1 /* $NetBSD: dce_aux.h,v 1.2 2021/12/18 23:45:02 riastradh Exp $ */ 2 3 /* 4 * Copyright 2012-15 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: AMD 25 * 26 */ 27 28 #ifndef __DAL_AUX_ENGINE_DCE110_H__ 29 #define __DAL_AUX_ENGINE_DCE110_H__ 30 31 #include "i2caux_interface.h" 32 #include "inc/hw/aux_engine.h" 33 34 35 #define AUX_COMMON_REG_LIST0(id)\ 36 SRI(AUX_CONTROL, DP_AUX, id), \ 37 SRI(AUX_ARB_CONTROL, DP_AUX, id), \ 38 SRI(AUX_SW_DATA, DP_AUX, id), \ 39 SRI(AUX_SW_CONTROL, DP_AUX, id), \ 40 SRI(AUX_INTERRUPT_CONTROL, DP_AUX, id), \ 41 SRI(AUX_DPHY_RX_CONTROL1, DP_AUX, id), \ 42 SRI(AUX_SW_STATUS, DP_AUX, id) 43 44 #define AUX_COMMON_REG_LIST(id)\ 45 SRI(AUX_CONTROL, DP_AUX, id), \ 46 SRI(AUX_ARB_CONTROL, DP_AUX, id), \ 47 SRI(AUX_SW_DATA, DP_AUX, id), \ 48 SRI(AUX_SW_CONTROL, DP_AUX, id), \ 49 SRI(AUX_INTERRUPT_CONTROL, DP_AUX, id), \ 50 SRI(AUX_SW_STATUS, DP_AUX, id), \ 51 SR(AUXN_IMPCAL), \ 52 SR(AUXP_IMPCAL) 53 54 struct dce110_aux_registers { 55 uint32_t AUX_CONTROL; 56 uint32_t AUX_ARB_CONTROL; 57 uint32_t AUX_SW_DATA; 58 uint32_t AUX_SW_CONTROL; 59 uint32_t AUX_INTERRUPT_CONTROL; 60 uint32_t AUX_DPHY_RX_CONTROL1; 61 uint32_t AUX_SW_STATUS; 62 uint32_t AUXN_IMPCAL; 63 uint32_t AUXP_IMPCAL; 64 65 uint32_t AUX_RESET_MASK; 66 }; 67 68 #define DCE_AUX_REG_FIELD_LIST(type)\ 69 type AUX_EN;\ 70 type AUX_RESET;\ 71 type AUX_RESET_DONE;\ 72 type AUX_REG_RW_CNTL_STATUS;\ 73 type AUX_SW_USE_AUX_REG_REQ;\ 74 type AUX_SW_DONE_USING_AUX_REG;\ 75 type AUX_SW_AUTOINCREMENT_DISABLE;\ 76 type AUX_SW_DATA_RW;\ 77 type AUX_SW_INDEX;\ 78 type AUX_SW_GO;\ 79 type AUX_SW_DATA;\ 80 type AUX_SW_REPLY_BYTE_COUNT;\ 81 type AUX_SW_DONE;\ 82 type AUX_SW_DONE_ACK;\ 83 type AUXN_IMPCAL_ENABLE;\ 84 type AUXP_IMPCAL_ENABLE;\ 85 type AUXN_IMPCAL_OVERRIDE_ENABLE;\ 86 type AUXP_IMPCAL_OVERRIDE_ENABLE;\ 87 type AUX_RX_TIMEOUT_LEN;\ 88 type AUX_RX_TIMEOUT_LEN_MUL;\ 89 type AUXN_CALOUT_ERROR_AK;\ 90 type AUXP_CALOUT_ERROR_AK;\ 91 type AUX_SW_START_DELAY;\ 92 type AUX_SW_WR_BYTES 93 94 #define DCE10_AUX_MASK_SH_LIST(mask_sh)\ 95 AUX_SF(AUX_CONTROL, AUX_EN, mask_sh),\ 96 AUX_SF(AUX_ARB_CONTROL, AUX_REG_RW_CNTL_STATUS, mask_sh),\ 97 AUX_SF(AUX_ARB_CONTROL, AUX_SW_USE_AUX_REG_REQ, mask_sh),\ 98 AUX_SF(AUX_ARB_CONTROL, AUX_SW_DONE_USING_AUX_REG, mask_sh),\ 99 AUX_SF(AUX_SW_CONTROL, AUX_SW_START_DELAY, mask_sh),\ 100 AUX_SF(AUX_SW_CONTROL, AUX_SW_WR_BYTES, mask_sh),\ 101 AUX_SF(AUX_SW_CONTROL, AUX_SW_GO, mask_sh),\ 102 AUX_SF(AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ 103 AUX_SF(AUX_SW_DATA, AUX_SW_DATA_RW, mask_sh),\ 104 AUX_SF(AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ 105 AUX_SF(AUX_SW_DATA, AUX_SW_INDEX, mask_sh),\ 106 AUX_SF(AUX_SW_DATA, AUX_SW_DATA, mask_sh),\ 107 AUX_SF(AUX_SW_STATUS, AUX_SW_REPLY_BYTE_COUNT, mask_sh),\ 108 AUX_SF(AUX_SW_STATUS, AUX_SW_DONE, mask_sh),\ 109 AUX_SF(AUX_INTERRUPT_CONTROL, AUX_SW_DONE_ACK, mask_sh),\ 110 AUX_SF(AUXN_IMPCAL, AUXN_CALOUT_ERROR_AK, mask_sh),\ 111 AUX_SF(AUXP_IMPCAL, AUXP_CALOUT_ERROR_AK, mask_sh),\ 112 AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_ENABLE, mask_sh),\ 113 AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_ENABLE, mask_sh),\ 114 AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_OVERRIDE_ENABLE, mask_sh),\ 115 AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_OVERRIDE_ENABLE, mask_sh) 116 117 #define DCE_AUX_MASK_SH_LIST(mask_sh)\ 118 AUX_SF(AUX_CONTROL, AUX_EN, mask_sh),\ 119 AUX_SF(AUX_CONTROL, AUX_RESET, mask_sh),\ 120 AUX_SF(AUX_CONTROL, AUX_RESET_DONE, mask_sh),\ 121 AUX_SF(AUX_ARB_CONTROL, AUX_REG_RW_CNTL_STATUS, mask_sh),\ 122 AUX_SF(AUX_ARB_CONTROL, AUX_SW_USE_AUX_REG_REQ, mask_sh),\ 123 AUX_SF(AUX_ARB_CONTROL, AUX_SW_DONE_USING_AUX_REG, mask_sh),\ 124 AUX_SF(AUX_SW_CONTROL, AUX_SW_START_DELAY, mask_sh),\ 125 AUX_SF(AUX_SW_CONTROL, AUX_SW_WR_BYTES, mask_sh),\ 126 AUX_SF(AUX_SW_CONTROL, AUX_SW_GO, mask_sh),\ 127 AUX_SF(AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ 128 AUX_SF(AUX_SW_DATA, AUX_SW_DATA_RW, mask_sh),\ 129 AUX_SF(AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ 130 AUX_SF(AUX_SW_DATA, AUX_SW_INDEX, mask_sh),\ 131 AUX_SF(AUX_SW_DATA, AUX_SW_DATA, mask_sh),\ 132 AUX_SF(AUX_SW_STATUS, AUX_SW_REPLY_BYTE_COUNT, mask_sh),\ 133 AUX_SF(AUX_SW_STATUS, AUX_SW_DONE, mask_sh),\ 134 AUX_SF(AUX_INTERRUPT_CONTROL, AUX_SW_DONE_ACK, mask_sh),\ 135 AUX_SF(AUXN_IMPCAL, AUXN_CALOUT_ERROR_AK, mask_sh),\ 136 AUX_SF(AUXP_IMPCAL, AUXP_CALOUT_ERROR_AK, mask_sh),\ 137 AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_ENABLE, mask_sh),\ 138 AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_ENABLE, mask_sh),\ 139 AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_OVERRIDE_ENABLE, mask_sh),\ 140 AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_OVERRIDE_ENABLE, mask_sh) 141 142 #define DCE12_AUX_MASK_SH_LIST(mask_sh)\ 143 AUX_SF(DP_AUX0_AUX_CONTROL, AUX_EN, mask_sh),\ 144 AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET, mask_sh),\ 145 AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET_DONE, mask_sh),\ 146 AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_REG_RW_CNTL_STATUS, mask_sh),\ 147 AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_USE_AUX_REG_REQ, mask_sh),\ 148 AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_DONE_USING_AUX_REG, mask_sh),\ 149 AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_START_DELAY, mask_sh),\ 150 AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_WR_BYTES, mask_sh),\ 151 AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_GO, mask_sh),\ 152 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ 153 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA_RW, mask_sh),\ 154 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ 155 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_INDEX, mask_sh),\ 156 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA, mask_sh),\ 157 AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_REPLY_BYTE_COUNT, mask_sh),\ 158 AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_DONE, mask_sh),\ 159 AUX_SF(DP_AUX0_AUX_INTERRUPT_CONTROL, AUX_SW_DONE_ACK, mask_sh),\ 160 AUX_SF(AUXN_IMPCAL, AUXN_CALOUT_ERROR_AK, mask_sh),\ 161 AUX_SF(AUXP_IMPCAL, AUXP_CALOUT_ERROR_AK, mask_sh),\ 162 AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_ENABLE, mask_sh),\ 163 AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_ENABLE, mask_sh),\ 164 AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_OVERRIDE_ENABLE, mask_sh),\ 165 AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_OVERRIDE_ENABLE, mask_sh) 166 167 /* DCN10 MASK */ 168 #define DCN10_AUX_MASK_SH_LIST(mask_sh)\ 169 AUX_SF(DP_AUX0_AUX_CONTROL, AUX_EN, mask_sh),\ 170 AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET, mask_sh),\ 171 AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET_DONE, mask_sh),\ 172 AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_REG_RW_CNTL_STATUS, mask_sh),\ 173 AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_USE_AUX_REG_REQ, mask_sh),\ 174 AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_DONE_USING_AUX_REG, mask_sh),\ 175 AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_START_DELAY, mask_sh),\ 176 AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_WR_BYTES, mask_sh),\ 177 AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_GO, mask_sh),\ 178 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ 179 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA_RW, mask_sh),\ 180 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ 181 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_INDEX, mask_sh),\ 182 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA, mask_sh),\ 183 AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_REPLY_BYTE_COUNT, mask_sh),\ 184 AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_DONE, mask_sh),\ 185 AUX_SF(DP_AUX0_AUX_INTERRUPT_CONTROL, AUX_SW_DONE_ACK, mask_sh),\ 186 AUX_SF(AUXN_IMPCAL, AUXN_CALOUT_ERROR_AK, mask_sh),\ 187 AUX_SF(AUXP_IMPCAL, AUXP_CALOUT_ERROR_AK, mask_sh),\ 188 AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_ENABLE, mask_sh),\ 189 AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_ENABLE, mask_sh),\ 190 AUX_SF(AUXP_IMPCAL, AUXP_IMPCAL_OVERRIDE_ENABLE, mask_sh),\ 191 AUX_SF(AUXN_IMPCAL, AUXN_IMPCAL_OVERRIDE_ENABLE, mask_sh) 192 193 /* for all other DCN */ 194 #define DCN_AUX_MASK_SH_LIST(mask_sh)\ 195 AUX_SF(DP_AUX0_AUX_CONTROL, AUX_EN, mask_sh),\ 196 AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET, mask_sh),\ 197 AUX_SF(DP_AUX0_AUX_CONTROL, AUX_RESET_DONE, mask_sh),\ 198 AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_REG_RW_CNTL_STATUS, mask_sh),\ 199 AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_USE_AUX_REG_REQ, mask_sh),\ 200 AUX_SF(DP_AUX0_AUX_ARB_CONTROL, AUX_SW_DONE_USING_AUX_REG, mask_sh),\ 201 AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_START_DELAY, mask_sh),\ 202 AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_WR_BYTES, mask_sh),\ 203 AUX_SF(DP_AUX0_AUX_SW_CONTROL, AUX_SW_GO, mask_sh),\ 204 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ 205 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA_RW, mask_sh),\ 206 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_AUTOINCREMENT_DISABLE, mask_sh),\ 207 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_INDEX, mask_sh),\ 208 AUX_SF(DP_AUX0_AUX_SW_DATA, AUX_SW_DATA, mask_sh),\ 209 AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_REPLY_BYTE_COUNT, mask_sh),\ 210 AUX_SF(DP_AUX0_AUX_SW_STATUS, AUX_SW_DONE, mask_sh),\ 211 AUX_SF(DP_AUX0_AUX_INTERRUPT_CONTROL, AUX_SW_DONE_ACK, mask_sh),\ 212 AUX_SF(DP_AUX0_AUX_DPHY_RX_CONTROL1, AUX_RX_TIMEOUT_LEN, mask_sh),\ 213 AUX_SF(DP_AUX0_AUX_DPHY_RX_CONTROL1, AUX_RX_TIMEOUT_LEN_MUL, mask_sh) 214 215 #define AUX_SF(reg_name, field_name, post_fix)\ 216 .field_name = reg_name ## __ ## field_name ## post_fix 217 218 enum { /* This is the timeout as defined in DP 1.2a, 219 * 2.3.4 "Detailed uPacket TX AUX CH State Description". 220 */ 221 AUX_TIMEOUT_PERIOD = 400, 222 223 /* Ideally, the SW timeout should be just above 550usec 224 * which is programmed in HW. 225 * But the SW timeout of 600usec is not reliable, 226 * because on some systems, delay_in_microseconds() 227 * returns faster than it should. 228 * EPR #379763: by trial-and-error on different systems, 229 * 700usec is the minimum reliable SW timeout for polling 230 * the AUX_SW_STATUS.AUX_SW_DONE bit. 231 * This timeout expires *only* when there is 232 * AUX Error or AUX Timeout conditions - not during normal operation. 233 * During normal operation, AUX_SW_STATUS.AUX_SW_DONE bit is set 234 * at most within ~240usec. That means, 235 * increasing this timeout will not affect normal operation, 236 * and we'll timeout after 237 * SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD = 2400usec. 238 * This timeout is especially important for 239 * converters, resume from S3, and CTS. 240 */ 241 SW_AUX_TIMEOUT_PERIOD_MULTIPLIER = 6 242 }; 243 244 struct dce_aux { 245 uint32_t inst; 246 struct ddc *ddc; 247 struct dc_context *ctx; 248 /* following values are expressed in milliseconds */ 249 uint32_t delay; 250 uint32_t max_defer_write_retry; 251 252 bool acquire_reset; 253 struct dce_aux_funcs *funcs; 254 }; 255 256 struct dce110_aux_registers_mask { 257 DCE_AUX_REG_FIELD_LIST(uint32_t); 258 }; 259 260 struct dce110_aux_registers_shift { 261 DCE_AUX_REG_FIELD_LIST(uint8_t); 262 }; 263 264 265 struct aux_engine_dce110 { 266 struct dce_aux base; 267 const struct dce110_aux_registers *regs; 268 const struct dce110_aux_registers_mask *mask; 269 const struct dce110_aux_registers_shift *shift; 270 struct { 271 uint32_t aux_control; 272 uint32_t aux_arb_control; 273 uint32_t aux_sw_data; 274 uint32_t aux_sw_control; 275 uint32_t aux_interrupt_control; 276 uint32_t aux_dphy_rx_control1; 277 uint32_t aux_dphy_rx_control0; 278 uint32_t aux_sw_status; 279 } addr; 280 uint32_t polling_timeout_period; 281 }; 282 283 struct aux_engine_dce110_init_data { 284 uint32_t engine_id; 285 uint32_t timeout_period; 286 struct dc_context *ctx; 287 const struct dce110_aux_registers *regs; 288 }; 289 290 struct dce_aux *dce110_aux_engine_construct(struct aux_engine_dce110 *aux_engine110, 291 struct dc_context *ctx, 292 uint32_t inst, 293 uint32_t timeout_period, 294 const struct dce110_aux_registers *regs, 295 296 const struct dce110_aux_registers_mask *mask, 297 const struct dce110_aux_registers_shift *shift, 298 bool is_ext_aux_timeout_configurable); 299 300 void dce110_engine_destroy(struct dce_aux **engine); 301 302 bool dce110_aux_engine_acquire( 303 struct dce_aux *aux_engine, 304 struct ddc *ddc); 305 306 int dce_aux_transfer_raw(struct ddc_service *ddc, 307 struct aux_payload *cmd, 308 enum aux_channel_operation_result *operation_result); 309 310 bool dce_aux_transfer_with_retries(struct ddc_service *ddc, 311 struct aux_payload *cmd); 312 313 struct dce_aux_funcs { 314 uint32_t (*configure_timeout) 315 (struct ddc_service *ddc, 316 uint32_t timeout); 317 void (*destroy) 318 (struct aux_engine **ptr); 319 }; 320 321 #endif 322
Indexes created Sun Sep 21 20:09:37 GMT 2025