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espressif_tinyusb
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This commit is contained in:
Nathan Conrad 2019-09-17 13:24:43 -04:00
parent e234998c6c
commit 45871001e6
2 changed files with 220 additions and 57 deletions
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9
src/class/usbtmc/usbtmc.h
View File

@ -228,6 +228,15 @@ typedef struct TU_ATTR_PACKED
TU_VERIFY_STATIC(sizeof(usbtmc_get_clear_status_rsp_t) == 2u, "struct wrong length");
// Used for both abort bulk IN and bulk OUT
typedef struct TU_ATTR_PACKED
{
uint8_t USBTMC_status;
uint8_t bTag;
} usbtmc_initiate_abort_rsp_t;
TU_VERIFY_STATIC(sizeof(usbtmc_get_clear_status_rsp_t) == 2u, "struct wrong length");
typedef struct TU_ATTR_PACKED
{
uint8_t USBTMC_status; ///< usbtmc_status_enum

268
src/class/usbtmc/usbtmc_device.c
View File

@ -8,7 +8,7 @@
/*
* The MIT License (MIT)
*
* Copyright (c) 2019 N Conrad
* Copyright (c) 2019 Nathan 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
@ -33,31 +33,53 @@
#include "tusb_option.h"
// We don't do any cross-task anything here (everything is in tud or interrupt context).
// You must ensure thread safety in your own app.
// Synchronization is needed in some spots.
// These functions should NOT be called from interrupts.
/* The library is designed that its functions can be called by any user task, with need for
* additional locking. In the case of "no OS", this task is never preempted other than by
* interrupts, and the USBTMC code isn't called by interrupts, so all is OK. In the case
* of an OS, this class driver uses the OSAL to perform locking. The code uses a single lock
* and does not call outside of this class with a lock held, so deadlocks won't happen.
*
* This module's application-facing functions are not reentrant. The application must
* only call them from a single thread (or implement its own locking).
*/
//Limitations (not planned to be implemented):
// "vendor-specific" commands are not handled
//Limitations:
// "vendor-specific" commands are not handled.
// Dealing with "termchar" must be handled by the application layer,
// though additional error checking is does in this module.
// talkOnly and listenOnly are NOT supported. They're no permitted
// in USB488, anyway.
/* Supported:
*
* Notification pulse
* Trigger
* Read status byte (both by interrupt endpoint and control message)
*
*/
// TODO:
// USBTMC 3.2.2 error conditions not strictly followed
// No local lock-out, REN, or GTL.
// Cannot handle clear.
// Not all "capabilities" supported
// Clear message available status byte at the correct time? (488 4.3.1.3)
// Split transfers
// Abort bulk in/out
// No CLEAR_FEATURE/HALT no EP (yet)
// No aborting transfers.
#if (TUSB_OPT_DEVICE_ENABLED && CFG_TUD_USBTMC)
#include <string.h>
#include "usbtmc.h"
#include "usbtmc_device.h"
#include "device/dcd.h"
#include "device/usbd.h"
#include "uart_util.h"
static char logMsg[150];
// FIXME: I shouldn't need to include _pvt headers.
#include "device/usbd_pvt.h"
@ -70,21 +92,31 @@ typedef enum
STATE_IDLE,
STATE_RCV,
STATE_TX_REQUESTED,
STATE_TX_INITIATED
STATE_TX_INITIATED,
STATE_CLEARING,
STATE_ABORTING_BULK_IN,
STATE_ABORTING_BULK_OUT,
STATE_NUM_STATES
} usbtmcd_state_enum;
typedef struct
{
usbtmcd_state_enum state;
volatile usbtmcd_state_enum state;
uint8_t itf_id;
uint8_t ep_bulk_in;
uint8_t ep_bulk_out;
uint8_t ep_int_in;
uint8_t ep_bulk_in_buf[64];
uint8_t ep_bulk_out_buf[64];
uint8_t lastTag;
// IN buffer is only used for first packet, not the remainder
// in order to deal with prepending header
uint8_t ep_bulk_in_buf[USBTMCD_MAX_PACKET_SIZE];
// OUT buffer receives one packet at a time
uint8_t ep_bulk_out_buf[USBTMCD_MAX_PACKET_SIZE];
uint32_t transfer_size_remaining; // also used for requested length for bulk IN.
uint8_t lastBulkOutTag; // used for aborts (mostly)
uint8_t lastBulkInTag; // used for aborts (mostly)
uint32_t transfer_size_remaining;
uint8_t const * devInBuffer;
} usbtmc_interface_state_t;
@ -97,39 +129,63 @@ static usbtmc_interface_state_t usbtmc_state =
.ep_int_in = 0
};
// We want everything to fit nicely in a single packet, so lets require EP size >32
// I'm not sure if this is really necessary, though.
// We need all headers to fit in a single packet in this implementation.
TU_VERIFY_STATIC(USBTMCD_MAX_PACKET_SIZE >= 32u,"USBTMC dev EP packet size too small");
TU_VERIFY_STATIC(
(sizeof(usbtmc_state.ep_bulk_in_buf) % USBTMCD_MAX_PACKET_SIZE) == 0,
"packet buffer must be a multiple of the packet size");
static bool handle_devMsgOutStart(uint8_t rhport, void *data, size_t len);
static bool handle_devMsgOut(uint8_t rhport, void *data, size_t len, size_t packetLen);
osal_mutex_def_t usbtmcLockBuffer;
static osal_mutex_t usbtmcLock;
// Our own private lock, mostly for the state variable.
#define criticalEnter() do {osal_mutex_lock(usbtmcLock,OSAL_TIMEOUT_WAIT_FOREVER); } while (0)
#define criticalLeave() do {osal_mutex_unlock(usbtmcLock); } while (0)
// called from app
// We keep a reference to the buffer, so it MUST not change until the app is
// notified that the transfer is complete.
// length of data is specified in the hdr.
// We can't just send the whole thing at once because we need to concatanate the
// header with the data.
bool usbtmcd_transmit_dev_msg_data(
uint8_t rhport,
usbtmc_msg_dev_dep_msg_in_header_t const * hdr,
const void *data)
const void * data, size_t len,
bool usingTermChar)
{
TU_ASSERT(usbtmc_state.state == STATE_TX_REQUESTED);
const unsigned int txBufLen = sizeof(usbtmc_state.ep_bulk_in_buf);
#ifndef NDEBUG
TU_ASSERT(hdr->TransferSize > 0u);
if(hdr->bmTransferAttributes.UsingTermChar)
TU_ASSERT(len > 0u);
TU_ASSERT(len <= usbtmc_state.transfer_size_remaining);
if(usingTermChar)
{
TU_ASSERT(usbtmcd_app_capabilities.bmDevCapabilities.canEndBulkInOnTermChar);
TU_ASSERT(termCharRequested);
TU_ASSERT(((uint8_t*)data)[hdr->TransferSize-1] == termChar);
TU_ASSERT(((uint8_t*)data)[len-1] == termChar);
}
#endif
TU_VERIFY(usbtmc_state.state == STATE_TX_REQUESTED);
usbtmc_msg_dev_dep_msg_in_header_t *hdr = (usbtmc_msg_dev_dep_msg_in_header_t*)usbtmc_state.ep_bulk_in_buf;
memset(hdr, 0x00, sizeof(*hdr));
hdr->header.MsgID = USBTMC_MSGID_DEV_DEP_MSG_IN;
hdr->header.bTag = usbtmc_state.lastBulkInTag;
hdr->header.bTagInverse = (uint8_t)~(usbtmc_state.lastBulkInTag);
hdr->TransferSize = len;
hdr->bmTransferAttributes.EOM = 1u;
hdr->bmTransferAttributes.UsingTermChar = usingTermChar;
// Copy in the header
memcpy(usbtmc_state.ep_bulk_in_buf, hdr, sizeof(*hdr));
size_t packetLen = sizeof(*hdr);
// Single-packet transfer
if((packetLen + hdr->TransferSize) <= USBTMCD_MAX_PACKET_SIZE)
// If it fits in a single trasnmission:
if((packetLen + hdr->TransferSize) <= txBufLen)
{
memcpy((uint8_t*)(usbtmc_state.ep_bulk_in_buf) + packetLen, data, hdr->TransferSize);
packetLen = (uint16_t)(packetLen+ hdr->TransferSize);
@ -142,15 +198,23 @@ bool usbtmcd_transmit_dev_msg_data(
usbtmc_state.transfer_size_remaining = 0;
usbtmc_state.devInBuffer = NULL;
}
else
else /* partial packet */
{
memcpy((uint8_t*)(usbtmc_state.ep_bulk_in_buf) + packetLen, data, USBTMCD_MAX_PACKET_SIZE - packetLen);
usbtmc_state.transfer_size_remaining = hdr->TransferSize - (USBTMCD_MAX_PACKET_SIZE - packetLen);
usbtmc_state.devInBuffer += (USBTMCD_MAX_PACKET_SIZE - packetLen);
packetLen = USBTMCD_MAX_PACKET_SIZE;
memcpy((uint8_t*)(usbtmc_state.ep_bulk_in_buf) + packetLen, data, txBufLen - packetLen);
usbtmc_state.devInBuffer += txBufLen - packetLen;
usbtmc_state.transfer_size_remaining = hdr->TransferSize - (txBufLen - packetLen);
packetLen = txBufLen;
}
usbtmc_state.state = STATE_TX_INITIATED;
TU_VERIFY( usbd_edpt_xfer(rhport, usbtmc_state.ep_bulk_in, usbtmc_state.ep_bulk_in_buf,(uint16_t)packetLen));
criticalEnter();
{
TU_VERIFY(usbtmc_state.state == STATE_TX_REQUESTED);
usbtmc_state.state = STATE_TX_INITIATED;
}
criticalLeave();
TU_VERIFY( usbd_edpt_xfer(rhport, usbtmc_state.ep_bulk_in, usbtmc_state.ep_bulk_in_buf, (uint16_t)packetLen));
return true;
}
@ -158,12 +222,17 @@ void usbtmcd_init(void)
{
#ifndef NDEBUG
# if USBTMC_CFG_ENABLE_488
if(usbtmcd_app_capabilities.bmIntfcCapabilities488.supportsTrigger)
TU_ASSERT(&usbtmcd_app_msg_trigger != NULL,);
if(usbtmcd_app_capabilities.bmIntfcCapabilities488.supportsTrigger)
TU_ASSERT(&usbtmcd_app_msg_trigger != NULL,);
// Per USB488 spec: table 8
TU_ASSERT(!usbtmcd_app_capabilities.bmIntfcCapabilities.listenOnly,);
TU_ASSERT(!usbtmcd_app_capabilities.bmIntfcCapabilities.talkOnly,);
# endif
if(usbtmcd_app_capabilities.bmIntfcCapabilities.supportsIndicatorPulse)
TU_ASSERT(&usbtmcd_app_indicator_pluse != NULL,);
#endif
usbtmcLock = osal_mutex_create(&usbtmcLockBuffer);
}
bool usbtmcd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length)
@ -226,10 +295,17 @@ bool usbtmcd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16
#ifndef NDEBUG
TU_ASSERT(usbtmc_state.ep_bulk_in != 0);
TU_ASSERT(usbtmc_state.ep_bulk_out != 0);
if (itf_desc->bNumEndpoints == 2) {
if (itf_desc->bNumEndpoints == 2)
{
TU_ASSERT(usbtmc_state.ep_int_in == 0);
}
else if (itf_desc->bNumEndpoints == 2)
else if (itf_desc->bNumEndpoints == 3)
{
TU_ASSERT(usbtmc_state.ep_int_in != 0);
}
if(usbtmcd_app_capabilities.bmIntfcCapabilities488.is488_2 ||
usbtmcd_app_capabilities.bmDevCapabilities488.SR1)
{
TU_ASSERT(usbtmc_state.ep_int_in != 0);
}
@ -286,12 +362,22 @@ static bool handle_devMsgIn(uint8_t rhport, void *data, size_t len)
{
TU_VERIFY(len == sizeof(usbtmc_msg_request_dev_dep_in));
usbtmc_msg_request_dev_dep_in *msg = (usbtmc_msg_request_dev_dep_in*)data;
TU_VERIFY(usbtmc_state.state == STATE_IDLE);
usbtmc_state.state = STATE_TX_REQUESTED;
usbtmc_state.transfer_size_remaining = msg->TransferSize;
sprintf(logMsg," handle_devMsgIn len=%ul\r\n",len);
uart_tx_str_sync(logMsg);
criticalEnter();
{
TU_VERIFY(usbtmc_state.state == STATE_IDLE);
usbtmc_state.state = STATE_TX_REQUESTED;
usbtmc_state.lastBulkInTag = msg->header.bTag;
usbtmc_state.transfer_size_remaining = msg->TransferSize;
}
criticalLeave();
termCharRequested = msg->bmTransferAttributes.TermCharEnabled;
termChar = msg->TermChar;
if(termCharRequested)
TU_VERIFY(usbtmcd_app_capabilities.bmDevCapabilities.canEndBulkInOnTermChar);
@ -302,8 +388,17 @@ static bool handle_devMsgIn(uint8_t rhport, void *data, size_t len)
bool usbtmcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes)
{
TU_VERIFY(result == XFER_RESULT_SUCCESS);
uart_tx_str_sync("USBTMC Xfer CB" );
sprintf(logMsg," STATE=%lu ", (uint32_t)usbtmc_state.state);
uart_tx_str_sync(logMsg);
if(usbtmc_state.state == STATE_CLEARING) {
return true; /* I think we can ignore everything here */
}
if(ep_addr == usbtmc_state.ep_bulk_out)
{
uart_tx_str_sync("OUT");
switch(usbtmc_state.state)
{
case STATE_IDLE:
@ -312,15 +407,19 @@ bool usbtmcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint
uint8_t invInvTag = (uint8_t)~(msg->header.bTagInverse);
TU_VERIFY(msg->header.bTag == invInvTag);
TU_VERIFY(msg->header.bTag != 0x00);
usbtmc_state.lastTag = msg->header.bTag;
sprintf(logMsg," type=%lu\r\n",(uint32_t)msg->header.MsgID);
uart_tx_str_sync(logMsg);
switch(msg->header.MsgID) {
case USBTMC_MSGID_DEV_DEP_MSG_OUT:
TU_VERIFY(handle_devMsgOutStart(rhport, msg, xferred_bytes));
TU_VERIFY(usbd_edpt_xfer(rhport, usbtmc_state.ep_bulk_out, usbtmc_state.ep_bulk_out_buf, USBTMCD_MAX_PACKET_SIZE));
usbtmc_state.lastBulkOutTag = msg->header.bTag;
break;
case USBTMC_MSGID_DEV_DEP_MSG_IN:
uart_tx_sync("Handling msg in req\r\n", 21);
TU_VERIFY(handle_devMsgIn(rhport, msg, xferred_bytes));
break;
@ -336,6 +435,7 @@ bool usbtmcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint
case USBTMC_MSGID_VENDOR_SPECIFIC_MSG_OUT:
case USBTMC_MSGID_VENDOR_SPECIFIC_IN:
default:
TU_VERIFY(false);
return false;
}
@ -347,12 +447,22 @@ bool usbtmcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint
case STATE_TX_REQUESTED:
case STATE_TX_INITIATED:
case STATE_ABORTING_BULK_IN:
case STATE_ABORTING_BULK_OUT:
default:
if(msg == NULL)
sprintf(logMsg," Unknown received control?\r\n ");
else {
sprintf(logMsg," msg=%lu\r\n ", (uint32_t)msg->header.MsgID);
}
uart_tx_str_sync(logMsg);
TU_VERIFY(false);
}
}
else if(ep_addr == usbtmc_state.ep_bulk_in)
{
sprintf(logMsg,"IN\r\n");
uart_tx_str_sync(logMsg);
TU_ASSERT(usbtmc_state.state == STATE_TX_INITIATED);
if(usbtmc_state.transfer_size_remaining == 0)
{
@ -360,14 +470,14 @@ bool usbtmcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint
TU_VERIFY(usbtmcd_app_msgBulkIn_complete(rhport));
TU_VERIFY( usbd_edpt_xfer(rhport, usbtmc_state.ep_bulk_out, usbtmc_state.ep_bulk_out_buf, USBTMCD_MAX_PACKET_SIZE));
}
else if(usbtmc_state.transfer_size_remaining >= USBTMCD_MAX_PACKET_SIZE)
else if(usbtmc_state.transfer_size_remaining > sizeof(usbtmc_state.devInBuffer))
{
memcpy(usbtmc_state.ep_bulk_in_buf, usbtmc_state.devInBuffer, USBTMCD_MAX_PACKET_SIZE);
usbtmc_state.devInBuffer += USBTMCD_MAX_PACKET_SIZE;
usbtmc_state.transfer_size_remaining -= USBTMCD_MAX_PACKET_SIZE;
TU_VERIFY( usbd_edpt_xfer(rhport, usbtmc_state.ep_bulk_in, usbtmc_state.ep_bulk_in_buf,USBTMCD_MAX_PACKET_SIZE));
memcpy(usbtmc_state.ep_bulk_in_buf, usbtmc_state.devInBuffer, sizeof(usbtmc_state.ep_bulk_in_buf));
usbtmc_state.devInBuffer += sizeof(usbtmc_state.devInBuffer);
usbtmc_state.transfer_size_remaining -= sizeof(usbtmc_state.devInBuffer);
TU_VERIFY( usbd_edpt_xfer(rhport, usbtmc_state.ep_bulk_in, usbtmc_state.ep_bulk_in_buf,sizeof(usbtmc_state.devInBuffer)));
}
else // short packet
else // last packet
{
size_t packetLen = usbtmc_state.transfer_size_remaining;
memcpy(usbtmc_state.ep_bulk_in_buf, usbtmc_state.devInBuffer, usbtmc_state.transfer_size_remaining);
@ -401,6 +511,7 @@ bool usbtmcd_control_request(uint8_t rhport, tusb_control_request_t const * requ
(request->bRequest == TUSB_REQ_CLEAR_FEATURE) &&
(request->wValue == TUSB_REQ_FEATURE_EDPT_HALT))
{
uart_tx_str_sync("feature clear\r\n");
if((request->wIndex) == usbtmc_state.ep_bulk_out)
{
usmtmcd_app_bulkOut_clearFeature(rhport);
@ -426,23 +537,48 @@ bool usbtmcd_control_request(uint8_t rhport, tusb_control_request_t const * requ
// USBTMC required requests
case USBTMC_bREQUEST_INITIATE_ABORT_BULK_OUT:
case USBTMC_bREQUEST_CHECK_ABORT_BULK_OUT_STATUS:
case USBTMC_bREQUEST_INITIATE_ABORT_BULK_IN:
{
TU_VERIFY(request->bmRequestType == 0xA2); // in,class,EP
TU_VERIFY(request->wLength == 1u);
tmcStatusCode = USBTMC_STATUS_FAILED;
usbd_edpt_xfer(rhport, 0u, (void*)&tmcStatusCode,sizeof(tmcStatusCode));
return true;
}
case USBTMC_bREQUEST_CHECK_ABORT_BULK_IN_STATUS:
{
TU_VERIFY(request->bmRequestType == 0xA2); // in,class,EP
TU_VERIFY(request->wLength == 1u);
tmcStatusCode = USBTMC_STATUS_FAILED;
usbd_edpt_xfer(rhport, 0u, (void*)&tmcStatusCode,sizeof(tmcStatusCode));
return true;
}
{
TU_VERIFY(request->bmRequestType == 0xA2); // in,class,EP
TU_VERIFY(request->wLength == 1u);
usbtmc_get_clear_status_rsp_t clearStatusRsp = {0};
tmcStatusCode = USBTMC_STATUS_FAILED;
usbd_edpt_xfer(rhport, 0u, (void*)&tmcStatusCode,sizeof(tmcStatusCode));
return true;
}
case USBTMC_bREQUEST_INITIATE_ABORT_BULK_IN:
{
usbtmc_initiate_abort_rsp_t rsp = {0};
uart_tx_str_sync("init abort bulk in\r\n");
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(request->wLength == sizeof(tmcStatusCode));
TU_VERIFY(request->wIndex == usbtmc_state.ep_int_in);
// wValue is the requested bTag to abort
usbtmc_state.transfer_size_remaining = 0;
usbtmc_state.state = STATE_ABORTING_BULK_IN;
TU_VERIFY(usbtmcd_app_initiate_clear(rhport, &tmcStatusCode));
TU_VERIFY(tud_control_xfer(rhport, request, (void*)&tmcStatusCode,sizeof(tmcStatusCode)));
return true;
}
case USBTMC_bREQUEST_INITIATE_CLEAR:
{
uart_tx_str_sync("init clear\r\n");
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(request->wLength == sizeof(tmcStatusCode));
// After receiving an INITIATE_CLEAR request, the device must Halt the Bulk-OUT endpoint, queue the
// control endpoint response shown in Table 31, and clear all input buffers and output buffers.
usbd_edpt_stall(rhport, usbtmc_state.ep_bulk_out);
usbtmc_state.transfer_size_remaining = 0;
usbtmc_state.state = STATE_CLEARING;
TU_VERIFY(usbtmcd_app_initiate_clear(rhport, &tmcStatusCode));
TU_VERIFY(tud_control_xfer(rhport, request, (void*)&tmcStatusCode,sizeof(tmcStatusCode)));
return true;
@ -450,17 +586,31 @@ bool usbtmcd_control_request(uint8_t rhport, tusb_control_request_t const * requ
case USBTMC_bREQUEST_CHECK_CLEAR_STATUS:
{
usbtmc_get_clear_status_rsp_t clearStatusRsp = {0};
uart_tx_str_sync("check clear\r\n");
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
usbtmc_get_clear_status_rsp_t clearStatusRsp = {0};
TU_VERIFY(request->wLength == sizeof(clearStatusRsp));
TU_VERIFY(usbtmcd_app_get_clear_status(rhport, &clearStatusRsp));
if(usbd_edpt_busy(rhport, usbtmc_state.ep_bulk_in))
{
// Stuff stuck in TX buffer?
clearStatusRsp.bmClear.BulkInFifoBytes = 1;
clearStatusRsp.USBTMC_status = USBTMC_STATUS_PENDING;
}
else
{
// Let app check if it's clear
TU_VERIFY(usbtmcd_app_get_clear_status(rhport, &clearStatusRsp));
}
if(clearStatusRsp.USBTMC_status == USBTMC_STATUS_SUCCESS)
usbtmc_state.state = STATE_IDLE;
TU_VERIFY(tud_control_xfer(rhport, request, (void*)&clearStatusRsp,sizeof(clearStatusRsp)));
return true;
}
case USBTMC_bREQUEST_GET_CAPABILITIES:
{
uart_tx_str_sync("get capabilities\r\n");
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(request->wLength == sizeof(usbtmcd_app_capabilities));
TU_VERIFY(tud_control_xfer(rhport, request, (void*)&usbtmcd_app_capabilities, sizeof(usbtmcd_app_capabilities)));
@ -470,6 +620,7 @@ bool usbtmcd_control_request(uint8_t rhport, tusb_control_request_t const * requ
case USBTMC_bREQUEST_INDICATOR_PULSE: // Optional
{
uart_tx_str_sync("indicate\r\n");
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(request->wLength == sizeof(tmcStatusCode));
TU_VERIFY(usbtmcd_app_capabilities.bmIntfcCapabilities.supportsIndicatorPulse);
@ -482,6 +633,7 @@ bool usbtmcd_control_request(uint8_t rhport, tusb_control_request_t const * requ
// USB488 required requests
case USBTMC488_bREQUEST_READ_STATUS_BYTE:
{
uart_tx_str_sync("read stb\r\n");
usbtmc_read_stb_rsp_488_t rsp;
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(request->wLength == sizeof(rsp)); // in,class,interface
@ -520,6 +672,7 @@ bool usbtmcd_control_request(uint8_t rhport, tusb_control_request_t const * requ
case USBTMC488_bREQUEST_GO_TO_LOCAL:
case USBTMC488_bREQUEST_LOCAL_LOCKOUT:
{
uart_tx_str_sync("Unsupported REN/GTL/LLO\r\n");
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(false);
return false;
@ -527,6 +680,7 @@ bool usbtmcd_control_request(uint8_t rhport, tusb_control_request_t const * requ
#endif
default:
uart_tx_str_sync("Default CTRL handler\r\n");
TU_VERIFY(false);
return false;
}