@@ -33,6 +33,10 @@
History:
+ Version 0.46:
+ Removed usb_dsbr100_open/close calls and radio->users counter. Also,
+ radio->muted changed to radio->status and suspend/resume calls updated.
+
Version 0.45:
Converted to v4l2_device.
@@ -101,8 +105,8 @@
*/
#include <linux/version.h> /* for KERNEL_VERSION MACRO */
-#define DRIVER_VERSION "v0.45"
-#define RADIO_VERSION KERNEL_VERSION(0, 4, 5)
+#define DRIVER_VERSION "v0.46"
+#define RADIO_VERSION KERNEL_VERSION(0, 4, 6)
#define DRIVER_AUTHOR "Markus Demleitner <msdemlei@tucana.harvard.edu>"
#define DRIVER_DESC "D-Link DSB-R100 USB FM radio driver"
@@ -122,6 +126,10 @@
#define FREQ_MAX 108.0
#define FREQ_MUL 16000
+/* defines for radio->status */
+#define STARTED 0
+#define STOPPED 1
+
#define videodev_to_radio(d) container_of(d, struct dsbr100_device, videodev)
static int usb_dsbr100_probe(struct usb_interface *intf,
@@ -145,7 +153,7 @@
int curfreq;
int stereo;
int removed;
- int muted;
+ int status;
};
static struct usb_device_id usb_dsbr100_device_table [] = {
@@ -201,7 +209,7 @@
goto usb_control_msg_failed;
}
- radio->muted = 0;
+ radio->status = STARTED;
mutex_unlock(&radio->lock);
return (radio->transfer_buffer)[0];
@@ -244,7 +252,7 @@
goto usb_control_msg_failed;
}
- radio->muted = 1;
+ radio->status = STOPPED;
mutex_unlock(&radio->lock);
return (radio->transfer_buffer)[0];
@@ -473,7 +481,7 @@
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
- ctrl->value = radio->muted;
+ ctrl->value = radio->status;
return 0;
}
return -EINVAL;
@@ -549,9 +557,21 @@
struct dsbr100_device *radio = usb_get_intfdata(intf);
int retval;
- retval = dsbr100_stop(radio);
- if (retval < 0)
- dev_warn(&intf->dev, "dsbr100_stop failed\n");
+ if (radio->status == STARTED) {
+ retval = dsbr100_stop(radio);
+ if (retval < 0)
+ dev_warn(&intf->dev, "dsbr100_stop failed\n");
+
+ /* After dsbr100_stop() status set to STOPPED.
+ * If we want driver to start radio on resume
+ * we set status equal to STARTED.
+ * On resume we will check status and run radio if needed.
+ */
+
+ mutex_lock(&radio->lock);
+ radio->status = STARTED;
+ mutex_unlock(&radio->lock);
+ }
dev_info(&intf->dev, "going into suspend..\n");
@@ -564,9 +584,11 @@
struct dsbr100_device *radio = usb_get_intfdata(intf);
int retval;
- retval = dsbr100_start(radio);
- if (retval < 0)
- dev_warn(&intf->dev, "dsbr100_start failed\n");
+ if (radio->status == STARTED) {
+ retval = dsbr100_start(radio);
+ if (retval < 0)
+ dev_warn(&intf->dev, "dsbr100_start failed\n");
+ }
dev_info(&intf->dev, "coming out of suspend..\n");
@@ -645,6 +667,7 @@
radio->removed = 0;
radio->usbdev = interface_to_usbdev(intf);
radio->curfreq = FREQ_MIN * FREQ_MUL;
+ radio->status = STOPPED;
video_set_drvdata(&radio->videodev, radio);
Patch renames radio->muted to radio->status, add defines for that variable, and fixes suspend/resume procedure. Radio->status set to STOPPED in usb_dsbr100_probe because of removing open call. Also, patch increases driver version. Signed-off-by: Alexey Klimov <klimov.linux@gmail.com> --