[esp32, logger] Add initial P4 support (#8439)

Co-authored-by: Clyde Stubbs <2366188+clydebarrow@users.noreply.github.com>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

esphome/components/esp32/__init__.py

@@ -59,6 +59,7 @@ from .const import (  # noqa
     VARIANT_ESP32C3,
     VARIANT_ESP32C6,
     VARIANT_ESP32H2,
+    VARIANT_ESP32P4,
     VARIANT_ESP32S2,
     VARIANT_ESP32S3,
     VARIANT_FRIENDLY,
@@ -89,6 +90,7 @@ CPU_FREQUENCIES = {
     VARIANT_ESP32C3: get_cpu_frequencies(80, 160),
     VARIANT_ESP32C6: get_cpu_frequencies(80, 120, 160),
     VARIANT_ESP32H2: get_cpu_frequencies(16, 32, 48, 64, 96),
+    VARIANT_ESP32P4: get_cpu_frequencies(40, 360, 400),
 }
 
 # Make sure not missed here if a new variant added.

esphome/components/esp32/boards.py

@@ -4,6 +4,7 @@ from .const import (
     VARIANT_ESP32C3,
     VARIANT_ESP32C6,
     VARIANT_ESP32H2,
+    VARIANT_ESP32P4,
     VARIANT_ESP32S2,
     VARIANT_ESP32S3,
 )
@@ -1632,6 +1633,14 @@ BOARDS = {
         "name": "Espressif ESP32-H2-DevKit",
         "variant": VARIANT_ESP32H2,
     },
+    "esp32-p4": {
+        "name": "Espressif ESP32-P4 generic",
+        "variant": VARIANT_ESP32P4,
+    },
+    "esp32-p4-evboard": {
+        "name": "Espressif ESP32-P4 Function EV Board",
+        "variant": VARIANT_ESP32P4,
+    },
     "esp32-pico-devkitm-2": {
         "name": "Espressif ESP32-PICO-DevKitM-2",
         "variant": VARIANT_ESP32,

esphome/components/esp32/const.py

@@ -19,6 +19,7 @@ VARIANT_ESP32C2 = "ESP32C2"
 VARIANT_ESP32C3 = "ESP32C3"
 VARIANT_ESP32C6 = "ESP32C6"
 VARIANT_ESP32H2 = "ESP32H2"
+VARIANT_ESP32P4 = "ESP32P4"
 VARIANTS = [
     VARIANT_ESP32,
     VARIANT_ESP32S2,
@@ -27,6 +28,7 @@ VARIANTS = [
     VARIANT_ESP32C3,
     VARIANT_ESP32C6,
     VARIANT_ESP32H2,
+    VARIANT_ESP32P4,
 ]
 
 VARIANT_FRIENDLY = {
@@ -37,6 +39,7 @@ VARIANT_FRIENDLY = {
     VARIANT_ESP32C3: "ESP32-C3",
     VARIANT_ESP32C6: "ESP32-C6",
     VARIANT_ESP32H2: "ESP32-H2",
+    VARIANT_ESP32P4: "ESP32-P4",
 }
 
 esp32_ns = cg.esphome_ns.namespace("esp32")

esphome/components/esp32/gpio.py

@@ -29,6 +29,7 @@ from .const import (
     VARIANT_ESP32C3,
     VARIANT_ESP32C6,
     VARIANT_ESP32H2,
+    VARIANT_ESP32P4,
     VARIANT_ESP32S2,
     VARIANT_ESP32S3,
     esp32_ns,
@@ -38,6 +39,7 @@ from .gpio_esp32_c2 import esp32_c2_validate_gpio_pin, esp32_c2_validate_support
 from .gpio_esp32_c3 import esp32_c3_validate_gpio_pin, esp32_c3_validate_supports
 from .gpio_esp32_c6 import esp32_c6_validate_gpio_pin, esp32_c6_validate_supports
 from .gpio_esp32_h2 import esp32_h2_validate_gpio_pin, esp32_h2_validate_supports
+from .gpio_esp32_p4 import esp32_p4_validate_gpio_pin, esp32_p4_validate_supports
 from .gpio_esp32_s2 import esp32_s2_validate_gpio_pin, esp32_s2_validate_supports
 from .gpio_esp32_s3 import esp32_s3_validate_gpio_pin, esp32_s3_validate_supports
 
@@ -106,6 +108,10 @@ _esp32_validations = {
         pin_validation=esp32_h2_validate_gpio_pin,
         usage_validation=esp32_h2_validate_supports,
     ),
+    VARIANT_ESP32P4: ESP32ValidationFunctions(
+        pin_validation=esp32_p4_validate_gpio_pin,
+        usage_validation=esp32_p4_validate_supports,
+    ),
     VARIANT_ESP32S2: ESP32ValidationFunctions(
         pin_validation=esp32_s2_validate_gpio_pin,
         usage_validation=esp32_s2_validate_supports,

esphome/components/esp32/gpio_esp32_p4.py

@@ -0,0 +1,43 @@
+import logging
+
+import esphome.config_validation as cv
+from esphome.const import CONF_INPUT, CONF_MODE, CONF_NUMBER
+
+_ESP32P4_USB_JTAG_PINS = {24, 25}
+
+_ESP32P4_STRAPPING_PINS = {34, 35, 36, 37, 38}
+
+_LOGGER = logging.getLogger(__name__)
+
+
+def esp32_p4_validate_gpio_pin(value):
+    if value < 0 or value > 54:
+        raise cv.Invalid(f"Invalid pin number: {value} (must be 0-54)")
+    if value in _ESP32P4_STRAPPING_PINS:
+        _LOGGER.warning(
+            "GPIO%d is a Strapping PIN and should be avoided.\n"
+            "Attaching external pullup/down resistors to strapping pins can cause unexpected failures.\n"
+            "See https://esphome.io/guides/faq.html#why-am-i-getting-a-warning-about-strapping-pins",
+            value,
+        )
+    if value in _ESP32P4_USB_JTAG_PINS:
+        _LOGGER.warning(
+            "GPIO%d is reserved for the USB-Serial-JTAG interface.\n"
+            "To use this pin as GPIO, USB-Serial-JTAG will be disabled.",
+            value,
+        )
+
+    return value
+
+
+def esp32_p4_validate_supports(value):
+    num = value[CONF_NUMBER]
+    mode = value[CONF_MODE]
+    is_input = mode[CONF_INPUT]
+
+    if num < 0 or num > 54:
+        raise cv.Invalid(f"Invalid pin number: {value} (must be 0-54)")
+    if is_input:
+        # All ESP32 pins support input mode
+        pass
+    return value