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bb677f3a AP |
1 | /* linux/drivers/media/video/s5p-jpeg/jpeg-core.c |
2 | * | |
3 | * Copyright (c) 2011 Samsung Electronics Co., Ltd. | |
4 | * http://www.samsung.com | |
5 | * | |
6 | * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #include <linux/clk.h> | |
14 | #include <linux/err.h> | |
15 | #include <linux/gfp.h> | |
16 | #include <linux/interrupt.h> | |
17 | #include <linux/io.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/module.h> | |
20 | #include <linux/platform_device.h> | |
21 | #include <linux/pm_runtime.h> | |
22 | #include <linux/slab.h> | |
23 | #include <linux/spinlock.h> | |
24 | #include <linux/string.h> | |
25 | #include <media/v4l2-mem2mem.h> | |
26 | #include <media/v4l2-ioctl.h> | |
27 | #include <media/videobuf2-core.h> | |
28 | #include <media/videobuf2-dma-contig.h> | |
29 | ||
30 | #include "jpeg-core.h" | |
31 | #include "jpeg-hw.h" | |
32 | ||
33 | static struct s5p_jpeg_fmt formats_enc[] = { | |
34 | { | |
fb6f8c02 AP |
35 | .name = "JPEG JFIF", |
36 | .fourcc = V4L2_PIX_FMT_JPEG, | |
37 | .colplanes = 1, | |
bb677f3a AP |
38 | .types = MEM2MEM_CAPTURE, |
39 | }, | |
40 | { | |
41 | .name = "YUV 4:2:2 packed, YCbYCr", | |
42 | .fourcc = V4L2_PIX_FMT_YUYV, | |
43 | .depth = 16, | |
44 | .colplanes = 1, | |
fb6f8c02 | 45 | .types = MEM2MEM_OUTPUT, |
bb677f3a AP |
46 | }, |
47 | { | |
48 | .name = "RGB565", | |
49 | .fourcc = V4L2_PIX_FMT_RGB565, | |
50 | .depth = 16, | |
51 | .colplanes = 1, | |
52 | .types = MEM2MEM_OUTPUT, | |
53 | }, | |
54 | }; | |
55 | #define NUM_FORMATS_ENC ARRAY_SIZE(formats_enc) | |
56 | ||
57 | static struct s5p_jpeg_fmt formats_dec[] = { | |
58 | { | |
59 | .name = "YUV 4:2:0 planar, YCbCr", | |
60 | .fourcc = V4L2_PIX_FMT_YUV420, | |
61 | .depth = 12, | |
62 | .colplanes = 3, | |
63 | .h_align = 4, | |
64 | .v_align = 4, | |
65 | .types = MEM2MEM_CAPTURE, | |
66 | }, | |
67 | { | |
68 | .name = "YUV 4:2:2 packed, YCbYCr", | |
69 | .fourcc = V4L2_PIX_FMT_YUYV, | |
70 | .depth = 16, | |
71 | .colplanes = 1, | |
72 | .h_align = 4, | |
73 | .v_align = 3, | |
74 | .types = MEM2MEM_CAPTURE, | |
75 | }, | |
76 | { | |
77 | .name = "JPEG JFIF", | |
78 | .fourcc = V4L2_PIX_FMT_JPEG, | |
79 | .colplanes = 1, | |
80 | .types = MEM2MEM_OUTPUT, | |
81 | }, | |
82 | }; | |
83 | #define NUM_FORMATS_DEC ARRAY_SIZE(formats_dec) | |
84 | ||
85 | static const unsigned char qtbl_luminance[4][64] = { | |
86 | {/* level 1 - high quality */ | |
87 | 8, 6, 6, 8, 12, 14, 16, 17, | |
88 | 6, 6, 6, 8, 10, 13, 12, 15, | |
89 | 6, 6, 7, 8, 13, 14, 18, 24, | |
90 | 8, 8, 8, 14, 13, 19, 24, 35, | |
91 | 12, 10, 13, 13, 20, 26, 34, 39, | |
92 | 14, 13, 14, 19, 26, 34, 39, 39, | |
93 | 16, 12, 18, 24, 34, 39, 39, 39, | |
94 | 17, 15, 24, 35, 39, 39, 39, 39 | |
95 | }, | |
96 | {/* level 2 */ | |
97 | 12, 8, 8, 12, 17, 21, 24, 23, | |
98 | 8, 9, 9, 11, 15, 19, 18, 23, | |
99 | 8, 9, 10, 12, 19, 20, 27, 36, | |
100 | 12, 11, 12, 21, 20, 28, 36, 53, | |
101 | 17, 15, 19, 20, 30, 39, 51, 59, | |
102 | 21, 19, 20, 28, 39, 51, 59, 59, | |
103 | 24, 18, 27, 36, 51, 59, 59, 59, | |
104 | 23, 23, 36, 53, 59, 59, 59, 59 | |
105 | }, | |
106 | {/* level 3 */ | |
107 | 16, 11, 11, 16, 23, 27, 31, 30, | |
108 | 11, 12, 12, 15, 20, 23, 23, 30, | |
109 | 11, 12, 13, 16, 23, 26, 35, 47, | |
110 | 16, 15, 16, 23, 26, 37, 47, 64, | |
111 | 23, 20, 23, 26, 39, 51, 64, 64, | |
112 | 27, 23, 26, 37, 51, 64, 64, 64, | |
113 | 31, 23, 35, 47, 64, 64, 64, 64, | |
114 | 30, 30, 47, 64, 64, 64, 64, 64 | |
115 | }, | |
116 | {/*level 4 - low quality */ | |
117 | 20, 16, 25, 39, 50, 46, 62, 68, | |
118 | 16, 18, 23, 38, 38, 53, 65, 68, | |
119 | 25, 23, 31, 38, 53, 65, 68, 68, | |
120 | 39, 38, 38, 53, 65, 68, 68, 68, | |
121 | 50, 38, 53, 65, 68, 68, 68, 68, | |
122 | 46, 53, 65, 68, 68, 68, 68, 68, | |
123 | 62, 65, 68, 68, 68, 68, 68, 68, | |
124 | 68, 68, 68, 68, 68, 68, 68, 68 | |
125 | } | |
126 | }; | |
127 | ||
128 | static const unsigned char qtbl_chrominance[4][64] = { | |
129 | {/* level 1 - high quality */ | |
130 | 9, 8, 9, 11, 14, 17, 19, 24, | |
131 | 8, 10, 9, 11, 14, 13, 17, 22, | |
132 | 9, 9, 13, 14, 13, 15, 23, 26, | |
133 | 11, 11, 14, 14, 15, 20, 26, 33, | |
134 | 14, 14, 13, 15, 20, 24, 33, 39, | |
135 | 17, 13, 15, 20, 24, 32, 39, 39, | |
136 | 19, 17, 23, 26, 33, 39, 39, 39, | |
137 | 24, 22, 26, 33, 39, 39, 39, 39 | |
138 | }, | |
139 | {/* level 2 */ | |
140 | 13, 11, 13, 16, 20, 20, 29, 37, | |
141 | 11, 14, 14, 14, 16, 20, 26, 32, | |
142 | 13, 14, 15, 17, 20, 23, 35, 40, | |
143 | 16, 14, 17, 21, 23, 30, 40, 50, | |
144 | 20, 16, 20, 23, 30, 37, 50, 59, | |
145 | 20, 20, 23, 30, 37, 48, 59, 59, | |
146 | 29, 26, 35, 40, 50, 59, 59, 59, | |
147 | 37, 32, 40, 50, 59, 59, 59, 59 | |
148 | }, | |
149 | {/* level 3 */ | |
150 | 17, 15, 17, 21, 20, 26, 38, 48, | |
151 | 15, 19, 18, 17, 20, 26, 35, 43, | |
152 | 17, 18, 20, 22, 26, 30, 46, 53, | |
153 | 21, 17, 22, 28, 30, 39, 53, 64, | |
154 | 20, 20, 26, 30, 39, 48, 64, 64, | |
155 | 26, 26, 30, 39, 48, 63, 64, 64, | |
156 | 38, 35, 46, 53, 64, 64, 64, 64, | |
157 | 48, 43, 53, 64, 64, 64, 64, 64 | |
158 | }, | |
159 | {/*level 4 - low quality */ | |
160 | 21, 25, 32, 38, 54, 68, 68, 68, | |
161 | 25, 28, 24, 38, 54, 68, 68, 68, | |
162 | 32, 24, 32, 43, 66, 68, 68, 68, | |
163 | 38, 38, 43, 53, 68, 68, 68, 68, | |
164 | 54, 54, 66, 68, 68, 68, 68, 68, | |
165 | 68, 68, 68, 68, 68, 68, 68, 68, | |
166 | 68, 68, 68, 68, 68, 68, 68, 68, | |
167 | 68, 68, 68, 68, 68, 68, 68, 68 | |
168 | } | |
169 | }; | |
170 | ||
171 | static const unsigned char hdctbl0[16] = { | |
172 | 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 | |
173 | }; | |
174 | ||
175 | static const unsigned char hdctblg0[12] = { | |
176 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb | |
177 | }; | |
178 | static const unsigned char hactbl0[16] = { | |
179 | 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d | |
180 | }; | |
181 | static const unsigned char hactblg0[162] = { | |
182 | 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, | |
183 | 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, | |
184 | 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, | |
185 | 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, | |
186 | 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, | |
187 | 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, | |
188 | 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, | |
189 | 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, | |
190 | 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, | |
191 | 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, | |
192 | 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, | |
193 | 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, | |
194 | 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, | |
195 | 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, | |
196 | 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, | |
197 | 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, | |
198 | 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, | |
199 | 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2, | |
200 | 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, | |
201 | 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, | |
202 | 0xf9, 0xfa | |
203 | }; | |
204 | ||
15f4bc3b SN |
205 | static inline struct s5p_jpeg_ctx *ctrl_to_ctx(struct v4l2_ctrl *c) |
206 | { | |
207 | return container_of(c->handler, struct s5p_jpeg_ctx, ctrl_handler); | |
208 | } | |
209 | ||
275de24d SN |
210 | static inline struct s5p_jpeg_ctx *fh_to_ctx(struct v4l2_fh *fh) |
211 | { | |
212 | return container_of(fh, struct s5p_jpeg_ctx, fh); | |
213 | } | |
214 | ||
bb677f3a AP |
215 | static inline void jpeg_set_qtbl(void __iomem *regs, const unsigned char *qtbl, |
216 | unsigned long tab, int len) | |
217 | { | |
218 | int i; | |
219 | ||
220 | for (i = 0; i < len; i++) | |
221 | writel((unsigned int)qtbl[i], regs + tab + (i * 0x04)); | |
222 | } | |
223 | ||
224 | static inline void jpeg_set_qtbl_lum(void __iomem *regs, int quality) | |
225 | { | |
226 | /* this driver fills quantisation table 0 with data for luma */ | |
227 | jpeg_set_qtbl(regs, qtbl_luminance[quality], S5P_JPG_QTBL_CONTENT(0), | |
228 | ARRAY_SIZE(qtbl_luminance[quality])); | |
229 | } | |
230 | ||
231 | static inline void jpeg_set_qtbl_chr(void __iomem *regs, int quality) | |
232 | { | |
233 | /* this driver fills quantisation table 1 with data for chroma */ | |
234 | jpeg_set_qtbl(regs, qtbl_chrominance[quality], S5P_JPG_QTBL_CONTENT(1), | |
235 | ARRAY_SIZE(qtbl_chrominance[quality])); | |
236 | } | |
237 | ||
238 | static inline void jpeg_set_htbl(void __iomem *regs, const unsigned char *htbl, | |
239 | unsigned long tab, int len) | |
240 | { | |
241 | int i; | |
242 | ||
243 | for (i = 0; i < len; i++) | |
244 | writel((unsigned int)htbl[i], regs + tab + (i * 0x04)); | |
245 | } | |
246 | ||
247 | static inline void jpeg_set_hdctbl(void __iomem *regs) | |
248 | { | |
249 | /* this driver fills table 0 for this component */ | |
250 | jpeg_set_htbl(regs, hdctbl0, S5P_JPG_HDCTBL(0), ARRAY_SIZE(hdctbl0)); | |
251 | } | |
252 | ||
253 | static inline void jpeg_set_hdctblg(void __iomem *regs) | |
254 | { | |
255 | /* this driver fills table 0 for this component */ | |
256 | jpeg_set_htbl(regs, hdctblg0, S5P_JPG_HDCTBLG(0), ARRAY_SIZE(hdctblg0)); | |
257 | } | |
258 | ||
259 | static inline void jpeg_set_hactbl(void __iomem *regs) | |
260 | { | |
261 | /* this driver fills table 0 for this component */ | |
262 | jpeg_set_htbl(regs, hactbl0, S5P_JPG_HACTBL(0), ARRAY_SIZE(hactbl0)); | |
263 | } | |
264 | ||
265 | static inline void jpeg_set_hactblg(void __iomem *regs) | |
266 | { | |
267 | /* this driver fills table 0 for this component */ | |
268 | jpeg_set_htbl(regs, hactblg0, S5P_JPG_HACTBLG(0), ARRAY_SIZE(hactblg0)); | |
269 | } | |
270 | ||
271 | /* | |
272 | * ============================================================================ | |
273 | * Device file operations | |
274 | * ============================================================================ | |
275 | */ | |
276 | ||
277 | static int queue_init(void *priv, struct vb2_queue *src_vq, | |
278 | struct vb2_queue *dst_vq); | |
279 | static struct s5p_jpeg_fmt *s5p_jpeg_find_format(unsigned int mode, | |
280 | __u32 pixelformat); | |
15f4bc3b | 281 | static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx); |
bb677f3a AP |
282 | |
283 | static int s5p_jpeg_open(struct file *file) | |
284 | { | |
285 | struct s5p_jpeg *jpeg = video_drvdata(file); | |
286 | struct video_device *vfd = video_devdata(file); | |
287 | struct s5p_jpeg_ctx *ctx; | |
288 | struct s5p_jpeg_fmt *out_fmt; | |
275de24d | 289 | int ret = 0; |
bb677f3a AP |
290 | |
291 | ctx = kzalloc(sizeof *ctx, GFP_KERNEL); | |
292 | if (!ctx) | |
293 | return -ENOMEM; | |
294 | ||
275de24d | 295 | v4l2_fh_init(&ctx->fh, vfd); |
15f4bc3b SN |
296 | /* Use separate control handler per file handle */ |
297 | ctx->fh.ctrl_handler = &ctx->ctrl_handler; | |
275de24d SN |
298 | file->private_data = &ctx->fh; |
299 | v4l2_fh_add(&ctx->fh); | |
300 | ||
bb677f3a AP |
301 | ctx->jpeg = jpeg; |
302 | if (vfd == jpeg->vfd_encoder) { | |
303 | ctx->mode = S5P_JPEG_ENCODE; | |
304 | out_fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_RGB565); | |
305 | } else { | |
306 | ctx->mode = S5P_JPEG_DECODE; | |
307 | out_fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_JPEG); | |
308 | } | |
309 | ||
15f4bc3b SN |
310 | ret = s5p_jpeg_controls_create(ctx); |
311 | if (ret < 0) | |
312 | goto error; | |
313 | ||
bb677f3a AP |
314 | ctx->m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx, queue_init); |
315 | if (IS_ERR(ctx->m2m_ctx)) { | |
275de24d SN |
316 | ret = PTR_ERR(ctx->m2m_ctx); |
317 | goto error; | |
bb677f3a AP |
318 | } |
319 | ||
320 | ctx->out_q.fmt = out_fmt; | |
321 | ctx->cap_q.fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_YUYV); | |
bb677f3a | 322 | return 0; |
275de24d SN |
323 | |
324 | error: | |
325 | v4l2_fh_del(&ctx->fh); | |
326 | v4l2_fh_exit(&ctx->fh); | |
327 | kfree(ctx); | |
328 | return ret; | |
bb677f3a AP |
329 | } |
330 | ||
331 | static int s5p_jpeg_release(struct file *file) | |
332 | { | |
275de24d | 333 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
bb677f3a AP |
334 | |
335 | v4l2_m2m_ctx_release(ctx->m2m_ctx); | |
15f4bc3b | 336 | v4l2_ctrl_handler_free(&ctx->ctrl_handler); |
275de24d SN |
337 | v4l2_fh_del(&ctx->fh); |
338 | v4l2_fh_exit(&ctx->fh); | |
bb677f3a AP |
339 | kfree(ctx); |
340 | ||
341 | return 0; | |
342 | } | |
343 | ||
344 | static unsigned int s5p_jpeg_poll(struct file *file, | |
345 | struct poll_table_struct *wait) | |
346 | { | |
275de24d | 347 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
bb677f3a AP |
348 | |
349 | return v4l2_m2m_poll(file, ctx->m2m_ctx, wait); | |
350 | } | |
351 | ||
352 | static int s5p_jpeg_mmap(struct file *file, struct vm_area_struct *vma) | |
353 | { | |
275de24d | 354 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
bb677f3a AP |
355 | |
356 | return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma); | |
357 | } | |
358 | ||
359 | static const struct v4l2_file_operations s5p_jpeg_fops = { | |
360 | .owner = THIS_MODULE, | |
361 | .open = s5p_jpeg_open, | |
362 | .release = s5p_jpeg_release, | |
363 | .poll = s5p_jpeg_poll, | |
364 | .unlocked_ioctl = video_ioctl2, | |
365 | .mmap = s5p_jpeg_mmap, | |
366 | }; | |
367 | ||
368 | /* | |
369 | * ============================================================================ | |
370 | * video ioctl operations | |
371 | * ============================================================================ | |
372 | */ | |
373 | ||
374 | static int get_byte(struct s5p_jpeg_buffer *buf) | |
375 | { | |
376 | if (buf->curr >= buf->size) | |
377 | return -1; | |
378 | ||
379 | return ((unsigned char *)buf->data)[buf->curr++]; | |
380 | } | |
381 | ||
382 | static int get_word_be(struct s5p_jpeg_buffer *buf, unsigned int *word) | |
383 | { | |
384 | unsigned int temp; | |
385 | int byte; | |
386 | ||
387 | byte = get_byte(buf); | |
388 | if (byte == -1) | |
389 | return -1; | |
390 | temp = byte << 8; | |
391 | byte = get_byte(buf); | |
392 | if (byte == -1) | |
393 | return -1; | |
394 | *word = (unsigned int)byte | temp; | |
395 | return 0; | |
396 | } | |
397 | ||
398 | static void skip(struct s5p_jpeg_buffer *buf, long len) | |
399 | { | |
400 | if (len <= 0) | |
401 | return; | |
402 | ||
403 | while (len--) | |
404 | get_byte(buf); | |
405 | } | |
406 | ||
407 | static bool s5p_jpeg_parse_hdr(struct s5p_jpeg_q_data *result, | |
408 | unsigned long buffer, unsigned long size) | |
409 | { | |
410 | int c, components, notfound; | |
411 | unsigned int height, width, word; | |
412 | long length; | |
413 | struct s5p_jpeg_buffer jpeg_buffer; | |
414 | ||
415 | jpeg_buffer.size = size; | |
416 | jpeg_buffer.data = buffer; | |
417 | jpeg_buffer.curr = 0; | |
418 | ||
419 | notfound = 1; | |
420 | while (notfound) { | |
421 | c = get_byte(&jpeg_buffer); | |
422 | if (c == -1) | |
423 | break; | |
424 | if (c != 0xff) | |
425 | continue; | |
426 | do | |
427 | c = get_byte(&jpeg_buffer); | |
428 | while (c == 0xff); | |
429 | if (c == -1) | |
430 | break; | |
431 | if (c == 0) | |
432 | continue; | |
433 | length = 0; | |
434 | switch (c) { | |
435 | /* SOF0: baseline JPEG */ | |
436 | case SOF0: | |
437 | if (get_word_be(&jpeg_buffer, &word)) | |
438 | break; | |
439 | if (get_byte(&jpeg_buffer) == -1) | |
440 | break; | |
441 | if (get_word_be(&jpeg_buffer, &height)) | |
442 | break; | |
443 | if (get_word_be(&jpeg_buffer, &width)) | |
444 | break; | |
445 | components = get_byte(&jpeg_buffer); | |
446 | if (components == -1) | |
447 | break; | |
448 | notfound = 0; | |
449 | ||
450 | skip(&jpeg_buffer, components * 3); | |
451 | break; | |
452 | ||
453 | /* skip payload-less markers */ | |
454 | case RST ... RST + 7: | |
455 | case SOI: | |
456 | case EOI: | |
457 | case TEM: | |
458 | break; | |
459 | ||
460 | /* skip uninteresting payload markers */ | |
461 | default: | |
462 | if (get_word_be(&jpeg_buffer, &word)) | |
463 | break; | |
464 | length = (long)word - 2; | |
465 | skip(&jpeg_buffer, length); | |
466 | break; | |
467 | } | |
468 | } | |
469 | result->w = width; | |
470 | result->h = height; | |
471 | result->size = components; | |
472 | return !notfound; | |
473 | } | |
474 | ||
475 | static int s5p_jpeg_querycap(struct file *file, void *priv, | |
476 | struct v4l2_capability *cap) | |
477 | { | |
275de24d | 478 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
479 | |
480 | if (ctx->mode == S5P_JPEG_ENCODE) { | |
481 | strlcpy(cap->driver, S5P_JPEG_M2M_NAME " encoder", | |
482 | sizeof(cap->driver)); | |
483 | strlcpy(cap->card, S5P_JPEG_M2M_NAME " encoder", | |
484 | sizeof(cap->card)); | |
485 | } else { | |
486 | strlcpy(cap->driver, S5P_JPEG_M2M_NAME " decoder", | |
487 | sizeof(cap->driver)); | |
488 | strlcpy(cap->card, S5P_JPEG_M2M_NAME " decoder", | |
489 | sizeof(cap->card)); | |
490 | } | |
491 | cap->bus_info[0] = 0; | |
492 | cap->capabilities = V4L2_CAP_STREAMING | | |
493 | V4L2_CAP_VIDEO_CAPTURE | | |
494 | V4L2_CAP_VIDEO_OUTPUT; | |
495 | return 0; | |
496 | } | |
497 | ||
498 | static int enum_fmt(struct s5p_jpeg_fmt *formats, int n, | |
499 | struct v4l2_fmtdesc *f, u32 type) | |
500 | { | |
501 | int i, num = 0; | |
502 | ||
503 | for (i = 0; i < n; ++i) { | |
504 | if (formats[i].types & type) { | |
505 | /* index-th format of type type found ? */ | |
506 | if (num == f->index) | |
507 | break; | |
508 | /* Correct type but haven't reached our index yet, | |
509 | * just increment per-type index */ | |
510 | ++num; | |
511 | } | |
512 | } | |
513 | ||
514 | /* Format not found */ | |
515 | if (i >= n) | |
516 | return -EINVAL; | |
517 | ||
518 | strlcpy(f->description, formats[i].name, sizeof(f->description)); | |
519 | f->pixelformat = formats[i].fourcc; | |
520 | ||
521 | return 0; | |
522 | } | |
523 | ||
524 | static int s5p_jpeg_enum_fmt_vid_cap(struct file *file, void *priv, | |
525 | struct v4l2_fmtdesc *f) | |
526 | { | |
275de24d | 527 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
528 | |
529 | if (ctx->mode == S5P_JPEG_ENCODE) | |
530 | return enum_fmt(formats_enc, NUM_FORMATS_ENC, f, | |
531 | MEM2MEM_CAPTURE); | |
532 | ||
533 | return enum_fmt(formats_dec, NUM_FORMATS_DEC, f, MEM2MEM_CAPTURE); | |
534 | } | |
535 | ||
536 | static int s5p_jpeg_enum_fmt_vid_out(struct file *file, void *priv, | |
537 | struct v4l2_fmtdesc *f) | |
538 | { | |
275de24d | 539 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
540 | |
541 | if (ctx->mode == S5P_JPEG_ENCODE) | |
542 | return enum_fmt(formats_enc, NUM_FORMATS_ENC, f, | |
543 | MEM2MEM_OUTPUT); | |
544 | ||
545 | return enum_fmt(formats_dec, NUM_FORMATS_DEC, f, MEM2MEM_OUTPUT); | |
546 | } | |
547 | ||
548 | static struct s5p_jpeg_q_data *get_q_data(struct s5p_jpeg_ctx *ctx, | |
549 | enum v4l2_buf_type type) | |
550 | { | |
551 | if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
552 | return &ctx->out_q; | |
553 | if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
554 | return &ctx->cap_q; | |
555 | ||
556 | return NULL; | |
557 | } | |
558 | ||
559 | static int s5p_jpeg_g_fmt(struct file *file, void *priv, struct v4l2_format *f) | |
560 | { | |
561 | struct vb2_queue *vq; | |
562 | struct s5p_jpeg_q_data *q_data = NULL; | |
563 | struct v4l2_pix_format *pix = &f->fmt.pix; | |
275de24d | 564 | struct s5p_jpeg_ctx *ct = fh_to_ctx(priv); |
bb677f3a AP |
565 | |
566 | vq = v4l2_m2m_get_vq(ct->m2m_ctx, f->type); | |
567 | if (!vq) | |
568 | return -EINVAL; | |
569 | ||
570 | if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && | |
571 | ct->mode == S5P_JPEG_DECODE && !ct->hdr_parsed) | |
572 | return -EINVAL; | |
573 | q_data = get_q_data(ct, f->type); | |
574 | BUG_ON(q_data == NULL); | |
575 | ||
576 | pix->width = q_data->w; | |
577 | pix->height = q_data->h; | |
578 | pix->field = V4L2_FIELD_NONE; | |
579 | pix->pixelformat = q_data->fmt->fourcc; | |
580 | pix->bytesperline = 0; | |
581 | if (q_data->fmt->fourcc != V4L2_PIX_FMT_JPEG) { | |
582 | u32 bpl = q_data->w; | |
583 | if (q_data->fmt->colplanes == 1) | |
584 | bpl = (bpl * q_data->fmt->depth) >> 3; | |
585 | pix->bytesperline = bpl; | |
586 | } | |
587 | pix->sizeimage = q_data->size; | |
588 | ||
589 | return 0; | |
590 | } | |
591 | ||
592 | static struct s5p_jpeg_fmt *s5p_jpeg_find_format(unsigned int mode, | |
593 | u32 pixelformat) | |
594 | { | |
595 | unsigned int k; | |
596 | struct s5p_jpeg_fmt *formats; | |
597 | int n; | |
598 | ||
599 | if (mode == S5P_JPEG_ENCODE) { | |
600 | formats = formats_enc; | |
601 | n = NUM_FORMATS_ENC; | |
602 | } else { | |
603 | formats = formats_dec; | |
604 | n = NUM_FORMATS_DEC; | |
605 | } | |
606 | ||
607 | for (k = 0; k < n; k++) { | |
608 | struct s5p_jpeg_fmt *fmt = &formats[k]; | |
609 | if (fmt->fourcc == pixelformat) | |
610 | return fmt; | |
611 | } | |
612 | ||
613 | return NULL; | |
614 | ||
615 | } | |
616 | ||
617 | static void jpeg_bound_align_image(u32 *w, unsigned int wmin, unsigned int wmax, | |
618 | unsigned int walign, | |
619 | u32 *h, unsigned int hmin, unsigned int hmax, | |
620 | unsigned int halign) | |
621 | { | |
622 | int width, height, w_step, h_step; | |
623 | ||
624 | width = *w; | |
625 | height = *h; | |
626 | ||
627 | w_step = 1 << walign; | |
628 | h_step = 1 << halign; | |
629 | v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0); | |
630 | ||
631 | if (*w < width && (*w + w_step) < wmax) | |
632 | *w += w_step; | |
633 | if (*h < height && (*h + h_step) < hmax) | |
634 | *h += h_step; | |
635 | ||
636 | } | |
637 | ||
638 | static int vidioc_try_fmt(struct v4l2_format *f, struct s5p_jpeg_fmt *fmt, | |
639 | struct s5p_jpeg_ctx *ctx, int q_type) | |
640 | { | |
641 | struct v4l2_pix_format *pix = &f->fmt.pix; | |
642 | ||
643 | if (pix->field == V4L2_FIELD_ANY) | |
644 | pix->field = V4L2_FIELD_NONE; | |
645 | else if (pix->field != V4L2_FIELD_NONE) | |
646 | return -EINVAL; | |
647 | ||
648 | /* V4L2 specification suggests the driver corrects the format struct | |
649 | * if any of the dimensions is unsupported */ | |
650 | if (q_type == MEM2MEM_OUTPUT) | |
651 | jpeg_bound_align_image(&pix->width, S5P_JPEG_MIN_WIDTH, | |
652 | S5P_JPEG_MAX_WIDTH, 0, | |
653 | &pix->height, S5P_JPEG_MIN_HEIGHT, | |
654 | S5P_JPEG_MAX_HEIGHT, 0); | |
655 | else | |
656 | jpeg_bound_align_image(&pix->width, S5P_JPEG_MIN_WIDTH, | |
657 | S5P_JPEG_MAX_WIDTH, fmt->h_align, | |
658 | &pix->height, S5P_JPEG_MIN_HEIGHT, | |
659 | S5P_JPEG_MAX_HEIGHT, fmt->v_align); | |
660 | ||
661 | if (fmt->fourcc == V4L2_PIX_FMT_JPEG) { | |
662 | if (pix->sizeimage <= 0) | |
663 | pix->sizeimage = PAGE_SIZE; | |
664 | pix->bytesperline = 0; | |
665 | } else { | |
666 | u32 bpl = pix->bytesperline; | |
667 | ||
668 | if (fmt->colplanes > 1 && bpl < pix->width) | |
669 | bpl = pix->width; /* planar */ | |
670 | ||
671 | if (fmt->colplanes == 1 && /* packed */ | |
672 | (bpl << 3) * fmt->depth < pix->width) | |
673 | bpl = (pix->width * fmt->depth) >> 3; | |
674 | ||
675 | pix->bytesperline = bpl; | |
676 | pix->sizeimage = (pix->width * pix->height * fmt->depth) >> 3; | |
677 | } | |
678 | ||
679 | return 0; | |
680 | } | |
681 | ||
682 | static int s5p_jpeg_try_fmt_vid_cap(struct file *file, void *priv, | |
683 | struct v4l2_format *f) | |
684 | { | |
275de24d | 685 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a | 686 | struct s5p_jpeg_fmt *fmt; |
bb677f3a AP |
687 | |
688 | fmt = s5p_jpeg_find_format(ctx->mode, f->fmt.pix.pixelformat); | |
689 | if (!fmt || !(fmt->types & MEM2MEM_CAPTURE)) { | |
690 | v4l2_err(&ctx->jpeg->v4l2_dev, | |
691 | "Fourcc format (0x%08x) invalid.\n", | |
692 | f->fmt.pix.pixelformat); | |
693 | return -EINVAL; | |
694 | } | |
695 | ||
696 | return vidioc_try_fmt(f, fmt, ctx, MEM2MEM_CAPTURE); | |
697 | } | |
698 | ||
699 | static int s5p_jpeg_try_fmt_vid_out(struct file *file, void *priv, | |
700 | struct v4l2_format *f) | |
701 | { | |
275de24d | 702 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a | 703 | struct s5p_jpeg_fmt *fmt; |
bb677f3a AP |
704 | |
705 | fmt = s5p_jpeg_find_format(ctx->mode, f->fmt.pix.pixelformat); | |
706 | if (!fmt || !(fmt->types & MEM2MEM_OUTPUT)) { | |
707 | v4l2_err(&ctx->jpeg->v4l2_dev, | |
708 | "Fourcc format (0x%08x) invalid.\n", | |
709 | f->fmt.pix.pixelformat); | |
710 | return -EINVAL; | |
711 | } | |
712 | ||
713 | return vidioc_try_fmt(f, fmt, ctx, MEM2MEM_OUTPUT); | |
714 | } | |
715 | ||
716 | static int s5p_jpeg_s_fmt(struct s5p_jpeg_ctx *ct, struct v4l2_format *f) | |
717 | { | |
718 | struct vb2_queue *vq; | |
719 | struct s5p_jpeg_q_data *q_data = NULL; | |
720 | struct v4l2_pix_format *pix = &f->fmt.pix; | |
721 | ||
722 | vq = v4l2_m2m_get_vq(ct->m2m_ctx, f->type); | |
723 | if (!vq) | |
724 | return -EINVAL; | |
725 | ||
726 | q_data = get_q_data(ct, f->type); | |
727 | BUG_ON(q_data == NULL); | |
728 | ||
729 | if (vb2_is_busy(vq)) { | |
730 | v4l2_err(&ct->jpeg->v4l2_dev, "%s queue busy\n", __func__); | |
731 | return -EBUSY; | |
732 | } | |
733 | ||
734 | q_data->fmt = s5p_jpeg_find_format(ct->mode, pix->pixelformat); | |
735 | q_data->w = pix->width; | |
736 | q_data->h = pix->height; | |
737 | if (q_data->fmt->fourcc != V4L2_PIX_FMT_JPEG) | |
738 | q_data->size = q_data->w * q_data->h * q_data->fmt->depth >> 3; | |
739 | else | |
740 | q_data->size = pix->sizeimage; | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
745 | static int s5p_jpeg_s_fmt_vid_cap(struct file *file, void *priv, | |
746 | struct v4l2_format *f) | |
747 | { | |
748 | int ret; | |
749 | ||
750 | ret = s5p_jpeg_try_fmt_vid_cap(file, priv, f); | |
751 | if (ret) | |
752 | return ret; | |
753 | ||
275de24d | 754 | return s5p_jpeg_s_fmt(fh_to_ctx(priv), f); |
bb677f3a AP |
755 | } |
756 | ||
757 | static int s5p_jpeg_s_fmt_vid_out(struct file *file, void *priv, | |
758 | struct v4l2_format *f) | |
759 | { | |
760 | int ret; | |
761 | ||
762 | ret = s5p_jpeg_try_fmt_vid_out(file, priv, f); | |
763 | if (ret) | |
764 | return ret; | |
765 | ||
275de24d | 766 | return s5p_jpeg_s_fmt(fh_to_ctx(priv), f); |
bb677f3a AP |
767 | } |
768 | ||
769 | static int s5p_jpeg_reqbufs(struct file *file, void *priv, | |
770 | struct v4l2_requestbuffers *reqbufs) | |
771 | { | |
275de24d | 772 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
773 | |
774 | return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs); | |
775 | } | |
776 | ||
777 | static int s5p_jpeg_querybuf(struct file *file, void *priv, | |
778 | struct v4l2_buffer *buf) | |
779 | { | |
275de24d | 780 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
781 | |
782 | return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf); | |
783 | } | |
784 | ||
785 | static int s5p_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) | |
786 | { | |
275de24d | 787 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
788 | |
789 | return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf); | |
790 | } | |
791 | ||
792 | static int s5p_jpeg_dqbuf(struct file *file, void *priv, | |
793 | struct v4l2_buffer *buf) | |
794 | { | |
275de24d | 795 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
796 | |
797 | return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf); | |
798 | } | |
799 | ||
800 | static int s5p_jpeg_streamon(struct file *file, void *priv, | |
801 | enum v4l2_buf_type type) | |
802 | { | |
275de24d | 803 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
804 | |
805 | return v4l2_m2m_streamon(file, ctx->m2m_ctx, type); | |
806 | } | |
807 | ||
808 | static int s5p_jpeg_streamoff(struct file *file, void *priv, | |
809 | enum v4l2_buf_type type) | |
810 | { | |
275de24d | 811 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
812 | |
813 | return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type); | |
814 | } | |
815 | ||
9f3bd320 | 816 | static int s5p_jpeg_g_selection(struct file *file, void *priv, |
bb677f3a AP |
817 | struct v4l2_selection *s) |
818 | { | |
275de24d | 819 | struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
bb677f3a AP |
820 | |
821 | if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && | |
822 | s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
823 | return -EINVAL; | |
824 | ||
825 | /* For JPEG blob active == default == bounds */ | |
826 | switch (s->target) { | |
827 | case V4L2_SEL_TGT_CROP_ACTIVE: | |
828 | case V4L2_SEL_TGT_CROP_BOUNDS: | |
829 | case V4L2_SEL_TGT_CROP_DEFAULT: | |
830 | case V4L2_SEL_TGT_COMPOSE_ACTIVE: | |
831 | case V4L2_SEL_TGT_COMPOSE_DEFAULT: | |
832 | s->r.width = ctx->out_q.w; | |
833 | s->r.height = ctx->out_q.h; | |
834 | break; | |
835 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: | |
836 | case V4L2_SEL_TGT_COMPOSE_PADDED: | |
837 | s->r.width = ctx->cap_q.w; | |
838 | s->r.height = ctx->cap_q.h; | |
839 | break; | |
840 | default: | |
841 | return -EINVAL; | |
842 | } | |
843 | s->r.left = 0; | |
844 | s->r.top = 0; | |
845 | return 0; | |
846 | } | |
847 | ||
15f4bc3b SN |
848 | /* |
849 | * V4L2 controls | |
850 | */ | |
851 | ||
852 | static int s5p_jpeg_g_volatile_ctrl(struct v4l2_ctrl *ctrl) | |
bb677f3a | 853 | { |
15f4bc3b SN |
854 | struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); |
855 | struct s5p_jpeg *jpeg = ctx->jpeg; | |
856 | unsigned long flags; | |
bb677f3a | 857 | |
15f4bc3b SN |
858 | switch (ctrl->id) { |
859 | case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: | |
860 | spin_lock_irqsave(&jpeg->slock, flags); | |
bb677f3a | 861 | |
15f4bc3b SN |
862 | WARN_ON(ctx->subsampling > S5P_SUBSAMPLING_MODE_GRAY); |
863 | if (ctx->subsampling > 2) | |
864 | ctrl->val = V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY; | |
865 | else | |
866 | ctrl->val = ctx->subsampling; | |
867 | spin_unlock_irqrestore(&jpeg->slock, flags); | |
868 | break; | |
869 | } | |
bb677f3a AP |
870 | |
871 | return 0; | |
872 | } | |
873 | ||
15f4bc3b | 874 | static int s5p_jpeg_s_ctrl(struct v4l2_ctrl *ctrl) |
bb677f3a | 875 | { |
15f4bc3b SN |
876 | struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); |
877 | unsigned long flags; | |
bb677f3a | 878 | |
15f4bc3b | 879 | spin_lock_irqsave(&ctx->jpeg->slock, flags); |
bb677f3a | 880 | |
15f4bc3b SN |
881 | switch (ctrl->id) { |
882 | case V4L2_CID_JPEG_COMPRESSION_QUALITY: | |
883 | ctx->compr_quality = S5P_JPEG_COMPR_QUAL_WORST - ctrl->val; | |
884 | break; | |
885 | case V4L2_CID_JPEG_RESTART_INTERVAL: | |
886 | ctx->restart_interval = ctrl->val; | |
887 | break; | |
888 | case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: | |
889 | ctx->subsampling = ctrl->val; | |
890 | break; | |
891 | } | |
892 | ||
893 | spin_unlock_irqrestore(&ctx->jpeg->slock, flags); | |
894 | return 0; | |
895 | } | |
896 | ||
897 | static const struct v4l2_ctrl_ops s5p_jpeg_ctrl_ops = { | |
898 | .g_volatile_ctrl = s5p_jpeg_g_volatile_ctrl, | |
899 | .s_ctrl = s5p_jpeg_s_ctrl, | |
900 | }; | |
901 | ||
902 | static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx) | |
903 | { | |
904 | unsigned int mask = ~0x27; /* 444, 422, 420, GRAY */ | |
905 | struct v4l2_ctrl *ctrl; | |
906 | ||
907 | v4l2_ctrl_handler_init(&ctx->ctrl_handler, 3); | |
bb677f3a | 908 | |
15f4bc3b SN |
909 | if (ctx->mode == S5P_JPEG_ENCODE) { |
910 | v4l2_ctrl_new_std(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, | |
911 | V4L2_CID_JPEG_COMPRESSION_QUALITY, | |
912 | 0, 3, 1, 3); | |
913 | ||
914 | v4l2_ctrl_new_std(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, | |
915 | V4L2_CID_JPEG_RESTART_INTERVAL, | |
916 | 0, 3, 0xffff, 0); | |
917 | mask = ~0x06; /* 422, 420 */ | |
918 | } | |
919 | ||
920 | ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, | |
921 | V4L2_CID_JPEG_CHROMA_SUBSAMPLING, | |
922 | V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY, mask, | |
923 | V4L2_JPEG_CHROMA_SUBSAMPLING_422); | |
bb677f3a | 924 | |
15f4bc3b SN |
925 | if (ctx->ctrl_handler.error) |
926 | return ctx->ctrl_handler.error; | |
927 | ||
928 | if (ctx->mode == S5P_JPEG_DECODE) | |
929 | ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE | | |
930 | V4L2_CTRL_FLAG_READ_ONLY; | |
bb677f3a AP |
931 | return 0; |
932 | } | |
933 | ||
934 | static const struct v4l2_ioctl_ops s5p_jpeg_ioctl_ops = { | |
935 | .vidioc_querycap = s5p_jpeg_querycap, | |
936 | ||
937 | .vidioc_enum_fmt_vid_cap = s5p_jpeg_enum_fmt_vid_cap, | |
938 | .vidioc_enum_fmt_vid_out = s5p_jpeg_enum_fmt_vid_out, | |
939 | ||
940 | .vidioc_g_fmt_vid_cap = s5p_jpeg_g_fmt, | |
941 | .vidioc_g_fmt_vid_out = s5p_jpeg_g_fmt, | |
942 | ||
943 | .vidioc_try_fmt_vid_cap = s5p_jpeg_try_fmt_vid_cap, | |
944 | .vidioc_try_fmt_vid_out = s5p_jpeg_try_fmt_vid_out, | |
945 | ||
946 | .vidioc_s_fmt_vid_cap = s5p_jpeg_s_fmt_vid_cap, | |
947 | .vidioc_s_fmt_vid_out = s5p_jpeg_s_fmt_vid_out, | |
948 | ||
949 | .vidioc_reqbufs = s5p_jpeg_reqbufs, | |
950 | .vidioc_querybuf = s5p_jpeg_querybuf, | |
951 | ||
952 | .vidioc_qbuf = s5p_jpeg_qbuf, | |
953 | .vidioc_dqbuf = s5p_jpeg_dqbuf, | |
954 | ||
955 | .vidioc_streamon = s5p_jpeg_streamon, | |
956 | .vidioc_streamoff = s5p_jpeg_streamoff, | |
957 | ||
958 | .vidioc_g_selection = s5p_jpeg_g_selection, | |
bb677f3a AP |
959 | }; |
960 | ||
961 | /* | |
962 | * ============================================================================ | |
963 | * mem2mem callbacks | |
964 | * ============================================================================ | |
965 | */ | |
966 | ||
967 | static void s5p_jpeg_device_run(void *priv) | |
968 | { | |
969 | struct s5p_jpeg_ctx *ctx = priv; | |
970 | struct s5p_jpeg *jpeg = ctx->jpeg; | |
971 | struct vb2_buffer *src_buf, *dst_buf; | |
972 | unsigned long src_addr, dst_addr; | |
973 | ||
974 | src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx); | |
975 | dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); | |
976 | src_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0); | |
977 | dst_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0); | |
978 | ||
979 | jpeg_reset(jpeg->regs); | |
980 | jpeg_poweron(jpeg->regs); | |
981 | jpeg_proc_mode(jpeg->regs, ctx->mode); | |
982 | if (ctx->mode == S5P_JPEG_ENCODE) { | |
983 | if (ctx->out_q.fmt->fourcc == V4L2_PIX_FMT_RGB565) | |
984 | jpeg_input_raw_mode(jpeg->regs, S5P_JPEG_RAW_IN_565); | |
985 | else | |
986 | jpeg_input_raw_mode(jpeg->regs, S5P_JPEG_RAW_IN_422); | |
15f4bc3b SN |
987 | jpeg_subsampling_mode(jpeg->regs, ctx->subsampling); |
988 | jpeg_dri(jpeg->regs, ctx->restart_interval); | |
bb677f3a AP |
989 | jpeg_x(jpeg->regs, ctx->out_q.w); |
990 | jpeg_y(jpeg->regs, ctx->out_q.h); | |
991 | jpeg_imgadr(jpeg->regs, src_addr); | |
992 | jpeg_jpgadr(jpeg->regs, dst_addr); | |
993 | ||
994 | /* ultimately comes from sizeimage from userspace */ | |
995 | jpeg_enc_stream_int(jpeg->regs, ctx->cap_q.size); | |
996 | ||
997 | /* JPEG RGB to YCbCr conversion matrix */ | |
998 | jpeg_coef(jpeg->regs, 1, 1, S5P_JPEG_COEF11); | |
999 | jpeg_coef(jpeg->regs, 1, 2, S5P_JPEG_COEF12); | |
1000 | jpeg_coef(jpeg->regs, 1, 3, S5P_JPEG_COEF13); | |
1001 | jpeg_coef(jpeg->regs, 2, 1, S5P_JPEG_COEF21); | |
1002 | jpeg_coef(jpeg->regs, 2, 2, S5P_JPEG_COEF22); | |
1003 | jpeg_coef(jpeg->regs, 2, 3, S5P_JPEG_COEF23); | |
1004 | jpeg_coef(jpeg->regs, 3, 1, S5P_JPEG_COEF31); | |
1005 | jpeg_coef(jpeg->regs, 3, 2, S5P_JPEG_COEF32); | |
1006 | jpeg_coef(jpeg->regs, 3, 3, S5P_JPEG_COEF33); | |
1007 | ||
1008 | /* | |
1009 | * JPEG IP allows storing 4 quantization tables | |
1010 | * We fill table 0 for luma and table 1 for chroma | |
1011 | */ | |
1012 | jpeg_set_qtbl_lum(jpeg->regs, ctx->compr_quality); | |
1013 | jpeg_set_qtbl_chr(jpeg->regs, ctx->compr_quality); | |
1014 | /* use table 0 for Y */ | |
1015 | jpeg_qtbl(jpeg->regs, 1, 0); | |
1016 | /* use table 1 for Cb and Cr*/ | |
1017 | jpeg_qtbl(jpeg->regs, 2, 1); | |
1018 | jpeg_qtbl(jpeg->regs, 3, 1); | |
1019 | ||
1020 | /* Y, Cb, Cr use Huffman table 0 */ | |
1021 | jpeg_htbl_ac(jpeg->regs, 1); | |
1022 | jpeg_htbl_dc(jpeg->regs, 1); | |
1023 | jpeg_htbl_ac(jpeg->regs, 2); | |
1024 | jpeg_htbl_dc(jpeg->regs, 2); | |
1025 | jpeg_htbl_ac(jpeg->regs, 3); | |
1026 | jpeg_htbl_dc(jpeg->regs, 3); | |
fb6f8c02 | 1027 | } else { /* S5P_JPEG_DECODE */ |
bb677f3a AP |
1028 | jpeg_rst_int_enable(jpeg->regs, true); |
1029 | jpeg_data_num_int_enable(jpeg->regs, true); | |
1030 | jpeg_final_mcu_num_int_enable(jpeg->regs, true); | |
fb6f8c02 AP |
1031 | if (ctx->cap_q.fmt->fourcc == V4L2_PIX_FMT_YUYV) |
1032 | jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_422); | |
1033 | else | |
1034 | jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_420); | |
bb677f3a AP |
1035 | jpeg_jpgadr(jpeg->regs, src_addr); |
1036 | jpeg_imgadr(jpeg->regs, dst_addr); | |
1037 | } | |
15f4bc3b | 1038 | |
bb677f3a AP |
1039 | jpeg_start(jpeg->regs); |
1040 | } | |
1041 | ||
1042 | static int s5p_jpeg_job_ready(void *priv) | |
1043 | { | |
1044 | struct s5p_jpeg_ctx *ctx = priv; | |
1045 | ||
1046 | if (ctx->mode == S5P_JPEG_DECODE) | |
1047 | return ctx->hdr_parsed; | |
1048 | return 1; | |
1049 | } | |
1050 | ||
1051 | static void s5p_jpeg_job_abort(void *priv) | |
1052 | { | |
1053 | } | |
1054 | ||
1055 | static struct v4l2_m2m_ops s5p_jpeg_m2m_ops = { | |
1056 | .device_run = s5p_jpeg_device_run, | |
1057 | .job_ready = s5p_jpeg_job_ready, | |
1058 | .job_abort = s5p_jpeg_job_abort, | |
1059 | }; | |
1060 | ||
1061 | /* | |
1062 | * ============================================================================ | |
1063 | * Queue operations | |
1064 | * ============================================================================ | |
1065 | */ | |
1066 | ||
719c174e MS |
1067 | static int s5p_jpeg_queue_setup(struct vb2_queue *vq, |
1068 | const struct v4l2_format *fmt, | |
1069 | unsigned int *nbuffers, unsigned int *nplanes, | |
1070 | unsigned int sizes[], void *alloc_ctxs[]) | |
bb677f3a AP |
1071 | { |
1072 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq); | |
1073 | struct s5p_jpeg_q_data *q_data = NULL; | |
1074 | unsigned int size, count = *nbuffers; | |
1075 | ||
1076 | q_data = get_q_data(ctx, vq->type); | |
1077 | BUG_ON(q_data == NULL); | |
1078 | ||
1079 | size = q_data->size; | |
1080 | ||
1081 | /* | |
1082 | * header is parsed during decoding and parsed information stored | |
1083 | * in the context so we do not allow another buffer to overwrite it | |
1084 | */ | |
1085 | if (ctx->mode == S5P_JPEG_DECODE) | |
1086 | count = 1; | |
1087 | ||
1088 | *nbuffers = count; | |
1089 | *nplanes = 1; | |
1090 | sizes[0] = size; | |
1091 | alloc_ctxs[0] = ctx->jpeg->alloc_ctx; | |
1092 | ||
1093 | return 0; | |
1094 | } | |
1095 | ||
1096 | static int s5p_jpeg_buf_prepare(struct vb2_buffer *vb) | |
1097 | { | |
1098 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); | |
1099 | struct s5p_jpeg_q_data *q_data = NULL; | |
1100 | ||
1101 | q_data = get_q_data(ctx, vb->vb2_queue->type); | |
1102 | BUG_ON(q_data == NULL); | |
1103 | ||
1104 | if (vb2_plane_size(vb, 0) < q_data->size) { | |
1105 | pr_err("%s data will not fit into plane (%lu < %lu)\n", | |
1106 | __func__, vb2_plane_size(vb, 0), | |
1107 | (long)q_data->size); | |
1108 | return -EINVAL; | |
1109 | } | |
1110 | ||
1111 | vb2_set_plane_payload(vb, 0, q_data->size); | |
1112 | ||
1113 | return 0; | |
1114 | } | |
1115 | ||
1116 | static void s5p_jpeg_buf_queue(struct vb2_buffer *vb) | |
1117 | { | |
1118 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); | |
1119 | ||
1120 | if (ctx->mode == S5P_JPEG_DECODE && | |
1121 | vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { | |
1122 | struct s5p_jpeg_q_data tmp, *q_data; | |
1123 | ctx->hdr_parsed = s5p_jpeg_parse_hdr(&tmp, | |
1124 | (unsigned long)vb2_plane_vaddr(vb, 0), | |
1125 | min((unsigned long)ctx->out_q.size, | |
1126 | vb2_get_plane_payload(vb, 0))); | |
1127 | if (!ctx->hdr_parsed) { | |
1128 | vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); | |
1129 | return; | |
1130 | } | |
1131 | ||
1132 | q_data = &ctx->out_q; | |
1133 | q_data->w = tmp.w; | |
1134 | q_data->h = tmp.h; | |
1135 | ||
1136 | q_data = &ctx->cap_q; | |
1137 | q_data->w = tmp.w; | |
1138 | q_data->h = tmp.h; | |
1139 | ||
1140 | jpeg_bound_align_image(&q_data->w, S5P_JPEG_MIN_WIDTH, | |
1141 | S5P_JPEG_MAX_WIDTH, q_data->fmt->h_align, | |
1142 | &q_data->h, S5P_JPEG_MIN_HEIGHT, | |
1143 | S5P_JPEG_MAX_HEIGHT, q_data->fmt->v_align | |
1144 | ); | |
1145 | q_data->size = q_data->w * q_data->h * q_data->fmt->depth >> 3; | |
1146 | } | |
1147 | if (ctx->m2m_ctx) | |
1148 | v4l2_m2m_buf_queue(ctx->m2m_ctx, vb); | |
1149 | } | |
1150 | ||
1151 | static void s5p_jpeg_wait_prepare(struct vb2_queue *vq) | |
1152 | { | |
1153 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq); | |
1154 | ||
1155 | mutex_unlock(&ctx->jpeg->lock); | |
1156 | } | |
1157 | ||
1158 | static void s5p_jpeg_wait_finish(struct vb2_queue *vq) | |
1159 | { | |
1160 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq); | |
1161 | ||
1162 | mutex_lock(&ctx->jpeg->lock); | |
1163 | } | |
1164 | ||
1165 | static int s5p_jpeg_start_streaming(struct vb2_queue *q, unsigned int count) | |
1166 | { | |
1167 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(q); | |
1168 | int ret; | |
1169 | ||
1170 | ret = pm_runtime_get_sync(ctx->jpeg->dev); | |
1171 | ||
1172 | return ret > 0 ? 0 : ret; | |
1173 | } | |
1174 | ||
1175 | static int s5p_jpeg_stop_streaming(struct vb2_queue *q) | |
1176 | { | |
1177 | struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(q); | |
1178 | ||
1179 | pm_runtime_put(ctx->jpeg->dev); | |
1180 | ||
1181 | return 0; | |
1182 | } | |
1183 | ||
1184 | static struct vb2_ops s5p_jpeg_qops = { | |
1185 | .queue_setup = s5p_jpeg_queue_setup, | |
1186 | .buf_prepare = s5p_jpeg_buf_prepare, | |
1187 | .buf_queue = s5p_jpeg_buf_queue, | |
1188 | .wait_prepare = s5p_jpeg_wait_prepare, | |
1189 | .wait_finish = s5p_jpeg_wait_finish, | |
1190 | .start_streaming = s5p_jpeg_start_streaming, | |
1191 | .stop_streaming = s5p_jpeg_stop_streaming, | |
1192 | }; | |
1193 | ||
1194 | static int queue_init(void *priv, struct vb2_queue *src_vq, | |
1195 | struct vb2_queue *dst_vq) | |
1196 | { | |
1197 | struct s5p_jpeg_ctx *ctx = priv; | |
1198 | int ret; | |
1199 | ||
1200 | memset(src_vq, 0, sizeof(*src_vq)); | |
1201 | src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
1202 | src_vq->io_modes = VB2_MMAP | VB2_USERPTR; | |
1203 | src_vq->drv_priv = ctx; | |
1204 | src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); | |
1205 | src_vq->ops = &s5p_jpeg_qops; | |
1206 | src_vq->mem_ops = &vb2_dma_contig_memops; | |
1207 | ||
1208 | ret = vb2_queue_init(src_vq); | |
1209 | if (ret) | |
1210 | return ret; | |
1211 | ||
1212 | memset(dst_vq, 0, sizeof(*dst_vq)); | |
1213 | dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1214 | dst_vq->io_modes = VB2_MMAP | VB2_USERPTR; | |
1215 | dst_vq->drv_priv = ctx; | |
1216 | dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); | |
1217 | dst_vq->ops = &s5p_jpeg_qops; | |
1218 | dst_vq->mem_ops = &vb2_dma_contig_memops; | |
1219 | ||
1220 | return vb2_queue_init(dst_vq); | |
1221 | } | |
1222 | ||
1223 | /* | |
1224 | * ============================================================================ | |
1225 | * ISR | |
1226 | * ============================================================================ | |
1227 | */ | |
1228 | ||
1229 | static irqreturn_t s5p_jpeg_irq(int irq, void *dev_id) | |
1230 | { | |
1231 | struct s5p_jpeg *jpeg = dev_id; | |
1232 | struct s5p_jpeg_ctx *curr_ctx; | |
1233 | struct vb2_buffer *src_buf, *dst_buf; | |
1234 | unsigned long payload_size = 0; | |
1235 | enum vb2_buffer_state state = VB2_BUF_STATE_DONE; | |
1236 | bool enc_jpeg_too_large = false; | |
1237 | bool timer_elapsed = false; | |
1238 | bool op_completed = false; | |
1239 | ||
15f4bc3b SN |
1240 | spin_lock(&jpeg->slock); |
1241 | ||
bb677f3a AP |
1242 | curr_ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev); |
1243 | ||
1244 | src_buf = v4l2_m2m_src_buf_remove(curr_ctx->m2m_ctx); | |
1245 | dst_buf = v4l2_m2m_dst_buf_remove(curr_ctx->m2m_ctx); | |
1246 | ||
1247 | if (curr_ctx->mode == S5P_JPEG_ENCODE) | |
1248 | enc_jpeg_too_large = jpeg_enc_stream_stat(jpeg->regs); | |
1249 | timer_elapsed = jpeg_timer_stat(jpeg->regs); | |
1250 | op_completed = jpeg_result_stat_ok(jpeg->regs); | |
1251 | if (curr_ctx->mode == S5P_JPEG_DECODE) | |
1252 | op_completed = op_completed && jpeg_stream_stat_ok(jpeg->regs); | |
1253 | ||
1254 | if (enc_jpeg_too_large) { | |
1255 | state = VB2_BUF_STATE_ERROR; | |
1256 | jpeg_clear_enc_stream_stat(jpeg->regs); | |
1257 | } else if (timer_elapsed) { | |
1258 | state = VB2_BUF_STATE_ERROR; | |
1259 | jpeg_clear_timer_stat(jpeg->regs); | |
1260 | } else if (!op_completed) { | |
1261 | state = VB2_BUF_STATE_ERROR; | |
1262 | } else { | |
1263 | payload_size = jpeg_compressed_size(jpeg->regs); | |
1264 | } | |
1265 | ||
1266 | v4l2_m2m_buf_done(src_buf, state); | |
1267 | if (curr_ctx->mode == S5P_JPEG_ENCODE) | |
1268 | vb2_set_plane_payload(dst_buf, 0, payload_size); | |
1269 | v4l2_m2m_buf_done(dst_buf, state); | |
1270 | v4l2_m2m_job_finish(jpeg->m2m_dev, curr_ctx->m2m_ctx); | |
1271 | ||
15f4bc3b SN |
1272 | curr_ctx->subsampling = jpeg_get_subsampling_mode(jpeg->regs); |
1273 | spin_unlock(&jpeg->slock); | |
fb6f8c02 | 1274 | |
bb677f3a AP |
1275 | jpeg_clear_int(jpeg->regs); |
1276 | ||
1277 | return IRQ_HANDLED; | |
1278 | } | |
1279 | ||
1280 | /* | |
1281 | * ============================================================================ | |
1282 | * Driver basic infrastructure | |
1283 | * ============================================================================ | |
1284 | */ | |
1285 | ||
1286 | static int s5p_jpeg_probe(struct platform_device *pdev) | |
1287 | { | |
1288 | struct s5p_jpeg *jpeg; | |
1289 | struct resource *res; | |
1290 | int ret; | |
1291 | ||
1292 | /* JPEG IP abstraction struct */ | |
5b58b954 | 1293 | jpeg = devm_kzalloc(&pdev->dev, sizeof(struct s5p_jpeg), GFP_KERNEL); |
bb677f3a AP |
1294 | if (!jpeg) |
1295 | return -ENOMEM; | |
1296 | ||
1297 | mutex_init(&jpeg->lock); | |
15f4bc3b | 1298 | spin_lock_init(&jpeg->slock); |
bb677f3a AP |
1299 | jpeg->dev = &pdev->dev; |
1300 | ||
1301 | /* memory-mapped registers */ | |
1302 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
bb677f3a | 1303 | |
5b58b954 SK |
1304 | jpeg->regs = devm_request_and_ioremap(&pdev->dev, res); |
1305 | if (jpeg->regs == NULL) { | |
1306 | dev_err(&pdev->dev, "Failed to obtain io memory\n"); | |
1307 | return -ENOENT; | |
bb677f3a AP |
1308 | } |
1309 | ||
bb677f3a AP |
1310 | /* interrupt service routine registration */ |
1311 | jpeg->irq = ret = platform_get_irq(pdev, 0); | |
1312 | if (ret < 0) { | |
1313 | dev_err(&pdev->dev, "cannot find IRQ\n"); | |
5b58b954 | 1314 | return ret; |
bb677f3a AP |
1315 | } |
1316 | ||
5b58b954 SK |
1317 | ret = devm_request_irq(&pdev->dev, jpeg->irq, s5p_jpeg_irq, 0, |
1318 | dev_name(&pdev->dev), jpeg); | |
bb677f3a AP |
1319 | if (ret) { |
1320 | dev_err(&pdev->dev, "cannot claim IRQ %d\n", jpeg->irq); | |
5b58b954 | 1321 | return ret; |
bb677f3a AP |
1322 | } |
1323 | ||
1324 | /* clocks */ | |
1325 | jpeg->clk = clk_get(&pdev->dev, "jpeg"); | |
1326 | if (IS_ERR(jpeg->clk)) { | |
1327 | dev_err(&pdev->dev, "cannot get clock\n"); | |
1328 | ret = PTR_ERR(jpeg->clk); | |
5b58b954 | 1329 | return ret; |
bb677f3a AP |
1330 | } |
1331 | dev_dbg(&pdev->dev, "clock source %p\n", jpeg->clk); | |
1332 | clk_enable(jpeg->clk); | |
1333 | ||
1334 | /* v4l2 device */ | |
1335 | ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev); | |
1336 | if (ret) { | |
1337 | dev_err(&pdev->dev, "Failed to register v4l2 device\n"); | |
1338 | goto clk_get_rollback; | |
1339 | } | |
1340 | ||
1341 | /* mem2mem device */ | |
1342 | jpeg->m2m_dev = v4l2_m2m_init(&s5p_jpeg_m2m_ops); | |
1343 | if (IS_ERR(jpeg->m2m_dev)) { | |
1344 | v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n"); | |
1345 | ret = PTR_ERR(jpeg->m2m_dev); | |
1346 | goto device_register_rollback; | |
1347 | } | |
1348 | ||
1349 | jpeg->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); | |
1350 | if (IS_ERR(jpeg->alloc_ctx)) { | |
1351 | v4l2_err(&jpeg->v4l2_dev, "Failed to init memory allocator\n"); | |
1352 | ret = PTR_ERR(jpeg->alloc_ctx); | |
1353 | goto m2m_init_rollback; | |
1354 | } | |
1355 | ||
1356 | /* JPEG encoder /dev/videoX node */ | |
1357 | jpeg->vfd_encoder = video_device_alloc(); | |
1358 | if (!jpeg->vfd_encoder) { | |
1359 | v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n"); | |
1360 | ret = -ENOMEM; | |
1361 | goto vb2_allocator_rollback; | |
1362 | } | |
1363 | strlcpy(jpeg->vfd_encoder->name, S5P_JPEG_M2M_NAME, | |
1364 | sizeof(jpeg->vfd_encoder->name)); | |
1365 | jpeg->vfd_encoder->fops = &s5p_jpeg_fops; | |
1366 | jpeg->vfd_encoder->ioctl_ops = &s5p_jpeg_ioctl_ops; | |
1367 | jpeg->vfd_encoder->minor = -1; | |
1368 | jpeg->vfd_encoder->release = video_device_release; | |
1369 | jpeg->vfd_encoder->lock = &jpeg->lock; | |
1370 | jpeg->vfd_encoder->v4l2_dev = &jpeg->v4l2_dev; | |
5126f259 HV |
1371 | /* Locking in file operations other than ioctl should be done |
1372 | by the driver, not the V4L2 core. | |
1373 | This driver needs auditing so that this flag can be removed. */ | |
1374 | set_bit(V4L2_FL_LOCK_ALL_FOPS, &jpeg->vfd_encoder->flags); | |
bb677f3a AP |
1375 | |
1376 | ret = video_register_device(jpeg->vfd_encoder, VFL_TYPE_GRABBER, -1); | |
1377 | if (ret) { | |
1378 | v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n"); | |
1379 | goto enc_vdev_alloc_rollback; | |
1380 | } | |
1381 | ||
1382 | video_set_drvdata(jpeg->vfd_encoder, jpeg); | |
1383 | v4l2_info(&jpeg->v4l2_dev, | |
1384 | "encoder device registered as /dev/video%d\n", | |
1385 | jpeg->vfd_encoder->num); | |
1386 | ||
1387 | /* JPEG decoder /dev/videoX node */ | |
1388 | jpeg->vfd_decoder = video_device_alloc(); | |
1389 | if (!jpeg->vfd_decoder) { | |
1390 | v4l2_err(&jpeg->v4l2_dev, "Failed to allocate video device\n"); | |
1391 | ret = -ENOMEM; | |
1392 | goto enc_vdev_register_rollback; | |
1393 | } | |
1394 | strlcpy(jpeg->vfd_decoder->name, S5P_JPEG_M2M_NAME, | |
1395 | sizeof(jpeg->vfd_decoder->name)); | |
1396 | jpeg->vfd_decoder->fops = &s5p_jpeg_fops; | |
1397 | jpeg->vfd_decoder->ioctl_ops = &s5p_jpeg_ioctl_ops; | |
1398 | jpeg->vfd_decoder->minor = -1; | |
1399 | jpeg->vfd_decoder->release = video_device_release; | |
1400 | jpeg->vfd_decoder->lock = &jpeg->lock; | |
1401 | jpeg->vfd_decoder->v4l2_dev = &jpeg->v4l2_dev; | |
5126f259 HV |
1402 | /* Locking in file operations other than ioctl should be done by the driver, |
1403 | not the V4L2 core. | |
1404 | This driver needs auditing so that this flag can be removed. */ | |
1405 | set_bit(V4L2_FL_LOCK_ALL_FOPS, &jpeg->vfd_decoder->flags); | |
bb677f3a AP |
1406 | |
1407 | ret = video_register_device(jpeg->vfd_decoder, VFL_TYPE_GRABBER, -1); | |
1408 | if (ret) { | |
1409 | v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n"); | |
1410 | goto dec_vdev_alloc_rollback; | |
1411 | } | |
1412 | ||
1413 | video_set_drvdata(jpeg->vfd_decoder, jpeg); | |
1414 | v4l2_info(&jpeg->v4l2_dev, | |
1415 | "decoder device registered as /dev/video%d\n", | |
1416 | jpeg->vfd_decoder->num); | |
1417 | ||
1418 | /* final statements & power management */ | |
1419 | platform_set_drvdata(pdev, jpeg); | |
1420 | ||
1421 | pm_runtime_enable(&pdev->dev); | |
1422 | ||
1423 | v4l2_info(&jpeg->v4l2_dev, "Samsung S5P JPEG codec\n"); | |
1424 | ||
1425 | return 0; | |
1426 | ||
1427 | dec_vdev_alloc_rollback: | |
1428 | video_device_release(jpeg->vfd_decoder); | |
1429 | ||
1430 | enc_vdev_register_rollback: | |
1431 | video_unregister_device(jpeg->vfd_encoder); | |
1432 | ||
1433 | enc_vdev_alloc_rollback: | |
1434 | video_device_release(jpeg->vfd_encoder); | |
1435 | ||
1436 | vb2_allocator_rollback: | |
1437 | vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx); | |
1438 | ||
1439 | m2m_init_rollback: | |
1440 | v4l2_m2m_release(jpeg->m2m_dev); | |
1441 | ||
1442 | device_register_rollback: | |
1443 | v4l2_device_unregister(&jpeg->v4l2_dev); | |
1444 | ||
1445 | clk_get_rollback: | |
1446 | clk_disable(jpeg->clk); | |
1447 | clk_put(jpeg->clk); | |
1448 | ||
bb677f3a AP |
1449 | return ret; |
1450 | } | |
1451 | ||
1452 | static int s5p_jpeg_remove(struct platform_device *pdev) | |
1453 | { | |
1454 | struct s5p_jpeg *jpeg = platform_get_drvdata(pdev); | |
1455 | ||
1456 | pm_runtime_disable(jpeg->dev); | |
1457 | ||
1458 | video_unregister_device(jpeg->vfd_decoder); | |
1459 | video_device_release(jpeg->vfd_decoder); | |
1460 | video_unregister_device(jpeg->vfd_encoder); | |
1461 | video_device_release(jpeg->vfd_encoder); | |
1462 | vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx); | |
1463 | v4l2_m2m_release(jpeg->m2m_dev); | |
1464 | v4l2_device_unregister(&jpeg->v4l2_dev); | |
1465 | ||
1466 | clk_disable(jpeg->clk); | |
1467 | clk_put(jpeg->clk); | |
1468 | ||
bb677f3a AP |
1469 | return 0; |
1470 | } | |
1471 | ||
1472 | static int s5p_jpeg_runtime_suspend(struct device *dev) | |
1473 | { | |
1474 | return 0; | |
1475 | } | |
1476 | ||
1477 | static int s5p_jpeg_runtime_resume(struct device *dev) | |
1478 | { | |
1479 | struct s5p_jpeg *jpeg = dev_get_drvdata(dev); | |
1480 | /* | |
1481 | * JPEG IP allows storing two Huffman tables for each component | |
1482 | * We fill table 0 for each component | |
1483 | */ | |
1484 | jpeg_set_hdctbl(jpeg->regs); | |
1485 | jpeg_set_hdctblg(jpeg->regs); | |
1486 | jpeg_set_hactbl(jpeg->regs); | |
1487 | jpeg_set_hactblg(jpeg->regs); | |
1488 | return 0; | |
1489 | } | |
1490 | ||
1491 | static const struct dev_pm_ops s5p_jpeg_pm_ops = { | |
1492 | .runtime_suspend = s5p_jpeg_runtime_suspend, | |
1493 | .runtime_resume = s5p_jpeg_runtime_resume, | |
1494 | }; | |
1495 | ||
1496 | static struct platform_driver s5p_jpeg_driver = { | |
1497 | .probe = s5p_jpeg_probe, | |
1498 | .remove = s5p_jpeg_remove, | |
1499 | .driver = { | |
1500 | .owner = THIS_MODULE, | |
1501 | .name = S5P_JPEG_M2M_NAME, | |
1502 | .pm = &s5p_jpeg_pm_ops, | |
1503 | }, | |
1504 | }; | |
1505 | ||
1506 | static int __init | |
1507 | s5p_jpeg_register(void) | |
1508 | { | |
1509 | int ret; | |
1510 | ||
1511 | pr_info("S5P JPEG V4L2 Driver, (c) 2011 Samsung Electronics\n"); | |
1512 | ||
1513 | ret = platform_driver_register(&s5p_jpeg_driver); | |
1514 | ||
1515 | if (ret) | |
1516 | pr_err("%s: failed to register jpeg driver\n", __func__); | |
1517 | ||
1518 | return ret; | |
1519 | } | |
1520 | ||
1521 | static void __exit | |
1522 | s5p_jpeg_unregister(void) | |
1523 | { | |
1524 | platform_driver_unregister(&s5p_jpeg_driver); | |
1525 | } | |
1526 | ||
1527 | module_init(s5p_jpeg_register); | |
1528 | module_exit(s5p_jpeg_unregister); | |
1529 | ||
1530 | MODULE_AUTHOR("Andrzej Pietrasiewicz <andrzej.p@samsung.com>"); | |
1531 | MODULE_DESCRIPTION("Samsung JPEG codec driver"); | |
1532 | MODULE_LICENSE("GPL"); | |
1533 |