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