from operator import itemgetter import re def get_macros(filename): f = open(filename, "r") r = {} for line in f: match = re.match("\w*#define\s+(\w+)\s+(.*)", line, re.IGNORECASE) if match: r[match.group(1)] = match.group(2) return r def _get_rw_functions(reg_name, reg_base, size): r = "" if size > 8: raise NotImplementedError("Register too large") elif size > 4: ctype = "unsigned long long int" elif size > 2: ctype = "unsigned int" elif size > 1: ctype = "unsigned short int" else: ctype = "unsigned char" r += "static inline "+ctype+" "+reg_name+"_read(void) {\n" if size > 1: r += "\t"+ctype+" r = MMPTR("+hex(reg_base)+");\n" for byte in range(1, size): r += "\tr <<= 8;\n\tr |= MMPTR("+hex(reg_base+4*byte)+");\n" r += "\treturn r;\n}\n" else: r += "\treturn MMPTR("+hex(reg_base)+");\n}\n" r += "static inline void "+reg_name+"_write("+ctype+" value) {\n" for byte in range(size): shift = (size-byte-1)*8 if shift: value_shifted = "value >> "+str(shift) else: value_shifted = "value" r += "\tMMPTR("+hex(reg_base+4*byte)+") = "+value_shifted+";\n" r += "}\n" return r def get_csr_header(csr_base, bank_array, interrupt_map): r = "#ifndef __HW_CSR_H\n#define __HW_CSR_H\n#include \n" for name, rmap in bank_array.banks: r += "\n/* "+name+" */\n" reg_base = csr_base + 0x800*rmap.address r += "#define "+name.upper()+"_BASE "+hex(reg_base)+"\n" for register in rmap.description: nr = (register.get_size() + 7)//8 r += _get_rw_functions(name + "_" + register.name, reg_base, nr) reg_base += 4*nr try: interrupt_nr = interrupt_map[name] except KeyError: pass else: r += "#define "+name.upper()+"_INTERRUPT "+str(interrupt_nr)+"\n" r += "\n#endif\n" return r