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https://git.sr.ht/~thestr4ng3r/chiaki
synced 2025-08-14 18:57:07 -07:00
Better Polling in Setsu
This commit is contained in:
Florian Märkl
parent
9c91843d98
commit
092355ff00
3 changed files with 94 additions and 62 deletions
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@ -18,10 +18,10 @@
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#ifndef _SETSU_H
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#define _SETSU_H
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typedef struct setsu_ctx_t SetsuCtx;
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typedef struct setsu_t Setsu;
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SetsuCtx *setsu_ctx_new();
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void setsu_ctx_free(SetsuCtx *ctx);
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void setsu_ctx_run(SetsuCtx *ctx);
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Setsu *setsu_new();
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void setsu_free(Setsu *setsu);
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void setsu_poll(Setsu *setsu);
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#endif
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@ -30,6 +30,10 @@
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#include <stdio.h>
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#define SETSU_LOG(...) fprintf(stderr, __VA_ARGS__)
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typedef struct setsu_device_t
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{
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struct setsu_device_t *next;
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@ -38,51 +42,53 @@ typedef struct setsu_device_t
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struct libevdev *evdev;
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} SetsuDevice;
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struct setsu_ctx_t
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struct setsu_t
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{
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struct udev *udev_ctx;
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struct udev *udev_setsu;
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SetsuDevice *dev;
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};
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static void scan(SetsuCtx *ctx);
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static void update_device(SetsuCtx *ctx, struct udev_device *dev, bool added);
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static SetsuDevice *connect(SetsuCtx *ctx, const char *path);
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static void disconnect(SetsuCtx *ctx, SetsuDevice *dev);
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static void scan(Setsu *setsu);
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static void update_device(Setsu *setsu, struct udev_device *dev, bool added);
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static SetsuDevice *connect(Setsu *setsu, const char *path);
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static void disconnect(Setsu *setsu, SetsuDevice *dev);
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static void poll_device(Setsu *setsu, SetsuDevice *dev);
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static void device_event(Setsu *setsu, SetsuDevice *dev, struct input_event *ev);
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SetsuCtx *setsu_ctx_new()
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Setsu *setsu_new()
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{
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SetsuCtx *ctx = malloc(sizeof(SetsuCtx));
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if(!ctx)
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Setsu *setsu = malloc(sizeof(Setsu));
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if(!setsu)
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return NULL;
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ctx->dev = NULL;
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setsu->dev = NULL;
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ctx->udev_ctx = udev_new();
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if(!ctx->udev_ctx)
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setsu->udev_setsu = udev_new();
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if(!setsu->udev_setsu)
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{
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free(ctx);
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free(setsu);
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return NULL;
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}
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// TODO: monitor
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scan(ctx);
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scan(setsu);
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return ctx;
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return setsu;
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}
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void setsu_ctx_free(SetsuCtx *ctx)
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void setsu_free(Setsu *setsu)
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{
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while(ctx->dev)
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disconnect(ctx, ctx->dev);
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udev_unref(ctx->udev_ctx);
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free(ctx);
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while(setsu->dev)
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disconnect(setsu, setsu->dev);
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udev_unref(setsu->udev_setsu);
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free(setsu);
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}
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static void scan(SetsuCtx *ctx)
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static void scan(Setsu *setsu)
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{
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struct udev_enumerate *udev_enum = udev_enumerate_new(ctx->udev_ctx);
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struct udev_enumerate *udev_enum = udev_enumerate_new(setsu->udev_setsu);
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if(!udev_enum)
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return;
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@ -100,10 +106,11 @@ static void scan(SetsuCtx *ctx)
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const char *path = udev_list_entry_get_name(entry);
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if(!path)
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continue;
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struct udev_device *dev = udev_device_new_from_syspath(ctx->udev_ctx, path);
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struct udev_device *dev = udev_device_new_from_syspath(setsu->udev_setsu, path);
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if(!dev)
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continue;
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update_device(ctx, dev, true);
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SETSU_LOG("enum device: %s\n", path);
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update_device(setsu, dev, true);
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udev_device_unref(dev);
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}
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@ -115,7 +122,8 @@ static bool is_device_interesting(struct udev_device *dev)
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{
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static const char *device_ids[] = {
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// vendor id, model id
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"054c", "05c4", // DualShock 4 USB
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"054c", "05c4", // DualShock 4 Gen 1 USB
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"054c", "09cc", // DualShock 4 Gen 2 USB
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NULL
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};
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@ -136,7 +144,7 @@ static bool is_device_interesting(struct udev_device *dev)
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return false;
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}
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static void update_device(SetsuCtx *ctx, struct udev_device *dev, bool added)
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static void update_device(Setsu *setsu, struct udev_device *dev, bool added)
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{
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if(!is_device_interesting(dev))
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return;
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@ -144,19 +152,19 @@ static void update_device(SetsuCtx *ctx, struct udev_device *dev, bool added)
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if(!path)
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return;
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for(SetsuDevice *dev = ctx->dev; dev; dev=dev->next)
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for(SetsuDevice *dev = setsu->dev; dev; dev=dev->next)
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{
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if(!strcmp(dev->path, path))
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{
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if(added)
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return; // already added, do nothing
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disconnect(ctx, dev);
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disconnect(setsu, dev);
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}
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}
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connect(ctx, path);
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connect(setsu, path);
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}
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static SetsuDevice *connect(SetsuCtx *ctx, const char *path)
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static SetsuDevice *connect(Setsu *setsu, const char *path)
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{
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SetsuDevice *dev = malloc(sizeof(SetsuDevice));
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if(!dev)
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@ -174,10 +182,10 @@ static SetsuDevice *connect(SetsuCtx *ctx, const char *path)
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if(libevdev_new_from_fd(dev->fd, &dev->evdev) < 0)
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goto error;
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printf("connected to %s\n", libevdev_get_name(dev->evdev));
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SETSU_LOG("connected to %s\n", libevdev_get_name(dev->evdev));
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dev->next = ctx->dev;
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ctx->dev = dev;
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dev->next = setsu->dev;
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setsu->dev = dev;
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return dev;
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error:
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if(dev->evdev)
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@ -189,13 +197,13 @@ error:
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return NULL;
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}
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static void disconnect(SetsuCtx *ctx, SetsuDevice *dev)
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static void disconnect(Setsu *setsu, SetsuDevice *dev)
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{
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if(ctx->dev == dev)
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ctx->dev = dev->next;
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if(setsu->dev == dev)
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setsu->dev = dev->next;
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else
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{
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for(SetsuDevice *pdev = ctx->dev; pdev; pdev=pdev->next)
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for(SetsuDevice *pdev = setsu->dev; pdev; pdev=pdev->next)
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{
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if(pdev->next == dev)
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{
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@ -209,22 +217,45 @@ static void disconnect(SetsuCtx *ctx, SetsuDevice *dev)
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free(dev);
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}
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void setsu_ctx_run(SetsuCtx *ctx)
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void setsu_poll(Setsu *setsu)
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{
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SetsuDevice *dev = ctx->dev;
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if(!dev)
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return;
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int rc;
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do
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{
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struct input_event ev;
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rc = libevdev_next_event(dev->evdev, LIBEVDEV_READ_FLAG_NORMAL, &ev);
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if (rc == 0)
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printf("Event: %s %s %d\n",
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libevdev_event_type_get_name(ev.type),
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libevdev_event_code_get_name(ev.type, ev.code),
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ev.value);
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} while (rc == 1 || rc == 0 || rc == -EAGAIN);
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for(SetsuDevice *dev = setsu->dev; dev; dev = dev->next)
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poll_device(setsu, dev);
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}
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static void poll_device(Setsu *setsu, SetsuDevice *dev)
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{
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bool sync = false;
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while(true)
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{
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struct input_event ev;
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int r = libevdev_next_event(dev->evdev, sync ? LIBEVDEV_READ_FLAG_SYNC : LIBEVDEV_READ_FLAG_NORMAL, &ev);
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if(r == -EAGAIN)
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{
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if(sync)
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{
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sync = false;
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continue;
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}
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break;
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}
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if(r == LIBEVDEV_READ_STATUS_SUCCESS || (sync && r == LIBEVDEV_READ_STATUS_SYNC))
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device_event(setsu, dev, &ev);
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else if(r == LIBEVDEV_READ_STATUS_SYNC)
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sync = true;
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else
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{
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SETSU_LOG("evdev poll failed\n");
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break;
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}
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}
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}
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static void device_event(Setsu *setsu, SetsuDevice *dev, struct input_event *ev)
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{
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printf("Event: %s %s %d\n",
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libevdev_event_type_get_name(ev->type),
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libevdev_event_code_get_name(ev->type, ev->code),
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ev->value);
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}
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@ -20,22 +20,23 @@
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#include <stdlib.h>
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#include <stdio.h>
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SetsuCtx *ctx;
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Setsu *setsu;
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void quit()
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{
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setsu_ctx_free(ctx);
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setsu_free(setsu);
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}
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int main()
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{
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ctx = setsu_ctx_new();
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if(!ctx)
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setsu = setsu_new();
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if(!setsu)
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{
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printf("Failed to init setsu\n");
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return 1;
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}
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setsu_ctx_run(ctx);
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while(1)
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setsu_poll(setsu);
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atexit(quit);
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return 0;
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}
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