From ff800b5f7f61983cc19ea87701e245cbccd27d60 Mon Sep 17 00:00:00 2001 From: Christian Franke Date: Sun, 27 Apr 2014 20:59:16 +0200 Subject: cethcan: add aggregate light support - somewhat hacky :/ --- cethcan/cethcan.json | 10 +++++- cethcan/light.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++------ 2 files changed, 93 insertions(+), 11 deletions(-) diff --git a/cethcan/cethcan.json b/cethcan/cethcan.json index ae84cb4..7aedf31 100644 --- a/cethcan/cethcan.json +++ b/cethcan/cethcan.json @@ -15,7 +15,15 @@ { "addr": 1095, "name": "dali.hacklab.west.inner" }, { "addr": 1096, "name": "dali.hacklab.west.middle" }, { "addr": 1097, "name": "dali.hacklab.east.inner" }, - { "addr": 1098, "name": "dali.hacklab.west.outer" } + { "addr": 1098, "name": "dali.hacklab.west.outer" }, + { "name": "dali.hacklab", "slaves": [ + "dali.hacklab.east.outer", + "dali.hacklab.east.middle", + "dali.hacklab.west.inner", + "dali.hacklab.west.middle", + "dali.hacklab.east.inner", + "dali.hacklab.west.outer" + ]} ], "beans": [ { "addr": 256, "name": "toilet.lock", "values": [ "open", "closed" ] }, diff --git a/cethcan/light.c b/cethcan/light.c index da6aefb..e3b20a9 100644 --- a/cethcan/light.c +++ b/cethcan/light.c @@ -10,7 +10,11 @@ struct light { struct can_user *u; char *name; + bool aggregate; + unsigned logical_addr; + size_t slave_count; + struct light **slaves; struct value set, actual; }; @@ -28,6 +32,13 @@ struct light *light_find(const char *name) int light_set(struct light *l, unsigned value) { + if (l->aggregate) { + int ec = 0; + for (size_t i = 0; i < l->slave_count; i++) + ec |= light_set(l->slaves[i], value); + return ec; + } + struct can_message msg; msg.daddr = CANA_LIGHT_F(0, l->logical_addr); msg.dlc = 1; @@ -39,31 +50,60 @@ int light_set(struct light *l, unsigned value) unsigned light_getset(struct light *l) { + if (l->aggregate) { + unsigned long long sum = 0; + size_t count = 0; + + for (size_t i = 0; i < l->slave_count; i++) { + sum += light_getset(l->slaves[i]); + count++; + } + + if (count) + return sum / count; + return 0; + } + return l->set.val; } unsigned light_getact(struct light *l) { + if (l->aggregate) { + unsigned long long sum = 0; + size_t count = 0; + + for (size_t i = 0; i < l->slave_count; i++) { + sum += light_getact(l->slaves[i]); + count++; + } + + if (count) + return sum / count; + return 0; + } + return l->actual.val; } static void light_json_handler(void *arg, json_t *json, enum json_subtype type) { struct light *l = arg; + struct light *p = l->aggregate ? l->slaves[0] : l; json_t *lobj = json_object(); json_object_set_new(lobj, "klass", json_string("light")); - json_object_set_new(lobj, "addr", json_integer(l->logical_addr)); + json_object_set_new(lobj, "addr", json_integer(p->logical_addr)); - json_object_set_new(lobj, "actual", json_integer(l->actual.val)); + json_object_set_new(lobj, "actual", json_integer(light_getact(l))); if (type != JSON_LONGPOLL) - json_object_set_new(lobj, "actual_ts", json_integer(l->actual.valid)); - json_object_set_new(lobj, "actual_tschg", json_integer(l->actual.change)); + json_object_set_new(lobj, "actual_ts", json_integer(p->actual.valid)); + json_object_set_new(lobj, "actual_tschg", json_integer(p->actual.change)); - json_object_set_new(lobj, "set", json_integer(l->set.val)); + json_object_set_new(lobj, "set", json_integer(light_getset(l))); if (type != JSON_LONGPOLL) - json_object_set_new(lobj, "set_ts", json_integer(l->set.valid)); - json_object_set_new(lobj, "set_tschg", json_integer(l->set.change)); + json_object_set_new(lobj, "set_ts", json_integer(p->set.valid)); + json_object_set_new(lobj, "set_tschg", json_integer(p->set.change)); json_object_set_new(json, l->name, lobj); } @@ -75,6 +115,9 @@ static void light_can_handler(void *arg, struct can_message *msg) unsigned laddr; uint8_t dval; + if (l->aggregate) + return; + if ((msg->daddr & CANA_PROTOCOL) == CANA_LIGHT) v = &l->set; if ((msg->daddr & CANA_PROTOCOL) == CANA_SENSOR) @@ -102,15 +145,21 @@ static void light_can_handler(void *arg, struct can_message *msg) int light_init_conf(json_t *config) { struct light *l; + bool aggregate; if (!json_is_object(config)) { lprintf("light config must be an object/dictionary"); return 1; } - if (!json_is_integer(json_object_get(config, "addr"))) { - lprintf("light config must have an 'addr' key"); + if (json_is_integer(json_object_get(config, "addr"))) { + aggregate = false; + } else if (json_is_array(json_object_get(config, "slaves"))) { + aggregate = true; + } else { + lprintf("light config must have an 'addr' key or 'saves'."); return 1; } + if (!json_is_string(json_object_get(config, "name"))) { lprintf("light config must have a 'name' key"); return 1; @@ -118,7 +167,32 @@ int light_init_conf(json_t *config) l = calloc(sizeof(*l), 1); l->name = strdup(json_string_value(json_object_get(config, "name"))); - l->logical_addr = json_integer_value(json_object_get(config, "addr")); + l->aggregate = aggregate; + + if (aggregate) { + json_t *slaves = json_object_get(config, "slaves"); + l->slave_count = json_array_size(slaves); + if (!l->slave_count) { + lprintf("Slave array must not be empty."); + return 1; + } + + l->slaves = calloc(l->slave_count, sizeof(*l->slaves)); + for (size_t i = 0; i < json_array_size(slaves); i++) { + const char *name = json_string_value( + json_array_get(slaves, i) + ); + l->slaves[i] = light_find(name); + if (!l->slaves[i]) { + lprintf("Unknown slave '%s'", name); + return 1; + } + } + } else { + l->logical_addr = json_integer_value( + json_object_get(config, "addr") + ); + } l->u = can_register_alloc(l, light_can_handler, "light[%s]", l->name); l->u->json = light_json_handler; -- cgit v1.2.1