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cpu/atmega: use power.h defines instead of direct register access

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This commit is contained in:
Robert Hartung 2017-09-14 10:35:06 +02:00
parent 23f4f9be73
commit 914025973d
8 changed files with 6 additions and 18 deletions
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8
boards/arduino-atmega-common/include/periph_conf.h
View File

@ -133,14 +133,6 @@ extern "C" {
* @{
*/
#define SPI_NUMOF 1 /* set to 0 to disable SPI */
#ifdef CPU_ATMEGA328P
#define MEGA_PRR PRR /* Power Reduction Register is PRR */
#endif
#ifdef CPU_ATMEGA2560
#define MEGA_PRR PRR0 /* Power Reduction Register is PRR0 */
#endif
/** @} */
/**

1
boards/waspmote-pro/include/periph_conf.h
View File

@ -101,7 +101,6 @@ extern "C" {
* @{
*/
#define SPI_NUMOF 1 /* set to 0 to disable SPI */
#define MEGA_PRR PRR0 /* Power Reduction Register */
/** @} */
/**

1
cpu/atmega1281/include/periph_cpu.h
View File

@ -48,7 +48,6 @@ enum {
*/
#define I2C_PORT_REG PORTD
#define I2C_PIN_MASK (1 << PORTD0) | (1 << PORTD1)
#define I2C_POWER_REG PRR0
/** @} */
#ifdef __cplusplus

1
cpu/atmega2560/include/periph_cpu.h
View File

@ -50,7 +50,6 @@ enum {
*/
#define I2C_PORT_REG PORTD
#define I2C_PIN_MASK (1 << PORTD0) | (1 << PORTD1)
#define I2C_POWER_REG PRR0
/** @} */
#ifdef __cplusplus

1
cpu/atmega328p/include/periph_cpu.h
View File

@ -47,7 +47,6 @@ enum {
*/
#define I2C_PORT_REG PORTC
#define I2C_PIN_MASK (1 << PORTC4) | (1 << PORTC5)
#define I2C_POWER_REG PRR
/** @} */
#ifdef __cplusplus

1
cpu/atmega_common/include/atmega_regs_common.h
View File

@ -22,6 +22,7 @@
#define ATMEGA_REGS_COMMON_H
#include <avr/io.h>
#include <avr/power.h>
#ifdef __cplusplus
extern "C" {

4
cpu/atmega_common/periph/i2c.c
View File

@ -251,13 +251,13 @@ int i2c_write_regs(i2c_t dev, uint8_t address, uint8_t reg, const void *data, in
void i2c_poweron(i2c_t dev)
{
assert(dev < I2C_NUMOF);
I2C_POWER_REG &= ~(1 << PRTWI);
power_twi_enable();
}
void i2c_poweroff(i2c_t dev)
{
assert(dev < I2C_NUMOF);
I2C_POWER_REG |= (1 << PRTWI);
power_twi_disable();
}
static int _start(uint8_t address, uint8_t rw_flag)

7
cpu/atmega_common/periph/spi.c
View File

@ -42,7 +42,7 @@ void spi_init(spi_t bus)
{
assert(bus == 0);
/* power off the SPI peripheral */
MEGA_PRR |= (1 << PRSPI);
power_spi_disable();
/* trigger the pin configuration */
spi_init_pins(bus);
}
@ -64,12 +64,11 @@ int spi_acquire(spi_t bus, spi_cs_t cs, spi_mode_t mode, spi_clk_t clk)
/* lock the bus and power on the SPI peripheral */
mutex_lock(&lock);
MEGA_PRR &= ~(1 << PRSPI);
power_spi_enable();
/* configure as master, with given mode and clock */
SPSR = (clk >> S2X_SHIFT);
SPCR = ((1 << SPE) | (1 << MSTR) | mode | (clk & CLK_MASK));
SPCR |= (1 << SPE);
/* clear interrupt flag by reading SPSR and data register by reading SPDR */
(void)SPSR;
@ -82,7 +81,7 @@ void spi_release(spi_t bus)
{
/* power off and release the bus */
SPCR &= ~(1 << SPE);
MEGA_PRR |= (1 << PRSPI);
power_spi_disable();
mutex_unlock(&lock);
}