[ts-7000] Re: TS-7260 DIO with 2.6.21-ts kernel

["r_bergo" <>]

Hello Don !
Last year I migrated my TS7260 software to kernel 2.6.34 and I got some toubles. One of those whose about DIO.
Please, download my IO library from here , compile the included iotest (make -f IOTEST), unplug any DIO connectors from your TS and run ./bin/iotest

The output on my Ts7260 boards is:
# ./bin/iotest 
TEST OUTPUT BITS ON PORT A
        [ Port 0000, Dir 001F, Value 0000 ]     write 0000 read 0000    ------------------- PASS
        [ Port 0000, Dir 001F, Value 0055 ]     write 0015 read 0015    ------------------- PASS
        [ Port 0000, Dir 001F, Value 00AA ]     write 000A read 000A    ------------------- PASS
        [ Port 0000, Dir 001F, Value 00FF ]     write 001F read 001F    ------------------- PASS
        ---->OK
TEST OUTPUT BITS ON PORT B
        [ Port 0100, Dir 00F8, Value 0000 ]     write 0000 read 0000    ------------------- PASS
        [ Port 0100, Dir 00F8, Value 0055 ]     write 0050 read 0010    ------------------- FAIL bit 0040 !!!
        [ Port 0100, Dir 00F8, Value 00AA ]     write 00A8 read 00A8    ------------------- PASS
        [ Port 0100, Dir 00F8, Value 00FF ]     write 00F8 read 00B8    ------------------- FAIL bit 0040 !!!
        ---->ERROR BITS: 40
TEST OUTPUT BITS ON PORT C
        [ Port 0200, Dir 0001, Value 0000 ]     write 0000 read 0000    ------------------- PASS
        [ Port 0200, Dir 0001, Value 0001 ]     write 0001 read 0001    ------------------- PASS
        ---->OK
TEST OUTPUT BITS ON PORT F
        [ Port 0300, Dir 0000, Value 0000 ]     write 0000 read 0000    ------------------- PASS
        [ Port 0300, Dir 0000, Value 0002 ]     write 0000 read 0000    ------------------- PASS
        ---->OK
TEST OUTPUT BITS ON PORT H
        [ Port 0400, Dir 0038, Value 0000 ]     write 0000 read 0000    ------------------- PASS
        [ Port 0400, Dir 0038, Value 0055 ]     write 0010 read 0010    ------------------- PASS
        [ Port 0400, Dir 0038, Value 00AA ]     write 0028 read 0028    ------------------- PASS
        [ Port 0400, Dir 0038, Value 00FF ]     write 0038 read 0038    ------------------- PASS
        ---->OK
Test <<FAILED>>

Everiting works well except two bits on port B!
If you run the same test on the same board using kernel 2.4 instead of 2.6.34 you will get a different result but not ok at all.

Please give me a feedback.
Roberto


--- In  "Rekcut_Nod" <> wrote:
>
> If I run a little utility (see below) to read and write to the memory register corresponding to the DIO data on the DIO1 header of the TS-7260 board, I get different results depending upon whether I'm running the TS stock 2.4 kernel, or their (unsupported) 2.6.21-ts kernel.  Has anyone experienced this?  Has anyone found a way to get the DIO lines to work with the 2.6 kernel?
> 
> Any assistance is greatly appreciated!
> Don
> 
> utility source:
> 
> int main(int argc, char **argv)
> {
> volatile unsigned char *PBDR, *PBDDR;
> unsigned char *start, _ONE_=0x1;
> int fd = open("/dev/mem", O_RDWR|O_SYNC);
> int i;
> 
> start = mmap(0, getpagesize(), PROT_READ|PROT_WRITE, MAP_SHARED, fd,
> 0x80840000);
> PBDR = (unsigned char *)(start + 0x04); // port b
> PBDDR = (unsigned char *)(start + 0x14); // port b direction register
> 
> *PBDDR = 0xff;// all output
> 
> for(i=0;i<8;i++)
> {
>  *PBDR = ONE<<i;
>   printf("*PBDR=%02x\n",*PBDR);
>   sleep(2);
> }
> 
> close(fd);
> return 0;
> }
> 
> Results, with DIO_4 (pin 9) grounded:
> 2.4 kernel:
> PBDR=01
> PBDR=02
> PBDR=04
> PBDR=08
> PBDR=00
> PBDR=20
> PBDR=40
> PBDR=80
> 2.6 kernel:
> PBDR=0f
> PBDR=0f
> PBDR=0f
> PBDR=0f
> PBDR=0f
> PBDR=2f
> PBDR=4f
> PBDR=8f
>

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