/*
* NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux
*
- * Copyright (c) 1999-2004 Vojtech Pavlik <vojtech@suse.cz>
- * Copyright (c) 2004 Peter Nelson <rufus-kernel@hackish.org>
+ * Copyright (c) 1999-2004 Vojtech Pavlik <vojtech@suse.cz>
+ * Copyright (c) 2004 Peter Nelson <rufus-kernel@hackish.org>
*
* Based on the work of:
- * Andree Borrmann John Dahlstrom
- * David Kuder Nathan Hand
+ * 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");
MODULE_LICENSE("GPL");
-static int gc[] __initdata = { -1, 0, 0, 0, 0, 0 };
-static int gc_nargs __initdata = 0;
-module_param_array_named(map, gc, int, &gc_nargs, 0);
-MODULE_PARM_DESC(map, "Describers first set of devices (<parport#>,<pad1>,<pad2>,..<pad5>)");
+#define GC_MAX_PORTS 3
+#define GC_MAX_DEVICES 5
-static int gc_2[] __initdata = { -1, 0, 0, 0, 0, 0 };
-static int gc_nargs_2 __initdata = 0;
-module_param_array_named(map2, gc_2, int, &gc_nargs_2, 0);
-MODULE_PARM_DESC(map2, "Describers second set of devices");
+struct gc_config {
+ int args[GC_MAX_DEVICES + 1];
+ int nargs;
+};
+
+static struct gc_config gc[GC_MAX_PORTS] __initdata;
-static int gc_3[] __initdata = { -1, 0, 0, 0, 0, 0 };
-static int gc_nargs_3 __initdata = 0;
-module_param_array_named(map3, gc_3, int, &gc_nargs_3, 0);
-MODULE_PARM_DESC(map3, "Describers third set of devices");
+module_param_array_named(map, gc[0].args, int, &gc[0].nargs, 0);
+MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<pad1>,<pad2>,..<pad5>)");
+module_param_array_named(map2, gc[1].args, int, &gc[1].nargs, 0);
+MODULE_PARM_DESC(map2, "Describes second set of devices");
+module_param_array_named(map3, gc[2].args, int, &gc[2].nargs, 0);
+MODULE_PARM_DESC(map3, "Describes third set of devices");
__obsolete_setup("gc=");
__obsolete_setup("gc_2=");
#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 gc {
struct pardevice *pd;
- struct input_dev dev[5];
+ struct input_dev *dev[GC_MAX_DEVICES];
struct timer_list timer;
unsigned char pads[GC_MAX + 1];
int used;
- char phys[5][32];
+ struct mutex mutex;
+ char phys[GC_MAX_DEVICES][32];
};
static struct gc *gc_base[3];
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.
- */
-
-#define GC_MAX_LENGTH GC_N64_LENGTH
-
-static void gc_timer(unsigned long private)
+static void gc_psx_process_packet(struct gc *gc)
{
- struct gc *gc = (void *) private;
- struct input_dev *dev = gc->dev;
- unsigned char data[GC_MAX_LENGTH];
- unsigned char data_psx[5][GC_PSX_BYTES];
- int i, j, s;
-
-/*
- * N64 pads - must be read first, any read confuses them for 200 us
- */
+ unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES];
+ unsigned char id[GC_MAX_DEVICES];
+ struct input_dev *dev;
+ int i, j;
- if (gc->pads[GC_N64]) {
+ gc_psx_read_packet(gc, data, id);
- gc_n64_read_packet(gc, data);
+ for (i = 0; i < GC_MAX_DEVICES; i++) {
- for (i = 0; i < 5; i++) {
+ dev = gc->dev[i];
+ if (!dev)
+ continue;
- s = gc_status_bit[i];
+ switch (id[i]) {
- if (s & gc->pads[GC_N64] & ~(data[8] | data[9])) {
+ case GC_PSX_RUMBLE:
- signed char axes[2];
- axes[0] = axes[1] = 0;
+ input_report_key(dev, BTN_THUMBL, ~data[i][0] & 0x04);
+ input_report_key(dev, BTN_THUMBR, ~data[i][0] & 0x02);
- for (j = 0; j < 8; j++) {
- if (data[23 - j] & s) axes[0] |= 1 << j;
- if (data[31 - j] & s) axes[1] |= 1 << j;
- }
+ case GC_PSX_NEGCON:
+ case GC_PSX_ANALOG:
- input_report_abs(dev + i, ABS_X, axes[0]);
- input_report_abs(dev + i, ABS_Y, -axes[1]);
+ 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]);
- input_report_abs(dev + i, ABS_HAT0X, !(s & data[6]) - !(s & data[7]));
- input_report_abs(dev + i, ABS_HAT0Y, !(s & data[4]) - !(s & data[5]));
+ 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 < 10; j++)
- input_report_key(dev + i, gc_n64_btn[j], s & data[gc_n64_bytes[j]]);
+ for (j = 0; j < 8; j++)
+ input_report_key(dev, gc_psx_btn[j], ~data[i][1] & (1 << j));
- input_sync(dev + i);
- }
- }
- }
+ input_report_key(dev, BTN_START, ~data[i][0] & 0x08);
+ input_report_key(dev, BTN_SELECT, ~data[i][0] & 0x01);
-/*
- * NES and SNES pads
- */
+ input_sync(dev);
- 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);
+ break;
- for (i = 0; i < 5; i++) {
+ 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
+ */
+ }
- s = gc_status_bit[i];
+ for (j = 0; j < 8; j++)
+ input_report_key(dev, gc_psx_btn[j], ~data[i][1] & (1 << j));
- if (s & (gc->pads[GC_NES] | gc->pads[GC_SNES])) {
- input_report_abs(dev + i, ABS_X, !(s & data[6]) - !(s & data[7]));
- input_report_abs(dev + i, ABS_Y, !(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);
- if (s & gc->pads[GC_NES])
- for (j = 0; j < 4; j++)
- input_report_key(dev + i, gc_snes_btn[j], s & data[gc_nes_bytes[j]]);
+ input_sync(dev);
- if (s & gc->pads[GC_SNES])
- for (j = 0; j < 8; j++)
- input_report_key(dev + i, gc_snes_btn[j], s & data[gc_snes_bytes[j]]);
+ break;
- input_sync(dev + i);
+ case 0: /* not a pad, ignore */
+ break;
}
}
+}
/*
- * Multi and Multi2 joysticks
+ * gc_timer() initiates reads of console pads data.
*/
- if (gc->pads[GC_MULTI] || gc->pads[GC_MULTI2]) {
+static void gc_timer(unsigned long private)
+{
+ struct gc *gc = (void *) private;
- gc_multi_read_packet(gc, gc->pads[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH, data);
+/*
+ * N64 pads - must be read first, any read confuses them for 200 us
+ */
- for (i = 0; i < 5; i++) {
+ if (gc->pads[GC_N64])
+ gc_n64_process_packet(gc);
- s = gc_status_bit[i];
+/*
+ * NES and SNES pads or mouse
+ */
- if (s & (gc->pads[GC_MULTI] | gc->pads[GC_MULTI2])) {
- input_report_abs(dev + i, ABS_X, !(s & data[2]) - !(s & data[3]));
- input_report_abs(dev + i, ABS_Y, !(s & data[0]) - !(s & data[1]));
- input_report_key(dev + i, BTN_TRIGGER, s & data[4]);
- }
+ if (gc->pads[GC_NES] || gc->pads[GC_SNES] || gc->pads[GC_SNESMOUSE])
+ gc_nes_process_packet(gc);
- if (s & gc->pads[GC_MULTI2])
- input_report_key(dev + i, BTN_THUMB, s & data[5]);
+/*
+ * Multi and Multi2 joysticks
+ */
- input_sync(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(dev + i, BTN_THUMBL, ~data_psx[i][0] & 0x04);
- input_report_key(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(dev + i, gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j));
- } else {
- for (j = 0; j < 4; j++)
- input_report_abs(dev + i, gc_psx_abs[j+2], data_psx[i][j + 2]);
-
- input_report_abs(dev + i, ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128);
- input_report_abs(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(dev + i, gc_psx_btn[j], ~data_psx[i][1] & (1 << j));
-
- input_report_key(dev + i, BTN_START, ~data_psx[i][0] & 0x08);
- input_report_key(dev + i, BTN_SELECT, ~data_psx[i][0] & 0x01);
-
- input_sync(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(dev + i, gc_psx_ddr_btn[j], ~data_psx[i][0] & (0x10 << j));
- } else {
- input_report_abs(dev + i, ABS_X, 128 + !(data_psx[i][0] & 0x20) * 127 - !(data_psx[i][0] & 0x80) * 128);
- input_report_abs(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(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(dev + i, gc_psx_btn[j], ~data_psx[i][1] & (1 << j));
-
- input_report_key(dev + i, BTN_START, ~data_psx[i][0] & 0x08);
- input_report_key(dev + i, BTN_SELECT, ~data_psx[i][0] & 0x01);
-
- input_sync(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);
}
static int gc_open(struct input_dev *dev)
{
struct gc *gc = dev->private;
+ int err;
+
+ err = mutex_lock_interruptible(&gc->mutex);
+ if (err)
+ return err;
+
if (!gc->used++) {
parport_claim(gc->pd);
parport_write_control(gc->pd->port, 0x04);
mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
}
+
+ mutex_unlock(&gc->mutex);
return 0;
}
static void gc_close(struct input_dev *dev)
{
struct gc *gc = dev->private;
+
+ mutex_lock(&gc->mutex);
if (!--gc->used) {
- del_timer(&gc->timer);
+ del_timer_sync(&gc->timer);
parport_write_control(gc->pd->port, 0x00);
parport_release(gc->pd);
}
+ mutex_unlock(&gc->mutex);
}
-static struct gc __init *gc_probe(int *config, int nargs)
+static int __init gc_setup_pad(struct gc *gc, int idx, int pad_type)
{
- struct gc *gc;
- struct parport *pp;
- int i, j;
-
- if (config[0] < 0)
- return NULL;
-
- if (nargs < 2) {
- printk(KERN_ERR "gamecon.c: at least one device must be specified\n");
- return NULL;
- }
-
- pp = parport_find_number(config[0]);
+ struct input_dev *input_dev;
+ int i;
- if (!pp) {
- printk(KERN_ERR "gamecon.c: no such parport\n");
- return NULL;
- }
+ if (!pad_type)
+ return 0;
- if (!(gc = kmalloc(sizeof(struct gc), GFP_KERNEL))) {
- parport_put_port(pp);
- return NULL;
+ if (pad_type < 1 || pad_type > GC_MAX) {
+ printk(KERN_WARNING "gamecon.c: Pad type %d unknown\n", pad_type);
+ return -EINVAL;
}
- memset(gc, 0, sizeof(struct gc));
-
- gc->pd = parport_register_device(pp, "gamecon", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
-
- parport_put_port(pp);
- if (!gc->pd) {
- printk(KERN_ERR "gamecon.c: parport busy already - lp.o loaded?\n");
- kfree(gc);
- return NULL;
+ gc->dev[idx] = input_dev = input_allocate_device();
+ if (!input_dev) {
+ printk(KERN_ERR "gamecon.c: Not enough memory for input device\n");
+ return -ENOMEM;
}
- parport_claim(gc->pd);
+ input_dev->name = gc_names[pad_type];
+ input_dev->phys = gc->phys[idx];
+ input_dev->id.bustype = BUS_PARPORT;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = pad_type;
+ input_dev->id.version = 0x0100;
+ input_dev->private = gc;
- init_timer(&gc->timer);
- gc->timer.data = (long) gc;
- gc->timer.function = gc_timer;
+ input_dev->open = gc_open;
+ input_dev->close = gc_close;
- for (i = 0; i < nargs - 1; i++) {
+ if (pad_type != GC_SNESMOUSE) {
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- if (!config[i + 1])
- continue;
+ 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);
- if (config[i + 1] < 1 || config[i + 1] > GC_MAX) {
- printk(KERN_WARNING "gamecon.c: Pad type %d unknown\n", config[i + 1]);
- continue;
- }
-
- gc->dev[i].private = gc;
- gc->dev[i].open = gc_open;
- gc->dev[i].close = gc_close;
-
- gc->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ gc->pads[0] |= gc_status_bit[idx];
+ gc->pads[pad_type] |= gc_status_bit[idx];
- for (j = 0; j < 2; j++) {
- set_bit(ABS_X + j, gc->dev[i].absbit);
- gc->dev[i].absmin[ABS_X + j] = -1;
- gc->dev[i].absmax[ABS_X + j] = 1;
- }
+ switch (pad_type) {
- gc->pads[0] |= gc_status_bit[i];
- gc->pads[config[i + 1]] |= gc_status_bit[i];
+ case GC_N64:
+ for (i = 0; i < 10; i++)
+ set_bit(gc_n64_btn[i], input_dev->keybit);
- switch(config[i + 1]) {
+ for (i = 0; i < 2; i++) {
+ input_set_abs_params(input_dev, ABS_X + i, -127, 126, 0, 2);
+ input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
+ }
- case GC_N64:
- for (j = 0; j < 10; j++)
- set_bit(gc_n64_btn[j], gc->dev[i].keybit);
+ 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);
+ case GC_NES:
+ for (i = 0; i < 4; i++)
+ set_bit(gc_snes_btn[i], input_dev->keybit);
+ break;
+
+ case GC_MULTI2:
+ set_bit(BTN_THUMB, input_dev->keybit);
+ case GC_MULTI:
+ set_bit(BTN_TRIGGER, input_dev->keybit);
+ break;
+
+ case GC_PSX:
+ for (i = 0; i < 6; i++)
+ input_set_abs_params(input_dev, gc_psx_abs[i], 4, 252, 0, 2);
+ for (i = 0; i < 12; i++)
+ set_bit(gc_psx_btn[i], input_dev->keybit);
+
+ break;
+
+ case GC_DDR:
+ for (i = 0; i < 4; i++)
+ set_bit(gc_psx_ddr_btn[i], input_dev->keybit);
+ for (i = 0; i < 12; i++)
+ set_bit(gc_psx_btn[i], input_dev->keybit);
+
+ break;
+ }
- for (j = 0; j < 2; j++) {
- set_bit(ABS_X + j, gc->dev[i].absbit);
- gc->dev[i].absmin[ABS_X + j] = -127;
- gc->dev[i].absmax[ABS_X + j] = 126;
- gc->dev[i].absflat[ABS_X + j] = 2;
- set_bit(ABS_HAT0X + j, gc->dev[i].absbit);
- gc->dev[i].absmin[ABS_HAT0X + j] = -1;
- gc->dev[i].absmax[ABS_HAT0X + j] = 1;
- }
+ return 0;
+}
- break;
+static struct gc __init *gc_probe(int parport, int *pads, int n_pads)
+{
+ struct gc *gc;
+ struct parport *pp;
+ struct pardevice *pd;
+ int i;
+ int err;
- case GC_SNES:
- for (j = 4; j < 8; j++)
- set_bit(gc_snes_btn[j], gc->dev[i].keybit);
- case GC_NES:
- for (j = 0; j < 4; j++)
- set_bit(gc_snes_btn[j], gc->dev[i].keybit);
- break;
+ pp = parport_find_number(parport);
+ if (!pp) {
+ printk(KERN_ERR "gamecon.c: no such parport\n");
+ err = -EINVAL;
+ goto err_out;
+ }
- case GC_MULTI2:
- set_bit(BTN_THUMB, gc->dev[i].keybit);
- case GC_MULTI:
- set_bit(BTN_TRIGGER, gc->dev[i].keybit);
- break;
+ pd = parport_register_device(pp, "gamecon", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
+ if (!pd) {
+ printk(KERN_ERR "gamecon.c: parport busy already - lp.o loaded?\n");
+ err = -EBUSY;
+ goto err_put_pp;
+ }
- case GC_PSX:
- case GC_DDR:
- if(config[i + 1] == GC_DDR) {
- for (j = 0; j < 4; j++)
- set_bit(gc_psx_ddr_btn[j], gc->dev[i].keybit);
- } else {
- for (j = 0; j < 6; j++) {
- set_bit(gc_psx_abs[j], gc->dev[i].absbit);
- gc->dev[i].absmin[gc_psx_abs[j]] = 4;
- gc->dev[i].absmax[gc_psx_abs[j]] = 252;
- gc->dev[i].absflat[gc_psx_abs[j]] = 2;
- }
- }
+ gc = kzalloc(sizeof(struct gc), GFP_KERNEL);
+ if (!gc) {
+ printk(KERN_ERR "gamecon.c: Not enough memory\n");
+ err = -ENOMEM;
+ goto err_unreg_pardev;
+ }
- for (j = 0; j < 12; j++)
- set_bit(gc_psx_btn[j], gc->dev[i].keybit);
+ mutex_init(&gc->mutex);
+ gc->pd = pd;
+ init_timer(&gc->timer);
+ gc->timer.data = (long) gc;
+ gc->timer.function = gc_timer;
- break;
- }
+ 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);
+ err = gc_setup_pad(gc, i, pads[i]);
+ if (err)
+ goto err_unreg_devs;
- gc->dev[i].name = gc_names[config[i + 1]];
- gc->dev[i].phys = gc->phys[i];
- gc->dev[i].id.bustype = BUS_PARPORT;
- gc->dev[i].id.vendor = 0x0001;
- gc->dev[i].id.product = config[i + 1];
- gc->dev[i].id.version = 0x0100;
+ err = input_register_device(gc->dev[i]);
+ if (err)
+ goto err_free_dev;
}
- parport_release(gc->pd);
-
if (!gc->pads[0]) {
- parport_unregister_device(gc->pd);
- kfree(gc);
- return NULL;
+ printk(KERN_ERR "gamecon.c: No valid devices specified\n");
+ err = -EINVAL;
+ goto err_free_gc;
}
- for (i = 0; i < 5; i++)
- if (gc->pads[0] & gc_status_bit[i]) {
- input_register_device(gc->dev + i);
- printk(KERN_INFO "input: %s on %s\n", gc->dev[i].name, gc->pd->port->name);
- }
-
+ parport_put_port(pp);
return gc;
+
+ err_free_dev:
+ input_free_device(gc->dev[i]);
+ err_unreg_devs:
+ while (--i >= 0)
+ if (gc->dev[i])
+ input_unregister_device(gc->dev[i]);
+ err_free_gc:
+ kfree(gc);
+ err_unreg_pardev:
+ parport_unregister_device(pd);
+ err_put_pp:
+ parport_put_port(pp);
+ err_out:
+ return ERR_PTR(err);
+}
+
+static void gc_remove(struct gc *gc)
+{
+ int i;
+
+ for (i = 0; i < GC_MAX_DEVICES; i++)
+ if (gc->dev[i])
+ input_unregister_device(gc->dev[i]);
+ parport_unregister_device(gc->pd);
+ kfree(gc);
}
static int __init gc_init(void)
{
- gc_base[0] = gc_probe(gc, gc_nargs);
- gc_base[1] = gc_probe(gc_2, gc_nargs_2);
- gc_base[2] = gc_probe(gc_3, gc_nargs_3);
+ int i;
+ int have_dev = 0;
+ int err = 0;
- if (gc_base[0] || gc_base[1] || gc_base[2])
- return 0;
+ for (i = 0; i < GC_MAX_PORTS; i++) {
+ if (gc[i].nargs == 0 || gc[i].args[0] < 0)
+ continue;
+
+ if (gc[i].nargs < 2) {
+ printk(KERN_ERR "gamecon.c: at least one device must be specified\n");
+ err = -EINVAL;
+ break;
+ }
+
+ gc_base[i] = gc_probe(gc[i].args[0], gc[i].args + 1, gc[i].nargs - 1);
+ if (IS_ERR(gc_base[i])) {
+ err = PTR_ERR(gc_base[i]);
+ break;
+ }
+
+ have_dev = 1;
+ }
+
+ if (err) {
+ while (--i >= 0)
+ if (gc_base[i])
+ gc_remove(gc_base[i]);
+ return err;
+ }
- return -ENODEV;
+ return have_dev ? 0 : -ENODEV;
}
static void __exit gc_exit(void)
{
- int i, j;
+ int i;
- for (i = 0; i < 3; i++)
- if (gc_base[i]) {
- for (j = 0; j < 5; j++)
- if (gc_base[i]->pads[0] & gc_status_bit[j])
- input_unregister_device(gc_base[i]->dev + j);
- parport_unregister_device(gc_base[i]->pd);
- }
+ for (i = 0; i < GC_MAX_PORTS; i++)
+ if (gc_base[i])
+ gc_remove(gc_base[i]);
}
module_init(gc_init);
git://git.onelab.eu / linux-2.6.git / blobdiff