Re: [ts-7000] Trying to understand TS7KV

["Charlie Wallace" <>]

I just checked my TS7300 the blue is 6 bits using the 640x480 driver, but i 
don't know much about 
the mysterious transparency bit. So its RGB 565, maybe it goes to 4 bits blue 
when this tranparency 
bit is set.

Maybe thats what the equally mysterious bit 12 is of the VIDCTRL register.

I've still be unable to read from the VIDCTRL register, and i can't read back 
from the framebuffer, 
i'm curious if anyone else has noticed this or not ? It might be a problem with 
the blit being in 
progress since i can't successfully determine if it is, since my hardware locks 
up if i read from 
VIDCTRL.

This is the message i was referring to in the last post

///////////////
I use a macro define:
#define SetDispBufNums(x,y) (0x300 |(x<<3) | y)

Then I use:
VGAregs[_vVIDCTRL] = SetDispBufNums(1,2);
This selects screen 1 to view and 2 to edit (or was it the other way
round;)
Swapping the 1 and 2 will toggle displays. The values are 0..7.
main(){
int i;
volatile unsigned short *VGAregs; // VGA Registers 16 Bit
volatile unsigned short *fb; // Screen buffer 16 Bit
VGAregs = (unsigned short *)mmap(0, 4096, PROT_READ|PROT_WRITE,
MAP_SHARED, mem_fd, 0x72000000);
if (VGAregs == MAP_FAILED) { perror("mmap1:"); return 0; }
VGAregs += (0x30/sizeof(unsigned short));
fb = (unsigned short *)mmap(0, _scrW*_scrH*2, PROT_READ|PROT_WRITE,
MAP_SHARED, mem_fd, 0x72200000);
if (fb == MAP_FAILED) { perror("mmap2:"); return 0; }
VGAregs[_vVIDCTRL] = SetDispBufNums(1,2);
for (i=0; i<(640*480); i++) fb[i]=0xF800; // Fill Red
sleep(1);
VGAregs[_vVIDCTRL] = SetDispBufNums(2,1); // Display Red
for (i=0; i<(640*480); i++) fb[i]=0x07C0; // Fill Green
sleep(1);
VGAregs[_vVIDCTRL] = SetDispBufNums(1,2); // Display Green
sleep(1);
VGAregs[_vVIDCTRL] = SetDispBufNums(2,1); // Display Red
sleep(1);
VGAregs[_vVIDCTRL] = SetDispBufNums(1,2); // Display Green
} 




 
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