mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-04 01:49:36 +00:00
[media] radio-shark: New driver for the Griffin radioSHARK USB radio receiver
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
parent
3d0fe51cfa
commit
8e2ce73e93
5 changed files with 395 additions and 0 deletions
|
@ -1832,6 +1832,7 @@ static const struct hid_device_id hid_ignore_list[] = {
|
|||
{ HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
|
||||
{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
|
||||
{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
|
||||
{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
|
||||
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
|
||||
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
|
||||
{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
|
||||
|
|
|
@ -322,6 +322,7 @@
|
|||
#define USB_VENDOR_ID_GRIFFIN 0x077d
|
||||
#define USB_DEVICE_ID_POWERMATE 0x0410
|
||||
#define USB_DEVICE_ID_SOUNDKNOB 0x04AA
|
||||
#define USB_DEVICE_ID_RADIOSHARK 0x627a
|
||||
|
||||
#define USB_VENDOR_ID_GTCO 0x078c
|
||||
#define USB_DEVICE_ID_GTCO_90 0x0090
|
||||
|
|
|
@ -57,6 +57,22 @@ config RADIO_MAXIRADIO
|
|||
To compile this driver as a module, choose M here: the
|
||||
module will be called radio-maxiradio.
|
||||
|
||||
config RADIO_SHARK
|
||||
tristate "Griffin radioSHARK USB radio receiver"
|
||||
depends on USB && SND
|
||||
---help---
|
||||
Choose Y here if you have this radio receiver.
|
||||
|
||||
There are 2 versions of this device, this driver is for version 1,
|
||||
which is white.
|
||||
|
||||
In order to control your radio card, you will need to use programs
|
||||
that are compatible with the Video For Linux API. Information on
|
||||
this API and pointers to "v4l" programs may be found at
|
||||
<file:Documentation/video4linux/API.html>.
|
||||
|
||||
To compile this driver as a module, choose M here: the
|
||||
module will be called radio-shark.
|
||||
|
||||
config I2C_SI4713
|
||||
tristate "I2C driver for Silicon Labs Si4713 device"
|
||||
|
|
|
@ -11,6 +11,7 @@ obj-$(CONFIG_RADIO_CADET) += radio-cadet.o
|
|||
obj-$(CONFIG_RADIO_TYPHOON) += radio-typhoon.o
|
||||
obj-$(CONFIG_RADIO_TERRATEC) += radio-terratec.o
|
||||
obj-$(CONFIG_RADIO_MAXIRADIO) += radio-maxiradio.o
|
||||
obj-$(CONFIG_RADIO_SHARK) += radio-shark.o
|
||||
obj-$(CONFIG_RADIO_RTRACK) += radio-aimslab.o
|
||||
obj-$(CONFIG_RADIO_ZOLTRIX) += radio-zoltrix.o
|
||||
obj-$(CONFIG_RADIO_GEMTEK) += radio-gemtek.o
|
||||
|
|
376
drivers/media/radio/radio-shark.c
Normal file
376
drivers/media/radio/radio-shark.c
Normal file
|
@ -0,0 +1,376 @@
|
|||
/*
|
||||
* Linux V4L2 radio driver for the Griffin radioSHARK USB radio receiver
|
||||
*
|
||||
* Note the radioSHARK offers the audio through a regular USB audio device,
|
||||
* this driver only handles the tuning.
|
||||
*
|
||||
* The info necessary to drive the shark was taken from the small userspace
|
||||
* shark.c program by Michael Rolig, which he kindly placed in the Public
|
||||
* Domain.
|
||||
*
|
||||
* Copyright (c) 2012 Hans de Goede <hdegoede@redhat.com>
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/leds.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/usb.h>
|
||||
#include <linux/workqueue.h>
|
||||
#include <media/v4l2-device.h>
|
||||
#include <sound/tea575x-tuner.h>
|
||||
|
||||
/*
|
||||
* Version Information
|
||||
*/
|
||||
MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
|
||||
MODULE_DESCRIPTION("Griffin radioSHARK, USB radio receiver driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
#define SHARK_IN_EP 0x83
|
||||
#define SHARK_OUT_EP 0x05
|
||||
|
||||
#define TEA575X_BIT_MONO (1<<22) /* 0 = stereo, 1 = mono */
|
||||
#define TEA575X_BIT_BAND_MASK (3<<20)
|
||||
#define TEA575X_BIT_BAND_FM (0<<20)
|
||||
|
||||
#define TB_LEN 6
|
||||
#define DRV_NAME "radioshark"
|
||||
|
||||
#define v4l2_dev_to_shark(d) container_of(d, struct shark_device, v4l2_dev)
|
||||
|
||||
enum { BLUE_LED, BLUE_PULSE_LED, RED_LED, NO_LEDS };
|
||||
|
||||
static void shark_led_set_blue(struct led_classdev *led_cdev,
|
||||
enum led_brightness value);
|
||||
static void shark_led_set_blue_pulse(struct led_classdev *led_cdev,
|
||||
enum led_brightness value);
|
||||
static void shark_led_set_red(struct led_classdev *led_cdev,
|
||||
enum led_brightness value);
|
||||
|
||||
static const struct led_classdev shark_led_templates[NO_LEDS] = {
|
||||
[BLUE_LED] = {
|
||||
.name = "%s:blue:",
|
||||
.brightness = LED_OFF,
|
||||
.max_brightness = 127,
|
||||
.brightness_set = shark_led_set_blue,
|
||||
},
|
||||
[BLUE_PULSE_LED] = {
|
||||
.name = "%s:blue-pulse:",
|
||||
.brightness = LED_OFF,
|
||||
.max_brightness = 255,
|
||||
.brightness_set = shark_led_set_blue_pulse,
|
||||
},
|
||||
[RED_LED] = {
|
||||
.name = "%s:red:",
|
||||
.brightness = LED_OFF,
|
||||
.max_brightness = 1,
|
||||
.brightness_set = shark_led_set_red,
|
||||
},
|
||||
};
|
||||
|
||||
struct shark_device {
|
||||
struct usb_device *usbdev;
|
||||
struct v4l2_device v4l2_dev;
|
||||
struct snd_tea575x tea;
|
||||
|
||||
struct work_struct led_work;
|
||||
struct led_classdev leds[NO_LEDS];
|
||||
char led_names[NO_LEDS][32];
|
||||
atomic_t brightness[NO_LEDS];
|
||||
unsigned long brightness_new;
|
||||
|
||||
u8 *transfer_buffer;
|
||||
u32 last_val;
|
||||
};
|
||||
|
||||
static atomic_t shark_instance = ATOMIC_INIT(0);
|
||||
|
||||
static void shark_write_val(struct snd_tea575x *tea, u32 val)
|
||||
{
|
||||
struct shark_device *shark = tea->private_data;
|
||||
int i, res, actual_len;
|
||||
|
||||
/* Avoid unnecessary (slow) USB transfers */
|
||||
if (shark->last_val == val)
|
||||
return;
|
||||
|
||||
memset(shark->transfer_buffer, 0, TB_LEN);
|
||||
shark->transfer_buffer[0] = 0xc0; /* Write shift register command */
|
||||
for (i = 0; i < 4; i++)
|
||||
shark->transfer_buffer[i] |= (val >> (24 - i * 8)) & 0xff;
|
||||
|
||||
res = usb_interrupt_msg(shark->usbdev,
|
||||
usb_sndintpipe(shark->usbdev, SHARK_OUT_EP),
|
||||
shark->transfer_buffer, TB_LEN,
|
||||
&actual_len, 1000);
|
||||
if (res >= 0)
|
||||
shark->last_val = val;
|
||||
else
|
||||
v4l2_err(&shark->v4l2_dev, "set-freq error: %d\n", res);
|
||||
}
|
||||
|
||||
static u32 shark_read_val(struct snd_tea575x *tea)
|
||||
{
|
||||
struct shark_device *shark = tea->private_data;
|
||||
int i, res, actual_len;
|
||||
u32 val = 0;
|
||||
|
||||
memset(shark->transfer_buffer, 0, TB_LEN);
|
||||
shark->transfer_buffer[0] = 0x80;
|
||||
res = usb_interrupt_msg(shark->usbdev,
|
||||
usb_sndintpipe(shark->usbdev, SHARK_OUT_EP),
|
||||
shark->transfer_buffer, TB_LEN,
|
||||
&actual_len, 1000);
|
||||
if (res < 0) {
|
||||
v4l2_err(&shark->v4l2_dev, "request-status error: %d\n", res);
|
||||
return shark->last_val;
|
||||
}
|
||||
|
||||
res = usb_interrupt_msg(shark->usbdev,
|
||||
usb_rcvintpipe(shark->usbdev, SHARK_IN_EP),
|
||||
shark->transfer_buffer, TB_LEN,
|
||||
&actual_len, 1000);
|
||||
if (res < 0) {
|
||||
v4l2_err(&shark->v4l2_dev, "get-status error: %d\n", res);
|
||||
return shark->last_val;
|
||||
}
|
||||
|
||||
for (i = 0; i < 4; i++)
|
||||
val |= shark->transfer_buffer[i] << (24 - i * 8);
|
||||
|
||||
shark->last_val = val;
|
||||
|
||||
/*
|
||||
* The shark does not allow actually reading the stereo / mono pin :(
|
||||
* So assume that when we're tuned to an FM station and mono has not
|
||||
* been requested, that we're receiving stereo.
|
||||
*/
|
||||
if (((val & TEA575X_BIT_BAND_MASK) == TEA575X_BIT_BAND_FM) &&
|
||||
!(val & TEA575X_BIT_MONO))
|
||||
shark->tea.stereo = true;
|
||||
else
|
||||
shark->tea.stereo = false;
|
||||
|
||||
return val;
|
||||
}
|
||||
|
||||
static struct snd_tea575x_ops shark_tea_ops = {
|
||||
.write_val = shark_write_val,
|
||||
.read_val = shark_read_val,
|
||||
};
|
||||
|
||||
static void shark_led_work(struct work_struct *work)
|
||||
{
|
||||
struct shark_device *shark =
|
||||
container_of(work, struct shark_device, led_work);
|
||||
int i, res, brightness, actual_len;
|
||||
|
||||
/*
|
||||
* We use the v4l2_dev lock and registered bit to ensure the device
|
||||
* does not get unplugged and unreffed while we're running.
|
||||
*/
|
||||
mutex_lock(&shark->tea.mutex);
|
||||
if (!video_is_registered(&shark->tea.vd))
|
||||
goto leave;
|
||||
|
||||
for (i = 0; i < 3; i++) {
|
||||
if (!test_and_clear_bit(i, &shark->brightness_new))
|
||||
continue;
|
||||
|
||||
brightness = atomic_read(&shark->brightness[i]);
|
||||
memset(shark->transfer_buffer, 0, TB_LEN);
|
||||
if (i != RED_LED) {
|
||||
shark->transfer_buffer[0] = 0xA0 + i;
|
||||
shark->transfer_buffer[1] = brightness;
|
||||
} else
|
||||
shark->transfer_buffer[0] = brightness ? 0xA9 : 0xA8;
|
||||
res = usb_interrupt_msg(shark->usbdev,
|
||||
usb_sndintpipe(shark->usbdev, 0x05),
|
||||
shark->transfer_buffer, TB_LEN,
|
||||
&actual_len, 1000);
|
||||
if (res < 0)
|
||||
v4l2_err(&shark->v4l2_dev, "set LED %s error: %d\n",
|
||||
shark->led_names[i], res);
|
||||
}
|
||||
leave:
|
||||
mutex_unlock(&shark->tea.mutex);
|
||||
}
|
||||
|
||||
static void shark_led_set_blue(struct led_classdev *led_cdev,
|
||||
enum led_brightness value)
|
||||
{
|
||||
struct shark_device *shark =
|
||||
container_of(led_cdev, struct shark_device, leds[BLUE_LED]);
|
||||
|
||||
atomic_set(&shark->brightness[BLUE_LED], value);
|
||||
set_bit(BLUE_LED, &shark->brightness_new);
|
||||
schedule_work(&shark->led_work);
|
||||
}
|
||||
|
||||
static void shark_led_set_blue_pulse(struct led_classdev *led_cdev,
|
||||
enum led_brightness value)
|
||||
{
|
||||
struct shark_device *shark = container_of(led_cdev,
|
||||
struct shark_device, leds[BLUE_PULSE_LED]);
|
||||
|
||||
atomic_set(&shark->brightness[BLUE_PULSE_LED], 256 - value);
|
||||
set_bit(BLUE_PULSE_LED, &shark->brightness_new);
|
||||
schedule_work(&shark->led_work);
|
||||
}
|
||||
|
||||
static void shark_led_set_red(struct led_classdev *led_cdev,
|
||||
enum led_brightness value)
|
||||
{
|
||||
struct shark_device *shark =
|
||||
container_of(led_cdev, struct shark_device, leds[RED_LED]);
|
||||
|
||||
atomic_set(&shark->brightness[RED_LED], value);
|
||||
set_bit(RED_LED, &shark->brightness_new);
|
||||
schedule_work(&shark->led_work);
|
||||
}
|
||||
|
||||
static void usb_shark_disconnect(struct usb_interface *intf)
|
||||
{
|
||||
struct v4l2_device *v4l2_dev = usb_get_intfdata(intf);
|
||||
struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
|
||||
int i;
|
||||
|
||||
mutex_lock(&shark->tea.mutex);
|
||||
v4l2_device_disconnect(&shark->v4l2_dev);
|
||||
snd_tea575x_exit(&shark->tea);
|
||||
mutex_unlock(&shark->tea.mutex);
|
||||
|
||||
for (i = 0; i < NO_LEDS; i++)
|
||||
led_classdev_unregister(&shark->leds[i]);
|
||||
|
||||
v4l2_device_put(&shark->v4l2_dev);
|
||||
}
|
||||
|
||||
static void usb_shark_release(struct v4l2_device *v4l2_dev)
|
||||
{
|
||||
struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
|
||||
|
||||
cancel_work_sync(&shark->led_work);
|
||||
v4l2_device_unregister(&shark->v4l2_dev);
|
||||
kfree(shark->transfer_buffer);
|
||||
kfree(shark);
|
||||
}
|
||||
|
||||
static int usb_shark_probe(struct usb_interface *intf,
|
||||
const struct usb_device_id *id)
|
||||
{
|
||||
struct shark_device *shark;
|
||||
int i, retval = -ENOMEM;
|
||||
|
||||
shark = kzalloc(sizeof(struct shark_device), GFP_KERNEL);
|
||||
if (!shark)
|
||||
return retval;
|
||||
|
||||
shark->transfer_buffer = kmalloc(TB_LEN, GFP_KERNEL);
|
||||
if (!shark->transfer_buffer)
|
||||
goto err_alloc_buffer;
|
||||
|
||||
/*
|
||||
* Work around a bug in usbhid/hid-core.c, where it leaves a dangling
|
||||
* pointer in intfdata causing v4l2-device.c to not set it. Which
|
||||
* results in usb_shark_disconnect() referencing the dangling pointer
|
||||
*
|
||||
* REMOVE (as soon as the above bug is fixed, patch submitted)
|
||||
*/
|
||||
usb_set_intfdata(intf, NULL);
|
||||
|
||||
shark->v4l2_dev.release = usb_shark_release;
|
||||
v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance);
|
||||
retval = v4l2_device_register(&intf->dev, &shark->v4l2_dev);
|
||||
if (retval) {
|
||||
v4l2_err(&shark->v4l2_dev, "couldn't register v4l2_device\n");
|
||||
goto err_reg_dev;
|
||||
}
|
||||
|
||||
shark->usbdev = interface_to_usbdev(intf);
|
||||
shark->tea.v4l2_dev = &shark->v4l2_dev;
|
||||
shark->tea.private_data = shark;
|
||||
shark->tea.radio_nr = -1;
|
||||
shark->tea.ops = &shark_tea_ops;
|
||||
shark->tea.cannot_mute = true;
|
||||
strlcpy(shark->tea.card, "Griffin radioSHARK",
|
||||
sizeof(shark->tea.card));
|
||||
usb_make_path(shark->usbdev, shark->tea.bus_info,
|
||||
sizeof(shark->tea.bus_info));
|
||||
|
||||
retval = snd_tea575x_init(&shark->tea, THIS_MODULE);
|
||||
if (retval) {
|
||||
v4l2_err(&shark->v4l2_dev, "couldn't init tea5757\n");
|
||||
goto err_init_tea;
|
||||
}
|
||||
|
||||
INIT_WORK(&shark->led_work, shark_led_work);
|
||||
for (i = 0; i < NO_LEDS; i++) {
|
||||
shark->leds[i] = shark_led_templates[i];
|
||||
snprintf(shark->led_names[i], sizeof(shark->led_names[0]),
|
||||
shark->leds[i].name, shark->v4l2_dev.name);
|
||||
shark->leds[i].name = shark->led_names[i];
|
||||
/*
|
||||
* We don't fail the probe if we fail to register the leds,
|
||||
* because once we've called snd_tea575x_init, the /dev/radio0
|
||||
* node may be opened from userspace holding a reference to us!
|
||||
*
|
||||
* Note we cannot register the leds first instead as
|
||||
* shark_led_work depends on the v4l2 mutex and registered bit.
|
||||
*/
|
||||
retval = led_classdev_register(&intf->dev, &shark->leds[i]);
|
||||
if (retval)
|
||||
v4l2_err(&shark->v4l2_dev,
|
||||
"couldn't register led: %s\n",
|
||||
shark->led_names[i]);
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err_init_tea:
|
||||
v4l2_device_unregister(&shark->v4l2_dev);
|
||||
err_reg_dev:
|
||||
kfree(shark->transfer_buffer);
|
||||
err_alloc_buffer:
|
||||
kfree(shark);
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
/* Specify the bcdDevice value, as the radioSHARK and radioSHARK2 share ids */
|
||||
static struct usb_device_id usb_shark_device_table[] = {
|
||||
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
|
||||
USB_DEVICE_ID_MATCH_INT_CLASS,
|
||||
.idVendor = 0x077d,
|
||||
.idProduct = 0x627a,
|
||||
.bcdDevice_lo = 0x0001,
|
||||
.bcdDevice_hi = 0x0001,
|
||||
.bInterfaceClass = 3,
|
||||
},
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(usb, usb_shark_device_table);
|
||||
|
||||
static struct usb_driver usb_shark_driver = {
|
||||
.name = DRV_NAME,
|
||||
.probe = usb_shark_probe,
|
||||
.disconnect = usb_shark_disconnect,
|
||||
.id_table = usb_shark_device_table,
|
||||
};
|
||||
module_usb_driver(usb_shark_driver);
|
Loading…
Reference in a new issue