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Experimental Kernel swradio driver.

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This commit is contained in:
John Greb
2014-11-05 21:19:25 +00:00
parent 62656fc45b
commit 86f256dbc4
8 changed files with 79 additions and 100 deletions
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plugins/samplesource/v4l/v4lsource.cpp
+18 -22
View File
@@ -18,6 +18,7 @@
*/
#include "v4lsource.h"
#include "v4linput.h"
/* Control classes */
#define V4L2_CTRL_CLASS_USER 0x00980000 /* Old-style 'user' controls */
@@ -33,8 +34,8 @@
#define CID_TUNER_IF ((V4L2_CID_USER_BASE | 0xf000) + 12)
#define CID_TUNER_GAIN ((V4L2_CID_USER_BASE | 0xf000) + 13)
#define V4L2_PIX_FMT_SDR_U8 v4l2_fourcc('D', 'U', '0', '8') /* unsigned 8-bit */
#define V4L2_PIX_FMT_SDR_U16LE v4l2_fourcc('D', 'U', '1', '6') /* unsigned 16-bit LE */
#define V4L2_PIX_FMT_SDR_U8 v4l2_fourcc('C', 'U', '0', '8') /* unsigned 8-bit Complex*/
#define V4L2_PIX_FMT_SDR_U16LE v4l2_fourcc('C', 'U', '1', '6') /* unsigned 16-bit Complex*/
#define CLEAR(x) memset(&(x), 0, sizeof(x))
@@ -50,9 +51,8 @@ static void xioctl(int fh, unsigned long int request, void *arg)
}
}
namespace kernel{
v4l::v4l(const char *filename)
void
V4LInput::OpenSource(const char *filename)
{
struct v4l2_format fmt;
struct v4l2_buffer buf;
@@ -89,7 +89,7 @@ namespace kernel{
req.memory = V4L2_MEMORY_MMAP;
xioctl(fd, VIDIOC_REQBUFS, &req);
buffers = (struct buffer*) calloc(req.count, sizeof(*buffers));
buffers = (struct v4l_buffer*) calloc(req.count, sizeof(*buffers));
for (n_buffers = 0; n_buffers < req.count; n_buffers++) {
CLEAR(buf);
buf.type = V4L2_BUF_TYPE_SDR_CAPTURE;
@@ -120,10 +120,8 @@ namespace kernel{
xioctl(fd, VIDIOC_STREAMON, &type);
}
/*
* Our virtual destructor.
*/
v4l::~v4l()
void
V4LInput::CloseSource()
{
unsigned int i;
enum v4l2_buf_type type;
@@ -138,8 +136,8 @@ namespace kernel{
v4l2_close(fd);
}
void
v4l::set_samp_rate(double samp_rate)
void
V4LInput::set_sample_rate(double samp_rate)
{
struct v4l2_frequency frequency;
@@ -154,8 +152,8 @@ namespace kernel{
return;
}
void
v4l::set_center_freq(double freq)
void
V4LInput::set_center_freq(double freq)
{
struct v4l2_frequency frequency;
@@ -170,8 +168,8 @@ namespace kernel{
return;
}
void
v4l::set_bandwidth(double bandwidth)
void
V4LInput::set_bandwidth(double bandwidth)
{
struct v4l2_ext_controls ext_ctrls;
struct v4l2_ext_control ext_ctrl;
@@ -191,8 +189,8 @@ namespace kernel{
return;
}
void
v4l::set_tuner_gain(double gain)
void
V4LInput::set_tuner_gain(double gain)
{
struct v4l2_ext_controls ext_ctrls;
struct v4l2_ext_control ext_ctrl;
@@ -212,8 +210,8 @@ namespace kernel{
return;
}
int
v4l::work(int noutput_items,
int
V4LInput::work(int noutput_items,
void* input_items,
void* output_items)
{
@@ -297,5 +295,3 @@ process_buf:
return 0;
}
} /* namespace kernel */