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wifi: mt76: mt7996: rework radar HWRDD idx

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The definition of MT_RX_SEL (for rdd_rx_sel) is mixed with the
definition of HWRDD idx.
For example, MT_RX_SEL2 is for background HWRDD idx, not an
option of rdd_rx_sel.
Additionally, HWRDD idx does not exactly map to band idx for
Connac 3 chips. So, add mt7996_get_rdd_idx as a helper function.

Finally, remove some parts of the code inherited from the legacy chips.
For instance,
1. rdd_state is used for single-band-dual-HWRDD chips (for 80+80),
especially the 76xx series.
2. rdd_rx_sel is also used for single-band-dual-HWRDD chips
rx_sel = 0 => RDD0 for WF0, RDD1 for WF2
rx_sel = 1 => RDD0 for WF1, RDD1 for WF3

Chip Variants              | 5G rdd idx     | Background rdd idx
---------------------------|----------------|-------------------
MT7996 (except 205/255)    | 1              | 2
MT7992                     | 1              | 2
MT7990                     | 1              | 2

Signed-off-by: StanleyYP Wang <[email protected]>
Reviewed-by: Shayne Chen <[email protected]>
Reviewed-by: Money Wang <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
StanleyYP Wang
2025-04-11 10:40:33 +02:00
committed by Felix Fietkau
parent 9bacdb2bf2
commit a19543c7e0
5 changed files with 75 additions and 69 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mt7996/debugfs.c
+13 -4
View File
@@ -222,18 +222,27 @@ static const struct file_operations mt7996_sys_recovery_ops = {
static int
mt7996_radar_trigger(void *data, u64 val)
{
#define RADAR_MAIN_CHAIN 1
#define RADAR_BACKGROUND 2
struct mt7996_dev *dev = data;
struct mt7996_phy *phy = mt7996_band_phy(dev, NL80211_BAND_5GHZ);
int rdd_idx;
if (val > MT_RX_SEL2)
if (!phy || !val || val > RADAR_BACKGROUND)
return -EINVAL;
if (val == MT_RX_SEL2 && !dev->rdd2_phy) {
if (val == RADAR_BACKGROUND && !dev->rdd2_phy) {
dev_err(dev->mt76.dev, "Background radar is not enabled\n");
return -EINVAL;
}
return mt7996_mcu_rdd_cmd(dev, RDD_RADAR_EMULATE,
val, 0, 0);
rdd_idx = mt7996_get_rdd_idx(phy, val == RADAR_BACKGROUND);
if (rdd_idx < 0) {
dev_err(dev->mt76.dev, "No RDD found\n");
return -EINVAL;
}
return mt7996_mcu_rdd_cmd(dev, RDD_RADAR_EMULATE, rdd_idx, 0);
}
DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_trigger, NULL,