forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1735 lines
43 KiB
1735 lines
43 KiB
/* |
|
* Copyright (c) 2010 Broadcom Corporation |
|
* Copyright (c) 2013 Hauke Mehrtens <[email protected]> |
|
* |
|
* Permission to use, copy, modify, and/or distribute this software for any |
|
* purpose with or without fee is hereby granted, provided that the above |
|
* copyright notice and this permission notice appear in all copies. |
|
* |
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
|
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
|
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
|
*/ |
|
|
|
#define __UNDEF_NO_VERSION__ |
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
|
|
|
#include <linux/etherdevice.h> |
|
#include <linux/sched.h> |
|
#include <linux/firmware.h> |
|
#include <linux/interrupt.h> |
|
#include <linux/module.h> |
|
#include <linux/bcma/bcma.h> |
|
#include <net/mac80211.h> |
|
#include <defs.h> |
|
#include "phy/phy_int.h" |
|
#include "d11.h" |
|
#include "channel.h" |
|
#include "scb.h" |
|
#include "pub.h" |
|
#include "ucode_loader.h" |
|
#include "mac80211_if.h" |
|
#include "main.h" |
|
#include "debug.h" |
|
#include "led.h" |
|
|
|
#define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */ |
|
#define BRCMS_FLUSH_TIMEOUT 500 /* msec */ |
|
|
|
/* Flags we support */ |
|
#define MAC_FILTERS (FIF_ALLMULTI | \ |
|
FIF_FCSFAIL | \ |
|
FIF_CONTROL | \ |
|
FIF_OTHER_BSS | \ |
|
FIF_BCN_PRBRESP_PROMISC | \ |
|
FIF_PSPOLL) |
|
|
|
#define CHAN2GHZ(channel, freqency, chflags) { \ |
|
.band = NL80211_BAND_2GHZ, \ |
|
.center_freq = (freqency), \ |
|
.hw_value = (channel), \ |
|
.flags = chflags, \ |
|
.max_antenna_gain = 0, \ |
|
.max_power = 19, \ |
|
} |
|
|
|
#define CHAN5GHZ(channel, chflags) { \ |
|
.band = NL80211_BAND_5GHZ, \ |
|
.center_freq = 5000 + 5*(channel), \ |
|
.hw_value = (channel), \ |
|
.flags = chflags, \ |
|
.max_antenna_gain = 0, \ |
|
.max_power = 21, \ |
|
} |
|
|
|
#define RATE(rate100m, _flags) { \ |
|
.bitrate = (rate100m), \ |
|
.flags = (_flags), \ |
|
.hw_value = (rate100m / 5), \ |
|
} |
|
|
|
struct firmware_hdr { |
|
__le32 offset; |
|
__le32 len; |
|
__le32 idx; |
|
}; |
|
|
|
static const char * const brcms_firmwares[MAX_FW_IMAGES] = { |
|
"brcm/bcm43xx", |
|
NULL |
|
}; |
|
|
|
static int n_adapters_found; |
|
|
|
MODULE_AUTHOR("Broadcom Corporation"); |
|
MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver."); |
|
MODULE_LICENSE("Dual BSD/GPL"); |
|
/* This needs to be adjusted when brcms_firmwares changes */ |
|
MODULE_FIRMWARE("brcm/bcm43xx-0.fw"); |
|
MODULE_FIRMWARE("brcm/bcm43xx_hdr-0.fw"); |
|
|
|
/* recognized BCMA Core IDs */ |
|
static struct bcma_device_id brcms_coreid_table[] = { |
|
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 17, BCMA_ANY_CLASS), |
|
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 23, BCMA_ANY_CLASS), |
|
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 24, BCMA_ANY_CLASS), |
|
{}, |
|
}; |
|
MODULE_DEVICE_TABLE(bcma, brcms_coreid_table); |
|
|
|
#if defined(CONFIG_BRCMDBG) |
|
/* |
|
* Module parameter for setting the debug message level. Available |
|
* flags are specified by the BRCM_DL_* macros in |
|
* drivers/net/wireless/brcm80211/include/defs.h. |
|
*/ |
|
module_param_named(debug, brcm_msg_level, uint, 0644); |
|
#endif |
|
|
|
static struct ieee80211_channel brcms_2ghz_chantable[] = { |
|
CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN2GHZ(5, 2432, 0), |
|
CHAN2GHZ(6, 2437, 0), |
|
CHAN2GHZ(7, 2442, 0), |
|
CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN2GHZ(12, 2467, |
|
IEEE80211_CHAN_NO_IR | |
|
IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN2GHZ(13, 2472, |
|
IEEE80211_CHAN_NO_IR | |
|
IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN2GHZ(14, 2484, |
|
IEEE80211_CHAN_NO_IR | |
|
IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS | |
|
IEEE80211_CHAN_NO_OFDM) |
|
}; |
|
|
|
static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = { |
|
/* UNII-1 */ |
|
CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS), |
|
/* UNII-2 */ |
|
CHAN5GHZ(52, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN5GHZ(56, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN5GHZ(60, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN5GHZ(64, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS), |
|
/* MID */ |
|
CHAN5GHZ(100, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN5GHZ(104, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN5GHZ(108, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN5GHZ(112, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN5GHZ(116, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN5GHZ(120, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN5GHZ(124, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN5GHZ(128, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN5GHZ(132, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN5GHZ(136, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN5GHZ(140, |
|
IEEE80211_CHAN_RADAR | |
|
IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS | |
|
IEEE80211_CHAN_NO_HT40MINUS), |
|
/* UNII-3 */ |
|
CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS), |
|
CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS), |
|
CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) |
|
}; |
|
|
|
/* |
|
* The rate table is used for both 2.4G and 5G rates. The |
|
* latter being a subset as it does not support CCK rates. |
|
*/ |
|
static struct ieee80211_rate legacy_ratetable[] = { |
|
RATE(10, 0), |
|
RATE(20, IEEE80211_RATE_SHORT_PREAMBLE), |
|
RATE(55, IEEE80211_RATE_SHORT_PREAMBLE), |
|
RATE(110, IEEE80211_RATE_SHORT_PREAMBLE), |
|
RATE(60, 0), |
|
RATE(90, 0), |
|
RATE(120, 0), |
|
RATE(180, 0), |
|
RATE(240, 0), |
|
RATE(360, 0), |
|
RATE(480, 0), |
|
RATE(540, 0), |
|
}; |
|
|
|
static const struct ieee80211_supported_band brcms_band_2GHz_nphy_template = { |
|
.band = NL80211_BAND_2GHZ, |
|
.channels = brcms_2ghz_chantable, |
|
.n_channels = ARRAY_SIZE(brcms_2ghz_chantable), |
|
.bitrates = legacy_ratetable, |
|
.n_bitrates = ARRAY_SIZE(legacy_ratetable), |
|
.ht_cap = { |
|
/* from include/linux/ieee80211.h */ |
|
.cap = IEEE80211_HT_CAP_GRN_FLD | |
|
IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40, |
|
.ht_supported = true, |
|
.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, |
|
.ampdu_density = AMPDU_DEF_MPDU_DENSITY, |
|
.mcs = { |
|
/* placeholders for now */ |
|
.rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}, |
|
.rx_highest = cpu_to_le16(500), |
|
.tx_params = IEEE80211_HT_MCS_TX_DEFINED} |
|
} |
|
}; |
|
|
|
static const struct ieee80211_supported_band brcms_band_5GHz_nphy_template = { |
|
.band = NL80211_BAND_5GHZ, |
|
.channels = brcms_5ghz_nphy_chantable, |
|
.n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable), |
|
.bitrates = legacy_ratetable + BRCMS_LEGACY_5G_RATE_OFFSET, |
|
.n_bitrates = ARRAY_SIZE(legacy_ratetable) - |
|
BRCMS_LEGACY_5G_RATE_OFFSET, |
|
.ht_cap = { |
|
.cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | |
|
IEEE80211_HT_CAP_SGI_40, |
|
.ht_supported = true, |
|
.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, |
|
.ampdu_density = AMPDU_DEF_MPDU_DENSITY, |
|
.mcs = { |
|
/* placeholders for now */ |
|
.rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}, |
|
.rx_highest = cpu_to_le16(500), |
|
.tx_params = IEEE80211_HT_MCS_TX_DEFINED} |
|
} |
|
}; |
|
|
|
/* flags the given rate in rateset as requested */ |
|
static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br) |
|
{ |
|
u32 i; |
|
|
|
for (i = 0; i < rs->count; i++) { |
|
if (rate != (rs->rates[i] & 0x7f)) |
|
continue; |
|
|
|
if (is_br) |
|
rs->rates[i] |= BRCMS_RATE_FLAG; |
|
else |
|
rs->rates[i] &= BRCMS_RATE_MASK; |
|
return; |
|
} |
|
} |
|
|
|
/* |
|
* This function frees the WL per-device resources. |
|
* |
|
* This function frees resources owned by the WL device pointed to |
|
* by the wl parameter. |
|
* |
|
* precondition: can both be called locked and unlocked |
|
*/ |
|
static void brcms_free(struct brcms_info *wl) |
|
{ |
|
struct brcms_timer *t, *next; |
|
|
|
/* free ucode data */ |
|
if (wl->fw.fw_cnt) |
|
brcms_ucode_data_free(&wl->ucode); |
|
if (wl->irq) |
|
free_irq(wl->irq, wl); |
|
|
|
/* kill dpc */ |
|
tasklet_kill(&wl->tasklet); |
|
|
|
if (wl->pub) { |
|
brcms_debugfs_detach(wl->pub); |
|
brcms_c_module_unregister(wl->pub, "linux", wl); |
|
} |
|
|
|
/* free common resources */ |
|
if (wl->wlc) { |
|
brcms_c_detach(wl->wlc); |
|
wl->wlc = NULL; |
|
wl->pub = NULL; |
|
} |
|
|
|
/* virtual interface deletion is deferred so we cannot spinwait */ |
|
|
|
/* wait for all pending callbacks to complete */ |
|
while (atomic_read(&wl->callbacks) > 0) |
|
schedule(); |
|
|
|
/* free timers */ |
|
for (t = wl->timers; t; t = next) { |
|
next = t->next; |
|
#ifdef DEBUG |
|
kfree(t->name); |
|
#endif |
|
kfree(t); |
|
} |
|
} |
|
|
|
/* |
|
* called from both kernel as from this kernel module (error flow on attach) |
|
* precondition: perimeter lock is not acquired. |
|
*/ |
|
static void brcms_remove(struct bcma_device *pdev) |
|
{ |
|
struct ieee80211_hw *hw = bcma_get_drvdata(pdev); |
|
struct brcms_info *wl = hw->priv; |
|
|
|
if (wl->wlc) { |
|
brcms_led_unregister(wl); |
|
wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false); |
|
wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy); |
|
ieee80211_unregister_hw(hw); |
|
} |
|
|
|
brcms_free(wl); |
|
|
|
bcma_set_drvdata(pdev, NULL); |
|
ieee80211_free_hw(hw); |
|
} |
|
|
|
/* |
|
* Precondition: Since this function is called in brcms_pci_probe() context, |
|
* no locking is required. |
|
*/ |
|
static void brcms_release_fw(struct brcms_info *wl) |
|
{ |
|
int i; |
|
for (i = 0; i < MAX_FW_IMAGES; i++) { |
|
release_firmware(wl->fw.fw_bin[i]); |
|
release_firmware(wl->fw.fw_hdr[i]); |
|
} |
|
} |
|
|
|
/* |
|
* Precondition: Since this function is called in brcms_pci_probe() context, |
|
* no locking is required. |
|
*/ |
|
static int brcms_request_fw(struct brcms_info *wl, struct bcma_device *pdev) |
|
{ |
|
int status; |
|
struct device *device = &pdev->dev; |
|
char fw_name[100]; |
|
int i; |
|
|
|
memset(&wl->fw, 0, sizeof(struct brcms_firmware)); |
|
for (i = 0; i < MAX_FW_IMAGES; i++) { |
|
if (brcms_firmwares[i] == NULL) |
|
break; |
|
sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i], |
|
UCODE_LOADER_API_VER); |
|
status = request_firmware(&wl->fw.fw_bin[i], fw_name, device); |
|
if (status) { |
|
wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", |
|
KBUILD_MODNAME, fw_name); |
|
return status; |
|
} |
|
sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i], |
|
UCODE_LOADER_API_VER); |
|
status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device); |
|
if (status) { |
|
wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", |
|
KBUILD_MODNAME, fw_name); |
|
return status; |
|
} |
|
wl->fw.hdr_num_entries[i] = |
|
wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr)); |
|
} |
|
wl->fw.fw_cnt = i; |
|
status = brcms_ucode_data_init(wl, &wl->ucode); |
|
brcms_release_fw(wl); |
|
return status; |
|
} |
|
|
|
static void brcms_ops_tx(struct ieee80211_hw *hw, |
|
struct ieee80211_tx_control *control, |
|
struct sk_buff *skb) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); |
|
|
|
spin_lock_bh(&wl->lock); |
|
if (!wl->pub->up) { |
|
brcms_err(wl->wlc->hw->d11core, "ops->tx called while down\n"); |
|
kfree_skb(skb); |
|
goto done; |
|
} |
|
if (brcms_c_sendpkt_mac80211(wl->wlc, skb, hw)) |
|
tx_info->rate_driver_data[0] = control->sta; |
|
done: |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
|
|
static int brcms_ops_start(struct ieee80211_hw *hw) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
bool blocked; |
|
int err; |
|
|
|
if (!wl->ucode.bcm43xx_bomminor) { |
|
err = brcms_request_fw(wl, wl->wlc->hw->d11core); |
|
if (err) |
|
return -ENOENT; |
|
} |
|
|
|
ieee80211_wake_queues(hw); |
|
spin_lock_bh(&wl->lock); |
|
blocked = brcms_rfkill_set_hw_state(wl); |
|
spin_unlock_bh(&wl->lock); |
|
if (!blocked) |
|
wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy); |
|
|
|
spin_lock_bh(&wl->lock); |
|
/* avoid acknowledging frames before a non-monitor device is added */ |
|
wl->mute_tx = true; |
|
|
|
if (!wl->pub->up) |
|
if (!blocked) |
|
err = brcms_up(wl); |
|
else |
|
err = -ERFKILL; |
|
else |
|
err = -ENODEV; |
|
spin_unlock_bh(&wl->lock); |
|
|
|
if (err != 0) |
|
brcms_err(wl->wlc->hw->d11core, "%s: brcms_up() returned %d\n", |
|
__func__, err); |
|
|
|
bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, true); |
|
return err; |
|
} |
|
|
|
static void brcms_ops_stop(struct ieee80211_hw *hw) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
int status; |
|
|
|
ieee80211_stop_queues(hw); |
|
|
|
if (wl->wlc == NULL) |
|
return; |
|
|
|
spin_lock_bh(&wl->lock); |
|
status = brcms_c_chipmatch(wl->wlc->hw->d11core); |
|
spin_unlock_bh(&wl->lock); |
|
if (!status) { |
|
brcms_err(wl->wlc->hw->d11core, |
|
"wl: brcms_ops_stop: chipmatch failed\n"); |
|
return; |
|
} |
|
|
|
bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, false); |
|
|
|
/* put driver in down state */ |
|
spin_lock_bh(&wl->lock); |
|
brcms_down(wl); |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
|
|
static int |
|
brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
|
|
/* Just STA, AP and ADHOC for now */ |
|
if (vif->type != NL80211_IFTYPE_STATION && |
|
vif->type != NL80211_IFTYPE_AP && |
|
vif->type != NL80211_IFTYPE_ADHOC) { |
|
brcms_err(wl->wlc->hw->d11core, |
|
"%s: Attempt to add type %d, only STA, AP and AdHoc for now\n", |
|
__func__, vif->type); |
|
return -EOPNOTSUPP; |
|
} |
|
|
|
spin_lock_bh(&wl->lock); |
|
wl->wlc->vif = vif; |
|
wl->mute_tx = false; |
|
brcms_c_mute(wl->wlc, false); |
|
if (vif->type == NL80211_IFTYPE_STATION) |
|
brcms_c_start_station(wl->wlc, vif->addr); |
|
else if (vif->type == NL80211_IFTYPE_AP) |
|
brcms_c_start_ap(wl->wlc, vif->addr, vif->bss_conf.bssid, |
|
vif->bss_conf.ssid, vif->bss_conf.ssid_len); |
|
else if (vif->type == NL80211_IFTYPE_ADHOC) |
|
brcms_c_start_adhoc(wl->wlc, vif->addr); |
|
spin_unlock_bh(&wl->lock); |
|
|
|
return 0; |
|
} |
|
|
|
static void |
|
brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
|
|
spin_lock_bh(&wl->lock); |
|
wl->wlc->vif = NULL; |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
|
|
static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed) |
|
{ |
|
struct ieee80211_conf *conf = &hw->conf; |
|
struct brcms_info *wl = hw->priv; |
|
struct bcma_device *core = wl->wlc->hw->d11core; |
|
int err = 0; |
|
int new_int; |
|
|
|
spin_lock_bh(&wl->lock); |
|
if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) { |
|
brcms_c_set_beacon_listen_interval(wl->wlc, |
|
conf->listen_interval); |
|
} |
|
if (changed & IEEE80211_CONF_CHANGE_MONITOR) |
|
brcms_dbg_info(core, "%s: change monitor mode: %s\n", |
|
__func__, conf->flags & IEEE80211_CONF_MONITOR ? |
|
"true" : "false"); |
|
if (changed & IEEE80211_CONF_CHANGE_PS) |
|
brcms_err(core, "%s: change power-save mode: %s (implement)\n", |
|
__func__, conf->flags & IEEE80211_CONF_PS ? |
|
"true" : "false"); |
|
|
|
if (changed & IEEE80211_CONF_CHANGE_POWER) { |
|
err = brcms_c_set_tx_power(wl->wlc, conf->power_level); |
|
if (err < 0) { |
|
brcms_err(core, "%s: Error setting power_level\n", |
|
__func__); |
|
goto config_out; |
|
} |
|
new_int = brcms_c_get_tx_power(wl->wlc); |
|
if (new_int != conf->power_level) |
|
brcms_err(core, |
|
"%s: Power level req != actual, %d %d\n", |
|
__func__, conf->power_level, |
|
new_int); |
|
} |
|
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
|
if (conf->chandef.width == NL80211_CHAN_WIDTH_20 || |
|
conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) |
|
err = brcms_c_set_channel(wl->wlc, |
|
conf->chandef.chan->hw_value); |
|
else |
|
err = -ENOTSUPP; |
|
} |
|
if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) |
|
err = brcms_c_set_rate_limit(wl->wlc, |
|
conf->short_frame_max_tx_count, |
|
conf->long_frame_max_tx_count); |
|
|
|
config_out: |
|
spin_unlock_bh(&wl->lock); |
|
return err; |
|
} |
|
|
|
static void |
|
brcms_ops_bss_info_changed(struct ieee80211_hw *hw, |
|
struct ieee80211_vif *vif, |
|
struct ieee80211_bss_conf *info, u32 changed) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
struct bcma_device *core = wl->wlc->hw->d11core; |
|
|
|
if (changed & BSS_CHANGED_ASSOC) { |
|
/* association status changed (associated/disassociated) |
|
* also implies a change in the AID. |
|
*/ |
|
brcms_err(core, "%s: %s: %sassociated\n", KBUILD_MODNAME, |
|
__func__, info->assoc ? "" : "dis"); |
|
spin_lock_bh(&wl->lock); |
|
brcms_c_associate_upd(wl->wlc, info->assoc); |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
if (changed & BSS_CHANGED_ERP_SLOT) { |
|
s8 val; |
|
|
|
/* slot timing changed */ |
|
if (info->use_short_slot) |
|
val = 1; |
|
else |
|
val = 0; |
|
spin_lock_bh(&wl->lock); |
|
brcms_c_set_shortslot_override(wl->wlc, val); |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
|
|
if (changed & BSS_CHANGED_HT) { |
|
/* 802.11n parameters changed */ |
|
u16 mode = info->ht_operation_mode; |
|
|
|
spin_lock_bh(&wl->lock); |
|
brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG, |
|
mode & IEEE80211_HT_OP_MODE_PROTECTION); |
|
brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF, |
|
mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); |
|
brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS, |
|
mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT); |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
if (changed & BSS_CHANGED_BASIC_RATES) { |
|
struct ieee80211_supported_band *bi; |
|
u32 br_mask, i; |
|
u16 rate; |
|
struct brcm_rateset rs; |
|
int error; |
|
|
|
/* retrieve the current rates */ |
|
spin_lock_bh(&wl->lock); |
|
brcms_c_get_current_rateset(wl->wlc, &rs); |
|
spin_unlock_bh(&wl->lock); |
|
|
|
br_mask = info->basic_rates; |
|
bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)]; |
|
for (i = 0; i < bi->n_bitrates; i++) { |
|
/* convert to internal rate value */ |
|
rate = (bi->bitrates[i].bitrate << 1) / 10; |
|
|
|
/* set/clear basic rate flag */ |
|
brcms_set_basic_rate(&rs, rate, br_mask & 1); |
|
br_mask >>= 1; |
|
} |
|
|
|
/* update the rate set */ |
|
spin_lock_bh(&wl->lock); |
|
error = brcms_c_set_rateset(wl->wlc, &rs); |
|
spin_unlock_bh(&wl->lock); |
|
if (error) |
|
brcms_err(core, "changing basic rates failed: %d\n", |
|
error); |
|
} |
|
if (changed & BSS_CHANGED_BEACON_INT) { |
|
/* Beacon interval changed */ |
|
spin_lock_bh(&wl->lock); |
|
brcms_c_set_beacon_period(wl->wlc, info->beacon_int); |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
if (changed & BSS_CHANGED_BSSID) { |
|
/* BSSID changed, for whatever reason (IBSS and managed mode) */ |
|
spin_lock_bh(&wl->lock); |
|
brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid); |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
if (changed & BSS_CHANGED_SSID) { |
|
/* BSSID changed, for whatever reason (IBSS and managed mode) */ |
|
spin_lock_bh(&wl->lock); |
|
brcms_c_set_ssid(wl->wlc, info->ssid, info->ssid_len); |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
if (changed & BSS_CHANGED_BEACON) { |
|
/* Beacon data changed, retrieve new beacon (beaconing modes) */ |
|
struct sk_buff *beacon; |
|
u16 tim_offset = 0; |
|
|
|
spin_lock_bh(&wl->lock); |
|
beacon = ieee80211_beacon_get_tim(hw, vif, &tim_offset, NULL); |
|
brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset, |
|
info->dtim_period); |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
|
|
if (changed & BSS_CHANGED_AP_PROBE_RESP) { |
|
struct sk_buff *probe_resp; |
|
|
|
spin_lock_bh(&wl->lock); |
|
probe_resp = ieee80211_proberesp_get(hw, vif); |
|
brcms_c_set_new_probe_resp(wl->wlc, probe_resp); |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
|
|
if (changed & BSS_CHANGED_BEACON_ENABLED) { |
|
/* Beaconing should be enabled/disabled (beaconing modes) */ |
|
brcms_err(core, "%s: Beacon enabled: %s\n", __func__, |
|
info->enable_beacon ? "true" : "false"); |
|
if (info->enable_beacon && |
|
hw->wiphy->flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) { |
|
brcms_c_enable_probe_resp(wl->wlc, true); |
|
} else { |
|
brcms_c_enable_probe_resp(wl->wlc, false); |
|
} |
|
} |
|
|
|
if (changed & BSS_CHANGED_CQM) { |
|
/* Connection quality monitor config changed */ |
|
brcms_err(core, "%s: cqm change: threshold %d, hys %d " |
|
" (implement)\n", __func__, info->cqm_rssi_thold, |
|
info->cqm_rssi_hyst); |
|
} |
|
|
|
if (changed & BSS_CHANGED_IBSS) { |
|
/* IBSS join status changed */ |
|
brcms_err(core, "%s: IBSS joined: %s (implement)\n", |
|
__func__, info->ibss_joined ? "true" : "false"); |
|
} |
|
|
|
if (changed & BSS_CHANGED_ARP_FILTER) { |
|
/* Hardware ARP filter address list or state changed */ |
|
brcms_err(core, "%s: arp filtering: %d addresses" |
|
" (implement)\n", __func__, info->arp_addr_cnt); |
|
} |
|
|
|
if (changed & BSS_CHANGED_QOS) { |
|
/* |
|
* QoS for this association was enabled/disabled. |
|
* Note that it is only ever disabled for station mode. |
|
*/ |
|
brcms_err(core, "%s: qos enabled: %s (implement)\n", |
|
__func__, info->qos ? "true" : "false"); |
|
} |
|
return; |
|
} |
|
|
|
static void |
|
brcms_ops_configure_filter(struct ieee80211_hw *hw, |
|
unsigned int changed_flags, |
|
unsigned int *total_flags, u64 multicast) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
struct bcma_device *core = wl->wlc->hw->d11core; |
|
|
|
changed_flags &= MAC_FILTERS; |
|
*total_flags &= MAC_FILTERS; |
|
|
|
if (changed_flags & FIF_ALLMULTI) |
|
brcms_dbg_info(core, "FIF_ALLMULTI\n"); |
|
if (changed_flags & FIF_FCSFAIL) |
|
brcms_dbg_info(core, "FIF_FCSFAIL\n"); |
|
if (changed_flags & FIF_CONTROL) |
|
brcms_dbg_info(core, "FIF_CONTROL\n"); |
|
if (changed_flags & FIF_OTHER_BSS) |
|
brcms_dbg_info(core, "FIF_OTHER_BSS\n"); |
|
if (changed_flags & FIF_PSPOLL) |
|
brcms_dbg_info(core, "FIF_PSPOLL\n"); |
|
if (changed_flags & FIF_BCN_PRBRESP_PROMISC) |
|
brcms_dbg_info(core, "FIF_BCN_PRBRESP_PROMISC\n"); |
|
|
|
spin_lock_bh(&wl->lock); |
|
brcms_c_mac_promisc(wl->wlc, *total_flags); |
|
spin_unlock_bh(&wl->lock); |
|
return; |
|
} |
|
|
|
static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw, |
|
struct ieee80211_vif *vif, |
|
const u8 *mac_addr) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
spin_lock_bh(&wl->lock); |
|
brcms_c_scan_start(wl->wlc); |
|
spin_unlock_bh(&wl->lock); |
|
return; |
|
} |
|
|
|
static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw, |
|
struct ieee80211_vif *vif) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
spin_lock_bh(&wl->lock); |
|
brcms_c_scan_stop(wl->wlc); |
|
spin_unlock_bh(&wl->lock); |
|
return; |
|
} |
|
|
|
static int |
|
brcms_ops_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, |
|
const struct ieee80211_tx_queue_params *params) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
|
|
spin_lock_bh(&wl->lock); |
|
brcms_c_wme_setparams(wl->wlc, queue, params, true); |
|
spin_unlock_bh(&wl->lock); |
|
|
|
return 0; |
|
} |
|
|
|
static int |
|
brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
|
struct ieee80211_sta *sta) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
struct scb *scb = &wl->wlc->pri_scb; |
|
|
|
brcms_c_init_scb(scb); |
|
|
|
wl->pub->global_ampdu = &(scb->scb_ampdu); |
|
wl->pub->global_ampdu->scb = scb; |
|
wl->pub->global_ampdu->max_pdu = 16; |
|
|
|
/* |
|
* minstrel_ht initiates addBA on our behalf by calling |
|
* ieee80211_start_tx_ba_session() |
|
*/ |
|
return 0; |
|
} |
|
|
|
static int |
|
brcms_ops_ampdu_action(struct ieee80211_hw *hw, |
|
struct ieee80211_vif *vif, |
|
struct ieee80211_ampdu_params *params) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
struct scb *scb = &wl->wlc->pri_scb; |
|
int status; |
|
struct ieee80211_sta *sta = params->sta; |
|
enum ieee80211_ampdu_mlme_action action = params->action; |
|
u16 tid = params->tid; |
|
u8 buf_size = params->buf_size; |
|
|
|
if (WARN_ON(scb->magic != SCB_MAGIC)) |
|
return -EIDRM; |
|
switch (action) { |
|
case IEEE80211_AMPDU_RX_START: |
|
break; |
|
case IEEE80211_AMPDU_RX_STOP: |
|
break; |
|
case IEEE80211_AMPDU_TX_START: |
|
spin_lock_bh(&wl->lock); |
|
status = brcms_c_aggregatable(wl->wlc, tid); |
|
spin_unlock_bh(&wl->lock); |
|
if (!status) { |
|
brcms_dbg_ht(wl->wlc->hw->d11core, |
|
"START: tid %d is not agg\'able\n", tid); |
|
return -EINVAL; |
|
} |
|
return IEEE80211_AMPDU_TX_START_IMMEDIATE; |
|
|
|
case IEEE80211_AMPDU_TX_STOP_CONT: |
|
case IEEE80211_AMPDU_TX_STOP_FLUSH: |
|
case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: |
|
spin_lock_bh(&wl->lock); |
|
brcms_c_ampdu_flush(wl->wlc, sta, tid); |
|
spin_unlock_bh(&wl->lock); |
|
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
|
break; |
|
case IEEE80211_AMPDU_TX_OPERATIONAL: |
|
/* |
|
* BA window size from ADDBA response ('buf_size') defines how |
|
* many outstanding MPDUs are allowed for the BA stream by |
|
* recipient and traffic class. 'ampdu_factor' gives maximum |
|
* AMPDU size. |
|
*/ |
|
spin_lock_bh(&wl->lock); |
|
brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size, |
|
(1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + |
|
sta->ht_cap.ampdu_factor)) - 1); |
|
spin_unlock_bh(&wl->lock); |
|
/* Power save wakeup */ |
|
break; |
|
default: |
|
brcms_err(wl->wlc->hw->d11core, |
|
"%s: Invalid command, ignoring\n", __func__); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
bool blocked; |
|
|
|
spin_lock_bh(&wl->lock); |
|
blocked = brcms_c_check_radio_disabled(wl->wlc); |
|
spin_unlock_bh(&wl->lock); |
|
|
|
wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked); |
|
} |
|
|
|
static bool brcms_tx_flush_completed(struct brcms_info *wl) |
|
{ |
|
bool result; |
|
|
|
spin_lock_bh(&wl->lock); |
|
result = brcms_c_tx_flush_completed(wl->wlc); |
|
spin_unlock_bh(&wl->lock); |
|
return result; |
|
} |
|
|
|
static void brcms_ops_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
|
u32 queues, bool drop) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
int ret; |
|
|
|
no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false"); |
|
|
|
ret = wait_event_timeout(wl->tx_flush_wq, |
|
brcms_tx_flush_completed(wl), |
|
msecs_to_jiffies(BRCMS_FLUSH_TIMEOUT)); |
|
|
|
brcms_dbg_mac80211(wl->wlc->hw->d11core, |
|
"ret=%d\n", jiffies_to_msecs(ret)); |
|
} |
|
|
|
static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
u64 tsf; |
|
|
|
spin_lock_bh(&wl->lock); |
|
tsf = brcms_c_tsf_get(wl->wlc); |
|
spin_unlock_bh(&wl->lock); |
|
|
|
return tsf; |
|
} |
|
|
|
static void brcms_ops_set_tsf(struct ieee80211_hw *hw, |
|
struct ieee80211_vif *vif, u64 tsf) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
|
|
spin_lock_bh(&wl->lock); |
|
brcms_c_tsf_set(wl->wlc, tsf); |
|
spin_unlock_bh(&wl->lock); |
|
} |
|
|
|
static int brcms_ops_beacon_set_tim(struct ieee80211_hw *hw, |
|
struct ieee80211_sta *sta, bool set) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
struct sk_buff *beacon = NULL; |
|
u16 tim_offset = 0; |
|
|
|
spin_lock_bh(&wl->lock); |
|
if (wl->wlc->vif) |
|
beacon = ieee80211_beacon_get_tim(hw, wl->wlc->vif, |
|
&tim_offset, NULL); |
|
if (beacon) |
|
brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset, |
|
wl->wlc->vif->bss_conf.dtim_period); |
|
spin_unlock_bh(&wl->lock); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct ieee80211_ops brcms_ops = { |
|
.tx = brcms_ops_tx, |
|
.start = brcms_ops_start, |
|
.stop = brcms_ops_stop, |
|
.add_interface = brcms_ops_add_interface, |
|
.remove_interface = brcms_ops_remove_interface, |
|
.config = brcms_ops_config, |
|
.bss_info_changed = brcms_ops_bss_info_changed, |
|
.configure_filter = brcms_ops_configure_filter, |
|
.sw_scan_start = brcms_ops_sw_scan_start, |
|
.sw_scan_complete = brcms_ops_sw_scan_complete, |
|
.conf_tx = brcms_ops_conf_tx, |
|
.sta_add = brcms_ops_sta_add, |
|
.ampdu_action = brcms_ops_ampdu_action, |
|
.rfkill_poll = brcms_ops_rfkill_poll, |
|
.flush = brcms_ops_flush, |
|
.get_tsf = brcms_ops_get_tsf, |
|
.set_tsf = brcms_ops_set_tsf, |
|
.set_tim = brcms_ops_beacon_set_tim, |
|
}; |
|
|
|
void brcms_dpc(struct tasklet_struct *t) |
|
{ |
|
struct brcms_info *wl; |
|
|
|
wl = from_tasklet(wl, t, tasklet); |
|
|
|
spin_lock_bh(&wl->lock); |
|
|
|
/* call the common second level interrupt handler */ |
|
if (wl->pub->up) { |
|
if (wl->resched) { |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&wl->isr_lock, flags); |
|
brcms_c_intrsupd(wl->wlc); |
|
spin_unlock_irqrestore(&wl->isr_lock, flags); |
|
} |
|
|
|
wl->resched = brcms_c_dpc(wl->wlc, true); |
|
} |
|
|
|
/* brcms_c_dpc() may bring the driver down */ |
|
if (!wl->pub->up) |
|
goto done; |
|
|
|
/* re-schedule dpc */ |
|
if (wl->resched) |
|
tasklet_schedule(&wl->tasklet); |
|
else |
|
/* re-enable interrupts */ |
|
brcms_intrson(wl); |
|
|
|
done: |
|
spin_unlock_bh(&wl->lock); |
|
wake_up(&wl->tx_flush_wq); |
|
} |
|
|
|
static irqreturn_t brcms_isr(int irq, void *dev_id) |
|
{ |
|
struct brcms_info *wl; |
|
irqreturn_t ret = IRQ_NONE; |
|
|
|
wl = (struct brcms_info *) dev_id; |
|
|
|
spin_lock(&wl->isr_lock); |
|
|
|
/* call common first level interrupt handler */ |
|
if (brcms_c_isr(wl->wlc)) { |
|
/* schedule second level handler */ |
|
tasklet_schedule(&wl->tasklet); |
|
ret = IRQ_HANDLED; |
|
} |
|
|
|
spin_unlock(&wl->isr_lock); |
|
|
|
return ret; |
|
} |
|
|
|
/* |
|
* is called in brcms_pci_probe() context, therefore no locking required. |
|
*/ |
|
static int ieee_hw_rate_init(struct ieee80211_hw *hw) |
|
{ |
|
struct brcms_info *wl = hw->priv; |
|
struct brcms_c_info *wlc = wl->wlc; |
|
struct ieee80211_supported_band *band; |
|
int has_5g = 0; |
|
u16 phy_type; |
|
|
|
hw->wiphy->bands[NL80211_BAND_2GHZ] = NULL; |
|
hw->wiphy->bands[NL80211_BAND_5GHZ] = NULL; |
|
|
|
phy_type = brcms_c_get_phy_type(wl->wlc, 0); |
|
if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) { |
|
band = &wlc->bandstate[BAND_2G_INDEX]->band; |
|
*band = brcms_band_2GHz_nphy_template; |
|
if (phy_type == PHY_TYPE_LCN) { |
|
/* Single stream */ |
|
band->ht_cap.mcs.rx_mask[1] = 0; |
|
band->ht_cap.mcs.rx_highest = cpu_to_le16(72); |
|
} |
|
hw->wiphy->bands[NL80211_BAND_2GHZ] = band; |
|
} else { |
|
return -EPERM; |
|
} |
|
|
|
/* Assume all bands use the same phy. True for 11n devices. */ |
|
if (wl->pub->_nbands > 1) { |
|
has_5g++; |
|
if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) { |
|
band = &wlc->bandstate[BAND_5G_INDEX]->band; |
|
*band = brcms_band_5GHz_nphy_template; |
|
hw->wiphy->bands[NL80211_BAND_5GHZ] = band; |
|
} else { |
|
return -EPERM; |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
/* |
|
* is called in brcms_pci_probe() context, therefore no locking required. |
|
*/ |
|
static int ieee_hw_init(struct ieee80211_hw *hw) |
|
{ |
|
ieee80211_hw_set(hw, AMPDU_AGGREGATION); |
|
ieee80211_hw_set(hw, SIGNAL_DBM); |
|
ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); |
|
|
|
hw->extra_tx_headroom = brcms_c_get_header_len(); |
|
hw->queues = N_TX_QUEUES; |
|
hw->max_rates = 2; /* Primary rate and 1 fallback rate */ |
|
|
|
/* channel change time is dependent on chip and band */ |
|
hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
|
BIT(NL80211_IFTYPE_AP) | |
|
BIT(NL80211_IFTYPE_ADHOC); |
|
|
|
/* |
|
* deactivate sending probe responses by ucude, because this will |
|
* cause problems when WPS is used. |
|
* |
|
* hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; |
|
*/ |
|
|
|
wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); |
|
|
|
hw->rate_control_algorithm = "minstrel_ht"; |
|
|
|
hw->sta_data_size = 0; |
|
return ieee_hw_rate_init(hw); |
|
} |
|
|
|
/* |
|
* attach to the WL device. |
|
* |
|
* Attach to the WL device identified by vendor and device parameters. |
|
* regs is a host accessible memory address pointing to WL device registers. |
|
* |
|
* is called in brcms_bcma_probe() context, therefore no locking required. |
|
*/ |
|
static struct brcms_info *brcms_attach(struct bcma_device *pdev) |
|
{ |
|
struct brcms_info *wl = NULL; |
|
int unit, err; |
|
struct ieee80211_hw *hw; |
|
u8 perm[ETH_ALEN]; |
|
|
|
unit = n_adapters_found; |
|
err = 0; |
|
|
|
if (unit < 0) |
|
return NULL; |
|
|
|
/* allocate private info */ |
|
hw = bcma_get_drvdata(pdev); |
|
if (hw != NULL) |
|
wl = hw->priv; |
|
if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL)) |
|
return NULL; |
|
wl->wiphy = hw->wiphy; |
|
|
|
atomic_set(&wl->callbacks, 0); |
|
|
|
init_waitqueue_head(&wl->tx_flush_wq); |
|
|
|
/* setup the bottom half handler */ |
|
tasklet_setup(&wl->tasklet, brcms_dpc); |
|
|
|
spin_lock_init(&wl->lock); |
|
spin_lock_init(&wl->isr_lock); |
|
|
|
/* common load-time initialization */ |
|
wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err); |
|
if (!wl->wlc) { |
|
wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n", |
|
KBUILD_MODNAME, err); |
|
goto fail; |
|
} |
|
wl->pub = brcms_c_pub(wl->wlc); |
|
|
|
wl->pub->ieee_hw = hw; |
|
|
|
/* register our interrupt handler */ |
|
if (request_irq(pdev->irq, brcms_isr, |
|
IRQF_SHARED, KBUILD_MODNAME, wl)) { |
|
wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit); |
|
goto fail; |
|
} |
|
wl->irq = pdev->irq; |
|
|
|
/* register module */ |
|
brcms_c_module_register(wl->pub, "linux", wl, NULL); |
|
|
|
if (ieee_hw_init(hw)) { |
|
wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit, |
|
__func__); |
|
goto fail; |
|
} |
|
|
|
brcms_c_regd_init(wl->wlc); |
|
|
|
memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN); |
|
if (WARN_ON(!is_valid_ether_addr(perm))) |
|
goto fail; |
|
SET_IEEE80211_PERM_ADDR(hw, perm); |
|
|
|
err = ieee80211_register_hw(hw); |
|
if (err) |
|
wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status" |
|
"%d\n", __func__, err); |
|
|
|
if (wl->pub->srom_ccode[0] && |
|
regulatory_hint(wl->wiphy, wl->pub->srom_ccode)) |
|
wiphy_err(wl->wiphy, "%s: regulatory hint failed\n", __func__); |
|
|
|
brcms_debugfs_attach(wl->pub); |
|
brcms_debugfs_create_files(wl->pub); |
|
n_adapters_found++; |
|
return wl; |
|
|
|
fail: |
|
brcms_free(wl); |
|
return NULL; |
|
} |
|
|
|
|
|
|
|
/* |
|
* determines if a device is a WL device, and if so, attaches it. |
|
* |
|
* This function determines if a device pointed to by pdev is a WL device, |
|
* and if so, performs a brcms_attach() on it. |
|
* |
|
* Perimeter lock is initialized in the course of this function. |
|
*/ |
|
static int brcms_bcma_probe(struct bcma_device *pdev) |
|
{ |
|
struct brcms_info *wl; |
|
struct ieee80211_hw *hw; |
|
int ret; |
|
|
|
dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n", |
|
pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class, |
|
pdev->irq); |
|
|
|
if ((pdev->id.manuf != BCMA_MANUF_BCM) || |
|
(pdev->id.id != BCMA_CORE_80211)) |
|
return -ENODEV; |
|
|
|
hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops); |
|
if (!hw) { |
|
pr_err("%s: ieee80211_alloc_hw failed\n", __func__); |
|
return -ENOMEM; |
|
} |
|
|
|
SET_IEEE80211_DEV(hw, &pdev->dev); |
|
|
|
bcma_set_drvdata(pdev, hw); |
|
|
|
memset(hw->priv, 0, sizeof(*wl)); |
|
|
|
wl = brcms_attach(pdev); |
|
if (!wl) { |
|
pr_err("%s: brcms_attach failed!\n", __func__); |
|
ret = -ENODEV; |
|
goto err_free_ieee80211; |
|
} |
|
brcms_led_register(wl); |
|
|
|
return 0; |
|
|
|
err_free_ieee80211: |
|
ieee80211_free_hw(hw); |
|
return ret; |
|
} |
|
|
|
static int brcms_suspend(struct bcma_device *pdev) |
|
{ |
|
struct brcms_info *wl; |
|
struct ieee80211_hw *hw; |
|
|
|
hw = bcma_get_drvdata(pdev); |
|
wl = hw->priv; |
|
if (!wl) { |
|
pr_err("%s: %s: no driver private struct!\n", KBUILD_MODNAME, |
|
__func__); |
|
return -ENODEV; |
|
} |
|
|
|
/* only need to flag hw is down for proper resume */ |
|
spin_lock_bh(&wl->lock); |
|
wl->pub->hw_up = false; |
|
spin_unlock_bh(&wl->lock); |
|
|
|
brcms_dbg_info(wl->wlc->hw->d11core, "brcms_suspend ok\n"); |
|
|
|
return 0; |
|
} |
|
|
|
static int brcms_resume(struct bcma_device *pdev) |
|
{ |
|
return 0; |
|
} |
|
|
|
static struct bcma_driver brcms_bcma_driver = { |
|
.name = KBUILD_MODNAME, |
|
.probe = brcms_bcma_probe, |
|
.suspend = brcms_suspend, |
|
.resume = brcms_resume, |
|
.remove = brcms_remove, |
|
.id_table = brcms_coreid_table, |
|
}; |
|
|
|
/* |
|
* This is the main entry point for the brcmsmac driver. |
|
* |
|
* This function is scheduled upon module initialization and |
|
* does the driver registration, which result in brcms_bcma_probe() |
|
* call resulting in the driver bringup. |
|
*/ |
|
static void brcms_driver_init(struct work_struct *work) |
|
{ |
|
int error; |
|
|
|
error = bcma_driver_register(&brcms_bcma_driver); |
|
if (error) |
|
pr_err("%s: register returned %d\n", __func__, error); |
|
} |
|
|
|
static DECLARE_WORK(brcms_driver_work, brcms_driver_init); |
|
|
|
static int __init brcms_module_init(void) |
|
{ |
|
brcms_debugfs_init(); |
|
if (!schedule_work(&brcms_driver_work)) |
|
return -EBUSY; |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* This function unloads the brcmsmac driver from the system. |
|
* |
|
* This function unconditionally unloads the brcmsmac driver module from the |
|
* system. |
|
* |
|
*/ |
|
static void __exit brcms_module_exit(void) |
|
{ |
|
cancel_work_sync(&brcms_driver_work); |
|
bcma_driver_unregister(&brcms_bcma_driver); |
|
brcms_debugfs_exit(); |
|
} |
|
|
|
module_init(brcms_module_init); |
|
module_exit(brcms_module_exit); |
|
|
|
/* |
|
* precondition: perimeter lock has been acquired |
|
*/ |
|
void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif, |
|
bool state, int prio) |
|
{ |
|
brcms_err(wl->wlc->hw->d11core, "Shouldn't be here %s\n", __func__); |
|
} |
|
|
|
/* |
|
* precondition: perimeter lock has been acquired |
|
*/ |
|
void brcms_init(struct brcms_info *wl) |
|
{ |
|
brcms_dbg_info(wl->wlc->hw->d11core, "Initializing wl%d\n", |
|
wl->pub->unit); |
|
brcms_reset(wl); |
|
brcms_c_init(wl->wlc, wl->mute_tx); |
|
} |
|
|
|
/* |
|
* precondition: perimeter lock has been acquired |
|
*/ |
|
uint brcms_reset(struct brcms_info *wl) |
|
{ |
|
brcms_dbg_info(wl->wlc->hw->d11core, "Resetting wl%d\n", wl->pub->unit); |
|
brcms_c_reset(wl->wlc); |
|
|
|
/* dpc will not be rescheduled */ |
|
wl->resched = false; |
|
|
|
/* inform publicly that interface is down */ |
|
wl->pub->up = false; |
|
|
|
return 0; |
|
} |
|
|
|
void brcms_fatal_error(struct brcms_info *wl) |
|
{ |
|
brcms_err(wl->wlc->hw->d11core, "wl%d: fatal error, reinitializing\n", |
|
wl->wlc->pub->unit); |
|
brcms_reset(wl); |
|
ieee80211_restart_hw(wl->pub->ieee_hw); |
|
} |
|
|
|
/* |
|
* These are interrupt on/off entry points. Disable interrupts |
|
* during interrupt state transition. |
|
*/ |
|
void brcms_intrson(struct brcms_info *wl) |
|
{ |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&wl->isr_lock, flags); |
|
brcms_c_intrson(wl->wlc); |
|
spin_unlock_irqrestore(&wl->isr_lock, flags); |
|
} |
|
|
|
u32 brcms_intrsoff(struct brcms_info *wl) |
|
{ |
|
unsigned long flags; |
|
u32 status; |
|
|
|
spin_lock_irqsave(&wl->isr_lock, flags); |
|
status = brcms_c_intrsoff(wl->wlc); |
|
spin_unlock_irqrestore(&wl->isr_lock, flags); |
|
return status; |
|
} |
|
|
|
void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask) |
|
{ |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&wl->isr_lock, flags); |
|
brcms_c_intrsrestore(wl->wlc, macintmask); |
|
spin_unlock_irqrestore(&wl->isr_lock, flags); |
|
} |
|
|
|
/* |
|
* precondition: perimeter lock has been acquired |
|
*/ |
|
int brcms_up(struct brcms_info *wl) |
|
{ |
|
int error = 0; |
|
|
|
if (wl->pub->up) |
|
return 0; |
|
|
|
error = brcms_c_up(wl->wlc); |
|
|
|
return error; |
|
} |
|
|
|
/* |
|
* precondition: perimeter lock has been acquired |
|
*/ |
|
void brcms_down(struct brcms_info *wl) |
|
__must_hold(&wl->lock) |
|
{ |
|
uint callbacks, ret_val = 0; |
|
|
|
/* call common down function */ |
|
ret_val = brcms_c_down(wl->wlc); |
|
callbacks = atomic_read(&wl->callbacks) - ret_val; |
|
|
|
/* wait for down callbacks to complete */ |
|
spin_unlock_bh(&wl->lock); |
|
|
|
/* For HIGH_only driver, it's important to actually schedule other work, |
|
* not just spin wait since everything runs at schedule level |
|
*/ |
|
SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000); |
|
|
|
spin_lock_bh(&wl->lock); |
|
} |
|
|
|
/* |
|
* precondition: perimeter lock is not acquired |
|
*/ |
|
static void _brcms_timer(struct work_struct *work) |
|
{ |
|
struct brcms_timer *t = container_of(work, struct brcms_timer, |
|
dly_wrk.work); |
|
|
|
spin_lock_bh(&t->wl->lock); |
|
|
|
if (t->set) { |
|
if (t->periodic) { |
|
atomic_inc(&t->wl->callbacks); |
|
ieee80211_queue_delayed_work(t->wl->pub->ieee_hw, |
|
&t->dly_wrk, |
|
msecs_to_jiffies(t->ms)); |
|
} else { |
|
t->set = false; |
|
} |
|
|
|
t->fn(t->arg); |
|
} |
|
|
|
atomic_dec(&t->wl->callbacks); |
|
|
|
spin_unlock_bh(&t->wl->lock); |
|
} |
|
|
|
/* |
|
* Adds a timer to the list. Caller supplies a timer function. |
|
* Is called from wlc. |
|
* |
|
* precondition: perimeter lock has been acquired |
|
*/ |
|
struct brcms_timer *brcms_init_timer(struct brcms_info *wl, |
|
void (*fn) (void *arg), |
|
void *arg, const char *name) |
|
{ |
|
struct brcms_timer *t; |
|
|
|
t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC); |
|
if (!t) |
|
return NULL; |
|
|
|
INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer); |
|
t->wl = wl; |
|
t->fn = fn; |
|
t->arg = arg; |
|
t->next = wl->timers; |
|
wl->timers = t; |
|
|
|
#ifdef DEBUG |
|
t->name = kstrdup(name, GFP_ATOMIC); |
|
#endif |
|
|
|
return t; |
|
} |
|
|
|
/* |
|
* adds only the kernel timer since it's going to be more accurate |
|
* as well as it's easier to make it periodic |
|
* |
|
* precondition: perimeter lock has been acquired |
|
*/ |
|
void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic) |
|
{ |
|
struct ieee80211_hw *hw = t->wl->pub->ieee_hw; |
|
|
|
#ifdef DEBUG |
|
if (t->set) |
|
brcms_dbg_info(t->wl->wlc->hw->d11core, |
|
"%s: Already set. Name: %s, per %d\n", |
|
__func__, t->name, periodic); |
|
#endif |
|
t->ms = ms; |
|
t->periodic = (bool) periodic; |
|
if (!t->set) { |
|
t->set = true; |
|
atomic_inc(&t->wl->callbacks); |
|
} |
|
|
|
ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms)); |
|
} |
|
|
|
/* |
|
* return true if timer successfully deleted, false if still pending |
|
* |
|
* precondition: perimeter lock has been acquired |
|
*/ |
|
bool brcms_del_timer(struct brcms_timer *t) |
|
{ |
|
if (t->set) { |
|
t->set = false; |
|
if (!cancel_delayed_work(&t->dly_wrk)) |
|
return false; |
|
|
|
atomic_dec(&t->wl->callbacks); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
/* |
|
* precondition: perimeter lock has been acquired |
|
*/ |
|
void brcms_free_timer(struct brcms_timer *t) |
|
{ |
|
struct brcms_info *wl = t->wl; |
|
struct brcms_timer *tmp; |
|
|
|
/* delete the timer in case it is active */ |
|
brcms_del_timer(t); |
|
|
|
if (wl->timers == t) { |
|
wl->timers = wl->timers->next; |
|
#ifdef DEBUG |
|
kfree(t->name); |
|
#endif |
|
kfree(t); |
|
return; |
|
|
|
} |
|
|
|
tmp = wl->timers; |
|
while (tmp) { |
|
if (tmp->next == t) { |
|
tmp->next = t->next; |
|
#ifdef DEBUG |
|
kfree(t->name); |
|
#endif |
|
kfree(t); |
|
return; |
|
} |
|
tmp = tmp->next; |
|
} |
|
|
|
} |
|
|
|
/* |
|
* precondition: no locking required |
|
*/ |
|
int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx) |
|
{ |
|
int i, entry; |
|
const u8 *pdata; |
|
struct firmware_hdr *hdr; |
|
for (i = 0; i < wl->fw.fw_cnt; i++) { |
|
hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data; |
|
for (entry = 0; entry < wl->fw.hdr_num_entries[i]; |
|
entry++, hdr++) { |
|
u32 len = le32_to_cpu(hdr->len); |
|
if (le32_to_cpu(hdr->idx) == idx) { |
|
pdata = wl->fw.fw_bin[i]->data + |
|
le32_to_cpu(hdr->offset); |
|
*pbuf = kvmalloc(len, GFP_KERNEL); |
|
if (*pbuf == NULL) |
|
goto fail; |
|
memcpy(*pbuf, pdata, len); |
|
return 0; |
|
} |
|
} |
|
} |
|
brcms_err(wl->wlc->hw->d11core, |
|
"ERROR: ucode buf tag:%d can not be found!\n", idx); |
|
*pbuf = NULL; |
|
fail: |
|
return -ENODATA; |
|
} |
|
|
|
/* |
|
* Precondition: Since this function is called in brcms_bcma_probe() context, |
|
* no locking is required. |
|
*/ |
|
int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx) |
|
{ |
|
int i, entry; |
|
const u8 *pdata; |
|
struct firmware_hdr *hdr; |
|
for (i = 0; i < wl->fw.fw_cnt; i++) { |
|
hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data; |
|
for (entry = 0; entry < wl->fw.hdr_num_entries[i]; |
|
entry++, hdr++) { |
|
if (le32_to_cpu(hdr->idx) == idx) { |
|
pdata = wl->fw.fw_bin[i]->data + |
|
le32_to_cpu(hdr->offset); |
|
if (le32_to_cpu(hdr->len) != 4) { |
|
brcms_err(wl->wlc->hw->d11core, |
|
"ERROR: fw hdr len\n"); |
|
return -ENOMSG; |
|
} |
|
*n_bytes = le32_to_cpu(*((__le32 *) pdata)); |
|
return 0; |
|
} |
|
} |
|
} |
|
brcms_err(wl->wlc->hw->d11core, |
|
"ERROR: ucode tag:%d can not be found!\n", idx); |
|
return -ENOMSG; |
|
} |
|
|
|
/* |
|
* precondition: can both be called locked and unlocked |
|
*/ |
|
void brcms_ucode_free_buf(void *p) |
|
{ |
|
kvfree(p); |
|
} |
|
|
|
/* |
|
* checks validity of all firmware images loaded from user space |
|
* |
|
* Precondition: Since this function is called in brcms_bcma_probe() context, |
|
* no locking is required. |
|
*/ |
|
int brcms_check_firmwares(struct brcms_info *wl) |
|
{ |
|
int i; |
|
int entry; |
|
int rc = 0; |
|
const struct firmware *fw; |
|
const struct firmware *fw_hdr; |
|
struct firmware_hdr *ucode_hdr; |
|
for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) { |
|
fw = wl->fw.fw_bin[i]; |
|
fw_hdr = wl->fw.fw_hdr[i]; |
|
if (fw == NULL && fw_hdr == NULL) { |
|
break; |
|
} else if (fw == NULL || fw_hdr == NULL) { |
|
wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n", |
|
__func__); |
|
rc = -EBADF; |
|
} else if (fw_hdr->size % sizeof(struct firmware_hdr)) { |
|
wiphy_err(wl->wiphy, "%s: non integral fw hdr file " |
|
"size %zu/%zu\n", __func__, fw_hdr->size, |
|
sizeof(struct firmware_hdr)); |
|
rc = -EBADF; |
|
} else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) { |
|
wiphy_err(wl->wiphy, "%s: out of bounds fw file size %zu\n", |
|
__func__, fw->size); |
|
rc = -EBADF; |
|
} else { |
|
/* check if ucode section overruns firmware image */ |
|
ucode_hdr = (struct firmware_hdr *)fw_hdr->data; |
|
for (entry = 0; entry < wl->fw.hdr_num_entries[i] && |
|
!rc; entry++, ucode_hdr++) { |
|
if (le32_to_cpu(ucode_hdr->offset) + |
|
le32_to_cpu(ucode_hdr->len) > |
|
fw->size) { |
|
wiphy_err(wl->wiphy, |
|
"%s: conflicting bin/hdr\n", |
|
__func__); |
|
rc = -EBADF; |
|
} |
|
} |
|
} |
|
} |
|
if (rc == 0 && wl->fw.fw_cnt != i) { |
|
wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__, |
|
wl->fw.fw_cnt); |
|
rc = -EBADF; |
|
} |
|
return rc; |
|
} |
|
|
|
/* |
|
* precondition: perimeter lock has been acquired |
|
*/ |
|
bool brcms_rfkill_set_hw_state(struct brcms_info *wl) |
|
__must_hold(&wl->lock) |
|
{ |
|
bool blocked = brcms_c_check_radio_disabled(wl->wlc); |
|
|
|
spin_unlock_bh(&wl->lock); |
|
wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked); |
|
if (blocked) |
|
wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy); |
|
spin_lock_bh(&wl->lock); |
|
return blocked; |
|
}
|
|
|