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linuxdebug/drivers/media/usb/ttusb-dec/ttusb_dec.c

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* TTUSB DEC Driver
*
* Copyright (C) 2003-2004 Alex Woods <linux-dvb@giblets.org>
* IR support by Peter Beutner <p.beutner@gmx.net>
*/
#include <linux/list.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/usb.h>
#include <linux/interrupt.h>
#include <linux/firmware.h>
#include <linux/crc32.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/mutex.h>
#include <media/dmxdev.h>
#include <media/dvb_demux.h>
#include <media/dvb_frontend.h>
#include <media/dvb_net.h>
#include "ttusbdecfe.h"
static int debug;
static int output_pva;
static int enable_rc;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
module_param(output_pva, int, 0444);
MODULE_PARM_DESC(output_pva, "Output PVA from dvr device (default:off)");
module_param(enable_rc, int, 0644);
MODULE_PARM_DESC(enable_rc, "Turn on/off IR remote control(default: off)");
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
#define dprintk if (debug) printk
#define DRIVER_NAME "TechnoTrend/Hauppauge DEC USB"
#define COMMAND_PIPE 0x03
#define RESULT_PIPE 0x04
#define IN_PIPE 0x08
#define OUT_PIPE 0x07
#define IRQ_PIPE 0x0A
#define COMMAND_PACKET_SIZE 0x3c
#define ARM_PACKET_SIZE 0x1000
#define IRQ_PACKET_SIZE 0x8
#define ISO_BUF_COUNT 0x04
#define FRAMES_PER_ISO_BUF 0x04
#define ISO_FRAME_SIZE 0x0380
#define MAX_PVA_LENGTH 6144
enum ttusb_dec_model {
TTUSB_DEC2000T,
TTUSB_DEC2540T,
TTUSB_DEC3000S
};
enum ttusb_dec_packet_type {
TTUSB_DEC_PACKET_PVA,
TTUSB_DEC_PACKET_SECTION,
TTUSB_DEC_PACKET_EMPTY
};
enum ttusb_dec_interface {
TTUSB_DEC_INTERFACE_INITIAL,
TTUSB_DEC_INTERFACE_IN,
TTUSB_DEC_INTERFACE_OUT
};
typedef int (dvb_filter_pes2ts_cb_t) (void *, unsigned char *);
struct dvb_filter_pes2ts {
unsigned char buf[188];
unsigned char cc;
dvb_filter_pes2ts_cb_t *cb;
void *priv;
};
struct ttusb_dec {
enum ttusb_dec_model model;
char *model_name;
char *firmware_name;
int can_playback;
/* DVB bits */
struct dvb_adapter adapter;
struct dmxdev dmxdev;
struct dvb_demux demux;
struct dmx_frontend frontend;
struct dvb_net dvb_net;
struct dvb_frontend* fe;
u16 pid[DMX_PES_OTHER];
/* USB bits */
struct usb_device *udev;
u8 trans_count;
unsigned int command_pipe;
unsigned int result_pipe;
unsigned int in_pipe;
unsigned int out_pipe;
unsigned int irq_pipe;
enum ttusb_dec_interface interface;
struct mutex usb_mutex;
void *irq_buffer;
struct urb *irq_urb;
dma_addr_t irq_dma_handle;
void *iso_buffer;
struct urb *iso_urb[ISO_BUF_COUNT];
int iso_stream_count;
struct mutex iso_mutex;
u8 packet[MAX_PVA_LENGTH + 4];
enum ttusb_dec_packet_type packet_type;
int packet_state;
int packet_length;
int packet_payload_length;
u16 next_packet_id;
int pva_stream_count;
int filter_stream_count;
struct dvb_filter_pes2ts a_pes2ts;
struct dvb_filter_pes2ts v_pes2ts;
u8 v_pes[16 + MAX_PVA_LENGTH];
int v_pes_length;
int v_pes_postbytes;
struct list_head urb_frame_list;
struct tasklet_struct urb_tasklet;
spinlock_t urb_frame_list_lock;
struct dvb_demux_filter *audio_filter;
struct dvb_demux_filter *video_filter;
struct list_head filter_info_list;
spinlock_t filter_info_list_lock;
struct input_dev *rc_input_dev;
char rc_phys[64];
int active; /* Loaded successfully */
};
struct urb_frame {
u8 data[ISO_FRAME_SIZE];
int length;
struct list_head urb_frame_list;
};
struct filter_info {
u8 stream_id;
struct dvb_demux_filter *filter;
struct list_head filter_info_list;
};
static u16 rc_keys[] = {
KEY_POWER,
KEY_MUTE,
KEY_1,
KEY_2,
KEY_3,
KEY_4,
KEY_5,
KEY_6,
KEY_7,
KEY_8,
KEY_9,
KEY_0,
KEY_CHANNELUP,
KEY_VOLUMEDOWN,
KEY_OK,
KEY_VOLUMEUP,
KEY_CHANNELDOWN,
KEY_PREVIOUS,
KEY_ESC,
KEY_RED,
KEY_GREEN,
KEY_YELLOW,
KEY_BLUE,
KEY_OPTION,
KEY_M,
KEY_RADIO
};
static void dvb_filter_pes2ts_init(struct dvb_filter_pes2ts *p2ts,
unsigned short pid,
dvb_filter_pes2ts_cb_t *cb, void *priv)
{
unsigned char *buf=p2ts->buf;
buf[0]=0x47;
buf[1]=(pid>>8);
buf[2]=pid&0xff;
p2ts->cc=0;
p2ts->cb=cb;
p2ts->priv=priv;
}
static int dvb_filter_pes2ts(struct dvb_filter_pes2ts *p2ts,
unsigned char *pes, int len, int payload_start)
{
unsigned char *buf=p2ts->buf;
int ret=0, rest;
//len=6+((pes[4]<<8)|pes[5]);
if (payload_start)
buf[1]|=0x40;
else
buf[1]&=~0x40;
while (len>=184) {
buf[3]=0x10|((p2ts->cc++)&0x0f);
memcpy(buf+4, pes, 184);
if ((ret=p2ts->cb(p2ts->priv, buf)))
return ret;
len-=184; pes+=184;
buf[1]&=~0x40;
}
if (!len)
return 0;
buf[3]=0x30|((p2ts->cc++)&0x0f);
rest=183-len;
if (rest) {
buf[5]=0x00;
if (rest-1)
memset(buf+6, 0xff, rest-1);
}
buf[4]=rest;
memcpy(buf+5+rest, pes, len);
return p2ts->cb(p2ts->priv, buf);
}
static void ttusb_dec_set_model(struct ttusb_dec *dec,
enum ttusb_dec_model model);
static void ttusb_dec_handle_irq( struct urb *urb)
{
struct ttusb_dec *dec = urb->context;
char *buffer = dec->irq_buffer;
int retval;
int index = buffer[4];
switch(urb->status) {
case 0: /*success*/
break;
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
case -ETIME:
/* this urb is dead, cleanup */
dprintk("%s:urb shutting down with status: %d\n",
__func__, urb->status);
return;
default:
dprintk("%s:nonzero status received: %d\n",
__func__,urb->status);
goto exit;
}
if ((buffer[0] == 0x1) && (buffer[2] == 0x15)) {
/*
* IR - Event
*
* this is an fact a bit too simple implementation;
* the box also reports a keyrepeat signal
* (with buffer[3] == 0x40) in an interval of ~100ms.
* But to handle this correctly we had to imlemenent some
* kind of timer which signals a 'key up' event if no
* keyrepeat signal is received for lets say 200ms.
* this should/could be added later ...
* for now lets report each signal as a key down and up
*/
if (index - 1 < ARRAY_SIZE(rc_keys)) {
dprintk("%s:rc signal:%d\n", __func__, index);
input_report_key(dec->rc_input_dev, rc_keys[index - 1], 1);
input_sync(dec->rc_input_dev);
input_report_key(dec->rc_input_dev, rc_keys[index - 1], 0);
input_sync(dec->rc_input_dev);
}
}
exit:
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval)
printk("%s - usb_commit_urb failed with result: %d\n",
__func__, retval);
}
static u16 crc16(u16 crc, const u8 *buf, size_t len)
{
u16 tmp;
while (len--) {
crc ^= *buf++;
crc ^= (u8)crc >> 4;
tmp = (u8)crc;
crc ^= (tmp ^ (tmp << 1)) << 4;
}
return crc;
}
static int ttusb_dec_send_command(struct ttusb_dec *dec, const u8 command,
int param_length, const u8 params[],
int *result_length, u8 cmd_result[])
{
int result, actual_len;
u8 *b;
dprintk("%s\n", __func__);
b = kzalloc(COMMAND_PACKET_SIZE + 4, GFP_KERNEL);
if (!b)
return -ENOMEM;
result = mutex_lock_interruptible(&dec->usb_mutex);
if (result) {
printk("%s: Failed to lock usb mutex.\n", __func__);
goto err_free;
}
b[0] = 0xaa;
b[1] = ++dec->trans_count;
b[2] = command;
b[3] = param_length;
if (params)
memcpy(&b[4], params, param_length);
if (debug) {
printk(KERN_DEBUG "%s: command: %*ph\n",
__func__, param_length, b);
}
result = usb_bulk_msg(dec->udev, dec->command_pipe, b,
COMMAND_PACKET_SIZE + 4, &actual_len, 1000);
if (result) {
printk("%s: command bulk message failed: error %d\n",
__func__, result);
goto err_mutex_unlock;
}
result = usb_bulk_msg(dec->udev, dec->result_pipe, b,
COMMAND_PACKET_SIZE + 4, &actual_len, 1000);
if (result) {
printk("%s: result bulk message failed: error %d\n",
__func__, result);
goto err_mutex_unlock;
} else {
if (debug) {
printk(KERN_DEBUG "%s: result: %*ph\n",
__func__, actual_len, b);
}
if (result_length)
*result_length = b[3];
if (cmd_result && b[3] > 0)
memcpy(cmd_result, &b[4], b[3]);
}
err_mutex_unlock:
mutex_unlock(&dec->usb_mutex);
err_free:
kfree(b);
return result;
}
static int ttusb_dec_get_stb_state (struct ttusb_dec *dec, unsigned int *mode,
unsigned int *model, unsigned int *version)
{
u8 c[COMMAND_PACKET_SIZE];
int c_length;
int result;
__be32 tmp;
dprintk("%s\n", __func__);
result = ttusb_dec_send_command(dec, 0x08, 0, NULL, &c_length, c);
if (result)
return result;
if (c_length >= 0x0c) {
if (mode != NULL) {
memcpy(&tmp, c, 4);
*mode = ntohl(tmp);
}
if (model != NULL) {
memcpy(&tmp, &c[4], 4);
*model = ntohl(tmp);
}
if (version != NULL) {
memcpy(&tmp, &c[8], 4);
*version = ntohl(tmp);
}
return 0;
} else {
return -ENOENT;
}
}
static int ttusb_dec_audio_pes2ts_cb(void *priv, unsigned char *data)
{
struct ttusb_dec *dec = priv;
dec->audio_filter->feed->cb.ts(data, 188, NULL, 0,
&dec->audio_filter->feed->feed.ts, NULL);
return 0;
}
static int ttusb_dec_video_pes2ts_cb(void *priv, unsigned char *data)
{
struct ttusb_dec *dec = priv;
dec->video_filter->feed->cb.ts(data, 188, NULL, 0,
&dec->video_filter->feed->feed.ts, NULL);
return 0;
}
static void ttusb_dec_set_pids(struct ttusb_dec *dec)
{
u8 b[] = { 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff };
__be16 pcr = htons(dec->pid[DMX_PES_PCR]);
__be16 audio = htons(dec->pid[DMX_PES_AUDIO]);
__be16 video = htons(dec->pid[DMX_PES_VIDEO]);
dprintk("%s\n", __func__);
memcpy(&b[0], &pcr, 2);
memcpy(&b[2], &audio, 2);
memcpy(&b[4], &video, 2);
ttusb_dec_send_command(dec, 0x50, sizeof(b), b, NULL, NULL);
dvb_filter_pes2ts_init(&dec->a_pes2ts, dec->pid[DMX_PES_AUDIO],
ttusb_dec_audio_pes2ts_cb, dec);
dvb_filter_pes2ts_init(&dec->v_pes2ts, dec->pid[DMX_PES_VIDEO],
ttusb_dec_video_pes2ts_cb, dec);
dec->v_pes_length = 0;
dec->v_pes_postbytes = 0;
}
static void ttusb_dec_process_pva(struct ttusb_dec *dec, u8 *pva, int length)
{
if (length < 8) {
printk("%s: packet too short - discarding\n", __func__);
return;
}
if (length > 8 + MAX_PVA_LENGTH) {
printk("%s: packet too long - discarding\n", __func__);
return;
}
switch (pva[2]) {
case 0x01: { /* VideoStream */
int prebytes = pva[5] & 0x03;
int postbytes = (pva[5] & 0x0c) >> 2;
__be16 v_pes_payload_length;
if (output_pva) {
dec->video_filter->feed->cb.ts(pva, length, NULL, 0,
&dec->video_filter->feed->feed.ts, NULL);
return;
}
if (dec->v_pes_postbytes > 0 &&
dec->v_pes_postbytes == prebytes) {
memcpy(&dec->v_pes[dec->v_pes_length],
&pva[12], prebytes);
dvb_filter_pes2ts(&dec->v_pes2ts, dec->v_pes,
dec->v_pes_length + prebytes, 1);
}
if (pva[5] & 0x10) {
dec->v_pes[7] = 0x80;
dec->v_pes[8] = 0x05;
dec->v_pes[9] = 0x21 | ((pva[8] & 0xc0) >> 5);
dec->v_pes[10] = ((pva[8] & 0x3f) << 2) |
((pva[9] & 0xc0) >> 6);
dec->v_pes[11] = 0x01 |
((pva[9] & 0x3f) << 2) |
((pva[10] & 0x80) >> 6);
dec->v_pes[12] = ((pva[10] & 0x7f) << 1) |
((pva[11] & 0xc0) >> 7);
dec->v_pes[13] = 0x01 | ((pva[11] & 0x7f) << 1);
memcpy(&dec->v_pes[14], &pva[12 + prebytes],
length - 12 - prebytes);
dec->v_pes_length = 14 + length - 12 - prebytes;
} else {
dec->v_pes[7] = 0x00;
dec->v_pes[8] = 0x00;
memcpy(&dec->v_pes[9], &pva[8], length - 8);
dec->v_pes_length = 9 + length - 8;
}
dec->v_pes_postbytes = postbytes;
if (dec->v_pes[9 + dec->v_pes[8]] == 0x00 &&
dec->v_pes[10 + dec->v_pes[8]] == 0x00 &&
dec->v_pes[11 + dec->v_pes[8]] == 0x01)
dec->v_pes[6] = 0x84;
else
dec->v_pes[6] = 0x80;
v_pes_payload_length = htons(dec->v_pes_length - 6 +
postbytes);
memcpy(&dec->v_pes[4], &v_pes_payload_length, 2);
if (postbytes == 0)
dvb_filter_pes2ts(&dec->v_pes2ts, dec->v_pes,
dec->v_pes_length, 1);
break;
}
case 0x02: /* MainAudioStream */
if (output_pva) {
dec->audio_filter->feed->cb.ts(pva, length, NULL, 0,
&dec->audio_filter->feed->feed.ts, NULL);
return;
}
dvb_filter_pes2ts(&dec->a_pes2ts, &pva[8], length - 8,
pva[5] & 0x10);
break;
default:
printk("%s: unknown PVA type: %02x.\n", __func__,
pva[2]);
break;
}
}
static void ttusb_dec_process_filter(struct ttusb_dec *dec, u8 *packet,
int length)
{
struct list_head *item;
struct filter_info *finfo;
struct dvb_demux_filter *filter = NULL;
unsigned long flags;
u8 sid;
sid = packet[1];
spin_lock_irqsave(&dec->filter_info_list_lock, flags);
for (item = dec->filter_info_list.next; item != &dec->filter_info_list;
item = item->next) {
finfo = list_entry(item, struct filter_info, filter_info_list);
if (finfo->stream_id == sid) {
filter = finfo->filter;
break;
}
}
spin_unlock_irqrestore(&dec->filter_info_list_lock, flags);
if (filter)
filter->feed->cb.sec(&packet[2], length - 2, NULL, 0,
&filter->filter, NULL);
}
static void ttusb_dec_process_packet(struct ttusb_dec *dec)
{
int i;
u16 csum = 0;
u16 packet_id;
if (dec->packet_length % 2) {
printk("%s: odd sized packet - discarding\n", __func__);
return;
}
for (i = 0; i < dec->packet_length; i += 2)
csum ^= ((dec->packet[i] << 8) + dec->packet[i + 1]);
if (csum) {
printk("%s: checksum failed - discarding\n", __func__);
return;
}
packet_id = dec->packet[dec->packet_length - 4] << 8;
packet_id += dec->packet[dec->packet_length - 3];
if ((packet_id != dec->next_packet_id) && dec->next_packet_id) {
printk("%s: warning: lost packets between %u and %u\n",
__func__, dec->next_packet_id - 1, packet_id);
}
if (packet_id == 0xffff)
dec->next_packet_id = 0x8000;
else
dec->next_packet_id = packet_id + 1;
switch (dec->packet_type) {
case TTUSB_DEC_PACKET_PVA:
if (dec->pva_stream_count)
ttusb_dec_process_pva(dec, dec->packet,
dec->packet_payload_length);
break;
case TTUSB_DEC_PACKET_SECTION:
if (dec->filter_stream_count)
ttusb_dec_process_filter(dec, dec->packet,
dec->packet_payload_length);
break;
case TTUSB_DEC_PACKET_EMPTY:
break;
}
}
static void swap_bytes(u8 *b, int length)
{
length -= length % 2;
for (; length; b += 2, length -= 2)
swap(*b, *(b + 1));
}
static void ttusb_dec_process_urb_frame(struct ttusb_dec *dec, u8 *b,
int length)
{
swap_bytes(b, length);
while (length) {
switch (dec->packet_state) {
case 0:
case 1:
case 2:
if (*b++ == 0xaa)
dec->packet_state++;
else
dec->packet_state = 0;
length--;
break;
case 3:
if (*b == 0x00) {
dec->packet_state++;
dec->packet_length = 0;
} else if (*b != 0xaa) {
dec->packet_state = 0;
}
b++;
length--;
break;
case 4:
dec->packet[dec->packet_length++] = *b++;
if (dec->packet_length == 2) {
if (dec->packet[0] == 'A' &&
dec->packet[1] == 'V') {
dec->packet_type =
TTUSB_DEC_PACKET_PVA;
dec->packet_state++;
} else if (dec->packet[0] == 'S') {
dec->packet_type =
TTUSB_DEC_PACKET_SECTION;
dec->packet_state++;
} else if (dec->packet[0] == 0x00) {
dec->packet_type =
TTUSB_DEC_PACKET_EMPTY;
dec->packet_payload_length = 2;
dec->packet_state = 7;
} else {
printk("%s: unknown packet type: %02x%02x\n",
__func__,
dec->packet[0], dec->packet[1]);
dec->packet_state = 0;
}
}
length--;
break;
case 5:
dec->packet[dec->packet_length++] = *b++;
if (dec->packet_type == TTUSB_DEC_PACKET_PVA &&
dec->packet_length == 8) {
dec->packet_state++;
dec->packet_payload_length = 8 +
(dec->packet[6] << 8) +
dec->packet[7];
} else if (dec->packet_type ==
TTUSB_DEC_PACKET_SECTION &&
dec->packet_length == 5) {
dec->packet_state++;
dec->packet_payload_length = 5 +
((dec->packet[3] & 0x0f) << 8) +
dec->packet[4];
}
length--;
break;
case 6: {
int remainder = dec->packet_payload_length -
dec->packet_length;
if (length >= remainder) {
memcpy(dec->packet + dec->packet_length,
b, remainder);
dec->packet_length += remainder;
b += remainder;
length -= remainder;
dec->packet_state++;
} else {
memcpy(&dec->packet[dec->packet_length],
b, length);
dec->packet_length += length;
length = 0;
}
break;
}
case 7: {
int tail = 4;
dec->packet[dec->packet_length++] = *b++;
if (dec->packet_type == TTUSB_DEC_PACKET_SECTION &&
dec->packet_payload_length % 2)
tail++;
if (dec->packet_length ==
dec->packet_payload_length + tail) {
ttusb_dec_process_packet(dec);
dec->packet_state = 0;
}
length--;
break;
}
default:
printk("%s: illegal packet state encountered.\n",
__func__);
dec->packet_state = 0;
}
}
}
static void ttusb_dec_process_urb_frame_list(struct tasklet_struct *t)
{
struct ttusb_dec *dec = from_tasklet(dec, t, urb_tasklet);
struct list_head *item;
struct urb_frame *frame;
unsigned long flags;
while (1) {
spin_lock_irqsave(&dec->urb_frame_list_lock, flags);
if ((item = dec->urb_frame_list.next) != &dec->urb_frame_list) {
frame = list_entry(item, struct urb_frame,
urb_frame_list);
list_del(&frame->urb_frame_list);
} else {
spin_unlock_irqrestore(&dec->urb_frame_list_lock,
flags);
return;
}
spin_unlock_irqrestore(&dec->urb_frame_list_lock, flags);
ttusb_dec_process_urb_frame(dec, frame->data, frame->length);
kfree(frame);
}
}
static void ttusb_dec_process_urb(struct urb *urb)
{
struct ttusb_dec *dec = urb->context;
if (!urb->status) {
int i;
for (i = 0; i < FRAMES_PER_ISO_BUF; i++) {
struct usb_iso_packet_descriptor *d;
u8 *b;
int length;
struct urb_frame *frame;
d = &urb->iso_frame_desc[i];
b = urb->transfer_buffer + d->offset;
length = d->actual_length;
if ((frame = kmalloc(sizeof(struct urb_frame),
GFP_ATOMIC))) {
unsigned long flags;
memcpy(frame->data, b, length);
frame->length = length;
spin_lock_irqsave(&dec->urb_frame_list_lock,
flags);
list_add_tail(&frame->urb_frame_list,
&dec->urb_frame_list);
spin_unlock_irqrestore(&dec->urb_frame_list_lock,
flags);
tasklet_schedule(&dec->urb_tasklet);
}
}
} else {
/* -ENOENT is expected when unlinking urbs */
if (urb->status != -ENOENT)
dprintk("%s: urb error: %d\n", __func__,
urb->status);
}
if (dec->iso_stream_count)
usb_submit_urb(urb, GFP_ATOMIC);
}
static void ttusb_dec_setup_urbs(struct ttusb_dec *dec)
{
int i, j, buffer_offset = 0;
dprintk("%s\n", __func__);
for (i = 0; i < ISO_BUF_COUNT; i++) {
int frame_offset = 0;
struct urb *urb = dec->iso_urb[i];
urb->dev = dec->udev;
urb->context = dec;
urb->complete = ttusb_dec_process_urb;
urb->pipe = dec->in_pipe;
urb->transfer_flags = URB_ISO_ASAP;
urb->interval = 1;
urb->number_of_packets = FRAMES_PER_ISO_BUF;
urb->transfer_buffer_length = ISO_FRAME_SIZE *
FRAMES_PER_ISO_BUF;
urb->transfer_buffer = dec->iso_buffer + buffer_offset;
buffer_offset += ISO_FRAME_SIZE * FRAMES_PER_ISO_BUF;
for (j = 0; j < FRAMES_PER_ISO_BUF; j++) {
urb->iso_frame_desc[j].offset = frame_offset;
urb->iso_frame_desc[j].length = ISO_FRAME_SIZE;
frame_offset += ISO_FRAME_SIZE;
}
}
}
static void ttusb_dec_stop_iso_xfer(struct ttusb_dec *dec)
{
int i;
dprintk("%s\n", __func__);
if (mutex_lock_interruptible(&dec->iso_mutex))
return;
dec->iso_stream_count--;
if (!dec->iso_stream_count) {
for (i = 0; i < ISO_BUF_COUNT; i++)
usb_kill_urb(dec->iso_urb[i]);
}
mutex_unlock(&dec->iso_mutex);
}
/* Setting the interface of the DEC tends to take down the USB communications
* for a short period, so it's important not to call this function just before
* trying to talk to it.
*/
static int ttusb_dec_set_interface(struct ttusb_dec *dec,
enum ttusb_dec_interface interface)
{
int result = 0;
u8 b[] = { 0x05 };
if (interface != dec->interface) {
switch (interface) {
case TTUSB_DEC_INTERFACE_INITIAL:
result = usb_set_interface(dec->udev, 0, 0);
break;
case TTUSB_DEC_INTERFACE_IN:
result = ttusb_dec_send_command(dec, 0x80, sizeof(b),
b, NULL, NULL);
if (result)
return result;
result = usb_set_interface(dec->udev, 0, 8);
break;
case TTUSB_DEC_INTERFACE_OUT:
result = usb_set_interface(dec->udev, 0, 1);
break;
}
if (result)
return result;
dec->interface = interface;
}
return 0;
}
static int ttusb_dec_start_iso_xfer(struct ttusb_dec *dec)
{
int i, result;
dprintk("%s\n", __func__);
if (mutex_lock_interruptible(&dec->iso_mutex))
return -EAGAIN;
if (!dec->iso_stream_count) {
ttusb_dec_setup_urbs(dec);
dec->packet_state = 0;
dec->v_pes_postbytes = 0;
dec->next_packet_id = 0;
for (i = 0; i < ISO_BUF_COUNT; i++) {
if ((result = usb_submit_urb(dec->iso_urb[i],
GFP_ATOMIC))) {
printk("%s: failed urb submission %d: error %d\n",
__func__, i, result);
while (i) {
usb_kill_urb(dec->iso_urb[i - 1]);
i--;
}
mutex_unlock(&dec->iso_mutex);
return result;
}
}
}
dec->iso_stream_count++;
mutex_unlock(&dec->iso_mutex);
return 0;
}
static int ttusb_dec_start_ts_feed(struct dvb_demux_feed *dvbdmxfeed)
{
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
struct ttusb_dec *dec = dvbdmx->priv;
u8 b0[] = { 0x05 };
int result = 0;
dprintk("%s\n", __func__);
dprintk(" ts_type:");
if (dvbdmxfeed->ts_type & TS_DECODER)
dprintk(" TS_DECODER");
if (dvbdmxfeed->ts_type & TS_PACKET)
dprintk(" TS_PACKET");
if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
dprintk(" TS_PAYLOAD_ONLY");
dprintk("\n");
switch (dvbdmxfeed->pes_type) {
case DMX_PES_VIDEO:
dprintk(" pes_type: DMX_PES_VIDEO\n");
dec->pid[DMX_PES_PCR] = dvbdmxfeed->pid;
dec->pid[DMX_PES_VIDEO] = dvbdmxfeed->pid;
dec->video_filter = dvbdmxfeed->filter;
ttusb_dec_set_pids(dec);
break;
case DMX_PES_AUDIO:
dprintk(" pes_type: DMX_PES_AUDIO\n");
dec->pid[DMX_PES_AUDIO] = dvbdmxfeed->pid;
dec->audio_filter = dvbdmxfeed->filter;
ttusb_dec_set_pids(dec);
break;
case DMX_PES_TELETEXT:
dec->pid[DMX_PES_TELETEXT] = dvbdmxfeed->pid;
dprintk(" pes_type: DMX_PES_TELETEXT(not supported)\n");
return -ENOSYS;
case DMX_PES_PCR:
dprintk(" pes_type: DMX_PES_PCR\n");
dec->pid[DMX_PES_PCR] = dvbdmxfeed->pid;
ttusb_dec_set_pids(dec);
break;
case DMX_PES_OTHER:
dprintk(" pes_type: DMX_PES_OTHER(not supported)\n");
return -ENOSYS;
default:
dprintk(" pes_type: unknown (%d)\n", dvbdmxfeed->pes_type);
return -EINVAL;
}
result = ttusb_dec_send_command(dec, 0x80, sizeof(b0), b0, NULL, NULL);
if (result)
return result;
dec->pva_stream_count++;
return ttusb_dec_start_iso_xfer(dec);
}
static int ttusb_dec_start_sec_feed(struct dvb_demux_feed *dvbdmxfeed)
{
struct ttusb_dec *dec = dvbdmxfeed->demux->priv;
u8 b0[] = { 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0xff, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00 };
__be16 pid;
u8 c[COMMAND_PACKET_SIZE];
int c_length;
int result;
struct filter_info *finfo;
unsigned long flags;
u8 x = 1;
dprintk("%s\n", __func__);
pid = htons(dvbdmxfeed->pid);
memcpy(&b0[0], &pid, 2);
memcpy(&b0[4], &x, 1);
memcpy(&b0[5], &dvbdmxfeed->filter->filter.filter_value[0], 1);
result = ttusb_dec_send_command(dec, 0x60, sizeof(b0), b0,
&c_length, c);
if (!result) {
if (c_length == 2) {
if (!(finfo = kmalloc(sizeof(struct filter_info),
GFP_ATOMIC)))
return -ENOMEM;
finfo->stream_id = c[1];
finfo->filter = dvbdmxfeed->filter;
spin_lock_irqsave(&dec->filter_info_list_lock, flags);
list_add_tail(&finfo->filter_info_list,
&dec->filter_info_list);
spin_unlock_irqrestore(&dec->filter_info_list_lock,
flags);
dvbdmxfeed->priv = finfo;
dec->filter_stream_count++;
return ttusb_dec_start_iso_xfer(dec);
}
return -EAGAIN;
} else
return result;
}
static int ttusb_dec_start_feed(struct dvb_demux_feed *dvbdmxfeed)
{
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
dprintk("%s\n", __func__);
if (!dvbdmx->dmx.frontend)
return -EINVAL;
dprintk(" pid: 0x%04X\n", dvbdmxfeed->pid);
switch (dvbdmxfeed->type) {
case DMX_TYPE_TS:
return ttusb_dec_start_ts_feed(dvbdmxfeed);
case DMX_TYPE_SEC:
return ttusb_dec_start_sec_feed(dvbdmxfeed);
default:
dprintk(" type: unknown (%d)\n", dvbdmxfeed->type);
return -EINVAL;
}
}
static int ttusb_dec_stop_ts_feed(struct dvb_demux_feed *dvbdmxfeed)
{
struct ttusb_dec *dec = dvbdmxfeed->demux->priv;
u8 b0[] = { 0x00 };
ttusb_dec_send_command(dec, 0x81, sizeof(b0), b0, NULL, NULL);
dec->pva_stream_count--;
ttusb_dec_stop_iso_xfer(dec);
return 0;
}
static int ttusb_dec_stop_sec_feed(struct dvb_demux_feed *dvbdmxfeed)
{
struct ttusb_dec *dec = dvbdmxfeed->demux->priv;
u8 b0[] = { 0x00, 0x00 };
struct filter_info *finfo = (struct filter_info *)dvbdmxfeed->priv;
unsigned long flags;
b0[1] = finfo->stream_id;
spin_lock_irqsave(&dec->filter_info_list_lock, flags);
list_del(&finfo->filter_info_list);
spin_unlock_irqrestore(&dec->filter_info_list_lock, flags);
kfree(finfo);
ttusb_dec_send_command(dec, 0x62, sizeof(b0), b0, NULL, NULL);
dec->filter_stream_count--;
ttusb_dec_stop_iso_xfer(dec);
return 0;
}
static int ttusb_dec_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
{
dprintk("%s\n", __func__);
switch (dvbdmxfeed->type) {
case DMX_TYPE_TS:
return ttusb_dec_stop_ts_feed(dvbdmxfeed);
case DMX_TYPE_SEC:
return ttusb_dec_stop_sec_feed(dvbdmxfeed);
}
return 0;
}
static void ttusb_dec_free_iso_urbs(struct ttusb_dec *dec)
{
int i;
dprintk("%s\n", __func__);
for (i = 0; i < ISO_BUF_COUNT; i++)
usb_free_urb(dec->iso_urb[i]);
kfree(dec->iso_buffer);
}
static int ttusb_dec_alloc_iso_urbs(struct ttusb_dec *dec)
{
int i;
dprintk("%s\n", __func__);
dec->iso_buffer = kcalloc(FRAMES_PER_ISO_BUF * ISO_BUF_COUNT,
ISO_FRAME_SIZE, GFP_KERNEL);
if (!dec->iso_buffer)
return -ENOMEM;
for (i = 0; i < ISO_BUF_COUNT; i++) {
struct urb *urb;
if (!(urb = usb_alloc_urb(FRAMES_PER_ISO_BUF, GFP_ATOMIC))) {
ttusb_dec_free_iso_urbs(dec);
return -ENOMEM;
}
dec->iso_urb[i] = urb;
}
ttusb_dec_setup_urbs(dec);
return 0;
}
static void ttusb_dec_init_tasklet(struct ttusb_dec *dec)
{
spin_lock_init(&dec->urb_frame_list_lock);
INIT_LIST_HEAD(&dec->urb_frame_list);
tasklet_setup(&dec->urb_tasklet, ttusb_dec_process_urb_frame_list);
}
static int ttusb_init_rc( struct ttusb_dec *dec)
{
struct input_dev *input_dev;
u8 b[] = { 0x00, 0x01 };
int i;
int err;
usb_make_path(dec->udev, dec->rc_phys, sizeof(dec->rc_phys));
strlcat(dec->rc_phys, "/input0", sizeof(dec->rc_phys));
input_dev = input_allocate_device();
if (!input_dev)
return -ENOMEM;
input_dev->name = "ttusb_dec remote control";
input_dev->phys = dec->rc_phys;
input_dev->evbit[0] = BIT_MASK(EV_KEY);
input_dev->keycodesize = sizeof(u16);
input_dev->keycodemax = 0x1a;
input_dev->keycode = rc_keys;
for (i = 0; i < ARRAY_SIZE(rc_keys); i++)
set_bit(rc_keys[i], input_dev->keybit);
err = input_register_device(input_dev);
if (err) {
input_free_device(input_dev);
return err;
}
dec->rc_input_dev = input_dev;
if (usb_submit_urb(dec->irq_urb, GFP_KERNEL))
printk("%s: usb_submit_urb failed\n",__func__);
/* enable irq pipe */
ttusb_dec_send_command(dec,0xb0,sizeof(b),b,NULL,NULL);
return 0;
}
static void ttusb_dec_init_v_pes(struct ttusb_dec *dec)
{
dprintk("%s\n", __func__);
dec->v_pes[0] = 0x00;
dec->v_pes[1] = 0x00;
dec->v_pes[2] = 0x01;
dec->v_pes[3] = 0xe0;
}
static int ttusb_dec_init_usb(struct ttusb_dec *dec)
{
int result;
dprintk("%s\n", __func__);
mutex_init(&dec->usb_mutex);
mutex_init(&dec->iso_mutex);
dec->command_pipe = usb_sndbulkpipe(dec->udev, COMMAND_PIPE);
dec->result_pipe = usb_rcvbulkpipe(dec->udev, RESULT_PIPE);
dec->in_pipe = usb_rcvisocpipe(dec->udev, IN_PIPE);
dec->out_pipe = usb_sndisocpipe(dec->udev, OUT_PIPE);
dec->irq_pipe = usb_rcvintpipe(dec->udev, IRQ_PIPE);
if(enable_rc) {
dec->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
if(!dec->irq_urb) {
return -ENOMEM;
}
dec->irq_buffer = usb_alloc_coherent(dec->udev,IRQ_PACKET_SIZE,
GFP_KERNEL, &dec->irq_dma_handle);
if(!dec->irq_buffer) {
usb_free_urb(dec->irq_urb);
return -ENOMEM;
}
usb_fill_int_urb(dec->irq_urb, dec->udev,dec->irq_pipe,
dec->irq_buffer, IRQ_PACKET_SIZE,
ttusb_dec_handle_irq, dec, 1);
dec->irq_urb->transfer_dma = dec->irq_dma_handle;
dec->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
}
result = ttusb_dec_alloc_iso_urbs(dec);
if (result) {
usb_free_urb(dec->irq_urb);
usb_free_coherent(dec->udev, IRQ_PACKET_SIZE,
dec->irq_buffer, dec->irq_dma_handle);
}
return result;
}
static int ttusb_dec_boot_dsp(struct ttusb_dec *dec)
{
int i, j, actual_len, result, size, trans_count;
u8 b0[] = { 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x61, 0x00 };
u8 b1[] = { 0x61 };
u8 *b;
char idstring[21];
const u8 *firmware = NULL;
size_t firmware_size = 0;
u16 firmware_csum = 0;
__be16 firmware_csum_ns;
__be32 firmware_size_nl;
u32 crc32_csum, crc32_check;
__be32 tmp;
const struct firmware *fw_entry = NULL;
dprintk("%s\n", __func__);
result = request_firmware(&fw_entry, dec->firmware_name, &dec->udev->dev);
if (result) {
printk(KERN_ERR "%s: Firmware (%s) unavailable.\n",
__func__, dec->firmware_name);
return result;
}
firmware = fw_entry->data;
firmware_size = fw_entry->size;
if (firmware_size < 60) {
printk("%s: firmware size too small for DSP code (%zu < 60).\n",
__func__, firmware_size);
release_firmware(fw_entry);
return -ENOENT;
}
/* a 32 bit checksum over the first 56 bytes of the DSP Code is stored
at offset 56 of file, so use it to check if the firmware file is
valid. */
crc32_csum = crc32(~0L, firmware, 56) ^ ~0L;
memcpy(&tmp, &firmware[56], 4);
crc32_check = ntohl(tmp);
if (crc32_csum != crc32_check) {
printk("%s: crc32 check of DSP code failed (calculated 0x%08x != 0x%08x in file), file invalid.\n",
__func__, crc32_csum, crc32_check);
release_firmware(fw_entry);
return -ENOENT;
}
memcpy(idstring, &firmware[36], 20);
idstring[20] = '\0';
printk(KERN_INFO "ttusb_dec: found DSP code \"%s\".\n", idstring);
firmware_size_nl = htonl(firmware_size);
memcpy(b0, &firmware_size_nl, 4);
firmware_csum = crc16(~0, firmware, firmware_size) ^ ~0;
firmware_csum_ns = htons(firmware_csum);
memcpy(&b0[6], &firmware_csum_ns, 2);
result = ttusb_dec_send_command(dec, 0x41, sizeof(b0), b0, NULL, NULL);
if (result) {
release_firmware(fw_entry);
return result;
}
trans_count = 0;
j = 0;
b = kmalloc(ARM_PACKET_SIZE, GFP_KERNEL);
if (b == NULL) {
release_firmware(fw_entry);
return -ENOMEM;
}
for (i = 0; i < firmware_size; i += COMMAND_PACKET_SIZE) {
size = firmware_size - i;
if (size > COMMAND_PACKET_SIZE)
size = COMMAND_PACKET_SIZE;
b[j + 0] = 0xaa;
b[j + 1] = trans_count++;
b[j + 2] = 0xf0;
b[j + 3] = size;
memcpy(&b[j + 4], &firmware[i], size);
j += COMMAND_PACKET_SIZE + 4;
if (j >= ARM_PACKET_SIZE) {
result = usb_bulk_msg(dec->udev, dec->command_pipe, b,
ARM_PACKET_SIZE, &actual_len,
100);
j = 0;
} else if (size < COMMAND_PACKET_SIZE) {
result = usb_bulk_msg(dec->udev, dec->command_pipe, b,
j - COMMAND_PACKET_SIZE + size,
&actual_len, 100);
}
}
result = ttusb_dec_send_command(dec, 0x43, sizeof(b1), b1, NULL, NULL);
release_firmware(fw_entry);
kfree(b);
return result;
}
static int ttusb_dec_init_stb(struct ttusb_dec *dec)
{
int result;
unsigned int mode = 0, model = 0, version = 0;
dprintk("%s\n", __func__);
result = ttusb_dec_get_stb_state(dec, &mode, &model, &version);
if (result)
return result;
if (!mode) {
if (version == 0xABCDEFAB)
printk(KERN_INFO "ttusb_dec: no version info in Firmware\n");
else
printk(KERN_INFO "ttusb_dec: Firmware %x.%02x%c%c\n",
version >> 24, (version >> 16) & 0xff,
(version >> 8) & 0xff, version & 0xff);
result = ttusb_dec_boot_dsp(dec);
if (result)
return result;
} else {
/* We can't trust the USB IDs that some firmwares
give the box */
switch (model) {
case 0x00070001:
case 0x00070008:
case 0x0007000c:
ttusb_dec_set_model(dec, TTUSB_DEC3000S);
break;
case 0x00070009:
case 0x00070013:
ttusb_dec_set_model(dec, TTUSB_DEC2000T);
break;
case 0x00070011:
ttusb_dec_set_model(dec, TTUSB_DEC2540T);
break;
default:
printk(KERN_ERR "%s: unknown model returned by firmware (%08x) - please report\n",
__func__, model);
return -ENOENT;
}
if (version >= 0x01770000)
dec->can_playback = 1;
}
return 0;
}
static int ttusb_dec_init_dvb(struct ttusb_dec *dec)
{
int result;
dprintk("%s\n", __func__);
if ((result = dvb_register_adapter(&dec->adapter,
dec->model_name, THIS_MODULE,
&dec->udev->dev,
adapter_nr)) < 0) {
printk("%s: dvb_register_adapter failed: error %d\n",
__func__, result);
return result;
}
dec->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
dec->demux.priv = (void *)dec;
dec->demux.filternum = 31;
dec->demux.feednum = 31;
dec->demux.start_feed = ttusb_dec_start_feed;
dec->demux.stop_feed = ttusb_dec_stop_feed;
dec->demux.write_to_decoder = NULL;
if ((result = dvb_dmx_init(&dec->demux)) < 0) {
printk("%s: dvb_dmx_init failed: error %d\n", __func__,
result);
dvb_unregister_adapter(&dec->adapter);
return result;
}
dec->dmxdev.filternum = 32;
dec->dmxdev.demux = &dec->demux.dmx;
dec->dmxdev.capabilities = 0;
if ((result = dvb_dmxdev_init(&dec->dmxdev, &dec->adapter)) < 0) {
printk("%s: dvb_dmxdev_init failed: error %d\n",
__func__, result);
dvb_dmx_release(&dec->demux);
dvb_unregister_adapter(&dec->adapter);
return result;
}
dec->frontend.source = DMX_FRONTEND_0;
if ((result = dec->demux.dmx.add_frontend(&dec->demux.dmx,
&dec->frontend)) < 0) {
printk("%s: dvb_dmx_init failed: error %d\n", __func__,
result);
dvb_dmxdev_release(&dec->dmxdev);
dvb_dmx_release(&dec->demux);
dvb_unregister_adapter(&dec->adapter);
return result;
}
if ((result = dec->demux.dmx.connect_frontend(&dec->demux.dmx,
&dec->frontend)) < 0) {
printk("%s: dvb_dmx_init failed: error %d\n", __func__,
result);
dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend);
dvb_dmxdev_release(&dec->dmxdev);
dvb_dmx_release(&dec->demux);
dvb_unregister_adapter(&dec->adapter);
return result;
}
dvb_net_init(&dec->adapter, &dec->dvb_net, &dec->demux.dmx);
return 0;
}
static void ttusb_dec_exit_dvb(struct ttusb_dec *dec)
{
dprintk("%s\n", __func__);
dvb_net_release(&dec->dvb_net);
dec->demux.dmx.close(&dec->demux.dmx);
dec->demux.dmx.remove_frontend(&dec->demux.dmx, &dec->frontend);
dvb_dmxdev_release(&dec->dmxdev);
dvb_dmx_release(&dec->demux);
if (dec->fe) {
dvb_unregister_frontend(dec->fe);
dvb_frontend_detach(dec->fe);
}
dvb_unregister_adapter(&dec->adapter);
}
static void ttusb_dec_exit_rc(struct ttusb_dec *dec)
{
dprintk("%s\n", __func__);
if (dec->rc_input_dev) {
input_unregister_device(dec->rc_input_dev);
dec->rc_input_dev = NULL;
}
}
static void ttusb_dec_exit_usb(struct ttusb_dec *dec)
{
int i;
dprintk("%s\n", __func__);
if (enable_rc) {
/* we have to check whether the irq URB is already submitted.
* As the irq is submitted after the interface is changed,
* this is the best method i figured out.
* Any others?*/
if (dec->interface == TTUSB_DEC_INTERFACE_IN)
usb_kill_urb(dec->irq_urb);
usb_free_urb(dec->irq_urb);
usb_free_coherent(dec->udev, IRQ_PACKET_SIZE,
dec->irq_buffer, dec->irq_dma_handle);
}
dec->iso_stream_count = 0;
for (i = 0; i < ISO_BUF_COUNT; i++)
usb_kill_urb(dec->iso_urb[i]);
ttusb_dec_free_iso_urbs(dec);
}
static void ttusb_dec_exit_tasklet(struct ttusb_dec *dec)
{
struct list_head *item;
struct urb_frame *frame;
tasklet_kill(&dec->urb_tasklet);
while ((item = dec->urb_frame_list.next) != &dec->urb_frame_list) {
frame = list_entry(item, struct urb_frame, urb_frame_list);
list_del(&frame->urb_frame_list);
kfree(frame);
}
}
static void ttusb_dec_init_filters(struct ttusb_dec *dec)
{
INIT_LIST_HEAD(&dec->filter_info_list);
spin_lock_init(&dec->filter_info_list_lock);
}
static void ttusb_dec_exit_filters(struct ttusb_dec *dec)
{
struct list_head *item;
struct filter_info *finfo;
while ((item = dec->filter_info_list.next) != &dec->filter_info_list) {
finfo = list_entry(item, struct filter_info, filter_info_list);
list_del(&finfo->filter_info_list);
kfree(finfo);
}
}
static int fe_send_command(struct dvb_frontend* fe, const u8 command,
int param_length, const u8 params[],
int *result_length, u8 cmd_result[])
{
struct ttusb_dec* dec = fe->dvb->priv;
return ttusb_dec_send_command(dec, command, param_length, params, result_length, cmd_result);
}
static const struct ttusbdecfe_config fe_config = {
.send_command = fe_send_command
};
static int ttusb_dec_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *udev;
struct ttusb_dec *dec;
int result;
dprintk("%s\n", __func__);
udev = interface_to_usbdev(intf);
if (!(dec = kzalloc(sizeof(struct ttusb_dec), GFP_KERNEL))) {
printk("%s: couldn't allocate memory.\n", __func__);
return -ENOMEM;
}
usb_set_intfdata(intf, (void *)dec);
switch (id->idProduct) {
case 0x1006:
ttusb_dec_set_model(dec, TTUSB_DEC3000S);
break;
case 0x1008:
ttusb_dec_set_model(dec, TTUSB_DEC2000T);
break;
case 0x1009:
ttusb_dec_set_model(dec, TTUSB_DEC2540T);
break;
}
dec->udev = udev;
result = ttusb_dec_init_usb(dec);
if (result)
goto err_usb;
result = ttusb_dec_init_stb(dec);
if (result)
goto err_stb;
result = ttusb_dec_init_dvb(dec);
if (result)
goto err_stb;
dec->adapter.priv = dec;
switch (id->idProduct) {
case 0x1006:
dec->fe = ttusbdecfe_dvbs_attach(&fe_config);
break;
case 0x1008:
case 0x1009:
dec->fe = ttusbdecfe_dvbt_attach(&fe_config);
break;
}
if (dec->fe == NULL) {
printk("dvb-ttusb-dec: A frontend driver was not found for device [%04x:%04x]\n",
le16_to_cpu(dec->udev->descriptor.idVendor),
le16_to_cpu(dec->udev->descriptor.idProduct));
} else {
if (dvb_register_frontend(&dec->adapter, dec->fe)) {
printk("budget-ci: Frontend registration failed!\n");
if (dec->fe->ops.release)
dec->fe->ops.release(dec->fe);
dec->fe = NULL;
}
}
ttusb_dec_init_v_pes(dec);
ttusb_dec_init_filters(dec);
ttusb_dec_init_tasklet(dec);
dec->active = 1;
ttusb_dec_set_interface(dec, TTUSB_DEC_INTERFACE_IN);
if (enable_rc)
ttusb_init_rc(dec);
return 0;
err_stb:
ttusb_dec_exit_usb(dec);
err_usb:
kfree(dec);
return result;
}
static void ttusb_dec_disconnect(struct usb_interface *intf)
{
struct ttusb_dec *dec = usb_get_intfdata(intf);
usb_set_intfdata(intf, NULL);
dprintk("%s\n", __func__);
if (dec->active) {
ttusb_dec_exit_tasklet(dec);
ttusb_dec_exit_filters(dec);
if(enable_rc)
ttusb_dec_exit_rc(dec);
ttusb_dec_exit_usb(dec);
ttusb_dec_exit_dvb(dec);
}
kfree(dec);
}
static void ttusb_dec_set_model(struct ttusb_dec *dec,
enum ttusb_dec_model model)
{
dec->model = model;
switch (model) {
case TTUSB_DEC2000T:
dec->model_name = "DEC2000-t";
dec->firmware_name = "dvb-ttusb-dec-2000t.fw";
break;
case TTUSB_DEC2540T:
dec->model_name = "DEC2540-t";
dec->firmware_name = "dvb-ttusb-dec-2540t.fw";
break;
case TTUSB_DEC3000S:
dec->model_name = "DEC3000-s";
dec->firmware_name = "dvb-ttusb-dec-3000s.fw";
break;
}
}
static const struct usb_device_id ttusb_dec_table[] = {
{USB_DEVICE(0x0b48, 0x1006)}, /* DEC3000-s */
/*{USB_DEVICE(0x0b48, 0x1007)}, Unconfirmed */
{USB_DEVICE(0x0b48, 0x1008)}, /* DEC2000-t */
{USB_DEVICE(0x0b48, 0x1009)}, /* DEC2540-t */
{}
};
static struct usb_driver ttusb_dec_driver = {
.name = "ttusb-dec",
.probe = ttusb_dec_probe,
.disconnect = ttusb_dec_disconnect,
.id_table = ttusb_dec_table,
};
module_usb_driver(ttusb_dec_driver);
MODULE_AUTHOR("Alex Woods <linux-dvb@giblets.org>");
MODULE_DESCRIPTION(DRIVER_NAME);
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(usb, ttusb_dec_table);
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