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view src/cs/drivers/drv_app/fchg/fchg_struct.h @ 629:3231dd9b38c1

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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 4c3d05866531
children
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/*
 * Internal structure definitions for the FCHG SWE reside here.
 * abb_inth.c will also need to include this header in order to
 * get our T_PWR_CTRL_BLOCK definition.
 */

#ifndef __FCHG_STRUCT_H
#define __FCHG_STRUCT_H

#include "rv/rv_general.h"
#include "rvf/rvf_api.h"
#include "fchg/fchg_common.h"

struct charging_config {
	UINT16	start_delay;
	UINT16	start_thresh;
	UINT16	restart_thresh;
	UINT16	ci2cv_thresh;
	UINT16	cv_init_set;
	UINT16	cv_ctrl_loop_high;
	UINT16	cv_ctrl_loop_low;
	UINT16	cv_dac_max_incr;
	UINT16	cv_dac_max_decr;
	UINT16	cv_samples_needed;
	UINT16	overvoltage;
	UINT16	ci_current;
	UINT16	end_current;
	UINT16	ichg_max_spike;
	UINT16	ichg_samples_needed;
	UINT16	charge_time_limit;
	UINT16	recharge_delay;
	UINT16	bciconf;
};

/* from original PWR SWE */
typedef struct {
	UINT16		bat_voltage;
	T_PWR_PERCENT	remain_capa;
} T_PWR_THRESHOLDS;

#define	MAX_THRESHOLDS	101

#define	ICHG_AVG_WINDOW	6

typedef struct {
	/* RiViera boilerplate */
	T_RVF_ADDR_ID		addr_id;
	T_RVF_MB_ID		prim_id;
	/* configuration */
	struct charging_config	config;
	BOOL			config_present;
	T_PWR_THRESHOLDS	batt_thresholds[MAX_THRESHOLDS];
	UINT16			nb_thresholds;
	/* state */
	enum fchg_state		state;
	UINT16			batt_mv;
	UINT16			curr_disch_thresh;
	/* valid only during a charging cycle */
	UINT16			i2v_offset;
	UINT16			cv_dac_init;
	UINT16			cv_dac_curr;
	UINT16			cv_high_vbat_count;
	UINT16			cv_low_vbat_count;
	UINT16			ichg_avg_buf[ICHG_AVG_WINDOW];
	UINT16			ichg_fill_level;
	UINT16			ichg_ring_ptr;
	UINT16			ichg_average;
	UINT16			ichg_low_count;
	UINT32			start_time;
} T_PWR_CTRL_BLOCK;

#endif	/* include guard */