47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
|
// SPDX-License-Identifier: ISC
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
|
||
|
|
* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "mt76x2.h"
|
||
|
|
|
||
|
|
void mt76x2_mac_stop(struct mt76x02_dev *dev, bool force)
|
||
|
|
{
|
||
|
|
bool stopped = false;
|
||
|
|
u32 rts_cfg;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
mt76_clear(dev, MT_TXOP_CTRL_CFG, MT_TXOP_ED_CCA_EN);
|
||
|
|
mt76_clear(dev, MT_TXOP_HLDR_ET, MT_TXOP_HLDR_TX40M_BLK_EN);
|
||
|
|
|
||
|
|
mt76_wr(dev, MT_MAC_SYS_CTRL, 0);
|
||
|
|
|
||
|
|
rts_cfg = mt76_rr(dev, MT_TX_RTS_CFG);
|
||
|
|
mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg & ~MT_TX_RTS_CFG_RETRY_LIMIT);
|
||
|
|
|
||
|
|
/* Wait for MAC to become idle */
|
||
|
|
for (i = 0; i < 300; i++) {
|
||
|
|
if ((mt76_rr(dev, MT_MAC_STATUS) &
|
||
|
|
(MT_MAC_STATUS_RX | MT_MAC_STATUS_TX)) ||
|
||
|
|
mt76_rr(dev, MT_BBP(IBI, 12))) {
|
||
|
|
udelay(1);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
stopped = true;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (force && !stopped) {
|
||
|
|
mt76_set(dev, MT_BBP(CORE, 4), BIT(1));
|
||
|
|
mt76_clear(dev, MT_BBP(CORE, 4), BIT(1));
|
||
|
|
|
||
|
|
mt76_set(dev, MT_BBP(CORE, 4), BIT(0));
|
||
|
|
mt76_clear(dev, MT_BBP(CORE, 4), BIT(0));
|
||
|
|
}
|
||
|
|
|
||
|
|
mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(mt76x2_mac_stop);
|