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- =======================================
- Kernel driver for Mellanox systems LEDs
- =======================================
- Provide system LED support for the nex Mellanox systems:
- "msx6710", "msx6720", "msb7700", "msn2700", "msx1410",
- "msn2410", "msb7800", "msn2740", "msn2100".
- Description
- -----------
- 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.
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