because they might design two of those chips on a single board.
You never know.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
Sorry for the delay. While I was preparing v2 I lost the tvp514x_slave
chunk. Now I see a can see a picture error when I plug two codecs
simultaneity but this could be also a bug in my cam driver.
v3: - addressed review comments
- move tvp514x_slave into decoder struct it is used per device while
registering / comparing
v2: Make the content of the registers (brightness, \ldots) per decoder
and not global.
v1: Initial version
drivers/media/video/tvp514x.c | 104 +++++++++++++++++++++++------------------
1 files changed, 58 insertions(+), 46 deletions(-)
diff --git a/drivers/media/video/tvp514x.c b/drivers/media/video/tvp514x.c
index 8e23aa5..2167284 100644
--- a/drivers/media/video/tvp514x.c
+++ b/drivers/media/video/tvp514x.c
@@ -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 +585,7 @@ 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 +630,8 @@ 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 +784,16 @@ 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 +803,7 @@ 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 +853,7 @@ 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 +866,7 @@ 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 +879,7 @@ 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 +898,7 @@ 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 +915,7 @@ 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 +1280,7 @@ 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 +1349,6 @@ 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,
@@ -1369,17 +1369,15 @@ 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 = {
- .module = THIS_MODULE,
- .name = TVP514X_MODULE_NAME,
- .priv = &tvp514x_dev,
- .type = v4l2_int_type_slave,
- .u = {
- .slave = &tvp514x_slave,
- },
+ .v4l2_int_device = {
+ .module = THIS_MODULE,
+ .name = TVP514X_MODULE_NAME,
+ .type = v4l2_int_type_slave,
+ },
+ .tvp514x_slave = {
+ .ioctls = tvp514x_ioctl_desc,
+ .num_ioctls = ARRAY_SIZE(tvp514x_ioctl_desc),
+ },
};
/**
@@ -1392,26 +1390,37 @@ 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 +1428,26 @@ 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 +1464,9 @@ 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;
}
/*
--
1.5.6.5
--
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