*/
#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/signal.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <linux/sched.h>
#include <linux/types.h>
-#include <linux/i2c.h>
-
-#include <linux/videodev.h>
+#include <linux/ioctl.h>
#include <asm/uaccess.h>
-
-#include <linux/video_encoder.h>
-
+#include <linux/i2c.h>
+#include <linux/i2c-id.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
+
+MODULE_DESCRIPTION("Brooktree-866 video encoder driver");
+MODULE_AUTHOR("Mike Bernson & Dave Perks");
MODULE_LICENSE("GPL");
-#define BT866_DEVNAME "bt866"
-#define I2C_BT866 0x88
+static int debug;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0-1)");
-MODULE_LICENSE("GPL");
-
-#define DEBUG(x) /* Debug driver */
/* ----------------------------------------------------------------------- */
struct bt866 {
- struct i2c_client *i2c;
- int addr;
- unsigned char reg[256];
-
- int norm;
- int enable;
- int bright;
- int contrast;
- int hue;
- int sat;
+ struct v4l2_subdev sd;
+ u8 reg[256];
};
-static int bt866_write(struct bt866 *dev,
- unsigned char subaddr, unsigned char data);
-
-static int bt866_do_command(struct bt866 *encoder,
- unsigned int cmd, void *arg)
+static inline struct bt866 *to_bt866(struct v4l2_subdev *sd)
{
- switch (cmd) {
- case ENCODER_GET_CAPABILITIES:
- {
- struct video_encoder_capability *cap = arg;
-
- DEBUG(printk
- (KERN_INFO "%s: get capabilities\n",
- encoder->i2c->name));
-
- cap->flags
- = VIDEO_ENCODER_PAL
- | VIDEO_ENCODER_NTSC
- | VIDEO_ENCODER_CCIR;
- cap->inputs = 2;
- cap->outputs = 1;
- }
- break;
-
- case ENCODER_SET_NORM:
- {
- int *iarg = arg;
-
- DEBUG(printk(KERN_INFO "%s: set norm %d\n",
- encoder->i2c->name, *iarg));
-
- switch (*iarg) {
-
- case VIDEO_MODE_NTSC:
- break;
-
- case VIDEO_MODE_PAL:
- break;
-
- default:
- return -EINVAL;
-
- }
- encoder->norm = *iarg;
- }
- break;
-
- case ENCODER_SET_INPUT:
- {
- int *iarg = arg;
- static const __u8 init[] = {
- 0xc8, 0xcc, /* CRSCALE */
- 0xca, 0x91, /* CBSCALE */
- 0xcc, 0x24, /* YC16 | OSDNUM */
- 0xda, 0x00, /* */
- 0xdc, 0x24, /* SETMODE | PAL */
- 0xde, 0x02, /* EACTIVE */
-
- /* overlay colors */
- 0x70, 0xEB, 0x90, 0x80, 0xB0, 0x80, /* white */
- 0x72, 0xA2, 0x92, 0x8E, 0xB2, 0x2C, /* yellow */
- 0x74, 0x83, 0x94, 0x2C, 0xB4, 0x9C, /* cyan */
- 0x76, 0x70, 0x96, 0x3A, 0xB6, 0x48, /* green */
- 0x78, 0x54, 0x98, 0xC6, 0xB8, 0xB8, /* magenta */
- 0x7A, 0x41, 0x9A, 0xD4, 0xBA, 0x64, /* red */
- 0x7C, 0x23, 0x9C, 0x72, 0xBC, 0xD4, /* blue */
- 0x7E, 0x10, 0x9E, 0x80, 0xBE, 0x80, /* black */
-
- 0x60, 0xEB, 0x80, 0x80, 0xc0, 0x80, /* white */
- 0x62, 0xA2, 0x82, 0x8E, 0xc2, 0x2C, /* yellow */
- 0x64, 0x83, 0x84, 0x2C, 0xc4, 0x9C, /* cyan */
- 0x66, 0x70, 0x86, 0x3A, 0xc6, 0x48, /* green */
- 0x68, 0x54, 0x88, 0xC6, 0xc8, 0xB8, /* magenta */
- 0x6A, 0x41, 0x8A, 0xD4, 0xcA, 0x64, /* red */
- 0x6C, 0x23, 0x8C, 0x72, 0xcC, 0xD4, /* blue */
- 0x6E, 0x10, 0x8E, 0x80, 0xcE, 0x80, /* black */
- };
- int i;
- u8 val;
-
- for (i = 0; i < ARRAY_SIZE(init) / 2; i += 2)
- bt866_write(encoder, init[i], init[i+1]);
-
- val = encoder->reg[0xdc];
-
- if (*iarg == 0)
- val |= 0x40; /* CBSWAP */
- else
- val &= ~0x40; /* !CBSWAP */
-
- bt866_write(encoder, 0xdc, val);
-
- val = encoder->reg[0xcc];
- if (*iarg == 2)
- val |= 0x01; /* OSDBAR */
- else
- val &= ~0x01; /* !OSDBAR */
- bt866_write(encoder, 0xcc, val);
-
- DEBUG(printk(KERN_INFO "%s: set input %d\n",
- encoder->i2c->name, *iarg));
-
- switch (*iarg) {
- case 0:
- break;
- case 1:
- break;
- default:
- return -EINVAL;
-
- }
- }
- break;
-
- case ENCODER_SET_OUTPUT:
- {
- int *iarg = arg;
-
- DEBUG(printk(KERN_INFO "%s: set output %d\n",
- encoder->i2c->name, *iarg));
-
- /* not much choice of outputs */
- if (*iarg != 0)
- return -EINVAL;
- }
- break;
-
- case ENCODER_ENABLE_OUTPUT:
- {
- int *iarg = arg;
- encoder->enable = !!*iarg;
-
- DEBUG(printk
- (KERN_INFO "%s: enable output %d\n",
- encoder->i2c->name, encoder->enable));
- }
- break;
-
- case 4711:
- {
- int *iarg = arg;
- __u8 val;
-
- printk("bt866: square = %d\n", *iarg);
-
- val = encoder->reg[0xdc];
- if (*iarg)
- val |= 1; /* SQUARE */
- else
- val &= ~1; /* !SQUARE */
- bt866_write(encoder, 0xdc, val);
- break;
- }
-
- default:
- return -EINVAL;
- }
-
- return 0;
+ return container_of(sd, struct bt866, sd);
}
-static int bt866_write(struct bt866 *encoder,
- unsigned char subaddr, unsigned char data)
+static int bt866_write(struct bt866 *encoder, u8 subaddr, u8 data)
{
- unsigned char buffer[2];
+ struct i2c_client *client = v4l2_get_subdevdata(&encoder->sd);
+ u8 buffer[2];
int err;
buffer[0] = subaddr;
encoder->reg[subaddr] = data;
- DEBUG(printk
- ("%s: write 0x%02X = 0x%02X\n",
- encoder->i2c->name, subaddr, data));
+ v4l_dbg(1, debug, client, "write 0x%02x = 0x%02x\n", subaddr, data);
for (err = 0; err < 3;) {
- if (i2c_master_send(encoder->i2c, buffer, 2) == 2)
+ if (i2c_master_send(client, buffer, 2) == 2)
break;
err++;
- printk(KERN_WARNING "%s: I/O error #%d "
- "(write 0x%02x/0x%02x)\n",
- encoder->i2c->name, err, encoder->addr, subaddr);
+ v4l_warn(client, "error #%d writing to 0x%02x\n",
+ err, subaddr);
schedule_timeout_interruptible(msecs_to_jiffies(100));
}
if (err == 3) {
- printk(KERN_WARNING "%s: giving up\n",
- encoder->i2c->name);
+ v4l_warn(client, "giving up\n");
return -1;
}
return 0;
}
-static int bt866_attach(struct i2c_adapter *adapter);
-static int bt866_detach(struct i2c_client *client);
-static int bt866_command(struct i2c_client *client,
- unsigned int cmd, void *arg);
+static int bt866_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+ v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std);
+ /* Only PAL supported by this driver at the moment! */
+ if (!(std & V4L2_STD_NTSC))
+ return -EINVAL;
+ return 0;
+}
-/* Addresses to scan */
-static unsigned short normal_i2c[] = {I2C_BT866>>1, I2C_CLIENT_END};
-static unsigned short probe[2] = {I2C_CLIENT_END, I2C_CLIENT_END};
-static unsigned short ignore[2] = {I2C_CLIENT_END, I2C_CLIENT_END};
+static int bt866_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
+{
+ static const __u8 init[] = {
+ 0xc8, 0xcc, /* CRSCALE */
+ 0xca, 0x91, /* CBSCALE */
+ 0xcc, 0x24, /* YC16 | OSDNUM */
+ 0xda, 0x00, /* */
+ 0xdc, 0x24, /* SETMODE | PAL */
+ 0xde, 0x02, /* EACTIVE */
+
+ /* overlay colors */
+ 0x70, 0xEB, 0x90, 0x80, 0xB0, 0x80, /* white */
+ 0x72, 0xA2, 0x92, 0x8E, 0xB2, 0x2C, /* yellow */
+ 0x74, 0x83, 0x94, 0x2C, 0xB4, 0x9C, /* cyan */
+ 0x76, 0x70, 0x96, 0x3A, 0xB6, 0x48, /* green */
+ 0x78, 0x54, 0x98, 0xC6, 0xB8, 0xB8, /* magenta */
+ 0x7A, 0x41, 0x9A, 0xD4, 0xBA, 0x64, /* red */
+ 0x7C, 0x23, 0x9C, 0x72, 0xBC, 0xD4, /* blue */
+ 0x7E, 0x10, 0x9E, 0x80, 0xBE, 0x80, /* black */
+
+ 0x60, 0xEB, 0x80, 0x80, 0xc0, 0x80, /* white */
+ 0x62, 0xA2, 0x82, 0x8E, 0xc2, 0x2C, /* yellow */
+ 0x64, 0x83, 0x84, 0x2C, 0xc4, 0x9C, /* cyan */
+ 0x66, 0x70, 0x86, 0x3A, 0xc6, 0x48, /* green */
+ 0x68, 0x54, 0x88, 0xC6, 0xc8, 0xB8, /* magenta */
+ 0x6A, 0x41, 0x8A, 0xD4, 0xcA, 0x64, /* red */
+ 0x6C, 0x23, 0x8C, 0x72, 0xcC, 0xD4, /* blue */
+ 0x6E, 0x10, 0x8E, 0x80, 0xcE, 0x80, /* black */
+ };
+ struct bt866 *encoder = to_bt866(sd);
+ u8 val;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(init) / 2; i += 2)
+ bt866_write(encoder, init[i], init[i+1]);
+
+ val = encoder->reg[0xdc];
+
+ if (route->input == 0)
+ val |= 0x40; /* CBSWAP */
+ else
+ val &= ~0x40; /* !CBSWAP */
+
+ bt866_write(encoder, 0xdc, val);
+
+ val = encoder->reg[0xcc];
+ if (route->input == 2)
+ val |= 0x01; /* OSDBAR */
+ else
+ val &= ~0x01; /* !OSDBAR */
+ bt866_write(encoder, 0xcc, val);
+
+ v4l2_dbg(1, debug, sd, "set input %d\n", route->input);
+
+ switch (route->input) {
+ case 0:
+ case 1:
+ case 2:
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
-static struct i2c_client_address_data addr_data = {
- normal_i2c,
- probe,
- ignore,
-};
+#if 0
+/* Code to setup square pixels, might be of some use in the future,
+ but is currently unused. */
+ val = encoder->reg[0xdc];
+ if (*iarg)
+ val |= 1; /* SQUARE */
+ else
+ val &= ~1; /* !SQUARE */
+ bt866_write(client, 0xdc, val);
+#endif
+
+static int bt866_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_BT866, 0);
+}
+
+/* ----------------------------------------------------------------------- */
-static struct i2c_driver i2c_driver_bt866 = {
- .driver.name = BT866_DEVNAME,
- .id = I2C_DRIVERID_BT866,
- .attach_adapter = bt866_attach,
- .detach_client = bt866_detach,
- .command = bt866_command
+static const struct v4l2_subdev_core_ops bt866_core_ops = {
+ .g_chip_ident = bt866_g_chip_ident,
};
+static const struct v4l2_subdev_video_ops bt866_video_ops = {
+ .s_std_output = bt866_s_std_output,
+ .s_routing = bt866_s_routing,
+};
-static struct i2c_client bt866_client_tmpl =
-{
- .name = "(nil)",
- .addr = 0,
- .adapter = NULL,
- .driver = &i2c_driver_bt866,
+static const struct v4l2_subdev_ops bt866_ops = {
+ .core = &bt866_core_ops,
+ .video = &bt866_video_ops,
};
-static int bt866_found_proc(struct i2c_adapter *adapter,
- int addr, int kind)
+static int bt866_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
struct bt866 *encoder;
- struct i2c_client *client;
+ struct v4l2_subdev *sd;
- client = kzalloc(sizeof(*client), GFP_KERNEL);
- if (client == NULL)
- return -ENOMEM;
- memcpy(client, &bt866_client_tmpl, sizeof(*client));
+ v4l_info(client, "chip found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
encoder = kzalloc(sizeof(*encoder), GFP_KERNEL);
- if (encoder == NULL) {
- kfree(client);
+ if (encoder == NULL)
return -ENOMEM;
- }
-
- i2c_set_clientdata(client, encoder);
- client->adapter = adapter;
- client->addr = addr;
- sprintf(client->name, "%s-%02x", BT866_DEVNAME, adapter->id);
-
- encoder->i2c = client;
- encoder->addr = addr;
- //encoder->encoder_type = ENCODER_TYPE_UNKNOWN;
-
- /* initialize */
-
- i2c_attach_client(client);
-
- return 0;
-}
-
-static int bt866_attach(struct i2c_adapter *adapter)
-{
- if (adapter->id == I2C_HW_B_ZR36067)
- return i2c_probe(adapter, &addr_data, bt866_found_proc);
- return 0;
-}
-
-static int bt866_detach(struct i2c_client *client)
-{
- struct bt866 *encoder = i2c_get_clientdata(client);
-
- i2c_detach_client(client);
- kfree(encoder);
- kfree(client);
-
+ sd = &encoder->sd;
+ v4l2_i2c_subdev_init(sd, client, &bt866_ops);
return 0;
}
-static int bt866_command(struct i2c_client *client,
- unsigned int cmd, void *arg)
+static int bt866_remove(struct i2c_client *client)
{
- struct bt866 *encoder = i2c_get_clientdata(client);
- return bt866_do_command(encoder, cmd, arg);
-}
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
-static int __devinit bt866_init(void)
-{
- i2c_add_driver(&i2c_driver_bt866);
+ v4l2_device_unregister_subdev(sd);
+ kfree(to_bt866(sd));
return 0;
}
-static void __devexit bt866_exit(void)
-{
- i2c_del_driver(&i2c_driver_bt866);
-}
+static const struct i2c_device_id bt866_id[] = {
+ { "bt866", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, bt866_id);
-module_init(bt866_init);
-module_exit(bt866_exit);
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "bt866",
+ .probe = bt866_probe,
+ .remove = bt866_remove,
+ .id_table = bt866_id,
+};
git.openpandora.org / pandora-kernel.git / blobdiff