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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/Documentation/btmrvl.txt
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=======================================================================

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		README for btmrvl driver

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=======================================================================

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All commands are used via debugfs interface.

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=====================

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Set/get driver configurations:

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Path:	/debug/btmrvl/config/

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gpiogap=[n]

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hscfgcmd

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	These commands are used to configure the host sleep parameters.

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	bit 8:0  -- Gap

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	bit 16:8 -- GPIO

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	where GPIO is the pin number of GPIO used to wake up the host.

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	It could be any valid GPIO pin# (e.g. 0-7) or 0xff (SDIO interface

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	wakeup will be used instead).

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	where Gap is the gap in milli seconds between wakeup signal and

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	wakeup event, or 0xff for special host sleep setting.

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	Usage:

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		# Use SDIO interface to wake up the host and set GAP to 0x80:

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		echo 0xff80 > /debug/btmrvl/config/gpiogap

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		echo 1 > /debug/btmrvl/config/hscfgcmd

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		# Use GPIO pin #3 to wake up the host and set GAP to 0xff:

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		echo 0x03ff >  /debug/btmrvl/config/gpiogap

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		echo 1 > /debug/btmrvl/config/hscfgcmd

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psmode=[n]

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pscmd

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	These commands are used to enable/disable auto sleep mode

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	where the option is:

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			1 	-- Enable auto sleep mode

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			0 	-- Disable auto sleep mode

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	Usage:

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		# Enable auto sleep mode

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		echo 1 > /debug/btmrvl/config/psmode

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		echo 1 > /debug/btmrvl/config/pscmd

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		# Disable auto sleep mode

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		echo 0 > /debug/btmrvl/config/psmode

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		echo 1 > /debug/btmrvl/config/pscmd

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hsmode=[n]

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hscmd

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	These commands are used to enable host sleep or wake up firmware

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	where the option is:

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			1	-- Enable host sleep

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			0	-- Wake up firmware

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	Usage:

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		# Enable host sleep

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		echo 1 > /debug/btmrvl/config/hsmode

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		echo 1 > /debug/btmrvl/config/hscmd

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		# Wake up firmware

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		echo 0 > /debug/btmrvl/config/hsmode

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		echo 1 > /debug/btmrvl/config/hscmd

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======================

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Get driver status:

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Path:	/debug/btmrvl/status/

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Usage:

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	cat /debug/btmrvl/status/<args>

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where the args are:

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curpsmode

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	This command displays current auto sleep status.

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psstate

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	This command display the power save state.

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hsstate

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	This command display the host sleep state.

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txdnldrdy

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	This command displays the value of Tx download ready flag.

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=====================

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Use hcitool to issue raw hci command, refer to hcitool manual

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	Usage: Hcitool cmd <ogf> <ocf> [Parameters]

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	Interface Control Command

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	hcitool cmd 0x3f 0x5b 0xf5 0x01 0x00    --Enable All interface

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	hcitool cmd 0x3f 0x5b 0xf5 0x01 0x01    --Enable Wlan interface

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	hcitool cmd 0x3f 0x5b 0xf5 0x01 0x02    --Enable BT interface

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	hcitool cmd 0x3f 0x5b 0xf5 0x00 0x00    --Disable All interface

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	hcitool cmd 0x3f 0x5b 0xf5 0x00 0x01    --Disable Wlan interface

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	hcitool cmd 0x3f 0x5b 0xf5 0x00 0x02    --Disable BT interface

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=======================================================================

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SD8688 firmware:

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/lib/firmware/sd8688_helper.bin

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/lib/firmware/sd8688.bin

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The images can be downloaded from:

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git.infradead.org/users/dwmw2/linux-firmware.git/libertas/

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