abfac0b648
Ryley and me tested several eLNA configuration values with both a rooftop and a portable antenna. Ryley fuond out that the best value for his Elgato stick is indeed the current default value 0xC0. Instead, my stick is not capable of tuning VHF channels with 0xC0. With 0x80, VHF works but the tuner sensitivity with the portable antenna is poor. Instead, the value 0xA0 works with VHF and also gives good performance with both the rooftop and the portable antenna. So we concluded that devices built on the reference design work best with 0xA0, while custom designs (Elgato, PCTV) seem to require 0xC0. I also removed the unused parameter "minor" in struct as102_dev_t. Signed-off-by: Gianluca Gennari <gennarone@gmail.com> Signed-off-by: Ryley Angus <rangus@student.unimelb.edu.au> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
/*
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* Abilis Systems Single DVB-T Receiver
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* Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/usb.h>
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#include <dvb_demux.h>
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#include <dvb_frontend.h>
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#include <dmxdev.h>
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#include "as10x_cmd.h"
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#include "as102_usb_drv.h"
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#define DRIVER_FULL_NAME "Abilis Systems as10x usb driver"
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#define DRIVER_NAME "as10x_usb"
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extern int as102_debug;
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#define debug as102_debug
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extern struct usb_driver as102_usb_driver;
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extern int elna_enable;
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#define dprintk(debug, args...) \
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do { if (debug) { \
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pr_debug("%s: ", __func__); \
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printk(args); \
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} } while (0)
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#ifdef TRACE
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#define ENTER() pr_debug(">> enter %s\n", __func__)
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#define LEAVE() pr_debug("<< leave %s\n", __func__)
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#else
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#define ENTER()
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#define LEAVE()
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#endif
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#define AS102_DEVICE_MAJOR 192
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#define AS102_USB_BUF_SIZE 512
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#define MAX_STREAM_URB 32
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struct as10x_bus_adapter_t {
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struct usb_device *usb_dev;
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/* bus token lock */
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struct mutex lock;
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/* low level interface for bus adapter */
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union as10x_bus_token_t {
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/* usb token */
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struct as10x_usb_token_cmd_t usb;
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} token;
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/* token cmd xfer id */
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uint16_t cmd_xid;
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/* as10x command and response for dvb interface*/
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struct as10x_cmd_t *cmd, *rsp;
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/* bus adapter private ops callback */
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struct as102_priv_ops_t *ops;
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};
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struct as102_dev_t {
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const char *name;
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struct as10x_bus_adapter_t bus_adap;
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struct list_head device_entry;
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struct kref kref;
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uint8_t elna_cfg;
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struct dvb_adapter dvb_adap;
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struct dvb_frontend dvb_fe;
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struct dvb_demux dvb_dmx;
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struct dmxdev dvb_dmxdev;
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/* demodulator stats */
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struct as10x_demod_stats demod_stats;
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/* signal strength */
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uint16_t signal_strength;
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/* bit error rate */
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uint32_t ber;
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/* timer handle to trig ts stream download */
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struct timer_list timer_handle;
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struct mutex sem;
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dma_addr_t dma_addr;
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void *stream;
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int streaming;
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struct urb *stream_urb[MAX_STREAM_URB];
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};
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int as102_dvb_register(struct as102_dev_t *dev);
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void as102_dvb_unregister(struct as102_dev_t *dev);
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int as102_dvb_register_fe(struct as102_dev_t *dev, struct dvb_frontend *fe);
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int as102_dvb_unregister_fe(struct dvb_frontend *dev);
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