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evdev: use new input system. detect hot-plugged devices with udev

This commit is contained in:
Flyinghead 2019-02-21 12:46:00 +01:00
parent 26e43ed9bd
commit 8e4e2c67f2
8 changed files with 217 additions and 780 deletions
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3
core/input/gamepad_device.cpp
View File

@ -199,8 +199,5 @@ void GamepadDevice::save_mapping()
{
if (input_mapper == NULL)
return;
std::string filename = make_mapping_filename();
if (!input_mapper->is_dirty())
return;
input_mapper->save(make_mapping_filename().c_str());
}

3
core/input/mapping.cpp
View File

@ -171,7 +171,8 @@ InputMapping *InputMapping::LoadMapping(const char *name)
bool InputMapping::save(const char *name)
{
if (!is_dirty())
loaded_mappings[name] = this;
if (!dirty)
return true;
std::string path = get_writable_config_path("/mappings/");

11
core/input/mapping.h
View File

@ -25,6 +25,14 @@
class InputMapping
{
public:
InputMapping() {}
InputMapping(const InputMapping& other) {
name = other.name;
buttons = other.buttons;
axes = other.axes;
axes_inverted = other.axes_inverted;
}
std::string name;
DreamcastKey get_button_id(u32 code)
@ -65,7 +73,7 @@ public:
static InputMapping *LoadMapping(const char *name);
protected:
bool dirty;
bool dirty = false;
private:
std::map<u32, DreamcastKey> buttons;
@ -88,6 +96,5 @@ public:
set_axis(DC_AXIS_RT, DC_AXIS_RT, false);
set_axis(DC_AXIS_X2, DC_AXIS_X2, false);
set_axis(DC_AXIS_Y2, DC_AXIS_Y2, false);
dirty = false;
}
};

889
core/linux-dist/evdev.cpp
View File

@ -1,721 +1,222 @@
#if defined(USE_EVDEV)
#include <unistd.h>
#include <fcntl.h>
#include <linux/input.h>
#include "linux-dist/evdev.h"
#include "linux-dist/main.h"
#include "hw/maple/maple_devs.h"
#include "cfg/cfg.h"
#include "cfg/ini.h"
#include "rend/gui.h"
#include "input/gamepad.h"
#include <vector>
#include <map>
#include <dlfcn.h>
#ifdef USE_UDEV
#include <libudev.h>
#endif
#include "evdev.h"
#include "evdev_gamepad.h"
#if defined(USE_EVDEV)
bool libevdev_tried = false;
bool libevdev_available = false;
typedef int (*libevdev_func1_t)(int, const char*);
typedef const char* (*libevdev_func2_t)(int, int);
libevdev_func1_t libevdev_event_code_from_name;
libevdev_func2_t libevdev_event_code_get_name;
#define EVDEV_DEVICE_STRING "/dev/input/event%d"
/* evdev input */
static EvdevController evdev_controllers[4] = {
{ -1, NULL },
{ -1, NULL },
{ -1, NULL },
{ -1, NULL }
};
static int maple_port = 0;
void dc_stop(void);
bool dc_loadstate(void);
bool dc_savestate(void);
void load_libevdev()
static void input_evdev_add_device(const char *devnode)
{
int fd = open(devnode, O_RDWR);
if (fd >= 0)
{
if (libevdev_tried)
return;
libevdev_tried = true;
void* lib_handle = dlopen("libevdev.so.2", RTLD_NOW);
if (!lib_handle) // libevdev.so.2 not found, fallback to libevdev.so
lib_handle = dlopen("libevdev.so", RTLD_NOW);
bool failed = false;
if (!lib_handle)
{
fprintf(stderr, "%s\n", dlerror());
failed = true;
}
else
{
libevdev_event_code_from_name = reinterpret_cast<libevdev_func1_t>(dlsym(lib_handle, "libevdev_event_code_from_name"));
const char* error1 = dlerror();
if (error1 != NULL)
{
fprintf(stderr, "%s\n", error1);
failed = true;
}
libevdev_event_code_get_name = reinterpret_cast<libevdev_func2_t>(dlsym(lib_handle, "libevdev_event_code_get_name"));
const char* error2 = dlerror();
if (error2 != NULL)
{
fprintf(stderr, "%s\n", error2);
failed = true;
}
}
if (failed)
{
puts("WARNING: libevdev is not available. You'll not be able to use button names instead of numeric codes in your controller mappings!\n");
return;
}
libevdev_available = true;
new EvdevGamepadDevice(maple_port, devnode, fd);
if (maple_port < 3)
maple_port++;
}
}
s8 EvdevAxisData::convert(s32 value)
static void input_evdev_remove_device(const char *devnode)
{
EvdevGamepadDevice *gamepad = EvdevGamepadDevice::GetControllerForDevnode(devnode);
if (gamepad != NULL)
{
return (((value - min) * 255) / range);
maple_port = gamepad->maple_port(); // Reuse the maple port for the next device connected
delete gamepad;
}
}
void EvdevAxisData::init(int fd, int code, bool inverted)
{
struct input_absinfo abs;
if(code < 0 || ioctl(fd, EVIOCGABS(code), &abs))
{
if(code >= 0)
{
perror("evdev ioctl");
}
this->range = 255;
this->min = 0;
return;
}
s32 min = abs.minimum;
s32 max = abs.maximum;
//printf("evdev: range of axis %d is from %d to %d\n", code, min, max);
if(inverted)
{
this->range = (min - max);
this->min = max;
}
else
{
this->range = (max - min);
this->min = min;
}
}
#ifdef USE_UDEV
static struct udev* udev;
static struct udev_monitor* udev_monitor;
void EvdevController::init()
{
this->data_x.init(this->fd, this->mapping->Axis_Analog_X, this->mapping->Axis_Analog_X_Inverted);
this->data_y.init(this->fd, this->mapping->Axis_Analog_Y, this->mapping->Axis_Analog_Y_Inverted);
this->data_trigger_left.init(this->fd, this->mapping->Axis_Trigger_Left, this->mapping->Axis_Trigger_Left_Inverted);
this->data_trigger_right.init(this->fd, this->mapping->Axis_Trigger_Right, this->mapping->Axis_Trigger_Right_Inverted);
this->rumble_effect_id = -1;
}
static bool is_joystick(struct udev_device *udev_device)
{
const char* devnode = udev_device_get_devnode(udev_device);
if (devnode == NULL || strncmp("/dev/input/event", devnode, 16))
return false;
MapleDeviceType GetMapleDeviceType(int value, int port)
{
switch (value)
{
case 0:
#if defined(_DEBUG) || defined(DEBUG)
printf("Maple Device: None\n");
#endif
return MDT_None;
case 1:
#if defined(_DEBUG) || defined(DEBUG)
printf("Maple Device: VMU\n");
#endif
return MDT_SegaVMU;
case 2:
#if defined(_DEBUG) || defined(DEBUG)
printf("Maple Device: Microphone\n");
#endif
return MDT_Microphone;
case 3:
#if defined(_DEBUG) || defined(DEBUG)
printf("Maple Device: PuruPuruPack\n");
#endif
return MDT_PurupuruPack;
default:
MapleDeviceType result = MDT_None;
string result_type = "None";
// Controller in port 0 (player1) defaults to VMU for Maple device, all other to None
if (port == 0)
{
result_type = "VMU";
result = MDT_SegaVMU;
}
printf("Unsupported configuration (%d) for Maple Device, using %s\n", value, result_type.c_str());
return result;
}
}
std::map<std::string, EvdevControllerMapping> loaded_mappings;
int load_keycode(ConfigFile* cfg, string section, string dc_key)
{
int code = -1;
string keycode = cfg->get(section, dc_key, "-1");
if (strstr(keycode.c_str(), "KEY_") != NULL ||
strstr(keycode.c_str(), "BTN_") != NULL ||
strstr(keycode.c_str(), "ABS_") != NULL)
{
if (libevdev_available)
{
int type = ((strstr(keycode.c_str(), "ABS_") != NULL) ? EV_ABS : EV_KEY);
code = libevdev_event_code_from_name(type, keycode.c_str());
}
if (code < 0)
{
printf("evdev: failed to find keycode for '%s'\n", keycode.c_str());
}
else
{
//printf("%s = %s (%d)\n", dc_key.c_str(), keycode.c_str(), code);
}
}
else
{
code = cfg->get_int(section, dc_key, -1);
if(code >= 0)
{
char* name = NULL;
if (libevdev_available)
{
int type = ((strstr(dc_key.c_str(), "axis_") != NULL) ? EV_ABS : EV_KEY);
name = (char*)libevdev_event_code_get_name(type, code);
}
if (name != NULL)
{
//printf("%s = %s (%d)\n", dc_key.c_str(), name, code);
}
else
{
//printf("%s = %d\n", dc_key.c_str(), code);
}
}
}
//if (code < 0)
// printf("WARNING: %s/%s not configured!\n", section.c_str(), dc_key.c_str());
return code;
}
EvdevControllerMapping load_mapping(FILE* fd)
{
ConfigFile mf;
mf.parse(fd);
EvdevControllerMapping mapping = {
mf.get("emulator", "mapping_name", "<Unknown>"),
load_keycode(&mf, "dreamcast", "btn_a"),
load_keycode(&mf, "dreamcast", "btn_b"),
load_keycode(&mf, "dreamcast", "btn_c"),
load_keycode(&mf, "dreamcast", "btn_d"),
load_keycode(&mf, "dreamcast", "btn_x"),
load_keycode(&mf, "dreamcast", "btn_y"),
load_keycode(&mf, "dreamcast", "btn_z"),
load_keycode(&mf, "dreamcast", "btn_start"),
load_keycode(&mf, "emulator", "btn_escape"),
load_keycode(&mf, "emulator", "btn_menu"),
load_keycode(&mf, "emulator", "btn_loadstate"),
load_keycode(&mf, "emulator", "btn_savestate"),
load_keycode(&mf, "dreamcast", "btn_dpad1_left"),
load_keycode(&mf, "dreamcast", "btn_dpad1_right"),
load_keycode(&mf, "dreamcast", "btn_dpad1_up"),
load_keycode(&mf, "dreamcast", "btn_dpad1_down"),
load_keycode(&mf, "dreamcast", "btn_dpad2_left"),
load_keycode(&mf, "dreamcast", "btn_dpad2_right"),
load_keycode(&mf, "dreamcast", "btn_dpad2_up"),
load_keycode(&mf, "dreamcast", "btn_dpad2_down"),
load_keycode(&mf, "compat", "btn_trigger_left"),
load_keycode(&mf, "compat", "btn_trigger_right"),
load_keycode(&mf, "compat", "axis_dpad1_x"),
load_keycode(&mf, "compat", "axis_dpad1_y"),
load_keycode(&mf, "compat", "axis_dpad2_x"),
load_keycode(&mf, "compat", "axis_dpad2_y"),
load_keycode(&mf, "dreamcast", "axis_x"),
load_keycode(&mf, "dreamcast", "axis_y"),
load_keycode(&mf, "dreamcast", "axis_trigger_left"),
load_keycode(&mf, "dreamcast", "axis_trigger_right"),
mf.get_bool("compat", "axis_x_inverted", false),
mf.get_bool("compat", "axis_y_inverted", false),
mf.get_bool("compat", "axis_trigger_left_inverted", false),
mf.get_bool("compat", "axis_trigger_right_inverted", false),
mf.get_int("dreamcast", "maple_device1", -1),
mf.get_int("dreamcast", "maple_device2", -1)
};
return mapping;
}
bool input_evdev_button_assigned(EvdevControllerMapping* mapping, int button)
{
// Don't check unassigned buttons
if (button == -1)
return false;
return ((mapping->Btn_A == button)
|| (mapping->Btn_B == button)
|| (mapping->Btn_C == button)
|| (mapping->Btn_D == button)
|| (mapping->Btn_X == button)
|| (mapping->Btn_Y == button)
|| (mapping->Btn_Z == button)
|| (mapping->Btn_Start == button)
|| (mapping->Btn_Escape == button)
|| (mapping->Btn_Menu == button)
|| (mapping->Btn_LoadState == button)
|| (mapping->Btn_SaveState == button)
|| (mapping->Btn_DPad_Left == button)
|| (mapping->Btn_DPad_Right == button)
|| (mapping->Btn_DPad_Up == button)
|| (mapping->Btn_DPad_Down == button)
|| (mapping->Btn_DPad2_Left == button)
|| (mapping->Btn_DPad2_Right == button)
|| (mapping->Btn_DPad2_Up == button)
|| (mapping->Btn_DPad2_Down == button)
|| (mapping->Btn_Trigger_Left == button)
|| (mapping->Btn_Trigger_Right == button));
}
bool input_evdev_button_duplicate_button(EvdevControllerMapping* mapping1, EvdevControllerMapping* mapping2)
{
return (input_evdev_button_assigned(mapping1, mapping2->Btn_A)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_B)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_C)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_D)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_X)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_Y)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_Z)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_Start)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_Escape)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_Menu)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_LoadState)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_SaveState)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_DPad_Left)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_DPad_Right)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_DPad_Up)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_DPad_Down)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_DPad2_Left)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_DPad2_Right)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_DPad2_Up)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_DPad2_Down)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_Trigger_Left)
|| input_evdev_button_assigned(mapping1, mapping2->Btn_Trigger_Right));
}
int input_evdev_init(EvdevController* controller, const char* device, const char* custom_mapping_fname = NULL)
{
load_libevdev();
char name[256] = "Unknown";
//printf("evdev: Trying to open device at '%s'\n", device);
int fd = open(device, O_RDWR);
if (fd >= 0)
{
fcntl(fd, F_SETFL, O_NONBLOCK);
if(ioctl(fd, EVIOCGNAME(sizeof(name)), name) < 0)
{
perror("evdev: ioctl");
return -2;
}
else
{
printf("evdev: Found '%s' at '%s'\n", name, device);
controller->fd = fd;
const char* mapping_fname;
if(custom_mapping_fname != NULL)
{
// custom mapping defined in config, use that
mapping_fname = custom_mapping_fname;
//printf("evdev: user defined custom mapping found (%s)\n", custom_mapping_fname);
}
else
{
#if defined(TARGET_PANDORA)
mapping_fname = "controller_pandora.cfg";
#elif defined(TARGET_GCW0)
mapping_fname = "controller_gcwz.cfg";
#else
// check if a config file name <device>.cfg exists in the /mappings/ directory
char* name_cfg = (char*)malloc(strlen(name)+4);
strcpy(name_cfg, name);
strcat(name_cfg, ".cfg");
size_t size_needed = snprintf(NULL, 0, EVDEV_MAPPING_PATH, name_cfg) + 1;
char* mapping_path = (char*)malloc(size_needed);
sprintf(mapping_path, EVDEV_MAPPING_PATH, name_cfg);
string dir = get_readonly_data_path(mapping_path);
free(mapping_path);
if (file_exists(dir)) {
//printf("evdev: found a named mapping for the device (%s)\n", name_cfg);
mapping_fname = name_cfg;
}
else {
free(name_cfg);
if (strcmp(name, "Microsoft X-Box 360 pad") == 0 ||
strcmp(name, "Xbox 360 Wireless Receiver") == 0 ||
strcmp(name, "Xbox 360 Wireless Receiver (XBOX)") == 0)
{
mapping_fname = "controller_xpad.cfg";
}
else if (strstr(name, "Xbox Gamepad (userspace driver)") != NULL)
{
mapping_fname = "controller_xboxdrv.cfg";
}
else if (strstr(name, "keyboard") != NULL ||
strstr(name, "Keyboard") != NULL)
{
mapping_fname = "keyboard.cfg";
}
else
{
mapping_fname = "controller_generic.cfg";
}
}
#endif
}
if(loaded_mappings.count(string(mapping_fname)) == 0)
{
FILE* mapping_fd = NULL;
if(mapping_fname[0] == '/')
{
// Absolute mapping
mapping_fd = fopen(mapping_fname, "r");
}
else
{
// Mapping from ~/.reicast/mappings/
size_t size_needed = snprintf(NULL, 0, EVDEV_MAPPING_PATH, mapping_fname) + 1;
char* mapping_path = (char*)malloc(size_needed);
sprintf(mapping_path, EVDEV_MAPPING_PATH, mapping_fname);
mapping_fd = fopen(get_readonly_data_path(mapping_path).c_str(), "r");
free(mapping_path);
}
if(mapping_fd != NULL)
{
//printf("evdev: reading mapping file: '%s'\n", mapping_fname);
loaded_mappings.insert(std::make_pair(string(mapping_fname), load_mapping(mapping_fd)));
fclose(mapping_fd);
}
else
{
printf("evdev: unable to open mapping file '%s'\n", mapping_fname);
perror("evdev");
return -3;
}
}
controller->mapping = &loaded_mappings.find(string(mapping_fname))->second;
printf("evdev: Using '%s' mapping\n", controller->mapping->name.c_str());
controller->init();
return 0;
}
}
else
{
perror(device);
return -1;
}
}
void input_evdev_init()
{
int evdev_device_id[4] = { -1, -1, -1, -1 };
size_t size_needed;
int port, i;
char* evdev_device;
for (port = 0; port < 4; port++)
{
size_needed = snprintf(NULL, 0, EVDEV_DEVICE_CONFIG_KEY, port+1) + 1;
char* evdev_config_key = (char*)malloc(size_needed);
sprintf(evdev_config_key, EVDEV_DEVICE_CONFIG_KEY, port+1);
evdev_device_id[port] = cfgLoadInt("input", evdev_config_key, EVDEV_DEFAULT_DEVICE_ID(port+1));
free(evdev_config_key);
// Check if the same device is already in use on another port
if (evdev_device_id[port] < 0)
{
printf("evdev: Controller %d disabled by config.\n", port + 1);
}
else
{
size_needed = snprintf(NULL, 0, EVDEV_DEVICE_STRING, evdev_device_id[port]) + 1;
evdev_device = (char*)malloc(size_needed);
sprintf(evdev_device, EVDEV_DEVICE_STRING, evdev_device_id[port]);
size_needed = snprintf(NULL, 0, EVDEV_MAPPING_CONFIG_KEY, port+1) + 1;
evdev_config_key = (char*)malloc(size_needed);
sprintf(evdev_config_key, EVDEV_MAPPING_CONFIG_KEY, port+1);
string tmp;
const char* mapping = (cfgExists("input", evdev_config_key) == 2 ? (tmp = cfgLoadStr("input", evdev_config_key, "")).c_str() : NULL);
free(evdev_config_key);
int err = input_evdev_init(&evdev_controllers[port], evdev_device, mapping);
free(evdev_device);
// If there was an error initializing the controller, don't proceed any further
if (err == 0)
{
for (i = 0; i < port; i++)
{
// If the controller could not be loaded, skip this one as it can't interfere
if (evdev_controllers[i].fd < 0)
continue;
if (evdev_device_id[port] == evdev_device_id[i])
{
// Multiple controllers with the same device, check for multiple button assignments
if (input_evdev_button_duplicate_button(evdev_controllers[i].mapping, evdev_controllers[port].mapping))
{
printf("WARNING: One or more button(s) of this device is also used in the configuration of input device %d (mapping: %s)\n", i,
evdev_controllers[i].mapping->name.c_str());
}
}
}
}
}
}
}
void input_evdev_close()
{
for (int port = 0; port < 4 ; port++)
{
if (evdev_controllers[port].fd >= 0)
{
close(evdev_controllers[port].fd);
}
}
}
bool input_evdev_handle(u32 port)
{
EvdevController* controller = &evdev_controllers[port];
#define SET_FLAG(field, mask, expr) field =((expr) ? (field & ~mask) : (field | mask))
if (controller->fd < 0 || controller->mapping == NULL)
{
return false;
}
input_event ie;
while(read(controller->fd, &ie, sizeof(ie)) == sizeof(ie))
{
switch(ie.type)
{
case EV_KEY:
if (ie.code == controller->mapping->Btn_A) {
SET_FLAG(kcode[port], DC_BTN_A, ie.value);
} else if (ie.code == controller->mapping->Btn_B) {
SET_FLAG(kcode[port], DC_BTN_B, ie.value);
} else if (ie.code == controller->mapping->Btn_C) {
SET_FLAG(kcode[port], DC_BTN_C, ie.value);
} else if (ie.code == controller->mapping->Btn_D) {
SET_FLAG(kcode[port], DC_BTN_D, ie.value);
} else if (ie.code == controller->mapping->Btn_X) {
SET_FLAG(kcode[port], DC_BTN_X, ie.value);
} else if (ie.code == controller->mapping->Btn_Y) {
SET_FLAG(kcode[port], DC_BTN_Y, ie.value);
} else if (ie.code == controller->mapping->Btn_Z) {
SET_FLAG(kcode[port], DC_BTN_Z, ie.value);
} else if (ie.code == controller->mapping->Btn_Start) {
SET_FLAG(kcode[port], DC_BTN_START, ie.value);
} else if (ie.code == controller->mapping->Btn_Escape) {
dc_stop();
} else if (ie.code == controller->mapping->Btn_Menu && port == 0) {
gui_open_settings();
} else if (ie.code == controller->mapping->Btn_LoadState) {
dc_loadstate();
} else if (ie.code == controller->mapping->Btn_SaveState) {
dc_savestate();
} else if (ie.code == controller->mapping->Btn_DPad_Left) {
SET_FLAG(kcode[port], DC_DPAD_LEFT, ie.value);
} else if (ie.code == controller->mapping->Btn_DPad_Right) {
SET_FLAG(kcode[port], DC_DPAD_RIGHT, ie.value);
} else if (ie.code == controller->mapping->Btn_DPad_Up) {
SET_FLAG(kcode[port], DC_DPAD_UP, ie.value);
} else if (ie.code == controller->mapping->Btn_DPad_Down) {
SET_FLAG(kcode[port], DC_DPAD_DOWN, ie.value);
} else if (ie.code == controller->mapping->Btn_DPad2_Left) {
SET_FLAG(kcode[port], DC_DPAD2_LEFT, ie.value);
} else if (ie.code == controller->mapping->Btn_DPad2_Right) {
SET_FLAG(kcode[port], DC_DPAD2_RIGHT, ie.value);
} else if (ie.code == controller->mapping->Btn_DPad2_Up) {
SET_FLAG(kcode[port], DC_DPAD2_UP, ie.value);
} else if (ie.code == controller->mapping->Btn_DPad2_Down) {
SET_FLAG(kcode[port], DC_DPAD2_DOWN, ie.value);
} else if (ie.code == controller->mapping->Btn_Trigger_Left) {
lt[port] = (ie.value ? 255 : 0);
} else if (ie.code == controller->mapping->Btn_Trigger_Right) {
rt[port] = (ie.value ? 255 : 0);
}
break;
case EV_ABS:
if (ie.code == controller->mapping->Axis_DPad_X)
{
switch(ie.value)
{
case -1:
SET_FLAG(kcode[port], DC_DPAD_LEFT, 1);
SET_FLAG(kcode[port], DC_DPAD_RIGHT, 0);
break;
case 0:
SET_FLAG(kcode[port], DC_DPAD_LEFT, 0);
SET_FLAG(kcode[port], DC_DPAD_RIGHT, 0);
break;
case 1:
SET_FLAG(kcode[port], DC_DPAD_LEFT, 0);
SET_FLAG(kcode[port], DC_DPAD_RIGHT, 1);
break;
}
}
else if (ie.code == controller->mapping->Axis_DPad_Y)
{
switch(ie.value)
{
case -1:
SET_FLAG(kcode[port], DC_DPAD_UP, 1);
SET_FLAG(kcode[port], DC_DPAD_DOWN, 0);
break;
case 0:
SET_FLAG(kcode[port], DC_DPAD_UP, 0);
SET_FLAG(kcode[port], DC_DPAD_DOWN, 0);
break;
case 1:
SET_FLAG(kcode[port], DC_DPAD_UP, 0);
SET_FLAG(kcode[port], DC_DPAD_DOWN, 1);
break;
}
}
else if (ie.code == controller->mapping->Axis_DPad2_X)
{
switch(ie.value)
{
case -1:
SET_FLAG(kcode[port], DC_DPAD2_LEFT, 1);
SET_FLAG(kcode[port], DC_DPAD2_RIGHT, 0);
break;
case 0:
SET_FLAG(kcode[port], DC_DPAD2_LEFT, 0);
SET_FLAG(kcode[port], DC_DPAD2_RIGHT, 0);
break;
case 1:
SET_FLAG(kcode[port], DC_DPAD2_LEFT, 0);
SET_FLAG(kcode[port], DC_DPAD2_RIGHT, 1);
break;
}
}
else if (ie.code == controller->mapping->Axis_DPad2_X)
{
switch(ie.value)
{
case -1:
SET_FLAG(kcode[port], DC_DPAD2_UP, 1);
SET_FLAG(kcode[port], DC_DPAD2_DOWN, 0);
break;
case 0:
SET_FLAG(kcode[port], DC_DPAD2_UP, 0);
SET_FLAG(kcode[port], DC_DPAD2_DOWN, 0);
break;
case 1:
SET_FLAG(kcode[port], DC_DPAD2_UP, 0);
SET_FLAG(kcode[port], DC_DPAD2_DOWN, 1);
break;
}
}
else if (ie.code == controller->mapping->Axis_Analog_X)
{
joyx[port] = (controller->data_x.convert(ie.value) + 128);
}
else if (ie.code == controller->mapping->Axis_Analog_Y)
{
joyy[port] = (controller->data_y.convert(ie.value) + 128);
}
else if (ie.code == controller->mapping->Axis_Trigger_Left)
{
lt[port] = controller->data_trigger_left.convert(ie.value);
}
else if (ie.code == controller->mapping->Axis_Trigger_Right)
{
rt[port] = controller->data_trigger_right.convert(ie.value);
}
break;
}
}
if (udev_device_get_property_value(udev_device, "ID_INPUT_JOYSTICK"))
return true;
}
if (udev_device_get_property_value(udev_device, "ID_INPUT_ACCELEROMETER")
|| udev_device_get_property_value(udev_device, "ID_INPUT_KEY")
|| udev_device_get_property_value(udev_device, "ID_INPUT_KEYBOARD")
|| udev_device_get_property_value(udev_device, "ID_INPUT_MOUSE")
|| udev_device_get_property_value(udev_device, "ID_INPUT_TABLET")
|| udev_device_get_property_value(udev_device, "ID_INPUT_TOUCHPAD")
|| udev_device_get_property_value(udev_device, "ID_INPUT_TOUCHSCREEN"))
return false;
void input_evdev_rumble(u32 port, u16 pow_strong, u16 pow_weak)
// On some platforms (older udev), ID_INPUT_ properties are not present, instead
// the system makes use of the ID_CLASS property to identify the device class
const char* id_class = udev_device_get_property_value(udev_device, "ID_CLASS");
if (id_class == NULL)
return false;
if (strstr(id_class, "joystick") != NULL)
return true;
if (strstr(id_class, "accelerometer") != NULL
|| strstr(id_class, "key") != NULL
|| strstr(id_class, "keyboard") != NULL
|| strstr(id_class, "mouse") != NULL
|| strstr(id_class, "tablet") != NULL
|| strstr(id_class, "touchpad") != NULL
|| strstr(id_class, "touchscreen") != NULL)
return false;
return false; // Not sure here. Could it still be a joystick after all?
}
static void get_udev_events()
{
if (udev == NULL)
{
EvdevController* controller = &evdev_controllers[port];
if (controller->fd < 0 || controller->rumble_effect_id == -2)
udev = udev_new();
// Create the monitor before doing the enumeration
udev_monitor = udev_monitor_new_from_netlink(udev, "udev");
if (udev_monitor == NULL)
{
// Either the controller is not used or previous rumble effect failed
printf("RUMBLE: %s\n", "Skipped!");
return;
}
printf("RUMBLE: %u / %u (%d)\n", pow_strong, pow_weak, controller->rumble_effect_id);
struct ff_effect effect;
effect.type = FF_RUMBLE;
effect.id = controller->rumble_effect_id;
effect.u.rumble.strong_magnitude = pow_strong;
effect.u.rumble.weak_magnitude = pow_weak;
effect.replay.length = 0;
effect.replay.delay = 0;
if (ioctl(controller->fd, EVIOCSFF, &effect) == -1)
{
perror("evdev: Force feedback error");
controller->rumble_effect_id = -2;
perror("Controller hot-plugging disabled");
}
else
{
controller->rumble_effect_id = effect.id;
// Let's play the effect
input_event play;
play.type = EV_FF;
play.code = effect.id;
play.value = 1;
if (write(controller->fd, (const void*) &play, sizeof(play)) == -1)
udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "input", NULL);
udev_monitor_enable_receiving(udev_monitor);
}
// Enumerate all joystick devices
struct udev_enumerate* enumerator = udev_enumerate_new(udev);
if (udev_enumerate_add_match_subsystem(enumerator, "input") != 0) {
perror("udev_enumerate_add_match_subsystem");
udev_monitor_unref(udev_monitor);
udev_unref(udev);
udev = NULL;
return;
}
if (udev_enumerate_scan_devices(enumerator) != 0) {
perror("udev_enumerate_scan_devices");
udev_monitor_unref(udev_monitor);
udev_enumerate_unref(enumerator);
udev_unref(udev);
udev = NULL;
return;
}
udev_list_entry* devices = udev_enumerate_get_list_entry(enumerator);
udev_list_entry* device;
udev_list_entry_foreach(device, devices) {
const char* syspath = udev_list_entry_get_name(device);
udev_device* udev_device = udev_device_new_from_syspath(udev, syspath);
if (udev_device != NULL)
{
perror("evdev: Force feedback error");
controller->rumble_effect_id = -2;
if (is_joystick(udev_device))
{
const char* devnode = udev_device_get_devnode(udev_device);
input_evdev_add_device(devnode);
}
udev_device_unref(udev_device);
}
}
udev_enumerate_unref(enumerator);
}
if (udev_monitor != NULL)
{
int monitor_fd = udev_monitor_get_fd(udev_monitor);
fd_set set;
FD_ZERO(&set);
FD_SET(monitor_fd, &set);
timeval timeout = {0, 0};
if (select(monitor_fd + 1, &set, NULL, NULL, &timeout) > 0 && FD_ISSET(monitor_fd, &set))
{
// event detected
udev_device* udev_device = udev_monitor_receive_device(udev_monitor);
if (udev_device != NULL)
{
if (is_joystick(udev_device))
{
const char* devnode = udev_device_get_devnode(udev_device);
const char* action = udev_device_get_action(udev_device);
if (action != NULL && devnode != NULL)
{
if (strstr(action, "add") != NULL)
{
//printf("udev monitor: device added %s\n", devnode);
input_evdev_add_device(devnode);
}
else if (strstr(action, "remove") != NULL)
{
//printf("udev monitor: device removed %s\n", devnode);
input_evdev_remove_device(devnode);
}
}
}
udev_device_unref(udev_device);
}
}
}
}
static void udev_term()
{
if (udev_monitor != NULL)
{
udev_monitor_unref(udev_monitor);
udev_monitor = NULL;
}
if (udev != NULL)
{
udev_unref(udev);
udev = NULL;
}
}
#endif // USE_UDEV
void input_evdev_init()
{
maple_port = 0;
#ifdef USE_UDEV
get_udev_events();
#else
char buf[32];
for (int port = 0; port < 100; port++)
{
sprintf(buf, EVDEV_DEVICE_STRING, port);
input_evdev_add_device(buf);
}
#endif
}
void input_evdev_close()
{
#ifdef USE_UDEV
udev_term();
#endif
EvdevGamepadDevice::CloseDevices();
}
// FIXME this shouldn't be done by port. Need something like: handle_events() then get_port(0), get_port(2), ...
bool input_evdev_handle(u32 port)
{
#ifdef USE_UDEV
get_udev_events();
#endif
EvdevGamepadDevice::PollDevices();
return true;
}
void input_evdev_rumble(u32 port, u16 pow_strong, u16 pow_weak)
{
EvdevGamepadDevice *dev = EvdevGamepadDevice::GetControllerForPort(port);
if (dev != NULL)
dev->Rumble(pow_strong, pow_weak);
}
#endif // USE_EVDEV

75
core/linux-dist/evdev.h
View File

@ -1,81 +1,6 @@
#pragma once
#include <linux/input.h>
#include "types.h"
struct EvdevControllerMapping
{
const string name;
const int Btn_A;
const int Btn_B;
const int Btn_C;
const int Btn_D;
const int Btn_X;
const int Btn_Y;
const int Btn_Z;
const int Btn_Start;
const int Btn_Escape;
const int Btn_Menu;
const int Btn_LoadState;
const int Btn_SaveState;
const int Btn_DPad_Left;
const int Btn_DPad_Right;
const int Btn_DPad_Up;
const int Btn_DPad_Down;
const int Btn_DPad2_Left;
const int Btn_DPad2_Right;
const int Btn_DPad2_Up;
const int Btn_DPad2_Down;
const int Btn_Trigger_Left;
const int Btn_Trigger_Right;
const int Axis_DPad_X;
const int Axis_DPad_Y;
const int Axis_DPad2_X;
const int Axis_DPad2_Y;
const int Axis_Analog_X;
const int Axis_Analog_Y;
const int Axis_Trigger_Left;
const int Axis_Trigger_Right;
const bool Axis_Analog_X_Inverted;
const bool Axis_Analog_Y_Inverted;
const bool Axis_Trigger_Left_Inverted;
const bool Axis_Trigger_Right_Inverted;
const int Maple_Device1;
const int Maple_Device2;
};
struct EvdevAxisData
{
s32 range; // smaller size than 32 bit might cause integer overflows
s32 min;
void init(int fd, int code, bool inverted);
s8 convert(int value);
};
struct EvdevController
{
int fd;
EvdevControllerMapping* mapping;
EvdevAxisData data_x;
EvdevAxisData data_y;
EvdevAxisData data_trigger_left;
EvdevAxisData data_trigger_right;
int rumble_effect_id;
void init();
};
#define EVDEV_DEVICE_CONFIG_KEY "evdev_device_id_%d"
#define EVDEV_MAPPING_CONFIG_KEY "evdev_mapping_%d"
#define EVDEV_DEVICE_STRING "/dev/input/event%d"
#define EVDEV_MAPPING_PATH "/mappings/%s"
#ifdef TARGET_PANDORA
#define EVDEV_DEFAULT_DEVICE_ID_1 4
#else
#define EVDEV_DEFAULT_DEVICE_ID_1 0
#endif
#define EVDEV_DEFAULT_DEVICE_ID(port) (port == 1 ? EVDEV_DEFAULT_DEVICE_ID_1 : -1)
extern void input_evdev_init();
extern void input_evdev_close();
extern bool input_evdev_handle(u32 port);

8
core/rend/gui.cpp
View File

@ -186,16 +186,16 @@ static void ImGui_Impl_NewFrame()
io.NavInputs[ImGuiNavInput_DpadUp] = (kcode[0] & DC_DPAD_UP) == 0;
io.NavInputs[ImGuiNavInput_DpadDown] = (kcode[0] & DC_DPAD_DOWN) == 0;
io.NavInputs[ImGuiNavInput_LStickLeft] = joyx[0] < 0 ? -(float)joyx[0] / 128 : 0.f;
if (io.NavInputs[ImGuiNavInput_LStickLeft] < 0.05f)
if (io.NavInputs[ImGuiNavInput_LStickLeft] < 0.1f)
io.NavInputs[ImGuiNavInput_LStickLeft] = 0.f;
io.NavInputs[ImGuiNavInput_LStickRight] = joyx[0] > 0 ? (float)joyx[0] / 128 : 0.f;
if (io.NavInputs[ImGuiNavInput_LStickRight] < 0.05f)
if (io.NavInputs[ImGuiNavInput_LStickRight] < 0.1f)
io.NavInputs[ImGuiNavInput_LStickRight] = 0.f;
io.NavInputs[ImGuiNavInput_LStickUp] = joyy[0] < 0 ? -(float)joyy[0] / 128.f : 0.f;
if (io.NavInputs[ImGuiNavInput_LStickUp] < 0.05f)
if (io.NavInputs[ImGuiNavInput_LStickUp] < 0.1f)
io.NavInputs[ImGuiNavInput_LStickUp] = 0.f;
io.NavInputs[ImGuiNavInput_LStickDown] = joyy[0] > 0 ? (float)joyy[0] / 128.f : 0.f;
if (io.NavInputs[ImGuiNavInput_LStickDown] < 0.05f)
if (io.NavInputs[ImGuiNavInput_LStickDown] < 0.1f)
io.NavInputs[ImGuiNavInput_LStickDown] = 0.f;
}

1
core/sdl/sdl_gamepad.h
View File

@ -1,6 +1,5 @@
#include "../input/gamepad_device.h"
#include "sdl.h"
#include "rend/gui.h"
class DefaultInputMapping : public InputMapping
{

7
shell/linux/Makefile
View File

@ -7,6 +7,7 @@ USE_OSS := 1
#USE_PULSEAUDIO := 1
#USE_LIBAO := 1
USE_EVDEV := 1
USE_UDEV := 1
PLATFORM_EXT := elf
CXX=${CC_PREFIX}g++
@ -27,6 +28,7 @@ CXXFLAGS :=
ifneq (, $(filter $(shell uname -s), FreeBSD OpenBSD NetBSD DragonFly))
CFLAGS += -DTARGET_BSD
undefine USE_UDEV
else
USE_ALSA := 1
# USE_JOYSTICK := 1
@ -253,6 +255,7 @@ endif
undefine USE_ALSA
undefine USE_OSS
undefine USE_EVDEV
undefine USE_UDEV
undefine FOR_LINUX
undefine WEBUI
NO_NIXPROF := 1
@ -326,6 +329,10 @@ endif
ifdef USE_EVDEV
CXXFLAGS += -D USE_EVDEV
ifdef USE_UDEV
CXXFLAGS += -D USE_UDEV
LIBS += -ludev
endif
endif
ifdef USE_JOYSTICK