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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.
|
|
