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| CarlFK | shenki: thanks. | 00:08 |
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| mithro | Can everyone retweet https://twitter.com/TimVideosUs/status/841833734747774977 ? | 02:21 |
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| shenki | done | 05:27 |
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| mithro | shenki, futaris_ here is Hasjim | 06:31 |
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| mithro | futarisWeb: Hi! | 06:33 |
| futarisWeb | Hi. Just grabbing the Xilinx ISE DS Lin 14.7 1015 tarball at the moment | 06:33 |
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| shenki | futarisWeb: what are you looking to work on? | 06:45 |
| futarisWeb | Getting the Linux kernel running in qemu, and the HDMI2USB eventually. | 06:47 |
| shenki | okay | 06:52 |
| shenki | there's not much reason to get ISE for working on that | 06:52 |
| shenki | it doesn't hurt to get familiar with everything | 06:52 |
| shenki | but you don't need it | 06:52 |
| futarisWeb | Understood. I'm just after a schematic / block diagram / device tree of what runs on the HDMI2USB. It's my understanding that the milkymist machine specification runs fine on qemu-lm32? | 06:54 |
| shenki | it did once upon a time | 06:54 |
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| shenki | i don't think anyone has worked on it in many years | 06:55 |
| futarisWeb | Ok. So no one knows when it broke? | 06:55 |
| shenki | it might still work. im not sure | 06:55 |
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| futarisWeb | Ok. I'll try and let everyone know. In any case, I've got to go in a few minutes. | 06:56 |
| futarisWeb | Thanks for the links in the e-mails. | 06:56 |
| shenki | no worries | 06:56 |
| shenki | what timezone are you in? | 06:56 |
| futarisWeb | Based in Brisbane (GMT+10). | 06:56 |
| shenki | ah easy :) | 06:56 |
| futarisWeb | I will probably be on later tonight. | 06:57 |
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| fysal | hi, i want to know what should i do?....tasks to start with? | 07:39 |
| paddatrapper | fysal: https://code.timvideos.us/contribute/ | 07:43 |
| paddatrapper | fysal: https://github.com/timvideos/getting-started/issues | 07:43 |
| tpb | Title: Issues · timvideos/getting-started · GitHub (at github.com) | 07:43 |
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| fysal | thank you tpb | 07:49 |
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| mithro | Yay! Bunnie tweeted about us - https://twitter.com/bunniestudios/status/841912749479366657 | 08:57 |
| shenki | mithro: so did i | 09:05 |
| shenki | what are you trying to say? | 09:05 |
| mithro | shenki: Bunnie has more followers than you do :-P | 09:14 |
| shenki | this is true | 09:15 |
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| tvCommitBot | [website] mithro pushed 3 new commits to master: https://git.io/vyMbo | 10:08 |
| tvCommitBot | website/master b6f1a2f Tim 'mithro' Ansell: Removing banner. | 10:08 |
| tvCommitBot | website/master bd487eb Tim 'mithro' Ansell: Big update to the Summer-Of-Code page. | 10:08 |
| tvCommitBot | website/master 63fed3c Tim 'mithro' Ansell: Merge remote-tracking branch 'origin/master' | 10:08 |
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| tvCommitBot | [gst-switch] mithro pushed 1 new commit to master: https://git.io/vyMhf | 10:48 |
| tvCommitBot | gst-switch/master f78bc50 Tim Ansell: Update README about voctomix. | 10:48 |
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| tvCommitBot | [website] mithro pushed 1 new commit to master: https://git.io/vyMht | 10:48 |
| tvCommitBot | website/master 0f84e33 Tim 'mithro' Ansell: Updating s/gst-switch/voctomix/ | 10:48 |
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| mithro | shenki: Well, I just spent a couple of hours updating websites -- I'm going to go home and go to bed I think | 10:49 |
| mithro | shenki: Can you take a look at my updates to the GSoC page? | 10:59 |
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| tvCommitBot | [gst-switch] mithro closed pull request #214: [WIP] Fix recording output format (master...recording-fix) https://git.io/vJrHG | 11:06 |
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| shenki | mithro: sure | 11:23 |
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| shenki | more lm32 qemu stuff: https://fossies.org/linux/qemu/hw/lm32/lm32_boards.c | 12:41 |
| tpb | Title: QEMU: hw/lm32/lm32_boards.c | Fossies (at fossies.org) | 12:41 |
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| futaris | Shenki: looks like more old code from 2010. Ideally getting lm32 to the stage where virtio net / block works would be ideal. They have virtio-mem on arm, etc. | 13:42 |
| shenki | virtio requires pci. i doubt we want to go down that path | 13:43 |
| futaris | Does the jpg encoder just send an interrupt after every full frame capture. | 13:43 |
| futaris | virtio-mem doesn't require pci. | 13:43 |
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| futaris | I've used it on my chromebook arm a few years ago, with kvm. Cortex-A15. | 13:45 |
| shenki | the direction we'd prefer is to emulate the litex devices in qemu | 13:46 |
| shenki | so you can run the firmware as-is | 13:46 |
| futaris | You'll have a big hit in performance for block io and network. I can understand, particularly for the driver for the jpeg encoder... | 13:54 |
| futaris | https://wiki.linaro.org/PeterMaydell/KVM/HowTo/KVMGuestSetup | 13:54 |
| tpb | Title: PeterMaydell/KVM/HowTo/KVMGuestSetup - Linaro Wiki (at wiki.linaro.org) | 13:54 |
| futaris | Generally qemu modifies / generates the device tree on the fly anyway. | 13:56 |
| shenki | the jpeg encoder is in hardware | 14:00 |
| shenki | software controls some of the encoder settings, but the encoding and shuffling of frames is done by hardware | 14:01 |
| futaris | Ok. I'll look at the bare metal firmware, to see how it's done. | 14:04 |
| shenki | mithro: i don't know where we keep the up to date description of how the system is laid out | 14:04 |
| shenki | futaris: https://github.com/timvideos/HDMI2USB-misoc-firmware/tree/master/firmware/lm32 | 14:04 |
| tpb | Title: HDMI2USB-misoc-firmware/firmware/lm32 at master · timvideos/HDMI2USB-misoc-firmware · GitHub (at github.com) | 14:04 |
| shenki | futaris: it's not the easiest to read. but as you can see there's no memcpy_frame anywhere, nor is there any encode_jpeg | 14:05 |
| mithro | https://github.com/timvideos/HDMI2USB-misoc-firmware/tree/nextgen/firmware | 14:07 |
| tpb | Title: HDMI2USB-misoc-firmware/firmware at nextgen · timvideos/HDMI2USB-misoc-firmware · GitHub (at github.com) | 14:07 |
| mithro | https://github.com/timvideos/HDMI2USB-misoc-firmware/blob/nextgen/doc/architecture.png | 14:07 |
| tpb | Title: HDMI2USB-misoc-firmware/architecture.png at nextgen · timvideos/HDMI2USB-misoc-firmware · GitHub (at github.com) | 14:07 |
| shenki | that second picture is where it's at | 14:08 |
| shenki | futaris: as you can see, the softcore sits over to the left not doing all that much | 14:08 |
| shenki | the system could run without it, assuming you hardcoded some default configuration | 14:08 |
| shenki | what the softcore is good for is providing diagnostics and configuration of the IP cores | 14:09 |
| mithro | The soft core basically just sets the input / output locations for DMA engines | 14:10 |
| futaris | Ok. But aren't you planning on using the softcore & linux to do more with the OTG USB and/or Ethernet? | 14:11 |
| shenki | that's a possability, yep | 14:14 |
| shenki | booting linux would be a big milestone | 14:14 |
| futaris | Alright. | 14:17 |
| mithro | futaris: Yes, but in both cases it would probably be with hardware assisted offload | 14:18 |
| mithro | and as shenki points out, Linux needs to boot + do simple things like a UART and stuff first | 14:18 |
| futaris | Yeah, Linux with a UART is always the first step in any board bringup. After initial printk. | 14:19 |
| shenki | :) | 14:20 |
| mithro | I noticed that flterm has gdb passthru of some sort? | 14:23 |
| shenki | funny you mention that | 14:25 |
| shenki | i've just spent three hours trying to get a gdb stub working | 14:25 |
| shenki | i think it's time to get qemu working again, to make this easier to debug | 14:26 |
| mithro | In? | 14:26 |
| shenki | i need gdb so i can debug my gdb | 14:26 |
| shenki | in lm32 on the mimasv2 | 14:26 |
| mithro | qemu won't help with sdcard I don't think? | 14:26 |
| mithro | We should dust off my adv_debug_sys stuff | 14:27 |
| shenki | no sdcard involved | 14:27 |
| mithro | (but that was or1k only) | 14:27 |
| shenki | this is all c code and excpetion handling | 14:27 |
| shenki | (c and asm) | 14:27 |
| shenki | typing is getting bad, i'd better head off | 14:28 |
| shenki | ttyl | 14:28 |
| futaris | How is the sd card connected? spi mode or sd card protocol? | 14:28 |
| mithro | futaris: neither at the moment :-P | 14:28 |
| mithro | shenki: I'll look at that stuff on the weekend | 14:29 |
| futaris | Would litesata ( https://github.com/enjoy-digital/litesata?files=1 ) fit in the FPGA? | 14:33 |
| tpb | Title: litesata/ at master · enjoy-digital/litesata · GitHub (at github.com) | 14:33 |
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| mithro | futaris: depends on the board, the opsis - definitely | 14:35 |
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