V4L/DVB (9830): upd64031a: convert to v4l2_subdev.

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

1 files changed, 113 insertions, 80 deletions

diff --git a/drivers/media/video/upd64031a.c b/drivers/media/video/upd64031a.c
index b4628874933b..7a609a3a6dbe 100644
--- a/drivers/media/video/upd64031a.c
+++ b/drivers/media/video/upd64031a.c
@@ -26,7 +26,7 @@
 #include <linux/kernel.h>
 #include <linux/i2c.h>
 #include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
 #include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv.h>
 #include <media/upd64031a.h>
@@ -62,6 +62,7 @@ enum {
 };
 
 struct upd64031a_state {
+        struct v4l2_subdev sd;
         u8 regs[TOT_REGS];
         u8 gr_mode;
         u8 direct_3dycs_connect;
@@ -69,6 +70,11 @@ struct upd64031a_state {
         u8 ext_vert_sync;
 };
 
+static inline struct upd64031a_state *to_state(struct v4l2_subdev *sd)
+{
+        return container_of(sd, struct upd64031a_state, sd);
+}
+
 static u8 upd64031a_init[] = {
         0x00, 0xb8, 0x48, 0xd2, 0xe6,
         0x03, 0x10, 0x0b, 0xaf, 0x7f,
@@ -78,8 +84,9 @@ static u8 upd64031a_init[] = {
 
 /* ------------------------------------------------------------------------ */
 
-static u8 upd64031a_read(struct i2c_client *client, u8 reg)
+static u8 upd64031a_read(struct v4l2_subdev *sd, u8 reg)
 {
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
         u8 buf[2];
 
         if (reg >= sizeof(buf))
@@ -90,106 +97,127 @@ static u8 upd64031a_read(struct i2c_client *client, u8 reg)
 
 /* ------------------------------------------------------------------------ */
 
-static void upd64031a_write(struct i2c_client *client, u8 reg, u8 val)
+static void upd64031a_write(struct v4l2_subdev *sd, u8 reg, u8 val)
 {
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
         u8 buf[2];
 
         buf[0] = reg;
         buf[1] = val;
-        v4l_dbg(1, debug, client, "write reg: %02X val: %02X\n", reg, val);
+        v4l2_dbg(1, debug, sd, "write reg: %02X val: %02X\n", reg, val);
         if (i2c_master_send(client, buf, 2) != 2)
-                v4l_err(client, "I/O error write 0x%02x/0x%02x\n", reg, val);
+                v4l2_err(sd, "I/O error write 0x%02x/0x%02x\n", reg, val);
 }
 
 /* ------------------------------------------------------------------------ */
 
 /* The input changed due to new input or channel changed */
-static void upd64031a_change(struct i2c_client *client)
+static int upd64031a_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq)
 {
-        struct upd64031a_state *state = i2c_get_clientdata(client);
+        struct upd64031a_state *state = to_state(sd);
         u8 reg = state->regs[R00];
 
-        v4l_dbg(1, debug, client, "changed input or channel\n");
-        upd64031a_write(client, R00, reg | 0x10);
-        upd64031a_write(client, R00, reg & ~0x10);
+        v4l2_dbg(1, debug, sd, "changed input or channel\n");
+        upd64031a_write(sd, R00, reg | 0x10);
+        upd64031a_write(sd, R00, reg & ~0x10);
+        return 0;
 }
 
 /* ------------------------------------------------------------------------ */
 
+static int upd64031a_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
+{
+        struct upd64031a_state *state = to_state(sd);
+        u8 r00, r05, r08;
+
+        state->gr_mode = (route->input & 3) << 6;
+        state->direct_3dycs_connect = (route->input & 0xc) << 4;
+        state->ext_comp_sync =
+                (route->input & UPD64031A_COMPOSITE_EXTERNAL) << 1;
+        state->ext_vert_sync =
+                (route->input & UPD64031A_VERTICAL_EXTERNAL) << 2;
+        r00 = (state->regs[R00] & ~GR_MODE_MASK) | state->gr_mode;
+        r05 = (state->regs[R00] & ~SYNC_CIRCUIT_MASK) |
+                state->ext_comp_sync | state->ext_vert_sync;
+        r08 = (state->regs[R08] & ~DIRECT_3DYCS_CONNECT_MASK) |
+                state->direct_3dycs_connect;
+        upd64031a_write(sd, R00, r00);
+        upd64031a_write(sd, R05, r05);
+        upd64031a_write(sd, R08, r08);
+        return upd64031a_s_frequency(sd, NULL);
+}
+
+static int upd64031a_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_UPD64031A, 0);
+}
+
+static int upd64031a_log_status(struct v4l2_subdev *sd)
+{
+        v4l2_info(sd, "Status: SA00=0x%02x SA01=0x%02x\n",
+                        upd64031a_read(sd, 0), upd64031a_read(sd, 1));
+        return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int upd64031a_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 = upd64031a_read(sd, reg->reg & 0xff);
+        return 0;
+}
+
+static int upd64031a_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;
+        upd64031a_write(sd, reg->reg & 0xff, reg->val & 0xff);
+        return 0;
+}
+#endif
+
 static int upd64031a_command(struct i2c_client *client, unsigned cmd, void *arg)
 {
-        struct upd64031a_state *state = i2c_get_clientdata(client);
-        struct v4l2_routing *route = arg;
-
-        switch (cmd) {
-        case VIDIOC_S_FREQUENCY:
-                upd64031a_change(client);
-                break;
-
-        case VIDIOC_INT_G_VIDEO_ROUTING:
-                route->input = (state->gr_mode >> 6) |
-                        (state->direct_3dycs_connect >> 4) |
-                        (state->ext_comp_sync >> 1) |
-                        (state->ext_vert_sync >> 2);
-                route->output = 0;
-                break;
-
-        case VIDIOC_INT_S_VIDEO_ROUTING:
-        {
-                u8 r00, r05, r08;
-
-                state->gr_mode = (route->input & 3) << 6;
-                state->direct_3dycs_connect = (route->input & 0xc) << 4;
-                state->ext_comp_sync =
-                        (route->input & UPD64031A_COMPOSITE_EXTERNAL) << 1;
-                state->ext_vert_sync =
-                        (route->input & UPD64031A_VERTICAL_EXTERNAL) << 2;
-                r00 = (state->regs[R00] & ~GR_MODE_MASK) | state->gr_mode;
-                r05 = (state->regs[R00] & ~SYNC_CIRCUIT_MASK) |
-                        state->ext_comp_sync | state->ext_vert_sync;
-                r08 = (state->regs[R08] & ~DIRECT_3DYCS_CONNECT_MASK) |
-                        state->direct_3dycs_connect;
-                upd64031a_write(client, R00, r00);
-                upd64031a_write(client, R05, r05);
-                upd64031a_write(client, R08, r08);
-                upd64031a_change(client);
-                break;
-        }
-
-        case VIDIOC_LOG_STATUS:
-                v4l_info(client, "Status: SA00=0x%02x SA01=0x%02x\n",
-                        upd64031a_read(client, 0), upd64031a_read(client, 1));
-                break;
+        return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
+/* ----------------------------------------------------------------------- */
 
+static const struct v4l2_subdev_core_ops upd64031a_core_ops = {
+        .log_status = upd64031a_log_status,
+        .g_chip_ident = upd64031a_g_chip_ident,
 #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 = upd64031a_read(client, reg->reg & 0xff);
-                        break;
-                }
-                upd64031a_write(client, reg->reg & 0xff, reg->val & 0xff);
-                break;
-        }
+        .g_register = upd64031a_g_register,
+        .s_register = upd64031a_s_register,
 #endif
+};
 
-        case VIDIOC_G_CHIP_IDENT:
-                return v4l2_chip_ident_i2c_client(client, arg,
-                                V4L2_IDENT_UPD64031A, 0);
+static const struct v4l2_subdev_tuner_ops upd64031a_tuner_ops = {
+        .s_frequency = upd64031a_s_frequency,
+};
 
-        default:
-                break;
-        }
-        return 0;
-}
+static const struct v4l2_subdev_video_ops upd64031a_video_ops = {
+        .s_routing = upd64031a_s_routing,
+};
+
+static const struct v4l2_subdev_ops upd64031a_ops = {
+        .core = &upd64031a_core_ops,
+        .tuner = &upd64031a_tuner_ops,
+        .video = &upd64031a_video_ops,
+};
 
 /* ------------------------------------------------------------------------ */
 
@@ -199,6 +227,7 @@ static int upd64031a_probe(struct i2c_client *client,
                            const struct i2c_device_id *id)
 {
         struct upd64031a_state *state;
+        struct v4l2_subdev *sd;
         int i;
 
         if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -210,19 +239,23 @@ static int upd64031a_probe(struct i2c_client *client,
         state = kmalloc(sizeof(struct upd64031a_state), GFP_KERNEL);
         if (state == NULL)
                 return -ENOMEM;
-        i2c_set_clientdata(client, state);
+        sd = &state->sd;
+        v4l2_i2c_subdev_init(sd, client, &upd64031a_ops);
         memcpy(state->regs, upd64031a_init, sizeof(state->regs));
         state->gr_mode = UPD64031A_GR_ON << 6;
         state->direct_3dycs_connect = UPD64031A_3DYCS_COMPOSITE << 4;
         state->ext_comp_sync = state->ext_vert_sync = 0;
         for (i = 0; i < TOT_REGS; i++)
-                upd64031a_write(client, i, state->regs[i]);
+                upd64031a_write(sd, i, state->regs[i]);
         return 0;
 }
 
 static int upd64031a_remove(struct i2c_client *client)
 {
-        kfree(i2c_get_clientdata(client));
+        struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+        v4l2_device_unregister_subdev(sd);
+        kfree(to_state(sd));
         return 0;
 }