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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
27struct fract {
28 u8 numerator;
29 u8 denominator;
30};
31
32
33
34
35
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38
39
40
41struct 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
50static 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
87static 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
136static 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_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 } },
183};
184
185static const struct camss_format_info formats_pix_8x16[] = {
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 } },
218};
219
220static const struct camss_format_info formats_pix_8x96[] = {
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 } },
261};
262
263
264
265
266
267static int video_find_format(u32 code, u32 pixelformat,
268 const struct camss_format_info *formats,
269 unsigned int nformats)
270{
271 int i;
272
273 for (i = 0; i < nformats; i++) {
274 if (formats[i].code == code &&
275 formats[i].pixelformat == pixelformat)
276 return i;
277 }
278
279 for (i = 0; i < nformats; i++)
280 if (formats[i].code == code)
281 return i;
282
283 WARN_ON(1);
284
285 return -EINVAL;
286}
287
288
289
290
291
292
293
294
295
296
297
298
299static int video_mbus_to_pix_mp(const struct v4l2_mbus_framefmt *mbus,
300 struct v4l2_pix_format_mplane *pix,
301 const struct camss_format_info *f,
302 unsigned int alignment)
303{
304 unsigned int i;
305 u32 bytesperline;
306
307 memset(pix, 0, sizeof(*pix));
308 v4l2_fill_pix_format_mplane(pix, mbus);
309 pix->pixelformat = f->pixelformat;
310 pix->num_planes = f->planes;
311 for (i = 0; i < pix->num_planes; i++) {
312 bytesperline = pix->width / f->hsub[i].numerator *
313 f->hsub[i].denominator * f->bpp[i] / 8;
314 bytesperline = ALIGN(bytesperline, alignment);
315 pix->plane_fmt[i].bytesperline = bytesperline;
316 pix->plane_fmt[i].sizeimage = pix->height /
317 f->vsub[i].numerator * f->vsub[i].denominator *
318 bytesperline;
319 }
320
321 return 0;
322}
323
324static struct v4l2_subdev *video_remote_subdev(struct camss_video *video,
325 u32 *pad)
326{
327 struct media_pad *remote;
328
329 remote = media_entity_remote_pad(&video->pad);
330
331 if (!remote || !is_media_entity_v4l2_subdev(remote->entity))
332 return NULL;
333
334 if (pad)
335 *pad = remote->index;
336
337 return media_entity_to_v4l2_subdev(remote->entity);
338}
339
340static int video_get_subdev_format(struct camss_video *video,
341 struct v4l2_format *format)
342{
343 struct v4l2_subdev_format fmt;
344 struct v4l2_subdev *subdev;
345 u32 pad;
346 int ret;
347
348 subdev = video_remote_subdev(video, &pad);
349 if (subdev == NULL)
350 return -EPIPE;
351
352 fmt.pad = pad;
353 fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
354
355 ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &fmt);
356 if (ret)
357 return ret;
358
359 ret = video_find_format(fmt.format.code,
360 format->fmt.pix_mp.pixelformat,
361 video->formats, video->nformats);
362 if (ret < 0)
363 return ret;
364
365 format->type = video->type;
366
367 return video_mbus_to_pix_mp(&fmt.format, &format->fmt.pix_mp,
368 &video->formats[ret], video->bpl_alignment);
369}
370
371
372
373
374
375static int video_queue_setup(struct vb2_queue *q,
376 unsigned int *num_buffers, unsigned int *num_planes,
377 unsigned int sizes[], struct device *alloc_devs[])
378{
379 struct camss_video *video = vb2_get_drv_priv(q);
380 const struct v4l2_pix_format_mplane *format =
381 &video->active_fmt.fmt.pix_mp;
382 unsigned int i;
383
384 if (*num_planes) {
385 if (*num_planes != format->num_planes)
386 return -EINVAL;
387
388 for (i = 0; i < *num_planes; i++)
389 if (sizes[i] < format->plane_fmt[i].sizeimage)
390 return -EINVAL;
391
392 return 0;
393 }
394
395 *num_planes = format->num_planes;
396
397 for (i = 0; i < *num_planes; i++)
398 sizes[i] = format->plane_fmt[i].sizeimage;
399
400 return 0;
401}
402
403static int video_buf_init(struct vb2_buffer *vb)
404{
405 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
406 struct camss_video *video = vb2_get_drv_priv(vb->vb2_queue);
407 struct camss_buffer *buffer = container_of(vbuf, struct camss_buffer,
408 vb);
409 const struct v4l2_pix_format_mplane *format =
410 &video->active_fmt.fmt.pix_mp;
411 struct sg_table *sgt;
412 unsigned int i;
413
414 for (i = 0; i < format->num_planes; i++) {
415 sgt = vb2_dma_sg_plane_desc(vb, i);
416 if (!sgt)
417 return -EFAULT;
418
419 buffer->addr[i] = sg_dma_address(sgt->sgl);
420 }
421
422 if (format->pixelformat == V4L2_PIX_FMT_NV12 ||
423 format->pixelformat == V4L2_PIX_FMT_NV21 ||
424 format->pixelformat == V4L2_PIX_FMT_NV16 ||
425 format->pixelformat == V4L2_PIX_FMT_NV61)
426 buffer->addr[1] = buffer->addr[0] +
427 format->plane_fmt[0].bytesperline *
428 format->height;
429
430 return 0;
431}
432
433static int video_buf_prepare(struct vb2_buffer *vb)
434{
435 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
436 struct camss_video *video = vb2_get_drv_priv(vb->vb2_queue);
437 const struct v4l2_pix_format_mplane *format =
438 &video->active_fmt.fmt.pix_mp;
439 unsigned int i;
440
441 for (i = 0; i < format->num_planes; i++) {
442 if (format->plane_fmt[i].sizeimage > vb2_plane_size(vb, i))
443 return -EINVAL;
444
445 vb2_set_plane_payload(vb, i, format->plane_fmt[i].sizeimage);
446 }
447
448 vbuf->field = V4L2_FIELD_NONE;
449
450 return 0;
451}
452
453static void video_buf_queue(struct vb2_buffer *vb)
454{
455 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
456 struct camss_video *video = vb2_get_drv_priv(vb->vb2_queue);
457 struct camss_buffer *buffer = container_of(vbuf, struct camss_buffer,
458 vb);
459
460 video->ops->queue_buffer(video, buffer);
461}
462
463static int video_check_format(struct camss_video *video)
464{
465 struct v4l2_pix_format_mplane *pix = &video->active_fmt.fmt.pix_mp;
466 struct v4l2_format format;
467 struct v4l2_pix_format_mplane *sd_pix = &format.fmt.pix_mp;
468 int ret;
469
470 sd_pix->pixelformat = pix->pixelformat;
471 ret = video_get_subdev_format(video, &format);
472 if (ret < 0)
473 return ret;
474
475 if (pix->pixelformat != sd_pix->pixelformat ||
476 pix->height != sd_pix->height ||
477 pix->width != sd_pix->width ||
478 pix->num_planes != sd_pix->num_planes ||
479 pix->field != format.fmt.pix_mp.field)
480 return -EPIPE;
481
482 return 0;
483}
484
485static int video_start_streaming(struct vb2_queue *q, unsigned int count)
486{
487 struct camss_video *video = vb2_get_drv_priv(q);
488 struct video_device *vdev = &video->vdev;
489 struct media_entity *entity;
490 struct media_pad *pad;
491 struct v4l2_subdev *subdev;
492 int ret;
493
494 ret = media_pipeline_start(&vdev->entity, &video->pipe);
495 if (ret < 0)
496 return ret;
497
498 ret = video_check_format(video);
499 if (ret < 0)
500 goto error;
501
502 entity = &vdev->entity;
503 while (1) {
504 pad = &entity->pads[0];
505 if (!(pad->flags & MEDIA_PAD_FL_SINK))
506 break;
507
508 pad = media_entity_remote_pad(pad);
509 if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
510 break;
511
512 entity = pad->entity;
513 subdev = media_entity_to_v4l2_subdev(entity);
514
515 ret = v4l2_subdev_call(subdev, video, s_stream, 1);
516 if (ret < 0 && ret != -ENOIOCTLCMD)
517 goto error;
518 }
519
520 return 0;
521
522error:
523 media_pipeline_stop(&vdev->entity);
524
525 video->ops->flush_buffers(video, VB2_BUF_STATE_QUEUED);
526
527 return ret;
528}
529
530static void video_stop_streaming(struct vb2_queue *q)
531{
532 struct camss_video *video = vb2_get_drv_priv(q);
533 struct video_device *vdev = &video->vdev;
534 struct media_entity *entity;
535 struct media_pad *pad;
536 struct v4l2_subdev *subdev;
537
538 entity = &vdev->entity;
539 while (1) {
540 pad = &entity->pads[0];
541 if (!(pad->flags & MEDIA_PAD_FL_SINK))
542 break;
543
544 pad = media_entity_remote_pad(pad);
545 if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
546 break;
547
548 entity = pad->entity;
549 subdev = media_entity_to_v4l2_subdev(entity);
550
551 v4l2_subdev_call(subdev, video, s_stream, 0);
552 }
553
554 media_pipeline_stop(&vdev->entity);
555
556 video->ops->flush_buffers(video, VB2_BUF_STATE_ERROR);
557}
558
559static const struct vb2_ops msm_video_vb2_q_ops = {
560 .queue_setup = video_queue_setup,
561 .wait_prepare = vb2_ops_wait_prepare,
562 .wait_finish = vb2_ops_wait_finish,
563 .buf_init = video_buf_init,
564 .buf_prepare = video_buf_prepare,
565 .buf_queue = video_buf_queue,
566 .start_streaming = video_start_streaming,
567 .stop_streaming = video_stop_streaming,
568};
569
570
571
572
573
574static int video_querycap(struct file *file, void *fh,
575 struct v4l2_capability *cap)
576{
577 struct camss_video *video = video_drvdata(file);
578
579 strscpy(cap->driver, "qcom-camss", sizeof(cap->driver));
580 strscpy(cap->card, "Qualcomm Camera Subsystem", sizeof(cap->card));
581 snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
582 dev_name(video->camss->dev));
583
584 return 0;
585}
586
587static int video_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
588{
589 struct camss_video *video = video_drvdata(file);
590 int i, j, k;
591 u32 mcode = f->mbus_code;
592
593 if (f->type != video->type)
594 return -EINVAL;
595
596 if (f->index >= video->nformats)
597 return -EINVAL;
598
599
600
601
602
603
604
605
606
607
608
609
610
611 k = -1;
612 for (i = 0; i < video->nformats; i++) {
613 if (mcode != 0 && video->formats[i].code != mcode)
614 continue;
615
616 for (j = 0; j < i; j++) {
617 if (mcode != 0 && video->formats[j].code != mcode)
618 continue;
619 if (video->formats[i].pixelformat ==
620 video->formats[j].pixelformat)
621 break;
622 }
623
624 if (j == i)
625 k++;
626
627 if (k == f->index)
628 break;
629 }
630
631 if (k == -1 || k < f->index)
632
633
634
635
636
637 return -EINVAL;
638
639 f->pixelformat = video->formats[i].pixelformat;
640
641 return 0;
642}
643
644static int video_enum_framesizes(struct file *file, void *fh,
645 struct v4l2_frmsizeenum *fsize)
646{
647 struct camss_video *video = video_drvdata(file);
648 int i;
649
650 if (fsize->index)
651 return -EINVAL;
652
653
654 for (i = 0; i < video->nformats; i++) {
655 if (video->formats[i].pixelformat == fsize->pixel_format)
656 break;
657 }
658
659 if (i == video->nformats)
660 return -EINVAL;
661
662 fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
663 fsize->stepwise.min_width = CAMSS_FRAME_MIN_WIDTH;
664 fsize->stepwise.max_width = CAMSS_FRAME_MAX_WIDTH;
665 fsize->stepwise.min_height = CAMSS_FRAME_MIN_HEIGHT;
666 fsize->stepwise.max_height = (video->line_based) ?
667 CAMSS_FRAME_MAX_HEIGHT_PIX : CAMSS_FRAME_MAX_HEIGHT_RDI;
668 fsize->stepwise.step_width = 1;
669 fsize->stepwise.step_height = 1;
670
671 return 0;
672}
673
674static int video_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
675{
676 struct camss_video *video = video_drvdata(file);
677
678 *f = video->active_fmt;
679
680 return 0;
681}
682
683static int __video_try_fmt(struct camss_video *video, struct v4l2_format *f)
684{
685 struct v4l2_pix_format_mplane *pix_mp;
686 const struct camss_format_info *fi;
687 struct v4l2_plane_pix_format *p;
688 u32 bytesperline[3] = { 0 };
689 u32 sizeimage[3] = { 0 };
690 u32 width, height;
691 u32 bpl, lines;
692 int i, j;
693
694 pix_mp = &f->fmt.pix_mp;
695
696 if (video->line_based)
697 for (i = 0; i < pix_mp->num_planes && i < 3; i++) {
698 p = &pix_mp->plane_fmt[i];
699 bytesperline[i] = clamp_t(u32, p->bytesperline,
700 1, 65528);
701 sizeimage[i] = clamp_t(u32, p->sizeimage,
702 bytesperline[i],
703 bytesperline[i] * CAMSS_FRAME_MAX_HEIGHT_PIX);
704 }
705
706 for (j = 0; j < video->nformats; j++)
707 if (pix_mp->pixelformat == video->formats[j].pixelformat)
708 break;
709
710 if (j == video->nformats)
711 j = 0;
712
713 fi = &video->formats[j];
714 width = pix_mp->width;
715 height = pix_mp->height;
716
717 memset(pix_mp, 0, sizeof(*pix_mp));
718
719 pix_mp->pixelformat = fi->pixelformat;
720 pix_mp->width = clamp_t(u32, width, 1, CAMSS_FRAME_MAX_WIDTH);
721 pix_mp->height = clamp_t(u32, height, 1, CAMSS_FRAME_MAX_HEIGHT_RDI);
722 pix_mp->num_planes = fi->planes;
723 for (i = 0; i < pix_mp->num_planes; i++) {
724 bpl = pix_mp->width / fi->hsub[i].numerator *
725 fi->hsub[i].denominator * fi->bpp[i] / 8;
726 bpl = ALIGN(bpl, video->bpl_alignment);
727 pix_mp->plane_fmt[i].bytesperline = bpl;
728 pix_mp->plane_fmt[i].sizeimage = pix_mp->height /
729 fi->vsub[i].numerator * fi->vsub[i].denominator * bpl;
730 }
731
732 pix_mp->field = V4L2_FIELD_NONE;
733 pix_mp->colorspace = V4L2_COLORSPACE_SRGB;
734 pix_mp->flags = 0;
735 pix_mp->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(pix_mp->colorspace);
736 pix_mp->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true,
737 pix_mp->colorspace, pix_mp->ycbcr_enc);
738 pix_mp->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(pix_mp->colorspace);
739
740 if (video->line_based)
741 for (i = 0; i < pix_mp->num_planes; i++) {
742 p = &pix_mp->plane_fmt[i];
743 p->bytesperline = clamp_t(u32, p->bytesperline,
744 1, 65528);
745 p->sizeimage = clamp_t(u32, p->sizeimage,
746 p->bytesperline,
747 p->bytesperline * CAMSS_FRAME_MAX_HEIGHT_PIX);
748 lines = p->sizeimage / p->bytesperline;
749
750 if (p->bytesperline < bytesperline[i])
751 p->bytesperline = ALIGN(bytesperline[i], 8);
752
753 if (p->sizeimage < p->bytesperline * lines)
754 p->sizeimage = p->bytesperline * lines;
755
756 if (p->sizeimage < sizeimage[i])
757 p->sizeimage = sizeimage[i];
758 }
759
760 return 0;
761}
762
763static int video_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
764{
765 struct camss_video *video = video_drvdata(file);
766
767 return __video_try_fmt(video, f);
768}
769
770static int video_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
771{
772 struct camss_video *video = video_drvdata(file);
773 int ret;
774
775 if (vb2_is_busy(&video->vb2_q))
776 return -EBUSY;
777
778 ret = __video_try_fmt(video, f);
779 if (ret < 0)
780 return ret;
781
782 video->active_fmt = *f;
783
784 return 0;
785}
786
787static int video_enum_input(struct file *file, void *fh,
788 struct v4l2_input *input)
789{
790 if (input->index > 0)
791 return -EINVAL;
792
793 strscpy(input->name, "camera", sizeof(input->name));
794 input->type = V4L2_INPUT_TYPE_CAMERA;
795
796 return 0;
797}
798
799static int video_g_input(struct file *file, void *fh, unsigned int *input)
800{
801 *input = 0;
802
803 return 0;
804}
805
806static int video_s_input(struct file *file, void *fh, unsigned int input)
807{
808 return input == 0 ? 0 : -EINVAL;
809}
810
811static const struct v4l2_ioctl_ops msm_vid_ioctl_ops = {
812 .vidioc_querycap = video_querycap,
813 .vidioc_enum_fmt_vid_cap = video_enum_fmt,
814 .vidioc_enum_framesizes = video_enum_framesizes,
815 .vidioc_g_fmt_vid_cap_mplane = video_g_fmt,
816 .vidioc_s_fmt_vid_cap_mplane = video_s_fmt,
817 .vidioc_try_fmt_vid_cap_mplane = video_try_fmt,
818 .vidioc_reqbufs = vb2_ioctl_reqbufs,
819 .vidioc_querybuf = vb2_ioctl_querybuf,
820 .vidioc_qbuf = vb2_ioctl_qbuf,
821 .vidioc_expbuf = vb2_ioctl_expbuf,
822 .vidioc_dqbuf = vb2_ioctl_dqbuf,
823 .vidioc_create_bufs = vb2_ioctl_create_bufs,
824 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
825 .vidioc_streamon = vb2_ioctl_streamon,
826 .vidioc_streamoff = vb2_ioctl_streamoff,
827 .vidioc_enum_input = video_enum_input,
828 .vidioc_g_input = video_g_input,
829 .vidioc_s_input = video_s_input,
830};
831
832
833
834
835
836static int video_open(struct file *file)
837{
838 struct video_device *vdev = video_devdata(file);
839 struct camss_video *video = video_drvdata(file);
840 struct v4l2_fh *vfh;
841 int ret;
842
843 mutex_lock(&video->lock);
844
845 vfh = kzalloc(sizeof(*vfh), GFP_KERNEL);
846 if (vfh == NULL) {
847 ret = -ENOMEM;
848 goto error_alloc;
849 }
850
851 v4l2_fh_init(vfh, vdev);
852 v4l2_fh_add(vfh);
853
854 file->private_data = vfh;
855
856 ret = v4l2_pipeline_pm_get(&vdev->entity);
857 if (ret < 0) {
858 dev_err(video->camss->dev, "Failed to power up pipeline: %d\n",
859 ret);
860 goto error_pm_use;
861 }
862
863 mutex_unlock(&video->lock);
864
865 return 0;
866
867error_pm_use:
868 v4l2_fh_release(file);
869
870error_alloc:
871 mutex_unlock(&video->lock);
872
873 return ret;
874}
875
876static int video_release(struct file *file)
877{
878 struct video_device *vdev = video_devdata(file);
879
880 vb2_fop_release(file);
881
882 v4l2_pipeline_pm_put(&vdev->entity);
883
884 file->private_data = NULL;
885
886 return 0;
887}
888
889static const struct v4l2_file_operations msm_vid_fops = {
890 .owner = THIS_MODULE,
891 .unlocked_ioctl = video_ioctl2,
892 .open = video_open,
893 .release = video_release,
894 .poll = vb2_fop_poll,
895 .mmap = vb2_fop_mmap,
896 .read = vb2_fop_read,
897};
898
899
900
901
902
903static void msm_video_release(struct video_device *vdev)
904{
905 struct camss_video *video = video_get_drvdata(vdev);
906
907 media_entity_cleanup(&vdev->entity);
908
909 mutex_destroy(&video->q_lock);
910 mutex_destroy(&video->lock);
911
912 if (atomic_dec_and_test(&video->camss->ref_count))
913 camss_delete(video->camss);
914}
915
916
917
918
919
920
921
922
923
924static int msm_video_init_format(struct camss_video *video)
925{
926 int ret;
927 struct v4l2_format format = {
928 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
929 .fmt.pix_mp = {
930 .width = 1920,
931 .height = 1080,
932 .pixelformat = video->formats[0].pixelformat,
933 },
934 };
935
936 ret = __video_try_fmt(video, &format);
937 if (ret < 0)
938 return ret;
939
940 video->active_fmt = format;
941
942 return 0;
943}
944
945
946
947
948
949
950
951
952
953
954
955
956
957int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev,
958 const char *name, int is_pix)
959{
960 struct media_pad *pad = &video->pad;
961 struct video_device *vdev;
962 struct vb2_queue *q;
963 int ret;
964
965 vdev = &video->vdev;
966
967 mutex_init(&video->q_lock);
968
969 q = &video->vb2_q;
970 q->drv_priv = video;
971 q->mem_ops = &vb2_dma_sg_memops;
972 q->ops = &msm_video_vb2_q_ops;
973 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
974 q->io_modes = VB2_DMABUF | VB2_MMAP | VB2_READ;
975 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
976 q->buf_struct_size = sizeof(struct camss_buffer);
977 q->dev = video->camss->dev;
978 q->lock = &video->q_lock;
979 ret = vb2_queue_init(q);
980 if (ret < 0) {
981 dev_err(v4l2_dev->dev, "Failed to init vb2 queue: %d\n", ret);
982 goto error_vb2_init;
983 }
984
985 pad->flags = MEDIA_PAD_FL_SINK;
986 ret = media_entity_pads_init(&vdev->entity, 1, pad);
987 if (ret < 0) {
988 dev_err(v4l2_dev->dev, "Failed to init video entity: %d\n",
989 ret);
990 goto error_vb2_init;
991 }
992
993 mutex_init(&video->lock);
994
995 if (video->camss->version == CAMSS_8x16) {
996 if (is_pix) {
997 video->formats = formats_pix_8x16;
998 video->nformats = ARRAY_SIZE(formats_pix_8x16);
999 } else {
1000 video->formats = formats_rdi_8x16;
1001 video->nformats = ARRAY_SIZE(formats_rdi_8x16);
1002 }
1003 } else if (video->camss->version == CAMSS_8x96 ||
1004 video->camss->version == CAMSS_660) {
1005 if (is_pix) {
1006 video->formats = formats_pix_8x96;
1007 video->nformats = ARRAY_SIZE(formats_pix_8x96);
1008 } else {
1009 video->formats = formats_rdi_8x96;
1010 video->nformats = ARRAY_SIZE(formats_rdi_8x96);
1011 }
1012 } else if (video->camss->version == CAMSS_845) {
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
1049error_video_register:
1050 media_entity_cleanup(&vdev->entity);
1051 mutex_destroy(&video->lock);
1052error_vb2_init:
1053 mutex_destroy(&video->q_lock);
1054
1055 return ret;
1056}
1057
1058void 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
