/*
* TerraTec Cinergy T²/qanu USB2 DVB-T adapter.
*
* Copyright (C) 2004 Daniel Mack <daniel@qanu.de> and
* Holger Waechtler <holger@qanu.de>
*
* Protocol Spec published on http://qanu.de/specs/terratec_cinergyT2.pdf
*
* 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/config.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/pci.h>
#include <linux/input.h>
#include <linux/dvb/frontend.h>
#include <linux/mutex.h>
#include "dmxdev.h"
#include "dvb_demux.h"
#include "dvb_net.h"
#ifdef CONFIG_DVB_CINERGYT2_TUNING
#define STREAM_URB_COUNT (CONFIG_DVB_CINERGYT2_STREAM_URB_COUNT)
#define STREAM_BUF_SIZE (CONFIG_DVB_CINERGYT2_STREAM_BUF_SIZE)
#define QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_QUERY_INTERVAL)
#ifdef CONFIG_DVB_CINERGYT2_ENABLE_RC_INPUT_DEVICE
#define RC_QUERY_INTERVAL (CONFIG_DVB_CINERGYT2_RC_QUERY_INTERVAL)
#define ENABLE_RC (1)
#endif
#else
#define STREAM_URB_COUNT (32)
#define STREAM_BUF_SIZE (512) /* bytes */
#define ENABLE_RC (1)
#define RC_QUERY_INTERVAL (50) /* milliseconds */
#define QUERY_INTERVAL (333) /* milliseconds */
#endif
#define DRIVER_NAME "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver"
static int debug;
module_param_named(debug, debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
#define dprintk(level, args...) \
do { \
if ((debug & level)) { \
printk("%s: %s(): ", KBUILD_MODNAME, \
__FUNCTION__); \
printk(args); } \
} while (0)
enum cinergyt2_ep1_cmd {
CINERGYT2_EP1_PID_TABLE_RESET = 0x01,
CINERGYT2_EP1_PID_SETUP = 0x02,
CINERGYT2_EP1_CONTROL_STREAM_TRANSFER = 0x03,
CINERGYT2_EP1_SET_TUNER_PARAMETERS = 0x04,
CINERGYT2_EP1_GET_TUNER_STATUS = 0x05,
CINERGYT2_EP1_START_SCAN = 0x06,
CINERGYT2_EP1_CONTINUE_SCAN = 0x07,
CINERGYT2_EP1_GET_RC_EVENTS = 0x08,
CINERGYT2_EP1_SLEEP_MODE = 0x09
};
struct dvbt_set_parameters_msg {
uint8_t cmd;
uint32_t freq;
uint8_t bandwidth;
uint16_t tps;
uint8_t flags;
} __attribute__((packed));
struct dvbt_get_status_msg {
uint32_t freq;
uint8_t bandwidth;
uint16_t tps;
uint8_t flags;
uint16_t gain;
uint8_t snr;
uint32_t viterbi_error_rate;
uint32_t rs_error_rate;
uint32_t uncorrected_block_count;
uint8_t lock_bits;
uint8_t prev_lock_bits;
} __attribute__((packed));
static struct dvb_frontend_info cinergyt2_fe_info = {
.name = DRIVER_NAME,
.type = FE_OFDM,
.frequency_min = 174000000,
.frequency_max = 862000000,
.frequency_stepsize = 166667,
.caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
FE_CAN_FEC_AUTO |
FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER | FE_CAN_MUTE_TS
};
struct cinergyt2 {
struct dvb_demux demux;
struct usb_device *udev;
struct mutex sem;
struct dvb_adapter adapter;
struct dvb_device *fedev;
struct dmxdev dmxdev;
struct dvb_net dvbnet;
int streaming;
int sleeping;
struct dvbt_set_parameters_msg param;
struct dvbt_get_status_msg status;
struct work_struct query_work;
wait_queue_head_t poll_wq;
int pending_fe_events;
int disconnect_pending;
atomic_t inuse;
void *streambuf;
dma_addr_t streambuf_dmahandle;
struct urb *stream_urb [STREAM_URB_COUNT];
#ifdef ENABLE_RC
struct input_dev *rc_input_dev;
char phys[64];
struct work_struct rc_query_work;
int rc_input_event;
u32 rc_last_code;
unsigned long last_event_jiffies;
#endif
};
enum {
CINERGYT2_RC_EVENT_TYPE_NONE = 0x00,
CINERGYT2_RC_EVENT_TYPE_NEC = 0x01,
CINERGYT2_RC_EVENT_TYPE_RC5 = 0x02
};
struct cinergyt2_rc_event {
char type;
uint32_t value;
} __attribute__((packed));
static const uint32_t rc_keys[] = {
CINERGYT2_RC_EVENT_TYPE_NEC, 0xfe01eb04, KEY_POWER,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xfd02eb04, KEY_1,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xfc03eb04, KEY_2,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xfb04eb04, KEY_3,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xfa05eb04, KEY_4,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xf906eb04, KEY_5,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xf807eb04, KEY_6,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xf708eb04, KEY_7,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xf609eb04, KEY_8,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xf50aeb04, KEY_9,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xf30ceb04, KEY_0,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xf40beb04, KEY_VIDEO,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xf20deb04, KEY_REFRESH,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xf10eeb04, KEY_SELECT,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xf00feb04, KEY_EPG,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xef10eb04, KEY_UP,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xeb14eb04, KEY_DOWN,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xee11eb04, KEY_LEFT,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xec13eb04, KEY_RIGHT,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xed12eb04, KEY_OK,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xea15eb04, KEY_TEXT,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xe916eb04, KEY_INFO,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xe817eb04, KEY_RED,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xe718eb04, KEY_GREEN,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xe619eb04, KEY_YELLOW,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xe51aeb04, KEY_BLUE,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xe31ceb04, KEY_VOLUMEUP,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xe11eeb04, KEY_VOLUMEDOWN,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xe21deb04, KEY_MUTE,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xe41beb04, KEY_CHANNELUP,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xe01feb04, KEY_CHANNELDOWN,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xbf40eb04, KEY_PAUSE,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xb34ceb04, KEY_PLAY,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xa758eb04, KEY_RECORD,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xab54eb04, KEY_PREVIOUS,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xb748eb04, KEY_STOP,
CINERGYT2_RC_EVENT_TYPE_NEC, 0xa35ceb04, KEY_NEXT
};
static int cinergyt2_command (struct cinergyt2 *cinergyt2,
char *send_buf, int send_buf_len,
char *recv_buf, int recv_buf_len)
{
int actual_len;
char dummy;
int ret;
ret = usb_bulk_msg(cinergyt2->udev, usb_sndbulkpipe(cinergyt2->udev, 1),
send_buf, send_buf_len, &actual_len, 1000);
if (ret)
dprintk(1, "usb_bulk_msg (send) failed, err %i\n", ret);
if (!recv_buf)
recv_buf = &dummy;
ret = usb_bulk_msg(cinergyt2->udev, usb_rcvbulkpipe(cinergyt2->udev, 1),
recv_buf, recv_buf_len, &actual_len, 1000);
if (ret)
dprintk(1, "usb_bulk_msg (read) failed, err %i\n", ret);
return ret ? ret : actual_len;
}
static void cinergyt2_control_stream_transfer (struct cinergyt2 *cinergyt2, int enable)
{
char buf [] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
}
static void cinergyt2_sleep (struct cinergyt2 *cinergyt2, int sleep)
{
char buf [] = { CINERGYT2_EP1_SLEEP_MODE, sleep ? 1 : 0 };
cinergyt2_command(cinergyt2, buf, sizeof(buf), NULL, 0);
cinergyt2->sleeping = sleep;
}
static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs);
static int cinergyt2_submit_stream_urb (struct cinergyt2 *cinergyt2, struct urb *urb)
{
int err;
usb_fill_bulk_urb(urb,
cinergyt2->udev,
usb_rcvbulkpipe(cinergyt2->udev, 0x2),
urb->transfer_buffer,
STREAM_BUF_SIZE,
cinergyt2_stream_irq,
cinergyt2);
if ((err = usb_submit_urb(urb, GFP_ATOMIC)))
dprintk(1, "urb submission failed (err = %i)!\n", err);
return err;
}
static void cinergyt2_stream_irq (struct urb *urb, struct pt_regs *regs)
{
struct cinergyt2 *cinergyt2 = urb->context;
if (urb->actual_length > 0)
dvb_dmx_swfilter(&cinergyt2->demux,
urb->transfer_buffer, urb->actual_length);
if (cinergyt2->streaming)
cinergyt2_submit_stream_urb(cinergyt2, urb);
}
static void cinergyt2_free_stream_urbs (struct cinergyt2 *cinergyt2)
{
int i;
for (i=0; i<STREAM_URB_COUNT; i++)
if (cinergyt2->stream_urb[i])
usb_free_urb(cinergyt2->stream_urb[i]);
usb_buffer_free(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
cinergyt2->streambuf, cinergyt2->streambuf_dmahandle);
}
static int cinergyt2_alloc_stream_urbs (struct cinergyt2 *cinergyt2)
{
int i;
cinergyt2->streambuf = usb_buffer_alloc(cinergyt2->udev, STREAM_URB_COUNT*STREAM_BUF_SIZE,
SLAB_KERNEL, &cinergyt2->streambuf_dmahandle);
if (!cinergyt2->streambuf) {
dprintk(1, "failed to alloc consistent stream memory area, bailing out!\n");
return -ENOMEM;
}
memset(cinergyt2->streambuf, 0, STREAM_URB_COUNT*STREAM_BUF_SIZE);
for (i=0; i<STREAM_URB_COUNT; i++) {
struct urb *urb;
if (!(urb = usb_alloc_urb(0, GFP_ATOMIC))) {
dprintk(1, "failed to alloc consistent stream urbs, bailing out!\n");
cinergyt2_free_stream_urbs(cinergyt2);
return -ENOMEM;
}
urb->transfer_buffer = cinergyt2->streambuf + i * STREAM_BUF_SIZE;
urb->transfer_buffer_length = STREAM_BUF_SIZE;
cinergyt2->stream_urb[i] = urb;
}
return 0;
}
static void cinergyt2_stop_stream_xfer (struct cinergyt2 *cinergyt2)
{
int i;
cinergyt2_control_stream_transfer(cinergyt2, 0);
for (i=0; i<STREAM_URB_COUNT; i++)
if (cinergyt2->stream_urb[i])
usb_kill_urb(cinergyt2->stream_urb[i]);
}
static int cinergyt2_start_stream_xfer (struct cinergyt2 *cinergyt2)
{
int i, err;
for (i=0; i<STREAM_URB_COUNT; i++) {
if ((err = cinergyt2_submit_stream_urb(cinergyt2, cinergyt2->stream_urb[i]))) {
cinergyt2_stop_stream_xfer(cinergyt2);
dprintk(1, "failed urb submission (%i: err = %i)!\n", i, err);
return err;
}
}
cinergyt2_control_stream_transfer(cinergyt2, 1);
return 0;
}
static int cinergyt2_start_feed(struct dvb_demux_feed *dvbdmxfeed)
{
struct dvb_demux *demux = dvbdmxfeed->demux;
struct cinergyt2 *cinergyt2 = demux->priv;
if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
return -ERESTARTSYS;
if (cinergyt2->streaming == 0)
cinergyt2_start_stream_xfer(cinergyt2);
cinergyt2->streaming++;
mutex_unlock(&cinergyt2->sem);
return 0;
}
static int cinergyt2_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
{
struct dvb_demux *demux = dvbdmxfeed->demux;
struct cinergyt2 *cinergyt2 = demux->priv;
if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
return -ERESTARTSYS;
if (--cinergyt2->streaming == 0)
cinergyt2_stop_stream_xfer(cinergyt2);
mutex_unlock(&cinergyt2->sem);
return 0;
}
/**
* convert linux-dvb frontend parameter set into TPS.
* See ETSI ETS-300744, section 4.6.2, table 9 for details.
*
* This function is probably reusable and may better get placed in a support
* library.
*
* We replace errornous fields by default TPS fields (the ones with value 0).
*/
static uint16_t compute_tps (struct dvb_frontend_parameters *p)
{
struct dvb_ofdm_parameters *op = &p->u.ofdm;
uint16_t tps = 0;
switch (op->code_rate_HP) {
case FEC_2_3:
tps |= (1 << 7);
break;
case FEC_3_4:
tps |= (2 << 7);
break;
case FEC_5_6:
tps |= (3 << 7);
break;
case FEC_7_8:
tps |= (4 << 7);
break;
case FEC_1_2:
case FEC_AUTO:
default:
/* tps |= (0 << 7) */;
}
switch (op->code_rate_LP) {
case FEC_2_3:
tps |= (1 << 4);
break;
case FEC_3_4:
tps |= (2 << 4);
break;
case FEC_5_6:
tps |= (3 << 4);
break;
case FEC_7_8:
tps |= (4 << 4);
break;
case FEC_1_2:
case FEC_AUTO:
default:
/* tps |= (0 << 4) */;
}
switch (op->constellation) {
case QAM_16:
tps |= (1 << 13);
break;
case QAM_64:
tps |= (2 << 13);
break;
case QPSK:
default:
/* tps |= (0 << 13) */;
}
switch (op->transmission_mode) {
case TRANSMISSION_MODE_8K:
tps |= (1 << 0);
break;
case TRANSMISSION_MODE_2K:
default:
/* tps |= (0 << 0) */;
}
switch (op->guard_interval) {
case GUARD_INTERVAL_1_16:
tps |= (1 << 2);
break;
case GUARD_INTERVAL_1_8:
tps |= (2 << 2);
break;
case GUARD_INTERVAL_1_4:
tps |= (3 << 2);
break;
case GUARD_INTERVAL_1_32:
default:
/* tps |= (0 << 2) */;
}
switch (op->hierarchy_information) {
case HIERARCHY_1:
tps |= (1 << 10);
break;
case HIERARCHY_2:
tps |= (2 << 10);
break;
case HIERARCHY_4:
tps |= (3 << 10);
break;
case HIERARCHY_NONE:
default:
/* tps |= (0 << 10) */;
}
return tps;
}
static int cinergyt2_open (struct inode *inode, struct file *file)
{
struct dvb_device *dvbdev = file->private_data;
struct cinergyt2 *cinergyt2 = dvbdev->priv;
int err = -ERESTARTSYS;
if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
return -ERESTARTSYS;
if ((err = dvb_generic_open(inode, file))) {
mutex_unlock(&cinergyt2->sem);
return err;
}
if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
cinergyt2_sleep(cinergyt2, 0);
schedule_delayed_work(&cinergyt2->query_work, HZ/2);
}
atomic_inc(&cinergyt2->inuse);
mutex_unlock(&cinergyt2->sem);
return 0;
}
static void cinergyt2_unregister(struct cinergyt2 *cinergyt2)
{
dvb_net_release(&cinergyt2->dvbnet);
dvb_dmxdev_release(&cinergyt2->dmxdev);
dvb_dmx_release(&cinergyt2->demux);
dvb_unregister_device(cinergyt2->fedev);
dvb_unregister_adapter(&cinergyt2->adapter);
cinergyt2_free_stream_urbs(cinergyt2);
kfree(cinergyt2);
}
static int cinergyt2_release (struct inode *inode, struct file *file)
{
struct dvb_device *dvbdev = file->private_data;
struct cinergyt2 *cinergyt2 = dvbdev->priv;
if (mutex_lock_interruptible(&cinergyt2->sem))
return -ERESTARTSYS;
if (!cinergyt2->disconnect_pending && (file->f_flags & O_ACCMODE) != O_RDONLY) {
cancel_delayed_work(&cinergyt2->query_work);
flush_scheduled_work();
cinergyt2_sleep(cinergyt2, 1);
}
mutex_unlock(&cinergyt2->sem);
if (atomic_dec_and_test(&cinergyt2->inuse) && cinergyt2->disconnect_pending) {
warn("delayed unregister in release");
cinergyt2_unregister(cinergyt2);
}
return dvb_generic_release(inode, file);
}
static unsigned int cinergyt2_poll (struct file *file, struct poll_table_struct *wait)
{
struct dvb_device *dvbdev = file->private_data;
struct cinergyt2 *cinergyt2 = dvbdev->priv;
if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
return -ERESTARTSYS;
poll_wait(file, &cinergyt2->poll_wq, wait);
mutex_unlock(&cinergyt2->sem);
return (POLLIN | POLLRDNORM | POLLPRI);
}
static int cinergyt2_ioctl (struct inode *inode, struct file *file,
unsigned cmd, unsigned long arg)
{
struct dvb_device *dvbdev = file->private_data;
struct cinergyt2 *cinergyt2 = dvbdev->priv;
struct dvbt_get_status_msg *stat = &cinergyt2->status;
fe_status_t status = 0;
switch (cmd) {
case FE_GET_INFO:
return copy_to_user((void __user*) arg, &cinergyt2_fe_info,
sizeof(struct dvb_frontend_info));
case FE_READ_STATUS:
if (0xffff - le16_to_cpu(stat->gain) > 30)
status |= FE_HAS_SIGNAL;
if (stat->lock_bits & (1 << 6))
status |= FE_HAS_LOCK;
if (stat->lock_bits & (1 << 5))
status |= FE_HAS_SYNC;
if (stat->lock_bits & (1 << 4))
status |= FE_HAS_CARRIER;
if (stat->lock_bits & (1 << 1))
status |= FE_HAS_VITERBI;
return copy_to_user((void __user*) arg, &status, sizeof(status));
case FE_READ_BER:
return put_user(le32_to_cpu(stat->viterbi_error_rate),
(__u32 __user *) arg);
case FE_READ_SIGNAL_STRENGTH:
return put_user(0xffff - le16_to_cpu(stat->gain),
(__u16 __user *) arg);
case FE_READ_SNR:
return put_user((stat->snr << 8) | stat->snr,
(__u16 __user *) arg);
case FE_READ_UNCORRECTED_BLOCKS:
{
uint32_t unc_count;
unc_count = stat->uncorrected_block_count;
stat->uncorrected_block_count = 0;
/* UNC are already converted to host byte order... */
return put_user(unc_count,(__u32 __user *) arg);
}
case FE_SET_FRONTEND:
{
struct dvbt_set_parameters_msg *param = &cinergyt2->param;
struct dvb_frontend_parameters p;
int err;
if ((file->f_flags & O_ACCMODE) == O_RDONLY)
return -EPERM;
if (copy_from_user(&p, (void __user*) arg, sizeof(p)))
return -EFAULT;
if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
return -ERESTARTSYS;
param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
param->tps = cpu_to_le16(compute_tps(&p));
param->freq = cpu_to_le32(p.frequency / 1000);
param->bandwidth = 8 - p.u.ofdm.bandwidth - BANDWIDTH_8_MHZ;
stat->lock_bits = 0;
cinergyt2->pending_fe_events++;
wake_up_interruptible(&cinergyt2->poll_wq);
err = cinergyt2_command(cinergyt2,
(char *) param, sizeof(*param),
NULL, 0);
mutex_unlock(&cinergyt2->sem);
return (err < 0) ? err : 0;
}
case FE_GET_FRONTEND:
/**
* trivial to implement (see struct dvbt_get_status_msg).
* equivalent to FE_READ ioctls, but needs
* TPS -> linux-dvb parameter set conversion. Feel free
* to implement this and send us a patch if you need this
* functionality.
*/
break;
case FE_GET_EVENT:
{
/**
* for now we only fill the status field. the parameters
* are trivial to fill as soon FE_GET_FRONTEND is done.
*/
struct dvb_frontend_event __user *e = (void __user *) arg;
if (cinergyt2->pending_fe_events == 0) {
if (file->f_flags & O_NONBLOCK)
return -EWOULDBLOCK;
wait_event_interruptible(cinergyt2->poll_wq,
cinergyt2->pending_fe_events > 0);
}
cinergyt2->pending_fe_events = 0;
return cinergyt2_ioctl(inode, file, FE_READ_STATUS,
(unsigned long) &e->status);
}
default:
;
}
return -EINVAL;
}
static int cinergyt2_mmap(struct file *file, struct vm_area_struct *vma)
{
struct dvb_device *dvbdev = file->private_data;
struct cinergyt2 *cinergyt2 = dvbdev->priv;
int ret = 0;
lock_kernel();
if (vma->vm_flags & (VM_WRITE | VM_EXEC)) {
ret = -EPERM;
goto bailout;
}
if (vma->vm_end > vma->vm_start + STREAM_URB_COUNT * STREAM_BUF_SIZE) {
ret = -EINVAL;
goto bailout;
}
vma->vm_flags |= (VM_IO | VM_DONTCOPY);
vma->vm_file = file;
ret = remap_pfn_range(vma, vma->vm_start,
virt_to_phys(cinergyt2->streambuf) >> PAGE_SHIFT,
vma->vm_end - vma->vm_start,
vma->vm_page_prot) ? -EAGAIN : 0;
bailout:
unlock_kernel();
return ret;
}
static struct file_operations cinergyt2_fops = {
.owner = THIS_MODULE,
.ioctl = cinergyt2_ioctl,
.poll = cinergyt2_poll,
.open = cinergyt2_open,
.release = cinergyt2_release,
.mmap = cinergyt2_mmap
};
static struct dvb_device cinergyt2_fe_template = {
.users = ~0,
.writers = 1,
.readers = (~0)-1,
.fops = &cinergyt2_fops
};
#ifdef ENABLE_RC
static void cinergyt2_query_rc (void *data)
{
struct cinergyt2 *cinergyt2 = data;
char buf[1] = { CINERGYT2_EP1_GET_RC_EVENTS };
struct cinergyt2_rc_event rc_events[12];
int n, len, i;
if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
return;
len = cinergyt2_command(cinergyt2, buf, sizeof(buf),
(char *) rc_events, sizeof(rc_events));
if (len < 0)
goto out;
if (len == 0) {
if (time_after(jiffies, cinergyt2->last_event_jiffies +
msecs_to_jiffies(150))) {
/* stop key repeat */
if (cinergyt2->rc_input_event != KEY_MAX) {
dprintk(1, "rc_input_event=%d Up\n", cinergyt2->rc_input_event);
input_report_key(cinergyt2->rc_input_dev,
cinergyt2->rc_input_event, 0);
cinergyt2->rc_input_event = KEY_MAX;
}
cinergyt2->rc_last_code = ~0;
}
goto out;
}
cinergyt2->last_event_jiffies = jiffies;
for (n = 0; n < (len / sizeof(rc_events[0])); n++) {
dprintk(1, "rc_events[%d].value = %x, type=%x\n",
n, le32_to_cpu(rc_events[n].value), rc_events[n].type);
if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC &&
rc_events[n].value == ~0) {
/* keyrepeat bit -> just repeat last rc_input_event */
} else {
cinergyt2->rc_input_event = KEY_MAX;
for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3) {
if (rc_keys[i + 0] == rc_events[n].type &&
rc_keys[i + 1] == le32_to_cpu(rc_events[n].value)) {
cinergyt2->rc_input_event = rc_keys[i + 2];
break;
}
}
}
if (cinergyt2->rc_input_event != KEY_MAX) {
if (rc_events[n].value == cinergyt2->rc_last_code &&
cinergyt2->rc_last_code != ~0) {
/* emit a key-up so the double event is recognized */
dprintk(1, "rc_input_event=%d UP\n", cinergyt2->rc_input_event);
input_report_key(cinergyt2->rc_input_dev,
cinergyt2->rc_input_event, 0);
}
dprintk(1, "rc_input_event=%d\n", cinergyt2->rc_input_event);
input_report_key(cinergyt2->rc_input_dev,
cinergyt2->rc_input_event, 1);
cinergyt2->rc_last_code = rc_events[n].value;
}
}
out:
schedule_delayed_work(&cinergyt2->rc_query_work,
msecs_to_jiffies(RC_QUERY_INTERVAL));
mutex_unlock(&cinergyt2->sem);
}
static int cinergyt2_register_rc(struct cinergyt2 *cinergyt2)
{
struct input_dev *input_dev;
int i;
cinergyt2->rc_input_dev = input_dev = input_allocate_device();
if (!input_dev)
return -ENOMEM;
usb_make_path(cinergyt2->udev, cinergyt2->phys, sizeof(cinergyt2->phys));
strlcat(cinergyt2->phys, "/input0", sizeof(cinergyt2->phys));
cinergyt2->rc_input_event = KEY_MAX;
cinergyt2->rc_last_code = ~0;
INIT_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc, cinergyt2);
input_dev->name = DRIVER_NAME " remote control";
input_dev->phys = cinergyt2->phys;
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
for (i = 0; i < ARRAY_SIZE(rc_keys); i += 3)
set_bit(rc_keys[i + 2], input_dev->keybit);
input_dev->keycodesize = 0;
input_dev->keycodemax = 0;
input_register_device(cinergyt2->rc_input_dev);
schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
return 0;
}
static void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2)
{
cancel_delayed_work(&cinergyt2->rc_query_work);
input_unregister_device(cinergyt2->rc_input_dev);
}
static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2)
{
cancel_delayed_work(&cinergyt2->rc_query_work);
}
static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2)
{
schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2);
}
#else
static inline int cinergyt2_register_rc(struct cinergyt2 *cinergyt2) { return 0; }
static inline void cinergyt2_unregister_rc(struct cinergyt2 *cinergyt2) { }
static inline void cinergyt2_suspend_rc(struct cinergyt2 *cinergyt2) { }
static inline void cinergyt2_resume_rc(struct cinergyt2 *cinergyt2) { }
#endif /* ENABLE_RC */
static void cinergyt2_query (void *data)
{
struct cinergyt2 *cinergyt2 = (struct cinergyt2 *) data;
char cmd [] = { CINERGYT2_EP1_GET_TUNER_STATUS };
struct dvbt_get_status_msg *s = &cinergyt2->status;
uint8_t lock_bits;
uint32_t unc;
if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
return;
unc = s->uncorrected_block_count;
lock_bits = s->lock_bits;
cinergyt2_command(cinergyt2, cmd, sizeof(cmd), (char *) s, sizeof(*s));
unc += le32_to_cpu(s->uncorrected_block_count);
s->uncorrected_block_count = unc;
if (lock_bits != s->lock_bits) {
wake_up_interruptible(&cinergyt2->poll_wq);
cinergyt2->pending_fe_events++;
}
schedule_delayed_work(&cinergyt2->query_work,
msecs_to_jiffies(QUERY_INTERVAL));
mutex_unlock(&cinergyt2->sem);
}
static int cinergyt2_probe (struct usb_interface *intf,
const struct usb_device_id *id)
{
struct cinergyt2 *cinergyt2;
int err;
if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
dprintk(1, "out of memory?!?\n");
return -ENOMEM;
}
memset (cinergyt2, 0, sizeof (struct cinergyt2));
usb_set_intfdata (intf, (void *) cinergyt2);
mutex_init(&cinergyt2->sem);
init_waitqueue_head (&cinergyt2->poll_wq);
INIT_WORK(&cinergyt2->query_work, cinergyt2_query, cinergyt2);
cinergyt2->udev = interface_to_usbdev(intf);
cinergyt2->param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
if (cinergyt2_alloc_stream_urbs (cinergyt2) < 0) {
dprintk(1, "unable to allocate stream urbs\n");
kfree(cinergyt2);
return -ENOMEM;
}
dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE);
cinergyt2->demux.priv = cinergyt2;
cinergyt2->demux.filternum = 256;
cinergyt2->demux.feednum = 256;
cinergyt2->demux.start_feed = cinergyt2_start_feed;
cinergyt2->demux.stop_feed = cinergyt2_stop_feed;
cinergyt2->demux.dmx.capabilities = DMX_TS_FILTERING |
DMX_SECTION_FILTERING |
DMX_MEMORY_BASED_FILTERING;
if ((err = dvb_dmx_init(&cinergyt2->demux)) < 0) {
dprintk(1, "dvb_dmx_init() failed (err = %d)\n", err);
goto bailout;
}
cinergyt2->dmxdev.filternum = cinergyt2->demux.filternum;
cinergyt2->dmxdev.demux = &cinergyt2->demux.dmx;
cinergyt2->dmxdev.capabilities = 0;
if ((err = dvb_dmxdev_init(&cinergyt2->dmxdev, &cinergyt2->adapter)) < 0) {
dprintk(1, "dvb_dmxdev_init() failed (err = %d)\n", err);
goto bailout;
}
if (dvb_net_init(&cinergyt2->adapter, &cinergyt2->dvbnet, &cinergyt2->demux.dmx))
dprintk(1, "dvb_net_init() failed!\n");
dvb_register_device(&cinergyt2->adapter, &cinergyt2->fedev,
&cinergyt2_fe_template, cinergyt2,
DVB_DEVICE_FRONTEND);
err = cinergyt2_register_rc(cinergyt2);
if (err)
goto bailout;
return 0;
bailout:
dvb_net_release(&cinergyt2->dvbnet);
dvb_dmxdev_release(&cinergyt2->dmxdev);
dvb_dmx_release(&cinergyt2->demux);
dvb_unregister_adapter(&cinergyt2->adapter);
cinergyt2_free_stream_urbs(cinergyt2);
kfree(cinergyt2);
return -ENOMEM;
}
static void cinergyt2_disconnect (struct usb_interface *intf)
{
struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
flush_scheduled_work();
cinergyt2_unregister_rc(cinergyt2);
cancel_delayed_work(&cinergyt2->query_work);
wake_up_interruptible(&cinergyt2->poll_wq);
cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx);
cinergyt2->disconnect_pending = 1;
if (!atomic_read(&cinergyt2->inuse))
cinergyt2_unregister(cinergyt2);
}
static int cinergyt2_suspend (struct usb_interface *intf, pm_message_t state)
{
struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
return -ERESTARTSYS;
if (state.event > PM_EVENT_ON) {
struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
cinergyt2_suspend_rc(cinergyt2);
cancel_delayed_work(&cinergyt2->query_work);
if (cinergyt2->streaming)
cinergyt2_stop_stream_xfer(cinergyt2);
flush_scheduled_work();
cinergyt2_sleep(cinergyt2, 1);
}
mutex_unlock(&cinergyt2->sem);
return 0;
}
static int cinergyt2_resume (struct usb_interface *intf)
{
struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf);
struct dvbt_set_parameters_msg *param = &cinergyt2->param;
if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem))
return -ERESTARTSYS;
if (!cinergyt2->sleeping) {
cinergyt2_sleep(cinergyt2, 0);
cinergyt2_command(cinergyt2, (char *) param, sizeof(*param), NULL, 0);
if (cinergyt2->streaming)
cinergyt2_start_stream_xfer(cinergyt2);
schedule_delayed_work(&cinergyt2->query_work, HZ/2);
}
cinergyt2_resume_rc(cinergyt2);
mutex_unlock(&cinergyt2->sem);
return 0;
}
static const struct usb_device_id cinergyt2_table [] __devinitdata = {
{ USB_DEVICE(0x0ccd, 0x0038) },
{ 0 }
};
MODULE_DEVICE_TABLE(usb, cinergyt2_table);
static struct usb_driver cinergyt2_driver = {
.name = "cinergyT2",
.probe = cinergyt2_probe,
.disconnect = cinergyt2_disconnect,
.suspend = cinergyt2_suspend,
.resume = cinergyt2_resume,
.id_table = cinergyt2_table
};
static int __init cinergyt2_init (void)
{
int err;
if ((err = usb_register(&cinergyt2_driver)) < 0)
dprintk(1, "usb_register() failed! (err %i)\n", err);
return err;
}
static void __exit cinergyt2_exit (void)
{
usb_deregister(&cinergyt2_driver);
}
module_init (cinergyt2_init);
module_exit (cinergyt2_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Holger Waechtler, Daniel Mack");
