2 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
3 * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 void mt76x2_mac_stop(struct mt76x02_dev *dev, bool force)
26 mt76_wr(dev, MT_MAC_SYS_CTRL, 0);
28 rts_cfg = mt76_rr(dev, MT_TX_RTS_CFG);
29 mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg & ~MT_TX_RTS_CFG_RETRY_LIMIT);
31 /* Wait for MAC to become idle */
32 for (i = 0; i < 300; i++) {
33 if ((mt76_rr(dev, MT_MAC_STATUS) &
34 (MT_MAC_STATUS_RX | MT_MAC_STATUS_TX)) ||
35 mt76_rr(dev, MT_BBP(IBI, 12))) {
44 if (force && !stopped) {
45 mt76_set(dev, MT_BBP(CORE, 4), BIT(1));
46 mt76_clear(dev, MT_BBP(CORE, 4), BIT(1));
48 mt76_set(dev, MT_BBP(CORE, 4), BIT(0));
49 mt76_clear(dev, MT_BBP(CORE, 4), BIT(0));
52 mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg);
54 EXPORT_SYMBOL_GPL(mt76x2_mac_stop);