Changeset 626 for trunk/kernel/devices/dev_txt.h

Timestamp:

Apr 29, 2019, 7:25:09 PM (5 years ago)

Author:

alain

Message:

This version has been tested on the sort multithreaded application
for TSAR_IOB architectures ranging from 1 to 8 clusters.
It fixes three bigs bugs:
1) the dev_ioc device API has been modified: the dev_ioc_sync_read()
and dev_ioc_sync_write() function use now extended pointers on the
kernel buffer to access a mapper stored in any cluster.
2) the hal_uspace API has been modified: the hal_copy_to_uspace()
and hal_copy_from_uspace() functions use now a (cxy,ptr) couple
to identify the target buffer (equivalent to an extended pointer.
3) an implementation bug has been fixed in the assembly code contained
in the hal_copy_to_uspace() and hal_copy_from_uspace() functions.

File:

• trunk/kernel/devices/dev_txt.h (modified) (3 diffs)

trunk/kernel/devices/dev_txt.h

@@ -2 +2 @@
  * dev_txt.h - TXT (Text Terminal) generic device API definition.
  *
- * Author  Alain Greiner    (2016)
+ * Author  Alain Greiner    (2016,2017,2018,2019))
  *
  * Copyright (c) UPMC Sorbonne Universites
@@ -106 +106 @@
     const char * buffer;    /*! local pointer on characters array                        */
     uint32_t     count;     /*! number of characters in buffer                           */
-    uint32_t    channel;   /*! channel, aka which tty to write to                        */
+    uint32_t     channel;   /*! channel, aka which tty to write to                       */
 }
 txt_sync_args_t;
 
 /******************************************************************************************
- * This function returns a printable string for the comman type.
+ * This function returns a printable string for the command type.
  ******************************************************************************************
  * @ type     : command type (TXT_READ / TXT_WRITE / TXT_SYNC_WRITE)
@@ -166 +166 @@
  * interfering with another possible TXT access to another terminal.
  * As it is used for debug, the command arguments <buffer> and <count> are registerd
- * in a specific "dbg_cmd" field of the calling thread.
+ * in a specific "txt_syc_args_t" structure passed to the driver "aux" function.
  ****************************************************************************************
  * @ buffer    : local pointer on source buffer containing the string.