From: Alexander Aring Date: Sat, 25 Oct 2014 15:16:33 +0000 (+0200) Subject: ieee802154: remove fakehard driver X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=36426484fcaca2153616d6f3496b389a5b11bd9f;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git ieee802154: remove fakehard driver This patch removes the not functional fakehard driver. We don't support HardMAC 802.15.4 drivers right now. Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann --- diff --git a/drivers/net/ieee802154/Kconfig b/drivers/net/ieee802154/Kconfig index 391a916622a9..1a3c3e57aa0b 100644 --- a/drivers/net/ieee802154/Kconfig +++ b/drivers/net/ieee802154/Kconfig @@ -10,16 +10,6 @@ menuconfig IEEE802154_DRIVERS If you say N, all options in this submenu will be skipped and disabled. -config IEEE802154_FAKEHARD - tristate "Fake LR-WPAN driver with several interconnected devices" - depends on IEEE802154_DRIVERS - ---help--- - Say Y here to enable the fake driver that serves as an example - of HardMAC device driver. - - This driver can also be built as a module. To do so say M here. - The module will be called 'fakehard'. - config IEEE802154_FAKELB depends on IEEE802154_DRIVERS && MAC802154 tristate "IEEE 802.15.4 loopback driver" diff --git a/drivers/net/ieee802154/Makefile b/drivers/net/ieee802154/Makefile index 655cb95e6e24..d77fa4d77e27 100644 --- a/drivers/net/ieee802154/Makefile +++ b/drivers/net/ieee802154/Makefile @@ -1,4 +1,3 @@ -obj-$(CONFIG_IEEE802154_FAKEHARD) += fakehard.o obj-$(CONFIG_IEEE802154_FAKELB) += fakelb.o obj-$(CONFIG_IEEE802154_AT86RF230) += at86rf230.o obj-$(CONFIG_IEEE802154_MRF24J40) += mrf24j40.o diff --git a/drivers/net/ieee802154/fakehard.c b/drivers/net/ieee802154/fakehard.c deleted file mode 100644 index 8be05ade0ceb..000000000000 --- a/drivers/net/ieee802154/fakehard.c +++ /dev/null @@ -1,427 +0,0 @@ -/* - * Sample driver for HardMAC IEEE 802.15.4 devices - * - * Copyright (C) 2009 Siemens AG - * - * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Written by: - * Dmitry Eremin-Solenikov - */ -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -struct fakehard_priv { - struct wpan_phy *phy; -}; - -static struct wpan_phy *fake_to_phy(const struct net_device *dev) -{ - struct fakehard_priv *priv = netdev_priv(dev); - return priv->phy; -} - -/** - * fake_get_phy - Return a phy corresponding to this device. - * @dev: The network device for which to return the wan-phy object - * - * This function returns a wpan-phy object corresponding to the passed - * network device. Reference counter for wpan-phy object is incremented, - * so when the wpan-phy isn't necessary, you should drop the reference - * via @wpan_phy_put() call. - */ -static struct wpan_phy *fake_get_phy(const struct net_device *dev) -{ - struct wpan_phy *phy = fake_to_phy(dev); - return to_phy(get_device(&phy->dev)); -} - -/** - * fake_get_pan_id - Retrieve the PAN ID of the device. - * @dev: The network device to retrieve the PAN of. - * - * Return the ID of the PAN from the PIB. - */ -static __le16 fake_get_pan_id(const struct net_device *dev) -{ - BUG_ON(dev->type != ARPHRD_IEEE802154); - - return cpu_to_le16(0xeba1); -} - -/** - * fake_get_short_addr - Retrieve the short address of the device. - * @dev: The network device to retrieve the short address of. - * - * Returns the IEEE 802.15.4 short-form address cached for this - * device. If the device has not yet had a short address assigned - * then this should return 0xFFFF to indicate a lack of association. - */ -static __le16 fake_get_short_addr(const struct net_device *dev) -{ - BUG_ON(dev->type != ARPHRD_IEEE802154); - - return cpu_to_le16(0x1); -} - -/** - * fake_get_dsn - Retrieve the DSN of the device. - * @dev: The network device to retrieve the DSN for. - * - * Returns the IEEE 802.15.4 DSN for the network device. - * The DSN is the sequence number which will be added to each - * packet or MAC command frame by the MAC during transmission. - * - * DSN means 'Data Sequence Number'. - * - * Note: This is in section 7.2.1.2 of the IEEE 802.15.4-2006 - * document. - */ -static u8 fake_get_dsn(const struct net_device *dev) -{ - BUG_ON(dev->type != ARPHRD_IEEE802154); - - return 0x00; /* DSN are implemented in HW, so return just 0 */ -} - -/** - * fake_assoc_req - Make an association request to the HW. - * @dev: The network device which we are associating to a network. - * @addr: The coordinator with which we wish to associate. - * @channel: The channel on which to associate. - * @cap: The capability information field to use in the association. - * - * Start an association with a coordinator. The coordinator's address - * and PAN ID can be found in @addr. - * - * Note: This is in section 7.3.1 and 7.5.3.1 of the IEEE - * 802.15.4-2006 document. - */ -static int fake_assoc_req(struct net_device *dev, - struct ieee802154_addr *addr, u8 channel, u8 page, u8 cap) -{ - struct wpan_phy *phy = fake_to_phy(dev); - - mutex_lock(&phy->pib_lock); - phy->current_channel = channel; - phy->current_page = page; - mutex_unlock(&phy->pib_lock); - - /* We simply emulate it here */ - return ieee802154_nl_assoc_confirm(dev, fake_get_short_addr(dev), - IEEE802154_SUCCESS); -} - -/** - * fake_assoc_resp - Send an association response to a device. - * @dev: The network device on which to send the response. - * @addr: The address of the device to respond to. - * @short_addr: The assigned short address for the device (if any). - * @status: The result of the association request. - * - * Queue the association response of the coordinator to another - * device's attempt to associate with the network which we - * coordinate. This is then added to the indirect-send queue to be - * transmitted to the end device when it polls for data. - * - * Note: This is in section 7.3.2 and 7.5.3.1 of the IEEE - * 802.15.4-2006 document. - */ -static int fake_assoc_resp(struct net_device *dev, - struct ieee802154_addr *addr, __le16 short_addr, u8 status) -{ - return 0; -} - -/** - * fake_disassoc_req - Disassociate a device from a network. - * @dev: The network device on which we're disassociating a device. - * @addr: The device to disassociate from the network. - * @reason: The reason to give to the device for being disassociated. - * - * This sends a disassociation notification to the device being - * disassociated from the network. - * - * Note: This is in section 7.5.3.2 of the IEEE 802.15.4-2006 - * document, with the reason described in 7.3.3.2. - */ -static int fake_disassoc_req(struct net_device *dev, - struct ieee802154_addr *addr, u8 reason) -{ - return ieee802154_nl_disassoc_confirm(dev, IEEE802154_SUCCESS); -} - -/** - * fake_start_req - Start an IEEE 802.15.4 PAN. - * @dev: The network device on which to start the PAN. - * @addr: The coordinator address to use when starting the PAN. - * @channel: The channel on which to start the PAN. - * @bcn_ord: Beacon order. - * @sf_ord: Superframe order. - * @pan_coord: Whether or not we are the PAN coordinator or just - * requesting a realignment perhaps? - * @blx: Battery Life Extension feature bitfield. - * @coord_realign: Something to realign something else. - * - * If pan_coord is non-zero then this starts a network with the - * provided parameters, otherwise it attempts a coordinator - * realignment of the stated network instead. - * - * Note: This is in section 7.5.2.3 of the IEEE 802.15.4-2006 - * document, with 7.3.8 describing coordinator realignment. - */ -static int fake_start_req(struct net_device *dev, - struct ieee802154_addr *addr, u8 channel, u8 page, - u8 bcn_ord, u8 sf_ord, u8 pan_coord, u8 blx, - u8 coord_realign) -{ - struct wpan_phy *phy = fake_to_phy(dev); - - mutex_lock(&phy->pib_lock); - phy->current_channel = channel; - phy->current_page = page; - mutex_unlock(&phy->pib_lock); - - /* We don't emulate beacons here at all, so START should fail */ - ieee802154_nl_start_confirm(dev, IEEE802154_INVALID_PARAMETER); - return 0; -} - -/** - * fake_scan_req - Start a channel scan. - * @dev: The network device on which to perform a channel scan. - * @type: The type of scan to perform. - * @channels: The channel bitmask to scan. - * @duration: How long to spend on each channel. - * - * This starts either a passive (energy) scan or an active (PAN) scan - * on the channels indicated in the @channels bitmask. The duration of - * the scan is measured in terms of superframe duration. Specifically, - * the scan will spend aBaseSuperFrameDuration * ((2^n) + 1) on each - * channel. - * - * Note: This is in section 7.5.2.1 of the IEEE 802.15.4-2006 document. - */ -static int fake_scan_req(struct net_device *dev, u8 type, u32 channels, - u8 page, u8 duration) -{ - u8 edl[27] = {}; - return ieee802154_nl_scan_confirm(dev, IEEE802154_SUCCESS, type, - channels, page, - type == IEEE802154_MAC_SCAN_ED ? edl : NULL); -} - -static struct ieee802154_mlme_ops fake_mlme = { - .assoc_req = fake_assoc_req, - .assoc_resp = fake_assoc_resp, - .disassoc_req = fake_disassoc_req, - .start_req = fake_start_req, - .scan_req = fake_scan_req, - - .get_phy = fake_get_phy, - - .get_pan_id = fake_get_pan_id, - .get_short_addr = fake_get_short_addr, - .get_dsn = fake_get_dsn, -}; - -static int ieee802154_fake_open(struct net_device *dev) -{ - netif_start_queue(dev); - return 0; -} - -static int ieee802154_fake_close(struct net_device *dev) -{ - netif_stop_queue(dev); - return 0; -} - -static netdev_tx_t ieee802154_fake_xmit(struct sk_buff *skb, - struct net_device *dev) -{ - dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; - - /* FIXME: do hardware work here ... */ - - dev_kfree_skb(skb); - return NETDEV_TX_OK; -} - - -static int ieee802154_fake_ioctl(struct net_device *dev, struct ifreq *ifr, - int cmd) -{ - struct sockaddr_ieee802154 *sa = - (struct sockaddr_ieee802154 *)&ifr->ifr_addr; - u16 pan_id, short_addr; - - switch (cmd) { - case SIOCGIFADDR: - /* FIXME: fixed here, get from device IRL */ - pan_id = le16_to_cpu(fake_get_pan_id(dev)); - short_addr = le16_to_cpu(fake_get_short_addr(dev)); - if (pan_id == IEEE802154_PANID_BROADCAST || - short_addr == IEEE802154_ADDR_BROADCAST) - return -EADDRNOTAVAIL; - - sa->family = AF_IEEE802154; - sa->addr.addr_type = IEEE802154_ADDR_SHORT; - sa->addr.pan_id = pan_id; - sa->addr.short_addr = short_addr; - return 0; - } - return -ENOIOCTLCMD; -} - -static int ieee802154_fake_mac_addr(struct net_device *dev, void *p) -{ - return -EBUSY; /* HW address is built into the device */ -} - -static const struct net_device_ops fake_ops = { - .ndo_open = ieee802154_fake_open, - .ndo_stop = ieee802154_fake_close, - .ndo_start_xmit = ieee802154_fake_xmit, - .ndo_do_ioctl = ieee802154_fake_ioctl, - .ndo_set_mac_address = ieee802154_fake_mac_addr, -}; - -static void ieee802154_fake_destruct(struct net_device *dev) -{ - struct wpan_phy *phy = fake_to_phy(dev); - - wpan_phy_unregister(phy); - free_netdev(dev); - wpan_phy_free(phy); -} - -static void ieee802154_fake_setup(struct net_device *dev) -{ - dev->addr_len = IEEE802154_ADDR_LEN; - memset(dev->broadcast, 0xff, IEEE802154_ADDR_LEN); - dev->features = NETIF_F_HW_CSUM; - dev->needed_tailroom = 2; /* FCS */ - dev->mtu = 127; - dev->tx_queue_len = 10; - dev->type = ARPHRD_IEEE802154; - dev->flags = IFF_NOARP | IFF_BROADCAST; - dev->watchdog_timeo = 0; - dev->destructor = ieee802154_fake_destruct; -} - - -static int ieee802154fake_probe(struct platform_device *pdev) -{ - struct net_device *dev; - struct fakehard_priv *priv; - struct wpan_phy *phy = wpan_phy_alloc(0); - int err; - - if (!phy) - return -ENOMEM; - - dev = alloc_netdev(sizeof(struct fakehard_priv), "hardwpan%d", - NET_NAME_UNKNOWN, ieee802154_fake_setup); - if (!dev) { - wpan_phy_free(phy); - return -ENOMEM; - } - - memcpy(dev->dev_addr, "\xba\xbe\xca\xfe\xde\xad\xbe\xef", - dev->addr_len); - - /* - * For now we'd like to emulate 2.4 GHz-only device, - * both O-QPSK and CSS - */ - /* 2.4 GHz O-QPSK 802.15.4-2003 */ - phy->channels_supported[0] |= 0x7FFF800; - /* 2.4 GHz CSS 802.15.4a-2007 */ - phy->channels_supported[3] |= 0x3fff; - - phy->transmit_power = 0xbf; - - dev->netdev_ops = &fake_ops; - dev->ml_priv = &fake_mlme; - - priv = netdev_priv(dev); - priv->phy = phy; - - wpan_phy_set_dev(phy, &pdev->dev); - SET_NETDEV_DEV(dev, &phy->dev); - - platform_set_drvdata(pdev, dev); - - err = wpan_phy_register(phy); - if (err) - goto out; - - err = register_netdev(dev); - if (err < 0) - goto out; - - dev_info(&pdev->dev, "Added ieee802154 HardMAC hardware\n"); - return 0; - -out: - unregister_netdev(dev); - return err; -} - -static int ieee802154fake_remove(struct platform_device *pdev) -{ - struct net_device *dev = platform_get_drvdata(pdev); - unregister_netdev(dev); - return 0; -} - -static struct platform_device *ieee802154fake_dev; - -static struct platform_driver ieee802154fake_driver = { - .probe = ieee802154fake_probe, - .remove = ieee802154fake_remove, - .driver = { - .name = "ieee802154hardmac", - .owner = THIS_MODULE, - }, -}; - -static __init int fake_init(void) -{ - ieee802154fake_dev = platform_device_register_simple( - "ieee802154hardmac", -1, NULL, 0); - return platform_driver_register(&ieee802154fake_driver); -} - -static __exit void fake_exit(void) -{ - platform_driver_unregister(&ieee802154fake_driver); - platform_device_unregister(ieee802154fake_dev); -} - -module_init(fake_init); -module_exit(fake_exit); -MODULE_LICENSE("GPL");