view src/cs/drivers/drv_app/fchg/fchg_env.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 d583a1f5bd6a
children
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/*
 * RiViera environment boilerplate header for the FCHG SWE
 */

#ifndef __FCHG_ENV_H__
#define __FCHG_ENV_H__

#include "rvm/rvm_gen.h"
#include "fchg/fchg_struct.h"
#include "fchg/fchg_pool_size.h"

#define	FCHG_MAILBOX		RVF_TASK_MBOX_0
#define	FCHG_TIMER		RVF_TIMER_0

/* memory bank size and watermark */
#define FCHG_MB_PRIM_SIZE            FCHG_MB1_SIZE
#define FCHG_MB_PRIM_WATERMARK 	    (FCHG_MB_PRIM_SIZE)

#define FCHG_MB_PRIM_INC_SIZE        0
#define FCHG_MB_PRIM_INC_WATERMARK   0

extern T_PWR_CTRL_BLOCK *pwr_ctrl;

/* Prototypes */

T_RVM_RETURN fchg_get_info (T_RVM_INFO_SWE  *infoSWE);

T_RVM_RETURN fchg_set_info(T_RVF_ADDR_ID  addr_id,
                           T_RV_RETURN    return_path[],
                           T_RVF_MB_ID    mbId[],
                           T_RVM_RETURN   (*callBackFct) (T_RVM_NAME SWEntName,
                           T_RVM_RETURN errorCause,
                           T_RVM_ERROR_TYPE errorType,
                           T_RVM_STRING errorMsg));

T_RVM_RETURN fchg_init (void);
T_RVM_RETURN fchg_core (void);
T_RVM_RETURN fchg_stop (void);
T_RVM_RETURN fchg_kill (void);

#endif	/* include guard */