82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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*
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* Module header for SI4709 FM Radio Chip, using /dev/si470x (si4709.ko) of Samsung YP-R0
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*
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* Copyright (c) 2012 Lorenzo Miori
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __SI4709_H__
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#define __SI4709_H__
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#include "stdint.h"
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/* 7bits I2C address */
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#define SI4709_I2C_SLAVE_ADDR 0x10
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#define SI4702_DEVICEID 0x00
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#define SI4702_CHIPID 0x01
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#define SI4702_POWERCFG 0x02
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#define SI4702_CHANNEL 0x03
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#define SI4702_SYSCONFIG1 0x04
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#define SI4702_SYSCONFIG2 0x05
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#define SI4702_SYSCONFIG3 0x06
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#define SI4702_TEST1 0x07
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#define SI4702_TEST2 0x08
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#define SI4702_B00TCONFIG 0x09
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#define SI4702_STATUSRSSI 0x0A
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#define SI4702_READCHAN 0x0B
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#define SI4709_REG_NUM 0x10
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#define SI4702_REG_BYTE (SI4709_REG_NUM * 2)
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#define SI4702_DEVICE_ID 0x1242
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#define SI4702_RW_REG_NUM (SI4702_STATUSRSSI - SI4702_POWERCFG)
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#define SI4702_RW_OFFSET \
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(SI4709_REG_NUM - SI4702_STATUSRSSI + SI4702_POWERCFG)
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#define BYTE_TO_WORD(hi, lo) (((hi) << 8) & 0xFF00) | ((lo) & 0x00FF)
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typedef struct {
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int addr;
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uint16_t value;
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}__attribute__((packed)) sSi4709_t;
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typedef struct {
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int size;
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unsigned char *buf;
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}__attribute__((packed)) sSi4709_i2c_t;
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typedef enum
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{
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IOCTL_SI4709_INIT = 0,
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IOCTL_SI4709_CLOSE,
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IOCTL_SI4709_WRITE_BYTE,
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IOCTL_SI4709_READ_BYTE,
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IOCTL_SI4709_I2C_WRITE,
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IOCTL_SI4709_I2C_READ,
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E_IOCTL_SI4709_MAX
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} eSi4709_ioctl_t;
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#define DRV_IOCTL_SI4709_MAGIC 'S'
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#define IOCTL_SI4709_INIT _IO(DRV_IOCTL_SI4709_MAGIC, IOCTL_SI4709_INIT)
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#define IOCTL_SI4709_CLOSE _IO(DRV_IOCTL_SI4709_MAGIC, IOCTL_SI4709_CLOSE)
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#define IOCTL_SI4709_WRITE_BYTE _IOW(DRV_IOCTL_SI4709_MAGIC, IOCTL_SI4709_WRITE_BYTE, sSi4709_t)
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#define IOCTL_SI4709_READ_BYTE _IOR(DRV_IOCTL_SI4709_MAGIC, IOCTL_SI4709_READ_BYTE, sSi4709_t)
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#define IOCTL_SI4709_I2C_WRITE _IOW(DRV_IOCTL_SI4709_MAGIC, IOCTL_SI4709_I2C_WRITE, sSi4709_i2c_t)
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#define IOCTL_SI4709_I2C_READ _IOR(DRV_IOCTL_SI4709_MAGIC, IOCTL_SI4709_I2C_READ, sSi4709_i2c_t)
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#endif /* __SI4709_H__ */
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