Bring forward the joystick changes I made for devel/SDL to devel/SDL2:

- Skip non-joystick HID devices
- On NetBSD, try to give joysticks a better name than "/dev/uhid4".
  Try to read the device name from the USB descriptor and append
  "@ /dev/uhid4" to the end.

1 files changed, 67 insertions, 0 deletions

diff --git a/devel/SDL2/patches/patch-src_joystick_bsd_SDL__sysjoystick.c b/devel/SDL2/patches/patch-src_joystick_bsd_SDL__sysjoystick.c
new file mode 100644
index 00000000000..a9d9f059ff3
--- /dev/null
+++ b/devel/SDL2/patches/patch-src_joystick_bsd_SDL__sysjoystick.c
@@ -0,0 +1,67 @@
+$NetBSD: patch-src_joystick_bsd_SDL__sysjoystick.c,v 1.1 2015/02/13 23:31:06 jmcneill Exp $
+
+Skip non-joystick HID devices, and give joysticks on NetBSD a human readable
+name.
+
+--- src/joystick/bsd/SDL_sysjoystick.c.orig	2014-03-16 02:31:41.000000000 +0000
++++ src/joystick/bsd/SDL_sysjoystick.c
+@@ -76,7 +76,7 @@
+ #include "../SDL_sysjoystick.h"
+ #include "../SDL_joystick_c.h"
+ 
+-#define MAX_UHID_JOYS   16
++#define MAX_UHID_JOYS   64
+ #define MAX_JOY_JOYS    2
+ #define MAX_JOYS    (MAX_UHID_JOYS + MAX_JOY_JOYS)
+ 
+@@ -342,6 +342,38 @@ SDL_SYS_JoystickOpen(SDL_Joystick * joy,
+ #endif
+         rep->rid = -1;          /* XXX */
+     }
++#if defined(__NetBSD__)
++    usb_device_descriptor_t udd;
++    struct usb_string_desc usd;
++    if (ioctl(fd, USB_GET_DEVICE_DESC, &udd) == -1)
++        goto desc_failed;
++
++    /* Get default language */
++    usd.usd_string_index = USB_LANGUAGE_TABLE;
++    usd.usd_language_id = 0;
++    if (ioctl(fd, USB_GET_STRING_DESC, &usd) == -1 || usd.usd_desc.bLength < 4) {
++        usd.usd_language_id = 0;
++    } else {
++        usd.usd_language_id = UGETW(usd.usd_desc.bString[0]);
++    }
++
++    usd.usd_string_index = udd.iProduct;
++    if (ioctl(fd, USB_GET_STRING_DESC, &usd) == 0) {
++        char str[128];
++        char *new_name = NULL;
++        int i;
++        for (i = 0; i < (usd.usd_desc.bLength >> 1) - 1 && i < sizeof(str) - 1; i++) {
++            str[i] = UGETW(usd.usd_desc.bString[i]);
++        }
++        str[i] = '\0';
++        asprintf(&new_name, "%s @ %s", str, path);
++        if (new_name != NULL) {
++            free(joydevnames[SDL_SYS_numjoysticks]);
++            joydevnames[SDL_SYS_numjoysticks] = new_name;
++        }
++    }
++desc_failed:
++#endif
+     if (report_alloc(rep, hw->repdesc, REPORT_INPUT) < 0) {
+         goto usberr;
+     }
+@@ -414,6 +446,11 @@ SDL_SYS_JoystickOpen(SDL_Joystick * joy,
+         if (hw->axis_map[i] > 0)
+             hw->axis_map[i] = joy->naxes++;
+ 
++    if (joy->naxes == 0 && joy->nbuttons == 0 && joy->nhats == 0 && joy->nballs == 0) {
++        SDL_SetError("%s: Not a joystick, ignoring", hw->path);
++        goto usberr;
++    }
++
+   usbend:
+     /* The poll blocks the event thread. */
+     fcntl(fd, F_SETFL, O_NONBLOCK);