* Based on the work of:
* Andree Borrmann John Dahlstrom
* David Kuder Nathan Hand
+ * Raphael Assenat
*/
/*
#include <linux/init.h>
#include <linux/parport.h>
#include <linux/input.h>
+#include <linux/mutex.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("NES, SNES, N64, MultiSystem, PSX gamepad driver");
#define GC_N64 6
#define GC_PSX 7
#define GC_DDR 8
+#define GC_SNESMOUSE 9
-#define GC_MAX 8
+#define GC_MAX 9
#define GC_REFRESH_TIME HZ/100
struct timer_list timer;
unsigned char pads[GC_MAX + 1];
int used;
- struct semaphore sem;
+ struct mutex mutex;
char phys[GC_MAX_DEVICES][32];
};
static char *gc_names[] = { NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
"Multisystem 2-button joystick", "N64 controller", "PSX controller",
- "PSX DDR controller" };
+ "PSX DDR controller", "SNES mouse" };
/*
* N64 support.
*/
}
+static void gc_n64_process_packet(struct gc *gc)
+{
+ unsigned char data[GC_N64_LENGTH];
+ signed char axes[2];
+ struct input_dev *dev;
+ int i, j, s;
+
+ gc_n64_read_packet(gc, data);
+
+ for (i = 0; i < GC_MAX_DEVICES; i++) {
+
+ dev = gc->dev[i];
+ if (!dev)
+ continue;
+
+ s = gc_status_bit[i];
+
+ if (s & gc->pads[GC_N64] & ~(data[8] | data[9])) {
+
+ axes[0] = axes[1] = 0;
+
+ for (j = 0; j < 8; j++) {
+ if (data[23 - j] & s)
+ axes[0] |= 1 << j;
+ if (data[31 - j] & s)
+ axes[1] |= 1 << j;
+ }
+
+ input_report_abs(dev, ABS_X, axes[0]);
+ input_report_abs(dev, ABS_Y, -axes[1]);
+
+ input_report_abs(dev, ABS_HAT0X, !(s & data[6]) - !(s & data[7]));
+ input_report_abs(dev, ABS_HAT0Y, !(s & data[4]) - !(s & data[5]));
+
+ for (j = 0; j < 10; j++)
+ input_report_key(dev, gc_n64_btn[j], s & data[gc_n64_bytes[j]]);
+
+ input_sync(dev);
+ }
+ }
+}
+
/*
* NES/SNES support.
*/
-#define GC_NES_DELAY 6 /* Delay between bits - 6us */
-#define GC_NES_LENGTH 8 /* The NES pads use 8 bits of data */
-#define GC_SNES_LENGTH 12 /* The SNES true length is 16, but the last 4 bits are unused */
+#define GC_NES_DELAY 6 /* Delay between bits - 6us */
+#define GC_NES_LENGTH 8 /* The NES pads use 8 bits of data */
+#define GC_SNES_LENGTH 12 /* The SNES true length is 16, but the
+ last 4 bits are unused */
+#define GC_SNESMOUSE_LENGTH 32 /* The SNES mouse uses 32 bits, the first
+ 16 bits are equivalent to a gamepad */
#define GC_NES_POWER 0xfc
#define GC_NES_CLOCK 0x01
}
}
+static void gc_nes_process_packet(struct gc *gc)
+{
+ unsigned char data[GC_SNESMOUSE_LENGTH];
+ struct input_dev *dev;
+ int i, j, s, len;
+ char x_rel, y_rel;
+
+ len = gc->pads[GC_SNESMOUSE] ? GC_SNESMOUSE_LENGTH :
+ (gc->pads[GC_SNES] ? GC_SNES_LENGTH : GC_NES_LENGTH);
+
+ gc_nes_read_packet(gc, len, data);
+
+ for (i = 0; i < GC_MAX_DEVICES; i++) {
+
+ dev = gc->dev[i];
+ if (!dev)
+ continue;
+
+ s = gc_status_bit[i];
+
+ if (s & (gc->pads[GC_NES] | gc->pads[GC_SNES])) {
+ input_report_abs(dev, ABS_X, !(s & data[6]) - !(s & data[7]));
+ input_report_abs(dev, ABS_Y, !(s & data[4]) - !(s & data[5]));
+ }
+
+ if (s & gc->pads[GC_NES])
+ for (j = 0; j < 4; j++)
+ input_report_key(dev, gc_snes_btn[j], s & data[gc_nes_bytes[j]]);
+
+ if (s & gc->pads[GC_SNES])
+ for (j = 0; j < 8; j++)
+ input_report_key(dev, gc_snes_btn[j], s & data[gc_snes_bytes[j]]);
+
+ if (s & gc->pads[GC_SNESMOUSE]) {
+ /*
+ * The 4 unused bits from SNES controllers appear to be ID bits
+ * so use them to make sure iwe are dealing with a mouse.
+ * gamepad is connected. This is important since
+ * my SNES gamepad sends 1's for bits 16-31, which
+ * cause the mouse pointer to quickly move to the
+ * upper left corner of the screen.
+ */
+ if (!(s & data[12]) && !(s & data[13]) &&
+ !(s & data[14]) && (s & data[15])) {
+ input_report_key(dev, BTN_LEFT, s & data[9]);
+ input_report_key(dev, BTN_RIGHT, s & data[8]);
+
+ x_rel = y_rel = 0;
+ for (j = 0; j < 7; j++) {
+ x_rel <<= 1;
+ if (data[25 + j] & s)
+ x_rel |= 1;
+
+ y_rel <<= 1;
+ if (data[17 + j] & s)
+ y_rel |= 1;
+ }
+
+ if (x_rel) {
+ if (data[24] & s)
+ x_rel = -x_rel;
+ input_report_rel(dev, REL_X, x_rel);
+ }
+
+ if (y_rel) {
+ if (data[16] & s)
+ y_rel = -y_rel;
+ input_report_rel(dev, REL_Y, y_rel);
+ }
+ }
+ }
+ input_sync(dev);
+ }
+}
+
/*
* Multisystem joystick support
*/
}
}
+static void gc_multi_process_packet(struct gc *gc)
+{
+ unsigned char data[GC_MULTI2_LENGTH];
+ struct input_dev *dev;
+ int i, s;
+
+ gc_multi_read_packet(gc, gc->pads[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH, data);
+
+ for (i = 0; i < GC_MAX_DEVICES; i++) {
+
+ dev = gc->dev[i];
+ if (!dev)
+ continue;
+
+ s = gc_status_bit[i];
+
+ if (s & (gc->pads[GC_MULTI] | gc->pads[GC_MULTI2])) {
+ input_report_abs(dev, ABS_X, !(s & data[2]) - !(s & data[3]));
+ input_report_abs(dev, ABS_Y, !(s & data[0]) - !(s & data[1]));
+ input_report_key(dev, BTN_TRIGGER, s & data[4]);
+ }
+
+ if (s & gc->pads[GC_MULTI2])
+ input_report_key(dev, BTN_THUMB, s & data[5]);
+
+ input_sync(dev);
+ }
+}
+
/*
* PSX support
*
* the psx pad.
*/
-static void gc_psx_command(struct gc *gc, int b, unsigned char data[5])
+static void gc_psx_command(struct gc *gc, int b, unsigned char data[GC_MAX_DEVICES])
{
int i, j, cmd, read;
- for (i = 0; i < 5; i++)
+
+ for (i = 0; i < GC_MAX_DEVICES; i++)
data[i] = 0;
for (i = 0; i < GC_PSX_LENGTH; i++, b >>= 1) {
parport_write_data(gc->pd->port, cmd | GC_PSX_POWER);
udelay(gc_psx_delay);
read = parport_read_status(gc->pd->port) ^ 0x80;
- for (j = 0; j < 5; j++)
+ for (j = 0; j < GC_MAX_DEVICES; j++)
data[j] |= (read & gc_status_bit[j] & (gc->pads[GC_PSX] | gc->pads[GC_DDR])) ? (1 << i) : 0;
parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER);
udelay(gc_psx_delay);
* device identifier code.
*/
-static void gc_psx_read_packet(struct gc *gc, unsigned char data[5][GC_PSX_BYTES], unsigned char id[5])
+static void gc_psx_read_packet(struct gc *gc, unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES],
+ unsigned char id[GC_MAX_DEVICES])
{
int i, j, max_len = 0;
unsigned long flags;
- unsigned char data2[5];
+ unsigned char data2[GC_MAX_DEVICES];
parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER); /* Select pad */
udelay(gc_psx_delay);
gc_psx_command(gc, 0x42, id); /* Get device ids */
gc_psx_command(gc, 0, data2); /* Dump status */
- for (i =0; i < 5; i++) /* Find the longest pad */
+ for (i =0; i < GC_MAX_DEVICES; i++) /* Find the longest pad */
if((gc_status_bit[i] & (gc->pads[GC_PSX] | gc->pads[GC_DDR]))
&& (GC_PSX_LEN(id[i]) > max_len)
&& (GC_PSX_LEN(id[i]) <= GC_PSX_BYTES))
for (i = 0; i < max_len; i++) { /* Read in all the data */
gc_psx_command(gc, 0, data2);
- for (j = 0; j < 5; j++)
+ for (j = 0; j < GC_MAX_DEVICES; j++)
data[j][i] = data2[j];
}
parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
- for(i = 0; i < 5; i++) /* Set id's to the real value */
+ for(i = 0; i < GC_MAX_DEVICES; i++) /* Set id's to the real value */
id[i] = GC_PSX_ID(id[i]);
}
-/*
- * gc_timer() reads and analyzes console pads data.
- */
+static void gc_psx_process_packet(struct gc *gc)
+{
+ unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES];
+ unsigned char id[GC_MAX_DEVICES];
+ struct input_dev *dev;
+ int i, j;
-#define GC_MAX_LENGTH GC_N64_LENGTH
+ gc_psx_read_packet(gc, data, id);
-static void gc_timer(unsigned long private)
-{
- struct gc *gc = (void *) private;
- unsigned char data[GC_MAX_LENGTH];
- unsigned char data_psx[5][GC_PSX_BYTES];
- int i, j, s;
+ for (i = 0; i < GC_MAX_DEVICES; i++) {
-/*
- * N64 pads - must be read first, any read confuses them for 200 us
- */
+ dev = gc->dev[i];
+ if (!dev)
+ continue;
- if (gc->pads[GC_N64]) {
+ switch (id[i]) {
- gc_n64_read_packet(gc, data);
+ case GC_PSX_RUMBLE:
- for (i = 0; i < 5; i++) {
+ input_report_key(dev, BTN_THUMBL, ~data[i][0] & 0x04);
+ input_report_key(dev, BTN_THUMBR, ~data[i][0] & 0x02);
- s = gc_status_bit[i];
+ case GC_PSX_NEGCON:
+ case GC_PSX_ANALOG:
- if (s & gc->pads[GC_N64] & ~(data[8] | data[9])) {
+ if (gc->pads[GC_DDR] & gc_status_bit[i]) {
+ for(j = 0; j < 4; j++)
+ input_report_key(dev, gc_psx_ddr_btn[j], ~data[i][0] & (0x10 << j));
+ } else {
+ for (j = 0; j < 4; j++)
+ input_report_abs(dev, gc_psx_abs[j + 2], data[i][j + 2]);
- signed char axes[2];
- axes[0] = axes[1] = 0;
+ input_report_abs(dev, ABS_X, 128 + !(data[i][0] & 0x20) * 127 - !(data[i][0] & 0x80) * 128);
+ input_report_abs(dev, ABS_Y, 128 + !(data[i][0] & 0x40) * 127 - !(data[i][0] & 0x10) * 128);
+ }
- for (j = 0; j < 8; j++) {
- if (data[23 - j] & s) axes[0] |= 1 << j;
- if (data[31 - j] & s) axes[1] |= 1 << j;
+ for (j = 0; j < 8; j++)
+ input_report_key(dev, gc_psx_btn[j], ~data[i][1] & (1 << j));
+
+ input_report_key(dev, BTN_START, ~data[i][0] & 0x08);
+ input_report_key(dev, BTN_SELECT, ~data[i][0] & 0x01);
+
+ input_sync(dev);
+
+ break;
+
+ case GC_PSX_NORMAL:
+ if (gc->pads[GC_DDR] & gc_status_bit[i]) {
+ for(j = 0; j < 4; j++)
+ input_report_key(dev, gc_psx_ddr_btn[j], ~data[i][0] & (0x10 << j));
+ } else {
+ input_report_abs(dev, ABS_X, 128 + !(data[i][0] & 0x20) * 127 - !(data[i][0] & 0x80) * 128);
+ input_report_abs(dev, ABS_Y, 128 + !(data[i][0] & 0x40) * 127 - !(data[i][0] & 0x10) * 128);
+
+ /* for some reason if the extra axes are left unset they drift */
+ /* for (j = 0; j < 4; j++)
+ input_report_abs(dev, gc_psx_abs[j + 2], 128);
+ * This needs to be debugged properly,
+ * maybe fuzz processing needs to be done in input_sync()
+ * --vojtech
+ */
}
- input_report_abs(gc->dev[i], ABS_X, axes[0]);
- input_report_abs(gc->dev[i], ABS_Y, -axes[1]);
+ for (j = 0; j < 8; j++)
+ input_report_key(dev, gc_psx_btn[j], ~data[i][1] & (1 << j));
- input_report_abs(gc->dev[i], ABS_HAT0X, !(s & data[6]) - !(s & data[7]));
- input_report_abs(gc->dev[i], ABS_HAT0Y, !(s & data[4]) - !(s & data[5]));
+ input_report_key(dev, BTN_START, ~data[i][0] & 0x08);
+ input_report_key(dev, BTN_SELECT, ~data[i][0] & 0x01);
- for (j = 0; j < 10; j++)
- input_report_key(gc->dev[i], gc_n64_btn[j], s & data[gc_n64_bytes[j]]);
+ input_sync(dev);
- input_sync(gc->dev[i]);
- }
+ break;
+
+ case 0: /* not a pad, ignore */
+ break;
}
}
+}
/*
- * NES and SNES pads
+ * gc_timer() initiates reads of console pads data.
*/
- if (gc->pads[GC_NES] || gc->pads[GC_SNES]) {
-
- gc_nes_read_packet(gc, gc->pads[GC_SNES] ? GC_SNES_LENGTH : GC_NES_LENGTH, data);
-
- for (i = 0; i < 5; i++) {
-
- s = gc_status_bit[i];
+static void gc_timer(unsigned long private)
+{
+ struct gc *gc = (void *) private;
- if (s & (gc->pads[GC_NES] | gc->pads[GC_SNES])) {
- input_report_abs(gc->dev[i], ABS_X, !(s & data[6]) - !(s & data[7]));
- input_report_abs(gc->dev[i], ABS_Y, !(s & data[4]) - !(s & data[5]));
- }
+/*
+ * N64 pads - must be read first, any read confuses them for 200 us
+ */
- if (s & gc->pads[GC_NES])
- for (j = 0; j < 4; j++)
- input_report_key(gc->dev[i], gc_snes_btn[j], s & data[gc_nes_bytes[j]]);
+ if (gc->pads[GC_N64])
+ gc_n64_process_packet(gc);
- if (s & gc->pads[GC_SNES])
- for (j = 0; j < 8; j++)
- input_report_key(gc->dev[i], gc_snes_btn[j], s & data[gc_snes_bytes[j]]);
+/*
+ * NES and SNES pads or mouse
+ */
- input_sync(gc->dev[i]);
- }
- }
+ if (gc->pads[GC_NES] || gc->pads[GC_SNES] || gc->pads[GC_SNESMOUSE])
+ gc_nes_process_packet(gc);
/*
* Multi and Multi2 joysticks
*/
- if (gc->pads[GC_MULTI] || gc->pads[GC_MULTI2]) {
-
- gc_multi_read_packet(gc, gc->pads[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH, data);
-
- for (i = 0; i < 5; i++) {
-
- s = gc_status_bit[i];
-
- if (s & (gc->pads[GC_MULTI] | gc->pads[GC_MULTI2])) {
- input_report_abs(gc->dev[i], ABS_X, !(s & data[2]) - !(s & data[3]));
- input_report_abs(gc->dev[i], ABS_Y, !(s & data[0]) - !(s & data[1]));
- input_report_key(gc->dev[i], BTN_TRIGGER, s & data[4]);
- }
-
- if (s & gc->pads[GC_MULTI2])
- input_report_key(gc->dev[i], BTN_THUMB, s & data[5]);
-
- input_sync(gc->dev[i]);
- }
- }
+ if (gc->pads[GC_MULTI] || gc->pads[GC_MULTI2])
+ gc_multi_process_packet(gc);
/*
* PSX controllers
*/
- if (gc->pads[GC_PSX] || gc->pads[GC_DDR]) {
-
- gc_psx_read_packet(gc, data_psx, data);
-
- for (i = 0; i < 5; i++) {
- switch (data[i]) {
-
- case GC_PSX_RUMBLE:
-
- input_report_key(gc->dev[i], BTN_THUMBL, ~data_psx[i][0] & 0x04);
- input_report_key(gc->dev[i], BTN_THUMBR, ~data_psx[i][0] & 0x02);
-
- case GC_PSX_NEGCON:
- case GC_PSX_ANALOG:
-
- if (gc->pads[GC_DDR] & gc_status_bit[i]) {
- for(j = 0; j < 4; j++)
- input_report_key(gc->dev[i], gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j));
- } else {
- for (j = 0; j < 4; j++)
- input_report_abs(gc->dev[i], gc_psx_abs[j+2], data_psx[i][j + 2]);
-
- input_report_abs(gc->dev[i], ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128);
- input_report_abs(gc->dev[i], ABS_Y, 128 + !(data_psx[i][0] & 0x40) * 127 - !(data_psx[i][0] & 0x10) * 128);
- }
-
- for (j = 0; j < 8; j++)
- input_report_key(gc->dev[i], gc_psx_btn[j], ~data_psx[i][1] & (1 << j));
-
- input_report_key(gc->dev[i], BTN_START, ~data_psx[i][0] & 0x08);
- input_report_key(gc->dev[i], BTN_SELECT, ~data_psx[i][0] & 0x01);
-
- input_sync(gc->dev[i]);
-
- break;
-
- case GC_PSX_NORMAL:
- if (gc->pads[GC_DDR] & gc_status_bit[i]) {
- for(j = 0; j < 4; j++)
- input_report_key(gc->dev[i], gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j));
- } else {
- input_report_abs(gc->dev[i], ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128);
- input_report_abs(gc->dev[i], ABS_Y, 128 + !(data_psx[i][0] & 0x40) * 127 - !(data_psx[i][0] & 0x10) * 128);
-
- /* for some reason if the extra axes are left unset they drift */
- /* for (j = 0; j < 4; j++)
- input_report_abs(gc->dev[i], gc_psx_abs[j+2], 128);
- * This needs to be debugged properly,
- * maybe fuzz processing needs to be done in input_sync()
- * --vojtech
- */
- }
-
- for (j = 0; j < 8; j++)
- input_report_key(gc->dev[i], gc_psx_btn[j], ~data_psx[i][1] & (1 << j));
-
- input_report_key(gc->dev[i], BTN_START, ~data_psx[i][0] & 0x08);
- input_report_key(gc->dev[i], BTN_SELECT, ~data_psx[i][0] & 0x01);
-
- input_sync(gc->dev[i]);
-
- break;
-
- case 0: /* not a pad, ignore */
- break;
- }
- }
- }
+ if (gc->pads[GC_PSX] || gc->pads[GC_DDR])
+ gc_psx_process_packet(gc);
mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
}
struct gc *gc = dev->private;
int err;
- err = down_interruptible(&gc->sem);
+ err = mutex_lock_interruptible(&gc->mutex);
if (err)
return err;
mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
}
- up(&gc->sem);
+ mutex_unlock(&gc->mutex);
return 0;
}
{
struct gc *gc = dev->private;
- down(&gc->sem);
+ mutex_lock(&gc->mutex);
if (!--gc->used) {
del_timer_sync(&gc->timer);
parport_write_control(gc->pd->port, 0x00);
parport_release(gc->pd);
}
- up(&gc->sem);
+ mutex_unlock(&gc->mutex);
}
static int __init gc_setup_pad(struct gc *gc, int idx, int pad_type)
input_dev->open = gc_open;
input_dev->close = gc_close;
- input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ if (pad_type != GC_SNESMOUSE) {
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- for (i = 0; i < 2; i++)
- input_set_abs_params(input_dev, ABS_X + i, -1, 1, 0, 0);
+ for (i = 0; i < 2; i++)
+ input_set_abs_params(input_dev, ABS_X + i, -1, 1, 0, 0);
+ } else
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
gc->pads[0] |= gc_status_bit[idx];
gc->pads[pad_type] |= gc_status_bit[idx];
break;
+ case GC_SNESMOUSE:
+ set_bit(BTN_LEFT, input_dev->keybit);
+ set_bit(BTN_RIGHT, input_dev->keybit);
+ set_bit(REL_X, input_dev->relbit);
+ set_bit(REL_Y, input_dev->relbit);
+ break;
+
case GC_SNES:
for (i = 4; i < 8; i++)
set_bit(gc_snes_btn[i], input_dev->keybit);
goto err_unreg_pardev;
}
- init_MUTEX(&gc->sem);
+ mutex_init(&gc->mutex);
gc->pd = pd;
init_timer(&gc->timer);
gc->timer.data = (long) gc;
gc->timer.function = gc_timer;
- for (i = 0; i < n_pads; i++) {
+ for (i = 0; i < n_pads && i < GC_MAX_DEVICES; i++) {
if (!pads[i])
continue;
- sprintf(gc->phys[i], "%s/input%d", gc->pd->port->name, i);
+ snprintf(gc->phys[i], sizeof(gc->phys[i]),
+ "%s/input%d", gc->pd->port->name, i);
err = gc_setup_pad(gc, i, pads[i]);
if (err)
- goto err_free_devs;
+ goto err_unreg_devs;
- input_register_device(gc->dev[i]);
+ err = input_register_device(gc->dev[i]);
+ if (err)
+ goto err_free_dev;
}
if (!gc->pads[0]) {
parport_put_port(pp);
return gc;
- err_free_devs:
+ err_free_dev:
+ input_free_device(gc->dev[i]);
+ err_unreg_devs:
while (--i >= 0)
- input_unregister_device(gc->dev[i]);
+ if (gc->dev[i])
+ input_unregister_device(gc->dev[i]);
err_free_gc:
kfree(gc);
err_unreg_pardev:
return ERR_PTR(err);
}
-static void __exit gc_remove(struct gc *gc)
+static void gc_remove(struct gc *gc)
{
int i;
if (err) {
while (--i >= 0)
- gc_remove(gc_base[i]);
+ if (gc_base[i])
+ gc_remove(gc_base[i]);
return err;
}
projects / linux-2.6-omap-h63xx.git / blobdiff