FreeCalypso > hg > fc-magnetite

annotate doc/Modem-configs @ 407:f7f1f6f1a77d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
init.c module: a chance at being correct for the D-Sample target
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 18 Jan 2018 04:45:11 +0000
parents e80e43185ca1
children 117bf0fb1e78
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
375
e80e43185ca1 doc/Modem-configs update: we now have both Standard Modem and VPM
Mychaela Falconia <falcon@freecalypso.org>
parents: 312
diff changeset
4 If you would like to build our Magnetite firmware for the Standard Modem
e80e43185ca1 doc/Modem-configs update: we now have both Standard Modem and VPM
Mychaela Falconia <falcon@freecalypso.org>
parents: 312
diff changeset
5 functionality (voice, SMS, CSD, fax and GPRS services enabled, control via AT
e80e43185ca1 doc/Modem-configs update: we now have both Standard Modem and VPM
Mychaela Falconia <falcon@freecalypso.org>
parents: 312
diff changeset
6 commands, no UI, two UARTs are expected to be available for the AT command
e80e43185ca1 doc/Modem-configs update: we now have both Standard Modem and VPM
Mychaela Falconia <falcon@freecalypso.org>
parents: 312
diff changeset
7 interface and for the RVTMUX binary packet interface), you have 3 specific
e80e43185ca1 doc/Modem-configs update: we now have both Standard Modem and VPM
Mychaela Falconia <falcon@freecalypso.org>
parents: 312
diff changeset
8 configurations to choose from, differing in the level of deblobbing:
219
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 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
11 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
12 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
13 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
14 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
15 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
16
312
e60d7a32ae2a doc/Modem-configs: deblobbing status update
Mychaela Falconia <falcon@freecalypso.org>
parents: 252
diff changeset
17 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
18 (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
19 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
20 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
21 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
22 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
23 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
24 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
25
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 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
27 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
28 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
29 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
30 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
31 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
32 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
33 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
34 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
35 (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
36 blobs are GPF and Nucleus.
219
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37
252
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
38 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
39 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
40 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
41 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
42 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
43 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
44 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
45 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
46 weight.
1811c418461b doc/Modem-configs update: FCDEV3B is here, no specific plans for hybrid work
Mychaela Falconia <falcon@freecalypso.org>
parents: 238
diff changeset
47
375
e80e43185ca1 doc/Modem-configs update: we now have both Standard Modem and VPM
Mychaela Falconia <falcon@freecalypso.org>
parents: 312
diff changeset
48 Having fully deblobbed all of L1, we now have the ability to build our hybrid
e80e43185ca1 doc/Modem-configs update: we now have both Standard Modem and VPM
Mychaela Falconia <falcon@freecalypso.org>
parents: 312
diff changeset
49 firmware not only for the Standard Modem functionality with all data services
e80e43185ca1 doc/Modem-configs update: we now have both Standard Modem and VPM
Mychaela Falconia <falcon@freecalypso.org>
parents: 312
diff changeset
50 enabled as above, but also in a stripped-down "voice pseudo-modem"
e80e43185ca1 doc/Modem-configs update: we now have both Standard Modem and VPM
Mychaela Falconia <falcon@freecalypso.org>
parents: 312
diff changeset
51 configuration - see the Voice-pseudo-modem article.
219
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 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
54 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
55 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
56 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
57 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
58 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
59 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
60 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
61 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
62
b05dba024f95 doc/Handset-configs and doc/Modem-configs written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 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
64 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
65 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
66 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
67 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
68 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
69 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
70 experimental for the time being, not production.