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 */
30 hrt_address debug_buffer_address = (hrt_address) - 1;
31 ia_css_ptr debug_buffer_ddr_address = (ia_css_ptr)-1;
32 /* The local copy */
33 static debug_data_t debug_data;
34 debug_data_t *debug_data_ptr = &debug_data;
35
debug_buffer_init(const hrt_address addr)36 void 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
debug_buffer_ddr_init(const ia_css_ptr addr)44 void 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
debug_buffer_setmode(const debug_buf_mode_t mode)66 void 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