summaryrefslogtreecommitdiffstats
path: root/drivers/input/joystick/gamecon.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/input/joystick/gamecon.c
downloadop-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/input/joystick/gamecon.c')
-rw-r--r--drivers/input/joystick/gamecon.c697
1 files changed, 697 insertions, 0 deletions
diff --git a/drivers/input/joystick/gamecon.c b/drivers/input/joystick/gamecon.c
new file mode 100644
index 0000000..8732f52
--- /dev/null
+++ b/drivers/input/joystick/gamecon.c
@@ -0,0 +1,697 @@
+/*
+ * 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>
+ *
+ * Based on the work of:
+ * Andree Borrmann John Dahlstrom
+ * David Kuder Nathan Hand
+ */
+
+/*
+ * 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
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/parport.h>
+#include <linux/input.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>)");
+
+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");
+
+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");
+
+__obsolete_setup("gc=");
+__obsolete_setup("gc_2=");
+__obsolete_setup("gc_3=");
+
+/* see also gs_psx_delay parameter in PSX support section */
+
+#define GC_SNES 1
+#define GC_NES 2
+#define GC_NES4 3
+#define GC_MULTI 4
+#define GC_MULTI2 5
+#define GC_N64 6
+#define GC_PSX 7
+#define GC_DDR 8
+
+#define GC_MAX 8
+
+#define GC_REFRESH_TIME HZ/100
+
+struct gc {
+ struct pardevice *pd;
+ struct input_dev dev[5];
+ struct timer_list timer;
+ unsigned char pads[GC_MAX + 1];
+ int used;
+ char phys[5][32];
+};
+
+static struct gc *gc_base[3];
+
+static int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 };
+
+static char *gc_names[] = { NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
+ "Multisystem 2-button joystick", "N64 controller", "PSX controller",
+ "PSX DDR controller" };
+/*
+ * N64 support.
+ */
+
+static unsigned char gc_n64_bytes[] = { 0, 1, 13, 15, 14, 12, 10, 11, 2, 3 };
+static short gc_n64_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_TRIGGER, BTN_START };
+
+#define GC_N64_LENGTH 32 /* N64 bit length, not including stop bit */
+#define GC_N64_REQUEST_LENGTH 37 /* transmit request sequence is 9 bits long */
+#define GC_N64_DELAY 133 /* delay between transmit request, and response ready (us) */
+#define GC_N64_REQUEST 0x1dd1111111ULL /* the request data command (encoded for 000000011) */
+#define GC_N64_DWS 3 /* delay between write segments (required for sound playback because of ISA DMA) */
+ /* GC_N64_DWS > 24 is known to fail */
+#define GC_N64_POWER_W 0xe2 /* power during write (transmit request) */
+#define GC_N64_POWER_R 0xfd /* power during read */
+#define GC_N64_OUT 0x1d /* output bits to the 4 pads */
+ /* Reading the main axes of any N64 pad is known to fail if the corresponding bit */
+ /* in GC_N64_OUT is pulled low on the output port (by any routine) for more */
+ /* than 123 us */
+#define GC_N64_CLOCK 0x02 /* clock bits for read */
+
+/*
+ * gc_n64_read_packet() reads an N64 packet.
+ * Each pad uses one bit per byte. So all pads connected to this port are read in parallel.
+ */
+
+static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
+{
+ int i;
+ unsigned long flags;
+
+/*
+ * Request the pad to transmit data
+ */
+
+ local_irq_save(flags);
+ for (i = 0; i < GC_N64_REQUEST_LENGTH; i++) {
+ parport_write_data(gc->pd->port, GC_N64_POWER_W | ((GC_N64_REQUEST >> i) & 1 ? GC_N64_OUT : 0));
+ udelay(GC_N64_DWS);
+ }
+ local_irq_restore(flags);
+
+/*
+ * Wait for the pad response to be loaded into the 33-bit register of the adapter
+ */
+
+ udelay(GC_N64_DELAY);
+
+/*
+ * Grab data (ignoring the last bit, which is a stop bit)
+ */
+
+ for (i = 0; i < GC_N64_LENGTH; i++) {
+ parport_write_data(gc->pd->port, GC_N64_POWER_R);
+ data[i] = parport_read_status(gc->pd->port);
+ parport_write_data(gc->pd->port, GC_N64_POWER_R | GC_N64_CLOCK);
+ }
+
+/*
+ * We must wait 200 ms here for the controller to reinitialize before the next read request.
+ * No worries as long as gc_read is polled less frequently than this.
+ */
+
+}
+
+/*
+ * 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_POWER 0xfc
+#define GC_NES_CLOCK 0x01
+#define GC_NES_LATCH 0x02
+
+static unsigned char gc_nes_bytes[] = { 0, 1, 2, 3 };
+static unsigned char gc_snes_bytes[] = { 8, 0, 2, 3, 9, 1, 10, 11 };
+static short gc_snes_btn[] = { BTN_A, BTN_B, BTN_SELECT, BTN_START, BTN_X, BTN_Y, BTN_TL, BTN_TR };
+
+/*
+ * gc_nes_read_packet() reads a NES/SNES packet.
+ * Each pad uses one bit per byte. So all pads connected to
+ * this port are read in parallel.
+ */
+
+static void gc_nes_read_packet(struct gc *gc, int length, unsigned char *data)
+{
+ int i;
+
+ parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK | GC_NES_LATCH);
+ udelay(GC_NES_DELAY * 2);
+ parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
+
+ for (i = 0; i < length; i++) {
+ udelay(GC_NES_DELAY);
+ parport_write_data(gc->pd->port, GC_NES_POWER);
+ data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
+ udelay(GC_NES_DELAY);
+ parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
+ }
+}
+
+/*
+ * Multisystem joystick support
+ */
+
+#define GC_MULTI_LENGTH 5 /* Multi system joystick packet length is 5 */
+#define GC_MULTI2_LENGTH 6 /* One more bit for one more button */
+
+/*
+ * gc_multi_read_packet() reads a Multisystem joystick packet.
+ */
+
+static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data)
+{
+ int i;
+
+ for (i = 0; i < length; i++) {
+ parport_write_data(gc->pd->port, ~(1 << i));
+ data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
+ }
+}
+
+/*
+ * PSX support
+ *
+ * See documentation at:
+ * http://www.dim.com/~mackys/psxmemcard/ps-eng2.txt
+ * http://www.gamesx.com/controldata/psxcont/psxcont.htm
+ * ftp://milano.usal.es/pablo/
+ *
+ */
+
+#define GC_PSX_DELAY 25 /* 25 usec */
+#define GC_PSX_LENGTH 8 /* talk to the controller in bits */
+#define GC_PSX_BYTES 6 /* the maximum number of bytes to read off the controller */
+
+#define GC_PSX_MOUSE 1 /* Mouse */
+#define GC_PSX_NEGCON 2 /* NegCon */
+#define GC_PSX_NORMAL 4 /* Digital / Analog or Rumble in Digital mode */
+#define GC_PSX_ANALOG 5 /* Analog in Analog mode / Rumble in Green mode */
+#define GC_PSX_RUMBLE 7 /* Rumble in Red mode */
+
+#define GC_PSX_CLOCK 0x04 /* Pin 4 */
+#define GC_PSX_COMMAND 0x01 /* Pin 2 */
+#define GC_PSX_POWER 0xf8 /* Pins 5-9 */
+#define GC_PSX_SELECT 0x02 /* Pin 3 */
+
+#define GC_PSX_ID(x) ((x) >> 4) /* High nibble is device type */
+#define GC_PSX_LEN(x) (((x) & 0xf) << 1) /* Low nibble is length in bytes/2 */
+
+static int gc_psx_delay = GC_PSX_DELAY;
+module_param_named(psx_delay, gc_psx_delay, uint, 0);
+MODULE_PARM_DESC(psx_delay, "Delay when accessing Sony PSX controller (usecs)");
+
+__obsolete_setup("gc_psx_delay=");
+
+static short gc_psx_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y };
+static short gc_psx_btn[] = { BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y,
+ BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR };
+static short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 };
+
+/*
+ * gc_psx_command() writes 8bit command and reads 8bit data from
+ * the psx pad.
+ */
+
+static void gc_psx_command(struct gc *gc, int b, unsigned char data[5])
+{
+ int i, j, cmd, read;
+ for (i = 0; i < 5; i++)
+ data[i] = 0;
+
+ for (i = 0; i < GC_PSX_LENGTH; i++, b >>= 1) {
+ cmd = (b & 1) ? GC_PSX_COMMAND : 0;
+ 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++)
+ 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);
+ }
+}
+
+/*
+ * gc_psx_read_packet() reads a whole psx packet and returns
+ * device identifier code.
+ */
+
+static void gc_psx_read_packet(struct gc *gc, unsigned char data[5][GC_PSX_BYTES], unsigned char id[5])
+{
+ int i, j, max_len = 0;
+ unsigned long flags;
+ unsigned char data2[5];
+
+ parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER); /* Select pad */
+ udelay(gc_psx_delay);
+ parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER); /* Deselect, begin command */
+ udelay(gc_psx_delay);
+
+ local_irq_save(flags);
+
+ gc_psx_command(gc, 0x01, data2); /* Access pad */
+ 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 */
+ 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))
+ max_len = GC_PSX_LEN(id[i]);
+
+ for (i = 0; i < max_len; i++) { /* Read in all the data */
+ gc_psx_command(gc, 0, data2);
+ for (j = 0; j < 5; j++)
+ data[j][i] = data2[j];
+ }
+
+ local_irq_restore(flags);
+
+ 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 */
+ 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)
+{
+ 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
+ */
+
+ if (gc->pads[GC_N64]) {
+
+ gc_n64_read_packet(gc, data);
+
+ for (i = 0; i < 5; i++) {
+
+ s = gc_status_bit[i];
+
+ if (s & gc->pads[GC_N64] & ~(data[8] | data[9])) {
+
+ signed char axes[2];
+ 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 + i, ABS_X, axes[0]);
+ input_report_abs(dev + i, ABS_Y, -axes[1]);
+
+ 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]));
+
+ for (j = 0; j < 10; j++)
+ input_report_key(dev + i, gc_n64_btn[j], s & data[gc_n64_bytes[j]]);
+
+ input_sync(dev + i);
+ }
+ }
+ }
+
+/*
+ * NES and SNES pads
+ */
+
+ 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];
+
+ 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]));
+ }
+
+ 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]]);
+
+ 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]]);
+
+ input_sync(dev + i);
+ }
+ }
+
+/*
+ * 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(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 (s & gc->pads[GC_MULTI2])
+ input_report_key(dev + i, BTN_THUMB, s & data[5]);
+
+ input_sync(dev + i);
+ }
+ }
+
+/*
+ * 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;
+ }
+ }
+ }
+
+ mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
+}
+
+static int gc_open(struct input_dev *dev)
+{
+ struct gc *gc = dev->private;
+ if (!gc->used++) {
+ parport_claim(gc->pd);
+ parport_write_control(gc->pd->port, 0x04);
+ mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
+ }
+ return 0;
+}
+
+static void gc_close(struct input_dev *dev)
+{
+ struct gc *gc = dev->private;
+ if (!--gc->used) {
+ del_timer(&gc->timer);
+ parport_write_control(gc->pd->port, 0x00);
+ parport_release(gc->pd);
+ }
+}
+
+static struct gc __init *gc_probe(int *config, int nargs)
+{
+ 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]);
+
+ if (!pp) {
+ printk(KERN_ERR "gamecon.c: no such parport\n");
+ return NULL;
+ }
+
+ if (!(gc = kmalloc(sizeof(struct gc), GFP_KERNEL))) {
+ parport_put_port(pp);
+ return NULL;
+ }
+ 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;
+ }
+
+ parport_claim(gc->pd);
+
+ init_timer(&gc->timer);
+ gc->timer.data = (long) gc;
+ gc->timer.function = gc_timer;
+
+ for (i = 0; i < nargs - 1; i++) {
+
+ if (!config[i + 1])
+ continue;
+
+ 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);
+
+ 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;
+ }
+
+ gc->pads[0] |= gc_status_bit[i];
+ gc->pads[config[i + 1]] |= gc_status_bit[i];
+
+ switch(config[i + 1]) {
+
+ case GC_N64:
+ for (j = 0; j < 10; j++)
+ set_bit(gc_n64_btn[j], gc->dev[i].keybit);
+
+ 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;
+ }
+
+ break;
+
+ 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;
+
+ case GC_MULTI2:
+ set_bit(BTN_THUMB, gc->dev[i].keybit);
+ case GC_MULTI:
+ set_bit(BTN_TRIGGER, gc->dev[i].keybit);
+ break;
+
+ 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;
+ }
+ }
+
+ for (j = 0; j < 12; j++)
+ set_bit(gc_psx_btn[j], gc->dev[i].keybit);
+
+ break;
+ }
+
+ sprintf(gc->phys[i], "%s/input%d", gc->pd->port->name, i);
+
+ 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;
+ }
+
+ parport_release(gc->pd);
+
+ if (!gc->pads[0]) {
+ parport_unregister_device(gc->pd);
+ kfree(gc);
+ return NULL;
+ }
+
+ 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);
+ }
+
+ return 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);
+
+ if (gc_base[0] || gc_base[1] || gc_base[2])
+ return 0;
+
+ return -ENODEV;
+}
+
+static void __exit gc_exit(void)
+{
+ int i, j;
+
+ 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);
+ }
+}
+
+module_init(gc_init);
+module_exit(gc_exit);
OpenPOWER on IntegriCloud