1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * camss-video.c
4 *
5 * Qualcomm MSM Camera Subsystem - V4L2 device node
6 *
7 * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
8 * Copyright (C) 2015-2018 Linaro Ltd.
9 */
10 #include <linux/slab.h>
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>
17
18 #include "camss-video.h"
19 #include "camss.h"
20
21 #define CAMSS_FRAME_MIN_WIDTH 1
22 #define CAMSS_FRAME_MAX_WIDTH 8191
23 #define CAMSS_FRAME_MIN_HEIGHT 1
24 #define CAMSS_FRAME_MAX_HEIGHT_RDI 8191
25 #define CAMSS_FRAME_MAX_HEIGHT_PIX 4096
26
27 struct fract {
28 u8 numerator;
29 u8 denominator;
30 };
31
32 /*
33 * struct camss_format_info - ISP media bus format information
34 * @code: V4L2 media bus format code
35 * @pixelformat: V4L2 pixel format FCC identifier
36 * @planes: Number of planes
37 * @hsub: Horizontal subsampling (for each plane)
38 * @vsub: Vertical subsampling (for each plane)
39 * @bpp: Bits per pixel when stored in memory (for each plane)
40 */
41 struct camss_format_info {
42 u32 code;
43 u32 pixelformat;
44 u8 planes;
45 struct fract hsub[3];
46 struct fract vsub[3];
47 unsigned int bpp[3];
48 };
49
50 static const struct camss_format_info formats_rdi_8x16[] = {
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 } },
85 };
86
87 static const struct camss_format_info formats_rdi_8x96[] = {
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 } },
134 };
135
136 static const struct camss_format_info formats_rdi_845[] = {
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_Y8_1X8, V4L2_PIX_FMT_GREY, 1,
180 { { 1, 1 } }, { { 1, 1 } }, { 8 } },
181 { MEDIA_BUS_FMT_Y10_1X10, V4L2_PIX_FMT_Y10P, 1,
182 { { 1, 1 } }, { { 1, 1 } }, { 10 } },
183 { MEDIA_BUS_FMT_Y10_2X8_PADHI_LE, V4L2_PIX_FMT_Y10, 1,
184 { { 1, 1 } }, { { 1, 1 } }, { 16 } },
185 };
186
187 static const struct camss_format_info formats_pix_8x16[] = {
188 { MEDIA_BUS_FMT_YUYV8_1_5X8, V4L2_PIX_FMT_NV12, 1,
189 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
190 { MEDIA_BUS_FMT_YVYU8_1_5X8, V4L2_PIX_FMT_NV12, 1,
191 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
192 { MEDIA_BUS_FMT_UYVY8_1_5X8, V4L2_PIX_FMT_NV12, 1,
193 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
194 { MEDIA_BUS_FMT_VYUY8_1_5X8, V4L2_PIX_FMT_NV12, 1,
195 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
196 { MEDIA_BUS_FMT_YUYV8_1_5X8, V4L2_PIX_FMT_NV21, 1,
197 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
198 { MEDIA_BUS_FMT_YVYU8_1_5X8, V4L2_PIX_FMT_NV21, 1,
199 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
200 { MEDIA_BUS_FMT_UYVY8_1_5X8, V4L2_PIX_FMT_NV21, 1,
201 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
202 { MEDIA_BUS_FMT_VYUY8_1_5X8, V4L2_PIX_FMT_NV21, 1,
203 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
204 { MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_NV16, 1,
205 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
206 { MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_NV16, 1,
207 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
208 { MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_NV16, 1,
209 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
210 { MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_NV16, 1,
211 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
212 { MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_NV61, 1,
213 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
214 { MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_NV61, 1,
215 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
216 { MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_NV61, 1,
217 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
218 { MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_NV61, 1,
219 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
220 };
221
222 static const struct camss_format_info formats_pix_8x96[] = {
223 { MEDIA_BUS_FMT_YUYV8_1_5X8, V4L2_PIX_FMT_NV12, 1,
224 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
225 { MEDIA_BUS_FMT_YVYU8_1_5X8, V4L2_PIX_FMT_NV12, 1,
226 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
227 { MEDIA_BUS_FMT_UYVY8_1_5X8, V4L2_PIX_FMT_NV12, 1,
228 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
229 { MEDIA_BUS_FMT_VYUY8_1_5X8, V4L2_PIX_FMT_NV12, 1,
230 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
231 { MEDIA_BUS_FMT_YUYV8_1_5X8, V4L2_PIX_FMT_NV21, 1,
232 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
233 { MEDIA_BUS_FMT_YVYU8_1_5X8, V4L2_PIX_FMT_NV21, 1,
234 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
235 { MEDIA_BUS_FMT_UYVY8_1_5X8, V4L2_PIX_FMT_NV21, 1,
236 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
237 { MEDIA_BUS_FMT_VYUY8_1_5X8, V4L2_PIX_FMT_NV21, 1,
238 { { 1, 1 } }, { { 2, 3 } }, { 8 } },
239 { MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_NV16, 1,
240 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
241 { MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_NV16, 1,
242 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
243 { MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_NV16, 1,
244 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
245 { MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_NV16, 1,
246 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
247 { MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_NV61, 1,
248 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
249 { MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_NV61, 1,
250 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
251 { MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_NV61, 1,
252 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
253 { MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_NV61, 1,
254 { { 1, 1 } }, { { 1, 2 } }, { 8 } },
255 { MEDIA_BUS_FMT_UYVY8_2X8, V4L2_PIX_FMT_UYVY, 1,
256 { { 1, 1 } }, { { 1, 1 } }, { 16 } },
257 { MEDIA_BUS_FMT_VYUY8_2X8, V4L2_PIX_FMT_VYUY, 1,
258 { { 1, 1 } }, { { 1, 1 } }, { 16 } },
259 { MEDIA_BUS_FMT_YUYV8_2X8, V4L2_PIX_FMT_YUYV, 1,
260 { { 1, 1 } }, { { 1, 1 } }, { 16 } },
261 { MEDIA_BUS_FMT_YVYU8_2X8, V4L2_PIX_FMT_YVYU, 1,
262 { { 1, 1 } }, { { 1, 1 } }, { 16 } },
263 };
264
265 /* -----------------------------------------------------------------------------
266 * Helper functions
267 */
268
video_find_format(u32 code,u32 pixelformat,const struct camss_format_info * formats,unsigned int nformats)269 static int video_find_format(u32 code, u32 pixelformat,
270 const struct camss_format_info *formats,
271 unsigned int nformats)
272 {
273 int i;
274
275 for (i = 0; i < nformats; i++) {
276 if (formats[i].code == code &&
277 formats[i].pixelformat == pixelformat)
278 return i;
279 }
280
281 for (i = 0; i < nformats; i++)
282 if (formats[i].code == code)
283 return i;
284
285 WARN_ON(1);
286
287 return -EINVAL;
288 }
289
290 /*
291 * video_mbus_to_pix_mp - Convert v4l2_mbus_framefmt to v4l2_pix_format_mplane
292 * @mbus: v4l2_mbus_framefmt format (input)
293 * @pix: v4l2_pix_format_mplane format (output)
294 * @f: a pointer to formats array element to be used for the conversion
295 * @alignment: bytesperline alignment value
296 *
297 * Fill the output pix structure with information from the input mbus format.
298 *
299 * Return 0 on success or a negative error code otherwise
300 */
video_mbus_to_pix_mp(const struct v4l2_mbus_framefmt * mbus,struct v4l2_pix_format_mplane * pix,const struct camss_format_info * f,unsigned int alignment)301 static int video_mbus_to_pix_mp(const struct v4l2_mbus_framefmt *mbus,
302 struct v4l2_pix_format_mplane *pix,
303 const struct camss_format_info *f,
304 unsigned int alignment)
305 {
306 unsigned int i;
307 u32 bytesperline;
308
309 memset(pix, 0, sizeof(*pix));
310 v4l2_fill_pix_format_mplane(pix, mbus);
311 pix->pixelformat = f->pixelformat;
312 pix->num_planes = f->planes;
313 for (i = 0; i < pix->num_planes; i++) {
314 bytesperline = pix->width / f->hsub[i].numerator *
315 f->hsub[i].denominator * f->bpp[i] / 8;
316 bytesperline = ALIGN(bytesperline, alignment);
317 pix->plane_fmt[i].bytesperline = bytesperline;
318 pix->plane_fmt[i].sizeimage = pix->height /
319 f->vsub[i].numerator * f->vsub[i].denominator *
320 bytesperline;
321 }
322
323 return 0;
324 }
325
video_remote_subdev(struct camss_video * video,u32 * pad)326 static struct v4l2_subdev *video_remote_subdev(struct camss_video *video,
327 u32 *pad)
328 {
329 struct media_pad *remote;
330
331 remote = media_pad_remote_pad_first(&video->pad);
332
333 if (!remote || !is_media_entity_v4l2_subdev(remote->entity))
334 return NULL;
335
336 if (pad)
337 *pad = remote->index;
338
339 return media_entity_to_v4l2_subdev(remote->entity);
340 }
341
video_get_subdev_format(struct camss_video * video,struct v4l2_format * format)342 static int video_get_subdev_format(struct camss_video *video,
343 struct v4l2_format *format)
344 {
345 struct v4l2_subdev_format fmt;
346 struct v4l2_subdev *subdev;
347 u32 pad;
348 int ret;
349
350 subdev = video_remote_subdev(video, &pad);
351 if (subdev == NULL)
352 return -EPIPE;
353
354 fmt.pad = pad;
355 fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
356
357 ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &fmt);
358 if (ret)
359 return ret;
360
361 ret = video_find_format(fmt.format.code,
362 format->fmt.pix_mp.pixelformat,
363 video->formats, video->nformats);
364 if (ret < 0)
365 return ret;
366
367 format->type = video->type;
368
369 return video_mbus_to_pix_mp(&fmt.format, &format->fmt.pix_mp,
370 &video->formats[ret], video->bpl_alignment);
371 }
372
373 /* -----------------------------------------------------------------------------
374 * Video queue operations
375 */
376
video_queue_setup(struct vb2_queue * q,unsigned int * num_buffers,unsigned int * num_planes,unsigned int sizes[],struct device * alloc_devs[])377 static int video_queue_setup(struct vb2_queue *q,
378 unsigned int *num_buffers, unsigned int *num_planes,
379 unsigned int sizes[], struct device *alloc_devs[])
380 {
381 struct camss_video *video = vb2_get_drv_priv(q);
382 const struct v4l2_pix_format_mplane *format =
383 &video->active_fmt.fmt.pix_mp;
384 unsigned int i;
385
386 if (*num_planes) {
387 if (*num_planes != format->num_planes)
388 return -EINVAL;
389
390 for (i = 0; i < *num_planes; i++)
391 if (sizes[i] < format->plane_fmt[i].sizeimage)
392 return -EINVAL;
393
394 return 0;
395 }
396
397 *num_planes = format->num_planes;
398
399 for (i = 0; i < *num_planes; i++)
400 sizes[i] = format->plane_fmt[i].sizeimage;
401
402 return 0;
403 }
404
video_buf_init(struct vb2_buffer * vb)405 static int video_buf_init(struct vb2_buffer *vb)
406 {
407 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
408 struct camss_video *video = vb2_get_drv_priv(vb->vb2_queue);
409 struct camss_buffer *buffer = container_of(vbuf, struct camss_buffer,
410 vb);
411 const struct v4l2_pix_format_mplane *format =
412 &video->active_fmt.fmt.pix_mp;
413 struct sg_table *sgt;
414 unsigned int i;
415
416 for (i = 0; i < format->num_planes; i++) {
417 sgt = vb2_dma_sg_plane_desc(vb, i);
418 if (!sgt)
419 return -EFAULT;
420
421 buffer->addr[i] = sg_dma_address(sgt->sgl);
422 }
423
424 if (format->pixelformat == V4L2_PIX_FMT_NV12 ||
425 format->pixelformat == V4L2_PIX_FMT_NV21 ||
426 format->pixelformat == V4L2_PIX_FMT_NV16 ||
427 format->pixelformat == V4L2_PIX_FMT_NV61)
428 buffer->addr[1] = buffer->addr[0] +
429 format->plane_fmt[0].bytesperline *
430 format->height;
431
432 return 0;
433 }
434
video_buf_prepare(struct vb2_buffer * vb)435 static int video_buf_prepare(struct vb2_buffer *vb)
436 {
437 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
438 struct camss_video *video = vb2_get_drv_priv(vb->vb2_queue);
439 const struct v4l2_pix_format_mplane *format =
440 &video->active_fmt.fmt.pix_mp;
441 unsigned int i;
442
443 for (i = 0; i < format->num_planes; i++) {
444 if (format->plane_fmt[i].sizeimage > vb2_plane_size(vb, i))
445 return -EINVAL;
446
447 vb2_set_plane_payload(vb, i, format->plane_fmt[i].sizeimage);
448 }
449
450 vbuf->field = V4L2_FIELD_NONE;
451
452 return 0;
453 }
454
video_buf_queue(struct vb2_buffer * vb)455 static void video_buf_queue(struct vb2_buffer *vb)
456 {
457 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
458 struct camss_video *video = vb2_get_drv_priv(vb->vb2_queue);
459 struct camss_buffer *buffer = container_of(vbuf, struct camss_buffer,
460 vb);
461
462 video->ops->queue_buffer(video, buffer);
463 }
464
video_check_format(struct camss_video * video)465 static int video_check_format(struct camss_video *video)
466 {
467 struct v4l2_pix_format_mplane *pix = &video->active_fmt.fmt.pix_mp;
468 struct v4l2_format format;
469 struct v4l2_pix_format_mplane *sd_pix = &format.fmt.pix_mp;
470 int ret;
471
472 sd_pix->pixelformat = pix->pixelformat;
473 ret = video_get_subdev_format(video, &format);
474 if (ret < 0)
475 return ret;
476
477 if (pix->pixelformat != sd_pix->pixelformat ||
478 pix->height != sd_pix->height ||
479 pix->width != sd_pix->width ||
480 pix->num_planes != sd_pix->num_planes ||
481 pix->field != format.fmt.pix_mp.field)
482 return -EPIPE;
483
484 return 0;
485 }
486
video_start_streaming(struct vb2_queue * q,unsigned int count)487 static int video_start_streaming(struct vb2_queue *q, unsigned int count)
488 {
489 struct camss_video *video = vb2_get_drv_priv(q);
490 struct video_device *vdev = &video->vdev;
491 struct media_entity *entity;
492 struct media_pad *pad;
493 struct v4l2_subdev *subdev;
494 int ret;
495
496 ret = video_device_pipeline_start(vdev, &video->pipe);
497 if (ret < 0)
498 goto flush_buffers;
499
500 ret = video_check_format(video);
501 if (ret < 0)
502 goto error;
503
504 entity = &vdev->entity;
505 while (1) {
506 pad = &entity->pads[0];
507 if (!(pad->flags & MEDIA_PAD_FL_SINK))
508 break;
509
510 pad = media_pad_remote_pad_first(pad);
511 if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
512 break;
513
514 entity = pad->entity;
515 subdev = media_entity_to_v4l2_subdev(entity);
516
517 ret = v4l2_subdev_call(subdev, video, s_stream, 1);
518 if (ret < 0 && ret != -ENOIOCTLCMD)
519 goto error;
520 }
521
522 return 0;
523
524 error:
525 video_device_pipeline_stop(vdev);
526
527 flush_buffers:
528 video->ops->flush_buffers(video, VB2_BUF_STATE_QUEUED);
529
530 return ret;
531 }
532
video_stop_streaming(struct vb2_queue * q)533 static void video_stop_streaming(struct vb2_queue *q)
534 {
535 struct camss_video *video = vb2_get_drv_priv(q);
536 struct video_device *vdev = &video->vdev;
537 struct media_entity *entity;
538 struct media_pad *pad;
539 struct v4l2_subdev *subdev;
540
541 entity = &vdev->entity;
542 while (1) {
543 pad = &entity->pads[0];
544 if (!(pad->flags & MEDIA_PAD_FL_SINK))
545 break;
546
547 pad = media_pad_remote_pad_first(pad);
548 if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
549 break;
550
551 entity = pad->entity;
552 subdev = media_entity_to_v4l2_subdev(entity);
553
554 v4l2_subdev_call(subdev, video, s_stream, 0);
555 }
556
557 video_device_pipeline_stop(vdev);
558
559 video->ops->flush_buffers(video, VB2_BUF_STATE_ERROR);
560 }
561
562 static const struct vb2_ops msm_video_vb2_q_ops = {
563 .queue_setup = video_queue_setup,
564 .wait_prepare = vb2_ops_wait_prepare,
565 .wait_finish = vb2_ops_wait_finish,
566 .buf_init = video_buf_init,
567 .buf_prepare = video_buf_prepare,
568 .buf_queue = video_buf_queue,
569 .start_streaming = video_start_streaming,
570 .stop_streaming = video_stop_streaming,
571 };
572
573 /* -----------------------------------------------------------------------------
574 * V4L2 ioctls
575 */
576
video_querycap(struct file * file,void * fh,struct v4l2_capability * cap)577 static int video_querycap(struct file *file, void *fh,
578 struct v4l2_capability *cap)
579 {
580 strscpy(cap->driver, "qcom-camss", sizeof(cap->driver));
581 strscpy(cap->card, "Qualcomm Camera Subsystem", sizeof(cap->card));
582
583 return 0;
584 }
585
video_enum_fmt(struct file * file,void * fh,struct v4l2_fmtdesc * f)586 static int video_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
587 {
588 struct camss_video *video = video_drvdata(file);
589 int i, j, k;
590 u32 mcode = f->mbus_code;
591
592 if (f->type != video->type)
593 return -EINVAL;
594
595 if (f->index >= video->nformats)
596 return -EINVAL;
597
598 /*
599 * Find index "i" of "k"th unique pixelformat in formats array.
600 *
601 * If f->mbus_code passed to video_enum_fmt() is not zero, a device
602 * with V4L2_CAP_IO_MC capability restricts enumeration to only the
603 * pixel formats that can be produced from that media bus code.
604 * This is implemented by skipping video->formats[] entries with
605 * code != f->mbus_code (if f->mbus_code is not zero).
606 * If the f->mbus_code passed to video_enum_fmt() is not supported,
607 * -EINVAL is returned.
608 * If f->mbus_code is zero, all the pixel formats are enumerated.
609 */
610 k = -1;
611 for (i = 0; i < video->nformats; i++) {
612 if (mcode != 0 && video->formats[i].code != mcode)
613 continue;
614
615 for (j = 0; j < i; j++) {
616 if (mcode != 0 && video->formats[j].code != mcode)
617 continue;
618 if (video->formats[i].pixelformat ==
619 video->formats[j].pixelformat)
620 break;
621 }
622
623 if (j == i)
624 k++;
625
626 if (k == f->index)
627 break;
628 }
629
630 if (k == -1 || k < f->index)
631 /*
632 * All the unique pixel formats matching the arguments
633 * have been enumerated (k >= 0 and f->index > 0), or
634 * no pixel formats match the non-zero f->mbus_code (k == -1).
635 */
636 return -EINVAL;
637
638 f->pixelformat = video->formats[i].pixelformat;
639
640 return 0;
641 }
642
video_enum_framesizes(struct file * file,void * fh,struct v4l2_frmsizeenum * fsize)643 static int video_enum_framesizes(struct file *file, void *fh,
644 struct v4l2_frmsizeenum *fsize)
645 {
646 struct camss_video *video = video_drvdata(file);
647 int i;
648
649 if (fsize->index)
650 return -EINVAL;
651
652 /* Only accept pixel format present in the formats[] table */
653 for (i = 0; i < video->nformats; i++) {
654 if (video->formats[i].pixelformat == fsize->pixel_format)
655 break;
656 }
657
658 if (i == video->nformats)
659 return -EINVAL;
660
661 fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
662 fsize->stepwise.min_width = CAMSS_FRAME_MIN_WIDTH;
663 fsize->stepwise.max_width = CAMSS_FRAME_MAX_WIDTH;
664 fsize->stepwise.min_height = CAMSS_FRAME_MIN_HEIGHT;
665 fsize->stepwise.max_height = (video->line_based) ?
666 CAMSS_FRAME_MAX_HEIGHT_PIX : CAMSS_FRAME_MAX_HEIGHT_RDI;
667 fsize->stepwise.step_width = 1;
668 fsize->stepwise.step_height = 1;
669
670 return 0;
671 }
672
video_g_fmt(struct file * file,void * fh,struct v4l2_format * f)673 static int video_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
674 {
675 struct camss_video *video = video_drvdata(file);
676
677 *f = video->active_fmt;
678
679 return 0;
680 }
681
__video_try_fmt(struct camss_video * video,struct v4l2_format * f)682 static int __video_try_fmt(struct camss_video *video, struct v4l2_format *f)
683 {
684 struct v4l2_pix_format_mplane *pix_mp;
685 const struct camss_format_info *fi;
686 struct v4l2_plane_pix_format *p;
687 u32 bytesperline[3] = { 0 };
688 u32 sizeimage[3] = { 0 };
689 u32 width, height;
690 u32 bpl, lines;
691 int i, j;
692
693 pix_mp = &f->fmt.pix_mp;
694
695 if (video->line_based)
696 for (i = 0; i < pix_mp->num_planes && i < 3; i++) {
697 p = &pix_mp->plane_fmt[i];
698 bytesperline[i] = clamp_t(u32, p->bytesperline,
699 1, 65528);
700 sizeimage[i] = clamp_t(u32, p->sizeimage,
701 bytesperline[i],
702 bytesperline[i] * CAMSS_FRAME_MAX_HEIGHT_PIX);
703 }
704
705 for (j = 0; j < video->nformats; j++)
706 if (pix_mp->pixelformat == video->formats[j].pixelformat)
707 break;
708
709 if (j == video->nformats)
710 j = 0; /* default format */
711
712 fi = &video->formats[j];
713 width = pix_mp->width;
714 height = pix_mp->height;
715
716 memset(pix_mp, 0, sizeof(*pix_mp));
717
718 pix_mp->pixelformat = fi->pixelformat;
719 pix_mp->width = clamp_t(u32, width, 1, CAMSS_FRAME_MAX_WIDTH);
720 pix_mp->height = clamp_t(u32, height, 1, CAMSS_FRAME_MAX_HEIGHT_RDI);
721 pix_mp->num_planes = fi->planes;
722 for (i = 0; i < pix_mp->num_planes; i++) {
723 bpl = pix_mp->width / fi->hsub[i].numerator *
724 fi->hsub[i].denominator * fi->bpp[i] / 8;
725 bpl = ALIGN(bpl, video->bpl_alignment);
726 pix_mp->plane_fmt[i].bytesperline = bpl;
727 pix_mp->plane_fmt[i].sizeimage = pix_mp->height /
728 fi->vsub[i].numerator * fi->vsub[i].denominator * bpl;
729 }
730
731 pix_mp->field = V4L2_FIELD_NONE;
732 pix_mp->colorspace = V4L2_COLORSPACE_SRGB;
733 pix_mp->flags = 0;
734 pix_mp->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(pix_mp->colorspace);
735 pix_mp->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true,
736 pix_mp->colorspace, pix_mp->ycbcr_enc);
737 pix_mp->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(pix_mp->colorspace);
738
739 if (video->line_based)
740 for (i = 0; i < pix_mp->num_planes; i++) {
741 p = &pix_mp->plane_fmt[i];
742 p->bytesperline = clamp_t(u32, p->bytesperline,
743 1, 65528);
744 p->sizeimage = clamp_t(u32, p->sizeimage,
745 p->bytesperline,
746 p->bytesperline * CAMSS_FRAME_MAX_HEIGHT_PIX);
747 lines = p->sizeimage / p->bytesperline;
748
749 if (p->bytesperline < bytesperline[i])
750 p->bytesperline = ALIGN(bytesperline[i], 8);
751
752 if (p->sizeimage < p->bytesperline * lines)
753 p->sizeimage = p->bytesperline * lines;
754
755 if (p->sizeimage < sizeimage[i])
756 p->sizeimage = sizeimage[i];
757 }
758
759 return 0;
760 }
761
video_try_fmt(struct file * file,void * fh,struct v4l2_format * f)762 static int video_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
763 {
764 struct camss_video *video = video_drvdata(file);
765
766 return __video_try_fmt(video, f);
767 }
768
video_s_fmt(struct file * file,void * fh,struct v4l2_format * f)769 static int video_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
770 {
771 struct camss_video *video = video_drvdata(file);
772 int ret;
773
774 if (vb2_is_busy(&video->vb2_q))
775 return -EBUSY;
776
777 ret = __video_try_fmt(video, f);
778 if (ret < 0)
779 return ret;
780
781 video->active_fmt = *f;
782
783 return 0;
784 }
785
video_enum_input(struct file * file,void * fh,struct v4l2_input * input)786 static int video_enum_input(struct file *file, void *fh,
787 struct v4l2_input *input)
788 {
789 if (input->index > 0)
790 return -EINVAL;
791
792 strscpy(input->name, "camera", sizeof(input->name));
793 input->type = V4L2_INPUT_TYPE_CAMERA;
794
795 return 0;
796 }
797
video_g_input(struct file * file,void * fh,unsigned int * input)798 static int video_g_input(struct file *file, void *fh, unsigned int *input)
799 {
800 *input = 0;
801
802 return 0;
803 }
804
video_s_input(struct file * file,void * fh,unsigned int input)805 static int video_s_input(struct file *file, void *fh, unsigned int input)
806 {
807 return input == 0 ? 0 : -EINVAL;
808 }
809
810 static const struct v4l2_ioctl_ops msm_vid_ioctl_ops = {
811 .vidioc_querycap = video_querycap,
812 .vidioc_enum_fmt_vid_cap = video_enum_fmt,
813 .vidioc_enum_framesizes = video_enum_framesizes,
814 .vidioc_g_fmt_vid_cap_mplane = video_g_fmt,
815 .vidioc_s_fmt_vid_cap_mplane = video_s_fmt,
816 .vidioc_try_fmt_vid_cap_mplane = video_try_fmt,
817 .vidioc_reqbufs = vb2_ioctl_reqbufs,
818 .vidioc_querybuf = vb2_ioctl_querybuf,
819 .vidioc_qbuf = vb2_ioctl_qbuf,
820 .vidioc_expbuf = vb2_ioctl_expbuf,
821 .vidioc_dqbuf = vb2_ioctl_dqbuf,
822 .vidioc_create_bufs = vb2_ioctl_create_bufs,
823 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
824 .vidioc_streamon = vb2_ioctl_streamon,
825 .vidioc_streamoff = vb2_ioctl_streamoff,
826 .vidioc_enum_input = video_enum_input,
827 .vidioc_g_input = video_g_input,
828 .vidioc_s_input = video_s_input,
829 };
830
831 /* -----------------------------------------------------------------------------
832 * V4L2 file operations
833 */
834
video_open(struct file * file)835 static int video_open(struct file *file)
836 {
837 struct video_device *vdev = video_devdata(file);
838 struct camss_video *video = video_drvdata(file);
839 struct v4l2_fh *vfh;
840 int ret;
841
842 mutex_lock(&video->lock);
843
844 vfh = kzalloc(sizeof(*vfh), GFP_KERNEL);
845 if (vfh == NULL) {
846 ret = -ENOMEM;
847 goto error_alloc;
848 }
849
850 v4l2_fh_init(vfh, vdev);
851 v4l2_fh_add(vfh);
852
853 file->private_data = vfh;
854
855 ret = v4l2_pipeline_pm_get(&vdev->entity);
856 if (ret < 0) {
857 dev_err(video->camss->dev, "Failed to power up pipeline: %d\n",
858 ret);
859 goto error_pm_use;
860 }
861
862 mutex_unlock(&video->lock);
863
864 return 0;
865
866 error_pm_use:
867 v4l2_fh_release(file);
868
869 error_alloc:
870 mutex_unlock(&video->lock);
871
872 return ret;
873 }
874
video_release(struct file * file)875 static int video_release(struct file *file)
876 {
877 struct video_device *vdev = video_devdata(file);
878
879 vb2_fop_release(file);
880
881 v4l2_pipeline_pm_put(&vdev->entity);
882
883 file->private_data = NULL;
884
885 return 0;
886 }
887
888 static const struct v4l2_file_operations msm_vid_fops = {
889 .owner = THIS_MODULE,
890 .unlocked_ioctl = video_ioctl2,
891 .open = video_open,
892 .release = video_release,
893 .poll = vb2_fop_poll,
894 .mmap = vb2_fop_mmap,
895 .read = vb2_fop_read,
896 };
897
898 /* -----------------------------------------------------------------------------
899 * CAMSS video core
900 */
901
msm_video_release(struct video_device * vdev)902 static void msm_video_release(struct video_device *vdev)
903 {
904 struct camss_video *video = video_get_drvdata(vdev);
905
906 media_entity_cleanup(&vdev->entity);
907
908 mutex_destroy(&video->q_lock);
909 mutex_destroy(&video->lock);
910
911 if (atomic_dec_and_test(&video->camss->ref_count))
912 camss_delete(video->camss);
913 }
914
915 /*
916 * msm_video_init_format - Helper function to initialize format
917 * @video: struct camss_video
918 *
919 * Initialize pad format with default value.
920 *
921 * Return 0 on success or a negative error code otherwise
922 */
msm_video_init_format(struct camss_video * video)923 static int msm_video_init_format(struct camss_video *video)
924 {
925 int ret;
926 struct v4l2_format format = {
927 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
928 .fmt.pix_mp = {
929 .width = 1920,
930 .height = 1080,
931 .pixelformat = video->formats[0].pixelformat,
932 },
933 };
934
935 ret = __video_try_fmt(video, &format);
936 if (ret < 0)
937 return ret;
938
939 video->active_fmt = format;
940
941 return 0;
942 }
943
944 /*
945 * msm_video_register - Register a video device node
946 * @video: struct camss_video
947 * @v4l2_dev: V4L2 device
948 * @name: name to be used for the video device node
949 *
950 * Initialize and register a video device node to a V4L2 device. Also
951 * initialize the vb2 queue.
952 *
953 * Return 0 on success or a negative error code otherwise
954 */
955
msm_video_register(struct camss_video * video,struct v4l2_device * v4l2_dev,const char * name,int is_pix)956 int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev,
957 const char *name, int is_pix)
958 {
959 struct media_pad *pad = &video->pad;
960 struct video_device *vdev;
961 struct vb2_queue *q;
962 int ret;
963
964 vdev = &video->vdev;
965
966 mutex_init(&video->q_lock);
967
968 q = &video->vb2_q;
969 q->drv_priv = video;
970 q->mem_ops = &vb2_dma_sg_memops;
971 q->ops = &msm_video_vb2_q_ops;
972 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
973 q->io_modes = VB2_DMABUF | VB2_MMAP | VB2_READ;
974 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
975 q->buf_struct_size = sizeof(struct camss_buffer);
976 q->dev = video->camss->dev;
977 q->lock = &video->q_lock;
978 ret = vb2_queue_init(q);
979 if (ret < 0) {
980 dev_err(v4l2_dev->dev, "Failed to init vb2 queue: %d\n", ret);
981 goto error_vb2_init;
982 }
983
984 pad->flags = MEDIA_PAD_FL_SINK;
985 ret = media_entity_pads_init(&vdev->entity, 1, pad);
986 if (ret < 0) {
987 dev_err(v4l2_dev->dev, "Failed to init video entity: %d\n",
988 ret);
989 goto error_vb2_init;
990 }
991
992 mutex_init(&video->lock);
993
994 if (video->camss->version == CAMSS_8x16) {
995 if (is_pix) {
996 video->formats = formats_pix_8x16;
997 video->nformats = ARRAY_SIZE(formats_pix_8x16);
998 } else {
999 video->formats = formats_rdi_8x16;
1000 video->nformats = ARRAY_SIZE(formats_rdi_8x16);
1001 }
1002 } else if (video->camss->version == CAMSS_8x96 ||
1003 video->camss->version == CAMSS_660) {
1004 if (is_pix) {
1005 video->formats = formats_pix_8x96;
1006 video->nformats = ARRAY_SIZE(formats_pix_8x96);
1007 } else {
1008 video->formats = formats_rdi_8x96;
1009 video->nformats = ARRAY_SIZE(formats_rdi_8x96);
1010 }
1011 } else if (video->camss->version == CAMSS_845 ||
1012 video->camss->version == CAMSS_8250) {
1013 video->formats = formats_rdi_845;
1014 video->nformats = ARRAY_SIZE(formats_rdi_845);
1015 } else {
1016 ret = -EINVAL;
1017 goto error_video_register;
1018 }
1019
1020 ret = msm_video_init_format(video);
1021 if (ret < 0) {
1022 dev_err(v4l2_dev->dev, "Failed to init format: %d\n", ret);
1023 goto error_video_register;
1024 }
1025
1026 vdev->fops = &msm_vid_fops;
1027 vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_STREAMING
1028 | V4L2_CAP_READWRITE | V4L2_CAP_IO_MC;
1029 vdev->ioctl_ops = &msm_vid_ioctl_ops;
1030 vdev->release = msm_video_release;
1031 vdev->v4l2_dev = v4l2_dev;
1032 vdev->vfl_dir = VFL_DIR_RX;
1033 vdev->queue = &video->vb2_q;
1034 vdev->lock = &video->lock;
1035 strscpy(vdev->name, name, sizeof(vdev->name));
1036
1037 ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1038 if (ret < 0) {
1039 dev_err(v4l2_dev->dev, "Failed to register video device: %d\n",
1040 ret);
1041 goto error_video_register;
1042 }
1043
1044 video_set_drvdata(vdev, video);
1045 atomic_inc(&video->camss->ref_count);
1046
1047 return 0;
1048
1049 error_video_register:
1050 media_entity_cleanup(&vdev->entity);
1051 mutex_destroy(&video->lock);
1052 error_vb2_init:
1053 mutex_destroy(&video->q_lock);
1054
1055 return ret;
1056 }
1057
msm_video_unregister(struct camss_video * video)1058 void msm_video_unregister(struct camss_video *video)
1059 {
1060 atomic_inc(&video->camss->ref_count);
1061 vb2_video_unregister_device(&video->vdev);
1062 atomic_dec(&video->camss->ref_count);
1063 }
1064