path: root/vidix/sis_vid.c

/**
    VIDIX driver for SiS 300 and 310/325 series chips.

    Copyright 2003 Jake Page, Sugar Media.

    Based on SiS Xv driver:
    Copyright 2002-2003 by Thomas Winischhofer, Vienna, Austria.

    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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

    2003/10/08 integrated into mplayer/vidix architecture -- Alex Beregszaszi
**/

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <unistd.h>

#include "vidix.h"
#include "vidixlib.h"
#include "fourcc.h"
#include "dha.h"
#include "pci_ids.h"
#include "pci_names.h"
#include "../config.h"

#include "sis_regs.h"
#include "sis_defs.h"


/** Random defines **/

#define WATCHDOG_DELAY  500000	/* Watchdog counter for retrace waiting */
#define IMAGE_MIN_WIDTH         32	/* Min and max source image sizes */
#define IMAGE_MIN_HEIGHT        24
#define IMAGE_MAX_WIDTH        720
#define IMAGE_MAX_HEIGHT       576
#define IMAGE_MAX_WIDTH_M650  1920
#define IMAGE_MAX_HEIGHT_M650 1080

#define OVERLAY_MIN_WIDTH       32	/* Minimum overlay sizes */
#define OVERLAY_MIN_HEIGHT      24

#define DISPMODE_SINGLE1 0x1	/* TW: CRT1 only */
#define DISPMODE_SINGLE2 0x2	/* TW: CRT2 only */
#define DISPMODE_MIRROR  0x4	/* TW: CRT1 + CRT2 MIRROR */

#define VMODE_INTERLACED       0x1
#define VMODE_DOUBLESCAN       0x2

typedef struct {
    short x1, y1, x2, y2;
} BoxRec;

typedef struct {
    int pixelFormat;

    uint16_t pitch;
    uint16_t origPitch;

    uint8_t keyOP;
    uint16_t HUSF;
    uint16_t VUSF;
    uint8_t IntBit;
    uint8_t wHPre;

    uint16_t srcW;
    uint16_t srcH;

    BoxRec dstBox;

    uint32_t PSY;
    uint32_t PSV;
    uint32_t PSU;
    uint8_t bobEnable;

    uint8_t contrastCtrl;
    uint8_t contrastFactor;

    uint8_t lineBufSize;

     uint8_t(*VBlankActiveFunc) ();

    uint16_t SCREENheight;

} SISOverlayRec, *SISOverlayPtr;


/** static variable definitions **/
static int sis_probed = 0;
static pciinfo_t pci_info;
unsigned int sis_verbose = 0;

static void *sis_mem_base;
/* static void *sis_reg_base; */
unsigned short sis_iobase;

unsigned int sis_vga_engine = UNKNOWN_VGA;
static unsigned int sis_displaymode = DISPMODE_SINGLE1;
static unsigned int sis_has_two_overlays = 0;
static unsigned int sis_bridge_is_slave = 0;
static unsigned int sis_shift_value = 1;
static unsigned int sis_vmode = 0;
unsigned int sis_vbflags = DISPTYPE_DISP1;
unsigned int sis_overlay_on_crt1 = 1;
int sis_crt1_off = -1;
unsigned int sis_detected_crt2_devices;
unsigned int sis_force_crt2_type = CRT2_DEFAULT;
int sis_device_id = -1;

static int sis_format;
static int sis_Yoff = 0;
static int sis_Voff = 0;
static int sis_Uoff = 0;
static int sis_screen_width = 640;
static int sis_screen_height = 480;

static int sis_frames[VID_PLAY_MAXFRAMES];

static vidix_grkey_t sis_grkey;

static vidix_capability_t sis_cap = {
    "SiS 300/310/325 Video Driver",
    "Jake Page",
    TYPE_OUTPUT,
    {0, 0, 0, 0},
    2048,
    2048,
    4,
    4,
    -1,
    FLAG_UPSCALER | FLAG_DOWNSCALER | FLAG_EQUALIZER,
    VENDOR_SIS,
    -1,
    {0, 0, 0, 0}
};

static vidix_video_eq_t sis_equal = {
    VEQ_CAP_BRIGHTNESS | VEQ_CAP_CONTRAST,
    200, 0, 0, 0, 0, 0, 0, 0
};

static unsigned short sis_card_ids[] = {
    DEVICE_SIS_300,
    DEVICE_SIS_315H,
    DEVICE_SIS_315,
    DEVICE_SIS_315PRO,
    DEVICE_SIS_330,
    DEVICE_SIS_540_VGA,
    DEVICE_SIS_550_VGA,
    DEVICE_SIS_630_VGA,
    DEVICE_SIS_650_VGA
};

/** function declarations **/

extern void sis_init_video_bridge(void);


static void set_overlay(SISOverlayPtr pOverlay, int index);
static void close_overlay(void);
static void calc_scale_factor(SISOverlayPtr pOverlay,
			      int index, int iscrt2);
static void set_line_buf_size(SISOverlayPtr pOverlay);
static void merge_line_buf(int enable);
static void set_format(SISOverlayPtr pOverlay);
static void set_colorkey(void);

static void set_brightness(uint8_t brightness);
static void set_contrast(uint8_t contrast);
static void set_saturation(char saturation);
static void set_hue(uint8_t hue);
#if 0
static void set_alpha(uint8_t alpha);
#endif

/* IO Port access functions */
static uint8_t getvideoreg(uint8_t reg)
{
    uint8_t ret;
    inSISIDXREG(SISVID, reg, ret);
    return (ret);
}

static void setvideoreg(uint8_t reg, uint8_t data)
{
    outSISIDXREG(SISVID, reg, data);
}

static void setvideoregmask(uint8_t reg, uint8_t data, uint8_t mask)
{
    uint8_t old;

    inSISIDXREG(SISVID, reg, old);
    data = (data & mask) | (old & (~mask));
    outSISIDXREG(SISVID, reg, data);
}

static void setsrregmask(uint8_t reg, uint8_t data, uint8_t mask)
{
    uint8_t old;

    inSISIDXREG(SISSR, reg, old);
    data = (data &a