23e8090257
All drivers implemented so far are for chips which are only available on legacy x86 PCs. This commit moves them into a more appropriate folder, also making the cpu/x86/drivers/ folder ready for other x86 based SoCs.
119 lines
3.7 KiB
C
119 lines
3.7 KiB
C
/*
|
|
* Copyright (C) 2015, Intel Corporation. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its
|
|
* 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 HOLDER 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 "sys/clock.h"
|
|
#include "sys/etimer.h"
|
|
|
|
#include "contiki-conf.h"
|
|
#include "drivers/legacy_pc/rtc.h"
|
|
|
|
#if CLOCK_CONF_SECOND == 2
|
|
#define FREQ RTC_2_HZ
|
|
#elif CLOCK_CONF_SECOND == 4
|
|
#define FREQ RTC_4_HZ
|
|
#elif CLOCK_CONF_SECOND == 8
|
|
#define FREQ RTC_8_HZ
|
|
#elif CLOCK_CONF_SECOND == 16
|
|
#define FREQ RTC_16_HZ
|
|
#elif CLOCK_CONF_SECOND == 32
|
|
#define FREQ RTC_32_HZ
|
|
#elif CLOCK_CONF_SECOND == 64
|
|
#define FREQ RTC_64_HZ
|
|
#elif CLOCK_CONF_SECOND == 128
|
|
#define FREQ RTC_128_HZ
|
|
#elif CLOCK_CONF_SECOND == 256
|
|
#define FREQ RTC_256_HZ
|
|
#elif CLOCK_CONF_SECOND == 512
|
|
#define FREQ RTC_512_HZ
|
|
#elif CLOCK_CONF_SECOND == 1024
|
|
#define FREQ RTC_1024_HZ
|
|
#elif CLOCK_CONF_SECOND == 2048
|
|
#define FREQ RTC_2048_HZ
|
|
#elif CLOCK_CONF_SECOND == 4096
|
|
#define FREQ RTC_4096_HZ
|
|
#elif CLOCK_CONF_SECOND == 8192
|
|
#define FREQ RTC_8192_HZ
|
|
#else
|
|
#define FREQ -1
|
|
#error "RTC is being used thus CLOCK_CONF_SECOND has to be a value defined by rtc_frequency_t."
|
|
#endif
|
|
|
|
static volatile clock_time_t tick_count = 0;
|
|
|
|
static void
|
|
update_ticks(void)
|
|
{
|
|
clock_time_t expire = etimer_next_expiration_time();
|
|
|
|
tick_count++;
|
|
|
|
/* Notify etimer library if the next event timer has expired */
|
|
if(expire != 0 && tick_count >= expire) {
|
|
etimer_request_poll();
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
clock_init(void)
|
|
{
|
|
rtc_init(FREQ, update_ticks);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
clock_time_t
|
|
clock_time(void)
|
|
{
|
|
return tick_count;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
unsigned long
|
|
clock_seconds(void)
|
|
{
|
|
return tick_count / CLOCK_CONF_SECOND;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
clock_wait(clock_time_t t)
|
|
{
|
|
clock_time_t initial = tick_count;
|
|
|
|
while(tick_count < t + initial);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
clock_set_seconds(unsigned long sec)
|
|
{
|
|
/* Stubbed function */
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
clock_delay_usec(uint16_t t)
|
|
{
|
|
/* Stubbed function */
|
|
}
|