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64a4e6b704
Cr50 cannot override the state of the power button. It was possible with dev cr50 chips, but the capability was removed in prod chips. Change the console command, so it is only used to get the state of the power button. Remove all of the commands used to override the power button. BUG=b:73557298 BRANCH=none TEST=none Change-Id: I99cb5e8a18dd972fba460c434364702f06a26305 Signed-off-by: Mary Ruthven <mruthven@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/926964 Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-by: Brian Norris <briannorris@chromium.org>
93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/* Copyright 2017 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 "gpio.h"
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#include "hooks.h"
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#include "physical_presence.h"
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#include "rbox.h"
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#include "registers.h"
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#include "system.h"
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#include "system_chip.h"
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#include "task.h"
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#include "timer.h"
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#define CPRINTS(format, args...) cprints(CC_RBOX, format, ## args)
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#define CPRINTF(format, args...) cprintf(CC_RBOX, format, ## args)
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/**
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* Enable/disable power button interrupt.
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*
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* @param enable Enable (!=0) or disable (==0)
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*/
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static void power_button_enable_interrupt(int enable)
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{
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if (enable) {
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/* Clear any leftover power button interrupts */
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GWRITE_FIELD(RBOX, INT_STATE, INTR_PWRB_IN_FED, 1);
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/* Enable power button interrupt */
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GWRITE_FIELD(RBOX, INT_ENABLE, INTR_PWRB_IN_FED, 1);
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task_enable_irq(GC_IRQNUM_RBOX0_INTR_PWRB_IN_FED_INT);
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} else {
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GWRITE_FIELD(RBOX, INT_ENABLE, INTR_PWRB_IN_FED, 0);
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task_disable_irq(GC_IRQNUM_RBOX0_INTR_PWRB_IN_FED_INT);
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}
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}
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static void power_button_handler(void)
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{
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CPRINTS("power button pressed");
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if (physical_detect_press() != EC_SUCCESS) {
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/* Not consumed by physical detect */
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#ifdef CONFIG_U2F
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/* Track last power button press for U2F */
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power_button_record();
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#endif
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}
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GWRITE_FIELD(RBOX, INT_STATE, INTR_PWRB_IN_FED, 1);
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}
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DECLARE_IRQ(GC_IRQNUM_RBOX0_INTR_PWRB_IN_FED_INT, power_button_handler, 1);
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#ifdef CONFIG_U2F
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static void power_button_init(void)
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{
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/*
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* Enable power button interrupts all the time for U2F.
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*
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* Ideally U2F should only enable physical presence after the start of
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* a U2F request (using atomic operations for the PP enable mask so it
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* plays nicely with CCD config), but that doesn't happen yet.
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*/
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power_button_enable_interrupt(1);
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}
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DECLARE_HOOK(HOOK_INIT, power_button_init, HOOK_PRIO_DEFAULT);
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#endif /* CONFIG_U2F */
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void board_physical_presence_enable(int enable)
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{
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#ifndef CONFIG_U2F
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/* Enable/disable power button interrupts */
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power_button_enable_interrupt(enable);
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#endif
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/* Stay awake while we're doing this, just in case. */
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if (enable)
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disable_sleep(SLEEP_MASK_PHYSICAL_PRESENCE);
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else
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enable_sleep(SLEEP_MASK_PHYSICAL_PRESENCE);
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}
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static int command_powerbtn(int argc, char **argv)
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{
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ccprintf("powerbtn: %s\n",
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rbox_powerbtn_is_pressed() ? "pressed\n" : "released\n");
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return EC_SUCCESS;
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}
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DECLARE_CONSOLE_COMMAND(powerbtn, command_powerbtn, "",
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"get the state of the power button");
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