FreeCalypso > hg > fc-tourmaline

annotate src/cs/drivers/drv_app/spi/spi_process.c @ 268:f2e52cab0a73

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abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 13 Jun 2021 18:17:53 +0000
parents 34b7059b9337
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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1 /*****************************************************************************/
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2 /* */
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3 /* Name spi_process.c */
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4 /* */
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5 /* Function this file contains the spi_process function, used to */
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6 /* handle messages received in the SPI mailbox, and used to */
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7 /* access the ABB. It is called by the spi task core. */
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8 /* */
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9 /* Version 0.1 */
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10 /* */
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11 /* Date Modification */
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12 /* ------------------------------------ */
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13 /* 20/08/2000 Create */
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14 /* */
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15 /* Author */
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16 /* */
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17 /* (C) Copyright 2000 by Texas Instruments Incorporated, All Rights Reserved */
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18 /*****************************************************************************/
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19
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20 #include "rvf/rvf_api.h"
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21 #include "spi/spi_api.h"
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22 #include "rvm/rvm_use_id_list.h"
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23 #include "spi/spi_process.h"
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24 #include "rv/rv_defined_swe.h" // for RVM_PWR_SWE
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26
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27 /*******************************************************************************
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28 ** Function spi_process
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29 **
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30 *******************************************************************************/
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31 UINT8 spi_process(T_RV_HDR * msg_ptr)
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32 {
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33 UINT16 data ;
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34
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35 if(msg_ptr != NULL)
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36 {
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37 switch (msg_ptr->msg_id)
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38 {
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39 case ABB_EXT_IRQ_EVT:
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40 {
0
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41 /* Call to the low-level driver function : interrupt status register reading */
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42 data = ABB_Read_Register_on_page(PAGE0, ITSTATREG);
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43
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44 /* Callback function */
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45 if(msg_ptr->callback_func != NULL)
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46 {
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47 msg_ptr->callback_func(&data);
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48 }
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49
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50 rvf_free_buf ((void *) msg_ptr);
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51
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52 break;
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53 }
0
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54
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55 case SPI_ABB_READ_EVT:
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56 {
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57 rvf_send_trace("SPI_task: SPI_READ_ABB_EVT received", 35, NULL_PARAM, RV_TRACE_LEVEL_DEBUG_LOW, SPI_USE_ID);
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58
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59 /* Call to the low-level driver function */
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60 data = ABB_Read_Register_on_page(((T_SPI_READ *)msg_ptr)->page, ((T_SPI_READ *)msg_ptr)->address);
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61
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62 /* Callback function */
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63 if(((T_SPI_READ *)msg_ptr)->os_hdr.callback_func != NULL)
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64 {
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65 ((T_SPI_READ *)msg_ptr)->os_hdr.callback_func(&data);
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66 }
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67
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68 rvf_free_buf ((void *) msg_ptr);
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69
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70 return 0;
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71 }
0
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72
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73 case SPI_ABB_WRITE_EVT:
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74 {
0
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75 rvf_send_trace("SPI_task: SPI_WRITE_ABB_EVT received", 36, NULL_PARAM, RV_TRACE_LEVEL_DEBUG_LOW, SPI_USE_ID);
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76
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77 /* Call to the low-level driver function */
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78 ABB_Write_Register_on_page(((T_SPI_WRITE *)msg_ptr)->page, ((T_SPI_WRITE *)msg_ptr)->address, ((T_SPI_WRITE *)msg_ptr)->data);
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79
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80 rvf_free_buf ((void *) msg_ptr);
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81
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82 return 0;
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83 }
0
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84
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85 case SPI_ABB_CONF_ADC_EVT:
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86 {
0
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87 rvf_send_trace("SPI_task: SPI_ABB_CONF_ADC_EVT received", 39, NULL_PARAM, RV_TRACE_LEVEL_DEBUG_LOW, SPI_USE_ID);
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88
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89 /* Call to the low-level driver function */
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90 ABB_Conf_ADC(((T_SPI_ABB_CONF_ADC *)msg_ptr)->channels, ((T_SPI_ABB_CONF_ADC *)msg_ptr)->itval);
0
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91
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92 rvf_free_buf ((void *) msg_ptr);
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93
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94 return 0;
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95 }
0
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96
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97 case SPI_ABB_READ_ADC_EVT:
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98 {
0
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99 rvf_send_trace("SPI_task: SPI_ABB_READ_ADC_EVT received", 39, NULL_PARAM, RV_TRACE_LEVEL_DEBUG_LOW, SPI_USE_ID);
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100
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101 /* Call to the low-level driver function */
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102 ABB_Read_ADC(((T_SPI_ABB_READ_ADC *)msg_ptr)->Buff);
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103
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104 /* Callback function */
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105 if(((T_SPI_ABB_READ_ADC *)msg_ptr)->callback_func != NULL)
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106 {
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107 ((T_SPI_ABB_READ_ADC *)msg_ptr)->callback_func();
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108 }
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109
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110 rvf_free_buf ((void *) msg_ptr);
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111
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112 return 0;
260
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113 }
0
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114
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115 default:
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116 {
0
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117 /* Unknown message has been received */
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118 #ifdef RVM_PWR_SWE
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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119 rvf_send_trace("SPI_task : Received an unknown or a PWR message",47, NULL_PARAM ,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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120 RV_TRACE_LEVEL_DEBUG_HIGH, SPI_USE_ID);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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121 #else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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122 rvf_send_trace("SPI_task : Received an unknown message",38, NULL_PARAM ,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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123 RV_TRACE_LEVEL_DEBUG_HIGH, SPI_USE_ID);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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124
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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125 rvf_free_buf ((void *) msg_ptr);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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126 #endif
259
365833d1d186 drv_app/spi/*: rm trailing white space
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
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127
365833d1d186 drv_app/spi/*: rm trailing white space
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
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128 return 1;
260
34b7059b9337 drv_app/spi/*: code readability fixes
Mychaela Falconia <falcon@freecalypso.org>
parents: 259
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129 }
0
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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130 } // end of switch
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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131 } // end of if (msg_ptr != NULL)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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132 return 0;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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133 }