375 lines
8.8 KiB
C
375 lines
8.8 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/* DVB USB compliant linux driver for Nebula Electronics uDigiTV DVB-T USB2.0
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* receiver
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*
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* Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@posteo.de)
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*
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* partly based on the SDK published by Nebula Electronics
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*
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* see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
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*/
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#include "digitv.h"
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#include "mt352.h"
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#include "nxt6000.h"
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/* debug */
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static int dvb_usb_digitv_debug;
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module_param_named(debug,dvb_usb_digitv_debug, int, 0644);
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MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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#define deb_rc(args...) dprintk(dvb_usb_digitv_debug,0x01,args)
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static int digitv_ctrl_msg(struct dvb_usb_device *d,
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u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
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{
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struct digitv_state *st = d->priv;
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int ret, wo;
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wo = (rbuf == NULL || rlen == 0); /* write-only */
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if (wlen > 4 || rlen > 4)
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return -EIO;
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memset(st->sndbuf, 0, 7);
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memset(st->rcvbuf, 0, 7);
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st->sndbuf[0] = cmd;
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st->sndbuf[1] = vv;
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st->sndbuf[2] = wo ? wlen : rlen;
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if (wo) {
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memcpy(&st->sndbuf[3], wbuf, wlen);
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ret = dvb_usb_generic_write(d, st->sndbuf, 7);
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} else {
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ret = dvb_usb_generic_rw(d, st->sndbuf, 7, st->rcvbuf, 7, 10);
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memcpy(rbuf, &st->rcvbuf[3], rlen);
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}
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return ret;
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}
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/* I2C */
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static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],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 (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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return -EAGAIN;
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if (num > 2)
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warn("more than 2 i2c messages at a time is not handled yet. TODO.");
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for (i = 0; i < num; i++) {
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if (msg[i].len < 1) {
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i = -EOPNOTSUPP;
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break;
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}
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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 (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0,
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msg[i+1].buf,msg[i+1].len) < 0)
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break;
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i++;
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} else
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if (digitv_ctrl_msg(d,USB_WRITE_COFDM, msg[i].buf[0],
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&msg[i].buf[1],msg[i].len-1,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 digitv_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 digitv_i2c_algo = {
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.master_xfer = digitv_i2c_xfer,
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.functionality = digitv_i2c_func,
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};
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/* Callbacks for DVB USB */
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static int digitv_identify_state(struct usb_device *udev,
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const struct dvb_usb_device_properties *props,
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const struct dvb_usb_device_description **desc,
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int *cold)
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{
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*cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0;
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return 0;
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}
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static int digitv_mt352_demod_init(struct dvb_frontend *fe)
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{
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static u8 reset_buf[] = { 0x89, 0x38, 0x8a, 0x2d, 0x50, 0x80 };
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static u8 init_buf[] = { 0x68, 0xa0, 0x8e, 0x40, 0x53, 0x50,
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0x67, 0x20, 0x7d, 0x01, 0x7c, 0x00, 0x7a, 0x00,
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0x79, 0x20, 0x57, 0x05, 0x56, 0x31, 0x88, 0x0f,
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0x75, 0x32 };
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int i;
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for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2)
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mt352_write(fe, &reset_buf[i], 2);
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msleep(1);
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for (i = 0; i < ARRAY_SIZE(init_buf); i += 2)
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mt352_write(fe, &init_buf[i], 2);
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return 0;
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}
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static struct mt352_config digitv_mt352_config = {
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.demod_init = digitv_mt352_demod_init,
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};
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static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe)
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{
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struct dvb_usb_adapter *adap = fe->dvb->priv;
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u8 b[5];
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fe->ops.tuner_ops.calc_regs(fe, b, sizeof(b));
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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return digitv_ctrl_msg(adap->dev, USB_WRITE_TUNER, 0, &b[1], 4, NULL, 0);
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}
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static struct nxt6000_config digitv_nxt6000_config = {
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.clock_inversion = 1,
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};
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static int digitv_frontend_attach(struct dvb_usb_adapter *adap)
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{
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struct digitv_state *st = adap->dev->priv;
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adap->fe_adap[0].fe = dvb_attach(mt352_attach, &digitv_mt352_config,
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&adap->dev->i2c_adap);
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if ((adap->fe_adap[0].fe) != NULL) {
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st->is_nxt6000 = 0;
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return 0;
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}
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adap->fe_adap[0].fe = dvb_attach(nxt6000_attach,
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&digitv_nxt6000_config,
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&adap->dev->i2c_adap);
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if ((adap->fe_adap[0].fe) != NULL) {
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st->is_nxt6000 = 1;
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return 0;
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}
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return -EIO;
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}
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static int digitv_tuner_attach(struct dvb_usb_adapter *adap)
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{
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struct digitv_state *st = adap->dev->priv;
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if (!dvb_attach(dvb_pll_attach, adap->fe_adap[0].fe, 0x60, NULL, DVB_PLL_TDED4))
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return -ENODEV;
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if (st->is_nxt6000)
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adap->fe_adap[0].fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params;
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return 0;
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}
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static struct rc_map_table rc_map_digitv_table[] = {
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{ 0x5f55, KEY_0 },
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{ 0x6f55, KEY_1 },
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{ 0x9f55, KEY_2 },
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{ 0xaf55, KEY_3 },
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{ 0x5f56, KEY_4 },
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{ 0x6f56, KEY_5 },
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{ 0x9f56, KEY_6 },
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{ 0xaf56, KEY_7 },
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{ 0x5f59, KEY_8 },
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{ 0x6f59, KEY_9 },
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{ 0x9f59, KEY_TV },
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{ 0xaf59, KEY_AUX },
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{ 0x5f5a, KEY_DVD },
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{ 0x6f5a, KEY_POWER },
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{ 0x9f5a, KEY_CAMERA }, /* labelled 'Picture' */
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{ 0xaf5a, KEY_AUDIO },
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{ 0x5f65, KEY_INFO },
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{ 0x6f65, KEY_F13 }, /* 16:9 */
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{ 0x9f65, KEY_F14 }, /* 14:9 */
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{ 0xaf65, KEY_EPG },
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{ 0x5f66, KEY_EXIT },
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{ 0x6f66, KEY_MENU },
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{ 0x9f66, KEY_UP },
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{ 0xaf66, KEY_DOWN },
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{ 0x5f69, KEY_LEFT },
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{ 0x6f69, KEY_RIGHT },
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{ 0x9f69, KEY_ENTER },
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{ 0xaf69, KEY_CHANNELUP },
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{ 0x5f6a, KEY_CHANNELDOWN },
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{ 0x6f6a, KEY_VOLUMEUP },
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{ 0x9f6a, KEY_VOLUMEDOWN },
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{ 0xaf6a, KEY_RED },
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{ 0x5f95, KEY_GREEN },
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{ 0x6f95, KEY_YELLOW },
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{ 0x9f95, KEY_BLUE },
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{ 0xaf95, KEY_SUBTITLE },
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{ 0x5f96, KEY_F15 }, /* AD */
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{ 0x6f96, KEY_TEXT },
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{ 0x9f96, KEY_MUTE },
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{ 0xaf96, KEY_REWIND },
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{ 0x5f99, KEY_STOP },
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{ 0x6f99, KEY_PLAY },
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{ 0x9f99, KEY_FASTFORWARD },
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{ 0xaf99, KEY_F16 }, /* chapter */
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{ 0x5f9a, KEY_PAUSE },
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{ 0x6f9a, KEY_PLAY },
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{ 0x9f9a, KEY_RECORD },
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{ 0xaf9a, KEY_F17 }, /* picture in picture */
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{ 0x5fa5, KEY_KPPLUS }, /* zoom in */
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{ 0x6fa5, KEY_KPMINUS }, /* zoom out */
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{ 0x9fa5, KEY_F18 }, /* capture */
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{ 0xafa5, KEY_F19 }, /* web */
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{ 0x5fa6, KEY_EMAIL },
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{ 0x6fa6, KEY_PHONE },
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{ 0x9fa6, KEY_PC },
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};
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static int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
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{
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struct rc_map_table *entry;
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int ret, i;
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u8 key[4];
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u8 b[4] = { 0 };
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*event = 0;
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*state = REMOTE_NO_KEY_PRESSED;
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ret = digitv_ctrl_msg(d, USB_READ_REMOTE, 0, NULL, 0, key, 4);
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if (ret)
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return ret;
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/* Tell the device we've read the remote. Not sure how necessary
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this is, but the Nebula SDK does it. */
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ret = digitv_ctrl_msg(d, USB_WRITE_REMOTE, 0, b, 4, NULL, 0);
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if (ret)
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return ret;
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/* if something is inside the buffer, simulate key press */
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if (key[0] != 0) {
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for (i = 0; i < d->props.rc.legacy.rc_map_size; i++) {
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entry = &d->props.rc.legacy.rc_map_table[i];
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if (rc5_custom(entry) == key[0] &&
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rc5_data(entry) == key[1]) {
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*event = entry->keycode;
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*state = REMOTE_KEY_PRESSED;
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return 0;
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}
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}
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deb_rc("key: %*ph\n", 4, key);
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}
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return 0;
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}
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/* DVB USB Driver stuff */
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static struct dvb_usb_device_properties digitv_properties;
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static int digitv_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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{
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struct dvb_usb_device *d;
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int ret = dvb_usb_device_init(intf, &digitv_properties, THIS_MODULE, &d,
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adapter_nr);
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if (ret == 0) {
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u8 b[4] = { 0 };
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if (d != NULL) { /* do that only when the firmware is loaded */
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b[0] = 1;
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digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0);
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b[0] = 0;
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digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0);
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}
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}
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return ret;
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}
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enum {
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ANCHOR_NEBULA_DIGITV,
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};
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static struct usb_device_id digitv_table[] = {
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DVB_USB_DEV(ANCHOR, ANCHOR_NEBULA_DIGITV),
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{ }
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};
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MODULE_DEVICE_TABLE (usb, digitv_table);
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static struct dvb_usb_device_properties digitv_properties = {
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.caps = DVB_USB_IS_AN_I2C_ADAPTER,
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.usb_ctrl = CYPRESS_FX2,
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.firmware = "dvb-usb-digitv-02.fw",
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.size_of_priv = sizeof(struct digitv_state),
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.num_adapters = 1,
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.adapter = {
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{
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.num_frontends = 1,
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.fe = {{
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.frontend_attach = digitv_frontend_attach,
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.tuner_attach = digitv_tuner_attach,
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/* parameter for the MPEG2-data transfer */
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.stream = {
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.type = USB_BULK,
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.count = 7,
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.endpoint = 0x02,
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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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},
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.identify_state = digitv_identify_state,
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.rc.legacy = {
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.rc_interval = 1000,
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.rc_map_table = rc_map_digitv_table,
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.rc_map_size = ARRAY_SIZE(rc_map_digitv_table),
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.rc_query = digitv_rc_query,
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},
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.i2c_algo = &digitv_i2c_algo,
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.generic_bulk_ctrl_endpoint = 0x01,
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.num_device_descs = 1,
|
||
|
|
.devices = {
|
||
|
|
{ "Nebula Electronics uDigiTV DVB-T USB2.0)",
|
||
|
|
{ &digitv_table[ANCHOR_NEBULA_DIGITV], NULL },
|
||
|
|
{ NULL },
|
||
|
|
},
|
||
|
|
{ NULL },
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct usb_driver digitv_driver = {
|
||
|
|
.name = "dvb_usb_digitv",
|
||
|
|
.probe = digitv_probe,
|
||
|
|
.disconnect = dvb_usb_device_exit,
|
||
|
|
.id_table = digitv_table,
|
||
|
|
};
|
||
|
|
|
||
|
|
module_usb_driver(digitv_driver);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
|
||
|
|
MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0");
|
||
|
|
MODULE_VERSION("1.0-alpha");
|
||
|
|
MODULE_LICENSE("GPL");
|