if VIDEO_EXYNOS
source "drivers/media/video/exynos/tv/Kconfig"
source "drivers/media/video/exynos/mdev/Kconfig"
+ source "drivers/media/video/exynos/gsc/Kconfig"
endif
config MEDIA_EXYNOS
obj-$(CONFIG_EXYNOS_MEDIA_DEVICE) += mdev/
obj-$(CONFIG_VIDEO_EXYNOS_TV) += tv/
+obj-$(CONFIG_VIDEO_EXYNOS_GSCALER) += gsc/
+
+EXTRA_CLAGS += -Idrivers/media/video
--- /dev/null
+config VIDEO_EXYNOS_GSCALER
+ bool "Exynos G-Scaler driver"
+ depends on VIDEO_EXYNOS
+ select MEDIA_EXYNOS
+ select V4L2_MEM2MEM_DEV
+ default n
+ help
+ This is a v4l2 driver for exynos G-Scaler device.
+
+if VIDEO_EXYNOS_GSCALER && VIDEOBUF2_CMA_PHYS
+comment "Reserved memory configurations"
+config VIDEO_SAMSUNG_MEMSIZE_GSC0
+ int "Memory size in kbytes for GSC0"
+ default "5120"
+
+config VIDEO_SAMSUNG_MEMSIZE_GSC1
+ int "Memory size in kbytes for GSC1"
+ default "5120"
+
+config VIDEO_SAMSUNG_MEMSIZE_GSC2
+ int "Memory size in kbytes for GSC2"
+ default "5120"
+
+config VIDEO_SAMSUNG_MEMSIZE_GSC3
+ int "Memory size in kbytes for GSC3"
+ default "5120"
+endif
--- /dev/null
+gsc-objs := gsc-core.o gsc-m2m.o gsc-output.o gsc-capture.o gsc-regs.o
+obj-$(CONFIG_VIDEO_EXYNOS_GSCALER) += gsc.o
--- /dev/null
+/* linux/drivers/media/video/exynos/gsc/gsc-capture.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Samsung EXYNOS5 SoC series G-scaler driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, 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/workqueue.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/string.h>
+#include <linux/i2c.h>
+#include <media/v4l2-ioctl.h>
+#include <media/exynos_gscaler.h>
+
+#include "gsc-core.h"
+
+static int gsc_capture_queue_setup(struct vb2_queue *vq,
+ const struct v4l2_format *fmt, unsigned int *num_buffers,
+ unsigned int *num_planes, unsigned int sizes[],
+ void *allocators[])
+{
+ struct gsc_ctx *ctx = vq->drv_priv;
+ struct gsc_fmt *ffmt = ctx->d_frame.fmt;
+ int i;
+
+ if (!ffmt)
+ return -EINVAL;
+
+ *num_planes = ffmt->num_planes;
+
+ for (i = 0; i < ffmt->num_planes; i++) {
+ sizes[i] = get_plane_size(&ctx->d_frame, i);
+ allocators[i] = ctx->gsc_dev->alloc_ctx;
+ }
+
+ return 0;
+}
+static int gsc_capture_buf_prepare(struct vb2_buffer *vb)
+{
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct gsc_ctx *ctx = vq->drv_priv;
+ struct gsc_frame *frame = &ctx->d_frame;
+ int i;
+
+ if (frame->fmt == NULL)
+ return -EINVAL;
+
+ for (i = 0; i < frame->fmt->num_planes; i++) {
+ unsigned long size = frame->payload[i];
+
+ if (vb2_plane_size(vb, i) < size) {
+ v4l2_err(ctx->gsc_dev->cap.vfd,
+ "User buffer too small (%ld < %ld)\n",
+ vb2_plane_size(vb, i), size);
+ return -EINVAL;
+ }
+ vb2_set_plane_payload(vb, i, size);
+ }
+
+ return 0;
+}
+
+int gsc_cap_pipeline_s_stream(struct gsc_dev *gsc, int on)
+{
+ struct gsc_pipeline *p = &gsc->pipeline;
+ int ret = 0;
+
+ if ((!p->sensor || !p->flite) && (!p->disp))
+ return -ENODEV;
+
+ if (on) {
+ ret = v4l2_subdev_call(p->sd_gsc, video, s_stream, 1);
+ if (ret < 0 && ret != -ENOIOCTLCMD)
+ return ret;
+ if (p->disp) {
+ ret = v4l2_subdev_call(p->disp, video, s_stream, 1);
+ if (ret < 0 && ret != -ENOIOCTLCMD)
+ return ret;
+ } else {
+ ret = v4l2_subdev_call(p->flite, video, s_stream, 1);
+ if (ret < 0 && ret != -ENOIOCTLCMD)
+ return ret;
+ ret = v4l2_subdev_call(p->csis, video, s_stream, 1);
+ if (ret < 0 && ret != -ENOIOCTLCMD)
+ return ret;
+ ret = v4l2_subdev_call(p->sensor, video, s_stream, 1);
+ }
+ } else {
+ ret = v4l2_subdev_call(p->sd_gsc, video, s_stream, 0);
+ if (ret < 0 && ret != -ENOIOCTLCMD)
+ return ret;
+ if (p->disp) {
+ ret = v4l2_subdev_call(p->disp, video, s_stream, 0);
+ if (ret < 0 && ret != -ENOIOCTLCMD)
+ return ret;
+ } else {
+ ret = v4l2_subdev_call(p->sensor, video, s_stream, 0);
+ if (ret < 0 && ret != -ENOIOCTLCMD)
+ return ret;
+ ret = v4l2_subdev_call(p->csis, video, s_stream, 0);
+ if (ret < 0 && ret != -ENOIOCTLCMD)
+ return ret;
+ ret = v4l2_subdev_call(p->flite, video, s_stream, 0);
+ }
+ }
+
+ return ret == -ENOIOCTLCMD ? 0 : ret;
+}
+
+static int gsc_capture_set_addr(struct vb2_buffer *vb)
+{
+ struct gsc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ int ret;
+
+ ret = gsc_prepare_addr(ctx, vb, &ctx->d_frame, &ctx->d_frame.addr);
+ if (ret) {
+ gsc_err("Prepare G-Scaler address failed\n");
+ return -EINVAL;
+ }
+
+ gsc_hw_set_output_addr(gsc, &ctx->d_frame.addr, vb->v4l2_buf.index);
+
+ return 0;
+}
+
+static void gsc_capture_buf_queue(struct vb2_buffer *vb)
+{
+ struct gsc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ struct gsc_capture_device *cap = &gsc->cap;
+ int min_bufs, ret;
+ unsigned long flags;
+
+ spin_lock_irqsave(&gsc->slock, flags);
+ ret = gsc_capture_set_addr(vb);
+ if (ret)
+ gsc_err("Failed to prepare output addr");
+
+ if (!test_bit(ST_CAPT_SUSPENDED, &gsc->state)) {
+ gsc_info("buf_index : %d", vb->v4l2_buf.index);
+ gsc_hw_set_output_buf_masking(gsc, vb->v4l2_buf.index, 0);
+ }
+
+ min_bufs = cap->reqbufs_cnt > 1 ? 2 : 1;
+
+ if (vb2_is_streaming(&cap->vbq) &&
+ (gsc_hw_get_nr_unmask_bits(gsc) >= min_bufs) &&
+ !test_bit(ST_CAPT_STREAM, &gsc->state)) {
+ if (!test_and_set_bit(ST_CAPT_PIPE_STREAM, &gsc->state)) {
+ spin_unlock_irqrestore(&gsc->slock, flags);
+ gsc_cap_pipeline_s_stream(gsc, 1);
+ return;
+ }
+
+ if (!test_bit(ST_CAPT_STREAM, &gsc->state)) {
+ gsc_info("G-Scaler h/w enable control");
+ gsc_hw_enable_control(gsc, true);
+ set_bit(ST_CAPT_STREAM, &gsc->state);
+ }
+ }
+ spin_unlock_irqrestore(&gsc->slock, flags);
+
+ return;
+}
+
+static int gsc_capture_get_scaler_factor(u32 src, u32 tar, u32 *ratio)
+{
+ u32 sh = 3;
+ tar *= 4;
+ if (tar >= src) {
+ *ratio = 1;
+ return 0;
+ }
+
+ while (--sh) {
+ u32 tmp = 1 << sh;
+ if (src >= tar * tmp)
+ *ratio = sh;
+ }
+ return 0;
+}
+
+static int gsc_capture_scaler_info(struct gsc_ctx *ctx)
+{
+ struct gsc_frame *s_frame = &ctx->s_frame;
+ struct gsc_frame *d_frame = &ctx->d_frame;
+ struct gsc_scaler *sc = &ctx->scaler;
+
+ gsc_capture_get_scaler_factor(s_frame->crop.width, d_frame->crop.width,
+ &sc->pre_hratio);
+ gsc_capture_get_scaler_factor(s_frame->crop.height, d_frame->crop.width,
+ &sc->pre_vratio);
+
+ sc->main_hratio = (s_frame->crop.width << 16) / d_frame->crop.width;
+ sc->main_vratio = (s_frame->crop.height << 16) / d_frame->crop.height;
+
+ gsc_info("src width : %d, src height : %d, dst width : %d,\
+ dst height : %d", s_frame->crop.width, s_frame->crop.height,\
+ d_frame->crop.width, d_frame->crop.height);
+ gsc_info("pre_hratio : 0x%x, pre_vratio : 0x%x, main_hratio : 0x%lx,\
+ main_vratio : 0x%lx", sc->pre_hratio,\
+ sc->pre_vratio, sc->main_hratio, sc->main_vratio);
+
+ return 0;
+}
+
+static int gsc_capture_subdev_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct gsc_dev *gsc = v4l2_get_subdevdata(sd);
+ struct gsc_capture_device *cap = &gsc->cap;
+ struct gsc_ctx *ctx = cap->ctx;
+
+ gsc_info("");
+
+ gsc_hw_set_frm_done_irq_mask(gsc, false);
+ gsc_hw_set_overflow_irq_mask(gsc, false);
+ gsc_hw_set_one_frm_mode(gsc, false);
+ gsc_hw_set_gsc_irq_enable(gsc, true);
+
+ if (gsc->pipeline.disp)
+ gsc_hw_set_sysreg_writeback(ctx);
+ else
+ gsc_hw_set_sysreg_camif(true);
+
+ gsc_hw_set_input_path(ctx);
+ gsc_hw_set_in_size(ctx);
+ gsc_hw_set_in_image_format(ctx);
+ gsc_hw_set_output_path(ctx);
+ gsc_hw_set_out_size(ctx);
+ gsc_hw_set_out_image_format(ctx);
+ gsc_hw_set_global_alpha(ctx);
+
+ gsc_capture_scaler_info(ctx);
+ gsc_hw_set_prescaler(ctx);
+ gsc_hw_set_mainscaler(ctx);
+
+ set_bit(ST_CAPT_PEND, &gsc->state);
+
+ gsc_hw_enable_control(gsc, true);
+ set_bit(ST_CAPT_STREAM, &gsc->state);
+
+ return 0;
+
+}
+
+static int gsc_capture_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct gsc_ctx *ctx = q->drv_priv;
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ struct gsc_capture_device *cap = &gsc->cap;
+ int min_bufs;
+
+ gsc_hw_set_sw_reset(gsc);
+ gsc_wait_reset(gsc);
+ gsc_hw_set_output_buf_mask_all(gsc);
+
+ min_bufs = cap->reqbufs_cnt > 1 ? 2 : 1;
+ if ((gsc_hw_get_nr_unmask_bits(gsc) >= min_bufs) &&
+ !test_bit(ST_CAPT_STREAM, &gsc->state)) {
+ if (!test_and_set_bit(ST_CAPT_PIPE_STREAM, &gsc->state)) {
+ gsc_info("");
+ gsc_cap_pipeline_s_stream(gsc, 1);
+ }
+ }
+
+ return 0;
+}
+
+static int gsc_capture_state_cleanup(struct gsc_dev *gsc)
+{
+ unsigned long flags;
+ bool streaming;
+
+ spin_lock_irqsave(&gsc->slock, flags);
+ streaming = gsc->state & (1 << ST_CAPT_PIPE_STREAM);
+
+ gsc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_STREAM |
+ 1 << ST_CAPT_PIPE_STREAM | 1 << ST_CAPT_PEND);
+
+ set_bit(ST_CAPT_SUSPENDED, &gsc->state);
+ spin_unlock_irqrestore(&gsc->slock, flags);
+
+ if (streaming)
+ return gsc_cap_pipeline_s_stream(gsc, 0);
+ else
+ return 0;
+}
+
+static int gsc_cap_stop_capture(struct gsc_dev *gsc)
+{
+ int ret;
+ if (!gsc_cap_active(gsc)) {
+ gsc_warn("already stopped\n");
+ return 0;
+ }
+ gsc_info("G-Scaler h/w disable control");
+ gsc_hw_enable_control(gsc, false);
+ clear_bit(ST_CAPT_STREAM, &gsc->state);
+ ret = gsc_wait_operating(gsc);
+ if (ret) {
+ gsc_err("GSCALER_OP_STATUS is operating\n");
+ return ret;
+ }
+
+ return gsc_capture_state_cleanup(gsc);
+}
+
+static int gsc_capture_stop_streaming(struct vb2_queue *q)
+{
+ struct gsc_ctx *ctx = q->drv_priv;
+ struct gsc_dev *gsc = ctx->gsc_dev;
+
+ if (!gsc_cap_active(gsc))
+ return -EINVAL;
+
+ return gsc_cap_stop_capture(gsc);
+}
+
+static struct vb2_ops gsc_capture_qops = {
+ .queue_setup = gsc_capture_queue_setup,
+ .buf_prepare = gsc_capture_buf_prepare,
+ .buf_queue = gsc_capture_buf_queue,
+ .wait_prepare = gsc_unlock,
+ .wait_finish = gsc_lock,
+ .start_streaming = gsc_capture_start_streaming,
+ .stop_streaming = gsc_capture_stop_streaming,
+};
+
+/*
+ * The video node ioctl operations
+ */
+static int gsc_vidioc_querycap_capture(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ strncpy(cap->driver, gsc->pdev->name, sizeof(cap->driver) - 1);
+ strncpy(cap->card, gsc->pdev->name, sizeof(cap->card) - 1);
+ cap->bus_info[0] = 0;
+ cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE;
+
+ return 0;
+}
+
+static int gsc_capture_enum_fmt_mplane(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ return gsc_enum_fmt_mplane(f);
+}
+
+static int gsc_capture_try_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ return -EINVAL;
+
+ return gsc_try_fmt_mplane(gsc->cap.ctx, f);
+}
+
+static int gsc_capture_s_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_ctx *ctx = gsc->cap.ctx;
+ struct gsc_frame *frame;
+ struct v4l2_pix_format_mplane *pix;
+ int i, ret = 0;
+
+ ret = gsc_capture_try_fmt_mplane(file, fh, f);
+ if (ret)
+ return ret;
+
+ if (vb2_is_streaming(&gsc->cap.vbq)) {
+ gsc_err("queue (%d) busy", f->type);
+ return -EBUSY;
+ }
+
+ frame = &ctx->d_frame;
+
+ pix = &f->fmt.pix_mp;
+ frame->fmt = find_fmt(&pix->pixelformat, NULL, 0);
+ if (!frame->fmt)
+ return -EINVAL;
+
+ for (i = 0; i < frame->fmt->nr_comp; i++)
+ frame->payload[i] =
+ pix->plane_fmt[i].bytesperline * pix->height;
+
+ gsc_set_frame_size(frame, pix->width, pix->height);
+
+ gsc_info("f_w: %d, f_h: %d", frame->f_width, frame->f_height);
+
+ return 0;
+}
+
+static int gsc_capture_g_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_ctx *ctx = gsc->cap.ctx;
+
+ if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ return -EINVAL;
+
+ return gsc_g_fmt_mplane(ctx, f);
+}
+
+static int gsc_capture_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *reqbufs)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_capture_device *cap = &gsc->cap;
+ struct gsc_frame *frame;
+ int ret;
+
+ frame = ctx_get_frame(cap->ctx, reqbufs->type);
+
+ ret = vb2_reqbufs(&cap->vbq, reqbufs);
+ if (!ret)
+ cap->reqbufs_cnt = reqbufs->count;
+
+ return ret;
+
+}
+
+static int gsc_capture_querybuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_capture_device *cap = &gsc->cap;
+
+ return vb2_querybuf(&cap->vbq, buf);
+}
+
+static int gsc_capture_qbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_capture_device *cap = &gsc->cap;
+
+ return vb2_qbuf(&cap->vbq, buf);
+}
+
+static int gsc_capture_dqbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ return vb2_dqbuf(&gsc->cap.vbq, buf,
+ file->f_flags & O_NONBLOCK);
+}
+
+static int gsc_capture_cropcap(struct file *file, void *fh,
+ struct v4l2_cropcap *cr)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_ctx *ctx = gsc->cap.ctx;
+
+ if (cr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ return -EINVAL;
+
+ cr->bounds.left = 0;
+ cr->bounds.top = 0;
+ cr->bounds.width = ctx->d_frame.f_width;
+ cr->bounds.height = ctx->d_frame.f_height;
+ cr->defrect = cr->bounds;
+
+ return 0;
+}
+
+static int gsc_capture_enum_input(struct file *file, void *priv,
+ struct v4l2_input *i)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct exynos_platform_gscaler *pdata = gsc->pdata;
+ struct exynos_isp_info *isp_info;
+
+ if (i->index >= MAX_CAMIF_CLIENTS)
+ return -EINVAL;
+
+ isp_info = pdata->isp_info[i->index];
+ if (isp_info == NULL)
+ return -EINVAL;
+
+ i->type = V4L2_INPUT_TYPE_CAMERA;
+
+ strncpy(i->name, isp_info->board_info->type, 32);
+
+ return 0;
+}
+
+static int gsc_capture_s_input(struct file *file, void *priv, unsigned int i)
+{
+ return i == 0 ? 0 : -EINVAL;
+}
+
+static int gsc_capture_g_input(struct file *file, void *priv, unsigned int *i)
+{
+ *i = 0;
+ return 0;
+}
+
+int gsc_capture_ctrls_create(struct gsc_dev *gsc)
+{
+ int ret;
+
+ if (WARN_ON(gsc->cap.ctx == NULL))
+ return -ENXIO;
+ if (gsc->cap.ctx->ctrls_rdy)
+ return 0;
+ ret = gsc_ctrls_create(gsc->cap.ctx);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+void gsc_cap_pipeline_prepare(struct gsc_dev *gsc, struct media_entity *me)
+{
+ struct media_entity_graph graph;
+ struct v4l2_subdev *sd;
+
+ media_entity_graph_walk_start(&graph, me);
+
+ while ((me = media_entity_graph_walk_next(&graph))) {
+ gsc_info("me->name : %s", me->name);
+ if (media_entity_type(me) != MEDIA_ENT_T_V4L2_SUBDEV)
+ continue;
+ sd = media_entity_to_v4l2_subdev(me);
+
+ switch (sd->grp_id) {
+ case GSC_CAP_GRP_ID:
+ gsc->pipeline.sd_gsc = sd;
+ break;
+ case FLITE_GRP_ID:
+ gsc->pipeline.flite = sd;
+ break;
+ case SENSOR_GRP_ID:
+ gsc->pipeline.sensor = sd;
+ break;
+ case CSIS_GRP_ID:
+ gsc->pipeline.csis = sd;
+ break;
+ case FIMD_GRP_ID:
+ gsc->pipeline.disp = sd;
+ break;
+ default:
+ gsc_err("Unsupported group id");
+ break;
+ }
+ }
+
+ gsc_info("gsc->pipeline.sd_gsc : 0x%p", gsc->pipeline.sd_gsc);
+ gsc_info("gsc->pipeline.flite : 0x%p", gsc->pipeline.flite);
+ gsc_info("gsc->pipeline.sensor : 0x%p", gsc->pipeline.sensor);
+ gsc_info("gsc->pipeline.csis : 0x%p", gsc->pipeline.csis);
+ gsc_info("gsc->pipeline.disp : 0x%p", gsc->pipeline.disp);
+}
+
+static int __subdev_set_power(struct v4l2_subdev *sd, int on)
+{
+ int *use_count;
+ int ret;
+
+ if (sd == NULL)
+ return -ENXIO;
+
+ use_count = &sd->entity.use_count;
+ if (on && (*use_count)++ > 0)
+ return 0;
+ else if (!on && (*use_count == 0 || --(*use_count) > 0))
+ return 0;
+ ret = v4l2_subdev_call(sd, core, s_power, on);
+
+ return ret != -ENOIOCTLCMD ? ret : 0;
+}
+
+int gsc_cap_pipeline_s_power(struct gsc_dev *gsc, int state)
+{
+ int ret = 0;
+
+ if (!gsc->pipeline.sensor || !gsc->pipeline.flite)
+ return -ENXIO;
+
+ if (state) {
+ ret = __subdev_set_power(gsc->pipeline.flite, 1);
+ if (ret && ret != -ENXIO)
+ return ret;
+ ret = __subdev_set_power(gsc->pipeline.csis, 1);
+ if (ret && ret != -ENXIO)
+ return ret;
+ ret = __subdev_set_power(gsc->pipeline.sensor, 1);
+ } else {
+ ret = __subdev_set_power(gsc->pipeline.flite, 0);
+ if (ret && ret != -ENXIO)
+ return ret;
+ ret = __subdev_set_power(gsc->pipeline.sensor, 0);
+ if (ret && ret != -ENXIO)
+ return ret;
+ ret = __subdev_set_power(gsc->pipeline.csis, 0);
+ }
+ return ret == -ENXIO ? 0 : ret;
+}
+
+static void gsc_set_cam_clock(struct gsc_dev *gsc, bool on)
+{
+ struct v4l2_subdev *sd = NULL;
+ struct gsc_sensor_info *s_info = NULL;
+
+ if (gsc->pipeline.sensor) {
+ sd = gsc->pipeline.sensor;
+ s_info = v4l2_get_subdev_hostdata(sd);
+ }
+ if (on) {
+ clk_enable(gsc->clock);
+ if (gsc->pipeline.sensor)
+ clk_enable(s_info->camclk);
+ } else {
+ clk_disable(gsc->clock);
+ if (gsc->pipeline.sensor)
+ clk_disable(s_info->camclk);
+ }
+}
+
+static int __gsc_cap_pipeline_initialize(struct gsc_dev *gsc,
+ struct media_entity *me, bool prep)
+{
+ int ret = 0;
+
+ if (prep)
+ gsc_cap_pipeline_prepare(gsc, me);
+ if ((!gsc->pipeline.sensor || !gsc->pipeline.flite) &&
+ !gsc->pipeline.disp)
+ return -EINVAL;
+
+ gsc_set_cam_clock(gsc, true);
+
+ if (gsc->pipeline.sensor && gsc->pipeline.flite)
+ ret = gsc_cap_pipeline_s_power(gsc, 1);
+
+ return ret;
+}
+
+int gsc_cap_pipeline_initialize(struct gsc_dev *gsc, struct media_entity *me,
+ bool prep)
+{
+ int ret;
+
+ mutex_lock(&me->parent->graph_mutex);
+ ret = __gsc_cap_pipeline_initialize(gsc, me, prep);
+ mutex_unlock(&me->parent->graph_mutex);
+
+ return ret;
+}
+
+static int gsc_capture_open(struct file *file)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ int ret = v4l2_fh_open(file);
+
+ if (ret)
+ return ret;
+
+ if (gsc_m2m_opened(gsc) || gsc_out_opened(gsc) || gsc_cap_opened(gsc)) {
+ v4l2_fh_release(file);
+ return -EBUSY;
+ }
+
+ set_bit(ST_CAPT_OPEN, &gsc->state);
+ pm_runtime_get_sync(&gsc->pdev->dev);
+
+ if (++gsc->cap.refcnt == 1) {
+ ret = gsc_cap_pipeline_initialize(gsc, &gsc->cap.vfd->entity, true);
+ if (ret < 0) {
+ gsc_err("gsc pipeline initialization failed\n");
+ goto err;
+ }
+
+ ret = gsc_capture_ctrls_create(gsc);
+ if (ret) {
+ gsc_err("failed to create controls\n");
+ goto err;
+ }
+ }
+
+ gsc_info("pid: %d, state: 0x%lx", task_pid_nr(current), gsc->state);
+
+ return 0;
+
+err:
+ pm_runtime_put_sync(&gsc->pdev->dev);
+ v4l2_fh_release(file);
+ clear_bit(ST_CAPT_OPEN, &gsc->state);
+ return ret;
+}
+
+int __gsc_cap_pipeline_shutdown(struct gsc_dev *gsc)
+{
+ int ret = 0;
+
+ if (gsc->pipeline.sensor && gsc->pipeline.flite)
+ ret = gsc_cap_pipeline_s_power(gsc, 0);
+
+ if (ret && ret != -ENXIO)
+ gsc_set_cam_clock(gsc, false);
+
+ return ret == -ENXIO ? 0 : ret;
+}
+
+int gsc_cap_pipeline_shutdown(struct gsc_dev *gsc)
+{
+ struct media_entity *me = &gsc->cap.vfd->entity;
+ int ret;
+
+ mutex_lock(&me->parent->graph_mutex);
+ ret = __gsc_cap_pipeline_shutdown(gsc);
+ mutex_unlock(&me->parent->graph_mutex);
+
+ return ret;
+}
+static int gsc_capture_close(struct file *file)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ gsc_info("pid: %d, state: 0x%lx", task_pid_nr(current), gsc->state);
+
+ if (--gsc->cap.refcnt == 0) {
+ clear_bit(ST_CAPT_OPEN, &gsc->state);
+ gsc_info("G-Scaler h/w disable control");
+ gsc_hw_enable_control(gsc, false);
+ clear_bit(ST_CAPT_STREAM, &gsc->state);
+ gsc_cap_pipeline_shutdown(gsc);
+ clear_bit(ST_CAPT_SUSPENDED, &gsc->state);
+ }
+
+ pm_runtime_put(&gsc->pdev->dev);
+
+ if (gsc->cap.refcnt == 0) {
+ vb2_queue_release(&gsc->cap.vbq);
+ gsc_ctrls_delete(gsc->cap.ctx);
+ }
+
+ return v4l2_fh_release(file);
+}
+
+static unsigned int gsc_capture_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ return vb2_poll(&gsc->cap.vbq, file, wait);
+}
+
+static int gsc_capture_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ return vb2_mmap(&gsc->cap.vbq, vma);
+}
+
+static int gsc_cap_link_validate(struct gsc_dev *gsc)
+{
+ struct gsc_capture_device *cap = &gsc->cap;
+ struct v4l2_subdev_format sink_fmt, src_fmt;
+ struct v4l2_subdev *sd;
+ struct media_pad *pad;
+ int ret;
+
+ /* Get the source pad connected with gsc-video */
+ pad = media_entity_remote_source(&cap->vd_pad);
+ if (pad == NULL)
+ return -EPIPE;
+ /* Get the subdev of source pad */
+ sd = media_entity_to_v4l2_subdev(pad->entity);
+
+ while (1) {
+ /* Find sink pad of the subdev*/
+ pad = &sd->entity.pads[0];
+ if (!(pad->flags & MEDIA_PAD_FL_SINK))
+ break;
+ if (sd == cap->sd_cap) {
+ struct gsc_frame *gf = &cap->ctx->s_frame;
+ sink_fmt.format.width = gf->crop.width;
+ sink_fmt.format.height = gf->crop.height;
+ sink_fmt.format.code = gf->fmt ? gf->fmt->mbus_code : 0;
+ } else {
+ sink_fmt.pad = pad->index;
+ sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt);
+ if (ret < 0 && ret != -ENOIOCTLCMD) {
+ gsc_err("failed %s subdev get_fmt", sd->name);
+ return -EPIPE;
+ }
+ }
+ gsc_info("sink sd name : %s", sd->name);
+ /* Get the source pad connected with remote sink pad */
+ pad = media_entity_remote_source(pad);
+ if (pad == NULL ||
+ media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ break;
+
+ /* Get the subdev of source pad */
+ sd = media_entity_to_v4l2_subdev(pad->entity);
+ gsc_info("source sd name : %s", sd->name);
+
+ src_fmt.pad = pad->index;
+ src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt);
+ if (ret < 0 && ret != -ENOIOCTLCMD) {
+ gsc_err("failed %s subdev get_fmt", sd->name);
+ return -EPIPE;
+ }
+
+ gsc_info("src_width : %d, src_height : %d, src_code : %d",
+ src_fmt.format.width, src_fmt.format.height,
+ src_fmt.format.code);
+ gsc_info("sink_width : %d, sink_height : %d, sink_code : %d",
+ sink_fmt.format.width, sink_fmt.format.height,
+ sink_fmt.format.code);
+
+ if (src_fmt.format.width != sink_fmt.format.width ||
+ src_fmt.format.height != sink_fmt.format.height ||
+ src_fmt.format.code != sink_fmt.format.code) {
+ gsc_err("mismatch sink and source");
+ return -EPIPE;
+ }
+ }
+
+ return 0;
+}
+
+static int gsc_capture_streamon(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_pipeline *p = &gsc->pipeline;
+ int ret;
+
+ if (gsc_cap_active(gsc))
+ return -EBUSY;
+
+ if (p->disp) {
+ media_entity_pipeline_start(&p->disp->entity, p->pipe);
+ } else if (p->sensor) {
+ media_entity_pipeline_start(&p->sensor->entity, p->pipe);
+ } else {
+ gsc_err("Error pipeline");
+ return -EPIPE;
+ }
+
+ ret = gsc_cap_link_validate(gsc);
+ if (ret)
+ return ret;
+
+ return vb2_streamon(&gsc->cap.vbq, type);
+}
+
+static int gsc_capture_streamoff(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct v4l2_subdev *sd = gsc->pipeline.sensor;
+ int ret;
+
+ ret = vb2_streamoff(&gsc->cap.vbq, type);
+ if (ret == 0)
+ media_entity_pipeline_stop(&sd->entity);
+ return ret;
+}
+
+static struct v4l2_subdev *gsc_cap_remote_subdev(struct gsc_dev *gsc, u32 *pad)
+{
+ struct media_pad *remote;
+
+ remote = media_entity_remote_source(&gsc->cap.vd_pad);
+
+ if (remote == NULL ||
+ media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ return NULL;
+
+ if (pad)
+ *pad = remote->index;
+
+ return media_entity_to_v4l2_subdev(remote->entity);
+}
+
+static int gsc_capture_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct v4l2_subdev_format format;
+ struct v4l2_subdev *subdev;
+ u32 pad;
+ int ret;
+
+ subdev = gsc_cap_remote_subdev(gsc, &pad);
+ if (subdev == NULL)
+ return -EINVAL;
+
+ /* Try the get crop operation first and fallback to get format if not
+ * implemented.
+ */
+ ret = v4l2_subdev_call(subdev, video, g_crop, crop);
+ if (ret != -ENOIOCTLCMD)
+ return ret;
+
+ format.pad = pad;
+ format.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &format);
+ if (ret < 0)
+ return ret == -ENOIOCTLCMD ? -EINVAL : ret;
+
+ crop->c.left = 0;
+ crop->c.top = 0;
+ crop->c.width = format.format.width;
+ crop->c.height = format.format.height;
+
+ return 0;
+}
+
+static int gsc_capture_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct v4l2_subdev *subdev;
+ int ret;
+
+ subdev = gsc_cap_remote_subdev(gsc, NULL);
+ if (subdev == NULL)
+ return -EINVAL;
+
+ ret = v4l2_subdev_call(subdev, video, s_crop, crop);
+
+ return ret == -ENOIOCTLCMD ? -EINVAL : ret;
+}
+
+static const struct v4l2_ioctl_ops gsc_capture_ioctl_ops = {
+ .vidioc_querycap = gsc_vidioc_querycap_capture,
+
+ .vidioc_enum_fmt_vid_cap_mplane = gsc_capture_enum_fmt_mplane,
+ .vidioc_try_fmt_vid_cap_mplane = gsc_capture_try_fmt_mplane,
+ .vidioc_s_fmt_vid_cap_mplane = gsc_capture_s_fmt_mplane,
+ .vidioc_g_fmt_vid_cap_mplane = gsc_capture_g_fmt_mplane,
+
+ .vidioc_reqbufs = gsc_capture_reqbufs,
+ .vidioc_querybuf = gsc_capture_querybuf,
+
+ .vidioc_qbuf = gsc_capture_qbuf,
+ .vidioc_dqbuf = gsc_capture_dqbuf,
+
+ .vidioc_streamon = gsc_capture_streamon,
+ .vidioc_streamoff = gsc_capture_streamoff,
+
+ .vidioc_g_crop = gsc_capture_g_crop,
+ .vidioc_s_crop = gsc_capture_s_crop,
+ .vidioc_cropcap = gsc_capture_cropcap,
+
+ .vidioc_enum_input = gsc_capture_enum_input,
+ .vidioc_s_input = gsc_capture_s_input,
+ .vidioc_g_input = gsc_capture_g_input,
+};
+
+static const struct v4l2_file_operations gsc_capture_fops = {
+ .owner = THIS_MODULE,
+ .open = gsc_capture_open,
+ .release = gsc_capture_close,
+ .poll = gsc_capture_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = gsc_capture_mmap,
+};
+
+/*
+ * __gsc_cap_get_format - helper function for getting gscaler format
+ * @res : pointer to resizer private structure
+ * @pad : pad number
+ * @fh : V4L2 subdev file handle
+ * @which : wanted subdev format
+ * return zero
+ */
+static struct v4l2_mbus_framefmt *__gsc_cap_get_format(struct gsc_dev *gsc,
+ struct v4l2_subdev_fh *fh, unsigned int pad,
+ enum v4l2_subdev_format_whence which)
+{
+ if (which == V4L2_SUBDEV_FORMAT_TRY)
+ return v4l2_subdev_get_try_format(fh, pad);
+ else
+ return &gsc->cap.mbus_fmt[pad];
+}
+
+static void gsc_cap_check_limit_size(struct gsc_dev *gsc, unsigned int pad,
+ struct v4l2_mbus_framefmt *fmt)
+{
+ struct gsc_variant *variant = gsc->variant;
+ struct gsc_ctx *ctx = gsc->cap.ctx;
+ u32 min_w, min_h, max_w, max_h;
+
+ switch (pad) {
+ case GSC_PAD_SINK:
+ if (gsc_cap_opened(gsc) &&
+ (ctx->gsc_ctrls.rotate->val == 90 ||
+ ctx->gsc_ctrls.rotate->val == 270)) {
+ min_w = variant->pix_min->real_w;
+ min_h = variant->pix_min->real_h;
+ max_w = variant->pix_max->real_rot_en_w;
+ max_h = variant->pix_max->real_rot_en_h;
+ } else {
+ min_w = variant->pix_min->real_w;
+ min_h = variant->pix_min->real_h;
+ max_w = variant->pix_max->real_rot_dis_w;
+ max_h = variant->pix_max->real_rot_dis_h;
+ }
+ break;
+
+ case GSC_PAD_SOURCE:
+ min_w = variant->pix_min->target_rot_dis_w;
+ min_h = variant->pix_min->target_rot_dis_h;
+ max_w = variant->pix_max->target_rot_dis_w;
+ max_h = variant->pix_max->target_rot_dis_h;
+ break;
+ }
+
+ fmt->width = clamp_t(u32, fmt->width, min_w, max_w);
+ fmt->height = clamp_t(u32, fmt->height , min_h, max_h);
+}
+
+static void gsc_cap_try_format(struct gsc_dev *gsc,
+ struct v4l2_subdev_fh *fh, unsigned int pad,
+ struct v4l2_mbus_framefmt *fmt,
+ enum v4l2_subdev_format_whence which)
+{
+ struct gsc_fmt *gfmt;
+
+ gfmt = find_fmt(NULL, &fmt->code, 0);
+ WARN_ON(!gfmt);
+
+ if (pad == GSC_PAD_SINK) {
+ struct gsc_ctx *ctx = gsc->cap.ctx;
+ struct gsc_frame *frame = &ctx->s_frame;
+
+ frame->fmt = gfmt;
+ }
+
+ gsc_cap_check_limit_size(gsc, pad, fmt);
+
+ fmt->colorspace = V4L2_COLORSPACE_JPEG;
+ fmt->field = V4L2_FIELD_NONE;
+}
+
+static int gsc_capture_subdev_set_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *fmt)
+{
+ struct gsc_dev *gsc = v4l2_get_subdevdata(sd);
+ struct v4l2_mbus_framefmt *mf;
+ struct gsc_ctx *ctx = gsc->cap.ctx;
+ struct gsc_frame *frame;
+
+ mf = __gsc_cap_get_format(gsc, fh, fmt->pad, fmt->which);
+ if (mf == NULL)
+ return -EINVAL;
+
+ gsc_cap_try_format(gsc, fh, fmt->pad, &fmt->format, fmt->which);
+ *mf = fmt->format;
+
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
+ return 0;
+
+ frame = gsc_capture_get_frame(ctx, fmt->pad);
+
+ if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+ frame->crop.left = 0;
+ frame->crop.top = 0;
+ frame->f_width = mf->width;
+ frame->f_height = mf->height;
+ frame->crop.width = mf->width;
+ frame->crop.height = mf->height;
+ }
+ gsc_dbg("offs_h : %d, offs_v : %d, f_width : %d, f_height :%d,\
+ width : %d, height : %d", frame->crop.left,\
+ frame->crop.top, frame->f_width,
+ frame->f_height,\
+ frame->crop.width, frame->crop.height);
+
+ return 0;
+}
+
+static int gsc_capture_subdev_get_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *fmt)
+{
+ struct gsc_dev *gsc = v4l2_get_subdevdata(sd);
+ struct v4l2_mbus_framefmt *mf;
+
+ mf = __gsc_cap_get_format(gsc, fh, fmt->pad, fmt->which);
+ if (mf == NULL)
+ return -EINVAL;
+
+ fmt->format = *mf;
+
+ return 0;
+}
+
+static int __gsc_cap_get_crop(struct gsc_dev *gsc, struct v4l2_subdev_fh *fh,
+ unsigned int pad, enum v4l2_subdev_format_whence which,
+ struct v4l2_rect *crop)
+{
+ struct gsc_ctx *ctx = gsc->cap.ctx;
+ struct gsc_frame *frame = gsc_capture_get_frame(ctx, pad);
+
+ if (which == V4L2_SUBDEV_FORMAT_TRY) {
+ crop = v4l2_subdev_get_try_crop(fh, pad);
+ } else {
+ crop->left = frame->crop.left;
+ crop->top = frame->crop.top;
+ crop->width = frame->crop.width;
+ crop->height = frame->crop.height;
+ }
+
+ return 0;
+}
+
+static void gsc_cap_try_crop(struct gsc_dev *gsc, struct v4l2_rect *crop,
+ u32 pad)
+{
+ struct gsc_variant *variant = gsc->variant;
+ struct gsc_ctx *ctx = gsc->cap.ctx;
+ struct gsc_frame *frame = gsc_capture_get_frame(ctx, pad);
+
+ u32 crop_min_w = variant->pix_min->target_rot_dis_w;
+ u32 crop_min_h = variant->pix_min->target_rot_dis_h;
+ u32 crop_max_w = frame->f_width;
+ u32 crop_max_h = frame->f_height;
+
+ crop->left = clamp_t(u32, crop->left, 0, crop_max_w - crop_min_w);
+ crop->top = clamp_t(u32, crop->top, 0, crop_max_h - crop_min_h);
+ crop->width = clamp_t(u32, crop->width, crop_min_w, crop_max_w);
+ crop->height = clamp_t(u32, crop->height, crop_min_h, crop_max_h);
+}
+
+static int gsc_capture_subdev_set_crop(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_crop *crop)
+{
+ struct gsc_dev *gsc = v4l2_get_subdevdata(sd);
+ struct gsc_ctx *ctx = gsc->cap.ctx;
+ struct gsc_frame *frame = gsc_capture_get_frame(ctx, crop->pad);
+
+ gsc_cap_try_crop(gsc, &crop->rect, crop->pad);
+
+ if (crop->which == V4L2_SUBDEV_FORMAT_ACTIVE)
+ frame->crop = crop->rect;
+
+ return 0;
+}
+
+static int gsc_capture_subdev_get_crop(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_crop *crop)
+{
+ struct gsc_dev *gsc = v4l2_get_subdevdata(sd);
+ struct v4l2_rect gcrop = {0, };
+
+ __gsc_cap_get_crop(gsc, fh, crop->pad, crop->which, &gcrop);
+ crop->rect = gcrop;
+
+ return 0;
+}
+
+static struct v4l2_subdev_pad_ops gsc_cap_subdev_pad_ops = {
+ .get_fmt = gsc_capture_subdev_get_fmt,
+ .set_fmt = gsc_capture_subdev_set_fmt,
+ .get_crop = gsc_capture_subdev_get_crop,
+ .set_crop = gsc_capture_subdev_set_crop,
+};
+
+static struct v4l2_subdev_video_ops gsc_cap_subdev_video_ops = {
+ .s_stream = gsc_capture_subdev_s_stream,
+};
+
+static struct v4l2_subdev_ops gsc_cap_subdev_ops = {
+ .pad = &gsc_cap_subdev_pad_ops,
+ .video = &gsc_cap_subdev_video_ops,
+};
+
+static int gsc_capture_init_formats(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh)
+{
+ struct v4l2_subdev_format format;
+ struct gsc_dev *gsc = v4l2_get_subdevdata(sd);
+ struct gsc_ctx *ctx = gsc->cap.ctx;
+
+ ctx->s_frame.fmt = get_format(2);
+ memset(&format, 0, sizeof(format));
+ format.pad = GSC_PAD_SINK;
+ format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
+ format.format.code = ctx->s_frame.fmt->mbus_code;
+ format.format.width = DEFAULT_GSC_SINK_WIDTH;
+ format.format.height = DEFAULT_GSC_SINK_HEIGHT;
+ gsc_capture_subdev_set_fmt(sd, fh, &format);
+
+ /* G-scaler should not propagate, because it is possible that sink
+ * format different from source format. But the operation of source pad
+ * is not needed.
+ */
+ ctx->d_frame.fmt = get_format(2);
+
+ return 0;
+}
+
+static int gsc_capture_subdev_close(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh)
+{
+ gsc_dbg("");
+
+ return 0;
+}
+
+static int gsc_capture_subdev_registered(struct v4l2_subdev *sd)
+{
+ gsc_dbg("");
+
+ return 0;
+}
+
+static void gsc_capture_subdev_unregistered(struct v4l2_subdev *sd)
+{
+ gsc_dbg("");
+}
+
+static const struct v4l2_subdev_internal_ops gsc_cap_v4l2_internal_ops = {
+ .open = gsc_capture_init_formats,
+ .close = gsc_capture_subdev_close,
+ .registered = gsc_capture_subdev_registered,
+ .unregistered = gsc_capture_subdev_unregistered,
+};
+
+static int gsc_capture_link_setup(struct media_entity *entity,
+ const struct media_pad *local,
+ const struct media_pad *remote, u32 flags)
+{
+ struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
+ struct gsc_dev *gsc = v4l2_get_subdevdata(sd);
+ struct gsc_capture_device *cap = &gsc->cap;
+
+ gsc_info("");
+ switch (local->index | media_entity_type(remote->entity)) {
+ case GSC_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV:
+ if (flags & MEDIA_LNK_FL_ENABLED) {
+ if (cap->input != 0)
+ return -EBUSY;
+ /* Write-Back link enabled */
+ if (!strcmp(remote->entity->name, FIMD_MODULE_NAME)) {
+ gsc->cap.sd_disp =
+ media_entity_to_v4l2_subdev(remote->entity);
+ gsc->cap.sd_disp->grp_id = FIMD_GRP_ID;
+ cap->ctx->in_path = GSC_WRITEBACK;
+ cap->input |= GSC_IN_FIMD_WRITEBACK;
+ } else if (remote->index == FLITE_PAD_SOURCE_PREV) {
+ cap->input |= GSC_IN_FLITE_PREVIEW;
+ } else {
+ cap->input |= GSC_IN_FLITE_CAMCORDING;
+ }
+ } else {
+ cap->input = GSC_IN_NONE;
+ }
+ break;
+ case GSC_PAD_SOURCE | MEDIA_ENT_T_DEVNODE:
+ /* gsc-cap always write to memory */
+ break;
+ }
+
+ return 0;
+}
+
+static const struct media_entity_operations gsc_cap_media_ops = {
+ .link_setup = gsc_capture_link_setup,
+};
+
+static int gsc_capture_create_subdev(struct gsc_dev *gsc)
+{
+ struct v4l2_device *v4l2_dev;
+ struct v4l2_subdev *sd;
+ int ret;
+
+ sd = kzalloc(sizeof(*sd), GFP_KERNEL);
+ if (!sd)
+ return -ENOMEM;
+
+ v4l2_subdev_init(sd, &gsc_cap_subdev_ops);
+ sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE;
+ snprintf(sd->name, sizeof(sd->name), "gsc-cap-subdev.%d", gsc->id);
+
+ gsc->cap.sd_pads[GSC_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
+ gsc->cap.sd_pads[GSC_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_init(&sd->entity, GSC_PADS_NUM,
+ gsc->cap.sd_pads, 0);
+ if (ret)
+ goto err_ent;
+
+ sd->internal_ops = &gsc_cap_v4l2_internal_ops;
+ sd->entity.ops = &gsc_cap_media_ops;
+ sd->grp_id = GSC_CAP_GRP_ID;
+ v4l2_dev = &gsc->mdev[MDEV_CAPTURE]->v4l2_dev;
+
+ ret = v4l2_device_register_subdev(v4l2_dev, sd);
+ if (ret)
+ goto err_sub;
+
+ gsc->mdev[MDEV_CAPTURE]->gsc_cap_sd[gsc->id] = sd;
+ gsc->cap.sd_cap = sd;
+ v4l2_set_subdevdata(sd, gsc);
+ gsc_capture_init_formats(sd, NULL);
+
+ return 0;
+
+err_sub:
+ media_entity_cleanup(&sd->entity);
+err_ent:
+ kfree(sd);
+ return ret;
+}
+
+static int gsc_capture_create_link(struct gsc_dev *gsc)
+{
+ struct media_entity *source, *sink;
+ struct exynos_platform_gscaler *pdata = gsc->pdata;
+ struct exynos_isp_info *isp_info;
+ u32 num_clients = pdata->num_clients;
+ int ret, i;
+ enum cam_port id;
+
+ /* GSC-SUBDEV ------> GSC-VIDEO (Always link enable) */
+ source = &gsc->cap.sd_cap->entity;
+ sink = &gsc->cap.vfd->entity;
+ if (source && sink) {
+ ret = media_entity_create_link(source, GSC_PAD_SOURCE, sink,
+ 0, MEDIA_LNK_FL_IMMUTABLE |
+ MEDIA_LNK_FL_ENABLED);
+ if (ret) {
+ gsc_err("failed link flite to gsc\n");
+ return ret;
+ }
+ }
+ for (i = 0; i < num_clients; i++) {
+ isp_info = pdata->isp_info[i];
+ id = isp_info->cam_port;
+ /* FIMC-LITE ------> GSC-SUBDEV (ITU & MIPI common) */
+ source = &gsc->cap.sd_flite[id]->entity;
+ sink = &gsc->cap.sd_cap->entity;
+ if (source && sink) {
+ if (pdata->cam_preview)
+ ret = media_entity_create_link(source,
+ FLITE_PAD_SOURCE_PREV,
+ sink, GSC_PAD_SINK, 0);
+ if (!ret && pdata->cam_camcording)
+ ret = media_entity_create_link(source,
+ FLITE_PAD_SOURCE_CAMCORD,
+ sink, GSC_PAD_SINK, 0);
+ if (ret) {
+ gsc_err("failed link flite to gsc\n");
+ return ret;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static struct v4l2_subdev *gsc_cap_register_sensor(struct gsc_dev *gsc, int i)
+{
+ struct exynos_md *mdev = gsc->mdev[MDEV_CAPTURE];
+ struct v4l2_subdev *sd = NULL;
+
+ sd = mdev->sensor_sd[i];
+ if (!sd)
+ return NULL;
+
+ v4l2_set_subdev_hostdata(sd, &gsc->cap.sensor[i]);
+
+ return sd;
+}
+
+static int gsc_cap_register_sensor_entities(struct gsc_dev *gsc)
+{
+ struct exynos_platform_gscaler *pdata = gsc->pdata;
+ u32 num_clients = pdata->num_clients;
+ int i;
+
+ for (i = 0; i < num_clients; i++) {
+ gsc->cap.sensor[i].pdata = pdata->isp_info[i];
+ gsc->cap.sensor[i].sd = gsc_cap_register_sensor(gsc, i);
+ if (IS_ERR_OR_NULL(gsc->cap.sensor[i].sd)) {
+ gsc_err("failed to get register sensor");
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int gsc_cap_config_camclk(struct gsc_dev *gsc,
+ struct exynos_isp_info *isp_info, int i)
+{
+ struct gsc_capture_device *gsc_cap = &gsc->cap;
+ struct clk *camclk;
+ struct clk *srclk;
+
+ camclk = clk_get(&gsc->pdev->dev, isp_info->cam_clk_name);
+ if (IS_ERR_OR_NULL(camclk)) {
+ gsc_err("failed to get cam clk");
+ return -ENXIO;
+ }
+ gsc_cap->sensor[i].camclk = camclk;
+
+ srclk = clk_get(&gsc->pdev->dev, isp_info->cam_srclk_name);
+ if (IS_ERR_OR_NULL(srclk)) {
+ clk_put(camclk);
+ gsc_err("failed to get cam source clk\n");
+ return -ENXIO;
+ }
+ clk_set_parent(camclk, srclk);
+ clk_set_rate(camclk, isp_info->clk_frequency);
+ clk_put(srclk);
+
+ return 0;
+}
+
+int gsc_register_capture_device(struct gsc_dev *gsc)
+{
+ struct video_device *vfd;
+ struct gsc_capture_device *gsc_cap;
+ struct gsc_ctx *ctx;
+ struct vb2_queue *q;
+ struct exynos_platform_gscaler *pdata = gsc->pdata;
+ struct exynos_isp_info *isp_info;
+ int ret = -ENOMEM;
+ int i;
+
+ ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ctx->gsc_dev = gsc;
+ ctx->in_path = GSC_CAMERA;
+ ctx->out_path = GSC_DMA;
+ ctx->state = GSC_CTX_CAP;
+
+ vfd = video_device_alloc();
+ if (!vfd) {
+ printk("Failed to allocate video device\n");
+ goto err_ctx_alloc;
+ }
+
+ snprintf(vfd->name, sizeof(vfd->name), "%s.capture",
+ dev_name(&gsc->pdev->dev));
+
+ vfd->fops = &gsc_capture_fops;
+ vfd->ioctl_ops = &gsc_capture_ioctl_ops;
+ vfd->v4l2_dev = &gsc->mdev[MDEV_CAPTURE]->v4l2_dev;
+ vfd->minor = -1;
+ vfd->release = video_device_release;
+ vfd->lock = &gsc->lock;
+ video_set_drvdata(vfd, gsc);
+
+ gsc_cap = &gsc->cap;
+ gsc_cap->vfd = vfd;
+ gsc_cap->refcnt = 0;
+ gsc_cap->active_buf_cnt = 0;
+ gsc_cap->reqbufs_cnt = 0;
+
+ spin_lock_init(&ctx->slock);
+ gsc_cap->ctx = ctx;
+
+ q = &gsc->cap.vbq;
+ memset(q, 0, sizeof(*q));
+ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+ q->io_modes = VB2_MMAP | VB2_USERPTR;
+ q->drv_priv = gsc->cap.ctx;
+ q->ops = &gsc_capture_qops;
+ q->mem_ops = &vb2_dma_contig_memops;
+
+ vb2_queue_init(q);
+
+ /* Get mipi-csis and fimc-lite subdev ptr using mdev */
+ for (i = 0; i < FLITE_MAX_ENTITIES; i++)
+ gsc->cap.sd_flite[i] = gsc->mdev[MDEV_CAPTURE]->flite_sd[i];
+
+ for (i = 0; i < CSIS_MAX_ENTITIES; i++)
+ gsc->cap.sd_csis[i] = gsc->mdev[MDEV_CAPTURE]->csis_sd[i];
+
+ for (i = 0; i < pdata->num_clients; i++) {
+ isp_info = pdata->isp_info[i];
+ ret = gsc_cap_config_camclk(gsc, isp_info, i);
+ if (ret) {
+ gsc_err("failed setup cam clk");
+ goto err_ctx_alloc;
+ }
+ }
+
+ ret = gsc_cap_register_sensor_entities(gsc);
+ if (ret) {
+ gsc_err("failed register sensor entities");
+ goto err_clk;
+ }
+
+ ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
+ if (ret) {
+ gsc_err("failed to register video device");
+ goto err_clk;
+ }
+
+ gsc->cap.vd_pad.flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_init(&vfd->entity, 1, &gsc->cap.vd_pad, 0);
+ if (ret) {
+ gsc_err("failed to initialize entity");
+ goto err_ent;
+ }
+
+ ret = gsc_capture_create_subdev(gsc);
+ if (ret) {
+ gsc_err("failed create subdev");
+ goto err_sd_reg;
+ }
+
+ ret = gsc_capture_create_link(gsc);
+ if (ret) {
+ gsc_err("failed create link");
+ goto err_sd_reg;
+ }
+
+ vfd->ctrl_handler = &ctx->ctrl_handler;
+ gsc_dbg("gsc capture driver registered as /dev/video%d", vfd->num);
+
+ return 0;
+
+err_sd_reg:
+ media_entity_cleanup(&vfd->entity);
+err_ent:
+ video_device_release(vfd);
+err_clk:
+ for (i = 0; i < pdata->num_clients; i++)
+ clk_put(gsc_cap->sensor[i].camclk);
+err_ctx_alloc:
+ kfree(ctx);
+
+ return ret;
+}
+
+static void gsc_capture_destroy_subdev(struct gsc_dev *gsc)
+{
+ struct v4l2_subdev *sd = gsc->cap.sd_cap;
+
+ if (!sd)
+ return;
+ media_entity_cleanup(&sd->entity);
+ v4l2_device_unregister_subdev(sd);
+ kfree(sd);
+ sd = NULL;
+}
+
+void gsc_unregister_capture_device(struct gsc_dev *gsc)
+{
+ struct video_device *vfd = gsc->cap.vfd;
+
+ if (vfd) {
+ media_entity_cleanup(&vfd->entity);
+ /* Can also be called if video device was
+ not registered */
+ video_unregister_device(vfd);
+ }
+ gsc_capture_destroy_subdev(gsc);
+ kfree(gsc->cap.ctx);
+ gsc->cap.ctx = NULL;
+}
--- /dev/null
+/* linux/drivers/media/video/exynos/gsc/gsc-core.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Samsung EXYNOS5 SoC series G-scaler driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, 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/workqueue.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/of.h>
+#include <media/v4l2-ioctl.h>
+
+#include <linux/videodev2.h>
+#include "gsc-core.h"
+#define GSC_CLOCK_GATE_NAME "gscl"
+
+int gsc_dbg = 6;
+module_param(gsc_dbg, int, 0644);
+
+static struct gsc_fmt gsc_formats[] = {
+ {
+ .name = "RGB565",
+ .pixelformat = V4L2_PIX_FMT_RGB565X,
+ .depth = { 16 },
+ .color = GSC_RGB,
+ .num_planes = 1,
+ .nr_comp = 1,
+ }, {
+ .name = "XRGB-8-8-8-8, 32 bpp",
+ .pixelformat = V4L2_PIX_FMT_RGB32,
+ .depth = { 32 },
+ .color = GSC_RGB,
+ .num_planes = 1,
+ .nr_comp = 1,
+ }, {
+ .name = "YUV 4:2:2 packed, YCbYCr",
+ .pixelformat = V4L2_PIX_FMT_YUYV,
+ .depth = { 16 },
+ .color = GSC_YUV422,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CBCR,
+ .num_planes = 1,
+ .nr_comp = 1,
+ .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8,
+ }, {
+ .name = "YUV 4:2:2 packed, CbYCrY",
+ .pixelformat = V4L2_PIX_FMT_UYVY,
+ .depth = { 16 },
+ .color = GSC_YUV422,
+ .yorder = GSC_LSB_C,
+ .corder = GSC_CBCR,
+ .num_planes = 1,
+ .nr_comp = 1,
+ .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8,
+ }, {
+ .name = "YUV 4:2:2 packed, CrYCbY",
+ .pixelformat = V4L2_PIX_FMT_VYUY,
+ .depth = { 16 },
+ .color = GSC_YUV422,
+ .yorder = GSC_LSB_C,
+ .corder = GSC_CRCB,
+ .num_planes = 1,
+ .nr_comp = 1,
+ .mbus_code = V4L2_MBUS_FMT_VYUY8_2X8,
+ }, {
+ .name = "YUV 4:2:2 packed, YCrYCb",
+ .pixelformat = V4L2_PIX_FMT_YVYU,
+ .depth = { 16 },
+ .color = GSC_YUV422,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CRCB,
+ .num_planes = 1,
+ .nr_comp = 1,
+ .mbus_code = V4L2_MBUS_FMT_YVYU8_2X8,
+ }, {
+ .name = "YUV 4:4:4 planar, YCbYCr",
+ .pixelformat = V4L2_PIX_FMT_YUV32,
+ .depth = { 32 },
+ .color = GSC_YUV444,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CBCR,
+ .num_planes = 1,
+ .nr_comp = 1,
+ }, {
+ .name = "YUV 4:2:2 planar, Y/Cb/Cr",
+ .pixelformat = V4L2_PIX_FMT_YUV422P,
+ .depth = { 16 },
+ .color = GSC_YUV422,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CBCR,
+ .num_planes = 1,
+ .nr_comp = 3,
+ }, {
+ .name = "YUV 4:2:2 planar, Y/CbCr",
+ .pixelformat = V4L2_PIX_FMT_NV16,
+ .depth = { 16 },
+ .color = GSC_YUV422,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CBCR,
+ .num_planes = 1,
+ .nr_comp = 2,
+ }, {
+ .name = "YUV 4:2:2 planar, Y/CrCb",
+ .pixelformat = V4L2_PIX_FMT_NV61,
+ .depth = { 16 },
+ .color = GSC_YUV422,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CRCB,
+ .num_planes = 1,
+ .nr_comp = 2,
+ }, {
+ .name = "YUV 4:2:0 planar, YCbCr",
+ .pixelformat = V4L2_PIX_FMT_YUV420,
+ .depth = { 12 },
+ .color = GSC_YUV420,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CBCR,
+ .num_planes = 1,
+ .nr_comp = 3,
+ }, {
+ .name = "YUV 4:2:0 planar, YCbCr",
+ .pixelformat = V4L2_PIX_FMT_YVU420,
+ .depth = { 12 },
+ .color = GSC_YUV420,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CRCB,
+ .num_planes = 1,
+ .nr_comp = 3,
+
+ }, {
+ .name = "YUV 4:2:0 planar, Y/CbCr",
+ .pixelformat = V4L2_PIX_FMT_NV12,
+ .depth = { 12 },
+ .color = GSC_YUV420,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CBCR,
+ .num_planes = 1,
+ .nr_comp = 2,
+ }, {
+ .name = "YUV 4:2:0 planar, Y/CrCb",
+ .pixelformat = V4L2_PIX_FMT_NV21,
+ .depth = { 12 },
+ .color = GSC_YUV420,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CRCB,
+ .num_planes = 1,
+ .nr_comp = 2,
+ }, {
+ .name = "YUV 4:2:0 non-contiguous 2-planar, Y/CbCr",
+ .pixelformat = V4L2_PIX_FMT_NV12M,
+ .depth = { 8, 4 },
+ .color = GSC_YUV420,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CBCR,
+ .num_planes = 2,
+ .nr_comp = 2,
+ }, {
+ .name = "YUV 4:2:0 non-contiguous 3-planar, Y/Cb/Cr",
+ .pixelformat = V4L2_PIX_FMT_YUV420M,
+ .depth = { 8, 2, 2 },
+ .color = GSC_YUV420,
+ .yorder = GSC_LSB_Y,
+ .corder = GSC_CBCR,
+ .num_planes = 3,
+ .nr_comp = 3,
+ },
+};
+
+struct gsc_fmt *get_format(int index)
+{
+ return &gsc_formats[index];
+}
+
+struct gsc_fmt *find_fmt(u32 *pixelformat, u32 *mbus_code, int index)
+{
+ struct gsc_fmt *fmt, *def_fmt = NULL;
+ unsigned int i;
+
+ if (index >= ARRAY_SIZE(gsc_formats))
+ return NULL;
+
+ for (i = 0; i < ARRAY_SIZE(gsc_formats); ++i) {
+ fmt = get_format(i);
+ if (pixelformat && fmt->pixelformat == *pixelformat)
+ return fmt;
+ if (mbus_code && fmt->mbus_code == *mbus_code)
+ return fmt;
+ if (index == i)
+ def_fmt = fmt;
+ }
+ return def_fmt;
+
+}
+
+void gsc_set_frame_size(struct gsc_frame *frame, int width, int height)
+{
+ frame->f_width = width;
+ frame->f_height = height;
+ frame->crop.width = width;
+ frame->crop.height = height;
+ frame->crop.left = 0;
+ frame->crop.top = 0;
+}
+
+int gsc_cal_prescaler_ratio(struct gsc_variant *var, u32 src, u32 dst, u32 *ratio)
+{
+ if ((dst > src) || (dst >= src / var->poly_sc_down_max)) {
+ *ratio = 1;
+ return 0;
+ }
+
+ if ((src / var->poly_sc_down_max / var->pre_sc_down_max) > dst) {
+ gsc_err("scale ratio exceeded maximun scale down ratio(1/16)");
+ return -EINVAL;
+ }
+
+ *ratio = (dst > (src / 8)) ? 2 : 4;
+
+ return 0;
+}
+
+void gsc_get_prescaler_shfactor(u32 hratio, u32 vratio, u32 *sh)
+{
+ if (hratio == 4 && vratio == 4)
+ *sh = 4;
+ else if ((hratio == 4 && vratio == 2) ||
+ (hratio == 2 && vratio == 4))
+ *sh = 3;
+ else if ((hratio == 4 && vratio == 1) ||
+ (hratio == 1 && vratio == 4) ||
+ (hratio == 2 && vratio == 2))
+ *sh = 2;
+ else if (hratio == 1 && vratio == 1)
+ *sh = 0;
+ else
+ *sh = 1;
+}
+
+void gsc_check_src_scale_info(struct gsc_variant *var, struct gsc_frame *s_frame,
+ u32 *wratio, u32 tx, u32 ty, u32 *hratio)
+{
+ int remainder = 0, walign, halign;
+
+ if (is_yuv420(s_frame->fmt->color)) {
+ walign = GSC_SC_ALIGN_4;
+ halign = GSC_SC_ALIGN_4;
+ } else if (is_yuv422(s_frame->fmt->color)) {
+ walign = GSC_SC_ALIGN_4;
+ halign = GSC_SC_ALIGN_2;
+ } else {
+ walign = GSC_SC_ALIGN_2;
+ halign = GSC_SC_ALIGN_2;
+ }
+
+ remainder = s_frame->crop.width % (*wratio * walign);
+ if (remainder) {
+ s_frame->crop.width -= remainder;
+ gsc_cal_prescaler_ratio(var, s_frame->crop.width, tx, wratio);
+ gsc_info("cropped src width size is recalculated from %d to %d",
+ s_frame->crop.width + remainder, s_frame->crop.width);
+ }
+
+ remainder = s_frame->crop.height % (*hratio * halign);
+ if (remainder) {
+ s_frame->crop.height -= remainder;
+ gsc_cal_prescaler_ratio(var, s_frame->crop.height, ty, hratio);
+ gsc_info("cropped src height size is recalculated from %d to %d",
+ s_frame->crop.height + remainder, s_frame->crop.height);
+ }
+}
+
+int gsc_enum_fmt_mplane(struct v4l2_fmtdesc *f)
+{
+ struct gsc_fmt *fmt;
+
+ fmt = find_fmt(NULL, NULL, f->index);
+ if (!fmt)
+ return -EINVAL;
+
+ strncpy(f->description, fmt->name, sizeof(f->description) - 1);
+ f->pixelformat = fmt->pixelformat;
+
+ return 0;
+}
+
+u32 get_plane_size(struct gsc_frame *frame, unsigned int plane)
+{
+ if (!frame || plane >= frame->fmt->num_planes) {
+ gsc_err("Invalid argument");
+ return 0;
+ }
+
+ return frame->payload[plane];
+}
+
+u32 get_plane_info(struct gsc_frame frm, u32 addr, u32 *index)
+{
+ if (frm.addr.y == addr) {
+ *index = 0;
+ return frm.addr.y;
+ } else if (frm.addr.cb == addr) {
+ *index = 1;
+ return frm.addr.cb;
+ } else if (frm.addr.cr == addr) {
+ *index = 2;
+ return frm.addr.cr;
+ } else {
+ gsc_err("Plane address is wrong");
+ return -EINVAL;
+ }
+}
+
+void gsc_set_prefbuf(struct gsc_dev *gsc, struct gsc_frame frm)
+{
+ u32 f_chk_addr, f_chk_len, s_chk_addr, s_chk_len;
+ f_chk_addr = f_chk_len = s_chk_addr = s_chk_len = 0;
+
+ f_chk_addr = frm.addr.y;
+ f_chk_len = frm.payload[0];
+ if (frm.fmt->num_planes == 2) {
+ s_chk_addr = frm.addr.cb;
+ s_chk_len = frm.payload[1];
+ } else if (frm.fmt->num_planes == 3) {
+ u32 low_addr, low_plane, mid_addr, mid_plane, high_addr, high_plane;
+ u32 t_min, t_max;
+
+ t_min = min3(frm.addr.y, frm.addr.cb, frm.addr.cr);
+ low_addr = get_plane_info(frm, t_min, &low_plane);
+ t_max = max3(frm.addr.y, frm.addr.cb, frm.addr.cr);
+ high_addr = get_plane_info(frm, t_max, &high_plane);
+
+ mid_plane = 3 - (low_plane + high_plane);
+ if (mid_plane == 0)
+ mid_addr = frm.addr.y;
+ else if (mid_plane == 1)
+ mid_addr = frm.addr.cb;
+ else if (mid_plane == 2)
+ mid_addr = frm.addr.cr;
+ else
+ return;
+
+ f_chk_addr = low_addr;
+ if (mid_addr + frm.payload[mid_plane] - low_addr >
+ high_addr + frm.payload[high_plane] - mid_addr) {
+ f_chk_len = frm.payload[low_plane];
+ s_chk_addr = mid_addr;
+ s_chk_len = high_addr + frm.payload[high_plane] - mid_addr;
+ } else {
+ f_chk_len = mid_addr + frm.payload[mid_plane] - low_addr;
+ s_chk_addr = high_addr;
+ s_chk_len = frm.payload[high_plane];
+ }
+ }
+ gsc_dbg("f_addr = 0x%08x, f_len = %d, s_addr = 0x%08x, s_len = %d\n",
+ f_chk_addr, f_chk_len, s_chk_addr, s_chk_len);
+}
+
+int gsc_try_fmt_mplane(struct gsc_ctx *ctx, struct v4l2_format *f)
+{
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ struct gsc_variant *variant = gsc->variant;
+ struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+ struct gsc_fmt *fmt;
+ u32 max_w, max_h, mod_x, mod_y;
+ u32 min_w, min_h, tmp_w, tmp_h;
+ int i;
+
+ gsc_dbg("user put w: %d, h: %d", pix_mp->width, pix_mp->height);
+
+ fmt = find_fmt(&pix_mp->pixelformat, NULL, 0);
+ if (!fmt) {
+ gsc_err("pixelformat format (0x%X) invalid\n", pix_mp->pixelformat);
+ return -EINVAL;
+ }
+
+ if (pix_mp->field == V4L2_FIELD_ANY)
+ pix_mp->field = V4L2_FIELD_NONE;
+ else if (pix_mp->field != V4L2_FIELD_NONE) {
+ gsc_err("Not supported field order(%d)\n", pix_mp->field);
+ return -EINVAL;
+ }
+
+ max_w = variant->pix_max->target_rot_dis_w;
+ max_h = variant->pix_max->target_rot_dis_h;
+ if (V4L2_TYPE_IS_OUTPUT(f->type)) {
+ mod_x = ffs(variant->pix_align->org_w) - 1;
+ if (is_yuv420(fmt->color))
+ mod_y = ffs(variant->pix_align->org_h) - 1;
+ else
+ mod_y = ffs(variant->pix_align->org_h) - 2;
+ min_w = variant->pix_min->org_w;
+ min_h = variant->pix_min->org_h;
+ } else {
+ mod_x = ffs(variant->pix_align->org_w) - 1;
+ if (is_yuv420(fmt->color))
+ mod_y = ffs(variant->pix_align->org_h) - 1;
+ else
+ mod_y = ffs(variant->pix_align->org_h) - 2;
+ min_w = variant->pix_min->target_rot_dis_w;
+ min_h = variant->pix_min->target_rot_dis_h;
+ }
+ gsc_dbg("mod_x: %d, mod_y: %d, max_w: %d, max_h = %d",
+ mod_x, mod_y, max_w, max_h);
+ /* To check if image size is modified to adjust parameter against
+ hardware abilities */
+ tmp_w = pix_mp->width;
+ tmp_h = pix_mp->height;
+
+ v4l_bound_align_image(&pix_mp->width, min_w, max_w, mod_x,
+ &pix_mp->height, min_h, max_h, mod_y, 0);
+ if (tmp_w != pix_mp->width || tmp_h != pix_mp->height)
+ gsc_info("Image size has been modified from %dx%d to %dx%d",
+ tmp_w, tmp_h, pix_mp->width, pix_mp->height);
+
+ pix_mp->num_planes = fmt->num_planes;
+
+ if (ctx->gsc_ctrls.csc_eq_mode->val)
+ ctx->gsc_ctrls.csc_eq->val =
+ (pix_mp->width >= 1280) ? 1 : 0;
+ if (ctx->gsc_ctrls.csc_eq->val) /* HD */
+ pix_mp->colorspace = V4L2_COLORSPACE_REC709;
+ else /* SD */
+ pix_mp->colorspace = V4L2_COLORSPACE_SMPTE170M;
+
+
+ for (i = 0; i < pix_mp->num_planes; ++i) {
+ int bpl = (pix_mp->width * fmt->depth[i]) >> 3;
+ pix_mp->plane_fmt[i].bytesperline = bpl;
+ pix_mp->plane_fmt[i].sizeimage = bpl * pix_mp->height;
+
+ gsc_dbg("[%d]: bpl: %d, sizeimage: %d",
+ i, bpl, pix_mp->plane_fmt[i].sizeimage);
+ }
+
+ return 0;
+}
+
+int gsc_g_fmt_mplane(struct gsc_ctx *ctx, struct v4l2_format *f)
+{
+ struct gsc_frame *frame;
+ struct v4l2_pix_format_mplane *pix_mp;
+ int i;
+
+ frame = ctx_get_frame(ctx, f->type);
+ if (IS_ERR(frame))
+ return PTR_ERR(frame);
+
+ pix_mp = &f->fmt.pix_mp;
+
+ pix_mp->width = frame->f_width;
+ pix_mp->height = frame->f_height;
+ pix_mp->field = V4L2_FIELD_NONE;
+ pix_mp->pixelformat = frame->fmt->pixelformat;
+ pix_mp->colorspace = V4L2_COLORSPACE_JPEG;
+ pix_mp->num_planes = frame->fmt->num_planes;
+
+ for (i = 0; i < pix_mp->num_planes; ++i) {
+ pix_mp->plane_fmt[i].bytesperline = (frame->f_width *
+ frame->fmt->depth[i]) / 8;
+ pix_mp->plane_fmt[i].sizeimage = pix_mp->plane_fmt[i].bytesperline *
+ frame->f_height;
+ }
+
+ return 0;
+}
+
+void gsc_check_crop_change(u32 tmp_w, u32 tmp_h, u32 *w, u32 *h)
+{
+ if (tmp_w != *w || tmp_h != *h) {
+ gsc_info("Image cropped size has been modified from %dx%d to %dx%d",
+ *w, *h, tmp_w, tmp_h);
+ *w = tmp_w;
+ *h = tmp_h;
+ }
+}
+
+int gsc_g_crop(struct gsc_ctx *ctx, struct v4l2_crop *cr)
+{
+ struct gsc_frame *frame;
+
+ frame = ctx_get_frame(ctx, cr->type);
+ if (IS_ERR(frame))
+ return PTR_ERR(frame);
+
+ memcpy(&cr->c, &frame->crop, sizeof(struct v4l2_rect));
+
+ return 0;
+}
+
+int gsc_try_crop(struct gsc_ctx *ctx, struct v4l2_crop *cr)
+{
+ struct gsc_frame *f;
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ struct gsc_variant *variant = gsc->variant;
+ u32 mod_x = 0, mod_y = 0, tmp_w, tmp_h;
+ u32 min_w, min_h, max_w, max_h;
+
+ if (cr->c.top < 0 || cr->c.left < 0) {
+ gsc_err("doesn't support negative values for top & left\n");
+ return -EINVAL;
+ }
+ gsc_dbg("user put w: %d, h: %d", cr->c.width, cr->c.height);
+
+ if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ f = &ctx->d_frame;
+ else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ f = &ctx->s_frame;
+ else
+ return -EINVAL;
+
+ max_w = f->f_width;
+ max_h = f->f_height;
+ tmp_w = cr->c.width;
+ tmp_h = cr->c.height;
+
+ if (V4L2_TYPE_IS_OUTPUT(cr->type)) {
+ if ((is_yuv422(f->fmt->color) && f->fmt->nr_comp == 1) ||
+ is_rgb(f->fmt->color))
+ min_w = 32;
+ else
+ min_w = 64;
+ if ((is_yuv422(f->fmt->color) && f->fmt->nr_comp == 3) ||
+ is_yuv420(f->fmt->color))
+ min_h = 32;
+ else
+ min_h = 16;
+ } else {
+ if (is_yuv420(f->fmt->color) || is_yuv422(f->fmt->color))
+ mod_x = ffs(variant->pix_align->target_w) - 1;
+ if (is_yuv420(f->fmt->color))
+ mod_y = ffs(variant->pix_align->target_h) - 1;
+ if (ctx->gsc_ctrls.rotate->val == 90 ||
+ ctx->gsc_ctrls.rotate->val == 270) {
+ max_w = f->f_height;
+ max_h = f->f_width;
+ min_w = variant->pix_min->target_rot_en_w;
+ min_h = variant->pix_min->target_rot_en_h;
+ tmp_w = cr->c.height;
+ tmp_h = cr->c.width;
+ } else {
+ min_w = variant->pix_min->target_rot_dis_w;
+ min_h = variant->pix_min->target_rot_dis_h;
+ }
+ }
+ gsc_dbg("mod_x: %d, mod_y: %d, min_w: %d, min_h = %d,\
+ tmp_w : %d, tmp_h : %d",
+ mod_x, mod_y, min_w, min_h, tmp_w, tmp_h);
+
+ v4l_bound_align_image(&tmp_w, min_w, max_w, mod_x,
+ &tmp_h, min_h, max_h, mod_y, 0);
+
+ if (!V4L2_TYPE_IS_OUTPUT(cr->type) &&
+ (ctx->gsc_ctrls.rotate->val == 90 ||
+ ctx->gsc_ctrls.rotate->val == 270)) {
+ gsc_check_crop_change(tmp_h, tmp_w, &cr->c.width, &cr->c.height);
+ } else {
+ gsc_check_crop_change(tmp_w, tmp_h, &cr->c.width, &cr->c.height);
+ }
+
+ /* adjust left/top if cropping rectangle is out of bounds */
+ /* Need to add code to algin left value with 2's multiple */
+ if (cr->c.left + tmp_w > max_w)
+ cr->c.left = max_w - tmp_w;
+ if (cr->c.top + tmp_h > max_h)
+ cr->c.top = max_h - tmp_h;
+
+ if (is_yuv420(f->fmt->color) || is_yuv422(f->fmt->color))
+ if (cr->c.left % 2)
+ cr->c.left -= 1;
+
+ gsc_dbg("Aligned l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d",
+ cr->c.left, cr->c.top, cr->c.width, cr->c.height, max_w, max_h);
+
+ return 0;
+}
+
+int gsc_check_scaler_ratio(struct gsc_variant *var, int sw, int sh, int dw,
+ int dh, int rot, int out_path)
+{
+ int tmp_w, tmp_h, sc_down_max;
+ sc_down_max =
+ (out_path == GSC_DMA) ? var->sc_down_max : var->local_sc_down;
+
+ if (rot == 90 || rot == 270) {
+ tmp_w = dh;
+ tmp_h = dw;
+ } else {
+ tmp_w = dw;
+ tmp_h = dh;
+ }
+
+ if ((sw / tmp_w) > sc_down_max ||
+ (sh / tmp_h) > sc_down_max ||
+ (tmp_w / sw) > var->sc_up_max ||
+ (tmp_h / sh) > var->sc_up_max)
+ return -EINVAL;
+
+ return 0;
+}
+
+int gsc_set_scaler_info(struct gsc_ctx *ctx)
+{
+ struct gsc_scaler *sc = &ctx->scaler;
+ struct gsc_frame *s_frame = &ctx->s_frame;
+ struct gsc_frame *d_frame = &ctx->d_frame;
+ struct gsc_variant *variant = ctx->gsc_dev->variant;
+ int tx, ty;
+ int ret;
+
+ ret = gsc_check_scaler_ratio(variant, s_frame->crop.width,
+ s_frame->crop.height, d_frame->crop.width, d_frame->crop.height,
+ ctx->gsc_ctrls.rotate->val, ctx->out_path);
+ if (ret) {
+ gsc_err("out of scaler range");
+ return ret;
+ }
+
+ if (ctx->gsc_ctrls.rotate->val == 90 ||
+ ctx->gsc_ctrls.rotate->val == 270) {
+ ty = d_frame->crop.width;
+ tx = d_frame->crop.height;
+ } else {
+ tx = d_frame->crop.width;
+ ty = d_frame->crop.height;
+ }
+
+ ret = gsc_cal_prescaler_ratio(variant, s_frame->crop.width,
+ tx, &sc->pre_hratio);
+ if (ret) {
+ gsc_err("Horizontal scale ratio is out of range");
+ return ret;
+ }
+
+ ret = gsc_cal_prescaler_ratio(variant, s_frame->crop.height,
+ ty, &sc->pre_vratio);
+ if (ret) {
+ gsc_err("Vertical scale ratio is out of range");
+ return ret;
+ }
+
+ gsc_check_src_scale_info(variant, s_frame, &sc->pre_hratio,
+ tx, ty, &sc->pre_vratio);
+
+ gsc_get_prescaler_shfactor(sc->pre_hratio, sc->pre_vratio,
+ &sc->pre_shfactor);
+
+ sc->main_hratio = (s_frame->crop.width << 16) / tx;
+ sc->main_vratio = (s_frame->crop.height << 16) / ty;
+
+ gsc_dbg("scaler input/output size : sx = %d, sy = %d, tx = %d, ty = %d",
+ s_frame->crop.width, s_frame->crop.height, tx, ty);
+ gsc_dbg("scaler ratio info : pre_shfactor : %d, pre_h : %d, pre_v :%d,\
+ main_h : %ld, main_v : %ld", sc->pre_shfactor, sc->pre_hratio,
+ sc->pre_vratio, sc->main_hratio, sc->main_vratio);
+
+ return 0;
+}
+
+int gsc_pipeline_s_stream(struct gsc_dev *gsc, bool on)
+{
+ struct gsc_pipeline *p = &gsc->pipeline;
+ struct exynos_entity_data md_data;
+ int ret = 0;
+
+ /* If gscaler subdev calls the mixer's s_stream, the gscaler must
+ inform the mixer subdev pipeline started from gscaler */
+ if (!strncmp(p->disp->name, MXR_SUBDEV_NAME,
+ sizeof(MXR_SUBDEV_NAME) - 1)) {
+ md_data.mxr_data_from = FROM_GSC_SD;
+ v4l2_set_subdevdata(p->disp, &md_data);
+ }
+
+ ret = v4l2_subdev_call(p->disp, video, s_stream, on);
+ if (ret)
+ gsc_err("Display s_stream on failed\n");
+
+ return ret;
+}
+
+int gsc_out_link_validate(const struct media_pad *source,
+ const struct media_pad *sink)
+{
+ struct v4l2_subdev_format src_fmt;
+ struct v4l2_subdev_crop dst_crop;
+ struct v4l2_subdev *sd;
+ struct gsc_dev *gsc;
+ struct gsc_frame *f;
+ int ret;
+
+ if (media_entity_type(source->entity) != MEDIA_ENT_T_V4L2_SUBDEV ||
+ media_entity_type(sink->entity) != MEDIA_ENT_T_V4L2_SUBDEV) {
+ gsc_err("media entity type isn't subdev\n");
+ return 0;
+ }
+
+ sd = media_entity_to_v4l2_subdev(source->entity);
+ gsc = entity_data_to_gsc(v4l2_get_subdevdata(sd));
+ f = &gsc->out.ctx->d_frame;
+
+ src_fmt.format.width = f->crop.width;
+ src_fmt.format.height = f->crop.height;
+ src_fmt.format.code = f->fmt->mbus_code;
+
+ sd = media_entity_to_v4l2_subdev(sink->entity);
+ /* To check if G-Scaler destination size and Mixer destinatin size
+ are the same */
+ dst_crop.pad = sink->index;
+ dst_crop.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ ret = v4l2_subdev_call(sd, pad, get_crop, NULL, &dst_crop);
+ if (ret < 0 && ret != -ENOIOCTLCMD) {
+ gsc_err("subdev get_fmt is failed\n");
+ return -EPIPE;
+ }
+
+ if (src_fmt.format.width != dst_crop.rect.width ||
+ src_fmt.format.height != dst_crop.rect.height) {
+ gsc_err("sink and source format is different\
+ src_fmt.w = %d, src_fmt.h = %d,\
+ dst_crop.w = %d, dst_crop.h = %d, rotation = %d",
+ src_fmt.format.width, src_fmt.format.height,
+ dst_crop.rect.width, dst_crop.rect.height,
+ gsc->out.ctx->gsc_ctrls.rotate->val);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * V4L2 controls handling
+ */
+static int gsc_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct gsc_ctx *ctx = ctrl_to_ctx(ctrl);
+
+ switch (ctrl->id) {
+ case V4L2_CID_HFLIP:
+ user_to_drv(ctx->gsc_ctrls.hflip, ctrl->val);
+ break;
+
+ case V4L2_CID_VFLIP:
+ user_to_drv(ctx->gsc_ctrls.vflip, ctrl->val);
+ break;
+
+ case V4L2_CID_ROTATE:
+ user_to_drv(ctx->gsc_ctrls.rotate, ctrl->val);
+ break;
+
+ default:
+ break;
+ }
+
+ if (gsc_m2m_opened(ctx->gsc_dev))
+ gsc_ctx_state_lock_set(GSC_PARAMS, ctx);
+
+ return 0;
+}
+
+const struct v4l2_ctrl_ops gsc_ctrl_ops = {
+ .s_ctrl = gsc_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config gsc_custom_ctrl[] = {
+ {
+ .ops = &gsc_ctrl_ops,
+ .id = V4L2_CID_GLOBAL_ALPHA,
+ .name = "Set RGB alpha",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+ .max = 255,
+ .step = 1,
+ .def = 0,
+ }, {
+ .ops = &gsc_ctrl_ops,
+ .id = V4L2_CID_CACHEABLE,
+ .name = "Set cacheable",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+ .max = 1,
+ .def = true,
+ }, {
+ .ops = &gsc_ctrl_ops,
+ .id = V4L2_CID_TV_LAYER_BLEND_ENABLE,
+ .name = "Enable layer alpha blending",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+ }, {
+ .ops = &gsc_ctrl_ops,
+ .id = V4L2_CID_TV_LAYER_BLEND_ALPHA,
+ .name = "Set alpha for layer blending",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+ .min = 0,
+ .max = 255,
+ .step = 1,
+ }, {
+ .ops = &gsc_ctrl_ops,
+ .id = V4L2_CID_TV_PIXEL_BLEND_ENABLE,
+ .name = "Enable pixel alpha blending",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+ }, {
+ .ops = &gsc_ctrl_ops,
+ .id = V4L2_CID_TV_CHROMA_ENABLE,
+ .name = "Enable chromakey",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+ }, {
+ .ops = &gsc_ctrl_ops,
+ .id = V4L2_CID_TV_CHROMA_VALUE,
+ .name = "Set chromakey value",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+ .min = 0,
+ .max = 255,
+ .step = 1,
+ }, {
+ .ops = &gsc_ctrl_ops,
+ .id = V4L2_CID_CSC_EQ_MODE,
+ .name = "Set CSC equation mode",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+ .max = DEFAULT_CSC_EQ,
+ .def = DEFAULT_CSC_EQ,
+ }, {
+ .ops = &gsc_ctrl_ops,
+ .id = V4L2_CID_CSC_EQ,
+ .name = "Set CSC equation",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+ .step = 1,
+ .max = 8,
+ .def = V4L2_COLORSPACE_REC709,
+ }, {
+ .ops = &gsc_ctrl_ops,
+ .id = V4L2_CID_CSC_RANGE,
+ .name = "Set CSC range",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+ .max = DEFAULT_CSC_RANGE,
+ .def = DEFAULT_CSC_RANGE,
+ },
+};
+
+int gsc_ctrls_create(struct gsc_ctx *ctx)
+{
+ if (ctx->ctrls_rdy) {
+ gsc_err("Control handler of this context was created already");
+ return 0;
+ }
+
+ v4l2_ctrl_handler_init(&ctx->ctrl_handler, GSC_MAX_CTRL_NUM);
+
+ ctx->gsc_ctrls.rotate = v4l2_ctrl_new_std(&ctx->ctrl_handler,
+ &gsc_ctrl_ops, V4L2_CID_ROTATE, 0, 270, 90, 0);
+ ctx->gsc_ctrls.hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler,
+ &gsc_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0);
+ ctx->gsc_ctrls.vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler,
+ &gsc_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0);
+
+
+ ctx->gsc_ctrls.global_alpha = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
+ &gsc_custom_ctrl[0], NULL);
+ ctx->gsc_ctrls.layer_blend_en = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
+ &gsc_custom_ctrl[2], NULL);
+ ctx->gsc_ctrls.layer_alpha = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
+ &gsc_custom_ctrl[3], NULL);
+ ctx->gsc_ctrls.pixel_blend_en = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
+ &gsc_custom_ctrl[4], NULL);
+ ctx->gsc_ctrls.chroma_en = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
+ &gsc_custom_ctrl[5], NULL);
+ ctx->gsc_ctrls.chroma_val = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
+ &gsc_custom_ctrl[6], NULL);
+
+/* for CSC equation */
+ ctx->gsc_ctrls.csc_eq_mode = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
+ &gsc_custom_ctrl[7], NULL);
+ ctx->gsc_ctrls.csc_eq = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
+ &gsc_custom_ctrl[8], NULL);
+ ctx->gsc_ctrls.csc_range = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
+ &gsc_custom_ctrl[9], NULL);
+
+ ctx->ctrls_rdy = ctx->ctrl_handler.error == 0;
+
+
+ if (ctx->ctrl_handler.error) {
+ int err = ctx->ctrl_handler.error;
+ v4l2_ctrl_handler_free(&ctx->ctrl_handler);
+ gsc_err("Failed to gscaler control hander create");
+ return err;
+ }
+
+ return 0;
+}
+
+void gsc_ctrls_delete(struct gsc_ctx *ctx)
+{
+ if (ctx->ctrls_rdy) {
+ v4l2_ctrl_handler_free(&ctx->ctrl_handler);
+ ctx->ctrls_rdy = false;
+ }
+}
+
+/* The color format (nr_comp, num_planes) must be already configured. */
+int gsc_prepare_addr(struct gsc_ctx *ctx, struct vb2_buffer *vb,
+ struct gsc_frame *frame, struct gsc_addr *addr)
+{
+ int ret = 0;
+ u32 pix_size;
+
+ if (IS_ERR(vb) || IS_ERR(frame)) {
+ gsc_err("Invalid argument");
+ return -EINVAL;
+ }
+
+ pix_size = frame->f_width * frame->f_height;
+
+ gsc_dbg("num_planes= %d, nr_comp= %d, pix_size= %d",
+ frame->fmt->num_planes, frame->fmt->nr_comp, pix_size);
+
+ addr->y = vb2_dma_contig_plane_dma_addr(vb, 0);
+
+ if (frame->fmt->num_planes == 1) {
+ switch (frame->fmt->nr_comp) {
+ case 1:
+ addr->cb = 0;
+ addr->cr = 0;
+ break;
+ case 2:
+ /* decompose Y into Y/Cb */
+ addr->cb = (dma_addr_t)(addr->y + pix_size);
+ addr->cr = 0;
+ break;
+ case 3:
+ addr->cb = (dma_addr_t)(addr->y + pix_size);
+ addr->cr = (dma_addr_t)(addr->cb + (pix_size >> 2));
+ break;
+ default:
+ gsc_err("Invalid the number of color planes");
+ return -EINVAL;
+ }
+ } else {
+ if (frame->fmt->num_planes >= 2)
+ addr->cb = vb2_dma_contig_plane_dma_addr(vb, 1);
+
+ if (frame->fmt->num_planes == 3)
+ addr->cr = vb2_dma_contig_plane_dma_addr(vb, 2);
+ }
+
+ if (frame->fmt->pixelformat == V4L2_PIX_FMT_YVU420) {
+ u32 t_cb = addr->cb;
+ addr->cb = addr->cr;
+ addr->cr = t_cb;
+ }
+
+ gsc_dbg("ADDR: y= 0x%X cb= 0x%X cr= 0x%X ret= %d",
+ addr->y, addr->cb, addr->cr, ret);
+
+ return ret;
+}
+
+void gsc_wq_suspend(struct work_struct *work)
+{
+ struct gsc_dev *gsc = container_of(work, struct gsc_dev,
+ work_struct);
+ pm_runtime_put_sync(&gsc->pdev->dev);
+}
+
+void gsc_cap_irq_handler(struct gsc_dev *gsc)
+{
+ int done_index;
+
+ done_index = gsc_hw_get_done_output_buf_index(gsc);
+ gsc_info("done_index : %d", done_index);
+ if (done_index < 0)
+ gsc_err("All buffers are masked\n");
+ test_bit(ST_CAPT_RUN, &gsc->state) ? :
+ set_bit(ST_CAPT_RUN, &gsc->state);
+ vb2_buffer_done(gsc->cap.vbq.bufs[done_index], VB2_BUF_STATE_DONE);
+}
+
+static irqreturn_t gsc_irq_handler(int irq, void *priv)
+{
+ struct gsc_dev *gsc = priv;
+ int gsc_irq;
+
+ gsc_irq = gsc_hw_get_irq_status(gsc);
+ gsc_hw_clear_irq(gsc, gsc_irq);
+
+ if (gsc_irq == GSC_OR_IRQ) {
+ gsc_err("Local path input over-run interrupt has occurred!\n");
+ return IRQ_HANDLED;
+ }
+
+ spin_lock(&gsc->slock);
+
+ if (test_and_clear_bit(ST_M2M_RUN, &gsc->state)) {
+ struct vb2_buffer *src_vb, *dst_vb;
+ struct gsc_ctx *ctx =
+ v4l2_m2m_get_curr_priv(gsc->m2m.m2m_dev);
+
+ if (!ctx || !ctx->m2m_ctx)
+ goto isr_unlock;
+
+ src_vb = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+ dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
+ if (src_vb && dst_vb) {
+ v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_DONE);
+ v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_DONE);
+
+ if (test_and_clear_bit(ST_STOP_REQ, &gsc->state))
+ wake_up(&gsc->irq_queue);
+ else
+ v4l2_m2m_job_finish(gsc->m2m.m2m_dev, ctx->m2m_ctx);
+
+ /* wake_up job_abort, stop_streaming */
+ spin_lock(&ctx->slock);
+ if (ctx->state & GSC_CTX_STOP_REQ) {
+ ctx->state &= ~GSC_CTX_STOP_REQ;
+ wake_up(&gsc->irq_queue);
+ }
+ spin_unlock(&ctx->slock);
+ }
+ /* schedule pm_runtime_put_sync */
+ queue_work(gsc->irq_workqueue, &gsc->work_struct);
+ } else if (test_bit(ST_OUTPUT_STREAMON, &gsc->state)) {
+ if (!list_empty(&gsc->out.active_buf_q)) {
+ struct gsc_input_buf *done_buf;
+ done_buf = active_queue_pop(&gsc->out, gsc);
+ gsc_hw_set_input_buf_masking(gsc, done_buf->idx, true);
+ if (!list_is_last(&done_buf->list, &gsc->out.active_buf_q)) {
+ vb2_buffer_done(&done_buf->vb, VB2_BUF_STATE_DONE);
+ list_del(&done_buf->list);
+ }
+ }
+ } else if (test_bit(ST_CAPT_PEND, &gsc->state)) {
+ gsc_cap_irq_handler(gsc);
+ }
+
+isr_unlock:
+ spin_unlock(&gsc->slock);
+ return IRQ_HANDLED;
+}
+
+static int gsc_get_media_info(struct device *dev, void *p)
+{
+ struct exynos_md **mdev = p;
+ struct platform_device *pdev = to_platform_device(dev);
+
+ mdev[pdev->id] = dev_get_drvdata(dev);
+ if (!mdev[pdev->id])
+ return -ENODEV;
+
+ return 0;
+}
+
+static int gsc_runtime_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct gsc_dev *gsc = (struct gsc_dev *)platform_get_drvdata(pdev);
+
+ if (gsc_m2m_opened(gsc))
+ gsc->m2m.ctx = NULL;
+
+ clk_disable(gsc->clock);
+ clear_bit(ST_PWR_ON, &gsc->state);
+
+ return 0;
+}
+
+static int gsc_runtime_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct gsc_dev *gsc = (struct gsc_dev *)platform_get_drvdata(pdev);
+
+ clk_enable(gsc->clock);
+ set_bit(ST_PWR_ON, &gsc->state);
+ return 0;
+}
+
+static inline void *gsc_get_drv_data(struct platform_device *pdev);
+
+static int gsc_probe(struct platform_device *pdev)
+{
+ struct gsc_dev *gsc;
+ struct resource *res;
+ struct gsc_driverdata *drv_data;
+ struct device_driver *driver;
+ struct exynos_md *mdev[MDEV_MAX_NUM] = {NULL,};
+ int ret = 0;
+ char workqueue_name[WORKQUEUE_NAME_SIZE];
+
+ dev_dbg(&pdev->dev, "%s():\n", __func__);
+
+ drv_data = (struct gsc_driverdata *) gsc_get_drv_data(pdev);
+
+
+ if (pdev->dev.of_node) {
+ pdev->id = of_alias_get_id(pdev->dev.of_node, "gsc");
+ if (pdev->id < 0)
+ dev_err(&pdev->dev, "failed to get alias id, errno %d\n", ret);
+ }
+
+ if (pdev->id >= drv_data->num_entities) {
+ dev_err(&pdev->dev, "Invalid platform device id: %d\n",
+ pdev->id);
+ return -EINVAL;
+ }
+
+ gsc = kzalloc(sizeof(struct gsc_dev), GFP_KERNEL);
+ if (!gsc)
+ return -ENOMEM;
+
+ gsc->id = pdev->id;
+ gsc->variant = drv_data->variant[gsc->id];
+ gsc->pdev = pdev;
+ gsc->pdata = pdev->dev.platform_data;
+
+ init_waitqueue_head(&gsc->irq_queue);
+ spin_lock_init(&gsc->slock);
+ mutex_init(&gsc->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;
+ }
+
+ gsc->regs_res = request_mem_region(res->start, resource_size(res),
+ dev_name(&pdev->dev));
+ if (!gsc->regs_res) {
+ dev_err(&pdev->dev, "failed to obtain register region\n");
+ ret = -ENOENT;
+ goto err_info;
+ }
+
+ gsc->regs = ioremap(res->start, resource_size(res));
+ if (!gsc->regs) {
+ dev_err(&pdev->dev, "failed to map registers\n");
+ ret = -ENXIO;
+ goto err_req_region;
+ }
+
+ /* Get Gscaler clock */
+ gsc->clock = clk_get(&gsc->pdev->dev, GSC_CLOCK_GATE_NAME);
+ if (IS_ERR(gsc->clock)) {
+ gsc_err("failed to get gscaler.%d clock", gsc->id);
+ goto err_regs_unmap;
+ }
+ clk_put(gsc->clock);
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to get IRQ resource\n");
+ ret = -ENXIO;
+ goto err_regs_unmap;
+ }
+ gsc->irq = res->start;
+
+ ret = request_irq(gsc->irq, gsc_irq_handler, 0, pdev->name, gsc);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to install irq (%d)\n", ret);
+ goto err_regs_unmap;
+ }
+
+ platform_set_drvdata(pdev, gsc);
+
+ ret = gsc_register_m2m_device(gsc);
+ if (ret)
+ goto err_irq;
+
+ /* find media device */
+ driver = driver_find(MDEV_MODULE_NAME, &platform_bus_type);
+ if (!driver)
+ goto err_irq;
+
+ ret = driver_for_each_device(driver, NULL, &mdev[0],
+ gsc_get_media_info);
+
+ if (ret)
+ goto err_irq;
+
+ gsc->mdev[MDEV_OUTPUT] = mdev[MDEV_OUTPUT];
+ gsc->mdev[MDEV_CAPTURE] = mdev[MDEV_CAPTURE];
+
+ gsc_dbg("mdev->mdev[%d] = 0x%08x, mdev->mdev[%d] = 0x%08x",
+ MDEV_OUTPUT, (u32)gsc->mdev[MDEV_OUTPUT], MDEV_CAPTURE,
+ (u32)gsc->mdev[MDEV_CAPTURE]);
+
+ ret = gsc_register_output_device(gsc);
+ if (ret)
+ goto err_irq;
+
+ if (gsc->pdata) {
+ ret = gsc_register_capture_device(gsc);
+ if (ret)
+ goto err_irq;
+ }
+
+ sprintf(workqueue_name, "gsc%d_irq_wq_name", gsc->id);
+ gsc->irq_workqueue = create_singlethread_workqueue(workqueue_name);
+ if (gsc->irq_workqueue == NULL) {
+ dev_err(&pdev->dev, "failed to create workqueue for gsc\n");
+ goto err_irq;
+ }
+ INIT_WORK(&gsc->work_struct, gsc_wq_suspend);
+
+ gsc->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
+ if (IS_ERR(gsc->alloc_ctx)) {
+ ret = PTR_ERR(gsc->alloc_ctx);
+ goto err_wq;
+ }
+
+ gsc_runtime_resume(&pdev->dev);
+
+ gsc_info("gsc-%d registered successfully", gsc->id);
+
+ return 0;
+
+err_wq:
+ destroy_workqueue(gsc->irq_workqueue);
+err_irq:
+ free_irq(gsc->irq, gsc);
+err_regs_unmap:
+ iounmap(gsc->regs);
+err_req_region:
+ release_resource(gsc->regs_res);
+ kfree(gsc->regs_res);
+err_info:
+ kfree(gsc);
+
+ return ret;
+}
+
+static int __devexit gsc_remove(struct platform_device *pdev)
+{
+ struct gsc_dev *gsc =
+ (struct gsc_dev *)platform_get_drvdata(pdev);
+
+ free_irq(gsc->irq, gsc);
+
+ gsc_unregister_m2m_device(gsc);
+ gsc_unregister_output_device(gsc);
+ gsc_unregister_capture_device(gsc);
+
+ vb2_dma_contig_cleanup_ctx(gsc->alloc_ctx);
+ pm_runtime_disable(&pdev->dev);
+
+ iounmap(gsc->regs);
+ release_resource(gsc->regs_res);
+ kfree(gsc->regs_res);
+ kfree(gsc);
+
+ dev_info(&pdev->dev, "%s driver unloaded\n", pdev->name);
+ return 0;
+}
+
+static int gsc_suspend(struct device *dev)
+{
+ struct platform_device *pdev;
+ struct gsc_dev *gsc;
+ int ret = 0;
+
+ pdev = to_platform_device(dev);
+ gsc = (struct gsc_dev *)platform_get_drvdata(pdev);
+
+ if (gsc_m2m_run(gsc)) {
+ set_bit(ST_STOP_REQ, &gsc->state);
+ ret = wait_event_timeout(gsc->irq_queue,
+ !test_bit(ST_STOP_REQ, &gsc->state),
+ GSC_SHUTDOWN_TIMEOUT);
+ if (ret == 0)
+ dev_err(&gsc->pdev->dev, "wait timeout : %s\n",
+ __func__);
+ }
+ if (gsc_cap_active(gsc)) {
+ gsc_err("capture device is running!!");
+ return -EINVAL;
+ }
+
+ pm_runtime_put_sync(dev);
+
+ return ret;
+}
+
+static int gsc_resume(struct device *dev)
+{
+ struct platform_device *pdev;
+ struct gsc_driverdata *drv_data;
+ struct gsc_dev *gsc;
+ struct gsc_ctx *ctx;
+
+ pdev = to_platform_device(dev);
+ gsc = (struct gsc_dev *)platform_get_drvdata(pdev);
+ drv_data = (struct gsc_driverdata *)
+ platform_get_device_id(pdev)->driver_data;
+
+ pm_runtime_get_sync(dev);
+ if (gsc_m2m_opened(gsc)) {
+ ctx = v4l2_m2m_get_curr_priv(gsc->m2m.m2m_dev);
+ if (ctx != NULL) {
+ gsc->m2m.ctx = NULL;
+ v4l2_m2m_job_finish(gsc->m2m.m2m_dev, ctx->m2m_ctx);
+ }
+ }
+
+ return 0;
+}
+
+static const struct dev_pm_ops gsc_pm_ops = {
+ .suspend = gsc_suspend,
+ .resume = gsc_resume,
+ .runtime_suspend = gsc_runtime_suspend,
+ .runtime_resume = gsc_runtime_resume,
+};
+
+struct gsc_pix_max gsc_v_100_max = {
+ .org_scaler_bypass_w = 8192,
+ .org_scaler_bypass_h = 8192,
+ .org_scaler_input_w = 4800,
+ .org_scaler_input_h = 3344,
+ .real_rot_dis_w = 4800,
+ .real_rot_dis_h = 3344,
+ .real_rot_en_w = 2047,
+ .real_rot_en_h = 2047,
+ .target_rot_dis_w = 4800,
+ .target_rot_dis_h = 3344,
+ .target_rot_en_w = 2016,
+ .target_rot_en_h = 2016,
+};
+
+struct gsc_pix_min gsc_v_100_min = {
+ .org_w = 64,
+ .org_h = 32,
+ .real_w = 64,
+ .real_h = 32,
+ .target_rot_dis_w = 64,
+ .target_rot_dis_h = 32,
+ .target_rot_en_w = 32,
+ .target_rot_en_h = 16,
+};
+
+struct gsc_pix_align gsc_v_100_align = {
+ .org_h = 16,
+ .org_w = 16, /* yuv420 : 16, others : 8 */
+ .offset_h = 2, /* yuv420/422 : 2, others : 1 */
+ .real_w = 16, /* yuv420/422 : 4~16, others : 2~8 */
+ .real_h = 16, /* yuv420 : 4~16, others : 1 */
+ .target_w = 2, /* yuv420/422 : 2, others : 1 */
+ .target_h = 2, /* yuv420 : 2, others : 1 */
+};
+
+struct gsc_variant gsc_v_100_variant = {
+ .pix_max = &gsc_v_100_max,
+ .pix_min = &gsc_v_100_min,
+ .pix_align = &gsc_v_100_align,
+ .in_buf_cnt = 8,
+ .out_buf_cnt = 16,
+ .sc_up_max = 8,
+ .sc_down_max = 16,
+ .poly_sc_down_max = 4,
+ .pre_sc_down_max = 4,
+ .local_sc_down = 2,
+};
+
+static struct gsc_driverdata gsc_v_100_drvdata = {
+ .variant = {
+ [0] = &gsc_v_100_variant,
+ [1] = &gsc_v_100_variant,
+ [2] = &gsc_v_100_variant,
+ [3] = &gsc_v_100_variant,
+ },
+ .num_entities = 4,
+ .lclk_frequency = 266000000UL,
+};
+
+static struct platform_device_id gsc_driver_ids[] = {
+ {
+ .name = "exynos-gsc",
+ .driver_data = (unsigned long)&gsc_v_100_drvdata,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(platform, gsc_driver_ids);
+
+#ifdef CONFIG_OF
+static const struct of_device_id exynos_gsc_match[] = {
+ { .compatible = "samsung,exynos-gsc",
+ .data = &gsc_v_100_drvdata, },
+ {},
+};
+MODULE_DEVICE_TABLE(of, exynos_gsc_match);
+#else
+#define exynos_gsc_match NULL
+#endif
+
+static inline void *gsc_get_drv_data(struct platform_device *pdev)
+{
+#ifdef CONFIG_OF
+ if (pdev->dev.of_node) {
+ const struct of_device_id *match;
+ match = of_match_node(exynos_gsc_match, pdev->dev.of_node);
+ return (struct gsc_driverdata *) match->data;
+ }
+#endif
+ return (struct gsc_driverdata *)platform_get_device_id(pdev)->driver_data;
+}
+
+static struct platform_driver gsc_driver = {
+ .probe = gsc_probe,
+ .remove = __devexit_p(gsc_remove),
+ .id_table = gsc_driver_ids,
+ .driver = {
+ .name = GSC_MODULE_NAME,
+ .owner = THIS_MODULE,
+ .pm = &gsc_pm_ops,
+ .of_match_table = exynos_gsc_match,
+ }
+};
+
+static int __init gsc_init(void)
+{
+ int ret = platform_driver_register(&gsc_driver);
+ if (ret)
+ gsc_err("platform_driver_register failed: %d\n", ret);
+ return ret;
+}
+
+static void __exit gsc_exit(void)
+{
+ platform_driver_unregister(&gsc_driver);
+}
+
+module_init(gsc_init);
+module_exit(gsc_exit);
+
+MODULE_AUTHOR("Hyunwong Kim <khw0178.kim@xxxxxxxxxxx>");
+MODULE_DESCRIPTION("Samsung EXYNOS5 Soc series G-Scaler driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* linux/drivers/media/video/exynos/gsc/gsc-core.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * header file for Samsung EXYNOS5 SoC series G-scaler driver
+
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef GSC_CORE_H_
+#define GSC_CORE_H_
+
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/videodev2.h>
+#include <linux/io.h>
+#include <linux/pm_runtime.h>
+#include <media/videobuf2-core.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-mediabus.h>
+#include <media/exynos_mc.h>
+#include <media/exynos_gscaler.h>
+#include <media/videobuf2-dma-contig.h>
+#include "regs-gsc.h"
+extern int gsc_dbg;
+
+#define gsc_info(fmt, args...) \
+ do { \
+ if (gsc_dbg >= 6) \
+ printk(KERN_INFO "[INFO]%s:%d: "fmt "\n", \
+ __func__, __LINE__, ##args); \
+ } while (0)
+
+#define gsc_err(fmt, args...) \
+ do { \
+ if (gsc_dbg >= 3) \
+ printk(KERN_ERR "[ERROR]%s:%d: "fmt "\n", \
+ __func__, __LINE__, ##args); \
+ } while (0)
+
+#define gsc_warn(fmt, args...) \
+ do { \
+ if (gsc_dbg >= 4) \
+ printk(KERN_WARNING "[WARN]%s:%d: "fmt "\n", \
+ __func__, __LINE__, ##args); \
+ } while (0)
+
+#define gsc_dbg(fmt, args...) \
+ do { \
+ if (gsc_dbg >= 7) \
+ printk(KERN_DEBUG "[DEBUG]%s:%d: "fmt "\n", \
+ __func__, __LINE__, ##args); \
+ } while (0)
+
+#define GSC_MAX_CLOCKS 3
+#define GSC_SHUTDOWN_TIMEOUT ((100*HZ)/1000)
+#define GSC_MAX_DEVS 4
+#define WORKQUEUE_NAME_SIZE 32
+#define FIMD_NAME_SIZE 32
+#define GSC_M2M_BUF_NUM 0
+#define GSC_OUT_BUF_MAX 2
+#define GSC_MAX_CTRL_NUM 10
+#define GSC_OUT_MAX_MASK_NUM 7
+#define GSC_SC_ALIGN_4 4
+#define GSC_SC_ALIGN_2 2
+#define GSC_OUT_DEF_SRC 15
+#define GSC_OUT_DEF_DST 7
+#define DEFAULT_GSC_SINK_WIDTH 800
+#define DEFAULT_GSC_SINK_HEIGHT 480
+#define DEFAULT_GSC_SOURCE_WIDTH 800
+#define DEFAULT_GSC_SOURCE_HEIGHT 480
+#define DEFAULT_CSC_EQ 1
+#define DEFAULT_CSC_RANGE 1
+
+#define GSC_LAST_DEV_ID 3
+#define GSC_PAD_SINK 0
+#define GSC_PAD_SOURCE 1
+#define GSC_PADS_NUM 2
+
+#define GSC_PARAMS (1 << 0)
+#define GSC_SRC_FMT (1 << 1)
+#define GSC_DST_FMT (1 << 2)
+#define GSC_CTX_M2M (1 << 3)
+#define GSC_CTX_OUTPUT (1 << 4)
+#define GSC_CTX_START (1 << 5)
+#define GSC_CTX_STOP_REQ (1 << 6)
+#define GSC_CTX_CAP (1 << 10)
+#define MAX_MDEV 2
+
+enum gsc_dev_flags {
+ /* for global */
+ ST_PWR_ON,
+ ST_STOP_REQ,
+ /* for m2m node */
+ ST_M2M_OPEN,
+ ST_M2M_RUN,
+ /* for output node */
+ ST_OUTPUT_OPEN,
+ ST_OUTPUT_STREAMON,
+ /* for capture node */
+ ST_CAPT_OPEN,
+ ST_CAPT_PEND,
+ ST_CAPT_RUN,
+ ST_CAPT_STREAM,
+ ST_CAPT_PIPE_STREAM,
+ ST_CAPT_SUSPENDED,
+ ST_CAPT_SHUT,
+ ST_CAPT_APPLY_CFG,
+ ST_CAPT_JPEG,
+};
+
+enum gsc_cap_input_entity {
+ GSC_IN_NONE,
+ GSC_IN_FLITE_PREVIEW,
+ GSC_IN_FLITE_CAMCORDING,
+ GSC_IN_FIMD_WRITEBACK,
+};
+
+enum gsc_irq {
+ GSC_OR_IRQ = 17,
+ GSC_DONE_IRQ = 16,
+};
+
+/**
+ * enum gsc_datapath - the path of data used for gscaler
+ * @GSC_CAMERA: from camera
+ * @GSC_DMA: from/to DMA
+ * @GSC_LOCAL: to local path
+ * @GSC_WRITEBACK: from FIMD
+ */
+enum gsc_datapath {
+ GSC_CAMERA = 0x1,
+ GSC_DMA,
+ GSC_MIXER,
+ GSC_FIMD,
+ GSC_WRITEBACK,
+};
+
+enum gsc_color_fmt {
+ GSC_RGB = 0x1,
+ GSC_YUV420 = 0x2,
+ GSC_YUV422 = 0x4,
+ GSC_YUV444 = 0x8,
+};
+
+enum gsc_yuv_fmt {
+ GSC_LSB_Y = 0x10,
+ GSC_LSB_C,
+ GSC_CBCR = 0x20,
+ GSC_CRCB,
+};
+
+#define fh_to_ctx(__fh) container_of(__fh, struct gsc_ctx, fh)
+#define is_rgb(x) (!!((x) & 0x1))
+#define is_yuv420(x) (!!((x) & 0x2))
+#define is_yuv422(x) (!!((x) & 0x4))
+#define gsc_m2m_run(dev) test_bit(ST_M2M_RUN, &(dev)->state)
+#define gsc_m2m_opened(dev) test_bit(ST_M2M_OPEN, &(dev)->state)
+#define gsc_out_run(dev) test_bit(ST_OUTPUT_STREAMON, &(dev)->state)
+#define gsc_out_opened(dev) test_bit(ST_OUTPUT_OPEN, &(dev)->state)
+#define gsc_cap_opened(dev) test_bit(ST_CAPT_OPEN, &(dev)->state)
+#define gsc_cap_active(dev) test_bit(ST_CAPT_RUN, &(dev)->state)
+
+#define ctrl_to_ctx(__ctrl) \
+ container_of((__ctrl)->handler, struct gsc_ctx, ctrl_handler)
+#define entity_data_to_gsc(data) \
+ container_of(data, struct gsc_dev, md_data)
+#define gsc_capture_get_frame(ctx, pad)\
+ ((pad == GSC_PAD_SINK) ? &ctx->s_frame : &ctx->d_frame)
+/**
+ * struct gsc_fmt - the driver's internal color format data
+ * @mbus_code: Media Bus pixel code, -1 if not applicable
+ * @name: format description
+ * @pixelformat: the fourcc code for this format, 0 if not applicable
+ * @yorder: Y/C order
+ * @corder: Chrominance order control
+ * @num_planes: number of physically non-contiguous data planes
+ * @nr_comp: number of physically contiguous data planes
+ * @depth: per plane driver's private 'number of bits per pixel'
+ * @flags: flags indicating which operation mode format applies to
+ */
+struct gsc_fmt {
+ enum v4l2_mbus_pixelcode mbus_code;
+ char *name;
+ u32 pixelformat;
+ u32 color;
+ u32 yorder;
+ u32 corder;
+ u16 num_planes;
+ u16 nr_comp;
+ u8 depth[VIDEO_MAX_PLANES];
+ u32 flags;
+};
+
+/**
+ * struct gsc_input_buf - the driver's video buffer
+ * @vb: videobuf2 buffer
+ * @list : linked list structure for buffer queue
+ * @idx : index of G-Scaler input buffer
+ */
+struct gsc_input_buf {
+ struct vb2_buffer vb;
+ struct list_head list;
+ int idx;
+};
+
+/**
+ * struct gsc_addr - the G-Scaler physical address set
+ * @y: luminance plane address
+ * @cb: Cb plane address
+ * @cr: Cr plane address
+ */
+struct gsc_addr {
+ dma_addr_t y;
+ dma_addr_t cb;
+ dma_addr_t cr;
+};
+
+/* struct gsc_ctrls - the G-Scaler control set
+ * @rotate: rotation degree
+ * @hflip: horizontal flip
+ * @vflip: vertical flip
+ * @global_alpha: the alpha value of current frame
+ * @layer_blend_en: enable mixer layer alpha blending
+ * @layer_alpha: set alpha value for mixer layer
+ * @pixel_blend_en: enable mixer pixel alpha blending
+ * @chroma_en: enable chromakey
+ * @chroma_val: set value for chromakey
+ * @csc_eq_mode: mode to select csc equation of current frame
+ * @csc_eq: csc equation of current frame
+ * @csc_range: csc range of current frame
+ */
+struct gsc_ctrls {
+ struct v4l2_ctrl *rotate;
+ struct v4l2_ctrl *hflip;
+ struct v4l2_ctrl *vflip;
+ struct v4l2_ctrl *global_alpha;
+ struct v4l2_ctrl *layer_blend_en;
+ struct v4l2_ctrl *layer_alpha;
+ struct v4l2_ctrl *pixel_blend_en;
+ struct v4l2_ctrl *chroma_en;
+ struct v4l2_ctrl *chroma_val;
+ struct v4l2_ctrl *csc_eq_mode;
+ struct v4l2_ctrl *csc_eq;
+ struct v4l2_ctrl *csc_range;
+};
+
+/**
+ * struct gsc_scaler - the configuration data for G-Scaler inetrnal scaler
+ * @pre_shfactor: pre sclaer shift factor
+ * @pre_hratio: horizontal ratio of the prescaler
+ * @pre_vratio: vertical ratio of the prescaler
+ * @main_hratio: the main scaler's horizontal ratio
+ * @main_vratio: the main scaler's vertical ratio
+ */
+struct gsc_scaler {
+ u32 pre_shfactor;
+ u32 pre_hratio;
+ u32 pre_vratio;
+ unsigned long main_hratio;
+ unsigned long main_vratio;
+};
+
+struct gsc_dev;
+
+struct gsc_ctx;
+
+/**
+ * struct gsc_frame - source/target frame properties
+ * @f_width: SRC : SRCIMG_WIDTH, DST : OUTPUTDMA_WHOLE_IMG_WIDTH
+ * @f_height: SRC : SRCIMG_HEIGHT, DST : OUTPUTDMA_WHOLE_IMG_HEIGHT
+ * @crop: cropped(source)/scaled(destination) size
+ * @payload: image size in bytes (w x h x bpp)
+ * @addr: image frame buffer physical addresses
+ * @fmt: G-scaler color format pointer
+ * @alph: frame's alpha value
+ */
+struct gsc_frame {
+ u32 f_width;
+ u32 f_height;
+ struct v4l2_rect crop;
+ unsigned long payload[VIDEO_MAX_PLANES];
+ struct gsc_addr addr;
+ struct gsc_fmt *fmt;
+ u8 alpha;
+};
+
+struct gsc_sensor_info {
+ struct exynos_isp_info *pdata;
+ struct v4l2_subdev *sd;
+ struct clk *camclk;
+};
+
+struct gsc_capture_device {
+ struct gsc_ctx *ctx;
+ struct video_device *vfd;
+ struct v4l2_subdev *sd_cap;
+ struct v4l2_subdev *sd_disp;
+ struct v4l2_subdev *sd_flite[FLITE_MAX_ENTITIES];
+ struct v4l2_subdev *sd_csis[CSIS_MAX_ENTITIES];
+ struct gsc_sensor_info sensor[SENSOR_MAX_ENTITIES];
+ struct media_pad vd_pad;
+ struct media_pad sd_pads[GSC_PADS_NUM];
+ struct v4l2_mbus_framefmt mbus_fmt[GSC_PADS_NUM];
+ struct vb2_queue vbq;
+ int active_buf_cnt;
+ int buf_index;
+ int input_index;
+ int refcnt;
+ u32 frame_cnt;
+ u32 reqbufs_cnt;
+ enum gsc_cap_input_entity input;
+ u32 cam_index;
+};
+
+/**
+ * struct gsc_output_device - v4l2 output device data
+ * @vfd: the video device node for v4l2 output mode
+ * @alloc_ctx: v4l2 memory-to-memory device data
+ * @ctx: hardware context data
+ * @sd: v4l2 subdev pointer of gscaler
+ * @vbq: videobuf2 queue of gscaler output device
+ * @vb_pad: the pad of gscaler video entity
+ * @sd_pads: pads of gscaler subdev entity
+ * @active_buf_q: linked list structure of input buffer
+ * @req_cnt: the number of requested buffer
+ */
+struct gsc_output_device {
+ struct video_device *vfd;
+ struct vb2_alloc_ctx *alloc_ctx;
+ struct gsc_ctx *ctx;
+ struct v4l2_subdev *sd;
+ struct vb2_queue vbq;
+ struct media_pad vd_pad;
+ struct media_pad sd_pads[GSC_PADS_NUM];
+ struct list_head active_buf_q;
+ int req_cnt;
+};
+
+/**
+ * struct gsc_m2m_device - v4l2 memory-to-memory device data
+ * @vfd: the video device node for v4l2 m2m mode
+ * @m2m_dev: v4l2 memory-to-memory device data
+ * @ctx: hardware context data
+ * @refcnt: the reference counter
+ */
+struct gsc_m2m_device {
+ struct video_device *vfd;
+ struct v4l2_m2m_dev *m2m_dev;
+ struct gsc_ctx *ctx;
+ int refcnt;
+};
+
+/**
+ * struct gsc_pix_max - image pixel size limits in various IP configurations
+ *
+ * @org_scaler_bypass_w: max pixel width when the scaler is disabled
+ * @org_scaler_bypass_h: max pixel height when the scaler is disabled
+ * @org_scaler_input_w: max pixel width when the scaler is enabled
+ * @org_scaler_input_h: max pixel height when the scaler is enabled
+ * @real_rot_dis_w: max pixel src cropped height with the rotator is off
+ * @real_rot_dis_h: max pixel src croppped width with the rotator is off
+ * @real_rot_en_w: max pixel src cropped width with the rotator is on
+ * @real_rot_en_h: max pixel src cropped height with the rotator is on
+ * @target_rot_dis_w: max pixel dst scaled width with the rotator is off
+ * @target_rot_dis_h: max pixel dst scaled height with the rotator is off
+ * @target_rot_en_w: max pixel dst scaled width with the rotator is on
+ * @target_rot_en_h: max pixel dst scaled height with the rotator is on
+ */
+struct gsc_pix_max {
+ u16 org_scaler_bypass_w;
+ u16 org_scaler_bypass_h;
+ u16 org_scaler_input_w;
+ u16 org_scaler_input_h;
+ u16 real_rot_dis_w;
+ u16 real_rot_dis_h;
+ u16 real_rot_en_w;
+ u16 real_rot_en_h;
+ u16 target_rot_dis_w;
+ u16 target_rot_dis_h;
+ u16 target_rot_en_w;
+ u16 target_rot_en_h;
+};
+
+/**
+ * struct gsc_pix_min - image pixel size limits in various IP configurations
+ *
+ * @org_w: minimum source pixel width
+ * @org_h: minimum source pixel height
+ * @real_w: minimum input crop pixel width
+ * @real_h: minimum input crop pixel height
+ * @target_rot_dis_w: minimum output scaled pixel height when rotator is off
+ * @target_rot_dis_h: minimum output scaled pixel height when rotator is off
+ * @target_rot_en_w: minimum output scaled pixel height when rotator is on
+ * @target_rot_en_h: minimum output scaled pixel height when rotator is on
+ */
+struct gsc_pix_min {
+ u16 org_w;
+ u16 org_h;
+ u16 real_w;
+ u16 real_h;
+ u16 target_rot_dis_w;
+ u16 target_rot_dis_h;
+ u16 target_rot_en_w;
+ u16 target_rot_en_h;
+};
+
+struct gsc_pix_align {
+ u16 org_h;
+ u16 org_w;
+ u16 offset_h;
+ u16 real_w;
+ u16 real_h;
+ u16 target_w;
+ u16 target_h;
+};
+
+/**
+ * struct gsc_variant - G-Scaler variant information
+ */
+struct gsc_variant {
+ struct gsc_pix_max *pix_max;
+ struct gsc_pix_min *pix_min;
+ struct gsc_pix_align *pix_align;
+ u16 in_buf_cnt;
+ u16 out_buf_cnt;
+ u16 sc_up_max;
+ u16 sc_down_max;
+ u16 poly_sc_down_max;
+ u16 pre_sc_down_max;
+ u16 local_sc_down;
+};
+
+/**
+ * struct gsc_driverdata - per device type driver data for init time.
+ *
+ * @variant: the variant information for this driver.
+ * @lclk_frequency: g-scaler clock frequency
+ * @num_entities: the number of g-scalers
+ */
+struct gsc_driverdata {
+ struct gsc_variant *variant[GSC_MAX_DEVS];
+ unsigned long lclk_frequency;
+ int num_entities;
+};
+
+struct gsc_pipeline {
+ struct media_pipeline *pipe;
+ struct v4l2_subdev *sd_gsc;
+ struct v4l2_subdev *disp;
+ struct v4l2_subdev *flite;
+ struct v4l2_subdev *csis;
+ struct v4l2_subdev *sensor;
+};
+
+/**
+ * struct gsc_dev - abstraction for G-Scaler entity
+ * @slock: the spinlock protecting this data structure
+ * @lock: the mutex protecting this data structure
+ * @pdev: pointer to the G-Scaler platform device
+ * @variant: the IP variant information
+ * @id: g_scaler device index (0..GSC_MAX_DEVS)
+ * @regs: the mapped hardware registers
+ * @regs_res: the resource claimed for IO registers
+ * @irq: G-scaler interrupt number
+ * @irq_queue: interrupt handler waitqueue
+ * @m2m: memory-to-memory V4L2 device information
+ * @out: memory-to-local V4L2 output device information
+ * @state: flags used to synchronize m2m and capture mode operation
+ * @alloc_ctx: videobuf2 memory allocator context
+ * @vb2: videobuf2 memory allocator call-back functions
+ * @mdev: pointer to exynos media device
+ * @pipeline: pointer to subdevs that are connected with gscaler
+ */
+struct gsc_dev {
+ spinlock_t slock;
+ struct mutex lock;
+ struct platform_device *pdev;
+ struct gsc_variant *variant;
+ u16 id;
+ struct clk *clock;
+ void __iomem *regs;
+ struct resource *regs_res;
+ int irq;
+ wait_queue_head_t irq_queue;
+ struct work_struct work_struct;
+ struct workqueue_struct *irq_workqueue;
+ struct gsc_m2m_device m2m;
+ struct gsc_output_device out;
+ struct gsc_capture_device cap;
+ struct exynos_platform_gscaler *pdata;
+ unsigned long state;
+ struct vb2_alloc_ctx *alloc_ctx;
+ struct exynos_md *mdev[MAX_MDEV];
+ struct gsc_pipeline pipeline;
+ struct exynos_entity_data md_data;
+};
+
+/**
+ * gsc_ctx - the device context data
+ * @slock: spinlock protecting this data structure
+ * @s_frame: source frame properties
+ * @d_frame: destination frame properties
+ * @in_path: input mode (DMA or camera)
+ * @out_path: output mode (DMA or FIFO)
+ * @scaler: image scaler properties
+ * @flags: additional flags for image conversion
+ * @state: flags to keep track of user configuration
+ * @gsc_dev: the g-scaler device this context applies to
+ * @m2m_ctx: memory-to-memory device context
+ * @fh: v4l2 file handle
+ * @ctrl_handler: v4l2 controls handler
+ * @ctrls_rdy: true if the control handler is initialized
+ * @gsc_ctrls G-Scaler control set
+ * @m2m_ctx: memory-to-memory device context
+ */
+struct gsc_ctx {
+ spinlock_t slock;
+ struct gsc_frame s_frame;
+ struct gsc_frame d_frame;
+ enum gsc_datapath in_path;
+ enum gsc_datapath out_path;
+ struct gsc_scaler scaler;
+ u32 flags;
+ u32 state;
+ struct gsc_dev *gsc_dev;
+ struct v4l2_m2m_ctx *m2m_ctx;
+ struct v4l2_fh fh;
+ struct v4l2_ctrl_handler ctrl_handler;
+ struct gsc_ctrls gsc_ctrls;
+ bool ctrls_rdy;
+};
+
+void gsc_set_prefbuf(struct gsc_dev *gsc, struct gsc_frame frm);
+void gsc_clk_release(struct gsc_dev *gsc);
+int gsc_register_m2m_device(struct gsc_dev *gsc);
+void gsc_unregister_m2m_device(struct gsc_dev *gsc);
+int gsc_register_output_device(struct gsc_dev *gsc);
+void gsc_unregister_output_device(struct gsc_dev *gsc);
+int gsc_register_capture_device(struct gsc_dev *gsc);
+void gsc_unregister_capture_device(struct gsc_dev *gsc);
+
+u32 get_plane_size(struct gsc_frame *fr, unsigned int plane);
+char gsc_total_fmts(void);
+struct gsc_fmt *get_format(int index);
+struct gsc_fmt *find_fmt(u32 *pixelformat, u32 *mbus_code, int index);
+int gsc_enum_fmt_mplane(struct v4l2_fmtdesc *f);
+int gsc_try_fmt_mplane(struct gsc_ctx *ctx, struct v4l2_format *f);
+void gsc_set_frame_size(struct gsc_frame *frame, int width, int height);
+int gsc_g_fmt_mplane(struct gsc_ctx *ctx, struct v4l2_format *f);
+void gsc_check_crop_change(u32 tmp_w, u32 tmp_h, u32 *w, u32 *h);
+int gsc_g_crop(struct gsc_ctx *ctx, struct v4l2_crop *cr);
+int gsc_try_crop(struct gsc_ctx *ctx, struct v4l2_crop *cr);
+int gsc_cal_prescaler_ratio(struct gsc_variant *var, u32 src, u32 dst, u32 *ratio);
+void gsc_get_prescaler_shfactor(u32 hratio, u32 vratio, u32 *sh);
+void gsc_check_src_scale_info(struct gsc_variant *var, struct gsc_frame *s_frame,
+ u32 *wratio, u32 tx, u32 ty, u32 *hratio);
+int gsc_check_scaler_ratio(struct gsc_variant *var, int sw, int sh, int dw,
+ int dh, int rot, int out_path);
+int gsc_set_scaler_info(struct gsc_ctx *ctx);
+int gsc_ctrls_create(struct gsc_ctx *ctx);
+void gsc_ctrls_delete(struct gsc_ctx *ctx);
+int gsc_out_hw_set(struct gsc_ctx *ctx);
+int gsc_out_set_in_addr(struct gsc_dev *gsc, struct gsc_ctx *ctx,
+ struct gsc_input_buf *buf, int index);
+int gsc_prepare_addr(struct gsc_ctx *ctx, struct vb2_buffer *vb,
+ struct gsc_frame *frame, struct gsc_addr *addr);
+int gsc_out_link_validate(const struct media_pad *source,
+ const struct media_pad *sink);
+int gsc_pipeline_s_stream(struct gsc_dev *gsc, bool on);
+
+static inline void gsc_ctx_state_lock_set(u32 state, struct gsc_ctx *ctx)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ctx->slock, flags);
+ ctx->state |= state;
+ spin_unlock_irqrestore(&ctx->slock, flags);
+}
+
+static inline void gsc_ctx_state_lock_clear(u32 state, struct gsc_ctx *ctx)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ctx->slock, flags);
+ ctx->state &= ~state;
+ spin_unlock_irqrestore(&ctx->slock, flags);
+}
+
+static inline int get_win_num(struct gsc_dev *dev)
+{
+ return (dev->id == 3) ? 2 : dev->id;
+}
+
+static inline int is_output(enum v4l2_buf_type type)
+{
+ return (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE ||
+ type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ? 1 : 0;
+}
+
+static inline void gsc_hw_enable_control(struct gsc_dev *dev, bool on)
+{
+ u32 cfg = readl(dev->regs + GSC_ENABLE);
+
+ if (on)
+ cfg |= GSC_ENABLE_ON;
+ else
+ cfg &= ~GSC_ENABLE_ON;
+
+ writel(cfg, dev->regs + GSC_ENABLE);
+}
+
+static inline int gsc_hw_get_irq_status(struct gsc_dev *dev)
+{
+ u32 cfg = readl(dev->regs + GSC_IRQ);
+ if (cfg & (1 << GSC_OR_IRQ))
+ return GSC_OR_IRQ;
+ else
+ return GSC_DONE_IRQ;
+
+}
+
+static inline void gsc_hw_clear_irq(struct gsc_dev *dev, int irq)
+{
+ u32 cfg = readl(dev->regs + GSC_IRQ);
+ if (irq == GSC_OR_IRQ)
+ cfg |= GSC_IRQ_STATUS_OR_IRQ;
+ else if (irq == GSC_DONE_IRQ)
+ cfg |= GSC_IRQ_STATUS_OR_FRM_DONE;
+ writel(cfg, dev->regs + GSC_IRQ);
+}
+
+static inline void gsc_lock(struct vb2_queue *vq)
+{
+ struct gsc_ctx *ctx = vb2_get_drv_priv(vq);
+ mutex_lock(&ctx->gsc_dev->lock);
+}
+
+static inline void gsc_unlock(struct vb2_queue *vq)
+{
+ struct gsc_ctx *ctx = vb2_get_drv_priv(vq);
+ mutex_unlock(&ctx->gsc_dev->lock);
+}
+
+static inline bool gsc_ctx_state_is_set(u32 mask, struct gsc_ctx *ctx)
+{
+ unsigned long flags;
+ bool ret;
+
+ spin_lock_irqsave(&ctx->slock, flags);
+ ret = (ctx->state & mask) == mask;
+ spin_unlock_irqrestore(&ctx->slock, flags);
+ return ret;
+}
+
+static inline struct gsc_frame *ctx_get_frame(struct gsc_ctx *ctx,
+ enum v4l2_buf_type type)
+{
+ struct gsc_frame *frame;
+
+ if (V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE == type) {
+ frame = &ctx->s_frame;
+ } else if (V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE == type) {
+ frame = &ctx->d_frame;
+ } else {
+ gsc_err("Wrong buffer/video queue type (%d)", type);
+ return ERR_PTR(-EINVAL);
+ }
+
+ return frame;
+}
+
+static inline struct gsc_input_buf *
+active_queue_pop(struct gsc_output_device *vid_out, struct gsc_dev *dev)
+{
+ struct gsc_input_buf *buf;
+
+ buf = list_entry(vid_out->active_buf_q.next, struct gsc_input_buf, list);
+ return buf;
+}
+
+static inline void active_queue_push(struct gsc_output_device *vid_out,
+ struct gsc_input_buf *buf, struct gsc_dev *dev)
+{
+ unsigned long flags;
+ spin_lock_irqsave(&dev->slock, flags);
+ list_add_tail(&buf->list, &vid_out->active_buf_q);
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+static inline struct gsc_dev *entity_to_gsc(struct media_entity *me)
+{
+ struct v4l2_subdev *sd;
+
+ sd = container_of(me, struct v4l2_subdev, entity);
+ return entity_data_to_gsc(v4l2_get_subdevdata(sd));
+}
+
+static inline void user_to_drv(struct v4l2_ctrl *ctrl, s32 value)
+{
+ ctrl->cur.val = ctrl->val = value;
+}
+
+void gsc_hw_set_sw_reset(struct gsc_dev *dev);
+void gsc_hw_set_one_frm_mode(struct gsc_dev *dev, bool mask);
+void gsc_hw_set_frm_done_irq_mask(struct gsc_dev *dev, bool mask);
+void gsc_hw_set_overflow_irq_mask(struct gsc_dev *dev, bool mask);
+void gsc_hw_set_gsc_irq_enable(struct gsc_dev *dev, bool mask);
+void gsc_hw_set_input_buf_mask_all(struct gsc_dev *dev);
+void gsc_hw_set_output_buf_mask_all(struct gsc_dev *dev);
+void gsc_hw_set_input_buf_masking(struct gsc_dev *dev, u32 shift, bool enable);
+void gsc_hw_set_output_buf_masking(struct gsc_dev *dev, u32 shift, bool enable);
+void gsc_hw_set_input_addr(struct gsc_dev *dev, struct gsc_addr *addr, int index);
+void gsc_hw_set_output_addr(struct gsc_dev *dev, struct gsc_addr *addr, int index);
+void gsc_hw_set_input_path(struct gsc_ctx *ctx);
+void gsc_hw_set_in_size(struct gsc_ctx *ctx);
+void gsc_hw_set_in_image_rgb(struct gsc_ctx *ctx);
+void gsc_hw_set_in_image_format(struct gsc_ctx *ctx);
+void gsc_hw_set_output_path(struct gsc_ctx *ctx);
+void gsc_hw_set_out_size(struct gsc_ctx *ctx);
+void gsc_hw_set_out_image_rgb(struct gsc_ctx *ctx);
+void gsc_hw_set_out_image_format(struct gsc_ctx *ctx);
+void gsc_hw_set_prescaler(struct gsc_ctx *ctx);
+void gsc_hw_set_mainscaler(struct gsc_ctx *ctx);
+void gsc_hw_set_rotation(struct gsc_ctx *ctx);
+void gsc_hw_set_global_alpha(struct gsc_ctx *ctx);
+void gsc_hw_set_sfr_update(struct gsc_ctx *ctx);
+void gsc_hw_set_local_dst(int id, bool on);
+void gsc_hw_set_sysreg_writeback(struct gsc_ctx *ctx);
+void gsc_hw_set_sysreg_camif(bool on);
+
+int gsc_hw_get_input_buf_mask_status(struct gsc_dev *dev);
+int gsc_hw_get_done_input_buf_index(struct gsc_dev *dev);
+int gsc_hw_get_done_output_buf_index(struct gsc_dev *dev);
+int gsc_hw_get_nr_unmask_bits(struct gsc_dev *dev);
+int gsc_wait_reset(struct gsc_dev *dev);
+int gsc_wait_operating(struct gsc_dev *dev);
+int gsc_wait_stop(struct gsc_dev *dev);
+
+void gsc_disp_fifo_sw_reset(struct gsc_dev *dev);
+void gsc_pixelasync_sw_reset(struct gsc_dev *dev);
+
+
+#endif /* GSC_CORE_H_ */
--- /dev/null
+/* linux/drivers/media/video/exynos/gsc/gsc-m2m.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Samsung EXYNOS5 SoC series G-scaler driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, 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/workqueue.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/list.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <media/v4l2-ioctl.h>
+
+#include "gsc-core.h"
+
+static int gsc_ctx_stop_req(struct gsc_ctx *ctx)
+{
+ struct gsc_ctx *curr_ctx;
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ int ret = 0;
+
+ curr_ctx = v4l2_m2m_get_curr_priv(gsc->m2m.m2m_dev);
+ if (!gsc_m2m_run(gsc) || (curr_ctx != ctx))
+ return 0;
+ ctx->state |= GSC_CTX_STOP_REQ;
+ ret = wait_event_timeout(gsc->irq_queue,
+ !gsc_ctx_state_is_set(GSC_CTX_STOP_REQ, ctx),
+ GSC_SHUTDOWN_TIMEOUT);
+ if (!ret)
+ ret = -EBUSY;
+
+ return ret;
+}
+
+static int gsc_m2m_stop_streaming(struct vb2_queue *q)
+{
+ struct gsc_ctx *ctx = q->drv_priv;
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ int ret;
+
+ ret = gsc_ctx_stop_req(ctx);
+ /* FIXME: need to add v4l2_m2m_job_finish(fail) if ret is timeout */
+ if (ret < 0)
+ dev_err(&gsc->pdev->dev, "wait timeout : %s\n", __func__);
+
+ return 0;
+}
+
+static void gsc_m2m_job_abort(void *priv)
+{
+ struct gsc_ctx *ctx = priv;
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ int ret;
+
+ ret = gsc_ctx_stop_req(ctx);
+ /* FIXME: need to add v4l2_m2m_job_finish(fail) if ret is timeout */
+ if (ret < 0)
+ dev_err(&gsc->pdev->dev, "wait timeout : %s\n", __func__);
+}
+
+int gsc_fill_addr(struct gsc_ctx *ctx)
+{
+ struct gsc_frame *s_frame, *d_frame;
+ struct vb2_buffer *vb = NULL;
+ int ret = 0;
+
+ s_frame = &ctx->s_frame;
+ d_frame = &ctx->d_frame;
+
+ vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
+ ret = gsc_prepare_addr(ctx, vb, s_frame, &s_frame->addr);
+ if (ret)
+ return ret;
+
+ vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+ ret = gsc_prepare_addr(ctx, vb, d_frame, &d_frame->addr);
+
+ return ret;
+}
+
+static void gsc_m2m_device_run(void *priv)
+{
+ struct gsc_ctx *ctx = priv;
+ struct gsc_dev *gsc;
+ unsigned long flags;
+ u32 ret;
+ bool is_set = false;
+
+ if (WARN(!ctx, "null hardware context\n"))
+ return;
+
+ gsc = ctx->gsc_dev;
+ pm_runtime_get_sync(&gsc->pdev->dev);
+
+ spin_lock_irqsave(&ctx->slock, flags);
+ /* Reconfigure hardware if the context has changed. */
+ if (gsc->m2m.ctx != ctx) {
+ gsc_dbg("gsc->m2m.ctx = 0x%p, current_ctx = 0x%p",
+ gsc->m2m.ctx, ctx);
+ ctx->state |= GSC_PARAMS;
+ gsc->m2m.ctx = ctx;
+ }
+
+ is_set = (ctx->state & GSC_CTX_STOP_REQ) ? 1 : 0;
+ ctx->state &= ~GSC_CTX_STOP_REQ;
+ if (is_set) {
+ wake_up(&gsc->irq_queue);
+ goto put_device;
+ }
+
+ ret = gsc_fill_addr(ctx);
+ if (ret) {
+ gsc_err("Wrong address");
+ goto put_device;
+ }
+
+ gsc_set_prefbuf(gsc, ctx->s_frame);
+ gsc_hw_set_input_addr(gsc, &ctx->s_frame.addr, GSC_M2M_BUF_NUM);
+ gsc_hw_set_output_addr(gsc, &ctx->d_frame.addr, GSC_M2M_BUF_NUM);
+
+ if (ctx->state & GSC_PARAMS) {
+ gsc_hw_set_input_buf_masking(gsc, GSC_M2M_BUF_NUM, false);
+ gsc_hw_set_output_buf_masking(gsc, GSC_M2M_BUF_NUM, false);
+ gsc_hw_set_frm_done_irq_mask(gsc, false);
+ gsc_hw_set_gsc_irq_enable(gsc, true);
+
+ if (gsc_set_scaler_info(ctx)) {
+ gsc_err("Scaler setup error");
+ goto put_device;
+ }
+
+ gsc_hw_set_input_path(ctx);
+ gsc_hw_set_in_size(ctx);
+ gsc_hw_set_in_image_format(ctx);
+
+ gsc_hw_set_output_path(ctx);
+ gsc_hw_set_out_size(ctx);
+ gsc_hw_set_out_image_format(ctx);
+
+ gsc_hw_set_prescaler(ctx);
+ gsc_hw_set_mainscaler(ctx);
+ gsc_hw_set_rotation(ctx);
+ gsc_hw_set_global_alpha(ctx);
+ }
+ /* When you update SFRs in the middle of operating
+ gsc_hw_set_sfr_update(ctx);
+ */
+
+ ctx->state &= ~GSC_PARAMS;
+
+ if (!test_and_set_bit(ST_M2M_RUN, &gsc->state)) {
+ /* One frame mode sequence
+ GSCALER_ON on -> GSCALER_OP_STATUS is operating ->
+ GSCALER_ON off */
+ gsc_hw_enable_control(gsc, true);
+ ret = gsc_wait_operating(gsc);
+ if (ret < 0) {
+ gsc_err("gscaler wait operating timeout");
+ goto put_device;
+ }
+ gsc_hw_enable_control(gsc, false);
+ }
+
+ spin_unlock_irqrestore(&ctx->slock, flags);
+ return;
+
+put_device:
+ ctx->state &= ~GSC_PARAMS;
+ spin_unlock_irqrestore(&ctx->slock, flags);
+ pm_runtime_put_sync(&gsc->pdev->dev);
+}
+
+static int gsc_m2m_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
+ unsigned int *num_buffers, unsigned int *num_planes,
+ unsigned int sizes[], void *allocators[])
+{
+ struct gsc_ctx *ctx = vb2_get_drv_priv(vq);
+ struct gsc_frame *frame;
+ int i;
+
+ frame = ctx_get_frame(ctx, vq->type);
+ if (IS_ERR(frame))
+ return PTR_ERR(frame);
+
+ if (!frame->fmt)
+ return -EINVAL;
+
+ *num_planes = frame->fmt->num_planes;
+ for (i = 0; i < frame->fmt->num_planes; i++) {
+ sizes[i] = get_plane_size(frame, i);
+ allocators[i] = ctx->gsc_dev->alloc_ctx;
+ }
+ return 0;
+}
+
+static int gsc_m2m_buf_prepare(struct vb2_buffer *vb)
+{
+ struct gsc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct gsc_frame *frame;
+ int i;
+
+ frame = ctx_get_frame(ctx, vb->vb2_queue->type);
+ if (IS_ERR(frame))
+ return PTR_ERR(frame);
+
+ if (!V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
+ for (i = 0; i < frame->fmt->num_planes; i++)
+ vb2_set_plane_payload(vb, i, frame->payload[i]);
+ }
+
+ return 0;
+}
+
+static void gsc_m2m_buf_queue(struct vb2_buffer *vb)
+{
+ struct gsc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+
+ gsc_dbg("ctx: %p, ctx->state: 0x%x", ctx, ctx->state);
+
+ if (ctx->m2m_ctx)
+ v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
+}
+
+struct vb2_ops gsc_m2m_qops = {
+ .queue_setup = gsc_m2m_queue_setup,
+ .buf_prepare = gsc_m2m_buf_prepare,
+ .buf_queue = gsc_m2m_buf_queue,
+ .wait_prepare = gsc_unlock,
+ .wait_finish = gsc_lock,
+ .stop_streaming = gsc_m2m_stop_streaming,
+};
+
+static int gsc_m2m_querycap(struct file *file, void *fh,
+ struct v4l2_capability *cap)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+ struct gsc_dev *gsc = ctx->gsc_dev;
+
+ strncpy(cap->driver, gsc->pdev->name, sizeof(cap->driver) - 1);
+ strncpy(cap->card, gsc->pdev->name, sizeof(cap->card) - 1);
+ cap->bus_info[0] = 0;
+ cap->capabilities = V4L2_CAP_STREAMING |
+ V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT |
+ V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE;
+
+ return 0;
+}
+
+static int gsc_m2m_enum_fmt_mplane(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ return gsc_enum_fmt_mplane(f);
+}
+
+static int gsc_m2m_g_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+
+ if ((f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) &&
+ (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE))
+ return -EINVAL;
+
+ return gsc_g_fmt_mplane(ctx, f);
+}
+
+static int gsc_m2m_try_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+
+ if ((f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) &&
+ (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE))
+ return -EINVAL;
+
+ return gsc_try_fmt_mplane(ctx, f);
+}
+
+static int gsc_m2m_s_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+ struct vb2_queue *vq;
+ struct gsc_frame *frame;
+ struct v4l2_pix_format_mplane *pix;
+ int i, ret = 0;
+
+ ret = gsc_m2m_try_fmt_mplane(file, fh, f);
+ if (ret)
+ return ret;
+
+ vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
+
+ if (vb2_is_streaming(vq)) {
+ gsc_err("queue (%d) busy", f->type);
+ return -EBUSY;
+ }
+
+ if (V4L2_TYPE_IS_OUTPUT(f->type))
+ frame = &ctx->s_frame;
+ else
+ frame = &ctx->d_frame;
+
+
+ pix = &f->fmt.pix_mp;
+ frame->fmt = find_fmt(&pix->pixelformat, NULL, 0);
+ if (!frame->fmt)
+ return -EINVAL;
+
+ for (i = 0; i < frame->fmt->num_planes; i++)
+ frame->payload[i] = pix->plane_fmt[i].sizeimage;
+
+ gsc_set_frame_size(frame, pix->width, pix->height);
+
+ if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ gsc_ctx_state_lock_set(GSC_PARAMS | GSC_DST_FMT, ctx);
+ else
+ gsc_ctx_state_lock_set(GSC_PARAMS | GSC_SRC_FMT, ctx);
+
+ gsc_dbg("f_w: %d, f_h: %d", frame->f_width, frame->f_height);
+
+ return 0;
+}
+
+static int gsc_m2m_reqbufs(struct file *file, void *fh,
+ struct v4l2_requestbuffers *reqbufs)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ struct gsc_frame *frame;
+ u32 max_cnt;
+
+ max_cnt = (reqbufs->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ?
+ gsc->variant->in_buf_cnt : gsc->variant->out_buf_cnt;
+ if (reqbufs->count > max_cnt)
+ return -EINVAL;
+ else if (reqbufs->count == 0) {
+ if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ gsc_ctx_state_lock_clear(GSC_SRC_FMT, ctx);
+ else
+ gsc_ctx_state_lock_clear(GSC_DST_FMT, ctx);
+ }
+
+ frame = ctx_get_frame(ctx, reqbufs->type);
+
+ return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
+}
+
+static int gsc_m2m_querybuf(struct file *file, void *fh,
+ struct v4l2_buffer *buf)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+ return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
+}
+
+static int gsc_m2m_qbuf(struct file *file, void *fh,
+ struct v4l2_buffer *buf)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+ return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int gsc_m2m_dqbuf(struct file *file, void *fh,
+ struct v4l2_buffer *buf)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+ return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int gsc_m2m_streamon(struct file *file, void *fh,
+ enum v4l2_buf_type type)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+
+ /* The source and target color format need to be set */
+ if (V4L2_TYPE_IS_OUTPUT(type)) {
+ if (!gsc_ctx_state_is_set(GSC_SRC_FMT, ctx))
+ return -EINVAL;
+ } else if (!gsc_ctx_state_is_set(GSC_DST_FMT, ctx)) {
+ return -EINVAL;
+ }
+
+ return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
+}
+
+static int gsc_m2m_streamoff(struct file *file, void *fh,
+ enum v4l2_buf_type type)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+ return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
+}
+
+static int gsc_m2m_cropcap(struct file *file, void *fh,
+ struct v4l2_cropcap *cr)
+{
+ struct gsc_frame *frame;
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+
+ frame = ctx_get_frame(ctx, cr->type);
+ if (IS_ERR(frame))
+ return PTR_ERR(frame);
+
+ cr->bounds.left = 0;
+ cr->bounds.top = 0;
+ cr->bounds.width = frame->f_width;
+ cr->bounds.height = frame->f_height;
+ cr->defrect = cr->bounds;
+
+ return 0;
+}
+
+static int gsc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+
+ return gsc_g_crop(ctx, cr);
+}
+
+static int gsc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(fh);
+ struct gsc_variant *variant = ctx->gsc_dev->variant;
+ struct gsc_frame *f;
+ int ret;
+
+ ret = gsc_try_crop(ctx, cr);
+ if (ret)
+ return ret;
+
+ f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ?
+ &ctx->s_frame : &ctx->d_frame;
+
+ /* Check to see if scaling ratio is within supported range */
+ if (gsc_ctx_state_is_set(GSC_DST_FMT | GSC_SRC_FMT, ctx)) {
+ if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ ret = gsc_check_scaler_ratio(variant, cr->c.width,
+ cr->c.height, ctx->d_frame.crop.width,
+ ctx->d_frame.crop.height,
+ ctx->gsc_ctrls.rotate->val, ctx->out_path);
+ } else {
+ ret = gsc_check_scaler_ratio(variant, ctx->s_frame.crop.width,
+ ctx->s_frame.crop.height, cr->c.width,
+ cr->c.height, ctx->gsc_ctrls.rotate->val,
+ ctx->out_path);
+ }
+ if (ret) {
+ gsc_err("Out of scaler range");
+ return -EINVAL;
+ }
+ }
+
+ f->crop.left = cr->c.left;
+ f->crop.top = cr->c.top;
+ f->crop.width = cr->c.width;
+ f->crop.height = cr->c.height;
+
+ gsc_ctx_state_lock_set(GSC_PARAMS, ctx);
+
+ return 0;
+}
+
+static const struct v4l2_ioctl_ops gsc_m2m_ioctl_ops = {
+ .vidioc_querycap = gsc_m2m_querycap,
+
+ .vidioc_enum_fmt_vid_cap_mplane = gsc_m2m_enum_fmt_mplane,
+ .vidioc_enum_fmt_vid_out_mplane = gsc_m2m_enum_fmt_mplane,
+
+ .vidioc_g_fmt_vid_cap_mplane = gsc_m2m_g_fmt_mplane,
+ .vidioc_g_fmt_vid_out_mplane = gsc_m2m_g_fmt_mplane,
+
+ .vidioc_try_fmt_vid_cap_mplane = gsc_m2m_try_fmt_mplane,
+ .vidioc_try_fmt_vid_out_mplane = gsc_m2m_try_fmt_mplane,
+
+ .vidioc_s_fmt_vid_cap_mplane = gsc_m2m_s_fmt_mplane,
+ .vidioc_s_fmt_vid_out_mplane = gsc_m2m_s_fmt_mplane,
+
+ .vidioc_reqbufs = gsc_m2m_reqbufs,
+ .vidioc_querybuf = gsc_m2m_querybuf,
+
+ .vidioc_qbuf = gsc_m2m_qbuf,
+ .vidioc_dqbuf = gsc_m2m_dqbuf,
+
+ .vidioc_streamon = gsc_m2m_streamon,
+ .vidioc_streamoff = gsc_m2m_streamoff,
+
+ .vidioc_g_crop = gsc_m2m_g_crop,
+ .vidioc_s_crop = gsc_m2m_s_crop,
+ .vidioc_cropcap = gsc_m2m_cropcap
+
+};
+
+static int queue_init(void *priv, struct vb2_queue *src_vq,
+ struct vb2_queue *dst_vq)
+{
+ struct gsc_ctx *ctx = priv;
+ int ret;
+
+ memset(src_vq, 0, sizeof(*src_vq));
+ src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+ src_vq->io_modes = VB2_MMAP | VB2_USERPTR;
+ src_vq->drv_priv = ctx;
+ src_vq->ops = &gsc_m2m_qops;
+ src_vq->mem_ops = &vb2_dma_contig_memops;
+ src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+
+ ret = vb2_queue_init(src_vq);
+ if (ret)
+ return ret;
+
+ memset(dst_vq, 0, sizeof(*dst_vq));
+ dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+ dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
+ dst_vq->drv_priv = ctx;
+ dst_vq->ops = &gsc_m2m_qops;
+ dst_vq->mem_ops = &vb2_dma_contig_memops;
+ dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+
+ return vb2_queue_init(dst_vq);
+}
+
+static int gsc_m2m_open(struct file *file)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_ctx *ctx = NULL;
+ int ret;
+
+ gsc_dbg("pid: %d, state: 0x%lx", task_pid_nr(current), gsc->state);
+
+ if (gsc_out_opened(gsc) || gsc_cap_opened(gsc))
+ return -EBUSY;
+
+ ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ v4l2_fh_init(&ctx->fh, gsc->m2m.vfd);
+ ret = gsc_ctrls_create(ctx);
+ if (ret)
+ goto error_fh;
+
+ /* Use separate control handler per file handle */
+ ctx->fh.ctrl_handler = &ctx->ctrl_handler;
+ file->private_data = &ctx->fh;
+ v4l2_fh_add(&ctx->fh);
+
+ ctx->gsc_dev = gsc;
+ /* Default color format */
+ ctx->s_frame.fmt = get_format(0);
+ ctx->d_frame.fmt = get_format(0);
+ /* Setup the device context for mem2mem mode. */
+ ctx->state |= GSC_CTX_M2M;
+ ctx->flags = 0;
+ ctx->in_path = GSC_DMA;
+ ctx->out_path = GSC_DMA;
+ spin_lock_init(&ctx->slock);
+
+ ctx->m2m_ctx = v4l2_m2m_ctx_init(gsc->m2m.m2m_dev, ctx, queue_init);
+ if (IS_ERR(ctx->m2m_ctx)) {
+ gsc_err("Failed to initialize m2m context");
+ ret = PTR_ERR(ctx->m2m_ctx);
+ goto error_fh;
+ }
+
+ if (gsc->m2m.refcnt++ == 0)
+ set_bit(ST_M2M_OPEN, &gsc->state);
+
+ gsc_dbg("gsc m2m driver is opened, ctx(0x%p)", ctx);
+ return 0;
+
+error_fh:
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+ kfree(ctx);
+ return ret;
+}
+
+static int gsc_m2m_release(struct file *file)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(file->private_data);
+ struct gsc_dev *gsc = ctx->gsc_dev;
+
+ gsc_dbg("pid: %d, state: 0x%lx, refcnt= %d",
+ task_pid_nr(current), gsc->state, gsc->m2m.refcnt);
+
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
+ gsc_ctrls_delete(ctx);
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+
+ if (--gsc->m2m.refcnt <= 0)
+ clear_bit(ST_M2M_OPEN, &gsc->state);
+ kfree(ctx);
+ return 0;
+}
+
+static unsigned int gsc_m2m_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(file->private_data);
+
+ return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
+}
+
+static int gsc_m2m_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct gsc_ctx *ctx = fh_to_ctx(file->private_data);
+
+ return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
+}
+static const struct v4l2_file_operations gsc_m2m_fops = {
+ .owner = THIS_MODULE,
+ .open = gsc_m2m_open,
+ .release = gsc_m2m_release,
+ .poll = gsc_m2m_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = gsc_m2m_mmap,
+};
+
+static struct v4l2_m2m_ops gsc_m2m_ops = {
+ .device_run = gsc_m2m_device_run,
+ .job_abort = gsc_m2m_job_abort,
+};
+
+int gsc_register_m2m_device(struct gsc_dev *gsc)
+{
+ struct video_device *vfd;
+ struct platform_device *pdev;
+ int ret = 0;
+
+ if (!gsc)
+ return -ENODEV;
+
+ pdev = gsc->pdev;
+
+ vfd = video_device_alloc();
+ if (!vfd) {
+ dev_err(&pdev->dev, "Failed to allocate video device\n");
+ return -ENOMEM;
+ }
+
+ vfd->fops = &gsc_m2m_fops;
+ vfd->ioctl_ops = &gsc_m2m_ioctl_ops;
+ vfd->release = video_device_release;
+ vfd->lock = &gsc->lock;
+ snprintf(vfd->name, sizeof(vfd->name), "%s:m2m", dev_name(&pdev->dev));
+
+ video_set_drvdata(vfd, gsc);
+
+ gsc->m2m.vfd = vfd;
+ gsc->m2m.m2m_dev = v4l2_m2m_init(&gsc_m2m_ops);
+ if (IS_ERR(gsc->m2m.m2m_dev)) {
+ dev_err(&pdev->dev, "failed to initialize v4l2-m2m device\n");
+ ret = PTR_ERR(gsc->m2m.m2m_dev);
+ goto err_m2m_r1;
+ }
+
+ ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "%s(): failed to register video device\n", __func__);
+ goto err_m2m_r2;
+ }
+
+ gsc_dbg("gsc m2m driver registered as /dev/video%d", vfd->num);
+
+ return 0;
+
+err_m2m_r2:
+ v4l2_m2m_release(gsc->m2m.m2m_dev);
+err_m2m_r1:
+ video_device_release(gsc->m2m.vfd);
+
+ return ret;
+}
+
+void gsc_unregister_m2m_device(struct gsc_dev *gsc)
+{
+ if (gsc)
+ v4l2_m2m_release(gsc->m2m.m2m_dev);
+}
--- /dev/null
+/* linux/drivers/media/video/exynos/gsc/gsc-output.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Samsung EXYNOS5 SoC series G-scaler driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, 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/workqueue.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/string.h>
+#include <linux/delay.h>
+#include <media/v4l2-ioctl.h>
+
+#include "gsc-core.h"
+
+int gsc_out_hw_reset_off(struct gsc_dev *gsc)
+{
+ int ret;
+
+ mdelay(1);
+ gsc_hw_set_sw_reset(gsc);
+ ret = gsc_wait_reset(gsc);
+ if (ret < 0) {
+ gsc_err("gscaler s/w reset timeout");
+ return ret;
+ }
+ gsc_pixelasync_sw_reset(gsc);
+ gsc_disp_fifo_sw_reset(gsc);
+ gsc_hw_enable_control(gsc, false);
+ ret = gsc_wait_stop(gsc);
+ if (ret < 0) {
+ gsc_err("gscaler stop timeout");
+ return ret;
+ }
+
+ return 0;
+}
+
+int gsc_out_hw_set(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ int ret = 0;
+
+ ret = gsc_set_scaler_info(ctx);
+ if (ret) {
+ gsc_err("Scaler setup error");
+ return ret;
+ }
+
+ gsc_hw_set_frm_done_irq_mask(gsc, false);
+ gsc_hw_set_gsc_irq_enable(gsc, true);
+
+ gsc_hw_set_input_path(ctx);
+ gsc_hw_set_in_size(ctx);
+ gsc_hw_set_in_image_format(ctx);
+
+ gsc_hw_set_output_path(ctx);
+ gsc_hw_set_out_size(ctx);
+ gsc_hw_set_out_image_format(ctx);
+
+ gsc_hw_set_prescaler(ctx);
+ gsc_hw_set_mainscaler(ctx);
+ gsc_hw_set_rotation(ctx);
+ gsc_hw_set_global_alpha(ctx);
+ gsc_hw_set_input_buf_mask_all(gsc);
+
+ return 0;
+}
+
+static void gsc_subdev_try_crop(struct gsc_dev *gsc, struct v4l2_rect *cr)
+{
+ struct gsc_variant *variant = gsc->variant;
+ u32 max_w, max_h, min_w, min_h;
+ u32 tmp_w, tmp_h;
+
+ if (gsc->out.ctx->gsc_ctrls.rotate->val == 90 ||
+ gsc->out.ctx->gsc_ctrls.rotate->val == 270) {
+ max_w = variant->pix_max->target_rot_en_w;
+ max_h = variant->pix_max->target_rot_en_h;
+ min_w = variant->pix_min->target_rot_en_w;
+ min_h = variant->pix_min->target_rot_en_h;
+ tmp_w = cr->height;
+ tmp_h = cr->width;
+ } else {
+ max_w = variant->pix_max->target_rot_dis_w;
+ max_h = variant->pix_max->target_rot_dis_h;
+ min_w = variant->pix_min->target_rot_dis_w;
+ min_h = variant->pix_min->target_rot_dis_h;
+ tmp_w = cr->width;
+ tmp_h = cr->height;
+ }
+
+ gsc_dbg("min_w: %d, min_h: %d, max_w: %d, max_h = %d",
+ min_w, min_h, max_w, max_h);
+
+ v4l_bound_align_image(&tmp_w, min_w, max_w, 0,
+ &tmp_h, min_h, max_h, 0, 0);
+
+ if (gsc->out.ctx->gsc_ctrls.rotate->val == 90 ||
+ gsc->out.ctx->gsc_ctrls.rotate->val == 270)
+ gsc_check_crop_change(tmp_h, tmp_w, &cr->width, &cr->height);
+ else
+ gsc_check_crop_change(tmp_w, tmp_h, &cr->width, &cr->height);
+
+ gsc_dbg("Aligned l:%d, t:%d, w:%d, h:%d", cr->left, cr->top,
+ cr->width, cr->height);
+}
+
+static int gsc_subdev_get_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *fmt)
+{
+ struct gsc_dev *gsc = entity_data_to_gsc(v4l2_get_subdevdata(sd));
+ struct gsc_ctx *ctx = gsc->out.ctx;
+ struct v4l2_mbus_framefmt *mf = &fmt->format;
+ struct gsc_frame *f;
+
+ if (fmt->pad == GSC_PAD_SINK) {
+ gsc_err("Sink pad get_fmt is not supported");
+ return 0;
+ }
+
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ fmt->format = *v4l2_subdev_get_try_format(fh, fmt->pad);
+ return 0;
+ }
+
+ f = &ctx->d_frame;
+ mf->code = f->fmt->mbus_code;
+ mf->width = f->f_width;
+ mf->height = f->f_height;
+ mf->colorspace = V4L2_COLORSPACE_JPEG;
+
+ return 0;
+}
+
+static int gsc_subdev_set_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_format *fmt)
+{
+ struct gsc_dev *gsc = entity_data_to_gsc(v4l2_get_subdevdata(sd));
+ struct v4l2_mbus_framefmt *mf;
+ struct gsc_ctx *ctx = gsc->out.ctx;
+ struct gsc_frame *f;
+
+ gsc_dbg("pad%d: code: 0x%x, %dx%d",
+ fmt->pad, fmt->format.code, fmt->format.width, fmt->format.height);
+
+ if (fmt->pad == GSC_PAD_SINK) {
+ gsc_err("Sink pad set_fmt is not supported");
+ return 0;
+ }
+
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ mf = v4l2_subdev_get_try_format(fh, fmt->pad);
+ mf->width = fmt->format.width;
+ mf->height = fmt->format.height;
+ mf->code = fmt->format.code;
+ mf->colorspace = V4L2_COLORSPACE_JPEG;
+ } else {
+ f = &ctx->d_frame;
+ gsc_set_frame_size(f, fmt->format.width, fmt->format.height);
+ f->fmt = find_fmt(NULL, &fmt->format.code, 0);
+ ctx->state |= GSC_DST_FMT;
+ }
+
+ return 0;
+}
+
+static int gsc_subdev_get_crop(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_crop *crop)
+{
+ struct gsc_dev *gsc = entity_data_to_gsc(v4l2_get_subdevdata(sd));
+ struct gsc_ctx *ctx = gsc->out.ctx;
+ struct v4l2_rect *r = &crop->rect;
+ struct gsc_frame *f;
+
+ if (crop->pad == GSC_PAD_SINK) {
+ gsc_err("Sink pad get_crop is not supported");
+ return 0;
+ }
+
+ if (crop->which == V4L2_SUBDEV_FORMAT_TRY) {
+ crop->rect = *v4l2_subdev_get_try_crop(fh, crop->pad);
+ return 0;
+ }
+
+ f = &ctx->d_frame;
+ r->left = f->crop.left;
+ r->top = f->crop.top;
+ r->width = f->crop.width;
+ r->height = f->crop.height;
+
+ gsc_dbg("f:%p, pad%d: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d",
+ f, crop->pad, r->left, r->top, r->width, r->height,
+ f->f_width, f->f_height);
+
+ return 0;
+}
+
+static int gsc_subdev_set_crop(struct v4l2_subdev *sd,
+ struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_crop *crop)
+{
+ struct gsc_dev *gsc = entity_data_to_gsc(v4l2_get_subdevdata(sd));
+ struct gsc_ctx *ctx = gsc->out.ctx;
+ struct v4l2_rect *r;
+ struct gsc_frame *f;
+
+ gsc_dbg("(%d,%d)/%dx%d", crop->rect.left, crop->rect.top, crop->rect.width, crop->rect.height);
+
+ if (crop->pad == GSC_PAD_SINK) {
+ gsc_err("Sink pad set_fmt is not supported\n");
+ return 0;
+ }
+
+ if (crop->which == V4L2_SUBDEV_FORMAT_TRY) {
+ r = v4l2_subdev_get_try_crop(fh, crop->pad);
+ r->left = crop->rect.left;
+ r->top = crop->rect.top;
+ r->width = crop->rect.width;
+ r->height = crop->rect.height;
+ } else {
+ f = &ctx->d_frame;
+ f->crop.left = crop->rect.left;
+ f->crop.top = crop->rect.top;
+ f->crop.width = crop->rect.width;
+ f->crop.height = crop->rect.height;
+ }
+
+ gsc_dbg("pad%d: (%d,%d)/%dx%d", crop->pad, crop->rect.left, crop->rect.top,
+ crop->rect.width, crop->rect.height);
+
+ return 0;
+}
+
+static int gsc_subdev_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct gsc_dev *gsc = entity_data_to_gsc(v4l2_get_subdevdata(sd));
+ int ret;
+
+ if (enable) {
+ pm_runtime_get_sync(&gsc->pdev->dev);
+ ret = gsc_out_hw_set(gsc->out.ctx);
+ if (ret) {
+ gsc_err("GSC H/W setting is failed");
+ return -EINVAL;
+ }
+ } else {
+ INIT_LIST_HEAD(&gsc->out.active_buf_q);
+ clear_bit(ST_OUTPUT_STREAMON, &gsc->state);
+ pm_runtime_put_sync(&gsc->pdev->dev);
+ }
+
+ return 0;
+}
+
+static struct v4l2_subdev_pad_ops gsc_subdev_pad_ops = {
+ .get_fmt = gsc_subdev_get_fmt,
+ .set_fmt = gsc_subdev_set_fmt,
+ .get_crop = gsc_subdev_get_crop,
+ .set_crop = gsc_subdev_set_crop,
+};
+
+static struct v4l2_subdev_video_ops gsc_subdev_video_ops = {
+ .s_stream = gsc_subdev_s_stream,
+};
+
+static struct v4l2_subdev_ops gsc_subdev_ops = {
+ .pad = &gsc_subdev_pad_ops,
+ .video = &gsc_subdev_video_ops,
+};
+
+static int gsc_out_power_off(struct v4l2_subdev *sd)
+{
+ struct gsc_dev *gsc = entity_data_to_gsc(v4l2_get_subdevdata(sd));
+ int ret;
+
+ ret = gsc_out_hw_reset_off(gsc);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct exynos_media_ops gsc_out_link_callback = {
+ .power_off = gsc_out_power_off,
+};
+
+/*
+ * The video node ioctl operations
+ */
+static int gsc_output_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ strncpy(cap->driver, gsc->pdev->name, sizeof(cap->driver) - 1);
+ strncpy(cap->card, gsc->pdev->name, sizeof(cap->card) - 1);
+ cap->bus_info[0] = 0;
+ cap->capabilities = V4L2_CAP_STREAMING |
+ V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OUTPUT_MPLANE;
+
+ return 0;
+}
+
+static int gsc_output_enum_fmt_mplane(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ return gsc_enum_fmt_mplane(f);
+}
+
+static int gsc_output_try_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ if (!is_output(f->type)) {
+ gsc_err("Not supported buffer type");
+ return -EINVAL;
+ }
+
+ return gsc_try_fmt_mplane(gsc->out.ctx, f);
+}
+
+static int gsc_output_s_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_ctx *ctx = gsc->out.ctx;
+ struct gsc_frame *frame;
+ struct v4l2_pix_format_mplane *pix;
+ int i, ret = 0;
+
+ ret = gsc_output_try_fmt_mplane(file, fh, f);
+ if (ret) {
+ gsc_err("Invalid argument");
+ return ret;
+ }
+
+ if (vb2_is_streaming(&gsc->out.vbq)) {
+ gsc_err("queue (%d) busy", f->type);
+ return -EBUSY;
+ }
+
+ frame = &ctx->s_frame;
+
+ pix = &f->fmt.pix_mp;
+ frame->fmt = find_fmt(&pix->pixelformat, NULL, 0);
+ if (!frame->fmt) {
+ gsc_err("Not supported pixel format");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < frame->fmt->num_planes; i++)
+ frame->payload[i] = pix->plane_fmt[i].sizeimage;
+
+ gsc_set_frame_size(frame, pix->width, pix->height);
+
+ ctx->state |= GSC_SRC_FMT;
+
+ gsc_dbg("f_w: %d, f_h: %d", frame->f_width, frame->f_height);
+
+ return 0;
+}
+
+static int gsc_output_g_fmt_mplane(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_ctx *ctx = gsc->out.ctx;
+
+ if (!is_output(f->type)) {
+ gsc_err("Not supported buffer type");
+ return -EINVAL;
+ }
+
+ return gsc_g_fmt_mplane(ctx, f);
+}
+
+static int gsc_output_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *reqbufs)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_output_device *out = &gsc->out;
+ struct gsc_frame *frame;
+ int ret;
+
+ if (reqbufs->count > gsc->variant->in_buf_cnt) {
+ gsc_err("Requested count exceeds maximun count of input buffer");
+ return -EINVAL;
+ } else if (reqbufs->count == 0)
+ gsc_ctx_state_lock_clear(GSC_SRC_FMT | GSC_DST_FMT,
+ out->ctx);
+
+ frame = ctx_get_frame(out->ctx, reqbufs->type);
+
+ ret = vb2_reqbufs(&out->vbq, reqbufs);
+ if (ret)
+ return ret;
+ out->req_cnt = reqbufs->count;
+
+ return ret;
+}
+
+static int gsc_output_querybuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_output_device *out = &gsc->out;
+
+ return vb2_querybuf(&out->vbq, buf);
+}
+
+static int gsc_output_streamon(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_output_device *out = &gsc->out;
+ struct media_pad *sink_pad;
+ int ret;
+
+ sink_pad = media_entity_remote_source(&out->sd_pads[GSC_PAD_SOURCE]);
+ if (IS_ERR(sink_pad)) {
+ gsc_err("No sink pad conncted with a gscaler source pad");
+ return PTR_ERR(sink_pad);
+ }
+
+ ret = gsc_out_link_validate(&out->sd_pads[GSC_PAD_SOURCE], sink_pad);
+ if (ret) {
+ gsc_err("Output link validation is failed");
+ return ret;
+ }
+
+ media_entity_pipeline_start(&out->vfd->entity, gsc->pipeline.pipe);
+
+ return vb2_streamon(&gsc->out.vbq, type);
+}
+
+static int gsc_output_streamoff(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ return vb2_streamoff(&gsc->out.vbq, type);
+}
+
+static int gsc_output_qbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_output_device *out = &gsc->out;
+
+ return vb2_qbuf(&out->vbq, buf);
+}
+
+static int gsc_output_dqbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ return vb2_dqbuf(&gsc->out.vbq, buf,
+ file->f_flags & O_NONBLOCK);
+}
+
+static int gsc_output_cropcap(struct file *file, void *fh,
+ struct v4l2_cropcap *cr)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_ctx *ctx = gsc->out.ctx;
+
+ if (!is_output(cr->type)) {
+ gsc_err("Not supported buffer type");
+ return -EINVAL;
+ }
+
+ cr->bounds.left = 0;
+ cr->bounds.top = 0;
+ cr->bounds.width = ctx->s_frame.f_width;
+ cr->bounds.height = ctx->s_frame.f_height;
+ cr->defrect = cr->bounds;
+
+ return 0;
+
+}
+
+static int gsc_output_g_crop(struct file *file, void *fh,
+ struct v4l2_crop *cr)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ if (!is_output(cr->type)) {
+ gsc_err("Not supported buffer type");
+ return -EINVAL;
+ }
+
+ return gsc_g_crop(gsc->out.ctx, cr);
+}
+
+static int gsc_output_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ struct gsc_ctx *ctx = gsc->out.ctx;
+ struct gsc_variant *variant = gsc->variant;
+ struct gsc_frame *f;
+ unsigned int mask = GSC_DST_FMT | GSC_SRC_FMT;
+ int ret;
+
+ if (!is_output(cr->type)) {
+ gsc_err("Not supported buffer type");
+ return -EINVAL;
+ }
+
+ ret = gsc_try_crop(ctx, cr);
+ if (ret)
+ return ret;
+
+ f = &ctx->s_frame;
+
+ /* Check to see if scaling ratio is within supported range */
+ if ((ctx->state & (GSC_DST_FMT | GSC_SRC_FMT)) == mask) {
+ ret = gsc_check_scaler_ratio(variant, f->crop.width,
+ f->crop.height, ctx->d_frame.crop.width,
+ ctx->d_frame.crop.height,
+ ctx->gsc_ctrls.rotate->val, ctx->out_path);
+ if (ret) {
+ gsc_err("Out of scaler range");
+ return -EINVAL;
+ }
+ gsc_subdev_try_crop(gsc, &ctx->d_frame.crop);
+ }
+
+ f->crop.left = cr->c.left;
+ f->crop.top = cr->c.top;
+ f->crop.width = cr->c.width;
+ f->crop.height = cr->c.height;
+
+ return 0;
+}
+
+static const struct v4l2_ioctl_ops gsc_output_ioctl_ops = {
+ .vidioc_querycap = gsc_output_querycap,
+ .vidioc_enum_fmt_vid_out_mplane = gsc_output_enum_fmt_mplane,
+
+ .vidioc_try_fmt_vid_out_mplane = gsc_output_try_fmt_mplane,
+ .vidioc_s_fmt_vid_out_mplane = gsc_output_s_fmt_mplane,
+ .vidioc_g_fmt_vid_out_mplane = gsc_output_g_fmt_mplane,
+
+ .vidioc_reqbufs = gsc_output_reqbufs,
+ .vidioc_querybuf = gsc_output_querybuf,
+
+ .vidioc_qbuf = gsc_output_qbuf,
+ .vidioc_dqbuf = gsc_output_dqbuf,
+
+ .vidioc_streamon = gsc_output_streamon,
+ .vidioc_streamoff = gsc_output_streamoff,
+
+ .vidioc_g_crop = gsc_output_g_crop,
+ .vidioc_s_crop = gsc_output_s_crop,
+ .vidioc_cropcap = gsc_output_cropcap,
+};
+
+static int gsc_out_video_s_stream(struct gsc_dev *gsc, int enable)
+{
+ struct gsc_output_device *out = &gsc->out;
+ struct media_pad *sink_pad;
+ struct v4l2_subdev *sd;
+ int ret = 0;
+
+ sink_pad = media_entity_remote_source(&out->vd_pad);
+ if (IS_ERR(sink_pad)) {
+ gsc_err("No sink pad conncted with a gscaler video source pad");
+ return PTR_ERR(sink_pad);
+ }
+ sd = media_entity_to_v4l2_subdev(sink_pad->entity);
+ ret = v4l2_subdev_call(sd, video, s_stream, enable);
+ if (ret)
+ gsc_err("G-Scaler subdev s_stream[%d] failed", enable);
+
+ return ret;
+}
+
+static int gsc_out_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct gsc_ctx *ctx = q->drv_priv;
+ struct gsc_dev *gsc = ctx->gsc_dev;
+
+ return gsc_out_video_s_stream(gsc, 1);
+}
+
+static int gsc_out_stop_streaming(struct vb2_queue *q)
+{
+ struct gsc_ctx *ctx = q->drv_priv;
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ int ret = 0;
+
+ ret = gsc_pipeline_s_stream(gsc, false);
+ if (ret)
+ return ret;
+
+ if (ctx->out_path == GSC_FIMD) {
+ gsc_hw_enable_control(gsc, false);
+ ret = gsc_wait_stop(gsc);
+ if (ret < 0)
+ return ret;
+ }
+ gsc_hw_set_input_buf_mask_all(gsc);
+
+ /* TODO: Add gscaler clock off function */
+ ret = gsc_out_video_s_stream(gsc, 0);
+ if (ret) {
+ gsc_err("G-Scaler video s_stream off failed");
+ return ret;
+ }
+ media_entity_pipeline_stop(&gsc->out.vfd->entity);
+
+ return ret;
+}
+
+static int gsc_out_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
+ unsigned int *num_buffers, unsigned int *num_planes,
+ unsigned int sizes[], void *allocators[])
+{
+ struct gsc_ctx *ctx = vq->drv_priv;
+ struct gsc_fmt *ffmt = ctx->s_frame.fmt;
+ int i;
+
+ if (IS_ERR(ffmt)) {
+ gsc_err("Invalid source format");
+ return PTR_ERR(ffmt);
+ }
+
+ *num_planes = ffmt->num_planes;
+
+ for (i = 0; i < ffmt->num_planes; i++) {
+ sizes[i] = get_plane_size(&ctx->s_frame, i);
+ allocators[i] = ctx->gsc_dev->alloc_ctx;
+ }
+
+ return 0;
+}
+
+static int gsc_out_buffer_prepare(struct vb2_buffer *vb)
+{
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct gsc_ctx *ctx = vq->drv_priv;
+
+ if (!ctx->s_frame.fmt || !is_output(vq->type)) {
+ gsc_err("Invalid argument");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int gsc_out_set_in_addr(struct gsc_dev *gsc, struct gsc_ctx *ctx,
+ struct gsc_input_buf *buf, int index)
+{
+ int ret;
+
+ ret = gsc_prepare_addr(ctx, &buf->vb, &ctx->s_frame, &ctx->s_frame.addr);
+ if (ret) {
+ gsc_err("Fail to prepare G-Scaler address");
+ return -EINVAL;
+ }
+ gsc_hw_set_input_addr(gsc, &ctx->s_frame.addr, index);
+ active_queue_push(&gsc->out, buf, gsc);
+ buf->idx = index;
+
+ return 0;
+}
+
+static void gsc_out_buffer_queue(struct vb2_buffer *vb)
+{
+ struct gsc_input_buf *buf
+ = container_of(vb, struct gsc_input_buf, vb);
+ struct vb2_queue *q = vb->vb2_queue;
+ struct gsc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct gsc_dev *gsc = ctx->gsc_dev;
+ int ret;
+
+ if (gsc->out.req_cnt >= atomic_read(&q->queued_count)) {
+ ret = gsc_out_set_in_addr(gsc, ctx, buf, vb->v4l2_buf.index);
+ if (ret) {
+ gsc_err("Failed to prepare G-Scaler address");
+ return;
+ }
+ gsc_hw_set_input_buf_masking(gsc, vb->v4l2_buf.index, false);
+ } else {
+ gsc_err("All requested buffers have been queued already");
+ return;
+ }
+
+ if (!test_and_set_bit(ST_OUTPUT_STREAMON, &gsc->state)) {
+ gsc_disp_fifo_sw_reset(gsc);
+ gsc_pixelasync_sw_reset(gsc);
+ gsc_hw_enable_control(gsc, true);
+ ret = gsc_wait_operating(gsc);
+ if (ret < 0) {
+ gsc_err("wait operation timeout");
+ return;
+ }
+ gsc_pipeline_s_stream(gsc, true);
+ }
+}
+
+static struct vb2_ops gsc_output_qops = {
+ .queue_setup = gsc_out_queue_setup,
+ .buf_prepare = gsc_out_buffer_prepare,
+ .buf_queue = gsc_out_buffer_queue,
+ .wait_prepare = gsc_unlock,
+ .wait_finish = gsc_lock,
+ .start_streaming = gsc_out_start_streaming,
+ .stop_streaming = gsc_out_stop_streaming,
+};
+
+static int gsc_out_link_setup(struct media_entity *entity,
+ const struct media_pad *local,
+ const struct media_pad *remote, u32 flags)
+{
+ if (media_entity_type(entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+ return 0;
+
+ if (local->flags == MEDIA_PAD_FL_SOURCE) {
+ struct gsc_dev *gsc = entity_to_gsc(entity);
+ struct v4l2_subdev *sd;
+ if (flags & MEDIA_LNK_FL_ENABLED) {
+ if (gsc->pipeline.disp == NULL) {
+ /* Gscaler 0 --> Winwow 0, Gscaler 1 --> Window 1,
+ Gscaler 2 --> Window 2, Gscaler 3 --> Window 2 */
+ char name[FIMD_NAME_SIZE];
+ sprintf(name, "%s%d", FIMD_ENTITY_NAME, get_win_num(gsc));
+ gsc_hw_set_local_dst(gsc->id, true);
+ sd = media_entity_to_v4l2_subdev(remote->entity);
+ gsc->pipeline.disp = sd;
+ if (!strcmp(sd->name, name))
+ gsc->out.ctx->out_path = GSC_FIMD;
+ else
+ gsc->out.ctx->out_path = GSC_MIXER;
+ } else
+ gsc_err("G-Scaler source pad was linked already");
+ } else if (!(flags & ~MEDIA_LNK_FL_ENABLED)) {
+ if (gsc->pipeline.disp != NULL) {
+ gsc_hw_set_local_dst(gsc->id, false);
+ gsc->pipeline.disp = NULL;
+ gsc->out.ctx->out_path = 0;
+ } else
+ gsc_err("G-Scaler source pad was unlinked already");
+ }
+ }
+
+ return 0;
+}
+
+static const struct media_entity_operations gsc_out_media_ops = {
+ .link_setup = gsc_out_link_setup,
+};
+
+int gsc_output_ctrls_create(struct gsc_dev *gsc)
+{
+ int ret;
+
+ ret = gsc_ctrls_create(gsc->out.ctx);
+ if (ret) {
+ gsc_err("Failed to create controls of G-Scaler");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int gsc_output_open(struct file *file)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+ int ret = v4l2_fh_open(file);
+
+ if (ret)
+ return ret;
+
+ gsc_dbg("pid: %d, state: 0x%lx", task_pid_nr(current), gsc->state);
+
+ /* Return if the corresponding mem2mem/output/capture video node
+ is already opened. */
+ if (gsc_m2m_opened(gsc) || gsc_cap_opened(gsc) || gsc_out_opened(gsc)) {
+ gsc_err("G-Scaler%d has been opened already", gsc->id);
+ return -EBUSY;
+ }
+
+ if (WARN_ON(gsc->out.ctx == NULL)) {
+ gsc_err("G-Scaler output context is NULL");
+ return -ENXIO;
+ }
+
+ set_bit(ST_OUTPUT_OPEN, &gsc->state);
+
+ ret = gsc_ctrls_create(gsc->out.ctx);
+ if (ret < 0) {
+ v4l2_fh_release(file);
+ clear_bit(ST_OUTPUT_OPEN, &gsc->state);
+ return ret;
+ }
+
+ return ret;
+}
+
+static int gsc_output_close(struct file *file)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ gsc_dbg("pid: %d, state: 0x%lx", task_pid_nr(current), gsc->state);
+
+ clear_bit(ST_OUTPUT_OPEN, &gsc->state);
+ vb2_queue_release(&gsc->out.vbq);
+ gsc_ctrls_delete(gsc->out.ctx);
+ v4l2_fh_release(file);
+
+ return 0;
+}
+
+static unsigned int gsc_output_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ return vb2_poll(&gsc->out.vbq, file, wait);
+}
+
+static int gsc_output_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct gsc_dev *gsc = video_drvdata(file);
+
+ return vb2_mmap(&gsc->out.vbq, vma);
+}
+
+static const struct v4l2_file_operations gsc_output_fops = {
+ .owner = THIS_MODULE,
+ .open = gsc_output_open,
+ .release = gsc_output_close,
+ .poll = gsc_output_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = gsc_output_mmap,
+};
+
+static int gsc_create_link(struct gsc_dev *gsc)
+{
+ struct media_entity *source, *sink;
+ int ret;
+
+ source = &gsc->out.vfd->entity;
+ sink = &gsc->out.sd->entity;
+ ret = media_entity_create_link(source, 0, sink, GSC_PAD_SINK,
+ MEDIA_LNK_FL_IMMUTABLE |
+ MEDIA_LNK_FL_ENABLED);
+ if (ret) {
+ gsc_err("Failed to create link between G-Scaler vfd and subdev");
+ return ret;
+ }
+
+ return 0;
+}
+
+
+static int gsc_create_subdev(struct gsc_dev *gsc)
+{
+ struct v4l2_subdev *sd;
+ int ret;
+
+ sd = kzalloc(sizeof(*sd), GFP_KERNEL);
+ if (!sd)
+ return -ENOMEM;
+
+ v4l2_subdev_init(sd, &gsc_subdev_ops);
+ sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE;
+ snprintf(sd->name, sizeof(sd->name), "%s.%d", GSC_SUBDEV_NAME, gsc->id);
+
+ gsc->out.sd_pads[GSC_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
+ gsc->out.sd_pads[GSC_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_init(&sd->entity, GSC_PADS_NUM,
+ gsc->out.sd_pads, 0);
+ if (ret) {
+ gsc_err("Failed to initialize the G-Scaler media entity");
+ goto error;
+ }
+
+ sd->entity.ops = &gsc_out_media_ops;
+ ret = v4l2_device_register_subdev(&gsc->mdev[MDEV_OUTPUT]->v4l2_dev, sd);
+ if (ret) {
+ media_entity_cleanup(&sd->entity);
+ goto error;
+ }
+ gsc->mdev[MDEV_OUTPUT]->gsc_sd[gsc->id] = sd;
+ gsc_dbg("gsc_sd[%d] = 0x%08x\n", gsc->id,
+ (u32)gsc->mdev[MDEV_OUTPUT]->gsc_sd[gsc->id]);
+ gsc->out.sd = sd;
+ gsc->md_data.media_ops = &gsc_out_link_callback;
+ v4l2_set_subdevdata(sd, &gsc->md_data);
+
+ return 0;
+error:
+ kfree(sd);
+ return ret;
+}
+
+int gsc_register_output_device(struct gsc_dev *gsc)
+{
+ struct video_device *vfd;
+ struct gsc_output_device *gsc_out;
+ struct gsc_ctx *ctx;
+ struct vb2_queue *q;
+ int ret = -ENOMEM;
+
+ ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ctx->gsc_dev = gsc;
+ ctx->s_frame.fmt = get_format(GSC_OUT_DEF_SRC);
+ ctx->d_frame.fmt = get_format(GSC_OUT_DEF_DST);
+ ctx->in_path = GSC_DMA;
+ ctx->state = GSC_CTX_OUTPUT;
+
+ vfd = video_device_alloc();
+ if (!vfd) {
+ gsc_err("Failed to allocate video device");
+ goto err_ctx_alloc;
+ }
+
+ snprintf(vfd->name, sizeof(vfd->name), "%s.output",
+ dev_name(&gsc->pdev->dev));
+
+
+ vfd->fops = &gsc_output_fops;
+ vfd->ioctl_ops = &gsc_output_ioctl_ops;
+ vfd->v4l2_dev = &gsc->mdev[MDEV_OUTPUT]->v4l2_dev;
+ vfd->release = video_device_release;
+ vfd->lock = &gsc->lock;
+ video_set_drvdata(vfd, gsc);
+
+ gsc_out = &gsc->out;
+ gsc_out->vfd = vfd;
+
+ INIT_LIST_HEAD(&gsc_out->active_buf_q);
+ spin_lock_init(&ctx->slock);
+ gsc_out->ctx = ctx;
+
+ q = &gsc->out.vbq;
+ memset(q, 0, sizeof(*q));
+ q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+ q->io_modes = VB2_MMAP | VB2_USERPTR;
+ q->drv_priv = gsc->out.ctx;
+ q->ops = &gsc_output_qops;
+ q->mem_ops = &vb2_dma_contig_memops;
+ q->buf_struct_size = sizeof(struct gsc_input_buf);
+
+ vb2_queue_init(q);
+
+ ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
+ if (ret) {
+ gsc_err("Failed to register video device");
+ goto err_ent;
+ }
+
+ gsc->out.vd_pad.flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_init(&vfd->entity, 1, &gsc->out.vd_pad, 0);
+ if (ret)
+ goto err_ent;
+
+ ret = gsc_create_subdev(gsc);
+ if (ret)
+ goto err_sd_reg;
+
+ ret = gsc_create_link(gsc);
+ if (ret)
+ goto err_sd_reg;
+
+ vfd->ctrl_handler = &ctx->ctrl_handler;
+ gsc_dbg("gsc output driver registered as /dev/video%d, ctx(0x%08x)",
+ vfd->num, (u32)ctx);
+ return 0;
+
+err_sd_reg:
+ media_entity_cleanup(&vfd->entity);
+err_ent:
+ video_device_release(vfd);
+err_ctx_alloc:
+ kfree(ctx);
+ return ret;
+}
+
+static void gsc_destroy_subdev(struct gsc_dev *gsc)
+{
+ struct v4l2_subdev *sd = gsc->out.sd;
+
+ if (!sd)
+ return;
+ media_entity_cleanup(&sd->entity);
+ v4l2_device_unregister_subdev(sd);
+ kfree(sd);
+ sd = NULL;
+}
+
+void gsc_unregister_output_device(struct gsc_dev *gsc)
+{
+ struct video_device *vfd = gsc->out.vfd;
+
+ if (vfd) {
+ media_entity_cleanup(&vfd->entity);
+ /* Can also be called if video device was
+ not registered */
+ video_unregister_device(vfd);
+ }
+ gsc_destroy_subdev(gsc);
+ kfree(gsc->out.ctx);
+ gsc->out.ctx = NULL;
+}
--- /dev/null
+/* linux/drivers/media/video/exynos/gsc/gsc-regs.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Samsung EXYNOS5 SoC series G-scaler driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 2 of the License,
+ * or (at your option) any later version.
+ */
+
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <mach/map.h>
+#include "gsc-core.h"
+
+void gsc_hw_set_sw_reset(struct gsc_dev *dev)
+{
+ u32 cfg = 0;
+
+ cfg |= GSC_SW_RESET_SRESET;
+ writel(cfg, dev->regs + GSC_SW_RESET);
+}
+
+void gsc_disp_fifo_sw_reset(struct gsc_dev *dev)
+{
+ u32 cfg = readl(SYSREG_DISP1BLK_CFG);
+ /* DISPBLK1 FIFO S/W reset sequence
+ set FIFORST_DISP1 as 0 then, set FIFORST_DISP1 as 1 again */
+ cfg &= ~FIFORST_DISP1;
+ writel(cfg, SYSREG_DISP1BLK_CFG);
+ cfg |= FIFORST_DISP1;
+ writel(cfg, SYSREG_DISP1BLK_CFG);
+}
+
+void gsc_pixelasync_sw_reset(struct gsc_dev *dev)
+{
+ u32 cfg = readl(SYSREG_GSCBLK_CFG0);
+ /* GSCBLK Pixel asyncy FIFO S/W reset sequence
+ set PXLASYNC_SW_RESET as 0 then, set PXLASYNC_SW_RESET as 1 again */
+ cfg &= ~GSC_PXLASYNC_RST(dev->id);
+ writel(cfg, SYSREG_GSCBLK_CFG0);
+ cfg |= GSC_PXLASYNC_RST(dev->id);
+ writel(cfg, SYSREG_GSCBLK_CFG0);
+}
+
+int gsc_wait_reset(struct gsc_dev *dev)
+{
+ unsigned long timeo = jiffies + 10; /* timeout of 50ms */
+ u32 cfg;
+
+ while (time_before(jiffies, timeo)) {
+ cfg = readl(dev->regs + GSC_SW_RESET);
+ if (!cfg)
+ return 0;
+ usleep_range(10, 20);
+ }
+ gsc_dbg("wait time : %d ms", jiffies_to_msecs(jiffies - timeo + 20));
+
+ return -EBUSY;
+}
+
+int gsc_wait_operating(struct gsc_dev *dev)
+{
+ unsigned long timeo = jiffies + 10; /* timeout of 50ms */
+ u32 cfg;
+
+ while (time_before(jiffies, timeo)) {
+ cfg = readl(dev->regs + GSC_ENABLE);
+ if ((cfg & GSC_ENABLE_OP_STATUS) == GSC_ENABLE_OP_STATUS)
+ return 0;
+ usleep_range(10, 20);
+ }
+ gsc_dbg("wait time : %d ms", jiffies_to_msecs(jiffies - timeo + 20));
+
+ return -EBUSY;
+}
+
+int gsc_wait_stop(struct gsc_dev *dev)
+{
+ unsigned long timeo = jiffies + 10; /* timeout of 50ms */
+ u32 cfg;
+
+ while (time_before(jiffies, timeo)) {
+ cfg = readl(dev->regs + GSC_ENABLE);
+ if (!(cfg & GSC_ENABLE_OP_STATUS))
+ return 0;
+ usleep_range(10, 20);
+ }
+ gsc_dbg("wait time : %d ms", jiffies_to_msecs(jiffies - timeo + 20));
+
+ return -EBUSY;
+}
+
+
+void gsc_hw_set_one_frm_mode(struct gsc_dev *dev, bool mask)
+{
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_ENABLE);
+ if (mask)
+ cfg |= GSC_ENABLE_ON_CLEAR;
+ else
+ cfg &= ~GSC_ENABLE_ON_CLEAR;
+ writel(cfg, dev->regs + GSC_ENABLE);
+}
+
+int gsc_hw_get_input_buf_mask_status(struct gsc_dev *dev)
+{
+ u32 cfg, status, bits = 0;
+
+ cfg = readl(dev->regs + GSC_IN_BASE_ADDR_Y_MASK);
+ status = cfg & GSC_IN_BASE_ADDR_MASK;
+ while (status) {
+ status = status & (status - 1);
+ bits++;
+ }
+ return bits;
+}
+
+int gsc_hw_get_done_input_buf_index(struct gsc_dev *dev)
+{
+ u32 cfg, curr_index, i;
+
+ cfg = readl(dev->regs + GSC_IN_BASE_ADDR_Y_MASK);
+ curr_index = GSC_IN_CURR_GET_INDEX(cfg);
+ for (i = curr_index; i > 1; i--) {
+ if (cfg ^ (1 << (i - 2)))
+ return i - 2;
+ }
+
+ for (i = dev->variant->in_buf_cnt; i > curr_index; i--) {
+ if (cfg ^ (1 << (i - 1)))
+ return i - 1;
+ }
+
+ return curr_index - 1;
+}
+
+int gsc_hw_get_done_output_buf_index(struct gsc_dev *dev)
+{
+ u32 cfg, curr_index, done_buf_index;
+ unsigned long state_mask;
+ u32 reqbufs_cnt = dev->cap.reqbufs_cnt;
+
+ cfg = readl(dev->regs + GSC_OUT_BASE_ADDR_Y_MASK);
+ curr_index = GSC_OUT_CURR_GET_INDEX(cfg);
+ gsc_dbg("curr_index : %d", curr_index);
+ state_mask = cfg & GSC_OUT_BASE_ADDR_MASK;
+
+ done_buf_index = (curr_index == 0) ? reqbufs_cnt - 1 : curr_index - 1;
+
+ do {
+ /* Test done_buf_index whether masking or not */
+ if (test_bit(done_buf_index, &state_mask))
+ done_buf_index = (done_buf_index == 0) ?
+ reqbufs_cnt - 1 : done_buf_index - 1;
+ else
+ return done_buf_index;
+ } while (done_buf_index != curr_index);
+
+ return -EBUSY;
+}
+
+void gsc_hw_set_frm_done_irq_mask(struct gsc_dev *dev, bool mask)
+{
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_IRQ);
+ if (mask)
+ cfg |= GSC_IRQ_FRMDONE_MASK;
+ else
+ cfg &= ~GSC_IRQ_FRMDONE_MASK;
+ writel(cfg, dev->regs + GSC_IRQ);
+}
+
+void gsc_hw_set_overflow_irq_mask(struct gsc_dev *dev, bool mask)
+{
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_IRQ);
+ if (mask)
+ cfg |= GSC_IRQ_OR_MASK;
+ else
+ cfg &= ~GSC_IRQ_OR_MASK;
+ writel(cfg, dev->regs + GSC_IRQ);
+}
+
+void gsc_hw_set_gsc_irq_enable(struct gsc_dev *dev, bool mask)
+{
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_IRQ);
+ if (mask)
+ cfg |= GSC_IRQ_ENABLE;
+ else
+ cfg &= ~GSC_IRQ_ENABLE;
+ writel(cfg, dev->regs + GSC_IRQ);
+}
+
+void gsc_hw_set_input_buf_mask_all(struct gsc_dev *dev)
+{
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_IN_BASE_ADDR_Y_MASK);
+ cfg |= GSC_IN_BASE_ADDR_MASK;
+ cfg |= GSC_IN_BASE_ADDR_PINGPONG(dev->variant->in_buf_cnt);
+
+ writel(cfg, dev->regs + GSC_IN_BASE_ADDR_Y_MASK);
+ writel(cfg, dev->regs + GSC_IN_BASE_ADDR_CB_MASK);
+ writel(cfg, dev->regs + GSC_IN_BASE_ADDR_CR_MASK);
+}
+
+void gsc_hw_set_output_buf_mask_all(struct gsc_dev *dev)
+{
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_OUT_BASE_ADDR_Y_MASK);
+ cfg |= GSC_OUT_BASE_ADDR_MASK;
+ cfg |= GSC_OUT_BASE_ADDR_PINGPONG(dev->variant->out_buf_cnt);
+
+ writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_Y_MASK);
+ writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_CB_MASK);
+ writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_CR_MASK);
+}
+
+void gsc_hw_set_input_buf_masking(struct gsc_dev *dev, u32 shift,
+ bool enable)
+{
+ u32 cfg = readl(dev->regs + GSC_IN_BASE_ADDR_Y_MASK);
+ u32 mask = 1 << shift;
+
+ cfg &= (~mask);
+ cfg |= enable << shift;
+
+ writel(cfg, dev->regs + GSC_IN_BASE_ADDR_Y_MASK);
+ writel(cfg, dev->regs + GSC_IN_BASE_ADDR_CB_MASK);
+ writel(cfg, dev->regs + GSC_IN_BASE_ADDR_CR_MASK);
+}
+
+void gsc_hw_set_output_buf_masking(struct gsc_dev *dev, u32 shift,
+ bool enable)
+{
+ u32 cfg = readl(dev->regs + GSC_OUT_BASE_ADDR_Y_MASK);
+ u32 mask = 1 << shift;
+
+ cfg &= (~mask);
+ cfg |= enable << shift;
+
+ writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_Y_MASK);
+ writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_CB_MASK);
+ writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_CR_MASK);
+}
+
+int gsc_hw_get_nr_unmask_bits(struct gsc_dev *dev)
+{
+ u32 bits = 0;
+ u32 mask_bits = readl(dev->regs + GSC_OUT_BASE_ADDR_Y_MASK);
+ mask_bits &= GSC_OUT_BASE_ADDR_MASK;
+
+ while (mask_bits) {
+ mask_bits = mask_bits & (mask_bits - 1);
+ bits++;
+ }
+ bits = 16 - bits;
+
+ return bits;
+}
+
+void gsc_hw_set_input_addr(struct gsc_dev *dev, struct gsc_addr *addr,
+ int index)
+{
+ gsc_dbg("src_buf[%d]: 0x%X, cb: 0x%X, cr: 0x%X", index,
+ addr->y, addr->cb, addr->cr);
+ writel(addr->y, dev->regs + GSC_IN_BASE_ADDR_Y(index));
+ writel(addr->cb, dev->regs + GSC_IN_BASE_ADDR_CB(index));
+ writel(addr->cr, dev->regs + GSC_IN_BASE_ADDR_CR(index));
+
+}
+
+void gsc_hw_set_output_addr(struct gsc_dev *dev,
+ struct gsc_addr *addr, int index)
+{
+ gsc_dbg("dst_buf[%d]: 0x%X, cb: 0x%X, cr: 0x%X",
+ index, addr->y, addr->cb, addr->cr);
+ writel(addr->y, dev->regs + GSC_OUT_BASE_ADDR_Y(index));
+ writel(addr->cb, dev->regs + GSC_OUT_BASE_ADDR_CB(index));
+ writel(addr->cr, dev->regs + GSC_OUT_BASE_ADDR_CR(index));
+}
+
+void gsc_hw_set_input_path(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+
+ u32 cfg = readl(dev->regs + GSC_IN_CON);
+ cfg &= ~(GSC_IN_PATH_MASK | GSC_IN_LOCAL_SEL_MASK);
+
+ if (ctx->in_path == GSC_DMA) {
+ cfg |= GSC_IN_PATH_MEMORY;
+ } else {
+ cfg |= GSC_IN_PATH_LOCAL;
+ if (ctx->in_path == GSC_WRITEBACK) {
+ cfg |= GSC_IN_LOCAL_FIMD_WB;
+ } else {
+ struct v4l2_subdev *sd = dev->pipeline.sensor;
+ struct gsc_sensor_info *s_info =
+ v4l2_get_subdev_hostdata(sd);
+ if (s_info->pdata->cam_port == CAM_PORT_A)
+ cfg |= GSC_IN_LOCAL_CAM0;
+ else
+ cfg |= GSC_IN_LOCAL_CAM1;
+ }
+ }
+
+ writel(cfg, dev->regs + GSC_IN_CON);
+}
+
+void gsc_hw_set_in_size(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+ struct gsc_frame *frame = &ctx->s_frame;
+ u32 cfg;
+
+ /* Set input pixel offset */
+ cfg = GSC_SRCIMG_OFFSET_X(frame->crop.left);
+ cfg |= GSC_SRCIMG_OFFSET_Y(frame->crop.top);
+ writel(cfg, dev->regs + GSC_SRCIMG_OFFSET);
+
+ /* Set input original size */
+ cfg = GSC_SRCIMG_WIDTH(frame->f_width);
+ cfg |= GSC_SRCIMG_HEIGHT(frame->f_height);
+ writel(cfg, dev->regs + GSC_SRCIMG_SIZE);
+
+ /* Set input cropped size */
+ cfg = GSC_CROPPED_WIDTH(frame->crop.width);
+ cfg |= GSC_CROPPED_HEIGHT(frame->crop.height);
+ writel(cfg, dev->regs + GSC_CROPPED_SIZE);
+}
+
+void gsc_hw_set_in_image_rgb(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+ struct gsc_frame *frame = &ctx->s_frame;
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_IN_CON);
+ if (ctx->gsc_ctrls.csc_eq->val) {
+ if (ctx->gsc_ctrls.csc_range->val)
+ cfg |= GSC_IN_RGB_HD_WIDE;
+ else
+ cfg |= GSC_IN_RGB_HD_NARROW;
+ } else {
+ if (ctx->gsc_ctrls.csc_range->val)
+ cfg |= GSC_IN_RGB_SD_WIDE;
+ else
+ cfg |= GSC_IN_RGB_SD_NARROW;
+ }
+
+ if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB565X)
+ cfg |= GSC_IN_RGB565;
+ else if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB32)
+ cfg |= GSC_IN_XRGB8888;
+
+ writel(cfg, dev->regs + GSC_IN_CON);
+}
+
+void gsc_hw_set_in_image_format(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+ struct gsc_frame *frame = &ctx->s_frame;
+ u32 i, depth = 0;
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_IN_CON);
+ cfg &= ~(GSC_IN_RGB_TYPE_MASK | GSC_IN_YUV422_1P_ORDER_MASK |
+ GSC_IN_CHROMA_ORDER_MASK | GSC_IN_FORMAT_MASK |
+ GSC_IN_TILE_TYPE_MASK | GSC_IN_TILE_MODE);
+ writel(cfg, dev->regs + GSC_IN_CON);
+
+ if (is_rgb(frame->fmt->color)) {
+ gsc_hw_set_in_image_rgb(ctx);
+ return;
+ }
+ for (i = 0; i < frame->fmt->num_planes; i++)
+ depth += frame->fmt->depth[i];
+
+ switch (frame->fmt->nr_comp) {
+ case 1:
+ cfg |= GSC_IN_YUV422_1P;
+ if (frame->fmt->yorder == GSC_LSB_Y)
+ cfg |= GSC_IN_YUV422_1P_ORDER_LSB_Y;
+ else
+ cfg |= GSC_IN_YUV422_1P_OEDER_LSB_C;
+ if (frame->fmt->corder == GSC_CBCR)
+ cfg |= GSC_IN_CHROMA_ORDER_CBCR;
+ else
+ cfg |= GSC_IN_CHROMA_ORDER_CRCB;
+ break;
+ case 2:
+ if (depth == 12)
+ cfg |= GSC_IN_YUV420_2P;
+ else
+ cfg |= GSC_IN_YUV422_2P;
+ if (frame->fmt->corder == GSC_CBCR)
+ cfg |= GSC_IN_CHROMA_ORDER_CBCR;
+ else
+ cfg |= GSC_IN_CHROMA_ORDER_CRCB;
+ break;
+ case 3:
+ if (depth == 12)
+ cfg |= GSC_IN_YUV420_3P;
+ else
+ cfg |= GSC_IN_YUV422_3P;
+ break;
+ };
+
+ writel(cfg, dev->regs + GSC_IN_CON);
+}
+
+void gsc_hw_set_output_path(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+
+ u32 cfg = readl(dev->regs + GSC_OUT_CON);
+ cfg &= ~GSC_OUT_PATH_MASK;
+
+ if (ctx->out_path == GSC_DMA)
+ cfg |= GSC_OUT_PATH_MEMORY;
+ else
+ cfg |= GSC_OUT_PATH_LOCAL;
+
+
+ writel(cfg, dev->regs + GSC_OUT_CON);
+}
+
+void gsc_hw_set_out_size(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+ struct gsc_frame *frame = &ctx->d_frame;
+ u32 cfg;
+
+ /* Set output original size */
+ if (ctx->out_path == GSC_DMA) {
+ cfg = GSC_DSTIMG_OFFSET_X(frame->crop.left);
+ cfg |= GSC_DSTIMG_OFFSET_Y(frame->crop.top);
+ writel(cfg, dev->regs + GSC_DSTIMG_OFFSET);
+
+ cfg = GSC_DSTIMG_WIDTH(frame->f_width);
+ cfg |= GSC_DSTIMG_HEIGHT(frame->f_height);
+ writel(cfg, dev->regs + GSC_DSTIMG_SIZE);
+ }
+
+ /* Set output scaled size */
+ if (ctx->gsc_ctrls.rotate->val == 90 ||
+ ctx->gsc_ctrls.rotate->val == 270) {
+ cfg = GSC_SCALED_WIDTH(frame->crop.height);
+ cfg |= GSC_SCALED_HEIGHT(frame->crop.width);
+ } else {
+ cfg = GSC_SCALED_WIDTH(frame->crop.width);
+ cfg |= GSC_SCALED_HEIGHT(frame->crop.height);
+ }
+ writel(cfg, dev->regs + GSC_SCALED_SIZE);
+}
+
+void gsc_hw_set_out_image_rgb(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+ struct gsc_frame *frame = &ctx->d_frame;
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_OUT_CON);
+ if (ctx->gsc_ctrls.csc_eq->val) {
+ if (ctx->gsc_ctrls.csc_range->val)
+ cfg |= GSC_OUT_RGB_HD_WIDE;
+ else
+ cfg |= GSC_OUT_RGB_HD_NARROW;
+ } else {
+ if (ctx->gsc_ctrls.csc_range->val)
+ cfg |= GSC_OUT_RGB_SD_WIDE;
+ else
+ cfg |= GSC_OUT_RGB_SD_NARROW;
+ }
+
+ if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB565X)
+ cfg |= GSC_OUT_RGB565;
+ else if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB32)
+ cfg |= GSC_OUT_XRGB8888;
+
+ writel(cfg, dev->regs + GSC_OUT_CON);
+}
+
+void gsc_hw_set_out_image_format(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+ struct gsc_frame *frame = &ctx->d_frame;
+ u32 i, depth = 0;
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_OUT_CON);
+ cfg &= ~(GSC_OUT_RGB_TYPE_MASK | GSC_OUT_YUV422_1P_ORDER_MASK |
+ GSC_OUT_CHROMA_ORDER_MASK | GSC_OUT_FORMAT_MASK |
+ GSC_OUT_TILE_TYPE_MASK | GSC_OUT_TILE_MODE);
+ writel(cfg, dev->regs + GSC_OUT_CON);
+
+ if (is_rgb(frame->fmt->color)) {
+ gsc_hw_set_out_image_rgb(ctx);
+ return;
+ }
+
+ if (ctx->out_path != GSC_DMA) {
+ cfg |= GSC_OUT_YUV444;
+ goto end_set;
+ }
+
+ for (i = 0; i < frame->fmt->num_planes; i++)
+ depth += frame->fmt->depth[i];
+
+ switch (frame->fmt->nr_comp) {
+ case 1:
+ cfg |= GSC_OUT_YUV422_1P;
+ if (frame->fmt->yorder == GSC_LSB_Y)
+ cfg |= GSC_OUT_YUV422_1P_ORDER_LSB_Y;
+ else
+ cfg |= GSC_OUT_YUV422_1P_OEDER_LSB_C;
+ if (frame->fmt->corder == GSC_CBCR)
+ cfg |= GSC_OUT_CHROMA_ORDER_CBCR;
+ else
+ cfg |= GSC_OUT_CHROMA_ORDER_CRCB;
+ break;
+ case 2:
+ if (depth == 12)
+ cfg |= GSC_OUT_YUV420_2P;
+ else
+ cfg |= GSC_OUT_YUV422_2P;
+ if (frame->fmt->corder == GSC_CBCR)
+ cfg |= GSC_OUT_CHROMA_ORDER_CBCR;
+ else
+ cfg |= GSC_OUT_CHROMA_ORDER_CRCB;
+ break;
+ case 3:
+ cfg |= GSC_OUT_YUV420_3P;
+ break;
+ };
+
+end_set:
+ writel(cfg, dev->regs + GSC_OUT_CON);
+}
+
+void gsc_hw_set_prescaler(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+ struct gsc_scaler *sc = &ctx->scaler;
+ u32 cfg;
+
+ cfg = GSC_PRESC_SHFACTOR(sc->pre_shfactor);
+ cfg |= GSC_PRESC_H_RATIO(sc->pre_hratio);
+ cfg |= GSC_PRESC_V_RATIO(sc->pre_vratio);
+ writel(cfg, dev->regs + GSC_PRE_SCALE_RATIO);
+}
+
+void gsc_hw_set_mainscaler(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+ struct gsc_scaler *sc = &ctx->scaler;
+ u32 cfg;
+
+ cfg = GSC_MAIN_H_RATIO_VALUE(sc->main_hratio);
+ writel(cfg, dev->regs + GSC_MAIN_H_RATIO);
+
+ cfg = GSC_MAIN_V_RATIO_VALUE(sc->main_vratio);
+ writel(cfg, dev->regs + GSC_MAIN_V_RATIO);
+}
+
+void gsc_hw_set_rotation(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_IN_CON);
+ cfg &= ~GSC_IN_ROT_MASK;
+
+ switch (ctx->gsc_ctrls.rotate->val) {
+ case 270:
+ cfg |= GSC_IN_ROT_270;
+ break;
+ case 180:
+ cfg |= GSC_IN_ROT_180;
+ break;
+ case 90:
+ if (ctx->gsc_ctrls.hflip->val)
+ cfg |= GSC_IN_ROT_90_XFLIP;
+ else if (ctx->gsc_ctrls.vflip->val)
+ cfg |= GSC_IN_ROT_90_YFLIP;
+ else
+ cfg |= GSC_IN_ROT_90;
+ break;
+ case 0:
+ if (ctx->gsc_ctrls.hflip->val)
+ cfg |= GSC_IN_ROT_XFLIP;
+ else if (ctx->gsc_ctrls.vflip->val)
+ cfg |= GSC_IN_ROT_YFLIP;
+ }
+
+ writel(cfg, dev->regs + GSC_IN_CON);
+}
+
+void gsc_hw_set_global_alpha(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+ struct gsc_frame *frame = &ctx->d_frame;
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_OUT_CON);
+ cfg &= ~GSC_OUT_GLOBAL_ALPHA_MASK;
+
+ if (!is_rgb(frame->fmt->color)) {
+ gsc_dbg("Not a RGB format");
+ return;
+ }
+
+ cfg |= GSC_OUT_GLOBAL_ALPHA(ctx->gsc_ctrls.global_alpha->val);
+ writel(cfg, dev->regs + GSC_OUT_CON);
+}
+
+void gsc_hw_set_sfr_update(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+ u32 cfg;
+
+ cfg = readl(dev->regs + GSC_ENABLE);
+ cfg |= GSC_ENABLE_SFR_UPDATE;
+ writel(cfg, dev->regs + GSC_ENABLE);
+}
+
+void gsc_hw_set_local_dst(int id, bool on)
+{
+ u32 cfg = readl(SYSREG_GSCBLK_CFG0);
+
+ if (on)
+ cfg |= GSC_OUT_DST_SEL(id);
+ else
+ cfg &= ~(GSC_OUT_DST_SEL(id));
+ writel(cfg, SYSREG_GSCBLK_CFG0);
+}
+
+void gsc_hw_set_sysreg_writeback(struct gsc_ctx *ctx)
+{
+ struct gsc_dev *dev = ctx->gsc_dev;
+
+ u32 cfg = readl(SYSREG_GSCBLK_CFG1);
+
+ cfg |= GSC_BLK_DISP1WB_DEST(dev->id);
+ cfg |= GSC_BLK_GSCL_WB_IN_SRC_SEL(dev->id);
+ cfg |= GSC_BLK_SW_RESET_WB_DEST(dev->id);
+
+ writel(cfg, SYSREG_GSCBLK_CFG1);
+}
+
+void gsc_hw_set_sysreg_camif(bool on)
+{
+ u32 cfg = readl(SYSREG_GSCBLK_CFG0);
+
+ if (on)
+ cfg |= GSC_PXLASYNC_CAMIF_TOP;
+ else
+ cfg &= ~(GSC_PXLASYNC_CAMIF_TOP);
+
+ writel(cfg, SYSREG_GSCBLK_CFG0);
+}
--- /dev/null
+/* linux/drivers/media/video/exynos/gsc/regs-gsc.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Register definition file for Samsung G-Scaler driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef REGS_GSC_H_
+#define REGS_GSC_H_
+
+/* SYSCON. GSCBLK_CFG */
+#include <plat/map-base.h>
+#define SYSREG_DISP1BLK_CFG (S3C_VA_SYS + 0x0214)
+#define FIFORST_DISP1 (1 << 23)
+#define SYSREG_GSCBLK_CFG0 (S3C_VA_SYS + 0x0220)
+#define GSC_OUT_DST_SEL(x) (1 << (8 + 2 * (x)))
+#define GSC_PXLASYNC_RST(x) (1 << (x))
+#define GSC_PXLASYNC_CAMIF_TOP (1 << 20)
+#define SYSREG_GSCBLK_CFG1 (S3C_VA_SYS + 0x0224)
+#define GSC_BLK_DISP1WB_DEST(x) (x << 10)
+#define GSC_BLK_SW_RESET_WB_DEST(x) (1 << (18 + x))
+#define GSC_BLK_GSCL_WB_IN_SRC_SEL(x) (1 << (2 * x))
+
+/* G-Scaler enable */
+#define GSC_ENABLE 0x00
+#define GSC_ENABLE_ON_CLEAR (1 << 4)
+#define GSC_ENABLE_QOS_ENABLE (1 << 3)
+#define GSC_ENABLE_OP_STATUS (1 << 2)
+#define GSC_ENABLE_SFR_UPDATE (1 << 1)
+#define GSC_ENABLE_ON (1 << 0)
+
+/* G-Scaler S/W reset */
+#define GSC_SW_RESET 0x04
+#define GSC_SW_RESET_SRESET (1 << 0)
+
+/* G-Scaler IRQ */
+#define GSC_IRQ 0x08
+#define GSC_IRQ_STATUS_OR_IRQ (1 << 17)
+#define GSC_IRQ_STATUS_OR_FRM_DONE (1 << 16)
+#define GSC_IRQ_OR_MASK (1 << 2)
+#define GSC_IRQ_FRMDONE_MASK (1 << 1)
+#define GSC_IRQ_ENABLE (1 << 0)
+
+/* G-Scaler input control */
+#define GSC_IN_CON 0x10
+#define GSC_IN_ROT_MASK (7 << 16)
+#define GSC_IN_ROT_270 (7 << 16)
+#define GSC_IN_ROT_90_YFLIP (6 << 16)
+#define GSC_IN_ROT_90_XFLIP (5 << 16)
+#define GSC_IN_ROT_90 (4 << 16)
+#define GSC_IN_ROT_180 (3 << 16)
+#define GSC_IN_ROT_YFLIP (2 << 16)
+#define GSC_IN_ROT_XFLIP (1 << 16)
+#define GSC_IN_RGB_TYPE_MASK (3 << 14)
+#define GSC_IN_RGB_HD_WIDE (3 << 14)
+#define GSC_IN_RGB_HD_NARROW (2 << 14)
+#define GSC_IN_RGB_SD_WIDE (1 << 14)
+#define GSC_IN_RGB_SD_NARROW (0 << 14)
+#define GSC_IN_YUV422_1P_ORDER_MASK (1 << 13)
+#define GSC_IN_YUV422_1P_ORDER_LSB_Y (0 << 13)
+#define GSC_IN_YUV422_1P_OEDER_LSB_C (1 << 13)
+#define GSC_IN_CHROMA_ORDER_MASK (1 << 12)
+#define GSC_IN_CHROMA_ORDER_CBCR (0 << 12)
+#define GSC_IN_CHROMA_ORDER_CRCB (1 << 12)
+#define GSC_IN_FORMAT_MASK (7 << 8)
+#define GSC_IN_XRGB8888 (0 << 8)
+#define GSC_IN_RGB565 (1 << 8)
+#define GSC_IN_YUV420_2P (2 << 8)
+#define GSC_IN_YUV420_3P (3 << 8)
+#define GSC_IN_YUV422_1P (4 << 8)
+#define GSC_IN_YUV422_2P (5 << 8)
+#define GSC_IN_YUV422_3P (6 << 8)
+#define GSC_IN_TILE_TYPE_MASK (1 << 4)
+#define GSC_IN_TILE_C_16x8 (0 << 4)
+#define GSC_IN_TILE_C_16x16 (1 << 4)
+#define GSC_IN_TILE_MODE (1 << 3)
+#define GSC_IN_LOCAL_SEL_MASK (3 << 1)
+#define GSC_IN_LOCAL_FIMD_WB (2 << 1)
+#define GSC_IN_LOCAL_CAM1 (1 << 1)
+#define GSC_IN_LOCAL_CAM0 (0 << 1)
+#define GSC_IN_PATH_MASK (1 << 0)
+#define GSC_IN_PATH_LOCAL (1 << 0)
+#define GSC_IN_PATH_MEMORY (0 << 0)
+
+/* G-Scaler source image size */
+#define GSC_SRCIMG_SIZE 0x14
+#define GSC_SRCIMG_HEIGHT_MASK (0x1fff << 16)
+#define GSC_SRCIMG_HEIGHT(x) ((x) << 16)
+#define GSC_SRCIMG_WIDTH_MASK (0x1fff << 0)
+#define GSC_SRCIMG_WIDTH(x) ((x) << 0)
+
+/* G-Scaler source image offset */
+#define GSC_SRCIMG_OFFSET 0x18
+#define GSC_SRCIMG_OFFSET_Y_MASK (0x1fff << 16)
+#define GSC_SRCIMG_OFFSET_Y(x) ((x) << 16)
+#define GSC_SRCIMG_OFFSET_X_MASK (0x1fff << 0)
+#define GSC_SRCIMG_OFFSET_X(x) ((x) << 0)
+
+/* G-Scaler cropped source image size */
+#define GSC_CROPPED_SIZE 0x1C
+#define GSC_CROPPED_HEIGHT_MASK (0x1fff << 16)
+#define GSC_CROPPED_HEIGHT(x) ((x) << 16)
+#define GSC_CROPPED_WIDTH_MASK (0x1fff << 0)
+#define GSC_CROPPED_WIDTH(x) ((x) << 0)
+
+/* G-Scaler output control */
+#define GSC_OUT_CON 0x20
+#define GSC_OUT_GLOBAL_ALPHA_MASK (0xff << 24)
+#define GSC_OUT_GLOBAL_ALPHA(x) ((x) << 24)
+#define GSC_OUT_RGB_TYPE_MASK (3 << 10)
+#define GSC_OUT_RGB_HD_NARROW (3 << 10)
+#define GSC_OUT_RGB_HD_WIDE (2 << 10)
+#define GSC_OUT_RGB_SD_NARROW (1 << 10)
+#define GSC_OUT_RGB_SD_WIDE (0 << 10)
+#define GSC_OUT_YUV422_1P_ORDER_MASK (1 << 9)
+#define GSC_OUT_YUV422_1P_ORDER_LSB_Y (0 << 9)
+#define GSC_OUT_YUV422_1P_OEDER_LSB_C (1 << 9)
+#define GSC_OUT_CHROMA_ORDER_MASK (1 << 8)
+#define GSC_OUT_CHROMA_ORDER_CBCR (0 << 8)
+#define GSC_OUT_CHROMA_ORDER_CRCB (1 << 8)
+#define GSC_OUT_FORMAT_MASK (7 << 4)
+#define GSC_OUT_XRGB8888 (0 << 4)
+#define GSC_OUT_RGB565 (1 << 4)
+#define GSC_OUT_YUV420_2P (2 << 4)
+#define GSC_OUT_YUV420_3P (3 << 4)
+#define GSC_OUT_YUV422_1P (4 << 4)
+#define GSC_OUT_YUV422_2P (5 << 4)
+#define GSC_OUT_YUV444 (7 << 4)
+#define GSC_OUT_TILE_TYPE_MASK (1 << 2)
+#define GSC_OUT_TILE_C_16x8 (0 << 2)
+#define GSC_OUT_TILE_C_16x16 (1 << 2)
+#define GSC_OUT_TILE_MODE (1 << 1)
+#define GSC_OUT_PATH_MASK (1 << 0)
+#define GSC_OUT_PATH_LOCAL (1 << 0)
+#define GSC_OUT_PATH_MEMORY (0 << 0)
+
+/* G-Scaler scaled destination image size */
+#define GSC_SCALED_SIZE 0x24
+#define GSC_SCALED_HEIGHT_MASK (0x1fff << 16)
+#define GSC_SCALED_HEIGHT(x) ((x) << 16)
+#define GSC_SCALED_WIDTH_MASK (0x1fff << 0)
+#define GSC_SCALED_WIDTH(x) ((x) << 0)
+
+/* G-Scaler pre scale ratio */
+#define GSC_PRE_SCALE_RATIO 0x28
+#define GSC_PRESC_SHFACTOR_MASK (7 << 28)
+#define GSC_PRESC_SHFACTOR(x) ((x) << 28)
+#define GSC_PRESC_V_RATIO_MASK (7 << 16)
+#define GSC_PRESC_V_RATIO(x) ((x) << 16)
+#define GSC_PRESC_H_RATIO_MASK (7 << 0)
+#define GSC_PRESC_H_RATIO(x) ((x) << 0)
+
+/* G-Scaler main scale horizontal ratio */
+#define GSC_MAIN_H_RATIO 0x2C
+#define GSC_MAIN_H_RATIO_MASK (0xfffff << 0)
+#define GSC_MAIN_H_RATIO_VALUE(x) ((x) << 0)
+
+/* G-Scaler main scale vertical ratio */
+#define GSC_MAIN_V_RATIO 0x30
+#define GSC_MAIN_V_RATIO_MASK (0xfffff << 0)
+#define GSC_MAIN_V_RATIO_VALUE(x) ((x) << 0)
+
+/* G-Scaler destination image size */
+#define GSC_DSTIMG_SIZE 0x40
+#define GSC_DSTIMG_HEIGHT_MASK (0x1fff << 16)
+#define GSC_DSTIMG_HEIGHT(x) ((x) << 16)
+#define GSC_DSTIMG_WIDTH_MASK (0x1fff << 0)
+#define GSC_DSTIMG_WIDTH(x) ((x) << 0)
+
+/* G-Scaler destination image offset */
+#define GSC_DSTIMG_OFFSET 0x44
+#define GSC_DSTIMG_OFFSET_Y_MASK (0x1fff << 16)
+#define GSC_DSTIMG_OFFSET_Y(x) ((x) << 16)
+#define GSC_DSTIMG_OFFSET_X_MASK (0x1fff << 0)
+#define GSC_DSTIMG_OFFSET_X(x) ((x) << 0)
+
+/* G-Scaler input y address mask */
+#define GSC_IN_BASE_ADDR_Y_MASK 0x4C
+/* G-Scaler input y base address */
+#define GSC_IN_BASE_ADDR_Y(n) (0x50 + (n) * 0x4)
+
+/* G-Scaler input cb address mask */
+#define GSC_IN_BASE_ADDR_CB_MASK 0x7C
+/* G-Scaler input cb base address */
+#define GSC_IN_BASE_ADDR_CB(n) (0x80 + (n) * 0x4)
+
+/* G-Scaler input cr address mask */
+#define GSC_IN_BASE_ADDR_CR_MASK 0xAC
+/* G-Scaler input cr base address */
+#define GSC_IN_BASE_ADDR_CR(n) (0xB0 + (n) * 0x4)
+
+/* G-Scaler input address mask */
+#define GSC_IN_CURR_ADDR_INDEX (0xf << 12)
+#define GSC_IN_CURR_GET_INDEX(x) ((x) >> 12)
+#define GSC_IN_BASE_ADDR_PINGPONG(x) ((x) << 8)
+#define GSC_IN_BASE_ADDR_MASK (0xff << 0)
+
+/* G-Scaler output y address mask */
+#define GSC_OUT_BASE_ADDR_Y_MASK 0x10C
+/* G-Scaler output y base address */
+#define GSC_OUT_BASE_ADDR_Y(n) (0x110 + (n) * 0x4)
+
+/* G-Scaler output cb address mask */
+#define GSC_OUT_BASE_ADDR_CB_MASK 0x15C
+/* G-Scaler output cb base address */
+#define GSC_OUT_BASE_ADDR_CB(n) (0x160 + (n) * 0x4)
+
+/* G-Scaler output cr address mask */
+#define GSC_OUT_BASE_ADDR_CR_MASK 0x1AC
+/* G-Scaler output cr base address */
+#define GSC_OUT_BASE_ADDR_CR(n) (0x1B0 + (n) * 0x4)
+
+/* G-Scaler output address mask */
+#define GSC_OUT_CURR_ADDR_INDEX (0xf << 24)
+#define GSC_OUT_CURR_GET_INDEX(x) ((x) >> 24)
+#define GSC_OUT_BASE_ADDR_PINGPONG(x) ((x) << 16)
+#define GSC_OUT_BASE_ADDR_MASK (0xffff << 0)
+
+#endif /* REGS_GSC_H_ */
--- /dev/null
+/* include/media/exynos_camera.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * The header file related to camera
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef EXYNOS_CAMERA_H_
+#define EXYNOS_CAMERA_H_
+
+#include <media/exynos_mc.h>
+
+enum cam_bus_type {
+ CAM_TYPE_ITU = 1,
+ CAM_TYPE_MIPI,
+};
+
+enum cam_port {
+ CAM_PORT_A,
+ CAM_PORT_B,
+};
+
+#define CAM_CLK_INV_PCLK (1 << 0)
+#define CAM_CLK_INV_VSYNC (1 << 1)
+#define CAM_CLK_INV_HREF (1 << 2)
+#define CAM_CLK_INV_HSYNC (1 << 3)
+
+struct i2c_board_info;
+
+/**
+ * struct exynos_isp_info - image sensor information required for host
+ * interface configuration.
+ *
+ * @board_info: pointer to I2C subdevice's board info
+ * @clk_frequency: frequency of the clock the host interface provides to sensor
+ * @bus_type: determines bus type, MIPI, ITU-R BT.601 etc.
+ * @csi_data_align: MIPI-CSI interface data alignment in bits
+ * @i2c_bus_num: i2c control bus id the sensor is attached to
+ * @mux_id: FIMC camera interface multiplexer index (separate for MIPI and ITU)
+ * @flags: flags defining bus signals polarity inversion (High by default)
+ * @use_cam: a means of used by GSCALER
+ */
+struct exynos_isp_info {
+ struct i2c_board_info *board_info;
+ unsigned long clk_frequency;
+ const char *cam_srclk_name;
+ const char *cam_clk_name;
+ enum cam_bus_type bus_type;
+ u16 csi_data_align;
+ u16 i2c_bus_num;
+ enum cam_port cam_port;
+ u16 flags;
+};
+#endif /* EXYNOS_CAMERA_H_ */
--- /dev/null
+/* include/media/exynos_gscaler.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Samsung EXYNOS SoC Gscaler driver header
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef EXYNOS_GSCALER_H_
+#define EXYNOS_GSCALER_H_
+
+#include <media/exynos_camera.h>
+
+/**
+ * struct exynos_platform_gscaler - camera host interface platform data
+ *
+ * @isp_info: properties of camera sensor required for host interface setup
+ */
+struct exynos_platform_gscaler {
+ struct exynos_isp_info *isp_info[MAX_CAMIF_CLIENTS];
+ u32 active_cam_index;
+ u32 num_clients;
+ u32 cam_preview:1;
+ u32 cam_camcording:1;
+};
+
+extern struct exynos_platform_gscaler exynos_gsc0_default_data;
+extern struct exynos_platform_gscaler exynos_gsc1_default_data;
+extern struct exynos_platform_gscaler exynos_gsc2_default_data;
+extern struct exynos_platform_gscaler exynos_gsc3_default_data;
+
+/**
+ * exynos5_gsc_set_parent_clock() = Exynos5 setup function for parent clock.
+ * @child: child clock used for gscaler
+ * @parent: parent clock used for gscaler
+ */
+int __init exynos5_gsc_set_parent_clock(const char *child, const char *parent);
+
+/**
+ * exynos5_gsc_set_clock_rate() = Exynos5 setup function for clock rate.
+ * @clk: name of clock used for gscaler
+ * @clk_rate: clock_rate for gscaler clock
+ */
+int __init exynos5_gsc_set_clock_rate(const char *clk, unsigned long clk_rate);
+#endif /* EXYNOS_GSCALER_H_ */
projects / cascardo / linux.git / commitdiff