/*
* Driver for the Auvitek USB bridge
*
* Copyright (c) 2008 Steven Toth <stoth@hauppauge.com>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/suspend.h>
#include <media/v4l2-common.h>
#include "au0828.h"
#include "au8522.h"
#include "xc5000.h"
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
#define _AU0828_BULKPIPE 0x83
#define _BULKPIPESIZE 0xe522
static struct au8522_config hauppauge_hvr950q_config = {
.demod_address = 0x8e >> 1,
.status_mode = AU8522_DEMODLOCKING,
};
static struct xc5000_config hauppauge_hvr950q_tunerconfig = {
.i2c_address = 0x61,
.if_khz = 6000,
.tuner_callback = au0828_tuner_callback
};
/*-------------------------------------------------------------------*/
static void urb_completion(struct urb *purb)
{
u8 *ptr;
struct au0828_dev *dev = purb->context;
int ptype = usb_pipetype(purb->pipe);
dprintk(2, "%s()\n", __func__);
if (!dev)
return;
if (dev->urb_streaming == 0)
return;
if (ptype != PIPE_BULK) {
printk(KERN_ERR "%s() Unsupported URB type %d\n",
__func__, ptype);
return;
}
ptr = (u8 *)purb->transfer_buffer;
/* Feed the transport payload into the kernel demux */
dvb_dmx_swfilter_packets(&dev->dvb.demux,
purb->transfer_buffer, purb->actual_length / 188);
/* Clean the buffer before we requeue */
memset(purb->transfer_buffer, 0, URB_BUFSIZE);
/* Requeue URB */
usb_submit_urb(purb, GFP_ATOMIC);
}
static int stop_urb_transfer(struct au0828_dev *dev)
{
int i;
dprintk(2, "%s()\n", __func__);
for (i = 0; i < URB_COUNT; i++) {
usb_kill_urb(dev->urbs[i]);
kfree(dev->urbs[i]->transfer_buffer);
usb_free_urb(dev->urbs[i]);
}
dev->urb_streaming = 0;
return 0;
}
static int start_urb_transfer(struct au0828_dev *dev)
{
struct urb *purb;
int i, ret = -ENOMEM;
dprintk(2, "%s()\n", __func__);
if (dev->urb_streaming) {
dprintk(2, "%s: iso xfer already running!\n", __func__);
return 0;
}
for (i = 0; i < URB_COUNT; i++) {
dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->urbs[i])
goto err;
purb = dev->urbs[i];
purb->transfer_buffer = kzalloc(URB_BUFSIZE, GFP_KERNEL);
if (!purb->transfer_buffer) {
usb_free_urb(purb);
dev->urbs[i] = NULL;
goto err;
}
purb->status = -EINPROGRESS;
usb_fill_bulk_urb(purb,
dev->usbdev,
usb_rcvbulkpipe(dev->usbdev, _AU0828_BULKPIPE),
purb->transfer_buffer,
URB_BUFSIZE,
urb_completion,
dev);
}
for (i = 0; i < URB_COUNT; i++) {
ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
if (ret != 0) {
stop_urb_transfer(dev);
printk(KERN_ERR "%s: failed urb submission, "
"err = %d\n", __func__, ret);
return ret;
}
}
dev->urb_streaming = 1;
ret = 0;
err:
return ret;
}
static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
struct au0828_dvb *dvb = &dev->dvb;
int ret = 0;
dprintk(1, "%s()\n", __func__);
if (!demux->dmx.frontend)
return -EINVAL;
if (dvb) {
mutex_lock(&dvb->lock);
if (dvb->feeding++ == 0) {
/* Start transport */
au0828_write(dev, 0x608, 0x90);
au0828_write(dev, 0x609, 0x72);
au0828_write(dev, 0x60a, 0x71);
au0828_write(dev, 0x60b, 0x01);
ret = start_urb_transfer(dev);
}
mutex_unlock(&dvb->lock);
}
return ret;
}
static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
struct au0828_dvb *dvb = &dev->dvb;
int ret = 0;
dprintk(1, "%s()\n", __func__);
if (dvb) {
mutex_lock(&dvb->lock);
if (--dvb->feeding == 0) {
/* Stop transport */
au0828_write(dev, 0x608, 0x00);
au0828_write(dev, 0x609, 0x00);
au0828_write(dev, 0x60a, 0x00);
au0828_write(dev, 0x60b, 0x00);
ret = stop_urb_transfer(dev);
}
mutex_unlock(&dvb->lock);
}
return ret;
}
static int dvb_register(struct au0828_dev *dev)
{
struct au0828_dvb *dvb = &dev->dvb;
int result;
dprintk(1, "%s()\n", __func__);
/* register adapter */
result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
&dev->usbdev->dev, adapter_nr);
if (result < 0) {
printk(KERN_ERR "%s: dvb_register_adapter failed "
"(errno = %d)\n", DRIVER_NAME, result);
goto fail_adapter;
}
dvb->adapter.priv = dev;
/* register frontend */
result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
if (result < 0) {
printk(KERN_ERR "%s: dvb_register_frontend failed "
"(errno = %d)\n", DRIVER_NAME, result);
goto fail_frontend;
}
/* register demux stuff */
dvb->demux.dmx.capabilities =
DMX_TS_FILTERING | DMX_SECTION_FILTERING |
DMX_MEMORY_BASED_FILTERING;
dvb->demux.priv = dev;
dvb->demux.filternum = 256;
dvb->demux.feednum = 256;
dvb->demux.start_feed = au0828_dvb_start_feed;
dvb->demux.stop_feed = au0828_dvb_stop_feed;
result = dvb_dmx_init(&dvb->demux);
if (result < 0) {
printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
DRIVER_NAME, result);
goto fail_dmx;
}
dvb->dmxdev.filternum = 256;
dvb->dmxdev.demux = &dvb->demux.dmx;
dvb->dmxdev.capabilities = 0;
result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
if (result < 0) {
printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
DRIVER_NAME, result);
goto fail_dmxdev;
}
dvb->fe_hw.source = DMX_FRONTEND_0;
result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
if (result < 0) {
printk(KERN_ERR "%s: add_frontend failed "
"(DMX_FRONTEND_0, errno = %d)\n", DRIVER_NAME, result);
goto fail_fe_hw;
}
dvb->fe_mem.source = DMX_MEMORY_FE;
result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
if (result < 0) {
printk(KERN_ERR "%s: add_frontend failed "
"(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result);
goto fail_fe_mem;
}
result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
if (result < 0) {
printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n",
DRIVER_NAME, result);
goto fail_fe_conn;
}
/* register network adapter */
dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
return 0;
fail_fe_conn:
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
fail_fe_mem:
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
fail_fe_hw:
dvb_dmxdev_release(&dvb->dmxdev);
fail_dmxdev:
dvb_dmx_release(&dvb->demux);
fail_dmx:
dvb_unregister_frontend(dvb->frontend);
fail_frontend:
dvb_frontend_detach(dvb->frontend);
dvb_unregister_adapter(&dvb->adapter);
fail_adapter:
return result;
}
void au0828_dvb_unregister(struct au0828_dev *dev)
{
struct au0828_dvb *dvb = &dev->dvb;
dprintk(1, "%s()\n", __func__);
if (dvb->frontend == NULL)
return;
dvb_net_release(&dvb->net);
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
dvb_dmxdev_release(&dvb->dmxdev);
dvb_dmx_release(&dvb->demux);
dvb_unregister_frontend(dvb->frontend);
dvb_frontend_detach(dvb->frontend);
dvb_unregister_adapter(&dvb->adapter);
}
/* All the DVB attach calls go here, this function get's modified
* for each new card. No other function in this file needs
* to change.
*/
int au0828_dvb_register(struct au0828_dev *dev)
{
struct au0828_dvb *dvb = &dev->dvb;
int ret;
dprintk(1, "%s()\n", __func__);
/* init frontend */
switch (dev->board) {
case AU0828_BOARD_HAUPPAUGE_HVR850:
case AU0828_BOARD_HAUPPAUGE_HVR950Q:
case AU0828_BOARD_DVICO_FUSIONHDTV7:
dvb->frontend = dvb_attach(au8522_attach,
&hauppauge_hvr950q_config,
&dev->i2c_adap);
if (dvb->frontend != NULL)
dvb_attach(xc5000_attach, dvb->frontend,
&dev->i2c_adap,
&hauppauge_hvr950q_tunerconfig, dev);
break;
default:
printk(KERN_WARNING "The frontend of your DVB/ATSC card "
"isn't supported yet\n");
break;
}
if (NULL == dvb->frontend) {
printk(KERN_ERR "%s() Frontend initialization failed\n",
__func__);
return -1;
}
/* Put the analog decoder in standby to keep it quiet */
au0828_call_i2c_clients(dev, TUNER_SET_STANDBY, NULL);
if (dvb->frontend->ops.analog_ops.standby)
dvb->frontend->ops.analog_ops.standby(dvb->frontend);
/* register everything */
ret = dvb_register(dev);
if (ret < 0) {
if (dvb->frontend->ops.release)
dvb->frontend->ops.release(dvb->frontend);
return ret;
}
return 0;
}
