2019-06-28 12:20:20 +00:00
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=======================================
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Kernel driver for Mellanox systems LEDs
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=======================================
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Provide system LED support for the nex Mellanox systems:
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"msx6710", "msx6720", "msb7700", "msn2700", "msx1410",
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"msn2410", "msb7800", "msn2740", "msn2100".
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Description
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-----------
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Driver provides the following LEDs for the systems "msx6710", "msx6720",
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"msb7700", "msn2700", "msx1410", "msn2410", "msb7800", "msn2740":
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- mlxcpld:fan1:green
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- mlxcpld:fan1:red
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- mlxcpld:fan2:green
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- mlxcpld:fan2:red
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- mlxcpld:fan3:green
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- mlxcpld:fan3:red
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- mlxcpld:fan4:green
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- mlxcpld:fan4:red
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- mlxcpld:psu:green
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- mlxcpld:psu:red
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- mlxcpld:status:green
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- mlxcpld:status:red
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"status"
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- CPLD reg offset: 0x20
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- Bits [3:0]
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"psu"
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- CPLD reg offset: 0x20
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- Bits [7:4]
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"fan1"
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- CPLD reg offset: 0x21
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- Bits [3:0]
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"fan2"
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- CPLD reg offset: 0x21
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- Bits [7:4]
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"fan3"
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- CPLD reg offset: 0x22
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- Bits [3:0]
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"fan4"
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- CPLD reg offset: 0x22
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- Bits [7:4]
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Color mask for all the above LEDs:
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[bit3,bit2,bit1,bit0] or
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[bit7,bit6,bit5,bit4]:
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- [0,0,0,0] = LED OFF
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- [0,1,0,1] = Red static ON
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- [1,1,0,1] = Green static ON
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- [0,1,1,0] = Red blink 3Hz
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- [1,1,1,0] = Green blink 3Hz
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- [0,1,1,1] = Red blink 6Hz
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- [1,1,1,1] = Green blink 6Hz
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Driver provides the following LEDs for the system "msn2100":
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- mlxcpld:fan:green
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- mlxcpld:fan:red
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- mlxcpld:psu1:green
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- mlxcpld:psu1:red
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- mlxcpld:psu2:green
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- mlxcpld:psu2:red
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- mlxcpld:status:green
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- mlxcpld:status:red
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- mlxcpld:uid:blue
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"status"
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- CPLD reg offset: 0x20
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- Bits [3:0]
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"fan"
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- CPLD reg offset: 0x21
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- Bits [3:0]
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"psu1"
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- CPLD reg offset: 0x23
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- Bits [3:0]
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"psu2"
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- CPLD reg offset: 0x23
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- Bits [7:4]
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"uid"
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- CPLD reg offset: 0x24
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- Bits [3:0]
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Color mask for all the above LEDs, excepted uid:
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[bit3,bit2,bit1,bit0] or
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[bit7,bit6,bit5,bit4]:
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- [0,0,0,0] = LED OFF
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- [0,1,0,1] = Red static ON
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- [1,1,0,1] = Green static ON
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- [0,1,1,0] = Red blink 3Hz
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- [1,1,1,0] = Green blink 3Hz
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- [0,1,1,1] = Red blink 6Hz
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- [1,1,1,1] = Green blink 6Hz
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Color mask for uid LED:
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[bit3,bit2,bit1,bit0]:
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- [0,0,0,0] = LED OFF
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- [1,1,0,1] = Blue static ON
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- [1,1,1,0] = Blue blink 3Hz
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- [1,1,1,1] = Blue blink 6Hz
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Driver supports HW blinking at 3Hz and 6Hz frequency (50% duty cycle).
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2024-08-25 03:50:39 +00:00
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For 3Hz duty cycle is about 167 msec, for 6Hz is about 83 msec.
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