[PATCH v2 03/16] mt76: mt7921: refactor mcu.c to be bus independent

sean.wang
2021-09-18T00:09:52Z

This is a preliminary patch to introduce mt7921s support.

Make mcu.c reusable between mt7921s and mt7921e

Tested-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
.../wireless/mediatek/mt76/mt7921/Makefile | 3 +-
.../net/wireless/mediatek/mt76/mt7921/init.c | 1 +
.../net/wireless/mediatek/mt76/mt7921/mac.c | 5 +-
.../net/wireless/mediatek/mt76/mt7921/mcu.c | 94 ++----------------
.../wireless/mediatek/mt76/mt7921/mt7921.h | 20 +++-
.../net/wireless/mediatek/mt76/mt7921/pci.c | 3 +
.../wireless/mediatek/mt76/mt7921/pci_mac.c | 2 +
.../wireless/mediatek/mt76/mt7921/pci_mcu.c | 97 +++++++++++++++++++
8 files changed, 130 insertions(+), 95 deletions(-)
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7921/pci_mcu.c

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/Makefile b/drivers/net/wireless/mediatek/mt76/mt7921/Makefile
index 554202358470..4cb0b000cfe1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/Makefile
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/Makefile
@@ -4,5 +4,6 @@ obj-$(CONFIG_MT7921E) += mt7921e.o

CFLAGS_trace.o := -I$(src)

-mt7921e-y := pci.o pci_mac.o mac.o mcu.o dma.o eeprom.o main.o init.o debugfs.o trace.o
+mt7921e-y := pci.o pci_mac.o pci_mcu.o mac.o mcu.o dma.o eeprom.o main.o \
+ init.o debugfs.o trace.o
mt7921e-$(CONFIG_NL80211_TESTMODE) += testmode.o
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
index 97b931ea07c1..7c7a26102e11 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
@@ -304,6 +304,7 @@ void mt7921_unregister_device(struct mt7921_dev *dev)
mt7921_tx_token_put(dev);
mt7921_mcu_drv_pmctrl(dev);
mt7921_dma_cleanup(dev);
+ mt7921_wfsys_reset(dev);
mt7921_mcu_exit(dev);
mt7921_mcu_fw_pmctrl(dev);

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index 04506424b864..24f24a2d8395 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -1280,12 +1280,9 @@ void mt7921_mac_reset_work(struct work_struct *work)
cancel_work_sync(&pm->wake_work);

mutex_lock(&dev->mt76.mutex);
- for (i = 0; i < 10; i++) {
- __mt7921_mcu_drv_pmctrl(dev);
-
+ for (i = 0; i < 10; i++)
if (!mt7921_dev_reset(dev))
break;
- }
mutex_unlock(&dev->mt76.mutex);

if (i == 10)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index 3f6c9839d9d4..5553221b7f5c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -160,9 +160,8 @@ mt7921_mcu_parse_eeprom(struct mt76_dev *dev, struct sk_buff *skb)
return 0;
}

-static int
-mt7921_mcu_parse_response(struct mt76_dev *mdev, int cmd,
- struct sk_buff *skb, int seq)
+int mt7921_mcu_parse_response(struct mt76_dev *mdev, int cmd,
+ struct sk_buff *skb, int seq)
{
struct mt7921_mcu_rxd *rxd;
int mcu_cmd = cmd & MCU_CMD_MASK;
@@ -224,9 +223,8 @@ mt7921_mcu_parse_response(struct mt76_dev *mdev, int cmd,
return ret;
}

-static int
-mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
- int cmd, int *wait_seq)
+int mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
+ int cmd, int *wait_seq)
{
struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
int txd_len, mcu_cmd = cmd & MCU_CMD_MASK;
@@ -590,7 +588,7 @@ int mt7921_mcu_uni_rx_ba(struct mt7921_dev *dev,
enable, false);
}

-static int mt7921_mcu_restart(struct mt76_dev *dev)
+int mt7921_mcu_restart(struct mt76_dev *dev)
{
struct {
u8 power_mode;
@@ -603,20 +601,6 @@ static int mt7921_mcu_restart(struct mt76_dev *dev)
sizeof(req), false);
}

-static int mt7921_driver_own(struct mt7921_dev *dev)
-{
- u32 reg = mt7921_reg_map_l1(dev, MT_TOP_LPCR_HOST_BAND0);
-
- mt76_wr(dev, reg, MT_TOP_LPCR_HOST_DRV_OWN);
- if (!mt76_poll_msec(dev, reg, MT_TOP_LPCR_HOST_FW_OWN,
- 0, 500)) {
- dev_err(dev->mt76.dev, "Timeout for driver own\n");
- return -EIO;
- }
-
- return 0;
-}
-
static u32 mt7921_get_data_mode(struct mt7921_dev *dev, u32 info)
{
u32 mode = DL_MODE_NEED_RSP;
@@ -883,7 +867,6 @@ static int mt7921_load_firmware(struct mt7921_dev *dev)
}

fw_loaded:
- mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false);

#ifdef CONFIG_PM
dev->mt76.hw->wiphy->wowlan = &mt76_connac_wowlan_support;
@@ -911,10 +894,6 @@ int mt7921_run_firmware(struct mt7921_dev *dev)
{
int err;

- err = mt7921_driver_own(dev);
- if (err)
- return err;
-
err = mt7921_load_firmware(dev);
if (err)
return err;
@@ -925,23 +904,8 @@ int mt7921_run_firmware(struct mt7921_dev *dev)
return mt76_connac_mcu_get_nic_capability(&dev->mphy);
}

-int mt7921_mcu_init(struct mt7921_dev *dev)
-{
- static const struct mt76_mcu_ops mt7921_mcu_ops = {
- .headroom = sizeof(struct mt7921_mcu_txd),
- .mcu_skb_send_msg = mt7921_mcu_send_message,
- .mcu_parse_response = mt7921_mcu_parse_response,
- .mcu_restart = mt7921_mcu_restart,
- };
-
- dev->mt76.mcu_ops = &mt7921_mcu_ops;
-
- return mt7921_run_firmware(dev);
-}
-
void mt7921_mcu_exit(struct mt7921_dev *dev)
{
- mt7921_wfsys_reset(dev);
skb_queue_purge(&dev->mt76.mcu.res_q);
}

@@ -1231,35 +1195,6 @@ int mt7921_mcu_sta_update(struct mt7921_dev *dev, struct ieee80211_sta *sta,
return mt76_connac_mcu_sta_cmd(&dev->mphy, &info);
}

-int __mt7921_mcu_drv_pmctrl(struct mt7921_dev *dev)
-{
- struct mt76_phy *mphy = &dev->mt76.phy;
- struct mt76_connac_pm *pm = &dev->pm;
- int i, err = 0;
-
- for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) {
- mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_CLR_OWN);
- if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL,
- PCIE_LPCR_HOST_OWN_SYNC, 0, 50))
- break;
- }
-
- if (i == MT7921_DRV_OWN_RETRY_COUNT) {
- dev_err(dev->mt76.dev, "driver own failed\n");
- err = -EIO;
- goto out;
- }
-
- mt7921_wpdma_reinit_cond(dev);
- clear_bit(MT76_STATE_PM, &mphy->state);
-
- pm->stats.last_wake_event = jiffies;
- pm->stats.doze_time += pm->stats.last_wake_event -
- pm->stats.last_doze_event;
-out:
- return err;
-}
-
int mt7921_mcu_drv_pmctrl(struct mt7921_dev *dev)
{
struct mt76_phy *mphy = &dev->mt76.phy;
@@ -1285,29 +1220,14 @@ int mt7921_mcu_fw_pmctrl(struct mt7921_dev *dev)
{
struct mt76_phy *mphy = &dev->mt76.phy;
struct mt76_connac_pm *pm = &dev->pm;
- int i, err = 0;
+ int err = 0;

mutex_lock(&pm->mutex);

if (mt76_connac_skip_fw_pmctrl(mphy, pm))
goto out;

- for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) {
- mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_SET_OWN);
- if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL,
- PCIE_LPCR_HOST_OWN_SYNC, 4, 50))
- break;
- }
-
- if (i == MT7921_DRV_OWN_RETRY_COUNT) {
- dev_err(dev->mt76.dev, "firmware own failed\n");
- clear_bit(MT76_STATE_PM, &mphy->state);
- err = -EIO;
- }
-
- pm->stats.last_doze_event = jiffies;
- pm->stats.awake_time += pm->stats.last_doze_event -
- pm->stats.last_wake_event;
+ err = __mt7921_mcu_fw_pmctrl(dev);
out:
mutex_unlock(&pm->mutex);

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
index a6c3661b2bdd..9c15c9bdd41e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -133,9 +133,15 @@ struct mt7921_phy {
struct delayed_work scan_work;
};

-#define mt7921_dev_reset(dev) ((dev)->hif_ops->reset(dev))
+#define mt7921_dev_reset(dev) ((dev)->hif_ops->reset(dev))
+#define mt7921_mcu_init(dev) ((dev)->hif_ops->mcu_init(dev))
+#define __mt7921_mcu_drv_pmctrl(dev) ((dev)->hif_ops->drv_own(dev))
+#define __mt7921_mcu_fw_pmctrl(dev) ((dev)->hif_ops->fw_own(dev))
struct mt7921_hif_ops {
int (*reset)(struct mt7921_dev *dev);
+ int (*mcu_init)(struct mt7921_dev *dev);
+ int (*drv_own)(struct mt7921_dev *dev);
+ int (*fw_own)(struct mt7921_dev *dev);
};

struct mt7921_dev {
@@ -250,7 +256,6 @@ int mt7921_wpdma_reset(struct mt7921_dev *dev, bool force);
int mt7921_wpdma_reinit_cond(struct mt7921_dev *dev);
void mt7921_dma_cleanup(struct mt7921_dev *dev);
int mt7921_run_firmware(struct mt7921_dev *dev);
-int mt7921_mcu_init(struct mt7921_dev *dev);
int mt7921_mcu_add_key(struct mt7921_dev *dev, struct ieee80211_vif *vif,
struct mt7921_sta *msta, struct ieee80211_key_conf *key,
enum set_key_cmd cmd);
@@ -364,7 +369,6 @@ int mt7921_mcu_uni_rx_ba(struct mt7921_dev *dev,
bool enable);
void mt7921_scan_work(struct work_struct *work);
int mt7921_mcu_uni_bss_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif);
-int __mt7921_mcu_drv_pmctrl(struct mt7921_dev *dev);
int mt7921_mcu_drv_pmctrl(struct mt7921_dev *dev);
int mt7921_mcu_fw_pmctrl(struct mt7921_dev *dev);
void mt7921_pm_wake_work(struct work_struct *work);
@@ -383,7 +387,17 @@ void mt7921_mac_write_txwi(struct mt7921_dev *dev, __le32 *txwi,
bool beacon);
void mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi);
void mt7921_mac_sta_poll(struct mt7921_dev *dev);
+int mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
+ int cmd, int *wait_seq);
+int mt7921_mcu_parse_response(struct mt76_dev *mdev, int cmd,
+ struct sk_buff *skb, int seq);
+int mt7921_mcu_restart(struct mt76_dev *dev);
+
void mt7921e_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
struct sk_buff *skb);
int mt7921e_mac_reset(struct mt7921_dev *dev);
+int mt7921e_mcu_init(struct mt7921_dev *dev);
+int mt7921e_mcu_drv_pmctrl(struct mt7921_dev *dev);
+int mt7921e_mcu_fw_pmctrl(struct mt7921_dev *dev);
+
#endif
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
index b01b9b7c42b4..b16bcee08cd7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
@@ -117,6 +117,9 @@ static int mt7921_pci_probe(struct pci_dev *pdev,

static const struct mt7921_hif_ops mt7921_pcie_ops = {
.reset = mt7921e_mac_reset,
+ .mcu_init = mt7921e_mcu_init,
+ .drv_own = mt7921e_mcu_drv_pmctrl,
+ .fw_own = mt7921e_mcu_fw_pmctrl,
};

struct mt7921_dev *dev;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c
index 9772be874375..4e8fa21b3052 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c
@@ -285,6 +285,8 @@ int mt7921e_mac_reset(struct mt7921_dev *dev)
{
int i, err;

+ mt7921e_mcu_drv_pmctrl(dev);
+
mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);

mt76_wr(dev, MT_WFDMA0_HOST_INT_ENA, 0);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci_mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci_mcu.c
new file mode 100644
index 000000000000..9ac3bc25f067
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci_mcu.c
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2021 MediaTek Inc. */
+
+#include "mt7921.h"
+#include "mcu.h"
+
+static int mt7921e_driver_own(struct mt7921_dev *dev)
+{
+ u32 reg = mt7921_reg_map_l1(dev, MT_TOP_LPCR_HOST_BAND0);
+
+ mt76_wr(dev, reg, MT_TOP_LPCR_HOST_DRV_OWN);
+ if (!mt76_poll_msec(dev, reg, MT_TOP_LPCR_HOST_FW_OWN,
+ 0, 500)) {
+ dev_err(dev->mt76.dev, "Timeout for driver own\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+int mt7921e_mcu_init(struct mt7921_dev *dev)
+{
+ static const struct mt76_mcu_ops mt7921_mcu_ops = {
+ .headroom = sizeof(struct mt7921_mcu_txd),
+ .mcu_skb_send_msg = mt7921_mcu_send_message,
+ .mcu_parse_response = mt7921_mcu_parse_response,
+ .mcu_restart = mt7921_mcu_restart,
+ };
+ int err;
+
+ dev->mt76.mcu_ops = &mt7921_mcu_ops;
+
+ err = mt7921e_driver_own(dev);
+ if (err)
+ return err;
+
+ err = mt7921_run_firmware(dev);
+
+ mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false);
+
+ return err;
+}
+
+int mt7921e_mcu_drv_pmctrl(struct mt7921_dev *dev)
+{
+ struct mt76_phy *mphy = &dev->mt76.phy;
+ struct mt76_connac_pm *pm = &dev->pm;
+ int i, err = 0;
+
+ for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) {
+ mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_CLR_OWN);
+ if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL,
+ PCIE_LPCR_HOST_OWN_SYNC, 0, 50))
+ break;
+ }
+
+ if (i == MT7921_DRV_OWN_RETRY_COUNT) {
+ dev_err(dev->mt76.dev, "driver own failed\n");
+ err = -EIO;
+ goto out;
+ }
+
+ mt7921_wpdma_reinit_cond(dev);
+ clear_bit(MT76_STATE_PM, &mphy->state);
+
+ pm->stats.last_wake_event = jiffies;
+ pm->stats.doze_time += pm->stats.last_wake_event -
+ pm->stats.last_doze_event;
+out:
+ return err;
+}
+
+int mt7921e_mcu_fw_pmctrl(struct mt7921_dev *dev)
+{
+ struct mt76_phy *mphy = &dev->mt76.phy;
+ struct mt76_connac_pm *pm = &dev->pm;
+ int i, err = 0;
+
+ for (i = 0; i < MT7921_DRV_OWN_RETRY_COUNT; i++) {
+ mt76_wr(dev, MT_CONN_ON_LPCTL, PCIE_LPCR_HOST_SET_OWN);
+ if (mt76_poll_msec(dev, MT_CONN_ON_LPCTL,
+ PCIE_LPCR_HOST_OWN_SYNC, 4, 50))
+ break;
+ }
+
+ if (i == MT7921_DRV_OWN_RETRY_COUNT) {
+ dev_err(dev->mt76.dev, "firmware own failed\n");
+ clear_bit(MT76_STATE_PM, &mphy->state);
+ err = -EIO;
+ }
+
+ pm->stats.last_doze_event = jiffies;
+ pm->stats.awake_time += pm->stats.last_doze_event -
+ pm->stats.last_wake_event;
+
+ return err;
+}
--
2.25.1