2009-05-21 21:20:45 +08:00
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/*
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* Intel Wireless Multicomm 3200 WiFi driver
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*
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* Copyright (C) 2009 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*
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* 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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*/
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#include <linux/kernel.h>
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#include <linux/netdevice.h>
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2009-10-07 21:09:06 +08:00
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#include <linux/sched.h>
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2009-05-21 21:20:45 +08:00
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#include <linux/ieee80211.h>
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#include <linux/wireless.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 16:04:11 +08:00
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#include <linux/slab.h>
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2011-09-16 07:46:05 +08:00
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#include <linux/moduleparam.h>
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2009-05-21 21:20:45 +08:00
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#include "iwm.h"
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#include "debug.h"
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#include "bus.h"
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#include "umac.h"
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#include "commands.h"
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#include "hal.h"
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#include "fw.h"
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#include "rx.h"
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static struct iwm_conf def_iwm_conf = {
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.sdio_ior_timeout = 5000,
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2009-09-01 21:14:04 +08:00
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.calib_map = BIT(CALIB_CFG_DC_IDX) |
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BIT(CALIB_CFG_LO_IDX) |
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BIT(CALIB_CFG_TX_IQ_IDX) |
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BIT(CALIB_CFG_RX_IQ_IDX) |
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BIT(SHILOH_PHY_CALIBRATE_BASE_BAND_CMD),
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.expected_calib_map = BIT(PHY_CALIBRATE_DC_CMD) |
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2009-05-21 21:20:45 +08:00
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BIT(PHY_CALIBRATE_LO_CMD) |
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BIT(PHY_CALIBRATE_TX_IQ_CMD) |
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BIT(PHY_CALIBRATE_RX_IQ_CMD) |
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BIT(SHILOH_PHY_CALIBRATE_BASE_BAND_CMD),
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2009-10-16 13:18:48 +08:00
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.ct_kill_entry = 110,
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.ct_kill_exit = 110,
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2009-05-21 21:20:45 +08:00
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.reset_on_fatal_err = 1,
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.auto_connect = 1,
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.enable_qos = 1,
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.mode = UMAC_MODE_BSS,
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/* UMAC configuration */
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.power_index = 0,
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.frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD,
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.rts_threshold = IEEE80211_MAX_RTS_THRESHOLD,
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.cts_to_self = 0,
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.assoc_timeout = 2,
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.roam_timeout = 10,
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2009-11-24 11:33:29 +08:00
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.wireless_mode = WIRELESS_MODE_11A | WIRELESS_MODE_11G |
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WIRELESS_MODE_11N,
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2009-05-21 21:20:45 +08:00
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/* IBSS */
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.ibss_band = UMAC_BAND_2GHZ,
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.ibss_channel = 1,
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.mac_addr = {0x00, 0x02, 0xb3, 0x01, 0x02, 0x03},
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};
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2011-12-19 22:08:01 +08:00
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static bool modparam_reset;
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2009-05-21 21:20:45 +08:00
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module_param_named(reset, modparam_reset, bool, 0644);
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MODULE_PARM_DESC(reset, "reset on firmware errors (default 0 [not reset])");
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2011-12-19 22:08:01 +08:00
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static bool modparam_wimax_enable = true;
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2009-12-03 18:40:18 +08:00
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module_param_named(wimax_enable, modparam_wimax_enable, bool, 0644);
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MODULE_PARM_DESC(wimax_enable, "Enable wimax core (default 1 [wimax enabled])");
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2009-05-21 21:20:45 +08:00
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int iwm_mode_to_nl80211_iftype(int mode)
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{
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switch (mode) {
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case UMAC_MODE_BSS:
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return NL80211_IFTYPE_STATION;
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case UMAC_MODE_IBSS:
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return NL80211_IFTYPE_ADHOC;
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default:
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return NL80211_IFTYPE_UNSPECIFIED;
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}
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return 0;
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}
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static void iwm_statistics_request(struct work_struct *work)
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{
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struct iwm_priv *iwm =
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container_of(work, struct iwm_priv, stats_request.work);
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iwm_send_umac_stats_req(iwm, 0);
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}
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2009-09-01 21:14:02 +08:00
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static void iwm_disconnect_work(struct work_struct *work)
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{
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struct iwm_priv *iwm =
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container_of(work, struct iwm_priv, disconnect.work);
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if (iwm->umac_profile_active)
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iwm_invalidate_mlme_profile(iwm);
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clear_bit(IWM_STATUS_ASSOCIATED, &iwm->status);
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2011-12-19 21:56:45 +08:00
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iwm->umac_profile_active = false;
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2009-09-01 21:14:02 +08:00
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memset(iwm->bssid, 0, ETH_ALEN);
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iwm->channel = 0;
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iwm_link_off(iwm);
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wake_up_interruptible(&iwm->mlme_queue);
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cfg80211_disconnected(iwm_to_ndev(iwm), 0, NULL, 0, GFP_KERNEL);
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}
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2009-10-16 13:18:48 +08:00
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static void iwm_ct_kill_work(struct work_struct *work)
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{
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struct iwm_priv *iwm =
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container_of(work, struct iwm_priv, ct_kill_delay.work);
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struct wiphy *wiphy = iwm_to_wiphy(iwm);
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IWM_INFO(iwm, "CT kill delay timeout\n");
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wiphy_rfkill_set_hw_state(wiphy, false);
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}
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2009-09-01 21:14:03 +08:00
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static int __iwm_up(struct iwm_priv *iwm);
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static int __iwm_down(struct iwm_priv *iwm);
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2009-06-16 03:59:49 +08:00
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2009-05-21 21:20:45 +08:00
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static void iwm_reset_worker(struct work_struct *work)
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{
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struct iwm_priv *iwm;
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struct iwm_umac_profile *profile = NULL;
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int uninitialized_var(ret), retry = 0;
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iwm = container_of(work, struct iwm_priv, reset_worker);
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2009-06-16 03:59:49 +08:00
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/*
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* XXX: The iwm->mutex is introduced purely for this reset work,
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* because the other users for iwm_up and iwm_down are only netdev
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* ndo_open and ndo_stop which are already protected by rtnl.
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* Please remove iwm->mutex together if iwm_reset_worker() is not
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* required in the future.
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*/
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if (!mutex_trylock(&iwm->mutex)) {
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IWM_WARN(iwm, "We are in the middle of interface bringing "
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"UP/DOWN. Skip driver resetting.\n");
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return;
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}
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2009-05-21 21:20:45 +08:00
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if (iwm->umac_profile_active) {
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profile = kmalloc(sizeof(struct iwm_umac_profile), GFP_KERNEL);
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if (profile)
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memcpy(profile, iwm->umac_profile, sizeof(*profile));
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else
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IWM_ERR(iwm, "Couldn't alloc memory for profile\n");
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}
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|
2009-06-16 03:59:49 +08:00
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__iwm_down(iwm);
|
2009-05-21 21:20:45 +08:00
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while (retry++ < 3) {
|
2009-06-16 03:59:49 +08:00
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ret = __iwm_up(iwm);
|
2009-05-21 21:20:45 +08:00
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if (!ret)
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break;
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schedule_timeout_uninterruptible(10 * HZ);
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}
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if (ret) {
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IWM_WARN(iwm, "iwm_up() failed: %d\n", ret);
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kfree(profile);
|
2009-06-16 03:59:49 +08:00
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goto out;
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2009-05-21 21:20:45 +08:00
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}
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if (profile) {
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IWM_DBG_MLME(iwm, DBG, "Resend UMAC profile\n");
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memcpy(iwm->umac_profile, profile, sizeof(*profile));
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iwm_send_mlme_profile(iwm);
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kfree(profile);
|
2009-09-01 21:14:05 +08:00
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} else
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clear_bit(IWM_STATUS_RESETTING, &iwm->status);
|
2009-06-16 03:59:49 +08:00
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out:
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mutex_unlock(&iwm->mutex);
|
2009-05-21 21:20:45 +08:00
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}
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|
2009-10-16 13:18:57 +08:00
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static void iwm_auth_retry_worker(struct work_struct *work)
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{
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struct iwm_priv *iwm;
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int i, ret;
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iwm = container_of(work, struct iwm_priv, auth_retry_worker);
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|
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|
if (iwm->umac_profile_active) {
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|
|
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ret = iwm_invalidate_mlme_profile(iwm);
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|
|
if (ret < 0)
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|
|
return;
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|
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}
|
|
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|
|
|
|
|
iwm->umac_profile->sec.auth_type = UMAC_AUTH_TYPE_LEGACY_PSK;
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|
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ret = iwm_send_mlme_profile(iwm);
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if (ret < 0)
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|
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return;
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|
|
|
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|
|
|
for (i = 0; i < IWM_NUM_KEYS; i++)
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|
|
|
if (iwm->keys[i].key_len)
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|
|
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iwm_set_key(iwm, 0, &iwm->keys[i]);
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|
|
|
|
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|
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iwm_set_tx_key(iwm, iwm->default_key);
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|
|
|
}
|
|
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|
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|
|
|
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|
|
2009-05-21 21:20:45 +08:00
|
|
|
static void iwm_watchdog(unsigned long data)
|
|
|
|
{
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|
|
|
struct iwm_priv *iwm = (struct iwm_priv *)data;
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|
|
|
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|
|
IWM_WARN(iwm, "Watchdog expired: UMAC stalls!\n");
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|
|
|
|
|
|
|
if (modparam_reset)
|
2009-09-01 21:14:05 +08:00
|
|
|
iwm_resetting(iwm);
|
2009-05-21 21:20:45 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
int iwm_priv_init(struct iwm_priv *iwm)
|
|
|
|
{
|
2009-11-24 11:33:31 +08:00
|
|
|
int i, j;
|
2009-05-21 21:20:45 +08:00
|
|
|
char name[32];
|
|
|
|
|
|
|
|
iwm->status = 0;
|
|
|
|
INIT_LIST_HEAD(&iwm->pending_notif);
|
|
|
|
init_waitqueue_head(&iwm->notif_queue);
|
|
|
|
init_waitqueue_head(&iwm->nonwifi_queue);
|
2009-06-16 03:59:51 +08:00
|
|
|
init_waitqueue_head(&iwm->wifi_ntfy_queue);
|
2009-05-21 21:20:45 +08:00
|
|
|
init_waitqueue_head(&iwm->mlme_queue);
|
|
|
|
memcpy(&iwm->conf, &def_iwm_conf, sizeof(struct iwm_conf));
|
|
|
|
spin_lock_init(&iwm->tx_credit.lock);
|
|
|
|
INIT_LIST_HEAD(&iwm->wifi_pending_cmd);
|
|
|
|
INIT_LIST_HEAD(&iwm->nonwifi_pending_cmd);
|
|
|
|
iwm->wifi_seq_num = UMAC_WIFI_SEQ_NUM_BASE;
|
|
|
|
iwm->nonwifi_seq_num = UMAC_NONWIFI_SEQ_NUM_BASE;
|
|
|
|
spin_lock_init(&iwm->cmd_lock);
|
|
|
|
iwm->scan_id = 1;
|
|
|
|
INIT_DELAYED_WORK(&iwm->stats_request, iwm_statistics_request);
|
2009-09-01 21:14:02 +08:00
|
|
|
INIT_DELAYED_WORK(&iwm->disconnect, iwm_disconnect_work);
|
2009-10-16 13:18:48 +08:00
|
|
|
INIT_DELAYED_WORK(&iwm->ct_kill_delay, iwm_ct_kill_work);
|
2009-05-21 21:20:45 +08:00
|
|
|
INIT_WORK(&iwm->reset_worker, iwm_reset_worker);
|
2009-10-16 13:18:57 +08:00
|
|
|
INIT_WORK(&iwm->auth_retry_worker, iwm_auth_retry_worker);
|
2009-05-21 21:20:45 +08:00
|
|
|
INIT_LIST_HEAD(&iwm->bss_list);
|
|
|
|
|
|
|
|
skb_queue_head_init(&iwm->rx_list);
|
|
|
|
INIT_LIST_HEAD(&iwm->rx_tickets);
|
2010-02-25 14:15:28 +08:00
|
|
|
spin_lock_init(&iwm->ticket_lock);
|
|
|
|
for (i = 0; i < IWM_RX_ID_HASH; i++) {
|
2009-05-21 21:20:45 +08:00
|
|
|
INIT_LIST_HEAD(&iwm->rx_packets[i]);
|
2010-02-25 14:15:28 +08:00
|
|
|
spin_lock_init(&iwm->packet_lock[i]);
|
|
|
|
}
|
2009-05-21 21:20:45 +08:00
|
|
|
|
|
|
|
INIT_WORK(&iwm->rx_worker, iwm_rx_worker);
|
|
|
|
|
|
|
|
iwm->rx_wq = create_singlethread_workqueue(KBUILD_MODNAME "_rx");
|
|
|
|
if (!iwm->rx_wq)
|
|
|
|
return -EAGAIN;
|
|
|
|
|
|
|
|
for (i = 0; i < IWM_TX_QUEUES; i++) {
|
|
|
|
INIT_WORK(&iwm->txq[i].worker, iwm_tx_worker);
|
|
|
|
snprintf(name, 32, KBUILD_MODNAME "_tx_%d", i);
|
|
|
|
iwm->txq[i].id = i;
|
|
|
|
iwm->txq[i].wq = create_singlethread_workqueue(name);
|
|
|
|
if (!iwm->txq[i].wq)
|
|
|
|
return -EAGAIN;
|
|
|
|
|
|
|
|
skb_queue_head_init(&iwm->txq[i].queue);
|
2009-11-24 11:33:31 +08:00
|
|
|
skb_queue_head_init(&iwm->txq[i].stopped_queue);
|
|
|
|
spin_lock_init(&iwm->txq[i].lock);
|
2009-05-21 21:20:45 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < IWM_NUM_KEYS; i++)
|
|
|
|
memset(&iwm->keys[i], 0, sizeof(struct iwm_key));
|
|
|
|
|
2009-06-16 03:59:52 +08:00
|
|
|
iwm->default_key = -1;
|
2009-05-21 21:20:45 +08:00
|
|
|
|
2009-11-24 11:33:31 +08:00
|
|
|
for (i = 0; i < IWM_STA_TABLE_NUM; i++)
|
|
|
|
for (j = 0; j < IWM_UMAC_TID_NR; j++) {
|
|
|
|
mutex_init(&iwm->sta_table[i].tid_info[j].mutex);
|
|
|
|
iwm->sta_table[i].tid_info[j].stopped = false;
|
|
|
|
}
|
|
|
|
|
2009-05-21 21:20:45 +08:00
|
|
|
init_timer(&iwm->watchdog);
|
|
|
|
iwm->watchdog.function = iwm_watchdog;
|
|
|
|
iwm->watchdog.data = (unsigned long)iwm;
|
2009-06-16 03:59:49 +08:00
|
|
|
mutex_init(&iwm->mutex);
|
2009-05-21 21:20:45 +08:00
|
|
|
|
2009-09-01 21:14:06 +08:00
|
|
|
iwm->last_fw_err = kzalloc(sizeof(struct iwm_fw_error_hdr),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (iwm->last_fw_err == NULL)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
2009-05-21 21:20:45 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-06-16 03:36:13 +08:00
|
|
|
void iwm_priv_deinit(struct iwm_priv *iwm)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < IWM_TX_QUEUES; i++)
|
|
|
|
destroy_workqueue(iwm->txq[i].wq);
|
|
|
|
|
|
|
|
destroy_workqueue(iwm->rx_wq);
|
2009-09-01 21:14:06 +08:00
|
|
|
kfree(iwm->last_fw_err);
|
2009-06-16 03:36:13 +08:00
|
|
|
}
|
|
|
|
|
2009-05-21 21:20:45 +08:00
|
|
|
/*
|
|
|
|
* We reset all the structures, and we reset the UMAC.
|
|
|
|
* After calling this routine, you're expected to reload
|
|
|
|
* the firmware.
|
|
|
|
*/
|
|
|
|
void iwm_reset(struct iwm_priv *iwm)
|
|
|
|
{
|
|
|
|
struct iwm_notif *notif, *next;
|
|
|
|
|
|
|
|
if (test_bit(IWM_STATUS_READY, &iwm->status))
|
|
|
|
iwm_target_reset(iwm);
|
|
|
|
|
2009-09-01 21:14:05 +08:00
|
|
|
if (test_bit(IWM_STATUS_RESETTING, &iwm->status)) {
|
|
|
|
iwm->status = 0;
|
|
|
|
set_bit(IWM_STATUS_RESETTING, &iwm->status);
|
|
|
|
} else
|
|
|
|
iwm->status = 0;
|
2009-05-21 21:20:45 +08:00
|
|
|
iwm->scan_id = 1;
|
|
|
|
|
|
|
|
list_for_each_entry_safe(notif, next, &iwm->pending_notif, pending) {
|
|
|
|
list_del(¬if->pending);
|
|
|
|
kfree(notif->buf);
|
|
|
|
kfree(notif);
|
|
|
|
}
|
|
|
|
|
|
|
|
iwm_cmd_flush(iwm);
|
|
|
|
|
|
|
|
flush_workqueue(iwm->rx_wq);
|
|
|
|
|
|
|
|
iwm_link_off(iwm);
|
|
|
|
}
|
|
|
|
|
2009-09-01 21:14:05 +08:00
|
|
|
void iwm_resetting(struct iwm_priv *iwm)
|
|
|
|
{
|
|
|
|
set_bit(IWM_STATUS_RESETTING, &iwm->status);
|
|
|
|
|
|
|
|
schedule_work(&iwm->reset_worker);
|
|
|
|
}
|
|
|
|
|
2009-05-21 21:20:45 +08:00
|
|
|
/*
|
|
|
|
* Notification code:
|
|
|
|
*
|
|
|
|
* We're faced with the following issue: Any host command can
|
|
|
|
* have an answer or not, and if there's an answer to expect,
|
|
|
|
* it can be treated synchronously or asynchronously.
|
|
|
|
* To work around the synchronous answer case, we implemented
|
|
|
|
* our notification mechanism.
|
|
|
|
* When a code path needs to wait for a command response
|
|
|
|
* synchronously, it calls notif_handle(), which waits for the
|
|
|
|
* right notification to show up, and then process it. Before
|
|
|
|
* starting to wait, it registered as a waiter for this specific
|
|
|
|
* answer (by toggling a bit in on of the handler_map), so that
|
|
|
|
* the rx code knows that it needs to send a notification to the
|
|
|
|
* waiting processes. It does so by calling iwm_notif_send(),
|
|
|
|
* which adds the notification to the pending notifications list,
|
|
|
|
* and then wakes the waiting processes up.
|
|
|
|
*/
|
|
|
|
int iwm_notif_send(struct iwm_priv *iwm, struct iwm_wifi_cmd *cmd,
|
|
|
|
u8 cmd_id, u8 source, u8 *buf, unsigned long buf_size)
|
|
|
|
{
|
|
|
|
struct iwm_notif *notif;
|
|
|
|
|
|
|
|
notif = kzalloc(sizeof(struct iwm_notif), GFP_KERNEL);
|
|
|
|
if (!notif) {
|
|
|
|
IWM_ERR(iwm, "Couldn't alloc memory for notification\n");
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
INIT_LIST_HEAD(¬if->pending);
|
|
|
|
notif->cmd = cmd;
|
|
|
|
notif->cmd_id = cmd_id;
|
|
|
|
notif->src = source;
|
|
|
|
notif->buf = kzalloc(buf_size, GFP_KERNEL);
|
|
|
|
if (!notif->buf) {
|
|
|
|
IWM_ERR(iwm, "Couldn't alloc notification buffer\n");
|
|
|
|
kfree(notif);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
notif->buf_size = buf_size;
|
|
|
|
memcpy(notif->buf, buf, buf_size);
|
|
|
|
list_add_tail(¬if->pending, &iwm->pending_notif);
|
|
|
|
|
|
|
|
wake_up_interruptible(&iwm->notif_queue);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct iwm_notif *iwm_notif_find(struct iwm_priv *iwm, u32 cmd,
|
|
|
|
u8 source)
|
|
|
|
{
|
2010-02-25 14:15:26 +08:00
|
|
|
struct iwm_notif *notif;
|
2009-05-21 21:20:45 +08:00
|
|
|
|
2010-02-25 14:15:26 +08:00
|
|
|
list_for_each_entry(notif, &iwm->pending_notif, pending) {
|
2009-05-21 21:20:45 +08:00
|
|
|
if ((notif->cmd_id == cmd) && (notif->src == source)) {
|
|
|
|
list_del(¬if->pending);
|
|
|
|
return notif;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct iwm_notif *iwm_notif_wait(struct iwm_priv *iwm, u32 cmd,
|
|
|
|
u8 source, long timeout)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
struct iwm_notif *notif;
|
|
|
|
unsigned long *map = NULL;
|
|
|
|
|
|
|
|
switch (source) {
|
|
|
|
case IWM_SRC_LMAC:
|
|
|
|
map = &iwm->lmac_handler_map[0];
|
|
|
|
break;
|
|
|
|
case IWM_SRC_UMAC:
|
|
|
|
map = &iwm->umac_handler_map[0];
|
|
|
|
break;
|
|
|
|
case IWM_SRC_UDMA:
|
|
|
|
map = &iwm->udma_handler_map[0];
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
set_bit(cmd, map);
|
|
|
|
|
|
|
|
ret = wait_event_interruptible_timeout(iwm->notif_queue,
|
|
|
|
((notif = iwm_notif_find(iwm, cmd, source)) != NULL),
|
|
|
|
timeout);
|
|
|
|
clear_bit(cmd, map);
|
|
|
|
|
|
|
|
if (!ret)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
return notif;
|
|
|
|
}
|
|
|
|
|
|
|
|
int iwm_notif_handle(struct iwm_priv *iwm, u32 cmd, u8 source, long timeout)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
struct iwm_notif *notif;
|
|
|
|
|
|
|
|
notif = iwm_notif_wait(iwm, cmd, source, timeout);
|
|
|
|
if (!notif)
|
|
|
|
return -ETIME;
|
|
|
|
|
|
|
|
ret = iwm_rx_handle_resp(iwm, notif->buf, notif->buf_size, notif->cmd);
|
|
|
|
kfree(notif->buf);
|
|
|
|
kfree(notif);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwm_config_boot_params(struct iwm_priv *iwm)
|
|
|
|
{
|
|
|
|
struct iwm_udma_nonwifi_cmd target_cmd;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
/* check Wimax is off and config debug monitor */
|
2009-12-03 18:40:18 +08:00
|
|
|
if (!modparam_wimax_enable) {
|
2009-05-21 21:20:45 +08:00
|
|
|
u32 data1 = 0x1f;
|
|
|
|
u32 addr1 = 0x606BE258;
|
|
|
|
|
|
|
|
u32 data2_set = 0x0;
|
|
|
|
u32 data2_clr = 0x1;
|
|
|
|
u32 addr2 = 0x606BE100;
|
|
|
|
|
|
|
|
u32 data3 = 0x1;
|
|
|
|
u32 addr3 = 0x606BEC00;
|
|
|
|
|
|
|
|
target_cmd.resp = 0;
|
|
|
|
target_cmd.handle_by_hw = 0;
|
|
|
|
target_cmd.eop = 1;
|
|
|
|
|
|
|
|
target_cmd.opcode = UMAC_HDI_OUT_OPCODE_WRITE;
|
|
|
|
target_cmd.addr = cpu_to_le32(addr1);
|
|
|
|
target_cmd.op1_sz = cpu_to_le32(sizeof(u32));
|
|
|
|
target_cmd.op2 = 0;
|
|
|
|
|
|
|
|
ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data1);
|
|
|
|
if (ret < 0) {
|
|
|
|
IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
target_cmd.opcode = UMAC_HDI_OUT_OPCODE_READ_MODIFY_WRITE;
|
|
|
|
target_cmd.addr = cpu_to_le32(addr2);
|
|
|
|
target_cmd.op1_sz = cpu_to_le32(data2_set);
|
|
|
|
target_cmd.op2 = cpu_to_le32(data2_clr);
|
|
|
|
|
|
|
|
ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data1);
|
|
|
|
if (ret < 0) {
|
|
|
|
IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
target_cmd.opcode = UMAC_HDI_OUT_OPCODE_WRITE;
|
|
|
|
target_cmd.addr = cpu_to_le32(addr3);
|
|
|
|
target_cmd.op1_sz = cpu_to_le32(sizeof(u32));
|
|
|
|
target_cmd.op2 = 0;
|
|
|
|
|
|
|
|
ret = iwm_hal_send_target_cmd(iwm, &target_cmd, &data3);
|
|
|
|
if (ret < 0) {
|
|
|
|
IWM_ERR(iwm, "iwm_hal_send_target_cmd failed\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void iwm_init_default_profile(struct iwm_priv *iwm,
|
|
|
|
struct iwm_umac_profile *profile)
|
|
|
|
{
|
|
|
|
memset(profile, 0, sizeof(struct iwm_umac_profile));
|
|
|
|
|
|
|
|
profile->sec.auth_type = UMAC_AUTH_TYPE_OPEN;
|
|
|
|
profile->sec.flags = UMAC_SEC_FLG_LEGACY_PROFILE;
|
|
|
|
profile->sec.ucast_cipher = UMAC_CIPHER_TYPE_NONE;
|
|
|
|
profile->sec.mcast_cipher = UMAC_CIPHER_TYPE_NONE;
|
|
|
|
|
|
|
|
if (iwm->conf.enable_qos)
|
|
|
|
profile->flags |= cpu_to_le16(UMAC_PROFILE_QOS_ALLOWED);
|
|
|
|
|
|
|
|
profile->wireless_mode = iwm->conf.wireless_mode;
|
|
|
|
profile->mode = cpu_to_le32(iwm->conf.mode);
|
|
|
|
|
|
|
|
profile->ibss.atim = 0;
|
|
|
|
profile->ibss.beacon_interval = 100;
|
|
|
|
profile->ibss.join_only = 0;
|
|
|
|
profile->ibss.band = iwm->conf.ibss_band;
|
|
|
|
profile->ibss.channel = iwm->conf.ibss_channel;
|
|
|
|
}
|
|
|
|
|
|
|
|
void iwm_link_on(struct iwm_priv *iwm)
|
|
|
|
{
|
|
|
|
netif_carrier_on(iwm_to_ndev(iwm));
|
|
|
|
netif_tx_wake_all_queues(iwm_to_ndev(iwm));
|
|
|
|
|
|
|
|
iwm_send_umac_stats_req(iwm, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
void iwm_link_off(struct iwm_priv *iwm)
|
|
|
|
{
|
|
|
|
struct iw_statistics *wstats = &iwm->wstats;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
netif_tx_stop_all_queues(iwm_to_ndev(iwm));
|
|
|
|
netif_carrier_off(iwm_to_ndev(iwm));
|
|
|
|
|
|
|
|
for (i = 0; i < IWM_TX_QUEUES; i++) {
|
|
|
|
skb_queue_purge(&iwm->txq[i].queue);
|
2009-11-24 11:33:31 +08:00
|
|
|
skb_queue_purge(&iwm->txq[i].stopped_queue);
|
2009-05-21 21:20:45 +08:00
|
|
|
|
|
|
|
iwm->txq[i].concat_count = 0;
|
|
|
|
iwm->txq[i].concat_ptr = iwm->txq[i].concat_buf;
|
|
|
|
|
|
|
|
flush_workqueue(iwm->txq[i].wq);
|
|
|
|
}
|
|
|
|
|
|
|
|
iwm_rx_free(iwm);
|
|
|
|
|
2009-06-16 03:59:49 +08:00
|
|
|
cancel_delayed_work_sync(&iwm->stats_request);
|
2009-05-21 21:20:45 +08:00
|
|
|
memset(wstats, 0, sizeof(struct iw_statistics));
|
|
|
|
wstats->qual.updated = IW_QUAL_ALL_INVALID;
|
|
|
|
|
2009-07-20 11:47:45 +08:00
|
|
|
kfree(iwm->req_ie);
|
|
|
|
iwm->req_ie = NULL;
|
|
|
|
iwm->req_ie_len = 0;
|
|
|
|
kfree(iwm->resp_ie);
|
|
|
|
iwm->resp_ie = NULL;
|
|
|
|
iwm->resp_ie_len = 0;
|
|
|
|
|
2009-05-21 21:20:45 +08:00
|
|
|
del_timer_sync(&iwm->watchdog);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void iwm_bss_list_clean(struct iwm_priv *iwm)
|
|
|
|
{
|
|
|
|
struct iwm_bss_info *bss, *next;
|
|
|
|
|
|
|
|
list_for_each_entry_safe(bss, next, &iwm->bss_list, node) {
|
|
|
|
list_del(&bss->node);
|
|
|
|
kfree(bss->bss);
|
|
|
|
kfree(bss);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int iwm_channels_init(struct iwm_priv *iwm)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = iwm_send_umac_channel_list(iwm);
|
|
|
|
if (ret) {
|
|
|
|
IWM_ERR(iwm, "Send channel list failed\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST,
|
|
|
|
IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT);
|
|
|
|
if (ret) {
|
|
|
|
IWM_ERR(iwm, "Didn't get a channel list notification\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-09-01 21:14:03 +08:00
|
|
|
static int __iwm_up(struct iwm_priv *iwm)
|
2009-05-21 21:20:45 +08:00
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
struct iwm_notif *notif_reboot, *notif_ack = NULL;
|
2009-10-16 13:18:59 +08:00
|
|
|
struct wiphy *wiphy = iwm_to_wiphy(iwm);
|
2009-11-24 11:33:29 +08:00
|
|
|
u32 wireless_mode;
|
2009-05-21 21:20:45 +08:00
|
|
|
|
|
|
|
ret = iwm_bus_enable(iwm);
|
|
|
|
if (ret) {
|
|
|
|
IWM_ERR(iwm, "Couldn't enable function\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
iwm_rx_setup_handlers(iwm);
|
|
|
|
|
|
|
|
/* Wait for initial BARKER_REBOOT from hardware */
|
|
|
|
notif_reboot = iwm_notif_wait(iwm, IWM_BARKER_REBOOT_NOTIFICATION,
|
|
|
|
IWM_SRC_UDMA, 2 * HZ);
|
|
|
|
if (!notif_reboot) {
|
|
|
|
IWM_ERR(iwm, "Wait for REBOOT_BARKER timeout\n");
|
|
|
|
goto err_disable;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* We send the barker back */
|
|
|
|
ret = iwm_bus_send_chunk(iwm, notif_reboot->buf, 16);
|
|
|
|
if (ret) {
|
|
|
|
IWM_ERR(iwm, "REBOOT barker response failed\n");
|
|
|
|
kfree(notif_reboot);
|
|
|
|
goto err_disable;
|
|
|
|
}
|
|
|
|
|
|
|
|
kfree(notif_reboot->buf);
|
|
|
|
kfree(notif_reboot);
|
|
|
|
|
|
|
|
/* Wait for ACK_BARKER from hardware */
|
|
|
|
notif_ack = iwm_notif_wait(iwm, IWM_ACK_BARKER_NOTIFICATION,
|
|
|
|
IWM_SRC_UDMA, 2 * HZ);
|
|
|
|
if (!notif_ack) {
|
|
|
|
IWM_ERR(iwm, "Wait for ACK_BARKER timeout\n");
|
|
|
|
goto err_disable;
|
|
|
|
}
|
|
|
|
|
|
|
|
kfree(notif_ack->buf);
|
|
|
|
kfree(notif_ack);
|
|
|
|
|
|
|
|
/* We start to config static boot parameters */
|
|
|
|
ret = iwm_config_boot_params(iwm);
|
|
|
|
if (ret) {
|
|
|
|
IWM_ERR(iwm, "Config boot parameters failed\n");
|
|
|
|
goto err_disable;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = iwm_read_mac(iwm, iwm_to_ndev(iwm)->dev_addr);
|
|
|
|
if (ret) {
|
|
|
|
IWM_ERR(iwm, "MAC reading failed\n");
|
|
|
|
goto err_disable;
|
|
|
|
}
|
2009-10-07 04:41:21 +08:00
|
|
|
memcpy(iwm_to_ndev(iwm)->perm_addr, iwm_to_ndev(iwm)->dev_addr,
|
|
|
|
ETH_ALEN);
|
2009-05-21 21:20:45 +08:00
|
|
|
|
|
|
|
/* We can load the FWs */
|
|
|
|
ret = iwm_load_fw(iwm);
|
|
|
|
if (ret) {
|
|
|
|
IWM_ERR(iwm, "FW loading failed\n");
|
|
|
|
goto err_disable;
|
|
|
|
}
|
|
|
|
|
2009-11-24 11:33:27 +08:00
|
|
|
ret = iwm_eeprom_fat_channels(iwm);
|
|
|
|
if (ret) {
|
|
|
|
IWM_ERR(iwm, "Couldnt read HT channels EEPROM entries\n");
|
|
|
|
goto err_fw;
|
|
|
|
}
|
|
|
|
|
2009-11-24 11:33:29 +08:00
|
|
|
/*
|
|
|
|
* Read our SKU capabilities.
|
2009-11-24 11:33:30 +08:00
|
|
|
* If it's valid, we AND the configured wireless mode with the
|
|
|
|
* device EEPROM value as the current profile wireless mode.
|
2009-11-24 11:33:29 +08:00
|
|
|
*/
|
|
|
|
wireless_mode = iwm_eeprom_wireless_mode(iwm);
|
|
|
|
if (wireless_mode) {
|
2009-11-24 11:33:30 +08:00
|
|
|
iwm->conf.wireless_mode &= wireless_mode;
|
2009-11-24 11:33:29 +08:00
|
|
|
if (iwm->umac_profile)
|
|
|
|
iwm->umac_profile->wireless_mode =
|
|
|
|
iwm->conf.wireless_mode;
|
|
|
|
} else
|
|
|
|
IWM_ERR(iwm, "Wrong SKU capabilities: 0x%x\n",
|
|
|
|
*((u16 *)iwm_eeprom_access(iwm, IWM_EEPROM_SKU_CAP)));
|
|
|
|
|
2009-10-16 13:18:59 +08:00
|
|
|
snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "L%s_U%s",
|
|
|
|
iwm->lmac_version, iwm->umac_version);
|
|
|
|
|
2009-05-21 21:20:45 +08:00
|
|
|
/* We configure the UMAC and enable the wifi module */
|
|
|
|
ret = iwm_send_umac_config(iwm,
|
|
|
|
cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_CORE_EN) |
|
|
|
|
cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_LINK_EN) |
|
|
|
|
cpu_to_le32(UMAC_RST_CTRL_FLG_WIFI_MLME_EN));
|
|
|
|
if (ret) {
|
|
|
|
IWM_ERR(iwm, "UMAC config failed\n");
|
|
|
|
goto err_fw;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = iwm_notif_handle(iwm, UMAC_NOTIFY_OPCODE_WIFI_CORE_STATUS,
|
|
|
|
IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT);
|
|
|
|
if (ret) {
|
|
|
|
IWM_ERR(iwm, "Didn't get a wifi core status notification\n");
|
|
|
|
goto err_fw;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (iwm->core_enabled != (UMAC_NTFY_WIFI_CORE_STATUS_LINK_EN |
|
|
|
|
UMAC_NTFY_WIFI_CORE_STATUS_MLME_EN)) {
|
|
|
|
IWM_DBG_BOOT(iwm, DBG, "Not all cores enabled:0x%x\n",
|
|
|
|
iwm->core_enabled);
|
|
|
|
ret = iwm_notif_handle(iwm, UMAC_NOTIFY_OPCODE_WIFI_CORE_STATUS,
|
|
|
|
IWM_SRC_UMAC, WAIT_NOTIF_TIMEOUT);
|
|
|
|
if (ret) {
|
|
|
|
IWM_ERR(iwm, "Didn't get a core status notification\n");
|
|
|
|
goto err_fw;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (iwm->core_enabled != (UMAC_NTFY_WIFI_CORE_STATUS_LINK_EN |
|
|
|
|
UMAC_NTFY_WIFI_CORE_STATUS_MLME_EN)) {
|
|
|
|
IWM_ERR(iwm, "Not all cores enabled: 0x%x\n",
|
|
|
|
iwm->core_enabled);
|
|
|
|
goto err_fw;
|
|
|
|
} else {
|
|
|
|
IWM_INFO(iwm, "All cores enabled\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = iwm_channels_init(iwm);
|
|
|
|
if (ret < 0) {
|
|
|
|
IWM_ERR(iwm, "Couldn't init channels\n");
|
2009-06-16 03:59:54 +08:00
|
|
|
goto err_fw;
|
2009-05-21 21:20:45 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Set the READY bit to indicate interface is brought up successfully */
|
|
|
|
set_bit(IWM_STATUS_READY, &iwm->status);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err_fw:
|
|
|
|
iwm_eeprom_exit(iwm);
|
|
|
|
|
|
|
|
err_disable:
|
|
|
|
ret = iwm_bus_disable(iwm);
|
|
|
|
if (ret < 0)
|
|
|
|
IWM_ERR(iwm, "Couldn't disable function\n");
|
|
|
|
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
2009-06-16 03:59:49 +08:00
|
|
|
int iwm_up(struct iwm_priv *iwm)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&iwm->mutex);
|
|
|
|
ret = __iwm_up(iwm);
|
|
|
|
mutex_unlock(&iwm->mutex);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2009-09-01 21:14:03 +08:00
|
|
|
static int __iwm_down(struct iwm_priv *iwm)
|
2009-05-21 21:20:45 +08:00
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
/* The interface is already down */
|
|
|
|
if (!test_bit(IWM_STATUS_READY, &iwm->status))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (iwm->scan_request) {
|
|
|
|
cfg80211_scan_done(iwm->scan_request, true);
|
|
|
|
iwm->scan_request = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
clear_bit(IWM_STATUS_READY, &iwm->status);
|
|
|
|
|
|
|
|
iwm_eeprom_exit(iwm);
|
|
|
|
iwm_bss_list_clean(iwm);
|
2009-06-16 03:59:54 +08:00
|
|
|
iwm_init_default_profile(iwm, iwm->umac_profile);
|
|
|
|
iwm->umac_profile_active = false;
|
2009-06-16 03:59:52 +08:00
|
|
|
iwm->default_key = -1;
|
2009-05-21 21:20:45 +08:00
|
|
|
iwm->core_enabled = 0;
|
|
|
|
|
|
|
|
ret = iwm_bus_disable(iwm);
|
|
|
|
if (ret < 0) {
|
|
|
|
IWM_ERR(iwm, "Couldn't disable function\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
2009-06-16 03:59:49 +08:00
|
|
|
|
|
|
|
int iwm_down(struct iwm_priv *iwm)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
mutex_lock(&iwm->mutex);
|
|
|
|
ret = __iwm_down(iwm);
|
|
|
|
mutex_unlock(&iwm->mutex);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|