/* * zoran - Iomega Buz driver * * Copyright (C) 1999 Rainer Johanni * * based on * * zoran.0.0.3 Copyright (C) 1998 Dave Perks * * and * * bttv - Bt848 frame grabber driver * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) * & Marcus Metzler (mocm@thp.uni-koeln.de) * * 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _BUZ_H_ #define _BUZ_H_ struct zoran_requestbuffers { unsigned long count; /* Number of buffers for MJPEG grabbing */ unsigned long size; /* Size PER BUFFER in bytes */ }; struct zoran_sync { unsigned long frame; /* number of buffer that has been free'd */ unsigned long length; /* number of code bytes in buffer (capture only) */ unsigned long seq; /* frame sequence number */ struct timeval timestamp; /* timestamp */ }; struct zoran_status { int input; /* Input channel, has to be set prior to BUZIOC_G_STATUS */ int signal; /* Returned: 1 if valid video signal detected */ int norm; /* Returned: VIDEO_MODE_PAL or VIDEO_MODE_NTSC */ int color; /* Returned: 1 if color signal detected */ }; struct zoran_params { /* The following parameters can only be queried */ int major_version; /* Major version number of driver */ int minor_version; /* Minor version number of driver */ /* Main control parameters */ int input; /* Input channel: 0 = Composite, 1 = S-VHS */ int norm; /* Norm: VIDEO_MODE_PAL or VIDEO_MODE_NTSC */ int decimation; /* decimation of captured video, * enlargement of video played back. * Valid values are 1, 2, 4 or 0. * 0 is a special value where the user * has full control over video scaling */ /* The following parameters only have to be set if decimation==0, * for other values of decimation they provide the data how the image is captured */ int HorDcm; /* Horizontal decimation: 1, 2 or 4 */ int VerDcm; /* Vertical decimation: 1 or 2 */ int TmpDcm; /* Temporal decimation: 1 or 2, * if TmpDcm==2 in capture every second frame is dropped, * in playback every frame is played twice */ int field_per_buff; /* Number of fields per buffer: 1 or 2 */ int img_x; /* start of image in x direction */ int img_y; /* start of image in y direction */ int img_width; /* image width BEFORE decimation, * must be a multiple of HorDcm*16 */ int img_height; /* image height BEFORE decimation, * must be a multiple of VerDcm*8 */ /* --- End of parameters for decimation==0 only --- */ /* JPEG control parameters */ int quality; /* Measure for quality of compressed images. * Scales linearly with the size of the compressed images. * Must be beetween 0 and 100, 100 is a compression * ratio of 1:4 */ int odd_even; /* Which field should come first ??? */ int APPn; /* Number of APP segment to be written, must be 0..15 */ int APP_len; /* Length of data in JPEG APPn segment */ char APP_data[60]; /* Data in the JPEG APPn segment. */ int COM_len; /* Length of data in JPEG COM segment */ char COM_data[60]; /* Data in JPEG COM segment */ unsigned long jpeg_markers; /* Which markers should go into the JPEG output. * Unless you exactly know what you do, leave them untouched. * Inluding less markers will make the resulting code * smaller, but there will be fewer aplications * which can read it. * The presence of the APP and COM marker is * influenced by APP0_len and COM_len ONLY! */ #define JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */ #define JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */ #define JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */ #define JPEG_MARKER_COM (1<<6) /* Comment segment */ #define JPEG_MARKER_APP (1<<7) /* App segment, driver will allways use APP0 */ int VFIFO_FB; /* Flag for enabling Video Fifo Feedback. * If this flag is turned on and JPEG decompressing * is going to the screen, the decompress process * is stopped every time the Video Fifo is full. * This enables a smooth decompress to the screen * but the video output signal will get scrambled */ /* Misc */ char reserved[312]; /* Makes 512 bytes for this structure */ }; /* Private IOCTL to set up for displaying MJPEG */ #define BUZIOC_G_PARAMS _IOR ('v', BASE_VIDIOCPRIVATE+0, struct zoran_params) #define BUZIOC_S_PARAMS _IOWR('v', BASE_VIDIOCPRIVATE+1, struct zoran_params) #define BUZIOC_REQBUFS _IOWR('v', BASE_VIDIOCPRIVATE+2, struct zoran_requestbuffers) #define BUZIOC_QBUF_CAPT _IOW ('v', BASE_VIDIOCPRIVATE+3, int) #define BUZIOC_QBUF_PLAY _IOW ('v', BASE_VIDIOCPRIVATE+4, int) #define BUZIOC_SYNC _IOR ('v', BASE_VIDIOCPRIVATE+5, struct zoran_sync) #define BUZIOC_G_STATUS _IOWR('v', BASE_VIDIOCPRIVATE+6, struct zoran_status) #ifdef __KERNEL__ #define MAJOR_VERSION 0 /* driver major version */ #define MINOR_VERSION 9 /* driver minor version */ #define RELEASE_VERSION 5 /* release version */ #define ZORAN_NAME "ZORAN" /* name of the device */ #define ZR_DEVNAME(zr) ((zr)->name) #define BUZ_MAX_WIDTH (zr->timing->Wa) #define BUZ_MAX_HEIGHT (zr->timing->Ha) #define BUZ_MIN_WIDTH 32 /* never display less than 32 pixels */ #define BUZ_MIN_HEIGHT 24 /* never display less than 24 rows */ #define BUZ_NUM_STAT_COM 4 #define BUZ_MASK_STAT_COM 3 #define BUZ_MAX_FRAME 256 /* Must be a power of 2 */ #define BUZ_MASK_FRAME 255 /* Must be BUZ_MAX_FRAME-1 */ #define BUZ_MAX_INPUT 8 #if VIDEO_MAX_FRAME <= 32 # define V4L_MAX_FRAME 32 #elif VIDEO_MAX_FRAME <= 64 # define V4L_MAX_FRAME 64 #else # error "Too many video frame buffers to handle" #endif #define V4L_MASK_FRAME (V4L_MAX_FRAME - 1) #define MAX_KMALLOC_MEM (128*1024) #include "zr36057.h" enum card_type { UNKNOWN = -1, /* Pinnacle/Miro */ DC10_old, /* DC30 like */ DC10_new, /* DC10plus like */ DC10plus, DC30, DC30plus, /* Linux Media Labs */ LML33, LML33R10, /* Iomega */ BUZ, /* total number of cards */ NUM_CARDS }; enum zoran_codec_mode { BUZ_MODE_IDLE, /* nothing going on */ BUZ_MODE_MOTION_COMPRESS, /* grabbing frames */ BUZ_MODE_MOTION_DECOMPRESS, /* playing frames */ BUZ_MODE_STILL_COMPRESS, /* still frame conversion */ BUZ_MODE_STILL_DECOMPRESS /* still frame conversion */ }; enum zoran_buffer_state { BUZ_STATE_USER, /* buffer is owned by application */ BUZ_STATE_PEND, /* buffer is queued in pend[] ready to feed to I/O */ BUZ_STATE_DMA, /* buffer is queued in dma[] for I/O */ BUZ_STATE_DONE /* buffer is ready to return to application */ }; enum zoran_map_mode { ZORAN_MAP_MODE_RAW, ZORAN_MAP_MODE_JPG_REC, #define ZORAN_MAP_MODE_JPG ZORAN_MAP_MODE_JPG_REC ZORAN_MAP_MODE_JPG_PLAY, }; enum gpio_type { GPIO_JPEG_SLEEP = 0, GPIO_JPEG_RESET, GPIO_JPEG_FRAME, GPIO_VID_DIR, GPIO_VID_EN, GPIO_VID_RESET, GPIO_CLK_SEL1, GPIO_CLK_SEL2, GPIO_MAX, }; enum gpcs_type { GPCS_JPEG_RESET = 0, GPCS_JPEG_START, GPCS_MAX, }; struct zoran_format { char *name; int palette; __u32 fourcc; int colorspace; int depth; __u32 flags; }; /* flags */ #define ZORAN_FORMAT_COMPRESSED 1<<0 #define ZORAN_FORMAT_OVERLAY 1<<1 #define ZORAN_FORMAT_CAPTURE 1<<2 #define ZORAN_FORMAT_PLAYBACK 1<<3 /* overlay-settings */ struct zoran_overlay_settings { int is_set; int x, y, width, height; /* position */ int clipcount; /* position and number of clips */ const struct zoran_format *format; /* overlay format */ }; /* v4l-capture settings */ struct zoran_v4l_settings { int width, height, bytesperline; /* capture size */ const struct zoran_format *format; /* capture format */ }; /* whoops, this one is undeclared if !v4l2 */ #ifndef HAVE_V4L2 struct v4l2_jpegcompression { int quality; int APPn; int APP_len; char APP_data[60]; int COM_len; char COM_data[60]; __u32 jpeg_markers; __u8 reserved[116]; }; #endif /* jpg-capture/-playback settings */ struct zoran_jpg_settings { int decimation; /* this bit is used to set everything to default */ int HorDcm, VerDcm, TmpDcm; /* capture decimation settings (TmpDcm=1 means both fields) */ int field_per_buff, odd_even; /* field-settings (odd_even=1 (+TmpDcm=1) means top-field-first) */ int img_x, img_y, img_width, img_height; /* crop settings (subframe capture) */ struct v4l2_jpegcompression jpg_comp; /* JPEG-specific capture settings */ }; struct zoran_mapping { struct file *file; int count; }; struct zoran_jpg_buffer { struct zoran_mapping *map; u32 *frag_tab; /* addresses of frag table */ u32 frag_tab_bus; /* same value cached to save time in ISR */ enum zoran_buffer_state state; /* non-zero if corresponding buffer is in use in grab queue */ struct zoran_sync bs; /* DONE: info to return to application */ }; struct zoran_v4l_buffer { struct zoran_mapping *map; char *fbuffer; /* virtual address of frame buffer */ unsigned long fbuffer_phys; /* physical address of frame buffer */ unsigned long fbuffer_bus; /* bus address of frame buffer */ enum zoran_buffer_state state; /* state: unused/pending/done */ struct zoran_sync bs; /* DONE: info to return to application */ }; enum zoran_lock_activity { ZORAN_FREE, /* free for use */ ZORAN_ACTIVE, /* active but unlocked */ ZORAN_LOCKED, /* locked */ }; /* buffer collections */ struct zoran_jpg_struct { enum zoran_lock_activity active; /* feature currently in use? */ struct zoran_jpg_buffer buffer[BUZ_MAX_FRAME]; /* buffers */ int num_buffers, buffer_size; u8 allocated; /* Flag if buffers are allocated */ u8 ready_to_be_freed; /* hack - see zoran_driver.c */ u8 need_contiguous; /* Flag if contiguous buffers are needed */ }; struct zoran_v4l_struct { enum zoran_lock_activity active; /* feature currently in use? */ struct zoran_v4l_buffer buffer[VIDEO_MAX_FRAME]; /* buffers */ int num_buffers, buffer_size; u8 allocated; /* Flag if buffers are allocated */ u8 ready_to_be_freed; /* hack - see zoran_driver.c */ }; struct zoran; /* zoran_fh contains per-open() settings */ struct zoran_fh { struct zoran *zr; enum zoran_map_mode map_mode; /* Flag which bufferset will map by next mmap() */ struct zoran_overlay_settings overlay_settings; u32 *overlay_mask; /* overlay mask */ enum zoran_lock_activity overlay_active; /* feature currently in use? */ struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */ struct zoran_v4l_struct v4l_buffers; /* V4L buffers' info */ struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */ struct zoran_jpg_struct jpg_buffers; /* MJPEG buffers' info */ }; struct card_info { enum card_type type; char name[32]; u16 i2c_decoder, i2c_encoder; /* I2C types */ u16 video_vfe, video_codec; /* videocodec types */ u16 audio_chip; /* audio type */ u16 vendor_id, device_id; /* subsystem vendor/device ID */ int inputs; /* number of video inputs */ struct input { int muxsel; char name[32]; } input[BUZ_MAX_INPUT]; int norms; struct tvnorm *tvn[3]; /* supported TV norms */ u32 jpeg_int; /* JPEG interrupt */ u32 vsync_int; /* VSYNC interrupt */ s8 gpio[GPIO_MAX]; u8 gpcs[GPCS_MAX]; struct vfe_polarity vfe_pol; u8 gpio_pol[GPIO_MAX]; /* is the /GWS line conected? */ u8 gws_not_connected; void (*init) (struct zoran * zr); }; struct zoran { struct video_device *video_dev; struct i2c_adapter i2c_adapter; /* */ struct i2c_algo_bit_data i2c_algo; /* */ u32 i2cbr; struct i2c_client *decoder; /* video decoder i2c client */ struct i2c_client *encoder; /* video encoder i2c client */ struct videocodec *codec; /* video codec */ struct videocodec *vfe; /* video front end */ struct mutex resource_lock; /* prevent evil stuff */ u8 initialized; /* flag if zoran has been correctly initalized */ int user; /* number of current users */ struct card_info card; struct tvnorm *timing; unsigned short id; /* number of this device */ char name[32]; /* name of this device */ struct pci_dev *pci_dev; /* PCI device */ unsigned char revision; /* revision of zr36057 */ unsigned int zr36057_adr; /* bus address of IO mem returned by PCI BIOS */ unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */ spinlock_t spinlock; /* Spinlock */ /* Video for Linux parameters */ int input, norm; /* card's norm and input - norm=VIDEO_MODE_* */ int hue, saturation, contrast, brightness; /* Current picture params */ struct video_buffer buffer; /* Current buffer params */ struct zoran_overlay_settings overlay_settings; u32 *overlay_mask; /* overlay mask */ enum zoran_lock_activity overlay_active; /* feature currently in use? */ wait_queue_head_t v4l_capq; int v4l_overlay_active; /* Overlay grab is activated */ int v4l_memgrab_active; /* Memory grab is activated */ int v4l_grab_frame; /* Frame number being currently grabbed */ #define NO_GRAB_ACTIVE (-1) unsigned long v4l_grab_seq; /* Number of frames grabbed */ struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */ /* V4L grab queue of frames pending */ unsigned long v4l_pend_head; unsigned long v4l_pend_tail; unsigned long v4l_sync_tail; int v4l_pend[V4L_MAX_FRAME]; struct zoran_v4l_struct v4l_buffers; /* V4L buffers' info */ /* Buz MJPEG parameters */ enum zoran_codec_mode codec_mode; /* status of codec */ struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */ wait_queue_head_t jpg_capq; /* wait here for grab to finish */ /* grab queue counts/indices, mask with BUZ_MASK_STAT_COM before using as index */ /* (dma_head - dma_tail) is number active in DMA, must be <= BUZ_NUM_STAT_COM */ /* (value & BUZ_MASK_STAT_COM) corresponds to index in stat_com table */ unsigned long jpg_que_head; /* Index where to put next buffer which is queued */ unsigned long jpg_dma_head; /* Index of next buffer which goes into stat_com */ unsigned long jpg_dma_tail; /* Index of last buffer in stat_com */ unsigned long jpg_que_tail; /* Index of last buffer in queue */ unsigned long jpg_seq_num; /* count of frames since grab/play started */ unsigned long jpg_err_seq; /* last seq_num before error */ unsigned long jpg_err_shift; unsigned long jpg_queued_num; /* count of frames queued since grab/play started */ /* zr36057's code buffer table */ u32 *stat_com; /* stat_com[i] is indexed by dma_head/tail & BUZ_MASK_STAT_COM */ /* (value & BUZ_MASK_FRAME) corresponds to index in pend[] queue */ int jpg_pend[BUZ_MAX_FRAME]; /* array indexed by frame number */ struct zoran_jpg_struct jpg_buffers; /* MJPEG buffers' info */ /* Additional stuff for testing */ #ifdef CONFIG_PROC_FS struct proc_dir_entry *zoran_proc; #else void *zoran_proc; #endif int testing; int jpeg_error; int intr_counter_GIRQ1; int intr_counter_GIRQ0; int intr_counter_CodRepIRQ; int intr_counter_JPEGRepIRQ; int field_counter; int IRQ1_in; int IRQ1_out; int JPEG_in; int JPEG_out; int JPEG_0; int JPEG_1; int END_event_missed; int JPEG_missed; int JPEG_error; int num_errors; int JPEG_max_missed; int JPEG_min_missed; u32 last_isr; unsigned long frame_num; wait_queue_head_t test_q; }; /*The following should be done in more portable way. It depends on define of _ALPHA_BUZ in the Makefile.*/ #ifdef _ALPHA_BUZ #define btwrite(dat,adr) writel((dat), zr->zr36057_adr+(adr)) #define btread(adr) readl(zr->zr36057_adr+(adr)) #else #define btwrite(dat,adr) writel((dat), zr->zr36057_mem+(adr)) #define btread(adr) readl(zr->zr36057_mem+(adr)) #endif #define btand(dat,adr) btwrite((dat) & btread(adr), adr) #define btor(dat,adr) btwrite((dat) | btread(adr), adr) #define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr) #endif /* __kernel__ */ #endif