Iriver: First attempt at recording. Use Info->Debug->PCM recording to test recording of wav-files. Seams to work fine except occasional 100 ms noise at pos 100 ms (not later) so initialization or synch problem..
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6763 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andy
parent
2c0a58c238
commit
e5d08722f8
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@ -51,4 +51,7 @@ recorder/recording.c
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#ifdef IRIVER_H100
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playback.c
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metadata.c
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#ifndef SIMULATOR
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pcm_recording.c
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#endif
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#endif
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@ -58,6 +58,9 @@
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#include "ata_mmc.h"
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#endif
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#include "logfdisp.h"
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#if defined(IRIVER_H100) && !defined(SIMULATOR)
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extern bool pcm_rec_screen(void);
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#endif
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/*---------------------------------------------------*/
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/* SPECIAL DEBUG STUFF */
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@ -1800,6 +1803,9 @@ bool debug_menu(void)
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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{ "CPU frequency", dbg_cpufreq },
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#endif
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#if defined(IRIVER_H100) && !defined(SIMULATOR)
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{ "PCM recording", pcm_rec_screen },
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#endif
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#if CONFIG_CPU == SH7034
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#ifdef HAVE_LCD_BITMAP
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#ifdef HAVE_RTC
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@ -63,6 +63,9 @@
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#if (CONFIG_HWCODEC == MASNONE)
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#include "pcm_playback.h"
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#endif
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#if defined(IRIVER_H100) && !defined(SIMULATOR)
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#include "pcm_record.h"
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#endif
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#ifdef CONFIG_TUNER
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#include "radio.h"
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@ -293,6 +296,9 @@ void init(void)
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#if (CONFIG_HWCODEC == MASNONE)
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pcm_init();
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#endif
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#if defined(IRIVER_H100) && !defined(SIMULATOR)
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pcm_init_recording();
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#endif
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#ifdef HAVE_CHARGING
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car_adapter_mode_init();
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#endif
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226
apps/pcm_recording.c
Normal file
226
apps/pcm_recording.c
Normal file
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@ -0,0 +1,226 @@
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Linus Nielsen Feltzing
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include "system.h"
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#include "lcd.h"
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#include "led.h"
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#include "audio.h"
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#include "button.h"
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#include "kernel.h"
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#include "settings.h"
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#include "lang.h"
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#include "font.h"
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#include "icons.h"
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#include "screens.h"
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#include "status.h"
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#include "menu.h"
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#include "sound_menu.h"
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#include "timefuncs.h"
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#include "debug.h"
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#include "misc.h"
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#include "tree.h"
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#include "string.h"
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#include "dir.h"
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#include "errno.h"
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#include "atoi.h"
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#include "sound.h"
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#include "ata.h"
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#include "logf.h"
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#include "uda1380.h"
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#include "pcm_record.h"
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bool pcm_rec_screen(void)
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{
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char buf[80];
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char filename[MAX_PATH];
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char *rec_sources[2] = {"Line-in","Mic"};
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int line=0;
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int play_vol;
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int rec_monitor, rec_gain, rec_vol, rec_source, rec_count, rec_waveform;
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int rec_time;
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int done, button;
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int w, h;
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lcd_setfont(FONT_SYSFIXED);
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lcd_getstringsize("M", &w, &h);
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lcd_setmargins(global_settings.invert_cursor ? 0 : w, 8);
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play_vol = 120;
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//cpu_boost(true);
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uda1380_enable_output(true);
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uda1380_setvol(play_vol, play_vol);
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rec_monitor = 0; // No record feedback
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rec_source = 1; // Mic
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rec_gain = 0; // 0-15
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rec_vol = 0; // 0-255
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rec_count = 0;
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rec_waveform = 0;
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pcm_open_recording();
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pcm_set_recording_options(rec_source, rec_waveform);
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pcm_set_recording_gain(rec_gain, rec_vol);
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//rec_create_directory();
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done = 0;
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while(!done)
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{
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line = 0;
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snprintf(buf, sizeof(buf), "PlayVolume: %3d", play_vol);
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lcd_puts(0,line++, buf);
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snprintf(buf, sizeof(buf), "Gain : %2d Volume : %2d", rec_gain, rec_vol);
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lcd_puts(0,line++, buf);
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snprintf(buf, sizeof(buf), "Monitor: %2d Waveform: %2d", rec_monitor, rec_waveform);
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lcd_puts(0,line++, buf);
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line++;
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rec_time = pcm_recorded_time();
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snprintf(buf, sizeof(buf), "Status: %s", pcm_status() & AUDIO_STATUS_RECORD ? "RUNNING" : "STOPPED");
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lcd_puts(0,line++, buf);
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snprintf(buf, sizeof(buf), "Source: %s", rec_sources[rec_source]);
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lcd_puts(0,line++, buf);
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snprintf(buf, sizeof(buf), "File : %s", filename);
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lcd_puts(0,line++, buf);
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snprintf(buf, sizeof(buf), "Time : %02d:%02d.%02d", rec_time/HZ/60, (rec_time/HZ)%60, rec_time%HZ);
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lcd_puts(0,line++, buf);
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line++;
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snprintf(buf, sizeof(buf), "MODE : Select source");
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lcd_puts(0,line++, buf);
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snprintf(buf, sizeof(buf), "UP/DOWN : Record volume");
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lcd_puts(0,line++, buf);
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snprintf(buf, sizeof(buf), "LFT/RGHT: Record gain");
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lcd_puts(0,line++, buf);
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snprintf(buf, sizeof(buf), "RMT MENU: Toggle monitor");
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lcd_puts(0,line++, buf);
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snprintf(buf, sizeof(buf), "RMT PLAY: Toggle waveform");
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lcd_puts(0,line++, buf);
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lcd_update();
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button = button_get_w_tmo(HZ/8);
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switch (button)
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{
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case BUTTON_OFF:
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done = true;
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break;
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case BUTTON_REC:
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if (pcm_status() & AUDIO_STATUS_RECORD)
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{
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pcm_stop_recording();
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} else
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{
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snprintf(filename, MAX_PATH, "/record-%0d.wav", rec_count++);
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pcm_record(filename);
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}
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break;
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case BUTTON_ON:
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break;
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case BUTTON_MODE:
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rec_source = 1 - rec_source;
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pcm_set_recording_options(rec_source, rec_waveform);
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break;
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case BUTTON_RIGHT:
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case BUTTON_RIGHT | BUTTON_REPEAT:
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if (rec_gain < 15)
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rec_gain++;
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pcm_set_recording_gain(rec_gain, rec_vol);
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break;
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case BUTTON_LEFT:
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case BUTTON_LEFT | BUTTON_REPEAT:
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if (rec_gain > 0)
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rec_gain--;
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pcm_set_recording_gain(rec_gain, rec_vol);
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break;
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case BUTTON_RC_MENU:
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rec_monitor = 1 - rec_monitor;
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uda1380_set_monitor(rec_monitor);
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break;
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case BUTTON_RC_ON:
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rec_waveform = 1 - rec_waveform;
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pcm_set_recording_options(rec_source, rec_waveform);
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break;
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case BUTTON_UP:
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case BUTTON_UP | BUTTON_REPEAT:
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if (rec_vol<255)
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rec_vol++;
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pcm_set_recording_gain(rec_gain, rec_vol);
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break;
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case BUTTON_DOWN:
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case BUTTON_DOWN | BUTTON_REPEAT:
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if (rec_vol)
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rec_vol--;
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pcm_set_recording_gain(rec_gain, rec_vol);
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break;
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case SYS_USB_CONNECTED:
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if (pcm_status() & AUDIO_STATUS_RECORD)
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{
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// ignore usb while recording
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} else
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{
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pcm_stop_recording();
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uda1380_enable_output(false);
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default_event_handler(SYS_USB_CONNECTED);
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return false;
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}
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break;
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}
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}
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pcm_stop_recording();
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pcm_close_recording();
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uda1380_enable_output(false);
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return true;
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}
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@ -126,4 +126,7 @@ drivers/uda1380.c
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#if (CONFIG_HWCODEC == MASNONE) && !defined(SIMULATOR)
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pcm_playback.c
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#endif
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#if defined(IRIVER_H100) && !defined(SIMULATOR)
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pcm_record.c
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#endif
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sound.c
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@ -200,7 +200,7 @@ void uda1380_close(void)
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*/
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void uda1380_enable_recording(bool source_mic)
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{
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uda1380_write_reg(REG_0, uda1380_regs[REG_0] | EN_ADC);
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uda1380_write_reg(REG_0, uda1380_regs[REG_0] | EN_ADC);
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if (source_mic)
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{
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@ -214,6 +214,8 @@ void uda1380_enable_recording(bool source_mic)
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uda1380_write_reg(REG_PGA, (uda1380_regs[REG_PGA] & PGA_GAIN_MASK) | PGA_GAINL(0) | PGA_GAINR(0)); /* PGA_GAIN: 0=0 dB, F=24dB */
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}
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sleep(HZ/8);
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uda1380_write_reg(REG_I2S, uda1380_regs[REG_I2S] | I2S_MODE_MASTER);
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uda1380_write_reg(REG_MIX_CTL, MIX_MODE(3)); /* Not sure which mode is the best one.. */
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@ -159,7 +159,7 @@
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#define PDOR1_R (*(volatile unsigned long *)(MBAR2 + 0x044))
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#define PDOR2_L (*(volatile unsigned long *)(MBAR2 + 0x054))
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#define PDOR2_R (*(volatile unsigned long *)(MBAR2 + 0x064))
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#define PDIR3 (*(volatile unsigned long *)(MBAR2 + 0x074))
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#define PDIR2 (*(volatile unsigned long *)(MBAR2 + 0x074))
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#define PDOR3 (*(volatile unsigned long *)(MBAR2 + 0x074))
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#define UCHANNELTRANSMIT (*(volatile unsigned long *)(MBAR2 + 0x084))
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#define U1CHANNELRECEIVE (*(volatile unsigned long *)(MBAR2 + 0x088))
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@ -262,5 +262,8 @@
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/* DMAROUTE config */
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#define DMA0_REQ_AUDIO_1 0x80
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#define DMA0_REQ_AUDIO_2 0x81
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#define DMA1_REQ_AUDIO_1 0x8000
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#define DMA1_REQ_AUDIO_2 0x8100
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#endif
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51
firmware/export/pcm_record.h
Normal file
51
firmware/export/pcm_record.h
Normal file
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@ -0,0 +1,51 @@
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2005 by Linus Nielsen Feltzing
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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/*
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* Function names are taken from apps/recorder/recording.c to
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* make the integration later easier..
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*
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*/
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#ifndef PCM_RECORD_H
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#define PCM_RECORD_H
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unsigned long pcm_status(void);
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void pcm_init_recording(void);
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void pcm_open_recording(void);
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void pcm_close_recording(void);
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void pcm_set_recording_options(int source, bool enable_waveform);
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void pcm_set_recording_gain(int gain, int volume);
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void pcm_record(const char *filename);
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void pcm_stop_recording(void);
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//void pcm_new_file(const char *filename);
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unsigned long pcm_recorded_time(void);
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unsigned long pcm_num_recorded_bytes(void);
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void pcm_pause_recording(void);
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void pcm_resume_recording(void);
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#endif
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650
firmware/pcm_record.c
Normal file
650
firmware/pcm_record.c
Normal file
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@ -0,0 +1,650 @@
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
|
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* Copyright (C) 2005 by Linus Nielsen Feltzing
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*
|
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* 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.
|
||||
*
|
||||
****************************************************************************/
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#include "config.h"
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#include "debug.h"
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#include "panic.h"
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#include "thread.h"
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#include <kernel.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdarg.h>
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#include <string.h>
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#include "cpu.h"
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#include "i2c.h"
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#include "uda1380.h"
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#include "system.h"
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#include "usb.h"
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#include "buffer.h"
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#include "audio.h"
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#include "button.h"
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#include "file.h"
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#include "sprintf.h"
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#include "logf.h"
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#include "button.h"
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#include "lcd.h"
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#include "lcd-remote.h"
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#include "pcm_playback.h"
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#include "pcm_record.h"
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/***************************************************************************/
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static volatile bool is_recording; /* We are recording */
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static volatile bool is_stopping; /* Are we going to stop */
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static volatile bool is_paused; /* We have paused */
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static volatile int num_rec_bytes;
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static volatile int int_count; /* Number of DMA completed interrupts */
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static volatile int error_count; /* Number of DMA errors */
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static unsigned long record_start_time; /* Value of current_tick when recording was started */
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static unsigned long pause_start_time; /* Value of current_tick when pause was started */
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||||
static int rec_gain, rec_volume;
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static bool show_waveform;
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static int init_done = 0;
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static int wav_file;
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static char recording_filename[MAX_PATH];
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/***************************************************************************/
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/*
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Some estimates:
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44100 HZ * 4 = 176400 bytes/s
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Refresh LCD 10 HZ = 176400 / 10 = 17640 bytes ~=~ 1024*16 bytes
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If NUM_BUFFERS is 80 we can hold ~8 sec of data in memory
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ALL_BUFFER_SIZE will be 1024*16 * 80 = 1310720 bytes
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*/
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||||
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#define NUM_BUFFERS 80
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#define EACH_BUFFER_SIZE (1024*16) /* Multiple of 4. Use small value to get responsive waveform */
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||||
#define ALL_BUFFERS_SIZE (NUM_BUFFERS * EACH_BUFFER_SIZE)
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||||
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||||
#define WRITE_THRESHOLD 40 /* Minimum number of buffers before write to file */
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||||
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||||
static unsigned char *rec_buffers[NUM_BUFFERS];
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||||
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||||
/*
|
||||
Overrun occures when DMA needs to write a new buffer and write_index == read_index
|
||||
Solution to this is to optimize pcmrec_callback, use cpu_boost somewhere or increase
|
||||
the total buffer size (or WRITE_THRESHOLD)
|
||||
*/
|
||||
|
||||
static int write_index; /* Which buffer the DMA is currently recording */
|
||||
static int read_index; /* The oldest buffer that the pcmrec_callback has not read */
|
||||
|
||||
/***************************************************************************/
|
||||
|
||||
static struct event_queue pcmrec_queue;
|
||||
static long pcmrec_stack[(DEFAULT_STACK_SIZE + 0x1000)/sizeof(long)];
|
||||
static const char pcmrec_thread_name[] = "pcmrec";
|
||||
|
||||
static void pcmrec_thread(void);
|
||||
|
||||
/* Event IDs */
|
||||
#define PCMREC_OPEN 1 /* Enable recording */
|
||||
#define PCMREC_CLOSE 2 /* Disable recording */
|
||||
#define PCMREC_START 3 /* Start a new recording */
|
||||
#define PCMREC_STOP 4 /* Stop the current recording */
|
||||
#define PCMREC_PAUSE 10
|
||||
#define PCMREC_RESUME 11
|
||||
#define PCMREC_NEW_FILE 12
|
||||
#define PCMREC_SET_GAIN 13
|
||||
#define PCMREC_GOT_DATA 20 /* DMA1 notifies when data has arrived */
|
||||
|
||||
|
||||
/*******************************************************************/
|
||||
/* Functions that are not executing in the pcmrec_thread first */
|
||||
/*******************************************************************/
|
||||
|
||||
void pcm_init_recording(void)
|
||||
{
|
||||
int_count = 0;
|
||||
error_count = 0;
|
||||
|
||||
show_waveform = 0;
|
||||
is_recording = 0;
|
||||
is_stopping = 0;
|
||||
num_rec_bytes = 0;
|
||||
wav_file = -1;
|
||||
read_index = 0;
|
||||
write_index = 0;
|
||||
|
||||
queue_init(&pcmrec_queue);
|
||||
create_thread(pcmrec_thread, pcmrec_stack, sizeof(pcmrec_stack), pcmrec_thread_name);
|
||||
}
|
||||
|
||||
void pcm_open_recording(void)
|
||||
{
|
||||
init_done = 0;
|
||||
|
||||
logf("pcm_open_rec");
|
||||
|
||||
queue_post(&pcmrec_queue, PCMREC_OPEN, 0);
|
||||
|
||||
while (init_done)
|
||||
{
|
||||
sleep(HZ >> 8);
|
||||
}
|
||||
|
||||
logf("pcm_open_rec done");
|
||||
}
|
||||
|
||||
void pcm_close_recording(void)
|
||||
{
|
||||
/* todo: synchronize completion with pcmrec thread */
|
||||
queue_post(&pcmrec_queue, PCMREC_CLOSE, 0);
|
||||
}
|
||||
|
||||
|
||||
|
||||
unsigned long pcm_status(void)
|
||||
{
|
||||
unsigned long ret = 0;
|
||||
|
||||
if (is_recording)
|
||||
ret |= AUDIO_STATUS_RECORD;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
|
||||
void pcm_new_file(const char *filename)
|
||||
{
|
||||
/* todo */
|
||||
filename = filename;
|
||||
|
||||
}
|
||||
|
||||
unsigned long pcm_recorded_time(void)
|
||||
{
|
||||
if (is_recording)
|
||||
{
|
||||
if(is_paused)
|
||||
return pause_start_time - record_start_time;
|
||||
else
|
||||
return current_tick - record_start_time;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
unsigned long pcm_num_recorded_bytes(void)
|
||||
{
|
||||
|
||||
if (is_recording)
|
||||
{
|
||||
return num_rec_bytes;
|
||||
}
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
void pcm_pause_recording(void)
|
||||
{
|
||||
/* todo */
|
||||
}
|
||||
|
||||
void pcm_resume_recording(void)
|
||||
{
|
||||
/* todo */
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Sets the audio source
|
||||
*
|
||||
* Side effect: This functions starts feeding the CPU with audio data over the I2S bus
|
||||
*
|
||||
* @param source 0=line-in, 1=mic
|
||||
*/
|
||||
void pcm_set_recording_options(int source, bool enable_waveform)
|
||||
{
|
||||
uda1380_enable_recording(source);
|
||||
|
||||
show_waveform = enable_waveform;
|
||||
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
*
|
||||
* @param gain line-in and microphone gain (0-15)
|
||||
* @param volume ADC volume (0-255)
|
||||
*/
|
||||
void pcm_set_recording_gain(int gain, int volume)
|
||||
{
|
||||
rec_gain = gain;
|
||||
rec_volume = volume;
|
||||
|
||||
queue_post(&pcmrec_queue, PCMREC_SET_GAIN, 0);
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Start recording
|
||||
*
|
||||
* Use pcm_set_recording_options before calling record
|
||||
*/
|
||||
void pcm_record(const char *filename)
|
||||
{
|
||||
strncpy(recording_filename, filename, MAX_PATH - 1);
|
||||
recording_filename[MAX_PATH - 1] = 0;
|
||||
|
||||
queue_post(&pcmrec_queue, PCMREC_START, 0);
|
||||
}
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
void pcm_stop_recording(void)
|
||||
{
|
||||
if (is_recording)
|
||||
is_stopping = 1;
|
||||
|
||||
queue_post(&pcmrec_queue, PCMREC_STOP, 0);
|
||||
|
||||
logf("pcm_stop_recording");
|
||||
|
||||
while (is_stopping)
|
||||
{
|
||||
sleep(HZ >> 4);
|
||||
}
|
||||
|
||||
logf("pcm_stop_recording done");
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
/***************************************************************************/
|
||||
/* Functions that executes in the context of pcmrec_thread */
|
||||
/***************************************************************************/
|
||||
|
||||
|
||||
/**
|
||||
* Process the buffers using read_index and write_index.
|
||||
*
|
||||
* DMA1 handler posts to pcmrec_queue so that pcmrec_thread calls this
|
||||
* function. Also pcmrec_stop will call this function when the recording
|
||||
* is stopping, and that call will have flush = true.
|
||||
*
|
||||
*/
|
||||
|
||||
void pcmrec_callback(bool flush) __attribute__ ((section (".icode")));
|
||||
void pcmrec_callback(bool flush)
|
||||
{
|
||||
int num_ready;
|
||||
|
||||
num_ready = write_index - read_index;
|
||||
if (num_ready < 0)
|
||||
num_ready += NUM_BUFFERS;
|
||||
|
||||
/* we can consume up to num_ready buffers */
|
||||
|
||||
#ifdef HAVE_REMOTE_LCD
|
||||
/* Draw waveform on remote LCD */
|
||||
if (show_waveform && num_ready>0)
|
||||
{
|
||||
short *buf;
|
||||
long x,y,offset;
|
||||
int show_index;
|
||||
|
||||
/* Just display the last buffer (most recent one) */
|
||||
show_index = read_index + num_ready - 1;
|
||||
buf = (short*)rec_buffers[show_index];
|
||||
|
||||
lcd_remote_clear_display();
|
||||
|
||||
offset = 0;
|
||||
for (x=0; x<LCD_REMOTE_WIDTH-1; x++)
|
||||
{
|
||||
y = buf[offset] * (LCD_REMOTE_HEIGHT / 2) *5; /* The 5 is just 'zooming' */
|
||||
y = y >> 15; /* Divide with SHRT_MAX */
|
||||
y += LCD_REMOTE_HEIGHT/2;
|
||||
|
||||
if (y < 2) y=2;
|
||||
if (y >= LCD_REMOTE_HEIGHT-2) y = LCD_REMOTE_HEIGHT-2;
|
||||
|
||||
REMOTE_DRAW_PIXEL(x,y);
|
||||
|
||||
offset += (EACH_BUFFER_SIZE/2) / LCD_REMOTE_WIDTH;
|
||||
}
|
||||
|
||||
lcd_remote_update();
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/* Note: This might be a good place to call the 'codec' later */
|
||||
|
||||
/* Check that we have the minimum amount of data to save or */
|
||||
/* that if it's closing time which mean we have to save.. */
|
||||
if (wav_file != -1)
|
||||
{
|
||||
if (num_ready >= WRITE_THRESHOLD || flush)
|
||||
{
|
||||
unsigned long *ptr = (unsigned long*)rec_buffers[read_index];
|
||||
int i;
|
||||
|
||||
for (i=0; i<EACH_BUFFER_SIZE * num_ready / 4; i++)
|
||||
{
|
||||
*ptr = SWAB32(*ptr);
|
||||
ptr++;
|
||||
}
|
||||
|
||||
write(wav_file, rec_buffers[read_index], EACH_BUFFER_SIZE * num_ready);
|
||||
|
||||
read_index+=num_ready;
|
||||
if (read_index >= NUM_BUFFERS)
|
||||
read_index -= NUM_BUFFERS;
|
||||
}
|
||||
|
||||
} else
|
||||
{
|
||||
/* In this case we must consume the buffers otherwise we will */
|
||||
/* get 'dma1 overrun' pretty fast */
|
||||
|
||||
read_index+=num_ready;
|
||||
if (read_index >= NUM_BUFFERS)
|
||||
read_index -= NUM_BUFFERS;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
void pcmrec_dma_start(void)
|
||||
{
|
||||
DAR1 = (unsigned long)rec_buffers[write_index++]; /* Destination address */
|
||||
SAR1 = (unsigned long)&PDIR2; /* Source address */
|
||||
BCR1 = EACH_BUFFER_SIZE; /* Bytes to transfer */
|
||||
|
||||
/* Start the DMA transfer.. */
|
||||
DCR1 = DMA_INT | DMA_EEXT | DMA_CS | DMA_DINC | DMA_START;
|
||||
|
||||
logf("dma1 started");
|
||||
}
|
||||
|
||||
|
||||
/* DMA1 Interrupt is called when the DMA has finished transfering a chunk */
|
||||
void DMA1(void) __attribute__ ((interrupt_handler, section(".icode")));
|
||||
void DMA1(void)
|
||||
{
|
||||
int res = DSR1;
|
||||
|
||||
DSR1 = 1; /* Clear interrupt */
|
||||
|
||||
int_count++;
|
||||
|
||||
if (res & 0x70)
|
||||
{
|
||||
DCR1 = 0; /* Stop DMA transfer */
|
||||
error_count++;
|
||||
is_recording = 0;
|
||||
|
||||
logf("dma1 err 0x%x", res);
|
||||
|
||||
} else
|
||||
{
|
||||
num_rec_bytes += EACH_BUFFER_SIZE;
|
||||
|
||||
write_index++;
|
||||
if (write_index >= NUM_BUFFERS)
|
||||
write_index = 0;
|
||||
|
||||
if (is_stopping || !is_recording)
|
||||
{
|
||||
DCR1 = 0; /* Stop DMA transfer */
|
||||
is_recording = 0;
|
||||
|
||||
logf("dma1 stopping");
|
||||
|
||||
} else if (write_index == read_index)
|
||||
{
|
||||
DCR1 = 0; /* Stop DMA transfer */
|
||||
is_recording = 0;
|
||||
|
||||
logf("dma1 overrun");
|
||||
|
||||
} else
|
||||
{
|
||||
DAR1 = (unsigned long)rec_buffers[write_index]; /* Destination address */
|
||||
BCR1 = EACH_BUFFER_SIZE;
|
||||
|
||||
queue_post(&pcmrec_queue, PCMREC_GOT_DATA, NULL);
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
IPR |= (1<<15); /* Clear pending interrupt request */
|
||||
}
|
||||
|
||||
static int start_wave(void)
|
||||
{
|
||||
unsigned char header[44] =
|
||||
{
|
||||
'R','I','F','F',0,0,0,0,'W','A','V','E','f','m','t',' ',
|
||||
0x10,0,0,0,1,0,2,0,0x44,0xac,0,0,0x10,0xb1,2,0,
|
||||
4,0,0x10,0,'d','a','t','a',0,0,0,0
|
||||
};
|
||||
|
||||
wav_file = open(recording_filename, O_RDWR|O_CREAT|O_TRUNC);
|
||||
if (wav_file < 0)
|
||||
{
|
||||
wav_file = -1;
|
||||
logf("create failed: %d", wav_file);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (sizeof(header) != write(wav_file, header, sizeof(header)))
|
||||
{
|
||||
close(wav_file);
|
||||
wav_file = -1;
|
||||
logf("write failed");
|
||||
return -2;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Update header and set correct length values */
|
||||
static void close_wave(void)
|
||||
{
|
||||
long l;
|
||||
|
||||
l = SWAB32(num_rec_bytes + 36);
|
||||
lseek(wav_file, 4, SEEK_SET);
|
||||
write(wav_file, &l, 4);
|
||||
|
||||
l = SWAB32(num_rec_bytes);
|
||||
lseek(wav_file, 40, SEEK_SET);
|
||||
write(wav_file, &l, 4);
|
||||
|
||||
close(wav_file);
|
||||
wav_file = -1;
|
||||
}
|
||||
|
||||
static void pcmrec_start(void)
|
||||
{
|
||||
logf("pcmrec_start");
|
||||
|
||||
if (is_recording)
|
||||
return;
|
||||
|
||||
if (wav_file != -1)
|
||||
close(wav_file);
|
||||
|
||||
logf("rec: %s", recording_filename);
|
||||
|
||||
start_wave(); /* todo: send signal to pcm_record if we have failed */
|
||||
|
||||
num_rec_bytes = 0;
|
||||
|
||||
/* Store the current time */
|
||||
record_start_time = current_tick;
|
||||
|
||||
write_index = 0;
|
||||
read_index = 0;
|
||||
|
||||
is_stopping = 0;
|
||||
is_paused = 0;
|
||||
is_recording = 1;
|
||||
|
||||
pcmrec_dma_start();
|
||||
|
||||
}
|
||||
|
||||
static void pcmrec_stop(void)
|
||||
{
|
||||
/* wait for recording to finish */
|
||||
|
||||
/* todo: Abort current DMA transfer using DCR1.. */
|
||||
|
||||
logf("pcmrec_stop");
|
||||
|
||||
while (is_recording)
|
||||
{
|
||||
sleep(HZ >> 4);
|
||||
}
|
||||
|
||||
logf("pcmrec_stop done");
|
||||
|
||||
/* Write unfinished buffers to file */
|
||||
pcmrec_callback(true);
|
||||
|
||||
close_wave();
|
||||
|
||||
is_stopping = 0;
|
||||
}
|
||||
|
||||
static void pcmrec_open(void)
|
||||
{
|
||||
unsigned long buffer_start;
|
||||
int i;
|
||||
|
||||
show_waveform = 0;
|
||||
is_recording = 0;
|
||||
is_stopping = 0;
|
||||
num_rec_bytes = 0;
|
||||
wav_file = -1;
|
||||
read_index = 0;
|
||||
write_index = 0;
|
||||
|
||||
buffer_start = (unsigned long)(&audiobuf[(audiobufend - audiobuf) - (ALL_BUFFERS_SIZE + 16)]);
|
||||
buffer_start &= ~3;
|
||||
|
||||
for (i=0; i<NUM_BUFFERS; i++)
|
||||
{
|
||||
rec_buffers[i] = (unsigned char*)(buffer_start + EACH_BUFFER_SIZE * i);
|
||||
}
|
||||
|
||||
IIS1CONFIG = 0x800; /* Stop any playback */
|
||||
AUDIOGLOB |= 0x180; /* IIS1 fifo auto sync = on, PDIR2 auto sync = on */
|
||||
DATAINCONTROL = 0xc000; /* Generate Interrupt when 6 samples in fifo */
|
||||
DATAINCONTROL |= 0x20; /* PDIR2 source = IIS1recv */
|
||||
|
||||
DIVR1 = 55; /* DMA1 is mapped into vector 55 in system.c */
|
||||
DMACONFIG = 1; /* DMA0Req = PDOR3, DMA1Req = PDIR2 */
|
||||
DMAROUTE = (DMAROUTE & 0xffff00ff) | DMA1_REQ_AUDIO_2;
|
||||
ICR4 = (ICR4 & 0xffffff00) | 0x0000001c; /* Enable interrupt at level 7, priority 0 */
|
||||
IMR &= ~(1<<15); /* bit 15 is DMA1 */
|
||||
|
||||
init_done = 1;
|
||||
}
|
||||
|
||||
static void pcmrec_close(void)
|
||||
{
|
||||
uda1380_disable_recording();
|
||||
|
||||
DMAROUTE = (DMAROUTE & 0xffff00ff);
|
||||
ICR4 = (ICR4 & 0xffffff00); /* Disable interrupt */
|
||||
IMR |= (1<<15); /* bit 15 is DMA1 */
|
||||
|
||||
}
|
||||
|
||||
static void pcmrec_thread(void)
|
||||
{
|
||||
struct event ev;
|
||||
|
||||
logf("thread pcmrec start");
|
||||
|
||||
while (1)
|
||||
{
|
||||
queue_wait(&pcmrec_queue, &ev);
|
||||
|
||||
switch (ev.id)
|
||||
{
|
||||
case PCMREC_OPEN:
|
||||
pcmrec_open();
|
||||
break;
|
||||
|
||||
case PCMREC_CLOSE:
|
||||
pcmrec_close();
|
||||
break;
|
||||
|
||||
case PCMREC_START:
|
||||
pcmrec_start();
|
||||
break;
|
||||
|
||||
case PCMREC_STOP:
|
||||
pcmrec_stop();
|
||||
break;
|
||||
|
||||
case PCMREC_PAUSE:
|
||||
/* todo */
|
||||
break;
|
||||
|
||||
case PCMREC_RESUME:
|
||||
/* todo */
|
||||
break;
|
||||
|
||||
case PCMREC_NEW_FILE:
|
||||
/* todo */
|
||||
break;
|
||||
|
||||
case PCMREC_SET_GAIN:
|
||||
uda1380_set_recvol(rec_gain, rec_gain, rec_volume);
|
||||
break;
|
||||
|
||||
case PCMREC_GOT_DATA:
|
||||
pcmrec_callback(false);
|
||||
break;
|
||||
|
||||
case SYS_USB_CONNECTED:
|
||||
if (!is_recording && !is_stopping)
|
||||
{
|
||||
usb_acknowledge(SYS_USB_CONNECTED_ACK);
|
||||
usb_wait_for_disconnect(&pcmrec_queue);
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
logf("thread pcmrec done");
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user