diff options
Diffstat (limited to 'drivers/ieee802154/fakehard.c')
| -rw-r--r-- | drivers/ieee802154/fakehard.c | 191 |
1 files changed, 175 insertions, 16 deletions
diff --git a/drivers/ieee802154/fakehard.c b/drivers/ieee802154/fakehard.c index 0384144..96a2959 100644 --- a/drivers/ieee802154/fakehard.c +++ b/drivers/ieee802154/fakehard.c @@ -26,11 +26,23 @@ #include <linux/skbuff.h> #include <linux/if_arp.h> -#include <net/ieee802154/af_ieee802154.h> -#include <net/ieee802154/netdevice.h> -#include <net/ieee802154/mac_def.h> -#include <net/ieee802154/nl802154.h> +#include <net/af_ieee802154.h> +#include <net/ieee802154_netdev.h> +#include <net/ieee802154.h> +#include <net/nl802154.h> +#include <net/wpan-phy.h> +struct wpan_phy *net_to_phy(struct net_device *dev) +{ + return container_of(dev->dev.parent, struct wpan_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 u16 fake_get_pan_id(struct net_device *dev) { BUG_ON(dev->type != ARPHRD_IEEE802154); @@ -38,6 +50,14 @@ static u16 fake_get_pan_id(struct net_device *dev) return 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 u16 fake_get_short_addr(struct net_device *dev) { BUG_ON(dev->type != ARPHRD_IEEE802154); @@ -45,6 +65,19 @@ static u16 fake_get_short_addr(struct net_device *dev) return 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(struct net_device *dev) { BUG_ON(dev->type != ARPHRD_IEEE802154); @@ -52,6 +85,19 @@ static u8 fake_get_dsn(struct net_device *dev) return 0x00; /* DSN are implemented in HW, so return just 0 */ } +/** + * fake_get_bsn - Retrieve the BSN of the device. + * @dev: The network device to retrieve the BSN for. + * + * Returns the IEEE 802.15.4 BSN for the network device. + * The BSN is the sequence number which will be added to each + * beacon frame sent by the MAC. + * + * BSN means 'Beacon Sequence Number'. + * + * Note: This is in section 7.2.1.2 of the IEEE 802.15.4-2006 + * document. + */ static u8 fake_get_bsn(struct net_device *dev) { BUG_ON(dev->type != ARPHRD_IEEE802154); @@ -59,40 +105,130 @@ static u8 fake_get_bsn(struct net_device *dev) return 0x00; /* BSN 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 cap) + struct ieee802154_addr *addr, u8 channel, u8 page, u8 cap) { + struct wpan_phy *phy = net_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, u16 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 channel, u8 page, u8 bcn_ord, u8 sf_ord, u8 pan_coord, u8 blx, u8 coord_realign) { + struct wpan_phy *phy = net_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 duration) + u8 page, u8 duration) { u8 edl[27] = {}; return ieee802154_nl_scan_confirm(dev, IEEE802154_SUCCESS, type, - channels, + channels, page, type == IEEE802154_MAC_SCAN_ED ? edl : NULL); } @@ -121,7 +257,8 @@ static int ieee802154_fake_close(struct net_device *dev) return 0; } -static int ieee802154_fake_xmit(struct sk_buff *skb, struct net_device *dev) +static netdev_tx_t ieee802154_fake_xmit(struct sk_buff *skb, + struct net_device *dev) { skb->iif = dev->ifindex; skb->dev = dev; @@ -132,7 +269,7 @@ static int ieee802154_fake_xmit(struct sk_buff *skb, struct net_device *dev) /* FIXME: do hardware work here ... */ - return 0; + return NETDEV_TX_OK; } @@ -174,6 +311,14 @@ static const struct net_device_ops fake_ops = { .ndo_set_mac_address = ieee802154_fake_mac_addr, }; +static void ieee802154_fake_destruct(struct net_device *dev) +{ + struct wpan_phy *phy = net_to_phy(dev); + + wpan_phy_unregister(phy); + free_netdev(dev); + wpan_phy_free(phy); +} static void ieee802154_fake_setup(struct net_device *dev) { @@ -186,22 +331,34 @@ static void ieee802154_fake_setup(struct net_device *dev) dev->type = ARPHRD_IEEE802154; dev->flags = IFF_NOARP | IFF_BROADCAST; dev->watchdog_timeo = 0; + dev->destructor = ieee802154_fake_destruct; } static int __devinit ieee802154fake_probe(struct platform_device *pdev) { - struct net_device *dev = - alloc_netdev(0, "hardwpan%d", ieee802154_fake_setup); + struct net_device *dev; + struct wpan_phy *phy = wpan_phy_alloc(0); int err; - if (!dev) + if (!phy) return -ENOMEM; + dev = alloc_netdev(0, "hardwpan%d", ieee802154_fake_setup); + if (!dev) { + wpan_phy_free(phy); + return -ENOMEM; + } + + phy->dev.platform_data = dev; + memcpy(dev->dev_addr, "\xba\xbe\xca\xfe\xde\xad\xbe\xef", dev->addr_len); memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); + phy->channels_supported = (1 << 27) - 1; + phy->transmit_power = 0xbf; + dev->netdev_ops = &fake_ops; dev->ml_priv = &fake_mlme; @@ -215,15 +372,18 @@ static int __devinit ieee802154fake_probe(struct platform_device *pdev) goto out; } - SET_NETDEV_DEV(dev, &pdev->dev); + SET_NETDEV_DEV(dev, &phy->dev); platform_set_drvdata(pdev, dev); + err = wpan_phy_register(&pdev->dev, 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; @@ -236,7 +396,6 @@ static int __devexit ieee802154fake_remove(struct platform_device *pdev) { struct net_device *dev = platform_get_drvdata(pdev); unregister_netdev(dev); - free_netdev(dev); return 0; } |
