Add the files

1 files changed, 92 insertions, 0 deletions

diff --git a/src/detection/keyboard/keyboard_bsd.c b/src/detection/keyboard/keyboard_bsd.c
new file mode 100644
index 0000000..4b0ee57
--- /dev/null
+++ b/src/detection/keyboard/keyboard_bsd.c
@@ -0,0 +1,92 @@
+#include "keyboard.h"
+#include "common/io.h"
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <usbhid.h>
+#include <sys/kbio.h>
+
+#if __has_include(<dev/usb/usb_ioctl.h>)
+    #include <dev/usb/usb_ioctl.h> // FreeBSD
+#else
+    #include <bus/u4b/usb_ioctl.h> // DragonFly
+#endif
+
+static const char* detectByIoctl(FFlist* devices) {
+    keyboard_info_t kbdInfo;
+    if (ioctl(STDIN_FILENO, KDGKBINFO, &kbdInfo) != 0) {
+        return "ioctl(KDGKBINFO) failed";
+    }
+
+    FFKeyboardDevice* device = FF_LIST_ADD(FFKeyboardDevice, *devices);
+
+    switch (kbdInfo.kb_type) {
+        case KB_84:
+            ffStrbufInitS(&device->name, "AT 84-key keyboard");
+            break;
+        case KB_101:
+            ffStrbufInitS(&device->name, "AT 101/102-key keyboard");
+            break;
+        default:
+            ffStrbufInitS(&device->name, "Unknown keyboard");
+            break;
+    }
+
+    ffStrbufAppendF(&device->name, " (kbd%d)", kbdInfo.kb_index);
+
+    ffStrbufInit(&device->serial);
+    return NULL;
+}
+
+#define MAX_UHID_KBDS 64
+
+static const char* detectByUsbhid(FFlist* devices) {
+    char path[16];
+    for (int i = 0; i < MAX_UHID_KBDS; i++) {
+        snprintf(path, ARRAY_SIZE(path), "/dev/uhid%d", i);
+        FF_AUTO_CLOSE_FD int fd = open(path, O_RDONLY | O_CLOEXEC);
+        if (fd < 0) {
+            if (errno == ENOENT) {
+                break; // No more devices
+            }
+            continue; // Device not found
+        }
+
+        report_desc_t repDesc = hid_get_report_desc(fd);
+        if (!repDesc) {
+            continue;
+        }
+
+        int reportId = hid_get_report_id(fd);
+
+        struct hid_data* hData = hid_start_parse(repDesc, 0, reportId);
+        if (hData) {
+            struct hid_item hItem;
+            while (hid_get_item(hData, &hItem) > 0) {
+                if (HID_PAGE(hItem.usage) != 1 || HID_USAGE(hItem.usage) != 6) {
+                    continue;
+                }
+
+                struct usb_device_info di;
+                if (ioctl(fd, USB_GET_DEVICEINFO, &di) != -1) {
+                    FFKeyboardDevice* device = FF_LIST_ADD(FFKeyboardDevice, *devices);
+                    ffStrbufInitS(&device->serial, di.udi_serial);
+                    ffStrbufInitS(&device->name, di.udi_product);
+                }
+            }
+            hid_end_parse(hData);
+        }
+
+        hid_dispose_report_desc(repDesc);
+    }
+
+    return NULL;
+}
+
+const char* ffDetectKeyboard(FFlist* devices /* List of FFKeyboardDevice */) {
+    detectByUsbhid(devices);
+    if (devices->length > 0) {
+        return NULL;
+    }
+    return detectByIoctl(devices);
+}