Wistron IPMI OEM Commands (0x30)

• This series of commands are mainly used for diagnostic.

Set Fan Speed Control Command: 0x21

• This Command is used to set fan control mode and fan PWM.

Request

Byte	Data
1	Control Mode 1h = Manually Control 0h = Auto Control (follow fan control algorithm)
2	Fan PWM Duty Cycle 00h ~ 64h for 0% ~ 100% PWM duty cycle This field is valid only if the request data byte #1 equals to 01h

Response

Byte	Data
1	Completion code(0x00).

Get Fan Speed Control Command: 0x22

• This Command is used to get fan control mode and fan PWM.

Request

Byte	Data
NA	NA

Response

Byte	Data
1	Completion code(0x00).
2	Control Mode 1h = Manually Control 0h = Auto Control (follow fan control algorithm)
3	Fan PWM Duty Cycle 00h ~ 64h for 0% ~ 100% PWM duty cycle

I2C Read Write Command: 0x25

• Because standard IPMI Master Write-Read command only support 8 buses (ID 0 ~ 7).
• This OEM command is created to write-read all I2C buses of the BMC.

Request

Byte	Data
1	Bus ID, 0-based (count from 0)
2	Slave Address [7:1] Slave Address (7-bit) [0] Reserved. Write as 0.
3	Read Count Number of bytes to read, 1-based. According to work as designed, the max read count is 255. 0 = no bytes to read.
4	Offset Data Offset
(5:N)	Data to write Keep empty for this field if no data to write. According to work as designed, the max write data length is 255 bytes.

Response

Byte	Data
1	Completion code(0x00).
(2:N)	Data read from specified salve address.

Set GPIO Command: 0x26

• This Command is used to set in/out direction and high/low level for a specific GPIO.
• GPIO number = port number * 8 + pin order of the port.

Request

Byte	Data
1	GPIO Number
2	GPIO Direction 0 = Input 1 = Output
3	GPIO Level 0 = Low 1 = high Note: If data byte 2 is 0, data byte 3 will be ignored

Response

Byte	Data
1	Completion code(0x00).

Get GPIO Command: 0x27

• This Command is used to get in/out direction and high/low level for a specific GPIO.
• GPIO number = port number * 8 + pin order of the port.

Request

Byte	Data
1	GPIO Number

Response

Byte	Data
1	Completion code(0x00).
2	GPIO Direction 0 = Input 1 = Output
3	GPIO Level 0 = Low 1 = high

Get All GPIO Command: 0x28

• This Command is used to get direction and level of all GPIOs of BMC.

Request

Byte	Data
NA	NA

Response

Byte	Data
1	Completion code(0x00).
2N	Byte 2N: GPIO Direction of Port18E
2N+1	Byte 2N+1: GPIO Level of Port18E

Get All GPIO Command: 0x3f

• This Command is used to set fru date.

Request

Byte	Data
1	Time byte 1 (LSB)
2	Time byte 2
3	Time byte 3 (MSB)

Response

Byte	Data
1	Completion code(0x00).

Wistron-net IPMI OEM Commands (0x32)

• This series of commands are mainly used for diagnostic.

Read diag log Command: 0x80

• Read logs from BMC directory '/tmp/ipmi_log'.
• The maximun response 'N' is 1024.

Request

Byte	Data
NA	NA

Response

Byte	Data
1	Completion code(0x00).
(2:N)	Response ascii code which reads from '/tmp/ipmi_log'.