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10#include <linux/device.h>
11#include <linux/gfp.h>
12#include <linux/sys_soc.h>
13
14#include <media/media-entity.h>
15#include <media/v4l2-subdev.h>
16
17#include "vsp1.h"
18#include "vsp1_dl.h"
19#include "vsp1_entity.h"
20#include "vsp1_uif.h"
21
22#define UIF_MIN_SIZE 4U
23#define UIF_MAX_SIZE 8190U
24
25
26
27
28
29static inline u32 vsp1_uif_read(struct vsp1_uif *uif, u32 reg)
30{
31 return vsp1_read(uif->entity.vsp1,
32 uif->entity.index * VI6_UIF_OFFSET + reg);
33}
34
35static inline void vsp1_uif_write(struct vsp1_uif *uif,
36 struct vsp1_dl_body *dlb, u32 reg, u32 data)
37{
38 vsp1_dl_body_write(dlb, reg + uif->entity.index * VI6_UIF_OFFSET, data);
39}
40
41u32 vsp1_uif_get_crc(struct vsp1_uif *uif)
42{
43 return vsp1_uif_read(uif, VI6_UIF_DISCOM_DOCMCCRCR);
44}
45
46
47
48
49
50static const unsigned int uif_codes[] = {
51 MEDIA_BUS_FMT_ARGB8888_1X32,
52 MEDIA_BUS_FMT_AHSV8888_1X32,
53 MEDIA_BUS_FMT_AYUV8_1X32,
54};
55
56static int uif_enum_mbus_code(struct v4l2_subdev *subdev,
57 struct v4l2_subdev_pad_config *cfg,
58 struct v4l2_subdev_mbus_code_enum *code)
59{
60 return vsp1_subdev_enum_mbus_code(subdev, cfg, code, uif_codes,
61 ARRAY_SIZE(uif_codes));
62}
63
64static int uif_enum_frame_size(struct v4l2_subdev *subdev,
65 struct v4l2_subdev_pad_config *cfg,
66 struct v4l2_subdev_frame_size_enum *fse)
67{
68 return vsp1_subdev_enum_frame_size(subdev, cfg, fse, UIF_MIN_SIZE,
69 UIF_MIN_SIZE, UIF_MAX_SIZE,
70 UIF_MAX_SIZE);
71}
72
73static int uif_set_format(struct v4l2_subdev *subdev,
74 struct v4l2_subdev_pad_config *cfg,
75 struct v4l2_subdev_format *fmt)
76{
77 return vsp1_subdev_set_pad_format(subdev, cfg, fmt, uif_codes,
78 ARRAY_SIZE(uif_codes),
79 UIF_MIN_SIZE, UIF_MIN_SIZE,
80 UIF_MAX_SIZE, UIF_MAX_SIZE);
81}
82
83static int uif_get_selection(struct v4l2_subdev *subdev,
84 struct v4l2_subdev_pad_config *cfg,
85 struct v4l2_subdev_selection *sel)
86{
87 struct vsp1_uif *uif = to_uif(subdev);
88 struct v4l2_subdev_pad_config *config;
89 struct v4l2_mbus_framefmt *format;
90 int ret = 0;
91
92 if (sel->pad != UIF_PAD_SINK)
93 return -EINVAL;
94
95 mutex_lock(&uif->entity.lock);
96
97 config = vsp1_entity_get_pad_config(&uif->entity, cfg, sel->which);
98 if (!config) {
99 ret = -EINVAL;
100 goto done;
101 }
102
103 switch (sel->target) {
104 case V4L2_SEL_TGT_CROP_BOUNDS:
105 case V4L2_SEL_TGT_CROP_DEFAULT:
106 format = vsp1_entity_get_pad_format(&uif->entity, config,
107 UIF_PAD_SINK);
108 sel->r.left = 0;
109 sel->r.top = 0;
110 sel->r.width = format->width;
111 sel->r.height = format->height;
112 break;
113
114 case V4L2_SEL_TGT_CROP:
115 sel->r = *vsp1_entity_get_pad_selection(&uif->entity, config,
116 sel->pad, sel->target);
117 break;
118
119 default:
120 ret = -EINVAL;
121 break;
122 }
123
124done:
125 mutex_unlock(&uif->entity.lock);
126 return ret;
127}
128
129static int uif_set_selection(struct v4l2_subdev *subdev,
130 struct v4l2_subdev_pad_config *cfg,
131 struct v4l2_subdev_selection *sel)
132{
133 struct vsp1_uif *uif = to_uif(subdev);
134 struct v4l2_subdev_pad_config *config;
135 struct v4l2_mbus_framefmt *format;
136 struct v4l2_rect *selection;
137 int ret = 0;
138
139 if (sel->pad != UIF_PAD_SINK ||
140 sel->target != V4L2_SEL_TGT_CROP)
141 return -EINVAL;
142
143 mutex_lock(&uif->entity.lock);
144
145 config = vsp1_entity_get_pad_config(&uif->entity, cfg, sel->which);
146 if (!config) {
147 ret = -EINVAL;
148 goto done;
149 }
150
151
152 format = vsp1_entity_get_pad_format(&uif->entity, config, UIF_PAD_SINK);
153
154 sel->r.left = clamp_t(unsigned int, sel->r.left, 0, format->width - 1);
155 sel->r.top = clamp_t(unsigned int, sel->r.top, 0, format->height - 1);
156 sel->r.width = clamp_t(unsigned int, sel->r.width, UIF_MIN_SIZE,
157 format->width - sel->r.left);
158 sel->r.height = clamp_t(unsigned int, sel->r.height, UIF_MIN_SIZE,
159 format->height - sel->r.top);
160
161
162 selection = vsp1_entity_get_pad_selection(&uif->entity, config,
163 sel->pad, V4L2_SEL_TGT_CROP);
164 *selection = sel->r;
165
166done:
167 mutex_unlock(&uif->entity.lock);
168 return ret;
169}
170
171
172
173
174
175static const struct v4l2_subdev_pad_ops uif_pad_ops = {
176 .init_cfg = vsp1_entity_init_cfg,
177 .enum_mbus_code = uif_enum_mbus_code,
178 .enum_frame_size = uif_enum_frame_size,
179 .get_fmt = vsp1_subdev_get_pad_format,
180 .set_fmt = uif_set_format,
181 .get_selection = uif_get_selection,
182 .set_selection = uif_set_selection,
183};
184
185static const struct v4l2_subdev_ops uif_ops = {
186 .pad = &uif_pad_ops,
187};
188
189
190
191
192
193static void uif_configure_stream(struct vsp1_entity *entity,
194 struct vsp1_pipeline *pipe,
195 struct vsp1_dl_list *dl,
196 struct vsp1_dl_body *dlb)
197{
198 struct vsp1_uif *uif = to_uif(&entity->subdev);
199 const struct v4l2_rect *crop;
200 unsigned int left;
201 unsigned int width;
202
203 vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMPMR,
204 VI6_UIF_DISCOM_DOCMPMR_SEL(9));
205
206 crop = vsp1_entity_get_pad_selection(entity, entity->config,
207 UIF_PAD_SINK, V4L2_SEL_TGT_CROP);
208
209 left = crop->left;
210 width = crop->width;
211
212
213 if (uif->m3w_quirk) {
214 left /= 2;
215 width /= 2;
216 }
217
218 vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMSPXR, left);
219 vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMSPYR, crop->top);
220 vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMSZXR, width);
221 vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMSZYR, crop->height);
222
223 vsp1_uif_write(uif, dlb, VI6_UIF_DISCOM_DOCMCR,
224 VI6_UIF_DISCOM_DOCMCR_CMPR);
225}
226
227static const struct vsp1_entity_operations uif_entity_ops = {
228 .configure_stream = uif_configure_stream,
229};
230
231
232
233
234
235static const struct soc_device_attribute vsp1_r8a7796[] = {
236 { .soc_id = "r8a7796" },
237 { }
238};
239
240struct vsp1_uif *vsp1_uif_create(struct vsp1_device *vsp1, unsigned int index)
241{
242 struct vsp1_uif *uif;
243 char name[6];
244 int ret;
245
246 uif = devm_kzalloc(vsp1->dev, sizeof(*uif), GFP_KERNEL);
247 if (!uif)
248 return ERR_PTR(-ENOMEM);
249
250 if (soc_device_match(vsp1_r8a7796))
251 uif->m3w_quirk = true;
252
253 uif->entity.ops = &uif_entity_ops;
254 uif->entity.type = VSP1_ENTITY_UIF;
255 uif->entity.index = index;
256
257
258 sprintf(name, "uif.%u", index + 4);
259 ret = vsp1_entity_init(vsp1, &uif->entity, name, 2, &uif_ops,
260 MEDIA_ENT_F_PROC_VIDEO_STATISTICS);
261 if (ret < 0)
262 return ERR_PTR(ret);
263
264 return uif;
265}
266
