blob: 42c3b6f42b5c6216537801e128cc992b65a8bc25 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
From 2e0e1d7b493dffe7baa763d499e51ba42f0bad19 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Date: Fri, 29 Sep 2023 17:14:11 +0300
Subject: [PATCH] media: rp1: cfe: Add cfe_find_16bit_code() and
cfe_find_compressed_code()
Add helper functions which, given an mbus code, return the 16-bit
remapped mbus code or the compressed mbus code.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
.../media/platform/raspberrypi/rp1_cfe/cfe.c | 40 +++++++++++++++++++
.../media/platform/raspberrypi/rp1_cfe/cfe.h | 2 +
2 files changed, 42 insertions(+)
--- a/drivers/media/platform/raspberrypi/rp1_cfe/cfe.c
+++ b/drivers/media/platform/raspberrypi/rp1_cfe/cfe.c
@@ -473,6 +473,46 @@ const struct cfe_fmt *find_format_by_pix
return NULL;
}
+/*
+ * Given the mbus code, find the 16 bit remapped code. Returns 0 if no remap
+ * possible.
+ */
+u32 cfe_find_16bit_code(u32 code)
+{
+ const struct cfe_fmt *cfe_fmt;
+
+ cfe_fmt = find_format_by_code(code);
+
+ if (!cfe_fmt || !cfe_fmt->remap[CFE_REMAP_16BIT])
+ return 0;
+
+ cfe_fmt = find_format_by_pix(cfe_fmt->remap[CFE_REMAP_16BIT]);
+ if (!cfe_fmt)
+ return 0;
+
+ return cfe_fmt->code;
+}
+
+/*
+ * Given the mbus code, find the 8 bit compressed code. Returns 0 if no remap
+ * possible.
+ */
+u32 cfe_find_compressed_code(u32 code)
+{
+ const struct cfe_fmt *cfe_fmt;
+
+ cfe_fmt = find_format_by_code(code);
+
+ if (!cfe_fmt || !cfe_fmt->remap[CFE_REMAP_COMPRESSED])
+ return 0;
+
+ cfe_fmt = find_format_by_pix(cfe_fmt->remap[CFE_REMAP_COMPRESSED]);
+ if (!cfe_fmt)
+ return 0;
+
+ return cfe_fmt->code;
+}
+
static int cfe_calc_format_size_bpl(struct cfe_device *cfe,
const struct cfe_fmt *fmt,
struct v4l2_format *f)
--- a/drivers/media/platform/raspberrypi/rp1_cfe/cfe.h
+++ b/drivers/media/platform/raspberrypi/rp1_cfe/cfe.h
@@ -37,5 +37,7 @@ extern const struct v4l2_mbus_framefmt c
const struct cfe_fmt *find_format_by_code(u32 code);
const struct cfe_fmt *find_format_by_pix(u32 pixelformat);
+u32 cfe_find_16bit_code(u32 code);
+u32 cfe_find_compressed_code(u32 code);
#endif
|