/*
* DVB USB Linux driver for Intel CE6230 DVB-T USB2.0 receiver
*
* Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "ce6230.h"
#include "zl10353.h"
#include "mxl5005s.h"
/* debug */
static int dvb_usb_ce6230_debug;
module_param_named(debug, dvb_usb_ce6230_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
static struct zl10353_config ce6230_zl10353_config;
static int ce6230_rw_udev(struct usb_device *udev, struct req_t *req)
{
int ret;
unsigned int pipe;
u8 request;
u8 requesttype;
u16 value;
u16 index;
u8 buf[req->data_len];
request = req->cmd;
value = req->value;
index = req->index;
switch (req->cmd) {
case I2C_READ:
case DEMOD_READ:
case REG_READ:
requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
break;
case I2C_WRITE:
case DEMOD_WRITE:
case REG_WRITE:
requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
break;
default:
err("unknown command:%02x", req->cmd);
ret = -EPERM;
goto error;
}
if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
/* write */
memcpy(buf, req->data, req->data_len);
pipe = usb_sndctrlpipe(udev, 0);
} else {
/* read */
pipe = usb_rcvctrlpipe(udev, 0);
}
msleep(1); /* avoid I2C errors */
ret = usb_control_msg(udev, pipe, request, requesttype, value, index,
buf, sizeof(buf), CE6230_USB_TIMEOUT);
ce6230_debug_dump(request, requesttype, value, index, buf,
req->data_len, deb_xfer);
if (ret < 0)
deb_info("%s: usb_control_msg failed:%d\n", __func__, ret);
else
ret = 0;
/* read request, copy returned data to return buf */
if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
memcpy(req->data, buf, req->data_len);
error:
return ret;
}
static int ce6230_ctrl_msg(struct dvb_usb_device *d, struct req_t *req)
{
return ce6230_rw_udev(d->udev, req);
}
/* I2C */
static int ce6230_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
int num)
{
struct dvb_usb_device *d = i2c_get_adapdata(adap);
int i = 0;
struct req_t req;
int ret = 0;
memset(&req, 0, sizeof(req));
if (num > 2)
return -EINVAL;
if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
return -EAGAIN;
while (i < num) {
if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
if (msg[i].addr ==
ce6230_zl10353_config.demod_address) {
req.cmd = DEMOD_READ;
req.value = msg[i].addr >> 1;
req.index = msg[i].buf[0];
req.data_len = msg[i+1].len;
req.data = &msg[i+1].buf[0];
ret = ce6230_ctrl_msg(d, &req);
} else {
err("i2c read not implemented");
ret = -EPERM;
}
i += 2;
} else {
if (msg[i].addr ==
ce6230_zl10353_config.demod_address) {
req.cmd = DEMOD_WRITE;
req.value = msg[i].addr >> 1;
req.index = msg[i].buf[0];
req.data_len = msg[i].len-1;
req.data = &msg[i].buf[1];
ret = ce6230_ctrl_msg(d, &req);
} else {
req.cmd = I2C_WRITE;
req.value = 0x2000 + (msg[i].addr >> 1);
req.index = 0x0000;
req.data_len = msg[i].len;
req.data = &msg[i].buf[0];
ret = ce6230_ctrl_msg(d, &req);
}
i += 1;
}
if (ret)
break;
}
mutex_unlock(&d->i2c_mutex);
return ret ? ret : i;
}
static u32 ce6230_i2c_func(struct i2c_adapter *adapter)
{
return I2C_FUNC_I2C;
}
static struct i2c_algorithm ce6230_i2c_algo = {
.master_xfer = ce6230_i2c_xfer,
.functionality = ce6230_i2c_func,
};
/* Callbacks for DVB USB */
static struct zl10353_config ce6230_zl10353_config = {
.demod_address = 0x1e,
.adc_clock = 450000,
.if2 = 45700,
.no_tuner = 1,
.parallel_ts = 1,
.clock_ctl_1 = 0x34,
.pll_0 = 0x0e,
};
static int ce6230_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
{
deb_info("%s:\n", __func__);
adap->fe = dvb_attach(zl10353_attach, &ce6230_zl10353_config,
&adap->dev->i2c_adap);
if (adap->fe == NULL)
return -ENODEV;
return 0;
}
static struct mxl5005s_config ce6230_mxl5003s_config = {
.i2c_address = 0xc6,
.if_freq = IF_FREQ_4570000HZ,
.xtal_freq = CRYSTAL_FREQ_16000000HZ,
.agc_mode = MXL_SINGLE_AGC,
.tracking_filter = MXL_TF_DEFAULT,
.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,
.AgcMasterByte = 0x00,
};
static int ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
{
int ret;
deb_info("%s:\n", __func__);
ret = dvb_attach(mxl5005s_attach, adap->fe, &adap->dev->i2c_adap,
&ce6230_mxl5003s_config) == NULL ? -ENODEV : 0;
return ret;
}
static int ce6230_power_ctrl(struct dvb_usb_device *d, int onoff)
{
int ret;
deb_info("%s: onoff:%d\n", __func__, onoff);
/* InterfaceNumber 1 / AlternateSetting 0 idle
InterfaceNumber 1 / AlternateSetting 1 streaming */
ret = usb_set_interface(d->udev, 1, onoff);
if (ret)
err("usb_set_interface failed with error:%d", ret);
return ret;
}
/* DVB USB Driver stuff */
static struct dvb_usb_device_properties ce6230_properties;
static int ce6230_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
int ret = 0;
struct dvb_usb_device *d = NULL;
deb_info("%s: interface:%d\n", __func__,
intf->cur_altsetting->desc.bInterfaceNumber);
if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
ret = dvb_usb_device_init(intf, &ce6230_properties, THIS_MODULE,
&d, adapter_nr);
if (ret)
err("init failed with error:%d\n", ret);
}
return ret;
}
static struct usb_device_id ce6230_table[] = {
{ USB_DEVICE(USB_VID_INTEL, USB_PID_INTEL_CE9500) },
{ USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A310) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, ce6230_table);
static struct dvb_usb_device_properties ce6230_properties = {
.caps = DVB_USB_IS_AN_I2C_ADAPTER,
.usb_ctrl = DEVICE_SPECIFIC,
.no_reconnect = 1,
.size_of_priv = 0,
.num_adapters = 1,
.adapter = {
{
.frontend_attach = ce6230_zl10353_frontend_attach,
.tuner_attach = ce6230_mxl5003s_tuner_attach,
.stream = {
.type = USB_BULK,
.count = 6,
.endpoint = 0x82,
.u = {
.bulk = {
.buffersize = (16*512),
}
}
},
}
},
.power_ctrl = ce6230_power_ctrl,
.i2c_algo = &ce6230_i2c_algo,
.num_device_descs = 2,
.devices = {
{
.name = "Intel CE9500 reference design",
.cold_ids = {NULL},
.warm_ids = {&ce6230_table[0], NULL},
},
{
.name = "AVerMedia A310 USB 2.0 DVB-T tuner",
.cold_ids = {NULL},
.warm_ids = {&ce6230_table[1], NULL},
},
}
};
static struct usb_driver ce6230_driver = {
.name = "dvb_usb_ce6230",
.probe = ce6230_probe,
.disconnect = dvb_usb_device_exit,
.id_table = ce6230_table,
};
/* module stuff */
static int __init ce6230_module_init(void)
{
int ret;
deb_info("%s:\n", __func__);
ret = usb_register(&ce6230_driver);
if (ret)
err("usb_register failed with error:%d", ret);
return ret;
}
static void __exit ce6230_module_exit(void)
{
deb_info("%s:\n", __func__);
/* deregister this driver from the USB subsystem */
usb_deregister(&ce6230_driver);
}
module_init(ce6230_module_init);
module_exit(ce6230_module_exit);
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
MODULE_DESCRIPTION("Driver for Intel CE6230 DVB-T USB2.0");
MODULE_LICENSE("GPL");
