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9
10#include <linux/device.h>
11#include <linux/gfp.h>
12
13#include <media/v4l2-subdev.h>
14
15#include "vsp1.h"
16#include "vsp1_dl.h"
17#include "vsp1_hsit.h"
18
19#define HSIT_MIN_SIZE 4U
20#define HSIT_MAX_SIZE 8190U
21
22
23
24
25
26static inline void vsp1_hsit_write(struct vsp1_hsit *hsit,
27 struct vsp1_dl_body *dlb, u32 reg, u32 data)
28{
29 vsp1_dl_body_write(dlb, reg, data);
30}
31
32
33
34
35
36static int hsit_enum_mbus_code(struct v4l2_subdev *subdev,
37 struct v4l2_subdev_pad_config *cfg,
38 struct v4l2_subdev_mbus_code_enum *code)
39{
40 struct vsp1_hsit *hsit = to_hsit(subdev);
41
42 if (code->index > 0)
43 return -EINVAL;
44
45 if ((code->pad == HSIT_PAD_SINK && !hsit->inverse) |
46 (code->pad == HSIT_PAD_SOURCE && hsit->inverse))
47 code->code = MEDIA_BUS_FMT_ARGB8888_1X32;
48 else
49 code->code = MEDIA_BUS_FMT_AHSV8888_1X32;
50
51 return 0;
52}
53
54static int hsit_enum_frame_size(struct v4l2_subdev *subdev,
55 struct v4l2_subdev_pad_config *cfg,
56 struct v4l2_subdev_frame_size_enum *fse)
57{
58 return vsp1_subdev_enum_frame_size(subdev, cfg, fse, HSIT_MIN_SIZE,
59 HSIT_MIN_SIZE, HSIT_MAX_SIZE,
60 HSIT_MAX_SIZE);
61}
62
63static int hsit_set_format(struct v4l2_subdev *subdev,
64 struct v4l2_subdev_pad_config *cfg,
65 struct v4l2_subdev_format *fmt)
66{
67 struct vsp1_hsit *hsit = to_hsit(subdev);
68 struct v4l2_subdev_pad_config *config;
69 struct v4l2_mbus_framefmt *format;
70 int ret = 0;
71
72 mutex_lock(&hsit->entity.lock);
73
74 config = vsp1_entity_get_pad_config(&hsit->entity, cfg, fmt->which);
75 if (!config) {
76 ret = -EINVAL;
77 goto done;
78 }
79
80 format = vsp1_entity_get_pad_format(&hsit->entity, config, fmt->pad);
81
82 if (fmt->pad == HSIT_PAD_SOURCE) {
83
84
85
86
87 fmt->format = *format;
88 goto done;
89 }
90
91 format->code = hsit->inverse ? MEDIA_BUS_FMT_AHSV8888_1X32
92 : MEDIA_BUS_FMT_ARGB8888_1X32;
93 format->width = clamp_t(unsigned int, fmt->format.width,
94 HSIT_MIN_SIZE, HSIT_MAX_SIZE);
95 format->height = clamp_t(unsigned int, fmt->format.height,
96 HSIT_MIN_SIZE, HSIT_MAX_SIZE);
97 format->field = V4L2_FIELD_NONE;
98 format->colorspace = V4L2_COLORSPACE_SRGB;
99
100 fmt->format = *format;
101
102
103 format = vsp1_entity_get_pad_format(&hsit->entity, config,
104 HSIT_PAD_SOURCE);
105 *format = fmt->format;
106 format->code = hsit->inverse ? MEDIA_BUS_FMT_ARGB8888_1X32
107 : MEDIA_BUS_FMT_AHSV8888_1X32;
108
109done:
110 mutex_unlock(&hsit->entity.lock);
111 return ret;
112}
113
114static const struct v4l2_subdev_pad_ops hsit_pad_ops = {
115 .init_cfg = vsp1_entity_init_cfg,
116 .enum_mbus_code = hsit_enum_mbus_code,
117 .enum_frame_size = hsit_enum_frame_size,
118 .get_fmt = vsp1_subdev_get_pad_format,
119 .set_fmt = hsit_set_format,
120};
121
122static const struct v4l2_subdev_ops hsit_ops = {
123 .pad = &hsit_pad_ops,
124};
125
126
127
128
129
130static void hsit_configure_stream(struct vsp1_entity *entity,
131 struct vsp1_pipeline *pipe,
132 struct vsp1_dl_list *dl,
133 struct vsp1_dl_body *dlb)
134{
135 struct vsp1_hsit *hsit = to_hsit(&entity->subdev);
136
137 if (hsit->inverse)
138 vsp1_hsit_write(hsit, dlb, VI6_HSI_CTRL, VI6_HSI_CTRL_EN);
139 else
140 vsp1_hsit_write(hsit, dlb, VI6_HST_CTRL, VI6_HST_CTRL_EN);
141}
142
143static const struct vsp1_entity_operations hsit_entity_ops = {
144 .configure_stream = hsit_configure_stream,
145};
146
147
148
149
150
151struct vsp1_hsit *vsp1_hsit_create(struct vsp1_device *vsp1, bool inverse)
152{
153 struct vsp1_hsit *hsit;
154 int ret;
155
156 hsit = devm_kzalloc(vsp1->dev, sizeof(*hsit), GFP_KERNEL);
157 if (hsit == NULL)
158 return ERR_PTR(-ENOMEM);
159
160 hsit->inverse = inverse;
161
162 hsit->entity.ops = &hsit_entity_ops;
163
164 if (inverse)
165 hsit->entity.type = VSP1_ENTITY_HSI;
166 else
167 hsit->entity.type = VSP1_ENTITY_HST;
168
169 ret = vsp1_entity_init(vsp1, &hsit->entity, inverse ? "hsi" : "hst",
170 2, &hsit_ops,
171 MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV);
172 if (ret < 0)
173 return ERR_PTR(ret);
174
175 return hsit;
176}
177
