pvrusb2-hdw.c

来自「trident tm5600的linux驱动」· C语言 代码 · 共 2,389 行 · 第 1/5 页

	return 0;
}

static int ctrl_get_cropcapbl(struct pvr2_ctrl *cptr, int *val)
{
	struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info;
	int stat = pvr2_hdw_check_cropcap(cptr->hdw);
	if (stat != 0) {
		return stat;
	}
	*val = cap->bounds.left;
	return 0;
}

static int ctrl_get_cropcapbt(struct pvr2_ctrl *cptr, int *val)
{
	struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info;
	int stat = pvr2_hdw_check_cropcap(cptr->hdw);
	if (stat != 0) {
		return stat;
	}
	*val = cap->bounds.top;
	return 0;
}

static int ctrl_get_cropcapbw(struct pvr2_ctrl *cptr, int *val)
{
	struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info;
	int stat = pvr2_hdw_check_cropcap(cptr->hdw);
	if (stat != 0) {
		return stat;
	}
	*val = cap->bounds.width;
	return 0;
}

static int ctrl_get_cropcapbh(struct pvr2_ctrl *cptr, int *val)
{
	struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info;
	int stat = pvr2_hdw_check_cropcap(cptr->hdw);
	if (stat != 0) {
		return stat;
	}
	*val = cap->bounds.height;
	return 0;
}

static int ctrl_get_cropcapdl(struct pvr2_ctrl *cptr, int *val)
{
	struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info;
	int stat = pvr2_hdw_check_cropcap(cptr->hdw);
	if (stat != 0) {
		return stat;
	}
	*val = cap->defrect.left;
	return 0;
}

static int ctrl_get_cropcapdt(struct pvr2_ctrl *cptr, int *val)
{
	struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info;
	int stat = pvr2_hdw_check_cropcap(cptr->hdw);
	if (stat != 0) {
		return stat;
	}
	*val = cap->defrect.top;
	return 0;
}

static int ctrl_get_cropcapdw(struct pvr2_ctrl *cptr, int *val)
{
	struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info;
	int stat = pvr2_hdw_check_cropcap(cptr->hdw);
	if (stat != 0) {
		return stat;
	}
	*val = cap->defrect.width;
	return 0;
}

static int ctrl_get_cropcapdh(struct pvr2_ctrl *cptr, int *val)
{
	struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info;
	int stat = pvr2_hdw_check_cropcap(cptr->hdw);
	if (stat != 0) {
		return stat;
	}
	*val = cap->defrect.height;
	return 0;
}

static int ctrl_get_cropcappan(struct pvr2_ctrl *cptr, int *val)
{
	struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info;
	int stat = pvr2_hdw_check_cropcap(cptr->hdw);
	if (stat != 0) {
		return stat;
	}
	*val = cap->pixelaspect.numerator;
	return 0;
}

static int ctrl_get_cropcappad(struct pvr2_ctrl *cptr, int *val)
{
	struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info;
	int stat = pvr2_hdw_check_cropcap(cptr->hdw);
	if (stat != 0) {
		return stat;
	}
	*val = cap->pixelaspect.denominator;
	return 0;
}

static int ctrl_vres_max_get(struct pvr2_ctrl *cptr,int *vp)
{
	/* Actual maximum depends on the video standard in effect. */
	if (cptr->hdw->std_mask_cur & V4L2_STD_525_60) {
		*vp = 480;
	} else {
		*vp = 576;
	}
	return 0;
}

static int ctrl_vres_min_get(struct pvr2_ctrl *cptr,int *vp)
{
	/* Actual minimum depends on device digitizer type. */
	if (cptr->hdw->hdw_desc->flag_has_cx25840) {
		*vp = 75;
	} else {
		*vp = 17;
	}
	return 0;
}

static int ctrl_get_input(struct pvr2_ctrl *cptr,int *vp)
{
	*vp = cptr->hdw->input_val;
	return 0;
}

static int ctrl_check_input(struct pvr2_ctrl *cptr,int v)
{
	return ((1 << v) & cptr->hdw->input_allowed_mask) != 0;
}

static int ctrl_set_input(struct pvr2_ctrl *cptr,int m,int v)
{
	return pvr2_hdw_set_input(cptr->hdw,v);
}

static int ctrl_isdirty_input(struct pvr2_ctrl *cptr)
{
	return cptr->hdw->input_dirty != 0;
}

static void ctrl_cleardirty_input(struct pvr2_ctrl *cptr)
{
	cptr->hdw->input_dirty = 0;
}


static int ctrl_freq_max_get(struct pvr2_ctrl *cptr, int *vp)
{
	unsigned long fv;
	struct pvr2_hdw *hdw = cptr->hdw;
	if (hdw->tuner_signal_stale) {
		pvr2_i2c_core_status_poll(hdw);
	}
	fv = hdw->tuner_signal_info.rangehigh;
	if (!fv) {
		/* Safety fallback */
		*vp = TV_MAX_FREQ;
		return 0;
	}
	if (hdw->tuner_signal_info.capability & V4L2_TUNER_CAP_LOW) {
		fv = (fv * 125) / 2;
	} else {
		fv = fv * 62500;
	}
	*vp = fv;
	return 0;
}

static int ctrl_freq_min_get(struct pvr2_ctrl *cptr, int *vp)
{
	unsigned long fv;
	struct pvr2_hdw *hdw = cptr->hdw;
	if (hdw->tuner_signal_stale) {
		pvr2_i2c_core_status_poll(hdw);
	}
	fv = hdw->tuner_signal_info.rangelow;
	if (!fv) {
		/* Safety fallback */
		*vp = TV_MIN_FREQ;
		return 0;
	}
	if (hdw->tuner_signal_info.capability & V4L2_TUNER_CAP_LOW) {
		fv = (fv * 125) / 2;
	} else {
		fv = fv * 62500;
	}
	*vp = fv;
	return 0;
}

static int ctrl_cx2341x_is_dirty(struct pvr2_ctrl *cptr)
{
	return cptr->hdw->enc_stale != 0;
}

static void ctrl_cx2341x_clear_dirty(struct pvr2_ctrl *cptr)
{
	cptr->hdw->enc_stale = 0;
	cptr->hdw->enc_unsafe_stale = 0;
}

static int ctrl_cx2341x_get(struct pvr2_ctrl *cptr,int *vp)
{
	int ret;
	struct v4l2_ext_controls cs;
	struct v4l2_ext_control c1;
	memset(&cs,0,sizeof(cs));
	memset(&c1,0,sizeof(c1));
	cs.controls = &c1;
	cs.count = 1;
	c1.id = cptr->info->v4l_id;
	ret = cx2341x_ext_ctrls(&cptr->hdw->enc_ctl_state, 0, &cs,
				VIDIOC_G_EXT_CTRLS);
	if (ret) return ret;
	*vp = c1.value;
	return 0;
}

static int ctrl_cx2341x_set(struct pvr2_ctrl *cptr,int m,int v)
{
	int ret;
	struct pvr2_hdw *hdw = cptr->hdw;
	struct v4l2_ext_controls cs;
	struct v4l2_ext_control c1;
	memset(&cs,0,sizeof(cs));
	memset(&c1,0,sizeof(c1));
	cs.controls = &c1;
	cs.count = 1;
	c1.id = cptr->info->v4l_id;
	c1.value = v;
	ret = cx2341x_ext_ctrls(&hdw->enc_ctl_state,
				hdw->state_encoder_run, &cs,
				VIDIOC_S_EXT_CTRLS);
	if (ret == -EBUSY) {
		/* Oops.  cx2341x is telling us it's not safe to change
		   this control while we're capturing.  Make a note of this
		   fact so that the pipeline will be stopped the next time
		   controls are committed.  Then go on ahead and store this
		   change anyway. */
		ret = cx2341x_ext_ctrls(&hdw->enc_ctl_state,
					0, &cs,
					VIDIOC_S_EXT_CTRLS);
		if (!ret) hdw->enc_unsafe_stale = !0;
	}
	if (ret) return ret;
	hdw->enc_stale = !0;
	return 0;
}

static unsigned int ctrl_cx2341x_getv4lflags(struct pvr2_ctrl *cptr)
{
	struct v4l2_queryctrl qctrl;
	struct pvr2_ctl_info *info;
	qctrl.id = cptr->info->v4l_id;
	cx2341x_ctrl_query(&cptr->hdw->enc_ctl_state,&qctrl);
	/* Strip out the const so we can adjust a function pointer.  It's
	   OK to do this here because we know this is a dynamically created
	   control, so the underlying storage for the info pointer is (a)
	   private to us, and (b) not in read-only storage.  Either we do
	   this or we significantly complicate the underlying control
	   implementation. */
	info = (struct pvr2_ctl_info *)(cptr->info);
	if (qctrl.flags & V4L2_CTRL_FLAG_READ_ONLY) {
		if (info->set_value) {
			info->set_value = NULL;
		}
	} else {
		if (!(info->set_value)) {
			info->set_value = ctrl_cx2341x_set;
		}
	}
	return qctrl.flags;
}

static int ctrl_streamingenabled_get(struct pvr2_ctrl *cptr,int *vp)
{
	*vp = cptr->hdw->state_pipeline_req;
	return 0;
}

static int ctrl_masterstate_get(struct pvr2_ctrl *cptr,int *vp)
{
	*vp = cptr->hdw->master_state;
	return 0;
}

static int ctrl_hsm_get(struct pvr2_ctrl *cptr,int *vp)
{
	int result = pvr2_hdw_is_hsm(cptr->hdw);
	*vp = PVR2_CVAL_HSM_FULL;
	if (result < 0) *vp = PVR2_CVAL_HSM_FAIL;
	if (result) *vp = PVR2_CVAL_HSM_HIGH;
	return 0;
}

static int ctrl_stdavail_get(struct pvr2_ctrl *cptr,int *vp)
{
	*vp = cptr->hdw->std_mask_avail;
	return 0;
}

static int ctrl_stdavail_set(struct pvr2_ctrl *cptr,int m,int v)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	v4l2_std_id ns;
	ns = hdw->std_mask_avail;
	ns = (ns & ~m) | (v & m);
	if (ns == hdw->std_mask_avail) return 0;
	hdw->std_mask_avail = ns;
	pvr2_hdw_internal_set_std_avail(hdw);
	pvr2_hdw_internal_find_stdenum(hdw);
	return 0;
}

static int ctrl_std_val_to_sym(struct pvr2_ctrl *cptr,int msk,int val,
			       char *bufPtr,unsigned int bufSize,
			       unsigned int *len)
{
	*len = pvr2_std_id_to_str(bufPtr,bufSize,msk & val);
	return 0;
}

static int ctrl_std_sym_to_val(struct pvr2_ctrl *cptr,
			       const char *bufPtr,unsigned int bufSize,
			       int *mskp,int *valp)
{
	int ret;
	v4l2_std_id id;
	ret = pvr2_std_str_to_id(&id,bufPtr,bufSize);
	if (ret < 0) return ret;
	if (mskp) *mskp = id;
	if (valp) *valp = id;
	return 0;
}

static int ctrl_stdcur_get(struct pvr2_ctrl *cptr,int *vp)
{
	*vp = cptr->hdw->std_mask_cur;
	return 0;
}

static int ctrl_stdcur_set(struct pvr2_ctrl *cptr,int m,int v)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	v4l2_std_id ns;
	ns = hdw->std_mask_cur;
	ns = (ns & ~m) | (v & m);
	if (ns == hdw->std_mask_cur) return 0;
	hdw->std_mask_cur = ns;
	hdw->std_dirty = !0;
	pvr2_hdw_internal_find_stdenum(hdw);
	return 0;
}

static int ctrl_stdcur_is_dirty(struct pvr2_ctrl *cptr)
{
	return cptr->hdw->std_dirty != 0;
}

static void ctrl_stdcur_clear_dirty(struct pvr2_ctrl *cptr)
{
	cptr->hdw->std_dirty = 0;
}

static int ctrl_signal_get(struct pvr2_ctrl *cptr,int *vp)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	pvr2_i2c_core_status_poll(hdw);
	*vp = hdw->tuner_signal_info.signal;
	return 0;
}

static int ctrl_audio_modes_present_get(struct pvr2_ctrl *cptr,int *vp)
{
	int val = 0;
	unsigned int subchan;
	struct pvr2_hdw *hdw = cptr->hdw;
	pvr2_i2c_core_status_poll(hdw);
	subchan = hdw->tuner_signal_info.rxsubchans;
	if (subchan & V4L2_TUNER_SUB_MONO) {
		val |= (1 << V4L2_TUNER_MODE_MONO);
	}
	if (subchan & V4L2_TUNER_SUB_STEREO) {
		val |= (1 << V4L2_TUNER_MODE_STEREO);
	}
	if (subchan & V4L2_TUNER_SUB_LANG1) {
		val |= (1 << V4L2_TUNER_MODE_LANG1);
	}
	if (subchan & V4L2_TUNER_SUB_LANG2) {
		val |= (1 << V4L2_TUNER_MODE_LANG2);
	}
	*vp = val;
	return 0;
}


static int ctrl_stdenumcur_set(struct pvr2_ctrl *cptr,int m,int v)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	if (v < 0) return -EINVAL;
	if (v > hdw->std_enum_cnt) return -EINVAL;
	hdw->std_enum_cur = v;
	if (!v) return 0;
	v--;
	if (hdw->std_mask_cur == hdw->std_defs[v].id) return 0;
	hdw->std_mask_cur = hdw->std_defs[v].id;
	hdw->std_dirty = !0;
	return 0;
}


static int ctrl_stdenumcur_get(struct pvr2_ctrl *cptr,int *vp)
{
	*vp = cptr->hdw->std_enum_cur;
	return 0;
}


static int ctrl_stdenumcur_is_dirty(struct pvr2_ctrl *cptr)
{
	return cptr->hdw->std_dirty != 0;
}


static void ctrl_stdenumcur_clear_dirty(struct pvr2_ctrl *cptr)
{
	cptr->hdw->std_dirty = 0;
}


#define DEFINT(vmin,vmax) \
	.type = pvr2_ctl_int, \
	.def.type_int.min_value = vmin, \
	.def.type_int.max_value = vmax

#define DEFENUM(tab) \
	.type = pvr2_ctl_enum, \
	.def.type_enum.count = ARRAY_SIZE(tab), \
	.def.type_enum.value_names = tab

#define DEFBOOL \
	.type = pvr2_ctl_bool

#define DEFMASK(msk,tab) \
	.type = pvr2_ctl_bitmask, \
	.def.type_bitmask.valid_bits = msk, \
	.def.type_bitmask.bit_names = tab

#define DEFREF(vname) \
	.set_value = ctrl_set_##vname, \
	.get_value = ctrl_get_##vname, \
	.is_dirty = ctrl_isdirty_##vname, \
	.clear_dirty = ctrl_cleardirty_##vname


#define VCREATE_FUNCS(vname) \
static int ctrl_get_##vname(struct pvr2_ctrl *cptr,int *vp) \
{*vp = cptr->hdw->vname##_val; return 0;} \
static int ctrl_set_##vname(struct pvr2_ctrl *cptr,int m,int v) \
{cptr->hdw->vname##_val = v; cptr->hdw->vname##_dirty = !0; return 0;} \
static int ctrl_isdirty_##vname(struct pvr2_ctrl *cptr) \
{return cptr->hdw->vname##_dirty != 0;} \