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mt76: mt7615: add radar pattern test knob to debugfs

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Introduce mt7615_mcu_rdd_send_pattern routine to trigger a radar pattern
detection. Moreover move debugfs related routines in a dedicated source
file.

Suggested-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2019-06-29 12:36:11 +02:00 committed by Felix Fietkau
parent 5ec87dc8c3
commit 70911d9638
6 changed files with 81 additions and 14 deletions
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3
drivers/net/wireless/mediatek/mt76/mt7615/Makefile
View file

@ -2,4 +2,5 @@
obj-$(CONFIG_MT7615E) += mt7615e.o
mt7615e-y := pci.o init.o dma.o eeprom.o main.o mcu.o mac.o
mt7615e-y := pci.o init.o dma.o eeprom.o main.o mcu.o mac.o \
debugfs.o

38
drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c Normal file
View file

@ -0,0 +1,38 @@
/* SPDX-License-Identifier: ISC */
#include "mt7615.h"
static int
mt7615_radar_pattern_set(void *data, u64 val)
{
struct mt7615_dev *dev = data;
return mt7615_mcu_rdd_send_pattern(dev);
}
DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_pattern, NULL,
mt7615_radar_pattern_set, "%lld\n");
int mt7615_init_debugfs(struct mt7615_dev *dev)
{
struct dentry *dir;
dir = mt76_register_debugfs(&dev->mt76);
if (!dir)
return -ENOMEM;
debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);
/* test pattern knobs */
debugfs_create_u8("pattern_len", 0600, dir,
&dev->radar_pattern.n_pulses);
debugfs_create_u32("pulse_period", 0600, dir,
&dev->radar_pattern.period);
debugfs_create_u16("pulse_width", 0600, dir,
&dev->radar_pattern.width);
debugfs_create_u16("pulse_power", 0600, dir,
&dev->radar_pattern.power);
debugfs_create_file("radar_trigger", 0200, dir, dev,
&fops_radar_pattern);
return 0;
}

13
drivers/net/wireless/mediatek/mt76/mt7615/init.c
View file

@ -155,19 +155,6 @@ static const struct ieee80211_iface_combination if_comb[] = {
}
};
static int mt7615_init_debugfs(struct mt7615_dev *dev)
{
struct dentry *dir;
dir = mt76_register_debugfs(&dev->mt76);
if (!dir)
return -ENOMEM;
debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);
return 0;
}
static void
mt7615_init_txpower(struct mt7615_dev *dev,
struct ieee80211_supported_band *sband)

31
drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
View file

@ -1294,6 +1294,37 @@ int mt7615_mcu_rdd_cmd(struct mt7615_dev *dev,
&req, sizeof(req), true);
}
int mt7615_mcu_rdd_send_pattern(struct mt7615_dev *dev)
{
struct {
u8 pulse_num;
u8 rsv[3];
struct {
u32 start_time;
u16 width;
s16 power;
} pattern[32];
} req = {
.pulse_num = dev->radar_pattern.n_pulses,
};
u32 start_time = ktime_to_ms(ktime_get_boottime());
int i;
if (dev->radar_pattern.n_pulses > ARRAY_SIZE(req.pattern))
return -EINVAL;
/* TODO: add some noise here */
for (i = 0; i < dev->radar_pattern.n_pulses; i++) {
req.pattern[i].width = dev->radar_pattern.width;
req.pattern[i].power = dev->radar_pattern.power;
req.pattern[i].start_time = start_time +
i * dev->radar_pattern.period;
}
return __mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_SET_RDD_PATTERN,
&req, sizeof(req), false);
}
int mt7615_mcu_set_channel(struct mt7615_dev *dev)
{
struct cfg80211_chan_def *chandef = &dev->mt76.chandef;

1
drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
View file

@ -104,6 +104,7 @@ enum {
MCU_EXT_CMD_MAC_INIT_CTRL = 0x46,
MCU_EXT_CMD_BCN_OFFLOAD = 0x49,
MCU_EXT_CMD_SET_RX_PATH = 0x4e,
MCU_EXT_CMD_SET_RDD_PATTERN = 0x7d,
};
enum {

9
drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
View file

@ -68,6 +68,12 @@ struct mt7615_dev {
u32 vif_mask;
u32 omac_mask;
struct {
u8 n_pulses;
u32 period;
u16 width;
s16 power;
} radar_pattern;
u32 hw_pattern;
int dfs_state;
@ -177,6 +183,7 @@ int mt7615_mcu_rdd_cmd(struct mt7615_dev *dev,
u8 rx_sel, u8 val);
int mt7615_dfs_start_radar_detector(struct mt7615_dev *dev);
int mt7615_dfs_stop_radar_detector(struct mt7615_dev *dev);
int mt7615_mcu_rdd_send_pattern(struct mt7615_dev *dev);
static inline void mt7615_dfs_check_channel(struct mt7615_dev *dev)
{
@ -240,4 +247,6 @@ void mt7615_txp_skb_unmap(struct mt76_dev *dev,
int mt76_dfs_start_rdd(struct mt7615_dev *dev, bool force);
int mt7615_dfs_init_radar_detector(struct mt7615_dev *dev);
int mt7615_init_debugfs(struct mt7615_dev *dev);
#endif