1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Support for Intel Camera Imaging ISP subsystem.
4 * Copyright (c) 2010 - 2015, 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 "sh_css_sp.h"
17
18 #include "dma.h" /* N_DMA_CHANNEL_ID */
19
20 #include <type_support.h>
21 #include "ia_css_binary.h"
22 #include "sh_css_hrt.h"
23 #include "sh_css_defs.h"
24 #include "sh_css_internal.h"
25 #include "ia_css_debug.h"
26 #include "ia_css_debug_internal.h"
27 #include "sh_css_legacy.h"
28
29 #include "gdc_device.h" /* HRT_GDC_N */
30
31 /*#include "sp.h"*/ /* host2sp_enqueue_frame_data() */
32
33 #include "assert_support.h"
34
35 #include "ia_css_queue.h" /* host_sp_enqueue_XXX */
36 #include "ia_css_event.h" /* ia_css_event_encode */
37 /*
38 * @brief Encode the information into the software-event.
39 * Refer to "sw_event_public.h" for details.
40 */
ia_css_event_encode(u8 * in,u8 nr,uint32_t * out)41 bool ia_css_event_encode(
42 u8 *in,
43 u8 nr,
44 uint32_t *out)
45 {
46 bool ret;
47 u32 nr_of_bits;
48 u32 i;
49
50 assert(in);
51 assert(out);
52 OP___assert(nr > 0 && nr <= MAX_NR_OF_PAYLOADS_PER_SW_EVENT);
53
54 /* initialize the output */
55 *out = 0;
56
57 /* get the number of bits per information */
58 nr_of_bits = sizeof(uint32_t) * 8 / nr;
59
60 /* compress the all inputs into a signle output */
61 for (i = 0; i < nr; i++) {
62 *out <<= nr_of_bits;
63 *out |= in[i];
64 }
65
66 /* get the return value */
67 ret = (nr > 0 && nr <= MAX_NR_OF_PAYLOADS_PER_SW_EVENT);
68
69 return ret;
70 }
71
ia_css_event_decode(u32 event,uint8_t * payload)72 void ia_css_event_decode(
73 u32 event,
74 uint8_t *payload)
75 {
76 assert(payload[1] == 0);
77 assert(payload[2] == 0);
78 assert(payload[3] == 0);
79
80 ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
81 "ia_css_event_decode() enter:\n");
82
83 /* First decode according to the common case
84 * In case of a PORT_EOF event we overwrite with
85 * the specific values
86 * This is somewhat ugly but probably somewhat efficient
87 * (and it avoids some code duplication)
88 */
89 payload[0] = event & 0xff; /*event_code */
90 payload[1] = (event >> 8) & 0xff;
91 payload[2] = (event >> 16) & 0xff;
92 payload[3] = 0;
93
94 switch (payload[0]) {
95 case SH_CSS_SP_EVENT_PORT_EOF:
96 payload[2] = 0;
97 payload[3] = (event >> 24) & 0xff;
98 break;
99
100 case SH_CSS_SP_EVENT_ACC_STAGE_COMPLETE:
101 case SH_CSS_SP_EVENT_TIMER:
102 case SH_CSS_SP_EVENT_FRAME_TAGGED:
103 case SH_CSS_SP_EVENT_FW_WARNING:
104 case SH_CSS_SP_EVENT_FW_ASSERT:
105 payload[3] = (event >> 24) & 0xff;
106 break;
107 default:
108 break;
109 }
110 }
111