FreeCalypso > hg > fc-magnetite
annotate src/cs/drivers/drv_app/r2d/lcds/E_Sample/lcd_if.c @ 702:9394305d4ff5 default tip
etm_audio.c: fix off-by-one error in auw of FIR coefficients
This fix was already made in FC Tourmaline a while back, but it is also
the kind of bugfix that deserves to be backported to Magnetite and
Selenite as well.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 31 Oct 2022 00:14:44 +0000 |
parents | 945cf7f506b2 |
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rev | line source |
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1 /****************************************************************************** |
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2 * WIRELESS COMMUNICATION SYSTEM DEVELOPMENT |
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3 * |
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4 * (C) 2002 Texas Instruments France. All rights reserved |
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5 * |
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6 * Author : Philippe MARTINEZ |
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7 * |
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8 * |
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9 * Important Note |
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10 * -------------- |
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11 * |
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12 * This S/W is a preliminary version. It contains information on a product |
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13 * under development and is issued for evaluation purposes only. Features |
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14 * characteristics, data and other information are subject to change. |
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15 * |
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16 * The S/W is furnished under Non Disclosure Agreement and may be used or |
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17 * copied only in accordance with the terms of the agreement. It is an offence |
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18 * to copy the software in any way except as specifically set out in the |
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19 * agreement. No part of this document may be reproduced or transmitted in any |
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20 * form or by any means, electronic or mechanical, including photocopying and |
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21 * recording, for any purpose without the express written permission of Texas |
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22 * Instruments Inc. |
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23 * |
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24 ****************************************************************************** |
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25 * |
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26 * FILE NAME: lcd_if.c |
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27 * |
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28 * |
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29 * PURPOSE: LCD Interface driver compiled in 16-bits mode (thumb mode) |
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30 * |
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31 * |
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32 * FILE REFERENCES: |
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33 * |
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34 * Name IO Description |
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35 * ------------- -- --------------------------------------------- |
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36 * |
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37 * |
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38 * |
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39 * EXTERNAL VARIABLES: |
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40 * |
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41 * Source: |
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42 * |
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43 * Name Type IO Description |
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44 * ------------- --------------- -- ------------------------------ |
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45 * |
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46 * |
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47 * |
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48 * EXTERNAL REFERENCES: |
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49 * |
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50 * Name Description |
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51 * ------------------ ------------------------------------------------------- |
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52 * |
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53 * |
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54 * |
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55 * ABNORMAL TERMINATION CONDITIONS, ERROR AND WARNING MESSAGES: |
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56 * |
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57 * |
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58 * |
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59 * ASSUMPTION, CONSTRAINTS, RESTRICTIONS: |
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60 * |
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61 * |
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62 * |
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63 * NOTES: |
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64 * |
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65 * |
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66 * |
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67 * REQUIREMENTS/FUNCTIONAL SPECIFICATION REFERENCES: |
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68 * |
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69 * |
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70 * |
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71 * |
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72 * DEVELOPMENT HISTORY: |
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73 * |
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74 * Date Name(s) Version Description |
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75 * ----------- -------------- ------- ------------------------------------- |
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76 * 30-Oct-2002 Philippe MARTINEZ 0.0.1 First implementation |
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77 * |
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78 * ALGORITHM: |
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79 * |
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80 * |
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81 *****************************************************************************/ |
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82 |
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83 #include "r2d/lcds/e_sample/lcd_if.h" |
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84 #include "memif/mem.h" |
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85 |
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86 |
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87 /**************************************************************************** |
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88 * GLOBAL VARIABLES |
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89 ***************************************************************************/ |
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90 |
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91 /* internal structure instance */ |
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92 |
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93 T_LCD_IF_INTERNAL d_lcd_if_internal; |
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94 |
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95 /**************************************************************************** |
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96 * INTERNAL FUNCTION PROTOTYPE |
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97 ***************************************************************************/ |
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98 |
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99 void f_lcd_if_set_cs_and_data_type( E_LCD_IF_CS d_cs, |
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100 E_LCD_IF_DATA_TYPE d_type, |
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101 E_LCD_IF_DATA_ACCESS d_access ); |
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102 |
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103 static E_LCD_IF_CALLBACK_RET f_lcd_if_dummy_callback( void ); |
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104 |
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105 |
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106 |
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107 /****************************************************************************** |
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108 * |
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109 * FUNCTION NAME: f_lcd_if_init |
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110 * |
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111 * Initialize the internal initialization structure. |
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112 * |
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113 * |
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114 * ARGUMENT LIST: |
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115 * |
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116 * Argument Type IO Description |
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117 * ------------ ------------------- -- --------------------------------- |
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118 * d_cs E_LCD_IF_CS I LCD Controller Chip select |
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119 * p_init T_LCD_IF_INIT* I Pointer on the external initialization |
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120 * structure |
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121 * RETURN VALUE: None |
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122 * |
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123 *****************************************************************************/ |
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124 |
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125 void f_lcd_if_init( E_LCD_IF_CS d_cs, T_LCD_IF_INIT *p_init ) |
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126 { |
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127 |
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128 /* reset internal state to IDLE */ |
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129 |
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130 d_lcd_if_internal.d_interrupt_state = C_LCD_IF_IDLE; |
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131 |
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132 /* What is the chip select value ? */ |
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133 |
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134 if( d_cs == C_LCD_IF_CS_NOT_SELECTED ) |
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135 { |
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136 /* not a valid CS */ |
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137 return; |
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138 } // End if |
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139 |
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140 /* update current struct pointer */ |
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141 |
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142 //d_lcd_if_internal.p_current_struct = &d_lcd_if_internal.d_cs_struct[d_cs]; |
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143 |
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144 /* Copy the LCD manager init structure to the internal structure */ |
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145 /* and initialize the internal structure */ |
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146 |
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147 d_lcd_if_internal.d_cs_struct[d_cs].d_mode = p_init->d_mode; |
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148 d_lcd_if_internal.d_cs_struct[d_cs].b_flip_bytes = p_init->b_flip_bytes; |
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149 d_lcd_if_internal.d_cs_struct[d_cs].d_isll = p_init->d_isll; |
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150 d_lcd_if_internal.d_cs_struct[d_cs].d_tx.d_clock_divider = p_init->d_tx_init.d_clock_divider; |
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151 d_lcd_if_internal.d_cs_struct[d_cs].d_tx.p_callback = f_lcd_if_dummy_callback; |
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152 d_lcd_if_internal.d_cs_struct[d_cs].d_tx.p_buffer = (SYS_UWORD16*) NULL; |
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153 d_lcd_if_internal.d_cs_struct[d_cs].d_tx.d_buffer_size = 0; |
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154 d_lcd_if_internal.d_cs_struct[d_cs].d_rx.d_clock_divider = p_init->d_rx_init.d_clock_divider; |
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155 d_lcd_if_internal.d_cs_struct[d_cs].d_rx.d_dummy_cycles = p_init->d_rx_init.d_dummy_cycles; |
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156 |
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157 /* compose the CNTL_REG and LCD_CNTL_REG bit fields */ |
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158 |
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159 d_lcd_if_internal.d_cs_struct[d_cs].d_cntl_reg = |
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160 (C_LCD_IF_CNTL_REG_SOFT_NRST_INIT << C_LCD_IF_CNTL_REG_SOFT_NRST_POS) | |
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161 (C_LCD_IF_CNTL_REG_CLOCK13_EN_INIT << C_LCD_IF_CNTL_REG_CLOCK13_EN_POS) | |
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162 (d_lcd_if_internal.d_cs_struct[d_cs].d_tx.d_clock_divider << C_LCD_IF_CNTL_REG_TX_CLOCK_DIV_POS) | |
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163 (d_lcd_if_internal.d_cs_struct[d_cs].d_rx.d_clock_divider << C_LCD_IF_CNTL_REG_RX_CLOCK_DIV_POS) | |
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164 (C_LCD_IF_CNTL_REG_FIFO_EMPTY_IT_EN_INIT << C_LCD_IF_CNTL_REG_FIFO_EMPTY_IT_EN_POS) | |
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165 (C_LCD_IF_CNTL_REG_LCD_READ_EVENT_IT_EN_INIT << C_LCD_IF_CNTL_REG_LCD_READ_EVENT_IT_EN_POS) | |
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166 (C_LCD_IF_CNTL_REG_DMA_EN_INIT << C_LCD_IF_CNTL_REG_DMA_EN_POS) | |
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167 (d_lcd_if_internal.d_cs_struct[d_cs].d_mode << C_LCD_IF_CNTL_REG_MODE_POS) | |
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168 (d_lcd_if_internal.d_cs_struct[d_cs].b_flip_bytes << C_LCD_IF_CNTL_REG_FLIP_BYTES_POS) | |
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169 (C_LCD_IF_CNTL_REG_SUSPEND_EN_INIT << C_LCD_IF_CNTL_REG_SUSPEND_EN_POS) | |
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170 (C_LCD_IF_CNTL_REG_MIN_FRAME_SIZE_INIT << C_LCD_IF_CNTL_REG_MIN_FRAME_SIZE_POS) | |
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171 (d_lcd_if_internal.d_cs_struct[d_cs].d_rx.d_dummy_cycles << C_LCD_IF_CNTL_REG_N_DUMMY_POS); |
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172 |
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173 d_lcd_if_internal.d_cs_struct[d_cs].d_lcd_cntl_reg = |
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174 (d_cs << C_LCD_IF_LCD_CNTL_REG_LCD_NCS0_POS) | |
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175 (C_LCD_IF_LCD_CNTL_REG_LCD_RS_INIT << C_LCD_IF_LCD_CNTL_REG_LCD_RS_POS) | |
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176 (C_LCD_IF_LCD_CNTL_REG_LCD_START_READ_INIT << C_LCD_IF_LCD_CNTL_REG_LCD_START_READ_POS) | |
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177 (C_LCD_IF_LCD_CNTL_REG_LCD_NRESET_INIT << C_LCD_IF_LCD_CNTL_REG_LCD_NRESET_POS) | |
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178 (~d_cs << C_LCD_IF_LCD_CNTL_REG_LCD_NCS1_POS); |
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179 |
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180 /* Force Switch to Chip select */ |
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181 |
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182 d_lcd_if_internal.d_current_cs = C_LCD_IF_CS_NOT_SELECTED; |
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183 |
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184 /* Switch to chip select */ |
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185 /* Set data type and access to instruction (arbitrary) and write */ |
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186 |
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187 f_lcd_if_set_cs_and_data_type( d_cs, C_LCD_IF_INSTRUCTION, C_LCD_IF_WRITE ); |
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188 |
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189 } /* f_lcd_if_init */ |
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190 |
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191 /****************************************************************************** |
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192 * |
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193 * FUNCTION NAME: f_lcd_if_reset |
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194 * |
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195 * Reset the LCD Interface Hardware. |
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196 * |
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197 * |
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198 * ARGUMENT LIST: |
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199 * |
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200 * Argument Type IO Description |
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201 * ------------ ------------------- -- --------------------------------- |
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202 * None |
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203 * |
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204 * RETURN VALUE: None |
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205 * |
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206 *****************************************************************************/ |
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207 |
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208 void f_lcd_if_reset( void ) |
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209 { |
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210 /* Reset CNTL_REG:SOFT_NRST bit */ |
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211 |
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212 (*(volatile SYS_UWORD16*) C_LCD_IF_CNTL_REG) &= ~(C_LCD_IF_CNTL_REG_SOFT_NRST_MASK); |
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213 |
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214 /* loop to wait for CNTL_REG:SOFT_NRST bit return back to 1 */ |
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215 |
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216 F_LCD_IF_WAIT_LCD_IF_RESET; |
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217 |
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218 } /* f_lcd_if_reset */ |
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219 |
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220 /****************************************************************************** |
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221 * |
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222 * FUNCTION NAME: f_lcd_if_get_version |
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223 * |
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224 * Return the LCD Interface driver version. |
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225 * |
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226 * |
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227 * ARGUMENT LIST: |
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228 * |
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229 * Argument Type IO Description |
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230 * ------------ ------------------- -- --------------------------------- |
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231 * None |
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232 * |
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233 * RETURN VALUE: SYS_UWORD16 : Version number. |
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234 * |
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235 *****************************************************************************/ |
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236 |
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237 SYS_UWORD16 f_lcd_if_get_version( void ) |
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238 { |
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239 return ((SYS_UWORD16) C_LCD_IF_DRIVER_VERSION); |
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240 } /* f_lcd_if_get_version */ |
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241 |
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242 /****************************************************************************** |
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243 * |
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244 * FUNCTION NAME: f_lcd_if_reset_lcd_controller |
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245 * |
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246 * Resets the LCD Controller hardware. |
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247 * |
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248 * |
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249 * ARGUMENT LIST: |
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250 * |
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251 * Argument Type IO Description |
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252 * ------------ ------------------- -- --------------------------------- |
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253 * d_cs E_LCD_IF_CS I LCD Controller Chip select |
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254 * d_reset E_LCD_IF_RESET I ON => reset state |
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255 * |
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256 * RETURN VALUE: None |
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257 * |
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258 *****************************************************************************/ |
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259 |
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260 void f_lcd_if_reset_lcd_controller( E_LCD_IF_CS d_cs, |
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261 E_LCD_IF_RESET d_reset ) |
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262 { |
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263 /* Switch to chip select */ |
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264 /* Set data type and access to instruction (arbitrary) and write */ |
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265 |
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266 f_lcd_if_set_cs_and_data_type( d_cs, C_LCD_IF_INSTRUCTION, C_LCD_IF_WRITE ); |
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267 |
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268 /* Apply the LCD Controller reset on the LCD Interface line (LCD_CNTL_REG:LCD_nRESET bit) */ |
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269 if( d_reset == C_LCD_IF_OFF) |
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270 { |
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271 (*(volatile SYS_UWORD16*) C_LCD_IF_LCD_CNTL_REG) |= (d_reset << C_LCD_IF_LCD_CNTL_REG_LCD_NRESET_POS); |
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272 } |
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273 else |
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274 { |
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275 (*(volatile SYS_UWORD16*) C_LCD_IF_LCD_CNTL_REG) &= ~(d_reset << C_LCD_IF_LCD_CNTL_REG_LCD_NRESET_POS); |
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276 } // End if |
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277 |
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278 } /* f_lcd_if_reset_lcd_controller */ |
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279 |
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280 /****************************************************************************** |
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281 * |
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282 * FUNCTION NAME: f_lcd_if_clock |
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283 * |
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284 * Enable/disable the LCD Interface 13 MHx clock in. |
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285 * |
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286 * |
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287 * ARGUMENT LIST: |
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288 * |
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289 * Argument Type IO Description |
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290 * ------------ ------------------- -- --------------------------------- |
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291 * d_clock_switch E_LCD_IF_CLOCK I CLOCK_ON/CLOCK_OFF state |
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292 * |
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293 * RETURN VALUE: None |
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294 * |
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295 *****************************************************************************/ |
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296 |
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297 void f_lcd_if_clock( E_LCD_IF_CLOCK d_clock_switch ) |
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298 { |
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299 /* write argument into CNTL_REG:CLOCK13_EN bit */ |
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300 |
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301 if( d_clock_switch == C_LCD_IF_CLOCK_ON ) |
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302 { |
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303 (*(volatile SYS_UWORD16*) C_LCD_IF_CNTL_REG) |= (d_clock_switch << C_LCD_IF_CNTL_REG_CLOCK13_EN_POS); |
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304 } |
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305 else |
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306 { |
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307 (*(volatile SYS_UWORD16*) C_LCD_IF_CNTL_REG) &= ~(d_clock_switch << C_LCD_IF_CNTL_REG_CLOCK13_EN_POS); |
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308 } // End if |
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309 |
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310 } /* f_lcd_if_clock */ |
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311 |
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312 /****************************************************************************** |
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313 * |
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314 * FUNCTION NAME: f_lcd_if_poll_write |
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315 * |
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316 * LCD Controller write procedure in polling mode. |
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317 * |
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318 * |
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319 * ARGUMENT LIST: |
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320 * |
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321 * Argument Type IO Description |
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322 * ------------ ------------------- -- --------------------------------- |
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323 * d_cs E_LCD_IF_CS I LCD Controller Chip select |
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324 * p_data SYS_UWORD16* I pointer on data buffer |
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325 * d_size SYS_UWORD32 I data buffe size |
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326 * d_type E_LCD_IF_DATA_TYPE I Instruction / Data type selector |
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327 * |
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328 * RETURN VALUE: None |
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329 * |
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330 *****************************************************************************/ |
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331 |
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332 void f_lcd_if_poll_write( E_LCD_IF_CS d_cs, |
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333 SYS_UWORD16 *p_data, |
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334 SYS_UWORD32 d_size, |
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335 E_LCD_IF_DATA_TYPE d_type ) |
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336 { |
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337 |
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338 SYS_UWORD32 d_nb_words_to_copy = d_size; |
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339 SYS_UWORD32 d_nb_words_in_loop = 0; |
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340 SYS_UWORD16 *p_buffer = p_data; |
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341 SYS_UWORD8 d_data_type = 0; |
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342 SYS_UWORD8 i = 0; |
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343 |
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344 /* Switch to chip select */ |
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345 /* Set data type and access */ |
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346 |
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347 f_lcd_if_set_cs_and_data_type( d_cs, d_type, C_LCD_IF_WRITE ); |
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348 |
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349 /* infinite loop : exit loop when no words to copy and Tx FIFO empty */ |
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350 |
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351 while( C_LCD_IF_INFINITE_LOOP ) |
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352 { |
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353 |
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354 /* Wait for the LCD Interface Tx FIFO is empty LCD_IF_STS_REG:FIFO_EMPTY_STATUS_BIT */ |
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355 |
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356 F_LCD_IF_WAIT_TX_FIFO_EMPTY; |
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357 |
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358 /* Check if all data have been copied */ |
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359 |
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360 if( d_nb_words_to_copy == 0 ) |
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361 { |
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362 return; |
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363 } // End if |
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364 |
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365 /* Copy up to C_LCD_IF_TX_FIFO_SIZE words into the TX FIFO. */ |
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366 |
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367 if( d_nb_words_to_copy >= C_LCD_IF_TX_FIFO_SIZE) |
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368 { |
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369 d_nb_words_in_loop = C_LCD_IF_TX_FIFO_SIZE; |
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370 } |
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371 else |
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372 { |
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373 d_nb_words_in_loop = d_nb_words_to_copy; |
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374 } // End if |
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375 |
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376 for( i=0; i<d_nb_words_in_loop ;i++ ) |
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377 { |
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378 F_LCD_IF_WRITE_IN_FIFO( p_buffer[i] ); |
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379 } // End for |
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380 |
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381 /* update d_nb_words_to copy and p_buffer */ |
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382 d_nb_words_to_copy -= d_nb_words_in_loop; |
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383 p_buffer += d_nb_words_in_loop; |
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384 |
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385 } // End while |
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386 |
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387 } /* f_lcd_if_poll_write */ |
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388 |
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389 /****************************************************************************** |
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390 * |
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391 * FUNCTION NAME: f_lcd_if_poll_read |
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392 * |
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393 * LCD Controller read procedure in polling mode. |
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394 * |
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395 * |
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396 * ARGUMENT LIST: |
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397 * |
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398 * Argument Type IO Description |
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399 * ------------ ------------------- -- --------------------------------- |
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400 * d_cs E_LCD_IF_CS I LCD Controller Chip select |
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401 * d_type E_LCD_IF_DATA_TYPE I Instruction / Data type selector |
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402 * |
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403 * RETURN VALUE: SYS_UWORD16 : read data word |
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404 * |
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405 *****************************************************************************/ |
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406 |
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407 SYS_UWORD16 f_lcd_if_poll_read( E_LCD_IF_CS d_cs, |
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408 E_LCD_IF_DATA_TYPE d_type ) |
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409 { |
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410 |
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411 SYS_UWORD8 d_data_type = 0; |
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412 |
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413 /* Switch to chip select */ |
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414 /* Set data type and access */ |
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415 |
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416 f_lcd_if_set_cs_and_data_type( d_cs, d_type, C_LCD_IF_READ ); |
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417 |
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418 /* Wait for data received from the LCD Controller hardware */ |
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419 |
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420 F_LCD_IF_WAIT_READ_STATUS; |
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421 |
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422 /* retrieve data read */ |
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423 |
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424 return (*(volatile SYS_UWORD16*) C_LCD_IF_RD_REG); |
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425 |
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426 } /* f_lcd_if_poll_read */ |
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427 |
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428 /****************************************************************************** |
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429 * |
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430 * FUNCTION NAME: f_lcd_if_it_write |
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431 * |
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432 * LCD Controller write procedure in interrupt mode. |
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433 * Direct access to the data buffer |
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434 * |
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435 * ARGUMENT LIST: |
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436 * |
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437 * Argument Type IO Description |
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438 * ------------ ------------------- -- --------------------------------- |
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439 * d_cs E_LCD_IF_CS I LCD Controller Chip select |
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440 * p_buffer SYS_UWORD16 I Pointer to the data buffer |
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441 * d_size SYS_UWORD32 I Data buffer size |
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442 * d_type E_LCD_IF_DATA_TYPE I Instruction / Data type selector |
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443 * pf_callback_sts T_LCD_IF_CALLBACK I Status callback function pointer. |
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444 * |
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445 * RETURN VALUE: E_LCD_IF_RET function status. |
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446 * |
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447 *****************************************************************************/ |
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448 |
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449 E_LCD_IF_RET f_lcd_if_it_write( E_LCD_IF_CS d_cs, |
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450 SYS_UWORD16 *p_buffer, |
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451 SYS_UWORD32 d_size, |
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452 E_LCD_IF_DATA_TYPE d_type, |
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453 T_LCD_IF_CALLBACK pf_callback_sts ) |
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454 { |
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455 |
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456 SYS_UWORD8 d_data_type = 0; |
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457 |
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458 /* Check the callback function argument */ |
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459 |
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460 if( pf_callback_sts == (T_LCD_IF_CALLBACK) NULL ) |
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461 return( C_LCD_IF_RET_ERR ); |
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462 |
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463 /* Switch to chip select */ |
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464 /* Set data type and access */ |
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465 |
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466 f_lcd_if_set_cs_and_data_type( d_cs, d_type, C_LCD_IF_WRITE ); |
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467 |
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468 /* save buffer references and install status callback function */ |
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469 |
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470 d_lcd_if_internal.d_cs_struct[d_cs].d_tx.p_callback = pf_callback_sts; |
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471 d_lcd_if_internal.d_cs_struct[d_cs].d_tx.p_buffer = p_buffer; |
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472 d_lcd_if_internal.d_cs_struct[d_cs].d_tx.d_buffer_size = d_size; |
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473 |
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474 /* set d_interrupt_state to C_LCD_IF_IT_BUFF */ |
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475 |
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476 d_lcd_if_internal.d_interrupt_state = C_LCD_IF_IT_BUFF; |
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477 |
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478 /* Enable LCD Interface TX FIFO Empty interrupt */ |
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479 |
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480 F_LCD_IF_ENABLE_TX_FIFO_EMPTY_IT; |
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481 |
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482 return( C_LCD_IF_RET_OK ); |
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483 |
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484 } /* f_lcd_if_it_write */ |
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485 |
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486 /****************************************************************************** |
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487 * |
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488 * FUNCTION NAME: f_lcd_if_it_write_cust |
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489 * |
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490 * LCD Controller write procedure in interrupt mode. |
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491 * LCD Controller Tx FIFO copy done by transmit callback function. |
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492 * |
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493 * ARGUMENT LIST: |
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494 * |
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495 * Argument Type IO Description |
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496 * ------------ ------------------- -- --------------------------------- |
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497 * d_cs E_LCD_IF_CS I LCD Controller Chip select |
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498 * d_type E_LCD_IF_DATA_TYPE I Instruction / Data type selector |
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499 * pf_callback_tx T_LCD_IF_CALLBACK I Transmit callback function pointer. |
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500 * |
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501 * RETURN VALUE: E_LCD_IF_RET function status. |
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|
502 * |
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503 *****************************************************************************/ |
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504 |
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505 E_LCD_IF_RET f_lcd_if_it_write_cust( E_LCD_IF_CS d_cs, |
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506 E_LCD_IF_DATA_TYPE d_type, |
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|
507 T_LCD_IF_CALLBACK pf_callback_tx ) |
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|
508 { |
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|
509 |
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|
510 SYS_UWORD8 d_data_type = 0; |
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511 |
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|
512 /* Check the callback function argument */ |
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|
513 |
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|
514 if( pf_callback_tx == (T_LCD_IF_CALLBACK) NULL ) |
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515 return( C_LCD_IF_RET_ERR ); |
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|
516 |
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|
517 /* Switch to chip select */ |
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|
518 /* Set data type and access */ |
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|
519 |
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|
520 f_lcd_if_set_cs_and_data_type( d_cs, d_type, C_LCD_IF_WRITE ); |
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|
521 |
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|
522 /* install transmit callback function */ |
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|
523 |
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|
524 d_lcd_if_internal.d_cs_struct[d_cs].d_tx.p_callback = pf_callback_tx; |
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|
525 |
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|
526 /* set d_interrupt_state to C_LCD_IF_IT_CUST */ |
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|
527 |
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diff
changeset
|
528 d_lcd_if_internal.d_interrupt_state = C_LCD_IF_IT_CUST; |
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|
529 |
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|
530 /* Enable LCD Interface TX FIFO Empty interrupt */ |
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diff
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|
531 |
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diff
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|
532 F_LCD_IF_ENABLE_TX_FIFO_EMPTY_IT; |
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|
533 |
945cf7f506b2
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|
534 return( C_LCD_IF_RET_OK ); |
945cf7f506b2
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changeset
|
535 |
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|
536 } /* f_lcd_if_it_write_cust */ |
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|
537 |
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|
538 /****************************************************************************** |
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|
539 * |
945cf7f506b2
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diff
changeset
|
540 * FUNCTION NAME: f_lcd_if_dma_enable |
945cf7f506b2
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diff
changeset
|
541 * |
945cf7f506b2
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diff
changeset
|
542 * LCD Controller write procedure start in DMA mode. |
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diff
changeset
|
543 * |
945cf7f506b2
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diff
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|
544 * ARGUMENT LIST: |
945cf7f506b2
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changeset
|
545 * |
945cf7f506b2
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diff
changeset
|
546 * Argument Type IO Description |
945cf7f506b2
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diff
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547 * ------------ ------------------- -- --------------------------------- |
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548 * d_cs E_LCD_IF_CS I LCD Controller Chip select |
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549 * d_min_frame_sz E_LCD_IF_FRAME_SZ I LCD Interface Minimum frame size |
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550 * d_type E_LCD_IF_DATA_TYPE I Instruction / Data type selector |
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551 * |
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552 * RETURN VALUE: None. |
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553 * |
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554 *****************************************************************************/ |
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555 |
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556 void f_lcd_if_dma_enable( E_LCD_IF_CS d_cs, |
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557 E_LCD_IF_FRAME_SZ d_min_frame_sz, |
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558 E_LCD_IF_DATA_TYPE d_type ) |
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559 { |
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560 |
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561 SYS_UWORD8 d_data_type = 0; |
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562 |
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563 /* Switch to chip select */ |
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564 /* Set data type and access */ |
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565 |
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566 f_lcd_if_set_cs_and_data_type( d_cs, d_type, C_LCD_IF_WRITE ); |
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567 |
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568 /* enables DMA capabilities */ |
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569 |
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570 F_LCD_IF_ENABLE_DMA; |
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571 |
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572 } /* f_lcd_if_dma_enable */ |
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573 |
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574 /****************************************************************************** |
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575 * |
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576 * FUNCTION NAME: f_lcd_if_dma_disable |
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577 * |
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578 * LCD Controller write procedure stop in DMA mode. |
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579 * |
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580 * ARGUMENT LIST: |
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581 * |
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582 * Argument Type IO Description |
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583 * ------------ ------------------- -- --------------------------------- |
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584 * d_cs E_LCD_IF_CS I LCD Controller Chip select |
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585 * pf_callback_sts T_LCD_IF_CALLBACK I Status Callback function pointer |
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586 * |
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587 * RETURN VALUE: E_LCD_IF_RET function status. |
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588 * |
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589 *****************************************************************************/ |
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590 |
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591 |
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592 E_LCD_IF_RET f_lcd_if_dma_disable( E_LCD_IF_CS d_cs, |
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593 T_LCD_IF_CALLBACK pf_callback_sts ) |
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594 { |
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595 |
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596 /* Check the callback function argument */ |
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597 |
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598 if( pf_callback_sts == (T_LCD_IF_CALLBACK) NULL ) |
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599 return( C_LCD_IF_RET_ERR ); |
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600 |
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601 /* disable DMA capabilities */ |
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602 |
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603 F_LCD_IF_DISABLE_DMA; |
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604 |
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605 /* install status callback function */ |
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606 |
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607 d_lcd_if_internal.d_cs_struct[d_cs].d_tx.p_callback = pf_callback_sts; |
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608 |
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609 /* set d_interrupt_state to C_LCD_IF_IT_CUST */ |
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610 |
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611 d_lcd_if_internal.d_interrupt_state = C_LCD_IF_IT_CUST; |
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612 |
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613 /* Enable LCD Interface TX FIFO Empty interrupt */ |
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614 |
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615 F_LCD_IF_ENABLE_TX_FIFO_EMPTY_IT; |
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616 |
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617 return( C_LCD_IF_RET_OK ); |
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618 |
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619 } /* f_lcd_if_dma_disable */ |
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620 |
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621 /****************************************************************************** |
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622 * |
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623 * FUNCTION NAME: f_lcd_if_set_cs_and_data_type |
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624 * |
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625 * Updates CNTL_REG and LCD_CNTL_REG to change LCD Controller addressing. |
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626 * Updates LCD_CNTL_REG to set data type and read or write access |
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627 * |
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628 * ARGUMENT LIST: |
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629 * |
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630 * Argument Type IO Description |
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631 * ------------ ------------------- -- --------------------------------- |
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632 * d_cs E_LCD_IF_CS I LCD Controller Chip select |
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633 * d_type E_LCD_IF_DATA_TYPE I data type |
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634 * d_access E_LCD_IF_DATA_ACCESS I Data access |
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635 * |
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636 * RETURN VALUE: None |
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637 * |
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638 *****************************************************************************/ |
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639 |
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640 void f_lcd_if_set_cs_and_data_type( E_LCD_IF_CS d_cs, E_LCD_IF_DATA_TYPE d_type, E_LCD_IF_DATA_ACCESS d_access ) |
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641 { |
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642 |
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643 SYS_UWORD8 d_data_type; |
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644 |
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645 /* if the argument equals the current chip select, nothing to do */ |
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646 |
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647 if( d_lcd_if_internal.d_current_cs != d_cs ) |
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648 { |
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649 /* What is the chip select value ? */ |
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650 |
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651 if( d_cs == C_LCD_IF_CS_NOT_SELECTED ) |
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652 { |
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653 /* not a valid CS */ |
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654 return; |
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655 } // End if |
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656 |
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657 /* update current struct pointer */ |
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658 |
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659 //d_lcd_if_internal.p_current_struct = &d_lcd_if_internal.d_cs_struct[d_cs]; |
945cf7f506b2
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660 |
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diff
changeset
|
661 |
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diff
changeset
|
662 /* Update CNTL_REG register and LCD_CNTL_REG to the new chip select */ |
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663 /* The CNTL_REG:CLOCK_EN bit is set to Clock enable */ |
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|
664 |
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diff
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665 (*(volatile SYS_UWORD16*) C_LCD_IF_CNTL_REG) = d_lcd_if_internal.d_cs_struct[d_cs].d_cntl_reg; |
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666 (*(volatile SYS_UWORD16*) C_LCD_IF_LCD_CNTL_REG) = d_lcd_if_internal.d_cs_struct[d_cs].d_lcd_cntl_reg; |
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|
667 |
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diff
changeset
|
668 /* update d_current_cs */ |
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669 |
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diff
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670 d_lcd_if_internal.d_current_cs = d_cs; |
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|
671 |
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diff
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672 } // End if |
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diff
changeset
|
673 |
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parents:
diff
changeset
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674 /* Sets LCD_CNTL_REG:LCD_RS to type defined in argument and start read */ |
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parents:
diff
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|
675 |
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diff
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676 if( d_type == C_LCD_IF_INSTRUCTION ) |
945cf7f506b2
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parents:
diff
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677 { |
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parents:
diff
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|
678 d_data_type = (SYS_UWORD8) d_lcd_if_internal.d_cs_struct[d_cs].d_isll; |
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679 } |
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diff
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|
680 else |
945cf7f506b2
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diff
changeset
|
681 { |
945cf7f506b2
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diff
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682 d_data_type = (SYS_UWORD8) ~d_lcd_if_internal.d_cs_struct[d_cs].d_isll; |
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parents:
diff
changeset
|
683 } // End if |
945cf7f506b2
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diff
changeset
|
684 |
945cf7f506b2
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parents:
diff
changeset
|
685 if( d_data_type == 0 ) |
945cf7f506b2
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parents:
diff
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|
686 { |
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parents:
diff
changeset
|
687 (*(volatile SYS_UWORD16*) C_LCD_IF_LCD_CNTL_REG) &= ~( 0x01 << C_LCD_IF_LCD_CNTL_REG_LCD_RS_POS ); |
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parents:
diff
changeset
|
688 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
689 else |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
690 { |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
691 (*(volatile SYS_UWORD16*) C_LCD_IF_LCD_CNTL_REG) |= ( 0x01 << C_LCD_IF_LCD_CNTL_REG_LCD_RS_POS ); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
692 } // End if |
945cf7f506b2
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parents:
diff
changeset
|
693 |
945cf7f506b2
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parents:
diff
changeset
|
694 // Set access type |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
695 |
945cf7f506b2
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parents:
diff
changeset
|
696 if( d_access == C_LCD_IF_READ ) |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
697 { |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
698 (*(volatile SYS_UWORD16*) C_LCD_IF_LCD_CNTL_REG) |= |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
699 (C_LCD_IF_LCD_CNTL_REG_LCD_START_READ_EN << C_LCD_IF_LCD_CNTL_REG_LCD_START_READ_POS); |
945cf7f506b2
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parents:
diff
changeset
|
700 } |
945cf7f506b2
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parents:
diff
changeset
|
701 else |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
702 { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
703 (*(volatile SYS_UWORD16*) C_LCD_IF_LCD_CNTL_REG) &= |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
704 ~(C_LCD_IF_LCD_CNTL_REG_LCD_START_READ_EN << C_LCD_IF_LCD_CNTL_REG_LCD_START_READ_POS); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
705 } // End if |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
706 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
707 } /* f_lcd_if_set_cs_and_data_type */ |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
708 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
709 /****************************************************************************** |
945cf7f506b2
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parents:
diff
changeset
|
710 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
711 * FUNCTION NAME: f_lcd_if_dummy_callback |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
712 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
713 * Dummy callback function for Internal structure initialization. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
714 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
715 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
716 * ARGUMENT LIST: |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
717 * |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
718 * Argument Type IO Description |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
719 * ------------ ------------------- -- --------------------------------- |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
720 * None. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
721 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
722 * RETURN VALUE: E_LCD_IF_CALLBACK_RET |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
723 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
724 *****************************************************************************/ |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
725 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
726 static E_LCD_IF_CALLBACK_RET f_lcd_if_dummy_callback( void ) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
727 { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
728 /* EMPTY DUMMY FUNCTION */ |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
729 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
730 } /* f_lcd_if_dummy_callback */ |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
731 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
732 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
733 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
734 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
735 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
736 /****************************************************************************** |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
737 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
738 * FUNCTION NAME: f_lcd_if_initialization |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
739 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
740 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
741 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
742 * ARGUMENT LIST: |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
743 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
744 * Argument Type IO Description |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
745 * ------------ ------------------- -- --------------------------------- |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
746 * None. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
747 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
748 * RETURN VALUE: |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
749 * |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
750 *****************************************************************************/ |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
751 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
752 void f_lcd_if_initialization( void ) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
753 { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
754 T_LCD_IF_INIT init_struct_ptr; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
755 volatile SYS_UWORD8 i; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
756 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
757 init_struct_ptr.d_mode = C_LCD_IF_8086_MODE; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
758 init_struct_ptr.b_flip_bytes = C_LCD_IF_LSB_FIRST; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
759 init_struct_ptr.d_isll = C_LCD_IF_LOW; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
760 init_struct_ptr.d_tx_init.d_clock_divider = C_LCD_IF_DIV8; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
761 init_struct_ptr.d_rx_init.d_clock_divider = C_LCD_IF_DIV8; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
762 init_struct_ptr.d_rx_init.d_dummy_cycles = C_LCD_IF_0_CYCLE; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
763 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
764 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
765 f_lcd_if_reset(); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
766 f_lcd_if_clock(C_LCD_IF_CLOCK_ON); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
767 f_lcd_if_init(C_LCD_IF_CS0, &(init_struct_ptr) ); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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768 f_lcd_if_reset_lcd_controller(C_LCD_IF_CS0, C_LCD_IF_ON); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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769 for(i=0;i<10;i++); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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770 f_lcd_if_reset_lcd_controller(C_LCD_IF_CS0, C_LCD_IF_OFF); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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771 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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772 } |