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Diffstat (limited to 'drivers/staging/dt3155/dt3155.h')
| -rw-r--r-- | drivers/staging/dt3155/dt3155.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/drivers/staging/dt3155/dt3155.h b/drivers/staging/dt3155/dt3155.h new file mode 100644 index 000000000000..1bf786364eec --- /dev/null +++ b/drivers/staging/dt3155/dt3155.h @@ -0,0 +1,171 @@ +/* + +Copyright 1996,2002,2005 Gregory D. Hager, Alfred A. Rizzi, Noah J. Cowan, + Jason Lapenta, Scott Smedley + +This file is part of the DT3155 Device Driver. + +The DT3155 Device Driver 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. + +The DT3155 Device Driver 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 the DT3155 Device Driver; if not, write to the Free +Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, +MA 02111-1307 USA + +-- Changes -- + + Date Programmer Description of changes made + ------------------------------------------------------------------- + 03-Jul-2000 JML n/a + 10-Oct-2001 SS port to 2.4 kernel. + 24-Jul-2002 SS remove unused code & added GPL licence. + 05-Aug-2005 SS port to 2.6 kernel; make CCIR mode default. + +*/ + +#ifndef _DT3155_INC +#define _DT3155_INC + +#ifdef __KERNEL__ +#include <linux/types.h> +#include <linux/time.h> /* struct timeval */ +#else +#include <sys/ioctl.h> +#include <sys/param.h> +#include <sys/time.h> +#include <unistd.h> +#endif + + +#define TRUE 1 +#define FALSE 0 + +/* Uncomment this for 50Hz CCIR */ +#define CCIR 1 + +/* Can be 1 or 2 */ +#define MAXBOARDS 1 + +#define BOARD_MAX_BUFFS 3 +#define MAXBUFFERS (BOARD_MAX_BUFFS*MAXBOARDS) + +#define PCI_PAGE_SIZE (1 << 12) + +#ifdef CCIR +#define DT3155_MAX_ROWS 576 +#define DT3155_MAX_COLS 768 +#define FORMAT50HZ TRUE +#else +#define DT3155_MAX_ROWS 480 +#define DT3155_MAX_COLS 640 +#define FORMAT50HZ FALSE +#endif + +/* Configuration structure */ +struct dt3155_config_s { + u32 acq_mode; + u32 cols, rows; + u32 continuous; +}; + + +/* hold data for each frame */ +typedef struct { + u32 addr; /* address of the buffer with the frame */ + u32 tag; /* unique number for the frame */ + struct timeval time; /* time that capture took place */ +} frame_info_t; + +/* + * Structure for interrupt and buffer handling. + * This is the setup for 1 card + */ +struct dt3155_fbuffer_s { + int nbuffers; + + frame_info_t frame_info[BOARD_MAX_BUFFS]; + + int empty_buffers[BOARD_MAX_BUFFS]; /* indexes empty frames */ + int empty_len; /* Number of empty buffers */ + /* Zero means empty */ + + int active_buf; /* Where data is currently dma'ing */ + int locked_buf; /* Buffers used by user */ + + int ready_que[BOARD_MAX_BUFFS]; + u32 ready_head; /* The most recent buffer located here */ + u32 ready_len; /* The number of ready buffers */ + + int even_happened; + int even_stopped; + + int stop_acquire; /* Flag to stop interrupts */ + u32 frame_count; /* Counter for frames acquired by this card */ +}; + + + +#define DT3155_MODE_FRAME 1 +#define DT3155_MODE_FIELD 2 + +#define DT3155_SNAP 1 +#define DT3155_ACQ 2 + +/* There is one status structure for each card. */ +typedef struct dt3155_status_s { + int fixed_mode; /* if 1, we are in fixed frame mode */ + u32 reg_addr; /* Register address for a single card */ + u32 mem_addr; /* Buffer start addr for this card */ + u32 mem_size; /* This is the amount of mem available */ + u32 irq; /* this card's irq */ + struct dt3155_config_s config; /* configuration struct */ + struct dt3155_fbuffer_s fbuffer; /* frame buffer state struct */ + u32 state; /* this card's state */ + u32 device_installed; /* Flag if installed. 1=installed */ +} dt3155_status_t; + +/* Reference to global status structure */ +extern struct dt3155_status_s dt3155_status[MAXBOARDS]; + +#define DT3155_STATE_IDLE 0x00 +#define DT3155_STATE_FRAME 0x01 +#define DT3155_STATE_FLD 0x02 +#define DT3155_STATE_STOP 0x100 +#define DT3155_STATE_ERROR 0x200 +#define DT3155_STATE_MODE 0x0ff + +#define DT3155_IOC_MAGIC '!' + +#define DT3155_SET_CONFIG _IOW(DT3155_IOC_MAGIC, 1, struct dt3155_config_s) +#define DT3155_GET_CONFIG _IOR(DT3155_IOC_MAGIC, 2, struct dt3155_status_s) +#define DT3155_STOP _IO(DT3155_IOC_MAGIC, 3) +#define DT3155_START _IO(DT3155_IOC_MAGIC, 4) +#define DT3155_FLUSH _IO(DT3155_IOC_MAGIC, 5) +#define DT3155_IOC_MAXNR 5 + +/* Error codes */ + +#define DT_ERR_NO_BUFFERS 0x10000 /* not used but it might be one day */ +#define DT_ERR_CORRUPT 0x20000 +#define DT_ERR_OVERRUN 0x30000 +#define DT_ERR_I2C_TIMEOUT 0x40000 +#define DT_ERR_MASK 0xff0000/* not used but it might be one day */ + +/* User code will probably want to declare one of these for each card */ +typedef struct dt3155_read_s { + u32 offset; + u32 frame_seq; + u32 state; + + frame_info_t frame_info; +} dt3155_read_t; + +#endif /* _DT3155_inc */ |