FreeCalypso > hg > freecalypso-sw
annotate gsm-fw/bsp/abb+spi/abb_inline.h @ 295:3dd74b16df82
fc-fsio: pathname recursion handling revamped
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Sat, 01 Mar 2014 08:01:08 +0000 |
parents | 971e84124a6f |
children | cc0944d35698 |
rev | line source |
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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7 /* unpublished work.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 : abb_inline.h */ |
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12 /* */ |
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13 /* Description : inline functions to drive the ABB device. */ |
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14 /* The Serial Port Interface is used to connect the TI */ |
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15 /* Analog BaseBand (ABB). */ |
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16 /* It is assumed that the ABB is connected as the SPI */ |
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17 /* device 0. */ |
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18 /* */ |
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19 /* Author : Pascal PUEL */ |
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20 /* */ |
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21 /* Version number : 1.0 */ |
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22 /* */ |
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23 /* Date and time : Dec 2002 */ |
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24 /* */ |
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25 /* Previous delta : Creation */ |
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26 /* */ |
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27 /**********************************************************************************/ |
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28 |
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29 #ifndef __ABB_INLINE_H__ |
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30 #define __ABB_INLINE_H__ |
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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 "spi_drv.h" |
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36 |
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37 // MACROS |
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38 #define ABB_WRITE_REG(reg, data) { \ |
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39 SPI_WRITE_TX_MSB((data << 6) | reg) \ |
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40 SPI_START_WRITE } |
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41 |
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42 #define ABB_READ_REG(reg) { \ |
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43 SPI_WRITE_TX_MSB(reg | 1) \ |
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44 SPI_START_READ } |
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45 |
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46 |
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47 #define ABB_SET_PAGE(page) ABB_WRITE_REG(PAGEREG, page) |
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48 |
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49 #define SEVEN_CYCLES_13M_NS 539 |
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50 |
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51 // INLINE FUNCTIONS |
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52 /*-----------------------------------------------------------------------*/ |
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53 /* ABB_SetPage() */ |
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54 /* */ |
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55 /* This function sets the right page in the ABB register PAGEREG. */ |
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56 /* */ |
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57 /*-----------------------------------------------------------------------*/ |
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58 static inline void ABB_SetPage(SYS_UWORD16 page) |
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59 { |
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60 volatile SYS_UWORD16 status; |
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61 |
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62 ABB_SET_PAGE(page); |
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63 while(((status = * (volatile SYS_UWORD16 *) SPI_REG_STATUS) & WE_ST) == 0); |
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64 |
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65 // if IBIC is already processing another request (from the BSP) |
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66 // the USP request is delayed by 3 clock cycles |
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67 // which gives a total of 7 clock cycles ( = 539 ns at 13 MHz) in the worst case |
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68 wait_ARM_cycles(convert_nanosec_to_cycles(SEVEN_CYCLES_13M_NS)); |
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69 } |
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70 |
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71 |
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72 /*-----------------------------------------------------------------------*/ |
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73 /* ABB_WriteRegister() */ |
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74 /* */ |
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75 /* This function writes "data" in the ABB register "abb_reg". */ |
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76 /* */ |
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77 /*-----------------------------------------------------------------------*/ |
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78 static inline void ABB_WriteRegister(SYS_UWORD16 abb_reg, SYS_UWORD16 data) |
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79 { |
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80 volatile SYS_UWORD16 status; |
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81 |
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82 ABB_WRITE_REG(abb_reg, data); |
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83 while(((status = * (volatile SYS_UWORD16 *) SPI_REG_STATUS) & WE_ST) == 0); |
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84 |
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85 // if IBIC is already processing another request (from the BSP) |
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86 // the USP request is delayed by 3 clock cycles |
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87 // which gives a total of 7 clock cycles ( = 539 ns at 13 MHz) in the worst case |
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88 wait_ARM_cycles(convert_nanosec_to_cycles(SEVEN_CYCLES_13M_NS)); |
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89 |
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90 } |
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91 |
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92 |
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93 /*-----------------------------------------------------------------------*/ |
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94 /* ABB_ReadRegister() */ |
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95 /* */ |
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96 /* This function reads the ABB register "abb_reg" and returns */ |
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97 /* the real register value. */ |
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98 /* */ |
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99 /*-----------------------------------------------------------------------*/ |
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100 static inline SYS_UWORD16 ABB_ReadRegister(SYS_UWORD16 abb_reg) |
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101 { |
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102 volatile SYS_UWORD16 status; |
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103 |
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104 // First part of read access to the ABB register |
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105 ABB_READ_REG(abb_reg); |
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106 while(((status = * (volatile SYS_UWORD16 *) SPI_REG_STATUS) & RE_ST) == 0); |
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107 |
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108 // if IBIC is already processing another request (from the BSP) |
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109 // the USP request is delayed by 3 clock cycles |
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110 // which gives a total of 7 clock cycles ( = 539 ns at 13 MHz) in the worst case |
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111 wait_ARM_cycles(convert_nanosec_to_cycles(SEVEN_CYCLES_13M_NS)); |
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112 |
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113 // Second part of read access to the ABB register |
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114 ABB_READ_REG(abb_reg); |
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115 while(((status = * (volatile SYS_UWORD16 *) SPI_REG_STATUS) & RE_ST) == 0); |
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116 |
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117 // if IBIC is already processing another request (from the BSP) |
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118 // the USP request is delayed by 3 clock cycles |
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119 // which gives a total of 7 clock cycles ( = 539 ns at 13 MHz) in the worst case |
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120 wait_ARM_cycles(convert_nanosec_to_cycles(SEVEN_CYCLES_13M_NS)); |
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121 |
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122 return ((SPI_ReadRX_LSB() >> 6) & 0x3ff); |
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123 } |
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124 |
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125 |
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126 #endif // __ABB_INLINE_H__ |