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hekate/bdk/power/regulator_5v.c

76 lines
2.5 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;
void regulator_enable_5v(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);
// 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_disable_5v(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;
// 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_get_5v_dev_enabled(u8 dev)
{
return (reg_5v_dev & dev);
}