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cmd: Add axp command for reading values from AXP81x PMIC

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This is useful for boot scripts to be able to decide whether to
boot or not and whether to notify the user of what is wrong.

Signed-off-by: Ondrej Jirman <megous@megous.com>
This commit is contained in:
Ondrej Jirman
2018-07-09 08:11:46 +02:00
parent 915048fb9f
commit 42faed6a52
3 changed files with 172 additions and 0 deletions
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7
cmd/Kconfig
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@@ -762,6 +762,13 @@ config CMD_ADC
Shows ADC device info and permit printing one-shot analog converted
data from a named Analog to Digital Converter.
config CMD_AXP
bool "axp - Read information from AXP813 PMIC"
depends on AXP818_POWER
help
Shows A/D voltage, battery presence, battery capacity, charger
presence based on register values inside AXP813.
config CMD_BCB
bool "bcb"
depends on MMC

1
cmd/Makefile
View File

@@ -11,6 +11,7 @@ obj-y += help.o
obj-y += version.o
# command
obj-$(CONFIG_CMD_AXP) += axp.o
obj-$(CONFIG_CMD_AES) += aes.o
obj-$(CONFIG_CMD_AB_SELECT) += ab_select.o
obj-$(CONFIG_CMD_ADC) += adc.o

164
cmd/axp.c Normal file
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@@ -0,0 +1,164 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2018 Ondrej Jirman <megous@megous.com>
*/
#include <common.h>
#include <command.h>
#include <cli_hush.h>
#include <axp_pmic.h>
static int do_axp(cmd_tbl_t *cmdtp, int flag, int argc,
char *const argv[])
{
int ret = 0, val;
bool val_bool;
char buf[64];
if (argc < 2)
return CMD_RET_USAGE;
if (!strcmp(argv[1], "dump")) {
printf("AXP status:\n");
ret = axp_is_charging(&val_bool);
if (!ret)
printf(" charging: %s\n", val_bool ? "yes" : "no");
ret = axp_is_vbus_present(&val_bool);
if (!ret)
printf(" vbus_ok: %s\n", val_bool ? "yes" : "no");
ret = axp_is_battery_present(&val_bool);
if (!ret)
printf(" bat_ok: %s\n", val_bool ? "yes" : "no");
ret = axp_get_battery_voltage(&val);
if (!ret)
printf(" bat_voltage: %d uV\n", val);
ret = axp_get_battery_current(&val);
if (!ret)
printf(" bat_current: %d uA\n", val);
ret = axp_battery_get_capacity(&val);
if (!ret)
printf(" bat_capacity: %d %%\n", val);
ret = axp_usb_get_max_current(&val);
if (!ret)
printf(" vbus_imax: %d mA\n", val);
} else if (!strcmp(argv[1], "charging")) {
ret = axp_is_charging(&val_bool);
if (ret)
return CMD_RET_FAILURE;
snprintf(buf, sizeof buf, "ret=%d", !!val_bool);
set_local_var(buf, 1);
//int axp_usb_set_max_current(int mA);
} else if (!strcmp(argv[1], "vbus_ok")) {
ret = axp_is_vbus_present(&val_bool);
if (ret)
return CMD_RET_FAILURE;
snprintf(buf, sizeof buf, "ret=%d", !!val_bool);
set_local_var(buf, 1);
} else if (!strcmp(argv[1], "bat_ok")) {
ret = axp_is_battery_present(&val_bool);
if (ret)
return CMD_RET_FAILURE;
snprintf(buf, sizeof buf, "ret=%d", !!val_bool);
set_local_var(buf, 1);
} else if (!strcmp(argv[1], "bat_voltage")) {
ret = axp_get_battery_voltage(&val);
if (ret)
return CMD_RET_FAILURE;
snprintf(buf, sizeof buf, "ret=%d", val);
set_local_var(buf, 1);
} else if (!strcmp(argv[1], "bat_current")) {
ret = axp_get_battery_current(&val);
if (ret)
return CMD_RET_FAILURE;
snprintf(buf, sizeof buf, "ret=%d", val);
set_local_var(buf, 1);
} else if (!strcmp(argv[1], "bat_capacity")
|| !strcmp(argv[1], "bat_capacity5")) {
ret = axp_battery_get_capacity(&val);
if (ret)
return CMD_RET_FAILURE;
if (!strcmp(argv[1], "bat_capacity5")) {
// round to multiple of 5
int rem = val % 5;
if (rem > 2)
val += (5 - rem);
else
val -= rem;
}
snprintf(buf, sizeof buf, "ret=%d", val);
set_local_var(buf, 1);
} else if (!strcmp(argv[1], "vbus_imax")) {
if (argc == 3) {
val = simple_strtoul(argv[2], NULL, 10);
if (val == 0)
return CMD_RET_USAGE;
ret = axp_usb_set_max_current(val);
if (ret)
return CMD_RET_FAILURE;
} else if (argc == 2) {
ret = axp_usb_get_max_current(&val);
if (ret)
return CMD_RET_FAILURE;
snprintf(buf, sizeof buf, "ret=%d", val);
set_local_var(buf, 1);
} else
return CMD_RET_USAGE;
} else if (!strcmp(argv[1], "led_set")) {
if (argc < 3)
return CMD_RET_USAGE;
ret = axp_led_set(!strcmp(argv[2], "1"));
if (ret)
return CMD_RET_FAILURE;
} else if (!strcmp(argv[1], "led_chgctl")) {
ret = axp_led_set_charger_controlled();
if (ret)
return CMD_RET_FAILURE;
} else if (!strcmp(argv[1], "clr_reason")) {
ret = axp_clear_startup_reason();
if (ret)
return CMD_RET_FAILURE;
} else if (!strcmp(argv[1], "pok_fast")) {
ret = axp_pok_set_quick();
if (ret)
return CMD_RET_FAILURE;
} else
return CMD_RET_USAGE;
return CMD_RET_SUCCESS;
}
static char axp_help_text[] =
"dump - dump AXP device info\n"
"axp charging - Check if battery is charging\n"
"axp vbus_ok - Check if connected to USB charger\n"
"axp bat_ok - Check if battery is present/OK\n"
"axp bat_voltage - Return battery voltage in uV\n"
"axp bat_current - Return battery current in uA\n"
"axp bat_capacity - Return battery capacity in %\n"
"axp bat_capacity5 - As above rounded to multiples of 5\n"
"axp vbus_imax - Return max USB current in mA\n"
"axp vbus_imax <mA> - Set max USB current to <mA> value\n"
"axp led_set 1|0 - Turn charger led on/off\n"
"axp led_chgctl - Defer LED control to the charger\n"
// Especially useful for escaping UV lockout
"axp clr_reason - Clear startup/shutdown reason register\n"
"axp pok_fast - Set power on/off key to low latency mode";
U_BOOT_CMD(axp, 4, 1, do_axp, "AXP813 PMIC access", axp_help_text);