[v5,03/17] mt76: mt7921: refactor mcu.c to be bus independent

Message ID	80ab22ce536b28008d40a3fe7a73782766877af4.1634598341.git.objelf@gmail.com (mailing list archive)
State	Accepted
Delegated to:	Felix Fietkau
Headers	show Return-Path: <linux-wireless-owner@kernel.org> From: <sean.wang@mediatek.com> To: <nbd@nbd.name>, <lorenzo.bianconi@redhat.com> CC: <sean.wang@mediatek.com>, <Soul.Huang@mediatek.com>, <YN.Chen@mediatek.com>, <Leon.Yen@mediatek.com>, <Eric-SY.Chang@mediatek.com>, <Mark-YW.Chen@mediatek.com>, <Deren.Wu@mediatek.com>, <km.lin@mediatek.com>, <robin.chiu@mediatek.com>, <Eddie.Chen@mediatek.com>, <ch.yeh@mediatek.com>, <posh.sun@mediatek.com>, <ted.huang@mediatek.com>, <Eric.Liang@mediatek.com>, <Stella.Chang@mediatek.com>, <Tom.Chou@mediatek.com>, <steve.lee@mediatek.com>, <jsiuda@google.com>, <frankgor@google.com>, <jemele@google.com>, <abhishekpandit@google.com>, <shawnku@google.com>, <linux-wireless@vger.kernel.org>, <linux-mediatek@lists.infradead.org> Subject: [PATCH v5 03/17] mt76: mt7921: refactor mcu.c to be bus independent Date: Tue, 19 Oct 2021 07:11:33 +0800 Message-ID: <80ab22ce536b28008d40a3fe7a73782766877af4.1634598341.git.objelf@gmail.com> In-Reply-To: <cover.1634598341.git.objelf@gmail.com> References: <cover.1634598341.git.objelf@gmail.com> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk
Series	Add MT7921 SDIO WiFi support \| expand [v5,00/17] Add MT7921 SDIO WiFi support [v5,01/17] mt76: mt7921: refactor mac.c to be bus independent [v5,02/17] mt76: mt7921: refactor dma.c to be pcie specific [v5,03/17] mt76: mt7921: refactor mcu.c to be bus independent [v5,04/17] mt76: mt7921: refactor init.c to be bus independent [v5,05/17] mt76: mt7921: add MT7921_COMMON module [v5,06/17] mt76: connac: move mcu reg access utility routines in mt76_connac_lib module [v5,07/17] mt76: mt7663s: rely on mcu reg access utility [v5,08/17] mt76: mt7921: make all event parser reusable between mt7921s and mt7921e [v5,09/17] mt76: mt7921: use physical addr to unify register access [v5,10/17] mt76: sdio: move common code in mt76_sdio module [v5,11/17] mt76: sdio: introduce parse_irq callback [v5,12/17] mt76: sdio: extend sdio module to support CONNAC2 [v5,13/17] mt76: connac: extend mcu_get_nic_capability [v5,14/17] mt76: mt7921: rely on mcu_get_nic_capability [v5,15/17] mt76: mt7921: refactor mt7921_mcu_send_message [v5,16/17] mt76: mt7921: introduce mt7921s support [v5,17/17] mt76: mt7921s: add reset support

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 4ef54343cef3..7956a57510c4 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); tasklet_disable(&dev->irq_tasklet); diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c index eb27d8ab4a8b..bb6f0cea93bb 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c @@ -1276,12 +1276,9 @@ 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 457365f40d30..54a2c846fd0d 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); } @@ -1280,35 +1244,6 @@ 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; @@ -1334,29 +1269,14 @@ 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 fb19cff4a697..171aa2daef4d 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 312e42db40bd..f9547d27356e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c @@ -282,6 +282,8 @@ 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; +}

[v5,03/17] mt76: mt7921: refactor mcu.c to be bus independent

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Patch