2 * Copyright (C) 2012-2014 Mentor Graphics Inc.
3 * Copyright 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved.
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:
9 * http://www.opensource.org/licenses/gpl-license.html
10 * http://www.gnu.org/copyleft/gpl.html
13 #include <linux/types.h>
14 #include <linux/init.h>
15 #include <linux/errno.h>
16 #include <linux/spinlock.h>
17 #include <linux/bitrev.h>
19 #include <linux/err.h>
20 #include <linux/sizes.h>
23 /* IC Register Offsets */
24 #define IC_CONF 0x0000
25 #define IC_PRP_ENC_RSC 0x0004
26 #define IC_PRP_VF_RSC 0x0008
27 #define IC_PP_RSC 0x000C
28 #define IC_CMBP_1 0x0010
29 #define IC_CMBP_2 0x0014
30 #define IC_IDMAC_1 0x0018
31 #define IC_IDMAC_2 0x001C
32 #define IC_IDMAC_3 0x0020
33 #define IC_IDMAC_4 0x0024
35 /* IC Register Fields */
36 #define IC_CONF_PRPENC_EN (1 << 0)
37 #define IC_CONF_PRPENC_CSC1 (1 << 1)
38 #define IC_CONF_PRPENC_ROT_EN (1 << 2)
39 #define IC_CONF_PRPVF_EN (1 << 8)
40 #define IC_CONF_PRPVF_CSC1 (1 << 9)
41 #define IC_CONF_PRPVF_CSC2 (1 << 10)
42 #define IC_CONF_PRPVF_CMB (1 << 11)
43 #define IC_CONF_PRPVF_ROT_EN (1 << 12)
44 #define IC_CONF_PP_EN (1 << 16)
45 #define IC_CONF_PP_CSC1 (1 << 17)
46 #define IC_CONF_PP_CSC2 (1 << 18)
47 #define IC_CONF_PP_CMB (1 << 19)
48 #define IC_CONF_PP_ROT_EN (1 << 20)
49 #define IC_CONF_IC_GLB_LOC_A (1 << 28)
50 #define IC_CONF_KEY_COLOR_EN (1 << 29)
51 #define IC_CONF_RWS_EN (1 << 30)
52 #define IC_CONF_CSI_MEM_WR_EN (1 << 31)
54 #define IC_IDMAC_1_CB0_BURST_16 (1 << 0)
55 #define IC_IDMAC_1_CB1_BURST_16 (1 << 1)
56 #define IC_IDMAC_1_CB2_BURST_16 (1 << 2)
57 #define IC_IDMAC_1_CB3_BURST_16 (1 << 3)
58 #define IC_IDMAC_1_CB4_BURST_16 (1 << 4)
59 #define IC_IDMAC_1_CB5_BURST_16 (1 << 5)
60 #define IC_IDMAC_1_CB6_BURST_16 (1 << 6)
61 #define IC_IDMAC_1_CB7_BURST_16 (1 << 7)
62 #define IC_IDMAC_1_PRPENC_ROT_MASK (0x7 << 11)
63 #define IC_IDMAC_1_PRPENC_ROT_OFFSET 11
64 #define IC_IDMAC_1_PRPVF_ROT_MASK (0x7 << 14)
65 #define IC_IDMAC_1_PRPVF_ROT_OFFSET 14
66 #define IC_IDMAC_1_PP_ROT_MASK (0x7 << 17)
67 #define IC_IDMAC_1_PP_ROT_OFFSET 17
68 #define IC_IDMAC_1_PP_FLIP_RS (1 << 22)
69 #define IC_IDMAC_1_PRPVF_FLIP_RS (1 << 21)
70 #define IC_IDMAC_1_PRPENC_FLIP_RS (1 << 20)
72 #define IC_IDMAC_2_PRPENC_HEIGHT_MASK (0x3ff << 0)
73 #define IC_IDMAC_2_PRPENC_HEIGHT_OFFSET 0
74 #define IC_IDMAC_2_PRPVF_HEIGHT_MASK (0x3ff << 10)
75 #define IC_IDMAC_2_PRPVF_HEIGHT_OFFSET 10
76 #define IC_IDMAC_2_PP_HEIGHT_MASK (0x3ff << 20)
77 #define IC_IDMAC_2_PP_HEIGHT_OFFSET 20
79 #define IC_IDMAC_3_PRPENC_WIDTH_MASK (0x3ff << 0)
80 #define IC_IDMAC_3_PRPENC_WIDTH_OFFSET 0
81 #define IC_IDMAC_3_PRPVF_WIDTH_MASK (0x3ff << 10)
82 #define IC_IDMAC_3_PRPVF_WIDTH_OFFSET 10
83 #define IC_IDMAC_3_PP_WIDTH_MASK (0x3ff << 20)
84 #define IC_IDMAC_3_PP_WIDTH_OFFSET 20
86 struct ic_task_regoffs {
91 struct ic_task_bitfields {
97 u32 ic_cmb_galpha_bit;
100 static const struct ic_task_regoffs ic_task_reg[IC_NUM_TASKS] = {
101 [IC_TASK_ENCODER] = {
102 .rsc = IC_PRP_ENC_RSC,
103 .tpmem_csc = {0x2008, 0},
105 [IC_TASK_VIEWFINDER] = {
106 .rsc = IC_PRP_VF_RSC,
107 .tpmem_csc = {0x4028, 0x4040},
109 [IC_TASK_POST_PROCESSOR] = {
111 .tpmem_csc = {0x6060, 0x6078},
115 static const struct ic_task_bitfields ic_task_bit[IC_NUM_TASKS] = {
116 [IC_TASK_ENCODER] = {
117 .ic_conf_en = IC_CONF_PRPENC_EN,
118 .ic_conf_rot_en = IC_CONF_PRPENC_ROT_EN,
119 .ic_conf_cmb_en = 0, /* NA */
120 .ic_conf_csc1_en = IC_CONF_PRPENC_CSC1,
121 .ic_conf_csc2_en = 0, /* NA */
122 .ic_cmb_galpha_bit = 0, /* NA */
124 [IC_TASK_VIEWFINDER] = {
125 .ic_conf_en = IC_CONF_PRPVF_EN,
126 .ic_conf_rot_en = IC_CONF_PRPVF_ROT_EN,
127 .ic_conf_cmb_en = IC_CONF_PRPVF_CMB,
128 .ic_conf_csc1_en = IC_CONF_PRPVF_CSC1,
129 .ic_conf_csc2_en = IC_CONF_PRPVF_CSC2,
130 .ic_cmb_galpha_bit = 0,
132 [IC_TASK_POST_PROCESSOR] = {
133 .ic_conf_en = IC_CONF_PP_EN,
134 .ic_conf_rot_en = IC_CONF_PP_ROT_EN,
135 .ic_conf_cmb_en = IC_CONF_PP_CMB,
136 .ic_conf_csc1_en = IC_CONF_PP_CSC1,
137 .ic_conf_csc2_en = IC_CONF_PP_CSC2,
138 .ic_cmb_galpha_bit = 8,
145 enum ipu_ic_task task;
146 const struct ic_task_regoffs *reg;
147 const struct ic_task_bitfields *bit;
149 enum ipu_color_space in_cs, g_in_cs;
150 enum ipu_color_space out_cs;
155 struct ipu_ic_priv *priv;
160 void __iomem *tpmem_base;
165 struct ipu_ic task[IC_NUM_TASKS];
168 static inline u32 ipu_ic_read(struct ipu_ic *ic, unsigned offset)
170 return readl(ic->priv->base + offset);
173 static inline void ipu_ic_write(struct ipu_ic *ic, u32 value, unsigned offset)
175 writel(value, ic->priv->base + offset);
178 struct ic_csc_params {
179 s16 coeff[3][3]; /* signed 9-bit integer coefficients */
180 s16 offset[3]; /* signed 11+2-bit fixed point offset */
181 u8 scale:2; /* scale coefficients * 2^(scale-1) */
182 bool sat:1; /* saturate to (16, 235(Y) / 240(U, V)) */
186 * Y = R * .299 + G * .587 + B * .114;
187 * U = R * -.169 + G * -.332 + B * .500 + 128.;
188 * V = R * .500 + G * -.419 + B * -.0813 + 128.;
190 static const struct ic_csc_params ic_csc_rgb2ycbcr = {
196 .offset = { 0, 512, 512 },
200 /* transparent RGB->RGB matrix for graphics combining */
201 static const struct ic_csc_params ic_csc_rgb2rgb = {
211 * R = (1.164 * (Y - 16)) + (1.596 * (Cr - 128));
212 * G = (1.164 * (Y - 16)) - (0.392 * (Cb - 128)) - (0.813 * (Cr - 128));
213 * B = (1.164 * (Y - 16)) + (2.017 * (Cb - 128);
215 static const struct ic_csc_params ic_csc_ycbcr2rgb = {
221 .offset = { -446, 266, -554 },
225 static int init_csc(struct ipu_ic *ic,
226 enum ipu_color_space inf,
227 enum ipu_color_space outf,
230 struct ipu_ic_priv *priv = ic->priv;
231 const struct ic_csc_params *params;
237 base = (u32 __iomem *)
238 (priv->tpmem_base + ic->reg->tpmem_csc[csc_index]);
240 if (inf == IPUV3_COLORSPACE_YUV && outf == IPUV3_COLORSPACE_RGB)
241 params = &ic_csc_ycbcr2rgb;
242 else if (inf == IPUV3_COLORSPACE_RGB && outf == IPUV3_COLORSPACE_YUV)
243 params = &ic_csc_rgb2ycbcr;
244 else if (inf == IPUV3_COLORSPACE_RGB && outf == IPUV3_COLORSPACE_RGB)
245 params = &ic_csc_rgb2rgb;
247 dev_err(priv->ipu->dev, "Unsupported color space conversion\n");
251 /* Cast to unsigned */
252 c = (const u16 (*)[3])params->coeff;
253 a = (const u16 *)params->offset;
255 param = ((a[0] & 0x1f) << 27) | ((c[0][0] & 0x1ff) << 18) |
256 ((c[1][1] & 0x1ff) << 9) | (c[2][2] & 0x1ff);
257 writel(param, base++);
259 param = ((a[0] & 0x1fe0) >> 5) | (params->scale << 8) |
261 writel(param, base++);
263 param = ((a[1] & 0x1f) << 27) | ((c[0][1] & 0x1ff) << 18) |
264 ((c[1][0] & 0x1ff) << 9) | (c[2][0] & 0x1ff);
265 writel(param, base++);
267 param = ((a[1] & 0x1fe0) >> 5);
268 writel(param, base++);
270 param = ((a[2] & 0x1f) << 27) | ((c[0][2] & 0x1ff) << 18) |
271 ((c[1][2] & 0x1ff) << 9) | (c[2][1] & 0x1ff);
272 writel(param, base++);
274 param = ((a[2] & 0x1fe0) >> 5);
275 writel(param, base++);
280 static int calc_resize_coeffs(struct ipu_ic *ic,
281 u32 in_size, u32 out_size,
285 struct ipu_ic_priv *priv = ic->priv;
286 struct ipu_soc *ipu = priv->ipu;
287 u32 temp_size, temp_downsize;
290 * Input size cannot be more than 4096, and output size cannot
293 if (in_size > 4096) {
294 dev_err(ipu->dev, "Unsupported resize (in_size > 4096)\n");
297 if (out_size > 1024) {
298 dev_err(ipu->dev, "Unsupported resize (out_size > 1024)\n");
302 /* Cannot downsize more than 4:1 */
303 if ((out_size << 2) < in_size) {
304 dev_err(ipu->dev, "Unsupported downsize\n");
308 /* Compute downsizing coefficient */
311 while (((temp_size > 1024) || (temp_size >= out_size * 2)) &&
312 (temp_downsize < 2)) {
316 *downsize_coeff = temp_downsize;
319 * compute resizing coefficient using the following equation:
320 * resize_coeff = M * (SI - 1) / (SO - 1)
321 * where M = 2^13, SI = input size, SO = output size
323 *resize_coeff = (8192L * (temp_size - 1)) / (out_size - 1);
324 if (*resize_coeff >= 16384L) {
325 dev_err(ipu->dev, "Warning! Overflow on resize coeff.\n");
326 *resize_coeff = 0x3FFF;
332 void ipu_ic_task_enable(struct ipu_ic *ic)
334 struct ipu_ic_priv *priv = ic->priv;
338 spin_lock_irqsave(&priv->lock, flags);
340 ic_conf = ipu_ic_read(ic, IC_CONF);
342 ic_conf |= ic->bit->ic_conf_en;
345 ic_conf |= ic->bit->ic_conf_rot_en;
347 if (ic->in_cs != ic->out_cs)
348 ic_conf |= ic->bit->ic_conf_csc1_en;
351 ic_conf |= ic->bit->ic_conf_cmb_en;
352 ic_conf |= ic->bit->ic_conf_csc1_en;
354 if (ic->g_in_cs != ic->out_cs)
355 ic_conf |= ic->bit->ic_conf_csc2_en;
358 ipu_ic_write(ic, ic_conf, IC_CONF);
360 spin_unlock_irqrestore(&priv->lock, flags);
362 EXPORT_SYMBOL_GPL(ipu_ic_task_enable);
364 void ipu_ic_task_disable(struct ipu_ic *ic)
366 struct ipu_ic_priv *priv = ic->priv;
370 spin_lock_irqsave(&priv->lock, flags);
372 ic_conf = ipu_ic_read(ic, IC_CONF);
374 ic_conf &= ~(ic->bit->ic_conf_en |
375 ic->bit->ic_conf_csc1_en |
376 ic->bit->ic_conf_rot_en);
377 if (ic->bit->ic_conf_csc2_en)
378 ic_conf &= ~ic->bit->ic_conf_csc2_en;
379 if (ic->bit->ic_conf_cmb_en)
380 ic_conf &= ~ic->bit->ic_conf_cmb_en;
382 ipu_ic_write(ic, ic_conf, IC_CONF);
384 spin_unlock_irqrestore(&priv->lock, flags);
386 EXPORT_SYMBOL_GPL(ipu_ic_task_disable);
388 int ipu_ic_task_graphics_init(struct ipu_ic *ic,
389 enum ipu_color_space in_g_cs,
390 bool galpha_en, u32 galpha,
391 bool colorkey_en, u32 colorkey)
393 struct ipu_ic_priv *priv = ic->priv;
398 if (ic->task == IC_TASK_ENCODER)
401 spin_lock_irqsave(&priv->lock, flags);
403 ic_conf = ipu_ic_read(ic, IC_CONF);
405 if (!(ic_conf & ic->bit->ic_conf_csc1_en)) {
406 /* need transparent CSC1 conversion */
407 ret = init_csc(ic, IPUV3_COLORSPACE_RGB,
408 IPUV3_COLORSPACE_RGB, 0);
413 ic->g_in_cs = in_g_cs;
415 if (ic->g_in_cs != ic->out_cs) {
416 ret = init_csc(ic, ic->g_in_cs, ic->out_cs, 1);
422 ic_conf |= IC_CONF_IC_GLB_LOC_A;
423 reg = ipu_ic_read(ic, IC_CMBP_1);
424 reg &= ~(0xff << ic->bit->ic_cmb_galpha_bit);
425 reg |= (galpha << ic->bit->ic_cmb_galpha_bit);
426 ipu_ic_write(ic, reg, IC_CMBP_1);
428 ic_conf &= ~IC_CONF_IC_GLB_LOC_A;
431 ic_conf |= IC_CONF_KEY_COLOR_EN;
432 ipu_ic_write(ic, colorkey, IC_CMBP_2);
434 ic_conf &= ~IC_CONF_KEY_COLOR_EN;
436 ipu_ic_write(ic, ic_conf, IC_CONF);
440 spin_unlock_irqrestore(&priv->lock, flags);
443 EXPORT_SYMBOL_GPL(ipu_ic_task_graphics_init);
445 int ipu_ic_task_init_rsc(struct ipu_ic *ic,
446 int in_width, int in_height,
447 int out_width, int out_height,
448 enum ipu_color_space in_cs,
449 enum ipu_color_space out_cs,
452 struct ipu_ic_priv *priv = ic->priv;
453 u32 downsize_coeff, resize_coeff;
458 /* Setup vertical resizing */
460 ret = calc_resize_coeffs(ic, in_height, out_height,
461 &resize_coeff, &downsize_coeff);
465 rsc = (downsize_coeff << 30) | (resize_coeff << 16);
467 /* Setup horizontal resizing */
468 ret = calc_resize_coeffs(ic, in_width, out_width,
469 &resize_coeff, &downsize_coeff);
473 rsc |= (downsize_coeff << 14) | resize_coeff;
476 spin_lock_irqsave(&priv->lock, flags);
478 ipu_ic_write(ic, rsc, ic->reg->rsc);
480 /* Setup color space conversion */
484 if (ic->in_cs != ic->out_cs) {
485 ret = init_csc(ic, ic->in_cs, ic->out_cs, 0);
491 spin_unlock_irqrestore(&priv->lock, flags);
495 int ipu_ic_task_init(struct ipu_ic *ic,
496 int in_width, int in_height,
497 int out_width, int out_height,
498 enum ipu_color_space in_cs,
499 enum ipu_color_space out_cs)
501 return ipu_ic_task_init_rsc(ic, in_width, in_height, out_width,
502 out_height, in_cs, out_cs, 0);
504 EXPORT_SYMBOL_GPL(ipu_ic_task_init);
506 int ipu_ic_task_idma_init(struct ipu_ic *ic, struct ipuv3_channel *channel,
507 u32 width, u32 height, int burst_size,
508 enum ipu_rotate_mode rot)
510 struct ipu_ic_priv *priv = ic->priv;
511 struct ipu_soc *ipu = priv->ipu;
512 u32 ic_idmac_1, ic_idmac_2, ic_idmac_3;
513 u32 temp_rot = bitrev8(rot) >> 5;
514 bool need_hor_flip = false;
518 if ((burst_size != 8) && (burst_size != 16)) {
519 dev_err(ipu->dev, "Illegal burst length for IC\n");
526 if (temp_rot & 0x2) /* Need horizontal flip */
527 need_hor_flip = true;
529 spin_lock_irqsave(&priv->lock, flags);
531 ic_idmac_1 = ipu_ic_read(ic, IC_IDMAC_1);
532 ic_idmac_2 = ipu_ic_read(ic, IC_IDMAC_2);
533 ic_idmac_3 = ipu_ic_read(ic, IC_IDMAC_3);
535 switch (channel->num) {
536 case IPUV3_CHANNEL_IC_PP_MEM:
537 if (burst_size == 16)
538 ic_idmac_1 |= IC_IDMAC_1_CB2_BURST_16;
540 ic_idmac_1 &= ~IC_IDMAC_1_CB2_BURST_16;
543 ic_idmac_1 |= IC_IDMAC_1_PP_FLIP_RS;
545 ic_idmac_1 &= ~IC_IDMAC_1_PP_FLIP_RS;
547 ic_idmac_2 &= ~IC_IDMAC_2_PP_HEIGHT_MASK;
548 ic_idmac_2 |= height << IC_IDMAC_2_PP_HEIGHT_OFFSET;
550 ic_idmac_3 &= ~IC_IDMAC_3_PP_WIDTH_MASK;
551 ic_idmac_3 |= width << IC_IDMAC_3_PP_WIDTH_OFFSET;
553 case IPUV3_CHANNEL_MEM_IC_PP:
554 if (burst_size == 16)
555 ic_idmac_1 |= IC_IDMAC_1_CB5_BURST_16;
557 ic_idmac_1 &= ~IC_IDMAC_1_CB5_BURST_16;
559 case IPUV3_CHANNEL_MEM_ROT_PP:
560 ic_idmac_1 &= ~IC_IDMAC_1_PP_ROT_MASK;
561 ic_idmac_1 |= temp_rot << IC_IDMAC_1_PP_ROT_OFFSET;
563 case IPUV3_CHANNEL_MEM_IC_PRP_VF:
564 if (burst_size == 16)
565 ic_idmac_1 |= IC_IDMAC_1_CB6_BURST_16;
567 ic_idmac_1 &= ~IC_IDMAC_1_CB6_BURST_16;
569 case IPUV3_CHANNEL_IC_PRP_ENC_MEM:
570 if (burst_size == 16)
571 ic_idmac_1 |= IC_IDMAC_1_CB0_BURST_16;
573 ic_idmac_1 &= ~IC_IDMAC_1_CB0_BURST_16;
576 ic_idmac_1 |= IC_IDMAC_1_PRPENC_FLIP_RS;
578 ic_idmac_1 &= ~IC_IDMAC_1_PRPENC_FLIP_RS;
580 ic_idmac_2 &= ~IC_IDMAC_2_PRPENC_HEIGHT_MASK;
581 ic_idmac_2 |= height << IC_IDMAC_2_PRPENC_HEIGHT_OFFSET;
583 ic_idmac_3 &= ~IC_IDMAC_3_PRPENC_WIDTH_MASK;
584 ic_idmac_3 |= width << IC_IDMAC_3_PRPENC_WIDTH_OFFSET;
586 case IPUV3_CHANNEL_MEM_ROT_ENC:
587 ic_idmac_1 &= ~IC_IDMAC_1_PRPENC_ROT_MASK;
588 ic_idmac_1 |= temp_rot << IC_IDMAC_1_PRPENC_ROT_OFFSET;
590 case IPUV3_CHANNEL_IC_PRP_VF_MEM:
591 if (burst_size == 16)
592 ic_idmac_1 |= IC_IDMAC_1_CB1_BURST_16;
594 ic_idmac_1 &= ~IC_IDMAC_1_CB1_BURST_16;
597 ic_idmac_1 |= IC_IDMAC_1_PRPVF_FLIP_RS;
599 ic_idmac_1 &= ~IC_IDMAC_1_PRPVF_FLIP_RS;
601 ic_idmac_2 &= ~IC_IDMAC_2_PRPVF_HEIGHT_MASK;
602 ic_idmac_2 |= height << IC_IDMAC_2_PRPVF_HEIGHT_OFFSET;
604 ic_idmac_3 &= ~IC_IDMAC_3_PRPVF_WIDTH_MASK;
605 ic_idmac_3 |= width << IC_IDMAC_3_PRPVF_WIDTH_OFFSET;
607 case IPUV3_CHANNEL_MEM_ROT_VF:
608 ic_idmac_1 &= ~IC_IDMAC_1_PRPVF_ROT_MASK;
609 ic_idmac_1 |= temp_rot << IC_IDMAC_1_PRPVF_ROT_OFFSET;
611 case IPUV3_CHANNEL_G_MEM_IC_PRP_VF:
612 if (burst_size == 16)
613 ic_idmac_1 |= IC_IDMAC_1_CB3_BURST_16;
615 ic_idmac_1 &= ~IC_IDMAC_1_CB3_BURST_16;
617 case IPUV3_CHANNEL_G_MEM_IC_PP:
618 if (burst_size == 16)
619 ic_idmac_1 |= IC_IDMAC_1_CB4_BURST_16;
621 ic_idmac_1 &= ~IC_IDMAC_1_CB4_BURST_16;
623 case IPUV3_CHANNEL_VDI_MEM_IC_VF:
624 if (burst_size == 16)
625 ic_idmac_1 |= IC_IDMAC_1_CB7_BURST_16;
627 ic_idmac_1 &= ~IC_IDMAC_1_CB7_BURST_16;
633 ipu_ic_write(ic, ic_idmac_1, IC_IDMAC_1);
634 ipu_ic_write(ic, ic_idmac_2, IC_IDMAC_2);
635 ipu_ic_write(ic, ic_idmac_3, IC_IDMAC_3);
637 if (ipu_rot_mode_is_irt(rot))
641 spin_unlock_irqrestore(&priv->lock, flags);
644 EXPORT_SYMBOL_GPL(ipu_ic_task_idma_init);
646 static void ipu_irt_enable(struct ipu_ic *ic)
648 struct ipu_ic_priv *priv = ic->priv;
650 if (!priv->irt_use_count)
651 ipu_module_enable(priv->ipu, IPU_CONF_ROT_EN);
653 priv->irt_use_count++;
656 static void ipu_irt_disable(struct ipu_ic *ic)
658 struct ipu_ic_priv *priv = ic->priv;
660 if (priv->irt_use_count) {
661 if (!--priv->irt_use_count)
662 ipu_module_disable(priv->ipu, IPU_CONF_ROT_EN);
666 int ipu_ic_enable(struct ipu_ic *ic)
668 struct ipu_ic_priv *priv = ic->priv;
671 spin_lock_irqsave(&priv->lock, flags);
673 if (!priv->use_count)
674 ipu_module_enable(priv->ipu, IPU_CONF_IC_EN);
681 spin_unlock_irqrestore(&priv->lock, flags);
685 EXPORT_SYMBOL_GPL(ipu_ic_enable);
687 int ipu_ic_disable(struct ipu_ic *ic)
689 struct ipu_ic_priv *priv = ic->priv;
692 spin_lock_irqsave(&priv->lock, flags);
696 if (!priv->use_count)
697 ipu_module_disable(priv->ipu, IPU_CONF_IC_EN);
699 if (priv->use_count < 0)
705 ic->rotation = ic->graphics = false;
707 spin_unlock_irqrestore(&priv->lock, flags);
711 EXPORT_SYMBOL_GPL(ipu_ic_disable);
713 struct ipu_ic *ipu_ic_get(struct ipu_soc *ipu, enum ipu_ic_task task)
715 struct ipu_ic_priv *priv = ipu->ic_priv;
717 struct ipu_ic *ic, *ret;
719 if (task >= IC_NUM_TASKS)
720 return ERR_PTR(-EINVAL);
722 ic = &priv->task[task];
724 spin_lock_irqsave(&priv->lock, flags);
727 ret = ERR_PTR(-EBUSY);
735 spin_unlock_irqrestore(&priv->lock, flags);
738 EXPORT_SYMBOL_GPL(ipu_ic_get);
740 void ipu_ic_put(struct ipu_ic *ic)
742 struct ipu_ic_priv *priv = ic->priv;
745 spin_lock_irqsave(&priv->lock, flags);
747 spin_unlock_irqrestore(&priv->lock, flags);
749 EXPORT_SYMBOL_GPL(ipu_ic_put);
751 int ipu_ic_init(struct ipu_soc *ipu, struct device *dev,
752 unsigned long base, unsigned long tpmem_base)
754 struct ipu_ic_priv *priv;
757 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
763 spin_lock_init(&priv->lock);
764 priv->base = devm_ioremap(dev, base, PAGE_SIZE);
767 priv->tpmem_base = devm_ioremap(dev, tpmem_base, SZ_64K);
768 if (!priv->tpmem_base)
771 dev_dbg(dev, "IC base: 0x%08lx remapped to %p\n", base, priv->base);
775 for (i = 0; i < IC_NUM_TASKS; i++) {
776 priv->task[i].task = i;
777 priv->task[i].priv = priv;
778 priv->task[i].reg = &ic_task_reg[i];
779 priv->task[i].bit = &ic_task_bit[i];
785 void ipu_ic_exit(struct ipu_soc *ipu)
789 void ipu_ic_dump(struct ipu_ic *ic)
791 struct ipu_ic_priv *priv = ic->priv;
792 struct ipu_soc *ipu = priv->ipu;
794 dev_dbg(ipu->dev, "IC_CONF = \t0x%08X\n",
795 ipu_ic_read(ic, IC_CONF));
796 dev_dbg(ipu->dev, "IC_PRP_ENC_RSC = \t0x%08X\n",
797 ipu_ic_read(ic, IC_PRP_ENC_RSC));
798 dev_dbg(ipu->dev, "IC_PRP_VF_RSC = \t0x%08X\n",
799 ipu_ic_read(ic, IC_PRP_VF_RSC));
800 dev_dbg(ipu->dev, "IC_PP_RSC = \t0x%08X\n",
801 ipu_ic_read(ic, IC_PP_RSC));
802 dev_dbg(ipu->dev, "IC_CMBP_1 = \t0x%08X\n",
803 ipu_ic_read(ic, IC_CMBP_1));
804 dev_dbg(ipu->dev, "IC_CMBP_2 = \t0x%08X\n",
805 ipu_ic_read(ic, IC_CMBP_2));
806 dev_dbg(ipu->dev, "IC_IDMAC_1 = \t0x%08X\n",
807 ipu_ic_read(ic, IC_IDMAC_1));
808 dev_dbg(ipu->dev, "IC_IDMAC_2 = \t0x%08X\n",
809 ipu_ic_read(ic, IC_IDMAC_2));
810 dev_dbg(ipu->dev, "IC_IDMAC_3 = \t0x%08X\n",
811 ipu_ic_read(ic, IC_IDMAC_3));
812 dev_dbg(ipu->dev, "IC_IDMAC_4 = \t0x%08X\n",
813 ipu_ic_read(ic, IC_IDMAC_4));
815 EXPORT_SYMBOL_GPL(ipu_ic_dump);