1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Support for Intel Camera Imaging ISP subsystem. 4 * Copyright (c) 2015, Intel Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 */ 15 16 #include "ia_css_types.h" 17 #include "sh_css_defs.h" 18 #include "ia_css_debug.h" 19 #include "isp.h" 20 21 #include "ia_css_ob.host.h" 22 23 const struct ia_css_ob_config default_ob_config = { 24 IA_CSS_OB_MODE_NONE, 25 0, 26 0, 27 0, 28 0, 29 0, 30 0 31 }; 32 33 /* TODO: include ob.isp.h to get isp knowledge and 34 add assert on platform restrictions */ 35 36 void 37 ia_css_ob_configure( 38 struct sh_css_isp_ob_stream_config *config, 39 unsigned int isp_pipe_version, 40 unsigned int raw_bit_depth) 41 { 42 config->isp_pipe_version = isp_pipe_version; 43 config->raw_bit_depth = raw_bit_depth; 44 } 45 46 void 47 ia_css_ob_encode( 48 struct sh_css_isp_ob_params *to, 49 const struct ia_css_ob_config *from, 50 const struct sh_css_isp_ob_stream_config *config, 51 unsigned int size) 52 { 53 unsigned int ob_bit_depth 54 = config->isp_pipe_version == 2 ? SH_CSS_BAYER_BITS : config->raw_bit_depth; 55 unsigned int scale = 16 - ob_bit_depth; 56 57 (void)size; 58 switch (from->mode) { 59 case IA_CSS_OB_MODE_FIXED: 60 to->blacklevel_gr = from->level_gr >> scale; 61 to->blacklevel_r = from->level_r >> scale; 62 to->blacklevel_b = from->level_b >> scale; 63 to->blacklevel_gb = from->level_gb >> scale; 64 to->area_start_bq = 0; 65 to->area_length_bq = 0; 66 to->area_length_bq_inverse = 0; 67 break; 68 case IA_CSS_OB_MODE_RASTER: 69 to->blacklevel_gr = 0; 70 to->blacklevel_r = 0; 71 to->blacklevel_b = 0; 72 to->blacklevel_gb = 0; 73 to->area_start_bq = from->start_position; 74 to->area_length_bq = 75 (from->end_position - from->start_position) + 1; 76 to->area_length_bq_inverse = AREA_LENGTH_UNIT / to->area_length_bq; 77 break; 78 default: 79 to->blacklevel_gr = 0; 80 to->blacklevel_r = 0; 81 to->blacklevel_b = 0; 82 to->blacklevel_gb = 0; 83 to->area_start_bq = 0; 84 to->area_length_bq = 0; 85 to->area_length_bq_inverse = 0; 86 break; 87 } 88 } 89 90 void 91 ia_css_ob_vmem_encode( 92 struct sh_css_isp_ob_vmem_params *to, 93 const struct ia_css_ob_config *from, 94 const struct sh_css_isp_ob_stream_config *config, 95 unsigned int size) 96 { 97 struct sh_css_isp_ob_params tmp; 98 struct sh_css_isp_ob_params *ob = &tmp; 99 100 (void)size; 101 ia_css_ob_encode(&tmp, from, config, sizeof(tmp)); 102 103 { 104 unsigned int i; 105 unsigned int sp_obarea_start_bq = ob->area_start_bq; 106 unsigned int sp_obarea_length_bq = ob->area_length_bq; 107 unsigned int low = sp_obarea_start_bq; 108 unsigned int high = low + sp_obarea_length_bq; 109 u16 all_ones = ~0; 110 111 for (i = 0; i < OBAREA_MASK_SIZE; i++) { 112 if (i >= low && i < high) 113 to->vmask[i / ISP_VEC_NELEMS][i % ISP_VEC_NELEMS] = all_ones; 114 else 115 to->vmask[i / ISP_VEC_NELEMS][i % ISP_VEC_NELEMS] = 0; 116 } 117 } 118 } 119 120 void 121 ia_css_ob_dump( 122 const struct sh_css_isp_ob_params *ob, 123 unsigned int level) 124 { 125 if (!ob) return; 126 ia_css_debug_dtrace(level, "Optical Black:\n"); 127 ia_css_debug_dtrace(level, "\t%-32s = %d\n", 128 "ob_blacklevel_gr", ob->blacklevel_gr); 129 ia_css_debug_dtrace(level, "\t%-32s = %d\n", 130 "ob_blacklevel_r", ob->blacklevel_r); 131 ia_css_debug_dtrace(level, "\t%-32s = %d\n", 132 "ob_blacklevel_b", ob->blacklevel_b); 133 ia_css_debug_dtrace(level, "\t%-32s = %d\n", 134 "ob_blacklevel_gb", ob->blacklevel_gb); 135 ia_css_debug_dtrace(level, "\t%-32s = %d\n", 136 "obarea_start_bq", ob->area_start_bq); 137 ia_css_debug_dtrace(level, "\t%-32s = %d\n", 138 "obarea_length_bq", ob->area_length_bq); 139 ia_css_debug_dtrace(level, "\t%-32s = %d\n", 140 "obarea_length_bq_inverse", 141 ob->area_length_bq_inverse); 142 } 143 144 void 145 ia_css_ob_debug_dtrace( 146 const struct ia_css_ob_config *config, 147 unsigned int level) 148 { 149 ia_css_debug_dtrace(level, 150 "config.mode=%d, config.level_gr=%d, config.level_r=%d, config.level_b=%d, config.level_gb=%d, config.start_position=%d, config.end_position=%d\n", 151 config->mode, 152 config->level_gr, config->level_r, 153 config->level_b, config->level_gb, 154 config->start_position, config->end_position); 155 } 156