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[media] v4l2-ctrls: add new RDS TX controls

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The si4713 supports several RDS features not yet implemented in the driver.

This patch adds the missing RDS functionality to the list of RDS controls.

The ALT_FREQS control is a compound control containing an array of up
to 25 (the maximum according to the RDS standard) frequencies. To support
that the V4L2_CTRL_TYPE_U32 was added.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil 2014-07-21 10:45:37 -03:00 committed by Mauro Carvalho Chehab
parent 1612f20ea0
commit 811c508104
4 changed files with 48 additions and 0 deletions
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35
drivers/media/v4l2-core/v4l2-ctrls.c
View file

@ -805,6 +805,15 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_RDS_TX_PTY: return "RDS Program Type";
case V4L2_CID_RDS_TX_PS_NAME: return "RDS PS Name";
case V4L2_CID_RDS_TX_RADIO_TEXT: return "RDS Radio Text";
case V4L2_CID_RDS_TX_MONO_STEREO: return "RDS Stereo";
case V4L2_CID_RDS_TX_ARTIFICIAL_HEAD: return "RDS Artificial Head";
case V4L2_CID_RDS_TX_COMPRESSED: return "RDS Compressed";
case V4L2_CID_RDS_TX_DYNAMIC_PTY: return "RDS Dynamic PTY";
case V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT: return "RDS Traffic Announcement";
case V4L2_CID_RDS_TX_TRAFFIC_PROGRAM: return "RDS Traffic Program";
case V4L2_CID_RDS_TX_MUSIC_SPEECH: return "RDS Music";
case V4L2_CID_RDS_TX_ALT_FREQS_ENABLE: return "RDS Enable Alt Frequencies";
case V4L2_CID_RDS_TX_ALT_FREQS: return "RDS Alternate Frequencies";
case V4L2_CID_AUDIO_LIMITER_ENABLED: return "Audio Limiter Feature Enabled";
case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME: return "Audio Limiter Release Time";
case V4L2_CID_AUDIO_LIMITER_DEVIATION: return "Audio Limiter Deviation";
@ -946,6 +955,14 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
case V4L2_CID_RF_TUNER_IF_GAIN_AUTO:
case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:
case V4L2_CID_RF_TUNER_PLL_LOCK:
case V4L2_CID_RDS_TX_MONO_STEREO:
case V4L2_CID_RDS_TX_ARTIFICIAL_HEAD:
case V4L2_CID_RDS_TX_COMPRESSED:
case V4L2_CID_RDS_TX_DYNAMIC_PTY:
case V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT:
case V4L2_CID_RDS_TX_TRAFFIC_PROGRAM:
case V4L2_CID_RDS_TX_MUSIC_SPEECH:
case V4L2_CID_RDS_TX_ALT_FREQS_ENABLE:
*type = V4L2_CTRL_TYPE_BOOLEAN;
*min = 0;
*max = *step = 1;
@ -1089,6 +1106,9 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
case V4L2_CID_DETECT_MD_THRESHOLD_GRID:
*type = V4L2_CTRL_TYPE_U16;
break;
case V4L2_CID_RDS_TX_ALT_FREQS:
*type = V4L2_CTRL_TYPE_U32;
break;
default:
*type = V4L2_CTRL_TYPE_INTEGER;
break;
@ -1209,6 +1229,8 @@ static bool std_equal(const struct v4l2_ctrl *ctrl, u32 idx,
return ptr1.p_u8[idx] == ptr2.p_u8[idx];
case V4L2_CTRL_TYPE_U16:
return ptr1.p_u16[idx] == ptr2.p_u16[idx];
case V4L2_CTRL_TYPE_U32:
return ptr1.p_u32[idx] == ptr2.p_u32[idx];
default:
if (ctrl->is_int)
return ptr1.p_s32[idx] == ptr2.p_s32[idx];
@ -1242,6 +1264,9 @@ static void std_init(const struct v4l2_ctrl *ctrl, u32 idx,
case V4L2_CTRL_TYPE_U16:
ptr.p_u16[idx] = ctrl->default_value;
break;
case V4L2_CTRL_TYPE_U32:
ptr.p_u32[idx] = ctrl->default_value;
break;
default:
idx *= ctrl->elem_size;
memset(ptr.p + idx, 0, ctrl->elem_size);
@ -1289,6 +1314,9 @@ static void std_log(const struct v4l2_ctrl *ctrl)
case V4L2_CTRL_TYPE_U16:
pr_cont("%u", (unsigned)*ptr.p_u16);
break;
case V4L2_CTRL_TYPE_U32:
pr_cont("%u", (unsigned)*ptr.p_u32);
break;
default:
pr_cont("unknown type %d", ctrl->type);
break;
@ -1346,6 +1374,8 @@ static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx,
return ROUND_TO_RANGE(ptr.p_u8[idx], u8, ctrl);
case V4L2_CTRL_TYPE_U16:
return ROUND_TO_RANGE(ptr.p_u16[idx], u16, ctrl);
case V4L2_CTRL_TYPE_U32:
return ROUND_TO_RANGE(ptr.p_u32[idx], u32, ctrl);
case V4L2_CTRL_TYPE_BOOLEAN:
ptr.p_s32[idx] = !!ptr.p_s32[idx];
@ -1578,6 +1608,7 @@ static int check_range(enum v4l2_ctrl_type type,
/* fall through */
case V4L2_CTRL_TYPE_U8:
case V4L2_CTRL_TYPE_U16:
case V4L2_CTRL_TYPE_U32:
case V4L2_CTRL_TYPE_INTEGER:
case V4L2_CTRL_TYPE_INTEGER64:
if (step == 0 || min > max || def < min || def > max)
@ -1893,6 +1924,9 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
case V4L2_CTRL_TYPE_U16:
elem_size = sizeof(u16);
break;
case V4L2_CTRL_TYPE_U32:
elem_size = sizeof(u32);
break;
default:
if (type < V4L2_CTRL_COMPOUND_TYPES)
elem_size = sizeof(s32);
@ -3248,6 +3282,7 @@ int __v4l2_ctrl_modify_range(struct v4l2_ctrl *ctrl,
case V4L2_CTRL_TYPE_BITMASK:
case V4L2_CTRL_TYPE_U8:
case V4L2_CTRL_TYPE_U16:
case V4L2_CTRL_TYPE_U32:
if (ctrl->is_array)
return -EINVAL;
ret = check_range(ctrl->type, min, max, step, def);

2
include/media/v4l2-ctrls.h
View file

@ -41,6 +41,7 @@ struct poll_table_struct;
* @p_s64: Pointer to a 64-bit signed value.
* @p_u8: Pointer to a 8-bit unsigned value.
* @p_u16: Pointer to a 16-bit unsigned value.
* @p_u32: Pointer to a 32-bit unsigned value.
* @p_char: Pointer to a string.
* @p: Pointer to a compound value.
*/
@ -49,6 +50,7 @@ union v4l2_ctrl_ptr {
s64 *p_s64;
u8 *p_u8;
u16 *p_u16;
u32 *p_u32;
char *p_char;
void *p;
};

9
include/uapi/linux/v4l2-controls.h
View file

@ -757,6 +757,15 @@ enum v4l2_auto_focus_range {
#define V4L2_CID_RDS_TX_PTY (V4L2_CID_FM_TX_CLASS_BASE + 3)
#define V4L2_CID_RDS_TX_PS_NAME (V4L2_CID_FM_TX_CLASS_BASE + 5)
#define V4L2_CID_RDS_TX_RADIO_TEXT (V4L2_CID_FM_TX_CLASS_BASE + 6)
#define V4L2_CID_RDS_TX_MONO_STEREO (V4L2_CID_FM_TX_CLASS_BASE + 7)
#define V4L2_CID_RDS_TX_ARTIFICIAL_HEAD (V4L2_CID_FM_TX_CLASS_BASE + 8)
#define V4L2_CID_RDS_TX_COMPRESSED (V4L2_CID_FM_TX_CLASS_BASE + 9)
#define V4L2_CID_RDS_TX_DYNAMIC_PTY (V4L2_CID_FM_TX_CLASS_BASE + 10)
#define V4L2_CID_RDS_TX_TRAFFIC_ANNOUNCEMENT (V4L2_CID_FM_TX_CLASS_BASE + 11)
#define V4L2_CID_RDS_TX_TRAFFIC_PROGRAM (V4L2_CID_FM_TX_CLASS_BASE + 12)
#define V4L2_CID_RDS_TX_MUSIC_SPEECH (V4L2_CID_FM_TX_CLASS_BASE + 13)
#define V4L2_CID_RDS_TX_ALT_FREQS_ENABLE (V4L2_CID_FM_TX_CLASS_BASE + 14)
#define V4L2_CID_RDS_TX_ALT_FREQS (V4L2_CID_FM_TX_CLASS_BASE + 15)
#define V4L2_CID_AUDIO_LIMITER_ENABLED (V4L2_CID_FM_TX_CLASS_BASE + 64)
#define V4L2_CID_AUDIO_LIMITER_RELEASE_TIME (V4L2_CID_FM_TX_CLASS_BASE + 65)

2
include/uapi/linux/videodev2.h
View file

@ -1288,6 +1288,7 @@ struct v4l2_ext_control {
char *string;
__u8 *p_u8;
__u16 *p_u16;
__u32 *p_u32;
void *ptr;
};
} __attribute__ ((packed));
@ -1320,6 +1321,7 @@ enum v4l2_ctrl_type {
V4L2_CTRL_COMPOUND_TYPES = 0x0100,
V4L2_CTRL_TYPE_U8 = 0x0100,
V4L2_CTRL_TYPE_U16 = 0x0101,
V4L2_CTRL_TYPE_U32 = 0x0102,
};
/* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */