FreeCalypso > hg > fc-tourmaline
annotate src/g23m-gprs/cci/cci_gea_start.c @ 255:1a4413c4eb7e
FCHG: missed charging start event in BSIM mode
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 12 May 2021 23:20:23 +0000 |
parents | fa8dc04885d8 |
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rev | line source |
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1
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1 /* |
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2 +----------------------------------------------------------------------------- |
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3 | Project : |
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4 | Modul : cci_gea_start.c |
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5 +----------------------------------------------------------------------------- |
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6 | Copyright 2002 Texas Instruments Berlin, AG |
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7 | All rights reserved. |
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8 | |
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9 | This file is confidential and a trade secret of Texas |
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10 | Instruments Berlin, AG |
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11 | The receipt of or possession of this file does not convey |
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12 | any rights to reproduce or disclose its contents or to |
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13 | manufacture, use, or sell anything it may describe, in |
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14 | whole, or in part, without the specific written consent of |
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15 | Texas Instruments Berlin, AG. |
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16 +----------------------------------------------------------------------------- |
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17 | Purpose : This module implements local functions for service FBS of |
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18 | entity CCI. |
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19 +----------------------------------------------------------------------------- |
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20 */ |
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21 |
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22 #define CCI_GEA_START_C |
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23 |
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24 #ifndef CCI_THREAD |
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25 #define ENTITY_LLC |
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26 #else |
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27 #define ENTITY_CCI |
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28 #endif |
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29 |
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30 |
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31 /*==== INCLUDES =============================================================*/ |
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32 |
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33 #include "typedefs.h" /* to get Condat data types */ |
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34 #include "vsi.h" /* to get a lot of macros */ |
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35 #include "macdef.h" |
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36 #include "gprs.h" |
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37 #include "gsm.h" /* to get a lot of macros */ |
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38 #include "cnf_llc.h" /* to get cnf-definitions */ |
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39 #include "mon_llc.h" /* to get mon-definitions */ |
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40 #include "prim.h" /* to get the definitions of used SAP and directions */ |
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41 #include "cci.h" /* to get the global entity definitions */ |
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42 #ifndef CCI_THREAD |
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43 #include "llc.h" /* to get the global entity definitions */ |
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44 #endif |
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45 |
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46 #ifndef _SIMULATION_ |
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47 #include "config/chipset.cfg" |
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48 #endif /* ifdef SIMULATION */ |
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49 |
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50 |
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51 /*==== CONST ================================================================*/ |
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52 |
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53 /*==== LOCAL VARS ===========================================================*/ |
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54 |
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55 /*==== PRIVATE FUNCTIONS ====================================================*/ |
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56 |
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57 /*==== PUBLIC FUNCTIONS =====================================================*/ |
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58 |
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59 |
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60 /* |
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61 +------------------------------------------------------------------------------ |
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62 | Function : gea_start |
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63 +------------------------------------------------------------------------------ |
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64 | Description : The function .... |
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65 | |
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66 | Parameters : void |
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67 | |
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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 /* GEA work-around only affects Calypso+ chipset. */ |
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73 #ifndef CCI_FLASH_ROM |
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74 /* Assembly routine gea_start() should be executed from the Internal RAM */ |
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75 void gea_start(void){ |
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76 #if (CHIPSET == 12) || (CHIPSET == 14) |
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77 /* Enable Timer1 clock */ |
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78 *(volatile USHORT *) 0xfffe3800 |= 0x0020; |
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79 |
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80 /* Save into the stack ARM registers r0 to r4 */ |
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81 asm(" push {r0-r4}"); |
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82 |
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83 /* Load in r0 READ_TIMER1 address */ |
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84 asm(" ldr r0, READ_TIMER1_ADDR"); |
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85 |
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86 /* Set bit START in GEA_CNTL register */ |
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87 asm(" ldr r1, GEA_CNTL_ADDR"); |
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88 asm(" mov r4,#4"); |
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89 asm(" ldrh r2, [r1]"); |
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90 asm(" orr r2,r4"); |
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91 asm(" strh r2,[r1]"); |
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92 |
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93 /* Load Timer1 in r3 in order to prevent DMA access on strobe0 during the |
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94 GEA clock switch. This reading of Timer1 generates around 13 cycles of |
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95 MCU clock activity on strobe1 and so guaranties that strobe0 will be |
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96 quiet during that time. */ |
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97 asm(" ldrh r3,[r0]"); |
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98 |
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99 /* Restore ARM registers r0 to r4 from the stack */ |
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100 asm(" pop {r0-r4}"); |
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101 |
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102 /* Branch to end of the function, to avoid that the 2 following constant |
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103 definitions are mistaken with code instructions. */ |
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104 asm(" br $gea_end_func"); |
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105 |
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106 /* Must be defined inside the function body, else depending on the compiler |
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107 version, they are not inserted in the right section */ |
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108 asm("READ_TIMER1_ADDR .long 0xFFFE3804"); |
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109 asm("GEA_CNTL_ADDR .long 0xffffc000"); |
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110 |
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111 asm("$gea_end_func:"); |
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112 } |
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113 #else |
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114 } |
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115 #endif /*(CHIPSET == 12)*/ |
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116 |
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117 #endif /* CCI_FLASH_ROM */ |
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118 |