/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */ /* * Copyright (c) 2011, 2012, Atheros Communications Inc. * Copyright (c) 2014, I2SE GmbH */ /* Atheros Ethernet framing. Every Ethernet frame is surrounded by an atheros * frame while transmitted over a serial channel. */ #ifndef _QCA_FRAMING_H #define _QCA_FRAMING_H #include <linux/if_ether.h> #include <linux/if_vlan.h> #include <linux/types.h> /* Frame is currently being received */ #define QCAFRM_GATHER … /* No header byte while expecting it */ #define QCAFRM_NOHEAD … /* No tailer byte while expecting it */ #define QCAFRM_NOTAIL … /* Frame length is invalid */ #define QCAFRM_INVLEN … /* Frame length is invalid */ #define QCAFRM_INVFRAME … /* Min/Max Ethernet MTU: 46/1500 */ #define QCAFRM_MIN_MTU … #define QCAFRM_MAX_MTU … /* Min/Max frame lengths */ #define QCAFRM_MIN_LEN … #define QCAFRM_MAX_LEN … /* QCA7K header len */ #define QCAFRM_HEADER_LEN … /* QCA7K footer len */ #define QCAFRM_FOOTER_LEN … /* QCA7K Framing. */ #define QCAFRM_ERR_BASE … enum qcafrm_state { … }; /* Structure to maintain the frame decoding during reception. */ struct qcafrm_handle { … }; u16 qcafrm_create_header(u8 *buf, u16 len); u16 qcafrm_create_footer(u8 *buf); static inline void qcafrm_fsm_init_spi(struct qcafrm_handle *handle) { … } static inline void qcafrm_fsm_init_uart(struct qcafrm_handle *handle) { … } s32 qcafrm_fsm_decode(struct qcafrm_handle *handle, u8 *buf, u16 buf_len, u8 recv_byte); #endif /* _QCA_FRAMING_H */
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