2.2 BSP Rel. 1.0 for PPMC-275 Programmer's Guide
2.2 BSP Rel. 1.0 for PPMC-275 Programmer's Guide
2.2 BSP Rel. 1.0 for PPMC-275 Programmer's Guide
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API Call Reference List of APIs<br />
List of APIs<br />
MV-64360 General Driver<br />
Software Modules<br />
External Interface<br />
This chapter provides a detailed description of all functions.<br />
Note:<br />
• The term Input used in this chapter is a parameter that must<br />
be passed to the function.<br />
• The term Output used in this chapter is the result of the function.<br />
• The term Return used in this chapter is the value returned by<br />
the function.<br />
This driver functions as the lowest software interface to the MV-<br />
64360 registers and SDRAM accesses. All hardware register<br />
accesses and SDMA readings are completed by this API. To<br />
achieve better per<strong>for</strong>mance, most accesses are implemented using<br />
macro definition<br />
The driver is implemented in:<br />
gtCore.c: Data block read/write and register write mask bits.<br />
gtCore.h: Macro <strong>for</strong> read/write cacheable/non-cacheable<br />
char/short/word.<br />
The APIs <strong>for</strong> the external interface are listed here.<br />
Table 3:General Driver API Synopsis<br />
Macro Description<br />
REG_ADDR(offset) Returns the full address of a given register offset.<br />
REG_CONTENT(offset) Returns the register’s content.<br />
VIRTUAL_TO_PHY(ad<br />
dress)<br />
Meaningless <strong>for</strong> PPC CPUs.<br />
VxWorks 5.5/Tornado <strong>2.2</strong> <strong>BSP</strong> <strong>Rel</strong>. <strong>1.0</strong> <strong>for</strong> <strong>PPMC</strong>-<strong>275</strong> 5 - 3
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