diff options
author | Stephen Rothwell <sfr@canb.auug.org.au> | 2011-03-01 12:32:53 +1100 |
---|---|---|
committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2011-03-01 12:32:53 +1100 |
commit | 378403e185baf88e9cce59f75d5410b07a29a72a (patch) | |
tree | fde545ca7f71406aa0dc896b98bdb59c74eb1568 /include | |
parent | a1189a34a02f394a9422a1c7e7620553bbb03b10 (diff) | |
parent | dbcd7c6230b2f3cd79144f95e9008f26d9d6ac48 (diff) |
Merge commit 'refs/next/20110225/v4l-dvb'
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/videodev2.h | 131 | ||||
-rw-r--r-- | include/media/noon010pc30.h | 28 | ||||
-rw-r--r-- | include/media/rc-map.h | 1 | ||||
-rw-r--r-- | include/media/s5p_fimc.h (renamed from include/media/s3c_fimc.h) | 20 | ||||
-rw-r--r-- | include/media/tuner.h | 1 | ||||
-rw-r--r-- | include/media/v4l2-chip-ident.h | 3 | ||||
-rw-r--r-- | include/media/v4l2-ioctl.h | 16 | ||||
-rw-r--r-- | include/media/v4l2-mem2mem.h | 56 | ||||
-rw-r--r-- | include/media/videobuf2-core.h | 380 | ||||
-rw-r--r-- | include/media/videobuf2-dma-contig.h | 29 | ||||
-rw-r--r-- | include/media/videobuf2-dma-sg.h | 32 | ||||
-rw-r--r-- | include/media/videobuf2-memops.h | 45 | ||||
-rw-r--r-- | include/media/videobuf2-vmalloc.h | 20 |
13 files changed, 729 insertions, 33 deletions
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 5f6f47044abf..5122b265dde6 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -70,6 +70,7 @@ * Moved from videodev.h */ #define VIDEO_MAX_FRAME 32 +#define VIDEO_MAX_PLANES 8 #ifndef __KERNEL__ @@ -157,9 +158,23 @@ enum v4l2_buf_type { /* Experimental */ V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8, #endif + V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9, + V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE = 10, V4L2_BUF_TYPE_PRIVATE = 0x80, }; +#define V4L2_TYPE_IS_MULTIPLANAR(type) \ + ((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE \ + || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) + +#define V4L2_TYPE_IS_OUTPUT(type) \ + ((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT \ + || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE \ + || (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY \ + || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY \ + || (type) == V4L2_BUF_TYPE_VBI_OUTPUT \ + || (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) + enum v4l2_tuner_type { V4L2_TUNER_RADIO = 1, V4L2_TUNER_ANALOG_TV = 2, @@ -245,6 +260,11 @@ struct v4l2_capability { #define V4L2_CAP_HW_FREQ_SEEK 0x00000400 /* Can do hardware frequency seek */ #define V4L2_CAP_RDS_OUTPUT 0x00000800 /* Is an RDS encoder */ +/* Is a video capture device that supports multiplanar formats */ +#define V4L2_CAP_VIDEO_CAPTURE_MPLANE 0x00001000 +/* Is a video output device that supports multiplanar formats */ +#define V4L2_CAP_VIDEO_OUTPUT_MPLANE 0x00002000 + #define V4L2_CAP_TUNER 0x00010000 /* has a tuner */ #define V4L2_CAP_AUDIO 0x00020000 /* has audio support */ #define V4L2_CAP_RADIO 0x00040000 /* is a radio device */ @@ -319,6 +339,13 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_NV16 v4l2_fourcc('N', 'V', '1', '6') /* 16 Y/CbCr 4:2:2 */ #define V4L2_PIX_FMT_NV61 v4l2_fourcc('N', 'V', '6', '1') /* 16 Y/CrCb 4:2:2 */ +/* two non contiguous planes - one Y, one Cr + Cb interleaved */ +#define V4L2_PIX_FMT_NV12M v4l2_fourcc('N', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 */ +#define V4L2_PIX_FMT_NV12MT v4l2_fourcc('T', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 64x32 macroblocks */ + +/* three non contiguous planes - Y, Cb, Cr */ +#define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2') /* 12 YUV420 planar */ + /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */ #define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B', 'A', '8', '1') /* 8 BGBG.. GRGR.. */ #define V4L2_PIX_FMT_SGBRG8 v4l2_fourcc('G', 'B', 'R', 'G') /* 8 GBGB.. RGRG.. */ @@ -517,6 +544,62 @@ struct v4l2_requestbuffers { __u32 reserved[2]; }; +/** + * struct v4l2_plane - plane info for multi-planar buffers + * @bytesused: number of bytes occupied by data in the plane (payload) + * @length: size of this plane (NOT the payload) in bytes + * @mem_offset: when memory in the associated struct v4l2_buffer is + * V4L2_MEMORY_MMAP, equals the offset from the start of + * the device memory for this plane (or is a "cookie" that + * should be passed to mmap() called on the video node) + * @userptr: when memory is V4L2_MEMORY_USERPTR, a userspace pointer + * pointing to this plane + * @data_offset: offset in the plane to the start of data; usually 0, + * unless there is a header in front of the data + * + * Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer + * with two planes can have one plane for Y, and another for interleaved CbCr + * components. Each plane can reside in a separate memory buffer, or even in + * a completely separate memory node (e.g. in embedded devices). + */ +struct v4l2_plane { + __u32 bytesused; + __u32 length; + union { + __u32 mem_offset; + unsigned long userptr; + } m; + __u32 data_offset; + __u32 reserved[11]; +}; + +/** + * struct v4l2_buffer - video buffer info + * @index: id number of the buffer + * @type: buffer type (type == *_MPLANE for multiplanar buffers) + * @bytesused: number of bytes occupied by data in the buffer (payload); + * unused (set to 0) for multiplanar buffers + * @flags: buffer informational flags + * @field: field order of the image in the buffer + * @timestamp: frame timestamp + * @timecode: frame timecode + * @sequence: sequence count of this frame + * @memory: the method, in which the actual video data is passed + * @offset: for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP; + * offset from the start of the device memory for this plane, + * (or a "cookie" that should be passed to mmap() as offset) + * @userptr: for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR; + * a userspace pointer pointing to this buffer + * @planes: for multiplanar buffers; userspace pointer to the array of plane + * info structs for this buffer + * @length: size in bytes of the buffer (NOT its payload) for single-plane + * buffers (when type != *_MPLANE); number of elements in the + * planes array for multi-plane buffers + * @input: input number from which the video data has has been captured + * + * Contains data exchanged by application and driver using one of the Streaming + * I/O methods. + */ struct v4l2_buffer { __u32 index; enum v4l2_buf_type type; @@ -532,6 +615,7 @@ struct v4l2_buffer { union { __u32 offset; unsigned long userptr; + struct v4l2_plane *planes; } m; __u32 length; __u32 input; @@ -1622,12 +1706,56 @@ struct v4l2_mpeg_vbi_fmt_ivtv { * A G G R E G A T E S T R U C T U R E S */ -/* Stream data format +/** + * struct v4l2_plane_pix_format - additional, per-plane format definition + * @sizeimage: maximum size in bytes required for data, for which + * this plane will be used + * @bytesperline: distance in bytes between the leftmost pixels in two + * adjacent lines + */ +struct v4l2_plane_pix_format { + __u32 sizeimage; + __u16 bytesperline; + __u16 reserved[7]; +} __attribute__ ((packed)); + +/** + * struct v4l2_pix_format_mplane - multiplanar format definition + * @width: image width in pixels + * @height: image height in pixels + * @pixelformat: little endian four character code (fourcc) + * @field: field order (for interlaced video) + * @colorspace: supplemental to pixelformat + * @plane_fmt: per-plane information + * @num_planes: number of planes for this format + */ +struct v4l2_pix_format_mplane { + __u32 width; + __u32 height; + __u32 pixelformat; + enum v4l2_field field; + enum v4l2_colorspace colorspace; + + struct v4l2_plane_pix_format plane_fmt[VIDEO_MAX_PLANES]; + __u8 num_planes; + __u8 reserved[11]; +} __attribute__ ((packed)); + +/** + * struct v4l2_format - stream data format + * @type: type of the data stream + * @pix: definition of an image format + * @pix_mp: definition of a multiplanar image format + * @win: definition of an overlaid image + * @vbi: raw VBI capture or output parameters + * @sliced: sliced VBI capture or output parameters + * @raw_data: placeholder for future extensions and custom formats */ struct v4l2_format { enum v4l2_buf_type type; union { struct v4l2_pix_format pix; /* V4L2_BUF_TYPE_VIDEO_CAPTURE */ + struct v4l2_pix_format_mplane pix_mp; /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */ struct v4l2_window win; /* V4L2_BUF_TYPE_VIDEO_OVERLAY */ struct v4l2_vbi_format vbi; /* V4L2_BUF_TYPE_VBI_CAPTURE */ struct v4l2_sliced_vbi_format sliced; /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */ @@ -1635,7 +1763,6 @@ struct v4l2_format { } fmt; }; - /* Stream type-dependent parameters */ struct v4l2_streamparm { diff --git a/include/media/noon010pc30.h b/include/media/noon010pc30.h new file mode 100644 index 000000000000..58eafee36b30 --- /dev/null +++ b/include/media/noon010pc30.h @@ -0,0 +1,28 @@ +/* + * Driver header for NOON010PC30L camera sensor chip. + * + * Copyright (c) 2010 Samsung Electronics, Co. Ltd + * Contact: Sylwester Nawrocki <s.nawrocki@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef NOON010PC30_H +#define NOON010PC30_H + +/** + * @clk_rate: the clock frequency in Hz + * @gpio_nreset: GPIO driving nRESET pin + * @gpio_nstby: GPIO driving nSTBY pin + */ + +struct noon010pc30_platform_data { + unsigned long clk_rate; + int gpio_nreset; + int gpio_nstby; +}; + +#endif /* NOON010PC30_H */ diff --git a/include/media/rc-map.h b/include/media/rc-map.h index ee9e2f747c76..461711741d67 100644 --- a/include/media/rc-map.h +++ b/include/media/rc-map.h @@ -131,6 +131,7 @@ void rc_map_init(void); #define RC_MAP_REAL_AUDIO_220_32_KEYS "rc-real-audio-220-32-keys" #define RC_MAP_STREAMZAP "rc-streamzap" #define RC_MAP_TBS_NEC "rc-tbs-nec" +#define RC_MAP_TECHNISAT_USB2 "rc-technisat-usb2" #define RC_MAP_TERRATEC_CINERGY_XS "rc-terratec-cinergy-xs" #define RC_MAP_TERRATEC_SLIM "rc-terratec-slim" #define RC_MAP_TEVII_NEC "rc-tevii-nec" diff --git a/include/media/s3c_fimc.h b/include/media/s5p_fimc.h index ca1b6738e4a4..0d457cac8f7d 100644 --- a/include/media/s3c_fimc.h +++ b/include/media/s5p_fimc.h @@ -9,8 +9,8 @@ * published by the Free Software Foundation. */ -#ifndef S3C_FIMC_H_ -#define S3C_FIMC_H_ +#ifndef S5P_FIMC_H_ +#define S5P_FIMC_H_ enum cam_bus_type { FIMC_ITU_601 = 1, @@ -27,22 +27,22 @@ enum cam_bus_type { struct i2c_board_info; /** - * struct s3c_fimc_isp_info - image sensor information required for host + * struct s5p_fimc_isp_info - image sensor information required for host * interace configuration. * * @board_info: pointer to I2C subdevice's board info + * @clk_frequency: frequency of the clock the host interface provides to sensor * @bus_type: determines bus type, MIPI, ITU-R BT.601 etc. * @i2c_bus_num: i2c control bus id the sensor is attached to * @mux_id: FIMC camera interface multiplexer index (separate for MIPI and ITU) - * @bus_width: camera data bus width in bits * @flags: flags defining bus signals polarity inversion (High by default) */ -struct s3c_fimc_isp_info { +struct s5p_fimc_isp_info { struct i2c_board_info *board_info; + unsigned long clk_frequency; enum cam_bus_type bus_type; u16 i2c_bus_num; u16 mux_id; - u16 bus_width; u16 flags; }; @@ -50,11 +50,11 @@ struct s3c_fimc_isp_info { #define FIMC_MAX_CAMIF_CLIENTS 2 /** - * struct s3c_platform_fimc - camera host interface platform data + * struct s5p_platform_fimc - camera host interface platform data * * @isp_info: properties of camera sensor required for host interface setup */ -struct s3c_platform_fimc { - struct s3c_fimc_isp_info *isp_info[FIMC_MAX_CAMIF_CLIENTS]; +struct s5p_platform_fimc { + struct s5p_fimc_isp_info *isp_info[FIMC_MAX_CAMIF_CLIENTS]; }; -#endif /* S3C_FIMC_H_ */ +#endif /* S5P_FIMC_H_ */ diff --git a/include/media/tuner.h b/include/media/tuner.h index 51811eac46f1..5eec5292d01e 100644 --- a/include/media/tuner.h +++ b/include/media/tuner.h @@ -131,6 +131,7 @@ #define TUNER_NXP_TDA18271 83 #define TUNER_SONY_BTF_PXN01Z 84 #define TUNER_PHILIPS_FQ1236_MK5 85 /* NTSC, TDA9885, no FM radio */ +#define TUNER_TENA_TNF_5337 86 /* tv card specific */ #define TDA9887_PRESENT (1<<0) diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h index 44fe44ec9ea7..ff4a52ca881b 100644 --- a/include/media/v4l2-chip-ident.h +++ b/include/media/v4l2-chip-ident.h @@ -209,6 +209,9 @@ enum { /* module sn9c20x: just ident 10000 */ V4L2_IDENT_SN9C20X = 10000, + /* Siliconfile sensors: reserved range 10100 - 10199 */ + V4L2_IDENT_NOON010PC30 = 10100, + /* module cx231xx and cx25840 */ V4L2_IDENT_CX2310X_AV = 23099, /* Integrated A/V decoder; not in '100 */ V4L2_IDENT_CX23100 = 23100, diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h index 67df37542c68..1572c7f25777 100644 --- a/include/media/v4l2-ioctl.h +++ b/include/media/v4l2-ioctl.h @@ -37,6 +37,10 @@ struct v4l2_ioctl_ops { struct v4l2_fmtdesc *f); int (*vidioc_enum_fmt_vid_out) (struct file *file, void *fh, struct v4l2_fmtdesc *f); + int (*vidioc_enum_fmt_vid_cap_mplane)(struct file *file, void *fh, + struct v4l2_fmtdesc *f); + int (*vidioc_enum_fmt_vid_out_mplane)(struct file *file, void *fh, + struct v4l2_fmtdesc *f); int (*vidioc_enum_fmt_type_private)(struct file *file, void *fh, struct v4l2_fmtdesc *f); @@ -57,6 +61,10 @@ struct v4l2_ioctl_ops { struct v4l2_format *f); int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh, struct v4l2_format *f); + int (*vidioc_g_fmt_vid_cap_mplane)(struct file *file, void *fh, + struct v4l2_format *f); + int (*vidioc_g_fmt_vid_out_mplane)(struct file *file, void *fh, + struct v4l2_format *f); int (*vidioc_g_fmt_type_private)(struct file *file, void *fh, struct v4l2_format *f); @@ -77,6 +85,10 @@ struct v4l2_ioctl_ops { struct v4l2_format *f); int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh, struct v4l2_format *f); + int (*vidioc_s_fmt_vid_cap_mplane)(struct file *file, void *fh, + struct v4l2_format *f); + int (*vidioc_s_fmt_vid_out_mplane)(struct file *file, void *fh, + struct v4l2_format *f); int (*vidioc_s_fmt_type_private)(struct file *file, void *fh, struct v4l2_format *f); @@ -97,6 +109,10 @@ struct v4l2_ioctl_ops { struct v4l2_format *f); int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh, struct v4l2_format *f); + int (*vidioc_try_fmt_vid_cap_mplane)(struct file *file, void *fh, + struct v4l2_format *f); + int (*vidioc_try_fmt_vid_out_mplane)(struct file *file, void *fh, + struct v4l2_format *f); int (*vidioc_try_fmt_type_private)(struct file *file, void *fh, struct v4l2_format *f); diff --git a/include/media/v4l2-mem2mem.h b/include/media/v4l2-mem2mem.h index 8d149f1c58d0..bf5eaaf3bd97 100644 --- a/include/media/v4l2-mem2mem.h +++ b/include/media/v4l2-mem2mem.h @@ -17,7 +17,7 @@ #ifndef _MEDIA_V4L2_MEM2MEM_H #define _MEDIA_V4L2_MEM2MEM_H -#include <media/videobuf-core.h> +#include <media/videobuf2-core.h> /** * struct v4l2_m2m_ops - mem-to-mem device driver callbacks @@ -45,17 +45,20 @@ struct v4l2_m2m_ops { void (*device_run)(void *priv); int (*job_ready)(void *priv); void (*job_abort)(void *priv); + void (*lock)(void *priv); + void (*unlock)(void *priv); }; struct v4l2_m2m_dev; struct v4l2_m2m_queue_ctx { /* private: internal use only */ - struct videobuf_queue q; + struct vb2_queue q; /* Queue for buffers ready to be processed as soon as this * instance receives access to the device */ struct list_head rdy_queue; + spinlock_t rdy_spinlock; u8 num_rdy; }; @@ -72,19 +75,31 @@ struct v4l2_m2m_ctx { /* For device job queue */ struct list_head queue; unsigned long job_flags; + wait_queue_head_t finished; /* Instance private data */ void *priv; }; +struct v4l2_m2m_buffer { + struct vb2_buffer vb; + struct list_head list; +}; + void *v4l2_m2m_get_curr_priv(struct v4l2_m2m_dev *m2m_dev); -struct videobuf_queue *v4l2_m2m_get_vq(struct v4l2_m2m_ctx *m2m_ctx, +struct vb2_queue *v4l2_m2m_get_vq(struct v4l2_m2m_ctx *m2m_ctx, enum v4l2_buf_type type); void v4l2_m2m_job_finish(struct v4l2_m2m_dev *m2m_dev, struct v4l2_m2m_ctx *m2m_ctx); +static inline void +v4l2_m2m_buf_done(struct vb2_buffer *buf, enum vb2_buffer_state state) +{ + vb2_buffer_done(buf, state); +} + int v4l2_m2m_reqbufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, struct v4l2_requestbuffers *reqbufs); @@ -110,13 +125,13 @@ int v4l2_m2m_mmap(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, struct v4l2_m2m_dev *v4l2_m2m_init(struct v4l2_m2m_ops *m2m_ops); void v4l2_m2m_release(struct v4l2_m2m_dev *m2m_dev); -struct v4l2_m2m_ctx *v4l2_m2m_ctx_init(void *priv, struct v4l2_m2m_dev *m2m_dev, - void (*vq_init)(void *priv, struct videobuf_queue *, - enum v4l2_buf_type)); +struct v4l2_m2m_ctx *v4l2_m2m_ctx_init(struct v4l2_m2m_dev *m2m_dev, + void *drv_priv, + int (*queue_init)(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)); + void v4l2_m2m_ctx_release(struct v4l2_m2m_ctx *m2m_ctx); -void v4l2_m2m_buf_queue(struct v4l2_m2m_ctx *m2m_ctx, struct videobuf_queue *vq, - struct videobuf_buffer *vb); +void v4l2_m2m_buf_queue(struct v4l2_m2m_ctx *m2m_ctx, struct vb2_buffer *vb); /** * v4l2_m2m_num_src_bufs_ready() - return the number of source buffers ready for @@ -138,7 +153,7 @@ unsigned int v4l2_m2m_num_dst_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx) return m2m_ctx->out_q_ctx.num_rdy; } -void *v4l2_m2m_next_buf(struct v4l2_m2m_ctx *m2m_ctx, enum v4l2_buf_type type); +void *v4l2_m2m_next_buf(struct v4l2_m2m_queue_ctx *q_ctx); /** * v4l2_m2m_next_src_buf() - return next source buffer from the list of ready @@ -146,7 +161,7 @@ void *v4l2_m2m_next_buf(struct v4l2_m2m_ctx *m2m_ctx, enum v4l2_buf_type type); */ static inline void *v4l2_m2m_next_src_buf(struct v4l2_m2m_ctx *m2m_ctx) { - return v4l2_m2m_next_buf(m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); + return v4l2_m2m_next_buf(&m2m_ctx->out_q_ctx); } /** @@ -155,29 +170,28 @@ static inline void *v4l2_m2m_next_src_buf(struct v4l2_m2m_ctx *m2m_ctx) */ static inline void *v4l2_m2m_next_dst_buf(struct v4l2_m2m_ctx *m2m_ctx) { - return v4l2_m2m_next_buf(m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); + return v4l2_m2m_next_buf(&m2m_ctx->cap_q_ctx); } /** - * v4l2_m2m_get_src_vq() - return videobuf_queue for source buffers + * v4l2_m2m_get_src_vq() - return vb2_queue for source buffers */ static inline -struct videobuf_queue *v4l2_m2m_get_src_vq(struct v4l2_m2m_ctx *m2m_ctx) +struct vb2_queue *v4l2_m2m_get_src_vq(struct v4l2_m2m_ctx *m2m_ctx) { - return v4l2_m2m_get_vq(m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); + return &m2m_ctx->out_q_ctx.q; } /** - * v4l2_m2m_get_dst_vq() - return videobuf_queue for destination buffers + * v4l2_m2m_get_dst_vq() - return vb2_queue for destination buffers */ static inline -struct videobuf_queue *v4l2_m2m_get_dst_vq(struct v4l2_m2m_ctx *m2m_ctx) +struct vb2_queue *v4l2_m2m_get_dst_vq(struct v4l2_m2m_ctx *m2m_ctx) { - return v4l2_m2m_get_vq(m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); + return &m2m_ctx->cap_q_ctx.q; } -void *v4l2_m2m_buf_remove(struct v4l2_m2m_ctx *m2m_ctx, - enum v4l2_buf_type type); +void *v4l2_m2m_buf_remove(struct v4l2_m2m_queue_ctx *q_ctx); /** * v4l2_m2m_src_buf_remove() - take off a source buffer from the list of ready @@ -185,7 +199,7 @@ void *v4l2_m2m_buf_remove(struct v4l2_m2m_ctx *m2m_ctx, */ static inline void *v4l2_m2m_src_buf_remove(struct v4l2_m2m_ctx *m2m_ctx) { - return v4l2_m2m_buf_remove(m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); + return v4l2_m2m_buf_remove(&m2m_ctx->out_q_ctx); } /** @@ -194,7 +208,7 @@ static inline void *v4l2_m2m_src_buf_remove(struct v4l2_m2m_ctx *m2m_ctx) */ static inline void *v4l2_m2m_dst_buf_remove(struct v4l2_m2m_ctx *m2m_ctx) { - return v4l2_m2m_buf_remove(m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); + return v4l2_m2m_buf_remove(&m2m_ctx->cap_q_ctx); } #endif /* _MEDIA_V4L2_MEM2MEM_H */ diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h new file mode 100644 index 000000000000..0d71fc5efc46 --- /dev/null +++ b/include/media/videobuf2-core.h @@ -0,0 +1,380 @@ +/* + * videobuf2-core.h - V4L2 driver helper framework + * + * Copyright (C) 2010 Samsung Electronics + * + * Author: Pawel Osciak <p.osciak@samsung.com> + * + * 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. + */ +#ifndef _MEDIA_VIDEOBUF2_CORE_H +#define _MEDIA_VIDEOBUF2_CORE_H + +#include <linux/mm_types.h> +#include <linux/mutex.h> +#include <linux/poll.h> +#include <linux/videodev2.h> + +struct vb2_alloc_ctx; +struct vb2_fileio_data; + +/** + * struct vb2_mem_ops - memory handling/memory allocator operations + * @alloc: allocate video memory and, optionally, allocator private data, + * return NULL on failure or a pointer to allocator private, + * per-buffer data on success; the returned private structure + * will then be passed as buf_priv argument to other ops in this + * structure + * @put: inform the allocator that the buffer will no longer be used; + * usually will result in the allocator freeing the buffer (if + * no other users of this buffer are present); the buf_priv + * argument is the allocator private per-buffer structure + * previously returned from the alloc callback + * @get_userptr: acquire userspace memory for a hardware operation; used for + * USERPTR memory types; vaddr is the address passed to the + * videobuf layer when queuing a video buffer of USERPTR type; + * should return an allocator private per-buffer structure + * associated with the buffer on success, NULL on failure; + * the returned private structure will then be passed as buf_priv + * argument to other ops in this structure + * @put_userptr: inform the allocator that a USERPTR buffer will no longer + * be used + * @vaddr: return a kernel virtual address to a given memory buffer + * associated with the passed private structure or NULL if no + * such mapping exists + * @cookie: return allocator specific cookie for a given memory buffer + * associated with the passed private structure or NULL if not + * available + * @num_users: return the current number of users of a memory buffer; + * return 1 if the videobuf layer (or actually the driver using + * it) is the only user + * @mmap: setup a userspace mapping for a given memory buffer under + * the provided virtual memory region + * + * Required ops for USERPTR types: get_userptr, put_userptr. + * Required ops for MMAP types: alloc, put, num_users, mmap. + * Required ops for read/write access types: alloc, put, num_users, vaddr + */ +struct vb2_mem_ops { + void *(*alloc)(void *alloc_ctx, unsigned long size); + void (*put)(void *buf_priv); + + void *(*get_userptr)(void *alloc_ctx, unsigned long vaddr, + unsigned long size, int write); + void (*put_userptr)(void *buf_priv); + + void *(*vaddr)(void *buf_priv); + void *(*cookie)(void *buf_priv); + + unsigned int (*num_users)(void *buf_priv); + + int (*mmap)(void *buf_priv, struct vm_area_struct *vma); +}; + +struct vb2_plane { + void *mem_priv; + int mapped:1; +}; + +/** + * enum vb2_io_modes - queue access methods + * @VB2_MMAP: driver supports MMAP with streaming API + * @VB2_USERPTR: driver supports USERPTR with streaming API + * @VB2_READ: driver supports read() style access + * @VB2_WRITE: driver supports write() style access + */ +enum vb2_io_modes { + VB2_MMAP = (1 << 0), + VB2_USERPTR = (1 << 1), + VB2_READ = (1 << 2), + VB2_WRITE = (1 << 3), +}; + +/** + * enum vb2_fileio_flags - flags for selecting a mode of the file io emulator, + * by default the 'streaming' style is used by the file io emulator + * @VB2_FILEIO_READ_ONCE: report EOF after reading the first buffer + * @VB2_FILEIO_WRITE_IMMEDIATELY: queue buffer after each write() call + */ +enum vb2_fileio_flags { + VB2_FILEIO_READ_ONCE = (1 << 0), + VB2_FILEIO_WRITE_IMMEDIATELY = (1 << 1), +}; + +/** + * enum vb2_buffer_state - current video buffer state + * @VB2_BUF_STATE_DEQUEUED: buffer under userspace control + * @VB2_BUF_STATE_QUEUED: buffer queued in videobuf, but not in driver + * @VB2_BUF_STATE_ACTIVE: buffer queued in driver and possibly used + * in a hardware operation + * @VB2_BUF_STATE_DONE: buffer returned from driver to videobuf, but + * not yet dequeued to userspace + * @VB2_BUF_STATE_ERROR: same as above, but the operation on the buffer + * has ended with an error, which will be reported + * to the userspace when it is dequeued + */ +enum vb2_buffer_state { + VB2_BUF_STATE_DEQUEUED, + VB2_BUF_STATE_QUEUED, + VB2_BUF_STATE_ACTIVE, + VB2_BUF_STATE_DONE, + VB2_BUF_STATE_ERROR, +}; + +struct vb2_queue; + +/** + * struct vb2_buffer - represents a video buffer + * @v4l2_buf: struct v4l2_buffer associated with this buffer; can + * be read by the driver and relevant entries can be + * changed by the driver in case of CAPTURE types + * (such as timestamp) + * @v4l2_planes: struct v4l2_planes associated with this buffer; can + * be read by the driver and relevant entries can be + * changed by the driver in case of CAPTURE types + * (such as bytesused); NOTE that even for single-planar + * types, the v4l2_planes[0] struct should be used + * instead of v4l2_buf for filling bytesused - drivers + * should use the vb2_set_plane_payload() function for that + * @vb2_queue: the queue to which this driver belongs + * @num_planes: number of planes in the buffer + * on an internal driver queue + * @state: current buffer state; do not change + * @queued_entry: entry on the queued buffers list, which holds all + * buffers queued from userspace + * @done_entry: entry on the list that stores all buffers ready to + * be dequeued to userspace + * @planes: private per-plane information; do not change + * @num_planes_mapped: number of mapped planes; do not change + */ +struct vb2_buffer { + struct v4l2_buffer v4l2_buf; + struct v4l2_plane v4l2_planes[VIDEO_MAX_PLANES]; + + struct vb2_queue *vb2_queue; + + unsigned int num_planes; + +/* Private: internal use only */ + enum vb2_buffer_state state; + + struct list_head queued_entry; + struct list_head done_entry; + + struct vb2_plane planes[VIDEO_MAX_PLANES]; + unsigned int num_planes_mapped; +}; + +/** + * struct vb2_ops - driver-specific callbacks + * + * @queue_setup: called from a VIDIOC_REQBUFS handler, before + * memory allocation; driver should return the required + * number of buffers in num_buffers, the required number + * of planes per buffer in num_planes; the size of each + * plane should be set in the sizes[] array and optional + * per-plane allocator specific context in alloc_ctxs[] + * array + * @wait_prepare: release any locks taken while calling vb2 functions; + * it is called before an ioctl needs to wait for a new + * buffer to arrive; required to avoid a deadlock in + * blocking access type + * @wait_finish: reacquire all locks released in the previous callback; + * required to continue operation after sleeping while + * waiting for a new buffer to arrive + * @buf_init: called once after allocating a buffer (in MMAP case) + * or after acquiring a new USERPTR buffer; drivers may + * perform additional buffer-related initialization; + * initialization failure (return != 0) will prevent + * queue setup from completing successfully; optional + * @buf_prepare: called every time the buffer is queued from userspace; + * drivers may perform any initialization required before + * each hardware operation in this callback; + * if an error is returned, the buffer will not be queued + * in driver; optional + * @buf_finish: called before every dequeue of the buffer back to + * userspace; drivers may perform any operations required + * before userspace accesses the buffer; optional + * @buf_cleanup: called once before the buffer is freed; drivers may + * perform any additional cleanup; optional + * @start_streaming: called once before entering 'streaming' state; enables + * driver to receive buffers over buf_queue() callback + * @stop_streaming: called when 'streaming' state must be disabled; driver + * should stop any DMA transactions or wait until they + * finish and give back all buffers it got from buf_queue() + * callback; may use vb2_wait_for_all_buffers() function + * @buf_queue: passes buffer vb to the driver; driver may start + * hardware operation on this buffer; driver should give + * the buffer back by calling vb2_buffer_done() function + */ +struct vb2_ops { + int (*queue_setup)(struct vb2_queue *q, unsigned int *num_buffers, + unsigned int *num_planes, unsigned long sizes[], + void *alloc_ctxs[]); + + void (*wait_prepare)(struct vb2_queue *q); + void (*wait_finish)(struct vb2_queue *q); + + int (*buf_init)(struct vb2_buffer *vb); + int (*buf_prepare)(struct vb2_buffer *vb); + int (*buf_finish)(struct vb2_buffer *vb); + void (*buf_cleanup)(struct vb2_buffer *vb); + + int (*start_streaming)(struct vb2_queue *q); + int (*stop_streaming)(struct vb2_queue *q); + + void (*buf_queue)(struct vb2_buffer *vb); +}; + +/** + * struct vb2_queue - a videobuf queue + * + * @type: queue type (see V4L2_BUF_TYPE_* in linux/videodev2.h + * @io_modes: supported io methods (see vb2_io_modes enum) + * @io_flags: additional io flags (see vb2_fileio_flags enum) + * @ops: driver-specific callbacks + * @mem_ops: memory allocator specific callbacks + * @drv_priv: driver private data + * @buf_struct_size: size of the driver-specific buffer structure; + * "0" indicates the driver doesn't want to use a custom buffer + * structure type, so sizeof(struct vb2_buffer) will is used + * + * @memory: current memory type used + * @bufs: videobuf buffer structures + * @num_buffers: number of allocated/used buffers + * @queued_list: list of buffers currently queued from userspace + * @queued_count: number of buffers owned by the driver + * @done_list: list of buffers ready to be dequeued to userspace + * @done_lock: lock to protect done_list list + * @done_wq: waitqueue for processes waiting for buffers ready to be dequeued + * @alloc_ctx: memory type/allocator-specific contexts for each plane + * @streaming: current streaming state + * @fileio: file io emulator internal data, used only if emulator is active + */ +struct vb2_queue { + enum v4l2_buf_type type; + unsigned int io_modes; + unsigned int io_flags; + + const struct vb2_ops *ops; + const struct vb2_mem_ops *mem_ops; + void *drv_priv; + unsigned int buf_struct_size; + +/* private: internal use only */ + enum v4l2_memory memory; + struct vb2_buffer *bufs[VIDEO_MAX_FRAME]; + unsigned int num_buffers; + + struct list_head queued_list; + + atomic_t queued_count; + struct list_head done_list; + spinlock_t done_lock; + wait_queue_head_t done_wq; + + void *alloc_ctx[VIDEO_MAX_PLANES]; + + unsigned int streaming:1; + + struct vb2_fileio_data *fileio; +}; + +void *vb2_plane_vaddr(struct vb2_buffer *vb, unsigned int plane_no); +void *vb2_plane_cookie(struct vb2_buffer *vb, unsigned int plane_no); + +void vb2_buffer_done(struct vb2_buffer *vb, enum vb2_buffer_state state); +int vb2_wait_for_all_buffers(struct vb2_queue *q); + +int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b); +int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req); + +int vb2_queue_init(struct vb2_queue *q); + +void vb2_queue_release(struct vb2_queue *q); + +int vb2_qbuf(struct vb2_queue *q, struct v4l2_buffer *b); +int vb2_dqbuf(struct vb2_queue *q, struct v4l2_buffer *b, bool nonblocking); + +int vb2_streamon(struct vb2_queue *q, enum v4l2_buf_type type); +int vb2_streamoff(struct vb2_queue *q, enum v4l2_buf_type type); + +int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma); +unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait); +size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count, + loff_t *ppos, int nonblock); +size_t vb2_write(struct vb2_queue *q, char __user *data, size_t count, + loff_t *ppos, int nonblock); + +/** + * vb2_is_streaming() - return streaming status of the queue + * @q: videobuf queue + */ +static inline bool vb2_is_streaming(struct vb2_queue *q) +{ + return q->streaming; +} + +/** + * vb2_is_busy() - return busy status of the queue + * @q: videobuf queue + * + * This function checks if queue has any buffers allocated. + */ +static inline bool vb2_is_busy(struct vb2_queue *q) +{ + return (q->num_buffers > 0); +} + +/** + * vb2_get_drv_priv() - return driver private data associated with the queue + * @q: videobuf queue + */ +static inline void *vb2_get_drv_priv(struct vb2_queue *q) +{ + return q->drv_priv; +} + +/** + * vb2_set_plane_payload() - set bytesused for the plane plane_no + * @vb: buffer for which plane payload should be set + * @plane_no: plane number for which payload should be set + * @size: payload in bytes + */ +static inline void vb2_set_plane_payload(struct vb2_buffer *vb, + unsigned int plane_no, unsigned long size) +{ + if (plane_no < vb->num_planes) + vb->v4l2_planes[plane_no].bytesused = size; +} + +/** + * vb2_get_plane_payload() - set bytesused for the plane plane_no + * @vb: buffer for which plane payload should be set + * @plane_no: plane number for which payload should be set + * @size: payload in bytes + */ +static inline unsigned long vb2_get_plane_payload(struct vb2_buffer *vb, + unsigned int plane_no) +{ + if (plane_no < vb->num_planes) + return vb->v4l2_planes[plane_no].bytesused; + return 0; +} + +/** + * vb2_plane_size() - return plane size in bytes + * @vb: buffer for which plane size should be returned + * @plane_no: plane number for which size should be returned + */ +static inline unsigned long +vb2_plane_size(struct vb2_buffer *vb, unsigned int plane_no) +{ + if (plane_no < vb->num_planes) + return vb->v4l2_planes[plane_no].length; + return 0; +} + +#endif /* _MEDIA_VIDEOBUF2_CORE_H */ diff --git a/include/media/videobuf2-dma-contig.h b/include/media/videobuf2-dma-contig.h new file mode 100644 index 000000000000..fb7ca849d993 --- /dev/null +++ b/include/media/videobuf2-dma-contig.h @@ -0,0 +1,29 @@ +/* + * videobuf2-dma-coherent.h - DMA coherent memory allocator for videobuf2 + * + * Copyright (C) 2010 Samsung Electronics + * + * Author: Pawel Osciak <p.osciak@samsung.com> + * + * 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. + */ + +#ifndef _MEDIA_VIDEOBUF2_DMA_COHERENT_H +#define _MEDIA_VIDEOBUF2_DMA_COHERENT_H + +#include <media/videobuf2-core.h> + +static inline unsigned long vb2_dma_contig_plane_paddr( + struct vb2_buffer *vb, unsigned int plane_no) +{ + return (unsigned long)vb2_plane_cookie(vb, plane_no); +} + +void *vb2_dma_contig_init_ctx(struct device *dev); +void vb2_dma_contig_cleanup_ctx(void *alloc_ctx); + +extern const struct vb2_mem_ops vb2_dma_contig_memops; + +#endif diff --git a/include/media/videobuf2-dma-sg.h b/include/media/videobuf2-dma-sg.h new file mode 100644 index 000000000000..0038526b8ef7 --- /dev/null +++ b/include/media/videobuf2-dma-sg.h @@ -0,0 +1,32 @@ +/* + * videobuf2-dma-sg.h - DMA scatter/gather memory allocator for videobuf2 + * + * Copyright (C) 2010 Samsung Electronics + * + * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com> + * + * 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. + */ + +#ifndef _MEDIA_VIDEOBUF2_DMA_SG_H +#define _MEDIA_VIDEOBUF2_DMA_SG_H + +#include <media/videobuf2-core.h> + +struct vb2_dma_sg_desc { + unsigned long size; + unsigned int num_pages; + struct scatterlist *sglist; +}; + +static inline struct vb2_dma_sg_desc *vb2_dma_sg_plane_desc( + struct vb2_buffer *vb, unsigned int plane_no) +{ + return (struct vb2_dma_sg_desc *)vb2_plane_cookie(vb, plane_no); +} + +extern const struct vb2_mem_ops vb2_dma_sg_memops; + +#endif diff --git a/include/media/videobuf2-memops.h b/include/media/videobuf2-memops.h new file mode 100644 index 000000000000..fee17033a728 --- /dev/null +++ b/include/media/videobuf2-memops.h @@ -0,0 +1,45 @@ +/* + * videobuf2-memops.h - generic memory handling routines for videobuf2 + * + * Copyright (C) 2010 Samsung Electronics + * + * Author: Pawel Osciak <p.osciak@samsung.com> + * Marek Szyprowski <m.szyprowski@samsung.com> + * + * 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. + */ + +#ifndef _MEDIA_VIDEOBUF2_MEMOPS_H +#define _MEDIA_VIDEOBUF2_MEMOPS_H + +#include <media/videobuf2-core.h> + +/** + * vb2_vmarea_handler - common vma refcount tracking handler + * @refcount: pointer to refcount entry in the buffer + * @put: callback to function that decreases buffer refcount + * @arg: argument for @put callback + */ +struct vb2_vmarea_handler { + atomic_t *refcount; + void (*put)(void *arg); + void *arg; +}; + +extern const struct vm_operations_struct vb2_common_vm_ops; + +int vb2_get_contig_userptr(unsigned long vaddr, unsigned long size, + struct vm_area_struct **res_vma, dma_addr_t *res_pa); + +int vb2_mmap_pfn_range(struct vm_area_struct *vma, unsigned long paddr, + unsigned long size, + const struct vm_operations_struct *vm_ops, + void *priv); + +struct vm_area_struct *vb2_get_vma(struct vm_area_struct *vma); +void vb2_put_vma(struct vm_area_struct *vma); + + +#endif diff --git a/include/media/videobuf2-vmalloc.h b/include/media/videobuf2-vmalloc.h new file mode 100644 index 000000000000..a76b8afaa31e --- /dev/null +++ b/include/media/videobuf2-vmalloc.h @@ -0,0 +1,20 @@ +/* + * videobuf2-vmalloc.h - vmalloc memory allocator for videobuf2 + * + * Copyright (C) 2010 Samsung Electronics + * + * Author: Pawel Osciak <p.osciak@samsung.com> + * + * 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. + */ + +#ifndef _MEDIA_VIDEOBUF2_VMALLOC_H +#define _MEDIA_VIDEOBUF2_VMALLOC_H + +#include <media/videobuf2-core.h> + +extern const struct vb2_mem_ops vb2_vmalloc_memops; + +#endif |