diff options
Diffstat (limited to 'drivers/usb/net/plusb.c')
-rw-r--r-- | drivers/usb/net/plusb.c | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/drivers/usb/net/plusb.c b/drivers/usb/net/plusb.c deleted file mode 100644 index 45300939d185..000000000000 --- a/drivers/usb/net/plusb.c +++ /dev/null | |||
@@ -1,150 +0,0 @@ | |||
1 | /* | ||
2 | * PL-2301/2302 USB host-to-host link cables | ||
3 | * Copyright (C) 2000-2005 by David Brownell | ||
4 | * | ||
5 | * This program is free software; you can redistribute it and/or modify | ||
6 | * it under the terms of the GNU General Public License as published by | ||
7 | * the Free Software Foundation; either version 2 of the License, or | ||
8 | * (at your option) any later version. | ||
9 | * | ||
10 | * This program is distributed in the hope that it will be useful, | ||
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
13 | * GNU General Public License for more details. | ||
14 | * | ||
15 | * You should have received a copy of the GNU General Public License | ||
16 | * along with this program; if not, write to the Free Software | ||
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
18 | */ | ||
19 | |||
20 | // #define DEBUG // error path messages, extra info | ||
21 | // #define VERBOSE // more; success messages | ||
22 | |||
23 | #include <linux/module.h> | ||
24 | #include <linux/init.h> | ||
25 | #include <linux/netdevice.h> | ||
26 | #include <linux/etherdevice.h> | ||
27 | #include <linux/ethtool.h> | ||
28 | #include <linux/workqueue.h> | ||
29 | #include <linux/mii.h> | ||
30 | #include <linux/usb.h> | ||
31 | |||
32 | #include "usbnet.h" | ||
33 | |||
34 | |||
35 | /* | ||
36 | * Prolific PL-2301/PL-2302 driver ... http://www.prolifictech.com | ||
37 | * | ||
38 | * The protocol and handshaking used here should be bug-compatible | ||
39 | * with the Linux 2.2 "plusb" driver, by Deti Fliegl. | ||
40 | * | ||
41 | * HEADS UP: this handshaking isn't all that robust. This driver | ||
42 | * gets confused easily if you unplug one end of the cable then | ||
43 | * try to connect it again; you'll need to restart both ends. The | ||
44 | * "naplink" software (used by some PlayStation/2 deveopers) does | ||
45 | * the handshaking much better! Also, sometimes this hardware | ||
46 | * seems to get wedged under load. Prolific docs are weak, and | ||
47 | * don't identify differences between PL2301 and PL2302, much less | ||
48 | * anything to explain the different PL2302 versions observed. | ||
49 | */ | ||
50 | |||
51 | /* | ||
52 | * Bits 0-4 can be used for software handshaking; they're set from | ||
53 | * one end, cleared from the other, "read" with the interrupt byte. | ||
54 | */ | ||
55 | #define PL_S_EN (1<<7) /* (feature only) suspend enable */ | ||
56 | /* reserved bit -- rx ready (6) ? */ | ||
57 | #define PL_TX_READY (1<<5) /* (interrupt only) transmit ready */ | ||
58 | #define PL_RESET_OUT (1<<4) /* reset output pipe */ | ||
59 | #define PL_RESET_IN (1<<3) /* reset input pipe */ | ||
60 | #define PL_TX_C (1<<2) /* transmission complete */ | ||
61 | #define PL_TX_REQ (1<<1) /* transmission received */ | ||
62 | #define PL_PEER_E (1<<0) /* peer exists */ | ||
63 | |||
64 | static inline int | ||
65 | pl_vendor_req(struct usbnet *dev, u8 req, u8 val, u8 index) | ||
66 | { | ||
67 | return usb_control_msg(dev->udev, | ||
68 | usb_rcvctrlpipe(dev->udev, 0), | ||
69 | req, | ||
70 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | ||
71 | val, index, | ||
72 | NULL, 0, | ||
73 | USB_CTRL_GET_TIMEOUT); | ||
74 | } | ||
75 | |||
76 | static inline int | ||
77 | pl_clear_QuickLink_features(struct usbnet *dev, int val) | ||
78 | { | ||
79 | return pl_vendor_req(dev, 1, (u8) val, 0); | ||
80 | } | ||
81 | |||
82 | static inline int | ||
83 | pl_set_QuickLink_features(struct usbnet *dev, int val) | ||
84 | { | ||
85 | return pl_vendor_req(dev, 3, (u8) val, 0); | ||
86 | } | ||
87 | |||
88 | static int pl_reset(struct usbnet *dev) | ||
89 | { | ||
90 | /* some units seem to need this reset, others reject it utterly. | ||
91 | * FIXME be more like "naplink" or windows drivers. | ||
92 | */ | ||
93 | (void) pl_set_QuickLink_features(dev, | ||
94 | PL_S_EN|PL_RESET_OUT|PL_RESET_IN|PL_PEER_E); | ||
95 | return 0; | ||
96 | } | ||
97 | |||
98 | static const struct driver_info prolific_info = { | ||
99 | .description = "Prolific PL-2301/PL-2302", | ||
100 | .flags = FLAG_NO_SETINT, | ||
101 | /* some PL-2302 versions seem to fail usb_set_interface() */ | ||
102 | .reset = pl_reset, | ||
103 | }; | ||
104 | |||
105 | |||
106 | /*-------------------------------------------------------------------------*/ | ||
107 | |||
108 | /* | ||
109 | * Proilific's name won't normally be on the cables, and | ||
110 | * may not be on the device. | ||
111 | */ | ||
112 | |||
113 | static const struct usb_device_id products [] = { | ||
114 | |||
115 | { | ||
116 | USB_DEVICE(0x067b, 0x0000), // PL-2301 | ||
117 | .driver_info = (unsigned long) &prolific_info, | ||
118 | }, { | ||
119 | USB_DEVICE(0x067b, 0x0001), // PL-2302 | ||
120 | .driver_info = (unsigned long) &prolific_info, | ||
121 | }, | ||
122 | |||
123 | { }, // END | ||
124 | }; | ||
125 | MODULE_DEVICE_TABLE(usb, products); | ||
126 | |||
127 | static struct usb_driver plusb_driver = { | ||
128 | .name = "plusb", | ||
129 | .id_table = products, | ||
130 | .probe = usbnet_probe, | ||
131 | .disconnect = usbnet_disconnect, | ||
132 | .suspend = usbnet_suspend, | ||
133 | .resume = usbnet_resume, | ||
134 | }; | ||
135 | |||
136 | static int __init plusb_init(void) | ||
137 | { | ||
138 | return usb_register(&plusb_driver); | ||
139 | } | ||
140 | module_init(plusb_init); | ||
141 | |||
142 | static void __exit plusb_exit(void) | ||
143 | { | ||
144 | usb_deregister(&plusb_driver); | ||
145 | } | ||
146 | module_exit(plusb_exit); | ||
147 | |||
148 | MODULE_AUTHOR("David Brownell"); | ||
149 | MODULE_DESCRIPTION("Prolific PL-2301/2302 USB Host to Host Link Driver"); | ||
150 | MODULE_LICENSE("GPL"); | ||