From 22abd06132445a55a1a0266897920f26634825c1 Mon Sep 17 00:00:00 2001 From: Florent Duchon Date: Wed, 26 Dec 2012 17:38:10 +0100 Subject: digital/beacon: remove obsolete bitcloud stack --- .../HAL/avr/atmega1281/common/src/halW1.s | 210 --------------------- 1 file changed, 210 deletions(-) delete mode 100644 digital/beacon/src/Bitcloud_stack/Components/HAL/avr/atmega1281/common/src/halW1.s (limited to 'digital/beacon/src/Bitcloud_stack/Components/HAL/avr/atmega1281/common/src/halW1.s') diff --git a/digital/beacon/src/Bitcloud_stack/Components/HAL/avr/atmega1281/common/src/halW1.s b/digital/beacon/src/Bitcloud_stack/Components/HAL/avr/atmega1281/common/src/halW1.s deleted file mode 100644 index 1c76747f..00000000 --- a/digital/beacon/src/Bitcloud_stack/Components/HAL/avr/atmega1281/common/src/halW1.s +++ /dev/null @@ -1,210 +0,0 @@ -/**************************************************************************//** - \file halW1.s - - \brief Implementation of 1-wire hardware-dependent module. - - \author - Atmel Corporation: http://www.atmel.com \n - Support email: avr@atmel.com - - Copyright (c) 2008-2011, Atmel Corporation. All rights reserved. - Licensed under Atmel's Limited License Agreement (BitCloudTM). - - \internal - History: - 29/05/07 E. Ivanov - Created - ******************************************************************************/ -/****************************************************************************** - * WARNING: CHANGING THIS FILE MAY AFFECT CORE FUNCTIONALITY OF THE STACK. * - * EXPERT USERS SHOULD PROCEED WITH CAUTION. * - ******************************************************************************/ - -.include "halGccD.h" -.set __w1_port, 0x14 ; PORTG -.set __w1_bit, 5 ; PORTG5 -.set __w1_ddr, 0x13 ; DDRG -.set __w1_pin, 0x12 ; PING - -/*============================================================= - Resets all devices connected to the bus. Function asserts on - the bus reset pulse and detects presence pulse. The result is - contained in r24. - Parameters: - Returns: - W1_SUCCESS_STATUS - If device(s) was(were) detected. - W1_NO_DEVICE_STATUS - If device(s) was(were) not detected. -===============================================================*/ -.global halResetW1 -.type halResetW1,@function -halResetW1: - ; Store SREG - push r23 - in r23, 0x3F - ; Disable interrupts - cli - ; Pull down - sbi __w1_ddr, __w1_bit - cbi __w1_port, __w1_bit - ; Reset Low Time (500 us) - ldi r24, 250 - call __delay_us - ldi r24, 250 - call __delay_us - ; Tri-state (external pullup) - cbi __w1_ddr, __w1_bit - ; Presence-Detect Sample Time (70 us) - ldi r24, 70 - call __delay_us - ; Precense-Detect - ldi r24, 0x01 - sbic __w1_pin, __w1_bit - ldi r24, 0x00 - push r24 - ; Tail of Reset High Time - ldi r24, 240 - call __delay_us - pop r24 - ; Restore SREG - out 0x3F, r23 - pop r23 - ret - -/*============================================================= - Reads bit from the bus - Returns: - bit read from the bus in r24 -===============================================================*/ -.global halReadW1Bit -.type halReadW1Bit,@function -halReadW1Bit: - ; Store SREG - push r23 - in r23, 0x3F - ; Disable interrupts - cli - ; Pull down - sbi __w1_ddr, __w1_bit - cbi __w1_port, __w1_bit - ; Read Low Time (6 us) - ldi r24, 6 - call __delay_us - ; Tri-state (external pullup) - cbi __w1_ddr, __w1_bit - ; Tail of Read Sample Time (10 us) - ldi r24, 10 - call __delay_us - ; Read Sample - clc - sbic __w1_pin, __w1_bit - sec - rol r24 - ; Tail of Timeslot Duration - push r24 - ldi r24, 100 - call __delay_us - pop r24 - ; Restore SREG - out 0x3F, r23 - pop r23 - ret - -/*============================================================= - Reads byte from the bus - Returns: - byte read from the bus in r24 -===============================================================*/ -.global halReadW1 -.type halReadW1,@function -halReadW1: - push r25 - push r23 - ldi r25, 8 -__read_bit_again: - call halReadW1Bit - ror r24 - ror r23 - dec r25 - tst r25 - brne __read_bit_again - mov r24, r23 - pop r23 - pop r25 - ret - -/*============================================================= - Writes bit to the bus - Parameters: - value - bit that should be written to the bus. -===============================================================*/ -.global halWriteW1bit -.type halWriteW1bit,@function -halWriteW1bit: - ; Store SREG - push r23 - in r23, 0x3F - ; Disable interrupts - cli - ; Pull down - cbi __w1_port, __w1_bit - sbi __w1_ddr, __w1_bit - ; Write-1 Low Time - push r24 - ldi r24, 6 - call __delay_us - pop r24 - ; Write bit - ror r24 - brcc __w1_write_zero - ; Write-One -> tri-state (external pullup) - cbi __w1_ddr, __w1_bit -__w1_write_zero: - ; Tail of Timeslot Duration - push r24 - ldi r24, 100 - call __delay_us - pop r24 - ; Tri-state (external pullup) - cbi __w1_ddr, __w1_bit - ; Restore SREG - out 0x3F, r23 - pop r23 - ret - -/*============================================================= - Writes byte to the bus - Parameters: - value - byte that should be written to the bus. -===============================================================*/ -.global halWriteW1 -.type halWriteW1,@function -halWriteW1: - push r25 - ldi r25, 8 -__write_bit_again: - call halWriteW1bit - dec r25 - tst r25 - brne __write_bit_again - pop r25 - ret - -/*============================================================= - Delay in microseconds. - Parameters: - us - delay time in microseconds -===============================================================*/ -.global __delay_us -.type __delay_us,@function -__delay_us: -__w0: -.if FCPU==8000000 - nop - nop - nop - nop -.endif - dec r24 - tst r24 - brne __w0 - ret -; eof halW1.s -- cgit v1.2.3