--- /dev/null
+/*
+ * TTUSB DEC Driver
+ *
+ * Copyright (C) 2003-2004 Alex Woods <linux-dvb@giblets.org>
+ * IR support by Peter Beutner <p.beutner@gmx.net>
+ *
+ * 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/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 "dmxdev.h"
+#include "dvb_demux.h"
+#include "dvb_filter.h"
+#include "dvb_frontend.h"
+#include "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
+};
+
+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;
+ dma_addr_t iso_dma_handle;
+ 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 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;
+
+ 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 intervall 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*/
+ dprintk("%s:rc signal:%d\n", __func__, buffer[4]);
+ input_report_key(dec->rc_input_dev, rc_keys[buffer[4] - 1], 1);
+ input_sync(dec->rc_input_dev);
+ input_report_key(dec->rc_input_dev, rc_keys[buffer[4] - 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, i;
+ u8 *b;
+
+ dprintk("%s\n", __func__);
+
+ b = kmalloc(COMMAND_PACKET_SIZE + 4, GFP_KERNEL);
+ if (!b)
+ return -ENOMEM;
+
+ if ((result = mutex_lock_interruptible(&dec->usb_mutex))) {
+ kfree(b);
+ printk("%s: Failed to lock usb mutex.\n", __func__);
+ return result;
+ }
+
+ 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("%s: command: ", __func__);
+ for (i = 0; i < param_length + 4; i++)
+ printk("0x%02X ", b[i]);
+ printk("\n");
+ }
+
+ 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);
+ mutex_unlock(&dec->usb_mutex);
+ kfree(b);
+ return result;
+ }
+
+ 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);
+ mutex_unlock(&dec->usb_mutex);
+ kfree(b);
+ return result;
+ } else {
+ if (debug) {
+ printk("%s: result: ", __func__);
+ for (i = 0; i < actual_len; i++)
+ printk("0x%02X ", b[i]);
+ printk("\n");
+ }
+
+ if (result_length)
+ *result_length = b[3];
+ if (cmd_result && b[3] > 0)
+ memcpy(cmd_result, &b[4], b[3]);
+
+ mutex_unlock(&dec->usb_mutex);
+
+ kfree(b);
+ return 0;
+ }
+}
+
+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,
+ DMX_OK);
+
+ 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,
+ DMX_OK);
+
+ 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, DMX_OK);
+ 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, DMX_OK);
+ 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, DMX_OK);
+}
+
+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)
+{
+ u8 c;
+
+ length -= length % 2;
+ for (; length; b += 2, length -= 2) {
+ c = *b;
+ *b = *(b + 1);
+ *(b + 1) = c;
+ }
+}
+
+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(unsigned long data)
+{
+ struct ttusb_dec *dec = (struct ttusb_dec *)data;
+ 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);
+ break;
+
+ case DMX_TYPE_SEC:
+ return ttusb_dec_start_sec_feed(dvbdmxfeed);
+ break;
+
+ 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);
+ break;
+
+ case DMX_TYPE_SEC:
+ return ttusb_dec_stop_sec_feed(dvbdmxfeed);
+ break;
+ }
+
+ 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]);
+
+ pci_free_consistent(NULL,
+ ISO_FRAME_SIZE * (FRAMES_PER_ISO_BUF *
+ ISO_BUF_COUNT),
+ dec->iso_buffer, dec->iso_dma_handle);
+}
+
+static int ttusb_dec_alloc_iso_urbs(struct ttusb_dec *dec)
+{
+ int i;
+
+ dprintk("%s\n", __func__);
+
+ dec->iso_buffer = pci_zalloc_consistent(NULL,
+ ISO_FRAME_SIZE * (FRAMES_PER_ISO_BUF * ISO_BUF_COUNT),
+ &dec->iso_dma_handle);
+
+ if (!dec->iso_buffer) {
+ dprintk("%s: pci_alloc_consistent - not enough memory\n",
+ __func__);
+ 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_init(&dec->urb_tasklet, ttusb_dec_process_urb_frame_list,
+ (unsigned long)dec);
+}
+
+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);
+ if (dec->fe->ops.release)
+ dec->fe->ops.release(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 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 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);
Code Review / kvmfornfv.git / blobdiff