1 /*
2 * Copyright (C) 2012 Mentor Graphics Inc.
3 * Copyright 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved.
4 *
5 * The code contained herein is licensed under the GNU General Public
6 * License. You may obtain a copy of the GNU General Public License
7 * Version 2 or later at the following locations:
8 *
9 * http://www.opensource.org/licenses/gpl-license.html
10 * http://www.gnu.org/copyleft/gpl.html
11 */
12 #include <linux/types.h>
13 #include <linux/bitrev.h>
14 #include <linux/io.h>
15 #include <drm/drm_fourcc.h>
16 #include "ipu-prv.h"
17
18 struct ipu_cpmem_word {
19 u32 data[5];
20 u32 res[3];
21 };
22
23 struct ipu_ch_param {
24 struct ipu_cpmem_word word[2];
25 };
26
27 struct ipu_cpmem {
28 struct ipu_ch_param __iomem *base;
29 u32 module;
30 spinlock_t lock;
31 int use_count;
32 struct ipu_soc *ipu;
33 };
34
35 #define IPU_CPMEM_WORD(word, ofs, size) ((((word) * 160 + (ofs)) << 8) | (size))
36
37 #define IPU_FIELD_UBO IPU_CPMEM_WORD(0, 46, 22)
38 #define IPU_FIELD_VBO IPU_CPMEM_WORD(0, 68, 22)
39 #define IPU_FIELD_IOX IPU_CPMEM_WORD(0, 90, 4)
40 #define IPU_FIELD_RDRW IPU_CPMEM_WORD(0, 94, 1)
41 #define IPU_FIELD_SO IPU_CPMEM_WORD(0, 113, 1)
42 #define IPU_FIELD_SLY IPU_CPMEM_WORD(1, 102, 14)
43 #define IPU_FIELD_SLUV IPU_CPMEM_WORD(1, 128, 14)
44
45 #define IPU_FIELD_XV IPU_CPMEM_WORD(0, 0, 10)
46 #define IPU_FIELD_YV IPU_CPMEM_WORD(0, 10, 9)
47 #define IPU_FIELD_XB IPU_CPMEM_WORD(0, 19, 13)
48 #define IPU_FIELD_YB IPU_CPMEM_WORD(0, 32, 12)
49 #define IPU_FIELD_NSB_B IPU_CPMEM_WORD(0, 44, 1)
50 #define IPU_FIELD_CF IPU_CPMEM_WORD(0, 45, 1)
51 #define IPU_FIELD_SX IPU_CPMEM_WORD(0, 46, 12)
52 #define IPU_FIELD_SY IPU_CPMEM_WORD(0, 58, 11)
53 #define IPU_FIELD_NS IPU_CPMEM_WORD(0, 69, 10)
54 #define IPU_FIELD_SDX IPU_CPMEM_WORD(0, 79, 7)
55 #define IPU_FIELD_SM IPU_CPMEM_WORD(0, 86, 10)
56 #define IPU_FIELD_SCC IPU_CPMEM_WORD(0, 96, 1)
57 #define IPU_FIELD_SCE IPU_CPMEM_WORD(0, 97, 1)
58 #define IPU_FIELD_SDY IPU_CPMEM_WORD(0, 98, 7)
59 #define IPU_FIELD_SDRX IPU_CPMEM_WORD(0, 105, 1)
60 #define IPU_FIELD_SDRY IPU_CPMEM_WORD(0, 106, 1)
61 #define IPU_FIELD_BPP IPU_CPMEM_WORD(0, 107, 3)
62 #define IPU_FIELD_DEC_SEL IPU_CPMEM_WORD(0, 110, 2)
63 #define IPU_FIELD_DIM IPU_CPMEM_WORD(0, 112, 1)
64 #define IPU_FIELD_BNDM IPU_CPMEM_WORD(0, 114, 3)
65 #define IPU_FIELD_BM IPU_CPMEM_WORD(0, 117, 2)
66 #define IPU_FIELD_ROT IPU_CPMEM_WORD(0, 119, 1)
67 #define IPU_FIELD_ROT_HF_VF IPU_CPMEM_WORD(0, 119, 3)
68 #define IPU_FIELD_HF IPU_CPMEM_WORD(0, 120, 1)
69 #define IPU_FIELD_VF IPU_CPMEM_WORD(0, 121, 1)
70 #define IPU_FIELD_THE IPU_CPMEM_WORD(0, 122, 1)
71 #define IPU_FIELD_CAP IPU_CPMEM_WORD(0, 123, 1)
72 #define IPU_FIELD_CAE IPU_CPMEM_WORD(0, 124, 1)
73 #define IPU_FIELD_FW IPU_CPMEM_WORD(0, 125, 13)
74 #define IPU_FIELD_FH IPU_CPMEM_WORD(0, 138, 12)
75 #define IPU_FIELD_EBA0 IPU_CPMEM_WORD(1, 0, 29)
76 #define IPU_FIELD_EBA1 IPU_CPMEM_WORD(1, 29, 29)
77 #define IPU_FIELD_ILO IPU_CPMEM_WORD(1, 58, 20)
78 #define IPU_FIELD_NPB IPU_CPMEM_WORD(1, 78, 7)
79 #define IPU_FIELD_PFS IPU_CPMEM_WORD(1, 85, 4)
80 #define IPU_FIELD_ALU IPU_CPMEM_WORD(1, 89, 1)
81 #define IPU_FIELD_ALBM IPU_CPMEM_WORD(1, 90, 3)
82 #define IPU_FIELD_ID IPU_CPMEM_WORD(1, 93, 2)
83 #define IPU_FIELD_TH IPU_CPMEM_WORD(1, 95, 7)
84 #define IPU_FIELD_SL IPU_CPMEM_WORD(1, 102, 14)
85 #define IPU_FIELD_WID0 IPU_CPMEM_WORD(1, 116, 3)
86 #define IPU_FIELD_WID1 IPU_CPMEM_WORD(1, 119, 3)
87 #define IPU_FIELD_WID2 IPU_CPMEM_WORD(1, 122, 3)
88 #define IPU_FIELD_WID3 IPU_CPMEM_WORD(1, 125, 3)
89 #define IPU_FIELD_OFS0 IPU_CPMEM_WORD(1, 128, 5)
90 #define IPU_FIELD_OFS1 IPU_CPMEM_WORD(1, 133, 5)
91 #define IPU_FIELD_OFS2 IPU_CPMEM_WORD(1, 138, 5)
92 #define IPU_FIELD_OFS3 IPU_CPMEM_WORD(1, 143, 5)
93 #define IPU_FIELD_SXYS IPU_CPMEM_WORD(1, 148, 1)
94 #define IPU_FIELD_CRE IPU_CPMEM_WORD(1, 149, 1)
95 #define IPU_FIELD_DEC_SEL2 IPU_CPMEM_WORD(1, 150, 1)
96
97 static inline struct ipu_ch_param __iomem *
ipu_get_cpmem(struct ipuv3_channel * ch)98 ipu_get_cpmem(struct ipuv3_channel *ch)
99 {
100 struct ipu_cpmem *cpmem = ch->ipu->cpmem_priv;
101
102 return cpmem->base + ch->num;
103 }
104
ipu_ch_param_write_field(struct ipuv3_channel * ch,u32 wbs,u32 v)105 static void ipu_ch_param_write_field(struct ipuv3_channel *ch, u32 wbs, u32 v)
106 {
107 struct ipu_ch_param __iomem *base = ipu_get_cpmem(ch);
108 u32 bit = (wbs >> 8) % 160;
109 u32 size = wbs & 0xff;
110 u32 word = (wbs >> 8) / 160;
111 u32 i = bit / 32;
112 u32 ofs = bit % 32;
113 u32 mask = (1 << size) - 1;
114 u32 val;
115
116 pr_debug("%s %d %d %d\n", __func__, word, bit , size);
117
118 val = readl(&base->word[word].data[i]);
119 val &= ~(mask << ofs);
120 val |= v << ofs;
121 writel(val, &base->word[word].data[i]);
122
123 if ((bit + size - 1) / 32 > i) {
124 val = readl(&base->word[word].data[i + 1]);
125 val &= ~(mask >> (ofs ? (32 - ofs) : 0));
126 val |= v >> (ofs ? (32 - ofs) : 0);
127 writel(val, &base->word[word].data[i + 1]);
128 }
129 }
130
ipu_ch_param_read_field(struct ipuv3_channel * ch,u32 wbs)131 static u32 ipu_ch_param_read_field(struct ipuv3_channel *ch, u32 wbs)
132 {
133 struct ipu_ch_param __iomem *base = ipu_get_cpmem(ch);
134 u32 bit = (wbs >> 8) % 160;
135 u32 size = wbs & 0xff;
136 u32 word = (wbs >> 8) / 160;
137 u32 i = bit / 32;
138 u32 ofs = bit % 32;
139 u32 mask = (1 << size) - 1;
140 u32 val = 0;
141
142 pr_debug("%s %d %d %d\n", __func__, word, bit , size);
143
144 val = (readl(&base->word[word].data[i]) >> ofs) & mask;
145
146 if ((bit + size - 1) / 32 > i) {
147 u32 tmp;
148
149 tmp = readl(&base->word[word].data[i + 1]);
150 tmp &= mask >> (ofs ? (32 - ofs) : 0);
151 val |= tmp << (ofs ? (32 - ofs) : 0);
152 }
153
154 return val;
155 }
156
157 /*
158 * The V4L2 spec defines packed RGB formats in memory byte order, which from
159 * point of view of the IPU corresponds to little-endian words with the first
160 * component in the least significant bits.
161 * The DRM pixel formats and IPU internal representation are ordered the other
162 * way around, with the first named component ordered at the most significant
163 * bits. Further, V4L2 formats are not well defined:
164 * http://linuxtv.org/downloads/v4l-dvb-apis/packed-rgb.html
165 * We choose the interpretation which matches GStreamer behavior.
166 */
v4l2_pix_fmt_to_drm_fourcc(u32 pixelformat)167 static int v4l2_pix_fmt_to_drm_fourcc(u32 pixelformat)
168 {
169 switch (pixelformat) {
170 case V4L2_PIX_FMT_RGB565:
171 /*
172 * Here we choose the 'corrected' interpretation of RGBP, a
173 * little-endian 16-bit word with the red component at the most
174 * significant bits:
175 * g[2:0]b[4:0] r[4:0]g[5:3] <=> [16:0] R:G:B
176 */
177 return DRM_FORMAT_RGB565;
178 case V4L2_PIX_FMT_BGR24:
179 /* B G R <=> [24:0] R:G:B */
180 return DRM_FORMAT_RGB888;
181 case V4L2_PIX_FMT_RGB24:
182 /* R G B <=> [24:0] B:G:R */
183 return DRM_FORMAT_BGR888;
184 case V4L2_PIX_FMT_BGR32:
185 /* B G R A <=> [32:0] A:B:G:R */
186 return DRM_FORMAT_XRGB8888;
187 case V4L2_PIX_FMT_RGB32:
188 /* R G B A <=> [32:0] A:B:G:R */
189 return DRM_FORMAT_XBGR8888;
190 case V4L2_PIX_FMT_UYVY:
191 return DRM_FORMAT_UYVY;
192 case V4L2_PIX_FMT_YUYV:
193 return DRM_FORMAT_YUYV;
194 case V4L2_PIX_FMT_YUV420:
195 return DRM_FORMAT_YUV420;
196 case V4L2_PIX_FMT_YUV422P:
197 return DRM_FORMAT_YUV422;
198 case V4L2_PIX_FMT_YVU420:
199 return DRM_FORMAT_YVU420;
200 case V4L2_PIX_FMT_NV12:
201 return DRM_FORMAT_NV12;
202 case V4L2_PIX_FMT_NV16:
203 return DRM_FORMAT_NV16;
204 }
205
206 return -EINVAL;
207 }
208
ipu_cpmem_zero(struct ipuv3_channel * ch)209 void ipu_cpmem_zero(struct ipuv3_channel *ch)
210 {
211 struct ipu_ch_param __iomem *p = ipu_get_cpmem(ch);
212 void __iomem *base = p;
213 int i;
214
215 for (i = 0; i < sizeof(*p) / sizeof(u32); i++)
216 writel(0, base + i * sizeof(u32));
217 }
218 EXPORT_SYMBOL_GPL(ipu_cpmem_zero);
219
ipu_cpmem_set_resolution(struct ipuv3_channel * ch,int xres,int yres)220 void ipu_cpmem_set_resolution(struct ipuv3_channel *ch, int xres, int yres)
221 {
222 ipu_ch_param_write_field(ch, IPU_FIELD_FW, xres - 1);
223 ipu_ch_param_write_field(ch, IPU_FIELD_FH, yres - 1);
224 }
225 EXPORT_SYMBOL_GPL(ipu_cpmem_set_resolution);
226
ipu_cpmem_set_stride(struct ipuv3_channel * ch,int stride)227 void ipu_cpmem_set_stride(struct ipuv3_channel *ch, int stride)
228 {
229 ipu_ch_param_write_field(ch, IPU_FIELD_SLY, stride - 1);
230 }
231 EXPORT_SYMBOL_GPL(ipu_cpmem_set_stride);
232
ipu_cpmem_set_high_priority(struct ipuv3_channel * ch)233 void ipu_cpmem_set_high_priority(struct ipuv3_channel *ch)
234 {
235 struct ipu_soc *ipu = ch->ipu;
236 u32 val;
237
238 if (ipu->ipu_type == IPUV3EX)
239 ipu_ch_param_write_field(ch, IPU_FIELD_ID, 1);
240
241 val = ipu_idmac_read(ipu, IDMAC_CHA_PRI(ch->num));
242 val |= 1 << (ch->num % 32);
243 ipu_idmac_write(ipu, val, IDMAC_CHA_PRI(ch->num));
244 };
245 EXPORT_SYMBOL_GPL(ipu_cpmem_set_high_priority);
246
ipu_cpmem_set_buffer(struct ipuv3_channel * ch,int bufnum,dma_addr_t buf)247 void ipu_cpmem_set_buffer(struct ipuv3_channel *ch, int bufnum, dma_addr_t buf)
248 {
249 if (bufnum)
250 ipu_ch_param_write_field(ch, IPU_FIELD_EBA1, buf >> 3);
251 else
252 ipu_ch_param_write_field(ch, IPU_FIELD_EBA0, buf >> 3);
253 }
254 EXPORT_SYMBOL_GPL(ipu_cpmem_set_buffer);
255
ipu_cpmem_interlaced_scan(struct ipuv3_channel * ch,int stride)256 void ipu_cpmem_interlaced_scan(struct ipuv3_channel *ch, int stride)
257 {
258 ipu_ch_param_write_field(ch, IPU_FIELD_SO, 1);
259 ipu_ch_param_write_field(ch, IPU_FIELD_ILO, stride / 8);
260 ipu_ch_param_write_field(ch, IPU_FIELD_SLY, (stride * 2) - 1);
261 };
262 EXPORT_SYMBOL_GPL(ipu_cpmem_interlaced_scan);
263
ipu_cpmem_set_axi_id(struct ipuv3_channel * ch,u32 id)264 void ipu_cpmem_set_axi_id(struct ipuv3_channel *ch, u32 id)
265 {
266 id &= 0x3;
267 ipu_ch_param_write_field(ch, IPU_FIELD_ID, id);
268 }
269 EXPORT_SYMBOL_GPL(ipu_cpmem_set_axi_id);
270
ipu_cpmem_set_burstsize(struct ipuv3_channel * ch,int burstsize)271 void ipu_cpmem_set_burstsize(struct ipuv3_channel *ch, int burstsize)
272 {
273 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, burstsize - 1);
274 };
275 EXPORT_SYMBOL_GPL(ipu_cpmem_set_burstsize);
276
ipu_cpmem_set_block_mode(struct ipuv3_channel * ch)277 void ipu_cpmem_set_block_mode(struct ipuv3_channel *ch)
278 {
279 ipu_ch_param_write_field(ch, IPU_FIELD_BM, 1);
280 }
281 EXPORT_SYMBOL_GPL(ipu_cpmem_set_block_mode);
282
ipu_cpmem_set_rotation(struct ipuv3_channel * ch,enum ipu_rotate_mode rot)283 void ipu_cpmem_set_rotation(struct ipuv3_channel *ch,
284 enum ipu_rotate_mode rot)
285 {
286 u32 temp_rot = bitrev8(rot) >> 5;
287
288 ipu_ch_param_write_field(ch, IPU_FIELD_ROT_HF_VF, temp_rot);
289 }
290 EXPORT_SYMBOL_GPL(ipu_cpmem_set_rotation);
291
ipu_cpmem_set_format_rgb(struct ipuv3_channel * ch,const struct ipu_rgb * rgb)292 int ipu_cpmem_set_format_rgb(struct ipuv3_channel *ch,
293 const struct ipu_rgb *rgb)
294 {
295 int bpp = 0, npb = 0, ro, go, bo, to;
296
297 ro = rgb->bits_per_pixel - rgb->red.length - rgb->red.offset;
298 go = rgb->bits_per_pixel - rgb->green.length - rgb->green.offset;
299 bo = rgb->bits_per_pixel - rgb->blue.length - rgb->blue.offset;
300 to = rgb->bits_per_pixel - rgb->transp.length - rgb->transp.offset;
301
302 ipu_ch_param_write_field(ch, IPU_FIELD_WID0, rgb->red.length - 1);
303 ipu_ch_param_write_field(ch, IPU_FIELD_OFS0, ro);
304 ipu_ch_param_write_field(ch, IPU_FIELD_WID1, rgb->green.length - 1);
305 ipu_ch_param_write_field(ch, IPU_FIELD_OFS1, go);
306 ipu_ch_param_write_field(ch, IPU_FIELD_WID2, rgb->blue.length - 1);
307 ipu_ch_param_write_field(ch, IPU_FIELD_OFS2, bo);
308
309 if (rgb->transp.length) {
310 ipu_ch_param_write_field(ch, IPU_FIELD_WID3,
311 rgb->transp.length - 1);
312 ipu_ch_param_write_field(ch, IPU_FIELD_OFS3, to);
313 } else {
314 ipu_ch_param_write_field(ch, IPU_FIELD_WID3, 7);
315 ipu_ch_param_write_field(ch, IPU_FIELD_OFS3,
316 rgb->bits_per_pixel);
317 }
318
319 switch (rgb->bits_per_pixel) {
320 case 32:
321 bpp = 0;
322 npb = 15;
323 break;
324 case 24:
325 bpp = 1;
326 npb = 19;
327 break;
328 case 16:
329 bpp = 3;
330 npb = 31;
331 break;
332 case 8:
333 bpp = 5;
334 npb = 63;
335 break;
336 default:
337 return -EINVAL;
338 }
339 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, bpp);
340 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, npb);
341 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 7); /* rgb mode */
342
343 return 0;
344 }
345 EXPORT_SYMBOL_GPL(ipu_cpmem_set_format_rgb);
346
ipu_cpmem_set_format_passthrough(struct ipuv3_channel * ch,int width)347 int ipu_cpmem_set_format_passthrough(struct ipuv3_channel *ch, int width)
348 {
349 int bpp = 0, npb = 0;
350
351 switch (width) {
352 case 32:
353 bpp = 0;
354 npb = 15;
355 break;
356 case 24:
357 bpp = 1;
358 npb = 19;
359 break;
360 case 16:
361 bpp = 3;
362 npb = 31;
363 break;
364 case 8:
365 bpp = 5;
366 npb = 63;
367 break;
368 default:
369 return -EINVAL;
370 }
371
372 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, bpp);
373 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, npb);
374 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 6); /* raw mode */
375
376 return 0;
377 }
378 EXPORT_SYMBOL_GPL(ipu_cpmem_set_format_passthrough);
379
ipu_cpmem_set_yuv_interleaved(struct ipuv3_channel * ch,u32 pixel_format)380 void ipu_cpmem_set_yuv_interleaved(struct ipuv3_channel *ch, u32 pixel_format)
381 {
382 switch (pixel_format) {
383 case V4L2_PIX_FMT_UYVY:
384 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3); /* bits/pixel */
385 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0xA);/* pix fmt */
386 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);/* burst size */
387 break;
388 case V4L2_PIX_FMT_YUYV:
389 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3); /* bits/pixel */
390 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0x8);/* pix fmt */
391 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);/* burst size */
392 break;
393 }
394 }
395 EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_interleaved);
396
ipu_cpmem_set_yuv_planar_full(struct ipuv3_channel * ch,u32 pixel_format,int stride,int u_offset,int v_offset)397 void ipu_cpmem_set_yuv_planar_full(struct ipuv3_channel *ch,
398 u32 pixel_format, int stride,
399 int u_offset, int v_offset)
400 {
401 switch (pixel_format) {
402 case V4L2_PIX_FMT_YUV420:
403 case V4L2_PIX_FMT_YUV422P:
404 ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, (stride / 2) - 1);
405 ipu_ch_param_write_field(ch, IPU_FIELD_UBO, u_offset / 8);
406 ipu_ch_param_write_field(ch, IPU_FIELD_VBO, v_offset / 8);
407 break;
408 case V4L2_PIX_FMT_YVU420:
409 ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, (stride / 2) - 1);
410 ipu_ch_param_write_field(ch, IPU_FIELD_UBO, v_offset / 8);
411 ipu_ch_param_write_field(ch, IPU_FIELD_VBO, u_offset / 8);
412 break;
413 case V4L2_PIX_FMT_NV12:
414 case V4L2_PIX_FMT_NV16:
415 ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, stride - 1);
416 ipu_ch_param_write_field(ch, IPU_FIELD_UBO, u_offset / 8);
417 ipu_ch_param_write_field(ch, IPU_FIELD_VBO, u_offset / 8);
418 break;
419 }
420 }
421 EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar_full);
422
ipu_cpmem_set_yuv_planar(struct ipuv3_channel * ch,u32 pixel_format,int stride,int height)423 void ipu_cpmem_set_yuv_planar(struct ipuv3_channel *ch,
424 u32 pixel_format, int stride, int height)
425 {
426 int u_offset, v_offset;
427 int uv_stride = 0;
428
429 switch (pixel_format) {
430 case V4L2_PIX_FMT_YUV420:
431 case V4L2_PIX_FMT_YVU420:
432 uv_stride = stride / 2;
433 u_offset = stride * height;
434 v_offset = u_offset + (uv_stride * height / 2);
435 ipu_cpmem_set_yuv_planar_full(ch, pixel_format, stride,
436 u_offset, v_offset);
437 break;
438 case V4L2_PIX_FMT_YUV422P:
439 uv_stride = stride / 2;
440 u_offset = stride * height;
441 v_offset = u_offset + (uv_stride * height);
442 ipu_cpmem_set_yuv_planar_full(ch, pixel_format, stride,
443 u_offset, v_offset);
444 break;
445 case V4L2_PIX_FMT_NV12:
446 case V4L2_PIX_FMT_NV16:
447 u_offset = stride * height;
448 ipu_cpmem_set_yuv_planar_full(ch, pixel_format, stride,
449 u_offset, 0);
450 break;
451 }
452 }
453 EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar);
454
455 static const struct ipu_rgb def_rgb_32 = {
456 .red = { .offset = 16, .length = 8, },
457 .green = { .offset = 8, .length = 8, },
458 .blue = { .offset = 0, .length = 8, },
459 .transp = { .offset = 24, .length = 8, },
460 .bits_per_pixel = 32,
461 };
462
463 static const struct ipu_rgb def_bgr_32 = {
464 .red = { .offset = 0, .length = 8, },
465 .green = { .offset = 8, .length = 8, },
466 .blue = { .offset = 16, .length = 8, },
467 .transp = { .offset = 24, .length = 8, },
468 .bits_per_pixel = 32,
469 };
470
471 static const struct ipu_rgb def_rgb_24 = {
472 .red = { .offset = 16, .length = 8, },
473 .green = { .offset = 8, .length = 8, },
474 .blue = { .offset = 0, .length = 8, },
475 .transp = { .offset = 0, .length = 0, },
476 .bits_per_pixel = 24,
477 };
478
479 static const struct ipu_rgb def_bgr_24 = {
480 .red = { .offset = 0, .length = 8, },
481 .green = { .offset = 8, .length = 8, },
482 .blue = { .offset = 16, .length = 8, },
483 .transp = { .offset = 0, .length = 0, },
484 .bits_per_pixel = 24,
485 };
486
487 static const struct ipu_rgb def_rgb_16 = {
488 .red = { .offset = 11, .length = 5, },
489 .green = { .offset = 5, .length = 6, },
490 .blue = { .offset = 0, .length = 5, },
491 .transp = { .offset = 0, .length = 0, },
492 .bits_per_pixel = 16,
493 };
494
495 static const struct ipu_rgb def_bgr_16 = {
496 .red = { .offset = 0, .length = 5, },
497 .green = { .offset = 5, .length = 6, },
498 .blue = { .offset = 11, .length = 5, },
499 .transp = { .offset = 0, .length = 0, },
500 .bits_per_pixel = 16,
501 };
502
503 #define Y_OFFSET(pix, x, y) ((x) + pix->width * (y))
504 #define U_OFFSET(pix, x, y) ((pix->width * pix->height) + \
505 (pix->width * (y) / 4) + (x) / 2)
506 #define V_OFFSET(pix, x, y) ((pix->width * pix->height) + \
507 (pix->width * pix->height / 4) + \
508 (pix->width * (y) / 4) + (x) / 2)
509 #define U2_OFFSET(pix, x, y) ((pix->width * pix->height) + \
510 (pix->width * (y) / 2) + (x) / 2)
511 #define V2_OFFSET(pix, x, y) ((pix->width * pix->height) + \
512 (pix->width * pix->height / 2) + \
513 (pix->width * (y) / 2) + (x) / 2)
514 #define UV_OFFSET(pix, x, y) ((pix->width * pix->height) + \
515 (pix->width * (y) / 2) + (x))
516 #define UV2_OFFSET(pix, x, y) ((pix->width * pix->height) + \
517 (pix->width * y) + (x))
518
ipu_cpmem_set_fmt(struct ipuv3_channel * ch,u32 drm_fourcc)519 int ipu_cpmem_set_fmt(struct ipuv3_channel *ch, u32 drm_fourcc)
520 {
521 switch (drm_fourcc) {
522 case DRM_FORMAT_YUV420:
523 case DRM_FORMAT_YVU420:
524 /* pix format */
525 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 2);
526 /* burst size */
527 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
528 break;
529 case DRM_FORMAT_YUV422:
530 case DRM_FORMAT_YVU422:
531 /* pix format */
532 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 1);
533 /* burst size */
534 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
535 break;
536 case DRM_FORMAT_NV12:
537 /* pix format */
538 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 4);
539 /* burst size */
540 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
541 break;
542 case DRM_FORMAT_NV16:
543 /* pix format */
544 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 3);
545 /* burst size */
546 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
547 break;
548 case DRM_FORMAT_UYVY:
549 /* bits/pixel */
550 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3);
551 /* pix format */
552 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0xA);
553 /* burst size */
554 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
555 break;
556 case DRM_FORMAT_YUYV:
557 /* bits/pixel */
558 ipu_ch_param_write_field(ch, IPU_FIELD_BPP, 3);
559 /* pix format */
560 ipu_ch_param_write_field(ch, IPU_FIELD_PFS, 0x8);
561 /* burst size */
562 ipu_ch_param_write_field(ch, IPU_FIELD_NPB, 31);
563 break;
564 case DRM_FORMAT_ABGR8888:
565 case DRM_FORMAT_XBGR8888:
566 ipu_cpmem_set_format_rgb(ch, &def_bgr_32);
567 break;
568 case DRM_FORMAT_ARGB8888:
569 case DRM_FORMAT_XRGB8888:
570 ipu_cpmem_set_format_rgb(ch, &def_rgb_32);
571 break;
572 case DRM_FORMAT_BGR888:
573 ipu_cpmem_set_format_rgb(ch, &def_bgr_24);
574 break;
575 case DRM_FORMAT_RGB888:
576 ipu_cpmem_set_format_rgb(ch, &def_rgb_24);
577 break;
578 case DRM_FORMAT_RGB565:
579 ipu_cpmem_set_format_rgb(ch, &def_rgb_16);
580 break;
581 case DRM_FORMAT_BGR565:
582 ipu_cpmem_set_format_rgb(ch, &def_bgr_16);
583 break;
584 default:
585 return -EINVAL;
586 }
587
588 return 0;
589 }
590 EXPORT_SYMBOL_GPL(ipu_cpmem_set_fmt);
591
ipu_cpmem_set_image(struct ipuv3_channel * ch,struct ipu_image * image)592 int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image)
593 {
594 struct v4l2_pix_format *pix = &image->pix;
595 int offset, u_offset, v_offset;
596
597 pr_debug("%s: resolution: %dx%d stride: %d\n",
598 __func__, pix->width, pix->height,
599 pix->bytesperline);
600
601 ipu_cpmem_set_resolution(ch, image->rect.width, image->rect.height);
602 ipu_cpmem_set_stride(ch, pix->bytesperline);
603
604 ipu_cpmem_set_fmt(ch, v4l2_pix_fmt_to_drm_fourcc(pix->pixelformat));
605
606 switch (pix->pixelformat) {
607 case V4L2_PIX_FMT_YUV420:
608 case V4L2_PIX_FMT_YVU420:
609 offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
610 u_offset = U_OFFSET(pix, image->rect.left,
611 image->rect.top) - offset;
612 v_offset = V_OFFSET(pix, image->rect.left,
613 image->rect.top) - offset;
614
615 ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
616 pix->bytesperline,
617 u_offset, v_offset);
618 break;
619 case V4L2_PIX_FMT_YUV422P:
620 offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
621 u_offset = U2_OFFSET(pix, image->rect.left,
622 image->rect.top) - offset;
623 v_offset = V2_OFFSET(pix, image->rect.left,
624 image->rect.top) - offset;
625
626 ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
627 pix->bytesperline,
628 u_offset, v_offset);
629 break;
630 case V4L2_PIX_FMT_NV12:
631 offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
632 u_offset = UV_OFFSET(pix, image->rect.left,
633 image->rect.top) - offset;
634 v_offset = 0;
635
636 ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
637 pix->bytesperline,
638 u_offset, v_offset);
639 break;
640 case V4L2_PIX_FMT_NV16:
641 offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
642 u_offset = UV2_OFFSET(pix, image->rect.left,
643 image->rect.top) - offset;
644 v_offset = 0;
645
646 ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
647 pix->bytesperline,
648 u_offset, v_offset);
649 break;
650 case V4L2_PIX_FMT_UYVY:
651 case V4L2_PIX_FMT_YUYV:
652 case V4L2_PIX_FMT_RGB565:
653 offset = image->rect.left * 2 +
654 image->rect.top * pix->bytesperline;
655 break;
656 case V4L2_PIX_FMT_RGB32:
657 case V4L2_PIX_FMT_BGR32:
658 offset = image->rect.left * 4 +
659 image->rect.top * pix->bytesperline;
660 break;
661 case V4L2_PIX_FMT_RGB24:
662 case V4L2_PIX_FMT_BGR24:
663 offset = image->rect.left * 3 +
664 image->rect.top * pix->bytesperline;
665 break;
666 default:
667 return -EINVAL;
668 }
669
670 ipu_cpmem_set_buffer(ch, 0, image->phys0 + offset);
671 ipu_cpmem_set_buffer(ch, 1, image->phys1 + offset);
672
673 return 0;
674 }
675 EXPORT_SYMBOL_GPL(ipu_cpmem_set_image);
676
ipu_cpmem_dump(struct ipuv3_channel * ch)677 void ipu_cpmem_dump(struct ipuv3_channel *ch)
678 {
679 struct ipu_ch_param __iomem *p = ipu_get_cpmem(ch);
680 struct ipu_soc *ipu = ch->ipu;
681 int chno = ch->num;
682
683 dev_dbg(ipu->dev, "ch %d word 0 - %08X %08X %08X %08X %08X\n", chno,
684 readl(&p->word[0].data[0]),
685 readl(&p->word[0].data[1]),
686 readl(&p->word[0].data[2]),
687 readl(&p->word[0].data[3]),
688 readl(&p->word[0].data[4]));
689 dev_dbg(ipu->dev, "ch %d word 1 - %08X %08X %08X %08X %08X\n", chno,
690 readl(&p->word[1].data[0]),
691 readl(&p->word[1].data[1]),
692 readl(&p->word[1].data[2]),
693 readl(&p->word[1].data[3]),
694 readl(&p->word[1].data[4]));
695 dev_dbg(ipu->dev, "PFS 0x%x, ",
696 ipu_ch_param_read_field(ch, IPU_FIELD_PFS));
697 dev_dbg(ipu->dev, "BPP 0x%x, ",
698 ipu_ch_param_read_field(ch, IPU_FIELD_BPP));
699 dev_dbg(ipu->dev, "NPB 0x%x\n",
700 ipu_ch_param_read_field(ch, IPU_FIELD_NPB));
701
702 dev_dbg(ipu->dev, "FW %d, ",
703 ipu_ch_param_read_field(ch, IPU_FIELD_FW));
704 dev_dbg(ipu->dev, "FH %d, ",
705 ipu_ch_param_read_field(ch, IPU_FIELD_FH));
706 dev_dbg(ipu->dev, "EBA0 0x%x\n",
707 ipu_ch_param_read_field(ch, IPU_FIELD_EBA0) << 3);
708 dev_dbg(ipu->dev, "EBA1 0x%x\n",
709 ipu_ch_param_read_field(ch, IPU_FIELD_EBA1) << 3);
710 dev_dbg(ipu->dev, "Stride %d\n",
711 ipu_ch_param_read_field(ch, IPU_FIELD_SL));
712 dev_dbg(ipu->dev, "scan_order %d\n",
713 ipu_ch_param_read_field(ch, IPU_FIELD_SO));
714 dev_dbg(ipu->dev, "uv_stride %d\n",
715 ipu_ch_param_read_field(ch, IPU_FIELD_SLUV));
716 dev_dbg(ipu->dev, "u_offset 0x%x\n",
717 ipu_ch_param_read_field(ch, IPU_FIELD_UBO) << 3);
718 dev_dbg(ipu->dev, "v_offset 0x%x\n",
719 ipu_ch_param_read_field(ch, IPU_FIELD_VBO) << 3);
720
721 dev_dbg(ipu->dev, "Width0 %d+1, ",
722 ipu_ch_param_read_field(ch, IPU_FIELD_WID0));
723 dev_dbg(ipu->dev, "Width1 %d+1, ",
724 ipu_ch_param_read_field(ch, IPU_FIELD_WID1));
725 dev_dbg(ipu->dev, "Width2 %d+1, ",
726 ipu_ch_param_read_field(ch, IPU_FIELD_WID2));
727 dev_dbg(ipu->dev, "Width3 %d+1, ",
728 ipu_ch_param_read_field(ch, IPU_FIELD_WID3));
729 dev_dbg(ipu->dev, "Offset0 %d, ",
730 ipu_ch_param_read_field(ch, IPU_FIELD_OFS0));
731 dev_dbg(ipu->dev, "Offset1 %d, ",
732 ipu_ch_param_read_field(ch, IPU_FIELD_OFS1));
733 dev_dbg(ipu->dev, "Offset2 %d, ",
734 ipu_ch_param_read_field(ch, IPU_FIELD_OFS2));
735 dev_dbg(ipu->dev, "Offset3 %d\n",
736 ipu_ch_param_read_field(ch, IPU_FIELD_OFS3));
737 }
738 EXPORT_SYMBOL_GPL(ipu_cpmem_dump);
739
ipu_cpmem_init(struct ipu_soc * ipu,struct device * dev,unsigned long base)740 int ipu_cpmem_init(struct ipu_soc *ipu, struct device *dev, unsigned long base)
741 {
742 struct ipu_cpmem *cpmem;
743
744 cpmem = devm_kzalloc(dev, sizeof(*cpmem), GFP_KERNEL);
745 if (!cpmem)
746 return -ENOMEM;
747
748 ipu->cpmem_priv = cpmem;
749
750 spin_lock_init(&cpmem->lock);
751 cpmem->base = devm_ioremap(dev, base, SZ_128K);
752 if (!cpmem->base)
753 return -ENOMEM;
754
755 dev_dbg(dev, "CPMEM base: 0x%08lx remapped to %p\n",
756 base, cpmem->base);
757 cpmem->ipu = ipu;
758
759 return 0;
760 }
761
ipu_cpmem_exit(struct ipu_soc * ipu)762 void ipu_cpmem_exit(struct ipu_soc *ipu)
763 {
764 }
765