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dgpu: Split out getting temp to a function

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Signed-off-by: Tim Crawford <tcrawford@system76.com>
This commit is contained in:
Tim Crawford
2024-04-30 11:19:53 -06:00
committed by Tim Crawford
parent 80cfa91b9f
commit 8f88c0c7aa
2 changed files with 26 additions and 9 deletions
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28
src/board/system76/common/dgpu.c
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@ -59,23 +59,33 @@ void dgpu_init(void) {
i2c_reset(&I2C_DGPU, true);
}
uint8_t dgpu_get_fan_duty(void) {
uint8_t duty;
if (power_state == POWER_STATE_S0 && gpio_get(&DGPU_PWR_EN) && !gpio_get(&GC6_FB_EN)) {
// Use I2CS if in S0 state
bool dgpu_get_temp(int16_t *const data) {
if (gpio_get(&DGPU_PWR_EN) && !gpio_get(&GC6_FB_EN)) {
int8_t rlts;
int16_t res = i2c_get(&I2C_DGPU, 0x4F, 0x00, &rlts, 1);
if (res == 1) {
dgpu_temp = (int16_t)rlts;
duty = fan_duty(&FAN, dgpu_temp);
*data = (int16_t)rlts;
return true;
} else {
DEBUG("DGPU temp error: %d\n", res);
// Default to 50% if there is an error
dgpu_temp = 0;
*data = 0;
return false;
}
}
*data = 0;
return true;
}
uint8_t dgpu_get_fan_duty(void) {
uint8_t duty;
if (power_state == POWER_STATE_S0) {
if (dgpu_get_temp(&dgpu_temp)) {
duty = fan_duty(&FAN, dgpu_temp);
} else {
duty = PWM_DUTY(50);
}
} else {
// Turn fan off if not in S0 state or GPU power not on
dgpu_temp = 0;
duty = PWM_DUTY(0);
}

7
src/board/system76/common/include/board/dgpu.h
View File

@ -3,6 +3,7 @@
#ifndef _BOARD_DGPU_H
#define _BOARD_DGPU_H
#include <stdbool.h>
#include <stdint.h>
#if CONFIG_HAVE_DGPU
@ -10,12 +11,18 @@
extern int16_t dgpu_temp;
void dgpu_init(void);
bool dgpu_get_temp(int16_t *const data);
uint8_t dgpu_get_fan_duty(void);
#else
static inline void dgpu_init(void) {}
static inline bool dgpu_get_temp(int16_t *const data) {
*data = 0;
return true;
}
static inline uint8_t dgpu_get_fan_duty(void) {
return 0;
}