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Change getting the capabilities structure to a callback instead of an extern struct.

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This commit is contained in:
Nathan Conrad 2019-09-25 12:17:49 -04:00
parent 2d4352bfe9
commit 3a87dd65d7
3 changed files with 42 additions and 20 deletions
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14
examples/device/usbtmc/src/usbtmc_app.c
View File

@ -30,9 +30,9 @@
#include "main.h"
#if (CFG_TUD_USBTMC_ENABLE_488)
usbtmc_response_capabilities_488_t const
static usbtmc_response_capabilities_488_t const
#else
usbtmc_response_capabilities_t const
static usbtmc_response_capabilities_t const
#endif
tud_usbtmc_app_capabilities =
{
@ -102,6 +102,16 @@ void tud_usbtmc_app_open_cb(uint8_t interface_id)
tud_usbtmc_start_bus_read();
}
#if (CFG_TUD_USBTMC_ENABLE_488)
usbtmc_response_capabilities_488_t const *
#else
usbtmc_response_capabilities_t const *
#endif
tud_usbtmc_get_capabilities_cb()
{
return &tud_usbtmc_app_capabilities;
}
bool tud_usbtmc_app_msg_trigger_cb(usbtmc_msg_generic_t* msg) {
(void)msg;

36
src/class/usbtmc/usbtmc_device.c
View File

@ -114,6 +114,13 @@ typedef enum
STATE_NUM_STATES
} usbtmcd_state_enum;
#if (CFG_TUD_USBTMC_ENABLE_488)
typedef usbtmc_response_capabilities_488_t usbtmc_capabilities_specific_t;
#else
typedef usbtmc_response_capabilities_t usbtmc_capabilities_specific_t;
#endif
typedef struct
{
volatile usbtmcd_state_enum state;
@ -135,6 +142,8 @@ typedef struct
uint8_t lastBulkInTag; // used for aborts (mostly)
uint8_t const * devInBuffer; // pointer to application-layer used for transmissions
usbtmc_capabilities_specific_t const * capabilities;
} usbtmc_interface_state_t;
static usbtmc_interface_state_t usbtmc_state =
@ -199,7 +208,7 @@ bool tud_usbtmc_transmit_dev_msg_data(
TU_ASSERT(usbtmc_state.transfer_size_sent == 0u);
if(usingTermChar)
{
TU_ASSERT(tud_usbtmc_app_capabilities.bmDevCapabilities.canEndBulkInOnTermChar);
TU_ASSERT(usbtmc_state.capabilities->bmDevCapabilities.canEndBulkInOnTermChar);
TU_ASSERT(termCharRequested);
TU_ASSERT(((uint8_t*)data)[len-1u] == termChar);
}
@ -235,15 +244,16 @@ bool tud_usbtmc_transmit_dev_msg_data(
void usbtmcd_init_cb(void)
{
usbtmc_state.capabilities = tud_usbtmc_get_capabilities_cb();
#ifndef NDEBUG
# if CFG_TUD_USBTMC_ENABLE_488
if(tud_usbtmc_app_capabilities.bmIntfcCapabilities488.supportsTrigger)
if(usbtmc_state.capabilities->bmIntfcCapabilities488.supportsTrigger)
TU_ASSERT(&tud_usbtmc_app_msg_trigger_cb != NULL,);
// Per USB488 spec: table 8
TU_ASSERT(!tud_usbtmc_app_capabilities.bmIntfcCapabilities.listenOnly,);
TU_ASSERT(!tud_usbtmc_app_capabilities.bmIntfcCapabilities.talkOnly,);
TU_ASSERT(!usbtmc_state.capabilities->bmIntfcCapabilities.listenOnly,);
TU_ASSERT(!usbtmc_state.capabilities->bmIntfcCapabilities.talkOnly,);
# endif
if(tud_usbtmc_app_capabilities.bmIntfcCapabilities.supportsIndicatorPulse)
if(usbtmc_state.capabilities->bmIntfcCapabilities.supportsIndicatorPulse)
TU_ASSERT(&tud_usbtmc_app_indicator_pulse_cb != NULL,);
#endif
@ -317,8 +327,8 @@ bool usbtmcd_open_cb(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uin
TU_ASSERT(usbtmc_state.ep_int_in != 0);
}
#if (CFG_TUD_USBTMC_ENABLE_488)
if(tud_usbtmc_app_capabilities.bmIntfcCapabilities488.is488_2 ||
tud_usbtmc_app_capabilities.bmDevCapabilities488.SR1)
if(usbtmc_state.capabilities->bmIntfcCapabilities488.is488_2 ||
usbtmc_state.capabilities->bmDevCapabilities488.SR1)
{
TU_ASSERT(usbtmc_state.ep_int_in != 0);
}
@ -358,9 +368,11 @@ bool tud_usbtmc_start_bus_read()
void usbtmcd_reset_cb(uint8_t rhport)
{
(void)rhport;
usbtmc_capabilities_specific_t const * capabilities = tud_usbtmc_get_capabilities_cb();
criticalEnter();
tu_varclr(&usbtmc_state);
usbtmc_state.capabilities = capabilities;
usbtmc_state.itf_id = 0xFFu;
criticalLeave();
}
@ -428,7 +440,7 @@ static bool handle_devMsgIn(void *data, size_t len)
termChar = msg->TermChar;
if(termCharRequested)
TU_VERIFY(tud_usbtmc_app_capabilities.bmDevCapabilities.canEndBulkInOnTermChar);
TU_VERIFY(usbtmc_state.capabilities->bmDevCapabilities.canEndBulkInOnTermChar);
TU_VERIFY(tud_usbtmc_app_msgBulkIn_request_cb(msg));
return true;
@ -471,7 +483,7 @@ bool usbtmcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint
#if (CFG_TUD_USBTMC_ENABLE_488)
case USBTMC_MSGID_USB488_TRIGGER:
// Spec says we halt the EP if we didn't declare we support it.
TU_VERIFY(tud_usbtmc_app_capabilities.bmIntfcCapabilities488.supportsTrigger);
TU_VERIFY(usbtmc_state.capabilities->bmIntfcCapabilities488.supportsTrigger);
TU_VERIFY(tud_usbtmc_app_msg_trigger_cb(msg));
break;
@ -768,8 +780,8 @@ bool usbtmcd_control_request_cb(uint8_t rhport, tusb_control_request_t const * r
case USBTMC_bREQUEST_GET_CAPABILITIES:
{
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(request->wLength == sizeof(tud_usbtmc_app_capabilities));
TU_VERIFY(tud_control_xfer(rhport, request, (void*)&tud_usbtmc_app_capabilities, sizeof(tud_usbtmc_app_capabilities)));
TU_VERIFY(request->wLength == sizeof(*(usbtmc_state.capabilities)));
TU_VERIFY(tud_control_xfer(rhport, request, (void*)usbtmc_state.capabilities, sizeof(*usbtmc_state.capabilities)));
return true;
}
// USBTMC Optional Requests
@ -778,7 +790,7 @@ bool usbtmcd_control_request_cb(uint8_t rhport, tusb_control_request_t const * r
{
TU_VERIFY(request->bmRequestType == 0xA1); // in,class,interface
TU_VERIFY(request->wLength == sizeof(tmcStatusCode));
TU_VERIFY(tud_usbtmc_app_capabilities.bmIntfcCapabilities.supportsIndicatorPulse);
TU_VERIFY(usbtmc_state.capabilities->bmIntfcCapabilities.supportsIndicatorPulse);
TU_VERIFY(tud_usbtmc_app_indicator_pulse_cb(request, &tmcStatusCode));
TU_VERIFY(tud_control_xfer(rhport, request, (void*)&tmcStatusCode, sizeof(tmcStatusCode)));
return true;

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

@ -49,12 +49,6 @@
* Functions to be implemeted by the class implementation
*/
#if (CFG_TUD_USBTMC_ENABLE_488)
extern usbtmc_response_capabilities_488_t const tud_usbtmc_app_capabilities;
#else
extern usbtmc_response_capabilities_t const tud_usbtmc_app_capabilities;
#endif
// In order to proceed, app must call call tud_usbtmc_start_bus_read(rhport) during or soon after:
// * tud_usbtmc_app_open_cb
// * tud_usbtmc_app_msg_data_cb
@ -64,6 +58,12 @@ extern usbtmc_response_capabilities_t const tud_usbtmc_app_capabilities;
// * (successful) tud_usbtmc_app_check_abort_bulk_in_cb
// * (successful) tud_usmtmc_app_bulkOut_clearFeature_cb
#if (CFG_TUD_USBTMC_ENABLE_488)
usbtmc_response_capabilities_488_t const * tud_usbtmc_get_capabilities_cb(void);
#else
usbtmc_response_capabilities_t const * tud_usbtmc_get_capabilities_cb(void);
#endif
void tud_usbtmc_app_open_cb(uint8_t interface_id);
bool tud_usbtmc_app_msgBulkOut_start_cb(usbtmc_msg_request_dev_dep_out const * msgHeader);