Mercurial > sdl-ios-xcode
changeset 278:dcd9f7b50a1c
Added support for joysticks on *BSD (thanks Wilbern!)
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Thu, 14 Feb 2002 01:24:08 +0000 |
parents | 255c7ee077cb |
children | 04351f59b051 |
files | configure.in docs.html src/joystick/Makefile.am src/joystick/bsd/Makefile.am src/joystick/bsd/SDL_sysjoystick.c |
diffstat | 5 files changed, 404 insertions(+), 10 deletions(-) [+] |
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--- a/configure.in Thu Feb 14 00:47:46 2002 +0000 +++ b/configure.in Thu Feb 14 01:24:08 2002 +0000 @@ -1452,10 +1452,9 @@ # AUDIO_DRIVERS="$AUDIO_DRIVERS sun/libaudio_sun.la" #fi # Set up files for the joystick library - # (No joystick support yet) if test x$enable_joystick = xyes; then - JOYSTICK_SUBDIRS="$JOYSTICK_SUBDIRS dummy" - JOYSTICK_DRIVERS="$JOYSTICK_DRIVERS dummy/libjoystick_dummy.la" + JOYSTICK_SUBDIRS="$JOYSTICK_SUBDIRS bsd" + JOYSTICK_DRIVERS="$JOYSTICK_DRIVERS bsd/libjoystick_bsd.la" fi # Set up files for the cdrom library if test x$enable_cdrom = xyes; then @@ -1504,10 +1503,9 @@ AUDIO_DRIVERS="$AUDIO_DRIVERS sun/libaudio_sun.la" fi # Set up files for the joystick library - # (No joystick support yet) if test x$enable_joystick = xyes; then - JOYSTICK_SUBDIRS="$JOYSTICK_SUBDIRS dummy" - JOYSTICK_DRIVERS="$JOYSTICK_DRIVERS dummy/libjoystick_dummy.la" + JOYSTICK_SUBDIRS="$JOYSTICK_SUBDIRS bsd" + JOYSTICK_DRIVERS="$JOYSTICK_DRIVERS bsd/libjoystick_bsd.la" fi # Set up files for the cdrom library if test x$enable_cdrom = xyes; then @@ -1564,10 +1562,9 @@ SYSTEM_LIBS="$SYSTEM_LIBS -lossaudio" fi # Set up files for the joystick library - # (No joystick support yet) if test x$enable_joystick = xyes; then - JOYSTICK_SUBDIRS="$JOYSTICK_SUBDIRS dummy" - JOYSTICK_DRIVERS="$JOYSTICK_DRIVERS dummy/libjoystick_dummy.la" + JOYSTICK_SUBDIRS="$JOYSTICK_SUBDIRS bsd" + JOYSTICK_DRIVERS="$JOYSTICK_DRIVERS bsd/libjoystick_bsd.la" fi # Set up files for the cdrom library if test x$enable_cdrom = xyes; then
--- a/docs.html Thu Feb 14 00:47:46 2002 +0000 +++ b/docs.html Thu Feb 14 01:24:08 2002 +0000 @@ -16,6 +16,7 @@ Major changes since SDL 1.0.0: </H2> <UL> + <LI> 1.2.4: Added support for joysticks on *BSD (thanks Wilbern!) <LI> 1.2.4: Added a YUV overlay test program (thanks Jon!) <LI> 1.2.4: Added support for building SDL for EPOC/SymbianOS 6.0 <LI> 1.2.4: Added support for Xi Graphics XME fullscreen extension
--- a/src/joystick/Makefile.am Thu Feb 14 00:47:46 2002 +0000 +++ b/src/joystick/Makefile.am Thu Feb 14 01:24:08 2002 +0000 @@ -5,7 +5,7 @@ # Define which subdirectories need to be built SUBDIRS = @JOYSTICK_SUBDIRS@ -DIST_SUBDIRS = dummy amigaos beos darwin linux macos win32 +DIST_SUBDIRS = dummy amigaos beos bsd darwin linux macos win32 DRIVERS = @JOYSTICK_DRIVERS@
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/joystick/bsd/Makefile.am Thu Feb 14 01:24:08 2002 +0000 @@ -0,0 +1,8 @@ + +## Makefile.am for the BSD joystick driver for SDL + +noinst_LTLIBRARIES = libjoystick_bsd.la +libjoystick_bsd_la_SOURCES = $(SRCS) + +# The SDL joystick driver sources +SRCS = SDL_sysjoystick.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/joystick/bsd/SDL_sysjoystick.c Thu Feb 14 01:24:08 2002 +0000 @@ -0,0 +1,388 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@devolution.com +*/ + +/* + * Joystick driver for the uhid(4) interface found in OpenBSD, + * NetBSD and FreeBSD. + * + * Maintainer: <vedge at csoft.org> + */ + +#ifdef SAVE_RCSID +static char rcsid = + "@(#) $Id $"; +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> +#include <string.h> +#include <errno.h> + +#include <dev/usb/usb.h> +#include <dev/usb/usbhid.h> +#include <usbhid.h> + +#include "SDL_error.h" +#include "SDL_joystick.h" +#include "SDL_sysjoystick.h" +#include "SDL_joystick_c.h" + +#define MAX_UHID_JOYS 4 +#define MAX_JOY_JOYS 2 +#define MAX_JOYS (MAX_UHID_JOYS + MAX_JOY_JOYS) + +#define SDLAXIS_UINT8(v) \ + ((v == 127) ? 0 : \ + (v == 255) ? 32767 : \ + -32767) + +struct report { + struct usb_ctl_report *buf; /* Buffer */ + size_t size; /* Buffer size */ + int rid; /* Report ID */ + enum { + SREPORT_UNINIT, + SREPORT_CLEAN, + SREPORT_DIRTY + } status; +}; + +static struct { + int uhid_report; + enum hid_kind kind; + const char *name; +} const repinfo[] = { + { UHID_INPUT_REPORT, hid_input, "input" }, + { UHID_OUTPUT_REPORT, hid_output, "output" }, + { UHID_FEATURE_REPORT, hid_feature, "feature" } +}; +#define REPORT_INPUT 0 +#define REPORT_OUTPUT 1 +#define REPORT_FEATURE 2 + +struct joystick_hwdata { + int fd; + char *path; + enum { + BSDJOY_UHID, /* uhid(4) */ + BSDJOY_JOY /* joy(4) */ + } type; + struct report_desc *repdesc; + struct report inreport; + int axismin[3]; + int axismax[3]; +}; + +static char *joynames[MAX_JOYS]; +static char *joydevnames[MAX_JOYS]; + +static int report_alloc(struct report *, struct report_desc *, int); +static void report_free(struct report *); + +int +SDL_SYS_JoystickInit(void) +{ + char s[10]; + int i, fd; + + SDL_numjoysticks = 0; + + memset(joynames, NULL, sizeof(joynames)); + memset(joydevnames, NULL, sizeof(joydevnames)); + + for (i = 0; i < MAX_UHID_JOYS; i++) { + sprintf(s, "/dev/uhid%d", i); + fd = open(s, O_RDWR); + if (fd > 0) { + joynames[SDL_numjoysticks++] = strdup(s); + close(fd); + } + } + for (i = 0; i < MAX_JOY_JOYS; i++) { + sprintf(s, "/dev/joy%d", i); + fd = open(s, O_RDWR); + if (fd > 0) { + joynames[SDL_numjoysticks++] = strdup(s); + close(fd); + } + } + + /* Read the default USB HID usage table. */ + hid_init(NULL); + + return (SDL_numjoysticks); +} + +const char * +SDL_SYS_JoystickName(int index) +{ + if (joydevnames[index] != NULL) { + return (joydevnames[index]); + } + return (joynames[index]); +} + +int +SDL_SYS_JoystickOpen(SDL_Joystick *joy) +{ + char *path = joynames[joy->index]; + struct joystick_hwdata *hw; + struct hid_item hitem; + struct hid_data *hdata; + struct report *rep; + int fd; + + fd = open(path, O_RDWR); + if (fd < 0) { + SDL_SetError("%s: %s", path, strerror(errno)); + return (-1); + } + + hw = (struct joystick_hwdata *)malloc(sizeof(struct joystick_hwdata)); + if (hw == NULL) { + SDL_OutOfMemory(); + close(fd); + return (-1); + } + joy->hwdata = hw; + hw->fd = fd; + hw->path = strdup(path); + hw->type = BSDJOY_UHID; + hw->repdesc = hid_get_report_desc(fd); + if (hw->repdesc == NULL) { + SDL_SetError("%s: USB_GET_REPORT_DESC: %s", hw->path, + strerror(errno)); + goto usberr; + } + + rep = &hw->inreport; + if (report_alloc(rep, hw->repdesc, REPORT_INPUT) < 0) { + goto usberr; + } + if (rep->size <= 0) { + SDL_SetError("Input report descriptor has invalid length"); + goto usberr; + } + + hdata = hid_start_parse(hw->repdesc, 1 << hid_input); + if (hdata == NULL) { + SDL_SetError("%s: Cannot start HID parser", hw->path); + goto usberr; + } + joy->naxes = 0; + joy->nbuttons = 0; + joy->nhats = 0; + joy->nballs = 0; + + while (hid_get_item(hdata, &hitem) > 0) { + char *s, *sp; + + switch (hitem.kind) { + case hid_collection: + switch (HID_PAGE(hitem.usage)) { + case HUP_GENERIC_DESKTOP: + switch (HID_USAGE(hitem.usage)) { + case HUG_JOYSTICK: + case HUG_GAME_PAD: + s = hid_usage_in_page(hitem.usage); + sp = malloc(strlen(s) + 5); + sprintf(sp, "%s (%d)", s, + joy->index); + joydevnames[joy->index] = sp; + } + } + break; + case hid_input: + switch (HID_PAGE(hitem.usage)) { + case HUP_UNDEFINED: + break; + case HUP_GENERIC_DESKTOP: + switch (HID_USAGE(hitem.usage)) { + case HUG_X: + case HUG_Y: + case HUG_Z: + hw->axismin[joy->naxes] = + hitem.logical_minimum; + hw->axismax[joy->naxes] = + hitem.logical_maximum; + joy->naxes++; + break; + } + break; + case HUP_BUTTON: + joy->nbuttons++; + break; + } + break; + default: + break; + } + } + hid_end_parse(hdata); + + /* The poll blocks the event thread. */ + fcntl(fd, F_SETFL, O_NONBLOCK); + + return (0); +usberr: + close(hw->fd); + free(hw->path); + free(hw); + return (-1); +} + +void +SDL_SYS_JoystickUpdate(SDL_Joystick *joy) +{ + static struct hid_item hitem; + static struct hid_data *hdata; + static int nbutton, naxe, v, max, min; + static struct report *rep; + + rep = &joy->hwdata->inreport; + if (read(joy->hwdata->fd, rep->buf->data, rep->size) != rep->size) { + return; + } + hdata = hid_start_parse(joy->hwdata->repdesc, 1 << hid_input); + if (hdata == NULL) { + fprintf(stderr, "%s: Cannot start HID parser\n", + joy->hwdata->path); + return; + } + + for (nbutton = 0, naxe = 0; hid_get_item(hdata, &hitem) > 0;) { + switch (hitem.kind) { + case hid_input: + switch (HID_PAGE(hitem.usage)) { + case HUP_UNDEFINED: + continue; + case HUP_GENERIC_DESKTOP: + switch (HID_USAGE(hitem.usage)) { + case HUG_X: + case HUG_Y: + case HUG_Z: + v = hid_get_data(rep->buf->data, + &hitem); + + /* + * XXX revisit later. need to test + * with more devices. + */ + if (joy->hwdata->axismin[naxe] == 0 && + joy->hwdata->axismax[naxe] == 255) { + v = SDLAXIS_UINT8(v); + } + + if (v != joy->axes[naxe]) { + SDL_PrivateJoystickAxis(joy, + naxe, (Sint32)v); + } + naxe++; + break; + } + break; + case HUP_BUTTON: + /* XXX assume a 0..1 range */ + v = hid_get_data(rep->buf->data, &hitem); + if (joy->buttons[nbutton] != v) { + SDL_PrivateJoystickButton(joy, + nbutton, v); + } + nbutton++; + break; + } + break; + default: + break; + } + } + hid_end_parse(hdata); + + return; +} + +/* Function to close a joystick after use */ +void +SDL_SYS_JoystickClose(SDL_Joystick *joy) +{ + report_free(&joy->hwdata->inreport); + hid_dispose_report_desc(joy->hwdata->repdesc); + close(joy->hwdata->fd); + free(joy->hwdata->path); + free(joy->hwdata); + + return; +} + +void +SDL_SYS_JoystickQuit(void) +{ + int i; + + for (i = 0; i < MAX_JOYS; i++) { + if (joynames[i] != NULL) + free(joynames[i]); + if (joydevnames[i] != NULL) + free(joydevnames[i]); + } + + return; +} + +static int +report_alloc(struct report *r, struct report_desc *rd, int repind) +{ + int len; + + len = hid_report_size(rd, repinfo[repind].kind, &r->rid); + if (len < 0) { + SDL_SetError("Negative HID report size"); + return (-1); + } + r->size = len; + + if (r->size > 0) { + r->buf = malloc(sizeof(*r->buf) - sizeof(r->buf->data) + + r->size); + if (r->buf == NULL) { + SDL_OutOfMemory(); + return (-1); + } + } else { + r->buf = NULL; + } + + r->status = SREPORT_CLEAN; + return (0); +} + +static void +report_free(struct report *r) +{ + if (r->buf != NULL) { + free(r->buf); + } + r->status = SREPORT_UNINIT; +} +