Port timer to mbed

[tmk_firmware.git] / common / timer.c

diff --git a/common/timer.c b/common/timer.c
deleted file mode 100644 (file)
index e0dec6c..0000000
--- a/common/timer.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
-Copyright 2011 Jun Wako <wakojun@gmail.com>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <stdint.h>
-#include "timer.h"
-
-
-// counter resolution 1ms
-// NOTE: union { uint32_t timer32; struct { uint16_t dummy; uint16_t timer16; }}
-volatile uint32_t timer_count = 0;
-
-void timer_init(void)
-{
-    // Timer0 CTC mode
-    TCCR0A = 0x02;
-
-#if TIMER_PRESCALER == 1
-    TCCR0B = 0x01;
-#elif TIMER_PRESCALER == 8
-    TCCR0B = 0x02;
-#elif TIMER_PRESCALER == 64
-    TCCR0B = 0x03;
-#elif TIMER_PRESCALER == 256
-    TCCR0B = 0x04;
-#elif TIMER_PRESCALER == 1024
-    TCCR0B = 0x05;
-#else
-#   error "Timer prescaler value is NOT vaild."
-#endif
-
-    OCR0A = TIMER_RAW_TOP;
-    TIMSK0 = (1<<OCIE0A);
-}
-
-inline
-void timer_clear(void)
-{
-    uint8_t sreg = SREG;
-    cli();
-    timer_count = 0;
-    SREG = sreg;
-}
-
-inline
-uint16_t timer_read(void)
-{
-    uint32_t t;
-
-    uint8_t sreg = SREG;
-    cli();
-    t = timer_count;
-    SREG = sreg;
-
-    return (t & 0xFFFF);
-}
-
-inline
-uint32_t timer_read32(void)
-{
-    uint32_t t;
-
-    uint8_t sreg = SREG;
-    cli();
-    t = timer_count;
-    SREG = sreg;
-
-    return t;
-}
-
-inline
-uint16_t timer_elapsed(uint16_t last)
-{
-    uint32_t t;
-
-    uint8_t sreg = SREG;
-    cli();
-    t = timer_count;
-    SREG = sreg;
-
-    return TIMER_DIFF_16((t & 0xFFFF), last);
-}
-
-inline
-uint32_t timer_elapsed32(uint32_t last)
-{
-    uint32_t t;
-
-    uint8_t sreg = SREG;
-    cli();
-    t = timer_count;
-    SREG = sreg;
-
-    return TIMER_DIFF_32(t, last);
-}
-
-// excecuted once per 1ms.(excess for just timer count?)
-ISR(TIMER0_COMPA_vect)
-{
-    timer_count++;
-}