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n810bm: Set minimum voltage threshold to 3200

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SVN-Revision: 25433
This commit is contained in:
Michael Büsch 2011-02-09 20:09:49 +00:00
parent 2d3ed6dc2d
commit 970b4c6a72
1 changed files with 13 additions and 14 deletions
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27
target/linux/omap24xx/patches-2.6.37/900-n810-battery-management.patch
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@ -41,8 +41,8 @@ Index: linux-2.6.37/drivers/cbus/Makefile
Index: linux-2.6.37/drivers/cbus/n810bm_main.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.37/drivers/cbus/n810bm_main.c 2011-02-09 13:47:23.831144291 +0100
@@ -0,0 +1,1169 @@
+++ linux-2.6.37/drivers/cbus/n810bm_main.c 2011-02-09 19:05:18.435536304 +0100
@@ -0,0 +1,1168 @@
+/*
+ * Nokia n810 battery management
+ *
@ -86,7 +86,7 @@ Index: linux-2.6.37/drivers/cbus/n810bm_main.c
+#define N810BM_PMM_BLOCK_SIZE 0x600
+
+#define N810BM_CHECK_INTERVAL (HZ * 2)
+#define N810BM_MIN_VOLTAGE_THRES 3300 /* Absolute minimum voltage threshold */
+#define N810BM_MIN_VOLTAGE_THRES 3200 /* Absolute minimum voltage threshold */
+
+
+/* RETU_ADC_BSI
@ -612,7 +612,6 @@ Index: linux-2.6.37/drivers/cbus/n810bm_main.c
+ struct n810bm, periodic_check_work);
+ u16 status;
+ bool battery_was_present, charger_was_present;
+ bool force_charge = 0;
+ int mv;
+
+ mutex_lock(&bm->mutex);
@ -646,23 +645,23 @@ Index: linux-2.6.37/drivers/cbus/n810bm_main.c
+ bm->charger_present ? "plugged in" : "removed");
+ }
+
+ if (bm->battery_present && !lipocharge_is_charging(&bm->charger)) {
+ if ((bm->battery_present && !bm->charger_present) ||
+ !n810bm_known_battery_present(bm)){
+ /* We're draining the battery */
+ mv = n810bm_measure_batt_voltage(bm);
+ if (mv < 0)
+ n810bm_emergency(bm, "check timer: Failed to measure");
+ if (!bm->charger_present) {
+ if (mv < N810BM_MIN_VOLTAGE_THRES) {
+ n810bm_emergency(bm, "check timer: "
+ "Minimum voltage threshold reached");
+ }
+ force_charge = 1;
+ if (mv < 0) {
+ n810bm_emergency(bm,
+ "check: Failed to measure voltage");
+ }
+ if (mv < N810BM_MIN_VOLTAGE_THRES) {
+ n810bm_emergency(bm,
+ "check: Minimum voltage threshold reached");
+ }
+ }
+
+ if (bm->charger_present && n810bm_known_battery_present(bm)) {
+ /* Known battery and charger are connected */
+ if (bm->charger_enabled || force_charge) {
+ if (bm->charger_enabled) {
+ /* Charger is enabled */
+ if (!lipocharge_is_charging(&bm->charger)) {
+ //TODO start charging, if battery is below some threshold