Difference: DTCLibrary (3 vs. 4)

Revision 422 Jun 2010 - MichaelDimitriyev

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META TOPICPARENT	name="DTCSoftware"

The DTC library, dtcreg, contains a set of functions that facilitate reading from and writing to registers on the DTC.

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dtc_read8/dtc_read32

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Specialized for reading from 8-bit registers and 32-bit registers (four subsequent 8-bit registers). Can also read from a number of subsequent registers.

int dtc_read8(hDTC handle, int regAddr, uint8_t dat[], int count) / dtc_readx8(..., char *hexRegAddr, ..., ...)

The third parameter requires an array which will hold the amount of data specified by count, which specifies the number of subsequent registers to read (count = 1 reads one).

int dtc_read32(hDTC handle, int regAddr, uint32_t dat[], int count) / dtc_readx32(..., char *hexRegAddr, ..., ...)

Here, count refers to the number of 32-bit registers to read from, that is, 4*count will be the total number of 8-bit registers to be read.

dtc_write8/dtc_write32

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Similar to dtc_read8/dtc_read32.

int dtc_write8(hDTC handle, int regAddr, uint8_t dat[], int count) / dtc_writex8(..., char *hexRegAddr, ..., ...)

Takes an array of data in the third argument and writes to a number of subsequent registers specified by count. So, dat[0] is written to the register specified by regAddr, dat[1] is written to regAddr+1, ..., dat[count-1] is written to regAddr+count-1.

int dtc_write32(hDTC handle, int regAddr, uint32_t dat[], int count) / dtc_writex32(..., char *hexRegAddr, ..., ...)

dat[0] is written to registers regAddr through regAddr+3, dat[1] is written to regAddr+4 through regAddr+7, ..., dat[count-1] is written to regAddr+4*(count-1) through regAddr+4*(count-1)+3.

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dtcreg is built on ipmitool and is a wrapper for some of its structures and functions; so while using it does not require knowledge of the ipmitool code, programs built with it must include several additional libraries which are required by ipmitool. There is a makefile included in the dtcreg directory. A description of the header files and libraries and where they are located is at ipmitool.

Header files (relative to top ipmitool directory):

(include/ipmitool/) ipmi.h, ipmi_intf.h, ipmi_main.h, ipmi_raw.h, ipmi_strings.h

(src/plugins/) lan/lan.h

Libraries (relative to top ipmitool directory):

lib/.libs/libipmitool.a src/plugins/.libs/libintf.a src/plugins/lan/.libs/libintf_lan.a

(other) libncurses, libcrypto, libm

-- MichaelDimitriyev - 16 Jun 2010 \ No newline at end of file

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