/* DVB USB compliant Linux driver for the * - GENPIX 8pks/qpsk USB2.0 DVB-S module * * Copyright (C) 2006 Alan Nisota (alannisota@gmail.com) * * Thanks to GENPIX for the sample code used to implement this module. * * This module is based off the vp7045 and vp702x modules * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation, version 2. * * see Documentation/dvb/README.dvb-usb for more information */ #include "gp8psk.h" /* debug */ static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw"; int dvb_usb_gp8psk_debug; module_param_named(debug,dvb_usb_gp8psk_debug, int, 0644); MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS); int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen) { int ret = 0,try = 0; if ((ret = mutex_lock_interruptible(&d->usb_mutex))) return ret; while (ret >= 0 && ret != blen && try < 3) { ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev,0), req, USB_TYPE_VENDOR | USB_DIR_IN, value,index,b,blen, 2000); deb_info("reading number %d (ret: %d)\n",try,ret); try++; } if (ret < 0 || ret != blen) { warn("usb in operation failed."); ret = -EIO; } else ret = 0; deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index); debug_dump(b,blen,deb_xfer); mutex_unlock(&d->usb_mutex); return ret; } int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen) { int ret; deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index); debug_dump(b,blen,deb_xfer); if ((ret = mutex_lock_interruptible(&d->usb_mutex))) return ret; if (usb_control_msg(d->udev, usb_sndctrlpipe(d->udev,0), req, USB_TYPE_VENDOR | USB_DIR_OUT, value,index,b,blen, 2000) != blen) { warn("usb out operation failed."); ret = -EIO; } else ret = 0; mutex_unlock(&d->usb_mutex); return ret; } static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d) { int ret; const struct firmware *fw = NULL; u8 *ptr, *buf; if ((ret = request_firmware(&fw, bcm4500_firmware, &d->udev->dev)) != 0) { err("did not find the bcm4500 firmware file. (%s) " "Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)", bcm4500_firmware,ret); return ret; } if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0)) { release_firmware(fw); return -EINVAL; } info("downloaidng bcm4500 firmware from file '%s'",bcm4500_firmware); ptr = fw->data; buf = (u8 *) kmalloc(512, GFP_KERNEL | GFP_DMA); while (ptr[0] != 0xff) { u16 buflen = ptr[0] + 4; if (ptr + buflen >= fw->data + fw->size) { err("failed to load bcm4500 firmware."); release_firmware(fw); kfree(buf); return -EINVAL; } memcpy(buf, ptr, buflen); if (dvb_usb_generic_write(d, buf, buflen)) { err("failed to load bcm4500 firmware."); release_firmware(fw); kfree(buf); return -EIO; } ptr += buflen; } release_firmware(fw); kfree(buf); return 0; } static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff) { u8 status, buf; if (onoff) { gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1); if (! (status & 0x01)) /* started */ if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1)) return -EINVAL; if (! (status & 0x02)) /* BCM4500 firmware loaded */ if(gp8psk_load_bcm4500fw(d)) return EINVAL; if (! (status & 0x04)) /* LNB Power */ if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0, &buf, 1)) return EINVAL; /* Set DVB mode */ if(gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0)) return -EINVAL; gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1); } else { /* Turn off LNB power */ if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1)) return EINVAL; /* Turn off 8psk power */ if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1)) return -EINVAL; } return 0; } static int gp8psk_streaming_ctrl(struct dvb_usb_device *d, int onoff) { return gp8psk_usb_out_op(d, ARM_TRANSFER, onoff, 0 , NULL, 0); } static int gp8psk_frontend_attach(struct dvb_usb_device *d) { d->fe = gp8psk_fe_attach(d); return 0; } static struct dvb_usb_properties gp8psk_properties; static int gp8psk_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) { return dvb_usb_device_init(intf,&gp8psk_properties,THIS_MODULE,NULL); } static struct usb_device_id gp8psk_usb_table [] = { { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_COLD) }, { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_WARM) }, { 0 }, }; MODULE_DEVICE_TABLE(usb, gp8psk_usb_table); static struct dvb_usb_properties gp8psk_properties = { .caps = 0, .usb_ctrl = CYPRESS_FX2, .firmware = "dvb-usb-gp8psk-01.fw", .streaming_ctrl = gp8psk_streaming_ctrl, .power_ctrl = gp8psk_power_ctrl, .frontend_attach = gp8psk_frontend_attach, .generic_bulk_ctrl_endpoint = 0x01, /* parameter for the MPEG2-data transfer */ .urb = { .type = DVB_USB_BULK, .count = 7, .endpoint = 0x82, .u = { .bulk = { .buffersize = 8192, } } }, .num_device_descs = 1, .devices = { { .name = "Genpix 8PSK-USB DVB-S USB2.0 receiver", .cold_ids = { &gp8psk_usb_table[0], NULL }, .warm_ids = { &gp8psk_usb_table[1], NULL }, }, { 0 }, } }; /* usb specific object needed to register this driver with the usb subsystem */ static struct usb_driver gp8psk_usb_driver = { .name = "dvb_usb_gp8psk", .probe = gp8psk_usb_probe, .disconnect = dvb_usb_device_exit, .id_table = gp8psk_usb_table, }; /* module stuff */ static int __init gp8psk_usb_module_init(void) { int result; if ((result = usb_register(&gp8psk_usb_driver))) { err("usb_register failed. (%d)",result); return result; } return 0; } static void __exit gp8psk_usb_module_exit(void) { /* deregister this driver from the USB subsystem */ usb_deregister(&gp8psk_usb_driver); } module_init(gp8psk_usb_module_init); module_exit(gp8psk_usb_module_exit); MODULE_AUTHOR("Alan Nisota "); MODULE_DESCRIPTION("Driver for Genpix 8psk-USB DVB-S USB2.0"); MODULE_VERSION("1.0"); MODULE_LICENSE("GPL");