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/* Copyright 2022 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "cbi.h"
#include "common.h"
#include "compile_time_macros.h"
#include "console.h"
#include "cros_board_info.h"
#include "fw_config.h"
#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ##args)
static union brask_cbi_fw_config fw_config;
BUILD_ASSERT(sizeof(fw_config) == sizeof(uint32_t));
/*
* FW_CONFIG defaults for brask if the CBI.FW_CONFIG data is not
* initialized.
*/
static const union brask_cbi_fw_config fw_config_defaults = {
.audio = DB_NAU88L25B_I2S,
.bj_power = BJ_135W,
};
/*
* Barrel-jack power adapter ratings.
*/
static const struct {
int voltage;
int current;
} bj_power[] = {
[BJ_135W] = { /* 0 - 135W (also default) */
.voltage = 19500,
.current = 6920
},
[BJ_230W] = { /* 1 - 230W */
.voltage = 19500,
.current = 11800
}
};
/****************************************************************************
* Brask FW_CONFIG access
*/
void board_init_fw_config(void)
{
if (cbi_get_fw_config(&fw_config.raw_value)) {
CPRINTS("CBI: Read FW_CONFIG failed, using board defaults");
fw_config = fw_config_defaults;
}
}
void ec_bj_power(uint32_t *voltage, uint32_t *current)
{
unsigned int bj;
bj = fw_config.bj_power;
/* Out of range value defaults to 0 */
if (bj >= ARRAY_SIZE(bj_power))
bj = 0;
*voltage = bj_power[bj].voltage;
*current = bj_power[bj].current;
}
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