[PATCH 1/8] wifi: mt76: mt7996: introduce mt7996_band_valid()

Shayne Chen
2023-11-13T07:08:01Z

Replace dbdc_support and tbtc_support with mt7996_band_valid() to
support mt7996 variants with band0/band2 dual-band support.
This changes reduces ambiguity when checking supported bands on different
variants or new chipsets, as well as during the init configurations on
DMA TX/RX queues or irq masks.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
---
.../net/wireless/mediatek/mt76/mt7996/dma.c | 14 ++++-----
.../net/wireless/mediatek/mt76/mt7996/init.c | 29 ++++++++++---------
.../net/wireless/mediatek/mt76/mt7996/mcu.c | 16 +++++-----
.../wireless/mediatek/mt76/mt7996/mt7996.h | 16 ++++++++--
.../net/wireless/mediatek/mt76/mt7996/regs.h | 3 ++
5 files changed, 46 insertions(+), 32 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/dma.c b/drivers/net/wireless/mediatek/mt76/mt7996/dma.c
index 3514f395a017..e88096f442d3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/dma.c
@@ -233,13 +233,13 @@ void mt7996_dma_start(struct mt7996_dev *dev, bool reset, bool wed_reset)
/* enable interrupts for TX/RX rings */
irq_mask = MT_INT_MCU_CMD | MT_INT_RX_DONE_MCU | MT_INT_TX_DONE_MCU;

- if (!dev->mphy.band_idx)
+ if (mt7996_band_valid(dev, MT_BAND0))
irq_mask |= MT_INT_BAND0_RX_DONE;

- if (dev->dbdc_support)
+ if (mt7996_band_valid(dev, MT_BAND1))
irq_mask |= MT_INT_BAND1_RX_DONE;

- if (dev->tbtc_support)
+ if (mt7996_band_valid(dev, MT_BAND2))
irq_mask |= MT_INT_BAND2_RX_DONE;

if (mtk_wed_device_active(wed) && wed_reset) {
@@ -382,7 +382,7 @@ int mt7996_dma_rro_init(struct mt7996_dev *dev)
if (ret)
return ret;

- if (dev->dbdc_support) {
+ if (mt7996_band_valid(dev, MT_BAND1)) {
/* rx msdu page queue for band1 */
mdev->q_rx[MT_RXQ_MSDU_PAGE_BAND1].flags =
MT_WED_RRO_Q_MSDU_PG(1) | MT_QFLAG_WED_RRO_EN;
@@ -396,7 +396,7 @@ int mt7996_dma_rro_init(struct mt7996_dev *dev)
return ret;
}

- if (dev->tbtc_support) {
+ if (mt7996_band_valid(dev, MT_BAND2)) {
/* rx msdu page queue for band2 */
mdev->q_rx[MT_RXQ_MSDU_PAGE_BAND2].flags =
MT_WED_RRO_Q_MSDU_PG(2) | MT_QFLAG_WED_RRO_EN;
@@ -516,7 +516,7 @@ int mt7996_dma_init(struct mt7996_dev *dev)
if (ret)
return ret;

- if (dev->tbtc_support || dev->mphy.band_idx == MT_BAND2) {
+ if (mt7996_band_valid(dev, MT_BAND2)) {
/* rx data queue for band2 */
rx_base = MT_RXQ_RING_BASE(MT_RXQ_BAND2) + hif1_ofs;
ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_BAND2],
@@ -570,7 +570,7 @@ int mt7996_dma_init(struct mt7996_dev *dev)
if (ret)
return ret;

- if (dev->tbtc_support || dev->mphy.band_idx == MT_BAND2) {
+ if (mt7996_band_valid(dev, MT_BAND2)) {
/* rx rro data queue for band2 */
dev->mt76.q_rx[MT_RXQ_RRO_BAND2].flags =
MT_WED_RRO_Q_DATA(1) | MT_QFLAG_WED_RRO_EN;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
index 1896571ad140..64fa2f28c8c2 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c
@@ -540,7 +540,8 @@ int mt7996_txbf_init(struct mt7996_dev *dev)
{
int ret;

- if (dev->dbdc_support) {
+ if (mt7996_band_valid(dev, MT_BAND1) ||
+ mt7996_band_valid(dev, MT_BAND2)) {
ret = mt7996_mcu_set_txbf(dev, BF_MOD_EN_CTRL);
if (ret)
return ret;
@@ -563,11 +564,7 @@ static int mt7996_register_phy(struct mt7996_dev *dev, struct mt7996_phy *phy,
int ret;
struct mtk_wed_device *wed = &dev->mt76.mmio.wed;

- if (band != MT_BAND1 && band != MT_BAND2)
- return 0;
-
- if ((band == MT_BAND1 && !dev->dbdc_support) ||
- (band == MT_BAND2 && !dev->tbtc_support))
+ if (!mt7996_band_valid(dev, band) || band == MT_BAND0)
return 0;

if (phy)
@@ -897,9 +894,6 @@ static int mt7996_init_hardware(struct mt7996_dev *dev)
INIT_LIST_HEAD(&dev->wed_rro.poll_list);
spin_lock_init(&dev->wed_rro.lock);

- dev->dbdc_support = true;
- dev->tbtc_support = true;
-
ret = mt7996_dma_init(dev);
if (ret)
return ret;
@@ -1331,8 +1325,6 @@ int mt7996_register_device(struct mt7996_dev *dev)
if (ret)
return ret;

- ieee80211_queue_work(mt76_hw(dev), &dev->init_work);
-
ret = mt7996_register_phy(dev, mt7996_phy2(dev), MT_BAND1);
if (ret)
return ret;
@@ -1341,13 +1333,24 @@ int mt7996_register_device(struct mt7996_dev *dev)
if (ret)
return ret;

+ ieee80211_queue_work(mt76_hw(dev), &dev->init_work);
+
dev->recovery.hw_init_done = true;

ret = mt7996_init_debugfs(&dev->phy);
if (ret)
- return ret;
+ goto error;

- return mt7996_coredump_register(dev);
+ ret = mt7996_coredump_register(dev);
+ if (ret)
+ goto error;
+
+ return 0;
+
+error:
+ cancel_work_sync(&dev->init_work);
+
+ return ret;
}

void mt7996_unregister_device(struct mt7996_dev *dev)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
index ea2f08614ba3..d56e63cb11ff 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
@@ -2964,9 +2964,10 @@ mt7996_mcu_init_rx_airtime(struct mt7996_dev *dev)
{
struct uni_header hdr = {};
struct sk_buff *skb;
- int len, num;
+ int len, num, i;

- num = 2 + 2 * (dev->dbdc_support + dev->tbtc_support);
+ num = 2 + 2 * (mt7996_band_valid(dev, MT_BAND1) +
+ mt7996_band_valid(dev, MT_BAND2));
len = sizeof(hdr) + num * sizeof(struct vow_rx_airtime);
skb = mt76_mcu_msg_alloc(&dev->mt76, NULL, len);
if (!skb)
@@ -2974,13 +2975,10 @@ mt7996_mcu_init_rx_airtime(struct mt7996_dev *dev)

skb_put_data(skb, &hdr, sizeof(hdr));

- mt7996_add_rx_airtime_tlv(skb, dev->mt76.phy.band_idx);
-
- if (dev->dbdc_support)
- mt7996_add_rx_airtime_tlv(skb, MT_BAND1);
-
- if (dev->tbtc_support)
- mt7996_add_rx_airtime_tlv(skb, MT_BAND2);
+ for (i = 0; i < __MT_MAX_BAND; i++) {
+ if (mt7996_band_valid(dev, i))
+ mt7996_add_rx_airtime_tlv(skb, i);
+ }

return mt76_mcu_skb_send_msg(&dev->mt76, skb,
MCU_WM_UNI_CMD(VOW), true);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
index 0ba00e4166d9..aefd09c7d6e6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
@@ -280,8 +280,6 @@ struct mt7996_dev {

u32 hw_pattern;

- bool dbdc_support:1;
- bool tbtc_support:1;
bool flash_mode:1;
bool has_eht:1;
bool has_rro:1;
@@ -393,6 +391,17 @@ mt7996_phy3(struct mt7996_dev *dev)
return __mt7996_phy(dev, MT_BAND2);
}

+static inline bool
+mt7996_band_valid(struct mt7996_dev *dev, u8 band)
+{
+ /* tri-band support */
+ if (band <= MT_BAND2 &&
+ mt76_get_field(dev, MT_PAD_GPIO, MT_PAD_GPIO_ADIE_COMB) <= 1)
+ return true;
+
+ return band == MT_BAND0 || band == MT_BAND2;
+}
+
extern const struct ieee80211_ops mt7996_ops;
extern struct pci_driver mt7996_pci_driver;
extern struct pci_driver mt7996_hif_driver;
@@ -494,7 +503,8 @@ int mt7996_mcu_wed_rro_reset_sessions(struct mt7996_dev *dev, u16 id);

static inline u8 mt7996_max_interface_num(struct mt7996_dev *dev)
{
- return MT7996_MAX_INTERFACES * (1 + dev->dbdc_support + dev->tbtc_support);
+ return MT7996_MAX_INTERFACES * (1 + mt7996_band_valid(dev, MT_BAND1) +
+ mt7996_band_valid(dev, MT_BAND2));
}

static inline u16 mt7996_wtbl_size(struct mt7996_dev *dev)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/regs.h b/drivers/net/wireless/mediatek/mt76/mt7996/regs.h
index 6102df912741..d8904cbc2856 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/regs.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/regs.h
@@ -629,6 +629,9 @@ enum base_rev {
#define MT_TOP_MISC MT_TOP(0xf0)
#define MT_TOP_MISC_FW_STATE GENMASK(2, 0)

+#define MT_PAD_GPIO 0x700056f0
+#define MT_PAD_GPIO_ADIE_COMB GENMASK(16, 15)
+
#define MT_HW_REV 0x70010204
#define MT_HW_REV1 0x8a00

--
2.39.2