[media] redrat3: wire up rc feedback led
Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Sean Young
Mauro Carvalho Chehab
parent
153a60bb0f
commit
bf13972689
|
|
@ -223,6 +223,8 @@ config IR_REDRAT3
|
|||
tristate "RedRat3 IR Transceiver"
|
||||
depends on USB_ARCH_HAS_HCD
|
||||
depends on RC_CORE
|
||||
select NEW_LEDS
|
||||
select LEDS_CLASS
|
||||
select USB
|
||||
---help---
|
||||
Say Y here if you want to use a RedRat3 Infrared Transceiver.
|
||||
|
|
|
|||
|
|
@ -47,6 +47,7 @@
|
|||
|
||||
#include <asm/unaligned.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/leds.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/usb.h>
|
||||
|
|
@ -186,6 +187,13 @@ struct redrat3_dev {
|
|||
struct rc_dev *rc;
|
||||
struct device *dev;
|
||||
|
||||
/* led control */
|
||||
struct led_classdev led;
|
||||
atomic_t flash;
|
||||
struct usb_ctrlrequest flash_control;
|
||||
struct urb *flash_urb;
|
||||
u8 flash_in_buf;
|
||||
|
||||
/* save off the usb device pointer */
|
||||
struct usb_device *udev;
|
||||
|
||||
|
|
@ -480,9 +488,9 @@ static inline void redrat3_delete(struct redrat3_dev *rr3,
|
|||
{
|
||||
rr3_ftr(rr3->dev, "%s cleaning up\n", __func__);
|
||||
usb_kill_urb(rr3->read_urb);
|
||||
|
||||
usb_kill_urb(rr3->flash_urb);
|
||||
usb_free_urb(rr3->read_urb);
|
||||
|
||||
usb_free_urb(rr3->flash_urb);
|
||||
usb_free_coherent(udev, le16_to_cpu(rr3->ep_in->wMaxPacketSize),
|
||||
rr3->bulk_in_buf, rr3->dma_in);
|
||||
|
||||
|
|
@ -850,6 +858,44 @@ out:
|
|||
return ret;
|
||||
}
|
||||
|
||||
static void redrat3_brightness_set(struct led_classdev *led_dev, enum
|
||||
led_brightness brightness)
|
||||
{
|
||||
struct redrat3_dev *rr3 = container_of(led_dev, struct redrat3_dev,
|
||||
led);
|
||||
|
||||
if (brightness != LED_OFF && atomic_cmpxchg(&rr3->flash, 0, 1) == 0) {
|
||||
int ret = usb_submit_urb(rr3->flash_urb, GFP_ATOMIC);
|
||||
if (ret != 0) {
|
||||
dev_dbg(rr3->dev, "%s: unexpected ret of %d\n",
|
||||
__func__, ret);
|
||||
atomic_set(&rr3->flash, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void redrat3_led_complete(struct urb *urb)
|
||||
{
|
||||
struct redrat3_dev *rr3 = urb->context;
|
||||
|
||||
switch (urb->status) {
|
||||
case 0:
|
||||
break;
|
||||
case -ECONNRESET:
|
||||
case -ENOENT:
|
||||
case -ESHUTDOWN:
|
||||
usb_unlink_urb(urb);
|
||||
return;
|
||||
case -EPIPE:
|
||||
default:
|
||||
dev_dbg(rr3->dev, "Error: urb status = %d\n", urb->status);
|
||||
break;
|
||||
}
|
||||
|
||||
rr3->led.brightness = LED_OFF;
|
||||
atomic_dec(&rr3->flash);
|
||||
}
|
||||
|
||||
static struct rc_dev *redrat3_init_rc_dev(struct redrat3_dev *rr3)
|
||||
{
|
||||
struct device *dev = rr3->dev;
|
||||
|
|
@ -993,10 +1039,35 @@ static int redrat3_dev_probe(struct usb_interface *intf,
|
|||
/* default.. will get overridden by any sends with a freq defined */
|
||||
rr3->carrier = 38000;
|
||||
|
||||
/* led control */
|
||||
rr3->led.name = "redrat3:red:feedback";
|
||||
rr3->led.default_trigger = "rc-feedback";
|
||||
rr3->led.brightness_set = redrat3_brightness_set;
|
||||
retval = led_classdev_register(&intf->dev, &rr3->led);
|
||||
if (retval)
|
||||
goto error;
|
||||
|
||||
atomic_set(&rr3->flash, 0);
|
||||
rr3->flash_urb = usb_alloc_urb(0, GFP_KERNEL);
|
||||
if (!rr3->flash_urb) {
|
||||
retval = -ENOMEM;
|
||||
goto led_free_error;
|
||||
}
|
||||
|
||||
/* setup packet is 'c0 b9 0000 0000 0001' */
|
||||
rr3->flash_control.bRequestType = 0xc0;
|
||||
rr3->flash_control.bRequest = RR3_BLINK_LED;
|
||||
rr3->flash_control.wLength = cpu_to_le16(1);
|
||||
|
||||
usb_fill_control_urb(rr3->flash_urb, udev, usb_rcvctrlpipe(udev, 0),
|
||||
(unsigned char *)&rr3->flash_control,
|
||||
&rr3->flash_in_buf, sizeof(rr3->flash_in_buf),
|
||||
redrat3_led_complete, rr3);
|
||||
|
||||
rr3->rc = redrat3_init_rc_dev(rr3);
|
||||
if (!rr3->rc) {
|
||||
retval = -ENOMEM;
|
||||
goto error;
|
||||
goto led_free_error;
|
||||
}
|
||||
setup_timer(&rr3->rx_timeout, redrat3_rx_timeout, (unsigned long)rr3);
|
||||
|
||||
|
|
@ -1006,6 +1077,8 @@ static int redrat3_dev_probe(struct usb_interface *intf,
|
|||
rr3_ftr(dev, "Exiting %s\n", __func__);
|
||||
return 0;
|
||||
|
||||
led_free_error:
|
||||
led_classdev_unregister(&rr3->led);
|
||||
error:
|
||||
redrat3_delete(rr3, rr3->udev);
|
||||
|
||||
|
|
@ -1027,6 +1100,7 @@ static void redrat3_dev_disconnect(struct usb_interface *intf)
|
|||
|
||||
usb_set_intfdata(intf, NULL);
|
||||
rc_unregister_device(rr3->rc);
|
||||
led_classdev_unregister(&rr3->led);
|
||||
del_timer_sync(&rr3->rx_timeout);
|
||||
redrat3_delete(rr3, udev);
|
||||
|
||||
|
|
@ -1037,7 +1111,9 @@ static int redrat3_dev_suspend(struct usb_interface *intf, pm_message_t message)
|
|||
{
|
||||
struct redrat3_dev *rr3 = usb_get_intfdata(intf);
|
||||
rr3_ftr(rr3->dev, "suspend\n");
|
||||
led_classdev_suspend(&rr3->led);
|
||||
usb_kill_urb(rr3->read_urb);
|
||||
usb_kill_urb(rr3->flash_urb);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -1047,6 +1123,7 @@ static int redrat3_dev_resume(struct usb_interface *intf)
|
|||
rr3_ftr(rr3->dev, "resume\n");
|
||||
if (usb_submit_urb(rr3->read_urb, GFP_ATOMIC))
|
||||
return -EIO;
|
||||
led_classdev_resume(&rr3->led);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue