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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /* DVB USB compliant Linux driver for the
   3  *  - TwinhanDTV Alpha/MagicBoxII USB2.0 DVB-T receiver
   4  *  - DigitalNow TinyUSB2 DVB-t receiver
   5  *
   6  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
   7  *
   8  * Thanks to Twinhan who kindly provided hardware and information.
   9  *
  10  * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
  11  */
  12 #include "vp7045.h"
  13
  14 /* debug */
  15 static int dvb_usb_vp7045_debug;
  16 module_param_named(debug,dvb_usb_vp7045_debug, int, 0644);
  17 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
  18
  19 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  20
  21 #define deb_info(args...) dprintk(dvb_usb_vp7045_debug,0x01,args)
  22 #define deb_xfer(args...) dprintk(dvb_usb_vp7045_debug,0x02,args)
  23 #define deb_rc(args...)   dprintk(dvb_usb_vp7045_debug,0x04,args)
  24
  25 int vp7045_usb_op(struct dvb_usb_device *d, u8 cmd, u8 *out, int outlen, u8 *in, int inlen, int msec)
  26 {
  27         int ret = 0;
  28         u8 *buf = d->priv;
  29
  30         buf[0] = cmd;
  31
  32         if (outlen > 19)
  33                 outlen = 19;
  34
  35         if (inlen > 11)
  36                 inlen = 11;
  37
  38         ret = mutex_lock_interruptible(&d->usb_mutex);
  39         if (ret)
  40                 return ret;
  41
  42         if (out != NULL && outlen > 0)
  43                 memcpy(&buf[1], out, outlen);
  44
  45         deb_xfer("out buffer: ");
  46         debug_dump(buf, outlen+1, deb_xfer);
  47
  48
  49         if (usb_control_msg(d->udev,
  50                         usb_sndctrlpipe(d->udev,0),
  51                         TH_COMMAND_OUT, USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0,
  52                         buf, 20, 2000) != 20) {
  53                 err("USB control message 'out' went wrong.");
  54                 ret = -EIO;
  55                 goto unlock;
  56         }
  57
  58         msleep(msec);
  59
  60         if (usb_control_msg(d->udev,
  61                         usb_rcvctrlpipe(d->udev,0),
  62                         TH_COMMAND_IN, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
  63                         buf, 12, 2000) != 12) {
  64                 err("USB control message 'in' went wrong.");
  65                 ret = -EIO;
  66                 goto unlock;
  67         }
  68
  69         deb_xfer("in buffer: ");
  70         debug_dump(buf, 12, deb_xfer);
  71
  72         if (in != NULL && inlen > 0)
  73                 memcpy(in, &buf[1], inlen);
  74
  75 unlock:
  76         mutex_unlock(&d->usb_mutex);
  77
  78         return ret;
  79 }
  80
  81 u8 vp7045_read_reg(struct dvb_usb_device *d, u8 reg)
  82 {
  83         u8 obuf[2] = { 0 },v;
  84         obuf[1] = reg;
  85
  86         vp7045_usb_op(d,TUNER_REG_READ,obuf,2,&v,1,30);
  87
  88         return v;
  89 }
  90
  91 static int vp7045_power_ctrl(struct dvb_usb_device *d, int onoff)
  92 {
  93         u8 v = onoff;
  94         return vp7045_usb_op(d,SET_TUNER_POWER,&v,1,NULL,0,150);
  95 }
  96
  97 static int vp7045_rc_query(struct dvb_usb_device *d)
  98 {
  99         int ret;
 100         u8 key;
 101
 102         ret = vp7045_usb_op(d, RC_VAL_READ, NULL, 0, &key, 1, 20);
 103         if (ret)
 104                 return ret;
 105
 106         deb_rc("remote query key: %x\n", key);
 107
 108         if (key != 0x44) {
 109                 /*
 110                  * The 8 bit address isn't available, but since the remote uses
 111                  * address 0 we'll use that. nec repeats are ignored too, even
 112                  * though the remote sends them.
 113                  */
 114                 rc_keydown(d->rc_dev, RC_PROTO_NEC, RC_SCANCODE_NEC(0, key), 0);
 115         }
 116
 117         return 0;
 118 }
 119
 120 static int vp7045_read_eeprom(struct dvb_usb_device *d,u8 *buf, int len, int offset)
 121 {
 122         int i, ret;
 123         u8 v, br[2];
 124         for (i=0; i < len; i++) {
 125                 v = offset + i;
 126                 ret = vp7045_usb_op(d, GET_EE_VALUE, &v, 1, br, 2, 5);
 127                 if (ret)
 128                         return ret;
 129
 130                 buf[i] = br[1];
 131         }
 132         deb_info("VP7045 EEPROM read (offs: %d, len: %d) : ", offset, i);
 133         debug_dump(buf, i, deb_info);
 134         return 0;
 135 }
 136
 137 static int vp7045_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
 138 {
 139         return vp7045_read_eeprom(d,mac, 6, MAC_0_ADDR);
 140 }
 141
 142 static int vp7045_frontend_attach(struct dvb_usb_adapter *adap)
 143 {
 144         u8 buf[255] = { 0 };
 145
 146         vp7045_usb_op(adap->dev,VENDOR_STRING_READ,NULL,0,buf,20,0);
 147         buf[10] = '\0';
 148         deb_info("firmware says: %s ",buf);
 149
 150         vp7045_usb_op(adap->dev,PRODUCT_STRING_READ,NULL,0,buf,20,0);
 151         buf[10] = '\0';
 152         deb_info("%s ",buf);
 153
 154         vp7045_usb_op(adap->dev,FW_VERSION_READ,NULL,0,buf,20,0);
 155         buf[10] = '\0';
 156         deb_info("v%s\n",buf);
 157
 158 /*      Dump the EEPROM */
 159 /*      vp7045_read_eeprom(d,buf, 255, FX2_ID_ADDR); */
 160
 161         adap->fe_adap[0].fe = vp7045_fe_attach(adap->dev);
 162
 163         return 0;
 164 }
 165
 166 static struct dvb_usb_device_properties vp7045_properties;
 167
 168 static int vp7045_usb_probe(struct usb_interface *intf,
 169                 const struct usb_device_id *id)
 170 {
 171         return dvb_usb_device_init(intf, &vp7045_properties,
 172                                    THIS_MODULE, NULL, adapter_nr);
 173 }
 174
 175 enum {
 176         VISIONPLUS_VP7045_COLD,
 177         VISIONPLUS_VP7045_WARM,
 178         VISIONPLUS_TINYUSB2_COLD,
 179         VISIONPLUS_TINYUSB2_WARM,
 180 };
 181
 182 static struct usb_device_id vp7045_usb_table[] = {
 183         DVB_USB_DEV(VISIONPLUS, VISIONPLUS_VP7045_COLD),
 184         DVB_USB_DEV(VISIONPLUS, VISIONPLUS_VP7045_WARM),
 185         DVB_USB_DEV(VISIONPLUS, VISIONPLUS_TINYUSB2_COLD),
 186         DVB_USB_DEV(VISIONPLUS, VISIONPLUS_TINYUSB2_WARM),
 187         { }
 188 };
 189
 190 MODULE_DEVICE_TABLE(usb, vp7045_usb_table);
 191
 192 static struct dvb_usb_device_properties vp7045_properties = {
 193         .usb_ctrl = CYPRESS_FX2,
 194         .firmware = "/*(DEBLOBBED)*/",
 195         .size_of_priv = 20,
 196
 197         .num_adapters = 1,
 198         .adapter = {
 199                 {
 200                 .num_frontends = 1,
 201                 .fe = {{
 202                         .frontend_attach  = vp7045_frontend_attach,
 203                         /* parameter for the MPEG2-data transfer */
 204                         .stream = {
 205                                 .type = USB_BULK,
 206                                 .count = 7,
 207                                 .endpoint = 0x02,
 208                                 .u = {
 209                                         .bulk = {
 210                                                 .buffersize = 4096,
 211                                         }
 212                                 }
 213                         },
 214                 }},
 215                 }
 216         },
 217         .power_ctrl       = vp7045_power_ctrl,
 218         .read_mac_address = vp7045_read_mac_addr,
 219
 220         .rc.core = {
 221                 .rc_interval    = 400,
 222                 .rc_codes       = RC_MAP_TWINHAN_VP1027_DVBS,
 223                 .module_name    = KBUILD_MODNAME,
 224                 .rc_query       = vp7045_rc_query,
 225                 .allowed_protos = RC_PROTO_BIT_NEC,
 226                 .scancode_mask  = 0xff,
 227         },
 228
 229         .num_device_descs = 2,
 230         .devices = {
 231                 { .name = "Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II)",
 232                   .cold_ids = { &vp7045_usb_table[VISIONPLUS_VP7045_COLD], NULL },
 233                   .warm_ids = { &vp7045_usb_table[VISIONPLUS_VP7045_WARM], NULL },
 234                 },
 235                 { .name = "DigitalNow TinyUSB 2 DVB-t Receiver",
 236                   .cold_ids = { &vp7045_usb_table[VISIONPLUS_TINYUSB2_COLD], NULL },
 237                   .warm_ids = { &vp7045_usb_table[VISIONPLUS_TINYUSB2_WARM], NULL },
 238                 },
 239                 { NULL },
 240         }
 241 };
 242
 243 /* usb specific object needed to register this driver with the usb subsystem */
 244 static struct usb_driver vp7045_usb_driver = {
 245         .name           = "dvb_usb_vp7045",
 246         .probe          = vp7045_usb_probe,
 247         .disconnect     = dvb_usb_device_exit,
 248         .id_table       = vp7045_usb_table,
 249 };
 250
 251 module_usb_driver(vp7045_usb_driver);
 252
 253 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
 254 MODULE_DESCRIPTION("Driver for Twinhan MagicBox/Alpha and DNTV tinyUSB2 DVB-T USB2.0");
 255 MODULE_VERSION("1.0");
 256 MODULE_LICENSE("GPL");