Re: [PATCH v2] qmimodem: support wake on SMS receive

Some modems, like Quectel EC25, support waking the host platform from a suspend state upon an SMS reception. Current SMS handling configures the modem to not save incoming messages. On platforms where the modem's interfaces (eg, cdc-wdm, wwan, etc) disconnect on suspend and reconnect on resume, oFono will re-initialize. This can cause lost messages upon resume because the QMI indication is sent before oFono is ready. Changes to support suspend/resume with wake on SMS: - On startup: 1. Configure modem to save messages to NV and notify for class NONE. 2. Delete all processed messages in modem memory to free space. 3. Get list of unread messages, then get and delete each. - After startup: 1. Process message upon event indication and delete. 2. Then check for possibly more messages to process. --- drivers/qmimodem/sms.c | 344 +++++++++++++++++++++++++++++++++++++++++-------- drivers/qmimodem/wms.h | 77 ++++++++--- 2 files changed, 348 insertions(+), 73 deletions(-)

+static void delete_msg(struct ofono_sms *sms, uint8_t tag) { + struct sms_data *data = ofono_sms_get_data(sms); + struct qmi_param *param; + qmi_result_func_t func = NULL; + + DBG(""); + + param = qmi_param_new(); + if (param == NULL) + goto done; + + qmi_param_append_uint8(param, QMI_WMS_PARAM_DEL_STORE, + QMI_WMS_STORAGE_TYPE_NV); + + if (tag == QMI_WMS_MT_UNDEFINE) { + DBG("delete read msg type %d ndx %d", data->rd_msg_id.type, + data->rd_msg_id.ndx); + + /* delete 1 msg */ + qmi_param_append_uint32(param, QMI_WMS_PARAM_DEL_NDX, + data->rd_msg_id.ndx); + func = delete_msg_cb; + } else { + DBG("delete msg tag %d mode %d", tag, data->msg_mode); + + /* delete all msgs from 1 tag type */ + qmi_param_append_uint8(param, QMI_WMS_PARAM_DEL_TYPE, tag); + } + + qmi_param_append_uint8(param, QMI_WMS_PARAM_DEL_MODE, data->msg_mode); + + if (qmi_service_send(data->wms, QMI_WMS_DELETE, param, + func, sms, NULL) > 0) return; + + qmi_param_free(param); + +done: + return; +}