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diff --git a/Documentation/admin-guide/btmrvl.rst b/Documentation/admin-guide/btmrvl.rst new file mode 100644 index 000000000..ec57740ea --- /dev/null +++ b/Documentation/admin-guide/btmrvl.rst @@ -0,0 +1,124 @@ +============= +btmrvl driver +============= + +All commands are used via debugfs interface. + +Set/get driver configurations +============================= + +Path: /debug/btmrvl/config/ + +gpiogap=[n], hscfgcmd + These commands are used to configure the host sleep parameters:: + bit 8:0 -- Gap + bit 16:8 -- GPIO + + where GPIO is the pin number of GPIO used to wake up the host. + It could be any valid GPIO pin# (e.g. 0-7) or 0xff (SDIO interface + wakeup will be used instead). + + where Gap is the gap in milli seconds between wakeup signal and + wakeup event, or 0xff for special host sleep setting. + + Usage:: + + # Use SDIO interface to wake up the host and set GAP to 0x80: + echo 0xff80 > /debug/btmrvl/config/gpiogap + echo 1 > /debug/btmrvl/config/hscfgcmd + + # Use GPIO pin #3 to wake up the host and set GAP to 0xff: + echo 0x03ff > /debug/btmrvl/config/gpiogap + echo 1 > /debug/btmrvl/config/hscfgcmd + +psmode=[n], pscmd + These commands are used to enable/disable auto sleep mode + + where the option is:: + + 1 -- Enable auto sleep mode + 0 -- Disable auto sleep mode + + Usage:: + + # Enable auto sleep mode + echo 1 > /debug/btmrvl/config/psmode + echo 1 > /debug/btmrvl/config/pscmd + + # Disable auto sleep mode + echo 0 > /debug/btmrvl/config/psmode + echo 1 > /debug/btmrvl/config/pscmd + + +hsmode=[n], hscmd + These commands are used to enable host sleep or wake up firmware + + where the option is:: + + 1 -- Enable host sleep + 0 -- Wake up firmware + + Usage:: + + # Enable host sleep + echo 1 > /debug/btmrvl/config/hsmode + echo 1 > /debug/btmrvl/config/hscmd + + # Wake up firmware + echo 0 > /debug/btmrvl/config/hsmode + echo 1 > /debug/btmrvl/config/hscmd + + +Get driver status +================= + +Path: /debug/btmrvl/status/ + +Usage:: + + cat /debug/btmrvl/status/<args> + +where the args are: + +curpsmode + This command displays current auto sleep status. + +psstate + This command display the power save state. + +hsstate + This command display the host sleep state. + +txdnldrdy + This command displays the value of Tx download ready flag. + +Issuing a raw hci command +========================= + +Use hcitool to issue raw hci command, refer to hcitool manual + +Usage:: + + Hcitool cmd <ogf> <ocf> [Parameters] + +Interface Control Command:: + + hcitool cmd 0x3f 0x5b 0xf5 0x01 0x00 --Enable All interface + hcitool cmd 0x3f 0x5b 0xf5 0x01 0x01 --Enable Wlan interface + hcitool cmd 0x3f 0x5b 0xf5 0x01 0x02 --Enable BT interface + hcitool cmd 0x3f 0x5b 0xf5 0x00 0x00 --Disable All interface + hcitool cmd 0x3f 0x5b 0xf5 0x00 0x01 --Disable Wlan interface + hcitool cmd 0x3f 0x5b 0xf5 0x00 0x02 --Disable BT interface + +SD8688 firmware +=============== + +Images: + +- /lib/firmware/sd8688_helper.bin +- /lib/firmware/sd8688.bin + + +The images can be downloaded from: + +git.infradead.org/users/dwmw2/linux-firmware.git/libertas/ |