diff options
Diffstat (limited to 'net/mac802154/main.c')
| -rw-r--r-- | net/mac802154/main.c | 105 |
1 files changed, 82 insertions, 23 deletions
diff --git a/net/mac802154/main.c b/net/mac802154/main.c index 87da85ae5a6b..ea1efef3572a 100644 --- a/net/mac802154/main.c +++ b/net/mac802154/main.c @@ -1,17 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2007-2012 Siemens AG * * Written by: * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> - * - * 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. */ #include <linux/kernel.h> @@ -28,9 +20,9 @@ #include "ieee802154_i.h" #include "cfg.h" -static void ieee802154_tasklet_handler(unsigned long data) +static void ieee802154_tasklet_handler(struct tasklet_struct *t) { - struct ieee802154_local *local = (struct ieee802154_local *)data; + struct ieee802154_local *local = from_tasklet(local, t, tasklet); struct sk_buff *skb; while ((skb = skb_dequeue(&local->skb_queue))) { @@ -97,15 +89,21 @@ ieee802154_alloc_hw(size_t priv_data_len, const struct ieee802154_ops *ops) local->ops = ops; INIT_LIST_HEAD(&local->interfaces); + INIT_LIST_HEAD(&local->rx_beacon_list); + INIT_LIST_HEAD(&local->rx_mac_cmd_list); mutex_init(&local->iflist_mtx); - tasklet_init(&local->tasklet, - ieee802154_tasklet_handler, - (unsigned long)local); + tasklet_setup(&local->tasklet, ieee802154_tasklet_handler); skb_queue_head_init(&local->skb_queue); - INIT_WORK(&local->tx_work, ieee802154_xmit_worker); + INIT_WORK(&local->sync_tx_work, ieee802154_xmit_sync_worker); + INIT_DELAYED_WORK(&local->scan_work, mac802154_scan_worker); + INIT_WORK(&local->rx_beacon_work, mac802154_rx_beacon_worker); + INIT_DELAYED_WORK(&local->beacon_work, mac802154_beacon_worker); + INIT_WORK(&local->rx_mac_cmd_work, mac802154_rx_mac_cmd_worker); + + init_completion(&local->assoc_done); /* init supported flags with 802.15.4 default ranges */ phy->supported.max_minbe = 8; @@ -117,12 +115,59 @@ ieee802154_alloc_hw(size_t priv_data_len, const struct ieee802154_ops *ops) phy->supported.lbt = NL802154_SUPPORTED_BOOL_FALSE; /* always supported */ - phy->supported.iftypes = BIT(NL802154_IFTYPE_NODE); + phy->supported.iftypes = BIT(NL802154_IFTYPE_NODE) | BIT(NL802154_IFTYPE_COORD); return &local->hw; } EXPORT_SYMBOL(ieee802154_alloc_hw); +void ieee802154_configure_durations(struct wpan_phy *phy, + unsigned int page, unsigned int channel) +{ + u32 duration = 0; + + switch (page) { + case 0: + if (BIT(channel) & 0x1) + /* 868 MHz BPSK 802.15.4-2003: 20 ksym/s */ + duration = 50 * NSEC_PER_USEC; + else if (BIT(channel) & 0x7FE) + /* 915 MHz BPSK 802.15.4-2003: 40 ksym/s */ + duration = 25 * NSEC_PER_USEC; + else if (BIT(channel) & 0x7FFF800) + /* 2400 MHz O-QPSK 802.15.4-2006: 62.5 ksym/s */ + duration = 16 * NSEC_PER_USEC; + break; + case 2: + if (BIT(channel) & 0x1) + /* 868 MHz O-QPSK 802.15.4-2006: 25 ksym/s */ + duration = 40 * NSEC_PER_USEC; + else if (BIT(channel) & 0x7FE) + /* 915 MHz O-QPSK 802.15.4-2006: 62.5 ksym/s */ + duration = 16 * NSEC_PER_USEC; + break; + case 3: + if (BIT(channel) & 0x3FFF) + /* 2.4 GHz CSS 802.15.4a-2007: 1/6 Msym/s */ + duration = 6 * NSEC_PER_USEC; + break; + default: + break; + } + + if (!duration) { + pr_debug("Unknown PHY symbol duration\n"); + return; + } + + phy->symbol_duration = duration; + phy->lifs_period = + (IEEE802154_LIFS_PERIOD * phy->symbol_duration) / NSEC_PER_USEC; + phy->sifs_period = + (IEEE802154_SIFS_PERIOD * phy->symbol_duration) / NSEC_PER_USEC; +} +EXPORT_SYMBOL(ieee802154_configure_durations); + void ieee802154_free_hw(struct ieee802154_hw *hw) { struct ieee802154_local *local = hw_to_local(hw); @@ -141,15 +186,16 @@ static void ieee802154_setup_wpan_phy_pib(struct wpan_phy *wpan_phy) * Should be done when all drivers sets this value. */ - wpan_phy->lifs_period = IEEE802154_LIFS_PERIOD * - wpan_phy->symbol_duration; - wpan_phy->sifs_period = IEEE802154_SIFS_PERIOD * - wpan_phy->symbol_duration; + wpan_phy->lifs_period = (IEEE802154_LIFS_PERIOD * + wpan_phy->symbol_duration) / NSEC_PER_USEC; + wpan_phy->sifs_period = (IEEE802154_SIFS_PERIOD * + wpan_phy->symbol_duration) / NSEC_PER_USEC; } int ieee802154_register_hw(struct ieee802154_hw *hw) { struct ieee802154_local *local = hw_to_local(hw); + char mac_wq_name[IFNAMSIZ + 10] = {}; struct net_device *dev; int rc = -ENOSYS; @@ -160,13 +206,23 @@ int ieee802154_register_hw(struct ieee802154_hw *hw) goto out; } - hrtimer_init(&local->ifs_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - local->ifs_timer.function = ieee802154_xmit_ifs_timer; + snprintf(mac_wq_name, IFNAMSIZ + 10, "%s-mac-cmds", wpan_phy_name(local->phy)); + local->mac_wq = create_singlethread_workqueue(mac_wq_name); + if (!local->mac_wq) { + rc = -ENOMEM; + goto out_wq; + } + + hrtimer_setup(&local->ifs_timer, ieee802154_xmit_ifs_timer, CLOCK_MONOTONIC, + HRTIMER_MODE_REL); wpan_phy_set_dev(local->phy, local->hw.parent); ieee802154_setup_wpan_phy_pib(local->phy); + ieee802154_configure_durations(local->phy, local->phy->current_page, + local->phy->current_channel); + if (!(hw->flags & IEEE802154_HW_CSMA_PARAMS)) { local->phy->supported.min_csma_backoffs = 4; local->phy->supported.max_csma_backoffs = 4; @@ -186,7 +242,7 @@ int ieee802154_register_hw(struct ieee802154_hw *hw) rc = wpan_phy_register(local->phy); if (rc < 0) - goto out_wq; + goto out_mac_wq; rtnl_lock(); @@ -205,6 +261,8 @@ int ieee802154_register_hw(struct ieee802154_hw *hw) out_phy: wpan_phy_unregister(local->phy); +out_mac_wq: + destroy_workqueue(local->mac_wq); out_wq: destroy_workqueue(local->workqueue); out: @@ -225,6 +283,7 @@ void ieee802154_unregister_hw(struct ieee802154_hw *hw) rtnl_unlock(); + destroy_workqueue(local->mac_wq); destroy_workqueue(local->workqueue); wpan_phy_unregister(local->phy); } |