forked from Minki/linux
[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>
This commit is contained in:
parent
64e049102d
commit
090ffa9d0e
@ -99,7 +99,7 @@ config USB_USBNET
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with "minidrivers" built around a common network driver core
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with "minidrivers" built around a common network driver core
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that supports deep queues for efficient transfers. (This gives
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that supports deep queues for efficient transfers. (This gives
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better performance with small packets and at high speeds).
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better performance with small packets and at high speeds).
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The USB host runs "usbnet", and the other end of the link might be:
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The USB host runs "usbnet", and the other end of the link might be:
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- Another USB host, when using USB "network" or "data transfer"
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- Another USB host, when using USB "network" or "data transfer"
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@ -125,20 +125,6 @@ config USB_USBNET
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To compile this driver as a module, choose M here: the
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To compile this driver as a module, choose M here: the
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module will be called usbnet.
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module will be called usbnet.
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comment "USB Host-to-Host Cables"
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depends on USB_USBNET
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config USB_PL2301
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boolean "Prolific PL-2301/2302 based cables"
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default y
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# handshake/init/reset problems, from original 'plusb' driver
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depends on USB_USBNET && EXPERIMENTAL
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help
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Choose this option if you're using a host-to-host cable
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with one of these chips.
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comment "Drivers built using the usbnet core"
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config USB_NET_AX8817X
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config USB_NET_AX8817X
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tristate "ASIX AX88xxx Based USB 2.0 Ethernet Adapters"
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tristate "ASIX AX88xxx Based USB 2.0 Ethernet Adapters"
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depends on USB_USBNET && NET_ETHERNET
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depends on USB_USBNET && NET_ETHERNET
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@ -212,6 +198,15 @@ config USB_NET_NET1080
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on this design: one NetChip 1080 chip and supporting logic,
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on this design: one NetChip 1080 chip and supporting logic,
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optionally with LEDs that indicate traffic
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optionally with LEDs that indicate traffic
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config USB_NET_PLUSB
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tristate "Prolific PL-2301/2302 based cables"
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# if the handshake/init/reset problems, from original 'plusb',
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# are ever resolved ... then remove "experimental"
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depends on USB_USBNET && EXPERIMENTAL
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help
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Choose this option if you're using a host-to-host cable
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with one of these chips.
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config USB_NET_RNDIS_HOST
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config USB_NET_RNDIS_HOST
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tristate "Host for RNDIS devices (EXPERIMENTAL)"
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tristate "Host for RNDIS devices (EXPERIMENTAL)"
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depends on USB_USBNET && EXPERIMENTAL
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depends on USB_USBNET && EXPERIMENTAL
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@ -10,6 +10,7 @@ obj-$(CONFIG_USB_NET_AX8817X) += asix.o
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obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
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obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
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obj-$(CONFIG_USB_NET_GL620A) += gl620a.o
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obj-$(CONFIG_USB_NET_GL620A) += gl620a.o
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obj-$(CONFIG_USB_NET_NET1080) += net1080.o
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obj-$(CONFIG_USB_NET_NET1080) += net1080.o
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obj-$(CONFIG_USB_NET_PLUSB) += plusb.o
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obj-$(CONFIG_USB_NET_RNDIS_HOST) += rndis_host.o
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obj-$(CONFIG_USB_NET_RNDIS_HOST) += rndis_host.o
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obj-$(CONFIG_USB_NET_CDC_SUBSET) += cdc_subset.o
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obj-$(CONFIG_USB_NET_CDC_SUBSET) += cdc_subset.o
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obj-$(CONFIG_USB_NET_ZAURUS) += zaurus.o
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obj-$(CONFIG_USB_NET_ZAURUS) += zaurus.o
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156
drivers/usb/net/plusb.c
Normal file
156
drivers/usb/net/plusb.c
Normal file
@ -0,0 +1,156 @@
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/*
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* PL-2301/2302 USB host-to-host link cables
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* Copyright (C) 2000-2005 by David Brownell
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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// #define DEBUG // error path messages, extra info
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// #define VERBOSE // more; success messages
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#include <linux/config.h>
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#ifdef CONFIG_USB_DEBUG
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# define DEBUG
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#endif
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#include <linux/module.h>
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#include <linux/sched.h>
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#include <linux/init.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/ethtool.h>
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#include <linux/workqueue.h>
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#include <linux/mii.h>
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#include <linux/usb.h>
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#include "usbnet.h"
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/*
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* Prolific PL-2301/PL-2302 driver ... http://www.prolifictech.com
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*
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* The protocol and handshaking used here should be bug-compatible
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* with the Linux 2.2 "plusb" driver, by Deti Fliegl.
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*
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* HEADS UP: this handshaking isn't all that robust. This driver
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* gets confused easily if you unplug one end of the cable then
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* try to connect it again; you'll need to restart both ends. The
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* "naplink" software (used by some PlayStation/2 deveopers) does
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* the handshaking much better! Also, sometimes this hardware
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* seems to get wedged under load. Prolific docs are weak, and
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* don't identify differences between PL2301 and PL2302, much less
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* anything to explain the different PL2302 versions observed.
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*/
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/*
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* Bits 0-4 can be used for software handshaking; they're set from
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* one end, cleared from the other, "read" with the interrupt byte.
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*/
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#define PL_S_EN (1<<7) /* (feature only) suspend enable */
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/* reserved bit -- rx ready (6) ? */
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#define PL_TX_READY (1<<5) /* (interrupt only) transmit ready */
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#define PL_RESET_OUT (1<<4) /* reset output pipe */
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#define PL_RESET_IN (1<<3) /* reset input pipe */
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#define PL_TX_C (1<<2) /* transmission complete */
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#define PL_TX_REQ (1<<1) /* transmission received */
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#define PL_PEER_E (1<<0) /* peer exists */
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static inline int
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pl_vendor_req(struct usbnet *dev, u8 req, u8 val, u8 index)
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{
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return usb_control_msg(dev->udev,
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usb_rcvctrlpipe(dev->udev, 0),
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req,
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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val, index,
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NULL, 0,
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USB_CTRL_GET_TIMEOUT);
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}
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static inline int
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pl_clear_QuickLink_features(struct usbnet *dev, int val)
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{
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return pl_vendor_req(dev, 1, (u8) val, 0);
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}
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static inline int
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pl_set_QuickLink_features(struct usbnet *dev, int val)
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{
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return pl_vendor_req(dev, 3, (u8) val, 0);
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}
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static int pl_reset(struct usbnet *dev)
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{
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/* some units seem to need this reset, others reject it utterly.
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* FIXME be more like "naplink" or windows drivers.
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*/
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(void) pl_set_QuickLink_features(dev,
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PL_S_EN|PL_RESET_OUT|PL_RESET_IN|PL_PEER_E);
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return 0;
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}
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static const struct driver_info prolific_info = {
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.description = "Prolific PL-2301/PL-2302",
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.flags = FLAG_NO_SETINT,
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/* some PL-2302 versions seem to fail usb_set_interface() */
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.reset = pl_reset,
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};
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/*-------------------------------------------------------------------------*/
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/*
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* Proilific's name won't normally be on the cables, and
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* may not be on the device.
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*/
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static const struct usb_device_id products [] = {
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{
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USB_DEVICE(0x067b, 0x0000), // PL-2301
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.driver_info = (unsigned long) &prolific_info,
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}, {
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USB_DEVICE(0x067b, 0x0001), // PL-2302
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.driver_info = (unsigned long) &prolific_info,
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},
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{ }, // END
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};
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MODULE_DEVICE_TABLE(usb, products);
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static struct usb_driver plusb_driver = {
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.owner = THIS_MODULE,
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.name = "plusb",
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.id_table = products,
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.probe = usbnet_probe,
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.disconnect = usbnet_disconnect,
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.suspend = usbnet_suspend,
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.resume = usbnet_resume,
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};
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static int __init plusb_init(void)
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{
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return usb_register(&plusb_driver);
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}
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module_init(plusb_init);
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static void __exit plusb_exit(void)
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{
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usb_deregister(&plusb_driver);
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}
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module_exit(plusb_exit);
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MODULE_AUTHOR("David Brownell");
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MODULE_DESCRIPTION("Prolific PL-2301/2302 USB Host to Host Link Driver");
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MODULE_LICENSE("GPL");
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@ -1,5 +1,5 @@
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/*
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/*
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* USB Networking Links
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* USB Network driver infrastructure
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* Copyright (C) 2000-2005 by David Brownell
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* Copyright (C) 2000-2005 by David Brownell
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* Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
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* Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
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*
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*
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@ -20,96 +20,15 @@
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/*
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/*
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* This is a generic "USB networking" framework that works with several
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* This is a generic "USB networking" framework that works with several
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* kinds of full and high speed networking devices:
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* kinds of full and high speed networking devices: host-to-host cables,
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* smart usb peripherals, and actual Ethernet adapters.
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*
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*
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* + USB host-to-host "network cables", used for IP-over-USB links.
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* These devices usually differ in terms of control protocols (if they
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* These are often used for Laplink style connectivity products.
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* even have one!) and sometimes they define new framing to wrap or batch
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* - AnchorChip 2720
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* Ethernet packets. Otherwise, they talk to USB pretty much the same,
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* - Belkin, eTEK (interops with Win32 drivers)
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* so interface (un)binding, endpoint I/O queues, fault handling, and other
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* - GeneSys GL620USB-A
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* issues can usefully be addressed by this framework.
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* - NetChip 1080 (interoperates with NetChip Win32 drivers)
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*/
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* - Prolific PL-2301/2302 (replaces "plusb" driver)
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* - KC Technology KC2190
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*
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* + Smart USB devices can support such links directly, using Internet
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* standard protocols instead of proprietary host-to-device links.
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* - Linux PDAs like iPaq, Yopy, and Zaurus
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* - The BLOB boot loader (for diskless booting)
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* - Linux "gadgets", perhaps using PXA-2xx or Net2280 controllers
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* - Devices using EPSON's sample USB firmware
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* - CDC-Ethernet class devices, such as many cable modems
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*
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* + Adapters to networks such as Ethernet.
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* - AX8817X based USB 2.0 products
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*
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* Links to these devices can be bridged using Linux Ethernet bridging.
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* With minor exceptions, these all use similar USB framing for network
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* traffic, but need different protocols for control traffic.
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*
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* USB devices can implement their side of this protocol at the cost
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* of two bulk endpoints; it's not restricted to "cable" applications.
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* See the SA1110, Zaurus, or EPSON device/client support in this driver;
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* slave/target drivers such as "usb-eth" (on most SA-1100 PDAs) or
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* "g_ether" (in the Linux "gadget" framework) implement that behavior
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* within devices.
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*
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*
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* CHANGELOG:
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*
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* 13-sep-2000 experimental, new
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* 10-oct-2000 usb_device_id table created.
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* 28-oct-2000 misc fixes; mostly, discard more TTL-mangled rx packets.
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* 01-nov-2000 usb_device_id table and probing api update by
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* Adam J. Richter <adam@yggdrasil.com>.
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* 18-dec-2000 (db) tx watchdog, "net1080" renaming to "usbnet", device_info
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* and prolific support, isolate net1080-specific bits, cleanup.
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* fix unlink_urbs oops in D3 PM resume code path.
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*
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* 02-feb-2001 (db) fix tx skb sharing, packet length, match_flags, ...
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* 08-feb-2001 stubbed in "linuxdev", maybe the SA-1100 folk can use it;
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* AnchorChips 2720 support (from spec) for testing;
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* fix bit-ordering problem with ethernet multicast addr
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* 19-feb-2001 Support for clearing halt conditions. SA1100 UDC support
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* updates. Oleg Drokin (green@iXcelerator.com)
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* 25-mar-2001 More SA-1100 updates, including workaround for ip problem
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* expecting cleared skb->cb and framing change to match latest
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* handhelds.org version (Oleg). Enable device IDs from the
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* Win32 Belkin driver; other cleanups (db).
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* 16-jul-2001 Bugfixes for uhci oops-on-unplug, Belkin support, various
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* cleanups for problems not yet seen in the field. (db)
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* 17-oct-2001 Handle "Advance USBNET" product, like Belkin/eTEK devices,
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* from Ioannis Mavroukakis <i.mavroukakis@btinternet.com>;
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* rx unlinks somehow weren't async; minor cleanup.
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* 03-nov-2001 Merged GeneSys driver; original code from Jiun-Jie Huang
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* <huangjj@genesyslogic.com.tw>, updated by Stanislav Brabec
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* <utx@penguin.cz>. Made framing options (NetChip/GeneSys)
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* tie mostly to (sub)driver info. Workaround some PL-2302
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* chips that seem to reject SET_INTERFACE requests.
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*
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* 06-apr-2002 Added ethtool support, based on a patch from Brad Hards.
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* Level of diagnostics is more configurable; they use device
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* location (usb_device->devpath) instead of address (2.5).
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* For tx_fixup, memflags can't be NOIO.
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* 07-may-2002 Generalize/cleanup keventd support, handling rx stalls (mostly
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* for USB 2.0 TTs) and memory shortages (potential) too. (db)
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* Use "locally assigned" IEEE802 address space. (Brad Hards)
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* 18-oct-2002 Support for Zaurus (Pavel Machek), related cleanup (db).
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* 14-dec-2002 Remove Zaurus-private crc32 code (Pavel); 2.5 oops fix,
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* cleanups and stubbed PXA-250 support (db), fix for framing
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* issues on Z, net1080, and gl620a (Toby Milne)
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*
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* 31-mar-2003 Use endpoint descriptors: high speed support, simpler sa1100
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* vs pxa25x, and CDC Ethernet. Throttle down log floods on
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* disconnect; other cleanups. (db) Flush net1080 fifos
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* after several sequential framing errors. (Johannes Erdfelt)
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* 22-aug-2003 AX8817X support (Dave Hollis).
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*
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* 14-jun-2004 Trivial patch for AX8817X based Buffalo LUA-U2-KTX in Japan
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* (Neil Bortnak)
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* 03-nov-2004 Trivial patch for KC2190 (KC-190) chip. (Jonathan McDowell)
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*
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* 01-feb-2005 AX88772 support (Phil Chang & Dave Hollis)
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*-------------------------------------------------------------------------*/
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// #define DEBUG // error path messages, extra info
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// #define DEBUG // error path messages, extra info
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// #define VERBOSE // more; success messages
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// #define VERBOSE // more; success messages
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@ -301,77 +220,6 @@ void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
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}
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}
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EXPORT_SYMBOL_GPL(usbnet_skb_return);
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EXPORT_SYMBOL_GPL(usbnet_skb_return);
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||||||
|
|
||||||
#ifdef CONFIG_USB_PL2301
|
|
||||||
#define HAVE_HARDWARE
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------
|
|
||||||
*
|
|
||||||
* 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.
|
|
||||||
*
|
|
||||||
*-------------------------------------------------------------------------*/
|
|
||||||
|
|
||||||
/*
|
|
||||||
* 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,
|
|
||||||
};
|
|
||||||
|
|
||||||
#endif /* CONFIG_USB_PL2301 */
|
|
||||||
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------
|
/*-------------------------------------------------------------------------
|
||||||
*
|
*
|
||||||
@ -1354,62 +1202,24 @@ int usbnet_resume (struct usb_interface *intf)
|
|||||||
EXPORT_SYMBOL_GPL(usbnet_resume);
|
EXPORT_SYMBOL_GPL(usbnet_resume);
|
||||||
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*/
|
|
||||||
|
|
||||||
#ifndef HAVE_HARDWARE
|
|
||||||
#error You need to configure some hardware for this driver
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/*
|
|
||||||
* chip vendor names won't normally be on the cables, and
|
|
||||||
* may not be on the device.
|
|
||||||
*/
|
|
||||||
|
|
||||||
static const struct usb_device_id products [] = {
|
|
||||||
|
|
||||||
#ifdef CONFIG_USB_PL2301
|
|
||||||
{
|
|
||||||
USB_DEVICE (0x067b, 0x0000), // PL-2301
|
|
||||||
.driver_info = (unsigned long) &prolific_info,
|
|
||||||
}, {
|
|
||||||
USB_DEVICE (0x067b, 0x0001), // PL-2302
|
|
||||||
.driver_info = (unsigned long) &prolific_info,
|
|
||||||
},
|
|
||||||
#endif
|
|
||||||
{ }, // END
|
|
||||||
};
|
|
||||||
MODULE_DEVICE_TABLE (usb, products);
|
|
||||||
|
|
||||||
static struct usb_driver usbnet_driver = {
|
|
||||||
.owner = THIS_MODULE,
|
|
||||||
.name = driver_name,
|
|
||||||
.id_table = products,
|
|
||||||
.probe = usbnet_probe,
|
|
||||||
.disconnect = usbnet_disconnect,
|
|
||||||
.suspend = usbnet_suspend,
|
|
||||||
.resume = usbnet_resume,
|
|
||||||
};
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*/
|
/*-------------------------------------------------------------------------*/
|
||||||
|
|
||||||
static int __init usbnet_init(void)
|
static int __init usbnet_init(void)
|
||||||
{
|
{
|
||||||
// compiler should optimize these out
|
/* compiler should optimize this out */
|
||||||
BUG_ON (sizeof (((struct sk_buff *)0)->cb)
|
BUG_ON (sizeof (((struct sk_buff *)0)->cb)
|
||||||
< sizeof (struct skb_data));
|
< sizeof (struct skb_data));
|
||||||
|
|
||||||
random_ether_addr(node_id);
|
random_ether_addr(node_id);
|
||||||
|
return 0;
|
||||||
return usb_register(&usbnet_driver);
|
|
||||||
}
|
}
|
||||||
module_init(usbnet_init);
|
module_init(usbnet_init);
|
||||||
|
|
||||||
static void __exit usbnet_exit(void)
|
static void __exit usbnet_exit(void)
|
||||||
{
|
{
|
||||||
usb_deregister(&usbnet_driver);
|
|
||||||
}
|
}
|
||||||
module_exit(usbnet_exit);
|
module_exit(usbnet_exit);
|
||||||
|
|
||||||
MODULE_AUTHOR("David Brownell");
|
MODULE_AUTHOR("David Brownell");
|
||||||
MODULE_DESCRIPTION("USB Host-to-Host Link Drivers (numerous vendors)");
|
MODULE_DESCRIPTION("USB network driver framework");
|
||||||
MODULE_LICENSE("GPL");
|
MODULE_LICENSE("GPL");
|
||||||
|
Loading…
Reference in New Issue
Block a user