drivers/media/dvb/dvb-usb/ttusb2.c

   1 /* DVB USB compliant linux driver for Technotrend DVB USB boxes and clones
   2  * (e.g. Pinnacle 400e DVB-S USB2.0).
   3  *
   4  * The Pinnacle 400e uses the same protocol as the Technotrend USB1.1 boxes.
   5  *
   6  * TDA8263 + TDA10086
   7  *
   8  * I2C addresses:
   9  * 0x08 - LNBP21PD   - LNB power supply
  10  * 0x0e - TDA10086   - Demodulator
  11  * 0x50 - FX2 eeprom
  12  * 0x60 - TDA8263    - Tuner
  13  * 0x78 ???
  14  *
  15  * Copyright (c) 2002 Holger Waechtler <holger@convergence.de>
  16  * Copyright (c) 2003 Felix Domke <tmbinc@elitedvb.net>
  17  * Copyright (C) 2005-6 Patrick Boettcher <pb@linuxtv.org>
  18  *
  19  *      This program is free software; you can redistribute it and/or modify it
  20  *      under the terms of the GNU General Public License as published by the Free
  21  *      Software Foundation, version 2.
  22  *
  23  * see Documentation/dvb/README.dvb-usb for more information
  24  */
  25 #define DVB_USB_LOG_PREFIX "ttusb2"
  26 #include "dvb-usb.h"
  27
  28 #include "ttusb2.h"
  29
  30 #include "tda826x.h"
  31 #include "tda10086.h"
  32 #include "lnbp21.h"
  33
  34 /* debug */
  35 static int dvb_usb_ttusb2_debug;
  36 #define deb_info(args...)   dprintk(dvb_usb_ttusb2_debug,0x01,args)
  37 module_param_named(debug,dvb_usb_ttusb2_debug, int, 0644);
  38 MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able))." DVB_USB_DEBUG_STATUS);
  39
  40 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  41
  42 struct ttusb2_state {
  43         u8 id;
  44 };
  45
  46 static int ttusb2_msg(struct dvb_usb_device *d, u8 cmd,
  47                 u8 *wbuf, int wlen, u8 *rbuf, int rlen)
  48 {
  49         struct ttusb2_state *st = d->priv;
  50         u8 s[wlen+4],r[64] = { 0 };
  51         int ret = 0;
  52
  53         memset(s,0,wlen+4);
  54
  55         s[0] = 0xaa;
  56         s[1] = ++st->id;
  57         s[2] = cmd;
  58         s[3] = wlen;
  59         memcpy(&s[4],wbuf,wlen);
  60
  61         ret = dvb_usb_generic_rw(d, s, wlen+4, r, 64, 0);
  62
  63         if (ret  != 0 ||
  64                 r[0] != 0x55 ||
  65                 r[1] != s[1] ||
  66                 r[2] != cmd ||
  67                 (rlen > 0 && r[3] != rlen)) {
  68                 warn("there might have been an error during control message transfer. (rlen = %d, was %d)",rlen,r[3]);
  69                 return -EIO;
  70         }
  71
  72         if (rlen > 0)
  73                 memcpy(rbuf, &r[4], rlen);
  74
  75         return 0;
  76 }
  77
  78 static int ttusb2_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
  79 {
  80         struct dvb_usb_device *d = i2c_get_adapdata(adap);
  81         static u8 obuf[60], ibuf[60];
  82         int i,read;
  83
  84         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
  85                 return -EAGAIN;
  86
  87         if (num > 2)
  88                 warn("more than 2 i2c messages at a time is not handled yet. TODO.");
  89
  90         for (i = 0; i < num; i++) {
  91                 read = i+1 < num && (msg[i+1].flags & I2C_M_RD);
  92
  93                 obuf[0] = (msg[i].addr << 1) | read;
  94                 obuf[1] = msg[i].len;
  95
  96                 /* read request */
  97                 if (read)
  98                         obuf[2] = msg[i+1].len;
  99                 else
 100                         obuf[2] = 0;
 101
 102                 memcpy(&obuf[3],msg[i].buf,msg[i].len);
 103
 104                 if (ttusb2_msg(d, CMD_I2C_XFER, obuf, msg[i].len+3, ibuf, obuf[2] + 3) < 0) {
 105                         err("i2c transfer failed.");
 106                         break;
 107                 }
 108
 109                 if (read) {
 110                         memcpy(msg[i+1].buf,&ibuf[3],msg[i+1].len);
 111                         i++;
 112                 }
 113         }
 114
 115         mutex_unlock(&d->i2c_mutex);
 116         return i;
 117 }
 118
 119 static u32 ttusb2_i2c_func(struct i2c_adapter *adapter)
 120 {
 121         return I2C_FUNC_I2C;
 122 }
 123
 124 static struct i2c_algorithm ttusb2_i2c_algo = {
 125         .master_xfer   = ttusb2_i2c_xfer,
 126         .functionality = ttusb2_i2c_func,
 127 };
 128
 129 /* Callbacks for DVB USB */
 130 static int ttusb2_identify_state (struct usb_device *udev, struct
 131                 dvb_usb_device_properties *props, struct dvb_usb_device_description **desc,
 132                 int *cold)
 133 {
 134         *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0;
 135         return 0;
 136 }
 137
 138 static int ttusb2_power_ctrl(struct dvb_usb_device *d, int onoff)
 139 {
 140         u8 b = onoff;
 141         ttusb2_msg(d, CMD_POWER, &b, 0, NULL, 0);
 142         return ttusb2_msg(d, CMD_POWER, &b, 1, NULL, 0);
 143 }
 144
 145
 146 static struct tda10086_config tda10086_config = {
 147         .demod_address = 0x0e,
 148         .invert = 0,
 149         .diseqc_tone = 1,
 150         .xtal_freq = TDA10086_XTAL_16M,
 151 };
 152
 153 static int ttusb2_frontend_attach(struct dvb_usb_adapter *adap)
 154 {
 155         if (usb_set_interface(adap->dev->udev,0,3) < 0)
 156                 err("set interface to alts=3 failed");
 157
 158         if ((adap->fe = dvb_attach(tda10086_attach, &tda10086_config, &adap->dev->i2c_adap)) == NULL) {
 159                 deb_info("TDA10086 attach failed\n");
 160                 return -ENODEV;
 161         }
 162
 163         return 0;
 164 }
 165
 166 static int ttusb2_tuner_attach(struct dvb_usb_adapter *adap)
 167 {
 168         if (dvb_attach(tda826x_attach, adap->fe, 0x60, &adap->dev->i2c_adap, 0) == NULL) {
 169                 deb_info("TDA8263 attach failed\n");
 170                 return -ENODEV;
 171         }
 172
 173         if (dvb_attach(lnbp21_attach, adap->fe, &adap->dev->i2c_adap, 0, 0) == NULL) {
 174                 deb_info("LNBP21 attach failed\n");
 175                 return -ENODEV;
 176         }
 177         return 0;
 178 }
 179
 180 /* DVB USB Driver stuff */
 181 static struct dvb_usb_device_properties ttusb2_properties;
 182 static struct dvb_usb_device_properties ttusb2_properties_s2400;
 183
 184 static int ttusb2_probe(struct usb_interface *intf,
 185                 const struct usb_device_id *id)
 186 {
 187         if (0 == dvb_usb_device_init(intf, &ttusb2_properties,
 188                                      THIS_MODULE, NULL, adapter_nr) ||
 189             0 == dvb_usb_device_init(intf, &ttusb2_properties_s2400,
 190                                      THIS_MODULE, NULL, adapter_nr))
 191                 return 0;
 192         return -ENODEV;
 193 }
 194
 195 static struct usb_device_id ttusb2_table [] = {
 196         { USB_DEVICE(USB_VID_PINNACLE, USB_PID_PCTV_400E) },
 197         { USB_DEVICE(USB_VID_PINNACLE, USB_PID_PCTV_450E) },
 198         { USB_DEVICE(USB_VID_TECHNOTREND,
 199                 USB_PID_TECHNOTREND_CONNECT_S2400) },
 200         {}              /* Terminating entry */
 201 };
 202 MODULE_DEVICE_TABLE (usb, ttusb2_table);
 203
 204 static struct dvb_usb_device_properties ttusb2_properties = {
 205         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
 206
 207         .usb_ctrl = CYPRESS_FX2,
 208         .firmware = "dvb-usb-pctv-400e-01.fw",
 209
 210         .size_of_priv = sizeof(struct ttusb2_state),
 211
 212         .num_adapters = 1,
 213         .adapter = {
 214                 {
 215                         .streaming_ctrl   = NULL, // ttusb2_streaming_ctrl,
 216
 217                         .frontend_attach  = ttusb2_frontend_attach,
 218                         .tuner_attach     = ttusb2_tuner_attach,
 219
 220                         /* parameter for the MPEG2-data transfer */
 221                         .stream = {
 222                                 .type = USB_ISOC,
 223                                 .count = 5,
 224                                 .endpoint = 0x02,
 225                                 .u = {
 226                                         .isoc = {
 227                                                 .framesperurb = 4,
 228                                                 .framesize = 940,
 229                                                 .interval = 1,
 230                                         }
 231                                 }
 232                         }
 233                 }
 234         },
 235
 236         .power_ctrl       = ttusb2_power_ctrl,
 237         .identify_state   = ttusb2_identify_state,
 238
 239         .i2c_algo         = &ttusb2_i2c_algo,
 240
 241         .generic_bulk_ctrl_endpoint = 0x01,
 242
 243         .num_device_descs = 2,
 244         .devices = {
 245                 {   "Pinnacle 400e DVB-S USB2.0",
 246                         { &ttusb2_table[0], NULL },
 247                         { NULL },
 248                 },
 249                 {   "Pinnacle 450e DVB-S USB2.0",
 250                         { &ttusb2_table[1], NULL },
 251                         { NULL },
 252                 },
 253         }
 254 };
 255
 256 static struct dvb_usb_device_properties ttusb2_properties_s2400 = {
 257         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
 258
 259         .usb_ctrl = CYPRESS_FX2,
 260         .firmware = "dvb-usb-tt-s2400-01.fw",
 261
 262         .size_of_priv = sizeof(struct ttusb2_state),
 263
 264         .num_adapters = 1,
 265         .adapter = {
 266                 {
 267                         .streaming_ctrl   = NULL,
 268
 269                         .frontend_attach  = ttusb2_frontend_attach,
 270                         .tuner_attach     = ttusb2_tuner_attach,
 271
 272                         /* parameter for the MPEG2-data transfer */
 273                         .stream = {
 274                                 .type = USB_ISOC,
 275                                 .count = 5,
 276                                 .endpoint = 0x02,
 277                                 .u = {
 278                                         .isoc = {
 279                                                 .framesperurb = 4,
 280                                                 .framesize = 940,
 281                                                 .interval = 1,
 282                                         }
 283                                 }
 284                         }
 285                 }
 286         },
 287
 288         .power_ctrl       = ttusb2_power_ctrl,
 289         .identify_state   = ttusb2_identify_state,
 290
 291         .i2c_algo         = &ttusb2_i2c_algo,
 292
 293         .generic_bulk_ctrl_endpoint = 0x01,
 294
 295         .num_device_descs = 1,
 296         .devices = {
 297                 {   "Technotrend TT-connect S-2400",
 298                         { &ttusb2_table[2], NULL },
 299                         { NULL },
 300                 },
 301         }
 302 };
 303
 304 static struct usb_driver ttusb2_driver = {
 305         .name           = "dvb_usb_ttusb2",
 306         .probe          = ttusb2_probe,
 307         .disconnect = dvb_usb_device_exit,
 308         .id_table       = ttusb2_table,
 309 };
 310
 311 /* module stuff */
 312 static int __init ttusb2_module_init(void)
 313 {
 314         int result;
 315         if ((result = usb_register(&ttusb2_driver))) {
 316                 err("usb_register failed. Error number %d",result);
 317                 return result;
 318         }
 319
 320         return 0;
 321 }
 322
 323 static void __exit ttusb2_module_exit(void)
 324 {
 325         /* deregister this driver from the USB subsystem */
 326         usb_deregister(&ttusb2_driver);
 327 }
 328
 329 module_init (ttusb2_module_init);
 330 module_exit (ttusb2_module_exit);
 331
 332 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
 333 MODULE_DESCRIPTION("Driver for Pinnacle PCTV 400e DVB-S USB2.0");
 334 MODULE_VERSION("1.0");
 335 MODULE_LICENSE("GPL");