1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef LED_H 3#define LED_H 4 5#define LED7 0x80 /* top (or furthest right) LED */ 6#define LED6 0x40 7#define LED5 0x20 8#define LED4 0x10 9#define LED3 0x08 10#define LED2 0x04 11#define LED1 0x02 12#define LED0 0x01 /* bottom (or furthest left) LED */ 13 14#define LED_LAN_TX LED0 /* for LAN transmit activity */ 15#define LED_LAN_RCV LED1 /* for LAN receive activity */ 16#define LED_DISK_IO LED2 /* for disk activity */ 17#define LED_HEARTBEAT LED3 /* heartbeat */ 18 19/* values for pdc_chassis_lcd_info_ret_block.model: */ 20#define DISPLAY_MODEL_LCD 0 /* KittyHawk LED or LCD */ 21#define DISPLAY_MODEL_NONE 1 /* no LED or LCD */ 22#define DISPLAY_MODEL_LASI 2 /* LASI style 8 bit LED */ 23#define DISPLAY_MODEL_OLD_ASP 0x7F /* faked: ASP style 8 x 1 bit LED (only very old ASP versions) */ 24 25#define LED_CMD_REG_NONE 0 /* NULL == no addr for the cmd register */ 26 27/* register_led_driver() */ 28int __init register_led_driver(int model, unsigned long cmd_reg, unsigned long data_reg); 29 30/* registers the LED regions for procfs */ 31void __init register_led_regions(void); 32 33#ifdef CONFIG_CHASSIS_LCD_LED 34/* writes a string to the LCD display (if possible on this h/w) */ 35int lcd_print(const char *str); 36#else 37#define lcd_print(str) 38#endif 39 40/* main LED initialization function (uses PDC) */ 41int __init led_init(void); 42 43#endif /* LED_H */ 44