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Date: Fri, 30 Nov 2012 13:54:13 -0800
From: Chris Moeller <kode54@...il.com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: Jiri Kosina <jkosina@...e.cz>, linux-input@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
Chris Moeller <kode54@...il.com>
Subject: [PATCH v2 1/1] Input: xpad - Implement wireless controller LED
setting and fix connect time LED setting
Signed-off-by: Chris Moeller <kode54@...il.com>
---
diff -urpN a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
--- a/drivers/input/joystick/xpad.c 2012-11-30 12:33:10.604607590 -0800
+++ b/drivers/input/joystick/xpad.c 2012-11-30 12:41:19.374756212 -0800
@@ -260,13 +260,12 @@ struct usb_xpad {
int pad_present;
+ int interface_number;
+
struct urb *irq_in; /* urb for interrupt in report */
unsigned char *idata; /* input data */
dma_addr_t idata_dma;
- struct urb *bulk_out;
- unsigned char *bdata;
-
#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
struct urb *irq_out; /* urb for interrupt out report */
unsigned char *odata; /* output data */
@@ -427,6 +426,33 @@ static void xpad360_process_packet(struc
}
/*
+ * xpad360w_send_led_command
+ *
+ * Sends an LED state change command without any mutex locking. It is designed
+ * for private use, or by public interfaces which have already requested the
+ * appropriate locks.
+ *
+ */
+
+static void xpad360w_send_led_command(struct usb_xpad *xpad, int command)
+{
+ xpad->odata[0] = 0x00;
+ xpad->odata[1] = 0x00;
+ xpad->odata[2] = 0x08;
+ xpad->odata[3] = 0x40 + command;
+ xpad->odata[4] = 0x00;
+ xpad->odata[5] = 0x00;
+ xpad->odata[6] = 0x00;
+ xpad->odata[7] = 0x00;
+ xpad->odata[8] = 0x00;
+ xpad->odata[9] = 0x00;
+ xpad->odata[10] = 0x00;
+ xpad->odata[11] = 0x00;
+ xpad->irq_out->transfer_buffer_length = 12;
+ usb_submit_urb(xpad->irq_out, GFP_KERNEL);
+}
+
+/*
* xpad360w_process_packet
*
* Completes a request by converting the data into events for the
@@ -447,7 +473,7 @@ static void xpad360w_process_packet(stru
if (data[0] & 0x08) {
if (data[1] & 0x80) {
xpad->pad_present = 1;
- usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
+ xpad360w_send_led_command(xpad, 2 + (xpad->interface_number & 6) / 2);
} else
xpad->pad_present = 0;
}
@@ -502,28 +528,6 @@ exit:
__func__, retval);
}
-static void xpad_bulk_out(struct urb *urb)
-{
- struct usb_xpad *xpad = urb->context;
- struct device *dev = &xpad->intf->dev;
-
- switch (urb->status) {
- case 0:
- /* success */
- break;
- case -ECONNRESET:
- case -ENOENT:
- case -ESHUTDOWN:
- /* this urb is terminated, clean up */
- dev_dbg(dev, "%s - urb shutting down with status: %d\n",
- __func__, urb->status);
- break;
- default:
- dev_dbg(dev, "%s - nonzero urb status received: %d\n",
- __func__, urb->status);
- }
-}
-
#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
static void xpad_irq_out(struct urb *urb)
{
@@ -704,14 +708,24 @@ struct xpad_led {
static void xpad_send_led_command(struct usb_xpad *xpad, int command)
{
- if (command >= 0 && command < 14) {
- mutex_lock(&xpad->odata_mutex);
- xpad->odata[0] = 0x01;
- xpad->odata[1] = 0x03;
- xpad->odata[2] = command;
- xpad->irq_out->transfer_buffer_length = 3;
- usb_submit_urb(xpad->irq_out, GFP_KERNEL);
- mutex_unlock(&xpad->odata_mutex);
+ if (xpad->xtype == XTYPE_XBOX || xpad->xtype == XTYPE_XBOX360) {
+ if (command >= 0 && command < 14) {
+ mutex_lock(&xpad->odata_mutex);
+ xpad->odata[0] = 0x01;
+ xpad->odata[1] = 0x03;
+ xpad->odata[2] = command;
+ xpad->irq_out->transfer_buffer_length = 3;
+ usb_submit_urb(xpad->irq_out, GFP_KERNEL);
+ mutex_unlock(&xpad->odata_mutex);
+ }
+ } else if (xpad->xtype == XTYPE_XBOX360W) {
+ if (command >= 0 && command < 17) {
+ if (command == 16)
+ command = 2 + (xpad->interface_number & 6) / 2;
+ mutex_lock(&xpad->odata_mutex);
+ xpad360w_send_led_command(xpad, command);
+ mutex_unlock(&xpad->odata_mutex);
+ }
}
}
@@ -732,7 +746,7 @@ static int xpad_led_probe(struct usb_xpa
struct led_classdev *led_cdev;
int error;
- if (xpad->xtype != XTYPE_XBOX360)
+ if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX360W)
return 0;
xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
@@ -758,7 +772,8 @@ static int xpad_led_probe(struct usb_xpa
/*
* Light up the segment corresponding to controller number
*/
- xpad_send_led_command(xpad, (led_no % 4) + 2);
+ if (xpad->xtype == XTYPE_XBOX360)
+ xpad_send_led_command(xpad, (led_no % 4) + 2);
return 0;
}
@@ -960,42 +975,7 @@ static int xpad_probe(struct usb_interfa
usb_set_intfdata(intf, xpad);
if (xpad->xtype == XTYPE_XBOX360W) {
- /*
- * Setup the message to set the LEDs on the
- * controller when it shows up
- */
- xpad->bulk_out = usb_alloc_urb(0, GFP_KERNEL);
- if (!xpad->bulk_out) {
- error = -ENOMEM;
- goto fail7;
- }
-
- xpad->bdata = kzalloc(XPAD_PKT_LEN, GFP_KERNEL);
- if (!xpad->bdata) {
- error = -ENOMEM;
- goto fail8;
- }
-
- xpad->bdata[2] = 0x08;
- switch (intf->cur_altsetting->desc.bInterfaceNumber) {
- case 0:
- xpad->bdata[3] = 0x42;
- break;
- case 2:
- xpad->bdata[3] = 0x43;
- break;
- case 4:
- xpad->bdata[3] = 0x44;
- break;
- case 6:
- xpad->bdata[3] = 0x45;
- }
-
- ep_irq_in = &intf->cur_altsetting->endpoint[1].desc;
- usb_fill_bulk_urb(xpad->bulk_out, udev,
- usb_sndbulkpipe(udev, ep_irq_in->bEndpointAddress),
- xpad->bdata, XPAD_PKT_LEN, xpad_bulk_out, xpad);
-
+ xpad->interface_number = intf->cur_altsetting->desc.bInterfaceNumber;
/*
* Submit the int URB immediately rather than waiting for open
* because we get status messages from the device whether
@@ -1006,13 +986,11 @@ static int xpad_probe(struct usb_interfa
xpad->irq_in->dev = xpad->udev;
error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
if (error)
- goto fail9;
+ goto fail7;
}
return 0;
- fail9: kfree(xpad->bdata);
- fail8: usb_free_urb(xpad->bulk_out);
fail7: input_unregister_device(input_dev);
input_dev = NULL;
fail6: xpad_led_disconnect(xpad);
@@ -1036,8 +1014,6 @@ static void xpad_disconnect(struct usb_i
xpad_deinit_output(xpad);
if (xpad->xtype == XTYPE_XBOX360W) {
- usb_kill_urb(xpad->bulk_out);
- usb_free_urb(xpad->bulk_out);
usb_kill_urb(xpad->irq_in);
}
@@ -1045,7 +1021,6 @@ static void xpad_disconnect(struct usb_i
usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
xpad->idata, xpad->idata_dma);
- kfree(xpad->bdata);
kfree(xpad);
usb_set_intfdata(intf, NULL);
--
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