[GIT PULL FINAL 08/21] cxusb: Add support for TechnoTrend TT-connect CT2-4650 CI

Antti Palosaari
2014-08-22T10:58:30Z

From: Olli Salonen <olli.salonen@iki.fi>

TechnoTrend TT-connect CT2-4650 CI (0b48:3012) is an USB DVB-T2/C tuner with
the following components:

USB interface: Cypress CY7C68013A-56LTXC
Demodulator: Silicon Labs Si2168-A20
Tuner: Silicon Labs Si2158-A20
CI chip: CIMaX SP2HF

The firmware for the tuner is the same as for TechnoTrend TT-TVStick CT2-4400.
See https://www.mail-archive.com/linux-media@vger.kernel.org/msg76944.html

The demodulator needs a firmware that can be extracted from the Windows drivers.
File ttConnect4650_64.sys should be extracted from
http://www.tt-downloads.de/bda-treiber_4.1.0.4.zip (MD5 sum below).

3464bfc37a47b4032568718bacba23fb ttConnect4650_64.sys

Then the firmware can be extracted:
dd if=ttConnect4650_64.sys ibs=1 skip=273376 count=6424 of=dvb-demod-si2168-a20-01.fw

The SP2 CI module requires a definition of a function cxusb_tt_ct2_4650_ci_ctrl
that is passed on to the SP2 driver and called back for CAM operations.

[crope@iki.fi: meld USB ID define patch to this]

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
---
drivers/media/dvb-core/dvb-usb-ids.h | 1 +
drivers/media/usb/dvb-usb/Kconfig | 2 +-
drivers/media/usb/dvb-usb/cxusb.c | 92 +++++++++++++++++++++++++++++++++++-
drivers/media/usb/dvb-usb/cxusb.h | 4 ++
4 files changed, 97 insertions(+), 2 deletions(-)

diff --git a/drivers/media/dvb-core/dvb-usb-ids.h b/drivers/media/dvb-core/dvb-usb-ids.h
index 5135a09..b7a9b98 100644
--- a/drivers/media/dvb-core/dvb-usb-ids.h
+++ b/drivers/media/dvb-core/dvb-usb-ids.h
@@ -244,6 +244,7 @@
#define USB_PID_TECHNOTREND_CONNECT_S2400 0x3006
#define USB_PID_TECHNOTREND_CONNECT_S2400_8KEEPROM 0x3009
#define USB_PID_TECHNOTREND_CONNECT_CT3650 0x300d
+#define USB_PID_TECHNOTREND_CONNECT_CT2_4650_CI 0x3012
#define USB_PID_TECHNOTREND_TVSTICK_CT2_4400 0x3014
#define USB_PID_TERRATEC_CINERGY_DT_XS_DIVERSITY 0x005a
#define USB_PID_TERRATEC_CINERGY_DT_XS_DIVERSITY_2 0x0081
diff --git a/drivers/media/usb/dvb-usb/Kconfig b/drivers/media/usb/dvb-usb/Kconfig
index 10aef21..41d3eb9 100644
--- a/drivers/media/usb/dvb-usb/Kconfig
+++ b/drivers/media/usb/dvb-usb/Kconfig
@@ -130,7 +130,7 @@ config DVB_USB_CXUSB

Medion MD95700 hybrid USB2.0 device.
DViCO FusionHDTV (Bluebird) USB2.0 devices
- TechnoTrend TVStick CT2-4400
+ TechnoTrend TVStick CT2-4400 and CT2-4650 CI devices

config DVB_USB_M920X
tristate "Uli m920x DVB-T USB2.0 support"
diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c
index 87842e9..4ab3459 100644
--- a/drivers/media/usb/dvb-usb/cxusb.c
+++ b/drivers/media/usb/dvb-usb/cxusb.c
@@ -44,6 +44,7 @@
#include "atbm8830.h"
#include "si2168.h"
#include "si2157.h"
+#include "sp2.h"

/* Max transfer size done by I2C transfer functions */
#define MAX_XFER_SIZE 80
@@ -672,6 +673,37 @@ static struct rc_map_table rc_map_d680_dmb_table[] = {
{ 0x0025, KEY_POWER },
};

+static int cxusb_tt_ct2_4650_ci_ctrl(void *priv, u8 read, int addr,
+ u8 data, int *mem)
+{
+ struct dvb_usb_device *d = priv;
+ u8 wbuf[3];
+ u8 rbuf[2];
+ int ret;
+
+ wbuf[0] = (addr >> 8) & 0xff;
+ wbuf[1] = addr & 0xff;
+
+ if (read) {
+ ret = cxusb_ctrl_msg(d, CMD_SP2_CI_READ, wbuf, 2, rbuf, 2);
+ } else {
+ wbuf[2] = data;
+ ret = cxusb_ctrl_msg(d, CMD_SP2_CI_WRITE, wbuf, 3, rbuf, 1);
+ }
+
+ if (ret)
+ goto err;
+
+ if (read)
+ *mem = rbuf[1];
+
+ return 0;
+err:
+ deb_info("%s: ci usb write returned %d\n", __func__, ret);
+ return ret;
+
+}
+
static int cxusb_dee1601_demod_init(struct dvb_frontend* fe)
{
static u8 clock_config [] = { CLOCK_CTL, 0x38, 0x28 };
@@ -1350,9 +1382,12 @@ static int cxusb_tt_ct2_4400_attach(struct dvb_usb_adapter *adap)
struct i2c_adapter *adapter;
struct i2c_client *client_demod;
struct i2c_client *client_tuner;
+ struct i2c_client *client_ci;
struct i2c_board_info info;
struct si2168_config si2168_config;
struct si2157_config si2157_config;
+ struct sp2_config sp2_config;
+ u8 o[2], i;

/* reset the tuner */
if (cxusb_tt_ct2_4400_gpio_tuner(d, 0) < 0) {
@@ -1409,6 +1444,48 @@ static int cxusb_tt_ct2_4400_attach(struct dvb_usb_adapter *adap)

st->i2c_client_tuner = client_tuner;

+ /* initialize CI */
+ if (d->udev->descriptor.idProduct ==
+ USB_PID_TECHNOTREND_CONNECT_CT2_4650_CI) {
+
+ memcpy(o, "\xc0\x01", 2);
+ cxusb_ctrl_msg(d, CMD_GPIO_WRITE, o, 2, &i, 1);
+ msleep(100);
+
+ memcpy(o, "\xc0\x00", 2);
+ cxusb_ctrl_msg(d, CMD_GPIO_WRITE, o, 2, &i, 1);
+ msleep(100);
+
+ memset(&sp2_config, 0, sizeof(sp2_config));
+ sp2_config.dvb_adap = &adap->dvb_adap;
+ sp2_config.priv = d;
+ sp2_config.ci_control = cxusb_tt_ct2_4650_ci_ctrl;
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ strlcpy(info.type, "sp2", I2C_NAME_SIZE);
+ info.addr = 0x40;
+ info.platform_data = &sp2_config;
+ request_module(info.type);
+ client_ci = i2c_new_device(&d->i2c_adap, &info);
+ if (client_ci == NULL || client_ci->dev.driver == NULL) {
+ module_put(client_tuner->dev.driver->owner);
+ i2c_unregister_device(client_tuner);
+ module_put(client_demod->dev.driver->owner);
+ i2c_unregister_device(client_demod);
+ return -ENODEV;
+ }
+ if (!try_module_get(client_ci->dev.driver->owner)) {
+ i2c_unregister_device(client_ci);
+ module_put(client_tuner->dev.driver->owner);
+ i2c_unregister_device(client_tuner);
+ module_put(client_demod->dev.driver->owner);
+ i2c_unregister_device(client_demod);
+ return -ENODEV;
+ }
+
+ st->i2c_client_ci = client_ci;
+
+ }
+
return 0;
}

@@ -1538,6 +1615,13 @@ static void cxusb_disconnect(struct usb_interface *intf)
struct cxusb_state *st = d->priv;
struct i2c_client *client;

+ /* remove I2C client for CI */
+ client = st->i2c_client_ci;
+ if (client) {
+ module_put(client->dev.driver->owner);
+ i2c_unregister_device(client);
+ }
+
/* remove I2C client for tuner */
client = st->i2c_client_tuner;
if (client) {
@@ -1577,6 +1661,7 @@ static struct usb_device_id cxusb_table [] = {
{ USB_DEVICE(USB_VID_CONEXANT, USB_PID_CONEXANT_D680_DMB) },
{ USB_DEVICE(USB_VID_CONEXANT, USB_PID_MYGICA_D689) },
{ USB_DEVICE(USB_VID_TECHNOTREND, USB_PID_TECHNOTREND_TVSTICK_CT2_4400) },
+ { USB_DEVICE(USB_VID_TECHNOTREND, USB_PID_TECHNOTREND_CONNECT_CT2_4650_CI) },
{} /* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, cxusb_table);
@@ -2266,13 +2351,18 @@ static struct dvb_usb_device_properties cxusb_tt_ct2_4400_properties = {
.rc_interval = 150,
},

- .num_device_descs = 1,
+ .num_device_descs = 2,
.devices = {
{
"TechnoTrend TVStick CT2-4400",
{ NULL },
{ &cxusb_table[20], NULL },
},
+ {
+ "TechnoTrend TT-connect CT2-4650 CI",
+ { NULL },
+ { &cxusb_table[21], NULL },
+ },
}
};

diff --git a/drivers/media/usb/dvb-usb/cxusb.h b/drivers/media/usb/dvb-usb/cxusb.h
index 527ff79..29f3e2e 100644
--- a/drivers/media/usb/dvb-usb/cxusb.h
+++ b/drivers/media/usb/dvb-usb/cxusb.h
@@ -28,10 +28,14 @@
#define CMD_ANALOG 0x50
#define CMD_DIGITAL 0x51

+#define CMD_SP2_CI_WRITE 0x70
+#define CMD_SP2_CI_READ 0x71
+
struct cxusb_state {
u8 gpio_write_state[3];
struct i2c_client *i2c_client_demod;
struct i2c_client *i2c_client_tuner;
+ struct i2c_client *i2c_client_ci;
};

#endif