diff options
Diffstat (limited to 'package/fonera-mp3/src/lib/mp3_common.c')
| -rw-r--r-- | package/fonera-mp3/src/lib/mp3_common.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/package/fonera-mp3/src/lib/mp3_common.c b/package/fonera-mp3/src/lib/mp3_common.c new file mode 100644 index 0000000000..3cdb0b8fcd --- /dev/null +++ b/package/fonera-mp3/src/lib/mp3_common.c @@ -0,0 +1,121 @@ +/* +* FOXMP3 +* Copyright (c) 2006 acmesystems.it - john@acmesystems.it +* +* 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 program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program; if not, write to the Free Software +* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA02111-1307USA +* +* Feedback, Bugs... info@acmesystems.it +* +*/ + +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <sys/ioctl.h> +#include <fcntl.h> + +#include "mp3.h" + +static int mp3_fd; +static int mp3_frequency_val = CRYSTAL12288; +unsigned int volume = 0x3030; + +int mp3_open_port(unsigned char *port_name){ + int fd; + if ((fd = open(port_name, O_RDWR)) < 0) { + printf("Error whilst opening %s\n", port_name); + return -1; + } + return fd; +}; + +void mp3_set_frequency(unsigned int crystal_frequency){ + mp3_frequency_val = crystal_frequency; +}; + +int mp3_init(void){ + mp3_fd = mp3_open_port("/dev/mp3"); + if(mp3_fd < 1){ + return 0; + }; + ioctl(mp3_fd, IOCTL_MP3_INIT, mp3_frequency_val); + return 1; +}; + +void mp3_shutdown(void){ + close(mp3_fd); +}; + +void mp3_bass(unsigned char t_freq, unsigned char t_amp, + unsigned char b_freq, unsigned char b_amp){ + unsigned int val; + if(t_amp > 0xf){ + t_amp = 0xf; + }; + if(b_amp > 0xf){ + b_amp = 0xf; + }; + val = t_amp; + val <<= 4; + val += t_freq; + val <<= 4; + val += b_amp; + val <<= 4; + val += b_freq; + ioctl(mp3_fd, IOCTL_MP3_BASS, val); +}; + +void mp3_reset(void){ + ioctl(mp3_fd, IOCTL_MP3_CLEARBUFFER, 0); + ioctl(mp3_fd, IOCTL_MP3_RESET, mp3_frequency_val); + ioctl(mp3_fd, IOCTL_MP3_SETVOLUME, volume); +}; + +unsigned char mp3_send_data_to_buffer(MP3_DATA mp3_data){ + return write(mp3_fd, (void*)&mp3_data, sizeof(MP3_DATA)); +}; + +unsigned char mp3_play(void){ + return ioctl(mp3_fd, IOCTL_MP3_PLAY, 0); +}; + +void mp3_stop(void){ + ioctl(mp3_fd, IOCTL_MP3_CLEARBUFFER, 0); +}; + +void mp3_beep(unsigned char freq, unsigned int ms){ + MP3_BEEP mp3_beep_; + mp3_beep_.freq = freq; + mp3_beep_.ms = ms; + ioctl(mp3_fd, IOCTL_MP3_BEEP, &mp3_beep_); +}; + +void mp3_set_volume(unsigned char left, unsigned char right){ + volume = left; + volume <<= 8; + volume += right; + + ioctl(mp3_fd, IOCTL_MP3_SETVOLUME, volume); +}; + +unsigned char mp3_buffer_finished(void){ + return ioctl(mp3_fd, IOCTL_MP3_END_REACHED, 0); +}; + +unsigned char mp3_get_audio_data(AUDIO_DATA *audio_data){ + return ioctl(mp3_fd, IOCTL_MP3_GETAUDIODATA, audio_data); +}; + + |