static int (*ioctl_func) (int, int, void *) = NULL;
static int windrvrfd = -1;
static int parportfd = -1;
-static int parportnum = 0;
static unsigned long ppbase = 0;
static unsigned long ecpbase = 0;
+static struct pports *pplist = NULL;
FILE *modulesfp = NULL;
static int modules_read = 0;
static struct usb_bus *busses = NULL;
int pp_transfer(WD_TRANSFER *tr, int fd, unsigned int request, unsigned char *wdioctl) {
int ret = 0;
+ unsigned long port = (unsigned long)tr->dwPort;
unsigned char val;
+ static int last_pp_write = 0;
DPRINTF("dwPort: 0x%lx, cmdTrans: %lu, dwbytes: %ld, fautoinc: %ld, dwoptions: %ld\n",
(unsigned long)tr->dwPort, tr->cmdTrans, tr->dwBytes,
if (parportfd < 0)
return ret;
- switch(tr->cmdTrans) {
- case 10: /* Read Byte */
- if ((unsigned long)tr->dwPort == ppbase) { /* Data Port */
+ if (port == ppbase + PP_DATA) {
+ DPRINTF("data port\n");
+ switch(tr->cmdTrans) {
+ case PP_READ:
ret = 0; /* We don't support reading of the data port */
- } else if ((unsigned long)tr->dwPort == ppbase + 1) { /* Status Port */
- DPRINTF("status port\n");
- ret = ioctl(parportfd, PPRSTATUS, &val);
- } else if ((unsigned long)tr->dwPort == ppbase + 2) { /* Control Port */
- DPRINTF("control port\n");
- ret = ioctl(parportfd, PPRCONTROL, &val);
- }
- break;
- case 13: /* Write Byte */
- if ((unsigned long)tr->dwPort == ppbase) { /* Data Port */
- DPRINTF("data port\n");
+ break;
+
+ case PP_WRITE:
ret = ioctl(parportfd, PPWDATA, &val);
- } else if ((unsigned long)tr->dwPort == ppbase + 1) { /* Status Port */
+ last_pp_write = val;
+ break;
+
+ default:
+ fprintf(stderr,"!!!Unsupported TRANSFER command: %lu!!!\n", tr->cmdTrans);
+ ret = -1;
+ break;
+ }
+ } else if (port == ppbase + PP_STATUS) {
+ DPRINTF("status port (last write: %d)\n", last_pp_write);
+ switch(tr->cmdTrans) {
+ case PP_READ:
+ ret = ioctl(parportfd, PPRSTATUS, &val);
+#ifdef FORCE_PC3_IDENT
+ val &= 95;
+ if (last_pp_write & 64)
+ val |= 32;
+ else
+ val |= 128;
+#endif
+ break;
+
+ case PP_WRITE:
ret = 0; /* Status Port is readonly */
- } else if ((unsigned long)tr->dwPort == ppbase + 2) { /* Control Port */
- DPRINTF("control port\n");
+ break;
+
+ default:
+ fprintf(stderr,"!!!Unsupported TRANSFER command: %lu!!!\n", tr->cmdTrans);
+ ret = -1;
+ break;
+ }
+ } else if (port == ppbase + PP_CONTROL) {
+ DPRINTF("control port\n");
+ switch(tr->cmdTrans) {
+ case PP_READ:
+ ret = ioctl(parportfd, PPRCONTROL, &val);
+ break;
+
+ case PP_WRITE:
ret = ioctl(parportfd, PPWCONTROL, &val);
- }
- break;
- default:
- fprintf(stderr,"!!!Unsupported TRANSFER command: %lu!!!\n", tr->cmdTrans);
- ret = -1;
- break;
+ break;
+
+ default:
+ fprintf(stderr,"!!!Unsupported TRANSFER command: %lu!!!\n", tr->cmdTrans);
+ ret = -1;
+ break;
+ }
+ } else if ((port == ecpbase + PP_ECP_CFGA) && ecpbase) {
+ DPRINTF("ECP_CFGA port\n");
+ } else if ((port == ecpbase + PP_ECP_CFGB) && ecpbase) {
+ DPRINTF("ECP_CFGB port\n");
+ } else if ((port == ecpbase + PP_ECP_ECR) && ecpbase) {
+ DPRINTF("ECP_ECR port\n");
+ } else {
+ DPRINTF("access to unsupported address range!\n");
+ ret = 0;
}
tr->Data.Byte = val;
ret = (*ioctl_func) (fd, request, wdioctl);
#else
if (parportfd < 0) {
- snprintf(ppdev, sizeof(ppdev), "/dev/parport%d", parportnum);
+ int max = -1;
+ struct pports **port = &pplist;
+
+ while (*port) {
+ DPRINTF("Looking up parallel port in linked list, entry: %d\n", (*port)->num);
+ if (max < (*port)->num)
+ max = (*port)->num;
+
+ if ((*port)->base == (unsigned long)cr->Card.Item[0].I.IO.dwAddr) {
+ break;
+ }
+
+ port = &((*port)->next);
+ }
+
+ if (!(*port)) { /* not found */
+ (*port) = malloc(sizeof(struct pports));
+ if (!(*port)) {
+ perror("malloc");
+ exit(EXIT_FAILURE);
+ }
+
+ (*port)->base = (unsigned long)cr->Card.Item[0].I.IO.dwAddr;
+ (*port)->num = max+1;
+ (*port)->next = NULL;
+
+ DPRINTF("parallel port not in linked list, new entry: %d\n", (*port)->num);
+ }
+
+ snprintf(ppdev, sizeof(ppdev), "/dev/parport%d", (*port)->num);
DPRINTF("opening %s\n", ppdev);
parportfd = open(ppdev, O_RDWR|O_EXCL);
- parportnum++;
if (parportfd < 0)
fprintf(stderr,"Can't open %s: %s\n", ppdev, strerror(errno));
if (ioctl(parportfd, PPCLAIM) == -1)
return ret;
+ ecpbase = 0;
pmode = IEEE1284_MODE_COMPAT;
if (ioctl(parportfd, PPNEGOT, &pmode) == -1)
return ret;
- if (cr->Card.dwItems > 1) {
- ecpbase = cr->Card.Item[1].I.IO.dwBytes;
+ if (cr->Card.dwItems > 1 && cr->Card.Item[1].I.IO.dwAddr) {
+ DPRINTF("ECP mode requested\n");
+ ecpbase = (unsigned long)cr->Card.Item[1].I.IO.dwAddr;
/* TODO: Implement ECP mode */
#if 0
pmode = IEEE1284_MODE_ECP;
if (ioctl(parportfd, PPNEGOT, &pmode) == -1) {
+ ecpbase = 0;
pmode = IEEE1284_MODE_COMPAT;
if (ioctl(parportfd, PPNEGOT, &pmode) == -1)
return ret;
ioctl(parportfd, PPRELEASE);
close(parportfd);
parportfd = -1;
- parportnum--;
}
#endif
}
projects / usb-driver / blobdiff