From 5cf79723ecb9a22de432d169ce65eb19aa651e8a Mon Sep 17 00:00:00 2001 From: Rafaël Carré Date: Tue, 3 Jan 2012 04:39:56 +0000 Subject: move PP specific files to pp/ git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31533 a1c6a512-1295-4272-9138-f99709370657 --- firmware/target/arm/pp/ascodec-pp.c | 82 +++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 firmware/target/arm/pp/ascodec-pp.c (limited to 'firmware/target/arm/pp/ascodec-pp.c') diff --git a/firmware/target/arm/pp/ascodec-pp.c b/firmware/target/arm/pp/ascodec-pp.c new file mode 100644 index 0000000000..49a69d1a11 --- /dev/null +++ b/firmware/target/arm/pp/ascodec-pp.c @@ -0,0 +1,82 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Driver for AS3514 audio codec + * + * Copyright (c) 2007 Daniel Ankers + * Copyright (c) 2007 Christian Gmeiner + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#include "cpu.h" +#include "system.h" + +#include "audiohw.h" +#include "i2s.h" +#include "ascodec-target.h" + +/* + * Initialise the PP I2C and I2S. + */ +void audiohw_init(void) +{ + /* normal outputs for CDI and I2S pin groups */ + DEV_INIT2 &= ~0x300; + + /*mini2?*/ + DEV_INIT1 &=~0x3000000; + /*mini2?*/ + + /* I2S device reset */ + DEV_RS |= DEV_I2S; + DEV_RS &=~DEV_I2S; + + /* I2S device enable */ + DEV_EN |= DEV_I2S; + + /* enable external dev clock clocks */ + DEV_EN |= DEV_EXTCLOCKS; + + /* external dev clock to 24MHz */ + outl(inl(0x70000018) & ~0xc, 0x70000018); + +#ifdef SANSA_E200 + /* Prevent pops on startup */ + GPIOG_ENABLE |= 0x08; + GPIO_SET_BITWISE(GPIOG_OUTPUT_VAL, 0x08); + GPIOG_OUTPUT_EN |= 0x08; +#endif + + i2s_reset(); + + audiohw_preinit(); +} + +void ascodec_suppressor_on(bool on) +{ + /* CHECK: Good for c200 too? */ +#ifdef SANSA_E200 + if (on) { + /* Set pop prevention */ + GPIO_SET_BITWISE(GPIOG_OUTPUT_VAL, 0x08); + } else { + /* Release pop prevention */ + GPIO_CLEAR_BITWISE(GPIOG_OUTPUT_VAL, 0x08); + } +#else + (void)on; +#endif +} -- cgit v1.2.3