adding tusb_private.h to implement common edpt claim
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25
src/tusb.c
25
src/tusb.c
@@ -29,6 +29,7 @@
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#if CFG_TUH_ENABLED || CFG_TUD_ENABLED
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#include "tusb.h"
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#include "common/tusb_private.h"
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// TODO clean up
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#if CFG_TUD_ENABLED
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@@ -67,6 +68,30 @@ bool tusb_inited(void)
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// Internal Helper for both Host and Device stack
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//--------------------------------------------------------------------+
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bool tu_edpt_claim(tu_edpt_state_t* ep_state, osal_mutex_t mutex)
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{
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(void) mutex;
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#if TUSB_OPT_MUTEX
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// pre-check to help reducing mutex lock
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TU_VERIFY((ep_state->busy == 0) && (ep_state->claimed == 0));
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osal_mutex_lock(mutex, OSAL_TIMEOUT_WAIT_FOREVER);
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#endif
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// can only claim the endpoint if it is not busy and not claimed yet.
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bool const available = (ep_state->busy == 0) && (ep_state->claimed == 0);
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if (available)
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{
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ep_state->claimed = 1;
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}
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#if TUSB_OPT_MUTEX
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osal_mutex_unlock(mutex);
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#endif
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return available;
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}
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bool tu_edpt_validate(tusb_desc_endpoint_t const * desc_ep, tusb_speed_t speed)
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{
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uint16_t const max_packet_size = tu_edpt_packet_size(desc_ep);
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