[PATCH v2 15/16] mt76: mt7921: introduce mt7921s support

sean.wang
2021-09-18T00:05:10Z

Introduce support for mt7921s 802.11ax (Wi-Fi 6) 2x2:2SS chipset.

Tested-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
.../net/wireless/mediatek/mt76/mt7921/Kconfig | 10 +
.../wireless/mediatek/mt76/mt7921/Makefile | 2 +
.../wireless/mediatek/mt76/mt7921/debugfs.c | 18 +-
.../net/wireless/mediatek/mt76/mt7921/init.c | 11 +-
.../net/wireless/mediatek/mt76/mt7921/mac.c | 22 +-
.../net/wireless/mediatek/mt76/mt7921/mac.h | 4 +
.../net/wireless/mediatek/mt76/mt7921/mcu.c | 14 +-
.../wireless/mediatek/mt76/mt7921/mt7921.h | 30 ++
.../net/wireless/mediatek/mt76/mt7921/sdio.c | 282 ++++++++++++++++++
.../wireless/mediatek/mt76/mt7921/sdio_mac.c | 87 ++++++
.../wireless/mediatek/mt76/mt7921/sdio_mcu.c | 127 ++++++++
11 files changed, 592 insertions(+), 15 deletions(-)
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7921/sdio.c
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7921/sdio_mcu.c

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/Kconfig b/drivers/net/wireless/mediatek/mt76/mt7921/Kconfig
index 071746809b1c..ce3a06227901 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/Kconfig
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/Kconfig
@@ -13,3 +13,13 @@ config MT7921E
This adds support for MT7921E 802.11ax 2x2:2SS wireless devices.

To compile this driver as a module, choose M here.
+
+config MT7921S
+ tristate "MediaTek MT7921S (SDIO) support"
+ select MT76_SDIO
+ select MT7921_COMMON
+ depends on MAC80211
+ help
+ This adds support for MT7921S 802.11ax 2x2:2SS wireless devices.
+
+ To compile this driver as a module, choose M here.
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/Makefile b/drivers/net/wireless/mediatek/mt76/mt7921/Makefile
index 5f32c2c71134..1187acedfeda 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/Makefile
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/Makefile
@@ -2,9 +2,11 @@

obj-$(CONFIG_MT7921_COMMON) += mt7921-common.o
obj-$(CONFIG_MT7921E) += mt7921e.o
+obj-$(CONFIG_MT7921S) += mt7921s.o

CFLAGS_trace.o := -I$(src)

mt7921-common-y := mac.o mcu.o main.o init.o debugfs.o trace.o
mt7921-common-$(CONFIG_NL80211_TESTMODE) += testmode.o
mt7921e-y := pci.o pci_mac.o pci_mcu.o dma.o
+mt7921s-y := sdio.o sdio_mac.o sdio_mcu.o
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
index 11f8acf4f59e..0bb413615331 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c
@@ -413,6 +413,20 @@ static int mt7921_chip_reset(void *data, u64 val)

DEFINE_DEBUGFS_ATTRIBUTE(fops_reset, NULL, mt7921_chip_reset, "%lld\n");

+static int
+mt7921s_sched_quota_read(struct seq_file *s, void *data)
+{
+ struct mt7921_dev *dev = dev_get_drvdata(s->private);
+ struct mt76_sdio *sdio = &dev->mt76.sdio;
+
+ seq_printf(s, "pse_data_quota\t%d\n", sdio->sched.pse_data_quota);
+ seq_printf(s, "ple_data_quota\t%d\n", sdio->sched.ple_data_quota);
+ seq_printf(s, "pse_mcu_quota\t%d\n", sdio->sched.pse_mcu_quota);
+ seq_printf(s, "sched_deficit\t%d\n", sdio->sched.deficit);
+
+ return 0;
+}
+
int mt7921_init_debugfs(struct mt7921_dev *dev)
{
struct dentry *dir;
@@ -436,6 +450,8 @@ int mt7921_init_debugfs(struct mt7921_dev *dev)
debugfs_create_devm_seqfile(dev->mt76.dev, "runtime_pm_stats", dir,
mt7921_pm_stats);
debugfs_create_file("deep-sleep", 0600, dir, dev, &fops_ds);
-
+ if (mt76_is_sdio(&dev->mt76))
+ debugfs_create_devm_seqfile(dev->mt76.dev, "sched-quota", dir,
+ mt7921s_sched_quota_read);
return 0;
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
index 6a4b014e8afd..2b7260be224f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
@@ -231,8 +231,15 @@ int mt7921_register_device(struct mt7921_dev *dev)
dev->pm.idle_timeout = MT7921_PM_TIMEOUT;
dev->pm.stats.last_wake_event = jiffies;
dev->pm.stats.last_doze_event = jiffies;
- dev->pm.enable = true;
- dev->pm.ds_enable = true;
+
+ /* TODO: mt7921s run sleep mode on default */
+ if (mt76_is_mmio(&dev->mt76)) {
+ dev->pm.enable = true;
+ dev->pm.ds_enable = true;
+ }
+
+ if (mt76_is_sdio(&dev->mt76))
+ hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;

ret = mt7921_init_hardware(dev);
if (ret)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index 5812b518a571..6d9921d15126 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -847,6 +847,8 @@ void mt7921_mac_write_txwi(struct mt7921_dev *dev, __le32 *txwi,
struct ieee80211_vif *vif = info->control.vif;
struct mt76_phy *mphy = &dev->mphy;
u8 p_fmt, q_idx, omac_idx = 0, wmm_idx = 0;
+ bool is_mmio = mt76_is_mmio(&dev->mt76);
+ u32 sz_txd = is_mmio ? MT_TXD_SIZE : MT_SDIO_TXD_SIZE;
bool is_8023 = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP;
u16 tx_count = 15;
u32 val;
@@ -862,15 +864,15 @@ void mt7921_mac_write_txwi(struct mt7921_dev *dev, __le32 *txwi,
p_fmt = MT_TX_TYPE_FW;
q_idx = MT_LMAC_BCN0;
} else if (skb_get_queue_mapping(skb) >= MT_TXQ_PSD) {
- p_fmt = MT_TX_TYPE_CT;
+ p_fmt = is_mmio ? MT_TX_TYPE_CT : MT_TX_TYPE_SF;
q_idx = MT_LMAC_ALTX0;
} else {
- p_fmt = MT_TX_TYPE_CT;
+ p_fmt = is_mmio ? MT_TX_TYPE_CT : MT_TX_TYPE_SF;
q_idx = wmm_idx * MT7921_MAX_WMM_SETS +
mt7921_lmac_mapping(dev, skb_get_queue_mapping(skb));
}

- val = FIELD_PREP(MT_TXD0_TX_BYTES, skb->len + MT_TXD_SIZE) |
+ val = FIELD_PREP(MT_TXD0_TX_BYTES, skb->len + sz_txd) |
FIELD_PREP(MT_TXD0_PKT_FMT, p_fmt) |
FIELD_PREP(MT_TXD0_Q_IDX, q_idx);
txwi[0] = cpu_to_le32(val);
@@ -1388,12 +1390,18 @@ void mt7921_pm_wake_work(struct work_struct *work)
mphy = dev->phy.mt76;

if (!mt7921_mcu_drv_pmctrl(dev)) {
+ struct mt76_dev *mdev = &dev->mt76;
int i;

- mt76_for_each_q_rx(&dev->mt76, i)
- napi_schedule(&dev->mt76.napi[i]);
- mt76_connac_pm_dequeue_skbs(mphy, &dev->pm);
- mt7921_mcu_tx_cleanup(dev);
+ if (mt76_is_sdio(mdev)) {
+ mt76_connac_pm_dequeue_skbs(mphy, &dev->pm);
+ mt76_worker_schedule(&mdev->sdio.txrx_worker);
+ } else {
+ mt76_for_each_q_rx(mdev, i)
+ napi_schedule(&mdev->napi[i]);
+ mt76_connac_pm_dequeue_skbs(mphy, &dev->pm);
+ mt7921_mcu_tx_cleanup(dev);
+ }
if (test_bit(MT76_STATE_RUNNING, &mphy->state))
ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
MT7921_WATCHDOG_TIME);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.h b/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
index ad2e52c97aa8..544a1c33126a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
@@ -199,6 +199,10 @@ enum tx_mcu_port_q_idx {

#define MT_TXD_SIZE (8 * 4)

+#define MT_SDIO_TXD_SIZE (MT_TXD_SIZE + 8 * 4)
+#define MT_SDIO_TAIL_SIZE 8
+#define MT_SDIO_HDR_SIZE 4
+
#define MT_TXD0_Q_IDX GENMASK(31, 25)
#define MT_TXD0_PKT_FMT GENMASK(24, 23)
#define MT_TXD0_ETH_TYPE_OFFSET GENMASK(22, 16)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index 2c65fe23a83c..11f4df918fdb 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -653,7 +653,9 @@ static int mt7921_load_patch(struct mt7921_dev *dev)
{
const struct mt7921_patch_hdr *hdr;
const struct firmware *fw = NULL;
- int i, ret, sem;
+ int i, ret, sem, max_len;
+
+ max_len = mt76_is_sdio(&dev->mt76) ? 2048 : 4096;

sem = mt76_connac_mcu_patch_sem_ctrl(&dev->mt76, true);
switch (sem) {
@@ -709,7 +711,7 @@ static int mt7921_load_patch(struct mt7921_dev *dev)
}

ret = __mt76_mcu_send_firmware(&dev->mt76, MCU_CMD_FW_SCATTER,
- dl, len, 4096);
+ dl, len, max_len);
if (ret) {
dev_err(dev->mt76.dev, "Failed to send patch\n");
goto out;
@@ -756,9 +758,11 @@ mt7921_mcu_send_ram_firmware(struct mt7921_dev *dev,
const struct mt7921_fw_trailer *hdr,
const u8 *data, bool is_wa)
{
- int i, offset = 0;
+ int i, offset = 0, max_len;
u32 override = 0, option = 0;

+ max_len = mt76_is_sdio(&dev->mt76) ? 2048 : 4096;
+
for (i = 0; i < hdr->n_region; i++) {
const struct mt7921_fw_region *region;
int err;
@@ -781,7 +785,7 @@ mt7921_mcu_send_ram_firmware(struct mt7921_dev *dev,
}

err = __mt76_mcu_send_firmware(&dev->mt76, MCU_CMD_FW_SCATTER,
- data + offset, len, 4096);
+ data + offset, len, max_len);
if (err) {
dev_err(dev->mt76.dev, "Failed to send firmware.\n");
return err;
@@ -854,7 +858,7 @@ static int mt7921_load_firmware(struct mt7921_dev *dev)
int ret;

ret = mt76_get_field(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_N9_RDY);
- if (ret) {
+ if (ret && mt76_is_mmio(&dev->mt76)) {
dev_dbg(dev->mt76.dev, "Firmware is already download\n");
goto fw_loaded;
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
index f4b85ec530bd..6d0edb8ce1d6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -47,6 +47,16 @@
#define MT7921_SKU_MAX_DELTA_IDX MT7921_SKU_RATE_NUM
#define MT7921_SKU_TABLE_SIZE (MT7921_SKU_RATE_NUM + 1)

+#define MT7921_SDIO_HDR_TX_BYTES GENMASK(15, 0)
+#define MT7921_SDIO_HDR_PKT_TYPE GENMASK(17, 16)
+
+enum mt7921_sdio_pkt_type {
+ MT7921_SDIO_TXD,
+ MT7921_SDIO_DATA,
+ MT7921_SDIO_CMD,
+ MT7921_SDIO_FWDL,
+};
+
#define to_rssi(field, rxv) ((FIELD_GET(field, rxv) - 220) / 2)
#define to_rcpi(rssi) (2 * (rssi) + 220)

@@ -321,6 +331,17 @@ static inline void mt7921_mcu_tx_cleanup(struct mt7921_dev *dev)
mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_WA], false);
}

+static inline void mt7921_skb_add_sdio_hdr(struct sk_buff *skb,
+ enum mt7921_sdio_pkt_type type)
+{
+ u32 hdr;
+
+ hdr = FIELD_PREP(MT7921_SDIO_HDR_TX_BYTES, skb->len + sizeof(hdr)) |
+ FIELD_PREP(MT7921_SDIO_HDR_PKT_TYPE, type);
+
+ put_unaligned_le32(hdr, skb_push(skb, sizeof(hdr)));
+}
+
int mt7921_mac_init(struct mt7921_dev *dev);
bool mt7921_mac_wtbl_update(struct mt7921_dev *dev, int idx, u32 mask);
void mt7921_mac_reset_counters(struct mt7921_phy *phy);
@@ -394,4 +415,13 @@ 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);

+int mt7921s_mcu_init(struct mt7921_dev *dev);
+int mt7921s_mcu_drv_pmctrl(struct mt7921_dev *dev);
+int mt7921s_mcu_fw_pmctrl(struct mt7921_dev *dev);
+int mt7921s_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);
+void mt7921s_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e);
+bool mt7921s_tx_status_data(struct mt76_dev *mdev, u8 *update);
#endif
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c b/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c
new file mode 100644
index 000000000000..87d0954a7989
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/sdio.c
@@ -0,0 +1,282 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2021 MediaTek Inc.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+
+#include <linux/mmc/host.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/mmc/sdio_func.h>
+
+#include "mt7921.h"
+#include "../sdio.h"
+#include "mac.h"
+#include "mcu.h"
+
+static const struct sdio_device_id mt7921s_table[] = {
+ { SDIO_DEVICE(SDIO_VENDOR_ID_MEDIATEK, 0x7901) },
+ { } /* Terminating entry */
+};
+
+static void mt7921s_txrx_worker(struct mt76_worker *w)
+{
+ struct mt76_sdio *sdio = container_of(w, struct mt76_sdio,
+ txrx_worker);
+ struct mt76_dev *mdev = container_of(sdio, struct mt76_dev, sdio);
+ struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+
+ if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) {
+ queue_work(mdev->wq, &dev->pm.wake_work);
+ return;
+ }
+
+ mt76s_txrx_worker(sdio);
+ mt76_connac_pm_unref(&dev->mphy, &dev->pm);
+}
+
+static void mt7921s_unregister_device(struct mt7921_dev *dev)
+{
+ struct mt76_connac_pm *pm = &dev->pm;
+
+ mt76_unregister_device(&dev->mt76);
+ cancel_delayed_work_sync(&pm->ps_work);
+ cancel_work_sync(&pm->wake_work);
+
+ mt76s_deinit(&dev->mt76);
+ mt7921_mcu_exit(dev);
+
+ mt76_free_device(&dev->mt76);
+}
+
+static int mt7921s_probe(struct sdio_func *func,
+ const struct sdio_device_id *id)
+{
+ static const struct mt76_driver_ops drv_ops = {
+ .txwi_size = MT_SDIO_TXD_SIZE,
+ .survey_flags = SURVEY_INFO_TIME_TX |
+ SURVEY_INFO_TIME_RX |
+ SURVEY_INFO_TIME_BSS_RX,
+ .tx_prepare_skb = mt7921s_tx_prepare_skb,
+ .tx_complete_skb = mt7921s_tx_complete_skb,
+ .tx_status_data = mt7921s_tx_status_data,
+ .rx_skb = mt7921_queue_rx_skb,
+ .sta_ps = mt7921_sta_ps,
+ .sta_add = mt7921_mac_sta_add,
+ .sta_assoc = mt7921_mac_sta_assoc,
+ .sta_remove = mt7921_mac_sta_remove,
+ .update_survey = mt7921_update_channel,
+ };
+ static const struct mt76_bus_ops mt7921s_ops = {
+ .rr = mt76s_rr,
+ .rmw = mt76s_rmw,
+ .wr = mt76s_wr,
+ .write_copy = mt76s_write_copy,
+ .read_copy = mt76s_read_copy,
+ .wr_rp = mt76s_wr_rp,
+ .rd_rp = mt76s_rd_rp,
+ .type = MT76_BUS_SDIO,
+ };
+ static const struct mt7921_hif_ops mt7921_sdio_ops = {
+ .mcu_init = mt7921s_mcu_init,
+ .drv_own = mt7921s_mcu_drv_pmctrl,
+ .fw_own = mt7921s_mcu_fw_pmctrl,
+ };
+
+ struct mt7921_dev *dev;
+ struct mt76_dev *mdev;
+ int ret, i;
+
+ mdev = mt76_alloc_device(&func->dev, sizeof(*dev), &mt7921_ops,
+ &drv_ops);
+ if (!mdev)
+ return -ENOMEM;
+
+ dev = container_of(mdev, struct mt7921_dev, mt76);
+ dev->hif_ops = &mt7921_sdio_ops;
+
+ sdio_set_drvdata(func, dev);
+
+ ret = mt76s_init(mdev, func, &mt7921s_ops);
+ if (ret < 0)
+ goto error;
+
+ ret = mt76s_hw_init(mdev, func, MT76_CONNAC2_SDIO);
+ if (ret)
+ 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);
+
+ mdev->sdio.intr_size = sizeof(struct mt76_connac2_sdio_intr);
+ mdev->sdio.intr_data = devm_kmalloc(mdev->dev,
+ mdev->sdio.intr_size,
+ GFP_KERNEL);
+ if (!mdev->sdio.intr_data) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(mdev->sdio.xmit_buf); i++) {
+ mdev->sdio.xmit_buf[i] = devm_kmalloc(mdev->dev,
+ MT76S_XMIT_BUF_SZ,
+ GFP_KERNEL);
+ if (!mdev->sdio.xmit_buf[i]) {
+ ret = -ENOMEM;
+ goto error;
+ }
+ }
+
+ ret = mt76s_alloc_queues(&dev->mt76);
+ if (ret)
+ goto error;
+
+ ret = mt76_worker_setup(mt76_hw(dev), &mdev->sdio.txrx_worker,
+ mt7921s_txrx_worker, "sdio-txrx");
+ if (ret)
+ goto error;
+
+ sched_set_fifo_low(mdev->sdio.txrx_worker.task);
+
+ ret = mt7921_register_device(dev);
+ if (ret)
+ goto error;
+
+ return 0;
+
+error:
+ mt76s_deinit(&dev->mt76);
+ mt76_free_device(&dev->mt76);
+
+ return ret;
+}
+
+static void mt7921s_remove(struct sdio_func *func)
+{
+ struct mt7921_dev *dev = sdio_get_drvdata(func);
+
+ mt7921s_unregister_device(dev);
+}
+
+#ifdef CONFIG_PM
+static int mt7921s_suspend(struct device *__dev)
+{
+ struct sdio_func *func = dev_to_sdio_func(__dev);
+ struct mt7921_dev *dev = sdio_get_drvdata(func);
+ struct mt76_connac_pm *pm = &dev->pm;
+ struct mt76_dev *mdev = &dev->mt76;
+ bool hif_suspend;
+ int err;
+
+ pm->suspended = true;
+ cancel_delayed_work_sync(&pm->ps_work);
+ cancel_work_sync(&pm->wake_work);
+
+ err = mt7921_mcu_drv_pmctrl(dev);
+ if (err < 0)
+ goto restore_suspend;
+
+ hif_suspend = !test_bit(MT76_STATE_SUSPEND, &dev->mphy.state);
+ if (hif_suspend) {
+ err = mt76_connac_mcu_set_hif_suspend(mdev, true);
+ if (err)
+ goto restore_suspend;
+ }
+
+ /* always enable deep sleep during suspend to reduce
+ * power consumption
+ */
+ mt76_connac_mcu_set_deep_sleep(mdev, true);
+
+ mt76_txq_schedule_all(&dev->mphy);
+ mt76_worker_disable(&mdev->tx_worker);
+ mt76_worker_disable(&mdev->sdio.txrx_worker);
+ mt76_worker_disable(&mdev->sdio.status_worker);
+ mt76_worker_disable(&mdev->sdio.net_worker);
+ cancel_work_sync(&mdev->sdio.stat_work);
+ clear_bit(MT76_READING_STATS, &dev->mphy.state);
+
+ mt76_tx_status_check(mdev, true);
+
+ err = mt7921_mcu_fw_pmctrl(dev);
+ if (err)
+ goto restore_worker;
+
+ sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+
+ return 0;
+
+restore_worker:
+ mt76_worker_enable(&mdev->tx_worker);
+ mt76_worker_enable(&mdev->sdio.txrx_worker);
+ mt76_worker_enable(&mdev->sdio.status_worker);
+ mt76_worker_enable(&mdev->sdio.net_worker);
+
+ if (!pm->ds_enable)
+ mt76_connac_mcu_set_deep_sleep(mdev, false);
+
+ if (hif_suspend)
+ mt76_connac_mcu_set_hif_suspend(mdev, false);
+
+restore_suspend:
+ pm->suspended = false;
+
+ return err;
+}
+
+static int mt7921s_resume(struct device *__dev)
+{
+ struct sdio_func *func = dev_to_sdio_func(__dev);
+ struct mt7921_dev *dev = sdio_get_drvdata(func);
+ struct mt76_connac_pm *pm = &dev->pm;
+ struct mt76_dev *mdev = &dev->mt76;
+ int err;
+
+ pm->suspended = false;
+
+ err = mt7921_mcu_drv_pmctrl(dev);
+ if (err < 0)
+ return err;
+
+ mt76_worker_enable(&mdev->tx_worker);
+ mt76_worker_enable(&mdev->sdio.txrx_worker);
+ mt76_worker_enable(&mdev->sdio.status_worker);
+ mt76_worker_enable(&mdev->sdio.net_worker);
+
+ /* restore previous ds setting */
+ if (!pm->ds_enable)
+ mt76_connac_mcu_set_deep_sleep(mdev, false);
+
+ if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state))
+ err = mt76_connac_mcu_set_hif_suspend(mdev, false);
+
+ return err;
+}
+
+static const struct dev_pm_ops mt7921s_pm_ops = {
+ .suspend = mt7921s_suspend,
+ .resume = mt7921s_resume,
+};
+#endif
+
+MODULE_DEVICE_TABLE(sdio, mt7921s_table);
+MODULE_FIRMWARE(MT7921_FIRMWARE_WM);
+MODULE_FIRMWARE(MT7921_ROM_PATCH);
+
+static struct sdio_driver mt7921s_driver = {
+ .name = KBUILD_MODNAME,
+ .probe = mt7921s_probe,
+ .remove = mt7921s_remove,
+ .id_table = mt7921s_table,
+#ifdef CONFIG_PM
+ .drv = {
+ .pm = &mt7921s_pm_ops,
+ }
+#endif
+};
+module_sdio_driver(mt7921s_driver);
+MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c
new file mode 100644
index 000000000000..91a7acd49ee4
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2021 MediaTek Inc. */
+
+#include <linux/iopoll.h>
+#include <linux/mmc/sdio_func.h>
+#include "mt7921.h"
+#include "mac.h"
+
+static void
+mt7921s_write_txwi(struct mt7921_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);
+ struct ieee80211_key_conf *key = info->control.hw_key;
+ __le32 *txwi;
+ int pid;
+
+ pid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb);
+ txwi = (__le32 *)(skb->data - MT_SDIO_TXD_SIZE);
+ memset(txwi, 0, MT_SDIO_TXD_SIZE);
+ mt7921_mac_write_txwi(dev, txwi, skb, wcid, key, pid, false);
+ skb_push(skb, MT_SDIO_TXD_SIZE);
+}
+
+int mt7921s_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 mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
+ struct sk_buff *skb = tx_info->skb;
+ int pad;
+
+ if (unlikely(tx_info->skb->len <= ETH_HLEN))
+ return -EINVAL;
+
+ if (!wcid)
+ wcid = &dev->mt76.global_wcid;
+
+ if (sta) {
+ struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
+
+ if (time_after(jiffies, msta->last_txs + HZ / 4)) {
+ info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
+ msta->last_txs = jiffies;
+ }
+ }
+
+ mt7921s_write_txwi(dev, wcid, qid, sta, skb);
+
+ mt7921_skb_add_sdio_hdr(skb, MT7921_SDIO_DATA);
+ pad = round_up(skb->len, 4) - skb->len;
+
+ return mt76_skb_adjust_pad(skb, pad);
+}
+
+void mt7921s_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e)
+{
+ __le32 *txwi = (__le32 *)(e->skb->data + MT_SDIO_HDR_SIZE);
+ unsigned int headroom = MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
+ struct ieee80211_sta *sta;
+ struct mt76_wcid *wcid;
+ u16 idx;
+
+ idx = FIELD_GET(MT_TXD1_WLAN_IDX, le32_to_cpu(txwi[1]));
+ wcid = rcu_dereference(mdev->wcid[idx]);
+ sta = wcid_to_sta(wcid);
+
+ if (sta && likely(e->skb->protocol != cpu_to_be16(ETH_P_PAE)))
+ mt7921_tx_check_aggr(sta, txwi);
+
+ skb_pull(e->skb, headroom);
+ mt76_tx_complete_skb(mdev, e->wcid, e->skb);
+}
+
+bool mt7921s_tx_status_data(struct mt76_dev *mdev, u8 *update)
+{
+ struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+
+ mt7921_mutex_acquire(dev);
+ mt7921_mac_sta_poll(dev);
+ mt7921_mutex_release(dev);
+
+ return 0;
+}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mcu.c
new file mode 100644
index 000000000000..049e06d7c3fb
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/sdio_mcu.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2021 MediaTek Inc. */
+
+#include <linux/kernel.h>
+#include <linux/mmc/sdio_func.h>
+#include <linux/module.h>
+#include <linux/iopoll.h>
+
+#include "mt7921.h"
+#include "../sdio.h"
+#include "mac.h"
+#include "mcu.h"
+#include "regs.h"
+
+static int
+mt7921s_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
+ int cmd, int *seq)
+{
+ struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+ enum mt7921_sdio_pkt_type type = MT7921_SDIO_CMD;
+ enum mt76_mcuq_id txq = MT_MCUQ_WM;
+ int ret, pad;
+
+ ret = mt7921_mcu_fill_message(mdev, skb, cmd, seq);
+ if (ret)
+ return ret;
+
+ if (cmd == MCU_CMD_FW_SCATTER)
+ type = MT7921_SDIO_FWDL;
+
+ mt7921_skb_add_sdio_hdr(skb, type);
+ pad = round_up(skb->len, 4) - skb->len;
+ __skb_put_zero(skb, pad);
+
+ ret = mt76_tx_queue_skb_raw(dev, mdev->q_mcu[txq], skb, 0);
+ if (ret)
+ return ret;
+
+ mt76_queue_kick(dev, mdev->q_mcu[txq]);
+
+ return ret;
+}
+
+int mt7921s_mcu_init(struct mt7921_dev *dev)
+{
+ static const struct mt76_mcu_ops mt7921s_mcu_ops = {
+ .headroom = MT_SDIO_HDR_SIZE + sizeof(struct mt7921_mcu_txd),
+ .tailroom = MT_SDIO_TAIL_SIZE,
+ .mcu_skb_send_msg = mt7921s_mcu_send_message,
+ .mcu_parse_response = mt7921_mcu_parse_response,
+ .mcu_rr = mt76_connac_mcu_reg_rr,
+ .mcu_wr = mt76_connac_mcu_reg_wr,
+ };
+ int ret;
+
+ mt7921s_mcu_drv_pmctrl(dev);
+
+ dev->mt76.mcu_ops = &mt7921s_mcu_ops;
+
+ ret = mt7921_run_firmware(dev);
+ if (ret)
+ return ret;
+
+ set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
+
+ return 0;
+}
+
+int mt7921s_mcu_drv_pmctrl(struct mt7921_dev *dev)
+{
+ struct sdio_func *func = dev->mt76.sdio.func;
+ struct mt76_phy *mphy = &dev->mt76.phy;
+ struct mt76_connac_pm *pm = &dev->pm;
+ int err = 0;
+ u32 status;
+
+ sdio_claim_host(func);
+
+ sdio_writel(func, WHLPCR_FW_OWN_REQ_CLR, MCR_WHLPCR, NULL);
+
+ err = readx_poll_timeout(mt76s_read_pcr, &dev->mt76, status,
+ status & WHLPCR_IS_DRIVER_OWN, 2000, 1000000);
+ sdio_release_host(func);
+
+ if (err < 0) {
+ dev_err(dev->mt76.dev, "driver own failed\n");
+ err = -EIO;
+ goto out;
+ }
+
+ 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 mt7921s_mcu_fw_pmctrl(struct mt7921_dev *dev)
+{
+ struct sdio_func *func = dev->mt76.sdio.func;
+ struct mt76_phy *mphy = &dev->mt76.phy;
+ struct mt76_connac_pm *pm = &dev->pm;
+ int err = 0;
+ u32 status;
+
+ sdio_claim_host(func);
+
+ sdio_writel(func, WHLPCR_FW_OWN_REQ_SET, MCR_WHLPCR, NULL);
+
+ err = readx_poll_timeout(mt76s_read_pcr, &dev->mt76, status,
+ !(status & WHLPCR_IS_DRIVER_OWN), 2000, 1000000);
+ sdio_release_host(func);
+
+ if (err < 0) {
+ 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