Add usbtmc class driver.

1 files changed, 133 insertions, 0 deletions

diff --git a/examples/device/usbtmc/src/usbtmc_app.c b/examples/device/usbtmc/src/usbtmc_app.c
new file mode 100644
index 000000000..515c2a486
--- /dev/null
+++ b/examples/device/usbtmc/src/usbtmc_app.c
@@ -0,0 +1,133 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 N Conrad
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#include <strings.h>
+#include "class/usbtmc/usbtmc_device.h"
+
+#if (USBTMC_CFG_ENABLE_488)
+usbtmc_response_capabilities_488_t const
+#else
+usbtmc_response_capabilities_t const
+#endif
+usbtmcd_app_capabilities  =
+{
+    .USBTMC_status = USBTMC_STATUS_SUCCESS,
+    .bcdUSBTMC = USBTMC_VERSION,
+    .bmIntfcCapabilities =
+    {
+        .listenOnly = 0,
+        .talkOnly = 0,
+        .supportsIndicatorPulse = 0
+    },
+    .bmDevCapabilities = {
+        .canEndBulkInOnTermChar = 0
+    },
+
+#if (USBTMC_CFG_ENABLE_488)
+    .bcdUSB488 = USBTMC_488_VERSION,
+    .bmIntfcCapabilities488 =
+    {
+        .supportsTrigger = 0,
+        .supportsREN_GTL_LLO = 0,
+        .is488_2 = 1
+    },
+    .bmDevCapabilities488 =
+    {
+      .SCPI = 1,
+      .SR1 = 0,
+      .RL1 = 0,
+      .DT1 =0,
+    }
+#endif
+};
+
+static const char idn[] = "TinyUSB,ModelNumber,SerialNumber,FirmwareVer";
+static uint8_t status;
+static bool queryReceived = false;
+
+
+bool usbtmcd_app_msgBulkOut_start(usbtmc_msg_request_dev_dep_out const * msgHeader)
+{
+  (void)msgHeader;
+  return true;
+}
+
+
+bool usbtmcd_app_msg_data(void *data, size_t len, bool transfer_complete)
+{
+  (void)transfer_complete;
+  if(transfer_complete && (len >=4) && !strncasecmp("*idn?",data,4)) {
+    queryReceived = true;
+  }
+  return true;
+}
+
+bool usbtmcd_app_msgBulkIn_complete(uint8_t rhport)
+{
+  (void)rhport;
+  return true;
+}
+
+static uint8_t noQueryMsg[] = "ERR: No query";
+bool usbtmcd_app_msgBulkIn_request(uint8_t rhport, usbtmc_msg_request_dev_dep_in const * request)
+{
+  usbtmc_msg_dev_dep_msg_in_header_t hdr = {
+      .header =
+      {
+          .MsgID = request->header.MsgID,
+          .bTag = request->header.bTag,
+          .bTagInverse = request->header.bTagInverse
+      },
+      .TransferSize = sizeof(idn)-1,
+      .bmTransferAttributes =
+      {
+        .EOM = 1,
+        .UsingTermChar = 0
+      }
+  };
+  if(queryReceived)
+  {
+    usbtmcd_transmit_dev_msg_data(rhport, &hdr, idn);
+  }
+  else
+  {
+    hdr.TransferSize = sizeof(noQueryMsg)-1;
+    usbtmcd_transmit_dev_msg_data(rhport, &hdr, noQueryMsg);
+  }
+  queryReceived = false;
+  return true;
+}
+
+// Return status byte, but put the transfer result status code in the rspResult argument.
+uint8_t usbtmcd_app_get_stb(uint8_t rhport, uint8_t *rspResult)
+{
+  (void)rhport;
+  *rspResult = USBTMC_STATUS_SUCCESS;
+  // Increment status so that we see different results on each read...
+  status++;
+
+  return status;
+}
+