- // that is unreliable however, so try and read from IO memory
- if (!cam_present)
- {
- saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTLO);
- if (ttpci_budget_debiread(&budget_av->budget, DEBICICAM, 0, 1, 0, 1) != -ETIMEDOUT)
- {
- cam_present = 1;
+ /* We also try and read from IO memory to work round the above detection bug. If
+ * there is no CAM, we will get a timeout. Only done if there is no cam
+ * present, since this test actually breaks some cams :(
+ *
+ * if the CI interface is not open, we also do the above test since we
+ * don't care if the cam has problems - we'll be resetting it on open() anyway */
+ if ((budget_av->slot_status == SLOTSTATUS_NONE) || (!open)) {
+ saa7146_setgpio(budget_av->budget.dev, 1, SAA7146_GPIO_OUTLO);
+ result = ttpci_budget_debiread(&budget_av->budget, DEBICICAM, 0, 1, 0, 1);
+ if ((result >= 0) && (budget_av->slot_status == SLOTSTATUS_NONE)) {
+ budget_av->slot_status = SLOTSTATUS_PRESENT;
+ printk(KERN_INFO "budget-av: cam inserted B\n");
+ } else if (result < 0) {
+ if (budget_av->slot_status != SLOTSTATUS_NONE) {
+ ciintf_slot_shutdown(ca, slot);
+ printk(KERN_INFO "budget-av: cam ejected 5\n");
+ return 0;