From b426acc78eab412e62a44d4ac950e7b76d09ee06 Mon Sep 17 00:00:00 2001
From: majoreffort <41589814+majoreffort@users.noreply.github.com>
Date: Sun, 24 Jul 2022 17:25:58 +0200
Subject: [PATCH] Added TI PCM5102A custom board

---
 components/custom_board/CMakeLists.txt        |  6 ++
 components/custom_board/Kconfig.projbuild     | 14 +++
 components/custom_board/component.mk          |  5 +
 components/custom_board/generic_board/board.c |  3 +
 .../custom_board/pcm5102a/include/pcm5102a.h  | 49 ++++++++++
 components/custom_board/pcm5102a/pcm5102a.c   | 94 +++++++++++++++++++
 6 files changed, 171 insertions(+)
 create mode 100644 components/custom_board/pcm5102a/include/pcm5102a.h
 create mode 100644 components/custom_board/pcm5102a/pcm5102a.c

diff --git a/components/custom_board/CMakeLists.txt b/components/custom_board/CMakeLists.txt
index dc21f86..5a1d737 100644
--- a/components/custom_board/CMakeLists.txt
+++ b/components/custom_board/CMakeLists.txt
@@ -16,6 +16,12 @@ if(CONFIG_AUDIO_BOARD_CUSTOM)
 	list(APPEND COMPONENT_SRCS ./pcm51xx/pcm51xx.c)
   endif()
 
+  if(CONFIG_DAC_PCM5102A)
+	message(STATUS "Selected DAC is " CONFIG_DAC_PCM5102A)
+	list(APPEND COMPONENT_ADD_INCLUDEDIRS ./pcm5102a/include)
+	list(APPEND COMPONENT_SRCS ./pcm5102a/pcm5102a.c)
+  endif()
+
   if(CONFIG_DAC_MA120X0)
 	message(STATUS "Selected DAC is " CONFIG_DAC_MA120X0)
 	list(APPEND COMPONENT_ADD_INCLUDEDIRS ./ma120x0/include)
diff --git a/components/custom_board/Kconfig.projbuild b/components/custom_board/Kconfig.projbuild
index 705a43f..ae2b159 100644
--- a/components/custom_board/Kconfig.projbuild
+++ b/components/custom_board/Kconfig.projbuild
@@ -10,6 +10,9 @@ menu "Custom Audio Board"
         config DAC_PCM51XX
             bool "TI PCM51XX/TAS57XX based DAC"
 
+        config DAC_PCM5102A
+            bool "TI PCM5102A based DAC"
+
         config DAC_MA120
             bool "Infineon MA120 ClassD AMP"
 
@@ -134,4 +137,15 @@ menu "Custom Audio Board"
                  GPIO number low if clip observed
      endmenu
 
+     menu "TI PCM5102A interface Configuration"
+        depends on DAC_PCM5102A
+
+        config PCM5102A_MUTE_PIN
+            int "Master mute/unmute for PCM5102A"
+            default 18
+            help
+                GPIO number to control mute/unmute.
+                This is labeled "X(S)MT" on chip/boards
+    endmenu
+
 endmenu
diff --git a/components/custom_board/component.mk b/components/custom_board/component.mk
index 75ac2e7..e5fbe4d 100644
--- a/components/custom_board/component.mk
+++ b/components/custom_board/component.mk
@@ -12,6 +12,11 @@ COMPONENT_ADD_INCLUDEDIRS += ./pcm51xx/include
 COMPONENT_SRCDIRS += ./pcm51xx
 endif
 
+ifdef CONFIG_DAC_PCM5102A
+COMPONENT_ADD_INCLUDEDIRS += ./pcm5102a/include
+COMPONENT_SRCDIRS += ./pcm5102a
+endif
+
 ifdef CONFIG_DAC_MA120X0
 COMPONENT_ADD_INCLUDEDIRS += ./ma120x0/include
 COMPONENT_SRCDIRS += ./ma120x0
diff --git a/components/custom_board/generic_board/board.c b/components/custom_board/generic_board/board.c
index 8f9cff2..ea6865a 100644
--- a/components/custom_board/generic_board/board.c
+++ b/components/custom_board/generic_board/board.c
@@ -34,6 +34,9 @@
 #if CONFIG_DAC_PCM51XX
 extern audio_hal_func_t AUDIO_CODEC_PCM51XX_DEFAULT_HANDLE;
 #define AUDIO_CODEC_DEFAULT_HANDLE AUDIO_CODEC_PCM51XX_DEFAULT_HANDLE
+#elif CONFIG_DAC_PCM5102A
+extern audio_hal_func_t AUDIO_CODEC_PCM5102A_DEFAULT_HANDLE;
+#define AUDIO_CODEC_DEFAULT_HANDLE AUDIO_CODEC_PCM5102A_DEFAULT_HANDLE
 #elif CONFIG_DAC_MA120X0
 extern audio_hal_func_t AUDIO_CODEC_MA120X0_DEFAULT_HANDLE;
 #define AUDIO_CODEC_DEFAULT_HANDLE AUDIO_CODEC_MA120X0_DEFAULT_HANDLE
diff --git a/components/custom_board/pcm5102a/include/pcm5102a.h b/components/custom_board/pcm5102a/include/pcm5102a.h
new file mode 100644
index 0000000..8de0fbc
--- /dev/null
+++ b/components/custom_board/pcm5102a/include/pcm5102a.h
@@ -0,0 +1,49 @@
+/*
+ * TI PCM5102A audio hal
+ */
+
+#ifndef _PCM5102A_H_
+#define _PCM5102A_H_
+
+#include "audio_hal.h"
+#include "esp_err.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Initialize PCM5102A codec chip
+ */
+esp_err_t pcm5102a_init(audio_hal_codec_config_t *codec_cfg);
+
+/**
+ * Deinitialize PCM5102A codec chip
+ */
+esp_err_t pcm5102a_deinit(void);
+
+/**
+ * Set volume - NOT AVAILABLE
+ */
+esp_err_t pcm5102a_set_volume(int vol);
+
+/**
+ * Get volume - NOT AVAILABLE
+ */
+esp_err_t pcm5102a_get_volume(int *value);
+
+/**
+ * Set PCM5102A mute or not
+ */
+esp_err_t pcm5102a_set_mute(bool enable);
+
+/**
+ * Get PCM5102A mute status - NOT IMPLEMENTED
+ */
+esp_err_t pcm5102a_get_mute(bool *enabled);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/components/custom_board/pcm5102a/pcm5102a.c b/components/custom_board/pcm5102a/pcm5102a.c
new file mode 100644
index 0000000..f116796
--- /dev/null
+++ b/components/custom_board/pcm5102a/pcm5102a.c
@@ -0,0 +1,94 @@
+/*
+ * TI PCM5102A audio hal
+ * 
+ * Mostly stubs (no I2C or volume control)
+ * Configuration of mute/unmute gpio in init (connected to XSMT)
+ */
+
+#include "pcm5102a.h"
+
+#include "board.h"
+#include "esp_log.h"
+#include <driver/gpio.h>
+
+static const char *TAG = "PCM5102A";
+
+
+#define PCM5102A_ASSERT(a, format, b, ...) \
+  if ((a) != 0) {                         \
+    ESP_LOGE(TAG, format, ##__VA_ARGS__); \
+    return b;                             \
+  }
+
+esp_err_t pcm5102a_ctrl(audio_hal_codec_mode_t mode,
+                       audio_hal_ctrl_t ctrl_state);
+esp_err_t pcm5102a_config_iface(audio_hal_codec_mode_t mode,
+                               audio_hal_codec_i2s_iface_t *iface);
+
+
+audio_hal_func_t AUDIO_CODEC_PCM5102A_DEFAULT_HANDLE = {
+    .audio_codec_initialize = pcm5102a_init,
+    .audio_codec_deinitialize = pcm5102a_deinit,
+    .audio_codec_ctrl = pcm5102a_ctrl,
+    .audio_codec_config_iface = pcm5102a_config_iface,
+    .audio_codec_set_mute = pcm5102a_set_mute,
+    .audio_codec_set_volume = pcm5102a_set_volume,
+    .audio_codec_get_volume = pcm5102a_get_volume,
+    .audio_hal_lock = NULL,
+    .handle = NULL,
+};
+
+esp_err_t pcm5102a_init(audio_hal_codec_config_t *codec_cfg) {
+  esp_err_t ret;
+
+  gpio_config_t io_conf;
+
+  io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
+  io_conf.mode = GPIO_MODE_OUTPUT;
+  io_conf.pin_bit_mask = (1ULL << CONFIG_PCM5102A_MUTE_PIN);
+  io_conf.pull_down_en = 0;
+  io_conf.pull_up_en = 0;
+
+  ret = gpio_config(&io_conf);
+  if (ret != ESP_OK)
+  {
+    ESP_LOGE(TAG, "Mute gpio config failed for pin %d", CONFIG_PCM5102A_MUTE_PIN);
+  }
+  else
+  {
+    gpio_set_level(CONFIG_PCM5102A_MUTE_PIN, 0);
+    ESP_LOGD(TAG, "Setup mute (XMT) output %d\n", CONFIG_PCM5102A_MUTE_PIN);
+  }
+
+  return ret;
+}
+
+esp_err_t pcm5102a_set_volume(int vol) {
+  return ESP_OK;
+}
+
+esp_err_t pcm5102a_get_volume(int *value) {
+  return ESP_OK;
+}
+
+esp_err_t pcm5102a_set_mute(bool enable) {
+  return gpio_set_level(CONFIG_PCM5102A_MUTE_PIN, enable ? 0 : 1);
+}
+
+esp_err_t pcm5102a_get_mute(bool *enabled) {
+  return ESP_OK;
+}
+
+esp_err_t pcm5102a_deinit(void) {
+  return gpio_reset_pin(CONFIG_PCM5102A_MUTE_PIN);
+}
+
+esp_err_t pcm5102a_ctrl(audio_hal_codec_mode_t mode,
+                       audio_hal_ctrl_t ctrl_state) {
+  return ESP_OK;
+}
+
+esp_err_t pcm5102a_config_iface(audio_hal_codec_mode_t mode,
+                               audio_hal_codec_i2s_iface_t *iface) {
+  return ESP_OK;
+}