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author | Jeff Garzik <jeff@garzik.org> | 2007-05-10 03:31:55 +0200 |
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committer | Jeff Garzik <jeff@garzik.org> | 2007-05-10 03:31:55 +0200 |
commit | 5b2fc499917e5897a13add780e181b4cef197072 (patch) | |
tree | 1a1ba52c0c2a7ce9843875cdd713d75d37c4ea1b /drivers/usb/net/gl620a.c | |
parent | Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6 (diff) | |
download | linux-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.c | 245 |
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"); - |