drivers/serial/atmel_usart.h

   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__ */