*
* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
*
- * Based on a tvaudio patch from Kazuhiko Kawakami <kazz-0@mail.goo.ne.jp>
+ * Based on a tvaudio patch from Takahiro Adachi <tadachi@tadachi-net.com>
+ * and Kazuhiko Kawakami <kazz-0@mail.goo.ne.jp>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include <linux/module.h>
#include <linux/types.h>
+#include <linux/slab.h>
#include <linux/ioctl.h>
#include <asm/uaccess.h>
#include <linux/i2c.h>
#include <linux/i2c-id.h>
-#include <linux/videodev.h>
-#include <media/v4l2-common.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
MODULE_DESCRIPTION("vp27smpx driver");
MODULE_AUTHOR("Hans Verkuil");
MODULE_LICENSE("GPL");
-static unsigned short normal_i2c[] = { 0xb6 >> 1, I2C_CLIENT_END };
-
-
-I2C_CLIENT_INSMOD;
/* ----------------------------------------------------------------------- */
struct vp27smpx_state {
+ struct v4l2_subdev sd;
int radio;
u32 audmode;
};
-static void vp27smpx_set_audmode(struct i2c_client *client, u32 audmode)
+static inline struct vp27smpx_state *to_state(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct vp27smpx_state, sd);
+}
+
+static void vp27smpx_set_audmode(struct v4l2_subdev *sd, u32 audmode)
{
- struct vp27smpx_state *state = i2c_get_clientdata(client);
+ struct vp27smpx_state *state = to_state(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
u8 data[3] = { 0x00, 0x00, 0x04 };
switch (audmode) {
- case V4L2_TUNER_MODE_MONO:
- case V4L2_TUNER_MODE_LANG1:
- break;
- case V4L2_TUNER_MODE_STEREO:
- case V4L2_TUNER_MODE_LANG1_LANG2:
- data[1] = 0x01;
- break;
- case V4L2_TUNER_MODE_LANG2:
- data[1] = 0x02;
- break;
+ case V4L2_TUNER_MODE_MONO:
+ case V4L2_TUNER_MODE_LANG1:
+ break;
+ case V4L2_TUNER_MODE_STEREO:
+ case V4L2_TUNER_MODE_LANG1_LANG2:
+ data[1] = 0x01;
+ break;
+ case V4L2_TUNER_MODE_LANG2:
+ data[1] = 0x02;
+ break;
}
- if (i2c_master_send(client, data, sizeof(data)) != sizeof(data)) {
- v4l_err(client, "%s: I/O error setting audmode\n", client->name);
- }
- else {
+ if (i2c_master_send(client, data, sizeof(data)) != sizeof(data))
+ v4l2_err(sd, "I/O error setting audmode\n");
+ else
state->audmode = audmode;
- }
}
-static int vp27smpx_command(struct i2c_client *client, unsigned int cmd,
- void *arg)
+static int vp27smpx_s_radio(struct v4l2_subdev *sd)
{
- struct vp27smpx_state *state = i2c_get_clientdata(client);
- struct v4l2_tuner *vt = arg;
+ struct vp27smpx_state *state = to_state(sd);
- switch (cmd) {
- case AUDC_SET_RADIO:
- state->radio = 1;
- break;
+ state->radio = 1;
+ return 0;
+}
- case VIDIOC_S_STD:
- state->radio = 0;
- break;
+static int vp27smpx_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
+{
+ struct vp27smpx_state *state = to_state(sd);
- case VIDIOC_S_TUNER:
- if (!state->radio)
- vp27smpx_set_audmode(client, vt->audmode);
- break;
+ state->radio = 0;
+ return 0;
+}
- case VIDIOC_G_TUNER:
- if (state->radio)
- break;
- vt->audmode = state->audmode;
- vt->capability = V4L2_TUNER_CAP_STEREO |
- V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
- vt->rxsubchans = V4L2_TUNER_SUB_MONO;
- break;
+static int vp27smpx_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
+{
+ struct vp27smpx_state *state = to_state(sd);
- case VIDIOC_G_CHIP_IDENT:
- return v4l2_chip_ident_i2c_client(client, arg, V4L2_IDENT_VP27SMPX, 0);
+ if (!state->radio)
+ vp27smpx_set_audmode(sd, vt->audmode);
+ return 0;
+}
- case VIDIOC_LOG_STATUS:
- v4l_info(client, "Audio Mode: %u%s\n", state->audmode,
- state->radio ? " (Radio)" : "");
- break;
+static int vp27smpx_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
+{
+ struct vp27smpx_state *state = to_state(sd);
- default:
- return -EINVAL;
- }
+ if (state->radio)
+ return 0;
+ vt->audmode = state->audmode;
+ vt->capability = V4L2_TUNER_CAP_STEREO |
+ V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
+ vt->rxsubchans = V4L2_TUNER_SUB_MONO;
return 0;
}
+static int vp27smpx_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_VP27SMPX, 0);
+}
+
+static int vp27smpx_log_status(struct v4l2_subdev *sd)
+{
+ struct vp27smpx_state *state = to_state(sd);
+
+ v4l2_info(sd, "Audio Mode: %u%s\n", state->audmode,
+ state->radio ? " (Radio)" : "");
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops vp27smpx_core_ops = {
+ .log_status = vp27smpx_log_status,
+ .g_chip_ident = vp27smpx_g_chip_ident,
+ .s_std = vp27smpx_s_std,
+};
+
+static const struct v4l2_subdev_tuner_ops vp27smpx_tuner_ops = {
+ .s_radio = vp27smpx_s_radio,
+ .s_tuner = vp27smpx_s_tuner,
+ .g_tuner = vp27smpx_g_tuner,
+};
+
+static const struct v4l2_subdev_ops vp27smpx_ops = {
+ .core = &vp27smpx_core_ops,
+ .tuner = &vp27smpx_tuner_ops,
+};
+
/* ----------------------------------------------------------------------- */
/* i2c implementation */
* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
*/
-static struct i2c_driver i2c_driver;
-
-static int vp27smpx_attach(struct i2c_adapter *adapter, int address, int kind)
+static int vp27smpx_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
- struct i2c_client *client;
struct vp27smpx_state *state;
+ struct v4l2_subdev *sd;
/* Check if the adapter supports the needed features */
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return 0;
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -EIO;
- client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
- if (client == 0)
- return -ENOMEM;
-
- client->addr = address;
- client->adapter = adapter;
- client->driver = &i2c_driver;
- snprintf(client->name, sizeof(client->name) - 1, "vp27smpx");
-
- v4l_info(client, "chip found @ 0x%x (%s)\n", address << 1, adapter->name);
+ v4l_info(client, "chip found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
state = kzalloc(sizeof(struct vp27smpx_state), GFP_KERNEL);
- if (state == NULL) {
- kfree(client);
+ if (state == NULL)
return -ENOMEM;
- }
+ sd = &state->sd;
+ v4l2_i2c_subdev_init(sd, client, &vp27smpx_ops);
state->audmode = V4L2_TUNER_MODE_STEREO;
- i2c_set_clientdata(client, state);
/* initialize vp27smpx */
- vp27smpx_set_audmode(client, state->audmode);
- i2c_attach_client(client);
-
- return 0;
-}
-
-static int vp27smpx_probe(struct i2c_adapter *adapter)
-{
- if (adapter->class & I2C_CLASS_TV_ANALOG)
- return i2c_probe(adapter, &addr_data, vp27smpx_attach);
+ vp27smpx_set_audmode(sd, state->audmode);
return 0;
}
-static int vp27smpx_detach(struct i2c_client *client)
+static int vp27smpx_remove(struct i2c_client *client)
{
- struct vp27smpx_state *state = i2c_get_clientdata(client);
- int err;
-
- err = i2c_detach_client(client);
- if (err) {
- return err;
- }
- kfree(state);
- kfree(client);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ v4l2_device_unregister_subdev(sd);
+ kfree(to_state(sd));
return 0;
}
/* ----------------------------------------------------------------------- */
-/* i2c implementation */
-static struct i2c_driver i2c_driver = {
- .driver = {
- .name = "vp27smpx",
- },
- .id = I2C_DRIVERID_VP27SMPX,
- .attach_adapter = vp27smpx_probe,
- .detach_client = vp27smpx_detach,
- .command = vp27smpx_command,
+static const struct i2c_device_id vp27smpx_id[] = {
+ { "vp27smpx", 0 },
+ { }
};
+MODULE_DEVICE_TABLE(i2c, vp27smpx_id);
-
-static int __init vp27smpx_init_module(void)
-{
- return i2c_add_driver(&i2c_driver);
-}
-
-static void __exit vp27smpx_cleanup_module(void)
-{
- i2c_del_driver(&i2c_driver);
-}
-
-module_init(vp27smpx_init_module);
-module_exit(vp27smpx_cleanup_module);
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "vp27smpx",
+ .probe = vp27smpx_probe,
+ .remove = vp27smpx_remove,
+ .id_table = vp27smpx_id,
+};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff