Edit File: vpfe_capture.h
/* * 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; /* i2c bus adapter no */ int i2c_adapter_id; /* 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; /* Function for Clearing the interrupt */ void (*clr_intr)(int vdint); }; 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 separated 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 */