@@ -57,3 +57,9 @@ config DRM_EXYNOS_ROTATOR
depends on DRM_EXYNOS_IPP
help
Choose this option if you want to use Exynos Rotator for DRM.
+
+config DRM_EXYNOS_GSC
+ bool "Exynos DRM GSC"
+ depends on DRM_EXYNOS_IPP && ARCH_EXYNOS5
+ help
+ Choose this option if you want to use Exynos GSC for DRM.
@@ -18,5 +18,6 @@ exynosdrm-$(CONFIG_DRM_EXYNOS_G2D) += exynos_drm_g2d.o
exynosdrm-$(CONFIG_DRM_EXYNOS_IPP) += exynos_drm_ipp.o
exynosdrm-$(CONFIG_DRM_EXYNOS_FIMC) += exynos_drm_fimc.o
exynosdrm-$(CONFIG_DRM_EXYNOS_ROTATOR) += exynos_drm_rotator.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_GSC) += exynos_drm_gsc.o
obj-$(CONFIG_DRM_EXYNOS) += exynosdrm.o
@@ -367,6 +367,12 @@ static int __init exynos_drm_init(void)
goto out_rotator;
#endif
+#ifdef CONFIG_DRM_EXYNOS_GSC
+ ret = platform_driver_register(&gsc_driver);
+ if (ret < 0)
+ goto out_gsc;
+#endif
+
#ifdef CONFIG_DRM_EXYNOS_IPP
ret = platform_driver_register(&ipp_driver);
if (ret < 0)
@@ -395,6 +401,11 @@ out_drm:
out_ipp:
#endif
+#ifdef CONFIG_DRM_EXYNOS_GSC
+ platform_driver_unregister(&gsc_driver);
+out_gsc:
+#endif
+
#ifdef CONFIG_DRM_EXYNOS_ROTATOR
platform_driver_unregister(&rotator_driver);
out_rotator:
@@ -445,6 +456,10 @@ static void __exit exynos_drm_exit(void)
platform_driver_unregister(&ipp_driver);
#endif
+#ifdef CONFIG_DRM_EXYNOS_GSC
+ platform_driver_unregister(&gsc_driver);
+#endif
+
#ifdef CONFIG_DRM_EXYNOS_ROTATOR
platform_driver_unregister(&rotator_driver);
#endif
@@ -343,5 +343,6 @@ extern struct platform_driver vidi_driver;
extern struct platform_driver g2d_driver;
extern struct platform_driver fimc_driver;
extern struct platform_driver rotator_driver;
+extern struct platform_driver gsc_driver;
extern struct platform_driver ipp_driver;
#endif
new file mode 100644
@@ -0,0 +1,1476 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Authors:
+ * Eunchul Kim <chulspro.kim@samsung.com>
+ * Jinyoung Jeon <jy0.jeon@samsung.com>
+ * Sangmin Lee <lsmin.lee@samsung.com>
+ *
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/pm_runtime.h>
+#include <plat/map-base.h>
+
+#include <drm/drmP.h>
+#include <drm/exynos_drm.h>
+#include "regs-gsc.h"
+#include "exynos_drm_drv.h"
+#include "exynos_drm_gem.h"
+#include "exynos_drm_ipp.h"
+#include "exynos_drm_gsc.h"
+
+/*
+ * GSC is stand for General SCaler and
+ * supports image scaler/rotator and input/output DMA operations.
+ * input DMA reads image data from the memory.
+ * output DMA writes image data to memory.
+ * GSC supports image rotation and image effect functions.
+ */
+
+#define GSC_MAX_DEVS 4
+#define GSC_MAX_SRC 8
+#define GSC_MAX_DST 32
+#define GSC_RESET_TIMEOUT 50
+#define GSC_CLK_RATE 166750000
+#define GSC_BUF_STOP 1
+#define GSC_BUF_START 2
+#define GSC_REG_SZ 32
+#define GSC_WIDTH_ITU_709 1280
+
+#define get_gsc_context(dev) platform_get_drvdata(to_platform_device(dev))
+#define get_ctx_from_ippdrv(ippdrv) container_of(ippdrv,\
+ struct gsc_context, ippdrv);
+#define gsc_read(offset) readl(ctx->regs + (offset));
+#define gsc_write(cfg, offset) writel(cfg, ctx->regs + (offset));
+
+enum gsc_wb {
+ GSC_WB_NONE,
+ GSC_WB_A,
+ GSC_WB_B,
+};
+
+/*
+ * A structure of scaler.
+ *
+ * @range: narrow, wide.
+ * @pre_shfactor: pre sclaer shift factor.
+ * @pre_hratio: horizontal ratio of the prescaler.
+ * @pre_vratio: vertical ratio of the prescaler.
+ * @main_hratio: the main scaler's horizontal ratio.
+ * @main_vratio: the main scaler's vertical ratio.
+ */
+struct gsc_scaler {
+ bool range;
+ u32 pre_shfactor;
+ u32 pre_hratio;
+ u32 pre_vratio;
+ unsigned long main_hratio;
+ unsigned long main_vratio;
+};
+
+/*
+ * A structure of scaler capability.
+ *
+ * find user manual 49.2 features.
+ * @tile_w: tile mode or rotation width.
+ * @tile_h: tile mode or rotation height.
+ * @w: other cases width.
+ * @h: other cases height.
+ */
+struct gsc_capability {
+ /* tile or rotation */
+ u32 tile_w;
+ u32 tile_h;
+ /* other cases */
+ u32 w;
+ u32 h;
+};
+
+/*
+ * A structure of gsc context.
+ *
+ * @ippdrv: prepare initialization using ippdrv.
+ * @regs_res: register resources.
+ * @regs: memory mapped io registers.
+ * @lock: locking of operations.
+ * @gsc_clk: gsc clock.
+ * @sc: scaler infomations.
+ * @capa: scaler capability.
+ * @id: gsc id.
+ * @irq: irq number.
+ * @suspended: qos operations.
+ */
+struct gsc_context {
+ struct exynos_drm_ippdrv ippdrv;
+ struct resource *regs_res;
+ void __iomem *regs;
+ spinlock_t lock;
+ struct clk *gsc_clk;
+ struct gsc_scaler sc;
+ struct gsc_capability *capa;
+ int id;
+ int irq;
+ bool suspended;
+};
+
+struct gsc_capability gsc51_capa[GSC_MAX_DEVS] = {
+ {
+ .tile_w = 2048,
+ .tile_h = 2048,
+ .w = 4800,
+ .h = 3344,
+ }, {
+ .tile_w = 2048,
+ .tile_h = 2048,
+ .w = 4800,
+ .h = 3344,
+ }, {
+ .tile_w = 2048,
+ .tile_h = 2048,
+ .w = 4800,
+ .h = 3344,
+ }, {
+ .tile_w = 2048,
+ .tile_h = 2048,
+ .w = 4800,
+ .h = 3344,
+ },
+};
+
+static int gsc_sw_reset(struct gsc_context *ctx)
+{
+ u32 cfg;
+ int count = GSC_RESET_TIMEOUT;
+
+ DRM_DEBUG_KMS("%s\n", __func__);
+
+ /* s/w reset */
+ cfg = (GSC_SW_RESET_SRESET);
+ gsc_write(cfg, GSC_SW_RESET);
+
+ /* wait s/w reset complete */
+ while (count--) {
+ cfg = gsc_read(GSC_SW_RESET);
+ if (!cfg)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ if (cfg) {
+ DRM_ERROR("failed to reset gsc h/w.\n");
+ return -EBUSY;
+ }
+
+ /* display fifo reset */
+ cfg = readl(SYSREG_GSCBLK_CFG0);
+ /*
+ * GSCBLK Pixel asyncy FIFO S/W reset sequence
+ * set PXLASYNC_SW_RESET as 0 then,
+ * set PXLASYNC_SW_RESET as 1 again
+ */
+ cfg &= ~GSC_PXLASYNC_RST(ctx->id);
+ writel(cfg, SYSREG_GSCBLK_CFG0);
+ cfg |= GSC_PXLASYNC_RST(ctx->id);
+ writel(cfg, SYSREG_GSCBLK_CFG0);
+
+ /* pixel async reset */
+ cfg = readl(SYSREG_DISP1BLK_CFG);
+ /*
+ * DISPBLK1 FIFO S/W reset sequence
+ * set FIFORST_DISP1 as 0 then,
+ * set FIFORST_DISP1 as 1 again
+ */
+ cfg &= ~FIFORST_DISP1;
+ writel(cfg, SYSREG_DISP1BLK_CFG);
+ cfg |= FIFORST_DISP1;
+ writel(cfg, SYSREG_DISP1BLK_CFG);
+
+ /* reset sequence */
+ cfg = gsc_read(GSC_IN_BASE_ADDR_Y_MASK);
+ cfg |= (GSC_IN_BASE_ADDR_MASK |
+ GSC_IN_BASE_ADDR_PINGPONG(0));
+ gsc_write(cfg, GSC_IN_BASE_ADDR_Y_MASK);
+ gsc_write(cfg, GSC_IN_BASE_ADDR_CB_MASK);
+ gsc_write(cfg, GSC_IN_BASE_ADDR_CR_MASK);
+
+ cfg = gsc_read(GSC_OUT_BASE_ADDR_Y_MASK);
+ cfg |= (GSC_OUT_BASE_ADDR_MASK |
+ GSC_OUT_BASE_ADDR_PINGPONG(0));
+ gsc_write(cfg, GSC_OUT_BASE_ADDR_Y_MASK);
+ gsc_write(cfg, GSC_OUT_BASE_ADDR_CB_MASK);
+ gsc_write(cfg, GSC_OUT_BASE_ADDR_CR_MASK);
+
+ return 0;
+}
+
+static void gsc_set_gscblk_fimd_wb(struct gsc_context *ctx, bool enable)
+{
+ u32 gscblk_cfg;
+
+ DRM_DEBUG_KMS("%s\n", __func__);
+
+ gscblk_cfg = readl(SYSREG_GSCBLK_CFG1);
+
+ if (enable)
+ gscblk_cfg |= GSC_BLK_DISP1WB_DEST(ctx->id) |
+ GSC_BLK_GSCL_WB_IN_SRC_SEL(ctx->id) |
+ GSC_BLK_SW_RESET_WB_DEST(ctx->id);
+ else
+ gscblk_cfg |= GSC_BLK_PXLASYNC_LO_MASK_WB(ctx->id);
+
+ writel(gscblk_cfg, SYSREG_GSCBLK_CFG1);
+}
+
+static void gsc_handle_irq(struct gsc_context *ctx, bool enable,
+ bool overflow, bool done)
+{
+ u32 cfg;
+
+ DRM_DEBUG_KMS("%s:enable[%d]overflow[%d]level[%d]\n", __func__,
+ enable, overflow, done);
+
+ cfg = gsc_read(GSC_IRQ);
+ cfg |= (GSC_IRQ_OR_MASK | GSC_IRQ_FRMDONE_MASK);
+
+ if (enable) {
+ cfg |= GSC_IRQ_ENABLE;
+ if (overflow)
+ cfg &= ~GSC_IRQ_OR_MASK;
+ if (done)
+ cfg &= ~GSC_IRQ_FRMDONE_MASK;
+ } else
+ cfg &= ~GSC_IRQ_ENABLE;
+
+ gsc_write(cfg, GSC_IRQ);
+}
+
+
+static int gsc_src_set_fmt(struct device *dev, u32 fmt)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("%s:fmt[0x%x]\n", __func__, fmt);
+
+ cfg = gsc_read(GSC_IN_CON);
+ cfg &= ~(GSC_IN_RGB_TYPE_MASK | GSC_IN_YUV422_1P_ORDER_MASK |
+ GSC_IN_CHROMA_ORDER_MASK | GSC_IN_FORMAT_MASK |
+ GSC_IN_TILE_TYPE_MASK | GSC_IN_TILE_MODE);
+
+ switch (fmt) {
+ case DRM_FORMAT_RGB565:
+ cfg |= GSC_IN_RGB565;
+ break;
+ case DRM_FORMAT_XRGB8888:
+ cfg |= GSC_IN_XRGB8888;
+ break;
+ case DRM_FORMAT_YUYV:
+ cfg |= (GSC_IN_YUV422_1P |
+ GSC_IN_YUV422_1P_ORDER_LSB_Y |
+ GSC_IN_CHROMA_ORDER_CBCR);
+ break;
+ case DRM_FORMAT_YVYU:
+ cfg |= (GSC_IN_YUV422_1P |
+ GSC_IN_YUV422_1P_ORDER_LSB_Y |
+ GSC_IN_CHROMA_ORDER_CRCB);
+ break;
+ case DRM_FORMAT_UYVY:
+ cfg |= (GSC_IN_YUV422_1P |
+ GSC_IN_YUV422_1P_OEDER_LSB_C |
+ GSC_IN_CHROMA_ORDER_CBCR);
+ break;
+ case DRM_FORMAT_VYUY:
+ cfg |= (GSC_IN_YUV422_1P |
+ GSC_IN_YUV422_1P_OEDER_LSB_C |
+ GSC_IN_CHROMA_ORDER_CRCB);
+ break;
+ case DRM_FORMAT_NV21:
+ case DRM_FORMAT_NV61:
+ cfg |= (GSC_IN_CHROMA_ORDER_CRCB |
+ GSC_IN_YUV420_2P);
+ break;
+ case DRM_FORMAT_YUV422:
+ cfg |= GSC_IN_YUV422_3P;
+ break;
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ cfg |= GSC_IN_YUV420_3P;
+ break;
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV16:
+ cfg |= (GSC_IN_CHROMA_ORDER_CBCR |
+ GSC_IN_YUV420_2P);
+ break;
+ case DRM_FORMAT_NV12MT:
+ cfg |= (GSC_IN_TILE_C_16x8 | GSC_IN_TILE_MODE);
+ break;
+ default:
+ dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
+ return -EINVAL;
+ }
+
+ gsc_write(cfg, GSC_IN_CON);
+
+ return 0;
+}
+
+static int gsc_src_set_transf(struct device *dev,
+ enum drm_exynos_degree degree,
+ enum drm_exynos_flip flip)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("%s:degree[%d]flip[0x%x]\n", __func__,
+ degree, flip);
+
+ cfg = gsc_read(GSC_IN_CON);
+ cfg &= ~GSC_IN_ROT_MASK;
+
+ switch (degree) {
+ case EXYNOS_DRM_DEGREE_0:
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg |= GSC_IN_ROT_XFLIP;
+ if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg |= GSC_IN_ROT_YFLIP;
+ break;
+ case EXYNOS_DRM_DEGREE_90:
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg |= GSC_IN_ROT_90_XFLIP;
+ else if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg |= GSC_IN_ROT_90_YFLIP;
+ else
+ cfg |= GSC_IN_ROT_90;
+ break;
+ case EXYNOS_DRM_DEGREE_180:
+ cfg |= GSC_IN_ROT_180;
+ break;
+ case EXYNOS_DRM_DEGREE_270:
+ cfg |= GSC_IN_ROT_270;
+ break;
+ default:
+ dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
+ return -EINVAL;
+ }
+
+ gsc_write(cfg, GSC_IN_CON);
+
+ return cfg ? 1 : 0;
+}
+
+static int gsc_src_set_size(struct device *dev, int swap,
+ struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct drm_exynos_pos img_pos = *pos;
+ struct drm_exynos_sz img_sz = *sz;
+ u32 cfg;
+
+ /* ToDo: check width and height */
+ if (swap) {
+ img_pos.w = pos->h;
+ img_pos.h = pos->w;
+ img_sz.hsize = sz->vsize;
+ img_sz.vsize = sz->hsize;
+ }
+
+ DRM_DEBUG_KMS("%s:x[%d]y[%d]w[%d]h[%d]\n",
+ __func__, pos->x, pos->y, pos->w, pos->h);
+
+ /* pixel offset */
+ cfg = (GSC_SRCIMG_OFFSET_X(img_pos.x) |
+ GSC_SRCIMG_OFFSET_Y(img_pos.y));
+ gsc_write(cfg, GSC_SRCIMG_OFFSET);
+
+ /* cropped size */
+ cfg = (GSC_CROPPED_WIDTH(img_pos.w) |
+ GSC_CROPPED_HEIGHT(img_pos.h));
+ gsc_write(cfg, GSC_CROPPED_SIZE);
+
+ DRM_DEBUG_KMS("%s:swap[%d]hsize[%d]vsize[%d]\n",
+ __func__, swap, sz->hsize, sz->vsize);
+
+ /* original size */
+ cfg = gsc_read(GSC_SRCIMG_SIZE);
+ cfg &= ~(GSC_SRCIMG_HEIGHT_MASK |
+ GSC_SRCIMG_WIDTH_MASK);
+
+ cfg |= (GSC_SRCIMG_WIDTH(sz->hsize) |
+ GSC_SRCIMG_HEIGHT(sz->vsize));
+
+ gsc_write(cfg, GSC_SRCIMG_SIZE);
+
+ return 0;
+}
+
+static int gsc_src_set_buf_seq(struct gsc_context *ctx, u32 buf_id,
+ enum drm_exynos_ipp_buf_type buf_type)
+{
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ bool masked;
+ u32 cfg;
+ u32 mask = 0x00000001 << buf_id;
+
+ DRM_DEBUG_KMS("%s:buf_id[%d]buf_type[%d]\n", __func__,
+ buf_id, buf_type);
+
+ /* mask register set */
+ cfg = gsc_read(GSC_IN_BASE_ADDR_Y_MASK);
+
+ switch (buf_type) {
+ case IPP_BUF_ENQUEUE:
+ masked = false;
+ break;
+ case IPP_BUF_DEQUEUE:
+ masked = true;
+ break;
+ default:
+ dev_err(ippdrv->dev, "invalid buf ctrl parameter.\n");
+ return -EINVAL;
+ }
+
+ /* sequence id */
+ cfg &= (~mask);
+ cfg |= masked << buf_id;
+ gsc_write(cfg, GSC_IN_BASE_ADDR_Y_MASK);
+ gsc_write(cfg, GSC_IN_BASE_ADDR_CB_MASK);
+ gsc_write(cfg, GSC_IN_BASE_ADDR_CR_MASK);
+
+ return 0;
+}
+
+static int gsc_src_set_addr(struct device *dev,
+ struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
+ enum drm_exynos_ipp_buf_type buf_type)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ struct drm_exynos_ipp_cmd_node *c_node = ippdrv->cmd;
+ struct drm_exynos_ipp_property *property;
+
+ if (!c_node) {
+ DRM_ERROR("failed to get c_node.\n");
+ return -EINVAL;
+ }
+
+ property = &c_node->property;
+ if (!property) {
+ DRM_ERROR("failed to get property.\n");
+ return -EINVAL;
+ }
+
+ DRM_DEBUG_KMS("%s:prop_id[%d]buf_id[%d]buf_type[%d]\n", __func__,
+ property->prop_id, buf_id, buf_type);
+
+ if (buf_id > GSC_MAX_SRC) {
+ dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
+ return -ENOMEM;
+ }
+
+ /* address register set */
+ switch (buf_type) {
+ case IPP_BUF_ENQUEUE:
+ gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_Y],
+ GSC_IN_BASE_ADDR_Y(buf_id));
+ gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CB],
+ GSC_IN_BASE_ADDR_CB(buf_id));
+ gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CR],
+ GSC_IN_BASE_ADDR_CR(buf_id));
+ break;
+ case IPP_BUF_DEQUEUE:
+ gsc_write(0x0, GSC_IN_BASE_ADDR_Y(buf_id));
+ gsc_write(0x0, GSC_IN_BASE_ADDR_CB(buf_id));
+ gsc_write(0x0, GSC_IN_BASE_ADDR_CR(buf_id));
+ break;
+ default:
+ /* bypass */
+ break;
+ }
+
+ return gsc_src_set_buf_seq(ctx, buf_id, buf_type);
+}
+
+static struct exynos_drm_ipp_ops gsc_src_ops = {
+ .set_fmt = gsc_src_set_fmt,
+ .set_transf = gsc_src_set_transf,
+ .set_size = gsc_src_set_size,
+ .set_addr = gsc_src_set_addr,
+};
+
+static int gsc_dst_set_fmt(struct device *dev, u32 fmt)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("%s:fmt[0x%x]\n", __func__, fmt);
+
+ cfg = gsc_read(GSC_OUT_CON);
+ cfg &= ~(GSC_OUT_RGB_TYPE_MASK | GSC_OUT_YUV422_1P_ORDER_MASK |
+ GSC_OUT_CHROMA_ORDER_MASK | GSC_OUT_FORMAT_MASK |
+ GSC_OUT_TILE_TYPE_MASK | GSC_OUT_TILE_MODE);
+
+ switch (fmt) {
+ case DRM_FORMAT_RGB565:
+ cfg |= GSC_OUT_RGB565;
+ break;
+ case DRM_FORMAT_XRGB8888:
+ cfg |= GSC_OUT_XRGB8888;
+ break;
+ case DRM_FORMAT_YUYV:
+ cfg |= (GSC_OUT_YUV422_1P |
+ GSC_OUT_YUV422_1P_ORDER_LSB_Y |
+ GSC_OUT_CHROMA_ORDER_CBCR);
+ break;
+ case DRM_FORMAT_YVYU:
+ cfg |= (GSC_OUT_YUV422_1P |
+ GSC_OUT_YUV422_1P_ORDER_LSB_Y |
+ GSC_OUT_CHROMA_ORDER_CRCB);
+ break;
+ case DRM_FORMAT_UYVY:
+ cfg |= (GSC_OUT_YUV422_1P |
+ GSC_OUT_YUV422_1P_OEDER_LSB_C |
+ GSC_OUT_CHROMA_ORDER_CBCR);
+ break;
+ case DRM_FORMAT_VYUY:
+ cfg |= (GSC_OUT_YUV422_1P |
+ GSC_OUT_YUV422_1P_OEDER_LSB_C |
+ GSC_OUT_CHROMA_ORDER_CRCB);
+ break;
+ case DRM_FORMAT_NV21:
+ case DRM_FORMAT_NV61:
+ cfg |= (GSC_OUT_CHROMA_ORDER_CRCB |
+ GSC_OUT_YUV420_2P);
+ break;
+ case DRM_FORMAT_YUV422:
+ case DRM_FORMAT_YUV420:
+ case DRM_FORMAT_YVU420:
+ cfg |= GSC_OUT_YUV420_3P;
+ break;
+ case DRM_FORMAT_NV12:
+ case DRM_FORMAT_NV16:
+ cfg |= (GSC_OUT_CHROMA_ORDER_CBCR |
+ GSC_OUT_YUV420_2P);
+ break;
+ case DRM_FORMAT_NV12MT:
+ cfg |= (GSC_OUT_TILE_C_16x8 | GSC_OUT_TILE_MODE);
+ break;
+ default:
+ dev_err(ippdrv->dev, "inavlid target yuv order 0x%x.\n", fmt);
+ return -EINVAL;
+ }
+
+ gsc_write(cfg, GSC_OUT_CON);
+
+ return 0;
+}
+
+static int gsc_dst_set_transf(struct device *dev,
+ enum drm_exynos_degree degree,
+ enum drm_exynos_flip flip)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("%s:degree[%d]flip[0x%x]\n", __func__,
+ degree, flip);
+
+ cfg = gsc_read(GSC_OUT_CON);
+ cfg &= ~GSC_IN_ROT_MASK;
+
+ switch (degree) {
+ case EXYNOS_DRM_DEGREE_0:
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg |= GSC_IN_ROT_XFLIP;
+ if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg |= GSC_IN_ROT_YFLIP;
+ break;
+ case EXYNOS_DRM_DEGREE_90:
+ if (flip & EXYNOS_DRM_FLIP_HORIZONTAL)
+ cfg |= GSC_IN_ROT_90_XFLIP;
+ else if (flip & EXYNOS_DRM_FLIP_VERTICAL)
+ cfg |= GSC_IN_ROT_90_YFLIP;
+ else
+ cfg |= GSC_IN_ROT_90;
+ break;
+ case EXYNOS_DRM_DEGREE_180:
+ cfg |= GSC_IN_ROT_180;
+ break;
+ case EXYNOS_DRM_DEGREE_270:
+ cfg |= GSC_IN_ROT_270;
+ break;
+ default:
+ dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree);
+ return -EINVAL;
+ }
+
+ gsc_write(cfg, GSC_OUT_CON);
+
+ return cfg ? 1 : 0;
+}
+
+static int gsc_get_ratio_shift(u32 src, u32 dst, u32 *ratio, u32 *shift)
+{
+ DRM_DEBUG_KMS("%s:src[%d]dst[%d]\n", __func__, src, dst);
+
+ if (src >= dst * 64) {
+ DRM_ERROR("failed to make ratio and shift.\n");
+ return -EINVAL;
+ } else if (src >= dst * 32) {
+ *ratio = 32;
+ *shift = 5;
+ } else if (src >= dst * 16) {
+ *ratio = 16;
+ *shift = 4;
+ } else if (src >= dst * 8) {
+ *ratio = 8;
+ *shift = 3;
+ } else if (src >= dst * 4) {
+ *ratio = 4;
+ *shift = 2;
+ } else if (src >= dst * 2) {
+ *ratio = 2;
+ *shift = 1;
+ } else {
+ *ratio = 1;
+ *shift = 0;
+ }
+
+ return 0;
+}
+
+static int gsc_set_prescaler(struct gsc_context *ctx, struct gsc_scaler *sc,
+ struct drm_exynos_pos *src, struct drm_exynos_pos *dst)
+{
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ u32 cfg, cfg_ext;
+ u32 hfactor, vfactor;
+ u32 src_w, src_h, dst_w, dst_h;
+ int ret = 0;
+
+ cfg_ext = gsc_read(GSC_IN_CON);
+ if (cfg_ext & GSC_IN_ROT_90) {
+ src_w = src->h;
+ src_h = src->w;
+ } else{
+ src_w = src->w;
+ src_h = src->h;
+ }
+
+ cfg_ext = gsc_read(GSC_OUT_CON);
+ if (cfg_ext & GSC_IN_ROT_90) {
+ dst_w = dst->h;
+ dst_h = dst->w;
+ } else{
+ dst_w = dst->w;
+ dst_h = dst->h;
+ }
+
+ ret = gsc_get_ratio_shift(src_w, dst_w, &sc->pre_hratio, &hfactor);
+ if (ret) {
+ dev_err(ippdrv->dev, "failed to get ratio horizontal.\n");
+ return ret;
+ }
+
+ ret = gsc_get_ratio_shift(src_h, dst_h, &sc->pre_vratio, &vfactor);
+ if (ret) {
+ dev_err(ippdrv->dev, "failed to get ratio vertical.\n");
+ return ret;
+ }
+
+ DRM_DEBUG_KMS("%s:pre_hratio[%d]hfactor[%d]pre_vratio[%d]vfactor[%d]\n",
+ __func__, sc->pre_hratio, hfactor, sc->pre_vratio, vfactor);
+
+ sc->main_hratio = (src_w << 16) / (dst_w << hfactor);
+ sc->main_vratio = (src_h << 16) / (dst_h << vfactor);
+ DRM_DEBUG_KMS("%s:main_hratio[%ld]main_vratio[%ld]\n",
+ __func__, sc->main_hratio, sc->main_vratio);
+
+ sc->pre_shfactor = 10 - (hfactor + vfactor);
+ DRM_DEBUG_KMS("%s:pre_shfactor[%d]\n", __func__,
+ sc->pre_shfactor);
+
+ cfg = (GSC_PRESC_SHFACTOR(sc->pre_shfactor) |
+ GSC_PRESC_H_RATIO(sc->pre_hratio) |
+ GSC_PRESC_V_RATIO(sc->pre_vratio));
+ gsc_write(cfg, GSC_PRE_SCALE_RATIO);
+
+ return ret;
+}
+
+static void gsc_set_scaler(struct gsc_context *ctx, struct gsc_scaler *sc)
+{
+ u32 cfg;
+
+ DRM_DEBUG_KMS("%s:main_hratio[%ld]main_vratio[%ld]\n",
+ __func__, sc->main_hratio, sc->main_vratio);
+
+ cfg = GSC_MAIN_H_RATIO_VALUE(sc->main_hratio);
+ gsc_write(cfg, GSC_MAIN_H_RATIO);
+
+ cfg = GSC_MAIN_V_RATIO_VALUE(sc->main_vratio);
+ gsc_write(cfg, GSC_MAIN_V_RATIO);
+}
+
+static int gsc_dst_set_size(struct device *dev, int swap,
+ struct drm_exynos_pos *pos, struct drm_exynos_sz *sz)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct drm_exynos_pos img_pos = *pos;
+ struct drm_exynos_sz img_sz = *sz;
+ struct gsc_scaler *sc = &ctx->sc;
+ u32 cfg;
+
+ DRM_DEBUG_KMS("%s:swap[%d]x[%d]y[%d]w[%d]h[%d]\n",
+ __func__, swap, pos->x, pos->y, pos->w, pos->h);
+
+ if (swap) {
+ img_pos.w = pos->h;
+ img_pos.h = pos->w;
+ img_sz.hsize = sz->vsize;
+ img_sz.vsize = sz->hsize;
+ }
+
+ /* pixel offset */
+ cfg = (GSC_DSTIMG_OFFSET_X(img_pos.x) |
+ GSC_DSTIMG_OFFSET_Y(img_pos.y));
+ gsc_write(cfg, GSC_DSTIMG_OFFSET);
+
+ /* scaled size */
+ cfg = (GSC_SCALED_WIDTH(pos->w) | GSC_SCALED_HEIGHT(pos->h));
+ gsc_write(cfg, GSC_SCALED_SIZE);
+
+ DRM_DEBUG_KMS("%s:hsize[%d]vsize[%d]\n",
+ __func__, sz->hsize, sz->vsize);
+
+ /* original size */
+ cfg = gsc_read(GSC_DSTIMG_SIZE);
+ cfg &= ~(GSC_DSTIMG_HEIGHT_MASK |
+ GSC_DSTIMG_WIDTH_MASK);
+ cfg |= (GSC_DSTIMG_WIDTH(img_sz.hsize) |
+ GSC_DSTIMG_HEIGHT(img_sz.vsize));
+ gsc_write(cfg, GSC_DSTIMG_SIZE);
+
+ cfg = gsc_read(GSC_OUT_CON);
+ cfg &= ~GSC_OUT_RGB_TYPE_MASK;
+
+ if (pos->w >= GSC_WIDTH_ITU_709)
+ if (sc->range)
+ cfg |= GSC_OUT_RGB_HD_WIDE;
+ else
+ cfg |= GSC_OUT_RGB_HD_NARROW;
+ else
+ if (sc->range)
+ cfg |= GSC_OUT_RGB_SD_WIDE;
+ else
+ cfg |= GSC_OUT_RGB_SD_NARROW;
+
+ gsc_write(cfg, GSC_OUT_CON);
+
+ return 0;
+}
+
+static int gsc_dst_get_buf_seq(struct gsc_context *ctx)
+{
+ u32 cfg, i, buf_num = GSC_REG_SZ;
+ u32 mask = 0x00000001;
+
+ cfg = gsc_read(GSC_OUT_BASE_ADDR_Y_MASK);
+
+ for (i = 0; i < GSC_REG_SZ; i++)
+ if (cfg & (mask << i))
+ buf_num--;
+
+ DRM_DEBUG_KMS("%s:buf_num[%d]\n", __func__, buf_num);
+
+ return buf_num;
+}
+
+static int gsc_dst_set_buf_seq(struct gsc_context *ctx, u32 buf_id,
+ enum drm_exynos_ipp_buf_type buf_type)
+{
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ bool masked;
+ u32 cfg;
+ u32 mask = 0x00000001 << buf_id;
+ unsigned long flags;
+ int ret = 0;
+
+ DRM_DEBUG_KMS("%s:buf_id[%d]buf_type[%d]\n", __func__,
+ buf_id, buf_type);
+
+ spin_lock_irqsave(&ctx->lock, flags);
+
+ /* mask register set */
+ cfg = gsc_read(GSC_OUT_BASE_ADDR_Y_MASK);
+
+ switch (buf_type) {
+ case IPP_BUF_ENQUEUE:
+ masked = false;
+ break;
+ case IPP_BUF_DEQUEUE:
+ masked = true;
+ break;
+ default:
+ dev_err(ippdrv->dev, "invalid buf ctrl parameter.\n");
+ ret = -EINVAL;
+ goto err_unlock;
+ }
+
+ /* sequence id */
+ cfg &= (~mask);
+ cfg |= masked << buf_id;
+ gsc_write(cfg, GSC_OUT_BASE_ADDR_Y_MASK);
+ gsc_write(cfg, GSC_OUT_BASE_ADDR_CB_MASK);
+ gsc_write(cfg, GSC_OUT_BASE_ADDR_CR_MASK);
+
+ /* interrupt enable */
+ if (buf_type == IPP_BUF_ENQUEUE &&
+ gsc_dst_get_buf_seq(ctx) >= GSC_BUF_START)
+ gsc_handle_irq(ctx, true, false, true);
+
+ /* interrupt disable */
+ if (buf_type == IPP_BUF_DEQUEUE &&
+ gsc_dst_get_buf_seq(ctx) <= GSC_BUF_STOP)
+ gsc_handle_irq(ctx, false, false, true);
+
+err_unlock:
+ spin_unlock_irqrestore(&ctx->lock, flags);
+ return ret;
+}
+
+static int gsc_dst_set_addr(struct device *dev,
+ struct drm_exynos_ipp_buf_info *buf_info, u32 buf_id,
+ enum drm_exynos_ipp_buf_type buf_type)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ struct drm_exynos_ipp_cmd_node *c_node = ippdrv->cmd;
+ struct drm_exynos_ipp_property *property;
+
+ if (!c_node) {
+ DRM_ERROR("failed to get c_node.\n");
+ return -EINVAL;
+ }
+
+ property = &c_node->property;
+ if (!property) {
+ DRM_ERROR("failed to get property.\n");
+ return -EINVAL;
+ }
+
+ DRM_DEBUG_KMS("%s:prop_id[%d]buf_id[%d]buf_type[%d]\n", __func__,
+ property->prop_id, buf_id, buf_type);
+
+ if (buf_id > GSC_MAX_DST) {
+ dev_info(ippdrv->dev, "inavlid buf_id %d.\n", buf_id);
+ return -ENOMEM;
+ }
+
+ /* address register set */
+ switch (buf_type) {
+ case IPP_BUF_DEQUEUE:
+ gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_Y],
+ GSC_OUT_BASE_ADDR_Y(buf_id));
+ gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CB],
+ GSC_OUT_BASE_ADDR_CB(buf_id));
+ gsc_write(buf_info->base[EXYNOS_DRM_PLANAR_CR],
+ GSC_OUT_BASE_ADDR_CR(buf_id));
+ break;
+ case IPP_BUF_ENQUEUE:
+ gsc_write(0x0, GSC_OUT_BASE_ADDR_Y(buf_id));
+ gsc_write(0x0, GSC_OUT_BASE_ADDR_CB(buf_id));
+ gsc_write(0x0, GSC_OUT_BASE_ADDR_CR(buf_id));
+ break;
+ default:
+ /* bypass */
+ break;
+ }
+
+ return gsc_dst_set_buf_seq(ctx, buf_id, buf_type);
+}
+
+static struct exynos_drm_ipp_ops gsc_dst_ops = {
+ .set_fmt = gsc_dst_set_fmt,
+ .set_transf = gsc_dst_set_transf,
+ .set_size = gsc_dst_set_size,
+ .set_addr = gsc_dst_set_addr,
+};
+
+static int gsc_power_on(struct gsc_context *ctx, bool enable)
+{
+ DRM_DEBUG_KMS("%s:\n", __func__);
+
+ if (enable) {
+ clk_enable(ctx->gsc_clk);
+ /* ToDo : wb_b_clk */
+ ctx->suspended = false;
+ } else {
+ clk_disable(ctx->gsc_clk);
+ /* ToDo : wb_b_clk */
+ ctx->suspended = true;
+ }
+
+ return 0;
+}
+
+static irqreturn_t gsc_irq_handler(int irq, void *dev_id)
+{
+ struct gsc_context *ctx = dev_id;
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ struct drm_exynos_ipp_cmd_node *c_node = ippdrv->cmd;
+ struct drm_exynos_ipp_event_work *event_work =
+ c_node->event_work;
+ u32 cfg, status;
+ int buf_id = 0;
+
+ DRM_DEBUG_KMS("%s:gsc id[%d]\n", __func__, ctx->id);
+
+ status = gsc_read(GSC_IRQ);
+ if (status & GSC_IRQ_STATUS_OR_IRQ) {
+ dev_err(ippdrv->dev, "occured overflow at %d, status 0x%x.\n",
+ ctx->id, status);
+ return IRQ_NONE;
+ }
+
+ if (status & GSC_IRQ_STATUS_OR_FRM_DONE) {
+ dev_err(ippdrv->dev, "occured frame done at %d, status 0x%x.\n",
+ ctx->id, status);
+ /* ToDo: Frame control */
+ }
+
+ cfg = gsc_read(GSC_IN_BASE_ADDR_Y_MASK);
+ buf_id = GSC_IN_CURR_GET_INDEX(cfg);
+ if (buf_id < 0)
+ return IRQ_HANDLED;
+
+ DRM_DEBUG_KMS("%s:buf_id[%d]\n", __func__, buf_id);
+
+ if (gsc_dst_set_buf_seq(ctx, buf_id, IPP_BUF_DEQUEUE) < 0) {
+ DRM_ERROR("failed to dequeue.\n");
+ return IRQ_HANDLED;
+ }
+
+ event_work->ippdrv = ippdrv;
+ event_work->buf_id[EXYNOS_DRM_OPS_DST] = buf_id;
+ queue_work(ippdrv->event_workq, (struct work_struct *)event_work);
+
+ return IRQ_HANDLED;
+}
+
+static int gsc_init_prop_list(struct drm_exynos_ipp_prop_list **prop_list)
+{
+ DRM_DEBUG_KMS("%s\n", __func__);
+
+ if (!prop_list) {
+ DRM_ERROR("empty prop_list.\n");
+ return -EINVAL;
+ }
+
+ *prop_list = kzalloc(sizeof(**prop_list), GFP_KERNEL);
+ if (!*prop_list) {
+ DRM_ERROR("failed to alloc property list.\n");
+ return -ENOMEM;
+ }
+ /*ToDo : fix supported function list*/
+ (*prop_list)->version = 1;
+ (*prop_list)->writeback = 1;
+ (*prop_list)->refresh_min = 12;
+ (*prop_list)->refresh_max = 60;
+ (*prop_list)->flip = (1 << EXYNOS_DRM_FLIP_VERTICAL) |
+ (1 << EXYNOS_DRM_FLIP_HORIZONTAL);
+ (*prop_list)->degree = (1 << EXYNOS_DRM_DEGREE_0) |
+ (1 << EXYNOS_DRM_DEGREE_90) |
+ (1 << EXYNOS_DRM_DEGREE_180) |
+ (1 << EXYNOS_DRM_DEGREE_270);
+ (*prop_list)->csc = 1;
+ (*prop_list)->crop = 1;
+ (*prop_list)->crop_max.hsize = 8192;
+ (*prop_list)->crop_max.vsize = 8192;
+ (*prop_list)->crop_min.hsize = 32;
+ (*prop_list)->crop_min.vsize = 32;
+ (*prop_list)->scale = 1;
+ (*prop_list)->scale_max.hsize = 4224;
+ (*prop_list)->scale_max.vsize = 4224;
+ (*prop_list)->scale_min.hsize = 32;
+ (*prop_list)->scale_min.vsize = 32;
+
+ return 0;
+}
+
+static int gsc_ippdrv_check_property(struct device *dev,
+ struct drm_exynos_ipp_property *property)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ struct drm_exynos_ipp_prop_list *pp = ippdrv->prop_list;
+ struct drm_exynos_ipp_config *config;
+ struct drm_exynos_pos *pos;
+ struct drm_exynos_sz *sz;
+ bool swap;
+ int i;
+
+ DRM_DEBUG_KMS("%s\n", __func__);
+
+ for_each_ipp_ops(i) {
+ if ((i == EXYNOS_DRM_OPS_SRC) &&
+ (property->cmd == IPP_CMD_WB))
+ continue;
+
+ config = &property->config[i];
+ pos = &config->pos;
+ sz = &config->sz;
+
+ /* check for flip */
+ switch (config->flip) {
+ case EXYNOS_DRM_FLIP_NONE:
+ case EXYNOS_DRM_FLIP_VERTICAL:
+ case EXYNOS_DRM_FLIP_HORIZONTAL:
+ /* No problem */
+ break;
+ default:
+ DRM_ERROR("invalid flip.\n");
+ goto err_property;
+ }
+
+ /* check for degree */
+ switch (config->degree) {
+ case EXYNOS_DRM_DEGREE_90:
+ case EXYNOS_DRM_DEGREE_270:
+ swap = true;
+ break;
+ case EXYNOS_DRM_DEGREE_0:
+ case EXYNOS_DRM_DEGREE_180:
+ swap = false;
+ break;
+ default:
+ DRM_ERROR("invalid degree.\n");
+ goto err_property;
+ }
+
+ /* check for buffer bound */
+ if ((pos->x + pos->w > sz->hsize) ||
+ (pos->y + pos->h > sz->vsize)) {
+ DRM_ERROR("out of buf bound.\n");
+ goto err_property;
+ }
+
+ /* check for crop */
+ if ((i == EXYNOS_DRM_OPS_SRC) && (pp->crop)) {
+ if (swap) {
+ if ((pos->h < pp->crop_min.hsize) ||
+ (sz->vsize > pp->crop_max.hsize) ||
+ (pos->w < pp->crop_min.vsize) ||
+ (sz->hsize > pp->crop_max.vsize)) {
+ DRM_ERROR("out of crop size.\n");
+ goto err_property;
+ }
+ } else {
+ if ((pos->w < pp->crop_min.hsize) ||
+ (sz->hsize > pp->crop_max.hsize) ||
+ (pos->h < pp->crop_min.vsize) ||
+ (sz->vsize > pp->crop_max.vsize)) {
+ DRM_ERROR("out of crop size.\n");
+ goto err_property;
+ }
+ }
+ }
+
+ /* check for scale */
+ if ((i == EXYNOS_DRM_OPS_DST) && (pp->scale)) {
+ if (swap) {
+ if ((pos->h < pp->scale_min.hsize) ||
+ (sz->vsize > pp->scale_max.hsize) ||
+ (pos->w < pp->scale_min.vsize) ||
+ (sz->hsize > pp->scale_max.vsize)) {
+ DRM_ERROR("out of scale size.\n");
+ goto err_property;
+ }
+ } else {
+ if ((pos->w < pp->scale_min.hsize) ||
+ (sz->hsize > pp->scale_max.hsize) ||
+ (pos->h < pp->scale_min.vsize) ||
+ (sz->vsize > pp->scale_max.vsize)) {
+ DRM_ERROR("out of scale size.\n");
+ goto err_property;
+ }
+ }
+ }
+ }
+
+ return 0;
+
+err_property:
+ for_each_ipp_ops(i) {
+ if ((i == EXYNOS_DRM_OPS_SRC) &&
+ (property->cmd == IPP_CMD_WB))
+ continue;
+
+ config = &property->config[i];
+ pos = &config->pos;
+ sz = &config->sz;
+
+ DRM_ERROR("[%s]f[%d]r[%d]pos[%d %d %d %d]sz[%d %d]\n",
+ i ? "dst" : "src", config->flip, config->degree,
+ pos->x, pos->y, pos->w, pos->h,
+ sz->hsize, sz->vsize);
+ }
+
+ return -EINVAL;
+}
+
+
+static int gsc_ippdrv_reset(struct device *dev)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ int ret;
+
+ DRM_DEBUG_KMS("%s\n", __func__);
+
+ /* reset h/w block */
+ ret = gsc_sw_reset(ctx);
+ if (ret < 0) {
+ dev_err(dev, "failed to reset hardware.\n");
+ return ret;
+ }
+
+ memset(&ctx->sc, 0x0, sizeof(ctx->sc));
+
+ return 0;
+}
+
+static int gsc_check_prepare(struct gsc_context *ctx)
+{
+ /* ToDo: check prepare using read register */
+ DRM_DEBUG_KMS("%s\n", __func__);
+
+ return 0;
+}
+
+static int gsc_ippdrv_start(struct device *dev, enum drm_exynos_ipp_cmd cmd)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+ struct drm_exynos_ipp_cmd_node *c_node = ippdrv->cmd;
+ struct drm_exynos_ipp_property *property;
+ struct drm_exynos_ipp_config *config;
+ struct drm_exynos_pos img_pos[EXYNOS_DRM_OPS_MAX];
+ struct drm_exynos_ipp_set_wb set_wb;
+ u32 cfg;
+ int ret, i;
+
+ DRM_DEBUG_KMS("%s:cmd[%d]\n", __func__, cmd);
+
+ if (!c_node) {
+ DRM_ERROR("failed to get c_node.\n");
+ return -EINVAL;
+ }
+
+ property = &c_node->property;
+ if (!property) {
+ DRM_ERROR("failed to get property.\n");
+ return -EINVAL;
+ }
+
+ ret = gsc_check_prepare(ctx);
+ if (ret) {
+ dev_err(dev, "failed to check prepare.\n");
+ return ret;
+ }
+
+ gsc_handle_irq(ctx, true, false, true);
+
+ /* ToDo: window size, prescaler config */
+ for_each_ipp_ops(i) {
+ config = &property->config[i];
+ img_pos[i] = config->pos;
+ }
+
+ switch (cmd) {
+ case IPP_CMD_M2M:
+ /* bypass */
+ break;
+ case IPP_CMD_WB:
+ /* ToDo: need to replace the property structure. */
+ set_wb.enable = 1;
+ set_wb.refresh = property->reserved;
+ gsc_set_gscblk_fimd_wb(ctx, set_wb.enable);
+ exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
+ break;
+ case IPP_CMD_OUTPUT:
+ default:
+ ret = -EINVAL;
+ dev_err(dev, "invalid operations.\n");
+ return ret;
+ }
+
+ ret = gsc_set_prescaler(ctx, &ctx->sc,
+ &img_pos[EXYNOS_DRM_OPS_SRC],
+ &img_pos[EXYNOS_DRM_OPS_DST]);
+ if (ret) {
+ dev_err(dev, "failed to set precalser.\n");
+ return ret;
+ }
+
+ gsc_set_scaler(ctx, &ctx->sc);
+
+ cfg = gsc_read(GSC_ENABLE);
+ cfg |= GSC_ENABLE_ON;
+ gsc_write(cfg, GSC_ENABLE);
+
+ return 0;
+}
+
+static void gsc_ippdrv_stop(struct device *dev, enum drm_exynos_ipp_cmd cmd)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct drm_exynos_ipp_set_wb set_wb = {0, 0};
+ u32 cfg;
+
+ DRM_DEBUG_KMS("%s:cmd[%d]\n", __func__, cmd);
+
+ switch (cmd) {
+ case IPP_CMD_M2M:
+ /* bypass */
+ break;
+ case IPP_CMD_WB:
+ gsc_set_gscblk_fimd_wb(ctx, set_wb.enable);
+ exynos_drm_ippnb_send_event(IPP_SET_WRITEBACK, (void *)&set_wb);
+ break;
+ case IPP_CMD_OUTPUT:
+ default:
+ dev_err(dev, "invalid operations.\n");
+ break;
+ }
+
+ gsc_handle_irq(ctx, false, false, true);
+
+ /* reset sequence */
+ gsc_write(0xff, GSC_OUT_BASE_ADDR_Y_MASK);
+ gsc_write(0xff, GSC_OUT_BASE_ADDR_CB_MASK);
+ gsc_write(0xff, GSC_OUT_BASE_ADDR_CR_MASK);
+
+ cfg = gsc_read(GSC_ENABLE);
+ cfg &= ~GSC_ENABLE_ON;
+ gsc_write(cfg, GSC_ENABLE);
+}
+
+static int __devinit gsc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct gsc_context *ctx;
+ struct resource *res;
+ struct exynos_drm_ippdrv *ippdrv;
+ struct exynos_drm_gsc_pdata *pdata;
+ int ret = -EINVAL;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(dev, "no platform data specified.\n");
+ return -EINVAL;
+ }
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ /* clock control */
+ ctx->gsc_clk = clk_get(dev, "gscl");
+ if (IS_ERR(ctx->gsc_clk)) {
+ dev_err(dev, "failed to get gsc clock.\n");
+ ret = PTR_ERR(ctx->gsc_clk);
+ goto err_ctx;
+ }
+
+ /* resource memory */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "failed to find registers.\n");
+ ret = -ENOENT;
+ goto err_clk;
+ }
+
+ ctx->regs_res = request_mem_region(res->start, resource_size(res),
+ dev_name(dev));
+ if (!ctx->regs_res) {
+ dev_err(dev, "failed to claim register region.\n");
+ ret = -ENOENT;
+ goto err_clk;
+ }
+
+ ctx->regs = ioremap(res->start, resource_size(res));
+ if (!ctx->regs) {
+ dev_err(dev, "failed to map registers.\n");
+ ret = -ENXIO;
+ goto err_req_region;
+ }
+
+ /* resource irq */
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!res) {
+ dev_err(dev, "failed to request irq resource.\n");
+ goto err_get_regs;
+ }
+
+ ctx->irq = res->start;
+ ret = request_threaded_irq(ctx->irq, NULL, gsc_irq_handler,
+ IRQF_ONESHOT, "drm_gsc", ctx);
+ if (ret < 0) {
+ dev_err(dev, "failed to request irq.\n");
+ goto err_get_regs;
+ }
+
+ /* context initailization */
+ ctx->id = pdev->id;
+ ctx->capa = gsc51_capa;
+ if (!ctx->capa) {
+ dev_err(dev, "failed to get capability.\n");
+ goto err_get_irq;
+ }
+
+ /* ToDo: iommu enable */
+ ippdrv = &ctx->ippdrv;
+ ippdrv->dev = dev;
+ ippdrv->ops[EXYNOS_DRM_OPS_SRC] = &gsc_src_ops;
+ ippdrv->ops[EXYNOS_DRM_OPS_DST] = &gsc_dst_ops;
+ ippdrv->check_property = gsc_ippdrv_check_property;
+ ippdrv->reset = gsc_ippdrv_reset;
+ ippdrv->start = gsc_ippdrv_start;
+ ippdrv->stop = gsc_ippdrv_stop;
+ ret = gsc_init_prop_list(&ippdrv->prop_list);
+ if (ret < 0) {
+ dev_err(dev, "failed to init property list.\n");
+ goto err_get_irq;
+ }
+
+ DRM_DEBUG_KMS("%s:id[%d]ippdrv[0x%x]\n", __func__, ctx->id,
+ (int)ippdrv);
+
+ spin_lock_init(&ctx->lock);
+ platform_set_drvdata(pdev, ctx);
+
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
+
+ ret = exynos_drm_ippdrv_register(ippdrv);
+ if (ret < 0) {
+ dev_err(dev, "failed to register drm gsc device.\n");
+ goto err_ippdrv_register;
+ }
+
+ dev_info(&pdev->dev, "drm gsc registered successfully.\n");
+
+ return 0;
+
+err_ippdrv_register:
+ kfree(ippdrv->prop_list);
+ pm_runtime_disable(dev);
+ free_irq(ctx->irq, ctx);
+err_get_irq:
+ free_irq(ctx->irq, ctx);
+err_get_regs:
+ iounmap(ctx->regs);
+err_req_region:
+ release_resource(ctx->regs_res);
+ kfree(ctx->regs_res);
+err_clk:
+ clk_put(ctx->gsc_clk);
+err_ctx:
+ kfree(ctx);
+ return ret;
+}
+
+static int __devexit gsc_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct gsc_context *ctx = get_gsc_context(dev);
+ struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
+
+ kfree(ippdrv->prop_list);
+ exynos_drm_ippdrv_unregister(ippdrv);
+
+ pm_runtime_set_suspended(dev);
+ pm_runtime_disable(dev);
+
+ free_irq(ctx->irq, ctx);
+ iounmap(ctx->regs);
+ release_resource(ctx->regs_res);
+ kfree(ctx->regs_res);
+
+ clk_put(ctx->gsc_clk);
+
+ kfree(ctx);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int gsc_suspend(struct device *dev)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+
+ DRM_DEBUG_KMS("%s:id[%d]\n", __func__, ctx->id);
+ if (pm_runtime_suspended(dev))
+ return 0;
+ /* ToDo */
+ return gsc_power_on(ctx, false);
+}
+
+static int gsc_resume(struct device *dev)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+
+ DRM_DEBUG_KMS("%s:id[%d]\n", __func__, ctx->id);
+ if (!pm_runtime_suspended(dev))
+ return gsc_power_on(ctx, true);
+ /* ToDo */
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_PM_RUNTIME
+static int gsc_runtime_suspend(struct device *dev)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+
+ DRM_DEBUG_KMS("%s:id[%d]\n", __func__, ctx->id);
+ /* ToDo */
+ return gsc_power_on(ctx, false);
+}
+
+static int gsc_runtime_resume(struct device *dev)
+{
+ struct gsc_context *ctx = get_gsc_context(dev);
+
+ DRM_DEBUG_KMS("%s:id[%d]\n", __FILE__, ctx->id);
+ /* ToDo */
+ return gsc_power_on(ctx, true);
+}
+#endif
+
+static const struct dev_pm_ops gsc_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(gsc_suspend, gsc_resume)
+ SET_RUNTIME_PM_OPS(gsc_runtime_suspend, gsc_runtime_resume, NULL)
+};
+
+/* ToDo: need to check use case platform_device_id */
+struct platform_driver gsc_driver = {
+ .probe = gsc_probe,
+ .remove = __devexit_p(gsc_remove),
+ .driver = {
+ .name = "exynos-drm-gsc",
+ .owner = THIS_MODULE,
+ .pm = &gsc_pm_ops,
+ },
+};
+
new file mode 100644
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *
+ * Authors:
+ * Eunchul Kim <chulspro.kim@samsung.com>
+ * Jinyoung Jeon <jy0.jeon@samsung.com>
+ * Sangmin Lee <lsmin.lee@samsung.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _EXYNOS_DRM_GSC_H_
+#define _EXYNOS_DRM_GSC_H_
+
+/* ToDo */
+
+#endif /* _EXYNOS_DRM_GSC_H_ */
+
new file mode 100644
@@ -0,0 +1,295 @@
+/* linux/drivers/gpu/drm/exynos/regs-gsc.h
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Register definition file for Samsung G-Scaler driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef EXYNOS_REGS_GSC_H_
+#define EXYNOS_REGS_GSC_H_
+
+/* SYSCON. GSCBLK_CFG */
+#include <plat/map-base.h>
+#include <plat/cpu.h>
+#define SYSREG_DISP1BLK_CFG (S3C_VA_SYS + 0x0214)
+#define FIFORST_DISP1 (1 << 23)
+#define GSC_OUT_MIXER0 (1 << 7)
+#define GSC_OUT_MIXER0_GSC3 (3 << 5)
+#define SYSREG_GSCBLK_CFG0 (S3C_VA_SYS + 0x0220)
+#define GSC_OUT_DST_FIMD_SEL(x) (1 << (8 + 2 * (x)))
+#define GSC_OUT_DST_MXR_SEL(x) (2 << (8 + 2 * (x)))
+#define GSC_PXLASYNC_RST(x) (1 << (x))
+#define PXLASYNC_LO_MASK_CAMIF_TOP (1 << 20)
+#define SYSREG_GSCBLK_CFG1 (S3C_VA_SYS + 0x0224)
+#define GSC_BLK_DISP1WB_DEST(x) (x << 10)
+#define GSC_BLK_SW_RESET_WB_DEST(x) (1 << (18 + x))
+#define GSC_BLK_PXLASYNC_LO_MASK_WB(x) (0 << (14 + x))
+#define GSC_BLK_GSCL_WB_IN_SRC_SEL(x) (1 << (2 * x))
+#define SYSREG_GSCBLK_CFG2 (S3C_VA_SYS + 0x2000)
+#define PXLASYNC_LO_MASK_CAMIF_GSCL(x) (1 << (x))
+
+/* G-Scaler enable */
+#define GSC_ENABLE 0x00
+#define GSC_ENABLE_PP_UPDATE_TIME_MASK (1 << 9)
+#define GSC_ENABLE_PP_UPDATE_TIME_CURR (0 << 9)
+#define GSC_ENABLE_PP_UPDATE_TIME_EOPAS (1 << 9)
+#define GSC_ENABLE_CLK_GATE_MODE_MASK (1 << 8)
+#define GSC_ENABLE_CLK_GATE_MODE_FREE (1 << 8)
+#define GSC_ENABLE_IPC_MODE_MASK (1 << 7)
+#define GSC_ENABLE_NORM_MODE (0 << 7)
+#define GSC_ENABLE_IPC_MODE (1 << 7)
+#define GSC_ENABLE_PP_UPDATE_MODE_MASK (1 << 6)
+#define GSC_ENABLE_PP_UPDATE_FIRE_MODE (1 << 6)
+#define GSC_ENABLE_IN_PP_UPDATE (1 << 5)
+#define GSC_ENABLE_ON_CLEAR_MASK (1 << 4)
+#define GSC_ENABLE_ON_CLEAR_ONESHOT (1 << 4)
+#define GSC_ENABLE_QOS_ENABLE (1 << 3)
+#define GSC_ENABLE_OP_STATUS (1 << 2)
+#define GSC_ENABLE_SFR_UPDATE (1 << 1)
+#define GSC_ENABLE_ON (1 << 0)
+
+/* G-Scaler S/W reset */
+#define GSC_SW_RESET 0x04
+#define GSC_SW_RESET_SRESET (1 << 0)
+
+/* G-Scaler IRQ */
+#define GSC_IRQ 0x08
+#define GSC_IRQ_STATUS_OR_IRQ (1 << 17)
+#define GSC_IRQ_STATUS_OR_FRM_DONE (1 << 16)
+#define GSC_IRQ_OR_MASK (1 << 2)
+#define GSC_IRQ_FRMDONE_MASK (1 << 1)
+#define GSC_IRQ_ENABLE (1 << 0)
+
+/* G-Scaler input control */
+#define GSC_IN_CON 0x10
+#define GSC_IN_CHROM_STRIDE_SEL_MASK (1 << 20)
+#define GSC_IN_CHROM_STRIDE_SEPAR (1 << 20)
+#define GSC_IN_RB_SWAP_MASK (1 << 19)
+#define GSC_IN_RB_SWAP (1 << 19)
+#define GSC_IN_ROT_MASK (7 << 16)
+#define GSC_IN_ROT_270 (7 << 16)
+#define GSC_IN_ROT_90_YFLIP (6 << 16)
+#define GSC_IN_ROT_90_XFLIP (5 << 16)
+#define GSC_IN_ROT_90 (4 << 16)
+#define GSC_IN_ROT_180 (3 << 16)
+#define GSC_IN_ROT_YFLIP (2 << 16)
+#define GSC_IN_ROT_XFLIP (1 << 16)
+#define GSC_IN_RGB_TYPE_MASK (3 << 14)
+#define GSC_IN_RGB_HD_WIDE (3 << 14)
+#define GSC_IN_RGB_HD_NARROW (2 << 14)
+#define GSC_IN_RGB_SD_WIDE (1 << 14)
+#define GSC_IN_RGB_SD_NARROW (0 << 14)
+#define GSC_IN_YUV422_1P_ORDER_MASK (1 << 13)
+#define GSC_IN_YUV422_1P_ORDER_LSB_Y (0 << 13)
+#define GSC_IN_YUV422_1P_OEDER_LSB_C (1 << 13)
+#define GSC_IN_CHROMA_ORDER_MASK (1 << 12)
+#define GSC_IN_CHROMA_ORDER_CBCR (0 << 12)
+#define GSC_IN_CHROMA_ORDER_CRCB (1 << 12)
+#define GSC_IN_FORMAT_MASK (7 << 8)
+#define GSC_IN_XRGB8888 (0 << 8)
+#define GSC_IN_RGB565 (1 << 8)
+#define GSC_IN_YUV420_2P (2 << 8)
+#define GSC_IN_YUV420_3P (3 << 8)
+#define GSC_IN_YUV422_1P (4 << 8)
+#define GSC_IN_YUV422_2P (5 << 8)
+#define GSC_IN_YUV422_3P (6 << 8)
+#define GSC_IN_TILE_TYPE_MASK (1 << 4)
+#define GSC_IN_TILE_C_16x8 (0 << 4)
+#define GSC_IN_TILE_C_16x16 (1 << 4)
+#define GSC_IN_TILE_MODE (1 << 3)
+#define GSC_IN_LOCAL_SEL_MASK (3 << 1)
+#define GSC_IN_LOCAL_CAM3 (3 << 1)
+#define GSC_IN_LOCAL_FIMD_WB (2 << 1)
+#define GSC_IN_LOCAL_CAM1 (1 << 1)
+#define GSC_IN_LOCAL_CAM0 (0 << 1)
+#define GSC_IN_PATH_MASK (1 << 0)
+#define GSC_IN_PATH_LOCAL (1 << 0)
+#define GSC_IN_PATH_MEMORY (0 << 0)
+
+/* G-Scaler source image size */
+#define GSC_SRCIMG_SIZE 0x14
+#define GSC_SRCIMG_HEIGHT_MASK (0x1fff << 16)
+#define GSC_SRCIMG_HEIGHT(x) ((x) << 16)
+#define GSC_SRCIMG_WIDTH_MASK (0x3fff << 0)
+#define GSC_SRCIMG_WIDTH(x) ((x) << 0)
+
+/* G-Scaler source image offset */
+#define GSC_SRCIMG_OFFSET 0x18
+#define GSC_SRCIMG_OFFSET_Y_MASK (0x1fff << 16)
+#define GSC_SRCIMG_OFFSET_Y(x) ((x) << 16)
+#define GSC_SRCIMG_OFFSET_X_MASK (0x1fff << 0)
+#define GSC_SRCIMG_OFFSET_X(x) ((x) << 0)
+
+/* G-Scaler cropped source image size */
+#define GSC_CROPPED_SIZE 0x1C
+#define GSC_CROPPED_HEIGHT_MASK (0x1fff << 16)
+#define GSC_CROPPED_HEIGHT(x) ((x) << 16)
+#define GSC_CROPPED_WIDTH_MASK (0x1fff << 0)
+#define GSC_CROPPED_WIDTH(x) ((x) << 0)
+
+/* G-Scaler output control */
+#define GSC_OUT_CON 0x20
+#define GSC_OUT_GLOBAL_ALPHA_MASK (0xff << 24)
+#define GSC_OUT_GLOBAL_ALPHA(x) ((x) << 24)
+#define GSC_OUT_CHROM_STRIDE_SEL_MASK (1 << 13)
+#define GSC_OUT_CHROM_STRIDE_SEPAR (1 << 13)
+#define GSC_OUT_RB_SWAP_MASK (1 << 12)
+#define GSC_OUT_RB_SWAP (1 << 12)
+#define GSC_OUT_RGB_TYPE_MASK (3 << 10)
+#define GSC_OUT_RGB_HD_NARROW (3 << 10)
+#define GSC_OUT_RGB_HD_WIDE (2 << 10)
+#define GSC_OUT_RGB_SD_NARROW (1 << 10)
+#define GSC_OUT_RGB_SD_WIDE (0 << 10)
+#define GSC_OUT_YUV422_1P_ORDER_MASK (1 << 9)
+#define GSC_OUT_YUV422_1P_ORDER_LSB_Y (0 << 9)
+#define GSC_OUT_YUV422_1P_OEDER_LSB_C (1 << 9)
+#define GSC_OUT_CHROMA_ORDER_MASK (1 << 8)
+#define GSC_OUT_CHROMA_ORDER_CBCR (0 << 8)
+#define GSC_OUT_CHROMA_ORDER_CRCB (1 << 8)
+#define GSC_OUT_FORMAT_MASK (7 << 4)
+#define GSC_OUT_XRGB8888 (0 << 4)
+#define GSC_OUT_RGB565 (1 << 4)
+#define GSC_OUT_YUV420_2P (2 << 4)
+#define GSC_OUT_YUV420_3P (3 << 4)
+#define GSC_OUT_YUV422_1P (4 << 4)
+#define GSC_OUT_YUV422_2P (5 << 4)
+#define GSC_OUT_YUV444 (7 << 4)
+#define GSC_OUT_TILE_TYPE_MASK (1 << 2)
+#define GSC_OUT_TILE_C_16x8 (0 << 2)
+#define GSC_OUT_TILE_C_16x16 (1 << 2)
+#define GSC_OUT_TILE_MODE (1 << 1)
+#define GSC_OUT_PATH_MASK (1 << 0)
+#define GSC_OUT_PATH_LOCAL (1 << 0)
+#define GSC_OUT_PATH_MEMORY (0 << 0)
+
+/* G-Scaler scaled destination image size */
+#define GSC_SCALED_SIZE 0x24
+#define GSC_SCALED_HEIGHT_MASK (0x1fff << 16)
+#define GSC_SCALED_HEIGHT(x) ((x) << 16)
+#define GSC_SCALED_WIDTH_MASK (0x1fff << 0)
+#define GSC_SCALED_WIDTH(x) ((x) << 0)
+
+/* G-Scaler pre scale ratio */
+#define GSC_PRE_SCALE_RATIO 0x28
+#define GSC_PRESC_SHFACTOR_MASK (7 << 28)
+#define GSC_PRESC_SHFACTOR(x) ((x) << 28)
+#define GSC_PRESC_V_RATIO_MASK (7 << 16)
+#define GSC_PRESC_V_RATIO(x) ((x) << 16)
+#define GSC_PRESC_H_RATIO_MASK (7 << 0)
+#define GSC_PRESC_H_RATIO(x) ((x) << 0)
+
+/* G-Scaler main scale horizontal ratio */
+#define GSC_MAIN_H_RATIO 0x2C
+#define GSC_MAIN_H_RATIO_MASK (0xfffff << 0)
+#define GSC_MAIN_H_RATIO_VALUE(x) ((x) << 0)
+
+/* G-Scaler main scale vertical ratio */
+#define GSC_MAIN_V_RATIO 0x30
+#define GSC_MAIN_V_RATIO_MASK (0xfffff << 0)
+#define GSC_MAIN_V_RATIO_VALUE(x) ((x) << 0)
+
+/* G-Scaler input chrominance stride */
+#define GSC_IN_CHROM_STRIDE 0x3C
+#define GSC_IN_CHROM_STRIDE_MASK (0x3fff << 0)
+#define GSC_IN_CHROM_STRIDE_VALUE(x) ((x) << 0)
+
+/* G-Scaler destination image size */
+#define GSC_DSTIMG_SIZE 0x40
+#define GSC_DSTIMG_HEIGHT_MASK (0x1fff << 16)
+#define GSC_DSTIMG_HEIGHT(x) ((x) << 16)
+#define GSC_DSTIMG_WIDTH_MASK (0x1fff << 0)
+#define GSC_DSTIMG_WIDTH(x) ((x) << 0)
+
+/* G-Scaler destination image offset */
+#define GSC_DSTIMG_OFFSET 0x44
+#define GSC_DSTIMG_OFFSET_Y_MASK (0x1fff << 16)
+#define GSC_DSTIMG_OFFSET_Y(x) ((x) << 16)
+#define GSC_DSTIMG_OFFSET_X_MASK (0x1fff << 0)
+#define GSC_DSTIMG_OFFSET_X(x) ((x) << 0)
+
+/* G-Scaler output chrominance stride */
+#define GSC_OUT_CHROM_STRIDE 0x48
+#define GSC_OUT_CHROM_STRIDE_MASK (0x3fff << 0)
+#define GSC_OUT_CHROM_STRIDE_VALUE(x) ((x) << 0)
+
+/* G-Scaler input y address mask */
+#define GSC_IN_BASE_ADDR_Y_MASK 0x4C
+/* G-Scaler input y base address */
+#define GSC_IN_BASE_ADDR_Y(n) (0x50 + (n) * 0x4)
+/* G-Scaler input y base current address */
+#define GSC_IN_BASE_ADDR_Y_CUR(n) (0x60 + (n) * 0x4)
+
+/* G-Scaler input cb address mask */
+#define GSC_IN_BASE_ADDR_CB_MASK 0x7C
+/* G-Scaler input cb base address */
+#define GSC_IN_BASE_ADDR_CB(n) (0x80 + (n) * 0x4)
+/* G-Scaler input cb base current address */
+#define GSC_IN_BASE_ADDR_CB_CUR(n) (0x90 + (n) * 0x4)
+
+/* G-Scaler input cr address mask */
+#define GSC_IN_BASE_ADDR_CR_MASK 0xAC
+/* G-Scaler input cr base address */
+#define GSC_IN_BASE_ADDR_CR(n) (0xB0 + (n) * 0x4)
+/* G-Scaler input cr base current address */
+#define GSC_IN_BASE_ADDR_CR_CUR(n) (0xC0 + (n) * 0x4)
+
+/* G-Scaler input address mask */
+#define GSC_IN_CURR_ADDR_INDEX (0xf << 24)
+#define GSC_IN_CURR_GET_INDEX(x) ((x) >> 24)
+#define GSC_IN_BASE_ADDR_PINGPONG(x) ((x) << 16)
+#define GSC_IN_BASE_ADDR_MASK (0xff << 0)
+
+/* G-Scaler output y address mask */
+#define GSC_OUT_BASE_ADDR_Y_MASK 0x10C
+/* G-Scaler output y base address */
+#define GSC_OUT_BASE_ADDR_Y(n) (0x110 + (n) * 0x4)
+
+/* G-Scaler output cb address mask */
+#define GSC_OUT_BASE_ADDR_CB_MASK 0x15C
+/* G-Scaler output cb base address */
+#define GSC_OUT_BASE_ADDR_CB(n) (0x160 + (n) * 0x4)
+
+/* G-Scaler output cr address mask */
+#define GSC_OUT_BASE_ADDR_CR_MASK 0x1AC
+/* G-Scaler output cr base address */
+#define GSC_OUT_BASE_ADDR_CR(n) (0x1B0 + (n) * 0x4)
+
+/* G-Scaler output address mask */
+#define GSC_OUT_CURR_ADDR_INDEX (0xf << 24)
+#define GSC_OUT_CURR_GET_INDEX(x) ((x) >> 24)
+#define GSC_OUT_BASE_ADDR_PINGPONG(x) ((x) << 16)
+#define GSC_OUT_BASE_ADDR_MASK (0xffff << 0)
+
+/* G-Scaler horizontal scaling filter */
+#define GSC_HCOEF(n, s, x) (0x300 + (n) * 0x4 + (s) * 0x30 + (x) * 0x300)
+
+/* G-Scaler vertical scaling filter */
+#define GSC_VCOEF(n, s, x) (0x200 + (n) * 0x4 + (s) * 0x30 + (x) * 0x300)
+
+/* G-Scaler BUS control */
+#define GSC_BUSCON 0xA78
+#define GSC_BUSCON_INT_TIME_MASK (1 << 8)
+#define GSC_BUSCON_INT_DATA_TRANS (0 << 8)
+#define GSC_BUSCON_INT_AXI_RESPONSE (1 << 8)
+#define GSC_BUSCON_AWCACHE(x) ((x) << 4)
+#define GSC_BUSCON_ARCACHE(x) ((x) << 0)
+
+/* G-Scaler V position */
+#define GSC_VPOSITION 0xA7C
+#define GSC_VPOS_F(x) ((x) << 0)
+
+
+/* G-Scaler clock initial count */
+#define GSC_CLK_INIT_COUNT 0xC00
+#define GSC_CLK_GATE_MODE_INIT_CNT(x) ((x) << 0)
+
+/* G-Scaler clock snoop count */
+#define GSC_CLK_SNOOP_COUNT 0xC04
+#define GSC_CLK_GATE_MODE_SNOOP_CNT(x) ((x) << 0)
+
+#endif /* EXYNOS_REGS_GSC_H_ */