Various Documentation Updates + bump version to SDK1.5.0-develop (#1220)
* minor cleanup of lwip+tinyusb docs, and bump sdk verison number to 1.5.0-develop * Update cyw43_arch docs for async_context_use * remove accidental copy of some comments
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Graham Sanderson
GitHub
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@ -3,10 +3,10 @@
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set(PICO_SDK_VERSION_MAJOR 1)
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# PICO_BUILD_DEFINE: PICO_SDK_VERSION_MINOR, SDK minor version number, type=int, group=pico_base
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# PICO_CMAKE_CONFIG: PICO_SDK_VERSION_MINOR, SDK minor version number, type=int, group=pico_base
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set(PICO_SDK_VERSION_MINOR 4)
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set(PICO_SDK_VERSION_MINOR 5)
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# PICO_BUILD_DEFINE: PICO_SDK_VERSION_REVISION, SDK version revision, type=int, group=pico_base
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# PICO_CMAKE_CONFIG: PICO_SDK_VERSION_REVISION, SDK version revision, type=int, group=pico_base
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set(PICO_SDK_VERSION_REVISION 1)
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set(PICO_SDK_VERSION_REVISION 0)
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# PICO_BUILD_DEFINE: PICO_SDK_VERSION_PRE_RELEASE_ID, optional SDK pre-release version identifier, type=string, group=pico_base
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# PICO_CMAKE_CONFIG: PICO_SDK_VERSION_PRE_RELEASE_ID, optional SDK pre-release version identifier, type=string, group=pico_base
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set(PICO_SDK_VERSION_PRE_RELEASE_ID develop)
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@ -145,7 +145,7 @@ typedef struct async_when_pending_worker {
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#define ASYNC_CONTEXT_FLAG_POLLED 0x4
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/*!
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* \brief Implementation of an async_context
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* \brief Implementation of an async_context type, providing methods common to that type
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* \ingroup pico_async_context
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*/
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typedef struct async_context_type {
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@ -166,6 +166,12 @@ typedef struct async_context_type {
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void (*deinit)(async_context_t *self);
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} async_context_type_t;
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/*!
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* \brief Base structure type of all async_contexts. For details about its use, see \ref pico_async_context.
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* \ingroup pico_async_context
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*
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* Individual async_context_types with additional state, should contain this structure at the start.
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*/
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struct async_context {
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const async_context_type_t *type;
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async_when_pending_worker_t *when_pending_list;
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@ -55,11 +55,27 @@ extern "C" {
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*
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* * \em 'poll' - This not multi-core/IRQ safe, and requires the user to call \ref cyw43_arch_poll periodically from their main loop
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* * \em 'thread_safe_background' - This is multi-core/thread/task safe, and maintenance of the driver and TCP/IP stack is handled automatically in the background
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* * \em 'freertos' - This is multi-core/thread/task safe, and uses a separate FreeRTOS task to handle lwIP and and driver work.
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*
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* As of right now, lwIP is the only supported TCP/IP stack, however the use of \c pico_cyw43_arch is intended to be independent of
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* the particular TCP/IP stack used (and possibly Bluetooth stack used) in the future. For this reason, the integration of lwIP
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* is handled in the base (\c pico_cyw43_arch) library based on the #define \ref CYW43_LWIP used by the \c cyw43_driver.
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*
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* \note As of version 1.5.0 of the Raspberry Pi Pico SDK, the \c pico_cyw43_arch library no longer directly implements
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* the distinct behavioral abstractions. This is now handled by the more general \ref pico_async_context library. The
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* user facing behavior of pico_cyw43_arch has not changed as a result of this implementation detail, however pico_cyw43_arch
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* is now just a thin wrapper which creates an appropriate async_context and makes a simple call to add lwIP or cyw43_driver support
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* as appropriate. You are free to perform this context creation and adding of lwIP, cyw43_driver or indeed any other additional
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* future protocol/driver support to your async_context, however for now pico_cyw43_arch does still provide a few cyw43_ specific (i.e. Pico W)
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* APIs still for connection management, locking and GPIO interaction.
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*
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* \note The connection management APIs at least may be moved
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* to a more generic library in a future release. The locking methods are now backed by their \ref pico_async_context equivalents, and
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* those methods may be used interchangeably (see \ref cyw43_arch_lwip_begin, \ref cyw43_arch_lwip_end and \ref cyw43_arch_lwip_check for more details).
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*
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* \note For examples of creating of your own async_context and addition of \c cyw43_driver and \c lwIP support, please
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* refer to the specific source files \c cyw43_arch_poll.c, \c cyw43_arch_threadsafe_background.c and \c cyw43_arch_freertos.c.
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*
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* Whilst you can use the \c pico_cyw43_arch library directly and specify \ref CYW$#_LWIP (and other defines) yourself, several
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* other libraries are made available to the build which aggregate the defines and other dependencies for you:
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*
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@ -145,7 +161,7 @@ extern "C" {
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* which defaults to \c CYW43_COUNTRY_WORLDWIDE. Worldwide settings may not give the best performance; consider
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* setting PICO_CYW43_ARCH_DEFAULT_COUNTRY_CODE to a different value or calling \ref cyw43_arch_init_with_country
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*
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* By default this method initializes the cyw43_arch code's own \ref async_context by calling
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* By default this method initializes the cyw43_arch code's own async_context by calling
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* \ref cyw43_arch_init_default_async_context, however the user can specify use of their own async_context
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* by calling \ref cyw43_arch_set_async_context() before calling this method
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*
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@ -161,7 +177,7 @@ int cyw43_arch_init(void);
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* was enabled at build time). This method must be called prior to using any other \c pico_cyw43_arch,
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* \c cyw43_driver or lwIP functions.
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*
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* By default this method initializes the cyw43_arch code's own \ref async_context by calling
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* By default this method initializes the cyw43_arch code's own async_context by calling
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* \ref cyw43_arch_init_default_async_context, however the user can specify use of their own async_context
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* by calling \ref cyw43_arch_set_async_context() before calling this method
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*
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@ -202,7 +218,7 @@ async_context_t *cyw43_arch_async_context(void);
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void cyw43_arch_set_async_context(async_context_t *context);
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/*!
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* \brief Initialize the default \ref async_context for the current cyw43_arch type
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* \brief Initialize the default async_context for the current cyw43_arch type
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* \ingroup pico_cyw43_arch
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*
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* This method initializes and returns a pointer to the static async_context associated
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@ -246,8 +262,13 @@ void cyw43_arch_wait_for_work_until(absolute_time_t until);
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* If you are using single-core polling only (pico_cyw43_arch_poll) then these calls are no-ops
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* anyway it is good practice to call them anyway where they are necessary.
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*
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* \note as of SDK release 1.5.0, this is now equivalent to calling \ref pico_async_context_acquire_lock_blocking
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* on the async_context associated with cyw43_arch and lwIP.
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*
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* \sa cyw43_arch_lwip_end
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* \sa cyw43_arch_lwip_protect
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* \sa async_context_acquire_lock_blocking
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* \sa cyw43_arch_async_context
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*/
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static inline void cyw43_arch_lwip_begin(void) {
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cyw43_thread_enter();
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@ -264,8 +285,13 @@ static inline void cyw43_arch_lwip_begin(void) {
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* If you are using single-core polling only (pico_cyw43_arch_poll) then these calls are no-ops
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* anyway it is good practice to call them anyway where they are necessary.
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*
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* \note as of SDK release 1.5.0, this is now equivalent to calling \ref async_context_release_lock
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* on the async_context associated with cyw43_arch and lwIP.
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*
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* \sa cyw43_arch_lwip_begin
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* \sa cyw43_arch_lwip_protect
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* \sa async_context_release_lock
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* \sa cyw43_arch_async_context
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*/
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static inline void cyw43_arch_lwip_end(void) {
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cyw43_thread_exit();
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@ -306,8 +332,13 @@ static inline int cyw43_arch_lwip_protect(int (*func)(void *param), void *param)
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* This method will assert in debug mode, if the above conditions are not met (i.e. it is not safe to
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* call into the lwIP API)
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*
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* \note as of SDK release 1.5.0, this is now equivalent to calling \ref async_context_lock_check
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* on the async_context associated with cyw43_arch and lwIP.
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*
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* \sa cyw43_arch_lwip_begin
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* \sa cyw43_arch_lwip_protect
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* \sa async_context_lock_check
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* \sa cyw43_arch_async_context
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*/
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/*!
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@ -1,8 +1,20 @@
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/**
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* \defgroup pico_lwip pico_lwip
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* \brief Wrapper libraries for <a href="https://savannah.nongnu.org/projects/lwip/lwIP">lwIP</a>
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* \brief Integration/wrapper libraries for <a href="https://savannah.nongnu.org/projects/lwip/lwIP">lwIP</a>
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* the documentation for which is <a href="https://www.nongnu.org/lwip/2_1_x/index.html">here</a>.
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*
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* The following libraries are provided that contain the equivalent lwIP functionality groups:
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* The main \c \b pico_lwip library itself aggregates the lwIP RAW API: \c \b pico_lwip_core, \c \b pico_lwip_core4, \c \b pico_lwip_core6, \c \b pico_lwip_api, \c \b pico_lwip_netif, \c \b pico_lwip_sixlowpan and \c \b pico_lwip_ppp.
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*
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* If you wish to run in NO_SYS=1 mode, then you can link \c \b pico_lwip along with \ref pico_lwip_nosys.
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*
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* If you wish to run in NO_SYS=0 mode, then you can link \c \b pico_lwip with (for instance) \ref pico_lwip_freertos,
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* and also link in pico_lwip_api for the additional blocking/thread-safe APIs.
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*
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* Additionally you must link in \ref pico_lwip_arch unless you provide your own compiler bindings for lwIP.
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*
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* Additional individual pieces of lwIP functionality are available à la cart, by linking any of the libraries below.
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*
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* The following libraries are provided that contain exactly the equivalent lwIP functionality groups:
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*
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* * \c \b pico_lwip_core -
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* * \c \b pico_lwip_core4 -
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@ -12,7 +24,7 @@
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* * \c \b pico_lwip_ppp -
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* * \c \b pico_lwip_api -
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*
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* The following libraries are provided that contain the equivalent lwIP application support:
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* The following libraries are provided that contain exactly the equivalent lwIP application support:
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*
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* * \c \b pico_lwip_snmp -
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* * \c \b pico_lwip_http -
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@ -26,20 +38,9 @@
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* * \c \b pico_lwip_mbedtls -
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* * \c \b pico_lwip_mqtt -
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*
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* The SDK Provides a common set of functionality in \c \p pico_lwip which aggregates:
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*
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* * \c \b pico_lwip_core -
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* * \c \b pico_lwip_core4 -
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* * \c \b pico_lwip_core6 -
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* * \c \b pico_lwip_netif -
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* * \c \b pico_lwip_sixlowpan -
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* * \c \b pico_lwip_ppp -
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*
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* The following additional libraries are provided:
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*
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* * \c \b pico_lwip - Aggregates the lwIP RAW API: \c \b pico_lwip_core, \c \b pico_lwip_core4, \c \b pico_lwip_core6, \c \b pico_lwip_api, \c \b pico_lwip_netif, \c \b pico_lwip_sixlowpan and \c \b pico_lwip_ppp. It does
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* not include \c \b pico_lwip_api, which requires NO_SYS=0. You should include the latter separately if you want it.
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*
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* * \c \b pico_lwip_arch - lwIP required compiler adapters. This is not included in \c \b pico_lwip in case you wish to replace them.
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* * \c \b pico_lwip_nosys - basic stub functions for NO_SYS mode.
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*/
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/** \defgroup pico_lwip_arch pico_lwip_arch
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* \ingroup pico_lwip
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* \brief lwIP compiler adapters. This is not included by default in \c \b pico_lwip in case you wish to implement your own.
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*/
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@ -14,8 +14,15 @@
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extern "C" {
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#endif
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/*! \brief Initializes lwIP (NO_SYS=0 mode) support support for FreeRTOS using the provided async_context
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/** \file pico/lwip_freertos.h
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* \defgroup pico_lwip_freertos pico_lwip_freertos
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* \ingroup pico_lwip
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* \brief Glue library for integration lwIP in \c NO_SYS=0 mode with the SDK. Simple \c init and \c deinit
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* are all that is required to hook up lwIP (with full blocking API support) via an \ref async_context instance.
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*/
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/*! \brief Initializes lwIP (NO_SYS=0 mode) support support for FreeRTOS using the provided async_context
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* \ingroup pico_lwip_freertos
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*
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* If the initialization succeeds, \ref lwip_freertos_deinit() can be called to shutdown lwIP support
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*
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@ -27,7 +34,7 @@ extern "C" {
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bool lwip_freertos_init(async_context_t *context);
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/*! \brief De-initialize lwIP (NO_SYS=0 mode) support for FreeRTOS
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* \ingroup pico_lwip
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* \ingroup pico_lwip_freertos
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*
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* Note that since lwIP may only be initialized once, and doesn't itself provide a shutdown mechanism, lwIP
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* itself may still consume resources.
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@ -14,8 +14,15 @@
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extern "C" {
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#endif
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/*! \brief Initializes lwIP (NO_SYS=1 mode) support support using the provided async_context
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/** \file pico/lwip_nosys.h
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* \defgroup pico_lwip_nosys pico_lwip_nosys
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* \ingroup pico_lwip
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* \brief Glue library for integration lwIP in \c NO_SYS=1 mode with the SDK. Simple \c init and \c deinit
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* are all that is required to hook up lwIP via an \ref async_context instance.
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*/
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/*! \brief Initializes lwIP (NO_SYS=1 mode) support support using the provided async_context
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* \ingroup pico_lwip_nosys
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*
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* If the initialization succeeds, \ref lwip_nosys_deinit() can be called to shutdown lwIP support
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*
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@ -25,7 +32,7 @@ extern "C" {
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bool lwip_nosys_init(async_context_t *context);
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/*! \brief De-initialize lwIP (NO_SYS=1 mode) support
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* \ingroup pico_lwip
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* \ingroup pico_lwip_nosys
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*
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* Note that since lwIP may only be initialized once, and doesn't itself provide a shutdown mechanism, lwIP
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* itself may still consume resources
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@ -1,7 +1,7 @@
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/**
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* \defgroup tinyusb_device tinyusb_device
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* \brief <a href="https://github.com/hathach/tinyusb">TinyUSB</a> Device-mode support for the RP2040
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* <a href="https://github.com/hathach/tinyusb">TinyUSB</a> Device-mode support for the RP2040. The TinyUSB documentation site can be found <a href="https://docs.tinyusb.org/en/latest/">here</a>.
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*
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* \defgroup tinyusb_host tinyusb_host
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* \brief <a href="https://github.com/hathach/tinyusb">TinyUSB</a> Host-mode support for the RP2040
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* <a href="https://github.com/hathach/tinyusb">TinyUSB</a> Host-mode support for the RP2040.
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*/
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