new file mode 100644
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * Common FIMC devices definitions and helper functions
+ *
+ * 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 __PLAT_SAMSUNG_FIMC_H
+#define __PLAT_SAMSUNG_FIMC_H __FILE__
+
+#include <media/s3c_fimc.h>
+
+/*
+ * The maximum number of image sensors that can be multiplexed into single FIMC
+ */
+#define FIMC_MAX_CAM_SOURCES 2
+
+/**
+ * struct s3c_platform_fimc - camera host interface platform data
+ *
+ * @cam_info: properties of camera sensor required for host interface setup
+ */
+struct s3c_platform_fimc {
+ struct s3c_fimc_isp_info *isp_info[FIMC_MAX_CAM_SOURCES];
+};
+
+#endif /* __PLAT_SAMSUNG_FIMC_H */
@@ -1,3 +1,3 @@
obj-$(CONFIG_VIDEO_SAMSUNG_S5P_FIMC) := s5p-fimc.o
-s5p-fimc-y := fimc-core.o fimc-reg.o
+s5p-fimc-y := fimc-core.o fimc-reg.o fimc-capture.o
new file mode 100644
@@ -0,0 +1,922 @@
+/*
+ * Samsung S5P SoC series camera interface (camera capture) driver
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd
+ * Author: Sylwester Nawrocki, <s.nawrocki@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/bug.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/i2c.h>
+
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf-core.h>
+#include <media/videobuf-dma-contig.h>
+
+#include "fimc-core.h"
+
+static struct v4l2_subdev *fimc_subdev_register(struct fimc_dev *fimc,
+ struct s3c_fimc_isp_info *isp_info)
+{
+ struct i2c_adapter *i2c_adap;
+ struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+ struct v4l2_subdev *sd = NULL;
+
+ i2c_adap = i2c_get_adapter(isp_info->i2c_bus_num);
+ if (!i2c_adap)
+ return ERR_PTR(-ENOMEM);
+
+ sd = v4l2_i2c_new_subdev_board(&vid_cap->v4l2_dev, i2c_adap,
+ MODULE_NAME, isp_info->board_info, NULL);
+ if (!sd) {
+ v4l2_err(&vid_cap->v4l2_dev, "failed to acquire subdev\n");
+ return NULL;
+ }
+
+ v4l2_info(&vid_cap->v4l2_dev, "subdevice %s registered successfuly\n",
+ isp_info->board_info->type);
+
+ return sd;
+}
+
+static void fimc_subdev_unregister(struct fimc_dev *fimc)
+{
+ struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+ struct i2c_client *client;
+
+ if (vid_cap->input_index < 0)
+ return; /* Subdevice already released or not registered. */
+
+ if (vid_cap->sd) {
+ v4l2_device_unregister_subdev(vid_cap->sd);
+ client = v4l2_get_subdevdata(vid_cap->sd);
+ i2c_unregister_device(client);
+ i2c_put_adapter(client->adapter);
+ vid_cap->sd = NULL;
+ }
+
+ vid_cap->input_index = -1;
+}
+
+/**
+ * fimc_subdev_attach - attach v4l2_subdev to camera host interface
+ *
+ * @fimc: FIMC device information
+ * @index: index to the array of available subdevices,
+ * -1 for full array search or non negative value
+ * to select specific subdevice
+ */
+static int fimc_subdev_attach(struct fimc_dev *fimc, int index)
+{
+ struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+ struct s3c_platform_fimc *pdata = fimc->pdata;
+ struct s3c_fimc_isp_info *isp_info;
+ struct v4l2_subdev *sd;
+ int i;
+
+ for (i = 0; i < FIMC_MAX_CAM_SOURCES; ++i) {
+ isp_info = pdata->isp_info[i];
+
+ if (!isp_info || (index >= 0 && i != index))
+ continue;
+
+ sd = fimc_subdev_register(fimc, isp_info);
+ if (sd) {
+ vid_cap->sd = sd;
+ vid_cap->input_index = i;
+
+ return 0;
+ }
+ }
+
+ vid_cap->input_index = -1;
+ vid_cap->sd = NULL;
+ v4l2_err(&vid_cap->v4l2_dev, "fimc%d: sensor attach failed\n",
+ fimc->id);
+ return -ENODEV;
+}
+
+static int fimc_isp_subdev_init(struct fimc_dev *fimc, int index)
+{
+ struct s3c_fimc_isp_info *cam_inf;
+ int ret;
+
+ ret = fimc_subdev_attach(fimc, index);
+ if (ret)
+ return ret;
+
+ cam_inf = fimc->pdata->isp_info[fimc->vid_cap.input_index];
+ ret = fimc_hw_set_camera_polarity(fimc, cam_inf);
+ if (!ret) {
+ ret = v4l2_subdev_call(fimc->vid_cap.sd, core,
+ s_power, 1);
+ if (!ret)
+ return ret;
+ }
+
+ fimc_subdev_unregister(fimc);
+ err("ISP initialization failed: %d", ret);
+ return ret;
+}
+
+/*
+ * At least one buffer on the pending_buf_q queue is required.
+ * Locking: The caller holds fimc->slock spinlock.
+ */
+int fimc_vid_cap_buf_queue(struct fimc_dev *fimc,
+ struct fimc_vid_buffer *fimc_vb)
+{
+ struct fimc_vid_cap *cap = &fimc->vid_cap;
+ struct fimc_ctx *ctx = cap->ctx;
+ int ret = 0;
+
+ assert(fimc != NULL);
+ assert(fimc_vb != NULL);
+
+ ret = fimc_prepare_addr(ctx, fimc_vb, &ctx->d_frame,
+ &fimc_vb->paddr);
+ if (ret)
+ return ret;
+
+ if (test_bit(ST_CAPT_STREAM, &fimc->state)) {
+ fimc_pending_queue_add(cap, fimc_vb);
+ } else {
+ /* Setup the buffer directly for processing. */
+ int buf_id = (cap->reqbufs_count == 1) ? -1 : cap->buf_index;
+ fimc_hw_set_output_addr(fimc, &fimc_vb->paddr, buf_id);
+
+ fimc_vb->index = cap->buf_index;
+ active_queue_add(cap, fimc_vb);
+
+ if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
+ cap->buf_index = 0;
+ }
+ return ret;
+}
+
+static int fimc_stop_capture(struct fimc_dev *fimc)
+{
+ unsigned long flags;
+ struct fimc_vid_cap *cap;
+ int ret;
+
+ cap = &fimc->vid_cap;
+
+ if (!fimc_capture_active(fimc))
+ return 0;
+
+ spin_lock_irqsave(&fimc->slock, flags);
+ set_bit(ST_CAPT_SHUT, &fimc->state);
+ fimc_deactivate_capture(fimc);
+ spin_unlock_irqrestore(&fimc->slock, flags);
+
+ wait_event_timeout(fimc->irq_queue,
+ test_bit(ST_CAPT_SHUT, &fimc->state),
+ FIMC_SHUTDOWN_TIMEOUT);
+
+ ret = v4l2_subdev_call(cap->sd, video, s_stream, 0);
+ if (ret)
+ v4l2_err(&fimc->vid_cap.v4l2_dev, "s_stream(0) failed\n");
+
+ spin_lock_irqsave(&fimc->slock, flags);
+ fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_PEND |
+ 1 << ST_CAPT_STREAM);
+
+ fimc->vid_cap.active_buf_cnt = 0;
+ spin_unlock_irqrestore(&fimc->slock, flags);
+
+ dbg("state= 0x%lx", fimc->state);
+ return 0;
+}
+
+static int fimc_capture_open(struct file *file)
+{
+ struct fimc_dev *fimc = video_drvdata(file);
+ int ret = 0;
+
+ mutex_lock(&fimc->lock);
+
+ dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
+
+ if (++fimc->vid_cap.refcnt == 1) {
+ ret = fimc_isp_subdev_init(fimc, -1);
+ if (ret) {
+ fimc->vid_cap.refcnt--;
+ ret = -EIO;
+ } else {
+ file->private_data = fimc->vid_cap.ctx;
+ }
+ }
+
+ mutex_unlock(&fimc->lock);
+
+ return ret;
+}
+
+static int fimc_capture_close(struct file *file)
+{
+ struct fimc_dev *fimc = video_drvdata(file);
+
+ mutex_lock(&fimc->lock);
+ dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
+
+ fimc_stop_capture(fimc);
+
+ videobuf_stop(&fimc->vid_cap.vbq);
+ videobuf_mmap_free(&fimc->vid_cap.vbq);
+
+ if (--fimc->vid_cap.refcnt == 0) {
+ v4l2_err(&fimc->vid_cap.v4l2_dev, "releasing ISP\n");
+ v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0);
+ fimc_subdev_unregister(fimc);
+ }
+ mutex_unlock(&fimc->lock);
+
+ return 0;
+}
+
+static unsigned int fimc_capture_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ return POLLERR;
+}
+
+static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap;
+
+ return videobuf_mmap_mapper(&cap->vbq, vma);
+}
+
+/* video device file operations */
+static const struct v4l2_file_operations fimc_capture_fops = {
+ .owner = THIS_MODULE,
+ .open = fimc_capture_open,
+ .release = fimc_capture_close,
+ .poll = fimc_capture_poll,
+ .ioctl = video_ioctl2,
+ .mmap = fimc_capture_mmap,
+};
+
+static int vidioc_querycap_capture(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+
+ strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
+ strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
+ cap->bus_info[0] = 0;
+ cap->version = KERNEL_VERSION(1, 0, 0);
+ cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE;
+
+ return 0;
+}
+
+static int vidioc_g_fmt_capture(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_frame *frame = &ctx->s_frame;
+
+ mutex_lock(&ctx->fimc_dev->lock);
+
+ f->fmt.pix.width = frame->width;
+ f->fmt.pix.height = frame->height;
+ f->fmt.pix.field = V4L2_FIELD_NONE;
+ f->fmt.pix.pixelformat = frame->fmt->fourcc;
+
+ mutex_unlock(&ctx->fimc_dev->lock);
+ return 0;
+}
+
+static int vidioc_try_fmt_capture(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct samsung_fimc_variant *variant = fimc->variant;
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+ struct fimc_fmt *fmt;
+ u32 max_width, max_height;
+ u32 mod_x, mod_y;
+
+ fmt = find_format(f, FMT_FLAGS_M2M | FMT_FLAGS_CAM);
+ if (!fmt) {
+ v4l2_err(&fimc->vid_cap.v4l2_dev,
+ "Fourcc format (0x%08x) invalid.\n",
+ pix->pixelformat);
+ return -EINVAL;
+ }
+
+ if (pix->field == V4L2_FIELD_ANY)
+ pix->field = V4L2_FIELD_NONE;
+ else if (V4L2_FIELD_NONE != pix->field)
+ return -EINVAL;
+
+ max_width = fimc->variant->scaler_dis_w;
+ max_height = fimc->variant->scaler_dis_w;
+ mod_x = variant->min_out_pixsize;
+ mod_y = variant->min_out_pixsize;
+
+ if (pix->height > max_height)
+ pix->height = max_height;
+ if (pix->width > max_width)
+ pix->width = max_width;
+
+ if (tiled_fmt(fmt)) {
+ mod_x = 64; /* 64x32 tile */
+ mod_y = 32;
+ }
+
+ pix->width = (pix->width == 0) ? mod_x : ALIGN(pix->width, mod_x);
+ pix->height = (pix->height == 0) ? mod_y : ALIGN(pix->height, mod_y);
+
+ if (pix->bytesperline == 0 ||
+ pix->bytesperline * 8 / fmt->depth > pix->width)
+ pix->bytesperline = (pix->width * fmt->depth) >> 3;
+
+ if (pix->sizeimage == 0)
+ pix->sizeimage = pix->height * pix->bytesperline;
+
+ dbg("pix->bytesperline= %d, fmt->depth= %d",
+ pix->bytesperline, fmt->depth);
+
+ return 0;
+}
+
+/* Synchronize formats of the camera interface input and attached sensor. */
+static int sync_capture_fmt(struct fimc_ctx *ctx)
+{
+ struct fimc_frame *frame = &ctx->s_frame;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct v4l2_mbus_framefmt *fmt = &fimc->vid_cap.fmt;
+ int ret;
+
+ fmt->width = ctx->d_frame.o_width;
+ fmt->height = ctx->d_frame.o_height;
+
+ ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_mbus_fmt, fmt);
+ if (ret == -ENOIOCTLCMD) {
+ err("s_mbus_fmt failed");
+ return ret;
+ }
+ ret = v4l2_subdev_call(fimc->vid_cap.sd, video, g_mbus_fmt, fmt);
+ if (ret) {
+ err("g_mbus_fmt failed: %d", ret);
+ return ret;
+ }
+ dbg("w= %d, h= %d, code= %d", fmt->width, fmt->height, fmt->code);
+
+ frame->fmt = find_mbus_format(fmt, FMT_FLAGS_CAM);
+ if (!frame->fmt) {
+ err("fimc source format not found\n");
+ return -EINVAL;
+ }
+
+ frame->size = (fmt->width * fmt->height * frame->fmt->depth) >> 3;
+ frame->f_width = fmt->width;
+ frame->f_height = fmt->height;
+ frame->width = fmt->width;
+ frame->height = fmt->height;
+ frame->o_width = fmt->width;
+ frame->o_height = fmt->height;
+ frame->offs_h = 0;
+ frame->offs_v = 0;
+
+ return 0;
+}
+
+static int vidioc_s_fmt_capture(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct fimc_frame *frame;
+ struct v4l2_pix_format *pix;
+ int ret;
+
+ if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ ret = vidioc_try_fmt_capture(file, priv, f);
+ if (ret)
+ return ret;
+
+ mutex_lock(&fimc->lock);
+
+ if (fimc_capture_active(fimc)) {
+ ret = -EBUSY;
+ goto sf_unlock;
+ }
+
+ frame = &ctx->d_frame;
+
+ pix = &f->fmt.pix;
+ frame->fmt = find_format(f, FMT_FLAGS_M2M | FMT_FLAGS_CAM);
+ if (!frame->fmt) {
+ err("fimc target format not found\n");
+ ret = -EINVAL;
+ goto sf_unlock;
+ }
+
+ /* Output DMA frame pixel size and offsets. */
+ frame->f_width = pix->bytesperline * 8 / frame->fmt->depth;
+ frame->f_height = pix->height;
+ frame->width = pix->width;
+ frame->height = pix->height;
+ frame->o_width = pix->width;
+ frame->o_height = pix->height;
+ frame->size = (pix->width * pix->height * frame->fmt->depth) >> 3;
+ frame->offs_h = 0;
+ frame->offs_v = 0;
+
+ ctx->state |= (FIMC_PARAMS | FIMC_DST_FMT);
+
+sf_unlock:
+ mutex_unlock(&fimc->lock);
+ return ret;
+}
+
+static int vidioc_enum_input_capture(struct file *file, void *priv,
+ struct v4l2_input *i)
+{
+ struct fimc_ctx *ctx = priv;
+ struct s3c_platform_fimc *pldata = ctx->fimc_dev->pdata;
+ struct s3c_fimc_isp_info *isp_info;
+
+ dbg("i->index= %d", i->index);
+
+ if (i->index >= FIMC_MAX_CAM_SOURCES)
+ return -EINVAL;
+
+ isp_info = pldata->isp_info[i->index];
+ if (isp_info == NULL)
+ return -EINVAL; /* FIXME: is this right error code? */
+
+ i->type = V4L2_INPUT_TYPE_CAMERA;
+ strncpy(i->name, isp_info->board_info->type, 32);
+
+ return 0;
+}
+
+static int vidioc_s_input_capture(struct file *file, void *priv,
+ unsigned int i)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct s3c_platform_fimc *pdata = fimc->pdata;
+ int ret;
+
+ if (fimc_capture_active(ctx->fimc_dev))
+ return -EBUSY;
+
+ mutex_lock(&fimc->lock);
+
+ if (i >= FIMC_MAX_CAM_SOURCES || !pdata->isp_info[i]) {
+ ret = -EINVAL;
+ goto si_unlock;
+ }
+
+ if (fimc->vid_cap.sd) {
+ ret = v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0);
+ if (ret)
+ err("s_power failed: %d", ret);
+ }
+
+ /* Release the attached sensor subdevice. */
+ fimc_subdev_unregister(fimc);
+
+ ret = fimc_isp_subdev_init(fimc, i);
+
+si_unlock:
+ mutex_unlock(&fimc->lock);
+ return ret;
+}
+
+static int vidioc_g_input_capture(struct file *file, void *priv,
+ unsigned int *i)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap;
+
+ *i = cap->input_index;
+ return 0;
+}
+
+static int vidioc_streamon_capture(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct s3c_fimc_isp_info *isp_info;
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ int ret;
+
+ mutex_lock(&fimc->lock);
+
+ if (fimc_capture_active(fimc) || !fimc->vid_cap.sd) {
+ ret = -EBUSY;
+ goto s_unlock;
+ }
+
+ if (!(ctx->state & FIMC_DST_FMT)) {
+ v4l2_err(&fimc->vid_cap.v4l2_dev, "Format is not set\n");
+ ret = -EINVAL;
+ goto s_unlock;
+ }
+
+ /*
+ * s_mbus_fmt is called on camera sensor subdevice here to enable
+ * reasonable operation in the configuration where single camera sensor
+ * is attached to more than one brigde (FIMC).
+ */
+ ret = sync_capture_fmt(ctx);
+ if (!ret)
+ ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_stream, 1);
+
+ if (ret && ret != -ENOIOCTLCMD) {
+ ret = -EBUSY;
+ goto s_unlock;
+ }
+
+ dbg("buf_index: %d", fimc->vid_cap.buf_index);
+
+ ctx->state &= ~(FIMC_SRC_ADDR | FIMC_DST_ADDR);
+ ret = fimc_prepare_config(ctx, ctx->state);
+ if (ret) {
+ ret = -EBUSY;
+ goto s_unlock;
+ }
+
+ isp_info = fimc->pdata->isp_info[fimc->vid_cap.input_index];
+ fimc_hw_set_camera_type(fimc, isp_info);
+ fimc_hw_set_camera_source(fimc, isp_info);
+ fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
+ fimc_hw_set_input_path(ctx);
+
+ if (fimc_set_scaler_info(ctx)) {
+ err("scaler configuration failure");
+ ret = -EBUSY;
+ goto s_unlock;
+ }
+
+ fimc_hw_set_scaler(ctx);
+ fimc_hw_set_target_format(ctx);
+ fimc_hw_set_rotation(ctx);
+ fimc_hw_set_effect(ctx);
+
+ fimc_hw_set_output_path(ctx);
+ fimc_hw_set_out_dma(ctx);
+
+ INIT_LIST_HEAD(&fimc->vid_cap.pending_buf_q);
+ INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
+ fimc->vid_cap.active_buf_cnt = 0;
+ fimc->vid_cap.frame_count = 0;
+
+ set_bit(ST_CAPT_PEND, &fimc->state);
+ ret = videobuf_streamon(&fimc->vid_cap.vbq);
+
+s_unlock:
+ mutex_unlock(&fimc->lock);
+ return ret;
+}
+
+static int vidioc_streamoff_capture(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct fimc_vid_cap *cap = &fimc->vid_cap;
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&fimc->slock, flags);
+ if (!fimc_capture_running(fimc) && !fimc_capture_pending(fimc)) {
+ spin_unlock_irqrestore(&fimc->slock, flags);
+ dbg("state: 0x%lx", fimc->state);
+ return -EINVAL;
+ }
+ spin_unlock_irqrestore(&fimc->slock, flags);
+
+ mutex_lock(&fimc->lock);
+ fimc_stop_capture(fimc);
+ ret = videobuf_streamoff(&cap->vbq);
+ mutex_unlock(&fimc->lock);
+ return ret;
+}
+
+static int vidioc_reqbufs_capture(struct file *file, void *priv,
+ struct v4l2_requestbuffers *reqbufs)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap;
+ int ret;
+
+ if (fimc_capture_active(ctx->fimc_dev))
+ return -EBUSY;
+
+ ret = videobuf_reqbufs(&cap->vbq, reqbufs);
+ cap->reqbufs_count = reqbufs->count;
+ dbg("reqbufs_count: %d", cap->reqbufs_count);
+ return ret;
+}
+
+static int vidioc_querybuf_capture(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap;
+
+ if (fimc_capture_active(ctx->fimc_dev))
+ return -EBUSY;
+
+ return videobuf_querybuf(&cap->vbq, buf);
+}
+
+static int vidioc_qbuf_capture(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap;
+
+ return videobuf_qbuf(&cap->vbq, buf);
+}
+
+static int vidioc_dqbuf_capture(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = priv;
+
+ return videobuf_dqbuf(&ctx->fimc_dev->vid_cap.vbq, buf,
+ file->f_flags & O_NONBLOCK);
+}
+
+static int vidioc_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct fimc_ctx *ctx = priv;
+ int ret;
+
+ if (fimc_capture_active(ctx->fimc_dev))
+ return -EBUSY;
+
+ ret = check_ctrl_val(ctx, ctrl);
+ if (ret)
+ return ret;
+
+ mutex_lock(&ctx->fimc_dev->lock);
+ ret = fimc_s_ctrl(ctx, ctrl);
+ if (!ret)
+ ctx->state |= FIMC_PARAMS;
+ mutex_unlock(&ctx->fimc_dev->lock);
+ return 0;
+}
+
+static int vidioc_cropcap_capture(struct file *file, void *fh,
+ struct v4l2_cropcap *cr)
+{
+ struct fimc_ctx *ctx = fh;
+ struct fimc_frame *f = &ctx->d_frame;
+
+ if (cr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ cr->bounds.left = 0;
+ cr->bounds.top = 0;
+
+ mutex_lock(&ctx->fimc_dev->lock);
+
+ cr->bounds.width = f->f_width;
+ cr->bounds.height = f->f_height;
+ cr->defrect.left = f->offs_h;
+ cr->defrect.top = f->offs_v;
+ cr->defrect.width = f->o_width;
+ cr->defrect.height = f->o_height;
+
+ mutex_unlock(&ctx->fimc_dev->lock);
+ return 0;
+}
+
+static int vidioc_g_crop_capture(struct file *file, void *fh,
+ struct v4l2_crop *cr)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_frame *f = &ctx->s_frame;
+
+ if (cr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ mutex_lock(&ctx->fimc_dev->lock);
+
+ cr->c.left = f->offs_h;
+ cr->c.top = f->offs_v;
+ cr->c.width = f->width;
+ cr->c.height = f->height;
+
+ mutex_unlock(&ctx->fimc_dev->lock);
+ return 0;
+}
+
+static int vidioc_s_crop_capture(struct file *file, void *fh,
+ struct v4l2_crop *cr)
+{
+ struct fimc_frame *f;
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ int ret = -EINVAL;
+
+ if (fimc_capture_active(fimc))
+ return -EBUSY;
+
+ mutex_lock(&fimc->lock);
+ f = &ctx->s_frame;
+
+ if (cr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+ !(ctx->state & FIMC_DST_FMT)) {
+ v4l2_err(&fimc->vid_cap.v4l2_dev,
+ "Wrong video buffer type or format not set\n");
+ goto sc_unlock;
+ }
+
+ if (cr->c.top < 0 || cr->c.left < 0) {
+ v4l2_err(&fimc->vid_cap.v4l2_dev,
+ "Doesn't support negative values for top & left\n");
+ goto sc_unlock;
+ }
+
+ /* Adjust to DMA_MIN_SIZE pixels boundary. */
+ cr->c.width = ALIGN(cr->c.width, DMA_MIN_SIZE) ;
+ cr->c.height = ALIGN(cr->c.height, DMA_MIN_SIZE);
+ cr->c.left = ALIGN(cr->c.left, DMA_MIN_SIZE);
+ cr->c.top = ALIGN(cr->c.top, DMA_MIN_SIZE);
+
+ dbg("%d %d %d %d f_w= %d, f_h= %d",
+ cr->c.left, cr->c.top, cr->c.width, cr->c.height,
+ f->f_width, f->f_height);
+
+ if ((cr->c.left + cr->c.width > f->o_width)
+ || (cr->c.top + cr->c.height > f->o_height)) {
+ v4l2_err(&fimc->vid_cap.v4l2_dev, "Error in S_CROP params\n");
+ goto sc_unlock;
+ }
+
+ /* Check for the pixel scaling ratio when cropping input image. */
+ ret = fimc_check_scaler_ratio(&cr->c, &ctx->d_frame);
+ if (ret) {
+ v4l2_err(&fimc->vid_cap.v4l2_dev, "Out of the scaler range");
+ goto sc_unlock;
+ }
+
+ ret = 0;
+ f->offs_h = cr->c.left;
+ f->offs_v = cr->c.top;
+ f->width = cr->c.width;
+ f->height = cr->c.height;
+
+sc_unlock:
+ mutex_lock(&fimc->lock);
+ return ret;
+}
+
+
+static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap_capture,
+
+ .vidioc_enum_fmt_vid_cap = fimc_m2m_enum_fmt,
+ .vidioc_try_fmt_vid_cap = vidioc_try_fmt_capture,
+ .vidioc_s_fmt_vid_cap = vidioc_s_fmt_capture,
+ .vidioc_g_fmt_vid_cap = vidioc_g_fmt_capture,
+
+ .vidioc_reqbufs = vidioc_reqbufs_capture,
+ .vidioc_querybuf = vidioc_querybuf_capture,
+
+ .vidioc_qbuf = vidioc_qbuf_capture,
+ .vidioc_dqbuf = vidioc_dqbuf_capture,
+
+ .vidioc_streamon = vidioc_streamon_capture,
+ .vidioc_streamoff = vidioc_streamoff_capture,
+
+ .vidioc_queryctrl = fimc_m2m_queryctrl,
+ .vidioc_g_ctrl = fimc_m2m_g_ctrl,
+ .vidioc_s_ctrl = vidioc_s_ctrl,
+
+ .vidioc_g_crop = vidioc_g_crop_capture,
+ .vidioc_s_crop = vidioc_s_crop_capture,
+ .vidioc_cropcap = vidioc_cropcap_capture,
+
+ .vidioc_enum_input = vidioc_enum_input_capture,
+ .vidioc_s_input = vidioc_s_input_capture,
+ .vidioc_g_input = vidioc_g_input_capture,
+};
+
+int fimc_register_capture_device(struct fimc_dev *fimc)
+{
+ struct v4l2_device *v4l2_dev = &fimc->vid_cap.v4l2_dev;
+ struct video_device *vfd;
+ struct fimc_vid_cap *vid_cap;
+ struct fimc_ctx *ctx;
+ struct v4l2_format f;
+ int ret;
+
+ ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ctx->fimc_dev = fimc;
+ ctx->effect.type = S5P_FIMC_EFFECT_ORIGINAL;
+ ctx->in_path = FIMC_CAMERA;
+ ctx->out_path = FIMC_DMA;
+ ctx->state = FIMC_CTX_CAP;
+
+ f.fmt.pix.pixelformat = V4L2_PIX_FMT_RGB24;
+ ctx->d_frame.fmt = find_format(&f, FMT_FLAGS_M2M);
+
+ if (!v4l2_dev->name[0])
+ snprintf(v4l2_dev->name, sizeof(v4l2_dev->name),
+ "%s.capture", dev_name(&fimc->pdev->dev));
+
+ ret = v4l2_device_register(NULL, v4l2_dev);
+ if (ret)
+ goto err_info;
+
+ vfd = video_device_alloc();
+ if (!vfd) {
+ v4l2_err(v4l2_dev, "Failed to allocate video device\n");
+ goto err_v4l2_reg;
+ }
+
+ snprintf(vfd->name, sizeof(vfd->name), "%s:cap",
+ dev_name(&fimc->pdev->dev));
+
+ vfd->fops = &fimc_capture_fops;
+ vfd->ioctl_ops = &fimc_capture_ioctl_ops;
+ vfd->minor = -1;
+ vfd->release = video_device_release;
+ video_set_drvdata(vfd, fimc);
+
+ vid_cap = &fimc->vid_cap;
+ vid_cap->vfd = vfd;
+ vid_cap->active_buf_cnt = 0;
+ vid_cap->reqbufs_count = 0;
+ vid_cap->refcnt = 0;
+ /* The default color format for image sensor. */
+ vid_cap->fmt.code = V4L2_MBUS_FMT_VYUY8_2X8;
+
+ INIT_LIST_HEAD(&vid_cap->pending_buf_q);
+ INIT_LIST_HEAD(&vid_cap->active_buf_q);
+ spin_lock_init(&ctx->slock);
+ vid_cap->ctx = ctx;
+
+ videobuf_queue_dma_contig_init(&vid_cap->vbq, &fimc_qops,
+ vid_cap->v4l2_dev.dev, &fimc->irqlock,
+ V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE,
+ sizeof(struct fimc_vid_buffer), (void *)ctx);
+
+ ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
+ if (ret) {
+ v4l2_err(v4l2_dev, "Failed to register video device\n");
+ goto err_vd_reg;
+ }
+
+ v4l2_info(v4l2_dev,
+ "FIMC capture driver registered as /dev/video%d\n",
+ vfd->num);
+
+ return 0;
+
+err_vd_reg:
+ video_device_release(vfd);
+err_v4l2_reg:
+ v4l2_device_unregister(v4l2_dev);
+err_info:
+ dev_err(&fimc->pdev->dev, "failed to install\n");
+ return ret;
+}
+
+void fimc_unregister_capture_device(struct fimc_dev *fimc)
+{
+ struct fimc_vid_cap *capture = &fimc->vid_cap;
+
+ if (capture->vfd)
+ video_unregister_device(capture->vfd);
+
+ kfree(capture->ctx);
+}
@@ -1,9 +1,8 @@
/*
- * S5P camera interface (video postprocessor) driver
+ * Samsung S5P SoC series camera interface (video postprocessor) driver
*
- * Copyright (c) 2010 Samsung Electronics
- *
- * Sylwester Nawrocki, <s.nawrocki@samsung.com>
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd
+ * Author: Sylwester Nawrocki, <s.nawrocki@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
@@ -38,86 +37,103 @@ static struct fimc_fmt fimc_formats[] = {
.depth = 16,
.color = S5P_FIMC_RGB565,
.buff_cnt = 1,
- .planes_cnt = 1
+ .planes_cnt = 1,
+ .mbus_code = V4L2_MBUS_FMT_RGB565_2X8_BE,
+ .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
}, {
.name = "BGR666",
.fourcc = V4L2_PIX_FMT_BGR666,
.depth = 32,
.color = S5P_FIMC_RGB666,
.buff_cnt = 1,
- .planes_cnt = 1
+ .planes_cnt = 1,
+ .flags = FMT_FLAGS_M2M,
}, {
.name = "XRGB-8-8-8-8, 24 bpp",
.fourcc = V4L2_PIX_FMT_RGB24,
.depth = 32,
.color = S5P_FIMC_RGB888,
.buff_cnt = 1,
- .planes_cnt = 1
+ .planes_cnt = 1,
+ .flags = FMT_FLAGS_M2M,
}, {
.name = "YUV 4:2:2 packed, YCbYCr",
.fourcc = V4L2_PIX_FMT_YUYV,
.depth = 16,
.color = S5P_FIMC_YCBYCR422,
.buff_cnt = 1,
- .planes_cnt = 1
- }, {
+ .planes_cnt = 1,
+ .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8,
+ .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
+ }, {
.name = "YUV 4:2:2 packed, CbYCrY",
.fourcc = V4L2_PIX_FMT_UYVY,
.depth = 16,
.color = S5P_FIMC_CBYCRY422,
.buff_cnt = 1,
- .planes_cnt = 1
+ .planes_cnt = 1,
+ .mbus_code = V4L2_MBUS_FMT_VYUY8_2X8,
+ .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
}, {
.name = "YUV 4:2:2 packed, CrYCbY",
.fourcc = V4L2_PIX_FMT_VYUY,
.depth = 16,
.color = S5P_FIMC_CRYCBY422,
.buff_cnt = 1,
- .planes_cnt = 1
+ .planes_cnt = 1,
+ .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8,
+ .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
}, {
.name = "YUV 4:2:2 packed, YCrYCb",
.fourcc = V4L2_PIX_FMT_YVYU,
.depth = 16,
.color = S5P_FIMC_YCRYCB422,
.buff_cnt = 1,
- .planes_cnt = 1
+ .planes_cnt = 1,
+ .mbus_code = V4L2_MBUS_FMT_YVYU8_2X8,
+ .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
}, {
.name = "YUV 4:2:2 planar, Y/Cb/Cr",
.fourcc = V4L2_PIX_FMT_YUV422P,
.depth = 12,
.color = S5P_FIMC_YCBCR422,
.buff_cnt = 1,
- .planes_cnt = 3
+ .planes_cnt = 3,
+ .flags = FMT_FLAGS_M2M,
}, {
.name = "YUV 4:2:2 planar, Y/CbCr",
.fourcc = V4L2_PIX_FMT_NV16,
.depth = 16,
.color = S5P_FIMC_YCBCR422,
.buff_cnt = 1,
- .planes_cnt = 2
+ .planes_cnt = 2,
+ .flags = FMT_FLAGS_M2M,
}, {
.name = "YUV 4:2:2 planar, Y/CrCb",
.fourcc = V4L2_PIX_FMT_NV61,
.depth = 16,
.color = S5P_FIMC_RGB565,
.buff_cnt = 1,
- .planes_cnt = 2
+ .planes_cnt = 2,
+ .flags = FMT_FLAGS_M2M,
}, {
.name = "YUV 4:2:0 planar, YCbCr",
.fourcc = V4L2_PIX_FMT_YUV420,
.depth = 12,
.color = S5P_FIMC_YCBCR420,
.buff_cnt = 1,
- .planes_cnt = 3
+ .planes_cnt = 3,
+ .flags = FMT_FLAGS_M2M,
}, {
.name = "YUV 4:2:0 planar, Y/CbCr",
.fourcc = V4L2_PIX_FMT_NV12,
.depth = 12,
.color = S5P_FIMC_YCBCR420,
.buff_cnt = 1,
- .planes_cnt = 2
- }
- };
+ .planes_cnt = 2,
+ .flags = FMT_FLAGS_M2M,
+ },
+};
static struct v4l2_queryctrl fimc_ctrls[] = {
{
@@ -158,7 +174,7 @@ static struct v4l2_queryctrl *get_ctrl(int id)
return NULL;
}
-static int fimc_check_scaler_ratio(struct v4l2_rect *r, struct fimc_frame *f)
+int fimc_check_scaler_ratio(struct v4l2_rect *r, struct fimc_frame *f)
{
if (r->width > f->width) {
if (f->width > (r->width * SCALER_MAX_HRATIO))
@@ -206,7 +222,7 @@ static int fimc_get_scaler_factor(u32 src, u32 tar, u32 *ratio, u32 *shift)
return 0;
}
-static int fimc_set_scaler_info(struct fimc_ctx *ctx)
+int fimc_set_scaler_info(struct fimc_ctx *ctx)
{
struct fimc_scaler *sc = &ctx->scaler;
struct fimc_frame *s_frame = &ctx->s_frame;
@@ -261,12 +277,63 @@ static int fimc_set_scaler_info(struct fimc_ctx *ctx)
return 0;
}
+static void fimc_capture_handler(struct fimc_dev *fimc)
+{
+ struct fimc_vid_cap *cap = &fimc->vid_cap;
+ struct fimc_vid_buffer *v_buf = NULL;
+
+ if (!list_empty(&cap->active_buf_q)) {
+ v_buf = active_queue_pop(cap);
+ fimc_buf_finish(fimc, v_buf);
+ }
+
+ if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
+ wake_up(&fimc->irq_queue);
+ return;
+ }
+
+ dbg("cap->active_buf_cnt= %d", cap->active_buf_cnt);
+
+ if (!list_empty(&cap->pending_buf_q)) {
+ assert(cap->active_buf_cnt < FIMC_MAX_OUT_BUFS);
+
+ v_buf = pending_queue_pop(cap);
+
+ fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
+ v_buf->index = cap->buf_index;
+
+ dbg("hw ptr: %d, sw ptr: %d",
+ fimc_hw_get_frame_index(fimc), cap->buf_index);
+
+ spin_lock(&fimc->irqlock);
+ v_buf->vb.state = VIDEOBUF_ACTIVE;
+ spin_unlock(&fimc->irqlock);
+
+ /* Move the buffer to the capture active queue,
+ this step is not really necessary. */
+ active_queue_add(cap, v_buf);
+
+ dbg("next frame: %d, done frame: %d",
+ fimc_hw_get_frame_index(fimc), v_buf->index);
+
+ if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
+ cap->buf_index = 0;
+
+ } else if (test_and_clear_bit(ST_CAPT_STREAM, &fimc->state) &&
+ cap->active_buf_cnt <= 1) {
+ fimc_deactivate_capture(fimc);
+ dbg("stopped");
+ }
+
+ dbg("frame: %d, active_buf_cnt= %d",
+ fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
+}
static irqreturn_t fimc_isr(int irq, void *priv)
{
struct fimc_vid_buffer *src_buf, *dst_buf;
- struct fimc_dev *fimc = (struct fimc_dev *)priv;
struct fimc_ctx *ctx;
+ struct fimc_dev *fimc = (struct fimc_dev *)priv;
BUG_ON(!fimc);
fimc_hw_clear_irq(fimc);
@@ -281,12 +348,22 @@ static irqreturn_t fimc_isr(int irq, void *priv)
dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
if (src_buf && dst_buf) {
spin_lock(&fimc->irqlock);
- src_buf->vb.state = dst_buf->vb.state = VIDEOBUF_DONE;
+ src_buf->vb.state = dst_buf->vb.state = VIDEOBUF_DONE;
wake_up(&src_buf->vb.done);
wake_up(&dst_buf->vb.done);
spin_unlock(&fimc->irqlock);
v4l2_m2m_job_finish(fimc->m2m.m2m_dev, ctx->m2m_ctx);
}
+ goto isr_unlock;
+
+ }
+
+ if (test_bit(ST_CAPT_RUN, &fimc->state))
+ fimc_capture_handler(fimc);
+
+ if (test_and_clear_bit(ST_CAPT_PEND, &fimc->state)) {
+ set_bit(ST_CAPT_RUN, &fimc->state);
+ wake_up(&fimc->irq_queue);
}
isr_unlock:
@@ -295,20 +372,13 @@ isr_unlock:
}
/* The color format (planes_cnt, buff_cnt) must be already configured. */
-static int fimc_prepare_addr(struct fimc_ctx *ctx,
- struct fimc_vid_buffer *buf, enum v4l2_buf_type type)
+int fimc_prepare_addr(struct fimc_ctx *ctx, struct fimc_vid_buffer *buf,
+ struct fimc_frame *frame, struct fimc_addr *paddr)
{
- struct fimc_frame *frame;
- struct fimc_addr *paddr;
- u32 pix_size;
int ret = 0;
+ u32 pix_size;
- frame = ctx_m2m_get_frame(ctx, type);
- if (IS_ERR(frame))
- return PTR_ERR(frame);
- paddr = &frame->paddr;
-
- if (!buf)
+ if (buf == NULL || frame == NULL)
return -EINVAL;
pix_size = frame->width * frame->height;
@@ -344,8 +414,8 @@ static int fimc_prepare_addr(struct fimc_ctx *ctx,
}
}
- dbg("PHYS_ADDR: type= %d, y= 0x%X cb= 0x%X cr= 0x%X ret= %d",
- type, paddr->y, paddr->cb, paddr->cr, ret);
+ dbg("PHYS_ADDR: y= 0x%X cb= 0x%X cr= 0x%X ret= %d",
+ paddr->y, paddr->cb, paddr->cr, ret);
return ret;
}
@@ -410,11 +480,11 @@ static void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f)
f->dma_offset.cr_v = f->offs_v;
if (!variant->pix_hoff) {
- if(f->fmt->planes_cnt == 3) {
+ if (f->fmt->planes_cnt == 3) {
f->dma_offset.cb_h >>= 1;
f->dma_offset.cr_h >>= 1;
}
- if(f->fmt->color == S5P_FIMC_YCBCR420) {
+ if (f->fmt->color == S5P_FIMC_YCBCR420) {
f->dma_offset.cb_v >>= 1;
f->dma_offset.cr_v >>= 1;
}
@@ -433,7 +503,7 @@ static void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f)
*
* Return: 0 if dimensions are valid or non zero otherwise.
*/
-static int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
+int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
{
struct fimc_frame *s_frame, *d_frame;
struct fimc_vid_buffer *buf = NULL;
@@ -466,16 +536,14 @@ static int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
if (flags & FIMC_SRC_ADDR) {
buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
- ret = fimc_prepare_addr(ctx, buf,
- V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ ret = fimc_prepare_addr(ctx, buf, s_frame, &s_frame->paddr);
if (ret)
return ret;
}
if (flags & FIMC_DST_ADDR) {
buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
- ret = fimc_prepare_addr(ctx, buf,
- V4L2_BUF_TYPE_VIDEO_CAPTURE);
+ ret = fimc_prepare_addr(ctx, buf, d_frame, &d_frame->paddr);
}
return ret;
@@ -502,9 +570,11 @@ static void fimc_dma_run(void *priv)
err("general configuration error");
goto dma_unlock;
}
-
- if (fimc->m2m.ctx != ctx)
+ /* Reconfigure hardware if the context has changed. */
+ if (fimc->m2m.ctx != ctx) {
ctx->state |= FIMC_PARAMS;
+ fimc->m2m.ctx = ctx;
+ }
fimc_hw_set_input_addr(fimc, &ctx->s_frame.paddr);
@@ -515,7 +585,6 @@ static void fimc_dma_run(void *priv)
err("scaler configuration error");
goto dma_unlock;
}
- fimc_hw_set_prescaler(ctx);
fimc_hw_set_scaler(ctx);
fimc_hw_set_target_format(ctx);
fimc_hw_set_rotation(ctx);
@@ -524,19 +593,15 @@ static void fimc_dma_run(void *priv)
fimc_hw_set_output_path(ctx);
if (ctx->state & (FIMC_DST_ADDR | FIMC_PARAMS))
- fimc_hw_set_output_addr(fimc, &ctx->d_frame.paddr);
+ fimc_hw_set_output_addr(fimc, &ctx->d_frame.paddr, -1);
if (ctx->state & FIMC_PARAMS)
fimc_hw_set_out_dma(ctx);
- if (ctx->scaler.enabled)
- fimc_hw_start_scaler(fimc);
- fimc_hw_en_capture(ctx);
-
- ctx->state = 0;
- fimc_hw_start_in_dma(fimc);
+ fimc_activate_capture(ctx);
- fimc->m2m.ctx = ctx;
+ ctx->state &= FIMC_CTX_M2M;
+ fimc_hw_activate_input_dma(fimc, true);
dma_unlock:
spin_unlock_irqrestore(&ctx->slock, flags);
@@ -560,7 +625,7 @@ static int fimc_buf_setup(struct videobuf_queue *vq, unsigned int *count,
struct fimc_ctx *ctx = vq->priv_data;
struct fimc_frame *frame;
- frame = ctx_m2m_get_frame(ctx, vq->type);
+ frame = ctx_get_frame(ctx, vq->type);
if (IS_ERR(frame))
return PTR_ERR(frame);
@@ -578,7 +643,7 @@ static int fimc_buf_prepare(struct videobuf_queue *vq,
struct fimc_frame *frame;
int ret;
- frame = ctx_m2m_get_frame(ctx, vq->type);
+ frame = ctx_get_frame(ctx, vq->type);
if (IS_ERR(frame))
return PTR_ERR(frame);
@@ -618,10 +683,30 @@ static void fimc_buf_queue(struct videobuf_queue *vq,
struct videobuf_buffer *vb)
{
struct fimc_ctx *ctx = vq->priv_data;
- v4l2_m2m_buf_queue(ctx->m2m_ctx, vq, vb);
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct fimc_vid_cap *cap = &fimc->vid_cap;
+ unsigned long flags;
+
+ dbg("ctx= %p, ctx->state= 0x%x", ctx, ctx->state);
+
+ if ((ctx->state & FIMC_CTX_M2M) && ctx->m2m_ctx) {
+ v4l2_m2m_buf_queue(ctx->m2m_ctx, vq, vb);
+ } else if (ctx->state & FIMC_CTX_CAP) {
+ spin_lock_irqsave(&fimc->slock, flags);
+ fimc_vid_cap_buf_queue(fimc, (struct fimc_vid_buffer *)vb);
+ dbg("fimc->cap.active_buf_cnt: %d",
+ fimc->vid_cap.active_buf_cnt);
+
+ if (cap->active_buf_cnt >= cap->reqbufs_count ||
+ cap->active_buf_cnt >= FIMC_MAX_OUT_BUFS) {
+ if (!test_and_set_bit(ST_CAPT_STREAM, &fimc->state))
+ fimc_activate_capture(ctx);
+ }
+ spin_unlock_irqrestore(&fimc->slock, flags);
+ }
}
-static struct videobuf_queue_ops fimc_qops = {
+struct videobuf_queue_ops fimc_qops = {
.buf_setup = fimc_buf_setup,
.buf_prepare = fimc_buf_prepare,
.buf_queue = fimc_buf_queue,
@@ -644,7 +729,7 @@ static int fimc_m2m_querycap(struct file *file, void *priv,
return 0;
}
-static int fimc_m2m_enum_fmt(struct file *file, void *priv,
+int fimc_m2m_enum_fmt(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
struct fimc_fmt *fmt;
@@ -663,7 +748,7 @@ static int fimc_m2m_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
struct fimc_ctx *ctx = priv;
struct fimc_frame *frame;
- frame = ctx_m2m_get_frame(ctx, f->type);
+ frame = ctx_get_frame(ctx, f->type);
if (IS_ERR(frame))
return PTR_ERR(frame);
@@ -675,20 +760,34 @@ static int fimc_m2m_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
return 0;
}
-static struct fimc_fmt *find_format(struct v4l2_format *f)
+struct fimc_fmt *find_format(struct v4l2_format *f, unsigned int mask)
+{
+ struct fimc_fmt *fmt;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) {
+ fmt = &fimc_formats[i];
+ if (fmt->fourcc == f->fmt.pix.pixelformat &&
+ (fmt->flags & mask))
+ break;
+ }
+
+ return (i == ARRAY_SIZE(fimc_formats)) ? NULL : fmt;
+}
+
+struct fimc_fmt *find_mbus_format(struct v4l2_mbus_framefmt *f,
+ unsigned int mask)
{
struct fimc_fmt *fmt;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) {
fmt = &fimc_formats[i];
- if (fmt->fourcc == f->fmt.pix.pixelformat)
+ if (fmt->mbus_code == f->code && (fmt->flags & mask))
break;
}
- if (i == ARRAY_SIZE(fimc_formats))
- return NULL;
- return fmt;
+ return (i == ARRAY_SIZE(fimc_formats)) ? NULL : fmt;
}
static int fimc_m2m_try_fmt(struct file *file, void *priv,
@@ -701,7 +800,7 @@ static int fimc_m2m_try_fmt(struct file *file, void *priv,
struct v4l2_pix_format *pix = &f->fmt.pix;
struct samsung_fimc_variant *variant = fimc->variant;
- fmt = find_format(f);
+ fmt = find_format(f, FMT_FLAGS_M2M);
if (!fmt) {
v4l2_err(&fimc->m2m.v4l2_dev,
"Fourcc format (0x%X) invalid.\n", pix->pixelformat);
@@ -746,7 +845,7 @@ static int fimc_m2m_try_fmt(struct file *file, void *priv,
pix->height = (pix->height == 0) ? mod_y : ALIGN(pix->height, mod_y);
if (pix->bytesperline == 0 ||
- pix->bytesperline * 8 / fmt->depth > pix->width)
+ (pix->bytesperline * 8 / fmt->depth) > pix->width)
pix->bytesperline = (pix->width * fmt->depth) >> 3;
if (pix->sizeimage == 0)
@@ -807,18 +906,19 @@ static int fimc_m2m_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
} else {
v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev,
"Wrong buffer/video queue type (%d)\n", f->type);
- return -EINVAL;
+ ret = -EINVAL;
+ goto s_fmt_out;
}
pix = &f->fmt.pix;
- frame->fmt = find_format(f);
+ frame->fmt = find_format(f, FMT_FLAGS_M2M);
if (!frame->fmt) {
ret = -EINVAL;
goto s_fmt_out;
}
frame->f_width = pix->bytesperline * 8 / frame->fmt->depth;
- frame->f_height = pix->sizeimage/pix->bytesperline;
+ frame->f_height = pix->height;
frame->width = pix->width;
frame->height = pix->height;
frame->o_width = pix->width;
@@ -917,8 +1017,7 @@ int fimc_m2m_g_ctrl(struct file *file, void *priv,
return 0;
}
-static int check_ctrl_val(struct fimc_ctx *ctx,
- struct v4l2_control *ctrl)
+int check_ctrl_val(struct fimc_ctx *ctx, struct v4l2_control *ctrl)
{
struct v4l2_queryctrl *c;
c = get_ctrl(ctrl->id);
@@ -935,18 +1034,9 @@ static int check_ctrl_val(struct fimc_ctx *ctx,
return 0;
}
-int fimc_m2m_s_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
+int fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_control *ctrl)
{
- struct fimc_ctx *ctx = priv;
struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
- unsigned long flags;
- int ret = 0;
-
- ret = check_ctrl_val(ctx, ctrl);
- if (ret)
- return ret;
-
switch (ctrl->id) {
case V4L2_CID_HFLIP:
if (ctx->rotation != 0)
@@ -985,20 +1075,37 @@ int fimc_m2m_s_ctrl(struct file *file, void *priv,
v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev, "Invalid control\n");
return -EINVAL;
}
+ return 0;
+}
+
+static int fimc_m2m_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct fimc_ctx *ctx = priv;
+ unsigned long flags;
+ int ret = 0;
+
+ ret = check_ctrl_val(ctx, ctrl);
+ if (ret)
+ return ret;
+
spin_lock_irqsave(&ctx->slock, flags);
+ ret = fimc_s_ctrl(ctx, ctrl);
ctx->state |= FIMC_PARAMS;
spin_unlock_irqrestore(&ctx->slock, flags);
return 0;
}
-
static int fimc_m2m_cropcap(struct file *file, void *fh,
struct v4l2_cropcap *cr)
{
struct fimc_frame *frame;
struct fimc_ctx *ctx = fh;
- frame = ctx_m2m_get_frame(ctx, cr->type);
+ if (WARN(!ctx, "null hardware context"))
+ return -ENOENT;
+
+ frame = ctx_get_frame(ctx, cr->type);
if (IS_ERR(frame))
return PTR_ERR(frame);
@@ -1018,7 +1125,7 @@ static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
struct fimc_frame *frame;
struct fimc_ctx *ctx = file->private_data;
- frame = ctx_m2m_get_frame(ctx, cr->type);
+ frame = ctx_get_frame(ctx, cr->type);
if (IS_ERR(frame))
return PTR_ERR(frame);
@@ -1051,7 +1158,7 @@ static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
return -EINVAL;
}
- f = ctx_m2m_get_frame(ctx, cr->type);
+ f = ctx_get_frame(ctx, cr->type);
if (IS_ERR(f))
return PTR_ERR(f);
@@ -1085,12 +1192,13 @@ static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
}
}
ctx->state |= FIMC_PARAMS;
- spin_unlock_irqrestore(&ctx->slock, flags);
f->offs_h = cr->c.left;
f->offs_v = cr->c.top;
f->width = cr->c.width;
f->height = cr->c.height;
+
+ spin_unlock_irqrestore(&ctx->slock, flags);
return 0;
}
@@ -1135,7 +1243,7 @@ static void queue_init(void *priv, struct videobuf_queue *vq,
struct fimc_dev *fimc = ctx->fimc_dev;
videobuf_queue_dma_contig_init(vq, &fimc_qops,
- fimc->m2m.v4l2_dev.dev,
+ &fimc->pdev->dev,
&fimc->irqlock, type, V4L2_FIELD_NONE,
sizeof(struct fimc_vid_buffer), priv);
}
@@ -1151,7 +1259,6 @@ static int fimc_m2m_open(struct file *file)
set_bit(ST_OUTDMA_RUN, &fimc->state);
mutex_unlock(&fimc->lock);
-
ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
if (!ctx)
return -ENOMEM;
@@ -1162,7 +1269,7 @@ static int fimc_m2m_open(struct file *file)
ctx->s_frame.fmt = &fimc_formats[0];
ctx->d_frame.fmt = &fimc_formats[0];
/* per user process device context initialization */
- ctx->state = 0;
+ ctx->state = FIMC_CTX_M2M;
ctx->flags = 0;
ctx->effect.type = S5P_FIMC_EFFECT_ORIGINAL;
ctx->in_path = FIMC_DMA;
@@ -1182,6 +1289,9 @@ static int fimc_m2m_release(struct file *file)
struct fimc_ctx *ctx = file->private_data;
struct fimc_dev *fimc = ctx->fimc_dev;
+ dbg("pid: %d, state: 0x%lx, refcnt= %d",
+ task_pid_nr(current), fimc->state, fimc->m2m.refcnt);
+
v4l2_m2m_ctx_release(ctx->m2m_ctx);
kfree(ctx);
mutex_lock(&fimc->lock);
@@ -1240,7 +1350,7 @@ static int fimc_register_m2m_device(struct fimc_dev *fimc)
ret = v4l2_device_register(&pdev->dev, v4l2_dev);
if (ret)
- return ret;;
+ goto err_m2m_r1;
vfd = video_device_alloc();
if (!vfd) {
@@ -1292,7 +1402,7 @@ static void fimc_unregister_m2m_device(struct fimc_dev *fimc)
if (fimc) {
v4l2_m2m_release(fimc->m2m.m2m_dev);
video_unregister_device(fimc->m2m.vfd);
- video_device_release(fimc->m2m.vfd);
+
v4l2_device_unregister(&fimc->m2m.v4l2_dev);
}
}
@@ -1349,9 +1459,11 @@ static int fimc_probe(struct platform_device *pdev)
fimc->id = pdev->id;
fimc->variant = drv_data->variant[fimc->id];
fimc->pdev = pdev;
+ fimc->pdata = pdev->dev.platform_data;
fimc->state = ST_IDLE;
spin_lock_init(&fimc->irqlock);
+ init_waitqueue_head(&fimc->irq_queue);
spin_lock_init(&fimc->slock);
mutex_init(&fimc->lock);
@@ -1381,6 +1493,7 @@ static int fimc_probe(struct platform_device *pdev)
ret = fimc_clk_get(fimc);
if (ret)
goto err_regs_unmap;
+ clk_set_rate(fimc->clock[0], drv_data->lclk_frequency);
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
@@ -1398,25 +1511,31 @@ static int fimc_probe(struct platform_device *pdev)
goto err_clk;
}
- fimc->work_queue = create_workqueue(dev_name(&fimc->pdev->dev));
- if (!fimc->work_queue) {
- ret = -ENOMEM;
- goto err_irq;
- }
-
ret = fimc_register_m2m_device(fimc);
if (ret)
- goto err_wq;
+ goto err_irq;
- fimc_hw_en_lastirq(fimc, true);
+ /* At least one camera sensor is required to register capture node */
+ if (fimc->pdata) {
+ int i;
+ for (i = 0; i < FIMC_MAX_CAM_SOURCES; ++i)
+ if (fimc->pdata->isp_info[i])
+ break;
+
+ if (i < FIMC_MAX_CAM_SOURCES) {
+ ret = fimc_register_capture_device(fimc);
+ if (ret)
+ goto err_m2m;
+ }
+ }
dev_dbg(&pdev->dev, "%s(): fimc-%d registered successfully\n",
__func__, fimc->id);
return 0;
-err_wq:
- destroy_workqueue(fimc->work_queue);
+err_m2m:
+ fimc_unregister_m2m_device(fimc);
err_irq:
free_irq(fimc->irq, fimc);
err_clk:
@@ -1428,7 +1547,7 @@ err_req_region:
kfree(fimc->regs_res);
err_info:
kfree(fimc);
- dev_err(&pdev->dev, "failed to install\n");
+
return ret;
}
@@ -1437,18 +1556,20 @@ static int __devexit fimc_remove(struct platform_device *pdev)
struct fimc_dev *fimc =
(struct fimc_dev *)platform_get_drvdata(pdev);
- v4l2_info(&fimc->m2m.v4l2_dev, "Removing %s\n", pdev->name);
-
free_irq(fimc->irq, fimc);
fimc_hw_reset(fimc);
fimc_unregister_m2m_device(fimc);
+ fimc_unregister_capture_device(fimc);
fimc_clk_release(fimc);
iounmap(fimc->regs);
release_resource(fimc->regs_res);
kfree(fimc->regs_res);
kfree(fimc);
+
+ dev_info(&pdev->dev, "%s driver unloaded\n", pdev->name);
+
return 0;
}
@@ -1512,7 +1633,8 @@ static struct samsung_fimc_driverdata fimc_drvdata_s5p = {
[1] = &fimc01_variant_s5p,
[2] = &fimc2_variant_s5p,
},
- .devs_cnt = 3
+ .devs_cnt = 3,
+ .lclk_frequency = 133000000UL,
};
static struct samsung_fimc_driverdata fimc_drvdata_s5pv210 = {
@@ -1521,7 +1643,8 @@ static struct samsung_fimc_driverdata fimc_drvdata_s5pv210 = {
[1] = &fimc01_variant_s5pv210,
[2] = &fimc2_variant_s5pv210,
},
- .devs_cnt = 3
+ .devs_cnt = 3,
+ .lclk_frequency = 133000000UL,
};
static struct platform_device_id fimc_driver_ids[] = {
@@ -1546,15 +1669,9 @@ static struct platform_driver fimc_driver = {
}
};
-static char banner[] __initdata = KERN_INFO
- "S5PC Camera Interface V4L2 Driver, (c) 2010 Samsung Electronics\n";
-
static int __init fimc_init(void)
{
- u32 ret;
- printk(banner);
-
- ret = platform_driver_register(&fimc_driver);
+ u32 ret = platform_driver_register(&fimc_driver);
if (ret) {
printk(KERN_ERR "FIMC platform driver register failed\n");
return -1;
@@ -1571,5 +1688,5 @@ module_init(fimc_init);
module_exit(fimc_exit);
MODULE_AUTHOR("Sylwester Nawrocki, s.nawrocki@samsung.com");
-MODULE_DESCRIPTION("S3C/S5P FIMC (video postprocessor) driver");
+MODULE_DESCRIPTION("S5P SoC Camera Host Interface driver");
MODULE_LICENSE("GPL");
@@ -11,10 +11,15 @@
#ifndef FIMC_CORE_H_
#define FIMC_CORE_H_
+/*#define DEBUG*/
+
#include <linux/types.h>
+#include <plat/fimc.h>
#include <media/videobuf-core.h>
#include <media/v4l2-device.h>
#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-mediabus.h>
+#include <media/s3c_fimc.h>
#include <linux/videodev2.h>
#include "regs-fimc.h"
@@ -23,31 +28,66 @@
#ifdef DEBUG
#define dbg(fmt, args...) \
- printk(KERN_DEBUG "%s:%d: " fmt "\n", __func__, __LINE__, ##args)
+ printk(KERN_ERR "%s:%d: " fmt "\n", __func__, __LINE__, ##args)
+
+#define assert(cond) do { \
+ if (!(cond)) { \
+ printk(KERN_CRIT "BUG at %s:%d assert(%s)\n", \
+ __FILE__, __LINE__, #cond); \
+ BUG(); \
+ } \
+} while (0)
#else
#define dbg(fmt, args...)
+#define assert(cond)
#endif
+
+/* Time to wait for next frame VSYNC interrupt while stoping operation. */
+#define FIMC_SHUTDOWN_TIMEOUT ((100*HZ)/1000)
#define NUM_FIMC_CLOCKS 2
#define MODULE_NAME "s5p-fimc"
#define FIMC_MAX_DEVS 3
#define FIMC_MAX_OUT_BUFS 4
#define SCALER_MAX_HRATIO 64
#define SCALER_MAX_VRATIO 64
+#define DMA_MIN_SIZE 16
-enum {
+/* FIMC device state flags */
+enum fimc_dev_flags {
+ /* for m2m node */
ST_IDLE,
ST_OUTDMA_RUN,
ST_M2M_PEND,
+ /* for capture node */
+ ST_CAPT_PEND,
+ ST_CAPT_RUN,
+ ST_CAPT_STREAM,
+ ST_CAPT_SHUT,
};
#define fimc_m2m_active(dev) test_bit(ST_OUTDMA_RUN, &(dev)->state)
#define fimc_m2m_pending(dev) test_bit(ST_M2M_PEND, &(dev)->state)
+#define fimc_capture_running(dev) test_bit(ST_CAPT_RUN, &(dev)->state)
+#define fimc_capture_pending(dev) test_bit(ST_CAPT_PEND, &(dev)->state)
+
+#define fimc_capture_active(dev) \
+ (test_bit(ST_CAPT_RUN, &(dev)->state) || \
+ test_bit(ST_CAPT_PEND, &(dev)->state))
+
+#define fimc_capture_streaming(dev) \
+ test_bit(ST_CAPT_STREAM, &(dev)->state)
+
+#define fimc_buf_finish(dev, vid_buf) do { \
+ spin_lock(&(dev)->irqlock); \
+ (vid_buf)->vb.state = VIDEOBUF_DONE; \
+ spin_unlock(&(dev)->irqlock); \
+ wake_up(&(vid_buf)->vb.done); \
+} while (0)
+
enum fimc_datapath {
- FIMC_ITU_CAM_A,
- FIMC_ITU_CAM_B,
- FIMC_MIPI_CAM,
+ FIMC_CAMERA,
FIMC_DMA,
FIMC_LCDFIFO,
FIMC_WRITEBACK
@@ -93,11 +133,13 @@ enum fimc_color_fmt {
#define S5P_FIMC_EFFECT_SIKHOUETTE S5P_CIIMGEFF_FIN_SILHOUETTE
/* The hardware context state. */
-#define FIMC_PARAMS (1 << 0)
-#define FIMC_SRC_ADDR (1 << 1)
-#define FIMC_DST_ADDR (1 << 2)
-#define FIMC_SRC_FMT (1 << 3)
-#define FIMC_DST_FMT (1 << 4)
+#define FIMC_PARAMS (1 << 0)
+#define FIMC_SRC_ADDR (1 << 1)
+#define FIMC_DST_ADDR (1 << 2)
+#define FIMC_SRC_FMT (1 << 3)
+#define FIMC_DST_FMT (1 << 4)
+#define FIMC_CTX_M2M (1 << 5)
+#define FIMC_CTX_CAP (1 << 6)
/* Image conversion flags */
#define FIMC_IN_DMA_ACCESS_TILED (1 << 0)
@@ -118,20 +160,25 @@ enum fimc_color_fmt {
/**
* struct fimc_fmt - the driver's internal color format data
+ * @mbus_code: Media Bus pixel code, -1 if not applicable
* @name: format description
- * @fourcc: the fourcc code for this format
+ * @fourcc: the fourcc code for this format, 0 if not applicable
* @color: the corresponding fimc_color_fmt
- * @depth: number of bits per pixel
+ * @depth: driver's private 'number of bits per pixel'
* @buff_cnt: number of physically non-contiguous data planes
* @planes_cnt: number of physically contiguous data planes
*/
struct fimc_fmt {
+ enum v4l2_mbus_pixelcode mbus_code;
char *name;
u32 fourcc;
u32 color;
- u32 depth;
u16 buff_cnt;
u16 planes_cnt;
+ u16 depth;
+ u16 flags;
+#define FMT_FLAGS_CAM (1 << 0)
+#define FMT_FLAGS_M2M (1 << 1)
};
/**
@@ -184,7 +231,6 @@ struct fimc_effect {
* and color format conversion
*/
struct fimc_scaler {
- u32 enabled;
u32 hfactor;
u32 vfactor;
u32 pre_hratio;
@@ -197,7 +243,8 @@ struct fimc_scaler {
u32 main_vratio;
u32 real_width;
u32 real_height;
- u32 copy_mode;
+ u16 copy_mode;
+ u16 enabled;
};
/**
@@ -215,15 +262,17 @@ struct fimc_addr {
/**
* struct fimc_vid_buffer - the driver's video buffer
+ *
* @vb: v4l videobuf buffer
*/
struct fimc_vid_buffer {
struct videobuf_buffer vb;
+ struct fimc_addr paddr;
+ int index;
};
/**
- * struct fimc_frame - input/output frame format properties
- *
+ * struct fimc_frame - source/target frame properties
* @f_width: image full width (virtual screen size)
* @f_height: image full height (virtual screen size)
* @o_width: original image width as set by S_FMT
@@ -270,6 +319,40 @@ struct fimc_m2m_device {
};
/**
+ * struct fimc_vid_cap - camera capture device information
+ * @ctx: hardware context data
+ * @vfd: video device node for camera capture mode
+ * @v4l2_dev: v4l2_device struct to manage subdevs
+ * @sd: pointer to camera sensor subdevice currently in use
+ * @fmt: Media Bus format configured at selected image sensor
+ * @pending_buf_q: the pending buffer queue head
+ * @active_buf_q: the queue head of buffers scheduled in hardware
+ * @vbq: the capture am video buffer queue
+ * @active_buf_cnt: number of video buffers scheduled in hardware
+ * @buf_index: index for managing the output DMA buffers
+ * @frame_count: the frame counter for statistics
+ * @reqbufs_count: the number of buffers requested in REQBUFS ioctl
+ * @input_index: input (camera sensor) index
+ * @refcnt: driver's private reference counter
+ */
+struct fimc_vid_cap {
+ struct fimc_ctx *ctx;
+ struct video_device *vfd;
+ struct v4l2_device v4l2_dev;
+ struct v4l2_subdev *sd;
+ struct v4l2_mbus_framefmt fmt;
+ struct list_head pending_buf_q;
+ struct list_head active_buf_q;
+ struct videobuf_queue vbq;
+ int active_buf_cnt;
+ int buf_index;
+ unsigned int frame_count;
+ unsigned int reqbufs_count;
+ int input_index;
+ int refcnt;
+};
+
+/**
* struct samsung_fimc_variant - camera interface variant information
*
* @pix_hoff: indicate whether horizontal offset is in pixels or in bytes
@@ -279,10 +362,10 @@ struct fimc_m2m_device {
* @min_out_pixsize: minimum output pixel size
* @scaler_en_w: maximum input pixel width when the scaler is enabled
* @scaler_dis_w: maximum input pixel width when the scaler is disabled
- * @in_rot_en_h: maximum input width when the input rotator is used
- * @in_rot_dis_w: maximum input width when the input rotator is used
- * @out_rot_en_w: maximum output width for the output rotator enabled
- * @out_rot_dis_w: maximum output width for the output rotator enabled
+ * @in_rot_en_h: maximum input width when the input rotator is enabled
+ * @in_rot_dis_w: maximum input width when the input rotator is disabled
+ * @out_rot_en_w: maximum target width when the output rotator enabled
+ * @out_rot_dis_w: maximum target width when the output rotator disnabled
*/
struct samsung_fimc_variant {
unsigned int pix_hoff:1;
@@ -300,37 +383,43 @@ struct samsung_fimc_variant {
};
/**
- * struct samsung_fimc_driverdata - per-device type driver data for init time.
+ * struct samsung_fimc_driverdata - per device type driver data for init time.
*
* @variant: the variant information for this driver.
* @dev_cnt: number of fimc sub-devices available in SoC
+ * @lclk_frequency: fimc bus clock frequency
*/
struct samsung_fimc_driverdata {
struct samsung_fimc_variant *variant[FIMC_MAX_DEVS];
- int devs_cnt;
+ unsigned long lclk_frequency;
+ int devs_cnt;
};
struct fimc_ctx;
/**
- * struct fimc_subdev - abstraction for a FIMC entity
+ * struct fimc_dev - abstraction for FIMC entity
*
* @slock: the spinlock protecting this data structure
* @lock: the mutex protecting this data structure
* @pdev: pointer to the FIMC platform device
+ * @pdata: pointer to the device platform data
* @id: FIMC device index (0..2)
* @clock[]: the clocks required for FIMC operation
* @regs: the mapped hardware registers
* @regs_res: the resource claimed for IO registers
* @irq: interrupt number of the FIMC subdevice
- * @irqlock: spinlock protecting videbuffer queue
+ * @irqlock: spinlock protecting videobuffer queue
+ * @irq_queue:
* @m2m: memory-to-memory V4L2 device information
+ * @cap: camera capture device information
* @state: the FIMC device state flags
*/
struct fimc_dev {
spinlock_t slock;
struct mutex lock;
struct platform_device *pdev;
+ struct s3c_platform_fimc *pdata;
struct samsung_fimc_variant *variant;
int id;
struct clk *clock[NUM_FIMC_CLOCKS];
@@ -338,8 +427,9 @@ struct fimc_dev {
struct resource *regs_res;
int irq;
spinlock_t irqlock;
- struct workqueue_struct *work_queue;
+ wait_queue_head_t irq_queue;
struct fimc_m2m_device m2m;
+ struct fimc_vid_cap vid_cap;
unsigned long state;
};
@@ -359,7 +449,7 @@ struct fimc_dev {
* @effect: image effect
* @rotation: image clockwise rotation in degrees
* @flip: image flip mode
- * @flags: an additional flags for image conversion
+ * @flags: additional flags for image conversion
* @state: flags to keep track of user configuration
* @fimc_dev: the FIMC device this context applies to
* @m2m_ctx: memory-to-memory device context
@@ -384,6 +474,7 @@ struct fimc_ctx {
struct v4l2_m2m_ctx *m2m_ctx;
};
+extern struct videobuf_queue_ops fimc_qops;
static inline int tiled_fmt(struct fimc_fmt *fmt)
{
@@ -397,18 +488,24 @@ static inline void fimc_hw_clear_irq(struct fimc_dev *dev)
writel(cfg, dev->regs + S5P_CIGCTRL);
}
-static inline void fimc_hw_start_scaler(struct fimc_dev *dev)
+static inline void fimc_hw_enable_scaler(struct fimc_dev *dev, bool on)
{
u32 cfg = readl(dev->regs + S5P_CISCCTRL);
- cfg |= S5P_CISCCTRL_SCALERSTART;
+ if (on)
+ cfg |= S5P_CISCCTRL_SCALERSTART;
+ else
+ cfg &= ~S5P_CISCCTRL_SCALERSTART;
writel(cfg, dev->regs + S5P_CISCCTRL);
}
-static inline void fimc_hw_stop_scaler(struct fimc_dev *dev)
+static inline void fimc_hw_activate_input_dma(struct fimc_dev *dev, bool on)
{
- u32 cfg = readl(dev->regs + S5P_CISCCTRL);
- cfg &= ~S5P_CISCCTRL_SCALERSTART;
- writel(cfg, dev->regs + S5P_CISCCTRL);
+ u32 cfg = readl(dev->regs + S5P_MSCTRL);
+ if (on)
+ cfg |= S5P_MSCTRL_ENVID;
+ else
+ cfg &= ~S5P_MSCTRL_ENVID;
+ writel(cfg, dev->regs + S5P_MSCTRL);
}
static inline void fimc_hw_dis_capture(struct fimc_dev *dev)
@@ -418,21 +515,7 @@ static inline void fimc_hw_dis_capture(struct fimc_dev *dev)
writel(cfg, dev->regs + S5P_CIIMGCPT);
}
-static inline void fimc_hw_start_in_dma(struct fimc_dev *dev)
-{
- u32 cfg = readl(dev->regs + S5P_MSCTRL);
- cfg |= S5P_MSCTRL_ENVID;
- writel(cfg, dev->regs + S5P_MSCTRL);
-}
-
-static inline void fimc_hw_stop_in_dma(struct fimc_dev *dev)
-{
- u32 cfg = readl(dev->regs + S5P_MSCTRL);
- cfg &= ~S5P_MSCTRL_ENVID;
- writel(cfg, dev->regs + S5P_MSCTRL);
-}
-
-static inline struct fimc_frame *ctx_m2m_get_frame(struct fimc_ctx *ctx,
+static inline struct fimc_frame *ctx_get_frame(struct fimc_ctx *ctx,
enum v4l2_buf_type type)
{
struct fimc_frame *frame;
@@ -450,22 +533,126 @@ static inline struct fimc_frame *ctx_m2m_get_frame(struct fimc_ctx *ctx,
return frame;
}
+static inline u32 fimc_hw_get_frame_index(struct fimc_dev *dev)
+{
+ u32 reg = readl(dev->regs + S5P_CISTATUS);
+ return (reg & S5P_CISTATUS_FRAMECNT_MASK) >>
+ S5P_CISTATUS_FRAMECNT_SHIFT;
+}
+
/* -----------------------------------------------------*/
/* fimc-reg.c */
-void fimc_hw_reset(struct fimc_dev *dev);
+void fimc_hw_reset(struct fimc_dev *fimc);
void fimc_hw_set_rotation(struct fimc_ctx *ctx);
void fimc_hw_set_target_format(struct fimc_ctx *ctx);
void fimc_hw_set_out_dma(struct fimc_ctx *ctx);
-void fimc_hw_en_lastirq(struct fimc_dev *dev, int enable);
-void fimc_hw_en_irq(struct fimc_dev *dev, int enable);
-void fimc_hw_set_prescaler(struct fimc_ctx *ctx);
+void fimc_hw_en_lastirq(struct fimc_dev *fimc, int enable);
+void fimc_hw_en_irq(struct fimc_dev *fimc, int enable);
void fimc_hw_set_scaler(struct fimc_ctx *ctx);
void fimc_hw_en_capture(struct fimc_ctx *ctx);
void fimc_hw_set_effect(struct fimc_ctx *ctx);
void fimc_hw_set_in_dma(struct fimc_ctx *ctx);
void fimc_hw_set_input_path(struct fimc_ctx *ctx);
void fimc_hw_set_output_path(struct fimc_ctx *ctx);
-void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *paddr);
-void fimc_hw_set_output_addr(struct fimc_dev *dev, struct fimc_addr *paddr);
+void fimc_hw_set_input_addr(struct fimc_dev *fimc, struct fimc_addr *paddr);
+void fimc_hw_set_output_addr(struct fimc_dev *fimc, struct fimc_addr *paddr,
+ int index);
+void fimc_hw_shadow_dis(struct fimc_dev *ctx, int off);
+int fimc_hw_set_camera_source(struct fimc_dev *fimc,
+ struct s3c_fimc_isp_info *cam);
+int fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f);
+int fimc_hw_set_camera_polarity(struct fimc_dev *fimc,
+ struct s3c_fimc_isp_info *cam);
+int fimc_hw_set_camera_type(struct fimc_dev *fimc,
+ struct s3c_fimc_isp_info *cam);
+
+/* -----------------------------------------------------*/
+/* fimc-core.c */
+int fimc_set_scaler_info(struct fimc_ctx *ctx);
+struct fimc_fmt *find_format(struct v4l2_format *f, unsigned int mask);
+struct fimc_fmt *find_mbus_format(struct v4l2_mbus_framefmt *f,
+ unsigned int mask);
+int fimc_m2m_enum_fmt(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f);
+int fimc_m2m_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qc);
+int fimc_m2m_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl);
+int check_ctrl_val(struct fimc_ctx *ctx, struct v4l2_control *ctrl);
+int fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_control *ctrl);
+int fimc_check_scaler_ratio(struct v4l2_rect *r, struct fimc_frame *f);
+int fimc_prepare_addr(struct fimc_ctx *ctx, struct fimc_vid_buffer *buf,
+ struct fimc_frame *frame, struct fimc_addr *paddr);
+int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags);
+
+/* -----------------------------------------------------*/
+/* fimc-capture.c */
+int fimc_register_capture_device(struct fimc_dev *fimc);
+void fimc_unregister_capture_device(struct fimc_dev *fimc);
+int fimc_sensor_sd_init(struct fimc_dev *fimc, int index);
+int fimc_vid_cap_buf_queue(struct fimc_dev *fimc,
+ struct fimc_vid_buffer *fimc_vb);
+
+/* Locking: the caller holds fimc->slock */
+static inline void fimc_activate_capture(struct fimc_ctx *ctx)
+{
+ fimc_hw_enable_scaler(ctx->fimc_dev, ctx->scaler.enabled);
+ fimc_hw_en_capture(ctx);
+}
+
+static inline void fimc_deactivate_capture(struct fimc_dev *fimc)
+{
+ fimc_hw_en_lastirq(fimc, true);
+ fimc_hw_dis_capture(fimc);
+ fimc_hw_enable_scaler(fimc, false);
+ fimc_hw_en_lastirq(fimc, false);
+}
+
+/*
+ * Add video buffer to the active buffers queue.
+ * The caller holds irqlock spinlock.
+ */
+static inline void active_queue_add(struct fimc_vid_cap *vid_cap,
+ struct fimc_vid_buffer *buf)
+{
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ list_add_tail(&buf->vb.queue, &vid_cap->active_buf_q);
+ vid_cap->active_buf_cnt++;
+}
+
+/*
+ * Pop a video buffer from the capture active buffers queue
+ * Locking: Need to be called with dev->slock held.
+ */
+static inline struct fimc_vid_buffer *
+active_queue_pop(struct fimc_vid_cap *vid_cap)
+{
+ struct fimc_vid_buffer *buf;
+ buf = list_entry(vid_cap->active_buf_q.next,
+ struct fimc_vid_buffer, vb.queue);
+ list_del(&buf->vb.queue);
+ vid_cap->active_buf_cnt--;
+ return buf;
+}
+
+/* Add video buffer to the capture pending buffers queue */
+static inline void fimc_pending_queue_add(struct fimc_vid_cap *vid_cap,
+ struct fimc_vid_buffer *buf)
+{
+ buf->vb.state = VIDEOBUF_QUEUED;
+ list_add_tail(&buf->vb.queue, &vid_cap->pending_buf_q);
+}
+
+/* Add video buffer to the capture pending buffers queue */
+static inline struct fimc_vid_buffer *
+pending_queue_pop(struct fimc_vid_cap *vid_cap)
+{
+ struct fimc_vid_buffer *buf;
+ buf = list_entry(vid_cap->pending_buf_q.next,
+ struct fimc_vid_buffer, vb.queue);
+ list_del(&buf->vb.queue);
+ return buf;
+}
+
#endif /* FIMC_CORE_H_ */
@@ -13,6 +13,7 @@
#include <linux/io.h>
#include <linux/delay.h>
#include <mach/map.h>
+#include <media/s3c_fimc.h>
#include "fimc-core.h"
@@ -29,7 +30,7 @@ void fimc_hw_reset(struct fimc_dev *dev)
cfg = readl(dev->regs + S5P_CIGCTRL);
cfg |= (S5P_CIGCTRL_SWRST | S5P_CIGCTRL_IRQ_LEVEL);
writel(cfg, dev->regs + S5P_CIGCTRL);
- msleep(1);
+ usleep_range(1000, 5000);
cfg = readl(dev->regs + S5P_CIGCTRL);
cfg &= ~S5P_CIGCTRL_SWRST;
@@ -43,7 +44,8 @@ void fimc_hw_set_rotation(struct fimc_ctx *ctx)
struct fimc_dev *dev = ctx->fimc_dev;
cfg = readl(dev->regs + S5P_CITRGFMT);
- cfg &= ~(S5P_CITRGFMT_INROT90 | S5P_CITRGFMT_OUTROT90);
+ cfg &= ~(S5P_CITRGFMT_INROT90 | S5P_CITRGFMT_OUTROT90 |
+ S5P_CITRGFMT_FLIP_180);
flip = readl(dev->regs + S5P_MSCTRL);
flip &= ~S5P_MSCTRL_FLIP_MASK;
@@ -177,6 +179,15 @@ static void fimc_hw_set_out_dma_size(struct fimc_ctx *ctx)
cfg |= S5P_ORIG_SIZE_VER(frame->f_height);
}
writel(cfg, dev->regs + S5P_ORGOSIZE);
+
+ /* Select color space conversion equation (HD/SD size).*/
+ cfg = readl(dev->regs + S5P_CIGCTRL);
+ if (frame->f_width >= 1280) /* HD */
+ cfg |= S5P_CIGCTRL_CSC_ITU601_709;
+ else /* SD */
+ cfg &= ~S5P_CIGCTRL_CSC_ITU601_709;
+ writel(cfg, dev->regs + S5P_CIGCTRL);
+
}
void fimc_hw_set_out_dma(struct fimc_ctx *ctx)
@@ -232,22 +243,15 @@ static void fimc_hw_en_autoload(struct fimc_dev *dev, int enable)
void fimc_hw_en_lastirq(struct fimc_dev *dev, int enable)
{
- unsigned long flags;
- u32 cfg;
-
- spin_lock_irqsave(&dev->slock, flags);
-
- cfg = readl(dev->regs + S5P_CIOCTRL);
+ u32 cfg = readl(dev->regs + S5P_CIOCTRL);
if (enable)
cfg |= S5P_CIOCTRL_LASTIRQ_ENABLE;
else
cfg &= ~S5P_CIOCTRL_LASTIRQ_ENABLE;
writel(cfg, dev->regs + S5P_CIOCTRL);
-
- spin_unlock_irqrestore(&dev->slock, flags);
}
-void fimc_hw_set_prescaler(struct fimc_ctx *ctx)
+static void fimc_hw_set_prescaler(struct fimc_ctx *ctx)
{
struct fimc_dev *dev = ctx->fimc_dev;
struct fimc_scaler *sc = &ctx->scaler;
@@ -274,6 +278,8 @@ void fimc_hw_set_scaler(struct fimc_ctx *ctx)
struct fimc_frame *dst_frame = &ctx->d_frame;
u32 cfg = 0;
+ fimc_hw_set_prescaler(ctx);
+
if (!(ctx->flags & FIMC_COLOR_RANGE_NARROW))
cfg |= (S5P_CISCCTRL_CSCR2Y_WIDE | S5P_CISCCTRL_CSCY2R_WIDE);
@@ -325,14 +331,18 @@ void fimc_hw_set_scaler(struct fimc_ctx *ctx)
void fimc_hw_en_capture(struct fimc_ctx *ctx)
{
struct fimc_dev *dev = ctx->fimc_dev;
- u32 cfg;
- cfg = readl(dev->regs + S5P_CIIMGCPT);
- /* One shot mode for output DMA or freerun for FIFO. */
- if (ctx->out_path == FIMC_DMA)
- cfg |= S5P_CIIMGCPT_CPT_FREN_ENABLE;
- else
- cfg &= ~S5P_CIIMGCPT_CPT_FREN_ENABLE;
+ u32 cfg = readl(dev->regs + S5P_CIIMGCPT);
+
+ if (ctx->out_path == FIMC_DMA) {
+ /* one shot mode */
+ cfg |= S5P_CIIMGCPT_CPT_FREN_ENABLE | S5P_CIIMGCPT_IMGCPTEN;
+ } else {
+ /* Continous frame capture mode (freerun). */
+ cfg &= ~(S5P_CIIMGCPT_CPT_FREN_ENABLE |
+ S5P_CIIMGCPT_CPT_FRMOD_CNT);
+ cfg |= S5P_CIIMGCPT_IMGCPTEN;
+ }
if (ctx->scaler.enabled)
cfg |= S5P_CIIMGCPT_IMGCPTEN_SC;
@@ -501,9 +511,7 @@ void fimc_hw_set_output_path(struct fimc_ctx *ctx)
void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *paddr)
{
- u32 cfg = 0;
-
- cfg = readl(dev->regs + S5P_CIREAL_ISIZE);
+ u32 cfg = readl(dev->regs + S5P_CIREAL_ISIZE);
cfg |= S5P_CIREAL_ISIZE_ADDR_CH_DIS;
writel(cfg, dev->regs + S5P_CIREAL_ISIZE);
@@ -515,13 +523,149 @@ void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *paddr)
writel(cfg, dev->regs + S5P_CIREAL_ISIZE);
}
-void fimc_hw_set_output_addr(struct fimc_dev *dev, struct fimc_addr *paddr)
+void fimc_hw_set_output_addr(struct fimc_dev *dev,
+ struct fimc_addr *paddr, int index)
{
- int i;
- /* Set all the output register sets to point to single video buffer. */
- for (i = 0; i < FIMC_MAX_OUT_BUFS; i++) {
+ int i = (index == -1) ? 0 : index;
+ do {
writel(paddr->y, dev->regs + S5P_CIOYSA(i));
writel(paddr->cb, dev->regs + S5P_CIOCBSA(i));
writel(paddr->cr, dev->regs + S5P_CIOCRSA(i));
+ dbg("dst_buf[%d]: 0x%X, cb: 0x%X, cr: 0x%X",
+ i, paddr->y, paddr->cb, paddr->cr);
+ } while (index == -1 && ++i < FIMC_MAX_OUT_BUFS);
+}
+
+int fimc_hw_set_camera_polarity(struct fimc_dev *fimc,
+ struct s3c_fimc_isp_info *cam)
+{
+ u32 cfg = readl(fimc->regs + S5P_CIGCTRL);
+
+ cfg &= ~(S5P_CIGCTRL_INVPOLPCLK | S5P_CIGCTRL_INVPOLVSYNC |
+ S5P_CIGCTRL_INVPOLHREF | S5P_CIGCTRL_INVPOLHSYNC);
+
+ if (cam->flags & FIMC_CLK_INV_PCLK)
+ cfg |= S5P_CIGCTRL_INVPOLPCLK;
+
+ if (cam->flags & FIMC_CLK_INV_VSYNC)
+ cfg |= S5P_CIGCTRL_INVPOLVSYNC;
+
+ if (cam->flags & FIMC_CLK_INV_HREF)
+ cfg |= S5P_CIGCTRL_INVPOLHREF;
+
+ if (cam->flags & FIMC_CLK_INV_HSYNC)
+ cfg |= S5P_CIGCTRL_INVPOLHSYNC;
+
+ writel(cfg, fimc->regs + S5P_CIGCTRL);
+
+ return 0;
+}
+
+int fimc_hw_set_camera_source(struct fimc_dev *fimc,
+ struct s3c_fimc_isp_info *cam)
+{
+ struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame;
+ u32 cfg = 0;
+
+ if (cam->bus_type == FIMC_ITU_601 || cam->bus_type == FIMC_ITU_656) {
+
+ switch (fimc->vid_cap.fmt.code) {
+ case V4L2_MBUS_FMT_YUYV8_2X8:
+ cfg = S5P_CISRCFMT_ORDER422_YCBYCR;
+ break;
+ case V4L2_MBUS_FMT_YVYU8_2X8:
+ cfg = S5P_CISRCFMT_ORDER422_YCRYCB;
+ break;
+ case V4L2_MBUS_FMT_VYUY8_2X8:
+ cfg = S5P_CISRCFMT_ORDER422_CBYCRY;
+ break;
+ case V4L2_MBUS_FMT_UYVY8_2X8:
+ cfg = S5P_CISRCFMT_ORDER422_CRYCBY;
+ break;
+ default:
+ err("camera image format not supported: %d",
+ fimc->vid_cap.fmt.code);
+ return -EINVAL;
+ }
+
+ if (cam->bus_type == FIMC_ITU_601) {
+ if (cam->bus_width == 8) {
+ cfg |= S5P_CISRCFMT_ITU601_8BIT;
+ } else if (cam->bus_width == 16) {
+ cfg |= S5P_CISRCFMT_ITU601_16BIT;
+ } else {
+ err("invalid bus width: %d", cam->bus_width);
+ return -EINVAL;
+ }
+ } /* else defaults to ITU-R BT.656 8-bit */
+ }
+
+ cfg |= S5P_CISRCFMT_HSIZE(f->width) | S5P_CISRCFMT_VSIZE(f->height);
+ writel(cfg, fimc->regs + S5P_CISRCFMT);
+
+ return 0;
+}
+
+int fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f)
+{
+ u32 hoff2, voff2;
+
+ u32 cfg = readl(fimc->regs + S5P_CIWDOFST);
+ cfg &= ~(S5P_CIWDOFST_HOROFF_MASK | S5P_CIWDOFST_VEROFF_MASK);
+ cfg |= S5P_CIWDOFST_OFF_EN |
+ S5P_CIWDOFST_HOROFF(f->offs_h) | S5P_CIWDOFST_VEROFF(f->offs_v);
+ writel(cfg, fimc->regs + S5P_CIWDOFST);
+
+ /* See CIWDOFSTn register description in the datasheet for details. */
+ hoff2 = f->o_width - f->width - f->offs_h;
+ voff2 = f->o_height - f->height - f->offs_v;
+
+ cfg = S5P_CIWDOFST2_HOROFF(hoff2) | S5P_CIWDOFST2_VEROFF(voff2);
+ writel(cfg, fimc->regs + S5P_CIWDOFST2);
+
+ return 0;
+}
+
+int fimc_hw_set_camera_type(struct fimc_dev *fimc,
+ struct s3c_fimc_isp_info *cam)
+{
+ u32 cfg, tmp;
+ struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+
+ cfg = readl(fimc->regs + S5P_CIGCTRL);
+
+ /* Select ITU B interface, disable Writeback path and test pattern. */
+ cfg &= ~(S5P_CIGCTRL_TESTPAT_MASK | S5P_CIGCTRL_SELCAM_ITU_A |
+ S5P_CIGCTRL_SELCAM_MIPI | S5P_CIGCTRL_CAMIF_SELWB |
+ S5P_CIGCTRL_SELCAM_MIPI_A);
+
+ /* Camera bus selection. */
+ if (cam->bus_type == FIMC_MIPI_CSI2) {
+ cfg |= S5P_CIGCTRL_SELCAM_MIPI;
+ if (cam->mux_id == 0)
+ cfg |= S5P_CIGCTRL_SELCAM_MIPI_A;
+
+ /* TODO: add remaining formats supported by FIMC. */
+ if (vid_cap->fmt.code == V4L2_MBUS_FMT_VYUY8_2X8) {
+ tmp = S5P_CSIIMGFMT_YCBCR422_8BIT;
+ } else {
+ err("camera image format not supported: %d",
+ vid_cap->fmt.code);
+ return -EINVAL;
+ }
+ writel(tmp | (0x1 << 8), fimc->regs + S5P_CSIIMGFMT);
+
+ } else if (cam->bus_type == FIMC_ITU_601 ||
+ cam->bus_type == FIMC_ITU_656) {
+ if (cam->mux_id == 0) /* ITU-A, ITU-B: 0, 1 */
+ cfg |= S5P_CIGCTRL_SELCAM_ITU_A;
+ } else if (cam->bus_type == FIMC_LCD_WB) {
+ cfg |= S5P_CIGCTRL_CAMIF_SELWB;
+ } else {
+ err("invalid camera bus type selected\n");
+ return -EINVAL;
}
+ writel(cfg, fimc->regs + S5P_CIGCTRL);
+
+ return 0;
}
@@ -24,22 +24,21 @@
/* Window offset */
#define S5P_CIWDOFST 0x04
-#define S5P_CIWDOFST_WINOFSEN (1 << 31)
+#define S5P_CIWDOFST_OFF_EN (1 << 31)
#define S5P_CIWDOFST_CLROVFIY (1 << 30)
#define S5P_CIWDOFST_CLROVRLB (1 << 29)
-#define S5P_CIWDOFST_WINHOROFST_MASK (0x7ff << 16)
+#define S5P_CIWDOFST_HOROFF_MASK (0x7ff << 16)
#define S5P_CIWDOFST_CLROVFICB (1 << 15)
#define S5P_CIWDOFST_CLROVFICR (1 << 14)
-#define S5P_CIWDOFST_WINHOROFST(x) ((x) << 16)
-#define S5P_CIWDOFST_WINVEROFST(x) ((x) << 0)
-#define S5P_CIWDOFST_WINVEROFST_MASK (0xfff << 0)
+#define S5P_CIWDOFST_HOROFF(x) ((x) << 16)
+#define S5P_CIWDOFST_VEROFF(x) ((x) << 0)
+#define S5P_CIWDOFST_VEROFF_MASK (0xfff << 0)
/* Global control */
#define S5P_CIGCTRL 0x08
#define S5P_CIGCTRL_SWRST (1 << 31)
#define S5P_CIGCTRL_CAMRST_A (1 << 30)
#define S5P_CIGCTRL_SELCAM_ITU_A (1 << 29)
-#define S5P_CIGCTRL_SELCAM_ITU_MASK (1 << 29)
#define S5P_CIGCTRL_TESTPAT_NORMAL (0 << 27)
#define S5P_CIGCTRL_TESTPAT_COLOR_BAR (1 << 27)
#define S5P_CIGCTRL_TESTPAT_HOR_INC (2 << 27)
@@ -57,6 +56,8 @@
#define S5P_CIGCTRL_SHDW_DISABLE (1 << 12)
#define S5P_CIGCTRL_SELCAM_MIPI_A (1 << 7)
#define S5P_CIGCTRL_CAMIF_SELWB (1 << 6)
+/* 0 - ITU601; 1 - ITU709 */
+#define S5P_CIGCTRL_CSC_ITU601_709 (1 << 5)
#define S5P_CIGCTRL_INVPOLHSYNC (1 << 4)
#define S5P_CIGCTRL_SELCAM_MIPI (1 << 3)
#define S5P_CIGCTRL_INTERLACE (1 << 0)
@@ -151,6 +152,8 @@
#define S5P_CISTATUS_OVFICB (1 << 30)
#define S5P_CISTATUS_OVFICR (1 << 29)
#define S5P_CISTATUS_VSYNC (1 << 28)
+#define S5P_CISTATUS_FRAMECNT_MASK (3 << 26)
+#define S5P_CISTATUS_FRAMECNT_SHIFT 26
#define S5P_CISTATUS_WINOFF_EN (1 << 25)
#define S5P_CISTATUS_IMGCPT_EN (1 << 22)
#define S5P_CISTATUS_IMGCPT_SCEN (1 << 21)
@@ -267,5 +270,13 @@
/* MIPI CSI image format */
#define S5P_CSIIMGFMT 0x194
+#define S5P_CSIIMGFMT_YCBCR422_8BIT 0x1e
+#define S5P_CSIIMGFMT_RAW8 0x2a
+#define S5P_CSIIMGFMT_RAW10 0x2b
+#define S5P_CSIIMGFMT_RAW12 0x2c
+#define S5P_CSIIMGFMT_USER1 0x30
+#define S5P_CSIIMGFMT_USER2 0x31
+#define S5P_CSIIMGFMT_USER3 0x32
+#define S5P_CSIIMGFMT_USER4 0x33
#endif /* REGS_FIMC_H_ */
new file mode 100644
@@ -0,0 +1,48 @@
+/*
+ * Samsung S5P SoC camera interface driver header
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd
+ * Author: Sylwester Nawrocki, <s.nawrocki@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef S3C_FIMC_H_
+#define S3C_FIMC_H_
+
+enum cam_bus_type {
+ FIMC_ITU_601 = 1,
+ FIMC_ITU_656,
+ FIMC_MIPI_CSI2,
+ FIMC_LCD_WB, /* FIFO link from LCD mixer */
+};
+
+#define FIMC_CLK_INV_PCLK (1 << 0)
+#define FIMC_CLK_INV_VSYNC (1 << 1)
+#define FIMC_CLK_INV_HREF (1 << 2)
+#define FIMC_CLK_INV_HSYNC (1 << 3)
+
+struct i2c_board_info;
+
+/**
+ * struct s3c_fimc_isp_info - image sensor information required for host
+ * interace configuration.
+ *
+ * @bus_type: determines bus type, MIPI, ITU-R BT.601 etc.
+ * @mux_id: FIMC camera interface multiplexer index (separate for MIPI and ITU)
+ * @bus_width: camera data bus width in bits
+ * @flags: flags defining bus signals polarity inversion (High by default)
+ * @board_info: pointer to I2C subdevice's board info
+ */
+struct s3c_fimc_isp_info {
+ struct i2c_board_info *board_info;
+ int i2c_bus_num;
+ enum cam_bus_type bus_type;
+ int mux_id;
+ u16 bus_width;
+ u16 flags;
+};
+
+#endif /* S3C_FIMC_H_ */