; 43 INIT_LIST_HEAD(&mdp_kms->irq_list); 44 return msm_kms_init(&mdp_kms->base, &funcs->base); 45 } 46 47 static inline void mdp_kms_destroy(struct mdp_kms *mdp_kms) 48 { 49 msm_kms_destroy(&mdp_kms->base); 50 } 51 52 /* 53 * irq helpers: 54 */ 55 56 /* For transiently registering for different MDP irqs that various parts 57 * of the KMS code need during setup/configuration. These are not 58 * necessarily the same as what drm_vblank_get/put() are requesting, and 59 * the hysteresis in drm_vblank_put() is not necessarily desirable for 60 * internal housekeeping related irq usage. 61 */ 62 struct mdp_irq { 63 struct list_head node; 64 uint32_t irqmask; 65 bool registered; 66 void (*irq)(struct mdp_irq *irq, uint32_t irqstatus); 67 }; 68 69 void mdp_dispatch_irqs(struct mdp_kms *mdp_kms, uint32_t status); 70 void mdp_update_vblank_mask(struct mdp_kms *mdp_kms, uint32_t mask, bool enable); 71 void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask); 72 void mdp_irq_register(struct mdp_kms *mdp_kms, struct mdp_irq *irq); 73 void mdp_irq_unregister(struct mdp_kms *mdp_kms, struct mdp_irq *irq); 74 void mdp_irq_update(struct mdp_kms *mdp_kms); 75 76 /* 77 * pixel format helpers: 78 */ 79 80 struct mdp_format { 81 struct msm_format base; 82 enum mdp_bpc bpc_r, bpc_g, bpc_b; 83 enum mdp_bpc_alpha bpc_a; 84 uint8_t unpack[4]; 85 bool alpha_enable, unpack_tight; 86 uint8_t cpp, unpack_count; 87 enum mdp_fetch_type fetch_type; 88 enum mdp_chroma_samp_type chroma_sample; 89 bool is_yuv; 90 }; 91 #define to_mdp_format(x) container_of(x, struct mdp_format, base) 92 #define MDP_FORMAT_IS_YUV(mdp_format) ((mdp_format)->is_yuv) 93 94 uint32_t mdp_get_formats(uint32_t *formats, uint32_t max_formats, bool rgb_only); 95 const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format, uint64_t modifier); 96 97 /* MDP capabilities */ 98 #define MDP_CAP_SMP BIT(0) /* Shared Memory Pool */ 99 #define MDP_CAP_DSC BIT(1) /* VESA Display Stream Compression */ 100 #define MDP_CAP_CDM BIT(2) /* Chroma Down Module (HDMI 2.0 YUV) */ 101 #define MDP_CAP_SRC_SPLIT BIT(3) /* Source Split of SSPPs */ 102 103 /* MDP pipe capabilities */ 104 #define MDP_PIPE_CAP_HFLIP BIT(0) 105 #define MDP_PIPE_CAP_VFLIP BIT(1) 106 #define MDP_PIPE_CAP_SCALE BIT(2) 107 #define MDP_PIPE_CAP_CSC BIT(3) 108 #define MDP_PIPE_CAP_DECIMATION BIT(4) 109 #define MDP_PIPE_CAP_SW_PIX_EXT BIT(5) 110 #define MDP_PIPE_CAP_CURSOR BIT(6) 111 112 /* MDP layer mixer caps */ 113 #define MDP_LM_CAP_DISPLAY BIT(0) 114 #define MDP_LM_CAP_WB BIT(1) 115 #define MDP_LM_CAP_PAIR BIT(2) 116 117 static inline bool pipe_supports_yuv(uint32_t pipe_caps) 118 { 119 return (pipe_caps & MDP_PIPE_CAP_SCALE) && 120 (pipe_caps & MDP_PIPE_CAP_CSC); 121 } 122 123 enum csc_type { 124 CSC_RGB2RGB = 0, 125 CSC_YUV2RGB, 126 CSC_RGB2YUV, 127 CSC_YUV2YUV, 128 CSC_MAX 129 }; 130 131 struct csc_cfg { 132 enum csc_type type; 133 uint32_t matrix[9]; 134 uint32_t pre_bias[3]; 135 uint32_t post_bias[3]; 136 uint32_t pre_clamp[6]; 137 uint32_t post_clamp[6]; 138 }; 139 140 struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type); 141 142 #endif /* __MDP_KMS_H__ */ 143