include/asm-mips/sibyte/sb1250_uart.h

   1 /*  *********************************************************************
   2     *  SB1250 Board Support Package
   3     *
   4     *  UART Constants                           File: sb1250_uart.h
   5     *
   6     *  This module contains constants and macros useful for
   7     *  manipulating the SB1250's UARTs
   8     *
   9     *  SB1250 specification level:  User's manual 1/02/02
  10     *
  11     *********************************************************************
  12     *
  13     *  Copyright 2000,2001,2002,2003
  14     *  Broadcom Corporation. All rights reserved.
  15     *
  16     *  This program is free software; you can redistribute it and/or
  17     *  modify it under the terms of the GNU General Public License as
  18     *  published by the Free Software Foundation; either version 2 of
  19     *  the License, or (at your option) any later version.
  20     *
  21     *  This program is distributed in the hope that it will be useful,
  22     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  23     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24     *  GNU General Public License for more details.
  25     *
  26     *  You should have received a copy of the GNU General Public License
  27     *  along with this program; if not, write to the Free Software
  28     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  29     *  MA 02111-1307 USA
  30     ********************************************************************* */
  31
  32
  33 #ifndef _SB1250_UART_H
  34 #define _SB1250_UART_H
  35
  36 #include "sb1250_defs.h"
  37
  38 /* **********************************************************************
  39    * DUART Registers
  40    ********************************************************************** */
  41
  42 /*
  43  * DUART Mode Register #1 (Table 10-3)
  44  * Register: DUART_MODE_REG_1_A
  45  * Register: DUART_MODE_REG_1_B
  46  */
  47
  48 #define S_DUART_BITS_PER_CHAR       0
  49 #define M_DUART_BITS_PER_CHAR       _SB_MAKEMASK(2, S_DUART_BITS_PER_CHAR)
  50 #define V_DUART_BITS_PER_CHAR(x)    _SB_MAKEVALUE(x, S_DUART_BITS_PER_CHAR)
  51
  52 #define K_DUART_BITS_PER_CHAR_RSV0  0
  53 #define K_DUART_BITS_PER_CHAR_RSV1  1
  54 #define K_DUART_BITS_PER_CHAR_7     2
  55 #define K_DUART_BITS_PER_CHAR_8     3
  56
  57 #define V_DUART_BITS_PER_CHAR_RSV0  V_DUART_BITS_PER_CHAR(K_DUART_BITS_PER_CHAR_RSV0)
  58 #define V_DUART_BITS_PER_CHAR_RSV1  V_DUART_BITS_PER_CHAR(K_DUART_BITS_PER_CHAR_RSV1)
  59 #define V_DUART_BITS_PER_CHAR_7     V_DUART_BITS_PER_CHAR(K_DUART_BITS_PER_CHAR_7)
  60 #define V_DUART_BITS_PER_CHAR_8     V_DUART_BITS_PER_CHAR(K_DUART_BITS_PER_CHAR_8)
  61
  62
  63 #define M_DUART_PARITY_TYPE_EVEN    0x00
  64 #define M_DUART_PARITY_TYPE_ODD     _SB_MAKEMASK1(2)
  65
  66 #define S_DUART_PARITY_MODE          3
  67 #define M_DUART_PARITY_MODE         _SB_MAKEMASK(2, S_DUART_PARITY_MODE)
  68 #define V_DUART_PARITY_MODE(x)      _SB_MAKEVALUE(x, S_DUART_PARITY_MODE)
  69
  70 #define K_DUART_PARITY_MODE_ADD       0
  71 #define K_DUART_PARITY_MODE_ADD_FIXED 1
  72 #define K_DUART_PARITY_MODE_NONE      2
  73
  74 #define V_DUART_PARITY_MODE_ADD       V_DUART_PARITY_MODE(K_DUART_PARITY_MODE_ADD)
  75 #define V_DUART_PARITY_MODE_ADD_FIXED V_DUART_PARITY_MODE(K_DUART_PARITY_MODE_ADD_FIXED)
  76 #define V_DUART_PARITY_MODE_NONE      V_DUART_PARITY_MODE(K_DUART_PARITY_MODE_NONE)
  77
  78 #define M_DUART_TX_IRQ_SEL_TXRDY    0
  79 #define M_DUART_TX_IRQ_SEL_TXEMPT   _SB_MAKEMASK1(5)
  80
  81 #define M_DUART_RX_IRQ_SEL_RXRDY    0
  82 #define M_DUART_RX_IRQ_SEL_RXFULL   _SB_MAKEMASK1(6)
  83
  84 #define M_DUART_RX_RTS_ENA          _SB_MAKEMASK1(7)
  85
  86 /*
  87  * DUART Mode Register #2 (Table 10-4)
  88  * Register: DUART_MODE_REG_2_A
  89  * Register: DUART_MODE_REG_2_B
  90  */
  91
  92 #define M_DUART_MODE_RESERVED1      _SB_MAKEMASK(3, 0)   /* ignored */
  93
  94 #define M_DUART_STOP_BIT_LEN_2      _SB_MAKEMASK1(3)
  95 #define M_DUART_STOP_BIT_LEN_1      0
  96
  97 #define M_DUART_TX_CTS_ENA          _SB_MAKEMASK1(4)
  98
  99
 100 #define M_DUART_MODE_RESERVED2      _SB_MAKEMASK1(5)    /* must be zero */
 101
 102 #define S_DUART_CHAN_MODE           6
 103 #define M_DUART_CHAN_MODE           _SB_MAKEMASK(2, S_DUART_CHAN_MODE)
 104 #define V_DUART_CHAN_MODE(x)        _SB_MAKEVALUE(x, S_DUART_CHAN_MODE)
 105
 106 #define K_DUART_CHAN_MODE_NORMAL    0
 107 #define K_DUART_CHAN_MODE_LCL_LOOP  2
 108 #define K_DUART_CHAN_MODE_REM_LOOP  3
 109
 110 #define V_DUART_CHAN_MODE_NORMAL    V_DUART_CHAN_MODE(K_DUART_CHAN_MODE_NORMAL)
 111 #define V_DUART_CHAN_MODE_LCL_LOOP  V_DUART_CHAN_MODE(K_DUART_CHAN_MODE_LCL_LOOP)
 112 #define V_DUART_CHAN_MODE_REM_LOOP  V_DUART_CHAN_MODE(K_DUART_CHAN_MODE_REM_LOOP)
 113
 114 /*
 115  * DUART Command Register (Table 10-5)
 116  * Register: DUART_CMD_A
 117  * Register: DUART_CMD_B
 118  */
 119
 120 #define M_DUART_RX_EN               _SB_MAKEMASK1(0)
 121 #define M_DUART_RX_DIS              _SB_MAKEMASK1(1)
 122 #define M_DUART_TX_EN               _SB_MAKEMASK1(2)
 123 #define M_DUART_TX_DIS              _SB_MAKEMASK1(3)
 124
 125 #define S_DUART_MISC_CMD            4
 126 #define M_DUART_MISC_CMD            _SB_MAKEMASK(3, S_DUART_MISC_CMD)
 127 #define V_DUART_MISC_CMD(x)         _SB_MAKEVALUE(x, S_DUART_MISC_CMD)
 128
 129 #define K_DUART_MISC_CMD_NOACTION0       0
 130 #define K_DUART_MISC_CMD_NOACTION1       1
 131 #define K_DUART_MISC_CMD_RESET_RX        2
 132 #define K_DUART_MISC_CMD_RESET_TX        3
 133 #define K_DUART_MISC_CMD_NOACTION4       4
 134 #define K_DUART_MISC_CMD_RESET_BREAK_INT 5
 135 #define K_DUART_MISC_CMD_START_BREAK     6
 136 #define K_DUART_MISC_CMD_STOP_BREAK      7
 137
 138 #define V_DUART_MISC_CMD_NOACTION0       V_DUART_MISC_CMD(K_DUART_MISC_CMD_NOACTION0)
 139 #define V_DUART_MISC_CMD_NOACTION1       V_DUART_MISC_CMD(K_DUART_MISC_CMD_NOACTION1)
 140 #define V_DUART_MISC_CMD_RESET_RX        V_DUART_MISC_CMD(K_DUART_MISC_CMD_RESET_RX)
 141 #define V_DUART_MISC_CMD_RESET_TX        V_DUART_MISC_CMD(K_DUART_MISC_CMD_RESET_TX)
 142 #define V_DUART_MISC_CMD_NOACTION4       V_DUART_MISC_CMD(K_DUART_MISC_CMD_NOACTION4)
 143 #define V_DUART_MISC_CMD_RESET_BREAK_INT V_DUART_MISC_CMD(K_DUART_MISC_CMD_RESET_BREAK_INT)
 144 #define V_DUART_MISC_CMD_START_BREAK     V_DUART_MISC_CMD(K_DUART_MISC_CMD_START_BREAK)
 145 #define V_DUART_MISC_CMD_STOP_BREAK      V_DUART_MISC_CMD(K_DUART_MISC_CMD_STOP_BREAK)
 146
 147 #define M_DUART_CMD_RESERVED             _SB_MAKEMASK1(7)
 148
 149 /*
 150  * DUART Status Register (Table 10-6)
 151  * Register: DUART_STATUS_A
 152  * Register: DUART_STATUS_B
 153  * READ-ONLY
 154  */
 155
 156 #define M_DUART_RX_RDY              _SB_MAKEMASK1(0)
 157 #define M_DUART_RX_FFUL             _SB_MAKEMASK1(1)
 158 #define M_DUART_TX_RDY              _SB_MAKEMASK1(2)
 159 #define M_DUART_TX_EMT              _SB_MAKEMASK1(3)
 160 #define M_DUART_OVRUN_ERR           _SB_MAKEMASK1(4)
 161 #define M_DUART_PARITY_ERR          _SB_MAKEMASK1(5)
 162 #define M_DUART_FRM_ERR             _SB_MAKEMASK1(6)
 163 #define M_DUART_RCVD_BRK            _SB_MAKEMASK1(7)
 164
 165 /*
 166  * DUART Baud Rate Register (Table 10-7)
 167  * Register: DUART_CLK_SEL_A
 168  * Register: DUART_CLK_SEL_B
 169  */
 170
 171 #define M_DUART_CLK_COUNTER         _SB_MAKEMASK(12, 0)
 172 #define V_DUART_BAUD_RATE(x)        (100000000/((x)*20)-1)
 173
 174 /*
 175  * DUART Data Registers (Table 10-8 and 10-9)
 176  * Register: DUART_RX_HOLD_A
 177  * Register: DUART_RX_HOLD_B
 178  * Register: DUART_TX_HOLD_A
 179  * Register: DUART_TX_HOLD_B
 180  */
 181
 182 #define M_DUART_RX_DATA             _SB_MAKEMASK(8, 0)
 183 #define M_DUART_TX_DATA             _SB_MAKEMASK(8, 0)
 184
 185 /*
 186  * DUART Input Port Register (Table 10-10)
 187  * Register: DUART_IN_PORT
 188  */
 189
 190 #define M_DUART_IN_PIN0_VAL         _SB_MAKEMASK1(0)
 191 #define M_DUART_IN_PIN1_VAL         _SB_MAKEMASK1(1)
 192 #define M_DUART_IN_PIN2_VAL         _SB_MAKEMASK1(2)
 193 #define M_DUART_IN_PIN3_VAL         _SB_MAKEMASK1(3)
 194 #define M_DUART_IN_PIN4_VAL         _SB_MAKEMASK1(4)
 195 #define M_DUART_IN_PIN5_VAL         _SB_MAKEMASK1(5)
 196 #define M_DUART_RIN0_PIN            _SB_MAKEMASK1(6)
 197 #define M_DUART_RIN1_PIN            _SB_MAKEMASK1(7)
 198
 199 /*
 200  * DUART Input Port Change Status Register (Tables 10-11, 10-12, and 10-13)
 201  * Register: DUART_INPORT_CHNG
 202  */
 203
 204 #define S_DUART_IN_PIN_VAL          0
 205 #define M_DUART_IN_PIN_VAL          _SB_MAKEMASK(4, S_DUART_IN_PIN_VAL)
 206
 207 #define S_DUART_IN_PIN_CHNG         4
 208 #define M_DUART_IN_PIN_CHNG         _SB_MAKEMASK(4, S_DUART_IN_PIN_CHNG)
 209
 210
 211 /*
 212  * DUART Output port control register (Table 10-14)
 213  * Register: DUART_OPCR
 214  */
 215
 216 #define M_DUART_OPCR_RESERVED0      _SB_MAKEMASK1(0)   /* must be zero */
 217 #define M_DUART_OPC2_SEL            _SB_MAKEMASK1(1)
 218 #define M_DUART_OPCR_RESERVED1      _SB_MAKEMASK1(2)   /* must be zero */
 219 #define M_DUART_OPC3_SEL            _SB_MAKEMASK1(3)
 220 #define M_DUART_OPCR_RESERVED2      _SB_MAKEMASK(4, 4)  /* must be zero */
 221
 222 /*
 223  * DUART Aux Control Register (Table 10-15)
 224  * Register: DUART_AUX_CTRL
 225  */
 226
 227 #define M_DUART_IP0_CHNG_ENA        _SB_MAKEMASK1(0)
 228 #define M_DUART_IP1_CHNG_ENA        _SB_MAKEMASK1(1)
 229 #define M_DUART_IP2_CHNG_ENA        _SB_MAKEMASK1(2)
 230 #define M_DUART_IP3_CHNG_ENA        _SB_MAKEMASK1(3)
 231 #define M_DUART_ACR_RESERVED        _SB_MAKEMASK(4, 4)
 232
 233 #define M_DUART_CTS_CHNG_ENA        _SB_MAKEMASK1(0)
 234 #define M_DUART_CIN_CHNG_ENA        _SB_MAKEMASK1(2)
 235
 236 /*
 237  * DUART Interrupt Status Register (Table 10-16)
 238  * Register: DUART_ISR
 239  */
 240
 241 #define M_DUART_ISR_TX_A            _SB_MAKEMASK1(0)
 242
 243 #define S_DUART_ISR_RX_A            1
 244 #define M_DUART_ISR_RX_A            _SB_MAKEMASK1(S_DUART_ISR_RX_A)
 245 #define V_DUART_ISR_RX_A(x)         _SB_MAKEVALUE(x, S_DUART_ISR_RX_A)
 246 #define G_DUART_ISR_RX_A(x)         _SB_GETVALUE(x, S_DUART_ISR_RX_A, M_DUART_ISR_RX_A)
 247
 248 #define M_DUART_ISR_BRK_A           _SB_MAKEMASK1(2)
 249 #define M_DUART_ISR_IN_A            _SB_MAKEMASK1(3)
 250 #define M_DUART_ISR_ALL_A           _SB_MAKEMASK(4, 0)
 251
 252 #define M_DUART_ISR_TX_B            _SB_MAKEMASK1(4)
 253 #define M_DUART_ISR_RX_B            _SB_MAKEMASK1(5)
 254 #define M_DUART_ISR_BRK_B           _SB_MAKEMASK1(6)
 255 #define M_DUART_ISR_IN_B            _SB_MAKEMASK1(7)
 256 #define M_DUART_ISR_ALL_B           _SB_MAKEMASK(4, 4)
 257
 258 /*
 259  * DUART Channel A Interrupt Status Register (Table 10-17)
 260  * DUART Channel B Interrupt Status Register (Table 10-18)
 261  * Register: DUART_ISR_A
 262  * Register: DUART_ISR_B
 263  */
 264
 265 #define M_DUART_ISR_TX              _SB_MAKEMASK1(0)
 266 #define M_DUART_ISR_RX              _SB_MAKEMASK1(1)
 267 #define M_DUART_ISR_BRK             _SB_MAKEMASK1(2)
 268 #define M_DUART_ISR_IN              _SB_MAKEMASK1(3)
 269 #define M_DUART_ISR_ALL             _SB_MAKEMASK(4, 0)
 270 #define M_DUART_ISR_RESERVED        _SB_MAKEMASK(4, 4)
 271
 272 /*
 273  * DUART Interrupt Mask Register (Table 10-19)
 274  * Register: DUART_IMR
 275  */
 276
 277 #define M_DUART_IMR_TX_A            _SB_MAKEMASK1(0)
 278 #define M_DUART_IMR_RX_A            _SB_MAKEMASK1(1)
 279 #define M_DUART_IMR_BRK_A           _SB_MAKEMASK1(2)
 280 #define M_DUART_IMR_IN_A            _SB_MAKEMASK1(3)
 281 #define M_DUART_IMR_ALL_A           _SB_MAKEMASK(4, 0)
 282
 283 #define M_DUART_IMR_TX_B            _SB_MAKEMASK1(4)
 284 #define M_DUART_IMR_RX_B            _SB_MAKEMASK1(5)
 285 #define M_DUART_IMR_BRK_B           _SB_MAKEMASK1(6)
 286 #define M_DUART_IMR_IN_B            _SB_MAKEMASK1(7)
 287 #define M_DUART_IMR_ALL_B           _SB_MAKEMASK(4, 4)
 288
 289 /*
 290  * DUART Channel A Interrupt Mask Register (Table 10-20)
 291  * DUART Channel B Interrupt Mask Register (Table 10-21)
 292  * Register: DUART_IMR_A
 293  * Register: DUART_IMR_B
 294  */
 295
 296 #define M_DUART_IMR_TX              _SB_MAKEMASK1(0)
 297 #define M_DUART_IMR_RX              _SB_MAKEMASK1(1)
 298 #define M_DUART_IMR_BRK             _SB_MAKEMASK1(2)
 299 #define M_DUART_IMR_IN              _SB_MAKEMASK1(3)
 300 #define M_DUART_IMR_ALL             _SB_MAKEMASK(4, 0)
 301 #define M_DUART_IMR_RESERVED        _SB_MAKEMASK(4, 4)
 302
 303
 304 /*
 305  * DUART Output Port Set Register (Table 10-22)
 306  * Register: DUART_SET_OPR
 307  */
 308
 309 #define M_DUART_SET_OPR0            _SB_MAKEMASK1(0)
 310 #define M_DUART_SET_OPR1            _SB_MAKEMASK1(1)
 311 #define M_DUART_SET_OPR2            _SB_MAKEMASK1(2)
 312 #define M_DUART_SET_OPR3            _SB_MAKEMASK1(3)
 313 #define M_DUART_OPSR_RESERVED       _SB_MAKEMASK(4, 4)
 314
 315 /*
 316  * DUART Output Port Clear Register (Table 10-23)
 317  * Register: DUART_CLEAR_OPR
 318  */
 319
 320 #define M_DUART_CLR_OPR0            _SB_MAKEMASK1(0)
 321 #define M_DUART_CLR_OPR1            _SB_MAKEMASK1(1)
 322 #define M_DUART_CLR_OPR2            _SB_MAKEMASK1(2)
 323 #define M_DUART_CLR_OPR3            _SB_MAKEMASK1(3)
 324 #define M_DUART_OPCR_RESERVED       _SB_MAKEMASK(4, 4)
 325
 326 /*
 327  * DUART Output Port RTS Register (Table 10-24)
 328  * Register: DUART_OUT_PORT
 329  */
 330
 331 #define M_DUART_OUT_PIN_SET0        _SB_MAKEMASK1(0)
 332 #define M_DUART_OUT_PIN_SET1        _SB_MAKEMASK1(1)
 333 #define M_DUART_OUT_PIN_CLR0        _SB_MAKEMASK1(2)
 334 #define M_DUART_OUT_PIN_CLR1        _SB_MAKEMASK1(3)
 335 #define M_DUART_OPRR_RESERVED       _SB_MAKEMASK(4, 4)
 336
 337 #define M_DUART_OUT_PIN_SET(chan) \
 338     (chan == 0 ? M_DUART_OUT_PIN_SET0 : M_DUART_OUT_PIN_SET1)
 339 #define M_DUART_OUT_PIN_CLR(chan) \
 340     (chan == 0 ? M_DUART_OUT_PIN_CLR0 : M_DUART_OUT_PIN_CLR1)
 341
 342 #if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
 343 /*
 344  * Full Interrupt Control Register
 345  */
 346
 347 #define S_DUART_SIG_FULL           _SB_MAKE64(0)
 348 #define M_DUART_SIG_FULL           _SB_MAKEMASK(4, S_DUART_SIG_FULL)
 349 #define V_DUART_SIG_FULL(x)        _SB_MAKEVALUE(x, S_DUART_SIG_FULL)
 350 #define G_DUART_SIG_FULL(x)        _SB_GETVALUE(x, S_DUART_SIG_FULL, M_DUART_SIG_FULL)
 351
 352 #define S_DUART_INT_TIME           _SB_MAKE64(4)
 353 #define M_DUART_INT_TIME           _SB_MAKEMASK(4, S_DUART_INT_TIME)
 354 #define V_DUART_INT_TIME(x)        _SB_MAKEVALUE(x, S_DUART_INT_TIME)
 355 #define G_DUART_INT_TIME(x)        _SB_GETVALUE(x, S_DUART_INT_TIME, M_DUART_INT_TIME)
 356 #endif /* 1250 PASS2 || 112x PASS1 || 1480 */
 357
 358
 359 /* ********************************************************************** */
 360
 361
 362 #endif