ethernet/qualcomm/qca_7k_common.h

20 /*   Atheros Ethernet framing. Every Ethernet frame is surrounded by an atheros
21  *   frame while transmitted over a serial channel.
31 /* Frame is currently being received */
35 #define QCAFRM_NOHEAD (QCAFRM_ERR_BASE - 1)
38 #define QCAFRM_NOTAIL (QCAFRM_ERR_BASE - 2)
40 /* Frame length is invalid */
41 #define QCAFRM_INVLEN (QCAFRM_ERR_BASE - 3)
43 /* Frame length is invalid */
44 #define QCAFRM_INVFRAME (QCAFRM_ERR_BASE - 4)
47 #define QCAFRM_MIN_MTU (ETH_ZLEN - ETH_HLEN)
50 /* Min/Max frame lengths */
61 #define QCAFRM_ERR_BASE -1000
66 	QCAFRM_HW_LEN1 = QCAFRM_HW_LEN0 - 1,
67 	QCAFRM_HW_LEN2 = QCAFRM_HW_LEN1 - 1,
68 	QCAFRM_HW_LEN3 = QCAFRM_HW_LEN2 - 1,
71 	QCAFRM_WAIT_AA1 = QCAFRM_HW_LEN3 - 1,
74 	QCAFRM_WAIT_AA2 = QCAFRM_WAIT_AA1 - 1,
77 	QCAFRM_WAIT_AA3 = QCAFRM_WAIT_AA2 - 1,
80 	QCAFRM_WAIT_AA4 = QCAFRM_WAIT_AA3 - 1,
82 	/*  Waiting Byte 0-1 of length (litte endian) */
83 	QCAFRM_WAIT_LEN_BYTE0 = QCAFRM_WAIT_AA4 - 1,
84 	QCAFRM_WAIT_LEN_BYTE1 = QCAFRM_WAIT_AA4 - 2,
87 	QCAFRM_WAIT_RSVD_BYTE1 = QCAFRM_WAIT_AA4 - 3,
88 	QCAFRM_WAIT_RSVD_BYTE2 = QCAFRM_WAIT_AA4 - 4,
90 	/*  The frame length is used as the state until
91 	 *  the end of the Ethernet frame
97 	QCAFRM_WAIT_552 = QCAFRM_WAIT_551 - 1
100 /*   Structure to maintain the frame decoding during reception. */
111 	/* Frame length as kept by this module */
121 	handle->init = QCAFRM_HW_LEN0;  in qcafrm_fsm_init_spi()
122 	handle->state = handle->init;  in qcafrm_fsm_init_spi()
127 	handle->init = QCAFRM_WAIT_AA1;  in qcafrm_fsm_init_uart()
128 	handle->state = handle->init;  in qcafrm_fsm_init_uart()
131 /*   Gather received bytes and try to extract a full Ethernet frame
134  * Return:   QCAFRM_GATHER       No Ethernet frame fully received yet.
136  *           QCAFRM_INVLEN       QCA7K frame length is invalid
139  *                               Ethernet frame