[PATCH] drivers/usb/input: convert to dynamic input_dev allocation
Input: convert drivers/iusb/input to dynamic input_dev allocation
This is required for input_dev sysfs integration
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/input/keyspan_remote.c b/drivers/usb/input/keyspan_remote.c
index 99de1b3..5b8d65f 100644
--- a/drivers/usb/input/keyspan_remote.c
+++ b/drivers/usb/input/keyspan_remote.c
@@ -20,6 +20,7 @@
#include <linux/moduleparam.h>
#include <linux/input.h>
#include <linux/usb.h>
+#include <linux/usb_input.h>
#define DRIVER_VERSION "v0.1"
#define DRIVER_AUTHOR "Michael Downey <downey@zymeta.com>"
@@ -75,7 +76,7 @@
char name[128];
char phys[64];
struct usb_device* udev;
- struct input_dev input;
+ struct input_dev *input;
struct usb_interface* interface;
struct usb_endpoint_descriptor* in_endpoint;
struct urb* irq_urb;
@@ -136,12 +137,11 @@
*/
static void keyspan_print(struct usb_keyspan* dev) /*unsigned char* data)*/
{
- char codes[4*RECV_SIZE];
+ char codes[4 * RECV_SIZE];
int i;
- for (i = 0; i < RECV_SIZE; i++) {
- snprintf(codes+i*3, 4, "%02x ", dev->in_buffer[i]);
- }
+ for (i = 0; i < RECV_SIZE; i++)
+ snprintf(codes + i * 3, 4, "%02x ", dev->in_buffer[i]);
dev_info(&dev->udev->dev, "%s\n", codes);
}
@@ -153,7 +153,7 @@
static int keyspan_load_tester(struct usb_keyspan* dev, int bits_needed)
{
if (dev->data.bits_left >= bits_needed)
- return(0);
+ return 0;
/*
* Somehow we've missed the last message. The message will be repeated
@@ -162,7 +162,7 @@
if (dev->data.pos >= dev->data.len) {
dev_dbg(&dev->udev, "%s - Error ran out of data. pos: %d, len: %d\n",
__FUNCTION__, dev->data.pos, dev->data.len);
- return(-1);
+ return -1;
}
/* Load as much as we can into the tester. */
@@ -172,7 +172,7 @@
dev->data.bits_left += 8;
}
- return(0);
+ return 0;
}
/*
@@ -311,10 +311,10 @@
__FUNCTION__, message.system, message.button, message.toggle);
if (message.toggle != remote->toggle) {
- input_regs(&remote->input, regs);
- input_report_key(&remote->input, keyspan_key_table[message.button], 1);
- input_report_key(&remote->input, keyspan_key_table[message.button], 0);
- input_sync(&remote->input);
+ input_regs(remote->input, regs);
+ input_report_key(remote->input, keyspan_key_table[message.button], 1);
+ input_report_key(remote->input, keyspan_key_table[message.button], 0);
+ input_sync(remote->input);
remote->toggle = message.toggle;
}
@@ -397,14 +397,9 @@
{
struct usb_keyspan *remote = dev->private;
- if (remote->open++)
- return 0;
-
remote->irq_urb->dev = remote->udev;
- if (usb_submit_urb(remote->irq_urb, GFP_KERNEL)) {
- remote->open--;
+ if (usb_submit_urb(remote->irq_urb, GFP_KERNEL))
return -EIO;
- }
return 0;
}
@@ -413,8 +408,26 @@
{
struct usb_keyspan *remote = dev->private;
- if (!--remote->open)
- usb_kill_urb(remote->irq_urb);
+ usb_kill_urb(remote->irq_urb);
+}
+
+static struct usb_endpoint_descriptor *keyspan_get_in_endpoint(struct usb_host_interface *iface)
+{
+
+ struct usb_endpoint_descriptor *endpoint;
+ int i;
+
+ for (i = 0; i < iface->desc.bNumEndpoints; ++i) {
+ endpoint = &iface->endpoint[i].desc;
+
+ if ((endpoint->bEndpointAddress & USB_DIR_IN) &&
+ ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) {
+ /* we found our interrupt in endpoint */
+ return endpoint;
+ }
+ }
+
+ return NULL;
}
/*
@@ -422,110 +435,78 @@
*/
static int keyspan_probe(struct usb_interface *interface, const struct usb_device_id *id)
{
- int i;
- int retval = -ENOMEM;
- char path[64];
- char *buf;
- struct usb_keyspan *remote = NULL;
- struct usb_host_interface *iface_desc;
+ struct usb_device *udev = interface_to_usbdev(interface);
struct usb_endpoint_descriptor *endpoint;
- struct usb_device *udev = usb_get_dev(interface_to_usbdev(interface));
+ struct usb_keyspan *remote;
+ struct input_dev *input_dev;
+ int i, retval;
- /* allocate memory for our device state and initialize it */
- remote = kmalloc(sizeof(*remote), GFP_KERNEL);
- if (remote == NULL) {
- err("Out of memory\n");
- goto error;
+ endpoint = keyspan_get_in_endpoint(interface->cur_altsetting);
+ if (!endpoint)
+ return -ENODEV;
+
+ remote = kzalloc(sizeof(*remote), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!remote || !input_dev) {
+ retval = -ENOMEM;
+ goto fail1;
}
- memset(remote, 0x00, sizeof(*remote));
remote->udev = udev;
+ remote->input = input_dev;
remote->interface = interface;
+ remote->in_endpoint = endpoint;
remote->toggle = -1; /* Set to -1 so we will always not match the toggle from the first remote message. */
- /* set up the endpoint information */
- /* use only the first in interrupt endpoint */
- iface_desc = interface->cur_altsetting;
- for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
- endpoint = &iface_desc->endpoint[i].desc;
-
- if (!remote->in_endpoint &&
- (endpoint->bEndpointAddress & USB_DIR_IN) &&
- ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) {
- /* we found our interrupt in endpoint */
- remote->in_endpoint = endpoint;
-
- remote->in_buffer = usb_buffer_alloc(remote->udev, RECV_SIZE, SLAB_ATOMIC, &remote->in_dma);
- if (!remote->in_buffer) {
- retval = -ENOMEM;
- goto error;
- }
- }
- }
-
- if (!remote->in_endpoint) {
- err("Could not find interrupt input endpoint.\n");
- retval = -ENODEV;
- goto error;
+ remote->in_buffer = usb_buffer_alloc(udev, RECV_SIZE, SLAB_ATOMIC, &remote->in_dma);
+ if (!remote->in_buffer) {
+ retval = -ENOMEM;
+ goto fail1;
}
remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!remote->irq_urb) {
- err("Failed to allocate urb.\n");
retval = -ENOMEM;
- goto error;
+ goto fail2;
}
- retval = keyspan_setup(remote->udev);
+ retval = keyspan_setup(udev);
if (retval) {
- err("Failed to setup device.\n");
retval = -ENODEV;
- goto error;
+ goto fail3;
}
- /*
- * Setup the input system with the bits we are going to be reporting
- */
- remote->input.evbit[0] = BIT(EV_KEY); /* We will only report KEY events. */
- for (i = 0; i < 32; ++i) {
- if (keyspan_key_table[i] != KEY_RESERVED) {
- set_bit(keyspan_key_table[i], remote->input.keybit);
- }
+ if (udev->manufacturer)
+ strlcpy(remote->name, udev->manufacturer, sizeof(remote->name));
+
+ if (udev->product) {
+ if (udev->manufacturer)
+ strlcat(remote->name, " ", sizeof(remote->name));
+ strlcat(remote->name, udev->product, sizeof(remote->name));
}
- remote->input.private = remote;
- remote->input.open = keyspan_open;
- remote->input.close = keyspan_close;
-
- usb_make_path(remote->udev, path, 64);
- sprintf(remote->phys, "%s/input0", path);
-
- remote->input.name = remote->name;
- remote->input.phys = remote->phys;
- remote->input.id.bustype = BUS_USB;
- remote->input.id.vendor = le16_to_cpu(remote->udev->descriptor.idVendor);
- remote->input.id.product = le16_to_cpu(remote->udev->descriptor.idProduct);
- remote->input.id.version = le16_to_cpu(remote->udev->descriptor.bcdDevice);
-
- if (!(buf = kmalloc(63, GFP_KERNEL))) {
- usb_buffer_free(remote->udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
- kfree(remote);
- return -ENOMEM;
- }
-
- if (remote->udev->descriptor.iManufacturer &&
- usb_string(remote->udev, remote->udev->descriptor.iManufacturer, buf, 63) > 0)
- strcat(remote->name, buf);
-
- if (remote->udev->descriptor.iProduct &&
- usb_string(remote->udev, remote->udev->descriptor.iProduct, buf, 63) > 0)
- sprintf(remote->name, "%s %s", remote->name, buf);
-
if (!strlen(remote->name))
- sprintf(remote->name, "USB Keyspan Remote %04x:%04x",
- remote->input.id.vendor, remote->input.id.product);
+ snprintf(remote->name, sizeof(remote->name),
+ "USB Keyspan Remote %04x:%04x",
+ le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct));
- kfree(buf);
+ usb_make_path(udev, remote->phys, sizeof(remote->phys));
+ strlcat(remote->phys, "/input0", sizeof(remote->phys));
+
+ input_dev->name = remote->name;
+ input_dev->phys = remote->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->cdev.dev = &interface->dev;
+
+ input_dev->evbit[0] = BIT(EV_KEY); /* We will only report KEY events. */
+ for (i = 0; i < ARRAY_SIZE(keyspan_key_table); i++)
+ if (keyspan_key_table[i] != KEY_RESERVED)
+ set_bit(keyspan_key_table[i], input_dev->keybit);
+
+ input_dev->private = remote;
+ input_dev->open = keyspan_open;
+ input_dev->close = keyspan_close;
/*
* Initialize the URB to access the device. The urb gets sent to the device in keyspan_open()
@@ -538,27 +519,17 @@
remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
/* we can register the device now, as it is ready */
- input_register_device(&remote->input);
+ input_register_device(remote->input);
/* save our data pointer in this interface device */
usb_set_intfdata(interface, remote);
- /* let the user know what node this device is now attached to */
- info("connected: %s on %s", remote->name, path);
return 0;
-error:
- /*
- * In case of error we need to clean up any allocated buffers
- */
- if (remote->irq_urb)
- usb_free_urb(remote->irq_urb);
-
- if (remote->in_buffer)
- usb_buffer_free(remote->udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
-
- if (remote)
- kfree(remote);
+ fail3: usb_free_urb(remote->irq_urb);
+ fail2: usb_buffer_free(udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
+ fail1: kfree(remote);
+ input_free_device(input_dev);
return retval;
}
@@ -570,23 +541,16 @@
{
struct usb_keyspan *remote;
- /* prevent keyspan_open() from racing keyspan_disconnect() */
- lock_kernel();
-
remote = usb_get_intfdata(interface);
usb_set_intfdata(interface, NULL);
if (remote) { /* We have a valid driver structure so clean up everything we allocated. */
- input_unregister_device(&remote->input);
+ input_unregister_device(remote->input);
usb_kill_urb(remote->irq_urb);
usb_free_urb(remote->irq_urb);
- usb_buffer_free(interface_to_usbdev(interface), RECV_SIZE, remote->in_buffer, remote->in_dma);
+ usb_buffer_free(remote->udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
kfree(remote);
}
-
- unlock_kernel();
-
- info("USB Keyspan now disconnected");
}
/*