335 lines
7.9 KiB
C
335 lines
7.9 KiB
C
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/*
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* DVB USB Linux driver for Intel CE6230 DVB-T USB2.0 receiver
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*
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* Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include "ce6230.h"
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#include "zl10353.h"
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#include "mxl5005s.h"
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/* debug */
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static int dvb_usb_ce6230_debug;
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module_param_named(debug, dvb_usb_ce6230_debug, int, 0644);
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MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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static struct zl10353_config ce6230_zl10353_config;
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static int ce6230_rw_udev(struct usb_device *udev, struct req_t *req)
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{
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int ret;
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unsigned int pipe;
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u8 request;
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u8 requesttype;
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u16 value;
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u16 index;
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u8 buf[req->data_len];
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request = req->cmd;
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value = req->value;
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index = req->index;
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switch (req->cmd) {
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case I2C_READ:
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case DEMOD_READ:
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case REG_READ:
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requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
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break;
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case I2C_WRITE:
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case DEMOD_WRITE:
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case REG_WRITE:
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requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
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break;
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default:
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err("unknown command:%02x", req->cmd);
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ret = -EPERM;
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goto error;
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}
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if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
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/* write */
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memcpy(buf, req->data, req->data_len);
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pipe = usb_sndctrlpipe(udev, 0);
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} else {
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/* read */
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pipe = usb_rcvctrlpipe(udev, 0);
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}
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msleep(1); /* avoid I2C errors */
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ret = usb_control_msg(udev, pipe, request, requesttype, value, index,
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buf, sizeof(buf), CE6230_USB_TIMEOUT);
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ce6230_debug_dump(request, requesttype, value, index, buf,
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req->data_len, deb_xfer);
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if (ret < 0)
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deb_info("%s: usb_control_msg failed:%d\n", __func__, ret);
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else
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ret = 0;
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/* read request, copy returned data to return buf */
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if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
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memcpy(req->data, buf, req->data_len);
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error:
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return ret;
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}
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static int ce6230_ctrl_msg(struct dvb_usb_device *d, struct req_t *req)
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{
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return ce6230_rw_udev(d->udev, req);
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}
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/* I2C */
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static int ce6230_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
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int num)
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{
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struct dvb_usb_device *d = i2c_get_adapdata(adap);
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int i = 0;
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struct req_t req;
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int ret = 0;
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memset(&req, 0, sizeof(req));
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if (num > 2)
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return -EINVAL;
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if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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return -EAGAIN;
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while (i < num) {
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if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
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if (msg[i].addr ==
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ce6230_zl10353_config.demod_address) {
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req.cmd = DEMOD_READ;
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req.value = msg[i].addr >> 1;
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req.index = msg[i].buf[0];
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req.data_len = msg[i+1].len;
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req.data = &msg[i+1].buf[0];
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ret = ce6230_ctrl_msg(d, &req);
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} else {
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err("i2c read not implemented");
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ret = -EPERM;
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}
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i += 2;
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} else {
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if (msg[i].addr ==
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ce6230_zl10353_config.demod_address) {
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req.cmd = DEMOD_WRITE;
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req.value = msg[i].addr >> 1;
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req.index = msg[i].buf[0];
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req.data_len = msg[i].len-1;
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req.data = &msg[i].buf[1];
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ret = ce6230_ctrl_msg(d, &req);
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} else {
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req.cmd = I2C_WRITE;
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req.value = 0x2000 + (msg[i].addr >> 1);
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req.index = 0x0000;
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req.data_len = msg[i].len;
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req.data = &msg[i].buf[0];
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ret = ce6230_ctrl_msg(d, &req);
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}
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i += 1;
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}
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if (ret)
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break;
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}
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mutex_unlock(&d->i2c_mutex);
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return ret ? ret : i;
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}
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static u32 ce6230_i2c_func(struct i2c_adapter *adapter)
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{
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return I2C_FUNC_I2C;
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}
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static struct i2c_algorithm ce6230_i2c_algo = {
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.master_xfer = ce6230_i2c_xfer,
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.functionality = ce6230_i2c_func,
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};
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/* Callbacks for DVB USB */
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static struct zl10353_config ce6230_zl10353_config = {
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.demod_address = 0x1e,
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.adc_clock = 450000,
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.if2 = 45700,
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.no_tuner = 1,
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.parallel_ts = 1,
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.clock_ctl_1 = 0x34,
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.pll_0 = 0x0e,
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};
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static int ce6230_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
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{
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deb_info("%s:\n", __func__);
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adap->fe = dvb_attach(zl10353_attach, &ce6230_zl10353_config,
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&adap->dev->i2c_adap);
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if (adap->fe == NULL)
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return -ENODEV;
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return 0;
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}
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static struct mxl5005s_config ce6230_mxl5003s_config = {
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.i2c_address = 0xc6,
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.if_freq = IF_FREQ_4570000HZ,
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.xtal_freq = CRYSTAL_FREQ_16000000HZ,
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.agc_mode = MXL_SINGLE_AGC,
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.tracking_filter = MXL_TF_DEFAULT,
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.rssi_enable = MXL_RSSI_ENABLE,
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.cap_select = MXL_CAP_SEL_ENABLE,
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.div_out = MXL_DIV_OUT_4,
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.clock_out = MXL_CLOCK_OUT_DISABLE,
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.output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
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.top = MXL5005S_TOP_25P2,
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.mod_mode = MXL_DIGITAL_MODE,
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.if_mode = MXL_ZERO_IF,
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.AgcMasterByte = 0x00,
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};
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static int ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
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{
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int ret;
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deb_info("%s:\n", __func__);
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ret = dvb_attach(mxl5005s_attach, adap->fe, &adap->dev->i2c_adap,
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&ce6230_mxl5003s_config) == NULL ? -ENODEV : 0;
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return ret;
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}
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static int ce6230_power_ctrl(struct dvb_usb_device *d, int onoff)
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{
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int ret;
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deb_info("%s: onoff:%d\n", __func__, onoff);
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/* InterfaceNumber 1 / AlternateSetting 0 idle
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InterfaceNumber 1 / AlternateSetting 1 streaming */
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ret = usb_set_interface(d->udev, 1, onoff);
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if (ret)
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err("usb_set_interface failed with error:%d", ret);
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return ret;
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}
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/* DVB USB Driver stuff */
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static struct dvb_usb_device_properties ce6230_properties;
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static int ce6230_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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{
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int ret = 0;
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struct dvb_usb_device *d = NULL;
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deb_info("%s: interface:%d\n", __func__,
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intf->cur_altsetting->desc.bInterfaceNumber);
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if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
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ret = dvb_usb_device_init(intf, &ce6230_properties, THIS_MODULE,
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&d, adapter_nr);
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if (ret)
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err("init failed with error:%d\n", ret);
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}
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return ret;
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}
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static struct usb_device_id ce6230_table[] = {
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{ USB_DEVICE(USB_VID_INTEL, USB_PID_INTEL_CE9500) },
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{ USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A310) },
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, ce6230_table);
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static struct dvb_usb_device_properties ce6230_properties = {
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.caps = DVB_USB_IS_AN_I2C_ADAPTER,
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.usb_ctrl = DEVICE_SPECIFIC,
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.no_reconnect = 1,
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.size_of_priv = 0,
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.num_adapters = 1,
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.adapter = {
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{
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.frontend_attach = ce6230_zl10353_frontend_attach,
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.tuner_attach = ce6230_mxl5003s_tuner_attach,
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.stream = {
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.type = USB_BULK,
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.count = 6,
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.endpoint = 0x82,
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.u = {
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.bulk = {
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.buffersize = (16*512),
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}
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}
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},
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}
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},
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.power_ctrl = ce6230_power_ctrl,
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.i2c_algo = &ce6230_i2c_algo,
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.num_device_descs = 2,
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.devices = {
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{
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.name = "Intel CE9500 reference design",
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.cold_ids = {NULL},
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.warm_ids = {&ce6230_table[0], NULL},
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},
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{
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.name = "AVerMedia A310 USB 2.0 DVB-T tuner",
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.cold_ids = {NULL},
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.warm_ids = {&ce6230_table[1], NULL},
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},
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}
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};
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static struct usb_driver ce6230_driver = {
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.name = "dvb_usb_ce6230",
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.probe = ce6230_probe,
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.disconnect = dvb_usb_device_exit,
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.id_table = ce6230_table,
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};
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/* module stuff */
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static int __init ce6230_module_init(void)
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{
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int ret;
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deb_info("%s:\n", __func__);
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ret = usb_register(&ce6230_driver);
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if (ret)
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err("usb_register failed with error:%d", ret);
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return ret;
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}
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static void __exit ce6230_module_exit(void)
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{
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deb_info("%s:\n", __func__);
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/* deregister this driver from the USB subsystem */
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usb_deregister(&ce6230_driver);
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}
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module_init(ce6230_module_init);
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module_exit(ce6230_module_exit);
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MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
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MODULE_DESCRIPTION("Driver for Intel CE6230 DVB-T USB2.0");
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MODULE_LICENSE("GPL");
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