static int max8997_muic_handle_adc(struct max8997_muic_info *info, int adc) { int ret = 0; switch (adc) { case MAX8997_ADC_GROUND: ret = max8997_muic_handle_usb(info, MAX8997_USB_HOST, true); break; case MAX8997_ADC_MHL: max8997_muic_handle_mhl(info, true); break; case MAX8997_ADC_JIG_USB_1: case MAX8997_ADC_JIG_USB_2: ret = max8997_muic_handle_usb(info, MAX8997_USB_DEVICE, true); break; case MAX8997_ADC_DESKDOCK: case MAX8997_ADC_CARDOCK: ret = max8997_muic_handle_dock(info, adc, true); break; case MAX8997_ADC_JIG_UART: ret = max8997_muic_handle_jig_uart(info, true); break; case MAX8997_ADC_OPEN: ret = max8997_muic_handle_adc_detach(info); break; default: break; } info->pre_adc = adc; return ret; }
static int max8997_muic_handle_charger_type(struct max8997_muic_info *info, enum max8997_muic_charger_type charger_type) { struct max8997_muic_platform_data *mdata = info->muic_pdata; u8 adc; int ret; ret = max8997_read_reg(info->muic, MAX8997_MUIC_REG_STATUS1, &adc); if (ret) { dev_err(info->dev, "failed to read muic register\n"); goto out; } switch (charger_type) { case MAX8997_CHARGER_TYPE_NONE: if (mdata->charger_callback) mdata->charger_callback(false, charger_type); if (info->pre_charger_type == MAX8997_CHARGER_TYPE_USB) { max8997_muic_handle_usb(info, MAX8997_USB_DEVICE, false); } break; case MAX8997_CHARGER_TYPE_USB: if ((adc & STATUS1_ADC_MASK) == MAX8997_ADC_OPEN) { max8997_muic_handle_usb(info, MAX8997_USB_DEVICE, true); } if (mdata->charger_callback) mdata->charger_callback(true, charger_type); break; case MAX8997_CHARGER_TYPE_DOWNSTREAM_PORT: case MAX8997_CHARGER_TYPE_DEDICATED_CHG: case MAX8997_CHARGER_TYPE_500MA: case MAX8997_CHARGER_TYPE_1A: if (mdata->charger_callback) mdata->charger_callback(true, charger_type); break; default: break; } info->pre_charger_type = charger_type; out: return ret; }
static int max8997_muic_chg_handler(struct max8997_muic_info *info) { int chg_type; bool attached; int adc; chg_type = max8997_muic_get_cable_type(info, MAX8997_CABLE_GROUP_CHG, &attached); switch (chg_type) { case MAX8997_CHARGER_TYPE_NONE: break; case MAX8997_CHARGER_TYPE_USB: adc = info->status[0] & STATUS1_ADC_MASK; adc >>= STATUS1_ADC_SHIFT; if ((adc & STATUS1_ADC_MASK) == MAX8997_MUIC_ADC_OPEN) { max8997_muic_handle_usb(info, MAX8997_USB_DEVICE, attached); } break; case MAX8997_CHARGER_TYPE_DOWNSTREAM_PORT: extcon_set_state_sync(info->edev, EXTCON_CHG_USB_CDP, attached); break; case MAX8997_CHARGER_TYPE_DEDICATED_CHG: extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP, attached); break; case MAX8997_CHARGER_TYPE_500MA: extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SLOW, attached); break; case MAX8997_CHARGER_TYPE_1A: extcon_set_state_sync(info->edev, EXTCON_CHG_USB_FAST, attached); break; default: dev_err(info->dev, "failed to detect %s unknown chg cable (type:0x%x)\n", attached ? "attached" : "detached", chg_type); return -EINVAL; } return 0; }
static int max8997_muic_adc_handler(struct max8997_muic_info *info) { int cable_type; bool attached; int ret = 0; /* Check cable state which is either detached or attached */ cable_type = max8997_muic_get_cable_type(info, MAX8997_CABLE_GROUP_ADC, &attached); switch (cable_type) { case MAX8997_MUIC_ADC_GROUND: ret = max8997_muic_handle_usb(info, MAX8997_USB_HOST, attached); if (ret < 0) return ret; break; case MAX8997_MUIC_ADC_MHL: extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached); break; case MAX8997_MUIC_ADC_FACTORY_MODE_USB_OFF: case MAX8997_MUIC_ADC_FACTORY_MODE_USB_ON: ret = max8997_muic_handle_usb(info, MAX8997_USB_DEVICE, attached); if (ret < 0) return ret; break; case MAX8997_MUIC_ADC_AV_CABLE_NOLOAD: case MAX8997_MUIC_ADC_FACTORY_MODE_UART_ON: ret = max8997_muic_handle_dock(info, cable_type, attached); if (ret < 0) return ret; break; case MAX8997_MUIC_ADC_FACTORY_MODE_UART_OFF: ret = max8997_muic_handle_jig_uart(info, attached); break; case MAX8997_MUIC_ADC_REMOTE_S1_BUTTON: case MAX8997_MUIC_ADC_REMOTE_S2_BUTTON: case MAX8997_MUIC_ADC_REMOTE_S3_BUTTON: case MAX8997_MUIC_ADC_REMOTE_S4_BUTTON: case MAX8997_MUIC_ADC_REMOTE_S5_BUTTON: case MAX8997_MUIC_ADC_REMOTE_S6_BUTTON: case MAX8997_MUIC_ADC_REMOTE_S7_BUTTON: case MAX8997_MUIC_ADC_REMOTE_S8_BUTTON: case MAX8997_MUIC_ADC_REMOTE_S9_BUTTON: case MAX8997_MUIC_ADC_REMOTE_S10_BUTTON: case MAX8997_MUIC_ADC_REMOTE_S11_BUTTON: case MAX8997_MUIC_ADC_REMOTE_S12_BUTTON: case MAX8997_MUIC_ADC_RESERVED_ACC_1: case MAX8997_MUIC_ADC_RESERVED_ACC_2: case MAX8997_MUIC_ADC_RESERVED_ACC_3: case MAX8997_MUIC_ADC_RESERVED_ACC_4: case MAX8997_MUIC_ADC_RESERVED_ACC_5: case MAX8997_MUIC_ADC_CEA936_AUDIO: case MAX8997_MUIC_ADC_PHONE_POWERED_DEV: case MAX8997_MUIC_ADC_TTY_CONVERTER: case MAX8997_MUIC_ADC_UART_CABLE: case MAX8997_MUIC_ADC_CEA936A_TYPE1_CHG: case MAX8997_MUIC_ADC_CEA936A_TYPE2_CHG: case MAX8997_MUIC_ADC_AUDIO_MODE_REMOTE: /* * This cable isn't used in general case if it is specially * needed to detect additional cable, should implement * proper operation when this cable is attached/detached. */ dev_info(info->dev, "cable is %s but it isn't used (type:0x%x)\n", attached ? "attached" : "detached", cable_type); return -EAGAIN; default: dev_err(info->dev, "failed to detect %s unknown cable (type:0x%x)\n", attached ? "attached" : "detached", cable_type); return -EINVAL; } return 0; }