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Added support for /dev/input/js* on Linux

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Added the hint SDL_HINT_LINUX_JOYSTICK_CLASSIC to control whether /dev/input/js* or /dev/input/event* are used as joystick devices

Added the hint SDL_HINT_JOYSTICK_DEVICE to allow the user to specify devices t
hat will be opened in addition to the normal joystick detection

Fixes https://github.com/libsdl-org/SDL/issues/1314
Fixes https://github.com/libsdl-org/SDL/issues/1727
Fixes https://github.com/libsdl-org/SDL/issues/1981
Closes https://github.com/libsdl-org/SDL/pull/4727
This commit is contained in:
Sam Lantinga
2021-11-10 20:02:25 -08:00
parent 65a50b2430
commit 1c78b08007
4 changed files with 213 additions and 60 deletions
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4
WhatsNew.txt
View File

@@ -5,6 +5,10 @@ This is a list of major changes in SDL's version history.
2.0.18: 2.0.18:
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
Linux:
* Added the hint SDL_HINT_LINUX_JOYSTICK_CLASSIC to control whether /dev/input/js* or /dev/input/event* are used as joystick devices
* Added the hint SDL_HINT_JOYSTICK_DEVICE to allow the user to specify devices that will be opened in addition to the normal joystick detection
Android: Android:
* Added support for audio output and capture using AAudio on Android 8.1 and newer * Added support for audio output and capture using AAudio on Android 8.1 and newer

18
include/SDL_hints.h
View File

@@ -816,6 +816,24 @@ extern "C" {
*/ */
#define SDL_HINT_KMSDRM_REQUIRE_DRM_MASTER "SDL_KMSDRM_REQUIRE_DRM_MASTER" #define SDL_HINT_KMSDRM_REQUIRE_DRM_MASTER "SDL_KMSDRM_REQUIRE_DRM_MASTER"
/**
* \brief A comma separated list of devices to open as joysticks
*
* This variable is currently only used by the Linux joystick driver.
*/
#define SDL_HINT_JOYSTICK_DEVICE "SDL_JOYSTICK_DEVICE"
/**
* \brief A variable controlling whether to use the classic /dev/input/js* joystick interface or the newer /dev/input/event* joystick interface on Linux
*
* This variable can be set to the following values:
* "0" - Use /dev/input/event*
* "1" - Use /dev/input/js*
*
* By default the /dev/input/event* interfaces are used
*/
#define SDL_HINT_LINUX_JOYSTICK_CLASSIC "SDL_LINUX_JOYSTICK_CLASSIC"
/** /**
* \brief A variable controlling whether joysticks on Linux adhere to their HID-defined deadzones or return unfiltered values. * \brief A variable controlling whether joysticks on Linux adhere to their HID-defined deadzones or return unfiltered values.
* *

200
src/joystick/linux/SDL_sysjoystick.c
View File

@@ -85,6 +85,7 @@ typedef enum
static EnumerationMethod enumeration_method = ENUMERATION_UNSET; static EnumerationMethod enumeration_method = ENUMERATION_UNSET;
static SDL_bool IsJoystickDeviceNode(const char *node);
static int MaybeAddDevice(const char *path); static int MaybeAddDevice(const char *path);
static int MaybeRemoveDevice(const char *path); static int MaybeRemoveDevice(const char *path);
@@ -105,6 +106,7 @@ typedef struct SDL_joylist_item
SDL_GamepadMapping *mapping; SDL_GamepadMapping *mapping;
} SDL_joylist_item; } SDL_joylist_item;
static SDL_bool SDL_classic_joysticks = SDL_TRUE;
static SDL_joylist_item *SDL_joylist = NULL; static SDL_joylist_item *SDL_joylist = NULL;
static SDL_joylist_item *SDL_joylist_tail = NULL; static SDL_joylist_item *SDL_joylist_tail = NULL;
static int numjoysticks = 0; static int numjoysticks = 0;
@@ -183,6 +185,10 @@ IsJoystick(int fd, char **name_return, SDL_JoystickGUID *guid)
char *name; char *name;
char product_string[128]; char product_string[128];
if (ioctl(fd, JSIOCGNAME(sizeof(product_string)), product_string) >= 0) {
inpid.vendor = 0;
inpid.product = 0;
} else {
/* When udev is enabled we only get joystick devices here, so there's no need to test them */ /* When udev is enabled we only get joystick devices here, so there's no need to test them */
if (enumeration_method != ENUMERATION_LIBUDEV && !GuessIsJoystick(fd)) { if (enumeration_method != ENUMERATION_LIBUDEV && !GuessIsJoystick(fd)) {
return 0; return 0;
@@ -195,6 +201,7 @@ IsJoystick(int fd, char **name_return, SDL_JoystickGUID *guid)
if (ioctl(fd, EVIOCGNAME(sizeof(product_string)), product_string) < 0) { if (ioctl(fd, EVIOCGNAME(sizeof(product_string)), product_string) < 0) {
return 0; return 0;
} }
}
name = SDL_CreateJoystickName(inpid.vendor, inpid.product, NULL, product_string); name = SDL_CreateJoystickName(inpid.vendor, inpid.product, NULL, product_string);
if (!name) { if (!name) {
@@ -213,7 +220,7 @@ IsJoystick(int fd, char **name_return, SDL_JoystickGUID *guid)
FixupDeviceInfoForMapping(fd, &inpid); FixupDeviceInfoForMapping(fd, &inpid);
#ifdef DEBUG_JOYSTICK #ifdef DEBUG_JOYSTICK
printf("Joystick: %s, bustype = %d, vendor = 0x%.4x, product = 0x%.4x, version = %d\n", name, inpid.bustype, inpid.vendor, inpid.product, inpid.version); SDL_Log("Joystick: %s, bustype = %d, vendor = 0x%.4x, product = 0x%.4x, version = %d\n", name, inpid.bustype, inpid.vendor, inpid.product, inpid.version);
#endif #endif
SDL_memset(guid->data, 0, sizeof(guid->data)); SDL_memset(guid->data, 0, sizeof(guid->data));
@@ -254,6 +261,9 @@ static void joystick_udev_callback(SDL_UDEV_deviceevent udev_type, int udev_clas
if (!(udev_class & SDL_UDEV_DEVICE_JOYSTICK)) { if (!(udev_class & SDL_UDEV_DEVICE_JOYSTICK)) {
return; return;
} }
if (SDL_classic_joysticks && !IsJoystickDeviceNode(devpath)) {
return;
}
MaybeAddDevice(devpath); MaybeAddDevice(devpath);
break; break;
@@ -308,7 +318,7 @@ MaybeAddDevice(const char *path)
} }
#ifdef DEBUG_INPUT_EVENTS #ifdef DEBUG_INPUT_EVENTS
printf("Checking %s\n", path); SDL_Log("Checking %s\n", path);
#endif #endif
isstick = IsJoystick(fd, &name, &guid); isstick = IsJoystick(fd, &name, &guid);
@@ -507,6 +517,20 @@ StrIsInteger(const char *string)
return 1; return 1;
} }
static SDL_bool
IsJoystickDeviceNode(const char *node)
{
const char *last_slash = SDL_strrchr(node, '/');
if (last_slash) {
node = last_slash + 1;
}
if (SDL_classic_joysticks) {
return (StrHasPrefix(node, "js") && StrIsInteger(node + 2));
} else {
return (StrHasPrefix(node, "event") && StrIsInteger(node + 5));
}
}
static void static void
LINUX_InotifyJoystickDetect(void) LINUX_InotifyJoystickDetect(void)
{ {
@@ -519,6 +543,7 @@ LINUX_InotifyJoystickDetect(void)
ssize_t bytes; ssize_t bytes;
size_t remain = 0; size_t remain = 0;
size_t len; size_t len;
char path[PATH_MAX];
bytes = read(inotify_fd, &buf, sizeof (buf)); bytes = read(inotify_fd, &buf, sizeof (buf));
@@ -528,10 +553,7 @@ LINUX_InotifyJoystickDetect(void)
while (remain > 0) { while (remain > 0) {
if (buf.event.len > 0) { if (buf.event.len > 0) {
if (StrHasPrefix(buf.event.name, "event") && if (IsJoystickDeviceNode(buf.event.name)) {
StrIsInteger(buf.event.name + SDL_strlen ("event"))) {
char path[PATH_MAX];
SDL_snprintf(path, SDL_arraysize(path), "/dev/input/%s", buf.event.name); SDL_snprintf(path, SDL_arraysize(path), "/dev/input/%s", buf.event.name);
if (buf.event.mask & (IN_CREATE | IN_MOVED_TO | IN_ATTRIB)) { if (buf.event.mask & (IN_CREATE | IN_MOVED_TO | IN_ATTRIB)) {
@@ -560,7 +582,7 @@ LINUX_InotifyJoystickDetect(void)
static int static int
filter_entries(const struct dirent *entry) filter_entries(const struct dirent *entry)
{ {
return (SDL_strlen(entry->d_name) > 5 && SDL_strncmp(entry->d_name, "event", 5) == 0); return IsJoystickDeviceNode(entry->d_name);
} }
static int static int
sort_entries(const struct dirent **a, const struct dirent **b) sort_entries(const struct dirent **a, const struct dirent **b)
@@ -627,7 +649,9 @@ LINUX_JoystickDetect(void)
static int static int
LINUX_JoystickInit(void) LINUX_JoystickInit(void)
{ {
const char *devices = SDL_GetHint("SDL_JOYSTICK_DEVICE"); const char *devices = SDL_GetHint(SDL_HINT_JOYSTICK_DEVICE);
SDL_classic_joysticks = SDL_GetHintBoolean(SDL_HINT_LINUX_JOYSTICK_CLASSIC, SDL_FALSE);
#if SDL_USE_LIBUDEV #if SDL_USE_LIBUDEV
if (enumeration_method == ENUMERATION_UNSET) { if (enumeration_method == ENUMERATION_UNSET) {
@@ -824,6 +848,7 @@ ConfigJoystick(SDL_Joystick *joystick, int fd)
unsigned long absbit[NBITS(ABS_MAX)] = { 0 }; unsigned long absbit[NBITS(ABS_MAX)] = { 0 };
unsigned long relbit[NBITS(REL_MAX)] = { 0 }; unsigned long relbit[NBITS(REL_MAX)] = { 0 };
unsigned long ffbit[NBITS(FF_MAX)] = { 0 }; unsigned long ffbit[NBITS(FF_MAX)] = { 0 };
Uint8 key_pam_size, abs_pam_size;
SDL_bool use_deadzones = SDL_GetHintBoolean(SDL_HINT_LINUX_JOYSTICK_DEADZONES, SDL_FALSE); SDL_bool use_deadzones = SDL_GetHintBoolean(SDL_HINT_LINUX_JOYSTICK_DEADZONES, SDL_FALSE);
/* See if this device uses the new unified event API */ /* See if this device uses the new unified event API */
@@ -835,7 +860,7 @@ ConfigJoystick(SDL_Joystick *joystick, int fd)
for (i = BTN_JOYSTICK; i < KEY_MAX; ++i) { for (i = BTN_JOYSTICK; i < KEY_MAX; ++i) {
if (test_bit(i, keybit)) { if (test_bit(i, keybit)) {
#ifdef DEBUG_INPUT_EVENTS #ifdef DEBUG_INPUT_EVENTS
printf("Joystick has button: 0x%x\n", i); SDL_Log("Joystick has button: 0x%x\n", i);
#endif #endif
joystick->hwdata->key_map[i] = joystick->nbuttons; joystick->hwdata->key_map[i] = joystick->nbuttons;
joystick->hwdata->has_key[i] = SDL_TRUE; joystick->hwdata->has_key[i] = SDL_TRUE;
@@ -845,7 +870,7 @@ ConfigJoystick(SDL_Joystick *joystick, int fd)
for (i = 0; i < BTN_JOYSTICK; ++i) { for (i = 0; i < BTN_JOYSTICK; ++i) {
if (test_bit(i, keybit)) { if (test_bit(i, keybit)) {
#ifdef DEBUG_INPUT_EVENTS #ifdef DEBUG_INPUT_EVENTS
printf("Joystick has button: 0x%x\n", i); SDL_Log("Joystick has button: 0x%x\n", i);
#endif #endif
joystick->hwdata->key_map[i] = joystick->nbuttons; joystick->hwdata->key_map[i] = joystick->nbuttons;
joystick->hwdata->has_key[i] = SDL_TRUE; joystick->hwdata->has_key[i] = SDL_TRUE;
@@ -866,8 +891,8 @@ ConfigJoystick(SDL_Joystick *joystick, int fd)
continue; continue;
} }
#ifdef DEBUG_INPUT_EVENTS #ifdef DEBUG_INPUT_EVENTS
printf("Joystick has absolute axis: 0x%.2x\n", i); SDL_Log("Joystick has absolute axis: 0x%.2x\n", i);
printf("Values = { %d, %d, %d, %d, %d }\n", SDL_Log("Values = { %d, %d, %d, %d, %d }\n",
absinfo.value, absinfo.minimum, absinfo.maximum, absinfo.value, absinfo.minimum, absinfo.maximum,
absinfo.fuzz, absinfo.flat); absinfo.fuzz, absinfo.flat);
#endif /* DEBUG_INPUT_EVENTS */ #endif /* DEBUG_INPUT_EVENTS */
@@ -906,8 +931,8 @@ ConfigJoystick(SDL_Joystick *joystick, int fd)
continue; continue;
} }
#ifdef DEBUG_INPUT_EVENTS #ifdef DEBUG_INPUT_EVENTS
printf("Joystick has hat %d\n", hat_index); SDL_Log("Joystick has hat %d\n", hat_index);
printf("Values = { %d, %d, %d, %d, %d }\n", SDL_Log("Values = { %d, %d, %d, %d, %d }\n",
absinfo.value, absinfo.minimum, absinfo.maximum, absinfo.value, absinfo.minimum, absinfo.maximum,
absinfo.fuzz, absinfo.flat); absinfo.fuzz, absinfo.flat);
#endif /* DEBUG_INPUT_EVENTS */ #endif /* DEBUG_INPUT_EVENTS */
@@ -919,6 +944,63 @@ ConfigJoystick(SDL_Joystick *joystick, int fd)
++joystick->nballs; ++joystick->nballs;
} }
} else if ((ioctl(fd, JSIOCGBUTTONS, &key_pam_size, sizeof(key_pam_size)) >= 0) &&
(ioctl(fd, JSIOCGAXES, &abs_pam_size, sizeof(abs_pam_size)) >= 0)) {
size_t len;
joystick->hwdata->classic = SDL_TRUE;
len = (KEY_MAX - BTN_MISC + 1) * sizeof(*joystick->hwdata->key_pam);
joystick->hwdata->key_pam = (Uint16 *)SDL_calloc(1, len);
if (joystick->hwdata->key_pam) {
if (ioctl(fd, JSIOCGBTNMAP, joystick->hwdata->key_pam, len) < 0) {
SDL_free(joystick->hwdata->key_pam);
joystick->hwdata->key_pam = NULL;
key_pam_size = 0;
}
}
for (i = 0; i < key_pam_size; ++i) {
Uint16 code = joystick->hwdata->key_pam[i];
#ifdef DEBUG_INPUT_EVENTS
SDL_Log("Joystick has button: 0x%x\n", code);
#endif
joystick->hwdata->key_map[code] = joystick->nbuttons;
joystick->hwdata->has_key[code] = SDL_TRUE;
++joystick->nbuttons;
}
len = ABS_CNT * sizeof(*joystick->hwdata->abs_pam);
joystick->hwdata->abs_pam = (Uint8 *)SDL_calloc(1, len);
if (joystick->hwdata->abs_pam) {
if (ioctl(fd, JSIOCGAXMAP, joystick->hwdata->abs_pam, len) < 0) {
SDL_free(joystick->hwdata->abs_pam);
joystick->hwdata->abs_pam = NULL;
abs_pam_size = 0;
}
}
for (i = 0; i < abs_pam_size; ++i) {
Uint8 code = joystick->hwdata->abs_pam[i];
if (code >= ABS_HAT0X && code <= ABS_HAT3Y) {
int hat_index = (code - ABS_HAT0X) / 2;
if (!joystick->hwdata->has_hat[hat_index]) {
#ifdef DEBUG_INPUT_EVENTS
SDL_Log("Joystick has hat %d\n", hat_index);
#endif
joystick->hwdata->hats_indices[hat_index] = joystick->nhats++;
joystick->hwdata->has_hat[hat_index] = SDL_TRUE;
}
} else {
#ifdef DEBUG_INPUT_EVENTS
SDL_Log("Joystick has absolute axis: 0x%.2x\n", code);
#endif
joystick->hwdata->abs_map[code] = joystick->naxes;
joystick->hwdata->has_abs[code] = SDL_TRUE;
++joystick->naxes;
}
}
}
/* Allocate data to keep track of these thingamajigs */ /* Allocate data to keep track of these thingamajigs */
if (joystick->nhats > 0) { if (joystick->nhats > 0) {
if (allocate_hatdata(joystick) < 0) { if (allocate_hatdata(joystick) < 0) {
@@ -930,7 +1012,6 @@ ConfigJoystick(SDL_Joystick *joystick, int fd)
joystick->nballs = 0; joystick->nballs = 0;
} }
} }
}
if (ioctl(fd, EVIOCGBIT(EV_FF, sizeof(ffbit)), ffbit) >= 0) { if (ioctl(fd, EVIOCGBIT(EV_FF, sizeof(ffbit)), ffbit) >= 0) {
if (test_bit(FF_RUMBLE, ffbit)) { if (test_bit(FF_RUMBLE, ffbit)) {
@@ -955,6 +1036,7 @@ PrepareJoystickHwdata(SDL_Joystick *joystick, SDL_joylist_item *item)
joystick->hwdata->guid = item->guid; joystick->hwdata->guid = item->guid;
joystick->hwdata->effect.id = -1; joystick->hwdata->effect.id = -1;
joystick->hwdata->m_bSteamController = item->m_bSteamController; joystick->hwdata->m_bSteamController = item->m_bSteamController;
SDL_memset(joystick->hwdata->key_map, 0xFF, sizeof(joystick->hwdata->key_map));
SDL_memset(joystick->hwdata->abs_map, 0xFF, sizeof(joystick->hwdata->abs_map)); SDL_memset(joystick->hwdata->abs_map, 0xFF, sizeof(joystick->hwdata->abs_map));
if (item->m_bSteamController) { if (item->m_bSteamController) {
@@ -1098,7 +1180,7 @@ LINUX_JoystickSetSensorsEnabled(SDL_Joystick *joystick, SDL_bool enabled)
return SDL_Unsupported(); return SDL_Unsupported();
} }
static SDL_INLINE void static void
HandleHat(SDL_Joystick *stick, Uint8 hat, int axis, int value) HandleHat(SDL_Joystick *stick, Uint8 hat, int axis, int value)
{ {
struct hwdata_hat *the_hat; struct hwdata_hat *the_hat;
@@ -1123,14 +1205,14 @@ HandleHat(SDL_Joystick *stick, Uint8 hat, int axis, int value)
} }
} }
static SDL_INLINE void static void
HandleBall(SDL_Joystick *stick, Uint8 ball, int axis, int value) HandleBall(SDL_Joystick *stick, Uint8 ball, int axis, int value)
{ {
stick->hwdata->balls[ball].axis[axis] += value; stick->hwdata->balls[ball].axis[axis] += value;
} }
static SDL_INLINE int static int
AxisCorrect(SDL_Joystick *joystick, int which, int value) AxisCorrect(SDL_Joystick *joystick, int which, int value)
{ {
struct axis_correct *correct; struct axis_correct *correct;
@@ -1164,7 +1246,7 @@ AxisCorrect(SDL_Joystick *joystick, int which, int value)
return value; return value;
} }
static SDL_INLINE void static void
PollAllValues(SDL_Joystick *joystick) PollAllValues(SDL_Joystick *joystick)
{ {
struct input_absinfo absinfo; struct input_absinfo absinfo;
@@ -1182,7 +1264,7 @@ PollAllValues(SDL_Joystick *joystick)
absinfo.value = AxisCorrect(joystick, i, absinfo.value); absinfo.value = AxisCorrect(joystick, i, absinfo.value);
#ifdef DEBUG_INPUT_EVENTS #ifdef DEBUG_INPUT_EVENTS
printf("Joystick : Re-read Axis %d (%d) val= %d\n", SDL_Log("Joystick : Re-read Axis %d (%d) val= %d\n",
joystick->hwdata->abs_map[i], i, absinfo.value); joystick->hwdata->abs_map[i], i, absinfo.value);
#endif #endif
SDL_PrivateJoystickAxis(joystick, SDL_PrivateJoystickAxis(joystick,
@@ -1212,7 +1294,7 @@ PollAllValues(SDL_Joystick *joystick)
if (joystick->hwdata->has_key[i]) { if (joystick->hwdata->has_key[i]) {
const Uint8 value = test_bit(i, keyinfo) ? SDL_PRESSED : SDL_RELEASED; const Uint8 value = test_bit(i, keyinfo) ? SDL_PRESSED : SDL_RELEASED;
#ifdef DEBUG_INPUT_EVENTS #ifdef DEBUG_INPUT_EVENTS
printf("Joystick : Re-read Button %d (%d) val= %d\n", SDL_Log("Joystick : Re-read Button %d (%d) val= %d\n",
joystick->hwdata->key_map[i], i, value); joystick->hwdata->key_map[i], i, value);
#endif #endif
SDL_PrivateJoystickButton(joystick, SDL_PrivateJoystickButton(joystick,
@@ -1224,12 +1306,11 @@ PollAllValues(SDL_Joystick *joystick)
/* Joyballs are relative input, so there's no poll state. Events only! */ /* Joyballs are relative input, so there's no poll state. Events only! */
} }
static SDL_INLINE void static void
HandleInputEvents(SDL_Joystick *joystick) HandleInputEvents(SDL_Joystick *joystick)
{ {
struct input_event events[32]; struct input_event events[32];
int i, len; int i, len, code;
int code;
if (joystick->hwdata->fresh) { if (joystick->hwdata->fresh) {
PollAllValues(joystick); PollAllValues(joystick);
@@ -1268,13 +1349,10 @@ HandleInputEvents(SDL_Joystick *joystick)
HandleHat(joystick, joystick->hwdata->hats_indices[code / 2], code % 2, events[i].value); HandleHat(joystick, joystick->hwdata->hats_indices[code / 2], code % 2, events[i].value);
break; break;
default: default:
if (joystick->hwdata->abs_map[code] != 0xFF) { events[i].value = AxisCorrect(joystick, code, events[i].value);
events[i].value =
AxisCorrect(joystick, code, events[i].value);
SDL_PrivateJoystickAxis(joystick, SDL_PrivateJoystickAxis(joystick,
joystick->hwdata->abs_map[code], joystick->hwdata->abs_map[code],
events[i].value); events[i].value);
}
break; break;
} }
break; break;
@@ -1293,7 +1371,7 @@ HandleInputEvents(SDL_Joystick *joystick)
switch (code) { switch (code) {
case SYN_DROPPED : case SYN_DROPPED :
#ifdef DEBUG_INPUT_EVENTS #ifdef DEBUG_INPUT_EVENTS
printf("Event SYN_DROPPED detected\n"); SDL_Log("Event SYN_DROPPED detected\n");
#endif #endif
joystick->hwdata->recovering_from_dropped = SDL_TRUE; joystick->hwdata->recovering_from_dropped = SDL_TRUE;
break; break;
@@ -1318,6 +1396,48 @@ HandleInputEvents(SDL_Joystick *joystick)
} }
} }
static void
HandleClassicEvents(SDL_Joystick *joystick)
{
struct js_event events[32];
int i, len, code;
joystick->hwdata->fresh = SDL_FALSE;
while ((len = read(joystick->hwdata->fd, events, (sizeof events))) > 0) {
len /= sizeof(events[0]);
for (i = 0; i < len; ++i) {
switch (events[i].type) {
case JS_EVENT_BUTTON:
code = joystick->hwdata->key_pam[events[i].number];
SDL_PrivateJoystickButton(joystick,
joystick->hwdata->key_map[code],
events[i].value);
break;
case JS_EVENT_AXIS:
code = joystick->hwdata->abs_pam[events[i].number];
switch (code) {
case ABS_HAT0X:
case ABS_HAT0Y:
case ABS_HAT1X:
case ABS_HAT1Y:
case ABS_HAT2X:
case ABS_HAT2Y:
case ABS_HAT3X:
case ABS_HAT3Y:
code -= ABS_HAT0X;
HandleHat(joystick, joystick->hwdata->hats_indices[code / 2], code % 2, events[i].value);
break;
default:
SDL_PrivateJoystickAxis(joystick,
joystick->hwdata->abs_map[code],
events[i].value);
break;
}
}
}
}
}
static void static void
LINUX_JoystickUpdate(SDL_Joystick *joystick) LINUX_JoystickUpdate(SDL_Joystick *joystick)
{ {
@@ -1328,7 +1448,11 @@ LINUX_JoystickUpdate(SDL_Joystick *joystick)
return; return;
} }
if (joystick->hwdata->classic) {
HandleClassicEvents(joystick);
} else {
HandleInputEvents(joystick); HandleInputEvents(joystick);
}
/* Deliver ball motion updates */ /* Deliver ball motion updates */
for (i = 0; i < joystick->nballs; ++i) { for (i = 0; i < joystick->nballs; ++i) {
@@ -1359,6 +1483,8 @@ LINUX_JoystickClose(SDL_Joystick *joystick)
if (joystick->hwdata->item) { if (joystick->hwdata->item) {
joystick->hwdata->item->hwdata = NULL; joystick->hwdata->item->hwdata = NULL;
} }
SDL_free(joystick->hwdata->key_pam);
SDL_free(joystick->hwdata->abs_pam);
SDL_free(joystick->hwdata->hats); SDL_free(joystick->hwdata->hats);
SDL_free(joystick->hwdata->balls); SDL_free(joystick->hwdata->balls);
SDL_free(joystick->hwdata->fname); SDL_free(joystick->hwdata->fname);
@@ -1525,20 +1651,20 @@ LINUX_JoystickGetGamepadMapping(int device_index, SDL_GamepadMapping *out)
out->lefttrigger.target = hat | 0x4; out->lefttrigger.target = hat | 0x4;
out->righttrigger.target = hat | 0x2; out->righttrigger.target = hat | 0x2;
} else { } else {
if (joystick->hwdata->has_key[BTN_TL2]) { if (joystick->hwdata->has_abs[ABS_Z]) {
out->lefttrigger.kind = EMappingKind_Button;
out->lefttrigger.target = joystick->hwdata->key_map[BTN_TL2];
} else if (joystick->hwdata->has_abs[ABS_Z]) {
out->lefttrigger.kind = EMappingKind_Axis; out->lefttrigger.kind = EMappingKind_Axis;
out->lefttrigger.target = joystick->hwdata->abs_map[ABS_Z]; out->lefttrigger.target = joystick->hwdata->abs_map[ABS_Z];
} else if (joystick->hwdata->has_key[BTN_TL2]) {
out->lefttrigger.kind = EMappingKind_Button;
out->lefttrigger.target = joystick->hwdata->key_map[BTN_TL2];
} }
if (joystick->hwdata->has_key[BTN_TR2]) { if (joystick->hwdata->has_abs[ABS_RZ]) {
out->righttrigger.kind = EMappingKind_Button;
out->righttrigger.target = joystick->hwdata->key_map[BTN_TR2];
} else if (joystick->hwdata->has_abs[ABS_RZ]) {
out->righttrigger.kind = EMappingKind_Axis; out->righttrigger.kind = EMappingKind_Axis;
out->righttrigger.target = joystick->hwdata->abs_map[ABS_RZ]; out->righttrigger.target = joystick->hwdata->abs_map[ABS_RZ];
} else if (joystick->hwdata->has_key[BTN_TR2]) {
out->righttrigger.kind = EMappingKind_Button;
out->righttrigger.target = joystick->hwdata->key_map[BTN_TR2];
} }
} }

5
src/joystick/linux/SDL_sysjoystick_c.h
View File

@@ -56,6 +56,11 @@ struct joystick_hwdata
SDL_bool has_key[KEY_MAX]; SDL_bool has_key[KEY_MAX];
SDL_bool has_abs[ABS_MAX]; SDL_bool has_abs[ABS_MAX];
/* Support for the classic joystick interface */
SDL_bool classic;
Uint16 *key_pam;
Uint8 *abs_pam;
struct axis_correct struct axis_correct
{ {
SDL_bool use_deadzones; SDL_bool use_deadzones;