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bladeRF USB 3.0 Superspeed Software Defined Radio Source Code
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bladeRF-cli: board state insufficient after FPGA SPI flash load/erase #612

Closed bglod closed 6 years ago

bglod commented 6 years ago

Steps to reproduce:

  1. Load FPGA into SPI flash
$ bladeRF-cli -v verbose -L /path/to/hostedx40.rbf
Deferring device init until after FPGA load
<snip>
[DEBUG @ host/libraries/libbladeRF/src/backend/usb/usb.c:131] Reporting no FPGA present - BLADERF_FORCE_NO_FPGA_PRESENT is set.
<snip>
Writing FPGA to flash for autoloading...
<snip>
Done.
$
  1. Power cycle board and wait for LEDs to turn on (FPGA loaded from flash)
  2. Erase FPGA from SPI flash. After completion, an ERROR is posted:
$ bladeRF-cli -v verbose -L X
Deferring device init until after FPGA load
<snip>
Erasing stored FPGA to disable autoloading...
[VERBOSE @ host/libraries/libbladeRF/src/backend/usb/usb.c:106] Changing to USB alt setting 2
[INFO @ host/libraries/libbladeRF/src/backend/usb/usb.c:472] Erasing 55 blocks starting at block 4
[INFO @ host/libraries/libbladeRF/src/backend/usb/usb.c:477] Erased block 58
[INFO @ host/libraries/libbladeRF/src/backend/usb/usb.c:485] Done erasing 55 blocks
[VERBOSE @ host/libraries/libbladeRF/src/backend/usb/usb.c:106] Changing to USB alt setting 1
Done.
[ERROR @ host/libraries/libbladeRF/src/board/bladerf1/bladerf1.c:2153] Board state insufficient for operation (current "Firmware Loaded", requires "Initialized").
[ERROR @ host/libraries/libbladeRF/src/board/bladerf1/bladerf1.c:2153] Board state insufficient for operation (current "Firmware Loaded", requires "Initialized").
  1. If the CLI is started in interactive mode and we're issuing an erase command, we get a similar behavior:
$ bladeRF-cli -v verbose -L X -i
Deferring device init until after FPGA load
[DEBUG @ host/libraries/libbladeRF/src/backend/usb/usb.c:131] Reporting no FPGA present - BLADERF_FORCE_NO_FPGA_PRESENT is set.
[DEBUG @ host/libraries/libbladeRF/src/backend/usb/usb.c:131] Reporting no FPGA present - BLADERF_FORCE_NO_FPGA_PRESENT is set.
[DEBUG @ host/libraries/libbladeRF/src/backend/usb/usb.c:131] Reporting no FPGA present - BLADERF_FORCE_NO_FPGA_PRESENT is set.
[WARNING @ host/libraries/libbladeRF/src/board/bladerf1/bladerf1.c:1005] FPGA bitstream file not found.
[WARNING @ host/libraries/libbladeRF/src/board/bladerf1/bladerf1.c:1006] Skipping further initialization...
Erasing stored FPGA to disable autoloading...
[INFO @ host/libraries/libbladeRF/src/backend/usb/usb.c:472] Erasing 55 blocks starting at block 4
[INFO @ host/libraries/libbladeRF/src/backend/usb/usb.c:477] Erased block 58
[INFO @ host/libraries/libbladeRF/src/backend/usb/usb.c:485] Done erasing 55 blocks
Done.
bladeRF> version

  bladeRF-cli version:        1.6.1-git-deed07a3-dirty
  libbladeRF version:         2.0.1-git-deed07a3-dirty

[ERROR @ host/libraries/libbladeRF/src/board/bladerf1/bladerf1.c:1162] Board state insufficient for operation (current "Firmware Loaded", requires "FPGA Loaded").

  Error: Insufficient initialization for the requested operation

bladeRF> quit
[ERROR @ host/libraries/libbladeRF/src/board/bladerf1/bladerf1.c:2153] Board state insufficient for operation (current "Firmware Loaded", requires "Initialized").
[ERROR @ host/libraries/libbladeRF/src/board/bladerf1/bladerf1.c:2153] Board state insufficient for operation (current "Firmware Loaded", requires "Initialized").

The "Firmware Loaded, requires Initialized" case occurs in the CLI main.c during tear-down at cli_state_destroy(), which calls rxtx_shutdown() --> disarm_triggers() --> bladerf_trigger_init(), where the board state is checked and it errors out. The board was never initialized because of the flash operation. https://github.com/Nuand/bladeRF/blob/aaca552637b03bacc82caf175b22a7cfdb873519/host/utilities/bladeRF-cli/src/main.c#L550 https://github.com/Nuand/bladeRF/blob/aaca552637b03bacc82caf175b22a7cfdb873519/host/utilities/bladeRF-cli/src/common.c#L144-L150 https://github.com/Nuand/bladeRF/blob/aaca552637b03bacc82caf175b22a7cfdb873519/host/utilities/bladeRF-cli/src/cmd/rxtx.c#L470-L474

For the interactive "version" command case, we also see the "Firmware loaded, requires FPGA loaded" error .. but the FPGA was loaded via SPI flash. The debug output says BLADERF_FORCE_NO_FPGA_PRESENT is set, so the is_fpga_configured() function will always return false, causing the error.

https://github.com/Nuand/bladeRF/blob/aaca552637b03bacc82caf175b22a7cfdb873519/host/libraries/libbladeRF/src/backend/usb/usb.c#L116-L133

rtucker commented 6 years ago

I think I've reproduced this in the debugger, and yep, I concur...

(gdb) run
Starting program: /home/rtucker/dev/bladeRF/host/build/output/bladeRF-cli -L X
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff692e700 (LWP 18652)]
Deferring device init until after FPGA load
[Thread 0x7ffff692e700 (LWP 18652) exited]
[New Thread 0x7ffff692e700 (LWP 18653)]
Erasing stored FPGA to disable autoloading...
[INFO @ host/libraries/libbladeRF/src/backend/usb/usb.c:455] Erasing 55 blocks starting at block 4
[INFO @ host/libraries/libbladeRF/src/backend/usb/usb.c:460] Erased block 58
[INFO @ host/libraries/libbladeRF/src/backend/usb/usb.c:468] Done erasing 55 blocks
Done.

Thread 1 "bladeRF-cli" hit Breakpoint 1, bladerf2_trigger_init (
    dev=0x5555557a6220, ch=0, signal=BLADERF_TRIGGER_J71_4, 
    trigger=0x7fffffffdd30)
    at /home/rtucker/dev/bladeRF/host/libraries/libbladeRF/src/board/bladerf2/bladerf2.c:3343
3343        CHECK_BOARD_STATE(STATE_INITIALIZED);
(gdb) bt
#0  bladerf2_trigger_init (dev=0x5555557a6220, ch=0, 
    signal=BLADERF_TRIGGER_J71_4, trigger=0x7fffffffdd30)
    at /home/rtucker/dev/bladeRF/host/libraries/libbladeRF/src/board/bladerf2/bladerf2.c:3343
#1  0x00007ffff7b720e5 in bladerf_trigger_init (dev=0x5555557a6220, ch=0, 
    signal=BLADERF_TRIGGER_J71_4, trigger=0x7fffffffdd30)
    at /home/rtucker/dev/bladeRF/host/libraries/libbladeRF/src/bladerf.c:830
#2  0x00005555555724d0 in disarm_triggers (s=0x555555792280, dir=BLADERF_RX)
    at /home/rtucker/dev/bladeRF/host/utilities/bladeRF-cli/src/cmd/rxtx.c:84
#3  0x00005555555731d5 in rxtx_shutdown (s=0x555555792280, rxtx=0x5555557922e0)
    at /home/rtucker/dev/bladeRF/host/utilities/bladeRF-cli/src/cmd/rxtx.c:473
#4  0x000055555555edd1 in cli_state_destroy (s=0x555555792280)
    at /home/rtucker/dev/bladeRF/host/utilities/bladeRF-cli/src/common.c:150
#5  0x000055555555eab7 in main (argc=3, argv=0x7fffffffdf08)
    at /home/rtucker/dev/bladeRF/host/utilities/bladeRF-cli/src/main.c:550
(gdb)
rtucker commented 6 years ago

I am able to reproduce by:

  1. disconnect/reconnect USB
  2. do bladeRF-cli -e version (w/ host-based FPGA autoloading enabled)
  3. do bladeRF-cli -L X