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[media] radio-shark: Add support for suspend & resume
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
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d1f280d615
commit
559c200900
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@ -59,7 +59,8 @@ MODULE_LICENSE("GPL");
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#define v4l2_dev_to_shark(d) container_of(d, struct shark_device, v4l2_dev)
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#define v4l2_dev_to_shark(d) container_of(d, struct shark_device, v4l2_dev)
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enum { BLUE_LED, BLUE_PULSE_LED, RED_LED, NO_LEDS };
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/* Note BLUE_IS_PULSE comes after NO_LEDS as it is a status bit, not a LED */
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enum { BLUE_LED, BLUE_PULSE_LED, RED_LED, NO_LEDS, BLUE_IS_PULSE };
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struct shark_device {
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struct shark_device {
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struct usb_device *usbdev;
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struct usb_device *usbdev;
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@ -190,6 +191,7 @@ static void shark_led_set_blue(struct led_classdev *led_cdev,
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atomic_set(&shark->brightness[BLUE_LED], value);
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atomic_set(&shark->brightness[BLUE_LED], value);
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set_bit(BLUE_LED, &shark->brightness_new);
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set_bit(BLUE_LED, &shark->brightness_new);
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clear_bit(BLUE_IS_PULSE, &shark->brightness_new);
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schedule_work(&shark->led_work);
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schedule_work(&shark->led_work);
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}
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}
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@ -201,6 +203,7 @@ static void shark_led_set_blue_pulse(struct led_classdev *led_cdev,
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atomic_set(&shark->brightness[BLUE_PULSE_LED], 256 - value);
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atomic_set(&shark->brightness[BLUE_PULSE_LED], 256 - value);
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set_bit(BLUE_PULSE_LED, &shark->brightness_new);
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set_bit(BLUE_PULSE_LED, &shark->brightness_new);
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set_bit(BLUE_IS_PULSE, &shark->brightness_new);
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schedule_work(&shark->led_work);
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schedule_work(&shark->led_work);
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}
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}
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@ -240,6 +243,7 @@ static int shark_register_leds(struct shark_device *shark, struct device *dev)
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{
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{
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int i, retval;
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int i, retval;
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atomic_set(&shark->brightness[BLUE_LED], 127);
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INIT_WORK(&shark->led_work, shark_led_work);
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INIT_WORK(&shark->led_work, shark_led_work);
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for (i = 0; i < NO_LEDS; i++) {
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for (i = 0; i < NO_LEDS; i++) {
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shark->leds[i] = shark_led_templates[i];
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shark->leds[i] = shark_led_templates[i];
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@ -266,6 +270,16 @@ static void shark_unregister_leds(struct shark_device *shark)
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cancel_work_sync(&shark->led_work);
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cancel_work_sync(&shark->led_work);
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}
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}
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static void shark_resume_leds(struct shark_device *shark)
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{
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if (test_bit(BLUE_IS_PULSE, &shark->brightness_new))
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set_bit(BLUE_PULSE_LED, &shark->brightness_new);
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else
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set_bit(BLUE_LED, &shark->brightness_new);
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set_bit(RED_LED, &shark->brightness_new);
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schedule_work(&shark->led_work);
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}
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#else
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#else
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static int shark_register_leds(struct shark_device *shark, struct device *dev)
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static int shark_register_leds(struct shark_device *shark, struct device *dev)
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{
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{
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@ -274,6 +288,7 @@ static int shark_register_leds(struct shark_device *shark, struct device *dev)
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return 0;
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return 0;
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}
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}
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static inline void shark_unregister_leds(struct shark_device *shark) { }
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static inline void shark_unregister_leds(struct shark_device *shark) { }
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static inline void shark_resume_leds(struct shark_device *shark) { }
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#endif
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#endif
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static void usb_shark_disconnect(struct usb_interface *intf)
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static void usb_shark_disconnect(struct usb_interface *intf)
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@ -359,6 +374,27 @@ err_alloc_buffer:
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return retval;
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return retval;
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}
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}
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#ifdef CONFIG_PM
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int usb_shark_suspend(struct usb_interface *intf, pm_message_t message)
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{
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return 0;
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}
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int usb_shark_resume(struct usb_interface *intf)
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{
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struct v4l2_device *v4l2_dev = usb_get_intfdata(intf);
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struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
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mutex_lock(&shark->tea.mutex);
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snd_tea575x_set_freq(&shark->tea);
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mutex_unlock(&shark->tea.mutex);
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shark_resume_leds(shark);
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return 0;
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}
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#endif
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/* Specify the bcdDevice value, as the radioSHARK and radioSHARK2 share ids */
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/* Specify the bcdDevice value, as the radioSHARK and radioSHARK2 share ids */
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static struct usb_device_id usb_shark_device_table[] = {
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static struct usb_device_id usb_shark_device_table[] = {
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{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
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{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
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@ -378,5 +414,10 @@ static struct usb_driver usb_shark_driver = {
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.probe = usb_shark_probe,
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.probe = usb_shark_probe,
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.disconnect = usb_shark_disconnect,
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.disconnect = usb_shark_disconnect,
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.id_table = usb_shark_device_table,
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.id_table = usb_shark_device_table,
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#ifdef CONFIG_PM
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.suspend = usb_shark_suspend,
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.resume = usb_shark_resume,
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.reset_resume = usb_shark_resume,
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#endif
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};
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};
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module_usb_driver(usb_shark_driver);
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module_usb_driver(usb_shark_driver);
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@ -73,5 +73,6 @@ struct snd_tea575x {
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int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner);
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int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner);
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void snd_tea575x_exit(struct snd_tea575x *tea);
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void snd_tea575x_exit(struct snd_tea575x *tea);
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void snd_tea575x_set_freq(struct snd_tea575x *tea);
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#endif /* __SOUND_TEA575X_TUNER_H */
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#endif /* __SOUND_TEA575X_TUNER_H */
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@ -191,7 +191,7 @@ static u32 snd_tea575x_get_freq(struct snd_tea575x *tea)
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return snd_tea575x_val_to_freq(tea, snd_tea575x_read(tea));
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return snd_tea575x_val_to_freq(tea, snd_tea575x_read(tea));
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}
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}
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static void snd_tea575x_set_freq(struct snd_tea575x *tea)
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void snd_tea575x_set_freq(struct snd_tea575x *tea)
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{
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{
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u32 freq = tea->freq / 16; /* to kHz */
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u32 freq = tea->freq / 16; /* to kHz */
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u32 band = 0;
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u32 band = 0;
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@ -571,3 +571,4 @@ module_exit(alsa_tea575x_module_exit)
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EXPORT_SYMBOL(snd_tea575x_init);
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EXPORT_SYMBOL(snd_tea575x_init);
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EXPORT_SYMBOL(snd_tea575x_exit);
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EXPORT_SYMBOL(snd_tea575x_exit);
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EXPORT_SYMBOL(snd_tea575x_set_freq);
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