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crondog
crondog
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ebf1078b43
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From ad8725fb07407deb688813e075b05e790dac2878 Mon Sep 17 00:00:00 2001
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From: Seth Forshee <seth.forshee@canonical.com>
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Date: Tue, 18 Feb 2014 23:07:22 +1100
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Subject: [PATCH] make ektf3k driver report non-MT events too
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Change-Id: Ia4f05b33f06d7a8fc74e65330f9c41df8a8ba7a9
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---
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drivers/input/touchscreen/ektf3k.c | 8 +++++++-
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1 file changed, 7 insertions(+), 1 deletion(-)
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diff --git a/drivers/input/touchscreen/ektf3k.c b/drivers/input/touchscreen/ektf3k.c
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index 4b6a7e7..28fee64 100755
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--- a/drivers/input/touchscreen/ektf3k.c
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+++ b/drivers/input/touchscreen/ektf3k.c
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@@ -967,6 +967,7 @@ static void elan_ktf3k_ts_report_data(struct i2c_client *client, uint8_t *buf)
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fbits = fbits >> 1;
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idx += 3;
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}
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+ input_mt_report_pointer_emulation(ts->input_dev, true);
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input_sync(idev);
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} // checksum
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else {
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@@ -1017,6 +1018,7 @@ static void elan_ktf3k_ts_report_data2(struct i2c_client *client, uint8_t *buf)
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fbits = fbits >> 1;
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idx += 3;
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}
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+ input_mt_report_pointer_emulation(ts->input_dev, true);
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input_sync(idev);
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} // checksum
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else {
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@@ -1542,11 +1544,15 @@ static int elan_ktf3k_ts_probe(struct i2c_client *client,
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}
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ts->input_dev->name = "elan-touchscreen";
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- //set_bit(BTN_TOUCH, ts->input_dev->keybit);
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+ set_bit(BTN_TOUCH, ts->input_dev->keybit);
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ts->abs_x_max = pdata->abs_x_max;
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ts->abs_y_max = pdata->abs_y_max;
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touch_debug(DEBUG_INFO, "[Elan] Max X=%d, Max Y=%d\n", ts->abs_x_max, ts->abs_y_max);
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+ input_set_abs_params(ts->input_dev, ABS_X, pdata->abs_y_min, pdata->abs_y_max, 0, 0); // for 800 * 1280
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+ input_set_abs_params(ts->input_dev, ABS_Y, pdata->abs_x_min, pdata->abs_x_max, 0, 0); // for 800 * 1280
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+ input_set_abs_params(ts->input_dev, ABS_PRESSURE, 0, MAX_FINGER_PRESSURE, 0, 0);
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+
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input_mt_init_slots(ts->input_dev, FINGER_NUM);
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input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X, pdata->abs_y_min, pdata->abs_y_max, 0, 0); // for 800 * 1280
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input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y, pdata->abs_x_min, pdata->abs_x_max, 0, 0);// for 800 * 1280
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--
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1.8.5.3
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@ -0,0 +1,107 @@
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# Arch Linux on Nexus 7 Flo Native
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Here are my instructions on getting Arch Linux ARM natively booting on the
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Nexus 7 Flo. Ideally this would be booting from a usb stick or a dedicated
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partition on the mmc but this is working for me now. Once I get a bluetooth
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keyboard I will try to get it working from a usb stick.
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## BUGS!!!
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There is no frambuffer console :(
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If you cannot get it booting you will need to
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reboot into recovery and check /proc/last_kmsg for the errors. Or try and build
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the UART cable (which I failed at)
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There is only xf86-video-fbdev working and no DRM or anything fancy
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The Software Refresher in the kernel does not work. You will need to run my
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refresher app or fix the kernel :)
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1: I roughly followed the instructions form
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https://github.com/borh/nexus-7-2013-arch-scripts to get a working chroot
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first.
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2: Edit the init script to point to your arch.img or partition
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3: Edit and Run makebootimage.sh
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4: fastboot boot newboot
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5: ???
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6: Profit
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## To get WiFi Working
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A normal Nexus 7 Flo boot will call /system/bin/conn_init which does a whole
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lot of verifying your mac address and then writes out a config with the mac
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address in it. Very annoying. To get around this you need a copy of the wifi
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configs and manually enable the wifi driver since it does not start on boot.
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The firmware.service is only needed since I do not load the firmware in the
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initramfs (which I am haven't done yet)
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1: Copy /system/vendor/firmware [android] to /usr/lib/firmware [arch]
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2: rm /usr/lib/firmware/wlan/prima/{WCNSS_qcom_cfg.ini,WCNSS_qcom_wlan_nv.bin} <-- these are simlinks
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3: cp /data/misc/wifi/{WCNSS_qcom_cfg.ini,WCNSS_qcom_wlan_nv.bin} /usr/lib/firmware/wlan/prima/ <-- these are the files which conn_init writes your mac address to
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4: Copy firmware.service to /etc/systemd/system/
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5: ln -s /etc/systemd/system/firmware.service /etc/systemd/system/multi-user.target.wants/firmware.service
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6: Create a wpa_supplicant-nl80211@wlan0.service with your wpa_supplicant.conf
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details
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7: ln -s /etc/systemd/system/dhcpcd.service /etc/systemd/system/multi-user.target.wants/dhcpcd.service
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8: ln -s /etc/systemd/system/sshd.service /etc/systemd/system/multi-user.target.wants/sshd.service
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NOTE: The wifi drivers are really flakey. You might have better luck with a
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static ip. If anything fails reboot into recovery and check /proc/last_kmsg
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## To get X working
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Since there is no framebuffer console you cannot start X manually (unless you
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are able to get ssh working, see above) Auto login is your friend.
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Be sure to install a window manager or something first and then follow
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https://wiki.archlinux.org/index.php/Automatic_login_to_virtual_console and
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https://wiki.archlinux.org/index.php/Start_X_at_Login
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Your .xinitrc should contain something like
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~/refresher &
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exec awesome
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## Refreshing (refresher.c)
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Since the MSMFB_SW_REFRESHER does not seem to be working i wrote this instead.
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Just compile and put in you ~/ or whereever so xinit can run it.
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# Kernel stuff
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## To get Touchscreen working
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Apply 0001-make-ektf3k-driver-report-non-MT-events-too.patch
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## Kernel configs
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I used the following additional configs to get this working. Some might not be
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necessary but it helps with debugging
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I havent figured out how to get fbdev working with RGBA8888 so use RGB565 for
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now
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CONFIG_FB_MSM_DEFAULT_DEPTH_RGB565=y
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CONFIG_FHANDLE=y
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CONFIG_DEVTMPFS=y
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CONFIG_UTS_NS=y
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CONFIG_IPC_NS=y
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CONFIG_USER_NS=y
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CONFIG_PID_NS=y
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CONFIG_NET_NS=y
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CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
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CONFIG_FANOTIFY=y
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CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
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CONFIG_DETECT_HUNG_TASK=y
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CONFIG_DEBUG_SPINLOCK=y
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CONFIG_DEBUG_MUTEXES=y
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CONFIG_DEBUG_ATOMIC_SLEEP=y
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CONFIG_STACKTRACE=y
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CONFIG_DEBUG_BUGVERBOSE=y
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CONFIG_SECURITY_SELINUX_BOOTPARAM=y
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## Build initramfs
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1: Edit makebootimage.sh with paths
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2: cd systemd-initramfs; find . | cpio -o -H newc | gzip > ../minimal.initramfs
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3: ./makebootimage.sh
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#!/bin/bash
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KERNEL=~/android/system/out/target/product/flo/kernel
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INITRAMFS=minimal.initramfs
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~/android/system/out/host/linux-x86/bin/mkbootimg --kernel $KERNEL --cmdline "console=ttyHSL0,115200,n8 console=tty1 androidboot.hardware=flo user_debug=31 msm_rtb.filter=0x3F ehci-hcd.park=3 selinux=0" --base 0x80200000 --pagesize 2048 --ramdisk_offset 0x02000000 --ramdisk $INITRAMFS --output newboot
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@ -0,0 +1,65 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <getopt.h>
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#include <time.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/mman.h>
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#include <linux/fb.h>
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struct fb_info{
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int fd;
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void *ptr;
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struct fb_var_screeninfo var;
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struct fb_fix_screeninfo fix;
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};
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void fb_getinfo(struct fb_info *fb_info){
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printf("fb res %dx%d virtual %dx%d, line_len %d\n",
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fb_info->var.xres, fb_info->var.yres,
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fb_info->var.xres_virtual, fb_info->var.yres_virtual,
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fb_info->fix.line_length);
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printf("dim %dmm x %dmm\n", fb_info->var.width, fb_info->var.height);
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printf("xoffset %d yoffset %d\n", fb_info->var.xoffset, fb_info->var.yoffset);
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}
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int fb_open(struct fb_info *fb_info){
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int fd = open("/dev/fb0", O_RDWR);
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if(fd < 0){
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printf("Failed to open fb\n");
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return 1;
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}
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fb_info->fd = fd;
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return 0;
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}
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void flip_buffer(struct fb_info *fb_info, int n){
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if( ioctl(fb_info->fd, FBIOPAN_DISPLAY, &fb_info->var) < 0 ){
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printf("Failed FBIOPAN_DISPLAY\n");
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}
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}
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int main(int argc, char *argv[]){
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setpriority(PRIO_PROCESS, 0, -20);
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struct fb_info fb_info;
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fb_open(&fb_info);
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while(1){
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flip_buffer(&fb_info,0);
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usleep(16666);
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}
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return 0;
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}
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@ -0,0 +1 @@
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sbin/init
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Binary file not shown.
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@ -0,0 +1,30 @@
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#!/sbin/busybox1 sh
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_PATH="$PATH"
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export BB=/sbin/busybox1
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cd /
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$BB mount -t devtmpfs devtmpfs /dev -o mode=0755,nosuid
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$BB mkdir /dev/pts
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$BB mkdir /dev/socket
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$BB mount -t proc proc /proc -o nosuid,noexec,nodev
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$BB mount -t sysfs sys /sys -o nosuid,noexec,nodev
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$BB mdev -s
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$BB mount -t ext4 /dev/mmcblk0p30 /data
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$BB mknod /dev/loop256 b 7 256
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$BB losetup /dev/loop256 /data/arch.img
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$BB mount -t ext4 -o rw,noatime /dev/loop256 /data/arch
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$BB mkdir /cache
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$BB mount -t ext4 /dev/mmcblk0p23 /cache
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export PATH="${_PATH}"
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#exec /sbin/init2
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exec /sbin/busybox1 switch_root /data/arch /sbin/init
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