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authorAlexey Klimov <klimov.linux@gmail.com>2009-06-11 00:22:42 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-06-16 19:07:36 -0300
commitf1ca0adfcf2c2f1129a59b93caa80a1dbd6b6c81 (patch)
tree5361ee39fb202a5736f4d09ffe085a0d7131f9a2 /drivers/media/radio/dsbr100.c
parent917fab4f3e5563e8f88ca0af297728452c6fa265 (diff)
downloadlinux-linaro-stable-f1ca0adfcf2c2f1129a59b93caa80a1dbd6b6c81.tar.gz
V4L/DVB (11957): dsbr100: change radio->muted to radio->status, update suspend/resume
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> Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio/dsbr100.c')
-rw-r--r--drivers/media/radio/dsbr100.c47
1 files changed, 35 insertions, 12 deletions
diff --git a/drivers/media/radio/dsbr100.c b/drivers/media/radio/dsbr100.c
index 17e8f2ca7d90..ed9cd7ad0604 100644
--- a/drivers/media/radio/dsbr100.c
+++ b/drivers/media/radio/dsbr100.c
@@ -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.
@@ -100,8 +104,8 @@
*/
#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"
@@ -121,6 +125,10 @@ devices, that would be 76 and 91. */
#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,
@@ -144,7 +152,7 @@ struct dsbr100_device {
int curfreq;
int stereo;
int removed;
- int muted;
+ int status;
};
static struct usb_device_id usb_dsbr100_device_table [] = {
@@ -198,7 +206,7 @@ static int dsbr100_start(struct dsbr100_device *radio)
goto usb_control_msg_failed;
}
- radio->muted = 0;
+ radio->status = STARTED;
mutex_unlock(&radio->lock);
return (radio->transfer_buffer)[0];
@@ -241,7 +249,7 @@ static int dsbr100_stop(struct dsbr100_device *radio)
goto usb_control_msg_failed;
}
- radio->muted = 1;
+ radio->status = STOPPED;
mutex_unlock(&radio->lock);
return (radio->transfer_buffer)[0];
@@ -470,7 +478,7 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
- ctrl->value = radio->muted;
+ ctrl->value = radio->status;
return 0;
}
return -EINVAL;
@@ -546,9 +554,21 @@ static int usb_dsbr100_suspend(struct usb_interface *intf, pm_message_t message)
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");
@@ -561,9 +581,11 @@ static int usb_dsbr100_resume(struct usb_interface *intf)
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");
@@ -642,6 +664,7 @@ static int usb_dsbr100_probe(struct usb_interface *intf,
radio->removed = 0;
radio->usbdev = interface_to_usbdev(intf);
radio->curfreq = FREQ_MIN * FREQ_MUL;
+ radio->status = STOPPED;
video_set_drvdata(&radio->videodev, radio);