FreeCalypso > hg > fc-magnetite
view src/ui3/bmi/mmiBlkResources.h @ 629:3231dd9b38c1
armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets
Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively,
and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code
for C-Sample and earlier turns them into GPIOs configured as outputs also
driving 1 - so far, so good - but TI's code for BOARD 41 (which covers
D-Sample, Leonardo and all real world Calypso devices derived from the
latter) switches them from MCUEN to GPIOs, but then leaves them as inputs.
Given that the hardware powerup state of these two pins is outputs driving 1,
every Calypso board design MUST be compatible with such driving; typically
these GPIO signals will be either unused and unconnected or connected as
outputs driving some peripheral. Turning these pins into GPIO inputs will
result in floating inputs on every reasonably-wired board, thus I am
convinced that this configuration is nothing but a bug on the part of
whoever wrote this code at TI.
This floating input bug had already been fixed earlier for GTA modem and
FCDEV3B targets; the present change makes the fix unconditional for all
"classic" targets. The newly affected targets are D-Sample, Leonardo,
Tango and GTM900.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 02 Jan 2020 05:38:26 +0000 |
| parents | 6a4d9f47793e |
| children |
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#ifndef _MMI_BlkResources_H_ #define _MMI_BlkResources_H_ #define ALLOC_MEMORY mfwAlloc #define FREE_MEMORY mfwFree /******************************************************************************* CONDAT (UK) ******************************************************************************** This software product is the property of Condat (UK) Ltd and may not be disclosed to any third party without the express permission of the owner. ******************************************************************************** $Project name: Basic MMI $Project code: BMI (6349) $Module: PhoneBook $File: MmiBlkResources.h $Revision: 1.0 $Author: Condat(UK) $Date: 25/10/00 ******************************************************************************** Description: The block resource manager handles a list of blocks of information, passing back pointers to the block of data on request. It provides a mechanism for mapping identifiers to strings, bitmaps, melodies or any other block of information. ******************************************************************************** $History: MmiBlkResources.h 25/10/00 Original Condat(UK) BMI version. $End *******************************************************************************/ /* Define the prototypes for the basic routines */ typedef void *tBlkHandle; typedef long int tBlkId; /* The initialisation routine must be called as part of the startup phase of the system, it will allocate working space for the block handler if required, and will initialise any structures required to maintain the correct operation of the functions. This routine must be called prior to invocation of any other block resource function */ tBlkHandle mmibr_Initialise( tBlkHandle BlkBase, int NumEntries ); /* The shutdown function can be called to free any allocations set up by the Initialise routine. In a running system this is unlikely to be called unless a catastrophic error has occurred and the system needs to be restarted. */ void mmibr_ShutDown( tBlkHandle *BlkRsrc ); /* We will adopt a mechanism where each block of data being provided will need to be returned to the block resource manager when it is no longer being used, this will provide an orthogonal approach when dealing with data coming from either ROM or dynamically allocated memory */ tBlkHandle mmibr_Fetch( tBlkHandle BlkRsrc, tBlkId Id ); /* Added to remove warning Aug - 11 */ EXTERN U8 *mfwAlloc (U32 size); /* End - Remove warning */ /******************************************************************************* End of File *******************************************************************************/ #endif