Aquaris-M10-4G/drivers/misc/mediatek/fmradio/inc/fm_rds.h

#ifndef __FM_RDS_H__
#define __FM_RDS_H__
#include "fm_typedef.h"

/* FM_RDS_DATA_CRC_FFOST */
#define FM_RDS_GDBK_IND_A	 (0x08)
#define FM_RDS_GDBK_IND_B	 (0x04)
#define FM_RDS_GDBK_IND_C	 (0x02)
#define FM_RDS_GDBK_IND_D	 (0x01)
#define FM_RDS_DCO_FIFO_OFST (0x01E0)
#define	FM_RDS_READ_DELAY	 (0x80)

#define RDS_RX_BLOCK_PER_GROUP (4)
#define RDS_RX_GROUP_SIZE (2*RDS_RX_BLOCK_PER_GROUP)
#define MAX_RDS_RX_GROUP_CNT (12)
#define RDS_RT_MULTI_REV_TH 80	/* 100 */
/* #define RDS_CBC_DEPENDENCY */

typedef struct rds_packet_t {
	fm_u16 blkA;
	fm_u16 blkB;
	fm_u16 blkC;
	fm_u16 blkD;
	fm_u16 cbc;		/* correct bit cnt */
	fm_u16 crc;		/* crc checksum */
} rds_packet_t;

typedef struct rds_rx_t {
	fm_u16 sin;
	fm_u16 cos;
	rds_packet_t data[MAX_RDS_RX_GROUP_CNT];
} rds_rx_t;

typedef enum rds_ps_state_machine_t {
	RDS_PS_START = 0,
	RDS_PS_DECISION,
	RDS_PS_GETLEN,
	RDS_PS_DISPLAY,
	RDS_PS_FINISH,
	RDS_PS_MAX
} rds_ps_state_machine_t;

typedef enum rds_rt_state_machine_t {
	RDS_RT_START = 0,
	RDS_RT_DECISION,
	RDS_RT_GETLEN,
	RDS_RT_DISPLAY,
	RDS_RT_FINISH,
	RDS_RT_MAX
} rds_rt_state_machine_t;

enum {
	RDS_GRP_VER_A = 0,	/* group version A */
	RDS_GRP_VER_B
};

typedef enum rds_blk_t {
	RDS_BLK_A = 0,
	RDS_BLK_B,
	RDS_BLK_C,
	RDS_BLK_D,
	RDS_BLK_MAX
} rds_blk_t;

/* For RDS feature, these strcutures also be defined in "fm.h" */
typedef struct rds_flag_t {
	fm_u8 TP;
	fm_u8 TA;
	fm_u8 Music;
	fm_u8 Stereo;
	fm_u8 Artificial_Head;
	fm_u8 Compressed;
	fm_u8 Dynamic_PTY;
	fm_u8 Text_AB;
	fm_u32 flag_status;
} rds_flag_t;

typedef struct rds_ct_t {
	fm_u16 Month;
	fm_u16 Day;
	fm_u16 Year;
	fm_u16 Hour;
	fm_u16 Minute;
	fm_u8 Local_Time_offset_signbit;
	fm_u8 Local_Time_offset_half_hour;
} rds_ct_t;

typedef struct rds_af_t {
	fm_s16 AF_Num;
	fm_s16 AF[2][25];	/* 100KHz */
	fm_u8 Addr_Cnt;
	fm_u8 isMethod_A;
	fm_u8 isAFNum_Get;
} rds_af_t;

typedef struct rds_ps_t {
	fm_u8 PS[4][8];
	fm_u8 Addr_Cnt;
} rds_ps_t;

typedef struct rds_rt_t {
	fm_u8 TextData[4][64];
	fm_u8 GetLength;
	fm_u8 isRTDisplay;
	fm_u8 TextLength;
	fm_u8 isTypeA;
	fm_u8 BufCnt;
	fm_u16 Addr_Cnt;
} rds_rt_t;

typedef struct rds_raw_t {
	fm_s32 dirty;		/* indicate if the data changed or not */
	fm_s32 len;		/* the data len form chip */
	fm_u8 data[146];
} rds_raw_t;

typedef struct rds_group_cnt_t {
	unsigned int total;
	unsigned int groupA[16];	/* RDS groupA counter */
	unsigned int groupB[16];	/* RDS groupB counter */
} rds_group_cnt_t;

typedef enum rds_group_cnt_op_t {
	RDS_GROUP_CNT_READ = 0,
	RDS_GROUP_CNT_WRITE,
	RDS_GROUP_CNT_RESET,
	RDS_GROUP_CNT_MAX
} rds_group_cnt_op_t;

typedef struct rds_group_cnt_req_t {
	fm_s32 err;
	enum rds_group_cnt_op_t op;
	struct rds_group_cnt_t gc;
} rds_group_cnt_req_t;

typedef struct rds_t {
	struct rds_ct_t CT;
	struct rds_flag_t RDSFlag;
	fm_u16 PI;
	fm_u8 Switch_TP;
	fm_u8 PTY;
	struct rds_af_t AF_Data;
	struct rds_af_t AFON_Data;
	fm_u8 Radio_Page_Code;
	fm_u16 Program_Item_Number_Code;
	fm_u8 Extend_Country_Code;
	fm_u16 Language_Code;
	struct rds_ps_t PS_Data;
	fm_u8 PS_ON[8];
	struct rds_rt_t RT_Data;
	fm_u16 event_status;	/* will use RDSFlag_Struct RDSFlag->flag_status to check which event, is that ok? */
	struct rds_group_cnt_t gc;
} rds_t;

/* Need care the following definition. */
/* valid Rds Flag for notify */
typedef enum rds_flag_status_t {
	RDS_FLAG_IS_TP = 0x0001,	/* Program is a traffic program */
	RDS_FLAG_IS_TA = 0x0002,	/* Program currently broadcasts a traffic ann. */
	RDS_FLAG_IS_MUSIC = 0x0004,	/* Program currently broadcasts music */
	RDS_FLAG_IS_STEREO = 0x0008,	/* Program is transmitted in stereo */
	RDS_FLAG_IS_ARTIFICIAL_HEAD = 0x0010,	/* Program is an artificial head recording */
	RDS_FLAG_IS_COMPRESSED = 0x0020,	/* Program content is compressed */
	RDS_FLAG_IS_DYNAMIC_PTY = 0x0040,	/* Program type can change */
	RDS_FLAG_TEXT_AB = 0x0080	/* If this flag changes state, a new radio text string begins */
} rds_flag_status_t;

typedef enum rds_event_status_t {
	RDS_EVENT_FLAGS = 0x0001,	/* One of the RDS flags has changed state */
	RDS_EVENT_PI_CODE = 0x0002,	/* The program identification code has changed */
	RDS_EVENT_PTY_CODE = 0x0004,	/* The program type code has changed */
	RDS_EVENT_PROGRAMNAME = 0x0008,	/* The program name has changed */
	RDS_EVENT_UTCDATETIME = 0x0010,	/* A new UTC date/time is available */
	RDS_EVENT_LOCDATETIME = 0x0020,	/* A new local date/time is available */
	RDS_EVENT_LAST_RADIOTEXT = 0x0040,	/* A radio text string was completed */
	RDS_EVENT_AF = 0x0080,	/* Current Channel RF signal strength too weak, need do AF switch */
	RDS_EVENT_AF_LIST = 0x0100,	/* An alternative frequency list is ready */
	RDS_EVENT_AFON_LIST = 0x0200,	/* An alternative frequency list is ready */
	RDS_EVENT_TAON = 0x0400,	/* Other Network traffic announcement start */
	RDS_EVENT_TAON_OFF = 0x0800,	/* Other Network traffic announcement finished. */
	RDS_EVENT_RDS = 0x2000,	/* RDS Interrupt had arrived durint timer period */
	RDS_EVENT_NO_RDS = 0x4000,	/* RDS Interrupt not arrived durint timer period */
	RDS_EVENT_RDS_TIMER = 0x8000	/* Timer for RDS Bler Check. ---- BLER  block error rate */
} rds_event_status_t;

#define RDS_LOG_SIZE 2
struct rds_log_t {
	struct rds_rx_t rds_log[RDS_LOG_SIZE];
	fm_s32 log_len[RDS_LOG_SIZE];
	fm_u32 size;
	fm_u32 in;
	fm_u32 out;
	fm_u32 len;
	fm_s32 (*log_in)(struct rds_log_t *thiz, struct rds_rx_t *new_log, fm_s32 new_len);
	fm_s32 (*log_out)(struct rds_log_t *thiz, struct rds_rx_t *dst, fm_s32 *dst_len);
};

extern fm_s32 rds_parser(rds_t *rds_dst, struct rds_rx_t *rds_raw, fm_s32 rds_size, fm_u16(*getfreq) (void));
extern fm_s32 rds_grp_counter_get(struct rds_group_cnt_t *dst, struct rds_group_cnt_t *src);
extern fm_s32 rds_grp_counter_reset(struct rds_group_cnt_t *gc);
extern fm_s32 rds_log_in(struct rds_log_t *thiz, struct rds_rx_t *new_log, fm_s32 new_len);
extern fm_s32 rds_log_out(struct rds_log_t *thiz, struct rds_rx_t *dst, fm_s32 *dst_len);

#define DEFINE_RDSLOG(name) \
	struct rds_log_t name = { \
		.size = RDS_LOG_SIZE, \
		.in = 0, \
		.out = 0, \
		.len = 0, \
		.log_in = rds_log_in, \
		.log_out = rds_log_out, \
	}

#endif /* __FM_RDS_H__ */