feat(sdm): add driver support for esp32p4

components/driver/test_apps/legacy_sigma_delta_driver/README.md

@@ -1,2 +1,2 @@
-| Supported Targets | ESP32 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- |

components/driver/test_apps/sigma_delta/README.md

@@ -1,2 +1,2 @@
-| Supported Targets | ESP32 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- |

components/hal/esp32p4/include/hal/sdm_ll.h

@@ -0,0 +1,58 @@
+/*
+ * SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include <stdbool.h>
+#include "hal/misc.h"
+#include "hal/assert.h"
+#include "soc/gpio_ext_struct.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Set Sigma-delta enable
+ *
+ * @param hw Peripheral SIGMADELTA hardware instance address.
+ * @param en Sigma-delta enable value
+ */
+static inline void sdm_ll_enable_clock(gpio_sd_dev_t *hw, bool en)
+{
+    hw->misc.function_clk_en = en;
+}
+
+/**
+ * @brief Set Sigma-delta channel duty.
+ *
+ * @param hw Peripheral SIGMADELTA hardware instance address.
+ * @param channel Sigma-delta channel number
+ * @param density Sigma-delta quantized density of one channel, the value ranges from -128 to 127, recommended range is -90 ~ 90.
+ *             The waveform is more like a random one in this range.
+ */
+__attribute__((always_inline))
+static inline void sdm_ll_set_pulse_density(gpio_sd_dev_t *hw, int channel, int8_t density)
+{
+    HAL_FORCE_MODIFY_U32_REG_FIELD(hw->channel[channel], duty, (uint32_t)density);
+}
+
+/**
+ * @brief Set Sigma-delta channel's clock pre-scale value.
+ *
+ * @param hw Peripheral SIGMADELTA hardware instance address.
+ * @param channel Sigma-delta channel number
+ * @param prescale The divider of source clock, ranges from 1 to 256
+ */
+static inline void sdm_ll_set_prescale(gpio_sd_dev_t *hw, int channel, uint32_t prescale)
+{
+    HAL_ASSERT(prescale && prescale <= 256);
+    HAL_FORCE_MODIFY_U32_REG_FIELD(hw->channel[channel], prescale, prescale - 1);
+}
+
+#ifdef __cplusplus
+}
+#endif

components/soc/esp32p4/include/soc/Kconfig.soc_caps.in

@@ -87,6 +87,10 @@ config SOC_I2S_SUPPORTED
     bool
     default y
 
+config SOC_SDM_SUPPORTED
+    bool
+    default y
+
 config SOC_GPSPI_SUPPORTED
     bool
     default y
@@ -909,7 +913,7 @@ config SOC_SDM_GROUPS
 
 config SOC_SDM_CHANNELS_PER_GROUP
     int
-    default 4
+    default 8
 
 config SOC_SDM_CLK_SUPPORT_PLL_F80M
     bool

components/soc/esp32p4/include/soc/clk_tree_defs.h

@@ -477,7 +477,21 @@ typedef enum {
     ISP_CLK_SRC_PLL240 = SOC_MOD_CLK_PLL_F240M,       /*!< Select SOC_MOD_CLK_PLL_F240M as ISP source clock */
 } soc_periph_isp_clk_src_t;
 
-//////////////////////////////////////////////////SDM//////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////SDM///////////////////////////////////////////////////////////////////
+
+/**
+ * @brief Array initializer for all supported clock sources of SDM
+ */
+#define SOC_SDM_CLKS {SOC_MOD_CLK_PLL_F80M, SOC_MOD_CLK_XTAL}
+
+/**
+ * @brief Sigma Delta Modulator clock source
+ */
+typedef enum {
+    SDM_CLK_SRC_XTAL = SOC_MOD_CLK_XTAL,         /*!< Select XTAL clock as the source clock */
+    SDM_CLK_SRC_PLL_F80M = SOC_MOD_CLK_PLL_F80M, /*!< Select PLL_F80M clock as the source clock */
+    SDM_CLK_SRC_DEFAULT = SOC_MOD_CLK_PLL_F80M,  /*!< Select PLL_F80M clock as the default clock choice */
+} soc_periph_sdm_clk_src_t;
 
 //////////////////////////////////////////////////GPIO Glitch Filter////////////////////////////////////////////////////
 

components/soc/esp32p4/include/soc/soc_caps.h

@@ -49,7 +49,7 @@
 #define SOC_RTC_MEM_SUPPORTED           1
 #define SOC_RMT_SUPPORTED               1
 #define SOC_I2S_SUPPORTED               1
-// #define SOC_SDM_SUPPORTED               1  //TODO: IDF-7551
+#define SOC_SDM_SUPPORTED               1
 #define SOC_GPSPI_SUPPORTED             1
 #define SOC_LEDC_SUPPORTED              1
 #define SOC_I2C_SUPPORTED               1  //TODO: IDF-6507, TODO: IDF-7491
@@ -408,7 +408,7 @@
 
 /*-------------------------- Sigma Delta Modulator CAPS -----------------*/
 #define SOC_SDM_GROUPS               1U
-#define SOC_SDM_CHANNELS_PER_GROUP   4
+#define SOC_SDM_CHANNELS_PER_GROUP   8
 #define SOC_SDM_CLK_SUPPORT_PLL_F80M 1
 #define SOC_SDM_CLK_SUPPORT_XTAL     1
 

components/soc/esp32p4/sdm_periph.c

@@ -8,5 +8,30 @@
 #include "soc/gpio_sig_map.h"
 
 const sigma_delta_signal_conn_t sigma_delta_periph_signals = {
-
+    .channels = {
+        [0] = {
+            GPIO_SD0_OUT_IDX
+        },
+        [1] = {
+            GPIO_SD1_OUT_IDX
+        },
+        [2] = {
+            GPIO_SD2_OUT_IDX
+        },
+        [3] = {
+            GPIO_SD3_OUT_IDX
+        },
+        [4] = {
+            GPIO_SD4_OUT_IDX
+        },
+        [5] = {
+            GPIO_SD5_OUT_IDX
+        },
+        [6] = {
+            GPIO_SD6_OUT_IDX
+        },
+        [7] = {
+            GPIO_SD7_OUT_IDX
+        }
+    }
 };

examples/peripherals/sigma_delta/sdm_dac/README.md

@@ -1,5 +1,5 @@
-| Supported Targets | ESP32 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- |
 
 # Sigma Delta Modulation DAC Example
 

examples/peripherals/sigma_delta/sdm_led/README.md

@@ -1,5 +1,5 @@
-| Supported Targets | ESP32 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- |
 
 # Sigma Delta Modulation LED Example