// SPDX-License-Identifier: GPL-2.0-only
/* DVB USB compliant linux driver for GL861 USB2.0 devices.
*
* see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
*/
#include <linux/string.h>
#include "dvb_usb.h"
#include "zl10353.h"
#include "qt1010.h"
#include "tc90522.h"
#include "dvb-pll.h"
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
struct gl861 {
/* USB control message buffer */
u8 buf[16 ];
struct i2c_adapter *demod_sub_i2c;
struct i2c_client *i2c_client_demod;
struct i2c_client *i2c_client_tuner;
};
#define CMD_WRITE_SHORT 0 x01
#define CMD_READ 0 x02
#define CMD_WRITE 0 x03
static int gl861_ctrl_msg(struct dvb_usb_device *d, u8 request, u16 value,
u16 index, void *data, u16 size)
{
struct gl861 *ctx = d_to_priv(d);
struct usb_interface *intf = d->intf;
int ret;
unsigned int pipe;
u8 requesttype;
mutex_lock(&d->usb_mutex);
switch (request) {
case CMD_WRITE:
memcpy(ctx->buf, data, size);
fallthrough;
case CMD_WRITE_SHORT:
pipe = usb_sndctrlpipe(d->udev, 0 );
requesttype = USB_TYPE_VENDOR | USB_DIR_OUT;
break ;
case CMD_READ:
pipe = usb_rcvctrlpipe(d->udev, 0 );
requesttype = USB_TYPE_VENDOR | USB_DIR_IN;
break ;
default :
ret = -EINVAL;
goto err_mutex_unlock;
}
ret = usb_control_msg(d->udev, pipe, request, requesttype, value,
index, ctx->buf, size, 200 );
dev_dbg(&intf->dev, "%d | %02x %02x %*ph %*ph %*ph %s %*ph\n" ,
ret, requesttype, request, 2 , &value, 2 , &index, 2 , &size,
(requesttype & USB_DIR_IN) ? "<<<" : ">>>" , size, ctx->buf);
if (ret < 0 )
goto err_mutex_unlock;
if (request == CMD_READ)
memcpy(data, ctx->buf, size);
usleep_range(1000 , 2000 ); /* Avoid I2C errors */
mutex_unlock(&d->usb_mutex);
return 0 ;
err_mutex_unlock:
mutex_unlock(&d->usb_mutex);
dev_dbg(&intf->dev, "failed %d\n" , ret);
return ret;
}
static int gl861_short_write(struct dvb_usb_device *d, u8 addr, u8 reg, u8 val)
{
return gl861_ctrl_msg(d, CMD_WRITE_SHORT,
(addr << 9 ) | val, reg, NULL, 0 );
}
static int gl861_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
struct usb_interface *intf = d->intf;
struct gl861 *ctx = d_to_priv(d);
int ret;
u8 request, *data;
u16 value, index, size;
/* XXX: I2C adapter maximum data lengths are not tested */
if (num == 1 && !(msg[0 ].flags & I2C_M_RD)) {
/* I2C write */
if (msg[0 ].len < 2 || msg[0 ].len > sizeof (ctx->buf)) {
ret = -EOPNOTSUPP;
goto err;
}
value = (msg[0 ].addr << 1 ) << 8 ;
index = msg[0 ].buf[0 ];
if (msg[0 ].len == 2 ) {
request = CMD_WRITE_SHORT;
value |= msg[0 ].buf[1 ];
size = 0 ;
data = NULL;
} else {
request = CMD_WRITE;
size = msg[0 ].len - 1 ;
data = &msg[0 ].buf[1 ];
}
ret = gl861_ctrl_msg(d, request, value, index, data, size);
} else if (num == 2 && !(msg[0 ].flags & I2C_M_RD) &&
(msg[1 ].flags & I2C_M_RD)) {
/* I2C write + read */
if (msg[0 ].len != 1 || msg[1 ].len > sizeof (ctx->buf)) {
ret = -EOPNOTSUPP;
goto err;
}
value = (msg[0 ].addr << 1 ) << 8 ;
index = msg[0 ].buf[0 ];
request = CMD_READ;
ret = gl861_ctrl_msg(d, request, value, index,
msg[1 ].buf, msg[1 ].len);
} else if (num == 1 && (msg[0 ].flags & I2C_M_RD)) {
/* I2C read */
if (msg[0 ].len > sizeof (ctx->buf)) {
ret = -EOPNOTSUPP;
goto err;
}
value = (msg[0 ].addr << 1 ) << 8 ;
index = 0 x0100;
request = CMD_READ;
ret = gl861_ctrl_msg(d, request, value, index,
msg[0 ].buf, msg[0 ].len);
} else {
/* Unsupported I2C message */
dev_dbg(&intf->dev, "unknown i2c msg, num %u\n" , num);
ret = -EOPNOTSUPP;
}
if (ret)
goto err;
return num;
err:
dev_dbg(&intf->dev, "failed %d\n" , ret);
return ret;
}
static u32 gl861_i2c_functionality(struct i2c_adapter *adapter)
{
return I2C_FUNC_I2C;
}
static const struct i2c_algorithm gl861_i2c_algo = {
.master_xfer = gl861_i2c_master_xfer,
.functionality = gl861_i2c_functionality,
};
/* Callbacks for DVB USB */
static struct zl10353_config gl861_zl10353_config = {
.demod_address = 0 x0f,
.no_tuner = 1 ,
.parallel_ts = 1 ,
};
static int gl861_frontend_attach(struct dvb_usb_adapter *adap)
{
adap->fe[0 ] = dvb_attach(zl10353_attach, &gl861_zl10353_config,
&adap_to_d(adap)->i2c_adap);
if (adap->fe[0 ] == NULL)
return -EIO;
return 0 ;
}
static struct qt1010_config gl861_qt1010_config = {
.i2c_address = 0 x62
};
static int gl861_tuner_attach(struct dvb_usb_adapter *adap)
{
return dvb_attach(qt1010_attach,
adap->fe[0 ], &adap_to_d(adap)->i2c_adap,
&gl861_qt1010_config) == NULL ? -ENODEV : 0 ;
}
static int gl861_init(struct dvb_usb_device *d)
{
/*
* There is 2 interfaces. Interface 0 is for TV and interface 1 is
* for HID remote controller. Interface 0 has 2 alternate settings.
* For some reason we need to set interface explicitly, defaulted
* as alternate setting 1?
*/
return usb_set_interface(d->udev, 0 , 0 );
}
/* DVB USB Driver stuff */
static struct dvb_usb_device_properties gl861_props = {
.driver_name = KBUILD_MODNAME,
.owner = THIS_MODULE,
.adapter_nr = adapter_nr,
.size_of_priv = sizeof (struct gl861),
.i2c_algo = &gl861_i2c_algo,
.frontend_attach = gl861_frontend_attach,
.tuner_attach = gl861_tuner_attach,
.init = gl861_init,
.num_adapters = 1 ,
.adapter = {
{
.stream = DVB_USB_STREAM_BULK(0 x81, 7 , 512 ),
}
}
};
/*
* For Friio
*/
struct friio_config {
struct i2c_board_info demod_info;
struct tc90522_config demod_cfg;
struct i2c_board_info tuner_info;
struct dvb_pll_config tuner_cfg;
};
static const struct friio_config friio_config = {
.demod_info = { I2C_BOARD_INFO(TC90522_I2C_DEV_TER, 0 x18), },
.demod_cfg = { .split_tuner_read_i2c = true , },
.tuner_info = { I2C_BOARD_INFO("tua6034_friio" , 0 x60), },
};
/* GPIO control in Friio */
#define FRIIO_CTL_LNB (1 << 0 )
#define FRIIO_CTL_STROBE (1 << 1 )
#define FRIIO_CTL_CLK (1 << 2 )
#define FRIIO_CTL_LED (1 << 3 )
#define FRIIO_LED_RUNNING 0 x6400ff64
#define FRIIO_LED_STOPPED 0 x96ff00ff
/* control PIC16F676 attached to Friio */
static int friio_ext_ctl(struct dvb_usb_device *d,
u32 sat_color, int power_on)
{
int i, ret;
struct i2c_msg msg;
u8 *buf;
u32 mask;
u8 power = (power_on) ? FRIIO_CTL_LNB : 0 ;
buf = kmalloc(2 , GFP_KERNEL);
if (!buf)
return -ENOMEM;
msg.addr = 0 x00;
msg.flags = 0 ;
msg.len = 2 ;
msg.buf = buf;
buf[0 ] = 0 x00;
/* send 2bit header (&B10) */
buf[1 ] = power | FRIIO_CTL_LED | FRIIO_CTL_STROBE;
ret = i2c_transfer(&d->i2c_adap, &msg, 1 );
buf[1 ] |= FRIIO_CTL_CLK;
ret += i2c_transfer(&d->i2c_adap, &msg, 1 );
buf[1 ] = power | FRIIO_CTL_STROBE;
ret += i2c_transfer(&d->i2c_adap, &msg, 1 );
buf[1 ] |= FRIIO_CTL_CLK;
ret += i2c_transfer(&d->i2c_adap, &msg, 1 );
/* send 32bit(satur, R, G, B) data in serial */
mask = 1 UL << 31 ;
for (i = 0 ; i < 32 ; i++) {
buf[1 ] = power | FRIIO_CTL_STROBE;
if (sat_color & mask)
buf[1 ] |= FRIIO_CTL_LED;
ret += i2c_transfer(&d->i2c_adap, &msg, 1 );
buf[1 ] |= FRIIO_CTL_CLK;
ret += i2c_transfer(&d->i2c_adap, &msg, 1 );
mask >>= 1 ;
}
/* set the strobe off */
buf[1 ] = power;
ret += i2c_transfer(&d->i2c_adap, &msg, 1 );
buf[1 ] |= FRIIO_CTL_CLK;
ret += i2c_transfer(&d->i2c_adap, &msg, 1 );
kfree(buf);
return (ret == 70 ) ? 0 : -EREMOTEIO;
}
/* init/config of gl861 for Friio */
/* NOTE:
* This function cannot be moved to friio_init()/dvb_usbv2_init(),
* because the init defined here includes a whole device reset,
* it must be run early before any activities like I2C,
* but friio_init() is called by dvb-usbv2 after {_frontend, _tuner}_attach(),
* where I2C communication is used.
* In addition, this reset is required in reset_resume() as well.
* Thus this function is set to be called from _power_ctl().
*
* Since it will be called on the early init stage
* where the i2c adapter is not initialized yet,
* we cannot use i2c_transfer() here.
*/
static int friio_reset(struct dvb_usb_device *d)
{
int i, ret;
u8 wbuf[1 ], rbuf[2 ];
static const u8 friio_init_cmds[][2 ] = {
{0 x33, 0 x08}, {0 x37, 0 x40}, {0 x3a, 0 x1f}, {0 x3b, 0 xff},
{0 x3c, 0 x1f}, {0 x3d, 0 xff}, {0 x38, 0 x00}, {0 x35, 0 x00},
{0 x39, 0 x00}, {0 x36, 0 x00},
};
ret = usb_set_interface(d->udev, 0 , 0 );
if (ret < 0 )
return ret;
ret = gl861_short_write(d, 0 x00, 0 x11, 0 x02);
if (ret < 0 )
return ret;
usleep_range(2000 , 3000 );
ret = gl861_short_write(d, 0 x00, 0 x11, 0 x00);
if (ret < 0 )
return ret;
/*
* Check if the dev is really a Friio White, since it might be
* another device, Friio Black, with the same VID/PID.
*/
usleep_range(1000 , 2000 );
wbuf[0 ] = 0 x80;
ret = gl861_ctrl_msg(d, CMD_WRITE, 0 x09 << 9 , 0 x03, wbuf, 1 );
if (ret < 0 )
return ret;
usleep_range(2000 , 3000 );
ret = gl861_ctrl_msg(d, CMD_READ, 0 x09 << 9 , 0 x0100, rbuf, 2 );
if (ret < 0 )
return ret;
if (rbuf[0 ] != 0 xff || rbuf[1 ] != 0 xff)
return -ENODEV;
usleep_range(1000 , 2000 );
wbuf[0 ] = 0 x80;
ret = gl861_ctrl_msg(d, CMD_WRITE, 0 x48 << 9 , 0 x03, wbuf, 1 );
if (ret < 0 )
return ret;
usleep_range(2000 , 3000 );
ret = gl861_ctrl_msg(d, CMD_READ, 0 x48 << 9 , 0 x0100, rbuf, 2 );
if (ret < 0 )
return ret;
if (rbuf[0 ] != 0 xff || rbuf[1 ] != 0 xff)
return -ENODEV;
ret = gl861_short_write(d, 0 x00, 0 x30, 0 x04);
if (ret < 0 )
return ret;
ret = gl861_short_write(d, 0 x00, 0 x00, 0 x01);
if (ret < 0 )
return ret;
ret = gl861_short_write(d, 0 x00, 0 x06, 0 x0f);
if (ret < 0 )
return ret;
for (i = 0 ; i < ARRAY_SIZE(friio_init_cmds); i++) {
ret = gl861_short_write(d, 0 x00, friio_init_cmds[i][0 ],
friio_init_cmds[i][1 ]);
if (ret < 0 )
return ret;
}
return 0 ;
}
/*
* DVB callbacks for Friio
*/
static int friio_power_ctrl(struct dvb_usb_device *d, int onoff)
{
return onoff ? friio_reset(d) : 0 ;
}
static int friio_frontend_attach(struct dvb_usb_adapter *adap)
{
const struct i2c_board_info *info;
struct dvb_usb_device *d;
struct tc90522_config cfg;
struct i2c_client *cl;
struct gl861 *priv;
info = &friio_config.demod_info;
cfg = friio_config.demod_cfg;
d = adap_to_d(adap);
cl = dvb_module_probe("tc90522" , info->type,
&d->i2c_adap, info->addr, &cfg);
if (!cl)
return -ENODEV;
adap->fe[0 ] = cfg.fe;
priv = adap_to_priv(adap);
priv->i2c_client_demod = cl;
priv->demod_sub_i2c = cfg.tuner_i2c;
return 0 ;
}
static int friio_frontend_detach(struct dvb_usb_adapter *adap)
{
struct gl861 *priv;
priv = adap_to_priv(adap);
dvb_module_release(priv->i2c_client_demod);
return 0 ;
}
static int friio_tuner_attach(struct dvb_usb_adapter *adap)
{
const struct i2c_board_info *info;
struct dvb_pll_config cfg;
struct i2c_client *cl;
struct gl861 *priv;
priv = adap_to_priv(adap);
info = &friio_config.tuner_info;
cfg = friio_config.tuner_cfg;
cfg.fe = adap->fe[0 ];
cl = dvb_module_probe("dvb_pll" , info->type,
priv->demod_sub_i2c, info->addr, &cfg);
if (!cl)
return -ENODEV;
priv->i2c_client_tuner = cl;
return 0 ;
}
static int friio_tuner_detach(struct dvb_usb_adapter *adap)
{
struct gl861 *priv;
priv = adap_to_priv(adap);
dvb_module_release(priv->i2c_client_tuner);
return 0 ;
}
static int friio_init(struct dvb_usb_device *d)
{
int i;
int ret;
struct gl861 *priv;
static const u8 demod_init[][2 ] = {
{0 x01, 0 x40}, {0 x04, 0 x38}, {0 x05, 0 x40}, {0 x07, 0 x40},
{0 x0f, 0 x4f}, {0 x11, 0 x21}, {0 x12, 0 x0b}, {0 x13, 0 x2f},
{0 x14, 0 x31}, {0 x16, 0 x02}, {0 x21, 0 xc4}, {0 x22, 0 x20},
{0 x2c, 0 x79}, {0 x2d, 0 x34}, {0 x2f, 0 x00}, {0 x30, 0 x28},
{0 x31, 0 x31}, {0 x32, 0 xdf}, {0 x38, 0 x01}, {0 x39, 0 x78},
{0 x3b, 0 x33}, {0 x3c, 0 x33}, {0 x48, 0 x90}, {0 x51, 0 x68},
{0 x5e, 0 x38}, {0 x71, 0 x00}, {0 x72, 0 x08}, {0 x77, 0 x00},
{0 xc0, 0 x21}, {0 xc1, 0 x10}, {0 xe4, 0 x1a}, {0 xea, 0 x1f},
{0 x77, 0 x00}, {0 x71, 0 x00}, {0 x71, 0 x00}, {0 x76, 0 x0c},
};
/* power on LNA? */
ret = friio_ext_ctl(d, FRIIO_LED_STOPPED, true );
if (ret < 0 )
return ret;
msleep(20 );
/* init/config demod */
priv = d_to_priv(d);
for (i = 0 ; i < ARRAY_SIZE(demod_init); i++) {
int ret;
ret = i2c_master_send(priv->i2c_client_demod, demod_init[i], 2 );
if (ret < 0 )
return ret;
}
msleep(100 );
return 0 ;
}
static void friio_exit(struct dvb_usb_device *d)
{
friio_ext_ctl(d, FRIIO_LED_STOPPED, false );
}
static int friio_streaming_ctrl(struct dvb_frontend *fe, int onoff)
{
u32 led_color;
led_color = onoff ? FRIIO_LED_RUNNING : FRIIO_LED_STOPPED;
return friio_ext_ctl(fe_to_d(fe), led_color, true );
}
static struct dvb_usb_device_properties friio_props = {
.driver_name = KBUILD_MODNAME,
.owner = THIS_MODULE,
.adapter_nr = adapter_nr,
.size_of_priv = sizeof (struct gl861),
.i2c_algo = &gl861_i2c_algo,
.power_ctrl = friio_power_ctrl,
.frontend_attach = friio_frontend_attach,
.frontend_detach = friio_frontend_detach,
.tuner_attach = friio_tuner_attach,
.tuner_detach = friio_tuner_detach,
.init = friio_init,
.exit = friio_exit,
.streaming_ctrl = friio_streaming_ctrl,
.num_adapters = 1 ,
.adapter = {
{
.stream = DVB_USB_STREAM_BULK(0 x01, 8 , 16384 ),
}
}
};
static const struct usb_device_id gl861_id_table[] = {
{ DVB_USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580_55801,
&gl861_props, "MSI Mega Sky 55801 DVB-T USB2.0" , NULL) },
{ DVB_USB_DEVICE(USB_VID_ALINK, USB_PID_ALINK_DTU,
&gl861_props, "A-LINK DTU DVB-T USB2.0" , NULL) },
{ DVB_USB_DEVICE(USB_VID_774, USB_PID_FRIIO_WHITE,
&friio_props, "774 Friio White ISDB-T USB2.0" , NULL) },
{ }
};
MODULE_DEVICE_TABLE(usb, gl861_id_table);
static struct usb_driver gl861_usb_driver = {
.name = KBUILD_MODNAME,
.id_table = gl861_id_table,
.probe = dvb_usbv2_probe,
.disconnect = dvb_usbv2_disconnect,
.suspend = dvb_usbv2_suspend,
.resume = dvb_usbv2_resume,
.reset_resume = dvb_usbv2_reset_resume,
.no_dynamic_id = 1 ,
.soft_unbind = 1 ,
};
module_usb_driver(gl861_usb_driver);
MODULE_AUTHOR("Carl Lundqvist <comabug@gmail.com>" );
MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / GL861" );
MODULE_VERSION("0.1" );
MODULE_LICENSE("GPL" );
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