mirror of
https://github.com/Telecominfraproject/OpenCellular.git
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49312e06cd
When cr50 is not trying to do ccd, we dont need to monitor the devices. Disable device state detection interrupts and the AP and EC UARTs. BUG=none BRANCH=none TEST=gru and kevin monitor devices correctly when ccd is enabled, and dont monitor anything when it is disabled. Change-Id: Ic3f5974320486ff6dd0147c490a1c294cc2f6a76 Signed-off-by: Mary Ruthven <mruthven@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/356770 Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
106 lines
2.3 KiB
C
106 lines
2.3 KiB
C
/* Copyright 2016 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "console.h"
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#include "device_state.h"
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#include "hooks.h"
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static int enabled = 1;
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int device_get_state(enum device_type device)
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{
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return device_states[device].state;
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}
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void device_set_state(enum device_type device, enum device_state state)
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{
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if (device_states[device].state == state)
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return;
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device_states[device].state = state;
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}
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static void check_device_state(void)
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{
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int i;
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if (!enabled)
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return;
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for (i = 0; i < DEVICE_COUNT; i++)
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board_update_device_state(i);
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}
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DECLARE_HOOK(HOOK_SECOND, check_device_state, HOOK_PRIO_DEFAULT);
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static int device_has_interrupts(enum device_type device)
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{
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return (device_states[device].deferred &&
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device_states[device].detect_on != GPIO_COUNT &&
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device_states[device].detect_off != GPIO_COUNT);
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}
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static void disable_interrupts(enum device_type device)
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{
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if (!device_has_interrupts(device))
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return;
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/* Cancel any deferred callbacks */
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hook_call_deferred(device_states[device].deferred, -1);
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/* Disable gpio interrupts */
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gpio_disable_interrupt(device_states[device].detect_on);
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gpio_disable_interrupt(device_states[device].detect_off);
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}
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static void enable_interrupts(enum device_type device)
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{
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if (!device_has_interrupts(device))
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return;
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/* Enable gpio interrupts */
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gpio_enable_interrupt(device_states[device].detect_on);
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gpio_enable_interrupt(device_states[device].detect_off);
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}
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void device_detect_state_enable(int enable)
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{
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int i;
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enabled = enable;
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for (i = 0; i < DEVICE_COUNT; i++) {
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if (enabled) {
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enable_interrupts(i);
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board_update_device_state(i);
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} else {
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disable_interrupts(i);
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device_set_state(i, DEVICE_STATE_UNKNOWN);
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}
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}
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}
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static void print_state(const char *name, enum device_state state)
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{
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ccprintf("%-9s %s\n", name, state == DEVICE_STATE_ON ? "on" :
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state == DEVICE_STATE_OFF ? "off" : "unknown");
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}
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static int command_devices(int argc, char **argv)
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{
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int i;
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if (!enabled)
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ccprintf("Device monitoring disabled\n");
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else
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for (i = 0; i < DEVICE_COUNT; i++)
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print_state(device_states[i].name,
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device_states[i].state);
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return EC_SUCCESS;
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}
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DECLARE_CONSOLE_COMMAND(devices, command_devices,
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"",
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"Get the device states",
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NULL);
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