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annotate gsm-fw/bsp/inth.c @ 1023:cd6002e3aefb

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doc/Freerunner-Howto: apparently some people still use SHR, so mention it too
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Tue, 03 May 2016 13:48:39 +0000
parents afceeeb2cba1
children
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1 /*******************************************************************************
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2 TEXAS INSTRUMENTS INCORPORATED PROPRIETARY INFORMATION
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3
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4 Property of Texas Instruments -- For Unrestricted Internal Use Only
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5 Unauthorized reproduction and/or distribution is strictly prohibited. This
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6 product is protected under copyright law and trade secret law as an
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7 unpublished work. Created 1987, (C) Copyright 1997 Texas Instruments. All
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8 rights reserved.
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9
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10
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11 Filename : inth.c
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12
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13 Description : inth.c saturn interupt handler
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14
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15 Project : drivers
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16
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17 Author : pmonteil@tif.ti.com Patrice Monteil.
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18
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19 Version number : 1.8
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20
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21 Date and time : 01/30/01 10:22:26
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22
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23 Previous delta : 12/19/00 14:39:21
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24
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25 SCCS file : /db/gsm_asp/db_ht96/dsp_0/gsw/rel_0/mcu_l1/release_gprs/RELEASE_GPRS/drivers1/common/SCCS/s.inth.c
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26
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27 Sccs Id (SID) : '@(#) inth.c 1.8 01/30/01 10:22:26 '
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29
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30 *****************************************************************************/
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31
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32 #include "../include/config.h"
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33 #include "../include/sys_types.h"
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34
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35 #include "mem.h"
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36 #include "inth.h"
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37
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38
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39
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40
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41 /*---------------------------------------------------------------/
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42 /* INTH_Ack() */
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43 /*--------------------------------------------------------------*/
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44 /* Parameters : num of it */
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45 /* Return : none */
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46 /* Functionality :Acknowledge an interrupt and return the origin*/
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47 /* of the interrupt (binary format) */
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48 /*--------------------------------------------------------------*/
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49
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50 SYS_UWORD16 INTH_Ack (int intARM)
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51 {
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52 if (intARM == INTH_IRQ)
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53 return((* (volatile SYS_UWORD16 *) INTH_B_IRQ_REG) & INTH_SRC_NUM);
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54 else
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55 return((* (volatile SYS_UWORD16 *) INTH_B_FIQ_REG) & INTH_SRC_NUM);
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56 }
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57
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58 /*---------------------------------------------------------------/
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59 /* INTH_GetPending() */
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60 /*--------------------------------------------------------------*/
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61 /* Parameters : none */
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62 /* Return : none */
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63 /* Functionality : Return the pending interrupts */
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64 /*--------------------------------------------------------------*/
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65
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66 #if ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11) || (CHIPSET == 12))
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67 unsigned long INTH_GetPending (void)
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68 {
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69 return((unsigned long)((* (volatile SYS_UWORD16 *) INTH_IT_REG1) |
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70 ((* (volatile SYS_UWORD16 *) INTH_IT_REG2) << 16)));
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71 }
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72 #else
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73 unsigned short INTH_GetPending (void)
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74 {
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75 return(* (volatile SYS_UWORD16 *) INTH_IT_REG);
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76 }
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77 #endif
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78
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79 /*---------------------------------------------------------------/
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80 /* INTH_InitLevel() */
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81 /*--------------------------------------------------------------*/
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82 /* Parameters : num it,FIQ/IRQ,priority level,edge/level. */
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83 /* Return : none */
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84 /* Functionality : Initialize an interrupt */
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85 /* - put it on IRQ or FIQ */
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86 /* - set its priority level */
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87 /* */
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88 /*--------------------------------------------------------------*/
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89
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90 void INTH_InitLevel (int inputInt, int FIQ_nIRQ, int priority, int edge)
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91 {
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92 volatile SYS_UWORD16 *inthLevelReg = (SYS_UWORD16 *) INTH_EXT_REG;
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93
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94 inthLevelReg = inthLevelReg + inputInt;
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95
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96 #if ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11) || (CHIPSET == 12))
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97 *inthLevelReg = (FIQ_nIRQ | (edge << 1) | (priority << 2));
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98 #else
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99 *inthLevelReg = (FIQ_nIRQ | (priority << 1) | (edge << 5));
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100 #endif
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101 }
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102
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103 /*---------------------------------------------------------------/
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104 /* INTH_ResetIT() */
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105 /*--------------------------------------------------------------*/
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106 /* Parameters : none */
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107 /* Return : none */
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108 /* Functionality : reset the inth it register */
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109 /*--------------------------------------------------------------*/
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110
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111 #if ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11) || (CHIPSET == 12))
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112 unsigned long INTH_ResetIT (void)
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113 {
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114 * (volatile SYS_UWORD16 *) INTH_IT_REG1 &= 0x0000;
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115 * (volatile SYS_UWORD16 *) INTH_IT_REG2 &= 0x0000;
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116 return((unsigned long)((* (volatile SYS_UWORD16 *) INTH_IT_REG1) |
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117 ((* (volatile SYS_UWORD16 *) INTH_IT_REG2) << 16)));
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118 }
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119 #else
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120 unsigned short INTH_ResetIT (void)
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121 {
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122 * (volatile SYS_UWORD16 *) INTH_IT_REG &= 0x0000;
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123 return(* (volatile SYS_UWORD16 *) INTH_IT_REG);
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124 }
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125 #endif