• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 39 subscribers
  • Views 1511 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

WL12xx SDIO issues when Bluetooth Enabled.

Dheeraj CVR
Prodigy 60 points
Other Parts Discussed in Thread: WL1271

Hello,

We are working on a custom board with OMAP3630 processor and WL1271 (Wifi and Bluetooth) based on Zoom2.

Kernel Used: http://omapzoom.org/?p=kernel/omap.git;a=summary (p-android-omap3-3.0)

OS Deployed: Android 4.1 Jellybean

We have been using an older kernel release 2.6.35 and we have been working on porting the 3.0.8 kernel from Omapzoom for the last few days. We have been working on porting the latest drivers and we have a strange issue with WIFI.

We have used the NLCP WIFI driver wl12xx from http://omapzoom.org/?p=platform/hardware/ti/wlan.git;a=summary (ol_R5.SP3.01)

We have got the WIFI working by using the ICS Porting guide: http://processors.wiki.ti.com/index.php/TI-Android-ICS-PortingGuide#Driver_Configuration.

The WIFI is fully functional and we are able to scan as well as connect to networks.

Voltage Regulator for WIFI Module:

<6>print_constraints: vwl1271: 1800 mV

MMC2 Device Probe:

<4>mmc2: card claims to support voltages below the defined range. These will be ignored.
<4>mmc2: queuing unknown CIS tuple 0x91 (3 bytes)
<6>mmc2: new SDIO card at address 0001

Board Code:

static struct regulator_consumer_supply latona_vmmc3_supply = {
    .supply        = "vmmc",
    .dev_name    = "omap_hsmmc.2",
};

static struct regulator_init_data latona_vmmc3 = {
    .constraints = {
        .valid_ops_mask    = REGULATOR_CHANGE_STATUS,
    },
    .num_consumer_supplies    = 1,
    .consumer_supplies = &latona_vmmc3_supply,
};

static struct fixed_voltage_config latona_vwlan = {
    .supply_name        = "vwl1271",
    .microvolts        = 1800000, /* 1.8V */
    .gpio            = LATONA_WIFI_PMENA_GPIO,
    .startup_delay        = 70000, /* 70msec */
    .enable_high        = 1,
    .enabled_at_boot    = 0,
    .init_data        = &latona_vmmc3,
};

static struct platform_device omap_vwlan_device = {
    .name        = "reg-fixed-voltage",
    .id        = 1,
    .dev = {
        .platform_data    = &latona_vwlan,
    },
};

platform_device_register(&omap_vwlan_device);

We have enabled the TI Shared Transport Driver along with the BTWilink driver as mentioned in the porting guide. We have made all the required changes to the userspace and we were able to get the Bluetooth working perfectly with scanning and file transfer working fine, however while the bluetooth configuration is enabled in the kernel, the WIFI doesn't work anymore.

Bluetooth Board Code:

static int plat_kim_suspend(struct platform_device *pdev, pm_message_t state)
{
    /* TODO: wait for HCI-LL sleep */
    return 0;
}
static int plat_kim_resume(struct platform_device *pdev)
{
    return 0;
}

/* wl127x BT, FM, GPS connectivity chip */
struct ti_st_plat_data wilink_pdata = {
    .nshutdown_gpio = 63,
    .dev_name = WILINK_UART_DEV_NAME,
    .flow_cntrl = 1,
    .baud_rate = 3000000,
    .suspend = plat_kim_suspend,
    .resume = plat_kim_resume,
};
static struct platform_device wl127x_device = {
    .name           = "kim",
    .id             = -1,
    .dev.platform_data = &wilink_pdata,
};
static struct platform_device btwilink_device = {
    .name = "btwilink",
    .id = -1,
};

static struct platform_device *latona_devices[] __initdata = {
    &wl127x_device,
    &btwilink_device,
};

We are using the bts firmware from omapzoom git.

The error with the WL12xx is:
<3>wl1271_sdio mmc2:0001:2: sdio read failed (-84)

For some reason, the bluetooth causes the  wl12xx_sdio_raw_read to fail. We have disabled the CONFIG_TI_ST and everything works as expected.

Crash Log:

<4>------------[ cut here ]------------
<4>WARNING: at ../../../../../../hardware/ti/wlan/mac80211/compat_wl12xx/drivers/net/wireless/wl12xx/sdio.c:95 wl12xx_sdio_raw_read+0x9c/0xc0 [wl12xx_sdio]()
<d>Modules linked in: wl12xx_sdio wl12xx mac80211 cfg80211 compat
[<c004841c>] (unwind_backtrace+0x0/0xe0) from [<c0073b30>] (warn_slowpath_common+0x4c/0x64)
[<c0073b30>] (warn_slowpath_common+0x4c/0x64) from [<c0073b60>] (warn_slowpath_null+0x18/0x1c)
[<c0073b60>] (warn_slowpath_null+0x18/0x1c) from [<bf0aa24c>] (wl12xx_sdio_raw_read+0x9c/0xc0 [wl12xx_sdio])
[<bf0aa24c>] (wl12xx_sdio_raw_read+0x9c/0xc0 [wl12xx_sdio]) from [<bf07f1f4>] (wl1271_cmd_send+0x3bc/0x4f0 [wl12xx])
[<bf07f1f4>] (wl1271_cmd_send+0x3bc/0x4f0 [wl12xx]) from [<bf07ff60>] (wl1271_cmd_test+0x50/0x74 [wl12xx])
[<bf07ff60>] (wl1271_cmd_test+0x50/0x74 [wl12xx]) from [<bf08028c>] (wl1271_cmd_radio_parms+0xec/0x124 [wl12xx])
[<bf08028c>] (wl1271_cmd_radio_parms+0xec/0x124 [wl12xx]) from [<bf08b110>] (wl1271_hw_init+0x44/0x198 [wl12xx])
[<bf08b110>] (wl1271_hw_init+0x44/0x198 [wl12xx]) from [<bf07bdc0>] (wl1271_op_add_interface+0x31c/0x5e0 [wl12xx])
[<bf07bdc0>] (wl1271_op_add_interface+0x31c/0x5e0 [wl12xx]) from [<bf040c80>] (ieee80211_stop+0x2fc/0x6d8 [mac80211])
[<bf040c80>] (ieee80211_stop+0x2fc/0x6d8 [mac80211]) from [<c039d784>] (__dev_open+0x9c/0xf4)
[<c039d784>] (__dev_open+0x9c/0xf4) from [<c039d9a4>] (__dev_change_flags+0x8c/0x110)
[<c039d9a4>] (__dev_change_flags+0x8c/0x110) from [<c039da94>] (dev_change_flags+0x10/0x44)
[<c039da94>] (dev_change_flags+0x10/0x44) from [<c04027a0>] (devinet_ioctl+0x370/0x75c)
[<c04027a0>] (devinet_ioctl+0x370/0x75c) from [<c038b6c0>] (sock_ioctl+0x1ec/0x240)
[<c038b6c0>] (sock_ioctl+0x1ec/0x240) from [<c00ee6dc>] (do_vfs_ioctl+0x4f8/0x56c)
[<c00ee6dc>] (do_vfs_ioctl+0x4f8/0x56c) from [<c00ee784>] (sys_ioctl+0x34/0x54)
[<c00ee784>] (sys_ioctl+0x34/0x54) from [<c0043480>] (ret_fast_syscall+0x0/0x30)
<4>---[ end trace 65f8ea860415c051 ]---
<3>wl1271_sdio mmc2:0001:2: sdio read failed (-84)

Full Log:

EDIT: Included as an attachment.

0131.dmesg_wl12xx.txt
Fullscreen
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Uncompressing Linux... done, booting the kernel.
<6>Initializing cgroup subsys cpu
<5>Linux version 3.0.8-Project-Kernel-3.x+ (dhiru1602@teamhacksung) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 PREEMPT Wed Jan 2 18:51:27 IST 2013
CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine: LATONA
<4>Ignoring unrecognised tag 0x00000000
<6>Reserving 16777216 bytes SDRAM for VRAM
Memory policy: ECC disabled, Data cache writeback
<4>L2 CACHE is not enabled in bootloader. Enabled L2 CACHE.
<6>OMAP3630 ES1.2 (l2cache iva sgx neon isp 192mhz_clk )
<6>SRAM: Mapped pa 0x40208000 to va 0xfe408000 size: 0x7000
<7>On node 0 totalpages: 116992
<7>free_area_init_node: node 0, pgdat c06d4c00, node_mem_map c0846000
<7> Normal zone: 1024 pages used for memmap
<7> Normal zone: 0 pages reserved
<7> Normal zone: 115968 pages, LIFO batch:31
<6>Clocking rate (Crystal/Core/MPU): 26.0/400/800 MHz
<7>pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX


Please help me with debugging the issue and finding what's wrong.

Thank you!

  • 0
    Prodigy 60 points

    Just a follow up to this issue. I have decided to do some more tests.

    I have disabled the CONFIG_TI_ST and the WIFI worked fine. I did the following command from the console:

    cat /dev/ttyO1

    When I checked the dmesg, I was able to get the same SDIO errors and WIFI stopped working until a reboot.

    I could confirm that the issue is not with the Shared Transport Driver or the userspace UIM. There is something wrong in the board code that might cause this issue.

    Please help me with it. I am totally clueless since everything worked fine on 2.6.35.

    Regards,

    Dheeraj.