1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Support for Intel Camera Imaging ISP subsystem.
4 * Copyright (c) 2010-2016, Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13 * more details.
14 */
15
16#include "debug.h"
17
18#include "hmm.h"
19
20#ifndef __INLINE_DEBUG__
21#include "debug_private.h"
22#endif /* __INLINE_DEBUG__ */
23
24#define __INLINE_SP__
25#include "sp.h"
26
27#include "assert_support.h"
28
29/* The address of the remote copy */
30hrt_address	debug_buffer_address = (hrt_address) - 1;
31ia_css_ptr	debug_buffer_ddr_address = (ia_css_ptr)-1;
32/* The local copy */
33static debug_data_t		debug_data;
34debug_data_t		*debug_data_ptr = &debug_data;
35
36void debug_buffer_init(const hrt_address addr)
37{
38	debug_buffer_address = addr;
39
40	debug_data.head = 0;
41	debug_data.tail = 0;
42}
43
44void debug_buffer_ddr_init(const ia_css_ptr addr)
45{
46	debug_buf_mode_t mode = DEBUG_BUFFER_MODE_LINEAR;
47	u32 enable = 1;
48	u32 head = 0;
49	u32 tail = 0;
50	/* set the ddr queue */
51	debug_buffer_ddr_address = addr;
52	hmm_store(addr + DEBUG_DATA_BUF_MODE_DDR_ADDR,
53		   &mode, sizeof(debug_buf_mode_t));
54	hmm_store(addr + DEBUG_DATA_HEAD_DDR_ADDR,
55		   &head, sizeof(uint32_t));
56	hmm_store(addr + DEBUG_DATA_TAIL_DDR_ADDR,
57		   &tail, sizeof(uint32_t));
58	hmm_store(addr + DEBUG_DATA_ENABLE_DDR_ADDR,
59		   &enable, sizeof(uint32_t));
60
61	/* set the local copy */
62	debug_data.head = 0;
63	debug_data.tail = 0;
64}
65
66void debug_buffer_setmode(const debug_buf_mode_t mode)
67{
68	assert(debug_buffer_address != ((hrt_address)-1));
69
70	sp_dmem_store_uint32(SP0_ID,
71			     debug_buffer_address + DEBUG_DATA_BUF_MODE_ADDR, mode);
72}
73