// SPDX-License-Identifier: GPL-2.0-only
|
/*
|
* Copyright (C) 2005-2006 Micronas USA Inc.
|
*/
|
|
#include <linux/module.h>
|
#include <linux/delay.h>
|
#include <linux/sched.h>
|
#include <linux/spinlock.h>
|
#include <linux/unistd.h>
|
#include <linux/time.h>
|
#include <linux/mm.h>
|
#include <linux/vmalloc.h>
|
#include <linux/device.h>
|
#include <linux/i2c.h>
|
#include <linux/firmware.h>
|
#include <linux/mutex.h>
|
#include <linux/uaccess.h>
|
#include <linux/slab.h>
|
#include <linux/videodev2.h>
|
#include <media/tuner.h>
|
#include <media/v4l2-common.h>
|
#include <media/v4l2-event.h>
|
|
#include "go7007-priv.h"
|
|
/*
|
* Wait for an interrupt to be delivered from the GO7007SB and return
|
* the associated value and data.
|
*
|
* Must be called with the hw_lock held.
|
*/
|
int go7007_read_interrupt(struct go7007 *go, u16 *value, u16 *data)
|
{
|
go->interrupt_available = 0;
|
go->hpi_ops->read_interrupt(go);
|
if (wait_event_timeout(go->interrupt_waitq,
|
go->interrupt_available, 5*HZ) < 0) {
|
v4l2_err(&go->v4l2_dev, "timeout waiting for read interrupt\n");
|
return -1;
|
}
|
if (!go->interrupt_available)
|
return -1;
|
go->interrupt_available = 0;
|
*value = go->interrupt_value & 0xfffe;
|
*data = go->interrupt_data;
|
return 0;
|
}
|
EXPORT_SYMBOL(go7007_read_interrupt);
|
|
/*
|
* Read a register/address on the GO7007SB.
|
*
|
* Must be called with the hw_lock held.
|
*/
|
int go7007_read_addr(struct go7007 *go, u16 addr, u16 *data)
|
{
|
int count = 100;
|
u16 value;
|
|
if (go7007_write_interrupt(go, 0x0010, addr) < 0)
|
return -EIO;
|
while (count-- > 0) {
|
if (go7007_read_interrupt(go, &value, data) == 0 &&
|
value == 0xa000)
|
return 0;
|
}
|
return -EIO;
|
}
|
EXPORT_SYMBOL(go7007_read_addr);
|
|
/*
|
* Send the boot firmware to the encoder, which just wakes it up and lets
|
* us talk to the GPIO pins and on-board I2C adapter.
|
*
|
* Must be called with the hw_lock held.
|
*/
|
static int go7007_load_encoder(struct go7007 *go)
|
{
|
const struct firmware *fw_entry;
|
char fw_name[] = "go7007/go7007fw.bin";
|
void *bounce;
|
int fw_len, rv = 0;
|
u16 intr_val, intr_data;
|
|
if (go->boot_fw == NULL) {
|
if (request_firmware(&fw_entry, fw_name, go->dev)) {
|
v4l2_err(go, "unable to load firmware from file \"%s\"\n", fw_name);
|
return -1;
|
}
|
if (fw_entry->size < 16 || memcmp(fw_entry->data, "WISGO7007FW", 11)) {
|
v4l2_err(go, "file \"%s\" does not appear to be go7007 firmware\n", fw_name);
|
release_firmware(fw_entry);
|
return -1;
|
}
|
fw_len = fw_entry->size - 16;
|
bounce = kmemdup(fw_entry->data + 16, fw_len, GFP_KERNEL);
|
if (bounce == NULL) {
|
v4l2_err(go, "unable to allocate %d bytes for firmware transfer\n", fw_len);
|
release_firmware(fw_entry);
|
return -1;
|
}
|
release_firmware(fw_entry);
|
go->boot_fw_len = fw_len;
|
go->boot_fw = bounce;
|
}
|
if (go7007_interface_reset(go) < 0 ||
|
go7007_send_firmware(go, go->boot_fw, go->boot_fw_len) < 0 ||
|
go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
|
(intr_val & ~0x1) != 0x5a5a) {
|
v4l2_err(go, "error transferring firmware\n");
|
rv = -1;
|
}
|
return rv;
|
}
|
|
MODULE_FIRMWARE("go7007/go7007fw.bin");
|
|
/*
|
* Boot the encoder and register the I2C adapter if requested. Do the
|
* minimum initialization necessary, since the board-specific code may
|
* still need to probe the board ID.
|
*
|
* Must NOT be called with the hw_lock held.
|
*/
|
int go7007_boot_encoder(struct go7007 *go, int init_i2c)
|
{
|
int ret;
|
|
mutex_lock(&go->hw_lock);
|
ret = go7007_load_encoder(go);
|
mutex_unlock(&go->hw_lock);
|
if (ret < 0)
|
return -1;
|
if (!init_i2c)
|
return 0;
|
if (go7007_i2c_init(go) < 0)
|
return -1;
|
go->i2c_adapter_online = 1;
|
return 0;
|
}
|
EXPORT_SYMBOL(go7007_boot_encoder);
|
|
/*
|
* Configure any hardware-related registers in the GO7007, such as GPIO
|
* pins and bus parameters, which are board-specific. This assumes
|
* the boot firmware has already been downloaded.
|
*
|
* Must be called with the hw_lock held.
|
*/
|
static int go7007_init_encoder(struct go7007 *go)
|
{
|
if (go->board_info->audio_flags & GO7007_AUDIO_I2S_MASTER) {
|
go7007_write_addr(go, 0x1000, 0x0811);
|
go7007_write_addr(go, 0x1000, 0x0c11);
|
}
|
switch (go->board_id) {
|
case GO7007_BOARDID_MATRIX_REV:
|
/* Set GPIO pin 0 to be an output (audio clock control) */
|
go7007_write_addr(go, 0x3c82, 0x0001);
|
go7007_write_addr(go, 0x3c80, 0x00fe);
|
break;
|
case GO7007_BOARDID_ADLINK_MPG24:
|
/* set GPIO5 to be an output, currently low */
|
go7007_write_addr(go, 0x3c82, 0x0000);
|
go7007_write_addr(go, 0x3c80, 0x00df);
|
break;
|
case GO7007_BOARDID_ADS_USBAV_709:
|
/* GPIO pin 0: audio clock control */
|
/* pin 2: TW9906 reset */
|
/* pin 3: capture LED */
|
go7007_write_addr(go, 0x3c82, 0x000d);
|
go7007_write_addr(go, 0x3c80, 0x00f2);
|
break;
|
}
|
return 0;
|
}
|
|
/*
|
* Send the boot firmware to the GO7007 and configure the registers. This
|
* is the only way to stop the encoder once it has started streaming video.
|
*
|
* Must be called with the hw_lock held.
|
*/
|
int go7007_reset_encoder(struct go7007 *go)
|
{
|
if (go7007_load_encoder(go) < 0)
|
return -1;
|
return go7007_init_encoder(go);
|
}
|
|
/*
|
* Attempt to instantiate an I2C client by ID, probably loading a module.
|
*/
|
static int init_i2c_module(struct i2c_adapter *adapter, const struct go_i2c *const i2c)
|
{
|
struct go7007 *go = i2c_get_adapdata(adapter);
|
struct v4l2_device *v4l2_dev = &go->v4l2_dev;
|
struct v4l2_subdev *sd;
|
struct i2c_board_info info;
|
|
memset(&info, 0, sizeof(info));
|
strscpy(info.type, i2c->type, sizeof(info.type));
|
info.addr = i2c->addr;
|
info.flags = i2c->flags;
|
|
sd = v4l2_i2c_new_subdev_board(v4l2_dev, adapter, &info, NULL);
|
if (sd) {
|
if (i2c->is_video)
|
go->sd_video = sd;
|
if (i2c->is_audio)
|
go->sd_audio = sd;
|
return 0;
|
}
|
|
pr_info("go7007: probing for module i2c:%s failed\n", i2c->type);
|
return -EINVAL;
|
}
|
|
/*
|
* Detach and unregister the encoder. The go7007 struct won't be freed
|
* until v4l2 finishes releasing its resources and all associated fds are
|
* closed by applications.
|
*/
|
static void go7007_remove(struct v4l2_device *v4l2_dev)
|
{
|
struct go7007 *go = container_of(v4l2_dev, struct go7007, v4l2_dev);
|
|
v4l2_device_unregister(v4l2_dev);
|
if (go->hpi_ops->release)
|
go->hpi_ops->release(go);
|
if (go->i2c_adapter_online) {
|
i2c_del_adapter(&go->i2c_adapter);
|
go->i2c_adapter_online = 0;
|
}
|
|
kfree(go->boot_fw);
|
go7007_v4l2_remove(go);
|
kfree(go);
|
}
|
|
/*
|
* Finalize the GO7007 hardware setup, register the on-board I2C adapter
|
* (if used on this board), load the I2C client driver for the sensor
|
* (SAA7115 or whatever) and other devices, and register the ALSA and V4L2
|
* interfaces.
|
*
|
* Must NOT be called with the hw_lock held.
|
*/
|
int go7007_register_encoder(struct go7007 *go, unsigned num_i2c_devs)
|
{
|
int i, ret;
|
|
dev_info(go->dev, "go7007: registering new %s\n", go->name);
|
|
go->v4l2_dev.release = go7007_remove;
|
ret = v4l2_device_register(go->dev, &go->v4l2_dev);
|
if (ret < 0)
|
return ret;
|
|
mutex_lock(&go->hw_lock);
|
ret = go7007_init_encoder(go);
|
mutex_unlock(&go->hw_lock);
|
if (ret < 0)
|
return ret;
|
|
ret = go7007_v4l2_ctrl_init(go);
|
if (ret < 0)
|
return ret;
|
|
if (!go->i2c_adapter_online &&
|
go->board_info->flags & GO7007_BOARD_USE_ONBOARD_I2C) {
|
ret = go7007_i2c_init(go);
|
if (ret < 0)
|
return ret;
|
go->i2c_adapter_online = 1;
|
}
|
if (go->i2c_adapter_online) {
|
if (go->board_id == GO7007_BOARDID_ADS_USBAV_709) {
|
/* Reset the TW9906 */
|
go7007_write_addr(go, 0x3c82, 0x0009);
|
msleep(50);
|
go7007_write_addr(go, 0x3c82, 0x000d);
|
}
|
for (i = 0; i < num_i2c_devs; ++i)
|
init_i2c_module(&go->i2c_adapter, &go->board_info->i2c_devs[i]);
|
|
if (go->tuner_type >= 0) {
|
struct tuner_setup setup = {
|
.addr = ADDR_UNSET,
|
.type = go->tuner_type,
|
.mode_mask = T_ANALOG_TV,
|
};
|
|
v4l2_device_call_all(&go->v4l2_dev, 0, tuner,
|
s_type_addr, &setup);
|
}
|
if (go->board_id == GO7007_BOARDID_ADLINK_MPG24)
|
v4l2_subdev_call(go->sd_video, video, s_routing,
|
0, 0, go->channel_number + 1);
|
}
|
|
ret = go7007_v4l2_init(go);
|
if (ret < 0)
|
return ret;
|
|
if (go->board_info->flags & GO7007_BOARD_HAS_AUDIO) {
|
go->audio_enabled = 1;
|
go7007_snd_init(go);
|
}
|
return 0;
|
}
|
EXPORT_SYMBOL(go7007_register_encoder);
|
|
/*
|
* Send the encode firmware to the encoder, which will cause it
|
* to immediately start delivering the video and audio streams.
|
*
|
* Must be called with the hw_lock held.
|
*/
|
int go7007_start_encoder(struct go7007 *go)
|
{
|
u8 *fw;
|
int fw_len, rv = 0, i, x, y;
|
u16 intr_val, intr_data;
|
|
go->modet_enable = 0;
|
for (i = 0; i < 4; i++)
|
go->modet[i].enable = 0;
|
|
switch (v4l2_ctrl_g_ctrl(go->modet_mode)) {
|
case V4L2_DETECT_MD_MODE_GLOBAL:
|
memset(go->modet_map, 0, sizeof(go->modet_map));
|
go->modet[0].enable = 1;
|
go->modet_enable = 1;
|
break;
|
case V4L2_DETECT_MD_MODE_REGION_GRID:
|
for (y = 0; y < go->height / 16; y++) {
|
for (x = 0; x < go->width / 16; x++) {
|
int idx = y * go->width / 16 + x;
|
|
go->modet[go->modet_map[idx]].enable = 1;
|
}
|
}
|
go->modet_enable = 1;
|
break;
|
}
|
|
if (go->dvd_mode)
|
go->modet_enable = 0;
|
|
if (go7007_construct_fw_image(go, &fw, &fw_len) < 0)
|
return -1;
|
|
if (go7007_send_firmware(go, fw, fw_len) < 0 ||
|
go7007_read_interrupt(go, &intr_val, &intr_data) < 0) {
|
v4l2_err(&go->v4l2_dev, "error transferring firmware\n");
|
rv = -1;
|
goto start_error;
|
}
|
|
go->state = STATE_DATA;
|
go->parse_length = 0;
|
go->seen_frame = 0;
|
if (go7007_stream_start(go) < 0) {
|
v4l2_err(&go->v4l2_dev, "error starting stream transfer\n");
|
rv = -1;
|
goto start_error;
|
}
|
|
start_error:
|
kfree(fw);
|
return rv;
|
}
|
|
/*
|
* Store a byte in the current video buffer, if there is one.
|
*/
|
static inline void store_byte(struct go7007_buffer *vb, u8 byte)
|
{
|
if (vb && vb->vb.vb2_buf.planes[0].bytesused < GO7007_BUF_SIZE) {
|
u8 *ptr = vb2_plane_vaddr(&vb->vb.vb2_buf, 0);
|
|
ptr[vb->vb.vb2_buf.planes[0].bytesused++] = byte;
|
}
|
}
|
|
static void go7007_set_motion_regions(struct go7007 *go, struct go7007_buffer *vb,
|
u32 motion_regions)
|
{
|
if (motion_regions != go->modet_event_status) {
|
struct v4l2_event ev = {
|
.type = V4L2_EVENT_MOTION_DET,
|
.u.motion_det = {
|
.flags = V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ,
|
.frame_sequence = vb->vb.sequence,
|
.region_mask = motion_regions,
|
},
|
};
|
|
v4l2_event_queue(&go->vdev, &ev);
|
go->modet_event_status = motion_regions;
|
}
|
}
|
|
/*
|
* Determine regions with motion and send a motion detection event
|
* in case of changes.
|
*/
|
static void go7007_motion_regions(struct go7007 *go, struct go7007_buffer *vb)
|
{
|
u32 *bytesused = &vb->vb.vb2_buf.planes[0].bytesused;
|
unsigned motion[4] = { 0, 0, 0, 0 };
|
u32 motion_regions = 0;
|
unsigned stride = (go->width + 7) >> 3;
|
unsigned x, y;
|
int i;
|
|
for (i = 0; i < 216; ++i)
|
store_byte(vb, go->active_map[i]);
|
for (y = 0; y < go->height / 16; y++) {
|
for (x = 0; x < go->width / 16; x++) {
|
if (!(go->active_map[y * stride + (x >> 3)] & (1 << (x & 7))))
|
continue;
|
motion[go->modet_map[y * (go->width / 16) + x]]++;
|
}
|
}
|
motion_regions = ((motion[0] > 0) << 0) |
|
((motion[1] > 0) << 1) |
|
((motion[2] > 0) << 2) |
|
((motion[3] > 0) << 3);
|
*bytesused -= 216;
|
go7007_set_motion_regions(go, vb, motion_regions);
|
}
|
|
/*
|
* Deliver the last video buffer and get a new one to start writing to.
|
*/
|
static struct go7007_buffer *frame_boundary(struct go7007 *go, struct go7007_buffer *vb)
|
{
|
u32 *bytesused;
|
struct go7007_buffer *vb_tmp = NULL;
|
unsigned long flags;
|
|
if (vb == NULL) {
|
spin_lock_irqsave(&go->spinlock, flags);
|
if (!list_empty(&go->vidq_active))
|
vb = go->active_buf =
|
list_first_entry(&go->vidq_active, struct go7007_buffer, list);
|
spin_unlock_irqrestore(&go->spinlock, flags);
|
go->next_seq++;
|
return vb;
|
}
|
bytesused = &vb->vb.vb2_buf.planes[0].bytesused;
|
|
vb->vb.sequence = go->next_seq++;
|
if (vb->modet_active && *bytesused + 216 < GO7007_BUF_SIZE)
|
go7007_motion_regions(go, vb);
|
else
|
go7007_set_motion_regions(go, vb, 0);
|
|
vb->vb.vb2_buf.timestamp = ktime_get_ns();
|
vb_tmp = vb;
|
spin_lock_irqsave(&go->spinlock, flags);
|
list_del(&vb->list);
|
if (list_empty(&go->vidq_active))
|
vb = NULL;
|
else
|
vb = list_first_entry(&go->vidq_active,
|
struct go7007_buffer, list);
|
go->active_buf = vb;
|
spin_unlock_irqrestore(&go->spinlock, flags);
|
vb2_buffer_done(&vb_tmp->vb.vb2_buf, VB2_BUF_STATE_DONE);
|
return vb;
|
}
|
|
static void write_bitmap_word(struct go7007 *go)
|
{
|
int x, y, i, stride = ((go->width >> 4) + 7) >> 3;
|
|
for (i = 0; i < 16; ++i) {
|
y = (((go->parse_length - 1) << 3) + i) / (go->width >> 4);
|
x = (((go->parse_length - 1) << 3) + i) % (go->width >> 4);
|
if (stride * y + (x >> 3) < sizeof(go->active_map))
|
go->active_map[stride * y + (x >> 3)] |=
|
(go->modet_word & 1) << (x & 0x7);
|
go->modet_word >>= 1;
|
}
|
}
|
|
/*
|
* Parse a chunk of the video stream into frames. The frames are not
|
* delimited by the hardware, so we have to parse the frame boundaries
|
* based on the type of video stream we're receiving.
|
*/
|
void go7007_parse_video_stream(struct go7007 *go, u8 *buf, int length)
|
{
|
struct go7007_buffer *vb = go->active_buf;
|
int i, seq_start_code = -1, gop_start_code = -1, frame_start_code = -1;
|
|
switch (go->format) {
|
case V4L2_PIX_FMT_MPEG4:
|
seq_start_code = 0xB0;
|
gop_start_code = 0xB3;
|
frame_start_code = 0xB6;
|
break;
|
case V4L2_PIX_FMT_MPEG1:
|
case V4L2_PIX_FMT_MPEG2:
|
seq_start_code = 0xB3;
|
gop_start_code = 0xB8;
|
frame_start_code = 0x00;
|
break;
|
}
|
|
for (i = 0; i < length; ++i) {
|
if (vb && vb->vb.vb2_buf.planes[0].bytesused >=
|
GO7007_BUF_SIZE - 3) {
|
v4l2_info(&go->v4l2_dev, "dropping oversized frame\n");
|
vb->vb.vb2_buf.planes[0].bytesused = 0;
|
vb->frame_offset = 0;
|
vb->modet_active = 0;
|
vb = go->active_buf = NULL;
|
}
|
|
switch (go->state) {
|
case STATE_DATA:
|
switch (buf[i]) {
|
case 0x00:
|
go->state = STATE_00;
|
break;
|
case 0xFF:
|
go->state = STATE_FF;
|
break;
|
default:
|
store_byte(vb, buf[i]);
|
break;
|
}
|
break;
|
case STATE_00:
|
switch (buf[i]) {
|
case 0x00:
|
go->state = STATE_00_00;
|
break;
|
case 0xFF:
|
store_byte(vb, 0x00);
|
go->state = STATE_FF;
|
break;
|
default:
|
store_byte(vb, 0x00);
|
store_byte(vb, buf[i]);
|
go->state = STATE_DATA;
|
break;
|
}
|
break;
|
case STATE_00_00:
|
switch (buf[i]) {
|
case 0x00:
|
store_byte(vb, 0x00);
|
/* go->state remains STATE_00_00 */
|
break;
|
case 0x01:
|
go->state = STATE_00_00_01;
|
break;
|
case 0xFF:
|
store_byte(vb, 0x00);
|
store_byte(vb, 0x00);
|
go->state = STATE_FF;
|
break;
|
default:
|
store_byte(vb, 0x00);
|
store_byte(vb, 0x00);
|
store_byte(vb, buf[i]);
|
go->state = STATE_DATA;
|
break;
|
}
|
break;
|
case STATE_00_00_01:
|
if (buf[i] == 0xF8 && go->modet_enable == 0) {
|
/* MODET start code, but MODET not enabled */
|
store_byte(vb, 0x00);
|
store_byte(vb, 0x00);
|
store_byte(vb, 0x01);
|
store_byte(vb, 0xF8);
|
go->state = STATE_DATA;
|
break;
|
}
|
/* If this is the start of a new MPEG frame,
|
* get a new buffer */
|
if ((go->format == V4L2_PIX_FMT_MPEG1 ||
|
go->format == V4L2_PIX_FMT_MPEG2 ||
|
go->format == V4L2_PIX_FMT_MPEG4) &&
|
(buf[i] == seq_start_code ||
|
buf[i] == gop_start_code ||
|
buf[i] == frame_start_code)) {
|
if (vb == NULL || go->seen_frame)
|
vb = frame_boundary(go, vb);
|
go->seen_frame = buf[i] == frame_start_code;
|
if (vb && go->seen_frame)
|
vb->frame_offset =
|
vb->vb.vb2_buf.planes[0].bytesused;
|
}
|
/* Handle any special chunk types, or just write the
|
* start code to the (potentially new) buffer */
|
switch (buf[i]) {
|
case 0xF5: /* timestamp */
|
go->parse_length = 12;
|
go->state = STATE_UNPARSED;
|
break;
|
case 0xF6: /* vbi */
|
go->state = STATE_VBI_LEN_A;
|
break;
|
case 0xF8: /* MD map */
|
go->parse_length = 0;
|
memset(go->active_map, 0,
|
sizeof(go->active_map));
|
go->state = STATE_MODET_MAP;
|
break;
|
case 0xFF: /* Potential JPEG start code */
|
store_byte(vb, 0x00);
|
store_byte(vb, 0x00);
|
store_byte(vb, 0x01);
|
go->state = STATE_FF;
|
break;
|
default:
|
store_byte(vb, 0x00);
|
store_byte(vb, 0x00);
|
store_byte(vb, 0x01);
|
store_byte(vb, buf[i]);
|
go->state = STATE_DATA;
|
break;
|
}
|
break;
|
case STATE_FF:
|
switch (buf[i]) {
|
case 0x00:
|
store_byte(vb, 0xFF);
|
go->state = STATE_00;
|
break;
|
case 0xFF:
|
store_byte(vb, 0xFF);
|
/* go->state remains STATE_FF */
|
break;
|
case 0xD8:
|
if (go->format == V4L2_PIX_FMT_MJPEG)
|
vb = frame_boundary(go, vb);
|
fallthrough;
|
default:
|
store_byte(vb, 0xFF);
|
store_byte(vb, buf[i]);
|
go->state = STATE_DATA;
|
break;
|
}
|
break;
|
case STATE_VBI_LEN_A:
|
go->parse_length = buf[i] << 8;
|
go->state = STATE_VBI_LEN_B;
|
break;
|
case STATE_VBI_LEN_B:
|
go->parse_length |= buf[i];
|
if (go->parse_length > 0)
|
go->state = STATE_UNPARSED;
|
else
|
go->state = STATE_DATA;
|
break;
|
case STATE_MODET_MAP:
|
if (go->parse_length < 204) {
|
if (go->parse_length & 1) {
|
go->modet_word |= buf[i];
|
write_bitmap_word(go);
|
} else
|
go->modet_word = buf[i] << 8;
|
} else if (go->parse_length == 207 && vb) {
|
vb->modet_active = buf[i];
|
}
|
if (++go->parse_length == 208)
|
go->state = STATE_DATA;
|
break;
|
case STATE_UNPARSED:
|
if (--go->parse_length == 0)
|
go->state = STATE_DATA;
|
break;
|
}
|
}
|
}
|
EXPORT_SYMBOL(go7007_parse_video_stream);
|
|
/*
|
* Allocate a new go7007 struct. Used by the hardware-specific probe.
|
*/
|
struct go7007 *go7007_alloc(const struct go7007_board_info *board,
|
struct device *dev)
|
{
|
struct go7007 *go;
|
|
go = kzalloc(sizeof(struct go7007), GFP_KERNEL);
|
if (go == NULL)
|
return NULL;
|
go->dev = dev;
|
go->board_info = board;
|
go->tuner_type = -1;
|
mutex_init(&go->hw_lock);
|
init_waitqueue_head(&go->frame_waitq);
|
spin_lock_init(&go->spinlock);
|
go->status = STATUS_INIT;
|
init_waitqueue_head(&go->interrupt_waitq);
|
go7007_update_board(go);
|
go->format = V4L2_PIX_FMT_MJPEG;
|
go->bitrate = 1500000;
|
go->fps_scale = 1;
|
go->aspect_ratio = GO7007_RATIO_1_1;
|
|
return go;
|
}
|
EXPORT_SYMBOL(go7007_alloc);
|
|
void go7007_update_board(struct go7007 *go)
|
{
|
const struct go7007_board_info *board = go->board_info;
|
|
if (board->sensor_flags & GO7007_SENSOR_TV) {
|
go->standard = GO7007_STD_NTSC;
|
go->std = V4L2_STD_NTSC_M;
|
go->width = 720;
|
go->height = 480;
|
go->sensor_framerate = 30000;
|
} else {
|
go->standard = GO7007_STD_OTHER;
|
go->width = board->sensor_width;
|
go->height = board->sensor_height;
|
go->sensor_framerate = board->sensor_framerate;
|
}
|
go->encoder_v_offset = board->sensor_v_offset;
|
go->encoder_h_offset = board->sensor_h_offset;
|
}
|
EXPORT_SYMBOL(go7007_update_board);
|
|
MODULE_LICENSE("GPL v2");
|
