1=============
2btmrvl driver
3=============
4
5All commands are used via debugfs interface.
6
7Set/get driver configurations
8=============================
9
10Path:	/debug/btmrvl/config/
11
12gpiogap=[n], hscfgcmd
13	These commands are used to configure the host sleep parameters::
14	bit 8:0  -- Gap
15	bit 16:8 -- GPIO
16
17	where GPIO is the pin number of GPIO used to wake up the host.
18	It could be any valid GPIO pin# (e.g. 0-7) or 0xff (SDIO interface
19	wakeup will be used instead).
20
21	where Gap is the gap in milli seconds between wakeup signal and
22	wakeup event, or 0xff for special host sleep setting.
23
24	Usage::
25
26		# Use SDIO interface to wake up the host and set GAP to 0x80:
27		echo 0xff80 > /debug/btmrvl/config/gpiogap
28		echo 1 > /debug/btmrvl/config/hscfgcmd
29
30		# Use GPIO pin #3 to wake up the host and set GAP to 0xff:
31		echo 0x03ff >  /debug/btmrvl/config/gpiogap
32		echo 1 > /debug/btmrvl/config/hscfgcmd
33
34psmode=[n], pscmd
35	These commands are used to enable/disable auto sleep mode
36
37	where the option is::
38
39			1 	-- Enable auto sleep mode
40			0 	-- Disable auto sleep mode
41
42	Usage::
43
44		# Enable auto sleep mode
45		echo 1 > /debug/btmrvl/config/psmode
46		echo 1 > /debug/btmrvl/config/pscmd
47
48		# Disable auto sleep mode
49		echo 0 > /debug/btmrvl/config/psmode
50		echo 1 > /debug/btmrvl/config/pscmd
51
52
53hsmode=[n], hscmd
54	These commands are used to enable host sleep or wake up firmware
55
56	where the option is::
57
58			1	-- Enable host sleep
59			0	-- Wake up firmware
60
61	Usage::
62
63		# Enable host sleep
64		echo 1 > /debug/btmrvl/config/hsmode
65		echo 1 > /debug/btmrvl/config/hscmd
66
67		# Wake up firmware
68		echo 0 > /debug/btmrvl/config/hsmode
69		echo 1 > /debug/btmrvl/config/hscmd
70
71
72Get driver status
73=================
74
75Path:	/debug/btmrvl/status/
76
77Usage::
78
79	cat /debug/btmrvl/status/<args>
80
81where the args are:
82
83curpsmode
84	This command displays current auto sleep status.
85
86psstate
87	This command display the power save state.
88
89hsstate
90	This command display the host sleep state.
91
92txdnldrdy
93	This command displays the value of Tx download ready flag.
94
95Issuing a raw hci command
96=========================
97
98Use hcitool to issue raw hci command, refer to hcitool manual
99
100Usage::
101
102	Hcitool cmd <ogf> <ocf> [Parameters]
103
104Interface Control Command::
105
106	hcitool cmd 0x3f 0x5b 0xf5 0x01 0x00    --Enable All interface
107	hcitool cmd 0x3f 0x5b 0xf5 0x01 0x01    --Enable Wlan interface
108	hcitool cmd 0x3f 0x5b 0xf5 0x01 0x02    --Enable BT interface
109	hcitool cmd 0x3f 0x5b 0xf5 0x00 0x00    --Disable All interface
110	hcitool cmd 0x3f 0x5b 0xf5 0x00 0x01    --Disable Wlan interface
111	hcitool cmd 0x3f 0x5b 0xf5 0x00 0x02    --Disable BT interface
112
113SD8688 firmware
114===============
115
116Images:
117
118- /lib/firmware/sd8688_helper.bin
119- /lib/firmware/sd8688.bin
120
121
122The images can be downloaded from:
123
124git.infradead.org/users/dwmw2/linux-firmware.git/libertas/
125