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-rw-r--r--firmware/SOURCES8
-rw-r--r--firmware/export/pcm_playback.h27
-rw-r--r--firmware/pcm_playback.c132
3 files changed, 167 insertions, 0 deletions
diff --git a/firmware/SOURCES b/firmware/SOURCES
index 94274b398e..870026f835 100644
--- a/firmware/SOURCES
+++ b/firmware/SOURCES
@@ -70,7 +70,11 @@ drivers/fmradio_i2c.c
tuner_philips.c
#endif
#endif
+#if CONFIG_I2C == I2C_H100
+drivers/i2c-h100.c
+#else
drivers/i2c.c
+#endif
#if CONFIG_HWCODEC != MASNONE
drivers/mas.c
#endif
@@ -107,3 +111,7 @@ bitswap.S
descramble.S
#endif
drivers/lcd.S
+#if defined(IRIVER_H100) && !defined(SIMULATOR)
+drivers/uda1380.c
+pcm_playback.c
+#endif
diff --git a/firmware/export/pcm_playback.h b/firmware/export/pcm_playback.h
new file mode 100644
index 0000000000..c44fb283ec
--- /dev/null
+++ b/firmware/export/pcm_playback.h
@@ -0,0 +1,27 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2005 by Linus Nielsen Feltzing
+ *
+ * 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.
+ *
+ ****************************************************************************/
+#ifndef PCM_PLAYBACK_H
+#define PCM_PLAYBACK_H
+
+void pcm_play_data(const unsigned char* start, int size,
+ void (*get_more)(unsigned char** start, long* size));
+void pcm_play_stop(void);
+bool pcm_is_playing(void);
+
+#endif
diff --git a/firmware/pcm_playback.c b/firmware/pcm_playback.c
new file mode 100644
index 0000000000..fba85f083b
--- /dev/null
+++ b/firmware/pcm_playback.c
@@ -0,0 +1,132 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2005 by Linus Nielsen Feltzing
+ *
+ * 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 "debug.h"
+#include "panic.h"
+#include <kernel.h>
+#include "pcm_playback.h"
+#ifndef SIMULATOR
+#include "cpu.h"
+#include "i2c.h"
+#include "uda1380.h"
+#include "system.h"
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include "lcd.h"
+#include "button.h"
+#include "file.h"
+#include "buffer.h"
+
+bool pcm_playing;
+
+/* Set up the DMA transfer that kicks in when the audio FIFO gets empty */
+static void dma_start(const void *addr, long size)
+{
+ pcm_playing = 1;
+
+ BUSMASTER_CTRL = 0x81; /* PARK[1,0]=10 + BCR24BIT */
+
+ /* Set up DMA transfer */
+ DIVR0 = 54; /* DMA0 is mapped into vector 54 in system.c */
+ SAR0 = (unsigned long)addr; /* Source address */
+ DAR0 = (unsigned long)&PDOR3; /* Destination address */
+ BCR0 = size; /* Bytes to transfer */
+ DMAROUTE = (DMAROUTE & 0xffffff00) | DMA0_REQ_AUDIO_1;
+ DMACONFIG = 1; /* Enable DMA0Req => set DMAROUTE |= DMA0_REQ_AUDIO_1 */
+
+ /* Start transfer when requested */
+ DCR0 = DMA_INT | DMA_EEXT | DMA_CS | DMA_SINC;
+
+ /* Enable interrupt at level 7, priority 0 */
+ ICR4 = (ICR4 & 0xffff00ff) | 0x00001c00;
+ IMR &= ~(1<<14); /* bit 14 is DMA0 */
+
+ IIS2CONFIG = 0x4300; /* CLOCKSEL = AudioClk/8 (44.1kHz),
+ data source = PDOR3 */
+
+ PDOR3 = 0; /* These are needed to generate FIFO empty request to DMA.. */
+ PDOR3 = 0;
+ PDOR3 = 0;
+ PDOR3 = 0;
+ PDOR3 = 0;
+}
+
+/* Stops the DMA transfer and interrupt */
+static void dma_stop(void)
+{
+ pcm_playing = 0;
+ DCR0 = 0;
+
+ /* Disable DMA0 interrupt */
+ IMR |= (1<<14);
+ ICR4 &= 0xffff00ff;
+}
+
+/* the registered callback function to ask for more mp3 data */
+static void (*callback_for_more)(unsigned char**, long*) = NULL;
+
+void pcm_play_data(const unsigned char* start, int size,
+ void (*get_more)(unsigned char** start, long* size))
+{
+ callback_for_more = get_more;
+
+ dma_start(start, size);
+}
+
+void pcm_play_stop(void)
+{
+ dma_stop();
+}
+
+bool pcm_is_playing(void)
+{
+ return pcm_playing;
+}
+
+/* DMA0 Interrupt is called when the DMA has finished transfering a chunk */
+void DMA0(void) __attribute__ ((interrupt_handler, section(".icode")));
+void DMA0(void)
+{
+ unsigned char* start;
+ long size = 0;
+
+ DSR0 = 1; /* Clear interrupt */
+
+ if (callback_for_more)
+ {
+ callback_for_more(&start, &size);
+ }
+
+ if(size)
+ {
+ SAR0 = (unsigned long)start; /* Source address */
+ BCR0 = size; /* Bytes to transfer */
+ }
+ else
+ {
+ /* Finished playing */
+ dma_stop();
+ }
+
+ IPR |= (1<<14); /* Clear pending interrupt request */
+}