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si4703.h
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si4703.h
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/* Si4703 based RDS scanner
Copyright (c) 2014 Andrey Chilikin (https://github.com/achilikin)
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, see <http://www.gnu.org/licenses/>.
*/
/*
Si4702/03 FM Radio Receiver ICs:
http://www.silabs.com/products/audio/fmreceivers/pages/si470203.aspx
Si4703S-C19 Data Sheet:
https://www.sparkfun.com/datasheets/BreakoutBoards/Si4702-03-C19-1.pdf
Si4703S-B16 Data Sheet:
Not on SiLabs site anymore, google for it
Si4700/01/02/03 Firmware Change List, AN281:
Not on SiLabs site anymore, google for it
Using RDS/RBDS with the Si4701/03:
http://www.silabs.com/Support%20Documents/TechnicalDocs/AN243.pdf
Si4700/01/02/03 Programming Guide:
http://www.silabs.com/Support%20Documents/TechnicalDocs/AN230.pdf
RBDS Standard:
ftp://ftp.rds.org.uk/pub/acrobat/rbds1998.pdf
*/
#ifndef __SI4703_B16_H__
#define __SI4703_B16_H__
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#if 0 // dummy bracket for VAssistX
}
#endif
#endif
#define _BM(bit) (1 << ((uint16_t)bit)) // convert bit number to bit mask
#define SI4703_ADDR 0x10
#define SI_RESET 23
// Define the register names
#define DEVICEID 0x00
#define CHIPID 0x01
#define POWERCFG 0x02
#define DSMUTE _BM(15)
#define DMUTE _BM(14)
#define MONO _BM(13)
#define RDSM _BM(11)
#define SKMODE _BM(10)
#define SEEKUP _BM(9)
#define SEEK _BM(8)
#define PWR_DISABLE _BM(6)
#define PWR_ENABLE _BM(0)
// seek direction
#define SEEK_DOWN 0
#define SEEK_UP 1
#define CHANNEL 0x03
#define TUNE _BM(15)
#define CHAN 0x003FF
#define SYSCONF1 0x04
#define RDSIEN _BM(15)
#define STCIEN _BM(14)
#define RDS _BM(12)
#define DE _BM(11)
#define AGCD _BM(10)
#define BLNDADJ 0x00C0
#define GPIO3 0x0030
#define GPIO2 0x000C
#define GPIO1 0x0003
#define SYSCONF2 0x05
#define SEEKTH 0xFF00
#define BAND 0x00C0
#define SPACING 0x0030
#define VOLUME 0x000F
#define BAND0 0x0000 // 87.5 - 107 MHz (Europe, USA)
#define BAND1 0x0040 // 76-108 MHz (Japan wide band)
#define BAND2 0x0080 // 76-90 MHz (Japan)
#define SPACE50 0x0020 // 50 kHz spacing
#define SPACE100 0x0010 // 100 kHz (Europe, Japan)
#define SPACE200 0x0000 // 200 kHz (USA, Australia)
#define SYSCONF3 0x06
#define SMUTER 0xC000
#define SMUTEA 0x3000
#define RDSPRF _BM(9)
#define VOLEXT _BM(8)
#define SKSNR 0x00F0
#define SKCNT 0x000F
#define TEST1 0x07
#define XOSCEN _BM(15)
#define AHIZEN _BM(14)
#define TEST2 0x08
#define BOOTCONF 0x09
#define STATUSRSSI 0x0A
#define RDSR _BM(15)
#define STC _BM(14)
#define SFBL _BM(13)
#define AFCRL _BM(12)
#define RDSS _BM(11)
#define BLERA 0x0600
#define STEREO _BM(8)
#define RSSI 0x00FF
#define READCHAN 0x0B
#define BLERB 0xC000
#define BLERC 0x3000
#define BLERD 0x0C00
#define RCHAN 0x03FF
#define RDSA 0x0C
#define RDSB 0x0D
#define RDSC 0x0E
#define RDSD 0x0F
int si_read_regs(uint16_t *regs);
int si_update(uint16_t *regs);
void si_dump(int fd, uint16_t *regs, const char *title, uint16_t span);
void si_power(uint16_t *regs, uint16_t mode);
void si_set_volume(uint16_t *regs, int volume);
int si_get_freq(uint16_t *regs);
int si_seek(uint16_t *regs, int dir);
void si_set_channel(uint16_t *regs, int chan);
void si_tune(uint16_t *regs, int freq);
int si_set_state(uint16_t *regs, const char *name, uint16_t val);
void si_set_rdsprf(uint16_t *regs, int set);
extern int si_band[3][2];
extern int si_space[3];
#ifdef __cplusplus
}
#endif
#endif