/*
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* SPDX-License-Identifier: GPL-2.0
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*
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* Copyright(C) 2015-2018 Linaro Limited.
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*
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* Author: Tor Jeremiassen <tor@ti.com>
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* Author: Mathieu Poirier <mathieu.poirier@linaro.org>
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*/
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#ifndef INCLUDE__CS_ETM_DECODER_H__
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#define INCLUDE__CS_ETM_DECODER_H__
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#include <linux/types.h>
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#include <stdio.h>
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struct cs_etm_decoder;
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struct cs_etm_packet;
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struct cs_etm_packet_queue;
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struct cs_etm_queue;
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typedef u32 (*cs_etm_mem_cb_type)(struct cs_etm_queue *, u8, u64, size_t, u8 *);
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struct cs_etmv3_trace_params {
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u32 reg_ctrl;
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u32 reg_trc_id;
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u32 reg_ccer;
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u32 reg_idr;
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};
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struct cs_etmv4_trace_params {
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u32 reg_idr0;
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u32 reg_idr1;
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u32 reg_idr2;
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u32 reg_idr8;
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u32 reg_configr;
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u32 reg_traceidr;
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};
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struct cs_etm_trace_params {
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int protocol;
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union {
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struct cs_etmv3_trace_params etmv3;
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struct cs_etmv4_trace_params etmv4;
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};
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};
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struct cs_etm_decoder_params {
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int operation;
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void (*packet_printer)(const char *msg);
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cs_etm_mem_cb_type mem_acc_cb;
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u8 formatted;
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u8 fsyncs;
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u8 hsyncs;
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u8 frame_aligned;
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void *data;
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};
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/*
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* The following enums are indexed starting with 1 to align with the
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* open source coresight trace decoder library.
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*/
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enum {
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CS_ETM_PROTO_ETMV3 = 1,
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CS_ETM_PROTO_ETMV4i,
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CS_ETM_PROTO_ETMV4d,
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CS_ETM_PROTO_PTM,
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};
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enum cs_etm_decoder_operation {
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CS_ETM_OPERATION_PRINT = 1,
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CS_ETM_OPERATION_DECODE,
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CS_ETM_OPERATION_MAX,
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};
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int cs_etm_decoder__process_data_block(struct cs_etm_decoder *decoder,
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u64 indx, const u8 *buf,
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size_t len, size_t *consumed);
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struct cs_etm_decoder *
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cs_etm_decoder__new(int num_cpu,
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struct cs_etm_decoder_params *d_params,
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struct cs_etm_trace_params t_params[]);
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void cs_etm_decoder__free(struct cs_etm_decoder *decoder);
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int cs_etm_decoder__add_mem_access_cb(struct cs_etm_decoder *decoder,
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u64 start, u64 end,
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cs_etm_mem_cb_type cb_func);
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int cs_etm_decoder__get_packet(struct cs_etm_packet_queue *packet_queue,
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struct cs_etm_packet *packet);
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int cs_etm_decoder__reset(struct cs_etm_decoder *decoder);
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#endif /* INCLUDE__CS_ETM_DECODER_H__ */
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