WM8904: Add initialization logic
This commit is contained in:
Gregory Nutt
parent
a0607ff2a7
commit
89ed7ab558
@ -320,10 +320,12 @@ menuconfig AUDIO_DEVICES
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bool "Audio Device Support"
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default n
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---help---
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Enable support for audio device drivers.
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This includes drivers for MP3, WMA and Ogg Vorbis encoding,
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decoding, as well as drivers for interfacing with external
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DSP chips to perform custom audio functions.
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Enable support for audio device drivers. This includes drivers for
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MP3, WMA and Ogg Vorbis encoding, decoding, as well as drivers for
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interfacing with external DSP chips to perform custom audio functions.
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NOTE: All of these drivers depend on support from the audio subsystem
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enabled with the AUDIO selection.
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if AUDIO_DEVICES
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source drivers/audio/Kconfig
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@ -6,7 +6,7 @@
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config AUDIO_I2SCHAR
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bool "I2S character driver (for testing only)"
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default n
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depends on I2S
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depends on I2S && AUDIO
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---help---
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This selection enables a simple character driver that supports I2S
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transfers via a read() and write(). The intent of this driver is to
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@ -38,6 +38,7 @@ endif #AUDIO_I2SCHAR
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config VS1053
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bool "VS1053 codec chip"
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default n
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depends on AUDIO
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---help---
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Select to enable support for the VS1053 Audio codec by VLSI Solutions.
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This chip provides encoding and decoding of MP3, WMA, AAC and Ogg
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@ -86,11 +87,11 @@ endif # VS1053
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config AUDIO_WM8904
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bool "WM8904 audio chip"
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default n
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depends on EXPERIMENTAL
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depends on AUDIO && EXPERIMENTAL
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---help---
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Select to enable support for the WM8904 Audio codec by Wolfson
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Microelectonics. This chip is a lower level audio chip.. basically
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an exotic D-to-A. It includes no builtin support for audion CODECS
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an exotic D-to-A. It includes no built-in support for audio CODECS
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The WM8904 provides:
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- Low power consumption
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@ -101,6 +102,9 @@ config AUDIO_WM8904
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- Ground-referenced headphone driver
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- Ground-referenced line outputs
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NOTE: This driver also depends on both I2C and I2S support although
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that dependency is not explicit here.
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if AUDIO_WM8904
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endif # AUDIO_WM8904
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@ -6,11 +6,11 @@
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Reference:
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* "WM8904 Ultra Low Power CODEC for Portable Audio Applications, Pre-
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* References:
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* - "WM8904 Ultra Low Power CODEC for Portable Audio Applications, Pre-
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* Production", September 2012, Rev 3.3, Wolfson Microelectronics
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*
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* The framework for this driver is based on Ken Pettit's VS1053 driver.
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* - The framework for this driver is based on Ken Pettit's VS1053 driver.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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@ -96,7 +96,7 @@
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# define CONFIG_WM8904_WORKER_STACKSIZE 768
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#endif
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#define WM8904_DUMMY 0xFF
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#define WM8904_DUMMY 0xff
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#define WM8904_DEFAULT_XTALI 12288000
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#define WM8904_DATA_FREQ 20000000
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#define WM8904_RST_USECS 2000
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@ -199,6 +199,13 @@ static int wm8904_cancelbuffer(FAR struct audio_lowerhalf_s *dev,
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static int wm8904_ioctl(FAR struct audio_lowerhalf_s *dev, int cmd,
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unsigned long arg);
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/* Initialization */
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static void wm8904_audio_output(FAR struct wm8904_dev_s *priv);
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#if 0 /* Not used */
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static void wm8904_audio_input(FAR struct wm8904_dev_s *priv);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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@ -241,11 +248,71 @@ static const struct audio_ops_s g_audioops =
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static uint16_t wm8904_readreg(FAR struct wm8904_dev_s *priv, uint8_t regaddr)
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{
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FAR struct i2c_dev_s *i2c = priv->i2c;
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uint16_t regval;
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#warning Missing logic
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audvdbg("Read: %02x -> %04x\n", regaddr, regval);
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return regval;
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int retries;
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/* Try up to three times to read the register */
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for (retries = 1; retries <= 3; retries++)
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{
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struct i2c_msg_s msg[2];
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uint8_t data[2];
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int ret;
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/* Set up to write the address */
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msg[0].addr = priv->lower->address;
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msg[0].flags = 0;
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msg[0].buffer = ®addr;
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msg[0].length = 1;
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/* Followed by the read data */
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msg[1].addr = priv->lower->address;
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msg[1].flags = I2C_M_READ;
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msg[1].buffer = data;
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msg[1].length = 2;
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/* Read the register data. The returned value is the number messages
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* completed.
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*/
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ret = I2C_TRANSFER(priv->i2c, msg, 2);
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if (ret < 0)
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{
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#ifdef CONFIG_I2C_RESET
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/* Perhaps the I2C bus is locked up? Try to shake the bus free */
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idbg("WARNING: I2C_TRANSFER failed: %d ... Resetting\n", ret);
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ret = up_i2creset(priv->i2c);
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if (ret < 0)
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{
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idbg("ERROR: up_i2creset failed: %d\n", ret);
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break;
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}
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#else
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idbg("ERROR: I2C_TRANSFER failed: %d\n", ret);
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#endif
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}
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else
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{
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uint16_t regval;
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/* The I2C transfer was successful... break out of the loop and
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* return the value read.
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*/
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regval = ((uint16_t)data[0] << 8) | (uint16_t)data[1]
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audvdbg("READ: %02x -> %04x\n", regaddr, regval);
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return regval;
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}
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ivdbg("retries=%d regaddr=%04x\n", retries, regaddr);
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}
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/* No error indication is returned on a failure... just return zero */
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return 0;
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}
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/************************************************************************************
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@ -256,18 +323,70 @@ static uint16_t wm8904_readreg(FAR struct wm8904_dev_s *priv, uint8_t regaddr)
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*
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************************************************************************************/
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static void wm8904_writereg(FAR struct wm8904_dev_s *priv, uint8_t regaddr, uint16_t regval)
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static void wm8904_writereg(FAR struct wm8904_dev_s *priv, uint8_t regaddr,
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uint16_t regval)
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{
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FAR struct i2c_dev_s *i2c = priv->i2c;
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int retries;
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/* Select the AUDIO_CTRL device on the I2C bus */
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/* Try up to three times to read the register */
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audvdbg("Write: %02x <- %04x\n", regaddr, regval);
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#warning "Missing logic"
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for (retries = 1; retries <= 3; retries++)
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{
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struct i2c_msg_s msg[2];
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uint8_t data[2];
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int ret;
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/* Short delay after a write for WM8904 processing time */
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/* REVISIT: Necessary for the WM8904? */
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usleep(10);
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/* Set up to write the address */
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msg[0].addr = priv->lower->address;
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msg[0].flags = 0;
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msg[0].buffer = ®addr;
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msg[0].length = 1;
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/* Followed by the read data */
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data[0] = regval >> 8;
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data[1] = regval & 0xff;
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msg[1].addr = priv->lower->address;
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msg[1].flags = I2C_M_NORESTART;
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msg[1].buffer = data;
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msg[1].length = 2;
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/* Read the register data. The returned value is the number messages
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* completed.
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*/
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ret = I2C_TRANSFER(priv->i2c, msg, 2);
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if (ret < 0)
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{
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#ifdef CONFIG_I2C_RESET
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/* Perhaps the I2C bus is locked up? Try to shake the bus free */
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idbg("WARNING: I2C_TRANSFER failed: %d ... Resetting\n", ret);
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ret = up_i2creset(priv->i2c);
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if (ret < 0)
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{
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idbg("ERROR: up_i2creset failed: %d\n", ret);
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break;
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}
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#else
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idbg("ERROR: I2C_TRANSFER failed: %d\n", ret);
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#endif
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}
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else
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{
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/* The I2C transfer was successful... break out of the loop and
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* return the value read.
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*/
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audvdbg("Write: %02x <- %04x\n", regaddr, regval);
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return;
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}
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ivdbg("retries=%d regaddr=%04x\n", retries, regaddr);
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}
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}
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/************************************************************************************
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@ -1457,6 +1576,190 @@ static int wm8904_release(FAR struct audio_lowerhalf_s *dev)
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return OK;
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}
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/****************************************************************************
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* Name: wm8904_audio_output
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*
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* Description:
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* Initialize and configure the WM8904 device as an audio output device.
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*
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* Input Parameters:
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* prive - A reference to the driver state structure
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*
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* Returned Value:
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* None. No failures are detected.
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*
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****************************************************************************/
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static void wm8904_audio_output(FAR struct wm8904_dev_s *priv)
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{
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uint16_t regval;
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/* Bias Control.
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* Preserve undocumented default bit.WM8904_DUMMY
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*/
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regval = WM8904_ISEL_HIGH | WM8904_BIAS_ENA | 0x0010;
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wm8904_writereg(priv, WM8904_BIAS_CTRL, regval);
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/* VMID Control */
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regval = WM8904_VMID_BUF_ENA | WM8904_VMID_RES_NORMAL | WM8904_VMID_ENA;
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wm8904_writereg(priv, WM8904_VMID_CTRL, regval);
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/* Mic Bias Control 0 */
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/* MICDET_ENA=1, MICBIAS_ENA=1 */
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regval = WM8904_MICDET_ENA | WM8904_MICBIAS_ENA;
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wm8904_writereg(priv, WM8904_MIC_BIAS_CTRL0, regval);
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/* Mic Bias Control 1. */
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wm8904_writereg(priv, WM8904_MIC_BIAS_CTRL1, 0xc000);
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/* Power Management 0 */
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regval = WM8904_INL_ENA | WM8904_INR_ENA;
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wm8904_writereg(priv, WM8904_PM0, regval);
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/* Power Management 2 */
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regval = WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA;
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wm8904_writereg(priv, WM8904_PM2, regval);
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/* Power Management 6 */
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/* DACL_ENA=1, DACR_ENA=1, ADCL_ENA=1, ADCR_ENA=1 */
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regval = WM8904_DACL_ENA | WM8904_DACR_ENA | WM8904_ADCL_ENA | WM8904_ADCR_ENA;
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wm8904_writereg(priv, WM8904_PM6, regval);
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/* Clock Rates 0.
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*
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* This value sets TOCLK_RATE_DIV16=0, TOCLK_RATE_X4=0, and MCLK_DIV=0 while
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* preserving the state of some undocumented bits (see wm8904.h).
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*/
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wm8904_writereg(priv, WM8904_CLKRATE0, 0x845e);
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/* Clock Rates 2 */
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regval = WM8904_SYSCLK_SRC | WM8904_CLK_SYS_ENA | WM8904_CLK_DSP_ENA;
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wm8904_writereg(priv, WM8904_CLKRATE2, regval);
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/* Audio Interface 1.
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*
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* This value sets AIFADC_TDM=0, AIFADC_TDM_CHAN=0, BCLK_DIR=1 while preserving
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* the state of some undocumented bits (see wm8904.h).
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*/
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wm8904_writereg(priv, WM8904_AIF1, 0x404A);
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/* Audio Interface 3 */
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regval = WM8904_LRCLK_DIR | WM8904_LRCLK_RATE(64);
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wm8904_writereg(priv, WM8904_AIF3, regval);
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/* DAC Digital 1 */
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wm8904_writereg(priv, WM8904_DAC_DIGI1, 0);
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/* Analogue Left Input 0 */
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/* Analogue Right Input 0 */
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regval = WM8904_IN_VOL(5);
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wm8904_writereg(priv, WM8904_ANA_LEFT_IN0, regval);
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wm8904_writereg(priv, WM8904_ANA_RIGHT_IN0, regval);
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/* Analogue Left Input 1 */
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wm8904_writereg(priv, WM8904_ANA_LEFT_IN1, 0);
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wm8904_writereg(priv, WM8904_ANA_RIGHT_IN1, 0);
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/* Analogue OUT1 Right */
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regval = WM8904_HPOUT_MUTE | WM8904_HPOUTZC | WM8904_HPOUT_VOL(29);
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wm8904_writereg(priv, WM8904_ANA_RIGHT_OUT1, regval);
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/* DC Servo 0 */
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/* DCS_ENA_CHAN_1=1, DCS_ENA_CHAN_0=1 */
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regval = WM8904_DCS_ENA_CHAN_1 | WM8904_DCS_ENA_CHAN_0;
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wm8904_writereg(priv, WM8904_DC_SERVO0, regval);
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/* Analogue HP 0 */
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regval = WM8904_HPL_RMV_SHORT | WM8904_HPL_ENA_OUTP | WM8904_HPL_ENA_DLY | WM8904_HPL_ENA |
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WM8904_HPR_RMV_SHORT | WM8904_HPR_ENA_OUTP | WM8904_HPR_ENA_DLY | WM8904_HPR_ENA;
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wm8904_writereg(priv, WM8904_ANA_HP0, regval);
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/* Charge Pump 0 */
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wm8904_writereg(priv, WM8904_CHG_PUMP0, WM8904_CP_ENA);
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/* Class W 0 */
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regval = WM8904_CP_DYN_PWR | 0x0004;
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wm8904_writereg(priv, WM8904_CLASS_W0, regval);
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/* FLL Control 1 */
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wm8904_writereg(priv, WM8904_FLL_CTRL1, 0);
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regval = WM8904_FLL_FRACN_ENA | WM8904_FLL_ENA;
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wm8904_writereg(priv, WM8904_FLL_CTRL1, regval);
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/* FLL Control 2 */
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regval = WM8904_FLL_OUTDIV(8) | WM8904_FLL_FRATIO_DIV16;
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wm8904_writereg(priv, WM8904_FLL_CTRL2, regval);
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/* FLL Control 3 */
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wm8904_writereg(priv, WM8904_FLL_CTRL3, 16384);
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/* FLL Control 4 */
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regval = WM8904_FLL_N(187) | WM8904_FLL_GAIN_X1;
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wm8904_writereg(priv, WM8904_FLL_CTRL4, regval);
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wm8904_writereg(priv, WM8904_DUMMY, 0x55AA);
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}
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/****************************************************************************
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* Name: wm8904_audio_input
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*
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* Description:
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* Initialize and configure the WM8904 device as an audio output device
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* (Right input only).
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*
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* Input Parameters:
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* prive - A reference to the driver state structure
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*
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* Returned Value:
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* None. No failures are detected.
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*
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****************************************************************************/
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#if 0 /* Not used */
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static void wm8904_audio_input(FAR struct wm8904_dev_s *priv)
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{
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/* Analogue Left Input 0 */
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wm8904_writereg(priv, WM8904_ANA_LEFT_IN0, WM8904_INMUTE);
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/* Analogue Right Input 0 */
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wm8904_writereg(priv, WM8904_ANA_RIGHT_IN0, WM8904_IN_VOL(5));
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/* Analogue Left Input 1 */
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wm8904_writereg(priv, WM8904_ANA_LEFT_IN1, 0);
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/* Analogue Right Input 1 */
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wm8904_writereg(priv, WM8904_ANA_RIGHT_IN1, WM8904_IP_SEL_N_IN2L);
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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@ -1485,6 +1788,7 @@ FAR struct audio_lowerhalf_s *
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FAR const struct wm8904_lower_s *lower, unsigned int devno)
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{
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FAR struct wm8904_dev_s *priv;
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uint16_t regval;
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/* Sanity check */
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@ -1527,17 +1831,28 @@ FAR struct audio_lowerhalf_s *
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I2C_SETFREQUENCY(i2c, lower->frequency);
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I2C_SETADDRESS(i2c, lower->address, 7);
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/* Verify the device ID read from the chip */
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#warning Missing logic
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/* Software reset */
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/* Initialize the WM8904 hardware */
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#warning Missing logic
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wm8904_writereg(priv, WM8904_SWRST, 0);
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/* Verify that WM8904 is present and available on this I2C */
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regval = wm8904_readreg(priv, WM8904_ID);
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if (regval != WM8904_SW_RST_DEV_ID1)
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{
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||||
auddbg("ERROR: WM8904 not found: ID=%04x\n", regval);
|
||||
return -ENODEV;
|
||||
}
|
||||
WM8904_DUMMY
|
||||
/* Configure the WM8904 hardware as an audio input device */
|
||||
|
||||
wm8904_audio_output(priv);
|
||||
|
||||
/* Attach our ISR to this device */
|
||||
|
||||
WM8904_ATTACH(lower, wm8904_interrupt, priv);
|
||||
|
||||
/* Put the drive in the 'shutdown' status */
|
||||
/* Put the driver in the 'shutdown' state */
|
||||
|
||||
wm8904_shutdown(&priv->dev);
|
||||
}
|
||||
|
||||
@ -57,7 +57,8 @@
|
||||
|
||||
/* Registers Addresses ******************************************************/
|
||||
|
||||
#define WM8904_SWRST_ID 0x00 /* SW Reset and ID */
|
||||
#define WM8904_SWRST 0x00 /* SW Reset and ID */
|
||||
#define WM8904_ID 0x00 /* SW Reset and ID */
|
||||
#define WM8904_BIAS_CTRL 0x04 /* Bias Control */
|
||||
#define WM8904_VMID_CTRL 0x05 /* VMID Control */
|
||||
#define WM8904_MIC_BIAS_CTRL0 0x06 /* Mic Bias Control 0 */
|
||||
@ -77,7 +78,7 @@
|
||||
#define WM8904_DAC_VOL_LEFT 0x1e /* DAC Digital Volume Left */
|
||||
#define WM8904_DAC_VOL_RIGHT 0x1f /* DAC Digital Volume Right */
|
||||
#define WM8904_DAC_DIGI0 0x20 /* DAC Digital 0 */
|
||||
#define WM8904_DATA_DIGI1 0x21 /* DAC Digital 1 */
|
||||
#define WM8904_DAC_DIGI1 0x21 /* DAC Digital 1 */
|
||||
#define WM8904_ADC_VOL_LEFT 0x24 /* ADC Digital Volume Left */
|
||||
#define WM8904_ADC_VOL_RIGHT 0x25 /* ADC Digital Volume Right */
|
||||
#define WM8904_ADC_DIGI 0x26 /* ADC Digital */
|
||||
@ -156,6 +157,109 @@
|
||||
#define WM8904_FLL_NCO_TEST0 0xf7 /* FLL NCO Test 0 */
|
||||
#define WM8904_FLL_NCO_TEST1 0xf8 /* FLL NCO Test 1 */
|
||||
|
||||
/* Register Default Values **************************************************/
|
||||
/* Registers have some undocumented bits set on power up. These probably
|
||||
* should be retained on writes (?).
|
||||
*/
|
||||
|
||||
#define WM8904_SWRST_DEFAULT 0x8904
|
||||
#define WM8904_ID_DEFAULT 0x0018
|
||||
#define WM8904_BIAS_CTRL_DEFAULT 0x0000
|
||||
#define WM8904_VMID_CTRL_DEFAULT 0x0000
|
||||
#define WM8904_MIC_BIAS_CTRL0_DEFAULT 0x0000
|
||||
#define WM8904_MIC_BIAS_CTRL1_DEFAULT 0x0000
|
||||
#define WM8904_ANALOG_ADC_DEFAULT 0x0001
|
||||
#define WM8904_PM0_DEFAULT 0x0000
|
||||
#define WM8904_PM2_DEFAULT 0x0000
|
||||
#define WM8904_PM3_DEFAULT 0x0000
|
||||
#define WM8904_PM6_DEFAULT 0x0000
|
||||
#define WM8904_CLKRATE0_DEFAULT 0x8c5e
|
||||
#define WM8904_CLKRATE1_DEFAULT 0x0c05
|
||||
#define WM8904_CLKRATE2_DEFAULT 0x0000
|
||||
#define WM8904_AIF0_DEFAULT 0x0050
|
||||
#define WM8904_AIF1_DEFAULT 0x000a
|
||||
#define WM8904_AIF2_DEFAULT 0x00e4
|
||||
#define WM8904_AIF3_DEFAULT 0x0040
|
||||
#define WM8904_DAC_VOL_LEFT_DEFAULT 0x00c0
|
||||
#define WM8904_DAC_VOL_RIGHT_DEFAULT 0x00c0
|
||||
#define WM8904_DAC_DIGI0_DEFAULT 0x0000
|
||||
#define WM8904_DAC_DIGI1_DEFAULT 0x0004
|
||||
#define WM8904_ADC_VOL_LEFT_DEFAULT 0x00c0
|
||||
#define WM8904_ADC_VOL_RIGHT_DEFAULT 0x00c0
|
||||
#define WM8904_ADC_DIGI_DEFAULT 0x0010
|
||||
#define WM8904_MIC_DIGI_DEFAULT 0x0000
|
||||
#define WM8904_DRC0_DEFAULT 0x01af
|
||||
#define WM8904_DRC1_DEFAULT 0x3248
|
||||
#define WM8904_DRC2_DEFAULT 0x0000
|
||||
#define WM8904_DRC3_DEFAULT 0x0000
|
||||
#define WM8904_ANA_LEFT_IN0_DEFAULT 0x0085
|
||||
#define WM8904_ANA_RIGHT_IN0_DEFAULT 0x0085
|
||||
#define WM8904_ANA_LEFT_IN1_DEFAULT 0x0044
|
||||
#define WM8904_ANA_RIGHT_IN1_DEFAULT 0x0044
|
||||
#define WM8904_ANA_LEFT_OUT1_DEFAULT 0x002d
|
||||
#define WM8904_ANA_RIGHT_OUT1_DEFAULT 0x002d
|
||||
#define WM8904_ANA_LEFT_OUT2_DEFAULT 0x0039
|
||||
#define WM8904_ANA_RIGHT_OUT2_DEFAULT 0x0039
|
||||
#define WM8904_ANA_OUT12_ZC_DEFAULT 0x0000
|
||||
#define WM8904_DC_SERVO0_DEFAULT 0x0000
|
||||
#define WM8904_DC_SERVO2_DEFAULT 0xaaaa
|
||||
#define WM8904_DC_SERVO4_DEFAULT 0xaaaa
|
||||
#define WM8904_DC_SERVO5_DEFAULT 0xaaaa
|
||||
#define WM8904_DC_SERVO6_DEFAULT 0x0000
|
||||
#define WM8904_DC_SERVO7_DEFAULT 0x0000
|
||||
#define WM8904_DC_SERVO8_DEFAULT 0x0000
|
||||
#define WM8904_DC_SERVO9_DEFAULT 0x0000
|
||||
#define WM8904_DC_SERVO_RDBACK_DEFAULT 0x0000
|
||||
#define WM8904_ANA_HP0_DEFAULT 0x0000
|
||||
#define WM8904_ANA_LINEOUT0_DEFAULT 0x0000
|
||||
#define WM8904_CHG_PUMP0_DEFAULT 0x0000
|
||||
#define WM8904_CLASS_W0_DEFAULT 0x0000
|
||||
#define WM8904_WR_SEQ0_DEFAULT 0x0000
|
||||
#define WM8904_WR_SEQ1_DEFAULT 0x0000
|
||||
#define WM8904_WR_SEQ2_DEFAULT 0x0000
|
||||
#define WM8904_WR_SEQ3_DEFAULT 0x0000
|
||||
#define WM8904_WR_SEQ4_DEFAULT 0x0000
|
||||
#define WM8904_FLL_CTRL1_DEFAULT 0x0000
|
||||
#define WM8904_FLL_CTRL2_DEFAULT 0x0007
|
||||
#define WM8904_FLL_CTRL3_DEFAULT 0x0000
|
||||
#define WM8904_FLL_CTRL4_DEFAULT 0x2ee0
|
||||
#define WM8904_FLL_CTRL5_DEFAULT 0x0004
|
||||
#define WM8904_GPIO_CTRL1_DEFAULT 0x0014
|
||||
#define WM8904_GPIO_CTRL2_DEFAULT 0x0010
|
||||
#define WM8904_GPIO_CTRL3_DEFAULT 0x0010
|
||||
#define WM8904_GPIO_CTRL4_DEFAULT 0x0000
|
||||
#define WM8904_DIGI_PULLS_DEFAULT 0x0000
|
||||
#define WM8904_INT_MASK_DEFAULT 0xffff
|
||||
#define WM8904_INT_POL_DEFAULT 0x0000
|
||||
#define WM8904_INT_DEBOUNCE_DEFAULT 0x0000
|
||||
#define WM8904_EQ1_DEFAULT 0x0000
|
||||
#define WM8904_EQ2_DEFAULT 0x000c
|
||||
#define WM8904_EQ3_DEFAULT 0x000c
|
||||
#define WM8904_EQ4_DEFAULT 0x000c
|
||||
#define WM8904_EQ5_DEFAULT 0x000c
|
||||
#define WM8904_EQ6_DEFAULT 0x000c
|
||||
#define WM8904_EQ7_DEFAULT 0x0fca
|
||||
#define WM8904_EQ8_DEFAULT 0x0400
|
||||
#define WM8904_EQ9_DEFAULT 0x00d8
|
||||
#define WM8904_EQ10_DEFAULT 0x1eb5
|
||||
#define WM8904_EQ11_DEFAULT 0xf145
|
||||
#define WM8904_EQ12_DEFAULT 0x0b75
|
||||
#define WM8904_EQ13_DEFAULT 0x01c5
|
||||
#define WM8904_EQ14_DEFAULT 0x1c54
|
||||
#define WM8904_EQ15_DEFAULT 0xf373
|
||||
#define WM8904_EQ16_DEFAULT 0x0a54
|
||||
#define WM8904_EQ17_DEFAULT 0x0558
|
||||
#define WM8904_EQ18_DEFAULT 0x168e
|
||||
#define WM8904_EQ19_DEFAULT 0xf829
|
||||
#define WM8904_EQ20_DEFAULT 0x07ad
|
||||
#define WM8904_EQ21_DEFAULT 0x1103
|
||||
#define WM8904_EQ22_DEFAULT 0x0564
|
||||
#define WM8904_EQ23_DEFAULT 0x0559
|
||||
#define WM8904_EQ24_DEFAULT 0x4000
|
||||
#define WM8904_ADC_TEST_DEFAULT 0x0000
|
||||
#define WM8904_FLL_NCO_TEST0_DEFAULT 0x0000
|
||||
#define WM8904_FLL_NCO_TEST1_DEFAULT 0x0019
|
||||
|
||||
/* Register Bit Definitions *************************************************/
|
||||
|
||||
/* 0x00 SW Reset and ID */
|
||||
|
||||
@ -83,6 +83,16 @@
|
||||
|
||||
/* Default configuration values */
|
||||
|
||||
#ifndef CONFIG_WM8904_I2CFREQUENCY
|
||||
# define CONFIG_WM8904_I2CFREQUENCY 400000
|
||||
#endif
|
||||
|
||||
#if CONFIG_WM8904_I2CFREQUENCY > 400000
|
||||
# warning WM8904 I2C frequency cannot exceed 400KHz
|
||||
# undef CONFIG_WM8904_I2CFREQUENCY
|
||||
# define CONFIG_WM8904_I2CFREQUENCY 400000
|
||||
#endif
|
||||
|
||||
/* Helper macros ************************************************************/
|
||||
|
||||
#define WM8904_ATTACH(s,isr,arg) ((s)->attach(s,isr,arg))
|
||||
|
||||
Loading…
Reference in New Issue
Block a user