drivers/media/usb/dvb-usb/dibusb-common.c

   1 /* Common methods for dibusb-based-receivers.
   2  *
   3  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
   4  *
   5  *      This program is free software; you can redistribute it and/or modify it
   6  *      under the terms of the GNU General Public License as published by the Free
   7  *      Software Foundation, version 2.
   8  *
   9  * see Documentation/dvb/README.dvb-usb for more information
  10  */
  11
  12 #include "dibusb.h"
  13
  14 /* Max transfer size done by I2C transfer functions */
  15 #define MAX_XFER_SIZE  64
  16
  17 static int debug;
  18 module_param(debug, int, 0644);
  19 MODULE_PARM_DESC(debug, "set debugging level (1=info (|-able))." DVB_USB_DEBUG_STATUS);
  20 MODULE_LICENSE("GPL");
  21
  22 #define deb_info(args...) dprintk(debug,0x01,args)
  23
  24 /* common stuff used by the different dibusb modules */
  25 int dibusb_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
  26 {
  27         if (adap->priv != NULL) {
  28                 struct dibusb_state *st = adap->priv;
  29                 if (st->ops.fifo_ctrl != NULL)
  30                         if (st->ops.fifo_ctrl(adap->fe_adap[0].fe, onoff)) {
  31                                 err("error while controlling the fifo of the demod.");
  32                                 return -ENODEV;
  33                         }
  34         }
  35         return 0;
  36 }
  37 EXPORT_SYMBOL(dibusb_streaming_ctrl);
  38
  39 int dibusb_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid, int onoff)
  40 {
  41         if (adap->priv != NULL) {
  42                 struct dibusb_state *st = adap->priv;
  43                 if (st->ops.pid_ctrl != NULL)
  44                         st->ops.pid_ctrl(adap->fe_adap[0].fe,
  45                                          index, pid, onoff);
  46         }
  47         return 0;
  48 }
  49 EXPORT_SYMBOL(dibusb_pid_filter);
  50
  51 int dibusb_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
  52 {
  53         if (adap->priv != NULL) {
  54                 struct dibusb_state *st = adap->priv;
  55                 if (st->ops.pid_parse != NULL)
  56                         if (st->ops.pid_parse(adap->fe_adap[0].fe, onoff) < 0)
  57                                 err("could not handle pid_parser");
  58         }
  59         return 0;
  60 }
  61 EXPORT_SYMBOL(dibusb_pid_filter_ctrl);
  62
  63 int dibusb_power_ctrl(struct dvb_usb_device *d, int onoff)
  64 {
  65         u8 b[3];
  66         int ret;
  67         b[0] = DIBUSB_REQ_SET_IOCTL;
  68         b[1] = DIBUSB_IOCTL_CMD_POWER_MODE;
  69         b[2] = onoff ? DIBUSB_IOCTL_POWER_WAKEUP : DIBUSB_IOCTL_POWER_SLEEP;
  70         ret = dvb_usb_generic_write(d,b,3);
  71         msleep(10);
  72         return ret;
  73 }
  74 EXPORT_SYMBOL(dibusb_power_ctrl);
  75
  76 int dibusb2_0_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
  77 {
  78         u8 b[3] = { 0 };
  79         int ret;
  80
  81         if ((ret = dibusb_streaming_ctrl(adap,onoff)) < 0)
  82                 return ret;
  83
  84         if (onoff) {
  85                 b[0] = DIBUSB_REQ_SET_STREAMING_MODE;
  86                 b[1] = 0x00;
  87                 if ((ret = dvb_usb_generic_write(adap->dev,b,2)) < 0)
  88                         return ret;
  89         }
  90
  91         b[0] = DIBUSB_REQ_SET_IOCTL;
  92         b[1] = onoff ? DIBUSB_IOCTL_CMD_ENABLE_STREAM : DIBUSB_IOCTL_CMD_DISABLE_STREAM;
  93         return dvb_usb_generic_write(adap->dev,b,3);
  94 }
  95 EXPORT_SYMBOL(dibusb2_0_streaming_ctrl);
  96
  97 int dibusb2_0_power_ctrl(struct dvb_usb_device *d, int onoff)
  98 {
  99         if (onoff) {
 100                 u8 b[3] = { DIBUSB_REQ_SET_IOCTL, DIBUSB_IOCTL_CMD_POWER_MODE, DIBUSB_IOCTL_POWER_WAKEUP };
 101                 return dvb_usb_generic_write(d,b,3);
 102         } else
 103                 return 0;
 104 }
 105 EXPORT_SYMBOL(dibusb2_0_power_ctrl);
 106
 107 static int dibusb_i2c_msg(struct dvb_usb_device *d, u8 addr,
 108                           u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
 109 {
 110         u8 sndbuf[MAX_XFER_SIZE]; /* lead(1) devaddr,direction(1) addr(2) data(wlen) (len(2) (when reading)) */
 111         /* write only ? */
 112         int wo = (rbuf == NULL || rlen == 0),
 113                 len = 2 + wlen + (wo ? 0 : 2);
 114
 115         if (4 + wlen > sizeof(sndbuf)) {
 116                 warn("i2c wr: len=%d is too big!\n", wlen);
 117                 return -EOPNOTSUPP;
 118         }
 119
 120         sndbuf[0] = wo ? DIBUSB_REQ_I2C_WRITE : DIBUSB_REQ_I2C_READ;
 121         sndbuf[1] = (addr << 1) | (wo ? 0 : 1);
 122
 123         memcpy(&sndbuf[2],wbuf,wlen);
 124
 125         if (!wo) {
 126                 sndbuf[wlen+2] = (rlen >> 8) & 0xff;
 127                 sndbuf[wlen+3] = rlen & 0xff;
 128         }
 129
 130         return dvb_usb_generic_rw(d,sndbuf,len,rbuf,rlen,0);
 131 }
 132
 133 /*
 134  * I2C master xfer function
 135  */
 136 static int dibusb_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
 137 {
 138         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 139         int i;
 140
 141         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 142                 return -EAGAIN;
 143
 144         for (i = 0; i < num; i++) {
 145                 /* write/read request */
 146                 if (i+1 < num && (msg[i].flags & I2C_M_RD) == 0
 147                                           && (msg[i+1].flags & I2C_M_RD)) {
 148                         if (dibusb_i2c_msg(d, msg[i].addr, msg[i].buf,msg[i].len,
 149                                                 msg[i+1].buf,msg[i+1].len) < 0)
 150                                 break;
 151                         i++;
 152                 } else if ((msg[i].flags & I2C_M_RD) == 0) {
 153                         if (dibusb_i2c_msg(d, msg[i].addr, msg[i].buf,msg[i].len,NULL,0) < 0)
 154                                 break;
 155                 } else if (msg[i].addr != 0x50) {
 156                         /* 0x50 is the address of the eeprom - we need to protect it
 157                          * from dibusb's bad i2c implementation: reads without
 158                          * writing the offset before are forbidden */
 159                         if (dibusb_i2c_msg(d, msg[i].addr, NULL, 0, msg[i].buf, msg[i].len) < 0)
 160                                 break;
 161                 }
 162         }
 163
 164         mutex_unlock(&d->i2c_mutex);
 165         return i;
 166 }
 167
 168 static u32 dibusb_i2c_func(struct i2c_adapter *adapter)
 169 {
 170         return I2C_FUNC_I2C;
 171 }
 172
 173 struct i2c_algorithm dibusb_i2c_algo = {
 174         .master_xfer   = dibusb_i2c_xfer,
 175         .functionality = dibusb_i2c_func,
 176 };
 177 EXPORT_SYMBOL(dibusb_i2c_algo);
 178
 179 int dibusb_read_eeprom_byte(struct dvb_usb_device *d, u8 offs, u8 *val)
 180 {
 181         u8 wbuf[1] = { offs };
 182         return dibusb_i2c_msg(d, 0x50, wbuf, 1, val, 1);
 183 }
 184 EXPORT_SYMBOL(dibusb_read_eeprom_byte);
 185
 186 /*
 187  * common remote control stuff
 188  */
 189 struct rc_map_table rc_map_dibusb_table[] = {
 190         /* Key codes for the little Artec T1/Twinhan/HAMA/ remote. */
 191         { 0x0016, KEY_POWER },
 192         { 0x0010, KEY_MUTE },
 193         { 0x0003, KEY_1 },
 194         { 0x0001, KEY_2 },
 195         { 0x0006, KEY_3 },
 196         { 0x0009, KEY_4 },
 197         { 0x001d, KEY_5 },
 198         { 0x001f, KEY_6 },
 199         { 0x000d, KEY_7 },
 200         { 0x0019, KEY_8 },
 201         { 0x001b, KEY_9 },
 202         { 0x0015, KEY_0 },
 203         { 0x0005, KEY_CHANNELUP },
 204         { 0x0002, KEY_CHANNELDOWN },
 205         { 0x001e, KEY_VOLUMEUP },
 206         { 0x000a, KEY_VOLUMEDOWN },
 207         { 0x0011, KEY_RECORD },
 208         { 0x0017, KEY_FAVORITES }, /* Heart symbol - Channel list. */
 209         { 0x0014, KEY_PLAY },
 210         { 0x001a, KEY_STOP },
 211         { 0x0040, KEY_REWIND },
 212         { 0x0012, KEY_FASTFORWARD },
 213         { 0x000e, KEY_PREVIOUS }, /* Recall - Previous channel. */
 214         { 0x004c, KEY_PAUSE },
 215         { 0x004d, KEY_SCREEN }, /* Full screen mode. */
 216         { 0x0054, KEY_AUDIO }, /* MTS - Switch to secondary audio. */
 217         /* additional keys TwinHan VisionPlus, the Artec seemingly not have */
 218         { 0x000c, KEY_CANCEL }, /* Cancel */
 219         { 0x001c, KEY_EPG }, /* EPG */
 220         { 0x0000, KEY_TAB }, /* Tab */
 221         { 0x0048, KEY_INFO }, /* Preview */
 222         { 0x0004, KEY_LIST }, /* RecordList */
 223         { 0x000f, KEY_TEXT }, /* Teletext */
 224         /* Key codes for the KWorld/ADSTech/JetWay remote. */
 225         { 0x8612, KEY_POWER },
 226         { 0x860f, KEY_SELECT }, /* source */
 227         { 0x860c, KEY_UNKNOWN }, /* scan */
 228         { 0x860b, KEY_EPG },
 229         { 0x8610, KEY_MUTE },
 230         { 0x8601, KEY_1 },
 231         { 0x8602, KEY_2 },
 232         { 0x8603, KEY_3 },
 233         { 0x8604, KEY_4 },
 234         { 0x8605, KEY_5 },
 235         { 0x8606, KEY_6 },
 236         { 0x8607, KEY_7 },
 237         { 0x8608, KEY_8 },
 238         { 0x8609, KEY_9 },
 239         { 0x860a, KEY_0 },
 240         { 0x8618, KEY_ZOOM },
 241         { 0x861c, KEY_UNKNOWN }, /* preview */
 242         { 0x8613, KEY_UNKNOWN }, /* snap */
 243         { 0x8600, KEY_UNDO },
 244         { 0x861d, KEY_RECORD },
 245         { 0x860d, KEY_STOP },
 246         { 0x860e, KEY_PAUSE },
 247         { 0x8616, KEY_PLAY },
 248         { 0x8611, KEY_BACK },
 249         { 0x8619, KEY_FORWARD },
 250         { 0x8614, KEY_UNKNOWN }, /* pip */
 251         { 0x8615, KEY_ESC },
 252         { 0x861a, KEY_UP },
 253         { 0x861e, KEY_DOWN },
 254         { 0x861f, KEY_LEFT },
 255         { 0x861b, KEY_RIGHT },
 256
 257         /* Key codes for the DiBcom MOD3000 remote. */
 258         { 0x8000, KEY_MUTE },
 259         { 0x8001, KEY_TEXT },
 260         { 0x8002, KEY_HOME },
 261         { 0x8003, KEY_POWER },
 262
 263         { 0x8004, KEY_RED },
 264         { 0x8005, KEY_GREEN },
 265         { 0x8006, KEY_YELLOW },
 266         { 0x8007, KEY_BLUE },
 267
 268         { 0x8008, KEY_DVD },
 269         { 0x8009, KEY_AUDIO },
 270         { 0x800a, KEY_IMAGES },      /* Pictures */
 271         { 0x800b, KEY_VIDEO },
 272
 273         { 0x800c, KEY_BACK },
 274         { 0x800d, KEY_UP },
 275         { 0x800e, KEY_RADIO },
 276         { 0x800f, KEY_EPG },
 277
 278         { 0x8010, KEY_LEFT },
 279         { 0x8011, KEY_OK },
 280         { 0x8012, KEY_RIGHT },
 281         { 0x8013, KEY_UNKNOWN },    /* SAP */
 282
 283         { 0x8014, KEY_TV },
 284         { 0x8015, KEY_DOWN },
 285         { 0x8016, KEY_MENU },       /* DVD Menu */
 286         { 0x8017, KEY_LAST },
 287
 288         { 0x8018, KEY_RECORD },
 289         { 0x8019, KEY_STOP },
 290         { 0x801a, KEY_PAUSE },
 291         { 0x801b, KEY_PLAY },
 292
 293         { 0x801c, KEY_PREVIOUS },
 294         { 0x801d, KEY_REWIND },
 295         { 0x801e, KEY_FASTFORWARD },
 296         { 0x801f, KEY_NEXT},
 297
 298         { 0x8040, KEY_1 },
 299         { 0x8041, KEY_2 },
 300         { 0x8042, KEY_3 },
 301         { 0x8043, KEY_CHANNELUP },
 302
 303         { 0x8044, KEY_4 },
 304         { 0x8045, KEY_5 },
 305         { 0x8046, KEY_6 },
 306         { 0x8047, KEY_CHANNELDOWN },
 307
 308         { 0x8048, KEY_7 },
 309         { 0x8049, KEY_8 },
 310         { 0x804a, KEY_9 },
 311         { 0x804b, KEY_VOLUMEUP },
 312
 313         { 0x804c, KEY_CLEAR },
 314         { 0x804d, KEY_0 },
 315         { 0x804e, KEY_ENTER },
 316         { 0x804f, KEY_VOLUMEDOWN },
 317 };
 318 EXPORT_SYMBOL(rc_map_dibusb_table);
 319
 320 int dibusb_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 321 {
 322         u8 key[5],cmd = DIBUSB_REQ_POLL_REMOTE;
 323         dvb_usb_generic_rw(d,&cmd,1,key,5,0);
 324         dvb_usb_nec_rc_key_to_event(d,key,event,state);
 325         if (key[0] != 0)
 326                 deb_info("key: %*ph\n", 5, key);
 327         return 0;
 328 }
 329 EXPORT_SYMBOL(dibusb_rc_query);