static int proc_battery_show(struct seq_file *m, void *v)
{
unsigned short mV;
int raw;
int i, mx;
struct _batt_cap *tbl = &(batt_cap [0]);
if (pmic_get_voltage(GEN_PURPOSE_AD5, &mV, &raw, 1) == 0) {
seq_printf (m, "%dmV (%d) ", mV, raw);
} else {
seq_printf (m, "---mV (---) ");
}
mx = sizeof(batt_cap) / sizeof(struct _batt_cap);
for ( i = 0 ; i < mx ; i++ , tbl++ ) {
seq_printf (m, " %d:%d", tbl->raw, tbl->cap);
}
seq_printf (m, " caution(%d:%d - %d)", batt_cap[BATT_CAP_CAUTION_LEVEL].raw,
batt_cap[BATT_CAP_CAUTION_LEVEL].cap, batt_sample.mode_caution);
#ifdef USE_BATTERY_LOW_INTERRUPT
if (pmic_get_voltage (GEN_PURPOSE_AD2, &mV, &raw, 0) == 0) {
seq_printf (m, " bpsns:%dmV(%d)", mV, raw);
} else {
seq_printf (m, " bpsns:---mV(---)");
}
#endif /* USE_BATTERY_LOW_INTERRUPT */
#ifdef USE_BATTERY_LOW_POLLING
seq_printf (m, " shutdown(%d:%d) poll:%dsec",
batt_cap[BATT_CAP_SHUTDOWN_LEVEL].raw,
batt_cap[BATT_CAP_SHUTDOWN_LEVEL].cap, batt_poll_interval);
#endif /* USE_BATTERY_LOW_POLLING */
seq_printf (m, "\n");
return 0;
}
/*
* pmic_get_dcinput_voltage (unsigned short *voltage)
* rc 0(DCinput OK) / 1(DCinput Low) / -1(error)
*/
int pmic_get_dcinput_voltage (unsigned short *voltage)
{
unsigned short vv;
int rc = pmic_get_voltage (GEN_PURPOSE_AD7, &vv, 0, 0);
if (voltage != 0) {
*voltage = vv;
}
/*
* judge DCinput good/low
*/
if (rc == 0) {
if (DCIN_GOOD_VOLT <= vv) {
rc = 0; // Good
} else {
rc = 1; // Low
}
}
return rc;
}
static int proc_show(struct seq_file *s, void *p)
{
int i = 0;
COMMON_VALUE_SET *cur_voltage_list = NULL;
unsigned int vol_table_size = 0;
COMMON_RES* cur_channel_res = NULL;
#if 0
/*PMIC IRQ info*/
for (i =PMIC_REG_IRQ1;i<PMIC_IRQ_REG_BUTT;i++)
{
seq_printf(s, "IRQ STATUS:%d; %0x\n",i,pmuirq_desc.irq_stat_reg_buf[i]);
}
#endif
seq_printf(s, "STATUS 0:OFF 1:ON\n");
/*pmic register power channel info*/
for(i = BUCK_ID_BEGIN ;i<PMU_CHANNEL_ID_BUTT;i++)
{
if(0 == pmic_power_status(i))
{
seq_printf(s, "Channel ID:%d STATUS OFF VOL %d\n",i, pmic_get_voltage(i));
}
else if(1 == pmic_power_status(i))
{
seq_printf(s, "Channel ID:%d STATUS ON VOL %d\n",i, pmic_get_voltage(i));
}
udelay(1);
}
/*channel voltage list show*/
for(i = BUCK_ID_BEGIN ;i<LVS_ID_BEGIN;i++)
{
int j = 0;
/*get device res*/
cur_channel_res = pmic_get_channel_res_by_id(i);
if (NULL == cur_channel_res)
{
continue;
}
else if(PMU_CHANNEL_ID_BUTT == (int)cur_channel_res)
{
continue;
}
cur_voltage_list = &(cur_channel_res->value_set);
vol_table_size = cur_voltage_list->value_range_num;
if(0 == vol_table_size)
{
continue;
}
seq_printf(s, "Channel ID:%d VOL_LIST:\n",i);
for(j= 0;j<vol_table_size;j++)
{
seq_printf(s, "%d ",cur_voltage_list->value_range[j]);
}
seq_printf(s, "\n ");
}
return 0;
}
/*
* mc13892_battery_sample (void)
* battery volatge sample for average
* return N - sample count
* return -1 - error
*/
struct _batt_sample {
int mode_caution; /* mode mormal(0)/caution(1) */
int interval; /* sample interval */
int raw; /* sample raw A/D */
int volt; /* sample volt */
int prev_use; /* previous sample use count */
int error; /* sample error */
int update; /* sample update */
};
static struct _batt_sample batt_sample;
static int batt_sample_initialized;
static int batt_sample_rate = 60; /* sample rate (sec) */
static int mc13892_battery_sample (int online, int wait, int force)
{
int i, raw, rc;
int rdata [5], rcnt, rmin, rmax, rttl, fmin, fmax;
/*
* check sample interval
* mormal - 60sec, caution - 5sec
*/
rc = 0;
if (batt_sample_initialized != 0) {
if (batt_sample.mode_caution == 0) {
batt_sample.interval++;
if ((force == 0) &&
(batt_sample.interval < (batt_sample_rate / 5))) {
/*
* not sample timing
*/
return rc;
}
batt_sample.interval = 0;
}
}
/*
* BATT voltage
* lowest (1) (2) (3) highest
* * +- average -+ * (* ignore)
*/
rmin = 0x7fffffff;
rmax = 0;
rcnt = 0;
for ( i = 0 ; i < 5 ; i++ ) {
if (pmic_get_voltage (GEN_PURPOSE_AD5, 0, &raw, 1) == 0) {
rdata [rcnt++] = raw;
if (raw < rmin) {
rmin = raw;
} else if (rmax < raw) {
rmax = raw;
}
} else {
batt_sample.error++;
}
if (wait != 0) {
mdelay ( 10 ); /* 10ms measure interval */
}
}
rttl = 0;
fmin = 0;
fmax = 0;
for ( i = 0 ; i < rcnt ; i++ ) {
if ((fmin == 0) && (rmin == rdata [i])) {
fmin++; /* lowest value ignore */
} else if ((fmax == 0) && (rmax == rdata [i])) {
fmax++; /* highest value ignore */
} else {
rttl += rdata [i];
}
}
if (0 < (rcnt - fmin - fmax)) {
raw = rttl / (rcnt - fmin - fmax);
batt_sample.update++;
rc = rcnt;
} else {
raw = batt_sample.raw;
batt_sample.prev_use++;
rc = -1;
}
/*
* check BATT use(AC adapter disconnect)
* voltage of BATT use is decrease only.
*/
if ((online == 0) && (batt_sample_initialized != 0) && (batt_sample.raw < raw)) {
raw = batt_sample.raw; /* prev sample use */
}
/*
* check normal/caution band
*/
if (raw <= batt_cap [BATT_CAP_CAUTION_LEVEL].raw) {
batt_sample.mode_caution = 1;
} else {
batt_sample.mode_caution = 0;
}
batt_sample.raw = raw;
/*
* Convert voltage
*/
batt_sample.volt = BATT_RAW_TO_VOLT(raw);
batt_sample_initialized = 1;
return rc;
}
