Commit 8b2f0795 authored by Devin Heitmueller's avatar Devin Heitmueller Committed by Mauro Carvalho Chehab

V4L/DVB (11066): au0828: add support for analog functionality in bridge

Add support for the analog functionality found in the au0828 bridge

Thanks to Michael Krufky <mkrufky@linuxtv.org> and Steven Toth
<stoth@linuxtv.org> for providing sample hardware, engineering level support,
and testing.
Signed-off-by: default avatarDevin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: default avatarMichael Krufky <mkrufky@linuxtv.org>
[mchehab@redhat.com: fix compilation by adding linux/version.h]
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 968cf782
au0828-objs := au0828-core.o au0828-i2c.o au0828-cards.o au0828-dvb.o au0828-objs := au0828-core.o au0828-i2c.o au0828-cards.o au0828-dvb.o au0828-video.o
obj-$(CONFIG_VIDEO_AU0828) += au0828.o obj-$(CONFIG_VIDEO_AU0828) += au0828.o
......
...@@ -21,6 +21,18 @@ ...@@ -21,6 +21,18 @@
#include "au0828.h" #include "au0828.h"
#include "au0828-cards.h" #include "au0828-cards.h"
#include "au8522.h"
void hvr950q_cs5340_audio(void *priv, int enable)
{
/* Because the HVR-950q shares an i2s bus between the cs5340 and the
au8522, we need to hold cs5340 in reset when using the au8522 */
struct au0828_dev *dev = priv;
if (enable == 1)
au0828_set(dev, REG_000, 0x10);
else
au0828_clear(dev, REG_000, 0x10);
}
struct au0828_board au0828_boards[] = { struct au0828_board au0828_boards[] = {
[AU0828_BOARD_UNKNOWN] = { [AU0828_BOARD_UNKNOWN] = {
...@@ -31,6 +43,25 @@ struct au0828_board au0828_boards[] = { ...@@ -31,6 +43,25 @@ struct au0828_board au0828_boards[] = {
}, },
[AU0828_BOARD_HAUPPAUGE_HVR950Q] = { [AU0828_BOARD_HAUPPAUGE_HVR950Q] = {
.name = "Hauppauge HVR950Q", .name = "Hauppauge HVR950Q",
.input = {
{
.type = AU0828_VMUX_TELEVISION,
.vmux = AU8522_COMPOSITE_CH4_SIF,
.amux = AU8522_AUDIO_SIF,
},
{
.type = AU0828_VMUX_COMPOSITE,
.vmux = AU8522_COMPOSITE_CH1,
.amux = AU8522_AUDIO_NONE,
.audio_setup = hvr950q_cs5340_audio,
},
{
.type = AU0828_VMUX_SVIDEO,
.vmux = AU8522_SVIDEO_CH13,
.amux = AU8522_AUDIO_NONE,
.audio_setup = hvr950q_cs5340_audio,
},
},
}, },
[AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL] = { [AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL] = {
.name = "Hauppauge HVR950Q rev xxF8", .name = "Hauppauge HVR950Q rev xxF8",
...@@ -144,21 +175,23 @@ void au0828_gpio_setup(struct au0828_dev *dev) ...@@ -144,21 +175,23 @@ void au0828_gpio_setup(struct au0828_dev *dev)
* 4 - CS5340 * 4 - CS5340
* 5 - AU8522 Demodulator * 5 - AU8522 Demodulator
* 6 - eeprom W/P * 6 - eeprom W/P
* 7 - power supply
* 9 - XC5000 Tuner * 9 - XC5000 Tuner
*/ */
/* Into reset */ /* Into reset */
au0828_write(dev, REG_003, 0x02); au0828_write(dev, REG_003, 0x02);
au0828_write(dev, REG_002, 0x88 | 0x20); au0828_write(dev, REG_002, 0x80 | 0x20 | 0x10);
au0828_write(dev, REG_001, 0x0); au0828_write(dev, REG_001, 0x0);
au0828_write(dev, REG_000, 0x0); au0828_write(dev, REG_000, 0x0);
msleep(100); msleep(100);
/* Out of reset */ /* Out of reset (leave the cs5340 in reset until needed) */
au0828_write(dev, REG_003, 0x02); au0828_write(dev, REG_003, 0x02);
au0828_write(dev, REG_001, 0x02); au0828_write(dev, REG_001, 0x02);
au0828_write(dev, REG_002, 0x88 | 0x20); au0828_write(dev, REG_002, 0x80 | 0x20 | 0x10);
au0828_write(dev, REG_000, 0x88 | 0x20 | 0x40); au0828_write(dev, REG_000, 0x80 | 0x40 | 0x20);
msleep(250); msleep(250);
break; break;
case AU0828_BOARD_DVICO_FUSIONHDTV7: case AU0828_BOARD_DVICO_FUSIONHDTV7:
......
...@@ -146,6 +146,8 @@ static void au0828_usb_disconnect(struct usb_interface *interface) ...@@ -146,6 +146,8 @@ static void au0828_usb_disconnect(struct usb_interface *interface)
/* Digital TV */ /* Digital TV */
au0828_dvb_unregister(dev); au0828_dvb_unregister(dev);
au0828_analog_unregister(dev);
/* I2C */ /* I2C */
au0828_i2c_unregister(dev); au0828_i2c_unregister(dev);
...@@ -162,9 +164,11 @@ static void au0828_usb_disconnect(struct usb_interface *interface) ...@@ -162,9 +164,11 @@ static void au0828_usb_disconnect(struct usb_interface *interface)
static int au0828_usb_probe(struct usb_interface *interface, static int au0828_usb_probe(struct usb_interface *interface,
const struct usb_device_id *id) const struct usb_device_id *id)
{ {
int ifnum; int ifnum, i;
struct au0828_dev *dev; struct au0828_dev *dev;
struct usb_device *usbdev = interface_to_usbdev(interface); struct usb_device *usbdev = interface_to_usbdev(interface);
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *endpoint;
ifnum = interface->altsetting->desc.bInterfaceNumber; ifnum = interface->altsetting->desc.bInterfaceNumber;
...@@ -189,6 +193,30 @@ static int au0828_usb_probe(struct usb_interface *interface, ...@@ -189,6 +193,30 @@ static int au0828_usb_probe(struct usb_interface *interface,
usb_set_intfdata(interface, dev); usb_set_intfdata(interface, dev);
/* set au0828 usb interface0 to as5 */
usb_set_interface(usbdev,
interface->cur_altsetting->desc.bInterfaceNumber, 5);
/* Figure out which endpoint has the isoc interface */
iface_desc = interface->cur_altsetting;
for(i = 0; i < iface_desc->desc.bNumEndpoints; i++){
endpoint = &iface_desc->endpoint[i].desc;
if(((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) &&
((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_ISOC)){
/* we find our isoc in endpoint */
u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
dev->max_pkt_size = (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
}
}
if(!(dev->isoc_in_endpointaddr)) {
printk("Could not locate isoc endpoint\n");
kfree(dev);
return -ENODEV;
}
/* Power Up the bridge */ /* Power Up the bridge */
au0828_write(dev, REG_600, 1 << 4); au0828_write(dev, REG_600, 1 << 4);
...@@ -201,6 +229,9 @@ static int au0828_usb_probe(struct usb_interface *interface, ...@@ -201,6 +229,9 @@ static int au0828_usb_probe(struct usb_interface *interface,
/* Setup */ /* Setup */
au0828_card_setup(dev); au0828_card_setup(dev);
/* Analog TV */
au0828_analog_register(dev);
/* Digital TV */ /* Digital TV */
au0828_dvb_register(dev); au0828_dvb_register(dev);
......
...@@ -27,6 +27,9 @@ ...@@ -27,6 +27,9 @@
#define REG_002 0x002 #define REG_002 0x002
#define REG_003 0x003 #define REG_003 0x003
#define AU0828_SENSORCTRL_100 0x100
#define AU0828_SENSORCTRL_VBI_103 0x103
#define REG_200 0x200 #define REG_200 0x200
#define REG_201 0x201 #define REG_201 0x201
#define REG_202 0x202 #define REG_202 0x202
...@@ -35,4 +38,7 @@ ...@@ -35,4 +38,7 @@
#define REG_209 0x209 #define REG_209 0x209
#define REG_2FF 0x2ff #define REG_2FF 0x2ff
/* Audio registers */
#define AU0828_AUDIOCTRL_50C 0x50C
#define REG_600 0x600 #define REG_600 0x600
/*
* Auvitek AU0828 USB Bridge (Analog video support)
*
* Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
* Copyright (C) 2005-2008 Auvitek International, Ltd.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* As published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/* Developer Notes:
*
* VBI support is not yet working
* The hardware scaler supported is unimplemented
* AC97 audio support is unimplemented (only i2s audio mode)
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/suspend.h>
#include <linux/version.h>
#include <linux/videodev.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-chip-ident.h>
#include <media/tuner.h>
#include "au0828.h"
#include "au0828-reg.h"
static LIST_HEAD(au0828_devlist);
static DEFINE_MUTEX(au0828_sysfs_lock);
#define AU0828_VERSION_CODE KERNEL_VERSION(0, 0, 1)
/* Forward declarations */
void au0828_analog_stream_reset(struct au0828_dev *dev);
/* ------------------------------------------------------------------
Videobuf operations
------------------------------------------------------------------*/
static unsigned int isoc_debug;
module_param(isoc_debug, int, 0644);
MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
#define au0828_isocdbg(fmt, arg...) \
do {\
if (isoc_debug) { \
printk(KERN_INFO "au0828 %s :"fmt, \
__func__ , ##arg); \
} \
} while (0)
static inline void print_err_status(struct au0828_dev *dev,
int packet, int status)
{
char *errmsg = "Unknown";
switch (status) {
case -ENOENT:
errmsg = "unlinked synchronuously";
break;
case -ECONNRESET:
errmsg = "unlinked asynchronuously";
break;
case -ENOSR:
errmsg = "Buffer error (overrun)";
break;
case -EPIPE:
errmsg = "Stalled (device not responding)";
break;
case -EOVERFLOW:
errmsg = "Babble (bad cable?)";
break;
case -EPROTO:
errmsg = "Bit-stuff error (bad cable?)";
break;
case -EILSEQ:
errmsg = "CRC/Timeout (could be anything)";
break;
case -ETIME:
errmsg = "Device does not respond";
break;
}
if (packet < 0) {
au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
} else {
au0828_isocdbg("URB packet %d, status %d [%s].\n",
packet, status, errmsg);
}
}
static int check_dev(struct au0828_dev *dev)
{
if (dev->dev_state & DEV_DISCONNECTED) {
printk("v4l2 ioctl: device not present\n");
return -ENODEV;
}
if (dev->dev_state & DEV_MISCONFIGURED) {
printk("v4l2 ioctl: device is misconfigured; "
"close and open it again\n");
return -EIO;
}
return 0;
}
/*
* IRQ callback, called by URB callback
*/
static void au0828_irq_callback(struct urb *urb)
{
struct au0828_dmaqueue *dma_q = urb->context;
struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
int rc, i;
switch (urb->status) {
case 0: /* success */
case -ETIMEDOUT: /* NAK */
break;
case -ECONNRESET: /* kill */
case -ENOENT:
case -ESHUTDOWN:
au0828_isocdbg("au0828_irq_callback called: status kill\n");
return;
default: /* unknown error */
au0828_isocdbg("urb completition error %d.\n", urb->status);
break;
}
/* Copy data from URB */
spin_lock(&dev->slock);
rc = dev->isoc_ctl.isoc_copy(dev, urb);
spin_unlock(&dev->slock);
/* Reset urb buffers */
for (i = 0; i < urb->number_of_packets; i++) {
urb->iso_frame_desc[i].status = 0;
urb->iso_frame_desc[i].actual_length = 0;
}
urb->status = 0;
urb->status = usb_submit_urb(urb, GFP_ATOMIC);
if (urb->status) {
au0828_isocdbg("urb resubmit failed (error=%i)\n",
urb->status);
}
}
/*
* Stop and Deallocate URBs
*/
void au0828_uninit_isoc(struct au0828_dev *dev)
{
struct urb *urb;
int i;
au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
dev->isoc_ctl.nfields = -1;
for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
urb = dev->isoc_ctl.urb[i];
if (urb) {
if (!irqs_disabled())
usb_kill_urb(urb);
else
usb_unlink_urb(urb);
if (dev->isoc_ctl.transfer_buffer[i]) {
usb_buffer_free(dev->usbdev,
urb->transfer_buffer_length,
dev->isoc_ctl.transfer_buffer[i],
urb->transfer_dma);
}
usb_free_urb(urb);
dev->isoc_ctl.urb[i] = NULL;
}
dev->isoc_ctl.transfer_buffer[i] = NULL;
}
kfree(dev->isoc_ctl.urb);
kfree(dev->isoc_ctl.transfer_buffer);
dev->isoc_ctl.urb = NULL;
dev->isoc_ctl.transfer_buffer = NULL;
dev->isoc_ctl.num_bufs = 0;
}
/*
* Allocate URBs and start IRQ
*/
int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
int num_bufs, int max_pkt_size,
int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
{
struct au0828_dmaqueue *dma_q = &dev->vidq;
int i;
int sb_size, pipe;
struct urb *urb;
int j, k;
int rc;
au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
/* De-allocates all pending stuff */
au0828_uninit_isoc(dev);
dev->isoc_ctl.isoc_copy = isoc_copy;
dev->isoc_ctl.num_bufs = num_bufs;
dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);
if (!dev->isoc_ctl.urb) {
au0828_isocdbg("cannot alloc memory for usb buffers\n");
return -ENOMEM;
}
dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs,
GFP_KERNEL);
if (!dev->isoc_ctl.transfer_buffer) {
au0828_isocdbg("cannot allocate memory for usb transfer\n");
kfree(dev->isoc_ctl.urb);
return -ENOMEM;
}
dev->isoc_ctl.max_pkt_size = max_pkt_size;
dev->isoc_ctl.buf = NULL;
sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
/* allocate urbs and transfer buffers */
for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
urb = usb_alloc_urb(max_packets, GFP_KERNEL);
if (!urb) {
au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i);
au0828_uninit_isoc(dev);
return -ENOMEM;
}
dev->isoc_ctl.urb[i] = urb;
dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->usbdev,
sb_size, GFP_KERNEL, &urb->transfer_dma);
if (!dev->isoc_ctl.transfer_buffer[i]) {
printk("unable to allocate %i bytes for transfer"
" buffer %i%s\n",
sb_size, i,
in_interrupt() ? " while in int" : "");
au0828_uninit_isoc(dev);
return -ENOMEM;
}
memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
pipe = usb_rcvisocpipe(dev->usbdev,
dev->isoc_in_endpointaddr),
usb_fill_int_urb(urb, dev->usbdev, pipe,
dev->isoc_ctl.transfer_buffer[i], sb_size,
au0828_irq_callback, dma_q, 1);
urb->number_of_packets = max_packets;
urb->transfer_flags = URB_ISO_ASAP;
k = 0;
for (j = 0; j < max_packets; j++) {
urb->iso_frame_desc[j].offset = k;
urb->iso_frame_desc[j].length =
dev->isoc_ctl.max_pkt_size;
k += dev->isoc_ctl.max_pkt_size;
}
}
init_waitqueue_head(&dma_q->wq);
/* submit urbs and enables IRQ */
for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
if (rc) {
au0828_isocdbg("submit of urb %i failed (error=%i)\n",
i, rc);
au0828_uninit_isoc(dev);
return rc;
}
}
return 0;
}
/*
* Announces that a buffer were filled and request the next
*/
static inline void buffer_filled(struct au0828_dev *dev,
struct au0828_dmaqueue *dma_q,
struct au0828_buffer *buf)
{
/* Advice that buffer was filled */
au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
buf->vb.state = VIDEOBUF_DONE;
buf->vb.field_count++;
do_gettimeofday(&buf->vb.ts);
dev->isoc_ctl.buf = NULL;
list_del(&buf->vb.queue);
wake_up(&buf->vb.done);
}
/*
* Identify the buffer header type and properly handles
*/
static void au0828_copy_video(struct au0828_dev *dev,
struct au0828_dmaqueue *dma_q,
struct au0828_buffer *buf,
unsigned char *p,
unsigned char *outp, unsigned long len)
{
void *fieldstart, *startwrite, *startread;
int linesdone, currlinedone, offset, lencopy, remain;
int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
if (dma_q->pos + len > buf->vb.size)
len = buf->vb.size - dma_q->pos;
startread = p;
remain = len;
/* Interlaces frame */
if (buf->top_field)
fieldstart = outp;
else
fieldstart = outp + bytesperline;
linesdone = dma_q->pos / bytesperline;
currlinedone = dma_q->pos % bytesperline;
offset = linesdone * bytesperline * 2 + currlinedone;
startwrite = fieldstart + offset;
lencopy = bytesperline - currlinedone;
lencopy = lencopy > remain ? remain : lencopy;
if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) {
au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
((char *)startwrite + lencopy) -
((char *)outp + buf->vb.size));
remain = (char *)outp + buf->vb.size - (char *)startwrite;
lencopy = remain;
}
if (lencopy <= 0)
return;
memcpy(startwrite, startread, lencopy);
remain -= lencopy;
while (remain > 0) {
startwrite += lencopy + bytesperline;
startread += lencopy;
if (bytesperline > remain)
lencopy = remain;
else
lencopy = bytesperline;
if ((char *)startwrite + lencopy > (char *)outp +
buf->vb.size) {
au0828_isocdbg("Overflow of %zi bytes past buffer end (2)\n",
((char *)startwrite + lencopy) -
((char *)outp + buf->vb.size));
lencopy = remain = (char *)outp + buf->vb.size -
(char *)startwrite;
}
if (lencopy <= 0)
break;
memcpy(startwrite, startread, lencopy);
remain -= lencopy;
}
if (offset > 1440) {
/* We have enough data to check for greenscreen */
if (outp[0] < 0x60 && outp[1440] < 0x60) {
dev->greenscreen_detected = 1;
}
}
dma_q->pos += len;
}
/*
* video-buf generic routine to get the next available buffer
*/
static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
struct au0828_buffer **buf)
{
struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
if (list_empty(&dma_q->active)) {
au0828_isocdbg("No active queue to serve\n");
dev->isoc_ctl.buf = NULL;
*buf = NULL;
return;
}
/* Get the next buffer */
*buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue);
dev->isoc_ctl.buf = *buf;
return;
}
/*
* Controls the isoc copy of each urb packet
*/
static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
{
struct au0828_buffer *buf;
struct au0828_dmaqueue *dma_q = urb->context;
unsigned char *outp = NULL;
int i, len = 0, rc = 1;
unsigned char *p;
unsigned char fbyte;
if (!dev)
return 0;
if ((dev->dev_state & DEV_DISCONNECTED) ||
(dev->dev_state & DEV_MISCONFIGURED))
return 0;
if (urb->status < 0) {
print_err_status(dev, -1, urb->status);
if (urb->status == -ENOENT)
return 0;
}
buf = dev->isoc_ctl.buf;
if (buf != NULL)
outp = videobuf_to_vmalloc(&buf->vb);
for (i = 0; i < urb->number_of_packets; i++) {
int status = urb->iso_frame_desc[i].status;
if (status < 0) {
print_err_status(dev, i, status);
if (urb->iso_frame_desc[i].status != -EPROTO)
continue;
}
if (urb->iso_frame_desc[i].actual_length <= 0) {
continue;
}
if (urb->iso_frame_desc[i].actual_length >
dev->max_pkt_size) {
au0828_isocdbg("packet bigger than packet size");
continue;
}
p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
fbyte = p[0];
len = urb->iso_frame_desc[i].actual_length - 4;
p += 4;
if (fbyte & 0x80) {
len -= 4;
p += 4;
au0828_isocdbg("Video frame %s\n",
(fbyte & 0x40) ? "odd" : "even");
if (!(fbyte & 0x40)) {
if (buf != NULL)
buffer_filled(dev, dma_q, buf);
get_next_buf(dma_q, &buf);
if (buf == NULL) {
outp = NULL;
} else
outp = videobuf_to_vmalloc(&buf->vb);
}
if (buf != NULL) {
if (fbyte & 0x40) {
buf->top_field = 1;
} else {
buf->top_field = 0;
}
}
dma_q->pos = 0;
}
if (buf != NULL) {
au0828_copy_video(dev, dma_q, buf, p, outp, len);
}
}
return rc;
}
static int
buffer_setup(struct videobuf_queue *vq, unsigned int *count,
unsigned int *size)
{
struct au0828_fh *fh = vq->priv_data;
*size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
if (0 == *count)
*count = AU0828_DEF_BUF;
if (*count < AU0828_MIN_BUF)
*count = AU0828_MIN_BUF;
return 0;
}
/* This is called *without* dev->slock held; please keep it that way */
static void free_buffer(struct videobuf_queue *vq, struct au0828_buffer *buf)
{
struct au0828_fh *fh = vq->priv_data;
struct au0828_dev *dev = fh->dev;
unsigned long flags = 0;
if (in_interrupt())
BUG();
/* We used to wait for the buffer to finish here, but this didn't work
because, as we were keeping the state as VIDEOBUF_QUEUED,
videobuf_queue_cancel marked it as finished for us.
(Also, it could wedge forever if the hardware was misconfigured.)
This should be safe; by the time we get here, the buffer isn't
queued anymore. If we ever start marking the buffers as
VIDEOBUF_ACTIVE, it won't be, though.
*/
spin_lock_irqsave(&dev->slock, flags);
if (dev->isoc_ctl.buf == buf)
dev->isoc_ctl.buf = NULL;
spin_unlock_irqrestore(&dev->slock, flags);
videobuf_vmalloc_free(&buf->vb);
buf->vb.state = VIDEOBUF_NEEDS_INIT;
}
static int
buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
enum v4l2_field field)
{
struct au0828_fh *fh = vq->priv_data;
struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
struct au0828_dev *dev = fh->dev;
int rc = 0, urb_init = 0;
buf->vb.size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3;
if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
return -EINVAL;
buf->vb.width = dev->width;
buf->vb.height = dev->height;
buf->vb.field = field;
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
rc = videobuf_iolock(vq, &buf->vb, NULL);
if (rc < 0) {
printk("videobuf_iolock failed\n");
goto fail;
}
}
if (!dev->isoc_ctl.num_bufs)
urb_init = 1;
if (urb_init) {
rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
au0828_isoc_copy);
if (rc < 0) {
printk("au0828_init_isoc failed\n");
goto fail;
}
}
buf->vb.state = VIDEOBUF_PREPARED;
return 0;
fail:
free_buffer(vq, buf);
return rc;
}
static void
buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
{
struct au0828_buffer *buf = container_of(vb,
struct au0828_buffer,
vb);
struct au0828_fh *fh = vq->priv_data;
struct au0828_dev *dev = fh->dev;
struct au0828_dmaqueue *vidq = &dev->vidq;
buf->vb.state = VIDEOBUF_QUEUED;
list_add_tail(&buf->vb.queue, &vidq->active);
}
static void buffer_release(struct videobuf_queue *vq,
struct videobuf_buffer *vb)
{
struct au0828_buffer *buf = container_of(vb,
struct au0828_buffer,
vb);
free_buffer(vq, buf);
}
static struct videobuf_queue_ops au0828_video_qops = {
.buf_setup = buffer_setup,
.buf_prepare = buffer_prepare,
.buf_queue = buffer_queue,
.buf_release = buffer_release,
};
/* ------------------------------------------------------------------
V4L2 interface
------------------------------------------------------------------*/
static int au0828_i2s_init(struct au0828_dev *dev)
{
/* Enable i2s mode */
au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
return 0;
}
/*
* Auvitek au0828 analog stream enable
* Please set interface0 to AS5 before enable the stream
*/
int au0828_analog_stream_enable(struct au0828_dev *d)
{
dprintk(1, "au0828_analog_stream_enable called\n");
au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
au0828_writereg(d, 0x106, 0x00);
/* set x position */
au0828_writereg(d, 0x110, 0x00);
au0828_writereg(d, 0x111, 0x00);
au0828_writereg(d, 0x114, 0xa0);
au0828_writereg(d, 0x115, 0x05);
/* set y position */
au0828_writereg(d, 0x112, 0x02);
au0828_writereg(d, 0x113, 0x00);
au0828_writereg(d, 0x116, 0xf2);
au0828_writereg(d, 0x117, 0x00);
au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
return 0;
}
int au0828_analog_stream_disable(struct au0828_dev *d)
{
dprintk(1, "au0828_analog_stream_disable called\n");
au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
return 0;
}
void au0828_analog_stream_reset(struct au0828_dev *dev)
{
dprintk(1, "au0828_analog_stream_reset called\n");
au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
mdelay(30);
au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
}
/*
* Some operations needs to stop current streaming
*/
static int au0828_stream_interrupt(struct au0828_dev *dev)
{
int ret = 0;
dev->stream_state = STREAM_INTERRUPT;
if(dev->dev_state == DEV_DISCONNECTED)
return -ENODEV;
else if(ret) {
dev->dev_state = DEV_MISCONFIGURED;
dprintk(1, "%s device is misconfigured!\n", __FUNCTION__);
return ret;
}
return 0;
}
/*
* au0828_release_resources
* unregister v4l2 devices
*/
void au0828_analog_unregister(struct au0828_dev *dev)
{
dprintk(1, "au0828_release_resources called\n");
mutex_lock(&au0828_sysfs_lock);
list_del(&dev->au0828list);
video_unregister_device(dev->vdev);
video_unregister_device(dev->vbi_dev);
mutex_unlock(&au0828_sysfs_lock);
}
/* Usage lock check functions */
static int res_get(struct au0828_fh *fh)
{
struct au0828_dev *dev = fh->dev;
int rc = 0;
/* This instance already has stream_on */
if (fh->stream_on)
return rc;
if (dev->stream_on)
return -EBUSY;
dev->stream_on = 1;
fh->stream_on = 1;
return rc;
}
static int res_check(struct au0828_fh *fh)
{
return fh->stream_on;
}
static void res_free(struct au0828_fh *fh)
{
struct au0828_dev *dev = fh->dev;
fh->stream_on = 0;
dev->stream_on = 0;
}
static int au0828_v4l2_open(struct file *filp)
{
int minor = video_devdata(filp)->minor;
int ret = 0;
struct au0828_dev *h, *dev = NULL;
struct au0828_fh *fh;
int type = 0;
struct list_head *list;
list_for_each(list, &au0828_devlist) {
h = list_entry(list, struct au0828_dev, au0828list);
if(h->vdev->minor == minor) {
dev = h;
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
}
if(h->vbi_dev->minor == minor) {
dev = h;
type = V4L2_BUF_TYPE_VBI_CAPTURE;
}
}
if(NULL == dev)
return -ENODEV;
fh = kzalloc(sizeof(struct au0828_fh), GFP_KERNEL);
if(NULL == fh) {
dprintk(1, "Failed allocate au0828_fh struct!\n");
return -ENOMEM;
}
fh->type = type;
fh->dev = dev;
filp->private_data = fh;
if(fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
/* set au0828 interface0 to AS5 here again */
ret = usb_set_interface(dev->usbdev, 0, 5);
if(ret < 0) {
printk("Au0828 can't set alt setting to 5!\n");
return -EBUSY;
}
dev->width = NTSC_STD_W;
dev->height = NTSC_STD_H;
dev->frame_size = dev->width * dev->height * 2;
dev->field_size = dev->width * dev->height;
dev->bytesperline = dev->width * 2;
au0828_analog_stream_enable(dev);
au0828_analog_stream_reset(dev);
/* If we were doing ac97 instead of i2s, it would go here...*/
au0828_i2s_init(dev);
dev->stream_state = STREAM_OFF;
dev->dev_state |= DEV_INITIALIZED;
}
dev->users++;
videobuf_queue_vmalloc_init(&fh->vb_vidq, &au0828_video_qops,
NULL, &dev->slock, fh->type,
V4L2_FIELD_INTERLACED,
sizeof(struct au0828_buffer), fh);
return ret;
}
static int au0828_v4l2_close(struct file *filp)
{
int ret;
struct au0828_fh *fh = filp->private_data;
struct au0828_dev *dev = fh->dev;
mutex_lock(&dev->lock);
if (res_check(fh))
res_free(fh);
if(dev->users == 1) {
videobuf_stop(&fh->vb_vidq);
videobuf_mmap_free(&fh->vb_vidq);
if(dev->dev_state & DEV_DISCONNECTED) {
au0828_analog_unregister(dev);
mutex_unlock(&dev->lock);
kfree(dev);
return 0;
}
au0828_analog_stream_disable(dev);
au0828_uninit_isoc(dev);
/* When close the device, set the usb intf0 into alt0 to free
USB bandwidth */
ret = usb_set_interface(dev->usbdev, 0, 0);
if(ret < 0)
printk("Au0828 can't set alt setting to 0!\n");
}
kfree(fh);
dev->users--;
wake_up_interruptible_nr(&dev->open, 1);
mutex_unlock(&dev->lock);
return 0;
}
static ssize_t au0828_v4l2_read(struct file *filp, char __user *buf,
size_t count, loff_t *pos)
{
struct au0828_fh *fh = filp->private_data;
struct au0828_dev *dev = fh->dev;
int rc;
rc = check_dev(dev);
if (rc < 0)
return rc;
if(fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
mutex_lock(&dev->lock);
rc = res_get(fh);
mutex_unlock(&dev->lock);
if (unlikely(rc < 0))
return rc;
return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
filp->f_flags & O_NONBLOCK);
}
return 0;
}
static unsigned int au0828_v4l2_poll(struct file *filp, poll_table *wait)
{
struct au0828_fh *fh = filp->private_data;
struct au0828_dev *dev = fh->dev;
int rc;
rc = check_dev(dev);
if (rc < 0)
return rc;
mutex_lock(&dev->lock);
rc = res_get(fh);
mutex_unlock(&dev->lock);
if (unlikely(rc < 0))
return POLLERR;
if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
return POLLERR;
return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
}
static int au0828_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct au0828_fh *fh = filp->private_data;
struct au0828_dev *dev = fh->dev;
int rc;
rc = check_dev(dev);
if (rc < 0)
return rc;
mutex_lock(&dev->lock);
rc = res_get(fh);
mutex_unlock(&dev->lock);
if (unlikely(rc < 0))
return rc;
rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
dprintk(2, "vma start=0x%08lx, size=%ld, ret=%d\n",
(unsigned long)vma->vm_start,
(unsigned long)vma->vm_end-(unsigned long)vma->vm_start,
rc);
return rc;
}
static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
struct v4l2_format *format)
{
int ret;
int width = format->fmt.pix.width;
int height = format->fmt.pix.height;
unsigned int maxwidth, maxheight;
maxwidth = 720;
maxheight = 480;
if(format->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) {
dprintk(1, "VBI format set: to be supported!\n");
return 0;
}
if(format->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
return 0;
}
if(format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
return -EINVAL;
}
/* If they are demanding a format other than the one we support,
bail out (tvtime asks for UYVY and then retries with YUYV) */
if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) {
return -EINVAL;
}
/* format->fmt.pix.width only support 720 and height 480 */
if(width != 720)
width = 720;
if(height != 480)
height = 480;
format->fmt.pix.width = width;
format->fmt.pix.height = height;
format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
format->fmt.pix.bytesperline = width * 2;
format->fmt.pix.sizeimage = width * height * 2;
format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
format->fmt.pix.field = V4L2_FIELD_INTERLACED;
if(cmd == VIDIOC_TRY_FMT)
return 0;
/* maybe set new image format, driver current only support 720*480 */
dev->width = width;
dev->height = height;
dev->frame_size = width * height * 2;
dev->field_size = width * height;
dev->bytesperline = width * 2;
if(dev->stream_state == STREAM_ON) {
dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
if((ret = au0828_stream_interrupt(dev))) {
dprintk(1, "error interrupting video stream!\n");
return ret;
}
}
/* set au0828 interface0 to AS5 here again */
ret = usb_set_interface(dev->usbdev, 0, 5);
if(ret < 0) {
printk("Au0828 can't set alt setting to 5!\n");
return -EBUSY;
}
au0828_analog_stream_enable(dev);
return 0;
}
static int vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
au0828_call_i2c_clients(dev, VIDIOC_QUERYCTRL, qc);
if (qc->type)
return 0;
else
return -EINVAL;
}
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
memset(cap, 0, sizeof(*cap));
strlcpy(cap->driver, "au0828", sizeof(cap->driver));
strlcpy(cap->card, au0828_boards[dev->board].name, sizeof(cap->card));
strlcpy(cap->bus_info, dev->usbdev->dev.bus_id, sizeof(cap->bus_info));
cap->version = AU0828_VERSION_CODE;
/*set the device capabilities */
cap->capabilities = V4L2_CAP_VBI_CAPTURE |
V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_AUDIO |
V4L2_CAP_READWRITE |
V4L2_CAP_STREAMING |
V4L2_CAP_TUNER;
return 0;
}
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
if(f->index)
return -EINVAL;
memset(f, 0, sizeof(*f));
f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
strcpy(f->description, "Packed YUV2");
f->flags = 0;
f->pixelformat = V4L2_PIX_FMT_UYVY;
memset(f->reserved, 0, sizeof(f->reserved));
return 0;
}
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
f->fmt.pix.width = dev->width;
f->fmt.pix.height = dev->height;
f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
f->fmt.pix.bytesperline = dev->bytesperline;
f->fmt.pix.sizeimage = dev->frame_size;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
f->fmt.pix.field = V4L2_FIELD_INTERLACED;
return 0;
}
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
}
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
int rc;
if (videobuf_queue_is_busy(&fh->vb_vidq)) {
printk("%s queue busy\n", __func__);
rc = -EBUSY;
goto out;
}
if (dev->stream_on && !fh->stream_on) {
printk("%s device in use by another fh\n", __func__);
rc = -EBUSY;
goto out;
}
return au0828_set_format(dev, VIDIOC_S_FMT, f);
out:
return rc;
}
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * norm)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
/* FIXME: when we support something other than NTSC, we are going to
have to make the au0828 bridge adjust the size of its capture
buffer, which is currently hardcoded at 720x480 */
au0828_call_i2c_clients(dev, VIDIOC_S_STD, norm);
return 0;
}
static int vidioc_enum_input(struct file *file, void *priv,
struct v4l2_input *input)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
unsigned int tmp;
static const char *inames[] = {
[AU0828_VMUX_COMPOSITE] = "Composite",
[AU0828_VMUX_SVIDEO] = "S-Video",
[AU0828_VMUX_CABLE] = "Cable TV",
[AU0828_VMUX_TELEVISION] = "Television",
[AU0828_VMUX_DVB] = "DVB",
[AU0828_VMUX_DEBUG] = "tv debug"
};
tmp = input->index;
if(tmp > AU0828_MAX_INPUT)
return -EINVAL;
if(AUVI_INPUT(tmp)->type == 0)
return -EINVAL;
memset(input, 0, sizeof(*input));
input->index = tmp;
strcpy(input->name, inames[AUVI_INPUT(tmp)->type]);
if((AUVI_INPUT(tmp)->type == AU0828_VMUX_TELEVISION) ||
(AUVI_INPUT(tmp)->type == AU0828_VMUX_CABLE))
input->type |= V4L2_INPUT_TYPE_TUNER;
else
input->type |= V4L2_INPUT_TYPE_CAMERA;
input->std = dev->vdev->tvnorms;
return 0;
}
static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
*i = dev->ctrl_input;
return 0;
}
static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
int i;
struct v4l2_routing route;
dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __FUNCTION__,
index);
if(index >= AU0828_MAX_INPUT)
return -EINVAL;
if(AUVI_INPUT(index)->type == 0)
return -EINVAL;
dev->ctrl_input = index;
switch(AUVI_INPUT(index)->type) {
case AU0828_VMUX_SVIDEO:
{
dev->input_type = AU0828_VMUX_SVIDEO;
break;
}
case AU0828_VMUX_COMPOSITE:
{
dev->input_type = AU0828_VMUX_COMPOSITE;
break;
}
case AU0828_VMUX_TELEVISION:
{
dev->input_type = AU0828_VMUX_TELEVISION;
break;
}
default:
;
}
route.input = AUVI_INPUT(index)->vmux;
route.output = 0;
au0828_call_i2c_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route);
for (i = 0; i < AU0828_MAX_INPUT; i++) {
int enable = 0;
if (AUVI_INPUT(i)->audio_setup == NULL) {
continue;
}
if (i == index)
enable = 1;
else
enable = 0;
if (enable) {
(AUVI_INPUT(i)->audio_setup)(dev, enable);
} else {
/* Make sure we leave it turned on if some
other input is routed to this callback */
if ((AUVI_INPUT(i)->audio_setup) !=
((AUVI_INPUT(index)->audio_setup))) {
(AUVI_INPUT(i)->audio_setup)(dev, enable);
}
}
}
route.input = AUVI_INPUT(index)->amux;
au0828_call_i2c_clients(dev, VIDIOC_INT_S_AUDIO_ROUTING,
&route);
return 0;
}
static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
unsigned int index = a->index;
if(a->index > 1)
return -EINVAL;
memset(a, 0, sizeof(*a));
index = dev->ctrl_ainput;
if(index == 0)
strcpy(a->name, "Television");
else
strcpy(a->name, "Line in");
a->capability = V4L2_AUDCAP_STEREO;
a->index = index;
return 0;
}
static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
if(a->index != dev->ctrl_ainput)
return -EINVAL;
return 0;
}
static int vidioc_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
au0828_call_i2c_clients(dev, VIDIOC_G_CTRL, ctrl);
return 0;
}
static int vidioc_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
au0828_call_i2c_clients(dev, VIDIOC_S_CTRL, ctrl);
return 0;
}
static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
if(t->index != 0)
return -EINVAL;
memset(t, 0, sizeof(*t));
strcpy(t->name, "Auvitek tuner");
au0828_call_i2c_clients(dev, VIDIOC_G_TUNER, t);
return 0;
}
static int vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *t)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
if(t->index != 0)
return -EINVAL;
t->type = V4L2_TUNER_ANALOG_TV;
au0828_call_i2c_clients(dev, VIDIOC_S_TUNER, t);
dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
t->afc);
return 0;
}
static int vidioc_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *freq)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
memset(freq, 0, sizeof(*freq));
freq->type = V4L2_TUNER_ANALOG_TV;
freq->frequency = dev->ctrl_freq;
return 0;
}
static int vidioc_s_frequency(struct file *file, void *priv,
struct v4l2_frequency *freq)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
if(freq->tuner != 0)
return -EINVAL;
if(freq->type != V4L2_TUNER_ANALOG_TV)
return -EINVAL;
dev->ctrl_freq = freq->frequency;
au0828_call_i2c_clients(dev, VIDIOC_S_FREQUENCY, freq);
au0828_analog_stream_reset(dev);
return 0;
}
static int vidioc_g_chip_ident(struct file *file, void *priv,
struct v4l2_dbg_chip_ident *chip)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
chip->ident = V4L2_IDENT_NONE;
chip->revision = 0;
au0828_call_i2c_clients(dev, VIDIOC_DBG_G_CHIP_IDENT, chip);
return 0;
}
static int vidioc_cropcap(struct file *file, void *priv,
struct v4l2_cropcap *cc)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
if(cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
cc->bounds.left = 0;
cc->bounds.top = 0;
cc->bounds.width = dev->width;
cc->bounds.height = dev->height;
cc->defrect = cc->bounds;
cc->pixelaspect.numerator = 54;
cc->pixelaspect.denominator = 59;
return 0;
}
static int vidioc_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
int b = V4L2_BUF_TYPE_VIDEO_CAPTURE;
int rc;
rc = check_dev(dev);
if (rc < 0)
return rc;
if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
au0828_analog_stream_enable(dev);
au0828_call_i2c_clients(dev, VIDIOC_STREAMON, &b);
}
mutex_lock(&dev->lock);
rc = res_get(fh);
if (likely(rc >= 0))
rc = videobuf_streamon(&fh->vb_vidq);
mutex_unlock(&dev->lock);
return rc;
}
static int vidioc_streamoff(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
int b = V4L2_BUF_TYPE_VIDEO_CAPTURE;
int i;
int ret;
int rc;
rc = check_dev(dev);
if (rc < 0)
return rc;
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
if (type != fh->type)
return -EINVAL;
if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
au0828_call_i2c_clients(dev, VIDIOC_STREAMOFF, &b);
if((ret = au0828_stream_interrupt(dev)) != 0)
return ret;
}
for (i = 0; i < AU0828_MAX_INPUT; i++) {
if (AUVI_INPUT(i)->audio_setup == NULL) {
continue;
}
(AUVI_INPUT(i)->audio_setup)(dev, 0);
}
mutex_lock(&dev->lock);
videobuf_streamoff(&fh->vb_vidq);
res_free(fh);
mutex_unlock(&dev->lock);
return 0;
}
static int vidioc_g_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
switch (reg->match.type) {
case V4L2_CHIP_MATCH_I2C_DRIVER:
au0828_call_i2c_clients(dev, VIDIOC_DBG_G_REGISTER, reg);
return 0;
default:
return -EINVAL;
}
}
static int vidioc_s_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
switch (reg->match.type) {
case V4L2_CHIP_MATCH_I2C_DRIVER:
au0828_call_i2c_clients(dev, VIDIOC_DBG_S_REGISTER, reg);
return 0;
default:
return -EINVAL;
}
return 0;
}
static int vidioc_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *rb)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
int rc;
rc = check_dev(dev);
if (rc < 0)
return rc;
return videobuf_reqbufs(&fh->vb_vidq, rb);
}
static int vidioc_querybuf(struct file *file, void *priv,
struct v4l2_buffer *b)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
int rc;
rc = check_dev(dev);
if (rc < 0)
return rc;
return videobuf_querybuf(&fh->vb_vidq, b);
}
static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
int rc;
rc = check_dev(dev);
if (rc < 0)
return rc;
return videobuf_qbuf(&fh->vb_vidq, b);
}
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
{
struct au0828_fh *fh = priv;
struct au0828_dev *dev = fh->dev;
int rc;
rc = check_dev(dev);
if (rc < 0)
return rc;
/* Workaround for a bug in the au0828 hardware design that sometimes
results in the colorspace being inverted */
if (dev->greenscreen_detected == 1) {
dprintk(1, "Detected green frame. Resetting stream...\n");
au0828_analog_stream_reset(dev);
dev->greenscreen_detected = 0;
}
return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK);
}
#ifdef CONFIG_VIDEO_V4L1_COMPAT
static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
{
struct au0828_fh *fh = priv;
return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8);
}
#endif
static struct v4l2_file_operations au0828_v4l_fops = {
.owner = THIS_MODULE,
.open = au0828_v4l2_open,
.release = au0828_v4l2_close,
.read = au0828_v4l2_read,
.poll = au0828_v4l2_poll,
.mmap = au0828_v4l2_mmap,
.ioctl = video_ioctl2,
};
static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
.vidioc_g_audio = vidioc_g_audio,
.vidioc_s_audio = vidioc_s_audio,
.vidioc_cropcap = vidioc_cropcap,
#ifdef AAA
.vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap,
.vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
.vidioc_s_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap,
#endif
.vidioc_reqbufs = vidioc_reqbufs,
.vidioc_querybuf = vidioc_querybuf,
.vidioc_qbuf = vidioc_qbuf,
.vidioc_dqbuf = vidioc_dqbuf,
.vidioc_s_std = vidioc_s_std,
.vidioc_enum_input = vidioc_enum_input,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
.vidioc_queryctrl = vidioc_queryctrl,
.vidioc_g_ctrl = vidioc_g_ctrl,
.vidioc_s_ctrl = vidioc_s_ctrl,
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
.vidioc_g_tuner = vidioc_g_tuner,
.vidioc_s_tuner = vidioc_s_tuner,
.vidioc_g_frequency = vidioc_g_frequency,
.vidioc_s_frequency = vidioc_s_frequency,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_g_register = vidioc_g_register,
.vidioc_s_register = vidioc_s_register,
.vidioc_g_chip_ident = vidioc_g_chip_ident,
#endif
#ifdef CONFIG_VIDEO_V4L1_COMPAT
.vidiocgmbuf = vidiocgmbuf,
#endif
};
static const struct video_device au0828_video_template = {
.fops = &au0828_v4l_fops,
.release = video_device_release,
.ioctl_ops = &video_ioctl_ops,
.minor = -1,
.tvnorms = V4L2_STD_NTSC,
.current_norm = V4L2_STD_NTSC,
};
/**************************************************************************/
int au0828_analog_register(struct au0828_dev *dev)
{
int retval = -ENOMEM;
dprintk(1, "au0828_analog_register called!\n");
/* Load the analog demodulator driver (note this would need to be
abstracted out if we ever need to support a different demod) */
request_module("au8522");
/* Load the tuner module, which results in i2c enumeration and
attachment of whatever tuner is on the bus */
request_module("tuner");
init_waitqueue_head(&dev->open);
spin_lock_init(&dev->slock);
mutex_init(&dev->lock);
INIT_LIST_HEAD(&dev->vidq.active);
INIT_LIST_HEAD(&dev->vidq.queued);
dev->width = NTSC_STD_W;
dev->height = NTSC_STD_H;
dev->field_size = dev->width * dev->height;
dev->frame_size = dev->field_size << 1;
dev->bytesperline = dev->width << 1;
dev->ctrl_ainput = 0;
/* allocate and fill v4l2 video struct */
dev->vdev = video_device_alloc();
if(NULL == dev->vdev) {
dprintk(1, "Can't allocate video_device.\n");
return -ENOMEM;
}
dev->vbi_dev = video_device_alloc();
if(NULL == dev->vbi_dev) {
dprintk(1, "Can't allocate vbi_device.\n");
kfree(dev->vdev);
return -ENOMEM;
}
/* Fill the video capture device struct */
*dev->vdev = au0828_video_template;
dev->vdev->vfl_type = VID_TYPE_CAPTURE | VID_TYPE_TUNER;
dev->vdev->parent = &dev->usbdev->dev;
strcpy(dev->vdev->name, "au0828a video");
/* Setup the VBI device */
*dev->vbi_dev = au0828_video_template;
dev->vbi_dev->vfl_type = VFL_TYPE_VBI;
dev->vbi_dev->parent = &dev->usbdev->dev;
strcpy(dev->vbi_dev->name, "au0828a vbi");
list_add_tail(&dev->au0828list, &au0828_devlist);
/* Register the v4l2 device */
if((retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1)) != 0) {
dprintk(1, "unable to register video device (error = %d).\n", retval);
list_del(&dev->au0828list);
video_device_release(dev->vdev);
return -ENODEV;
}
/* Register the vbi device */
if((retval = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, -1)) != 0) {
dprintk(1, "unable to register vbi device (error = %d).\n", retval);
list_del(&dev->au0828list);
video_device_release(dev->vbi_dev);
video_device_release(dev->vdev);
return -ENODEV;
}
dprintk(1, "%s completed!\n", __FUNCTION__);
return 0;
}
...@@ -24,6 +24,10 @@ ...@@ -24,6 +24,10 @@
#include <linux/i2c-algo-bit.h> #include <linux/i2c-algo-bit.h>
#include <media/tveeprom.h> #include <media/tveeprom.h>
/* Analog */
#include <linux/videodev2.h>
#include <media/videobuf-vmalloc.h>
/* DVB */ /* DVB */
#include "demux.h" #include "demux.h"
#include "dmxdev.h" #include "dmxdev.h"
...@@ -39,8 +43,48 @@ ...@@ -39,8 +43,48 @@
#define URB_COUNT 16 #define URB_COUNT 16
#define URB_BUFSIZE (0xe522) #define URB_BUFSIZE (0xe522)
/* Analog constants */
#define NTSC_STD_W 720
#define NTSC_STD_H 480
#define AU0828_INTERLACED_DEFAULT 1
#define V4L2_CID_PRIVATE_SHARPNESS (V4L2_CID_PRIVATE_BASE + 0)
/* Defination for AU0828 USB transfer */
#define AU0828_MAX_ISO_BUFS 12 /* maybe resize this value in the future */
#define AU0828_ISO_PACKETS_PER_URB 10
#define AU0828_ISO_MAX_FRAME_SIZE (3 * 1024)
#define AU0828_ISO_BUFFER_SIZE (AU0828_ISO_PACKETS_PER_URB * AU0828_ISO_MAX_FRAME_SIZE)
#define AU0828_MIN_BUF 4
#define AU0828_DEF_BUF 8
#define AU0828_MAX_IMAGES 10
#define AU0828_FRAME_SIZE (1028 * 1024 * 4)
#define AU0828_URB_TIMEOUT msecs_to_jiffies(AU0828_MAX_ISO_BUFS * AU0828_ISO_PACKETS_PER_URB)
#define AU0828_MAX_INPUT 4
enum au0828_itype {
AU0828_VMUX_COMPOSITE = 1,
AU0828_VMUX_SVIDEO,
AU0828_VMUX_CABLE,
AU0828_VMUX_TELEVISION,
AU0828_VMUX_DVB,
AU0828_VMUX_DEBUG
};
struct au0828_input {
enum au0828_itype type;
unsigned int vmux;
unsigned int amux;
void (*audio_setup) (void *priv, int enable);
};
struct au0828_board { struct au0828_board {
char *name; char *name;
struct au0828_input input[AU0828_MAX_INPUT];
}; };
struct au0828_dvb { struct au0828_dvb {
...@@ -55,6 +99,83 @@ struct au0828_dvb { ...@@ -55,6 +99,83 @@ struct au0828_dvb {
int feeding; int feeding;
}; };
enum au0828_stream_state {
STREAM_OFF,
STREAM_INTERRUPT,
STREAM_ON
};
#define AUVI_INPUT(nr) (&au0828_boards[dev->board].input[nr])
/* device state */
enum au0828_dev_state {
DEV_INITIALIZED = 0x01,
DEV_DISCONNECTED = 0x02,
DEV_MISCONFIGURED = 0x04
};
struct au0828_fh {
struct au0828_dev *dev;
unsigned int stream_on:1; /* Locks streams */
struct videobuf_queue vb_vidq;
enum v4l2_buf_type type;
};
struct au0828_usb_isoc_ctl {
/* max packet size of isoc transaction */
int max_pkt_size;
/* number of allocated urbs */
int num_bufs;
/* urb for isoc transfers */
struct urb **urb;
/* transfer buffers for isoc transfer */
char **transfer_buffer;
/* Last buffer command and region */
u8 cmd;
int pos, size, pktsize;
/* Last field: ODD or EVEN? */
int field;
/* Stores incomplete commands */
u32 tmp_buf;
int tmp_buf_len;
/* Stores already requested buffers */
struct au0828_buffer *buf;
/* Stores the number of received fields */
int nfields;
/* isoc urb callback */
int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb);
};
/* buffer for one video frame */
struct au0828_buffer {
/* common v4l buffer stuff -- must be first */
struct videobuf_buffer vb;
struct list_head frame;
int top_field;
int receiving;
};
struct au0828_dmaqueue {
struct list_head active;
struct list_head queued;
wait_queue_head_t wq;
/* Counters to control buffer fill */
int pos;
};
struct au0828_dev { struct au0828_dev {
struct mutex mutex; struct mutex mutex;
struct usb_device *usbdev; struct usb_device *usbdev;
...@@ -70,16 +191,49 @@ struct au0828_dev { ...@@ -70,16 +191,49 @@ struct au0828_dev {
/* Digital */ /* Digital */
struct au0828_dvb dvb; struct au0828_dvb dvb;
/* Analog */
struct list_head au0828list;
int users;
unsigned int stream_on:1; /* Locks streams */
struct video_device *vdev;
struct video_device *vbi_dev;
int width;
int height;
u32 field_size;
u32 frame_size;
u32 bytesperline;
int type;
u8 ctrl_ainput;
__u8 isoc_in_endpointaddr;
u8 isoc_init_ok;
int greenscreen_detected;
unsigned int frame_count;
int ctrl_freq;
int input_type;
unsigned int ctrl_input;
enum au0828_dev_state dev_state;
enum au0828_stream_state stream_state;
wait_queue_head_t open;
struct mutex lock;
/* Isoc control struct */
struct au0828_dmaqueue vidq;
struct au0828_usb_isoc_ctl isoc_ctl;
spinlock_t slock;
/* usb transfer */
int alt; /* alternate */
int max_pkt_size; /* max packet size of isoc transaction */
int num_alt; /* Number of alternative settings */
unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
struct urb *urb[AU0828_MAX_ISO_BUFS]; /* urb for isoc transfers */
char *transfer_buffer[AU0828_MAX_ISO_BUFS];/* transfer buffers for isoc
transfer */
/* USB / URB Related */ /* USB / URB Related */
int urb_streaming; int urb_streaming;
struct urb *urbs[URB_COUNT]; struct urb *urbs[URB_COUNT];
};
struct au0828_buff {
struct au0828_dev *dev;
struct urb *purb;
struct list_head buff_list;
}; };
/* ----------------------------------------------------------- */ /* ----------------------------------------------------------- */
...@@ -114,6 +268,12 @@ extern int au0828_i2c_unregister(struct au0828_dev *dev); ...@@ -114,6 +268,12 @@ extern int au0828_i2c_unregister(struct au0828_dev *dev);
extern void au0828_call_i2c_clients(struct au0828_dev *dev, extern void au0828_call_i2c_clients(struct au0828_dev *dev,
unsigned int cmd, void *arg); unsigned int cmd, void *arg);
/* ----------------------------------------------------------- */
/* au0828-video.c */
int au0828_analog_register(struct au0828_dev *dev);
int au0828_analog_stream_disable(struct au0828_dev *d);
void au0828_analog_unregister(struct au0828_dev *dev);
/* ----------------------------------------------------------- */ /* ----------------------------------------------------------- */
/* au0828-dvb.c */ /* au0828-dvb.c */
extern int au0828_dvb_register(struct au0828_dev *dev); extern int au0828_dvb_register(struct au0828_dev *dev);
......
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