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1 //========================================================================== |
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2 // |
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3 // io/serial/arm/arm_lpc2xxx_ser.inl |
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4 // |
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5 // ARM LPC2XXX Serial I/O definitions |
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6 // |
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7 //========================================================================== |
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8 //####ECOSGPLCOPYRIGHTBEGIN#### |
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9 // ------------------------------------------- |
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10 // This file is part of eCos, the Embedded Configurable Operating System. |
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
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12 // Copyright (C) 2004 eCosCentric Limited |
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13 // |
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14 // eCos is free software; you can redistribute it and/or modify it under |
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15 // the terms of the GNU General Public License as published by the Free |
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16 // Software Foundation; either version 2 or (at your option) any later version. |
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17 // |
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
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19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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21 // for more details. |
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22 // |
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23 // You should have received a copy of the GNU General Public License along |
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24 // with eCos; if not, write to the Free Software Foundation, Inc., |
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25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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26 // |
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27 // As a special exception, if other files instantiate templates or use macros |
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28 // or inline functions from this file, or you compile this file and link it |
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29 // with other works to produce a work based on this file, this file does not |
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30 // by itself cause the resulting work to be covered by the GNU General Public |
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31 // License. However the source code for this file must still be made available |
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32 // in accordance with section (3) of the GNU General Public License. |
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33 // |
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34 // This exception does not invalidate any other reasons why a work based on |
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35 // this file might be covered by the GNU General Public License. |
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36 // ------------------------------------------- |
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37 //####ECOSGPLCOPYRIGHTEND#### |
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38 //========================================================================== |
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39 //#####DESCRIPTIONBEGIN#### |
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40 // |
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41 // Author(s): jani |
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42 // Contributors: gthomas, jlarmour |
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43 // Date: 1999-02-04 |
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44 // Purpose: LPC2XXX Serial I/O module (interrupt driven version) |
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45 // Description: |
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46 // |
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47 //####DESCRIPTIONEND#### |
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48 // |
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49 //========================================================================== |
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50 |
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51 #include <cyg/hal/hal_intr.h> |
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52 |
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53 //----------------------------------------------------------------------------- |
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54 // Baud rate specification |
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55 |
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56 static unsigned int select_baud[] = { |
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57 9999, // Unused |
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58 50, |
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59 75, |
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60 110, |
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61 134.5, |
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62 150, |
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63 200, |
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64 300, |
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65 600, |
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66 1200, |
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67 1800, |
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68 2400, |
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69 3600, |
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70 4800, |
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71 7200, |
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72 9600, |
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73 14400, |
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74 19200, |
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75 38400, |
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76 57600, |
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77 115200, |
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78 230400 |
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79 }; |
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80 |
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81 // we need dynamically generated divider values because they depend on the |
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82 // value of pclk which in turn is changeable |
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83 |
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84 externC int cyg_var_baud_generator(int baud); |
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85 #define CYG_IO_SERIAL_GENERIC_16X5X_BAUD_GENERATOR \ |
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86 CYG_HAL_ARM_LPC2XXX_BAUD_GENERATOR |
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87 |
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88 #ifdef CYGPKG_IO_SERIAL_ARM_LPC2XXX_SERIAL0 |
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89 static pc_serial_info lpc2xxx_serial_info0 = |
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90 { CYGARC_HAL_LPC2XXX_REG_UART0_BASE, |
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91 CYGNUM_HAL_INTERRUPT_UART0 |
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92 }; |
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93 |
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94 #if CYGNUM_IO_SERIAL_ARM_LPC2XXX_SERIAL0_BUFSIZE > 0 |
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95 static unsigned char |
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96 lpc2xxx_serial_out_buf0[CYGNUM_IO_SERIAL_ARM_LPC2XXX_SERIAL0_BUFSIZE]; |
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97 static unsigned char |
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98 lpc2xxx_serial_in_buf0[CYGNUM_IO_SERIAL_ARM_LPC2XXX_SERIAL0_BUFSIZE]; |
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99 |
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100 static SERIAL_CHANNEL_USING_INTERRUPTS(lpc2xxx_serial_channel0, |
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101 pc_serial_funs, |
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102 lpc2xxx_serial_info0, |
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103 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_LPC2XXX_SERIAL0_BAUD), |
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104 CYG_SERIAL_STOP_DEFAULT, |
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105 CYG_SERIAL_PARITY_DEFAULT, |
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106 CYG_SERIAL_WORD_LENGTH_DEFAULT, |
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107 CYG_SERIAL_FLAGS_DEFAULT, |
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108 &lpc2xxx_serial_out_buf0[0], |
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109 sizeof(lpc2xxx_serial_out_buf0), |
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110 &lpc2xxx_serial_in_buf0[0], |
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111 sizeof(lpc2xxx_serial_in_buf0) |
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112 ); |
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113 #else |
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114 static SERIAL_CHANNEL(lpc2xxx_serial_channel0, |
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115 pc_serial_funs, |
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116 lpc2xxx_serial_info0, |
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117 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_LPC2XXX_SERIAL0_BAUD), |
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118 CYG_SERIAL_STOP_DEFAULT, |
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119 CYG_SERIAL_PARITY_DEFAULT, |
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120 CYG_SERIAL_WORD_LENGTH_DEFAULT, |
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121 CYG_SERIAL_FLAGS_DEFAULT |
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122 ); |
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123 #endif |
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124 |
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125 DEVTAB_ENTRY(lpc2xxx_serial_io0, |
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126 CYGDAT_IO_SERIAL_ARM_LPC2XXX_SERIAL0_NAME, |
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127 0, // Does not depend on a lower |
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128 // level interface |
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129 &cyg_io_serial_devio, |
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130 pc_serial_init, |
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131 pc_serial_lookup, // Serial driver may need initializing |
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132 &lpc2xxx_serial_channel0 |
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133 ); |
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134 #endif // CYGPKG_IO_SERIAL_ARM_LPC2XXX_SERIAL0 |
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135 |
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136 #ifdef CYGPKG_IO_SERIAL_ARM_LPC2XXX_SERIAL1 |
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137 static pc_serial_info lpc2xxx_serial_info1 = |
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138 { CYGARC_HAL_LPC2XXX_REG_UART1_BASE, |
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139 CYGNUM_HAL_INTERRUPT_UART1 |
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140 }; |
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141 #if CYGNUM_IO_SERIAL_ARM_LPC2XXX_SERIAL1_BUFSIZE > 0 |
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142 static unsigned char |
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143 lpc2xxx_serial_out_buf1[CYGNUM_IO_SERIAL_ARM_LPC2XXX_SERIAL1_BUFSIZE]; |
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144 static unsigned char |
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145 lpc2xxx_serial_in_buf1[CYGNUM_IO_SERIAL_ARM_LPC2XXX_SERIAL1_BUFSIZE]; |
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146 |
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147 static SERIAL_CHANNEL_USING_INTERRUPTS(lpc2xxx_serial_channel1, |
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148 pc_serial_funs, |
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149 lpc2xxx_serial_info1, |
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150 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_LPC2XXX_SERIAL1_BAUD), |
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151 CYG_SERIAL_STOP_DEFAULT, |
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152 CYG_SERIAL_PARITY_DEFAULT, |
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153 CYG_SERIAL_WORD_LENGTH_DEFAULT, |
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154 CYG_SERIAL_FLAGS_DEFAULT, |
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155 &lpc2xxx_serial_out_buf1[0], |
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156 sizeof(lpc2xxx_serial_out_buf1), |
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157 &lpc2xxx_serial_in_buf1[0], |
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158 sizeof(lpc2xxx_serial_in_buf1) |
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159 ); |
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160 #else |
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161 static SERIAL_CHANNEL(lpc2xxx_serial_channel1, |
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162 pc_serial_funs, |
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163 lpc2xxx_serial_info1, |
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164 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_LPC2XXX_SERIAL1_BAUD), |
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165 CYG_SERIAL_STOP_DEFAULT, |
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166 CYG_SERIAL_PARITY_DEFAULT, |
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167 CYG_SERIAL_WORD_LENGTH_DEFAULT, |
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168 CYG_SERIAL_FLAGS_DEFAULT |
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169 ); |
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170 #endif |
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171 |
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172 DEVTAB_ENTRY(lpc2xxx_serial_io1, |
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173 CYGDAT_IO_SERIAL_ARM_LPC2XXX_SERIAL1_NAME, |
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174 0, // Does not depend on a lower |
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175 // level interface |
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176 &cyg_io_serial_devio, |
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177 pc_serial_init, |
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178 pc_serial_lookup, // Serial driver may need initializing |
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179 &lpc2xxx_serial_channel1 |
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180 ); |
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181 #endif // CYGPKG_IO_SERIAL_ARM_LPC2XXX_SERIAL1 |
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182 |
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183 // EOF arm_lpc2xxx_ser.inl |
