1016 lines
22 KiB
C
1016 lines
22 KiB
C
/*
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* Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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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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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/etherdevice.h>
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#include <asm/byteorder.h>
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#include <linux/ip.h>
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#include <linux/ipv6.h>
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#include <linux/udp.h>
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#include <linux/in.h>
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#include "gdm_wimax.h"
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#include "hci.h"
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#include "wm_ioctl.h"
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#include "netlink_k.h"
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#define gdm_wimax_send(n, d, l) \
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(n->phy_dev->send_func)(n->phy_dev->priv_dev, d, l, NULL, NULL)
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#define gdm_wimax_send_with_cb(n, d, l, c, b) \
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(n->phy_dev->send_func)(n->phy_dev->priv_dev, d, l, c, b)
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#define gdm_wimax_rcv_with_cb(n, c, b) \
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(n->phy_dev->rcv_func)(n->phy_dev->priv_dev, c, b)
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#define EVT_MAX_SIZE 2048
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struct evt_entry {
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struct list_head list;
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struct net_device *dev;
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char evt_data[EVT_MAX_SIZE];
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int size;
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};
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static void __gdm_wimax_event_send(struct work_struct *work);
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static inline struct evt_entry *alloc_event_entry(void);
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static inline void free_event_entry(struct evt_entry *e);
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static struct evt_entry *get_event_entry(void);
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static void put_event_entry(struct evt_entry *e);
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static struct {
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int ref_cnt;
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struct sock *sock;
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struct list_head evtq;
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spinlock_t evt_lock;
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struct list_head freeq;
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struct work_struct ws;
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} wm_event;
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static u8 gdm_wimax_macaddr[6] = {0x00, 0x0a, 0x3b, 0xf0, 0x01, 0x30};
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static void gdm_wimax_ind_fsm_update(struct net_device *dev, struct fsm_s *fsm);
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static void gdm_wimax_ind_if_updown(struct net_device *dev, int if_up);
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#if defined(DEBUG_SDU)
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static void printk_hex(u8 *buf, u32 size)
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{
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int i;
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for (i = 0; i < size; i++) {
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if (i && i % 16 == 0)
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printk(KERN_DEBUG "\n%02x ", *buf++);
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else
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printk(KERN_DEBUG "%02x ", *buf++);
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}
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printk(KERN_DEBUG "\n");
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}
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static const char *get_protocol_name(u16 protocol)
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{
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static char buf[32];
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const char *name = "-";
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switch (protocol) {
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case ETH_P_ARP:
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name = "ARP";
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break;
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case ETH_P_IP:
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name = "IP";
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break;
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case ETH_P_IPV6:
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name = "IPv6";
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break;
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}
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sprintf(buf, "0x%04x(%s)", protocol, name);
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return buf;
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}
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static const char *get_ip_protocol_name(u8 ip_protocol)
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{
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static char buf[32];
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const char *name = "-";
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switch (ip_protocol) {
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case IPPROTO_TCP:
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name = "TCP";
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break;
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case IPPROTO_UDP:
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name = "UDP";
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break;
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case IPPROTO_ICMP:
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name = "ICMP";
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break;
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}
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sprintf(buf, "%u(%s)", ip_protocol, name);
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return buf;
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}
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static const char *get_port_name(u16 port)
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{
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static char buf[32];
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const char *name = "-";
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switch (port) {
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case 67:
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name = "DHCP-Server";
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break;
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case 68:
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name = "DHCP-Client";
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break;
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case 69:
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name = "TFTP";
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break;
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}
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sprintf(buf, "%u(%s)", port, name);
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return buf;
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}
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static void dump_eth_packet(const char *title, u8 *data, int len)
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{
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struct iphdr *ih = NULL;
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struct udphdr *uh = NULL;
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u16 protocol = 0;
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u8 ip_protocol = 0;
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u16 port = 0;
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protocol = (data[12]<<8) | data[13];
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ih = (struct iphdr *) (data+ETH_HLEN);
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if (protocol == ETH_P_IP) {
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uh = (struct udphdr *) ((char *)ih + sizeof(struct iphdr));
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ip_protocol = ih->protocol;
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port = ntohs(uh->dest);
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} else if (protocol == ETH_P_IPV6) {
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struct ipv6hdr *i6h = (struct ipv6hdr *) data;
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uh = (struct udphdr *) ((char *)i6h + sizeof(struct ipv6hdr));
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ip_protocol = i6h->nexthdr;
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port = ntohs(uh->dest);
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}
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printk(KERN_DEBUG "[%s] len=%d, %s, %s, %s\n",
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title, len,
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get_protocol_name(protocol),
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get_ip_protocol_name(ip_protocol),
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get_port_name(port));
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if (!(data[0] == 0xff && data[1] == 0xff)) {
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if (protocol == ETH_P_IP) {
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printk(KERN_DEBUG " src=%pI4\n", &ih->saddr);
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} else if (protocol == ETH_P_IPV6) {
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printk(KERN_DEBUG " src=%pI6\n", &ih->saddr);
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}
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}
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#if (DUMP_PACKET & DUMP_SDU_ALL)
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printk_hex(data, len);
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#else
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#if (DUMP_PACKET & DUMP_SDU_ARP)
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if (protocol == ETH_P_ARP)
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printk_hex(data, len);
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#endif
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#if (DUMP_PACKET & DUMP_SDU_IP)
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if (protocol == ETH_P_IP || protocol == ETH_P_IPV6)
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printk_hex(data, len);
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#else
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#if (DUMP_PACKET & DUMP_SDU_IP_TCP)
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if (ip_protocol == IPPROTO_TCP)
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printk_hex(data, len);
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#endif
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#if (DUMP_PACKET & DUMP_SDU_IP_UDP)
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if (ip_protocol == IPPROTO_UDP)
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printk_hex(data, len);
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#endif
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#if (DUMP_PACKET & DUMP_SDU_IP_ICMP)
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if (ip_protocol == IPPROTO_ICMP)
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printk_hex(data, len);
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#endif
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#endif
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#endif
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}
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#endif
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static inline int gdm_wimax_header(struct sk_buff **pskb)
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{
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u16 buf[HCI_HEADER_SIZE / sizeof(u16)];
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struct sk_buff *skb = *pskb;
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int ret = 0;
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if (unlikely(skb_headroom(skb) < HCI_HEADER_SIZE)) {
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struct sk_buff *skb2;
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skb2 = skb_realloc_headroom(skb, HCI_HEADER_SIZE);
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if (skb2 == NULL)
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return -ENOMEM;
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if (skb->sk)
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skb_set_owner_w(skb2, skb->sk);
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kfree_skb(skb);
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skb = skb2;
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}
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skb_push(skb, HCI_HEADER_SIZE);
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buf[0] = H2B(WIMAX_TX_SDU);
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buf[1] = H2B(skb->len - HCI_HEADER_SIZE);
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memcpy(skb->data, buf, HCI_HEADER_SIZE);
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*pskb = skb;
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return ret;
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}
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static void gdm_wimax_event_rcv(struct net_device *dev, u16 type, void *msg,
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int len)
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{
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struct nic *nic = netdev_priv(dev);
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#if defined(DEBUG_HCI)
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u8 *buf = (u8 *) msg;
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u16 hci_cmd = (buf[0]<<8) | buf[1];
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u16 hci_len = (buf[2]<<8) | buf[3];
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printk(KERN_DEBUG "H=>D: 0x%04x(%d)\n", hci_cmd, hci_len);
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#endif
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gdm_wimax_send(nic, msg, len);
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}
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static int gdm_wimax_event_init(void)
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{
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if (!wm_event.ref_cnt) {
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wm_event.sock = netlink_init(NETLINK_WIMAX,
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gdm_wimax_event_rcv);
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if (wm_event.sock) {
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INIT_LIST_HEAD(&wm_event.evtq);
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INIT_LIST_HEAD(&wm_event.freeq);
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INIT_WORK(&wm_event.ws, __gdm_wimax_event_send);
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spin_lock_init(&wm_event.evt_lock);
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}
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}
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if (wm_event.sock) {
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wm_event.ref_cnt++;
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return 0;
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}
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pr_err("Creating WiMax Event netlink is failed\n");
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return -1;
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}
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static void gdm_wimax_event_exit(void)
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{
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if (wm_event.sock && --wm_event.ref_cnt == 0) {
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struct evt_entry *e, *temp;
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unsigned long flags;
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spin_lock_irqsave(&wm_event.evt_lock, flags);
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list_for_each_entry_safe(e, temp, &wm_event.evtq, list) {
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list_del(&e->list);
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free_event_entry(e);
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}
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list_for_each_entry_safe(e, temp, &wm_event.freeq, list) {
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list_del(&e->list);
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free_event_entry(e);
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}
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spin_unlock_irqrestore(&wm_event.evt_lock, flags);
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netlink_exit(wm_event.sock);
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wm_event.sock = NULL;
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}
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}
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static inline struct evt_entry *alloc_event_entry(void)
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{
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return kmalloc(sizeof(struct evt_entry), GFP_ATOMIC);
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}
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static inline void free_event_entry(struct evt_entry *e)
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{
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kfree(e);
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}
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static struct evt_entry *get_event_entry(void)
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{
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struct evt_entry *e;
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if (list_empty(&wm_event.freeq))
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e = alloc_event_entry();
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else {
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e = list_entry(wm_event.freeq.next, struct evt_entry, list);
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list_del(&e->list);
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}
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return e;
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}
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static void put_event_entry(struct evt_entry *e)
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{
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BUG_ON(!e);
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list_add_tail(&e->list, &wm_event.freeq);
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}
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static void __gdm_wimax_event_send(struct work_struct *work)
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{
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int idx;
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unsigned long flags;
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struct evt_entry *e;
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spin_lock_irqsave(&wm_event.evt_lock, flags);
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while (!list_empty(&wm_event.evtq)) {
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e = list_entry(wm_event.evtq.next, struct evt_entry, list);
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spin_unlock_irqrestore(&wm_event.evt_lock, flags);
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sscanf(e->dev->name, "wm%d", &idx);
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netlink_send(wm_event.sock, idx, 0, e->evt_data, e->size);
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spin_lock_irqsave(&wm_event.evt_lock, flags);
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list_del(&e->list);
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put_event_entry(e);
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}
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spin_unlock_irqrestore(&wm_event.evt_lock, flags);
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}
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static int gdm_wimax_event_send(struct net_device *dev, char *buf, int size)
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{
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struct evt_entry *e;
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unsigned long flags;
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#if defined(DEBUG_HCI)
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u16 hci_cmd = ((u8)buf[0]<<8) | (u8)buf[1];
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u16 hci_len = ((u8)buf[2]<<8) | (u8)buf[3];
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printk(KERN_DEBUG "D=>H: 0x%04x(%d)\n", hci_cmd, hci_len);
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#endif
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spin_lock_irqsave(&wm_event.evt_lock, flags);
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e = get_event_entry();
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if (!e) {
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netdev_err(dev, "%s: No memory for event\n", __func__);
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spin_unlock_irqrestore(&wm_event.evt_lock, flags);
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return -ENOMEM;
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}
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e->dev = dev;
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e->size = size;
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memcpy(e->evt_data, buf, size);
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list_add_tail(&e->list, &wm_event.evtq);
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spin_unlock_irqrestore(&wm_event.evt_lock, flags);
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schedule_work(&wm_event.ws);
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return 0;
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}
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static void tx_complete(void *arg)
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{
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struct nic *nic = arg;
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if (netif_queue_stopped(nic->netdev))
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netif_wake_queue(nic->netdev);
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}
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int gdm_wimax_send_tx(struct sk_buff *skb, struct net_device *dev)
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{
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int ret = 0;
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struct nic *nic = netdev_priv(dev);
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ret = gdm_wimax_send_with_cb(nic, skb->data, skb->len, tx_complete,
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nic);
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if (ret == -ENOSPC) {
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netif_stop_queue(dev);
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ret = 0;
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}
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if (ret) {
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skb_pull(skb, HCI_HEADER_SIZE);
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return ret;
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}
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nic->stats.tx_packets++;
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nic->stats.tx_bytes += skb->len - HCI_HEADER_SIZE;
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kfree_skb(skb);
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return ret;
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}
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static int gdm_wimax_tx(struct sk_buff *skb, struct net_device *dev)
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{
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int ret = 0;
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struct nic *nic = netdev_priv(dev);
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struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf;
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#if defined(DEBUG_SDU)
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dump_eth_packet("TX", skb->data, skb->len);
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#endif
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ret = gdm_wimax_header(&skb);
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if (ret < 0) {
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skb_pull(skb, HCI_HEADER_SIZE);
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return ret;
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}
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#if !defined(LOOPBACK_TEST)
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if (!fsm)
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netdev_err(dev, "ASSERTION ERROR: fsm is NULL!!\n");
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else if (fsm->m_status != M_CONNECTED) {
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netdev_emerg(dev, "ASSERTION ERROR: Device is NOT ready. status=%d\n",
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fsm->m_status);
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kfree_skb(skb);
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return 0;
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}
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#endif
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#if defined(CONFIG_WIMAX_GDM72XX_QOS)
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ret = gdm_qos_send_hci_pkt(skb, dev);
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#else
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ret = gdm_wimax_send_tx(skb, dev);
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#endif
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return ret;
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}
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static int gdm_wimax_set_config(struct net_device *dev, struct ifmap *map)
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{
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if (dev->flags & IFF_UP)
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return -EBUSY;
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return 0;
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}
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static void __gdm_wimax_set_mac_addr(struct net_device *dev, char *mac_addr)
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{
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u16 hci_pkt_buf[32 / sizeof(u16)];
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u8 *pkt = (u8 *) &hci_pkt_buf[0];
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struct nic *nic = netdev_priv(dev);
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/* Since dev is registered as a ethernet device,
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* ether_setup has made dev->addr_len to be ETH_ALEN
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*/
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memcpy(dev->dev_addr, mac_addr, dev->addr_len);
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/* Let lower layer know of this change by sending
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* SetInformation(MAC Address)
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*/
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hci_pkt_buf[0] = H2B(WIMAX_SET_INFO); /* cmd_evt */
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hci_pkt_buf[1] = H2B(8); /* size */
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pkt[4] = 0; /* T */
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pkt[5] = 6; /* L */
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memcpy(pkt + 6, mac_addr, dev->addr_len); /* V */
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gdm_wimax_send(nic, pkt, HCI_HEADER_SIZE + 8);
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}
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/* A driver function */
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static int gdm_wimax_set_mac_addr(struct net_device *dev, void *p)
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{
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struct sockaddr *addr = p;
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if (netif_running(dev))
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return -EBUSY;
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if (!is_valid_ether_addr(addr->sa_data))
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return -EADDRNOTAVAIL;
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__gdm_wimax_set_mac_addr(dev, addr->sa_data);
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return 0;
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}
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static struct net_device_stats *gdm_wimax_stats(struct net_device *dev)
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{
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struct nic *nic = netdev_priv(dev);
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return &nic->stats;
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}
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static int gdm_wimax_open(struct net_device *dev)
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{
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struct nic *nic = netdev_priv(dev);
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struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf;
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netif_start_queue(dev);
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if (fsm && fsm->m_status != M_INIT)
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gdm_wimax_ind_if_updown(dev, 1);
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return 0;
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}
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static int gdm_wimax_close(struct net_device *dev)
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{
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struct nic *nic = netdev_priv(dev);
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struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf;
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netif_stop_queue(dev);
|
|
|
|
if (fsm && fsm->m_status != M_INIT)
|
|
gdm_wimax_ind_if_updown(dev, 0);
|
|
return 0;
|
|
}
|
|
|
|
static void kdelete(void **buf)
|
|
{
|
|
if (buf && *buf) {
|
|
kfree(*buf);
|
|
*buf = NULL;
|
|
}
|
|
}
|
|
|
|
static int gdm_wimax_ioctl_get_data(struct data_s *dst, struct data_s *src)
|
|
{
|
|
int size;
|
|
|
|
size = dst->size < src->size ? dst->size : src->size;
|
|
|
|
dst->size = size;
|
|
if (src->size) {
|
|
if (!dst->buf)
|
|
return -EINVAL;
|
|
if (copy_to_user(dst->buf, src->buf, size))
|
|
return -EFAULT;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int gdm_wimax_ioctl_set_data(struct data_s *dst, struct data_s *src)
|
|
{
|
|
if (!src->size) {
|
|
dst->size = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (!src->buf)
|
|
return -EINVAL;
|
|
|
|
if (!(dst->buf && dst->size == src->size)) {
|
|
kdelete(&dst->buf);
|
|
dst->buf = kmalloc(src->size, GFP_KERNEL);
|
|
if (dst->buf == NULL)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (copy_from_user(dst->buf, src->buf, src->size)) {
|
|
kdelete(&dst->buf);
|
|
return -EFAULT;
|
|
}
|
|
dst->size = src->size;
|
|
return 0;
|
|
}
|
|
|
|
static void gdm_wimax_cleanup_ioctl(struct net_device *dev)
|
|
{
|
|
struct nic *nic = netdev_priv(dev);
|
|
int i;
|
|
|
|
for (i = 0; i < SIOC_DATA_MAX; i++)
|
|
kdelete(&nic->sdk_data[i].buf);
|
|
}
|
|
|
|
static void gdm_update_fsm(struct net_device *dev, struct fsm_s *new_fsm)
|
|
{
|
|
struct nic *nic = netdev_priv(dev);
|
|
struct fsm_s *cur_fsm =
|
|
(struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf;
|
|
|
|
if (!cur_fsm)
|
|
return;
|
|
|
|
if (cur_fsm->m_status != new_fsm->m_status ||
|
|
cur_fsm->c_status != new_fsm->c_status) {
|
|
if (new_fsm->m_status == M_CONNECTED)
|
|
netif_carrier_on(dev);
|
|
else if (cur_fsm->m_status == M_CONNECTED) {
|
|
netif_carrier_off(dev);
|
|
#if defined(CONFIG_WIMAX_GDM72XX_QOS)
|
|
gdm_qos_release_list(nic);
|
|
#endif
|
|
}
|
|
gdm_wimax_ind_fsm_update(dev, new_fsm);
|
|
}
|
|
}
|
|
|
|
static int gdm_wimax_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
|
|
{
|
|
struct wm_req_s *req = (struct wm_req_s *) ifr;
|
|
struct nic *nic = netdev_priv(dev);
|
|
int ret;
|
|
|
|
if (cmd != SIOCWMIOCTL)
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (req->cmd) {
|
|
case SIOCG_DATA:
|
|
case SIOCS_DATA:
|
|
if (req->data_id >= SIOC_DATA_MAX) {
|
|
netdev_err(dev, "%s error: data-index(%d) is invalid!!\n",
|
|
__func__, req->data_id);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
if (req->cmd == SIOCG_DATA) {
|
|
ret = gdm_wimax_ioctl_get_data(&req->data,
|
|
&nic->sdk_data[req->data_id]);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else if (req->cmd == SIOCS_DATA) {
|
|
if (req->data_id == SIOC_DATA_FSM) {
|
|
/*NOTE: gdm_update_fsm should be called
|
|
before gdm_wimax_ioctl_set_data is called*/
|
|
gdm_update_fsm(dev,
|
|
(struct fsm_s *) req->data.buf);
|
|
}
|
|
ret = gdm_wimax_ioctl_set_data(
|
|
&nic->sdk_data[req->data_id], &req->data);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
break;
|
|
default:
|
|
netdev_err(dev, "%s: %x unknown ioctl\n", __func__, cmd);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void gdm_wimax_prepare_device(struct net_device *dev)
|
|
{
|
|
struct nic *nic = netdev_priv(dev);
|
|
u16 buf[32 / sizeof(u16)];
|
|
struct hci_s *hci = (struct hci_s *) buf;
|
|
u16 len = 0;
|
|
u32 val = 0;
|
|
|
|
#define BIT_MULTI_CS 0
|
|
#define BIT_WIMAX 1
|
|
#define BIT_QOS 2
|
|
#define BIT_AGGREGATION 3
|
|
|
|
/* GetInformation mac address */
|
|
len = 0;
|
|
hci->cmd_evt = H2B(WIMAX_GET_INFO);
|
|
hci->data[len++] = TLV_T(T_MAC_ADDRESS);
|
|
hci->length = H2B(len);
|
|
gdm_wimax_send(nic, hci, HCI_HEADER_SIZE+len);
|
|
|
|
val = (1<<BIT_WIMAX) | (1<<BIT_MULTI_CS);
|
|
#if defined(CONFIG_WIMAX_GDM72XX_QOS)
|
|
val |= (1<<BIT_QOS);
|
|
#endif
|
|
#if defined(CONFIG_WIMAX_GDM72XX_WIMAX2)
|
|
val |= (1<<BIT_AGGREGATION);
|
|
#endif
|
|
|
|
/* Set capability */
|
|
len = 0;
|
|
hci->cmd_evt = H2B(WIMAX_SET_INFO);
|
|
hci->data[len++] = TLV_T(T_CAPABILITY);
|
|
hci->data[len++] = TLV_L(T_CAPABILITY);
|
|
val = DH2B(val);
|
|
memcpy(&hci->data[len], &val, TLV_L(T_CAPABILITY));
|
|
len += TLV_L(T_CAPABILITY);
|
|
hci->length = H2B(len);
|
|
gdm_wimax_send(nic, hci, HCI_HEADER_SIZE+len);
|
|
|
|
netdev_info(dev, "GDM WiMax Set CAPABILITY: 0x%08X\n", DB2H(val));
|
|
}
|
|
|
|
static int gdm_wimax_hci_get_tlv(u8 *buf, u8 *T, u16 *L, u8 **V)
|
|
{
|
|
#define __U82U16(b) ((u16)((u8 *)(b))[0] | ((u16)((u8 *)(b))[1] << 8))
|
|
int next_pos;
|
|
|
|
*T = buf[0];
|
|
if (buf[1] == 0x82) {
|
|
*L = B2H(__U82U16(&buf[2]));
|
|
next_pos = 1/*type*/+3/*len*/;
|
|
} else {
|
|
*L = buf[1];
|
|
next_pos = 1/*type*/+1/*len*/;
|
|
}
|
|
*V = &buf[next_pos];
|
|
|
|
next_pos += *L/*length of val*/;
|
|
return next_pos;
|
|
}
|
|
|
|
static int gdm_wimax_get_prepared_info(struct net_device *dev, char *buf,
|
|
int len)
|
|
{
|
|
u8 T, *V;
|
|
u16 L;
|
|
u16 cmd_evt, cmd_len;
|
|
int pos = HCI_HEADER_SIZE;
|
|
|
|
cmd_evt = B2H(*(u16 *)&buf[0]);
|
|
cmd_len = B2H(*(u16 *)&buf[2]);
|
|
|
|
if (len < cmd_len + HCI_HEADER_SIZE) {
|
|
netdev_err(dev, "%s: invalid length [%d/%d]\n", __func__,
|
|
cmd_len + HCI_HEADER_SIZE, len);
|
|
return -1;
|
|
}
|
|
|
|
if (cmd_evt == WIMAX_GET_INFO_RESULT) {
|
|
if (cmd_len < 2) {
|
|
netdev_err(dev, "%s: len is too short [%x/%d]\n",
|
|
__func__, cmd_evt, len);
|
|
return -1;
|
|
}
|
|
|
|
pos += gdm_wimax_hci_get_tlv(&buf[pos], &T, &L, &V);
|
|
if (T == TLV_T(T_MAC_ADDRESS)) {
|
|
if (L != dev->addr_len) {
|
|
netdev_err(dev,
|
|
"%s Invalid inofrmation result T/L [%x/%d]\n",
|
|
__func__, T, L);
|
|
return -1;
|
|
}
|
|
netdev_info(dev, "MAC change [%pM]->[%pM]\n",
|
|
dev->dev_addr, V);
|
|
memcpy(dev->dev_addr, V, dev->addr_len);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
gdm_wimax_event_send(dev, buf, len);
|
|
return 0;
|
|
}
|
|
|
|
static void gdm_wimax_netif_rx(struct net_device *dev, char *buf, int len)
|
|
{
|
|
struct nic *nic = netdev_priv(dev);
|
|
struct sk_buff *skb;
|
|
int ret;
|
|
|
|
#if defined(DEBUG_SDU)
|
|
dump_eth_packet("RX", buf, len);
|
|
#endif
|
|
|
|
skb = dev_alloc_skb(len + 2);
|
|
if (!skb) {
|
|
netdev_err(dev, "%s: dev_alloc_skb failed!\n", __func__);
|
|
return;
|
|
}
|
|
skb_reserve(skb, 2);
|
|
|
|
nic->stats.rx_packets++;
|
|
nic->stats.rx_bytes += len;
|
|
|
|
memcpy(skb_put(skb, len), buf, len);
|
|
|
|
skb->dev = dev;
|
|
skb->protocol = eth_type_trans(skb, dev); /* what will happen? */
|
|
|
|
ret = in_interrupt() ? netif_rx(skb) : netif_rx_ni(skb);
|
|
if (ret == NET_RX_DROP)
|
|
netdev_err(dev, "%s skb dropped\n", __func__);
|
|
}
|
|
|
|
static void gdm_wimax_transmit_aggr_pkt(struct net_device *dev, char *buf,
|
|
int len)
|
|
{
|
|
#define HCI_PADDING_BYTE 4
|
|
#define HCI_RESERVED_BYTE 4
|
|
struct hci_s *hci;
|
|
int length;
|
|
|
|
while (len > 0) {
|
|
hci = (struct hci_s *) buf;
|
|
|
|
if (B2H(hci->cmd_evt) != WIMAX_RX_SDU) {
|
|
netdev_err(dev, "Wrong cmd_evt(0x%04X)\n",
|
|
B2H(hci->cmd_evt));
|
|
break;
|
|
}
|
|
|
|
length = B2H(hci->length);
|
|
gdm_wimax_netif_rx(dev, hci->data, length);
|
|
|
|
if (length & 0x3) {
|
|
/* Add padding size */
|
|
length += HCI_PADDING_BYTE - (length & 0x3);
|
|
}
|
|
|
|
length += HCI_HEADER_SIZE + HCI_RESERVED_BYTE;
|
|
len -= length;
|
|
buf += length;
|
|
}
|
|
}
|
|
|
|
static void gdm_wimax_transmit_pkt(struct net_device *dev, char *buf, int len)
|
|
{
|
|
#if defined(CONFIG_WIMAX_GDM72XX_QOS)
|
|
struct nic *nic = netdev_priv(dev);
|
|
#endif
|
|
u16 cmd_evt, cmd_len;
|
|
|
|
/* This code is added for certain rx packet to be ignored. */
|
|
if (len == 0)
|
|
return;
|
|
|
|
cmd_evt = B2H(*(u16 *)&buf[0]);
|
|
cmd_len = B2H(*(u16 *)&buf[2]);
|
|
|
|
if (len < cmd_len + HCI_HEADER_SIZE) {
|
|
if (len)
|
|
netdev_err(dev, "%s: invalid length [%d/%d]\n",
|
|
__func__, cmd_len + HCI_HEADER_SIZE, len);
|
|
return;
|
|
}
|
|
|
|
switch (cmd_evt) {
|
|
case WIMAX_RX_SDU_AGGR:
|
|
gdm_wimax_transmit_aggr_pkt(dev, &buf[HCI_HEADER_SIZE],
|
|
cmd_len);
|
|
break;
|
|
case WIMAX_RX_SDU:
|
|
gdm_wimax_netif_rx(dev, &buf[HCI_HEADER_SIZE], cmd_len);
|
|
break;
|
|
#if defined(CONFIG_WIMAX_GDM72XX_QOS)
|
|
case WIMAX_EVT_MODEM_REPORT:
|
|
gdm_recv_qos_hci_packet(nic, buf, len);
|
|
break;
|
|
#endif
|
|
case WIMAX_SDU_TX_FLOW:
|
|
if (buf[4] == 0) {
|
|
if (!netif_queue_stopped(dev))
|
|
netif_stop_queue(dev);
|
|
} else if (buf[4] == 1) {
|
|
if (netif_queue_stopped(dev))
|
|
netif_wake_queue(dev);
|
|
}
|
|
break;
|
|
default:
|
|
gdm_wimax_event_send(dev, buf, len);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void gdm_wimax_ind_fsm_update(struct net_device *dev, struct fsm_s *fsm)
|
|
{
|
|
u16 buf[32 / sizeof(u16)];
|
|
u8 *hci_pkt_buf = (u8 *)&buf[0];
|
|
|
|
/* Indicate updating fsm */
|
|
buf[0] = H2B(WIMAX_FSM_UPDATE);
|
|
buf[1] = H2B(sizeof(struct fsm_s));
|
|
memcpy(&hci_pkt_buf[HCI_HEADER_SIZE], fsm, sizeof(struct fsm_s));
|
|
|
|
gdm_wimax_event_send(dev, hci_pkt_buf,
|
|
HCI_HEADER_SIZE + sizeof(struct fsm_s));
|
|
}
|
|
|
|
static void gdm_wimax_ind_if_updown(struct net_device *dev, int if_up)
|
|
{
|
|
u16 buf[32 / sizeof(u16)];
|
|
struct hci_s *hci = (struct hci_s *) buf;
|
|
unsigned char up_down;
|
|
|
|
up_down = if_up ? WIMAX_IF_UP : WIMAX_IF_DOWN;
|
|
|
|
/* Indicate updating fsm */
|
|
hci->cmd_evt = H2B(WIMAX_IF_UPDOWN);
|
|
hci->length = H2B(sizeof(up_down));
|
|
hci->data[0] = up_down;
|
|
|
|
gdm_wimax_event_send(dev, (char *)hci, HCI_HEADER_SIZE+sizeof(up_down));
|
|
}
|
|
|
|
static void rx_complete(void *arg, void *data, int len)
|
|
{
|
|
struct nic *nic = arg;
|
|
|
|
gdm_wimax_transmit_pkt(nic->netdev, data, len);
|
|
gdm_wimax_rcv_with_cb(nic, rx_complete, nic);
|
|
}
|
|
|
|
static void prepare_rx_complete(void *arg, void *data, int len)
|
|
{
|
|
struct nic *nic = arg;
|
|
int ret;
|
|
|
|
ret = gdm_wimax_get_prepared_info(nic->netdev, data, len);
|
|
if (ret == 1)
|
|
gdm_wimax_rcv_with_cb(nic, rx_complete, nic);
|
|
else {
|
|
if (ret < 0)
|
|
netdev_err(nic->netdev,
|
|
"get_prepared_info failed(%d)\n", ret);
|
|
gdm_wimax_rcv_with_cb(nic, prepare_rx_complete, nic);
|
|
#if 0
|
|
/* Re-prepare WiMax device */
|
|
gdm_wimax_prepare_device(nic->netdev);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static void start_rx_proc(struct nic *nic)
|
|
{
|
|
gdm_wimax_rcv_with_cb(nic, prepare_rx_complete, nic);
|
|
}
|
|
|
|
static struct net_device_ops gdm_netdev_ops = {
|
|
.ndo_open = gdm_wimax_open,
|
|
.ndo_stop = gdm_wimax_close,
|
|
.ndo_set_config = gdm_wimax_set_config,
|
|
.ndo_start_xmit = gdm_wimax_tx,
|
|
.ndo_get_stats = gdm_wimax_stats,
|
|
.ndo_set_mac_address = gdm_wimax_set_mac_addr,
|
|
.ndo_do_ioctl = gdm_wimax_ioctl,
|
|
};
|
|
|
|
int register_wimax_device(struct phy_dev *phy_dev, struct device *pdev)
|
|
{
|
|
struct nic *nic = NULL;
|
|
struct net_device *dev;
|
|
int ret;
|
|
|
|
dev = alloc_netdev(sizeof(*nic), "wm%d", ether_setup);
|
|
|
|
if (dev == NULL) {
|
|
pr_err("alloc_etherdev failed\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
SET_NETDEV_DEV(dev, pdev);
|
|
dev->mtu = 1400;
|
|
dev->netdev_ops = &gdm_netdev_ops;
|
|
dev->flags &= ~IFF_MULTICAST;
|
|
memcpy(dev->dev_addr, gdm_wimax_macaddr, sizeof(gdm_wimax_macaddr));
|
|
|
|
nic = netdev_priv(dev);
|
|
memset(nic, 0, sizeof(*nic));
|
|
|
|
nic->netdev = dev;
|
|
nic->phy_dev = phy_dev;
|
|
phy_dev->netdev = dev;
|
|
|
|
/* event socket init */
|
|
ret = gdm_wimax_event_init();
|
|
if (ret < 0) {
|
|
pr_err("Cannot create event.\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = register_netdev(dev);
|
|
if (ret)
|
|
goto cleanup;
|
|
|
|
#if defined(LOOPBACK_TEST)
|
|
netif_start_queue(dev);
|
|
netif_carrier_on(dev);
|
|
#else
|
|
netif_carrier_off(dev);
|
|
#endif
|
|
|
|
#ifdef CONFIG_WIMAX_GDM72XX_QOS
|
|
gdm_qos_init(nic);
|
|
#endif
|
|
|
|
start_rx_proc(nic);
|
|
|
|
/* Prepare WiMax device */
|
|
gdm_wimax_prepare_device(dev);
|
|
|
|
return 0;
|
|
|
|
cleanup:
|
|
pr_err("register_netdev failed\n");
|
|
free_netdev(dev);
|
|
return ret;
|
|
}
|
|
|
|
void unregister_wimax_device(struct phy_dev *phy_dev)
|
|
{
|
|
struct nic *nic = netdev_priv(phy_dev->netdev);
|
|
struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf;
|
|
|
|
if (fsm)
|
|
fsm->m_status = M_INIT;
|
|
unregister_netdev(nic->netdev);
|
|
|
|
gdm_wimax_event_exit();
|
|
|
|
#if defined(CONFIG_WIMAX_GDM72XX_QOS)
|
|
gdm_qos_release_list(nic);
|
|
#endif
|
|
|
|
gdm_wimax_cleanup_ioctl(phy_dev->netdev);
|
|
|
|
free_netdev(nic->netdev);
|
|
}
|