mirror of https://gitee.com/openkylin/linux.git
456 lines
10 KiB
C
456 lines
10 KiB
C
/*
|
|
* tm6000-dvb.c - dvb-t support for TM5600/TM6000/TM6010 USB video capture devices
|
|
*
|
|
* Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.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 version 2
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/usb.h>
|
|
|
|
#include "tm6000.h"
|
|
#include "tm6000-regs.h"
|
|
|
|
#include "zl10353.h"
|
|
|
|
#include <media/tuner.h>
|
|
|
|
#include "tuner-xc2028.h"
|
|
#include "xc5000.h"
|
|
|
|
MODULE_DESCRIPTION("DVB driver extension module for tm5600/6000/6010 based TV cards");
|
|
MODULE_AUTHOR("Mauro Carvalho Chehab");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
MODULE_SUPPORTED_DEVICE("{{Trident, tm5600},{{Trident, tm6000},{{Trident, tm6010}");
|
|
|
|
static int debug;
|
|
|
|
module_param(debug, int, 0644);
|
|
MODULE_PARM_DESC(debug, "enable debug message");
|
|
|
|
static inline void print_err_status(struct tm6000_core *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) {
|
|
dprintk(dev, 1, "URB status %d [%s].\n",
|
|
status, errmsg);
|
|
} else {
|
|
dprintk(dev, 1, "URB packet %d, status %d [%s].\n",
|
|
packet, status, errmsg);
|
|
}
|
|
}
|
|
|
|
static void tm6000_urb_received(struct urb *urb)
|
|
{
|
|
int ret;
|
|
struct tm6000_core *dev = urb->context;
|
|
|
|
switch (urb->status) {
|
|
case 0:
|
|
case -ETIMEDOUT:
|
|
break;
|
|
case -ENOENT:
|
|
case -ECONNRESET:
|
|
case -ESHUTDOWN:
|
|
return;
|
|
default:
|
|
print_err_status(dev, 0, urb->status);
|
|
}
|
|
|
|
if (urb->actual_length > 0)
|
|
dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
|
|
urb->actual_length);
|
|
|
|
if (dev->dvb->streams > 0) {
|
|
ret = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "tm6000: error %s\n", __func__);
|
|
kfree(urb->transfer_buffer);
|
|
usb_free_urb(urb);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int tm6000_start_stream(struct tm6000_core *dev)
|
|
{
|
|
int ret;
|
|
unsigned int pipe, size;
|
|
struct tm6000_dvb *dvb = dev->dvb;
|
|
|
|
printk(KERN_INFO "tm6000: got start stream request %s\n", __func__);
|
|
|
|
if (dev->mode != TM6000_MODE_DIGITAL) {
|
|
tm6000_init_digital_mode(dev);
|
|
dev->mode = TM6000_MODE_DIGITAL;
|
|
}
|
|
|
|
dvb->bulk_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (dvb->bulk_urb == NULL)
|
|
return -ENOMEM;
|
|
|
|
pipe = usb_rcvbulkpipe(dev->udev, dev->bulk_in.endp->desc.bEndpointAddress
|
|
& USB_ENDPOINT_NUMBER_MASK);
|
|
|
|
size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
|
|
size = size * 15; /* 512 x 8 or 12 or 15 */
|
|
|
|
dvb->bulk_urb->transfer_buffer = kzalloc(size, GFP_KERNEL);
|
|
if (dvb->bulk_urb->transfer_buffer == NULL) {
|
|
usb_free_urb(dvb->bulk_urb);
|
|
printk(KERN_ERR "tm6000: couldn't allocate transfer buffer!\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
usb_fill_bulk_urb(dvb->bulk_urb, dev->udev, pipe,
|
|
dvb->bulk_urb->transfer_buffer,
|
|
size,
|
|
tm6000_urb_received, dev);
|
|
|
|
ret = usb_clear_halt(dev->udev, pipe);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "tm6000: error %i in %s during pipe reset\n",
|
|
ret, __func__);
|
|
return ret;
|
|
} else
|
|
printk(KERN_ERR "tm6000: pipe resetted\n");
|
|
|
|
/* mutex_lock(&tm6000_driver.open_close_mutex); */
|
|
ret = usb_submit_urb(dvb->bulk_urb, GFP_ATOMIC);
|
|
|
|
/* mutex_unlock(&tm6000_driver.open_close_mutex); */
|
|
if (ret) {
|
|
printk(KERN_ERR "tm6000: submit of urb failed (error=%i)\n",
|
|
ret);
|
|
|
|
kfree(dvb->bulk_urb->transfer_buffer);
|
|
usb_free_urb(dvb->bulk_urb);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tm6000_stop_stream(struct tm6000_core *dev)
|
|
{
|
|
struct tm6000_dvb *dvb = dev->dvb;
|
|
|
|
if (dvb->bulk_urb) {
|
|
printk(KERN_INFO "urb killing\n");
|
|
usb_kill_urb(dvb->bulk_urb);
|
|
printk(KERN_INFO "urb buffer free\n");
|
|
kfree(dvb->bulk_urb->transfer_buffer);
|
|
usb_free_urb(dvb->bulk_urb);
|
|
dvb->bulk_urb = NULL;
|
|
}
|
|
}
|
|
|
|
static int tm6000_start_feed(struct dvb_demux_feed *feed)
|
|
{
|
|
struct dvb_demux *demux = feed->demux;
|
|
struct tm6000_core *dev = demux->priv;
|
|
struct tm6000_dvb *dvb = dev->dvb;
|
|
printk(KERN_INFO "tm6000: got start feed request %s\n", __func__);
|
|
|
|
mutex_lock(&dvb->mutex);
|
|
if (dvb->streams == 0) {
|
|
dvb->streams = 1;
|
|
/* mutex_init(&tm6000_dev->streming_mutex); */
|
|
tm6000_start_stream(dev);
|
|
} else
|
|
++(dvb->streams);
|
|
mutex_unlock(&dvb->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tm6000_stop_feed(struct dvb_demux_feed *feed)
|
|
{
|
|
struct dvb_demux *demux = feed->demux;
|
|
struct tm6000_core *dev = demux->priv;
|
|
struct tm6000_dvb *dvb = dev->dvb;
|
|
|
|
printk(KERN_INFO "tm6000: got stop feed request %s\n", __func__);
|
|
|
|
mutex_lock(&dvb->mutex);
|
|
|
|
printk(KERN_INFO "stream %#x\n", dvb->streams);
|
|
--(dvb->streams);
|
|
if (dvb->streams == 0) {
|
|
printk(KERN_INFO "stop stream\n");
|
|
tm6000_stop_stream(dev);
|
|
/* mutex_destroy(&tm6000_dev->streaming_mutex); */
|
|
}
|
|
mutex_unlock(&dvb->mutex);
|
|
/* mutex_destroy(&tm6000_dev->streaming_mutex); */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tm6000_dvb_attach_frontend(struct tm6000_core *dev)
|
|
{
|
|
struct tm6000_dvb *dvb = dev->dvb;
|
|
|
|
if (dev->caps.has_zl10353) {
|
|
struct zl10353_config config = {
|
|
.demod_address = dev->demod_addr,
|
|
.no_tuner = 1,
|
|
.parallel_ts = 1,
|
|
.if2 = 45700,
|
|
.disable_i2c_gate_ctrl = 1,
|
|
};
|
|
|
|
dvb->frontend = dvb_attach(zl10353_attach, &config,
|
|
&dev->i2c_adap);
|
|
} else {
|
|
printk(KERN_ERR "tm6000: no frontend defined for the device!\n");
|
|
return -1;
|
|
}
|
|
|
|
return (!dvb->frontend) ? -1 : 0;
|
|
}
|
|
|
|
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
|
|
|
|
static int register_dvb(struct tm6000_core *dev)
|
|
{
|
|
int ret = -1;
|
|
struct tm6000_dvb *dvb = dev->dvb;
|
|
|
|
mutex_init(&dvb->mutex);
|
|
|
|
dvb->streams = 0;
|
|
|
|
/* attach the frontend */
|
|
ret = tm6000_dvb_attach_frontend(dev);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "tm6000: couldn't attach the frontend!\n");
|
|
goto err;
|
|
}
|
|
|
|
ret = dvb_register_adapter(&dvb->adapter, "Trident TVMaster 6000 DVB-T",
|
|
THIS_MODULE, &dev->udev->dev, adapter_nr);
|
|
dvb->adapter.priv = dev;
|
|
|
|
if (dvb->frontend) {
|
|
switch (dev->tuner_type) {
|
|
case TUNER_XC2028: {
|
|
struct xc2028_config cfg = {
|
|
.i2c_adap = &dev->i2c_adap,
|
|
.i2c_addr = dev->tuner_addr,
|
|
};
|
|
|
|
dvb->frontend->callback = tm6000_tuner_callback;
|
|
ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR
|
|
"tm6000: couldn't register frontend\n");
|
|
goto adapter_err;
|
|
}
|
|
|
|
if (!dvb_attach(xc2028_attach, dvb->frontend, &cfg)) {
|
|
printk(KERN_ERR "tm6000: couldn't register frontend (xc3028)\n");
|
|
ret = -EINVAL;
|
|
goto frontend_err;
|
|
}
|
|
printk(KERN_INFO "tm6000: XC2028/3028 asked to be attached to frontend!\n");
|
|
break;
|
|
}
|
|
case TUNER_XC5000: {
|
|
struct xc5000_config cfg = {
|
|
.i2c_address = dev->tuner_addr,
|
|
};
|
|
|
|
dvb->frontend->callback = tm6000_xc5000_callback;
|
|
ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR
|
|
"tm6000: couldn't register frontend\n");
|
|
goto adapter_err;
|
|
}
|
|
|
|
if (!dvb_attach(xc5000_attach, dvb->frontend, &dev->i2c_adap, &cfg)) {
|
|
printk(KERN_ERR "tm6000: couldn't register frontend (xc5000)\n");
|
|
ret = -EINVAL;
|
|
goto frontend_err;
|
|
}
|
|
printk(KERN_INFO "tm6000: XC5000 asked to be attached to frontend!\n");
|
|
break;
|
|
}
|
|
}
|
|
} else
|
|
printk(KERN_ERR "tm6000: no frontend found\n");
|
|
|
|
dvb->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING
|
|
| DMX_MEMORY_BASED_FILTERING;
|
|
dvb->demux.priv = dev;
|
|
dvb->demux.filternum = 8;
|
|
dvb->demux.feednum = 8;
|
|
dvb->demux.start_feed = tm6000_start_feed;
|
|
dvb->demux.stop_feed = tm6000_stop_feed;
|
|
dvb->demux.write_to_decoder = NULL;
|
|
ret = dvb_dmx_init(&dvb->demux);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "tm6000: dvb_dmx_init failed (errno = %d)\n", ret);
|
|
goto frontend_err;
|
|
}
|
|
|
|
dvb->dmxdev.filternum = dev->dvb->demux.filternum;
|
|
dvb->dmxdev.demux = &dev->dvb->demux.dmx;
|
|
dvb->dmxdev.capabilities = 0;
|
|
|
|
ret = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "tm6000: dvb_dmxdev_init failed (errno = %d)\n", ret);
|
|
goto dvb_dmx_err;
|
|
}
|
|
|
|
return 0;
|
|
|
|
dvb_dmx_err:
|
|
dvb_dmx_release(&dvb->demux);
|
|
frontend_err:
|
|
if (dvb->frontend) {
|
|
dvb_unregister_frontend(dvb->frontend);
|
|
dvb_frontend_detach(dvb->frontend);
|
|
}
|
|
adapter_err:
|
|
dvb_unregister_adapter(&dvb->adapter);
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
static void unregister_dvb(struct tm6000_core *dev)
|
|
{
|
|
struct tm6000_dvb *dvb = dev->dvb;
|
|
|
|
if (dvb->bulk_urb != NULL) {
|
|
struct urb *bulk_urb = dvb->bulk_urb;
|
|
|
|
kfree(bulk_urb->transfer_buffer);
|
|
bulk_urb->transfer_buffer = NULL;
|
|
usb_unlink_urb(bulk_urb);
|
|
usb_free_urb(bulk_urb);
|
|
}
|
|
|
|
/* mutex_lock(&tm6000_driver.open_close_mutex); */
|
|
if (dvb->frontend) {
|
|
dvb_unregister_frontend(dvb->frontend);
|
|
dvb_frontend_detach(dvb->frontend);
|
|
}
|
|
|
|
dvb_dmxdev_release(&dvb->dmxdev);
|
|
dvb_dmx_release(&dvb->demux);
|
|
dvb_unregister_adapter(&dvb->adapter);
|
|
mutex_destroy(&dvb->mutex);
|
|
/* mutex_unlock(&tm6000_driver.open_close_mutex); */
|
|
}
|
|
|
|
static int dvb_init(struct tm6000_core *dev)
|
|
{
|
|
struct tm6000_dvb *dvb;
|
|
int rc;
|
|
|
|
if (!dev)
|
|
return 0;
|
|
|
|
if (!dev->caps.has_dvb)
|
|
return 0;
|
|
|
|
if (dev->udev->speed == USB_SPEED_FULL) {
|
|
printk(KERN_INFO "This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)\n");
|
|
return 0;
|
|
}
|
|
|
|
dvb = kzalloc(sizeof(struct tm6000_dvb), GFP_KERNEL);
|
|
if (!dvb) {
|
|
printk(KERN_INFO "Cannot allocate memory\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dev->dvb = dvb;
|
|
|
|
rc = register_dvb(dev);
|
|
if (rc < 0) {
|
|
kfree(dvb);
|
|
dev->dvb = NULL;
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dvb_fini(struct tm6000_core *dev)
|
|
{
|
|
if (!dev)
|
|
return 0;
|
|
|
|
if (!dev->caps.has_dvb)
|
|
return 0;
|
|
|
|
if (dev->dvb) {
|
|
unregister_dvb(dev);
|
|
kfree(dev->dvb);
|
|
dev->dvb = NULL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct tm6000_ops dvb_ops = {
|
|
.type = TM6000_DVB,
|
|
.name = "TM6000 dvb Extension",
|
|
.init = dvb_init,
|
|
.fini = dvb_fini,
|
|
};
|
|
|
|
static int __init tm6000_dvb_register(void)
|
|
{
|
|
return tm6000_register_extension(&dvb_ops);
|
|
}
|
|
|
|
static void __exit tm6000_dvb_unregister(void)
|
|
{
|
|
tm6000_unregister_extension(&dvb_ops);
|
|
}
|
|
|
|
module_init(tm6000_dvb_register);
|
|
module_exit(tm6000_dvb_unregister);
|