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!

1 files changed, 772 insertions, 0 deletions

diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c
new file mode 100644
index 000000000000..504b7d550567
--- /dev/null
+++ b/drivers/input/joystick/analog.c
@@ -0,0 +1,772 @@
+/*
+ * $Id: analog.c,v 1.68 2002/01/22 20:18:32 vojtech Exp $
+ *
+ *  Copyright (c) 1996-2001 Vojtech Pavlik
+ */
+
+/*
+ * Analog joystick and 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
+ * 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/config.h>
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/gameport.h>
+#include <asm/timex.h>
+
+#define DRIVER_DESC     "Analog joystick and gamepad driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Option parsing.
+ */
+
+#define ANALOG_PORTS            16
+
+static char *js[ANALOG_PORTS];
+static int js_nargs;
+static int analog_options[ANALOG_PORTS];
+module_param_array_named(map, js, charp, &js_nargs, 0);
+MODULE_PARM_DESC(map, "Describes analog joysticks type/capabilities");
+
+__obsolete_setup("js=");
+
+/*
+ * Times, feature definitions.
+ */
+
+#define ANALOG_RUDDER           0x00004
+#define ANALOG_THROTTLE         0x00008
+#define ANALOG_AXES_STD         0x0000f
+#define ANALOG_BTNS_STD         0x000f0
+
+#define ANALOG_BTNS_CHF         0x00100
+#define ANALOG_HAT1_CHF         0x00200
+#define ANALOG_HAT2_CHF         0x00400
+#define ANALOG_HAT_FCS          0x00800
+#define ANALOG_HATS_ALL         0x00e00
+#define ANALOG_BTN_TL           0x01000
+#define ANALOG_BTN_TR           0x02000
+#define ANALOG_BTN_TL2          0x04000
+#define ANALOG_BTN_TR2          0x08000
+#define ANALOG_BTNS_TLR         0x03000
+#define ANALOG_BTNS_TLR2        0x0c000
+#define ANALOG_BTNS_GAMEPAD     0x0f000
+
+#define ANALOG_HBTN_CHF         0x10000
+#define ANALOG_ANY_CHF          0x10700
+#define ANALOG_SAITEK           0x20000
+#define ANALOG_EXTENSIONS       0x7ff00
+#define ANALOG_GAMEPAD          0x80000
+
+#define ANALOG_MAX_TIME         3       /* 3 ms */
+#define ANALOG_LOOP_TIME        2000    /* 2 * loop */
+#define ANALOG_SAITEK_DELAY     200     /* 200 us */
+#define ANALOG_SAITEK_TIME      2000    /* 2000 us */
+#define ANALOG_AXIS_TIME        2       /* 2 * refresh */
+#define ANALOG_INIT_RETRIES     8       /* 8 times */
+#define ANALOG_FUZZ_BITS        2       /* 2 bit more */
+#define ANALOG_FUZZ_MAGIC       36      /* 36 u*ms/loop */
+
+#define ANALOG_MAX_NAME_LENGTH  128
+#define ANALOG_MAX_PHYS_LENGTH  32
+
+static short analog_axes[] = { ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE };
+static short analog_hats[] = { ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y, ABS_HAT2X, ABS_HAT2Y };
+static short analog_pads[] = { BTN_Y, BTN_Z, BTN_TL, BTN_TR };
+static short analog_exts[] = { ANALOG_HAT1_CHF, ANALOG_HAT2_CHF, ANALOG_HAT_FCS };
+static short analog_pad_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_TL2, BTN_TR2, BTN_SELECT, BTN_START, BTN_MODE, BTN_BASE };
+static short analog_joy_btn[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2,
+                                  BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_BASE6 };
+
+static unsigned char analog_chf[] = { 0xf, 0x0, 0x1, 0x9, 0x2, 0x4, 0xc, 0x8, 0x3, 0x5, 0xb, 0x7, 0xd, 0xe, 0xa, 0x6 };
+
+struct analog {
+        struct input_dev dev;
+        int mask;
+        short *buttons;
+        char name[ANALOG_MAX_NAME_LENGTH];
+        char phys[ANALOG_MAX_PHYS_LENGTH];
+};
+
+struct analog_port {
+        struct gameport *gameport;
+        struct analog analog[2];
+        unsigned char mask;
+        char saitek;
+        char cooked;
+        int bads;
+        int reads;
+        int speed;
+        int loop;
+        int fuzz;
+        int axes[4];
+        int buttons;
+        int initial[4];
+        int axtime;
+};
+
+/*
+ * Time macros.
+ */
+
+#ifdef __i386__
+#define GET_TIME(x)     do { if (cpu_has_tsc) rdtscl(x); else x = get_time_pit(); } while (0)
+#define DELTA(x,y)      (cpu_has_tsc ? ((y) - (x)) : ((x) - (y) + ((x) < (y) ? CLOCK_TICK_RATE / HZ : 0)))
+#define TIME_NAME       (cpu_has_tsc?"TSC":"PIT")
+static unsigned int get_time_pit(void)
+{
+        extern spinlock_t i8253_lock;
+        unsigned long flags;
+        unsigned int count;
+
+        spin_lock_irqsave(&i8253_lock, flags);
+        outb_p(0x00, 0x43);
+        count = inb_p(0x40);
+        count |= inb_p(0x40) << 8;
+        spin_unlock_irqrestore(&i8253_lock, flags);
+
+        return count;
+}
+#elif defined(__x86_64__)
+#define GET_TIME(x)     rdtscl(x)
+#define DELTA(x,y)      ((y)-(x))
+#define TIME_NAME       "TSC"
+#elif defined(__alpha__)
+#define GET_TIME(x)     do { x = get_cycles(); } while (0)
+#define DELTA(x,y)      ((y)-(x))
+#define TIME_NAME       "PCC"
+#else
+#define FAKE_TIME
+static unsigned long analog_faketime = 0;
+#define GET_TIME(x)     do { x = analog_faketime++; } while(0)
+#define DELTA(x,y)      ((y)-(x))
+#define TIME_NAME       "Unreliable"
+#warning Precise timer not defined for this architecture.
+#endif
+
+/*
+ * analog_decode() decodes analog joystick data and reports input events.
+ */
+
+static void analog_decode(struct analog *analog, int *axes, int *initial, int buttons)
+{
+        struct input_dev *dev = &analog->dev;
+        int i, j;
+
+        if (analog->mask & ANALOG_HAT_FCS)
+                for (i = 0; i < 4; i++)
+                        if (axes[3] < ((initial[3] * ((i << 1) + 1)) >> 3)) {
+                                buttons |= 1 << (i + 14);
+                                break;
+                        }
+
+        for (i = j = 0; i < 6; i++)
+                if (analog->mask & (0x10 << i))
+                        input_report_key(dev, analog->buttons[j++], (buttons >> i) & 1);
+
+        if (analog->mask & ANALOG_HBTN_CHF)
+                for (i = 0; i < 4; i++)
+                        input_report_key(dev, analog->buttons[j++], (buttons >> (i + 10)) & 1);
+
+        if (analog->mask & ANALOG_BTN_TL)
+                input_report_key(dev, analog_pads[0], axes[2] < (initial[2] >> 1));
+        if (analog->mask & ANALOG_BTN_TR)
+                input_report_key(dev, analog_pads[1], axes[3] < (initial[3] >> 1));
+        if (analog->mask & ANALOG_BTN_TL2)
+                input_report_key(dev, analog_pads[2], axes[2] > (initial[2] + (initial[2] >> 1)));
+        if (analog->mask & ANALOG_BTN_TR2)
+                input_report_key(dev, analog_pads[3], axes[3] > (initial[3] + (initial[3] >> 1)));
+
+        for (i = j = 0; i < 4; i++)
+                if (analog->mask & (1 << i))
+                        input_report_abs(dev, analog_axes[j++], axes[i]);
+
+        for (i = j = 0; i < 3; i++)
+                if (analog->mask & analog_exts[i]) {
+                        input_report_abs(dev, analog_hats[j++],
+                                ((buttons >> ((i << 2) + 7)) & 1) - ((buttons >> ((i << 2) + 9)) & 1));
+                        input_report_abs(dev, analog_hats[j++],
+                                ((buttons >> ((i << 2) + 8)) & 1) - ((buttons >> ((i << 2) + 6)) & 1));
+                }
+
+        input_sync(dev);
+}
+
+/*
+ * analog_cooked_read() reads analog joystick data.
+ */
+
+static int analog_cooked_read(struct analog_port *port)
+{
+        struct gameport *gameport = port->gameport;
+        unsigned int time[4], start, loop, now, loopout, timeout;
+        unsigned char data[4], this, last;
+        unsigned long flags;
+        int i, j;
+
+        loopout = (ANALOG_LOOP_TIME * port->loop) / 1000;
+        timeout = ANALOG_MAX_TIME * port->speed;
+
+        local_irq_save(flags);
+        gameport_trigger(gameport);
+        GET_TIME(now);
+        local_irq_restore(flags);
+
+        start = now;
+        this = port->mask;
+        i = 0;
+
+        do {
+                loop = now;
+                last = this;
+
+                local_irq_disable();
+                this = gameport_read(gameport) & port->mask;
+                GET_TIME(now);
+                local_irq_restore(flags);
+
+                if ((last ^ this) && (DELTA(loop, now) < loopout)) {
+                        data[i] = last ^ this;
+                        time[i] = now;
+                        i++;
+                }
+
+        } while (this && (i < 4) && (DELTA(start, now) < timeout));
+
+        this <<= 4;
+
+        for (--i; i >= 0; i--) {
+                this |= data[i];
+                for (j = 0; j < 4; j++)
+                        if (data[i] & (1 << j))
+                                port->axes[j] = (DELTA(start, time[i]) << ANALOG_FUZZ_BITS) / port->loop;
+        }
+
+        return -(this != port->mask);
+}
+
+static int analog_button_read(struct analog_port *port, char saitek, char chf)
+{
+        unsigned char u;
+        int t = 1, i = 0;
+        int strobe = gameport_time(port->gameport, ANALOG_SAITEK_TIME);
+
+        u = gameport_read(port->gameport);
+
+        if (!chf) {
+                port->buttons = (~u >> 4) & 0xf;
+                return 0;
+        }
+
+        port->buttons = 0;
+
+        while ((~u & 0xf0) && (i < 16) && t) {
+                port->buttons |= 1 << analog_chf[(~u >> 4) & 0xf];
+                if (!saitek) return 0;
+                udelay(ANALOG_SAITEK_DELAY);
+                t = strobe;
+                gameport_trigger(port->gameport);
+                while (((u = gameport_read(port->gameport)) & port->mask) && t) t--;
+                i++;
+        }
+
+        return -(!t || (i == 16));
+}
+
+/*
+ * analog_poll() repeatedly polls the Analog joysticks.
+ */
+
+static void analog_poll(struct gameport *gameport)
+{
+        struct analog_port *port = gameport_get_drvdata(gameport);
+        int i;
+
+        char saitek = !!(port->analog[0].mask & ANALOG_SAITEK);
+        char chf = !!(port->analog[0].mask & ANALOG_ANY_CHF);
+
+        if (port->cooked) {
+                port->bads -= gameport_cooked_read(port->gameport, port->axes, &port->buttons);
+                if (chf)
+                        port->buttons = port->buttons ? (1 << analog_chf[port->buttons]) : 0;
+                port->reads++;
+        } else {
+                if (!port->axtime--) {
+                        port->bads -= analog_cooked_read(port);
+                        port->bads -= analog_button_read(port, saitek, chf);
+                        port->reads++;
+                        port->axtime = ANALOG_AXIS_TIME - 1;
+                } else {
+                        if (!saitek)
+                                analog_button_read(port, saitek, chf);
+                }
+        }
+
+        for (i = 0; i < 2; i++)
+                if (port->analog[i].mask)
+                        analog_decode(port->analog + i, port->axes, port->initial, port->buttons);
+}
+
+/*
+ * analog_open() is a callback from the input open routine.
+ */
+
+static int analog_open(struct input_dev *dev)
+{
+        struct analog_port *port = dev->private;
+
+        gameport_start_polling(port->gameport);
+        return 0;
+}
+
+/*
+ * analog_close() is a callback from the input close routine.
+ */
+
+static void analog_close(struct input_dev *dev)
+{
+        struct analog_port *port = dev->private;
+
+        gameport_stop_polling(port->gameport);
+}
+
+/*
+ * analog_calibrate_timer() calibrates the timer and computes loop
+ * and timeout values for a joystick port.
+ */
+
+static void analog_calibrate_timer(struct analog_port *port)
+{
+        struct gameport *gameport = port->gameport;
+        unsigned int i, t, tx, t1, t2, t3;
+        unsigned long flags;
+
+        local_irq_save(flags);
+        GET_TIME(t1);
+#ifdef FAKE_TIME
+        analog_faketime += 830;
+#endif
+        mdelay(1);
+        GET_TIME(t2);
+        GET_TIME(t3);
+        local_irq_restore(flags);
+
+        port->speed = DELTA(t1, t2) - DELTA(t2, t3);
+
+        tx = ~0;
+
+        for (i = 0; i < 50; i++) {
+                local_irq_save(flags);
+                GET_TIME(t1);
+                for (t = 0; t < 50; t++) { gameport_read(gameport); GET_TIME(t2); }
+                GET_TIME(t3);
+                local_irq_restore(flags);
+                udelay(i);
+                t = DELTA(t1, t2) - DELTA(t2, t3);
+                if (t < tx) tx = t;
+        }
+
+        port->loop = tx / 50;
+}
+
+/*
+ * analog_name() constructs a name for an analog joystick.
+ */
+
+static void analog_name(struct analog *analog)
+{
+        sprintf(analog->name, "Analog %d-axis %d-button",
+                hweight8(analog->mask & ANALOG_AXES_STD),
+                hweight8(analog->mask & ANALOG_BTNS_STD) + !!(analog->mask & ANALOG_BTNS_CHF) * 2 +
+                hweight16(analog->mask & ANALOG_BTNS_GAMEPAD) + !!(analog->mask & ANALOG_HBTN_CHF) * 4);
+
+        if (analog->mask & ANALOG_HATS_ALL)
+                sprintf(analog->name, "%s %d-hat",
+                        analog->name, hweight16(analog->mask & ANALOG_HATS_ALL));
+
+        if (analog->mask & ANALOG_HAT_FCS)
+                        strcat(analog->name, " FCS");
+        if (analog->mask & ANALOG_ANY_CHF)
+                        strcat(analog->name, (analog->mask & ANALOG_SAITEK) ? " Saitek" : " CHF");
+
+        strcat(analog->name, (analog->mask & ANALOG_GAMEPAD) ? " gamepad": " joystick");
+}
+
+/*
+ * analog_init_device()
+ */
+
+static void analog_init_device(struct analog_port *port, struct analog *analog, int index)
+{
+        int i, j, t, v, w, x, y, z;
+
+        analog_name(analog);
+        sprintf(analog->phys, "%s/input%d", port->gameport->phys, index);
+        analog->buttons = (analog->mask & ANALOG_GAMEPAD) ? analog_pad_btn : analog_joy_btn;
+
+        init_input_dev(&analog->dev);
+
+        analog->dev.name = analog->name;
+        analog->dev.phys = analog->phys;
+        analog->dev.id.bustype = BUS_GAMEPORT;
+        analog->dev.id.vendor = GAMEPORT_ID_VENDOR_ANALOG;
+        analog->dev.id.product = analog->mask >> 4;
+        analog->dev.id.version = 0x0100;
+
+        analog->dev.open = analog_open;
+        analog->dev.close = analog_close;
+        analog->dev.private = port;
+        analog->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+
+        for (i = j = 0; i < 4; i++)
+                if (analog->mask & (1 << i)) {
+
+                        t = analog_axes[j];
+                        x = port->axes[i];
+                        y = (port->axes[0] + port->axes[1]) >> 1;
+                        z = y - port->axes[i];
+                        z = z > 0 ? z : -z;
+                        v = (x >> 3);
+                        w = (x >> 3);
+
+                        set_bit(t, analog->dev.absbit);
+
+                        if ((i == 2 || i == 3) && (j == 2 || j == 3) && (z > (y >> 3)))
+                                x = y;
+
+                        if (analog->mask & ANALOG_SAITEK) {
+                                if (i == 2) x = port->axes[i];
+                                v = x - (x >> 2);
+                                w = (x >> 4);
+                        }
+
+                        analog->dev.absmax[t] = (x << 1) - v;
+                        analog->dev.absmin[t] = v;
+                        analog->dev.absfuzz[t] = port->fuzz;
+                        analog->dev.absflat[t] = w;
+
+                        j++;
+                }
+
+        for (i = j = 0; i < 3; i++)
+                if (analog->mask & analog_exts[i])
+                        for (x = 0; x < 2; x++) {
+                                t = analog_hats[j++];
+                                set_bit(t, analog->dev.absbit);
+                                analog->dev.absmax[t] = 1;
+                                analog->dev.absmin[t] = -1;
+                        }
+
+        for (i = j = 0; i < 4; i++)
+                if (analog->mask & (0x10 << i))
+                        set_bit(analog->buttons[j++], analog->dev.keybit);
+
+        if (analog->mask & ANALOG_BTNS_CHF)
+                for (i = 0; i < 2; i++)
+                        set_bit(analog->buttons[j++], analog->dev.keybit);
+
+        if (analog->mask & ANALOG_HBTN_CHF)
+                for (i = 0; i < 4; i++)
+                        set_bit(analog->buttons[j++], analog->dev.keybit);
+
+        for (i = 0; i < 4; i++)
+                if (analog->mask & (ANALOG_BTN_TL << i))
+                        set_bit(analog_pads[i], analog->dev.keybit);
+
+        analog_decode(analog, port->axes, port->initial, port->buttons);
+
+        input_register_device(&analog->dev);
+
+        printk(KERN_INFO "input: %s at %s", analog->name, port->gameport->phys);
+
+        if (port->cooked)
+                printk(" [ADC port]\n");
+        else
+                printk(" [%s timer, %d %sHz clock, %d ns res]\n", TIME_NAME,
+                port->speed > 10000 ? (port->speed + 800) / 1000 : port->speed,
+                port->speed > 10000 ? "M" : "k",
+                port->speed > 10000 ? (port->loop * 1000) / (port->speed / 1000)
+                                    : (port->loop * 1000000) / port->speed);
+}
+
+/*
+ * analog_init_devices() sets up device-specific values and registers the input devices.
+ */
+
+static int analog_init_masks(struct analog_port *port)
+{
+        int i;
+        struct analog *analog = port->analog;
+        int max[4];
+
+        if (!port->mask)
+                return -1;
+
+        if ((port->mask & 3) != 3 && port->mask != 0xc) {
+                printk(KERN_WARNING "analog.c: Unknown joystick device found  "
+                        "(data=%#x, %s), probably not analog joystick.\n",
+                        port->mask, port->gameport->phys);
+                return -1;
+        }
+
+
+        i = analog_options[0]; /* FIXME !!! - need to specify options for different ports */
+
+        analog[0].mask = i & 0xfffff;
+
+        analog[0].mask &= ~(ANALOG_AXES_STD | ANALOG_HAT_FCS | ANALOG_BTNS_GAMEPAD)
+                        | port->mask | ((port->mask << 8) & ANALOG_HAT_FCS)
+                        | ((port->mask << 10) & ANALOG_BTNS_TLR) | ((port->mask << 12) & ANALOG_BTNS_TLR2);
+
+        analog[0].mask &= ~(ANALOG_HAT2_CHF)
+                        | ((analog[0].mask & ANALOG_HBTN_CHF) ? 0 : ANALOG_HAT2_CHF);
+
+        analog[0].mask &= ~(ANALOG_THROTTLE | ANALOG_BTN_TR | ANALOG_BTN_TR2)
+                        | ((~analog[0].mask & ANALOG_HAT_FCS) >> 8)
+                        | ((~analog[0].mask & ANALOG_HAT_FCS) << 2)
+                        | ((~analog[0].mask & ANALOG_HAT_FCS) << 4);
+
+        analog[0].mask &= ~(ANALOG_THROTTLE | ANALOG_RUDDER)
+                        | (((~analog[0].mask & ANALOG_BTNS_TLR ) >> 10)
+                        &  ((~analog[0].mask & ANALOG_BTNS_TLR2) >> 12));
+
+        analog[1].mask = ((i >> 20) & 0xff) | ((i >> 12) & 0xf0000);
+
+        analog[1].mask &= (analog[0].mask & ANALOG_EXTENSIONS) ? ANALOG_GAMEPAD
+                        : (((ANALOG_BTNS_STD | port->mask) & ~analog[0].mask) | ANALOG_GAMEPAD);
+
+        if (port->cooked) {
+
+                for (i = 0; i < 4; i++) max[i] = port->axes[i] << 1;
+
+                if ((analog[0].mask & 0x7) == 0x7) max[2] = (max[0] + max[1]) >> 1;
+                if ((analog[0].mask & 0xb) == 0xb) max[3] = (max[0] + max[1]) >> 1;
+                if ((analog[0].mask & ANALOG_BTN_TL) && !(analog[0].mask & ANALOG_BTN_TL2)) max[2] >>= 1;
+                if ((analog[0].mask & ANALOG_BTN_TR) && !(analog[0].mask & ANALOG_BTN_TR2)) max[3] >>= 1;
+                if ((analog[0].mask & ANALOG_HAT_FCS)) max[3] >>= 1;
+
+                gameport_calibrate(port->gameport, port->axes, max);
+        }
+
+        for (i = 0; i < 4; i++)
+                port->initial[i] = port->axes[i];
+
+        return -!(analog[0].mask || analog[1].mask);
+}
+
+static int analog_init_port(struct gameport *gameport, struct gameport_driver *drv, struct analog_port *port)
+{
+        int i, t, u, v;
+
+        port->gameport = gameport;
+
+        gameport_set_drvdata(gameport, port);
+
+        if (!gameport_open(gameport, drv, GAMEPORT_MODE_RAW)) {
+
+                analog_calibrate_timer(port);
+
+                gameport_trigger(gameport);
+                t = gameport_read(gameport);
+                msleep(ANALOG_MAX_TIME);
+                port->mask = (gameport_read(gameport) ^ t) & t & 0xf;
+                port->fuzz = (port->speed * ANALOG_FUZZ_MAGIC) / port->loop / 1000 + ANALOG_FUZZ_BITS;
+
+                for (i = 0; i < ANALOG_INIT_RETRIES; i++) {
+                        if (!analog_cooked_read(port))
+                                break;
+                        msleep(ANALOG_MAX_TIME);
+                }
+
+                u = v = 0;
+
+                msleep(ANALOG_MAX_TIME);
+                t = gameport_time(gameport, ANALOG_MAX_TIME * 1000);
+                gameport_trigger(gameport);
+                while ((gameport_read(port->gameport) & port->mask) && (u < t))
+                        u++;
+                udelay(ANALOG_SAITEK_DELAY);
+                t = gameport_time(gameport, ANALOG_SAITEK_TIME);
+                gameport_trigger(gameport);
+                while ((gameport_read(port->gameport) & port->mask) && (v < t))
+                        v++;
+
+                if (v < (u >> 1)) { /* FIXME - more than one port */
+                        analog_options[0] |= /* FIXME - more than one port */
+                                ANALOG_SAITEK | ANALOG_BTNS_CHF | ANALOG_HBTN_CHF | ANALOG_HAT1_CHF;
+                        return 0;
+                }
+
+                gameport_close(gameport);
+        }
+
+        if (!gameport_open(gameport, drv, GAMEPORT_MODE_COOKED)) {
+
+                for (i = 0; i < ANALOG_INIT_RETRIES; i++)
+                        if (!gameport_cooked_read(gameport, port->axes, &port->buttons))
+                                break;
+                for (i = 0; i < 4; i++)
+                        if (port->axes[i] != -1)
+                                port->mask |= 1 << i;
+
+                port->fuzz = gameport->fuzz;
+                port->cooked = 1;
+                return 0;
+        }
+
+        return gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+}
+
+static int analog_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+        struct analog_port *port;
+        int i;
+        int err;
+
+        if (!(port = kcalloc(1, sizeof(struct analog_port), GFP_KERNEL)))
+                return - ENOMEM;
+
+        err = analog_init_port(gameport, drv, port);
+        if (err) {
+                kfree(port);
+                return err;
+        }
+
+        err = analog_init_masks(port);
+        if (err) {
+                gameport_close(gameport);
+                gameport_set_drvdata(gameport, NULL);
+                kfree(port);
+                return err;
+        }
+
+        gameport_set_poll_handler(gameport, analog_poll);
+        gameport_set_poll_interval(gameport, 10);
+
+        for (i = 0; i < 2; i++)
+                if (port->analog[i].mask)
+                        analog_init_device(port, port->analog + i, i);
+
+        return 0;
+}
+
+static void analog_disconnect(struct gameport *gameport)
+{
+        int i;
+        struct analog_port *port = gameport_get_drvdata(gameport);
+
+        for (i = 0; i < 2; i++)
+                if (port->analog[i].mask)
+                        input_unregister_device(&port->analog[i].dev);
+        gameport_close(gameport);
+        gameport_set_drvdata(gameport, NULL);
+        printk(KERN_INFO "analog.c: %d out of %d reads (%d%%) on %s failed\n",
+                port->bads, port->reads, port->reads ? (port->bads * 100 / port->reads) : 0,
+                port->gameport->phys);
+        kfree(port);
+}
+
+struct analog_types {
+        char *name;
+        int value;
+};
+
+static struct analog_types analog_types[] = {
+        { "none",       0x00000000 },
+        { "auto",       0x000000ff },
+        { "2btn",       0x0000003f },
+        { "y-joy",      0x0cc00033 },
+        { "y-pad",      0x8cc80033 },
+        { "fcs",        0x000008f7 },
+        { "chf",        0x000002ff },
+        { "fullchf",    0x000007ff },
+        { "gamepad",    0x000830f3 },
+        { "gamepad8",   0x0008f0f3 },
+        { NULL, 0 }
+};
+
+static void analog_parse_options(void)
+{
+        int i, j;
+        char *end;
+
+        for (i = 0; i < js_nargs; i++) {
+
+                for (j = 0; analog_types[j].name; j++)
+                        if (!strcmp(analog_types[j].name, js[i])) {
+                                analog_options[i] = analog_types[j].value;
+                                break;
+                        }
+                if (analog_types[j].name) continue;
+
+                analog_options[i] = simple_strtoul(js[i], &end, 0);
+                if (end != js[i]) continue;
+
+                analog_options[i] = 0xff;
+                if (!strlen(js[i])) continue;
+
+                printk(KERN_WARNING "analog.c: Bad config for port %d - \"%s\"\n", i, js[i]);
+        }
+
+        for (; i < ANALOG_PORTS; i++)
+                analog_options[i] = 0xff;
+}
+
+/*
+ * The gameport device structure.
+ */
+
+static struct gameport_driver analog_drv = {
+        .driver         = {
+                .name   = "analog",
+        },
+        .description    = DRIVER_DESC,
+        .connect        = analog_connect,
+        .disconnect     = analog_disconnect,
+};
+
+static int __init analog_init(void)
+{
+        analog_parse_options();
+        gameport_register_driver(&analog_drv);
+
+        return 0;
+}
+
+static void __exit analog_exit(void)
+{
+        gameport_unregister_driver(&analog_drv);
+}
+
+module_init(analog_init);
+module_exit(analog_exit);