Bluetooth integration with IMX6Q Processor

sanketparekh — Tue, 06 Mar 2018 12:09:01 GMT

Greetings,

I have custom board, that board have IMX6Q processor. I have on board chip of Wi-Fi + BLE. I have used Marvel kernel drivers for Wi-Fi as well as BLE. During system bootup i got below logs for download the firmware in that Wi-Fi chip.

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vendor=0x02DF device=0x9135 class=0 function=1
SDIO: max_segs=128 max_seg_size=65535
rx_work=1 cpu_num=4
wlan: Enable TX SG mode
wlan: Enable RX SG mode
Request firmware: mrvl/sduart8887_combo_a2.bin
WLAN FW already running! Skip FW download
WLAN FW is active
ov5640_mipi 1-003e: no sensor pwdn pin available
ov5640_mipi: probe of 1-003e failed with error -22
imx6q-pinctrl 20e0000.iomuxc: pin MX6Q_PAD_CSI0_DAT12 already requested by 21f0000.serial; cannot claim for 1-003d
imx6q-pinctrl 20e0000.iomuxc: pin-162 (1-003d) status -22
imx6q-pinctrl 20e0000.iomuxc: could not request pin 162 (MX6Q_PAD_CSI0_DAT12) from group i2c2-ov5642grp on device 20e0000.iomuxc
ov5642 1-003d: Error applying setting, reverse things back
imx6q-pinctrl 20e0000.iomuxc: pin MX6Q_PAD_CSI0_DAT12 already requested by 21f0000.serial; cannot claim for 1-003d
imx6q-pinctrl 20e0000.iomuxc: pin-162 (1-003d) status -22
imx6q-pinctrl 20e0000.iomuxc: could not request pin 162 (MX6Q_PAD_CSI0_DAT12) from group i2c2-ov5642grp on device 20e0000.iomuxc
ov5642 1-003d: Error applying setting, reverse things back
ov5642 1-003d: ov5642 setup pinctrl failed!
ov5642: probe of 1-003d failed with error -22
mxc_v4l_open: Mxc Camera no sensor ipu0/csi0
mxc_v4l_open: Mxc Camera no sensor ipu0/csi0
mxc_v4l_open: Mxc Camera no sensor ipu1/csi0
mxc_v4l_open: Mxc Camera no sensor ipu1/csi1
EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Opts: (null)
Timeout cmd id (1520327262.298414) = 0xa9, act = 0x0
a9 00 08 00 01 00 00 00 00 00 00 00 00 00 00 00
BSS type = 0 BSS role= 0
------------Dump info-----------
Commmand Timeout
pending command id: 0x3 ioctl_buf= (null)
No pending scan command
mlan_processing =0
main_lock_flag =0
main_process_cnt =2
delay_task_flag =0
mlan_rx_processing =0
rx_pkts_queued=0
more_task_flag = 0
num_cmd_timeout = 1
dbg.num_cmd_timeout = 1
last_cmd_index = 1
last_cmd_id = 0x0 0xa9 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0
last_cmd_act = 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0
last_cmd_resp_index = 0
last_cmd_resp_id = 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0
last_event_index = 0
last_event = 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0
num_data_h2c_failure = 0
num_cmd_h2c_failure = 0
num_data_c2h_failure = 0
num_cmdevt_c2h_failure = 0
num_int_read_failure = 0
last_int_status = 128
num_alloc_buffer_failure = 0
num_pkt_dropped = 0
num_no_cmd_node = 0
num_event_deauth = 0
num_event_disassoc = 0
num_event_link_lost = 0
num_cmd_deauth = 0
num_cmd_assoc_success = 0
num_cmd_assoc_failure = 0
cmd_resp_received=0
event_received=0
max_tx_buf_size=2048
tx_buf_size=2048
curr_tx_buf_size=2048
data_sent=1 cmd_sent=0
ps_mode=1 ps_state=0
wakeup_dev_req=0 wakeup_tries=0
hs_configured=0 hs_activated=0
pps_uapsd_mode=0 sleep_pd=0
tx_lock_flag = 0
scan_processing = 0
mp_rd_bitmap=0x0 curr_rd_port=0x0
mp_wr_bitmap=0x0 curr_wr_port=0x0
mp_invalid_update=0
last_recv_wr_bitmap=0x0 last_mp_index=0
mp_wr_bitmap: 0x0 mp_wr_ports=0x0 len=0 curr_wr_port=0x0
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
mp_wr_bitmap: 0x0 mp_wr_ports=0x0 len=0 curr_wr_port=0x0
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
mp_wr_bitmap: 0x0 mp_wr_ports=0x0 len=0 curr_wr_port=0x0
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
mp_wr_bitmap: 0x0 mp_wr_ports=0x0 len=0 curr_wr_port=0x0
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
mp_wr_bitmap: 0x0 mp_wr_ports=0x0 len=0 curr_wr_port=0x0
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
mp_wr_bitmap: 0x0 mp_wr_ports=0x0 len=0 curr_wr_port=0x0
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
mp_wr_bitmap: 0x0 mp_wr_ports=0x0 len=0 curr_wr_port=0x0
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
mp_wr_bitmap: 0x0 mp_wr_ports=0x0 len=0 curr_wr_port=0x0
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
mp_wr_bitmap: 0x0 mp_wr_ports=0x0 len=0 curr_wr_port=0x0
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
mp_wr_bitmap: 0x0 mp_wr_ports=0x0 len=0 curr_wr_port=0x0
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
bss_index = 0, tx_pkts_queued = 0
-------- Dump info End---------
Driver version = SD8887-0.0.0.p0-C3X15C216-GPL-(FP68)
main_state = 4
ioctl_pending = 0
tx_pending = 0
rx_pending = 0
lock_count = 28
malloc_count = 35
mbufalloc_count = 0
hs_skip_count = 0
hs_force_count = 0
SDIO Func0 (0x0-0x9): 43 03 02 02 03 00 08 02 03 00
SDIO Func1 (0x10-0x17): 00 00 00 00 ff ff 00 00
SDIO Func1: (0x8) c3 (0x58) 00 (0x5c) 08 (0x5d) 00 (0x60) 07 (0x61) 0c (0x62) 00 (0x64) 10 (0x65) 00 (0x66) 00 (0x68) 00 (0x69) 00 (0x6a) 00
SDIO Func1 (0x90-0x9a): dc fe 1b 00 d6 00 3f 01 01 02 00
SDIO Func1 (0x90-0x9a): dc fe 27 00 e0 00 3f 01 01 02 00
Firmware Init Failed
woal_add_card failed
wlan_sdio: probe of mmc2:0001:1 failed with error -1
wlan: Driver loaded successfully

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I don't know what is actual reason behind this. After got this error when i reboot the system then mlan and sd8xxx driver was not loaded automatically.

Another issue is Wi-Fi driver was loaded successfully at bootup time, but driver for bluetooth was not loaded at bootup time. So after login prompt i have enable blutooth driver "hci_uart.ko". I got below logs.

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[    0.924603] Bluetooth: HCI device and connection manager initialized
[    0.929676] Bluetooth: HCI socket layer initialized
[   13.246031] ahci-imx 2200000.sata: fsl,transmit-level-mV not specified, using 00000024
[   13.252666] ahci-imx 2200000.sata: fsl,transmit-boost-mdB not specified, using 00000480
[   13.259413] ahci-imx 2200000.sata: fsl,transmit-atten-16ths not specified, using 00002000
[   13.266328] ahci-imx 2200000.sata: fsl,receive-eq-mdB not specified, using 05000000
[   13.275775] ahci-imx 2200000.sata: failed to reset phy: -110
[   13.280201] ahci-imx: probe of 2200000.sata failed with error -110
[   13.394040] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[   13.399316] ehci-pci: EHCI PCI platform driver
[   13.575875] ci_hdrc ci_hdrc.1: EHCI Host Controller
[   13.604480] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
[   13.743431] sdhci: Secure Digital Host Controller Interface driver
[   13.748375] sdhci: Copyright(c) Pierre Ossman
[   13.751478] sdhci-pltfm: SDHCI platform and OF driver helper
[   13.763380] sdhci-esdhc-imx 2198000.usdhc: could not get ultra high speed state, work on normal mode
[   13.772790] sdhci-esdhc-imx 2198000.usdhc: No vqmmc regulator found
[   13.825527] mmc2: SDHCI controller on 2198000.usdhc [2198000.usdhc] using ADMA
[   13.850610] sdhci-esdhc-imx 2198000.usdhc: no support for card's volts
[   13.860011] sdhci-esdhc-imx 219c000.usdhc: could not get ultra high speed state, work on normal mode
[   13.872351] sdhci-esdhc-imx 219c000.usdhc: No vqmmc regulator found
[   13.925540] mmc0: SDHCI controller on 219c000.usdhc [219c000.usdhc] using ADMA
[   13.951524] sdhci-esdhc-imx 2198000.usdhc: no support for card's volts
[   14.056194] sdhci-esdhc-imx 2198000.usdhc: no support for card's volts
[   14.153547] sdhci-esdhc-imx 2198000.usdhc: no support for card's volts
[ 109.590539] HCI UART driver ver 2.2-M2614100
[ 109.593978] HCI H4 protocol initialized
[ 109.596937] HCILL protocol initialized
[ 261.494511] Bluetooth: hci0 command 0x1003 tx timeout
[ 263.494498] Bluetooth: hci0 command 0x1001 tx timeout
[ 265.494479] Bluetooth: hci0 command 0x1009 tx timeout
[ 483.134461] Bluetooth: hci0 command 0x1003 tx timeout
[ 485.134462] Bluetooth: hci0 command 0x1001 tx timeout
[ 487.134530] Bluetooth: hci0 command 0x1009 tx timeout
[ 1837.487024] HCI UART driver ver 2.2-M2614100
[ 1837.495551] HCI H4 protocol initialized
[ 1837.498409] HCILL protocol initialized

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Our BLE Module was connected with UART interface, and that interface is "/dev/ttymxc1".

To enable chip as BLE, on our board one GPIO pin is there "BT_WACKUP_IN".

That i have enabled.

So i execute below command to attach the UART interface

hciattach /dev/ttymxc1 any 3000000 flow

Then i have execute command "hciconfig -a"

It shows me below logs

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hci0:   Type: Primary Bus: UART
   BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
   DOWN INIT RUNNING
   RX bytes:0 acl:0 sco:0 events:0 errors:0
   TX bytes:25 acl:0 sco:0 commands:5 errors:0
   Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
   Packet type: DM1 DH1 HV1
   Link policy:
   Link mode: SLAVE ACCEPT

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What is the issue behind this?

To up the hci0 interface, i have execute another command that is

"hciconfig -a hci0 up"

It shows me below logs.

--------------------------------------------------------------------

Can't init device hci0: Connection timed out (110)

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Please give me suggestion related to above issues.

Thank you.

Sanket

Re: Bluetooth integration with IMX6Q Processor

Bio_TICFSL — Wed, 07 Mar 2018 16:38:45 GMT

Hi Sanket,

Your system not recognize the driver, if that from marvel? you will have contact Marvel for this.

Regards

i.MX ProcessorsのトピックBluetooth integration with IMX6Q Processor

Bluetooth integration with IMX6Q Processor

Re: Bluetooth integration with IMX6Q Processor