e3-hacking March 2006

e3-hacking@earth.li

18 participants
36 discussions

restoring factory settings
by Denise McGhee 19 Mar '06

19 Mar '06

hi you seem to be clued up on this e-mailer thing, i was just wondering if you know how to restore the settings on it, i just bought it the other day and everything seems to be working exept the caller display, i have the new e3 version. i plug in my older version emailer plus and bingo my caller display works. so i can't understand why it's not working on my new one, so i figured it might be something i've done during registration or something! Cheers! Mrs Denise McGhee

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NAND problems
by Mark Underwood 16 Mar '06

16 Mar '06

I may have worked out why after writing to NAND using our kernel PBL tool doesn't load the old stuff from NAND. I think the problem is to do with the format of the OOB data and/or ECC format. I tried to modify the kernel parameters of the old kernel using our kernel and MTD tools rather the PBL tool (as I hadn't updated the NAND writing routines). I dumped /dev/mtd1 to my USB stick and created a modified version with the changed command line. After flashing my modified version of mtd1 to my E3 I power cycled it and it just sat there. Fortunately PBL still works and so I booted our kernel and re-flashed the original image and power cycled again, but my E3 still didn't boot the old kernel. My guess is that PBL is doing a badblobk check on the flash as it searches for images and find's the pages that I have modified are bad and thus refuses to load them. If I'm right then is could be a problem trying to get PBL to load u-boot. Flashing u-boot with pbltool should mean that PBL could load u-boot, but it might scan the entire flash for images and give up because it thinks there are too many bad images, or if it can't find enough images (I'm not sure how PBL handles loading stuff from flash, does it boot the first image with the correct header or just it know it needs to find 3 or more valid images). Mark ___________________________________________________________ NEW Yahoo! Cars - sell your car and browse thousands of new and used cars online! http://uk.cars.yahoo.com/

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LCD colour fix patch
by Mark Underwood 14 Mar '06

14 Mar '06

The patch fixes the palette for 12-bit so you get a nice tux and white text :) Mark ___________________________________________________________ NEW Yahoo! Cars - sell your car and browse thousands of new and used cars online! http://uk.cars.yahoo.com/

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Re: Re: [E3-hacking] Cleaned up patches inc LCD support.
by Matt Callow 06 Mar '06

06 Mar '06

> > Excellent. I'd mapped it in in my patch, but not got round to > registering it with the 8250 driver. That's something I can cross off my > todo list. Do you have a patch to enable this I can add? I'll sort one out. > > Currently I'm working on the boot process. I have u-boot supporting the > E3 NAND flash now, and reading the jffs2 fs (though very slowly; I think > I might try the kernel just in raw NAND). You can see a basic boot at: > > http://pastebin.ca/44626 Great. I guess loading the kernel from raw NAND will be fine as long as you can handle back blocks? Have you considered making calls to the PBL to read the NAND? There is a program for the e2 (e2-monitor) which does this. You'd have to find the address to call, but I see you've already done some disassembly of PBL. > > I'm going to try wrapping u-boot up in a LDR block to see if I can get > PBL to load it, leading to a standalone boot process hopefully. > Now that will be good... > Does anyone still have an E3 running 2.4 with shell access working? Any > chance of giving me the output of /proc/dfd with the phone on and off > hook? I'm guessing the hook switch hangs off a GPIO line. On Hook: GPIO_DATA_INPUT =0xfb93 GPIO_DATA_INPUT bits 1 0 1 1 1 0 0 1 0 0 1 1 Off Hook: GPIO_DATA_INPUT =0xfb83 GPIO_DATA_INPUT bits 1 0 1 1 1 0 0 0 0 0 1 1 I also tested the other keys and found: RECALL released/pressed GPIO_DATA_INPUT =0xfb93/0x7b93 REDIAL/P released/pressed GPIO_DATA_INPUT =0xfb93/0xbb93 > > > Chris Lawson hinted that the codec is connected to one of the DSP > > Cliff. ;) Sorry Cliff! > > AMS_DELTA_LATCH2_MODEM_CODEC isn't what you're looking for, is it? Thats probably the one. Thanks! Matt

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Re: [E3-hacking] Cleaned up patches inc LCD support.
by Matt Callow 06 Mar '06

06 Mar '06

> Ok. I've spent a while trying to clean up the patchset and work out what > was required and what wasn't for the kernel. These are now all up at: > > http://the.earth.li/pub/e3/2.6.15/ > That's great. I have it all running on my e3 now. Thanks to everyone who has helped to get this far. I've started trying to get the internal modem to work. I can talk to it via ttyS1 and can do normal modem stuff with it. Haven't managed to use it as a phone yet though. Chris Lawson hinted that the codec is connected to one of the DSP serial ports, but the data sheet for the modem shows the codec connected directly to the modem. Is there a switch somewhere (in on the the latches) to control what the codec is connected to? Matt

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Cleaned up patches inc LCD support.
by Jonathan McDowell 04 Mar '06

04 Mar '06

Ok. I've spent a while trying to clean up the patchset and work out what was required and what wasn't for the kernel. These are now all up at: http://the.earth.li/pub/e3/2.6.15/ I've included a pre-built kernel, a version of u-boot that has the machine type set to the Delta and a rootfs that includes some flash tools. Oh, and has the fix for the command line parsing stuff. J. -- ] http://www.earth.li/~noodles/ [] You non-conformists are all alike. [ ] PGP/GPG Key @ the.earth.li [] [ ] via keyserver, web or email. [] [ ] RSA: 4DC4E7FD / DSA: 5B430367 [] [

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RE: [E3-hacking] sound?!
by Cliff Lawson 03 Mar '06

03 Mar '06

Damn, I wish our h/w designers had told us about these aic23 (who he?) on the board - to think of all those weeks and months we wasted developing DSP software to drive the modem codec through McBSP1 when there was a far easier solution sitting there on the board unused. It must be a VERY small chip though as it's managing to hide in both the schematics and a visual observation of the actual board! Cliff > -----Original Message----- > > I'm talking about the aic23 stero codec which the E3 seems to > have 2 of ?! You don't need the DSP > either as the BSP that sends the sound samples (via I2S) can > be mapped to either the DSP or the > CPU. This e-mail and any attachments are confidential and intended exclusively for the addressee. If you are not the intended recipient please delete it from your system and notify the sender immediately. This message is attributed to the sender and may not necessarily reflect the views of Amstrad Plc or its subsidiaries. For further information on Amstrad Plc please visit our website: www.amstrad.com Amstrad Plc. Brentwood House 169 Kings Road Brentwood Essex CM14 4EF Registered in England : No. 955321

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RE: [E3-hacking] sound?!
by Cliff Lawson 03 Mar '06

03 Mar '06

Jasmine, I disagree with that. We've got mplayer running on Deltas and streaming video from an NFS server but the 150MHz OMAP can only just about cope with 5fps 480x320 doing DivX decode. This would be a perfect application for someone to look at - to port the codec part of mplayer to run as a coprocessor task on the DSP. Having said that the switching time on the passive STN panel is something like 200ms (c.f. 16ms or even 8ms on your typical TFT PC panel!). So the LCD gets a bit blurry above about 5fps anyway but it could be a SMOOTHER "blurry" if the codec ran on the C55 ;-) Cliff > -----Original Message----- > > ...uh, given that the DSP is basically just a C55 with a little MMU > that can only be programmed from the ARM side, what exactly do you > envisage doing with it? In cellphones it's used for mp3 playback and > speech coding, but that's probably not so useful on E3. > > -J. This e-mail and any attachments are confidential and intended exclusively for the addressee. If you are not the intended recipient please delete it from your system and notify the sender immediately. This message is attributed to the sender and may not necessarily reflect the views of Amstrad Plc or its subsidiaries. For further information on Amstrad Plc please visit our website: www.amstrad.com Amstrad Plc. Brentwood House 169 Kings Road Brentwood Essex CM14 4EF Registered in England : No. 955321

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RE: [E3-hacking] sound?!
by Cliff Lawson 03 Mar '06

03 Mar '06

Jonathan, Spot on as always. The two ways to make noise are to either play one of 48 fixed "notes" from the PWT or to stream PCM to the modem codec (after switching it to take control rather than allowing the modem to control it) which is the way we play polyphonic ringtones, Spectrum 128 sound and audio on MPEG adverts. But to do this requires code running on the C55x DSP as only it mcbsp2 (think it's 2, maybe 1 though!) is connected to the codec chip and that mcbsp is a DSP "private" device and can't be programmed from the ARM side of the OMAP. For Linux use I'm therefore gonna suggest that you are probably limited to PWT and your choice of the 12 notes in each of four octaves. Cliff > -----Original Message----- > From: Jonathan McDowell [mailto:noodles@earth.li] > > The only other option I can see for talking to the handset/speaker/mic > is via the modem codec. This e-mail and any attachments are confidential and intended exclusively for the addressee. If you are not the intended recipient please delete it from your system and notify the sender immediately. This message is attributed to the sender and may not necessarily reflect the views of Amstrad Plc or its subsidiaries. For further information on Amstrad Plc please visit our website: www.amstrad.com Amstrad Plc. Brentwood House 169 Kings Road Brentwood Essex CM14 4EF Registered in England : No. 955321

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Join #emailer on freenode IRC ?
by M P 02 Mar '06

02 Mar '06

Since the activity is picking up considerably on this project, I'd like to invite people on IRC to join #emailer on freenode.net It'll be easier to get people interested, and we'll be able to follow some of the progress "live" !

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e3-hacking March 2006