V4L/DVB (3103): Add VIDIOC_LOG_STATUS to tuner-core.c

- Mark tda9887.c status log values as hexadecimal (add 0x prefix).
Add VIDIOC_LOG_STATUS support to tuner-core.c.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>

1 files changed, 35 insertions, 0 deletions

diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index c13c7b95ef3..ae76113886f 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -475,6 +475,38 @@ static inline int check_v4l2(struct tuner *t)
         return 0;
 }
 
+static void tuner_status(struct i2c_client *client)
+{
+        struct tuner *t = i2c_get_clientdata(client);
+        unsigned long freq, freq_fraction;
+        const char *p;
+
+        switch (t->mode) {
+                case V4L2_TUNER_RADIO:      p = "radio"; break;
+                case V4L2_TUNER_ANALOG_TV:  p = "analog TV"; break;
+                case V4L2_TUNER_DIGITAL_TV: p = "digital TV"; break;
+                default: p = "undefined"; break;
+        }
+        if (t->mode == V4L2_TUNER_RADIO) {
+                freq = t->freq / 16000;
+                freq_fraction = (t->freq % 16000) * 100 / 16000;
+        } else {
+                freq = t->freq / 16;
+                freq_fraction = (t->freq % 16) * 100 / 16;
+        }
+        tuner_info("Tuner mode:      %s\n", p);
+        tuner_info("Frequency:       %lu.%02lu MHz\n", freq, freq_fraction);
+        tuner_info("Standard:        0x%08llx\n", t->std);
+        if (t->mode == V4L2_TUNER_RADIO) {
+                if (t->has_signal) {
+                        tuner_info("Signal strength: %d\n", t->has_signal(client));
+                }
+                if (t->is_stereo) {
+                        tuner_info("Stereo:          %s\n", t->is_stereo(client) ? "yes" : "no");
+                }
+        }
+}
+
 static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 {
         struct tuner *t = i2c_get_clientdata(client);
@@ -708,6 +740,9 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
                         }
                         break;
                 }
+        case VIDIOC_LOG_STATUS:
+                tuner_status(client);
+                break;
         default:
                 tuner_dbg("Unimplemented IOCTL 0x%08x(dir=%d,tp='%c',nr=%d,sz=%d)\n",
                                          cmd, _IOC_DIR(cmd), _IOC_TYPE(cmd),