Bluetooth: mediatek: Add protocol support for MediaTek USB devices

PATCH Superseded [email protected] 1 participant 3 messages Sep 3, 2018

Subsystems (2)

Bluetooth drivers Arm MediaTek

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2018-09-03 14:08 UTC #0 lore raw

v4 cover Bluetooth: mediatek: Add protocol support for MediaTek USB devices

From: Sean Wang <[email protected]>

v4:
* use new BTUSB_TX_WAIT_VND_EVT instead of BTMTKUSB_TX_WAIT_VND_EVT to avoid definition conflict and to fix bulk data transfer fails.
* use the bluetooth-next as the base

v3:
add fixes and enhancements based on [1]
* reuse flags and evt_skb btusb already had
* add ctrl_anchor and the corresponding handling
* apply mtk specific recv function
* add more comments explaining wmt ctrl urbs behavior.

[1]
http://lists.infradead.org/pipermail/linux-mediatek/2018-August/014724.html

v2:

add fixes and enhancements based on [1]
* include /sys/kernel/debug/usb/devices portion in the commit message.
* turn default into n for config BT_HCIBTUSB_MTK in Kconfig
* only add MediaTek support to btusb.c
* drop cmd_sync callback usage
* use __hci_cmd_send to send WMT commands
* add wait event handling similar to what is being done in btmtkuart.c
* submit a control IN URB similar to interrupt IN URB on demand for the WMT commands during setup
* add cosmetic changes

[1]
http://lists.infradead.org/pipermail/linux-mediatek/2018-August/014650.html
http://lists.infradead.org/pipermail/linux-mediatek/2018-August/014656.html

v1:

This adds the support of enabling MT7668U and MT7663U Bluetooth function running on the top of btusb driver. The patch also adds a newly created file mtkbt.c able to be reused independently from the transport type such as UART, USB and SDIO.

Sean Wang (2):
Bluetooth: mediatek: Add protocol support for MediaTek MT7668U USB
devices
Bluetooth: mediatek: Add protocol support for MediaTek MT7663U USB
devices

 drivers/bluetooth/Kconfig |  11 +
 drivers/bluetooth/btusb.c | 552 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 563 insertions(+)

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[email protected]

author

2018-09-03 14:08 UTC #1 lore raw

PATCH v4 1/2 Bluetooth: mediatek: Add protocol support for MediaTek MT7668U USB devices

From: Sean Wang <[email protected]>

This adds the support of enabling MT7668U Bluetooth function running on the top of btusb driver.

The information in /sys/kernel/debug/usb/devices about the Bluetooth device is listed as the below.

T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=5000 MxCh= 0
D:  Ver= 3.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs=  1
P:  Vendor=0e8d ProdID=7668 Rev= 1.00
S:  Manufacturer=MediaTek Inc.
S:  Product=Wireless_Device
S:  SerialNumber=000000000
C:* #Ifs= 3 Cfg#= 1 Atr=a0 MxPwr=160mA
A:  FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=01
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=125us
E:  Ad=82(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:  If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms

Signed-off-by Sean Wang <[email protected]>

---
 drivers/bluetooth/Kconfig |  11 +
 drivers/bluetooth/btusb.c | 547 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 558 insertions(+)

drivers/bluetooth/Kconfig +11 -0

index 2df11cc..6c34858 100644
@@ -52,6 +52,17 @@ config BT_HCIBTUSB_BCM
 
 	  Say Y here to compile support for Broadcom protocol.
 
+config BT_HCIBTUSB_MTK
+	bool "MediaTek protocol support"
+	depends on BT_HCIBTUSB
+	default n
+	help
+	  The MediaTek protocol support enables firmware download
+	  support and chip initialization for MediaTek Bluetooth
+	  USB controllers.
+
+	  Say Y here to compile support for MediaTek protocol.
+
 config BT_HCIBTUSB_RTL
 	bool "Realtek protocol support"
 	depends on BT_HCIBTUSB

drivers/bluetooth/btusb.c +547 -0

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[email protected]

author

2018-09-03 14:08 UTC #2 lore raw

PATCH v4 2/2 Bluetooth: mediatek: Add protocol support for MediaTek MT7663U USB devices

In reply to [email protected]

From: Sean Wang <[email protected]>

This adds the support of enabling MT7663U Bluetooth function running on the top of btusb driver.

The information in /sys/kernel/debug/usb/devices about the Bluetooth device is listed as the below.

T:  Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  5 Spd=5000 MxCh= 0
D:  Ver= 3.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs=  1
P:  Vendor=0e8d ProdID=7663 Rev= 1.00
S:  Manufacturer=MediaTek Inc.
S:  Product=Wireless_Device
S:  SerialNumber=000000000
C:* #Ifs= 3 Cfg#= 1 Atr=a0 MxPwr=160mA
A:  FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=01
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=125us
E:  Ad=82(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:  If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms

Signed-off-by Sean Wang <[email protected]>

---
 drivers/bluetooth/btusb.c | 5 +++++
 1 file changed, 5 insertions(+)

drivers/bluetooth/btusb.c +5 -0

index c29d12e..fd511a4 100644
@@ -2409,6 +2409,7 @@ static int btusb_shutdown_intel(struct hci_dev *hdev)
 
 #ifdef CONFIG_BT_HCIBTUSB_MTK
 
+#define FIRMWARE_MT7663		"mt7663pr2h.bin"
 #define FIRMWARE_MT7668		"mt7668pr2h.bin"
 
 #define HCI_WMT_MAX_EVENT_SIZE		64

@@ -2837,6 +2838,9 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
 	}
 
 	switch (dev_id) {
+	case 0x7663:
+		fwname = FIRMWARE_MT7663;
+		break;
 	case 0x7668:
 		fwname = FIRMWARE_MT7668;
 		break;

@@ -2932,6 +2936,7 @@ static int btusb_mtk_shutdown(struct hci_dev *hdev)
 	return 0;
 }
 
+MODULE_FIRMWARE(FIRMWARE_MT7663);
 MODULE_FIRMWARE(FIRMWARE_MT7668);
 #endif

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