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Added a manual rearm mode to the driver.

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This commit is contained in:
John Winans
1994-10-19 18:31:52 +00:00
parent 7a96e3e27e
commit a781baf507
1 changed files with 104 additions and 27 deletions
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src/drv/drvDvx.c
+104 -27
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@@ -111,6 +111,12 @@
* told to start transferring more data. This is in case the sampling
* completes with less than 512 bytes in the fifo.
*
* In another phone conversation with Analogic, tech support told me that when
* the start signal is de-asserted (when using external start/stop mode), the
* sequence program pointer is reset to 0 (zero). This is fine and dandy, but
* it can cause the mux stage/pipeline to start improperly. Thus causing the
* first data sample to be corrupt.
*
* BUGS:
* The driver should inspect the VXI make and model codes and use a data type
* for the DMA buffer that is appropriate.
@@ -205,6 +211,8 @@ struct dvx_rec
unsigned long pgmMask[8]; /* ports to be read by seq-program */
unsigned short gain[8]; /* port gains */
int RearmMode; /* zero if auto-rearm, else manual */
IOSCANPVT *pioscanpvt;
};
@@ -284,20 +292,20 @@ struct {
static struct dvx_rec dvx[MAX_DVX_CARDS] = {
{ NULL, NULL, NULL, -1, -1, -1, -1, -1, 128, 0, {0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff}
,{0, 0, 0, 0, 0, 0, 0, 0}
, NULL
,{0, 0, 0, 0, 0, 0, 0, 0},
0 , NULL
},
{ NULL, NULL, NULL, -1, -1, -1, -1, -1, 128, 0, {0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff}
,{0, 0, 0, 0, 0, 0, 0, 0}
, NULL
,{0, 0, 0, 0, 0, 0, 0, 0},
0, NULL
},
{ NULL, NULL, NULL, -1, -1, -1, -1, -1, 128, 0, {0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff}
,{0, 0, 0, 0, 0, 0, 0, 0}
, NULL
,{0, 0, 0, 0, 0, 0, 0, 0},
0, NULL
},
{ NULL, NULL, NULL, -1, -1, -1, -1, -1, 128, 0, {0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff, 0x0000ffff}
,{0, 0, 0, 0, 0, 0, 0, 0}
, NULL
,{0, 0, 0, 0, 0, 0, 0, 0},
0, NULL
}
};
@@ -350,6 +358,8 @@ int dvxDebug = 0;
LOCAL void
dvx_int(struct dvx_rec *dvxptr)
{
/* BUG --- why are there STATIC variables in here????? */
static short i, junk;
register struct dvx_2502 *cptr;
static unsigned int tick, t, intlev;
@@ -386,17 +396,79 @@ dvx_int(struct dvx_rec *dvxptr)
dvxptr->inbuf->wordcnt = i; /* record # of words to clear fifo */
/* enable DMA opeations */
cptr->dma_point = DMA_CSR;
cptr->dma_data = CMR_SC | M_CIE | M_CH2; /* enable int channel #2 */
cptr->dma_data = CMR_START | M_CH2; /* start channel #2 */
if (dvxptr->RearmMode == 0)
{
/* enable DMA opeations */
cptr->dma_point = DMA_CSR;
/* enable int channel #2 */
cptr->dma_data = CMR_SC | M_CIE | M_CH2;
/* start channel #2 */
cptr->dma_data = CMR_START | M_CH2;
}
scanIoRequest(*(dvxptr->pioscanpvt));
break;
}
cptr->csr = dvxptr->csr_shadow;
}
int dvx_RearmModeSet(int card, int mode)
{
/* make sure hardware exists */
if ((card >= ai_num_cards[DVX2502]) || (card < 0))
return(-1);
dvx[card].RearmMode = mode;
return(0);
}
int dvx_rearm(int card)
{
struct dvx_rec *dvxptr;
struct dvx_2502 *cptr;
int i;
short junk;
/* make sure hardware exists */
if ((card >= ai_num_cards[DVX2502]) || (card < 0))
return(-1);
else if(dvx[card].pdvx2502 == NULL)
return(-2);
dvxptr = &dvx[card];
cptr = dvxptr->pdvx2502;
if (dvxptr->RearmMode == 0)
return(-3);
#if 0
cptr = dvxptr->pdvx2502;
cptr->dma_point = DMA_CSR;
cptr->dma_data = CMR_CC | M_IP | M_CH2; /* clear dma int channel #2 */
cptr->csr = dvxptr->csr_shadow & 0xff5f; /* disable fifo interrupts */
#endif
/* Drain the fifo of any crud */
for (i = 0; cptr->csr & S_NEPTY; i++, junk = cptr->fifo);
if (dvxDebug)
printf("dvx_rearm(%d) fifo residual = %d\n", card, i);
/* enable DMA opeations */
cptr->dma_point = DMA_CSR;
/* enable int channel #2 */
cptr->dma_data = CMR_SC | M_CIE | M_CH2;
/* start channel #2 */
cptr->dma_data = CMR_START | M_CH2;
return(0);
}
/*
* dvx_driver_init
*
@@ -525,6 +597,8 @@ LOCAL long dvx_driver_init(void)
#endif
return(-1);
if (dvxDebug)
printf("dvx_driver_init(%d) allocated ibp at %p buffer at %p\n", i, ibptr, ibptr->data);
if (j == 0){
dvx[i].inbuf = ibptr; /* initialize if first */
}
@@ -722,7 +796,10 @@ dvx_program(int card, int board, unsigned long mask, int dmaSize, int gain)
* Allow the user to specify the interrupt level number
*
* It returns the 'old' IRQ level value.
*
* NOTE that off the shelf DVX2502s are set to use IRQ level 1
*/
int dvx_setIrqLevel(int level)
{
int i;
@@ -1193,33 +1270,33 @@ int dvx_dma_stat(int card, int chan)
ptr = dvx[card].pdvx2502;
temp = (chan & 0x1)<<1;
ptr->dma_point = DMA_CSR | temp;
printf("dma status = %x\n",ptr->dma_data);
printf("dma status = %X\n",ptr->dma_data);
ptr->dma_point = DMA_MMR;
printf("master mode register = %x\n",ptr->dma_data);
printf("master mode register = %X\n",ptr->dma_data);
ptr->dma_point = DMA_CARH | temp;
printf("chain address high = %x\n",ptr->dma_data);
printf("chain address = %4.4X",ptr->dma_data);
ptr->dma_point = DMA_CARL | temp;
printf("chain address low = %x\n",ptr->dma_data);
printf("%4.4X\n",ptr->dma_data);
ptr->dma_point = DMA_CARAH | temp;
printf("current address register A high = %x\n",ptr->dma_data);
printf("current address register A = %4.4X",ptr->dma_data);
ptr->dma_point = DMA_CARAL | temp;
printf("current address register A low = %x\n",ptr->dma_data);
printf("%4.4X\n",ptr->dma_data);
ptr->dma_point = DMA_CARBH | temp;
printf("current address register B high = %x\n",ptr->dma_data);
printf("current address register B = %4.4X",ptr->dma_data);
ptr->dma_point = DMA_CARBL | temp;
printf("current address register B low = %x\n",ptr->dma_data);
printf("%4.4X\n",ptr->dma_data);
ptr->dma_point = DMA_BARAH | temp;
printf("base address register A high = %x\n",ptr->dma_data);
printf("base address register A = %4.4X",ptr->dma_data);
ptr->dma_point = DMA_BARAL | temp;
printf("base address register A low = %x\n",ptr->dma_data);
printf("%4.4X\n",ptr->dma_data);
ptr->dma_point = DMA_BARBH | temp;
printf("base address register B high = %x\n",ptr->dma_data);
printf("base address register B = %4.4X",ptr->dma_data);
ptr->dma_point = DMA_BARBL | temp;
printf("base address register B low = %x\n",ptr->dma_data);
printf("%4.4X\n",ptr->dma_data);
ptr->dma_point = DMA_COC | temp;
printf("current operation count = %x\n",ptr->dma_data);
printf("current operation count = %4.4X\n",ptr->dma_data);
ptr->dma_point = DMA_BOC | temp;
printf("base operation count = %x\n",ptr->dma_data);
printf("base operation count = %4.4X\n",ptr->dma_data);
}
return 0;
}