/*
 * 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
 *
 */

#define MCS_CTRL_TIMEOUT        500

/* Possible transciever types */
#define MCS_TSC_VISHAY          0       /* Vishay TFD, default choice */
#define MCS_TSC_AGILENT         1       /* Agilent 3602/3600 */
#define MCS_TSC_SHARP           2       /* Sharp GP2W1000YP */
                                                                                
/* Requests */
#define MCS_RD_RTYPE 		0xC0
#define MCS_WR_RTYPE 		0x40
#define MCS_RDREQ    		0x0F
#define MCS_WRREQ    		0x0E
                                                                                
/* Register 0x00 */
#define MCS_MODE_REG    	0
#define MCS_FIR         	((__u16)0x0001)
#define MCS_SIR16US     	((__u16)0x0002)
//#define MCS_BBTG        	((__u16)0x0004)
//#define MCS_ASK         	((__u16)0x0008)
//#define MCS_PARITY      	((__u16)0x0010)



/* SIR/MIR speed constants */
#define MCS_SPEED_SHIFT         5
#define MCS_SPEED_MASK          ((__u16)0x00E0)
#define MCS_SPEED(x)            ((x & MCS_SPEED_MASK) >> MCS_SPEED_SHIFT)
#define MCS_SPEED_2400          ((0 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
#define MCS_SPEED_9600          ((1 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
#define MCS_SPEED_19200         ((2 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
#define MCS_SPEED_38400         ((3 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
#define MCS_SPEED_57600         ((4 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
#define MCS_SPEED_115200        ((5 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
#define MCS_SPEED_576000        ((6 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)
#define MCS_SPEED_1152000       ((7 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK)

#define MCS_PLLPWDN     ((__u16)0x0100)
#define MCS_DRIVER      ((__u16)0x0200)		//Driver Done bit in Mode register
//#define MCS_DTD         ((__u16)0x0400)
//#define MCS_DIR         ((__u16)0x0800)
//#define MCS_SENDSIP     ((__u16)0x2000)
//#define MCS_CHGDIR      ((__u16)0x4000)
#define MCS_SIPEN       ((__u16)0x1000)
#define MCS_RESET       ((__u16)0x8000)


/* Register 0x02 */
#define MCS_XCVR_REG    2
#define MCS_MODE0       ((__u16)0x0001)
#define MCS_STFIR       ((__u16)0x0002)
#define MCS_XCVR_CONF   ((__u16)0x0004)
#define MCS_TXPW_REG   	((__u16)0x0005)
#define MCS_RXFAST      ((__u16)0x0008)


/* TXCUR [6:4] */
//#define MCS_TXCUR_SHIFT 4
//#define MCS_TXCUR_MASK  ((__u16)0x0070)
//#define MCS_TXCUR(x)    ((x & MCS_TXCUR_MASK) >> MCS_TXCUR_SHIFT)
//#define MCS_SETTXCUR(x,y) ((x & ~MCS_TXCUR_MASK) | (y << MCS_TXCUR_SHIFT) & MCS_TXCUR_MASK)
                                                                                
#define MCS_MODE1       ((__u16)0x0080)
#define MCS_SMODE0      ((__u16)0x0100)
#define MCS_SMODE1      ((__u16)0x0200)
#define MCS_INVTX       ((__u16)0x0400)
#define MCS_INVRX       ((__u16)0x0800)
                                                                                
#define MCS_MINRXPW_REG 4
#define MCS_RESV_REG 		0x07
//#define MCS_IRINTX      ((__u16)0x0001)
//#define MCS_IRINRX      ((__u16)0x0002)

#define MAX_TX_URBS	12	// Maximum number of Tx urbs
#define MAX_TX_BUFFER_SIZE	2*2*2048
#define MAX_RX_URBS	2
#define MAX_RX_BUFFER_SIZE 	2*2048
struct mcs7780_cb {
        struct usb_device *usbdev;      /* init: probe_irda */
        int netopen;                    /* Device is active for network */
        int present;                    /* Device is present on the bus */
        __u8  bulk_in_ep;               /* Rx Endpoint assignments */
        __u8  bulk_out_ep;              /* Tx Endpoint assignments */
                                                                                                                                                             
        
	struct urb *tx_urb[MAX_TX_URBS];     /* URB used to send data frames */
        struct urb *rx_urb[MAX_RX_URBS]; /* URB used to receive data frames */
	struct urb *idle_rx_urb;	/* idle urb pending at one time */
                                                                                                                                                             
        struct net_device *netdev;      /* netdev. */
        struct net_device_stats stats;	/* statistics of network device */
        struct irlap_cb   *irlap;       /* The link layer we are binded to */
                                                                                                                                                             
	struct qos_info qos;		/* QOS structure */
        spinlock_t lock;                /* For serializing operations */
        __u32 speed;                    /* Current speed */
        __u32 new_speed;		/* new speed */
                                                                                                                                                             
        //iobuff_t rx_buff[MAX_RX_URBS];    /* buffer used after escape the data in SIR Mode */
        iobuff_t rx_buff;    /* buffer used after escape the data in SIR Mode */
        unsigned char *tx_buff; /* Tranmsit buffer */
        //unsigned char *rxdata;  /* Recieve buffer */
        
	pid_t thread_pid;	/* pid of thread */
	int thread_cond;	/* Condition of thread */

	unsigned int transciever_type;	/* transciever type */
	unsigned int receive_mode;	/* mode is useful if transciever is ~SHARP*/
	int sir_tweak;
	wait_queue_head_t restore_state_event; /* wait event to stop and start the thread */
	int close_flag;		/* flag to close the application before disconnecting */
	int ThreadState;	/* State of the Thread*/
	
};
const unsigned short fcsTable[256] =
{
        0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
        0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
        0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
        0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
        0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
        0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
        0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
        0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
        0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
        0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
        0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
        0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
        0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
        0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
        0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
        0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
        0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
        0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
        0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
        0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
        0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
        0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
        0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
        0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
        0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
        0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
        0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
        0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
        0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
        0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
        0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
        0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
};





