[media] mxb/saa7146: first round of cleanups

Convert to the control framework, fix the easy v4l2-compliance failures.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 85 insertions, 88 deletions

diff --git a/drivers/media/video/mxb.c b/drivers/media/video/mxb.c
index ca3f70f0bad..2bed92ff947 100644
--- a/drivers/media/video/mxb.c
+++ b/drivers/media/video/mxb.c
@@ -64,8 +64,8 @@ enum { TUNER, AUX1, AUX3, AUX3_YC };
 static struct v4l2_input mxb_inputs[MXB_INPUTS] = {
         { TUNER,        "Tuner",                V4L2_INPUT_TYPE_TUNER,  1, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
         { AUX1,         "AUX1",                 V4L2_INPUT_TYPE_CAMERA, 2, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
-        { AUX3,         "AUX3 Composite",       V4L2_INPUT_TYPE_CAMERA, 4, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
-        { AUX3_YC,      "AUX3 S-Video",         V4L2_INPUT_TYPE_CAMERA, 4, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
+        { AUX3,         "AUX3 Composite",       V4L2_INPUT_TYPE_CAMERA, 8, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
+        { AUX3_YC,      "AUX3 S-Video",         V4L2_INPUT_TYPE_CAMERA, 8, 0, V4L2_STD_PAL_BG|V4L2_STD_NTSC_M, 0, V4L2_IN_CAP_STD },
 };
 
 /* this array holds the information, which port of the saa7146 each
@@ -90,6 +90,36 @@ struct mxb_routing {
         u32 output;
 };
 
+/* these are the available audio sources, which can switched
+   to the line- and cd-output individually */
+static struct v4l2_audio mxb_audios[MXB_AUDIOS] = {
+            {
+                .index  = 0,
+                .name   = "Tuner",
+                .capability = V4L2_AUDCAP_STEREO,
+        } , {
+                .index  = 1,
+                .name   = "AUX1",
+                .capability = V4L2_AUDCAP_STEREO,
+        } , {
+                .index  = 2,
+                .name   = "AUX2",
+                .capability = V4L2_AUDCAP_STEREO,
+        } , {
+                .index  = 3,
+                .name   = "AUX3",
+                .capability = V4L2_AUDCAP_STEREO,
+        } , {
+                .index  = 4,
+                .name   = "Radio (X9)",
+                .capability = V4L2_AUDCAP_STEREO,
+        } , {
+                .index  = 5,
+                .name   = "CD-ROM (X10)",
+                .capability = V4L2_AUDCAP_STEREO,
+        }
+};
+
 /* These are the necessary input-output-pins for bringing one audio source
    (see above) to the CD-output. Note that gain is set to 0 in this table. */
 static struct mxb_routing TEA6420_cd[MXB_AUDIOS + 1][2] = {
@@ -114,11 +144,6 @@ static struct mxb_routing TEA6420_line[MXB_AUDIOS + 1][2] = {
         { { 6, 3 }, { 6, 2 } }  /* Mute */
 };
 
-#define MAXCONTROLS     1
-static struct v4l2_queryctrl mxb_controls[] = {
-        { V4L2_CID_AUDIO_MUTE, V4L2_CTRL_TYPE_BOOLEAN, "Mute", 0, 1, 1, 0, 0 },
-};
-
 struct mxb
 {
         struct video_device     *video_dev;
@@ -168,16 +193,45 @@ static inline void tea6420_route_line(struct mxb *mxb, int idx)
 
 static struct saa7146_extension extension;
 
+static int mxb_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+        struct saa7146_dev *dev = container_of(ctrl->handler,
+                                struct saa7146_dev, ctrl_handler);
+        struct mxb *mxb = dev->ext_priv;
+
+        switch (ctrl->id) {
+        case V4L2_CID_AUDIO_MUTE:
+                mxb->cur_mute = ctrl->val;
+                /* switch the audio-source */
+                tea6420_route_line(mxb, ctrl->val ? 6 :
+                                video_audio_connect[mxb->cur_input]);
+                break;
+        default:
+                return -EINVAL;
+        }
+        return 0;
+}
+
+static const struct v4l2_ctrl_ops mxb_ctrl_ops = {
+        .s_ctrl = mxb_s_ctrl,
+};
+
 static int mxb_probe(struct saa7146_dev *dev)
 {
+        struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
         struct mxb *mxb = NULL;
 
+        v4l2_ctrl_new_std(hdl, &mxb_ctrl_ops,
+                        V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
+        if (hdl->error)
+                return hdl->error;
         mxb = kzalloc(sizeof(struct mxb), GFP_KERNEL);
         if (mxb == NULL) {
                 DEB_D("not enough kernel memory\n");
                 return -ENOMEM;
         }
 
+
         snprintf(mxb->i2c_adapter.name, sizeof(mxb->i2c_adapter.name), "mxb%d", mxb_num);
 
         saa7146_i2c_adapter_prepare(dev, &mxb->i2c_adapter, SAA7146_I2C_BUS_BIT_RATE_480);
@@ -385,69 +439,6 @@ void mxb_irq_bh(struct saa7146_dev* dev, u32* irq_mask)
 }
 */
 
-static int vidioc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qc)
-{
-        struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
-        int i;
-
-        for (i = MAXCONTROLS - 1; i >= 0; i--) {
-                if (mxb_controls[i].id == qc->id) {
-                        *qc = mxb_controls[i];
-                        DEB_D("VIDIOC_QUERYCTRL %d\n", qc->id);
-                        return 0;
-                }
-        }
-        return dev->ext_vv_data->core_ops->vidioc_queryctrl(file, fh, qc);
-}
-
-static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *vc)
-{
-        struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
-        struct mxb *mxb = (struct mxb *)dev->ext_priv;
-        int i;
-
-        for (i = MAXCONTROLS - 1; i >= 0; i--) {
-                if (mxb_controls[i].id == vc->id)
-                        break;
-        }
-
-        if (i < 0)
-                return dev->ext_vv_data->core_ops->vidioc_g_ctrl(file, fh, vc);
-
-        if (vc->id == V4L2_CID_AUDIO_MUTE) {
-                vc->value = mxb->cur_mute;
-                DEB_D("VIDIOC_G_CTRL V4L2_CID_AUDIO_MUTE:%d\n", vc->value);
-                return 0;
-        }
-
-        DEB_EE("VIDIOC_G_CTRL V4L2_CID_AUDIO_MUTE:%d\n", vc->value);
-        return 0;
-}
-
-static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *vc)
-{
-        struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
-        struct mxb *mxb = (struct mxb *)dev->ext_priv;
-        int i = 0;
-
-        for (i = MAXCONTROLS - 1; i >= 0; i--) {
-                if (mxb_controls[i].id == vc->id)
-                        break;
-        }
-
-        if (i < 0)
-                return dev->ext_vv_data->core_ops->vidioc_s_ctrl(file, fh, vc);
-
-        if (vc->id == V4L2_CID_AUDIO_MUTE) {
-                mxb->cur_mute = vc->value;
-                /* switch the audio-source */
-                tea6420_route_line(mxb, vc->value ? 6 :
-                                video_audio_connect[mxb->cur_input]);
-                DEB_EE("VIDIOC_S_CTRL, V4L2_CID_AUDIO_MUTE: %d\n", vc->value);
-        }
-        return 0;
-}
-
 static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
 {
         DEB_EE("VIDIOC_ENUMINPUT %d\n", i->index);
@@ -568,12 +559,8 @@ static int vidioc_g_frequency(struct file *file, void *fh, struct v4l2_frequency
         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
         struct mxb *mxb = (struct mxb *)dev->ext_priv;
 
-        if (mxb->cur_input) {
-                DEB_D("VIDIOC_G_FREQ: channel %d does not have a tuner!\n",
-                      mxb->cur_input);
+        if (f->tuner)
                 return -EINVAL;
-        }
-
         *f = mxb->cur_freq;
 
         DEB_EE("VIDIOC_G_FREQ: freq:0x%08x\n", mxb->cur_freq.frequency);
@@ -592,17 +579,16 @@ static int vidioc_s_frequency(struct file *file, void *fh, struct v4l2_frequency
         if (V4L2_TUNER_ANALOG_TV != f->type)
                 return -EINVAL;
 
-        if (mxb->cur_input) {
-                DEB_D("VIDIOC_S_FREQ: channel %d does not have a tuner!\n",
-                      mxb->cur_input);
-                return -EINVAL;
-        }
-
-        mxb->cur_freq = *f;
         DEB_EE("VIDIOC_S_FREQUENCY: freq:0x%08x\n", mxb->cur_freq.frequency);
 
         /* tune in desired frequency */
-        tuner_call(mxb, tuner, s_frequency, &mxb->cur_freq);
+        tuner_call(mxb, tuner, s_frequency, f);
+        /* let the tuner subdev clamp the frequency to the tuner range */
+        tuner_call(mxb, tuner, g_frequency, f);
+        mxb->cur_freq = *f;
+
+        if (mxb->cur_input)
+                return 0;
 
         /* hack: changing the frequency should invalidate the vbi-counter (=> alevt) */
         spin_lock(&dev->slock);
@@ -612,6 +598,14 @@ static int vidioc_s_frequency(struct file *file, void *fh, struct v4l2_frequency
         return 0;
 }
 
+static int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *a)
+{
+        if (a->index >= MXB_AUDIOS)
+                return -EINVAL;
+        *a = mxb_audios[a->index];
+        return 0;
+}
+
 static int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a)
 {
         struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
@@ -629,8 +623,13 @@ static int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a)
 
 static int vidioc_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
 {
+        struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
+        struct mxb *mxb = (struct mxb *)dev->ext_priv;
+
         DEB_D("VIDIOC_S_AUDIO %d\n", a->index);
-        return 0;
+        if (mxb_inputs[mxb->cur_input].audioset & (1 << a->index))
+                return 0;
+        return -EINVAL;
 }
 
 #ifdef CONFIG_VIDEO_ADV_DEBUG
@@ -709,9 +708,6 @@ static int mxb_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data
         }
         mxb = (struct mxb *)dev->ext_priv;
 
-        vv_data.ops.vidioc_queryctrl = vidioc_queryctrl;
-        vv_data.ops.vidioc_g_ctrl = vidioc_g_ctrl;
-        vv_data.ops.vidioc_s_ctrl = vidioc_s_ctrl;
         vv_data.ops.vidioc_enum_input = vidioc_enum_input;
         vv_data.ops.vidioc_g_input = vidioc_g_input;
         vv_data.ops.vidioc_s_input = vidioc_s_input;
@@ -719,6 +715,7 @@ static int mxb_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data
         vv_data.ops.vidioc_s_tuner = vidioc_s_tuner;
         vv_data.ops.vidioc_g_frequency = vidioc_g_frequency;
         vv_data.ops.vidioc_s_frequency = vidioc_s_frequency;
+        vv_data.ops.vidioc_enumaudio = vidioc_enumaudio;
         vv_data.ops.vidioc_g_audio = vidioc_g_audio;
         vv_data.ops.vidioc_s_audio = vidioc_s_audio;
 #ifdef CONFIG_VIDEO_ADV_DEBUG
@@ -836,7 +833,7 @@ MODULE_DEVICE_TABLE(pci, pci_tbl);
 
 static struct saa7146_ext_vv vv_data = {
         .inputs         = MXB_INPUTS,
-        .capabilities   = V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE,
+        .capabilities   = V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_AUDIO,
         .stds           = &standard[0],
         .num_stds       = sizeof(standard)/sizeof(struct saa7146_standard),
         .std_callback   = &std_callback,