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path: root/drivers/input/joystick/db9.c
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Diffstat (limited to 'drivers/input/joystick/db9.c')
-rw-r--r--drivers/input/joystick/db9.c292
1 files changed, 176 insertions, 116 deletions
diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c
index 2a3e4bb2da5..499344c7275 100644
--- a/drivers/input/joystick/db9.c
+++ b/drivers/input/joystick/db9.c
@@ -43,25 +43,28 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver");
MODULE_LICENSE("GPL");
-static int db9[] __initdata = { -1, 0 };
-static int db9_nargs __initdata = 0;
-module_param_array_named(dev, db9, int, &db9_nargs, 0);
-MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)");
+struct db9_config {
+ int args[2];
+ int nargs;
+};
-static int db9_2[] __initdata = { -1, 0 };
-static int db9_nargs_2 __initdata = 0;
-module_param_array_named(dev2, db9_2, int, &db9_nargs_2, 0);
-MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)");
+#define DB9_MAX_PORTS 3
+static struct db9_config db9[DB9_MAX_PORTS] __initdata;
-static int db9_3[] __initdata = { -1, 0 };
-static int db9_nargs_3 __initdata = 0;
-module_param_array_named(dev3, db9_3, int, &db9_nargs_3, 0);
+module_param_array_named(dev, db9[0].args, int, &db9[0].nargs, 0);
+MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)");
+module_param_array_named(dev2, db9[1].args, int, &db9[0].nargs, 0);
+MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)");
+module_param_array_named(dev3, db9[2].args, int, &db9[2].nargs, 0);
MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)");
__obsolete_setup("db9=");
__obsolete_setup("db9_2=");
__obsolete_setup("db9_3=");
+#define DB9_ARG_PARPORT 0
+#define DB9_ARG_MODE 1
+
#define DB9_MULTI_STICK 0x01
#define DB9_MULTI2_STICK 0x02
#define DB9_GENESIS_PAD 0x03
@@ -87,40 +90,53 @@ __obsolete_setup("db9_3=");
#define DB9_NORMAL 0x0a
#define DB9_NOSELECT 0x08
-#define DB9_MAX_DEVICES 2
-
#define DB9_GENESIS6_DELAY 14
#define DB9_REFRESH_TIME HZ/100
+#define DB9_MAX_DEVICES 2
+
+struct db9_mode_data {
+ const char *name;
+ const short *buttons;
+ int n_buttons;
+ int n_pads;
+ int n_axis;
+ int bidirectional;
+ int reverse;
+};
+
struct db9 {
- struct input_dev dev[DB9_MAX_DEVICES];
+ struct input_dev *dev[DB9_MAX_DEVICES];
struct timer_list timer;
struct pardevice *pd;
int mode;
int used;
struct semaphore sem;
- char phys[2][32];
+ char phys[DB9_MAX_DEVICES][32];
};
static struct db9 *db9_base[3];
-static short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
-static short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
-static short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
-
-static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 9, 1, 1, 7, 9, 9 };
-static short *db9_btn[DB9_MAX_PAD] = { NULL, db9_multi_btn, db9_multi_btn, db9_genesis_btn, NULL, db9_genesis_btn,
- db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn,
- db9_cd32_btn, db9_cd32_btn };
-static char *db9_name[DB9_MAX_PAD] = { NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad",
- NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick",
- "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad", "Saturn dpp", "Saturn dpp dual" };
-
-static const int db9_max_pads[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 6, 1, 2, 1, 6, 12 };
-static const int db9_num_axis[DB9_MAX_PAD] = { 0, 2, 2, 2, 0, 2, 2, 7, 2, 2, 2 ,7, 7 };
+static const short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
+static const short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
+static const short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
static const short db9_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_RZ, ABS_Z, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
-static const int db9_bidirectional[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0 };
-static const int db9_reverse[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0 };
+
+static const struct db9_mode_data db9_modes[] = {
+ { NULL, NULL, 0, 0, 0, 0, 0 },
+ { "Multisystem joystick", db9_multi_btn, 1, 1, 2, 1, 1 },
+ { "Multisystem joystick (2 fire)", db9_multi_btn, 2, 1, 2, 1, 1 },
+ { "Genesis pad", db9_genesis_btn, 4, 1, 2, 1, 1 },
+ { NULL, NULL, 0, 0, 0, 0, 0 },
+ { "Genesis 5 pad", db9_genesis_btn, 6, 1, 2, 1, 1 },
+ { "Genesis 6 pad", db9_genesis_btn, 8, 1, 2, 1, 1 },
+ { "Saturn pad", db9_cd32_btn, 9, 6, 7, 0, 1 },
+ { "Multisystem (0.8.0.2) joystick", db9_multi_btn, 1, 1, 2, 1, 1 },
+ { "Multisystem (0.8.0.2-dual) joystick", db9_multi_btn, 1, 2, 2, 1, 1 },
+ { "Amiga CD-32 pad", db9_cd32_btn, 7, 1, 2, 1, 1 },
+ { "Saturn dpp", db9_cd32_btn, 9, 6, 7, 0, 0 },
+ { "Saturn dpp dual", db9_cd32_btn, 9, 12, 7, 0, 0 },
+};
/*
* Saturn controllers
@@ -342,7 +358,7 @@ static int db9_saturn(int mode, struct parport *port, struct input_dev *dev)
default:
return -1;
}
- max_pads = min(db9_max_pads[mode], DB9_MAX_DEVICES);
+ max_pads = min(db9_modes[mode].n_pads, DB9_MAX_DEVICES);
for (tmp = 0, i = 0; i < n; i++) {
id = db9_saturn_read_packet(port, data, type + i, 1);
tmp = db9_saturn_report(id, data, dev, tmp, max_pads);
@@ -354,17 +370,18 @@ static void db9_timer(unsigned long private)
{
struct db9 *db9 = (void *) private;
struct parport *port = db9->pd->port;
- struct input_dev *dev = db9->dev;
+ struct input_dev *dev = db9->dev[0];
+ struct input_dev *dev2 = db9->dev[1];
int data, i;
- switch(db9->mode) {
+ switch (db9->mode) {
case DB9_MULTI_0802_2:
data = parport_read_data(port) >> 3;
- input_report_abs(dev + 1, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
- input_report_abs(dev + 1, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
- input_report_key(dev + 1, BTN_TRIGGER, ~data & DB9_FIRE1);
+ input_report_abs(dev2, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+ input_report_abs(dev2, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
+ input_report_key(dev2, BTN_TRIGGER, ~data & DB9_FIRE1);
case DB9_MULTI_0802:
@@ -405,7 +422,7 @@ static void db9_timer(unsigned long private)
input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
parport_write_control(port, DB9_NORMAL);
- data=parport_read_data(port);
+ data = parport_read_data(port);
input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
@@ -414,7 +431,7 @@ static void db9_timer(unsigned long private)
case DB9_GENESIS5_PAD:
parport_write_control(port, DB9_NOSELECT);
- data=parport_read_data(port);
+ data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
@@ -422,7 +439,7 @@ static void db9_timer(unsigned long private)
input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
parport_write_control(port, DB9_NORMAL);
- data=parport_read_data(port);
+ data = parport_read_data(port);
input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
input_report_key(dev, BTN_X, ~data & DB9_FIRE2);
@@ -434,7 +451,7 @@ static void db9_timer(unsigned long private)
parport_write_control(port, DB9_NOSELECT); /* 1 */
udelay(DB9_GENESIS6_DELAY);
- data=parport_read_data(port);
+ data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
@@ -443,7 +460,7 @@ static void db9_timer(unsigned long private)
parport_write_control(port, DB9_NORMAL);
udelay(DB9_GENESIS6_DELAY);
- data=parport_read_data(port);
+ data = parport_read_data(port);
input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
@@ -477,7 +494,7 @@ static void db9_timer(unsigned long private)
case DB9_CD32_PAD:
- data=parport_read_data(port);
+ data = parport_read_data(port);
input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
@@ -489,7 +506,7 @@ static void db9_timer(unsigned long private)
parport_write_control(port, 0x02);
parport_write_control(port, 0x0a);
input_report_key(dev, db9_cd32_btn[i], ~data & DB9_FIRE2);
- }
+ }
parport_write_control(port, 0x00);
break;
@@ -513,7 +530,7 @@ static int db9_open(struct input_dev *dev)
if (!db9->used++) {
parport_claim(db9->pd);
parport_write_data(port, 0xff);
- if (db9_reverse[db9->mode]) {
+ if (db9_modes[db9->mode].reverse) {
parport_data_reverse(port);
parport_write_control(port, DB9_NORMAL);
}
@@ -539,117 +556,160 @@ static void db9_close(struct input_dev *dev)
up(&db9->sem);
}
-static struct db9 __init *db9_probe(int *config, int nargs)
+static struct db9 __init *db9_probe(int parport, int mode)
{
struct db9 *db9;
+ const struct db9_mode_data *db9_mode;
struct parport *pp;
+ struct pardevice *pd;
+ struct input_dev *input_dev;
int i, j;
+ int err;
- if (config[0] < 0)
- return NULL;
-
- if (nargs < 2) {
- printk(KERN_ERR "db9.c: Device type must be specified.\n");
- return NULL;
+ if (mode < 1 || mode >= DB9_MAX_PAD || !db9_modes[mode].n_buttons) {
+ printk(KERN_ERR "db9.c: Bad device type %d\n", mode);
+ err = -EINVAL;
+ goto err_out;
}
- if (config[1] < 1 || config[1] >= DB9_MAX_PAD || !db9_buttons[config[1]]) {
- printk(KERN_ERR "db9.c: bad config\n");
- return NULL;
- }
+ db9_mode = &db9_modes[mode];
- pp = parport_find_number(config[0]);
+ pp = parport_find_number(parport);
if (!pp) {
printk(KERN_ERR "db9.c: no such parport\n");
- return NULL;
+ err = -ENODEV;
+ goto err_out;
}
- if (db9_bidirectional[config[1]]) {
- if (!(pp->modes & PARPORT_MODE_TRISTATE)) {
- printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
- parport_put_port(pp);
- return NULL;
- }
+ if (db9_mode[mode].bidirectional && !(pp->modes & PARPORT_MODE_TRISTATE)) {
+ printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
+ err = -EINVAL;
+ goto err_put_pp;
+ }
+
+ pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
+ if (!pd) {
+ printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n");
+ err = -EBUSY;
+ goto err_put_pp;
}
- if (!(db9 = kzalloc(sizeof(struct db9), GFP_KERNEL))) {
- parport_put_port(pp);
- return NULL;
+ db9 = kzalloc(sizeof(struct db9), GFP_KERNEL);
+ if (!db9) {
+ printk(KERN_ERR "db9.c: Not enough memory\n");
+ err = -ENOMEM;
+ goto err_unreg_pardev;
}
init_MUTEX(&db9->sem);
- db9->mode = config[1];
+ db9->pd = pd;
+ db9->mode = mode;
init_timer(&db9->timer);
db9->timer.data = (long) db9;
db9->timer.function = db9_timer;
- db9->pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
- parport_put_port(pp);
-
- if (!db9->pd) {
- printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n");
- kfree(db9);
- return NULL;
- }
+ for (i = 0; i < (min(db9_mode->n_pads, DB9_MAX_DEVICES)); i++) {
- for (i = 0; i < (min(db9_max_pads[db9->mode], DB9_MAX_DEVICES)); i++) {
+ db9->dev[i] = input_dev = input_allocate_device();
+ if (!input_dev) {
+ printk(KERN_ERR "db9.c: Not enough memory for input device\n");
+ err = -ENOMEM;
+ goto err_free_devs;
+ }
sprintf(db9->phys[i], "%s/input%d", db9->pd->port->name, i);
- db9->dev[i].private = db9;
- db9->dev[i].open = db9_open;
- db9->dev[i].close = db9_close;
-
- db9->dev[i].name = db9_name[db9->mode];
- db9->dev[i].phys = db9->phys[i];
- db9->dev[i].id.bustype = BUS_PARPORT;
- db9->dev[i].id.vendor = 0x0002;
- db9->dev[i].id.product = config[1];
- db9->dev[i].id.version = 0x0100;
-
- db9->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- for (j = 0; j < db9_buttons[db9->mode]; j++)
- set_bit(db9_btn[db9->mode][j], db9->dev[i].keybit);
- for (j = 0; j < db9_num_axis[db9->mode]; j++) {
- set_bit(db9_abs[j], db9->dev[i].absbit);
- if (j < 2) {
- db9->dev[i].absmin[db9_abs[j]] = -1;
- db9->dev[i].absmax[db9_abs[j]] = 1;
- } else {
- db9->dev[i].absmin[db9_abs[j]] = 1;
- db9->dev[i].absmax[db9_abs[j]] = 255;
- db9->dev[i].absflat[db9_abs[j]] = 0;
- }
+ input_dev->name = db9_mode->name;
+ input_dev->phys = db9->phys[i];
+ input_dev->id.bustype = BUS_PARPORT;
+ input_dev->id.vendor = 0x0002;
+ input_dev->id.product = mode;
+ input_dev->id.version = 0x0100;
+ input_dev->private = db9;
+
+ input_dev->open = db9_open;
+ input_dev->close = db9_close;
+
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ for (j = 0; j < db9_mode->n_buttons; j++)
+ set_bit(db9_mode->buttons[j], input_dev->keybit);
+ for (j = 0; j < db9_mode->n_axis; j++) {
+ if (j < 2)
+ input_set_abs_params(input_dev, db9_abs[j], -1, 1, 0, 0);
+ else
+ input_set_abs_params(input_dev, db9_abs[j], 1, 255, 0, 0);
}
- input_register_device(db9->dev + i);
- printk(KERN_INFO "input: %s on %s\n", db9->dev[i].name, db9->pd->port->name);
+
+ input_register_device(input_dev);
}
+ parport_put_port(pp);
return db9;
+
+ err_free_devs:
+ while (--i >= 0)
+ input_unregister_device(db9->dev[i]);
+ kfree(db9);
+ err_unreg_pardev:
+ parport_unregister_device(pd);
+ err_put_pp:
+ parport_put_port(pp);
+ err_out:
+ return ERR_PTR(err);
+}
+
+static void __exit db9_remove(struct db9 *db9)
+{
+ int i;
+
+ for (i = 0; i < min(db9_modes[db9->mode].n_pads, DB9_MAX_DEVICES); i++)
+ input_unregister_device(db9->dev[i]);
+ parport_unregister_device(db9->pd);
+ kfree(db9);
}
static int __init db9_init(void)
{
- db9_base[0] = db9_probe(db9, db9_nargs);
- db9_base[1] = db9_probe(db9_2, db9_nargs_2);
- db9_base[2] = db9_probe(db9_3, db9_nargs_3);
+ int i;
+ int have_dev = 0;
+ int err = 0;
+
+ for (i = 0; i < DB9_MAX_PORTS; i++) {
+ if (db9[i].nargs == 0 || db9[i].args[DB9_ARG_PARPORT] < 0)
+ continue;
+
+ if (db9[i].nargs < 2) {
+ printk(KERN_ERR "db9.c: Device type must be specified.\n");
+ err = -EINVAL;
+ break;
+ }
+
+ db9_base[i] = db9_probe(db9[i].args[DB9_ARG_PARPORT],
+ db9[i].args[DB9_ARG_MODE]);
+ if (IS_ERR(db9_base[i])) {
+ err = PTR_ERR(db9_base[i]);
+ break;
+ }
+
+ have_dev = 1;
+ }
- if (db9_base[0] || db9_base[1] || db9_base[2])
- return 0;
+ if (err) {
+ while (--i >= 0)
+ db9_remove(db9_base[i]);
+ return err;
+ }
- return -ENODEV;
+ return have_dev ? 0 : -ENODEV;
}
static void __exit db9_exit(void)
{
- int i, j;
+ int i;
- for (i = 0; i < 3; i++)
- if (db9_base[i]) {
- for (j = 0; j < min(db9_max_pads[db9_base[i]->mode], DB9_MAX_DEVICES); j++)
- input_unregister_device(db9_base[i]->dev + j);
- parport_unregister_device(db9_base[i]->pd);
- }
+ for (i = 0; i < DB9_MAX_PORTS; i++)
+ if (db9_base[i])
+ db9_remove(db9_base[i]);
}
module_init(db9_init);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-22 10:34:30 +0000