kernel/drivers/media/usb/dvb-usb/gp8psk.c

   1 /* DVB USB compliant Linux driver for the
   2  *  - GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module
   3  *
   4  * Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com)
   5  * Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com)
   6  *
   7  * Thanks to GENPIX for the sample code used to implement this module.
   8  *
   9  * This module is based off the vp7045 and vp702x modules
  10  *
  11  *      This program is free software; you can redistribute it and/or modify it
  12  *      under the terms of the GNU General Public License as published by the Free
  13  *      Software Foundation, version 2.
  14  *
  15  * see Documentation/dvb/README.dvb-usb for more information
  16  */
  17 #include "gp8psk.h"
  18
  19 /* debug */
  20 static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw";
  21 int dvb_usb_gp8psk_debug;
  22 module_param_named(debug,dvb_usb_gp8psk_debug, int, 0644);
  23 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
  24
  25 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  26
  27 static int gp8psk_get_fw_version(struct dvb_usb_device *d, u8 *fw_vers)
  28 {
  29         return (gp8psk_usb_in_op(d, GET_FW_VERS, 0, 0, fw_vers, 6));
  30 }
  31
  32 static int gp8psk_get_fpga_version(struct dvb_usb_device *d, u8 *fpga_vers)
  33 {
  34         return (gp8psk_usb_in_op(d, GET_FPGA_VERS, 0, 0, fpga_vers, 1));
  35 }
  36
  37 static void gp8psk_info(struct dvb_usb_device *d)
  38 {
  39         u8 fpga_vers, fw_vers[6];
  40
  41         if (!gp8psk_get_fw_version(d, fw_vers))
  42                 info("FW Version = %i.%02i.%i (0x%x)  Build %4i/%02i/%02i",
  43                 fw_vers[2], fw_vers[1], fw_vers[0], GP8PSK_FW_VERS(fw_vers),
  44                 2000 + fw_vers[5], fw_vers[4], fw_vers[3]);
  45         else
  46                 info("failed to get FW version");
  47
  48         if (!gp8psk_get_fpga_version(d, &fpga_vers))
  49                 info("FPGA Version = %i", fpga_vers);
  50         else
  51                 info("failed to get FPGA version");
  52 }
  53
  54 int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen)
  55 {
  56         int ret = 0,try = 0;
  57
  58         if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
  59                 return ret;
  60
  61         while (ret >= 0 && ret != blen && try < 3) {
  62                 ret = usb_control_msg(d->udev,
  63                         usb_rcvctrlpipe(d->udev,0),
  64                         req,
  65                         USB_TYPE_VENDOR | USB_DIR_IN,
  66                         value,index,b,blen,
  67                         2000);
  68                 deb_info("reading number %d (ret: %d)\n",try,ret);
  69                 try++;
  70         }
  71
  72         if (ret < 0 || ret != blen) {
  73                 warn("usb in %d operation failed.", req);
  74                 ret = -EIO;
  75         } else
  76                 ret = 0;
  77
  78         deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
  79         debug_dump(b,blen,deb_xfer);
  80
  81         mutex_unlock(&d->usb_mutex);
  82
  83         return ret;
  84 }
  85
  86 int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
  87                              u16 index, u8 *b, int blen)
  88 {
  89         int ret;
  90
  91         deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
  92         debug_dump(b,blen,deb_xfer);
  93
  94         if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
  95                 return ret;
  96
  97         if (usb_control_msg(d->udev,
  98                         usb_sndctrlpipe(d->udev,0),
  99                         req,
 100                         USB_TYPE_VENDOR | USB_DIR_OUT,
 101                         value,index,b,blen,
 102                         2000) != blen) {
 103                 warn("usb out operation failed.");
 104                 ret = -EIO;
 105         } else
 106                 ret = 0;
 107         mutex_unlock(&d->usb_mutex);
 108
 109         return ret;
 110 }
 111
 112 static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d)
 113 {
 114         int ret;
 115         const struct firmware *fw = NULL;
 116         const u8 *ptr;
 117         u8 *buf;
 118         if ((ret = request_firmware(&fw, bcm4500_firmware,
 119                                         &d->udev->dev)) != 0) {
 120                 err("did not find the bcm4500 firmware file. (%s) "
 121                         "Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)",
 122                         bcm4500_firmware,ret);
 123                 return ret;
 124         }
 125
 126         ret = -EINVAL;
 127
 128         if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0))
 129                 goto out_rel_fw;
 130
 131         info("downloading bcm4500 firmware from file '%s'",bcm4500_firmware);
 132
 133         ptr = fw->data;
 134         buf = kmalloc(64, GFP_KERNEL | GFP_DMA);
 135         if (!buf) {
 136                 ret = -ENOMEM;
 137                 goto out_rel_fw;
 138         }
 139
 140         while (ptr[0] != 0xff) {
 141                 u16 buflen = ptr[0] + 4;
 142                 if (ptr + buflen >= fw->data + fw->size) {
 143                         err("failed to load bcm4500 firmware.");
 144                         goto out_free;
 145                 }
 146                 memcpy(buf, ptr, buflen);
 147                 if (dvb_usb_generic_write(d, buf, buflen)) {
 148                         err("failed to load bcm4500 firmware.");
 149                         goto out_free;
 150                 }
 151                 ptr += buflen;
 152         }
 153
 154         ret = 0;
 155
 156 out_free:
 157         kfree(buf);
 158 out_rel_fw:
 159         release_firmware(fw);
 160
 161         return ret;
 162 }
 163
 164 static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff)
 165 {
 166         u8 status, buf;
 167         int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
 168
 169         if (onoff) {
 170                 gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
 171                 if (! (status & bm8pskStarted)) {  /* started */
 172                         if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
 173                                 gp8psk_usb_out_op(d, CW3K_INIT, 1, 0, NULL, 0);
 174                         if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
 175                                 return -EINVAL;
 176                         gp8psk_info(d);
 177                 }
 178
 179                 if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
 180                         if (! (status & bm8pskFW_Loaded)) /* BCM4500 firmware loaded */
 181                                 if(gp8psk_load_bcm4500fw(d))
 182                                         return -EINVAL;
 183
 184                 if (! (status & bmIntersilOn)) /* LNB Power */
 185                         if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0,
 186                                         &buf, 1))
 187                                 return -EINVAL;
 188
 189                 /* Set DVB mode to 1 */
 190                 if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
 191                         if (gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0))
 192                                 return -EINVAL;
 193                 /* Abort possible TS (if previous tune crashed) */
 194                 if (gp8psk_usb_out_op(d, ARM_TRANSFER, 0, 0, NULL, 0))
 195                         return -EINVAL;
 196         } else {
 197                 /* Turn off LNB power */
 198                 if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1))
 199                         return -EINVAL;
 200                 /* Turn off 8psk power */
 201                 if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
 202                         return -EINVAL;
 203                 if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
 204                         gp8psk_usb_out_op(d, CW3K_INIT, 0, 0, NULL, 0);
 205         }
 206         return 0;
 207 }
 208
 209 int gp8psk_bcm4500_reload(struct dvb_usb_device *d)
 210 {
 211         u8 buf;
 212         int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
 213         /* Turn off 8psk power */
 214         if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
 215                 return -EINVAL;
 216         /* Turn On 8psk power */
 217         if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
 218                 return -EINVAL;
 219         /* load BCM4500 firmware */
 220         if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
 221                 if (gp8psk_load_bcm4500fw(d))
 222                         return -EINVAL;
 223         return 0;
 224 }
 225
 226 static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 227 {
 228         return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0);
 229 }
 230
 231 static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap)
 232 {
 233         adap->fe_adap[0].fe = gp8psk_fe_attach(adap->dev);
 234         return 0;
 235 }
 236
 237 static struct dvb_usb_device_properties gp8psk_properties;
 238
 239 static int gp8psk_usb_probe(struct usb_interface *intf,
 240                 const struct usb_device_id *id)
 241 {
 242         int ret;
 243         struct usb_device *udev = interface_to_usbdev(intf);
 244         ret = dvb_usb_device_init(intf, &gp8psk_properties,
 245                                   THIS_MODULE, NULL, adapter_nr);
 246         if (ret == 0) {
 247                 info("found Genpix USB device pID = %x (hex)",
 248                         le16_to_cpu(udev->descriptor.idProduct));
 249         }
 250         return ret;
 251 }
 252
 253 static struct usb_device_id gp8psk_usb_table [] = {
 254             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_COLD) },
 255             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_WARM) },
 256             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_2) },
 257             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_1) },
 258             { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_2) },
 259 /*          { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_CW3K) }, */
 260             { 0 },
 261 };
 262 MODULE_DEVICE_TABLE(usb, gp8psk_usb_table);
 263
 264 static struct dvb_usb_device_properties gp8psk_properties = {
 265         .usb_ctrl = CYPRESS_FX2,
 266         .firmware = "dvb-usb-gp8psk-01.fw",
 267
 268         .num_adapters = 1,
 269         .adapter = {
 270                 {
 271                 .num_frontends = 1,
 272                 .fe = {{
 273                         .streaming_ctrl   = gp8psk_streaming_ctrl,
 274                         .frontend_attach  = gp8psk_frontend_attach,
 275                         /* parameter for the MPEG2-data transfer */
 276                         .stream = {
 277                                 .type = USB_BULK,
 278                                 .count = 7,
 279                                 .endpoint = 0x82,
 280                                 .u = {
 281                                         .bulk = {
 282                                                 .buffersize = 8192,
 283                                         }
 284                                 }
 285                         },
 286                 }},
 287                 }
 288         },
 289         .power_ctrl       = gp8psk_power_ctrl,
 290
 291         .generic_bulk_ctrl_endpoint = 0x01,
 292
 293         .num_device_descs = 4,
 294         .devices = {
 295                 { .name = "Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver",
 296                   .cold_ids = { &gp8psk_usb_table[0], NULL },
 297                   .warm_ids = { &gp8psk_usb_table[1], NULL },
 298                 },
 299                 { .name = "Genpix 8PSK-to-USB2 Rev.2 DVB-S receiver",
 300                   .cold_ids = { NULL },
 301                   .warm_ids = { &gp8psk_usb_table[2], NULL },
 302                 },
 303                 { .name = "Genpix SkyWalker-1 DVB-S receiver",
 304                   .cold_ids = { NULL },
 305                   .warm_ids = { &gp8psk_usb_table[3], NULL },
 306                 },
 307                 { .name = "Genpix SkyWalker-2 DVB-S receiver",
 308                   .cold_ids = { NULL },
 309                   .warm_ids = { &gp8psk_usb_table[4], NULL },
 310                 },
 311                 { NULL },
 312         }
 313 };
 314
 315 /* usb specific object needed to register this driver with the usb subsystem */
 316 static struct usb_driver gp8psk_usb_driver = {
 317         .name           = "dvb_usb_gp8psk",
 318         .probe          = gp8psk_usb_probe,
 319         .disconnect = dvb_usb_device_exit,
 320         .id_table       = gp8psk_usb_table,
 321 };
 322
 323 module_usb_driver(gp8psk_usb_driver);
 324
 325 MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>");
 326 MODULE_DESCRIPTION("Driver for Genpix DVB-S");
 327 MODULE_VERSION("1.1");
 328 MODULE_LICENSE("GPL");