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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* DVB USB Linux driver for AME DTV-5100 USB2.0 DVB-T
*
* Copyright (C) 2008 Antoine Jacquet <royale@zerezo.com>
* http://royale.zerezo.com/dtv5100/
*
* Inspired by gl861.c and au6610.c drivers
*/
#include "dtv5100.h"
#include "zl10353.h"
#include "qt1010.h"
/* debug */
static int dvb_usb_dtv5100_debug;
module_param_named(debug, dvb_usb_dtv5100_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
struct dtv5100_state {
unsigned char data[80];
};
static int dtv5100_i2c_msg(struct dvb_usb_device *d, u8 addr,
u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
{
struct dtv5100_state *st = d->priv;
u8 request;
u8 type;
u16 value;
u16 index;
switch (wlen) {
case 1:
/* write { reg }, read { value } */
request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_READ :
DTV5100_TUNER_READ);
type = USB_TYPE_VENDOR | USB_DIR_IN;
value = 0;
break;
case 2:
/* write { reg, value } */
request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_WRITE :
DTV5100_TUNER_WRITE);
type = USB_TYPE_VENDOR | USB_DIR_OUT;
value = wbuf[1];
break;
default:
warn("wlen = %x, aborting.", wlen);
return -EINVAL;
}
index = (addr << 8) + wbuf[0];
memcpy(st->data, rbuf, rlen);
msleep(1); /* avoid I2C errors */
return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), request,
type, value, index, st->data, rlen,
DTV5100_USB_TIMEOUT);
}
/* I2C */
static int dtv5100_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
int i;
if (num > 2)
return -EINVAL;
if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
return -EAGAIN;
for (i = 0; i < num; i++) {
/* write/read request */
if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf,
msg[i].len, msg[i+1].buf,
msg[i+1].len) < 0)
break;
i++;
} else if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf,
msg[i].len, NULL, 0) < 0)
break;
}
mutex_unlock(&d->i2c_mutex);
return i;
}
static u32 dtv5100_i2c_func(struct i2c_adapter *adapter)
{
return I2C_FUNC_I2C;
}
static struct i2c_algorithm dtv5100_i2c_algo = {
.master_xfer = dtv5100_i2c_xfer,
.functionality = dtv5100_i2c_func,
};
/* Callbacks for DVB USB */
static struct zl10353_config dtv5100_zl10353_config = {
.demod_address = DTV5100_DEMOD_ADDR,
.no_tuner = 1,
.parallel_ts = 1,
};
static int dtv5100_frontend_attach(struct dvb_usb_adapter *adap)
{
adap->fe_adap[0].fe = dvb_attach(zl10353_attach, &dtv5100_zl10353_config,
&adap->dev->i2c_adap);
if (adap->fe_adap[0].fe == NULL)
return -EIO;
/* disable i2c gate, or it won't work... is this safe? */
adap->fe_adap[0].fe->ops.i2c_gate_ctrl = NULL;
return 0;
}
static struct qt1010_config dtv5100_qt1010_config = {
.i2c_address = DTV5100_TUNER_ADDR
};
static int dtv5100_tuner_attach(struct dvb_usb_adapter *adap)
{
return dvb_attach(qt1010_attach,
adap->fe_adap[0].fe, &adap->dev->i2c_adap,
&dtv5100_qt1010_config) == NULL ? -ENODEV : 0;
}
/* DVB USB Driver stuff */
static struct dvb_usb_device_properties dtv5100_properties;
static int dtv5100_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
int i, ret;
struct usb_device *udev = interface_to_usbdev(intf);
/* initialize non qt1010/zl10353 part? */
for (i = 0; dtv5100_init[i].request; i++) {
ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
dtv5100_init[i].request,
USB_TYPE_VENDOR | USB_DIR_OUT,
dtv5100_init[i].value,
dtv5100_init[i].index, NULL, 0,
DTV5100_USB_TIMEOUT);
if (ret)
return ret;
}
ret = dvb_usb_device_init(intf, &dtv5100_properties,
THIS_MODULE, NULL, adapter_nr);
if (ret)
return ret;
return 0;
}
static struct usb_device_id dtv5100_table[] = {
{ USB_DEVICE(0x06be, 0xa232) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, dtv5100_table);
static struct dvb_usb_device_properties dtv5100_properties = {
.caps = DVB_USB_IS_AN_I2C_ADAPTER,
.usb_ctrl = DEVICE_SPECIFIC,
.size_of_priv = sizeof(struct dtv5100_state),
.num_adapters = 1,
.adapter = {{
.num_frontends = 1,
.fe = {{
.frontend_attach = dtv5100_frontend_attach,
.tuner_attach = dtv5100_tuner_attach,
.stream = {
.type = USB_BULK,
.count = 8,
.endpoint = 0x82,
.u = {
.bulk = {
.buffersize = 4096,
}
}
},
}},
} },
.i2c_algo = &dtv5100_i2c_algo,
.num_device_descs = 1,
.devices = {
{
.name = "AME DTV-5100 USB2.0 DVB-T",
.cold_ids = { NULL },
.warm_ids = { &dtv5100_table[0], NULL },
},
}
};
static struct usb_driver dtv5100_driver = {
.name = "dvb_usb_dtv5100",
.probe = dtv5100_probe,
.disconnect = dvb_usb_device_exit,
.id_table = dtv5100_table,
};
module_usb_driver(dtv5100_driver);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
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