1 // SPDX-License-Identifier: GPL-2.0
3  * camss-video.c
5  * Qualcomm MSM Camera Subsystem - V4L2 device node
7  * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
8  * Copyright (C) 2015-2018 Linaro Ltd.
11 #include <media/media-entity.h>
12 #include <media/v4l2-dev.h>
13 #include <media/v4l2-device.h>
14 #include <media/v4l2-ioctl.h>
15 #include <media/v4l2-mc.h>
16 #include <media/videobuf2-dma-sg.h>
18 #include "camss-video.h"
21 #define CAMSS_FRAME_MIN_WIDTH		1
23 #define CAMSS_FRAME_MIN_HEIGHT		1
33  * struct camss_format_info - ISP media bus format information
51 	{ MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_UYVY, 1,
52 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
53 	{ MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_VYUY, 1,
54 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
55 	{ MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_YUYV, 1,
56 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
57 	{ MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_YVYU, 1,
58 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
59 	{ MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_PIX_FMT_SBGGR8, 1,
60 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
61 	{ MEDIA_BUS_FMT_SGBRG8_1X8, V4L2_PIX_FMT_SGBRG8, 1,
62 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
63 	{ MEDIA_BUS_FMT_SGRBG8_1X8, V4L2_PIX_FMT_SGRBG8, 1,
64 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
65 	{ MEDIA_BUS_FMT_SRGGB8_1X8, V4L2_PIX_FMT_SRGGB8, 1,
66 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
67 	{ MEDIA_BUS_FMT_SBGGR10_1X10, V4L2_PIX_FMT_SBGGR10P, 1,
68 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
69 	{ MEDIA_BUS_FMT_SGBRG10_1X10, V4L2_PIX_FMT_SGBRG10P, 1,
70 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
71 	{ MEDIA_BUS_FMT_SGRBG10_1X10, V4L2_PIX_FMT_SGRBG10P, 1,
72 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
73 	{ MEDIA_BUS_FMT_SRGGB10_1X10, V4L2_PIX_FMT_SRGGB10P, 1,
74 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
75 	{ MEDIA_BUS_FMT_SBGGR12_1X12, V4L2_PIX_FMT_SBGGR12P, 1,
76 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
77 	{ MEDIA_BUS_FMT_SGBRG12_1X12, V4L2_PIX_FMT_SGBRG12P, 1,
78 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
79 	{ MEDIA_BUS_FMT_SGRBG12_1X12, V4L2_PIX_FMT_SGRBG12P, 1,
80 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
81 	{ MEDIA_BUS_FMT_SRGGB12_1X12, V4L2_PIX_FMT_SRGGB12P, 1,
82 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
83 	{ MEDIA_BUS_FMT_Y10_1X10, V4L2_PIX_FMT_Y10P, 1,
84 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
88 	{ MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_UYVY, 1,
89 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
90 	{ MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_VYUY, 1,
91 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
92 	{ MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_YUYV, 1,
93 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
94 	{ MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_YVYU, 1,
95 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
96 	{ MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_PIX_FMT_SBGGR8, 1,
97 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
98 	{ MEDIA_BUS_FMT_SGBRG8_1X8, V4L2_PIX_FMT_SGBRG8, 1,
99 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
100 	{ MEDIA_BUS_FMT_SGRBG8_1X8, V4L2_PIX_FMT_SGRBG8, 1,
101 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
102 	{ MEDIA_BUS_FMT_SRGGB8_1X8, V4L2_PIX_FMT_SRGGB8, 1,
103 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
104 	{ MEDIA_BUS_FMT_SBGGR10_1X10, V4L2_PIX_FMT_SBGGR10P, 1,
105 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
106 	{ MEDIA_BUS_FMT_SGBRG10_1X10, V4L2_PIX_FMT_SGBRG10P, 1,
107 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
108 	{ MEDIA_BUS_FMT_SGRBG10_1X10, V4L2_PIX_FMT_SGRBG10P, 1,
109 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
110 	{ MEDIA_BUS_FMT_SRGGB10_1X10, V4L2_PIX_FMT_SRGGB10P, 1,
111 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
112 	{ MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_PIX_FMT_SBGGR10, 1,
113 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
114 	{ MEDIA_BUS_FMT_SBGGR12_1X12, V4L2_PIX_FMT_SBGGR12P, 1,
115 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
116 	{ MEDIA_BUS_FMT_SGBRG12_1X12, V4L2_PIX_FMT_SGBRG12P, 1,
117 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
118 	{ MEDIA_BUS_FMT_SGRBG12_1X12, V4L2_PIX_FMT_SGRBG12P, 1,
119 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
120 	{ MEDIA_BUS_FMT_SRGGB12_1X12, V4L2_PIX_FMT_SRGGB12P, 1,
121 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
122 	{ MEDIA_BUS_FMT_SBGGR14_1X14, V4L2_PIX_FMT_SBGGR14P, 1,
123 	  { { 1, 1 } }, { { 1, 1 } }, { 14 } },
124 	{ MEDIA_BUS_FMT_SGBRG14_1X14, V4L2_PIX_FMT_SGBRG14P, 1,
125 	  { { 1, 1 } }, { { 1, 1 } }, { 14 } },
126 	{ MEDIA_BUS_FMT_SGRBG14_1X14, V4L2_PIX_FMT_SGRBG14P, 1,
127 	  { { 1, 1 } }, { { 1, 1 } }, { 14 } },
128 	{ MEDIA_BUS_FMT_SRGGB14_1X14, V4L2_PIX_FMT_SRGGB14P, 1,
129 	  { { 1, 1 } }, { { 1, 1 } }, { 14 } },
130 	{ MEDIA_BUS_FMT_Y10_1X10, V4L2_PIX_FMT_Y10P, 1,
131 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
132 	{ MEDIA_BUS_FMT_Y10_2X8_PADHI_LE, V4L2_PIX_FMT_Y10, 1,
133 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
137 	{ MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_UYVY, 1,
138 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
139 	{ MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_VYUY, 1,
140 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
141 	{ MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_YUYV, 1,
142 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
143 	{ MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_YVYU, 1,
144 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
145 	{ MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_PIX_FMT_SBGGR8, 1,
146 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
147 	{ MEDIA_BUS_FMT_SGBRG8_1X8, V4L2_PIX_FMT_SGBRG8, 1,
148 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
149 	{ MEDIA_BUS_FMT_SGRBG8_1X8, V4L2_PIX_FMT_SGRBG8, 1,
150 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
151 	{ MEDIA_BUS_FMT_SRGGB8_1X8, V4L2_PIX_FMT_SRGGB8, 1,
152 	  { { 1, 1 } }, { { 1, 1 } }, { 8 } },
153 	{ MEDIA_BUS_FMT_SBGGR10_1X10, V4L2_PIX_FMT_SBGGR10P, 1,
154 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
155 	{ MEDIA_BUS_FMT_SGBRG10_1X10, V4L2_PIX_FMT_SGBRG10P, 1,
156 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
157 	{ MEDIA_BUS_FMT_SGRBG10_1X10, V4L2_PIX_FMT_SGRBG10P, 1,
158 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
159 	{ MEDIA_BUS_FMT_SRGGB10_1X10, V4L2_PIX_FMT_SRGGB10P, 1,
160 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
161 	{ MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_PIX_FMT_SBGGR10, 1,
162 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
163 	{ MEDIA_BUS_FMT_SBGGR12_1X12, V4L2_PIX_FMT_SBGGR12P, 1,
164 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
165 	{ MEDIA_BUS_FMT_SGBRG12_1X12, V4L2_PIX_FMT_SGBRG12P, 1,
166 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
167 	{ MEDIA_BUS_FMT_SGRBG12_1X12, V4L2_PIX_FMT_SGRBG12P, 1,
168 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
169 	{ MEDIA_BUS_FMT_SRGGB12_1X12, V4L2_PIX_FMT_SRGGB12P, 1,
170 	  { { 1, 1 } }, { { 1, 1 } }, { 12 } },
171 	{ MEDIA_BUS_FMT_SBGGR14_1X14, V4L2_PIX_FMT_SBGGR14P, 1,
172 	  { { 1, 1 } }, { { 1, 1 } }, { 14 } },
173 	{ MEDIA_BUS_FMT_SGBRG14_1X14, V4L2_PIX_FMT_SGBRG14P, 1,
174 	  { { 1, 1 } }, { { 1, 1 } }, { 14 } },
175 	{ MEDIA_BUS_FMT_SGRBG14_1X14, V4L2_PIX_FMT_SGRBG14P, 1,
176 	  { { 1, 1 } }, { { 1, 1 } }, { 14 } },
177 	{ MEDIA_BUS_FMT_SRGGB14_1X14, V4L2_PIX_FMT_SRGGB14P, 1,
178 	  { { 1, 1 } }, { { 1, 1 } }, { 14 } },
179 	{ MEDIA_BUS_FMT_Y10_1X10, V4L2_PIX_FMT_Y10P, 1,
180 	  { { 1, 1 } }, { { 1, 1 } }, { 10 } },
181 	{ MEDIA_BUS_FMT_Y10_2X8_PADHI_LE, V4L2_PIX_FMT_Y10, 1,
182 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
186 	{ MEDIA_BUS_FMT_YUYV8_1_5X8, V4L2_PIX_FMT_NV12, 1,
187 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
188 	{ MEDIA_BUS_FMT_YVYU8_1_5X8, V4L2_PIX_FMT_NV12, 1,
189 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
190 	{ MEDIA_BUS_FMT_UYVY8_1_5X8, V4L2_PIX_FMT_NV12, 1,
191 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
192 	{ MEDIA_BUS_FMT_VYUY8_1_5X8, V4L2_PIX_FMT_NV12, 1,
193 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
194 	{ MEDIA_BUS_FMT_YUYV8_1_5X8, V4L2_PIX_FMT_NV21, 1,
195 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
196 	{ MEDIA_BUS_FMT_YVYU8_1_5X8, V4L2_PIX_FMT_NV21, 1,
197 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
198 	{ MEDIA_BUS_FMT_UYVY8_1_5X8, V4L2_PIX_FMT_NV21, 1,
199 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
200 	{ MEDIA_BUS_FMT_VYUY8_1_5X8, V4L2_PIX_FMT_NV21, 1,
201 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
202 	{ MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_NV16, 1,
203 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
204 	{ MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_NV16, 1,
205 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
206 	{ MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_NV16, 1,
207 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
208 	{ MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_NV16, 1,
209 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
210 	{ MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_NV61, 1,
211 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
212 	{ MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_NV61, 1,
213 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
214 	{ MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_NV61, 1,
215 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
216 	{ MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_NV61, 1,
217 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
221 	{ MEDIA_BUS_FMT_YUYV8_1_5X8, V4L2_PIX_FMT_NV12, 1,
222 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
223 	{ MEDIA_BUS_FMT_YVYU8_1_5X8, V4L2_PIX_FMT_NV12, 1,
224 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
225 	{ MEDIA_BUS_FMT_UYVY8_1_5X8, V4L2_PIX_FMT_NV12, 1,
226 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
227 	{ MEDIA_BUS_FMT_VYUY8_1_5X8, V4L2_PIX_FMT_NV12, 1,
228 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
229 	{ MEDIA_BUS_FMT_YUYV8_1_5X8, V4L2_PIX_FMT_NV21, 1,
230 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
231 	{ MEDIA_BUS_FMT_YVYU8_1_5X8, V4L2_PIX_FMT_NV21, 1,
232 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
233 	{ MEDIA_BUS_FMT_UYVY8_1_5X8, V4L2_PIX_FMT_NV21, 1,
234 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
235 	{ MEDIA_BUS_FMT_VYUY8_1_5X8, V4L2_PIX_FMT_NV21, 1,
236 	  { { 1, 1 } }, { { 2, 3 } }, { 8 } },
237 	{ MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_NV16, 1,
238 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
239 	{ MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_NV16, 1,
240 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
241 	{ MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_NV16, 1,
242 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
243 	{ MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_NV16, 1,
244 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
245 	{ MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_NV61, 1,
246 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
247 	{ MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_NV61, 1,
248 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
249 	{ MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_NV61, 1,
250 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
251 	{ MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_NV61, 1,
252 	  { { 1, 1 } }, { { 1, 2 } }, { 8 } },
253 	{ MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_UYVY, 1,
254 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
255 	{ MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_VYUY, 1,
256 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
257 	{ MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_YUYV, 1,
258 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
259 	{ MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_YVYU, 1,
260 	  { { 1, 1 } }, { { 1, 1 } }, { 16 } },
263 /* -----------------------------------------------------------------------------
283 	WARN_ON(1);  in video_find_format()
285 	return -EINVAL;  in video_find_format()
289  * video_mbus_to_pix_mp - Convert v4l2_mbus_framefmt to v4l2_pix_format_mplane
309 	pix->pixelformat = f->pixelformat;  in video_mbus_to_pix_mp()
310 	pix->num_planes = f->planes;  in video_mbus_to_pix_mp()
311 	for (i = 0; i < pix->num_planes; i++) {  in video_mbus_to_pix_mp()
312 		bytesperline = pix->width / f->hsub[i].numerator *  in video_mbus_to_pix_mp()
313 			f->hsub[i].denominator * f->bpp[i] / 8;  in video_mbus_to_pix_mp()
315 		pix->plane_fmt[i].bytesperline = bytesperline;  in video_mbus_to_pix_mp()
316 		pix->plane_fmt[i].sizeimage = pix->height /  in video_mbus_to_pix_mp()
317 				f->vsub[i].numerator * f->vsub[i].denominator *  in video_mbus_to_pix_mp()
329 	remote = media_entity_remote_pad(&video->pad);  in video_remote_subdev()
331 	if (!remote || !is_media_entity_v4l2_subdev(remote->entity))  in video_remote_subdev()
335 		*pad = remote->index;  in video_remote_subdev()
337 	return media_entity_to_v4l2_subdev(remote->entity);  in video_remote_subdev()
350 		return -EPIPE;  in video_get_subdev_format()
360 				format->fmt.pix_mp.pixelformat,  in video_get_subdev_format()
361 				video->formats, video->nformats);  in video_get_subdev_format()
365 	format->type = video->type;  in video_get_subdev_format()
367 	return video_mbus_to_pix_mp(&fmt.format, &format->fmt.pix_mp,  in video_get_subdev_format()
368 				    &video->formats[ret], video->bpl_alignment);  in video_get_subdev_format()
371 /* -----------------------------------------------------------------------------
381 						&video->active_fmt.fmt.pix_mp;  in video_queue_setup()
385 		if (*num_planes != format->num_planes)  in video_queue_setup()
386 			return -EINVAL;  in video_queue_setup()
389 			if (sizes[i] < format->plane_fmt[i].sizeimage)  in video_queue_setup()
390 				return -EINVAL;  in video_queue_setup()
395 	*num_planes = format->num_planes;  in video_queue_setup()
398 		sizes[i] = format->plane_fmt[i].sizeimage;  in video_queue_setup()
406 	struct camss_video *video = vb2_get_drv_priv(vb->vb2_queue);  in video_buf_init()
410 						&video->active_fmt.fmt.pix_mp;  in video_buf_init()
414 	for (i = 0; i < format->num_planes; i++) {  in video_buf_init()
417 			return -EFAULT;  in video_buf_init()
419 		buffer->addr[i] = sg_dma_address(sgt->sgl);  in video_buf_init()
422 	if (format->pixelformat == V4L2_PIX_FMT_NV12 ||  in video_buf_init()
423 			format->pixelformat == V4L2_PIX_FMT_NV21 ||  in video_buf_init()
424 			format->pixelformat == V4L2_PIX_FMT_NV16 ||  in video_buf_init()
425 			format->pixelformat == V4L2_PIX_FMT_NV61)  in video_buf_init()
426 		buffer->addr[1] = buffer->addr[0] +  in video_buf_init()
427 				format->plane_fmt[0].bytesperline *  in video_buf_init()
428 				format->height;  in video_buf_init()
436 	struct camss_video *video = vb2_get_drv_priv(vb->vb2_queue);  in video_buf_prepare()
438 						&video->active_fmt.fmt.pix_mp;  in video_buf_prepare()
441 	for (i = 0; i < format->num_planes; i++) {  in video_buf_prepare()
442 		if (format->plane_fmt[i].sizeimage > vb2_plane_size(vb, i))  in video_buf_prepare()
443 			return -EINVAL;  in video_buf_prepare()
445 		vb2_set_plane_payload(vb, i, format->plane_fmt[i].sizeimage);  in video_buf_prepare()
448 	vbuf->field = V4L2_FIELD_NONE;  in video_buf_prepare()
456 	struct camss_video *video = vb2_get_drv_priv(vb->vb2_queue);  in video_buf_queue()
460 	video->ops->queue_buffer(video, buffer);  in video_buf_queue()
465 	struct v4l2_pix_format_mplane *pix = &video->active_fmt.fmt.pix_mp;  in video_check_format()
470 	sd_pix->pixelformat = pix->pixelformat;  in video_check_format()
475 	if (pix->pixelformat != sd_pix->pixelformat ||  in video_check_format()
476 	    pix->height != sd_pix->height ||  in video_check_format()
477 	    pix->width != sd_pix->width ||  in video_check_format()
478 	    pix->num_planes != sd_pix->num_planes ||  in video_check_format()
479 	    pix->field != format.fmt.pix_mp.field)  in video_check_format()
480 		return -EPIPE;  in video_check_format()
488 	struct video_device *vdev = &video->vdev;  in video_start_streaming()
494 	ret = media_pipeline_start(&vdev->entity, &video->pipe);  in video_start_streaming()
502 	entity = &vdev->entity;  in video_start_streaming()
503 	while (1) {  in video_start_streaming()
504 		pad = &entity->pads[0];  in video_start_streaming()
505 		if (!(pad->flags & MEDIA_PAD_FL_SINK))  in video_start_streaming()
509 		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))  in video_start_streaming()
512 		entity = pad->entity;  in video_start_streaming()
515 		ret = v4l2_subdev_call(subdev, video, s_stream, 1);  in video_start_streaming()
516 		if (ret < 0 && ret != -ENOIOCTLCMD)  in video_start_streaming()
523 	media_pipeline_stop(&vdev->entity);  in video_start_streaming()
525 	video->ops->flush_buffers(video, VB2_BUF_STATE_QUEUED);  in video_start_streaming()
533 	struct video_device *vdev = &video->vdev;  in video_stop_streaming()
538 	entity = &vdev->entity;  in video_stop_streaming()
539 	while (1) {  in video_stop_streaming()
540 		pad = &entity->pads[0];  in video_stop_streaming()
541 		if (!(pad->flags & MEDIA_PAD_FL_SINK))  in video_stop_streaming()
545 		if (!pad || !is_media_entity_v4l2_subdev(pad->entity))  in video_stop_streaming()
548 		entity = pad->entity;  in video_stop_streaming()
554 	media_pipeline_stop(&vdev->entity);  in video_stop_streaming()
556 	video->ops->flush_buffers(video, VB2_BUF_STATE_ERROR);  in video_stop_streaming()
570 /* -----------------------------------------------------------------------------
579 	strscpy(cap->driver, "qcom-camss", sizeof(cap->driver));  in video_querycap()
580 	strscpy(cap->card, "Qualcomm Camera Subsystem", sizeof(cap->card));  in video_querycap()
581 	snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",  in video_querycap()
582 		 dev_name(video->camss->dev));  in video_querycap()
591 	u32 mcode = f->mbus_code;  in video_enum_fmt()
593 	if (f->type != video->type)  in video_enum_fmt()
594 		return -EINVAL;  in video_enum_fmt()
596 	if (f->index >= video->nformats)  in video_enum_fmt()
597 		return -EINVAL;  in video_enum_fmt()
602 	 * If f->mbus_code passed to video_enum_fmt() is not zero, a device  in video_enum_fmt()
605 	 * This is implemented by skipping video->formats[] entries with  in video_enum_fmt()
606 	 * code != f->mbus_code (if f->mbus_code is not zero).  in video_enum_fmt()
607 	 * If the f->mbus_code passed to video_enum_fmt() is not supported,  in video_enum_fmt()
608 	 * -EINVAL is returned.  in video_enum_fmt()
609 	 * If f->mbus_code is zero, all the pixel formats are enumerated.  in video_enum_fmt()
611 	k = -1;  in video_enum_fmt()
612 	for (i = 0; i < video->nformats; i++) {  in video_enum_fmt()
613 		if (mcode != 0 && video->formats[i].code != mcode)  in video_enum_fmt()
617 			if (mcode != 0 && video->formats[j].code != mcode)  in video_enum_fmt()
619 			if (video->formats[i].pixelformat ==  in video_enum_fmt()
620 					video->formats[j].pixelformat)  in video_enum_fmt()
627 		if (k == f->index)  in video_enum_fmt()
631 	if (k == -1 || k < f->index)  in video_enum_fmt()
634 		 * have been enumerated (k >= 0 and f->index > 0), or  in video_enum_fmt()
635 		 * no pixel formats match the non-zero f->mbus_code (k == -1).  in video_enum_fmt()
637 		return -EINVAL;  in video_enum_fmt()
639 	f->pixelformat = video->formats[i].pixelformat;  in video_enum_fmt()
650 	if (fsize->index)  in video_enum_framesizes()
651 		return -EINVAL;  in video_enum_framesizes()
654 	for (i = 0; i < video->nformats; i++) {  in video_enum_framesizes()
655 		if (video->formats[i].pixelformat == fsize->pixel_format)  in video_enum_framesizes()
659 	if (i == video->nformats)  in video_enum_framesizes()
660 		return -EINVAL;  in video_enum_framesizes()
662 	fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;  in video_enum_framesizes()
663 	fsize->stepwise.min_width = CAMSS_FRAME_MIN_WIDTH;  in video_enum_framesizes()
664 	fsize->stepwise.max_width = CAMSS_FRAME_MAX_WIDTH;  in video_enum_framesizes()
665 	fsize->stepwise.min_height = CAMSS_FRAME_MIN_HEIGHT;  in video_enum_framesizes()
666 	fsize->stepwise.max_height = (video->line_based) ?  in video_enum_framesizes()
668 	fsize->stepwise.step_width = 1;  in video_enum_framesizes()
669 	fsize->stepwise.step_height = 1;  in video_enum_framesizes()
678 	*f = video->active_fmt;  in video_g_fmt()
694 	pix_mp = &f->fmt.pix_mp;  in __video_try_fmt()
696 	if (video->line_based)  in __video_try_fmt()
697 		for (i = 0; i < pix_mp->num_planes && i < 3; i++) {  in __video_try_fmt()
698 			p = &pix_mp->plane_fmt[i];  in __video_try_fmt()
699 			bytesperline[i] = clamp_t(u32, p->bytesperline,  in __video_try_fmt()
700 						  1, 65528);  in __video_try_fmt()
701 			sizeimage[i] = clamp_t(u32, p->sizeimage,  in __video_try_fmt()
706 	for (j = 0; j < video->nformats; j++)  in __video_try_fmt()
707 		if (pix_mp->pixelformat == video->formats[j].pixelformat)  in __video_try_fmt()
710 	if (j == video->nformats)  in __video_try_fmt()
713 	fi = &video->formats[j];  in __video_try_fmt()
714 	width = pix_mp->width;  in __video_try_fmt()
715 	height = pix_mp->height;  in __video_try_fmt()
719 	pix_mp->pixelformat = fi->pixelformat;  in __video_try_fmt()
720 	pix_mp->width = clamp_t(u32, width, 1, CAMSS_FRAME_MAX_WIDTH);  in __video_try_fmt()
721 	pix_mp->height = clamp_t(u32, height, 1, CAMSS_FRAME_MAX_HEIGHT_RDI);  in __video_try_fmt()
722 	pix_mp->num_planes = fi->planes;  in __video_try_fmt()
723 	for (i = 0; i < pix_mp->num_planes; i++) {  in __video_try_fmt()
724 		bpl = pix_mp->width / fi->hsub[i].numerator *  in __video_try_fmt()
725 			fi->hsub[i].denominator * fi->bpp[i] / 8;  in __video_try_fmt()
726 		bpl = ALIGN(bpl, video->bpl_alignment);  in __video_try_fmt()
727 		pix_mp->plane_fmt[i].bytesperline = bpl;  in __video_try_fmt()
728 		pix_mp->plane_fmt[i].sizeimage = pix_mp->height /  in __video_try_fmt()
729 			fi->vsub[i].numerator * fi->vsub[i].denominator * bpl;  in __video_try_fmt()
732 	pix_mp->field = V4L2_FIELD_NONE;  in __video_try_fmt()
733 	pix_mp->colorspace = V4L2_COLORSPACE_SRGB;  in __video_try_fmt()
734 	pix_mp->flags = 0;  in __video_try_fmt()
735 	pix_mp->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(pix_mp->colorspace);  in __video_try_fmt()
736 	pix_mp->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true,  in __video_try_fmt()
737 					pix_mp->colorspace, pix_mp->ycbcr_enc);  in __video_try_fmt()
738 	pix_mp->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(pix_mp->colorspace);  in __video_try_fmt()
740 	if (video->line_based)  in __video_try_fmt()
741 		for (i = 0; i < pix_mp->num_planes; i++) {  in __video_try_fmt()
742 			p = &pix_mp->plane_fmt[i];  in __video_try_fmt()
743 			p->bytesperline = clamp_t(u32, p->bytesperline,  in __video_try_fmt()
744 						  1, 65528);  in __video_try_fmt()
745 			p->sizeimage = clamp_t(u32, p->sizeimage,  in __video_try_fmt()
746 					       p->bytesperline,  in __video_try_fmt()
747 					       p->bytesperline * CAMSS_FRAME_MAX_HEIGHT_PIX);  in __video_try_fmt()
748 			lines = p->sizeimage / p->bytesperline;  in __video_try_fmt()
750 			if (p->bytesperline < bytesperline[i])  in __video_try_fmt()
751 				p->bytesperline = ALIGN(bytesperline[i], 8);  in __video_try_fmt()
753 			if (p->sizeimage < p->bytesperline * lines)  in __video_try_fmt()
754 				p->sizeimage = p->bytesperline * lines;  in __video_try_fmt()
756 			if (p->sizeimage < sizeimage[i])  in __video_try_fmt()
757 				p->sizeimage = sizeimage[i];  in __video_try_fmt()
775 	if (vb2_is_busy(&video->vb2_q))  in video_s_fmt()
776 		return -EBUSY;  in video_s_fmt()
782 	video->active_fmt = *f;  in video_s_fmt()
790 	if (input->index > 0)  in video_enum_input()
791 		return -EINVAL;  in video_enum_input()
793 	strscpy(input->name, "camera", sizeof(input->name));  in video_enum_input()
794 	input->type = V4L2_INPUT_TYPE_CAMERA;  in video_enum_input()
808 	return input == 0 ? 0 : -EINVAL;  in video_s_input()
832 /* -----------------------------------------------------------------------------
843 	mutex_lock(&video->lock);  in video_open()
847 		ret = -ENOMEM;  in video_open()
854 	file->private_data = vfh;  in video_open()
856 	ret = v4l2_pipeline_pm_get(&vdev->entity);  in video_open()
858 		dev_err(video->camss->dev, "Failed to power up pipeline: %d\n",  in video_open()
863 	mutex_unlock(&video->lock);  in video_open()
871 	mutex_unlock(&video->lock);  in video_open()
882 	v4l2_pipeline_pm_put(&vdev->entity);  in video_release()
884 	file->private_data = NULL;  in video_release()
899 /* -----------------------------------------------------------------------------
907 	media_entity_cleanup(&vdev->entity);  in msm_video_release()
909 	mutex_destroy(&video->q_lock);  in msm_video_release()
910 	mutex_destroy(&video->lock);  in msm_video_release()
912 	if (atomic_dec_and_test(&video->camss->ref_count))  in msm_video_release()
913 		camss_delete(video->camss);  in msm_video_release()
917  * msm_video_init_format - Helper function to initialize format
932 			.pixelformat = video->formats[0].pixelformat,  in msm_video_init_format()
940 	video->active_fmt = format;  in msm_video_init_format()
946  * msm_video_register - Register a video device node
960 	struct media_pad *pad = &video->pad;  in msm_video_register()
965 	vdev = &video->vdev;  in msm_video_register()
967 	mutex_init(&video->q_lock);  in msm_video_register()
969 	q = &video->vb2_q;  in msm_video_register()
970 	q->drv_priv = video;  in msm_video_register()
971 	q->mem_ops = &vb2_dma_sg_memops;  in msm_video_register()
972 	q->ops = &msm_video_vb2_q_ops;  in msm_video_register()
973 	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;  in msm_video_register()
974 	q->io_modes = VB2_DMABUF | VB2_MMAP | VB2_READ;  in msm_video_register()
975 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;  in msm_video_register()
976 	q->buf_struct_size = sizeof(struct camss_buffer);  in msm_video_register()
977 	q->dev = video->camss->dev;  in msm_video_register()
978 	q->lock = &video->q_lock;  in msm_video_register()
981 		dev_err(v4l2_dev->dev, "Failed to init vb2 queue: %d\n", ret);  in msm_video_register()
985 	pad->flags = MEDIA_PAD_FL_SINK;  in msm_video_register()
986 	ret = media_entity_pads_init(&vdev->entity, 1, pad);  in msm_video_register()
988 		dev_err(v4l2_dev->dev, "Failed to init video entity: %d\n",  in msm_video_register()
993 	mutex_init(&video->lock);  in msm_video_register()
995 	if (video->camss->version == CAMSS_8x16) {  in msm_video_register()
997 			video->formats = formats_pix_8x16;  in msm_video_register()
998 			video->nformats = ARRAY_SIZE(formats_pix_8x16);  in msm_video_register()
1000 			video->formats = formats_rdi_8x16;  in msm_video_register()
1001 			video->nformats = ARRAY_SIZE(formats_rdi_8x16);  in msm_video_register()
1003 	} else if (video->camss->version == CAMSS_8x96 ||  in msm_video_register()
1004 		   video->camss->version == CAMSS_660) {  in msm_video_register()
1006 			video->formats = formats_pix_8x96;  in msm_video_register()
1007 			video->nformats = ARRAY_SIZE(formats_pix_8x96);  in msm_video_register()
1009 			video->formats = formats_rdi_8x96;  in msm_video_register()
1010 			video->nformats = ARRAY_SIZE(formats_rdi_8x96);  in msm_video_register()
1012 	}  else if (video->camss->version == CAMSS_845) {  in msm_video_register()
1013 		video->formats = formats_rdi_845;  in msm_video_register()
1014 		video->nformats = ARRAY_SIZE(formats_rdi_845);  in msm_video_register()
1016 		ret = -EINVAL;  in msm_video_register()
1022 		dev_err(v4l2_dev->dev, "Failed to init format: %d\n", ret);  in msm_video_register()
1026 	vdev->fops = &msm_vid_fops;  in msm_video_register()
1027 	vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_STREAMING  in msm_video_register()
1029 	vdev->ioctl_ops = &msm_vid_ioctl_ops;  in msm_video_register()
1030 	vdev->release = msm_video_release;  in msm_video_register()
1031 	vdev->v4l2_dev = v4l2_dev;  in msm_video_register()
1032 	vdev->vfl_dir = VFL_DIR_RX;  in msm_video_register()
1033 	vdev->queue = &video->vb2_q;  in msm_video_register()
1034 	vdev->lock = &video->lock;  in msm_video_register()
1035 	strscpy(vdev->name, name, sizeof(vdev->name));  in msm_video_register()
1037 	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);  in msm_video_register()
1039 		dev_err(v4l2_dev->dev, "Failed to register video device: %d\n",  in msm_video_register()
1045 	atomic_inc(&video->camss->ref_count);  in msm_video_register()
1050 	media_entity_cleanup(&vdev->entity);  in msm_video_register()
1051 	mutex_destroy(&video->lock);  in msm_video_register()
1053 	mutex_destroy(&video->q_lock);  in msm_video_register()
1060 	atomic_inc(&video->camss->ref_count);  in msm_video_unregister()
1061 	vb2_video_unregister_device(&video->vdev);  in msm_video_unregister()
1062 	atomic_dec(&video->camss->ref_count);  in msm_video_unregister()