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#ifndef EXCITE_FPGA_H_INCLUDED
#define EXCITE_FPGA_H_INCLUDED
/**
* Adress alignment of the individual FPGA bytes.
* The address arrangement of the individual bytes of the FPGA is two
* byte aligned at the embedded MK2 platform.
*/
#ifdef EXCITE_CCI_FPGA_MK2
typedef unsigned char excite_cci_fpga_align_t __attribute__ ((aligned(2)));
#else
typedef unsigned char excite_cci_fpga_align_t;
#endif
/**
* Size of Dual Ported RAM.
*/
#define EXCITE_DPR_SIZE 263
/**
* Size of Reserved Status Fields in Dual Ported RAM.
*/
#define EXCITE_DPR_STATUS_SIZE 7
/**
* FPGA.
* Hardware register layout of the FPGA interface. The FPGA must accessed
* byte wise solely.
* @see EXCITE_CCI_DPR_MK2
*/
typedef struct excite_fpga {
/**
* Dual Ported RAM.
*/
excite_cci_fpga_align_t dpr[EXCITE_DPR_SIZE];
/**
* Status.
*/
excite_cci_fpga_align_t status[EXCITE_DPR_STATUS_SIZE];
#ifdef EXCITE_CCI_FPGA_MK2
/**
* RM9000 Interrupt.
* Write access initiates interrupt at the RM9000 (MIPS) processor of the eXcite.
*/
excite_cci_fpga_align_t rm9k_int;
#else
/**
* MK2 Interrupt.
* Write access initiates interrupt at the ARM processor of the MK2.
*/
excite_cci_fpga_align_t mk2_int;
excite_cci_fpga_align_t gap[0x1000-0x10f];
/**
* IRQ Source/Acknowledge.
*/
excite_cci_fpga_align_t rm9k_irq_src;
/**
* IRQ Mask.
* Set bits enable the related interrupt.
*/
excite_cci_fpga_align_t rm9k_irq_mask;
#endif
} excite_fpga;
#endif /* ndef EXCITE_FPGA_H_INCLUDED */
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