This patch implements second video node per each FIMC entity providing V4L2 camera capture interface in additions to existing mem-to-mem functionality. Each of the two /dev/videoX nodes associated with single FIMC hardware entity should be used exclusively, i.e. v4l2 mem2mem or capture node. Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> Reviewed-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> --- Hi all, This patch adds camera capture capablity to the s5p-fimc driver. The driver is based on videobuf 1 however it is meant as a first step to videobuf 2 based implementation. arch/arm/plat-samsung/include/plat/fimc.h header adds platform data declarations for camera host interface, which allows to define image sensors available at host interface multiplexer in board setup code. I've tried to keep the driver and platform code independent for easier merging however I could not find a way to avoid the above shared header file. The host interface driver has been tested on Samsung Aquila and GONI boards with SR030PC30 (VGA) and NOON010PC30 (CIF) image sensors. I am working on common driver for these image sensors so the patches providing support for them might be available soon. Next item on my job queue is support for MIPI-CSI2 interface in S5P Samsung SoCs. Although most of work related to that is done I'm looking toward integration with the media controller API due to complex configuration. For example, one of the SoC types contains 4 host interfaces and additional 2 MIPI-CSI2 front-ends freely interconnectable with any of those 4 host interfaces. Moreover single image sensor can be attached to 2 or more host interfaces/scalers e.g for preview and image capture. The patch has been prepared in assumption that the following patches, posted by Marek Szyprowski, were applied: [3/8] v4l: s5p-fimc: Register definition cleanup [2/8] v4l: s5p-fimc: Fix 3-planar formats handling and pixel offset error on S5PV210 SoCs [1/8] v4l: s5p-fimc: Fix return value on probe() failure Any comments are welcomed. Regards, Sylwester Nawrocki --- arch/arm/plat-samsung/include/plat/fimc.h | 31 + drivers/media/video/s5p-fimc/Makefile | 2 +- drivers/media/video/s5p-fimc/fimc-capture.c | 922 +++++++++++++++++++++++++++ drivers/media/video/s5p-fimc/fimc-core.c | 347 +++++++---- drivers/media/video/s5p-fimc/fimc-core.h | 295 +++++++-- drivers/media/video/s5p-fimc/fimc-reg.c | 194 +++++- drivers/media/video/s5p-fimc/regs-fimc.h | 23 +- include/media/s3c_fimc.h | 48 ++ 8 files changed, 1661 insertions(+), 201 deletions(-) create mode 100644 arch/arm/plat-samsung/include/plat/fimc.h create mode 100644 drivers/media/video/s5p-fimc/fimc-capture.c create mode 100644 include/media/s3c_fimc.h diff --git a/arch/arm/plat-samsung/include/plat/fimc.h b/arch/arm/plat-samsung/include/plat/fimc.h new file mode 100644 index 0000000..351eb7e --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/fimc.h @@ -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 */ diff --git a/drivers/media/video/s5p-fimc/Makefile b/drivers/media/video/s5p-fimc/Makefile index 0d9d541..7ea1b14 100644 --- a/drivers/media/video/s5p-fimc/Makefile +++ b/drivers/media/video/s5p-fimc/Makefile @@ -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 diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c new file mode 100644 index 0000000..ca3ae2d --- /dev/null +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -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@xxxxxxxxxxx> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/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); +} diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index e00026b..1efaec4 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -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@xxxxxxxxxxx> + * Copyright (c) 2010 Samsung Electronics Co., Ltd + * Author: Sylwester Nawrocki, <s.nawrocki@xxxxxxxxxxx> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published @@ -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@xxxxxxxxxxx"); -MODULE_DESCRIPTION("S3C/S5P FIMC (video postprocessor) driver"); +MODULE_DESCRIPTION("S5P SoC Camera Host Interface driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h index 6b3e0cd..be911b6 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.h +++ b/drivers/media/video/s5p-fimc/fimc-core.h @@ -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_ */ diff --git a/drivers/media/video/s5p-fimc/fimc-reg.c b/drivers/media/video/s5p-fimc/fimc-reg.c index 70f29c5..fc58cdd 100644 --- a/drivers/media/video/s5p-fimc/fimc-reg.c +++ b/drivers/media/video/s5p-fimc/fimc-reg.c @@ -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; } diff --git a/drivers/media/video/s5p-fimc/regs-fimc.h b/drivers/media/video/s5p-fimc/regs-fimc.h index df8cdfb..9e83315 100644 --- a/drivers/media/video/s5p-fimc/regs-fimc.h +++ b/drivers/media/video/s5p-fimc/regs-fimc.h @@ -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_ */ diff --git a/include/media/s3c_fimc.h b/include/media/s3c_fimc.h new file mode 100644 index 0000000..37c07f1 --- /dev/null +++ b/include/media/s3c_fimc.h @@ -0,0 +1,48 @@ +/* + * Samsung S5P SoC camera interface driver header + * + * Copyright (c) 2010 Samsung Electronics Co., Ltd + * Author: Sylwester Nawrocki, <s.nawrocki@xxxxxxxxxxx> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef 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_ */ -- 1.7.3 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
