Esempi in C++ (Cpp) per elm_load_syndrome

Esempio n. 1

File: elm.c Progetto: CSCLOG/beaglebone

int elm_decode_bch_error(int bch_type, char *ecc_calc, unsigned int *err_loc)
{
	u8 ecc_data[28] = {0};
	u32 reg_val;
	int i, err_no;

	rotate_ecc_bytes(ecc_calc, ecc_data);
	elm_load_syndrome(bch_type, ecc_data);
	elm_start_processing();
	wait_for_completion(&elm_completion);
	reg_val = elm_read_reg(ELM_LOCATION_STATUS);

	if (reg_val & ECC_CORRECTABLE_MASK) {
		err_no = reg_val & ECC_NB_ERRORS_MASK;

		for (i = 0; i < err_no; i++) {
			reg_val = elm_read_reg(ELM_ERROR_LOCATION_0 + i * 4);
			err_loc[i] = reg_val;
		}

		return err_no;
	}

	return -EINVAL;
}

Esempio n. 2

File: elm.c Progetto: RhythmEngineering/linux-arago-omap3

int elm_decode_bch_error(int bch_type,
				char *ecc_calc, unsigned int *err_loc)
{
	u8 ecc_data[28] = {0};
	u32 reg_val;
	int i, err_no;

	/* input calculated ECC syndrome to ELM engine */
	switch (bch_type) {
	case ECC_TYPE_BCH16:
		rotate_ecc_bytes(ECC_BYTES_BCH16, ecc_calc, ecc_data);
		elm_load_syndrome(ECC_BYTES_BCH16, ecc_data);
		break;
	case ECC_TYPE_BCH8:
		rotate_ecc_bytes(ECC_BYTES_BCH8, ecc_calc, ecc_data);
		elm_load_syndrome(ECC_BYTES_BCH8, ecc_data);
		break;
	case ECC_TYPE_BCH4:
		rotate_ecc_bytes(ECC_BYTES_BCH4, ecc_calc, ecc_data);
		elm_load_syndrome(ECC_BYTES_BCH4, ecc_data);
		break;
	default:
		return -EINVAL;
	}

	/* start elm processing */
	reg_val = elm_read_reg(ELM_SYNDROME_FRAGMENT_6);
	reg_val |= ELM_SYNDROME_VALID;
	elm_write_reg(ELM_SYNDROME_FRAGMENT_6, reg_val);

	wait_for_completion(&elm_completion);
	reg_val = elm_read_reg(ELM_LOCATION_STATUS);

	if (reg_val & ECC_CORRECTABLE_MASK) {
		err_no = reg_val & ECC_NB_ERRORS_MASK;

		for (i = 0; i < err_no; i++) {
			reg_val = elm_read_reg(ELM_ERROR_LOCATION_0 + i * 4);
			err_loc[i] = reg_val;
		}

		return err_no;
	}

	return -EINVAL;
}