/***************************************************************************
* Copyright (C) 2006-2010 by Marin Mitov *
* mitov@issp.bas.bg *
* *
* 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. *
***************************************************************************/
/* DT3155 header file */
#ifndef _DT3155_H_
#define _DT3155_H_
#ifdef __KERNEL__
#include <linux/pci.h>
#include <linux/interrupt.h>
#define DT3155_NAME "dt3155"
#define DT3155_VER_MAJ 1
#define DT3155_VER_MIN 1
#define DT3155_VER_EXT 0
#define DT3155_VERSION __stringify(DT3155_VER_MAJ) "." \
__stringify(DT3155_VER_MIN) "." \
__stringify(DT3155_VER_EXT)
/* DT3155 Base Register offsets (memory mapped) */
#define EVEN_DMA_START 0x00
#define ODD_DMA_START 0x0C
#define EVEN_DMA_STRIDE 0x18
#define ODD_DMA_STRIDE 0x24
#define EVEN_PIXEL_FMT 0x30
#define ODD_PIXEL_FMT 0x34
#define FIFO_TRIGER 0x38
#define XFER_MODE 0x3C
#define CSR1 0x40
#define RETRY_WAIT_CNT 0x44
#define INT_CSR 0x48
#define EVEN_FLD_MASK 0x4C
#define ODD_FLD_MASK 0x50
#define MASK_LENGTH 0x54
#define FIFO_FLAG_CNT 0x58
#define IIC_CLK_DUR 0x5C
#define IIC_CSR1 0x60
#define IIC_CSR2 0x64
/* DT3155 Internal Registers indexes (i2c/IIC mapped) */
#define CSR2 0x10
#define EVEN_CSR 0x11
#define ODD_CSR 0x12
#define CONFIG 0x13
#define DT_ID 0x1F
#define X_CLIP_START 0x20
#define Y_CLIP_START 0x22
#define X_CLIP_END 0x24
#define Y_CLIP_END 0x26
#define AD_ADDR 0x30
#define AD_LUT 0x31
#define AD_CMD 0x32
#define DIG_OUT 0x40
#define PM_LUT_ADDR 0x50
#define PM_LUT_DATA 0x51
/* AD command register values */
#define AD_CMD_REG 0x00
#define AD_POS_REF 0x01
#define AD_NEG_REF 0x02
/* CSR1 bit masks */
#define CRPT_DIS 0x00004000
#define FLD_CRPT_ODD 0x00000200
#define FLD_CRPT_EVEN 0x00000100
#define FIFO_EN 0x00000080
#define SRST 0x00000040
#define FLD_DN_ODD 0x00000020
#define FLD_DN_EVEN 0x00000010
/* These should not be used.
* Use CAP_CONT_ODD/EVEN instead
#define CAP_SNGL_ODD 0x00000008
#define CAP_SNGL_EVEN 0x00000004
*/
#define CAP_CONT_ODD 0x00000002
#define CAP_CONT_EVEN 0x00000001
/* INT_CSR bit masks */
#define FLD_START_EN 0x00000400
#define FLD_END_ODD_EN 0x00000200
#define FLD_END_EVEN_EN 0x00000100
#define FLD_START 0x00000004
#define FLD_END_ODD 0x00000002
#define FLD_END_EVEN 0x00000001
/* IIC_CSR1 bit masks */
#define DIRECT_ABORT 0x00000200
/* IIC_CSR2 bit masks */
#define NEW_CYCLE 0x01000000
#define DIR_RD 0x00010000
#define IIC_READ 0x01010000
#define IIC_WRITE 0x01000000
/* CSR2 bit masks */
#define DISP_PASS 0x40
#define BUSY_ODD 0x20
#define BUSY_EVEN 0x10
#define SYNC_PRESENT 0x08
#define VT_50HZ 0x04
#define SYNC_SNTL 0x02
#define CHROM_FILT 0x01
#define VT_60HZ 0x00
/* CSR_EVEN/ODD bit masks */
#define CSR_ERROR 0x04
#define CSR_SNGL 0x02
#define CSR_DONE 0x01
/* CONFIG bit masks */
#define PM_LUT_PGM 0x80
#define PM_LUT_SEL 0x40
#define CLIP_EN 0x20
#define HSCALE_EN 0x10
#define EXT_TRIG_UP 0x0C
#define EXT_TRIG_DOWN 0x04
#define ACQ_MODE_NEXT 0x02
#define ACQ_MODE_ODD 0x01
#define ACQ_MODE_EVEN 0x00
/* AD_CMD bit masks */
#define VIDEO_CNL_1 0x00
#define VIDEO_CNL_2 0x40
#define VIDEO_CNL_3 0x80
#define VIDEO_CNL_4 0xC0
#define SYNC_CNL_1 0x00
#define SYNC_CNL_2 0x10
#define SYNC_CNL_3 0x20
#define SYNC_CNL_4 0x30
#define SYNC_LVL_1 0x00
#define SYNC_LVL_2 0x04
#define SYNC_LVL_3 0x08
#define SYNC_LVL_4 0x0C
/* DT3155 identificator */
#define DT3155_ID 0x20
#ifdef CONFIG_DT3155_CCIR
#define DMA_STRIDE 768
#else
#define DMA_STRIDE 640
#endif
/**
* struct dt3155_stats - statistics structure
*
* @free_bufs_empty: no free image buffers
* @corrupted_fields: corrupted fields
* @dma_map_failed: dma mapping failed
* @start_before_end: new started before old ended
*/
struct dt3155_stats {
int free_bufs_empty;
int corrupted_fields;
int dma_map_failed;
int start_before_end;
};
/* per board private data structure */
/**
* struct dt3155_priv - private data structure
*
* @vdev: pointer to video_device structure
* @acq_fp pointer to filp that starts acquisition
* @streaming streaming is negotiated
* @pdev: pointer to pci_dev structure
* @vidq pointer to videobuf_queue structure
* @curr_buf: pointer to curren buffer
* @thread pointer to worker thraed
* @irq_handler: irq handler for the driver
* @qt_ops local copy of dma-contig qtype_ops
* @dmaq queue for dma buffers
* @do_dma wait queue of the kernel thread
* @mux: mutex to protect the instance
* @lock spinlock for videobuf queues
* @field_count fields counter
* @stats: statistics structure
* @users open count
* @regs: local copy of mmio base register
* @csr2: local copy of csr2 register
* @config: local copy of config register
*/
struct dt3155_priv {
struct video_device *vdev;
struct file *acq_fp;
int streaming;
struct pci_dev *pdev;
struct videobuf_queue *vidq;
struct videobuf_buffer *curr_buf;
struct task_struct *thread;
irq_handler_t irq_handler;
struct videobuf_qtype_ops qt_ops;
struct list_head dmaq;
wait_queue_head_t do_dma;
struct mutex mux;
spinlock_t lock;
unsigned int field_count;
struct dt3155_stats stats;
void *regs;
int users;
u8 csr2, config;
};
#endif /* __KERNEL__ */
#endif /* _DT3155_H_ */