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Diffstat (limited to 'backends/evdev.c')
-rw-r--r--backends/evdev.c81
1 files changed, 42 insertions, 39 deletions
diff --git a/backends/evdev.c b/backends/evdev.c
index d2eeba8..4725ef7 100644
--- a/backends/evdev.c
+++ b/backends/evdev.c
@@ -1,3 +1,5 @@
+#define BACKEND_NAME "evdev"
+
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
@@ -16,8 +18,6 @@
#include "midimonster.h"
#include "evdev.h"
-#define BACKEND_NAME "evdev"
-
static struct {
uint8_t detect;
} evdev_config = {
@@ -38,12 +38,12 @@ MM_PLUGIN_API int init(){
};
if(sizeof(evdev_channel_ident) != sizeof(uint64_t)){
- fprintf(stderr, "evdev channel identification union out of bounds\n");
+ LOG("Channel identification union out of bounds");
return 1;
}
if(mm_backend_register(evdev)){
- fprintf(stderr, "Failed to register evdev backend\n");
+ LOG("Failed to register backend");
return 1;
}
@@ -59,7 +59,7 @@ static int evdev_configure(char* option, char* value) {
return 0;
}
- fprintf(stderr, "Unknown configuration option %s for evdev backend\n", option);
+ LOGPF("Unknown backend configuration option %s", option);
return 1;
}
@@ -71,7 +71,7 @@ static instance* evdev_instance(){
evdev_instance_data* data = calloc(1, sizeof(evdev_instance_data));
if(!data){
- fprintf(stderr, "Failed to allocate memory\n");
+ LOG("Failed to allocate memory");
return NULL;
}
@@ -79,7 +79,7 @@ static instance* evdev_instance(){
#ifndef EVDEV_NO_UINPUT
data->output_proto = libevdev_new();
if(!data->output_proto){
- fprintf(stderr, "Failed to initialize libevdev output prototype device\n");
+ LOG("Failed to initialize libevdev output prototype device");
free(data);
return NULL;
}
@@ -91,25 +91,25 @@ static instance* evdev_instance(){
static int evdev_attach(instance* inst, evdev_instance_data* data, char* node){
if(data->input_fd >= 0){
- fprintf(stderr, "Instance %s already was assigned an input device\n", inst->name);
+ LOGPF("Instance %s already assigned an input device", inst->name);
return 1;
}
data->input_fd = open(node, O_RDONLY | O_NONBLOCK);
if(data->input_fd < 0){
- fprintf(stderr, "Failed to open evdev input device node %s: %s\n", node, strerror(errno));
+ LOGPF("Failed to open input device node %s: %s", node, strerror(errno));
return 1;
}
if(libevdev_new_from_fd(data->input_fd, &data->input_ev)){
- fprintf(stderr, "Failed to initialize libevdev for %s\n", node);
+ LOGPF("Failed to initialize libevdev for %s", node);
close(data->input_fd);
data->input_fd = -1;
return 1;
}
if(data->exclusive && libevdev_grab(data->input_ev, LIBEVDEV_GRAB)){
- fprintf(stderr, "Failed to obtain exclusive device access on %s\n", node);
+ LOGPF("Failed to obtain exclusive device access on %s", node);
}
return 0;
@@ -123,7 +123,7 @@ static char* evdev_find(char* name){
char device_name[UINPUT_MAX_NAME_SIZE], *result = NULL;
if(!nodes){
- fprintf(stderr, "Failed to query input device nodes in %s: %s", INPUT_NODES, strerror(errno));
+ LOGPF("Failed to query input device nodes in %s: %s", INPUT_NODES, strerror(errno));
return NULL;
}
@@ -133,12 +133,12 @@ static char* evdev_find(char* name){
fd = open(file_path, O_RDONLY);
if(fd < 0){
- fprintf(stderr, "Failed to access %s: %s\n", file_path, strerror(errno));
+ LOGPF("Failed to access %s: %s", file_path, strerror(errno));
continue;
}
if(ioctl(fd, EVIOCGNAME(sizeof(device_name)), device_name) < 0){
- fprintf(stderr, "Failed to read name for %s: %s\n", file_path, strerror(errno));
+ LOGPF("Failed to read name for %s: %s", file_path, strerror(errno));
close(fd);
continue;
}
@@ -146,7 +146,7 @@ static char* evdev_find(char* name){
close(fd);
if(!strncmp(device_name, name, strlen(name))){
- fprintf(stderr, "Matched name %s for %s: %s\n", device_name, name, file_path);
+ LOGPF("Matched name %s for %s: %s", device_name, name, file_path);
break;
}
}
@@ -178,7 +178,7 @@ static int evdev_configure_instance(instance* inst, char* option, char* value) {
else if(!strcmp(option, "input")){
next_token = evdev_find(value);
if(!next_token){
- fprintf(stderr, "Failed to find evdev input device with name %s for instance %s\n", value, inst->name);
+ LOGPF("Failed to match input device with name %s for instance %s", value, inst->name);
return 1;
}
if(evdev_attach(inst, data, next_token)){
@@ -190,7 +190,7 @@ static int evdev_configure_instance(instance* inst, char* option, char* value) {
}
else if(!strcmp(option, "exclusive")){
if(data->input_fd >= 0 && libevdev_grab(data->input_ev, LIBEVDEV_GRAB)){
- fprintf(stderr, "Failed to obtain exclusive device access on %s\n", inst->name);
+ LOGPF("Failed to obtain exclusive device access on %s", inst->name);
}
data->exclusive = 1;
return 0;
@@ -198,7 +198,7 @@ static int evdev_configure_instance(instance* inst, char* option, char* value) {
else if(!strncmp(option, "relaxis.", 8)){
data->relative_axis = realloc(data->relative_axis, (data->relative_axes + 1) * sizeof(evdev_relaxis_config));
if(!data->relative_axis){
- fprintf(stderr, "Failed to allocate memory\n");
+ LOG("Failed to allocate memory");
return 1;
}
data->relative_axis[data->relative_axes].inverted = 0;
@@ -208,9 +208,12 @@ static int evdev_configure_instance(instance* inst, char* option, char* value) {
data->relative_axis[data->relative_axes].max *= -1;
data->relative_axis[data->relative_axes].inverted = 1;
}
+ else if(data->relative_axis[data->relative_axes].max == 0){
+ LOGPF("Relative axis configuration for %s.%s has invalid range", inst->name, option + 8);
+ }
data->relative_axis[data->relative_axes].current = strtoul(next_token, NULL, 0);
if(data->relative_axis[data->relative_axes].code < 0){
- fprintf(stderr, "Failed to configure relative axis extents for %s.%s\n", inst->name, option + 8);
+ LOGPF("Failed to configure relative axis extents for %s.%s", inst->name, option + 8);
return 1;
}
data->relative_axes++;
@@ -239,13 +242,13 @@ static int evdev_configure_instance(instance* inst, char* option, char* value) {
abs_info.flat = strtol(next_token, &next_token, 0);
abs_info.resolution = strtol(next_token, &next_token, 0);
if(libevdev_enable_event_code(data->output_proto, EV_ABS, libevdev_event_code_from_name(EV_ABS, option + 5), &abs_info)){
- fprintf(stderr, "Failed to enable absolute axis %s for output\n", option + 5);
+ LOGPF("Failed to enable absolute axis %s.%s for output", inst->name, option + 5);
return 1;
}
return 0;
}
#endif
- fprintf(stderr, "Unknown instance configuration parameter %s for evdev instance %s\n", option, inst->name);
+ LOGPF("Unknown instance configuration parameter %s for instance %s", option, inst->name);
return 1;
}
@@ -259,14 +262,14 @@ static channel* evdev_channel(instance* inst, char* spec, uint8_t flags){
};
if(!separator){
- fprintf(stderr, "Invalid evdev channel specification %s\n", spec);
+ LOGPF("Invalid channel specification %s", spec);
return NULL;
}
*(separator++) = 0;
if(libevdev_event_type_from_name(spec) < 0){
- fprintf(stderr, "Invalid evdev type specification: %s", spec);
+ LOGPF("Invalid type specification: %s", spec);
return NULL;
}
ident.fields.type = libevdev_event_type_from_name(spec);
@@ -275,7 +278,7 @@ static channel* evdev_channel(instance* inst, char* spec, uint8_t flags){
ident.fields.code = libevdev_event_code_from_name(ident.fields.type, separator);
}
else{
- fprintf(stderr, "evdev Code name not recognized, using as number: %s\n", separator);
+ LOGPF("Code name not recognized, using as number: %s.%s", inst->name, separator);
ident.fields.code = strtoul(separator, NULL, 10);
}
@@ -285,7 +288,7 @@ static channel* evdev_channel(instance* inst, char* spec, uint8_t flags){
//enable the event on the device
//the previous check is necessary to not fail while enabling axes, which require additional information
if(libevdev_enable_event_code(data->output_proto, ident.fields.type, ident.fields.code, NULL)){
- fprintf(stderr, "Failed to enable output event %s.%s%s\n",
+ LOGPF("Failed to enable output event %s.%s%s",
libevdev_event_type_get_name(ident.fields.type),
libevdev_event_code_get_name(ident.fields.type, ident.fields.code),
(ident.fields.type == EV_ABS) ? ": To output absolute axes, specify their details in the configuration":"");
@@ -339,13 +342,13 @@ static int evdev_push_event(instance* inst, evdev_instance_data* data, struct in
}
if(mm_channel_event(chan, val)){
- fprintf(stderr, "Failed to push evdev channel event to core\n");
+ LOG("Failed to push channel event to core");
return 1;
}
}
if(evdev_config.detect){
- fprintf(stderr, "Incoming evdev data for channel %s.%s.%s\n", inst->name, libevdev_event_type_get_name(event.type), libevdev_event_code_get_name(event.type, event.code));
+ LOGPF("Incoming data for channel %s.%s.%s", inst->name, libevdev_event_type_get_name(event.type), libevdev_event_code_get_name(event.type, event.code));
}
return 0;
@@ -366,7 +369,7 @@ static int evdev_handle(size_t num, managed_fd* fds){
for(fd = 0; fd < num; fd++){
inst = (instance*) fds[fd].impl;
if(!inst){
- fprintf(stderr, "evdev backend signaled for unknown fd\n");
+ LOG("Signaled for unknown FD");
continue;
}
@@ -403,29 +406,29 @@ static int evdev_start(size_t n, instance** inst){
#ifndef EVDEV_NO_UINPUT
if(data->output_enabled){
if(libevdev_uinput_create_from_device(data->output_proto, LIBEVDEV_UINPUT_OPEN_MANAGED, &data->output_ev)){
- fprintf(stderr, "Failed to create evdev output device: %s\n", strerror(errno));
+ LOGPF("Failed to create output device: %s", strerror(errno));
return 1;
}
- fprintf(stderr, "Created device node %s for instance %s\n", libevdev_uinput_get_devnode(data->output_ev), inst[u]->name);
+ LOGPF("Created device node %s for instance %s", libevdev_uinput_get_devnode(data->output_ev), inst[u]->name);
}
#endif
inst[u]->ident = data->input_fd;
if(data->input_fd >= 0){
if(mm_manage_fd(data->input_fd, BACKEND_NAME, 1, inst[u])){
- fprintf(stderr, "Failed to register event input descriptor for instance %s\n", inst[u]->name);
+ LOGPF("Failed to register input descriptor for instance %s", inst[u]->name);
return 1;
}
fds++;
}
if(data->input_fd <= 0 && !data->output_ev){
- fprintf(stderr, "Instance %s has neither input nor output device set up\n", inst[u]->name);
+ LOGPF("Instance %s has neither input nor output device set up", inst[u]->name);
}
}
- fprintf(stderr, "evdev backend registered %zu descriptors to core\n", fds);
+ LOGPF("Registered %zu descriptors to core", fds);
return 0;
}
@@ -444,7 +447,7 @@ static int evdev_set(instance* inst, size_t num, channel** c, channel_value* v)
}
if(!data->output_enabled){
- fprintf(stderr, "Instance %s not enabled for output\n", inst->name);
+ LOGPF("Instance %s not enabled for output (%" PRIsize_t " channel events)", inst->name, num);
return 0;
}
@@ -480,20 +483,20 @@ static int evdev_set(instance* inst, size_t num, channel** c, channel_value* v)
}
if(libevdev_uinput_write_event(data->output_ev, ident.fields.type, ident.fields.code, value)){
- fprintf(stderr, "Failed to output event on instance %s\n", inst->name);
+ LOGPF("Failed to output event on instance %s", inst->name);
return 1;
}
}
//send syn event to publish all events
if(libevdev_uinput_write_event(data->output_ev, EV_SYN, SYN_REPORT, 0)){
- fprintf(stderr, "Failed to output sync event on instance %s\n", inst->name);
+ LOGPF("Failed to output sync event on instance %s", inst->name);
return 1;
}
return 0;
#else
- fprintf(stderr, "The evdev backend does not support output on this platform\n");
+ LOG("No output support on this platform");
return 1;
#endif
}
@@ -519,9 +522,9 @@ static int evdev_shutdown(size_t n, instance** inst){
#endif
data->relative_axes = 0;
free(data->relative_axis);
- free(data);
+ free(inst[u]->impl);
}
- fprintf(stderr, "evdev backend shut down\n");
+ LOG("Backend shut down");
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 10:12:53 +0000