[3/9] mt76: usb: introduce __mt76u_init utility routine

Message ID	4f32408172a7dfbd0da27e0c7ed37306ae9006eb.1646235785.git.lorenzo@kernel.org
State	Superseded
Headers	show Return-Path: <linux-wireless-owner@kernel.org> From: Lorenzo Bianconi <lorenzo@kernel.org> To: nbd@nbd.name Cc: linux-wireless@vger.kernel.org, lorenzo.bianconi@redhat.com, sean.wang@mediatek.com, deren.wu@mediatek.com, linux-mediatek@lists.infradead.org Subject: [PATCH 3/9] mt76: usb: introduce __mt76u_init utility routine Date: Wed, 2 Mar 2022 16:48:07 +0100 Message-Id: <4f32408172a7dfbd0da27e0c7ed37306ae9006eb.1646235785.git.lorenzo@kernel.org> In-Reply-To: <cover.1646235785.git.lorenzo@kernel.org> References: <cover.1646235785.git.lorenzo@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	introduce mt7921u driver \| expand [0/9] introduce mt7921u driver [1/9] mt76: usb: add req_type to ___mt76u_rr signature [2/9] mt76: usb: add req_type to ___mt76u_wr signature [3/9] mt76: usb: introduce __mt76u_init utility routine [4/9] mt76: mt7921: disable runtime pm for usb [5/9] mt76: mt7921: update mt7921_skb_add_usb_sdio_hdr to support usb [6/9] mt76: mt7921: move mt7921_usb_sdio_tx_prepare_skb in common mac code [7/9] mt76: mt7921: move mt7921_usb_sdio_tx_complete_skb in common mac code. [8/9] mt76: mt7921: move mt7921_usb_sdio_tx_status_data in mac common code. [9/9] mt76: mt7921: add mt7921u driver

diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index 5e10fe156926..9b2aee9b6ad7 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -1274,13 +1274,21 @@ mt76u_bulk_msg(struct mt76_dev *dev, void *data, int len, int *actual_len, void mt76_ethtool_worker(struct mt76_ethtool_worker_info *wi, struct mt76_sta_stats *stats); int mt76_skb_adjust_pad(struct sk_buff *skb, int pad); +int __mt76u_vendor_request(struct mt76_dev *dev, u8 req, u8 req_type, + u16 val, u16 offset, void *buf, size_t len); int mt76u_vendor_request(struct mt76_dev *dev, u8 req, u8 req_type, u16 val, u16 offset, void *buf, size_t len); void mt76u_single_wr(struct mt76_dev *dev, const u8 req, const u16 offset, const u32 val); -int mt76u_init(struct mt76_dev *dev, struct usb_interface *intf, - bool ext); +void mt76u_read_copy(struct mt76_dev *dev, u32 offset, + void *data, int len); +u32 ___mt76u_rr(struct mt76_dev *dev, u8 req, u8 req_type, u32 addr); +void ___mt76u_wr(struct mt76_dev *dev, u8 req, u8 req_type, + u32 addr, u32 val); +int __mt76u_init(struct mt76_dev *dev, struct usb_interface *intf, + struct mt76_bus_ops *ops); +int mt76u_init(struct mt76_dev *dev, struct usb_interface *intf); int mt76u_alloc_mcu_queue(struct mt76_dev *dev); int mt76u_alloc_queues(struct mt76_dev *dev); void mt76u_stop_tx(struct mt76_dev *dev); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb.c index aeeba7c72f14..967641aebf5f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/usb.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb.c @@ -21,6 +21,64 @@ static const struct usb_device_id mt7615_device_table[] = { { }, }; +static u32 mt7663u_rr(struct mt76_dev *dev, u32 addr) +{ + u32 ret; + + mutex_lock(&dev->usb.usb_ctrl_mtx); + ret = ___mt76u_rr(dev, MT_VEND_READ_EXT, + USB_DIR_IN | USB_TYPE_VENDOR, addr); + mutex_unlock(&dev->usb.usb_ctrl_mtx); + + return ret; +} + +static void mt7663u_wr(struct mt76_dev *dev, u32 addr, u32 val) +{ + mutex_lock(&dev->usb.usb_ctrl_mtx); + ___mt76u_wr(dev, MT_VEND_WRITE_EXT, + USB_DIR_OUT | USB_TYPE_VENDOR, addr, val); + mutex_unlock(&dev->usb.usb_ctrl_mtx); +} + +static u32 mt7663u_rmw(struct mt76_dev *dev, u32 addr, + u32 mask, u32 val) +{ + mutex_lock(&dev->usb.usb_ctrl_mtx); + val |= ___mt76u_rr(dev, MT_VEND_READ_EXT, + USB_DIR_IN | USB_TYPE_VENDOR, addr) & ~mask; + ___mt76u_wr(dev, MT_VEND_WRITE_EXT, + USB_DIR_OUT | USB_TYPE_VENDOR, addr, val); + mutex_unlock(&dev->usb.usb_ctrl_mtx); + + return val; +} + +static void mt7663u_copy(struct mt76_dev *dev, u32 offset, + const void *data, int len) +{ + struct mt76_usb *usb = &dev->usb; + int ret, i = 0, batch_len; + const u8 *val = data; + + len = round_up(len, 4); + + mutex_lock(&usb->usb_ctrl_mtx); + while (i < len) { + batch_len = min_t(int, usb->data_len, len - i); + memcpy(usb->data, val + i, batch_len); + ret = __mt76u_vendor_request(dev, MT_VEND_WRITE_EXT, + USB_DIR_OUT | USB_TYPE_VENDOR, + (offset + i) >> 16, offset + i, + usb->data, batch_len); + if (ret < 0) + break; + + i += batch_len; + } + mutex_unlock(&usb->usb_ctrl_mtx); +} + static void mt7663u_stop(struct ieee80211_hw *hw) { struct mt7615_phy *phy = mt7615_hw_phy(hw); @@ -66,6 +124,14 @@ static int mt7663u_probe(struct usb_interface *usb_intf, .sta_remove = mt7615_mac_sta_remove, .update_survey = mt7615_update_channel, }; + static struct mt76_bus_ops bus_ops = { + .rr = mt7663u_rr, + .wr = mt7663u_wr, + .rmw = mt7663u_rmw, + .read_copy = mt76u_read_copy, + .write_copy = mt7663u_copy, + .type = MT76_BUS_USB, + }; struct usb_device *udev = interface_to_usbdev(usb_intf); struct ieee80211_ops *ops; struct mt7615_dev *dev; @@ -92,7 +158,7 @@ static int mt7663u_probe(struct usb_interface *usb_intf, INIT_WORK(&dev->mcu_work, mt7663u_init_work); dev->reg_map = mt7663_usb_sdio_reg_map; dev->ops = ops; - ret = mt76u_init(mdev, usb_intf, true); + ret = __mt76u_init(mdev, usb_intf, &bus_ops); if (ret < 0) goto error; diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c index 436daf6d6d86..0422c332354a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c @@ -245,7 +245,7 @@ static int mt76x0u_probe(struct usb_interface *usb_intf, usb_set_intfdata(usb_intf, dev); mt76x02u_init_mcu(mdev); - ret = mt76u_init(mdev, usb_intf, false); + ret = mt76u_init(mdev, usb_intf); if (ret) goto err; diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c index 2575369e44e2..55068f3252ef 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c @@ -57,7 +57,7 @@ static int mt76x2u_probe(struct usb_interface *intf, usb_set_intfdata(intf, dev); mt76x02u_init_mcu(mdev); - err = mt76u_init(mdev, intf, false); + err = mt76u_init(mdev, intf); if (err < 0) goto err; diff --git a/drivers/net/wireless/mediatek/mt76/usb.c b/drivers/net/wireless/mediatek/mt76/usb.c index 4b7a816f1b93..a85e192c9d59 100644 --- a/drivers/net/wireless/mediatek/mt76/usb.c +++ b/drivers/net/wireless/mediatek/mt76/usb.c @@ -15,9 +15,8 @@ static bool disable_usb_sg; module_param_named(disable_usb_sg, disable_usb_sg, bool, 0644); MODULE_PARM_DESC(disable_usb_sg, "Disable usb scatter-gather support"); -static int __mt76u_vendor_request(struct mt76_dev *dev, u8 req, - u8 req_type, u16 val, u16 offset, - void *buf, size_t len) +int __mt76u_vendor_request(struct mt76_dev *dev, u8 req, u8 req_type, + u16 val, u16 offset, void *buf, size_t len) { struct usb_interface *uintf = to_usb_interface(dev->dev); struct usb_device *udev = interface_to_usbdev(uintf); @@ -45,6 +44,7 @@ static int __mt76u_vendor_request(struct mt76_dev *dev, u8 req, req, offset, ret); return ret; } +EXPORT_SYMBOL_GPL(__mt76u_vendor_request); int mt76u_vendor_request(struct mt76_dev *dev, u8 req, u8 req_type, u16 val, u16 offset, @@ -62,8 +62,7 @@ int mt76u_vendor_request(struct mt76_dev *dev, u8 req, } EXPORT_SYMBOL_GPL(mt76u_vendor_request); -static u32 ___mt76u_rr(struct mt76_dev *dev, u8 req, u8 req_type, - u32 addr) +u32 ___mt76u_rr(struct mt76_dev *dev, u8 req, u8 req_type, u32 addr) { struct mt76_usb *usb = &dev->usb; u32 data = ~0; @@ -77,6 +76,7 @@ static u32 ___mt76u_rr(struct mt76_dev *dev, u8 req, u8 req_type, return data; } +EXPORT_SYMBOL_GPL(___mt76u_rr); static u32 __mt76u_rr(struct mt76_dev *dev, u32 addr) { @@ -109,20 +109,8 @@ static u32 mt76u_rr(struct mt76_dev *dev, u32 addr) return ret; } -static u32 mt76u_rr_ext(struct mt76_dev *dev, u32 addr) -{ - u32 ret; - - mutex_lock(&dev->usb.usb_ctrl_mtx); - ret = ___mt76u_rr(dev, MT_VEND_READ_EXT, - USB_DIR_IN | USB_TYPE_VENDOR, addr); - mutex_unlock(&dev->usb.usb_ctrl_mtx); - - return ret; -} - -static void ___mt76u_wr(struct mt76_dev *dev, u8 req, u8 req_type, - u32 addr, u32 val) +void ___mt76u_wr(struct mt76_dev *dev, u8 req, u8 req_type, + u32 addr, u32 val) { struct mt76_usb *usb = &dev->usb; @@ -131,6 +119,7 @@ static void ___mt76u_wr(struct mt76_dev *dev, u8 req, u8 req_type, addr, usb->data, sizeof(__le32)); trace_usb_reg_wr(dev, addr, val); } +EXPORT_SYMBOL_GPL(___mt76u_wr); static void __mt76u_wr(struct mt76_dev *dev, u32 addr, u32 val) { @@ -155,14 +144,6 @@ static void mt76u_wr(struct mt76_dev *dev, u32 addr, u32 val) mutex_unlock(&dev->usb.usb_ctrl_mtx); } -static void mt76u_wr_ext(struct mt76_dev *dev, u32 addr, u32 val) -{ - mutex_lock(&dev->usb.usb_ctrl_mtx); - ___mt76u_wr(dev, MT_VEND_WRITE_EXT, - USB_DIR_OUT | USB_TYPE_VENDOR, addr, val); - mutex_unlock(&dev->usb.usb_ctrl_mtx); -} - static u32 mt76u_rmw(struct mt76_dev *dev, u32 addr, u32 mask, u32 val) { @@ -174,19 +155,6 @@ static u32 mt76u_rmw(struct mt76_dev *dev, u32 addr, return val; } -static u32 mt76u_rmw_ext(struct mt76_dev *dev, u32 addr, - u32 mask, u32 val) -{ - mutex_lock(&dev->usb.usb_ctrl_mtx); - val |= ___mt76u_rr(dev, MT_VEND_READ_EXT, - USB_DIR_IN | USB_TYPE_VENDOR, addr) & ~mask; - ___mt76u_wr(dev, MT_VEND_WRITE_EXT, - USB_DIR_OUT | USB_TYPE_VENDOR, addr, val); - mutex_unlock(&dev->usb.usb_ctrl_mtx); - - return val; -} - static void mt76u_copy(struct mt76_dev *dev, u32 offset, const void *data, int len) { @@ -219,33 +187,8 @@ static void mt76u_copy(struct mt76_dev *dev, u32 offset, mutex_unlock(&usb->usb_ctrl_mtx); } -static void mt76u_copy_ext(struct mt76_dev *dev, u32 offset, - const void *data, int len) -{ - struct mt76_usb *usb = &dev->usb; - int ret, i = 0, batch_len; - const u8 *val = data; - - len = round_up(len, 4); - mutex_lock(&usb->usb_ctrl_mtx); - while (i < len) { - batch_len = min_t(int, usb->data_len, len - i); - memcpy(usb->data, val + i, batch_len); - ret = __mt76u_vendor_request(dev, MT_VEND_WRITE_EXT, - USB_DIR_OUT | USB_TYPE_VENDOR, - (offset + i) >> 16, offset + i, - usb->data, batch_len); - if (ret < 0) - break; - - i += batch_len; - } - mutex_unlock(&usb->usb_ctrl_mtx); -} - -static void -mt76u_read_copy_ext(struct mt76_dev *dev, u32 offset, - void *data, int len) +void mt76u_read_copy(struct mt76_dev *dev, u32 offset, + void *data, int len) { struct mt76_usb *usb = &dev->usb; int i = 0, batch_len, ret; @@ -267,6 +210,7 @@ mt76u_read_copy_ext(struct mt76_dev *dev, u32 offset, } mutex_unlock(&usb->usb_ctrl_mtx); } +EXPORT_SYMBOL_GPL(mt76u_read_copy); void mt76u_single_wr(struct mt76_dev *dev, const u8 req, const u16 offset, const u32 val) @@ -1115,24 +1059,13 @@ static const struct mt76_queue_ops usb_queue_ops = { .kick = mt76u_tx_kick, }; -int mt76u_init(struct mt76_dev *dev, - struct usb_interface *intf, bool ext) +int __mt76u_init(struct mt76_dev *dev, struct usb_interface *intf, + struct mt76_bus_ops *ops) { - static struct mt76_bus_ops mt76u_ops = { - .read_copy = mt76u_read_copy_ext, - .wr_rp = mt76u_wr_rp, - .rd_rp = mt76u_rd_rp, - .type = MT76_BUS_USB, - }; struct usb_device *udev = interface_to_usbdev(intf); struct mt76_usb *usb = &dev->usb; int err; - mt76u_ops.rr = ext ? mt76u_rr_ext : mt76u_rr; - mt76u_ops.wr = ext ? mt76u_wr_ext : mt76u_wr; - mt76u_ops.rmw = ext ? mt76u_rmw_ext : mt76u_rmw; - mt76u_ops.write_copy = ext ? mt76u_copy_ext : mt76u_copy; - INIT_WORK(&usb->stat_work, mt76u_tx_status_data); usb->data_len = usb_maxpacket(udev, usb_sndctrlpipe(udev, 0), 1); @@ -1144,7 +1077,7 @@ int mt76u_init(struct mt76_dev *dev, return -ENOMEM; mutex_init(&usb->usb_ctrl_mtx); - dev->bus = &mt76u_ops; + dev->bus = ops; dev->queue_ops = &usb_queue_ops; dev_set_drvdata(&udev->dev, dev); @@ -1170,6 +1103,23 @@ int mt76u_init(struct mt76_dev *dev, return 0; } +EXPORT_SYMBOL_GPL(__mt76u_init); + +int mt76u_init(struct mt76_dev *dev, struct usb_interface *intf) +{ + static struct mt76_bus_ops bus_ops = { + .rr = mt76u_rr, + .wr = mt76u_wr, + .rmw = mt76u_rmw, + .read_copy = mt76u_read_copy, + .write_copy = mt76u_copy, + .wr_rp = mt76u_wr_rp, + .rd_rp = mt76u_rd_rp, + .type = MT76_BUS_USB, + }; + + return __mt76u_init(dev, intf, &bus_ops); +} EXPORT_SYMBOL_GPL(mt76u_init); MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");

[3/9] mt76: usb: introduce __mt76u_init utility routine

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