1 | /*************************************************************************** |
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2 | * |
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3 | * $Header$ |
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4 | * |
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5 | * MODULE DESCRIPTION: |
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6 | * This module implements the RTEMS drivers for the PC serial ports |
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7 | * as /dev/ttyS1 for COM1 and /dev/ttyS2 as COM2. If one of the ports |
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8 | * is used as the console, this driver would fail to initialize. |
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9 | * |
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10 | * This code was based on the console driver. It is based on the |
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11 | * current termios framework. This is just a shell around the |
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12 | * termios support. |
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13 | * |
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14 | * by: Rosimildo da Silva: |
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15 | * rdasilva@connecttel.com |
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16 | * http://www.connecttel.com |
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17 | * |
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18 | * MODIFICATION/HISTORY: |
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19 | * |
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20 | * $Log$ |
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21 | * Revision 1.8 2005/04/18 17:21:58 jennifer |
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22 | * 2005-04-18 Eric Valette <eric.valette@free.fr> |
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23 | * |
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24 | * * clock/ckinit.c, console/console.c, console/ps2_mouse.c, |
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25 | * console/serial_mouse.c, timer/timer.c: Added parameter to irq handler |
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26 | * |
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27 | * Revision 1.7 2004/04/21 16:01:33 ralf |
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28 | * Remove duplicate white lines. |
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29 | * |
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30 | * Revision 1.6 2004/04/21 10:42:44 ralf |
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31 | * Remove stray white spaces. |
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32 | * |
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33 | * Revision 1.5 2000/12/05 16:37:38 joel |
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34 | * 2000-12-01 Joel Sherrill <joel@OARcorp.com> |
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35 | * |
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36 | * * pc386/console/console.c, pc386/console/serial_mouse.c, |
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37 | * pc386/console/vgainit.c, shared/comm/tty_drv.c: Remove warnings. |
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38 | * |
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39 | * Revision 1.4 2000/10/23 14:10:25 joel |
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40 | * 2000-10-23 Joel Sherrill <joel@OARcorp.com> |
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41 | * |
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42 | * * console/serial_mouse.c: Fixed typos introduced by removal of CR/LF. |
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43 | * |
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44 | * Revision 1.3 2000/10/20 16:01:13 joel |
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45 | * 2000-10-20 Rosimildo da Silva <rdasilva@connecttel.com> |
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46 | * |
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47 | * * console/serial_mouse.c: Added support for changing serial parameters. |
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48 | * |
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49 | ****************************************************************************/ |
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50 | |
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51 | #include <stdio.h> |
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52 | #include <stdlib.h> |
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53 | #include <assert.h> |
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54 | |
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55 | #include <bsp.h> |
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56 | #include <bsp/irq.h> |
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57 | #include <rtems/libio.h> |
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58 | #include <termios.h> |
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59 | #include <uart.h> |
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60 | #include <libcpu/cpuModel.h> |
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61 | |
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62 | int BSP_poll_read(int); |
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63 | |
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64 | #include <rtems/mw_uid.h> |
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65 | #include "serial_mouse.h" |
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66 | #include "mouse_parser.h" |
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67 | |
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68 | /* Internal routines */ |
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69 | static int serial_mouse_conSetAttr( int minor, const struct termios *t); |
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70 | static void isr_on(const rtems_irq_connect_data *); |
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71 | static void isr_off(const rtems_irq_connect_data *); |
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72 | static int isr_is_on(const rtems_irq_connect_data *); |
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73 | |
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74 | extern BSP_polling_getchar_function_type BSP_poll_char; |
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75 | extern int BSPConsolePort; |
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76 | |
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77 | /* Select Default to be COM1 */ |
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78 | #if !defined( SERIAL_MOUSE_COM1 ) && !defined( SERIAL_MOUSE_COM2 ) |
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79 | #define SERIAL_MOUSE_COM1 1 |
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80 | #endif |
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81 | |
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82 | /* select which serial port the mouse is connected to */ |
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83 | #ifdef SERIAL_MOUSE_COM1 |
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84 | #define BSP_UART_PORT BSP_UART_COM1 |
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85 | #define BSP_UART_IRQ BSP_UART_COM1_IRQ |
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86 | #define BSP_ISR_FUNC BSP_uart_termios_isr_com1 |
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87 | #define BSP_WRITE_FUNC BSP_uart_termios_write_com1 |
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88 | #endif |
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89 | |
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90 | #ifdef SERIAL_MOUSE_COM2 |
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91 | #define BSP_UART_PORT BSP_UART_COM2 |
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92 | #define BSP_UART_IRQ BSP_UART_COM2_IRQ |
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93 | #define BSP_ISR_FUNC BSP_uart_termios_isr_com2 |
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94 | #define BSP_WRITE_FUNC BSP_uart_termios_write_com2 |
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95 | #endif |
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96 | |
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97 | /* |
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98 | * Interrupt structure for serial_mouse |
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99 | */ |
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100 | static rtems_irq_connect_data serial_mouse_isr_data = |
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101 | { |
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102 | BSP_UART_IRQ, |
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103 | BSP_ISR_FUNC, |
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104 | 0, |
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105 | isr_on, |
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106 | isr_off, |
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107 | isr_is_on}; |
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108 | |
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109 | static void isr_on(const rtems_irq_connect_data *unused) |
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110 | { |
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111 | return; |
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112 | } |
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113 | |
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114 | static void isr_off(const rtems_irq_connect_data *unused) |
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115 | { |
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116 | return; |
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117 | } |
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118 | |
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119 | static int isr_is_on(const rtems_irq_connect_data *irq) |
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120 | { |
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121 | return BSP_irq_enabled_at_i8259s(irq->name); |
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122 | } |
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123 | |
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124 | void serial_mouse_reserve_resources(rtems_configuration_table *conf) |
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125 | { |
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126 | rtems_termios_reserve_resources(conf, 1); |
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127 | return; |
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128 | } |
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129 | |
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130 | /* |
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131 | * Serial Mouse - device driver INITIALIZE entry point. |
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132 | */ |
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133 | rtems_device_driver |
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134 | serial_mouse_initialize(rtems_device_major_number major, |
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135 | rtems_device_minor_number minor, |
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136 | void *arg) |
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137 | { |
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138 | rtems_status_code status; |
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139 | |
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140 | /* Check if this port is not been used as console */ |
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141 | if( BSPConsolePort == BSP_UART_PORT ) |
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142 | { |
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143 | status = -1; |
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144 | printk("SERIAL MOUSE: port selected as console.( %d )\n", BSP_UART_PORT ); |
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145 | rtems_fatal_error_occurred( status ); |
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146 | } |
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147 | |
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148 | /* |
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149 | * Set up TERMIOS |
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150 | */ |
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151 | rtems_termios_initialize(); |
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152 | |
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153 | /* |
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154 | * Do device-specific initialization |
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155 | */ |
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156 | /* 9600-8-N-1, without hardware flow control */ |
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157 | BSP_uart_init( BSP_UART_PORT, 1200, CHR_8_BITS, 0, 0, 0 ); |
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158 | status = BSP_install_rtems_irq_handler( &serial_mouse_isr_data ); |
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159 | if( !status ) |
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160 | { |
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161 | printk("Error installing serial mouse interrupt handler!\n"); |
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162 | rtems_fatal_error_occurred(status); |
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163 | } |
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164 | /* |
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165 | * Register the device |
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166 | */ |
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167 | status = rtems_io_register_name ("/dev/mouse", major, 0); |
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168 | if (status != RTEMS_SUCCESSFUL) |
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169 | { |
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170 | printk("Error registering /dev/mouse device!\n"); |
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171 | rtems_fatal_error_occurred (status); |
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172 | } |
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173 | printk("Device: /dev/mouse on COM%d -- ok \n", BSP_UART_PORT ); |
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174 | return RTEMS_SUCCESSFUL; |
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175 | } /* tty_initialize */ |
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176 | |
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177 | static int serial_mouse_last_close(int major, int minor, void *arg) |
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178 | { |
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179 | BSP_remove_rtems_irq_handler( &serial_mouse_isr_data ); |
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180 | return 0; |
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181 | } |
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182 | |
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183 | /* |
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184 | * serial_mouse - device driver OPEN entry point |
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185 | */ |
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186 | rtems_device_driver |
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187 | serial_mouse_open(rtems_device_major_number major, |
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188 | rtems_device_minor_number minor, |
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189 | void *arg) |
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190 | { |
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191 | rtems_status_code status; |
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192 | static rtems_termios_callbacks cb = |
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193 | { |
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194 | NULL, /* firstOpen */ |
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195 | serial_mouse_last_close, /* lastClose */ |
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196 | NULL, /* poll read */ |
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197 | BSP_WRITE_FUNC, /* write */ |
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198 | serial_mouse_conSetAttr, /* setAttributes */ |
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199 | NULL, /* stopRemoteTx */ |
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200 | NULL, /* startRemoteTx */ |
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201 | 1 /* outputUsesInterrupts */ |
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202 | }; |
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203 | |
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204 | status = rtems_termios_open( major, minor, arg, &cb ); |
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205 | if(status != RTEMS_SUCCESSFUL) |
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206 | { |
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207 | printk("Error openning serial_mouse device\n"); |
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208 | return status; |
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209 | } |
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210 | |
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211 | /* |
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212 | * Pass data area info down to driver |
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213 | */ |
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214 | BSP_uart_termios_set( BSP_UART_PORT, |
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215 | ((rtems_libio_open_close_args_t *)arg)->iop->data1 ); |
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216 | /* Enable interrupts on channel */ |
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217 | BSP_uart_intr_ctrl( BSP_UART_PORT, BSP_UART_INTR_CTRL_TERMIOS); |
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218 | return RTEMS_SUCCESSFUL; |
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219 | } |
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220 | |
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221 | /* |
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222 | * TTY - device driver CLOSE entry point |
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223 | */ |
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224 | rtems_device_driver |
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225 | serial_mouse_close(rtems_device_major_number major, |
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226 | rtems_device_minor_number minor, |
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227 | void *arg) |
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228 | { |
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229 | |
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230 | return (rtems_termios_close (arg)); |
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231 | |
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232 | } /* tty_close */ |
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233 | |
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234 | /* |
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235 | * TTY device driver READ entry point. |
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236 | * Read characters from the tty device. |
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237 | */ |
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238 | rtems_device_driver |
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239 | serial_mouse_read(rtems_device_major_number major, |
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240 | rtems_device_minor_number minor, |
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241 | void *arg) |
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242 | { |
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243 | return rtems_termios_read (arg); |
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244 | } /* tty_read */ |
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245 | |
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246 | /* |
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247 | * TTY device driver WRITE entry point. |
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248 | * Write characters to the tty device. |
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249 | */ |
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250 | rtems_device_driver |
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251 | serial_mouse_write(rtems_device_major_number major, |
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252 | rtems_device_minor_number minor, |
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253 | void * arg) |
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254 | { |
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255 | return rtems_termios_write (arg); |
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256 | |
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257 | } /* tty_write */ |
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258 | |
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259 | /* |
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260 | * Handle ioctl request. This is a generic internal |
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261 | * routine to handle both devices. |
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262 | */ |
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263 | static rtems_device_driver serial_mouse_control_internal( int port, void *arg ) |
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264 | { |
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265 | rtems_libio_ioctl_args_t *args = arg; |
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266 | switch( args->command ) |
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267 | { |
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268 | default: |
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269 | return rtems_termios_ioctl (arg); |
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270 | break; |
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271 | |
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272 | case MW_UID_REGISTER_DEVICE: |
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273 | printk( "SerialMouse: reg=%s\n", args->buffer ); |
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274 | register_mou_msg_queue( args->buffer, BSP_UART_PORT ); |
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275 | break; |
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276 | |
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277 | case MW_UID_UNREGISTER_DEVICE: |
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278 | unregister_mou_msg_queue( BSP_UART_PORT ); |
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279 | break; |
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280 | |
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281 | } |
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282 | args->ioctl_return = 0; |
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283 | return RTEMS_SUCCESSFUL; |
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284 | } |
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285 | |
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286 | /* |
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287 | * Handle ioctl request for ttyS1. |
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288 | */ |
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289 | rtems_device_driver |
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290 | serial_mouse_control(rtems_device_major_number major, |
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291 | rtems_device_minor_number minor, |
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292 | void * arg |
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293 | ) |
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294 | { |
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295 | return serial_mouse_control_internal( BSP_UART_PORT, arg ); |
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296 | } |
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297 | |
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298 | static int |
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299 | conSetAttr(int port, int minor, const struct termios *t) |
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300 | { |
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301 | unsigned long baud, databits, parity, stopbits; |
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302 | |
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303 | switch (t->c_cflag & CBAUD) |
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304 | { |
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305 | case B50: |
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306 | baud = 50; |
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307 | break; |
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308 | case B75: |
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309 | baud = 75; |
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310 | break; |
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311 | case B110: |
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312 | baud = 110; |
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313 | break; |
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314 | case B134: |
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315 | baud = 134; |
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316 | break; |
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317 | case B150: |
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318 | baud = 150; |
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319 | break; |
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320 | case B200: |
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321 | baud = 200; |
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322 | break; |
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323 | case B300: |
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324 | baud = 300; |
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325 | break; |
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326 | case B600: |
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327 | baud = 600; |
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328 | break; |
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329 | case B1200: |
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330 | baud = 1200; |
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331 | break; |
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332 | case B1800: |
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333 | baud = 1800; |
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334 | break; |
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335 | case B2400: |
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336 | baud = 2400; |
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337 | break; |
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338 | case B4800: |
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339 | baud = 4800; |
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340 | break; |
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341 | case B9600: |
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342 | baud = 9600; |
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343 | break; |
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344 | case B19200: |
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345 | baud = 19200; |
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346 | break; |
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347 | case B38400: |
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348 | baud = 38400; |
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349 | break; |
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350 | case B57600: |
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351 | baud = 57600; |
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352 | break; |
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353 | case B115200: |
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354 | baud = 115200; |
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355 | break; |
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356 | default: |
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357 | rtems_fatal_error_occurred (RTEMS_INTERNAL_ERROR); |
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358 | return 0; |
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359 | } |
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360 | |
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361 | if (t->c_cflag & PARENB) { |
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362 | /* Parity is enabled */ |
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363 | if (t->c_cflag & PARODD) { |
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364 | /* Parity is odd */ |
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365 | parity = PEN; |
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366 | } |
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367 | else { |
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368 | /* Parity is even */ |
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369 | parity = PEN | EPS; |
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370 | } |
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371 | } |
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372 | else { |
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373 | /* No parity */ |
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374 | parity = 0; |
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375 | } |
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376 | |
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377 | switch (t->c_cflag & CSIZE) { |
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378 | case CS5: databits = CHR_5_BITS; break; |
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379 | case CS6: databits = CHR_6_BITS; break; |
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380 | case CS7: databits = CHR_7_BITS; break; |
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381 | default: /* just to avoid warnings -- all cases are covered. */ |
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382 | case CS8: databits = CHR_8_BITS; break; |
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383 | } |
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384 | |
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385 | if (t->c_cflag & CSTOPB) { |
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386 | /* 2 stop bits */ |
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387 | stopbits = STB; |
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388 | } |
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389 | else { |
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390 | /* 1 stop bit */ |
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391 | stopbits = 0; |
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392 | } |
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393 | printk("Mouse baud, port=%X, baud=%d\n", port, baud ); |
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394 | BSP_uart_set_attributes(port, baud, databits, parity, stopbits); |
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395 | |
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396 | return 0; |
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397 | } |
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398 | |
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399 | /* |
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400 | * Handle ioctl request for ttyS2. |
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401 | */ |
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402 | static int |
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403 | serial_mouse_conSetAttr( int minor, const struct termios *t) |
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404 | { |
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405 | return conSetAttr( BSP_UART_PORT, minor, t ); |
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406 | } |
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