* [PATCH v3 2/8] v4l: Add driver for Samsung S3C/S5P SoC video postprocessor
[not found] <1279902083-21250-1-git-send-email-s.nawrocki@samsung.com>
2010-07-23 16:21 ` [PATCH v3 1/8] ARM: Samsung: Add register definitions for Samsung S5P SoC camera interface Sylwester Nawrocki
@ 2010-07-23 16:21 ` Sylwester Nawrocki
1 sibling, 0 replies; 12+ messages in thread
From: Sylwester Nawrocki @ 2010-07-23 16:21 UTC (permalink / raw)
To: linux-samsung-soc, linux-arm-kernel
Cc: p.osciak, m.szyprowski, kyungmin.park, kgene.kim,
Sylwester Nawrocki, linux-media
This driver exports a video device node per each camera interface/
video postprocessor (FIMC) device contained in Samsung S3C/S5P SoC series.
The driver is based on v4l2-mem2mem framework.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Pawel Osciak <p.osciak@samsung.com>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
drivers/media/video/Kconfig | 20 +
drivers/media/video/Makefile | 1 +
drivers/media/video/samsung/fimc/Makefile | 3 +
drivers/media/video/samsung/fimc/fimc-core.c | 1568 ++++++++++++++++++++++++++
drivers/media/video/samsung/fimc/fimc-core.h | 490 ++++++++
drivers/media/video/samsung/fimc/fimc-reg.c | 571 ++++++++++
include/linux/videodev2.h | 1 +
7 files changed, 2654 insertions(+), 0 deletions(-)
create mode 100644 drivers/media/video/samsung/fimc/Makefile
create mode 100644 drivers/media/video/samsung/fimc/fimc-core.c
create mode 100644 drivers/media/video/samsung/fimc/fimc-core.h
create mode 100644 drivers/media/video/samsung/fimc/fimc-reg.c
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index bdbc9d3..5895646 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -969,6 +969,16 @@ config VIDEO_OMAP2
---help---
This is a v4l2 driver for the TI OMAP2 camera capture interface
+config VIDEO_SAMSUNG_FIMC
+ tristate "Samsung S3C/S5P FIMC (video postprocessor) driver"
+ depends on VIDEO_DEV && VIDEO_V4L2
+ select VIDEOBUF_DMA_CONTIG
+ select V4L2_MEM2MEM_DEV
+ default n
+ help
+ This is a v4l2 driver for the S3C/S5P camera interface
+ (video postprocessor).
+
#
# USB Multimedia device configuration
#
@@ -1150,4 +1160,14 @@ config VIDEO_MEM2MEM_TESTDEV
This is a virtual test device for the memory-to-memory driver
framework.
+config VIDEO_SAMSUNG_FIMC
+ tristate "Samsung S3C/S5P FIMC (video postprocessor) driver"
+ depends on VIDEO_DEV && VIDEO_V4L2
+ select VIDEOBUF_DMA_CONTIG
+ select V4L2_MEM2MEM_DEV
+ default n
+ help
+ This is a v4l2 driver for the S3C/S5P camera interface
+ (video postprocessor)
+
endif # V4L_MEM2MEM_DRIVERS
diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
index cc93859..e4c2e1f 100644
--- a/drivers/media/video/Makefile
+++ b/drivers/media/video/Makefile
@@ -165,6 +165,7 @@ obj-$(CONFIG_VIDEO_MX1) += mx1_camera.o
obj-$(CONFIG_VIDEO_MX3) += mx3_camera.o
obj-$(CONFIG_VIDEO_PXA27x) += pxa_camera.o
obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o
+obj-$(CONFIG_VIDEO_SAMSUNG_FIMC) += samsung/fimc/
obj-$(CONFIG_ARCH_DAVINCI) += davinci/
diff --git a/drivers/media/video/samsung/fimc/Makefile b/drivers/media/video/samsung/fimc/Makefile
new file mode 100644
index 0000000..7804ebf
--- /dev/null
+++ b/drivers/media/video/samsung/fimc/Makefile
@@ -0,0 +1,3 @@
+
+obj-$(CONFIG_VIDEO_SAMSUNG_FIMC) := samsung-fimc.o
+samsung-fimc-y := fimc-core.o fimc-reg.o
diff --git a/drivers/media/video/samsung/fimc/fimc-core.c b/drivers/media/video/samsung/fimc/fimc-core.c
new file mode 100644
index 0000000..a108b1b
--- /dev/null
+++ b/drivers/media/video/samsung/fimc/fimc-core.c
@@ -0,0 +1,1568 @@
+/*
+ * S5P camera interface (video postprocessor) driver
+ *
+ * Copyright (c) 2010 Samsung Electronics
+ *
+ * Sylwester Nawrocki, <s.nawrocki@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 Foundiation. either version 2 of the License,
+ * or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/bug.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/list.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf-dma-contig.h>
+
+#include "fimc-core.h"
+
+static char *fimc_clock_name[NUM_FIMC_CLOCKS] = { "sclk_fimc", "fimc" };
+
+struct fimc_fmt fimc_formats[] = {
+ {
+ .name = "RGB565",
+ .fourcc = V4L2_PIX_FMT_RGB565X,
+ .depth = 16,
+ .color = S5P_FIMC_RGB565,
+ .buff_cnt = 1,
+ .planes_cnt = 1
+ }, {
+ .name = "RGB666",
+ .fourcc = V4L2_PIX_FMT_RGB666,
+ .depth = 32,
+ .color = S5P_FIMC_RGB666,
+ .buff_cnt = 1,
+ .planes_cnt = 1
+ }, {
+ .name = "XRGB-8-8-8-8, 24 bpp",
+ .fourcc = V4L2_PIX_FMT_RGB24,
+ .depth = 32,
+ .color = S5P_FIMC_RGB888,
+ .buff_cnt = 1,
+ .planes_cnt = 1
+ }, {
+ .name = "YUV 4:2:2 packed, YCbYCr",
+ .fourcc = V4L2_PIX_FMT_YUYV,
+ .depth = 16,
+ .color = S5P_FIMC_YCBYCR422,
+ .buff_cnt = 1,
+ .planes_cnt = 1
+ }, {
+ .name = "YUV 4:2:2 packed, CbYCrY",
+ .fourcc = V4L2_PIX_FMT_UYVY,
+ .depth = 16,
+ .color = S5P_FIMC_CBYCRY422,
+ .buff_cnt = 1,
+ .planes_cnt = 1
+ }, {
+ .name = "YUV 4:2:2 packed, CrYCbY",
+ .fourcc = V4L2_PIX_FMT_VYUY,
+ .depth = 16,
+ .color = S5P_FIMC_CRYCBY422,
+ .buff_cnt = 1,
+ .planes_cnt = 1
+ }, {
+ .name = "YUV 4:2:2 packed, YCrYCb",
+ .fourcc = V4L2_PIX_FMT_YVYU,
+ .depth = 16,
+ .color = S5P_FIMC_YCRYCB422,
+ .buff_cnt = 1,
+ .planes_cnt = 1
+ }, {
+ .name = "YUV 4:2:2 planar, Y/Cb/Cr",
+ .fourcc = V4L2_PIX_FMT_YUV422P,
+ .depth = 12,
+ .color = S5P_FIMC_YCBCR422,
+ .buff_cnt = 1,
+ .planes_cnt = 3
+ }, {
+ .name = "YUV 4:2:2 planar, Y/CbCr",
+ .fourcc = V4L2_PIX_FMT_NV16,
+ .depth = 16,
+ .color = S5P_FIMC_YCBCR422,
+ .buff_cnt = 1,
+ .planes_cnt = 2
+ }, {
+ .name = "YUV 4:2:2 planar, Y/CrCb",
+ .fourcc = V4L2_PIX_FMT_NV61,
+ .depth = 16,
+ .color = S5P_FIMC_RGB565,
+ .buff_cnt = 1,
+ .planes_cnt = 2
+ }, {
+ .name = "YUV 4:2:0 planar, YCbCr",
+ .fourcc = V4L2_PIX_FMT_YUV420,
+ .depth = 12,
+ .color = S5P_FIMC_YCBCR420,
+ .buff_cnt = 1,
+ .planes_cnt = 3
+ }, {
+ .name = "YUV 4:2:0 planar, Y/CbCr",
+ .fourcc = V4L2_PIX_FMT_NV12,
+ .depth = 12,
+ .color = S5P_FIMC_YCBCR420,
+ .buff_cnt = 1,
+ .planes_cnt = 2
+ }
+ };
+
+static struct v4l2_queryctrl fimc_ctrls[] = {
+ {
+ .id = V4L2_CID_HFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Horizontal flip",
+ .minimum = 0,
+ .maximum = 1,
+ .default_value = 0,
+ },
+ {
+ .id = V4L2_CID_VFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Vertical flip",
+ .minimum = 0,
+ .maximum = 1,
+ .default_value = 0,
+ },
+ {
+ .id = V4L2_CID_ROTATE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Rotation (CCW)",
+ .minimum = 0,
+ .maximum = 270,
+ .step = 90,
+ .default_value = 0,
+ },
+};
+
+
+static struct v4l2_queryctrl *get_ctrl(int id)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(fimc_ctrls); ++i)
+ if (id == fimc_ctrls[i].id)
+ return &fimc_ctrls[i];
+ return NULL;
+}
+
+int fimc_check_scaler_ratio(struct v4l2_rect *r, struct fimc_frame *f)
+{
+ int ret = 0;
+ if (r->width > f->width) {
+ if (f->width > (r->width * SCALER_MAX_HRATIO))
+ ret = 1;
+ } else {
+ if ((f->width * SCALER_MAX_HRATIO) < r->width)
+ ret = 1;
+ }
+
+ if (r->height > f->height) {
+ if (f->height > (r->height * SCALER_MAX_VRATIO))
+ ret = 1;
+ } else {
+ if ((f->height * SCALER_MAX_VRATIO) < r->height)
+ ret = 1;
+ }
+
+ return ret;
+}
+
+static int fimc_get_scaler_factor(u32 src, u32 tar, u32 *ratio, u32 *shift)
+{
+ if (src >= tar * 64) {
+ return -EINVAL;
+ } else if (src >= tar * 32) {
+ *ratio = 32;
+ *shift = 5;
+ } else if (src >= tar * 16) {
+ *ratio = 16;
+ *shift = 4;
+ } else if (src >= tar * 8) {
+ *ratio = 8;
+ *shift = 3;
+ } else if (src >= tar * 4) {
+ *ratio = 4;
+ *shift = 2;
+ } else if (src >= tar * 2) {
+ *ratio = 2;
+ *shift = 1;
+ } else {
+ *ratio = 1;
+ *shift = 0;
+ }
+
+ return 0;
+}
+
+int fimc_set_scaler_info(struct fimc_ctx *ctx)
+{
+ struct fimc_scaler *sc = &ctx->scaler;
+ struct fimc_frame *s_frame = &ctx->s_frame;
+ struct fimc_frame *d_frame = &ctx->d_frame;
+ int tx, ty, sx, sy;
+ int ret;
+
+ tx = d_frame->width;
+ ty = d_frame->height;
+ if (tx <= 0 || ty <= 0) {
+ v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev,
+ "invalid target size: %d x %d", tx, ty);
+ return -EINVAL;
+ }
+
+ sx = s_frame->width;
+ sy = s_frame->height;
+ if (sx <= 0 || sy <= 0) {
+ err("invalid source size: %d x %d", sx, sy);
+ return -EINVAL;
+ }
+
+ sc->real_width = sx;
+ sc->real_height = sy;
+ dbg("sx= %d, sy= %d, tx= %d, ty= %d", sx, sy, tx, ty);
+
+ ret = fimc_get_scaler_factor(sx, tx, &sc->pre_hratio, &sc->hfactor);
+ if (ret)
+ return ret;
+
+ ret = fimc_get_scaler_factor(sy, ty, &sc->pre_vratio, &sc->vfactor);
+ if (ret)
+ return ret;
+
+ sc->pre_dst_width = sx / sc->pre_hratio;
+ sc->pre_dst_height = sy / sc->pre_vratio;
+
+ sc->main_hratio = (sx << 8) / (tx << sc->hfactor);
+ sc->main_vratio = (sy << 8) / (ty << sc->vfactor);
+
+ sc->scaleup_h = (tx >= sx) ? 1 : 0;
+ sc->scaleup_v = (ty >= sy) ? 1 : 0;
+
+ /* check to see if input and output size/format differ */
+ if (s_frame->fmt->color == d_frame->fmt->color
+ && s_frame->width == d_frame->width
+ && s_frame->height == d_frame->height)
+ sc->copy_mode = 1;
+ else
+ sc->copy_mode = 0;
+
+ return 0;
+}
+
+
+static irqreturn_t fimc_isr(int irq, void *priv)
+{
+ struct fimc_vid_buffer *src_buf, *dst_buf;
+ struct fimc_dev *fimc = (struct fimc_dev *)priv;
+ struct fimc_ctx *ctx;
+
+ BUG_ON(!fimc);
+ fimc_hw_clear_irq(fimc);
+
+ spin_lock(&fimc->slock);
+
+ if (test_and_clear_bit(ST_M2M_PEND, &fimc->state)) {
+ ctx = v4l2_m2m_get_curr_priv(fimc->m2m.m2m_dev);
+ if (!ctx || !ctx->m2m_ctx)
+ goto isr_unlock;
+ src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+ dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
+ if (src_buf && dst_buf) {
+ spin_lock(&fimc->irqlock);
+ src_buf->vb.state = dst_buf->vb.state = VIDEOBUF_DONE;
+ wake_up(&src_buf->vb.done);
+ wake_up(&dst_buf->vb.done);
+ spin_unlock(&fimc->irqlock);
+ v4l2_m2m_job_finish(fimc->m2m.m2m_dev, ctx->m2m_ctx);
+ }
+ }
+
+isr_unlock:
+ spin_unlock(&fimc->slock);
+ return IRQ_HANDLED;
+}
+
+static void fimc_dma_run(void *priv)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ unsigned long flags;
+ u32 ret;
+
+ if (WARN(!ctx, "null hardware context"))
+ return;
+
+ spin_lock_irqsave(&ctx->slock, flags);
+ set_bit(ST_M2M_PEND, &fimc->state);
+
+ ctx->state |= (FIMC_SRC_ADDR | FIMC_DST_ADDR);
+ ret = fimc_prepare_config(ctx, ctx->state);
+ if (ret) {
+ err("general configuration error");
+ goto dma_unlock;
+ }
+
+ if (fimc->m2m.ctx != ctx)
+ ctx->state |= FIMC_PARAMS;
+
+ fimc_hw_set_input_addr(fimc, &ctx->s_frame.paddr);
+
+ if (ctx->state & FIMC_PARAMS) {
+ fimc_hw_set_input_path(ctx);
+ fimc_hw_set_in_dma(ctx);
+ if (fimc_set_scaler_info(ctx)) {
+ err("scaler configuration error");
+ goto dma_unlock;
+ }
+ fimc_hw_set_prescaler(ctx);
+ fimc_hw_set_scaler(ctx);
+ fimc_hw_set_target_format(ctx);
+ fimc_hw_set_rotation(ctx);
+ fimc_hw_set_effect(ctx);
+ }
+
+ fimc_hw_set_output_path(ctx);
+ if (ctx->state & (FIMC_DST_ADDR | FIMC_PARAMS))
+ fimc_hw_set_output_addr(fimc, &ctx->d_frame.paddr);
+
+ if (ctx->state & FIMC_PARAMS)
+ fimc_hw_set_out_dma(ctx);
+
+ if (ctx->scaler.enabled)
+ fimc_hw_start_scaler(fimc);
+ fimc_hw_en_capture(ctx);
+
+ ctx->state = 0;
+ fimc_hw_start_in_dma(fimc);
+
+ fimc->m2m.ctx = ctx;
+
+dma_unlock:
+ spin_unlock_irqrestore(&ctx->slock, flags);
+}
+
+/* Nothing done in job_abort. */
+static void fimc_job_abort(void *priv) {}
+
+/* Set order for 1 and 2 plane YCBCR 4:2:2 formats. */
+static void fimc_set_yuv_order(struct fimc_ctx *ctx)
+{
+ /* The one only mode supported in SoC. */
+ ctx->in_order_2p = S5P_FIMC_LSB_CRCB;
+ ctx->out_order_2p = S5P_FIMC_LSB_CRCB;
+
+ /* Set order for 1 plane input formats. */
+ switch (ctx->s_frame.fmt->color) {
+ case S5P_FIMC_YCRYCB422:
+ ctx->in_order_1p = S5P_FIMC_IN_YCRYCB;
+ break;
+ case S5P_FIMC_CBYCRY422:
+ ctx->in_order_1p = S5P_FIMC_IN_CBYCRY;
+ break;
+ case S5P_FIMC_CRYCBY422:
+ ctx->in_order_1p = S5P_FIMC_IN_CRYCBY;
+ break;
+ case S5P_FIMC_YCBYCR422:
+ default:
+ ctx->in_order_1p = S5P_FIMC_IN_YCBYCR;
+ break;
+ }
+ dbg("ctx->in_order_1p= %d", ctx->in_order_1p);
+
+ switch (ctx->d_frame.fmt->color) {
+ case S5P_FIMC_YCRYCB422:
+ ctx->out_order_1p = S5P_FIMC_OUT_YCRYCB;
+ break;
+ case S5P_FIMC_CBYCRY422:
+ ctx->out_order_1p = S5P_FIMC_OUT_CBYCRY;
+ break;
+ case S5P_FIMC_CRYCBY422:
+ ctx->out_order_1p = S5P_FIMC_OUT_CRYCBY;
+ break;
+ case S5P_FIMC_YCBYCR422:
+ default:
+ ctx->out_order_1p = S5P_FIMC_OUT_YCBYCR;
+ break;
+ }
+ dbg("ctx->out_order_1p= %d", ctx->out_order_1p);
+}
+
+/**
+ * fimc_prepare_config - check dimensions, operation and color mode
+ * and pre-calculate offset and the scaling coefficients.
+ *
+ * @ctx: hardware context information
+ * @flags: flags indicating which parameters to check/update
+ *
+ * Return: 0 if dimensions are valid or non zero otherwise.
+ */
+int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
+{
+ struct fimc_frame *s_frame, *d_frame;
+ struct fimc_vid_buffer *buf = NULL;
+ struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
+ int ret = 0;
+
+ s_frame = &ctx->s_frame;
+ d_frame = &ctx->d_frame;
+
+ if (flags & FIMC_PARAMS) {
+ if ((ctx->out_path == FIMC_DMA) &&
+ (ctx->rotation == 90 || ctx->rotation == 270)) {
+ swap(d_frame->f_width, d_frame->f_height);
+ swap(d_frame->width, d_frame->height);
+ }
+
+ /* Prepare the output offset ratios for scaler. */
+ d_frame->dma_offset.y_h = d_frame->offs_h;
+ if (!variant->pix_hoff)
+ d_frame->dma_offset.y_h *= (d_frame->fmt->depth >> 3);
+
+ d_frame->dma_offset.y_v = d_frame->offs_v;
+
+ d_frame->dma_offset.cb_h = d_frame->offs_h;
+ d_frame->dma_offset.cb_v = d_frame->offs_v;
+
+ d_frame->dma_offset.cr_h = d_frame->offs_h;
+ d_frame->dma_offset.cr_v = d_frame->offs_v;
+
+ if (!variant->pix_hoff && d_frame->fmt->planes_cnt == 3) {
+ d_frame->dma_offset.cb_h >>= 1;
+ d_frame->dma_offset.cb_v >>= 1;
+ d_frame->dma_offset.cr_h >>= 1;
+ d_frame->dma_offset.cr_v >>= 1;
+ }
+
+ dbg("out offset: color= %d, y_h= %d, y_v= %d",
+ d_frame->fmt->color,
+ d_frame->dma_offset.y_h, d_frame->dma_offset.y_v);
+
+ /* Prepare the input offset ratios for scaler. */
+ s_frame->dma_offset.y_h = s_frame->offs_h;
+ if (!variant->pix_hoff)
+ s_frame->dma_offset.y_h *= (s_frame->fmt->depth >> 3);
+ s_frame->dma_offset.y_v = s_frame->offs_v;
+
+ s_frame->dma_offset.cb_h = s_frame->offs_h;
+ s_frame->dma_offset.cb_v = s_frame->offs_v;
+
+ s_frame->dma_offset.cr_h = s_frame->offs_h;
+ s_frame->dma_offset.cr_v = s_frame->offs_v;
+
+ if (!variant->pix_hoff && s_frame->fmt->planes_cnt == 3) {
+ s_frame->dma_offset.cb_h >>= 1;
+ s_frame->dma_offset.cb_v >>= 1;
+ s_frame->dma_offset.cr_h >>= 1;
+ s_frame->dma_offset.cr_v >>= 1;
+ }
+
+ dbg("in offset: color= %d, y_h= %d, y_v= %d",
+ s_frame->fmt->color, s_frame->dma_offset.y_h,
+ s_frame->dma_offset.y_v);
+
+ fimc_set_yuv_order(ctx);
+
+ /* Check against the scaler ratio. */
+ if (s_frame->height > (SCALER_MAX_VRATIO * d_frame->height) ||
+ s_frame->width > (SCALER_MAX_HRATIO * d_frame->width)) {
+ err("out of scaler range");
+ return -EINVAL;
+ }
+ }
+
+ /* Input DMA mode is not allowed when the scaler is disabled. */
+ ctx->scaler.enabled = 1;
+
+ if (flags & FIMC_SRC_ADDR) {
+ buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
+ ret = fimc_prepare_addr(ctx, buf,
+ V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ if (ret)
+ return ret;
+ }
+
+ if (flags & FIMC_DST_ADDR) {
+ buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+ ret = fimc_prepare_addr(ctx, buf,
+ V4L2_BUF_TYPE_VIDEO_CAPTURE);
+ }
+
+ return ret;
+}
+
+/* The color format (planes_cnt, buff_cnt) must be already configured. */
+int fimc_prepare_addr(struct fimc_ctx *ctx,
+ struct fimc_vid_buffer *buf, enum v4l2_buf_type type)
+{
+ struct fimc_frame *frame;
+ struct fimc_addr *paddr;
+ u32 pix_size;
+ int ret = 0;
+
+ ctx_m2m_get_frame(frame, ctx, type);
+ paddr = &frame->paddr;
+
+ if (!buf)
+ return -EINVAL;
+
+ pix_size = frame->width * frame->height;
+
+ dbg("buff_cnt= %d, planes_cnt= %d, frame->size= %d, pix_size= %d",
+ frame->fmt->buff_cnt, frame->fmt->planes_cnt,
+ frame->size, pix_size);
+
+ if (frame->fmt->buff_cnt == 1) {
+ paddr->y = videobuf_to_dma_contig(&buf->vb);
+ switch (frame->fmt->planes_cnt) {
+ case 1:
+ paddr->cb = 0;
+ paddr->cr = 0;
+ break;
+ case 2:
+ /* decompose Y into Y/Cb */
+ paddr->cb = (u32)(paddr->y + pix_size);
+ paddr->cr = 0;
+ break;
+ case 3:
+ paddr->cb = (u32)(paddr->y + pix_size);
+ /* decompose Y into Y/Cb/Cr */
+ if (S5P_FIMC_YCBCR420 == frame->fmt->color)
+ paddr->cr = (u32)(paddr->cb
+ + (pix_size >> 2));
+ else /* 422 */
+ paddr->cr = (u32)(paddr->cb
+ + (pix_size >> 1));
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ dbg("PHYS_ADDR: type= %d, y= 0x%X cb= 0x%X cr= 0x%X ret= %d",
+ type, paddr->y, paddr->cb, paddr->cr, ret);
+
+ return ret;
+}
+
+static void fimc_buf_release(struct videobuf_queue *vq,
+ struct videobuf_buffer *vb)
+{
+ videobuf_dma_contig_free(vq, vb);
+ vb->state = VIDEOBUF_NEEDS_INIT;
+}
+
+static int fimc_buf_setup(struct videobuf_queue *vq, unsigned int *count,
+ unsigned int *size)
+{
+ struct fimc_ctx *ctx = vq->priv_data;
+ struct fimc_frame *frame;
+
+ ctx_m2m_get_frame(frame, ctx, vq->type);
+
+ *size = (frame->width * frame->height * frame->fmt->depth) >> 3;
+ if (0 == *count)
+ *count = 1;
+ return 0;
+}
+
+static int fimc_buf_prepare(struct videobuf_queue *vq,
+ struct videobuf_buffer *vb, enum v4l2_field field)
+{
+ struct fimc_ctx *ctx = vq->priv_data;
+ struct v4l2_device *v4l2_dev = &ctx->fimc_dev->m2m.v4l2_dev;
+ struct fimc_frame *frame;
+ int ret;
+
+ ctx_m2m_get_frame(frame, ctx, vq->type);
+
+ if (vb->baddr) {
+ if (vb->bsize < frame->size) {
+ v4l2_err(v4l2_dev,
+ "User-provided buffer too small (%d < %d)\n",
+ vb->bsize, frame->size);
+ WARN_ON(1);
+ return -EINVAL;
+ }
+ } else if (vb->state != VIDEOBUF_NEEDS_INIT
+ && vb->bsize < frame->size) {
+ return -EINVAL;
+ }
+
+ vb->width = frame->width;
+ vb->height = frame->height;
+ vb->bytesperline = (frame->width * frame->fmt->depth) >> 3;
+ vb->size = frame->size;
+ vb->field = field;
+
+ if (VIDEOBUF_NEEDS_INIT == vb->state) {
+ ret = videobuf_iolock(vq, vb, NULL);
+ if (ret) {
+ v4l2_err(v4l2_dev, "Iolock failed\n");
+ fimc_buf_release(vq, vb);
+ return ret;
+ }
+ }
+ vb->state = VIDEOBUF_PREPARED;
+
+ return 0;
+}
+
+static void fimc_buf_queue(struct videobuf_queue *vq,
+ struct videobuf_buffer *vb)
+{
+ struct fimc_ctx *ctx = vq->priv_data;
+ v4l2_m2m_buf_queue(ctx->m2m_ctx, vq, vb);
+}
+
+struct videobuf_queue_ops fimc_qops = {
+ .buf_setup = fimc_buf_setup,
+ .buf_prepare = fimc_buf_prepare,
+ .buf_queue = fimc_buf_queue,
+ .buf_release = fimc_buf_release,
+};
+
+static int fimc_m2m_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+
+ strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
+ strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
+ cap->bus_info[0] = 0;
+ cap->version = KERNEL_VERSION(1, 0, 0);
+ cap->capabilities = V4L2_CAP_STREAMING |
+ V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT;
+
+ return 0;
+}
+
+int fimc_m2m_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f)
+{
+ struct fimc_fmt *fmt;
+
+ if (f->index >= ARRAY_SIZE(fimc_formats))
+ return -EINVAL;
+
+ fmt = &fimc_formats[f->index];
+ strncpy(f->description, fmt->name, sizeof(f->description) - 1);
+ f->pixelformat = fmt->fourcc;
+ return 0;
+}
+
+static int fimc_m2m_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_frame *frame;
+
+ ctx_m2m_get_frame(frame, ctx, f->type);
+
+ f->fmt.pix.width = frame->width;
+ f->fmt.pix.height = frame->height;
+ f->fmt.pix.field = V4L2_FIELD_NONE;
+ f->fmt.pix.pixelformat = frame->fmt->fourcc;
+
+ return 0;
+}
+
+struct fimc_fmt *find_format(struct v4l2_format *f)
+{
+ struct fimc_fmt *fmt;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) {
+ fmt = &fimc_formats[i];
+ if (fmt->fourcc == f->fmt.pix.pixelformat)
+ break;
+ }
+ if (i == ARRAY_SIZE(fimc_formats))
+ return NULL;
+
+ return fmt;
+}
+
+static int fimc_m2m_try_fmt(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct fimc_fmt *fmt;
+ u32 max_width, max_height, mod_x, mod_y;
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+ struct samsung_fimc_variant *variant = fimc->variant;
+
+ fmt = find_format(f);
+ if (!fmt) {
+ v4l2_err(&fimc->m2m.v4l2_dev,
+ "Fourcc format (0x%X) invalid.\n", pix->pixelformat);
+ return -EINVAL;
+ }
+
+ if (pix->field == V4L2_FIELD_ANY)
+ pix->field = V4L2_FIELD_NONE;
+ else if (V4L2_FIELD_NONE != pix->field)
+ return -EINVAL;
+
+ if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ max_width = variant->scaler_dis_w;
+ max_height = variant->scaler_dis_w;
+ mod_x = variant->min_inp_pixsize;
+ mod_y = variant->min_inp_pixsize;
+ } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ max_width = variant->out_rot_dis_w;
+ max_height = variant->out_rot_dis_w;
+ mod_x = variant->min_out_pixsize;
+ mod_y = variant->min_out_pixsize;
+ } else {
+ err("Wrong stream type (%d)", f->type);
+ return -EINVAL;
+ }
+
+ dbg("max_w= %d, max_h= %d", max_width, max_height);
+
+ if (pix->height > max_height)
+ pix->height = max_height;
+ if (pix->width > max_width)
+ pix->width = max_width;
+
+ if (tiled_fmt(fmt)) {
+ mod_x = 64; /* 64x32 tile */
+ mod_y = 32;
+ }
+
+ dbg("mod_x= 0x%X, mod_y= 0x%X", mod_x, mod_y);
+
+ pix->width = (pix->width == 0) ? mod_x : ALIGN(pix->width, mod_x);
+ pix->height = (pix->height == 0) ? mod_y : ALIGN(pix->height, mod_y);
+
+ if (pix->bytesperline == 0 ||
+ pix->bytesperline * 8 / fmt->depth > pix->width)
+ pix->bytesperline = (pix->width * fmt->depth) >> 3;
+
+ if (pix->sizeimage == 0)
+ pix->sizeimage = pix->height * pix->bytesperline;
+
+ dbg("pix->bytesperline= %d, fmt->depth= %d",
+ pix->bytesperline, fmt->depth);
+
+ return 0;
+}
+
+
+static int fimc_m2m_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+ struct fimc_ctx *ctx = priv;
+ struct v4l2_device *v4l2_dev = &ctx->fimc_dev->m2m.v4l2_dev;
+ struct videobuf_queue *src_vq, *dst_vq;
+ struct fimc_frame *frame;
+ struct v4l2_pix_format *pix;
+ unsigned long flags;
+ int ret = 0;
+
+ BUG_ON(!ctx);
+
+ ret = fimc_m2m_try_fmt(file, priv, f);
+ if (ret)
+ return ret;
+
+ mutex_lock(&ctx->fimc_dev->lock);
+
+ src_vq = v4l2_m2m_get_src_vq(ctx->m2m_ctx);
+ dst_vq = v4l2_m2m_get_dst_vq(ctx->m2m_ctx);
+
+ mutex_lock(&src_vq->vb_lock);
+ mutex_lock(&dst_vq->vb_lock);
+
+ if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ if (videobuf_queue_is_busy(src_vq)) {
+ v4l2_err(v4l2_dev, "%s queue busy\n", __func__);
+ ret = -EBUSY;
+ goto s_fmt_out;
+ }
+ frame = &ctx->s_frame;
+ spin_lock_irqsave(&ctx->slock, flags);
+ ctx->state |= FIMC_SRC_FMT;
+ spin_unlock_irqrestore(&ctx->slock, flags);
+
+ } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ if (videobuf_queue_is_busy(dst_vq)) {
+ v4l2_err(v4l2_dev, "%s queue busy\n", __func__);
+ ret = -EBUSY;
+ goto s_fmt_out;
+ }
+ frame = &ctx->d_frame;
+ spin_lock_irqsave(&ctx->slock, flags);
+ ctx->state |= FIMC_DST_FMT;
+ spin_unlock_irqrestore(&ctx->slock, flags);
+ } else {
+ v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev,
+ "Wrong buffer/video queue type (%d)\n", f->type);
+ return -EINVAL;
+ }
+
+ pix = &f->fmt.pix;
+ frame->fmt = find_format(f);
+ if (!frame->fmt) {
+ ret = -EINVAL;
+ goto s_fmt_out;
+ }
+
+ frame->f_width = pix->bytesperline * 8 / frame->fmt->depth;
+ frame->f_height = pix->sizeimage/pix->bytesperline;
+ frame->width = pix->width;
+ frame->height = pix->height;
+ frame->o_width = pix->width;
+ frame->o_height = pix->height;
+ frame->offs_h = 0;
+ frame->offs_v = 0;
+ frame->size = (pix->width * pix->height * frame->fmt->depth) >> 3;
+ src_vq->field = dst_vq->field = pix->field;
+ spin_lock_irqsave(&ctx->slock, flags);
+ ctx->state |= FIMC_PARAMS;
+ spin_unlock_irqrestore(&ctx->slock, flags);
+
+ dbg("f_width= %d, f_height= %d", frame->f_width, frame->f_height);
+
+s_fmt_out:
+ mutex_unlock(&dst_vq->vb_lock);
+ mutex_unlock(&src_vq->vb_lock);
+ mutex_unlock(&ctx->fimc_dev->lock);
+ return ret;
+}
+
+static int fimc_m2m_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *reqbufs)
+{
+ struct fimc_ctx *ctx = priv;
+ return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
+}
+
+static int fimc_m2m_querybuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = priv;
+ return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
+}
+
+static int fimc_m2m_qbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = priv;
+
+ return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int fimc_m2m_dqbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = priv;
+ return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int fimc_m2m_streamon(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct fimc_ctx *ctx = priv;
+ return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
+}
+
+static int fimc_m2m_streamoff(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct fimc_ctx *ctx = priv;
+ return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
+}
+
+int fimc_m2m_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qc)
+{
+ struct v4l2_queryctrl *c;
+ c = get_ctrl(qc->id);
+ if (!c)
+ return -EINVAL;
+ *qc = *c;
+ return 0;
+}
+
+int fimc_m2m_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct fimc_ctx *ctx = priv;
+
+ switch (ctrl->id) {
+ case V4L2_CID_HFLIP:
+ ctrl->value = (FLIP_X_AXIS & ctx->flip) ? 1 : 0;
+ break;
+ case V4L2_CID_VFLIP:
+ ctrl->value = (FLIP_Y_AXIS & ctx->flip) ? 1 : 0;
+ break;
+ case V4L2_CID_ROTATE:
+ ctrl->value = ctx->rotation;
+ break;
+ default:
+ v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev, "Invalid control\n");
+ return -EINVAL;
+ }
+ dbg("ctrl->value= %d", ctrl->value);
+ return 0;
+}
+
+static int check_ctrl_val(struct fimc_ctx *ctx,
+ struct v4l2_control *ctrl)
+{
+ struct v4l2_queryctrl *c;
+ c = get_ctrl(ctrl->id);
+ if (!c)
+ return -EINVAL;
+
+ if (ctrl->value < c->minimum || ctrl->value > c->maximum
+ || (c->step != 0 && ctrl->value % c->step != 0)) {
+ v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev,
+ "Invalid control value\n");
+ return -ERANGE;
+ }
+
+ return 0;
+}
+
+int fimc_m2m_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct fimc_ctx *ctx = priv;
+ struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
+ unsigned long flags;
+ int ret = 0;
+
+ ret = check_ctrl_val(ctx, ctrl);
+ if (ret)
+ return ret;
+
+ switch (ctrl->id) {
+ case V4L2_CID_HFLIP:
+ if (ctx->rotation != 0)
+ return 0;
+ if (ctrl->value)
+ ctx->flip |= FLIP_X_AXIS;
+ else
+ ctx->flip &= ~FLIP_X_AXIS;
+ break;
+
+ case V4L2_CID_VFLIP:
+ if (ctx->rotation != 0)
+ return 0;
+ if (ctrl->value)
+ ctx->flip |= FLIP_Y_AXIS;
+ else
+ ctx->flip &= ~FLIP_Y_AXIS;
+ break;
+
+ case V4L2_CID_ROTATE:
+ if (ctrl->value == 90 || ctrl->value == 270) {
+ if (ctx->out_path == FIMC_LCDFIFO &&
+ !variant->has_inp_rot) {
+ return -EINVAL;
+ } else if (ctx->in_path == FIMC_DMA &&
+ !variant->has_out_rot) {
+ return -EINVAL;
+ }
+ }
+ ctx->rotation = ctrl->value;
+ if (ctrl->value == 180)
+ ctx->flip = FLIP_XY_AXIS;
+ break;
+
+ default:
+ v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev, "Invalid control\n");
+ return -EINVAL;
+ }
+ spin_lock_irqsave(&ctx->slock, flags);
+ ctx->state |= FIMC_PARAMS;
+ spin_unlock_irqrestore(&ctx->slock, flags);
+ return 0;
+}
+
+
+static int fimc_m2m_cropcap(struct file *file, void *fh,
+ struct v4l2_cropcap *cr)
+{
+ struct fimc_frame *frame;
+ struct fimc_ctx *ctx = fh;
+
+ ctx_m2m_get_frame(frame, ctx, cr->type);
+
+ cr->bounds.left = 0;
+ cr->bounds.top = 0;
+ cr->bounds.width = frame->f_width;
+ cr->bounds.height = frame->f_height;
+ cr->defrect.left = frame->offs_h;
+ cr->defrect.top = frame->offs_v;
+ cr->defrect.width = frame->o_width;
+ cr->defrect.height = frame->o_height;
+ return 0;
+}
+
+static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+{
+ struct fimc_frame *frame;
+ struct fimc_ctx *ctx = file->private_data;
+
+ ctx_m2m_get_frame(frame, ctx, cr->type);
+
+ cr->c.left = frame->offs_h;
+ cr->c.top = frame->offs_v;
+ cr->c.width = frame->width;
+ cr->c.height = frame->height;
+
+ return 0;
+}
+
+static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ unsigned long flags;
+ struct fimc_frame *f;
+ u32 min_size;
+ int ret = 0;
+
+ if (cr->c.top < 0 || cr->c.left < 0) {
+ v4l2_err(&fimc->m2m.v4l2_dev,
+ "doesn't support negative values for top & left\n");
+ return -EINVAL;
+ }
+
+ if (cr->c.width <= 0 || cr->c.height <= 0) {
+ v4l2_err(&fimc->m2m.v4l2_dev,
+ "crop width and height must be greater than 0\n");
+ return -EINVAL;
+ }
+
+ ctx_m2m_get_frame(f, ctx, cr->type);
+
+ /* Adjust to required pixel boundary. */
+ min_size = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ?
+ fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
+
+ cr->c.width = round_down(cr->c.width, min_size);
+ cr->c.height = round_down(cr->c.height, min_size);
+ cr->c.left = round_down(cr->c.left + 1, min_size);
+ cr->c.top = round_down(cr->c.top + 1, min_size);
+
+ if ((cr->c.left + cr->c.width > f->o_width)
+ || (cr->c.top + cr->c.height > f->o_height)) {
+ v4l2_err(&fimc->m2m.v4l2_dev, "Error in S_CROP params\n");
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&ctx->slock, flags);
+ if ((ctx->state & FIMC_SRC_FMT) && (ctx->state & FIMC_DST_FMT)) {
+ /* Check for the pixel scaling ratio when cropping input img. */
+ if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
+ ret = fimc_check_scaler_ratio(&cr->c, &ctx->d_frame);
+ else if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ ret = fimc_check_scaler_ratio(&cr->c, &ctx->s_frame);
+
+ if (ret) {
+ spin_unlock_irqrestore(&ctx->slock, flags);
+ v4l2_err(&fimc->m2m.v4l2_dev, "Out of scaler range");
+ return -EINVAL;
+ }
+ }
+ ctx->state |= FIMC_PARAMS;
+ spin_unlock_irqrestore(&ctx->slock, flags);
+
+ f->offs_h = cr->c.left;
+ f->offs_v = cr->c.top;
+ f->width = cr->c.width;
+ f->height = cr->c.height;
+ return 0;
+}
+
+static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = {
+ .vidioc_querycap = fimc_m2m_querycap,
+
+ .vidioc_enum_fmt_vid_cap = fimc_m2m_enum_fmt,
+ .vidioc_enum_fmt_vid_out = fimc_m2m_enum_fmt,
+
+ .vidioc_g_fmt_vid_cap = fimc_m2m_g_fmt,
+ .vidioc_g_fmt_vid_out = fimc_m2m_g_fmt,
+
+ .vidioc_try_fmt_vid_cap = fimc_m2m_try_fmt,
+ .vidioc_try_fmt_vid_out = fimc_m2m_try_fmt,
+
+ .vidioc_s_fmt_vid_cap = fimc_m2m_s_fmt,
+ .vidioc_s_fmt_vid_out = fimc_m2m_s_fmt,
+
+ .vidioc_reqbufs = fimc_m2m_reqbufs,
+ .vidioc_querybuf = fimc_m2m_querybuf,
+
+ .vidioc_qbuf = fimc_m2m_qbuf,
+ .vidioc_dqbuf = fimc_m2m_dqbuf,
+
+ .vidioc_streamon = fimc_m2m_streamon,
+ .vidioc_streamoff = fimc_m2m_streamoff,
+
+ .vidioc_queryctrl = fimc_m2m_queryctrl,
+ .vidioc_g_ctrl = fimc_m2m_g_ctrl,
+ .vidioc_s_ctrl = fimc_m2m_s_ctrl,
+
+ .vidioc_g_crop = fimc_m2m_g_crop,
+ .vidioc_s_crop = fimc_m2m_s_crop,
+ .vidioc_cropcap = fimc_m2m_cropcap
+
+};
+
+static void queue_init(void *priv, struct videobuf_queue *vq,
+ enum v4l2_buf_type type)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+
+ videobuf_queue_dma_contig_init(vq, &fimc_qops,
+ fimc->m2m.v4l2_dev.dev,
+ &fimc->irqlock, type, V4L2_FIELD_NONE,
+ sizeof(struct fimc_vid_buffer), priv);
+}
+
+static int fimc_m2m_open(struct file *file)
+{
+ struct fimc_dev *fimc = video_drvdata(file);
+ struct fimc_ctx *ctx = NULL;
+ int err = 0;
+
+ mutex_lock(&fimc->lock);
+ fimc->m2m.refcnt++;
+ set_bit(ST_OUTDMA_RUN, &fimc->state);
+ mutex_unlock(&fimc->lock);
+
+
+ ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ file->private_data = ctx;
+ ctx->fimc_dev = fimc;
+ /* default format */
+ ctx->s_frame.fmt = &fimc_formats[0];
+ ctx->d_frame.fmt = &fimc_formats[0];
+ /* per user process device context initialization */
+ ctx->state = 0;
+ ctx->flags = 0;
+ ctx->effect.type = S5P_FIMC_EFFECT_ORIGINAL;
+ ctx->in_path = FIMC_DMA;
+ ctx->out_path = FIMC_DMA;
+ spin_lock_init(&ctx->slock);
+
+ ctx->m2m_ctx = v4l2_m2m_ctx_init(ctx, fimc->m2m.m2m_dev, queue_init);
+ if (IS_ERR(ctx->m2m_ctx)) {
+ err = PTR_ERR(ctx->m2m_ctx);
+ kfree(ctx);
+ }
+ return err;
+}
+
+static int fimc_m2m_release(struct file *file)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
+ kfree(ctx);
+ mutex_lock(&fimc->lock);
+ if (--fimc->m2m.refcnt <= 0)
+ clear_bit(ST_OUTDMA_RUN, &fimc->state);
+ mutex_unlock(&fimc->lock);
+ return 0;
+}
+
+static unsigned int fimc_m2m_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
+}
+
+
+static int fimc_m2m_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
+}
+
+static const struct v4l2_file_operations fimc_m2m_fops = {
+ .owner = THIS_MODULE,
+ .open = fimc_m2m_open,
+ .release = fimc_m2m_release,
+ .poll = fimc_m2m_poll,
+ .ioctl = video_ioctl2,
+ .mmap = fimc_m2m_mmap,
+};
+
+static struct v4l2_m2m_ops m2m_ops = {
+ .device_run = fimc_dma_run,
+ .job_abort = fimc_job_abort,
+};
+
+
+static int fimc_register_m2m_device(struct fimc_dev *fimc)
+{
+ struct video_device *vfd;
+ struct platform_device *pdev;
+ struct v4l2_device *v4l2_dev;
+ int ret = 0;
+
+ if (!fimc)
+ return -ENODEV;
+
+ pdev = fimc->pdev;
+ v4l2_dev = &fimc->m2m.v4l2_dev;
+
+ /* set name if it is empty */
+ if (!v4l2_dev->name[0])
+ snprintf(v4l2_dev->name, sizeof(v4l2_dev->name),
+ "%s.%d.v4l2_m2m", MODULE_NAME, fimc->id);
+
+ ret = v4l2_device_register(&pdev->dev, v4l2_dev);
+ if (ret)
+ return ret;;
+
+ vfd = video_device_alloc();
+ if (!vfd) {
+ v4l2_err(v4l2_dev, "Failed to allocate video device\n");
+ goto err_m2m_r1;
+ }
+
+ vfd->fops = &fimc_m2m_fops;
+ vfd->ioctl_ops = &fimc_m2m_ioctl_ops;
+ vfd->minor = -1;
+ vfd->release = video_device_release;
+
+ snprintf(vfd->name, sizeof(vfd->name), "%s.%d:v4l2_m2m",
+ MODULE_NAME, fimc->id);
+
+ ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
+ if (ret) {
+ v4l2_err(v4l2_dev,
+ "%s(): failed to register video device\n", __func__);
+ goto err_m2m_r2;
+ }
+ video_set_drvdata(vfd, fimc);
+ fimc->m2m.vfd = vfd;
+ v4l2_info(v4l2_dev,
+ "FIMC m2m driver registered as /dev/video%d\n", vfd->num);
+
+ platform_set_drvdata(pdev, fimc);
+
+ fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops);
+
+ if (IS_ERR(fimc->m2m.m2m_dev)) {
+ v4l2_err(v4l2_dev, "failed to initialize v4l2-m2m device\n");
+ ret = PTR_ERR(fimc->m2m.m2m_dev);
+ goto err_m2m_r3;
+ }
+ return 0;
+
+err_m2m_r1:
+ v4l2_device_unregister(&fimc->m2m.v4l2_dev);
+err_m2m_r2:
+ video_device_release(fimc->m2m.vfd);
+err_m2m_r3:
+ video_unregister_device(fimc->m2m.vfd);
+
+ return ret;
+}
+
+static void fimc_unregister_m2m_device(struct fimc_dev *fimc)
+{
+ if (fimc) {
+ v4l2_m2m_release(fimc->m2m.m2m_dev);
+ video_unregister_device(fimc->m2m.vfd);
+ video_device_release(fimc->m2m.vfd);
+ v4l2_device_unregister(&fimc->m2m.v4l2_dev);
+ }
+}
+
+static void fimc_clk_release(struct fimc_dev *fimc)
+{
+ int i;
+ for (i = 0; i < NUM_FIMC_CLOCKS; i++) {
+ if (fimc->clock[i]) {
+ clk_disable(fimc->clock[i]);
+ clk_put(fimc->clock[i]);
+ }
+ }
+}
+
+static int fimc_clk_get(struct fimc_dev *fimc)
+{
+ int i;
+ for (i = 0; i < NUM_FIMC_CLOCKS; i++) {
+ fimc->clock[i] = clk_get(&fimc->pdev->dev, fimc_clock_name[i]);
+ if (IS_ERR(fimc->clock[i])) {
+ dev_err(&fimc->pdev->dev,
+ "failed to get fimc clock: %s\n",
+ fimc_clock_name[i]);
+ return -ENXIO;
+ }
+ clk_enable(fimc->clock[i]);
+ }
+ return 0;
+}
+
+static int fimc_probe(struct platform_device *pdev)
+{
+ struct fimc_dev *fimc;
+ struct resource *res;
+ struct samsung_fimc_driverdata *drv_data;
+ int ret = 0;
+
+ dev_dbg(&pdev->dev, "%s():\n", __func__);
+
+ drv_data = (struct samsung_fimc_driverdata *)
+ platform_get_device_id(pdev)->driver_data;
+
+ if (pdev->id >= drv_data->devs_cnt) {
+ dev_err(&pdev->dev, "Invalid platform device id: %d\n",
+ pdev->id);
+ return -EINVAL;
+ }
+
+ fimc = kzalloc(sizeof(struct fimc_dev), GFP_KERNEL);
+ if (!fimc)
+ return -ENOMEM;
+
+ fimc->id = pdev->id;
+ fimc->variant = drv_data->variant[fimc->id];
+ fimc->pdev = pdev;
+ fimc->state = ST_IDLE;
+
+ spin_lock_init(&fimc->irqlock);
+ spin_lock_init(&fimc->slock);
+
+ mutex_init(&fimc->lock);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to find the registers\n");
+ ret = -ENOENT;
+ goto err_info;
+ }
+
+ fimc->regs_res = request_mem_region(res->start, resource_size(res),
+ dev_name(&pdev->dev));
+ if (!fimc->regs_res) {
+ dev_err(&pdev->dev, "failed to obtain register region\n");
+ ret = -ENOENT;
+ goto err_info;
+ }
+
+ fimc->regs = ioremap(res->start, resource_size(res));
+ if (!fimc->regs) {
+ dev_err(&pdev->dev, "failed to map registers\n");
+ ret = -ENXIO;
+ goto err_req_region;
+ }
+
+ ret = fimc_clk_get(fimc);
+ if (ret)
+ goto err_regs_unmap;
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to get IRQ resource\n");
+ ret = -ENXIO;
+ goto err_clk;
+ }
+ fimc->irq = res->start;
+
+ fimc_hw_reset(fimc);
+
+ ret = request_irq(fimc->irq, fimc_isr, 0, pdev->name, fimc);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to install irq (%d)\n", ret);
+ goto err_clk;
+ }
+
+ fimc->work_queue = create_workqueue(dev_name(&fimc->pdev->dev));
+ if (!fimc->work_queue)
+ goto err_irq;
+
+ ret = fimc_register_m2m_device(fimc);
+ if (ret)
+ goto err_wq;
+
+ fimc_hw_en_lastirq(fimc, true);
+
+ dev_dbg(&pdev->dev, "%s(): fimc-%d registered successfully\n",
+ __func__, fimc->id);
+
+ return 0;
+
+err_wq:
+ destroy_workqueue(fimc->work_queue);
+err_irq:
+ free_irq(fimc->irq, fimc);
+err_clk:
+ fimc_clk_release(fimc);
+err_regs_unmap:
+ iounmap(fimc->regs);
+err_req_region:
+ release_resource(fimc->regs_res);
+ kfree(fimc->regs_res);
+err_info:
+ dev_err(&pdev->dev, "failed to install\n");
+ return ret;
+}
+
+static int __devexit fimc_remove(struct platform_device *pdev)
+{
+ struct fimc_dev *fimc =
+ (struct fimc_dev *)platform_get_drvdata(pdev);
+
+ v4l2_info(&fimc->m2m.v4l2_dev, "Removing %s\n", pdev->name);
+
+ free_irq(fimc->irq, fimc);
+
+ fimc_hw_reset(fimc);
+
+ fimc_unregister_m2m_device(fimc);
+ fimc_clk_release(fimc);
+ iounmap(fimc->regs);
+ release_resource(fimc->regs_res);
+ kfree(fimc->regs_res);
+ kfree(fimc);
+ return 0;
+}
+
+static struct samsung_fimc_variant fimc01_variant_s5p = {
+ .has_inp_rot = 1,
+ .has_out_rot = 1,
+ .min_inp_pixsize = 16,
+ .min_out_pixsize = 16,
+
+ .scaler_en_w = 3264,
+ .scaler_dis_w = 8192,
+ .in_rot_en_h = 1920,
+ .in_rot_dis_w = 8192,
+ .out_rot_en_w = 1920,
+ .out_rot_dis_w = 4224,
+};
+
+static struct samsung_fimc_variant fimc2_variant_s5p = {
+ .min_inp_pixsize = 16,
+ .min_out_pixsize = 16,
+
+ .scaler_en_w = 4224,
+ .scaler_dis_w = 8192,
+ .in_rot_en_h = 1920,
+ .in_rot_dis_w = 8192,
+ .out_rot_en_w = 1920,
+ .out_rot_dis_w = 4224,
+};
+
+static struct samsung_fimc_variant fimc01_variant_s5pv210 = {
+ .has_inp_rot = 1,
+ .has_out_rot = 1,
+ .min_inp_pixsize = 16,
+ .min_out_pixsize = 32,
+
+ .scaler_en_w = 4224,
+ .scaler_dis_w = 8192,
+ .in_rot_en_h = 1920,
+ .in_rot_dis_w = 8192,
+ .out_rot_en_w = 1920,
+ .out_rot_dis_w = 4224,
+};
+
+static struct samsung_fimc_variant fimc2_variant_s5pv210 = {
+ .min_inp_pixsize = 16,
+ .min_out_pixsize = 32,
+
+ .scaler_en_w = 1920,
+ .scaler_dis_w = 8192,
+ .in_rot_en_h = 1280,
+ .in_rot_dis_w = 8192,
+ .out_rot_en_w = 1280,
+ .out_rot_dis_w = 1920,
+};
+
+static struct samsung_fimc_driverdata fimc_drvdata_s5p = {
+ .variant = {
+ [0] = &fimc01_variant_s5p,
+ [1] = &fimc01_variant_s5p,
+ [2] = &fimc2_variant_s5p,
+ },
+ .devs_cnt = 3
+};
+
+static struct samsung_fimc_driverdata fimc_drvdata_s5pv210 = {
+ .variant = {
+ [0] = &fimc01_variant_s5pv210,
+ [1] = &fimc01_variant_s5pv210,
+ [2] = &fimc2_variant_s5pv210,
+ },
+ .devs_cnt = 3
+};
+
+static struct platform_device_id fimc_driver_ids[] = {
+ {
+ .name = "s5p-fimc",
+ .driver_data = (unsigned long)&fimc_drvdata_s5p,
+ }, {
+ .name = "s5pv210-fimc",
+ .driver_data = (unsigned long)&fimc_drvdata_s5pv210,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(platform, s3c_fimc_driver_ids);
+
+static struct platform_driver fimc_driver = {
+ .probe = fimc_probe,
+ .remove = __devexit_p(fimc_remove),
+ .id_table = fimc_driver_ids,
+ .driver = {
+ .name = MODULE_NAME,
+ .owner = THIS_MODULE,
+ }
+};
+
+static char banner[] __initdata = KERN_INFO
+ "S5PC Camera Interface V4L2 Driver, (c) 2010 Samsung Electronics\n";
+
+static int __init fimc_init(void)
+{
+ u32 ret;
+ printk(banner);
+
+ ret = platform_driver_register(&fimc_driver);
+ if (ret) {
+ printk(KERN_ERR "FIMC platform driver register failed\n");
+ return -1;
+ }
+ return 0;
+}
+
+static void __exit fimc_exit(void)
+{
+ platform_driver_unregister(&fimc_driver);
+}
+
+module_init(fimc_init);
+module_exit(fimc_exit);
+
+MODULE_AUTHOR("Sylwester Nawrocki, s.nawrocki@samsung.com");
+MODULE_DESCRIPTION("S3C/S5P FIMC (video postprocessor) driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/video/samsung/fimc/fimc-core.h b/drivers/media/video/samsung/fimc/fimc-core.h
new file mode 100644
index 0000000..f93d0edd
--- /dev/null
+++ b/drivers/media/video/samsung/fimc/fimc-core.h
@@ -0,0 +1,490 @@
+/*
+ * Copyright (c) 2010 Samsung Electronics
+ *
+ * Sylwester Nawrocki, <s.nawrocki@samsung.com>
+ *
+ * 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 FIMC_CORE_H_
+#define FIMC_CORE_H_
+
+#include <linux/types.h>
+#include <plat/fimc.h>
+#include <plat/regs-fimc.h>
+#include <media/videobuf-core.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-mem2mem.h>
+#include <linux/videodev2.h>
+
+#define err(fmt, args...) \
+ printk(KERN_ERR "%s:%d: " fmt "\n", __func__, __LINE__, ##args)
+
+#ifdef DEBUG
+#define dbg(fmt, args...) \
+ printk(KERN_DEBUG "%s:%d: " fmt "\n", __func__, __LINE__, ##args)
+#else
+#define dbg(fmt, args...)
+#endif
+
+#define ctx_m2m_get_frame(frame, ctx, type) do { \
+ if (V4L2_BUF_TYPE_VIDEO_OUTPUT == (type)) { \
+ frame = &(ctx)->s_frame; \
+ } else if (V4L2_BUF_TYPE_VIDEO_CAPTURE == (type)) { \
+ frame = &(ctx)->d_frame; \
+ } else { \
+ v4l2_err(&(ctx)->fimc_dev->m2m.v4l2_dev,\
+ "Wrong buffer/video queue type (%d)\n", type); \
+ return -EINVAL; \
+ } \
+} while (0)
+
+#define NUM_FIMC_CLOCKS 2
+#define MODULE_NAME "s5p-fimc"
+#define FIMC_MAX_DEVS 3
+#define FIMC_MAX_OUT_BUFS 4
+#define SCALER_MAX_HRATIO 64
+#define SCALER_MAX_VRATIO 64
+
+enum {
+ ST_IDLE,
+ ST_OUTDMA_RUN,
+ ST_M2M_PEND,
+};
+
+#define fimc_m2m_active(dev) test_bit(ST_OUTDMA_RUN, &(dev)->state)
+#define fimc_m2m_pending(dev) test_bit(ST_M2M_PEND, &(dev)->state)
+
+enum fimc_datapath {
+ FIMC_ITU_CAM_A,
+ FIMC_ITU_CAM_B,
+ FIMC_MIPI_CAM,
+ FIMC_DMA,
+ FIMC_LCDFIFO,
+ FIMC_WRITEBACK
+};
+
+enum fimc_color_fmt {
+ S5P_FIMC_RGB565,
+ S5P_FIMC_RGB666,
+ S5P_FIMC_RGB888,
+ S5P_FIMC_YCBCR420,
+ S5P_FIMC_YCBCR422,
+ S5P_FIMC_YCBYCR422,
+ S5P_FIMC_YCRYCB422,
+ S5P_FIMC_CBYCRY422,
+ S5P_FIMC_CRYCBY422,
+ S5P_FIMC_RGB30_LOCAL,
+ S5P_FIMC_YCBCR444_LOCAL,
+ S5P_FIMC_MAX_COLOR = S5P_FIMC_YCBCR444_LOCAL,
+ S5P_FIMC_COLOR_MASK = 0x0F,
+};
+
+/* Y/Cb/Cr components order at DMA output for 1 plane YCbCr 4:2:2 formats. */
+#define S5P_FIMC_OUT_CRYCBY S5P_CIOCTRL_ORDER422_CRYCBY
+#define S5P_FIMC_OUT_CBYCRY S5P_CIOCTRL_ORDER422_YCRYCB
+#define S5P_FIMC_OUT_YCRYCB S5P_CIOCTRL_ORDER422_CBYCRY
+#define S5P_FIMC_OUT_YCBYCR S5P_CIOCTRL_ORDER422_YCBYCR
+
+/* Input Y/Cb/Cr components order for 1 plane YCbCr 4:2:2 color formats. */
+#define S5P_FIMC_IN_CRYCBY S5P_MSCTRL_ORDER422_CRYCBY
+#define S5P_FIMC_IN_CBYCRY S5P_MSCTRL_ORDER422_YCRYCB
+#define S5P_FIMC_IN_YCRYCB S5P_MSCTRL_ORDER422_CBYCRY
+#define S5P_FIMC_IN_YCBYCR S5P_MSCTRL_ORDER422_YCBYCR
+
+/* Cb/Cr chrominance components order for 2 plane Y/CbCr 4:2:2 formats. */
+#define S5P_FIMC_LSB_CRCB S5P_CIOCTRL_ORDER422_2P_LSB_CRCB
+
+/* The embedded image effect selection */
+#define S5P_FIMC_EFFECT_ORIGINAL S5P_CIIMGEFF_FIN_BYPASS
+#define S5P_FIMC_EFFECT_ARBITRARY S5P_CIIMGEFF_FIN_ARBITRARY
+#define S5P_FIMC_EFFECT_NEGATIVE S5P_CIIMGEFF_FIN_NEGATIVE
+#define S5P_FIMC_EFFECT_ARTFREEZE S5P_CIIMGEFF_FIN_ARTFREEZE
+#define S5P_FIMC_EFFECT_EMBOSSING S5P_CIIMGEFF_FIN_EMBOSSING
+#define S5P_FIMC_EFFECT_SIKHOUETTE S5P_CIIMGEFF_FIN_SILHOUETTE
+
+/* The hardware context state. */
+#define FIMC_PARAMS (1 << 0)
+#define FIMC_SRC_ADDR (1 << 1)
+#define FIMC_DST_ADDR (1 << 2)
+#define FIMC_SRC_FMT (1 << 3)
+#define FIMC_DST_FMT (1 << 4)
+
+/* Image conversion flags */
+#define FIMC_IN_DMA_ACCESS_TILED (1 << 0)
+#define FIMC_IN_DMA_ACCESS_LINEAR (0 << 0)
+#define FIMC_OUT_DMA_ACCESS_TILED (1 << 1)
+#define FIMC_OUT_DMA_ACCESS_LINEAR (0 << 1)
+#define FIMC_SCAN_MODE_PROGRESSIVE (0 << 2)
+#define FIMC_SCAN_MODE_INTERLACED (1 << 2)
+/* YCbCr data dynamic range for RGB-YUV color conversion. Y/Cb/Cr: (0 ~ 255) */
+#define FIMC_COLOR_RANGE_WIDE (0 << 3)
+/* Y (16 ~ 235), Cb/Cr (16 ~ 240) */
+#define FIMC_COLOR_RANGE_NARROW (1 << 3)
+
+#define FLIP_NONE 0
+#define FLIP_X_AXIS 1
+#define FLIP_Y_AXIS 2
+#define FLIP_XY_AXIS (FLIP_X_AXIS | FLIP_Y_AXIS)
+
+/**
+ * struct fimc_fmt - the driver's internal color format data
+ * @name: format description
+ * @fourcc: the fourcc code for this format
+ * @color: the corresponding fimc_color_fmt
+ * @depth: number of bits per pixel
+ * @buff_cnt: number of physically non-contiguous data planes
+ * @planes_cnt: number of physically contiguous data planes
+ */
+struct fimc_fmt {
+ char *name;
+ u32 fourcc;
+ u32 color;
+ u32 depth;
+ u16 buff_cnt;
+ u16 planes_cnt;
+};
+
+/**
+ * struct fimc_dma_offset - pixel offset information for DMA
+ * @y_h: y value horizontal offset
+ * @y_v: y value vertical offset
+ * @cb_h: cb value horizontal offset
+ * @cb_v: cb value vertical offset
+ * @cr_h: cr value horizontal offset
+ * @cr_v: cr value vertical offset
+ */
+struct fimc_dma_offset {
+ int y_h;
+ int y_v;
+ int cb_h;
+ int cb_v;
+ int cr_h;
+ int cr_v;
+};
+
+/**
+ * struct fimc_effect - the configuration data for the "Arbitrary" image effect
+ * @type: effect type
+ * @pat_cb: cr value when type is "arbitrary"
+ * @pat_cr: cr value when type is "arbitrary"
+ */
+struct fimc_effect {
+ u32 type;
+ u8 pat_cb;
+ u8 pat_cr;
+};
+
+/**
+ * struct fimc_scaler - the configuration data for FIMC inetrnal scaler
+ *
+ * @enabled: the flag set when the scaler is used
+ * @hfactor: horizontal shift factor
+ * @vfactor: vertical shift factor
+ * @pre_hratio: horizontal ratio of the prescaler
+ * @pre_vratio: vertical ratio of the prescaler
+ * @pre_dst_width: the prescaler's destination width
+ * @pre_dst_height: the prescaler's destination height
+ * @scaleup_h: flag indicating scaling up horizontally
+ * @scaleup_v: flag indicating scaling up vertically
+ * @main_hratio: the main scaler's horizontal ratio
+ * @main_vratio: the main scaler's vertical ratio
+ * @real_width: source width - offset
+ * @real_height: source height - offset
+ * @copy_mode: flag set if one-to-one mode is used, i.e. no scaling
+ * and color format conversion
+ */
+struct fimc_scaler {
+ u32 enabled;
+ u32 hfactor;
+ u32 vfactor;
+ u32 pre_hratio;
+ u32 pre_vratio;
+ u32 pre_dst_width;
+ u32 pre_dst_height;
+ u32 scaleup_h;
+ u32 scaleup_v;
+ u32 main_hratio;
+ u32 main_vratio;
+ u32 real_width;
+ u32 real_height;
+ u32 copy_mode;
+};
+
+/**
+ * struct fimc_addr - the FIMC physical address set for DMA
+ *
+ * @y: luminance plane physical address
+ * @cb: Cb plane physical address
+ * @cr: Cr plane physical address
+ */
+struct fimc_addr {
+ u32 y;
+ u32 cb;
+ u32 cr;
+};
+
+/**
+ * struct fimc_vid_buffer - the driver's video buffer
+ * @vb: v4l videobuf buffer
+ */
+struct fimc_vid_buffer {
+ struct videobuf_buffer vb;
+};
+
+/**
+ * struct fimc_frame - input/output frame format properties
+ *
+ * @f_width: image full width (virtual screen size)
+ * @f_height: image full height (virtual screen size)
+ * @o_width: original image width as set by S_FMT
+ * @o_height: original image height as set by S_FMT
+ * @offs_h: image horizontal pixel offset
+ * @offs_v: image vertical pixel offset
+ * @width: image pixel width
+ * @height: image pixel weight
+ * @paddr: image frame buffer physical addresses
+ * @buf_cnt: number of buffers depending on a color format
+ * @size: image size in bytes
+ * @color: color format
+ * @dma_offset: DMA offset in bytes
+ */
+struct fimc_frame {
+ u32 f_width;
+ u32 f_height;
+ u32 o_width;
+ u32 o_height;
+ u32 offs_h;
+ u32 offs_v;
+ u32 width;
+ u32 height;
+ u32 size;
+ struct fimc_addr paddr;
+ struct fimc_dma_offset dma_offset;
+ struct fimc_fmt *fmt;
+};
+
+/**
+ * struct fimc_m2m_device - v4l2 memory-to-memory device data
+ * @vfd: the video device node for v4l2 m2m mode
+ * @v4l2_dev: v4l2 device for m2m mode
+ * @m2m_dev: v4l2 memory-to-memory device data
+ * @ctx: hardware context data
+ * @refcnt: the reference counter
+ */
+struct fimc_m2m_device {
+ struct video_device *vfd;
+ struct v4l2_device v4l2_dev;
+ struct v4l2_m2m_dev *m2m_dev;
+ struct fimc_ctx *ctx;
+ int refcnt;
+};
+
+/**
+ * struct samsung_fimc_variant - camera interface variant information
+ *
+ * @pix_hoff: indicate whether horizontal offset is in pixels or in bytes
+ * @has_inp_rot: set if has input rotator
+ * @has_out_rot: set if has output rotator
+ * @min_inp_pixsize: minimum input pixel size
+ * @min_out_pixsize: minimum output pixel size
+ * @scaler_en_w: maximum input pixel width when the scaler is enabled
+ * @scaler_dis_w: maximum input pixel width when the scaler is disabled
+ * @in_rot_en_h: maximum input width when the input rotator is used
+ * @in_rot_dis_w: maximum input width when the input rotator is used
+ * @out_rot_en_w: maximum output width for the output rotator enabled
+ * @out_rot_dis_w: maximum output width for the output rotator enabled
+ */
+struct samsung_fimc_variant {
+ unsigned int pix_hoff:1;
+ unsigned int has_inp_rot:1;
+ unsigned int has_out_rot:1;
+
+ u16 min_inp_pixsize;
+ u16 min_out_pixsize;
+ u16 scaler_en_w;
+ u16 scaler_dis_w;
+ u16 in_rot_en_h;
+ u16 in_rot_dis_w;
+ u16 out_rot_en_w;
+ u16 out_rot_dis_w;
+};
+
+/**
+ * struct samsung_fimc_driverdata - per-device type driver data for init time.
+ *
+ * @variant: the variant information for this driver.
+ * @dev_cnt: number of fimc sub-devices available in SoC
+ */
+struct samsung_fimc_driverdata {
+ struct samsung_fimc_variant *variant[FIMC_MAX_DEVS];
+ int devs_cnt;
+};
+
+struct fimc_ctx;
+
+/**
+ * struct fimc_subdev - abstraction for a FIMC entity
+ *
+ * @slock: the spinlock protecting this data structure
+ * @lock: the mutex protecting this data structure
+ * @pdev: pointer to the FIMC platform device
+ * @id: FIMC device index (0..2)
+ * @clock[]: the clocks required for FIMC operation
+ * @regs: the mapped hardware registers
+ * @regs_res: the resource claimed for IO registers
+ * @irq: interrupt number of the FIMC subdevice
+ * @irqlock: spinlock protecting videbuffer queue
+ * @m2m: memory-to-memory V4L2 device information
+ * @state: the FIMC device state flags
+ */
+struct fimc_dev {
+ spinlock_t slock;
+ struct mutex lock;
+ struct platform_device *pdev;
+ struct samsung_fimc_variant *variant;
+ int id;
+ struct clk *clock[NUM_FIMC_CLOCKS];
+ void __iomem *regs;
+ struct resource *regs_res;
+ int irq;
+ spinlock_t irqlock;
+ struct workqueue_struct *work_queue;
+ struct fimc_m2m_device m2m;
+ unsigned long state;
+};
+
+/**
+ * fimc_ctx - the device context data
+ *
+ * @lock: mutex protecting this data structure
+ * @s_frame: source frame properties
+ * @d_frame: destination frame properties
+ * @out_order_1p: output 1-plane YCBCR order
+ * @out_order_2p: output 2-plane YCBCR order
+ * @in_order_1p input 1-plane YCBCR order
+ * @in_order_2p: input 2-plane YCBCR order
+ * @in_path: input mode (DMA or camera)
+ * @out_path: output mode (DMA or FIFO)
+ * @scaler: image scaler properties
+ * @effect: image effect
+ * @rotation: image clockwise rotation in degrees
+ * @flip: image flip mode
+ * @flags: an additional flags for image conversion
+ * @state: flags to keep track of user configuration
+ * @fimc_dev: the FIMC device this context applies to
+ * @m2m_ctx: memory-to-memory device context
+ */
+struct fimc_ctx {
+ spinlock_t slock;
+ struct fimc_frame s_frame;
+ struct fimc_frame d_frame;
+ u32 out_order_1p;
+ u32 out_order_2p;
+ u32 in_order_1p;
+ u32 in_order_2p;
+ enum fimc_datapath in_path;
+ enum fimc_datapath out_path;
+ struct fimc_scaler scaler;
+ struct fimc_effect effect;
+ int rotation;
+ u32 flip;
+ u32 flags;
+ u32 state;
+ struct fimc_dev *fimc_dev;
+ struct v4l2_m2m_ctx *m2m_ctx;
+};
+
+
+extern struct fimc_fmt fimc_formats[];
+extern struct videobuf_queue_ops fimc_qops;
+
+static inline int tiled_fmt(struct fimc_fmt *fmt)
+{
+ return 0;
+}
+
+static inline void fimc_hw_clear_irq(struct fimc_dev *dev)
+{
+ u32 cfg = readl(dev->regs + S5P_CIGCTRL);
+ cfg |= S5P_CIGCTRL_IRQ_CLR;
+ writel(cfg, dev->regs + S5P_CIGCTRL);
+}
+
+static inline void fimc_hw_start_scaler(struct fimc_dev *dev)
+{
+ u32 cfg = readl(dev->regs + S5P_CISCCTRL);
+ cfg |= S5P_CISCCTRL_SCALERSTART;
+ writel(cfg, dev->regs + S5P_CISCCTRL);
+}
+
+static inline void fimc_hw_stop_scaler(struct fimc_dev *dev)
+{
+ u32 cfg = readl(dev->regs + S5P_CISCCTRL);
+ cfg &= ~S5P_CISCCTRL_SCALERSTART;
+ writel(cfg, dev->regs + S5P_CISCCTRL);
+}
+
+static inline void fimc_hw_dis_capture(struct fimc_dev *dev)
+{
+ u32 cfg = readl(dev->regs + S5P_CIIMGCPT);
+ cfg &= ~(S5P_CIIMGCPT_IMGCPTEN | S5P_CIIMGCPT_IMGCPTEN_SC);
+ writel(cfg, dev->regs + S5P_CIIMGCPT);
+}
+
+static inline void fimc_hw_start_in_dma(struct fimc_dev *dev)
+{
+ u32 cfg = readl(dev->regs + S5P_MSCTRL);
+ cfg |= S5P_MSCTRL_ENVID;
+ writel(cfg, dev->regs + S5P_MSCTRL);
+}
+
+static inline void fimc_hw_stop_in_dma(struct fimc_dev *dev)
+{
+ u32 cfg = readl(dev->regs + S5P_MSCTRL);
+ cfg &= ~S5P_MSCTRL_ENVID;
+ writel(cfg, dev->regs + S5P_MSCTRL);
+}
+
+
+/* -----------------------------------------------------*/
+/* fimc-core.c */
+int fimc_set_scaler_info(struct fimc_ctx *ctx);
+struct fimc_fmt *find_format(struct v4l2_format *f);
+int fimc_m2m_enum_fmt(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f);
+int fimc_m2m_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qc);
+int fimc_m2m_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl);
+int fimc_m2m_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl);
+int fimc_check_scaler_ratio(struct v4l2_rect *r, struct fimc_frame *f);
+int fimc_prepare_addr(struct fimc_ctx *ctx,
+ struct fimc_vid_buffer *buf, enum v4l2_buf_type type);
+int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags);
+
+/* -----------------------------------------------------*/
+/* fimc-reg.c */
+int fimc_hw_reset_fifo_ov(struct fimc_dev *dev);
+void fimc_hw_reset(struct fimc_dev *dev);
+void fimc_hw_set_rotation(struct fimc_ctx *ctx);
+void fimc_hw_set_target_format(struct fimc_ctx *ctx);
+void fimc_hw_set_out_dma(struct fimc_ctx *ctx);
+void fimc_hw_en_lastirq(struct fimc_dev *dev, int enable);
+void fimc_hw_en_irq(struct fimc_dev *dev, int enable);
+void fimc_hw_en_autoload(struct fimc_dev *dev, int enable);
+void fimc_hw_set_prescaler(struct fimc_ctx *ctx);
+void fimc_hw_set_scaler(struct fimc_ctx *ctx);
+void fimc_hw_en_capture(struct fimc_ctx *ctx);
+void fimc_hw_set_effect(struct fimc_ctx *ctx);
+void fimc_hw_set_in_dma(struct fimc_ctx *ctx);
+void fimc_hw_set_input_path(struct fimc_ctx *ctx);
+void fimc_hw_set_output_path(struct fimc_ctx *ctx);
+void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *paddr);
+void fimc_hw_set_output_addr(struct fimc_dev *dev, struct fimc_addr *paddr);
+void fimc_hw_shadow_dis(struct fimc_dev *ctx, int off);
+
+#endif /* FIMC_CORE_H_ */
diff --git a/drivers/media/video/samsung/fimc/fimc-reg.c b/drivers/media/video/samsung/fimc/fimc-reg.c
new file mode 100644
index 0000000..d072ec5
--- /dev/null
+++ b/drivers/media/video/samsung/fimc/fimc-reg.c
@@ -0,0 +1,571 @@
+/*
+ * Register interface file for Samsung Camera Interface (FIMC) driver
+ *
+ * Copyright (c) 2010 Samsung Electronics
+ *
+ * Sylwester Nawrocki, s.nawrocki@samsung.com
+ *
+ * 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.
+*/
+
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <mach/map.h>
+
+#include "fimc-core.h"
+
+
+int fimc_hw_reset_fifo_ov(struct fimc_dev *dev)
+{
+ u32 cfg, status;
+
+ status = readl(dev->regs + S5P_CISTATUS);
+
+ if ((S5P_CISTATUS_OVFIY | S5P_CISTATUS_OVFICB | S5P_CISTATUS_OVFICR)
+ & status) {
+ cfg = readl(dev->regs + S5P_CIWDOFST);
+ cfg |= (S5P_CIWDOFST_CLROVFIY | S5P_CIWDOFST_CLROVFICB
+ | S5P_CIWDOFST_CLROVFICR);
+ writel(cfg, dev->regs + S5P_CIWDOFST);
+
+ cfg = readl(dev->regs + S5P_CIWDOFST);
+ cfg &= ~(S5P_CIWDOFST_CLROVFIY | S5P_CIWDOFST_CLROVFICB
+ | S5P_CIWDOFST_CLROVFICR);
+ writel(cfg, dev->regs + S5P_CIWDOFST);
+ }
+
+ return 0;
+}
+
+void fimc_hw_reset(struct fimc_dev *dev)
+{
+ u32 cfg;
+
+ cfg = readl(dev->regs + S5P_CISRCFMT);
+ cfg |= S5P_CISRCFMT_ITU601_8BIT;
+ writel(cfg, dev->regs + S5P_CISRCFMT);
+
+ /* Software reset. */
+ cfg = readl(dev->regs + S5P_CIGCTRL);
+ cfg |= (S5P_CIGCTRL_SWRST | S5P_CIGCTRL_IRQ_LEVEL);
+ writel(cfg, dev->regs + S5P_CIGCTRL);
+ msleep(1);
+
+ cfg = readl(dev->regs + S5P_CIGCTRL);
+ cfg &= ~S5P_CIGCTRL_SWRST;
+ writel(cfg, dev->regs + S5P_CIGCTRL);
+
+}
+
+void fimc_hw_set_rotation(struct fimc_ctx *ctx)
+{
+ u32 cfg, flip;
+ struct fimc_dev *dev = ctx->fimc_dev;
+
+ cfg = readl(dev->regs + S5P_CITRGFMT);
+ cfg &= ~(S5P_CITRGFMT_INROT90 | S5P_CITRGFMT_OUTROT90);
+
+ flip = readl(dev->regs + S5P_MSCTRL);
+ flip &= ~S5P_MSCTRL_FLIP_MASK;
+
+ /*
+ * The input and output rotator cannot work simultaneously.
+ * Use the output rotator in output DMA mode or the input rotator
+ * in direct fifo output mode.
+ */
+ if (ctx->rotation == 90 || ctx->rotation == 270) {
+ if (ctx->out_path == FIMC_LCDFIFO) {
+ cfg |= S5P_CITRGFMT_INROT90;
+ if (ctx->rotation == 270)
+ flip |= S5P_MSCTRL_FLIP_180;
+ } else {
+ cfg |= S5P_CITRGFMT_OUTROT90;
+ if (ctx->rotation == 270)
+ cfg |= S5P_CITRGFMT_FLIP_180;
+ }
+ } else if (ctx->rotation == 180) {
+ if (ctx->out_path == FIMC_LCDFIFO)
+ flip |= S5P_MSCTRL_FLIP_180;
+ else
+ cfg |= S5P_CITRGFMT_FLIP_180;
+ }
+ if (ctx->rotation == 180 || ctx->rotation == 270)
+ writel(flip, dev->regs + S5P_MSCTRL);
+ writel(cfg, dev->regs + S5P_CITRGFMT);
+}
+
+static u32 fimc_hw_get_in_flip(u32 ctx_flip)
+{
+ u32 flip = S5P_MSCTRL_FLIP_NORMAL;
+
+ switch (ctx_flip) {
+ case FLIP_X_AXIS:
+ flip = S5P_MSCTRL_FLIP_X_MIRROR;
+ break;
+ case FLIP_Y_AXIS:
+ flip = S5P_MSCTRL_FLIP_Y_MIRROR;
+ break;
+ case FLIP_XY_AXIS:
+ flip = S5P_MSCTRL_FLIP_180;
+ break;
+ }
+
+ return flip;
+}
+
+static u32 fimc_hw_get_target_flip(u32 ctx_flip)
+{
+ u32 flip = S5P_CITRGFMT_FLIP_NORMAL;
+
+ switch (ctx_flip) {
+ case FLIP_X_AXIS:
+ flip = S5P_CITRGFMT_FLIP_X_MIRROR;
+ break;
+ case FLIP_Y_AXIS:
+ flip = S5P_CITRGFMT_FLIP_Y_MIRROR;
+ break;
+ case FLIP_XY_AXIS:
+ flip = S5P_CITRGFMT_FLIP_180;
+ break;
+ case FLIP_NONE:
+ break;
+
+ }
+ return flip;
+}
+
+void fimc_hw_set_target_format(struct fimc_ctx *ctx)
+{
+ u32 cfg;
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct fimc_frame *frame = &ctx->d_frame;
+
+ dbg("w= %d, h= %d color: %d", frame->width,
+ frame->height, frame->fmt->color);
+
+ cfg = readl(dev->regs + S5P_CITRGFMT);
+ cfg &= ~(S5P_CITRGFMT_FMT_MASK | S5P_CITRGFMT_HSIZE_MASK |
+ S5P_CITRGFMT_VSIZE_MASK);
+
+ switch (frame->fmt->color) {
+ case S5P_FIMC_RGB565:
+ case S5P_FIMC_RGB666:
+ case S5P_FIMC_RGB888:
+ cfg |= S5P_CITRGFMT_RGB;
+ break;
+ case S5P_FIMC_YCBCR420:
+ cfg |= S5P_CITRGFMT_YCBCR420;
+ break;
+ case S5P_FIMC_YCBYCR422:
+ case S5P_FIMC_YCRYCB422:
+ case S5P_FIMC_CBYCRY422:
+ case S5P_FIMC_CRYCBY422:
+ if (frame->fmt->planes_cnt == 1)
+ cfg |= S5P_CITRGFMT_YCBCR422_1P;
+ else
+ cfg |= S5P_CITRGFMT_YCBCR422;
+ break;
+ default:
+ break;
+ }
+
+ cfg |= S5P_CITRGFMT_HSIZE(frame->width);
+ cfg |= S5P_CITRGFMT_VSIZE(frame->height);
+
+ if (ctx->rotation == 0) {
+ cfg &= ~S5P_CITRGFMT_FLIP_MASK;
+ cfg |= fimc_hw_get_target_flip(ctx->flip);
+ }
+ writel(cfg, dev->regs + S5P_CITRGFMT);
+
+ cfg = readl(dev->regs + S5P_CITAREA) & ~S5P_CITAREA_MASK;
+ cfg |= (frame->width * frame->height);
+ writel(cfg, dev->regs + S5P_CITAREA);
+}
+
+static void fimc_hw_set_out_dma_size(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct fimc_frame *frame = &ctx->d_frame;
+ u32 cfg = 0;
+
+ if (ctx->rotation == 90 || ctx->rotation == 270) {
+ cfg |= S5P_ORIG_SIZE_HOR(frame->f_height);
+ cfg |= S5P_ORIG_SIZE_VER(frame->f_width);
+ } else {
+ cfg |= S5P_ORIG_SIZE_HOR(frame->f_width);
+ cfg |= S5P_ORIG_SIZE_VER(frame->f_height);
+ }
+ writel(cfg, dev->regs + S5P_ORGOSIZE);
+}
+
+void fimc_hw_set_out_dma(struct fimc_ctx *ctx)
+{
+ u32 cfg;
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct fimc_frame *frame = &ctx->d_frame;
+ struct fimc_dma_offset *offset = &frame->dma_offset;
+
+ /* Set the input dma offsets. */
+ cfg = 0;
+ cfg |= S5P_CIO_OFFS_HOR(offset->y_h);
+ cfg |= S5P_CIO_OFFS_VER(offset->y_v);
+ writel(cfg, dev->regs + S5P_CIOYOFF);
+
+ cfg = 0;
+ cfg |= S5P_CIO_OFFS_HOR(offset->cb_h);
+ cfg |= S5P_CIO_OFFS_VER(offset->cb_v);
+ writel(cfg, dev->regs + S5P_CIOCBOFF);
+
+ cfg = 0;
+ cfg |= S5P_CIO_OFFS_HOR(offset->cr_h);
+ cfg |= S5P_CIO_OFFS_VER(offset->cr_v);
+ writel(cfg, dev->regs + S5P_CIOCROFF);
+
+ fimc_hw_set_out_dma_size(ctx);
+
+ /* Configure chroma components order. */
+ cfg = readl(dev->regs + S5P_CIOCTRL);
+
+ cfg &= ~(S5P_CIOCTRL_ORDER2P_MASK | S5P_CIOCTRL_ORDER422_MASK |
+ S5P_CIOCTRL_YCBCR_PLANE_MASK);
+
+ if (frame->fmt->planes_cnt == 1)
+ cfg |= ctx->out_order_1p;
+ else if (frame->fmt->planes_cnt == 2)
+ cfg |= ctx->out_order_2p | S5P_CIOCTRL_YCBCR_2PLANE;
+ else if (frame->fmt->planes_cnt == 3)
+ cfg |= S5P_CIOCTRL_YCBCR_3PLANE;
+
+ writel(cfg, dev->regs + S5P_CIOCTRL);
+}
+
+void fimc_hw_en_autoload(struct fimc_dev *dev, int enable)
+{
+ u32 cfg = readl(dev->regs + S5P_ORGISIZE);
+ if (enable)
+ cfg |= S5P_CIREAL_ISIZE_AUTOLOAD_EN;
+ else
+ cfg &= ~S5P_CIREAL_ISIZE_AUTOLOAD_EN;
+ writel(cfg, dev->regs + S5P_ORGISIZE);
+}
+
+void fimc_hw_en_lastirq(struct fimc_dev *dev, int enable)
+{
+ unsigned long flags;
+ u32 cfg;
+
+ spin_lock_irqsave(&dev->slock, flags);
+
+ cfg = readl(dev->regs + S5P_CIOCTRL);
+ if (enable)
+ cfg |= S5P_CIOCTRL_LASTIRQ_ENABLE;
+ else
+ cfg &= ~S5P_CIOCTRL_LASTIRQ_ENABLE;
+ writel(cfg, dev->regs + S5P_CIOCTRL);
+
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+void fimc_hw_set_prescaler(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct fimc_scaler *sc = &ctx->scaler;
+ u32 cfg = 0, shfactor;
+
+ shfactor = 10 - (sc->hfactor + sc->vfactor);
+
+ cfg |= S5P_CISCPRERATIO_SHFACTOR(shfactor);
+ cfg |= S5P_CISCPRERATIO_HOR(sc->pre_hratio);
+ cfg |= S5P_CISCPRERATIO_VER(sc->pre_vratio);
+ writel(cfg, dev->regs + S5P_CISCPRERATIO);
+
+ cfg = 0;
+ cfg |= S5P_CISCPREDST_WIDTH(sc->pre_dst_width);
+ cfg |= S5P_CISCPREDST_HEIGHT(sc->pre_dst_height);
+ writel(cfg, dev->regs + S5P_CISCPREDST);
+}
+
+void fimc_hw_set_scaler(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct fimc_scaler *sc = &ctx->scaler;
+ struct fimc_frame *src_frame = &ctx->s_frame;
+ struct fimc_frame *dst_frame = &ctx->d_frame;
+ u32 cfg = 0;
+
+ if (!(ctx->flags & FIMC_COLOR_RANGE_NARROW))
+ cfg |= (S5P_CISCCTRL_CSCR2Y_WIDE | S5P_CISCCTRL_CSCY2R_WIDE);
+
+ if (!sc->enabled)
+ cfg |= S5P_CISCCTRL_SCALERBYPASS;
+
+ if (sc->scaleup_h)
+ cfg |= S5P_CISCCTRL_SCALEUP_H;
+
+ if (sc->scaleup_v)
+ cfg |= S5P_CISCCTRL_SCALEUP_V;
+
+ if (sc->copy_mode)
+ cfg |= S5P_CISCCTRL_ONE2ONE;
+
+
+ if (ctx->in_path == FIMC_DMA) {
+ if (src_frame->fmt->color == S5P_FIMC_RGB565)
+ cfg |= S5P_CISCCTRL_INRGB_FMT_RGB565;
+ else if (src_frame->fmt->color == S5P_FIMC_RGB666)
+ cfg |= S5P_CISCCTRL_INRGB_FMT_RGB666;
+ else if (src_frame->fmt->color == S5P_FIMC_RGB888)
+ cfg |= S5P_CISCCTRL_INRGB_FMT_RGB888;
+ }
+
+ if (ctx->out_path == FIMC_DMA) {
+ if (dst_frame->fmt->color == S5P_FIMC_RGB565)
+ cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB565;
+ else if (dst_frame->fmt->color == S5P_FIMC_RGB666)
+ cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB666;
+ else if (dst_frame->fmt->color == S5P_FIMC_RGB888)
+ cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB888;
+ } else {
+ cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB888;
+
+ if (ctx->flags & FIMC_SCAN_MODE_INTERLACED)
+ cfg |= S5P_CISCCTRL_INTERLACE;
+ }
+
+ dbg("main_hratio= 0x%X main_vratio= 0x%X",
+ sc->main_hratio, sc->main_vratio);
+
+ cfg |= S5P_CISCCTRL_SC_HORRATIO(sc->main_hratio);
+ cfg |= S5P_CISCCTRL_SC_VERRATIO(sc->main_vratio);
+
+ writel(cfg, dev->regs + S5P_CISCCTRL);
+}
+
+void fimc_hw_en_capture(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *dev = ctx->fimc_dev;
+ u32 cfg;
+
+ cfg = readl(dev->regs + S5P_CIIMGCPT);
+ /* One shot mode for output DMA or freerun for FIFO. */
+ if (ctx->out_path == FIMC_DMA)
+ cfg |= S5P_CIIMGCPT_CPT_FREN_ENABLE;
+ else
+ cfg &= ~S5P_CIIMGCPT_CPT_FREN_ENABLE;
+
+ if (ctx->scaler.enabled)
+ cfg |= S5P_CIIMGCPT_IMGCPTEN_SC;
+
+ writel(cfg | S5P_CIIMGCPT_IMGCPTEN, dev->regs + S5P_CIIMGCPT);
+}
+
+void fimc_hw_shadow_dis(struct fimc_dev *dev, int off)
+{
+ u32 cfg = readl(dev->regs + S5P_CIGCTRL);
+ if (off)
+ cfg |= S5P_CIGCTRL_SHDW_DISABLE;
+ else
+ cfg &= ~S5P_CIGCTRL_SHDW_DISABLE;
+ writel(cfg, dev->regs + S5P_CIGCTRL);
+}
+
+
+void fimc_hw_overflow_irq_en(struct fimc_dev *dev, int on)
+{
+ u32 cfg = readl(dev->regs + S5P_CIGCTRL);
+ if (on)
+ cfg |= S5P_CIGCTRL_IRQ_OVFEN;
+ else
+ cfg &= ~S5P_CIGCTRL_IRQ_OVFEN;
+ writel(cfg, dev->regs + S5P_CIGCTRL);
+}
+
+
+void fimc_hw_set_effect(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct fimc_effect *effect = &ctx->effect;
+ u32 cfg = (S5P_CIIMGEFF_IE_ENABLE | S5P_CIIMGEFF_IE_SC_AFTER);
+
+ cfg |= effect->type;
+
+ if (effect->type == S5P_FIMC_EFFECT_ARBITRARY) {
+ cfg |= S5P_CIIMGEFF_PAT_CB(effect->pat_cb);
+ cfg |= S5P_CIIMGEFF_PAT_CR(effect->pat_cr);
+ }
+
+ writel(cfg, dev->regs + S5P_CIIMGEFF);
+}
+
+static void fimc_hw_set_in_dma_size(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct fimc_frame *frame = &ctx->s_frame;
+ u32 cfg_o = 0;
+ u32 cfg_r = 0;
+
+ if (FIMC_LCDFIFO == ctx->out_path)
+ cfg_r |= S5P_CIREAL_ISIZE_AUTOLOAD_EN;
+
+ cfg_o |= S5P_ORIG_SIZE_HOR(frame->f_width);
+ cfg_o |= S5P_ORIG_SIZE_VER(frame->f_height);
+ cfg_r |= S5P_CIREAL_ISIZE_WIDTH(frame->width);
+ cfg_r |= S5P_CIREAL_ISIZE_HEIGHT(frame->height);
+
+ writel(cfg_o, dev->regs + S5P_ORGISIZE);
+ writel(cfg_r, dev->regs + S5P_CIREAL_ISIZE);
+}
+
+void fimc_hw_set_in_dma(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct fimc_frame *frame = &ctx->s_frame;
+ struct fimc_dma_offset *offset = &frame->dma_offset;
+ u32 cfg = 0;
+
+ /* Set the pixel offsets. */
+ cfg |= S5P_CIO_OFFS_HOR(offset->y_h);
+ cfg |= S5P_CIO_OFFS_VER(offset->y_v);
+ writel(cfg, dev->regs + S5P_CIIYOFF);
+
+ cfg = 0;
+ cfg |= S5P_CIO_OFFS_HOR(offset->cb_h);
+ cfg |= S5P_CIO_OFFS_VER(offset->cb_v);
+ writel(cfg, dev->regs + S5P_CIICBOFF);
+
+ cfg = 0;
+ cfg |= S5P_CIO_OFFS_HOR(offset->cr_h);
+ cfg |= S5P_CIO_OFFS_VER(offset->cr_v);
+ writel(cfg, dev->regs + S5P_CIICROFF);
+
+ /* Input original and real size. */
+ fimc_hw_set_in_dma_size(ctx);
+
+ /* Autoload is used currently only in FIFO mode. */
+ fimc_hw_en_autoload(dev, ctx->out_path == FIMC_LCDFIFO);
+
+ /* Set the input DMA to process single frame only. */
+ cfg = readl(dev->regs + S5P_MSCTRL);
+ cfg &= ~(S5P_MSCTRL_FLIP_MASK
+ | S5P_MSCTRL_INFORMAT_MASK
+ | S5P_MSCTRL_IN_BURST_COUNT_MASK
+ | S5P_MSCTRL_INPUT_MASK
+ | S5P_MSCTRL_C_INT_IN_MASK
+ | S5P_MSCTRL_2P_IN_ORDER_MASK);
+
+ cfg |= (S5P_MSCTRL_FRAME_COUNT(1) | S5P_MSCTRL_INPUT_MEMORY);
+
+ switch (frame->fmt->color) {
+ case S5P_FIMC_RGB565:
+ case S5P_FIMC_RGB666:
+ case S5P_FIMC_RGB888:
+ cfg |= S5P_MSCTRL_INFORMAT_RGB;
+ break;
+ case S5P_FIMC_YCBCR420:
+ cfg |= S5P_MSCTRL_INFORMAT_YCBCR420;
+
+ if (frame->fmt->planes_cnt == 2)
+ cfg |= ctx->in_order_2p | S5P_MSCTRL_C_INT_IN_2PLANE;
+ else
+ cfg |= S5P_MSCTRL_C_INT_IN_3PLANE;
+
+ break;
+ case S5P_FIMC_YCBYCR422:
+ case S5P_FIMC_YCRYCB422:
+ case S5P_FIMC_CBYCRY422:
+ case S5P_FIMC_CRYCBY422:
+ if (frame->fmt->planes_cnt == 1) {
+ cfg |= ctx->in_order_1p
+ | S5P_MSCTRL_INFORMAT_YCBCR422_1P;
+ } else {
+ cfg |= S5P_MSCTRL_INFORMAT_YCBCR422;
+
+ if (frame->fmt->planes_cnt == 2)
+ cfg |= ctx->in_order_2p
+ | S5P_MSCTRL_C_INT_IN_2PLANE;
+ else
+ cfg |= S5P_MSCTRL_C_INT_IN_3PLANE;
+ }
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * Input DMA flip mode (and rotation).
+ * Do not allow simultaneous rotation and flipping.
+ */
+ if (!ctx->rotation && ctx->out_path == FIMC_LCDFIFO)
+ cfg |= fimc_hw_get_in_flip(ctx->flip);
+
+ writel(cfg, dev->regs + S5P_MSCTRL);
+
+ /* Input/output DMA linear/tiled mode. */
+ cfg = readl(dev->regs + S5P_CIDMAPARAM);
+ cfg &= ~S5P_CIDMAPARAM_TILE_MASK;
+
+ if (tiled_fmt(ctx->s_frame.fmt))
+ cfg |= S5P_CIDMAPARAM_R_64X32;
+
+ if (tiled_fmt(ctx->d_frame.fmt))
+ cfg |= S5P_CIDMAPARAM_W_64X32;
+
+ writel(cfg, dev->regs + S5P_CIDMAPARAM);
+}
+
+
+void fimc_hw_set_input_path(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *dev = ctx->fimc_dev;
+
+ u32 cfg = readl(dev->regs + S5P_MSCTRL);
+ cfg &= ~S5P_MSCTRL_INPUT_MASK;
+
+ if (ctx->in_path == FIMC_DMA)
+ cfg |= S5P_MSCTRL_INPUT_MEMORY;
+ else
+ cfg |= S5P_MSCTRL_INPUT_EXTCAM;
+
+ writel(cfg, dev->regs + S5P_MSCTRL);
+}
+
+void fimc_hw_set_output_path(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *dev = ctx->fimc_dev;
+
+ u32 cfg = readl(dev->regs + S5P_CISCCTRL);
+ cfg &= ~S5P_CISCCTRL_LCDPATHEN_FIFO;
+ if (ctx->out_path == FIMC_LCDFIFO)
+ cfg |= S5P_CISCCTRL_LCDPATHEN_FIFO;
+ writel(cfg, dev->regs + S5P_CISCCTRL);
+}
+
+void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *paddr)
+{
+ u32 cfg = 0;
+
+ cfg = readl(dev->regs + S5P_CIREAL_ISIZE);
+ cfg |= S5P_CIREAL_ISIZE_ADDR_CH_DIS;
+ writel(cfg, dev->regs + S5P_CIREAL_ISIZE);
+
+ writel(paddr->y, dev->regs + S5P_CIIYSA0);
+ writel(paddr->cb, dev->regs + S5P_CIICBSA0);
+ writel(paddr->cr, dev->regs + S5P_CIICRSA0);
+
+ cfg &= ~S5P_CIREAL_ISIZE_ADDR_CH_DIS;
+ writel(cfg, dev->regs + S5P_CIREAL_ISIZE);
+}
+
+void fimc_hw_set_output_addr(struct fimc_dev *dev, struct fimc_addr *paddr)
+{
+ int i;
+ /* Set all the output register sets to point to single video buffer. */
+ for (i = 0; i < FIMC_MAX_OUT_BUFS; i++) {
+ writel(paddr->y, dev->regs + S5P_CIOYSA(i));
+ writel(paddr->cb, dev->regs + S5P_CIOCBSA(i));
+ writel(paddr->cr, dev->regs + S5P_CIOCRSA(i));
+ }
+}
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 047f7e6..974dc51 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -277,6 +277,7 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_RGB565 v4l2_fourcc('R', 'G', 'B', 'P') /* 16 RGB-5-6-5 */
#define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q') /* 16 RGB-5-5-5 BE */
#define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R') /* 16 RGB-5-6-5 BE */
+#define V4L2_PIX_FMT_RGB666 v4l2_fourcc('R', 'G', 'B', 'H') /* 18 RGB-6-6-6 */
#define V4L2_PIX_FMT_BGR24 v4l2_fourcc('B', 'G', 'R', '3') /* 24 BGR-8-8-8 */
#define V4L2_PIX_FMT_RGB24 v4l2_fourcc('R', 'G', 'B', '3') /* 24 RGB-8-8-8 */
#define V4L2_PIX_FMT_BGR32 v4l2_fourcc('B', 'G', 'R', '4') /* 32 BGR-8-8-8-8 */
--
1.7.2
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