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ButterflyMP3
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VS1001 interface library. More...
Go to the source code of this file.
Defines | |
| #define | DREQ_DDR DDRE |
| #define | BSYNC_DDR DDRE |
| #define | xDCS_DDR DDRE |
| #define | MP3_DDR DDRB |
| #define | RESET_DDR DDRB |
| #define | DREQ_PORT PINE |
| #define | BSYNC_PORT PORTE |
| #define | xDCS_PORT PORTE |
| #define | MP3_PORT PORTB |
| #define | RESET_PORT PORTB |
| #define | DREQ_PIN PE6 |
| #define | BSYNC_PIN PE5 |
| #define | xDCS_PIN PE5 |
| #define | MP3_PIN PB0 |
| #define | RESET_PIN PB5 |
| #define | VS1011 |
| #define | SM_DIFF (1<<0) |
| #define | SM_LAYER12 (1<<1) |
| #define | SM_RESET (1<<2) |
| #define | SM_OUTOFWAV (1<<3) |
| #define | SM_SETTOZERO1 (1<<4) |
| #define | SM_TESTS (1<<5) |
| #define | SM_STREAM (1<<6) |
| #define | SM_SETTOZERO2 (1<<7) |
| #define | SM_DACT (1<<8) |
| #define | SM_SDIORD (1<<9) |
| #define | SM_SDISHARE (1<<10) |
| #define | SM_SDINEW (1<<11) |
| #define | SM_SETTOZERO3 (1<<12) |
| #define | SM_SETTOZERO4 (1<<13) |
| #define | SCI_MODE 0x0 |
| #define | SCI_STATUS 0x1 |
| #define | SCI_BASS 0x2 |
| #define | SCI_CLOCKF 0x3 |
| #define | SCI_DECODE_TIME 0x4 |
| #define | SCI_AUDATA 0x5 |
| #define | SCI_WRAM 0x6 |
| #define | SCI_WRAMADDR 0x7 |
| #define | SCI_HDAT0 0x8 |
| #define | SCI_HDAT1 0x9 |
| #define | SCI_AIADDR 0xA |
| #define | SCI_VOL 0xB |
| #define | SCI_AICTRL0 0xC |
| #define | SCI_AICTRL1 0xD |
| #define | SCI_AICTRL2 0xE |
| #define | SCI_AICTRL3 0xF |
Enumerations | |
| enum | reset_e { SOFT_RESET, HARD_RESET } |
Functions | |
| void | vs1001_init_io (void) |
| setup I/O pins and directions for communicating with the VS1001 | |
| void | vs1001_init_chip (void) |
| setup the VS1001 chip for decoding | |
| void | vs1001_reset (reset_e r) |
| reset the VS1001 | |
| void | vs1001_nulls (unsigned int nNulls) |
| send a number of zero's to the VS1001 | |
| void | vs1001_read (uint8 address, uint16 count, uint16 *pData) |
| read one or more word(s) from the VS1001 Control registers | |
| void | vs1001_write (uint8 address, uint16 count, uint16 *pData) |
| write one or more word(s) to the VS1001 Control registers | |
| void | vs_1001_setvolume (unsigned char left, unsigned char right) |
| Set the VS1001 volume. | |
| void | vs1001_send_data (unsigned char b) |
| send a byte to the VS1001 MPEG stream | |
| void | vs1001_send_32 (unsigned char *p) |
| send a burst of 32 data bytes to the VS1001 MPEG stream | |
| void | vs1001_sine_test (void) |
| send a sine test (5 beeps) | |
VS1001 interface library.
Copyright (C) 2000 Jesper Hansen <jesperh@telia.com>.
This file is part of the yampp system.
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, MA 02111-1307, USA.
Definition in file vs1001.h.
| #define BSYNC_DDR DDRE |
Definition at line 35 of file vs1001.h.
Referenced by vs1001_init_io().
| #define BSYNC_PIN PE5 |
Definition at line 47 of file vs1001.h.
Referenced by vs1001_init_io(), vs1001_read(), vs1001_send_32(), vs1001_send_data(), and vs1001_write().
| #define BSYNC_PORT PORTE |
Definition at line 41 of file vs1001.h.
Referenced by vs1001_init_io(), vs1001_read(), vs1001_send_32(), vs1001_send_data(), and vs1001_write().
| #define DREQ_DDR DDRE |
Definition at line 34 of file vs1001.h.
Referenced by vs1001_init_io().
| #define DREQ_PIN PE6 |
Definition at line 46 of file vs1001.h.
Referenced by main(), streaming(), vs1001_init_io(), and vs1001_reset().
| #define DREQ_PORT PINE |
Definition at line 40 of file vs1001.h.
Referenced by main(), streaming(), vs1001_init_io(), and vs1001_reset().
| #define MP3_DDR DDRB |
Definition at line 37 of file vs1001.h.
Referenced by vs1001_init_io().
| #define MP3_PIN PB0 |
Definition at line 49 of file vs1001.h.
Referenced by vs1001_init_io(), vs1001_read(), and vs1001_write().
| #define MP3_PORT PORTB |
Definition at line 43 of file vs1001.h.
Referenced by vs1001_init_io(), vs1001_read(), and vs1001_write().
| #define RESET_DDR DDRB |
Definition at line 38 of file vs1001.h.
Referenced by vs1001_init_io().
| #define RESET_PIN PB5 |
Definition at line 50 of file vs1001.h.
Referenced by Power_off(), vs1001_init_io(), and vs1001_reset().
| #define RESET_PORT PORTB |
Definition at line 44 of file vs1001.h.
Referenced by Power_off(), vs1001_init_io(), and vs1001_reset().
| #define SCI_CLOCKF 0x3 |
Definition at line 131 of file vs1001.h.
Referenced by flush_decoder(), and vs1001_reset().
| #define SCI_MODE 0x0 |
Definition at line 128 of file vs1001.h.
Referenced by flush_decoder(), Power_off(), vs1001_reset(), and vs1001_sine_test().
| #define SCI_VOL 0xB |
Definition at line 139 of file vs1001.h.
Referenced by vs_1001_setvolume().
| #define SM_RESET (1<<2) |
Definition at line 78 of file vs1001.h.
Referenced by vs1001_reset().
| #define SM_SDINEW (1<<11) |
Definition at line 87 of file vs1001.h.
Referenced by flush_decoder(), vs1001_reset(), and vs1001_sine_test().
| #define SM_TESTS (1<<5) |
Definition at line 81 of file vs1001.h.
Referenced by vs1001_sine_test().
| #define xDCS_DDR DDRE |
Definition at line 36 of file vs1001.h.
Referenced by vs1001_init_io().
| #define xDCS_PIN PE5 |
Definition at line 48 of file vs1001.h.
Referenced by vs1001_init_io(), vs1001_read(), vs1001_send_32(), vs1001_send_data(), and vs1001_write().
| #define xDCS_PORT PORTE |
Definition at line 42 of file vs1001.h.
Referenced by vs1001_init_io(), vs1001_read(), vs1001_send_32(), vs1001_send_data(), and vs1001_write().
| void vs1001_init_chip | ( | void | ) |
setup the VS1001 chip for decoding
Definition at line 260 of file vs1001.c.
References Delay(), HARD_RESET, SOFT_RESET, vs1001_nulls(), vs1001_reset(), and vs1001_sine_test().
Referenced by init_HW().
| void vs1001_init_io | ( | void | ) |
setup I/O pins and directions for communicating with the VS1001
Definition at line 233 of file vs1001.c.
References BSYNC_DDR, BSYNC_PIN, BSYNC_PORT, CBI, DREQ_DDR, DREQ_PIN, DREQ_PORT, MP3_DDR, MP3_PIN, MP3_PORT, RESET_DDR, RESET_PIN, RESET_PORT, SBI, xDCS_DDR, xDCS_PIN, and xDCS_PORT.
Referenced by init_HW().
| void vs1001_nulls | ( | unsigned int | nNulls | ) |
send a number of zero's to the VS1001
Definition at line 327 of file vs1001.c.
References vs1001_send_data().
Referenced by vs1001_init_chip(), and vs1001_reset().
read one or more word(s) from the VS1001 Control registers
Definition at line 67 of file vs1001.c.
References BSYNC_PIN, BSYNC_PORT, CBI, MP3_PIN, MP3_PORT, SBI, VS1001_READ, write_byte_spi, xDCS_PIN, and xDCS_PORT.
Referenced by flush_decoder(), and Power_off().
| void vs1001_reset | ( | reset_e | r | ) |
reset the VS1001
Definition at line 278 of file vs1001.c.
References CBI, Delay(), DREQ_PIN, DREQ_PORT, HARD_RESET, RESET_PIN, RESET_PORT, SBI, SCI_CLOCKF, SCI_MODE, SM_RESET, SM_SDINEW, SOFT_RESET, vs1001_nulls(), and vs1001_write().
Referenced by flush_decoder(), and vs1001_init_chip().
| void vs1001_send_32 | ( | unsigned char * | p | ) | [inline] |
send a burst of 32 data bytes to the VS1001 MPEG stream
Definition at line 187 of file vs1001.c.
References BSYNC_PIN, BSYNC_PORT, CBI, SBI, xDCS_PIN, and xDCS_PORT.
Referenced by streaming().
| void vs1001_send_data | ( | unsigned char | b | ) | [inline] |
send a byte to the VS1001 MPEG stream
Definition at line 153 of file vs1001.c.
References BSYNC_PIN, BSYNC_PORT, CBI, SBI, xDCS_PIN, and xDCS_PORT.
Referenced by vs1001_nulls(), and vs1001_sine_test().
| void vs1001_sine_test | ( | void | ) |
send a sine test (5 beeps)
Definition at line 348 of file vs1001.c.
References Delay(), SCI_MODE, SM_SDINEW, SM_TESTS, vs1001_send_data(), and vs1001_write().
Referenced by handle_interface(), and vs1001_init_chip().
write one or more word(s) to the VS1001 Control registers
Definition at line 101 of file vs1001.c.
References BSYNC_PIN, BSYNC_PORT, CBI, MP3_PIN, MP3_PORT, SBI, VS1001_WRITE, write_byte_spi, xDCS_PIN, and xDCS_PORT.
Referenced by flush_decoder(), Power_off(), vs1001_reset(), vs1001_sine_test(), and vs_1001_setvolume().
| void vs_1001_setvolume | ( | unsigned char | left, |
| unsigned char | right | ||
| ) |
Set the VS1001 volume.
Definition at line 336 of file vs1001.c.
References SCI_VOL, and vs1001_write().
Referenced by flush_decoder(), init_HW(), volume_down(), and volume_up().
1.7.3 
