/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Internal header file for UCC FAST unit routines. * * Copyright (C) 2006 Freescale Semiconductor, Inc. All rights reserved. * * Authors: Shlomi Gridish <[email protected]> * Li Yang <[email protected]> */ #ifndef __UCC_FAST_H__ #define __UCC_FAST_H__ #include <linux/types.h> #include <soc/fsl/qe/immap_qe.h> #include <soc/fsl/qe/qe.h> #include <soc/fsl/qe/ucc.h> /* Receive BD's status and length*/ #define R_E … #define R_W … #define R_I … #define R_L … #define R_F … /* transmit BD's status and length*/ #define T_R … #define T_W … #define T_I … #define T_L … /* Receive BD's status */ #define R_E_S … #define R_W_S … #define R_I_S … #define R_L_S … #define R_F_S … #define R_CM_S … #define R_LG_S … #define R_NO_S … #define R_AB_S … #define R_CR_S … #define R_OV_S … #define R_CD_S … /* transmit BD's status */ #define T_R_S … #define T_W_S … #define T_I_S … #define T_L_S … #define T_TC_S … #define T_TM_S … #define T_UN_S … #define T_CT_S … /* Rx Data buffer must be 4 bytes aligned in most cases */ #define UCC_FAST_RX_ALIGN … #define UCC_FAST_MRBLR_ALIGNMENT … #define UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT … /* Sizes */ #define UCC_FAST_URFS_MIN_VAL … #define UCC_FAST_RECEIVE_VIRTUAL_FIFO_SIZE_FUDGE_FACTOR … /* ucc_fast_channel_protocol_mode - UCC FAST mode */ enum ucc_fast_channel_protocol_mode { … }; /* ucc_fast_transparent_txrx - UCC Fast Transparent TX & RX */ enum ucc_fast_transparent_txrx { … }; /* UCC fast diagnostic mode */ enum ucc_fast_diag_mode { … }; /* UCC fast Sync length (transparent mode only) */ enum ucc_fast_sync_len { … }; /* UCC fast RTS mode */ enum ucc_fast_ready_to_send { … }; /* UCC fast receiver decoding mode */ enum ucc_fast_rx_decoding_method { … }; /* UCC fast transmitter encoding mode */ enum ucc_fast_tx_encoding_method { … }; /* UCC fast CRC length */ enum ucc_fast_transparent_tcrc { … }; /* Fast UCC initialization structure */ struct ucc_fast_info { … }; struct ucc_fast_private { … }; /* ucc_fast_init * Initializes Fast UCC according to user provided parameters. * * uf_info - (In) pointer to the fast UCC info structure. * uccf_ret - (Out) pointer to the fast UCC structure. */ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** uccf_ret); /* ucc_fast_free * Frees all resources for fast UCC. * * uccf - (In) pointer to the fast UCC structure. */ void ucc_fast_free(struct ucc_fast_private * uccf); /* ucc_fast_enable * Enables a fast UCC port. * This routine enables Tx and/or Rx through the General UCC Mode Register. * * uccf - (In) pointer to the fast UCC structure. * mode - (In) TX, RX, or both. */ void ucc_fast_enable(struct ucc_fast_private * uccf, enum comm_dir mode); /* ucc_fast_disable * Disables a fast UCC port. * This routine disables Tx and/or Rx through the General UCC Mode Register. * * uccf - (In) pointer to the fast UCC structure. * mode - (In) TX, RX, or both. */ void ucc_fast_disable(struct ucc_fast_private * uccf, enum comm_dir mode); /* ucc_fast_irq * Handles interrupts on fast UCC. * Called from the general interrupt routine to handle interrupts on fast UCC. * * uccf - (In) pointer to the fast UCC structure. */ void ucc_fast_irq(struct ucc_fast_private * uccf); /* ucc_fast_transmit_on_demand * Immediately forces a poll of the transmitter for data to be sent. * Typically, the hardware performs a periodic poll for data that the * transmit routine has set up to be transmitted. In cases where * this polling cycle is not soon enough, this optional routine can * be invoked to force a poll right away, instead. Proper use for * each transmission for which this functionality is desired is to * call the transmit routine and then this routine right after. * * uccf - (In) pointer to the fast UCC structure. */ void ucc_fast_transmit_on_demand(struct ucc_fast_private * uccf); u32 ucc_fast_get_qe_cr_subblock(int uccf_num); void ucc_fast_dump_regs(struct ucc_fast_private * uccf); #endif /* __UCC_FAST_H__ */
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