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https://github.com/gnuton/asuswrt-merlin.ng.git
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148 lines
4.5 KiB
C
148 lines
4.5 KiB
C
/*
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* <:copyright-BRCM:2017:DUAL/GPL:standard
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*
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* Copyright (c) 2017 Broadcom
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* All Rights Reserved
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed
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* to you under the terms of the GNU General Public License version 2
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* (the "GPL"), available at http://www.broadcom.com/licenses/GPLv2.php,
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* with the following added to such license:
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*
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* As a special exception, the copyright holders of this software give
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* you permission to link this software with independent modules, and
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* to copy and distribute the resulting executable under terms of your
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* choice, provided that you also meet, for each linked independent
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* module, the terms and conditions of the license of that module.
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* An independent module is a module which is not derived from this
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* software. The special exception does not apply to any modifications
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* of the software.
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*
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* Not withstanding the above, under no circumstances may you combine
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* this software in any way with any other Broadcom software provided
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* under a license other than the GPL, without Broadcom's express prior
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* written consent.
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*
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* :>
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*/
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#include "boardparms.h"
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#include "bcm_led.h"
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#include "bcm_gpio.h"
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#ifdef _CFE_
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#include "lib_types.h"
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#include "lib_printf.h"
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#include "lib_string.h"
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#include "bcm_map.h"
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#define printk printf
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#else // Linux
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <bcm_map_part.h>
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#include <linux/string.h>
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#endif
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// #define BCM_LED_DEBUG 1
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/*
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These are low level functions that can be called from CFE or from the Linux board driver
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The Linux board driver handles any necessary locking so these functions should not be called
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directly from elsewhere.
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*/
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/* These are defined the same as in
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* cfe/cfe/board/bcm63xx_ram/include/bcm63xx_util.h
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*/
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enum {
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LED_OFF,
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LED_ON
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};
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/**********************************************************************
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* Name : bcm_led_driver_set
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*
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* Description : Given a GPIO number and a state, configures the GPIO
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* for OUTPUT and sets it to the value in state [1,0]
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*
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* Parameters : [IN] num - GPIO number (physical GPIO)
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* [IN] state - state (1: LED_ON, 0: LED_OFF)
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*
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* Notes : Uses bcm_gpio functions to configure GPIO registers.
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* The caller function must handle the GPIO spinlock
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* when calling this function.
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*
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* Assumes GPIO_num is in functional mode 0 (not muxed).
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*********************************************************************/
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void bcm_led_driver_set(unsigned short num, unsigned short state)
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{
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#ifdef BCM_LED_DEBUG
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printk("LED %x set state %d\n",num,state);
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#endif
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/* Regular GPIO-driven LED */
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bcm_gpio_set_dir(num, 1);
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bcm_gpio_set_data(num, state);
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}
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/**********************************************************************
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* Name : bcm_led_driver_toggle
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*
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* Description : Given a GPIO number toggles its value
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*
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* Parameters : [IN] pin_num - GPIO number (physical GPIO)
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*
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* Notes : Uses bcm_gpio functions to configure GPIO registers.
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* The caller function must handle the GPIO spinlock
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* when calling this function.
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*
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* Assumes GPIO_num is in functional mode 0 (not muxed).
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*********************************************************************/
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void bcm_led_driver_toggle(unsigned short num)
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{
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bcm_gpio_set_data(num, 1 ^ bcm_gpio_get_data(num));
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}
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/**********************************************************************
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* Name : bcm_common_led_setAllSoftLedsOff
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*
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* Description : Turns off the PowerOn LED
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*********************************************************************/
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void bcm_common_led_setAllSoftLedsOff(void)
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{
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unsigned short gpio;
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int i = 0, rc;
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void* token = NULL;
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for(;;)
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{
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rc = BpGetLedGpio(i, &token, &gpio);
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if( rc == BP_MAX_ITEM_EXCEEDED )
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break;
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else if( rc == BP_SUCCESS && gpio != BP_GPIO_NONE )
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{
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if (gpio & BP_ACTIVE_LOW)
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bcm_led_driver_set(gpio, 1);
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else
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bcm_led_driver_set(gpio, 0);
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}
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else
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{
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token = 0;
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i++;
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}
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}
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return;
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}
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/**********************************************************************
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* Name : bcm_common_led_init
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*
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*********************************************************************/
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void bcm_common_led_init(void)
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{
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}
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