ahx_rpc.c

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/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# Copyright 2001-2004, ps2dev - http://www.ps2dev.org
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/
 
#include <tamtypes.h>
#include <kernel.h>
#include <sifrpc.h>
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include "ahx_rpc.h"
 
static unsigned sbuff[64] __attribute__((aligned (64)));
static struct t_SifRpcClientData cd0;
#define IOP_MEM 0xbc000000
char* songbuffer_addr;
int ahx_init_done = 0;
 
void iop_readwrite(void *addr, void *buf, u32 size, u32 read)
{
    DI();
    ee_kmode_enter();
    if (read) memcpy(buf, (void *)((u8 *)addr + IOP_MEM), size); else memcpy((void *)((u8 *)addr + IOP_MEM), buf, size);
    ee_kmode_exit();
    EI();
}
 
int AHX_Init()
{
    // struct t_SifDmaTransfer sdt;
 
    // if already init'd, exit
    if (ahx_init_done) return 0;
 
    // bind rpc
    while(1){
        int i;
 
        if (SifBindRpc( &cd0, AHX_IRX, 0) < 0) return -1; // bind error
        if (cd0.server != 0) break;
        i = 0x10000;
        while(i--);
    }
 
    SifCallRpc(&cd0,AHX_INIT,0,(void*)(&sbuff[0]),64,(void*)(&sbuff[0]),64,NULL,NULL);
 
    songbuffer_addr = (char*)sbuff[1];
 
    // set flag, init done
    ahx_init_done = 1;
    return 0;
}
 
int AHX_Play()
{
    while(1){
        int i;
 
        if (SifBindRpc( &cd0, AHX_IRX, 0) < 0) return -1;
        if (cd0.server != 0) break;
        i = 0x10000;
        while(i--);
    }
    SifCallRpc(&cd0,AHX_PLAY,0,(void*)(&sbuff[0]),64,(void*)(&sbuff[0]),64,NULL,NULL);
    return 0;
}
 
int AHX_Pause()
{
    while(1){
        int i;
 
        if (SifBindRpc( &cd0, AHX_IRX, 0) < 0) return -1;
        if (cd0.server != 0) break;
        i = 0x10000;
        while(i--);
    }
    SifCallRpc(&cd0,AHX_PAUSE,0,(void*)(&sbuff[0]),64,(void*)(&sbuff[0]),64,NULL,NULL);
    return 0;
}
 
int AHX_SubSong(int songNo)
{
    while(1){
        int i;
 
        if (SifBindRpc( &cd0, AHX_IRX, 0) < 0) return -1;
        if (cd0.server != 0) break;
        i = 0x10000;
        while(i--);
    }
    sbuff[0] = (unsigned)songNo;
    SifCallRpc(&cd0,AHX_PAUSE,0,(void*)(&sbuff[0]),64,(void*)(&sbuff[0]),64,NULL,NULL);
    return 0;
}
 
int AHX_SetVolume(int volumePercentage)
{
    while(1){
        int i;
 
        if (SifBindRpc( &cd0, AHX_IRX, 0) < 0) return -1;
        if (cd0.server != 0) break;
        i = 0x10000;
        while(i--);
    }
    sbuff[0] = (unsigned)volumePercentage;
    SifCallRpc(&cd0,AHX_QUIT,0,(void*)(&sbuff[0]),64,(void*)(&sbuff[0]),64,NULL,NULL);
    return 0;
}
 
int  AHX_SetBoost(int boostValue)
{
    while(1){
        int i;
 
        if (SifBindRpc( &cd0, AHX_IRX, 0) < 0) return -1;
        if (cd0.server != 0) break;
        i = 0x10000;
        while(i--);
    }
    sbuff[0] = (unsigned)boostValue;
    SifCallRpc(&cd0,AHX_SETBOOST,0,(void*)(&sbuff[0]),64,(void*)(&sbuff[0]),64,NULL,NULL);
    return 0;
}
 
int  AHX_ToggleOversampling()
{
    while(1){
        int i;
 
        if (SifBindRpc( &cd0, AHX_IRX, 0) < 0) return -1;
        if (cd0.server != 0) break;
        i = 0x10000;
        while(i--);
    }
    SifCallRpc(&cd0,AHX_OVERSAMPLING,0,(void*)(&sbuff[0]),64,(void*)(&sbuff[0]),64,NULL,NULL);
    return 0;
}
 
int AHX_Quit()
{
    while(1){
        int i;
 
        if (SifBindRpc( &cd0, AHX_IRX, 0) < 0) return -1;
        if (cd0.server != 0) break;
        i = 0x10000;
        while(i--);
    }
    SifCallRpc(&cd0,AHX_QUIT,0,(void*)(&sbuff[0]),64,(void*)(&sbuff[0]),64,NULL,NULL);
    return 0;
}
 
int AHX_LoadSongBuffer(char* songdata, int songsize)
{
    // write song data to IOP song buffer
    iop_readwrite(songbuffer_addr, songdata, songsize, 0);
 
    while(1){
        int i;
 
        if (SifBindRpc( &cd0, AHX_IRX, 0) < 0) return -1;
        if (cd0.server != 0) break;
        i = 0x10000;
        while(i--);
    }
 
    // set oversample and boost
    sbuff[0] = (unsigned)songsize;
 
    // call rpc
    SifCallRpc(&cd0,AHX_LOADSONG,0,(void*)(&sbuff[0]),64,(void*)(&sbuff[0]),64,NULL,NULL);
 
    // return number of sub-songs
    return (int)sbuff[1];
}
 
int AHX_LoadSong(char* filename)
{
    int fd, fdSize;
    char* buffer;
 
    fd = open(filename, O_RDONLY);
    if(fd < 0)
    {
         printf("ERROR LOADING SONG\n");
         return -1;
    }
    fdSize = lseek(fd, 0, SEEK_END);
    lseek(fd, 0, SEEK_SET);
    buffer = malloc(fdSize);
    if(!buffer)
    {
         printf("ERROR ALLOCATING SONG MEMORY SONG\n");
         return -1;
    }
    read(fd, buffer, fdSize);
    close(fd);
    return AHX_LoadSongBuffer(buffer, fdSize);
}