| /* osmo-bsc API to manage lchans, logical channels in GSM cells. */ |
| #pragma once |
| |
| #define LOG_LCHAN_RTP(lchan, level, fmt, args...) do { \ |
| if (lchan->fi_rtp) \ |
| LOGPFSML(lchan->fi_rtp, level, fmt, ## args); \ |
| else \ |
| LOGP(DLMGCP, level, "%s (not initialized) " fmt, gsm_lchan_name(lchan), \ |
| ## args); \ |
| } while(0) |
| |
| struct gsm_lchan; |
| |
| enum lchan_rtp_fsm_state { |
| LCHAN_RTP_ST_WAIT_MGW_ENDPOINT_AVAILABLE, |
| LCHAN_RTP_ST_WAIT_LCHAN_READY, |
| LCHAN_RTP_ST_WAIT_IPACC_CRCX_ACK, |
| LCHAN_RTP_ST_WAIT_IPACC_MDCX_ACK, |
| LCHAN_RTP_ST_WAIT_READY_TO_SWITCH_RTP, |
| LCHAN_RTP_ST_WAIT_MGW_ENDPOINT_CONFIGURED, |
| LCHAN_RTP_ST_READY, |
| LCHAN_RTP_ST_ROLLBACK, |
| LCHAN_RTP_ST_ESTABLISHED, |
| }; |
| |
| enum lchan_rtp_fsm_event { |
| LCHAN_RTP_EV_LCHAN_READY, |
| LCHAN_RTP_EV_READY_TO_SWITCH_RTP, |
| LCHAN_RTP_EV_MGW_ENDPOINT_AVAILABLE, |
| LCHAN_RTP_EV_MGW_ENDPOINT_ERROR, |
| LCHAN_RTP_EV_IPACC_CRCX_ACK, |
| LCHAN_RTP_EV_IPACC_CRCX_NACK, |
| LCHAN_RTP_EV_IPACC_MDCX_ACK, |
| LCHAN_RTP_EV_IPACC_MDCX_NACK, |
| LCHAN_RTP_EV_READY_TO_SWITCH, |
| LCHAN_RTP_EV_MGW_ENDPOINT_CONFIGURED, |
| LCHAN_RTP_EV_ROLLBACK, /*< Give the RTP back to the old lchan, if any */ |
| LCHAN_RTP_EV_ESTABLISHED, /*< All done, forget about the old lchan, if any */ |
| LCHAN_RTP_EV_RELEASE, |
| }; |
| |
| void lchan_rtp_fsm_start(struct gsm_lchan *lchan); |
| struct mgwep_ci *lchan_use_mgw_endpoint_ci_bts(struct gsm_lchan *lchan); |
| bool lchan_rtp_established(struct gsm_lchan *lchan); |
| void lchan_forget_mgw_endpoint(struct gsm_lchan *lchan); |