diff options
author | Michael Sevakis <jethead71@rockbox.org> | 2006-11-13 23:21:54 +0000 |
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committer | Michael Sevakis <jethead71@rockbox.org> | 2006-11-13 23:21:54 +0000 |
commit | cc50c149e9452e7c8ea199fd72f7458ead96bad7 (patch) | |
tree | 78efc4e2c391f0cfcab8fe76777dab63070e64d9 /firmware/target/coldfire/iriver/h100 | |
parent | da55588fc7e0134decd4ba8cc573f507302a5664 (diff) | |
download | rockbox-cc50c149e9452e7c8ea199fd72f7458ead96bad7.tar.gz rockbox-cc50c149e9452e7c8ea199fd72f7458ead96bad7.zip |
H100/General: HAL for S/PDIF and refinement/bufixes in optical output powering/source selection.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11523 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/coldfire/iriver/h100')
-rw-r--r-- | firmware/target/coldfire/iriver/h100/power-h100.c | 25 | ||||
-rw-r--r-- | firmware/target/coldfire/iriver/h100/spdif-h100.c | 83 |
2 files changed, 105 insertions, 3 deletions
diff --git a/firmware/target/coldfire/iriver/h100/power-h100.c b/firmware/target/coldfire/iriver/h100/power-h100.c index 0714ab2d3f..9effeef7c8 100644 --- a/firmware/target/coldfire/iriver/h100/power-h100.c +++ b/firmware/target/coldfire/iriver/h100/power-h100.c @@ -22,6 +22,7 @@ #include "kernel.h" #include "system.h" #include "power.h" +#include "spdif.h" #ifdef CONFIG_TUNER @@ -85,8 +86,23 @@ void spdif_power_enable(bool on) and_l(~0x01000000, &GPIO1_OUT); else or_l(0x01000000, &GPIO1_OUT); -} + +#ifndef BOOTLOADER + /* Make sure the feed is reset */ + spdif_set_output_source(spdif_get_output_source(NULL), true); #endif +} + +bool spdif_powered(void) +{ + bool state = (GPIO1_READ & 0x01000000)?false:true; +#ifdef SPDIF_POWER_INVERTED + return !state; +#else + return state; +#endif /* SPDIF_POWER_INVERTED */ +} +#endif /* HAVE_SPDIF_POWER */ void ide_power_enable(bool on) { @@ -96,13 +112,11 @@ void ide_power_enable(bool on) or_l(0x80000000, &GPIO_OUT); } - bool ide_powered(void) { return (GPIO_OUT & 0x80000000)?false:true; } - void power_off(void) { set_irq_level(HIGHEST_IRQ_LEVEL); @@ -138,6 +152,11 @@ void spdif_power_enable(bool on) { (void)on; } + +bool spdif_powered(void) +{ + return false; +} #endif #endif /* SIMULATOR */ diff --git a/firmware/target/coldfire/iriver/h100/spdif-h100.c b/firmware/target/coldfire/iriver/h100/spdif-h100.c new file mode 100644 index 0000000000..20e5bc3c45 --- /dev/null +++ b/firmware/target/coldfire/iriver/h100/spdif-h100.c @@ -0,0 +1,83 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2006 by Michal Sevakis + * Based on the work of Thom Johansen + * + * All files in this archive are subject to the GNU General Public License. + * See the file COPYING in the source tree root for full license agreement. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#include <stdbool.h> +#include "config.h" +#include "cpu.h" +#include "power.h" +#include "system.h" +#include "audio.h" +#include "spdif.h" + +static int spdif_source = AUDIO_SRC_PLAYBACK; +static int spdif_on = false; + +/* Initialize the S/PDIF driver */ +void spdif_init(void) +{ + /* PHASECONFIG setup: gain = 3*2^13, source = EBUIN */ + PHASECONFIG = (6 << 3) | (4 << 0); + spdif_set_output_source(AUDIO_SRC_PLAYBACK, true); +} + +/* Return the S/PDIF frequency in herz - unrounded */ +unsigned long spdif_measure_frequency(void) +{ + /* The following formula is specified in MCF5249 user's manual section + * 17.6.1. The 128 divide is because of the fact that the SPDIF clock is + * the sample rate times 128. + */ + return (unsigned long)((unsigned long long)FREQMEAS*CPU_FREQ / + ((1 << 15)*3*(1 << 13))/128); +} /* spdif_measure_frequency */ + +/* Set the S/PDIF audio feed */ +void spdif_set_output_source(int source, bool src_on) +{ + static const unsigned short ebu1_config[] = + { + /* SCLK2, TXSRC = PDOR3, validity, normal operation */ + [AUDIO_SRC_PLAYBACK+1] = (7 << 12) | (3 << 8) | (1 << 5) | (5 << 2), + /* Input source is EBUin1, Feed-through monitoring */ + [AUDIO_SRC_SPDIF+1] = (1 << 2), + /* SCLK2, TXSRC = IIS1recv, validity, normal operation */ + [AUDIO_SRC_MIC+1] = (7 << 12) | (4 << 8) | (1 << 5) | (5 << 2), + [AUDIO_SRC_LINEIN+1] = (7 << 12) | (4 << 8) | (1 << 5) | (5 << 2), + [AUDIO_SRC_FMRADIO+1] = (7 << 12) | (4 << 8) | (1 << 5) | (5 << 2), + }; + + if ((unsigned)source >= ARRAYLEN(ebu1_config)) + source = AUDIO_SRC_PLAYBACK; + + EBU1CONFIG = 0x800; /* Reset before reprogram */ + + spdif_source = source; + spdif_on = spdif_powered() && src_on; + + /* Tranceiver must be powered or else monitoring will be disabled */ + EBU1CONFIG = spdif_on ? ebu1_config[source + 1] : 0; +} /* spdif_set_output_source */ + +/* Return the last set S/PDIF audio source */ +int spdif_get_output_source(bool *src_on) +{ + if (src_on != NULL) + *src_on = spdif_on; + return spdif_source; +} /* spdif_get_output_source */ |