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
--- /dev/null
+/*
+ * 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_CAMIF_CLIENTS; ++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 *isp_info;
+ int ret;
+
+ ret = fimc_subdev_attach(fimc, index);
+ if (ret)
+ return ret;
+
+ isp_info = fimc->pdata->isp_info[fimc->vid_cap.input_index];
+ ret = fimc_hw_set_camera_polarity(fimc, isp_info);
+ 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;
+
+ BUG_ON(!fimc || !fimc_vb);
+
+ 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;
+
+ dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
+
+ /* Return if the corresponding video mem2mem node is already opened. */
+ if (fimc_m2m_active(fimc))
+ return -EBUSY;
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ if (++fimc->vid_cap.refcnt == 1) {
+ ret = fimc_isp_subdev_init(fimc, -1);
+ if (ret) {
+ fimc->vid_cap.refcnt--;
+ ret = -EIO;
+ }
+ }
+
+ 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);
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
+
+ if (--fimc->vid_cap.refcnt == 0) {
+ fimc_stop_capture(fimc);
+
+ videobuf_stop(&fimc->vid_cap.vbq);
+ videobuf_mmap_free(&fimc->vid_cap.vbq);
+
+ 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)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct fimc_vid_cap *cap = &fimc->vid_cap;
+ int ret;
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return POLLERR;
+
+ ret = videobuf_poll_stream(file, &cap->vbq, wait);
+ mutex_unlock(&fimc->lock);
+
+ return ret;
+}
+
+static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct fimc_vid_cap *cap = &fimc->vid_cap;
+ int ret;
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ ret = videobuf_mmap_mapper(&cap->vbq, vma);
+ mutex_unlock(&fimc->lock);
+
+ return ret;
+}
+
+/* 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,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = fimc_capture_mmap,
+};
+
+static int fimc_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;
+}
+
+/* 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;
+ }
+ 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->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 fimc_cap_s_fmt(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 = fimc_vidioc_try_fmt(file, priv, f);
+ if (ret)
+ return ret;
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ 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;
+
+ ret = sync_capture_fmt(ctx);
+
+ ctx->state |= (FIMC_PARAMS | FIMC_DST_FMT);
+
+sf_unlock:
+ mutex_unlock(&fimc->lock);
+ return ret;
+}
+
+static int fimc_cap_enum_input(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;
+
+ if (i->index >= FIMC_MAX_CAMIF_CLIENTS)
+ return -EINVAL;
+
+ isp_info = pldata->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 fimc_cap_s_input(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;
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ if (i >= FIMC_MAX_CAMIF_CLIENTS || !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 fimc_cap_g_input(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 fimc_cap_streamon(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 = -EBUSY;
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ if (fimc_capture_active(fimc) || !fimc->vid_cap.sd)
+ 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;
+ }
+
+ ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_stream, 1);
+ if (ret && ret != -ENOIOCTLCMD)
+ goto s_unlock;
+
+ ret = fimc_prepare_config(ctx, ctx->state);
+ if (ret)
+ 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);
+
+ if (ctx->state & FIMC_PARAMS) {
+ ret = fimc_set_scaler_info(ctx);
+ if (ret) {
+ err("Scaler setup error");
+ goto s_unlock;
+ }
+ fimc_hw_set_input_path(ctx);
+ fimc_hw_set_scaler(ctx);
+ fimc_hw_set_target_format(ctx);
+ fimc_hw_set_rotation(ctx);
+ fimc_hw_set_effect(ctx);
+ }
+
+ fimc_hw_set_output_path(ctx);
+ 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 fimc_cap_streamoff(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);
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ fimc_stop_capture(fimc);
+ ret = videobuf_streamoff(&cap->vbq);
+ mutex_unlock(&fimc->lock);
+ return ret;
+}
+
+static int fimc_cap_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *reqbufs)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct fimc_vid_cap *cap = &fimc->vid_cap;
+ int ret;
+
+ if (fimc_capture_active(ctx->fimc_dev))
+ return -EBUSY;
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ ret = videobuf_reqbufs(&cap->vbq, reqbufs);
+ if (!ret)
+ cap->reqbufs_count = reqbufs->count;
+
+ mutex_unlock(&fimc->lock);
+ return ret;
+}
+
+static int fimc_cap_querybuf(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 fimc_cap_qbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct fimc_vid_cap *cap = &fimc->vid_cap;
+ int ret;
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ ret = videobuf_qbuf(&cap->vbq, buf);
+
+ mutex_unlock(&fimc->lock);
+ return ret;
+}
+
+static int fimc_cap_dqbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct fimc_ctx *ctx = priv;
+ int ret;
+
+ if (mutex_lock_interruptible(&ctx->fimc_dev->lock))
+ return -ERESTARTSYS;
+
+ ret = videobuf_dqbuf(&ctx->fimc_dev->vid_cap.vbq, buf,
+ file->f_flags & O_NONBLOCK);
+
+ mutex_unlock(&ctx->fimc_dev->lock);
+ return ret;
+}
+
+static int fimc_cap_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct fimc_ctx *ctx = priv;
+ int ret = -EINVAL;
+
+ if (mutex_lock_interruptible(&ctx->fimc_dev->lock))
+ return -ERESTARTSYS;
+
+ /* Allow any controls but 90/270 rotation while streaming */
+ if (!fimc_capture_active(ctx->fimc_dev) ||
+ ctrl->id != V4L2_CID_ROTATE ||
+ (ctrl->value != 90 && ctrl->value != 270)) {
+ ret = check_ctrl_val(ctx, ctrl);
+ if (!ret) {
+ ret = fimc_s_ctrl(ctx, ctrl);
+ if (!ret)
+ ctx->state |= FIMC_PARAMS;
+ }
+ }
+ if (ret == -EINVAL)
+ ret = v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd,
+ core, s_ctrl, ctrl);
+
+ mutex_unlock(&ctx->fimc_dev->lock);
+ return ret;
+}
+
+static int fimc_cap_s_crop(struct file *file, void *fh,
+ struct v4l2_crop *cr)
+{
+ struct fimc_frame *f;
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ int ret = -EINVAL;
+
+ if (fimc_capture_active(fimc))
+ return -EBUSY;
+
+ ret = fimc_try_crop(ctx, cr);
+ if (ret)
+ return ret;
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ if (!(ctx->state & FIMC_DST_FMT)) {
+ v4l2_err(&fimc->vid_cap.v4l2_dev,
+ "Capture color format not set\n");
+ goto sc_unlock;
+ }
+
+ f = &ctx->s_frame;
+ /* 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");
+ } else {
+ 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_unlock(&fimc->lock);
+ return ret;
+}
+
+
+static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
+ .vidioc_querycap = fimc_vidioc_querycap_capture,
+
+ .vidioc_enum_fmt_vid_cap = fimc_vidioc_enum_fmt,
+ .vidioc_try_fmt_vid_cap = fimc_vidioc_try_fmt,
+ .vidioc_s_fmt_vid_cap = fimc_cap_s_fmt,
+ .vidioc_g_fmt_vid_cap = fimc_vidioc_g_fmt,
+
+ .vidioc_reqbufs = fimc_cap_reqbufs,
+ .vidioc_querybuf = fimc_cap_querybuf,
+
+ .vidioc_qbuf = fimc_cap_qbuf,
+ .vidioc_dqbuf = fimc_cap_dqbuf,
+
+ .vidioc_streamon = fimc_cap_streamon,
+ .vidioc_streamoff = fimc_cap_streamoff,
+
+ .vidioc_queryctrl = fimc_vidioc_queryctrl,
+ .vidioc_g_ctrl = fimc_vidioc_g_ctrl,
+ .vidioc_s_ctrl = fimc_cap_s_ctrl,
+
+ .vidioc_g_crop = fimc_vidioc_g_crop,
+ .vidioc_s_crop = fimc_cap_s_crop,
+ .vidioc_cropcap = fimc_vidioc_cropcap,
+
+ .vidioc_enum_input = fimc_cap_enum_input,
+ .vidioc_s_input = fimc_cap_s_input,
+ .vidioc_g_input = fimc_cap_g_input,
+};
+
+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->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_YUYV8_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);
+}
/*
* S5P camera interface (video postprocessor) driver
*
- * Copyright (c) 2010 Samsung Electronics
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd
*
* Sylwester Nawrocki, <s.nawrocki@samsung.com>
*
.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,
}, {
.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_UYVY8_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_VYUY8_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[] = {
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))
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;
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;
+ }
+
+ if (!list_empty(&cap->pending_buf_q)) {
+
+ 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 */
+ 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("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)
{
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:
*
* 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;
if (ctx->state & FIMC_PARAMS)
fimc_hw_set_out_dma(ctx);
- ctx->state = 0;
fimc_activate_capture(ctx);
+ ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP);
fimc_hw_activate_input_dma(fimc, true);
dma_unlock:
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,
return 0;
}
-static int fimc_m2m_enum_fmt(struct file *file, void *priv,
+int fimc_vidioc_enum_fmt(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
struct fimc_fmt *fmt;
fmt = &fimc_formats[f->index];
strncpy(f->description, fmt->name, sizeof(f->description) - 1);
f->pixelformat = fmt->fourcc;
+
return 0;
}
-static int fimc_m2m_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
+int fimc_vidioc_g_fmt(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;
frame = ctx_get_frame(ctx, f->type);
if (IS_ERR(frame))
return PTR_ERR(frame);
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
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(&fimc->lock);
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)
+ if (fmt->fourcc == f->fmt.pix.pixelformat &&
+ (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,
- struct v4l2_format *f)
+struct fimc_fmt *find_mbus_format(struct v4l2_mbus_framefmt *f,
+ unsigned int mask)
{
struct fimc_fmt *fmt;
- u32 max_width, max_height, mod_x, mod_y;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) {
+ fmt = &fimc_formats[i];
+ if (fmt->mbus_code == f->code && (fmt->flags & mask))
+ break;
+ }
+
+ return (i == ARRAY_SIZE(fimc_formats)) ? NULL : fmt;
+}
+
+
+int fimc_vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
struct fimc_ctx *ctx = priv;
struct fimc_dev *fimc = ctx->fimc_dev;
- struct v4l2_pix_format *pix = &f->fmt.pix;
struct samsung_fimc_variant *variant = fimc->variant;
+ struct v4l2_pix_format *pix = &f->fmt.pix;
+ struct fimc_fmt *fmt;
+ u32 max_width, mod_x, mod_y, mask;
+ int ret = -EINVAL, is_output = 0;
- fmt = find_format(f);
- if (!fmt) {
- v4l2_err(&fimc->m2m.v4l2_dev,
- "Fourcc format (0x%X) invalid.\n", pix->pixelformat);
+ if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ if (ctx->state & FIMC_CTX_CAP)
+ return -EINVAL;
+ is_output = 1;
+ } else if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
return -EINVAL;
}
+ dbg("w: %d, h: %d, bpl: %d",
+ pix->width, pix->height, pix->bytesperline);
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ mask = is_output ? FMT_FLAGS_M2M : FMT_FLAGS_M2M | FMT_FLAGS_CAM;
+ fmt = find_format(f, mask);
+ if (!fmt) {
+ v4l2_err(&fimc->m2m.v4l2_dev, "Fourcc format (0x%X) invalid.\n",
+ pix->pixelformat);
+ goto tf_out;
+ }
+
if (pix->field == V4L2_FIELD_ANY)
pix->field = V4L2_FIELD_NONE;
else if (V4L2_FIELD_NONE != pix->field)
- return -EINVAL;
+ goto tf_out;
- if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ if (is_output) {
max_width = variant->scaler_dis_w;
- max_height = variant->scaler_dis_w;
- mod_x = variant->min_inp_pixsize;
- mod_y = variant->min_inp_pixsize;
- } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- max_width = variant->out_rot_dis_w;
- max_height = variant->out_rot_dis_w;
- mod_x = variant->min_out_pixsize;
- mod_y = variant->min_out_pixsize;
+ mod_x = ffs(variant->min_inp_pixsize) - 1;
} else {
- err("Wrong stream type (%d)", f->type);
- return -EINVAL;
+ max_width = variant->out_rot_dis_w;
+ mod_x = ffs(variant->min_out_pixsize) - 1;
}
- dbg("max_w= %d, max_h= %d", max_width, max_height);
-
- if (pix->height > max_height)
- pix->height = max_height;
- if (pix->width > max_width)
- pix->width = max_width;
-
if (tiled_fmt(fmt)) {
- mod_x = 64; /* 64x32 tile */
- mod_y = 32;
+ mod_x = 6; /* 64 x 32 pixels tile */
+ mod_y = 5;
+ } else {
+ if (fimc->id == 1 && fimc->variant->pix_hoff)
+ mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1;
+ else
+ mod_y = mod_x;
}
- dbg("mod_x= 0x%X, mod_y= 0x%X", mod_x, mod_y);
+ dbg("mod_x: %d, mod_y: %d, max_w: %d", mod_x, mod_y, max_width);
- pix->width = (pix->width == 0) ? mod_x : ALIGN(pix->width, mod_x);
- pix->height = (pix->height == 0) ? mod_y : ALIGN(pix->height, mod_y);
+ v4l_bound_align_image(&pix->width, 16, max_width, mod_x,
+ &pix->height, 8, variant->scaler_dis_w, mod_y, 0);
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)
pix->sizeimage = pix->height * pix->bytesperline;
- dbg("pix->bytesperline= %d, fmt->depth= %d",
- pix->bytesperline, fmt->depth);
+ dbg("w: %d, h: %d, bpl: %d, depth: %d",
+ pix->width, pix->height, pix->bytesperline, fmt->depth);
- return 0;
-}
+ ret = 0;
+tf_out:
+ mutex_unlock(&fimc->lock);
+ return ret;
+}
static int fimc_m2m_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
{
unsigned long flags;
int ret = 0;
- BUG_ON(!ctx);
-
- ret = fimc_m2m_try_fmt(file, priv, f);
+ ret = fimc_vidioc_try_fmt(file, priv, f);
if (ret)
return ret;
spin_unlock_irqrestore(&ctx->slock, flags);
pix = &f->fmt.pix;
- frame->fmt = find_format(f);
+ frame->fmt = find_format(f, FMT_FLAGS_M2M);
if (!frame->fmt) {
ret = -EINVAL;
goto sf_out;
return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
}
-int fimc_m2m_queryctrl(struct file *file, void *priv,
+int fimc_vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc)
{
+ struct fimc_ctx *ctx = priv;
struct v4l2_queryctrl *c;
+
c = get_ctrl(qc->id);
- if (!c)
- return -EINVAL;
- *qc = *c;
- return 0;
+ if (c) {
+ *qc = *c;
+ return 0;
+ }
+
+ if (ctx->state & FIMC_CTX_CAP)
+ return v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd,
+ core, queryctrl, qc);
+ return -EINVAL;
}
-int fimc_m2m_g_ctrl(struct file *file, void *priv,
+int fimc_vidioc_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct fimc_ctx *ctx = priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ int ret = 0;
+
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
switch (ctrl->id) {
case V4L2_CID_HFLIP:
ctrl->value = ctx->rotation;
break;
default:
- v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev, "Invalid control\n");
- return -EINVAL;
+ if (ctx->state & FIMC_CTX_CAP) {
+ ret = v4l2_subdev_call(fimc->vid_cap.sd, core,
+ g_ctrl, ctrl);
+ } else {
+ v4l2_err(&fimc->m2m.v4l2_dev,
+ "Invalid control\n");
+ ret = -EINVAL;
+ }
}
dbg("ctrl->value= %d", ctrl->value);
- return 0;
+
+ mutex_unlock(&fimc->lock);
+ return ret;
}
-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);
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;
+ struct fimc_dev *fimc = ctx->fimc_dev;
unsigned long flags;
- int ret = 0;
- ret = check_ctrl_val(ctx, ctrl);
- if (ret)
- return ret;
+ if (ctx->rotation != 0 &&
+ (ctrl->id == V4L2_CID_HFLIP || ctrl->id == V4L2_CID_VFLIP)) {
+ v4l2_err(&fimc->m2m.v4l2_dev,
+ "Simultaneous flip and rotation is not supported\n");
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&ctx->slock, flags);
switch (ctrl->id) {
case V4L2_CID_HFLIP:
- if (ctx->rotation != 0)
- return 0;
if (ctrl->value)
ctx->flip |= FLIP_X_AXIS;
else
break;
case V4L2_CID_VFLIP:
- if (ctx->rotation != 0)
- return 0;
if (ctrl->value)
ctx->flip |= FLIP_Y_AXIS;
else
break;
case V4L2_CID_ROTATE:
- if (ctrl->value == 90 || ctrl->value == 270) {
- if (ctx->out_path == FIMC_LCDFIFO &&
- !variant->has_inp_rot) {
- return -EINVAL;
- } else if (ctx->in_path == FIMC_DMA &&
- !variant->has_out_rot) {
- return -EINVAL;
- }
+ /* Check for the output rotator availability */
+ if ((ctrl->value == 90 || ctrl->value == 270) &&
+ (ctx->in_path == FIMC_DMA && !variant->has_out_rot)) {
+ spin_unlock_irqrestore(&ctx->slock, flags);
+ return -EINVAL;
+ } else {
+ ctx->rotation = ctrl->value;
}
- ctx->rotation = ctrl->value;
- if (ctrl->value == 180)
- ctx->flip = FLIP_XY_AXIS;
break;
default:
- v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev, "Invalid control\n");
+ spin_unlock_irqrestore(&ctx->slock, flags);
+ v4l2_err(&fimc->m2m.v4l2_dev, "Invalid control\n");
return -EINVAL;
}
- spin_lock_irqsave(&ctx->slock, flags);
ctx->state |= FIMC_PARAMS;
spin_unlock_irqrestore(&ctx->slock, flags);
+
return 0;
}
+static int fimc_m2m_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct fimc_ctx *ctx = priv;
+ int ret = 0;
+
+ ret = check_ctrl_val(ctx, ctrl);
+ if (ret)
+ return ret;
+
+ ret = fimc_s_ctrl(ctx, ctrl);
+ return 0;
+}
-static int fimc_m2m_cropcap(struct file *file, void *fh,
- struct v4l2_cropcap *cr)
+int fimc_vidioc_cropcap(struct file *file, void *fh,
+ struct v4l2_cropcap *cr)
{
struct fimc_frame *frame;
struct fimc_ctx *ctx = fh;
+ struct fimc_dev *fimc = ctx->fimc_dev;
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.left = frame->offs_h;
- cr->defrect.top = frame->offs_v;
- cr->defrect.width = frame->o_width;
- cr->defrect.height = frame->o_height;
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ cr->bounds.left = 0;
+ cr->bounds.top = 0;
+ cr->bounds.width = frame->f_width;
+ cr->bounds.height = frame->f_height;
+ cr->defrect = cr->bounds;
+
+ mutex_unlock(&fimc->lock);
return 0;
}
-static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+int fimc_vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
{
struct fimc_frame *frame;
struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *fimc = ctx->fimc_dev;
frame = ctx_get_frame(ctx, cr->type);
if (IS_ERR(frame))
return PTR_ERR(frame);
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
cr->c.left = frame->offs_h;
cr->c.top = frame->offs_v;
cr->c.width = frame->width;
cr->c.height = frame->height;
+ mutex_unlock(&fimc->lock);
return 0;
}
-static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
{
- struct fimc_ctx *ctx = file->private_data;
struct fimc_dev *fimc = ctx->fimc_dev;
- unsigned long flags;
struct fimc_frame *f;
- u32 min_size;
- int ret = 0;
+ u32 min_size, halign;
+
+ f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ?
+ &ctx->s_frame : &ctx->d_frame;
if (cr->c.top < 0 || cr->c.left < 0) {
v4l2_err(&fimc->m2m.v4l2_dev,
return -EINVAL;
}
- if (cr->c.width <= 0 || cr->c.height <= 0) {
- v4l2_err(&fimc->m2m.v4l2_dev,
- "crop width and height must be greater than 0\n");
- return -EINVAL;
- }
-
f = ctx_get_frame(ctx, cr->type);
if (IS_ERR(f))
return PTR_ERR(f);
- /* Adjust to required pixel boundary. */
- min_size = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ?
- fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
+ min_size = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
+ ? fimc->variant->min_inp_pixsize
+ : fimc->variant->min_out_pixsize;
- cr->c.width = round_down(cr->c.width, min_size);
- cr->c.height = round_down(cr->c.height, min_size);
- cr->c.left = round_down(cr->c.left + 1, min_size);
- cr->c.top = round_down(cr->c.top + 1, min_size);
-
- if ((cr->c.left + cr->c.width > f->o_width)
- || (cr->c.top + cr->c.height > f->o_height)) {
- v4l2_err(&fimc->m2m.v4l2_dev, "Error in S_CROP params\n");
- return -EINVAL;
+ if (ctx->state & FIMC_CTX_M2M) {
+ if (fimc->id == 1 && fimc->variant->pix_hoff)
+ halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
+ else
+ halign = ffs(min_size) - 1;
+ /* there are more strict aligment requirements at camera interface */
+ } else {
+ min_size = 16;
+ halign = 4;
}
+ v4l_bound_align_image(&cr->c.width, min_size, f->o_width,
+ ffs(min_size) - 1,
+ &cr->c.height, min_size, f->o_height,
+ halign, 64/(ALIGN(f->fmt->depth, 8)));
+
+ /* adjust left/top if cropping rectangle is out of bounds */
+ if (cr->c.left + cr->c.width > f->o_width)
+ cr->c.left = f->o_width - cr->c.width;
+ if (cr->c.top + cr->c.height > f->o_height)
+ cr->c.top = f->o_height - cr->c.height;
+
+ cr->c.left = round_down(cr->c.left, min_size);
+ cr->c.top = round_down(cr->c.top,
+ ctx->state & FIMC_CTX_M2M ? 8 : 16);
+
+ dbg("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,
+ f->f_width, f->f_height);
+
+ return 0;
+}
+
+
+static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+{
+ struct fimc_ctx *ctx = file->private_data;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ unsigned long flags;
+ struct fimc_frame *f;
+ int ret;
+
+ ret = fimc_try_crop(ctx, cr);
+ if (ret)
+ return ret;
+
+ f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ?
+ &ctx->s_frame : &ctx->d_frame;
+
spin_lock_irqsave(&ctx->slock, flags);
- if ((ctx->state & FIMC_SRC_FMT) && (ctx->state & FIMC_DST_FMT)) {
- /* Check for the pixel scaling ratio when cropping input img. */
+ if (~ctx->state & (FIMC_SRC_FMT | FIMC_DST_FMT)) {
+ /* Check to see if scaling ratio is within supported range */
if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
ret = fimc_check_scaler_ratio(&cr->c, &ctx->d_frame);
- else if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ else
ret = fimc_check_scaler_ratio(&cr->c, &ctx->s_frame);
-
if (ret) {
spin_unlock_irqrestore(&ctx->slock, flags);
- v4l2_err(&fimc->m2m.v4l2_dev, "Out of scaler range");
+ v4l2_err(&fimc->m2m.v4l2_dev, "Out of scaler range");
return -EINVAL;
}
}
ctx->state |= FIMC_PARAMS;
- spin_unlock_irqrestore(&ctx->slock, flags);
f->offs_h = cr->c.left;
f->offs_v = cr->c.top;
- f->width = cr->c.width;
+ f->width = cr->c.width;
f->height = cr->c.height;
+
+ spin_unlock_irqrestore(&ctx->slock, flags);
return 0;
}
static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = {
.vidioc_querycap = fimc_m2m_querycap,
- .vidioc_enum_fmt_vid_cap = fimc_m2m_enum_fmt,
- .vidioc_enum_fmt_vid_out = fimc_m2m_enum_fmt,
+ .vidioc_enum_fmt_vid_cap = fimc_vidioc_enum_fmt,
+ .vidioc_enum_fmt_vid_out = fimc_vidioc_enum_fmt,
- .vidioc_g_fmt_vid_cap = fimc_m2m_g_fmt,
- .vidioc_g_fmt_vid_out = fimc_m2m_g_fmt,
+ .vidioc_g_fmt_vid_cap = fimc_vidioc_g_fmt,
+ .vidioc_g_fmt_vid_out = fimc_vidioc_g_fmt,
- .vidioc_try_fmt_vid_cap = fimc_m2m_try_fmt,
- .vidioc_try_fmt_vid_out = fimc_m2m_try_fmt,
+ .vidioc_try_fmt_vid_cap = fimc_vidioc_try_fmt,
+ .vidioc_try_fmt_vid_out = fimc_vidioc_try_fmt,
.vidioc_s_fmt_vid_cap = fimc_m2m_s_fmt,
.vidioc_s_fmt_vid_out = fimc_m2m_s_fmt,
.vidioc_streamon = fimc_m2m_streamon,
.vidioc_streamoff = fimc_m2m_streamoff,
- .vidioc_queryctrl = fimc_m2m_queryctrl,
- .vidioc_g_ctrl = fimc_m2m_g_ctrl,
+ .vidioc_queryctrl = fimc_vidioc_queryctrl,
+ .vidioc_g_ctrl = fimc_vidioc_g_ctrl,
.vidioc_s_ctrl = fimc_m2m_s_ctrl,
- .vidioc_g_crop = fimc_m2m_g_crop,
+ .vidioc_g_crop = fimc_vidioc_g_crop,
.vidioc_s_crop = fimc_m2m_s_crop,
- .vidioc_cropcap = fimc_m2m_cropcap
+ .vidioc_cropcap = fimc_vidioc_cropcap
};
struct fimc_ctx *ctx = NULL;
int err = 0;
- mutex_lock(&fimc->lock);
+ if (mutex_lock_interruptible(&fimc->lock))
+ return -ERESTARTSYS;
+
+ dbg("pid: %d, state: 0x%lx, refcnt: %d",
+ task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt);
+
+ /*
+ * Return if the corresponding video capture node
+ * is already opened.
+ */
+ if (fimc->vid_cap.refcnt > 0) {
+ mutex_unlock(&fimc->lock);
+ return -EBUSY;
+ }
+
fimc->m2m.refcnt++;
set_bit(ST_OUTDMA_RUN, &fimc->state);
- mutex_unlock(&fimc->lock);
-
ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
if (!ctx)
/* Default color format */
ctx->s_frame.fmt = &fimc_formats[0];
ctx->d_frame.fmt = &fimc_formats[0];
- /* per user process device context initialization */
- ctx->state = 0;
+ /* Setup the device context for mem2mem mode. */
+ ctx->state = FIMC_CTX_M2M;
ctx->flags = 0;
ctx->in_path = FIMC_DMA;
ctx->out_path = FIMC_DMA;
err = PTR_ERR(ctx->m2m_ctx);
kfree(ctx);
}
+
+ mutex_unlock(&fimc->lock);
return err;
}
struct fimc_ctx *ctx = file->private_data;
struct fimc_dev *fimc = ctx->fimc_dev;
+ mutex_lock(&fimc->lock);
+
+ 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);
if (--fimc->m2m.refcnt <= 0)
clear_bit(ST_OUTDMA_RUN, &fimc->state);
+
mutex_unlock(&fimc->lock);
return 0;
}
struct poll_table_struct *wait)
{
struct fimc_ctx *ctx = file->private_data;
+
return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
}
static int fimc_m2m_mmap(struct file *file, struct vm_area_struct *vma)
{
struct fimc_ctx *ctx = file->private_data;
+
return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
}
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);
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) {
if (ret)
goto err_irq;
+ /* At least one camera sensor is required to register capture node */
+ if (fimc->pdata) {
+ int i;
+ for (i = 0; i < FIMC_MAX_CAMIF_CLIENTS; ++i)
+ if (fimc->pdata->isp_info[i])
+ break;
+
+ if (i < FIMC_MAX_CAMIF_CLIENTS) {
+ 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_m2m:
+ fimc_unregister_m2m_device(fimc);
err_irq:
free_irq(fimc->irq, fimc);
err_clk:
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);
[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 = {
[1] = &fimc01_variant_s5pv210,
[2] = &fimc2_variant_s5pv210,
},
- .devs_cnt = 3
+ .devs_cnt = 3,
+ .lclk_frequency = 166000000UL,
};
static struct platform_device_id fimc_driver_ids[] = {
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_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
+MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver");
MODULE_LICENSE("GPL");
#ifndef FIMC_CORE_H_
#define FIMC_CORE_H_
+/*#define DEBUG*/
+
#include <linux/types.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"
#define dbg(fmt, args...)
#endif
+/* Time to wait for next frame VSYNC interrupt while stopping operation. */
+#define FIMC_SHUTDOWN_TIMEOUT ((100*HZ)/1000)
#define NUM_FIMC_CLOCKS 2
#define MODULE_NAME "s5p-fimc"
#define FIMC_MAX_DEVS 3
#define SCALER_MAX_VRATIO 64
#define DMA_MIN_SIZE 8
-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
/**
* 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)
};
/**
/**
* struct fimc_vid_buffer - the driver's video buffer
- * @vb: v4l videobuf buffer
+ * @vb: v4l videobuf buffer
+ * @paddr: precalculated physical address set
+ * @index: buffer index for the output DMA engine
*/
struct fimc_vid_buffer {
struct videobuf_buffer vb;
+ struct fimc_addr paddr;
+ int index;
};
/**
int refcnt;
};
+/**
+ * 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
*
*
* @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;
* @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 videobuffer queue
+ * @irq_queue:
* @m2m: memory-to-memory V4L2 device information
- * @state: the FIMC device state flags
+ * @vid_cap: camera capture device information
+ * @state: flags used to synchronize m2m and capture mode operation
*/
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];
struct resource *regs_res;
int irq;
spinlock_t irqlock;
+ wait_queue_head_t irq_queue;
struct fimc_m2m_device m2m;
+ struct fimc_vid_cap vid_cap;
unsigned long state;
};
struct v4l2_m2m_ctx *m2m_ctx;
};
+extern struct videobuf_queue_ops fimc_qops;
static inline int tiled_fmt(struct fimc_fmt *fmt)
{
struct fimc_frame *frame;
if (V4L2_BUF_TYPE_VIDEO_OUTPUT == type) {
- frame = &ctx->s_frame;
+ if (ctx->state & FIMC_CTX_M2M)
+ frame = &ctx->s_frame;
+ else
+ return ERR_PTR(-EINVAL);
} else if (V4L2_BUF_TYPE_VIDEO_CAPTURE == type) {
frame = &ctx->d_frame;
} else {
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 *fimc);
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);
+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_vidioc_enum_fmt(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f);
+int fimc_vidioc_g_fmt(struct file *file, void *priv,
+ struct v4l2_format *f);
+int fimc_vidioc_try_fmt(struct file *file, void *priv,
+ struct v4l2_format *f);
+int fimc_vidioc_g_crop(struct file *file, void *fh,
+ struct v4l2_crop *cr);
+int fimc_vidioc_cropcap(struct file *file, void *fh,
+ struct v4l2_cropcap *cr);
+int fimc_vidioc_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qc);
+int fimc_vidioc_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl);
+
+int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr);
+int check_ctrl_val(struct fimc_ctx *ctx, struct v4l2_control *ctrl);
+int fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_control *ctrl);
+
+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_check_scaler_ratio(struct v4l2_rect *r, struct fimc_frame *f);
+int fimc_set_scaler_info(struct fimc_ctx *ctx);
+int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags);
+int fimc_prepare_addr(struct fimc_ctx *ctx, struct fimc_vid_buffer *buf,
+ struct fimc_frame *frame, struct fimc_addr *paddr);
+
+/* -----------------------------------------------------*/
+/* 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_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_ */
#include <linux/io.h>
#include <linux/delay.h>
#include <mach/map.h>
+#include <media/s3c_fimc.h>
#include "fimc-core.h"
cfg = S5P_ORIG_SIZE_HOR(frame->f_width);
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)
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);
}
static void fimc_hw_set_prescaler(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;
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_CRYCBY;
+ break;
+ case V4L2_MBUS_FMT_UYVY8_2X8:
+ cfg = S5P_CISRCFMT_ORDER422_CBYCRY;
+ 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->o_width) | S5P_CISRCFMT_VSIZE(f->o_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);
+
+ 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 supported formats. */
+ 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;
+}
--- /dev/null
+/*
+ * 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.
+ *
+ * @board_info: pointer to I2C subdevice's board info
+ * @bus_type: determines bus type, MIPI, ITU-R BT.601 etc.
+ * @i2c_bus_num: i2c control bus id the sensor is attached to
+ * @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)
+ */
+struct s3c_fimc_isp_info {
+ struct i2c_board_info *board_info;
+ enum cam_bus_type bus_type;
+ u16 i2c_bus_num;
+ u16 mux_id;
+ u16 bus_width;
+ u16 flags;
+};
+
+
+#define FIMC_MAX_CAMIF_CLIENTS 2
+
+/**
+ * struct s3c_platform_fimc - camera host interface platform data
+ *
+ * @isp_info: properties of camera sensor required for host interface setup
+ */
+struct s3c_platform_fimc {
+ struct s3c_fimc_isp_info *isp_info[FIMC_MAX_CAMIF_CLIENTS];
+};
+#endif /* S3C_FIMC_H_ */
projects / users / hch / xfs.git / commitdiff