Commit bf139726 authored by Sean Young's avatar Sean Young Committed by Mauro Carvalho Chehab

[media] redrat3: wire up rc feedback led

Signed-off-by: default avatarSean Young <sean@mess.org>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent 153a60bb
......@@ -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 @@ static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf,
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;
}
......
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