This driver implements memory to memory (DMA-DMA) operations in v4l2-mem2mem
framework, including color conversion, image resizing, flipping and rotation.
For direct local fifo path to lcd controller, i.e. to enable interworking
between framebuffer and fimc driver v4l2-subdev API is used.
Framebuffer registers its fifo path subdevice per each window and initializes
corresponding s3c_fifo_link:sub_dev entry in the platform so fimc driver
is able acquire corresponding framebuffer subdevice, when its video device
is opened. This enables mapping fifo source and target device drivers according
to existing data paths in hardware.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Reviewed-by: Pawel Osciak <p.osciak@xxxxxxxxxxx>
Reviewed-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
drivers/media/video/Kconfig | 18 +
drivers/media/video/Makefile | 1 +
drivers/media/video/samsung-fimc/Makefile | 3 +
drivers/media/video/samsung-fimc/fimc-core.c | 1612 ++++++++++++++++++++++++++
drivers/media/video/samsung-fimc/fimc-core.h | 509 ++++++++
drivers/media/video/samsung-fimc/fimc-fifo.c | 822 +++++++++++++
drivers/media/video/samsung-fimc/fimc-reg.c | 572 +++++++++
include/linux/videodev2.h | 1 +
8 files changed, 3538 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-fifo.c
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..5cf2534 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -969,6 +969,15 @@ config VIDEO_OMAP2
---help---
This is a v4l2 driver for the TI OMAP2 camera capture interface
+config VIDEO_SAMSUNG_FIMC
+ tristate "Samsung S5P Camera Interface (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 the Samsung S5P camera capture interface
+
#
# USB Multimedia device configuration
#
@@ -1150,4 +1159,13 @@ config VIDEO_MEM2MEM_TESTDEV
This is a virtual test device for the memory-to-memory driver
framework.
+config VIDEO_SAMSUNG_FIMC
+ tristate "Samsung S5PV210 Camera Interface (video postprocessor) driver"
+ depends on VIDEO_DEV && VIDEO_V4L2
+ select VIDEOBUF_DMA_CONTIG
+ select V4L2_MEM2MEM_DEV
+ default n
+ help
+ Samsung S5PV210 camera interface (video postprocessor) driver.
+
endif # V4L_MEM2MEM_DRIVERS
diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
index cc93859..522d037 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..c5c40c1
--- /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 fimc-fifo.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..23b95a8
--- /dev/null
+++ b/drivers/media/video/samsung-fimc/fimc-core.c
@@ -0,0 +1,1612 @@
+/*
+ * S5P camera interface (video postprocessor) driver
+ *
+ * Copyright (c) 2010 Samsung Electronics
+ *
+ * Sylwester Nawrocki, s.nawrocki@xxxxxxxxxxx
+ *
+ * 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 <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf-core.h>
+#include <media/videobuf-dma-contig.h>
+
+#include "fimc-core.h"
+
+
+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 s5p_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(s5p_fimc_ctrls); ++i)
+ if (id == s5p_fimc_ctrls[i].id)
+ return &s5p_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_dma_offset *d_ofs = &ctx->s_frame.dma_offset;
+ int tx, ty, sx, sy;
+ int width, height, h_ofs, v_ofs;
+ int ret;
+ struct fimc_frame *src_frame = &ctx->s_frame;
+ struct fimc_frame *dst_frame = &ctx->d_frame;
+
+ if (ctx->in_path == FIMC_DMA) {
+ if ((ctx->rotation == 90 || ctx->rotation == 270)
+ && FIMC_LCDFIFO == ctx->out_path) {
+ /* here we are using only the input rotator */
+ width = src_frame->height;
+ height = src_frame->width;
+ h_ofs = d_ofs->y_v;
+ v_ofs = d_ofs->y_h;
+ } else {
+ width = src_frame->width;
+ height = src_frame->height;
+ h_ofs = d_ofs->y_h;
+ v_ofs = d_ofs->y_v;
+ }
+ } else {
+ width = src_frame->width;
+ height = src_frame->height;
+ h_ofs = d_ofs->y_h;
+ v_ofs = d_ofs->y_v;
+ }
+
+ tx = dst_frame->width;
+ ty = dst_frame->height;
+
+ if (tx <= 0 || ty <= 0) {
+ v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev,
+ "invalid target size: %d %d", tx, ty);
+ return -EINVAL;
+ }
+
+ sx = width;
+ sy = height;
+
+ sc->real_width = width;
+ sc->real_height = height;
+
+ if (sx <= 0 || sy <= 0) {
+ err("invalid source size: s: %d %d, t: %d %d", sx, sy, tx, ty);
+ return -EINVAL;
+ }
+
+ 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);
+
+ dbg("sc->main_hratio= %d, sc->main_vratio= %d",
+ sc->main_hratio, sc->main_vratio);
+ dbg("sc->hfactor= %d, sc->vfactor= %d", sc->hfactor, 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 (src_frame->fmt->color == dst_frame->fmt->color
+ && src_frame->width == dst_frame->width
+ && src_frame->height == dst_frame->height)
+ sc->copy_mode = 1;
+ else
+ sc->copy_mode = 0;
+
+ return 0;
+}
+
+
+static irqreturn_t fimc_isr(int irq, void *priv)
+{
+ struct fimc_ctx *ctx;
+ struct fimc_vid_buffer *src_buf, *dst_buf;
+ struct fimc_dev *dev = (struct fimc_dev *)priv;
+ struct v4l2_fimc_outp_dev *outp = &dev->outp;
+
+ BUG_ON(!dev);
+ fimc_hw_clear_irq(dev);
+
+ spin_lock(&dev->slock);
+
+ /* v4l2-mem2mem */
+ if (test_and_clear_bit(ST_M2M_PEND, &dev->state)) {
+ ctx = v4l2_m2m_get_curr_priv(dev->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(&dev->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(&dev->irqlock);
+ v4l2_m2m_job_finish(dev->m2m.m2m_dev, ctx->m2m_ctx);
+ }
+ goto isr_unlock;
+ }
+
+ /* local fifo mode */
+ fimc_hw_reset_fifo_ov(dev);
+
+ if (test_bit(ST_LCDFIFO_RUN, &dev->state)) {
+
+ /* schedule next buffer in hw if there is any available */
+ if (!list_empty(&outp->buf_q)) {
+ ctx = outp->ctx;
+
+ spin_lock(&dev->irqlock);
+ outp->curr_buf->vb.state = VIDEOBUF_DONE;
+ spin_unlock(&dev->irqlock);
+ wake_up(&outp->curr_buf->vb.done);
+
+ outp->curr_buf = list_entry(outp->buf_q.next,
+ struct fimc_vid_buffer, vb.queue);
+ outp->curr_buf->vb.state = VIDEOBUF_ACTIVE;
+ list_del(&outp->curr_buf->vb.queue);
+
+ spin_lock(&ctx->slock);
+ fimc_prepare_addr(ctx, outp->curr_buf,
+ V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ /* set source buffer address in hw */
+ fimc_hw_set_input_addr(dev, &ctx->s_frame.paddr);
+ spin_unlock(&ctx->slock);
+ }
+
+ } else if (test_and_clear_bit(ST_LCDFIFO_PEND, &dev->state)) {
+
+ set_bit(ST_LCDFIFO_RUN, &dev->state);
+ wake_up(&dev->irq_queue);
+ }
+
+isr_unlock:
+ spin_unlock(&dev->slock);
+ return IRQ_HANDLED;
+}
+
+
+static void fimc_dma_run(void *priv)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct fimc_frame *frame;
+ u32 ret;
+
+ if (!ctx || ctx->out_path != FIMC_DMA)
+ return;
+
+ set_bit(ST_M2M_PEND, &dev->state);
+
+ ctx->flags |= (FIMC_SRC_ADDR | FIMC_DST_ADDR);
+ ret = fimc_prepare_config(ctx, ctx->flags);
+ if (ret) {
+ err("Wrong configuration");
+ return;
+ }
+
+ if (dev->m2m.ctx != ctx)
+ ctx->flags |= FIMC_PARAMS;
+
+ frame = &ctx->s_frame;
+ dbg("SRC: width= %d, height= %d, f_width= %d, f_height= %d "
+ "offs_h= %d, offs_v= %d",
+ frame->width, frame->height,
+ frame->f_width, frame->f_height,
+ frame->offs_h, frame->offs_v);
+
+ frame = &ctx->d_frame;
+ dbg("DST: width= %d, height= %d, f_width= %d, f_height= %d "
+ "offs_h= %d, offs_v= %d",
+ frame->width, frame->height,
+ frame->f_width, frame->f_height,
+ frame->offs_h, frame->offs_v);
+
+ fimc_hw_set_input_addr(dev, &ctx->s_frame.paddr);
+
+ if (ctx->flags & FIMC_PARAMS) {
+ fimc_hw_set_input_path(ctx);
+ fimc_hw_set_in_dma(ctx);
+ if (fimc_set_scaler_info(ctx)) {
+ err("scaler configuration error");
+ return;
+ }
+ 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->flags & (FIMC_DST_ADDR | FIMC_PARAMS))
+ fimc_hw_set_output_addr(dev, &ctx->d_frame.paddr);
+
+ if (ctx->flags & FIMC_PARAMS)
+ fimc_hw_set_out_dma(ctx);
+
+ if (ctx->scaler.enabled)
+ fimc_hw_start_scaler(dev);
+ fimc_hw_en_capture(ctx);
+
+ ctx->flags = 0;
+
+ if (ctx->in_path == FIMC_DMA)
+ fimc_hw_start_in_dma(dev);
+
+ dev->m2m.ctx = ctx;
+}
+
+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);
+}
+
+/*
+ * This function check dimensions, operation and color mode and
+ * pre-calculates offset and scaling coefficients.
+ * Returns 0 if dimensions are valid, non zero otherwise.
+ * Does not alter any FIMC registers.
+ */
+int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
+{
+ struct fimc_frame *src_frame, *dst_frame;
+ struct fimc_vid_buffer *buf = NULL;
+ int ret = 0;
+
+ dbg("flags= 0x%X", flags);
+
+ src_frame = &ctx->s_frame;
+ dst_frame = &ctx->d_frame;
+
+ if (flags & FIMC_PARAMS) {
+ if ((FIMC_DMA == ctx->out_path) &&
+ (ctx->rotation == 90 || ctx->rotation == 270)) {
+ swap(dst_frame->f_width, dst_frame->f_height);
+ swap(dst_frame->width, dst_frame->height);
+ }
+
+ /* prepare the output offset related attributes for scaler */
+ dst_frame->dma_offset.y_h = dst_frame->offs_h
+ * (dst_frame->fmt->depth >> 3);
+ dst_frame->dma_offset.y_v = dst_frame->offs_v;
+
+ dst_frame->dma_offset.cb_h = dst_frame->offs_h;
+ dst_frame->dma_offset.cb_v = dst_frame->offs_v;
+
+ dst_frame->dma_offset.cr_h = dst_frame->offs_h;
+ dst_frame->dma_offset.cr_v = dst_frame->offs_v;
+
+ if (3 == dst_frame->fmt->planes_cnt) {
+ dst_frame->dma_offset.cb_h >>= 1;
+ dst_frame->dma_offset.cb_v >>= 1;
+ dst_frame->dma_offset.cr_h >>= 1;
+ dst_frame->dma_offset.cr_v >>= 1;
+ }
+
+ dbg("OUT OFFSET: color= %d, y_h= %d, y_v= %d",
+ dst_frame->fmt->color,
+ dst_frame->dma_offset.y_h, dst_frame->dma_offset.y_v);
+
+ /* prepare the input offset related attributes for scaler */
+ src_frame->dma_offset.y_h = src_frame->offs_h
+ * (src_frame->fmt->depth >> 3);
+ src_frame->dma_offset.y_v = src_frame->offs_v;
+
+ src_frame->dma_offset.cb_h = src_frame->offs_h;
+ src_frame->dma_offset.cb_v = src_frame->offs_v;
+
+ src_frame->dma_offset.cr_h = src_frame->offs_h;
+ src_frame->dma_offset.cr_v = src_frame->offs_v;
+
+ if (3 == src_frame->fmt->planes_cnt) {
+ src_frame->dma_offset.cb_h >>= 1;
+ src_frame->dma_offset.cb_v >>= 1;
+ src_frame->dma_offset.cr_h >>= 1;
+ src_frame->dma_offset.cr_v >>= 1;
+ }
+
+ dbg("IN OFFSET: color= %d, y_h= %d, y_v= %d",
+ src_frame->fmt->color, src_frame->dma_offset.y_h,
+ src_frame->dma_offset.y_v);
+
+ fimc_set_yuv_order(ctx);
+
+ /* Check against the scaler ratio */
+ if (src_frame->height > SCALER_MAX_VRATIO*dst_frame->height ||
+ src_frame->width > SCALER_MAX_HRATIO*dst_frame->width) {
+ err("Out of the scaler range");
+ return -EINVAL;
+ }
+ } /* if (flags & FIMC_PARAMS) */
+
+ /* 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)
+{
+ int ret = 0;
+ struct fimc_frame *frame;
+ struct fimc_addr *paddr;
+ u32 pix_size;
+
+ ctx_m2m_get_frame(frame, ctx, type);
+ paddr = &frame->paddr;
+
+ if (!buf)
+ return -EINVAL;
+
+ pix_size = frame->width * frame->height;
+
+ dbg("%d buff_cnt, 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 unsigned int get_plane_size(struct fimc_frame *frame, unsigned int plane)
+{
+ unsigned long size = 0;
+
+ if (frame == NULL)
+ return -EINVAL;
+
+ if (plane >= frame->fmt->planes_cnt)
+ return 0;
+
+ if (1 == frame->fmt->planes_cnt) {
+ size = (frame->width * frame->height * frame->fmt->depth) >> 3;
+ } else if (frame->fmt->planes_cnt <= 3) {
+ switch (plane) {
+ case 0:
+ size = frame->width * frame->height;
+ break;
+ case 1: /* fall through */
+ case 2:
+ if (S5P_FIMC_YCBCR420 == frame->fmt->color
+ && 2 != frame->fmt->planes_cnt)
+ size = (frame->width * frame->height) >> 2;
+ else /* 422 */
+ size = (frame->width * frame->height) >> 1;
+ break;
+ }
+ } else {
+ size = 0;
+ }
+
+ return size;
+}
+
+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)
+{
+ unsigned long flags;
+ struct fimc_ctx *ctx = vq->priv_data;
+ struct fimc_dev *dev = ctx->fimc_dev;
+
+
+ if (ctx->out_path != FIMC_LCDFIFO) {
+ v4l2_m2m_buf_queue(ctx->m2m_ctx, vq, vb);
+ } else {
+ /* queue the buffer and start transaction if required */
+ spin_lock_irqsave(&ctx->slock, flags);
+ list_add_tail(&vb->queue, &dev->outp.buf_q);
+ vb->state = VIDEOBUF_QUEUED;
+ spin_unlock_irqrestore(&ctx->slock, flags);
+
+ spin_lock_irqsave(&dev->slock, flags);
+ if (!test_bit(ST_LCDFIFO_RUN, &dev->state)) {
+ set_bit(ST_LCDFIFO_PEND, &dev->state);
+ queue_work(dev->work_queue, &dev->outp.work);
+ }
+ spin_unlock_irqrestore(&dev->slock, flags);
+ }
+}
+
+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 *dev = ctx->fimc_dev;
+
+ strncpy(cap->driver, dev->pdev->name, sizeof(cap->driver) - 1);
+ strncpy(cap->card, dev->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)
+{
+ u32 max_width, max_height;
+ struct fimc_fmt *fmt;
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+ u32 mod_x, mod_y;
+
+ fmt = find_format(f);
+ if (!fmt) {
+ v4l2_err(&dev->m2m.v4l2_dev,
+ "Fourcc format (0x%08x) 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 (V4L2_BUF_TYPE_VIDEO_OUTPUT == f->type) {
+ max_width = dev->pldata->scaler_dis_w;
+ max_height = dev->pldata->scaler_dis_w;
+ } else if (V4L2_BUF_TYPE_VIDEO_CAPTURE == f->type) {
+ max_width = dev->pldata->out_rot_dis_w;
+ max_height = dev->pldata->out_rot_dis_w;
+ } 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;
+ } else {
+ mod_x = DMA_MIN_SIZE;
+ mod_y = DMA_MIN_SIZE;
+ }
+
+ 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) {
+ pix->bytesperline = (pix->width * fmt->depth) >> 3;
+ } else {
+ u32 f_width = pix->bytesperline*8/fmt->depth;
+ if (f_width > max_width)
+ pix->bytesperline = (max_width * fmt->depth) >> 3;
+ }
+
+ if (!pix->sizeimage)
+ 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_frame *frame;
+ struct v4l2_pix_format *pix;
+ struct videobuf_queue *src_vq = NULL,
+ *dst_vq = NULL;
+ struct fimc_ctx *ctx = priv;
+ struct v4l2_device *v4l2_dev = &ctx->fimc_dev->m2m.v4l2_dev;
+ 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 (videobuf_queue_is_busy(src_vq)) {
+ v4l2_err(v4l2_dev, "%s queue busy\n", __func__);
+ ret = -EBUSY;
+ goto s_fmt_out;
+ }
+
+ if (videobuf_queue_is_busy(dst_vq)) {
+ v4l2_err(v4l2_dev, "%s queue busy\n", __func__);
+ ret = -EBUSY;
+ goto s_fmt_out;
+ }
+
+ if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ frame = &ctx->s_frame;
+ ctx->flags |= FIMC_SRC_FMT;
+ } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ frame = &(ctx)->d_frame;
+ ctx->flags |= FIMC_DST_FMT;
+ } 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;
+ ctx->flags |= FIMC_PARAMS;
+ src_vq->field = dst_vq->field = pix->field;
+
+ 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;
+
+ if (!fimc_fifo_active(ctx->fimc_dev))
+ return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
+ else
+ return -EBUSY;
+}
+
+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;
+
+ if (!fimc_fifo_active(ctx->fimc_dev))
+ return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
+ else
+ return -EBUSY;
+}
+
+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_plat_fimc *pldata = ctx->fimc_dev->pldata;
+ int ret = 0;
+
+ ret = check_ctrl_val(ctx, ctrl);
+ if (ret != 0)
+ return ret;
+
+ switch (ctrl->id) {
+ case V4L2_CID_HFLIP:
+ if (ctrl->value)
+ ctx->flip |= FLIP_X_AXIS;
+ else
+ ctx->flip &= ~FLIP_X_AXIS;
+ break;
+
+ case V4L2_CID_VFLIP:
+ 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) {
+ /* use input rotator in LCDFIFO output mode only */
+ if (ctx->out_path == FIMC_LCDFIFO) {
+ if (!(pldata->capability & S5P_FIMC_IN_ROT))
+ return -EINVAL;
+ } else if (ctx->in_path == FIMC_DMA &&
+ !(pldata->capability & S5P_FIMC_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;
+ }
+
+ ctx->flags |= FIMC_PARAMS;
+ 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;
+ if (!ctx) {
+ WARN_ON(1);
+ return -ENOENT;
+ }
+
+ 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;
+
+ BUG_ON(!ctx);
+
+ 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_frame *f;
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *dev = ctx->fimc_dev;
+ int ret = 0;
+
+ if (cr->c.top < 0 || cr->c.left < 0) {
+ v4l2_err(&dev->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(&dev->m2m.v4l2_dev,
+ "crop width and height must be greater than 0\n");
+ return -EINVAL;
+ }
+
+ ctx_m2m_get_frame(f, ctx, cr->type);
+
+ dbg("%d %d %d %d f_w= %d, f_h= %d",
+ cr->c.left, cr->c.top, cr->c.width, cr->c.height,
+ f->f_width, f->f_height);
+
+ /* adjust to DMA_MIN_SIZE pixels boundary */
+ cr->c.width = ALIGN(cr->c.width, DMA_MIN_SIZE);
+ cr->c.height = ALIGN(cr->c.height, DMA_MIN_SIZE);
+ cr->c.left = ALIGN(cr->c.left, DMA_MIN_SIZE);
+ cr->c.top = ALIGN(cr->c.top, DMA_MIN_SIZE);
+
+ if ((cr->c.left + cr->c.width > f->o_width)
+ || (cr->c.top + cr->c.height > f->o_height)) {
+ v4l2_err(&dev->m2m.v4l2_dev, "Error in S_CROP params\n");
+ dbg("%d %d %d %d. %d %d",
+ cr->c.left, cr->c.top, cr->c.width, cr->c.height,
+ f->o_width, f->o_height);
+ return -EINVAL;
+ }
+
+ if ((ctx->flags & FIMC_SRC_FMT) && (ctx->flags & 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) {
+ v4l2_err(&dev->m2m.v4l2_dev, "Out of scaler range");
+ return -EINVAL;
+ }
+ }
+
+ f->offs_h = cr->c.left;
+ f->offs_v = cr->c.top;
+ f->width = cr->c.width;
+ f->height = cr->c.height;
+ ctx->flags |= FIMC_PARAMS;
+ 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 *dev = ctx->fimc_dev;
+
+ videobuf_queue_dma_contig_init(vq, &fimc_qops,
+ dev->m2m.v4l2_dev.dev,
+ &dev->irqlock, type, V4L2_FIELD_NONE,
+ sizeof(struct fimc_vid_buffer), priv);
+}
+
+static int fimc_m2m_open(struct file *file)
+{
+ struct fimc_dev *dev = video_drvdata(file);
+ struct fimc_ctx *ctx = NULL;
+ int err = 0;
+
+ mutex_lock(&dev->lock);
+ dev->m2m.refcnt++;
+ set_bit(ST_OUTDMA_RUN, &dev->state);
+ mutex_unlock(&dev->lock);
+
+
+ ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ file->private_data = ctx;
+ ctx->fimc_dev = dev;
+ /* default format */
+ ctx->s_frame.fmt = &fimc_formats[0];
+ ctx->d_frame.fmt = &fimc_formats[0];
+ /* per user process device context initialization */
+ ctx->flags = 0;
+ ctx->effect.type = S5P_FIMC_EFFECT_ORIGINAL;
+ ctx->in_path = FIMC_DMA;
+ ctx->out_path = FIMC_DMA;
+
+ ctx->m2m_ctx = v4l2_m2m_ctx_init(ctx, dev->m2m.m2m_dev, queue_init);
+
+ if (IS_ERR(ctx->m2m_ctx)) {
+ err = PTR_ERR(ctx->m2m_ctx);
+ kfree(ctx);
+ return err;
+ }
+
+ return 0;
+}
+
+static int fimc_m2m_release(struct file *file)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *dev = ctx->fimc_dev;
+
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
+ kfree(ctx);
+ mutex_lock(&dev->lock);
+ if (--dev->m2m.refcnt <= 0)
+ clear_bit(ST_OUTDMA_RUN, &dev->state);
+ mutex_unlock(&dev->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 *dev)
+{
+ struct video_device *vfd;
+ struct platform_device *pdev;
+ struct v4l2_device *v4l2_dev;
+ int ret = 0;
+
+ if (!dev)
+ return -ENODEV;
+
+ pdev = dev->pdev;
+ v4l2_dev = &dev->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, dev->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, dev->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, dev);
+ dev->m2m.vfd = vfd;
+ v4l2_info(v4l2_dev, "%s(): registered as /dev/video%d\n",
+ __func__, vfd->num);
+
+ platform_set_drvdata(pdev, dev);
+
+ dev->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops);
+
+ if (IS_ERR(dev->m2m.m2m_dev)) {
+ v4l2_err(v4l2_dev,
+ "%s(): failed to initialize v4l2-m2m device\n",
+ __func__);
+ ret = PTR_ERR(dev->m2m.m2m_dev);
+ goto err_m2m_r3;
+ }
+ return 0;
+
+err_m2m_r1:
+ v4l2_device_unregister(&dev->m2m.v4l2_dev);
+err_m2m_r2:
+ video_device_release(dev->m2m.vfd);
+err_m2m_r3:
+ video_unregister_device(dev->m2m.vfd);
+
+ return ret;
+}
+
+static void fimc_unregister_m2m_device(struct fimc_dev *dev)
+{
+ if (dev) {
+ v4l2_m2m_release(dev->m2m.m2m_dev);
+ video_unregister_device(dev->m2m.vfd);
+ video_device_release(dev->m2m.vfd);
+ v4l2_device_unregister(&dev->m2m.v4l2_dev);
+ }
+}
+
+static int fimc_probe(struct platform_device *pdev)
+{
+ struct fimc_dev *dev;
+ struct resource *res;
+ int ret = 0;
+
+ dev_dbg(&pdev->dev, "%s():\n", __func__);
+
+ if (!pdev->dev.platform_data) {
+ dev_err(&pdev->dev, "platform_data is not set\n");
+ return -ENOENT;
+ }
+
+ dev = kzalloc(sizeof(struct fimc_dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ dev->id = pdev->id;
+ dev->pdev = pdev;
+ dev->pldata = pdev->dev.platform_data;
+ dev->state = ST_IDLE;
+
+ spin_lock_init(&dev->irqlock);
+ init_waitqueue_head(&dev->irq_queue);
+ spin_lock_init(&dev->slock);
+
+ mutex_init(&dev->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;
+ }
+
+ dev->regs_res = request_mem_region(res->start, resource_size(res),
+ dev_name(&pdev->dev));
+ if (!dev->regs_res) {
+ dev_err(&pdev->dev, "failed to obtain register region\n");
+ ret = -ENOENT;
+ goto err_info;
+ }
+
+ dev->regs = ioremap(res->start, resource_size(res));
+ if (!dev->regs) {
+ dev_err(&pdev->dev, "failed to map registers\n");
+ ret = -ENXIO;
+ goto err_req_region;
+ }
+
+ /* FIMC clock */
+ dev->clock = clk_get(&pdev->dev, "sclk_fimc");
+ if (IS_ERR(dev->clock)) {
+ ret = -ENXIO;
+ dev_err(&pdev->dev, "failed to get fimc clock source\n");
+ goto err_regs_unmap;
+ }
+ clk_enable(dev->clock);
+
+ /* IRQ */
+ 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;
+ }
+ dev->irq = res->start;
+
+ fimc_hw_reset(dev);
+
+ ret = request_irq(dev->irq, fimc_isr, 0, pdev->name, dev);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to install irq (%d)\n", ret);
+ goto err_clk;
+ }
+
+ dev->work_queue = create_workqueue(dev_name(&dev->pdev->dev));
+ if (!dev->work_queue)
+ goto err_irq;
+
+ ret = fimc_register_m2m_device(dev);
+ if (ret)
+ goto err_wq;
+
+ ret = fimc_register_fifo_device(dev);
+ if (ret)
+ goto err_m2m;
+
+ fimc_hw_en_lastirq(dev, 1);
+
+ dev_dbg(&pdev->dev, "%s(): fimc-%d registered successfully\n",
+ __func__, dev->id);
+
+ return 0;
+
+err_m2m:
+ fimc_unregister_m2m_device(dev);
+err_wq:
+ destroy_workqueue(dev->work_queue);
+err_irq:
+ free_irq(dev->irq, dev);
+err_clk:
+ clk_disable(dev->clock);
+ clk_put(dev->clock);
+err_regs_unmap:
+ iounmap(dev->regs);
+err_req_region:
+ release_resource(dev->regs_res);
+ kfree(dev->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 *dev =
+ (struct fimc_dev *)platform_get_drvdata(pdev);
+
+ v4l2_info(&dev->m2m.v4l2_dev, "Removing %s\n", pdev->name);
+
+ free_irq(dev->irq, dev);
+
+ fimc_hw_reset(dev);
+
+ fimc_unregister_m2m_device(dev);
+ fimc_unregister_fifo_device(dev);
+
+ iounmap(dev->regs);
+ release_resource(dev->regs_res);
+ kfree(dev->regs_res);
+ kfree(dev);
+ return 0;
+}
+
+static struct platform_driver fimc_driver = {
+ .probe = fimc_probe,
+ .remove = __devexit_p(fimc_remove),
+ .driver = {
+ .name = "s5p-fimc",
+ .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 != 0) {
+ 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@xxxxxxxxxxx");
+MODULE_DESCRIPTION("S5PV210 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..ba5020a
--- /dev/null
+++ b/drivers/media/video/samsung-fimc/fimc-core.h
@@ -0,0 +1,509 @@
+/*
+ * Copyright (c) 2010 Samsung Electronics
+ *
+ * Sylwester Nawrocki, s.nawrocki@xxxxxxxxxxx
+ *
+ * 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 ctx_lcl_get_frame(frame, ctx, type) do { \
+ if (V4L2_BUF_TYPE_VIDEO_OUTPUT == (type)) { \
+ frame = &(ctx)->s_frame; \
+ } else if (V4L2_BUF_TYPE_VIDEO_OVERLAY == (type)) { \
+ frame = &(ctx)->d_frame; \
+ } else { \
+ v4l2_err(&(ctx)->fimc_dev->outp.v4l2_dev,\
+ "Wrong buffer/video queue type (%d)\n", type); \
+ return -EINVAL; \
+ } \
+} while (0)
+
+/* Time to wait for an interrupt whilst shutting down the lcdfifo mode. */
+#define FIMC_FIFO_SHDWN_TIMEOUT ((100*HZ)/1000)
+
+#define MODULE_NAME "s5p-fimc"
+#define MAX_FIMC_DEVICES 3
+#define S5P_FIMC_MAX_FRAMES 4
+#define DMA_MIN_SIZE 16
+#define SCALER_MAX_HRATIO 64
+#define SCALER_MAX_VRATIO 64
+
+#define FIMC_CHANGED_NONE 0
+#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)
+
+
+enum fimc_dev_flags {
+ ST_IDLE,
+ ST_OUTDMA_RUN,
+ ST_M2M_PEND,
+
+ ST_LCDFIFO_PEND,
+ ST_LCDFIFO_RUN
+};
+
+#define fimc_m2m_active(dev) test_bit(ST_OUTDMA_RUN, &(dev)->state)
+#define fimc_m2m_pending(dev) test_bit(ST_M2M_PEND, &(dev)->state)
+
+#define fimc_fifo_active(dev) test_bit(ST_LCDFIFO_RUN, &(dev)->state)
+#define fimc_fifo_pending(dev) test_bit(ST_LCDFIFO_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
+
+
+/* Definitions for flags field in struct fimc_ctx */
+#define IN_DMA_ACCESS_LINEAR 0 /* default */
+#define IN_DMA_ACCESS_TILED (1 << 0)
+#define OUT_DMA_ACCESS_LINEAR (0 << 1)
+#define OUT_DMA_ACCESS_TILED (1 << 1)
+#define SCAN_MODE_PROGRESSIVE (0 << 2)
+#define SCAN_MODE_INTERLACED (1 << 2)
+/* YCbCr data dynamic range selection for the RGB <-> YCBCR color space
+ * conversion. Y/Cb/Cr (0 ~ 255) : Wide default */
+#define S5P_FIMC_COLOR_RANGE_WIDE (0 << 3)
+/* Y (16 ~ 235), Cb/Cr (16 ~ 240) : Narrow */
+#define S5P_FIMC_COLOR_RANGE_NARROW (1 << 3)
+
+#define FLIP_NONE 0
+#define FLIP_X_AXIS 0x01
+#define FLIP_Y_AXIS 0x02
+#define FLIP_XY_AXIS (FLIP_X_AXIS | FLIP_Y_AXIS)
+
+
+struct fimc_fmt {
+ char *name;
+ u32 fourcc;
+ u32 color;
+ u32 depth;
+ /* number of plane video buffers used */
+ u16 buff_cnt;
+ /* number of planes for contiguous formats */
+ u16 planes_cnt;
+};
+
+/**
+ * struct fimc_dma_offset
+ * @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 s5pc_fimc_fb_osd
+ * @x: OSD rectangle top left x coordinate
+ * @y: OSD rectangle top left y coordinate
+ * @width: OSD rectangle width
+ * @height: OSD rectangle height
+ * @saved: the flag indicating whether this data structure is initialized
+ */
+struct fimc_fb_osd {
+ u32 x;
+ u32 y;
+ u32 width;
+ u32 height;
+ int saved;
+};
+
+/**
+ * struct s5p_fimc_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
+ * @enabled: flag indicating whether the scaler is used or not
+ * @hfactor: horizontal shift factor
+ * @vfactor: vertical shift factor
+ * @pre_hratio: prescaler horizontal ratio
+ * @pre_vratio: prescaler vertical ratio
+ * @pre_dst_width: prescaler destination width
+ * @pre_dst_height: pre-scaler destination height
+ * @scaleup_h: flag indicating scaling up horizontally
+ * @scaleup_v: flag indicating scaling up vertically
+ * @main_hratio: main scaler horizontal ratio
+ * @main_vratio: main scaler vertical ratio
+ * @real_width: src_width - offset
+ * @real_height: src_height - offset
+ * @copy_mode: flag indicating one to one mode, 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
+ * @y: 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
+ * @vb:
+ * @paddr:
+ * @index:
+ */
+struct fimc_vid_buffer {
+ struct videobuf_buffer vb;
+ struct fimc_addr paddr;
+ int index;
+};
+
+/**
+ * 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;
+};
+
+
+/* v4l2 memory to memory device abstraction */
+struct fimc_v4l_m2m_dev {
+ struct video_device *vfd;
+ struct v4l2_device v4l2_dev;
+ struct v4l2_m2m_dev *m2m_dev;
+ struct fimc_ctx *ctx;
+ int refcnt;
+};
+
+/* v4l2 output device */
+struct v4l2_fimc_outp_dev {
+ struct video_device *vfd;
+ struct v4l2_device v4l2_dev;
+ struct v4l2_subdev *sd[FIMC_MAX_FIFO_TARGETS];
+ struct work_struct work;
+ /* fimc_video_buffer queue head */
+ struct list_head buf_q;
+ /* pointer to currently processed video buffer */
+ struct fimc_vid_buffer *curr_buf;
+ /* video buffer queue for OUTPUT stream */
+ struct videobuf_queue vbq;
+ struct v4l2_format fmt;
+ struct fimc_ctx *ctx;
+ int refcnt;
+};
+
+
+struct fimc_ctx;
+
+/**
+ * struct fimc_subdev: abstraction for a FIMC entity
+ * @slock:
+ * @pdev: pointer to the FIMC platform device
+ * @pldata: pointer to the device platform data
+ * @id: FIMC device index (0..2)
+ * @clock:
+ * @regs:
+ * @regs_res:
+ * @mem_res:
+ * @irq: interrupt number of the FIMC subdevice
+ * @irqlock: spinlock protecting videbuffer queue
+ * @lock:
+ * @irq_queue:
+ * @work_queue:
+ * @m2m:
+ * @outp:
+ * @state:
+ */
+struct fimc_dev {
+ spinlock_t slock;
+ struct platform_device *pdev;
+ struct samsung_plat_fimc *pldata;
+ int id;
+ struct clk *clock;
+ void __iomem *regs;
+ struct resource *regs_res;
+ struct resource *mem_res;
+ int irq;
+ spinlock_t irqlock;
+ struct mutex lock;
+ wait_queue_head_t irq_queue;
+ struct workqueue_struct *work_queue;
+ struct fimc_v4l_m2m_dev m2m;
+ struct v4l2_fimc_outp_dev outp;
+ volatile unsigned long state;
+};
+
+
+/**
+ * fimc_ctx - the device context data structure
+ * @lock: mutex protecting the context data
+ * @s_frame: source frame properties
+ * @d_frame: destination frame properties
+ * @osd: osd (output) window parameters
+ * @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
+ * @out_path: output mode
+ * @scaler: image scaler properties
+ * @effect: image effect
+ * @rotation: image clockwise rotation in degrees
+ * @flip: image flip mode
+ * @updated: flags variable to keep track of user configurable
+ * parameters (ioctl)
+ * @fimc_dev: fimc device related to the context
+ * @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;
+ 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-fifo.c */
+int fimc_register_fifo_device(struct fimc_dev *dev);
+void fimc_unregister_fifo_device(struct fimc_dev *dev);
+
+/* -----------------------------------------------------*/
+/* 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-fifo.c b/drivers/media/video/samsung-fimc/fimc-fifo.c
new file mode 100644
index 0000000..9c11d13
--- /dev/null
+++ b/drivers/media/video/samsung-fimc/fimc-fifo.c
@@ -0,0 +1,822 @@
+/*
+ * S5P camera interface (video postprocessor) driver
+ *
+ * Copyright (c) 2010 Samsung Electronics
+ *
+ * Sylwester Nawrocki, s.nawrocki@xxxxxxxxxxx
+ *
+ * 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/device.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/bug.h>
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+
+#include <linux/fb.h>
+#include <mach/regs-fb.h>
+#include <plat/fb.h>
+#include <plat/fimc.h>
+#include <plat/fifo.h>
+
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf-core.h>
+#include <media/videobuf-dma-contig.h>
+
+#include "fimc-core.h"
+
+
+static int fimc_stop_lcdfifo(struct fimc_dev *dev)
+{
+ unsigned long flags;
+ struct v4l2_fimc_outp_dev *outp;
+
+ outp = &dev->outp;
+
+ if (fimc_fifo_active(dev) || fimc_fifo_pending(dev)) {
+
+ flush_workqueue(dev->work_queue);
+
+ /* disable fifo at frambuffer and fimc side */
+ v4l2_subdev_call(dev->outp.sd[FIMC_LCD_FIFO_TARGET],
+ video, s_stream, 0);
+ }
+
+ spin_lock_irqsave(&dev->slock, flags);
+
+ /* Processing of the last buffer in the videobuf queue is never finished
+ within the interrupt routine, so it needs to be done here.*/
+ if (outp->curr_buf) {
+ spin_lock(&dev->irqlock);
+ outp->curr_buf->vb.state = VIDEOBUF_DONE;
+ spin_unlock(&dev->irqlock);
+
+ wake_up(&outp->curr_buf->vb.done);
+ outp->curr_buf = NULL;
+ }
+ clear_bit(ST_LCDFIFO_RUN, &dev->state);
+
+ spin_unlock_irqrestore(&dev->slock, flags);
+ return 0;
+}
+
+void fimc_v4l2_dev_notify(struct v4l2_subdev *sd,
+ unsigned int notification, void *arg)
+{
+ struct fimc_dev *dev = v4l2_get_subdevdata(sd);
+
+ BUG_ON(!dev);
+
+ switch (notification) {
+ case 0:
+ spin_lock(&dev->slock);
+ fimc_hw_en_autoload(dev, false);
+ fimc_hw_dis_capture(dev);
+ fimc_hw_stop_in_dma(dev);
+ fimc_hw_stop_scaler(dev);
+ clear_bit(ST_LCDFIFO_RUN, &dev->state);
+ spin_unlock(&dev->slock);
+ break;
+ default:
+ break;
+ }
+}
+
+static void lcdfifo_try_run(void *priv)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct fimc_frame *frame;
+ unsigned long flags;
+
+ BUG_ON(dev->outp.sd[FIMC_LCD_FIFO_TARGET] == NULL);
+
+ frame = &ctx->s_frame;
+ dbg("SRC: width= %d, height= %d, f_width= %d, f_height= %d " \
+ "offs_h= %d, offs_v= %d",
+ frame->width, frame->height,
+ frame->f_width, frame->f_height,
+ frame->offs_h, frame->offs_v);
+
+ frame = &ctx->d_frame;
+ dbg("DST: width= %d, height= %d, f_width= %d, f_height= %d " \
+ "offs_h= %d, offs_v= %d",
+ frame->width, frame->height,
+ frame->f_width, frame->f_height,
+ frame->offs_h, frame->offs_v);
+
+ spin_lock_irqsave(&dev->slock, flags);
+ fimc_hw_set_input_addr(dev, &ctx->s_frame.paddr);
+ spin_unlock_irqrestore(&dev->slock, flags);
+
+ if (ctx->flags & FIMC_PARAMS) {
+ fimc_hw_set_input_path(ctx);
+ fimc_hw_set_in_dma(ctx);
+
+ if (fimc_set_scaler_info(ctx)) {
+ err("scaler configuration error");
+ return;
+ }
+
+ spin_lock_irqsave(&dev->slock, flags);
+ 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);
+ spin_unlock_irqrestore(&dev->slock, flags);
+ }
+
+ v4l2_subdev_call(dev->outp.sd[FIMC_LCD_FIFO_TARGET], video,
+ s_stream, 1);
+
+ spin_lock_irqsave(&dev->slock, flags);
+
+ fimc_hw_set_output_path(ctx);
+ if (ctx->scaler.enabled)
+ fimc_hw_start_scaler(dev);
+
+ fimc_hw_en_capture(ctx);
+ fimc_hw_start_in_dma(dev);
+
+ ctx->flags = 0;
+
+
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+static void fimc_worker(struct work_struct *work)
+{
+ int ret;
+ unsigned long flags;
+ struct v4l2_fimc_outp_dev *outp =
+ container_of(work, struct v4l2_fimc_outp_dev, work);
+ struct fimc_ctx *ctx = outp->ctx;
+ struct fimc_frame *f = &ctx->d_frame;
+ struct fimc_dev *dev;
+ struct v4l2_crop cr;
+
+ BUG_ON(!ctx || !ctx->fimc_dev);
+ dev = ctx->fimc_dev;
+
+ mutex_lock(&dev->lock);
+
+ if (fimc_fifo_active(dev) || list_empty(&outp->buf_q))
+ goto w_unlock;
+
+ /* Get the window parameters from framebuffer to apply its any
+ aligment requirements. */
+ cr.type = V4L2_BUF_TYPE_VIDEO_OVERLAY;
+ v4l2_subdev_call(outp->sd[FIMC_LCD_FIFO_TARGET],
+ video, g_crop, &cr);
+
+ f->offs_h = cr.c.left;
+ f->offs_v = cr.c.top;
+ f->width = cr.c.width;
+ f->height = cr.c.height;
+
+ ctx->flags &= ~(FIMC_SRC_ADDR | FIMC_DST_ADDR);
+ ret = fimc_prepare_config(ctx, ctx->flags);
+ if (ret)
+ goto w_unlock;
+
+ spin_lock_irqsave(&dev->slock, flags);
+ outp->curr_buf = list_entry(outp->buf_q.next,
+ struct fimc_vid_buffer, vb.queue);
+
+ spin_lock(&dev->irqlock);
+ outp->curr_buf->vb.state = VIDEOBUF_ACTIVE;
+ spin_unlock(&dev->irqlock);
+
+ list_del(&outp->curr_buf->vb.queue);
+ fimc_prepare_addr(ctx, outp->curr_buf,
+ V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ spin_unlock_irqrestore(&dev->slock, flags);
+
+ lcdfifo_try_run(ctx);
+
+w_unlock:
+ mutex_unlock(&dev->lock);
+}
+
+
+static int fimc_target_osd_sync(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct v4l2_cropcap osd;
+ struct v4l2_rect *r;
+ struct fimc_frame *frame;
+ u32 mod_x = DMA_MIN_SIZE - 1;
+ u32 mod_y = DMA_MIN_SIZE - 1;
+ int ret;
+
+ if (!dev || !dev->outp.sd[FIMC_LCD_FIFO_TARGET])
+ return -EINVAL;
+
+ ret = v4l2_subdev_call(dev->outp.sd[FIMC_LCD_FIFO_TARGET],
+ video, cropcap, &osd);
+ if (ret)
+ return ret;
+
+ r = &osd.defrect;
+ r->left &= ~mod_x;
+ r->top &= ~mod_y;
+ r->width &= ~mod_x;
+ r->height &= ~mod_y;
+
+ frame = &ctx->d_frame;
+ frame->f_width = r->width;
+ frame->f_height = r->height;
+ frame->width = r->width;
+ frame->height = r->height;
+ frame->o_width = r->width;
+ frame->o_height = r->height;
+ return 0;
+}
+
+/* Register any framebuffer fifo subdevices if not already registered. */
+static int fimc_register_fb_subdevices(struct fimc_dev *dev)
+{
+ struct s3c_fifo_link *link;
+ int i, ret = 0;
+
+ for (i = 0; i < FIMC_MAX_FIFO_TARGETS; i++) {
+ link = dev->pldata->fifo_targets[i];
+ if (!link)
+ continue;
+ mutex_lock(&link->slave_dev->mutex);
+ if (link->sub_dev) {
+ if (link->sub_dev->v4l2_dev) {
+ mutex_unlock(&link->slave_dev->mutex);
+ continue;
+ }
+ if (!v4l2_device_register_subdev(&dev->outp.v4l2_dev,
+ link->sub_dev)) {
+ v4l2_set_subdevdata(link->sub_dev, dev);
+ dev->outp.sd[i] = link->sub_dev;
+ } else {
+ dev->outp.sd[i] = NULL;
+ mutex_unlock(&link->slave_dev->mutex);
+ v4l2_err(&dev->outp.v4l2_dev,
+ "Failed to register fb subdevice\n");
+ return -ENODEV;
+ }
+ }
+ mutex_unlock(&link->slave_dev->mutex);
+ }
+ return ret;
+}
+
+/* Unregister fifo target subdevices. */
+static void fimc_unregister_fb_subdevices(struct fimc_dev *dev)
+{
+ int i;
+ struct s3c_fifo_link *link;
+
+ for (i = 0; i < FIMC_MAX_FIFO_TARGETS; i++) {
+ link = dev->pldata->fifo_targets[i];
+ if (!link)
+ continue;
+ mutex_lock(&link->slave_dev->mutex);
+ if (dev->outp.sd[i]) {
+ v4l2_device_unregister_subdev(dev->outp.sd[i]);
+ dev->outp.sd[i] = NULL;
+ }
+ mutex_unlock(&link->slave_dev->mutex);
+ }
+}
+
+static int fimc_open(struct file *file)
+{
+ struct fimc_dev *dev = video_drvdata(file);
+ int ret;
+
+ mutex_lock(&dev->lock);
+
+ dbg("pid: %d, state: 0x%lx, refcnt= %d",
+ task_pid_nr(current), dev->state, dev->outp.refcnt);
+
+ if (dev->outp.refcnt++ == 0) {
+ ret = fimc_register_fb_subdevices(dev);
+ if (ret)
+ goto op_err;
+
+ if (!dev->outp.sd[FIMC_LCD_FIFO_TARGET]) {
+ v4l2_err(&dev->outp.v4l2_dev,
+ "Lcd fifo subdevice not found\n");
+ ret = -ENODEV;
+ goto op_err;
+ }
+ }
+
+ file->private_data = dev->outp.ctx;
+
+op_err:
+ mutex_unlock(&dev->lock);
+ return ret;
+}
+
+static int fimc_close(struct file *file)
+{
+ struct fimc_dev *dev = video_drvdata(file);
+
+ mutex_lock(&dev->lock);
+
+ dbg("pid: %d, state: 0x%lx, refcnt= %d",
+ task_pid_nr(current), dev->state, dev->outp.refcnt);
+
+ if (--dev->outp.refcnt <= 0) {
+ fimc_stop_lcdfifo(dev);
+ videobuf_stop(&dev->outp.vbq);
+ fimc_unregister_fb_subdevices(dev);
+ }
+ dbg("pid: %d, state: 0x%lx, refcnt= %d",
+ task_pid_nr(current), dev->state, dev->outp.refcnt);
+
+ mutex_unlock(&dev->lock);
+ return 0;
+}
+
+static unsigned int fimc_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ return POLLERR;
+}
+
+static int fimc_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct v4l2_fimc_outp_dev *outp = &ctx->fimc_dev->outp;
+
+ return videobuf_mmap_mapper(&outp->vbq, vma);
+}
+
+/* video device file operations */
+static const struct v4l2_file_operations fimc_fops = {
+ .owner = THIS_MODULE,
+ .open = fimc_open,
+ .release = fimc_close,
+ .poll = fimc_poll,
+ .ioctl = video_ioctl2,
+ .mmap = fimc_mmap,
+};
+
+static int fimc_querycap_output(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *dev = ctx->fimc_dev;
+
+ strncpy(cap->driver, dev->pdev->name, sizeof(cap->driver) - 1);
+ strncpy(cap->card, dev->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_OVERLAY | V4L2_CAP_VIDEO_OUTPUT;
+
+ return 0;
+}
+
+static int fimc_g_fmt_output(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_frame *frame = &ctx->s_frame;
+
+ 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;
+}
+
+static int fimc_try_fmt_output(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct fimc_fmt *fmt;
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+ u32 max_width, max_height;
+ u32 mod_x = DMA_MIN_SIZE - 1;
+ u32 mod_y = DMA_MIN_SIZE - 1;
+
+ fmt = find_format(f);
+ if (!fmt) {
+ v4l2_err(&dev->outp.v4l2_dev,
+ "Fourcc format (0x%08x) 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;
+
+ max_width = dev->pldata->scaler_dis_w;
+ max_height = dev->pldata->scaler_dis_w;
+
+ 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 - 1); /* 64x32 tile */
+ mod_y = (32 - 1);
+ }
+
+ pix->width &= ~mod_x;
+ pix->height &= ~mod_y;
+ if (0 == pix->width)
+ pix->width = mod_x + 1;
+ if (0 == pix->height)
+ pix->height = mod_y + 1;
+
+ if (0 == pix->bytesperline) {
+ pix->bytesperline = (pix->width * fmt->depth) >> 3;
+ } else {
+ u32 f_width = pix->bytesperline*8/fmt->depth;
+ if (f_width > max_width)
+ pix->bytesperline = (max_width * fmt->depth) >> 3;
+ }
+
+ if (0 == pix->sizeimage)
+ pix->sizeimage = pix->height * pix->bytesperline;
+
+ dbg("pix->bytesperline= %d, fmt->depth= %d",
+ pix->bytesperline, fmt->depth);
+
+ return 0;
+}
+
+
+static int fimc_s_fmt_output(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct fimc_frame *frame;
+ struct v4l2_pix_format *pix;
+ struct v4l2_format fmt;
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *dev = ctx->fimc_dev;
+ int ret;
+
+ BUG_ON(!ctx);
+
+ if (fimc_fifo_active(dev))
+ return -EBUSY;
+
+ ret = fimc_try_fmt_output(file, priv, f);
+ if (ret)
+ return ret;
+
+ mutex_lock(&dev->lock);
+
+ frame = &ctx->s_frame;
+ pix = &f->fmt.pix;
+ frame->fmt = find_format(f);
+ if (!frame->fmt) {
+ mutex_unlock(&dev->lock);
+ return -EINVAL;
+ }
+
+ /* source frame format */
+ 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;
+
+ /* destination frame format */
+ fimc_target_osd_sync(ctx);
+
+ fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_RGB24;
+ ret = v4l2_subdev_call(dev->outp.sd[FIMC_LCD_FIFO_TARGET],
+ video, s_fmt, &fmt);
+
+ ctx->flags |= FIMC_PARAMS | FIMC_SRC_FMT;
+ mutex_unlock(&dev->lock);
+ return ret;
+}
+
+static int fimc_streamon_output(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct fimc_ctx *ctx = priv;
+ struct v4l2_fimc_outp_dev *outp = &ctx->fimc_dev->outp;
+
+ if (fimc_fifo_active(ctx->fimc_dev))
+ return -EBUSY;
+
+ return videobuf_streamon(&outp->vbq);
+}
+
+static int fimc_streamoff_output(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ unsigned long flags;
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *dev = ctx->fimc_dev;
+ int ret = 0;
+
+ spin_lock_irqsave(&dev->slock, flags);
+
+ if (!fimc_fifo_active(dev)) {
+ spin_unlock_irqrestore(&dev->slock, flags);
+ } else {
+ spin_unlock_irqrestore(&dev->slock, flags);
+ fimc_stop_lcdfifo(dev);
+ ret = videobuf_streamoff(&dev->outp.vbq);
+ }
+ return ret;
+}
+
+static int fimc_reqbufs_output(struct file *file, void *priv,
+ struct v4l2_requestbuffers *reqbufs)
+{
+ struct fimc_ctx *ctx = priv;
+ struct v4l2_fimc_outp_dev *outp = &ctx->fimc_dev->outp;
+
+ if (fimc_fifo_active(ctx->fimc_dev))
+ return -EBUSY;
+
+ return videobuf_reqbufs(&outp->vbq, reqbufs);
+}
+
+static int fimc_querybuf_output(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = priv;
+ struct v4l2_fimc_outp_dev *outp = &ctx->fimc_dev->outp;
+
+ if (fimc_fifo_active(ctx->fimc_dev))
+ return -EBUSY;
+
+ return videobuf_querybuf(&outp->vbq, buf);
+}
+
+static int fimc_qbuf_output(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = priv;
+ struct v4l2_fimc_outp_dev *outp = &ctx->fimc_dev->outp;
+
+ return videobuf_qbuf(&outp->vbq, buf);
+}
+
+static int fimc_dqbuf_output(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = priv;
+
+ return videobuf_dqbuf(&ctx->fimc_dev->outp.vbq, buf,
+ file->f_flags & O_NONBLOCK);
+}
+
+static int fimc_cropcap_output(struct file *file, void *fh,
+ struct v4l2_cropcap *cr)
+{
+ struct fimc_ctx *ctx = fh;
+ struct fimc_dev *dev = ctx->fimc_dev;
+ struct fimc_frame *f = &ctx->s_frame;
+
+ if (cr->type == V4L2_BUF_TYPE_VIDEO_OVERLAY) {
+ return v4l2_subdev_call(dev->outp.sd[FIMC_LCD_FIFO_TARGET],
+ video, cropcap, cr);
+ } else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ cr->bounds.left = 0;
+ cr->bounds.top = 0;
+ cr->bounds.width = f->f_width;
+ cr->bounds.height = f->f_height;
+ cr->defrect.left = f->offs_h;
+ cr->defrect.top = f->offs_v;
+ cr->defrect.width = f->o_width;
+ cr->defrect.height = f->o_height;
+ } else {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int fimc_g_crop_output(struct file *file, void *fh, struct v4l2_crop *cr)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_frame *f = &ctx->s_frame;
+ struct fimc_dev *dev = ctx->fimc_dev;
+
+ if (cr->type == V4L2_BUF_TYPE_VIDEO_OVERLAY) {
+ return v4l2_subdev_call(dev->outp.sd[FIMC_LCD_FIFO_TARGET],
+ video, g_crop, cr);
+ } else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ cr->c.left = f->offs_h;
+ cr->c.top = f->offs_v;
+ cr->c.width = f->width;
+ cr->c.height = f->height;
+ } else {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int fimc_s_crop_output(struct file *file, void *fh, struct v4l2_crop *cr)
+{
+ struct fimc_frame *f;
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *dev = ctx->fimc_dev;
+ int ret = 0;
+
+ if (fimc_fifo_active(dev))
+ return -EBUSY;
+
+ if (cr->c.top < 0 || cr->c.left < 0) {
+ v4l2_err(&dev->outp.v4l2_dev,
+ "doesn't support negative values for top & left\n");
+ return -EINVAL;
+ }
+
+ ctx_lcl_get_frame(f, ctx, cr->type);
+
+ /* adjust to DMA_MIN_SIZE pixel boundary */
+ cr->c.width = ALIGN(cr->c.width, DMA_MIN_SIZE);
+ cr->c.height = ALIGN(cr->c.height, DMA_MIN_SIZE);
+ cr->c.left = ALIGN(cr->c.left, DMA_MIN_SIZE);
+ cr->c.top = ALIGN(cr->c.top, DMA_MIN_SIZE);
+
+ dbg("%d %d %d %d f_w= %d, f_h= %d",
+ cr->c.left, cr->c.top, cr->c.width, cr->c.height,
+ f->f_width, f->f_height);
+
+ if ((cr->c.left + cr->c.width > f->o_width)
+ || (cr->c.top + cr->c.height > f->o_height)) {
+ v4l2_err(&dev->outp.v4l2_dev, "Error in S_CROP params\n");
+ return -EINVAL;
+ }
+
+ if ((ctx->flags & FIMC_SRC_FMT) && (ctx->flags & FIMC_DST_FMT)) {
+ 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_OVERLAY)
+ ret = fimc_check_scaler_ratio(&cr->c, &ctx->s_frame);
+
+ if (ret) {
+ v4l2_err(&dev->outp.v4l2_dev, "Out of scaler range");
+ return -EINVAL;
+ }
+ }
+
+ f->offs_h = cr->c.left;
+ f->offs_v = cr->c.top;
+ f->width = cr->c.width;
+ f->height = cr->c.height;
+
+ if (cr->type == V4L2_BUF_TYPE_VIDEO_OVERLAY)
+ return v4l2_subdev_call(dev->outp.sd[FIMC_LCD_FIFO_TARGET],
+ video, s_crop, cr);
+ return 0;
+}
+
+
+static const struct v4l2_ioctl_ops fimc_ioctl_ops = {
+ .vidioc_querycap = fimc_querycap_output,
+
+ .vidioc_enum_fmt_vid_out = fimc_m2m_enum_fmt,
+ .vidioc_try_fmt_vid_out = fimc_try_fmt_output,
+ .vidioc_s_fmt_vid_out = fimc_s_fmt_output,
+ .vidioc_g_fmt_vid_out = fimc_g_fmt_output,
+
+ .vidioc_reqbufs = fimc_reqbufs_output,
+ .vidioc_querybuf = fimc_querybuf_output,
+
+ .vidioc_qbuf = fimc_qbuf_output,
+ .vidioc_dqbuf = fimc_dqbuf_output,
+
+ .vidioc_streamon = fimc_streamon_output,
+ .vidioc_streamoff = fimc_streamoff_output,
+
+ .vidioc_queryctrl = fimc_m2m_queryctrl,
+ .vidioc_g_ctrl = fimc_m2m_g_ctrl,
+ .vidioc_s_ctrl = fimc_m2m_s_ctrl,
+
+ .vidioc_g_crop = fimc_g_crop_output,
+ .vidioc_s_crop = fimc_s_crop_output,
+ .vidioc_cropcap = fimc_cropcap_output
+};
+
+/* Register FIMC video device for local fifo path mode. */
+int fimc_register_fifo_device(struct fimc_dev *dev)
+{
+ int ret = 0;
+ struct video_device *vfd;
+ struct fimc_ctx *ctx;
+ struct v4l2_device *v4l2_dev = &dev->outp.v4l2_dev;
+
+ /* set name if it is empty */
+ if (!v4l2_dev->name[0])
+ snprintf(v4l2_dev->name, sizeof(v4l2_dev->name),
+ "%s.%d.v4l2_output", MODULE_NAME, dev->id);
+
+ ret = v4l2_device_register(NULL, v4l2_dev);
+ if (ret)
+ goto err_info;
+
+ vfd = video_device_alloc();
+ if (!vfd) {
+ v4l2_err(v4l2_dev, "Failed to allocate video device\n");
+ ret = -ENOMEM;
+ goto err_v4l2_reg;
+ }
+
+ vfd->fops = &fimc_fops;
+ vfd->ioctl_ops = &fimc_ioctl_ops;
+ vfd->minor = -1;
+ vfd->release = video_device_release;
+ snprintf(vfd->name, sizeof(vfd->name), "%s%d", MODULE_NAME, dev->id);
+
+ ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
+ if (ret) {
+ v4l2_err(v4l2_dev, "Failed to register video device\n");
+ goto err_vd_reg;
+ }
+ video_set_drvdata(vfd, dev);
+
+ INIT_WORK(&dev->outp.work, fimc_worker);
+
+ dev->outp.vfd = vfd;
+ v4l2_dev->notify = fimc_v4l2_dev_notify;
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx) {
+ ret = -ENOMEM;
+ goto err_ctx;
+ }
+ ctx->fimc_dev = dev;
+ /* default format RGB888 */
+ ctx->s_frame.fmt = &fimc_formats[2];
+ ctx->d_frame.fmt = &fimc_formats[2];
+
+ ctx->in_path = FIMC_DMA;
+ ctx->out_path = FIMC_LCDFIFO;
+ ctx->effect.type = S5P_FIMC_EFFECT_ORIGINAL;
+ ctx->flags |= FIMC_DST_FMT;
+ fimc_target_osd_sync(ctx);
+
+ dev->outp.ctx = ctx;
+
+ spin_lock_init(&ctx->slock);
+ INIT_LIST_HEAD(&dev->outp.buf_q);
+
+ /* source video bufer queue for output device in FIMC FIFO mode */
+ videobuf_queue_dma_contig_init(&dev->outp.vbq, &fimc_qops,
+ dev->outp.v4l2_dev.dev, &dev->irqlock,
+ V4L2_BUF_TYPE_VIDEO_OUTPUT, V4L2_FIELD_NONE,
+ sizeof(struct fimc_vid_buffer), (void *)ctx);
+
+ dev->outp.fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_RGB24;
+ dev->outp.refcnt = 0;
+
+ v4l2_info(v4l2_dev, "FIMC fifo driver registered as /dev/video%d\n",
+ vfd->num);
+ return 0;
+
+err_ctx:
+ video_unregister_device(dev->outp.vfd);
+err_vd_reg:
+ video_device_release(vfd);
+err_v4l2_reg:
+ v4l2_device_unregister(v4l2_dev);
+err_info:
+ dev_err(&dev->pdev->dev, "failed to install\n");
+ return ret;
+}
+
+void fimc_unregister_fifo_device(struct fimc_dev *dev)
+{
+ if (dev && dev->outp.vfd) {
+ video_unregister_device(dev->outp.vfd);
+ video_device_release(dev->outp.vfd);
+ v4l2_device_unregister(&dev->outp.v4l2_dev);
+ kfree(dev->outp.ctx);
+ }
+}
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..93857f8
--- /dev/null
+++ b/drivers/media/video/samsung-fimc/fimc-reg.c
@@ -0,0 +1,572 @@
+/*
+ * Register interface file for Samsung Camera Interface (FIMC) driver
+ *
+ * Copyright (c) 2010 Samsung Electronics
+ *
+ * Sylwester Nawrocki, s.nawrocki@xxxxxxxxxxx
+ *
+ * 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 <plat/regs-fimc.h>
+#include <plat/fimc.h>
+#include <linux/delay.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);
+
+ /* sw 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,
+ in input DMA mode only the output rotator shall be used. */
+ 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_OUT_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_OUTFORMAT_RGB;
+ break;
+ case S5P_FIMC_YCBCR420:
+ cfg |= S5P_CITRGFMT_OUTFORMAT_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_OUTFORMAT_YCBCR422_1PLANE;
+ else
+ cfg |= S5P_CITRGFMT_OUTFORMAT_YCBCR422;
+ break;
+ default:
+ break;
+ }
+
+ cfg |= S5P_CITRGFMT_TARGETHSIZE(frame->width);
+ cfg |= S5P_CITRGFMT_TARGETVSIZE(frame->height);
+
+ if (!ctx->rotation) {
+ cfg &= ~S5P_CITRGFMT_FLIP_MASK;
+ cfg |= fimc_hw_get_target_flip(ctx->flip);
+ }
+ writel(cfg, dev->regs + S5P_CITRGFMT);
+
+ cfg = S5P_CITAREA_TARGET_AREA(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;
+
+ dbg("h= 0x%X w= 0x%X", frame->f_width, frame->f_height);
+
+ if (ctx->rotation == 90 || ctx->rotation == 270) {
+ cfg |= S5P_ORGOSIZE_HORIZONTAL(frame->f_height);
+ cfg |= S5P_ORGOSIZE_VERTICAL(frame->f_width);
+ } else {
+ cfg |= S5P_ORGOSIZE_HORIZONTAL(frame->f_width);
+ cfg |= S5P_ORGOSIZE_VERTICAL(frame->f_height);
+ }
+ dbg("ORGOSIZE: 0x%X", cfg);
+ 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;
+
+ /* input dma offsets */
+ cfg = 0;
+ cfg |= S5P_CIOYOFF_HORIZONTAL(offset->y_h);
+ cfg |= S5P_CIOYOFF_VERTICAL(offset->y_v);
+ writel(cfg, dev->regs + S5P_CIOYOFF);
+
+ cfg = 0;
+ cfg |= S5P_CIOCBOFF_HORIZONTAL(offset->cb_h);
+ cfg |= S5P_CIOCBOFF_VERTICAL(offset->cb_v);
+ writel(cfg, dev->regs + S5P_CIOCBOFF);
+
+ cfg = 0;
+ cfg |= S5P_CIOCROFF_HORIZONTAL(offset->cr_h);
+ cfg |= S5P_CIOCROFF_VERTICAL(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_ENABLE;
+ else
+ cfg &= ~S5P_CIREAL_ISIZE_AUTOLOAD_ENABLE;
+ 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_PREHORRATIO(sc->pre_hratio);
+ cfg |= S5P_CISCPRERATIO_PREVERRATIO(sc->pre_vratio);
+
+ writel(cfg, dev->regs + S5P_CISCPRERATIO);
+
+ cfg = 0;
+ cfg |= S5P_CISCPREDST_PREDSTWIDTH(sc->pre_dst_width);
+ cfg |= S5P_CISCPREDST_PREDSTHEIGHT(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;
+
+ if (ctx->flags & S5P_FIMC_COLOR_RANGE_NARROW)
+ cfg = (S5P_CISCCTRL_CSCR2Y_NARROW|S5P_CISCCTRL_CSCY2R_NARROW);
+ else
+ 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&SCAN_MODE_INTERLACED)
+ cfg |= S5P_CISCCTRL_INTERLACE;
+ else
+ cfg |= S5P_CISCCTRL_PROGRESSIVE;
+ }
+
+ dbg("main_hratio= 0x%X main_vratio= 0x%X",
+ sc->main_hratio, sc->main_vratio);
+
+ cfg |= S5P_CISCCTRL_MAINHORRATIO(sc->main_hratio);
+ cfg |= S5P_CISCCTRL_MAINVERRATIO(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 = readl(dev->regs + S5P_CIIMGCPT);
+
+ if (FIMC_DMA == ctx->out_path) {
+ /* one shot mode */
+ cfg |= S5P_CIIMGCPT_CPT_FREN_ENABLE | S5P_CIIMGCPT_IMGCPTEN
+ | S5P_CIIMGCPT_CPT_FRMOD_EN;
+ } else {
+ /* freerun */
+ cfg &= ~(S5P_CIIMGCPT_CPT_FREN_ENABLE |
+ S5P_CIIMGCPT_CPT_FRMOD_EN);
+ cfg |= S5P_CIIMGCPT_IMGCPTEN;
+ }
+
+ if (ctx->scaler.enabled)
+ cfg |= S5P_CIIMGCPT_IMGCPTEN_SC;
+
+ writel(cfg, 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_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_ENABLE;
+
+ cfg_o |= S5P_ORGISIZE_HORIZONTAL(frame->f_width);
+ cfg_o |= S5P_ORGISIZE_VERTICAL(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;
+
+ /* offsets */
+ cfg |= S5P_CIIYOFF_HORIZONTAL(offset->y_h);
+ cfg |= S5P_CIIYOFF_VERTICAL(offset->y_v);
+ writel(cfg, dev->regs + S5P_CIIYOFF);
+
+ cfg = 0;
+ cfg |= S5P_CIICBOFF_HORIZONTAL(offset->cb_h);
+ cfg |= S5P_CIICBOFF_VERTICAL(offset->cb_v);
+ writel(cfg, dev->regs + S5P_CIICBOFF);
+
+ cfg = 0;
+ cfg |= S5P_CIICROFF_HORIZONTAL(offset->cr_h);
+ cfg |= S5P_CIICROFF_VERTICAL(offset->cr_v);
+ writel(cfg, dev->regs + S5P_CIICROFF);
+
+ /* original & 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);
+
+ /* input dma set 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_SUCCESSIVE_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_1PLANE;
+ } 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);
+
+ /* in/out DMA linear/tiled mode */
+ cfg = readl(dev->regs + S5P_CIDMAPARAM);
+ cfg &= ~(S5P_CIDMAPARAM_R_MODE_64X32 | S5P_CIDMAPARAM_W_MODE_64X32);
+
+ if (tiled_fmt(ctx->s_frame.fmt))
+ cfg |= S5P_CIDMAPARAM_R_MODE_64X32;
+
+ if (tiled_fmt(ctx->d_frame.fmt))
+ cfg |= S5P_CIDMAPARAM_W_MODE_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_DISABLE;
+ 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_DISABLE;
+ writel(cfg, dev->regs + S5P_CIREAL_ISIZE);
+}
+
+void fimc_hw_set_output_addr(struct fimc_dev *dev, struct fimc_addr *paddr)
+{
+ int i = 0;
+ /* each of the four output register sets points to the same buffer */
+ for (i = 0; i < S5P_FIMC_MAX_FRAMES; 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 */
--
1.7.0.4
--
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