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Diffstat (limited to 'include/media/davinci/vpfe_capture.h')
| -rw-r--r-- | include/media/davinci/vpfe_capture.h | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/include/media/davinci/vpfe_capture.h b/include/media/davinci/vpfe_capture.h new file mode 100644 index 00000000000..71d8982e13f --- /dev/null +++ b/include/media/davinci/vpfe_capture.h @@ -0,0 +1,198 @@ +/* + * Copyright (C) 2008-2009 Texas Instruments Inc + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef _VPFE_CAPTURE_H +#define _VPFE_CAPTURE_H + +#ifdef __KERNEL__ + +/* Header files */ +#include <media/v4l2-dev.h> +#include <linux/videodev2.h> +#include <linux/clk.h> +#include <linux/i2c.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-device.h> +#include <media/videobuf-dma-contig.h> +#include <media/davinci/vpfe_types.h> + +#define VPFE_CAPTURE_NUM_DECODERS 5 + +/* Macros */ +#define VPFE_MAJOR_RELEASE 0 +#define VPFE_MINOR_RELEASE 0 +#define VPFE_BUILD 1 +#define VPFE_CAPTURE_VERSION_CODE ((VPFE_MAJOR_RELEASE << 16) | \ + (VPFE_MINOR_RELEASE << 8) | \ + VPFE_BUILD) + +#define CAPTURE_DRV_NAME "vpfe-capture" + +struct vpfe_pixel_format { + struct v4l2_fmtdesc fmtdesc; + /* bytes per pixel */ + int bpp; +}; + +struct vpfe_std_info { + int active_pixels; + int active_lines; + /* current frame format */ + int frame_format; +}; + +struct vpfe_route { + u32 input; + u32 output; +}; + +struct vpfe_subdev_info { + /* Sub device name */ + char name[32]; + /* Sub device group id */ + int grp_id; + /* Number of inputs supported */ + int num_inputs; + /* inputs available at the sub device */ + struct v4l2_input *inputs; + /* Sub dev routing information for each input */ + struct vpfe_route *routes; + /* check if sub dev supports routing */ + int can_route; + /* ccdc bus/interface configuration */ + struct vpfe_hw_if_param ccdc_if_params; + /* i2c subdevice board info */ + struct i2c_board_info board_info; +}; + +struct vpfe_config { + /* Number of sub devices connected to vpfe */ + int num_subdevs; + /* information about each subdev */ + struct vpfe_subdev_info *sub_devs; + /* evm card info */ + char *card_name; + /* ccdc name */ + char *ccdc; + /* vpfe clock */ + struct clk *vpssclk; + struct clk *slaveclk; +}; + +struct vpfe_device { + /* V4l2 specific parameters */ + /* Identifies video device for this channel */ + struct video_device *video_dev; + /* sub devices */ + struct v4l2_subdev **sd; + /* vpfe cfg */ + struct vpfe_config *cfg; + /* V4l2 device */ + struct v4l2_device v4l2_dev; + /* parent device */ + struct device *pdev; + /* Used to keep track of state of the priority */ + struct v4l2_prio_state prio; + /* number of open instances of the channel */ + u32 usrs; + /* Indicates id of the field which is being displayed */ + u32 field_id; + /* flag to indicate whether decoder is initialized */ + u8 initialized; + /* current interface type */ + struct vpfe_hw_if_param vpfe_if_params; + /* ptr to currently selected sub device */ + struct vpfe_subdev_info *current_subdev; + /* current input at the sub device */ + int current_input; + /* Keeps track of the information about the standard */ + struct vpfe_std_info std_info; + /* std index into std table */ + int std_index; + /* CCDC IRQs used when CCDC/ISIF output to SDRAM */ + unsigned int ccdc_irq0; + unsigned int ccdc_irq1; + /* number of buffers in fbuffers */ + u32 numbuffers; + /* List of buffer pointers for storing frames */ + u8 *fbuffers[VIDEO_MAX_FRAME]; + /* Pointer pointing to current v4l2_buffer */ + struct videobuf_buffer *cur_frm; + /* Pointer pointing to next v4l2_buffer */ + struct videobuf_buffer *next_frm; + /* + * This field keeps track of type of buffer exchange mechanism + * user has selected + */ + enum v4l2_memory memory; + /* Used to store pixel format */ + struct v4l2_format fmt; + /* + * used when IMP is chained to store the crop window which + * is different from the image window + */ + struct v4l2_rect crop; + /* Buffer queue used in video-buf */ + struct videobuf_queue buffer_queue; + /* Queue of filled frames */ + struct list_head dma_queue; + /* Used in video-buf */ + spinlock_t irqlock; + /* IRQ lock for DMA queue */ + spinlock_t dma_queue_lock; + /* lock used to access this structure */ + struct mutex lock; + /* number of users performing IO */ + u32 io_usrs; + /* Indicates whether streaming started */ + u8 started; + /* + * offset where second field starts from the starting of the + * buffer for field seperated YCbCr formats + */ + u32 field_off; +}; + +/* File handle structure */ +struct vpfe_fh { + struct vpfe_device *vpfe_dev; + /* Indicates whether this file handle is doing IO */ + u8 io_allowed; + /* Used to keep track priority of this instance */ + enum v4l2_priority prio; +}; + +struct vpfe_config_params { + u8 min_numbuffers; + u8 numbuffers; + u32 min_bufsize; + u32 device_bufsize; +}; + +#endif /* End of __KERNEL__ */ +/** + * VPFE_CMD_S_CCDC_RAW_PARAMS - EXPERIMENTAL IOCTL to set raw capture params + * This can be used to configure modules such as defect pixel correction, + * color space conversion, culling etc. This is an experimental ioctl that + * will change in future kernels. So use this ioctl with care ! + * TODO: This is to be split into multiple ioctls and also explore the + * possibility of extending the v4l2 api to include this + **/ +#define VPFE_CMD_S_CCDC_RAW_PARAMS _IOW('V', BASE_VIDIOC_PRIVATE + 1, \ + void *) +#endif /* _DAVINCI_VPFE_H */ |