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interrupt_controller: intc_esp32c3: added intc driver

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For esp32c3 and replaces the hardcoded interrupt
attaching procedures with this new driver.

Signed-off-by: Felipe Neves <felipe.neves@espressif.com>
This commit is contained in:
Felipe Neves
2021-08-30 10:04:34 -03:00
committed by Anas Nashif
parent a8f02ed5ee
commit b97c2da2f2
12 changed files with 381 additions and 37 deletions
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drivers/timer/esp32c3_sys_timer.c
+7 -8
View File
@@ -13,12 +13,11 @@
#include <rom/ets_sys.h>
#include <esp_attr.h>
#include <drivers/interrupt_controller/intc_esp32c3.h>
#include <drivers/timer/system_timer.h>
#include <sys_clock.h>
#include <soc.h>
#define SYS_TIMER_CPU_IRQ 16
#define CYC_PER_TICK ((uint32_t)((uint64_t)sys_clock_hw_cycles_per_sec() \
/ (uint64_t)CONFIG_SYS_CLOCK_TICKS_PER_SEC))
#define MAX_CYC 0xffffffffu
@@ -45,7 +44,6 @@ static uint64_t systimer_alarm(void)
static void sys_timer_isr(const void *arg)
{
ARG_UNUSED(arg);
systimer_ll_clear_alarm_int(SYSTIMER_ALARM_0);
k_spinlock_key_t key = k_spin_lock(&lock);
@@ -72,17 +70,18 @@ int sys_clock_driver_init(const struct device *dev)
{
ARG_UNUSED(dev);
esp_rom_intr_matrix_set(0,
ETS_SYSTIMER_TARGET0_EDGE_INTR_SOURCE,
SYS_TIMER_CPU_IRQ);
IRQ_CONNECT(SYS_TIMER_CPU_IRQ, 0, sys_timer_isr, NULL, 0);
esp_intr_alloc(ETS_SYSTIMER_TARGET0_EDGE_INTR_SOURCE,
0,
sys_timer_isr,
NULL,
NULL);
systimer_hal_init();
systimer_hal_connect_alarm_counter(SYSTIMER_ALARM_0, SYSTIMER_COUNTER_1);
systimer_hal_enable_counter(SYSTIMER_COUNTER_1);
systimer_hal_counter_can_stall_by_cpu(SYSTIMER_COUNTER_1, 0, true);
last_count = systimer_alarm();
set_systimer_alarm(last_count + CYC_PER_TICK);
irq_enable(SYS_TIMER_CPU_IRQ);
return 0;
}