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Commit edb9dcb8 authored by Mike Isely's avatar Mike Isely Committed by Mauro Carvalho Chehab
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V4L/DVB (11175): pvrusb2: Implement sub-device specific update framework 



Lay down a foundation whereby it becomes possible to send customized
updates to specific sub-devices.  (This becomes useful for routing
configuration, which is a very sub-device specific operation.)

Signed-off-by: default avatarMike Isely <isely@pobox.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 858f910e

drivers/media/video/pvrusb2/pvrusb2-hdw.c

+18 −1
Original line number Diff line number Diff line
@@ -105,6 +105,13 @@ MODULE_PARM_DESC(radio_freq, "specify initial radio frequency"); 
/* size of a firmware chunk */

#define FIRMWARE_CHUNK_SIZE 0x2000



typedef void (*pvr2_subdev_update_func)(struct pvr2_hdw *,

					struct v4l2_subdev *);



static const pvr2_subdev_update_func pvr2_module_update_functions[] = {

	/* ????? */

};



static const char *module_names[] = {

	[PVR2_CLIENT_ID_MSP3400] = "msp3400",

	[PVR2_CLIENT_ID_CX25840] = "cx25840",
@@ -2900,6 +2907,10 @@ static void pvr2_subdev_set_control(struct pvr2_hdw *hdw, int id, 
   sub-devices so that they match our current control values. */

static void pvr2_subdev_update(struct pvr2_hdw *hdw)

{

	struct v4l2_subdev *sd;

	unsigned int id;

	pvr2_subdev_update_func fp;



	if (hdw->input_dirty || hdw->std_dirty) {

		pvr2_trace(PVR2_TRACE_CHIPS,"subdev v4l2 set_standard");

		if (hdw->input_val == PVR2_CVAL_INPUT_RADIO) {
@@ -2971,7 +2982,13 @@ static void pvr2_subdev_update(struct pvr2_hdw *hdw) 
	/* Unable to set crop parameters; there is apparently no equivalent

	   for VIDIOC_S_CROP */



	/* ????? Cover special cases for specific sub-devices. */

	v4l2_device_for_each_subdev(sd, &hdw->v4l2_dev) {

		id = sd->grp_id;

		if (id >= ARRAY_SIZE(pvr2_module_update_functions)) continue;

		fp = pvr2_module_update_functions[id];

		if (!fp) continue;

		(*fp)(hdw, sd);

	}



	if (hdw->tuner_signal_stale && hdw->cropcap_stale) {

		pvr2_hdw_status_poll(hdw);