1 // SPDX-License-Identifier: GPL-2.0-only 2 /* DVB USB compliant Linux driver for the 3 * - GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module 4 * 5 * Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com) 6 * Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com) 7 * 8 * Thanks to GENPIX for the sample code used to implement this module. 9 * 10 * This module is based off the vp7045 and vp702x modules 11 * 12 * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information 13 */ 14 #include "gp8psk.h" 15 #include "gp8psk-fe.h" 16 17 /* debug */ 18 static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw"; 19 int dvb_usb_gp8psk_debug; 20 module_param_named(debug,dvb_usb_gp8psk_debug, int, 0644); 21 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS); 22 23 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 24 25 struct gp8psk_state { 26 unsigned char data[80]; 27 }; 28 29 static int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, 30 u16 index, u8 *b, int blen) 31 { 32 struct gp8psk_state *st = d->priv; 33 int ret = 0,try = 0; 34 35 if (blen > sizeof(st->data)) 36 return -EIO; 37 38 if ((ret = mutex_lock_interruptible(&d->usb_mutex))) 39 return ret; 40 41 while (ret >= 0 && ret != blen && try < 3) { 42 ret = usb_control_msg(d->udev, 43 usb_rcvctrlpipe(d->udev,0), 44 req, 45 USB_TYPE_VENDOR | USB_DIR_IN, 46 value, index, st->data, blen, 47 2000); 48 deb_info("reading number %d (ret: %d)\n",try,ret); 49 try++; 50 } 51 52 if (ret < 0 || ret != blen) { 53 warn("usb in %d operation failed.", req); 54 ret = -EIO; 55 } else { 56 ret = 0; 57 memcpy(b, st->data, blen); 58 } 59 60 deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index); 61 debug_dump(b,blen,deb_xfer); 62 63 mutex_unlock(&d->usb_mutex); 64 65 return ret; 66 } 67 68 static int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value, 69 u16 index, u8 *b, int blen) 70 { 71 struct gp8psk_state *st = d->priv; 72 int ret; 73 74 deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index); 75 debug_dump(b,blen,deb_xfer); 76 77 if (blen > sizeof(st->data)) 78 return -EIO; 79 80 if ((ret = mutex_lock_interruptible(&d->usb_mutex))) 81 return ret; 82 83 memcpy(st->data, b, blen); 84 if (usb_control_msg(d->udev, 85 usb_sndctrlpipe(d->udev,0), 86 req, 87 USB_TYPE_VENDOR | USB_DIR_OUT, 88 value, index, st->data, blen, 89 2000) != blen) { 90 warn("usb out operation failed."); 91 ret = -EIO; 92 } else 93 ret = 0; 94 mutex_unlock(&d->usb_mutex); 95 96 return ret; 97 } 98 99 100 static int gp8psk_get_fw_version(struct dvb_usb_device *d, u8 *fw_vers) 101 { 102 return gp8psk_usb_in_op(d, GET_FW_VERS, 0, 0, fw_vers, 6); 103 } 104 105 static int gp8psk_get_fpga_version(struct dvb_usb_device *d, u8 *fpga_vers) 106 { 107 return gp8psk_usb_in_op(d, GET_FPGA_VERS, 0, 0, fpga_vers, 1); 108 } 109 110 static void gp8psk_info(struct dvb_usb_device *d) 111 { 112 u8 fpga_vers, fw_vers[6]; 113 114 if (!gp8psk_get_fw_version(d, fw_vers)) 115 info("FW Version = %i.%02i.%i (0x%x) Build %4i/%02i/%02i", 116 fw_vers[2], fw_vers[1], fw_vers[0], GP8PSK_FW_VERS(fw_vers), 117 2000 + fw_vers[5], fw_vers[4], fw_vers[3]); 118 else 119 info("failed to get FW version"); 120 121 if (!gp8psk_get_fpga_version(d, &fpga_vers)) 122 info("FPGA Version = %i", fpga_vers); 123 else 124 info("failed to get FPGA version"); 125 } 126 127 static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d) 128 { 129 int ret; 130 const struct firmware *fw = NULL; 131 const u8 *ptr; 132 u8 *buf; 133 if ((ret = request_firmware(&fw, bcm4500_firmware, 134 &d->udev->dev)) != 0) { 135 err("did not find the bcm4500 firmware file '%s' (status %d). You can use <kernel_dir>/scripts/get_dvb_firmware to get the firmware", 136 bcm4500_firmware,ret); 137 return ret; 138 } 139 140 ret = -EINVAL; 141 142 if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0)) 143 goto out_rel_fw; 144 145 info("downloading bcm4500 firmware from file '%s'",bcm4500_firmware); 146 147 ptr = fw->data; 148 buf = kmalloc(64, GFP_KERNEL); 149 if (!buf) { 150 ret = -ENOMEM; 151 goto out_rel_fw; 152 } 153 154 while (ptr[0] != 0xff) { 155 u16 buflen = ptr[0] + 4; 156 if (ptr + buflen >= fw->data + fw->size) { 157 err("failed to load bcm4500 firmware."); 158 goto out_free; 159 } 160 if (buflen > 64) { 161 err("firmware chunk size bigger than 64 bytes."); 162 goto out_free; 163 } 164 165 memcpy(buf, ptr, buflen); 166 if (dvb_usb_generic_write(d, buf, buflen)) { 167 err("failed to load bcm4500 firmware."); 168 goto out_free; 169 } 170 ptr += buflen; 171 } 172 173 ret = 0; 174 175 out_free: 176 kfree(buf); 177 out_rel_fw: 178 release_firmware(fw); 179 180 return ret; 181 } 182 183 static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff) 184 { 185 u8 status = 0, buf; 186 int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct); 187 188 if (onoff) { 189 gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1); 190 if (! (status & bm8pskStarted)) { /* started */ 191 if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K) 192 gp8psk_usb_out_op(d, CW3K_INIT, 1, 0, NULL, 0); 193 if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1)) 194 return -EINVAL; 195 gp8psk_info(d); 196 } 197 198 if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM) 199 if (! (status & bm8pskFW_Loaded)) /* BCM4500 firmware loaded */ 200 if(gp8psk_load_bcm4500fw(d)) 201 return -EINVAL; 202 203 if (! (status & bmIntersilOn)) /* LNB Power */ 204 if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0, 205 &buf, 1)) 206 return -EINVAL; 207 208 /* Set DVB mode to 1 */ 209 if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM) 210 if (gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0)) 211 return -EINVAL; 212 /* Abort possible TS (if previous tune crashed) */ 213 if (gp8psk_usb_out_op(d, ARM_TRANSFER, 0, 0, NULL, 0)) 214 return -EINVAL; 215 } else { 216 /* Turn off LNB power */ 217 if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1)) 218 return -EINVAL; 219 /* Turn off 8psk power */ 220 if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1)) 221 return -EINVAL; 222 if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K) 223 gp8psk_usb_out_op(d, CW3K_INIT, 0, 0, NULL, 0); 224 } 225 return 0; 226 } 227 228 static int gp8psk_bcm4500_reload(struct dvb_usb_device *d) 229 { 230 u8 buf; 231 int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct); 232 233 deb_xfer("reloading firmware\n"); 234 235 /* Turn off 8psk power */ 236 if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1)) 237 return -EINVAL; 238 /* Turn On 8psk power */ 239 if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1)) 240 return -EINVAL; 241 /* load BCM4500 firmware */ 242 if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM) 243 if (gp8psk_load_bcm4500fw(d)) 244 return -EINVAL; 245 return 0; 246 } 247 248 static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) 249 { 250 return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0); 251 } 252 253 /* Callbacks for gp8psk-fe.c */ 254 255 static int gp8psk_fe_in(void *priv, u8 req, u16 value, 256 u16 index, u8 *b, int blen) 257 { 258 struct dvb_usb_device *d = priv; 259 260 return gp8psk_usb_in_op(d, req, value, index, b, blen); 261 } 262 263 static int gp8psk_fe_out(void *priv, u8 req, u16 value, 264 u16 index, u8 *b, int blen) 265 { 266 struct dvb_usb_device *d = priv; 267 268 return gp8psk_usb_out_op(d, req, value, index, b, blen); 269 } 270 271 static int gp8psk_fe_reload(void *priv) 272 { 273 struct dvb_usb_device *d = priv; 274 275 return gp8psk_bcm4500_reload(d); 276 } 277 278 static const struct gp8psk_fe_ops gp8psk_fe_ops = { 279 .in = gp8psk_fe_in, 280 .out = gp8psk_fe_out, 281 .reload = gp8psk_fe_reload, 282 }; 283 284 static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap) 285 { 286 struct dvb_usb_device *d = adap->dev; 287 int id = le16_to_cpu(d->udev->descriptor.idProduct); 288 int is_rev1; 289 290 is_rev1 = (id == USB_PID_GENPIX_8PSK_REV_1_WARM) ? true : false; 291 292 adap->fe_adap[0].fe = dvb_attach(gp8psk_fe_attach, 293 &gp8psk_fe_ops, d, is_rev1); 294 return 0; 295 } 296 297 static struct dvb_usb_device_properties gp8psk_properties; 298 299 static int gp8psk_usb_probe(struct usb_interface *intf, 300 const struct usb_device_id *id) 301 { 302 int ret; 303 struct usb_device *udev = interface_to_usbdev(intf); 304 ret = dvb_usb_device_init(intf, &gp8psk_properties, 305 THIS_MODULE, NULL, adapter_nr); 306 if (ret == 0) { 307 info("found Genpix USB device pID = %x (hex)", 308 le16_to_cpu(udev->descriptor.idProduct)); 309 } 310 return ret; 311 } 312 313 static struct usb_device_id gp8psk_usb_table [] = { 314 { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_COLD) }, 315 { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_WARM) }, 316 { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_2) }, 317 { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_1) }, 318 { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_2) }, 319 /* { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_CW3K) }, */ 320 { 0 }, 321 }; 322 MODULE_DEVICE_TABLE(usb, gp8psk_usb_table); 323 324 static struct dvb_usb_device_properties gp8psk_properties = { 325 .usb_ctrl = CYPRESS_FX2, 326 .firmware = "dvb-usb-gp8psk-01.fw", 327 328 .size_of_priv = sizeof(struct gp8psk_state), 329 330 .num_adapters = 1, 331 .adapter = { 332 { 333 .num_frontends = 1, 334 .fe = {{ 335 .streaming_ctrl = gp8psk_streaming_ctrl, 336 .frontend_attach = gp8psk_frontend_attach, 337 /* parameter for the MPEG2-data transfer */ 338 .stream = { 339 .type = USB_BULK, 340 .count = 7, 341 .endpoint = 0x82, 342 .u = { 343 .bulk = { 344 .buffersize = 8192, 345 } 346 } 347 }, 348 }}, 349 } 350 }, 351 .power_ctrl = gp8psk_power_ctrl, 352 353 .generic_bulk_ctrl_endpoint = 0x01, 354 355 .num_device_descs = 4, 356 .devices = { 357 { .name = "Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver", 358 .cold_ids = { &gp8psk_usb_table[0], NULL }, 359 .warm_ids = { &gp8psk_usb_table[1], NULL }, 360 }, 361 { .name = "Genpix 8PSK-to-USB2 Rev.2 DVB-S receiver", 362 .cold_ids = { NULL }, 363 .warm_ids = { &gp8psk_usb_table[2], NULL }, 364 }, 365 { .name = "Genpix SkyWalker-1 DVB-S receiver", 366 .cold_ids = { NULL }, 367 .warm_ids = { &gp8psk_usb_table[3], NULL }, 368 }, 369 { .name = "Genpix SkyWalker-2 DVB-S receiver", 370 .cold_ids = { NULL }, 371 .warm_ids = { &gp8psk_usb_table[4], NULL }, 372 }, 373 { NULL }, 374 } 375 }; 376 377 /* usb specific object needed to register this driver with the usb subsystem */ 378 static struct usb_driver gp8psk_usb_driver = { 379 .name = "dvb_usb_gp8psk", 380 .probe = gp8psk_usb_probe, 381 .disconnect = dvb_usb_device_exit, 382 .id_table = gp8psk_usb_table, 383 }; 384 385 module_usb_driver(gp8psk_usb_driver); 386 387 MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>"); 388 MODULE_DESCRIPTION("Driver for Genpix DVB-S"); 389 MODULE_VERSION("1.1"); 390 MODULE_LICENSE("GPL"); 391