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WIP FPC-III support
[linux/fpc-iii.git] / drivers / media / platform / s5p-jpeg / jpeg-hw-exynos3250.c
blob637a5104d94897f85c5867a64aa6e7c3659a1a71
1 // SPDX-License-Identifier: GPL-2.0-only
2 /* linux/drivers/media/platform/exynos3250-jpeg/jpeg-hw.h
3 *
4 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com
6 *
7 * Author: Jacek Anaszewski <j.anaszewski@samsung.com>
8 */
9
10 #include <linux/io.h>
11 #include <linux/videodev2.h>
12 #include <linux/delay.h>
13
14 #include "jpeg-core.h"
15 #include "jpeg-regs.h"
16 #include "jpeg-hw-exynos3250.h"
17
18 void exynos3250_jpeg_reset(void __iomem *regs)
19 {
20 u32 reg = 1;
21 int count = 1000;
22
23 writel(1, regs + EXYNOS3250_SW_RESET);
24 /* no other way but polling for when JPEG IP becomes operational */
25 while (reg != 0 && --count > 0) {
26 udelay(1);
27 cpu_relax();
28 reg = readl(regs + EXYNOS3250_SW_RESET);
29 }
30
31 reg = 0;
32 count = 1000;
33
34 while (reg != 1 && --count > 0) {
35 writel(1, regs + EXYNOS3250_JPGDRI);
36 udelay(1);
37 cpu_relax();
38 reg = readl(regs + EXYNOS3250_JPGDRI);
39 }
40
41 writel(0, regs + EXYNOS3250_JPGDRI);
42 }
43
44 void exynos3250_jpeg_poweron(void __iomem *regs)
45 {
46 writel(EXYNOS3250_POWER_ON, regs + EXYNOS3250_JPGCLKCON);
47 }
48
49 void exynos3250_jpeg_set_dma_num(void __iomem *regs)
50 {
51 writel(((EXYNOS3250_DMA_MO_COUNT << EXYNOS3250_WDMA_ISSUE_NUM_SHIFT) &
52 EXYNOS3250_WDMA_ISSUE_NUM_MASK) |
53 ((EXYNOS3250_DMA_MO_COUNT << EXYNOS3250_RDMA_ISSUE_NUM_SHIFT) &
54 EXYNOS3250_RDMA_ISSUE_NUM_MASK) |
55 ((EXYNOS3250_DMA_MO_COUNT << EXYNOS3250_ISSUE_GATHER_NUM_SHIFT) &
56 EXYNOS3250_ISSUE_GATHER_NUM_MASK),
57 regs + EXYNOS3250_DMA_ISSUE_NUM);
58 }
59
60 void exynos3250_jpeg_clk_set(void __iomem *base)
61 {
62 u32 reg;
63
64 reg = readl(base + EXYNOS3250_JPGCMOD) & ~EXYNOS3250_HALF_EN_MASK;
65
66 writel(reg | EXYNOS3250_HALF_EN, base + EXYNOS3250_JPGCMOD);
67 }
68
69 void exynos3250_jpeg_input_raw_fmt(void __iomem *regs, unsigned int fmt)
70 {
71 u32 reg;
72
73 reg = readl(regs + EXYNOS3250_JPGCMOD) &
74 EXYNOS3250_MODE_Y16_MASK;
75
76 switch (fmt) {
77 case V4L2_PIX_FMT_RGB32:
78 reg |= EXYNOS3250_MODE_SEL_ARGB8888;
79 break;
80 case V4L2_PIX_FMT_BGR32:
81 reg |= EXYNOS3250_MODE_SEL_ARGB8888 | EXYNOS3250_SRC_SWAP_RGB;
82 break;
83 case V4L2_PIX_FMT_RGB565:
84 reg |= EXYNOS3250_MODE_SEL_RGB565;
85 break;
86 case V4L2_PIX_FMT_RGB565X:
87 reg |= EXYNOS3250_MODE_SEL_RGB565 | EXYNOS3250_SRC_SWAP_RGB;
88 break;
89 case V4L2_PIX_FMT_YUYV:
90 reg |= EXYNOS3250_MODE_SEL_422_1P_LUM_CHR;
91 break;
92 case V4L2_PIX_FMT_YVYU:
93 reg |= EXYNOS3250_MODE_SEL_422_1P_LUM_CHR |
94 EXYNOS3250_SRC_SWAP_UV;
95 break;
96 case V4L2_PIX_FMT_UYVY:
97 reg |= EXYNOS3250_MODE_SEL_422_1P_CHR_LUM;
98 break;
99 case V4L2_PIX_FMT_VYUY:
100 reg |= EXYNOS3250_MODE_SEL_422_1P_CHR_LUM |
101 EXYNOS3250_SRC_SWAP_UV;
102 break;
103 case V4L2_PIX_FMT_NV12:
104 reg |= EXYNOS3250_MODE_SEL_420_2P | EXYNOS3250_SRC_NV12;
105 break;
106 case V4L2_PIX_FMT_NV21:
107 reg |= EXYNOS3250_MODE_SEL_420_2P | EXYNOS3250_SRC_NV21;
108 break;
109 case V4L2_PIX_FMT_YUV420:
110 reg |= EXYNOS3250_MODE_SEL_420_3P;
111 break;
112 default:
113 break;
114
115 }
116
117 writel(reg, regs + EXYNOS3250_JPGCMOD);
118 }
119
120 void exynos3250_jpeg_set_y16(void __iomem *regs, bool y16)
121 {
122 u32 reg;
123
124 reg = readl(regs + EXYNOS3250_JPGCMOD);
125 if (y16)
126 reg |= EXYNOS3250_MODE_Y16;
127 else
128 reg &= ~EXYNOS3250_MODE_Y16_MASK;
129 writel(reg, regs + EXYNOS3250_JPGCMOD);
130 }
131
132 void exynos3250_jpeg_proc_mode(void __iomem *regs, unsigned int mode)
133 {
134 u32 reg, m;
135
136 if (mode == S5P_JPEG_ENCODE)
137 m = EXYNOS3250_PROC_MODE_COMPR;
138 else
139 m = EXYNOS3250_PROC_MODE_DECOMPR;
140 reg = readl(regs + EXYNOS3250_JPGMOD);
141 reg &= ~EXYNOS3250_PROC_MODE_MASK;
142 reg |= m;
143 writel(reg, regs + EXYNOS3250_JPGMOD);
144 }
145
146 void exynos3250_jpeg_subsampling_mode(void __iomem *regs, unsigned int mode)
147 {
148 u32 reg, m = 0;
149
150 switch (mode) {
151 case V4L2_JPEG_CHROMA_SUBSAMPLING_444:
152 m = EXYNOS3250_SUBSAMPLING_MODE_444;
153 break;
154 case V4L2_JPEG_CHROMA_SUBSAMPLING_422:
155 m = EXYNOS3250_SUBSAMPLING_MODE_422;
156 break;
157 case V4L2_JPEG_CHROMA_SUBSAMPLING_420:
158 m = EXYNOS3250_SUBSAMPLING_MODE_420;
159 break;
160 }
161
162 reg = readl(regs + EXYNOS3250_JPGMOD);
163 reg &= ~EXYNOS3250_SUBSAMPLING_MODE_MASK;
164 reg |= m;
165 writel(reg, regs + EXYNOS3250_JPGMOD);
166 }
167
168 unsigned int exynos3250_jpeg_get_subsampling_mode(void __iomem *regs)
169 {
170 return readl(regs + EXYNOS3250_JPGMOD) &
171 EXYNOS3250_SUBSAMPLING_MODE_MASK;
172 }
173
174 void exynos3250_jpeg_dri(void __iomem *regs, unsigned int dri)
175 {
176 u32 reg;
177
178 reg = dri & EXYNOS3250_JPGDRI_MASK;
179 writel(reg, regs + EXYNOS3250_JPGDRI);
180 }
181
182 void exynos3250_jpeg_qtbl(void __iomem *regs, unsigned int t, unsigned int n)
183 {
184 unsigned long reg;
185
186 reg = readl(regs + EXYNOS3250_QHTBL);
187 reg &= ~EXYNOS3250_QT_NUM_MASK(t);
188 reg |= (n << EXYNOS3250_QT_NUM_SHIFT(t)) &
189 EXYNOS3250_QT_NUM_MASK(t);
190 writel(reg, regs + EXYNOS3250_QHTBL);
191 }
192
193 void exynos3250_jpeg_htbl_ac(void __iomem *regs, unsigned int t)
194 {
195 unsigned long reg;
196
197 reg = readl(regs + EXYNOS3250_QHTBL);
198 reg &= ~EXYNOS3250_HT_NUM_AC_MASK(t);
199 /* this driver uses table 0 for all color components */
200 reg |= (0 << EXYNOS3250_HT_NUM_AC_SHIFT(t)) &
201 EXYNOS3250_HT_NUM_AC_MASK(t);
202 writel(reg, regs + EXYNOS3250_QHTBL);
203 }
204
205 void exynos3250_jpeg_htbl_dc(void __iomem *regs, unsigned int t)
206 {
207 unsigned long reg;
208
209 reg = readl(regs + EXYNOS3250_QHTBL);
210 reg &= ~EXYNOS3250_HT_NUM_DC_MASK(t);
211 /* this driver uses table 0 for all color components */
212 reg |= (0 << EXYNOS3250_HT_NUM_DC_SHIFT(t)) &
213 EXYNOS3250_HT_NUM_DC_MASK(t);
214 writel(reg, regs + EXYNOS3250_QHTBL);
215 }
216
217 void exynos3250_jpeg_set_y(void __iomem *regs, unsigned int y)
218 {
219 u32 reg;
220
221 reg = y & EXYNOS3250_JPGY_MASK;
222 writel(reg, regs + EXYNOS3250_JPGY);
223 }
224
225 void exynos3250_jpeg_set_x(void __iomem *regs, unsigned int x)
226 {
227 u32 reg;
228
229 reg = x & EXYNOS3250_JPGX_MASK;
230 writel(reg, regs + EXYNOS3250_JPGX);
231 }
232
233 #if 0 /* Currently unused */
234 unsigned int exynos3250_jpeg_get_y(void __iomem *regs)
235 {
236 return readl(regs + EXYNOS3250_JPGY);
237 }
238
239 unsigned int exynos3250_jpeg_get_x(void __iomem *regs)
240 {
241 return readl(regs + EXYNOS3250_JPGX);
242 }
243 #endif
244
245 void exynos3250_jpeg_interrupts_enable(void __iomem *regs)
246 {
247 u32 reg;
248
249 reg = readl(regs + EXYNOS3250_JPGINTSE);
250 reg |= (EXYNOS3250_JPEG_DONE_EN |
251 EXYNOS3250_WDMA_DONE_EN |
252 EXYNOS3250_RDMA_DONE_EN |
253 EXYNOS3250_ENC_STREAM_INT_EN |
254 EXYNOS3250_CORE_DONE_EN |
255 EXYNOS3250_ERR_INT_EN |
256 EXYNOS3250_HEAD_INT_EN);
257 writel(reg, regs + EXYNOS3250_JPGINTSE);
258 }
259
260 void exynos3250_jpeg_enc_stream_bound(void __iomem *regs, unsigned int size)
261 {
262 u32 reg;
263
264 reg = size & EXYNOS3250_ENC_STREAM_BOUND_MASK;
265 writel(reg, regs + EXYNOS3250_ENC_STREAM_BOUND);
266 }
267
268 void exynos3250_jpeg_output_raw_fmt(void __iomem *regs, unsigned int fmt)
269 {
270 u32 reg;
271
272 switch (fmt) {
273 case V4L2_PIX_FMT_RGB32:
274 reg = EXYNOS3250_OUT_FMT_ARGB8888;
275 break;
276 case V4L2_PIX_FMT_BGR32:
277 reg = EXYNOS3250_OUT_FMT_ARGB8888 | EXYNOS3250_OUT_SWAP_RGB;
278 break;
279 case V4L2_PIX_FMT_RGB565:
280 reg = EXYNOS3250_OUT_FMT_RGB565;
281 break;
282 case V4L2_PIX_FMT_RGB565X:
283 reg = EXYNOS3250_OUT_FMT_RGB565 | EXYNOS3250_OUT_SWAP_RGB;
284 break;
285 case V4L2_PIX_FMT_YUYV:
286 reg = EXYNOS3250_OUT_FMT_422_1P_LUM_CHR;
287 break;
288 case V4L2_PIX_FMT_YVYU:
289 reg = EXYNOS3250_OUT_FMT_422_1P_LUM_CHR |
290 EXYNOS3250_OUT_SWAP_UV;
291 break;
292 case V4L2_PIX_FMT_UYVY:
293 reg = EXYNOS3250_OUT_FMT_422_1P_CHR_LUM;
294 break;
295 case V4L2_PIX_FMT_VYUY:
296 reg = EXYNOS3250_OUT_FMT_422_1P_CHR_LUM |
297 EXYNOS3250_OUT_SWAP_UV;
298 break;
299 case V4L2_PIX_FMT_NV12:
300 reg = EXYNOS3250_OUT_FMT_420_2P | EXYNOS3250_OUT_NV12;
301 break;
302 case V4L2_PIX_FMT_NV21:
303 reg = EXYNOS3250_OUT_FMT_420_2P | EXYNOS3250_OUT_NV21;
304 break;
305 case V4L2_PIX_FMT_YUV420:
306 reg = EXYNOS3250_OUT_FMT_420_3P;
307 break;
308 default:
309 reg = 0;
310 break;
311 }
312
313 writel(reg, regs + EXYNOS3250_OUTFORM);
314 }
315
316 void exynos3250_jpeg_jpgadr(void __iomem *regs, unsigned int addr)
317 {
318 writel(addr, regs + EXYNOS3250_JPG_JPGADR);
319 }
320
321 void exynos3250_jpeg_imgadr(void __iomem *regs, struct s5p_jpeg_addr *img_addr)
322 {
323 writel(img_addr->y, regs + EXYNOS3250_LUMA_BASE);
324 writel(img_addr->cb, regs + EXYNOS3250_CHROMA_BASE);
325 writel(img_addr->cr, regs + EXYNOS3250_CHROMA_CR_BASE);
326 }
327
328 void exynos3250_jpeg_stride(void __iomem *regs, unsigned int img_fmt,
329 unsigned int width)
330 {
331 u32 reg_luma = 0, reg_cr = 0, reg_cb = 0;
332
333 switch (img_fmt) {
334 case V4L2_PIX_FMT_RGB32:
335 reg_luma = 4 * width;
336 break;
337 case V4L2_PIX_FMT_RGB565:
338 case V4L2_PIX_FMT_RGB565X:
339 case V4L2_PIX_FMT_YUYV:
340 case V4L2_PIX_FMT_YVYU:
341 case V4L2_PIX_FMT_UYVY:
342 case V4L2_PIX_FMT_VYUY:
343 reg_luma = 2 * width;
344 break;
345 case V4L2_PIX_FMT_NV12:
346 case V4L2_PIX_FMT_NV21:
347 reg_luma = width;
348 reg_cb = reg_luma;
349 break;
350 case V4L2_PIX_FMT_YUV420:
351 reg_luma = width;
352 reg_cb = reg_cr = reg_luma / 2;
353 break;
354 default:
355 break;
356 }
357
358 writel(reg_luma, regs + EXYNOS3250_LUMA_STRIDE);
359 writel(reg_cb, regs + EXYNOS3250_CHROMA_STRIDE);
360 writel(reg_cr, regs + EXYNOS3250_CHROMA_CR_STRIDE);
361 }
362
363 void exynos3250_jpeg_offset(void __iomem *regs, unsigned int x_offset,
364 unsigned int y_offset)
365 {
366 u32 reg;
367
368 reg = (y_offset << EXYNOS3250_LUMA_YY_OFFSET_SHIFT) &
369 EXYNOS3250_LUMA_YY_OFFSET_MASK;
370 reg |= (x_offset << EXYNOS3250_LUMA_YX_OFFSET_SHIFT) &
371 EXYNOS3250_LUMA_YX_OFFSET_MASK;
372
373 writel(reg, regs + EXYNOS3250_LUMA_XY_OFFSET);
374
375 reg = (y_offset << EXYNOS3250_CHROMA_YY_OFFSET_SHIFT) &
376 EXYNOS3250_CHROMA_YY_OFFSET_MASK;
377 reg |= (x_offset << EXYNOS3250_CHROMA_YX_OFFSET_SHIFT) &
378 EXYNOS3250_CHROMA_YX_OFFSET_MASK;
379
380 writel(reg, regs + EXYNOS3250_CHROMA_XY_OFFSET);
381
382 reg = (y_offset << EXYNOS3250_CHROMA_CR_YY_OFFSET_SHIFT) &
383 EXYNOS3250_CHROMA_CR_YY_OFFSET_MASK;
384 reg |= (x_offset << EXYNOS3250_CHROMA_CR_YX_OFFSET_SHIFT) &
385 EXYNOS3250_CHROMA_CR_YX_OFFSET_MASK;
386
387 writel(reg, regs + EXYNOS3250_CHROMA_CR_XY_OFFSET);
388 }
389
390 void exynos3250_jpeg_coef(void __iomem *base, unsigned int mode)
391 {
392 if (mode == S5P_JPEG_ENCODE) {
393 writel(EXYNOS3250_JPEG_ENC_COEF1,
394 base + EXYNOS3250_JPG_COEF(1));
395 writel(EXYNOS3250_JPEG_ENC_COEF2,
396 base + EXYNOS3250_JPG_COEF(2));
397 writel(EXYNOS3250_JPEG_ENC_COEF3,
398 base + EXYNOS3250_JPG_COEF(3));
399 } else {
400 writel(EXYNOS3250_JPEG_DEC_COEF1,
401 base + EXYNOS3250_JPG_COEF(1));
402 writel(EXYNOS3250_JPEG_DEC_COEF2,
403 base + EXYNOS3250_JPG_COEF(2));
404 writel(EXYNOS3250_JPEG_DEC_COEF3,
405 base + EXYNOS3250_JPG_COEF(3));
406 }
407 }
408
409 void exynos3250_jpeg_start(void __iomem *regs)
410 {
411 writel(1, regs + EXYNOS3250_JSTART);
412 }
413
414 void exynos3250_jpeg_rstart(void __iomem *regs)
415 {
416 writel(1, regs + EXYNOS3250_JRSTART);
417 }
418
419 unsigned int exynos3250_jpeg_get_int_status(void __iomem *regs)
420 {
421 return readl(regs + EXYNOS3250_JPGINTST);
422 }
423
424 void exynos3250_jpeg_clear_int_status(void __iomem *regs,
425 unsigned int value)
426 {
427 writel(value, regs + EXYNOS3250_JPGINTST);
428 }
429
430 unsigned int exynos3250_jpeg_operating(void __iomem *regs)
431 {
432 return readl(regs + S5P_JPGOPR) & EXYNOS3250_JPGOPR_MASK;
433 }
434
435 unsigned int exynos3250_jpeg_compressed_size(void __iomem *regs)
436 {
437 return readl(regs + EXYNOS3250_JPGCNT) & EXYNOS3250_JPGCNT_MASK;
438 }
439
440 void exynos3250_jpeg_dec_stream_size(void __iomem *regs,
441 unsigned int size)
442 {
443 writel(size & EXYNOS3250_DEC_STREAM_MASK,
444 regs + EXYNOS3250_DEC_STREAM_SIZE);
445 }
446
447 void exynos3250_jpeg_dec_scaling_ratio(void __iomem *regs,
448 unsigned int sratio)
449 {
450 switch (sratio) {
451 case 1:
452 default:
453 sratio = EXYNOS3250_DEC_SCALE_FACTOR_8_8;
454 break;
455 case 2:
456 sratio = EXYNOS3250_DEC_SCALE_FACTOR_4_8;
457 break;
458 case 4:
459 sratio = EXYNOS3250_DEC_SCALE_FACTOR_2_8;
460 break;
461 case 8:
462 sratio = EXYNOS3250_DEC_SCALE_FACTOR_1_8;
463 break;
464 }
465
466 writel(sratio & EXYNOS3250_DEC_SCALE_FACTOR_MASK,
467 regs + EXYNOS3250_DEC_SCALING_RATIO);
468 }
469
470 void exynos3250_jpeg_set_timer(void __iomem *regs, unsigned int time_value)
471 {
472 time_value &= EXYNOS3250_TIMER_INIT_MASK;
473
474 writel(EXYNOS3250_TIMER_INT_STAT | time_value,
475 regs + EXYNOS3250_TIMER_SE);
476 }
477
478 unsigned int exynos3250_jpeg_get_timer_status(void __iomem *regs)
479 {
480 return readl(regs + EXYNOS3250_TIMER_ST);
481 }
482
483 void exynos3250_jpeg_clear_timer_status(void __iomem *regs)
484 {
485 writel(EXYNOS3250_TIMER_INT_STAT, regs + EXYNOS3250_TIMER_ST);
486 }
Linux with added FPC-III support