drivers/atmel_usart.h

   1 /*
   2  * Register definitions for the Atmel USART3 module.
   3  *
   4  * Copyright (C) 2005-2006 Atmel Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #ifndef __DRIVERS_ATMEL_USART_H__
  21 #define __DRIVERS_ATMEL_USART_H__
  22
  23 /* USART3 register offsets */
  24 #define USART3_CR                               0x0000
  25 #define USART3_MR                               0x0004
  26 #define USART3_IER                              0x0008
  27 #define USART3_IDR                              0x000c
  28 #define USART3_IMR                              0x0010
  29 #define USART3_CSR                              0x0014
  30 #define USART3_RHR                              0x0018
  31 #define USART3_THR                              0x001c
  32 #define USART3_BRGR                             0x0020
  33 #define USART3_RTOR                             0x0024
  34 #define USART3_TTGR                             0x0028
  35 #define USART3_FIDI                             0x0040
  36 #define USART3_NER                              0x0044
  37 #define USART3_XXR                              0x0048
  38 #define USART3_IFR                              0x004c
  39 #define USART3_RPR                              0x0100
  40 #define USART3_RCR                              0x0104
  41 #define USART3_TPR                              0x0108
  42 #define USART3_TCR                              0x010c
  43 #define USART3_RNPR                             0x0110
  44 #define USART3_RNCR                             0x0114
  45 #define USART3_TNPR                             0x0118
  46 #define USART3_TNCR                             0x011c
  47 #define USART3_PTCR                             0x0120
  48 #define USART3_PTSR                             0x0124
  49
  50 /* Bitfields in CR */
  51 #define USART3_RSTRX_OFFSET                     2
  52 #define USART3_RSTRX_SIZE                       1
  53 #define USART3_RSTTX_OFFSET                     3
  54 #define USART3_RSTTX_SIZE                       1
  55 #define USART3_RXEN_OFFSET                      4
  56 #define USART3_RXEN_SIZE                        1
  57 #define USART3_RXDIS_OFFSET                     5
  58 #define USART3_RXDIS_SIZE                       1
  59 #define USART3_TXEN_OFFSET                      6
  60 #define USART3_TXEN_SIZE                        1
  61 #define USART3_TXDIS_OFFSET                     7
  62 #define USART3_TXDIS_SIZE                       1
  63 #define USART3_RSTSTA_OFFSET                    8
  64 #define USART3_RSTSTA_SIZE                      1
  65 #define USART3_STTBRK_OFFSET                    9
  66 #define USART3_STTBRK_SIZE                      1
  67 #define USART3_STPBRK_OFFSET                    10
  68 #define USART3_STPBRK_SIZE                      1
  69 #define USART3_STTTO_OFFSET                     11
  70 #define USART3_STTTO_SIZE                       1
  71 #define USART3_SENDA_OFFSET                     12
  72 #define USART3_SENDA_SIZE                       1
  73 #define USART3_RSTIT_OFFSET                     13
  74 #define USART3_RSTIT_SIZE                       1
  75 #define USART3_RSTNACK_OFFSET                   14
  76 #define USART3_RSTNACK_SIZE                     1
  77 #define USART3_RETTO_OFFSET                     15
  78 #define USART3_RETTO_SIZE                       1
  79 #define USART3_DTREN_OFFSET                     16
  80 #define USART3_DTREN_SIZE                       1
  81 #define USART3_DTRDIS_OFFSET                    17
  82 #define USART3_DTRDIS_SIZE                      1
  83 #define USART3_RTSEN_OFFSET                     18
  84 #define USART3_RTSEN_SIZE                       1
  85 #define USART3_RTSDIS_OFFSET                    19
  86 #define USART3_RTSDIS_SIZE                      1
  87 #define USART3_COMM_TX_OFFSET                   30
  88 #define USART3_COMM_TX_SIZE                     1
  89 #define USART3_COMM_RX_OFFSET                   31
  90 #define USART3_COMM_RX_SIZE                     1
  91
  92 /* Bitfields in MR */
  93 #define USART3_USART_MODE_OFFSET                0
  94 #define USART3_USART_MODE_SIZE                  4
  95 #define USART3_USCLKS_OFFSET                    4
  96 #define USART3_USCLKS_SIZE                      2
  97 #define USART3_CHRL_OFFSET                      6
  98 #define USART3_CHRL_SIZE                        2
  99 #define USART3_SYNC_OFFSET                      8
 100 #define USART3_SYNC_SIZE                        1
 101 #define USART3_PAR_OFFSET                       9
 102 #define USART3_PAR_SIZE                         3
 103 #define USART3_NBSTOP_OFFSET                    12
 104 #define USART3_NBSTOP_SIZE                      2
 105 #define USART3_CHMODE_OFFSET                    14
 106 #define USART3_CHMODE_SIZE                      2
 107 #define USART3_MSBF_OFFSET                      16
 108 #define USART3_MSBF_SIZE                        1
 109 #define USART3_MODE9_OFFSET                     17
 110 #define USART3_MODE9_SIZE                       1
 111 #define USART3_CLKO_OFFSET                      18
 112 #define USART3_CLKO_SIZE                        1
 113 #define USART3_OVER_OFFSET                      19
 114 #define USART3_OVER_SIZE                        1
 115 #define USART3_INACK_OFFSET                     20
 116 #define USART3_INACK_SIZE                       1
 117 #define USART3_DSNACK_OFFSET                    21
 118 #define USART3_DSNACK_SIZE                      1
 119 #define USART3_MAX_ITERATION_OFFSET             24
 120 #define USART3_MAX_ITERATION_SIZE               3
 121 #define USART3_FILTER_OFFSET                    28
 122 #define USART3_FILTER_SIZE                      1
 123
 124 /* Bitfields in CSR */
 125 #define USART3_RXRDY_OFFSET                     0
 126 #define USART3_RXRDY_SIZE                       1
 127 #define USART3_TXRDY_OFFSET                     1
 128 #define USART3_TXRDY_SIZE                       1
 129 #define USART3_RXBRK_OFFSET                     2
 130 #define USART3_RXBRK_SIZE                       1
 131 #define USART3_ENDRX_OFFSET                     3
 132 #define USART3_ENDRX_SIZE                       1
 133 #define USART3_ENDTX_OFFSET                     4
 134 #define USART3_ENDTX_SIZE                       1
 135 #define USART3_OVRE_OFFSET                      5
 136 #define USART3_OVRE_SIZE                        1
 137 #define USART3_FRAME_OFFSET                     6
 138 #define USART3_FRAME_SIZE                       1
 139 #define USART3_PARE_OFFSET                      7
 140 #define USART3_PARE_SIZE                        1
 141 #define USART3_TIMEOUT_OFFSET                   8
 142 #define USART3_TIMEOUT_SIZE                     1
 143 #define USART3_TXEMPTY_OFFSET                   9
 144 #define USART3_TXEMPTY_SIZE                     1
 145 #define USART3_ITERATION_OFFSET                 10
 146 #define USART3_ITERATION_SIZE                   1
 147 #define USART3_TXBUFE_OFFSET                    11
 148 #define USART3_TXBUFE_SIZE                      1
 149 #define USART3_RXBUFF_OFFSET                    12
 150 #define USART3_RXBUFF_SIZE                      1
 151 #define USART3_NACK_OFFSET                      13
 152 #define USART3_NACK_SIZE                        1
 153 #define USART3_RIIC_OFFSET                      16
 154 #define USART3_RIIC_SIZE                        1
 155 #define USART3_DSRIC_OFFSET                     17
 156 #define USART3_DSRIC_SIZE                       1
 157 #define USART3_DCDIC_OFFSET                     18
 158 #define USART3_DCDIC_SIZE                       1
 159 #define USART3_CTSIC_OFFSET                     19
 160 #define USART3_CTSIC_SIZE                       1
 161 #define USART3_RI_OFFSET                        20
 162 #define USART3_RI_SIZE                          1
 163 #define USART3_DSR_OFFSET                       21
 164 #define USART3_DSR_SIZE                         1
 165 #define USART3_DCD_OFFSET                       22
 166 #define USART3_DCD_SIZE                         1
 167 #define USART3_CTS_OFFSET                       23
 168 #define USART3_CTS_SIZE                         1
 169
 170 /* Bitfields in RHR */
 171 #define USART3_RXCHR_OFFSET                     0
 172 #define USART3_RXCHR_SIZE                       9
 173
 174 /* Bitfields in THR */
 175 #define USART3_TXCHR_OFFSET                     0
 176 #define USART3_TXCHR_SIZE                       9
 177
 178 /* Bitfields in BRGR */
 179 #define USART3_CD_OFFSET                        0
 180 #define USART3_CD_SIZE                          16
 181
 182 /* Bitfields in RTOR */
 183 #define USART3_TO_OFFSET                        0
 184 #define USART3_TO_SIZE                          16
 185
 186 /* Bitfields in TTGR */
 187 #define USART3_TG_OFFSET                        0
 188 #define USART3_TG_SIZE                          8
 189
 190 /* Bitfields in FIDI */
 191 #define USART3_FI_DI_RATIO_OFFSET               0
 192 #define USART3_FI_DI_RATIO_SIZE                 11
 193
 194 /* Bitfields in NER */
 195 #define USART3_NB_ERRORS_OFFSET                 0
 196 #define USART3_NB_ERRORS_SIZE                   8
 197
 198 /* Bitfields in XXR */
 199 #define USART3_XOFF_OFFSET                      0
 200 #define USART3_XOFF_SIZE                        8
 201 #define USART3_XON_OFFSET                       8
 202 #define USART3_XON_SIZE                         8
 203
 204 /* Bitfields in IFR */
 205 #define USART3_IRDA_FILTER_OFFSET               0
 206 #define USART3_IRDA_FILTER_SIZE                 8
 207
 208 /* Bitfields in RCR */
 209 #define USART3_RXCTR_OFFSET                     0
 210 #define USART3_RXCTR_SIZE                       16
 211
 212 /* Bitfields in TCR */
 213 #define USART3_TXCTR_OFFSET                     0
 214 #define USART3_TXCTR_SIZE                       16
 215
 216 /* Bitfields in RNCR */
 217 #define USART3_RXNCR_OFFSET                     0
 218 #define USART3_RXNCR_SIZE                       16
 219
 220 /* Bitfields in TNCR */
 221 #define USART3_TXNCR_OFFSET                     0
 222 #define USART3_TXNCR_SIZE                       16
 223
 224 /* Bitfields in PTCR */
 225 #define USART3_RXTEN_OFFSET                     0
 226 #define USART3_RXTEN_SIZE                       1
 227 #define USART3_RXTDIS_OFFSET                    1
 228 #define USART3_RXTDIS_SIZE                      1
 229 #define USART3_TXTEN_OFFSET                     8
 230 #define USART3_TXTEN_SIZE                       1
 231 #define USART3_TXTDIS_OFFSET                    9
 232 #define USART3_TXTDIS_SIZE                      1
 233
 234 /* Constants for USART_MODE */
 235 #define USART3_USART_MODE_NORMAL                0
 236 #define USART3_USART_MODE_RS485                 1
 237 #define USART3_USART_MODE_HARDWARE              2
 238 #define USART3_USART_MODE_MODEM                 3
 239 #define USART3_USART_MODE_ISO7816_T0            4
 240 #define USART3_USART_MODE_ISO7816_T1            6
 241 #define USART3_USART_MODE_IRDA                  8
 242
 243 /* Constants for USCLKS */
 244 #define USART3_USCLKS_MCK                       0
 245 #define USART3_USCLKS_MCK_DIV                   1
 246 #define USART3_USCLKS_SCK                       3
 247
 248 /* Constants for CHRL */
 249 #define USART3_CHRL_5                           0
 250 #define USART3_CHRL_6                           1
 251 #define USART3_CHRL_7                           2
 252 #define USART3_CHRL_8                           3
 253
 254 /* Constants for PAR */
 255 #define USART3_PAR_EVEN                         0
 256 #define USART3_PAR_ODD                          1
 257 #define USART3_PAR_SPACE                        2
 258 #define USART3_PAR_MARK                         3
 259 #define USART3_PAR_NONE                         4
 260 #define USART3_PAR_MULTI                        6
 261
 262 /* Constants for NBSTOP */
 263 #define USART3_NBSTOP_1                         0
 264 #define USART3_NBSTOP_1_5                       1
 265 #define USART3_NBSTOP_2                         2
 266
 267 /* Constants for CHMODE */
 268 #define USART3_CHMODE_NORMAL                    0
 269 #define USART3_CHMODE_ECHO                      1
 270 #define USART3_CHMODE_LOCAL_LOOP                2
 271 #define USART3_CHMODE_REMOTE_LOOP               3
 272
 273 /* Constants for MSBF */
 274 #define USART3_MSBF_LSBF                        0
 275 #define USART3_MSBF_MSBF                        1
 276
 277 /* Constants for OVER */
 278 #define USART3_OVER_X16                         0
 279 #define USART3_OVER_X8                          1
 280
 281 /* Constants for CD */
 282 #define USART3_CD_DISABLE                       0
 283 #define USART3_CD_BYPASS                        1
 284
 285 /* Constants for TO */
 286 #define USART3_TO_DISABLE                       0
 287
 288 /* Constants for TG */
 289 #define USART3_TG_DISABLE                       0
 290
 291 /* Constants for FI_DI_RATIO */
 292 #define USART3_FI_DI_RATIO_DISABLE              0
 293
 294 /* Bit manipulation macros */
 295 #define USART3_BIT(name)                                \
 296         (1 << USART3_##name##_OFFSET)
 297 #define USART3_BF(name,value)                           \
 298         (((value) & ((1 << USART3_##name##_SIZE) - 1))  \
 299          << USART3_##name##_OFFSET)
 300 #define USART3_BFEXT(name,value)                        \
 301         (((value) >> USART3_##name##_OFFSET)            \
 302          & ((1 << USART3_##name##_SIZE) - 1))
 303 #define USART3_BFINS(name,value,old)                    \
 304         (((old) & ~(((1 << USART3_##name##_SIZE) - 1)   \
 305                     << USART3_##name##_OFFSET))         \
 306          | USART3_BF(name,value))
 307
 308 /* Register access macros */
 309 #define usart3_readl(reg)                               \
 310         readl((void *)USART_BASE + USART3_##reg)
 311 #define usart3_writel(reg,value)                        \
 312         writel((value), (void *)USART_BASE + USART3_##reg)
 313
 314 #endif /* __DRIVERS_ATMEL_USART_H__ */