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linux/drivers/media/pci/cx18/cx18-dvb.c
Thomas Gleixner c942fddf87 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 
Based on 3 normalized pattern(s):

  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

  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 [author] [kishon] [vijay] [abraham]
  [i] [kishon]@[ti] [com] 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

  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 [author] [graeme] [gregory]
  [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
  [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
  [hk] [hemahk]@[ti] [com] 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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1105 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* cx18 functions for DVB support
*
* Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
* Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
*/
#include "cx18-version.h"
#include "cx18-dvb.h"
#include "cx18-io.h"
#include "cx18-queue.h"
#include "cx18-streams.h"
#include "cx18-cards.h"
#include "cx18-gpio.h"
#include "s5h1409.h"
#include "mxl5005s.h"
#include "s5h1411.h"
#include "tda18271.h"
#include "zl10353.h"
#include <linux/firmware.h>
#include "mt352.h"
#include "mt352_priv.h"
#include "tuner-xc2028.h"
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
#define FWFILE "dvb-cx18-mpc718-mt352.fw"
#define CX18_REG_DMUX_NUM_PORT_0_CONTROL 0xd5a000
#define CX18_CLOCK_ENABLE2 0xc71024
#define CX18_DMUX_CLK_MASK 0x0080
/*
* CX18_CARD_HVR_1600_ESMT
* CX18_CARD_HVR_1600_SAMSUNG
*/
static struct mxl5005s_config hauppauge_hvr1600_tuner = {
.i2c_address = 0xC6 >> 1,
.if_freq = IF_FREQ_5380000HZ,
.xtal_freq = CRYSTAL_FREQ_16000000HZ,
.agc_mode = MXL_SINGLE_AGC,
.tracking_filter = MXL_TF_C_H,
.rssi_enable = MXL_RSSI_ENABLE,
.cap_select = MXL_CAP_SEL_ENABLE,
.div_out = MXL_DIV_OUT_4,
.clock_out = MXL_CLOCK_OUT_DISABLE,
.output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
.top = MXL5005S_TOP_25P2,
.mod_mode = MXL_DIGITAL_MODE,
.if_mode = MXL_ZERO_IF,
.qam_gain = 0x02,
.AgcMasterByte = 0x00,
};
static struct s5h1409_config hauppauge_hvr1600_config = {
.demod_address = 0x32 >> 1,
.output_mode = S5H1409_SERIAL_OUTPUT,
.gpio = S5H1409_GPIO_ON,
.qam_if = 44000,
.inversion = S5H1409_INVERSION_OFF,
.status_mode = S5H1409_DEMODLOCKING,
.mpeg_timing = S5H1409_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK,
.hvr1600_opt = S5H1409_HVR1600_OPTIMIZE
};
/*
* CX18_CARD_HVR_1600_S5H1411
*/
static struct s5h1411_config hcw_s5h1411_config = {
.output_mode = S5H1411_SERIAL_OUTPUT,
.gpio = S5H1411_GPIO_OFF,
.vsb_if = S5H1411_IF_44000,
.qam_if = S5H1411_IF_4000,
.inversion = S5H1411_INVERSION_ON,
.status_mode = S5H1411_DEMODLOCKING,
.mpeg_timing = S5H1411_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK,
};
static struct tda18271_std_map hauppauge_tda18271_std_map = {
.atsc_6 = { .if_freq = 5380, .agc_mode = 3, .std = 3,
.if_lvl = 6, .rfagc_top = 0x37 },
.qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 0,
.if_lvl = 6, .rfagc_top = 0x37 },
};
static struct tda18271_config hauppauge_tda18271_config = {
.std_map = &hauppauge_tda18271_std_map,
.gate = TDA18271_GATE_DIGITAL,
.output_opt = TDA18271_OUTPUT_LT_OFF,
};
/*
* CX18_CARD_LEADTEK_DVR3100H
*/
/* Information/confirmation of proper config values provided by Terry Wu */
static struct zl10353_config leadtek_dvr3100h_demod = {
.demod_address = 0x1e >> 1, /* Datasheet suggested straps */
.if2 = 45600, /* 4.560 MHz IF from the XC3028 */
.parallel_ts = 1, /* Not a serial TS */
.no_tuner = 1, /* XC3028 is not behind the gate */
.disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
};
/*
* CX18_CARD_YUAN_MPC718
*/
/*
* Due to
*
* 1. an absence of information on how to program the MT352
* 2. the Linux mt352 module pushing MT352 initialization off onto us here
*
* We have to use an init sequence that *you* must extract from the Windows
* driver (yuanrap.sys) and which we load as a firmware.
*
* If someone can provide me with a Zarlink MT352 (Intel CE6352?) Design Manual
* with chip programming details, then I can remove this annoyance.
*/
static int yuan_mpc718_mt352_reqfw(struct cx18_stream *stream,
const struct firmware **fw)
{
struct cx18 *cx = stream->cx;
const char *fn = FWFILE;
int ret;
ret = request_firmware(fw, fn, &cx->pci_dev->dev);
if (ret)
CX18_ERR("Unable to open firmware file %s\n", fn);
else {
size_t sz = (*fw)->size;
if (sz < 2 || sz > 64 || (sz % 2) != 0) {
CX18_ERR("Firmware %s has a bad size: %lu bytes\n",
fn, (unsigned long) sz);
ret = -EILSEQ;
release_firmware(*fw);
*fw = NULL;
}
}
if (ret) {
CX18_ERR("The MPC718 board variant with the MT352 DVB-T demodulator will not work without it\n");
CX18_ERR("Run 'linux/scripts/get_dvb_firmware mpc718' if you need the firmware\n");
}
return ret;
}
static int yuan_mpc718_mt352_init(struct dvb_frontend *fe)
{
struct cx18_dvb *dvb = container_of(fe->dvb,
struct cx18_dvb, dvb_adapter);
struct cx18_stream *stream = dvb->stream;
const struct firmware *fw = NULL;
int ret;
int i;
u8 buf[3];
ret = yuan_mpc718_mt352_reqfw(stream, &fw);
if (ret)
return ret;
/* Loop through all the register-value pairs in the firmware file */
for (i = 0; i < fw->size; i += 2) {
buf[0] = fw->data[i];
/* Intercept a few registers we want to set ourselves */
switch (buf[0]) {
case TRL_NOMINAL_RATE_0:
/* Set our custom OFDM bandwidth in the case below */
break;
case TRL_NOMINAL_RATE_1:
/* 6 MHz: 64/7 * 6/8 / 20.48 * 2^16 = 0x55b6.db6 */
/* 7 MHz: 64/7 * 7/8 / 20.48 * 2^16 = 0x6400 */
/* 8 MHz: 64/7 * 8/8 / 20.48 * 2^16 = 0x7249.249 */
buf[1] = 0x72;
buf[2] = 0x49;
mt352_write(fe, buf, 3);
break;
case INPUT_FREQ_0:
/* Set our custom IF in the case below */
break;
case INPUT_FREQ_1:
/* 4.56 MHz IF: (20.48 - 4.56)/20.48 * 2^14 = 0x31c0 */
buf[1] = 0x31;
buf[2] = 0xc0;
mt352_write(fe, buf, 3);
break;
default:
/* Pass through the register-value pair from the fw */
buf[1] = fw->data[i+1];
mt352_write(fe, buf, 2);
break;
}
}
buf[0] = (u8) TUNER_GO;
buf[1] = 0x01; /* Go */
mt352_write(fe, buf, 2);
release_firmware(fw);
return 0;
}
static struct mt352_config yuan_mpc718_mt352_demod = {
.demod_address = 0x1e >> 1,
.adc_clock = 20480, /* 20.480 MHz */
.if2 = 4560, /* 4.560 MHz */
.no_tuner = 1, /* XC3028 is not behind the gate */
.demod_init = yuan_mpc718_mt352_init,
};
static struct zl10353_config yuan_mpc718_zl10353_demod = {
.demod_address = 0x1e >> 1, /* Datasheet suggested straps */
.if2 = 45600, /* 4.560 MHz IF from the XC3028 */
.parallel_ts = 1, /* Not a serial TS */
.no_tuner = 1, /* XC3028 is not behind the gate */
.disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
};
static struct zl10353_config gotview_dvd3_zl10353_demod = {
.demod_address = 0x1e >> 1, /* Datasheet suggested straps */
.if2 = 45600, /* 4.560 MHz IF from the XC3028 */
.parallel_ts = 1, /* Not a serial TS */
.no_tuner = 1, /* XC3028 is not behind the gate */
.disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
};
static int dvb_register(struct cx18_stream *stream);
/* Kernel DVB framework calls this when the feed needs to start.
* The CX18 framework should enable the transport DMA handling
* and queue processing.
*/
static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct cx18_stream *stream = (struct cx18_stream *) demux->priv;
struct cx18 *cx;
int ret;
u32 v;
if (!stream)
return -EINVAL;
cx = stream->cx;
CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n",
feed->pid, feed->index);
mutex_lock(&cx->serialize_lock);
ret = cx18_init_on_first_open(cx);
mutex_unlock(&cx->serialize_lock);
if (ret) {
CX18_ERR("Failed to initialize firmware starting DVB feed\n");
return ret;
}
ret = -EINVAL;
switch (cx->card->type) {
case CX18_CARD_HVR_1600_ESMT:
case CX18_CARD_HVR_1600_SAMSUNG:
case CX18_CARD_HVR_1600_S5H1411:
v = cx18_read_reg(cx, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
v |= 0x00400000; /* Serial Mode */
v |= 0x00002000; /* Data Length - Byte */
v |= 0x00010000; /* Error - Polarity */
v |= 0x00020000; /* Error - Passthru */
v |= 0x000c0000; /* Error - Ignore */
cx18_write_reg(cx, v, CX18_REG_DMUX_NUM_PORT_0_CONTROL);
break;
case CX18_CARD_LEADTEK_DVR3100H:
case CX18_CARD_YUAN_MPC718:
case CX18_CARD_GOTVIEW_PCI_DVD3:
default:
/* Assumption - Parallel transport - Signalling
* undefined or default.
*/
break;
}
if (!demux->dmx.frontend)
return -EINVAL;
mutex_lock(&stream->dvb->feedlock);
if (stream->dvb->feeding++ == 0) {
CX18_DEBUG_INFO("Starting Transport DMA\n");
mutex_lock(&cx->serialize_lock);
set_bit(CX18_F_S_STREAMING, &stream->s_flags);
ret = cx18_start_v4l2_encode_stream(stream);
if (ret < 0) {
CX18_DEBUG_INFO("Failed to start Transport DMA\n");
stream->dvb->feeding--;
if (stream->dvb->feeding == 0)
clear_bit(CX18_F_S_STREAMING, &stream->s_flags);
}
mutex_unlock(&cx->serialize_lock);
} else
ret = 0;
mutex_unlock(&stream->dvb->feedlock);
return ret;
}
/* Kernel DVB framework calls this when the feed needs to stop. */
static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct cx18_stream *stream = (struct cx18_stream *)demux->priv;
struct cx18 *cx;
int ret = -EINVAL;
if (stream) {
cx = stream->cx;
CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n",
feed->pid, feed->index);
mutex_lock(&stream->dvb->feedlock);
if (--stream->dvb->feeding == 0) {
CX18_DEBUG_INFO("Stopping Transport DMA\n");
mutex_lock(&cx->serialize_lock);
ret = cx18_stop_v4l2_encode_stream(stream, 0);
mutex_unlock(&cx->serialize_lock);
} else
ret = 0;
mutex_unlock(&stream->dvb->feedlock);
}
return ret;
}
int cx18_dvb_register(struct cx18_stream *stream)
{
struct cx18 *cx = stream->cx;
struct cx18_dvb *dvb = stream->dvb;
struct dvb_adapter *dvb_adapter;
struct dvb_demux *dvbdemux;
struct dmx_demux *dmx;
int ret;
if (!dvb)
return -EINVAL;
dvb->enabled = 0;
dvb->stream = stream;
ret = dvb_register_adapter(&dvb->dvb_adapter,
CX18_DRIVER_NAME,
THIS_MODULE, &cx->pci_dev->dev, adapter_nr);
if (ret < 0)
goto err_out;
dvb_adapter = &dvb->dvb_adapter;
dvbdemux = &dvb->demux;
dvbdemux->priv = (void *)stream;
dvbdemux->filternum = 256;
dvbdemux->feednum = 256;
dvbdemux->start_feed = cx18_dvb_start_feed;
dvbdemux->stop_feed = cx18_dvb_stop_feed;
dvbdemux->dmx.capabilities = (DMX_TS_FILTERING |
DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
ret = dvb_dmx_init(dvbdemux);
if (ret < 0)
goto err_dvb_unregister_adapter;
dmx = &dvbdemux->dmx;
dvb->hw_frontend.source = DMX_FRONTEND_0;
dvb->mem_frontend.source = DMX_MEMORY_FE;
dvb->dmxdev.filternum = 256;
dvb->dmxdev.demux = dmx;
ret = dvb_dmxdev_init(&dvb->dmxdev, dvb_adapter);
if (ret < 0)
goto err_dvb_dmx_release;
ret = dmx->add_frontend(dmx, &dvb->hw_frontend);
if (ret < 0)
goto err_dvb_dmxdev_release;
ret = dmx->add_frontend(dmx, &dvb->mem_frontend);
if (ret < 0)
goto err_remove_hw_frontend;
ret = dmx->connect_frontend(dmx, &dvb->hw_frontend);
if (ret < 0)
goto err_remove_mem_frontend;
ret = dvb_register(stream);
if (ret < 0)
goto err_disconnect_frontend;
dvb_net_init(dvb_adapter, &dvb->dvbnet, dmx);
CX18_INFO("DVB Frontend registered\n");
CX18_INFO("Registered DVB adapter%d for %s (%d x %d.%02d kB)\n",
stream->dvb->dvb_adapter.num, stream->name,
stream->buffers, stream->buf_size/1024,
(stream->buf_size * 100 / 1024) % 100);
mutex_init(&dvb->feedlock);
dvb->enabled = 1;
return ret;
err_disconnect_frontend:
dmx->disconnect_frontend(dmx);
err_remove_mem_frontend:
dmx->remove_frontend(dmx, &dvb->mem_frontend);
err_remove_hw_frontend:
dmx->remove_frontend(dmx, &dvb->hw_frontend);
err_dvb_dmxdev_release:
dvb_dmxdev_release(&dvb->dmxdev);
err_dvb_dmx_release:
dvb_dmx_release(dvbdemux);
err_dvb_unregister_adapter:
dvb_unregister_adapter(dvb_adapter);
err_out:
return ret;
}
void cx18_dvb_unregister(struct cx18_stream *stream)
{
struct cx18 *cx = stream->cx;
struct cx18_dvb *dvb = stream->dvb;
struct dvb_adapter *dvb_adapter;
struct dvb_demux *dvbdemux;
struct dmx_demux *dmx;
CX18_INFO("unregister DVB\n");
if (dvb == NULL || !dvb->enabled)
return;
dvb_adapter = &dvb->dvb_adapter;
dvbdemux = &dvb->demux;
dmx = &dvbdemux->dmx;
dmx->close(dmx);
dvb_net_release(&dvb->dvbnet);
dmx->remove_frontend(dmx, &dvb->mem_frontend);
dmx->remove_frontend(dmx, &dvb->hw_frontend);
dvb_dmxdev_release(&dvb->dmxdev);
dvb_dmx_release(dvbdemux);
dvb_unregister_frontend(dvb->fe);
dvb_frontend_detach(dvb->fe);
dvb_unregister_adapter(dvb_adapter);
}
/* All the DVB attach calls go here, this function gets modified
* for each new card. cx18_dvb_start_feed() will also need changes.
*/
static int dvb_register(struct cx18_stream *stream)
{
struct cx18_dvb *dvb = stream->dvb;
struct cx18 *cx = stream->cx;
int ret = 0;
switch (cx->card->type) {
case CX18_CARD_HVR_1600_ESMT:
case CX18_CARD_HVR_1600_SAMSUNG:
dvb->fe = dvb_attach(s5h1409_attach,
&hauppauge_hvr1600_config,
&cx->i2c_adap[0]);
if (dvb->fe != NULL) {
dvb_attach(mxl5005s_attach, dvb->fe,
&cx->i2c_adap[0],
&hauppauge_hvr1600_tuner);
ret = 0;
}
break;
case CX18_CARD_HVR_1600_S5H1411:
dvb->fe = dvb_attach(s5h1411_attach,
&hcw_s5h1411_config,
&cx->i2c_adap[0]);
if (dvb->fe != NULL)
dvb_attach(tda18271_attach, dvb->fe,
0x60, &cx->i2c_adap[0],
&hauppauge_tda18271_config);
break;
case CX18_CARD_LEADTEK_DVR3100H:
dvb->fe = dvb_attach(zl10353_attach,
&leadtek_dvr3100h_demod,
&cx->i2c_adap[1]);
if (dvb->fe != NULL) {
struct dvb_frontend *fe;
struct xc2028_config cfg = {
.i2c_adap = &cx->i2c_adap[1],
.i2c_addr = 0xc2 >> 1,
.ctrl = NULL,
};
static struct xc2028_ctrl ctrl = {
.fname = XC2028_DEFAULT_FIRMWARE,
.max_len = 64,
.demod = XC3028_FE_ZARLINK456,
.type = XC2028_AUTO,
};
fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
fe->ops.tuner_ops.set_config(fe, &ctrl);
}
break;
case CX18_CARD_YUAN_MPC718:
/*
* TODO
* Apparently, these cards also could instead have a
* DiBcom demod supported by one of the db7000 drivers
*/
dvb->fe = dvb_attach(mt352_attach,
&yuan_mpc718_mt352_demod,
&cx->i2c_adap[1]);
if (dvb->fe == NULL)
dvb->fe = dvb_attach(zl10353_attach,
&yuan_mpc718_zl10353_demod,
&cx->i2c_adap[1]);
if (dvb->fe != NULL) {
struct dvb_frontend *fe;
struct xc2028_config cfg = {
.i2c_adap = &cx->i2c_adap[1],
.i2c_addr = 0xc2 >> 1,
.ctrl = NULL,
};
static struct xc2028_ctrl ctrl = {
.fname = XC2028_DEFAULT_FIRMWARE,
.max_len = 64,
.demod = XC3028_FE_ZARLINK456,
.type = XC2028_AUTO,
};
fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
fe->ops.tuner_ops.set_config(fe, &ctrl);
}
break;
case CX18_CARD_GOTVIEW_PCI_DVD3:
dvb->fe = dvb_attach(zl10353_attach,
&gotview_dvd3_zl10353_demod,
&cx->i2c_adap[1]);
if (dvb->fe != NULL) {
struct dvb_frontend *fe;
struct xc2028_config cfg = {
.i2c_adap = &cx->i2c_adap[1],
.i2c_addr = 0xc2 >> 1,
.ctrl = NULL,
};
static struct xc2028_ctrl ctrl = {
.fname = XC2028_DEFAULT_FIRMWARE,
.max_len = 64,
.demod = XC3028_FE_ZARLINK456,
.type = XC2028_AUTO,
};
fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
fe->ops.tuner_ops.set_config(fe, &ctrl);
}
break;
default:
/* No Digital Tv Support */
break;
}
if (dvb->fe == NULL) {
CX18_ERR("frontend initialization failed\n");
return -1;
}
dvb->fe->callback = cx18_reset_tuner_gpio;
ret = dvb_register_frontend(&dvb->dvb_adapter, dvb->fe);
if (ret < 0) {
if (dvb->fe->ops.release)
dvb->fe->ops.release(dvb->fe);
return ret;
}
/*
* The firmware seems to enable the TS DMUX clock
* under various circumstances. However, since we know we
* might use it, let's just turn it on ourselves here.
*/
cx18_write_reg_expect(cx,
(CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK,
CX18_CLOCK_ENABLE2,
CX18_DMUX_CLK_MASK,
(CX18_DMUX_CLK_MASK << 16) | CX18_DMUX_CLK_MASK);
return ret;
}
MODULE_FIRMWARE(FWFILE);
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