c6ae522e3a
The MosChip MCS7780 chipset is an IrDA USB bridge that doesn't conform with the IrDA-USB standard and thus needs its separate driver. Tested on an actual MCS7780 based dongle. Original implementation by Brian Pugh <bpugh@cs.pdx.edu> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
168 lines
6.0 KiB
C
168 lines
6.0 KiB
C
/*****************************************************************************
|
|
*
|
|
* Filename: mcs7780.h
|
|
* Version: 0.2-alpha
|
|
* Description: Irda MosChip USB Dongle
|
|
* Status: Experimental
|
|
* Authors: Lukasz Stelmach <stlman@poczta.fm>
|
|
* Brian Pugh <bpugh@cs.pdx.edu>
|
|
*
|
|
* Copyright (C) 2005, Lukasz Stelmach <stlman@poczta.fm>
|
|
* Copyright (C) 2005, Brian Pugh <bpugh@cs.pdx.edu>
|
|
*
|
|
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*****************************************************************************/
|
|
#ifndef _MCS7780_H
|
|
#define _MCS7780_H
|
|
|
|
#define MCS_MODE_SIR 0
|
|
#define MCS_MODE_MIR 1
|
|
#define MCS_MODE_FIR 2
|
|
|
|
#define MCS_CTRL_TIMEOUT 500
|
|
#define MCS_XMIT_TIMEOUT 500
|
|
/* Possible transceiver 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)
|
|
#define MCS_DTD ((__u16)0x0400)
|
|
#define MCS_DIR ((__u16)0x0800)
|
|
#define MCS_SIPEN ((__u16)0x1000)
|
|
#define MCS_SENDSIP ((__u16)0x2000)
|
|
#define MCS_CHGDIR ((__u16)0x4000)
|
|
#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_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 7
|
|
#define MCS_IRINTX ((__u16)0x0001)
|
|
#define MCS_IRINRX ((__u16)0x0002)
|
|
|
|
struct mcs_cb {
|
|
struct usb_device *usbdev; /* init: probe_irda */
|
|
struct net_device *netdev; /* network layer */
|
|
struct irlap_cb *irlap; /* The link layer we are binded to */
|
|
struct net_device_stats stats; /* network statistics */
|
|
struct qos_info qos;
|
|
unsigned int speed; /* Current speed */
|
|
unsigned int new_speed; /* new speed */
|
|
|
|
struct work_struct work; /* Change speed work */
|
|
|
|
struct sk_buff *tx_pending;
|
|
char in_buf[4096]; /* transmit/receive buffer */
|
|
char out_buf[4096]; /* transmit/receive buffer */
|
|
__u8 *fifo_status;
|
|
|
|
iobuff_t rx_buff; /* receive unwrap state machine */
|
|
struct timeval rx_time;
|
|
spinlock_t lock;
|
|
int receiving;
|
|
|
|
__u8 ep_in;
|
|
__u8 ep_out;
|
|
|
|
struct urb *rx_urb;
|
|
struct urb *tx_urb;
|
|
|
|
int transceiver_type;
|
|
int sir_tweak;
|
|
int receive_mode;
|
|
};
|
|
|
|
static int mcs_set_reg(struct mcs_cb *mcs, __u16 reg, __u16 val);
|
|
static int mcs_get_reg(struct mcs_cb *mcs, __u16 reg, __u16 * val);
|
|
|
|
static inline int mcs_setup_transceiver_vishay(struct mcs_cb *mcs);
|
|
static inline int mcs_setup_transceiver_agilent(struct mcs_cb *mcs);
|
|
static inline int mcs_setup_transceiver_sharp(struct mcs_cb *mcs);
|
|
static inline int mcs_setup_transceiver(struct mcs_cb *mcs);
|
|
static inline int mcs_wrap_sir_skb(struct sk_buff *skb, __u8 * buf);
|
|
static unsigned mcs_wrap_fir_skb(const struct sk_buff *skb, __u8 *buf);
|
|
static unsigned mcs_wrap_mir_skb(const struct sk_buff *skb, __u8 *buf);
|
|
static void mcs_unwrap_mir(struct mcs_cb *mcs, __u8 *buf, int len);
|
|
static void mcs_unwrap_fir(struct mcs_cb *mcs, __u8 *buf, int len);
|
|
static inline int mcs_setup_urbs(struct mcs_cb *mcs);
|
|
static inline int mcs_receive_start(struct mcs_cb *mcs);
|
|
static inline int mcs_find_endpoints(struct mcs_cb *mcs,
|
|
struct usb_host_endpoint *ep, int epnum);
|
|
|
|
static int mcs_speed_change(struct mcs_cb *mcs);
|
|
|
|
static int mcs_net_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd);
|
|
static int mcs_net_close(struct net_device *netdev);
|
|
static int mcs_net_open(struct net_device *netdev);
|
|
static struct net_device_stats *mcs_net_get_stats(struct net_device *netdev);
|
|
|
|
static void mcs_receive_irq(struct urb *urb, struct pt_regs *regs);
|
|
static void mcs_send_irq(struct urb *urb, struct pt_regs *regs);
|
|
static int mcs_hard_xmit(struct sk_buff *skb, struct net_device *netdev);
|
|
|
|
static int mcs_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id);
|
|
static void mcs_disconnect(struct usb_interface *intf);
|
|
|
|
#endif /* _MCS7780_H */
|