/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
*
* This file is part of the 86Box distribution.
*
* Generic SVGA handling.
*
*
*
* Authors: Sarah Walker,
* Miran Grca,
*
* Copyright 2008-2020 Sarah Walker.
* Copyright 2016-2020 Miran Grca.
*/
#include <86box/thread.h>
#include <86box/vid_8514a.h>
#include <86box/vid_xga.h>
#ifndef VIDEO_SVGA_H
# define VIDEO_SVGA_H
# define FLAG_EXTRA_BANKS 1
# define FLAG_ADDR_BY8 2
# define FLAG_EXT_WRITE 4
# define FLAG_LATCH8 8
# define FLAG_NOSKEW 16
# define FLAG_ADDR_BY16 32
# define FLAG_RAMDAC_SHIFT 64
# define FLAG_128K_MASK 128
struct monitor_t;
typedef struct {
int ena,
x, y, xoff, yoff, cur_xsize, cur_ysize,
v_acc, h_acc;
uint32_t addr, pitch;
} hwcursor_t;
typedef union {
uint64_t q;
uint32_t d[2];
uint16_t w[4];
uint8_t b[8];
} latch_t;
typedef struct svga_t {
ibm8514_t dev8514;
xga_t xga;
mem_mapping_t mapping;
uint8_t fast, chain4, chain2_write, chain2_read,
ext_overscan, bus_size,
lowres, interlace, linedbl, rowcount,
set_reset_disabled, bpp, ramdac_type, fb_only,
readmode, writemode, readplane,
hwcursor_oddeven, dac_hwcursor_oddeven, overlay_oddeven,
fcr, hblank_overscan;
int dac_addr, dac_pos, dac_r, dac_g,
vtotal, dispend, vsyncstart, split, vblankstart,
hdisp, hdisp_old, htotal, hdisp_time, rowoffset,
dispon, hdisp_on,
vc, sc, linepos, vslines, linecountff, oddeven,
con, cursoron, blink, scrollcache, char_width,
firstline, lastline, firstline_draw, lastline_draw,
displine, fullchange, x_add, y_add, pan,
vram_display_mask, vidclock, dots_per_clock, hblank_ext,
hwcursor_on, dac_hwcursor_on, overlay_on, set_override,
hblankstart, hblankend, hblank_sub, hblank_end_val, hblank_end_len;
/*The three variables below allow us to implement memory maps like that seen on a 1MB Trio64 :
0MB-1MB - VRAM
1MB-2MB - VRAM mirror
2MB-4MB - open bus
4MB-xMB - mirror of above
For the example memory map, decode_mask would be 4MB-1 (4MB address space), vram_max would be 2MB
(present video memory only responds to first 2MB), vram_mask would be 1MB-1 (video memory wraps at 1MB)
*/
uint32_t decode_mask, vram_max,
vram_mask,
charseta, charsetb,
adv_flags, ma_latch,
ca_adj, ma, maback,
write_bank, read_bank,
extra_banks[2],
banked_mask,
ca, overscan_color,
*map8, pallook[512];
PALETTE vgapal;
uint64_t dispontime, dispofftime;
latch_t latch;
pc_timer_t timer;
double clock;
hwcursor_t hwcursor, hwcursor_latch,
dac_hwcursor, dac_hwcursor_latch,
overlay, overlay_latch;
void (*render)(struct svga_t *svga);
void (*recalctimings_ex)(struct svga_t *svga);
void (*video_out)(uint16_t addr, uint8_t val, void *p);
uint8_t (*video_in)(uint16_t addr, void *p);
void (*hwcursor_draw)(struct svga_t *svga, int displine);
void (*dac_hwcursor_draw)(struct svga_t *svga, int displine);
void (*overlay_draw)(struct svga_t *svga, int displine);
void (*vblank_start)(struct svga_t *svga);
void (*ven_write)(struct svga_t *svga, uint8_t val, uint32_t addr);
float (*getclock)(int clock, void *p);
/* Called when VC=R18 and friends. If this returns zero then MA resetting
is skipped. Matrox Mystique in Power mode reuses this counter for
vertical line interrupt*/
int (*line_compare)(struct svga_t *svga);
/*Called at the start of vertical sync*/
void (*vsync_callback)(struct svga_t *svga);
uint32_t (*translate_address)(uint32_t addr, void *p);
/*If set then another device is driving the monitor output and the SVGA
card should not attempt to display anything */
int override;
void *p;
uint8_t crtc[256], gdcreg[256], attrregs[32], seqregs[256],
egapal[16],
*vram, *changedvram;
uint8_t crtcreg, gdcaddr,
attrff, attr_palette_enable, attraddr, seqaddr,
miscout, cgastat, scrblank,
plane_mask, writemask,
colourcompare, colournocare,
dac_mask, dac_status,
dpms, dpms_ui,
ksc5601_sbyte_mask, ksc5601_udc_area_msb[2];
int ksc5601_swap_mode;
uint16_t ksc5601_english_font_type;
int vertical_linedbl;
/*Used to implement CRTC[0x17] bit 2 hsync divisor*/
int hsync_divisor;
/*Tseng-style chain4 mode - CRTC dword mode is the same as byte mode, chain4
addresses are shifted to match*/
int packed_chain4;
/*Force CRTC to dword mode, regardless of CR14/CR17. Required for S3 enhanced mode*/
int force_dword_mode;
int force_old_addr;
int remap_required;
uint32_t (*remap_func)(struct svga_t *svga, uint32_t in_addr);
void *ramdac, *clock_gen;
/* Monitor Index */
uint8_t monitor_index;
/* Pointer to monitor */
monitor_t* monitor;
} svga_t;
extern int vga_on, ibm8514_on;
extern void ibm8514_poll(ibm8514_t *dev, svga_t *svga);
extern void ibm8514_recalctimings(svga_t *svga);
extern void xga_poll(xga_t *xga, svga_t *svga);
extern void xga_recalctimings(svga_t *svga);
extern int svga_init(const device_t *info, svga_t *svga, void *p, int memsize,
void (*recalctimings_ex)(struct svga_t *svga),
uint8_t (*video_in)(uint16_t addr, void *p),
void (*video_out)(uint16_t addr, uint8_t val, void *p),
void (*hwcursor_draw)(struct svga_t *svga, int displine),
void (*overlay_draw)(struct svga_t *svga, int displine));
extern void svga_recalctimings(svga_t *svga);
extern void svga_close(svga_t *svga);
uint8_t svga_read(uint32_t addr, void *p);
uint16_t svga_readw(uint32_t addr, void *p);
uint32_t svga_readl(uint32_t addr, void *p);
void svga_write(uint32_t addr, uint8_t val, void *p);
void svga_writew(uint32_t addr, uint16_t val, void *p);
void svga_writel(uint32_t addr, uint32_t val, void *p);
uint8_t svga_read_linear(uint32_t addr, void *p);
uint8_t svga_readb_linear(uint32_t addr, void *p);
uint16_t svga_readw_linear(uint32_t addr, void *p);
uint32_t svga_readl_linear(uint32_t addr, void *p);
void svga_write_linear(uint32_t addr, uint8_t val, void *p);
void svga_writeb_linear(uint32_t addr, uint8_t val, void *p);
void svga_writew_linear(uint32_t addr, uint16_t val, void *p);
void svga_writel_linear(uint32_t addr, uint32_t val, void *p);
void svga_add_status_info(char *s, int max_len, void *p);
extern uint8_t svga_rotate[8][256];
void svga_out(uint16_t addr, uint8_t val, void *p);
uint8_t svga_in(uint16_t addr, void *p);
svga_t *svga_get_pri(void);
void svga_set_override(svga_t *svga, int val);
void svga_set_ramdac_type(svga_t *svga, int type);
void svga_close(svga_t *svga);
uint32_t svga_mask_addr(uint32_t addr, svga_t *svga);
uint32_t svga_mask_changedaddr(uint32_t addr, svga_t *svga);
void svga_doblit(int wx, int wy, svga_t *svga);
enum {
RAMDAC_6BIT = 0,
RAMDAC_8BIT
};
/* We need a way to add a device with a pointer to a parent device so it can attach itself to it, and
possibly also a second ATi 68860 RAM DAC type that auto-sets SVGA render on RAM DAC render change. */
extern void ati68860_ramdac_out(uint16_t addr, uint8_t val, void *p, svga_t *svga);
extern uint8_t ati68860_ramdac_in(uint16_t addr, void *p, svga_t *svga);
extern void ati68860_set_ramdac_type(void *p, int type);
extern void ati68860_ramdac_set_render(void *p, svga_t *svga);
extern void ati68860_ramdac_set_pallook(void *p, int i, uint32_t col);
extern void ati68860_hwcursor_draw(svga_t *svga, int displine);
extern void att49x_ramdac_out(uint16_t addr, int rs2, uint8_t val, void *p, svga_t *svga);
extern uint8_t att49x_ramdac_in(uint16_t addr, int rs2, void *p, svga_t *svga);
extern void att498_ramdac_out(uint16_t addr, int rs2, uint8_t val, void *p, svga_t *svga);
extern uint8_t att498_ramdac_in(uint16_t addr, int rs2, void *p, svga_t *svga);
extern float av9194_getclock(int clock, void *p);
extern void bt48x_ramdac_out(uint16_t addr, int rs2, int rs3, uint8_t val, void *p, svga_t *svga);
extern uint8_t bt48x_ramdac_in(uint16_t addr, int rs2, int rs3, void *p, svga_t *svga);
extern void bt48x_recalctimings(void *p, svga_t *svga);
extern void bt48x_hwcursor_draw(svga_t *svga, int displine);
extern void ibm_rgb528_ramdac_out(uint16_t addr, int rs2, uint8_t val, void *p, svga_t *svga);
extern uint8_t ibm_rgb528_ramdac_in(uint16_t addr, int rs2, void *p, svga_t *svga);
extern void ibm_rgb528_recalctimings(void *p, svga_t *svga);
extern void ibm_rgb528_hwcursor_draw(svga_t *svga, int displine);
extern void icd2061_write(void *p, int val);
extern float icd2061_getclock(int clock, void *p);
/* The code is the same, the #define's are so that the correct name can be used. */
# define ics9161_write icd2061_write
# define ics9161_getclock icd2061_getclock
extern float ics2494_getclock(int clock, void *p);
extern void ics2595_write(void *p, int strobe, int dat);
extern double ics2595_getclock(void *p);
extern void ics2595_setclock(void *p, double clock);
extern void sc1148x_ramdac_out(uint16_t addr, int rs2, uint8_t val, void *p, svga_t *svga);
extern uint8_t sc1148x_ramdac_in(uint16_t addr, int rs2, void *p, svga_t *svga);
extern void sc1502x_ramdac_out(uint16_t addr, uint8_t val, void *p, svga_t *svga);
extern uint8_t sc1502x_ramdac_in(uint16_t addr, void *p, svga_t *svga);
extern void sdac_ramdac_out(uint16_t addr, int rs2, uint8_t val, void *p, svga_t *svga);
extern uint8_t sdac_ramdac_in(uint16_t addr, int rs2, void *p, svga_t *svga);
extern float sdac_getclock(int clock, void *p);
extern void stg_ramdac_out(uint16_t addr, uint8_t val, void *p, svga_t *svga);
extern uint8_t stg_ramdac_in(uint16_t addr, void *p, svga_t *svga);
extern float stg_getclock(int clock, void *p);
extern void tkd8001_ramdac_out(uint16_t addr, uint8_t val, void *p, svga_t *svga);
extern uint8_t tkd8001_ramdac_in(uint16_t addr, void *p, svga_t *svga);
extern void tvp3026_ramdac_out(uint16_t addr, int rs2, int rs3, uint8_t val, void *p, svga_t *svga);
extern uint8_t tvp3026_ramdac_in(uint16_t addr, int rs2, int rs3, void *p, svga_t *svga);
extern void tvp3026_recalctimings(void *p, svga_t *svga);
extern void tvp3026_hwcursor_draw(svga_t *svga, int displine);
extern float tvp3026_getclock(int clock, void *p);
# ifdef EMU_DEVICE_H
extern const device_t ati68860_ramdac_device;
extern const device_t att490_ramdac_device;
extern const device_t att491_ramdac_device;
extern const device_t att492_ramdac_device;
extern const device_t att498_ramdac_device;
extern const device_t av9194_device;
extern const device_t bt484_ramdac_device;
extern const device_t att20c504_ramdac_device;
extern const device_t bt485_ramdac_device;
extern const device_t att20c505_ramdac_device;
extern const device_t bt485a_ramdac_device;
extern const device_t gendac_ramdac_device;
extern const device_t ibm_rgb528_ramdac_device;
extern const device_t ics2494an_305_device;
extern const device_t ics2595_device;
extern const device_t icd2061_device;
extern const device_t ics9161_device;
extern const device_t sc11483_ramdac_device;
extern const device_t sc11487_ramdac_device;
extern const device_t sc11486_ramdac_device;
extern const device_t sc11484_nors2_ramdac_device;
extern const device_t sc1502x_ramdac_device;
extern const device_t sdac_ramdac_device;
extern const device_t stg_ramdac_device;
extern const device_t tkd8001_ramdac_device;
extern const device_t tseng_ics5301_ramdac_device;
extern const device_t tseng_ics5341_ramdac_device;
extern const device_t tvp3026_ramdac_device;
# endif
#endif /*VIDEO_SVGA_H*/