drivers/media/usb/dvb-usb/vp7045.c

   1 /* DVB USB compliant Linux driver for the
   2  *  - TwinhanDTV Alpha/MagicBoxII USB2.0 DVB-T receiver
   3  *  - DigitalNow TinyUSB2 DVB-t receiver
   4  *
   5  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
   6  *
   7  * Thanks to Twinhan who kindly provided hardware and information.
   8  *
   9  *      This program is free software; you can redistribute it and/or modify it
  10  *      under the terms of the GNU General Public License as published by the Free
  11  *      Software Foundation, version 2.
  12  *
  13  * see Documentation/media/dvb-drivers/dvb-usb.rst for more information
  14  */
  15 #include "vp7045.h"
  16
  17 /* debug */
  18 static int dvb_usb_vp7045_debug;
  19 module_param_named(debug,dvb_usb_vp7045_debug, int, 0644);
  20 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
  21
  22 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  23
  24 #define deb_info(args...) dprintk(dvb_usb_vp7045_debug,0x01,args)
  25 #define deb_xfer(args...) dprintk(dvb_usb_vp7045_debug,0x02,args)
  26 #define deb_rc(args...)   dprintk(dvb_usb_vp7045_debug,0x04,args)
  27
  28 int vp7045_usb_op(struct dvb_usb_device *d, u8 cmd, u8 *out, int outlen, u8 *in, int inlen, int msec)
  29 {
  30         int ret = 0;
  31         u8 *buf = d->priv;
  32
  33         buf[0] = cmd;
  34
  35         if (outlen > 19)
  36                 outlen = 19;
  37
  38         if (inlen > 11)
  39                 inlen = 11;
  40
  41         ret = mutex_lock_interruptible(&d->usb_mutex);
  42         if (ret)
  43                 return ret;
  44
  45         if (out != NULL && outlen > 0)
  46                 memcpy(&buf[1], out, outlen);
  47
  48         deb_xfer("out buffer: ");
  49         debug_dump(buf, outlen+1, deb_xfer);
  50
  51
  52         if (usb_control_msg(d->udev,
  53                         usb_sndctrlpipe(d->udev,0),
  54                         TH_COMMAND_OUT, USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0,
  55                         buf, 20, 2000) != 20) {
  56                 err("USB control message 'out' went wrong.");
  57                 ret = -EIO;
  58                 goto unlock;
  59         }
  60
  61         msleep(msec);
  62
  63         if (usb_control_msg(d->udev,
  64                         usb_rcvctrlpipe(d->udev,0),
  65                         TH_COMMAND_IN, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
  66                         buf, 12, 2000) != 12) {
  67                 err("USB control message 'in' went wrong.");
  68                 ret = -EIO;
  69                 goto unlock;
  70         }
  71
  72         deb_xfer("in buffer: ");
  73         debug_dump(buf, 12, deb_xfer);
  74
  75         if (in != NULL && inlen > 0)
  76                 memcpy(in, &buf[1], inlen);
  77
  78 unlock:
  79         mutex_unlock(&d->usb_mutex);
  80
  81         return ret;
  82 }
  83
  84 u8 vp7045_read_reg(struct dvb_usb_device *d, u8 reg)
  85 {
  86         u8 obuf[2] = { 0 },v;
  87         obuf[1] = reg;
  88
  89         vp7045_usb_op(d,TUNER_REG_READ,obuf,2,&v,1,30);
  90
  91         return v;
  92 }
  93
  94 static int vp7045_power_ctrl(struct dvb_usb_device *d, int onoff)
  95 {
  96         u8 v = onoff;
  97         return vp7045_usb_op(d,SET_TUNER_POWER,&v,1,NULL,0,150);
  98 }
  99
 100 static int vp7045_rc_query(struct dvb_usb_device *d)
 101 {
 102         int ret;
 103         u8 key;
 104
 105         ret = vp7045_usb_op(d, RC_VAL_READ, NULL, 0, &key, 1, 20);
 106         if (ret)
 107                 return ret;
 108
 109         deb_rc("remote query key: %x\n", key);
 110
 111         if (key != 0x44) {
 112                 /*
 113                  * The 8 bit address isn't available, but since the remote uses
 114                  * address 0 we'll use that. nec repeats are ignored too, even
 115                  * though the remote sends them.
 116                  */
 117                 rc_keydown(d->rc_dev, RC_PROTO_NEC, RC_SCANCODE_NEC(0, key), 0);
 118         }
 119
 120         return 0;
 121 }
 122
 123 static int vp7045_read_eeprom(struct dvb_usb_device *d,u8 *buf, int len, int offset)
 124 {
 125         int i, ret;
 126         u8 v, br[2];
 127         for (i=0; i < len; i++) {
 128                 v = offset + i;
 129                 ret = vp7045_usb_op(d, GET_EE_VALUE, &v, 1, br, 2, 5);
 130                 if (ret)
 131                         return ret;
 132
 133                 buf[i] = br[1];
 134         }
 135         deb_info("VP7045 EEPROM read (offs: %d, len: %d) : ", offset, i);
 136         debug_dump(buf, i, deb_info);
 137         return 0;
 138 }
 139
 140 static int vp7045_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
 141 {
 142         return vp7045_read_eeprom(d,mac, 6, MAC_0_ADDR);
 143 }
 144
 145 static int vp7045_frontend_attach(struct dvb_usb_adapter *adap)
 146 {
 147         u8 buf[255] = { 0 };
 148
 149         vp7045_usb_op(adap->dev,VENDOR_STRING_READ,NULL,0,buf,20,0);
 150         buf[10] = '\0';
 151         deb_info("firmware says: %s ",buf);
 152
 153         vp7045_usb_op(adap->dev,PRODUCT_STRING_READ,NULL,0,buf,20,0);
 154         buf[10] = '\0';
 155         deb_info("%s ",buf);
 156
 157         vp7045_usb_op(adap->dev,FW_VERSION_READ,NULL,0,buf,20,0);
 158         buf[10] = '\0';
 159         deb_info("v%s\n",buf);
 160
 161 /*      Dump the EEPROM */
 162 /*      vp7045_read_eeprom(d,buf, 255, FX2_ID_ADDR); */
 163
 164         adap->fe_adap[0].fe = vp7045_fe_attach(adap->dev);
 165
 166         return 0;
 167 }
 168
 169 static struct dvb_usb_device_properties vp7045_properties;
 170
 171 static int vp7045_usb_probe(struct usb_interface *intf,
 172                 const struct usb_device_id *id)
 173 {
 174         return dvb_usb_device_init(intf, &vp7045_properties,
 175                                    THIS_MODULE, NULL, adapter_nr);
 176 }
 177
 178 static struct usb_device_id vp7045_usb_table [] = {
 179             { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7045_COLD) },
 180             { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7045_WARM) },
 181             { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_DNTV_TINYUSB2_COLD) },
 182             { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_DNTV_TINYUSB2_WARM) },
 183             { 0 },
 184 };
 185 MODULE_DEVICE_TABLE(usb, vp7045_usb_table);
 186
 187 static struct dvb_usb_device_properties vp7045_properties = {
 188         .usb_ctrl = CYPRESS_FX2,
 189         .firmware = "/*(DEBLOBBED)*/",
 190         .size_of_priv = 20,
 191
 192         .num_adapters = 1,
 193         .adapter = {
 194                 {
 195                 .num_frontends = 1,
 196                 .fe = {{
 197                         .frontend_attach  = vp7045_frontend_attach,
 198                         /* parameter for the MPEG2-data transfer */
 199                         .stream = {
 200                                 .type = USB_BULK,
 201                                 .count = 7,
 202                                 .endpoint = 0x02,
 203                                 .u = {
 204                                         .bulk = {
 205                                                 .buffersize = 4096,
 206                                         }
 207                                 }
 208                         },
 209                 }},
 210                 }
 211         },
 212         .power_ctrl       = vp7045_power_ctrl,
 213         .read_mac_address = vp7045_read_mac_addr,
 214
 215         .rc.core = {
 216                 .rc_interval    = 400,
 217                 .rc_codes       = RC_MAP_TWINHAN_VP1027_DVBS,
 218                 .module_name    = KBUILD_MODNAME,
 219                 .rc_query       = vp7045_rc_query,
 220                 .allowed_protos = RC_PROTO_BIT_NEC,
 221                 .scancode_mask  = 0xff,
 222         },
 223
 224         .num_device_descs = 2,
 225         .devices = {
 226                 { .name = "Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)",
 227                   .cold_ids = { &vp7045_usb_table[0], NULL },
 228                   .warm_ids = { &vp7045_usb_table[1], NULL },
 229                 },
 230                 { .name = "DigitalNow TinyUSB 2 DVB-t Receiver",
 231                   .cold_ids = { &vp7045_usb_table[2], NULL },
 232                   .warm_ids = { &vp7045_usb_table[3], NULL },
 233                 },
 234                 { NULL },
 235         }
 236 };
 237
 238 /* usb specific object needed to register this driver with the usb subsystem */
 239 static struct usb_driver vp7045_usb_driver = {
 240         .name           = "dvb_usb_vp7045",
 241         .probe          = vp7045_usb_probe,
 242         .disconnect     = dvb_usb_device_exit,
 243         .id_table       = vp7045_usb_table,
 244 };
 245
 246 module_usb_driver(vp7045_usb_driver);
 247
 248 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
 249 MODULE_DESCRIPTION("Driver for Twinhan MagicBox/Alpha and DNTV tinyUSB2 DVB-T USB2.0");
 250 MODULE_VERSION("1.0");
 251 MODULE_LICENSE("GPL");