/*
- * $Id: gamecon.c,v 1.22 2002/07/01 15:42:25 vojtech Exp $
+ * NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux
*
- * Copyright (c) 1999-2001 Vojtech Pavlik
+ * 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
*/
-/*
- * NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux
- */
-
/*
* 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
#define GC_MULTI2 5
#define GC_N64 6
#define GC_PSX 7
+#define GC_DDR 8
-#define GC_MAX 7
+#define GC_MAX 8
#define GC_REFRESH_TIME HZ/100
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" };
+ "Multisystem 2-button joystick", "N64 controller", "PSX controller"
+ "PSX DDR controller" };
/*
* N64 support.
*/
#define GC_PSX_RUMBLE 7 /* Rumble in Red mode */
#define GC_PSX_CLOCK 0x04 /* Pin 4 */
-#define GC_PSX_COMMAND 0x01 /* Pin 1 */
+#define GC_PSX_COMMAND 0x01 /* Pin 2 */
#define GC_PSX_POWER 0xf8 /* Pins 5-9 */
#define GC_PSX_SELECT 0x02 /* Pin 3 */
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 int gc_psx_command(struct gc *gc, int b)
+static void gc_psx_command(struct gc *gc, int b, unsigned char data[GC_PSX_LENGTH])
{
- int i, cmd, data = 0;
+ int i, j, cmd, read;
+ for (i = 0; i < 5; i++)
+ data[i] = 0;
for (i = 0; i < 8; i++, b >>= 1) {
cmd = (b & 1) ? GC_PSX_COMMAND : 0;
parport_write_data(gc->pd->port, cmd | GC_PSX_POWER);
udelay(gc_psx_delay);
- data |= ((parport_read_status(gc->pd->port) ^ 0x80) & gc->pads[GC_PSX]) ? (1 << i) : 0;
+ 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]) ? (1 << i) : 0;
parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER);
udelay(gc_psx_delay);
}
- return data;
}
/*
* device identifier code.
*/
-static int gc_psx_read_packet(struct gc *gc, unsigned char *data)
+static void gc_psx_read_packet(struct gc *gc, unsigned char data[5][GC_PSX_LENGTH], unsigned char id[5])
{
- int i, id;
+ 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 * 2);
+ udelay(gc_psx_delay);
parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER); /* Deselect, begin command */
- udelay(gc_psx_delay * 2);
+ udelay(gc_psx_delay);
local_irq_save(flags);
- gc_psx_command(gc, 0x01); /* Access pad */
- id = gc_psx_command(gc, 0x42); /* Get device id */
- if (gc_psx_command(gc, 0) == 0x5a) { /* Okay? */
- for (i = 0; i < GC_PSX_LEN(id) * 2; i++)
- data[i] = gc_psx_command(gc, 0);
- } else id = 0;
+ 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_PSX_LEN(id[i]) > max_len))
+ max_len = GC_PSX_LEN(id[i]);
+
+ for (i = 0; i < max_len * 2; 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);
- return GC_PSX_ID(id);
+ for(i = 0; i < 5; i++) /* Set id's to the real value */
+ id[i] = GC_PSX_ID(id[i]);
}
/*
struct gc *gc = (void *) private;
struct input_dev *dev = gc->dev;
unsigned char data[GC_MAX_LENGTH];
+ unsigned char data_psx[5][GC_PSX_LENGTH];
int i, j, s;
/*
* PSX controllers
*/
- if (gc->pads[GC_PSX]) {
+ if (gc->pads[GC_PSX] || gc->pads[GC_DDR]) {
- for (i = 0; i < 5; i++)
- if (gc->pads[GC_PSX] & gc_status_bit[i])
- break;
+ gc_psx_read_packet(gc, data_psx, data);
- switch (gc_psx_read_packet(gc, data)) {
+ for (i = 0; i < 5; i++) {
+ switch (data[i]) {
- case GC_PSX_RUMBLE:
+ case GC_PSX_RUMBLE:
- input_report_key(dev + i, BTN_THUMBL, ~data[0] & 0x04);
- input_report_key(dev + i, BTN_THUMBR, ~data[0] & 0x02);
- input_sync(dev + i);
+ 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:
+ case GC_PSX_NEGCON:
+ case GC_PSX_ANALOG:
- for (j = 0; j < 4; j++)
- input_report_abs(dev + i, gc_psx_abs[j], data[j + 2]);
+ 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_HAT0X, !(data[0] & 0x20) - !(data[0] & 0x80));
- input_report_abs(dev + i, ABS_HAT0Y, !(data[0] & 0x40) - !(data[0] & 0x10));
+ 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[1] & (1 << j));
+ 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[0] & 0x08);
- input_report_key(dev + i, BTN_SELECT, ~data[0] & 0x01);
+ 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);
+ input_sync(dev + i);
- break;
+ break;
- case GC_PSX_NORMAL:
+ 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);
- input_report_abs(dev + i, ABS_X, 128 + !(data[0] & 0x20) * 127 - !(data[0] & 0x80) * 128);
- input_report_abs(dev + i, ABS_Y, 128 + !(data[0] & 0x40) * 127 - !(data[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[1] & (1 << j));
+ 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[0] & 0x08);
- input_report_key(dev + i, BTN_SELECT, ~data[0] & 0x01);
+ 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);
+ input_sync(dev + i);
- break;
+ break;
+
+ case 0: /* not a pad, ignore */
+ break;
+ }
}
}
{
struct gc *gc;
struct parport *pp;
- int i, j, psx;
- unsigned char data[32];
+ int i, j;
if (config[0] < 0)
return NULL;
break;
case GC_PSX:
-
- psx = gc_psx_read_packet(gc, data);
-
- switch(psx) {
- case GC_PSX_NEGCON:
- case GC_PSX_NORMAL:
- case GC_PSX_ANALOG:
- case GC_PSX_RUMBLE:
-
- for (j = 0; j < 6; j++) {
- psx = gc_psx_abs[j];
- set_bit(psx, gc->dev[i].absbit);
- if (j < 4) {
- gc->dev[i].absmin[psx] = 4;
- gc->dev[i].absmax[psx] = 252;
- gc->dev[i].absflat[psx] = 2;
- } else {
- gc->dev[i].absmin[psx] = -1;
- gc->dev[i].absmax[psx] = 1;
- }
- }
-
- for (j = 0; j < 12; j++)
- set_bit(gc_psx_btn[j], gc->dev[i].keybit);
-
- break;
-
- case 0:
- gc->pads[GC_PSX] &= ~gc_status_bit[i];
- printk(KERN_ERR "gamecon.c: No PSX controller found.\n");
- break;
-
- default:
- gc->pads[GC_PSX] &= ~gc_status_bit[i];
- printk(KERN_WARNING "gamecon.c: Unsupported PSX controller %#x,"
- " please report to <vojtech@ucw.cz>.\n", 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;
}
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