Introduce support for mt7663u 802.11ac 2x2:2 chipset to mt7615 driver.
Main difference respect to pcie code base is the usb code needs to
configure wtbl from non-atomic context
Co-developed-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
drivers/net/wireless/mediatek/mt76/mt76.h | 1 +
.../net/wireless/mediatek/mt76/mt7615/Kconfig | 11 +
.../wireless/mediatek/mt76/mt7615/Makefile | 3 +
.../net/wireless/mediatek/mt76/mt7615/mac.c | 28 ++
.../net/wireless/mediatek/mt76/mt7615/mac.h | 5 +-
.../net/wireless/mediatek/mt76/mt7615/main.c | 34 ++
.../net/wireless/mediatek/mt76/mt7615/mcu.c | 3 +-
.../net/wireless/mediatek/mt76/mt7615/mcu.h | 5 +
.../wireless/mediatek/mt76/mt7615/mt7615.h | 10 +
.../net/wireless/mediatek/mt76/mt7615/regs.h | 26 ++
.../net/wireless/mediatek/mt76/mt7615/usb.c | 396 ++++++++++++++++++
.../wireless/mediatek/mt76/mt7615/usb_init.c | 144 +++++++
.../wireless/mediatek/mt76/mt7615/usb_mcu.c | 93 ++++
13 files changed, 756 insertions(+), 3 deletions(-)
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7615/usb.c
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7615/usb_init.c
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7615/usb_mcu.c
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index e31d98a4f88f..577465c01827 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -285,6 +285,7 @@ enum {
MT76_MCU_RESET,
MT76_REMOVED,
MT76_READING_STATS,
+ MT76_STATE_POWER_OFF,
};
struct mt76_hw_cap {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/Kconfig b/drivers/net/wireless/mediatek/mt76/mt7615/Kconfig
index 16385767d8b9..a84317fb856f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/Kconfig
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/Kconfig
@@ -27,3 +27,14 @@ config MT7622_WMAC
This adds support for the built-in WMAC on MT7622 SoC devices
which has the same feature set as a MT7615, but limited to
2.4 GHz only.
+
+config MT7663U
+ tristate "MediaTek MT7663U (USB) support"
+ select MT76_USB
+ select MT7615_COMMON
+ depends on MAC80211
+ depends on USB
+ help
+ This adds support for MT7663U 802.11ax 2x2:2 wireless devices.
+
+ To compile this driver as a module, choose M here.
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/Makefile b/drivers/net/wireless/mediatek/mt76/mt7615/Makefile
index 2a7937b4394f..99f353b8b9aa 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/Makefile
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/Makefile
@@ -2,6 +2,7 @@
obj-$(CONFIG_MT7615_COMMON) += mt7615-common.o
obj-$(CONFIG_MT7615E) += mt7615e.o
+obj-$(CONFIG_MT7663U) += mt7663u.o
CFLAGS_trace.o := -I$(src)
@@ -10,3 +11,5 @@ mt7615-common-y := main.o init.o mcu.o eeprom.o mac.o \
mt7615e-y := pci.o pci_init.o dma.o pci_mac.o mmio.o
mt7615e-$(CONFIG_MT7622_WMAC) += soc.o
+
+mt7663u-y := usb.o usb_mcu.o usb_init.o
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index 7e8363397fef..c792b2d332da 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -871,6 +871,29 @@ mt7615_mac_update_rate_desc(struct mt7615_phy *phy, struct mt7615_sta *sta,
rd->bw = bw;
}
+static int
+mt7615_mac_queue_rate_update(struct mt7615_phy *phy, struct mt7615_sta *sta,
+ struct ieee80211_tx_rate *probe_rate,
+ struct ieee80211_tx_rate *rates)
+{
+ struct mt7615_dev *dev = phy->dev;
+ struct mt7615_wtbl_desc *wd;
+
+ wd = kzalloc(sizeof(*wd), GFP_ATOMIC);
+ if (!wd)
+ return -ENOMEM;
+
+ wd->type = MT7615_WTBL_RATE_DESC;
+ wd->sta = sta;
+
+ mt7615_mac_update_rate_desc(phy, sta, probe_rate, rates,
+ &wd->rate);
+ list_add_tail(&wd->node, &dev->wd_head);
+ queue_work(dev->mt76.usb.wq, &dev->wtbl_work);
+
+ return 0;
+}
+
void mt7615_mac_set_rates(struct mt7615_phy *phy, struct mt7615_sta *sta,
struct ieee80211_tx_rate *probe_rate,
struct ieee80211_tx_rate *rates)
@@ -880,6 +903,11 @@ void mt7615_mac_set_rates(struct mt7615_phy *phy, struct mt7615_sta *sta,
struct mt7615_rate_desc rd;
u32 w5, w27, addr;
+ if (mt76_is_usb(&dev->mt76)) {
+ mt7615_mac_queue_rate_update(phy, sta, probe_rate, rates);
+ return;
+ }
+
if (!mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000))
return;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.h b/drivers/net/wireless/mediatek/mt76/mt7615/mac.h
index 8ee57d220d71..f0d4b29a52a2 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.h
@@ -165,9 +165,12 @@ enum tx_phy_bandwidth {
#define MT_CT_INFO_NONE_CIPHER_FRAME BIT(3)
#define MT_CT_INFO_HSR2_TX BIT(4)
-#define MT_USB_TXD_SIZE (MT_TXD_SIZE + 8 * 4)
#define MT_TXD_SIZE (8 * 4)
+#define MT_USB_TXD_SIZE (MT_TXD_SIZE + 8 * 4)
+#define MT_USB_HDR_SIZE 4
+#define MT_USB_TAIL_SIZE 4
+
#define MT_TXD0_P_IDX BIT(31)
#define MT_TXD0_Q_IDX GENMASK(30, 26)
#define MT_TXD0_UDP_TCP_SUM BIT(24)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index ca3d9aa770a0..423b6d46893d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -280,6 +280,37 @@ static int mt7615_set_channel(struct mt7615_phy *phy)
return ret;
}
+static int
+mt7615_queue_key_update(struct mt7615_dev *dev, enum set_key_cmd cmd,
+ struct mt7615_sta *msta,
+ struct ieee80211_key_conf *key)
+{
+ struct mt7615_wtbl_desc *wd;
+
+ wd = kzalloc(sizeof(*wd), GFP_KERNEL);
+ if (!wd)
+ return -ENOMEM;
+
+ wd->type = MT7615_WTBL_KEY_DESC;
+ wd->sta = msta;
+
+ wd->key.key = kzalloc(key->keylen, GFP_KERNEL);
+ if (!wd->key.key) {
+ kfree(wd);
+ return -ENOMEM;
+ }
+ memcpy(wd->key.key, key->key, key->keylen);
+ wd->key.cipher = key->cipher;
+ wd->key.keyidx = key->keyidx;
+ wd->key.keylen = key->keylen;
+ wd->key.cmd = cmd;
+
+ list_add_tail(&wd->node, &dev->wd_head);
+ queue_work(dev->mt76.usb.wq, &dev->wtbl_work);
+
+ return 0;
+}
+
static int mt7615_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
struct ieee80211_vif *vif, struct ieee80211_sta *sta,
struct ieee80211_key_conf *key)
@@ -328,6 +359,9 @@ static int mt7615_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
mt76_wcid_key_setup(&dev->mt76, wcid,
cmd == SET_KEY ? key : NULL);
+ if (mt76_is_usb(&dev->mt76))
+ return mt7615_queue_key_update(dev, cmd, msta, key);
+
return mt7615_mac_wtbl_set_key(dev, wcid, key, cmd);
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
index 73d9e6c368a1..bc7b55e41337 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
@@ -1598,8 +1598,7 @@ static int mt7615_mcu_send_firmware(struct mt7615_dev *dev, const void *data,
int ret = 0, cur_len;
while (len > 0) {
- cur_len = min_t(int, 4096 - sizeof(struct mt7615_mcu_txd),
- len);
+ cur_len = min_t(int, 4096 - dev->mt76.mcu_ops->headroom, len);
ret = __mt76_mcu_send_msg(&dev->mt76, MCU_CMD_FW_SCATTER,
data, cur_len, false);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
index 983625fb72ee..dff3f3632faf 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
@@ -449,6 +449,11 @@ enum {
FW_STATE_CR4_RDY = 7
};
+enum {
+ FW_STATE_PWR_ON = 1,
+ FW_STATE_N9_RDY = 2,
+};
+
#define STA_TYPE_STA BIT(0)
#define STA_TYPE_AP BIT(1)
#define STA_TYPE_ADHOC BIT(2)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
index 454cdd92e7ae..be02ead3750e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
@@ -265,6 +265,9 @@ struct mt7615_dev {
struct idr token;
u8 fw_ver;
+
+ struct work_struct wtbl_work;
+ struct list_head wd_head;
};
enum {
@@ -507,6 +510,13 @@ int mt7615_mcu_apply_tx_dpd(struct mt7615_phy *phy);
int mt7615_dfs_init_radar_detector(struct mt7615_phy *phy);
int mt7615_init_debugfs(struct mt7615_dev *dev);
+int mt7615_mcu_wait_response(struct mt7615_dev *dev, int cmd, int seq);
+
int __mt7663_load_firmware(struct mt7615_dev *dev);
+/* usb */
+void mt7663u_wtbl_work(struct work_struct *work);
+int mt7663u_mcu_init(struct mt7615_dev *dev);
+int mt7663u_register_device(struct mt7615_dev *dev);
+
#endif
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h
index a3333f382350..370e03432e81 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h
@@ -43,6 +43,7 @@ enum mt7615_reg_base {
#define MT_TOP_MISC2_FW_STATE GENMASK(2, 0)
#define MT7663_TOP_MISC2_FW_STATE GENMASK(3, 1)
+#define MT_TOP_MISC2_FW_PWR_ON BIT(1)
#define MT_MCU_BASE 0x2000
#define MT_MCU(ofs) (MT_MCU_BASE + (ofs))
@@ -58,6 +59,8 @@ enum mt7615_reg_base {
#define MT_PCIE_REMAP_BASE_2 ((dev)->reg_map[MT_PCIE_REMAP_BASE2])
#define MT_HIF(ofs) ((dev)->reg_map[MT_HIF_BASE] + (ofs))
+#define MT_HIF_RST MT_HIF(0x100)
+#define MT_HIF_LOGIC_RST_N BIT(4)
#define MT7663_MCU_PCIE_REMAP_2_OFFSET GENMASK(15, 0)
#define MT7663_MCU_PCIE_REMAP_2_BASE GENMASK(31, 16)
@@ -483,4 +486,27 @@ enum mt7615_reg_base {
#define MT_INFRACFG_MISC 0x700
#define MT_INFRACFG_MISC_AP2CONN_WAKE BIT(1)
+#define MT_UMAC_BASE 0x7c000000
+#define MT_UMAC(ofs) (MT_UMAC_BASE + (ofs))
+#define MT_UDMA_TX_QSEL MT_UMAC(0x008)
+#define MT_FW_DL_EN BIT(3)
+
+#define MT_UDMA_WLCFG_1 MT_UMAC(0x00c)
+#define MT_WL_RX_AGG_PKT_LMT GENMASK(7, 0)
+#define MT_WL_TX_TMOUT_LMT GENMASK(27, 8)
+
+#define MT_UDMA_WLCFG_0 MT_UMAC(0x18)
+#define MT_WL_RX_AGG_TO GENMASK(7, 0)
+#define MT_WL_RX_AGG_LMT GENMASK(15, 8)
+#define MT_WL_TX_TMOUT_FUNC_EN BIT(16)
+#define MT_WL_TX_DPH_CHK_EN BIT(17)
+#define MT_WL_RX_MPSZ_PAD0 BIT(18)
+#define MT_WL_RX_FLUSH BIT(19)
+#define MT_TICK_1US_EN BIT(20)
+#define MT_WL_RX_AGG_EN BIT(21)
+#define MT_WL_RX_EN BIT(22)
+#define MT_WL_TX_EN BIT(23)
+#define MT_WL_RX_BUSY BIT(30)
+#define MT_WL_TX_BUSY BIT(31)
+
#endif
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb.c
new file mode 100644
index 000000000000..0a8b0d8ac368
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb.c
@@ -0,0 +1,396 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2019 MediaTek Inc.
+ *
+ * Author: Felix Fietkau <nbd@xxxxxxxx>
+ * Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
+ * Sean Wang <sean.wang@xxxxxxxxxxxx>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+
+#include "mt7615.h"
+#include "mac.h"
+#include "mcu.h"
+#include "regs.h"
+
+static const u32 mt7663u_reg_map[] = {
+ [MT_TOP_CFG_BASE] = 0x80020000,
+ [MT_HW_BASE] = 0x80000000,
+ [MT_DMA_SHDL_BASE] = 0x5000a000,
+ [MT_HIF_BASE] = 0x50000000,
+ [MT_CSR_BASE] = 0x40000000,
+ [MT_EFUSE_ADDR_BASE] = 0x78011000,
+ [MT_TOP_MISC_BASE] = 0x81020000,
+ [MT_PHY_BASE] = 0x82070000,
+ [MT_WTBL_BASE_ADDR] = 0x820e0000,
+ [MT_CFG_BASE] = 0x820f0000,
+ [MT_AGG_BASE] = 0x820f2000,
+ [MT_ARB_BASE] = 0x820f3000,
+ [MT_TMAC_BASE] = 0x820f4000,
+ [MT_RMAC_BASE] = 0x820f5000,
+ [MT_DMA_BASE] = 0x820f7000,
+ [MT_WTBL_BASE_ON] = 0x820f9000,
+ [MT_WTBL_BASE_OFF] = 0x820f9800,
+ [MT_LPON_BASE] = 0x820fb000,
+ [MT_MIB_BASE] = 0x820fd000,
+};
+
+static const struct usb_device_id mt7615_device_table[] = {
+ { USB_DEVICE_AND_INTERFACE_INFO(0x0e8d, 0x7663, 0xff, 0xff, 0xff)},
+ { },
+};
+
+static void mt7663u_stop(struct ieee80211_hw *hw)
+{
+ struct mt7615_phy *phy = mt7615_hw_phy(hw);
+ struct mt7615_dev *dev = hw->priv;
+
+ clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
+ cancel_delayed_work_sync(&phy->scan_work);
+ mt76u_stop_tx(&dev->mt76);
+ cancel_delayed_work_sync(&dev->mt76.mac_work);
+}
+
+static void mt7663u_cleanup(struct mt7615_dev *dev)
+{
+ clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
+ mt76u_queues_deinit(&dev->mt76);
+}
+
+static void
+mt7663u_mac_write_txwi(struct mt7615_dev *dev, struct mt76_wcid *wcid,
+ enum mt76_txq_id qid, struct ieee80211_sta *sta,
+ struct sk_buff *skb)
+{
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ __le32 *txwi;
+ int pid;
+
+ if (!wcid)
+ wcid = &dev->mt76.global_wcid;
+
+ pid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb);
+
+ txwi = (__le32 *)(skb->data - MT_USB_TXD_SIZE);
+ memset(txwi, 0, MT_USB_TXD_SIZE);
+ mt7615_mac_write_txwi(dev, txwi, skb, wcid, sta,
+ pid, info->control.hw_key, false);
+ skb_push(skb, MT_USB_TXD_SIZE);
+}
+
+static int
+__mt7663u_mac_set_rates(struct mt7615_dev *dev,
+ struct mt7615_wtbl_desc *wd)
+{
+ struct mt7615_rate_desc *rate = &wd->rate;
+ struct mt7615_sta *sta = wd->sta;
+ u32 w5, w27, addr, val;
+
+ lockdep_assert_held(&dev->mt76.mutex);
+
+ if (!sta)
+ return -EINVAL;
+
+ if (!mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000))
+ return -ETIMEDOUT;
+
+ addr = mt7615_mac_wtbl_addr(dev, sta->wcid.idx);
+
+ w27 = mt76_rr(dev, addr + 27 * 4);
+ w27 &= ~MT_WTBL_W27_CC_BW_SEL;
+ w27 |= FIELD_PREP(MT_WTBL_W27_CC_BW_SEL, rate->bw);
+
+ w5 = mt76_rr(dev, addr + 5 * 4);
+ w5 &= ~(MT_WTBL_W5_BW_CAP | MT_WTBL_W5_CHANGE_BW_RATE |
+ MT_WTBL_W5_MPDU_OK_COUNT |
+ MT_WTBL_W5_MPDU_FAIL_COUNT |
+ MT_WTBL_W5_RATE_IDX);
+ w5 |= FIELD_PREP(MT_WTBL_W5_BW_CAP, rate->bw) |
+ FIELD_PREP(MT_WTBL_W5_CHANGE_BW_RATE,
+ rate->bw_idx ? rate->bw_idx - 1 : 7);
+
+ mt76_wr(dev, MT_WTBL_RIUCR0, w5);
+
+ mt76_wr(dev, MT_WTBL_RIUCR1,
+ FIELD_PREP(MT_WTBL_RIUCR1_RATE0, rate->probe_val) |
+ FIELD_PREP(MT_WTBL_RIUCR1_RATE1, rate->val[0]) |
+ FIELD_PREP(MT_WTBL_RIUCR1_RATE2_LO, rate->val[1]));
+
+ mt76_wr(dev, MT_WTBL_RIUCR2,
+ FIELD_PREP(MT_WTBL_RIUCR2_RATE2_HI, rate->val[1] >> 8) |
+ FIELD_PREP(MT_WTBL_RIUCR2_RATE3, rate->val[1]) |
+ FIELD_PREP(MT_WTBL_RIUCR2_RATE4, rate->val[2]) |
+ FIELD_PREP(MT_WTBL_RIUCR2_RATE5_LO, rate->val[2]));
+
+ mt76_wr(dev, MT_WTBL_RIUCR3,
+ FIELD_PREP(MT_WTBL_RIUCR3_RATE5_HI, rate->val[2] >> 4) |
+ FIELD_PREP(MT_WTBL_RIUCR3_RATE6, rate->val[3]) |
+ FIELD_PREP(MT_WTBL_RIUCR3_RATE7, rate->val[3]));
+
+ mt76_wr(dev, MT_WTBL_UPDATE,
+ FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, sta->wcid.idx) |
+ MT_WTBL_UPDATE_RATE_UPDATE |
+ MT_WTBL_UPDATE_TX_COUNT_CLEAR);
+
+ mt76_wr(dev, addr + 27 * 4, w27);
+
+ mt76_set(dev, MT_LPON_T0CR, MT_LPON_T0CR_MODE); /* TSF read */
+ val = mt76_rr(dev, MT_LPON_UTTR0);
+ sta->rate_set_tsf = (val & ~BIT(0)) | rate->rateset;
+
+ if (!(sta->wcid.tx_info & MT_WCID_TX_INFO_SET))
+ mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000);
+
+ sta->rate_count = 2 * MT7615_RATE_RETRY * sta->n_rates;
+ sta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
+
+ return 0;
+}
+
+static int
+__mt7663u_mac_set_key(struct mt7615_dev *dev,
+ struct mt7615_wtbl_desc *wd)
+{
+ struct mt7615_key_desc *key = &wd->key;
+ struct mt7615_sta *sta = wd->sta;
+ enum mt7615_cipher_type cipher;
+ struct mt76_wcid *wcid;
+ int err;
+
+ lockdep_assert_held(&dev->mt76.mutex);
+
+ if (!sta)
+ return -EINVAL;
+
+ cipher = mt7615_mac_get_cipher(key->cipher);
+ if (cipher == MT_CIPHER_NONE)
+ return -EOPNOTSUPP;
+
+ wcid = &wd->sta->wcid;
+
+ mt7615_mac_wtbl_update_cipher(dev, wcid, cipher, key->cmd);
+ err = mt7615_mac_wtbl_update_key(dev, wcid, key->key, key->keylen,
+ cipher, key->cmd);
+ if (err < 0)
+ return err;
+
+ err = mt7615_mac_wtbl_update_pk(dev, wcid, cipher, key->keyidx,
+ key->cmd);
+ if (err < 0)
+ return err;
+
+ if (key->cmd == SET_KEY)
+ wcid->cipher |= BIT(cipher);
+ else
+ wcid->cipher &= ~BIT(cipher);
+
+ return 0;
+}
+
+void mt7663u_wtbl_work(struct work_struct *work)
+{
+ struct mt7615_wtbl_desc *wd, *wd_next;
+ struct mt7615_dev *dev;
+
+ dev = (struct mt7615_dev *)container_of(work, struct mt7615_dev,
+ wtbl_work);
+
+ list_for_each_entry_safe(wd, wd_next, &dev->wd_head, node) {
+ spin_lock_bh(&dev->mt76.lock);
+ list_del(&wd->node);
+ spin_unlock_bh(&dev->mt76.lock);
+
+ mutex_lock(&dev->mt76.mutex);
+ switch (wd->type) {
+ case MT7615_WTBL_RATE_DESC:
+ __mt7663u_mac_set_rates(dev, wd);
+ break;
+ case MT7615_WTBL_KEY_DESC:
+ __mt7663u_mac_set_key(dev, wd);
+ break;
+ }
+ mutex_unlock(&dev->mt76.mutex);
+
+ kfree(wd);
+ }
+}
+
+static void
+mt7663u_tx_complete_skb(struct mt76_dev *mdev, enum mt76_txq_id qid,
+ struct mt76_queue_entry *e)
+{
+ skb_pull(e->skb, MT_USB_HDR_SIZE + MT_USB_TXD_SIZE);
+ mt76_tx_complete_skb(mdev, e->skb);
+}
+
+static int
+mt7663u_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
+ enum mt76_txq_id qid, struct mt76_wcid *wcid,
+ struct ieee80211_sta *sta,
+ struct mt76_tx_info *tx_info)
+{
+ struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
+
+ if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) {
+ struct mt7615_sta *msta;
+
+ msta = container_of(wcid, struct mt7615_sta, wcid);
+ spin_lock_bh(&dev->mt76.lock);
+ mt7615_mac_set_rates(&dev->phy, msta, &info->control.rates[0],
+ msta->rates);
+ msta->rate_probe = true;
+ spin_unlock_bh(&dev->mt76.lock);
+ }
+ mt7663u_mac_write_txwi(dev, wcid, qid, sta, tx_info->skb);
+
+ return mt76u_skb_dma_info(tx_info->skb, tx_info->skb->len);
+}
+
+static int mt7663u_probe(struct usb_interface *usb_intf,
+ const struct usb_device_id *id)
+{
+ static const struct mt76_driver_ops drv_ops = {
+ .txwi_size = MT_USB_TXD_SIZE,
+ .drv_flags = MT_DRV_RX_DMA_HDR,
+ .tx_prepare_skb = mt7663u_tx_prepare_skb,
+ .tx_complete_skb = mt7663u_tx_complete_skb,
+ .rx_skb = mt7615_queue_rx_skb,
+ .sta_ps = mt7615_sta_ps,
+ .sta_add = mt7615_mac_sta_add,
+ .sta_remove = mt7615_mac_sta_remove,
+ .update_survey = mt7615_update_channel,
+ };
+ struct usb_device *udev = interface_to_usbdev(usb_intf);
+ struct ieee80211_ops *ops;
+ struct mt7615_dev *dev;
+ struct mt76_dev *mdev;
+ int ret;
+
+ ops = devm_kmemdup(&usb_intf->dev, &mt7615_ops, sizeof(mt7615_ops),
+ GFP_KERNEL);
+ if (!ops)
+ return -ENOMEM;
+
+ ops->stop = mt7663u_stop;
+
+ mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), ops, &drv_ops);
+ if (!mdev)
+ return -ENOMEM;
+
+ dev = container_of(mdev, struct mt7615_dev, mt76);
+ udev = usb_get_dev(udev);
+ usb_reset_device(udev);
+
+ usb_set_intfdata(usb_intf, dev);
+
+ dev->reg_map = mt7663u_reg_map;
+ dev->ops = ops;
+ ret = mt76u_init(mdev, usb_intf, true);
+ if (ret < 0)
+ goto error;
+
+ mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |
+ (mt76_rr(dev, MT_HW_REV) & 0xff);
+ dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
+
+ if (mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON,
+ FW_STATE_PWR_ON << 1, 500)) {
+ dev_dbg(dev->mt76.dev, "Usb device already powered on\n");
+ set_bit(MT76_STATE_POWER_OFF, &dev->mphy.state);
+ goto alloc_queues;
+ }
+
+ ret = mt76u_vendor_request(&dev->mt76, MT_VEND_POWER_ON,
+ USB_DIR_OUT | USB_TYPE_VENDOR,
+ 0x0, 0x1, NULL, 0);
+ if (ret)
+ goto error;
+
+ if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON,
+ FW_STATE_PWR_ON << 1, 500)) {
+ dev_err(dev->mt76.dev, "Timeout for power on\n");
+ return -EIO;
+ }
+
+alloc_queues:
+ ret = mt76u_alloc_mcu_queue(&dev->mt76);
+ if (ret)
+ goto error;
+
+ ret = mt76u_alloc_queues(&dev->mt76);
+ if (ret)
+ goto error;
+
+ ret = mt7663u_register_device(dev);
+ if (ret)
+ goto error_freeq;
+
+ return 0;
+
+error_freeq:
+ mt76u_queues_deinit(&dev->mt76);
+error:
+ mt76u_deinit(&dev->mt76);
+ usb_set_intfdata(usb_intf, NULL);
+ usb_put_dev(interface_to_usbdev(usb_intf));
+
+ ieee80211_free_hw(mdev->hw);
+
+ return ret;
+}
+
+static void mt7663u_disconnect(struct usb_interface *usb_intf)
+{
+ struct mt7615_dev *dev = usb_get_intfdata(usb_intf);
+
+ if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state))
+ return;
+
+ ieee80211_unregister_hw(dev->mt76.hw);
+ mt7663u_cleanup(dev);
+
+ usb_set_intfdata(usb_intf, NULL);
+ usb_put_dev(interface_to_usbdev(usb_intf));
+
+ mt76u_deinit(&dev->mt76);
+ ieee80211_free_hw(dev->mt76.hw);
+}
+
+static int __maybe_unused
+mt7663u_suspend(struct usb_interface *intf,
+ pm_message_t state)
+{
+ return 0;
+}
+
+static int __maybe_unused
+mt7663u_resume(struct usb_interface *intf)
+{
+ return 0;
+}
+
+MODULE_DEVICE_TABLE(usb, mt7615_device_table);
+MODULE_FIRMWARE(MT7663_FIRMWARE_N9);
+MODULE_FIRMWARE(MT7663_ROM_PATCH);
+
+static struct usb_driver mt7663u_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = mt7615_device_table,
+ .probe = mt7663u_probe,
+ .disconnect = mt7663u_disconnect,
+#ifdef CONFIG_PM
+ .suspend = mt7663u_suspend,
+ .resume = mt7663u_resume,
+ .reset_resume = mt7663u_resume,
+#endif /* CONFIG_PM */
+ .soft_unbind = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+module_usb_driver(mt7663u_driver);
+
+MODULE_AUTHOR("Sean Wang <sean.wang@xxxxxxxxxxxx>");
+MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@xxxxxxxxxx>");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb_init.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb_init.c
new file mode 100644
index 000000000000..a05f0eda21dd
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb_init.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2019 MediaTek Inc.
+ *
+ * Author: Felix Fietkau <nbd@xxxxxxxx>
+ * Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
+ * Sean Wang <sean.wang@xxxxxxxxxxxx>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "mt7615.h"
+#include "mac.h"
+#include "regs.h"
+
+static int mt7663u_dma_sched_init(struct mt7615_dev *dev)
+{
+ int i;
+
+ mt76_rmw(dev, MT_DMA_SHDL(MT_DMASHDL_PKT_MAX_SIZE),
+ MT_DMASHDL_PKT_MAX_SIZE_PLE | MT_DMASHDL_PKT_MAX_SIZE_PSE,
+ FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PLE, 1) |
+ FIELD_PREP(MT_DMASHDL_PKT_MAX_SIZE_PSE, 8));
+
+ /* disable refill group 5 - group 15 and raise group 2
+ * and 3 as high priority.
+ */
+ mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_REFILL), 0xffe00006);
+ mt76_clear(dev, MT_DMA_SHDL(MT_DMASHDL_PAGE), BIT(16));
+
+ for (i = 0; i < 5; i++)
+ mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_GROUP_QUOTA(i)),
+ FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MIN, 0x3) |
+ FIELD_PREP(MT_DMASHDL_GROUP_QUOTA_MAX, 0x1ff));
+
+ mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(0)), 0x42104210);
+ mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(1)), 0x42104210);
+
+ mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_Q_MAP(2)), 0x4444);
+
+ /* group pririority from high to low:
+ * 15 (cmd groups) > 4 > 3 > 2 > 1 > 0.
+ */
+ mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_SCHED_SET0), 0x6501234f);
+ mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_SCHED_SET1), 0xedcba987);
+ mt76_wr(dev, MT_DMA_SHDL(MT_DMASHDL_OPTIONAL), 0x7004801c);
+
+ mt76_wr(dev, MT_UDMA_WLCFG_1,
+ FIELD_PREP(MT_WL_TX_TMOUT_LMT, 80000) |
+ FIELD_PREP(MT_WL_RX_AGG_PKT_LMT, 1));
+
+ /* setup UDMA Rx Flush */
+ mt76_clear(dev, MT_UDMA_WLCFG_0, MT_WL_RX_FLUSH);
+ /* hif reset */
+ mt76_set(dev, MT_HIF_RST, MT_HIF_LOGIC_RST_N);
+
+ mt76_set(dev, MT_UDMA_WLCFG_0,
+ MT_WL_RX_AGG_EN | MT_WL_RX_EN | MT_WL_TX_EN |
+ MT_WL_RX_MPSZ_PAD0 | MT_TICK_1US_EN |
+ MT_WL_TX_TMOUT_FUNC_EN);
+ mt76_rmw(dev, MT_UDMA_WLCFG_0, MT_WL_RX_AGG_LMT | MT_WL_RX_AGG_TO,
+ FIELD_PREP(MT_WL_RX_AGG_LMT, 32) |
+ FIELD_PREP(MT_WL_RX_AGG_TO, 100));
+
+ return 0;
+}
+
+static int mt7663u_init_hardware(struct mt7615_dev *dev)
+{
+ int ret, idx;
+
+ ret = mt7615_eeprom_init(dev, MT_EFUSE_BASE);
+ if (ret < 0)
+ return ret;
+
+ ret = mt7663u_dma_sched_init(dev);
+ if (ret)
+ return ret;
+
+ set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
+
+ /* Beacon and mgmt frames should occupy wcid 0 */
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1);
+ if (idx)
+ return -ENOSPC;
+
+ dev->mt76.global_wcid.idx = idx;
+ dev->mt76.global_wcid.hw_key_idx = -1;
+ rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid);
+
+ return 0;
+}
+
+static void mt7663u_init_work(struct work_struct *work)
+{
+ struct mt7615_dev *dev;
+
+ dev = container_of(work, struct mt7615_dev, mcu_work);
+ if (mt7663u_mcu_init(dev))
+ return;
+
+ mt7615_mcu_set_eeprom(dev);
+ mt7615_mac_init(dev);
+ mt7615_phy_init(dev);
+ mt7615_mcu_del_wtbl_all(dev);
+}
+
+int mt7663u_register_device(struct mt7615_dev *dev)
+{
+ struct ieee80211_hw *hw = mt76_hw(dev);
+ int err;
+
+ INIT_WORK(&dev->wtbl_work, mt7663u_wtbl_work);
+ INIT_WORK(&dev->mcu_work, mt7663u_init_work);
+ INIT_LIST_HEAD(&dev->wd_head);
+ mt7615_init_device(dev);
+
+ err = mt7663u_init_hardware(dev);
+ if (err)
+ return err;
+
+ hw->extra_tx_headroom += MT_USB_HDR_SIZE + MT_USB_TXD_SIZE;
+ /* check hw sg support in order to enable AMSDU */
+ hw->max_tx_fragments = dev->mt76.usb.sg_en ? MT_HW_TXP_MAX_BUF_NUM : 1;
+
+ err = mt76_register_device(&dev->mt76, true, mt7615_rates,
+ ARRAY_SIZE(mt7615_rates));
+ if (err < 0)
+ return err;
+
+ if (!dev->mt76.usb.sg_en) {
+ struct ieee80211_sta_vht_cap *vht_cap;
+
+ /* decrease max A-MSDU size if SG is not supported */
+ vht_cap = &dev->mphy.sband_5g.sband.vht_cap;
+ vht_cap->cap &= ~IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
+ }
+
+ ieee80211_queue_work(hw, &dev->mcu_work);
+ mt7615_init_txpower(dev, &dev->mphy.sband_2g.sband);
+ mt7615_init_txpower(dev, &dev->mphy.sband_5g.sband);
+
+ return mt7615_init_debugfs(dev);
+}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb_mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb_mcu.c
new file mode 100644
index 000000000000..cd709fd617db
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb_mcu.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2019 MediaTek Inc.
+ *
+ * Author: Felix Fietkau <nbd@xxxxxxxx>
+ * Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
+ * Sean Wang <sean.wang@xxxxxxxxxxxx>
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "mt7615.h"
+#include "mac.h"
+#include "mcu.h"
+#include "regs.h"
+
+static int
+mt7663u_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
+ int cmd, bool wait_resp)
+{
+ struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
+ int ret, seq, ep;
+
+ mutex_lock(&mdev->mcu.mutex);
+
+ mt7615_mcu_fill_msg(dev, skb, cmd, &seq);
+ if (cmd != MCU_CMD_FW_SCATTER)
+ ep = MT_EP_OUT_INBAND_CMD;
+ else
+ ep = MT_EP_OUT_AC_BE;
+
+ ret = mt76u_skb_dma_info(skb, skb->len);
+ if (ret < 0)
+ goto out;
+
+ ret = mt76u_bulk_msg(&dev->mt76, skb->data, skb->len, NULL,
+ 1000, ep);
+ dev_kfree_skb(skb);
+ if (ret < 0)
+ goto out;
+
+ if (wait_resp)
+ ret = mt7615_mcu_wait_response(dev, cmd, seq);
+
+out:
+ mutex_unlock(&mdev->mcu.mutex);
+
+ return ret;
+}
+
+int mt7663u_mcu_init(struct mt7615_dev *dev)
+{
+ static const struct mt76_mcu_ops mt7663u_mcu_ops = {
+ .headroom = MT_USB_HDR_SIZE + sizeof(struct mt7615_mcu_txd),
+ .tailroom = MT_USB_TAIL_SIZE,
+ .mcu_skb_send_msg = mt7663u_mcu_send_message,
+ .mcu_send_msg = mt7615_mcu_msg_send,
+ .mcu_restart = mt7615_mcu_restart,
+ };
+ int ret;
+
+ dev->mt76.mcu_ops = &mt7663u_mcu_ops,
+
+ mt76_set(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);
+
+ if (test_and_clear_bit(MT76_STATE_POWER_OFF, &dev->mphy.state)) {
+ mt7615_mcu_restart(&dev->mt76);
+ if (!mt76_poll_msec(dev, MT_CONN_ON_MISC,
+ MT_TOP_MISC2_FW_PWR_ON, 0, 500))
+ return -EIO;
+
+ ret = mt76u_vendor_request(&dev->mt76, MT_VEND_POWER_ON,
+ USB_DIR_OUT | USB_TYPE_VENDOR,
+ 0x0, 0x1, NULL, 0);
+ if (ret)
+ return ret;
+
+ if (!mt76_poll_msec(dev, MT_CONN_ON_MISC,
+ MT_TOP_MISC2_FW_PWR_ON,
+ FW_STATE_PWR_ON << 1, 500)) {
+ dev_err(dev->mt76.dev, "Timeout for power on\n");
+ return -EIO;
+ }
+ }
+
+ ret = __mt7663_load_firmware(dev);
+ if (ret)
+ return ret;
+
+ mt76_clear(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);
+ set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
+
+ return 0;
+}
--
2.25.2
