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Introducing Bootloader Development Kit (BDK)

Browse Source 
BDK will allow developers to use the full collection of drivers,
with limited editing, if any, for making payloads for Nintendo Switch.

Using a single source for everything will also help decoupling
Switch specific code and easily port it to other Tegra X1/X1+ platforms.
And maybe even to lower targets.

Everything is now centrilized into bdk folder.
Every module or project can utilize it by simply including it.

This is just the start and it will continue to improve.
This commit is contained in:
CTCaer
2020-06-14 15:25:21 +03:00
parent 9b1c61fbcf
commit 185526d134
386 changed files with 0 additions and 31374 deletions
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106
bdk/thermal/fan.c Normal file
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/*
* Fan driver for Nintendo Switch
*
* Copyright (c) 2018-2020 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 "fan.h"
#include "../power/regulator_5v.h"
#include "../soc/gpio.h"
#include "../soc/pinmux.h"
#include "../soc/t210.h"
#include "../utils/util.h"
void set_fan_duty(u32 duty)
{
static bool fan_init = false;
static u16 curr_duty = -1;
if (curr_duty == duty)
return;
if (!fan_init)
{
// Fan tachometer.
PINMUX_AUX(PINMUX_AUX_CAM1_PWDN) = PINMUX_TRISTATE | PINMUX_INPUT_ENABLE | PINMUX_PULL_UP | 1;
gpio_config(GPIO_PORT_S, GPIO_PIN_7, GPIO_MODE_GPIO);
gpio_output_enable(GPIO_PORT_S, GPIO_PIN_7, GPIO_OUTPUT_DISABLE);
PWM(PWM_CONTROLLER_PWM_CSR_1) = PWM_CSR_EN | (1 << 24); // Max PWM to disable fan.
PINMUX_AUX(PINMUX_AUX_LCD_GPIO2) = 1; // Set source to PWM1.
gpio_config(GPIO_PORT_V, GPIO_PIN_4, GPIO_MODE_SPIO); // Fan power mode.
fan_init = true;
}
if (duty > 236)
duty = 236;
// Inverted polarity.
u32 inv_duty = 236 - duty;
// If disabled send a 0 duty.
if (inv_duty == 236)
{
PWM(PWM_CONTROLLER_PWM_CSR_1) = PWM_CSR_EN | (1 << 24); // Bit 24 is absolute 0%.
regulator_disable_5v(REGULATOR_5V_FAN);
// Disable fan.
PINMUX_AUX(PINMUX_AUX_LCD_GPIO2) =
PINMUX_INPUT_ENABLE | PINMUX_PARKED | PINMUX_TRISTATE | PINMUX_PULL_DOWN; // Set source to PWM1.
}
else // Set PWM duty.
{
// Fan power supply.
regulator_enable_5v(REGULATOR_5V_FAN);
PWM(PWM_CONTROLLER_PWM_CSR_1) = PWM_CSR_EN | (inv_duty << 16);
// Enable fan.
PINMUX_AUX(PINMUX_AUX_LCD_GPIO2) = 1; // Set source to PWM1.
}
curr_duty = duty;
}
void get_fan_speed(u32 *duty, u32 *rpm)
{
if (rpm)
{
u32 irq_count = 1;
bool should_read = true;
bool irq_val = 0;
// Poll irqs for 2 seconds.
int timer = get_tmr_us() + 1000000;
while (timer - get_tmr_us())
{
irq_val = gpio_read(GPIO_PORT_S, GPIO_PIN_7);
if (irq_val && should_read)
{
irq_count++;
should_read = false;
}
else if (!irq_val)
should_read = true;
}
// Calculate rpm based on triggered interrupts.
*rpm = 60000000 / ((1000000 * 2) / irq_count);
}
if (duty)
*duty = 236 - ((PWM(PWM_CONTROLLER_PWM_CSR_1) >> 16) & 0xFF);
}

29
bdk/thermal/fan.h Normal file
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/*
* Fan driver for Nintendo Switch
*
* Copyright (c) 2018 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/>.
*/
#ifndef __FAN_H_
#define __FAN_H_
#include "../utils/types.h"
// Disable: 0 (0 RPM), min duty: 1 (960 RPM), max duty 235 (11000 RPM).
void set_fan_duty(u32 duty);
// Passing NULL ptr on either of the two, disables parsing of it.
void get_fan_speed(u32 *duty, u32 *rpm);
#endif /* __FAN_H_ */

65
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/*
* SOC/PCB Temperature driver for Nintendo Switch's TI TMP451
*
* Copyright (c) 2018 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 "tmp451.h"
#include "../soc/i2c.h"
u16 tmp451_get_soc_temp(bool intenger)
{
u8 val;
u16 temp = 0;
val = i2c_recv_byte(I2C_1, TMP451_I2C_ADDR, TMP451_SOC_TEMP_REG);
if (intenger)
return val;
temp = val << 8;
val = i2c_recv_byte(I2C_1, TMP451_I2C_ADDR, TMP451_SOC_TMP_DEC_REG);
temp |= ((val >> 4) * 625) / 100;
return temp;
}
u16 tmp451_get_pcb_temp(bool intenger)
{
u8 val;
u16 temp = 0;
val = i2c_recv_byte(I2C_1, TMP451_I2C_ADDR, TMP451_PCB_TEMP_REG);
if (intenger)
return val;
temp = val << 8;
val = i2c_recv_byte(I2C_1, TMP451_I2C_ADDR, TMP451_PCB_TMP_DEC_REG);
temp |= ((val >> 4) * 625) / 100;
return temp;
}
void tmp451_init()
{
// Disable ALARM and Range to 0 - 127 oC.
i2c_send_byte(I2C_1, TMP451_I2C_ADDR, TMP451_CONFIG_REG, 0x80);
// Set conversion rate to 32/s and make a read to update the reg.
i2c_send_byte(I2C_1, TMP451_I2C_ADDR, TMP451_CNV_RATE_REG, 9);
tmp451_get_soc_temp(false);
// Set rate to every 4 seconds.
i2c_send_byte(I2C_1, TMP451_I2C_ADDR, TMP451_CNV_RATE_REG, 2);
}

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/*
* SOC/PCB Temperature driver for Nintendo Switch's TI TMP451
*
* Copyright (c) 2018 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/>.
*/
#ifndef __TMP451_H_
#define __TMP451_H_
#include "../utils/types.h"
#define TMP451_I2C_ADDR 0x4C
#define TMP451_PCB_TEMP_REG 0x00
#define TMP451_SOC_TEMP_REG 0x01
#define TMP451_CONFIG_REG 0x09
#define TMP451_CNV_RATE_REG 0x0A
#define TMP451_SOC_TMP_DEC_REG 0x10
#define TMP451_PCB_TMP_DEC_REG 0x15
// If input is false, the return value is packed. MSByte is the integer in oC
// and the LSByte is the decimal point truncated to 2 decimal places.
// Otherwise it's an integer oC.
u16 tmp451_get_soc_temp(bool integer);
u16 tmp451_get_pcb_temp(bool integer);
void tmp451_init();
#endif /* __TMP451_H_ */