/*
* This is invoked when the charge is complete. The conarge complete condition
* is configurable, and can be set to be an input from a charger or, the gauge
* itself can detect charge complete condition.
* On charge complete, if charge cycle is qualified, the gauge learns a
* capacity.
* This is can be invoked from either foreground, or background context.
*/
static void fg_charge_complete(struct cell_state *cell)
{
dev_dbg(cell->dev, "CHG: Charge Complete Detected!\n");
/* Set Charge Complete Flag and Toggle a CC Pin, if configured to */
cell->cc = true;
cell->calibrate = true;
/* Check if we can Learn capacity on Charge */
if (cell->vcq) {
dev_dbg(cell->dev, "LRN: Learned Capacity = %d + %d + %d mAh\n",
cell->learn_q,
cell->learn_offset,
-cell->ocv_total_q);
fg_learn_capacity(cell,
cell->learn_q + cell->learn_offset - cell->ocv_total_q);
}
dev_dbg(cell->dev, "CHG: Setting RM to FCC\n");
/* Set Remaining Capacities to Full */
cell->nac = cell->fcc;
/* Capacity learning complete */
cell->vcq = false;
}
/*
* EDV algorithm, should be called on discharge, adjusts NAC, based
* on the discharge conditions. Also set EDV2, 1, 0 flags if needed
*/
void fg_edv(struct cell_state *cell)
{
/* Check if EDV condition reached and we are above EDV0*/
if (!cell->edv0 && fg_look_for_edv(cell)) {
/* EDV2 point reached */
if (!cell->edv2) {
/* todo : recalibrate? */
cell->edv2 = true;
if (cell->vdq) {
dev_dbg(cell->dev, "LRN: Learned Capacity ="\
" %d + %d + %d + %d mAh\n",
-cell->learn_q,
cell->ocv_total_q,
cell->learn_offset,
cell->nac);
fg_learn_capacity(cell,
-cell->learn_q +
cell->ocv_total_q +
cell->learn_offset +
cell->nac);
}
cell->vdq = false;
fg_init_edv(cell, &cell->config->edv->edv[1]);
} else if (!cell->edv1) {
/* EDV1 point reached */
cell->edv1 = true;
fg_init_edv(cell, &cell->config->edv->edv[0]);
} else {
/* EDV0 point reached */
cell->edv0 = true;
}
}
}
