mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-01 21:02:27 +00:00
229094b245
BUG=none
TEST=Manually tested on Kunimitsu & Strago.
Removed the ALS sensor from DUT, using "taskinfo" console command
observed that the ALS task is not running.
BRANCH=none
Change-Id: I96cb720bd8d70033d433cdc2cd9cea9b56a3b389
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/301753
Commit-Ready: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Tested-by: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Reviewed-by: Shawn N <shawnn@chromium.org>
110 lines
2.2 KiB
C
110 lines
2.2 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
/* This provides the interface for any Ambient Light Sensors that are connected
|
|
* to the EC instead of the AP.
|
|
*/
|
|
|
|
#include "als.h"
|
|
#include "common.h"
|
|
#include "console.h"
|
|
#include "hooks.h"
|
|
#include "host_command.h"
|
|
#include "task.h"
|
|
#include "timer.h"
|
|
#include "util.h"
|
|
|
|
#define ALS_POLL_PERIOD SECOND
|
|
|
|
static int task_timeout = -1;
|
|
|
|
int als_read(enum als_id id, int *lux)
|
|
{
|
|
int af = als[id].attenuation_factor;
|
|
return als[id].read(lux, af);
|
|
}
|
|
|
|
void als_task(void)
|
|
{
|
|
int i, val;
|
|
uint16_t *mapped = (uint16_t *)host_get_memmap(EC_MEMMAP_ALS);
|
|
uint16_t als_data;
|
|
|
|
while (1) {
|
|
task_wait_event(task_timeout);
|
|
|
|
/* If task was disabled while waiting do not read from ALS */
|
|
if (task_timeout < 0)
|
|
continue;
|
|
|
|
for (i = 0; i < EC_ALS_ENTRIES && i < ALS_COUNT; i++) {
|
|
als_data = als_read(i, &val) == EC_SUCCESS ? val : 0;
|
|
mapped[i] = als_data;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void als_task_enable(void)
|
|
{
|
|
int fail_count = 0;
|
|
int err;
|
|
int i;
|
|
|
|
for (i = 0; i < EC_ALS_ENTRIES && i < ALS_COUNT; i++) {
|
|
err = als[i].init();
|
|
if (err) {
|
|
fail_count++;
|
|
ccprintf("%s ALS sensor failed to initialize, err=%d\n",
|
|
als[i].name, err);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If all the ALS filed to initialize, disable the ALS task.
|
|
*/
|
|
if (fail_count == ALS_COUNT)
|
|
task_timeout = -1;
|
|
else
|
|
task_timeout = ALS_POLL_PERIOD;
|
|
|
|
task_wake(TASK_ID_ALS);
|
|
}
|
|
|
|
static void als_task_disable(void)
|
|
{
|
|
task_timeout = -1;
|
|
}
|
|
|
|
DECLARE_HOOK(HOOK_CHIPSET_RESUME, als_task_enable, HOOK_PRIO_ALS_INIT);
|
|
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, als_task_disable, HOOK_PRIO_DEFAULT);
|
|
|
|
/*****************************************************************************/
|
|
/* Console commands */
|
|
|
|
#ifdef CONFIG_CMD_ALS
|
|
static int command_als(int argc, char **argv)
|
|
{
|
|
int i, rv, val;
|
|
|
|
for (i = 0; i < ALS_COUNT; i++) {
|
|
ccprintf("%s: ", als[i].name);
|
|
rv = als_read(i, &val);
|
|
switch (rv) {
|
|
case EC_SUCCESS:
|
|
ccprintf("%d lux\n", val);
|
|
break;
|
|
default:
|
|
ccprintf("Error %d\n", rv);
|
|
}
|
|
}
|
|
|
|
return EC_SUCCESS;
|
|
}
|
|
DECLARE_CONSOLE_COMMAND(als, command_als,
|
|
NULL,
|
|
"Print ALS values",
|
|
NULL);
|
|
#endif
|