FreeCalypso > hg > fc-magnetite

comparison doc/Modem-configs @ 312:e60d7a32ae2a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
doc/Modem-configs: deblobbing status update
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 03 Nov 2017 21:07:17 +0000
parents 1811c418461b
children e80e43185ca1
comparison
equal deleted inserted replaced
311:86a89a21078f 312:e60d7a32ae2a
10 libraries are used; the only components that are recompiled 10 libraries are used; the only components that are recompiled
11 from source are those which we got in source form with our copy 11 from source are those which we got in source form with our copy
12 of TCS211 from Sotovik. This config can only be built for the 12 of TCS211 from Sotovik. This config can only be built for the
13 fcdev3b and gtamodem targets, not for c139 or pirelli. 13 fcdev3b and gtamodem targets, not for c139 or pirelli.
14 14
15 l1reconst In this configuration most of L1 (GSM Layer 1) is recompiled 15 l1reconst In this configuration the Layer1 component of the firmware
16 from reconstructed source, although this deblobbing of L1 is 16 (which came as a blob in our copy of TCS211) is recompiled from
17 not 100% complete yet: for the GPRS-specific L1 modules the 17 reconstructed source, and the same is done for the system
18 original binary object blobs are still used. Some housekeeping 18 initialization code in main.lib. The entire chipsetsw division
19 pieces are also recompiled from source that had to be 19 of the firmware (now in src/cs) is thus recompiled from source,
20 reconstructed. This config can be built for all targets. 20 either original or reconstructed, and the only components that
21 are used as blobs are the G23M PS, GPF and Nucleus. This
22 config can be built for all targets.
21 23
22 hybrid This configuration is a TCS2/TCS3 hybrid. Instead of using the 24 hybrid This configuration is a TCS2/TCS3 hybrid. Instead of using the
23 TCS211 version of the G23M protocol stack which we got only as 25 TCS211 version of the G23M protocol stack which we got only as
24 binary blobs, this config uses the G23M PS version from the 26 binary blobs, this config uses the G23M PS version from the
25 TCS3.2/LoCosto source, backported to work with L1 and the fw 27 TCS3.2/LoCosto source, backported to work with L1 and the fw
26 foundation layers from TCS211. ACI also had to be replaced with 28 foundation layers from TCS211. ACI also had to be replaced with
27 the TCS3 version, and a special hybrid version of the cdginc 29 the TCS3 version, and a special hybrid version of the cdginc
28 headers had to be constructed. L1 is also deblobbed to the 30 headers had to be constructed. L1 and the init code are also
29 same extent as in l1reconst. Like l1reconst, this config can 31 deblobbed as in l1reconst. Like l1reconst, this config can be
30 be built for all targets, and it is currently the most deblobbed 32 built for all targets, and it is currently the most deblobbed
31 (closest to full source) Magnetite config. 33 (closest to full source) Magnetite config: the only remaining
34 blobs are GPF and Nucleus.
32 35
33 All 3 of the above configurations have CSD, fax and GPRS enabled; this 36 All 3 of the above configurations have CSD, fax and GPRS enabled; this
34 functionality can only be exercised on those hardware targets on which both 37 functionality can only be exercised on those hardware targets on which both
35 Calypso UARTs are brought out, with the MODEM UART presenting a standard ASCII 38 Calypso UARTs are brought out, with the MODEM UART presenting a standard ASCII
36 AT command interface including data functions, while the IrDA UART carries the 39 AT command interface including data functions, while the IrDA UART carries the
38 interacting with your Calypso target modem or pseudo-modem solely through 41 interacting with your Calypso target modem or pseudo-modem solely through
39 RVTMUX, without access to the ASCII AT command interface on the dedicated MODEM 42 RVTMUX, without access to the ASCII AT command interface on the dedicated MODEM
40 UART, then the data functions of the firmware are inaccessible and act as dead 43 UART, then the data functions of the firmware are inaccessible and act as dead
41 weight. 44 weight.
42 45
43 Having deblobbed all of L1 except GPRS-specific modules, we are now in a 46 Having fully deblobbed all of L1, we are now in a position where we can build a
44 position where we can build a hybrid config with GPRS excluded, optionally 47 hybrid config with GPRS and/or FAX_AND_DATA excluded, but I (Mychaela) would
45 including or excluding FAX_AND_DATA, but I (Mychaela) would like to thoroughly 48 like to thoroughly exercise the hybrid config in its current everything-enabled
46 exercise the hybrid config in its current everything-enabled state before making 49 state before making further changes to it.
47 further changes to it.
48 50
49 The deblobbing of L1 has been done in a very meticulous manner, ensuring that 51 The deblobbing of L1 has been done in a very meticulous manner, ensuring that
50 each individual reconstructed C module compiles into a strict functional 52 each individual reconstructed C module compiles into a strict functional
51 equivalent of the original binary blob, sometimes even matching bit for bit - 53 equivalent of the original binary blob, sometimes even matching bit for bit -
52 thus no regressions are expected with the classic->l1reconst transition, and no 54 thus no regressions are expected with the classic->l1reconst transition, and no