--- /dev/null
+/*
+ * Copyright (c) 1998-2001 Vojtech Pavlik
+ */
+
+/*
+ * FP-Gaming Assassin 3D joystick 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/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC "FP-Gaming Assassin 3D joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define A3D_MAX_START 600 /* 600 us */
+#define A3D_MAX_STROBE 80 /* 80 us */
+#define A3D_MAX_LENGTH 40 /* 40*3 bits */
+
+#define A3D_MODE_A3D 1 /* Assassin 3D */
+#define A3D_MODE_PAN 2 /* Panther */
+#define A3D_MODE_OEM 3 /* Panther OEM version */
+#define A3D_MODE_PXL 4 /* Panther XL */
+
+static char *a3d_names[] = { NULL, "FP-Gaming Assassin 3D", "MadCatz Panther", "OEM Panther",
+ "MadCatz Panther XL", "MadCatz Panther XL w/ rudder" };
+
+struct a3d {
+ struct gameport *gameport;
+ struct gameport *adc;
+ struct input_dev *dev;
+ int axes[4];
+ int buttons;
+ int mode;
+ int length;
+ int reads;
+ int bads;
+ char phys[32];
+};
+
+/*
+ * a3d_read_packet() reads an Assassin 3D packet.
+ */
+
+static int a3d_read_packet(struct gameport *gameport, int length, char *data)
+{
+ unsigned long flags;
+ unsigned char u, v;
+ unsigned int t, s;
+ int i;
+
+ i = 0;
+ t = gameport_time(gameport, A3D_MAX_START);
+ s = gameport_time(gameport, A3D_MAX_STROBE);
+
+ local_irq_save(flags);
+ gameport_trigger(gameport);
+ v = gameport_read(gameport);
+
+ while (t > 0 && i < length) {
+ t--;
+ u = v; v = gameport_read(gameport);
+ if (~v & u & 0x10) {
+ data[i++] = v >> 5;
+ t = s;
+ }
+ }
+
+ local_irq_restore(flags);
+
+ return i;
+}
+
+/*
+ * a3d_csum() computes checksum of triplet packet
+ */
+
+static int a3d_csum(char *data, int count)
+{
+ int i, csum = 0;
+
+ for (i = 0; i < count - 2; i++)
+ csum += data[i];
+ return (csum & 0x3f) != ((data[count - 2] << 3) | data[count - 1]);
+}
+
+static void a3d_read(struct a3d *a3d, unsigned char *data)
+{
+ struct input_dev *dev = a3d->dev;
+
+ switch (a3d->mode) {
+
+ case A3D_MODE_A3D:
+ case A3D_MODE_OEM:
+ case A3D_MODE_PAN:
+
+ input_report_rel(dev, REL_X, ((data[5] << 6) | (data[6] << 3) | data[ 7]) - ((data[5] & 4) << 7));
+ input_report_rel(dev, REL_Y, ((data[8] << 6) | (data[9] << 3) | data[10]) - ((data[8] & 4) << 7));
+
+ input_report_key(dev, BTN_RIGHT, data[2] & 1);
+ input_report_key(dev, BTN_LEFT, data[3] & 2);
+ input_report_key(dev, BTN_MIDDLE, data[3] & 4);
+
+ input_sync(dev);
+
+ a3d->axes[0] = ((signed char)((data[11] << 6) | (data[12] << 3) | (data[13]))) + 128;
+ a3d->axes[1] = ((signed char)((data[14] << 6) | (data[15] << 3) | (data[16]))) + 128;
+ a3d->axes[2] = ((signed char)((data[17] << 6) | (data[18] << 3) | (data[19]))) + 128;
+ a3d->axes[3] = ((signed char)((data[20] << 6) | (data[21] << 3) | (data[22]))) + 128;
+
+ a3d->buttons = ((data[3] << 3) | data[4]) & 0xf;
+
+ break;
+
+ case A3D_MODE_PXL:
+
+ input_report_rel(dev, REL_X, ((data[ 9] << 6) | (data[10] << 3) | data[11]) - ((data[ 9] & 4) << 7));
+ input_report_rel(dev, REL_Y, ((data[12] << 6) | (data[13] << 3) | data[14]) - ((data[12] & 4) << 7));
+
+ input_report_key(dev, BTN_RIGHT, data[2] & 1);
+ input_report_key(dev, BTN_LEFT, data[3] & 2);
+ input_report_key(dev, BTN_MIDDLE, data[3] & 4);
+ input_report_key(dev, BTN_SIDE, data[7] & 2);
+ input_report_key(dev, BTN_EXTRA, data[7] & 4);
+
+ input_report_abs(dev, ABS_X, ((signed char)((data[15] << 6) | (data[16] << 3) | (data[17]))) + 128);
+ input_report_abs(dev, ABS_Y, ((signed char)((data[18] << 6) | (data[19] << 3) | (data[20]))) + 128);
+ input_report_abs(dev, ABS_RUDDER, ((signed char)((data[21] << 6) | (data[22] << 3) | (data[23]))) + 128);
+ input_report_abs(dev, ABS_THROTTLE, ((signed char)((data[24] << 6) | (data[25] << 3) | (data[26]))) + 128);
+
+ input_report_abs(dev, ABS_HAT0X, ( data[5] & 1) - ((data[5] >> 2) & 1));
+ input_report_abs(dev, ABS_HAT0Y, ((data[5] >> 1) & 1) - ((data[6] >> 2) & 1));
+ input_report_abs(dev, ABS_HAT1X, ((data[4] >> 1) & 1) - ( data[3] & 1));
+ input_report_abs(dev, ABS_HAT1Y, ((data[4] >> 2) & 1) - ( data[4] & 1));
+
+ input_report_key(dev, BTN_TRIGGER, data[8] & 1);
+ input_report_key(dev, BTN_THUMB, data[8] & 2);
+ input_report_key(dev, BTN_TOP, data[8] & 4);
+ input_report_key(dev, BTN_PINKIE, data[7] & 1);
+
+ input_sync(dev);
+
+ break;
+ }
+}
+
+
+/*
+ * a3d_poll() reads and analyzes A3D joystick data.
+ */
+
+static void a3d_poll(struct gameport *gameport)
+{
+ struct a3d *a3d = gameport_get_drvdata(gameport);
+ unsigned char data[A3D_MAX_LENGTH];
+
+ a3d->reads++;
+ if (a3d_read_packet(a3d->gameport, a3d->length, data) != a3d->length ||
+ data[0] != a3d->mode || a3d_csum(data, a3d->length))
+ a3d->bads++;
+ else
+ a3d_read(a3d, data);
+}
+
+/*
+ * a3d_adc_cooked_read() copies the acis and button data to the
+ * callers arrays. It could do the read itself, but the caller could
+ * call this more than 50 times a second, which would use too much CPU.
+ */
+
+static int a3d_adc_cooked_read(struct gameport *gameport, int *axes, int *buttons)
+{
+ struct a3d *a3d = gameport->port_data;
+ int i;
+
+ for (i = 0; i < 4; i++)
+ axes[i] = (a3d->axes[i] < 254) ? a3d->axes[i] : -1;
+ *buttons = a3d->buttons;
+ return 0;
+}
+
+/*
+ * a3d_adc_open() is the gameport open routine. It refuses to serve
+ * any but cooked data.
+ */
+
+static int a3d_adc_open(struct gameport *gameport, int mode)
+{
+ struct a3d *a3d = gameport->port_data;
+
+ if (mode != GAMEPORT_MODE_COOKED)
+ return -1;
+
+ gameport_start_polling(a3d->gameport);
+ return 0;
+}
+
+/*
+ * a3d_adc_close() is a callback from the input close routine.
+ */
+
+static void a3d_adc_close(struct gameport *gameport)
+{
+ struct a3d *a3d = gameport->port_data;
+
+ gameport_stop_polling(a3d->gameport);
+}
+
+/*
+ * a3d_open() is a callback from the input open routine.
+ */
+
+static int a3d_open(struct input_dev *dev)
+{
+ struct a3d *a3d = input_get_drvdata(dev);
+
+ gameport_start_polling(a3d->gameport);
+ return 0;
+}
+
+/*
+ * a3d_close() is a callback from the input close routine.
+ */
+
+static void a3d_close(struct input_dev *dev)
+{
+ struct a3d *a3d = input_get_drvdata(dev);
+
+ gameport_stop_polling(a3d->gameport);
+}
+
+/*
+ * a3d_connect() probes for A3D joysticks.
+ */
+
+static int a3d_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct a3d *a3d;
+ struct input_dev *input_dev;
+ struct gameport *adc;
+ unsigned char data[A3D_MAX_LENGTH];
+ int i;
+ int err;
+
+ a3d = kzalloc(sizeof(struct a3d), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!a3d || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ a3d->dev = input_dev;
+ a3d->gameport = gameport;
+
+ gameport_set_drvdata(gameport, a3d);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
+ goto fail1;
+
+ i = a3d_read_packet(gameport, A3D_MAX_LENGTH, data);
+
+ if (!i || a3d_csum(data, i)) {
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ a3d->mode = data[0];
+
+ if (!a3d->mode || a3d->mode > 5) {
+ printk(KERN_WARNING "a3d.c: Unknown A3D device detected "
+ "(%s, id=%d), contact <vojtech@ucw.cz>\n", gameport->phys, a3d->mode);
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ gameport_set_poll_handler(gameport, a3d_poll);
+ gameport_set_poll_interval(gameport, 20);
+
+ snprintf(a3d->phys, sizeof(a3d->phys), "%s/input0", gameport->phys);
+
+ input_dev->name = a3d_names[a3d->mode];
+ input_dev->phys = a3d->phys;
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_MADCATZ;
+ input_dev->id.product = a3d->mode;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &gameport->dev;
+ input_dev->open = a3d_open;
+ input_dev->close = a3d_close;
+
+ input_set_drvdata(input_dev, a3d);
+
+ if (a3d->mode == A3D_MODE_PXL) {
+
+ int axes[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER };
+
+ a3d->length = 33;
+
+ input_dev->evbit[0] |= BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY) |
+ BIT_MASK(EV_REL);
+ input_dev->relbit[0] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+ input_dev->absbit[0] |= BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
+ BIT_MASK(ABS_THROTTLE) | BIT_MASK(ABS_RUDDER) |
+ BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
+ BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y);
+ input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_RIGHT) |
+ BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) |
+ BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA);
+ input_dev->keybit[BIT_WORD(BTN_JOYSTICK)] |=
+ BIT_MASK(BTN_TRIGGER) | BIT_MASK(BTN_THUMB) |
+ BIT_MASK(BTN_TOP) | BIT_MASK(BTN_PINKIE);
+
+ a3d_read(a3d, data);
+
+ for (i = 0; i < 4; i++) {
+ if (i < 2)
+ input_set_abs_params(input_dev, axes[i],
+ 48, input_abs_get_val(input_dev, axes[i]) * 2 - 48, 0, 8);
+ else
+ input_set_abs_params(input_dev, axes[i], 2, 253, 0, 0);
+ input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
+ }
+
+ } else {
+ a3d->length = 29;
+
+ input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ input_dev->relbit[0] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+ input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_RIGHT) |
+ BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE);
+
+ a3d_read(a3d, data);
+
+ if (!(a3d->adc = adc = gameport_allocate_port()))
+ printk(KERN_ERR "a3d: Not enough memory for ADC port\n");
+ else {
+ adc->port_data = a3d;
+ adc->open = a3d_adc_open;
+ adc->close = a3d_adc_close;
+ adc->cooked_read = a3d_adc_cooked_read;
+ adc->fuzz = 1;
+
+ gameport_set_name(adc, a3d_names[a3d->mode]);
+ gameport_set_phys(adc, "%s/gameport0", gameport->phys);
+ adc->dev.parent = &gameport->dev;
+
+ gameport_register_port(adc);
+ }
+ }
+
+ err = input_register_device(a3d->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: if (a3d->adc)
+ gameport_unregister_port(a3d->adc);
+ fail2: gameport_close(gameport);
+ fail1: gameport_set_drvdata(gameport, NULL);
+ input_free_device(input_dev);
+ kfree(a3d);
+ return err;
+}
+
+static void a3d_disconnect(struct gameport *gameport)
+{
+ struct a3d *a3d = gameport_get_drvdata(gameport);
+
+ input_unregister_device(a3d->dev);
+ if (a3d->adc)
+ gameport_unregister_port(a3d->adc);
+ gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
+ kfree(a3d);
+}
+
+static struct gameport_driver a3d_drv = {
+ .driver = {
+ .name = "adc",
+ .owner = THIS_MODULE,
+ },
+ .description = DRIVER_DESC,
+ .connect = a3d_connect,
+ .disconnect = a3d_disconnect,
+};
+
+module_gameport_driver(a3d_drv);
Code Review / kvmfornfv.git / blobdiff