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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / gpu / ipu-v3 / ipu-cpmem.c
bloba1c85d1521f5c8fc9ebca3e83fb9f499f14aee66
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (C) 2012 Mentor Graphics Inc.
4 * Copyright 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved.
5 */
6 #include <linux/types.h>
7 #include <linux/bitrev.h>
8 #include <linux/io.h>
9 #include <linux/sizes.h>
10 #include <drm/drm_fourcc.h>
11 #include "ipu-prv.h"
12
13 struct ipu_cpmem_word {
14 u32 data[5];
15 u32 res[3];
16 };
17
18 struct ipu_ch_param {
19 struct ipu_cpmem_word word[2];
20 };
21
22 struct ipu_cpmem {
23 struct ipu_ch_param __iomem *base;
24 u32 module;
25 spinlock_t lock;
26 int use_count;
27 struct ipu_soc *ipu;
28 };
29
30 #define IPU_CPMEM_WORD(word, ofs, size) ((((word) * 160 + (ofs)) << 8) | (size))
31
32 #define IPU_FIELD_UBO IPU_CPMEM_WORD(0, 46, 22)
33 #define IPU_FIELD_VBO IPU_CPMEM_WORD(0, 68, 22)
34 #define IPU_FIELD_IOX IPU_CPMEM_WORD(0, 90, 4)
35 #define IPU_FIELD_RDRW IPU_CPMEM_WORD(0, 94, 1)
36 #define IPU_FIELD_SO IPU_CPMEM_WORD(0, 113, 1)
37 #define IPU_FIELD_SLY IPU_CPMEM_WORD(1, 102, 14)
38 #define IPU_FIELD_SLUV IPU_CPMEM_WORD(1, 128, 14)
39
40 #define IPU_FIELD_XV IPU_CPMEM_WORD(0, 0, 10)
41 #define IPU_FIELD_YV IPU_CPMEM_WORD(0, 10, 9)
42 #define IPU_FIELD_XB IPU_CPMEM_WORD(0, 19, 13)
43 #define IPU_FIELD_YB IPU_CPMEM_WORD(0, 32, 12)
44 #define IPU_FIELD_NSB_B IPU_CPMEM_WORD(0, 44, 1)
45 #define IPU_FIELD_CF IPU_CPMEM_WORD(0, 45, 1)
46 #define IPU_FIELD_SX IPU_CPMEM_WORD(0, 46, 12)
47 #define IPU_FIELD_SY IPU_CPMEM_WORD(0, 58, 11)
48 #define IPU_FIELD_NS IPU_CPMEM_WORD(0, 69, 10)
49 #define IPU_FIELD_SDX IPU_CPMEM_WORD(0, 79, 7)
50 #define IPU_FIELD_SM IPU_CPMEM_WORD(0, 86, 10)
51 #define IPU_FIELD_SCC IPU_CPMEM_WORD(0, 96, 1)
52 #define IPU_FIELD_SCE IPU_CPMEM_WORD(0, 97, 1)
53 #define IPU_FIELD_SDY IPU_CPMEM_WORD(0, 98, 7)
54 #define IPU_FIELD_SDRX IPU_CPMEM_WORD(0, 105, 1)
55 #define IPU_FIELD_SDRY IPU_CPMEM_WORD(0, 106, 1)
56 #define IPU_FIELD_BPP IPU_CPMEM_WORD(0, 107, 3)
57 #define IPU_FIELD_DEC_SEL IPU_CPMEM_WORD(0, 110, 2)
58 #define IPU_FIELD_DIM IPU_CPMEM_WORD(0, 112, 1)
59 #define IPU_FIELD_BNDM IPU_CPMEM_WORD(0, 114, 3)
60 #define IPU_FIELD_BM IPU_CPMEM_WORD(0, 117, 2)
61 #define IPU_FIELD_ROT IPU_CPMEM_WORD(0, 119, 1)
62 #define IPU_FIELD_ROT_HF_VF IPU_CPMEM_WORD(0, 119, 3)
63 #define IPU_FIELD_HF IPU_CPMEM_WORD(0, 120, 1)
64 #define IPU_FIELD_VF IPU_CPMEM_WORD(0, 121, 1)
65 #define IPU_FIELD_THE IPU_CPMEM_WORD(0, 122, 1)
66 #define IPU_FIELD_CAP IPU_CPMEM_WORD(0, 123, 1)
67 #define IPU_FIELD_CAE IPU_CPMEM_WORD(0, 124, 1)
68 #define IPU_FIELD_FW IPU_CPMEM_WORD(0, 125, 13)
69 #define IPU_FIELD_FH IPU_CPMEM_WORD(0, 138, 12)
70 #define IPU_FIELD_EBA0 IPU_CPMEM_WORD(1, 0, 29)
71 #define IPU_FIELD_EBA1 IPU_CPMEM_WORD(1, 29, 29)
72 #define IPU_FIELD_ILO IPU_CPMEM_WORD(1, 58, 20)
73 #define IPU_FIELD_NPB IPU_CPMEM_WORD(1, 78, 7)
74 #define IPU_FIELD_PFS IPU_CPMEM_WORD(1, 85, 4)
75 #define IPU_FIELD_ALU IPU_CPMEM_WORD(1, 89, 1)
76 #define IPU_FIELD_ALBM IPU_CPMEM_WORD(1, 90, 3)
77 #define IPU_FIELD_ID IPU_CPMEM_WORD(1, 93, 2)
78 #define IPU_FIELD_TH IPU_CPMEM_WORD(1, 95, 7)
79 #define IPU_FIELD_SL IPU_CPMEM_WORD(1, 102, 14)
80 #define IPU_FIELD_WID0 IPU_CPMEM_WORD(1, 116, 3)
81 #define IPU_FIELD_WID1 IPU_CPMEM_WORD(1, 119, 3)
82 #define IPU_FIELD_WID2 IPU_CPMEM_WORD(1, 122, 3)
83 #define IPU_FIELD_WID3 IPU_CPMEM_WORD(1, 125, 3)
84 #define IPU_FIELD_OFS0 IPU_CPMEM_WORD(1, 128, 5)
85 #define IPU_FIELD_OFS1 IPU_CPMEM_WORD(1, 133, 5)
86 #define IPU_FIELD_OFS2 IPU_CPMEM_WORD(1, 138, 5)
87 #define IPU_FIELD_OFS3 IPU_CPMEM_WORD(1, 143, 5)
88 #define IPU_FIELD_SXYS IPU_CPMEM_WORD(1, 148, 1)
89 #define IPU_FIELD_CRE IPU_CPMEM_WORD(1, 149, 1)
90 #define IPU_FIELD_DEC_SEL2 IPU_CPMEM_WORD(1, 150, 1)
91
92 static inline struct ipu_ch_param __iomem *
93 ipu_get_cpmem(struct ipuv3_channel *ch)
94 {
95 struct ipu_cpmem *cpmem = ch->ipu->cpmem_priv;
96
97 return cpmem->base + ch->num;
98 }
99
100 static void ipu_ch_param_write_field(struct ipuv3_channel *ch, u32 wbs, u32 v)
101 {
102 struct ipu_ch_param __iomem *base = ipu_get_cpmem(ch);
103 u32 bit = (wbs >> 8) % 160;
104 u32 size = wbs & 0xff;
105 u32 word = (wbs >> 8) / 160;
106 u32 i = bit / 32;
107 u32 ofs = bit % 32;
108 u32 mask = (1 << size) - 1;
109 u32 val;
110
111 pr_debug("%s %d %d %d\n", __func__, word, bit , size);
112
113 val = readl(&base->word[word].data[i]);
114 val &= ~(mask << ofs);
115 val |= v << ofs;
116 writel(val, &base->word[word].data[i]);
117
118 if ((bit + size - 1) / 32 > i) {
119 val = readl(&base->word[word].data[i + 1]);
120 val &= ~(mask >> (ofs ? (32 - ofs) : 0));
121 val |= v >> (ofs ? (32 - ofs) : 0);
122 writel(val, &base->word[word].data[i + 1]);
123 }
124 }
125
126 static u32 ipu_ch_param_read_field(struct ipuv3_channel *ch, u32 wbs)
127 {
128 struct ipu_ch_param __iomem *base = ipu_get_cpmem(ch);
129 u32 bit = (wbs >> 8) % 160;
130 u32 size = wbs & 0xff;
131 u32 word = (wbs >> 8) / 160;
132 u32 i = bit / 32;
133 u32 ofs = bit % 32;
134 u32 mask = (1 << size) - 1;
135 u32 val = 0;
136
137 pr_debug("%s %d %d %d\n", __func__, word, bit , size);
138
139 val = (readl(&base->word[word].data[i]) >> ofs) & mask;
140
141 if ((bit + size - 1) / 32 > i) {
142 u32 tmp;
143
144 tmp = readl(&base->word[word].data[i + 1]);
145 tmp &= mask >> (ofs ? (32 - ofs) : 0);
146 val |= tmp << (ofs ? (32 - ofs) : 0);
147 }
148
149 return val;
150 }
151
152 /*
153 * The V4L2 spec defines packed RGB formats in memory byte order, which from
154 * point of view of the IPU corresponds to little-endian words with the first
155 * component in the least significant bits.
156 * The DRM pixel formats and IPU internal representation are ordered the other
157 * way around, with the first named component ordered at the most significant
158 * bits. Further, V4L2 formats are not well defined:
159 * https://linuxtv.org/downloads/v4l-dvb-apis/packed-rgb.html
160 * We choose the interpretation which matches GStreamer behavior.
161 */
162 static int v4l2_pix_fmt_to_drm_fourcc(u32 pixelformat)
163 {
164 switch (pixelformat) {
165 case V4L2_PIX_FMT_RGB565:
166 /*
167 * Here we choose the 'corrected' interpretation of RGBP, a
168 * little-endian 16-bit word with the red component at the most
169 * significant bits:
170 * g[2:0]b[4:0] r[4:0]g[5:3] <=> [16:0] R:G:B
171 */
172 return DRM_FORMAT_RGB565;
173 case V4L2_PIX_FMT_BGR24:
174 /* B G R <=> [24:0] R:G:B */
175 return DRM_FORMAT_RGB888;
176 case V4L2_PIX_FMT_RGB24:
177 /* R G B <=> [24:0] B:G:R */
178 return DRM_FORMAT_BGR888;
179 case V4L2_PIX_FMT_BGR32:
180 /* B G R A <=> [32:0] A:B:G:R */
181 return DRM_FORMAT_XRGB8888;
182 case V4L2_PIX_FMT_RGB32:
183 /* R G B A <=> [32:0] A:B:G:R */
184 return DRM_FORMAT_XBGR8888;
185 case V4L2_PIX_FMT_ABGR32:
186 /* B G R A <=> [32:0] A:R:G:B */
187 return DRM_FORMAT_ARGB8888;
188 case V4L2_PIX_FMT_XBGR32:
189 /* B G R X <=> [32:0] X:R:G:B */
190 return DRM_FORMAT_XRGB8888;
191 case V4L2_PIX_FMT_BGRA32:
192 /* A B G R <=> [32:0] R:G:B:A */
193 return DRM_FORMAT_RGBA8888;
194 case V4L2_PIX_FMT_BGRX32:
195 /* X B G R <=> [32:0] R:G:B:X */
196 return DRM_FORMAT_RGBX8888;
197 case V4L2_PIX_FMT_RGBA32:
198 /* R G B A <=> [32:0] A:B:G:R */
199 return DRM_FORMAT_ABGR8888;
200 case V4L2_PIX_FMT_RGBX32:
201 /* R G B X <=> [32:0] X:B:G:R */
202 return DRM_FORMAT_XBGR8888;
203 case V4L2_PIX_FMT_ARGB32:
204 /* A R G B <=> [32:0] B:G:R:A */
205 return DRM_FORMAT_BGRA8888;
206 case V4L2_PIX_FMT_XRGB32:
207 /* X R G B <=> [32:0] B:G:R:X */
208 return DRM_FORMAT_BGRX8888;
209 case V4L2_PIX_FMT_UYVY:
210 return DRM_FORMAT_UYVY;
211 case V4L2_PIX_FMT_YUYV:
212 return DRM_FORMAT_YUYV;
213 case V4L2_PIX_FMT_YUV420:
214 return DRM_FORMAT_YUV420;
215 case V4L2_PIX_FMT_YUV422P:
216 return DRM_FORMAT_YUV422;
217 case V4L2_PIX_FMT_YVU420:
218 return DRM_FORMAT_YVU420;
219 case V4L2_PIX_FMT_NV12:
220 return DRM_FORMAT_NV12;
221 case V4L2_PIX_FMT_NV16:
222 return DRM_FORMAT_NV16;
223 }
224
225 return -EINVAL;
226 }
227
228 void ipu_cpmem_zero(struct ipuv3_channel *ch)
229 {
230 struct ipu_ch_param __iomem *p = ipu_get_cpmem(ch);
231 void __iomem *base = p;
232 int i;
233
234 for (i = 0; i < sizeof(*p) / sizeof(u32); i++)
235 writel(0, base + i * sizeof(u32));
236 }
237 EXPORT_SYMBOL_GPL(ipu_cpmem_zero);
238
239 void ipu_cpmem_set_resolution(struct ipuv3_channel *ch, int xres, int yres)
240 {
241 ipu_ch_param_write_field(ch, IPU_FIELD_FW, xres - 1);
242 ipu_ch_param_write_field(ch, IPU_FIELD_FH, yres - 1);
243 }
244 EXPORT_SYMBOL_GPL(ipu_cpmem_set_resolution);
245
246 void ipu_cpmem_skip_odd_chroma_rows(struct ipuv3_channel *ch)
247 {
248 ipu_ch_param_write_field(ch, IPU_FIELD_RDRW, 1);
249 }
250 EXPORT_SYMBOL_GPL(ipu_cpmem_skip_odd_chroma_rows);
251
252 void ipu_cpmem_set_stride(struct ipuv3_channel *ch, int stride)
253 {
254 ipu_ch_param_write_field(ch, IPU_FIELD_SLY, stride - 1);
255 }
256 EXPORT_SYMBOL_GPL(ipu_cpmem_set_stride);
257
258 void ipu_cpmem_set_high_priority(struct ipuv3_channel *ch)
259 {
260 struct ipu_soc *ipu = ch->ipu;
261 u32 val;
262
263 if (ipu->ipu_type == IPUV3EX)
264 ipu_ch_param_write_field(ch, IPU_FIELD_ID, 1);
265
266 val = ipu_idmac_read(ipu, IDMAC_CHA_PRI(ch->num));
267 val |= 1 << (ch->num % 32);
268 ipu_idmac_write(ipu, val, IDMAC_CHA_PRI(ch->num));
269 };
270 EXPORT_SYMBOL_GPL(ipu_cpmem_set_high_priority);
271
272 void ipu_cpmem_set_buffer(struct ipuv3_channel *ch, int bufnum, dma_addr_t buf)
273 {
274 WARN_ON_ONCE(buf & 0x7);
275
276 if (bufnum)
277 ipu_ch_param_write_field(ch, IPU_FIELD_EBA1, buf >> 3);
278 else
279 ipu_ch_param_write_field(ch, IPU_FIELD_EBA0, buf >> 3);
280 }
281 EXPORT_SYMBOL_GPL(ipu_cpmem_set_buffer);
282
283 void ipu_cpmem_set_uv_offset(struct ipuv3_channel *ch, u32 u_off, u32 v_off)
284 {
285 WARN_ON_ONCE((u_off & 0x7) || (v_off & 0x7));
286
287 ipu_ch_param_write_field(ch, IPU_FIELD_UBO, u_off / 8);
288 ipu_ch_param_write_field(ch, IPU_FIELD_VBO, v_off / 8);
289 }
290 EXPORT_SYMBOL_GPL(ipu_cpmem_set_uv_offset);
291
292 void ipu_cpmem_interlaced_scan(struct ipuv3_channel *ch, int stride,
293 u32 pixelformat)
294 {
295 u32 ilo, sly, sluv;
296
297 if (stride < 0) {
298 stride = -stride;
299 ilo = 0x100000 - (stride / 8);
300 } else {
301 ilo = stride / 8;
302 }
303
304 sly = (stride * 2) - 1;
305
306 switch (pixelformat) {
307 case V4L2_PIX_FMT_YUV420:
308 case V4L2_PIX_FMT_YVU420:
309 sluv = stride / 2 - 1;
310 break;
311 case V4L2_PIX_FMT_NV12:
312 sluv = stride - 1;
313 break;
314 case V4L2_PIX_FMT_YUV422P:
315 sluv = stride - 1;
316 break;
317 case V4L2_PIX_FMT_NV16:
318 sluv = stride * 2 - 1;
319 break;
320 default:
321 sluv = 0;
322 break;
323 }
324
325 ipu_ch_param_write_field(ch, IPU_FIELD_SO, 1);
326 ipu_ch_param_write_field(ch, IPU_FIELD_ILO, ilo);
327 ipu_ch_param_write_field(ch, IPU_FIELD_SLY, sly);
328 if (sluv)
329 ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, sluv);
330 };
331 EXPORT_SYMBOL_GPL(ipu_cpmem_interlaced_scan);
332
333 void ipu_cpmem_set_axi_id(struct ipuv3_channel *ch, u32 id)
334 {
335 id &= 0x3;
336 ipu_ch_param_write_field(ch, IPU_FIELD_ID, id);
337 }
338 EXPORT_SYMBOL_GPL(ipu_cpmem_set_axi_id);
339
340 int ipu_cpmem_get_burstsize(struct ipuv3_channel *ch)
341 {
342 return ipu_ch_param_read_field(ch, IPU_FIELD_NPB) + 1;
343 }
344 EXPORT_SYMBOL_GPL(ipu_cpmem_get_burstsize);
345
346 void ipu_cpmem_set_burstsize(struct ipuv3_channel *ch, int burstsize)
347 {
348 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, burstsize - 1);
349 };
350 EXPORT_SYMBOL_GPL(ipu_cpmem_set_burstsize);
351
352 void ipu_cpmem_set_block_mode(struct ipuv3_channel *ch)
353 {
354 ipu_ch_param_write_field(ch, IPU_FIELD_BM, 1);
355 }
356 EXPORT_SYMBOL_GPL(ipu_cpmem_set_block_mode);
357
358 void ipu_cpmem_set_rotation(struct ipuv3_channel *ch,
359 enum ipu_rotate_mode rot)
360 {
361 u32 temp_rot = bitrev8(rot) >> 5;
362
363 ipu_ch_param_write_field(ch, IPU_FIELD_ROT_HF_VF, temp_rot);
364 }
365 EXPORT_SYMBOL_GPL(ipu_cpmem_set_rotation);
366
367 int ipu_cpmem_set_format_rgb(struct ipuv3_channel *ch,
368 const struct ipu_rgb *rgb)
369 {
370 int bpp = 0, npb = 0, ro, go, bo, to;
371
372 ro = rgb->bits_per_pixel - rgb->red.length - rgb->red.offset;
373 go = rgb->bits_per_pixel - rgb->green.length - rgb->green.offset;
374 bo = rgb->bits_per_pixel - rgb->blue.length - rgb->blue.offset;
375 to = rgb->bits_per_pixel - rgb->transp.length - rgb->transp.offset;
376
377 ipu_ch_param_write_field(ch, IPU_FIELD_WID0, rgb->red.length - 1);
378 ipu_ch_param_write_field(ch, IPU_FIELD_OFS0, ro);
379 ipu_ch_param_write_field(ch, IPU_FIELD_WID1, rgb->green.length - 1);
380 ipu_ch_param_write_field(ch, IPU_FIELD_OFS1, go);
381 ipu_ch_param_write_field(ch, IPU_FIELD_WID2, rgb->blue.length - 1);
382 ipu_ch_param_write_field(ch, IPU_FIELD_OFS2, bo);
383
384 if (rgb->transp.length) {
385 ipu_ch_param_write_field(ch, IPU_FIELD_WID3,
386 rgb->transp.length - 1);
387 ipu_ch_param_write_field(ch, IPU_FIELD_OFS3, to);
388 } else {
389 ipu_ch_param_write_field(ch, IPU_FIELD_WID3, 7);
390 ipu_ch_param_write_field(ch, IPU_FIELD_OFS3,
391 rgb->bits_per_pixel);
392 }
393
394 switch (rgb->bits_per_pixel) {
395 case 32:
396 bpp = 0;
397 npb = 15;
398 break;
399 case 24:
400 bpp = 1;
401 npb = 19;
402 break;
403 case 16:
404 bpp = 3;
405 npb = 31;
406 break;
407 case 8:
408 bpp = 5;
409 npb = 63;
410 break;
411 default:
412 return -EINVAL;
413 }
414 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, bpp);
415 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, npb);
416 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 7); /* rgb mode */
417
418 return 0;
419 }
420 EXPORT_SYMBOL_GPL(ipu_cpmem_set_format_rgb);
421
422 int ipu_cpmem_set_format_passthrough(struct ipuv3_channel *ch, int width)
423 {
424 int bpp = 0, npb = 0;
425
426 switch (width) {
427 case 32:
428 bpp = 0;
429 npb = 15;
430 break;
431 case 24:
432 bpp = 1;
433 npb = 19;
434 break;
435 case 16:
436 bpp = 3;
437 npb = 31;
438 break;
439 case 8:
440 bpp = 5;
441 npb = 63;
442 break;
443 default:
444 return -EINVAL;
445 }
446
447 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, bpp);
448 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, npb);
449 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 6); /* raw mode */
450
451 return 0;
452 }
453 EXPORT_SYMBOL_GPL(ipu_cpmem_set_format_passthrough);
454
455 void ipu_cpmem_set_yuv_interleaved(struct ipuv3_channel *ch, u32 pixel_format)
456 {
457 switch (pixel_format) {
458 case V4L2_PIX_FMT_UYVY:
459 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3); /* bits/pixel */
460 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0xA);/* pix fmt */
461 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);/* burst size */
462 break;
463 case V4L2_PIX_FMT_YUYV:
464 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3); /* bits/pixel */
465 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0x8);/* pix fmt */
466 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);/* burst size */
467 break;
468 }
469 }
470 EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_interleaved);
471
472 void ipu_cpmem_set_yuv_planar_full(struct ipuv3_channel *ch,
473 unsigned int uv_stride,
474 unsigned int u_offset, unsigned int v_offset)
475 {
476 WARN_ON_ONCE((u_offset & 0x7) || (v_offset & 0x7));
477
478 ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, uv_stride - 1);
479 ipu_ch_param_write_field(ch, IPU_FIELD_UBO, u_offset / 8);
480 ipu_ch_param_write_field(ch, IPU_FIELD_VBO, v_offset / 8);
481 }
482 EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar_full);
483
484 static const struct ipu_rgb def_xrgb_32 = {
485 .red = { .offset = 16, .length = 8, },
486 .green = { .offset = 8, .length = 8, },
487 .blue = { .offset = 0, .length = 8, },
488 .transp = { .offset = 24, .length = 8, },
489 .bits_per_pixel = 32,
490 };
491
492 static const struct ipu_rgb def_xbgr_32 = {
493 .red = { .offset = 0, .length = 8, },
494 .green = { .offset = 8, .length = 8, },
495 .blue = { .offset = 16, .length = 8, },
496 .transp = { .offset = 24, .length = 8, },
497 .bits_per_pixel = 32,
498 };
499
500 static const struct ipu_rgb def_rgbx_32 = {
501 .red = { .offset = 24, .length = 8, },
502 .green = { .offset = 16, .length = 8, },
503 .blue = { .offset = 8, .length = 8, },
504 .transp = { .offset = 0, .length = 8, },
505 .bits_per_pixel = 32,
506 };
507
508 static const struct ipu_rgb def_bgrx_32 = {
509 .red = { .offset = 8, .length = 8, },
510 .green = { .offset = 16, .length = 8, },
511 .blue = { .offset = 24, .length = 8, },
512 .transp = { .offset = 0, .length = 8, },
513 .bits_per_pixel = 32,
514 };
515
516 static const struct ipu_rgb def_rgb_24 = {
517 .red = { .offset = 16, .length = 8, },
518 .green = { .offset = 8, .length = 8, },
519 .blue = { .offset = 0, .length = 8, },
520 .transp = { .offset = 0, .length = 0, },
521 .bits_per_pixel = 24,
522 };
523
524 static const struct ipu_rgb def_bgr_24 = {
525 .red = { .offset = 0, .length = 8, },
526 .green = { .offset = 8, .length = 8, },
527 .blue = { .offset = 16, .length = 8, },
528 .transp = { .offset = 0, .length = 0, },
529 .bits_per_pixel = 24,
530 };
531
532 static const struct ipu_rgb def_rgb_16 = {
533 .red = { .offset = 11, .length = 5, },
534 .green = { .offset = 5, .length = 6, },
535 .blue = { .offset = 0, .length = 5, },
536 .transp = { .offset = 0, .length = 0, },
537 .bits_per_pixel = 16,
538 };
539
540 static const struct ipu_rgb def_bgr_16 = {
541 .red = { .offset = 0, .length = 5, },
542 .green = { .offset = 5, .length = 6, },
543 .blue = { .offset = 11, .length = 5, },
544 .transp = { .offset = 0, .length = 0, },
545 .bits_per_pixel = 16,
546 };
547
548 static const struct ipu_rgb def_argb_16 = {
549 .red = { .offset = 10, .length = 5, },
550 .green = { .offset = 5, .length = 5, },
551 .blue = { .offset = 0, .length = 5, },
552 .transp = { .offset = 15, .length = 1, },
553 .bits_per_pixel = 16,
554 };
555
556 static const struct ipu_rgb def_argb_16_4444 = {
557 .red = { .offset = 8, .length = 4, },
558 .green = { .offset = 4, .length = 4, },
559 .blue = { .offset = 0, .length = 4, },
560 .transp = { .offset = 12, .length = 4, },
561 .bits_per_pixel = 16,
562 };
563
564 static const struct ipu_rgb def_abgr_16 = {
565 .red = { .offset = 0, .length = 5, },
566 .green = { .offset = 5, .length = 5, },
567 .blue = { .offset = 10, .length = 5, },
568 .transp = { .offset = 15, .length = 1, },
569 .bits_per_pixel = 16,
570 };
571
572 static const struct ipu_rgb def_rgba_16 = {
573 .red = { .offset = 11, .length = 5, },
574 .green = { .offset = 6, .length = 5, },
575 .blue = { .offset = 1, .length = 5, },
576 .transp = { .offset = 0, .length = 1, },
577 .bits_per_pixel = 16,
578 };
579
580 static const struct ipu_rgb def_bgra_16 = {
581 .red = { .offset = 1, .length = 5, },
582 .green = { .offset = 6, .length = 5, },
583 .blue = { .offset = 11, .length = 5, },
584 .transp = { .offset = 0, .length = 1, },
585 .bits_per_pixel = 16,
586 };
587
588 #define Y_OFFSET(pix, x, y) ((x) + pix->width * (y))
589 #define U_OFFSET(pix, x, y) ((pix->width * pix->height) + \
590 (pix->width * ((y) / 2) / 2) + (x) / 2)
591 #define V_OFFSET(pix, x, y) ((pix->width * pix->height) + \
592 (pix->width * pix->height / 4) + \
593 (pix->width * ((y) / 2) / 2) + (x) / 2)
594 #define U2_OFFSET(pix, x, y) ((pix->width * pix->height) + \
595 (pix->width * (y) / 2) + (x) / 2)
596 #define V2_OFFSET(pix, x, y) ((pix->width * pix->height) + \
597 (pix->width * pix->height / 2) + \
598 (pix->width * (y) / 2) + (x) / 2)
599 #define UV_OFFSET(pix, x, y) ((pix->width * pix->height) + \
600 (pix->width * ((y) / 2)) + (x))
601 #define UV2_OFFSET(pix, x, y) ((pix->width * pix->height) + \
602 (pix->width * y) + (x))
603
604 #define NUM_ALPHA_CHANNELS 7
605
606 /* See Table 37-12. Alpha channels mapping. */
607 static int ipu_channel_albm(int ch_num)
608 {
609 switch (ch_num) {
610 case IPUV3_CHANNEL_G_MEM_IC_PRP_VF: return 0;
611 case IPUV3_CHANNEL_G_MEM_IC_PP: return 1;
612 case IPUV3_CHANNEL_MEM_FG_SYNC: return 2;
613 case IPUV3_CHANNEL_MEM_FG_ASYNC: return 3;
614 case IPUV3_CHANNEL_MEM_BG_SYNC: return 4;
615 case IPUV3_CHANNEL_MEM_BG_ASYNC: return 5;
616 case IPUV3_CHANNEL_MEM_VDI_PLANE1_COMB: return 6;
617 default:
618 return -EINVAL;
619 }
620 }
621
622 static void ipu_cpmem_set_separate_alpha(struct ipuv3_channel *ch)
623 {
624 struct ipu_soc *ipu = ch->ipu;
625 int albm;
626 u32 val;
627
628 albm = ipu_channel_albm(ch->num);
629 if (albm < 0)
630 return;
631
632 ipu_ch_param_write_field(ch, IPU_FIELD_ALU, 1);
633 ipu_ch_param_write_field(ch, IPU_FIELD_ALBM, albm);
634 ipu_ch_param_write_field(ch, IPU_FIELD_CRE, 1);
635
636 val = ipu_idmac_read(ipu, IDMAC_SEP_ALPHA);
637 val |= BIT(ch->num);
638 ipu_idmac_write(ipu, val, IDMAC_SEP_ALPHA);
639 }
640
641 int ipu_cpmem_set_fmt(struct ipuv3_channel *ch, u32 drm_fourcc)
642 {
643 switch (drm_fourcc) {
644 case DRM_FORMAT_YUV420:
645 case DRM_FORMAT_YVU420:
646 /* pix format */
647 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 2);
648 /* burst size */
649 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
650 break;
651 case DRM_FORMAT_YUV422:
652 case DRM_FORMAT_YVU422:
653 /* pix format */
654 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 1);
655 /* burst size */
656 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
657 break;
658 case DRM_FORMAT_YUV444:
659 case DRM_FORMAT_YVU444:
660 /* pix format */
661 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0);
662 /* burst size */
663 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
664 break;
665 case DRM_FORMAT_NV12:
666 /* pix format */
667 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 4);
668 /* burst size */
669 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
670 break;
671 case DRM_FORMAT_NV16:
672 /* pix format */
673 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 3);
674 /* burst size */
675 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
676 break;
677 case DRM_FORMAT_UYVY:
678 /* bits/pixel */
679 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3);
680 /* pix format */
681 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0xA);
682 /* burst size */
683 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
684 break;
685 case DRM_FORMAT_YUYV:
686 /* bits/pixel */
687 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3);
688 /* pix format */
689 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0x8);
690 /* burst size */
691 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
692 break;
693 case DRM_FORMAT_ABGR8888:
694 case DRM_FORMAT_XBGR8888:
695 ipu_cpmem_set_format_rgb(ch, &def_xbgr_32);
696 break;
697 case DRM_FORMAT_ARGB8888:
698 case DRM_FORMAT_XRGB8888:
699 ipu_cpmem_set_format_rgb(ch, &def_xrgb_32);
700 break;
701 case DRM_FORMAT_RGBA8888:
702 case DRM_FORMAT_RGBX8888:
703 case DRM_FORMAT_RGBX8888_A8:
704 ipu_cpmem_set_format_rgb(ch, &def_rgbx_32);
705 break;
706 case DRM_FORMAT_BGRA8888:
707 case DRM_FORMAT_BGRX8888:
708 case DRM_FORMAT_BGRX8888_A8:
709 ipu_cpmem_set_format_rgb(ch, &def_bgrx_32);
710 break;
711 case DRM_FORMAT_BGR888:
712 case DRM_FORMAT_BGR888_A8:
713 ipu_cpmem_set_format_rgb(ch, &def_bgr_24);
714 break;
715 case DRM_FORMAT_RGB888:
716 case DRM_FORMAT_RGB888_A8:
717 ipu_cpmem_set_format_rgb(ch, &def_rgb_24);
718 break;
719 case DRM_FORMAT_RGB565:
720 case DRM_FORMAT_RGB565_A8:
721 ipu_cpmem_set_format_rgb(ch, &def_rgb_16);
722 break;
723 case DRM_FORMAT_BGR565:
724 case DRM_FORMAT_BGR565_A8:
725 ipu_cpmem_set_format_rgb(ch, &def_bgr_16);
726 break;
727 case DRM_FORMAT_ARGB1555:
728 ipu_cpmem_set_format_rgb(ch, &def_argb_16);
729 break;
730 case DRM_FORMAT_ABGR1555:
731 ipu_cpmem_set_format_rgb(ch, &def_abgr_16);
732 break;
733 case DRM_FORMAT_RGBA5551:
734 ipu_cpmem_set_format_rgb(ch, &def_rgba_16);
735 break;
736 case DRM_FORMAT_BGRA5551:
737 ipu_cpmem_set_format_rgb(ch, &def_bgra_16);
738 break;
739 case DRM_FORMAT_ARGB4444:
740 ipu_cpmem_set_format_rgb(ch, &def_argb_16_4444);
741 break;
742 default:
743 return -EINVAL;
744 }
745
746 switch (drm_fourcc) {
747 case DRM_FORMAT_RGB565_A8:
748 case DRM_FORMAT_BGR565_A8:
749 case DRM_FORMAT_RGB888_A8:
750 case DRM_FORMAT_BGR888_A8:
751 case DRM_FORMAT_RGBX8888_A8:
752 case DRM_FORMAT_BGRX8888_A8:
753 ipu_ch_param_write_field(ch, IPU_FIELD_WID3, 7);
754 ipu_cpmem_set_separate_alpha(ch);
755 break;
756 default:
757 break;
758 }
759
760 return 0;
761 }
762 EXPORT_SYMBOL_GPL(ipu_cpmem_set_fmt);
763
764 int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image)
765 {
766 struct v4l2_pix_format *pix = &image->pix;
767 int offset, u_offset, v_offset;
768 int ret = 0;
769
770 pr_debug("%s: resolution: %dx%d stride: %d\n",
771 __func__, pix->width, pix->height,
772 pix->bytesperline);
773
774 ipu_cpmem_set_resolution(ch, image->rect.width, image->rect.height);
775 ipu_cpmem_set_stride(ch, pix->bytesperline);
776
777 ipu_cpmem_set_fmt(ch, v4l2_pix_fmt_to_drm_fourcc(pix->pixelformat));
778
779 switch (pix->pixelformat) {
780 case V4L2_PIX_FMT_YUV420:
781 offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
782 u_offset = image->u_offset ?
783 image->u_offset : U_OFFSET(pix, image->rect.left,
784 image->rect.top) - offset;
785 v_offset = image->v_offset ?
786 image->v_offset : V_OFFSET(pix, image->rect.left,
787 image->rect.top) - offset;
788
789 ipu_cpmem_set_yuv_planar_full(ch, pix->bytesperline / 2,
790 u_offset, v_offset);
791 break;
792 case V4L2_PIX_FMT_YVU420:
793 offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
794 u_offset = image->u_offset ?
795 image->u_offset : V_OFFSET(pix, image->rect.left,
796 image->rect.top) - offset;
797 v_offset = image->v_offset ?
798 image->v_offset : U_OFFSET(pix, image->rect.left,
799 image->rect.top) - offset;
800
801 ipu_cpmem_set_yuv_planar_full(ch, pix->bytesperline / 2,
802 u_offset, v_offset);
803 break;
804 case V4L2_PIX_FMT_YUV422P:
805 offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
806 u_offset = image->u_offset ?
807 image->u_offset : U2_OFFSET(pix, image->rect.left,
808 image->rect.top) - offset;
809 v_offset = image->v_offset ?
810 image->v_offset : V2_OFFSET(pix, image->rect.left,
811 image->rect.top) - offset;
812
813 ipu_cpmem_set_yuv_planar_full(ch, pix->bytesperline / 2,
814 u_offset, v_offset);
815 break;
816 case V4L2_PIX_FMT_NV12:
817 offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
818 u_offset = image->u_offset ?
819 image->u_offset : UV_OFFSET(pix, image->rect.left,
820 image->rect.top) - offset;
821 v_offset = image->v_offset ? image->v_offset : 0;
822
823 ipu_cpmem_set_yuv_planar_full(ch, pix->bytesperline,
824 u_offset, v_offset);
825 break;
826 case V4L2_PIX_FMT_NV16:
827 offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
828 u_offset = image->u_offset ?
829 image->u_offset : UV2_OFFSET(pix, image->rect.left,
830 image->rect.top) - offset;
831 v_offset = image->v_offset ? image->v_offset : 0;
832
833 ipu_cpmem_set_yuv_planar_full(ch, pix->bytesperline,
834 u_offset, v_offset);
835 break;
836 case V4L2_PIX_FMT_UYVY:
837 case V4L2_PIX_FMT_YUYV:
838 case V4L2_PIX_FMT_RGB565:
839 offset = image->rect.left * 2 +
840 image->rect.top * pix->bytesperline;
841 break;
842 case V4L2_PIX_FMT_RGB32:
843 case V4L2_PIX_FMT_BGR32:
844 case V4L2_PIX_FMT_ABGR32:
845 case V4L2_PIX_FMT_XBGR32:
846 case V4L2_PIX_FMT_BGRA32:
847 case V4L2_PIX_FMT_BGRX32:
848 case V4L2_PIX_FMT_RGBA32:
849 case V4L2_PIX_FMT_RGBX32:
850 case V4L2_PIX_FMT_ARGB32:
851 case V4L2_PIX_FMT_XRGB32:
852 offset = image->rect.left * 4 +
853 image->rect.top * pix->bytesperline;
854 break;
855 case V4L2_PIX_FMT_RGB24:
856 case V4L2_PIX_FMT_BGR24:
857 offset = image->rect.left * 3 +
858 image->rect.top * pix->bytesperline;
859 break;
860 case V4L2_PIX_FMT_SBGGR8:
861 case V4L2_PIX_FMT_SGBRG8:
862 case V4L2_PIX_FMT_SGRBG8:
863 case V4L2_PIX_FMT_SRGGB8:
864 case V4L2_PIX_FMT_GREY:
865 offset = image->rect.left + image->rect.top * pix->bytesperline;
866 break;
867 case V4L2_PIX_FMT_SBGGR16:
868 case V4L2_PIX_FMT_SGBRG16:
869 case V4L2_PIX_FMT_SGRBG16:
870 case V4L2_PIX_FMT_SRGGB16:
871 case V4L2_PIX_FMT_Y16:
872 offset = image->rect.left * 2 +
873 image->rect.top * pix->bytesperline;
874 break;
875 default:
876 /* This should not happen */
877 WARN_ON(1);
878 offset = 0;
879 ret = -EINVAL;
880 }
881
882 ipu_cpmem_set_buffer(ch, 0, image->phys0 + offset);
883 ipu_cpmem_set_buffer(ch, 1, image->phys1 + offset);
884
885 return ret;
886 }
887 EXPORT_SYMBOL_GPL(ipu_cpmem_set_image);
888
889 void ipu_cpmem_dump(struct ipuv3_channel *ch)
890 {
891 struct ipu_ch_param __iomem *p = ipu_get_cpmem(ch);
892 struct ipu_soc *ipu = ch->ipu;
893 int chno = ch->num;
894
895 dev_dbg(ipu->dev, "ch %d word 0 - %08X %08X %08X %08X %08X\n", chno,
896 readl(&p->word[0].data[0]),
897 readl(&p->word[0].data[1]),
898 readl(&p->word[0].data[2]),
899 readl(&p->word[0].data[3]),
900 readl(&p->word[0].data[4]));
901 dev_dbg(ipu->dev, "ch %d word 1 - %08X %08X %08X %08X %08X\n", chno,
902 readl(&p->word[1].data[0]),
903 readl(&p->word[1].data[1]),
904 readl(&p->word[1].data[2]),
905 readl(&p->word[1].data[3]),
906 readl(&p->word[1].data[4]));
907 dev_dbg(ipu->dev, "PFS 0x%x, ",
908 ipu_ch_param_read_field(ch, IPU_FIELD_PFS));
909 dev_dbg(ipu->dev, "BPP 0x%x, ",
910 ipu_ch_param_read_field(ch, IPU_FIELD_BPP));
911 dev_dbg(ipu->dev, "NPB 0x%x\n",
912 ipu_ch_param_read_field(ch, IPU_FIELD_NPB));
913
914 dev_dbg(ipu->dev, "FW %d, ",
915 ipu_ch_param_read_field(ch, IPU_FIELD_FW));
916 dev_dbg(ipu->dev, "FH %d, ",
917 ipu_ch_param_read_field(ch, IPU_FIELD_FH));
918 dev_dbg(ipu->dev, "EBA0 0x%x\n",
919 ipu_ch_param_read_field(ch, IPU_FIELD_EBA0) << 3);
920 dev_dbg(ipu->dev, "EBA1 0x%x\n",
921 ipu_ch_param_read_field(ch, IPU_FIELD_EBA1) << 3);
922 dev_dbg(ipu->dev, "Stride %d\n",
923 ipu_ch_param_read_field(ch, IPU_FIELD_SL));
924 dev_dbg(ipu->dev, "scan_order %d\n",
925 ipu_ch_param_read_field(ch, IPU_FIELD_SO));
926 dev_dbg(ipu->dev, "uv_stride %d\n",
927 ipu_ch_param_read_field(ch, IPU_FIELD_SLUV));
928 dev_dbg(ipu->dev, "u_offset 0x%x\n",
929 ipu_ch_param_read_field(ch, IPU_FIELD_UBO) << 3);
930 dev_dbg(ipu->dev, "v_offset 0x%x\n",
931 ipu_ch_param_read_field(ch, IPU_FIELD_VBO) << 3);
932
933 dev_dbg(ipu->dev, "Width0 %d+1, ",
934 ipu_ch_param_read_field(ch, IPU_FIELD_WID0));
935 dev_dbg(ipu->dev, "Width1 %d+1, ",
936 ipu_ch_param_read_field(ch, IPU_FIELD_WID1));
937 dev_dbg(ipu->dev, "Width2 %d+1, ",
938 ipu_ch_param_read_field(ch, IPU_FIELD_WID2));
939 dev_dbg(ipu->dev, "Width3 %d+1, ",
940 ipu_ch_param_read_field(ch, IPU_FIELD_WID3));
941 dev_dbg(ipu->dev, "Offset0 %d, ",
942 ipu_ch_param_read_field(ch, IPU_FIELD_OFS0));
943 dev_dbg(ipu->dev, "Offset1 %d, ",
944 ipu_ch_param_read_field(ch, IPU_FIELD_OFS1));
945 dev_dbg(ipu->dev, "Offset2 %d, ",
946 ipu_ch_param_read_field(ch, IPU_FIELD_OFS2));
947 dev_dbg(ipu->dev, "Offset3 %d\n",
948 ipu_ch_param_read_field(ch, IPU_FIELD_OFS3));
949 }
950 EXPORT_SYMBOL_GPL(ipu_cpmem_dump);
951
952 int ipu_cpmem_init(struct ipu_soc *ipu, struct device *dev, unsigned long base)
953 {
954 struct ipu_cpmem *cpmem;
955
956 cpmem = devm_kzalloc(dev, sizeof(*cpmem), GFP_KERNEL);
957 if (!cpmem)
958 return -ENOMEM;
959
960 ipu->cpmem_priv = cpmem;
961
962 spin_lock_init(&cpmem->lock);
963 cpmem->base = devm_ioremap(dev, base, SZ_128K);
964 if (!cpmem->base)
965 return -ENOMEM;
966
967 dev_dbg(dev, "CPMEM base: 0x%08lx remapped to %p\n",
968 base, cpmem->base);
969 cpmem->ipu = ipu;
970
971 return 0;
972 }
973
974 void ipu_cpmem_exit(struct ipu_soc *ipu)
975 {
976 }
Linux with added FPC-III support