1/* DVB USB compliant Linux driver for the 2 * - GENPIX 8pks/qpsk USB2.0 DVB-S module 3 * 4 * Copyright (C) 2006 Alan Nisota (alannisota@gmail.com) 5 * 6 * Thanks to GENPIX for the sample code used to implement this module. 7 * 8 * This module is based off the vp7045 and vp702x modules 9 * 10 * This program is free software; you can redistribute it and/or modify it 11 * under the terms of the GNU General Public License as published by the Free 12 * Software Foundation, version 2. 13 * 14 * see Documentation/dvb/README.dvb-usb for more information 15 */ 16#include "gp8psk.h" 17 18/* debug */ 19static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw"; 20int dvb_usb_gp8psk_debug; 21module_param_named(debug,dvb_usb_gp8psk_debug, int, 0644); 22MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS); 23 24int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen) 25{ 26 int ret = 0,try = 0; 27 28 if ((ret = mutex_lock_interruptible(&d->usb_mutex))) 29 return ret; 30 31 while (ret >= 0 && ret != blen && try < 3) { 32 ret = usb_control_msg(d->udev, 33 usb_rcvctrlpipe(d->udev,0), 34 req, 35 USB_TYPE_VENDOR | USB_DIR_IN, 36 value,index,b,blen, 37 2000); 38 deb_info("reading number %d (ret: %d)\n",try,ret); 39 try++; 40 } 41 42 if (ret < 0 || ret != blen) { 43 warn("usb in operation failed."); 44 ret = -EIO; 45 } else 46 ret = 0; 47 48 deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index); 49 debug_dump(b,blen,deb_xfer); 50 51 mutex_unlock(&d->usb_mutex); 52 53 return ret; 54} 55 56int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value, 57 u16 index, u8 *b, int blen) 58{ 59 int ret; 60 61 deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index); 62 debug_dump(b,blen,deb_xfer); 63 64 if ((ret = mutex_lock_interruptible(&d->usb_mutex))) 65 return ret; 66 67 if (usb_control_msg(d->udev, 68 usb_sndctrlpipe(d->udev,0), 69 req, 70 USB_TYPE_VENDOR | USB_DIR_OUT, 71 value,index,b,blen, 72 2000) != blen) { 73 warn("usb out operation failed."); 74 ret = -EIO; 75 } else 76 ret = 0; 77 mutex_unlock(&d->usb_mutex); 78 79 return ret; 80} 81 82static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d) 83{ 84 int ret; 85 const struct firmware *fw = NULL; 86 u8 *ptr, *buf; 87 if ((ret = request_firmware(&fw, bcm4500_firmware, 88 &d->udev->dev)) != 0) { 89 err("did not find the bcm4500 firmware file. (%s) " 90 "Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)", 91 bcm4500_firmware,ret); 92 return ret; 93 } 94 95 ret = -EINVAL; 96 97 if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0)) 98 goto out_rel_fw; 99 100 info("downloaidng bcm4500 firmware from file '%s'",bcm4500_firmware); 101 102 ptr = fw->data; 103 buf = kmalloc(512, GFP_KERNEL | GFP_DMA); 104 105 while (ptr[0] != 0xff) { 106 u16 buflen = ptr[0] + 4; 107 if (ptr + buflen >= fw->data + fw->size) { 108 err("failed to load bcm4500 firmware."); 109 goto out_free; 110 } 111 memcpy(buf, ptr, buflen); 112 if (dvb_usb_generic_write(d, buf, buflen)) { 113 err("failed to load bcm4500 firmware."); 114 goto out_free; 115 } 116 ptr += buflen; 117 } 118 119 ret = 0; 120 121out_free: 122 kfree(buf); 123out_rel_fw: 124 release_firmware(fw); 125 126 return ret; 127} 128 129static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff) 130{ 131 u8 status, buf; 132 if (onoff) { 133 gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1); 134 if (! (status & 0x01)) /* started */ 135 if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1)) 136 return -EINVAL; 137 138 if (! (status & 0x02)) /* BCM4500 firmware loaded */ 139 if(gp8psk_load_bcm4500fw(d)) 140 return EINVAL; 141 142 if (! (status & 0x04)) /* LNB Power */ 143 if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0, 144 &buf, 1)) 145 return EINVAL; 146 147 /* Set DVB mode */ 148 if(gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0)) 149 return -EINVAL; 150 gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1); 151 } else { 152 /* Turn off LNB power */ 153 if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1)) 154 return EINVAL; 155 /* Turn off 8psk power */ 156 if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1)) 157 return -EINVAL; 158 159 } 160 return 0; 161} 162 163 164static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) 165{ 166 return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0); 167} 168 169static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap) 170{ 171 adap->fe = gp8psk_fe_attach(adap->dev); 172 return 0; 173} 174 175static struct dvb_usb_device_properties gp8psk_properties; 176 177static int gp8psk_usb_probe(struct usb_interface *intf, 178 const struct usb_device_id *id) 179{ 180 return dvb_usb_device_init(intf,&gp8psk_properties,THIS_MODULE,NULL); 181} 182 183static struct usb_device_id gp8psk_usb_table [] = { 184 { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_COLD) }, 185 { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_WARM) }, 186 { 0 }, 187}; 188MODULE_DEVICE_TABLE(usb, gp8psk_usb_table); 189 190static struct dvb_usb_device_properties gp8psk_properties = { 191 .usb_ctrl = CYPRESS_FX2, 192 .firmware = "dvb-usb-gp8psk-01.fw", 193 194 .num_adapters = 1, 195 .adapter = { 196 { 197 .streaming_ctrl = gp8psk_streaming_ctrl, 198 .frontend_attach = gp8psk_frontend_attach, 199 /* parameter for the MPEG2-data transfer */ 200 .stream = { 201 .type = USB_BULK, 202 .count = 7, 203 .endpoint = 0x82, 204 .u = { 205 .bulk = { 206 .buffersize = 8192, 207 } 208 } 209 }, 210 } 211 }, 212 .power_ctrl = gp8psk_power_ctrl, 213 214 .generic_bulk_ctrl_endpoint = 0x01, 215 216 .num_device_descs = 1, 217 .devices = { 218 { .name = "Genpix 8PSK-USB DVB-S USB2.0 receiver", 219 .cold_ids = { &gp8psk_usb_table[0], NULL }, 220 .warm_ids = { &gp8psk_usb_table[1], NULL }, 221 }, 222 { NULL }, 223 } 224}; 225 226/* usb specific object needed to register this driver with the usb subsystem */ 227static struct usb_driver gp8psk_usb_driver = { 228 .name = "dvb_usb_gp8psk", 229 .probe = gp8psk_usb_probe, 230 .disconnect = dvb_usb_device_exit, 231 .id_table = gp8psk_usb_table, 232}; 233 234/* module stuff */ 235static int __init gp8psk_usb_module_init(void) 236{ 237 int result; 238 if ((result = usb_register(&gp8psk_usb_driver))) { 239 err("usb_register failed. (%d)",result); 240 return result; 241 } 242 243 return 0; 244} 245 246static void __exit gp8psk_usb_module_exit(void) 247{ 248 /* deregister this driver from the USB subsystem */ 249 usb_deregister(&gp8psk_usb_driver); 250} 251 252module_init(gp8psk_usb_module_init); 253module_exit(gp8psk_usb_module_exit); 254 255MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>"); 256MODULE_DESCRIPTION("Driver for Genpix 8psk-USB DVB-S USB2.0"); 257MODULE_VERSION("1.0"); 258MODULE_LICENSE("GPL"); 259