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path: root/drivers/media/usb/au0828/au0828-dvb.c
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Diffstat (limited to 'drivers/media/usb/au0828/au0828-dvb.c')
-rw-r--r--drivers/media/usb/au0828/au0828-dvb.c110
1 files changed, 74 insertions, 36 deletions
diff --git a/drivers/media/usb/au0828/au0828-dvb.c b/drivers/media/usb/au0828/au0828-dvb.c
index d8b5d948..00ab1563 100644
--- a/drivers/media/usb/au0828/au0828-dvb.c
+++ b/drivers/media/usb/au0828/au0828-dvb.c
@@ -19,15 +19,15 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include "au0828.h"
+
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/device.h>
-#include <linux/suspend.h>
#include <media/v4l2-common.h>
#include <media/tuner.h>
-#include "au0828.h"
#include "au8522.h"
#include "xc5000.h"
#include "mxl5007t.h"
@@ -121,13 +121,13 @@ static void urb_completion(struct urb *purb)
return;
}
- if (dev->urb_streaming == 0) {
+ if (!dev->urb_streaming) {
dprintk(2, "%s: not streaming!\n", __func__);
return;
}
if (ptype != PIPE_BULK) {
- printk(KERN_ERR "%s: Unsupported URB type %d\n",
+ pr_err("%s: Unsupported URB type %d\n",
__func__, ptype);
return;
}
@@ -159,7 +159,10 @@ static int stop_urb_transfer(struct au0828_dev *dev)
dprintk(2, "%s()\n", __func__);
- dev->urb_streaming = 0;
+ if (!dev->urb_streaming)
+ return 0;
+
+ dev->urb_streaming = false;
for (i = 0; i < URB_COUNT; i++) {
if (dev->urbs[i]) {
usb_kill_urb(dev->urbs[i]);
@@ -202,8 +205,7 @@ static int start_urb_transfer(struct au0828_dev *dev)
if (!purb->transfer_buffer) {
usb_free_urb(purb);
dev->urbs[i] = NULL;
- printk(KERN_ERR
- "%s: failed big buffer allocation, err = %d\n",
+ pr_err("%s: failed big buffer allocation, err = %d\n",
__func__, ret);
goto err;
}
@@ -224,13 +226,13 @@ static int start_urb_transfer(struct au0828_dev *dev)
ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
if (ret != 0) {
stop_urb_transfer(dev);
- printk(KERN_ERR "%s: failed urb submission, "
- "err = %d\n", __func__, ret);
+ pr_err("%s: failed urb submission, err = %d\n",
+ __func__, ret);
return ret;
}
}
- dev->urb_streaming = 1;
+ dev->urb_streaming = true;
ret = 0;
err:
@@ -268,7 +270,7 @@ static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
if (!demux->dmx.frontend)
return -EINVAL;
- if (dvb) {
+ if (dvb->frontend) {
mutex_lock(&dvb->lock);
dvb->start_count++;
dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
@@ -297,7 +299,7 @@ static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
dprintk(1, "%s()\n", __func__);
- if (dvb) {
+ if (dvb->frontend) {
cancel_work_sync(&dev->restart_streaming);
mutex_lock(&dvb->lock);
@@ -324,7 +326,7 @@ static void au0828_restart_dvb_streaming(struct work_struct *work)
restart_streaming);
struct au0828_dvb *dvb = &dev->dvb;
- if (dev->urb_streaming == 0)
+ if (!dev->urb_streaming)
return;
dprintk(1, "Restarting streaming...!\n");
@@ -393,9 +395,8 @@ static int dvb_register(struct au0828_dev *dev)
if (!dev->dig_transfer_buffer[i]) {
result = -ENOMEM;
- printk(KERN_ERR
- "%s: failed buffer allocation (errno = %d)\n",
- DRIVER_NAME, result);
+ pr_err("failed buffer allocation (errno = %d)\n",
+ result);
goto fail_adapter;
}
}
@@ -404,11 +405,12 @@ static int dvb_register(struct au0828_dev *dev)
INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);
/* register adapter */
- result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
+ result = dvb_register_adapter(&dvb->adapter,
+ KBUILD_MODNAME, THIS_MODULE,
&dev->usbdev->dev, adapter_nr);
if (result < 0) {
- printk(KERN_ERR "%s: dvb_register_adapter failed "
- "(errno = %d)\n", DRIVER_NAME, result);
+ pr_err("dvb_register_adapter failed (errno = %d)\n",
+ result);
goto fail_adapter;
}
dvb->adapter.priv = dev;
@@ -416,8 +418,8 @@ static int dvb_register(struct au0828_dev *dev)
/* register frontend */
result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
if (result < 0) {
- printk(KERN_ERR "%s: dvb_register_frontend failed "
- "(errno = %d)\n", DRIVER_NAME, result);
+ pr_err("dvb_register_frontend failed (errno = %d)\n",
+ result);
goto fail_frontend;
}
@@ -436,8 +438,7 @@ static int dvb_register(struct au0828_dev *dev)
dvb->demux.stop_feed = au0828_dvb_stop_feed;
result = dvb_dmx_init(&dvb->demux);
if (result < 0) {
- printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
- DRIVER_NAME, result);
+ pr_err("dvb_dmx_init failed (errno = %d)\n", result);
goto fail_dmx;
}
@@ -446,31 +447,29 @@ static int dvb_register(struct au0828_dev *dev)
dvb->dmxdev.capabilities = 0;
result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
if (result < 0) {
- printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
- DRIVER_NAME, result);
+ pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
goto fail_dmxdev;
}
dvb->fe_hw.source = DMX_FRONTEND_0;
result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
if (result < 0) {
- printk(KERN_ERR "%s: add_frontend failed "
- "(DMX_FRONTEND_0, errno = %d)\n", DRIVER_NAME, result);
+ pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
+ result);
goto fail_fe_hw;
}
dvb->fe_mem.source = DMX_MEMORY_FE;
result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
if (result < 0) {
- printk(KERN_ERR "%s: add_frontend failed "
- "(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result);
+ pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
+ result);
goto fail_fe_mem;
}
result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
if (result < 0) {
- printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n",
- DRIVER_NAME, result);
+ pr_err("connect_frontend failed (errno = %d)\n", result);
goto fail_fe_conn;
}
@@ -530,8 +529,7 @@ void au0828_dvb_unregister(struct au0828_dev *dev)
for (i = 0; i < URB_COUNT; i++)
kfree(dev->dig_transfer_buffer[i]);
}
-
-
+ dvb->frontend = NULL;
}
/* All the DVB attach calls go here, this function get's modified
@@ -596,12 +594,11 @@ int au0828_dvb_register(struct au0828_dev *dev)
}
break;
default:
- printk(KERN_WARNING "The frontend of your DVB/ATSC card "
- "isn't supported yet\n");
+ pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n");
break;
}
if (NULL == dvb->frontend) {
- printk(KERN_ERR "%s() Frontend initialization failed\n",
+ pr_err("%s() Frontend initialization failed\n",
__func__);
return -1;
}
@@ -613,8 +610,49 @@ int au0828_dvb_register(struct au0828_dev *dev)
if (ret < 0) {
if (dvb->frontend->ops.release)
dvb->frontend->ops.release(dvb->frontend);
+ dvb->frontend = NULL;
return ret;
}
return 0;
}
+
+void au0828_dvb_suspend(struct au0828_dev *dev)
+{
+ struct au0828_dvb *dvb = &dev->dvb;
+ int rc;
+
+ if (dvb->frontend) {
+ if (dev->urb_streaming) {
+ cancel_work_sync(&dev->restart_streaming);
+ /* Stop transport */
+ mutex_lock(&dvb->lock);
+ stop_urb_transfer(dev);
+ au0828_stop_transport(dev, 1);
+ mutex_unlock(&dvb->lock);
+ dev->need_urb_start = true;
+ }
+ /* suspend frontend - does tuner and fe to sleep */
+ rc = dvb_frontend_suspend(dvb->frontend);
+ pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc);
+ }
+}
+
+void au0828_dvb_resume(struct au0828_dev *dev)
+{
+ struct au0828_dvb *dvb = &dev->dvb;
+ int rc;
+
+ if (dvb->frontend) {
+ /* resume frontend - does fe and tuner init */
+ rc = dvb_frontend_resume(dvb->frontend);
+ pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc);
+ if (dev->need_urb_start) {
+ /* Start transport */
+ mutex_lock(&dvb->lock);
+ au0828_start_transport(dev);
+ start_urb_transfer(dev);
+ mutex_unlock(&dvb->lock);
+ }
+ }
+}

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