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authorJeff Garzik <jeff@garzik.org>2007-05-10 03:31:55 +0200
committerJeff Garzik <jeff@garzik.org>2007-05-10 03:31:55 +0200
commit5b2fc499917e5897a13add780e181b4cef197072 (patch)
tree1a1ba52c0c2a7ce9843875cdd713d75d37c4ea1b /drivers/usb/net/gl620a.c
parentMerge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6 (diff)
downloadlinux-5b2fc499917e5897a13add780e181b4cef197072.tar.xz
linux-5b2fc499917e5897a13add780e181b4cef197072.zip
Move USB network drivers to drivers/net/usb.
It is preferable to group drivers by usage (net, scsi, ATA, ...) than by bus. When reviewing drivers, the [PCI|USB|PCMCIA|...] maintainer is probably less qualified on networking issues than a networking maintainer. Also, from a practical standpoint, chips often appear on multiple buses, which is why we do not put drivers into drivers/pci/net. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/usb/net/gl620a.c')
-rw-r--r--drivers/usb/net/gl620a.c245
1 files changed, 0 insertions, 245 deletions
diff --git a/drivers/usb/net/gl620a.c b/drivers/usb/net/gl620a.c
deleted file mode 100644
index 031cf5ca4dbb..000000000000
--- a/drivers/usb/net/gl620a.c
+++ /dev/null
@@ -1,245 +0,0 @@
-/*
- * GeneSys GL620USB-A based links
- * Copyright (C) 2001 by Jiun-Jie Huang <huangjj@genesyslogic.com.tw>
- * Copyright (C) 2001 by Stanislav Brabec <utx@penguin.cz>
- *
- * 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/module.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"
-
-
-/*
- * GeneSys GL620USB-A (www.genesyslogic.com.tw)
- *
- * ... should partially interop with the Win32 driver for this hardware.
- * The GeneSys docs imply there's some NDIS issue motivating this framing.
- *
- * Some info from GeneSys:
- * - GL620USB-A is full duplex; GL620USB is only half duplex for bulk.
- * (Some cables, like the BAFO-100c, use the half duplex version.)
- * - For the full duplex model, the low bit of the version code says
- * which side is which ("left/right").
- * - For the half duplex type, a control/interrupt handshake settles
- * the transfer direction. (That's disabled here, partially coded.)
- * A control URB would block until other side writes an interrupt.
- *
- * Original code from Jiun-Jie Huang <huangjj@genesyslogic.com.tw>
- * and merged into "usbnet" by Stanislav Brabec <utx@penguin.cz>.
- */
-
-// control msg write command
-#define GENELINK_CONNECT_WRITE 0xF0
-// interrupt pipe index
-#define GENELINK_INTERRUPT_PIPE 0x03
-// interrupt read buffer size
-#define INTERRUPT_BUFSIZE 0x08
-// interrupt pipe interval value
-#define GENELINK_INTERRUPT_INTERVAL 0x10
-// max transmit packet number per transmit
-#define GL_MAX_TRANSMIT_PACKETS 32
-// max packet length
-#define GL_MAX_PACKET_LEN 1514
-// max receive buffer size
-#define GL_RCV_BUF_SIZE \
- (((GL_MAX_PACKET_LEN + 4) * GL_MAX_TRANSMIT_PACKETS) + 4)
-
-struct gl_packet {
- __le32 packet_length;
- char packet_data [1];
-};
-
-struct gl_header {
- __le32 packet_count;
- struct gl_packet packets;
-};
-
-static int genelink_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
-{
- struct gl_header *header;
- struct gl_packet *packet;
- struct sk_buff *gl_skb;
- u32 size;
- u32 count;
-
- header = (struct gl_header *) skb->data;
-
- // get the packet count of the received skb
- count = le32_to_cpu(header->packet_count);
- if (count > GL_MAX_TRANSMIT_PACKETS) {
- dbg("genelink: invalid received packet count %u", count);
- return 0;
- }
-
- // set the current packet pointer to the first packet
- packet = &header->packets;
-
- // decrement the length for the packet count size 4 bytes
- skb_pull(skb, 4);
-
- while (count > 1) {
- // get the packet length
- size = le32_to_cpu(packet->packet_length);
-
- // this may be a broken packet
- if (size > GL_MAX_PACKET_LEN) {
- dbg("genelink: invalid rx length %d", size);
- return 0;
- }
-
- // allocate the skb for the individual packet
- gl_skb = alloc_skb(size, GFP_ATOMIC);
- if (gl_skb) {
-
- // copy the packet data to the new skb
- memcpy(skb_put(gl_skb, size),
- packet->packet_data, size);
- usbnet_skb_return(dev, gl_skb);
- }
-
- // advance to the next packet
- packet = (struct gl_packet *)&packet->packet_data[size];
- count--;
-
- // shift the data pointer to the next gl_packet
- skb_pull(skb, size + 4);
- }
-
- // skip the packet length field 4 bytes
- skb_pull(skb, 4);
-
- if (skb->len > GL_MAX_PACKET_LEN) {
- dbg("genelink: invalid rx length %d", skb->len);
- return 0;
- }
- return 1;
-}
-
-static struct sk_buff *
-genelink_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
-{
- int padlen;
- int length = skb->len;
- int headroom = skb_headroom(skb);
- int tailroom = skb_tailroom(skb);
- __le32 *packet_count;
- __le32 *packet_len;
-
- // FIXME: magic numbers, bleech
- padlen = ((skb->len + (4 + 4*1)) % 64) ? 0 : 1;
-
- if ((!skb_cloned(skb))
- && ((headroom + tailroom) >= (padlen + (4 + 4*1)))) {
- if ((headroom < (4 + 4*1)) || (tailroom < padlen)) {
- skb->data = memmove(skb->head + (4 + 4*1),
- skb->data, skb->len);
- skb_set_tail_pointer(skb, skb->len);
- }
- } else {
- struct sk_buff *skb2;
- skb2 = skb_copy_expand(skb, (4 + 4*1) , padlen, flags);
- dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
- }
-
- // attach the packet count to the header
- packet_count = (__le32 *) skb_push(skb, (4 + 4*1));
- packet_len = packet_count + 1;
-
- *packet_count = cpu_to_le32(1);
- *packet_len = cpu_to_le32(length);
-
- // add padding byte
- if ((skb->len % dev->maxpacket) == 0)
- skb_put(skb, 1);
-
- return skb;
-}
-
-static int genelink_bind(struct usbnet *dev, struct usb_interface *intf)
-{
- dev->hard_mtu = GL_RCV_BUF_SIZE;
- dev->net->hard_header_len += 4;
- dev->in = usb_rcvbulkpipe(dev->udev, dev->driver_info->in);
- dev->out = usb_sndbulkpipe(dev->udev, dev->driver_info->out);
- return 0;
-}
-
-static const struct driver_info genelink_info = {
- .description = "Genesys GeneLink",
- .flags = FLAG_FRAMING_GL | FLAG_NO_SETINT,
- .bind = genelink_bind,
- .rx_fixup = genelink_rx_fixup,
- .tx_fixup = genelink_tx_fixup,
-
- .in = 1, .out = 2,
-
-#ifdef GENELINK_ACK
- .check_connect =genelink_check_connect,
-#endif
-};
-
-static const struct usb_device_id products [] = {
-
-{
- USB_DEVICE(0x05e3, 0x0502), // GL620USB-A
- .driver_info = (unsigned long) &genelink_info,
-},
- /* NOT: USB_DEVICE(0x05e3, 0x0501), // GL620USB
- * that's half duplex, not currently supported
- */
- { }, // END
-};
-MODULE_DEVICE_TABLE(usb, products);
-
-static struct usb_driver gl620a_driver = {
- .name = "gl620a",
- .id_table = products,
- .probe = usbnet_probe,
- .disconnect = usbnet_disconnect,
- .suspend = usbnet_suspend,
- .resume = usbnet_resume,
-};
-
-static int __init usbnet_init(void)
-{
- return usb_register(&gl620a_driver);
-}
-module_init(usbnet_init);
-
-static void __exit usbnet_exit(void)
-{
- usb_deregister(&gl620a_driver);
-}
-module_exit(usbnet_exit);
-
-MODULE_AUTHOR("Jiun-Jie Huang");
-MODULE_DESCRIPTION("GL620-USB-A Host-to-Host Link cables");
-MODULE_LICENSE("GPL");
-