176 lines
5.7 KiB
Plaintext
176 lines
5.7 KiB
Plaintext
module SIMTRACE_Emulation {
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import from General_Types all;
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import from Osmocom_Types all;
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import from Misc_Helpers all;
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import from USB_PortType all;
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import from USB_Types all;
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import from USB_Templates all;
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import from USB_Component all;
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import from USB_PortTypes all;
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import from SIMTRACE_Types all;
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import from SIMTRACE_Templates all;
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/* one USB interface */
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type component ST_Emulation_CT extends USB_CT {
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var integer g_ep_in;
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var integer g_ep_out;
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var integer g_ep_irq;
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var USB_IF_Params g_pars;
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port ST_USER_PT INOUT;
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port ST_USER_PT IRQ;
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};
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type port ST_USER_PT message {
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inout SIMTRACE_PDU;
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} with { extension "internal" };
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/* configuration for a ST_Emulation_CT */
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type record USB_IF_Params {
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USB_Device_Match usb_dev_match,
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integer usb_if_nr
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};
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private const octetstring c_oct261 := '000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'O;
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private function f_usb_submit_xfer(USB_endpoint ep, octetstring data := c_oct261,
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USB_transfer_type ttype := USB_TRANSFER_TYPE_BULK,
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integer tout_ms := 30000) runs on USB_CT
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{
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var integer req_hdl := f_usb_get_req_hdl();
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var USB_transfer xfer := {
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device_hdl := g_dev_hdl,
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transfer_hdl := req_hdl,
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endpoint := ep,
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ttype := ttype,
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data := data,
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timeout_msec := tout_ms
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};
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USB.send(xfer);
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}
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/* open libusb device; claim interface; resolve endpoints; submit IN/IRQ transfers */
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function main(USB_IF_Params pars) runs on ST_Emulation_CT {
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var USB_Descriptor_Node root;
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var integer i_config;
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var integer i;
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g_pars := pars;
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f_usb_init(g_pars.usb_dev_match);
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i_config := f_usb_get_config();
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log("USB Configuration: ", i_config);
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root := f_usb_get_desc_tree();
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log(root);
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/* iterate over list of interfaces in current configuration */
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for (i := 0; i < lengthof(root.children[i_config].children); i:=i+1) {
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var USB_Descriptor_Node ifn := root.children[i_config].children[i];
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var USB_InterfaceDescriptor ifd := ifn.desc.interface;
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var integer j;
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if (ifd.bInterfaceNumber != g_pars.usb_if_nr) {
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continue;
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}
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/* determine endpoints inside interface */
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for (j := 0; j < lengthof(ifn.children); j:=j+1) {
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if (ischosen(ifn.children[j].desc.endpoint)) {
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var USB_EndpointDescriptor epd := ifn.children[j].desc.endpoint;
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select (epd.bmAttributes.TranferType) {
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case (USB_EpTransfer_BULK) {
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if (epd.bEndpointAddress and4b '80'O == '80'O) {
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g_ep_in := oct2int(epd.bEndpointAddress);
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} else {
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g_ep_out := oct2int(epd.bEndpointAddress);
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}
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}
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case (USB_EpTransfer_INTERRUPT) {
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g_ep_irq := oct2int(epd.bEndpointAddress);
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}
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}
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}
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}
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}
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log("USB Endpoints found: IN: ", int2oct(g_ep_in, 1), ", OUT: ", int2oct(g_ep_out, 1),
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" IRQ: ", int2oct(g_ep_irq, 1));
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f_usb_claim_interface(g_dev_hdl, g_pars.usb_if_nr);
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/* submit xfer fro IN and IRQ endpoints */
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f_usb_submit_xfer(g_ep_in);
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f_usb_submit_xfer(g_ep_irq, ttype := USB_TRANSFER_TYPE_INTERRUPT);
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var USB_transfer_compl tc;
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var SIMTRACE_PDU stpdu_out, stpdu_in;
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while (true) {
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alt {
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[] USB.receive(tr_UsbXfer_compl(g_ep_out, USB_TRANSFER_TYPE_BULK,
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USB_TRANSFER_COMPLETED, g_dev_hdl, ?)) {
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/* do nothing; normal completion of OUT transfer */
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}
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[] USB.receive(tr_UsbXfer_compl(g_ep_in, USB_TRANSFER_TYPE_BULK,
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USB_TRANSFER_COMPLETED, g_dev_hdl, ?)) -> value tc {
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/* Submit another IN transfer */
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f_usb_submit_xfer(g_ep_in);
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stpdu_in := dec_SIMTRACE_PDU(tc.data);
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INOUT.send(stpdu_in);
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}
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[] USB.receive(tr_UsbXfer_compl(g_ep_irq, USB_TRANSFER_TYPE_INTERRUPT,
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USB_TRANSFER_COMPLETED, g_dev_hdl, ?))-> value tc {
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/* Submit another IRQ transfer */
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f_usb_submit_xfer(g_ep_irq, ttype := USB_TRANSFER_TYPE_INTERRUPT);
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stpdu_in := dec_SIMTRACE_PDU(tc.data);
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IRQ.send(stpdu_in);
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}
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[] USB.receive(tr_UsbXfer_compl(g_ep_irq, USB_TRANSFER_TYPE_INTERRUPT,
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USB_TRANSFER_TIMED_OUT, g_dev_hdl, ?)) -> value tc {
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/* Submit another IRQ transfer */
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f_usb_submit_xfer(g_ep_irq, ttype := USB_TRANSFER_TYPE_INTERRUPT);
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}
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[] USB.receive(tr_UsbXfer_compl(?, ?, USB_TRANSFER_STALL, g_dev_hdl, ?)) -> value tc {
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setverdict(fail, "Unexpected USB_TRANSFER_STALL on EP ", int2hex(tc.endpoint, 2));
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//mtc.stop;
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/* Submit another IN transfer */
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f_usb_submit_xfer(tc.endpoint);
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}
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[] USB.receive(tr_UsbXfer_compl(?, ?, USB_TRANSFER_ERROR, g_dev_hdl, ?)) -> value tc {
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setverdict(fail, "Unexpected USB_TRANSFER_ERROR on EP ", int2hex(tc.endpoint, 2));
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mtc.stop;
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}
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[] USB.receive(tr_UsbXfer_compl(?, ?, USB_TRANSFER_TIMED_OUT, g_dev_hdl, ?)) -> value tc {
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setverdict(fail, "Unexpected USB_TRANSFER_TIMED_OUT on EP ", int2hex(tc.endpoint, 2));
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mtc.stop;
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}
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[] USB.receive(tr_UsbXfer_compl(?, ?, USB_TRANSFER_OVERFLOW, g_dev_hdl, ?)) -> value tc {
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setverdict(fail, "Unexpected USB_TRANSFER_OVERFLOW on EP ", int2hex(tc.endpoint, 2));
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mtc.stop;
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}
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[] USB.receive(tr_UsbXfer_compl(?, ?, ?, g_dev_hdl, ?)) -> value tc {
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setverdict(fail, "Unexpected USB Endpoint ", int2hex(tc.endpoint, 2));
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mtc.stop;
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}
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[] USB.receive(tr_UsbXfer_compl(?, ?, ?, ?, ?)) -> value tc {
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setverdict(fail, "Unexpected USB Device ", tc.device_hdl);
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mtc.stop;
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}
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[] USB.receive {
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setverdict(fail, "Unexpected Message from USB");
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mtc.stop;
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}
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[] INOUT.receive(SIMTRACE_PDU:?) -> value stpdu_out {
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f_usb_submit_xfer(g_ep_out, enc_SIMTRACE_PDU(stpdu_out), tout_ms := 3000);
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}
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}
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}
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}
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}
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