FreeCalypso > hg > freecalypso-tools
view target-utils/libbase/osmodelay.S @ 1014:961efadd530a default tip
fc-shell TCH DL handler: add support for CSD modes
TCH DL capture mechanism in FC Tourmaline firmware has been extended
to support CSD modes in addition to speech - add the necessary support
on the host tools side.
It needs to be noted that this mechanism in its present state does NOT
provide the debug utility value that was sought: as we learned only
after the code was implemented, TI's DSP has a misfeature in that the
buffer we are reading (a_dd_0[]) is zeroed out when the IDS block
is enabled, i.e., we are reading all zeros and not the real DL bits
we were after. But since the code has already been written, we are
keeping it - perhaps we can do some tests with IDS disabled.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Tue, 26 Nov 2024 06:27:43 +0000 |
| parents | e7502631a0f9 |
| children |
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/* * This assembly module provides a replica of OsmocomBB's bogo-millisecond * delay_ms() function. It is literally a copy of what OsmocomBB's delay_ms() * compiles to with their gcc version and their optimization settings, as seen * by doing arm-elf-objdump on their lib/delay.o. * * This hack is intended for those cases where we have to copy OsmocomBB's * black magic voodoo operations with no ability to understand what is actually * needed, such as SPCA552E initialization on the Pirelli DP-L10. */ .text .code 32 .globl osmo_delay_ms osmo_delay_ms: mov r3, #0 sub sp, sp, #4 str r3, [sp] ldr r3, =1300 mul r3, r0, r3 b 2f 1: ldr r2, [sp] ldr r2, [sp] add r2, r2, #1 str r2, [sp] 2: ldr r2, [sp] cmp r2, r3 bcc 1b add sp, sp, #4 bx lr