diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h new file mode 100644 index 0000000..2bf1780 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h @@ -0,0 +1,33 @@ +#ifndef __NVBIOS_GPIO_H__ +#define __NVBIOS_GPIO_H__ + +struct nouveau_bios; + +enum dcb_gpio_func_name { + DCB_GPIO_PANEL_POWER = 0x01, + DCB_GPIO_TVDAC0 = 0x0c, + DCB_GPIO_TVDAC1 = 0x2d, + DCB_GPIO_PWM_FAN = 0x09, + DCB_GPIO_FAN_SENSE = 0x3d, + DCB_GPIO_UNUSED = 0xff +}; + +struct dcb_gpio_func { + u8 func; + u8 line; + u8 log[2]; + + /* so far, "param" seems to only have an influence on PWM-related + * GPIOs such as FAN_CONTROL and PANEL_BACKLIGHT_LEVEL. + * if param equals 1, hardware PWM is available + * if param equals 0, the host should toggle the GPIO itself + */ + u8 param; +}; + +u16 dcb_gpio_table(struct nouveau_bios *); +u16 dcb_gpio_entry(struct nouveau_bios *, int idx, int ent, u8 *ver); +int dcb_gpio_parse(struct nouveau_bios *, int idx, u8 func, u8 line, + struct dcb_gpio_func *); + +#endif |