esp32c6: add soc/ xxx_periph, xxx_channel, xxx_pins, etc. files

components/soc/esp32c6/adc_periph.c

@@ -0,0 +1,19 @@
+/*
+ * SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "soc/adc_periph.h"
+
+/* Store IO number corresponding to the ADC channel number. */
+const int adc_channel_io_map[SOC_ADC_PERIPH_NUM][SOC_ADC_MAX_CHANNEL_NUM] = {
+    /* ADC1 */
+    {
+        ADC1_CHANNEL_0_GPIO_NUM, ADC1_CHANNEL_1_GPIO_NUM, ADC1_CHANNEL_2_GPIO_NUM, ADC1_CHANNEL_3_GPIO_NUM, ADC1_CHANNEL_4_GPIO_NUM
+    },
+    /* ADC2 */
+    {
+        ADC2_CHANNEL_0_GPIO_NUM, -1, -1, -1, -1
+    }
+};