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drivers: serial: add support for esp32c3

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into esp32_serial unified driver

Signed-off-by: Felipe Neves <felipe.neves@espressif.com>
This commit is contained in:
Felipe Neves 2021-10-18 17:19:25 -03:00 • committed by Christopher Friedt
commit 4c069b9894
6 changed files with 53 additions and 7 deletions
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29
drivers/serial/uart_esp32.c
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@ -14,25 +14,39 @@
#elif defined(CONFIG_SOC_ESP32S2)
#include <esp32s2/rom/ets_sys.h>
#include <esp32s2/rom/gpio.h>
#elif defined(CONFIG_SOC_ESP32C3)
#include <esp32c3/rom/ets_sys.h>
#include <esp32c3/rom/gpio.h>
#endif
#include <soc/uart_struct.h>
#include <soc/dport_reg.h>
#include <soc/dport_access.h>
#include "stubs.h"
#include <hal/uart_ll.h>
#include <soc/gpio_sig_map.h>
#include <soc/uart_reg.h>
#include <device.h>
#include <soc.h>
#include <drivers/uart.h>
#ifndef CONFIG_SOC_ESP32C3
#include <drivers/interrupt_controller/intc_esp32.h>
#else
#include <drivers/interrupt_controller/intc_esp32c3.h>
#endif
#include <drivers/clock_control.h>
#include <errno.h>
#include <sys/util.h>
#include <esp_attr.h>
#ifdef CONFIG_SOC_ESP32C3
#define ISR_HANDLER isr_handler_t
#else
#define ISR_HANDLER intr_handler_t
#endif
struct uart_esp32_config {
struct uart_device_config dev_conf;
@ -179,7 +193,12 @@ static int uart_esp32_configure_pins(const struct device *dev)
static int uart_esp32_configure(const struct device *dev,
const struct uart_config *cfg)
{
#ifndef CONFIG_SOC_ESP32C3
/* this register does not exist for esp32c3 uart controller */
DEV_BASE(dev)->conf0.tick_ref_always_on = 1;
#endif
DEV_BASE(dev)->conf1.rxfifo_full_thrhd = UART_RX_FIFO_THRESH;
DEV_BASE(dev)->conf1.txfifo_empty_thrhd = UART_TX_FIFO_THRESH;
@ -258,7 +277,11 @@ static int uart_esp32_init(const struct device *dev)
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
DEV_DATA(dev)->irq_line =
esp_intr_alloc(DEV_CFG(dev)->irq_source, 0, uart_esp32_isr, (void *)dev, NULL);
esp_intr_alloc(DEV_CFG(dev)->irq_source,
0,
(ISR_HANDLER)uart_esp32_isr,
(void *)dev,
NULL);
#endif
return 0;
}