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, 241 insertions, 0 deletions

diff --git a/drivers/usb/input/kbtab.c b/drivers/usb/input/kbtab.c
new file mode 100644
index 000000000000..a68c5b4e7b37
--- /dev/null
+++ b/drivers/usb/input/kbtab.c
@@ -0,0 +1,241 @@
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb.h>
+#include <asm/unaligned.h>
+#include <asm/byteorder.h>
+
+/*
+ * Version Information
+ * v0.0.1 - Original, extremely basic version, 2.4.xx only
+ * v0.0.2 - Updated, works with 2.5.62 and 2.4.20;
+ *           - added pressure-threshold modules param code from
+ *              Alex Perry <alex.perry@ieee.org>
+ */
+
+#define DRIVER_VERSION "v0.0.2"
+#define DRIVER_AUTHOR "Josh Myer <josh@joshisanerd.com>"
+#define DRIVER_DESC "USB KB Gear JamStudio Tablet driver"
+#define DRIVER_LICENSE "GPL"
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
+
+#define USB_VENDOR_ID_KBGEAR    0x084e
+
+static int kb_pressure_click = 0x10;
+module_param(kb_pressure_click, int, 0);
+MODULE_PARM_DESC(kb_pressure_click, "pressure threshold for clicks");
+
+struct kbtab {
+        signed char *data;
+        dma_addr_t data_dma;
+        struct input_dev dev;
+        struct usb_device *usbdev;
+        struct urb *irq;
+        int open;
+        int x, y;
+        int button;
+        int pressure;
+        __u32 serial[2];
+        char phys[32];
+};
+
+static void kbtab_irq(struct urb *urb, struct pt_regs *regs)
+{
+        struct kbtab *kbtab = urb->context;
+        unsigned char *data = kbtab->data;
+        struct input_dev *dev = &kbtab->dev;
+        int retval;
+
+        switch (urb->status) {
+        case 0:
+                /* success */
+                break;
+        case -ECONNRESET:
+        case -ENOENT:
+        case -ESHUTDOWN:
+                /* this urb is terminated, clean up */
+                dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
+                return;
+        default:
+                dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
+                goto exit;
+        }
+
+        kbtab->x = le16_to_cpu(get_unaligned((__le16 *) &data[1]));
+        kbtab->y = le16_to_cpu(get_unaligned((__le16 *) &data[3]));
+
+        kbtab->pressure = (data[5]);
+
+        input_report_key(dev, BTN_TOOL_PEN, 1);
+
+        input_report_abs(dev, ABS_X, kbtab->x);
+        input_report_abs(dev, ABS_Y, kbtab->y);
+
+        /*input_report_key(dev, BTN_TOUCH , data[0] & 0x01);*/
+        input_report_key(dev, BTN_RIGHT, data[0] & 0x02);
+
+        if( -1 == kb_pressure_click){ 
+                input_report_abs(dev, ABS_PRESSURE, kbtab->pressure);
+        } else {
+                input_report_key(dev, BTN_LEFT, (kbtab->pressure > kb_pressure_click) ? 1 : 0);
+        };
+        
+        input_sync(dev);
+
+ exit:
+        retval = usb_submit_urb (urb, GFP_ATOMIC);
+        if (retval)
+                err ("%s - usb_submit_urb failed with result %d",
+                     __FUNCTION__, retval);
+}
+
+static struct usb_device_id kbtab_ids[] = {
+        { USB_DEVICE(USB_VENDOR_ID_KBGEAR, 0x1001), .driver_info = 0 },
+        { }
+};
+
+MODULE_DEVICE_TABLE(usb, kbtab_ids);
+
+static int kbtab_open(struct input_dev *dev)
+{
+        struct kbtab *kbtab = dev->private;
+
+        if (kbtab->open++)
+                return 0;
+
+        kbtab->irq->dev = kbtab->usbdev;
+        if (usb_submit_urb(kbtab->irq, GFP_KERNEL)) {
+                kbtab->open--;
+                return -EIO;
+        }
+
+        return 0;
+}
+
+static void kbtab_close(struct input_dev *dev)
+{
+        struct kbtab *kbtab = dev->private;
+
+        if (!--kbtab->open)
+                usb_kill_urb(kbtab->irq);
+}
+
+static int kbtab_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+        struct usb_device *dev = interface_to_usbdev(intf);
+        struct usb_endpoint_descriptor *endpoint;
+        struct kbtab *kbtab;
+        char path[64];
+
+        if (!(kbtab = kmalloc(sizeof(struct kbtab), GFP_KERNEL)))
+                return -ENOMEM;
+        memset(kbtab, 0, sizeof(struct kbtab));
+
+        kbtab->data = usb_buffer_alloc(dev, 8, GFP_KERNEL, &kbtab->data_dma);
+        if (!kbtab->data) {
+                kfree(kbtab);
+                return -ENOMEM;
+        }
+
+        kbtab->irq = usb_alloc_urb(0, GFP_KERNEL);
+        if (!kbtab->irq) {
+                usb_buffer_free(dev, 10, kbtab->data, kbtab->data_dma);
+                kfree(kbtab);
+                return -ENOMEM;
+        }
+
+        kbtab->dev.evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_MSC);
+        kbtab->dev.absbit[0] |= BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
+
+        kbtab->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
+
+        kbtab->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOUCH);
+
+        kbtab->dev.mscbit[0] |= BIT(MSC_SERIAL);
+
+        kbtab->dev.absmax[ABS_X] = 0x2000;
+        kbtab->dev.absmax[ABS_Y] = 0x1750;
+        kbtab->dev.absmax[ABS_PRESSURE] = 0xff;
+        
+        kbtab->dev.absfuzz[ABS_X] = 4;
+        kbtab->dev.absfuzz[ABS_Y] = 4;
+
+        kbtab->dev.private = kbtab;
+        kbtab->dev.open = kbtab_open;
+        kbtab->dev.close = kbtab_close;
+
+        usb_make_path(dev, path, 64);
+        sprintf(kbtab->phys, "%s/input0", path);
+
+        kbtab->dev.name = "KB Gear Tablet";
+        kbtab->dev.phys = kbtab->phys;
+        kbtab->dev.id.bustype = BUS_USB;
+        kbtab->dev.id.vendor = le16_to_cpu(dev->descriptor.idVendor);
+        kbtab->dev.id.product = le16_to_cpu(dev->descriptor.idProduct);
+        kbtab->dev.id.version = le16_to_cpu(dev->descriptor.bcdDevice);
+        kbtab->dev.dev = &intf->dev;
+        kbtab->usbdev = dev;
+
+        endpoint = &intf->cur_altsetting->endpoint[0].desc;
+
+        usb_fill_int_urb(kbtab->irq, dev,
+                         usb_rcvintpipe(dev, endpoint->bEndpointAddress),
+                         kbtab->data, 8,
+                         kbtab_irq, kbtab, endpoint->bInterval);
+        kbtab->irq->transfer_dma = kbtab->data_dma;
+        kbtab->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+        input_register_device(&kbtab->dev);
+
+        printk(KERN_INFO "input: KB Gear Tablet on %s\n",  path);
+
+        usb_set_intfdata(intf, kbtab);
+
+        return 0;
+}
+
+static void kbtab_disconnect(struct usb_interface *intf)
+{
+        struct kbtab *kbtab = usb_get_intfdata (intf);
+
+        usb_set_intfdata(intf, NULL);
+        if (kbtab) {
+                usb_kill_urb(kbtab->irq);
+                input_unregister_device(&kbtab->dev);
+                usb_free_urb(kbtab->irq);
+                usb_buffer_free(interface_to_usbdev(intf), 10, kbtab->data, kbtab->data_dma);
+                kfree(kbtab);
+        }
+}
+
+static struct usb_driver kbtab_driver = {
+        .owner =        THIS_MODULE,
+        .name =         "kbtab",
+        .probe =        kbtab_probe,
+        .disconnect =   kbtab_disconnect,
+        .id_table =     kbtab_ids,
+};
+
+static int __init kbtab_init(void)
+{
+        int retval;
+        retval = usb_register(&kbtab_driver);
+        if (retval)
+                goto out;
+        info(DRIVER_VERSION ":" DRIVER_DESC);
+out:
+        return retval;
+}
+
+static void __exit kbtab_exit(void)
+{
+        usb_deregister(&kbtab_driver);
+}
+
+module_init(kbtab_init);
+module_exit(kbtab_exit);