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update usbtmc open()

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hathach 2020-05-28 12:13:48 +07:00
parent 13860e9f94
commit bec5b5f9da
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GPG Key ID: 2FA891220FBFD581
2 changed files with 29 additions and 26 deletions
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43
src/class/usbtmc/usbtmc_device.c
View File

@ -260,37 +260,39 @@ void usbtmcd_init_cb(void)
usbtmcLock = osal_mutex_create(&usbtmcLockBuffer);
}
bool usbtmcd_open_cb(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length)
uint16_t usbtmcd_open_cb(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len)
{
(void)rhport;
uint16_t drv_len;
uint8_t const * p_desc;
uint8_t found_endpoints = 0;
TU_VERIFY(itf_desc->bInterfaceClass == TUD_USBTMC_APP_CLASS);
TU_VERIFY(itf_desc->bInterfaceSubClass == TUD_USBTMC_APP_SUBCLASS);
TU_VERIFY(itf_desc->bInterfaceClass == TUD_USBTMC_APP_CLASS , 0);
TU_VERIFY(itf_desc->bInterfaceSubClass == TUD_USBTMC_APP_SUBCLASS, 0);
#ifndef NDEBUG
// Only 2 or 3 endpoints are allowed for USBTMC.
TU_ASSERT((itf_desc->bNumEndpoints == 2) || (itf_desc->bNumEndpoints ==3));
TU_ASSERT((itf_desc->bNumEndpoints == 2) || (itf_desc->bNumEndpoints ==3), 0);
#endif
TU_ASSERT(usbtmc_state.state == STATE_CLOSED);
TU_ASSERT(usbtmc_state.state == STATE_CLOSED, 0);
// Interface
(*p_length) = 0u;
drv_len = 0u;
p_desc = (uint8_t const *) itf_desc;
usbtmc_state.itf_id = itf_desc->bInterfaceNumber;
usbtmc_state.rhport = rhport;
while (found_endpoints < itf_desc->bNumEndpoints)
while (found_endpoints < itf_desc->bNumEndpoints && drv_len <= max_len)
{
if ( TUSB_DESC_ENDPOINT == p_desc[DESC_OFFSET_TYPE])
{
tusb_desc_endpoint_t const *ep_desc = (tusb_desc_endpoint_t const *)p_desc;
switch(ep_desc->bmAttributes.xfer) {
case TUSB_XFER_BULK:
TU_ASSERT(ep_desc->wMaxPacketSize.size == USBTMCD_MAX_PACKET_SIZE);
TU_ASSERT(ep_desc->wMaxPacketSize.size == USBTMCD_MAX_PACKET_SIZE, 0);
if (tu_edpt_dir(ep_desc->bEndpointAddress) == TUSB_DIR_IN)
{
usbtmc_state.ep_bulk_in = ep_desc->bEndpointAddress;
@ -301,45 +303,46 @@ bool usbtmcd_open_cb(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uin
break;
case TUSB_XFER_INTERRUPT:
#ifndef NDEBUG
TU_ASSERT(tu_edpt_dir(ep_desc->bEndpointAddress) == TUSB_DIR_IN);
TU_ASSERT(usbtmc_state.ep_int_in == 0);
TU_ASSERT(tu_edpt_dir(ep_desc->bEndpointAddress) == TUSB_DIR_IN, 0);
TU_ASSERT(usbtmc_state.ep_int_in == 0, 0);
#endif
usbtmc_state.ep_int_in = ep_desc->bEndpointAddress;
break;
default:
TU_ASSERT(false);
TU_ASSERT(false, 0);
}
TU_VERIFY( usbd_edpt_open(rhport, ep_desc));
TU_ASSERT( usbd_edpt_open(rhport, ep_desc), 0);
found_endpoints++;
}
(*p_length) = (uint8_t)((*p_length) + p_desc[DESC_OFFSET_LEN]);
p_desc = tu_desc_next(p_desc);
drv_len += tu_desc_len(p_desc);
p_desc = tu_desc_next(p_desc);
}
// bulk endpoints are required, but interrupt IN is optional
#ifndef NDEBUG
TU_ASSERT(usbtmc_state.ep_bulk_in != 0);
TU_ASSERT(usbtmc_state.ep_bulk_out != 0);
TU_ASSERT(usbtmc_state.ep_bulk_in != 0, 0);
TU_ASSERT(usbtmc_state.ep_bulk_out != 0, 0);
if (itf_desc->bNumEndpoints == 2)
{
TU_ASSERT(usbtmc_state.ep_int_in == 0);
TU_ASSERT(usbtmc_state.ep_int_in == 0, 0);
}
else if (itf_desc->bNumEndpoints == 3)
{
TU_ASSERT(usbtmc_state.ep_int_in != 0);
TU_ASSERT(usbtmc_state.ep_int_in != 0, 0);
}
#if (CFG_TUD_USBTMC_ENABLE_488)
if(usbtmc_state.capabilities->bmIntfcCapabilities488.is488_2 ||
usbtmc_state.capabilities->bmDevCapabilities488.SR1)
{
TU_ASSERT(usbtmc_state.ep_int_in != 0);
TU_ASSERT(usbtmc_state.ep_int_in != 0, 0);
}
#endif
#endif
atomicChangeState(STATE_CLOSED, STATE_NAK);
tud_usbtmc_open_cb(itf_desc->iInterface);
return true;
return drv_len;
}
// Tell USBTMC class to set its bulk-in EP to ACK so that it can
// receive USBTMC commands.

12
src/class/usbtmc/usbtmc_device.h
View File

@ -108,12 +108,12 @@ bool tud_usbtmc_start_bus_read(void);
/* "callbacks" from USB device core */
bool usbtmcd_open_cb(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length);
void usbtmcd_reset_cb(uint8_t rhport);
bool usbtmcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
bool usbtmcd_control_request_cb(uint8_t rhport, tusb_control_request_t const * request);
bool usbtmcd_control_complete_cb(uint8_t rhport, tusb_control_request_t const * request);
void usbtmcd_init_cb(void);
uint16_t usbtmcd_open_cb(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len);
void usbtmcd_reset_cb(uint8_t rhport);
bool usbtmcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
bool usbtmcd_control_request_cb(uint8_t rhport, tusb_control_request_t const * request);
bool usbtmcd_control_complete_cb(uint8_t rhport, tusb_control_request_t const * request);
void usbtmcd_init_cb(void);
/************************************************************
* USBTMC Descriptor Templates