xref: /openbmc/u-boot/include/status_led.h (revision 2d8d190c)

/*
 * (C) Copyright 2000-2004
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

/*
 * The purpose of this code is to signal the operational status of a
 * target which usually boots over the network; while running in
 * PCBoot, a status LED is blinking. As soon as a valid BOOTP reply
 * message has been received, the LED is turned off. The Linux
 * kernel, once it is running, will start blinking the LED again,
 * with another frequency.
 */

#ifndef _STATUS_LED_H_
#define	_STATUS_LED_H_

#ifdef CONFIG_LED_STATUS

#define LED_STATUS_PERIOD	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ)
#ifdef CONFIG_LED_STATUS1
#define LED_STATUS_PERIOD1	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ1)
#endif /* CONFIG_LED_STATUS1 */
#ifdef CONFIG_LED_STATUS2
#define LED_STATUS_PERIOD2	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ2)
#endif /* CONFIG_LED_STATUS2 */
#ifdef CONFIG_LED_STATUS3
#define LED_STATUS_PERIOD3	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ3)
#endif /* CONFIG_LED_STATUS3 */
#ifdef CONFIG_LED_STATUS4
#define LED_STATUS_PERIOD4	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ4)
#endif /* CONFIG_LED_STATUS4 */
#ifdef CONFIG_LED_STATUS5
#define LED_STATUS_PERIOD5	(CONFIG_SYS_HZ / CONFIG_LED_STATUS_FREQ5)
#endif /* CONFIG_LED_STATUS5 */

void status_led_init(void);
void status_led_tick (unsigned long timestamp);
void status_led_set  (int led, int state);

/*****  TQM8xxL  ********************************************************/
#if defined(CONFIG_TQM8xxL)
# define STATUS_LED_PAR		im_cpm.cp_pbpar
# define STATUS_LED_DIR		im_cpm.cp_pbdir
# define STATUS_LED_ODR		im_cpm.cp_pbodr
# define STATUS_LED_DAT		im_cpm.cp_pbdat

# define STATUS_LED_ACTIVE	1		/* LED on for bit == 1	*/

/*****  MVS v1  **********************************************************/
#elif (defined(CONFIG_MVS) && CONFIG_MVS < 2)
# define STATUS_LED_PAR		im_ioport.iop_pdpar
# define STATUS_LED_DIR		im_ioport.iop_pddir
# undef  STATUS_LED_ODR
# define STATUS_LED_DAT		im_ioport.iop_pddat

# define STATUS_LED_ACTIVE	1		/* LED on for bit == 1	*/

/*****  Someone else defines these  *************************************/
#elif defined(STATUS_LED_PAR)
  /*
   * ADVICE: Define in your board configuration file rather than
   * filling this file up with lots of custom board stuff.
   */

#elif defined(CONFIG_V38B)

# define STATUS_LED_ACTIVE	0		/* LED on for bit == 0 */

#elif defined(CONFIG_LED_STATUS_BOARD_SPECIFIC)
/* led_id_t is unsigned long mask */
typedef unsigned long led_id_t;

extern void __led_toggle (led_id_t mask);
extern void __led_init (led_id_t mask, int state);
extern void __led_set (led_id_t mask, int state);
void __led_blink(led_id_t mask, int freq);
#else
# error Status LED configuration missing
#endif
/************************************************************************/

#ifndef CONFIG_LED_STATUS_BOARD_SPECIFIC
# include <asm/status_led.h>
#endif

#endif	/* CONFIG_LED_STATUS	*/

/*
 * Coloured LEDs API
 */
#ifndef	__ASSEMBLY__
void coloured_LED_init(void);
void red_led_on(void);
void red_led_off(void);
void green_led_on(void);
void green_led_off(void);
void yellow_led_on(void);
void yellow_led_off(void);
void blue_led_on(void);
void blue_led_off(void);
#else
	.extern LED_init
	.extern red_led_on
	.extern red_led_off
	.extern yellow_led_on
	.extern yellow_led_off
	.extern green_led_on
	.extern green_led_off
	.extern blue_led_on
	.extern blue_led_off
#endif

#endif	/* _STATUS_LED_H_	*/