fc-magnetite: doc/Handset-goal annotate

annotate doc/Handset-goal @ 639:026c98f757a6

tpudrv12.h & targets/gtm900.h: our current support is for MGC2GSMT version only As it turns out, there exist two different Huawei-made hw platforms both bearing the marketing name GTM900-B: one is MG01GSMT, the other is MGC2GSMT. The two are NOT fw-compatible: aside from flash chip differences which should be handled by autodetection, the two hw platforms are already known to have different RFFEs with different control signals, and there may be other differences not yet known. Our current gtm900 build target is for MGC2GSMT only; we do not yet have a specimen of MG01GSMT on hand, hence no support for that version will be possible until and unless someone provides one.

author	Mychaela Falconia <falcon@freecalypso.org>
date	Thu, 30 Jan 2020 18:19:01 +0000
parents	712c5cc0b2a9
children

rev	line source
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	1 FreeCalypso end user libre phone goals
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	2 ======================================
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	3
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	4 The Mother's primary goal in FreeCalypso is to create (design and build) our
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	5 own FreeCalypso libre phone handset (a Libre Dumbphone) that can replace the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	6 proprietary Pirelli DP-L10, retaining the following essential qualities of the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	7 latter:
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	8
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	9 * a "dumbphone" in the most classic "candybar" form factor with traditional
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	10 dial buttons, NOT a smartphone;
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	11 * a color LCD of a decent size (Pirelli's is 128x128 pixels, ours will be
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	12 176x220 pixels);
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	13 * a loudspeaker that works for both hands-free calls and polyphonic ringtone
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	14 melodies;
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	15 * a USB port that combines charging with a built-in serial interface for
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	16 computer interfacing.
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	17
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	18 A secondary goal is to put together a firmware version that can be flashed into
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	19 a surplus Motorola C139 or C140 phone (obscenely cheap hardware) and turn those
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	20 originally-proprietary phones into a sort of Libre Dumbphone Lite - functionally
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	21 inferior to our own FreeCalypso Libre Dumbphone because Mot C139/140 hardware
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	22 is significantly inferior to what I seek to build (no loudspeaker, no USB, much
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	23 smaller LCD), but may be attractive to those cheap souls who are unwilling to
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	24 pay for higher-quality hardware. (Doing a similar feat with Pirelli DP-L10
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	25 hardware - turning it into a Libre Dumbphone by way of aftermarket firmware -
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	26 is not practically feasible: the effort to reverse-eng Pirelli's undocumented
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	27 hardware to the extent necessary for such a feat would cost at least as much
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	28 time and money as designing and building our own Libre Dumbphone hardware,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	29 hence the latter is clearly preferable.)
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	30
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	31 The primary goal of entirely new FreeCalypso Libre Phone hardware and the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	32 secondary goal of FC on the C139 are not mutually exclusive: because we are a
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	33 FLOSS project rather than proprietary sw, we do not artificially restrict what
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	34 hardware our fw can run on and what functionality it can provide: while the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	35 primary target for our Libre Dumbphone firmware will always be our own hw,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	36 whatever functionality can work on the more limited Mot C139 hw will work there,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	37 subject to the limitations of the crippled hw platform.
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	38
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	39 However, in terms of timeline sequentiality, the critical point is that I,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	40 Mychaela Falconia, the Mother of FreeCalypso, am not willing to do any more
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	41 work on the UI firmware (for any target) ahead of designing and building the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	42 first prototype of the just-outlined FC Libre Dumbphone hardware: when it comes
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	43 to the work that I am doing, it has to be hardware first, then UI firmware.
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	44
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	45 But the FreeCalypso codebase is free for everyone, it is free software which
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	46 anyone in the world is free to fork in whatever ways they like, hence for those
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	47 who feel (contrary to my own personal stance) that aftermarket Libre Dumbphone
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	48 firmware for pre-existing hw platforms like Mot C139 is more important than new
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	49 FreeCalypso Libre Dumbphone hardware, the correct solution for those people is
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	50 to get over their fear of programming, roll up their sleeves and do some
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	51 firmware coding of their own.
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	52
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	53 What we got from TI in terms of firmware
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	54 ========================================
219 b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	55
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	56 Phone handset firmware, i.e., fw that makes a phone device work as an untethered
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	57 phone and not just a serial-cable-controlled pseudo-modem, requires a few
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	58 additional layers of functionality beyond AT-command-controlled modem fw:
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	59
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	60 * The hardware-specific LCD driver, called R2D in TI's TCS211 program;
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	61 * The actual phone UI implementation, which the cellular industry calls by the
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	62 sexist term "MMI" - TI's implementation consists of two components called BMI
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	63 and MFW;
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	64 * Battery management (monitoring and charging);
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	65 * Fairly complex on/off logic to handle all possible combinations of turn-on,
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	66 turn-off, charging while "on", charging while "off", charging completed or
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	67 failed but charging power source not unplugged yet.
b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	68
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	69 The bulk of the UI code resides in the BMI and MFW layers, which sit on top of
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	70 ACI (Application Control Interface), which is the topmost layer of the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	71 underlying GSM modem firmware stack. We got two different versions of this
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	72 MFW+BMI code from TI:
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	73
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	74 * The version under src/aci2, used together with the original TCS211 versions
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	75 of G23M PS and ACI components in the legacy 2092 config, has a very unclear
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	76 origin: it came from the internal SVN of an obscure company that made
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	77 AT-command-controlled Calypso modems (not complete phones with Calypso UI),
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	78 those people did not use this code themselves at all (their environment was
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	79 not even set up to be able to compile it), and it is totally unclear how they
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	80 came to have that code which they did not use. It might correspond to the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	81 rest of TCS211 fw which we got from the same source, or it might not.
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	82
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	83 * The version under src/ui3, used in our hybrid configs going forward, has a
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	84 much clearer origin: we took it from TCS3.2_N5.24_M18_V1.11_M23BTH_PSL1_src
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	85 reference firmware for TI's later LoCosto chipset, which was published free
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	86 to the world by Peek Inc. as that company was closing shop.
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	87
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	88 We are now able to build UI-enabled firmware configs using both versions of TI's
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	89 MFW+BMI code, and there are no significant differences in the quality of the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	90 phone UI implementation: in both cases it is only a proof of concept, and is
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	91 absolutely not ready for driving a real end user phone: the UI code contains
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	92 crashing and other killer bugs, the battery management driver officially
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	93 endorsed by TI for TCS211 and later programs (LCC for "low cost" unregulated
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	94 chargers) is not appropriate for phones that use simple charging circuits and
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	95 regulated +5 VDC charging power sources (USB or Motorola's C1xx charging
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	96 adapters), and TI's older PWR battery management driver (TI totally removed it
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	97 from TCS211, but we pulled it from the older MV100 source fragments) is
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	98 bitrotten and just generally broken.
374 3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	99
3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	100 In FreeCalypso we have developed our own battery charging and discharge
3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	101 monitoring driver (FCHG) that works on Mot C1xx and Pirelli DP-L10 phones in
376 3f1a587b3a84 doc/Voice-pseudo-modem written Mychaela Falconia <falcon@freecalypso.org> parents: 374 diff changeset	102 the "voice pseudo-modem" configuration (see the Voice-pseudo-modem article),
3f1a587b3a84 doc/Voice-pseudo-modem written Mychaela Falconia <falcon@freecalypso.org> parents: 374 diff changeset	103 but we still have the problem of the UI, namely, the lack of one that is
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	104 practically usable. Because TI were in the business of making and selling
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	105 chipsets rather than complete phones, proper phone UI development was something
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	106 they left to their customers, and they provided only a very rough proof of
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	107 concept implementation.
374 3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	108
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	109 What we have currently
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	110 ======================
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	111
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	112 If you wish to play with our current work in progress based on TI's PoC UI code,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	113 you have 3 configurations (in the ./configure.sh sense) to choose from:
374 3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	114
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	115 2092 This is our first UI-enabled configuration; it got its name
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	116 because it is a mostly unchanged replica of TI's pdt_2092
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	117 configuration in the original TCS211 program. This config uses
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	118 the original TCS211 versions of G23M PS (blobs), ACI (source)
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	119 and MFW+BMI (source) components. Data services (FAX_AND_DATA
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	120 and GPRS) are enabled and cannot be disabled because of G23M PS
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	121 blobs.
374 3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	122
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	123 hybrid-ui This config is the TCS2/TCS3 hybrid counterpart to the above,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	124 using the new full source versions of G23M PS, ACI and MFW+BMI
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	125 from the TCS3.2/LoCosto source. FAX_AND_DATA and GPRS are
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	126 still enabled.
374 3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	127
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	128 hybrid-ui-vo Same as hybrid-ui, but with FAX_AND_DATA and GPRS disabled,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	129 resulting in a lighter build.
374 3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	130
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	131 All 3 of the above configs can be usefully built for 3 hardware targets:
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	132 dsample, fcdev3b and c139. The resulting firmware will work as follows:
374 3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	133
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	134 * If you have a real TI-made D-Sample board with the attached test handset (the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	135 platform that TI's own software engineers used when working on this UI code,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	136 at least before LoCosto), TI's 176x220 pixel color UI will be displayed on
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	137 the LCD in the handset part of the kit, just the way TI meant it. However,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	138 because we are missing a piece of code for Clara RF, GSM radio won't work,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	139 and the UI can only be exercised as it would work in the absence of coverage:
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	140 one can step through the menus and read SIM phonebook entries and saved
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	141 messages, but no calls. See the D-Sample article for the details.
374 3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	142
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	143 * You can run a UI-enabled firmware build on our FCDEV3B modem board that has
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	144 no physical LCD or keypad hardware, and display TI's 176x220 pixel color UI
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	145 on a connected external host, sending simulated keypresses from the same -
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	146 look in the freecalypso-ui-dev repository for the necessary tools.
374 3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	147
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	148 * When a UI-enabled firmware config is built for the C139 target, the UI config
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	149 (Bourne shell variable UI_CONFIG in our configuration and Makefile generation
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	150 system) is switched from TI's D-Sample UI (176x220 pix color,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	151 UI_CONFIG=bigcolor) to their older C-Sample UI: 84x48 pix black & white,
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	152 UI_CONFIG=84x48. This 84x48 pix B&W C-Sample UI is then displayed on the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	153 96x64 pixel physical LCD on the C139 phone.
374 3f2dce15278c doc: new Handset-goal write-up replaces old Handset-configs Mychaela Falconia <falcon@freecalypso.org> parents: 313 diff changeset	154
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	155 If you are interested in the Mot C139 hardware target and you are interested in
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	156 turning our current state of affairs into something that would allow you to use
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	157 your C139 as a practically usable libre phone with FreeCalypso, the Mother
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	158 strongly recommends that you use the hybrid-ui-vo configuration as your starting
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	159 point; working on the old src/aci2 UI code that is slated for retirement because
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	160 it is coupled to a G23M PS version that exists only as binary blobs would be a
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	161 total waste. If you try to use our current hybrid-ui-vo firmware on the C139
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	162 as a practical phone, the following problems will be the ones that hit you most
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	163 immediately, and therefore would need to be fixed first:
219 b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	164
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	165 * The FCHG driver included in the fw build does monitor the battery state of
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	166 charge as it discharges, and you can query it with the standard AT+CBC command
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	167 using the AT-over-RVTMUX channel on the headset jack serial port, but it is
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	168 not connected to the UI, hence the battery icon on the screen shows no useful
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	169 info. Thus with an end user hat on, you would have no way of knowing if your
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	170 battery is full or almost empty and about to die any second or anywhere in
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	171 between.
219 b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	172
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	173 * The firmware similarly supports battery charging, but once again there is
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	174 absolutely no indication in the UI as to the state of the charging process as
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	175 in progress, completion or errors. Instead you can only observe this
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	176 charging process by watching the debug trace output emitted on the headset
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	177 jack serial port.
219 b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	178
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	179 * Every standard commercial end user phone implements a special mode of
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	180 operation that is activated if the user plugs in the charging power source
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	181 while the phone is off: the phone firmware boots just enough to manage the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	182 battery charging process (the LCD shows nothing but this charging process),
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	183 but does not boot all the way to "full on" operation (SIM bring-up and
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	184 network search) until and unless some designated button is pressed to request
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	185 such full boot. The proof-of-concept code we got from TI does not implement
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	186 this special "charging boot" mode; instead if you connect the charging power
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	187 source to a fully-off phone, the result will be a full boot just as if you
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	188 pressed the red power-on button. This lack of the expected "charging boot"
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	189 mode is bad, as one really needs a "charge while off" mode in order to
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	190 properly recover from a fully discharged battery.
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	191
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	192 * Every standard commercial end user phone implements some timer logic for the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	193 power-on button, such that if the phone is fully off, the power button needs
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	194 to be pressed not just momentarily, but held down for some time in order to
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	195 make the phone turn on and boot. This logic provides necessary protection
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	196 from accidental turn-ons: if you are in some place where your phone needs to
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	197 be off and you have turned it off, you don't want it booting back up on its
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	198 own because the button got pressed momentarily from the phone being in your
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	199 pocket or purse. This logic is currently missing.
219 b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	200
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	201 * The LCD on Mot C139 phones is already small, only 96x64 pixels, but with the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	202 current firmware using the UI which TI originally created for their C-Sample
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	203 and earlier development boards, the usable area is reduced even further to
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	204 only 84x48 pixels. Likewise the physical LCD is color, but the UI is only
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	205 black&white because the UI code "thinks" it's running on a C-Sample board
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	206 which only had a black&white LCD. Massively reworking the UI code to make
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	207 use of the full 96x64 pixel LCD real estate, along with some colors, ought to
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	208 be essential before this UI can really become fit for end user operation.
219 b05dba024f95 doc/Handset-configs and doc/Modem-configs written Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	209
463 712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	210 Some of these just-listed killer bugs are specific to the C139 target, while
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	211 others will still be there when we have our own HSMBP with a 176x220 pix color
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	212 LCD like on the D-Sample. Those bugs which are not C139-specific will be fixed
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	213 in the process of making our own FreeCalypso Libre Dumbphone based on our own
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	214 hardware, and by virtue of the common code the fixes will benefit the C139
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	215 target as well. In the case of C139-specific bugs, i.e., those specific to the
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	216 tiny screen size or to the weird (not TI-canonical) way in which the power
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	217 button is wired on C1xx phones, it is not currently known whether or not I
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	218 (Mychaela aka The Mother) will ever be willing to invest significant work into
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	219 these C139-specific issues. Thus the message is loud and clear: those who
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	220 desire FreeCalypso as aftermarket libre phone fw for Mot C139 or other non-FC
712c5cc0b2a9 doc/Handset-goal: update for the current situation Mychaela Falconia <falcon@freecalypso.org> parents: 376 diff changeset	221 hardware need to roll up their sleeves and start learning the code.

FreeCalypso > hg > fc-magnetite

annotate doc/Handset-goal @ 639:026c98f757a6