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- =======================================================================
- README for 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.
- =====================
- 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:
- /lib/firmware/sd8688_helper.bin
- /lib/firmware/sd8688.bin
- The images can be downloaded from:
- git.infradead.org/users/dwmw2/linux-firmware.git/libertas/
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