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authorLinus Nielsen Feltzing <linus@haxx.se>2002-05-11 21:44:04 +0000
committerLinus Nielsen Feltzing <linus@haxx.se>2002-05-11 21:44:04 +0000
commite48a45a11ab05dae0cfc58edc0baddabd3170638 (patch)
tree1469c29ffbb208affcd8a36710b638afe8753a75 /firmware/kernel.c
parentbb69a59a971b65441589f2ac5f3d258148af1d3f (diff)
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The set_irq_level function was braindead
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@545 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/kernel.c')
-rw-r--r--firmware/kernel.c18
1 files changed, 5 insertions, 13 deletions
diff --git a/firmware/kernel.c b/firmware/kernel.c
index b0c28e5..8474126 100644
--- a/firmware/kernel.c
+++ b/firmware/kernel.c
@@ -53,21 +53,13 @@ void yield(void)
/****************************************************************************
* Interrupt level setting
****************************************************************************/
-static int current_irq_level = 15;
-
int set_irq_level(int level)
{
- int old;
-
- /* First raise to highest level and update the shadow */
- asm volatile ("ldc %0, sr" : : "r" (15<<4));
- old = current_irq_level;
- current_irq_level = level;
-
- /* Then set the wanted level */
- asm volatile ("ldc %0, sr" : : "r" ((unsigned int)level<<4));
-
- return ((unsigned int)old >> 4) & 0x0f;
+ int i;
+ /* Read the old level and set the new one */
+ asm volatile ("stc sr, %0" : "=r" (i));
+ asm volatile ("ldc %0, sr" : : "r" (level << 4));
+ return (i >> 4) & 0x0f;
}
/****************************************************************************
generated by cgit v1.1 at 2026-04-27 06:44:02 +0000
='#n180'>180 181 182 183 184 185 186 187 188 189 190 
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2009 Mohamed Tarek
 *
 * 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 <stdint.h>
#include <inttypes.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>

#include "../librm/rm.h"
#include "cook.h"

//#define DUMP_RAW_FRAMES

#define DATA_HEADER_SIZE 18 /* size of DATA chunk header in a rm file */
static unsigned char wav_header[44]={
    'R','I','F','F',//  0 - ChunkID
    0,0,0,0,        //  4 - ChunkSize (filesize-8)
    'W','A','V','E',//  8 - Format
    'f','m','t',' ',// 12 - SubChunkID
    16,0,0,0,       // 16 - SubChunk1ID  // 16 for PCM
    1,0,            // 20 - AudioFormat (1=Uncompressed)
    2,0,            // 22 - NumChannels
    0,0,0,0,        // 24 - SampleRate in Hz
    0,0,0,0,        // 28 - Byte Rate (SampleRate*NumChannels*(BitsPerSample/8)
    4,0,            // 32 - BlockAlign (== NumChannels * BitsPerSample/8)
    16,0,           // 34 - BitsPerSample
    'd','a','t','a',// 36 - Subchunk2ID
    0,0,0,0         // 40 - Subchunk2Size
};

int open_wav(char* filename) {
    int fd,res;

    fd=open(filename,O_CREAT|O_WRONLY|O_TRUNC,S_IRUSR|S_IWUSR);
    if (fd >= 0) {
        res = write(fd,wav_header,sizeof(wav_header));
    }

    return(fd);
}

void close_wav(int fd, RMContext *rmctx, COOKContext *q) {
    int x,res;
    int filesize;
    int bytes_per_sample = 2;
    int samples_per_frame = q->samples_per_frame;
    int nb_channels = rmctx->nb_channels;
    int sample_rate = rmctx->sample_rate;
    int nb_frames = rmctx->audio_framesize/rmctx->block_align * rmctx->nb_packets - 2; // first 2 frames have no valid audio; skipped in output

    filesize= samples_per_frame*bytes_per_sample*nb_frames +44;
    printf("Filesize = %d\n",filesize);

    // ChunkSize
    x=filesize-8;
    wav_header[4]=(x&0xff);
    wav_header[5]=(x&0xff00)>>8;
    wav_header[6]=(x&0xff0000)>>16;
    wav_header[7]=(x&0xff000000)>>24;

    // Number of channels
    wav_header[22]=nb_channels;

    // Samplerate
    wav_header[24]=sample_rate&0xff;
    wav_header[25]=(sample_rate&0xff00)>>8;
    wav_header[26]=(sample_rate&0xff0000)>>16;
    wav_header[27]=(sample_rate&0xff000000)>>24;

    // ByteRate
    x=sample_rate*bytes_per_sample*nb_channels;
    wav_header[28]=(x&0xff);
    wav_header[29]=(x&0xff00)>>8;
    wav_header[30]=(x&0xff0000)>>16;
    wav_header[31]=(x&0xff000000)>>24;

    // BlockAlign
    wav_header[32]=rmctx->block_align;//2*rmctx->nb_channels;

    // Bits per sample
    wav_header[34]=16;
    
    // Subchunk2Size
    x=filesize-44;
    wav_header[40]=(x&0xff);
    wav_header[41]=(x&0xff00)>>8;
    wav_header[42]=(x&0xff0000)>>16;
    wav_header[43]=(x&0xff000000)>>24;

    lseek(fd,0,SEEK_SET);
    res = write(fd,wav_header,sizeof(wav_header));
    close(fd);
}

int main(int argc, char *argv[])
{
    int fd, fd_dec;
    int res, datasize,i;
    int nb_frames = 0;
#ifdef DUMP_RAW_FRAMES 
    char filename[15];
    int fd_out;
#endif
    int32_t outbuf[2048];
    uint16_t fs,sps,h;
    uint32_t packet_count;
    COOKContext q;
    RMContext rmctx;