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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/input/joystick/turbografx.c
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/input/joystick/turbografx.c')
-rw-r--r--kernel/drivers/input/joystick/turbografx.c107
1 files changed, 56 insertions, 51 deletions
diff --git a/kernel/drivers/input/joystick/turbografx.c b/kernel/drivers/input/joystick/turbografx.c
index 27b6a3ce1..77f575dd0 100644
--- a/kernel/drivers/input/joystick/turbografx.c
+++ b/kernel/drivers/input/joystick/turbografx.c
@@ -49,7 +49,7 @@ struct tgfx_config {
unsigned int nargs;
};
-static struct tgfx_config tgfx_cfg[TGFX_MAX_PORTS] __initdata;
+static struct tgfx_config tgfx_cfg[TGFX_MAX_PORTS];
module_param_array_named(map, tgfx_cfg[0].args, int, &tgfx_cfg[0].nargs, 0);
MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<js1>,<js2>,..<js7>");
@@ -81,6 +81,7 @@ static struct tgfx {
char phys[TGFX_MAX_DEVICES][32];
int sticks;
int used;
+ int parportno;
struct mutex sem;
} *tgfx_base[TGFX_MAX_PORTS];
@@ -156,38 +157,49 @@ static void tgfx_close(struct input_dev *dev)
* tgfx_probe() probes for tg gamepads.
*/
-static struct tgfx __init *tgfx_probe(int parport, int *n_buttons, int n_devs)
+static void tgfx_attach(struct parport *pp)
{
struct tgfx *tgfx;
struct input_dev *input_dev;
- struct parport *pp;
struct pardevice *pd;
- int i, j;
- int err;
+ int i, j, port_idx;
+ int *n_buttons, n_devs;
+ struct pardev_cb tgfx_parport_cb;
+
+ for (port_idx = 0; port_idx < TGFX_MAX_PORTS; port_idx++) {
+ if (tgfx_cfg[port_idx].nargs == 0 ||
+ tgfx_cfg[port_idx].args[0] < 0)
+ continue;
+ if (tgfx_cfg[port_idx].args[0] == pp->number)
+ break;
+ }
- pp = parport_find_number(parport);
- if (!pp) {
- printk(KERN_ERR "turbografx.c: no such parport\n");
- err = -EINVAL;
- goto err_out;
+ if (port_idx == TGFX_MAX_PORTS) {
+ pr_debug("Not using parport%d.\n", pp->number);
+ return;
}
+ n_buttons = tgfx_cfg[port_idx].args + 1;
+ n_devs = tgfx_cfg[port_idx].nargs - 1;
+
+ memset(&tgfx_parport_cb, 0, sizeof(tgfx_parport_cb));
+ tgfx_parport_cb.flags = PARPORT_FLAG_EXCL;
- pd = parport_register_device(pp, "turbografx", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
+ pd = parport_register_dev_model(pp, "turbografx", &tgfx_parport_cb,
+ port_idx);
if (!pd) {
- printk(KERN_ERR "turbografx.c: parport busy already - lp.o loaded?\n");
- err = -EBUSY;
- goto err_put_pp;
+ pr_err("parport busy already - lp.o loaded?\n");
+ return;
}
tgfx = kzalloc(sizeof(struct tgfx), GFP_KERNEL);
if (!tgfx) {
printk(KERN_ERR "turbografx.c: Not enough memory\n");
- err = -ENOMEM;
goto err_unreg_pardev;
}
mutex_init(&tgfx->sem);
tgfx->pd = pd;
+ tgfx->parportno = pp->number;
init_timer(&tgfx->timer);
tgfx->timer.data = (long) tgfx;
tgfx->timer.function = tgfx_timer;
@@ -196,16 +208,14 @@ static struct tgfx __init *tgfx_probe(int parport, int *n_buttons, int n_devs)
if (n_buttons[i] < 1)
continue;
- if (n_buttons[i] > 6) {
+ if (n_buttons[i] > ARRAY_SIZE(tgfx_buttons)) {
printk(KERN_ERR "turbografx.c: Invalid number of buttons %d\n", n_buttons[i]);
- err = -EINVAL;
goto err_unreg_devs;
}
tgfx->dev[i] = input_dev = input_allocate_device();
if (!input_dev) {
printk(KERN_ERR "turbografx.c: Not enough memory for input device\n");
- err = -ENOMEM;
goto err_unreg_devs;
}
@@ -234,19 +244,17 @@ static struct tgfx __init *tgfx_probe(int parport, int *n_buttons, int n_devs)
for (j = 0; j < n_buttons[i]; j++)
set_bit(tgfx_buttons[j], input_dev->keybit);
- err = input_register_device(tgfx->dev[i]);
- if (err)
+ if (input_register_device(tgfx->dev[i]))
goto err_free_dev;
}
if (!tgfx->sticks) {
printk(KERN_ERR "turbografx.c: No valid devices specified\n");
- err = -EINVAL;
goto err_free_tgfx;
}
- parport_put_port(pp);
- return tgfx;
+ tgfx_base[port_idx] = tgfx;
+ return;
err_free_dev:
input_free_device(tgfx->dev[i]);
@@ -258,15 +266,23 @@ static struct tgfx __init *tgfx_probe(int parport, int *n_buttons, int n_devs)
kfree(tgfx);
err_unreg_pardev:
parport_unregister_device(pd);
- err_put_pp:
- parport_put_port(pp);
- err_out:
- return ERR_PTR(err);
}
-static void tgfx_remove(struct tgfx *tgfx)
+static void tgfx_detach(struct parport *port)
{
int i;
+ struct tgfx *tgfx;
+
+ for (i = 0; i < TGFX_MAX_PORTS; i++) {
+ if (tgfx_base[i] && tgfx_base[i]->parportno == port->number)
+ break;
+ }
+
+ if (i == TGFX_MAX_PORTS)
+ return;
+
+ tgfx = tgfx_base[i];
+ tgfx_base[i] = NULL;
for (i = 0; i < TGFX_MAX_DEVICES; i++)
if (tgfx->dev[i])
@@ -275,11 +291,17 @@ static void tgfx_remove(struct tgfx *tgfx)
kfree(tgfx);
}
+static struct parport_driver tgfx_parport_driver = {
+ .name = "turbografx",
+ .match_port = tgfx_attach,
+ .detach = tgfx_detach,
+ .devmodel = true,
+};
+
static int __init tgfx_init(void)
{
int i;
int have_dev = 0;
- int err = 0;
for (i = 0; i < TGFX_MAX_PORTS; i++) {
if (tgfx_cfg[i].nargs == 0 || tgfx_cfg[i].args[0] < 0)
@@ -287,38 +309,21 @@ static int __init tgfx_init(void)
if (tgfx_cfg[i].nargs < 2) {
printk(KERN_ERR "turbografx.c: at least one joystick must be specified\n");
- err = -EINVAL;
- break;
- }
-
- tgfx_base[i] = tgfx_probe(tgfx_cfg[i].args[0],
- tgfx_cfg[i].args + 1,
- tgfx_cfg[i].nargs - 1);
- if (IS_ERR(tgfx_base[i])) {
- err = PTR_ERR(tgfx_base[i]);
- break;
+ return -EINVAL;
}
have_dev = 1;
}
- if (err) {
- while (--i >= 0)
- if (tgfx_base[i])
- tgfx_remove(tgfx_base[i]);
- return err;
- }
+ if (!have_dev)
+ return -ENODEV;
- return have_dev ? 0 : -ENODEV;
+ return parport_register_driver(&tgfx_parport_driver);
}
static void __exit tgfx_exit(void)
{
- int i;
-
- for (i = 0; i < TGFX_MAX_PORTS; i++)
- if (tgfx_base[i])
- tgfx_remove(tgfx_base[i]);
+ parport_unregister_driver(&tgfx_parport_driver);
}
module_init(tgfx_init);