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https://github.com/libretro/RetroArch.git
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(udev_joypad.c) Get rid of some forward declarations
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twinaphex
parent
660641f328
commit
17a040e002
@ -159,116 +159,14 @@ static bool udev_hotplug_available(void)
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return (poll(&fds, 1, 0) == 1) && (fds.revents & POLLIN);
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}
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static void udev_check_device(struct udev_device *dev, const char *path, bool hotplugged);
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static void udev_joypad_remove_device(const char *path);
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static void udev_joypad_handle_hotplug(void)
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{
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struct udev_device *dev = udev_monitor_receive_device(g_udev_mon);
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if (!dev)
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return;
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const char *val = udev_device_get_property_value(dev, "ID_INPUT_JOYSTICK");
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const char *action = udev_device_get_action(dev);
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const char *devnode = udev_device_get_devnode(dev);
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if (!val || strcmp(val, "1") || !devnode)
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goto end;
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if (!strcmp(action, "add"))
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{
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RARCH_LOG("[udev]: Hotplug add: %s.\n", devnode);
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udev_check_device(dev, devnode, true);
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}
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else if (!strcmp(action, "remove"))
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{
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RARCH_LOG("[udev]: Hotplug remove: %s.\n", devnode);
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udev_joypad_remove_device(devnode);
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}
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end:
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udev_device_unref(dev);
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}
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static bool udev_set_rumble(unsigned i, enum retro_rumble_effect effect, uint16_t strength)
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{
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int old_effect;
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uint16_t old_strength;
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struct udev_joypad *pad = (struct udev_joypad*)&udev_pads[i];
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if (pad->fd < 0)
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return false;
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if (pad->num_effects < 2)
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return false;
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old_strength = pad->strength[effect];
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if (old_strength == strength)
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return true;
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old_effect = pad->has_set_ff[effect] ? pad->effects[effect] : -1;
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if (strength && strength != pad->configured_strength[effect])
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{
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/* Create new or update old playing state. */
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struct ff_effect e;
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memset(&e, 0, sizeof(e));
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e.type = FF_RUMBLE;
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e.id = old_effect;
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switch (effect)
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{
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case RETRO_RUMBLE_STRONG:
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e.u.rumble.strong_magnitude = strength;
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break;
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case RETRO_RUMBLE_WEAK:
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e.u.rumble.weak_magnitude = strength;
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break;
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default:
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return false;
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}
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if (ioctl(pad->fd, EVIOCSFF, &e) < 0)
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{
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RARCH_ERR("Failed to set rumble effect on pad #%u.\n", i);
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return false;
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}
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pad->effects[effect] = e.id;
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pad->has_set_ff[effect] = true;
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pad->configured_strength[effect] = strength;
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}
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pad->strength[effect] = strength;
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/* It seems that we can update strength with EVIOCSFF atomically. */
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if ((!!strength) != (!!old_strength))
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{
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struct input_event play = {{0}};
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play.type = EV_FF;
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play.code = pad->effects[effect];
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play.value = !!strength;
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if (write(pad->fd, &play, sizeof(play)) < (ssize_t)sizeof(play))
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{
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RARCH_ERR("[udev]: Failed to play rumble effect #%u on pad #%u.\n",
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effect, i);
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return false;
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}
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}
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return true;
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}
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static void udev_joypad_poll(void)
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static int udev_find_vacant_pad(void)
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{
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unsigned i;
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while (udev_hotplug_available())
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udev_joypad_handle_hotplug();
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for (i = 0; i < MAX_USERS; i++)
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udev_poll_pad(&udev_pads[i], i);
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if (udev_pads[i].fd < 0)
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return i;
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return -1;
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}
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#define test_bit(nr, addr) \
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@ -301,30 +199,6 @@ error:
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return -1;
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}
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static int udev_find_vacant_pad(void)
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{
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unsigned i;
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for (i = 0; i < MAX_USERS; i++)
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if (udev_pads[i].fd < 0)
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return i;
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return -1;
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}
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static void udev_free_pad(unsigned pad, bool hotplug)
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{
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if (udev_pads[pad].fd >= 0)
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close(udev_pads[pad].fd);
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free(udev_pads[pad].path);
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if (udev_pads[pad].ident)
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*udev_pads[pad].ident = '\0';
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memset(&udev_pads[pad], 0, sizeof(udev_pads[pad]));
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udev_pads[pad].fd = -1;
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}
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static bool udev_add_pad(struct udev_device *dev, unsigned p, int fd, const char *path)
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{
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int i;
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@ -470,6 +344,20 @@ static void udev_check_device(struct udev_device *dev, const char *path, bool ho
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}
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}
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static void udev_free_pad(unsigned pad, bool hotplug)
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{
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if (udev_pads[pad].fd >= 0)
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close(udev_pads[pad].fd);
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free(udev_pads[pad].path);
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if (udev_pads[pad].ident)
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*udev_pads[pad].ident = '\0';
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memset(&udev_pads[pad], 0, sizeof(udev_pads[pad]));
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udev_pads[pad].fd = -1;
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}
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static void udev_joypad_remove_device(const char *path)
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{
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unsigned i;
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@ -503,6 +391,115 @@ static void udev_joypad_destroy(void)
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g_udev = NULL;
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}
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static void udev_joypad_handle_hotplug(void)
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{
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struct udev_device *dev = udev_monitor_receive_device(g_udev_mon);
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if (!dev)
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return;
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const char *val = udev_device_get_property_value(dev, "ID_INPUT_JOYSTICK");
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const char *action = udev_device_get_action(dev);
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const char *devnode = udev_device_get_devnode(dev);
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if (!val || strcmp(val, "1") || !devnode)
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goto end;
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if (!strcmp(action, "add"))
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{
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RARCH_LOG("[udev]: Hotplug add: %s.\n", devnode);
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udev_check_device(dev, devnode, true);
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}
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else if (!strcmp(action, "remove"))
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{
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RARCH_LOG("[udev]: Hotplug remove: %s.\n", devnode);
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udev_joypad_remove_device(devnode);
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}
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end:
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udev_device_unref(dev);
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}
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static bool udev_set_rumble(unsigned i, enum retro_rumble_effect effect, uint16_t strength)
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{
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int old_effect;
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uint16_t old_strength;
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struct udev_joypad *pad = (struct udev_joypad*)&udev_pads[i];
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if (pad->fd < 0)
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return false;
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if (pad->num_effects < 2)
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return false;
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old_strength = pad->strength[effect];
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if (old_strength == strength)
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return true;
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old_effect = pad->has_set_ff[effect] ? pad->effects[effect] : -1;
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if (strength && strength != pad->configured_strength[effect])
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{
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/* Create new or update old playing state. */
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struct ff_effect e;
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memset(&e, 0, sizeof(e));
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e.type = FF_RUMBLE;
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e.id = old_effect;
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switch (effect)
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{
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case RETRO_RUMBLE_STRONG:
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e.u.rumble.strong_magnitude = strength;
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break;
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case RETRO_RUMBLE_WEAK:
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e.u.rumble.weak_magnitude = strength;
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break;
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default:
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return false;
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}
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if (ioctl(pad->fd, EVIOCSFF, &e) < 0)
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{
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RARCH_ERR("Failed to set rumble effect on pad #%u.\n", i);
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return false;
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}
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pad->effects[effect] = e.id;
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pad->has_set_ff[effect] = true;
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pad->configured_strength[effect] = strength;
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}
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pad->strength[effect] = strength;
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/* It seems that we can update strength with EVIOCSFF atomically. */
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if ((!!strength) != (!!old_strength))
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{
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struct input_event play = {{0}};
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play.type = EV_FF;
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play.code = pad->effects[effect];
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play.value = !!strength;
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if (write(pad->fd, &play, sizeof(play)) < (ssize_t)sizeof(play))
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{
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RARCH_ERR("[udev]: Failed to play rumble effect #%u on pad #%u.\n",
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effect, i);
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return false;
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}
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}
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return true;
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}
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static void udev_joypad_poll(void)
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{
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unsigned i;
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while (udev_hotplug_available())
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udev_joypad_handle_hotplug();
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for (i = 0; i < MAX_USERS; i++)
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udev_poll_pad(&udev_pads[i], i);
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}
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static bool udev_joypad_init(void *data)
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{
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unsigned i;
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