FreeCalypso > hg > fc-magnetite

annotate doc/Modem-configs @ 339:2990f590d368

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
configs/l1reconst-chg created
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 14 Dec 2017 23:09:56 +0000
parents e60d7a32ae2a
children e80e43185ca1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
219
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 Modem configurations
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ====================
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 If you would like to build our Magnetite firmware in the AT-command-controlled
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 modem configuration (not the C-Sample UI demo on the Mot C139), you have 3
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 specific configurations to choose from, differing in the level of deblobbing:
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 classic This configuration replicates classic TCS211, just like
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 leo2moko from 2013. Almost all of the original binary blob
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 libraries are used; the only components that are recompiled
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 from source are those which we got in source form with our copy
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 of TCS211 from Sotovik. This config can only be built for the
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 fcdev3b and gtamodem targets, not for c139 or pirelli.
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14
312
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
15 l1reconst In this configuration the Layer1 component of the firmware
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
16 (which came as a blob in our copy of TCS211) is recompiled from
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
17 reconstructed source, and the same is done for the system
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
18 initialization code in main.lib. The entire chipsetsw division
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
19 of the firmware (now in src/cs) is thus recompiled from source,
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
20 either original or reconstructed, and the only components that
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
21 are used as blobs are the G23M PS, GPF and Nucleus. This
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
22 config can be built for all targets.
219
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 hybrid This configuration is a TCS2/TCS3 hybrid. Instead of using the
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 TCS211 version of the G23M protocol stack which we got only as
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 binary blobs, this config uses the G23M PS version from the
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 TCS3.2/LoCosto source, backported to work with L1 and the fw
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 foundation layers from TCS211. ACI also had to be replaced with
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 the TCS3 version, and a special hybrid version of the cdginc
312
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
30 headers had to be constructed. L1 and the init code are also
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
31 deblobbed as in l1reconst. Like l1reconst, this config can be
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
32 built for all targets, and it is currently the most deblobbed
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
33 (closest to full source) Magnetite config: the only remaining
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
34 blobs are GPF and Nucleus.
219
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35
252
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
36 All 3 of the above configurations have CSD, fax and GPRS enabled; this
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
37 functionality can only be exercised on those hardware targets on which both
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
38 Calypso UARTs are brought out, with the MODEM UART presenting a standard ASCII
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
39 AT command interface including data functions, while the IrDA UART carries the
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
40 RVTMUX interface for debug trace and other development functions. If you are
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
41 interacting with your Calypso target modem or pseudo-modem solely through
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
42 RVTMUX, without access to the ASCII AT command interface on the dedicated MODEM
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
43 UART, then the data functions of the firmware are inaccessible and act as dead
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
44 weight.
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
45
312
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
46 Having fully deblobbed all of L1, we are now in a position where we can build a
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
47 hybrid config with GPRS and/or FAX_AND_DATA excluded, but I (Mychaela) would
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
48 like to thoroughly exercise the hybrid config in its current everything-enabled
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
49 state before making further changes to it.
219
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 The deblobbing of L1 has been done in a very meticulous manner, ensuring that
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 each individual reconstructed C module compiles into a strict functional
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 equivalent of the original binary blob, sometimes even matching bit for bit -
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 thus no regressions are expected with the classic->l1reconst transition, and no
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 extensive testing is deemed necessary beyond the basic tests that have already
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 been done. However, the transition from l1reconst to hybrid involves wholesale
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 replacement of two major firmware components (G23M PS and ACI) and some
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 important associated support pieces with entirely different versions from a
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 different TI program, hence extensive testing and debugging will be needed.
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 So far the most-deblobbed hybrid config looks very promising: after fixing the
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 hideous bug resulting from the addition of A5/3 support in TCS3.2 (hardware
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 feature available on LoCosto but not on Calypso), voice calls work perfectly,
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 both with the legacy codecs and with AMR! (The same A5/3 bugfix has also been
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 applied to our Citrine fw, hence the latter now has working voice calls too.)
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 However, it is almost certain that there are a ton of minor bugs which need to
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 be shaken out, hence this firmware build config should be treated as
252
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
68 experimental for the time being, not production.