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Diffstat (limited to 'drivers/media/video/tw9910.c')
-rw-r--r--drivers/media/video/tw9910.c337
1 files changed, 167 insertions, 170 deletions
diff --git a/drivers/media/video/tw9910.c b/drivers/media/video/tw9910.c
index 269ab044072..5b801a6e1ee 100644
--- a/drivers/media/video/tw9910.c
+++ b/drivers/media/video/tw9910.c
@@ -29,7 +29,7 @@
#include <media/tw9910.h>
#define GET_ID(val) ((val & 0xF8) >> 3)
-#define GET_ReV(val) (val & 0x07)
+#define GET_REV(val) (val & 0x07)
/*
* register offset
@@ -117,7 +117,7 @@
#define LCTL24 0x68
#define LCTL25 0x69
#define LCTL26 0x6A
-#define HSGEGIN 0x6B
+#define HSBEGIN 0x6B
#define HSEND 0x6C
#define OVSDLY 0x6D
#define OVSEND 0x6E
@@ -152,7 +152,10 @@
/* 1 : non-auto */
#define VSCTL 0x08 /* 1 : Vertical out ctrl by DVALID */
/* 0 : Vertical out ctrl by HACTIVE and DVALID */
-#define OEN 0x04 /* Output Enable together with TRI_SEL. */
+#define OEN_TRI_SEL_MASK 0x07
+#define OEN_TRI_SEL_ALL_ON 0x00 /* Enable output for Rev0/Rev1 */
+#define OEN_TRI_SEL_ALL_OFF_r0 0x06 /* All tri-stated for Rev0 */
+#define OEN_TRI_SEL_ALL_OFF_r1 0x07 /* All tri-stated for Rev1 */
/* OUTCTR1 */
#define VSP_LO 0x00 /* 0 : VS pin output polarity is active low */
@@ -178,11 +181,18 @@
* but all register content remain unchanged.
* This bit is self-resetting.
*/
+#define ACNTL1_PDN_MASK 0x0e
+#define CLK_PDN 0x08 /* system clock power down */
+#define Y_PDN 0x04 /* Luma ADC power down */
+#define C_PDN 0x02 /* Chroma ADC power down */
+
+/* ACNTL2 */
+#define ACNTL2_PDN_MASK 0x40
+#define PLL_PDN 0x40 /* PLL power down */
/* VBICNTL */
-/* RTSEL : control the real time signal
-* output from the MPOUT pin
-*/
+
+/* RTSEL : control the real time signal output from the MPOUT pin */
#define RTSEL_MASK 0x07
#define RTSEL_VLOSS 0x00 /* 0000 = Video loss */
#define RTSEL_HLOCK 0x01 /* 0001 = H-lock */
@@ -226,28 +236,7 @@ struct tw9910_priv {
struct v4l2_subdev subdev;
struct tw9910_video_info *info;
const struct tw9910_scale_ctrl *scale;
-};
-
-/*
- * register settings
- */
-
-#define ENDMARKER { 0xff, 0xff }
-
-static const struct regval_list tw9910_default_regs[] =
-{
- { OPFORM, 0x00 },
- { OUTCTR1, VSP_LO | VSSL_VVALID | HSP_HI | HSSL_HSYNC },
- ENDMARKER,
-};
-
-static const struct soc_camera_data_format tw9910_color_fmt[] = {
- {
- .name = "VYUY",
- .fourcc = V4L2_PIX_FMT_VYUY,
- .depth = 16,
- .colorspace = V4L2_COLORSPACE_SMPTE170M,
- }
+ u32 revision;
};
static const struct tw9910_scale_ctrl tw9910_ntsc_scales[] = {
@@ -340,13 +329,6 @@ static const struct tw9910_scale_ctrl tw9910_pal_scales[] = {
},
};
-static const struct tw9910_cropping_ctrl tw9910_cropping_ctrl = {
- .vdelay = 0x0012,
- .vactive = 0x00F0,
- .hdelay = 0x0010,
- .hactive = 0x02D0,
-};
-
static const struct tw9910_hsync_ctrl tw9910_hsync_ctrl = {
.start = 0x0260,
.end = 0x0300,
@@ -361,6 +343,19 @@ static struct tw9910_priv *to_tw9910(const struct i2c_client *client)
subdev);
}
+static int tw9910_mask_set(struct i2c_client *client, u8 command,
+ u8 mask, u8 set)
+{
+ s32 val = i2c_smbus_read_byte_data(client, command);
+ if (val < 0)
+ return val;
+
+ val &= ~mask;
+ val |= set & mask;
+
+ return i2c_smbus_write_byte_data(client, command, val);
+}
+
static int tw9910_set_scale(struct i2c_client *client,
const struct tw9910_scale_ctrl *scale)
{
@@ -383,47 +378,14 @@ static int tw9910_set_scale(struct i2c_client *client,
return ret;
}
-static int tw9910_set_cropping(struct i2c_client *client,
- const struct tw9910_cropping_ctrl *cropping)
-{
- int ret;
-
- ret = i2c_smbus_write_byte_data(client, CROP_HI,
- (cropping->vdelay & 0x0300) >> 2 |
- (cropping->vactive & 0x0300) >> 4 |
- (cropping->hdelay & 0x0300) >> 6 |
- (cropping->hactive & 0x0300) >> 8);
- if (ret < 0)
- return ret;
-
- ret = i2c_smbus_write_byte_data(client, VDELAY_LO,
- cropping->vdelay & 0x00FF);
- if (ret < 0)
- return ret;
-
- ret = i2c_smbus_write_byte_data(client, VACTIVE_LO,
- cropping->vactive & 0x00FF);
- if (ret < 0)
- return ret;
-
- ret = i2c_smbus_write_byte_data(client, HDELAY_LO,
- cropping->hdelay & 0x00FF);
- if (ret < 0)
- return ret;
-
- ret = i2c_smbus_write_byte_data(client, HACTIVE_LO,
- cropping->hactive & 0x00FF);
-
- return ret;
-}
-
static int tw9910_set_hsync(struct i2c_client *client,
const struct tw9910_hsync_ctrl *hsync)
{
+ struct tw9910_priv *priv = to_tw9910(client);
int ret;
/* bit 10 - 3 */
- ret = i2c_smbus_write_byte_data(client, HSGEGIN,
+ ret = i2c_smbus_write_byte_data(client, HSBEGIN,
(hsync->start & 0x07F8) >> 3);
if (ret < 0)
return ret;
@@ -434,50 +396,41 @@ static int tw9910_set_hsync(struct i2c_client *client,
if (ret < 0)
return ret;
+ /* So far only revisions 0 and 1 have been seen */
/* bit 2 - 0 */
- ret = i2c_smbus_read_byte_data(client, HSLOWCTL);
- if (ret < 0)
- return ret;
-
- ret = i2c_smbus_write_byte_data(client, HSLOWCTL,
- (ret & 0x88) |
- (hsync->start & 0x0007) << 4 |
- (hsync->end & 0x0007));
+ if (1 == priv->revision)
+ ret = tw9910_mask_set(client, HSLOWCTL, 0x77,
+ (hsync->start & 0x0007) << 4 |
+ (hsync->end & 0x0007));
return ret;
}
-static int tw9910_write_array(struct i2c_client *client,
- const struct regval_list *vals)
+static void tw9910_reset(struct i2c_client *client)
{
- while (vals->reg_num != 0xff) {
- int ret = i2c_smbus_write_byte_data(client,
- vals->reg_num,
- vals->value);
- if (ret < 0)
- return ret;
- vals++;
- }
- return 0;
+ tw9910_mask_set(client, ACNTL1, SRESET, SRESET);
+ msleep(1);
}
-static int tw9910_mask_set(struct i2c_client *client, u8 command,
- u8 mask, u8 set)
+static int tw9910_power(struct i2c_client *client, int enable)
{
- s32 val = i2c_smbus_read_byte_data(client, command);
- if (val < 0)
- return val;
+ int ret;
+ u8 acntl1;
+ u8 acntl2;
- val &= ~mask;
- val |= set & mask;
+ if (enable) {
+ acntl1 = 0;
+ acntl2 = 0;
+ } else {
+ acntl1 = CLK_PDN | Y_PDN | C_PDN;
+ acntl2 = PLL_PDN;
+ }
- return i2c_smbus_write_byte_data(client, command, val);
-}
+ ret = tw9910_mask_set(client, ACNTL1, ACNTL1_PDN_MASK, acntl1);
+ if (ret < 0)
+ return ret;
-static void tw9910_reset(struct i2c_client *client)
-{
- i2c_smbus_write_byte_data(client, ACNTL1, SRESET);
- msleep(1);
+ return tw9910_mask_set(client, ACNTL2, ACNTL2_PDN_MASK, acntl2);
}
static const struct tw9910_scale_ctrl*
@@ -518,27 +471,62 @@ static int tw9910_s_stream(struct v4l2_subdev *sd, int enable)
{
struct i2c_client *client = sd->priv;
struct tw9910_priv *priv = to_tw9910(client);
+ u8 val;
+ int ret;
- if (!enable)
- return 0;
+ if (!enable) {
+ switch (priv->revision) {
+ case 0:
+ val = OEN_TRI_SEL_ALL_OFF_r0;
+ break;
+ case 1:
+ val = OEN_TRI_SEL_ALL_OFF_r1;
+ break;
+ default:
+ dev_err(&client->dev, "un-supported revision\n");
+ return -EINVAL;
+ }
+ } else {
+ val = OEN_TRI_SEL_ALL_ON;
- if (!priv->scale) {
- dev_err(&client->dev, "norm select error\n");
- return -EPERM;
+ if (!priv->scale) {
+ dev_err(&client->dev, "norm select error\n");
+ return -EPERM;
+ }
+
+ dev_dbg(&client->dev, "%s %dx%d\n",
+ priv->scale->name,
+ priv->scale->width,
+ priv->scale->height);
}
- dev_dbg(&client->dev, "%s %dx%d\n",
- priv->scale->name,
- priv->scale->width,
- priv->scale->height);
+ ret = tw9910_mask_set(client, OPFORM, OEN_TRI_SEL_MASK, val);
+ if (ret < 0)
+ return ret;
- return 0;
+ return tw9910_power(client, enable);
}
static int tw9910_set_bus_param(struct soc_camera_device *icd,
unsigned long flags)
{
- return 0;
+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
+ struct i2c_client *client = sd->priv;
+ u8 val = VSSL_VVALID | HSSL_DVALID;
+
+ /*
+ * set OUTCTR1
+ *
+ * We use VVALID and DVALID signals to control VSYNC and HSYNC
+ * outputs, in this mode their polarity is inverted.
+ */
+ if (flags & SOCAM_HSYNC_ACTIVE_LOW)
+ val |= HSP_HI;
+
+ if (flags & SOCAM_VSYNC_ACTIVE_LOW)
+ val |= VSP_HI;
+
+ return i2c_smbus_write_byte_data(client, OUTCTR1, val);
}
static unsigned long tw9910_query_bus_param(struct soc_camera_device *icd)
@@ -548,6 +536,7 @@ static unsigned long tw9910_query_bus_param(struct soc_camera_device *icd)
struct soc_camera_link *icl = to_soc_camera_link(icd);
unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER |
SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH |
+ SOCAM_VSYNC_ACTIVE_LOW | SOCAM_HSYNC_ACTIVE_LOW |
SOCAM_DATA_ACTIVE_HIGH | priv->info->buswidth;
return soc_camera_apply_sensor_flags(icl, flags);
@@ -576,8 +565,11 @@ static int tw9910_enum_input(struct soc_camera_device *icd,
static int tw9910_g_chip_ident(struct v4l2_subdev *sd,
struct v4l2_dbg_chip_ident *id)
{
+ struct i2c_client *client = sd->priv;
+ struct tw9910_priv *priv = to_tw9910(client);
+
id->ident = V4L2_IDENT_TW9910;
- id->revision = 0;
+ id->revision = priv->revision;
return 0;
}
@@ -596,7 +588,8 @@ static int tw9910_g_register(struct v4l2_subdev *sd,
if (ret < 0)
return ret;
- /* ret = int
+ /*
+ * ret = int
* reg->val = __u64
*/
reg->val = (__u64)ret;
@@ -637,9 +630,6 @@ static int tw9910_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
* reset hardware
*/
tw9910_reset(client);
- ret = tw9910_write_array(client, tw9910_default_regs);
- if (ret < 0)
- goto tw9910_set_fmt_error;
/*
* set bus width
@@ -688,13 +678,6 @@ static int tw9910_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
goto tw9910_set_fmt_error;
/*
- * set cropping
- */
- ret = tw9910_set_cropping(client, &tw9910_cropping_ctrl);
- if (ret < 0)
- goto tw9910_set_fmt_error;
-
- /*
* set hsync
*/
ret = tw9910_set_hsync(client, &tw9910_hsync_ctrl);
@@ -762,11 +745,11 @@ static int tw9910_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
return 0;
}
-static int tw9910_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+static int tw9910_g_fmt(struct v4l2_subdev *sd,
+ struct v4l2_mbus_framefmt *mf)
{
struct i2c_client *client = sd->priv;
struct tw9910_priv *priv = to_tw9910(client);
- struct v4l2_pix_format *pix = &f->fmt.pix;
if (!priv->scale) {
int ret;
@@ -783,74 +766,76 @@ static int tw9910_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
return ret;
}
- f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-
- pix->width = priv->scale->width;
- pix->height = priv->scale->height;
- pix->pixelformat = V4L2_PIX_FMT_VYUY;
- pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
- pix->field = V4L2_FIELD_INTERLACED;
+ mf->width = priv->scale->width;
+ mf->height = priv->scale->height;
+ mf->code = V4L2_MBUS_FMT_YUYV8_2X8_BE;
+ mf->colorspace = V4L2_COLORSPACE_JPEG;
+ mf->field = V4L2_FIELD_INTERLACED_BT;
return 0;
}
-static int tw9910_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+static int tw9910_s_fmt(struct v4l2_subdev *sd,
+ struct v4l2_mbus_framefmt *mf)
{
struct i2c_client *client = sd->priv;
struct tw9910_priv *priv = to_tw9910(client);
- struct v4l2_pix_format *pix = &f->fmt.pix;
/* See tw9910_s_crop() - no proper cropping support */
struct v4l2_crop a = {
.c = {
.left = 0,
.top = 0,
- .width = pix->width,
- .height = pix->height,
+ .width = mf->width,
+ .height = mf->height,
},
};
- int i, ret;
+ int ret;
+
+ WARN_ON(mf->field != V4L2_FIELD_ANY &&
+ mf->field != V4L2_FIELD_INTERLACED_BT);
/*
* check color format
*/
- for (i = 0; i < ARRAY_SIZE(tw9910_color_fmt); i++)
- if (pix->pixelformat == tw9910_color_fmt[i].fourcc)
- break;
-
- if (i == ARRAY_SIZE(tw9910_color_fmt))
+ if (mf->code != V4L2_MBUS_FMT_YUYV8_2X8_BE)
return -EINVAL;
+ mf->colorspace = V4L2_COLORSPACE_JPEG;
+
ret = tw9910_s_crop(sd, &a);
if (!ret) {
- pix->width = priv->scale->width;
- pix->height = priv->scale->height;
+ mf->width = priv->scale->width;
+ mf->height = priv->scale->height;
}
return ret;
}
-static int tw9910_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *f)
+static int tw9910_try_fmt(struct v4l2_subdev *sd,
+ struct v4l2_mbus_framefmt *mf)
{
struct i2c_client *client = sd->priv;
struct soc_camera_device *icd = client->dev.platform_data;
- struct v4l2_pix_format *pix = &f->fmt.pix;
const struct tw9910_scale_ctrl *scale;
- if (V4L2_FIELD_ANY == pix->field) {
- pix->field = V4L2_FIELD_INTERLACED;
- } else if (V4L2_FIELD_INTERLACED != pix->field) {
- dev_err(&client->dev, "Field type invalid.\n");
+ if (V4L2_FIELD_ANY == mf->field) {
+ mf->field = V4L2_FIELD_INTERLACED_BT;
+ } else if (V4L2_FIELD_INTERLACED_BT != mf->field) {
+ dev_err(&client->dev, "Field type %d invalid.\n", mf->field);
return -EINVAL;
}
+ mf->code = V4L2_MBUS_FMT_YUYV8_2X8_BE;
+ mf->colorspace = V4L2_COLORSPACE_JPEG;
+
/*
* select suitable norm
*/
- scale = tw9910_select_norm(icd, pix->width, pix->height);
+ scale = tw9910_select_norm(icd, mf->width, mf->height);
if (!scale)
return -EINVAL;
- pix->width = scale->width;
- pix->height = scale->height;
+ mf->width = scale->width;
+ mf->height = scale->height;
return 0;
}
@@ -859,7 +844,7 @@ static int tw9910_video_probe(struct soc_camera_device *icd,
struct i2c_client *client)
{
struct tw9910_priv *priv = to_tw9910(client);
- s32 val;
+ s32 id;
/*
* We must have a parent by now. And it cannot be a wrong one.
@@ -878,23 +863,24 @@ static int tw9910_video_probe(struct soc_camera_device *icd,
return -ENODEV;
}
- icd->formats = tw9910_color_fmt;
- icd->num_formats = ARRAY_SIZE(tw9910_color_fmt);
-
/*
* check and show Product ID
+ * So far only revisions 0 and 1 have been seen
*/
- val = i2c_smbus_read_byte_data(client, ID);
+ id = i2c_smbus_read_byte_data(client, ID);
+ priv->revision = GET_REV(id);
+ id = GET_ID(id);
- if (0x0B != GET_ID(val) ||
- 0x00 != GET_ReV(val)) {
+ if (0x0B != id ||
+ 0x01 < priv->revision) {
dev_err(&client->dev,
- "Product ID error %x:%x\n", GET_ID(val), GET_ReV(val));
+ "Product ID error %x:%x\n",
+ id, priv->revision);
return -ENODEV;
}
dev_info(&client->dev,
- "tw9910 Product ID %0x:%0x\n", GET_ID(val), GET_ReV(val));
+ "tw9910 Product ID %0x:%0x\n", id, priv->revision);
icd->vdev->tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL;
icd->vdev->current_norm = V4L2_STD_NTSC;
@@ -917,14 +903,25 @@ static struct v4l2_subdev_core_ops tw9910_subdev_core_ops = {
#endif
};
+static int tw9910_enum_fmt(struct v4l2_subdev *sd, int index,
+ enum v4l2_mbus_pixelcode *code)
+{
+ if (index)
+ return -EINVAL;
+
+ *code = V4L2_MBUS_FMT_YUYV8_2X8_BE;
+ return 0;
+}
+
static struct v4l2_subdev_video_ops tw9910_subdev_video_ops = {
.s_stream = tw9910_s_stream,
- .g_fmt = tw9910_g_fmt,
- .s_fmt = tw9910_s_fmt,
- .try_fmt = tw9910_try_fmt,
+ .g_mbus_fmt = tw9910_g_fmt,
+ .s_mbus_fmt = tw9910_s_fmt,
+ .try_mbus_fmt = tw9910_try_fmt,
.cropcap = tw9910_cropcap,
.g_crop = tw9910_g_crop,
.s_crop = tw9910_s_crop,
+ .enum_mbus_fmt = tw9910_enum_fmt,
};
static struct v4l2_subdev_ops tw9910_subdev_ops = {
@@ -954,10 +951,10 @@ static int tw9910_probe(struct i2c_client *client,
}
icl = to_soc_camera_link(icd);
- if (!icl)
+ if (!icl || !icl->priv)
return -EINVAL;
- info = container_of(icl, struct tw9910_video_info, link);
+ info = icl->priv;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
dev_err(&client->dev,
@@ -975,7 +972,7 @@ static int tw9910_probe(struct i2c_client *client,
v4l2_i2c_subdev_init(&priv->subdev, client, &tw9910_subdev_ops);
icd->ops = &tw9910_ops;
- icd->iface = info->link.bus_id;
+ icd->iface = icl->bus_id;
ret = tw9910_video_probe(icd, client);
if (ret) {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-03 13:31:51 +0000