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path: root/drivers/gpu/ipu-v3/ipu-ic.c
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Diffstat (limited to 'drivers/gpu/ipu-v3/ipu-ic.c')
-rw-r--r--drivers/gpu/ipu-v3/ipu-ic.c138
1 files changed, 45 insertions, 93 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-ic.c b/drivers/gpu/ipu-v3/ipu-ic.c
index 89c3961f0fce..846461bac70d 100644
--- a/drivers/gpu/ipu-v3/ipu-ic.c
+++ b/drivers/gpu/ipu-v3/ipu-ic.c
@@ -140,8 +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;
@@ -169,60 +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;
@@ -231,27 +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) |
@@ -338,14 +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;
}
@@ -380,11 +322,12 @@ 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,
+ const struct ipu_ic_colorspace *g_in_cs,
bool galpha_en, u32 galpha,
bool colorkey_en, u32 colorkey)
{
struct ipu_ic_priv *priv = ic->priv;
+ struct ipu_ic_csc csc2;
unsigned long flags;
u32 reg, ic_conf;
int ret = 0;
@@ -397,21 +340,36 @@ int ipu_ic_task_graphics_init(struct ipu_ic *ic,
ic_conf = ipu_ic_read(ic, IC_CONF);
if (!(ic_conf & ic->bit->ic_conf_csc1_en)) {
- /* need transparent CSC1 conversion */
- ret = init_csc(ic, IPUV3_COLORSPACE_RGB,
- IPUV3_COLORSPACE_RGB, 0);
+ struct ipu_ic_csc csc1;
+
+ ret = ipu_ic_calc_csc(&csc1,
+ V4L2_YCBCR_ENC_601,
+ V4L2_QUANTIZATION_FULL_RANGE,
+ IPUV3_COLORSPACE_RGB,
+ V4L2_YCBCR_ENC_601,
+ V4L2_QUANTIZATION_FULL_RANGE,
+ IPUV3_COLORSPACE_RGB);
if (ret)
goto unlock;
- }
-
- ic->g_in_cs = in_g_cs;
- if (ic->g_in_cs != ic->out_cs) {
- ret = init_csc(ic, ic->g_in_cs, ic->out_cs, 1);
+ /* need transparent CSC1 conversion */
+ ret = init_csc(ic, &csc1, 0);
if (ret)
goto unlock;
}
+ ic->g_in_cs = *g_in_cs;
+ csc2.in_cs = ic->g_in_cs;
+ csc2.out_cs = ic->out_cs;
+
+ ret = __ipu_ic_calc_csc(&csc2);
+ if (ret)
+ goto unlock;
+
+ ret = init_csc(ic, &csc2, 1);
+ if (ret)
+ goto unlock;
+
if (galpha_en) {
ic_conf |= IC_CONF_IC_GLB_LOC_A;
reg = ipu_ic_read(ic, IC_CMBP_1);
@@ -437,10 +395,9 @@ unlock:
EXPORT_SYMBOL_GPL(ipu_ic_task_graphics_init);
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,
- enum ipu_color_space in_cs,
- enum ipu_color_space out_cs,
u32 rsc)
{
struct ipu_ic_priv *priv = ic->priv;
@@ -472,28 +429,23 @@ int ipu_ic_task_init_rsc(struct ipu_ic *ic,
ipu_ic_write(ic, rsc, ic->reg->rsc);
/* Setup color space conversion */
- ic->in_cs = in_cs;
- ic->out_cs = out_cs;
+ ic->in_cs = csc->in_cs;
+ ic->out_cs = csc->out_cs;
- if (ic->in_cs != ic->out_cs) {
- ret = init_csc(ic, ic->in_cs, ic->out_cs, 0);
- if (ret)
- goto unlock;
- }
+ ret = init_csc(ic, csc, 0);
-unlock:
spin_unlock_irqrestore(&priv->lock, flags);
return ret;
}
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)
{
- return ipu_ic_task_init_rsc(ic, in_width, in_height, out_width,
- out_height, in_cs, out_cs, 0);
+ return ipu_ic_task_init_rsc(ic, csc,
+ in_width, in_height,
+ out_width, out_height, 0);
}
EXPORT_SYMBOL_GPL(ipu_ic_task_init);
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