mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-11 02:15:14 +00:00
05d387da78
The interrupts to detect when the falling edge on the UART signals are currently disabled and never reenabled. Power off is detected by polling and not through interrupts. This change removes all of those falling edge interrupts. BUG=none BRANCH=none TEST=cr50 can detect when the EC, AP, and Servo are off or on Change-Id: I0fd8a0d970f3235b26af6b90dd395ea7c75e0c17 Signed-off-by: Mary Ruthven <mruthven@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/385192 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
102 lines
2.1 KiB
C
102 lines
2.1 KiB
C
/* Copyright 2016 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.
|
|
*/
|
|
|
|
#include "console.h"
|
|
#include "device_state.h"
|
|
#include "hooks.h"
|
|
|
|
static int enabled = 1;
|
|
|
|
int device_get_state(enum device_type device)
|
|
{
|
|
return device_states[device].state;
|
|
}
|
|
|
|
void device_set_state(enum device_type device, enum device_state state)
|
|
{
|
|
if (device_states[device].state == state)
|
|
return;
|
|
|
|
device_states[device].state = state;
|
|
}
|
|
|
|
static void check_device_state(void)
|
|
{
|
|
int i;
|
|
|
|
if (!enabled)
|
|
return;
|
|
|
|
for (i = 0; i < DEVICE_COUNT; i++)
|
|
board_update_device_state(i);
|
|
}
|
|
DECLARE_HOOK(HOOK_SECOND, check_device_state, HOOK_PRIO_DEFAULT);
|
|
|
|
static int device_has_interrupts(enum device_type device)
|
|
{
|
|
return (device_states[device].deferred &&
|
|
device_states[device].detect != GPIO_COUNT);
|
|
}
|
|
|
|
static void disable_interrupts(enum device_type device)
|
|
{
|
|
if (!device_has_interrupts(device))
|
|
return;
|
|
|
|
/* Cancel any deferred callbacks */
|
|
hook_call_deferred(device_states[device].deferred, -1);
|
|
|
|
/* Disable gpio interrupts */
|
|
gpio_disable_interrupt(device_states[device].detect);
|
|
}
|
|
|
|
static void enable_interrupts(enum device_type device)
|
|
{
|
|
if (!device_has_interrupts(device))
|
|
return;
|
|
|
|
/* Enable gpio interrupts */
|
|
gpio_enable_interrupt(device_states[device].detect);
|
|
}
|
|
|
|
void device_detect_state_enable(int enable)
|
|
{
|
|
int i;
|
|
|
|
enabled = enable;
|
|
for (i = 0; i < DEVICE_COUNT; i++) {
|
|
if (enabled) {
|
|
enable_interrupts(i);
|
|
board_update_device_state(i);
|
|
} else {
|
|
disable_interrupts(i);
|
|
device_set_state(i, DEVICE_STATE_UNKNOWN);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void print_state(const char *name, enum device_state state)
|
|
{
|
|
ccprintf("%-9s %s\n", name, state == DEVICE_STATE_ON ? "on" :
|
|
state == DEVICE_STATE_OFF ? "off" : "unknown");
|
|
}
|
|
|
|
static int command_devices(int argc, char **argv)
|
|
{
|
|
int i;
|
|
|
|
if (!enabled)
|
|
ccprintf("Device monitoring disabled\n");
|
|
else
|
|
for (i = 0; i < DEVICE_COUNT; i++)
|
|
print_state(device_states[i].name,
|
|
device_states[i].state);
|
|
|
|
return EC_SUCCESS;
|
|
}
|
|
DECLARE_CONSOLE_COMMAND(devices, command_devices,
|
|
"",
|
|
"Get the device states");
|