Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
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_RCV LED0 /* for LAN receive activity */
15#define LED_LAN_TX LED1 /* for LAN transmit 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 register_led_driver(int model, unsigned long cmd_reg, unsigned long data_reg);
29
30#ifdef CONFIG_CHASSIS_LCD_LED
31/* writes a string to the LCD display (if possible on this h/w) */
32void lcd_print(const char *str);
33#else
34#define lcd_print(str) do { } while (0)
35#endif
36
37#endif /* LED_H */