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Simulate query delay; getting to a point where implementing clear/aborts makes

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sense. Probably adding too many concurance issues; need to figure out
semaphores.
This commit is contained in:
Nathan Conrad 2019-09-14 21:24:52 -04:00
parent 64bfec79b2
commit e53e9bd4f0
6 changed files with 97 additions and 35 deletions
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3
examples/device/usbtmc/src/main.c
View File

@ -29,7 +29,7 @@
#include "bsp/board.h"
#include "tusb.h"
#include "usbtmc_app.h"
//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF PROTYPES
//--------------------------------------------------------------------+
@ -60,6 +60,7 @@ int main(void)
{
tud_task(); // tinyusb device task
led_blinking_task();
usbtmc_app_task_iter();
}
return 0;

6
examples/device/usbtmc/src/usb_descriptors.c
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@ -110,10 +110,10 @@ uint8_t const * tud_hid_descriptor_report_cb(void)
USBTMC_BULK_DESCRIPTORS(/* OUT = */0x03, /* IN = */ 0x83)
#if defined(CFG_TUD_USBTMC_ENABLE_INT_EP)
// Interrupt endpoint should be 2 bytes on a FS USB link
# define USBTMC_DESC(_itfnum) \
USBTMC_DESC_MAIN(_itfnum, /* _epCount = */ 3), \
USBTMC_INT_DESCRIPTOR(/* INT ep # */ 0x84, /* epMaxSize = */ 64, /* bInterval = */16u )
USBTMC_INT_DESCRIPTOR(/* INT ep # */ 0x84, /* epMaxSize = */ 2, /* bInterval = */16u )
# define USBTMC_DESC_LEN (USBTMC_IF_DESCRIPTOR_LEN + USBTMC_BULK_DESCRIPTORS_LEN + USBTMC_INT_DESCRIPTOR_LEN)
#else
@ -248,7 +248,7 @@ uint16_t const* tud_descriptor_string_cb(uint8_t index)
}
// first byte is length (including header), second byte is string type
_desc_str[0] = (TUSB_DESC_STRING << 8 ) | (2*chr_count + 2);
_desc_str[0] = (((uint16_t)TUSB_DESC_STRING) << 8 ) | (2u*chr_count + 2u);
return _desc_str;
}

91
examples/device/usbtmc/src/usbtmc_app.c
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@ -25,6 +25,7 @@
#include <strings.h>
#include "class/usbtmc/usbtmc_device.h"
#include "bsp/board.h"
#include "main.h"
#if (USBTMC_CFG_ENABLE_488)
@ -65,9 +66,21 @@ usbtmcd_app_capabilities =
};
static const char idn[] = "TinyUSB,ModelNumber,SerialNumber,FirmwareVer\n";
static uint8_t status;
static bool queryReceived = false;
static volatile uint8_t status;
// 0=not query, 1=queried, 2=delay,set(MAV), 3=delay 4=ready?
// (to simulate delay)
static volatile uint16_t queryState = 0;
static volatile uint32_t queryDelayStart;
static volatile uint32_t bulkInStarted;
static usbtmc_msg_dev_dep_msg_in_header_t rspMsg = {
.bmTransferAttributes =
{
.EOM = 1,
.UsingTermChar = 0
}
};
bool usbtmcd_app_msgBulkOut_start(uint8_t rhport, usbtmc_msg_request_dev_dep_out const * msgHeader)
{
@ -86,7 +99,7 @@ bool usbtmcd_app_msg_data(uint8_t rhport, void *data, size_t len, bool transfer_
(void)rhport;
(void)transfer_complete;
if(transfer_complete && (len >=4) && !strncasecmp("*idn?",data,4)) {
queryReceived = true;
queryState = 1;
}
return true;
}
@ -98,47 +111,73 @@ bool usbtmcd_app_msgBulkIn_complete(uint8_t rhport)
}
static uint8_t noQueryMsg[] = "ERR: No query\n";
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)
rspMsg.header.MsgID = request->header.MsgID,
rspMsg.header.bTag = request->header.bTag,
rspMsg.header.bTagInverse = request->header.bTagInverse;
if(queryState != 0)
{
usbtmcd_transmit_dev_msg_data(rhport, &hdr, idn);
TU_ASSERT(bulkInStarted == 0);
bulkInStarted = 1;
}
else
{
hdr.TransferSize = sizeof(noQueryMsg)-1;
usbtmcd_transmit_dev_msg_data(rhport, &hdr, noQueryMsg);
rspMsg.TransferSize = sizeof(noQueryMsg)-1;
usbtmcd_transmit_dev_msg_data(rhport, &rspMsg, noQueryMsg);
}
queryReceived = false;
// Always return true indicating not to stall the EP.
return true;
}
void usbtmc_app_task_iter(void) {
uint8_t const rhport = 0;
switch(queryState) {
case 1:
queryDelayStart = board_millis();
queryState = 2;
break;
case 2:
if( (board_millis() - queryDelayStart) > 1000u) {
queryDelayStart = board_millis();
queryState=3;
status |= 0x10u; // MAV
}
break;
case 3:
if( (board_millis() - queryDelayStart) > 1000u) {
queryState = 4;
}
break;
case 4: // time to transmit;
if(bulkInStarted) {
queryState = 0;
bulkInStarted = 0;
rspMsg.TransferSize = sizeof(idn)-1;
usbtmcd_transmit_dev_msg_data(rhport, &rspMsg, idn);
status &= ~(0x10u); // MAV
}
break;
}
}
// 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)
uint8_t usbtmcd_app_get_stb(uint8_t rhport, uint8_t *tmcResult)
{
(void)rhport;
*rspResult = USBTMC_STATUS_SUCCESS;
*tmcResult = USBTMC_STATUS_SUCCESS;
// Increment status so that we see different results on each read...
status++;
return status;
}
bool usbtmcd_app_indicator_pluse(uint8_t rhport, tusb_control_request_t const * msg)
bool usbtmcd_app_indicator_pluse(uint8_t rhport, tusb_control_request_t const * msg, uint8_t *tmcResult)
{
(void)rhport;
(void)msg;
led_indicator_pulse();
*tmcResult = USBTMC_STATUS_SUCCESS;
return true;
}

7
examples/device/usbtmc/src/usbtmc_app.h Normal file
View File

@ -0,0 +1,7 @@
#ifndef USBTMC_APP_H
#define USBTMC_APP_H
void usbtmc_app_task_iter(void);
#endif

20
src/class/usbtmc/usbtmc_device.c
View File

@ -379,9 +379,11 @@ bool usbtmcd_control_request(uint8_t rhport, tusb_control_request_t const * requ
#if (USBTMC_CFG_ENABLE_488)
ushort bTag;
#endif
// We only handle class requests.
// We only handle class requests, IN direction.
if(request->bmRequestType_bit.type != TUSB_REQ_TYPE_CLASS)
{
return false;
}
switch(request->bRequest)
{
@ -390,27 +392,38 @@ bool usbtmcd_control_request(uint8_t rhport, tusb_control_request_t const * requ
case USBTMC_bREQUEST_CHECK_ABORT_BULK_OUT_STATUS:
case USBTMC_bREQUEST_INITIATE_ABORT_BULK_IN:
case USBTMC_bREQUEST_CHECK_ABORT_BULK_IN_STATUS:
TU_VERIFY(request->bmRequestType == 0xA2); // in,class,EP
TU_VERIFY(false);
break;
case USBTMC_bREQUEST_INITIATE_CLEAR:
case USBTMC_bREQUEST_CHECK_CLEAR_STATUS:
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(false);
break;
case USBTMC_bREQUEST_GET_CAPABILITIES:
TU_VERIFY(request->bmRequestType == 0xA1);
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(request->wValue == 0x0000);
TU_VERIFY(request->wIndex == usbtmc_state.itf_id);
TU_VERIFY(request->wLength == sizeof(usbtmcd_app_capabilities));
TU_VERIFY(tud_control_xfer(rhport, request, (void*)&usbtmcd_app_capabilities, sizeof(usbtmcd_app_capabilities)));
return true;
// USBTMC Optional Requests
case USBTMC_bREQUEST_INDICATOR_PULSE: // Optional
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(usbtmcd_app_capabilities.bmIntfcCapabilities.supportsIndicatorPulse);
TU_VERIFY(usbtmcd_app_indicator_pluse(rhport, request));
uint8_t tmcResult;
TU_VERIFY(usbtmcd_app_indicator_pluse(rhport, request, &tmcResult));
TU_VERIFY(tud_control_xfer(rhport, request, (void*)&tmcResult, sizeof(tmcResult)));
return true;
#if (USBTMC_CFG_ENABLE_488)
// USB488 required requests
case USBTMC488_bREQUEST_READ_STATUS_BYTE:
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
bTag = request->wValue & 0x7F;
TU_VERIFY(request->bmRequestType == 0xA1);
@ -444,6 +457,7 @@ bool usbtmcd_control_request(uint8_t rhport, tusb_control_request_t const * requ
case USBTMC488_bREQUEST_REN_CONTROL:
case USBTMC488_bREQUEST_GO_TO_LOCAL:
case USBTMC488_bREQUEST_LOCAL_LOCKOUT:
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(false);
return false;
#endif

5
src/class/usbtmc/usbtmc_device.h
View File

@ -64,10 +64,11 @@ bool usbtmcd_app_msgBulkIn_request(uint8_t rhport, usbtmc_msg_request_dev_dep_in
bool usbtmcd_app_msgBulkIn_complete(uint8_t rhport);
TU_ATTR_WEAK bool usbtmcd_app_indicator_pluse(uint8_t rhport, tusb_control_request_t const * msg);
// Indicator pulse should be 0.5 to 1.0 seconds long
TU_ATTR_WEAK bool usbtmcd_app_indicator_pluse(uint8_t rhport, tusb_control_request_t const * msg, uint8_t *tmcResult);
#if (USBTMC_CFG_ENABLE_488)
uint8_t usbtmcd_app_get_stb(uint8_t rhport, uint8_t *rspResult);
uint8_t usbtmcd_app_get_stb(uint8_t rhport, uint8_t *tmcResult);
TU_ATTR_WEAK bool usbtmcd_app_msg_trigger(uint8_t rhport, usbtmc_msg_generic_t* msg);
//TU_ATTR_WEAK bool usbtmcd_app_go_to_local(uint8_t rhport);
#endif