led.h

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#ifndef LED_H
#define LED_H

#define LED7        0x80        /* top (or furthest right) LED */
#define LED6        0x40
#define LED5        0x20
#define LED4        0x10
#define LED3        0x08
#define LED2        0x04
#define LED1        0x02
#define LED0        0x01        /* bottom (or furthest left) LED */

#define LED_LAN_TX  LED0        /* for LAN transmit activity */
#define LED_LAN_RCV LED1        /* for LAN receive activity */
#define LED_DISK_IO LED2        /* for disk activity */
#define LED_HEARTBEAT   LED3        /* heartbeat */

/* values for pdc_chassis_lcd_info_ret_block.model: */
#define DISPLAY_MODEL_LCD  0        /* KittyHawk LED or LCD */
#define DISPLAY_MODEL_NONE 1        /* no LED or LCD */
#define DISPLAY_MODEL_LASI 2        /* LASI style 8 bit LED */
#define DISPLAY_MODEL_OLD_ASP 0x7F  /* faked: ASP style 8 x 1 bit LED (only very old ASP versions) */

#define LED_CMD_REG_NONE 0      /* NULL == no addr for the cmd register */

/* register_led_driver() */
int __init register_led_driver(int model, unsigned long cmd_reg, unsigned long data_reg);

/* registers the LED regions for procfs */
void __init register_led_regions(void);

#ifdef CONFIG_CHASSIS_LCD_LED
/* writes a string to the LCD display (if possible on this h/w) */
int lcd_print(const char *str);
#else
#define lcd_print(str)
#endif

/* main LED initialization function (uses PDC) */ 
int __init led_init(void);

#endif /* LED_H */