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yaml
---
r: 137982
b: refs/heads/master
c: 780d8e1
h: refs/heads/master
v: v3
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Hans Verkuil authored and Mauro Carvalho Chehab committed Mar 30, 2009
1 parent 9700ed6 commit b98064b
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Showing 3 changed files with 123 additions and 99 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: e7946844e676b5d33876d36db92f386a9907a0f4
refs/heads/master: 780d8e1552efb61122c269382b3fa8987aca3e89
217 changes: 119 additions & 98 deletions trunk/drivers/media/video/saa7185.c
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Expand Up @@ -30,59 +30,68 @@
#include <asm/uaccess.h>
#include <linux/i2c.h>
#include <linux/i2c-id.h>
#include <linux/videodev.h>
#include <linux/video_encoder.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-legacy.h>

MODULE_DESCRIPTION("Philips SAA7185 video encoder driver");
MODULE_AUTHOR("Dave Perks");
MODULE_LICENSE("GPL");


static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-1)");

static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };

I2C_CLIENT_INSMOD;

/* ----------------------------------------------------------------------- */

struct saa7185 {
struct v4l2_subdev sd;
unsigned char reg[128];

v4l2_std_id norm;
int bright;
int contrast;
int hue;
int sat;
};

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);

v4l_dbg(1, debug, client, "%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,
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 adv7175 has an autoincrement function, use it if
* 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);
u8 block_data[32];
int block_len;

Expand All @@ -103,7 +112,7 @@ static int saa7185_write_block(struct i2c_client *client,
/* do some slow I2C emulation kind of thing */
while (len >= 2) {
reg = *data++;
ret = saa7185_write(client, reg, *data++);
ret = saa7185_write(sd, reg, *data++);
if (ret < 0)
break;
len -= 2;
Expand Down Expand Up @@ -212,101 +221,111 @@ static const unsigned char init_ntsc[] = {
0x66, 0x21, /* FSC3 */
};

static int saa7185_command(struct i2c_client *client, unsigned cmd, void *arg)

static int saa7185_init(struct v4l2_subdev *sd, u32 val)
{
struct saa7185 *encoder = to_saa7185(sd);

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;
}

static int saa7185_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
{
struct saa7185 *encoder = to_saa7185(sd);

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;
}

static int saa7185_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
{
struct saa7185 *encoder = i2c_get_clientdata(client);

switch (cmd) {
case VIDIOC_INT_INIT:
saa7185_write_block(client, init_common,
sizeof(init_common));
if (encoder->norm & V4L2_STD_NTSC)
saa7185_write_block(client, init_ntsc,
sizeof(init_ntsc));
else
saa7185_write_block(client, init_pal,
sizeof(init_pal));
struct saa7185 *encoder = to_saa7185(sd);

/* RJ: route->input = 0: input is from SA7111
route->input = 1: input is from ZR36060 */

switch (route->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 VIDIOC_INT_S_STD_OUTPUT:
{
v4l2_std_id *iarg = arg;

//saa7185_write_block(client, init_common, sizeof(init_common));

if (*iarg & V4L2_STD_NTSC)
saa7185_write_block(client, init_ntsc,
sizeof(init_ntsc));
else if (*iarg & V4L2_STD_PAL)
saa7185_write_block(client, init_pal,
sizeof(init_pal));
else
return -EINVAL;
encoder->norm = *iarg;
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 VIDIOC_INT_S_VIDEO_ROUTING:
{
struct v4l2_routing *route = arg;

/* RJ: route->input = 0: input is from SA7111
route->input = 1: input is from ZR36060 */

switch (route->input) {
case 0:
/* turn off colorbar */
saa7185_write(client, 0x3a, 0x0f);
/* Switch RTCE to 1 */
saa7185_write(client, 0x61,
(encoder->reg[0x61] & 0xf7) | 0x08);
saa7185_write(client, 0x6e, 0x01);
break;

case 1:
/* turn off colorbar */
saa7185_write(client, 0x3a, 0x0f);
/* Switch RTCE to 0 */
saa7185_write(client, 0x61,
(encoder->reg[0x61] & 0xf7) | 0x00);
/* SW: a slight sync problem... */
saa7185_write(client, 0x6e, 0x00);
break;

case 2:
/* turn on colorbar */
saa7185_write(client, 0x3a, 0x8f);
/* Switch RTCE to 0 */
saa7185_write(client, 0x61,
(encoder->reg[0x61] & 0xf7) | 0x08);
/* SW: a slight sync problem... */
saa7185_write(client, 0x6e, 0x01);
break;

default:
return -EINVAL;
}
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);
}

static int saa7185_command(struct i2c_client *client, unsigned cmd, void *arg)
{
return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
}

/* ----------------------------------------------------------------------- */

static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
static const struct v4l2_subdev_core_ops saa7185_core_ops = {
.g_chip_ident = saa7185_g_chip_ident,
.init = saa7185_init,
};

I2C_CLIENT_INSMOD;
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 int saa7185_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int i;
struct saa7185 *encoder;
struct v4l2_subdev *sd;

/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
Expand All @@ -319,26 +338,28 @@ static int saa7185_probe(struct i2c_client *client,
if (encoder == NULL)
return -ENOMEM;
encoder->norm = V4L2_STD_NTSC;
i2c_set_clientdata(client, encoder);
sd = &encoder->sd;
v4l2_i2c_subdev_init(sd, client, &saa7185_ops);

i = saa7185_write_block(client, init_common, sizeof(init_common));
i = saa7185_write_block(sd, init_common, sizeof(init_common));
if (i >= 0)
i = saa7185_write_block(client, init_ntsc, sizeof(init_ntsc));
i = saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
if (i < 0)
v4l_dbg(1, debug, client, "init error %d\n", i);
v4l2_dbg(1, debug, sd, "init error %d\n", i);
else
v4l_dbg(1, debug, client, "revision 0x%x\n",
saa7185_read(client) >> 5);
v4l2_dbg(1, debug, sd, "revision 0x%x\n",
saa7185_read(sd) >> 5);
return 0;
}

static int saa7185_remove(struct i2c_client *client)
{
struct saa7185 *encoder = i2c_get_clientdata(client);

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);
return 0;
}
Expand Down
3 changes: 3 additions & 0 deletions trunk/include/media/v4l2-chip-ident.h
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Original file line number Diff line number Diff line change
Expand Up @@ -113,6 +113,9 @@ enum {
V4L2_IDENT_SAA6752HS = 6752,
V4L2_IDENT_SAA6752HS_AC3 = 6753,

/* module saa7185: just ident 7185 */
V4L2_IDENT_SAA7185 = 7185,

/* module wm8739: just ident 8739 */
V4L2_IDENT_WM8739 = 8739,

Expand Down

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