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Correct V4L control IDs.

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This commit is contained in:
hexameron 2015-05-21 15:32:18 +00:00
parent 5b475a5331
commit c46e841a48
1 changed files with 25 additions and 25 deletions
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50
plugins/samplesource/v4l-msi/v4lsource.cpp
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@ -29,19 +29,13 @@
#include <fcntl.h> #include <fcntl.h>
#include <sys/mman.h> #include <sys/mman.h>
/* Control classes */ #define CID_CLASS_RF (0x00a20000)
#define V4L2_CTRL_CLASS_USER 0x00980000 /* Old-style 'user' controls */ #define CID_RF_TUNER_CLASS_BASE (0x00a20900)
/* User-class control IDs */ #define CID_TUNER_BW_AUTO (CID_RF_TUNER_CLASS_BASE + 11)
#define V4L2_CID_BASE (V4L2_CTRL_CLASS_USER | 0x900) #define CID_TUNER_BW (CID_RF_TUNER_CLASS_BASE + 12)
#define V4L2_CID_USER_BASE V4L2_CID_BASE #define CID_TUNER_LNA_GAIN (CID_RF_TUNER_CLASS_BASE + 42)
#define CID_TUNER_MIXER_GAIN (CID_RF_TUNER_CLASS_BASE + 52)
#define CID_SAMPLING_MODE ((V4L2_CID_USER_BASE | 0xf000) + 0) #define CID_TUNER_IF_GAIN (CID_RF_TUNER_CLASS_BASE + 62)
#define CID_SAMPLING_RATE ((V4L2_CID_USER_BASE | 0xf000) + 1)
#define CID_SAMPLING_RESOLUTION ((V4L2_CID_USER_BASE | 0xf000) + 2)
#define CID_TUNER_RF ((V4L2_CID_USER_BASE | 0xf000) + 10)
#define CID_TUNER_BW ((V4L2_CID_USER_BASE | 0xf000) + 11)
#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('C', 'U', '0', '8') /* unsigned 8-bit Complex*/ #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 V4L2_PIX_FMT_SDR_U16LE v4l2_fourcc('C', 'U', '1', '6') /* unsigned 16-bit Complex*/
@ -77,12 +71,11 @@ V4LThread::OpenSource(const char *filename)
qCritical("Cannot open /dev/swradio0 :%d", fd); qCritical("Cannot open /dev/swradio0 :%d", fd);
return; return;
} }
// sampletype depends on samplerate. Set that first
set_sample_rate( (double)SAMPLERATE ); set_sample_rate( (double)SAMPLERATE );
set_center_freq( (double)centerFreq ); set_center_freq( (double)centerFreq );
set_bandwidth( (double)IF_BANDWIDTH ); set_bandwidth( (double)IF_BANDWIDTH );
set_tuner_gain( (double) 6.0); set_tuner_gain( (double) 6.0);
#if 0
struct v4l2_format fmt; struct v4l2_format fmt;
pixelformat = V4L2_PIX_FMT_SDR_CS14LE; pixelformat = V4L2_PIX_FMT_SDR_CS14LE;
CLEAR(fmt); CLEAR(fmt);
@ -90,7 +83,7 @@ V4LThread::OpenSource(const char *filename)
fmt.fmt.sdr.pixelformat = pixelformat; fmt.fmt.sdr.pixelformat = pixelformat;
xioctl(fd, VIDIOC_S_FMT, &fmt); xioctl(fd, VIDIOC_S_FMT, &fmt);
qCritical(" Expecting format CS14LE, got : %4.4s", (char *)&fmt.fmt.sdr.pixelformat); qCritical(" Expecting format CS14LE, got : %4.4s", (char *)&fmt.fmt.sdr.pixelformat);
#endif
CLEAR(req); CLEAR(req);
req.count = 8; req.count = 8;
req.type = V4L2_BUF_TYPE_SDR_CAPTURE; req.type = V4L2_BUF_TYPE_SDR_CAPTURE;
@ -159,7 +152,7 @@ V4LThread::set_sample_rate(double samp_rate)
return; return;
} }
// Cannot change freq while streaming in Linux 4.0 // Cannot change freq while streaming
void void
V4LThread::set_center_freq(double freq) V4LThread::set_center_freq(double freq)
{ {
@ -183,15 +176,25 @@ V4LThread::set_bandwidth(double bandwidth)
struct v4l2_ext_controls ext_ctrls; struct v4l2_ext_controls ext_ctrls;
struct v4l2_ext_control ext_ctrl; struct v4l2_ext_control ext_ctrl;
if (fd <= 0)
return;
memset (&ext_ctrl, 0, sizeof(ext_ctrl));
ext_ctrl.id = CID_TUNER_BW_AUTO;
ext_ctrl.value = 0;
memset (&ext_ctrls, 0, sizeof(ext_ctrls));
ext_ctrls.ctrl_class = CID_CLASS_RF;
ext_ctrls.count = 1;
ext_ctrls.controls = &ext_ctrl;
xioctl(fd, VIDIOC_S_EXT_CTRLS, &ext_ctrls);
memset (&ext_ctrl, 0, sizeof(ext_ctrl)); memset (&ext_ctrl, 0, sizeof(ext_ctrl));
ext_ctrl.id = CID_TUNER_BW; ext_ctrl.id = CID_TUNER_BW;
ext_ctrl.value = bandwidth; ext_ctrl.value = bandwidth;
memset (&ext_ctrls, 0, sizeof(ext_ctrls)); memset (&ext_ctrls, 0, sizeof(ext_ctrls));
ext_ctrls.ctrl_class = V4L2_CTRL_CLASS_USER; ext_ctrls.ctrl_class = CID_CLASS_RF;
ext_ctrls.count = 1; ext_ctrls.count = 1;
ext_ctrls.controls = &ext_ctrl; ext_ctrls.controls = &ext_ctrl;
xioctl(fd, VIDIOC_S_EXT_CTRLS, &ext_ctrls); xioctl(fd, VIDIOC_S_EXT_CTRLS, &ext_ctrls);
return; return;
@ -206,16 +209,13 @@ V4LThread::set_tuner_gain(double gain)
if (fd <= 0) if (fd <= 0)
return; return;
memset (&ext_ctrl, 0, sizeof(ext_ctrl)); memset (&ext_ctrl, 0, sizeof(ext_ctrl));
ext_ctrl.id = CID_TUNER_GAIN; ext_ctrl.id = CID_TUNER_IF_GAIN;
ext_ctrl.value = gain; ext_ctrl.value = gain;
memset (&ext_ctrls, 0, sizeof(ext_ctrls)); memset (&ext_ctrls, 0, sizeof(ext_ctrls));
ext_ctrls.ctrl_class = V4L2_CTRL_CLASS_USER; ext_ctrls.ctrl_class = CID_CLASS_RF;
ext_ctrls.count = 1; ext_ctrls.count = 1;
ext_ctrls.controls = &ext_ctrl; ext_ctrls.controls = &ext_ctrl;
xioctl(fd, VIDIOC_S_EXT_CTRLS, &ext_ctrls); xioctl(fd, VIDIOC_S_EXT_CTRLS, &ext_ctrls);
return; return;
} }