// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* DVB USB Linux driver for AME DTV-5100 USB2.0 DVB-T
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*
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* Copyright (C) 2008 Antoine Jacquet <royale@zerezo.com>
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* http://royale.zerezo.com/dtv5100/
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*
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* Inspired by gl861.c and au6610.c drivers
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*/
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#include "dtv5100.h"
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#include "zl10353.h"
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#include "qt1010.h"
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/* debug */
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static int dvb_usb_dtv5100_debug;
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module_param_named(debug, dvb_usb_dtv5100_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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struct dtv5100_state {
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unsigned char data[80];
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};
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static int dtv5100_i2c_msg(struct dvb_usb_device *d, u8 addr,
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u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
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{
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struct dtv5100_state *st = d->priv;
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unsigned int pipe;
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u8 request;
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u8 type;
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u16 value;
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u16 index;
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switch (wlen) {
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case 1:
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/* write { reg }, read { value } */
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pipe = usb_rcvctrlpipe(d->udev, 0);
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request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_READ :
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DTV5100_TUNER_READ);
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type = USB_TYPE_VENDOR | USB_DIR_IN;
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value = 0;
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break;
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case 2:
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/* write { reg, value } */
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pipe = usb_sndctrlpipe(d->udev, 0);
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request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_WRITE :
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DTV5100_TUNER_WRITE);
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type = USB_TYPE_VENDOR | USB_DIR_OUT;
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value = wbuf[1];
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break;
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default:
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warn("wlen = %x, aborting.", wlen);
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return -EINVAL;
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}
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index = (addr << 8) + wbuf[0];
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memcpy(st->data, rbuf, rlen);
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msleep(1); /* avoid I2C errors */
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return usb_control_msg(d->udev, pipe, request,
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type, value, index, st->data, rlen,
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DTV5100_USB_TIMEOUT);
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}
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/* I2C */
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static int dtv5100_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;
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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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for (i = 0; i < num; i++) {
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/* write/read request */
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if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
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if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf,
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msg[i].len, msg[i+1].buf,
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msg[i+1].len) < 0)
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break;
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i++;
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} else if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf,
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msg[i].len, NULL, 0) < 0)
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break;
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}
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mutex_unlock(&d->i2c_mutex);
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return i;
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}
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static u32 dtv5100_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 dtv5100_i2c_algo = {
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.master_xfer = dtv5100_i2c_xfer,
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.functionality = dtv5100_i2c_func,
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};
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/* Callbacks for DVB USB */
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static struct zl10353_config dtv5100_zl10353_config = {
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.demod_address = DTV5100_DEMOD_ADDR,
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.no_tuner = 1,
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.parallel_ts = 1,
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};
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static int dtv5100_frontend_attach(struct dvb_usb_adapter *adap)
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{
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adap->fe_adap[0].fe = dvb_attach(zl10353_attach, &dtv5100_zl10353_config,
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&adap->dev->i2c_adap);
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if (adap->fe_adap[0].fe == NULL)
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return -EIO;
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/* disable i2c gate, or it won't work... is this safe? */
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adap->fe_adap[0].fe->ops.i2c_gate_ctrl = NULL;
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return 0;
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}
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static struct qt1010_config dtv5100_qt1010_config = {
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.i2c_address = DTV5100_TUNER_ADDR
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};
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static int dtv5100_tuner_attach(struct dvb_usb_adapter *adap)
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{
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return dvb_attach(qt1010_attach,
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adap->fe_adap[0].fe, &adap->dev->i2c_adap,
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&dtv5100_qt1010_config) == NULL ? -ENODEV : 0;
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}
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/* DVB USB Driver stuff */
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static struct dvb_usb_device_properties dtv5100_properties;
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static int dtv5100_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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{
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int i, ret;
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struct usb_device *udev = interface_to_usbdev(intf);
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/* initialize non qt1010/zl10353 part? */
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for (i = 0; dtv5100_init[i].request; i++) {
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ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
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dtv5100_init[i].request,
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USB_TYPE_VENDOR | USB_DIR_OUT,
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dtv5100_init[i].value,
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dtv5100_init[i].index, NULL, 0,
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DTV5100_USB_TIMEOUT);
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if (ret)
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return ret;
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}
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ret = dvb_usb_device_init(intf, &dtv5100_properties,
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THIS_MODULE, NULL, adapter_nr);
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if (ret)
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return ret;
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return 0;
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}
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static struct usb_device_id dtv5100_table[] = {
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{ USB_DEVICE(0x06be, 0xa232) },
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, dtv5100_table);
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static struct dvb_usb_device_properties dtv5100_properties = {
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.caps = DVB_USB_IS_AN_I2C_ADAPTER,
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.usb_ctrl = DEVICE_SPECIFIC,
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.size_of_priv = sizeof(struct dtv5100_state),
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.num_adapters = 1,
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.adapter = {{
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.num_frontends = 1,
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.fe = {{
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.frontend_attach = dtv5100_frontend_attach,
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.tuner_attach = dtv5100_tuner_attach,
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.stream = {
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.type = USB_BULK,
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.count = 8,
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.endpoint = 0x82,
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.u = {
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.bulk = {
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.buffersize = 4096,
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}
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}
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},
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}},
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} },
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.i2c_algo = &dtv5100_i2c_algo,
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.num_device_descs = 1,
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.devices = {
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{
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.name = "AME DTV-5100 USB2.0 DVB-T",
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.cold_ids = { NULL },
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.warm_ids = { &dtv5100_table[0], NULL },
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},
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}
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};
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static struct usb_driver dtv5100_driver = {
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.name = "dvb_usb_dtv5100",
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.probe = dtv5100_probe,
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.disconnect = dvb_usb_device_exit,
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.id_table = dtv5100_table,
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};
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module_usb_driver(dtv5100_driver);
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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