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avb: add more state machine

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This commit is contained in:
Wim Taymans 2022-03-23 09:20:38 +01:00
parent 893251c8eb
commit 0efc02cea6
2 changed files with 239 additions and 28 deletions
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245
src/modules/module-avbtp/mrp.c
View file

@ -26,6 +26,15 @@
#include "mrp.h"
struct attribute {
struct avbtp_mrp_attribute attr;
struct spa_list link;
uint8_t applicant_state;
uint8_t registrar_state;
uint16_t pending_indications;
struct spa_callbacks cb;
};
struct mrp {
struct server *server;
struct spa_hook server_listener;
@ -43,10 +52,23 @@ static const struct server_events server_events = {
.destroy = mrp_destroy,
};
void avbtp_mrp_attribute_init(struct avbtp_mrp *mrp,
struct avbtp_mrp_attribute *attr,
uint8_t type, void *info)
struct avbtp_mrp_attribute *avbtp_mrp_attribute_new(struct avbtp_mrp *mrp,
uint8_t type, uint8_t param,
struct avbtp_mrp_attribute_methods *methods, void *data,
size_t user_size)
{
struct attribute *a;
a = calloc(1, sizeof(*a) + user_size);
if (a == NULL)
return NULL;
a->attr.type = type;
a->attr.param = param;
a->attr.user_data = SPA_PTROFF(a, sizeof(*a), void);
a->cb = SPA_CALLBACKS_INIT(methods, data);
return &a->attr;
}
static void stop_avb_timer(void)
@ -59,49 +81,232 @@ static void start_avb_timer(void)
void avbtp_mrp_update_state(struct avbtp_mrp *mrp,
struct avbtp_mrp_attribute *attr, int event, uint8_t param)
{
struct attribute *a = SPA_CONTAINER_OF(attr, struct attribute, attr);
switch (event) {
case AVBTP_MRP_EVENT_BEGIN:
attr->registrar_state = AVBTP_MRP_MT;
a->registrar_state = AVBTP_MRP_MT;
break;
case AVBTP_MRP_EVENT_RX_NEW:
if (attr->registrar_state == AVBTP_MRP_LV)
if (a->registrar_state == AVBTP_MRP_LV)
stop_avb_timer();
attr->registrar_state = AVBTP_MRP_IN;
attr->pending_indications |= AVBTP_PENDING_JOIN_NEW;
attr->param = param;
a->registrar_state = AVBTP_MRP_IN;
a->pending_indications |= AVBTP_PENDING_JOIN_NEW;
a->attr.param = param;
break;
case AVBTP_MRP_EVENT_RX_JOININ:
case AVBTP_MRP_EVENT_RX_JOINMT:
if (attr->registrar_state == AVBTP_MRP_LV)
if (a->registrar_state == AVBTP_MRP_LV)
stop_avb_timer();
if (attr->registrar_state == AVBTP_MRP_MT) {
attr->pending_indications |= AVBTP_PENDING_JOIN;
attr->param = param;
if (a->registrar_state == AVBTP_MRP_MT) {
a->pending_indications |= AVBTP_PENDING_JOIN;
a->attr.param = param;
}
attr->registrar_state = AVBTP_MRP_IN;
a->registrar_state = AVBTP_MRP_IN;
break;
case AVBTP_MRP_EVENT_RX_LV:
case AVBTP_MRP_EVENT_RX_LVA:
case AVBTP_MRP_EVENT_TX_LVA:
case AVBTP_MRP_EVENT_REDECLARE:
if (attr->registrar_state == AVBTP_MRP_IN) {
if (a->registrar_state == AVBTP_MRP_IN) {
start_avb_timer();
attr->registrar_state = AVBTP_MRP_LV;
a->registrar_state = AVBTP_MRP_LV;
}
break;
case AVBTP_MRP_EVENT_LV_TIMER:
case AVBTP_MRP_EVENT_FLUSH:
if (attr->registrar_state == AVBTP_MRP_LV) {
attr->pending_indications |= AVBTP_PENDING_LEAVE;
attr->param = param;
if (a->registrar_state == AVBTP_MRP_LV) {
a->pending_indications |= AVBTP_PENDING_LEAVE;
a->attr.param = param;
}
attr->registrar_state = AVBTP_MRP_MT;
a->registrar_state = AVBTP_MRP_MT;
break;
default:
break;
}
switch (event) {
case AVBTP_MRP_EVENT_BEGIN:
a->applicant_state = AVBTP_MRP_VO;
break;
case AVBTP_MRP_EVENT_NEW:
a->applicant_state = AVBTP_MRP_VN;
break;
case AVBTP_MRP_EVENT_JOIN:
switch (a->applicant_state) {
case AVBTP_MRP_VO:
case AVBTP_MRP_LO:
a->applicant_state = AVBTP_MRP_VP;
break;
case AVBTP_MRP_LA:
a->applicant_state = AVBTP_MRP_AA;
break;
case AVBTP_MRP_AO:
a->applicant_state = AVBTP_MRP_AP;
break;
case AVBTP_MRP_QO:
a->applicant_state = AVBTP_MRP_QP;
break;
}
break;
case AVBTP_MRP_EVENT_LV:
switch (a->applicant_state) {
case AVBTP_MRP_QP:
a->applicant_state = AVBTP_MRP_QO;
break;
case AVBTP_MRP_AP:
a->applicant_state = AVBTP_MRP_AO;
break;
case AVBTP_MRP_VP:
a->applicant_state = AVBTP_MRP_VO;
break;
case AVBTP_MRP_VN:
case AVBTP_MRP_AN:
case AVBTP_MRP_AA:
case AVBTP_MRP_QA:
a->applicant_state = AVBTP_MRP_LA;
break;
}
break;
case AVBTP_MRP_EVENT_RX_JOININ:
switch (a->applicant_state) {
case AVBTP_MRP_VO:
a->applicant_state = AVBTP_MRP_AO;
break;
case AVBTP_MRP_VP:
a->applicant_state = AVBTP_MRP_AP;
break;
case AVBTP_MRP_AA:
a->applicant_state = AVBTP_MRP_QA;
break;
case AVBTP_MRP_AO:
a->applicant_state = AVBTP_MRP_QO;
break;
case AVBTP_MRP_AP:
a->applicant_state = AVBTP_MRP_QP;
break;
}
SPA_FALLTHROUGH;
case AVBTP_MRP_EVENT_RX_IN:
switch (a->applicant_state) {
case AVBTP_MRP_AA:
a->applicant_state = AVBTP_MRP_QA;
break;
}
SPA_FALLTHROUGH;
case AVBTP_MRP_EVENT_RX_JOINMT:
case AVBTP_MRP_EVENT_RX_MT:
switch (a->applicant_state) {
case AVBTP_MRP_QA:
a->applicant_state = AVBTP_MRP_AA;
break;
case AVBTP_MRP_QO:
a->applicant_state = AVBTP_MRP_AO;
break;
case AVBTP_MRP_QP:
a->applicant_state = AVBTP_MRP_AP;
break;
case AVBTP_MRP_LO:
a->applicant_state = AVBTP_MRP_VO;
break;
}
break;
case AVBTP_MRP_EVENT_RX_LV:
case AVBTP_MRP_EVENT_RX_LVA:
case AVBTP_MRP_EVENT_REDECLARE:
switch (a->applicant_state) {
case AVBTP_MRP_VO:
case AVBTP_MRP_AO:
case AVBTP_MRP_QO:
a->applicant_state = AVBTP_MRP_LO;
break;
case AVBTP_MRP_AN:
a->applicant_state = AVBTP_MRP_VN;
break;
case AVBTP_MRP_AA:
case AVBTP_MRP_QA:
case AVBTP_MRP_AP:
case AVBTP_MRP_QP:
a->applicant_state = AVBTP_MRP_VP;
break;
}
break;
case AVBTP_MRP_EVENT_PERIODIC:
switch (a->applicant_state) {
case AVBTP_MRP_QA:
a->applicant_state = AVBTP_MRP_AA;
break;
case AVBTP_MRP_QP:
a->applicant_state = AVBTP_MRP_AP;
break;
}
break;
case AVBTP_MRP_EVENT_TX:
switch (a->applicant_state) {
case AVBTP_MRP_VP:
case AVBTP_MRP_VN:
case AVBTP_MRP_AN:
case AVBTP_MRP_AA:
case AVBTP_MRP_LA:
case AVBTP_MRP_AP:
case AVBTP_MRP_LO:
// int vector = makeTxEvent(e, st, 0);
// doTx(st, vector);
break;
}
switch (a->applicant_state) {
case AVBTP_MRP_VP:
a->applicant_state = AVBTP_MRP_AA;
break;
case AVBTP_MRP_VN:
a->applicant_state = AVBTP_MRP_AN;
break;
case AVBTP_MRP_AN:
case AVBTP_MRP_AA:
case AVBTP_MRP_AP:
a->applicant_state = AVBTP_MRP_QA;
break;
case AVBTP_MRP_LA:
case AVBTP_MRP_LO:
a->applicant_state = AVBTP_MRP_VO;
break;
}
break;
case AVBTP_MRP_EVENT_TX_LVA:
{
switch (a->applicant_state) {
case AVBTP_MRP_VP:
case AVBTP_MRP_VN:
case AVBTP_MRP_AN:
case AVBTP_MRP_AA:
case AVBTP_MRP_LA:
case AVBTP_MRP_QA:
case AVBTP_MRP_AP:
case AVBTP_MRP_QP:
// int vector = makeTxEvent(e, st, 1);
// doTx(st, vector);
}
switch (a->applicant_state) {
case AVBTP_MRP_VO:
case AVBTP_MRP_LA:
case AVBTP_MRP_AO:
case AVBTP_MRP_QO:
a->applicant_state = AVBTP_MRP_LO;
break;
case AVBTP_MRP_VN:
a->applicant_state = AVBTP_MRP_AN;
break;
case AVBTP_MRP_AN:
case AVBTP_MRP_AA:
case AVBTP_MRP_AP:
case AVBTP_MRP_QP:
a->applicant_state = AVBTP_MRP_QA;
break;
}
break;
}
default:
break;
}
}
void avbtp_mrp_event(struct avbtp_mrp *mrp, struct avbtp_mrp_attribute *attr,

22
src/modules/module-avbtp/mrp.h
View file

@ -106,17 +106,23 @@ struct avbtp_packet_mrp_footer {
struct avbtp_mrp_attribute {
uint8_t type;
uint8_t applicant_state;
uint8_t registrar_state;
uint16_t pending_indications;
uint8_t param;
struct avbtp_mrp_attribute *next;
void *attribute_info;
void *user_data;
};
void avbtp_mrp_attribute_init(struct avbtp_mrp *mrp,
struct avbtp_mrp_attribute *attr,
uint8_t type, void *info);
struct avbtp_mrp_attribute_methods {
#define AVBTP_VERSION_ATTRIBUTE_METHODS 0
uint32_t version;
int (*compare) (void *data, struct avbtp_mrp_attribute *a, struct avbtp_mrp_attribute *b);
int (*merge) (void *data, struct avbtp_mrp_attribute *a, uint8_t *msg, int vector);
};
struct avbtp_mrp_attribute *avbtp_mrp_attribute_new(struct avbtp_mrp *mrp,
uint8_t type, uint8_t param,
struct avbtp_mrp_attribute_methods *methods, void *data,
size_t user_size);
void avbtp_mrp_update_state(struct avbtp_mrp *mrp,
struct avbtp_mrp_attribute *attr, int event, uint8_t param);