summaryrefslogtreecommitdiff
path: root/drivers/gpu/ipu-v3/ipu-ic.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/ipu-v3/ipu-ic.c')
-rw-r--r--drivers/gpu/ipu-v3/ipu-ic.c198
1 files changed, 43 insertions, 155 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-ic.c b/drivers/gpu/ipu-v3/ipu-ic.c
index 321eb983c2f5..acd76ecc5221 100644
--- a/drivers/gpu/ipu-v3/ipu-ic.c
+++ b/drivers/gpu/ipu-v3/ipu-ic.c
@@ -1,13 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2012-2014 Mentor Graphics Inc.
* Copyright 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/types.h>
@@ -17,6 +11,7 @@
#include <linux/bitrev.h>
#include <linux/io.h>
#include <linux/err.h>
+#include <linux/sizes.h>
#include "ipu-prv.h"
/* IC Register Offsets */
@@ -145,8 +140,10 @@ struct ipu_ic {
const struct ic_task_regoffs *reg;
const struct ic_task_bitfields *bit;
- enum ipu_color_space in_cs, g_in_cs;
- enum ipu_color_space out_cs;
+ struct ipu_ic_colorspace in_cs;
+ struct ipu_ic_colorspace g_in_cs;
+ struct ipu_ic_colorspace out_cs;
+
bool graphics;
bool rotation;
bool in_use;
@@ -174,60 +171,11 @@ static inline void ipu_ic_write(struct ipu_ic *ic, u32 value, unsigned offset)
writel(value, ic->priv->base + offset);
}
-struct ic_csc_params {
- s16 coeff[3][3]; /* signed 9-bit integer coefficients */
- s16 offset[3]; /* signed 11+2-bit fixed point offset */
- u8 scale:2; /* scale coefficients * 2^(scale-1) */
- bool sat:1; /* saturate to (16, 235(Y) / 240(U, V)) */
-};
-
-/*
- * Y = R * .299 + G * .587 + B * .114;
- * U = R * -.169 + G * -.332 + B * .500 + 128.;
- * V = R * .500 + G * -.419 + B * -.0813 + 128.;
- */
-static const struct ic_csc_params ic_csc_rgb2ycbcr = {
- .coeff = {
- { 77, 150, 29 },
- { 469, 427, 128 },
- { 128, 405, 491 },
- },
- .offset = { 0, 512, 512 },
- .scale = 1,
-};
-
-/* transparent RGB->RGB matrix for graphics combining */
-static const struct ic_csc_params ic_csc_rgb2rgb = {
- .coeff = {
- { 128, 0, 0 },
- { 0, 128, 0 },
- { 0, 0, 128 },
- },
- .scale = 2,
-};
-
-/*
- * R = (1.164 * (Y - 16)) + (1.596 * (Cr - 128));
- * G = (1.164 * (Y - 16)) - (0.392 * (Cb - 128)) - (0.813 * (Cr - 128));
- * B = (1.164 * (Y - 16)) + (2.017 * (Cb - 128);
- */
-static const struct ic_csc_params ic_csc_ycbcr2rgb = {
- .coeff = {
- { 149, 0, 204 },
- { 149, 462, 408 },
- { 149, 255, 0 },
- },
- .offset = { -446, 266, -554 },
- .scale = 2,
-};
-
static int init_csc(struct ipu_ic *ic,
- enum ipu_color_space inf,
- enum ipu_color_space outf,
+ const struct ipu_ic_csc *csc,
int csc_index)
{
struct ipu_ic_priv *priv = ic->priv;
- const struct ic_csc_params *params;
u32 __iomem *base;
const u16 (*c)[3];
const u16 *a;
@@ -236,27 +184,16 @@ static int init_csc(struct ipu_ic *ic,
base = (u32 __iomem *)
(priv->tpmem_base + ic->reg->tpmem_csc[csc_index]);
- if (inf == IPUV3_COLORSPACE_YUV && outf == IPUV3_COLORSPACE_RGB)
- params = &ic_csc_ycbcr2rgb;
- else if (inf == IPUV3_COLORSPACE_RGB && outf == IPUV3_COLORSPACE_YUV)
- params = &ic_csc_rgb2ycbcr;
- else if (inf == IPUV3_COLORSPACE_RGB && outf == IPUV3_COLORSPACE_RGB)
- params = &ic_csc_rgb2rgb;
- else {
- dev_err(priv->ipu->dev, "Unsupported color space conversion\n");
- return -EINVAL;
- }
-
/* Cast to unsigned */
- c = (const u16 (*)[3])params->coeff;
- a = (const u16 *)params->offset;
+ c = (const u16 (*)[3])csc->params.coeff;
+ a = (const u16 *)csc->params.offset;
param = ((a[0] & 0x1f) << 27) | ((c[0][0] & 0x1ff) << 18) |
((c[1][1] & 0x1ff) << 9) | (c[2][2] & 0x1ff);
writel(param, base++);
- param = ((a[0] & 0x1fe0) >> 5) | (params->scale << 8) |
- (params->sat << 9);
+ param = ((a[0] & 0x1fe0) >> 5) | (csc->params.scale << 8) |
+ (csc->params.sat << 10);
writel(param, base++);
param = ((a[1] & 0x1f) << 27) | ((c[0][1] & 0x1ff) << 18) |
@@ -343,14 +280,14 @@ void ipu_ic_task_enable(struct ipu_ic *ic)
if (ic->rotation)
ic_conf |= ic->bit->ic_conf_rot_en;
- if (ic->in_cs != ic->out_cs)
+ if (ic->in_cs.cs != ic->out_cs.cs)
ic_conf |= ic->bit->ic_conf_csc1_en;
if (ic->graphics) {
ic_conf |= ic->bit->ic_conf_cmb_en;
ic_conf |= ic->bit->ic_conf_csc1_en;
- if (ic->g_in_cs != ic->out_cs)
+ if (ic->g_in_cs.cs != ic->out_cs.cs)
ic_conf |= ic->bit->ic_conf_csc2_en;
}
@@ -384,107 +321,58 @@ void ipu_ic_task_disable(struct ipu_ic *ic)
}
EXPORT_SYMBOL_GPL(ipu_ic_task_disable);
-int ipu_ic_task_graphics_init(struct ipu_ic *ic,
- enum ipu_color_space in_g_cs,
- bool galpha_en, u32 galpha,
- bool colorkey_en, u32 colorkey)
+int ipu_ic_task_init_rsc(struct ipu_ic *ic,
+ const struct ipu_ic_csc *csc,
+ int in_width, int in_height,
+ int out_width, int out_height,
+ u32 rsc)
{
struct ipu_ic_priv *priv = ic->priv;
+ u32 downsize_coeff, resize_coeff;
unsigned long flags;
- u32 reg, ic_conf;
int ret = 0;
- if (ic->task == IC_TASK_ENCODER)
- return -EINVAL;
+ if (!rsc) {
+ /* Setup vertical resizing */
- spin_lock_irqsave(&priv->lock, flags);
+ ret = calc_resize_coeffs(ic, in_height, out_height,
+ &resize_coeff, &downsize_coeff);
+ if (ret)
+ return ret;
- ic_conf = ipu_ic_read(ic, IC_CONF);
+ rsc = (downsize_coeff << 30) | (resize_coeff << 16);
- if (!(ic_conf & ic->bit->ic_conf_csc1_en)) {
- /* need transparent CSC1 conversion */
- ret = init_csc(ic, IPUV3_COLORSPACE_RGB,
- IPUV3_COLORSPACE_RGB, 0);
+ /* Setup horizontal resizing */
+ ret = calc_resize_coeffs(ic, in_width, out_width,
+ &resize_coeff, &downsize_coeff);
if (ret)
- goto unlock;
+ return ret;
+
+ rsc |= (downsize_coeff << 14) | resize_coeff;
}
- ic->g_in_cs = in_g_cs;
+ spin_lock_irqsave(&priv->lock, flags);
- if (ic->g_in_cs != ic->out_cs) {
- ret = init_csc(ic, ic->g_in_cs, ic->out_cs, 1);
- if (ret)
- goto unlock;
- }
+ ipu_ic_write(ic, rsc, ic->reg->rsc);
- if (galpha_en) {
- ic_conf |= IC_CONF_IC_GLB_LOC_A;
- reg = ipu_ic_read(ic, IC_CMBP_1);
- reg &= ~(0xff << ic->bit->ic_cmb_galpha_bit);
- reg |= (galpha << ic->bit->ic_cmb_galpha_bit);
- ipu_ic_write(ic, reg, IC_CMBP_1);
- } else
- ic_conf &= ~IC_CONF_IC_GLB_LOC_A;
-
- if (colorkey_en) {
- ic_conf |= IC_CONF_KEY_COLOR_EN;
- ipu_ic_write(ic, colorkey, IC_CMBP_2);
- } else
- ic_conf &= ~IC_CONF_KEY_COLOR_EN;
+ /* Setup color space conversion */
+ ic->in_cs = csc->in_cs;
+ ic->out_cs = csc->out_cs;
- ipu_ic_write(ic, ic_conf, IC_CONF);
+ ret = init_csc(ic, csc, 0);
- ic->graphics = true;
-unlock:
spin_unlock_irqrestore(&priv->lock, flags);
return ret;
}
-EXPORT_SYMBOL_GPL(ipu_ic_task_graphics_init);
int ipu_ic_task_init(struct ipu_ic *ic,
+ const struct ipu_ic_csc *csc,
int in_width, int in_height,
- int out_width, int out_height,
- enum ipu_color_space in_cs,
- enum ipu_color_space out_cs)
+ int out_width, int out_height)
{
- struct ipu_ic_priv *priv = ic->priv;
- u32 reg, downsize_coeff, resize_coeff;
- unsigned long flags;
- int ret = 0;
-
- /* Setup vertical resizing */
- ret = calc_resize_coeffs(ic, in_height, out_height,
- &resize_coeff, &downsize_coeff);
- if (ret)
- return ret;
-
- reg = (downsize_coeff << 30) | (resize_coeff << 16);
-
- /* Setup horizontal resizing */
- ret = calc_resize_coeffs(ic, in_width, out_width,
- &resize_coeff, &downsize_coeff);
- if (ret)
- return ret;
-
- reg |= (downsize_coeff << 14) | resize_coeff;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- ipu_ic_write(ic, reg, ic->reg->rsc);
-
- /* Setup color space conversion */
- ic->in_cs = in_cs;
- ic->out_cs = out_cs;
-
- if (ic->in_cs != ic->out_cs) {
- ret = init_csc(ic, ic->in_cs, ic->out_cs, 0);
- if (ret)
- goto unlock;
- }
-
-unlock:
- spin_unlock_irqrestore(&priv->lock, flags);
- return ret;
+ return ipu_ic_task_init_rsc(ic, csc,
+ in_width, in_height,
+ out_width, out_height, 0);
}
EXPORT_SYMBOL_GPL(ipu_ic_task_init);
generated by cgit (git 2.34.1) at 2025-12-26 15:06:04 +0000