Date: Wed, 20 Aug 2014 18:10:12 +0000 (UTC) From: Luiz Otavio O Souza <loos@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r270238 - in stable/10: share/man/man4/man4.arm sys/arm/ti Message-ID: <201408201810.s7KIACcG039614@svn.freebsd.org>
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Author: loos Date: Wed Aug 20 18:10:12 2014 New Revision: 270238 URL: http://svnweb.freebsd.org/changeset/base/270238 Log: MFC r266960: Configure the analog input 7 which, on BBB, is connected to the 3V3B rail through a voltage divisor (R163 and R164 on page 4 of BBB schematic). Add a note about this on ti_adc(4) man page. The ti_adc(4) man page will first appear on 10.1-RELEASE. Suggested by: Sulev-Madis Silber (ketas) Manual page reviewed by: brueffer (D127) Modified: stable/10/share/man/man4/man4.arm/ti_adc.4 stable/10/sys/arm/ti/ti_adc.c stable/10/sys/arm/ti/ti_adcreg.h stable/10/sys/arm/ti/ti_adcvar.h Directory Properties: stable/10/ (props changed) Modified: stable/10/share/man/man4/man4.arm/ti_adc.4 ============================================================================== --- stable/10/share/man/man4/man4.arm/ti_adc.4 Wed Aug 20 17:57:23 2014 (r270237) +++ stable/10/share/man/man4/man4.arm/ti_adc.4 Wed Aug 20 18:10:12 2014 (r270238) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd March 21, 2014 +.Dd June 1, 2014 .Dt TI_ADC 4 .Os .Sh NAME @@ -78,8 +78,17 @@ dev.ti_adc.0.ain.6.enable: 1 dev.ti_adc.0.ain.6.open_delay: 0 dev.ti_adc.0.ain.6.samples_avg: 4 dev.ti_adc.0.ain.6.input: 2308 +dev.ti_adc.0.ain.7.enable: 1 +dev.ti_adc.0.ain.7.open_delay: 0 +dev.ti_adc.0.ain.7.samples_avg: 0 +dev.ti_adc.0.ain.7.input: 3812 .Ed .Pp +On Beaglebone-black the analog input 7 is connected to the 3V3B rail through +a voltage divisor (2:1). +The 3V3B voltage rail comes from the TL5209 LDO regulator which is limited +to 500mA maximum. +.Pp Global settings: .Bl -tag -width ".Va dev.ti_adc.0.clockdiv" .It Va dev.ti_adc.0.clockdiv @@ -112,8 +121,8 @@ It is made of a 12 bit value (0 ~ 4095). The .Nm driver first appeared in -.Fx 11.0 . +.Fx 10.1 . .Sh AUTHORS .An -nosplit The driver and this manual page was written by -.An Luiz Otavio O Souza Aq loos@FreeBSD.org +.An Luiz Otavio O Souza Aq loos@FreeBSD.org . Modified: stable/10/sys/arm/ti/ti_adc.c ============================================================================== --- stable/10/sys/arm/ti/ti_adc.c Wed Aug 20 17:57:23 2014 (r270237) +++ stable/10/sys/arm/ti/ti_adc.c Wed Aug 20 18:10:12 2014 (r270238) @@ -50,7 +50,7 @@ __FBSDID("$FreeBSD$"); #include <arm/ti/ti_adcreg.h> #include <arm/ti/ti_adcvar.h> -/* Define our 7 steps, one for each input channel. */ +/* Define our 8 steps, one for each input channel. */ static struct ti_adc_input ti_adc_inputs[TI_ADC_NPINS] = { { .stepconfig = ADC_STEPCFG1, .stepdelay = ADC_STEPDLY1 }, { .stepconfig = ADC_STEPCFG2, .stepdelay = ADC_STEPDLY2 }, @@ -59,6 +59,7 @@ static struct ti_adc_input ti_adc_inputs { .stepconfig = ADC_STEPCFG5, .stepdelay = ADC_STEPDLY5 }, { .stepconfig = ADC_STEPCFG6, .stepdelay = ADC_STEPDLY6 }, { .stepconfig = ADC_STEPCFG7, .stepdelay = ADC_STEPDLY7 }, + { .stepconfig = ADC_STEPCFG8, .stepdelay = ADC_STEPDLY8 }, }; static int ti_adc_samples[5] = { 0, 2, 4, 8, 16 }; Modified: stable/10/sys/arm/ti/ti_adcreg.h ============================================================================== --- stable/10/sys/arm/ti/ti_adcreg.h Wed Aug 20 17:57:23 2014 (r270237) +++ stable/10/sys/arm/ti/ti_adcreg.h Wed Aug 20 18:10:12 2014 (r270238) @@ -81,6 +81,8 @@ #define ADC_STEPDLY6 0x090 #define ADC_STEPCFG7 0x094 #define ADC_STEPDLY7 0x098 +#define ADC_STEPCFG8 0x09c +#define ADC_STEPDLY8 0x0a0 #define ADC_STEP_DIFF_CNTRL (1 << 25) #define ADC_STEP_RFM_MSK 0x01800000 #define ADC_STEP_RFM_SHIFT 23 Modified: stable/10/sys/arm/ti/ti_adcvar.h ============================================================================== --- stable/10/sys/arm/ti/ti_adcvar.h Wed Aug 20 17:57:23 2014 (r270237) +++ stable/10/sys/arm/ti/ti_adcvar.h Wed Aug 20 18:10:12 2014 (r270238) @@ -29,7 +29,7 @@ #ifndef _TI_ADCVAR_H_ #define _TI_ADCVAR_H_ -#define TI_ADC_NPINS 7 +#define TI_ADC_NPINS 8 #define ADC_READ4(_sc, reg) bus_read_4((_sc)->sc_mem_res, reg) #define ADC_WRITE4(_sc, reg, value) \
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