X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?p=kvmfornfv.git;a=blobdiff_plain;f=kernel%2Fdrivers%2Fmedia%2Fplatform%2Fvivid%2Fvivid-sdr-cap.c;h=082c401764ce8ed359df38708d69ee5c649edbf4;hp=caf131666e37426f63029462b10839c83634fcdd;hb=e09b41010ba33a20a87472ee821fa407a5b8da36;hpb=f93b97fd65072de626c074dbe099a1fff05ce060 diff --git a/kernel/drivers/media/platform/vivid/vivid-sdr-cap.c b/kernel/drivers/media/platform/vivid/vivid-sdr-cap.c index caf131666..082c40176 100644 --- a/kernel/drivers/media/platform/vivid/vivid-sdr-cap.c +++ b/kernel/drivers/media/platform/vivid/vivid-sdr-cap.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -33,6 +34,25 @@ #include "vivid-ctrls.h" #include "vivid-sdr-cap.h" +/* stream formats */ +struct vivid_format { + u32 pixelformat; + u32 buffersize; +}; + +/* format descriptions for capture and preview */ +static const struct vivid_format formats[] = { + { + .pixelformat = V4L2_SDR_FMT_CU8, + .buffersize = SDR_CAP_SAMPLES_PER_BUF * 2, + }, { + .pixelformat = V4L2_SDR_FMT_CS8, + .buffersize = SDR_CAP_SAMPLES_PER_BUF * 2, + }, +}; + +static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats); + static const struct v4l2_frequency_band bands_adc[] = { { .tuner = 0, @@ -95,11 +115,11 @@ static void vivid_thread_sdr_cap_tick(struct vivid_dev *dev) spin_unlock(&dev->slock); if (sdr_cap_buf) { - sdr_cap_buf->vb.v4l2_buf.sequence = dev->sdr_cap_seq_count; + sdr_cap_buf->vb.sequence = dev->sdr_cap_seq_count; vivid_sdr_cap_process(dev, sdr_cap_buf); - v4l2_get_timestamp(&sdr_cap_buf->vb.v4l2_buf.timestamp); - sdr_cap_buf->vb.v4l2_buf.timestamp.tv_sec += dev->time_wrap_offset; - vb2_buffer_done(&sdr_cap_buf->vb, dev->dqbuf_error ? + v4l2_get_timestamp(&sdr_cap_buf->vb.timestamp); + sdr_cap_buf->vb.timestamp.tv_sec += dev->time_wrap_offset; + vb2_buffer_done(&sdr_cap_buf->vb.vb2_buf, dev->dqbuf_error ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); dev->dqbuf_error = false; } @@ -142,7 +162,8 @@ static int vivid_thread_sdr_cap(void *data) /* Calculate the number of jiffies since we started streaming */ jiffies_since_start = cur_jiffies - dev->jiffies_sdr_cap; /* Get the number of buffers streamed since the start */ - buffers_since_start = (u64)jiffies_since_start * dev->sdr_adc_freq + + buffers_since_start = + (u64)jiffies_since_start * dev->sdr_adc_freq + (HZ * SDR_CAP_SAMPLES_PER_BUF) / 2; do_div(buffers_since_start, HZ * SDR_CAP_SAMPLES_PER_BUF); @@ -157,7 +178,8 @@ static int vivid_thread_sdr_cap(void *data) dev->sdr_cap_seq_offset = buffers_since_start; buffers_since_start = 0; } - dev->sdr_cap_seq_count = buffers_since_start + dev->sdr_cap_seq_offset; + dev->sdr_cap_seq_count = + buffers_since_start + dev->sdr_cap_seq_offset; vivid_thread_sdr_cap_tick(dev); mutex_unlock(&dev->mutex); @@ -191,7 +213,7 @@ static int vivid_thread_sdr_cap(void *data) return 0; } -static int sdr_cap_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, +static int sdr_cap_queue_setup(struct vb2_queue *vq, const void *parg, unsigned *nbuffers, unsigned *nplanes, unsigned sizes[], void *alloc_ctxs[]) { @@ -228,8 +250,9 @@ static int sdr_cap_buf_prepare(struct vb2_buffer *vb) static void sdr_cap_buf_queue(struct vb2_buffer *vb) { + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); - struct vivid_buffer *buf = container_of(vb, struct vivid_buffer, vb); + struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); dprintk(dev, 1, "%s\n", __func__); @@ -263,7 +286,8 @@ static int sdr_cap_start_streaming(struct vb2_queue *vq, unsigned count) list_for_each_entry_safe(buf, tmp, &dev->sdr_cap_active, list) { list_del(&buf->list); - vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED); + vb2_buffer_done(&buf->vb.vb2_buf, + VB2_BUF_STATE_QUEUED); } } return err; @@ -280,9 +304,10 @@ static void sdr_cap_stop_streaming(struct vb2_queue *vq) while (!list_empty(&dev->sdr_cap_active)) { struct vivid_buffer *buf; - buf = list_entry(dev->sdr_cap_active.next, struct vivid_buffer, list); + buf = list_entry(dev->sdr_cap_active.next, + struct vivid_buffer, list); list_del(&buf->list); - vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); } /* shutdown control thread */ @@ -302,7 +327,8 @@ const struct vb2_ops vivid_sdr_cap_qops = { .wait_finish = vb2_ops_wait_finish, }; -int vivid_sdr_enum_freq_bands(struct file *file, void *fh, struct v4l2_frequency_band *band) +int vivid_sdr_enum_freq_bands(struct file *file, void *fh, + struct v4l2_frequency_band *band) { switch (band->tuner) { case 0: @@ -320,7 +346,8 @@ int vivid_sdr_enum_freq_bands(struct file *file, void *fh, struct v4l2_frequency } } -int vivid_sdr_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf) +int vivid_sdr_g_frequency(struct file *file, void *fh, + struct v4l2_frequency *vf) { struct vivid_dev *dev = video_drvdata(file); @@ -338,7 +365,8 @@ int vivid_sdr_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf } } -int vivid_sdr_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) +int vivid_sdr_s_frequency(struct file *file, void *fh, + const struct v4l2_frequency *vf) { struct vivid_dev *dev = video_drvdata(file); unsigned freq = vf->frequency; @@ -384,14 +412,16 @@ int vivid_sdr_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) case 0: strlcpy(vt->name, "ADC", sizeof(vt->name)); vt->type = V4L2_TUNER_ADC; - vt->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; + vt->capability = + V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; vt->rangelow = bands_adc[0].rangelow; vt->rangehigh = bands_adc[2].rangehigh; return 0; case 1: strlcpy(vt->name, "RF", sizeof(vt->name)); vt->type = V4L2_TUNER_RF; - vt->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; + vt->capability = + V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; vt->rangelow = bands_fm[0].rangelow; vt->rangehigh = bands_fm[0].rangehigh; return 0; @@ -409,65 +439,102 @@ int vivid_sdr_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) int vidioc_enum_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) { - if (f->index) + if (f->index >= ARRAY_SIZE(formats)) return -EINVAL; - f->pixelformat = V4L2_SDR_FMT_CU8; - strlcpy(f->description, "IQ U8", sizeof(f->description)); + f->pixelformat = formats[f->index].pixelformat; return 0; } int vidioc_g_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f) { - f->fmt.sdr.pixelformat = V4L2_SDR_FMT_CU8; - f->fmt.sdr.buffersize = SDR_CAP_SAMPLES_PER_BUF * 2; + struct vivid_dev *dev = video_drvdata(file); + + f->fmt.sdr.pixelformat = dev->sdr_pixelformat; + f->fmt.sdr.buffersize = dev->sdr_buffersize; + memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); + return 0; +} + +int vidioc_s_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct vb2_queue *q = &dev->vb_sdr_cap_q; + int i; + + if (vb2_is_busy(q)) + return -EBUSY; + + memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); + for (i = 0; i < ARRAY_SIZE(formats); i++) { + if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { + dev->sdr_pixelformat = formats[i].pixelformat; + dev->sdr_buffersize = formats[i].buffersize; + f->fmt.sdr.buffersize = formats[i].buffersize; + return 0; + } + } + dev->sdr_pixelformat = formats[0].pixelformat; + dev->sdr_buffersize = formats[0].buffersize; + f->fmt.sdr.pixelformat = formats[0].pixelformat; + f->fmt.sdr.buffersize = formats[0].buffersize; + return 0; +} + +int vidioc_try_fmt_sdr_cap(struct file *file, void *fh, struct v4l2_format *f) +{ + int i; + memset(f->fmt.sdr.reserved, 0, sizeof(f->fmt.sdr.reserved)); + for (i = 0; i < ARRAY_SIZE(formats); i++) { + if (formats[i].pixelformat == f->fmt.sdr.pixelformat) { + f->fmt.sdr.buffersize = formats[i].buffersize; + return 0; + } + } + f->fmt.sdr.pixelformat = formats[0].pixelformat; + f->fmt.sdr.buffersize = formats[0].buffersize; return 0; } #define FIXP_N (15) #define FIXP_FRAC (1 << FIXP_N) #define FIXP_2PI ((int)(2 * 3.141592653589 * FIXP_FRAC)) +#define M_100000PI (3.14159 * 100000) void vivid_sdr_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf) { - u8 *vbuf = vb2_plane_vaddr(&buf->vb, 0); + u8 *vbuf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); unsigned long i; - unsigned long plane_size = vb2_plane_size(&buf->vb, 0); + unsigned long plane_size = vb2_plane_size(&buf->vb.vb2_buf, 0); + s64 s64tmp; s32 src_phase_step; s32 mod_phase_step; s32 fixp_i; s32 fixp_q; - /* - * TODO: Generated beep tone goes very crackly when sample rate is - * increased to ~1Msps or more. That is because of huge rounding error - * of phase angle caused by used cosine implementation. - */ - /* calculate phase step */ #define BEEP_FREQ 1000 /* 1kHz beep */ src_phase_step = DIV_ROUND_CLOSEST(FIXP_2PI * BEEP_FREQ, - dev->sdr_adc_freq); + dev->sdr_adc_freq); for (i = 0; i < plane_size; i += 2) { mod_phase_step = fixp_cos32_rad(dev->sdr_fixp_src_phase, FIXP_2PI) >> (31 - FIXP_N); dev->sdr_fixp_src_phase += src_phase_step; - dev->sdr_fixp_mod_phase += mod_phase_step / 4; + s64tmp = (s64) mod_phase_step * dev->sdr_fm_deviation; + dev->sdr_fixp_mod_phase += div_s64(s64tmp, M_100000PI); /* - * Transfer phases to [0 / 2xPI] in order to avoid variable + * Transfer phase angle to [0, 2xPI] in order to avoid variable * overflow and make it suitable for cosine implementation * used, which does not support negative angles. */ - while (dev->sdr_fixp_mod_phase < FIXP_2PI) - dev->sdr_fixp_mod_phase += FIXP_2PI; - while (dev->sdr_fixp_mod_phase > FIXP_2PI) - dev->sdr_fixp_mod_phase -= FIXP_2PI; + dev->sdr_fixp_src_phase %= FIXP_2PI; + dev->sdr_fixp_mod_phase %= FIXP_2PI; - while (dev->sdr_fixp_src_phase > FIXP_2PI) - dev->sdr_fixp_src_phase -= FIXP_2PI; + if (dev->sdr_fixp_mod_phase < 0) + dev->sdr_fixp_mod_phase += FIXP_2PI; fixp_i = fixp_cos32_rad(dev->sdr_fixp_mod_phase, FIXP_2PI); fixp_q = fixp_sin32_rad(dev->sdr_fixp_mod_phase, FIXP_2PI); @@ -477,11 +544,25 @@ void vivid_sdr_cap_process(struct vivid_dev *dev, struct vivid_buffer *buf) fixp_i >>= (31 - FIXP_N); fixp_q >>= (31 - FIXP_N); - /* convert 'fixp float' to u8 */ - /* u8 = X * 127.5f + 127.5f; where X is float [-1.0 / +1.0] */ - fixp_i = fixp_i * 1275 + FIXP_FRAC * 1275; - fixp_q = fixp_q * 1275 + FIXP_FRAC * 1275; - *vbuf++ = DIV_ROUND_CLOSEST(fixp_i, FIXP_FRAC * 10); - *vbuf++ = DIV_ROUND_CLOSEST(fixp_q, FIXP_FRAC * 10); + switch (dev->sdr_pixelformat) { + case V4L2_SDR_FMT_CU8: + /* convert 'fixp float' to u8 [0, +255] */ + /* u8 = X * 127.5 + 127.5; X is float [-1.0, +1.0] */ + fixp_i = fixp_i * 1275 + FIXP_FRAC * 1275; + fixp_q = fixp_q * 1275 + FIXP_FRAC * 1275; + *vbuf++ = DIV_ROUND_CLOSEST(fixp_i, FIXP_FRAC * 10); + *vbuf++ = DIV_ROUND_CLOSEST(fixp_q, FIXP_FRAC * 10); + break; + case V4L2_SDR_FMT_CS8: + /* convert 'fixp float' to s8 [-128, +127] */ + /* s8 = X * 127.5 - 0.5; X is float [-1.0, +1.0] */ + fixp_i = fixp_i * 1275 - FIXP_FRAC * 5; + fixp_q = fixp_q * 1275 - FIXP_FRAC * 5; + *vbuf++ = DIV_ROUND_CLOSEST(fixp_i, FIXP_FRAC * 10); + *vbuf++ = DIV_ROUND_CLOSEST(fixp_q, FIXP_FRAC * 10); + break; + default: + break; + } } }