drivers/staging/dt3155v4l/dt3155v4l.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2010 by Marin Mitov                                *
   3  *   mitov@issp.bas.bg                                                     *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 /*    DT3155 header file    */
  22 #ifndef _DT3155_H_
  23 #define _DT3155_H_
  24
  25 #ifdef __KERNEL__
  26
  27 #include <linux/pci.h>
  28 #include <linux/interrupt.h>
  29
  30 #define DT3155_NAME "dt3155"
  31 #define DT3155_VER_MAJ 1
  32 #define DT3155_VER_MIN 1
  33 #define DT3155_VER_EXT 0
  34 #define DT3155_VERSION  __stringify(DT3155_VER_MAJ)     "."             \
  35                         __stringify(DT3155_VER_MIN)     "."             \
  36                         __stringify(DT3155_VER_EXT)
  37
  38 /* DT3155 Base Register offsets (memory mapped) */
  39 #define EVEN_DMA_START   0x00
  40 #define ODD_DMA_START    0x0C
  41 #define EVEN_DMA_STRIDE  0x18
  42 #define ODD_DMA_STRIDE   0x24
  43 #define EVEN_PIXEL_FMT   0x30
  44 #define ODD_PIXEL_FMT    0x34
  45 #define FIFO_TRIGER      0x38
  46 #define XFER_MODE        0x3C
  47 #define CSR1             0x40
  48 #define RETRY_WAIT_CNT   0x44
  49 #define INT_CSR          0x48
  50 #define EVEN_FLD_MASK    0x4C
  51 #define ODD_FLD_MASK     0x50
  52 #define MASK_LENGTH      0x54
  53 #define FIFO_FLAG_CNT    0x58
  54 #define IIC_CLK_DUR      0x5C
  55 #define IIC_CSR1         0x60
  56 #define IIC_CSR2         0x64
  57
  58 /*  DT3155 Internal Registers indexes (i2c/IIC mapped) */
  59 #define CSR2         0x10
  60 #define EVEN_CSR     0x11
  61 #define ODD_CSR      0x12
  62 #define CONFIG       0x13
  63 #define DT_ID        0x1F
  64 #define X_CLIP_START 0x20
  65 #define Y_CLIP_START 0x22
  66 #define X_CLIP_END   0x24
  67 #define Y_CLIP_END   0x26
  68 #define AD_ADDR      0x30
  69 #define AD_LUT       0x31
  70 #define AD_CMD       0x32
  71 #define DIG_OUT      0x40
  72 #define PM_LUT_ADDR  0x50
  73 #define PM_LUT_DATA  0x51
  74
  75 /* AD command register values  */
  76 #define AD_CMD_REG   0x00
  77 #define AD_POS_REF   0x01
  78 #define AD_NEG_REF   0x02
  79
  80 /* CSR1 bit masks */
  81 #define CRPT_DIS       0x00004000
  82 #define FLD_CRPT_ODD   0x00000200
  83 #define FLD_CRPT_EVEN  0x00000100
  84 #define FIFO_EN        0x00000080
  85 #define SRST           0x00000040
  86 #define FLD_DN_ODD     0x00000020
  87 #define FLD_DN_EVEN    0x00000010
  88 /*   These should not be used.
  89  *   Use CAP_CONT_ODD/EVEN instead
  90 #define CAP_SNGL_ODD   0x00000008
  91 #define CAP_SNGL_EVEN  0x00000004
  92 */
  93 #define CAP_CONT_ODD   0x00000002
  94 #define CAP_CONT_EVEN  0x00000001
  95
  96 /*  INT_CSR bit masks */
  97 #define FLD_START_EN     0x00000400
  98 #define FLD_END_ODD_EN   0x00000200
  99 #define FLD_END_EVEN_EN  0x00000100
 100 #define FLD_START        0x00000004
 101 #define FLD_END_ODD      0x00000002
 102 #define FLD_END_EVEN     0x00000001
 103
 104 /* IIC_CSR1 bit masks */
 105 #define DIRECT_ABORT     0x00000200
 106
 107 /* IIC_CSR2 bit masks */
 108 #define NEW_CYCLE   0x01000000
 109 #define DIR_RD      0x00010000
 110 #define IIC_READ    0x01010000
 111 #define IIC_WRITE   0x01000000
 112
 113 /* CSR2 bit masks */
 114 #define DISP_PASS     0x40
 115 #define BUSY_ODD      0x20
 116 #define BUSY_EVEN     0x10
 117 #define SYNC_PRESENT  0x08
 118 #define VT_50HZ       0x04
 119 #define SYNC_SNTL     0x02
 120 #define CHROM_FILT    0x01
 121 #define VT_60HZ       0x00
 122
 123 /* CSR_EVEN/ODD bit masks */
 124 #define CSR_ERROR       0x04
 125 #define CSR_SNGL        0x02
 126 #define CSR_DONE        0x01
 127
 128 /* CONFIG bit masks */
 129 #define PM_LUT_PGM     0x80
 130 #define PM_LUT_SEL     0x40
 131 #define CLIP_EN        0x20
 132 #define HSCALE_EN      0x10
 133 #define EXT_TRIG_UP    0x0C
 134 #define EXT_TRIG_DOWN  0x04
 135 #define ACQ_MODE_NEXT  0x02
 136 #define ACQ_MODE_ODD   0x01
 137 #define ACQ_MODE_EVEN  0x00
 138
 139 /* AD_CMD bit masks */
 140 #define VIDEO_CNL_1  0x00
 141 #define VIDEO_CNL_2  0x40
 142 #define VIDEO_CNL_3  0x80
 143 #define VIDEO_CNL_4  0xC0
 144 #define SYNC_CNL_1   0x00
 145 #define SYNC_CNL_2   0x10
 146 #define SYNC_CNL_3   0x20
 147 #define SYNC_CNL_4   0x30
 148 #define SYNC_LVL_1   0x00
 149 #define SYNC_LVL_2   0x04
 150 #define SYNC_LVL_3   0x08
 151 #define SYNC_LVL_4   0x0C
 152
 153 /* DT3155 identificator */
 154 #define DT3155_ID   0x20
 155
 156 #ifdef CONFIG_DT3155_CCIR
 157 #define DMA_STRIDE 768
 158 #else
 159 #define DMA_STRIDE 640
 160 #endif
 161
 162 /**
 163  * struct dt3155_stats - statistics structure
 164  *
 165  * @free_bufs_empty:    no free image buffers
 166  * @corrupted_fields:   corrupted fields
 167  * @dma_map_failed:     dma mapping failed
 168  * @start_before_end:   new started before old ended
 169  */
 170 struct dt3155_stats {
 171         int free_bufs_empty;
 172         int corrupted_fields;
 173         int dma_map_failed;
 174         int start_before_end;
 175 };
 176
 177 /*    per board private data structure   */
 178 /**
 179  * struct dt3155_priv - private data structure
 180  *
 181  * @vdev:               pointer to video_device structure
 182  * @acq_fp              pointer to filp that starts acquisition
 183  * @streaming           streaming is negotiated
 184  * @pdev:               pointer to pci_dev structure
 185  * @vidq                pointer to videobuf_queue structure
 186  * @curr_buf:           pointer to curren buffer
 187  * @thread              pointer to worker thraed
 188  * @irq_handler:        irq handler for the driver
 189  * @qt_ops              local copy of dma-contig qtype_ops
 190  * @dmaq                queue for dma buffers
 191  * @do_dma              wait queue of the kernel thread
 192  * @mux:                mutex to protect the instance
 193  * @lock                spinlock for videobuf queues
 194  * @field_count         fields counter
 195  * @stats:              statistics structure
 196  * @users               open count
 197  * @regs:               local copy of mmio base register
 198  * @csr2:               local copy of csr2 register
 199  * @config:             local copy of config register
 200  */
 201 struct dt3155_priv {
 202         struct video_device *vdev;
 203         struct file *acq_fp;
 204         int streaming;
 205         struct pci_dev *pdev;
 206         struct videobuf_queue *vidq;
 207         struct videobuf_buffer *curr_buf;
 208         struct task_struct *thread;
 209         irq_handler_t irq_handler;
 210         struct videobuf_qtype_ops qt_ops;
 211         struct list_head dmaq;
 212         wait_queue_head_t do_dma;
 213         struct mutex mux;
 214         spinlock_t lock;
 215         unsigned int field_count;
 216         struct dt3155_stats stats;
 217         void *regs;
 218         int users;
 219         u8 csr2, config;
 220 };
 221
 222 #endif /*  __KERNEL__  */
 223
 224 #endif /*  _DT3155_H_  */