V4L/DVB (9967): cs5345: convert to v4l2_subdev and fix broken s_ctrl.

Converted to v4l2_subdev. While doing that I also discovered a stray 'break'
that broke the S_CTRL handling. Fixed that as well.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/cs5345.c b/drivers/media/video/cs5345.c
index a662b15..70fcd0d 100644 (file)
--- a/drivers/media/video/cs5345.c
+++ b/drivers/media/video/cs5345.c
@@ -23,9 +23,9 @@
 #include <linux/kernel.h>
 #include <linux/i2c.h>
 #include <linux/videodev2.h>
-#include <media/v4l2-i2c-drv.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
 #include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
 
 MODULE_DESCRIPTION("i2c device driver for cs5345 Audio ADC");
 MODULE_AUTHOR("Hans Verkuil");
@@ -40,111 +40,143 @@ MODULE_PARM_DESC(debug, "Debugging messages, 0=Off (default), 1=On");
 
 /* ----------------------------------------------------------------------- */
 
-static inline int cs5345_write(struct i2c_client *client, u8 reg, u8 value)
+static inline int cs5345_write(struct v4l2_subdev *sd, u8 reg, u8 value)
 {
+       struct i2c_client *client = v4l2_get_subdevdata(sd);
+
        return i2c_smbus_write_byte_data(client, reg, value);
 }
 
-static inline int cs5345_read(struct i2c_client *client, u8 reg)
+static inline int cs5345_read(struct v4l2_subdev *sd, u8 reg)
 {
+       struct i2c_client *client = v4l2_get_subdevdata(sd);
+
        return i2c_smbus_read_byte_data(client, reg);
 }
 
-static int cs5345_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int cs5345_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
 {
-       struct v4l2_routing *route = arg;
-       struct v4l2_control *ctrl = arg;
-
-       switch (cmd) {
-       case VIDIOC_INT_G_AUDIO_ROUTING:
-               route->input = cs5345_read(client, 0x09) & 7;
-               route->input |= cs5345_read(client, 0x05) & 0x70;
-               route->output = 0;
-               break;
-
-       case VIDIOC_INT_S_AUDIO_ROUTING:
-               if ((route->input & 0xf) > 6) {
-                       v4l_err(client, "Invalid input %d.\n", route->input);
-                       return -EINVAL;
-               }
-               cs5345_write(client, 0x09, route->input & 0xf);
-               cs5345_write(client, 0x05, route->input & 0xf0);
-               break;
-
-       case VIDIOC_G_CTRL:
-               if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
-                       ctrl->value = (cs5345_read(client, 0x04) & 0x08) != 0;
-                       break;
-               }
-               if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
-                       return -EINVAL;
-               ctrl->value = cs5345_read(client, 0x07) & 0x3f;
-               if (ctrl->value >= 32)
-                       ctrl->value = ctrl->value - 64;
-               break;
-
-       case VIDIOC_S_CTRL:
-               break;
-               if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
-                       cs5345_write(client, 0x04, ctrl->value ? 0x80 : 0);
-                       break;
-               }
-               if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
-                       return -EINVAL;
-               if (ctrl->value > 24 || ctrl->value < -24)
-                       return -EINVAL;
-               cs5345_write(client, 0x07, ((u8)ctrl->value) & 0x3f);
-               cs5345_write(client, 0x08, ((u8)ctrl->value) & 0x3f);
-               break;
-
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-       case VIDIOC_DBG_G_REGISTER:
-       case VIDIOC_DBG_S_REGISTER:
-       {
-               struct v4l2_register *reg = arg;
-
-               if (!v4l2_chip_match_i2c_client(client,
-                                       reg->match_type, reg->match_chip))
-                       return -EINVAL;
-               if (!capable(CAP_SYS_ADMIN))
-                       return -EPERM;
-               if (cmd == VIDIOC_DBG_G_REGISTER)
-                       reg->val = cs5345_read(client, reg->reg & 0x1f);
-               else
-                       cs5345_write(client, reg->reg & 0x1f, reg->val & 0xff);
-               break;
+       if ((route->input & 0xf) > 6) {
+               v4l2_err(sd, "Invalid input %d.\n", route->input);
+               return -EINVAL;
        }
-#endif
+       cs5345_write(sd, 0x09, route->input & 0xf);
+       cs5345_write(sd, 0x05, route->input & 0xf0);
+       return 0;
+}
 
-       case VIDIOC_G_CHIP_IDENT:
-               return v4l2_chip_ident_i2c_client(client,
-                               arg, V4L2_IDENT_CS5345, 0);
-
-       case VIDIOC_LOG_STATUS:
-               {
-                       u8 v = cs5345_read(client, 0x09) & 7;
-                       u8 m = cs5345_read(client, 0x04);
-                       int vol = cs5345_read(client, 0x08) & 0x3f;
-
-                       v4l_info(client, "Input:  %d%s\n", v,
-                                     (m & 0x80) ? " (muted)" : "");
-                       if (vol >= 32)
-                               vol = vol - 64;
-                       v4l_info(client, "Volume: %d dB\n", vol);
-                       break;
-               }
-
-       default:
+static int cs5345_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+       if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
+               ctrl->value = (cs5345_read(sd, 0x04) & 0x08) != 0;
+               return 0;
+       }
+       if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
                return -EINVAL;
+       ctrl->value = cs5345_read(sd, 0x07) & 0x3f;
+       if (ctrl->value >= 32)
+               ctrl->value = ctrl->value - 64;
+       return 0;
+}
+
+static int cs5345_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+       if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
+               cs5345_write(sd, 0x04, ctrl->value ? 0x80 : 0);
+               return 0;
        }
+       if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
+               return -EINVAL;
+       if (ctrl->value > 24 || ctrl->value < -24)
+               return -EINVAL;
+       cs5345_write(sd, 0x07, ((u8)ctrl->value) & 0x3f);
+       cs5345_write(sd, 0x08, ((u8)ctrl->value) & 0x3f);
+       return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int cs5345_g_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
+{
+       struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+       if (!v4l2_chip_match_i2c_client(client,
+                               reg->match_type, reg->match_chip))
+               return -EINVAL;
+       if (!capable(CAP_SYS_ADMIN))
+               return -EPERM;
+       reg->val = cs5345_read(sd, reg->reg & 0x1f);
+       return 0;
+}
+
+static int cs5345_s_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
+{
+       struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+       if (!v4l2_chip_match_i2c_client(client,
+                               reg->match_type, reg->match_chip))
+               return -EINVAL;
+       if (!capable(CAP_SYS_ADMIN))
+               return -EPERM;
+       cs5345_write(sd, reg->reg & 0x1f, reg->val & 0xff);
        return 0;
 }
+#endif
+
+static int cs5345_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_chip_ident *chip)
+{
+       struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+       return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_CS5345, 0);
+}
+
+static int cs5345_log_status(struct v4l2_subdev *sd)
+{
+       u8 v = cs5345_read(sd, 0x09) & 7;
+       u8 m = cs5345_read(sd, 0x04);
+       int vol = cs5345_read(sd, 0x08) & 0x3f;
+
+       v4l2_info(sd, "Input:  %d%s\n", v,
+                       (m & 0x80) ? " (muted)" : "");
+       if (vol >= 32)
+               vol = vol - 64;
+       v4l2_info(sd, "Volume: %d dB\n", vol);
+       return 0;
+}
+
+static int cs5345_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+       return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops cs5345_core_ops = {
+       .log_status = cs5345_log_status,
+       .g_chip_ident = cs5345_g_chip_ident,
+       .g_ctrl = cs5345_g_ctrl,
+       .s_ctrl = cs5345_s_ctrl,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+       .g_register = cs5345_g_register,
+       .s_register = cs5345_s_register,
+#endif
+};
+
+static const struct v4l2_subdev_audio_ops cs5345_audio_ops = {
+       .s_routing = cs5345_s_routing,
+};
+
+static const struct v4l2_subdev_ops cs5345_ops = {
+       .core = &cs5345_core_ops,
+       .audio = &cs5345_audio_ops,
+};
 
 /* ----------------------------------------------------------------------- */
 
 static int cs5345_probe(struct i2c_client *client,
                        const struct i2c_device_id *id)
 {
+       struct v4l2_subdev *sd;
+
        /* Check if the adapter supports the needed features */
        if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
                return -EIO;
@@ -152,9 +184,25 @@ static int cs5345_probe(struct i2c_client *client,
        v4l_info(client, "chip found @ 0x%x (%s)\n",
                        client->addr << 1, client->adapter->name);
 
-       cs5345_write(client, 0x02, 0x00);
-       cs5345_write(client, 0x04, 0x01);
-       cs5345_write(client, 0x09, 0x01);
+       sd = kzalloc(sizeof(struct v4l2_subdev), GFP_KERNEL);
+       if (sd == NULL)
+               return -ENOMEM;
+       v4l2_i2c_subdev_init(sd, client, &cs5345_ops);
+
+       cs5345_write(sd, 0x02, 0x00);
+       cs5345_write(sd, 0x04, 0x01);
+       cs5345_write(sd, 0x09, 0x01);
+       return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int cs5345_remove(struct i2c_client *client)
+{
+       struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+       v4l2_device_unregister_subdev(sd);
+       kfree(sd);
        return 0;
 }
 
@@ -171,5 +219,6 @@ static struct v4l2_i2c_driver_data v4l2_i2c_data = {
        .driverid = I2C_DRIVERID_CS5345,
        .command = cs5345_command,
        .probe = cs5345_probe,
+       .remove = cs5345_remove,
        .id_table = cs5345_id,
 };