| /* |
| * 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_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_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"); |