1 /* 2 * Copyright (C) 2013 Red Hat 3 * Author: Rob Clark <robdclark@gmail.com> 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 as published by 7 * the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #ifndef __MDP_KMS_H__ 19 #define __MDP_KMS_H__ 20 21 #include <linux/clk.h> 22 #include <linux/platform_device.h> 23 #include <linux/regulator/consumer.h> 24 25 #include "msm_drv.h" 26 #include "msm_kms.h" 27 #include "mdp_common.xml.h" 28 29 struct mdp_kms; 30 31 struct mdp_kms_funcs { 32 struct msm_kms_funcs base; 33 void (*set_irqmask)(struct mdp_kms *mdp_kms, uint32_t irqmask, 34 uint32_t old_irqmask); 35 }; 36 37 struct mdp_kms { 38 struct msm_kms base; 39 40 const struct mdp_kms_funcs *funcs; 41 42 /* irq handling: */ 43 bool in_irq; 44 struct list_head irq_list; /* list of mdp4_irq */ 45 uint32_t vblank_mask; /* irq bits set for userspace vblank */ 46 uint32_t cur_irq_mask; /* current irq mask */ 47 }; 48 #define to_mdp_kms(x) container_of(x, struct mdp_kms, base) 49 50 static inline void mdp_kms_init(struct mdp_kms *mdp_kms, 51 const struct mdp_kms_funcs *funcs) 52 { 53 mdp_kms->funcs = funcs; 54 INIT_LIST_HEAD(&mdp_kms->irq_list); 55 msm_kms_init(&mdp_kms->base, &funcs->base); 56 } 57 58 /* 59 * irq helpers: 60 */ 61 62 /* For transiently registering for different MDP irqs that various parts 63 * of the KMS code need during setup/configuration. These are not 64 * necessarily the same as what drm_vblank_get/put() are requesting, and 65 * the hysteresis in drm_vblank_put() is not necessarily desirable for 66 * internal housekeeping related irq usage. 67 */ 68 struct mdp_irq { 69 struct list_head node; 70 uint32_t irqmask; 71 bool registered; 72 void (*irq)(struct mdp_irq *irq, uint32_t irqstatus); 73 }; 74 75 void mdp_dispatch_irqs(struct mdp_kms *mdp_kms, uint32_t status); 76 void mdp_update_vblank_mask(struct mdp_kms *mdp_kms, uint32_t mask, bool enable); 77 void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask); 78 void mdp_irq_register(struct mdp_kms *mdp_kms, struct mdp_irq *irq); 79 void mdp_irq_unregister(struct mdp_kms *mdp_kms, struct mdp_irq *irq); 80 void mdp_irq_update(struct mdp_kms *mdp_kms); 81 82 /* 83 * pixel format helpers: 84 */ 85 86 struct mdp_format { 87 struct msm_format base; 88 enum mdp_bpc bpc_r, bpc_g, bpc_b; 89 enum mdp_bpc_alpha bpc_a; 90 uint8_t unpack[4]; 91 bool alpha_enable, unpack_tight; 92 uint8_t cpp, unpack_count; 93 enum mdp_fetch_type fetch_type; 94 enum mdp_chroma_samp_type chroma_sample; 95 bool is_yuv; 96 }; 97 #define to_mdp_format(x) container_of(x, struct mdp_format, base) 98 #define MDP_FORMAT_IS_YUV(mdp_format) ((mdp_format)->is_yuv) 99 100 uint32_t mdp_get_formats(uint32_t *formats, uint32_t max_formats, bool rgb_only); 101 const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format, uint64_t modifier); 102 103 /* MDP capabilities */ 104 #define MDP_CAP_SMP BIT(0) /* Shared Memory Pool */ 105 #define MDP_CAP_DSC BIT(1) /* VESA Display Stream Compression */ 106 #define MDP_CAP_CDM BIT(2) /* Chroma Down Module (HDMI 2.0 YUV) */ 107 #define MDP_CAP_SRC_SPLIT BIT(3) /* Source Split of SSPPs */ 108 109 /* MDP pipe capabilities */ 110 #define MDP_PIPE_CAP_HFLIP BIT(0) 111 #define MDP_PIPE_CAP_VFLIP BIT(1) 112 #define MDP_PIPE_CAP_SCALE BIT(2) 113 #define MDP_PIPE_CAP_CSC BIT(3) 114 #define MDP_PIPE_CAP_DECIMATION BIT(4) 115 #define MDP_PIPE_CAP_SW_PIX_EXT BIT(5) 116 #define MDP_PIPE_CAP_CURSOR BIT(6) 117 118 /* MDP layer mixer caps */ 119 #define MDP_LM_CAP_DISPLAY BIT(0) 120 #define MDP_LM_CAP_WB BIT(1) 121 #define MDP_LM_CAP_PAIR BIT(2) 122 123 static inline bool pipe_supports_yuv(uint32_t pipe_caps) 124 { 125 return (pipe_caps & MDP_PIPE_CAP_SCALE) && 126 (pipe_caps & MDP_PIPE_CAP_CSC); 127 } 128 129 enum csc_type { 130 CSC_RGB2RGB = 0, 131 CSC_YUV2RGB, 132 CSC_RGB2YUV, 133 CSC_YUV2YUV, 134 CSC_MAX 135 }; 136 137 struct csc_cfg { 138 enum csc_type type; 139 uint32_t matrix[9]; 140 uint32_t pre_bias[3]; 141 uint32_t post_bias[3]; 142 uint32_t pre_clamp[6]; 143 uint32_t post_clamp[6]; 144 }; 145 146 struct csc_cfg *mdp_get_default_csc_cfg(enum csc_type); 147 148 #endif /* __MDP_KMS_H__ */ 149