int bq51221_set_voreg(struct i2c_client *client, int default_value)
{
u8 data = 0;
int ret = 0;
int retry_cnt =0;
union power_supply_propval value;
struct bq51221_charger_data *charger = i2c_get_clientdata(client);
return 0; // concept chagned, vout is always 5V
if (charger->pdata->pad_mode == BQ51221_PAD_MODE_PMA) {
pr_info("%s PMA MODE, do not set Voreg \n", __func__);
return 0;
}
psy_do_property("battery", get,
POWER_SUPPLY_PROP_CAPACITY, value);
if ((value.intval >= charger->pdata->wireless_cc_cv) && !default_value)
default_value = 1;
if (default_value) {
/* init VOREG with default value */
ret = bq51221_reg_write(client, BQ51221_REG_CURRENT_REGISTER, 0x01);
if(ret < 0) {
while(retry_cnt++ < 3) {
msleep(50);
pr_debug("%s retry_cnt = %d, ret =%d \n",__func__, retry_cnt, ret);
/* init VOREG with default value */
ret = bq51221_reg_write(client, BQ51221_REG_CURRENT_REGISTER, 0x01);
data = bq51221_reg_read(client, BQ51221_REG_CURRENT_REGISTER);
if(ret >= 0) {
pr_debug("%s VOREG = 0x%x \n", __func__, data);
break;
}
}
}
data = bq51221_reg_read(client, BQ51221_REG_CURRENT_REGISTER);
pr_info("%s VOREG = 0x%x 5.0V, cnt(%d)\n", __func__, data, retry_cnt);
} else {
ret = bq51221_reg_write(client, BQ51221_REG_CURRENT_REGISTER, 0x02);
if(ret < 0) {
while(retry_cnt++ < 3) {
msleep(50);
pr_debug("%s retry_cnt = %d, ret =%d \n",__func__, retry_cnt, ret);
/* init VOREG with default value */
ret = bq51221_reg_write(client, BQ51221_REG_CURRENT_REGISTER, 0x02);
data = bq51221_reg_read(client, BQ51221_REG_CURRENT_REGISTER);
if(ret >= 0) {
pr_debug("%s VOREG = 0x%x \n", __func__, data);
break;
}
}
}
data = bq51221_reg_read(client, BQ51221_REG_CURRENT_REGISTER);
pr_info("%s VOREG = 0x%x 5.5V, cnt(%d)\n", __func__, data, retry_cnt);
}
return ret;
}
int bq51221_set_full_charge_info(struct i2c_client *client)
{
int data = 0;
int ret = 0, i = 0;
int retry_cnt =0;
pr_info("%s\n", __func__);
for(i=0; i< 3; i++) {
/* send cs100 */
ret = bq51221_reg_write(client, BQ51221_REG_USER_HEADER, BQ51221_EPT_HEADER_CS100);
ret = bq51221_reg_write(client, BQ51221_REG_PROP_PACKET_PAYLOAD, BQ51221_CS100_VALUE);
if(ret < 0) {
while(retry_cnt++ < 3) {
msleep(50);
pr_info("%s retry_cnt = %d, ret =%d \n",__func__, retry_cnt, ret);
/* send cs100 */
ret = bq51221_reg_write(client, BQ51221_REG_USER_HEADER, BQ51221_EPT_HEADER_CS100);
ret = bq51221_reg_write(client, BQ51221_REG_PROP_PACKET_PAYLOAD, BQ51221_CS100_VALUE);
if(ret >= 0)
break;
}
return ret;
}
/* send end packet */
data = bq51221_reg_read(client, BQ51221_REG_MAILBOX);
data &= !BQ51221_SEND_USER_PKT_DONE_MASK;
ret = bq51221_reg_write(client, BQ51221_REG_MAILBOX, data);
/* check packet error */
data = bq51221_reg_read(client, BQ51221_REG_MAILBOX);
data &= BQ51221_SEND_USER_PKT_ERR_MASK;
data = data >> 5;
pr_info("%s error pkt = 0x%x \n",__func__, data);
if(data == BQ51221_PTK_ERR_NO_ERR) {
pr_err("%s sent CS100!\n",__func__);
ret = 1;
} else {
pr_err("%s can not send CS100! err pkt = 0x%x\n",__func__, data);
ret = -1;
}
msleep(300);
}
return ret;
}
void bq51221_wireless_chg_init(struct i2c_client *client)
{
int data = 0;
union power_supply_propval value;
struct bq51221_charger_data *charger = i2c_get_clientdata(client);
pr_info("%s\n", __func__);
psy_do_property("battery", get,
POWER_SUPPLY_PROP_CAPACITY, value);
/* init I limit(IOREG) */
bq51221_reg_write(client, BQ51221_REG_CURRENT_REGISTER2, BQ51221_IOREG_100_VALUE);
data = bq51221_reg_read(client, BQ51221_REG_CURRENT_REGISTER2);
pr_info("%s IOREG = 0x%x \n", __func__, data);
/* init CEP timing */
/* init RCVD PWR */
/* read pad mode */
bq51221_get_pad_mode(client);
pr_info("%s siop = %d \n" ,__func__, charger->pdata->siop_level );
if ((value.intval < charger->pdata->wireless_cc_cv) &&
(charger->pdata->pad_mode == BQ51221_PAD_MODE_WPC) &&
(charger->pdata->siop_level == 100) &&
!charger->pdata->default_voreg) {
/* set VOREG set 5.5V*/
bq51221_set_voreg(charger->client, 0);
} else {
/* init VOREG with default value */
bq51221_set_voreg(charger->client, 1);
}
}
int bq51221_set_over_temperuture_info(struct i2c_client *client)
{
int pad_mode = 0;
int data = 0;
int ret = 0;
pr_info("%s\n", __func__);
/* read pad mode PMA = 1, WPC = 0 (Status bit)*/
pad_mode = bq51221_reg_read(client, BQ51221_REG_INDICATOR);
pr_info("%s pad_mode = %d \n", __func__,pad_mode);
if(pad_mode > 0)
pad_mode &= BQ51221_POWER_MODE_MASK;
if(pad_mode) {
pr_info("%s PMA MODE, send EOC \n", __func__);
data = bq51221_reg_read(client, BQ51221_REG_MAILBOX);
data |= BQ51221_SEND_EOC_MASK;
ret = bq51221_reg_write(client, BQ51221_REG_MAILBOX, data);
} else {
pr_info("%s WPC MODE, send EPT-OT \n", __func__);
ret = bq51221_reg_write(client, BQ51221_REG_USER_HEADER, BQ51221_EPT_HEADER_EPT);
ret = bq51221_reg_write(client, BQ51221_REG_PROP_PACKET_PAYLOAD, BQ51221_EPT_CODE_OVER_TEMPERATURE);
/* send end packet */
data = bq51221_reg_read(client, BQ51221_REG_MAILBOX);
data &= !BQ51221_SEND_USER_PKT_DONE_MASK;
ret = bq51221_reg_write(client, BQ51221_REG_MAILBOX, data);
/* check packet error */
data = bq51221_reg_read(client, BQ51221_REG_MAILBOX);
data &= BQ51221_SEND_USER_PKT_ERR_MASK;
data = data >> 5;
pr_info("%s error pkt = 0x%x \n",__func__, data);
if(data != BQ51221_PTK_ERR_NO_ERR) {
pr_err("%s can not send CS100! err pkt = 0x%x\n",__func__, data);
ret = -1;
}
}
return ret;
}
static void bq51221_charger_shutdown(struct i2c_client *client)
{
struct bq51221_charger_data *charger = i2c_get_clientdata(client);
int data = 0;
if(charger->pdata->pad_mode != BQ51221_PAD_MODE_NONE) {
/* init VOREG set 5.0V*/
bq51221_reg_write(client, BQ51221_REG_CURRENT_REGISTER, 0x01);
data = bq51221_reg_read(client, BQ51221_REG_CURRENT_REGISTER);
pr_info("%s VOREG = 0x%x \n", __func__, data);
}
}
static int bq51221_get_pad_mode(struct i2c_client *client)
{
int ret = 0;
int retry_cnt =0;
struct bq51221_charger_data *charger = i2c_get_clientdata(client);
if(charger->pdata->pad_mode != BQ51221_PAD_MODE_NONE) {
/* read pad mode PMA = 1, WPC = 0 (Status bit)*/
ret = bq51221_reg_read(client, BQ51221_REG_INDICATOR);
if(ret < 0) {
while(retry_cnt++ < 3) {
msleep(50);
pr_info("%s retry_cnt = %d, ret =%d \n",__func__, retry_cnt, ret);
/* read pad mode PMA = 1, WPC = 0 (Status bit)*/
ret = bq51221_reg_read(client, BQ51221_REG_INDICATOR);
if(ret >= 0)
break;
}
}
pr_info("%s pad_mode = %d \n", __func__,ret);
if(ret >= 0) {
ret &= BQ51221_POWER_MODE_MASK;
if(ret == 0)
charger->pdata->pad_mode = BQ51221_PAD_MODE_WPC;
else if (ret == 1)
charger->pdata->pad_mode = BQ51221_PAD_MODE_PMA;
else
charger->pdata->pad_mode = BQ51221_PAD_MODE_WPC;
}
else
ret = 0;
}
return ret;
}
void bq51221_wireless_chg_init(struct i2c_client *client)
{
int data = 0;
union power_supply_propval value;
pr_info("%s\n", __func__);
psy_do_property("battery", get,
POWER_SUPPLY_PROP_CAPACITY, value);
/* init I limit(IOREG) */
bq51221_reg_write(client, BQ51221_REG_CURRENT_REGISTER2, BQ51221_IOREG_100_VALUE);
data = bq51221_reg_read(client, BQ51221_REG_CURRENT_REGISTER2);
pr_info("%s IOREG = 0x%x \n", __func__, data);
/* init CEP timing */
/* init RCVD PWR */
/* read pad mode */
bq51221_get_pad_mode(client);
}
int bq51221_set_end_power_transfer(struct i2c_client *client, int ept_mode)
{
int pad_mode = 0;
int data = 0;
int ret = 0;
pr_info("%s\n", __func__);
switch(ept_mode)
{
case END_POWER_TRANSFER_CODE_OVER_TEMPERATURE:
/* read pad mode PMA = 1, WPC = 0 (Status bit)*/
pad_mode = bq51221_reg_read(client, BQ51221_REG_INDICATOR);
pr_info("%s pad_mode = %d \n", __func__,pad_mode);
if(pad_mode > 0)
pad_mode &= BQ51221_POWER_MODE_MASK;
if(pad_mode) {
pr_info("%s PMA MODE, send EOC \n", __func__);
data = bq51221_reg_read(client, BQ51221_REG_MAILBOX);
data |= BQ51221_SEND_EOC_MASK;
ret = bq51221_reg_write(client, BQ51221_REG_MAILBOX, data);
} else {
pr_info("%s WPC MODE, send EPT-OT \n", __func__);
ret = bq51221_reg_write(client, BQ51221_REG_USER_HEADER, BQ51221_EPT_HEADER_EPT);
ret = bq51221_reg_write(client, BQ51221_REG_PROP_PACKET_PAYLOAD, BQ51221_EPT_CODE_OVER_TEMPERATURE);
/* send end packet */
data = bq51221_reg_read(client, BQ51221_REG_MAILBOX);
data &= !BQ51221_SEND_USER_PKT_DONE_MASK;
ret = bq51221_reg_write(client, BQ51221_REG_MAILBOX, data);
/* check packet error */
data = bq51221_reg_read(client, BQ51221_REG_MAILBOX);
data &= BQ51221_SEND_USER_PKT_ERR_MASK;
data = data >> 5;
pr_info("%s error pkt = 0x%x \n",__func__, data);
if(data != BQ51221_PTK_ERR_NO_ERR) {
pr_err("%s can not send ept! err pkt = 0x%x\n",__func__, data);
ret = -1;
}
}
break;
case END_POWER_TRANSFER_CODE_RECONFIGURE:
pr_info("%s send EPT-Reconfigure \n", __func__);
ret = bq51221_reg_write(client, BQ51221_REG_USER_HEADER, BQ51221_EPT_HEADER_EPT);
ret = bq51221_reg_write(client, BQ51221_REG_PROP_PACKET_PAYLOAD, BQ51221_EPT_CODE_RECONFIGURE);
/* send end packet */
data = bq51221_reg_read(client, BQ51221_REG_MAILBOX);
data &= !BQ51221_SEND_USER_PKT_DONE_MASK;
ret = bq51221_reg_write(client, BQ51221_REG_MAILBOX, data);
/* check packet error */
data = bq51221_reg_read(client, BQ51221_REG_MAILBOX);
data &= BQ51221_SEND_USER_PKT_ERR_MASK;
data = data >> 5;
pr_info("%s error pkt = 0x%x \n",__func__, data);
if(data != BQ51221_PTK_ERR_NO_ERR) {
pr_err("%s can not send ept! err pkt = 0x%x\n",__func__, data);
ret = -1;
}
break;
default:
pr_info("%s this ept mode is not reserved \n",__func__);
ret = -1;
break;
}
return ret;
}