mac_backoff_timer.s51
来自「TI的基于ZIGBEE2006的协议栈」· S51 代码 · 共 1,453 行 · 第 1/5 页
S51
1,453 行
CFI `VB.BR12` SameValue
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CFI VB SameValue
CFI B Undefined
CFI A Undefined
CFI PSW SameValue
CFI DPL0 SameValue
CFI DPH0 SameValue
CFI R0 Undefined
CFI R1 Undefined
CFI R2 Undefined
CFI R3 Undefined
CFI R4 Undefined
CFI R5 Undefined
CFI R6 SameValue
CFI R7 SameValue
CFI V0 SameValue
CFI V1 SameValue
CFI V2 SameValue
CFI V3 SameValue
CFI V4 SameValue
CFI V5 SameValue
CFI V6 SameValue
CFI V7 SameValue
CFI PSPH Undefined
CFI PSPL Undefined
CFI XSPH Undefined
CFI XSPL Undefined
CFI ?RET Concat
CFI ?BRET_EXT Frame(CFA_SP, 3)
CFI ?RET_HIGH Frame(CFA_SP, 2)
CFI ?RET_LOW Frame(CFA_SP, 1)
CFI EndCommon cfiCommon0
CFI Common cfiCommon1 Using cfiNames0
CFI CodeAlign 1
CFI DataAlign -1
CFI ReturnAddress ?RET CODE
CFI CFA_DOVERLAY Used
CFI CFA_IOVERLAY Used
CFI CFA_SP SP+-2
CFI CFA_PSP16 PSP16+0
CFI CFA_XSP16 XSP16+0
CFI `PSW.CY` SameValue
CFI `B.BR0` SameValue
CFI `B.BR1` SameValue
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CFI `VB.BR8` SameValue
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CFI `VB.BR11` SameValue
CFI `VB.BR12` SameValue
CFI `VB.BR13` SameValue
CFI `VB.BR14` SameValue
CFI `VB.BR15` SameValue
CFI VB SameValue
CFI B SameValue
CFI A SameValue
CFI PSW SameValue
CFI DPL0 SameValue
CFI DPH0 SameValue
CFI R0 SameValue
CFI R1 SameValue
CFI R2 SameValue
CFI R3 SameValue
CFI R4 SameValue
CFI R5 SameValue
CFI R6 SameValue
CFI R7 SameValue
CFI V0 SameValue
CFI V1 SameValue
CFI V2 SameValue
CFI V3 SameValue
CFI V4 SameValue
CFI V5 SameValue
CFI V6 SameValue
CFI V7 SameValue
CFI PSPH Undefined
CFI PSPL Undefined
CFI XSPH Undefined
CFI XSPL Undefined
CFI ?RET Concat
CFI ?BRET_EXT SameValue
CFI ?RET_HIGH Frame(CFA_SP, 2)
CFI ?RET_LOW Frame(CFA_SP, 1)
CFI EndCommon cfiCommon1
EXTERN macMcuOverflowSetCount
FUNCTION macMcuOverflowSetCount,0202H
ARGFRAME XSTACK, 20, STACK
EXTERN macMcuOrT2PEROF2
FUNCTION macMcuOrT2PEROF2,0202H
ARGFRAME XSTACK, 12, STACK
EXTERN macMcuAndT2PEROF2
FUNCTION macMcuAndT2PEROF2,0202H
ARGFRAME ISTACK, 2, STACK
EXTERN macMcuOverflowCount
FUNCTION macMcuOverflowCount,0202H
ARGFRAME XSTACK, 20, STACK
EXTERN halAssertHandler
FUNCTION halAssertHandler,0202H
ARGFRAME XSTACK, 20, STACK
EXTERN macMcuOverflowSetCompare
FUNCTION macMcuOverflowSetCompare,0202H
ARGFRAME XSTACK, 16, STACK
EXTERN macMcuOverflowCapture
FUNCTION macMcuOverflowCapture,0202H
ARGFRAME XSTACK, 16, STACK
EXTERN macCspForceTxDoneIfPending
FUNCTION macCspForceTxDoneIfPending,0202H
ARGFRAME XSTACK, 20, STACK
EXTERN macBackoffTimerRolloverCallback
FUNCTION macBackoffTimerRolloverCallback,0202H
ARGFRAME XSTACK, 12, STACK
EXTERN macBackoffTimerTriggerCallback
FUNCTION macBackoffTimerTriggerCallback,0202H
ARGFRAME XSTACK, 12, STACK
EXTERN macTxActive
// C:\Texas Instruments\ZStack-1.4.2\Components\mac\low_level\srf03\mac_backoff_timer.c
// 1 /**************************************************************************************************
// 2 Filename:
// 3 Revised: $Date: 2007-03-26 16:18:09 -0700 (Mon, 26 Mar 2007) $
// 4 Revision: $Revision: 13860 $
// 5
// 6 Description:
// 7
// 8 Describe the purpose and contents of the file.
// 9
// 10 Copyright (c) 2006 by Texas Instruments, Inc.
// 11 All Rights Reserved. Permission to use, reproduce, copy, prepare
// 12 derivative works, modify, distribute, perform, display or sell this
// 13 software and/or its documentation for any purpose is prohibited
// 14 without the express written consent of Texas Instruments, Inc.
// 15 **************************************************************************************************/
// 16
// 17
// 18
// 19 /* ------------------------------------------------------------------------------------------------
// 20 * Includes
// 21 * ------------------------------------------------------------------------------------------------
// 22 */
// 23
// 24 /* hal */
// 25 #include "hal_types.h"
// 26 #include "hal_mcu.h"
ASEGN SFR_AN:DATA:NOROOT,0a6H
// unsigned char volatile __sfr T2TLD
T2TLD:
DS 1
ASEGN SFR_AN:DATA:NOROOT,0a7H
// unsigned char volatile __sfr T2THD
T2THD:
DS 1
ASEGN SFR_AN:DATA:NOROOT,0c3H
// unsigned char volatile __sfr T2CNF
T2CNF:
DS 1
// 27
// 28 /* high-level specific */
// 29 #include "mac_spec.h"
// 30
// 31 /* exported low-level */
// 32 #include "mac_low_level.h"
// 33
// 34 /* low-level specific */
// 35 #include "mac_backoff_timer.h"
// 36 #include "mac_tx.h"
// 37
// 38 /* target specific */
// 39 #include "mac_radio_defs.h"
// 40
// 41 /* debug */
// 42 #include "mac_assert.h"
// 43
// 44
// 45 /* ------------------------------------------------------------------------------------------------
// 46 * Defines
// 47 * ------------------------------------------------------------------------------------------------
// 48 */
// 49 #define COMPARE_STATE_ROLLOVER_BV BV(0)
// 50 #define COMPARE_STATE_TRIGGER_BV BV(1)
// 51 #define COMPARE_STATE_ARM_BV BV(2)
// 52
// 53 #define COMPARE_STATE_TRIGGER COMPARE_STATE_TRIGGER_BV
// 54 #define COMPARE_STATE_ROLLOVER COMPARE_STATE_ROLLOVER_BV
// 55 #define COMPARE_STATE_ROLLOVER_AND_TRIGGER (COMPARE_STATE_ROLLOVER_BV | COMPARE_STATE_TRIGGER_BV)
// 56 #define COMPARE_STATE_ROLLOVER_AND_ARM_TRIGGER (COMPARE_STATE_ROLLOVER_BV | COMPARE_STATE_ARM_BV)
// 57
// 58
// 59 /*
// 60 * The datasheet mentions a small delay on both receive and transmit side of approximately
// 61 * two microseconds. The precise characterization is given below.
// 62 * (This data is not given in rev 1.03 datasheet)
// 63 */
// 64 #define RX_TX_PROP_DELAY_AVG_USEC ((MAC_RADIO_RX_TX_PROP_DELAY_MIN_USEC + MAC_RADIO_RX_TX_PROP_DELAY_MAX_USEC) / 2)
// 65 #define RX_TX_PROP_DELAY_AVG_TIMER_TICKS ((uint16)(MAC_RADIO_TIMER_TICKS_PER_USEC() * RX_TX_PROP_DELAY_AVG_USEC + 0.5))
// 66
// 67 /*
// 68 * For slotted receives, the SFD signal is expected to occur on a specifc symbol boundary.
// 69 * This does *not* correspond to the backoff boundary. The SFD signal occurs at an
// 70 * offset from the backoff boundary. This is done for efficiency of related algorithms.
// 71 *
// 72 * Once transmit is strobed there is a fixed delay until the SFD signal occurs. The frame
// 73 * does not start over-the-air transmit until after an internal radio delay of 12 symbols.
// 74 * Once transmitting over-the-air, the preamble is sent (8 symbols) followed by the
// 75 * SFD field (2 symbols). After the SFD field completes, the SFD signal occurs. This
// 76 * adds up to a total of 22 symbols from strobe to SFD signal.
// 77 *
// 78 * Since 22 symbols spans more than a backoff (20 symbols) the modulus operation is used
// 79 * to find the symbol offset which is 2 symbols.
// 80 *
// 81 * This math is derived formally via the pre-processor.
// 82 */
// 83 #define SYMBOLS_FROM_STROBE_TO_PREAMBLE 12 /* from datasheet */
// 84 #define SYMBOLS_FROM_PREAMBLE_TO_SFD (MAC_SPEC_PREAMBLE_FIELD_LENGTH + MAC_SPEC_SFD_FIELD_LENGTH)
// 85 #define SYMBOLS_FROM_STROBE_TO_SFD (SYMBOLS_FROM_STROBE_TO_PREAMBLE + SYMBOLS_FROM_PREAMBLE_TO_SFD)
// 86 #define SYMBOLS_EXPECTED_AT_SFD (SYMBOLS_FROM_STROBE_TO_SFD % MAC_A_UNIT_BACKOFF_PERIOD)
// 87
// 88 /* after all that formal math, make sure the result is as expected */
// 89 #if (SYMBOLS_EXPECTED_AT_SFD != 2)
// 90 #error "ERROR! Internal problem with pre-processor math of slotted alignment."
// 91 #endif
// 92
// 93
// 94 /*
// 95 * The expected SFD signal occurs at the symbol offset *plus* a small internal propagation delay
// 96 * internal to the radio. This delay is given as the sum of a receive side delay and a transmit
// 97 * side delay. When this delay is subtracted from the internal timer, the internal time base
// 98 * actually becomes the actual receive time *minus* the transmit delay. This works out though.
// 99 * The transmit logic does *not* take into account this delay. Since the timer is skewed by the
// 100 * transmit delay already, the transmits go out precisely on time.
// 101 */
// 102 #define TIMER_TICKS_EXPECTED_AT_SFD ((SYMBOLS_EXPECTED_AT_SFD * MAC_RADIO_TIMER_TICKS_PER_SYMBOL()) \
// 103 + RX_TX_PROP_DELAY_AVG_TIMER_TICKS)
// 104
// 105
// 106 /* ------------------------------------------------------------------------------------------------
// 107 * Local Variables
// 108 * ------------------------------------------------------------------------------------------------
// 109 */
RSEG XDATA_Z:XDATA:NOROOT(0)
REQUIRE __INIT_XDATA_Z
// 110 static uint32 backoffTimerRollover;
??backoffTimerRollover:
DS 4
RSEG XDATA_Z:XDATA:NOROOT(0)
REQUIRE __INIT_XDATA_Z
// 111 static uint32 backoffTimerTrigger;
??backoffTimerTrigger:
DS 4
RSEG XDATA_Z:XDATA:NOROOT(0)
REQUIRE __INIT_XDATA_Z
// 112 static uint8 compareState;
??compareState:
DS 1
// 113
// 114
// 115 /**************************************************************************************************
// 116 * @fn macBackoffTimerInit
// 117 *
// 118 * @brief Intializes backoff timer.
// 119 *
// 120 * @param none
// 121 *
// 122 * @return none
// 123 **************************************************************************************************
// 124 */
RSEG BANKED_CODE:CODE:NOROOT(0)
// 125 void macBackoffTimerInit(void)
macBackoffTimerInit:
CFI Block cfiBlock0 Using cfiCommon0
CFI Function macBackoffTimerInit
// 126 {
FUNCALL macBackoffTimerInit, macMcuOverflowSetCount
LOCFRAME XSTACK, 12, STACK
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