/* SPDX-License-Identifier: GPL-2.0-only */


#ifndef MISDNHW_H
#define MISDNHW_H
#include <linux/mISDNif.h>
#include <linux/timer.h>



#define DEBUG_HW		0x00000001
#define DEBUG_HW_OPEN		0x00000002
#define DEBUG_HW_DCHANNEL	0x00000100
#define DEBUG_HW_DFIFO		0x00000200
#define DEBUG_HW_BCHANNEL	0x00001000
#define DEBUG_HW_BFIFO		0x00002000

#define MAX_DFRAME_LEN_L1	300
#define MAX_MON_FRAME		32
#define MAX_LOG_SPACE		2048
#define MISDN_COPY_SIZE		32


#define FLG_TX_BUSY		0	
#define FLG_TX_NEXT		1	
#define FLG_L1_BUSY		2	
#define FLG_L2_ACTIVATED	3	
#define FLG_OPEN		5	
#define FLG_ACTIVE		6	
#define FLG_BUSY_TIMER		7

#define FLG_DCHANNEL		8	
#define FLG_BCHANNEL		9	
#define FLG_ECHANNEL		10	
#define FLG_TRANSPARENT		12	
#define FLG_HDLC		13	
#define FLG_L2DATA		14	
#define FLG_ORIGIN		15	

#define FLG_FILLEMPTY		16	

#define FLG_ARCOFI_TIMER	17
#define FLG_ARCOFI_ERROR	18

#define FLG_INITIALIZED		17
#define FLG_DLEETX		18
#define FLG_LASTDLE		19
#define FLG_FIRST		20
#define FLG_LASTDATA		21
#define FLG_NMD_DATA		22
#define FLG_FTI_RUN		23
#define FLG_LL_OK		24
#define FLG_LL_CONN		25
#define FLG_DTMFSEND		26
#define FLG_TX_EMPTY		27

#define FLG_RX_OFF		28

#define FLG_RECVQUEUE		30
#define	FLG_PHCHANGE		31

#define schedule_event(s, ev)	do { \
					test_and_set_bit(ev, &((s)->Flags)); \
					schedule_work(&((s)->workq)); \
				} while (0)

struct dchannel {
	struct mISDNdevice	dev;
	u_long			Flags;
	struct work_struct	workq;
	void			(*phfunc) (struct dchannel *);
	u_int			state;
	void			*l1;
	void			*hw;
	int			slot;	
	struct timer_list	timer;
	
	struct sk_buff		*rx_skb;
	int			maxlen;
	
	struct sk_buff_head	squeue;
	struct sk_buff_head	rqueue;
	struct sk_buff		*tx_skb;
	int			tx_idx;
	int			debug;
	
	int			err_crc;
	int			err_tx;
	int			err_rx;
};

typedef int	(dchannel_l1callback)(struct dchannel *, u_int);
extern int	create_l1(struct dchannel *, dchannel_l1callback *);


#define INFO0		0x8002
#define INFO1		0x8102
#define INFO2		0x8202
#define INFO3_P8	0x8302
#define INFO3_P10	0x8402
#define INFO4_P8	0x8502
#define INFO4_P10	0x8602
#define LOSTFRAMING	0x8702
#define ANYSIGNAL	0x8802
#define HW_POWERDOWN	0x8902
#define HW_RESET_REQ	0x8a02
#define HW_POWERUP_REQ	0x8b02
#define HW_DEACT_REQ	0x8c02
#define HW_ACTIVATE_REQ	0x8e02
#define HW_D_NOBLOCKED  0x8f02
#define HW_RESET_IND	0x9002
#define HW_POWERUP_IND	0x9102
#define HW_DEACT_IND	0x9202
#define HW_ACTIVATE_IND	0x9302
#define HW_DEACT_CNF	0x9402
#define HW_TESTLOOP	0x9502
#define HW_TESTRX_RAW	0x9602
#define HW_TESTRX_HDLC	0x9702
#define HW_TESTRX_OFF	0x9802
#define HW_TIMER3_IND	0x9902
#define HW_TIMER3_VALUE	0x9a00
#define HW_TIMER3_VMASK	0x00FF

struct layer1;
extern int	l1_event(struct layer1 *, u_int);

#define MISDN_BCH_FILL_SIZE	4

struct bchannel {
	struct mISDNchannel	ch;
	int			nr;
	u_long			Flags;
	struct work_struct	workq;
	u_int			state;
	void			*hw;
	int			slot;	
	struct timer_list	timer;
	
	u8			fill[MISDN_BCH_FILL_SIZE];
	struct sk_buff		*rx_skb;
	unsigned short		maxlen;
	unsigned short		init_maxlen; 
	unsigned short		next_maxlen; 
	unsigned short		minlen; 
	unsigned short		init_minlen; 
	unsigned short		next_minlen; 
	
	struct sk_buff		*next_skb;
	struct sk_buff		*tx_skb;
	struct sk_buff_head	rqueue;
	int			rcount;
	int			tx_idx;
	int			debug;
	
	int			err_crc;
	int			err_tx;
	int			err_rx;
	int			dropcnt;
};

extern int	mISDN_initdchannel(struct dchannel *, int, void *);
extern int	mISDN_initbchannel(struct bchannel *, unsigned short,
				   unsigned short);
extern int	mISDN_freedchannel(struct dchannel *);
extern void	mISDN_clear_bchannel(struct bchannel *);
extern void	mISDN_freebchannel(struct bchannel *);
extern int	mISDN_ctrl_bchannel(struct bchannel *, struct mISDN_ctrl_req *);
extern void	queue_ch_frame(struct mISDNchannel *, u_int,
			int, struct sk_buff *);
extern int	dchannel_senddata(struct dchannel *, struct sk_buff *);
extern int	bchannel_senddata(struct bchannel *, struct sk_buff *);
extern int      bchannel_get_rxbuf(struct bchannel *, int);
extern void	recv_Dchannel(struct dchannel *);
extern void	recv_Echannel(struct dchannel *, struct dchannel *);
extern void	recv_Bchannel(struct bchannel *, unsigned int, bool);
extern void	recv_Dchannel_skb(struct dchannel *, struct sk_buff *);
extern void	recv_Bchannel_skb(struct bchannel *, struct sk_buff *);
extern int	get_next_bframe(struct bchannel *);
extern int	get_next_dframe(struct dchannel *);

#endif
