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Move power limit functions to common board code

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Logic for changing power limit is the same for all boards with GPUs. It
is still called from board_event() instead of in power_event() to
maintain the current behavior of checking every main cycle.

Signed-off-by: Tim Crawford <tcrawford@system76.com>
This commit is contained in:
Tim Crawford
2021-06-10 15:05:15 -06:00
committed by Jeremy Soller
parent 3f446e5c6e
commit a8229d9e62
16 changed files with 52 additions and 318 deletions
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39
src/board/system76/addw1/board.c
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@@ -7,7 +7,6 @@
#include <board/gctrl.h>
#include <board/gpio.h>
#include <board/kbc.h>
#include <board/peci.h>
#include <board/power.h>
#include <common/debug.h>
@@ -32,44 +31,8 @@ void board_init(void) {
gpio_set(&SWI_N, true);
}
// Set PL4 using PECI
static int set_power_limit(uint8_t watts) {
return peci_wr_pkg_config(
60, // index
0, // param
((uint32_t)watts) * 8
);
}
void board_on_ac(bool ac) {
uint8_t power_limit = ac ? POWER_LIMIT_AC : POWER_LIMIT_DC;
// Retry, timeout errors happen occasionally
for (int i = 0; i < 16; i++) {
int res = set_power_limit(power_limit);
DEBUG("set_power_limit %d = %d\n", power_limit, res);
if (res == 0x40) {
break;
} else if (res < 0) {
ERROR("set_power_limit failed: 0x%02X\n", -res);
} else {
ERROR("set_power_limit unknown response: 0x%02X\n", res);
}
}
}
void board_event(void) {
bool ac = !gpio_get(&ACIN_N);
static bool last_power_limit_ac = true;
// We don't use power_state because the latency needs to be low
if (gpio_get(&BUF_PLT_RST_N)) {
if (last_power_limit_ac != ac) {
board_on_ac(ac);
last_power_limit_ac = ac;
}
} else {
last_power_limit_ac = true;
}
power_set_limit();
if (main_cycle == 0) {
// Set keyboard LEDs