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authorSamuel Ortiz <samuel@sortiz.org>2006-05-25 19:19:22 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2006-06-18 00:26:18 -0400
commitc6ae522e3a50fc1ec483d7f03ece9c7a25e6de95 (patch)
tree98a67649b473bfc64751458283aeb3bb47e76703 /drivers/net/irda/mcs7780.h
parent15986e1aadbbf40a331cddd0470bb434d156431d (diff)
[IRDA]: Initial support for MCS7780 based dongles
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>
Diffstat (limited to 'drivers/net/irda/mcs7780.h')
-rw-r--r--drivers/net/irda/mcs7780.h167
1 files changed, 167 insertions, 0 deletions
diff --git a/drivers/net/irda/mcs7780.h b/drivers/net/irda/mcs7780.h
new file mode 100644
index 000000000000..1a723d725c2a
--- /dev/null
+++ b/drivers/net/irda/mcs7780.h
@@ -0,0 +1,167 @@
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
103struct 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 net_device_stats stats; /* network statistics */
108 struct qos_info qos;
109 unsigned int speed; /* Current speed */
110 unsigned int new_speed; /* new speed */
111
112 struct work_struct work; /* Change speed work */
113
114 struct sk_buff *tx_pending;
115 char in_buf[4096]; /* transmit/receive buffer */
116 char out_buf[4096]; /* transmit/receive buffer */
117 __u8 *fifo_status;
118
119 iobuff_t rx_buff; /* receive unwrap state machine */
120 struct timeval rx_time;
121 spinlock_t lock;
122 int receiving;
123
124 __u8 ep_in;
125 __u8 ep_out;
126
127 struct urb *rx_urb;
128 struct urb *tx_urb;
129
130 int transceiver_type;
131 int sir_tweak;
132 int receive_mode;
133};
134
135static int mcs_set_reg(struct mcs_cb *mcs, __u16 reg, __u16 val);
136static int mcs_get_reg(struct mcs_cb *mcs, __u16 reg, __u16 * val);
137
138static inline int mcs_setup_transceiver_vishay(struct mcs_cb *mcs);
139static inline int mcs_setup_transceiver_agilent(struct mcs_cb *mcs);
140static inline int mcs_setup_transceiver_sharp(struct mcs_cb *mcs);
141static inline int mcs_setup_transceiver(struct mcs_cb *mcs);
142static inline int mcs_wrap_sir_skb(struct sk_buff *skb, __u8 * buf);
143static unsigned mcs_wrap_fir_skb(const struct sk_buff *skb, __u8 *buf);
144static unsigned mcs_wrap_mir_skb(const struct sk_buff *skb, __u8 *buf);
145static void mcs_unwrap_mir(struct mcs_cb *mcs, __u8 *buf, int len);
146static void mcs_unwrap_fir(struct mcs_cb *mcs, __u8 *buf, int len);
147static inline int mcs_setup_urbs(struct mcs_cb *mcs);
148static inline int mcs_receive_start(struct mcs_cb *mcs);
149static inline int mcs_find_endpoints(struct mcs_cb *mcs,
150 struct usb_host_endpoint *ep, int epnum);
151
152static int mcs_speed_change(struct mcs_cb *mcs);
153
154static int mcs_net_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd);
155static int mcs_net_close(struct net_device *netdev);
156static int mcs_net_open(struct net_device *netdev);
157static struct net_device_stats *mcs_net_get_stats(struct net_device *netdev);
158
159static void mcs_receive_irq(struct urb *urb, struct pt_regs *regs);
160static void mcs_send_irq(struct urb *urb, struct pt_regs *regs);
161static int mcs_hard_xmit(struct sk_buff *skb, struct net_device *netdev);
162
163static int mcs_probe(struct usb_interface *intf,
164 const struct usb_device_id *id);
165static void mcs_disconnect(struct usb_interface *intf);
166
167#endif /* _MCS7780_H */
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