FreeCalypso > hg > fc-magnetite
view src/cs/layer1/gtt_include/ctm/fifo.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 | 945cf7f506b2 |
| children |
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/* ******************************************************************************* * * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH * 90411 NUERNBERG, GERMANY, Tel Int + 49 911 5217 100 * * The program(s) may be used and/or copied only with the * written permission from Ericsson or in accordance * with the terms and conditions stipulated in the agreement or * contract under which the program(s) have been supplied. * ******************************************************************************* * * File : fifo.h * Author : Matthias Doerbecker * Tested Platforms : DEC Alpha 250 4/266 (OSF/1 3.2) * Description : File I/O for float and double (32/64 bit signed) * values. * * Revision history * * Rev Date Name Description * ------------------------------------------------------------------- * pA1 12-MAR-97 M.Doerbecker initial version * (based on shortio.h pA2) * ******************************************************************************* */ #ifndef fifo_h #define fifo_h "$Id: $" /* ******************************************************************************* * INCLUDE FILES ******************************************************************************* */ #include "ctm_typedefs.h" /* ******************************************************************************* * DEFINITION OF CONSTANTS ******************************************************************************* */ /* ******************************************************************************* * DEFINITION OF DATA TYPES ******************************************************************************* */ // typedef float Float; // typedef char Char; typedef enum {SHORTINT_FIFO, FLOAT_FIFO, CHAR_FIFO} fifo_type_t; /* fifo_state_t is the state variable type that is used for both types */ /* of fifo structures: Shortint_fifo as well as Float_fifo. */ typedef struct { WORD16 *buffer_Shortint; /* buffer for Shortint_fifo_xxx() */ Float *buffer_Float; /* buffer for Float_fifo_xxx() */ Char *buffer_Char; /* buffer for Char_fifo_xxx() */ WORD32 length_buffer; /* maximum length of the fifo buffer */ WORD32 num_entries_actual;/* actual number of elements in fifo */ fifo_type_t fifo_type; /* either SHORTINT_FIFO or FLOAT_FIFO */ WORD32 magic_number; /* for detecting wheter fifo is initialized */ } fifo_state_t; /* ******************************************************************************* * DECLARATION OF PROTOTYPES ******************************************************************************* */ /* ******************************************************************************* * * Function : Shortint_fifo_init * In : length_fifo determines maximukm length of the buffer * Out : fifo_state initialized state variable * Calls : calloc, fprintf, exit * Tables : <none> * Compile Defines : <none> * Return : 0 on success, 1 in case of an error * Information : initialization of a fifo structure for buffering * Shortint data * ******************************************************************************* */ int Shortint_fifo_init(fifo_state_t *fifo_state, WORD32 length_fifo); /* ******************************************************************************* * * Function : Shortint_fifo_reset * In : * In/Out : fifo_state initialized state variable * Calls : <none> * Tables : <none> * Compile Defines : <none> * Return : 0 on success, 1 in case of an error * Information : reset of the fifo structure, i.e. all buffered * elements are removed * ******************************************************************************* */ int Shortint_fifo_reset(fifo_state_t *fifo_state); /* ******************************************************************************* * * Function : Shortint_fifo_exit * In : length_fifo determines maximum length of the buffer * In/Out : fifo_state initialized state variable * Calls : free, fprintf, exit * Tables : <none> * Compile Defines : <none> * Return : 0 on success, 1 in case of an error * Information : shuts down fifo structure, frees allocated memory * ******************************************************************************* */ int Shortint_fifo_exit(fifo_state_t *fifo_state); /* ******************************************************************************* * * Function : Shortint_fifo_push * In : elements_to_push vector containing the elements * In num_elements_to_push number of the elements * In/Out : fifo_state state variable * Calls : fprintf, exit * Tables : <none> * Compile Defines : <none> * Return : 0 on success, 1 in case of an error * Information : pushes elements into the fifo * ******************************************************************************* */ int Shortint_fifo_push(fifo_state_t *fifo_state, WORD16 *elements_to_push, WORD32 num_elements_to_push); /* ******************************************************************************* * * Function : Shortint_fifo_pop * In : num_elements_to_pop number of the elements * Out : popped_elements vector containing the elements * In/Out : fifo_state state variable * Calls : fprintf, exit * Tables : <none> * Compile Defines : <none> * Return : 0 on success, 1 in case of an error * Information : pops elements from the fifo * ******************************************************************************* */ int Shortint_fifo_pop(fifo_state_t *fifo_state, WORD16 *popped_elements, WORD32 num_elements_to_pop); /* ******************************************************************************* * * Function : Shortint_fifo_peek * In : num_elements_to_peek number of the elements * Out : peeked_elements vector containing the elements * In/Out : fifo_state state variable * Calls : fprintf, exit * Tables : <none> * Compile Defines : <none> * Return : 0 on success, 1 in case of an error * Information : similar to pop, but elements are remaining in buffer * ******************************************************************************* */ int Shortint_fifo_peek(fifo_state_t *fifo_state, WORD16 *peeked_elements, WORD32 num_elements_to_peek); /* ******************************************************************************* * * Function : Shortint_fifo_check * In/Out : fifo_state state variable * Calls : <none> * Tables : <none> * Compile Defines : <none> * Return : number of elements in fifo * Information : determines the number of valid elements in fifo * ******************************************************************************* */ WORD32 Shortint_fifo_check(fifo_state_t *fifo_state); #endif