Construindo uma Distribuição Linux para central telefônica VoIP

Neste artigo iremos conhecer a placa que iremos utilizar para embarcar a central telefônica VoIP com Asterisk, e toda estrutura para gerar a Distribuição Linux utilizando Yocto Project.

Preparando o ambiente no Host

O Yocto Project suporta oficialmente as seguintes distribuições GNU/Linux como ambiente de construção:

• Ubuntu
• Fedora
• OpenSUSE
• CentOS
• Debian

Para o correto funcionamento do ecossistema Yocto Project algumas ferramentas devem ser instaladas, mais detalhes acesse Required Packages for the Host Development System.

Ubuntu and Debian

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$ sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib build-essential \
chrpath socat libsdl1.2-dev xterm

Fedora

$ sudo dnf install gawk make wget tar bzip2 gzip python unzip perl patch \
diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath \
ccache perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue perl-bignum socat \
findutils which SDL-devel xterm

OpenSUSE

$ sudo zypper install python gcc gcc-c++ git chrpath make wget python-xml \
diffstat makeinfo python-curses patch socat libSDL-devel xterm

CentOS

$ sudo yum install gawk make wget tar bzip2 gzip python unzip perl patch \
diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath socat \
perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue SDL-devel xterm

Neste momento todas as dependências estão instaladas no Host para construir a Distribuição Linux para central telefônica VoIP com Yocto Project.

A versão do Yocto Project utilizada é a 2.1 referente ao branch krogoth, a mesma para as demais camadas e utilizada no manifesto.

O Hardware

A placa utilizada para embarcar a central telefônica VoIP é a combinação de um módulo SoM Colibri i.MX6 da Toradex com uma Placa Base IRIS, algumas características vide a seguir e a placa na Figura 1:

• SoC: Freescale i.MX6 Solo (Single Core) ou DualLite (Dual Core);
• CPU: ARM Cortex-A9 @ 800MHz ~ 1GHz;
• GPU: Vivante 2D/3D GPUs;
• Memória (SDRAM): 256 MB ou 512 MB;
• Armazenamento: eMMC 4G flash ou microSD;
• Interface de rede: 10/100 Ethernet;
• Periféricos de comunicação: GPIO, SPI, I²C, I²S, UART.

O módulo SoM pode ser substituído por uma Colibri i.MX7 ou Colibri VF61 e a Placa Base também poderia ser uma Viola, porém, com poucas alterações é possível portar a Distribuição Linux da central telefônica VoIP para Raspberry Pi, Beaglebone Black e a maioria das placas com BSP de suporte no Yocto Project, visto que o principal requisito de periférico é uma interface ethernet.

Baixando o manifesto do projeto

Para facilitar a descrição das dependências e requisitos da customização da Distribuição Linux, foi criado um arquivo de manifesto descrevendo cada camada e repositório que iremos precisar para gerar o projeto. Foi utilizada a ferramenta repo do Google para gerenciar os repositórios e branchs do projeto.

Instalando a ferramenta repo:

$ mkdir ~/bin
$ PATH=~/bin:$PATH
$ curl https://commondatastorage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo

Utilizando o repo para baixar e sincronizar os repositórios e branchs, primeiro deve-se criar o diretório ippbx-yocto que irá conter a estrutura do projeto Yocto e todo processo para a construção da distribuição. Em seguida, utilizando a ferramenta repo, será clonado o repositório e realizada a sincronização.

$ mkdir ippbx-yocto
$ cd ippbx-yocto
$ repo init -u git://github.com/cleitonbueno/ippbx-yocto-manifest.git -b krogoth
$ repo sync

Esta etapa pode demorar conforme a velocidade de sua internet.

Abaixo os links para o manifesto e a camada onde estão as personalizações:

Manifesto

Camada Yocto

Construindo a imagem

Neste momento, no diretório ippbx-yocto teremos outro diretório chamado poky-krogoth onde dentro do mesmo haverá as camadas que foram baixadas pelo repo. O próximo passo é criar o projeto.

Esta etapa foi automatizada informando ao repo para usar configurações do projeto copiando o local.conf e bblayers.conf da camada meta-b2open isso através do script setup-environment. Nesta camada também existem algumas adições de receitas que precisaram de correções ou adaptações para funcionar em nosso projeto, também é utilizado para suporte a Toradex Colibri i.MX6, a meta-fsl-arm e meta-fsl-arm-extra, e para o Asterisk e ferramentas VoIP será utilizada a meta-telephony.

Executando o comando como a seguir, será criado o projeto com o nome de build-ippbx. Com as camadas já configuradas, e o local.conf corretamente configurado, neste momento pode-se construir a imagem, usando a receita ‘ippbx-image‘.

$ source setup-environment
$ bitbake ippbx-image

Será feito o download de todas dependências de pacotes, ferramentas, bibliotecas, utilitários, e o processo de build de cada item. Esta etapa pode levar vários minutos e até horas, além do kernel, bootloader e no final a imagem será criada em build-ippbx/tmp/deploy/images/colibri-imx6.

Gravando a image e realizando boot

Nesta etapa deverá ter em mãos um cartão microSD. Insira o mesmo e olhe nos logs do ‘dmesg‘ para confirmar o nome do device, algo como /dev/mmcblkX ou /dev/sdX. Em seguida, acesse build-ippbx/tmp/deploy/images/colibri-imx6/ippbx-image-colibri-imx6.sdcard.gz. Agora será feita a descompressão da imagem e na sequência a gravação para o microSD:

$ cd build-ippbx/tmp/deploy/images/colibri-imx6
$ sudo gunzip -c ippbx-image-colibri-imx6.sdcard.gz | sudo dd of=/dev/mmcblk0 bs=1M

Ao término da gravação, insira o cartão na placa base IRIS. Antes de alimentar será necessário conectar um cabo serial na Placa Base IRIS, alimentar a placa, interromper o bootloader e dizer que o boot será através do microSD. Este procedimento está descrito em detalhes no artigo Toradex Colibri iMX6 e Yocto Project Fido (1.8) na sessão Primeiro boot.

Abaixo a demonstração da interrupção do bootloader e executando a partir do microSD com `run sdboot`[linha 20] e o boot completo.

U-Boot 2016.11-2.7.2+g60021a4 (Apr 10 2017 - 03:00:00 +0200)

CPU:   Freescale i.MX6DL rev1.2 at 792 MHz
Reset cause: WDOG
I2C:   ready
DRAM:  512 MiB
PMIC:  device id: 0x10, revision id: 0x11, programmed
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
auto-detected panel vga-rgb
Display: vga-rgb (640x480)
In:    serial
Out:   serial
Err:   serial
Model: Toradex Colibri iMX6 DualLite 512MB V1.0A, Serial# 04869728
Net:   using PHY at 0
FEC [PRIME]
Hit any key to stop autoboot:  0  
Colibri iMX6 # printenv bootcmd
bootcmd=run sdboot ; run emmcboot ; echo ; echo emmcboot failed ; run distro_bootcmd ; usb start ;setenv stdout serial,vga ; setenv stdin serial,usbkbd
Colibri iMX6 # run sdboot;
Booting from SD card
reading imx6dl-colibri-eval-v3.dtb
43853 bytes read in 19 ms (2.2 MiB/s)
reading uImage
4965656 bytes read in 248 ms (19.1 MiB/s)
## Booting kernel from Legacy Image at 11000000 ...
   Image Name:   Linux-3.14.52-v2.6b2.1+g9f2723e
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    4965592 Bytes = 4.7 MiB
   Load Address: 10008000
   Entry Point:  10008000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 12000000
   Booting using the fdt blob at 0x12000000
   Loading Kernel Image ... OK
   Using Device Tree in place at 12000000, end 1200db4c


Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 3.14.52-v2.6b2.1+g9f2723e (cbueno@nb2) (gcc version 5.3.0 (GCC) ) #1 SMP Sun Jul 16 00:09:15 BRT 2017
[    0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine model: Toradex Colibri iMX6DL/S on Colibri Evaluation Board V3
[    0.000000] cma: CMA: reserved 256 MiB at 20000000
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] PERCPU: Embedded 7 pages/cpu @8fb46000 s7936 r8192 d12544 u32768
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 130048
[    0.000000] Kernel command line: enable_wait_mode=off galcore.cont consoleblank=0 vt.global_cursor_default=0 ip=off root=/dev/mmcblk1p2 rw,noatime rootfstype=ext4 rootwait fec_mac=00:14:2d:4a:4e:60 consoleblank=0 no_console_suspend=1 console=ttymxc0,115200n8 logo.nologo video=mxcfb0:dev=lcd,EDT-WVGA,if=RGB666 video=mxcfb1:off fbmem=8M
[    0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 247340K/524288K available (6391K kernel code, 271K rwdata, 2116K rodata, 327K init, 416K bss, 276948K reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     vmalloc : 0xa0800000 - 0xff000000   (1512 MB)
[    0.000000]     lowmem  : 0x80000000 - 0xa0000000   ( 512 MB)
[    0.000000]     pkmap   : 0x7fe00000 - 0x80000000   (   2 MB)
[    0.000000]     modules : 0x7f000000 - 0x7fe00000   (  14 MB)
[    0.000000]       .text : 0x80008000 - 0x8085704c   (8509 kB)
[    0.000000]       .init : 0x80858000 - 0x808a9f00   ( 328 kB)
[    0.000000]       .data : 0x808aa000 - 0x808edd00   ( 272 kB)
[    0.000000]        .bss : 0x808edd08 - 0x80955d98   ( 417 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000] 	RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] L310 cache controller enabled
[    0.000000] l2x0: 16 ways, CACHE_ID 0x410000c8, AUX_CTRL 0x32450000, Cache size: 512 kB
[    0.000000] failed to set parent of clk gpu2d_core_sel to pll2_pfd1_594m: -22
[    0.000000] Switching to timer-based delay loop
[    0.000007] sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 1431655765682ns
[    0.000877] Console: colour dummy device 80x30
[    0.000899] Calibrating delay loop (skipped), value calculated using timer frequency.. 6.00 BogoMIPS (lpj=30000)
[    0.000912] pid_max: default: 32768 minimum: 301
[    0.001077] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.001090] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.007970] Initializing cgroup subsys debug
[    0.007989] Initializing cgroup subsys freezer
[    0.008026] CPU: Testing write buffer coherency: ok
[    0.008341] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.008407] Setting up static identity map for 0x10643f20 - 0x10643f78
[    0.009990] CPU1: Booted secondary processor
[    0.010021] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.010135] Brought up 2 CPUs
[    0.010157] SMP: Total of 2 processors activated (12.00 BogoMIPS).
[    0.010166] CPU: All CPU(s) started in SVC mode.
[    0.010788] devtmpfs: initialized
[    0.014507] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[    0.014835] pinctrl core: initialized pinctrl subsystem
[    0.015163] regulator-dummy: no parameters
[    0.036336] NET: Registered protocol family 16
[    0.043903] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.044584] cpuidle: using governor ladder
[    0.044595] cpuidle: using governor menu
[    0.044832] CPU identified as i.MX6DL, silicon rev 1.2
[    0.044938] Use WDOG1 as reset source
[    0.054177] syscon 20c8000.anatop: regmap [mem 0x020c8000-0x020c8fff] registered
[    0.054498] vdd1p1: 800 <--> 1375 mV at 1100 mV 
[    0.054889] vdd3p0: 2625 <--> 3400 mV at 3000 mV 
[    0.055239] vdd2p5: 2000 <--> 2750 mV at 2400 mV 
[    0.055596] vddarm: 725 <--> 1450 mV at 1150 mV 
[    0.060549] vddpu: 725 <--> 1450 mV at 1150 mV 
[    0.060947] vddsoc: 725 <--> 1450 mV at 1175 mV 
[    0.063115] syscon 20e0000.iomuxc-gpr: regmap [mem 0x020e0000-0x020e0037] registered
[    0.065886] syscon 21bc000.ocotp-ctrl: regmap [mem 0x021bc000-0x021bffff] registered
[    0.070071] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[    0.070084] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.072305] imx6dl-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
[    0.080201] bio: create slab <bio-0> at 0
[    0.081019] 1P8V: 1800 mV 
[    0.081238] 2P5V: 2500 mV 
[    0.081463] 3P3V: 3300 mV 
[    0.081765] usb_host_vbus: 5000 mV 
[    0.082102] vgaarb: loaded
[    0.082796] SCSI subsystem initialized
[    0.083274] usbcore: registered new interface driver usbfs
[    0.083343] usbcore: registered new interface driver hub
[    0.083443] usbcore: registered new device driver usb
[    0.084431] i2c-gpio i2c.16: using pins 109 (SDA) and 108 (SCL)
[    0.086763] stmpe-i2c 1-0041: stmpe811 detected, chip id: 0x811
[    0.088753] i2c i2c-1: IMX I2C adapter registered
[    0.089492] i2c i2c-2: IMX I2C adapter registered
[    0.089630] Linux video capture interface: v2.00
[    0.089677] pps_core: LinuxPPS API ver. 1 registered
[    0.089685] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.089707] PTP clock support registered
[    0.100590] imx-ipuv3 2400000.ipu: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
[    0.101749] MIPI CSI2 driver module loaded
[    0.101965] Advanced Linux Sound Architecture Driver Initialized.
[    0.103554] Switched to clocksource mxc_timer1
[    0.113675] NET: Registered protocol family 2
[    0.114561] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[    0.114610] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[    0.114677] TCP: Hash tables configured (established 4096 bind 4096)
[    0.114721] TCP: reno registered
[    0.114735] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    0.114758] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    0.114988] NET: Registered protocol family 1
[    0.115276] RPC: Registered named UNIX socket transport module.
[    0.115287] RPC: Registered udp transport module.
[    0.115294] RPC: Registered tcp transport module.
[    0.115301] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.115921] hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
[    0.116913] imx rpmsg driver is registered.
[    0.117685] Bus freq driver module loaded
[    0.118457] futex hash table entries: 512 (order: 3, 32768 bytes)
[    0.124850] VFS: Disk quotas dquot_6.5.2
[    0.125114] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.126716] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.127439] NFS: Registering the id_resolver key type
[    0.127476] Key type id_resolver registered
[    0.127484] Key type id_legacy registered
[    0.128130] fuse init (API version 7.22)
[    0.128670] msgmni has been set to 995
[    0.131661] io scheduler noop registered
[    0.131673] io scheduler deadline registered
[    0.131854] io scheduler cfq registered (default)
[    0.133752] imx-weim 21b8000.weim: Driver registered.
[    0.135935] backlight.15 supply power not found, using dummy regulator
[    0.137924] MIPI DSI driver module loaded
[    0.139475] mxc_sdc_fb fb.18: registered mxc display driver lcd
[    0.141879] mxc_sdc_fb fb.18: 800x480 h_sync,r,l: 128,40,88  v_sync,l,u: 2,10,33 pixclock=33260000 Hz
[    0.186807] mxc_sdc_fb fb.18: 800x480 h_sync,r,l: 128,40,88  v_sync,l,u: 2,10,33 pixclock=33260000 Hz
[    0.207176] Console: switching to colour frame buffer device 100x30
[    0.242649] mxc_sdc_fb fb.19: mxcfb1 is turned off!
[    0.253242] imx_epdc_fb 20f4000.epdc: can't get/select pinctrl
[    0.255407] imx-sdma 20ec000.sdma: no iram assigned, using external mem
[    0.255653] imx-sdma 20ec000.sdma: no event needs to be remapped
[    0.255842] imx-sdma 20ec000.sdma: loaded firmware 3.2
[    0.258643] imx-sdma 20ec000.sdma: initialized
[    0.260318] pfuze100-regulator 1-0008: Full layer: 1, Metal layer: 1
[    0.260931] pfuze100-regulator 1-0008: FAB: 0, FIN: 0
[    0.260947] pfuze100-regulator 1-0008: pfuze100 found.
[    0.262423] SW1AB: 300 <--> 1875 mV at 1375 mV 
[    0.263864] SW1C: 300 <--> 1875 mV at 1375 mV 
[    0.264631] SW2: at 1000 mV 
[    0.265413] SW3A: 400 <--> 1975 mV at 1500 mV 
[    0.266163] SW3B: at 1500 mV 
[    0.266908] SW4: at 1000 mV 
[    0.267661] SWBST: 5000 <--> 5150 mV at 5000 mV 
[    0.268445] VSNVS: 1000 <--> 3000 mV at 3000 mV 
[    0.268597] VREFDDR: 750 mV 
[    0.269330] VGEN1: at 1500 mV 
[    0.270102] VGEN2: 800 <--> 1550 mV at 1500 mV 
[    0.270865] VGEN3: at 3000 mV 
[    0.271632] VGEN4: 1800 <--> 3300 mV at 1800 mV 
[    0.272410] VGEN5: 1800 <--> 3300 mV at 2500 mV 
[    0.273174] VGEN6: 1800 <--> 3300 mV at 2800 mV 
[    0.273468] Serial: IMX driver
[    0.273949] 2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 58, base_baud = 5000000) is a IMX
[    1.139496] console [ttymxc0] enabled
[    1.144165] 21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 59, base_baud = 5000000) is a IMX
[    1.153339] 21ec000.serial: ttymxc2 at MMIO 0x21ec000 (irq = 60, base_baud = 5000000) is a IMX
[    1.162349] serial: Freescale lpuart driver
[    1.167054] imx sema4 driver is registered.
[    1.171315] [drm] Initialized drm 1.1.0 20060810
[    1.176348] [drm] Initialized vivante 1.0.0 20120216 on minor 0
[    1.189642] brd: module loaded
[    1.196747] loop: module loaded
[    1.203171] spi_imx 2014000.ecspi: probed
[    1.208110] vcan: Virtual CAN interface driver
[    1.212569] CAN device driver interface
[    1.216614] spi3.0 supply vdd not found, using dummy regulator
[    1.222513] spi3.0 supply xceiver not found, using dummy regulator
[    1.733875] random: nonblocking pool is initialized
[    2.233582] mcp251x spi3.0: MCP251x didn't enter in conf mode after reset
[    2.241800] 2188000.ethernet supply phy not found, using dummy regulator
[    2.249018] pps pps0: new PPS source ptp0
[    2.257113] libphy: fec_enet_mii_bus: probed
[    2.261904] fec 2188000.ethernet eth0: registered PHC device 0
[    2.268118] usbcore: registered new interface driver asix
[    2.273609] usbcore: registered new interface driver ax88179_178a
[    2.279756] usbcore: registered new interface driver cdc_ether
[    2.285655] usbcore: registered new interface driver net1080
[    2.291365] usbcore: registered new interface driver cdc_subset
[    2.297357] usbcore: registered new interface driver zaurus
[    2.303011] usbcore: registered new interface driver cdc_ncm
[    2.308696] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    2.315245] ehci-pci: EHCI PCI platform driver
[    2.319814] usbcore: registered new interface driver usb-storage
[    2.325953] usbcore: registered new interface driver usbserial
[    2.331833] usbcore: registered new interface driver usbserial_generic
[    2.338425] usbserial: USB Serial support registered for generic
[    2.344492] usbcore: registered new interface driver ftdi_sio
[    2.350277] usbserial: USB Serial support registered for FTDI USB Serial Device
[    2.357652] usbcore: registered new interface driver pl2303
[    2.363265] usbserial: USB Serial support registered for pl2303
[    2.370276] 2184800.usbmisc supply vbus-wakeup not found, using dummy regulator
[    2.378539] imx_usb 2184000.usb: Can't register ci_hdrc platform device, err=-517
[    2.386077] platform 2184000.usb: Driver imx_usb requests probe deferral
[    2.396225] ci_hdrc ci_hdrc.0: doesn't support gadget
[    2.401305] ci_hdrc ci_hdrc.0: EHCI Host Controller
[    2.406236] ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
[    2.423593] ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00
[    2.429810] hub 1-0:1.0: USB hub found
[    2.433667] hub 1-0:1.0: 1 port detected
[    2.438463] mousedev: PS/2 mouse device common for all mice
[    2.453223] input: stmpe-ts as /devices/soc0/soc.0/2100000.aips-bus/21a4000.i2c/i2c-1/1-0041/stmpe-ts/input/input0
[    2.467182] rtc-ds1307 2-0068: rtc core: registered m41t00 as rtc0
[    2.473639] snvs_rtc 20cc034.snvs-rtc-lp: can't get snvs-rtc clock
[    2.479999] check_alarm_past: alarm in the past
[    2.484779] snvs_rtc 20cc034.snvs-rtc-lp: rtc core: registered 20cc034.snvs-rtc-lp as rtc1
[    2.493180] i2c /dev entries driver
[    2.497879] mxc_v4l2_output v4l2_out.27: V4L2 device registered as video16
[    2.504955] mxc_v4l2_output v4l2_out.27: V4L2 device registered as video17
[    2.512120] i2c-core: driver [mag3110] using legacy suspend method
[    2.518333] i2c-core: driver [mag3110] using legacy resume method
[    2.524904] imx2-wdt 20bc000.wdog: IMX2+ Watchdog Timer enabled. timeout=60s (nowayout=0)
[    2.533404] sdhci: Secure Digital Host Controller Interface driver
[    2.539614] sdhci: Copyright(c) Pierre Ossman
[    2.543996] sdhci-pltfm: SDHCI platform and OF driver helper
[    2.550928] mmc1: no vqmmc regulator found
[    2.593587] mmc1: SDHCI controller on 2190000.usdhc [2190000.usdhc] using ADMA
[    2.605752] mmc0: no vqmmc regulator found
[    2.651226] mmc1: host does not support reading read-only switch. assuming write-enable.
[    2.653586] mmc0: SDHCI controller on 2198000.usdhc [2198000.usdhc] using ADMA
[    2.654224] mxc_vdoa 21e4000.vdoa: i.MX Video Data Order Adapter(VDOA) driver probed
[    2.674663] mxc_vpu 2040000.vpu: VPU initialized
[    2.683486] mmc1: new high speed SDHC card at address 0007
[    2.689471] mmcblk1: mmc1:0007 SS08G 7.21 GiB 
[    2.695267]  mmcblk1: p1 p2
[    2.787987] mmc0: BKOPS_EN bit is not set
[    2.806817] mmc0: new high speed DDR MMC card at address 0001
[    2.823615] mmcblk0: mmc0:0001 004GE0 3.68 GiB 
[    2.828393] mmcblk0boot0: mmc0:0001 004GE0 partition 1 2.00 MiB
[    2.834590] mmcblk0boot1: mmc0:0001 004GE0 partition 2 2.00 MiB
[    2.841645]  mmcblk0: p1 p2
[    2.846993]  mmcblk0boot1: unknown partition table
[    2.853927]  mmcblk0boot0: unknown partition table
[    2.931858] caam 2100000.caam: Instantiated RNG4 SH0
[    3.181772] caam 2100000.caam: Instantiated RNG4 SH1
[    3.186771] caam 2100000.caam: device ID = 0x0a160100 (Era 4)
[    3.192529] caam 2100000.caam: job rings = 2, qi = 0
[    3.256788] caam algorithms registered in /proc/crypto
[    3.265705] caam_jr 2101000.jr0: registering rng-caam
[    3.271651] platform caam_sm: blkkey_ex: 4 keystore units available
[    3.278200] platform caam_sm: 64-bit clear key:
[    3.282749] platform caam_sm: [0000] 00 01 02 03 04 0f 06 07
[    3.288447] platform caam_sm: 64-bit black key:
[    3.292993] platform caam_sm: [0000] 83 1c ab ef 17 95 6d 6a
[    3.298681] platform caam_sm: [0008] ca 1f 98 ac c2 62 6f c7
[    3.304398] platform caam_sm: 128-bit clear key:
[    3.309033] platform caam_sm: [0000] 00 01 02 03 04 0f 06 07
[    3.314753] platform caam_sm: [0008] 08 09 0a 0b 0c 0d 0e 0f
[    3.320425] platform caam_sm: 128-bit black key:
[    3.325095] platform caam_sm: [0000] 78 e5 de b1 33 81 65 6e
[    3.330771] platform caam_sm: [0008] 00 cd 08 d7 96 33 88 94
[    3.336473] platform caam_sm: 192-bit clear key:
[    3.341104] platform caam_sm: [0000] 00 01 02 03 04 0f 06 07
[    3.346812] platform caam_sm: [0008] 08 09 0a 0b 0c 0d 0e 0f
[    3.352486] platform caam_sm: [0016] 10 11 12 13 14 15 16 17
[    3.358189] platform caam_sm: 192-bit black key:
[    3.362824] platform caam_sm: [0000] f5 90 c2 ca 9d b5 73 a9
[    3.368529] platform caam_sm: [0008] a0 03 10 92 7b 41 88 86
[    3.374252] platform caam_sm: [0016] 72 31 d2 b4 5c 00 01 98
[    3.379928] platform caam_sm: [0024] 83 a1 7a 0a 5f 00 c1 e8
[    3.385620] platform caam_sm: 256-bit clear key:
[    3.390252] platform caam_sm: [0000] 00 01 02 03 04 0f 06 07
[    3.395939] platform caam_sm: [0008] 08 09 0a 0b 0c 0d 0e 0f
[    3.401613] platform caam_sm: [0016] 10 11 12 13 14 15 16 17
[    3.407297] platform caam_sm: [0024] 18 19 1a 1b 1c 1d 1e 1f
[    3.412966] platform caam_sm: 256-bit black key:
[    3.417608] platform caam_sm: [0000] aa 28 6b 72 31 20 0c bc
[    3.423281] platform caam_sm: [0008] 6c 6b c6 38 2f 6f 35 c9
[    3.428964] platform caam_sm: [0016] 0b 02 2b 19 32 e7 d4 d6
[    3.434649] platform caam_sm: [0024] 8a 49 d9 ef 29 32 ec 0c
[    3.440319] platform caam_sm: 64-bit unwritten blob:
[    3.445311] platform caam_sm: [0000] 00 00 00 00 00 00 00 00
[    3.450983] platform caam_sm: [0008] 00 00 00 00 00 00 00 00
[    3.456670] platform caam_sm: [0016] 00 00 00 00 00 00 00 00
[    3.462341] platform caam_sm: [0024] 00 00 00 00 00 00 00 00
[    3.468025] platform caam_sm: [0032] 00 00 00 00 00 00 00 00
[    3.473718] platform caam_sm: [0040] 00 00 00 00 00 00 00 00
[    3.479392] platform caam_sm: [0048] 00 00 00 00 00 00 00 00
[    3.485080] platform caam_sm: [0056] 00 00 00 00 00 00 00 00
[    3.490752] platform caam_sm: [0064] 00 00 00 00 00 00 00 00
[    3.496439] platform caam_sm: [0072] 00 00 00 00 00 00 00 00
[    3.502110] platform caam_sm: [0080] 00 00 00 00 00 00 00 00
[    3.507795] platform caam_sm: [0088] 00 00 00 00 00 00 00 00
[    3.513463] platform caam_sm: 128-bit unwritten blob:
[    3.518542] platform caam_sm: [0000] 00 00 00 00 00 00 00 00
[    3.524229] platform caam_sm: [0008] 00 00 00 00 00 00 00 00
[    3.529900] platform caam_sm: [0016] 00 00 00 00 00 00 00 00
[    3.535584] platform caam_sm: [0024] 00 00 00 00 00 00 00 00
[    3.541255] platform caam_sm: [0032] 00 00 00 00 00 00 00 00
[    3.546938] platform caam_sm: [0040] 00 00 00 00 00 00 00 00
[    3.552609] platform caam_sm: [0048] 00 00 00 00 00 00 00 00
[    3.558294] platform caam_sm: [0056] 00 00 00 00 00 00 00 00
[    3.563979] platform caam_sm: [0064] 00 00 00 00 00 00 00 00
[    3.569651] platform caam_sm: [0072] 00 00 00 00 00 00 00 00
[    3.575337] platform caam_sm: [0080] 00 00 00 00 00 00 00 00
[    3.581010] platform caam_sm: [0088] 00 00 00 00 00 00 00 00
[    3.586690] platform caam_sm: 196-bit unwritten blob:
[    3.591754] platform caam_sm: [0000] 00 00 00 00 00 00 00 00
[    3.597437] platform caam_sm: [0008] 00 00 00 00 00 00 00 00
[    3.603109] platform caam_sm: [0016] 00 00 00 00 00 00 00 00
[    3.608794] platform caam_sm: [0024] 00 00 00 00 00 00 00 00
[    3.614479] platform caam_sm: [0032] 00 00 00 00 00 00 00 00
[    3.620150] platform caam_sm: [0040] 00 00 00 00 00 00 00 00
[    3.625835] platform caam_sm: [0048] 00 00 00 00 00 00 00 00
[    3.631507] platform caam_sm: [0056] 00 00 00 00 00 00 00 00
[    3.637192] platform caam_sm: [0064] 00 00 00 00 00 00 00 00
[    3.642863] platform caam_sm: [0072] 00 00 00 00 00 00 00 00
[    3.648547] platform caam_sm: [0080] 00 00 00 00 00 00 00 00
[    3.654231] platform caam_sm: [0088] 00 00 00 00 00 00 00 00
[    3.659899] platform caam_sm: 256-bit unwritten blob:
[    3.664975] platform caam_sm: [0000] 00 00 00 00 00 00 00 00
[    3.670646] platform caam_sm: [0008] 00 00 00 00 00 00 00 00
[    3.676335] platform caam_sm: [0016] 00 00 00 00 00 00 00 00
[    3.682009] platform caam_sm: [0024] 00 00 00 00 00 00 00 00
[    3.687693] platform caam_sm: [0032] 00 00 00 00 00 00 00 00
[    3.693366] platform caam_sm: [0040] 00 00 00 00 00 00 00 00
[    3.699050] platform caam_sm: [0048] 00 00 00 00 00 00 00 00
[    3.704736] platform caam_sm: [0056] 00 00 00 00 00 00 00 00
[    3.710408] platform caam_sm: [0064] 00 00 00 00 00 00 00 00
[    3.716092] platform caam_sm: [0072] 00 00 00 00 00 00 00 00
[    3.721763] platform caam_sm: [0080] 00 00 00 00 00 00 00 00
[    3.727446] platform caam_sm: [0088] 00 00 00 00 00 00 00 00
[    3.733369] platform caam_sm: 64-bit black key in blob:
[    3.738647] platform caam_sm: [0000] 06 05 99 bd a8 e6 bd 2f
[    3.744340] platform caam_sm: [0008] ec 2d cb 3e 19 38 37 73
[    3.750014] platform caam_sm: [0016] 5b 34 75 94 be 91 20 29
[    3.755700] platform caam_sm: [0024] f0 99 61 3d 90 cf 57 76
[    3.761375] platform caam_sm: [0032] 26 a2 c7 bb ed bc 7c 5d
[    3.767059] platform caam_sm: [0040] e9 07 11 8c 2d 7b 49 1f
[    3.772730] platform caam_sm: [0048] 56 f9 7d 90 a7 40 3e 0b
[    3.778424] platform caam_sm: [0056] 00 00 00 00 00 00 00 00
[    3.784111] platform caam_sm: [0064] 00 00 00 00 00 00 00 00
[    3.789784] platform caam_sm: [0072] 00 00 00 00 00 00 00 00
[    3.795468] platform caam_sm: [0080] 00 00 00 00 00 00 00 00
[    3.801139] platform caam_sm: [0088] 00 00 00 00 00 00 00 00
[    3.806821] platform caam_sm: 128-bit black key in blob:
[    3.812149] platform caam_sm: [0000] de 8c a0 74 d5 66 07 00
[    3.817835] platform caam_sm: [0008] f8 3e b5 a3 a4 04 b1 66
[    3.823507] platform caam_sm: [0016] f2 44 24 19 9a bf a7 06
[    3.829191] platform caam_sm: [0024] c3 4c db 90 4e 97 d9 fb
[    3.834876] platform caam_sm: [0032] b4 15 fc e5 34 2b e0 24
[    3.840548] platform caam_sm: [0040] e9 02 e6 2b 0d 2e 72 4f
[    3.846232] platform caam_sm: [0048] 96 35 52 77 8b 71 6a d1
[    3.851904] platform caam_sm: [0056] 9d f2 e6 e3 d4 b1 65 07
[    3.857588] platform caam_sm: [0064] 00 00 00 00 00 00 00 00
[    3.863259] platform caam_sm: [0072] 00 00 00 00 00 00 00 00
[    3.868943] platform caam_sm: [0080] 00 00 00 00 00 00 00 00
[    3.874634] platform caam_sm: [0088] 00 00 00 00 00 00 00 00
[    3.880306] platform caam_sm: 192-bit black key in blob:
[    3.885646] platform caam_sm: [0000] a4 bf 8a dd 03 06 d0 ca
[    3.891318] platform caam_sm: [0008] 1a 86 ca 16 bb ee 04 e0
[    3.897002] platform caam_sm: [0016] 0f e4 03 b8 ee aa 00 c2
[    3.902676] platform caam_sm: [0024] 96 1c db 6d 5a c3 75 97
[    3.908361] platform caam_sm: [0032] d4 37 c5 23 de 3a 90 cf
[    3.914047] platform caam_sm: [0040] 67 94 2f 05 f1 a8 31 fe
[    3.919718] platform caam_sm: [0048] f0 bb 62 77 b5 3f 56 c1
[    3.925403] platform caam_sm: [0056] 07 69 b4 4e b0 43 81 a5
[    3.931076] platform caam_sm: [0064] 9f 0d 81 42 4b 72 f0 a6
[    3.936759] platform caam_sm: [0072] 00 00 00 00 00 00 00 00
[    3.942430] platform caam_sm: [0080] 00 00 00 00 00 00 00 00
[    3.948117] platform caam_sm: [0088] 00 00 00 00 00 00 00 00
[    3.953799] platform caam_sm: 256-bit black key in blob:
[    3.959125] platform caam_sm: [0000] 9e db 44 c1 93 b5 d0 2d
[    3.964809] platform caam_sm: [0008] 8d ee 99 37 e5 85 84 7c
[    3.970482] platform caam_sm: [0016] 96 1f 4b fa ab bf c7 80
[    3.976167] platform caam_sm: [0024] b2 97 c5 5a 3a e8 03 64
[    3.981840] platform caam_sm: [0032] 3f 61 47 de 5f 1f 06 7f
[    3.987525] platform caam_sm: [0040] c3 91 b1 b5 8c 8a f2 9c
[    3.993197] platform caam_sm: [0048] 3f a1 41 d1 c1 be f6 62
[    3.998881] platform caam_sm: [0056] 60 07 87 d6 58 a0 dc b5
[    4.004568] platform caam_sm: [0064] 24 2f c2 74 c2 ee b4 ed
[    4.010240] platform caam_sm: [0072] 21 f2 30 43 41 71 94 6c
[    4.015923] platform caam_sm: [0080] 00 00 00 00 00 00 00 00
[    4.021596] platform caam_sm: [0088] 00 00 00 00 00 00 00 00
[    4.027507] platform caam_sm: restored 64-bit black key:
[    4.032838] platform caam_sm: [0000] 60 bb b5 b1 22 b1 2d 5e
[    4.038548] platform caam_sm: [0008] 5c df e2 33 14 bd 04 6c
[    4.044244] platform caam_sm: restored 128-bit black key:
[    4.049657] platform caam_sm: [0000] 78 e5 de b1 33 81 65 6e
[    4.055349] platform caam_sm: [0008] 00 cd 08 d7 96 33 88 94
[    4.061018] platform caam_sm: restored 192-bit black key:
[    4.066447] platform caam_sm: [0000] f5 90 c2 ca 9d b5 73 a9
[    4.072121] platform caam_sm: [0008] a0 03 10 92 7b 41 88 86
[    4.077814] platform caam_sm: [0016] 18 ed b3 35 a6 4f c1 ad
[    4.083487] platform caam_sm: [0024] 5d e8 93 75 ef 4e c2 56
[    4.089169] platform caam_sm: restored 256-bit black key:
[    4.094594] platform caam_sm: [0000] aa 28 6b 72 31 20 0c bc
[    4.100265] platform caam_sm: [0008] 6c 6b c6 38 2f 6f 35 c9
[    4.105949] platform caam_sm: [0016] 0b 02 2b 19 32 e7 d4 d6
[    4.111621] platform caam_sm: [0024] 8a 49 d9 ef 29 32 ec 0c
[    4.117618] snvs-secvio 20cc000.caam-snvs: can't get snvs clock
[    4.123608] snvs-secvio 20cc000.caam-snvs: violation handlers armed - non-secure state
[    4.131757] hidraw: raw HID events driver (C) Jiri Kosina
[    4.137336] usbcore: registered new interface driver usbhid
[    4.142919] usbhid: USB HID core driver
[    4.152496] stmpe-adc stmpe-adc: Initialized
[    4.159621] sgtl5000 1-000a: sgtl5000 revision 0x11
[    4.192110] fsl-hdmi-dai hdmi_audio.3: failed to probe. Load HDMI-video first.
[    4.199385] fsl-hdmi-dai: probe of hdmi_audio.3 failed with error -12
[    4.206722] 1-000a: 1200 mV normal 
[    4.210285] sgtl5000 1-000a: Using internal LDO instead of VDDD
[    4.227872] imx-sgtl5000 sound.25: sgtl5000 <-> 2028000.ssi mapping ok
[    4.236718] imx-audio-hdmi sound-hdmi.26: initialize HDMI-audio failed. load HDMI-video first!
[    4.245700] TCP: cubic registered
[    4.249575] NET: Registered protocol family 10
[    4.255039] sit: IPv6 over IPv4 tunneling driver
[    4.260272] NET: Registered protocol family 17
[    4.264781] can: controller area network core (rev 20120528 abi 9)
[    4.271039] NET: Registered protocol family 29
[    4.275515] can: raw protocol (rev 20120528)
[    4.279798] can: broadcast manager protocol (rev 20120528 t)
[    4.285490] can: netlink gateway (rev 20130117) max_hops=1
[    4.291362] Key type dns_resolver registered
[    4.296304] failed to disable 1.2 GHz OPP
[    4.301126] Registering SWP/SWPB emulation handler
[    4.306956] SW4: disabling
[    4.309679] SW3B: disabling
[    4.312482] SW2: disabling
[    4.315667] regulator-dummy: disabling
[    4.319630] imx mcc test is registered.
[    4.324051] 2184000.usb supply vbus not found, using dummy regulator
[    4.333954] ci_hdrc ci_hdrc.1: EHCI Host Controller
[    4.338858] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 2
[    4.363602] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
[    4.369694] hub 2-0:1.0: USB hub found
[    4.373484] hub 2-0:1.0: 1 port detected
[    4.378576] input: gpio-keys.29 as /devices/soc0/gpio-keys.29/input/input1
[    4.387093] rtc-ds1307 2-0068: setting system clock to 2017-07-16 04:02:04 UTC (1500177724)
[    4.403370] ALSA device list:
[    4.406437]   #0: imx6-colibri-sgtl5000
[    4.421048] EXT4-fs (mmcblk1p2): INFO: recovery required on readonly filesystem
[    4.428413] EXT4-fs (mmcblk1p2): write access will be enabled during recovery
[    4.506762] EXT4-fs (mmcblk1p2): recovery complete
[    4.518132] EXT4-fs (mmcblk1p2): mounted filesystem with ordered data mode. Opts: (null)
[    4.526369] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    4.539544] devtmpfs: mounted
[    4.543126] Freeing unused kernel memory: 324K (80858000 - 808a9000)
INIT: version 2.88 booting
Starting udev
[    5.082160] udevd[171]: starting version 3.1.5
[    5.296401] EXT4-fs (mmcblk1p2): re-mounted. Opts: (null)
bootlogd: cannot allocate pseudo tty: No such file or directory
ALSA: Restoring mixer settings...
INIT: Entering runlevel: 5
Configuring network interfaces... [    5.973762] fec 2188000.ethernet eth0: Freescale FEC PHY driver [Micrel KSZ8041] (mii_bus:phy_addr=2188000.ethernet:00, irq=-1)
[    5.985502] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
done.
Starting system message bus: dbus.
Starting Dropbear SSH server: dropbear.
Starting rpcbind daemon...done.
Starting syslogd/klogd: done
 * Starting Avahi mDNS/DNS-SD Daemon: avahi-daemon
   ...done.
Starting Telephony daemon

Poky (Yocto Project Reference Distro) 2.1.3 trdx-voip /dev/ttymxc0

trdx-voip login:

Navegando pelo sistema e verificando o uso atual com o serviço Asterisk.

root@trdx-voip:~# df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root               336.7M     76.9M    238.0M  24% /
devtmpfs                120.8M         0    120.8M   0% /dev
tmpfs                   248.9M    148.0K    248.8M   0% /run
tmpfs                   248.9M     92.0K    248.8M   0% /var/volatile
root@trdx-voip:~#
root@trdx-voip:~# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:14:2D:4A:4E:60  
          inet addr:10.10.10.254  Bcast:10.10.10.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

root@trdx-voip:~# free -m
              total        used        free      shared  buff/cache   available
Mem:            497          14         453           0          30         468
Swap:             0           0           0
root@trdx-voip:~# pgrep asterisk
317
root@trdx-voip:~# top -p 317
Tasks:   1 total,   0 running,   1 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem :   509808 total,   463404 free,    14556 used,    31848 buff/cache
KiB Swap:        0 total,        0 free,        0 used.   479764 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                                                             
  317 root      21   1   47976  12492   6476 S   2.0  2.5   0:03.77 asterisk

O sistema pode ser acessado via SSH, o IP da Central Telefônica para o artigo é 10.10.10.254 e o usuário root e senha em branco.

Até a próxima!