/* DVB USB compliant linux driver for GL861 USB2.0 devices.
*
* 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, version 2.
*
* see Documentation/media/dvb-drivers/dvb-usb.rst for more information
*/
#include <linux/string.h>
#include "gl861.h"
#include "zl10353.h"
#include "qt1010.h"
#include "tc90522.h"
#include "dvb-pll.h"
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr,
u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
{
u16 index;
u16 value = addr << (8 + 1);
int wo = (rbuf == NULL || rlen == 0); /* write-only */
u8 req, type;
u8 *buf;
int ret;
if (wo) {
req = GL861_REQ_I2C_WRITE;
type = GL861_WRITE;
buf = kmemdup(wbuf, wlen, GFP_KERNEL);
} else { /* rw */
req = GL861_REQ_I2C_READ;
type = GL861_READ;
buf = kmalloc(rlen, GFP_KERNEL);
}
if (!buf)
return -ENOMEM;
switch (wlen) {
case 1:
index = wbuf[0];
break;
case 2:
index = wbuf[0];
value = value + wbuf[1];
break;
default:
dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n",
KBUILD_MODNAME, wlen);
kfree(buf);
return -EINVAL;
}
usleep_range(1000, 2000); /* avoid I2C errors */
ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type,
value, index, buf, rlen, 2000);
if (!wo && ret > 0)
memcpy(rbuf, buf, rlen);
kfree(buf);
return ret;
}
/* I2C */
static int gl861_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 (gl861_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 (gl861_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 gl861_i2c_func(struct i2c_adapter *adapter)
{
return I2C_FUNC_I2C;
}
static struct i2c_algorithm gl861_i2c_algo = {
.master_xfer = gl861_i2c_xfer,
.functionality = gl861_i2c_func,
};
/* Callbacks for DVB USB */
static struct zl10353_config gl861_zl10353_config = {
.demod_address = 0x0f,
.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 = 0x62
};
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,
.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(0x81, 7, 512),
}
}
};
/*
* For Friio
*/
struct friio_priv {
struct i2c_adapter *demod_sub_i2c;
struct i2c_client *i2c_client_demod;
struct i2c_client *i2c_client_tuner;
struct i2c_adapter tuner_adap;
};
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, 0x18), },
.tuner_info = { I2C_BOARD_INFO("tua6034_friio", 0x60), },
};
/* For another type of I2C:
* message sent by a USB control-read/write transaction with data stage.
* Used in init/config of Friio.
*/
static int
gl861_i2c_write_ex(struct dvb_usb_device *d, u8 addr, u8 *wbuf, u16 wlen)
{
u8 *buf;
int ret;
buf = kmemdup(wbuf, wlen, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
GL861_REQ_I2C_RAW, GL861_WRITE,
addr << (8 + 1), 0x0100, buf, wlen, 2000);
kfree(buf);
return ret;
}
static int
gl861_i2c_read_ex(struct dvb_usb_device *d, u8 addr, u8 *rbuf, u16 rlen)
{
u8 *buf;
int ret;
buf = kmalloc(rlen, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0),
GL861_REQ_I2C_READ, GL861_READ,
addr << (8 + 1), 0x0100, buf, rlen, 2000);
if (ret > 0 && rlen > 0)
memcpy(buf, rbuf, rlen);
kfree(buf);
return ret;
}
/* For I2C transactions to the tuner of Friio (dvb_pll).
*
* Friio uses irregular USB encapsulation for tuner i2c transactions:
* write transacions are encapsulated with a different USB 'request' value.
*
* Although all transactions are sent via the demod(tc90522)
* and the demod provides an i2c adapter for them, it cannot be used in Friio
* since it assumes using the same parent adapter with the demod,
* which does not use the request value and uses same one for both read/write.
* So we define a dedicated i2c adapter here.
*/
static int
friio_i2c_tuner_read(struct dvb_usb_device *d, struct i2c_msg *msg)
{
struct friio_priv *priv;
u8 addr;
priv = d_to_priv(d);
addr = priv->i2c_client_demod->addr;
return gl861_i2c_read_ex(d, addr, msg->buf, msg->len);
}
static int
friio_i2c_tuner_write(struct dvb_usb_device *d, struct i2c_msg *msg)
{
u8 *buf;
int ret;
struct friio_priv *priv;
priv = d_to_priv(d);
if (msg->len < 1)
return -EINVAL;
buf = kmalloc(msg->len + 1, GFP_KERNEL);
if (!buf)
return -ENOMEM;
buf[0] = msg->addr << 1;
memcpy(buf + 1, msg->buf, msg->len);
ret = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev, 0),
GL861_REQ_I2C_RAW, GL861_WRITE,
priv->i2c_client_demod->addr << (8 + 1),
0xFE, buf, msg->len + 1, 2000);
kfree(buf);
return ret;
}
static int friio_tuner_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++) {
int ret;
if (msg[i].flags & I2C_M_RD)
ret = friio_i2c_tuner_read(d, &msg[i]);
else
ret = friio_i2c_tuner_write(d, &msg[i]);
if (ret < 0)
break;
usleep_range(1000, 2000); /* avoid I2C errors */
}
mutex_unlock(&d->i2c_mutex);
return i;
}
static struct i2c_algorithm friio_tuner_i2c_algo = {
.master_xfer = friio_tuner_i2c_xfer,
.functionality = gl861_i2c_func,
};
/* 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 0x6400ff64
#define FRIIO_LED_STOPPED 0x96ff00ff
/* 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 = 0x00;
msg.flags = 0;
msg.len = 2;
msg.buf = buf;
buf[0] = 0x00;
/* 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 << 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 must be done before any activities like I2C,
* but friio_init() is called by dvb-usbv2 after {_frontend, _tuner}_attach(),
* where I2C communication is used.
* 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[2], rbuf[2];
static const u8 friio_init_cmds[][2] = {
{0x33, 0x08}, {0x37, 0x40}, {0x3a, 0x1f}, {0x3b, 0xff},
{0x3c, 0x1f}, {0x3d, 0xff}, {0x38, 0x00}, {0x35, 0x00},
{0x39, 0x00}, {0x36, 0x00},
};
ret = usb_set_interface(d->udev, 0, 0);
if (ret < 0)
return ret;
wbuf[0] = 0x11;
wbuf[1] = 0x02;
ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
if (ret < 0)
return ret;
usleep_range(2000, 3000);
wbuf[0] = 0x11;
wbuf[1] = 0x00;
ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
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] = 0x03;
wbuf[1] = 0x80;
ret = gl861_i2c_write_ex(d, 0x09, wbuf, 2);
if (ret < 0)
return ret;
usleep_range(2000, 3000);
ret = gl861_i2c_read_ex(d, 0x09, rbuf, 2);
if (ret < 0)
return ret;
if (rbuf[0] != 0xff || rbuf[1] != 0xff)
return -ENODEV;
usleep_range(1000, 2000);
ret = gl861_i2c_write_ex(d, 0x48, wbuf, 2);
if (ret < 0)
return ret;
usleep_range(2000, 3000);
ret = gl861_i2c_read_ex(d, 0x48, rbuf, 2);
if (ret < 0)
return ret;
if (rbuf[0] != 0xff || rbuf[1] != 0xff)
return -ENODEV;
wbuf[0] = 0x30;
wbuf[1] = 0x04;
ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
if (ret < 0)
return ret;
wbuf[0] = 0x00;
wbuf[1] = 0x01;
ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
if (ret < 0)
return ret;
wbuf[0] = 0x06;
wbuf[1] = 0x0f;
ret = gl861_i2c_msg(d, 0x00, wbuf, 2, NULL, 0);
if (ret < 0)
return ret;
for (i = 0; i < ARRAY_SIZE(friio_init_cmds); i++) {
ret = gl861_i2c_msg(d, 0x00, (u8 *)friio_init_cmds[i], 2,
NULL, 0);
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 friio_priv *priv;
info = &friio_config.demod_info;
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;
/* ignore cfg.tuner_i2c and create new one */
priv = adap_to_priv(adap);
priv->i2c_client_demod = cl;
priv->tuner_adap.algo = &friio_tuner_i2c_algo;
priv->tuner_adap.dev.parent = &d->udev->dev;
strscpy(priv->tuner_adap.name, d->name, sizeof(priv->tuner_adap.name));
strlcat(priv->tuner_adap.name, "-tuner", sizeof(priv->tuner_adap.name));
priv->demod_sub_i2c = &priv->tuner_adap;
i2c_set_adapdata(&priv->tuner_adap, d);
return i2c_add_adapter(&priv->tuner_adap);
}
static int friio_frontend_detach(struct dvb_usb_adapter *adap)
{
struct friio_priv *priv;
priv = adap_to_priv(adap);
i2c_del_adapter(&priv->tuner_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 friio_priv *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 friio_priv *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 friio_priv *priv;
static const u8 demod_init[][2] = {
{0x01, 0x40}, {0x04, 0x38}, {0x05, 0x40}, {0x07, 0x40},
{0x0f, 0x4f}, {0x11, 0x21}, {0x12, 0x0b}, {0x13, 0x2f},
{0x14, 0x31}, {0x16, 0x02}, {0x21, 0xc4}, {0x22, 0x20},
{0x2c, 0x79}, {0x2d, 0x34}, {0x2f, 0x00}, {0x30, 0x28},
{0x31, 0x31}, {0x32, 0xdf}, {0x38, 0x01}, {0x39, 0x78},
{0x3b, 0x33}, {0x3c, 0x33}, {0x48, 0x90}, {0x51, 0x68},
{0x5e, 0x38}, {0x71, 0x00}, {0x72, 0x08}, {0x77, 0x00},
{0xc0, 0x21}, {0xc1, 0x10}, {0xe4, 0x1a}, {0xea, 0x1f},
{0x77, 0x00}, {0x71, 0x00}, {0x71, 0x00}, {0x76, 0x0c},
};
/* 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 friio_priv),
.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(0x01, 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_VID_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");
