summaryrefslogtreecommitdiff
path: root/ANDROID_3.4.5/drivers/net/usb/cdc-phonet.c
diff options
context:
space:
mode:
authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/net/usb/cdc-phonet.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
downloadFOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/net/usb/cdc-phonet.c')
-rw-r--r--ANDROID_3.4.5/drivers/net/usb/cdc-phonet.c466
1 files changed, 0 insertions, 466 deletions
diff --git a/ANDROID_3.4.5/drivers/net/usb/cdc-phonet.c b/ANDROID_3.4.5/drivers/net/usb/cdc-phonet.c
deleted file mode 100644
index 3e41b00c..00000000
--- a/ANDROID_3.4.5/drivers/net/usb/cdc-phonet.c
+++ /dev/null
@@ -1,466 +0,0 @@
-/*
- * phonet.c -- USB CDC Phonet host driver
- *
- * Copyright (C) 2008-2009 Nokia Corporation. All rights reserved.
- *
- * Author: Rémi Denis-Courmont
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * 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., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/gfp.h>
-#include <linux/usb.h>
-#include <linux/usb/cdc.h>
-#include <linux/netdevice.h>
-#include <linux/if_arp.h>
-#include <linux/if_phonet.h>
-#include <linux/phonet.h>
-
-#define PN_MEDIA_USB 0x1B
-
-static const unsigned rxq_size = 17;
-
-struct usbpn_dev {
- struct net_device *dev;
-
- struct usb_interface *intf, *data_intf;
- struct usb_device *usb;
- unsigned int tx_pipe, rx_pipe;
- u8 active_setting;
- u8 disconnected;
-
- unsigned tx_queue;
- spinlock_t tx_lock;
-
- spinlock_t rx_lock;
- struct sk_buff *rx_skb;
- struct urb *urbs[0];
-};
-
-static void tx_complete(struct urb *req);
-static void rx_complete(struct urb *req);
-
-/*
- * Network device callbacks
- */
-static netdev_tx_t usbpn_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct usbpn_dev *pnd = netdev_priv(dev);
- struct urb *req = NULL;
- unsigned long flags;
- int err;
-
- if (skb->protocol != htons(ETH_P_PHONET))
- goto drop;
-
- req = usb_alloc_urb(0, GFP_ATOMIC);
- if (!req)
- goto drop;
- usb_fill_bulk_urb(req, pnd->usb, pnd->tx_pipe, skb->data, skb->len,
- tx_complete, skb);
- req->transfer_flags = URB_ZERO_PACKET;
- err = usb_submit_urb(req, GFP_ATOMIC);
- if (err) {
- usb_free_urb(req);
- goto drop;
- }
-
- spin_lock_irqsave(&pnd->tx_lock, flags);
- pnd->tx_queue++;
- if (pnd->tx_queue >= dev->tx_queue_len)
- netif_stop_queue(dev);
- spin_unlock_irqrestore(&pnd->tx_lock, flags);
- return NETDEV_TX_OK;
-
-drop:
- dev_kfree_skb(skb);
- dev->stats.tx_dropped++;
- return NETDEV_TX_OK;
-}
-
-static void tx_complete(struct urb *req)
-{
- struct sk_buff *skb = req->context;
- struct net_device *dev = skb->dev;
- struct usbpn_dev *pnd = netdev_priv(dev);
- int status = req->status;
-
- switch (status) {
- case 0:
- dev->stats.tx_bytes += skb->len;
- break;
-
- case -ENOENT:
- case -ECONNRESET:
- case -ESHUTDOWN:
- dev->stats.tx_aborted_errors++;
- default:
- dev->stats.tx_errors++;
- dev_dbg(&dev->dev, "TX error (%d)\n", status);
- }
- dev->stats.tx_packets++;
-
- spin_lock(&pnd->tx_lock);
- pnd->tx_queue--;
- netif_wake_queue(dev);
- spin_unlock(&pnd->tx_lock);
-
- dev_kfree_skb_any(skb);
- usb_free_urb(req);
-}
-
-static int rx_submit(struct usbpn_dev *pnd, struct urb *req, gfp_t gfp_flags)
-{
- struct net_device *dev = pnd->dev;
- struct page *page;
- int err;
-
- page = alloc_page(gfp_flags);
- if (!page)
- return -ENOMEM;
-
- usb_fill_bulk_urb(req, pnd->usb, pnd->rx_pipe, page_address(page),
- PAGE_SIZE, rx_complete, dev);
- req->transfer_flags = 0;
- err = usb_submit_urb(req, gfp_flags);
- if (unlikely(err)) {
- dev_dbg(&dev->dev, "RX submit error (%d)\n", err);
- put_page(page);
- }
- return err;
-}
-
-static void rx_complete(struct urb *req)
-{
- struct net_device *dev = req->context;
- struct usbpn_dev *pnd = netdev_priv(dev);
- struct page *page = virt_to_page(req->transfer_buffer);
- struct sk_buff *skb;
- unsigned long flags;
- int status = req->status;
-
- switch (status) {
- case 0:
- spin_lock_irqsave(&pnd->rx_lock, flags);
- skb = pnd->rx_skb;
- if (!skb) {
- skb = pnd->rx_skb = netdev_alloc_skb(dev, 12);
- if (likely(skb)) {
- /* Can't use pskb_pull() on page in IRQ */
- memcpy(skb_put(skb, 1), page_address(page), 1);
- skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
- page, 1, req->actual_length,
- PAGE_SIZE);
- page = NULL;
- }
- } else {
- skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
- page, 0, req->actual_length,
- PAGE_SIZE);
- page = NULL;
- }
- if (req->actual_length < PAGE_SIZE)
- pnd->rx_skb = NULL; /* Last fragment */
- else
- skb = NULL;
- spin_unlock_irqrestore(&pnd->rx_lock, flags);
- if (skb) {
- skb->protocol = htons(ETH_P_PHONET);
- skb_reset_mac_header(skb);
- __skb_pull(skb, 1);
- skb->dev = dev;
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += skb->len;
-
- netif_rx(skb);
- }
- goto resubmit;
-
- case -ENOENT:
- case -ECONNRESET:
- case -ESHUTDOWN:
- req = NULL;
- break;
-
- case -EOVERFLOW:
- dev->stats.rx_over_errors++;
- dev_dbg(&dev->dev, "RX overflow\n");
- break;
-
- case -EILSEQ:
- dev->stats.rx_crc_errors++;
- break;
- }
-
- dev->stats.rx_errors++;
-resubmit:
- if (page)
- put_page(page);
- if (req)
- rx_submit(pnd, req, GFP_ATOMIC | __GFP_COLD);
-}
-
-static int usbpn_close(struct net_device *dev);
-
-static int usbpn_open(struct net_device *dev)
-{
- struct usbpn_dev *pnd = netdev_priv(dev);
- int err;
- unsigned i;
- unsigned num = pnd->data_intf->cur_altsetting->desc.bInterfaceNumber;
-
- err = usb_set_interface(pnd->usb, num, pnd->active_setting);
- if (err)
- return err;
-
- for (i = 0; i < rxq_size; i++) {
- struct urb *req = usb_alloc_urb(0, GFP_KERNEL);
-
- if (!req || rx_submit(pnd, req, GFP_KERNEL | __GFP_COLD)) {
- usbpn_close(dev);
- return -ENOMEM;
- }
- pnd->urbs[i] = req;
- }
-
- netif_wake_queue(dev);
- return 0;
-}
-
-static int usbpn_close(struct net_device *dev)
-{
- struct usbpn_dev *pnd = netdev_priv(dev);
- unsigned i;
- unsigned num = pnd->data_intf->cur_altsetting->desc.bInterfaceNumber;
-
- netif_stop_queue(dev);
-
- for (i = 0; i < rxq_size; i++) {
- struct urb *req = pnd->urbs[i];
-
- if (!req)
- continue;
- usb_kill_urb(req);
- usb_free_urb(req);
- pnd->urbs[i] = NULL;
- }
-
- return usb_set_interface(pnd->usb, num, !pnd->active_setting);
-}
-
-static int usbpn_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
- struct if_phonet_req *req = (struct if_phonet_req *)ifr;
-
- switch (cmd) {
- case SIOCPNGAUTOCONF:
- req->ifr_phonet_autoconf.device = PN_DEV_PC;
- return 0;
- }
- return -ENOIOCTLCMD;
-}
-
-static int usbpn_set_mtu(struct net_device *dev, int new_mtu)
-{
- if ((new_mtu < PHONET_MIN_MTU) || (new_mtu > PHONET_MAX_MTU))
- return -EINVAL;
-
- dev->mtu = new_mtu;
- return 0;
-}
-
-static const struct net_device_ops usbpn_ops = {
- .ndo_open = usbpn_open,
- .ndo_stop = usbpn_close,
- .ndo_start_xmit = usbpn_xmit,
- .ndo_do_ioctl = usbpn_ioctl,
- .ndo_change_mtu = usbpn_set_mtu,
-};
-
-static void usbpn_setup(struct net_device *dev)
-{
- dev->features = 0;
- dev->netdev_ops = &usbpn_ops,
- dev->header_ops = &phonet_header_ops;
- dev->type = ARPHRD_PHONET;
- dev->flags = IFF_POINTOPOINT | IFF_NOARP;
- dev->mtu = PHONET_MAX_MTU;
- dev->hard_header_len = 1;
- dev->dev_addr[0] = PN_MEDIA_USB;
- dev->addr_len = 1;
- dev->tx_queue_len = 3;
-
- dev->destructor = free_netdev;
-}
-
-/*
- * USB driver callbacks
- */
-static struct usb_device_id usbpn_ids[] = {
- {
- .match_flags = USB_DEVICE_ID_MATCH_VENDOR
- | USB_DEVICE_ID_MATCH_INT_CLASS
- | USB_DEVICE_ID_MATCH_INT_SUBCLASS,
- .idVendor = 0x0421, /* Nokia */
- .bInterfaceClass = USB_CLASS_COMM,
- .bInterfaceSubClass = 0xFE,
- },
- { },
-};
-
-MODULE_DEVICE_TABLE(usb, usbpn_ids);
-
-static struct usb_driver usbpn_driver;
-
-int usbpn_probe(struct usb_interface *intf, const struct usb_device_id *id)
-{
- static const char ifname[] = "usbpn%d";
- const struct usb_cdc_union_desc *union_header = NULL;
- const struct usb_host_interface *data_desc;
- struct usb_interface *data_intf;
- struct usb_device *usbdev = interface_to_usbdev(intf);
- struct net_device *dev;
- struct usbpn_dev *pnd;
- u8 *data;
- int phonet = 0;
- int len, err;
-
- data = intf->altsetting->extra;
- len = intf->altsetting->extralen;
- while (len >= 3) {
- u8 dlen = data[0];
- if (dlen < 3)
- return -EINVAL;
-
- /* bDescriptorType */
- if (data[1] == USB_DT_CS_INTERFACE) {
- /* bDescriptorSubType */
- switch (data[2]) {
- case USB_CDC_UNION_TYPE:
- if (union_header || dlen < 5)
- break;
- union_header =
- (struct usb_cdc_union_desc *)data;
- break;
- case 0xAB:
- phonet = 1;
- break;
- }
- }
- data += dlen;
- len -= dlen;
- }
-
- if (!union_header || !phonet)
- return -EINVAL;
-
- data_intf = usb_ifnum_to_if(usbdev, union_header->bSlaveInterface0);
- if (data_intf == NULL)
- return -ENODEV;
- /* Data interface has one inactive and one active setting */
- if (data_intf->num_altsetting != 2)
- return -EINVAL;
- if (data_intf->altsetting[0].desc.bNumEndpoints == 0 &&
- data_intf->altsetting[1].desc.bNumEndpoints == 2)
- data_desc = data_intf->altsetting + 1;
- else
- if (data_intf->altsetting[0].desc.bNumEndpoints == 2 &&
- data_intf->altsetting[1].desc.bNumEndpoints == 0)
- data_desc = data_intf->altsetting;
- else
- return -EINVAL;
-
- dev = alloc_netdev(sizeof(*pnd) + sizeof(pnd->urbs[0]) * rxq_size,
- ifname, usbpn_setup);
- if (!dev)
- return -ENOMEM;
-
- pnd = netdev_priv(dev);
- SET_NETDEV_DEV(dev, &intf->dev);
-
- pnd->dev = dev;
- pnd->usb = usb_get_dev(usbdev);
- pnd->intf = intf;
- pnd->data_intf = data_intf;
- spin_lock_init(&pnd->tx_lock);
- spin_lock_init(&pnd->rx_lock);
- /* Endpoints */
- if (usb_pipein(data_desc->endpoint[0].desc.bEndpointAddress)) {
- pnd->rx_pipe = usb_rcvbulkpipe(usbdev,
- data_desc->endpoint[0].desc.bEndpointAddress);
- pnd->tx_pipe = usb_sndbulkpipe(usbdev,
- data_desc->endpoint[1].desc.bEndpointAddress);
- } else {
- pnd->rx_pipe = usb_rcvbulkpipe(usbdev,
- data_desc->endpoint[1].desc.bEndpointAddress);
- pnd->tx_pipe = usb_sndbulkpipe(usbdev,
- data_desc->endpoint[0].desc.bEndpointAddress);
- }
- pnd->active_setting = data_desc - data_intf->altsetting;
-
- err = usb_driver_claim_interface(&usbpn_driver, data_intf, pnd);
- if (err)
- goto out;
-
- /* Force inactive mode until the network device is brought UP */
- usb_set_interface(usbdev, union_header->bSlaveInterface0,
- !pnd->active_setting);
- usb_set_intfdata(intf, pnd);
-
- err = register_netdev(dev);
- if (err) {
- usb_driver_release_interface(&usbpn_driver, data_intf);
- goto out;
- }
-
- dev_dbg(&dev->dev, "USB CDC Phonet device found\n");
- return 0;
-
-out:
- usb_set_intfdata(intf, NULL);
- free_netdev(dev);
- return err;
-}
-
-static void usbpn_disconnect(struct usb_interface *intf)
-{
- struct usbpn_dev *pnd = usb_get_intfdata(intf);
- struct usb_device *usb = pnd->usb;
-
- if (pnd->disconnected)
- return;
-
- pnd->disconnected = 1;
- usb_driver_release_interface(&usbpn_driver,
- (pnd->intf == intf) ? pnd->data_intf : pnd->intf);
- unregister_netdev(pnd->dev);
- usb_put_dev(usb);
-}
-
-static struct usb_driver usbpn_driver = {
- .name = "cdc_phonet",
- .probe = usbpn_probe,
- .disconnect = usbpn_disconnect,
- .id_table = usbpn_ids,
-};
-
-module_usb_driver(usbpn_driver);
-
-MODULE_AUTHOR("Remi Denis-Courmont");
-MODULE_DESCRIPTION("USB CDC Phonet host interface");
-MODULE_LICENSE("GPL");