-/*
+/*
* saa7185 - Philips SAA7185B video encoder driver version 0.0.3
*
* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
*/
#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/pci.h>
-#include <linux/signal.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <linux/sched.h>
-#include <asm/segment.h>
#include <linux/types.h>
-
-#include <linux/videodev.h>
+#include <linux/slab.h>
+#include <linux/ioctl.h>
#include <asm/uaccess.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("Philips SAA7185 video encoder driver");
MODULE_AUTHOR("Dave Perks");
MODULE_LICENSE("GPL");
-#include <linux/i2c.h>
-#include <linux/i2c-dev.h>
-
-#define I2C_NAME(s) (s)->name
-
-#include <linux/video_encoder.h>
-
-static int debug = 0;
+static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-1)");
-#define dprintk(num, format, args...) \
- do { \
- if (debug >= num) \
- printk(format, ##args); \
- } while (0)
/* ----------------------------------------------------------------------- */
struct saa7185 {
+ struct v4l2_subdev sd;
unsigned char reg[128];
- int norm;
- int enable;
- int bright;
- int contrast;
- int hue;
- int sat;
+ v4l2_std_id norm;
};
-#define I2C_SAA7185 0x88
+static inline struct saa7185 *to_saa7185(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct saa7185, sd);
+}
/* ----------------------------------------------------------------------- */
-static inline int
-saa7185_read (struct i2c_client *client)
+static inline int saa7185_read(struct v4l2_subdev *sd)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
return i2c_smbus_read_byte(client);
}
-static int
-saa7185_write (struct i2c_client *client,
- u8 reg,
- u8 value)
+static int saa7185_write(struct v4l2_subdev *sd, u8 reg, u8 value)
{
- struct saa7185 *encoder = i2c_get_clientdata(client);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct saa7185 *encoder = to_saa7185(sd);
- dprintk(1, KERN_DEBUG "SAA7185: %02x set to %02x\n", reg, value);
+ v4l2_dbg(1, debug, sd, "%02x set to %02x\n", reg, value);
encoder->reg[reg] = value;
return i2c_smbus_write_byte_data(client, reg, value);
}
-static int
-saa7185_write_block (struct i2c_client *client,
- const u8 *data,
- unsigned int len)
+static int saa7185_write_block(struct v4l2_subdev *sd,
+ const u8 *data, unsigned int len)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct saa7185 *encoder = to_saa7185(sd);
int ret = -1;
u8 reg;
* the adapter understands raw I2C */
if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
/* do raw I2C, not smbus compatible */
- struct saa7185 *encoder = i2c_get_clientdata(client);
- struct i2c_msg msg;
u8 block_data[32];
+ int block_len;
- msg.addr = client->addr;
- msg.flags = 0;
while (len >= 2) {
- msg.buf = (char *) block_data;
- msg.len = 0;
- block_data[msg.len++] = reg = data[0];
+ block_len = 0;
+ block_data[block_len++] = reg = data[0];
do {
- block_data[msg.len++] =
+ block_data[block_len++] =
encoder->reg[reg++] = data[1];
len -= 2;
data += 2;
- } while (len >= 2 && data[0] == reg &&
- msg.len < 32);
- if ((ret = i2c_transfer(client->adapter,
- &msg, 1)) < 0)
+ } while (len >= 2 && data[0] == reg && block_len < 32);
+ ret = i2c_master_send(client, block_data, block_len);
+ if (ret < 0)
break;
}
} else {
/* do some slow I2C emulation kind of thing */
while (len >= 2) {
reg = *data++;
- if ((ret = saa7185_write(client, reg,
- *data++)) < 0)
+ ret = saa7185_write(sd, reg, *data++);
+ if (ret < 0)
break;
len -= 2;
}
0x66, 0x21, /* FSC3 */
};
-static int
-saa7185_command (struct i2c_client *client,
- unsigned int cmd,
- void *arg)
-{
- struct saa7185 *encoder = i2c_get_clientdata(client);
-
- switch (cmd) {
-
- case 0:
- saa7185_write_block(client, init_common,
- sizeof(init_common));
- switch (encoder->norm) {
-
- case VIDEO_MODE_NTSC:
- saa7185_write_block(client, init_ntsc,
- sizeof(init_ntsc));
- break;
-
- case VIDEO_MODE_PAL:
- saa7185_write_block(client, init_pal,
- sizeof(init_pal));
- break;
- }
-
- break;
-
- case ENCODER_GET_CAPABILITIES:
- {
- struct video_encoder_capability *cap = arg;
-
- cap->flags =
- VIDEO_ENCODER_PAL | VIDEO_ENCODER_NTSC |
- VIDEO_ENCODER_SECAM | VIDEO_ENCODER_CCIR;
- cap->inputs = 1;
- cap->outputs = 1;
- }
- break;
-
- case ENCODER_SET_NORM:
- {
- int *iarg = arg;
-
- //saa7185_write_block(client, init_common, sizeof(init_common));
-
- switch (*iarg) {
-
- case VIDEO_MODE_NTSC:
- saa7185_write_block(client, init_ntsc,
- sizeof(init_ntsc));
- break;
-
- case VIDEO_MODE_PAL:
- saa7185_write_block(client, init_pal,
- sizeof(init_pal));
- break;
-
- case VIDEO_MODE_SECAM:
- default:
- return -EINVAL;
-
- }
- encoder->norm = *iarg;
- }
- break;
- case ENCODER_SET_INPUT:
- {
- int *iarg = arg;
+static int saa7185_init(struct v4l2_subdev *sd, u32 val)
+{
+ struct saa7185 *encoder = to_saa7185(sd);
- /* RJ: *iarg = 0: input is from SA7111
- *iarg = 1: input is from ZR36060 */
+ saa7185_write_block(sd, init_common, sizeof(init_common));
+ if (encoder->norm & V4L2_STD_NTSC)
+ saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
+ else
+ saa7185_write_block(sd, init_pal, sizeof(init_pal));
+ return 0;
+}
- switch (*iarg) {
+static int saa7185_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+ struct saa7185 *encoder = to_saa7185(sd);
- case 0:
- /* Switch RTCE to 1 */
- saa7185_write(client, 0x61,
- (encoder->reg[0x61] & 0xf7) | 0x08);
- saa7185_write(client, 0x6e, 0x01);
- break;
+ if (std & V4L2_STD_NTSC)
+ saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
+ else if (std & V4L2_STD_PAL)
+ saa7185_write_block(sd, init_pal, sizeof(init_pal));
+ else
+ return -EINVAL;
+ encoder->norm = std;
+ return 0;
+}
- case 1:
- /* Switch RTCE to 0 */
- saa7185_write(client, 0x61,
- (encoder->reg[0x61] & 0xf7) | 0x00);
- /* SW: a slight sync problem... */
- saa7185_write(client, 0x6e, 0x00);
- break;
+static int saa7185_s_routing(struct v4l2_subdev *sd,
+ u32 input, u32 output, u32 config)
+{
+ struct saa7185 *encoder = to_saa7185(sd);
- default:
- return -EINVAL;
+ /* RJ: input = 0: input is from SA7111
+ input = 1: input is from ZR36060 */
- }
- }
+ switch (input) {
+ case 0:
+ /* turn off colorbar */
+ saa7185_write(sd, 0x3a, 0x0f);
+ /* Switch RTCE to 1 */
+ saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08);
+ saa7185_write(sd, 0x6e, 0x01);
break;
- case ENCODER_SET_OUTPUT:
- {
- int *iarg = arg;
-
- /* not much choice of outputs */
- if (*iarg != 0) {
- return -EINVAL;
- }
- }
+ case 1:
+ /* turn off colorbar */
+ saa7185_write(sd, 0x3a, 0x0f);
+ /* Switch RTCE to 0 */
+ saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x00);
+ /* SW: a slight sync problem... */
+ saa7185_write(sd, 0x6e, 0x00);
break;
- case ENCODER_ENABLE_OUTPUT:
- {
- int *iarg = arg;
-
- encoder->enable = !!*iarg;
- saa7185_write(client, 0x61,
- (encoder->reg[0x61] & 0xbf) |
- (encoder->enable ? 0x00 : 0x40));
- }
+ case 2:
+ /* turn on colorbar */
+ saa7185_write(sd, 0x3a, 0x8f);
+ /* Switch RTCE to 0 */
+ saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08);
+ /* SW: a slight sync problem... */
+ saa7185_write(sd, 0x6e, 0x01);
break;
default:
return -EINVAL;
}
-
return 0;
}
+static int saa7185_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_SAA7185, 0);
+}
+
/* ----------------------------------------------------------------------- */
-/*
- * Generic i2c probe
- * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
- */
-static unsigned short normal_i2c[] = { I2C_SAA7185 >> 1, I2C_CLIENT_END };
-
-static unsigned short ignore = I2C_CLIENT_END;
-
-static struct i2c_client_address_data addr_data = {
- .normal_i2c = normal_i2c,
- .probe = &ignore,
- .ignore = &ignore,
- .force = &ignore,
+static const struct v4l2_subdev_core_ops saa7185_core_ops = {
+ .g_chip_ident = saa7185_g_chip_ident,
+ .init = saa7185_init,
+};
+
+static const struct v4l2_subdev_video_ops saa7185_video_ops = {
+ .s_std_output = saa7185_s_std_output,
+ .s_routing = saa7185_s_routing,
+};
+
+static const struct v4l2_subdev_ops saa7185_ops = {
+ .core = &saa7185_core_ops,
+ .video = &saa7185_video_ops,
};
-static struct i2c_driver i2c_driver_saa7185;
-static int
-saa7185_detect_client (struct i2c_adapter *adapter,
- int address,
- int kind)
+/* ----------------------------------------------------------------------- */
+
+static int saa7185_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
int i;
- struct i2c_client *client;
struct saa7185 *encoder;
-
- dprintk(1,
- KERN_INFO
- "saa7185.c: detecting saa7185 client on address 0x%x\n",
- address << 1);
+ struct v4l2_subdev *sd;
/* Check if the adapter supports the needed features */
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return 0;
-
- client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
- if (client == 0)
- return -ENOMEM;
- memset(client, 0, sizeof(struct i2c_client));
- client->addr = address;
- client->adapter = adapter;
- client->driver = &i2c_driver_saa7185;
- client->flags = I2C_CLIENT_ALLOW_USE;
- strlcpy(I2C_NAME(client), "saa7185", sizeof(I2C_NAME(client)));
-
- encoder = kmalloc(sizeof(struct saa7185), GFP_KERNEL);
- if (encoder == NULL) {
- kfree(client);
- return -ENOMEM;
- }
- memset(encoder, 0, sizeof(struct saa7185));
- encoder->norm = VIDEO_MODE_NTSC;
- encoder->enable = 1;
- i2c_set_clientdata(client, encoder);
-
- i = i2c_attach_client(client);
- if (i) {
- kfree(client);
- kfree(encoder);
- return i;
- }
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
- i = saa7185_write_block(client, init_common, sizeof(init_common));
- if (i >= 0) {
- i = saa7185_write_block(client, init_ntsc,
- sizeof(init_ntsc));
- }
- if (i < 0) {
- dprintk(1, KERN_ERR "%s_attach: init error %d\n",
- I2C_NAME(client), i);
- } else {
- dprintk(1,
- KERN_INFO
- "%s_attach: chip version %d at address 0x%x\n",
- I2C_NAME(client), saa7185_read(client) >> 5,
- client->addr << 1);
- }
+ v4l_info(client, "chip found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
+ encoder = kzalloc(sizeof(struct saa7185), GFP_KERNEL);
+ if (encoder == NULL)
+ return -ENOMEM;
+ encoder->norm = V4L2_STD_NTSC;
+ sd = &encoder->sd;
+ v4l2_i2c_subdev_init(sd, client, &saa7185_ops);
+
+ i = saa7185_write_block(sd, init_common, sizeof(init_common));
+ if (i >= 0)
+ i = saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
+ if (i < 0)
+ v4l2_dbg(1, debug, sd, "init error %d\n", i);
+ else
+ v4l2_dbg(1, debug, sd, "revision 0x%x\n",
+ saa7185_read(sd) >> 5);
return 0;
}
-static int
-saa7185_attach_adapter (struct i2c_adapter *adapter)
+static int saa7185_remove(struct i2c_client *client)
{
- dprintk(1,
- KERN_INFO
- "saa7185.c: starting probe for adapter %s (0x%x)\n",
- I2C_NAME(adapter), adapter->id);
- return i2c_probe(adapter, &addr_data, &saa7185_detect_client);
-}
-
-static int
-saa7185_detach_client (struct i2c_client *client)
-{
- struct saa7185 *encoder = i2c_get_clientdata(client);
- int err;
-
- err = i2c_detach_client(client);
- if (err) {
- return err;
- }
-
- saa7185_write(client, 0x61, (encoder->reg[0x61]) | 0x40); /* SW: output off is active */
- //saa7185_write(client, 0x3a, (encoder->reg[0x3a]) | 0x80); /* SW: color bar */
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct saa7185 *encoder = to_saa7185(sd);
+ v4l2_device_unregister_subdev(sd);
+ /* SW: output off is active */
+ saa7185_write(sd, 0x61, (encoder->reg[0x61]) | 0x40);
kfree(encoder);
- kfree(client);
-
return 0;
}
/* ----------------------------------------------------------------------- */
-static struct i2c_driver i2c_driver_saa7185 = {
- .owner = THIS_MODULE,
- .name = "saa7185", /* name */
-
- .id = I2C_DRIVERID_SAA7185B,
- .flags = I2C_DF_NOTIFY,
-
- .attach_adapter = saa7185_attach_adapter,
- .detach_client = saa7185_detach_client,
- .command = saa7185_command,
+static const struct i2c_device_id saa7185_id[] = {
+ { "saa7185", 0 },
+ { }
};
+MODULE_DEVICE_TABLE(i2c, saa7185_id);
-static int __init
-saa7185_init (void)
-{
- return i2c_add_driver(&i2c_driver_saa7185);
-}
-
-static void __exit
-saa7185_exit (void)
-{
- i2c_del_driver(&i2c_driver_saa7185);
-}
-
-module_init(saa7185_init);
-module_exit(saa7185_exit);
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "saa7185",
+ .probe = saa7185_probe,
+ .remove = saa7185_remove,
+ .id_table = saa7185_id,
+};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff