diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/pbdrv/pb-mod.h | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/lib/pbdrv/pb-mod.h b/lib/pbdrv/pb-mod.h index ae36d22..c4629a6 100644 --- a/lib/pbdrv/pb-mod.h +++ b/lib/pbdrv/pb-mod.h @@ -3,8 +3,8 @@ /** * \file puzzle bus driver implementation * - * Most \c pb_* functions have a weak implementation, which may be - * overwritten by a custom implementation. This allows you to use the default + * Most \c pb_* functions have a weak implementation, which may be overwritten + * by a custom implementation. This allows you to use the default * implementation where possible, and only implement extensions required for * your puzzle module. Please see spec.adoc for more information about how to * use the puzzle bus driver library. @@ -21,10 +21,42 @@ extern const char * PB_MOD_NAME; //! puzzle module bus address (required) extern const i2c_addr_t PB_MOD_ADDR; +/** + * \brief handle a received message from the I2C bus (puzzle bus) + * + * This function attempts to parse an I2C message as a puzzle bus message, and + * calls the appropriate handler for the message if it is considered valid. + * + * \param buf pointer to message content + * \param sz size of \p buf + * + * \note This function should not be directly called from an ISR. Please use + * FreeRTOS's \c xTimerPendFunctionCallFromISR() or a similar scheduler-based + * deferred function call mechanism instead. + */ void pb_i2c_recv(const uint8_t * buf, size_t sz); +/** + * \brief send a message in master-mode on the I2C bus (puzzle bus) + * + * This function sends an I2C message to the address specified by \p i2c_addr. + * + * \param i2c_addr address of slave controller + * \param buf pointer to message content + * \param sz size of \p buf + */ void pb_i2c_send(i2c_addr_t i2c_addr, const uint8_t * buf, size_t sz); +/** + * \brief global state read hook + * \ingroup hook + * \return current value of global state enum + */ pb_global_state_t pb_hook_mod_state_read(); +/** + * \brief global state write hook + * \ingroup hook + * \param state new value of global state enum + */ void pb_hook_mod_state_write(pb_global_state_t state); /** |