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@@ -0,0 +1,440 @@
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+/*
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+ * E3C EC168 DVB USB driver
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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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+
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+#include "ec168.h"
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+#include "ec100.h"
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+#include "mxl5005s.h"
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+
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+/* debug */
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+static int dvb_usb_ec168_debug;
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+module_param_named(debug, dvb_usb_ec168_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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+
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+static struct ec100_config ec168_ec100_config;
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+
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+static int ec168_rw_udev(struct usb_device *udev, struct ec168_req *req)
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+{
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+ int ret;
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+ unsigned int pipe;
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+ u8 request, requesttype;
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+ u8 buf[req->size];
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+
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+ switch (req->cmd) {
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+ case DOWNLOAD_FIRMWARE:
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+ case GPIO:
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+ case WRITE_I2C:
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+ case STREAMING_CTRL:
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+ requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
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+ request = req->cmd;
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+ break;
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+ case READ_I2C:
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+ requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
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+ request = req->cmd;
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+ break;
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+ case GET_CONFIG:
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+ requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
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+ request = CONFIG;
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+ break;
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+ case SET_CONFIG:
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+ requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
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+ request = CONFIG;
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+ break;
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+ case WRITE_DEMOD:
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+ requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
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+ request = DEMOD_RW;
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+ break;
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+ case READ_DEMOD:
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+ requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
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+ request = DEMOD_RW;
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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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+
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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->size);
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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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+
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+ msleep(1); /* avoid I2C errors */
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+
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+ ret = usb_control_msg(udev, pipe, request, requesttype, req->value,
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+ req->index, buf, sizeof(buf), EC168_USB_TIMEOUT);
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+
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+ ec168_debug_dump(request, requesttype, req->value, req->index, buf,
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+ req->size, deb_xfer);
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+
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+ if (ret < 0)
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+ goto error;
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+ else
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+ ret = 0;
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+
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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->size);
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+
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+ return ret;
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+error:
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+ deb_info("%s: failed:%d\n", __func__, ret);
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+ return ret;
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+}
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+
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+static int ec168_ctrl_msg(struct dvb_usb_device *d, struct ec168_req *req)
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+{
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+ return ec168_rw_udev(d->udev, req);
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+}
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+
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+/* I2C */
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+static int ec168_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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+ struct ec168_req req;
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+ int i = 0;
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+ int ret;
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+
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+ if (num > 2)
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+ return -EINVAL;
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+
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+ if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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+ return -EAGAIN;
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+
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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 == ec168_ec100_config.demod_address) {
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+ req.cmd = READ_DEMOD;
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+ req.value = 0;
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+ req.index = 0xff00 + msg[i].buf[0]; /* reg */
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+ req.size = msg[i+1].len; /* bytes to read */
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+ req.data = &msg[i+1].buf[0];
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+ ret = ec168_ctrl_msg(d, &req);
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+ i += 2;
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+ } else {
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+ err("I2C read not implemented");
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+ ret = -ENOSYS;
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+ i += 2;
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+ }
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+ } else {
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+ if (msg[i].addr == ec168_ec100_config.demod_address) {
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+ req.cmd = WRITE_DEMOD;
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+ req.value = msg[i].buf[1]; /* val */
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+ req.index = 0xff00 + msg[i].buf[0]; /* reg */
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+ req.size = 0;
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+ req.data = NULL;
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+ ret = ec168_ctrl_msg(d, &req);
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+ i += 1;
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+ } else {
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+ req.cmd = WRITE_I2C;
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+ req.value = msg[i].buf[0]; /* val */
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+ req.index = 0x0100 + msg[i].addr; /* I2C addr */
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+ req.size = msg[i].len-1;
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+ req.data = &msg[i].buf[1];
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+ ret = ec168_ctrl_msg(d, &req);
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+ i += 1;
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+ }
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+ }
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+ if (ret)
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+ goto error;
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+
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+ }
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+ ret = i;
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+
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+error:
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+ mutex_unlock(&d->i2c_mutex);
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+ return i;
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+}
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+
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+
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+static u32 ec168_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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+
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+static struct i2c_algorithm ec168_i2c_algo = {
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+ .master_xfer = ec168_i2c_xfer,
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+ .functionality = ec168_i2c_func,
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+};
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+
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+/* Callbacks for DVB USB */
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+static struct ec100_config ec168_ec100_config = {
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+ .demod_address = 0xff, /* not real address, demod is integrated */
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+};
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+
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+static int ec168_ec100_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(ec100_attach, &ec168_ec100_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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+
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+ return 0;
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+}
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+
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+static struct mxl5005s_config ec168_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_OFF,
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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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+
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+static int ec168_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
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+{
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+ deb_info("%s:\n", __func__);
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+ return dvb_attach(mxl5005s_attach, adap->fe, &adap->dev->i2c_adap,
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+ &ec168_mxl5003s_config) == NULL ? -ENODEV : 0;
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+}
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+
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+static int ec168_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
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+{
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+ struct ec168_req req = {STREAMING_CTRL, 0x7f01, 0x0202, 0, NULL};
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+ deb_info("%s: onoff:%d\n", __func__, onoff);
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+ if (onoff)
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+ req.index = 0x0102;
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+ return ec168_ctrl_msg(adap->dev, &req);
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+}
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+
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+static int ec168_download_firmware(struct usb_device *udev,
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+ const struct firmware *fw)
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+{
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+ int i, len, packets, remainder, ret;
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+ u16 addr = 0x0000; /* firmware start address */
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+ struct ec168_req req = {DOWNLOAD_FIRMWARE, 0, 0, 0, NULL};
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+ deb_info("%s:\n", __func__);
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+
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+ #define FW_PACKET_MAX_DATA 2048
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+ packets = fw->size / FW_PACKET_MAX_DATA;
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+ remainder = fw->size % FW_PACKET_MAX_DATA;
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+ len = FW_PACKET_MAX_DATA;
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+ for (i = 0; i <= packets; i++) {
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+ if (i == packets) /* set size of the last packet */
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+ len = remainder;
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+
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+ req.size = len;
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+ req.data = (u8 *)(fw->data + i * FW_PACKET_MAX_DATA);
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+ req.index = addr;
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+ addr += FW_PACKET_MAX_DATA;
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+
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+ ret = ec168_rw_udev(udev, &req);
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+ if (ret) {
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+ err("firmware download failed:%d packet:%d", ret, i);
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+ goto error;
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+ }
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+ }
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+ req.size = 0;
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+
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+ /* set "warm"? */
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+ req.cmd = SET_CONFIG;
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+ req.value = 0;
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+ req.index = 0x0001;
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+ ret = ec168_rw_udev(udev, &req);
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+ if (ret)
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+ goto error;
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+
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+ /* really needed - no idea what does */
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+ req.cmd = GPIO;
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+ req.value = 0;
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+ req.index = 0x0206;
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+ ret = ec168_rw_udev(udev, &req);
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+ if (ret)
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+ goto error;
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+
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+ /* activate tuner I2C? */
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+ req.cmd = WRITE_I2C;
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+ req.value = 0;
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+ req.index = 0x00c6;
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+ ret = ec168_rw_udev(udev, &req);
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+ if (ret)
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+ goto error;
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+
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+ return ret;
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+error:
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+ deb_info("%s: failed:%d\n", __func__, ret);
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+ return ret;
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+}
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+
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+static int ec168_identify_state(struct usb_device *udev,
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+ struct dvb_usb_device_properties *props,
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+ struct dvb_usb_device_description **desc, int *cold)
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+{
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+ int ret;
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+ u8 reply;
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+ struct ec168_req req = {GET_CONFIG, 0, 1, sizeof(reply), &reply};
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+ deb_info("%s:\n", __func__);
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+
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+ ret = ec168_rw_udev(udev, &req);
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+ if (ret)
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+ goto error;
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+
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+ deb_info("%s: reply:%02x\n", __func__, reply);
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+
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+ if (reply == 0x01)
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+ *cold = 0;
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+ else
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+ *cold = 1;
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+
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+ return ret;
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+error:
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+ deb_info("%s: failed:%d\n", __func__, ret);
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+ return ret;
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+}
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+
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+/* DVB USB Driver stuff */
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+static struct dvb_usb_device_properties ec168_properties;
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+
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+static int ec168_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;
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+ deb_info("%s: interface:%d\n", __func__,
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+ intf->cur_altsetting->desc.bInterfaceNumber);
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+
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+ ret = dvb_usb_device_init(intf, &ec168_properties, THIS_MODULE, NULL,
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+ adapter_nr);
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+ if (ret)
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+ goto error;
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+
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+ return ret;
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+error:
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+ deb_info("%s: failed:%d\n", __func__, ret);
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+ return ret;
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+}
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+
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+#define E3C_EC168_1689 0
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+#define E3C_EC168_FFFA 1
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+#define E3C_EC168_FFFB 2
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+#define E3C_EC168_1001 3
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+#define E3C_EC168_1002 4
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+
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+static struct usb_device_id ec168_id[] = {
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+ [E3C_EC168_1689] =
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+ {USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168)},
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+ [E3C_EC168_FFFA] =
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+ {USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_2)},
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+ [E3C_EC168_FFFB] =
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+ {USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_3)},
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+ [E3C_EC168_1001] =
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+ {USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_4)},
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+ [E3C_EC168_1002] =
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+ {USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_5)},
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+ {} /* terminating entry */
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+};
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+
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+MODULE_DEVICE_TABLE(usb, ec168_id);
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+
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+static struct dvb_usb_device_properties ec168_properties = {
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+ .caps = DVB_USB_IS_AN_I2C_ADAPTER,
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+
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+ .usb_ctrl = DEVICE_SPECIFIC,
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+ .download_firmware = ec168_download_firmware,
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+ .firmware = "dvb-usb-ec168.fw",
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+ .no_reconnect = 1,
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+
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+ .size_of_priv = 0,
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+
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+ .num_adapters = 1,
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+ .adapter = {
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+ {
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+ .streaming_ctrl = ec168_streaming_ctrl,
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+ .frontend_attach = ec168_ec100_frontend_attach,
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+ .tuner_attach = ec168_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 = (32*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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+
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+ .identify_state = ec168_identify_state,
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+
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+ .i2c_algo = &ec168_i2c_algo,
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+
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+ .num_device_descs = 1,
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+ .devices = {
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+ {
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+ .name = "E3C EC168 DVB-T USB2.0 reference design",
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+ .cold_ids = {
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+ &ec168_id[E3C_EC168_1689],
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+ &ec168_id[E3C_EC168_FFFA],
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+ &ec168_id[E3C_EC168_FFFB],
|
|
|
+ &ec168_id[E3C_EC168_1001],
|
|
|
+ &ec168_id[E3C_EC168_1002],
|
|
|
+ NULL},
|
|
|
+ .warm_ids = {NULL},
|
|
|
+ },
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+static struct usb_driver ec168_driver = {
|
|
|
+ .name = "dvb_usb_ec168",
|
|
|
+ .probe = ec168_probe,
|
|
|
+ .disconnect = dvb_usb_device_exit,
|
|
|
+ .id_table = ec168_id,
|
|
|
+};
|
|
|
+
|
|
|
+/* module stuff */
|
|
|
+static int __init ec168_module_init(void)
|
|
|
+{
|
|
|
+ int ret;
|
|
|
+ deb_info("%s:\n", __func__);
|
|
|
+ ret = usb_register(&ec168_driver);
|
|
|
+ if (ret)
|
|
|
+ err("module init failed:%d", ret);
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static void __exit ec168_module_exit(void)
|
|
|
+{
|
|
|
+ deb_info("%s:\n", __func__);
|
|
|
+ /* deregister this driver from the USB subsystem */
|
|
|
+ usb_deregister(&ec168_driver);
|
|
|
+}
|
|
|
+
|
|
|
+module_init(ec168_module_init);
|
|
|
+module_exit(ec168_module_exit);
|
|
|
+
|
|
|
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
|
|
|
+MODULE_DESCRIPTION("E3C EC168 DVB-T USB2.0 driver");
|
|
|
+MODULE_LICENSE("GPL");
|
Antti Palosaari