From 0b73ce30604c4fc9a004338cac6a28bc3f3e2fab Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Sat, 23 Jan 2021 18:39:57 +0800 Subject: util: Add CRC16 (CCITT) calculation routines Import CRC16 calculation routines from Linux kernel v5.10: include/linux/crc-ccitt.h lib/crc-ccitt.c to QEMU: include/qemu/crc-ccitt.h util/crc-ccitt.c Signed-off-by: Bin Meng Acked-by: Alistair Francis Message-Id: <20210123104016.17485-7-bmeng.cn@gmail.com> Reviewed-by: Philippe Mathieu-Daudé [PMD: Restrict compilation to system emulation] Signed-off-by: Philippe Mathieu-Daudé --- include/qemu/crc-ccitt.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 include/qemu/crc-ccitt.h (limited to 'include') diff --git a/include/qemu/crc-ccitt.h b/include/qemu/crc-ccitt.h new file mode 100644 index 0000000000..06ee55b159 --- /dev/null +++ b/include/qemu/crc-ccitt.h @@ -0,0 +1,33 @@ +/* + * CRC16 (CCITT) Checksum Algorithm + * + * Copyright (c) 2021 Wind River Systems, Inc. + * + * Author: + * Bin Meng + * + * From Linux kernel v5.10 include/linux/crc-ccitt.h + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef _CRC_CCITT_H +#define _CRC_CCITT_H + +extern uint16_t const crc_ccitt_table[256]; +extern uint16_t const crc_ccitt_false_table[256]; + +extern uint16_t crc_ccitt(uint16_t crc, const uint8_t *buffer, size_t len); +extern uint16_t crc_ccitt_false(uint16_t crc, const uint8_t *buffer, size_t len); + +static inline uint16_t crc_ccitt_byte(uint16_t crc, const uint8_t c) +{ + return (crc >> 8) ^ crc_ccitt_table[(crc ^ c) & 0xff]; +} + +static inline uint16_t crc_ccitt_false_byte(uint16_t crc, const uint8_t c) +{ + return (crc << 8) ^ crc_ccitt_false_table[(crc >> 8) ^ c]; +} + +#endif /* _CRC_CCITT_H */ -- cgit v1.2.3-55-g7522 From 3f20ccd359913013723f64e2443dd513786039f6 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Sat, 23 Jan 2021 18:40:05 +0800 Subject: hw/sd: sd.h: Cosmetic change of using spaces QEMU coding convention prefers spaces over tabs. Signed-off-by: Bin Meng Reviewed-by: Alistair Francis Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20210123104016.17485-15-bmeng.cn@gmail.com> Signed-off-by: Philippe Mathieu-Daudé --- include/hw/sd/sd.h | 42 +++++++++++++++++++++--------------------- 1 file changed, 21 insertions(+), 21 deletions(-) (limited to 'include') diff --git a/include/hw/sd/sd.h b/include/hw/sd/sd.h index 59d108d453..05ef9b73e5 100644 --- a/include/hw/sd/sd.h +++ b/include/hw/sd/sd.h @@ -33,27 +33,27 @@ #include "hw/qdev-core.h" #include "qom/object.h" -#define OUT_OF_RANGE (1 << 31) -#define ADDRESS_ERROR (1 << 30) -#define BLOCK_LEN_ERROR (1 << 29) -#define ERASE_SEQ_ERROR (1 << 28) -#define ERASE_PARAM (1 << 27) -#define WP_VIOLATION (1 << 26) -#define CARD_IS_LOCKED (1 << 25) -#define LOCK_UNLOCK_FAILED (1 << 24) -#define COM_CRC_ERROR (1 << 23) -#define ILLEGAL_COMMAND (1 << 22) -#define CARD_ECC_FAILED (1 << 21) -#define CC_ERROR (1 << 20) -#define SD_ERROR (1 << 19) -#define CID_CSD_OVERWRITE (1 << 16) -#define WP_ERASE_SKIP (1 << 15) -#define CARD_ECC_DISABLED (1 << 14) -#define ERASE_RESET (1 << 13) -#define CURRENT_STATE (7 << 9) -#define READY_FOR_DATA (1 << 8) -#define APP_CMD (1 << 5) -#define AKE_SEQ_ERROR (1 << 3) +#define OUT_OF_RANGE (1 << 31) +#define ADDRESS_ERROR (1 << 30) +#define BLOCK_LEN_ERROR (1 << 29) +#define ERASE_SEQ_ERROR (1 << 28) +#define ERASE_PARAM (1 << 27) +#define WP_VIOLATION (1 << 26) +#define CARD_IS_LOCKED (1 << 25) +#define LOCK_UNLOCK_FAILED (1 << 24) +#define COM_CRC_ERROR (1 << 23) +#define ILLEGAL_COMMAND (1 << 22) +#define CARD_ECC_FAILED (1 << 21) +#define CC_ERROR (1 << 20) +#define SD_ERROR (1 << 19) +#define CID_CSD_OVERWRITE (1 << 16) +#define WP_ERASE_SKIP (1 << 15) +#define CARD_ECC_DISABLED (1 << 14) +#define ERASE_RESET (1 << 13) +#define CURRENT_STATE (7 << 9) +#define READY_FOR_DATA (1 << 8) +#define APP_CMD (1 << 5) +#define AKE_SEQ_ERROR (1 << 3) enum SDPhySpecificationVersion { SD_PHY_SPECv1_10_VERS = 1, -- cgit v1.2.3-55-g7522