FreeCalypso > hg > fc-magnetite

annotate doc/D-Sample @ 660:293c7db5f10f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
bmi3: fixed the mysterious "mute on first call" bug When UI-enabled fw boots on a previously blank (no /mmi/* files) FFS for the first time, the output_volume member of the persistent UI settings structure was left uninitialized, corresponding to the earpiece volume being set to mute, which is an invalid setting. Because of other quirks in the far-from-finished UI code, this volume setting takes effect only when the first call is answered, producing the odd behaviour seen at the user level. The current fix is to set the blank-FFS default for output_volume to volume level 4, which is the same -6 dB Iota volume as the ACI default.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 14 May 2020 02:50:41 +0000
parents 0d66718e5f33
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
460
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 Back In The Day TI had an official and well-supported platform for Calypso
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 software development; this platform was called D-Sample. It consisted of a
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 development board with the Calypso+Iota chipset on it (as well as a GSM RF
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 section based on their older Clara RF transceiver chip) plus an attached test
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 handset. Here are some pictures:
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 https://www.freecalypso.org/members/falcon/pictures/D-Sample/
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 I (Mychaela) have managed to obtain one of these historical D-Sample kits (the
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 one pictured) back in 2015. Given that this D-Sample board was the original
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 and most native hw target for the TCS211 firmware program, and given that our
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 FreeCalypso Magnetite firmware project is essentially a resurrection and
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 continuation of that TCS211 fw program, I naturally have a strong desire to
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 have our firmware run on this board in its full glory like it once ran in the
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 offices or cubicles of TI's own software engineers who worked on various parts
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 of TCS211 fw for the Calypso.
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 The current state of support is that we have everything other than the GSM radio
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 working. We are currently unable to bring up the radio tract on the D-Sample
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 board with our own Magnetite fw because of Clara RF: we only got a stripped
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 semi-src version of TCS211 in which the *.c files for L1 were censored out and
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 only *.obj blobs were supplied instead; the latter blobs target Rita RF and not
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 Clara. We have now successfully reconstructed the lost C sources for the RF-
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 independent and Rita-specific L1 modules, and we have l1_rf10.c for Clara RF
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 from the MV100 source fragments, but we are still missing the tpudrv10.c module
618
ed403a239ec6 doc/D-Sample: update for the failed attempt to reconstruct tpudrv10.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 460
diff changeset
26 which is also required for Clara RF. The 20020917 fw image that came flashed
ed403a239ec6 doc/D-Sample: update for the failed attempt to reconstruct tpudrv10.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 460
diff changeset
27 with this board does operate the RF hardware (tested and proven good with our
ed403a239ec6 doc/D-Sample: update for the failed attempt to reconstruct tpudrv10.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 460
diff changeset
28 CMU200 instrument), and we have tried extracting the elusive tpudrv10 bits from
ed403a239ec6 doc/D-Sample: update for the failed attempt to reconstruct tpudrv10.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 460
diff changeset
29 this original 20020917 fw. Our current tpudrv10.c driver is an attempt to
ed403a239ec6 doc/D-Sample: update for the failed attempt to reconstruct tpudrv10.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 460
diff changeset
30 replicate what the original firmware appears to do, i.e., a translation of the
ed403a239ec6 doc/D-Sample: update for the failed attempt to reconstruct tpudrv10.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 460
diff changeset
31 mystery logic from disassembly to C. But unfortunately it doesn't work, i.e.,
ed403a239ec6 doc/D-Sample: update for the failed attempt to reconstruct tpudrv10.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 460
diff changeset
32 when we flash our Magnetite fw into the board, we get non-working RF: in the Rx
ed403a239ec6 doc/D-Sample: update for the failed attempt to reconstruct tpudrv10.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 460
diff changeset
33 direction the Calypso DSP fails to receive the signal put out by the CMU200,
ed403a239ec6 doc/D-Sample: update for the failed attempt to reconstruct tpudrv10.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 460
diff changeset
34 and in the Tx direction the CMU200 detects no signal put out by the MS.
460
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 Despite having no working radio, everything else works: we can flash our own
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 Magnetite fw images into the board with our fc-loadtool (fc-host-tools-r8 or
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 later; earlier versions did not support the 28F640W30B flash chip correctly),
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 the SIM interface works, the audio subsystem driven by the Calypso DSP driven
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 by our reconstructed TCS211 L1 works (can make beeps through the loudspeaker in
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 the handset part of the kit), the handset keypad works, and when we run a
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 firmware image built with the UI layers enabled, the 176x220 pixel color UI
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 shows up on the big LCD. Because the SIM interface works, one can play with
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 this UI a fair bit despite having no working GSM radio: the UI behaves the same
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 way as any regular phone would in the absence of coverage, so one can step
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 through the menus, read SIM phonebook entries and stored messages.
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 Apparent hardware defect in our D-Sample LCD
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 ============================================
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 The one specific D-Sample board we have managed to score (might be the last one
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 left in the world, who knows) appears to be an early board: it is PCB rev 3,
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 but it has an early C05 version of the Calypso chip (F741979B), and it was made
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 some time in 2002. It came flashed with a firmware image built on 20020917,
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 and this original image it came with did not light up the LCD at all - it only
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 responded to AT commands. (Examination of that fw image suggests that it has
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 SMI instead of BMI+MFW, but I am not familiar with SMI at all - all I can tell
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 is that it behaves functionally as if it were an ACI build.) Thus the LCD part
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 of this D-Sample hardware only got exercised for the first time when I ran our
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 own Magnetite fw on it, and it exhibits some strange behaviour which I can only
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 attribute to a hardware problem.
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 The symptom is that the picture on the LCD sometimes appears garbled, and
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 whether or not this LCD garbling happens (and if it does happen, how severely)
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 appears to depend on the picture content. Furthermore, the dependency is not
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 only on the picture content, but seemingly also on some law of chance, as the
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 same picture can get garbled more or less severely at different times. Closer
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 examination of exactly how the picture is garbled reveals that the misbehaviour
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 appears to be some kind of double latching of write data inside the LCD module.
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 The R2D driver maintains a software framebuffer in the r2d_lcd_memory_words[]
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72 array, and the r2d_refresh() function transfers the picture in this software
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 FB to the hardware FB inside the LCD module by sequentially writing 176*220
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 16-bit words into a fixed ARM7 memory address in the nCS3 range, causing a
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 write cycle to be issued to the LCD module for each pixel. When a garbled
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 picture appears on the physical LCD, the picture maintained by the software in
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 the r2d_lcd_memory_words[] array is correct (not garbled) as revealed by
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
78 reading that array memory out via ETM memory read commands (see the tools in
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 the freecalypso-ui-dev repository), and the picture on the physical LCD is
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
80 garbled in such a way that it appears that at some point when the firmware sent
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 a single pixel to it, the LCD module erroneously registered a double write,
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
82 incrementing the internal FB RAM pointer by two pixels instead of one, with all
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
83 subsequent pixels shifted accordingly. The picture can be garbled more or less
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 severely depending on how many pixels in the picture trigger this apparent
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
85 double write effect.
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
86
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
87 The end result is that even though we have a real TI-made D-Sample hardware kit,
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
88 its usefulness to us for FreeCalypso UI development is rather limited because
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 of both the lack of tpudrv10.c code resulting in no working GSM radio and the
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90 apparent hardware problem with the LCD module in the handset part of the kit.
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 The Mother's plan is to design and build our own UI development board to take
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
93 the place of TI's D-Sample, combining the good version of the Calypso+Iota+Rita
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
94 chipset for which we have good fw support with a 176x220 pix color LCD of our
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 own - it is one of the industry standard sizes, so it should only be a matter
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
96 of getting a semi-custom one with the right interface (16-bit parallel) and the
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 right polarizer orientation (6 o'clock viewing direction). The proposed board
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
98 would be a derivative of our current FCDEV3B, keeping the core Calypso+RF block
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
99 (originally from Openmoko) completely unchanged, but adding the LCD, the keypad
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 buttons and other handset peripherals, resulting in a Handset Motherboard
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
101 Prototype - HSMBP.
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
102
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
103 Different Calypso silicon versions
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
104 ==================================
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
105
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
106 Because the D-Sample was a development board rather than a commercial end user
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
107 product, different D-Sample boards at different points in time had different
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
108 versions of the Calypso chip populated on them as the Calypso silicon itself
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
109 evolved. The board we got appears to be an early one, as it has Calypso chip
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
110 version F741979B on it (C05 rev B, DSP ROM version 3311), but I can only reason
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
111 that later D-Sample boards must have had Calypso C035 chips on them, either the
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
112 original Calypso C035 with DSP ROM version 3416 or the final silicon with DSP
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
113 ROM version 3606.
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
114
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
115 Because we only have one D-Sample board and we have no idea whether or not there
4d4f0bba9469 doc/D-Sample written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 are any other DS boards out there in the world (ours may well be the world's
621
0d66718e5f33 Calypso chip version mechanism documented
Mychaela Falconia <falcon@freecalypso.org>
parents: 618
diff changeset
117 last remaining unit), our dsample build target in FC Magnetite is set up for
0d66718e5f33 Calypso chip version mechanism documented
Mychaela Falconia <falcon@freecalypso.org>
parents: 618
diff changeset
118 Calypso chip version c05b by default, which is the version we got. If anyone
0d66718e5f33 Calypso chip version mechanism documented
Mychaela Falconia <falcon@freecalypso.org>
parents: 618
diff changeset
119 else in the world has another D-Sample board and it has a different Calypso
0d66718e5f33 Calypso chip version mechanism documented
Mychaela Falconia <falcon@freecalypso.org>
parents: 618
diff changeset
120 chip version on it, if you would like to run our FC Magnetite firmware on it,
0d66718e5f33 Calypso chip version mechanism documented
Mychaela Falconia <falcon@freecalypso.org>
parents: 618
diff changeset
121 you will need to follow the instructions in the Calypso-version-override
0d66718e5f33 Calypso chip version mechanism documented
Mychaela Falconia <falcon@freecalypso.org>
parents: 618
diff changeset
122 article.