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Kernel driver for Mellanox systems LEDs
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Provide system LED support for the nex Mellanox systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410",
"msn2410", "msb7800", "msn2740", "msn2100".
Description
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Driver provides the following LEDs for the systems "msx6710", "msx6720",
"msb7700", "msn2700", "msx1410", "msn2410", "msb7800", "msn2740":
- mlxcpld:fan1:green
- mlxcpld:fan1:red
- mlxcpld:fan2:green
- mlxcpld:fan2:red
- mlxcpld:fan3:green
- mlxcpld:fan3:red
- mlxcpld:fan4:green
- mlxcpld:fan4:red
- mlxcpld:psu:green
- mlxcpld:psu:red
- mlxcpld:status:green
- mlxcpld:status:red
"status"
- CPLD reg offset: 0x20
- Bits [3:0]
"psu"
- CPLD reg offset: 0x20
- Bits [7:4]
"fan1"
- CPLD reg offset: 0x21
- Bits [3:0]
"fan2"
- CPLD reg offset: 0x21
- Bits [7:4]
"fan3"
- CPLD reg offset: 0x22
- Bits [3:0]
"fan4"
- CPLD reg offset: 0x22
- Bits [7:4]
Color mask for all the above LEDs:
[bit3,bit2,bit1,bit0] or
[bit7,bit6,bit5,bit4]:
- [0,0,0,0] = LED OFF
- [0,1,0,1] = Red static ON
- [1,1,0,1] = Green static ON
- [0,1,1,0] = Red blink 3Hz
- [1,1,1,0] = Green blink 3Hz
- [0,1,1,1] = Red blink 6Hz
- [1,1,1,1] = Green blink 6Hz
Driver provides the following LEDs for the system "msn2100":
- mlxcpld:fan:green
- mlxcpld:fan:red
- mlxcpld:psu1:green
- mlxcpld:psu1:red
- mlxcpld:psu2:green
- mlxcpld:psu2:red
- mlxcpld:status:green
- mlxcpld:status:red
- mlxcpld:uid:blue
"status"
- CPLD reg offset: 0x20
- Bits [3:0]
"fan"
- CPLD reg offset: 0x21
- Bits [3:0]
"psu1"
- CPLD reg offset: 0x23
- Bits [3:0]
"psu2"
- CPLD reg offset: 0x23
- Bits [7:4]
"uid"
- CPLD reg offset: 0x24
- Bits [3:0]
Color mask for all the above LEDs, excepted uid:
[bit3,bit2,bit1,bit0] or
[bit7,bit6,bit5,bit4]:
- [0,0,0,0] = LED OFF
- [0,1,0,1] = Red static ON
- [1,1,0,1] = Green static ON
- [0,1,1,0] = Red blink 3Hz
- [1,1,1,0] = Green blink 3Hz
- [0,1,1,1] = Red blink 6Hz
- [1,1,1,1] = Green blink 6Hz
Color mask for uid LED:
[bit3,bit2,bit1,bit0]:
- [0,0,0,0] = LED OFF
- [1,1,0,1] = Blue static ON
- [1,1,1,0] = Blue blink 3Hz
- [1,1,1,1] = Blue blink 6Hz
Driver supports HW blinking at 3Hz and 6Hz frequency (50% duty cycle).
For 3Hz duty cylce is about 167 msec, for 6Hz is about 83 msec.
