fsl/qe/ucc_slow.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
28 #define T_A	0x04000000	/* Address - the data transmitted as address
31 #define T_CM	0x02000000	/* continuous mode */
33 #define T_P	0x01000000	/* Preamble - send Preamble sequence before
54 #define R_CM	0x02000000	/* continuous mode */
57 				   mode */
62 #define R_NO	0x00100000	/* Rx Non Octet Aligned Packet */
74 /* Rx Data buffer must be 4 bytes aligned in most cases.*/
80 /* UCC Slow Channel Protocol Mode */
89 	/* 16-bit CCITT CRC (HDLC).  (X16 + X12 + X5 + 1) */
93 	/* 32-bit CCITT CRC (Ethernet and HDLC) */
99 	/* 1x clock mode */
101 	/* 8x clock mode */
103 	/* 16x clock mode */
105 	/* 32x clock mode */
112 	/* 1x clock mode */
114 	/* 8x clock mode */
116 	/* 16x clock mode */
118 	/* 32x clock mode */
136 /* UCC Slow Diagnostic mode (DIAG)
176 	enum ucc_slow_channel_protocol_mode mode;  member
190 	int enabled_rx;		/* Whether channel is enabled for Rx (ENR) */
193 	int stopped_rx;		/* Whether channel has been stopped for Rx */
198 	s32 rx_base_offset;	/* first BD in Rx BD table offset (In MURAM) */
201 	struct qe_bd __iomem *rx_bd;	/* next BD to collect after Rx */
205 	u16 saved_uccm;		/* a saved mask for the RX Interrupt bits */
219  * us_info  - (In) pointer to the slow UCC info structure.
220  * uccs_ret - (Out) pointer to the slow UCC structure.
227  * uccs - (In) pointer to the slow UCC structure.
233  * This routine enables Tx and/or Rx through the General UCC Mode Register.
235  * uccs - (In) pointer to the slow UCC structure.
236  * mode - (In) TX, RX, or both.
238 void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode);
242  * This routine disables Tx and/or Rx through the General UCC Mode Register.
244  * uccs - (In) pointer to the slow UCC structure.
245  * mode - (In) TX, RX, or both.
247 void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode);
252  * uccs - (In) pointer to the slow UCC structure.
259  * uccs - (In) pointer to the slow UCC structure.
266  * uccs - (In) pointer to the slow UCC structure.