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https://github.com/Telecominfraproject/OpenCellular.git
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c2b94fd184
This is part one of a series to merge the keyboard scan interface to be common across all platforms. This change just moves and renames files and APIs and removes some read code, and sets up protocol-specific CONFIG options. It makes the next CL which actually merges keyboard scanning easier to parse. BUG=chrome-os-partner:18360 BRANCH=none TEST=compile all boards; test keyboard on spring and link Change-Id: I815a40aae4e5d5f333b8501aff9656080533d913 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/46549 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
140 lines
3.7 KiB
C
140 lines
3.7 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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* Main routine for Chrome EC
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*/
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#include "clock.h"
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#include "common.h"
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#include "console.h"
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#include "cpu.h"
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#include "eeprom.h"
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#include "eoption.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 "jtag.h"
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#include "keyboard_scan.h"
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#include "system.h"
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#include "task.h"
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#include "timer.h"
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#include "uart.h"
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#include "watchdog.h"
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/* Console output macros */
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#define CPUTS(outstr) cputs(CC_SYSTEM, outstr)
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#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ## args)
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int main(void)
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{
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/*
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* Pre-initialization (pre-verified boot) stage. Initialization at
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* this level should do as little as possible, because verified boot
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* may need to jump to another image, which will repeat this
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* initialization. In particular, modules should NOT enable
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* interrupts.
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*/
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/* Configure the pin multiplexers and GPIOs */
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configure_board();
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jtag_pre_init();
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gpio_pre_init();
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#ifdef CONFIG_CONFIGURE_BOARD_LATE
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configure_board_late();
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#endif
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/*
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* Initialize interrupts, but don't enable any of them. Note that
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* task scheduling is not enabled until task_start() below.
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*/
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task_pre_init();
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/*
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* Initialize the system module. This enables the hibernate clock
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* source we need to calibrate the internal oscillator.
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*/
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system_pre_init();
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system_common_pre_init();
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#ifdef CONFIG_FLASH
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/*
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* Initialize flash and apply write protect if necessary. Requires
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* the reset flags calculated by system initialization.
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*/
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flash_pre_init();
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#endif
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/* Set the CPU clocks / PLLs. System is now running at full speed. */
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clock_init();
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/*
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* Initialize timer. Everything after this can be benchmarked.
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* get_time() and udelay() may now be used. usleep() requires task
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* scheduling, so cannot be used yet. Note that interrupts declared
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* via DECLARE_IRQ() call timer routines when profiling is enabled, so
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* timer init() must be before uart_init().
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*/
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timer_init();
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/* Main initialization stage. Modules may enable interrupts here. */
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cpu_init();
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/* Initialize UART. Console output functions may now be used. */
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uart_init();
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if (system_jumped_to_this_image()) {
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CPRINTF("[%T UART initialized after sysjump]\n");
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} else {
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CPUTS("\n\n--- UART initialized after reboot ---\n");
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CPUTS("[Reset cause: ");
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system_print_reset_flags();
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CPUTS("]\n");
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}
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CPRINTF("[Image: %s, %s]\n",
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system_get_image_copy_string(), system_get_build_info());
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#ifdef CONFIG_WATCHDOG
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/*
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* Intialize watchdog timer. All lengthy operations between now and
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* task_start() must periodically call watchdog_reload() to avoid
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* triggering a watchdog reboot. (This pretty much applies only to
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* verified boot, because all *other* lengthy operations should be done
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* by tasks.)
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*/
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watchdog_init();
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#endif
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/*
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* Verified boot needs to read the initial keyboard state and EEPROM
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* contents. EEPROM must be up first, so keyboard_scan can toggle
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* debugging settings via keys held at boot.
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*/
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#ifdef CONFIG_EEPROM
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eeprom_init();
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#endif
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#ifdef CONFIG_EOPTION
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eoption_init();
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#endif
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#ifdef CONFIG_TASK_KEYSCAN
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keyboard_scan_init();
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#endif
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/*
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* Initialize other driver modules. These can occur in any order.
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* Non-driver modules with tasks do their inits from their task
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* functions, not here.
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*/
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hook_notify(HOOK_INIT);
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/*
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* Print the init time. Not completely accurate because it can't take
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* into account the time before timer_init(), but it'll at least catch
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* the majority of the time.
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*/
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CPRINTF("[%T Inits done]\n");
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/* Launch task scheduling (never returns) */
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return task_start();
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}
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