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authorcbdev <cb@cbcdn.com>2021-05-01 14:45:12 +0200
committercbdev <cb@cbcdn.com>2021-05-01 14:45:12 +0200
commit6ae73a994b15be73c01ae5d6835297bcff7baa91 (patch)
tree24139b3e50ac1f181944e35167adb0541ce9dcf1 /backends
parent91764dfc3ad86994ce27e5c80a92c034e12b849c (diff)
downloadmidimonster-kinet.tar.gz
midimonster-kinet.tar.bz2
midimonster-kinet.zip
Basic kinet backend skeleton and analysiskinet
Diffstat (limited to 'backends')
-rw-r--r--backends/Makefile8
-rw-r--r--backends/kinet.c106
-rw-r--r--backends/kinet.h54
3 files changed, 166 insertions, 2 deletions
diff --git a/backends/Makefile b/backends/Makefile
index d815f84..5628b4b 100644
--- a/backends/Makefile
+++ b/backends/Makefile
@@ -2,9 +2,9 @@
# Backends that can only be built on Linux
LINUX_BACKENDS = midi.so evdev.so
# Backends that can only be built on Windows (mostly due to the .DLL extension)
-WINDOWS_BACKENDS = artnet.dll osc.dll loopback.dll sacn.dll maweb.dll winmidi.dll openpixelcontrol.dll rtpmidi.dll wininput.dll visca.dll
+WINDOWS_BACKENDS = artnet.dll osc.dll loopback.dll sacn.dll maweb.dll winmidi.dll openpixelcontrol.dll rtpmidi.dll wininput.dll visca.dll kinet.dll
# Backends that can be built on any platform that can load .SO libraries
-BACKENDS = artnet.so osc.so loopback.so sacn.so lua.so maweb.so jack.so openpixelcontrol.so python.so rtpmidi.so visca.so
+BACKENDS = artnet.so osc.so loopback.so sacn.so lua.so maweb.so jack.so openpixelcontrol.so python.so rtpmidi.so visca.so kinet.so
# Backends that require huge dependencies to be installed
OPTIONAL_BACKENDS = ola.so
# Backends that need to be built manually (but still should be included in the clean target)
@@ -39,6 +39,10 @@ artnet.so: ADDITIONAL_OBJS += $(BACKEND_LIB)
artnet.dll: ADDITIONAL_OBJS += $(BACKEND_LIB)
artnet.dll: LDLIBS += -lws2_32
+kinet.so: ADDITIONAL_OBJS += $(BACKEND_LIB)
+kinet.dll: ADDITIONAL_OBJS += $(BACKEND_LIB)
+kinet.dll: LDLIBS += -lws2_32
+
osc.so: ADDITIONAL_OBJS += $(BACKEND_LIB)
osc.dll: ADDITIONAL_OBJS += $(BACKEND_LIB)
osc.dll: LDLIBS += -lws2_32
diff --git a/backends/kinet.c b/backends/kinet.c
new file mode 100644
index 0000000..df259cf
--- /dev/null
+++ b/backends/kinet.c
@@ -0,0 +1,106 @@
+#define BACKEND_NAME "kinet"
+
+/*
+ * This protocol is largely undocumented. As a result,
+ * this backend may in some cases produce unintended
+ * output artifacts.
+ *
+ * Due to lack of consistent access to compliant hardware,
+ * testing is infrequent. If you are able to provide
+ * additional feedback or testing on compatible hardware,
+ * please notify the developers.
+ */
+
+#include <string.h>
+
+#include "libmmbackend.h"
+#include "kinet.h"
+
+#define MAX_FDS 255
+
+static struct {
+ size_t fds;
+ int* fd;
+} global_cfg = {
+ 0
+};
+
+/*
+ * TODO
+ * * detect mode
+ */
+
+MM_PLUGIN_API int init(){
+ backend kinet = {
+ .name = BACKEND_NAME,
+ .conf = kinet_configure,
+ .create = kinet_instance,
+ .conf_instance = kinet_configure_instance,
+ .channel = kinet_channel,
+ .handle = kinet_set,
+ .process = kinet_handle,
+ .start = kinet_start,
+ .shutdown = kinet_shutdown
+ };
+
+ //register backend
+ if(mm_backend_register(kinet)){
+ LOG("Failed to register backend");
+ return 1;
+ }
+ return 0;
+}
+
+static int kinet_configure(char* option, char* value){
+ //TODO
+ return 0;
+}
+
+static int kinet_configure_instance(instance* inst, char* option, char* value){
+ //TODO
+ return 0;
+}
+
+static int kinet_instance(instance* inst){
+ inst->impl = calloc(1, sizeof(kinet_instance_data));
+ if(!inst->impl){
+ LOG("Failed to allocate memory");
+ return 1;
+ }
+
+ return 0;
+}
+
+static channel* kinet_channel(instance* inst, char* spec, uint8_t flags){
+ //TODO
+ return NULL;
+}
+
+static int kinet_set(instance* inst, size_t num, channel** c, channel_value* v){
+ //TODO
+ return 0;
+}
+
+static int kinet_handle(size_t num, managed_fd* fds){
+ //TODO
+ return 0;
+}
+
+static int kinet_start(size_t n, instance** inst){
+ //TODO
+ return 0;
+}
+
+static int kinet_shutdown(size_t n, instance** inst){
+ size_t u;
+ kinet_instance_data* data = NULL;
+
+ for(u = 0; u < n; u++){
+ data = (kinet_instance_data*) inst[u]->impl;
+ free(inst[u]->impl);
+ inst[u]->impl = NULL;
+ }
+
+ LOG("Backend shut down");
+ return 0;
+}
diff --git a/backends/kinet.h b/backends/kinet.h
new file mode 100644
index 0000000..a93c576
--- /dev/null
+++ b/backends/kinet.h
@@ -0,0 +1,54 @@
+#include "midimonster.h"
+
+MM_PLUGIN_API int init();
+static int kinet_configure(char* option, char* value);
+static int kinet_configure_instance(instance* inst, char* option, char* value);
+static int kinet_instance(instance* inst);
+static channel* kinet_channel(instance* inst, char* spec, uint8_t flags);
+static int kinet_set(instance* inst, size_t num, channel** c, channel_value* v);
+static int kinet_handle(size_t num, managed_fd* fds);
+static int kinet_start(size_t n, instance** inst);
+static int kinet_shutdown(size_t n, instance** inst);
+
+#define KINET_PORT "6038"
+#define KINET_MAGIC htobe32(0x0401dc4a)
+
+enum {
+ kinet_op_dmx = 0x0101, //v1
+ kinet_op_out = 0x0108 //v2
+};
+
+//As a byproduct of the sparse documentation, a lot of these
+//fields are educated guesses.
+
+#pragma pack(push, 1)
+typedef struct /*_kinet_header*/ {
+ uint8_t magic[4]; //04 01 dc 4a
+ uint16_t version; //01 00
+ uint16_t op; //08 01
+ uint32_t seq; //00 00 00 00
+ uint8_t output_port; //00 //FIXME verify this / usage?
+ uint8_t pad; //00
+ uint16_t flags; //00 00
+} kinet_frame_hdr;
+
+typedef struct /*_kinet_dmx*/ {
+ uint32_t offset;
+ uint8_t universe;
+ uint8_t startcode; //FIXME test this
+ uint8_t data[512];
+} kinet_dmx;
+
+typedef struct /*_kinet_out*/ {
+ uint8_t port;
+ uint8_t padding;
+ uint16_t flags;
+ uint16_t length;
+ uint16_t code;
+ uint8_t data[512];
+} kinet_out;
+#pragma pack(pop)
+
+typedef struct /*_kinet_instance_data*/ {
+ size_t n;
+} kinet_instance_data;