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https://github.com/RIOT-OS/RIOT.git
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Merge pull request #3835 from kaspar030/misc_arduino-mega2560_fixes
cpu: atmega2560: misc fixes
This commit is contained in:
commit
1b94b0366e
@ -64,6 +64,8 @@ extern "C" {
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#define TIMER0_COMP_B_EN OCIE1B
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#define TIMER0_COMP_C_EN OCIE1C
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#define TIMER0_FREQ_16MHZ (0 << CS12) | (0 << CS11) | (1 << CS10)
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#define TIMER0_FREQ_2MHZ (0 << CS12) | (1 << CS11) | (0 << CS10)
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#define TIMER0_FREQ_250KHZ (0 << CS12) | (1 << CS11) | (1 << CS10)
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#define TIMER0_FREQ_DISABLE (0 << CS12) | (0 << CS11) | (0 << CS10)
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#define TIMER0_COMPA_ISR TIMER1_COMPA_vect
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#define TIMER0_COMPB_ISR TIMER1_COMPB_vect
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@ -90,6 +92,8 @@ extern "C" {
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#define TIMER1_COMP_B_EN OCIE3B
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#define TIMER1_COMP_C_EN OCIE3C
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#define TIMER1_FREQ_16MHZ (0 << CS32) | (0 << CS31) | (1 << CS30)
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#define TIMER1_FREQ_2MHZ (0 << CS32) | (1 << CS31) | (0 << CS30)
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#define TIMER1_FREQ_250KHZ (0 << CS32) | (1 << CS31) | (1 << CS30)
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#define TIMER1_FREQ_DISABLE (0 << CS32) | (0 << CS31) | (0 << CS30)
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#define TIMER1_COMPA_ISR TIMER3_COMPA_vect
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#define TIMER1_COMPB_ISR TIMER3_COMPB_vect
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@ -116,6 +120,8 @@ extern "C" {
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#define TIMER2_COMP_B_EN OCIE4B
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#define TIMER2_COMP_C_EN OCIE4C
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#define TIMER2_FREQ_16MHZ (0 << CS42) | (0 << CS41) | (1 << CS40)
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#define TIMER2_FREQ_2MHZ (0 << CS42) | (1 << CS41) | (0 << CS40)
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#define TIMER2_FREQ_250KHZ (0 << CS42) | (1 << CS41) | (1 << CS40)
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#define TIMER2_FREQ_DISABLE (0 << CS42) | (0 << CS41) | (0 << CS40)
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#define TIMER2_COMPA_ISR TIMER4_COMPA_vect
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#define TIMER2_COMPB_ISR TIMER4_COMPB_vect
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@ -215,7 +215,9 @@ void gpio_write(gpio_t pin, int value)
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static inline void irq_handler(uint8_t pin_num)
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{
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__enter_isr();
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config[pin_num].cb(config[pin_num].arg);
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__exit_isr();
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}
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ISR(INT0_vect, ISR_BLOCK)
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@ -26,27 +26,15 @@
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#include "board.h"
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#include "cpu.h"
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#include "thread.h"
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#include "periph/timer.h"
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#include "periph_conf.h"
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static inline int __set_timer(tim_t dev,
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int channel,
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unsigned int timeout,
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unsigned int interval
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);
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#define IRQ_DISABLED 0x00
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typedef struct {
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void (*cb)(int);
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volatile uint8_t ctr_a;
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volatile uint8_t ctr_b;
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volatile uint8_t ctr_c;
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uint8_t limit;
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uint16_t timeout_a;
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uint16_t timeout_b;
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uint16_t timeout_c;
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} timer_conf_t;
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/**
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@ -58,17 +46,13 @@ timer_conf_t config[TIMER_NUMOF];
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* @brief Setup the given timer
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*
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*/
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int timer_init(tim_t dev, unsigned int ticks_per_us, void (*callback)(int))
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int timer_init(tim_t dev, unsigned int us_per_ticks, void (*callback)(int))
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{
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/* reject impossible ticks_per_us values */
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if ((ticks_per_us > 16) && (ticks_per_us == 0)) {
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/* reject impossible us_per_ticks values */
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if ((us_per_ticks != 4)) {
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return -1;
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}
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config[dev].limit = 16 / ticks_per_us;
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config[dev].ctr_a = 0x00;
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config[dev].ctr_b = 0x00;
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config[dev].ctr_c = 0x00;
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/* select the timer and enable the timer specific peripheral clocks */
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switch (dev) {
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@ -76,21 +60,21 @@ int timer_init(tim_t dev, unsigned int ticks_per_us, void (*callback)(int))
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case TIMER_0:
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TIMER0_COUNTER = 0;
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TIMER0_CONTROL_B |= TIMER0_FREQ_16MHZ;
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TIMER0_CONTROL_B |= TIMER0_FREQ_250KHZ;
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break;
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#endif
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#if TIMER_1_EN
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case TIMER_1:
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TIMER1_COUNTER = 0;
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TIMER1_CONTROL_B |= TIMER1_FREQ_16MHZ;
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TIMER1_CONTROL_B |= TIMER1_FREQ_250KHZ;
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break;
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#endif
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#if TIMER_2_EN
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case TIMER_2:
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TIMER2_COUNTER = 0;
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TIMER2_CONTROL_B |= TIMER2_FREQ_16MHZ;
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TIMER2_CONTROL_B |= TIMER2_FREQ_250KHZ;
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break;
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#endif
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@ -107,35 +91,128 @@ int timer_init(tim_t dev, unsigned int ticks_per_us, void (*callback)(int))
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int timer_set(tim_t dev, int channel, unsigned int timeout)
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{
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return __set_timer(dev, channel, timer_read(dev) + timeout, timeout);
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return timer_set_absolute(dev, channel, timer_read(dev) + timeout);
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}
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int timer_set_absolute(tim_t dev, int channel, unsigned int timeout)
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int timer_set_absolute(tim_t dev, int channel, unsigned int value)
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{
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return __set_timer(dev, channel, timeout, timeout);
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unsigned state = disableIRQ();
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switch (dev) {
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#if TIMER_0_EN
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case TIMER_0:
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switch (channel) {
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case 0:
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TIMER0_COMP_A = (uint16_t) value;
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TIMER0_IRQ_FLAG_REG &= ~(1 << TIMER0_COMP_A_FLAG);
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TIMER0_IRQ_MASK_REG |= (1 << TIMER0_COMP_A_EN);
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break;
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case 1:
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TIMER0_COMP_B = (uint16_t) value;
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TIMER0_IRQ_FLAG_REG &= ~(1 << TIMER0_COMP_B_FLAG);
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TIMER0_IRQ_MASK_REG |= (1 << TIMER0_COMP_B_EN);
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break;
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case 2:
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TIMER0_COMP_C = (uint16_t) value;
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TIMER0_IRQ_FLAG_REG &= ~(1 << TIMER0_COMP_C_FLAG);
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TIMER0_IRQ_MASK_REG |= (1 << TIMER0_COMP_C_EN);
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break;
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default:
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restoreIRQ(state);
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return -1;
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}
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break;
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#endif
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#if TIMER_1_EN
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case TIMER_1:
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switch (channel) {
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case 0:
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TIMER1_COMP_A = (uint16_t) value;
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TIMER1_IRQ_FLAG_REG &= ~(1 << TIMER1_COMP_A_FLAG);
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TIMER1_IRQ_MASK_REG |= (1 << TIMER1_COMP_A_EN);
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break;
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case 1:
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TIMER1_COMP_B = (uint16_t) value;
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TIMER1_IRQ_FLAG_REG &= ~(1 << TIMER1_COMP_B_FLAG);
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TIMER1_IRQ_MASK_REG |= (1 << TIMER1_COMP_B_EN);
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break;
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case 2:
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TIMER1_COMP_C = (uint16_t) value;
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TIMER1_IRQ_FLAG_REG &= ~(1 << TIMER1_COMP_C_FLAG);
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TIMER1_IRQ_MASK_REG |= (1 << TIMER1_COMP_C_EN);
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break;
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default:
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restoreIRQ(state);
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return -1;
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}
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break;
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#endif
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#if TIMER_2_EN
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case TIMER_2:
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switch (channel) {
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case 0:
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TIMER2_COMP_A = (uint16_t) value;
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TIMER2_IRQ_FLAG_REG &= ~(1 << TIMER2_COMP_A_FLAG);
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TIMER2_IRQ_MASK_REG |= (1 << TIMER2_COMP_A_EN);
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break;
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case 1:
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TIMER2_COMP_B = (uint16_t) value;
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TIMER2_IRQ_FLAG_REG &= ~(1 << TIMER2_COMP_B_FLAG);
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TIMER2_IRQ_MASK_REG |= (1 << TIMER2_COMP_B_EN);
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break;
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case 2:
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TIMER2_COMP_C = (uint16_t) value;
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TIMER2_IRQ_FLAG_REG &= ~(1 << TIMER2_COMP_C_FLAG);
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TIMER2_IRQ_MASK_REG |= (1 << TIMER2_COMP_C_EN);
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break;
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default:
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restoreIRQ(state);
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return -1;
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}
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break;
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#endif
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case TIMER_UNDEFINED:
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default:
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restoreIRQ(state);
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return -1;
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}
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/* enable interrupts for given timer */
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timer_irq_enable(dev);
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restoreIRQ(state);
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return 1;
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}
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int timer_clear(tim_t dev, int channel)
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{
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switch (dev) {
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#if TIMER_0_EN
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case TIMER_0:
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switch (channel) {
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case 0:
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TIMER0_IRQ_FLAG_REG &= ~(1 << TIMER0_COMP_A_FLAG);
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config[dev].timeout_a = IRQ_DISABLED;
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break;
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case 1:
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TIMER0_IRQ_FLAG_REG &= ~(1 << TIMER0_COMP_B_FLAG);
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config[dev].timeout_b = IRQ_DISABLED;
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break;
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case 2:
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TIMER0_IRQ_FLAG_REG &= ~(1 << TIMER0_COMP_C_FLAG);
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config[dev].timeout_c = IRQ_DISABLED;
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break;
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default:
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@ -145,22 +222,18 @@ int timer_clear(tim_t dev, int channel)
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break;
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#endif
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#if TIMER_1_EN
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case TIMER_1:
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switch (channel) {
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case 0:
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TIMER1_IRQ_FLAG_REG &= ~(1 << TIMER1_COMP_A_FLAG);
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config[dev].timeout_a = IRQ_DISABLED;
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break;
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case 1:
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TIMER1_IRQ_FLAG_REG &= ~(1 << TIMER1_COMP_B_FLAG);
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config[dev].timeout_b = IRQ_DISABLED;
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break;
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case 2:
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TIMER1_IRQ_FLAG_REG &= ~(1 << TIMER1_COMP_C_FLAG);
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config[dev].timeout_c = IRQ_DISABLED;
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break;
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default:
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@ -176,17 +249,14 @@ int timer_clear(tim_t dev, int channel)
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switch (channel) {
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case 0:
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TIMER2_IRQ_FLAG_REG &= ~(1 << TIMER2_COMP_A_FLAG);
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config[dev].timeout_a = IRQ_DISABLED;
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break;
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case 1:
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TIMER2_IRQ_FLAG_REG &= ~(1 << TIMER2_COMP_B_FLAG);
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config[dev].timeout_b = IRQ_DISABLED;
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break;
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case 2:
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TIMER2_IRQ_FLAG_REG &= ~(1 << TIMER2_COMP_C_FLAG);
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config[dev].timeout_c = IRQ_DISABLED;
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break;
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default:
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@ -213,7 +283,7 @@ unsigned int timer_read(tim_t dev)
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* Disabling interrupts globally because read from 16 Bit register can
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* otherwise be messed up
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*/
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disableIRQ();
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unsigned state = disableIRQ();
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switch (dev) {
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#if TIMER_0_EN
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@ -238,10 +308,9 @@ unsigned int timer_read(tim_t dev)
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case TIMER_UNDEFINED:
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default:
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value = 0;
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enableIRQ();
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}
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enableIRQ();
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restoreIRQ(state);
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return value;
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}
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@ -278,19 +347,19 @@ void timer_start(tim_t dev)
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#if TIMER_0_EN
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case TIMER_0:
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TIMER0_CONTROL_B |= TIMER0_FREQ_16MHZ;
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TIMER0_CONTROL_B |= TIMER0_FREQ_250KHZ;
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break;
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#endif
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#if TIMER_1_EN
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case TIMER_1:
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TIMER1_CONTROL_B |= TIMER1_FREQ_16MHZ;
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TIMER1_CONTROL_B |= TIMER1_FREQ_250KHZ;
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break;
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#endif
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#if TIMER_2_EN
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case TIMER_2:
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TIMER1_CONTROL_B |= TIMER1_FREQ_16MHZ;
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TIMER1_CONTROL_B |= TIMER1_FREQ_250KHZ;
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break;
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#endif
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@ -301,121 +370,35 @@ void timer_start(tim_t dev)
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void timer_irq_enable(tim_t dev)
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{
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switch (dev) {
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#if TIMER_0_EN
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case TIMER_0:
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if (config[dev].timeout_a != IRQ_DISABLED) {
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TIMER0_IRQ_MASK_REG |= (1 << TIMER0_COMP_A_EN);
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}
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if (config[dev].timeout_b != IRQ_DISABLED) {
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TIMER0_IRQ_MASK_REG |= (1 << TIMER0_COMP_B_EN);
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}
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if (config[dev].timeout_c != IRQ_DISABLED) {
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TIMER0_IRQ_MASK_REG |= (1 << TIMER0_COMP_C_EN);
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}
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break;
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#ifdef DEVELHELP
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printf("timer_irq_enable not implemented\n");
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#endif
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#if TIMER_1_EN
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case TIMER_1:
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if (config[dev].timeout_a != IRQ_DISABLED) {
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TIMER1_IRQ_MASK_REG |= (1 << TIMER1_COMP_A_EN);
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}
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if (config[dev].timeout_b != IRQ_DISABLED) {
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TIMER1_IRQ_MASK_REG |= (1 << TIMER1_COMP_B_EN);
|
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}
|
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if (config[dev].timeout_c != IRQ_DISABLED) {
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TIMER1_IRQ_MASK_REG |= (1 << TIMER1_COMP_C_EN);
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}
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break;
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#endif
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#if TIMER_2_EN
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|
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case TIMER_2:
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if (config[dev].timeout_a != IRQ_DISABLED) {
|
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TIMER2_IRQ_MASK_REG |= (1 << TIMER2_COMP_A_EN);
|
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}
|
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|
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if (config[dev].timeout_b != IRQ_DISABLED) {
|
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TIMER2_IRQ_MASK_REG |= (1 << TIMER2_COMP_B_EN);
|
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}
|
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|
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if (config[dev].timeout_c != IRQ_DISABLED) {
|
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TIMER2_IRQ_MASK_REG |= (1 << TIMER2_COMP_C_EN);
|
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}
|
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|
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break;
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#endif
|
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|
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case TIMER_UNDEFINED:
|
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break;
|
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}
|
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|
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enableIRQ();
|
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}
|
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|
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void timer_irq_disable(tim_t dev)
|
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{
|
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switch (dev) {
|
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#if TIMER_0_EN
|
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|
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case TIMER_0:
|
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if (config[dev].timeout_a == IRQ_DISABLED) {
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TIMER0_IRQ_MASK_REG &= ~(1 << TIMER0_COMP_A_EN);
|
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}
|
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|
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if (config[dev].timeout_b == IRQ_DISABLED) {
|
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TIMER0_IRQ_MASK_REG &= ~(1 << TIMER0_COMP_B_EN);
|
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}
|
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|
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if (config[dev].timeout_c == IRQ_DISABLED) {
|
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TIMER0_IRQ_MASK_REG &= ~(1 << TIMER0_COMP_C_EN);
|
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}
|
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|
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TIMER0_IRQ_MASK_REG &= ~(1 << TIMER0_COMP_A_EN);
|
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TIMER0_IRQ_MASK_REG &= ~(1 << TIMER0_COMP_B_EN);
|
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TIMER0_IRQ_MASK_REG &= ~(1 << TIMER0_COMP_C_EN);
|
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break;
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#endif
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#if TIMER_1_EN
|
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|
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case TIMER_1:
|
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if (config[dev].timeout_a == IRQ_DISABLED) {
|
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TIMER1_IRQ_MASK_REG &= ~(1 << TIMER1_COMP_A_EN);
|
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}
|
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|
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if (config[dev].timeout_b == IRQ_DISABLED) {
|
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TIMER1_IRQ_MASK_REG &= ~(1 << TIMER1_COMP_B_EN);
|
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}
|
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|
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if (config[dev].timeout_c == IRQ_DISABLED) {
|
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TIMER1_IRQ_MASK_REG &= ~(1 << TIMER1_COMP_C_EN);
|
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}
|
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|
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TIMER1_IRQ_MASK_REG &= ~(1 << TIMER1_COMP_A_EN);
|
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TIMER1_IRQ_MASK_REG &= ~(1 << TIMER1_COMP_B_EN);
|
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TIMER1_IRQ_MASK_REG &= ~(1 << TIMER1_COMP_C_EN);
|
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break;
|
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#endif
|
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#if TIMER_2_EN
|
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|
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case TIMER_2:
|
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if (config[dev].timeout_a == IRQ_DISABLED) {
|
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TIMER2_IRQ_MASK_REG &= ~(1 << TIMER2_COMP_A_EN);
|
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}
|
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|
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if (config[dev].timeout_b == IRQ_DISABLED) {
|
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TIMER2_IRQ_MASK_REG &= ~(1 << TIMER2_COMP_B_EN);
|
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}
|
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|
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if (config[dev].timeout_c == IRQ_DISABLED) {
|
||||
TIMER2_IRQ_MASK_REG &= ~(1 << TIMER2_COMP_C_EN);
|
||||
}
|
||||
|
||||
TIMER2_IRQ_MASK_REG &= ~(1 << TIMER2_COMP_A_EN);
|
||||
TIMER2_IRQ_MASK_REG &= ~(1 << TIMER2_COMP_B_EN);
|
||||
TIMER2_IRQ_MASK_REG &= ~(1 << TIMER2_COMP_C_EN);
|
||||
break;
|
||||
#endif
|
||||
|
||||
case TIMER_UNDEFINED:
|
||||
break;
|
||||
}
|
||||
@ -425,255 +408,85 @@ void timer_reset(tim_t dev)
|
||||
{
|
||||
switch (dev) {
|
||||
#if TIMER_0_EN
|
||||
|
||||
case TIMER_0:
|
||||
TIMER0_COUNTER = 0;
|
||||
break;
|
||||
#endif
|
||||
#if TIMER_1_EN
|
||||
|
||||
case TIMER_1:
|
||||
TIMER1_COUNTER = 0;
|
||||
break;
|
||||
#endif
|
||||
#if TIMER_2_EN
|
||||
|
||||
case TIMER_2:
|
||||
TIMER2_COUNTER = 0;
|
||||
break;
|
||||
#endif
|
||||
|
||||
case TIMER_UNDEFINED:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
inline int __set_timer(tim_t dev, int channel, unsigned int timeout, unsigned int interval)
|
||||
static inline void _isr(int timer, int chan)
|
||||
{
|
||||
/*
|
||||
* Disabling interrupts globally because write to 16 Bit register can
|
||||
* otherwise be messed up
|
||||
*/
|
||||
disableIRQ();
|
||||
__enter_isr();
|
||||
timer_clear(timer, chan);
|
||||
|
||||
switch (dev) {
|
||||
#if TIMER_0_EN
|
||||
config[timer].cb(chan);
|
||||
|
||||
case TIMER_0:
|
||||
switch (channel) {
|
||||
case 0:
|
||||
TIMER0_COMP_A = (uint16_t) timeout * config[dev].limit;
|
||||
config[dev].timeout_a = interval;
|
||||
break;
|
||||
|
||||
case 1:
|
||||
TIMER0_COMP_B = (uint16_t) timeout * config[dev].limit;
|
||||
config[dev].timeout_b = interval;
|
||||
break;
|
||||
|
||||
case 2:
|
||||
TIMER0_COMP_C = (uint16_t) timeout * config[dev].limit;
|
||||
config[dev].timeout_c = interval;
|
||||
break;
|
||||
|
||||
default:
|
||||
enableIRQ();
|
||||
return -1;
|
||||
}
|
||||
|
||||
break;
|
||||
#endif
|
||||
#if TIMER_1_EN
|
||||
|
||||
case TIMER_1:
|
||||
switch (channel) {
|
||||
case 0:
|
||||
TIMER1_COMP_A = (uint16_t) timeout * config[dev].limit;
|
||||
config[dev].timeout_a = interval;
|
||||
break;
|
||||
|
||||
case 1:
|
||||
TIMER1_COMP_B = (uint16_t) timeout * config[dev].limit;
|
||||
config[dev].timeout_b = interval;
|
||||
break;
|
||||
|
||||
case 2:
|
||||
TIMER1_COMP_C = (uint16_t) timeout * config[dev].limit;
|
||||
config[dev].timeout_c = interval;
|
||||
break;
|
||||
|
||||
default:
|
||||
enableIRQ();
|
||||
return -1;
|
||||
}
|
||||
|
||||
break;
|
||||
#endif
|
||||
#if TIMER_2_EN
|
||||
|
||||
case TIMER_2:
|
||||
switch (channel) {
|
||||
case 0:
|
||||
TIMER2_COMP_A = (uint16_t) timeout * config[dev].limit;
|
||||
config[dev].timeout_a = interval;
|
||||
break;
|
||||
|
||||
case 1:
|
||||
TIMER2_COMP_B = (uint16_t) timeout * config[dev].limit;
|
||||
config[dev].timeout_b = interval;
|
||||
break;
|
||||
|
||||
case 2:
|
||||
TIMER2_COMP_C = (uint16_t) timeout * config[dev].limit;
|
||||
config[dev].timeout_c = interval;
|
||||
break;
|
||||
|
||||
default:
|
||||
enableIRQ();
|
||||
return -1;
|
||||
}
|
||||
|
||||
break;
|
||||
#endif
|
||||
|
||||
case TIMER_UNDEFINED:
|
||||
default:
|
||||
enableIRQ();
|
||||
return -1;
|
||||
if (sched_context_switch_request) {
|
||||
thread_yield();
|
||||
}
|
||||
|
||||
/* enable interrupts for given timer */
|
||||
timer_irq_enable(dev);
|
||||
enableIRQ();
|
||||
|
||||
return 1;
|
||||
__exit_isr();
|
||||
}
|
||||
|
||||
#if TIMER_0_EN
|
||||
ISR(TIMER0_COMPA_ISR, ISR_BLOCK)
|
||||
{
|
||||
config[TIMER_0].ctr_a++;
|
||||
|
||||
if (config[TIMER_0].ctr_a >= config[TIMER_0].limit) {
|
||||
config[TIMER_0].limit = 0;
|
||||
config[TIMER_0].cb(0);
|
||||
TIMER0_COMP_A = TIMER0_COMP_A + config[TIMER_0].timeout_a * config[TIMER_0].limit;
|
||||
}
|
||||
_isr(0, 0);
|
||||
}
|
||||
|
||||
ISR(TIMER0_COMPB_ISR, ISR_BLOCK)
|
||||
{
|
||||
config[TIMER_0].ctr_b++;
|
||||
|
||||
if (config[TIMER_0].ctr_b >= config[TIMER_0].limit) {
|
||||
config[TIMER_0].limit = 0;
|
||||
config[TIMER_0].cb(1);
|
||||
TIMER0_COMP_B = TIMER0_COMP_B + config[TIMER_0].timeout_b * config[TIMER_0].limit;
|
||||
}
|
||||
_isr(0, 1);
|
||||
}
|
||||
|
||||
ISR(TIMER0_COMPC_ISR, ISR_BLOCK)
|
||||
{
|
||||
config[TIMER_0].ctr_c++;
|
||||
|
||||
if (config[TIMER_0].ctr_c >= config[TIMER_0].limit) {
|
||||
config[TIMER_0].limit = 0;
|
||||
config[TIMER_0].cb(2);
|
||||
TIMER0_COMP_C = TIMER0_COMP_C + config[TIMER_0].timeout_c * config[TIMER_0].limit;
|
||||
}
|
||||
_isr(0, 2);
|
||||
}
|
||||
#endif /* TIMER_0_EN */
|
||||
|
||||
#if TIMER_1_EN
|
||||
ISR(TIMER1_COMPA_ISR, ISR_BLOCK)
|
||||
{
|
||||
config[TIMER_1].ctr_a++;
|
||||
|
||||
if (config[TIMER_1].ctr_a >= config[TIMER_1].limit) {
|
||||
config[TIMER_1].limit = 0;
|
||||
config[TIMER_1].cb(0);
|
||||
TIMER1_COMP_A = TIMER1_COMP_A + config[TIMER_1].timeout_a * config[TIMER_1].limit;
|
||||
}
|
||||
|
||||
if (sched_context_switch_request) {
|
||||
thread_yield();
|
||||
}
|
||||
_isr(1, 0);
|
||||
}
|
||||
|
||||
ISR(TIMER1_COMPB_ISR, ISR_BLOCK)
|
||||
{
|
||||
config[TIMER_1].ctr_b++;
|
||||
|
||||
if (config[TIMER_1].ctr_b >= config[TIMER_1].limit) {
|
||||
config[TIMER_1].limit = 0;
|
||||
config[TIMER_1].cb(1);
|
||||
TIMER1_COMP_B = TIMER1_COMP_B + config[TIMER_1].timeout_b * config[TIMER_1].limit;
|
||||
}
|
||||
|
||||
if (sched_context_switch_request) {
|
||||
thread_yield();
|
||||
}
|
||||
_isr(1, 1);
|
||||
}
|
||||
|
||||
ISR(TIMER1_COMPC_ISR, ISR_BLOCK)
|
||||
{
|
||||
config[TIMER_1].ctr_c++;
|
||||
|
||||
if (config[TIMER_1].ctr_c >= config[TIMER_1].limit) {
|
||||
config[TIMER_1].limit = 0;
|
||||
config[TIMER_1].cb(2);
|
||||
TIMER1_COMP_C = TIMER1_COMP_C + config[TIMER_1].timeout_c * config[TIMER_1].limit;
|
||||
}
|
||||
|
||||
if (sched_context_switch_request) {
|
||||
thread_yield();
|
||||
}
|
||||
_isr(1, 2);
|
||||
}
|
||||
#endif /* TIMER_1_EN */
|
||||
|
||||
#if TIMER_2_EN
|
||||
ISR(TIMER2_COMPA_ISR, ISR_BLOCK)
|
||||
{
|
||||
config[TIMER_2].ctr_a++;
|
||||
|
||||
if (config[TIMER_2].ctr_a >= config[TIMER_2].limit) {
|
||||
config[TIMER_2].limit = 0;
|
||||
config[TIMER_2].cb(0);
|
||||
TIMER2_COMP_A = TIMER2_COMP_A + config[TIMER_2].timeout_a * config[TIMER_2].limit;
|
||||
}
|
||||
|
||||
if (sched_context_switch_request) {
|
||||
thread_yield();
|
||||
}
|
||||
_isr(2, 0);
|
||||
}
|
||||
|
||||
ISR(TIMER2_COMPB_ISR, ISR_BLOCK)
|
||||
{
|
||||
config[TIMER_2].ctr_b++;
|
||||
|
||||
if (config[TIMER_2].ctr_b >= config[TIMER_2].limit) {
|
||||
config[TIMER_2].limit = 0;
|
||||
config[TIMER_2].cb(1);
|
||||
TIMER2_COMP_B = TIMER2_COMP_B + config[TIMER_2].timeout_b * config[TIMER_2].limit;
|
||||
}
|
||||
|
||||
if (sched_context_switch_request) {
|
||||
thread_yield();
|
||||
}
|
||||
_isr(2, 1);
|
||||
}
|
||||
|
||||
ISR(TIMER2_COMPC_ISR, ISR_BLOCK)
|
||||
{
|
||||
config[TIMER_2].ctr_c++;
|
||||
|
||||
if (config[TIMER_2].ctr_c >= config[TIMER_2].limit) {
|
||||
config[TIMER_2].limit = 0;
|
||||
config[TIMER_2].cb(2);
|
||||
TIMER2_COMP_C = TIMER2_COMP_C + config[TIMER_2].timeout_c * config[TIMER_2].limit;
|
||||
}
|
||||
|
||||
if (sched_context_switch_request) {
|
||||
thread_yield();
|
||||
}
|
||||
_isr(2, 2);
|
||||
}
|
||||
#endif /* TIMER_2_EN */
|
||||
|
@ -276,44 +276,52 @@ int uart_write_blocking(uart_t uart, char data)
|
||||
#if UART_0_EN
|
||||
ISR(USART0_RX_vect, ISR_BLOCK)
|
||||
{
|
||||
__enter_isr();
|
||||
config[UART_0].rx_cb(config[UART_0].arg, UART0_DATA_REGISTER);
|
||||
|
||||
if (sched_context_switch_request) {
|
||||
thread_yield();
|
||||
}
|
||||
__exit_isr();
|
||||
}
|
||||
#endif /* UART_0_EN */
|
||||
|
||||
#if UART_1_EN
|
||||
ISR(USART1_RX_vect, ISR_BLOCK)
|
||||
{
|
||||
__enter_isr();
|
||||
config[UART_1].rx_cb(config[UART_1].arg, UART0_DATA_REGISTER);
|
||||
|
||||
if (sched_context_switch_request) {
|
||||
thread_yield();
|
||||
}
|
||||
__exit_isr();
|
||||
}
|
||||
#endif /* UART_1_EN */
|
||||
|
||||
#if UART_1_EN
|
||||
ISR(USART2_RX_vect, ISR_BLOCK)
|
||||
{
|
||||
__enter_isr();
|
||||
config[UART_2].rx_cb(config[UART_2].arg, UART0_DATA_REGISTER);
|
||||
|
||||
if (sched_context_switch_request) {
|
||||
thread_yield();
|
||||
}
|
||||
__exit_isr();
|
||||
}
|
||||
#endif /* UART_2_EN */
|
||||
|
||||
#if UART_2_EN
|
||||
ISR(USART2_RX_vect, ISR_BLOCK)
|
||||
{
|
||||
__enter_isr();
|
||||
config[UART_3].rx_cb(config[UART_3].arg, UART0_DATA_REGISTER);
|
||||
|
||||
if (sched_context_switch_request) {
|
||||
thread_yield();
|
||||
}
|
||||
__exit_isr();
|
||||
}
|
||||
#endif /* UART_3_EN */
|
||||
#endif /* UART_0_EN || UART_1_EN |UART_2_EN| UART3 */
|
||||
|
@ -1,5 +1,6 @@
|
||||
/*
|
||||
* Copyright (C) 2014 Freie Universität Berlin, Hinnerk van Bruinehsen
|
||||
* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
|
||||
* 2014 Freie Universität Berlin, Hinnerk van Bruinehsen
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU Lesser
|
||||
* General Public License v2.1. See the file LICENSE in the top level
|
||||
@ -20,14 +21,16 @@
|
||||
* @author Stefan Pfeiffer <stefan.pfeiffer@fu-berlin.de>
|
||||
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
|
||||
* @author Hinnerk van Bruinehsen <h.v.bruinehsen@fu-berlin.de>
|
||||
* @author Kaspar Schleiser <kaspar@schleiser.de>
|
||||
*/
|
||||
|
||||
#ifndef __ATMEGA_COMMON_H
|
||||
#define __ATMEGA_COMMON_H
|
||||
|
||||
#include <stdio.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include <avr/interrupt.h>
|
||||
#include "cpu_conf.h"
|
||||
|
||||
/**
|
||||
@ -43,6 +46,27 @@ extern "C" {
|
||||
#define eINT enableIRQ
|
||||
#define dINT disableIRQ
|
||||
|
||||
/**
|
||||
* @brief global in-ISR state variable
|
||||
*/
|
||||
extern volatile uint8_t __in_isr;
|
||||
|
||||
/**
|
||||
* @brief Flag entering of an ISR
|
||||
*/
|
||||
static inline void __enter_isr(void)
|
||||
{
|
||||
__in_isr = 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Flag exiting of an ISR
|
||||
*/
|
||||
static inline void __exit_isr(void)
|
||||
{
|
||||
__in_isr = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Initialization of the CPU
|
||||
*/
|
||||
|
@ -20,6 +20,7 @@
|
||||
*/
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include "arch/irq_arch.h"
|
||||
#include "cpu.h"
|
||||
|
||||
@ -29,6 +30,8 @@
|
||||
static uint8_t __get_interrupt_state(void);
|
||||
static void __set_interrupt_state(uint8_t state);
|
||||
|
||||
volatile uint8_t __in_isr = 0;
|
||||
|
||||
__attribute__((always_inline)) static inline uint8_t __get_interrupt_state(void)
|
||||
{
|
||||
uint8_t sreg;
|
||||
@ -84,9 +87,5 @@ void irq_arch_restore(unsigned int state)
|
||||
*/
|
||||
int irq_arch_in(void)
|
||||
{
|
||||
/*
|
||||
* TODO: find a way to implement this function (e.g. a static variable dis- or
|
||||
* set and unset in each ISR)
|
||||
*/
|
||||
return 0;
|
||||
return __in_isr;
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user