1 /***************************************************************************** 2 * 3 * Filename: mcs7780.h 4 * Version: 0.2-alpha 5 * Description: Irda MosChip USB Dongle 6 * Status: Experimental 7 * Authors: Lukasz Stelmach <stlman@poczta.fm> 8 * Brian Pugh <bpugh@cs.pdx.edu> 9 * 10 * Copyright (C) 2005, Lukasz Stelmach <stlman@poczta.fm> 11 * Copyright (C) 2005, Brian Pugh <bpugh@cs.pdx.edu> 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License as published by 15 * the Free Software Foundation; either version 2 of the License, or 16 * (at your option) any later version. 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 * 23 * You should have received a copy of the GNU General Public License 24 * along with this program; if not, write to the Free Software 25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 26 * 27 *****************************************************************************/ 28 #ifndef _MCS7780_H 29 #define _MCS7780_H 30 31 #define MCS_MODE_SIR 0 32 #define MCS_MODE_MIR 1 33 #define MCS_MODE_FIR 2 34 35 #define MCS_CTRL_TIMEOUT 500 36 #define MCS_XMIT_TIMEOUT 500 37 /* Possible transceiver types */ 38 #define MCS_TSC_VISHAY 0 /* Vishay TFD, default choice */ 39 #define MCS_TSC_AGILENT 1 /* Agilent 3602/3600 */ 40 #define MCS_TSC_SHARP 2 /* Sharp GP2W1000YP */ 41 42 /* Requests */ 43 #define MCS_RD_RTYPE 0xC0 44 #define MCS_WR_RTYPE 0x40 45 #define MCS_RDREQ 0x0F 46 #define MCS_WRREQ 0x0E 47 48 /* Register 0x00 */ 49 #define MCS_MODE_REG 0 50 #define MCS_FIR ((__u16)0x0001) 51 #define MCS_SIR16US ((__u16)0x0002) 52 #define MCS_BBTG ((__u16)0x0004) 53 #define MCS_ASK ((__u16)0x0008) 54 #define MCS_PARITY ((__u16)0x0010) 55 56 /* SIR/MIR speed constants */ 57 #define MCS_SPEED_SHIFT 5 58 #define MCS_SPEED_MASK ((__u16)0x00E0) 59 #define MCS_SPEED(x) ((x & MCS_SPEED_MASK) >> MCS_SPEED_SHIFT) 60 #define MCS_SPEED_2400 ((0 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK) 61 #define MCS_SPEED_9600 ((1 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK) 62 #define MCS_SPEED_19200 ((2 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK) 63 #define MCS_SPEED_38400 ((3 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK) 64 #define MCS_SPEED_57600 ((4 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK) 65 #define MCS_SPEED_115200 ((5 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK) 66 #define MCS_SPEED_576000 ((6 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK) 67 #define MCS_SPEED_1152000 ((7 << MCS_SPEED_SHIFT) & MCS_SPEED_MASK) 68 69 #define MCS_PLLPWDN ((__u16)0x0100) 70 #define MCS_DRIVER ((__u16)0x0200) 71 #define MCS_DTD ((__u16)0x0400) 72 #define MCS_DIR ((__u16)0x0800) 73 #define MCS_SIPEN ((__u16)0x1000) 74 #define MCS_SENDSIP ((__u16)0x2000) 75 #define MCS_CHGDIR ((__u16)0x4000) 76 #define MCS_RESET ((__u16)0x8000) 77 78 /* Register 0x02 */ 79 #define MCS_XCVR_REG 2 80 #define MCS_MODE0 ((__u16)0x0001) 81 #define MCS_STFIR ((__u16)0x0002) 82 #define MCS_XCVR_CONF ((__u16)0x0004) 83 #define MCS_RXFAST ((__u16)0x0008) 84 /* TXCUR [6:4] */ 85 #define MCS_TXCUR_SHIFT 4 86 #define MCS_TXCUR_MASK ((__u16)0x0070) 87 #define MCS_TXCUR(x) ((x & MCS_TXCUR_MASK) >> MCS_TXCUR_SHIFT) 88 #define MCS_SETTXCUR(x,y) \ 89 ((x & ~MCS_TXCUR_MASK) | (y << MCS_TXCUR_SHIFT) & MCS_TXCUR_MASK) 90 91 #define MCS_MODE1 ((__u16)0x0080) 92 #define MCS_SMODE0 ((__u16)0x0100) 93 #define MCS_SMODE1 ((__u16)0x0200) 94 #define MCS_INVTX ((__u16)0x0400) 95 #define MCS_INVRX ((__u16)0x0800) 96 97 #define MCS_MINRXPW_REG 4 98 99 #define MCS_RESV_REG 7 100 #define MCS_IRINTX ((__u16)0x0001) 101 #define MCS_IRINRX ((__u16)0x0002) 102 103 struct mcs_cb { 104 struct usb_device *usbdev; /* init: probe_irda */ 105 struct net_device *netdev; /* network layer */ 106 struct irlap_cb *irlap; /* The link layer we are binded to */ 107 struct qos_info qos; 108 unsigned int speed; /* Current speed */ 109 unsigned int new_speed; /* new speed */ 110 111 struct work_struct work; /* Change speed work */ 112 113 struct sk_buff *tx_pending; 114 char in_buf[4096]; /* transmit/receive buffer */ 115 char out_buf[4096]; /* transmit/receive buffer */ 116 __u8 *fifo_status; 117 118 iobuff_t rx_buff; /* receive unwrap state machine */ 119 spinlock_t lock; 120 int receiving; 121 122 __u8 ep_in; 123 __u8 ep_out; 124 125 struct urb *rx_urb; 126 struct urb *tx_urb; 127 128 int transceiver_type; 129 int sir_tweak; 130 int receive_mode; 131 }; 132 133 static int mcs_set_reg(struct mcs_cb *mcs, __u16 reg, __u16 val); 134 static int mcs_get_reg(struct mcs_cb *mcs, __u16 reg, __u16 * val); 135 136 static inline int mcs_setup_transceiver_vishay(struct mcs_cb *mcs); 137 static inline int mcs_setup_transceiver_agilent(struct mcs_cb *mcs); 138 static inline int mcs_setup_transceiver_sharp(struct mcs_cb *mcs); 139 static inline int mcs_setup_transceiver(struct mcs_cb *mcs); 140 static inline int mcs_wrap_sir_skb(struct sk_buff *skb, __u8 * buf); 141 static unsigned mcs_wrap_fir_skb(const struct sk_buff *skb, __u8 *buf); 142 static unsigned mcs_wrap_mir_skb(const struct sk_buff *skb, __u8 *buf); 143 static void mcs_unwrap_mir(struct mcs_cb *mcs, __u8 *buf, int len); 144 static void mcs_unwrap_fir(struct mcs_cb *mcs, __u8 *buf, int len); 145 static inline int mcs_setup_urbs(struct mcs_cb *mcs); 146 static inline int mcs_receive_start(struct mcs_cb *mcs); 147 static inline int mcs_find_endpoints(struct mcs_cb *mcs, 148 struct usb_host_endpoint *ep, int epnum); 149 150 static int mcs_speed_change(struct mcs_cb *mcs); 151 152 static int mcs_net_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd); 153 static int mcs_net_close(struct net_device *netdev); 154 static int mcs_net_open(struct net_device *netdev); 155 156 static void mcs_receive_irq(struct urb *urb); 157 static void mcs_send_irq(struct urb *urb); 158 static netdev_tx_t mcs_hard_xmit(struct sk_buff *skb, 159 struct net_device *netdev); 160 161 static int mcs_probe(struct usb_interface *intf, 162 const struct usb_device_id *id); 163 static void mcs_disconnect(struct usb_interface *intf); 164 165 #endif /* _MCS7780_H */ 166