User guide

MOTOROLA MPC184/MPC185 Security Co-Processor Software User’s Guide 9

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

Global Definitions

4 Global Definitions

4.1 I/O Control Codes

The I/O control code is the second argument in the ioctl function.

Internally, these values (as shown in Table 2), are used in conjunction with a base index to create the I/O

control codes. The macro for this base index is defined by the

MPC18x_IOCTL_INDEX and has a value of

0x0800.

Note: The * in the third column of the above table indicates a pointer.

Table 2. Second and Third Arguments in the ioctl Function

I/O Control Code (Second Argument in ioctl Function) Value Third Argument in ioctl Function

IOCTL_PROC_REQ 0x0801 Request Structure *

IOCTL_GET_STATUS 0x0802 STATUS_REQ *

IOCTL_RESERVE_CHANNEL_STATIC 0x0804 unsigned long *channel

IOCTL_RESERVE_CHANNEL_MANUAL

This control code is used exclusively in debug/slave mode. The drivers make it available but do not use it.

0x0805 MPC18x_RESERVE_MANUAL *

IOCTL_ASSIGN_CHA 0x0806 unsigned long cha

IOCTL_RELEASE_CHA 0x0807 unsigned long cha

IOCTL_RELEASE_CHANNEL 0x0808 unsigned long *channel

The following are used for LINUX only

IOCTL_MALLOC 0x080D MALLOC_REQ *

IOCTL_FREE 0x080E MALLOC_REQ *

IOCTL_COPYFROM 0x080F MALLOC_REQ *

IOCTL_COPYTO 0x0810 MALLOC_REQ *