flight/pios/inc/pios_video.h

   1 /**
   2  ******************************************************************************
   3  * @addtogroup PIOS PIOS Core hardware abstraction layer
   4  * @{
   5  * @addtogroup PIOS_VIDEO Code for OSD video generator
   6  * @brief OSD generator, Parts from CL-OSD and SUPEROSD project
   7  * @{
   8  *
   9  * @file       pios_video.h
  10  * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
  11  * @brief      OSD generator, Parts from CL-OSD and SUPEROSD projects
  12  * @see        The GNU Public License (GPL) Version 3
  13  *
  14  ******************************************************************************
  15  */
  16 /*
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation; either version 3 of the License, or
  20  * (at your option) any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful, but
  23  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  24  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  25  * for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License along
  28  * with this program; if not, write to the Free Software Foundation, Inc.,
  29  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  30  */
  31
  32 #ifndef PIOS_VIDEO_H
  33 #define PIOS_VIDEO_H
  34
  35 #include <pios_stm32.h>
  36 #include <pios_spi_priv.h>
  37
  38 struct pios_video_cfg {
  39     const struct pios_spi_cfg  mask;
  40     const struct pios_spi_cfg  level;
  41
  42     const struct pios_exti_cfg *hsync;
  43     const struct pios_exti_cfg *vsync;
  44
  45     struct pios_tim_channel    pixel_timer;
  46     struct pios_tim_channel    hsync_capture;
  47
  48     TIM_OCInitTypeDef tim_oc_init;
  49 };
  50
  51 // Time vars
  52 typedef struct {
  53     uint8_t sec;
  54     uint8_t min;
  55     uint8_t hour;
  56 } TTime;
  57
  58 extern TTime timex;
  59
  60 extern void PIOS_Video_Init(const struct pios_video_cfg *cfg);
  61 uint16_t PIOS_Video_GetOSDLines(void);
  62 extern bool PIOS_Hsync_ISR();
  63 extern bool PIOS_Vsync_ISR();
  64
  65 // First OSD line
  66 #define GRAPHICS_LINE      25
  67
  68 // top/left deadband
  69 #define GRAPHICS_HDEADBAND 80
  70 #define GRAPHICS_VDEADBAND 0
  71
  72 #define PAL
  73
  74 // Real OSD size
  75 #ifdef PAL
  76 // #define GRAPHICS_WIDTH_REAL (352+GRAPHICS_HDEADBAND)
  77 #define GRAPHICS_WIDTH_REAL   416
  78  #define GRAPHICS_HEIGHT_REAL (270 + GRAPHICS_VDEADBAND)
  79 #else
  80  #define GRAPHICS_WIDTH_REAL  (312 + GRAPHICS_HDEADBAND)
  81  #define GRAPHICS_HEIGHT_REAL (225 + GRAPHICS_VDEADBAND)
  82 #endif
  83
  84 // draw area
  85 #define GRAPHICS_TOP          0
  86 #define GRAPHICS_LEFT         0
  87 #define GRAPHICS_BOTTOM       (GRAPHICS_HEIGHT_REAL - GRAPHICS_VDEADBAND - 1)
  88 #define GRAPHICS_RIGHT        (GRAPHICS_WIDTH_REAL - GRAPHICS_HDEADBAND - 1)
  89
  90
  91 #define GRAPHICS_WIDTH        (GRAPHICS_WIDTH_REAL / 8)
  92 #define GRAPHICS_HEIGHT       GRAPHICS_HEIGHT_REAL
  93
  94 // dma lenght
  95 #define BUFFER_LINE_LENGTH    (GRAPHICS_WIDTH)  // Yes, in bytes.
  96
  97 // line types
  98 #define LINE_TYPE_UNKNOWN     0
  99 #define LINE_TYPE_GRAPHICS    2
 100
 101 // Macro to swap buffers given a temporary pointer.
 102 #define SWAP_BUFFS(tmp, a, b) { tmp = a; a = b; b = tmp; }
 103
 104 #endif /* PIOS_VIDEO_H */