feature:add awinic88266a smart pa nuttx driver

awinic88266a smart pa driver use nuttx/audio framework to register audio device,
use i2c to control smart pa configuration

Signed-off-by: genghuihui <genghuihui@xiaomi.com>
Change-Id: I05361a582dde49af71c5dbd08ab9365b4ea0f80a

drivers/audio/Kconfig

@@ -389,4 +389,8 @@ config AUDIO_I2S
 	depends on AUDIO
 	depends on I2S
 
+config AUDIO_AW88266A
+	bool "Audio AWINIC88266A chip"
+	default n
+
 endif # DRIVERS_AUDIO

drivers/audio/Make.defs

@@ -86,6 +86,10 @@ ifeq ($(CONFIG_AUDIO_I2S),y)
 CSRCS += audio_i2s.c
 endif
 
+ifeq ($(CONFIG_AUDIO_AW88266A),y)
+CSRCS += aw88266a.c
+endif
+
 # Include Audio driver support
 
 DEPPATH += --dep-path audio

include/nuttx/audio/aw88266a.h

@@ -0,0 +1,70 @@
+/****************************************************************************
+ * include/nuttx/audio/aw88266a.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __INCLUDE_NUTTX_AUDIO_AW88266A_H
+#define __INCLUDE_NUTTX_AUDIO_AW88266A_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <nuttx/audio/audio.h>
+#include <nuttx/i2c/i2c_master.h>
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+typedef enum
+{
+  CHSEL_LEFT = 0,
+  CHSEL_RIGHT = 1,
+  CHSEL_MONO = 2,
+  CHSEL_NUM,
+}aw_i2s_channel_t;
+
+struct aw88266a_lower_s
+{
+  uint32_t frequency;                 /* I2C frequency */
+  uint8_t address;                    /* I2C device address */
+  aw_i2s_channel_t  channelfmt;       /* IIS channel fmt */
+  int bclk_factor;                    /* BCLK factor */
+  CODE void (*reset)(FAR const struct aw88266a_lower_s *lower);
+};
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: aw88266a_initialize
+ *
+ * Description:
+ *   Initializa awinic88266a smart pa
+ *
+ ****************************************************************************/
+
+FAR struct audio_lowerhalf_s *
+aw88266a_initialize(FAR struct i2c_master_s *i2c,
+                    FAR struct aw88266a_lower_s *lower);
+
+#endif