esp-idf/components/esp_rom/patches/esp_rom_sys.c

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/*
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* SPDX-FileCopyrightText: 2010-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdint.h>
#include <stdbool.h>
#include "esp_attr.h"
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#include "esp_rom_caps.h"
IRAM_ATTR void esp_rom_install_channel_putc(int channel, void (*putc)(char c))
{
extern void ets_install_putc1(void (*p)(char c));
extern void ets_install_putc2(void (*p)(char c));
switch (channel) {
case 1:
ets_install_putc1(putc);
break;
case 2:
ets_install_putc2(putc);
break;
default:
break;
}
}
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#if ESP_ROM_HAS_ETS_PRINTF_BUG
IRAM_ATTR void esp_rom_install_uart_printf(void)
{
extern void ets_install_uart_printf(void);
extern bool g_uart_print;
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extern bool g_usb_print;
// If ROM log is disabled permanently via eFuse or temporarily via RTC storage register,
// this ROM symbol will be set to false, and cause ``esp_rom_printf`` can't work on esp-idf side.
g_uart_print = true;
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g_usb_print = true;
ets_install_uart_printf();
}
#endif