void cdc_get_line_coding(void) {
usb_unset_in_handler(0); // Unregister IN handler;
}
void cdc_set_control_line_state_status(void) {
usb_unset_in_handler(0);
}
void usb_init(ROMPTR const unsigned char *device_descriptor,
ROMPTR const unsigned char *config_descriptor,
ROMPTR const unsigned char *string_descriptor,
int num_string_descriptors) {
int i;
usb_device_descriptor = device_descriptor;
usb_config_descriptor = config_descriptor;
usb_string_descriptor = string_descriptor;
usb_num_string_descriptors = num_string_descriptors;
SetUsbAddress(0); // JTR added here. Probably not required though
ResetPPbuffers();
DisableUsbInterrupts();
DisableAllUsbInterrupts();
ClearAllUsbErrorInterruptFlags();
ClearAllUsbInterruptFlags();
ConfigureUsbHardware();
sof_handler = NULL;
class_setup_handler = NULL;
vendor_setup_handler = NULL;
for (i = 0; i < MAX_CHIP_EP; i++) {
endpoints[i].out_handler = NULL;
endpoints[i].in_handler = NULL;
}
// Register ep0 - no handlers
usb_unset_in_handler(0);
usb_unset_out_handler(0);
// JTR All UEPx SPRs are hard coded. I cannot see much point of tables or indexing for these.
// On the PIC16C765 such indexing was required for the STALL bit but now the STALL feature
// is in the Buffer descriptor table not in the UEPx SPRs.
// See changes to "USB_REQUEST_GET_STATUS"
// USB_UEP[0] = endpoints[0].type;
USB_UEP0 = USB_EP_CONTROL;
/* Configure endpoints TODO: Only ep0 ? */
// JTR Right! code for other end points snipped...At this point we are only setting up EP0
#ifdef USB_SELF_POWERED
usb_device_status = 0x0001;
#else
usb_device_status = 0x0000;
#endif
usb_device_state = 0x00; // JTR added flag byte for enumeration state
usb_current_cfg = 0; // JTR formally usb_configured
usb_addr_pending = 0x00;
#if USB_PP_BUF_MODE == 0
usb_bdt[USB_CALC_BD(0, USB_DIR_OUT, USB_PP_EVEN)].BDCNT = USB_EP0_BUFFER_SIZE; // JTR endpoints[0].buffer_size; same thing done more obviously
usb_bdt[USB_CALC_BD(0, USB_DIR_OUT, USB_PP_EVEN)].BDADDR = usb_ep0_out_buf; //endpoints[0].out_buffer;
usb_bdt[USB_CALC_BD(0, USB_DIR_OUT, USB_PP_EVEN)].BDSTAT = UOWN + DTSEN;
usb_bdt[USB_CALC_BD(0, USB_DIR_IN, USB_PP_EVEN)].BDCNT = 0;
usb_bdt[USB_CALC_BD(0, USB_DIR_IN, USB_PP_EVEN)].BDADDR = usb_ep0_in_buf; //endpoints[0].in_buffer;
usb_bdt[USB_CALC_BD(0, USB_DIR_IN, USB_PP_EVEN)].BDSTAT = DTS; // Set DTS => First packet inverts, ie. is Data0
#else
// TODO: Implement Ping-Pong buffering setup.
#error "PP Mode not implemented yet"
#endif
}
void cdc_set_line_coding_status(void) {
usb_unset_in_handler(0);
}
