146 lines
5.8 KiB
HTML
146 lines
5.8 KiB
HTML
<!DOCTYPE html>
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
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<head>
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<meta charset="utf-8" />
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<meta name="generator" content="pandoc" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes" />
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<title>Release Notes for WM8994 Component Drivers</title>
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<style type="text/css">
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code{white-space: pre-wrap;}
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span.smallcaps{font-variant: small-caps;}
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span.underline{text-decoration: underline;}
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div.column{display: inline-block; vertical-align: top; width: 50%;}
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</style>
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<link rel="stylesheet" href="../../../../_htmresc/mini-st.css" />
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<script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv-printshiv.min.js"></script>
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<![endif]-->
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</head>
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<body>
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<div class="row">
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<div class="col-sm-12 col-lg-4">
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<div class="card fluid">
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<div class="sectione dark">
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<center>
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<h1 id="release-notes-for-wm8994-component-drivers"><small>Release Notes for</small> <mark>WM8994 Component Drivers</mark></h1>
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<p>Copyright © 2016 STMicroelectronics<br />
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</p>
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<a href="https://www.st.com" class="logo"><img src="../../../../_htmresc/st_logo.png" alt="ST logo" /></a>
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</center>
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</div>
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</div>
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<h1 id="license">License</h1>
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<p>Licensed by ST under BSD 3-Clause license (the "License"). You may not use this package except in compliance with the License. You may obtain a copy of the License at:</p>
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<p><a href="https://opensource.org/licenses/BSD-3-Clause">https://opensource.org/licenses/BSD-3-Clause</a></p>
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<h1 id="purpose">Purpose</h1>
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<p>This directory contains the WM8994 component drivers.</p>
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</div>
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<div class="col-sm-12 col-lg-8">
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<h1 id="update-history">Update History</h1>
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<div class="collapse">
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<input type="checkbox" id="collapse-section22" checked aria-hidden="true"> <label for="collapse-section22" aria-hidden="true">V2.3.1 / 03-April-2019</label>
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<div>
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<h2 id="main-changes">Main Changes</h2>
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<ul>
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<li>Update release notes format</li>
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<li>Reformat the BSD 3-Clause license declaration in the files header (replace license terms by a web reference to OSI website where those terms lie)</li>
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</ul>
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</div>
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</div>
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<div class="collapse">
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<input type="checkbox" id="collapse-section19" aria-hidden="true"> <label for="collapse-section19" aria-hidden="true">V2.3.0 / 24-January-2018</label>
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<div>
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<h2 id="main-changes-1">Main Changes</h2>
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<ul>
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<li>wm8994.c: fix no audio output issue</li>
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</ul>
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</div>
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</div>
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<div class="collapse">
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<input type="checkbox" id="collapse-section18" aria-hidden="true"> <label for="collapse-section18" aria-hidden="true">V2.2.0 / 05-June-2017</label>
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<div>
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<h2 id="main-changes-2">Main Changes</h2>
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<ul>
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<li>Add support of ColdStartup sequence for headphone
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<ul>
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<li>Unmute is performed in a gradual way to minimize pop noise.</li>
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<li>Update wm8994_SetFrequency to support AUDIO_FREQUENCY_32K</li>
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<li>Update comments to be used for PDSC generation</li>
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</ul></li>
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</ul>
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</div>
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</div>
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<div class="collapse">
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<input type="checkbox" id="collapse-section185" aria-hidden="true"> <label for="collapse-section185" aria-hidden="true">V2.1.0 / 22-February-2016</label>
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<div>
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<h2 id="main-changes-3">Main Changes</h2>
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<ul>
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<li>wm8994.c
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<ul>
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<li>Update wm8994_Init() by adding the support of analog microphone connected to INPUT LINE 1, INPUT_DEVICE_DIGITAL_MICROPHONE_1 and INPUT_DEVICE_DIGITAL_MIC1_MIC2</li>
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<li>Add AUDIO_FREQUENCY_32K as possible AudioFreq value</li>
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</ul></li>
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<li>wm8994.h
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<ul>
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<li>Add INPUT_DEVICE_DIGITAL_MIC1_MIC2 define</li>
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</ul></li>
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</ul>
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</div>
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</div>
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<div class="collapse">
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<input type="checkbox" id="collapse-section17" aria-hidden="true"> <label for="collapse-section17" aria-hidden="true">V2.0.0 / 24-June-2015</label>
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<div>
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<h2 id="main-changes-4">Main Changes</h2>
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<ul>
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<li>wm8994.h
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<ul>
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<li>Add codec de-initialization function: wm8994_DeInit()</li>
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<li>Add Audio IO de-initialization function prototype: AUDIO_IO_DeInit()</li>
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<li>Add INPUT_DEVICE_INPUT_LINE_1 and INPUT_DEVICE_INPUT_LINE_1 support for AUDIO IN</li>
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<li>Add Input audio volume control support</li>
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</ul></li>
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<li>wm8994.c
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<ul>
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<li>Update wm8994_Init() function to support the Audio IN</li>
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<li>Update wm8994_Stop() function to only stop the codec if it was configured</li>
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<li>Enable VMID_BUF_ENA bit in R57 ANTIPOP register (address 0x39) for all configurations</li>
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</ul></li>
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</ul>
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<p><strong><span class="underline"><span style="font-size: 10pt; font-family: Verdana; color: black;">NOTE</span></span></strong> This release must be used with BSP Common driver V4.0.0 or later.</p>
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</div>
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</div>
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<div class="collapse">
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<input type="checkbox" id="collapse-section16" aria-hidden="true"> <label for="collapse-section16" aria-hidden="true">V1.0.2 / 12-February-2015</label>
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<div>
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<h2 id="main-changes-5">Main Changes</h2>
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<ul>
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<li>wm8994.c: Update the wm8994_Init() function to set the volume after enabling the dynamic charge pump power control mode</li>
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</ul>
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</div>
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</div>
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<div class="collapse">
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<input type="checkbox" id="collapse-section165" aria-hidden="true"> <label for="collapse-section165" aria-hidden="true">V1.0.1 / 28-November-2014</label>
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<div>
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<h2 id="main-changes-6">Main Changes</h2>
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<ul>
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<li>wm8994.h: change “\” by “/” in the include path to fix compilation issue with Linux</li>
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</ul>
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</div>
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</div>
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<div class="collapse">
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<input type="checkbox" id="collapse-section15" aria-hidden="true"> <label for="collapse-section15" aria-hidden="true">V1.0.0 / 18-February-2014</label>
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<div>
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<h2 id="main-changes-7">Main Changes</h2>
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<ul>
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<li>First official release</li>
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</ul>
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</div>
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</div>
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</div>
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</div>
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<footer class="sticky">
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For complete documentation on <mark>STM32 Microcontrollers</mark> , visit: <a href="http://www.st.com/STM32">http://www.st.com/STM32</a>
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</footer>
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</body>
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</html>
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