Feature/make pretty apps and ports (#80)
* Added pretty-apps and pretty-ports make targets * pretty-fied apps folder C files * Pretty-fied ports folder C and H files Co-authored-by: Steve Karg <skarg@users.sourceforge.net>
This commit is contained in:
Steve Karg
+106
-121
@@ -1,26 +1,26 @@
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/**************************************************************************
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*
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* Copyright (C) 2009 Steve Karg <skarg@users.sourceforge.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*********************************************************************/
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*
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* Copyright (C) 2009 Steve Karg <skarg@users.sourceforge.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*********************************************************************/
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdlib.h>
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@@ -44,7 +44,7 @@ static uint32_t Baud_Rate = 9600;
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/* At 76800 baud, 40 bit times would be about 0.520 milliseconds */
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/* At 115200 baud, 40 bit times would be about 0.347 milliseconds */
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/* 40 bits is 4 octets including a start and stop bit with each octet */
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#define Tturnaround (40UL)
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#define Tturnaround (40UL)
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/* turnaround_time_milliseconds = (Tturnaround*1000UL)/Baud_Rate; */
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/* buffer for storing received bytes - size must be power of two */
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@@ -54,46 +54,42 @@ static FIFO_BUFFER Receive_Buffer;
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static struct mstimer Silence_Timer;
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/****************************************************************************
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* DESCRIPTION: Determines the amount of silence time elapsed
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* RETURN: true if the amount of silence time has elapsed
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* NOTES: none
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*****************************************************************************/
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bool rs485_silence_time_elapsed(
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uint16_t milliseconds)
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* DESCRIPTION: Determines the amount of silence time elapsed
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* RETURN: true if the amount of silence time has elapsed
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* NOTES: none
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*****************************************************************************/
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bool rs485_silence_time_elapsed(uint16_t milliseconds)
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{
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return (mstimer_elapsed(&Silence_Timer) > milliseconds);
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}
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/****************************************************************************
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* DESCRIPTION: Resets the silence timer
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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void rs485_silence_time_reset(
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void)
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* DESCRIPTION: Resets the silence timer
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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void rs485_silence_time_reset(void)
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{
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mstimer_set(&Silence_Timer, 0);
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}
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/****************************************************************************
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* DESCRIPTION: Configures the RTS output
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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static void rs485_rts_init(
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void)
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* DESCRIPTION: Configures the RTS output
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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static void rs485_rts_init(void)
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{
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/* configure the port pin as an output */
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BIT_SET(DDRD, DDD4);
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}
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/****************************************************************************
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* DESCRIPTION: enable the transmit-enable line on the RS-485 transceiver
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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void rs485_rts_enable(
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bool enable)
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* DESCRIPTION: enable the transmit-enable line on the RS-485 transceiver
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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void rs485_rts_enable(bool enable)
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{
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if (enable) {
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BIT_SET(PORTD, PD4);
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@@ -103,23 +99,21 @@ void rs485_rts_enable(
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}
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/****************************************************************************
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* DESCRIPTION: enable the UART receiver and interrupt
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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static void rs485_receiver_enable(
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void)
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* DESCRIPTION: enable the UART receiver and interrupt
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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static void rs485_receiver_enable(void)
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{
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UCSR0B = _BV(TXEN0) | _BV(RXEN0) | _BV(RXCIE0);
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}
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/****************************************************************************
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* DESCRIPTION: delay for 40 bit times
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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void rs485_turnaround_delay(
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void)
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* DESCRIPTION: delay for 40 bit times
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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void rs485_turnaround_delay(void)
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{
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uint8_t nbytes = 4;
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@@ -144,10 +138,10 @@ void rs485_turnaround_delay(
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}
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/****************************************************************************
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* DESCRIPTION: Interrupt service routine for UART Receiver
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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* DESCRIPTION: Interrupt service routine for UART Receiver
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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ISR(USART0_RX_vect)
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{
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uint8_t data_byte;
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@@ -158,19 +152,18 @@ ISR(USART0_RX_vect)
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#ifdef MSTP_MONITOR
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UDR1 = data_byte;
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#endif
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(void) FIFO_Put(&Receive_Buffer, data_byte);
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(void)FIFO_Put(&Receive_Buffer, data_byte);
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}
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}
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/****************************************************************************
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* DESCRIPTION: Checks for data on the receive UART, and handles errors
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* RETURN: none
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* NOTES: none
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*****************************************************************************/
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bool rs485_byte_available(
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uint8_t * data_register)
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* DESCRIPTION: Checks for data on the receive UART, and handles errors
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* RETURN: none
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* NOTES: none
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*****************************************************************************/
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bool rs485_byte_available(uint8_t *data_register)
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{
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bool data_available = false; /* return value */
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bool data_available = false; /* return value */
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if (!FIFO_Empty(&Receive_Buffer)) {
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led_on_interval(LED_4, 1);
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@@ -184,25 +177,23 @@ bool rs485_byte_available(
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}
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/****************************************************************************
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* DESCRIPTION: returns an error indication if errors are enabled
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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bool rs485_receive_error(
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void)
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* DESCRIPTION: returns an error indication if errors are enabled
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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bool rs485_receive_error(void)
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{
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return false;
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}
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/****************************************************************************
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* DESCRIPTION: Transmits a frame using the UART
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* RETURN: none
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* NOTES: none
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*****************************************************************************/
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void rs485_bytes_send(
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uint8_t * buffer, /* data to send */
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* DESCRIPTION: Transmits a frame using the UART
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* RETURN: none
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* NOTES: none
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*****************************************************************************/
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void rs485_bytes_send(uint8_t *buffer, /* data to send */
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uint16_t nbytes)
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{ /* number of bytes of data */
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{ /* number of bytes of data */
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led_on(LED_5);
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while (!BIT_CHECK(UCSR0A, UDRE0)) {
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/* do nothing - wait until Tx buffer is empty */
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@@ -233,23 +224,21 @@ void rs485_bytes_send(
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}
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/****************************************************************************
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* DESCRIPTION: Returns the baud rate that we are currently running at
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* RETURN: baud rate in bps
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* NOTES: none
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*****************************************************************************/
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uint32_t rs485_baud_rate(
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void)
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* DESCRIPTION: Returns the baud rate that we are currently running at
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* RETURN: baud rate in bps
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* NOTES: none
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*****************************************************************************/
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uint32_t rs485_baud_rate(void)
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{
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return Baud_Rate;
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}
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/****************************************************************************
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* DESCRIPTION: configure the UART baud rate
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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static void rs485_baud_rate_configure(
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void)
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* DESCRIPTION: configure the UART baud rate
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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static void rs485_baud_rate_configure(void)
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{
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/* 2x speed mode */
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BIT_SET(UCSR0A, U2X0);
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@@ -258,12 +247,11 @@ static void rs485_baud_rate_configure(
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}
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/****************************************************************************
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* DESCRIPTION: set the UART baud rate to a standard value
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* RETURN: true if the baud rate is valid
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* NOTES: none
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*****************************************************************************/
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bool rs485_baud_rate_set(
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uint32_t baud)
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* DESCRIPTION: set the UART baud rate to a standard value
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* RETURN: true if the baud rate is valid
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* NOTES: none
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*****************************************************************************/
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bool rs485_baud_rate_set(uint32_t baud)
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{
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bool valid = true;
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uint8_t baud_k = 0;
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@@ -290,12 +278,11 @@ bool rs485_baud_rate_set(
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}
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/****************************************************************************
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* DESCRIPTION: initialize the hardware UART
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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static void rs485_usart_init(
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void)
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* DESCRIPTION: initialize the hardware UART
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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static void rs485_usart_init(void)
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{
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/* enable the internal pullup on RXD0 */
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BIT_CLEAR(DDRD, DDD0);
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@@ -314,12 +301,11 @@ static void rs485_usart_init(
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}
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/****************************************************************************
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* DESCRIPTION: read any non-volatile data
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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static void rs485_init_nvdata(
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void)
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* DESCRIPTION: read any non-volatile data
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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static void rs485_init_nvdata(void)
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{
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uint8_t baud_k = 9; /* from EEPROM value */
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@@ -354,15 +340,14 @@ static void rs485_init_nvdata(
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}
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/****************************************************************************
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* DESCRIPTION: initialize the module
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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void rs485_init(
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void)
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* DESCRIPTION: initialize the module
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* RETURN: nothing
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* NOTES: none
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*****************************************************************************/
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void rs485_init(void)
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{
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FIFO_Init(&Receive_Buffer, &Receive_Buffer_Data[0],
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(unsigned) sizeof(Receive_Buffer_Data));
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(unsigned)sizeof(Receive_Buffer_Data));
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rs485_silence_time_reset();
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rs485_rts_init();
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rs485_usart_init();
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