diff options
Diffstat (limited to 'drivers/input/joystick/gamecon.c')
| -rw-r--r-- | drivers/input/joystick/gamecon.c | 57 |
1 files changed, 20 insertions, 37 deletions
diff --git a/drivers/input/joystick/gamecon.c b/drivers/input/joystick/gamecon.c index d62e73dd9f7f..ae95cb3d0ae9 100644 --- a/drivers/input/joystick/gamecon.c +++ b/drivers/input/joystick/gamecon.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux * @@ -10,22 +11,6 @@ * Raphael Assenat */ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/kernel.h> @@ -497,7 +482,7 @@ static void gc_multi_process_packet(struct gc *gc) switch (pad->type) { case GC_MULTI2: input_report_key(dev, BTN_THUMB, s & data[5]); - /* fall through */ + fallthrough; case GC_MULTI: input_report_abs(dev, ABS_X, @@ -650,7 +635,7 @@ static void gc_psx_report_one(struct gc_pad *pad, unsigned char psx_type, input_report_key(dev, BTN_THUMBL, ~data[0] & 0x04); input_report_key(dev, BTN_THUMBR, ~data[0] & 0x02); - /* fall through */ + fallthrough; case GC_PSX_NEGCON: case GC_PSX_ANALOG: @@ -741,7 +726,7 @@ static void gc_psx_process_packet(struct gc *gc) static void gc_timer(struct timer_list *t) { - struct gc *gc = from_timer(gc, t, timer); + struct gc *gc = timer_container_of(gc, t, timer); /* * N64 pads - must be read first, any read confuses them for 200 us @@ -780,33 +765,31 @@ static void gc_timer(struct timer_list *t) static int gc_open(struct input_dev *dev) { struct gc *gc = input_get_drvdata(dev); - int err; - err = mutex_lock_interruptible(&gc->mutex); - if (err) - return err; + scoped_guard(mutex_intr, &gc->mutex) { + if (!gc->used++) { + parport_claim(gc->pd); + parport_write_control(gc->pd->port, 0x04); + mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME); + } - if (!gc->used++) { - parport_claim(gc->pd); - parport_write_control(gc->pd->port, 0x04); - mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME); + return 0; } - mutex_unlock(&gc->mutex); - return 0; + return -EINTR; } static void gc_close(struct input_dev *dev) { struct gc *gc = input_get_drvdata(dev); - mutex_lock(&gc->mutex); + guard(mutex)(&gc->mutex); + if (!--gc->used) { - del_timer_sync(&gc->timer); + timer_delete_sync(&gc->timer); parport_write_control(gc->pd->port, 0x00); parport_release(gc->pd); } - mutex_unlock(&gc->mutex); } static int gc_setup_pad(struct gc *gc, int idx, int pad_type) @@ -884,7 +867,8 @@ static int gc_setup_pad(struct gc *gc, int idx, int pad_type) case GC_SNES: for (i = 4; i < 8; i++) input_set_capability(input_dev, EV_KEY, gc_snes_btn[i]); - /* fall through */ + fallthrough; + case GC_NES: for (i = 0; i < 4; i++) input_set_capability(input_dev, EV_KEY, gc_snes_btn[i]); @@ -892,10 +876,10 @@ static int gc_setup_pad(struct gc *gc, int idx, int pad_type) case GC_MULTI2: input_set_capability(input_dev, EV_KEY, BTN_THUMB); - /* fall through */ + fallthrough; + case GC_MULTI: input_set_capability(input_dev, EV_KEY, BTN_TRIGGER); - /* fall through */ break; case GC_PSX: @@ -964,7 +948,7 @@ static void gc_attach(struct parport *pp) return; } - gc = kzalloc(sizeof(struct gc), GFP_KERNEL); + gc = kzalloc(sizeof(*gc), GFP_KERNEL); if (!gc) { pr_err("Not enough memory\n"); goto err_unreg_pardev; @@ -1030,7 +1014,6 @@ static struct parport_driver gc_parport_driver = { .name = "gamecon", .match_port = gc_attach, .detach = gc_detach, - .devmodel = true, }; static int __init gc_init(void) |