e85498b21d
We set the initial CT (Temperature control) value to 110 degrees. If the chip goes over that threshold, we hard block the device which will turn it down. At the same time we schedule a 30 seconds delayed work that unblock the device (and userspace is supposed to bring it back up), hoping that the chip will have cooled down by then... Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
181 lines
4.2 KiB
C
181 lines
4.2 KiB
C
/*
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* Intel Wireless Multicomm 3200 WiFi driver
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*
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* Copyright (C) 2009 Intel Corporation <ilw@linux.intel.com>
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* Samuel Ortiz <samuel.ortiz@intel.com>
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* Zhu Yi <yi.zhu@intel.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version
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* 2 as published by the Free Software Foundation.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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*/
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/*
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* This is the netdev related hooks for iwm.
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*
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* Some interesting code paths:
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*
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* iwm_open() (Called at netdev interface bringup time)
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* -> iwm_up() (main.c)
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* -> iwm_bus_enable()
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* -> if_sdio_enable() (In case of an SDIO bus)
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* -> sdio_enable_func()
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* -> iwm_notif_wait(BARKER_REBOOT) (wait for reboot barker)
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* -> iwm_notif_wait(ACK_BARKER) (wait for ACK barker)
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* -> iwm_load_fw() (fw.c)
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* -> iwm_load_umac()
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* -> iwm_load_lmac() (Calibration LMAC)
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* -> iwm_load_lmac() (Operational LMAC)
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* -> iwm_send_umac_config()
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*
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* iwm_stop() (Called at netdev interface bringdown time)
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* -> iwm_down()
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* -> iwm_bus_disable()
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* -> if_sdio_disable() (In case of an SDIO bus)
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* -> sdio_disable_func()
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*/
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#include <linux/netdevice.h>
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#include "iwm.h"
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#include "commands.h"
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#include "cfg80211.h"
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#include "debug.h"
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static int iwm_open(struct net_device *ndev)
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{
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struct iwm_priv *iwm = ndev_to_iwm(ndev);
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return iwm_up(iwm);
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}
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static int iwm_stop(struct net_device *ndev)
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{
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struct iwm_priv *iwm = ndev_to_iwm(ndev);
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return iwm_down(iwm);
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}
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/*
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* iwm AC to queue mapping
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*
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* AC_VO -> queue 3
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* AC_VI -> queue 2
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* AC_BE -> queue 1
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* AC_BK -> queue 0
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*/
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static const u16 iwm_1d_to_queue[8] = { 1, 0, 0, 1, 2, 2, 3, 3 };
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static u16 iwm_select_queue(struct net_device *dev, struct sk_buff *skb)
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{
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skb->priority = cfg80211_classify8021d(skb);
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return iwm_1d_to_queue[skb->priority];
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}
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static const struct net_device_ops iwm_netdev_ops = {
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.ndo_open = iwm_open,
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.ndo_stop = iwm_stop,
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.ndo_start_xmit = iwm_xmit_frame,
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.ndo_select_queue = iwm_select_queue,
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};
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void *iwm_if_alloc(int sizeof_bus, struct device *dev,
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struct iwm_if_ops *if_ops)
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{
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struct net_device *ndev;
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struct wireless_dev *wdev;
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struct iwm_priv *iwm;
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int ret = 0;
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wdev = iwm_wdev_alloc(sizeof_bus, dev);
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if (IS_ERR(wdev))
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return wdev;
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iwm = wdev_to_iwm(wdev);
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iwm->bus_ops = if_ops;
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iwm->wdev = wdev;
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ret = iwm_priv_init(iwm);
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if (ret) {
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dev_err(dev, "failed to init iwm_priv\n");
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goto out_wdev;
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}
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wdev->iftype = iwm_mode_to_nl80211_iftype(iwm->conf.mode);
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ndev = alloc_netdev_mq(0, "wlan%d", ether_setup, IWM_TX_QUEUES);
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if (!ndev) {
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dev_err(dev, "no memory for network device instance\n");
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goto out_priv;
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}
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ndev->netdev_ops = &iwm_netdev_ops;
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ndev->ieee80211_ptr = wdev;
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SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy));
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wdev->netdev = ndev;
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iwm->umac_profile = kmalloc(sizeof(struct iwm_umac_profile),
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GFP_KERNEL);
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if (!iwm->umac_profile) {
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dev_err(dev, "Couldn't alloc memory for profile\n");
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goto out_profile;
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}
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iwm_init_default_profile(iwm, iwm->umac_profile);
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return iwm;
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out_profile:
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free_netdev(ndev);
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out_priv:
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iwm_priv_deinit(iwm);
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out_wdev:
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iwm_wdev_free(iwm);
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return ERR_PTR(ret);
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}
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void iwm_if_free(struct iwm_priv *iwm)
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{
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if (!iwm_to_ndev(iwm))
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return;
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cancel_delayed_work_sync(&iwm->ct_kill_delay);
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free_netdev(iwm_to_ndev(iwm));
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iwm_priv_deinit(iwm);
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kfree(iwm->umac_profile);
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iwm->umac_profile = NULL;
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iwm_wdev_free(iwm);
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}
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int iwm_if_add(struct iwm_priv *iwm)
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{
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struct net_device *ndev = iwm_to_ndev(iwm);
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int ret;
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ret = register_netdev(ndev);
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if (ret < 0) {
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dev_err(&ndev->dev, "Failed to register netdev: %d\n", ret);
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return ret;
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}
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return 0;
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}
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void iwm_if_remove(struct iwm_priv *iwm)
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{
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unregister_netdev(iwm_to_ndev(iwm));
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}
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