e3-hacking November 2009

e3-hacking@earth.li

4 participants
3 discussions

Adding the keyboard (mailboard) support
by Janusz Krzysztofik 30 Nov '09

30 Nov '09

Hi, I have managed to refresh Matt's Amstrad Delta keyboard patch, created against linux-omap-2.6.16-omap2. Now it applies cleanly on top of curent linux-omap for-next, and seems to work flawlessly. I have also made some modifications in order to avoid breaking support for the hook switch that has been added recently (thanks to what you discovered about it a few years ago). Matt (I hope you still read the e3-hacking list), don't you mind if I submit the modified patch to the linux-omap mailing list in order to get it included in the linux-omap tree first and then pushed into the mainline? Jonathan, can you remember why the keyboard patch never found it's way into the linux-omap tree? If you know of any isues with it, I could try to solve them before submitting. Thanks, Janusz

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Amstrad E3 support status for 2.6.32
by Janusz Krzysztofik 15 Nov '09

15 Nov '09

Hi, The kernel release 2.6.32 is almost out. I have just downloaded and tested 2.6.32-rc7 successfully (I hope there will be no more fixes required). After unpacking it, I run: ARCH=arm make ams_delta_defconfig then build the kernel in a usual way. Using old E3_release_v2.tar.gz with uImage replaced with the one just built (arch/arm/boot/uImage), I was able to boot the machine, log into the install-initrd, both from ttyS0 and framebuffer console, get access to a USB stick, verify on-board flash is accessible. I did not proceed with ams_delta_install, but I think it would run without problems. Compared to that old 2.6.16-omap1 with ams_delta patches, 2.6.32 mainline kernel doesn't yet support the detachable keyboard (mailboard) and doesn't provide a driver for LCD contrast and backlight setting, but it has LED support introduced in 2.6.17. There is still no support for the camera (it was present once in 2.6.19). Full framebuffer/LCD driver, frozen in the OMAP tree for a long time, finally found it's wat into the mainline. Old sound driver has been replaced with a new one, ASoC based. Both ALSA and OSS interface are fully usable. The new driver supports full duplex and handset/speakerphone switching using the hook switch and/or a mixer control. To get those features working, ldattach utility (sadly not present on the old initramfs) must be used in order to load a line discipline #19 onto the modem line (has been moved to ttyS3). The hook switch state can be simply detrmined by examining /sys/class/gpio/gpio4/value file contents, it also generates regular input events over the /dev/input/event1 device interface. The kernel with ams_delta_defconfig applied supports both old distributions, like Familiar that E3_release_v2 was based on, and new, like Angstrom, that may require EABI + Thumb instructions turned on. Power management is turned on by default with not much visible results yet. Starting with this kernel release, the machine, equipped with a network adapter and a suitable userspace software, can ultimately be used as an IP phone. Personally, I use asterisk combined with lirc for the purpose. Thanks, Janusz

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Re: [E3-hacking] [PATCH 3/8] omap1: Amstrad Delta defconfig fixes
by Janusz Krzysztofik 11 Nov '09

11 Nov '09

Wednesday 11 November 2009 04:00:57 Tony Lindgren napisał(a): > From: Janusz Krzysztofik <jkrzysz(a)tis.icnet.pl> > > The patch provides the following fixes: > > - keep kernel small enough to boot with standard tools, > - ensure compatibility with both new and legacy distros, > - turn on support for recently added or fixed hardware features. > > Created and tested against linux-2.6.32-rc5. > > Signed-off-by: Janusz Krzysztofik <jkrzysz(a)tis.icnet.pl> > Signed-off-by: Tony Lindgren <tony(a)atomide.com> Tony, Please do not apply this patch yet, or revert it if already applied. It would exhibit the LCD DMA not working bug when CONFIG_PM=y, as I tried to state while submitting v2 of my fix that corrected the issue (http://www.spinics.net/lists/linux-omap/msg19963.html). Sorry for not stating that again with this submission (or not waiting with the submission after the bug is fixed first). That happened after I misinterpreted your comment "Sounds good to me." (http://www.spinics.net/lists/linux-omap/msg19965.html) as your acceptance for the patch v2 as posted, with my self proposed changes, that resulted in v3 submission directly (http://www.spinics.net/lists/linux-omap/msg20059.html), that has been objected by you next. Thanks, Janusz > --- > arch/arm/configs/ams_delta_defconfig | 24 +++++++++++++++++------- > 1 files changed, 17 insertions(+), 7 deletions(-) > > diff --git a/arch/arm/configs/ams_delta_defconfig > b/arch/arm/configs/ams_delta_defconfig index 7647325..e8f7380 100644 > --- a/arch/arm/configs/ams_delta_defconfig > +++ b/arch/arm/configs/ams_delta_defconfig > @@ -55,10 +55,10 @@ CONFIG_BLK_DEV_INITRD=y > CONFIG_INITRAMFS_SOURCE="" > CONFIG_CC_OPTIMIZE_FOR_SIZE=y > CONFIG_SYSCTL=y > -# CONFIG_EMBEDDED is not set > +CONFIG_EMBEDDED=y > CONFIG_UID16=y > CONFIG_SYSCTL_SYSCALL=y > -CONFIG_KALLSYMS=y > +# CONFIG_KALLSYMS is not set > # CONFIG_KALLSYMS_ALL is not set > # CONFIG_KALLSYMS_EXTRA_PASS is not set > CONFIG_HOTPLUG=y > @@ -224,7 +224,7 @@ CONFIG_CPU_CP15_MMU=y > # > # Processor Features > # > -# CONFIG_ARM_THUMB is not set > +CONFIG_ARM_THUMB=y > # CONFIG_CPU_ICACHE_DISABLE is not set > # CONFIG_CPU_DCACHE_DISABLE is not set > CONFIG_CPU_DCACHE_WRITETHROUGH=y > @@ -248,7 +248,7 @@ CONFIG_CPU_DCACHE_WRITETHROUGH=y > # CONFIG_HIGH_RES_TIMERS is not set > CONFIG_PREEMPT=y > CONFIG_HZ=100 > -# CONFIG_AEABI is not set > +CONFIG_AEABI=y > # CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set > CONFIG_SELECT_MEMORY_MODEL=y > CONFIG_FLATMEM_MANUAL=y > @@ -299,7 +299,9 @@ CONFIG_BINFMT_ELF=y > # > # Power management options > # > -# CONFIG_PM is not set > +CONFIG_PM=y > +# CONFIG_SUSPEND is not set > +CONFIG_PM_RUNTIME=y > > # > # Networking > @@ -670,7 +672,7 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 > CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 > # CONFIG_INPUT_JOYDEV is not set > # CONFIG_INPUT_TSDEV is not set > -# CONFIG_INPUT_EVDEV is not set > +CONFIG_INPUT_EVDEV=y > # CONFIG_INPUT_EVBUG is not set > > # > @@ -784,6 +786,7 @@ CONFIG_I2C_OMAP=y > # > # CONFIG_SPI is not set > # CONFIG_SPI_MASTER is not set > +CONFIG_GPIO_SYSFS=y > > # > # Dallas's 1-wire bus > @@ -820,6 +823,7 @@ CONFIG_LEDS_AMS_DELTA=y > CONFIG_LEDS_TRIGGERS=y > CONFIG_LEDS_TRIGGER_TIMER=y > CONFIG_LEDS_TRIGGER_HEARTBEAT=y > +CONFIG_LEDS_TRIGGER_DEFAULT_ON=y > > # > # Multimedia devices > @@ -896,7 +900,13 @@ CONFIG_LOGO_LINUX_CLUT224=y > # > # Sound > # > -# CONFIG_SOUND is not set > +CONFIG_SOUND=y > +CONFIG_SND=y > +CONFIG_SND_MIXER_OSS=y > +CONFIG_SND_PCM_OSS=y > +CONFIG_SND_SOC=y > +CONFIG_SND_OMAP_SOC=y > +CONFIG_SND_OMAP_SOC_AMS_DELTA=y > > # > # HID Devices > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo(a)vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html

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e3-hacking November 2009