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V4L/DVB (10655): tvp514x: make the module aware of rich people 

because they might design two of those chips on a single board.
You never know.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sebastian Andrzej Siewior 2009-01-12 06:17:43 -03:00 committed by Mauro Carvalho Chehab
parent df7fa09cca
commit 6722e0ef1f
1 changed files with 60 additions and 46 deletions
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98
drivers/media/video/tvp514x.c
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@ -86,9 +86,12 @@ struct tvp514x_std_info {
struct v4l2_standard standard;
};
static struct tvp514x_reg tvp514x_reg_list_default[0x40];
/**
* struct tvp514x_decoded - TVP5146/47 decoder object
* struct tvp514x_decoder - TVP5146/47 decoder object
* @v4l2_int_device: Slave handle
* @tvp514x_slave: Slave pointer which is used by @v4l2_int_device
* @tvp514x_regs: copy of hw's regs with preset values.
* @pdata: Board specific
* @client: I2C client data
* @id: Entry from I2C table
@ -103,7 +106,9 @@ struct tvp514x_std_info {
* @route: input and output routing at chip level
*/
struct tvp514x_decoder {
struct v4l2_int_device *v4l2_int_device;
struct v4l2_int_device v4l2_int_device;
struct v4l2_int_slave tvp514x_slave;
struct tvp514x_reg tvp514x_regs[ARRAY_SIZE(tvp514x_reg_list_default)];
const struct tvp514x_platform_data *pdata;
struct i2c_client *client;
@ -124,7 +129,7 @@ struct tvp514x_decoder {
};
/* TVP514x default register values */
static struct tvp514x_reg tvp514x_reg_list[] = {
static struct tvp514x_reg tvp514x_reg_list_default[] = {
{TOK_WRITE, REG_INPUT_SEL, 0x05}, /* Composite selected */
{TOK_WRITE, REG_AFE_GAIN_CTRL, 0x0F},
{TOK_WRITE, REG_VIDEO_STD, 0x00}, /* Auto mode */
@ -422,7 +427,7 @@ static int tvp514x_configure(struct tvp514x_decoder *decoder)
/* common register initialization */
err =
tvp514x_write_regs(decoder->client, tvp514x_reg_list);
tvp514x_write_regs(decoder->client, decoder->tvp514x_regs);
if (err)
return err;
@ -580,7 +585,8 @@ static int ioctl_s_std(struct v4l2_int_device *s, v4l2_std_id *std_id)
return err;
decoder->current_std = i;
tvp514x_reg_list[REG_VIDEO_STD].val = decoder->std_list[i].video_std;
decoder->tvp514x_regs[REG_VIDEO_STD].val =
decoder->std_list[i].video_std;
v4l_dbg(1, debug, decoder->client, "Standard set to: %s",
decoder->std_list[i].standard.name);
@ -625,8 +631,8 @@ static int ioctl_s_routing(struct v4l2_int_device *s,
if (err)
return err;
tvp514x_reg_list[REG_INPUT_SEL].val = input_sel;
tvp514x_reg_list[REG_OUTPUT_FORMATTER1].val = output_sel;
decoder->tvp514x_regs[REG_INPUT_SEL].val = input_sel;
decoder->tvp514x_regs[REG_OUTPUT_FORMATTER1].val = output_sel;
/* Clear status */
msleep(LOCK_RETRY_DELAY);
@ -779,16 +785,16 @@ ioctl_g_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
ctrl->value = tvp514x_reg_list[REG_BRIGHTNESS].val;
ctrl->value = decoder->tvp514x_regs[REG_BRIGHTNESS].val;
break;
case V4L2_CID_CONTRAST:
ctrl->value = tvp514x_reg_list[REG_CONTRAST].val;
ctrl->value = decoder->tvp514x_regs[REG_CONTRAST].val;
break;
case V4L2_CID_SATURATION:
ctrl->value = tvp514x_reg_list[REG_SATURATION].val;
ctrl->value = decoder->tvp514x_regs[REG_SATURATION].val;
break;
case V4L2_CID_HUE:
ctrl->value = tvp514x_reg_list[REG_HUE].val;
ctrl->value = decoder->tvp514x_regs[REG_HUE].val;
if (ctrl->value == 0x7F)
ctrl->value = 180;
else if (ctrl->value == 0x80)
@ -798,7 +804,7 @@ ioctl_g_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
break;
case V4L2_CID_AUTOGAIN:
ctrl->value = tvp514x_reg_list[REG_AFE_GAIN_CTRL].val;
ctrl->value = decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val;
if ((ctrl->value & 0x3) == 3)
ctrl->value = 1;
else
@ -848,7 +854,7 @@ ioctl_s_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
value);
if (err)
return err;
tvp514x_reg_list[REG_BRIGHTNESS].val = value;
decoder->tvp514x_regs[REG_BRIGHTNESS].val = value;
break;
case V4L2_CID_CONTRAST:
if (ctrl->value < 0 || ctrl->value > 255) {
@ -861,7 +867,7 @@ ioctl_s_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
value);
if (err)
return err;
tvp514x_reg_list[REG_CONTRAST].val = value;
decoder->tvp514x_regs[REG_CONTRAST].val = value;
break;
case V4L2_CID_SATURATION:
if (ctrl->value < 0 || ctrl->value > 255) {
@ -874,7 +880,7 @@ ioctl_s_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
value);
if (err)
return err;
tvp514x_reg_list[REG_SATURATION].val = value;
decoder->tvp514x_regs[REG_SATURATION].val = value;
break;
case V4L2_CID_HUE:
if (value == 180)
@ -893,7 +899,7 @@ ioctl_s_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
value);
if (err)
return err;
tvp514x_reg_list[REG_HUE].val = value;
decoder->tvp514x_regs[REG_HUE].val = value;
break;
case V4L2_CID_AUTOGAIN:
if (value == 1)
@ -910,7 +916,7 @@ ioctl_s_ctrl(struct v4l2_int_device *s, struct v4l2_control *ctrl)
value);
if (err)
return err;
tvp514x_reg_list[REG_AFE_GAIN_CTRL].val = value;
decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val = value;
break;
default:
v4l_err(decoder->client,
@ -1275,7 +1281,7 @@ static int ioctl_init(struct v4l2_int_device *s)
struct tvp514x_decoder *decoder = s->priv;
/* Set default standard to auto */
tvp514x_reg_list[REG_VIDEO_STD].val =
decoder->tvp514x_regs[REG_VIDEO_STD].val =
VIDEO_STD_AUTO_SWITCH_BIT;
return tvp514x_configure(decoder);
@ -1344,11 +1350,6 @@ static struct v4l2_int_ioctl_desc tvp514x_ioctl_desc[] = {
(v4l2_int_ioctl_func *) ioctl_s_routing},
};
static struct v4l2_int_slave tvp514x_slave = {
.ioctls = tvp514x_ioctl_desc,
.num_ioctls = ARRAY_SIZE(tvp514x_ioctl_desc),
};
static struct tvp514x_decoder tvp514x_dev = {
.state = STATE_NOT_DETECTED,
@ -1369,16 +1370,14 @@ static struct tvp514x_decoder tvp514x_dev = {
.current_std = STD_NTSC_MJ,
.std_list = tvp514x_std_list,
.num_stds = ARRAY_SIZE(tvp514x_std_list),
};
static struct v4l2_int_device tvp514x_int_device = {
.v4l2_int_device = {
.module = THIS_MODULE,
.name = TVP514X_MODULE_NAME,
.priv = &tvp514x_dev,
.type = v4l2_int_type_slave,
.u = {
.slave = &tvp514x_slave,
},
.tvp514x_slave = {
.ioctls = tvp514x_ioctl_desc,
.num_ioctls = ARRAY_SIZE(tvp514x_ioctl_desc),
},
};
@ -1392,26 +1391,37 @@ static struct v4l2_int_device tvp514x_int_device = {
static int
tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct tvp514x_decoder *decoder = &tvp514x_dev;
struct tvp514x_decoder *decoder;
int err;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EIO;
decoder->pdata = client->dev.platform_data;
if (!decoder->pdata) {
decoder = kzalloc(sizeof(*decoder), GFP_KERNEL);
if (!decoder)
return -ENOMEM;
if (!client->dev.platform_data) {
v4l_err(client, "No platform data!!\n");
return -ENODEV;
err = -ENODEV;
goto out_free;
}
*decoder = tvp514x_dev;
decoder->v4l2_int_device.priv = decoder;
decoder->pdata = client->dev.platform_data;
decoder->v4l2_int_device.u.slave = &decoder->tvp514x_slave;
memcpy(decoder->tvp514x_regs, tvp514x_reg_list_default,
sizeof(tvp514x_reg_list_default));
/*
* Fetch platform specific data, and configure the
* tvp514x_reg_list[] accordingly. Since this is one
* time configuration, no need to preserve.
*/
tvp514x_reg_list[REG_OUTPUT_FORMATTER2].val |=
decoder->tvp514x_regs[REG_OUTPUT_FORMATTER2].val |=
(decoder->pdata->clk_polarity << 1);
tvp514x_reg_list[REG_SYNC_CONTROL].val |=
decoder->tvp514x_regs[REG_SYNC_CONTROL].val |=
((decoder->pdata->hs_polarity << 2) |
(decoder->pdata->vs_polarity << 3));
/*
@ -1419,23 +1429,27 @@ tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id)
*/
decoder->id = (struct i2c_device_id *)id;
/* Attach to Master */
strcpy(tvp514x_int_device.u.slave->attach_to, decoder->pdata->master);
decoder->v4l2_int_device = &tvp514x_int_device;
strcpy(decoder->v4l2_int_device.u.slave->attach_to,
decoder->pdata->master);
decoder->client = client;
i2c_set_clientdata(client, decoder);
/* Register with V4L2 layer as slave device */
err = v4l2_int_device_register(decoder->v4l2_int_device);
err = v4l2_int_device_register(&decoder->v4l2_int_device);
if (err) {
i2c_set_clientdata(client, NULL);
v4l_err(client,
"Unable to register to v4l2. Err[%d]\n", err);
goto out_free;
} else
v4l_info(client, "Registered to v4l2 master %s!!\n",
decoder->pdata->master);
return 0;
out_free:
kfree(decoder);
return err;
}
/**
@ -1452,9 +1466,9 @@ static int __exit tvp514x_remove(struct i2c_client *client)
if (!client->adapter)
return -ENODEV; /* our client isn't attached */
v4l2_int_device_unregister(decoder->v4l2_int_device);
v4l2_int_device_unregister(&decoder->v4l2_int_device);
i2c_set_clientdata(client, NULL);
kfree(decoder);
return 0;
}
/*