mirror of
https://github.com/Telecominfraproject/OpenCellular.git
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ffac23c0ea
Our code base contains a lot of debug messages in this pattern:
CPRINTF("[%T xxx]\n") or ccprintf("[%T xxx]\n")
The strings are taking up spaces in the EC binaries, so let's refactor
this by adding cprints() and ccprints().
cprints() is just like cprintf(), except that it adds the brackets
and the timestamp. ccprints() is equivalent to cprints(CC_CONSOLE, ...)
This saves us hundreds of bytes in EC binaries.
BUG=chromium:374575
TEST=Build and check flash size
BRANCH=None
Change-Id: Ifafe8dc1b80e698b28ed42b70518c7917b49ee51
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/200490
Reviewed-by: Randall Spangler <rspangler@chromium.org>
129 lines
3.2 KiB
C
129 lines
3.2 KiB
C
/* Copyright (c) 2013 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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/* Switch module for Chrome EC */
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#include "common.h"
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#include "console.h"
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#include "flash.h"
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#include "gpio.h"
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#include "hooks.h"
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#include "host_command.h"
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#include "lid_switch.h"
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#include "power_button.h"
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#include "switch.h"
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#include "util.h"
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/* Console output macros */
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#define CPUTS(outstr) cputs(CC_SWITCH, outstr)
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#define CPRINTS(format, args...) cprints(CC_SWITCH, format, ## args)
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static uint8_t *memmap_switches;
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/**
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* Update status of non-debounced switches.
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*
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* Note that deferred functions are called in the same context as lid and
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* power button changes, so we don't need a mutex.
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*/
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static void switch_update(void)
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{
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static uint8_t prev;
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/* Make sure this is safe to call before power_button_init() */
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if (!memmap_switches)
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return;
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prev = *memmap_switches;
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if (power_button_is_pressed())
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*memmap_switches |= EC_SWITCH_POWER_BUTTON_PRESSED;
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else
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*memmap_switches &= ~EC_SWITCH_POWER_BUTTON_PRESSED;
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if (lid_is_open())
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*memmap_switches |= EC_SWITCH_LID_OPEN;
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else
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*memmap_switches &= ~EC_SWITCH_LID_OPEN;
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if ((flash_get_protect() & EC_FLASH_PROTECT_GPIO_ASSERTED) == 0)
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*memmap_switches |= EC_SWITCH_WRITE_PROTECT_DISABLED;
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else
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*memmap_switches &= ~EC_SWITCH_WRITE_PROTECT_DISABLED;
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#ifdef CONFIG_SWITCH_DEDICATED_RECOVERY
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if (gpio_get_level(GPIO_RECOVERY_L) == 0)
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*memmap_switches |= EC_SWITCH_DEDICATED_RECOVERY;
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else
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*memmap_switches &= ~EC_SWITCH_DEDICATED_RECOVERY;
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#endif
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if (prev != *memmap_switches)
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CPRINTS("SW 0x%02x", *memmap_switches);
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}
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DECLARE_DEFERRED(switch_update);
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DECLARE_HOOK(HOOK_LID_CHANGE, switch_update, HOOK_PRIO_DEFAULT);
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DECLARE_HOOK(HOOK_POWER_BUTTON_CHANGE, switch_update, HOOK_PRIO_DEFAULT);
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static void switch_init(void)
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{
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/* Set up memory-mapped switch positions */
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memmap_switches = host_get_memmap(EC_MEMMAP_SWITCHES);
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*memmap_switches = 0;
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switch_update();
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/* Switch data is now present */
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*host_get_memmap(EC_MEMMAP_SWITCHES_VERSION) = 1;
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#ifdef CONFIG_SWITCH_DEDICATED_RECOVERY
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/* Enable interrupts, now that we've initialized */
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gpio_enable_interrupt(GPIO_RECOVERY_L);
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#endif
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/*
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* TODO(crosbug.com/p/23793): It's weird that flash_common.c owns
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* reading the write protect signal, but we enable the interrupt for it
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* here. Take ownership of WP back, or refactor it to its own module.
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*/
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#ifdef CONFIG_WP_ACTIVE_HIGH
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gpio_enable_interrupt(GPIO_WP);
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#else
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gpio_enable_interrupt(GPIO_WP_L);
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#endif
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}
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DECLARE_HOOK(HOOK_INIT, switch_init, HOOK_PRIO_DEFAULT);
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void switch_interrupt(enum gpio_signal signal)
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{
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hook_call_deferred(switch_update, 0);
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}
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static int command_mmapinfo(int argc, char **argv)
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{
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uint8_t *memmap_switches = host_get_memmap(EC_MEMMAP_SWITCHES);
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uint8_t val = *memmap_switches;
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int i;
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const char *explanation[] = {
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"lid_open",
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"powerbtn",
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"wp_off",
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"kbd_rec",
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"gpio_rec",
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"fake_dev",
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};
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ccprintf("memmap switches = 0x%x\n", val);
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for (i = 0; i < ARRAY_SIZE(explanation); i++)
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if (val & (1 << i))
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ccprintf(" %s\n", explanation[i]);
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return EC_SUCCESS;
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}
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DECLARE_CONSOLE_COMMAND(mmapinfo, command_mmapinfo,
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NULL,
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"Print memmap switch state",
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NULL);
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