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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 */ | |
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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 | struct timeval rx_time; | |
120 | spinlock_t lock; | |
121 | int receiving; | |
122 | ||
123 | __u8 ep_in; | |
124 | __u8 ep_out; | |
125 | ||
126 | struct urb *rx_urb; | |
127 | struct urb *tx_urb; | |
128 | ||
129 | int transceiver_type; | |
130 | int sir_tweak; | |
131 | int receive_mode; | |
132 | }; | |
133 | ||
134 | static int mcs_set_reg(struct mcs_cb *mcs, __u16 reg, __u16 val); | |
135 | static int mcs_get_reg(struct mcs_cb *mcs, __u16 reg, __u16 * val); | |
136 | ||
137 | static inline int mcs_setup_transceiver_vishay(struct mcs_cb *mcs); | |
138 | static inline int mcs_setup_transceiver_agilent(struct mcs_cb *mcs); | |
139 | static inline int mcs_setup_transceiver_sharp(struct mcs_cb *mcs); | |
140 | static inline int mcs_setup_transceiver(struct mcs_cb *mcs); | |
141 | static inline int mcs_wrap_sir_skb(struct sk_buff *skb, __u8 * buf); | |
142 | static unsigned mcs_wrap_fir_skb(const struct sk_buff *skb, __u8 *buf); | |
143 | static unsigned mcs_wrap_mir_skb(const struct sk_buff *skb, __u8 *buf); | |
144 | static void mcs_unwrap_mir(struct mcs_cb *mcs, __u8 *buf, int len); | |
145 | static void mcs_unwrap_fir(struct mcs_cb *mcs, __u8 *buf, int len); | |
146 | static inline int mcs_setup_urbs(struct mcs_cb *mcs); | |
147 | static inline int mcs_receive_start(struct mcs_cb *mcs); | |
148 | static inline int mcs_find_endpoints(struct mcs_cb *mcs, | |
149 | struct usb_host_endpoint *ep, int epnum); | |
150 | ||
151 | static int mcs_speed_change(struct mcs_cb *mcs); | |
152 | ||
153 | static int mcs_net_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd); | |
154 | static int mcs_net_close(struct net_device *netdev); | |
155 | static int mcs_net_open(struct net_device *netdev); | |
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157 | static void mcs_receive_irq(struct urb *urb); |
158 | static void mcs_send_irq(struct urb *urb); | |
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159 | static netdev_tx_t mcs_hard_xmit(struct sk_buff *skb, |
160 | struct net_device *netdev); | |
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161 | |
162 | static int mcs_probe(struct usb_interface *intf, | |
163 | const struct usb_device_id *id); | |
164 | static void mcs_disconnect(struct usb_interface *intf); | |
165 | ||
166 | #endif /* _MCS7780_H */ |