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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 | /* planb - PlanB frame grabber driver PlanB is used in the 7x00/8x00 series of PowerMacintosh Computers as video input DMA controller. Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) Based largely on the bttv driver by Ralph Metzler (rjkm@thp.uni-koeln.de) Additional debugging and coding by Takashi Oe (toe@unlserve.unl.edu) 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. */ /* $Id: planb.h,v 1.13 1999/05/03 19:28:56 mlan Exp $ */ #ifndef _PLANB_H_ #define _PLANB_H_ #ifdef __KERNEL__ #include <asm/dbdma.h> #include "saa7196.h" #endif /* __KERNEL__ */ #define PLANB_DEVICE_NAME "Apple PlanB Video-In" #define PLANB_REV "1.0" #ifdef __KERNEL__ //#define PLANB_GSCANLINE /* use this if apps have the notion of */ /* grab buffer scanline */ /* This should be safe for both PAL and NTSC */ #define PLANB_MAXPIXELS 768 #define PLANB_MAXLINES 576 #define PLANB_NTSC_MAXLINES 480 /* Uncomment your preferred norm ;-) */ #define PLANB_DEF_NORM VIDEO_MODE_PAL //#define PLANB_DEF_NORM VIDEO_MODE_NTSC //#define PLANB_DEF_NORM VIDEO_MODE_SECAM /* fields settings */ #define PLANB_GRAY 0x1 /* 8-bit mono? */ #define PLANB_COLOUR15 0x2 /* 16-bit mode */ #define PLANB_COLOUR32 0x4 /* 32-bit mode */ #define PLANB_CLIPMASK 0x8 /* hardware clipmasking */ /* misc. flags for PlanB DMA operation */ #define CH_SYNC 0x1 /* synchronize channels (set by ch1; cleared by ch2) */ #define FIELD_SYNC 0x2 /* used for the start of each field (0 -> 1 -> 0 for ch1; 0 -> 1 for ch2) */ #define EVEN_FIELD 0x0 /* even field is detected if unset */ #define DMA_ABORT 0x2 /* error or just out of sync if set */ #define ODD_FIELD 0x4 /* odd field is detected if set */ /* for capture operations */ #define MAX_GBUFFERS 2 /* note PLANB_MAX_FBUF must be divisible by PAGE_SIZE */ #ifdef PLANB_GSCANLINE #define PLANB_MAX_FBUF 0x240000 /* 576 * 1024 * 4 */ #define TAB_FACTOR (1) #else #define PLANB_MAX_FBUF 0x1b0000 /* 576 * 768 * 4 */ #define TAB_FACTOR (2) #endif #endif /* __KERNEL__ */ struct planb_saa_regs { unsigned char addr; unsigned char val; }; struct planb_stat_regs { unsigned int ch1_stat; unsigned int ch2_stat; unsigned char saa_stat0; unsigned char saa_stat1; }; struct planb_any_regs { unsigned int offset; unsigned int bytes; unsigned char data[128]; }; /* planb private ioctls */ #define PLANBIOCGSAAREGS _IOWR('v', BASE_VIDIOCPRIVATE, struct planb_saa_regs) /* Read a saa7196 reg value */ #define PLANBIOCSSAAREGS _IOW('v', BASE_VIDIOCPRIVATE + 1, struct planb_saa_regs) /* Set a saa7196 reg value */ #define PLANBIOCGSTAT _IOR('v', BASE_VIDIOCPRIVATE + 2, struct planb_stat_regs) /* Read planb status */ #define PLANB_TV_MODE 1 #define PLANB_VTR_MODE 2 #define PLANBIOCGMODE _IOR('v', BASE_VIDIOCPRIVATE + 3, int) /* Get TV/VTR mode */ #define PLANBIOCSMODE _IOW('v', BASE_VIDIOCPRIVATE + 4, int) /* Set TV/VTR mode */ #ifdef PLANB_GSCANLINE #define PLANBG_GRAB_BPL _IOR('v', BASE_VIDIOCPRIVATE + 5, int) /* # of bytes per scanline in grab buffer */ #endif /* call wake_up_interruptible() with appropriate actions */ #define PLANB_INTR_DEBUG _IOW('v', BASE_VIDIOCPRIVATE + 20, int) /* investigate which reg does what */ #define PLANB_INV_REGS _IOWR('v', BASE_VIDIOCPRIVATE + 21, struct planb_any_regs) #ifdef __KERNEL__ /* Potentially useful macros */ #define PLANB_SET(x) ((x) << 16 | (x)) #define PLANB_CLR(x) ((x) << 16) /* This represents the physical register layout */ struct planb_registers { volatile struct dbdma_regs ch1; /* 0x00: video in */ volatile unsigned int even; /* 0x40: even field setting */ volatile unsigned int odd; /* 0x44; odd field setting */ unsigned int pad1[14]; /* empty? */ volatile struct dbdma_regs ch2; /* 0x80: clipmask out */ unsigned int pad2[16]; /* 0xc0: empty? */ volatile unsigned int reg3; /* 0x100: ???? */ volatile unsigned int intr_stat; /* 0x104: irq status */ #define PLANB_CLR_IRQ 0x00 /* clear Plan B interrupt */ #define PLANB_GEN_IRQ 0x01 /* assert Plan B interrupt */ #define PLANB_FRM_IRQ 0x0100 /* end of frame */ unsigned int pad3[1]; /* empty? */ volatile unsigned int reg5; /* 0x10c: ??? */ unsigned int pad4[60]; /* empty? */ volatile unsigned char saa_addr; /* 0x200: SAA subadr */ char pad5[3]; volatile unsigned char saa_regval; /* SAA7196 write reg. val */ char pad6[3]; volatile unsigned char saa_status; /* SAA7196 status byte */ /* There is more unused stuff here */ }; struct planb_window { int x, y; ushort width, height; ushort bpp, bpl, depth, pad; ushort swidth, sheight; int norm; int interlace; u32 color_fmt; int chromakey; int mode; /* used to switch between TV/VTR modes */ }; struct planb_suspend { int overlay; int frame; struct dbdma_cmd cmd; }; struct planb { struct video_device video_dev; struct video_picture picture; /* Current picture params */ struct video_audio audio_dev; /* Current audio params */ volatile struct planb_registers *planb_base; /* virt base of planb */ struct planb_registers *planb_base_phys; /* phys base of planb */ void *priv_space; /* Org. alloc. mem for kfree */ int user; unsigned int tab_size; int maxlines; int lock; struct wait_queue *lockq; unsigned int irq; /* interrupt number */ volatile unsigned int intr_mask; int overlay; /* overlay running? */ struct planb_window win; unsigned long frame_buffer_phys; /* We need phys for DMA */ int offset; /* offset of pixel 1 */ volatile struct dbdma_cmd *ch1_cmd; /* Video In DMA cmd buffer */ volatile struct dbdma_cmd *ch2_cmd; /* Clip Out DMA cmd buffer */ volatile struct dbdma_cmd *overlay_last1; volatile struct dbdma_cmd *overlay_last2; unsigned long ch1_cmd_phys; volatile unsigned char *mask; /* Clipmask buffer */ int suspend; struct wait_queue *suspendq; struct planb_suspend suspended; int cmd_buff_inited; /* cmd buffer inited? */ int grabbing; unsigned int gcount; struct wait_queue *capq; int last_fr; int prev_last_fr; unsigned char **rawbuf; int rawbuf_size; int gbuf_idx[MAX_GBUFFERS]; volatile struct dbdma_cmd *cap_cmd[MAX_GBUFFERS]; volatile struct dbdma_cmd *last_cmd[MAX_GBUFFERS]; volatile struct dbdma_cmd *pre_cmd[MAX_GBUFFERS]; int need_pre_capture[MAX_GBUFFERS]; #define PLANB_DUMMY 40 /* # of command buf's allocated for pre-capture seq. */ int gwidth[MAX_GBUFFERS], gheight[MAX_GBUFFERS]; unsigned int gfmt[MAX_GBUFFERS]; int gnorm_switch[MAX_GBUFFERS]; volatile unsigned int *frame_stat; #define GBUFFER_UNUSED 0x00U #define GBUFFER_GRABBING 0x01U #define GBUFFER_DONE 0x02U #ifdef PLANB_GSCANLINE int gbytes_per_line; #else #define MAX_LNUM 431 /* change this if PLANB_MAXLINES or */ /* PLANB_MAXPIXELS changes */ int l_fr_addr_idx[MAX_GBUFFERS]; unsigned char *l_to_addr[MAX_GBUFFERS][MAX_LNUM]; int l_to_next_idx[MAX_GBUFFERS][MAX_LNUM]; int l_to_next_size[MAX_GBUFFERS][MAX_LNUM]; int lsize[MAX_GBUFFERS], lnum[MAX_GBUFFERS]; #endif }; #endif /* __KERNEL__ */ #endif /* _PLANB_H_ */ |