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linux/drivers/media/usb/go7007/s2250-board.c
Tomi Valkeinen 0d346d2a6f media: v4l2-subdev: add subdev-wide state struct 
We have 'struct v4l2_subdev_pad_config' which contains configuration for
a single pad used for the TRY functionality, and an array of those
structs is passed to various v4l2_subdev_pad_ops.

I was working on subdev internal routing between pads, and realized that
there's no way to add TRY functionality for routes, which is not pad
specific configuration. Adding a separate struct for try-route config
wouldn't work either, as e.g. set-fmt needs to know the try-route
configuration to propagate the settings.

This patch adds a new struct, 'struct v4l2_subdev_state' (which at the
moment only contains the v4l2_subdev_pad_config array) and the new
struct is used in most of the places where v4l2_subdev_pad_config was
used. All v4l2_subdev_pad_ops functions taking v4l2_subdev_pad_config
are changed to instead take v4l2_subdev_state.

The changes to drivers/media/v4l2-core/v4l2-subdev.c and
include/media/v4l2-subdev.h were written by hand, and all the driver
changes were done with the semantic patch below. The spatch needs to be
applied to a select list of directories. I used the following shell
commands to apply the spatch:

dirs="drivers/media/i2c drivers/media/platform drivers/media/usb drivers/media/test-drivers/vimc drivers/media/pci drivers/staging/media"
for dir in $dirs; do spatch -j8 --dir --include-headers --no-show-diff --in-place --sp-file v4l2-subdev-state.cocci $dir; done

Note that Coccinelle chokes on a few drivers (gcc extensions?). With
minor changes we can make Coccinelle run fine, and these changes can be
reverted after spatch. The diff for these changes is:

For drivers/media/i2c/s5k5baf.c:

	@@ -1481,7 +1481,7 @@ static int s5k5baf_set_selection(struct v4l2_subdev *sd,
	 				&s5k5baf_cis_rect,
	 				v4l2_subdev_get_try_crop(sd, cfg, PAD_CIS),
	 				v4l2_subdev_get_try_compose(sd, cfg, PAD_CIS),
	-				v4l2_subdev_get_try_crop(sd, cfg, PAD_OUT)
	+				v4l2_subdev_get_try_crop(sd, cfg, PAD_OUT),
	 			};
	 		s5k5baf_set_rect_and_adjust(rects, rtype, &sel->r);
	 		return 0;

For drivers/media/platform/s3c-camif/camif-capture.c:

	@@ -1230,7 +1230,7 @@ static int s3c_camif_subdev_get_fmt(struct v4l2_subdev *sd,
	 		*mf = camif->mbus_fmt;
	 		break;

	-	case CAMIF_SD_PAD_SOURCE_C...CAMIF_SD_PAD_SOURCE_P:
	+	case CAMIF_SD_PAD_SOURCE_C:
	 		/* crop rectangle at camera interface input */
	 		mf->width = camif->camif_crop.width;
	 		mf->height = camif->camif_crop.height;
	@@ -1332,7 +1332,7 @@ static int s3c_camif_subdev_set_fmt(struct v4l2_subdev *sd,
	 		}
	 		break;

	-	case CAMIF_SD_PAD_SOURCE_C...CAMIF_SD_PAD_SOURCE_P:
	+	case CAMIF_SD_PAD_SOURCE_C:
	 		/* Pixel format can be only changed on the sink pad. */
	 		mf->code = camif->mbus_fmt.code;
	 		mf->width = crop->width;

The semantic patch is:

// <smpl>

// Change function parameter

@@
identifier func;
identifier cfg;
@@

 func(...,
-   struct v4l2_subdev_pad_config *cfg
+   struct v4l2_subdev_state *sd_state
    , ...)
 {
 <...
- cfg
+ sd_state
 ...>
 }

// Change function declaration parameter

@@
identifier func;
identifier cfg;
type T;
@@
T func(...,
-   struct v4l2_subdev_pad_config *cfg
+   struct v4l2_subdev_state *sd_state
    , ...);

// Change function return value

@@
identifier func;
@@
- struct v4l2_subdev_pad_config
+ struct v4l2_subdev_state
 *func(...)
 {
    ...
 }

// Change function declaration return value

@@
identifier func;
@@
- struct v4l2_subdev_pad_config
+ struct v4l2_subdev_state
 *func(...);

// Some drivers pass a local pad_cfg for a single pad to a called function. Wrap it
// inside a pad_state.

@@
identifier func;
identifier pad_cfg;
@@
func(...)
{
    ...
    struct v4l2_subdev_pad_config pad_cfg;
+   struct v4l2_subdev_state pad_state = { .pads = &pad_cfg };

    <+...

(
    v4l2_subdev_call
|
    sensor_call
|
    isi_try_fse
|
    isc_try_fse
|
    saa_call_all
)
    (...,
-   &pad_cfg
+   &pad_state
    ,...)

    ...+>
}

// If the function uses fields from pad_config, access via state->pads

@@
identifier func;
identifier state;
@@
 func(...,
    struct v4l2_subdev_state *state
    , ...)
 {
    <...
(
-   state->try_fmt
+   state->pads->try_fmt
|
-   state->try_crop
+   state->pads->try_crop
|
-   state->try_compose
+   state->pads->try_compose
)
    ...>
}

// If the function accesses the filehandle, use fh->state instead

@@
struct v4l2_subdev_fh *fh;
@@
-    fh->pad
+    fh->state

@@
struct v4l2_subdev_fh fh;
@@
-    fh.pad
+    fh.state

// Start of vsp1 specific

@@
@@
struct vsp1_entity {
    ...
-    struct v4l2_subdev_pad_config *config;
+    struct v4l2_subdev_state *config;
    ...
};

@@
symbol entity;
@@
vsp1_entity_init(...)
{
    ...
    entity->config =
-    v4l2_subdev_alloc_pad_config
+    v4l2_subdev_alloc_state
    (&entity->subdev);
    ...
}

@@
symbol entity;
@@
vsp1_entity_destroy(...)
{
    ...
-   v4l2_subdev_free_pad_config
+   v4l2_subdev_free_state
    (entity->config);
    ...
}

@exists@
identifier func =~ "(^vsp1.*)|(hsit_set_format)|(sru_enum_frame_size)|(sru_set_format)|(uif_get_selection)|(uif_set_selection)|(uds_enum_frame_size)|(uds_set_format)|(brx_set_format)|(brx_get_selection)|(histo_get_selection)|(histo_set_selection)|(brx_set_selection)";
symbol config;
@@
func(...) {
    ...
-    struct v4l2_subdev_pad_config *config;
+    struct v4l2_subdev_state *config;
    ...
}

// End of vsp1 specific

// Start of rcar specific

@@
identifier sd;
identifier pad_cfg;
@@
 rvin_try_format(...)
 {
    ...
-   struct v4l2_subdev_pad_config *pad_cfg;
+   struct v4l2_subdev_state *sd_state;
    ...
-   pad_cfg = v4l2_subdev_alloc_pad_config(sd);
+   sd_state = v4l2_subdev_alloc_state(sd);
    <...
-   pad_cfg
+   sd_state
    ...>
-   v4l2_subdev_free_pad_config(pad_cfg);
+   v4l2_subdev_free_state(sd_state);
    ...
 }

// End of rcar specific

// Start of rockchip specific

@@
identifier func =~ "(rkisp1_rsz_get_pad_fmt)|(rkisp1_rsz_get_pad_crop)|(rkisp1_rsz_register)";
symbol rsz;
symbol pad_cfg;
@@

 func(...)
 {
+   struct v4l2_subdev_state state = { .pads = rsz->pad_cfg };
    ...
-   rsz->pad_cfg
+   &state
    ...
 }

@@
identifier func =~ "(rkisp1_isp_get_pad_fmt)|(rkisp1_isp_get_pad_crop)";
symbol isp;
symbol pad_cfg;
@@

 func(...)
 {
+   struct v4l2_subdev_state state = { .pads = isp->pad_cfg };
    ...
-   isp->pad_cfg
+   &state
    ...
 }

@@
symbol rkisp1;
symbol isp;
symbol pad_cfg;
@@

 rkisp1_isp_register(...)
 {
+   struct v4l2_subdev_state state = { .pads = rkisp1->isp.pad_cfg };
    ...
-   rkisp1->isp.pad_cfg
+   &state
    ...
 }

// End of rockchip specific

// Start of tegra-video specific

@@
identifier sd;
identifier pad_cfg;
@@
 __tegra_channel_try_format(...)
 {
    ...
-   struct v4l2_subdev_pad_config *pad_cfg;
+   struct v4l2_subdev_state *sd_state;
    ...
-   pad_cfg = v4l2_subdev_alloc_pad_config(sd);
+   sd_state = v4l2_subdev_alloc_state(sd);
    <...
-   pad_cfg
+   sd_state
    ...>
-   v4l2_subdev_free_pad_config(pad_cfg);
+   v4l2_subdev_free_state(sd_state);
    ...
 }

@@
identifier sd_state;
@@
 __tegra_channel_try_format(...)
 {
    ...
    struct v4l2_subdev_state *sd_state;
    <...
-   sd_state->try_crop
+   sd_state->pads->try_crop
    ...>
 }

// End of tegra-video specific

// </smpl>

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-17 10:01:27 +02:00

633 lines
14 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2008 Sensoray Company Inc.
*/
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
#include <linux/slab.h>
#include <media/v4l2-device.h>
#include <media/v4l2-common.h>
#include <media/v4l2-subdev.h>
#include "go7007-priv.h"
MODULE_DESCRIPTION("Sensoray 2250/2251 i2c v4l2 subdev driver");
MODULE_LICENSE("GPL v2");
/*
* Note: this board has two i2c devices: a vpx3226f and a tlv320aic23b.
* Due to the unusual way these are accessed on this device we do not
* reuse the i2c drivers, but instead they are implemented in this
* driver. It would be nice to improve on this, though.
*/
#define TLV320_ADDRESS 0x34
#define VPX322_ADDR_ANALOGCONTROL1 0x02
#define VPX322_ADDR_BRIGHTNESS0 0x0127
#define VPX322_ADDR_BRIGHTNESS1 0x0131
#define VPX322_ADDR_CONTRAST0 0x0128
#define VPX322_ADDR_CONTRAST1 0x0132
#define VPX322_ADDR_HUE 0x00dc
#define VPX322_ADDR_SAT 0x0030
struct go7007_usb_board {
unsigned int flags;
struct go7007_board_info main_info;
};
struct go7007_usb {
struct go7007_usb_board *board;
struct mutex i2c_lock;
struct usb_device *usbdev;
struct urb *video_urbs[8];
struct urb *audio_urbs[8];
struct urb *intr_urb;
};
static unsigned char aud_regs[] = {
0x1e, 0x00,
0x00, 0x17,
0x02, 0x17,
0x04, 0xf9,
0x06, 0xf9,
0x08, 0x02,
0x0a, 0x00,
0x0c, 0x00,
0x0a, 0x00,
0x0c, 0x00,
0x0e, 0x02,
0x10, 0x00,
0x12, 0x01,
0x00, 0x00,
};
static unsigned char vid_regs[] = {
0xF2, 0x0f,
0xAA, 0x00,
0xF8, 0xff,
0x00, 0x00,
};
static u16 vid_regs_fp[] = {
0x028, 0x067,
0x120, 0x016,
0x121, 0xcF2,
0x122, 0x0F2,
0x123, 0x00c,
0x124, 0x2d0,
0x125, 0x2e0,
0x126, 0x004,
0x128, 0x1E0,
0x12A, 0x016,
0x12B, 0x0F2,
0x12C, 0x0F2,
0x12D, 0x00c,
0x12E, 0x2d0,
0x12F, 0x2e0,
0x130, 0x004,
0x132, 0x1E0,
0x140, 0x060,
0x153, 0x00C,
0x154, 0x200,
0x150, 0x801,
0x000, 0x000
};
/* PAL specific values */
static u16 vid_regs_fp_pal[] = {
0x120, 0x017,
0x121, 0xd22,
0x122, 0x122,
0x12A, 0x017,
0x12B, 0x122,
0x12C, 0x122,
0x140, 0x060,
0x000, 0x000,
};
struct s2250 {
struct v4l2_subdev sd;
struct v4l2_ctrl_handler hdl;
v4l2_std_id std;
int input;
int brightness;
int contrast;
int saturation;
int hue;
int reg12b_val;
int audio_input;
struct i2c_client *audio;
};
static inline struct s2250 *to_state(struct v4l2_subdev *sd)
{
return container_of(sd, struct s2250, sd);
}
/* from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
static int go7007_usb_vendor_request(struct go7007 *go, u16 request,
u16 value, u16 index, void *transfer_buffer, int length, int in)
{
struct go7007_usb *usb = go->hpi_context;
int timeout = 5000;
if (in) {
return usb_control_msg(usb->usbdev,
usb_rcvctrlpipe(usb->usbdev, 0), request,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
value, index, transfer_buffer, length, timeout);
} else {
return usb_control_msg(usb->usbdev,
usb_sndctrlpipe(usb->usbdev, 0), request,
USB_TYPE_VENDOR | USB_RECIP_DEVICE,
value, index, transfer_buffer, length, timeout);
}
}
/* end from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
static int write_reg(struct i2c_client *client, u8 reg, u8 value)
{
struct go7007 *go = i2c_get_adapdata(client->adapter);
struct go7007_usb *usb;
int rc;
int dev_addr = client->addr << 1; /* firmware wants 8-bit address */
u8 *buf;
if (go == NULL)
return -ENODEV;
if (go->status == STATUS_SHUTDOWN)
return -EBUSY;
buf = kzalloc(16, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
usb = go->hpi_context;
if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
dev_info(&client->dev, "i2c lock failed\n");
kfree(buf);
return -EINTR;
}
rc = go7007_usb_vendor_request(go, 0x55, dev_addr,
(reg<<8 | value),
buf,
16, 1);
mutex_unlock(&usb->i2c_lock);
kfree(buf);
return rc;
}
static int write_reg_fp(struct i2c_client *client, u16 addr, u16 val)
{
struct go7007 *go = i2c_get_adapdata(client->adapter);
struct go7007_usb *usb;
int rc;
u8 *buf;
struct s2250 *dec = i2c_get_clientdata(client);
if (go == NULL)
return -ENODEV;
if (go->status == STATUS_SHUTDOWN)
return -EBUSY;
buf = kzalloc(16, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
memset(buf, 0xcd, 6);
usb = go->hpi_context;
if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
dev_info(&client->dev, "i2c lock failed\n");
kfree(buf);
return -EINTR;
}
rc = go7007_usb_vendor_request(go, 0x57, addr, val, buf, 16, 1);
mutex_unlock(&usb->i2c_lock);
if (rc < 0) {
kfree(buf);
return rc;
}
if (buf[0] == 0) {
unsigned int subaddr, val_read;
subaddr = (buf[4] << 8) + buf[5];
val_read = (buf[2] << 8) + buf[3];
kfree(buf);
if (val_read != val) {
dev_info(&client->dev, "invalid fp write %x %x\n",
val_read, val);
return -EFAULT;
}
if (subaddr != addr) {
dev_info(&client->dev, "invalid fp write addr %x %x\n",
subaddr, addr);
return -EFAULT;
}
} else {
kfree(buf);
return -EFAULT;
}
/* save last 12b value */
if (addr == 0x12b)
dec->reg12b_val = val;
return 0;
}
static int read_reg_fp(struct i2c_client *client, u16 addr, u16 *val)
{
struct go7007 *go = i2c_get_adapdata(client->adapter);
struct go7007_usb *usb;
int rc;
u8 *buf;
if (go == NULL)
return -ENODEV;
if (go->status == STATUS_SHUTDOWN)
return -EBUSY;
buf = kzalloc(16, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
memset(buf, 0xcd, 6);
usb = go->hpi_context;
if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
dev_info(&client->dev, "i2c lock failed\n");
kfree(buf);
return -EINTR;
}
rc = go7007_usb_vendor_request(go, 0x58, addr, 0, buf, 16, 1);
mutex_unlock(&usb->i2c_lock);
if (rc < 0) {
kfree(buf);
return rc;
}
*val = (buf[0] << 8) | buf[1];
kfree(buf);
return 0;
}
static int write_regs(struct i2c_client *client, u8 *regs)
{
int i;
for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
if (write_reg(client, regs[i], regs[i+1]) < 0) {
dev_info(&client->dev, "failed\n");
return -1;
}
}
return 0;
}
static int write_regs_fp(struct i2c_client *client, u16 *regs)
{
int i;
for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
if (write_reg_fp(client, regs[i], regs[i+1]) < 0) {
dev_info(&client->dev, "failed fp\n");
return -1;
}
}
return 0;
}
/* ------------------------------------------------------------------------- */
static int s2250_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output,
u32 config)
{
struct s2250 *state = to_state(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int vidsys;
vidsys = (state->std == V4L2_STD_NTSC) ? 0x01 : 0x00;
if (input == 0) {
/* composite */
write_reg_fp(client, 0x20, 0x020 | vidsys);
write_reg_fp(client, 0x21, 0x662);
write_reg_fp(client, 0x140, 0x060);
} else if (input == 1) {
/* S-Video */
write_reg_fp(client, 0x20, 0x040 | vidsys);
write_reg_fp(client, 0x21, 0x666);
write_reg_fp(client, 0x140, 0x060);
} else {
return -EINVAL;
}
state->input = input;
return 0;
}
static int s2250_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
{
struct s2250 *state = to_state(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
u16 vidsource;
vidsource = (state->input == 1) ? 0x040 : 0x020;
if (norm & V4L2_STD_625_50) {
write_regs_fp(client, vid_regs_fp);
write_regs_fp(client, vid_regs_fp_pal);
write_reg_fp(client, 0x20, vidsource);
} else {
write_regs_fp(client, vid_regs_fp);
write_reg_fp(client, 0x20, vidsource | 1);
}
state->std = norm;
return 0;
}
static int s2250_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct s2250 *state = container_of(ctrl->handler, struct s2250, hdl);
struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
u16 oldvalue;
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
read_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, &oldvalue);
write_reg_fp(client, VPX322_ADDR_BRIGHTNESS0,
ctrl->val | (oldvalue & ~0xff));
read_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, &oldvalue);
write_reg_fp(client, VPX322_ADDR_BRIGHTNESS1,
ctrl->val | (oldvalue & ~0xff));
write_reg_fp(client, 0x140, 0x60);
break;
case V4L2_CID_CONTRAST:
read_reg_fp(client, VPX322_ADDR_CONTRAST0, &oldvalue);
write_reg_fp(client, VPX322_ADDR_CONTRAST0,
ctrl->val | (oldvalue & ~0x3f));
read_reg_fp(client, VPX322_ADDR_CONTRAST1, &oldvalue);
write_reg_fp(client, VPX322_ADDR_CONTRAST1,
ctrl->val | (oldvalue & ~0x3f));
write_reg_fp(client, 0x140, 0x60);
break;
case V4L2_CID_SATURATION:
write_reg_fp(client, VPX322_ADDR_SAT, ctrl->val);
break;
case V4L2_CID_HUE:
write_reg_fp(client, VPX322_ADDR_HUE, ctrl->val);
break;
default:
return -EINVAL;
}
return 0;
}
static int s2250_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *format)
{
struct v4l2_mbus_framefmt *fmt = &format->format;
struct s2250 *state = to_state(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
if (format->pad)
return -EINVAL;
if (format->which == V4L2_SUBDEV_FORMAT_TRY)
return 0;
if (fmt->height < 640) {
write_reg_fp(client, 0x12b, state->reg12b_val | 0x400);
write_reg_fp(client, 0x140, 0x060);
} else {
write_reg_fp(client, 0x12b, state->reg12b_val & ~0x400);
write_reg_fp(client, 0x140, 0x060);
}
return 0;
}
static int s2250_s_audio_routing(struct v4l2_subdev *sd, u32 input, u32 output,
u32 config)
{
struct s2250 *state = to_state(sd);
switch (input) {
case 0:
write_reg(state->audio, 0x08, 0x02); /* Line In */
break;
case 1:
write_reg(state->audio, 0x08, 0x04); /* Mic */
break;
case 2:
write_reg(state->audio, 0x08, 0x05); /* Mic Boost */
break;
default:
return -EINVAL;
}
state->audio_input = input;
return 0;
}
static int s2250_log_status(struct v4l2_subdev *sd)
{
struct s2250 *state = to_state(sd);
v4l2_info(sd, "Standard: %s\n", state->std == V4L2_STD_NTSC ? "NTSC" :
state->std == V4L2_STD_PAL ? "PAL" :
state->std == V4L2_STD_SECAM ? "SECAM" :
"unknown");
v4l2_info(sd, "Input: %s\n", state->input == 0 ? "Composite" :
state->input == 1 ? "S-video" :
"error");
v4l2_info(sd, "Audio input: %s\n", state->audio_input == 0 ? "Line In" :
state->audio_input == 1 ? "Mic" :
state->audio_input == 2 ? "Mic Boost" :
"error");
return v4l2_ctrl_subdev_log_status(sd);
}
/* --------------------------------------------------------------------------*/
static const struct v4l2_ctrl_ops s2250_ctrl_ops = {
.s_ctrl = s2250_s_ctrl,
};
static const struct v4l2_subdev_core_ops s2250_core_ops = {
.log_status = s2250_log_status,
};
static const struct v4l2_subdev_audio_ops s2250_audio_ops = {
.s_routing = s2250_s_audio_routing,
};
static const struct v4l2_subdev_video_ops s2250_video_ops = {
.s_std = s2250_s_std,
.s_routing = s2250_s_video_routing,
};
static const struct v4l2_subdev_pad_ops s2250_pad_ops = {
.set_fmt = s2250_set_fmt,
};
static const struct v4l2_subdev_ops s2250_ops = {
.core = &s2250_core_ops,
.audio = &s2250_audio_ops,
.video = &s2250_video_ops,
.pad = &s2250_pad_ops,
};
/* --------------------------------------------------------------------------*/
static int s2250_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct i2c_client *audio;
struct i2c_adapter *adapter = client->adapter;
struct s2250 *state;
struct v4l2_subdev *sd;
u8 *data;
struct go7007 *go = i2c_get_adapdata(adapter);
struct go7007_usb *usb = go->hpi_context;
audio = i2c_new_dummy_device(adapter, TLV320_ADDRESS >> 1);
if (IS_ERR(audio))
return PTR_ERR(audio);
state = kzalloc(sizeof(struct s2250), GFP_KERNEL);
if (state == NULL) {
i2c_unregister_device(audio);
return -ENOMEM;
}
sd = &state->sd;
v4l2_i2c_subdev_init(sd, client, &s2250_ops);
v4l2_info(sd, "initializing %s at address 0x%x on %s\n",
"Sensoray 2250/2251", client->addr, client->adapter->name);
v4l2_ctrl_handler_init(&state->hdl, 4);
v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
V4L2_CID_CONTRAST, 0, 0x3f, 1, 0x32);
v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
V4L2_CID_SATURATION, 0, 4094, 1, 2070);
v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
V4L2_CID_HUE, -512, 511, 1, 0);
sd->ctrl_handler = &state->hdl;
if (state->hdl.error) {
int err = state->hdl.error;
v4l2_ctrl_handler_free(&state->hdl);
kfree(state);
return err;
}
state->std = V4L2_STD_NTSC;
state->brightness = 50;
state->contrast = 50;
state->saturation = 50;
state->hue = 0;
state->audio = audio;
/* initialize the audio */
if (write_regs(audio, aud_regs) < 0) {
dev_err(&client->dev, "error initializing audio\n");
goto fail;
}
if (write_regs(client, vid_regs) < 0) {
dev_err(&client->dev, "error initializing decoder\n");
goto fail;
}
if (write_regs_fp(client, vid_regs_fp) < 0) {
dev_err(&client->dev, "error initializing decoder\n");
goto fail;
}
/* set default channel */
/* composite */
write_reg_fp(client, 0x20, 0x020 | 1);
write_reg_fp(client, 0x21, 0x662);
write_reg_fp(client, 0x140, 0x060);
/* set default audio input */
state->audio_input = 0;
write_reg(client, 0x08, 0x02); /* Line In */
if (mutex_lock_interruptible(&usb->i2c_lock) == 0) {
data = kzalloc(16, GFP_KERNEL);
if (data != NULL) {
int rc = go7007_usb_vendor_request(go, 0x41, 0, 0,
data, 16, 1);
if (rc > 0) {
u8 mask;
data[0] = 0;
mask = 1<<5;
data[0] &= ~mask;
data[1] |= mask;
go7007_usb_vendor_request(go, 0x40, 0,
(data[1]<<8)
+ data[1],
data, 16, 0);
}
kfree(data);
}
mutex_unlock(&usb->i2c_lock);
}
v4l2_info(sd, "initialized successfully\n");
return 0;
fail:
i2c_unregister_device(audio);
v4l2_ctrl_handler_free(&state->hdl);
kfree(state);
return -EIO;
}
static int s2250_remove(struct i2c_client *client)
{
struct s2250 *state = to_state(i2c_get_clientdata(client));
i2c_unregister_device(state->audio);
v4l2_device_unregister_subdev(&state->sd);
v4l2_ctrl_handler_free(&state->hdl);
kfree(state);
return 0;
}
static const struct i2c_device_id s2250_id[] = {
{ "s2250", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, s2250_id);
static struct i2c_driver s2250_driver = {
.driver = {
.name = "s2250",
},
.probe = s2250_probe,
.remove = s2250_remove,
.id_table = s2250_id,
};
module_i2c_driver(s2250_driver);
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