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Documentation / btmrvl.txt




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Based on kernel version 4.13.3. Page generated on 2017-09-23 13:54 EST.

1	=============
2	btmrvl driver
3	=============
4	
5	All commands are used via debugfs interface.
6	
7	Set/get driver configurations
8	=============================
9	
10	Path:	/debug/btmrvl/config/
11	
12	gpiogap=[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	
34	psmode=[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	
53	hsmode=[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	
72	Get driver status
73	=================
74	
75	Path:	/debug/btmrvl/status/
76	
77	Usage::
78	
79		cat /debug/btmrvl/status/<args>
80	
81	where the args are:
82	
83	curpsmode
84		This command displays current auto sleep status.
85	
86	psstate
87		This command display the power save state.
88	
89	hsstate
90		This command display the host sleep state.
91	
92	txdnldrdy
93		This command displays the value of Tx download ready flag.
94	
95	Issuing a raw hci command
96	=========================
97	
98	Use hcitool to issue raw hci command, refer to hcitool manual
99	
100	Usage::
101	
102		Hcitool cmd <ogf> <ocf> [Parameters]
103	
104	Interface 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	
113	SD8688 firmware
114	===============
115	
116	Images:
117	
118	- /lib/firmware/sd8688_helper.bin
119	- /lib/firmware/sd8688.bin
120	
121	
122	The images can be downloaded from:
123	
124	git.infradead.org/users/dwmw2/linux-firmware.git/libertas/
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