-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[PATCH] USB: usbnet (9/9) module for pl2301/2302 cables
This wraps up the conversion of the "usbnet" driver structure, by moving the Prolific PL-2201/2302 minidriver to a module of its own. It also includes some minor cleanups to the remaining "usbnet" file, notably removing that long changelog at the top. Minor historical note: Linux 2.2 first called the driver for this hardware "plusb". Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
- Loading branch information
David Brownell
authored and
Greg Kroah-Hartman
committed
Sep 8, 2005
1 parent
64e0491
commit 090ffa9
Showing
4 changed files
with
179 additions
and
217 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,156 @@ | ||
| /* | ||
| * PL-2301/2302 USB host-to-host link cables | ||
| * Copyright (C) 2000-2005 by David Brownell | ||
| * | ||
| * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| */ | ||
|
|
||
| // #define DEBUG // error path messages, extra info | ||
| // #define VERBOSE // more; success messages | ||
|
|
||
| #include <linux/config.h> | ||
| #ifdef CONFIG_USB_DEBUG | ||
| # define DEBUG | ||
| #endif | ||
| #include <linux/module.h> | ||
| #include <linux/sched.h> | ||
| #include <linux/init.h> | ||
| #include <linux/netdevice.h> | ||
| #include <linux/etherdevice.h> | ||
| #include <linux/ethtool.h> | ||
| #include <linux/workqueue.h> | ||
| #include <linux/mii.h> | ||
| #include <linux/usb.h> | ||
|
|
||
| #include "usbnet.h" | ||
|
|
||
|
|
||
| /* | ||
| * Prolific PL-2301/PL-2302 driver ... http://www.prolifictech.com | ||
| * | ||
| * The protocol and handshaking used here should be bug-compatible | ||
| * with the Linux 2.2 "plusb" driver, by Deti Fliegl. | ||
| * | ||
| * HEADS UP: this handshaking isn't all that robust. This driver | ||
| * gets confused easily if you unplug one end of the cable then | ||
| * try to connect it again; you'll need to restart both ends. The | ||
| * "naplink" software (used by some PlayStation/2 deveopers) does | ||
| * the handshaking much better! Also, sometimes this hardware | ||
| * seems to get wedged under load. Prolific docs are weak, and | ||
| * don't identify differences between PL2301 and PL2302, much less | ||
| * anything to explain the different PL2302 versions observed. | ||
| */ | ||
|
|
||
| /* | ||
| * Bits 0-4 can be used for software handshaking; they're set from | ||
| * one end, cleared from the other, "read" with the interrupt byte. | ||
| */ | ||
| #define PL_S_EN (1<<7) /* (feature only) suspend enable */ | ||
| /* reserved bit -- rx ready (6) ? */ | ||
| #define PL_TX_READY (1<<5) /* (interrupt only) transmit ready */ | ||
| #define PL_RESET_OUT (1<<4) /* reset output pipe */ | ||
| #define PL_RESET_IN (1<<3) /* reset input pipe */ | ||
| #define PL_TX_C (1<<2) /* transmission complete */ | ||
| #define PL_TX_REQ (1<<1) /* transmission received */ | ||
| #define PL_PEER_E (1<<0) /* peer exists */ | ||
|
|
||
| static inline int | ||
| pl_vendor_req(struct usbnet *dev, u8 req, u8 val, u8 index) | ||
| { | ||
| return usb_control_msg(dev->udev, | ||
| usb_rcvctrlpipe(dev->udev, 0), | ||
| req, | ||
| USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | ||
| val, index, | ||
| NULL, 0, | ||
| USB_CTRL_GET_TIMEOUT); | ||
| } | ||
|
|
||
| static inline int | ||
| pl_clear_QuickLink_features(struct usbnet *dev, int val) | ||
| { | ||
| return pl_vendor_req(dev, 1, (u8) val, 0); | ||
| } | ||
|
|
||
| static inline int | ||
| pl_set_QuickLink_features(struct usbnet *dev, int val) | ||
| { | ||
| return pl_vendor_req(dev, 3, (u8) val, 0); | ||
| } | ||
|
|
||
| static int pl_reset(struct usbnet *dev) | ||
| { | ||
| /* some units seem to need this reset, others reject it utterly. | ||
| * FIXME be more like "naplink" or windows drivers. | ||
| */ | ||
| (void) pl_set_QuickLink_features(dev, | ||
| PL_S_EN|PL_RESET_OUT|PL_RESET_IN|PL_PEER_E); | ||
| return 0; | ||
| } | ||
|
|
||
| static const struct driver_info prolific_info = { | ||
| .description = "Prolific PL-2301/PL-2302", | ||
| .flags = FLAG_NO_SETINT, | ||
| /* some PL-2302 versions seem to fail usb_set_interface() */ | ||
| .reset = pl_reset, | ||
| }; | ||
|
|
||
|
|
||
| /*-------------------------------------------------------------------------*/ | ||
|
|
||
| /* | ||
| * Proilific's name won't normally be on the cables, and | ||
| * may not be on the device. | ||
| */ | ||
|
|
||
| static const struct usb_device_id products [] = { | ||
|
|
||
| { | ||
| USB_DEVICE(0x067b, 0x0000), // PL-2301 | ||
| .driver_info = (unsigned long) &prolific_info, | ||
| }, { | ||
| USB_DEVICE(0x067b, 0x0001), // PL-2302 | ||
| .driver_info = (unsigned long) &prolific_info, | ||
| }, | ||
|
|
||
| { }, // END | ||
| }; | ||
| MODULE_DEVICE_TABLE(usb, products); | ||
|
|
||
| static struct usb_driver plusb_driver = { | ||
| .owner = THIS_MODULE, | ||
| .name = "plusb", | ||
| .id_table = products, | ||
| .probe = usbnet_probe, | ||
| .disconnect = usbnet_disconnect, | ||
| .suspend = usbnet_suspend, | ||
| .resume = usbnet_resume, | ||
| }; | ||
|
|
||
| static int __init plusb_init(void) | ||
| { | ||
| return usb_register(&plusb_driver); | ||
| } | ||
| module_init(plusb_init); | ||
|
|
||
| static void __exit plusb_exit(void) | ||
| { | ||
| usb_deregister(&plusb_driver); | ||
| } | ||
| module_exit(plusb_exit); | ||
|
|
||
| MODULE_AUTHOR("David Brownell"); | ||
| MODULE_DESCRIPTION("Prolific PL-2301/2302 USB Host to Host Link Driver"); | ||
| MODULE_LICENSE("GPL"); |
Oops, something went wrong.