/**************************************************************************** * drivers/wireless/bcm43xxx/bcmf_netdev.c * * Copyright (C) 2017-2018 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #if defined(CONFIG_NET) && defined(CONFIG_IEEE80211_BROADCOM_FULLMAC) #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_NET_PKT # include #endif #include "bcmf_driver.h" #include "bcmf_cdc.h" #include "bcmf_bdc.h" #include "bcmf_ioctl.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* If processing is not done at the interrupt level, then work queue support * is required. */ #if !defined(CONFIG_SCHED_WORKQUEUE) # error Work queue support is required in this configuration (CONFIG_SCHED_WORKQUEUE) #endif /* The low priority work queue is preferred. If it is not enabled, LPWORK * will be the same as HPWORK. * * NOTE: However, the network should NEVER run on the high priority work * queue! That queue is intended only to service short back end interrupt * processing that never suspends. Suspending the high priority work queue * may bring the system to its knees! */ #define BCMFWORK LPWORK /* CONFIG_IEEE80211_BROADCOM_NINTERFACES determines the number of physical * interfaces that will be supported. */ #ifndef CONFIG_IEEE80211_BROADCOM_NINTERFACES # define CONFIG_IEEE80211_BROADCOM_NINTERFACES 1 #endif /* TX poll delay = 1 seconds. * CLK_TCK is the number of clock ticks per second */ #define BCMF_WDDELAY (1*CLK_TCK) /* TX timeout = 1 minute */ #define BCMF_TXTIMEOUT (60*CLK_TCK) /* This is a helper pointer for accessing the contents of Ethernet header */ #define BUF ((struct eth_hdr_s *)priv->bc_dev.d_buf) /**************************************************************************** * Private Function Prototypes ****************************************************************************/ /* Common TX logic */ static int bcmf_transmit(FAR struct bcmf_dev_s *priv, FAR struct bcmf_frame_s *frame); static void bcmf_receive(FAR struct bcmf_dev_s *priv); static int bcmf_txpoll(FAR struct net_driver_s *dev); static void bcmf_rxpoll(FAR void *arg); /* Watchdog timer expirations */ static void bcmf_poll_work(FAR void *arg); static void bcmf_poll_expiry(int argc, wdparm_t arg, ...); /* NuttX callback functions */ static int bcmf_ifup(FAR struct net_driver_s *dev); static int bcmf_ifdown(FAR struct net_driver_s *dev); static void bcmf_txavail_work(FAR void *arg); static int bcmf_txavail(FAR struct net_driver_s *dev); #if defined(CONFIG_NET_MCASTGROUP) || defined(CONFIG_NET_ICMPv6) static int bcmf_addmac(FAR struct net_driver_s *dev, FAR const uint8_t *mac); #ifdef CONFIG_NET_MCASTGROUP static int bcmf_rmmac(FAR struct net_driver_s *dev, FAR const uint8_t *mac); #endif #ifdef CONFIG_NET_ICMPv6 static void bcmf_ipv6multicast(FAR struct bcmf_dev_s *priv); #endif #endif #ifdef CONFIG_NETDEV_IOCTL static int bcmf_ioctl(FAR struct net_driver_s *dev, int cmd, unsigned long arg); #endif /**************************************************************************** * Private Functions ****************************************************************************/ int bcmf_netdev_alloc_tx_frame(FAR struct bcmf_dev_s *priv) { if (priv->cur_tx_frame != NULL) { /* Frame available */ return OK; } /* Allocate frame for TX */ priv->cur_tx_frame = bcmf_bdc_allocate_frame(priv, MAX_NETDEV_PKTSIZE, true); if (!priv->cur_tx_frame) { wlerr("ERROR: Cannot allocate TX frame\n"); return -ENOMEM; } return OK; } /**************************************************************************** * Name: bcmf_transmit * * Description: * Start hardware transmission. Called either from the txdone interrupt * handling or from watchdog based polling. * * Input Parameters: * priv - Reference to the driver state structure * * Returned Value: * OK on success; a negated errno on failure * * Assumptions: * May or may not be called from an interrupt handler. In either case, * the network is locked. * ****************************************************************************/ static int bcmf_transmit(FAR struct bcmf_dev_s *priv, struct bcmf_frame_s *frame) { int ret; frame->len = priv->bc_dev.d_len + (unsigned int)(frame->data - frame->base); ret = bcmf_bdc_transmit_frame(priv, frame); if (ret) { wlerr("ERROR: Failed to transmit frame\n"); return -EIO; } NETDEV_TXPACKETS(&priv->bc_dev); return OK; } /**************************************************************************** * Name: bcmf_receive * * Description: * An interrupt was received indicating the availability of a new RX packet * * Input Parameters: * priv - Reference to the driver state structure * * Returned Value: * None * * Assumptions: * The network is locked. * ****************************************************************************/ static void bcmf_receive(FAR struct bcmf_dev_s *priv) { struct bcmf_frame_s *frame; do { /* Request frame buffer from bus interface */ frame = bcmf_bdc_rx_frame(priv); if (frame == NULL) { /* No more frame to process */ break; } if (!priv->bc_bifup) { /* Interface down, drop frame */ priv->bus->free_frame(priv, frame); continue; } priv->bc_dev.d_buf = frame->data; priv->bc_dev.d_len = frame->len - (frame->data - frame->base); wlinfo("Got frame %p %d\n", frame, priv->bc_dev.d_len); #ifdef CONFIG_NET_PKT /* When packet sockets are enabled, feed the frame into the tap */ pkt_input(&priv->bc_dev); #endif /* Check if this is an 802.1Q VLAN tagged packet */ if (BUF->type == HTONS(TPID_8021QVLAN)) { /* Need to remove the 4 octet VLAN Tag, by moving src and dest * addresses 4 octets to the right, and then read the actual * ethertype. The VLAN ID and priority fields are currently * ignored. */ uint8_t temp_buffer[12]; memcpy(temp_buffer, frame->data, 12); memcpy(frame->data + 4, temp_buffer, 12); priv->bc_dev.d_buf = frame->data = frame->data + 4; priv->bc_dev.d_len -= 4; } /* We only accept IP packets of the configured type and ARP packets */ #ifdef CONFIG_NET_IPv4 if (BUF->type == HTONS(ETHTYPE_IP)) { ninfo("IPv4 frame\n"); NETDEV_RXIPV4(&priv->bc_dev); /* Handle ARP on input then give the IPv4 packet to the network * layer */ arp_ipin(&priv->bc_dev); ipv4_input(&priv->bc_dev); /* If the above function invocation resulted in data that should be * sent out on the network, d_len field will set to a value > 0. */ if (priv->bc_dev.d_len > 0) { /* Update the Ethernet header with the correct MAC address */ #ifdef CONFIG_NET_IPv6 if (IFF_IS_IPv4(priv->bc_dev.d_flags)) #endif { arp_out(&priv->bc_dev); } #ifdef CONFIG_NET_IPv6 else { neighbor_out(&kel->bc_dev); } #endif /* And send the packet */ bcmf_transmit(priv, frame); } else { /* Release RX frame buffer */ priv->bus->free_frame(priv, frame); } } else #endif #ifdef CONFIG_NET_IPv6 if (BUF->type == HTONS(ETHTYPE_IP6)) { ninfo("IPv6 frame\n"); NETDEV_RXIPV6(&priv->bc_dev); /* Give the IPv6 packet to the network layer */ ipv6_input(&priv->bc_dev); /* If the above function invocation resulted in data that should be * sent out on the network, d_len field will set to a value > 0. */ if (priv->bc_dev.d_len > 0) { /* Update the Ethernet header with the correct MAC address */ #ifdef CONFIG_NET_IPv4 if (IFF_IS_IPv4(priv->bc_dev.d_flags)) { arp_out(&priv->bc_dev); } else #endif #ifdef CONFIG_NET_IPv6 { neighbor_out(&priv->bc_dev); } #endif /* And send the packet */ bcmf_transmit(priv, frame); } else { /* Release RX frame buffer */ priv->bus->free_frame(priv, frame); } } else #endif #ifdef CONFIG_NET_ARP if (BUF->type == htons(ETHTYPE_ARP)) { arp_arpin(&priv->bc_dev); NETDEV_RXARP(&priv->bc_dev); /* If the above function invocation resulted in data that should be * sent out on the network, d_len field will set to a value > 0. */ if (priv->bc_dev.d_len > 0) { bcmf_transmit(priv, frame); } else { /* Release RX frame buffer */ priv->bus->free_frame(priv, frame); } } else #endif { /* On some routers, it may constantly receive mysterious packet... * https://www.wireshark.org/docs/wsar_html/epan/etypes_8h.html * for more etypes definitions. */ NETDEV_RXDROPPED(&priv->bc_dev); priv->bus->free_frame(priv, frame); } } while (1); /* While there are more packets to be processed */ } /**************************************************************************** * Name: bcmf_txpoll * * Description: * The transmitter is available, check if the network has any outgoing * packets ready to send. This is a callback from devif_poll(). * devif_poll() may be called: * * 1. When the preceding TX packet send is complete, * 2. When the preceding TX packet send times out and the interface is * reset * 3. During normal TX polling * * Input Parameters: * dev - Reference to the NuttX driver state structure * * Returned Value: * OK on success; a negated errno on failure * * Assumptions: * May or may not be called from an interrupt handler. In either case, * the network is locked. * ****************************************************************************/ static int bcmf_txpoll(FAR struct net_driver_s *dev) { FAR struct bcmf_dev_s *priv = (FAR struct bcmf_dev_s *)dev->d_private; /* If the polling resulted in data that should be sent out on the network, * the field d_len is set to a value > 0. */ if (priv->bc_dev.d_len > 0) { /* Look up the destination MAC address and add it to the Ethernet * header. */ #ifdef CONFIG_NET_IPv4 #ifdef CONFIG_NET_IPv6 if (IFF_IS_IPv4(priv->bc_dev.d_flags)) #endif { arp_out(&priv->bc_dev); } #endif /* CONFIG_NET_IPv4 */ #ifdef CONFIG_NET_IPv6 #ifdef CONFIG_NET_IPv4 else #endif { neighbor_out(&priv->bc_dev); } #endif /* CONFIG_NET_IPv6 */ if (!devif_loopback(&priv->bc_dev)) { /* Send the packet */ bcmf_transmit(priv, priv->cur_tx_frame); /* TODO: Check if there is room in the device to hold another * packet. If not, return a non-zero value to terminate the poll. */ priv->cur_tx_frame = NULL; return 1; } } /* If zero is returned, the polling will continue until all connections * have been examined. */ return 0; } /**************************************************************************** * Name: bcmf_rxpoll * * Description: * Process RX frames * * Input Parameters: * arg - context of device to use * * Returned Value: * OK on success * * Assumptions: * The network is locked. * ****************************************************************************/ static void bcmf_rxpoll(FAR void *arg) { FAR struct bcmf_dev_s *priv = (FAR struct bcmf_dev_s *)arg; /* Lock the network and serialize driver operations if necessary. * NOTE: Serialization is only required in the case where the driver work * is performed on an LP worker thread and where more than one LP worker * thread has been configured. */ net_lock(); bcmf_receive(priv); /* Check if a packet transmission just completed. If so, call bcmf_txdone. * This may disable further Tx interrupts if there are no pending * transmissions. */ #if 0 bcmf_txdone(priv); #endif net_unlock(); } /**************************************************************************** * Name: bcmf_netdev_notify_tx_done * * Description: * Notify callback called when TX frame is sent and freed. * * Assumptions: * ****************************************************************************/ void bcmf_netdev_notify_tx_done(FAR struct bcmf_dev_s *priv) { /* Schedule to perform a poll for new Tx data the worker thread. */ work_queue(BCMFWORK, &priv->bc_pollwork, bcmf_poll_work, priv, 0); } /**************************************************************************** * Name: bcmf_netdev_notify_rx * * Description: * Notify callback called when RX frame is available * * Assumptions: * ****************************************************************************/ void bcmf_netdev_notify_rx(FAR struct bcmf_dev_s *priv) { /* Queue a job to process RX frames */ work_queue(BCMFWORK, &priv->bc_pollwork, bcmf_rxpoll, priv, 0); } /**************************************************************************** * Name: bcmf_poll_work * * Description: * Perform periodic polling from the worker thread * * Input Parameters: * arg - The argument passed when work_queue() as called. * * Returned Value: * OK on success * * Assumptions: * The network is locked. * ****************************************************************************/ static void bcmf_poll_work(FAR void *arg) { FAR struct bcmf_dev_s *priv = (FAR struct bcmf_dev_s *)arg; /* Lock the network and serialize driver operations if necessary. * NOTE: Serialization is only required in the case where the driver work * is performed on an LP worker thread and where more than one LP worker * thread has been configured. */ net_lock(); /* Perform the poll */ /* Check if there is room in the send another TX packet. We cannot perform * the TX poll if he are unable to accept another packet for transmission. */ if (bcmf_netdev_alloc_tx_frame(priv)) { goto exit_unlock; } /* If so, update TCP timing states and poll the network for new XMIT data. * Hmmm.. might be bug here. Does this mean if there is a transmit in * progress, we will missing TCP time state updates? */ priv->bc_dev.d_buf = priv->cur_tx_frame->data; priv->bc_dev.d_len = 0; devif_timer(&priv->bc_dev, BCMF_WDDELAY, bcmf_txpoll); /* Setup the watchdog poll timer again */ wd_start(&priv->bc_txpoll, BCMF_WDDELAY, bcmf_poll_expiry, 1, (wdparm_t)priv); exit_unlock: net_unlock(); } /**************************************************************************** * Name: bcmf_poll_expiry * * Description: * Periodic timer handler. Called from the timer interrupt handler. * * Input Parameters: * argc - The number of available arguments * arg - The first argument * * Returned Value: * None * * Assumptions: * Global interrupts are disabled by the watchdog logic. * ****************************************************************************/ static void bcmf_poll_expiry(int argc, wdparm_t arg, ...) { FAR struct bcmf_dev_s *priv = (FAR struct bcmf_dev_s *)arg; /* Schedule to perform the interrupt processing on the worker thread. */ work_queue(BCMFWORK, &priv->bc_pollwork, bcmf_poll_work, priv, 0); } /**************************************************************************** * Name: bcmf_ifup * * Description: * NuttX Callback: Bring up the Ethernet interface when an IP address is * provided * * Input Parameters: * dev - Reference to the NuttX driver state structure * * Returned Value: * None * * Assumptions: * ****************************************************************************/ static int bcmf_ifup(FAR struct net_driver_s *dev) { FAR struct bcmf_dev_s *priv = (FAR struct bcmf_dev_s *)dev->d_private; #ifdef CONFIG_NET_IPv4 ninfo("Bringing up: %d.%d.%d.%d\n", dev->d_ipaddr & 0xff, (dev->d_ipaddr >> 8) & 0xff, (dev->d_ipaddr >> 16) & 0xff, dev->d_ipaddr >> 24); #endif #ifdef CONFIG_NET_IPv6 ninfo("Bringing up: %04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", dev->d_ipv6addr[0], dev->d_ipv6addr[1], dev->d_ipv6addr[2], dev->d_ipv6addr[3], dev->d_ipv6addr[4], dev->d_ipv6addr[5], dev->d_ipv6addr[6], dev->d_ipv6addr[7]); #endif /* Instantiate MAC address from priv->bc_dev.d_mac.ether.ether_addr_octet */ #ifdef CONFIG_NET_ICMPv6 /* Set up IPv6 multicast address filtering */ bcmf_ipv6multicast(priv); #endif /* Set and activate a timer process */ wd_start(&priv->bc_txpoll, BCMF_WDDELAY, bcmf_poll_expiry, 1, (wdparm_t)priv); /* Enable the hardware interrupt */ priv->bc_bifup = true; return OK; } /**************************************************************************** * Name: bcmf_ifdown * * Description: * NuttX Callback: Stop the interface. * * Input Parameters: * dev - Reference to the NuttX driver state structure * * Returned Value: * None * * Assumptions: * ****************************************************************************/ static int bcmf_ifdown(FAR struct net_driver_s *dev) { FAR struct bcmf_dev_s *priv = (FAR struct bcmf_dev_s *)dev->d_private; irqstate_t flags; /* Disable the hardware interrupt */ flags = enter_critical_section(); #warning Missing logic /* Cancel the TX poll timer */ wd_cancel(&priv->bc_txpoll); /* Put the EMAC in its reset, non-operational state. This should be * a known configuration that will guarantee the bcmf_ifup() always * successfully brings the interface back up. */ /* Mark the device "down" */ priv->bc_bifup = false; leave_critical_section(flags); return OK; } /**************************************************************************** * Name: bcmf_txavail_work * * Description: * Perform an out-of-cycle poll on the worker thread. * * Input Parameters: * arg - Reference to the NuttX driver state structure (cast to void*) * * Returned Value: * None * * Assumptions: * Called on the higher priority worker thread. * ****************************************************************************/ static void bcmf_txavail_work(FAR void *arg) { FAR struct bcmf_dev_s *priv = (FAR struct bcmf_dev_s *)arg; /* Lock the network and serialize driver operations if necessary. * NOTE: Serialization is only required in the case where the driver work * is performed on an LP worker thread and where more than one LP worker * thread has been configured. */ net_lock(); /* Ignore the notification if the interface is not yet up */ if (priv->bc_bifup) { /* Check if there is room in the hardware to hold another packet. */ if (bcmf_netdev_alloc_tx_frame(priv)) { goto exit_unlock; } /* If so, then poll the network for new XMIT data */ priv->bc_dev.d_buf = priv->cur_tx_frame->data; priv->bc_dev.d_len = 0; devif_poll(&priv->bc_dev, bcmf_txpoll); } exit_unlock: net_unlock(); } /**************************************************************************** * Name: bcmf_txavail * * Description: * Driver callback invoked when new TX data is available. This is a * stimulus perform an out-of-cycle poll and, thereby, reduce the TX * latency. * * Input Parameters: * dev - Reference to the NuttX driver state structure * * Returned Value: * None * * Assumptions: * Called in normal user mode * ****************************************************************************/ static int bcmf_txavail(FAR struct net_driver_s *dev) { FAR struct bcmf_dev_s *priv = (FAR struct bcmf_dev_s *)dev->d_private; /* Is our single work structure available? It may not be if there are * pending interrupt actions and we will have to ignore the Tx * availability action. */ if (work_available(&priv->bc_pollwork)) { /* Schedule to serialize the poll on the worker thread. */ work_queue(BCMFWORK, &priv->bc_pollwork, bcmf_txavail_work, priv, 0); } return OK; } /**************************************************************************** * Name: bcmf_addmac * * Description: * NuttX Callback: Add the specified MAC address to the hardware multicast * address filtering * * Input Parameters: * dev - Reference to the NuttX driver state structure * mac - The MAC address to be added * * Returned Value: * None * * Assumptions: * ****************************************************************************/ #if defined(CONFIG_NET_MCASTGROUP) || defined(CONFIG_NET_ICMPv6) static int bcmf_addmac(FAR struct net_driver_s *dev, FAR const uint8_t *mac) { FAR struct bcmf_dev_s *priv = (FAR struct bcmf_dev_s *)dev->d_private; /* Add the MAC address to the hardware multicast routing table */ return OK; } #endif /**************************************************************************** * Name: bcmf_rmmac * * Description: * NuttX Callback: Remove the specified MAC address from the hardware * multicast address filtering * * Input Parameters: * dev - Reference to the NuttX driver state structure * mac - The MAC address to be removed * * Returned Value: * None * * Assumptions: * ****************************************************************************/ #ifdef CONFIG_NET_MCASTGROUP static int bcmf_rmmac(FAR struct net_driver_s *dev, FAR const uint8_t *mac) { FAR struct bcmf_dev_s *priv = (FAR struct bcmf_dev_s *)dev->d_private; /* Add the MAC address to the hardware multicast routing table */ return OK; } #endif /**************************************************************************** * Name: bcmf_ipv6multicast * * Description: * Configure the IPv6 multicast MAC address. * * Input Parameters: * priv - A reference to the private driver state structure * * Returned Value: * OK on success; Negated errno on failure. * * Assumptions: * ****************************************************************************/ #ifdef CONFIG_NET_ICMPv6 static void bcmf_ipv6multicast(FAR struct bcmf_dev_s *priv) { FAR struct net_driver_s *dev; uint16_t tmp16; uint8_t mac[6]; /* For ICMPv6, we need to add the IPv6 multicast address * * For IPv6 multicast addresses, the Ethernet MAC is derived by * the four low-order octets OR'ed with the MAC 33:33:00:00:00:00, * so for example the IPv6 address FF02:DEAD:BEEF::1:3 would map * to the Ethernet MAC address 33:33:00:01:00:03. * * NOTES: This appears correct for the ICMPv6 Router Solicitation * Message, but the ICMPv6 Neighbor Solicitation message seems to * use 33:33:ff:01:00:03. */ mac[0] = 0x33; mac[1] = 0x33; dev = &priv->bc_dev; tmp16 = dev->d_ipv6addr[6]; mac[2] = 0xff; mac[3] = tmp16 >> 8; tmp16 = dev->d_ipv6addr[7]; mac[4] = tmp16 & 0xff; mac[5] = tmp16 >> 8; ninfo("IPv6 Multicast: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); bcmf_addmac(dev, mac); #ifdef CONFIG_NET_ICMPv6_AUTOCONF /* Add the IPv6 all link-local nodes Ethernet address. This is the * address that we expect to receive ICMPv6 Router Advertisement * packets. */ bcmf_addmac(dev, g_ipv6_ethallnodes.ether_addr_octet); #endif /* CONFIG_NET_ICMPv6_AUTOCONF */ #ifdef CONFIG_NET_ICMPv6_ROUTER /* Add the IPv6 all link-local routers Ethernet address. This is the * address that we expect to receive ICMPv6 Router Solicitation * packets. */ bcmf_addmac(dev, g_ipv6_ethallrouters.ether_addr_octet); #endif /* CONFIG_NET_ICMPv6_ROUTER */ } #endif /* CONFIG_NET_ICMPv6 */ /**************************************************************************** * Name: bcmf_ioctl * * Description: * Handle network IOCTL commands directed to this device. * * Input Parameters: * dev - Reference to the NuttX driver state structure * cmd - The IOCTL command * arg - The argument for the IOCTL command * * Returned Value: * OK on success; Negated errno on failure. * * Assumptions: * ****************************************************************************/ #ifdef CONFIG_NETDEV_IOCTL static int bcmf_ioctl(FAR struct net_driver_s *dev, int cmd, unsigned long arg) { int ret; FAR struct bcmf_dev_s *priv = (FAR struct bcmf_dev_s *)dev->d_private; /* Decode and dispatch the driver-specific IOCTL command */ switch (cmd) { case SIOCSIWSCAN: ret = bcmf_wl_start_scan(priv, (struct iwreq *)arg); break; case SIOCGIWSCAN: ret = bcmf_wl_get_scan_results(priv, (struct iwreq *)arg); break; case SIOCSIFHWADDR: /* Set device MAC address */ ret = bcmf_wl_set_mac_address(priv, (struct ifreq *)arg); break; case SIOCSIWAUTH: ret = bcmf_wl_set_auth_param(priv, (struct iwreq *)arg); break; case SIOCSIWENCODEEXT: ret = bcmf_wl_set_encode_ext(priv, (struct iwreq *)arg); break; case SIOCSIWFREQ: /* Set channel/frequency (Hz) */ wlwarn("WARNING: SIOCSIWFREQ not implemented\n"); ret = -ENOSYS; break; case SIOCGIWFREQ: /* Get channel/frequency (Hz) */ wlwarn("WARNING: SIOCGIWFREQ not implemented\n"); ret = -ENOSYS; break; case SIOCSIWMODE: /* Set operation mode */ ret = bcmf_wl_set_mode(priv, (struct iwreq *)arg); break; case SIOCGIWMODE: /* Get operation mode */ wlwarn("WARNING: SIOCGIWMODE not implemented\n"); ret = -ENOSYS; break; case SIOCSIWAP: /* Set access point MAC addresses */ wlwarn("WARNING: SIOCSIWAP not implemented\n"); ret = -ENOSYS; break; case SIOCGIWAP: /* Get access point MAC addresses */ wlwarn("WARNING: SIOCGIWAP not implemented\n"); ret = -ENOSYS; break; case SIOCSIWESSID: /* Set ESSID (network name) */ ret = bcmf_wl_set_ssid(priv, (struct iwreq *)arg); break; case SIOCGIWESSID: /* Get ESSID */ wlwarn("WARNING: SIOCGIWESSID not implemented\n"); ret = -ENOSYS; break; case SIOCSIWRATE: /* Set default bit rate (bps) */ wlwarn("WARNING: SIOCSIWRATE not implemented\n"); ret = -ENOSYS; break; case SIOCGIWRATE: /* Get default bit rate (bps) */ wlwarn("WARNING: SIOCGIWRATE not implemented\n"); ret = -ENOSYS; break; case SIOCSIWTXPOW: /* Set transmit power (dBm) */ wlwarn("WARNING: SIOCSIWTXPOW not implemented\n"); ret = -ENOSYS; break; case SIOCGIWTXPOW: /* Get transmit power (dBm) */ wlwarn("WARNING: SIOCGIWTXPOW not implemented\n"); ret = -ENOSYS; break; default: nerr("ERROR: Unrecognized IOCTL command: %d\n", cmd); ret = -ENOTTY; /* Special return value for this case */ break; } return ret; } #endif /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: bcmf_netdev_register * * Description: * Register a network driver and set Broadcom chip in a proper state * * Input Parameters: * priv - Broadcom driver device * * Returned Value: * OK on success; Negated errno on failure. * * Assumptions: * ****************************************************************************/ int bcmf_netdev_register(FAR struct bcmf_dev_s *priv) { uint32_t out_len; /* Initialize network driver structure */ memset(&priv->bc_dev, 0, sizeof(priv->bc_dev)); priv->bc_dev.d_ifup = bcmf_ifup; /* I/F up (new IP address) callback */ priv->bc_dev.d_ifdown = bcmf_ifdown; /* I/F down callback */ priv->bc_dev.d_txavail = bcmf_txavail; /* New TX data callback */ #ifdef CONFIG_NET_MCASTGROUP priv->bc_dev.d_addmac = bcmf_addmac; /* Add multicast MAC address */ priv->bc_dev.d_rmmac = bcmf_rmmac; /* Remove multicast MAC address */ #endif #ifdef CONFIG_NETDEV_IOCTL priv->bc_dev.d_ioctl = bcmf_ioctl; /* Handle network IOCTL commands */ #endif priv->bc_dev.d_private = priv; /* Used to recover private state from dev */ /* Initialize network stack interface buffer */ priv->cur_tx_frame = NULL; priv->bc_dev.d_buf = NULL; /* Put the interface in the down state. This usually amounts to resetting * the device and/or calling bcmf_ifdown(). */ /* Enable chip */ if (bcmf_wl_enable(priv, true) != OK) { return -EIO; } /* Query MAC address */ out_len = ETHER_ADDR_LEN; if (bcmf_cdc_iovar_request(priv, CHIP_STA_INTERFACE, false, IOVAR_STR_CUR_ETHERADDR, priv->bc_dev.d_mac.ether.ether_addr_octet, &out_len) != OK) { return -EIO; } /* Register the device with the OS so that socket IOCTLs can be performed */ netdev_register(&priv->bc_dev, NET_LL_IEEE80211); return OK; } #endif /* CONFIG_NET && CONFIG_IEEE80211_BROADCOM_FULLMAC */