[media] radio-si4713: convert to the control framework

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Tested-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/radio/radio-si4713.c

@@ -76,61 +76,6 @@ static int radio_si4713_querycap(struct file *file, void *priv,
 	return 0;
 }
 
-/* radio_si4713_queryctrl - enumerate control items */
-static int radio_si4713_queryctrl(struct file *file, void *priv,
-				  struct v4l2_queryctrl *qc)
-{
-	/* Must be sorted from low to high control ID! */
-	static const u32 user_ctrls[] = {
-		V4L2_CID_USER_CLASS,
-		V4L2_CID_AUDIO_MUTE,
-		0
-	};
-
-	/* Must be sorted from low to high control ID! */
-	static const u32 fmtx_ctrls[] = {
-		V4L2_CID_FM_TX_CLASS,
-		V4L2_CID_RDS_TX_DEVIATION,
-		V4L2_CID_RDS_TX_PI,
-		V4L2_CID_RDS_TX_PTY,
-		V4L2_CID_RDS_TX_PS_NAME,
-		V4L2_CID_RDS_TX_RADIO_TEXT,
-		V4L2_CID_AUDIO_LIMITER_ENABLED,
-		V4L2_CID_AUDIO_LIMITER_RELEASE_TIME,
-		V4L2_CID_AUDIO_LIMITER_DEVIATION,
-		V4L2_CID_AUDIO_COMPRESSION_ENABLED,
-		V4L2_CID_AUDIO_COMPRESSION_GAIN,
-		V4L2_CID_AUDIO_COMPRESSION_THRESHOLD,
-		V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME,
-		V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME,
-		V4L2_CID_PILOT_TONE_ENABLED,
-		V4L2_CID_PILOT_TONE_DEVIATION,
-		V4L2_CID_PILOT_TONE_FREQUENCY,
-		V4L2_CID_TUNE_PREEMPHASIS,
-		V4L2_CID_TUNE_POWER_LEVEL,
-		V4L2_CID_TUNE_ANTENNA_CAPACITOR,
-		0
-	};
-	static const u32 *ctrl_classes[] = {
-		user_ctrls,
-		fmtx_ctrls,
-		NULL
-	};
-	struct radio_si4713_device *rsdev;
-
-	rsdev = video_get_drvdata(video_devdata(file));
-
-	qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
-	if (qc->id == 0)
-		return -EINVAL;
-
-	if (qc->id == V4L2_CID_USER_CLASS || qc->id == V4L2_CID_FM_TX_CLASS)
-		return v4l2_ctrl_query_fill(qc, 0, 0, 0, 0);
-
-	return v4l2_device_call_until_err(&rsdev->v4l2_dev, 0, core,
-					  queryctrl, qc);
-}
-
 /*
  * v4l2 ioctl call backs.
  * we are just a wrapper for v4l2_sub_devs.
@@ -140,34 +85,6 @@ static inline struct v4l2_device *get_v4l2_dev(struct file *file)
 	return &((struct radio_si4713_device *)video_drvdata(file))->v4l2_dev;
 }
 
-static int radio_si4713_g_ext_ctrls(struct file *file, void *p,
-				    struct v4l2_ext_controls *vecs)
-{
-	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core,
-					  g_ext_ctrls, vecs);
-}
-
-static int radio_si4713_s_ext_ctrls(struct file *file, void *p,
-				    struct v4l2_ext_controls *vecs)
-{
-	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core,
-					  s_ext_ctrls, vecs);
-}
-
-static int radio_si4713_g_ctrl(struct file *file, void *p,
-			       struct v4l2_control *vc)
-{
-	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core,
-					  g_ctrl, vc);
-}
-
-static int radio_si4713_s_ctrl(struct file *file, void *p,
-			       struct v4l2_control *vc)
-{
-	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core,
-					  s_ctrl, vc);
-}
-
 static int radio_si4713_g_modulator(struct file *file, void *p,
 				    struct v4l2_modulator *vm)
 {
@@ -205,11 +122,6 @@ static long radio_si4713_default(struct file *file, void *p,
 
 static struct v4l2_ioctl_ops radio_si4713_ioctl_ops = {
 	.vidioc_querycap	= radio_si4713_querycap,
-	.vidioc_queryctrl	= radio_si4713_queryctrl,
-	.vidioc_g_ext_ctrls	= radio_si4713_g_ext_ctrls,
-	.vidioc_s_ext_ctrls	= radio_si4713_s_ext_ctrls,
-	.vidioc_g_ctrl		= radio_si4713_g_ctrl,
-	.vidioc_s_ctrl		= radio_si4713_s_ctrl,
 	.vidioc_g_modulator	= radio_si4713_g_modulator,
 	.vidioc_s_modulator	= radio_si4713_s_modulator,
 	.vidioc_g_frequency	= radio_si4713_g_frequency,
@@ -274,6 +186,7 @@ static int radio_si4713_pdriver_probe(struct platform_device *pdev)
 
 	rsdev->radio_dev = radio_si4713_vdev_template;
 	rsdev->radio_dev.v4l2_dev = &rsdev->v4l2_dev;
+	rsdev->radio_dev.ctrl_handler = sd->ctrl_handler;
 	/* Serialize all access to the si4713 */
 	rsdev->radio_dev.lock = &rsdev->lock;
 	video_set_drvdata(&rsdev->radio_dev, rsdev);

drivers/media/radio/si4713-i2c.h

@@ -16,6 +16,7 @@
 #define SI4713_I2C_H
 
 #include <media/v4l2-subdev.h>
+#include <media/v4l2-ctrls.h>
 #include <media/si4713.h>
 
 #define SI4713_PRODUCT_NUMBER		0x0D
@@ -160,56 +161,33 @@
 #define POWER_UP			0x01
 #define POWER_DOWN			0x00
 
-struct rds_info {
-	u32 pi;
 #define MAX_RDS_PTY			31
-	u32 pty;
 #define MAX_RDS_DEVIATION		90000
-	u32 deviation;
+
 /*
  * PSNAME is known to be defined as 8 character sized (RDS Spec).
  * However, there is receivers which scroll PSNAME 8xN sized.
  */
 #define MAX_RDS_PS_NAME			96
-	u8 ps_name[MAX_RDS_PS_NAME + 1];
+
 /*
  * MAX_RDS_RADIO_TEXT is known to be defined as 32 (2A group) or 64 (2B group)
  * character sized (RDS Spec).
  * However, there is receivers which scroll them as well.
  */
 #define MAX_RDS_RADIO_TEXT		384
-	u8 radio_text[MAX_RDS_RADIO_TEXT + 1];
-	u32 enabled;
-};
 
-struct limiter_info {
 #define MAX_LIMITER_RELEASE_TIME	102390
-	u32 release_time;
 #define MAX_LIMITER_DEVIATION		90000
-	u32 deviation;
-	u32 enabled;
-};
 
-struct pilot_info {
 #define MAX_PILOT_DEVIATION		90000
-	u32 deviation;
 #define MAX_PILOT_FREQUENCY		19000
-	u32 frequency;
-	u32 enabled;
-};
 
-struct acomp_info {
 #define MAX_ACOMP_RELEASE_TIME		1000000
-	u32 release_time;
 #define MAX_ACOMP_ATTACK_TIME		5000
-	u32 attack_time;
 #define MAX_ACOMP_THRESHOLD		0
 #define MIN_ACOMP_THRESHOLD		(-40)
-	s32 threshold;
 #define MAX_ACOMP_GAIN			20
-	u32 gain;
-	u32 enabled;
-};
 
 #define SI4713_NUM_SUPPLIES		2
 
@@ -219,20 +197,41 @@ struct acomp_info {
 struct si4713_device {
 	/* v4l2_subdev and i2c reference (v4l2_subdev priv data) */
 	struct v4l2_subdev sd;
+	struct v4l2_ctrl_handler ctrl_handler;
 	/* private data structures */
+	struct { /* si4713 control cluster */
+		/* This is one big cluster since the mute control
+		 * powers off the device and after unmuting again all
+		 * controls need to be set at once. The only way of doing
+		 * that is by making it one big cluster. */
+		struct v4l2_ctrl *mute;
+		struct v4l2_ctrl *rds_ps_name;
+		struct v4l2_ctrl *rds_radio_text;
+		struct v4l2_ctrl *rds_pi;
+		struct v4l2_ctrl *rds_deviation;
+		struct v4l2_ctrl *rds_pty;
+		struct v4l2_ctrl *compression_enabled;
+		struct v4l2_ctrl *compression_threshold;
+		struct v4l2_ctrl *compression_gain;
+		struct v4l2_ctrl *compression_attack_time;
+		struct v4l2_ctrl *compression_release_time;
+		struct v4l2_ctrl *pilot_tone_enabled;
+		struct v4l2_ctrl *pilot_tone_freq;
+		struct v4l2_ctrl *pilot_tone_deviation;
+		struct v4l2_ctrl *limiter_enabled;
+		struct v4l2_ctrl *limiter_deviation;
+		struct v4l2_ctrl *limiter_release_time;
+		struct v4l2_ctrl *tune_preemphasis;
+		struct v4l2_ctrl *tune_pwr_level;
+		struct v4l2_ctrl *tune_ant_cap;
+	};
 	struct completion work;
-	struct rds_info rds_info;
-	struct limiter_info limiter_info;
-	struct pilot_info pilot_info;
-	struct acomp_info acomp_info;
 	struct regulator_bulk_data supplies[SI4713_NUM_SUPPLIES];
 	int gpio_reset;
+	u32 power_state;
+	u32 rds_enabled;
 	u32 frequency;
 	u32 preemphasis;
-	u32 mute;
-	u32 power_level;
-	u32 power_state;
-	u32 antenna_capacitor;
 	u32 stereo;
 	u32 tune_rnl;
 };