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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/media/v4l2-core/v4l2-common.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  *	Video for Linux Two
34  *
....@@ -7,14 +8,8 @@
78  *	This file replaces the videodev.c file that comes with the
89  *	regular kernel distribution.
910  *
10
- *	This program is free software; you can redistribute it and/or
11
- *	modify it under the terms of the GNU General Public License
12
- *	as published by the Free Software Foundation; either version
13
- *	2 of the License, or (at your option) any later version.
14
- *
1511  * Author:	Bill Dirks <bill@thedirks.org>
1612  *		based on code by Alan Cox, <alan@cymru.net>
17
- *
1813  */
1914 
2015 /*
....@@ -22,11 +17,6 @@
2217  *
2318  *	A generic video device interface for the LINUX operating system
2419  *	using a set of device structures/vectors for low level operations.
25
- *
26
- *		This program is free software; you can redistribute it and/or
27
- *		modify it under the terms of the GNU General Public License
28
- *		as published by the Free Software Foundation; either version
29
- *		2 of the License, or (at your option) any later version.
3020  *
3121  * Author:	Alan Cox, <alan@lxorguk.ukuu.org.uk>
3222  *
....@@ -50,12 +40,7 @@
5040 #include <linux/mm.h>
5141 #include <linux/string.h>
5242 #include <linux/errno.h>
53
-#include <linux/i2c.h>
54
-#if defined(CONFIG_SPI)
55
-#include <linux/spi/spi.h>
56
-#endif
5743 #include <linux/uaccess.h>
58
-#include <asm/pgtable.h>
5944 #include <asm/io.h>
6045 #include <asm/div64.h>
6146 #include <media/v4l2-common.h>
....@@ -63,10 +48,6 @@
6348 #include <media/v4l2-ctrls.h>
6449 
6550 #include <linux/videodev2.h>
66
-
67
-MODULE_AUTHOR("Bill Dirks, Justin Schoeman, Gerd Knorr");
68
-MODULE_DESCRIPTION("misc helper functions for v4l2 device drivers");
69
-MODULE_LICENSE("GPL");
7051 
7152 /*
7253  *
....@@ -100,205 +81,10 @@
10081 	qctrl->step = step;
10182 	qctrl->default_value = def;
10283 	qctrl->reserved[0] = qctrl->reserved[1] = 0;
103
-	strlcpy(qctrl->name, name, sizeof(qctrl->name));
84
+	strscpy(qctrl->name, name, sizeof(qctrl->name));
10485 	return 0;
10586 }
10687 EXPORT_SYMBOL(v4l2_ctrl_query_fill);
107
-
108
-/* I2C Helper functions */
109
-
110
-#if IS_ENABLED(CONFIG_I2C)
111
-
112
-void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
113
-		const struct v4l2_subdev_ops *ops)
114
-{
115
-	v4l2_subdev_init(sd, ops);
116
-	sd->flags |= V4L2_SUBDEV_FL_IS_I2C;
117
-	/* the owner is the same as the i2c_client's driver owner */
118
-	sd->owner = client->dev.driver->owner;
119
-	sd->dev = &client->dev;
120
-	/* i2c_client and v4l2_subdev point to one another */
121
-	v4l2_set_subdevdata(sd, client);
122
-	i2c_set_clientdata(client, sd);
123
-	/* initialize name */
124
-	snprintf(sd->name, sizeof(sd->name), "%s %d-%04x",
125
-		client->dev.driver->name, i2c_adapter_id(client->adapter),
126
-		client->addr);
127
-}
128
-EXPORT_SYMBOL_GPL(v4l2_i2c_subdev_init);
129
-
130
-/* Load an i2c sub-device. */
131
-struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
132
-		struct i2c_adapter *adapter, struct i2c_board_info *info,
133
-		const unsigned short *probe_addrs)
134
-{
135
-	struct v4l2_subdev *sd = NULL;
136
-	struct i2c_client *client;
137
-
138
-	BUG_ON(!v4l2_dev);
139
-
140
-	request_module(I2C_MODULE_PREFIX "%s", info->type);
141
-
142
-	/* Create the i2c client */
143
-	if (info->addr == 0 && probe_addrs)
144
-		client = i2c_new_probed_device(adapter, info, probe_addrs,
145
-					       NULL);
146
-	else
147
-		client = i2c_new_device(adapter, info);
148
-
149
-	/* Note: by loading the module first we are certain that c->driver
150
-	   will be set if the driver was found. If the module was not loaded
151
-	   first, then the i2c core tries to delay-load the module for us,
152
-	   and then c->driver is still NULL until the module is finally
153
-	   loaded. This delay-load mechanism doesn't work if other drivers
154
-	   want to use the i2c device, so explicitly loading the module
155
-	   is the best alternative. */
156
-	if (client == NULL || client->dev.driver == NULL)
157
-		goto error;
158
-
159
-	/* Lock the module so we can safely get the v4l2_subdev pointer */
160
-	if (!try_module_get(client->dev.driver->owner))
161
-		goto error;
162
-	sd = i2c_get_clientdata(client);
163
-
164
-	/* Register with the v4l2_device which increases the module's
165
-	   use count as well. */
166
-	if (v4l2_device_register_subdev(v4l2_dev, sd))
167
-		sd = NULL;
168
-	/* Decrease the module use count to match the first try_module_get. */
169
-	module_put(client->dev.driver->owner);
170
-
171
-error:
172
-	/* If we have a client but no subdev, then something went wrong and
173
-	   we must unregister the client. */
174
-	if (client && sd == NULL)
175
-		i2c_unregister_device(client);
176
-	return sd;
177
-}
178
-EXPORT_SYMBOL_GPL(v4l2_i2c_new_subdev_board);
179
-
180
-struct v4l2_subdev *v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
181
-		struct i2c_adapter *adapter, const char *client_type,
182
-		u8 addr, const unsigned short *probe_addrs)
183
-{
184
-	struct i2c_board_info info;
185
-
186
-	/* Setup the i2c board info with the device type and
187
-	   the device address. */
188
-	memset(&info, 0, sizeof(info));
189
-	strlcpy(info.type, client_type, sizeof(info.type));
190
-	info.addr = addr;
191
-
192
-	return v4l2_i2c_new_subdev_board(v4l2_dev, adapter, &info, probe_addrs);
193
-}
194
-EXPORT_SYMBOL_GPL(v4l2_i2c_new_subdev);
195
-
196
-/* Return i2c client address of v4l2_subdev. */
197
-unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd)
198
-{
199
-	struct i2c_client *client = v4l2_get_subdevdata(sd);
200
-
201
-	return client ? client->addr : I2C_CLIENT_END;
202
-}
203
-EXPORT_SYMBOL_GPL(v4l2_i2c_subdev_addr);
204
-
205
-/* Return a list of I2C tuner addresses to probe. Use only if the tuner
206
-   addresses are unknown. */
207
-const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type)
208
-{
209
-	static const unsigned short radio_addrs[] = {
210
-#if IS_ENABLED(CONFIG_MEDIA_TUNER_TEA5761)
211
-		0x10,
212
-#endif
213
-		0x60,
214
-		I2C_CLIENT_END
215
-	};
216
-	static const unsigned short demod_addrs[] = {
217
-		0x42, 0x43, 0x4a, 0x4b,
218
-		I2C_CLIENT_END
219
-	};
220
-	static const unsigned short tv_addrs[] = {
221
-		0x42, 0x43, 0x4a, 0x4b,		/* tda8290 */
222
-		0x60, 0x61, 0x62, 0x63, 0x64,
223
-		I2C_CLIENT_END
224
-	};
225
-
226
-	switch (type) {
227
-	case ADDRS_RADIO:
228
-		return radio_addrs;
229
-	case ADDRS_DEMOD:
230
-		return demod_addrs;
231
-	case ADDRS_TV:
232
-		return tv_addrs;
233
-	case ADDRS_TV_WITH_DEMOD:
234
-		return tv_addrs + 4;
235
-	}
236
-	return NULL;
237
-}
238
-EXPORT_SYMBOL_GPL(v4l2_i2c_tuner_addrs);
239
-
240
-#endif /* defined(CONFIG_I2C) */
241
-
242
-#if defined(CONFIG_SPI)
243
-
244
-/* Load an spi sub-device. */
245
-
246
-void v4l2_spi_subdev_init(struct v4l2_subdev *sd, struct spi_device *spi,
247
-		const struct v4l2_subdev_ops *ops)
248
-{
249
-	v4l2_subdev_init(sd, ops);
250
-	sd->flags |= V4L2_SUBDEV_FL_IS_SPI;
251
-	/* the owner is the same as the spi_device's driver owner */
252
-	sd->owner = spi->dev.driver->owner;
253
-	sd->dev = &spi->dev;
254
-	/* spi_device and v4l2_subdev point to one another */
255
-	v4l2_set_subdevdata(sd, spi);
256
-	spi_set_drvdata(spi, sd);
257
-	/* initialize name */
258
-	strlcpy(sd->name, spi->dev.driver->name, sizeof(sd->name));
259
-}
260
-EXPORT_SYMBOL_GPL(v4l2_spi_subdev_init);
261
-
262
-struct v4l2_subdev *v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev,
263
-		struct spi_master *master, struct spi_board_info *info)
264
-{
265
-	struct v4l2_subdev *sd = NULL;
266
-	struct spi_device *spi = NULL;
267
-
268
-	BUG_ON(!v4l2_dev);
269
-
270
-	if (info->modalias[0])
271
-		request_module(info->modalias);
272
-
273
-	spi = spi_new_device(master, info);
274
-
275
-	if (spi == NULL || spi->dev.driver == NULL)
276
-		goto error;
277
-
278
-	if (!try_module_get(spi->dev.driver->owner))
279
-		goto error;
280
-
281
-	sd = spi_get_drvdata(spi);
282
-
283
-	/* Register with the v4l2_device which increases the module's
284
-	   use count as well. */
285
-	if (v4l2_device_register_subdev(v4l2_dev, sd))
286
-		sd = NULL;
287
-
288
-	/* Decrease the module use count to match the first try_module_get. */
289
-	module_put(spi->dev.driver->owner);
290
-
291
-error:
292
-	/* If we have a client but no subdev, then something went wrong and
293
-	   we must unregister the client. */
294
-	if (!sd)
295
-		spi_unregister_device(spi);
296
-
297
-	return sd;
298
-}
299
-EXPORT_SYMBOL_GPL(v4l2_spi_new_subdev);
300
-
301
-#endif /* defined(CONFIG_SPI) */
30288 
30389 /* Clamp x to be between min and max, aligned to a multiple of 2^align.  min
30490  * and max don't have to be aligned, but there must be at least one valid
....@@ -316,6 +102,16 @@
316102 	/* Round to nearest aligned value */
317103 	if (align)
318104 		x = (x + (1 << (align - 1))) & mask;
105
+
106
+	return x;
107
+}
108
+
109
+static unsigned int clamp_roundup(unsigned int x, unsigned int min,
110
+				   unsigned int max, unsigned int alignment)
111
+{
112
+	x = clamp(x, min, max);
113
+	if (alignment)
114
+		x = round_up(x, alignment);
319115 
320116 	return x;
321117 }
....@@ -387,16 +183,6 @@
387183 }
388184 EXPORT_SYMBOL_GPL(__v4l2_find_nearest_size);
389185 
390
-void v4l2_get_timestamp(struct timeval *tv)
391
-{
392
-	struct timespec ts;
393
-
394
-	ktime_get_ts(&ts);
395
-	tv->tv_sec = ts.tv_sec;
396
-	tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC;
397
-}
398
-EXPORT_SYMBOL_GPL(v4l2_get_timestamp);
399
-
400186 int v4l2_g_parm_cap(struct video_device *vdev,
401187 		    struct v4l2_subdev *sd, struct v4l2_streamparm *a)
402188 {
....@@ -444,3 +230,214 @@
444230 	return ret;
445231 }
446232 EXPORT_SYMBOL_GPL(v4l2_s_parm_cap);
233
+
234
+const struct v4l2_format_info *v4l2_format_info(u32 format)
235
+{
236
+	static const struct v4l2_format_info formats[] = {
237
+		/* RGB formats */
238
+		{ .format = V4L2_PIX_FMT_BGR24,   .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 3, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
239
+		{ .format = V4L2_PIX_FMT_RGB24,   .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 3, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
240
+		{ .format = V4L2_PIX_FMT_HSV24,   .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 3, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
241
+		{ .format = V4L2_PIX_FMT_BGR32,   .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
242
+		{ .format = V4L2_PIX_FMT_XBGR32,  .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
243
+		{ .format = V4L2_PIX_FMT_BGRX32,  .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
244
+		{ .format = V4L2_PIX_FMT_RGB32,   .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
245
+		{ .format = V4L2_PIX_FMT_XRGB32,  .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
246
+		{ .format = V4L2_PIX_FMT_RGBX32,  .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
247
+		{ .format = V4L2_PIX_FMT_HSV32,   .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
248
+		{ .format = V4L2_PIX_FMT_ARGB32,  .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
249
+		{ .format = V4L2_PIX_FMT_RGBA32,  .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
250
+		{ .format = V4L2_PIX_FMT_ABGR32,  .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
251
+		{ .format = V4L2_PIX_FMT_BGRA32,  .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
252
+		{ .format = V4L2_PIX_FMT_RGB565,  .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
253
+		{ .format = V4L2_PIX_FMT_RGB555,  .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
254
+		{ .format = V4L2_PIX_FMT_BGR666,  .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
255
+
256
+		/* YUV packed formats */
257
+		{ .format = V4L2_PIX_FMT_YUYV,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 },
258
+		{ .format = V4L2_PIX_FMT_YVYU,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 },
259
+		{ .format = V4L2_PIX_FMT_UYVY,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 },
260
+		{ .format = V4L2_PIX_FMT_VYUY,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 2, .vdiv = 1 },
261
+
262
+		/* YUV planar formats */
263
+		{ .format = V4L2_PIX_FMT_NV12,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 2 },
264
+		{ .format = V4L2_PIX_FMT_NV21,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 2 },
265
+		{ .format = V4L2_PIX_FMT_NV16,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 1 },
266
+		{ .format = V4L2_PIX_FMT_NV61,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 1 },
267
+		{ .format = V4L2_PIX_FMT_NV24,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 1, .vdiv = 1 },
268
+		{ .format = V4L2_PIX_FMT_NV42,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 1, .vdiv = 1 },
269
+
270
+		{ .format = V4L2_PIX_FMT_YUV410,  .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 4, .vdiv = 4 },
271
+		{ .format = V4L2_PIX_FMT_YVU410,  .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 4, .vdiv = 4 },
272
+		{ .format = V4L2_PIX_FMT_YUV411P, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 4, .vdiv = 1 },
273
+		{ .format = V4L2_PIX_FMT_YUV420,  .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 2, .vdiv = 2 },
274
+		{ .format = V4L2_PIX_FMT_YVU420,  .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 2, .vdiv = 2 },
275
+		{ .format = V4L2_PIX_FMT_YUV422P, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 2, .vdiv = 1 },
276
+		{ .format = V4L2_PIX_FMT_GREY,    .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
277
+
278
+		/* YUV planar formats, non contiguous variant */
279
+		{ .format = V4L2_PIX_FMT_YUV420M, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 3, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 2, .vdiv = 2 },
280
+		{ .format = V4L2_PIX_FMT_YVU420M, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 3, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 2, .vdiv = 2 },
281
+		{ .format = V4L2_PIX_FMT_YUV422M, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 3, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 2, .vdiv = 1 },
282
+		{ .format = V4L2_PIX_FMT_YVU422M, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 3, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 2, .vdiv = 1 },
283
+		{ .format = V4L2_PIX_FMT_YUV444M, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 3, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 1, .vdiv = 1 },
284
+		{ .format = V4L2_PIX_FMT_YVU444M, .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 3, .comp_planes = 3, .bpp = { 1, 1, 1, 0 }, .hdiv = 1, .vdiv = 1 },
285
+
286
+		{ .format = V4L2_PIX_FMT_NV12M,   .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 2, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 2 },
287
+		{ .format = V4L2_PIX_FMT_NV21M,   .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 2, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 2 },
288
+		{ .format = V4L2_PIX_FMT_NV16M,   .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 2, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 1 },
289
+		{ .format = V4L2_PIX_FMT_NV61M,   .pixel_enc = V4L2_PIXEL_ENC_YUV, .mem_planes = 2, .comp_planes = 2, .bpp = { 1, 2, 0, 0 }, .hdiv = 2, .vdiv = 1 },
290
+
291
+		/* Bayer RGB formats */
292
+		{ .format = V4L2_PIX_FMT_SBGGR8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
293
+		{ .format = V4L2_PIX_FMT_SGBRG8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
294
+		{ .format = V4L2_PIX_FMT_SGRBG8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
295
+		{ .format = V4L2_PIX_FMT_SRGGB8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
296
+		{ .format = V4L2_PIX_FMT_SBGGR10,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
297
+		{ .format = V4L2_PIX_FMT_SGBRG10,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
298
+		{ .format = V4L2_PIX_FMT_SGRBG10,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
299
+		{ .format = V4L2_PIX_FMT_SRGGB10,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
300
+		{ .format = V4L2_PIX_FMT_SBGGR10ALAW8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
301
+		{ .format = V4L2_PIX_FMT_SGBRG10ALAW8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
302
+		{ .format = V4L2_PIX_FMT_SGRBG10ALAW8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
303
+		{ .format = V4L2_PIX_FMT_SRGGB10ALAW8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
304
+		{ .format = V4L2_PIX_FMT_SBGGR10DPCM8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
305
+		{ .format = V4L2_PIX_FMT_SGBRG10DPCM8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
306
+		{ .format = V4L2_PIX_FMT_SGRBG10DPCM8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
307
+		{ .format = V4L2_PIX_FMT_SRGGB10DPCM8,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 1, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
308
+		{ .format = V4L2_PIX_FMT_SBGGR12,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
309
+		{ .format = V4L2_PIX_FMT_SGBRG12,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
310
+		{ .format = V4L2_PIX_FMT_SGRBG12,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
311
+		{ .format = V4L2_PIX_FMT_SRGGB12,	.pixel_enc = V4L2_PIXEL_ENC_BAYER, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .hdiv = 1, .vdiv = 1 },
312
+	};
313
+	unsigned int i;
314
+
315
+	for (i = 0; i < ARRAY_SIZE(formats); ++i)
316
+		if (formats[i].format == format)
317
+			return &formats[i];
318
+	return NULL;
319
+}
320
+EXPORT_SYMBOL(v4l2_format_info);
321
+
322
+static inline unsigned int v4l2_format_block_width(const struct v4l2_format_info *info, int plane)
323
+{
324
+	if (!info->block_w[plane])
325
+		return 1;
326
+	return info->block_w[plane];
327
+}
328
+
329
+static inline unsigned int v4l2_format_block_height(const struct v4l2_format_info *info, int plane)
330
+{
331
+	if (!info->block_h[plane])
332
+		return 1;
333
+	return info->block_h[plane];
334
+}
335
+
336
+void v4l2_apply_frmsize_constraints(u32 *width, u32 *height,
337
+				    const struct v4l2_frmsize_stepwise *frmsize)
338
+{
339
+	if (!frmsize)
340
+		return;
341
+
342
+	/*
343
+	 * Clamp width/height to meet min/max constraints and round it up to
344
+	 * macroblock alignment.
345
+	 */
346
+	*width = clamp_roundup(*width, frmsize->min_width, frmsize->max_width,
347
+			       frmsize->step_width);
348
+	*height = clamp_roundup(*height, frmsize->min_height, frmsize->max_height,
349
+				frmsize->step_height);
350
+}
351
+EXPORT_SYMBOL_GPL(v4l2_apply_frmsize_constraints);
352
+
353
+int v4l2_fill_pixfmt_mp(struct v4l2_pix_format_mplane *pixfmt,
354
+			u32 pixelformat, u32 width, u32 height)
355
+{
356
+	const struct v4l2_format_info *info;
357
+	struct v4l2_plane_pix_format *plane;
358
+	int i;
359
+
360
+	info = v4l2_format_info(pixelformat);
361
+	if (!info)
362
+		return -EINVAL;
363
+
364
+	pixfmt->width = width;
365
+	pixfmt->height = height;
366
+	pixfmt->pixelformat = pixelformat;
367
+	pixfmt->num_planes = info->mem_planes;
368
+
369
+	if (info->mem_planes == 1) {
370
+		plane = &pixfmt->plane_fmt[0];
371
+		plane->bytesperline = ALIGN(width, v4l2_format_block_width(info, 0)) * info->bpp[0];
372
+		plane->sizeimage = 0;
373
+
374
+		for (i = 0; i < info->comp_planes; i++) {
375
+			unsigned int hdiv = (i == 0) ? 1 : info->hdiv;
376
+			unsigned int vdiv = (i == 0) ? 1 : info->vdiv;
377
+			unsigned int aligned_width;
378
+			unsigned int aligned_height;
379
+
380
+			aligned_width = ALIGN(width, v4l2_format_block_width(info, i));
381
+			aligned_height = ALIGN(height, v4l2_format_block_height(info, i));
382
+
383
+			plane->sizeimage += info->bpp[i] *
384
+				DIV_ROUND_UP(aligned_width, hdiv) *
385
+				DIV_ROUND_UP(aligned_height, vdiv);
386
+		}
387
+	} else {
388
+		for (i = 0; i < info->comp_planes; i++) {
389
+			unsigned int hdiv = (i == 0) ? 1 : info->hdiv;
390
+			unsigned int vdiv = (i == 0) ? 1 : info->vdiv;
391
+			unsigned int aligned_width;
392
+			unsigned int aligned_height;
393
+
394
+			aligned_width = ALIGN(width, v4l2_format_block_width(info, i));
395
+			aligned_height = ALIGN(height, v4l2_format_block_height(info, i));
396
+
397
+			plane = &pixfmt->plane_fmt[i];
398
+			plane->bytesperline =
399
+				info->bpp[i] * DIV_ROUND_UP(aligned_width, hdiv);
400
+			plane->sizeimage =
401
+				plane->bytesperline * DIV_ROUND_UP(aligned_height, vdiv);
402
+		}
403
+	}
404
+	return 0;
405
+}
406
+EXPORT_SYMBOL_GPL(v4l2_fill_pixfmt_mp);
407
+
408
+int v4l2_fill_pixfmt(struct v4l2_pix_format *pixfmt, u32 pixelformat,
409
+		     u32 width, u32 height)
410
+{
411
+	const struct v4l2_format_info *info;
412
+	int i;
413
+
414
+	info = v4l2_format_info(pixelformat);
415
+	if (!info)
416
+		return -EINVAL;
417
+
418
+	/* Single planar API cannot be used for multi plane formats. */
419
+	if (info->mem_planes > 1)
420
+		return -EINVAL;
421
+
422
+	pixfmt->width = width;
423
+	pixfmt->height = height;
424
+	pixfmt->pixelformat = pixelformat;
425
+	pixfmt->bytesperline = ALIGN(width, v4l2_format_block_width(info, 0)) * info->bpp[0];
426
+	pixfmt->sizeimage = 0;
427
+
428
+	for (i = 0; i < info->comp_planes; i++) {
429
+		unsigned int hdiv = (i == 0) ? 1 : info->hdiv;
430
+		unsigned int vdiv = (i == 0) ? 1 : info->vdiv;
431
+		unsigned int aligned_width;
432
+		unsigned int aligned_height;
433
+
434
+		aligned_width = ALIGN(width, v4l2_format_block_width(info, i));
435
+		aligned_height = ALIGN(height, v4l2_format_block_height(info, i));
436
+
437
+		pixfmt->sizeimage += info->bpp[i] *
438
+			DIV_ROUND_UP(aligned_width, hdiv) *
439
+			DIV_ROUND_UP(aligned_height, vdiv);
440
+	}
441
+	return 0;
442
+}
443
+EXPORT_SYMBOL_GPL(v4l2_fill_pixfmt);