upgrade to linux 2.6.10-1.12_FC2

[linux-2.6.git] / drivers / usb / misc / tiglusb.c

diff --git a/drivers/usb/misc/tiglusb.c b/drivers/usb/misc/tiglusb.c
index 0f9c575..4a5d2b0 100644 (file)
--- a/drivers/usb/misc/tiglusb.c
+++ b/drivers/usb/misc/tiglusb.c
@@ -4,7 +4,7 @@
  * Target: Texas Instruments graphing calculators (http://lpg.ticalc.org).
  *
  * Copyright (C) 2001-2004:
- *   Romain Lievin <roms@lpg.ticalc.org>
+ *   Romain Lievin <roms@tilp.info>
  *   Julien BLACHE <jb@technologeek.org>
  * under the terms of the GNU General Public License.
  *
@@ -14,7 +14,7 @@
  * and the website at:  http://lpg.ticalc.org/prj_usb/
  * for more info.
  *
- * History :
+ * History:
  *   1.0x, Romain & Julien: initial submit.
  *   1.03, Greg Kroah: modifications.
  *   1.04, Julien: clean-up & fixes; Romain: 2.4 backport.
@@ -22,6 +22,7 @@
  *   1.06, Romain: synched with 2.5, version/firmware changed (confusing).
  *   1.07, Romain: fixed bad use of usb_clear_halt (invalid argument);
  *          timeout argument checked in ioctl + clean-up.
+ *   1.08, Romain: added support of USB port embedded on some TI's handhelds.
  */
 
 #include <linux/module.h>
@@ -41,7 +42,7 @@
 /*
  * Version Information
  */
-#define DRIVER_VERSION "1.07"
+#define DRIVER_VERSION "1.08"
 #define DRIVER_AUTHOR  "Romain Lievin <roms@tilp.info> & Julien Blache <jb@jblache.org>"
 #define DRIVER_DESC    "TI-GRAPH LINK USB (aka SilverLink) driver"
 #define DRIVER_LICENSE "GPL"
@@ -115,7 +116,7 @@ tiglusb_open (struct inode *inode, struct file *filp)
                        return -EBUSY;
                }
 
-               schedule_timeout (HZ / 2);
+               msleep_interruptible(500);
 
                if (signal_pending (current)) {
                        return -EAGAIN;
@@ -177,11 +178,11 @@ tiglusb_read (struct file *filp, char __user *buf, size_t count, loff_t * f_pos)
        if (!s->dev)
                return -EIO;
 
-       buffer = kmalloc(BULK_RCV_MAX, GFP_KERNEL);
+       buffer = kmalloc (s->max_ps, GFP_KERNEL);
        if (!buffer)
                return -ENOMEM;
 
-       bytes_to_read = (count >= BULK_RCV_MAX) ? BULK_RCV_MAX : count;
+       bytes_to_read = (count >= s->max_ps) ? s->max_ps : count;
 
        pipe = usb_rcvbulkpipe (s->dev, 1);
        result = usb_bulk_msg (s->dev, pipe, buffer, bytes_to_read,
@@ -234,11 +235,11 @@ tiglusb_write (struct file *filp, const char __user *buf, size_t count, loff_t *
        if (!s->dev)
                return -EIO;
 
-       buffer = kmalloc(BULK_SND_MAX, GFP_KERNEL);
+       buffer = kmalloc (s->max_ps, GFP_KERNEL);
        if (!buffer)
                return -ENOMEM;
 
-       bytes_to_write = (count >= BULK_SND_MAX) ? BULK_SND_MAX : count;
+       bytes_to_write = (count >= s->max_ps) ? s->max_ps : count;
        if (copy_from_user (buffer, buf, bytes_to_write)) {
                ret = -EFAULT;
                goto out;
@@ -308,6 +309,15 @@ tiglusb_ioctl (struct inode *inode, struct file *filp,
                if (clear_pipes (s->dev))
                        ret = -EIO;
                break;
+       case IOCTL_TIUSB_GET_MAXPS:
+                if (copy_to_user((int __user *) arg, &s->max_ps, sizeof(int)))
+                        return -EFAULT;
+                break;
+        case IOCTL_TIUSB_GET_DEVID:
+                if (copy_to_user((int __user *) arg, &s->dev->descriptor.idProduct,
+                                 sizeof(int)))
+                        return -EFAULT;
+                break;
        default:
                ret = -ENOTTY;
                break;
@@ -340,6 +350,9 @@ tiglusb_probe (struct usb_interface *intf,
        int minor = -1;
        int i, err = 0;
        ptiglusb_t s;
+       struct usb_host_config *conf;
+        struct usb_host_interface *ifdata = NULL;
+        int max_ps;
 
        dbg ("probing vendor id 0x%x, device id 0x%x",
             dev->descriptor.idVendor, dev->descriptor.idProduct);
@@ -354,19 +367,31 @@ tiglusb_probe (struct usb_interface *intf,
                goto out;
        }
 
-       if ((dev->descriptor.idProduct != 0xe001)
-           && (dev->descriptor.idVendor != 0x451)) {
+       if (dev->descriptor.idVendor != 0x451) {
                err = -ENODEV;
                goto out;
        }
 
-       // NOTE:  it's already in this config, this shouldn't be needed.
-       // is this working around some hardware bug?
-       if (usb_reset_configuration (dev) < 0) {
-               err ("tiglusb_probe: reset_configuration failed");
-               err = -ENODEV;
-               goto out;
-       }
+       if ((dev->descriptor.idProduct != 0xe001) &&
+            (dev->descriptor.idProduct != 0xe004) &&
+            (dev->descriptor.idProduct != 0xe008)) {
+                err = -ENODEV;
+                goto out;
+        }
+
+       /*
+         * TI introduced some new handhelds with embedded USB port.
+         * Port advertises same config as SilverLink cable but with a 
+        * different maximum packet size (64 rather than 32).
+         */
+
+        conf = dev->actconfig;
+        ifdata = conf->interface[0]->cur_altsetting;
+        max_ps = ifdata->endpoint[0].desc.wMaxPacketSize;
+
+        info("max packet size of %d/%d bytes\n",
+             ifdata->endpoint[0].desc.wMaxPacketSize,
+             ifdata->endpoint[1].desc.wMaxPacketSize);
 
        /*
         * Find a tiglusb struct
@@ -389,6 +414,7 @@ tiglusb_probe (struct usb_interface *intf,
        down (&s->mutex);
        s->remove_pending = 0;
        s->dev = dev;
+       s->max_ps = max_ps;
        up (&s->mutex);
        dbg ("bound to interface");