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authorPantelis Koukousoulas <pakt223@freemail.gr>2006-12-27 23:05:19 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2007-02-21 13:34:21 -0200
commit275b2e283b139bee19e7de5929d01484b8e3ee51 (patch)
treedbef39c440161762a14d119486dbc1fcd99c4455 /drivers/media/video/pvrusb2
parent0b600512860cab5a0bb4647f5f726a91bce2633c (diff)
downloadblackbird-op-linux-275b2e283b139bee19e7de5929d01484b8e3ee51.tar.gz
blackbird-op-linux-275b2e283b139bee19e7de5929d01484b8e3ee51.zip
V4L/DVB (5034): Pvrusb2: Enable radio mode round #1
This is the logic that supports switching modes via e.g., echo radio > /sys/class/pvrusb2/sn-*/ctl_input/cur_val. To do the mode switching we need to: a) broadcast AUDC_SET_RADIO and b) issue the CX2341X_ENC_MUTE_VIDEO command to the encoder. The first is done by adding a new pvr2_i2c_op and having it trigger on input change, the second by adding this command in pvr2_encoder_start() and requesting an encoder restart on input change by setting stale_subsys_mask appropriately. The clues about AUDC_SET_RADIO and CX2341X_ENC_MUTE_VIDEO were kindly provided by Hans Verkuil on the pvrusb2 mailing list. The idea to implement mode switching this way (on input change) is due to Mike Isely. Why AUDC_SET_RADIO/VIDIOC_S_STD are used for switching? I can 't be sure, but I think this can be traced to a cornell student being the first to implement radio support in ivtv "as a different standard". I think the rest just evolved from there (it 's in the ivtv ML archives). Signed-off-by: Pantelis Koukousoulas <pakt223@freemail.gr> Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/pvrusb2')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-encoder.c3
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-hdw.c7
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-i2c-chips-v4l2.c5
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c31
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.h1
5 files changed, 44 insertions, 3 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-encoder.c b/drivers/media/video/pvrusb2/pvrusb2-encoder.c
index c94f97b79392..d094cac9f7a5 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-encoder.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-encoder.c
@@ -360,6 +360,9 @@ int pvr2_encoder_start(struct pvr2_hdw *hdw)
pvr2_hdw_gpio_chg_dir(hdw,0xffffffff,0x00000481);
pvr2_hdw_gpio_chg_out(hdw,0xffffffff,0x00000000);
+ pvr2_encoder_vcmd(hdw,CX2341X_ENC_MUTE_VIDEO,1,
+ hdw->input_val == PVR2_CVAL_INPUT_RADIO ? 1 : 0);
+
if (hdw->config == pvr2_config_vbi) {
status = pvr2_encoder_vcmd(hdw,CX2341X_ENC_START_CAPTURE,2,
0x01,0x14);
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index 503255cebc2e..5f6ab998bbe7 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -2260,6 +2260,13 @@ static int pvr2_hdw_commit_ctl_internal(struct pvr2_hdw *hdw)
stale_subsys_mask |= (1<<PVR2_SUBSYS_B_ENC_CFG);
}
+ if (hdw->input_dirty) {
+ /* pk: If input changes to or from radio, then the encoder
+ needs to be restarted (for ENC_MUTE_VIDEO to work) */
+ stale_subsys_mask |= (1<<PVR2_SUBSYS_B_ENC_RUN);
+ }
+
+
if (hdw->srate_dirty) {
/* Write new sample rate into control structure since
* the master copy is stale. We must track srate
diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-chips-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-i2c-chips-v4l2.c
index 05121666b9ba..93b8d077c11e 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-i2c-chips-v4l2.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-chips-v4l2.c
@@ -39,6 +39,7 @@
#define OP_AUDIORATE 4
#define OP_SIZE 5
#define OP_LOG 6
+#define OP_RADIO 7
static const struct pvr2_i2c_op * const ops[] = {
[OP_STANDARD] = &pvr2_i2c_op_v4l2_standard,
@@ -47,6 +48,7 @@ static const struct pvr2_i2c_op * const ops[] = {
[OP_FREQ] = &pvr2_i2c_op_v4l2_frequency,
[OP_SIZE] = &pvr2_i2c_op_v4l2_size,
[OP_LOG] = &pvr2_i2c_op_v4l2_log,
+ [OP_RADIO] = &pvr2_i2c_op_v4l2_radio,
};
void pvr2_i2c_probe(struct pvr2_hdw *hdw,struct pvr2_i2c_client *cp)
@@ -58,7 +60,8 @@ void pvr2_i2c_probe(struct pvr2_hdw *hdw,struct pvr2_i2c_client *cp)
(1 << OP_VOLUME) |
(1 << OP_FREQ) |
(1 << OP_SIZE) |
- (1 << OP_LOG));
+ (1 << OP_LOG) |
+ (1 << OP_RADIO));
if (id == I2C_DRIVERID_MSP3400) {
if (pvr2_i2c_msp3400_setup(hdw,cp)) {
diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c
index 05ea17afe903..50fcceb15d51 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c
@@ -24,7 +24,7 @@
#include "pvrusb2-hdw-internal.h"
#include "pvrusb2-debug.h"
#include <linux/videodev2.h>
-
+#include <media/v4l2-common.h> /* AUDC_SET_RADIO */
static void set_standard(struct pvr2_hdw *hdw)
{
@@ -50,6 +50,32 @@ const struct pvr2_i2c_op pvr2_i2c_op_v4l2_standard = {
};
+static void set_radio(struct pvr2_hdw *hdw)
+{
+ pvr2_trace(PVR2_TRACE_CHIPS,
+ "i2c v4l2 set_radio()");
+
+ if (hdw->input_val == PVR2_CVAL_INPUT_RADIO) {
+ pvr2_i2c_core_cmd(hdw,AUDC_SET_RADIO,NULL);
+ } else {
+ set_standard(hdw);
+ }
+}
+
+
+static int check_radio(struct pvr2_hdw *hdw)
+{
+ return hdw->input_dirty != 0;
+}
+
+
+const struct pvr2_i2c_op pvr2_i2c_op_v4l2_radio = {
+ .check = check_radio,
+ .update = set_radio,
+ .name = "v4l2_radio",
+};
+
+
static void set_bcsh(struct pvr2_hdw *hdw)
{
struct v4l2_control ctrl;
@@ -145,7 +171,8 @@ static void set_frequency(struct pvr2_hdw *hdw)
memset(&freq,0,sizeof(freq));
freq.frequency = fv / 62500;
freq.tuner = 0;
- freq.type = V4L2_TUNER_ANALOG_TV;
+ freq.type = (hdw->input_val == PVR2_CVAL_INPUT_RADIO) ?
+ V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
pvr2_i2c_core_cmd(hdw,VIDIOC_S_FREQUENCY,&freq);
}
diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.h b/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.h
index ecabddba1ec5..894de610893b 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.h
@@ -26,6 +26,7 @@
#include "pvrusb2-i2c-core.h"
extern const struct pvr2_i2c_op pvr2_i2c_op_v4l2_standard;
+extern const struct pvr2_i2c_op pvr2_i2c_op_v4l2_radio;
extern const struct pvr2_i2c_op pvr2_i2c_op_v4l2_bcsh;
extern const struct pvr2_i2c_op pvr2_i2c_op_v4l2_volume;
extern const struct pvr2_i2c_op pvr2_i2c_op_v4l2_frequency;
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