101 lines
4 KiB
Plaintext
101 lines
4 KiB
Plaintext
|
/*
|
||
|
|
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
|
||
|
|
|
||
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
you may not use this file except in compliance with the License.
|
||
|
|
You may obtain a copy of the License at
|
||
|
|
|
||
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
|
||
|
|
Unless required by applicable law or agreed to in writing, software
|
||
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
See the License for the specific language governing permissions and
|
||
|
|
limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @defgroup IO_BLOCK Abstract I/O Block Device
|
||
|
|
* @ingroup HAL_BLOCKS
|
||
|
|
*
|
||
|
|
* @section io_block_1 Driver State Machine
|
||
|
|
* The drivers implementing this interface shall implement the following
|
||
|
|
* state machine internally. Not all the driver functionalities can be used
|
||
|
|
* in any moment, any transition not explicitly shown in the following
|
||
|
|
* diagram has to be considered an error and shall be captured by an
|
||
|
|
* assertion (if enabled).
|
||
|
|
* @if LATEX_PDF
|
||
|
|
* @dot
|
||
|
|
digraph example {
|
||
|
|
size="5, 7";
|
||
|
|
rankdir="LR";
|
||
|
|
|
||
|
|
node [shape=circle, fontname=Sans, fontsize=8, fixedsize="true", width="0.9", height="0.9"];
|
||
|
|
edge [fontname=Sans, fontsize=8];
|
||
|
|
|
||
|
|
stop [label="BLK_STOP\nLow Power"];
|
||
|
|
uninit [label="BLK_UNINIT", style="bold"];
|
||
|
|
active [label="BLK_ACTIVE\nClock Enabled"];
|
||
|
|
connecting [label="BLK_CONN.ING\nConnecting"];
|
||
|
|
disconnecting [label="BLK_DISC.ING\nDisconnecting"];
|
||
|
|
ready [label="BLK_READY\nCard Ready"];
|
||
|
|
reading [label="BLK_READING\nReading"];
|
||
|
|
writing [label="BLK_WRITING\nWriting"];
|
||
|
|
|
||
|
|
uninit -> stop [label=" blkInit()", constraint=false];
|
||
|
|
stop -> stop [label="\nblkStop()"];
|
||
|
|
stop -> active [label="\nblkStart()"];
|
||
|
|
active -> stop [label="\nblkStop()"];
|
||
|
|
active -> active [label="\nblkStart()\nblkDisconnect()"];
|
||
|
|
active -> connecting [label="\nblkConnect()"];
|
||
|
|
connecting -> ready [label="\nconnection\nsuccessful"];
|
||
|
|
connecting -> ready [label="\nblkConnect()", dir="back"];
|
||
|
|
connecting -> active [label="\nconnection\nfailed"];
|
||
|
|
disconnecting -> ready [label="\nblkDisconnect()", dir="back"];
|
||
|
|
active -> disconnecting [label="\ndisconnection\nfinished", dir="back"];
|
||
|
|
ready -> reading [label="\nblkRead()"];
|
||
|
|
reading -> ready [label="\nread finished\nread error"];
|
||
|
|
ready -> writing [label="\nblkWrite()"];
|
||
|
|
writing -> ready [label="\nwrite finished\nwrite error"];
|
||
|
|
}
|
||
|
|
* @enddot
|
||
|
|
* @else
|
||
|
|
* @dot
|
||
|
|
digraph example {
|
||
|
|
rankdir="LR";
|
||
|
|
|
||
|
|
node [shape=circle, fontname=Sans, fontsize=8, fixedsize="true", width="0.9", height="0.9"];
|
||
|
|
edge [fontname=Sans, fontsize=8];
|
||
|
|
|
||
|
|
stop [label="BLK_STOP\nLow Power"];
|
||
|
|
uninit [label="BLK_UNINIT", style="bold"];
|
||
|
|
active [label="BLK_ACTIVE\nClock Enabled"];
|
||
|
|
connecting [label="BLK_CONN.ING\nConnecting"];
|
||
|
|
disconnecting [label="BLK_DISC.ING\nDisconnecting"];
|
||
|
|
ready [label="BLK_READY\nCard Ready"];
|
||
|
|
reading [label="BLK_READING\nReading"];
|
||
|
|
writing [label="BLK_WRITING\nWriting"];
|
||
|
|
syncing [label="BLK_SYNCING\nSynchronizing"];
|
||
|
|
|
||
|
|
uninit -> stop [label=" blkInit()", constraint=false];
|
||
|
|
stop -> stop [label="\nblkStop()"];
|
||
|
|
stop -> active [label="\nblkStart()"];
|
||
|
|
active -> stop [label="\nblkStop()"];
|
||
|
|
active -> active [label="\nblkStart()\nblkDisconnect()"];
|
||
|
|
active -> connecting [label="\nblkConnect()"];
|
||
|
|
connecting -> ready [label="\nconnection\nsuccessful"];
|
||
|
|
connecting -> ready [label="\nblkConnect()", dir="back"];
|
||
|
|
connecting -> active [label="\nconnection\nfailed"];
|
||
|
|
disconnecting -> ready [label="\nblkDisconnect()", dir="back"];
|
||
|
|
active -> disconnecting [label="\ndisconnection\nfinished", dir="back"];
|
||
|
|
ready -> reading [label="\nblkRead()"];
|
||
|
|
reading -> ready [label="\nread finished\nread error"];
|
||
|
|
ready -> writing [label="\nblkWrite()"];
|
||
|
|
writing -> ready [label="\nwrite finished\nwrite error"];
|
||
|
|
ready -> syncing [label="\nblkSync()"];
|
||
|
|
syncing -> ready [label="\nsynchronization finished"];
|
||
|
|
}
|
||
|
|
* @enddot
|
||
|
|
* @endif
|
||
|
|
*/
|