1 /* 2 * Register definitions for the Atmel USART3 module. 3 * 4 * Copyright (C) 2005-2006 Atmel Corporation 5 * 6 * Modified to support C structure SoC access by 7 * Andreas Bießmann <biessmann@corscience.de> 8 * 9 * SPDX-License-Identifier: GPL-2.0+ 10 */ 11 #ifndef __DRIVERS_ATMEL_USART_H__ 12 #define __DRIVERS_ATMEL_USART_H__ 13 14 /* USART3 register footprint */ 15 typedef struct atmel_usart3 { 16 u32 cr; 17 u32 mr; 18 u32 ier; 19 u32 idr; 20 u32 imr; 21 u32 csr; 22 u32 rhr; 23 u32 thr; 24 u32 brgr; 25 u32 rtor; 26 u32 ttgr; 27 u32 reserved0[5]; 28 u32 fidi; 29 u32 ner; 30 u32 reserved1; 31 u32 ifr; 32 u32 man; 33 u32 reserved2[54]; /* version and PDC not needed */ 34 } atmel_usart3_t; 35 36 /* Bitfields in CR */ 37 #define USART3_RSTRX_OFFSET 2 38 #define USART3_RSTRX_SIZE 1 39 #define USART3_RSTTX_OFFSET 3 40 #define USART3_RSTTX_SIZE 1 41 #define USART3_RXEN_OFFSET 4 42 #define USART3_RXEN_SIZE 1 43 #define USART3_RXDIS_OFFSET 5 44 #define USART3_RXDIS_SIZE 1 45 #define USART3_TXEN_OFFSET 6 46 #define USART3_TXEN_SIZE 1 47 #define USART3_TXDIS_OFFSET 7 48 #define USART3_TXDIS_SIZE 1 49 #define USART3_RSTSTA_OFFSET 8 50 #define USART3_RSTSTA_SIZE 1 51 #define USART3_STTBRK_OFFSET 9 52 #define USART3_STTBRK_SIZE 1 53 #define USART3_STPBRK_OFFSET 10 54 #define USART3_STPBRK_SIZE 1 55 #define USART3_STTTO_OFFSET 11 56 #define USART3_STTTO_SIZE 1 57 #define USART3_SENDA_OFFSET 12 58 #define USART3_SENDA_SIZE 1 59 #define USART3_RSTIT_OFFSET 13 60 #define USART3_RSTIT_SIZE 1 61 #define USART3_RSTNACK_OFFSET 14 62 #define USART3_RSTNACK_SIZE 1 63 #define USART3_RETTO_OFFSET 15 64 #define USART3_RETTO_SIZE 1 65 #define USART3_DTREN_OFFSET 16 66 #define USART3_DTREN_SIZE 1 67 #define USART3_DTRDIS_OFFSET 17 68 #define USART3_DTRDIS_SIZE 1 69 #define USART3_RTSEN_OFFSET 18 70 #define USART3_RTSEN_SIZE 1 71 #define USART3_RTSDIS_OFFSET 19 72 #define USART3_RTSDIS_SIZE 1 73 #define USART3_COMM_TX_OFFSET 30 74 #define USART3_COMM_TX_SIZE 1 75 #define USART3_COMM_RX_OFFSET 31 76 #define USART3_COMM_RX_SIZE 1 77 78 /* Bitfields in MR */ 79 #define USART3_USART_MODE_OFFSET 0 80 #define USART3_USART_MODE_SIZE 4 81 #define USART3_USCLKS_OFFSET 4 82 #define USART3_USCLKS_SIZE 2 83 #define USART3_CHRL_OFFSET 6 84 #define USART3_CHRL_SIZE 2 85 #define USART3_SYNC_OFFSET 8 86 #define USART3_SYNC_SIZE 1 87 #define USART3_PAR_OFFSET 9 88 #define USART3_PAR_SIZE 3 89 #define USART3_NBSTOP_OFFSET 12 90 #define USART3_NBSTOP_SIZE 2 91 #define USART3_CHMODE_OFFSET 14 92 #define USART3_CHMODE_SIZE 2 93 #define USART3_MSBF_OFFSET 16 94 #define USART3_MSBF_SIZE 1 95 #define USART3_MODE9_OFFSET 17 96 #define USART3_MODE9_SIZE 1 97 #define USART3_CLKO_OFFSET 18 98 #define USART3_CLKO_SIZE 1 99 #define USART3_OVER_OFFSET 19 100 #define USART3_OVER_SIZE 1 101 #define USART3_INACK_OFFSET 20 102 #define USART3_INACK_SIZE 1 103 #define USART3_DSNACK_OFFSET 21 104 #define USART3_DSNACK_SIZE 1 105 #define USART3_MAX_ITERATION_OFFSET 24 106 #define USART3_MAX_ITERATION_SIZE 3 107 #define USART3_FILTER_OFFSET 28 108 #define USART3_FILTER_SIZE 1 109 110 /* Bitfields in CSR */ 111 #define USART3_RXRDY_OFFSET 0 112 #define USART3_RXRDY_SIZE 1 113 #define USART3_TXRDY_OFFSET 1 114 #define USART3_TXRDY_SIZE 1 115 #define USART3_RXBRK_OFFSET 2 116 #define USART3_RXBRK_SIZE 1 117 #define USART3_ENDRX_OFFSET 3 118 #define USART3_ENDRX_SIZE 1 119 #define USART3_ENDTX_OFFSET 4 120 #define USART3_ENDTX_SIZE 1 121 #define USART3_OVRE_OFFSET 5 122 #define USART3_OVRE_SIZE 1 123 #define USART3_FRAME_OFFSET 6 124 #define USART3_FRAME_SIZE 1 125 #define USART3_PARE_OFFSET 7 126 #define USART3_PARE_SIZE 1 127 #define USART3_TIMEOUT_OFFSET 8 128 #define USART3_TIMEOUT_SIZE 1 129 #define USART3_TXEMPTY_OFFSET 9 130 #define USART3_TXEMPTY_SIZE 1 131 #define USART3_ITERATION_OFFSET 10 132 #define USART3_ITERATION_SIZE 1 133 #define USART3_TXBUFE_OFFSET 11 134 #define USART3_TXBUFE_SIZE 1 135 #define USART3_RXBUFF_OFFSET 12 136 #define USART3_RXBUFF_SIZE 1 137 #define USART3_NACK_OFFSET 13 138 #define USART3_NACK_SIZE 1 139 #define USART3_RIIC_OFFSET 16 140 #define USART3_RIIC_SIZE 1 141 #define USART3_DSRIC_OFFSET 17 142 #define USART3_DSRIC_SIZE 1 143 #define USART3_DCDIC_OFFSET 18 144 #define USART3_DCDIC_SIZE 1 145 #define USART3_CTSIC_OFFSET 19 146 #define USART3_CTSIC_SIZE 1 147 #define USART3_RI_OFFSET 20 148 #define USART3_RI_SIZE 1 149 #define USART3_DSR_OFFSET 21 150 #define USART3_DSR_SIZE 1 151 #define USART3_DCD_OFFSET 22 152 #define USART3_DCD_SIZE 1 153 #define USART3_CTS_OFFSET 23 154 #define USART3_CTS_SIZE 1 155 156 /* Bitfields in RHR */ 157 #define USART3_RXCHR_OFFSET 0 158 #define USART3_RXCHR_SIZE 9 159 160 /* Bitfields in THR */ 161 #define USART3_TXCHR_OFFSET 0 162 #define USART3_TXCHR_SIZE 9 163 164 /* Bitfields in BRGR */ 165 #define USART3_CD_OFFSET 0 166 #define USART3_CD_SIZE 16 167 168 /* Bitfields in RTOR */ 169 #define USART3_TO_OFFSET 0 170 #define USART3_TO_SIZE 16 171 172 /* Bitfields in TTGR */ 173 #define USART3_TG_OFFSET 0 174 #define USART3_TG_SIZE 8 175 176 /* Bitfields in FIDI */ 177 #define USART3_FI_DI_RATIO_OFFSET 0 178 #define USART3_FI_DI_RATIO_SIZE 11 179 180 /* Bitfields in NER */ 181 #define USART3_NB_ERRORS_OFFSET 0 182 #define USART3_NB_ERRORS_SIZE 8 183 184 /* Bitfields in XXR */ 185 #define USART3_XOFF_OFFSET 0 186 #define USART3_XOFF_SIZE 8 187 #define USART3_XON_OFFSET 8 188 #define USART3_XON_SIZE 8 189 190 /* Bitfields in IFR */ 191 #define USART3_IRDA_FILTER_OFFSET 0 192 #define USART3_IRDA_FILTER_SIZE 8 193 194 /* Bitfields in RCR */ 195 #define USART3_RXCTR_OFFSET 0 196 #define USART3_RXCTR_SIZE 16 197 198 /* Bitfields in TCR */ 199 #define USART3_TXCTR_OFFSET 0 200 #define USART3_TXCTR_SIZE 16 201 202 /* Bitfields in RNCR */ 203 #define USART3_RXNCR_OFFSET 0 204 #define USART3_RXNCR_SIZE 16 205 206 /* Bitfields in TNCR */ 207 #define USART3_TXNCR_OFFSET 0 208 #define USART3_TXNCR_SIZE 16 209 210 /* Bitfields in PTCR */ 211 #define USART3_RXTEN_OFFSET 0 212 #define USART3_RXTEN_SIZE 1 213 #define USART3_RXTDIS_OFFSET 1 214 #define USART3_RXTDIS_SIZE 1 215 #define USART3_TXTEN_OFFSET 8 216 #define USART3_TXTEN_SIZE 1 217 #define USART3_TXTDIS_OFFSET 9 218 #define USART3_TXTDIS_SIZE 1 219 220 /* Constants for USART_MODE */ 221 #define USART3_USART_MODE_NORMAL 0 222 #define USART3_USART_MODE_RS485 1 223 #define USART3_USART_MODE_HARDWARE 2 224 #define USART3_USART_MODE_MODEM 3 225 #define USART3_USART_MODE_ISO7816_T0 4 226 #define USART3_USART_MODE_ISO7816_T1 6 227 #define USART3_USART_MODE_IRDA 8 228 229 /* Constants for USCLKS */ 230 #define USART3_USCLKS_MCK 0 231 #define USART3_USCLKS_MCK_DIV 1 232 #define USART3_USCLKS_SCK 3 233 234 /* Constants for CHRL */ 235 #define USART3_CHRL_5 0 236 #define USART3_CHRL_6 1 237 #define USART3_CHRL_7 2 238 #define USART3_CHRL_8 3 239 240 /* Constants for PAR */ 241 #define USART3_PAR_EVEN 0 242 #define USART3_PAR_ODD 1 243 #define USART3_PAR_SPACE 2 244 #define USART3_PAR_MARK 3 245 #define USART3_PAR_NONE 4 246 #define USART3_PAR_MULTI 6 247 248 /* Constants for NBSTOP */ 249 #define USART3_NBSTOP_1 0 250 #define USART3_NBSTOP_1_5 1 251 #define USART3_NBSTOP_2 2 252 253 /* Constants for CHMODE */ 254 #define USART3_CHMODE_NORMAL 0 255 #define USART3_CHMODE_ECHO 1 256 #define USART3_CHMODE_LOCAL_LOOP 2 257 #define USART3_CHMODE_REMOTE_LOOP 3 258 259 /* Constants for MSBF */ 260 #define USART3_MSBF_LSBF 0 261 #define USART3_MSBF_MSBF 1 262 263 /* Constants for OVER */ 264 #define USART3_OVER_X16 0 265 #define USART3_OVER_X8 1 266 267 /* Constants for CD */ 268 #define USART3_CD_DISABLE 0 269 #define USART3_CD_BYPASS 1 270 271 /* Constants for TO */ 272 #define USART3_TO_DISABLE 0 273 274 /* Constants for TG */ 275 #define USART3_TG_DISABLE 0 276 277 /* Constants for FI_DI_RATIO */ 278 #define USART3_FI_DI_RATIO_DISABLE 0 279 280 /* Bit manipulation macros */ 281 #define USART3_BIT(name) \ 282 (1 << USART3_##name##_OFFSET) 283 #define USART3_BF(name,value) \ 284 (((value) & ((1 << USART3_##name##_SIZE) - 1)) \ 285 << USART3_##name##_OFFSET) 286 #define USART3_BFEXT(name,value) \ 287 (((value) >> USART3_##name##_OFFSET) \ 288 & ((1 << USART3_##name##_SIZE) - 1)) 289 #define USART3_BFINS(name,value,old) \ 290 (((old) & ~(((1 << USART3_##name##_SIZE) - 1) \ 291 << USART3_##name##_OFFSET)) \ 292 | USART3_BF(name,value)) 293 294 #endif /* __DRIVERS_ATMEL_USART_H__ */ 295