driver: i2s: esp32s3/esp32c3

i2s support added for esp32s3 and esp32c3 Signed-off-by: Marcio Ribeiro <[email protected]>
zephyrproject-rtos · Jun 28, 2024 · bd3bc4b · bd3bc4b
1 parent 5b4c894
commit bd3bc4b
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Showing 19 changed files with 3,574 additions and 1 deletion.
diff --git a/boards/espressif/esp32c3_devkitm/esp32c3_devkitm-pinctrl.dtsi b/boards/espressif/esp32c3_devkitm/esp32c3_devkitm-pinctrl.dtsi
@@ -43,6 +43,20 @@
 		};
 	};
 
+	i2s1_default: i2s1_default {
+		group1 {
+			pinmux = <I2S1_MCLK_GPIO6>,
+				 <I2S1_O_WS_GPIO5>,
+				 <I2S1_O_BCK_GPIO4>,
+				 <I2S1_O_SD_GPIO18>;
+			output-enable;
+		};
+		group2 {
+			pinmux = <I2S1_I_SD_GPIO19>;
+			input-enable;
+		};
+	};
+
 	twai_default: twai_default {
 		group1 {
 			pinmux = <TWAI_TX_GPIO4>,

diff --git a/boards/espressif/esp32c3_devkitm/esp32c3_devkitm.dts b/boards/espressif/esp32c3_devkitm/esp32c3_devkitm.dts
@@ -58,6 +58,12 @@
 	pinctrl-names = "default";
 };
 
+&i2s1 {
+	pinctrl-0 = <&i2s1_default>;
+	pinctrl-names = "default";
+	status = "disabled";
+};
+
 &trng0 {
 	status = "okay";
 };

diff --git a/boards/espressif/esp32c3_devkitm/esp32c3_devkitm.yaml b/boards/espressif/esp32c3_devkitm/esp32c3_devkitm.yaml
@@ -8,6 +8,7 @@ supported:
   - adc
   - gpio
   - i2c
+  - i2s
   - watchdog
   - uart
   - dma

diff --git a/boards/espressif/esp32s3_devkitc/esp32s3_devkitc-pinctrl.dtsi b/boards/espressif/esp32s3_devkitc/esp32s3_devkitc-pinctrl.dtsi
@@ -40,6 +40,38 @@
 		};
 	};
 
+	i2s0_default: i2s0_default {
+		group1 {
+			pinmux = <I2S0_MCLK_GPIO4>,
+				 <I2S0_O_WS_GPIO5>,
+				 <I2S0_O_BCK_GPIO6>,
+				 <I2S0_O_SD_GPIO7>,
+				 <I2S0_I_WS_GPIO15>,
+				 <I2S0_I_BCK_GPIO16>;
+			output-enable;
+		};
+		group2 {
+			pinmux = <I2S0_I_SD_GPIO17>;
+			input-enable;
+		};
+	};
+
+	i2s1_default: i2s1_default {
+		group1 {
+			pinmux = <I2S1_MCLK_GPIO18>,
+				 <I2S1_O_WS_GPIO8>,
+				 <I2S1_O_BCK_GPIO3>,
+				 <I2S1_O_SD_GPIO9>,
+				 <I2S1_I_WS_GPIO10>,
+				 <I2S1_I_BCK_GPIO11>;
+			output-enable;
+		};
+		group2 {
+			pinmux = <I2S1_I_SD_GPIO12>;
+			input-enable;
+		};
+	};
+
 	spim2_default: spim2_default {
 		group1 {
 			pinmux = <SPIM2_MISO_GPIO13>,

diff --git a/boards/espressif/esp32s3_devkitc/esp32s3_devkitc_procpu.dts b/boards/espressif/esp32s3_devkitc/esp32s3_devkitc_procpu.dts
@@ -86,6 +86,18 @@
 	pinctrl-names = "default";
 };
 
+&i2s0 {
+	pinctrl-0 = <&i2s0_default>;
+	pinctrl-names = "default";
+	status = "disabled";
+};
+
+&i2s1 {
+	pinctrl-0 = <&i2s1_default>;
+	pinctrl-names = "default";
+	status = "disabled";
+};
+
 &spi2 {
 	#address-cells = <1>;
 	#size-cells = <0>;

diff --git a/boards/espressif/esp32s3_devkitc/esp32s3_devkitc_procpu.yaml b/boards/espressif/esp32s3_devkitc/esp32s3_devkitc_procpu.yaml
@@ -8,6 +8,7 @@ supported:
   - gpio
   - uart
   - i2c
+  - i2s
   - spi
   - can
   - counter

diff --git a/boards/espressif/esp32s3_devkitm/esp32s3_devkitm-pinctrl.dtsi b/boards/espressif/esp32s3_devkitm/esp32s3_devkitm-pinctrl.dtsi
@@ -40,6 +40,38 @@
 		};
 	};
 
+	i2s0_default: i2s0_default {
+		group1 {
+			pinmux = <I2S0_MCLK_GPIO1>,
+				 <I2S0_O_WS_GPIO2>,
+				 <I2S0_O_BCK_GPIO3>,
+				 <I2S0_O_SD_GPIO4>,
+				 <I2S0_I_WS_GPIO5>,
+				 <I2S0_I_BCK_GPIO6>;
+			output-enable;
+		};
+		group2 {
+			pinmux = <I2S0_I_SD_GPIO7>;
+			input-enable;
+		};
+	};
+
+	i2s1_default: i2s1_default {
+		group1 {
+			pinmux = <I2S1_MCLK_GPIO8>,
+				 <I2S1_O_WS_GPIO9>,
+				 <I2S1_O_BCK_GPIO10>,
+				 <I2S1_O_SD_GPIO11>,
+				 <I2S1_I_WS_GPIO12>,
+				 <I2S1_I_BCK_GPIO13>;
+			output-enable;
+		};
+		group2 {
+			pinmux = <I2S1_I_SD_GPIO14>;
+			input-enable;
+		};
+	};
+
 	spim2_default: spim2_default {
 		group1 {
 			pinmux = <SPIM2_MISO_GPIO13>,

diff --git a/boards/espressif/esp32s3_devkitm/esp32s3_devkitm_procpu.dts b/boards/espressif/esp32s3_devkitm/esp32s3_devkitm_procpu.dts
@@ -82,6 +82,18 @@
 	pinctrl-names = "default";
 };
 
+&i2s0 {
+	pinctrl-0 = <&i2s0_default>;
+	pinctrl-names = "default";
+	status = "disabled";
+};
+
+&i2s1 {
+	pinctrl-0 = <&i2s1_default>;
+	pinctrl-names = "default";
+	status = "disabled";
+};
+
 &spi2 {
 	#address-cells = <1>;
 	#size-cells = <0>;

diff --git a/boards/espressif/esp32s3_devkitm/esp32s3_devkitm_procpu.yaml b/boards/espressif/esp32s3_devkitm/esp32s3_devkitm_procpu.yaml
@@ -8,6 +8,7 @@ supported:
   - gpio
   - uart
   - i2c
+  - i2s
   - spi
   - can
   - counter

diff --git a/drivers/i2s/CMakeLists.txt b/drivers/i2s/CMakeLists.txt
@@ -12,3 +12,4 @@ zephyr_library_sources_ifdef(CONFIG_I2S_LITEX		i2s_litex.c)
 zephyr_library_sources_ifdef(CONFIG_I2S_MCUX_FLEXCOMM	i2s_mcux_flexcomm.c)
 zephyr_library_sources_ifdef(CONFIG_I2S_NRFX		i2s_nrfx.c)
 zephyr_library_sources_ifdef(CONFIG_I2S_MCUX_SAI	i2s_mcux_sai.c)
+zephyr_library_sources_ifdef(CONFIG_I2S_ESP32		i2s_esp32.c)
diff --git a/drivers/i2s/Kconfig.esp32 b/drivers/i2s/Kconfig.esp32
@@ -0,0 +1,28 @@
+# Copyright (c) 2024 Espressif Systems (Shanghai) CO LTD
+#
+# SPDX-License-Identifier: Apache-2.0
+
+config I2S_ESP32
+	bool "ESP32 I2S driver"
+	default y
+	depends on DT_HAS_ESPRESSIF_ESP32_I2S_ENABLED
+	depends on DT_HAS_ESPRESSIF_ESP32_GDMA_ENABLED
+	select GPIO_ESP32
+	help
+	  Enables the ESP32 I2S driver (GDMA SoCs only)
+
+if I2S_ESP32
+
+config I2S_ESP32_RX_BLOCK_COUNT
+	int "ESP32 I2S RX block count"
+	default 5
+	help
+	  Max number of elements waiting to be read from the I2S RX channel
+
+config I2S_ESP32_TX_BLOCK_COUNT
+	int "ESP32 I2S TX block count"
+	default 5
+	help
+	  Max number of elements waiting to be transmitted by the I2S TX channel
+
+endif