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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_pipe.h"
18#include "vsp1_sru.h"
19
20#define SRU_MIN_SIZE 4U
21#define SRU_MAX_SIZE 8190U
22
23
24
25
26
27static inline void vsp1_sru_write(struct vsp1_sru *sru,
28 struct vsp1_dl_body *dlb, u32 reg, u32 data)
29{
30 vsp1_dl_body_write(dlb, reg, data);
31}
32
33
34
35
36
37#define V4L2_CID_VSP1_SRU_INTENSITY (V4L2_CID_USER_BASE | 0x1001)
38
39struct vsp1_sru_param {
40 u32 ctrl0;
41 u32 ctrl2;
42};
43
44#define VI6_SRU_CTRL0_PARAMS(p0, p1) \
45 (((p0) << VI6_SRU_CTRL0_PARAM0_SHIFT) | \
46 ((p1) << VI6_SRU_CTRL0_PARAM1_SHIFT))
47
48#define VI6_SRU_CTRL2_PARAMS(p6, p7, p8) \
49 (((p6) << VI6_SRU_CTRL2_PARAM6_SHIFT) | \
50 ((p7) << VI6_SRU_CTRL2_PARAM7_SHIFT) | \
51 ((p8) << VI6_SRU_CTRL2_PARAM8_SHIFT))
52
53static const struct vsp1_sru_param vsp1_sru_params[] = {
54 {
55 .ctrl0 = VI6_SRU_CTRL0_PARAMS(256, 4) | VI6_SRU_CTRL0_EN,
56 .ctrl2 = VI6_SRU_CTRL2_PARAMS(24, 40, 255),
57 }, {
58 .ctrl0 = VI6_SRU_CTRL0_PARAMS(256, 4) | VI6_SRU_CTRL0_EN,
59 .ctrl2 = VI6_SRU_CTRL2_PARAMS(8, 16, 255),
60 }, {
61 .ctrl0 = VI6_SRU_CTRL0_PARAMS(384, 5) | VI6_SRU_CTRL0_EN,
62 .ctrl2 = VI6_SRU_CTRL2_PARAMS(36, 60, 255),
63 }, {
64 .ctrl0 = VI6_SRU_CTRL0_PARAMS(384, 5) | VI6_SRU_CTRL0_EN,
65 .ctrl2 = VI6_SRU_CTRL2_PARAMS(12, 27, 255),
66 }, {
67 .ctrl0 = VI6_SRU_CTRL0_PARAMS(511, 6) | VI6_SRU_CTRL0_EN,
68 .ctrl2 = VI6_SRU_CTRL2_PARAMS(48, 80, 255),
69 }, {
70 .ctrl0 = VI6_SRU_CTRL0_PARAMS(511, 6) | VI6_SRU_CTRL0_EN,
71 .ctrl2 = VI6_SRU_CTRL2_PARAMS(16, 36, 255),
72 },
73};
74
75static int sru_s_ctrl(struct v4l2_ctrl *ctrl)
76{
77 struct vsp1_sru *sru =
78 container_of(ctrl->handler, struct vsp1_sru, ctrls);
79
80 switch (ctrl->id) {
81 case V4L2_CID_VSP1_SRU_INTENSITY:
82 sru->intensity = ctrl->val;
83 break;
84 }
85
86 return 0;
87}
88
89static const struct v4l2_ctrl_ops sru_ctrl_ops = {
90 .s_ctrl = sru_s_ctrl,
91};
92
93static const struct v4l2_ctrl_config sru_intensity_control = {
94 .ops = &sru_ctrl_ops,
95 .id = V4L2_CID_VSP1_SRU_INTENSITY,
96 .name = "Intensity",
97 .type = V4L2_CTRL_TYPE_INTEGER,
98 .min = 1,
99 .max = 6,
100 .def = 1,
101 .step = 1,
102};
103
104
105
106
107
108static int sru_enum_mbus_code(struct v4l2_subdev *subdev,
109 struct v4l2_subdev_state *sd_state,
110 struct v4l2_subdev_mbus_code_enum *code)
111{
112 static const unsigned int codes[] = {
113 MEDIA_BUS_FMT_ARGB8888_1X32,
114 MEDIA_BUS_FMT_AYUV8_1X32,
115 };
116
117 return vsp1_subdev_enum_mbus_code(subdev, sd_state, code, codes,
118 ARRAY_SIZE(codes));
119}
120
121static int sru_enum_frame_size(struct v4l2_subdev *subdev,
122 struct v4l2_subdev_state *sd_state,
123 struct v4l2_subdev_frame_size_enum *fse)
124{
125 struct vsp1_sru *sru = to_sru(subdev);
126 struct v4l2_subdev_state *config;
127 struct v4l2_mbus_framefmt *format;
128 int ret = 0;
129
130 config = vsp1_entity_get_pad_config(&sru->entity, sd_state,
131 fse->which);
132 if (!config)
133 return -EINVAL;
134
135 format = vsp1_entity_get_pad_format(&sru->entity, config, SRU_PAD_SINK);
136
137 mutex_lock(&sru->entity.lock);
138
139 if (fse->index || fse->code != format->code) {
140 ret = -EINVAL;
141 goto done;
142 }
143
144 if (fse->pad == SRU_PAD_SINK) {
145 fse->min_width = SRU_MIN_SIZE;
146 fse->max_width = SRU_MAX_SIZE;
147 fse->min_height = SRU_MIN_SIZE;
148 fse->max_height = SRU_MAX_SIZE;
149 } else {
150 fse->min_width = format->width;
151 fse->min_height = format->height;
152 if (format->width <= SRU_MAX_SIZE / 2 &&
153 format->height <= SRU_MAX_SIZE / 2) {
154 fse->max_width = format->width * 2;
155 fse->max_height = format->height * 2;
156 } else {
157 fse->max_width = format->width;
158 fse->max_height = format->height;
159 }
160 }
161
162done:
163 mutex_unlock(&sru->entity.lock);
164 return ret;
165}
166
167static void sru_try_format(struct vsp1_sru *sru,
168 struct v4l2_subdev_state *sd_state,
169 unsigned int pad, struct v4l2_mbus_framefmt *fmt)
170{
171 struct v4l2_mbus_framefmt *format;
172 unsigned int input_area;
173 unsigned int output_area;
174
175 switch (pad) {
176 case SRU_PAD_SINK:
177
178 if (fmt->code != MEDIA_BUS_FMT_ARGB8888_1X32 &&
179 fmt->code != MEDIA_BUS_FMT_AYUV8_1X32)
180 fmt->code = MEDIA_BUS_FMT_AYUV8_1X32;
181
182 fmt->width = clamp(fmt->width, SRU_MIN_SIZE, SRU_MAX_SIZE);
183 fmt->height = clamp(fmt->height, SRU_MIN_SIZE, SRU_MAX_SIZE);
184 break;
185
186 case SRU_PAD_SOURCE:
187
188 format = vsp1_entity_get_pad_format(&sru->entity, sd_state,
189 SRU_PAD_SINK);
190 fmt->code = format->code;
191
192
193
194
195
196
197
198
199 input_area = format->width * format->height;
200 output_area = min(fmt->width, SRU_MAX_SIZE)
201 * min(fmt->height, SRU_MAX_SIZE);
202
203 if (fmt->width <= SRU_MAX_SIZE / 2 &&
204 fmt->height <= SRU_MAX_SIZE / 2 &&
205 output_area > input_area * 9 / 4) {
206 fmt->width = format->width * 2;
207 fmt->height = format->height * 2;
208 } else {
209 fmt->width = format->width;
210 fmt->height = format->height;
211 }
212 break;
213 }
214
215 fmt->field = V4L2_FIELD_NONE;
216 fmt->colorspace = V4L2_COLORSPACE_SRGB;
217}
218
219static int sru_set_format(struct v4l2_subdev *subdev,
220 struct v4l2_subdev_state *sd_state,
221 struct v4l2_subdev_format *fmt)
222{
223 struct vsp1_sru *sru = to_sru(subdev);
224 struct v4l2_subdev_state *config;
225 struct v4l2_mbus_framefmt *format;
226 int ret = 0;
227
228 mutex_lock(&sru->entity.lock);
229
230 config = vsp1_entity_get_pad_config(&sru->entity, sd_state,
231 fmt->which);
232 if (!config) {
233 ret = -EINVAL;
234 goto done;
235 }
236
237 sru_try_format(sru, config, fmt->pad, &fmt->format);
238
239 format = vsp1_entity_get_pad_format(&sru->entity, config, fmt->pad);
240 *format = fmt->format;
241
242 if (fmt->pad == SRU_PAD_SINK) {
243
244 format = vsp1_entity_get_pad_format(&sru->entity, config,
245 SRU_PAD_SOURCE);
246 *format = fmt->format;
247
248 sru_try_format(sru, config, SRU_PAD_SOURCE, format);
249 }
250
251done:
252 mutex_unlock(&sru->entity.lock);
253 return ret;
254}
255
256static const struct v4l2_subdev_pad_ops sru_pad_ops = {
257 .init_cfg = vsp1_entity_init_cfg,
258 .enum_mbus_code = sru_enum_mbus_code,
259 .enum_frame_size = sru_enum_frame_size,
260 .get_fmt = vsp1_subdev_get_pad_format,
261 .set_fmt = sru_set_format,
262};
263
264static const struct v4l2_subdev_ops sru_ops = {
265 .pad = &sru_pad_ops,
266};
267
268
269
270
271
272static void sru_configure_stream(struct vsp1_entity *entity,
273 struct vsp1_pipeline *pipe,
274 struct vsp1_dl_list *dl,
275 struct vsp1_dl_body *dlb)
276{
277 const struct vsp1_sru_param *param;
278 struct vsp1_sru *sru = to_sru(&entity->subdev);
279 struct v4l2_mbus_framefmt *input;
280 struct v4l2_mbus_framefmt *output;
281 u32 ctrl0;
282
283 input = vsp1_entity_get_pad_format(&sru->entity, sru->entity.config,
284 SRU_PAD_SINK);
285 output = vsp1_entity_get_pad_format(&sru->entity, sru->entity.config,
286 SRU_PAD_SOURCE);
287
288 if (input->code == MEDIA_BUS_FMT_ARGB8888_1X32)
289 ctrl0 = VI6_SRU_CTRL0_PARAM2 | VI6_SRU_CTRL0_PARAM3
290 | VI6_SRU_CTRL0_PARAM4;
291 else
292 ctrl0 = VI6_SRU_CTRL0_PARAM3;
293
294 if (input->width != output->width)
295 ctrl0 |= VI6_SRU_CTRL0_MODE_UPSCALE;
296
297 param = &vsp1_sru_params[sru->intensity - 1];
298
299 ctrl0 |= param->ctrl0;
300
301 vsp1_sru_write(sru, dlb, VI6_SRU_CTRL0, ctrl0);
302 vsp1_sru_write(sru, dlb, VI6_SRU_CTRL1, VI6_SRU_CTRL1_PARAM5);
303 vsp1_sru_write(sru, dlb, VI6_SRU_CTRL2, param->ctrl2);
304}
305
306static unsigned int sru_max_width(struct vsp1_entity *entity,
307 struct vsp1_pipeline *pipe)
308{
309 struct vsp1_sru *sru = to_sru(&entity->subdev);
310 struct v4l2_mbus_framefmt *input;
311 struct v4l2_mbus_framefmt *output;
312
313 input = vsp1_entity_get_pad_format(&sru->entity, sru->entity.config,
314 SRU_PAD_SINK);
315 output = vsp1_entity_get_pad_format(&sru->entity, sru->entity.config,
316 SRU_PAD_SOURCE);
317
318
319
320
321
322
323 if (input->width != output->width)
324 return 512;
325 else
326 return 256;
327}
328
329static void sru_partition(struct vsp1_entity *entity,
330 struct vsp1_pipeline *pipe,
331 struct vsp1_partition *partition,
332 unsigned int partition_idx,
333 struct vsp1_partition_window *window)
334{
335 struct vsp1_sru *sru = to_sru(&entity->subdev);
336 struct v4l2_mbus_framefmt *input;
337 struct v4l2_mbus_framefmt *output;
338
339 input = vsp1_entity_get_pad_format(&sru->entity, sru->entity.config,
340 SRU_PAD_SINK);
341 output = vsp1_entity_get_pad_format(&sru->entity, sru->entity.config,
342 SRU_PAD_SOURCE);
343
344
345 if (input->width != output->width) {
346 window->width /= 2;
347 window->left /= 2;
348 }
349
350 partition->sru = *window;
351}
352
353static const struct vsp1_entity_operations sru_entity_ops = {
354 .configure_stream = sru_configure_stream,
355 .max_width = sru_max_width,
356 .partition = sru_partition,
357};
358
359
360
361
362
363struct vsp1_sru *vsp1_sru_create(struct vsp1_device *vsp1)
364{
365 struct vsp1_sru *sru;
366 int ret;
367
368 sru = devm_kzalloc(vsp1->dev, sizeof(*sru), GFP_KERNEL);
369 if (sru == NULL)
370 return ERR_PTR(-ENOMEM);
371
372 sru->entity.ops = &sru_entity_ops;
373 sru->entity.type = VSP1_ENTITY_SRU;
374
375 ret = vsp1_entity_init(vsp1, &sru->entity, "sru", 2, &sru_ops,
376 MEDIA_ENT_F_PROC_VIDEO_SCALER);
377 if (ret < 0)
378 return ERR_PTR(ret);
379
380
381 v4l2_ctrl_handler_init(&sru->ctrls, 1);
382 v4l2_ctrl_new_custom(&sru->ctrls, &sru_intensity_control, NULL);
383
384 sru->intensity = 1;
385
386 sru->entity.subdev.ctrl_handler = &sru->ctrls;
387
388 if (sru->ctrls.error) {
389 dev_err(vsp1->dev, "sru: failed to initialize controls\n");
390 ret = sru->ctrls.error;
391 vsp1_entity_destroy(&sru->entity);
392 return ERR_PTR(ret);
393 }
394
395 return sru;
396}
397
