mirror of
https://github.com/suchmememanyskill/TegraExplorer.git
synced 2024-11-23 04:12:04 +00:00
93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2019 CTCaer
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <soc/gpio.h>
|
|
#include <soc/pinmux.h>
|
|
#include <soc/pmc.h>
|
|
#include <soc/t210.h>
|
|
#include <utils/types.h>
|
|
|
|
static u8 reg_5v_dev = 0;
|
|
static bool batt_src = false;
|
|
|
|
void regulator_5v_enable(u8 dev)
|
|
{
|
|
// The power supply selection from battery or USB is automatic.
|
|
if (!reg_5v_dev)
|
|
{
|
|
// Fan and Rail power from internal 5V regulator (battery).
|
|
PINMUX_AUX(PINMUX_AUX_SATA_LED_ACTIVE) = 1;
|
|
gpio_config(GPIO_PORT_A, GPIO_PIN_5, GPIO_MODE_GPIO);
|
|
gpio_output_enable(GPIO_PORT_A, GPIO_PIN_5, GPIO_OUTPUT_ENABLE);
|
|
gpio_write(GPIO_PORT_A, GPIO_PIN_5, GPIO_HIGH);
|
|
batt_src = true;
|
|
|
|
// Fan and Rail power from USB 5V VDD.
|
|
PINMUX_AUX(PINMUX_AUX_USB_VBUS_EN0) = PINMUX_LPDR | 1;
|
|
gpio_config(GPIO_PORT_CC, GPIO_PIN_4, GPIO_MODE_GPIO);
|
|
gpio_output_enable(GPIO_PORT_CC, GPIO_PIN_4, GPIO_OUTPUT_ENABLE);
|
|
gpio_write(GPIO_PORT_CC, GPIO_PIN_4, GPIO_HIGH);
|
|
|
|
// Make sure GPIO power is enabled.
|
|
PMC(APBDEV_PMC_NO_IOPOWER) &= ~PMC_NO_IOPOWER_GPIO_IO_EN;
|
|
// Override power detect for GPIO AO IO rails.
|
|
PMC(APBDEV_PMC_PWR_DET_VAL) &= ~PMC_PWR_DET_GPIO_IO_EN;
|
|
}
|
|
reg_5v_dev |= dev;
|
|
}
|
|
|
|
void regulator_5v_disable(u8 dev)
|
|
{
|
|
reg_5v_dev &= ~dev;
|
|
|
|
if (!reg_5v_dev)
|
|
{
|
|
// Rail power from internal 5V regulator (battery).
|
|
gpio_write(GPIO_PORT_A, GPIO_PIN_5, GPIO_LOW);
|
|
gpio_output_enable(GPIO_PORT_A, GPIO_PIN_5, GPIO_OUTPUT_DISABLE);
|
|
gpio_config(GPIO_PORT_A, GPIO_PIN_5, GPIO_MODE_SPIO);
|
|
PINMUX_AUX(PINMUX_AUX_SATA_LED_ACTIVE) = PINMUX_PARKED | PINMUX_INPUT_ENABLE;
|
|
batt_src = false;
|
|
|
|
// Rail power from USB 5V VDD.
|
|
gpio_write(GPIO_PORT_CC, GPIO_PIN_4, GPIO_LOW);
|
|
gpio_output_enable(GPIO_PORT_CC, GPIO_PIN_4, GPIO_OUTPUT_DISABLE);
|
|
gpio_config(GPIO_PORT_CC, GPIO_PIN_4, GPIO_MODE_SPIO);
|
|
PINMUX_AUX(PINMUX_AUX_USB_VBUS_EN0) = PINMUX_IO_HV | PINMUX_LPDR | PINMUX_PARKED | PINMUX_INPUT_ENABLE;
|
|
|
|
// GPIO AO IO rails.
|
|
PMC(APBDEV_PMC_PWR_DET_VAL) |= PMC_PWR_DET_GPIO_IO_EN;
|
|
}
|
|
}
|
|
|
|
bool regulator_5v_get_dev_enabled(u8 dev)
|
|
{
|
|
return (reg_5v_dev & dev);
|
|
}
|
|
|
|
void regulator_5v_batt_src_enable(bool enable)
|
|
{
|
|
if (enable && !batt_src)
|
|
{
|
|
gpio_write(GPIO_PORT_A, GPIO_PIN_5, GPIO_HIGH);
|
|
batt_src = true;
|
|
}
|
|
else if (!enable && batt_src)
|
|
{
|
|
gpio_write(GPIO_PORT_A, GPIO_PIN_5, GPIO_LOW);
|
|
batt_src = false;
|
|
}
|
|
}
|