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mt76: mt7921: introduce testmode support
We add the testmode support to access the testmode feature provided by the MT7921 firmware. Tested-by: Sean Wang <sean.wang@mediatek.com> Co-developed-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,197 @@ | ||
// SPDX-License-Identifier: ISC | ||
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#include "mt7921.h" | ||
#include "mcu.h" | ||
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enum mt7921_testmode_attr { | ||
MT7921_TM_ATTR_UNSPEC, | ||
MT7921_TM_ATTR_SET, | ||
MT7921_TM_ATTR_QUERY, | ||
MT7921_TM_ATTR_RSP, | ||
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/* keep last */ | ||
NUM_MT7921_TM_ATTRS, | ||
MT7921_TM_ATTR_MAX = NUM_MT7921_TM_ATTRS - 1, | ||
}; | ||
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struct mt7921_tm_cmd { | ||
u8 action; | ||
u32 param0; | ||
u32 param1; | ||
}; | ||
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struct mt7921_tm_evt { | ||
u32 param0; | ||
u32 param1; | ||
}; | ||
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static const struct nla_policy mt7921_tm_policy[NUM_MT7921_TM_ATTRS] = { | ||
[MT7921_TM_ATTR_SET] = NLA_POLICY_EXACT_LEN(sizeof(struct mt7921_tm_cmd)), | ||
[MT7921_TM_ATTR_QUERY] = NLA_POLICY_EXACT_LEN(sizeof(struct mt7921_tm_cmd)), | ||
}; | ||
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static int | ||
mt7921_tm_set(struct mt7921_dev *dev, struct mt7921_tm_cmd *req) | ||
{ | ||
struct mt7921_rftest_cmd cmd = { | ||
.action = req->action, | ||
.param0 = cpu_to_le32(req->param0), | ||
.param1 = cpu_to_le32(req->param1), | ||
}; | ||
bool testmode = false, normal = false; | ||
struct mt76_connac_pm *pm = &dev->pm; | ||
struct mt76_phy *phy = &dev->mphy; | ||
int ret = -ENOTCONN; | ||
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mutex_lock(&dev->mt76.mutex); | ||
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if (req->action == TM_SWITCH_MODE) { | ||
if (req->param0 == MT7921_TM_NORMAL) | ||
normal = true; | ||
else | ||
testmode = true; | ||
} | ||
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if (testmode) { | ||
/* Make sure testmode running on full power mode */ | ||
pm->enable = false; | ||
cancel_delayed_work_sync(&pm->ps_work); | ||
cancel_work_sync(&pm->wake_work); | ||
__mt7921_mcu_drv_pmctrl(dev); | ||
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mt76_wr(dev, MT_WF_RFCR(0), dev->mt76.rxfilter); | ||
phy->test.state = MT76_TM_STATE_ON; | ||
} | ||
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if (!mt76_testmode_enabled(phy)) | ||
goto out; | ||
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ret = mt76_mcu_send_msg(&dev->mt76, MCU_CMD_TEST_CTRL, &cmd, | ||
sizeof(cmd), false); | ||
if (ret) | ||
goto out; | ||
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if (normal) { | ||
/* Switch back to the normal world */ | ||
phy->test.state = MT76_TM_STATE_OFF; | ||
pm->enable = true; | ||
} | ||
out: | ||
mutex_unlock(&dev->mt76.mutex); | ||
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return ret; | ||
} | ||
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static int | ||
mt7921_tm_query(struct mt7921_dev *dev, struct mt7921_tm_cmd *req, | ||
struct mt7921_tm_evt *evt_resp) | ||
{ | ||
struct mt7921_rftest_cmd cmd = { | ||
.action = req->action, | ||
.param0 = cpu_to_le32(req->param0), | ||
.param1 = cpu_to_le32(req->param1), | ||
}; | ||
struct mt7921_rftest_evt *evt; | ||
struct sk_buff *skb; | ||
int ret; | ||
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ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_CMD_TEST_CTRL, | ||
&cmd, sizeof(cmd), true, &skb); | ||
if (ret) | ||
goto out; | ||
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evt = (struct mt7921_rftest_evt *)skb->data; | ||
evt_resp->param0 = le32_to_cpu(evt->param0); | ||
evt_resp->param1 = le32_to_cpu(evt->param1); | ||
out: | ||
dev_kfree_skb(skb); | ||
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return ret; | ||
} | ||
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int mt7921_testmode_cmd(struct ieee80211_hw *hw, struct ieee80211_vif *vif, | ||
void *data, int len) | ||
{ | ||
struct nlattr *tb[NUM_MT76_TM_ATTRS]; | ||
struct mt76_phy *mphy = hw->priv; | ||
struct mt7921_phy *phy = mphy->priv; | ||
int err; | ||
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if (!test_bit(MT76_STATE_RUNNING, &mphy->state) || | ||
!(hw->conf.flags & IEEE80211_CONF_MONITOR)) | ||
return -ENOTCONN; | ||
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err = nla_parse_deprecated(tb, MT76_TM_ATTR_MAX, data, len, | ||
mt76_tm_policy, NULL); | ||
if (err) | ||
return err; | ||
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if (tb[MT76_TM_ATTR_DRV_DATA]) { | ||
struct nlattr *drv_tb[NUM_MT7921_TM_ATTRS], *data; | ||
int ret; | ||
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data = tb[MT76_TM_ATTR_DRV_DATA]; | ||
ret = nla_parse_nested_deprecated(drv_tb, | ||
MT7921_TM_ATTR_MAX, | ||
data, mt7921_tm_policy, | ||
NULL); | ||
if (ret) | ||
return ret; | ||
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data = drv_tb[MT7921_TM_ATTR_SET]; | ||
if (data) | ||
return mt7921_tm_set(phy->dev, nla_data(data)); | ||
} | ||
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return -EINVAL; | ||
} | ||
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int mt7921_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *msg, | ||
struct netlink_callback *cb, void *data, int len) | ||
{ | ||
struct nlattr *tb[NUM_MT76_TM_ATTRS]; | ||
struct mt76_phy *mphy = hw->priv; | ||
struct mt7921_phy *phy = mphy->priv; | ||
int err; | ||
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if (!test_bit(MT76_STATE_RUNNING, &mphy->state) || | ||
!(hw->conf.flags & IEEE80211_CONF_MONITOR) || | ||
!mt76_testmode_enabled(mphy)) | ||
return -ENOTCONN; | ||
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if (cb->args[2]++ > 0) | ||
return -ENOENT; | ||
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err = nla_parse_deprecated(tb, MT76_TM_ATTR_MAX, data, len, | ||
mt76_tm_policy, NULL); | ||
if (err) | ||
return err; | ||
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if (tb[MT76_TM_ATTR_DRV_DATA]) { | ||
struct nlattr *drv_tb[NUM_MT7921_TM_ATTRS], *data; | ||
int ret; | ||
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data = tb[MT76_TM_ATTR_DRV_DATA]; | ||
ret = nla_parse_nested_deprecated(drv_tb, | ||
MT7921_TM_ATTR_MAX, | ||
data, mt7921_tm_policy, | ||
NULL); | ||
if (ret) | ||
return ret; | ||
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data = drv_tb[MT7921_TM_ATTR_QUERY]; | ||
if (data) { | ||
struct mt7921_tm_evt evt_resp; | ||
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err = mt7921_tm_query(phy->dev, nla_data(data), | ||
&evt_resp); | ||
if (err) | ||
return err; | ||
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return nla_put(msg, MT7921_TM_ATTR_RSP, | ||
sizeof(evt_resp), &evt_resp); | ||
} | ||
} | ||
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return -EINVAL; | ||
} |
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