From 6746e37088ce8ba03529c1226bd216705edb2b1f Mon Sep 17 00:00:00 2001 From: tmk Date: Fri, 10 Apr 2015 01:25:48 +0900 Subject: Remove core library and build files --- protocol/serial_uart.c | 112 ------------------------------------------------- 1 file changed, 112 deletions(-) delete mode 100644 protocol/serial_uart.c (limited to 'protocol/serial_uart.c') diff --git a/protocol/serial_uart.c b/protocol/serial_uart.c deleted file mode 100644 index 35df27fd6e..0000000000 --- a/protocol/serial_uart.c +++ /dev/null @@ -1,112 +0,0 @@ -/* -Copyright 2013 Jun WAKO - -This software is licensed with a Modified BSD License. -All of this is supposed to be Free Software, Open Source, DFSG-free, -GPL-compatible, and OK to use in both free and proprietary applications. -Additions and corrections to this file are welcome. - - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -* Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - -* Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in - the documentation and/or other materials provided with the - distribution. - -* Neither the name of the copyright holders nor the names of - contributors may be used to endorse or promote products derived - from this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE -LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -POSSIBILITY OF SUCH DAMAGE. -*/ - -#include -#include -#include -#include "serial.h" - - -#if defined(SERIAL_UART_RTS_LO) && defined(SERIAL_UART_RTS_HI) - // Buffer state - // Empty: RBUF_SPACE == RBUF_SIZE(head==tail) - // Last 1 space: RBUF_SPACE == 2 - // Full: RBUF_SPACE == 1(last cell of rbuf be never used.) - #define RBUF_SPACE() (rbuf_head < rbuf_tail ? (rbuf_tail - rbuf_head) : (RBUF_SIZE - rbuf_head + rbuf_tail)) - // allow to send - #define rbuf_check_rts_lo() do { if (RBUF_SPACE() > 2) SERIAL_UART_RTS_LO(); } while (0) - // prohibit to send - #define rbuf_check_rts_hi() do { if (RBUF_SPACE() <= 2) SERIAL_UART_RTS_HI(); } while (0) -#else - #define rbuf_check_rts_lo() - #define rbuf_check_rts_hi() -#endif - - -void serial_init(void) -{ - SERIAL_UART_INIT(); -} - -// RX ring buffer -#define RBUF_SIZE 256 -static uint8_t rbuf[RBUF_SIZE]; -static uint8_t rbuf_head = 0; -static uint8_t rbuf_tail = 0; - -uint8_t serial_recv(void) -{ - uint8_t data = 0; - if (rbuf_head == rbuf_tail) { - return 0; - } - - data = rbuf[rbuf_tail]; - rbuf_tail = (rbuf_tail + 1) % RBUF_SIZE; - rbuf_check_rts_lo(); - return data; -} - -int16_t serial_recv2(void) -{ - uint8_t data = 0; - if (rbuf_head == rbuf_tail) { - return -1; - } - - data = rbuf[rbuf_tail]; - rbuf_tail = (rbuf_tail + 1) % RBUF_SIZE; - rbuf_check_rts_lo(); - return data; -} - -void serial_send(uint8_t data) -{ - while (!SERIAL_UART_TXD_READY) ; - SERIAL_UART_DATA = data; -} - -// USART RX complete interrupt -ISR(SERIAL_UART_RXD_VECT) -{ - uint8_t next = (rbuf_head + 1) % RBUF_SIZE; - if (next != rbuf_tail) { - rbuf[rbuf_head] = SERIAL_UART_DATA; - rbuf_head = next; - } - rbuf_check_rts_hi(); -} -- cgit v1.2.3