Hi Ajay,
On 19 March 2014 19:52, Ajay Kumar <ajaykumar.rs@xxxxxxxxxxx> wrote:
> Add post processor ops for MDNIE and their support functions.
> Expose an interface for the FIMD to register MDNIE PP.
>
> Signed-off-by: Ajay Kumar <ajaykumar.rs@xxxxxxxxxxx>
> Signed-off-by: Shirish S <s.shirish@xxxxxxxxxxx>
> Signed-off-by: Rahul Sharma <rahul.sharma@xxxxxxxxxxx>
> ---
> drivers/gpu/drm/exynos/Makefile | 2 +-
> drivers/gpu/drm/exynos/exynos_mdnie.c | 707 +++++++++++++++++++++++++++++
> drivers/gpu/drm/exynos/exynos_mdnie_regs.h | 154 +++++++
> 3 files changed, 862 insertions(+), 1 deletion(-)
> create mode 100644 drivers/gpu/drm/exynos/exynos_mdnie.c
> create mode 100644 drivers/gpu/drm/exynos/exynos_mdnie_regs.h
>
> diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile
> index 02dde22..653eab5 100644
> --- a/drivers/gpu/drm/exynos/Makefile
> +++ b/drivers/gpu/drm/exynos/Makefile
> @@ -10,7 +10,7 @@ exynosdrm-y := exynos_drm_drv.o exynos_drm_encoder.o \
>
> exynosdrm-$(CONFIG_DRM_EXYNOS_IOMMU) += exynos_drm_iommu.o
> exynosdrm-$(CONFIG_DRM_EXYNOS_DMABUF) += exynos_drm_dmabuf.o
> -exynosdrm-$(CONFIG_DRM_EXYNOS_FIMD) += exynos_drm_fimd.o
> +exynosdrm-$(CONFIG_DRM_EXYNOS_FIMD) += exynos_drm_fimd.o exynos_mdnie.o
> exynosdrm-$(CONFIG_DRM_EXYNOS_DSI) += exynos_drm_dsi.o
> exynosdrm-$(CONFIG_DRM_EXYNOS_DP) += exynos_dp_core.o exynos_dp_reg.o
> exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI) += exynos_hdmi.o exynos_mixer.o
> diff --git a/drivers/gpu/drm/exynos/exynos_mdnie.c b/drivers/gpu/drm/exynos/exynos_mdnie.c
> new file mode 100644
> index 0000000..a043853
> --- /dev/null
> +++ b/drivers/gpu/drm/exynos/exynos_mdnie.c
> @@ -0,0 +1,707 @@
> +/* drivers/gpu/drm/exynos/exynos_mdnie.c
> + *
> + * Samsung mDNIe driver
> + *
> + * Copyright (C) 2014 Samsung Electronics Co., Ltd.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> +*/
> +
> +#include <linux/clk.h>
> +#include <linux/errno.h>
> +#include <linux/of_device.h>
> +
> +#include <video/samsung_fimd.h>
> +
> +#include <drm/drmP.h>
> +
> +#include "exynos_drm_drv.h"
> +#include "exynos_fimd_pp.h"
> +#include "exynos_mdnie_regs.h"
> +
> +#define GAMMA_RAMP_LENGTH 17
> +#define COLOR_COMPONENTS 3
> +
> +#define MDNIE_ON 1
> +#define MDNIE_OFF 0
> +
> +#define PARAM_IN_RANGE(r, p, l, u) \
> + do { \
> + r = ((p >= l) && (p <= u)) ? 0 : 1; \
> + if (r) \
> + DRM_ERROR("Wrong param: %s:%llu\n", #p, (u64)p); \
> + } while (0)
> +
[snip]
> +static int mdnie_set_color_saturation_params(
> + struct mdnie_context *mdnie,
> + const struct drm_mode_color_saturation *params)
> +{
> + int ret;
> +
> + PARAM_IN_RANGE(ret, params->hue_gain_red, HG_MIN, HG_MAX);
> + PARAM_IN_RANGE(ret, params->hue_gain_green, HG_MIN, HG_MAX);
> + PARAM_IN_RANGE(ret, params->hue_gain_blue, HG_MIN, HG_MAX);
> + PARAM_IN_RANGE(ret, params->hue_gain_cyan, HG_MIN, HG_MAX);
> + PARAM_IN_RANGE(ret, params->hue_gain_magenta, HG_MIN, HG_MAX);
> + PARAM_IN_RANGE(ret, params->hue_gain_yellow, HG_MIN, HG_MAX);
> + PARAM_IN_RANGE(ret, params->hue_gain_overall, HG_MIN, HG_MAX);
> +
> + if (ret)
> + return -EINVAL;
This would be applicable only for the last macro call as ret would get
overwritten after
each call.
> + memcpy(&mdnie->params.cs_params, params, sizeof(*params));
> +
> + return 0;
> +}
> +
> +static int mdnie_set_color_reproduction_params(
> + struct mdnie_context *mdnie,
> + const struct drm_mode_color_reproduction *params)
> +{
> + int ret;
> +
> + PARAM_IN_RANGE(ret, params->red_rgb[0], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->red_rgb[1], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->red_rgb[2], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->green_rgb[0], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->green_rgb[1], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->green_rgb[2], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->blue_rgb[0], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->blue_rgb[1], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->blue_rgb[2], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->cyan_rgb[0], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->cyan_rgb[1], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->cyan_rgb[2], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->magenta_rgb[0], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->magenta_rgb[1], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->magenta_rgb[2], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->yellow_rgb[0], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->yellow_rgb[1], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->yellow_rgb[2], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->white_rgb[0], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->white_rgb[1], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->white_rgb[2], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->black_rgb[0], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->black_rgb[1], CC_MIN, CC_MAX);
> + PARAM_IN_RANGE(ret, params->black_rgb[2], CC_MIN, CC_MAX);
> +
> + if (ret)
> + return -EINVAL;
>
ditto
> + memcpy(&mdnie->params.cr_params, params, sizeof(*params));
> + return 0;
> +}
> +
> +static int mdnie_set_edge_enhancement_params(
> + struct mdnie_context *mdnie,
> + const struct drm_mode_edge_enhancement *params)
> +{
> + int ret;
> +
> + PARAM_IN_RANGE(ret, params->edge_th, TH_MIN, TH_MAX);
> + PARAM_IN_RANGE(ret, params->background_th, TH_MIN, TH_MAX);
> + PARAM_IN_RANGE(ret, params->pg_edge, GAIN_MIN, GAIN_MAX);
> + PARAM_IN_RANGE(ret, params->pg_flat, GAIN_MIN, GAIN_MAX);
> + PARAM_IN_RANGE(ret, params->pg_background, GAIN_MIN, GAIN_MAX);
> + PARAM_IN_RANGE(ret, params->ng_edge, GAIN_MIN, GAIN_MAX);
> + PARAM_IN_RANGE(ret, params->ng_flat, GAIN_MIN, GAIN_MAX);
> + PARAM_IN_RANGE(ret, params->ng_background, GAIN_MIN, GAIN_MAX);
ditto
> + if (ret)
> + return -EINVAL;
> +
> + memcpy(&mdnie->params.de_params, params, sizeof(*params));
> + return 0;
> +}
> +
> +static int mdnie_set_window_params(
> + struct mdnie_context *mdnie,
> + const struct drm_exynos_mdnie_window *params)
> +{
> + int ret;
> +
> + PARAM_IN_RANGE(ret, params->win_x, X_MIN, X_MAX);
> + PARAM_IN_RANGE(ret, params->win_y, Y_MIN, Y_MAX);
> + PARAM_IN_RANGE(ret, params->win_w, params->win_x, X_MAX);
> + PARAM_IN_RANGE(ret, params->win_h, params->win_y, Y_MAX);
ditto and all other places of similar usage.
[snip]
> +int exynos_mdnie_init(struct device *dev, struct exynos_fimd_pp **pp)
> +{
> + struct device_node *np = dev->of_node;
> + struct device_node *mdnie_np;
> + struct mdnie_context *mdnie = NULL;
> + u32 disp1blk_phyaddr;
> + int ret = 0;
> + u32 buf[2];
> +
> + mdnie_np = of_parse_phandle(np, "samsung,mdnie", 0);
> + if (!mdnie_np) {
> + DRM_INFO("No mdnie node present, "
> + "MDNIE feature will be disabled\n");
> + ret = -EINVAL;
> + goto err0;
return directly from here.
> + }
> +
> + if (of_property_read_u32_array(mdnie_np, "reg", buf, 2)) {
> + DRM_ERROR("failed to get base address for MDNIE\n");
> + ret = -ENOMEM;
> + goto err0;
ditto
> + }
> +
> + mdnie = kzalloc(sizeof(struct mdnie_context), GFP_KERNEL);
nit: use sizeof(*mdnie)
> + if (!mdnie) {
> + DRM_ERROR("failed to allocate mdnie\n");
This message is not needed as kzalloc prints OOM message upon failure.
> + ret = -ENOMEM;
> + goto err0;
> + }
return directly.
> +
> + mdnie->exynos_mdnie_base = ioremap(buf[0], buf[1]);
> + if (!mdnie->exynos_mdnie_base) {
> + DRM_ERROR("failed to ioremap mdnie device\n");
> + ret = -ENOMEM;
> + goto err1;
> + }
> +
> + if (dt_parse_disp1blk_cfg(dev, &disp1blk_phyaddr)) {
> + DRM_ERROR("failed to get disp1blk property.\n");
> + ret = -ENODEV;
> + goto err1;
> + }
> +
> + if (exynos_iomap_disp1blk(mdnie, disp1blk_phyaddr)) {
> + DRM_ERROR("failed to iopmap disp1blk sysreg.\n");
s/iopmap/iomap
--
With warm regards,
Sachin
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