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MK22: updated gpio driver

This commit is contained in:
Silvano Seva 2024-05-25 16:28:36 +02:00
parent 8842b98a52
commit b98ea17aee
6 changed files with 191 additions and 69 deletions
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3
platform/drivers/backlight/backlight_GDx.c
View File

@ -38,8 +38,7 @@ void backlight_init()
FTM0->SC = FTM_SC_PS(3) /* Prescaler divide by 8 */
| FTM_SC_CLKS(1); /* Enable timer */
gpio_setMode(LCD_BKLIGHT, OUTPUT);
gpio_setAlternateFunction(LCD_BKLIGHT, 2);
gpio_setMode(LCD_BKLIGHT, OUTPUT | ALTERNATE_FUNC(4));
}
void backlight_terminate()

10
platform/drivers/baseband/HR_C6000_GDx.cpp
View File

@ -171,13 +171,9 @@ template< class M >
void HR_Cx000< M >::uSpi_init()
{
gpio_setMode(DMR_CS, OUTPUT);
gpio_setMode(DMR_CLK, OUTPUT);
gpio_setMode(DMR_MOSI, OUTPUT);
gpio_setMode(DMR_MISO, INPUT);
gpio_setAlternateFunction(DMR_CLK, 0);
gpio_setAlternateFunction(DMR_MOSI, 0);
gpio_setAlternateFunction(DMR_MISO, 0);
gpio_setMode(DMR_CLK, OUTPUT | ALTERNATE_FUNC(2));
gpio_setMode(DMR_MOSI, OUTPUT | ALTERNATE_FUNC(2));
gpio_setMode(DMR_MISO, INPUT | ALTERNATE_FUNC(2));
SIM->SCGC6 |= SIM_SCGC6_SPI0_MASK;

112
platform/mcu/MK22FN512xxx12/drivers/gpio-native.h Normal file
View File

@ -0,0 +1,112 @@
/***************************************************************************
* Copyright (C) 2024 by Silvano Seva IU2KWO *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that 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 GPIO_NATIVE_H
#define GPIO_NATIVE_H
#include <peripherals/gpio.h>
#include <hwconfig.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* This file provides the interface for MK22 gpio.
*/
/**
* Maximum GPIO switching speed.
* For more details see microcontroller's reference manual and datasheet.
*/
enum Speed
{
SLOW = 0x0, ///< 2MHz
FAST = 0x1 ///< 50MHz
};
/**
* MK22 gpio devices
*/
extern const struct gpioDev GpioA;
extern const struct gpioDev GpioB;
extern const struct gpioDev GpioC;
extern const struct gpioDev GpioD;
extern const struct gpioDev GpioE;
/**
* Configure gpio pin functional mode.
*
* @param port: gpio port.
* @param pin: gpio pin number, between 0 and 15.
* @param mode: bit 7:0 set gpio functional mode, bit 15:8 manage gpio alternate
* function mapping.
*/
void gpio_setMode(const void *port, const uint8_t pin, const uint16_t mode);
/**
* Configure gpio pin maximum output speed.
*
* @param port: gpio port.
* @param pin: gpio pin number, between 0 and 15.
* @param spd: gpio output speed to be set.
*/
void gpio_setOutputSpeed(const void *port, const uint8_t pin, const enum Speed spd);
/**
* Set gpio pin to high logic level.
* NOTE: this operation is performed atomically.
*
* @param port: gpio port.
* @param pin: gpio pin number, between 0 and 15.
*/
static inline void gpio_setPin(const void *port, const uint8_t pin)
{
((GPIO_Type *)(port))->PSOR = (1 << pin);
}
/**
* Set gpio pin to low logic level.
* NOTE: this operation is performed atomically.
*
* @param port: gpio port.
* @param pin: gpio pin number, between 0 and 15.
*/
static inline void gpio_clearPin(const void *port, const uint8_t pin)
{
((GPIO_Type *)(port))->PCOR = (1 << pin);
}
/**
* Read gpio pin's logic level.
*
* @param port: gpio port.
* @param pin: gpio pin number, between 0 and 15.
* @return 1 if pin is at high logic level, 0 if pin is at low logic level.
*/
static inline uint8_t gpio_readPin(const void *port, const uint8_t pin)
{
GPIO_Type *g = (GPIO_Type *)(port);
return ((g->PDIR & (1 << pin)) != 0) ? 1 : 0;
}
#ifdef __cplusplus
}
#endif
#endif /* GPIO_NATIVE_H */

105
platform/mcu/MK22FN512xxx12/drivers/gpio.c
View File

@ -1,5 +1,5 @@
/***************************************************************************
* Copyright (C) 2020 - 2023 by Silvano Seva IU2KWO *
* Copyright (C) 2020 - 2024 by Silvano Seva IU2KWO *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
@ -14,9 +14,9 @@
* 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 <errno.h>
#include "MK22F51212.h"
#include <peripherals/gpio.h>
#include "gpio-native.h"
/*
* MK22 GPIO management is a bit convoluted: instead of having all the registers
@ -29,7 +29,7 @@
* PORT one. Ah, and, of course, this cannot be made using simple pointer
* addition/subtraction/multiplication...
*/
PORT_Type *getPortFromGPio(const GPIO_Type *gpio)
static PORT_Type *getPortFromGPio(const GPIO_Type *gpio)
{
PORT_Type *port;
@ -63,51 +63,53 @@ PORT_Type *getPortFromGPio(const GPIO_Type *gpio)
return port;
}
void gpio_setMode(void *port, uint8_t pin, enum Mode mode)
void gpio_setMode(const void *port, const uint8_t pin, const uint16_t mode)
{
GPIO_Type *g = (GPIO_Type *)(port);
PORT_Type *p = getPortFromGPio(g);
/* Clear previous settings */
g->PDDR &= ~(1 << pin);
p->PCR[pin] = 0;
switch(mode)
switch(mode & 0xFF)
{
case INPUT:
p->PCR[pin] |= PORT_PCR_MUX(1); /* Enable pin in GPIO mode */
p->PCR[pin] = PORT_PCR_MUX(1); /* Enable pin in GPIO mode */
g->PDDR &= ~(1 << pin); /* Input mode */
break;
case INPUT_PULL_UP:
p->PCR[pin] |= PORT_PCR_MUX(1); /* Enable pin in GPIO mode */
p->PCR[pin] |= PORT_PCR_PS(1); /* Pull up mode */
p->PCR[pin] |= PORT_PCR_PE(1); /* Pull up/down enable */
p->PCR[pin] = PORT_PCR_MUX(1) /* Enable pin in GPIO mode */
| PORT_PCR_PS(1) /* Pull up mode */
| PORT_PCR_PE(1); /* Pull up/down enable */
g->PDDR &= ~(1 << pin); /* Input mode */
break;
case INPUT_PULL_DOWN:
p->PCR[pin] |= PORT_PCR_MUX(1); /* Enable pin in GPIO mode */
p->PCR[pin] &= ~PORT_PCR_PS(1); /* Pull down mode */
p->PCR[pin] |= PORT_PCR_PE(1); /* Pull up/down enable */
p->PCR[pin] = PORT_PCR_MUX(1) /* Enable pin in GPIO mode */
| PORT_PCR_PE(1); /* Pull up/down enable */
g->PDDR &= ~(1 << pin); /* Input mode */
break;
/*
* case INPUT_ANALOG:
* NOTE: analog input mode unimplemented here for hardware structure
* reasons.
*/
case ANALOG:
p->PCR[pin] = PORT_PCR_MUX(0); /* Enable pin in AF0 mode */
g->PDDR &= ~(1 << pin); /* Input mode */
break;
case OUTPUT:
p->PCR[pin] |= PORT_PCR_MUX(1); /* Enable pin in GPIO mode */
p->PCR[pin] = PORT_PCR_MUX(1); /* Enable pin in GPIO mode */
g->PDDR |= (1 << pin); /* Output mode */
break;
case OPEN_DRAIN:
p->PCR[pin] |= PORT_PCR_MUX(1); /* Enable pin in GPIO mode */
p->PCR[pin] |= PORT_PCR_ODE(1); /* Enable open drain mode */
p->PCR[pin] = PORT_PCR_MUX(1) /* Enable pin in GPIO mode */
| PORT_PCR_ODE(1); /* Enable open drain mode */
g->PDDR |= (1 << pin); /* Output mode */
break;
case OPEN_DRAIN_PU:
p->PCR[pin] = PORT_PCR_MUX(1) /* Enable pin in GPIO mode */
| PORT_PCR_ODE(1) /* Enable open drain mode */
| PORT_PCR_PS(1) /* Pull up mode */
| PORT_PCR_PE(1); /* Pull up/down enable */
g->PDDR |= (1 << pin); /* Output mode */
break;
@ -124,27 +126,25 @@ void gpio_setMode(void *port, uint8_t pin, enum Mode mode)
*/
default:
p->PCR[pin] |= PORT_PCR_MUX(1); /* Enable pin in GPIO mode */
p->PCR[pin] = PORT_PCR_MUX(1); /* Enable pin in GPIO mode */
g->PDDR &= ~(1 << pin); /* Input mode */
break;
}
}
void gpio_setAlternateFunction(void *port, uint8_t pin, uint8_t afNum)
uint8_t af = (mode >> 8) & 0xFF;
if(af > 1)
{
GPIO_Type *g = (GPIO_Type *)(port);
PORT_Type *p = getPortFromGPio(g);
p->PCR[pin] &= ~PORT_PCR_MUX_MASK; /* Clear old configuration */
p->PCR[pin] |= PORT_PCR_MUX(2 + afNum); /* Set new AF, range 0 - 7 */
p->PCR[pin] |= PORT_PCR_MUX(af); /* Set new AF, range 0 - 7 */
}
}
void gpio_setOutputSpeed(void *port, uint8_t pin, enum Speed spd)
void gpio_setOutputSpeed(const void *port, uint8_t pin, enum Speed spd)
{
GPIO_Type *g = (GPIO_Type *)(port);
PORT_Type *p = getPortFromGPio(g);
if(spd >= FAST)
if(spd == FAST)
{
p->PCR[pin] |= PORT_PCR_SRE(1);
}
@ -154,23 +154,42 @@ void gpio_setOutputSpeed(void *port, uint8_t pin, enum Speed spd)
}
}
void gpio_setPin(void *port, uint8_t pin)
static int gpioApi_mode(const struct gpioDev *dev, const uint8_t pin,
const uint16_t mode)
{
((GPIO_Type *)(port))->PSOR = (1 << pin);
if(pin > 15)
return -EINVAL;
gpio_setMode((void *) dev->priv, pin, mode);
return 0;
}
void gpio_clearPin(void *port, uint8_t pin)
static void gpioApi_set(const struct gpioDev *dev, const uint8_t pin)
{
((GPIO_Type *)(port))->PCOR = (1 << pin);
gpio_setPin((void *) dev->priv, pin);
}
void gpio_togglePin(void *port, uint8_t pin)
static void gpioApi_clear(const struct gpioDev *dev, const uint8_t pin)
{
((GPIO_Type *)(port))->PTOR ^= (1 << pin);
gpio_clearPin((void *) dev->priv, pin);
}
uint8_t gpio_readPin(const void *port, uint8_t pin)
static bool gpioApi_read(const struct gpioDev *dev, const uint8_t pin)
{
GPIO_Type *g = (GPIO_Type *)(port);
return ((g->PDIR & (1 << pin)) != 0) ? 1 : 0;
uint8_t val = gpio_readPin(dev->priv, pin);
return (val != 0) ? true : false;
}
static const struct gpioApi gpioApi =
{
.mode = gpioApi_mode,
.set = gpioApi_set,
.clear = gpioApi_clear,
.read = gpioApi_read
};
const struct gpioDev GpioA = { .api = &gpioApi, .priv = GPIOA };
const struct gpioDev GpioB = { .api = &gpioApi, .priv = GPIOB };
const struct gpioDev GpioC = { .api = &gpioApi, .priv = GPIOC };
const struct gpioDev GpioD = { .api = &gpioApi, .priv = GPIOD };
const struct gpioDev GpioE = { .api = &gpioApi, .priv = GPIOE };

6
platform/targets/DM-1801/platform.c
View File

@ -67,10 +67,8 @@ void platform_init()
/*
* Initialise I2C driver, once for all the modules
*/
gpio_setMode(I2C_SDA, OPEN_DRAIN);
gpio_setMode(I2C_SCL, OPEN_DRAIN);
gpio_setAlternateFunction(I2C_SDA, 3);
gpio_setAlternateFunction(I2C_SCL, 3);
gpio_setMode(I2C_SDA, OPEN_DRAIN | ALTERNATE_FUNC(5));
gpio_setMode(I2C_SCL, OPEN_DRAIN | ALTERNATE_FUNC(5));
i2c0_init();
}

6
platform/targets/GD-77/platform.c
View File

@ -67,10 +67,8 @@ void platform_init()
/*
* Initialise I2C driver, once for all the modules
*/
gpio_setMode(I2C_SDA, OPEN_DRAIN);
gpio_setMode(I2C_SCL, OPEN_DRAIN);
gpio_setAlternateFunction(I2C_SDA, 3);
gpio_setAlternateFunction(I2C_SCL, 3);
gpio_setMode(I2C_SDA, OPEN_DRAIN | ALTERNATE_FUNC(5));
gpio_setMode(I2C_SCL, OPEN_DRAIN | ALTERNATE_FUNC(5));
i2c0_init();
}