diff options
Diffstat (limited to 'drivers/media/dvb/cinergyT2/cinergyT2.c')
| -rw-r--r-- | drivers/media/dvb/cinergyT2/cinergyT2.c | 965 |
1 files changed, 965 insertions, 0 deletions
diff --git a/drivers/media/dvb/cinergyT2/cinergyT2.c b/drivers/media/dvb/cinergyT2/cinergyT2.c new file mode 100644 index 000000000000..f1f539761371 --- /dev/null +++ b/drivers/media/dvb/cinergyT2/cinergyT2.c @@ -0,0 +1,965 @@ +/* + * TerraTec Cinergy Tē/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/version.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/pci.h> +#include <linux/input.h> +#include <linux/dvb/frontend.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 (100) /* 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(): ", __stringify(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 semaphore 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; + + void *streambuf; + dma_addr_t streambuf_dmahandle; + struct urb *stream_urb [STREAM_URB_COUNT]; + +#ifdef ENABLE_RC + struct input_dev rc_input_dev; + struct work_struct rc_query_work; + int rc_input_event; +#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]); + + pci_free_consistent(NULL, STREAM_URB_COUNT*STREAM_BUF_SIZE, + cinergyt2->streambuf, cinergyt2->streambuf_dmahandle); +} + +static int cinergyt2_alloc_stream_urbs (struct cinergyt2 *cinergyt2) +{ + int i; + + cinergyt2->streambuf = pci_alloc_consistent(NULL, + STREAM_URB_COUNT*STREAM_BUF_SIZE, + &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 (down_interruptible(&cinergyt2->sem)) + return -ERESTARTSYS; + + if (cinergyt2->streaming == 0) + cinergyt2_start_stream_xfer(cinergyt2); + + cinergyt2->streaming++; + up(&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 (down_interruptible(&cinergyt2->sem)) + return -ERESTARTSYS; + + if (--cinergyt2->streaming == 0) + cinergyt2_stop_stream_xfer(cinergyt2); + + up(&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; + + if ((err = dvb_generic_open(inode, file))) + return err; + + if (down_interruptible(&cinergyt2->sem)) + return -ERESTARTSYS; + + if ((file->f_flags & O_ACCMODE) != O_RDONLY) { + cinergyt2_sleep(cinergyt2, 0); + schedule_delayed_work(&cinergyt2->query_work, HZ/2); + } + + up(&cinergyt2->sem); + return 0; +} + +static int cinergyt2_release (struct inode *inode, struct file *file) +{ + struct dvb_device *dvbdev = file->private_data; + struct cinergyt2 *cinergyt2 = dvbdev->priv; + + if (down_interruptible(&cinergyt2->sem)) + return -ERESTARTSYS; + + if ((file->f_flags & O_ACCMODE) != O_RDONLY) { + cancel_delayed_work(&cinergyt2->query_work); + flush_scheduled_work(); + cinergyt2_sleep(cinergyt2, 1); + } + + up(&cinergyt2->sem); + + 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; + poll_wait(file, &cinergyt2->poll_wq, wait); + 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: + /* UNC are already converted to host byte order... */ + return put_user(stat->uncorrected_block_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 (down_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); + + up(&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 = (struct cinergyt2 *) data; + char buf [1] = { CINERGYT2_EP1_GET_RC_EVENTS }; + struct cinergyt2_rc_event rc_events[12]; + int n, len; + + if (down_interruptible(&cinergyt2->sem)) + return; + + len = cinergyt2_command(cinergyt2, buf, sizeof(buf), + (char *) rc_events, sizeof(rc_events)); + + for (n=0; len>0 && n<(len/sizeof(rc_events[0])); n++) { + int i; + + if (rc_events[n].type == CINERGYT2_RC_EVENT_TYPE_NEC && + rc_events[n].value == ~0) + { + /** + * keyrepeat bit. If we would handle this properly + * we would need to emit down events as long the + * keyrepeat goes, a up event if no further + * repeat bits occur. Would need a timer to implement + * and no other driver does this, so we simply + * emit the last key up/down sequence again. + */ + } else { + cinergyt2->rc_input_event = KEY_MAX; + for (i=0; i<sizeof(rc_keys)/sizeof(rc_keys[0]); i+=3) { + if (rc_keys[i+0] == rc_events[n].type && + rc_keys[i+1] == rc_events[n].value) + { + cinergyt2->rc_input_event = rc_keys[i+2]; + break; + } + } + } + + if (cinergyt2->rc_input_event != KEY_MAX) { + input_report_key(&cinergyt2->rc_input_dev, cinergyt2->rc_input_event, 1); + input_report_key(&cinergyt2->rc_input_dev, cinergyt2->rc_input_event, 0); + input_sync(&cinergyt2->rc_input_dev); + } + } + + schedule_delayed_work(&cinergyt2->rc_query_work, + msecs_to_jiffies(RC_QUERY_INTERVAL)); + + up(&cinergyt2->sem); +} +#endif + +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 (down_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)); + + up(&cinergyt2->sem); +} + +static int cinergyt2_probe (struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct cinergyt2 *cinergyt2; + int i, 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); + + init_MUTEX(&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); + +#ifdef ENABLE_RC + init_input_dev(&cinergyt2->rc_input_dev); + + cinergyt2->rc_input_dev.evbit[0] = BIT(EV_KEY); + cinergyt2->rc_input_dev.keycodesize = sizeof(unsigned char); + cinergyt2->rc_input_dev.keycodemax = KEY_MAX; + cinergyt2->rc_input_dev.name = DRIVER_NAME " remote control"; + + for (i=0; i<sizeof(rc_keys)/sizeof(rc_keys[0]); i+=3) + set_bit(rc_keys[i+2], cinergyt2->rc_input_dev.keybit); + + input_register_device(&cinergyt2->rc_input_dev); + + cinergyt2->rc_input_event = KEY_MAX; + + INIT_WORK(&cinergyt2->rc_query_work, cinergyt2_query_rc, cinergyt2); + schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2); +#endif + return 0; + +bailout: + 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); + + if (down_interruptible(&cinergyt2->sem)) + return; + +#ifdef ENABLE_RC + cancel_delayed_work(&cinergyt2->rc_query_work); + flush_scheduled_work(); + input_unregister_device(&cinergyt2->rc_input_dev); +#endif + + cinergyt2->demux.dmx.close(&cinergyt2->demux.dmx); + 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); + up(&cinergyt2->sem); + kfree(cinergyt2); +} + +static int cinergyt2_suspend (struct usb_interface *intf, u32 state) +{ + struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf); + + if (down_interruptible(&cinergyt2->sem)) + return -ERESTARTSYS; + + if (state > 0) { /* state 0 seems to mean DEVICE_PM_ON */ + struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf); +#ifdef ENABLE_RC + cancel_delayed_work(&cinergyt2->rc_query_work); +#endif + cancel_delayed_work(&cinergyt2->query_work); + if (cinergyt2->streaming) + cinergyt2_stop_stream_xfer(cinergyt2); + flush_scheduled_work(); + cinergyt2_sleep(cinergyt2, 1); + } + + up(&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 (down_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); + } + +#ifdef ENABLE_RC + schedule_delayed_work(&cinergyt2->rc_query_work, HZ/2); +#endif + up(&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 = { + .owner = THIS_MODULE, + .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"); + |