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NetBSD: improved joystick support (thanks, Thomas!). 

This patch skips non-joystick HID devices and gives joysticks on NetBSD
a human readable name.

Fixes Bugzilla #3178.
This commit is contained in:
Ryan C. Gordon 2015-12-29 02:29:56 -05:00
parent 2254932b3e
commit ce0f90ffb9
1 changed files with 46 additions and 2 deletions
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48
src/joystick/bsd/SDL_sysjoystick.c
View File

@ -76,7 +76,7 @@
#include "../SDL_sysjoystick.h" #include "../SDL_sysjoystick.h"
#include "../SDL_joystick_c.h" #include "../SDL_joystick_c.h"
#define MAX_UHID_JOYS 16 #define MAX_UHID_JOYS 64
#define MAX_JOY_JOYS 2 #define MAX_JOY_JOYS 2
#define MAX_JOYS (MAX_UHID_JOYS + MAX_JOY_JOYS) #define MAX_JOYS (MAX_UHID_JOYS + MAX_JOY_JOYS)
@ -286,7 +286,7 @@ SDL_SYS_JoystickOpen(SDL_Joystick * joy, int device_index)
struct joystick_hwdata *hw; struct joystick_hwdata *hw;
struct hid_item hitem; struct hid_item hitem;
struct hid_data *hdata; struct hid_data *hdata;
struct report *rep; struct report *rep = NULL;
int fd; int fd;
int i; int i;
@ -337,6 +337,38 @@ SDL_SYS_JoystickOpen(SDL_Joystick * joy, int device_index)
#endif #endif
rep->rid = -1; /* XXX */ 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) { if (report_alloc(rep, hw->repdesc, REPORT_INPUT) < 0) {
goto usberr; goto usberr;
} }
@ -409,9 +441,21 @@ SDL_SYS_JoystickOpen(SDL_Joystick * joy, int device_index)
if (hw->axis_map[i] > 0) if (hw->axis_map[i] > 0)
hw->axis_map[i] = joy->naxes++; 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: usbend:
/* The poll blocks the event thread. */ /* The poll blocks the event thread. */
fcntl(fd, F_SETFL, O_NONBLOCK); fcntl(fd, F_SETFL, O_NONBLOCK);
#ifdef __NetBSD__
/* Flush pending events */
if (rep) {
while (read(joy->hwdata->fd, REP_BUF_DATA(rep), rep->size) == rep->size)
;
}
#endif
return (0); return (0);
usberr: usberr: