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[people/ms/u-boot.git] / drivers / video / ipu_disp.c
1 /*
2 * Porting to u-boot:
3 *
4 * (C) Copyright 2010
5 * Stefano Babic, DENX Software Engineering, sbabic@denx.de
6 *
7 * Linux IPU driver for MX51:
8 *
9 * (C) Copyright 2005-2010 Freescale Semiconductor, Inc.
10 *
11 * SPDX-License-Identifier: GPL-2.0+
12 */
13
14 /* #define DEBUG */
15
16 #include <common.h>
17 #include <linux/types.h>
18 #include <linux/errno.h>
19 #include <asm/io.h>
20 #include <asm/arch/imx-regs.h>
21 #include <asm/arch/sys_proto.h>
22 #include "ipu.h"
23 #include "ipu_regs.h"
24
25 enum csc_type_t {
26 RGB2YUV = 0,
27 YUV2RGB,
28 RGB2RGB,
29 YUV2YUV,
30 CSC_NONE,
31 CSC_NUM
32 };
33
34 struct dp_csc_param_t {
35 int mode;
36 const int (*coeff)[5][3];
37 };
38
39 #define SYNC_WAVE 0
40
41 /* DC display ID assignments */
42 #define DC_DISP_ID_SYNC(di) (di)
43 #define DC_DISP_ID_SERIAL 2
44 #define DC_DISP_ID_ASYNC 3
45
46 int dmfc_type_setup;
47 static int dmfc_size_28, dmfc_size_29, dmfc_size_24, dmfc_size_27, dmfc_size_23;
48 int g_di1_tvout;
49
50 extern struct clk *g_ipu_clk;
51 extern struct clk *g_ldb_clk;
52 extern struct clk *g_di_clk[2];
53 extern struct clk *g_pixel_clk[2];
54
55 extern unsigned char g_ipu_clk_enabled;
56 extern unsigned char g_dc_di_assignment[];
57
58 void ipu_dmfc_init(int dmfc_type, int first)
59 {
60 u32 dmfc_wr_chan, dmfc_dp_chan;
61
62 if (first) {
63 if (dmfc_type_setup > dmfc_type)
64 dmfc_type = dmfc_type_setup;
65 else
66 dmfc_type_setup = dmfc_type;
67
68 /* disable DMFC-IC channel*/
69 __raw_writel(0x2, DMFC_IC_CTRL);
70 } else if (dmfc_type_setup >= DMFC_HIGH_RESOLUTION_DC) {
71 printf("DMFC high resolution has set, will not change\n");
72 return;
73 } else
74 dmfc_type_setup = dmfc_type;
75
76 if (dmfc_type == DMFC_HIGH_RESOLUTION_DC) {
77 /* 1 - segment 0~3;
78 * 5B - segement 4, 5;
79 * 5F - segement 6, 7;
80 * 1C, 2C and 6B, 6F unused;
81 */
82 debug("IPU DMFC DC HIGH RES: 1(0~3), 5B(4,5), 5F(6,7)\n");
83 dmfc_wr_chan = 0x00000088;
84 dmfc_dp_chan = 0x00009694;
85 dmfc_size_28 = 256 * 4;
86 dmfc_size_29 = 0;
87 dmfc_size_24 = 0;
88 dmfc_size_27 = 128 * 4;
89 dmfc_size_23 = 128 * 4;
90 } else if (dmfc_type == DMFC_HIGH_RESOLUTION_DP) {
91 /* 1 - segment 0, 1;
92 * 5B - segement 2~5;
93 * 5F - segement 6,7;
94 * 1C, 2C and 6B, 6F unused;
95 */
96 debug("IPU DMFC DP HIGH RES: 1(0,1), 5B(2~5), 5F(6,7)\n");
97 dmfc_wr_chan = 0x00000090;
98 dmfc_dp_chan = 0x0000968a;
99 dmfc_size_28 = 128 * 4;
100 dmfc_size_29 = 0;
101 dmfc_size_24 = 0;
102 dmfc_size_27 = 128 * 4;
103 dmfc_size_23 = 256 * 4;
104 } else if (dmfc_type == DMFC_HIGH_RESOLUTION_ONLY_DP) {
105 /* 5B - segement 0~3;
106 * 5F - segement 4~7;
107 * 1, 1C, 2C and 6B, 6F unused;
108 */
109 debug("IPU DMFC ONLY-DP HIGH RES: 5B(0~3), 5F(4~7)\n");
110 dmfc_wr_chan = 0x00000000;
111 dmfc_dp_chan = 0x00008c88;
112 dmfc_size_28 = 0;
113 dmfc_size_29 = 0;
114 dmfc_size_24 = 0;
115 dmfc_size_27 = 256 * 4;
116 dmfc_size_23 = 256 * 4;
117 } else {
118 /* 1 - segment 0, 1;
119 * 5B - segement 4, 5;
120 * 5F - segement 6, 7;
121 * 1C, 2C and 6B, 6F unused;
122 */
123 debug("IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)\n");
124 dmfc_wr_chan = 0x00000090;
125 dmfc_dp_chan = 0x00009694;
126 dmfc_size_28 = 128 * 4;
127 dmfc_size_29 = 0;
128 dmfc_size_24 = 0;
129 dmfc_size_27 = 128 * 4;
130 dmfc_size_23 = 128 * 4;
131 }
132 __raw_writel(dmfc_wr_chan, DMFC_WR_CHAN);
133 __raw_writel(0x202020F6, DMFC_WR_CHAN_DEF);
134 __raw_writel(dmfc_dp_chan, DMFC_DP_CHAN);
135 /* Enable chan 5 watermark set at 5 bursts and clear at 7 bursts */
136 __raw_writel(0x2020F6F6, DMFC_DP_CHAN_DEF);
137 }
138
139 void ipu_dmfc_set_wait4eot(int dma_chan, int width)
140 {
141 u32 dmfc_gen1 = __raw_readl(DMFC_GENERAL1);
142
143 if (width >= HIGH_RESOLUTION_WIDTH) {
144 if (dma_chan == 23)
145 ipu_dmfc_init(DMFC_HIGH_RESOLUTION_DP, 0);
146 else if (dma_chan == 28)
147 ipu_dmfc_init(DMFC_HIGH_RESOLUTION_DC, 0);
148 }
149
150 if (dma_chan == 23) { /*5B*/
151 if (dmfc_size_23 / width > 3)
152 dmfc_gen1 |= 1UL << 20;
153 else
154 dmfc_gen1 &= ~(1UL << 20);
155 } else if (dma_chan == 24) { /*6B*/
156 if (dmfc_size_24 / width > 1)
157 dmfc_gen1 |= 1UL << 22;
158 else
159 dmfc_gen1 &= ~(1UL << 22);
160 } else if (dma_chan == 27) { /*5F*/
161 if (dmfc_size_27 / width > 2)
162 dmfc_gen1 |= 1UL << 21;
163 else
164 dmfc_gen1 &= ~(1UL << 21);
165 } else if (dma_chan == 28) { /*1*/
166 if (dmfc_size_28 / width > 2)
167 dmfc_gen1 |= 1UL << 16;
168 else
169 dmfc_gen1 &= ~(1UL << 16);
170 } else if (dma_chan == 29) { /*6F*/
171 if (dmfc_size_29 / width > 1)
172 dmfc_gen1 |= 1UL << 23;
173 else
174 dmfc_gen1 &= ~(1UL << 23);
175 }
176
177 __raw_writel(dmfc_gen1, DMFC_GENERAL1);
178 }
179
180 static void ipu_di_data_wave_config(int di,
181 int wave_gen,
182 int access_size, int component_size)
183 {
184 u32 reg;
185 reg = (access_size << DI_DW_GEN_ACCESS_SIZE_OFFSET) |
186 (component_size << DI_DW_GEN_COMPONENT_SIZE_OFFSET);
187 __raw_writel(reg, DI_DW_GEN(di, wave_gen));
188 }
189
190 static void ipu_di_data_pin_config(int di, int wave_gen, int di_pin, int set,
191 int up, int down)
192 {
193 u32 reg;
194
195 reg = __raw_readl(DI_DW_GEN(di, wave_gen));
196 reg &= ~(0x3 << (di_pin * 2));
197 reg |= set << (di_pin * 2);
198 __raw_writel(reg, DI_DW_GEN(di, wave_gen));
199
200 __raw_writel((down << 16) | up, DI_DW_SET(di, wave_gen, set));
201 }
202
203 static void ipu_di_sync_config(int di, int wave_gen,
204 int run_count, int run_src,
205 int offset_count, int offset_src,
206 int repeat_count, int cnt_clr_src,
207 int cnt_polarity_gen_en,
208 int cnt_polarity_clr_src,
209 int cnt_polarity_trigger_src,
210 int cnt_up, int cnt_down)
211 {
212 u32 reg;
213
214 if ((run_count >= 0x1000) || (offset_count >= 0x1000) ||
215 (repeat_count >= 0x1000) ||
216 (cnt_up >= 0x400) || (cnt_down >= 0x400)) {
217 printf("DI%d counters out of range.\n", di);
218 return;
219 }
220
221 reg = (run_count << 19) | (++run_src << 16) |
222 (offset_count << 3) | ++offset_src;
223 __raw_writel(reg, DI_SW_GEN0(di, wave_gen));
224 reg = (cnt_polarity_gen_en << 29) | (++cnt_clr_src << 25) |
225 (++cnt_polarity_trigger_src << 12) | (++cnt_polarity_clr_src << 9);
226 reg |= (cnt_down << 16) | cnt_up;
227 if (repeat_count == 0) {
228 /* Enable auto reload */
229 reg |= 0x10000000;
230 }
231 __raw_writel(reg, DI_SW_GEN1(di, wave_gen));
232 reg = __raw_readl(DI_STP_REP(di, wave_gen));
233 reg &= ~(0xFFFF << (16 * ((wave_gen - 1) & 0x1)));
234 reg |= repeat_count << (16 * ((wave_gen - 1) & 0x1));
235 __raw_writel(reg, DI_STP_REP(di, wave_gen));
236 }
237
238 static void ipu_dc_map_config(int map, int byte_num, int offset, int mask)
239 {
240 int ptr = map * 3 + byte_num;
241 u32 reg;
242
243 reg = __raw_readl(DC_MAP_CONF_VAL(ptr));
244 reg &= ~(0xFFFF << (16 * (ptr & 0x1)));
245 reg |= ((offset << 8) | mask) << (16 * (ptr & 0x1));
246 __raw_writel(reg, DC_MAP_CONF_VAL(ptr));
247
248 reg = __raw_readl(DC_MAP_CONF_PTR(map));
249 reg &= ~(0x1F << ((16 * (map & 0x1)) + (5 * byte_num)));
250 reg |= ptr << ((16 * (map & 0x1)) + (5 * byte_num));
251 __raw_writel(reg, DC_MAP_CONF_PTR(map));
252 }
253
254 static void ipu_dc_map_clear(int map)
255 {
256 u32 reg = __raw_readl(DC_MAP_CONF_PTR(map));
257 __raw_writel(reg & ~(0xFFFF << (16 * (map & 0x1))),
258 DC_MAP_CONF_PTR(map));
259 }
260
261 static void ipu_dc_write_tmpl(int word, u32 opcode, u32 operand, int map,
262 int wave, int glue, int sync)
263 {
264 u32 reg;
265 int stop = 1;
266
267 reg = sync;
268 reg |= (glue << 4);
269 reg |= (++wave << 11);
270 reg |= (++map << 15);
271 reg |= (operand << 20) & 0xFFF00000;
272 __raw_writel(reg, ipu_dc_tmpl_reg + word * 2);
273
274 reg = (operand >> 12);
275 reg |= opcode << 4;
276 reg |= (stop << 9);
277 __raw_writel(reg, ipu_dc_tmpl_reg + word * 2 + 1);
278 }
279
280 static void ipu_dc_link_event(int chan, int event, int addr, int priority)
281 {
282 u32 reg;
283
284 reg = __raw_readl(DC_RL_CH(chan, event));
285 reg &= ~(0xFFFF << (16 * (event & 0x1)));
286 reg |= ((addr << 8) | priority) << (16 * (event & 0x1));
287 __raw_writel(reg, DC_RL_CH(chan, event));
288 }
289
290 /* Y = R * 1.200 + G * 2.343 + B * .453 + 0.250;
291 * U = R * -.672 + G * -1.328 + B * 2.000 + 512.250.;
292 * V = R * 2.000 + G * -1.672 + B * -.328 + 512.250.;
293 */
294 static const int rgb2ycbcr_coeff[5][3] = {
295 {0x4D, 0x96, 0x1D},
296 {0x3D5, 0x3AB, 0x80},
297 {0x80, 0x395, 0x3EB},
298 {0x0000, 0x0200, 0x0200}, /* B0, B1, B2 */
299 {0x2, 0x2, 0x2}, /* S0, S1, S2 */
300 };
301
302 /* R = (1.164 * (Y - 16)) + (1.596 * (Cr - 128));
303 * G = (1.164 * (Y - 16)) - (0.392 * (Cb - 128)) - (0.813 * (Cr - 128));
304 * B = (1.164 * (Y - 16)) + (2.017 * (Cb - 128);
305 */
306 static const int ycbcr2rgb_coeff[5][3] = {
307 {0x095, 0x000, 0x0CC},
308 {0x095, 0x3CE, 0x398},
309 {0x095, 0x0FF, 0x000},
310 {0x3E42, 0x010A, 0x3DD6}, /*B0,B1,B2 */
311 {0x1, 0x1, 0x1}, /*S0,S1,S2 */
312 };
313
314 #define mask_a(a) ((u32)(a) & 0x3FF)
315 #define mask_b(b) ((u32)(b) & 0x3FFF)
316
317 /* Pls keep S0, S1 and S2 as 0x2 by using this convertion */
318 static int rgb_to_yuv(int n, int red, int green, int blue)
319 {
320 int c;
321 c = red * rgb2ycbcr_coeff[n][0];
322 c += green * rgb2ycbcr_coeff[n][1];
323 c += blue * rgb2ycbcr_coeff[n][2];
324 c /= 16;
325 c += rgb2ycbcr_coeff[3][n] * 4;
326 c += 8;
327 c /= 16;
328 if (c < 0)
329 c = 0;
330 if (c > 255)
331 c = 255;
332 return c;
333 }
334
335 /*
336 * Row is for BG: RGB2YUV YUV2RGB RGB2RGB YUV2YUV CSC_NONE
337 * Column is for FG: RGB2YUV YUV2RGB RGB2RGB YUV2YUV CSC_NONE
338 */
339 static struct dp_csc_param_t dp_csc_array[CSC_NUM][CSC_NUM] = {
340 {
341 {DP_COM_CONF_CSC_DEF_BOTH, &rgb2ycbcr_coeff},
342 {0, 0},
343 {0, 0},
344 {DP_COM_CONF_CSC_DEF_BG, &rgb2ycbcr_coeff},
345 {DP_COM_CONF_CSC_DEF_BG, &rgb2ycbcr_coeff}
346 },
347 {
348 {0, 0},
349 {DP_COM_CONF_CSC_DEF_BOTH, &ycbcr2rgb_coeff},
350 {DP_COM_CONF_CSC_DEF_BG, &ycbcr2rgb_coeff},
351 {0, 0},
352 {DP_COM_CONF_CSC_DEF_BG, &ycbcr2rgb_coeff}
353 },
354 {
355 {0, 0},
356 {DP_COM_CONF_CSC_DEF_FG, &ycbcr2rgb_coeff},
357 {0, 0},
358 {0, 0},
359 {0, 0}
360 },
361 {
362 {DP_COM_CONF_CSC_DEF_FG, &rgb2ycbcr_coeff},
363 {0, 0},
364 {0, 0},
365 {0, 0},
366 {0, 0}
367 },
368 {
369 {DP_COM_CONF_CSC_DEF_FG, &rgb2ycbcr_coeff},
370 {DP_COM_CONF_CSC_DEF_FG, &ycbcr2rgb_coeff},
371 {0, 0},
372 {0, 0},
373 {0, 0}
374 }
375 };
376
377 static enum csc_type_t fg_csc_type = CSC_NONE, bg_csc_type = CSC_NONE;
378 static int color_key_4rgb = 1;
379
380 static void ipu_dp_csc_setup(int dp, struct dp_csc_param_t dp_csc_param,
381 unsigned char srm_mode_update)
382 {
383 u32 reg;
384 const int (*coeff)[5][3];
385
386 if (dp_csc_param.mode >= 0) {
387 reg = __raw_readl(DP_COM_CONF());
388 reg &= ~DP_COM_CONF_CSC_DEF_MASK;
389 reg |= dp_csc_param.mode;
390 __raw_writel(reg, DP_COM_CONF());
391 }
392
393 coeff = dp_csc_param.coeff;
394
395 if (coeff) {
396 __raw_writel(mask_a((*coeff)[0][0]) |
397 (mask_a((*coeff)[0][1]) << 16), DP_CSC_A_0());
398 __raw_writel(mask_a((*coeff)[0][2]) |
399 (mask_a((*coeff)[1][0]) << 16), DP_CSC_A_1());
400 __raw_writel(mask_a((*coeff)[1][1]) |
401 (mask_a((*coeff)[1][2]) << 16), DP_CSC_A_2());
402 __raw_writel(mask_a((*coeff)[2][0]) |
403 (mask_a((*coeff)[2][1]) << 16), DP_CSC_A_3());
404 __raw_writel(mask_a((*coeff)[2][2]) |
405 (mask_b((*coeff)[3][0]) << 16) |
406 ((*coeff)[4][0] << 30), DP_CSC_0());
407 __raw_writel(mask_b((*coeff)[3][1]) | ((*coeff)[4][1] << 14) |
408 (mask_b((*coeff)[3][2]) << 16) |
409 ((*coeff)[4][2] << 30), DP_CSC_1());
410 }
411
412 if (srm_mode_update) {
413 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
414 __raw_writel(reg, IPU_SRM_PRI2);
415 }
416 }
417
418 int ipu_dp_init(ipu_channel_t channel, uint32_t in_pixel_fmt,
419 uint32_t out_pixel_fmt)
420 {
421 int in_fmt, out_fmt;
422 int dp;
423 int partial = 0;
424 uint32_t reg;
425
426 if (channel == MEM_FG_SYNC) {
427 dp = DP_SYNC;
428 partial = 1;
429 } else if (channel == MEM_BG_SYNC) {
430 dp = DP_SYNC;
431 partial = 0;
432 } else if (channel == MEM_BG_ASYNC0) {
433 dp = DP_ASYNC0;
434 partial = 0;
435 } else {
436 return -EINVAL;
437 }
438
439 in_fmt = format_to_colorspace(in_pixel_fmt);
440 out_fmt = format_to_colorspace(out_pixel_fmt);
441
442 if (partial) {
443 if (in_fmt == RGB) {
444 if (out_fmt == RGB)
445 fg_csc_type = RGB2RGB;
446 else
447 fg_csc_type = RGB2YUV;
448 } else {
449 if (out_fmt == RGB)
450 fg_csc_type = YUV2RGB;
451 else
452 fg_csc_type = YUV2YUV;
453 }
454 } else {
455 if (in_fmt == RGB) {
456 if (out_fmt == RGB)
457 bg_csc_type = RGB2RGB;
458 else
459 bg_csc_type = RGB2YUV;
460 } else {
461 if (out_fmt == RGB)
462 bg_csc_type = YUV2RGB;
463 else
464 bg_csc_type = YUV2YUV;
465 }
466 }
467
468 /* Transform color key from rgb to yuv if CSC is enabled */
469 reg = __raw_readl(DP_COM_CONF());
470 if (color_key_4rgb && (reg & DP_COM_CONF_GWCKE) &&
471 (((fg_csc_type == RGB2YUV) && (bg_csc_type == YUV2YUV)) ||
472 ((fg_csc_type == YUV2YUV) && (bg_csc_type == RGB2YUV)) ||
473 ((fg_csc_type == YUV2YUV) && (bg_csc_type == YUV2YUV)) ||
474 ((fg_csc_type == YUV2RGB) && (bg_csc_type == YUV2RGB)))) {
475 int red, green, blue;
476 int y, u, v;
477 uint32_t color_key = __raw_readl(DP_GRAPH_WIND_CTRL()) &
478 0xFFFFFFL;
479
480 debug("_ipu_dp_init color key 0x%x need change to yuv fmt!\n",
481 color_key);
482
483 red = (color_key >> 16) & 0xFF;
484 green = (color_key >> 8) & 0xFF;
485 blue = color_key & 0xFF;
486
487 y = rgb_to_yuv(0, red, green, blue);
488 u = rgb_to_yuv(1, red, green, blue);
489 v = rgb_to_yuv(2, red, green, blue);
490 color_key = (y << 16) | (u << 8) | v;
491
492 reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0xFF000000L;
493 __raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL());
494 color_key_4rgb = 0;
495
496 debug("_ipu_dp_init color key change to yuv fmt 0x%x!\n",
497 color_key);
498 }
499
500 ipu_dp_csc_setup(dp, dp_csc_array[bg_csc_type][fg_csc_type], 1);
501
502 return 0;
503 }
504
505 void ipu_dp_uninit(ipu_channel_t channel)
506 {
507 int dp;
508 int partial = 0;
509
510 if (channel == MEM_FG_SYNC) {
511 dp = DP_SYNC;
512 partial = 1;
513 } else if (channel == MEM_BG_SYNC) {
514 dp = DP_SYNC;
515 partial = 0;
516 } else if (channel == MEM_BG_ASYNC0) {
517 dp = DP_ASYNC0;
518 partial = 0;
519 } else {
520 return;
521 }
522
523 if (partial)
524 fg_csc_type = CSC_NONE;
525 else
526 bg_csc_type = CSC_NONE;
527
528 ipu_dp_csc_setup(dp, dp_csc_array[bg_csc_type][fg_csc_type], 0);
529 }
530
531 void ipu_dc_init(int dc_chan, int di, unsigned char interlaced)
532 {
533 u32 reg = 0;
534
535 if ((dc_chan == 1) || (dc_chan == 5)) {
536 if (interlaced) {
537 ipu_dc_link_event(dc_chan, DC_EVT_NL, 0, 3);
538 ipu_dc_link_event(dc_chan, DC_EVT_EOL, 0, 2);
539 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, 0, 1);
540 } else {
541 if (di) {
542 ipu_dc_link_event(dc_chan, DC_EVT_NL, 2, 3);
543 ipu_dc_link_event(dc_chan, DC_EVT_EOL, 3, 2);
544 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA,
545 4, 1);
546 } else {
547 ipu_dc_link_event(dc_chan, DC_EVT_NL, 5, 3);
548 ipu_dc_link_event(dc_chan, DC_EVT_EOL, 6, 2);
549 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA,
550 7, 1);
551 }
552 }
553 ipu_dc_link_event(dc_chan, DC_EVT_NF, 0, 0);
554 ipu_dc_link_event(dc_chan, DC_EVT_NFIELD, 0, 0);
555 ipu_dc_link_event(dc_chan, DC_EVT_EOF, 0, 0);
556 ipu_dc_link_event(dc_chan, DC_EVT_EOFIELD, 0, 0);
557 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN, 0, 0);
558 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR, 0, 0);
559
560 reg = 0x2;
561 reg |= DC_DISP_ID_SYNC(di) << DC_WR_CH_CONF_PROG_DISP_ID_OFFSET;
562 reg |= di << 2;
563 if (interlaced)
564 reg |= DC_WR_CH_CONF_FIELD_MODE;
565 } else if ((dc_chan == 8) || (dc_chan == 9)) {
566 /* async channels */
567 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_0, 0x64, 1);
568 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_1, 0x64, 1);
569
570 reg = 0x3;
571 reg |= DC_DISP_ID_SERIAL << DC_WR_CH_CONF_PROG_DISP_ID_OFFSET;
572 }
573 __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
574
575 __raw_writel(0x00000000, DC_WR_CH_ADDR(dc_chan));
576
577 __raw_writel(0x00000084, DC_GEN);
578 }
579
580 void ipu_dc_uninit(int dc_chan)
581 {
582 if ((dc_chan == 1) || (dc_chan == 5)) {
583 ipu_dc_link_event(dc_chan, DC_EVT_NL, 0, 0);
584 ipu_dc_link_event(dc_chan, DC_EVT_EOL, 0, 0);
585 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA, 0, 0);
586 ipu_dc_link_event(dc_chan, DC_EVT_NF, 0, 0);
587 ipu_dc_link_event(dc_chan, DC_EVT_NFIELD, 0, 0);
588 ipu_dc_link_event(dc_chan, DC_EVT_EOF, 0, 0);
589 ipu_dc_link_event(dc_chan, DC_EVT_EOFIELD, 0, 0);
590 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN, 0, 0);
591 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR, 0, 0);
592 } else if ((dc_chan == 8) || (dc_chan == 9)) {
593 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_W_0, 0, 0);
594 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_W_1, 0, 0);
595 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_W_0, 0, 0);
596 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_W_1, 0, 0);
597 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_0, 0, 0);
598 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_W_1, 0, 0);
599 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_R_0, 0, 0);
600 ipu_dc_link_event(dc_chan, DC_EVT_NEW_ADDR_R_1, 0, 0);
601 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_R_0, 0, 0);
602 ipu_dc_link_event(dc_chan, DC_EVT_NEW_CHAN_R_1, 0, 0);
603 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_R_0, 0, 0);
604 ipu_dc_link_event(dc_chan, DC_EVT_NEW_DATA_R_1, 0, 0);
605 }
606 }
607
608 void ipu_dp_dc_enable(ipu_channel_t channel)
609 {
610 int di;
611 uint32_t reg;
612 uint32_t dc_chan;
613
614 if (channel == MEM_DC_SYNC)
615 dc_chan = 1;
616 else if ((channel == MEM_BG_SYNC) || (channel == MEM_FG_SYNC))
617 dc_chan = 5;
618 else
619 return;
620
621 if (channel == MEM_FG_SYNC) {
622 /* Enable FG channel */
623 reg = __raw_readl(DP_COM_CONF());
624 __raw_writel(reg | DP_COM_CONF_FG_EN, DP_COM_CONF());
625
626 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
627 __raw_writel(reg, IPU_SRM_PRI2);
628 return;
629 }
630
631 di = g_dc_di_assignment[dc_chan];
632
633 /* Make sure other DC sync channel is not assigned same DI */
634 reg = __raw_readl(DC_WR_CH_CONF(6 - dc_chan));
635 if ((di << 2) == (reg & DC_WR_CH_CONF_PROG_DI_ID)) {
636 reg &= ~DC_WR_CH_CONF_PROG_DI_ID;
637 reg |= di ? 0 : DC_WR_CH_CONF_PROG_DI_ID;
638 __raw_writel(reg, DC_WR_CH_CONF(6 - dc_chan));
639 }
640
641 reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
642 reg |= 4 << DC_WR_CH_CONF_PROG_TYPE_OFFSET;
643 __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
644
645 clk_enable(g_pixel_clk[di]);
646 }
647
648 static unsigned char dc_swap;
649
650 void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap)
651 {
652 uint32_t reg;
653 uint32_t csc;
654 uint32_t dc_chan = 0;
655 int timeout = 50;
656 int irq = 0;
657
658 dc_swap = swap;
659
660 if (channel == MEM_DC_SYNC) {
661 dc_chan = 1;
662 irq = IPU_IRQ_DC_FC_1;
663 } else if (channel == MEM_BG_SYNC) {
664 dc_chan = 5;
665 irq = IPU_IRQ_DP_SF_END;
666 } else if (channel == MEM_FG_SYNC) {
667 /* Disable FG channel */
668 dc_chan = 5;
669
670 reg = __raw_readl(DP_COM_CONF());
671 csc = reg & DP_COM_CONF_CSC_DEF_MASK;
672 if (csc == DP_COM_CONF_CSC_DEF_FG)
673 reg &= ~DP_COM_CONF_CSC_DEF_MASK;
674
675 reg &= ~DP_COM_CONF_FG_EN;
676 __raw_writel(reg, DP_COM_CONF());
677
678 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
679 __raw_writel(reg, IPU_SRM_PRI2);
680
681 timeout = 50;
682
683 /*
684 * Wait for DC triple buffer to empty,
685 * this check is useful for tv overlay.
686 */
687 if (g_dc_di_assignment[dc_chan] == 0)
688 while ((__raw_readl(DC_STAT) & 0x00000002)
689 != 0x00000002) {
690 udelay(2000);
691 timeout -= 2;
692 if (timeout <= 0)
693 break;
694 }
695 else if (g_dc_di_assignment[dc_chan] == 1)
696 while ((__raw_readl(DC_STAT) & 0x00000020)
697 != 0x00000020) {
698 udelay(2000);
699 timeout -= 2;
700 if (timeout <= 0)
701 break;
702 }
703 return;
704 } else {
705 return;
706 }
707
708 if (dc_swap) {
709 /* Swap DC channel 1 and 5 settings, and disable old dc chan */
710 reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
711 __raw_writel(reg, DC_WR_CH_CONF(6 - dc_chan));
712 reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
713 reg ^= DC_WR_CH_CONF_PROG_DI_ID;
714 __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
715 } else {
716 /* Make sure that we leave at the irq starting edge */
717 __raw_writel(IPUIRQ_2_MASK(irq), IPUIRQ_2_STATREG(irq));
718 do {
719 reg = __raw_readl(IPUIRQ_2_STATREG(irq));
720 } while (!(reg & IPUIRQ_2_MASK(irq)));
721
722 reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
723 reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
724 __raw_writel(reg, DC_WR_CH_CONF(dc_chan));
725
726 reg = __raw_readl(IPU_DISP_GEN);
727 if (g_dc_di_assignment[dc_chan])
728 reg &= ~DI1_COUNTER_RELEASE;
729 else
730 reg &= ~DI0_COUNTER_RELEASE;
731 __raw_writel(reg, IPU_DISP_GEN);
732
733 /* Clock is already off because it must be done quickly, but
734 we need to fix the ref count */
735 clk_disable(g_pixel_clk[g_dc_di_assignment[dc_chan]]);
736 }
737 }
738
739 void ipu_init_dc_mappings(void)
740 {
741 /* IPU_PIX_FMT_RGB24 */
742 ipu_dc_map_clear(0);
743 ipu_dc_map_config(0, 0, 7, 0xFF);
744 ipu_dc_map_config(0, 1, 15, 0xFF);
745 ipu_dc_map_config(0, 2, 23, 0xFF);
746
747 /* IPU_PIX_FMT_RGB666 */
748 ipu_dc_map_clear(1);
749 ipu_dc_map_config(1, 0, 5, 0xFC);
750 ipu_dc_map_config(1, 1, 11, 0xFC);
751 ipu_dc_map_config(1, 2, 17, 0xFC);
752
753 /* IPU_PIX_FMT_YUV444 */
754 ipu_dc_map_clear(2);
755 ipu_dc_map_config(2, 0, 15, 0xFF);
756 ipu_dc_map_config(2, 1, 23, 0xFF);
757 ipu_dc_map_config(2, 2, 7, 0xFF);
758
759 /* IPU_PIX_FMT_RGB565 */
760 ipu_dc_map_clear(3);
761 ipu_dc_map_config(3, 0, 4, 0xF8);
762 ipu_dc_map_config(3, 1, 10, 0xFC);
763 ipu_dc_map_config(3, 2, 15, 0xF8);
764
765 /* IPU_PIX_FMT_LVDS666 */
766 ipu_dc_map_clear(4);
767 ipu_dc_map_config(4, 0, 5, 0xFC);
768 ipu_dc_map_config(4, 1, 13, 0xFC);
769 ipu_dc_map_config(4, 2, 21, 0xFC);
770 }
771
772 static int ipu_pixfmt_to_map(uint32_t fmt)
773 {
774 switch (fmt) {
775 case IPU_PIX_FMT_GENERIC:
776 case IPU_PIX_FMT_RGB24:
777 return 0;
778 case IPU_PIX_FMT_RGB666:
779 return 1;
780 case IPU_PIX_FMT_YUV444:
781 return 2;
782 case IPU_PIX_FMT_RGB565:
783 return 3;
784 case IPU_PIX_FMT_LVDS666:
785 return 4;
786 }
787
788 return -1;
789 }
790
791 /*
792 * This function is called to initialize a synchronous LCD panel.
793 *
794 * @param disp The DI the panel is attached to.
795 *
796 * @param pixel_clk Desired pixel clock frequency in Hz.
797 *
798 * @param pixel_fmt Input parameter for pixel format of buffer.
799 * Pixel format is a FOURCC ASCII code.
800 *
801 * @param width The width of panel in pixels.
802 *
803 * @param height The height of panel in pixels.
804 *
805 * @param hStartWidth The number of pixel clocks between the HSYNC
806 * signal pulse and the start of valid data.
807 *
808 * @param hSyncWidth The width of the HSYNC signal in units of pixel
809 * clocks.
810 *
811 * @param hEndWidth The number of pixel clocks between the end of
812 * valid data and the HSYNC signal for next line.
813 *
814 * @param vStartWidth The number of lines between the VSYNC
815 * signal pulse and the start of valid data.
816 *
817 * @param vSyncWidth The width of the VSYNC signal in units of lines
818 *
819 * @param vEndWidth The number of lines between the end of valid
820 * data and the VSYNC signal for next frame.
821 *
822 * @param sig Bitfield of signal polarities for LCD interface.
823 *
824 * @return This function returns 0 on success or negative error code on
825 * fail.
826 */
827
828 int32_t ipu_init_sync_panel(int disp, uint32_t pixel_clk,
829 uint16_t width, uint16_t height,
830 uint32_t pixel_fmt,
831 uint16_t h_start_width, uint16_t h_sync_width,
832 uint16_t h_end_width, uint16_t v_start_width,
833 uint16_t v_sync_width, uint16_t v_end_width,
834 uint32_t v_to_h_sync, ipu_di_signal_cfg_t sig)
835 {
836 uint32_t reg;
837 uint32_t di_gen, vsync_cnt;
838 uint32_t div, rounded_pixel_clk;
839 uint32_t h_total, v_total;
840 int map;
841 struct clk *di_parent;
842
843 debug("panel size = %d x %d\n", width, height);
844
845 if ((v_sync_width == 0) || (h_sync_width == 0))
846 return -EINVAL;
847
848 /* adapt panel to ipu restricitions */
849 if (v_end_width < 2) {
850 v_end_width = 2;
851 puts("WARNING: v_end_width (lower_margin) must be >= 2, adjusted\n");
852 }
853
854 h_total = width + h_sync_width + h_start_width + h_end_width;
855 v_total = height + v_sync_width + v_start_width + v_end_width;
856
857 /* Init clocking */
858 debug("pixel clk = %dHz\n", pixel_clk);
859
860 if (sig.ext_clk) {
861 if (!(g_di1_tvout && (disp == 1))) { /*not round div for tvout*/
862 /*
863 * Set the PLL to be an even multiple
864 * of the pixel clock.
865 */
866 if ((clk_get_usecount(g_pixel_clk[0]) == 0) &&
867 (clk_get_usecount(g_pixel_clk[1]) == 0)) {
868 di_parent = clk_get_parent(g_di_clk[disp]);
869 rounded_pixel_clk =
870 clk_round_rate(g_pixel_clk[disp],
871 pixel_clk);
872 div = clk_get_rate(di_parent) /
873 rounded_pixel_clk;
874 if (div % 2)
875 div++;
876 if (clk_get_rate(di_parent) != div *
877 rounded_pixel_clk)
878 clk_set_rate(di_parent,
879 div * rounded_pixel_clk);
880 udelay(10000);
881 clk_set_rate(g_di_clk[disp],
882 2 * rounded_pixel_clk);
883 udelay(10000);
884 }
885 }
886 clk_set_parent(g_pixel_clk[disp], g_ldb_clk);
887 } else {
888 if (clk_get_usecount(g_pixel_clk[disp]) != 0)
889 clk_set_parent(g_pixel_clk[disp], g_ipu_clk);
890 }
891 rounded_pixel_clk = clk_round_rate(g_pixel_clk[disp], pixel_clk);
892 clk_set_rate(g_pixel_clk[disp], rounded_pixel_clk);
893 udelay(5000);
894 /* Get integer portion of divider */
895 div = clk_get_rate(clk_get_parent(g_pixel_clk[disp])) /
896 rounded_pixel_clk;
897
898 ipu_di_data_wave_config(disp, SYNC_WAVE, div - 1, div - 1);
899 ipu_di_data_pin_config(disp, SYNC_WAVE, DI_PIN15, 3, 0, div * 2);
900
901 map = ipu_pixfmt_to_map(pixel_fmt);
902 if (map < 0) {
903 debug("IPU_DISP: No MAP\n");
904 return -EINVAL;
905 }
906
907 di_gen = __raw_readl(DI_GENERAL(disp));
908
909 if (sig.interlaced) {
910 /* Setup internal HSYNC waveform */
911 ipu_di_sync_config(
912 disp, /* display */
913 1, /* counter */
914 h_total / 2 - 1,/* run count */
915 DI_SYNC_CLK, /* run_resolution */
916 0, /* offset */
917 DI_SYNC_NONE, /* offset resolution */
918 0, /* repeat count */
919 DI_SYNC_NONE, /* CNT_CLR_SEL */
920 0, /* CNT_POLARITY_GEN_EN */
921 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
922 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
923 0, /* COUNT UP */
924 0 /* COUNT DOWN */
925 );
926
927 /* Field 1 VSYNC waveform */
928 ipu_di_sync_config(
929 disp, /* display */
930 2, /* counter */
931 h_total - 1, /* run count */
932 DI_SYNC_CLK, /* run_resolution */
933 0, /* offset */
934 DI_SYNC_NONE, /* offset resolution */
935 0, /* repeat count */
936 DI_SYNC_NONE, /* CNT_CLR_SEL */
937 0, /* CNT_POLARITY_GEN_EN */
938 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
939 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
940 0, /* COUNT UP */
941 4 /* COUNT DOWN */
942 );
943
944 /* Setup internal HSYNC waveform */
945 ipu_di_sync_config(
946 disp, /* display */
947 3, /* counter */
948 v_total * 2 - 1,/* run count */
949 DI_SYNC_INT_HSYNC, /* run_resolution */
950 1, /* offset */
951 DI_SYNC_INT_HSYNC, /* offset resolution */
952 0, /* repeat count */
953 DI_SYNC_NONE, /* CNT_CLR_SEL */
954 0, /* CNT_POLARITY_GEN_EN */
955 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
956 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
957 0, /* COUNT UP */
958 4 /* COUNT DOWN */
959 );
960
961 /* Active Field ? */
962 ipu_di_sync_config(
963 disp, /* display */
964 4, /* counter */
965 v_total / 2 - 1,/* run count */
966 DI_SYNC_HSYNC, /* run_resolution */
967 v_start_width, /* offset */
968 DI_SYNC_HSYNC, /* offset resolution */
969 2, /* repeat count */
970 DI_SYNC_VSYNC, /* CNT_CLR_SEL */
971 0, /* CNT_POLARITY_GEN_EN */
972 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
973 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
974 0, /* COUNT UP */
975 0 /* COUNT DOWN */
976 );
977
978 /* Active Line */
979 ipu_di_sync_config(
980 disp, /* display */
981 5, /* counter */
982 0, /* run count */
983 DI_SYNC_HSYNC, /* run_resolution */
984 0, /* offset */
985 DI_SYNC_NONE, /* offset resolution */
986 height / 2, /* repeat count */
987 4, /* CNT_CLR_SEL */
988 0, /* CNT_POLARITY_GEN_EN */
989 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
990 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
991 0, /* COUNT UP */
992 0 /* COUNT DOWN */
993 );
994
995 /* Field 0 VSYNC waveform */
996 ipu_di_sync_config(
997 disp, /* display */
998 6, /* counter */
999 v_total - 1, /* run count */
1000 DI_SYNC_HSYNC, /* run_resolution */
1001 0, /* offset */
1002 DI_SYNC_NONE, /* offset resolution */
1003 0, /* repeat count */
1004 DI_SYNC_NONE, /* CNT_CLR_SEL */
1005 0, /* CNT_POLARITY_GEN_EN */
1006 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
1007 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
1008 0, /* COUNT UP */
1009 0 /* COUNT DOWN */
1010 );
1011
1012 /* DC VSYNC waveform */
1013 vsync_cnt = 7;
1014 ipu_di_sync_config(
1015 disp, /* display */
1016 7, /* counter */
1017 v_total / 2 - 1,/* run count */
1018 DI_SYNC_HSYNC, /* run_resolution */
1019 9, /* offset */
1020 DI_SYNC_HSYNC, /* offset resolution */
1021 2, /* repeat count */
1022 DI_SYNC_VSYNC, /* CNT_CLR_SEL */
1023 0, /* CNT_POLARITY_GEN_EN */
1024 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
1025 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
1026 0, /* COUNT UP */
1027 0 /* COUNT DOWN */
1028 );
1029
1030 /* active pixel waveform */
1031 ipu_di_sync_config(
1032 disp, /* display */
1033 8, /* counter */
1034 0, /* run count */
1035 DI_SYNC_CLK, /* run_resolution */
1036 h_start_width, /* offset */
1037 DI_SYNC_CLK, /* offset resolution */
1038 width, /* repeat count */
1039 5, /* CNT_CLR_SEL */
1040 0, /* CNT_POLARITY_GEN_EN */
1041 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
1042 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
1043 0, /* COUNT UP */
1044 0 /* COUNT DOWN */
1045 );
1046
1047 ipu_di_sync_config(
1048 disp, /* display */
1049 9, /* counter */
1050 v_total - 1, /* run count */
1051 DI_SYNC_INT_HSYNC,/* run_resolution */
1052 v_total / 2, /* offset */
1053 DI_SYNC_INT_HSYNC,/* offset resolution */
1054 0, /* repeat count */
1055 DI_SYNC_HSYNC, /* CNT_CLR_SEL */
1056 0, /* CNT_POLARITY_GEN_EN */
1057 DI_SYNC_NONE, /* CNT_POLARITY_CLR_SEL */
1058 DI_SYNC_NONE, /* CNT_POLARITY_TRIGGER_SEL */
1059 0, /* COUNT UP */
1060 4 /* COUNT DOWN */
1061 );
1062
1063 /* set gentime select and tag sel */
1064 reg = __raw_readl(DI_SW_GEN1(disp, 9));
1065 reg &= 0x1FFFFFFF;
1066 reg |= (3 - 1)<<29 | 0x00008000;
1067 __raw_writel(reg, DI_SW_GEN1(disp, 9));
1068
1069 __raw_writel(v_total / 2 - 1, DI_SCR_CONF(disp));
1070
1071 /* set y_sel = 1 */
1072 di_gen |= 0x10000000;
1073 di_gen |= DI_GEN_POLARITY_5;
1074 di_gen |= DI_GEN_POLARITY_8;
1075 } else {
1076 /* Setup internal HSYNC waveform */
1077 ipu_di_sync_config(disp, 1, h_total - 1, DI_SYNC_CLK,
1078 0, DI_SYNC_NONE, 0, DI_SYNC_NONE,
1079 0, DI_SYNC_NONE,
1080 DI_SYNC_NONE, 0, 0);
1081
1082 /* Setup external (delayed) HSYNC waveform */
1083 ipu_di_sync_config(disp, DI_SYNC_HSYNC, h_total - 1,
1084 DI_SYNC_CLK, div * v_to_h_sync, DI_SYNC_CLK,
1085 0, DI_SYNC_NONE, 1, DI_SYNC_NONE,
1086 DI_SYNC_CLK, 0, h_sync_width * 2);
1087 /* Setup VSYNC waveform */
1088 vsync_cnt = DI_SYNC_VSYNC;
1089 ipu_di_sync_config(disp, DI_SYNC_VSYNC, v_total - 1,
1090 DI_SYNC_INT_HSYNC, 0, DI_SYNC_NONE, 0,
1091 DI_SYNC_NONE, 1, DI_SYNC_NONE,
1092 DI_SYNC_INT_HSYNC, 0, v_sync_width * 2);
1093 __raw_writel(v_total - 1, DI_SCR_CONF(disp));
1094
1095 /* Setup active data waveform to sync with DC */
1096 ipu_di_sync_config(disp, 4, 0, DI_SYNC_HSYNC,
1097 v_sync_width + v_start_width, DI_SYNC_HSYNC,
1098 height,
1099 DI_SYNC_VSYNC, 0, DI_SYNC_NONE,
1100 DI_SYNC_NONE, 0, 0);
1101 ipu_di_sync_config(disp, 5, 0, DI_SYNC_CLK,
1102 h_sync_width + h_start_width, DI_SYNC_CLK,
1103 width, 4, 0, DI_SYNC_NONE, DI_SYNC_NONE, 0,
1104 0);
1105
1106 /* reset all unused counters */
1107 __raw_writel(0, DI_SW_GEN0(disp, 6));
1108 __raw_writel(0, DI_SW_GEN1(disp, 6));
1109 __raw_writel(0, DI_SW_GEN0(disp, 7));
1110 __raw_writel(0, DI_SW_GEN1(disp, 7));
1111 __raw_writel(0, DI_SW_GEN0(disp, 8));
1112 __raw_writel(0, DI_SW_GEN1(disp, 8));
1113 __raw_writel(0, DI_SW_GEN0(disp, 9));
1114 __raw_writel(0, DI_SW_GEN1(disp, 9));
1115
1116 reg = __raw_readl(DI_STP_REP(disp, 6));
1117 reg &= 0x0000FFFF;
1118 __raw_writel(reg, DI_STP_REP(disp, 6));
1119 __raw_writel(0, DI_STP_REP(disp, 7));
1120 __raw_writel(0, DI_STP_REP9(disp));
1121
1122 /* Init template microcode */
1123 if (disp) {
1124 ipu_dc_write_tmpl(2, WROD(0), 0, map, SYNC_WAVE, 8, 5);
1125 ipu_dc_write_tmpl(3, WROD(0), 0, map, SYNC_WAVE, 4, 5);
1126 ipu_dc_write_tmpl(4, WROD(0), 0, map, SYNC_WAVE, 0, 5);
1127 } else {
1128 ipu_dc_write_tmpl(5, WROD(0), 0, map, SYNC_WAVE, 8, 5);
1129 ipu_dc_write_tmpl(6, WROD(0), 0, map, SYNC_WAVE, 4, 5);
1130 ipu_dc_write_tmpl(7, WROD(0), 0, map, SYNC_WAVE, 0, 5);
1131 }
1132
1133 if (sig.Hsync_pol)
1134 di_gen |= DI_GEN_POLARITY_2;
1135 if (sig.Vsync_pol)
1136 di_gen |= DI_GEN_POLARITY_3;
1137
1138 if (!sig.clk_pol)
1139 di_gen |= DI_GEN_POL_CLK;
1140
1141 }
1142
1143 __raw_writel(di_gen, DI_GENERAL(disp));
1144
1145 __raw_writel((--vsync_cnt << DI_VSYNC_SEL_OFFSET) |
1146 0x00000002, DI_SYNC_AS_GEN(disp));
1147
1148 reg = __raw_readl(DI_POL(disp));
1149 reg &= ~(DI_POL_DRDY_DATA_POLARITY | DI_POL_DRDY_POLARITY_15);
1150 if (sig.enable_pol)
1151 reg |= DI_POL_DRDY_POLARITY_15;
1152 if (sig.data_pol)
1153 reg |= DI_POL_DRDY_DATA_POLARITY;
1154 __raw_writel(reg, DI_POL(disp));
1155
1156 __raw_writel(width, DC_DISP_CONF2(DC_DISP_ID_SYNC(disp)));
1157
1158 return 0;
1159 }
1160
1161 /*
1162 * This function sets the foreground and background plane global alpha blending
1163 * modes. This function also sets the DP graphic plane according to the
1164 * parameter of IPUv3 DP channel.
1165 *
1166 * @param channel IPUv3 DP channel
1167 *
1168 * @param enable Boolean to enable or disable global alpha
1169 * blending. If disabled, local blending is used.
1170 *
1171 * @param alpha Global alpha value.
1172 *
1173 * @return Returns 0 on success or negative error code on fail
1174 */
1175 int32_t ipu_disp_set_global_alpha(ipu_channel_t channel, unsigned char enable,
1176 uint8_t alpha)
1177 {
1178 uint32_t reg;
1179
1180 unsigned char bg_chan;
1181
1182 if (!((channel == MEM_BG_SYNC || channel == MEM_FG_SYNC) ||
1183 (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0) ||
1184 (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)))
1185 return -EINVAL;
1186
1187 if (channel == MEM_BG_SYNC || channel == MEM_BG_ASYNC0 ||
1188 channel == MEM_BG_ASYNC1)
1189 bg_chan = 1;
1190 else
1191 bg_chan = 0;
1192
1193 if (!g_ipu_clk_enabled)
1194 clk_enable(g_ipu_clk);
1195
1196 if (bg_chan) {
1197 reg = __raw_readl(DP_COM_CONF());
1198 __raw_writel(reg & ~DP_COM_CONF_GWSEL, DP_COM_CONF());
1199 } else {
1200 reg = __raw_readl(DP_COM_CONF());
1201 __raw_writel(reg | DP_COM_CONF_GWSEL, DP_COM_CONF());
1202 }
1203
1204 if (enable) {
1205 reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0x00FFFFFFL;
1206 __raw_writel(reg | ((uint32_t) alpha << 24),
1207 DP_GRAPH_WIND_CTRL());
1208
1209 reg = __raw_readl(DP_COM_CONF());
1210 __raw_writel(reg | DP_COM_CONF_GWAM, DP_COM_CONF());
1211 } else {
1212 reg = __raw_readl(DP_COM_CONF());
1213 __raw_writel(reg & ~DP_COM_CONF_GWAM, DP_COM_CONF());
1214 }
1215
1216 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
1217 __raw_writel(reg, IPU_SRM_PRI2);
1218
1219 if (!g_ipu_clk_enabled)
1220 clk_disable(g_ipu_clk);
1221
1222 return 0;
1223 }
1224
1225 /*
1226 * This function sets the transparent color key for SDC graphic plane.
1227 *
1228 * @param channel Input parameter for the logical channel ID.
1229 *
1230 * @param enable Boolean to enable or disable color key
1231 *
1232 * @param colorKey 24-bit RGB color for transparent color key.
1233 *
1234 * @return Returns 0 on success or negative error code on fail
1235 */
1236 int32_t ipu_disp_set_color_key(ipu_channel_t channel, unsigned char enable,
1237 uint32_t color_key)
1238 {
1239 uint32_t reg;
1240 int y, u, v;
1241 int red, green, blue;
1242
1243 if (!((channel == MEM_BG_SYNC || channel == MEM_FG_SYNC) ||
1244 (channel == MEM_BG_ASYNC0 || channel == MEM_FG_ASYNC0) ||
1245 (channel == MEM_BG_ASYNC1 || channel == MEM_FG_ASYNC1)))
1246 return -EINVAL;
1247
1248 if (!g_ipu_clk_enabled)
1249 clk_enable(g_ipu_clk);
1250
1251 color_key_4rgb = 1;
1252 /* Transform color key from rgb to yuv if CSC is enabled */
1253 if (((fg_csc_type == RGB2YUV) && (bg_csc_type == YUV2YUV)) ||
1254 ((fg_csc_type == YUV2YUV) && (bg_csc_type == RGB2YUV)) ||
1255 ((fg_csc_type == YUV2YUV) && (bg_csc_type == YUV2YUV)) ||
1256 ((fg_csc_type == YUV2RGB) && (bg_csc_type == YUV2RGB))) {
1257
1258 debug("color key 0x%x need change to yuv fmt\n", color_key);
1259
1260 red = (color_key >> 16) & 0xFF;
1261 green = (color_key >> 8) & 0xFF;
1262 blue = color_key & 0xFF;
1263
1264 y = rgb_to_yuv(0, red, green, blue);
1265 u = rgb_to_yuv(1, red, green, blue);
1266 v = rgb_to_yuv(2, red, green, blue);
1267 color_key = (y << 16) | (u << 8) | v;
1268
1269 color_key_4rgb = 0;
1270
1271 debug("color key change to yuv fmt 0x%x\n", color_key);
1272 }
1273
1274 if (enable) {
1275 reg = __raw_readl(DP_GRAPH_WIND_CTRL()) & 0xFF000000L;
1276 __raw_writel(reg | color_key, DP_GRAPH_WIND_CTRL());
1277
1278 reg = __raw_readl(DP_COM_CONF());
1279 __raw_writel(reg | DP_COM_CONF_GWCKE, DP_COM_CONF());
1280 } else {
1281 reg = __raw_readl(DP_COM_CONF());
1282 __raw_writel(reg & ~DP_COM_CONF_GWCKE, DP_COM_CONF());
1283 }
1284
1285 reg = __raw_readl(IPU_SRM_PRI2) | 0x8;
1286 __raw_writel(reg, IPU_SRM_PRI2);
1287
1288 if (!g_ipu_clk_enabled)
1289 clk_disable(g_ipu_clk);
1290
1291 return 0;
1292 }
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