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, 264 insertions, 0 deletions

diff --git a/drivers/input/joystick/cobra.c b/drivers/input/joystick/cobra.c
new file mode 100644
index 000000000000..a6002205328f
--- /dev/null
+++ b/drivers/input/joystick/cobra.c
@@ -0,0 +1,264 @@
+/*
+ * $Id: cobra.c,v 1.19 2002/01/22 20:26:52 vojtech Exp $
+ *
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Creative Labs Blaster GamePad Cobra 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/init.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+
+#define DRIVER_DESC     "Creative Labs Blaster GamePad Cobra driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define COBRA_MAX_STROBE        45      /* 45 us max wait for first strobe */
+#define COBRA_LENGTH            36
+
+static char* cobra_name = "Creative Labs Blaster GamePad Cobra";
+
+static int cobra_btn[] = { BTN_START, BTN_SELECT, BTN_TL, BTN_TR, BTN_X, BTN_Y, BTN_Z, BTN_A, BTN_B, BTN_C, BTN_TL2, BTN_TR2, 0 };
+
+struct cobra {
+        struct gameport *gameport;
+        struct input_dev dev[2];
+        int reads;
+        int bads;
+        unsigned char exists;
+        char phys[2][32];
+};
+
+static unsigned char cobra_read_packet(struct gameport *gameport, unsigned int *data)
+{
+        unsigned long flags;
+        unsigned char u, v, w;
+        __u64 buf[2];
+        int r[2], t[2];
+        int i, j, ret;
+
+        int strobe = gameport_time(gameport, COBRA_MAX_STROBE);
+
+        for (i = 0; i < 2; i++) {
+                r[i] = buf[i] = 0;
+                t[i] = COBRA_MAX_STROBE;
+        }
+
+        local_irq_save(flags);
+
+        u = gameport_read(gameport);
+
+        do {
+                t[0]--; t[1]--;
+                v = gameport_read(gameport);
+                for (i = 0, w = u ^ v; i < 2 && w; i++, w >>= 2)
+                        if (w & 0x30) {
+                                if ((w & 0x30) < 0x30 && r[i] < COBRA_LENGTH && t[i] > 0) {
+                                        buf[i] |= (__u64)((w >> 5) & 1) << r[i]++;
+                                        t[i] = strobe;
+                                        u = v;
+                                } else t[i] = 0;
+                        }
+        } while (t[0] > 0 || t[1] > 0);
+
+        local_irq_restore(flags);
+
+        ret = 0;
+
+        for (i = 0; i < 2; i++) {
+
+                if (r[i] != COBRA_LENGTH) continue;
+
+                for (j = 0; j < COBRA_LENGTH && (buf[i] & 0x04104107f) ^ 0x041041040; j++)
+                        buf[i] = (buf[i] >> 1) | ((__u64)(buf[i] & 1) << (COBRA_LENGTH - 1));
+
+                if (j < COBRA_LENGTH) ret |= (1 << i);
+
+                data[i] = ((buf[i] >>  7) & 0x000001f) | ((buf[i] >>  8) & 0x00003e0)
+                        | ((buf[i] >>  9) & 0x0007c00) | ((buf[i] >> 10) & 0x00f8000)
+                        | ((buf[i] >> 11) & 0x1f00000);
+
+        }
+
+        return ret;
+}
+
+static void cobra_poll(struct gameport *gameport)
+{
+        struct cobra *cobra = gameport_get_drvdata(gameport);
+        struct input_dev *dev;
+        unsigned int data[2];
+        int i, j, r;
+
+        cobra->reads++;
+
+        if ((r = cobra_read_packet(gameport, data)) != cobra->exists) {
+                cobra->bads++;
+                return;
+        }
+
+        for (i = 0; i < 2; i++)
+                if (cobra->exists & r & (1 << i)) {
+
+                        dev = cobra->dev + i;
+
+                        input_report_abs(dev, ABS_X, ((data[i] >> 4) & 1) - ((data[i] >> 3) & 1));
+                        input_report_abs(dev, ABS_Y, ((data[i] >> 2) & 1) - ((data[i] >> 1) & 1));
+
+                        for (j = 0; cobra_btn[j]; j++)
+                                input_report_key(dev, cobra_btn[j], data[i] & (0x20 << j));
+
+                        input_sync(dev);
+
+                }
+}
+
+static int cobra_open(struct input_dev *dev)
+{
+        struct cobra *cobra = dev->private;
+
+        gameport_start_polling(cobra->gameport);
+        return 0;
+}
+
+static void cobra_close(struct input_dev *dev)
+{
+        struct cobra *cobra = dev->private;
+
+        gameport_stop_polling(cobra->gameport);
+}
+
+static int cobra_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+        struct cobra *cobra;
+        unsigned int data[2];
+        int i, j;
+        int err;
+
+        if (!(cobra = kcalloc(1, sizeof(struct cobra), GFP_KERNEL)))
+                return -ENOMEM;
+
+        cobra->gameport = gameport;
+
+        gameport_set_drvdata(gameport, cobra);
+
+        err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+        if (err)
+                goto fail1;
+
+        cobra->exists = cobra_read_packet(gameport, data);
+
+        for (i = 0; i < 2; i++)
+                if ((cobra->exists >> i) & data[i] & 1) {
+                        printk(KERN_WARNING "cobra.c: Device %d on %s has the Ext bit set. ID is: %d"
+                                " Contact vojtech@ucw.cz\n", i, gameport->phys, (data[i] >> 2) & 7);
+                        cobra->exists &= ~(1 << i);
+                }
+
+        if (!cobra->exists) {
+                err = -ENODEV;
+                goto fail2;
+        }
+
+        gameport_set_poll_handler(gameport, cobra_poll);
+        gameport_set_poll_interval(gameport, 20);
+
+        for (i = 0; i < 2; i++)
+                if ((cobra->exists >> i) & 1) {
+
+                        sprintf(cobra->phys[i], "%s/input%d", gameport->phys, i);
+
+                        cobra->dev[i].private = cobra;
+                        cobra->dev[i].open = cobra_open;
+                        cobra->dev[i].close = cobra_close;
+
+                        cobra->dev[i].name = cobra_name;
+                        cobra->dev[i].phys = cobra->phys[i];
+                        cobra->dev[i].id.bustype = BUS_GAMEPORT;
+                        cobra->dev[i].id.vendor = GAMEPORT_ID_VENDOR_CREATIVE;
+                        cobra->dev[i].id.product = 0x0008;
+                        cobra->dev[i].id.version = 0x0100;
+
+                        cobra->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+
+                        input_set_abs_params(&cobra->dev[i], ABS_X, -1, 1, 0, 0);
+                        input_set_abs_params(&cobra->dev[i], ABS_Y, -1, 1, 0, 0);
+
+                        for (j = 0; cobra_btn[j]; j++)
+                                set_bit(cobra_btn[j], cobra->dev[i].keybit);
+
+                        input_register_device(&cobra->dev[i]);
+                        printk(KERN_INFO "input: %s on %s\n", cobra_name, gameport->phys);
+                }
+
+        return 0;
+
+fail2:  gameport_close(gameport);
+fail1:  gameport_set_drvdata(gameport, NULL);
+        kfree(cobra);
+        return err;
+}
+
+static void cobra_disconnect(struct gameport *gameport)
+{
+        struct cobra *cobra = gameport_get_drvdata(gameport);
+        int i;
+
+        for (i = 0; i < 2; i++)
+                if ((cobra->exists >> i) & 1)
+                        input_unregister_device(cobra->dev + i);
+        gameport_close(gameport);
+        gameport_set_drvdata(gameport, NULL);
+        kfree(cobra);
+}
+
+static struct gameport_driver cobra_drv = {
+        .driver         = {
+                .name   = "cobra",
+        },
+        .description    = DRIVER_DESC,
+        .connect        = cobra_connect,
+        .disconnect     = cobra_disconnect,
+};
+
+static int __init cobra_init(void)
+{
+        gameport_register_driver(&cobra_drv);
+        return 0;
+}
+
+static void __exit cobra_exit(void)
+{
+        gameport_unregister_driver(&cobra_drv);
+}
+
+module_init(cobra_init);
+module_exit(cobra_exit);