d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/* String-to-compress [31:8] = CID (all 24 bits)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * String-to-compress [7:4] = Region
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * String-to-compress [3:0] = Type
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define CDU_VALID_DATA(_cid, _region, _type) (((_cid) << 8) | (((_region)&0xf)<<4) | (((_type)&0xf)))
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define CDU_CRC8(_cid, _region, _type) (calc_crc8(CDU_VALID_DATA(_cid, _region, _type), 0xff))
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define CDU_RSRVD_VALUE_TYPE_A(_cid, _region, _type) (0x80 | ((CDU_CRC8(_cid, _region, _type)) & 0x7f))
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define CDU_RSRVD_VALUE_TYPE_B(_crc, _type) (0x80 | ((_type)&0xf << 3) | ((CDU_CRC8(_cid, _region, _type)) & 0x7))
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#define CDU_RSRVD_INVALIDATE_CONTEXT_VALUE(_val) ((_val) & ~0x80)
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi/******************************************************************************
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Description:
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Calculates crc 8 on a word value: polynomial 0-1-2-8
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi * Code was translated from Verilog.
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi *****************************************************************************/
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi /* split the data into 31 bits */
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi for (i = 0; i < 32; i++) {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi /* split the crc into 8 bits */
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi for (i = 0; i < 8; i++ ) {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi NewCRC[0] = D[31] ^ D[30] ^ D[28] ^ D[23] ^ D[21] ^ D[19] ^ D[18] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi D[16] ^ D[14] ^ D[12] ^ D[8] ^ D[7] ^ D[6] ^ D[0] ^ C[4] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi NewCRC[1] = D[30] ^ D[29] ^ D[28] ^ D[24] ^ D[23] ^ D[22] ^ D[21] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi D[20] ^ D[18] ^ D[17] ^ D[16] ^ D[15] ^ D[14] ^ D[13] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi D[12] ^ D[9] ^ D[6] ^ D[1] ^ D[0] ^ C[0] ^ C[4] ^ C[5] ^ C[6];
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi NewCRC[2] = D[29] ^ D[28] ^ D[25] ^ D[24] ^ D[22] ^ D[17] ^ D[15] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi D[13] ^ D[12] ^ D[10] ^ D[8] ^ D[6] ^ D[2] ^ D[1] ^ D[0] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi NewCRC[3] = D[30] ^ D[29] ^ D[26] ^ D[25] ^ D[23] ^ D[18] ^ D[16] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi D[14] ^ D[13] ^ D[11] ^ D[9] ^ D[7] ^ D[3] ^ D[2] ^ D[1] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi NewCRC[4] = D[31] ^ D[30] ^ D[27] ^ D[26] ^ D[24] ^ D[19] ^ D[17] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi D[15] ^ D[14] ^ D[12] ^ D[10] ^ D[8] ^ D[4] ^ D[3] ^ D[2] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi NewCRC[5] = D[31] ^ D[28] ^ D[27] ^ D[25] ^ D[20] ^ D[18] ^ D[16] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi D[15] ^ D[13] ^ D[11] ^ D[9] ^ D[5] ^ D[4] ^ D[3] ^ C[1] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi NewCRC[6] = D[29] ^ D[28] ^ D[26] ^ D[21] ^ D[19] ^ D[17] ^ D[16] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi D[14] ^ D[12] ^ D[10] ^ D[6] ^ D[5] ^ D[4] ^ C[2] ^ C[4] ^ C[5];
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi NewCRC[7] = D[30] ^ D[29] ^ D[27] ^ D[22] ^ D[20] ^ D[18] ^ D[17] ^
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi D[15] ^ D[13] ^ D[11] ^ D[7] ^ D[6] ^ D[5] ^ C[3] ^ C[5] ^ C[6];
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi for (i = 0; i < 8; i++) {
d14abf155341d55053c76eeec58b787a456b753bRobert Mustacchi#endif //CDU_DEF_H