| Mauro Carvalho Chehab | 8dab919 | 2019-06-28 09:20:20 -0300 | [diff] [blame] | 1 | ======================================= |
| 2 | Kernel driver for Mellanox systems LEDs |
| 3 | ======================================= |
| 4 | |
| 5 | Provide system LED support for the nex Mellanox systems: |
| 6 | "msx6710", "msx6720", "msb7700", "msn2700", "msx1410", |
| 7 | "msn2410", "msb7800", "msn2740", "msn2100". |
| 8 | |
| 9 | Description |
| 10 | ----------- |
| 11 | Driver provides the following LEDs for the systems "msx6710", "msx6720", |
| 12 | "msb7700", "msn2700", "msx1410", "msn2410", "msb7800", "msn2740": |
| 13 | |
| 14 | - mlxcpld:fan1:green |
| 15 | - mlxcpld:fan1:red |
| 16 | - mlxcpld:fan2:green |
| 17 | - mlxcpld:fan2:red |
| 18 | - mlxcpld:fan3:green |
| 19 | - mlxcpld:fan3:red |
| 20 | - mlxcpld:fan4:green |
| 21 | - mlxcpld:fan4:red |
| 22 | - mlxcpld:psu:green |
| 23 | - mlxcpld:psu:red |
| 24 | - mlxcpld:status:green |
| 25 | - mlxcpld:status:red |
| 26 | |
| 27 | "status" |
| 28 | - CPLD reg offset: 0x20 |
| 29 | - Bits [3:0] |
| 30 | |
| 31 | "psu" |
| 32 | - CPLD reg offset: 0x20 |
| 33 | - Bits [7:4] |
| 34 | |
| 35 | "fan1" |
| 36 | - CPLD reg offset: 0x21 |
| 37 | - Bits [3:0] |
| 38 | |
| 39 | "fan2" |
| 40 | - CPLD reg offset: 0x21 |
| 41 | - Bits [7:4] |
| 42 | |
| 43 | "fan3" |
| 44 | - CPLD reg offset: 0x22 |
| 45 | - Bits [3:0] |
| 46 | |
| 47 | "fan4" |
| 48 | - CPLD reg offset: 0x22 |
| 49 | - Bits [7:4] |
| 50 | |
| 51 | Color mask for all the above LEDs: |
| 52 | |
| 53 | [bit3,bit2,bit1,bit0] or |
| 54 | [bit7,bit6,bit5,bit4]: |
| 55 | |
| 56 | - [0,0,0,0] = LED OFF |
| 57 | - [0,1,0,1] = Red static ON |
| 58 | - [1,1,0,1] = Green static ON |
| 59 | - [0,1,1,0] = Red blink 3Hz |
| 60 | - [1,1,1,0] = Green blink 3Hz |
| 61 | - [0,1,1,1] = Red blink 6Hz |
| 62 | - [1,1,1,1] = Green blink 6Hz |
| 63 | |
| 64 | Driver provides the following LEDs for the system "msn2100": |
| 65 | |
| 66 | - mlxcpld:fan:green |
| 67 | - mlxcpld:fan:red |
| 68 | - mlxcpld:psu1:green |
| 69 | - mlxcpld:psu1:red |
| 70 | - mlxcpld:psu2:green |
| 71 | - mlxcpld:psu2:red |
| 72 | - mlxcpld:status:green |
| 73 | - mlxcpld:status:red |
| 74 | - mlxcpld:uid:blue |
| 75 | |
| 76 | "status" |
| 77 | - CPLD reg offset: 0x20 |
| 78 | - Bits [3:0] |
| 79 | |
| 80 | "fan" |
| 81 | - CPLD reg offset: 0x21 |
| 82 | - Bits [3:0] |
| 83 | |
| 84 | "psu1" |
| 85 | - CPLD reg offset: 0x23 |
| 86 | - Bits [3:0] |
| 87 | |
| 88 | "psu2" |
| 89 | - CPLD reg offset: 0x23 |
| 90 | - Bits [7:4] |
| 91 | |
| 92 | "uid" |
| 93 | - CPLD reg offset: 0x24 |
| 94 | - Bits [3:0] |
| 95 | |
| 96 | Color mask for all the above LEDs, excepted uid: |
| 97 | |
| 98 | [bit3,bit2,bit1,bit0] or |
| 99 | [bit7,bit6,bit5,bit4]: |
| 100 | |
| 101 | - [0,0,0,0] = LED OFF |
| 102 | - [0,1,0,1] = Red static ON |
| 103 | - [1,1,0,1] = Green static ON |
| 104 | - [0,1,1,0] = Red blink 3Hz |
| 105 | - [1,1,1,0] = Green blink 3Hz |
| 106 | - [0,1,1,1] = Red blink 6Hz |
| 107 | - [1,1,1,1] = Green blink 6Hz |
| 108 | |
| 109 | Color mask for uid LED: |
| 110 | [bit3,bit2,bit1,bit0]: |
| 111 | |
| 112 | - [0,0,0,0] = LED OFF |
| 113 | - [1,1,0,1] = Blue static ON |
| 114 | - [1,1,1,0] = Blue blink 3Hz |
| 115 | - [1,1,1,1] = Blue blink 6Hz |
| 116 | |
| 117 | Driver supports HW blinking at 3Hz and 6Hz frequency (50% duty cycle). |
| 118 | For 3Hz duty cylce is about 167 msec, for 6Hz is about 83 msec. |