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maemo.org - Talk (https://talk.maemo.org/index.php)
-   Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)
-   -   RX-51 BME Replacement (https://talk.maemo.org/showthread.php?t=93183)

marmistrz 2015-05-14 07:44
Re: RX-51 BME Replacement
 
I'm having severe problems with my phone, bme replacement is one of the suspects. Is this enough to remove the bme replacement?

Code:
apt-get install bme-rx-51=0.8.55+0m5 dsme-thermalobject-surface=0.
0.1+0m5 hald-addon-bme=0.0.17+0m5 libbmeipc0=0.8.55+0m5

Akkumaru 2015-06-06 03:34
Re: RX-51 BME Replacement
 
after multiple times of trying to calibrate I have been unsuccessful all the time. As reaching low battery, I turn on offline mode and turn display brightness to minimum while having the screen on all the time. I've also just let it die without changing any settings. I've also made it die while playing a video. All unsuccessful. Also I am sure the VDQ states 1 but idk it never calibrates. Help?

zod 2021-08-24 07:15
Re: RX-51 BME Replacement
 
1 Attachment(s)
After strugging to calibrate battery almost a year I decided to take deeper look.
Correct solution is to calibrate according to instructions. Tried this two times but failed. VDQ turned to 0 too early. Next time i'll also disable modem and maybe kill some more proccesses.
Next was to fix status-area-applet-battery or hald-addon-bme to report LMD when /sys/class/power_supply/bq27200-0/capacity is empty and LMD itself has reasonable value but I went easiest way and just disabled Pali's code in bq27x00_battery kernel module.
Works fine for me as my Last Measured Discharge (LMD) is 1155mAh. When the calibration succeeds I'll probably revert to original module so this will be temporary workaround.

If you have same problem, ie battery needs calibration but LMD is something reasonable then you can install kernel-power==1:2.6.28-10power53 and use attached Attachment 41486.
After coping bq27x00_battery.ko to /lib/modules/current/ just 'rmmod bq27x00_battery && modprobe bq27x00_battery'

To revert back just reinstall kernel-power-modules

Patches to Pali's patches:
Code:
--- kernel-power.bak/debian/patches/bq27x00-fix-nac.diff    2021-08-19 14:18:10.000000000 +0300
+++ kernel-power-2.6.28/debian/patches/bq27x00-fix-nac.diff    2021-08-19 16:18:07.299138619 +0300
@@ -10,7 +10,7 @@
 +    bool is_bq27500 = di->chip == BQ27500;
 +
 +    flags = bq27x00_read(di, BQ27x00_REG_FLAGS, !is_bq27500);
-+    if (flags >= 0 && !is_bq27500 && (flags & BQ27000_FLAG_CI))
++    if (0 && flags >= 0 && !is_bq27500 && (flags & BQ27000_FLAG_CI))
 +        return -ENODATA;
 +
      return bq27x00_battery_read_charge(di, BQ27x00_REG_NAC);
--- kernel-power.bak/debian/patches/bq27x00-upstream.diff    2021-08-19 14:18:10.000000000 +0300
+++ kernel-power-2.6.28/debian/patches/bq27x00-upstream.diff    2021-08-24 08:13:24.560397092 +0300
@@ -38,7 +38,7 @@
 +#include <linux/power/bq27x00_battery.h>
 
 -#define DRIVER_VERSION            "1.0.0"
-+#define DRIVER_VERSION            "1.2.0"
++#define DRIVER_VERSION            "1.2.0x"
 
  #define BQ27x00_REG_TEMP        0x06
  #define BQ27x00_REG_VOLT        0x08
@@ -362,9 +362,14 @@
 +
 +    cache.flags = bq27x00_read(di, BQ27x00_REG_FLAGS, is_bq27500);
 +    if (cache.flags >= 0) {
-+        if (!is_bq27500 && (cache.flags & BQ27000_FLAG_CI)) {
++        /* We only have to read charge design full once */
++        if (di->charge_design_full <= 0)
++            di->charge_design_full = bq27x00_battery_read_ilmd(di);
++        cache.charge_full = bq27x00_battery_read_lmd(di);
++
++        if (!is_bq27500 && ((cache.flags & BQ27000_FLAG_CI) || 1) && cache.charge_full==di->charge_design_full) {
 +            dev_info(di->dev, "battery is not calibrated! ignoring capacity values\n");
-+            cache.capacity = -ENODATA;
++            cache.capacity = -ENODATA; // or BL-5J default 1320mAh ?
 +            cache.energy = -ENODATA;
 +            cache.time_to_empty = -ENODATA;
 +            cache.time_to_empty_avg = -ENODATA;
@@ -376,14 +381,9 @@
 +            cache.time_to_empty = bq27x00_battery_read_time(di, BQ27x00_REG_TTE);
 +            cache.time_to_empty_avg = bq27x00_battery_read_time(di, BQ27x00_REG_TTECP);
 +            cache.time_to_full = bq27x00_battery_read_time(di, BQ27x00_REG_TTF);
-+            cache.charge_full = bq27x00_battery_read_lmd(di);
 +        }
 +        cache.temperature = bq27x00_battery_read_temperature(di);
 +        cache.cycle_count = bq27x00_battery_read_cyct(di);
-+
-+        /* We only have to read charge design full once */
-+        if (di->charge_design_full <= 0)
-+            di->charge_design_full = bq27x00_battery_read_ilmd(di);
      }
Some useful links:
https://wiki.maemo.org/Bme_replacement
https://talk.maemo.org/showpost.php?...&postcount=846
https://talk.maemo.org/showpost.php?...93&postcount=2
https://talk.maemo.org/showthread.php?t=95816
http://maemo.org/packages/view/bnf/ // use bnf-i2c when CI=1 and using original bq27x00_battery.ko


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