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1/* SPDX-License-Identifier: MIT */2#ifndef __NVBIOS_GPIO_H__3#define __NVBIOS_GPIO_H__4enum dcb_gpio_func_name {5 DCB_GPIO_PANEL_POWER = 0x01,6 DCB_GPIO_FAN = 0x09,7 DCB_GPIO_TVDAC0 = 0x0c,8 DCB_GPIO_THERM_EXT_POWER_EVENT = 0x10,9 DCB_GPIO_TVDAC1 = 0x2d,10 DCB_GPIO_FAN_SENSE = 0x3d,11 DCB_GPIO_POWER_ALERT = 0x4c,12 DCB_GPIO_EXT_POWER_LOW = 0x79,13 DCB_GPIO_LOGO_LED_PWM = 0x84,14 DCB_GPIO_UNUSED = 0xff,15 DCB_GPIO_VID0 = 0x04,16 DCB_GPIO_VID1 = 0x05,17 DCB_GPIO_VID2 = 0x06,18 DCB_GPIO_VID3 = 0x1a,19 DCB_GPIO_VID4 = 0x73,20 DCB_GPIO_VID5 = 0x74,21 DCB_GPIO_VID6 = 0x75,22 DCB_GPIO_VID7 = 0x76,23 DCB_GPIO_VID_PWM = 0x81,24};25 26#define DCB_GPIO_LOG_DIR 0x0227#define DCB_GPIO_LOG_DIR_OUT 0x0028#define DCB_GPIO_LOG_DIR_IN 0x0229#define DCB_GPIO_LOG_VAL 0x0130#define DCB_GPIO_LOG_VAL_LO 0x0031#define DCB_GPIO_LOG_VAL_HI 0x0132 33struct dcb_gpio_func {34 u8 func;35 u8 line;36 u8 log[2];37 38 /* so far, "param" seems to only have an influence on PWM-related39 * GPIOs such as FAN_CONTROL and PANEL_BACKLIGHT_LEVEL.40 * if param equals 1, hardware PWM is available41 * if param equals 0, the host should toggle the GPIO itself42 */43 u8 param;44};45 46u16 dcb_gpio_table(struct nvkm_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len);47u16 dcb_gpio_entry(struct nvkm_bios *, int idx, int ent, u8 *ver, u8 *len);48u16 dcb_gpio_parse(struct nvkm_bios *, int idx, int ent, u8 *ver, u8 *len,49 struct dcb_gpio_func *);50u16 dcb_gpio_match(struct nvkm_bios *, int idx, u8 func, u8 line,51 u8 *ver, u8 *len, struct dcb_gpio_func *);52#endif53