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-rw-r--r--drivers/usb/misc/Kconfig10
-rw-r--r--drivers/usb/misc/Makefile1
-rw-r--r--drivers/usb/misc/idmouse.c149
-rw-r--r--drivers/usb/misc/ldusb.c794
-rw-r--r--drivers/usb/misc/usbtest.c60
5 files changed, 945 insertions, 69 deletions
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index 3a896954b3a..6649531fa82 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -139,6 +139,16 @@ config USB_IDMOUSE
source "drivers/usb/misc/sisusbvga/Kconfig"
+config USB_LD
+ tristate "USB LD driver"
+ depends on USB && EXPERIMENTAL
+ help
+ This driver is for generic USB devices that use interrupt transfers,
+ like LD Didactic's USB devices.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ldusb.
+
config USB_TEST
tristate "USB testing driver (DEVELOPMENT)"
depends on USB && USB_DEVICEFS && EXPERIMENTAL
diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile
index 4a3814cbd48..862e40a8368 100644
--- a/drivers/usb/misc/Makefile
+++ b/drivers/usb/misc/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_USB_EMI26) += emi26.o
obj-$(CONFIG_USB_EMI62) += emi62.o
obj-$(CONFIG_USB_IDMOUSE) += idmouse.o
obj-$(CONFIG_USB_LCD) += usblcd.o
+obj-$(CONFIG_USB_LD) += ldusb.o
obj-$(CONFIG_USB_LED) += usbled.o
obj-$(CONFIG_USB_LEGOTOWER) += legousbtower.o
obj-$(CONFIG_USB_PHIDGETKIT) += phidgetkit.o
diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
index ce030d1f1c1..733acc21372 100644
--- a/drivers/usb/misc/idmouse.c
+++ b/drivers/usb/misc/idmouse.c
@@ -1,4 +1,4 @@
-/* Siemens ID Mouse driver v0.5
+/* Siemens ID Mouse driver v0.6
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
@@ -11,6 +11,9 @@
Derived from the USB Skeleton driver 1.1,
Copyright (C) 2003 Greg Kroah-Hartman (greg@kroah.com)
+ Additional information provided by Martin Reising
+ <Martin.Reising@natural-computing.de>
+
*/
#include <linux/config.h>
@@ -25,29 +28,44 @@
#include <asm/uaccess.h>
#include <linux/usb.h>
+/* image constants */
#define WIDTH 225
-#define HEIGHT 288
-#define HEADER "P5 225 288 255 "
+#define HEIGHT 289
+#define HEADER "P5 225 289 255 "
#define IMGSIZE ((WIDTH * HEIGHT) + sizeof(HEADER)-1)
-/* Version Information */
-#define DRIVER_VERSION "0.5"
+/* version information */
+#define DRIVER_VERSION "0.6"
#define DRIVER_SHORT "idmouse"
#define DRIVER_AUTHOR "Florian 'Floe' Echtler <echtler@fs.tum.de>"
#define DRIVER_DESC "Siemens ID Mouse FingerTIP Sensor Driver"
-/* Siemens ID Mouse */
-#define USB_IDMOUSE_VENDOR_ID 0x0681
-#define USB_IDMOUSE_PRODUCT_ID 0x0005
-
-/* we still need a minor number */
+/* minor number for misc USB devices */
#define USB_IDMOUSE_MINOR_BASE 132
+/* vendor and device IDs */
+#define ID_SIEMENS 0x0681
+#define ID_IDMOUSE 0x0005
+#define ID_CHERRY 0x0010
+
+/* device ID table */
static struct usb_device_id idmouse_table[] = {
- {USB_DEVICE(USB_IDMOUSE_VENDOR_ID, USB_IDMOUSE_PRODUCT_ID)},
- {} /* null entry at the end */
+ {USB_DEVICE(ID_SIEMENS, ID_IDMOUSE)}, /* Siemens ID Mouse (Professional) */
+ {USB_DEVICE(ID_SIEMENS, ID_CHERRY )}, /* Cherry FingerTIP ID Board */
+ {} /* terminating null entry */
};
+/* sensor commands */
+#define FTIP_RESET 0x20
+#define FTIP_ACQUIRE 0x21
+#define FTIP_RELEASE 0x22
+#define FTIP_BLINK 0x23 /* LSB of value = blink pulse width */
+#define FTIP_SCROLL 0x24
+
+#define ftip_command(dev, command, value, index) \
+ usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0), command, \
+ USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, value, index, NULL, 0, 1000)
+
MODULE_DEVICE_TABLE(usb, idmouse_table);
/* structure to hold all of our device specific stuff */
@@ -57,7 +75,8 @@ struct usb_idmouse {
struct usb_interface *interface; /* the interface for this device */
unsigned char *bulk_in_buffer; /* the buffer to receive data */
- size_t bulk_in_size; /* the size of the receive buffer */
+ size_t bulk_in_size; /* the maximum bulk packet size */
+ size_t orig_bi_size; /* same as above, but reported by the device */
__u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */
int open; /* if the port is open or not */
@@ -103,7 +122,7 @@ static struct usb_driver idmouse_driver = {
.id_table = idmouse_table,
};
-// prevent races between open() and disconnect()
+/* prevent races between open() and disconnect() */
static DECLARE_MUTEX(disconnect_sem);
static int idmouse_create_image(struct usb_idmouse *dev)
@@ -112,42 +131,34 @@ static int idmouse_create_image(struct usb_idmouse *dev)
int bulk_read = 0;
int result = 0;
- if (dev->bulk_in_size < sizeof(HEADER))
- return -ENOMEM;
-
- memcpy(dev->bulk_in_buffer,HEADER,sizeof(HEADER)-1);
+ memcpy(dev->bulk_in_buffer, HEADER, sizeof(HEADER)-1);
bytes_read += sizeof(HEADER)-1;
- /* Dump the setup packets. Yes, they are uncommented, simply
- because they were sniffed under Windows using SnoopyPro.
- I _guess_ that 0x22 is a kind of reset command and 0x21
- means init..
- */
- result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
- 0x21, 0x42, 0x0001, 0x0002, NULL, 0, 1000);
- if (result < 0)
- return result;
- result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
- 0x20, 0x42, 0x0001, 0x0002, NULL, 0, 1000);
+ /* reset the device and set a fast blink rate */
+ result = ftip_command(dev, FTIP_RELEASE, 0, 0);
if (result < 0)
- return result;
- result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
- 0x22, 0x42, 0x0000, 0x0002, NULL, 0, 1000);
+ goto reset;
+ result = ftip_command(dev, FTIP_BLINK, 1, 0);
if (result < 0)
- return result;
+ goto reset;
- result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
- 0x21, 0x42, 0x0001, 0x0002, NULL, 0, 1000);
+ /* initialize the sensor - sending this command twice */
+ /* significantly reduces the rate of failed reads */
+ result = ftip_command(dev, FTIP_ACQUIRE, 0, 0);
if (result < 0)
- return result;
- result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
- 0x20, 0x42, 0x0001, 0x0002, NULL, 0, 1000);
+ goto reset;
+ result = ftip_command(dev, FTIP_ACQUIRE, 0, 0);
if (result < 0)
- return result;
- result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
- 0x20, 0x42, 0x0000, 0x0002, NULL, 0, 1000);
+ goto reset;
+
+ /* start the readout - sending this command twice */
+ /* presumably enables the high dynamic range mode */
+ result = ftip_command(dev, FTIP_RESET, 0, 0);
if (result < 0)
- return result;
+ goto reset;
+ result = ftip_command(dev, FTIP_RESET, 0, 0);
+ if (result < 0)
+ goto reset;
/* loop over a blocking bulk read to get data from the device */
while (bytes_read < IMGSIZE) {
@@ -155,22 +166,40 @@ static int idmouse_create_image(struct usb_idmouse *dev)
usb_rcvbulkpipe (dev->udev, dev->bulk_in_endpointAddr),
dev->bulk_in_buffer + bytes_read,
dev->bulk_in_size, &bulk_read, 5000);
- if (result < 0)
- return result;
- if (signal_pending(current))
- return -EINTR;
+ if (result < 0) {
+ /* Maybe this error was caused by the increased packet size? */
+ /* Reset to the original value and tell userspace to retry. */
+ if (dev->bulk_in_size != dev->orig_bi_size) {
+ dev->bulk_in_size = dev->orig_bi_size;
+ result = -EAGAIN;
+ }
+ break;
+ }
+ if (signal_pending(current)) {
+ result = -EINTR;
+ break;
+ }
bytes_read += bulk_read;
}
/* reset the device */
- result = usb_control_msg (dev->udev, usb_sndctrlpipe (dev->udev, 0),
- 0x22, 0x42, 0x0000, 0x0002, NULL, 0, 1000);
- if (result < 0)
- return result;
+reset:
+ ftip_command(dev, FTIP_RELEASE, 0, 0);
+
+ /* check for valid image */
+ /* right border should be black (0x00) */
+ for (bytes_read = sizeof(HEADER)-1 + WIDTH-1; bytes_read < IMGSIZE; bytes_read += WIDTH)
+ if (dev->bulk_in_buffer[bytes_read] != 0x00)
+ return -EAGAIN;
- /* should be IMGSIZE == 64815 */
+ /* lower border should be white (0xFF) */
+ for (bytes_read = IMGSIZE-WIDTH; bytes_read < IMGSIZE-1; bytes_read++)
+ if (dev->bulk_in_buffer[bytes_read] != 0xFF)
+ return -EAGAIN;
+
+ /* should be IMGSIZE == 65040 */
dbg("read %d bytes fingerprint data", bytes_read);
- return 0;
+ return result;
}
static inline void idmouse_delete(struct usb_idmouse *dev)
@@ -282,10 +311,10 @@ static ssize_t idmouse_read(struct file *file, char __user *buffer, size_t count
dev = (struct usb_idmouse *) file->private_data;
- // lock this object
+ /* lock this object */
down (&dev->sem);
- // verify that the device wasn't unplugged
+ /* verify that the device wasn't unplugged */
if (!dev->present) {
up (&dev->sem);
return -ENODEV;
@@ -296,8 +325,7 @@ static ssize_t idmouse_read(struct file *file, char __user *buffer, size_t count
return 0;
}
- if (count > IMGSIZE - *ppos)
- count = IMGSIZE - *ppos;
+ count = min ((loff_t)count, IMGSIZE - (*ppos));
if (copy_to_user (buffer, dev->bulk_in_buffer + *ppos, count)) {
result = -EFAULT;
@@ -306,7 +334,7 @@ static ssize_t idmouse_read(struct file *file, char __user *buffer, size_t count
*ppos += count;
}
- // unlock the device
+ /* unlock the device */
up(&dev->sem);
return result;
}
@@ -318,7 +346,6 @@ static int idmouse_probe(struct usb_interface *interface,
struct usb_idmouse *dev = NULL;
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
- size_t buffer_size;
int result;
/* check if we have gotten the data or the hid interface */
@@ -344,11 +371,11 @@ static int idmouse_probe(struct usb_interface *interface,
USB_ENDPOINT_XFER_BULK)) {
/* we found a bulk in endpoint */
- buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
- dev->bulk_in_size = buffer_size;
+ dev->orig_bi_size = le16_to_cpu(endpoint->wMaxPacketSize);
+ dev->bulk_in_size = 0x200; /* works _much_ faster */
dev->bulk_in_endpointAddr = endpoint->bEndpointAddress;
dev->bulk_in_buffer =
- kmalloc(IMGSIZE + buffer_size, GFP_KERNEL);
+ kmalloc(IMGSIZE + dev->bulk_in_size, GFP_KERNEL);
if (!dev->bulk_in_buffer) {
err("Unable to allocate input buffer.");
diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c
new file mode 100644
index 00000000000..66ec88354b9
--- /dev/null
+++ b/drivers/usb/misc/ldusb.c
@@ -0,0 +1,794 @@
+/**
+ * Generic USB driver for report based interrupt in/out devices
+ * like LD Didactic's USB devices. LD Didactic's USB devices are
+ * HID devices which do not use HID report definitons (they use
+ * raw interrupt in and our reports only for communication).
+ *
+ * This driver uses a ring buffer for time critical reading of
+ * interrupt in reports and provides read and write methods for
+ * raw interrupt reports (similar to the Windows HID driver).
+ * Devices based on the book USB COMPLETE by Jan Axelson may need
+ * such a compatibility to the Windows HID driver.
+ *
+ * Copyright (C) 2005 Michael Hund <mhund@ld-didactic.de>
+ *
+ * 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.
+ *
+ * Derived from Lego USB Tower driver
+ * Copyright (C) 2003 David Glance <advidgsf@sourceforge.net>
+ * 2001-2004 Juergen Stuber <starblue@users.sourceforge.net>
+ *
+ * V0.1 (mh) Initial version
+ * V0.11 (mh) Added raw support for HID 1.0 devices (no interrupt out endpoint)
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+#include <asm/uaccess.h>
+#include <linux/input.h>
+#include <linux/usb.h>
+#include <linux/poll.h>
+
+/* Define these values to match your devices */
+#define USB_VENDOR_ID_LD 0x0f11 /* USB Vendor ID of LD Didactic GmbH */
+#define USB_DEVICE_ID_CASSY 0x1000 /* USB Product ID for all CASSY-S modules */
+#define USB_DEVICE_ID_POCKETCASSY 0x1010 /* USB Product ID for Pocket-CASSY */
+#define USB_DEVICE_ID_MOBILECASSY 0x1020 /* USB Product ID for Mobile-CASSY */
+#define USB_DEVICE_ID_JWM 0x1080 /* USB Product ID for Joule and Wattmeter */
+#define USB_DEVICE_ID_DMMP 0x1081 /* USB Product ID for Digital Multimeter P (reserved) */
+#define USB_DEVICE_ID_UMIP 0x1090 /* USB Product ID for UMI P */
+#define USB_DEVICE_ID_VIDEOCOM 0x1200 /* USB Product ID for VideoCom */
+#define USB_DEVICE_ID_COM3LAB 0x2000 /* USB Product ID for COM3LAB */
+#define USB_DEVICE_ID_TELEPORT 0x2010 /* USB Product ID for Terminal Adapter */
+#define USB_DEVICE_ID_NETWORKANALYSER 0x2020 /* USB Product ID for Network Analyser */
+#define USB_DEVICE_ID_POWERCONTROL 0x2030 /* USB Product ID for Controlling device for Power Electronics */
+
+#define USB_VENDOR_ID_VERNIER 0x08f7
+#define USB_DEVICE_ID_VERNIER_LABPRO 0x0001
+#define USB_DEVICE_ID_VERNIER_GOTEMP 0x0002
+#define USB_DEVICE_ID_VERNIER_SKIP 0x0003
+#define USB_DEVICE_ID_VERNIER_CYCLOPS 0x0004
+
+
+#ifdef CONFIG_USB_DYNAMIC_MINORS
+#define USB_LD_MINOR_BASE 0
+#else
+#define USB_LD_MINOR_BASE 176
+#endif
+
+/* table of devices that work with this driver */
+static struct usb_device_id ld_usb_table [] = {
+ { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_CASSY) },
+ { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_POCKETCASSY) },
+ { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_MOBILECASSY) },
+ { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_JWM) },
+ { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_DMMP) },
+ { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_UMIP) },
+ { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_VIDEOCOM) },
+ { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_COM3LAB) },
+ { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_TELEPORT) },
+ { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_NETWORKANALYSER) },
+ { USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_POWERCONTROL) },
+ { USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
+ { USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
+ { USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
+ { USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
+ { } /* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, ld_usb_table);
+MODULE_VERSION("V0.11");
+MODULE_AUTHOR("Michael Hund <mhund@ld-didactic.de>");
+MODULE_DESCRIPTION("LD USB Driver");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("LD USB Devices");
+
+#ifdef CONFIG_USB_DEBUG
+ static int debug = 1;
+#else
+ static int debug = 0;
+#endif
+
+/* Use our own dbg macro */
+#define dbg_info(dev, format, arg...) do { if (debug) dev_info(dev , format , ## arg); } while (0)
+
+/* Module parameters */
+module_param(debug, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug enabled or not");
+
+/* All interrupt in transfers are collected in a ring buffer to
+ * avoid racing conditions and get better performance of the driver.
+ */
+static int ring_buffer_size = 128;
+module_param(ring_buffer_size, int, 0);
+MODULE_PARM_DESC(ring_buffer_size, "Read ring buffer size in reports");
+
+/* The write_buffer can contain more than one interrupt out transfer.
+ */
+static int write_buffer_size = 10;
+module_param(write_buffer_size, int, 0);
+MODULE_PARM_DESC(write_buffer_size, "Write buffer size in reports");
+
+/* As of kernel version 2.6.4 ehci-hcd uses an
+ * "only one interrupt transfer per frame" shortcut
+ * to simplify the scheduling of periodic transfers.
+ * This conflicts with our standard 1ms intervals for in and out URBs.
+ * We use default intervals of 2ms for in and 2ms for out transfers,
+ * which should be fast enough.
+ * Increase the interval to allow more devices that do interrupt transfers,
+ * or set to 1 to use the standard interval from the endpoint descriptors.
+ */
+static int min_interrupt_in_interval = 2;
+module_param(min_interrupt_in_interval, int, 0);
+MODULE_PARM_DESC(min_interrupt_in_interval, "Minimum interrupt in interval in ms");
+
+static int min_interrupt_out_interval = 2;
+module_param(min_interrupt_out_interval, int, 0);
+MODULE_PARM_DESC(min_interrupt_out_interval, "Minimum interrupt out interval in ms");
+
+/* Structure to hold all of our device specific stuff */
+struct ld_usb {
+ struct semaphore sem; /* locks this structure */
+ struct usb_interface* intf; /* save off the usb interface pointer */
+
+ int open_count; /* number of times this port has been opened */
+
+ char* ring_buffer;
+ unsigned int ring_head;
+ unsigned int ring_tail;
+
+ wait_queue_head_t read_wait;
+ wait_queue_head_t write_wait;
+
+ char* interrupt_in_buffer;
+ struct usb_endpoint_descriptor* interrupt_in_endpoint;
+ struct urb* interrupt_in_urb;
+ int interrupt_in_interval;
+ size_t interrupt_in_endpoint_size;
+ int interrupt_in_running;
+ int interrupt_in_done;
+
+ char* interrupt_out_buffer;
+ struct usb_endpoint_descriptor* interrupt_out_endpoint;
+ struct urb* interrupt_out_urb;
+ int interrupt_out_interval;
+ size_t interrupt_out_endpoint_size;
+ int interrupt_out_busy;
+};
+
+/* prevent races between open() and disconnect() */
+static DECLARE_MUTEX(disconnect_sem);
+
+static struct usb_driver ld_usb_driver;
+
+/**
+ * ld_usb_abort_transfers
+ * aborts transfers and frees associated data structures
+ */
+static void ld_usb_abort_transfers(struct ld_usb *dev)
+{
+ /* shutdown transfer */
+ if (dev->interrupt_in_running) {
+ dev->interrupt_in_running = 0;
+ if (dev->intf)
+ usb_kill_urb(dev->interrupt_in_urb);
+ }
+ if (dev->interrupt_out_busy)
+ if (dev->intf)
+ usb_kill_urb(dev->interrupt_out_urb);
+}
+
+/**
+ * ld_usb_delete
+ */
+static void ld_usb_delete(struct ld_usb *dev)
+{
+ ld_usb_abort_transfers(dev);
+
+ /* free data structures */
+ usb_free_urb(dev->interrupt_in_urb);
+ usb_free_urb(dev->interrupt_out_urb);
+ kfree(dev->ring_buffer);
+ kfree(dev->interrupt_in_buffer);
+ kfree(dev->interrupt_out_buffer);
+ kfree(dev);
+}
+
+/**
+ * ld_usb_interrupt_in_callback
+ */
+static void ld_usb_interrupt_in_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct ld_usb *dev = urb->context;
+ size_t *actual_buffer;
+ unsigned int next_ring_head;
+ int retval;
+
+ if (urb->status) {
+ if (urb->status == -ENOENT ||
+ urb->status == -ECONNRESET ||
+ urb->status == -ESHUTDOWN) {
+ goto exit;
+ } else {
+ dbg_info(&dev->intf->dev, "%s: nonzero status received: %d\n",
+ __FUNCTION__, urb->status);
+ goto resubmit; /* maybe we can recover */
+ }
+ }
+
+ if (urb->actual_length > 0) {
+ next_ring_head = (dev->ring_head+1) % ring_buffer_size;
+ if (next_ring_head != dev->ring_tail) {
+ actual_buffer = (size_t*)(dev->ring_buffer + dev->ring_head*(sizeof(size_t)+dev->interrupt_in_endpoint_size));
+ /* actual_buffer gets urb->actual_length + interrupt_in_buffer */
+ *actual_buffer = urb->actual_length;
+ memcpy(actual_buffer+1, dev->interrupt_in_buffer, urb->actual_length);
+ dev->ring_head = next_ring_head;
+ dbg_info(&dev->intf->dev, "%s: received %d bytes\n",
+ __FUNCTION__, urb->actual_length);
+ } else
+ dev_warn(&dev->intf->dev,
+ "Ring buffer overflow, %d bytes dropped\n",
+ urb->actual_length);
+ }
+
+resubmit:
+ /* resubmit if we're still running */
+ if (dev->interrupt_in_running && dev->intf) {
+ retval = usb_submit_urb(dev->interrupt_in_urb, GFP_ATOMIC);
+ if (retval)
+ dev_err(&dev->intf->dev,
+ "usb_submit_urb failed (%d)\n", retval);
+ }
+
+exit:
+ dev->interrupt_in_done = 1;
+ wake_up_interruptible(&dev->read_wait);
+}
+
+/**
+ * ld_usb_interrupt_out_callback
+ */
+static void ld_usb_interrupt_out_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct ld_usb *dev = urb->context;
+
+ /* sync/async unlink faults aren't errors */
+ if (urb->status && !(urb->status == -ENOENT ||
+ urb->status == -ECONNRESET ||
+ urb->status == -ESHUTDOWN))
+ dbg_info(&dev->intf->dev,
+ "%s - nonzero write interrupt status received: %d\n",
+ __FUNCTION__, urb->status);
+
+ dev->interrupt_out_busy = 0;
+ wake_up_interruptible(&dev->write_wait);
+}
+
+/**
+ * ld_usb_open
+ */
+static int ld_usb_open(struct inode *inode, struct file *file)
+{
+ struct ld_usb *dev;
+ int subminor;
+ int retval = 0;
+ struct usb_interface *interface;
+
+ nonseekable_open(inode, file);
+ subminor = iminor(inode);
+
+ down(&disconnect_sem);
+
+ interface = usb_find_interface(&ld_usb_driver, subminor);
+
+ if (!interface) {
+ err("%s - error, can't find device for minor %d\n",
+ __FUNCTION__, subminor);
+ retval = -ENODEV;
+ goto unlock_disconnect_exit;
+ }
+
+ dev = usb_get_intfdata(interface);
+
+ if (!dev) {
+ retval = -ENODEV;
+ goto unlock_disconnect_exit;
+ }
+
+ /* lock this device */
+ if (down_interruptible(&dev->sem)) {
+ retval = -ERESTARTSYS;
+ goto unlock_disconnect_exit;
+ }
+
+ /* allow opening only once */
+ if (dev->open_count) {
+ retval = -EBUSY;
+ goto unlock_exit;
+ }
+ dev->open_count = 1;
+
+ /* initialize in direction */
+ dev->ring_head = 0;
+ dev->ring_tail = 0;
+ usb_fill_int_urb(dev->interrupt_in_urb,
+ interface_to_usbdev(interface),
+ usb_rcvintpipe(interface_to_usbdev(interface),
+ dev->interrupt_in_endpoint->bEndpointAddress),
+ dev->interrupt_in_buffer,
+ dev->interrupt_in_endpoint_size,
+ ld_usb_interrupt_in_callback,
+ dev,
+ dev->interrupt_in_interval);
+
+ dev->interrupt_in_running = 1;
+ dev->interrupt_in_done = 0;
+
+ retval = usb_submit_urb(dev->interrupt_in_urb, GFP_KERNEL);
+ if (retval) {
+ dev_err(&interface->dev, "Couldn't submit interrupt_in_urb %d\n", retval);
+ dev->interrupt_in_running = 0;
+ dev->open_count = 0;
+ goto unlock_exit;
+ }
+
+ /* save device in the file's private structure */
+ file->private_data = dev;
+
+unlock_exit:
+ up(&dev->sem);
+
+unlock_disconnect_exit:
+ up(&disconnect_sem);
+
+ return retval;
+}
+
+/**
+ * ld_usb_release
+ */
+static int ld_usb_release(struct inode *inode, struct file *file)
+{
+ struct ld_usb *dev;
+ int retval = 0;
+
+ dev = file->private_data;
+
+ if (dev == NULL) {
+ retval = -ENODEV;
+ goto exit;
+ }
+
+ if (down_interruptible(&dev->sem)) {
+ retval = -ERESTARTSYS;
+ goto exit;
+ }
+
+ if (dev->open_count != 1) {
+ retval = -ENODEV;
+ goto unlock_exit;
+ }
+ if (dev->intf == NULL) {
+ /* the device was unplugged before the file was released */
+ up(&dev->sem);
+ /* unlock here as ld_usb_delete frees dev */
+ ld_usb_delete(dev);
+ goto exit;
+ }
+
+ /* wait until write transfer is finished */
+ if (dev->interrupt_out_busy)
+ wait_event_interruptible_timeout(dev->write_wait, !dev->interrupt_out_busy, 2 * HZ);
+ ld_usb_abort_transfers(dev);
+ dev->open_count = 0;
+
+unlock_exit:
+ up(&dev->sem);
+
+exit:
+ return retval;
+}
+
+/**
+ * ld_usb_poll
+ */
+static unsigned int ld_usb_poll(struct file *file, poll_table *wait)
+{
+ struct ld_usb *dev;
+ unsigned int mask = 0;
+
+ dev = file->private_data;
+
+ poll_wait(file, &dev->read_wait, wait);
+ poll_wait(file, &dev->write_wait, wait);
+
+ if (dev->ring_head != dev->ring_tail)
+ mask |= POLLIN | POLLRDNORM;
+ if (!dev->interrupt_out_busy)
+ mask |= POLLOUT | POLLWRNORM;
+
+ return mask;
+}
+
+/**
+ * ld_usb_read
+ */
+static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ struct ld_usb *dev;
+ size_t *actual_buffer;
+ size_t bytes_to_read;
+ int retval = 0;
+
+ dev = file->private_data;
+
+ /* verify that we actually have some data to read */
+ if (count == 0)
+ goto exit;
+
+ /* lock this object */
+ if (down_interruptible(&dev->sem)) {
+ retval = -ERESTARTSYS;
+ goto exit;
+ }
+
+ /* verify that the device wasn't unplugged */
+ if (dev->intf == NULL) {
+ retval = -ENODEV;
+ err("No device or device unplugged %d\n", retval);
+ goto unlock_exit;
+ }
+
+ /* wait for data */
+ if (dev->ring_head == dev->ring_tail) {
+ if (file->f_flags & O_NONBLOCK) {
+ retval = -EAGAIN;
+ goto unlock_exit;
+ }
+ retval = wait_event_interruptible(dev->read_wait, dev->interrupt_in_done);
+ if (retval < 0)
+ goto unlock_exit;
+ }
+
+ /* actual_buffer contains actual_length + interrupt_in_buffer */
+ actual_buffer = (size_t*)(dev->ring_buffer + dev->ring_tail*(sizeof(size_t)+dev->interrupt_in_endpoint_size));
+ bytes_to_read = min(count, *actual_buffer);
+ if (bytes_to_read < *actual_buffer)
+ dev_warn(&dev->intf->dev, "Read buffer overflow, %d bytes dropped\n",
+ *actual_buffer-bytes_to_read);
+
+ /* copy one interrupt_in_buffer from ring_buffer into userspace */
+ if (copy_to_user(buffer, actual_buffer+1, bytes_to_read)) {
+ retval = -EFAULT;
+ goto unlock_exit;
+ }
+ dev->ring_tail = (dev->ring_tail+1) % ring_buffer_size;
+
+ retval = bytes_to_read;
+
+unlock_exit:
+ /* unlock the device */
+ up(&dev->sem);
+
+exit:
+ return retval;
+}
+
+/**
+ * ld_usb_write
+ */
+static ssize_t ld_usb_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct ld_usb *dev;
+ size_t bytes_to_write;
+ int retval = 0;
+
+ dev = file->private_data;
+
+ /* verify that we actually have some data to write */
+ if (count == 0)
+ goto exit;
+
+ /* lock this object */
+ if (down_interruptible(&dev->sem)) {
+ retval = -ERESTARTSYS;
+ goto exit;
+ }
+
+ /* verify that the device wasn't unplugged */
+ if (dev->intf == NULL) {
+ retval = -ENODEV;
+ err("No device or device unplugged %d\n", retval);
+ goto unlock_exit;
+ }
+
+ /* wait until previous transfer is finished */
+ if (dev->interrupt_out_busy) {
+ if (file->f_flags & O_NONBLOCK) {
+ retval = -EAGAIN;
+ goto unlock_exit;
+ }
+ retval = wait_event_interruptible(dev->write_wait, !dev->interrupt_out_busy);
+ if (retval < 0) {
+ goto unlock_exit;
+ }
+ }
+
+ /* write the data into interrupt_out_buffer from userspace */
+ bytes_to_write = min(count, write_buffer_size*dev->interrupt_out_endpoint_size);
+ if (bytes_to_write < count)
+ dev_warn(&dev->intf->dev, "Write buffer overflow, %d bytes dropped\n",count-bytes_to_write);
+ dbg_info(&dev->intf->dev, "%s: count = %d, bytes_to_write = %d\n", __FUNCTION__, count, bytes_to_write);
+
+ if (copy_from_user(dev->interrupt_out_buffer, buffer, bytes_to_write)) {
+ retval = -EFAULT;
+ goto unlock_exit;
+ }
+
+ if (dev->interrupt_out_endpoint == NULL) {
+ /* try HID_REQ_SET_REPORT=9 on control_endpoint instead of interrupt_out_endpoint */
+ retval = usb_control_msg(interface_to_usbdev(dev->intf),
+ usb_sndctrlpipe(interface_to_usbdev(dev->intf), 0),
+ 9,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
+ 1 << 8, 0,
+ dev->interrupt_out_buffer,
+ bytes_to_write,
+ USB_CTRL_SET_TIMEOUT * HZ);
+ if (retval < 0)
+ err("Couldn't submit HID_REQ_SET_REPORT %d\n", retval);
+ goto unlock_exit;
+ }
+
+ /* send off the urb */
+ usb_fill_int_urb(dev->interrupt_out_urb,
+ interface_to_usbdev(dev->intf),
+ usb_sndintpipe(interface_to_usbdev(dev->intf),
+ dev->interrupt_out_endpoint->bEndpointAddress),
+ dev->interrupt_out_buffer,
+ bytes_to_write,
+ ld_usb_interrupt_out_callback,
+ dev,
+ dev->interrupt_out_interval);
+
+ dev->interrupt_out_busy = 1;
+ wmb();
+
+ retval = usb_submit_urb(dev->interrupt_out_urb, GFP_KERNEL);
+ if (retval) {
+ dev->interrupt_out_busy = 0;
+ err("Couldn't submit interrupt_out_urb %d\n", retval);
+ goto unlock_exit;
+ }
+ retval = bytes_to_write;
+
+unlock_exit:
+ /* unlock the device */
+ up(&dev->sem);
+
+exit:
+ return retval;
+}
+
+/* file operations needed when we register this driver */
+static struct file_operations ld_usb_fops = {
+ .owner = THIS_MODULE,
+ .read = ld_usb_read,
+ .write = ld_usb_write,
+ .open = ld_usb_open,
+ .release = ld_usb_release,
+ .poll = ld_usb_poll,
+};
+
+/*
+ * usb class driver info in order to get a minor number from the usb core,
+ * and to have the device registered with devfs and the driver core
+ */
+static struct usb_class_driver ld_usb_class = {
+ .name = "ldusb%d",
+ .fops = &ld_usb_fops,
+ .minor_base = USB_LD_MINOR_BASE,
+};
+
+/**
+ * ld_usb_probe
+ *
+ * Called by the usb core when a new device is connected that it thinks
+ * this driver might be interested in.
+ */
+static int ld_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct ld_usb *dev = NULL;
+ struct usb_host_interface *iface_desc;
+ struct usb_endpoint_descriptor *endpoint;
+ char *buffer;
+ int i;
+ int retval = -ENOMEM;
+
+ /* allocate memory for our device state and intialize it */
+
+ dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
+ dev_err(&intf->dev, "Out of memory\n");
+ goto exit;
+ }
+ memset(dev, 0x00, sizeof(*dev));
+ init_MUTEX(&dev->sem);
+ dev->intf = intf;
+ init_waitqueue_head(&dev->read_wait);
+ init_waitqueue_head(&dev->write_wait);
+
+ /* workaround for early firmware versions on fast computers */
+ if ((le16_to_cpu(udev->descriptor.idVendor) == USB_VENDOR_ID_LD) &&
+ ((le16_to_cpu(udev->descriptor.idProduct) == USB_DEVICE_ID_CASSY) ||
+ (le16_to_cpu(udev->descriptor.idProduct) == USB_DEVICE_ID_COM3LAB)) &&
+ (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x103)) {
+ buffer = kmalloc(256, GFP_KERNEL);
+ /* usb_string makes SETUP+STALL to leave always ControlReadLoop */
+ usb_string(udev, 255, buffer, 256);
+ kfree(buffer);
+ }
+
+ iface_desc = intf->cur_altsetting;
+
+ /* set up the endpoint information */
+ for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+ endpoint = &iface_desc->endpoint[i].desc;
+
+ if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) &&
+ ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) {
+ dev->interrupt_in_endpoint = endpoint;
+ }
+
+ if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) &&
+ ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) {
+ dev->interrupt_out_endpoint = endpoint;
+ }
+ }
+ if (dev->interrupt_in_endpoint == NULL) {
+ dev_err(&intf->dev, "Interrupt in endpoint not found\n");
+ goto error;
+ }
+ if (dev->interrupt_out_endpoint == NULL)
+ dev_warn(&intf->dev, "Interrupt out endpoint not found (using control endpoint instead)\n");
+
+ dev->interrupt_in_endpoint_size = le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize);
+ dev->ring_buffer = kmalloc(ring_buffer_size*(sizeof(size_t)+dev->interrupt_in_endpoint_size), GFP_KERNEL);
+ if (!dev->ring_buffer) {
+ dev_err(&intf->dev, "Couldn't allocate ring_buffer\n");
+ goto error;
+ }
+ dev->interrupt_in_buffer = kmalloc(dev->interrupt_in_endpoint_size, GFP_KERNEL);
+ if (!dev->interrupt_in_buffer) {
+ dev_err(&intf->dev, "Couldn't allocate interrupt_in_buffer\n");
+ goto error;
+ }
+ dev->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->interrupt_in_urb) {
+ dev_err(&intf->dev, "Couldn't allocate interrupt_in_urb\n");
+ goto error;
+ }
+ dev->interrupt_out_endpoint_size = dev->interrupt_out_endpoint ? le16_to_cpu(dev->interrupt_out_endpoint->wMaxPacketSize) :
+ udev->descriptor.bMaxPacketSize0;
+ dev->interrupt_out_buffer = kmalloc(write_buffer_size*dev->interrupt_out_endpoint_size, GFP_KERNEL);
+ if (!dev->interrupt_out_buffer) {
+ dev_err(&intf->dev, "Couldn't allocate interrupt_out_buffer\n");
+ goto error;
+ }
+ dev->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->interrupt_out_urb) {
+ dev_err(&intf->dev, "Couldn't allocate interrupt_out_urb\n");
+ goto error;
+ }
+ dev->interrupt_in_interval = min_interrupt_in_interval > dev->interrupt_in_endpoint->bInterval ? min_interrupt_in_interval : dev->interrupt_in_endpoint->bInterval;
+ if (dev->interrupt_out_endpoint)
+ dev->interrupt_out_interval = min_interrupt_out_interval > dev->interrupt_out_endpoint->bInterval ? min_interrupt_out_interval : dev->interrupt_out_endpoint->bInterval;
+
+ /* we can register the device now, as it is ready */
+ usb_set_intfdata(intf, dev);
+
+ retval = usb_register_dev(intf, &ld_usb_class);
+ if (retval) {
+ /* something prevented us from registering this driver */
+ dev_err(&intf->dev, "Not able to get a minor for this device.\n");
+ usb_set_intfdata(intf, NULL);
+ goto error;
+ }
+
+ /* let the user know what node this device is now attached to */
+ dev_info(&intf->dev, "LD USB Device #%d now attached to major %d minor %d\n",
+ (intf->minor - USB_LD_MINOR_BASE), USB_MAJOR, intf->minor);
+
+exit:
+ return retval;
+
+error:
+ ld_usb_delete(dev);
+
+ return retval;
+}
+
+/**
+ * ld_usb_disconnect
+ *
+ * Called by the usb core when the device is removed from the system.
+ */
+static void ld_usb_disconnect(struct usb_interface *intf)
+{
+ struct ld_usb *dev;
+ int minor;
+
+ down(&disconnect_sem);
+
+ dev = usb_get_intfdata(intf);
+ usb_set_intfdata(intf, NULL);
+
+ down(&dev->sem);
+
+ minor = intf->minor;
+
+ /* give back our minor */
+ usb_deregister_dev(intf, &ld_usb_class);
+
+ /* if the device is not opened, then we clean up right now */
+ if (!dev->open_count) {
+ up(&dev->sem);
+ ld_usb_delete(dev);
+ } else {
+ dev->intf = NULL;
+ up(&dev->sem);
+ }
+
+ up(&disconnect_sem);
+
+ dev_info(&intf->dev, "LD USB Device #%d now disconnected\n",
+ (minor - USB_LD_MINOR_BASE));
+}
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver ld_usb_driver = {
+ .owner = THIS_MODULE,
+ .name = "ldusb",
+ .probe = ld_usb_probe,
+ .disconnect = ld_usb_disconnect,
+ .id_table = ld_usb_table,
+};
+
+/**
+ * ld_usb_init
+ */
+static int __init ld_usb_init(void)
+{
+ int retval;
+
+ /* register this driver with the USB subsystem */
+ retval = usb_register(&ld_usb_driver);
+ if (retval)
+ err("usb_register failed for the "__FILE__" driver. Error number %d\n", retval);
+
+ return retval;
+}
+
+/**
+ * ld_usb_exit
+ */
+static void __exit ld_usb_exit(void)
+{
+ /* deregister this driver with the USB subsystem */
+ usb_deregister(&ld_usb_driver);
+}
+
+module_init(ld_usb_init);
+module_exit(ld_usb_exit);
+
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 3104f28f6aa..cda7249a90b 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -461,7 +461,7 @@ static int perform_sglist (
static unsigned realworld = 1;
module_param (realworld, uint, 0);
-MODULE_PARM_DESC (realworld, "clear to demand stricter ch9 compliance");
+MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance");
static int get_altsetting (struct usbtest_dev *dev)
{
@@ -604,9 +604,8 @@ static int ch9_postconfig (struct usbtest_dev *dev)
USB_DIR_IN | USB_RECIP_DEVICE,
0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
if (retval != 1 || dev->buf [0] != expected) {
- dev_dbg (&iface->dev,
- "get config --> %d (%d)\n", retval,
- expected);
+ dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n",
+ retval, dev->buf[0], expected);
return (retval < 0) ? retval : -EDOM;
}
}
@@ -1243,7 +1242,7 @@ static int ctrl_out (struct usbtest_dev *dev,
char *what = "?";
struct usb_device *udev;
- if (length > 0xffff || vary >= length)
+ if (length < 1 || length > 0xffff || vary >= length)
return -EINVAL;
buf = kmalloc(length, SLAB_KERNEL);
@@ -1266,6 +1265,11 @@ static int ctrl_out (struct usbtest_dev *dev,
0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
if (retval != len) {
what = "write";
+ if (retval >= 0) {
+ INFO(dev, "ctrl_out, wlen %d (expected %d)\n",
+ retval, len);
+ retval = -EBADMSG;
+ }
break;
}
@@ -1275,6 +1279,11 @@ static int ctrl_out (struct usbtest_dev *dev,
0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
if (retval != len) {
what = "read";
+ if (retval >= 0) {
+ INFO(dev, "ctrl_out, rlen %d (expected %d)\n",
+ retval, len);
+ retval = -EBADMSG;
+ }
break;
}
@@ -1293,8 +1302,13 @@ static int ctrl_out (struct usbtest_dev *dev,
}
len += vary;
+
+ /* [real world] the "zero bytes IN" case isn't really used.
+ * hardware can easily trip up in this wierd case, since its
+ * status stage is IN, not OUT like other ep0in transfers.
+ */
if (len > length)
- len = 0;
+ len = realworld ? 1 : 0;
}
if (retval < 0)
@@ -1519,6 +1533,11 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
if (down_interruptible (&dev->sem))
return -ERESTARTSYS;
+ if (intf->dev.power.power_state != PMSG_ON) {
+ up (&dev->sem);
+ return -EHOSTUNREACH;
+ }
+
/* some devices, like ez-usb default devices, need a non-default
* altsetting to have any active endpoints. some tests change
* altsettings; force a default so most tests don't need to check.
@@ -1762,8 +1781,10 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
case 14:
if (!dev->info->ctrl_out)
break;
- dev_dbg (&intf->dev, "TEST 14: %d ep0out, 0..%d vary %d\n",
- param->iterations, param->length, param->vary);
+ dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
+ param->iterations,
+ realworld ? 1 : 0, param->length,
+ param->vary);
retval = ctrl_out (dev, param->iterations,
param->length, param->vary);
break;
@@ -1927,6 +1948,27 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
return 0;
}
+static int usbtest_suspend (struct usb_interface *intf, pm_message_t message)
+{
+ struct usbtest_dev *dev = usb_get_intfdata (intf);
+
+ down (&dev->sem);
+ intf->dev.power.power_state = PMSG_SUSPEND;
+ up (&dev->sem);
+ return 0;
+}
+
+static int usbtest_resume (struct usb_interface *intf)
+{
+ struct usbtest_dev *dev = usb_get_intfdata (intf);
+
+ down (&dev->sem);
+ intf->dev.power.power_state = PMSG_ON;
+ up (&dev->sem);
+ return 0;
+}
+
+
static void usbtest_disconnect (struct usb_interface *intf)
{
struct usbtest_dev *dev = usb_get_intfdata (intf);
@@ -2115,6 +2157,8 @@ static struct usb_driver usbtest_driver = {
.probe = usbtest_probe,
.ioctl = usbtest_ioctl,
.disconnect = usbtest_disconnect,
+ .suspend = usbtest_suspend,
+ .resume = usbtest_resume,
};
/*-------------------------------------------------------------------------*/
generated by cgit (git 2.34.1) at 2024-11-11 07:13:09 +0000