789e527adf
Rewrite the whole driver and drop the own code to calculate load average, disk and LAN load. Switch instead to use the in-kernel LED subsystem, which gives us quite some advantages, e.g. - existing triggers for heartbeat and disk/lan activity can be used - users can configre the LEDs at will to any existing trigger via /sys/class/leds - less overhead since we don't need to run own timers - fully integrated in Linux and as such cleaner code. Note that the driver now depends on CONFIG_LEDS_CLASS which has to be built-in and not as module. Signed-off-by: Helge Deller <deller@gmx.de>
37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef LED_H
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#define LED_H
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#define LED7 0x80 /* top (or furthest right) LED */
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#define LED6 0x40
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#define LED5 0x20
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#define LED4 0x10
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#define LED3 0x08
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#define LED2 0x04
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#define LED1 0x02
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#define LED0 0x01 /* bottom (or furthest left) LED */
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#define LED_LAN_RCV LED0 /* for LAN receive activity */
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#define LED_LAN_TX LED1 /* for LAN transmit activity */
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#define LED_DISK_IO LED2 /* for disk activity */
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#define LED_HEARTBEAT LED3 /* heartbeat */
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/* values for pdc_chassis_lcd_info_ret_block.model: */
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#define DISPLAY_MODEL_LCD 0 /* KittyHawk LED or LCD */
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#define DISPLAY_MODEL_NONE 1 /* no LED or LCD */
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#define DISPLAY_MODEL_LASI 2 /* LASI style 8 bit LED */
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#define DISPLAY_MODEL_OLD_ASP 0x7F /* faked: ASP style 8 x 1 bit LED (only very old ASP versions) */
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#define LED_CMD_REG_NONE 0 /* NULL == no addr for the cmd register */
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/* register_led_driver() */
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int register_led_driver(int model, unsigned long cmd_reg, unsigned long data_reg);
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#ifdef CONFIG_CHASSIS_LCD_LED
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/* writes a string to the LCD display (if possible on this h/w) */
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void lcd_print(const char *str);
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#else
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#define lcd_print(str) do { } while (0)
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#endif
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#endif /* LED_H */
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