/* * 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 <[email protected]> * * 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. */ #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 <media/drv-intf/tea575x.h> #if defined(CONFIG_LEDS_CLASS) || \ (defined(CONFIG_LEDS_CLASS_MODULE) && defined(CONFIG_RADIO_SHARK_MODULE)) #define SHARK_USE_LEDS … #endif /* * Version Information */ MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; #define SHARK_IN_EP … #define SHARK_OUT_EP … #define TEA575X_BIT_MONO … #define TEA575X_BIT_BAND_MASK … #define TEA575X_BIT_BAND_FM … #define TB_LEN … #define DRV_NAME … #define v4l2_dev_to_shark(d) … /* Note BLUE_IS_PULSE comes after NO_LEDS as it is a status bit, not a LED */ enum { … }; struct shark_device { … }; static atomic_t shark_instance = …; static void shark_write_val(struct snd_tea575x *tea, u32 val) { … } static u32 shark_read_val(struct snd_tea575x *tea) { … } static const struct snd_tea575x_ops shark_tea_ops = …; #ifdef SHARK_USE_LEDS static void shark_led_work(struct work_struct *work) { … } 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] = …; static int shark_register_leds(struct shark_device *shark, struct device *dev) { … } static void shark_unregister_leds(struct shark_device *shark) { … } static inline void shark_resume_leds(struct shark_device *shark) { … } #else static int shark_register_leds(struct shark_device *shark, struct device *dev) { v4l2_warn(&shark->v4l2_dev, "CONFIG_LEDS_CLASS not enabled, LED support disabled\n"); return 0; } static inline void shark_unregister_leds(struct shark_device *shark) { } static inline void shark_resume_leds(struct shark_device *shark) { } #endif static void usb_shark_disconnect(struct usb_interface *intf) { … } static void usb_shark_release(struct v4l2_device *v4l2_dev) { … } static int usb_shark_probe(struct usb_interface *intf, const struct usb_device_id *id) { … } #ifdef CONFIG_PM static int usb_shark_suspend(struct usb_interface *intf, pm_message_t message) { … } static int usb_shark_resume(struct usb_interface *intf) { … } #endif /* Specify the bcdDevice value, as the radioSHARK and radioSHARK2 share ids */ static const struct usb_device_id usb_shark_device_table[] = …; MODULE_DEVICE_TABLE(usb, usb_shark_device_table); static struct usb_driver usb_shark_driver = …; module_usb_driver(…) …;
Codebase Browser
linux