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iPod Classic: ADC updates

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Add code to read USB D+/D- and accessory ADCs, it is shown in HW
debug menu, might be useful in future for RB and/or the bootloader
to identify external USB chargers.

Change-Id: Ia48ca5e06bb7ddc52bb55abedde6734653ce8dba
This commit is contained in:
Cástor Muñoz 2016-08-12 02:37:45 +02:00
parent a25d0c58aa
commit adbd2969e6
7 changed files with 201 additions and 57 deletions
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12
firmware/target/arm/s5l8702/debug-s5l8702.c
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@ -19,6 +19,7 @@
*
****************************************************************************/
#include <stdio.h>
#include <stdbool.h>
#include "system.h"
#include "config.h"
@ -28,6 +29,7 @@
#include "font.h"
#include "storage.h"
#include "power.h"
#include "adc.h"
#include "pmu-target.h"
#include "pcm-target.h"
#ifdef HAVE_SERIAL
@ -133,12 +135,20 @@ bool dbg_hw_info(void)
_DEBUG_PRINTF("accessory present: %s",
pmu_accessory_present() ? "true" : "false");
#endif
line++;
_DEBUG_PRINTF("ADC:");
_DEBUG_PRINTF("%s: %d mV", adc_name(ADC_BATTERY),
adc_read_battery_voltage());
_DEBUG_PRINTF("%s: %d Ohms", adc_name(ADC_ACCESSORY),
adc_read_accessory_resistor());
_DEBUG_PRINTF("USB D+: %d mV", adc_read_usbdata_voltage(true));
_DEBUG_PRINTF("USB D-: %d mV", adc_read_usbdata_voltage(false));
line++;
extern unsigned long i2c_rd_err, i2c_wr_err;
_DEBUG_PRINTF("i2c rd/wr errors: %lu/%lu", i2c_rd_err, i2c_wr_err);
}
#ifdef UC870X_DEBUG
else if(state==2)
else if(state==(max_states-1))
{
extern struct uartc_port ser_port;
bool opened = !!ser_port.uartc->port_l[ser_port.id];