drivers/net/fddi/skfp/rmt.c

Source file repositories/reference/linux-study-clean/drivers/net/fddi/skfp/rmt.c

File Facts

System
Linux kernel
Corpus path
drivers/net/fddi/skfp/rmt.c
Extension
.c
Size
16192 bytes
Lines
643
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (smc->r.rm_join || smc->r.rm_loop) {
			/*
			 * According to the standard the MAC must be reset
			 * here. The FORMAC will be initialized and Claim
			 * and Beacon Frames will be uploaded to the MAC.
			 * So any change of Treq will take effect NOW.
			 */
			sm_ma_control(smc,MA_RESET) ;
			GO_STATE(RM1_NON_OP) ;
			break ;
		}
		break ;
	case ACTIONS(RM1_NON_OP) :
		start_rmt_timer0(smc,smc->s.rmt_t_non_op,RM_TIMEOUT_NON_OP) ;
		stop_rmt_timer1(smc) ;
		stop_rmt_timer2(smc) ;
		sm_ma_control(smc,MA_BEACON) ;
		DB_RMTN(1, "RMT : RING DOWN");
		RS_SET(smc,RS_NORINGOP) ;
		smc->r.sm_ma_avail = FALSE ;
		rmt_indication(smc,0) ;
		ACTIONS_DONE() ;
		break ;
	case RM1_NON_OP :
		/*RM12*/
		if (cmd == RM_RING_OP) {
			RS_SET(smc,RS_RINGOPCHANGE) ;
			GO_STATE(RM2_RING_OP) ;
			break ;
		}
		/*RM13*/
		else if (cmd == RM_TIMEOUT_NON_OP) {
			smc->r.bn_flag = FALSE ;
			smc->r.no_flag = TRUE ;
			GO_STATE(RM3_DETECT) ;
			break ;
		}
		break ;
	case ACTIONS(RM2_RING_OP) :
		stop_rmt_timer0(smc) ;
		stop_rmt_timer1(smc) ;
		stop_rmt_timer2(smc) ;
		smc->r.no_flag = FALSE ;
		if (smc->r.rm_loop)
			smc->r.loop_avail = TRUE ;
		if (smc->r.rm_join) {
			smc->r.sm_ma_avail = TRUE ;
			if (smc->mib.m[MAC0].fddiMACMA_UnitdataEnable)
				smc->mib.m[MAC0].fddiMACMA_UnitdataAvailable = TRUE;
			else
				smc->mib.m[MAC0].fddiMACMA_UnitdataAvailable = FALSE;
		}
		DB_RMTN(1, "RMT : RING UP");
		RS_CLEAR(smc,RS_NORINGOP) ;
		RS_SET(smc,RS_RINGOPCHANGE) ;
		rmt_indication(smc,1) ;
		smt_stat_counter(smc,0) ;
		ACTIONS_DONE() ;
		break ;
	case RM2_RING_OP :
		/*RM21*/
		if (cmd == RM_RING_NON_OP) {
			smc->mib.m[MAC0].fddiMACMA_UnitdataAvailable = FALSE ;
			smc->r.loop_avail = FALSE ;
			RS_SET(smc,RS_RINGOPCHANGE) ;
			GO_STATE(RM1_NON_OP) ;
			break ;
		}
		/*RM22a*/
		else if (cmd == RM_ENABLE_FLAG) {
			if (smc->mib.m[MAC0].fddiMACMA_UnitdataEnable)
			smc->mib.m[MAC0].fddiMACMA_UnitdataAvailable = TRUE ;
				else
			smc->mib.m[MAC0].fddiMACMA_UnitdataAvailable = FALSE ;
		}
		/*RM25*/
		else if (smc->r.dup_addr_test == DA_FAILED) {
			smc->mib.m[MAC0].fddiMACMA_UnitdataAvailable = FALSE ;
			smc->r.loop_avail = FALSE ;
			smc->r.da_flag = TRUE ;
			GO_STATE(RM5_RING_OP_DUP) ;
			break ;
		}
		break ;
	case ACTIONS(RM3_DETECT) :
		start_rmt_timer0(smc,smc->s.mac_d_max*2,RM_TIMEOUT_D_MAX) ;
		start_rmt_timer1(smc,smc->s.rmt_t_stuck,RM_TIMEOUT_T_STUCK) ;
		start_rmt_timer2(smc,smc->s.rmt_t_poll,RM_TIMEOUT_POLL) ;
		sm_mac_check_beacon_claim(smc) ;
		DB_RMTN(1, "RMT : RM3_DETECT");

Annotation

Implementation Notes