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mt76: move dfs support in mt76x02-lib module

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Move mt76x2 DFS support in mt76x02-lib module in order to
be reused by mt76x0 driver and unlock DFS frequencies

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2018-10-22 23:42:12 +02:00 committed by Felix Fietkau
parent cc726268e4
commit e6cb329105
8 changed files with 83 additions and 102 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/wireless/mediatek/mt76/Makefile
View File

@ -14,7 +14,8 @@ CFLAGS_mt76x02_trace.o := -I$(src)
mt76x02-lib-y := mt76x02_util.o mt76x02_mac.o mt76x02_mcu.o \
mt76x02_eeprom.o mt76x02_phy.o mt76x02_mmio.o \
mt76x02_txrx.o mt76x02_trace.o mt76x02_debugfs.o
mt76x02_txrx.o mt76x02_trace.o mt76x02_debugfs.o \
mt76x02_dfs.o
mt76x02-usb-y := mt76x02_usb_mcu.o mt76x02_usb_core.o

135
drivers/net/wireless/mediatek/mt76/mt76x2/pci_dfs.c → drivers/net/wireless/mediatek/mt76/mt76x02_dfs.c
View File

@ -14,7 +14,7 @@
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "mt76x2.h"
#include "mt76x02.h"
#define RADAR_SPEC(m, len, el, eh, wl, wh, \
w_tolerance, tl, th, t_tolerance, \
@ -151,8 +151,7 @@ static const struct mt76x02_radar_specs jp_w53_radar_specs[] = {
};
static void
mt76x2_dfs_set_capture_mode_ctrl(struct mt76x02_dev *dev,
u8 enable)
mt76x02_dfs_set_capture_mode_ctrl(struct mt76x02_dev *dev, u8 enable)
{
u32 data;
@ -160,8 +159,8 @@ mt76x2_dfs_set_capture_mode_ctrl(struct mt76x02_dev *dev,
mt76_wr(dev, MT_BBP(DFS, 36), data);
}
static void mt76x2_dfs_seq_pool_put(struct mt76x02_dev *dev,
struct mt76x02_dfs_sequence *seq)
static void mt76x02_dfs_seq_pool_put(struct mt76x02_dev *dev,
struct mt76x02_dfs_sequence *seq)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
@ -172,7 +171,7 @@ static void mt76x2_dfs_seq_pool_put(struct mt76x02_dev *dev,
}
static struct mt76x02_dfs_sequence *
mt76x2_dfs_seq_pool_get(struct mt76x02_dev *dev)
mt76x02_dfs_seq_pool_get(struct mt76x02_dev *dev)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
struct mt76x02_dfs_sequence *seq;
@ -192,7 +191,7 @@ mt76x2_dfs_seq_pool_get(struct mt76x02_dev *dev)
return seq;
}
static int mt76x2_dfs_get_multiple(int val, int frac, int margin)
static int mt76x02_dfs_get_multiple(int val, int frac, int margin)
{
int remainder, factor;
@ -214,7 +213,7 @@ static int mt76x2_dfs_get_multiple(int val, int frac, int margin)
return factor;
}
static void mt76x2_dfs_detector_reset(struct mt76x02_dev *dev)
static void mt76x02_dfs_detector_reset(struct mt76x02_dev *dev)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
struct mt76x02_dfs_sequence *seq, *tmp_seq;
@ -231,11 +230,11 @@ static void mt76x2_dfs_detector_reset(struct mt76x02_dev *dev)
list_for_each_entry_safe(seq, tmp_seq, &dfs_pd->sequences, head) {
list_del_init(&seq->head);
mt76x2_dfs_seq_pool_put(dev, seq);
mt76x02_dfs_seq_pool_put(dev, seq);
}
}
static bool mt76x2_dfs_check_chirp(struct mt76x02_dev *dev)
static bool mt76x02_dfs_check_chirp(struct mt76x02_dev *dev)
{
bool ret = false;
u32 current_ts, delta_ts;
@ -256,8 +255,8 @@ static bool mt76x2_dfs_check_chirp(struct mt76x02_dev *dev)
return ret;
}
static void mt76x2_dfs_get_hw_pulse(struct mt76x02_dev *dev,
struct mt76x02_dfs_hw_pulse *pulse)
static void mt76x02_dfs_get_hw_pulse(struct mt76x02_dev *dev,
struct mt76x02_dfs_hw_pulse *pulse)
{
u32 data;
@ -276,8 +275,8 @@ static void mt76x2_dfs_get_hw_pulse(struct mt76x02_dev *dev,
pulse->burst = mt76_rr(dev, MT_BBP(DFS, 22));
}
static bool mt76x2_dfs_check_hw_pulse(struct mt76x02_dev *dev,
struct mt76x02_dfs_hw_pulse *pulse)
static bool mt76x02_dfs_check_hw_pulse(struct mt76x02_dev *dev,
struct mt76x02_dfs_hw_pulse *pulse)
{
bool ret = false;
@ -290,7 +289,7 @@ static bool mt76x2_dfs_check_hw_pulse(struct mt76x02_dev *dev,
break;
if (pulse->engine == 3) {
ret = mt76x2_dfs_check_chirp(dev);
ret = mt76x02_dfs_check_chirp(dev);
break;
}
@ -334,7 +333,7 @@ static bool mt76x2_dfs_check_hw_pulse(struct mt76x02_dev *dev,
break;
if (pulse->engine == 3) {
ret = mt76x2_dfs_check_chirp(dev);
ret = mt76x02_dfs_check_chirp(dev);
break;
}
@ -371,8 +370,8 @@ static bool mt76x2_dfs_check_hw_pulse(struct mt76x02_dev *dev,
return ret;
}
static bool mt76x2_dfs_fetch_event(struct mt76x02_dev *dev,
struct mt76x02_dfs_event *event)
static bool mt76x02_dfs_fetch_event(struct mt76x02_dev *dev,
struct mt76x02_dfs_event *event)
{
u32 data;
@ -398,8 +397,8 @@ static bool mt76x2_dfs_fetch_event(struct mt76x02_dev *dev,
return true;
}
static bool mt76x2_dfs_check_event(struct mt76x02_dev *dev,
struct mt76x02_dfs_event *event)
static bool mt76x02_dfs_check_event(struct mt76x02_dev *dev,
struct mt76x02_dfs_event *event)
{
if (event->engine == 2) {
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
@ -417,8 +416,8 @@ static bool mt76x2_dfs_check_event(struct mt76x02_dev *dev,
return true;
}
static void mt76x2_dfs_queue_event(struct mt76x02_dev *dev,
struct mt76x02_dfs_event *event)
static void mt76x02_dfs_queue_event(struct mt76x02_dev *dev,
struct mt76x02_dfs_event *event)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
struct mt76x02_dfs_event_rb *event_buff;
@ -435,9 +434,9 @@ static void mt76x2_dfs_queue_event(struct mt76x02_dev *dev,
MT_DFS_EVENT_BUFLEN);
}
static int mt76x2_dfs_create_sequence(struct mt76x02_dev *dev,
struct mt76x02_dfs_event *event,
u16 cur_len)
static int mt76x02_dfs_create_sequence(struct mt76x02_dev *dev,
struct mt76x02_dfs_event *event,
u16 cur_len)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
struct mt76x02_dfs_sw_detector_params *sw_params;
@ -497,7 +496,7 @@ static int mt76x2_dfs_create_sequence(struct mt76x02_dev *dev,
while (j != end) {
cur_event = &event_rb->data[j];
cur_pri = event->ts - cur_event->ts;
factor = mt76x2_dfs_get_multiple(cur_pri, seq.pri,
factor = mt76x02_dfs_get_multiple(cur_pri, seq.pri,
sw_params->pri_margin);
if (factor > 0) {
seq.first_ts = cur_event->ts;
@ -509,7 +508,7 @@ static int mt76x2_dfs_create_sequence(struct mt76x02_dev *dev,
if (seq.count <= cur_len)
goto next;
seq_p = mt76x2_dfs_seq_pool_get(dev);
seq_p = mt76x02_dfs_seq_pool_get(dev);
if (!seq_p)
return -ENOMEM;
@ -522,8 +521,8 @@ next:
return 0;
}
static u16 mt76x2_dfs_add_event_to_sequence(struct mt76x02_dev *dev,
struct mt76x02_dfs_event *event)
static u16 mt76x02_dfs_add_event_to_sequence(struct mt76x02_dev *dev,
struct mt76x02_dfs_event *event)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
struct mt76x02_dfs_sw_detector_params *sw_params;
@ -535,7 +534,7 @@ static u16 mt76x2_dfs_add_event_to_sequence(struct mt76x02_dev *dev,
list_for_each_entry_safe(seq, tmp_seq, &dfs_pd->sequences, head) {
if (event->ts > seq->first_ts + MT_DFS_SEQUENCE_WINDOW) {
list_del_init(&seq->head);
mt76x2_dfs_seq_pool_put(dev, seq);
mt76x02_dfs_seq_pool_put(dev, seq);
continue;
}
@ -543,8 +542,8 @@ static u16 mt76x2_dfs_add_event_to_sequence(struct mt76x02_dev *dev,
continue;
pri = event->ts - seq->last_ts;
factor = mt76x2_dfs_get_multiple(pri, seq->pri,
sw_params->pri_margin);
factor = mt76x02_dfs_get_multiple(pri, seq->pri,
sw_params->pri_margin);
if (factor > 0) {
seq->last_ts = event->ts;
seq->count++;
@ -554,7 +553,7 @@ static u16 mt76x2_dfs_add_event_to_sequence(struct mt76x02_dev *dev,
return max_seq_len;
}
static bool mt76x2_dfs_check_detection(struct mt76x02_dev *dev)
static bool mt76x02_dfs_check_detection(struct mt76x02_dev *dev)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
struct mt76x02_dfs_sequence *seq;
@ -571,34 +570,34 @@ static bool mt76x2_dfs_check_detection(struct mt76x02_dev *dev)
return false;
}
static void mt76x2_dfs_add_events(struct mt76x02_dev *dev)
static void mt76x02_dfs_add_events(struct mt76x02_dev *dev)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
struct mt76x02_dfs_event event;
int i, seq_len;
/* disable debug mode */
mt76x2_dfs_set_capture_mode_ctrl(dev, false);
mt76x02_dfs_set_capture_mode_ctrl(dev, false);
for (i = 0; i < MT_DFS_EVENT_LOOP; i++) {
if (!mt76x2_dfs_fetch_event(dev, &event))
if (!mt76x02_dfs_fetch_event(dev, &event))
break;
if (dfs_pd->last_event_ts > event.ts)
mt76x2_dfs_detector_reset(dev);
mt76x02_dfs_detector_reset(dev);
dfs_pd->last_event_ts = event.ts;
if (!mt76x2_dfs_check_event(dev, &event))
if (!mt76x02_dfs_check_event(dev, &event))
continue;
seq_len = mt76x2_dfs_add_event_to_sequence(dev, &event);
mt76x2_dfs_create_sequence(dev, &event, seq_len);
seq_len = mt76x02_dfs_add_event_to_sequence(dev, &event);
mt76x02_dfs_create_sequence(dev, &event, seq_len);
mt76x2_dfs_queue_event(dev, &event);
mt76x02_dfs_queue_event(dev, &event);
}
mt76x2_dfs_set_capture_mode_ctrl(dev, true);
mt76x02_dfs_set_capture_mode_ctrl(dev, true);
}
static void mt76x2_dfs_check_event_window(struct mt76x02_dev *dev)
static void mt76x02_dfs_check_event_window(struct mt76x02_dev *dev)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
struct mt76x02_dfs_event_rb *event_buff;
@ -621,7 +620,7 @@ static void mt76x2_dfs_check_event_window(struct mt76x02_dev *dev)
}
}
static void mt76x2_dfs_tasklet(unsigned long arg)
static void mt76x02_dfs_tasklet(unsigned long arg)
{
struct mt76x02_dev *dev = (struct mt76x02_dev *)arg;
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
@ -637,16 +636,16 @@ static void mt76x2_dfs_tasklet(unsigned long arg)
dfs_pd->last_sw_check = jiffies;
mt76x2_dfs_add_events(dev);
radar_detected = mt76x2_dfs_check_detection(dev);
mt76x02_dfs_add_events(dev);
radar_detected = mt76x02_dfs_check_detection(dev);
if (radar_detected) {
/* sw detector rx radar pattern */
ieee80211_radar_detected(dev->mt76.hw);
mt76x2_dfs_detector_reset(dev);
mt76x02_dfs_detector_reset(dev);
return;
}
mt76x2_dfs_check_event_window(dev);
mt76x02_dfs_check_event_window(dev);
}
engine_mask = mt76_rr(dev, MT_BBP(DFS, 1));
@ -660,9 +659,9 @@ static void mt76x2_dfs_tasklet(unsigned long arg)
continue;
pulse.engine = i;
mt76x2_dfs_get_hw_pulse(dev, &pulse);
mt76x02_dfs_get_hw_pulse(dev, &pulse);
if (!mt76x2_dfs_check_hw_pulse(dev, &pulse)) {
if (!mt76x02_dfs_check_hw_pulse(dev, &pulse)) {
dfs_pd->stats[i].hw_pulse_discarded++;
continue;
}
@ -670,7 +669,7 @@ static void mt76x2_dfs_tasklet(unsigned long arg)
/* hw detector rx radar pattern */
dfs_pd->stats[i].hw_pattern++;
ieee80211_radar_detected(dev->mt76.hw);
mt76x2_dfs_detector_reset(dev);
mt76x02_dfs_detector_reset(dev);
return;
}
@ -682,7 +681,7 @@ out:
mt76x02_irq_enable(dev, MT_INT_GPTIMER);
}
static void mt76x2_dfs_init_sw_detector(struct mt76x02_dev *dev)
static void mt76x02_dfs_init_sw_detector(struct mt76x02_dev *dev)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
@ -708,7 +707,7 @@ static void mt76x2_dfs_init_sw_detector(struct mt76x02_dev *dev)
}
}
static void mt76x2_dfs_set_bbp_params(struct mt76x02_dev *dev)
static void mt76x02_dfs_set_bbp_params(struct mt76x02_dev *dev)
{
const struct mt76x02_radar_specs *radar_specs;
u8 i, shift;
@ -803,16 +802,16 @@ static void mt76x2_dfs_set_bbp_params(struct mt76x02_dev *dev)
mt76_wr(dev, 0x212c, 0x0c350001);
}
void mt76x2_dfs_init_params(struct mt76x02_dev *dev)
void mt76x02_dfs_init_params(struct mt76x02_dev *dev)
{
struct cfg80211_chan_def *chandef = &dev->mt76.chandef;
if ((chandef->chan->flags & IEEE80211_CHAN_RADAR) &&
dev->dfs_pd.region != NL80211_DFS_UNSET) {
mt76x2_dfs_init_sw_detector(dev);
mt76x2_dfs_set_bbp_params(dev);
mt76x02_dfs_init_sw_detector(dev);
mt76x02_dfs_set_bbp_params(dev);
/* enable debug mode */
mt76x2_dfs_set_capture_mode_ctrl(dev, true);
mt76x02_dfs_set_capture_mode_ctrl(dev, true);
mt76x02_irq_enable(dev, MT_INT_GPTIMER);
mt76_rmw_field(dev, MT_INT_TIMER_EN,
@ -829,8 +828,9 @@ void mt76x2_dfs_init_params(struct mt76x02_dev *dev)
MT_INT_TIMER_EN_GP_TIMER_EN, 0);
}
}
EXPORT_SYMBOL_GPL(mt76x02_dfs_init_params);
void mt76x2_dfs_init_detector(struct mt76x02_dev *dev)
void mt76x02_dfs_init_detector(struct mt76x02_dev *dev)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
@ -838,20 +838,31 @@ void mt76x2_dfs_init_detector(struct mt76x02_dev *dev)
INIT_LIST_HEAD(&dfs_pd->seq_pool);
dfs_pd->region = NL80211_DFS_UNSET;
dfs_pd->last_sw_check = jiffies;
tasklet_init(&dfs_pd->dfs_tasklet, mt76x2_dfs_tasklet,
tasklet_init(&dfs_pd->dfs_tasklet, mt76x02_dfs_tasklet,
(unsigned long)dev);
}
EXPORT_SYMBOL_GPL(mt76x02_dfs_init_detector);
void mt76x2_dfs_set_domain(struct mt76x02_dev *dev,
enum nl80211_dfs_regions region)
static void
mt76x02_dfs_set_domain(struct mt76x02_dev *dev,
enum nl80211_dfs_regions region)
{
struct mt76x02_dfs_pattern_detector *dfs_pd = &dev->dfs_pd;
if (dfs_pd->region != region) {
tasklet_disable(&dfs_pd->dfs_tasklet);
dfs_pd->region = region;
mt76x2_dfs_init_params(dev);
mt76x02_dfs_init_params(dev);
tasklet_enable(&dfs_pd->dfs_tasklet);
}
}
void mt76x02_regd_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct mt76x02_dev *dev = hw->priv;
mt76x02_dfs_set_domain(dev, request->dfs_region);
}
EXPORT_SYMBOL_GPL(mt76x02_regd_notifier);

4
drivers/net/wireless/mediatek/mt76/mt76x02_dfs.h
View File

@ -137,4 +137,8 @@ struct mt76x02_dfs_pattern_detector {
struct tasklet_struct dfs_tasklet;
};
void mt76x02_dfs_init_params(struct mt76x02_dev *dev);
void mt76x02_dfs_init_detector(struct mt76x02_dev *dev);
void mt76x02_regd_notifier(struct wiphy *wiphy,
struct regulatory_request *request);
#endif /* __MT76x02_DFS_H */

2
drivers/net/wireless/mediatek/mt76/mt76x2/Makefile
View File

@ -7,7 +7,7 @@ mt76x2-common-y := \
mt76x2e-y := \
pci.o pci_main.o pci_init.o pci_mcu.o \
pci_phy.o pci_dfs.o
pci_phy.o
mt76x2u-y := \
usb.o usb_init.o usb_main.o usb_mac.o usb_mcu.o \

25
drivers/net/wireless/mediatek/mt76/mt76x2/dfs.h
View File

@ -1,25 +0,0 @@
/*
* Copyright (C) 2016 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
*
* 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.
*/
#ifndef __DFS_H
#define __DFS_H
void mt76x2_dfs_init_params(struct mt76x02_dev *dev);
void mt76x2_dfs_init_detector(struct mt76x02_dev *dev);
void mt76x2_dfs_set_domain(struct mt76x02_dev *dev,
enum nl80211_dfs_regions region);
#endif /* __DFS_H */

1
drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2.h
View File

@ -33,7 +33,6 @@
#include "../mt76x02.h"
#include "mac.h"
#include "dfs.h"
static inline bool is_mt7612(struct mt76x02_dev *dev)
{

13
drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c
View File

@ -338,15 +338,6 @@ struct mt76x02_dev *mt76x2_alloc_device(struct device *pdev)
return dev;
}
static void mt76x2_regd_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct mt76x02_dev *dev = hw->priv;
mt76x2_dfs_set_domain(dev, request->dfs_region);
}
static void mt76x2_led_set_config(struct mt76_dev *mt76, u8 delay_on,
u8 delay_off)
{
@ -423,11 +414,11 @@ int mt76x2_register_device(struct mt76x02_dev *dev)
wiphy->addresses = dev->macaddr_list;
wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list);
wiphy->reg_notifier = mt76x2_regd_notifier;
wiphy->reg_notifier = mt76x02_regd_notifier;
wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
mt76x2_dfs_init_detector(dev);
mt76x02_dfs_init_detector(dev);
/* init led callbacks */
dev->mt76.led_cdev.brightness_set = mt76x2_led_set_brightness;

2
drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c
View File

@ -74,7 +74,7 @@ mt76x2_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef)
mt76_rr(dev, MT_CH_IDLE);
mt76_rr(dev, MT_CH_BUSY);
mt76x2_dfs_init_params(dev);
mt76x02_dfs_init_params(dev);
mt76x2_mac_resume(dev);
tasklet_enable(&dev->dfs_pd.dfs_tasklet);