/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright ( C ) 2010 - 2012 Samsung Electronics Co . , Ltd .
*/
#ifndef FIMC_CORE_H_
#define FIMC_CORE_H_
/*#define DEBUG*/
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/mfd/syscon.h>
#include <linux/types.h>
#include <linux/videodev2.h>
#include <linux/io.h>
#include <linux/sizes.h>
#include <media/media-entity.h>
#include <media/videobuf2-v4l2.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-mem2mem.h>
#include <media/v4l2-mediabus.h>
#include <media/drv-intf/exynos-fimc.h>
#define dbg(fmt, args...) \
pr_debug("%s:%d: " fmt "\n" , __func__, __LINE__, ## args)
/* Time to wait for next frame VSYNC interrupt while stopping operation. */
#define FIMC_SHUTDOWN_TIMEOUT ((100 *HZ)/1000 )
#define MAX_FIMC_CLOCKS 2
#define FIMC_DRIVER_NAME "exynos4-fimc"
#define FIMC_MAX_DEVS 4
#define FIMC_MAX_OUT_BUFS 4
#define SCALER_MAX_HRATIO 64
#define SCALER_MAX_VRATIO 64
#define DMA_MIN_SIZE 8
#define FIMC_CAMIF_MAX_HEIGHT 0 x2000
#define FIMC_MAX_JPEG_BUF_SIZE (10 * SZ_1M)
#define FIMC_MAX_PLANES 3
#define FIMC_PIX_LIMITS_MAX 4
#define FIMC_DEF_MIN_SIZE 16
#define FIMC_DEF_HEIGHT_ALIGN 2
#define FIMC_DEF_HOR_OFFS_ALIGN 1
#define FIMC_DEFAULT_WIDTH 640
#define FIMC_DEFAULT_HEIGHT 480
/* indices to the clocks array */
enum {
CLK_BUS,
CLK_GATE,
};
enum fimc_dev_flags {
ST_LPM,
/* m2m node */
ST_M2M_RUN,
ST_M2M_PEND,
ST_M2M_SUSPENDING,
ST_M2M_SUSPENDED,
/* capture node */
ST_CAPT_PEND,
ST_CAPT_RUN,
ST_CAPT_STREAM,
ST_CAPT_ISP_STREAM,
ST_CAPT_SUSPENDED,
ST_CAPT_SHUT,
ST_CAPT_BUSY,
ST_CAPT_APPLY_CFG,
ST_CAPT_JPEG,
};
#define fimc_m2m_active(dev) test_bit(ST_M2M_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_busy(dev) test_bit(ST_CAPT_BUSY, &(dev)->state)
enum fimc_datapath {
FIMC_IO_NONE,
FIMC_IO_CAMERA,
FIMC_IO_DMA,
FIMC_IO_LCDFIFO,
FIMC_IO_WRITEBACK,
FIMC_IO_ISP,
};
enum fimc_color_fmt {
FIMC_FMT_RGB444 = 0 x10,
FIMC_FMT_RGB555,
FIMC_FMT_RGB565,
FIMC_FMT_RGB666,
FIMC_FMT_RGB888,
FIMC_FMT_RGB30_LOCAL,
FIMC_FMT_YCBCR420 = 0 x20,
FIMC_FMT_YCBYCR422,
FIMC_FMT_YCRYCB422,
FIMC_FMT_CBYCRY422,
FIMC_FMT_CRYCBY422,
FIMC_FMT_YCBCR444_LOCAL,
FIMC_FMT_RAW8 = 0 x40,
FIMC_FMT_RAW10,
FIMC_FMT_RAW12,
FIMC_FMT_JPEG = 0 x80,
FIMC_FMT_YUYV_JPEG = 0 x100,
};
#define fimc_fmt_is_user_defined(x) (!!((x) & 0 x180))
#define fimc_fmt_is_rgb(x) (!!((x) & 0 x10))
#define IS_M2M(__strt) ((__strt) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE || \
__strt == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
/* The hardware context state. */
#define FIMC_PARAMS (1 << 0 )
#define FIMC_COMPOSE (1 << 1 )
#define FIMC_CTX_M2M (1 << 16 )
#define FIMC_CTX_CAP (1 << 17 )
#define FIMC_CTX_SHUT (1 << 18 )
/* Image conversion flags */
#define FIMC_IN_DMA_ACCESS_TILED (1 << 0 )
#define FIMC_IN_DMA_ACCESS_LINEAR (0 << 0 )
#define FIMC_OUT_DMA_ACCESS_TILED (1 << 1 )
#define FIMC_OUT_DMA_ACCESS_LINEAR (0 << 1 )
#define FIMC_SCAN_MODE_PROGRESSIVE (0 << 2 )
#define FIMC_SCAN_MODE_INTERLACED (1 << 2 )
/*
* YCbCr data dynamic range for RGB - YUV color conversion .
* Y/Cb/Cr: (0 ~ 255) */
#define FIMC_COLOR_RANGE_WIDE (0 << 3 )
/* Y (16 ~ 235), Cb/Cr (16 ~ 240) */
#define FIMC_COLOR_RANGE_NARROW (1 << 3 )
/**
* struct fimc_dma_offset - pixel offset information for DMA
* @ y_h : y value horizontal offset
* @ y_v : y value vertical offset
* @ cb_h : cb value horizontal offset
* @ cb_v : cb value vertical offset
* @ cr_h : cr value horizontal offset
* @ cr_v : cr value vertical offset
*/
struct fimc_dma_offset {
int y_h;
int y_v;
int cb_h;
int cb_v;
int cr_h;
int cr_v;
};
/**
* struct fimc_effect - color effect information
* @ type : effect type
* @ pat_cb : cr value when type is " arbitrary "
* @ pat_cr : cr value when type is " arbitrary "
*/
struct fimc_effect {
u32 type;
u8 pat_cb;
u8 pat_cr;
};
/**
* struct fimc_scaler - the configuration data for FIMC inetrnal scaler
* @ scaleup_h : flag indicating scaling up horizontally
* @ scaleup_v : flag indicating scaling up vertically
* @ copy_mode : flag indicating transparent DMA transfer ( no scaling
* and color format conversion )
* @ enabled : flag indicating if the scaler is used
* @ hfactor : horizontal shift factor
* @ vfactor : vertical shift factor
* @ pre_hratio : horizontal ratio of the prescaler
* @ pre_vratio : vertical ratio of the prescaler
* @ pre_dst_width : the prescaler ' s destination width
* @ pre_dst_height : the prescaler ' s destination height
* @ main_hratio : the main scaler ' s horizontal ratio
* @ main_vratio : the main scaler ' s vertical ratio
* @ real_width : source pixel ( width - offset )
* @ real_height : source pixel ( height - offset )
*/
struct fimc_scaler {
unsigned int scaleup_h:1 ;
unsigned int scaleup_v:1 ;
unsigned int copy_mode:1 ;
unsigned int enabled:1 ;
u32 hfactor;
u32 vfactor;
u32 pre_hratio;
u32 pre_vratio;
u32 pre_dst_width;
u32 pre_dst_height;
u32 main_hratio;
u32 main_vratio;
u32 real_width;
u32 real_height;
};
/**
* struct fimc_addr - the FIMC address set for DMA
* @ y : luminance plane address
* @ cb : Cb plane address
* @ cr : Cr plane address
*/
struct fimc_addr {
u32 y;
u32 cb;
u32 cr;
};
/**
* struct fimc_vid_buffer - the driver ' s video buffer
* @ vb : v4l vb2 buffer
* @ list : linked list structure for buffer queue
* @ addr : precalculated DMA address set
* @ index : buffer index for the output DMA engine
*/
struct fimc_vid_buffer {
struct vb2_v4l2_buffer vb;
struct list_head list;
struct fimc_addr addr;
int index;
};
/**
* 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
* @ o_height : original image height as set by S_FMT
* @ offs_h : image horizontal pixel offset
* @ offs_v : image vertical pixel offset
* @ width : image pixel width
* @ height : image pixel weight
* @ payload : image size in bytes ( w x h x bpp )
* @ bytesperline : bytesperline value for each plane
* @ addr : image frame buffer DMA addresses
* @ dma_offset : DMA offset in bytes
* @ fmt : fimc color format pointer
* @ alpha : alpha value
*/
struct fimc_frame {
u32 f_width;
u32 f_height;
u32 o_width;
u32 o_height;
u32 offs_h;
u32 offs_v;
u32 width;
u32 height;
unsigned int payload[VIDEO_MAX_PLANES];
unsigned int bytesperline[VIDEO_MAX_PLANES];
struct fimc_addr addr;
struct fimc_dma_offset dma_offset;
const struct fimc_fmt *fmt;
u8 alpha;
};
/**
* struct fimc_m2m_device - v4l2 memory - to - memory device data
* @ vfd : the video device node for v4l2 m2m mode
* @ m2m_dev : v4l2 memory - to - memory device data
* @ ctx : hardware context data
* @ refcnt : the reference counter
*/
struct fimc_m2m_device {
struct video_device vfd;
struct v4l2_m2m_dev *m2m_dev;
struct fimc_ctx *ctx;
int refcnt;
};
#define FIMC_SD_PAD_SINK_CAM 0
#define FIMC_SD_PAD_SINK_FIFO 1
#define FIMC_SD_PAD_SOURCE 2
#define FIMC_SD_PADS_NUM 3
/**
* struct fimc_vid_cap - camera capture device information
* @ ctx : hardware context data
* @ subdev : subdev exposing the FIMC processing block
* @ ve : exynos video device entity structure
* @ vd_pad : fimc video capture node pad
* @ sd_pads : fimc video processing block pads
* @ ci_fmt : image format at the FIMC camera input ( and the scaler output )
* @ wb_fmt : image format at the FIMC ISP Writeback input
* @ source_config : external image source related configuration structure
* @ 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
* @ streaming : is streaming in progress ?
* @ input : capture input type , grp_id of the attached subdev
* @ user_subdev_api : true if subdevs are not configured by the host driver
*/
struct fimc_vid_cap {
struct fimc_ctx *ctx;
struct v4l2_subdev subdev;
struct exynos_video_entity ve;
struct media_pad vd_pad;
struct media_pad sd_pads[FIMC_SD_PADS_NUM];
struct v4l2_mbus_framefmt ci_fmt;
struct v4l2_mbus_framefmt wb_fmt;
struct fimc_source_info source_config;
struct list_head pending_buf_q;
struct list_head active_buf_q;
struct vb2_queue vbq;
int active_buf_cnt;
int buf_index;
unsigned int frame_count;
unsigned int reqbufs_count;
bool streaming;
u32 input;
bool user_subdev_api;
};
/**
* struct fimc_pix_limit - image pixel size limits in various IP configurations
*
* @ scaler_en_w : max input pixel width when the scaler is enabled
* @ scaler_dis_w : max input pixel width when the scaler is disabled
* @ in_rot_en_h : max input width with the input rotator is on
* @ in_rot_dis_w : max input width with the input rotator is off
* @ out_rot_en_w : max output width with the output rotator on
* @ out_rot_dis_w : max output width with the output rotator off
*/
struct fimc_pix_limit {
u16 scaler_en_w;
u16 scaler_dis_w;
u16 in_rot_en_h;
u16 in_rot_dis_w;
u16 out_rot_en_w;
u16 out_rot_dis_w;
};
/**
* struct fimc_variant - FIMC device variant information
* @ has_inp_rot : set if has input rotator
* @ has_out_rot : set if has output rotator
* @ has_mainscaler_ext : 1 if extended mainscaler ratios in CIEXTEN register
* are present in this IP revision
* @ has_cam_if : set if this instance has a camera input interface
* @ has_isp_wb : set if this instance has ISP writeback input
* @ pix_limit : pixel size constraints for the scaler
* @ min_inp_pixsize : minimum input pixel size
* @ min_out_pixsize : minimum output pixel size
* @ hor_offs_align : horizontal pixel offset alignment
* @ min_vsize_align : minimum vertical pixel size alignment
*/
struct fimc_variant {
unsigned int has_inp_rot:1 ;
unsigned int has_out_rot:1 ;
unsigned int has_mainscaler_ext:1 ;
unsigned int has_cam_if:1 ;
unsigned int has_isp_wb:1 ;
const struct fimc_pix_limit *pix_limit;
u16 min_inp_pixsize;
u16 min_out_pixsize;
u16 hor_offs_align;
u16 min_vsize_align;
};
/**
* struct fimc_drvdata - per device type driver data
* @ variant : variant information for this device
* @ num_entities : number of fimc instances available in a SoC
* @ lclk_frequency : local bus clock frequency
* @ cistatus2 : 1 if the FIMC IPs have CISTATUS2 register
* @ dma_pix_hoff : the horizontal DMA offset unit : 1 - pixels , 0 - bytes
* @ alpha_color : 1 if alpha color component is supported
* @ out_buf_count : maximum number of output DMA buffers supported
*/
struct fimc_drvdata {
const struct fimc_variant *variant[FIMC_MAX_DEVS];
int num_entities;
unsigned long lclk_frequency;
/* Fields common to all FIMC IP instances */
u8 cistatus2;
u8 dma_pix_hoff;
u8 alpha_color;
u8 out_buf_count;
};
#define fimc_get_drvdata(_pdev) \
((struct fimc_drvdata *) platform_get_device_id(_pdev)->driver_data)
struct fimc_ctx;
/**
* 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
* @ sysreg : pointer to the SYSREG regmap
* @ variant : the IP variant information
* @ drv_data : driver data
* @ id : FIMC device index ( 0 . . FIMC_MAX_DEVS )
* @ clock : clocks required for FIMC operation
* @ regs : the mapped hardware registers
* @ irq_queue : interrupt handler waitqueue
* @ v4l2_dev : root v4l2_device
* @ m2m : memory - to - memory V4L2 device information
* @ 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 s5p_platform_fimc *pdata;
struct regmap *sysreg;
const struct fimc_variant *variant;
const struct fimc_drvdata *drv_data;
int id;
struct clk *clock[MAX_FIMC_CLOCKS];
void __iomem *regs;
wait_queue_head_t irq_queue;
struct v4l2_device *v4l2_dev;
struct fimc_m2m_device m2m;
struct fimc_vid_cap vid_cap;
unsigned long state;
};
/**
* struct fimc_ctrls - v4l2 controls structure
* @ handler : the control handler
* @ colorfx : image effect control
* @ colorfx_cbcr : Cb / Cr coefficients control
* @ rotate : image rotation control
* @ hflip : horizontal flip control
* @ vflip : vertical flip control
* @ alpha : RGB alpha control
* @ ready : true if @ handler is initialized
*/
struct fimc_ctrls {
struct v4l2_ctrl_handler handler;
struct {
struct v4l2_ctrl *colorfx;
struct v4l2_ctrl *colorfx_cbcr;
};
struct v4l2_ctrl *rotate;
struct v4l2_ctrl *hflip;
struct v4l2_ctrl *vflip;
struct v4l2_ctrl *alpha;
bool ready;
};
/**
* struct fimc_ctx - the device context data
* @ s_frame : source frame properties
* @ d_frame : destination frame properties
* @ out_order_1p : output 1 - plane YCBCR order
* @ out_order_2p : output 2 - plane YCBCR order
* @ in_order_1p : input 1 - plane YCBCR order
* @ in_order_2p : input 2 - plane YCBCR order
* @ in_path : input mode ( DMA or camera )
* @ out_path : output mode ( DMA or FIFO )
* @ scaler : image scaler properties
* @ effect : image effect
* @ rotation : image clockwise rotation in degrees
* @ hflip : indicates image horizontal flip if set
* @ vflip : indicates image vertical flip if set
* @ flags : additional flags for image conversion
* @ state : flags to keep track of user configuration
* @ fimc_dev : the FIMC device this context applies to
* @ fh : v4l2 file handle
* @ ctrls : v4l2 controls structure
*/
struct fimc_ctx {
struct fimc_frame s_frame;
struct fimc_frame d_frame;
u32 out_order_1p;
u32 out_order_2p;
u32 in_order_1p;
u32 in_order_2p;
enum fimc_datapath in_path;
enum fimc_datapath out_path;
struct fimc_scaler scaler;
struct fimc_effect effect;
int rotation;
unsigned int hflip:1 ;
unsigned int vflip:1 ;
u32 flags;
u32 state;
struct fimc_dev *fimc_dev;
struct v4l2_fh fh;
struct fimc_ctrls ctrls;
};
#define fh_to_ctx(__fh) container_of(__fh, struct fimc_ctx, fh)
static inline void set_frame_bounds(struct fimc_frame *f, u32 width, u32 height)
{
f->o_width = width;
f->o_height = height;
f->f_width = width;
f->f_height = height;
}
static inline void set_frame_crop(struct fimc_frame *f,
u32 left, u32 top, u32 width, u32 height)
{
f->offs_h = left;
f->offs_v = top;
f->width = width;
f->height = height;
}
static inline u32 fimc_get_format_depth(const struct fimc_fmt *ff)
{
u32 i, depth = 0 ;
if (ff != NULL)
for (i = 0 ; i < ff->colplanes; i++)
depth += ff->depth[i];
return depth;
}
static inline bool fimc_capture_active(struct fimc_dev *fimc)
{
unsigned long flags;
bool ret;
spin_lock_irqsave(&fimc->slock, flags);
ret = !!(fimc->state & (1 << ST_CAPT_RUN) ||
fimc->state & (1 << ST_CAPT_PEND));
spin_unlock_irqrestore(&fimc->slock, flags);
return ret;
}
static inline void fimc_ctx_state_set(u32 state, struct fimc_ctx *ctx)
{
unsigned long flags;
spin_lock_irqsave(&ctx->fimc_dev->slock, flags);
ctx->state |= state;
spin_unlock_irqrestore(&ctx->fimc_dev->slock, flags);
}
static inline bool fimc_ctx_state_is_set(u32 mask, struct fimc_ctx *ctx)
{
unsigned long flags;
bool ret;
spin_lock_irqsave(&ctx->fimc_dev->slock, flags);
ret = (ctx->state & mask) == mask;
spin_unlock_irqrestore(&ctx->fimc_dev->slock, flags);
return ret;
}
static inline int tiled_fmt(const struct fimc_fmt *fmt)
{
return fmt->fourcc == V4L2_PIX_FMT_NV12MT;
}
static inline bool fimc_jpeg_fourcc(u32 pixelformat)
{
return (pixelformat == V4L2_PIX_FMT_JPEG ||
pixelformat == V4L2_PIX_FMT_S5C_UYVY_JPG);
}
static inline bool fimc_user_defined_mbus_fmt(u32 code)
{
return (code == MEDIA_BUS_FMT_JPEG_1X8 ||
code == MEDIA_BUS_FMT_S5C_UYVY_JPEG_1X8);
}
/* Return the alpha component bit mask */
static inline int fimc_get_alpha_mask(const struct fimc_fmt *fmt)
{
switch (fmt->color) {
case FIMC_FMT_RGB444: return 0 x0f;
case FIMC_FMT_RGB555: return 0 x01;
case FIMC_FMT_RGB888: return 0 xff;
default : return 0 ;
};
}
static inline struct fimc_frame *ctx_get_frame(struct fimc_ctx *ctx,
enum v4l2_buf_type type)
{
struct fimc_frame *frame;
if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE ||
type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
if (fimc_ctx_state_is_set(FIMC_CTX_M2M, ctx))
frame = &ctx->s_frame;
else
return ERR_PTR(-EINVAL);
} else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ||
type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
frame = &ctx->d_frame;
} else {
v4l2_err(ctx->fimc_dev->v4l2_dev,
"Wrong buffer/video queue type (%d)\n" , type);
return ERR_PTR(-EINVAL);
}
return frame;
}
/* -----------------------------------------------------*/
/* fimc-core.c */
int fimc_ctrls_create(struct fimc_ctx *ctx);
void fimc_ctrls_delete(struct fimc_ctx *ctx);
void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active);
void fimc_alpha_ctrl_update(struct fimc_ctx *ctx);
void __fimc_get_format(const struct fimc_frame *frame, struct v4l2_format *f);
void fimc_adjust_mplane_format(const struct fimc_fmt *fmt, u32 width, u32 height,
struct v4l2_pix_format_mplane *pix);
const struct fimc_fmt *fimc_find_format(const u32 *pixelformat,
const u32 *mbus_code,
unsigned int mask, int index);
const struct fimc_fmt *fimc_get_format(unsigned int index);
int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh,
int dw, int dh, int rotation);
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 vb2_buffer *vb,
const struct fimc_frame *frame, struct fimc_addr *addr);
void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f);
void fimc_set_yuv_order(struct fimc_ctx *ctx);
void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf);
int fimc_register_m2m_device(struct fimc_dev *fimc,
struct v4l2_device *v4l2_dev);
void fimc_unregister_m2m_device(struct fimc_dev *fimc);
int fimc_register_driver(void );
void fimc_unregister_driver(void );
#ifdef CONFIG_MFD_SYSCON
static inline struct regmap * fimc_get_sysreg_regmap(struct device_node *node)
{
return syscon_regmap_lookup_by_phandle(node, "samsung,sysreg" );
}
#else
#define fimc_get_sysreg_regmap(node) (NULL)
#endif
/* -----------------------------------------------------*/
/* fimc-m2m.c */
void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state);
/* -----------------------------------------------------*/
/* fimc-capture.c */
int fimc_initialize_capture_subdev(struct fimc_dev *fimc);
void fimc_unregister_capture_subdev(struct fimc_dev *fimc);
int fimc_capture_ctrls_create(struct fimc_dev *fimc);
void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
void *arg);
int fimc_capture_suspend(struct fimc_dev *fimc);
int fimc_capture_resume(struct fimc_dev *fimc);
/*
* Buffer list manipulation functions . Must be called with fimc . slock held .
*/
/**
* fimc_active_queue_add - add buffer to the capture active buffers queue
* @ vid_cap : camera capture device information
* @ buf : buffer to add to the active buffers list
*/
static inline void fimc_active_queue_add(struct fimc_vid_cap *vid_cap,
struct fimc_vid_buffer *buf)
{
list_add_tail(&buf->list, &vid_cap->active_buf_q);
vid_cap->active_buf_cnt++;
}
/**
* fimc_active_queue_pop - pop buffer from the capture active buffers queue
* @ vid_cap : camera capture device information
*
* The caller must assure the active_buf_q list is not empty .
*/
static inline struct fimc_vid_buffer *fimc_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, list);
list_del(&buf->list);
vid_cap->active_buf_cnt--;
return buf;
}
/**
* fimc_pending_queue_add - add buffer to the capture pending buffers queue
* @ vid_cap : camera capture device information
* @ buf : buffer to add to the pending buffers list
*/
static inline void fimc_pending_queue_add(struct fimc_vid_cap *vid_cap,
struct fimc_vid_buffer *buf)
{
list_add_tail(&buf->list, &vid_cap->pending_buf_q);
}
/**
* fimc_pending_queue_pop - pop buffer from the capture pending buffers queue
* @ vid_cap : camera capture device information
*
* The caller must assure the pending_buf_q list is not empty .
*/
static inline struct fimc_vid_buffer *fimc_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, list);
list_del(&buf->list);
return buf;
}
#endif /* FIMC_CORE_H_ */
Messung V0.5 in Prozent C=95 H=100 G=97
¤ Dauer der Verarbeitung: 0.21 Sekunden
(vorverarbeitet am 2026-10-01)
¤
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