/* DVB USB compliant linux driver for Nebula Electronics uDigiTV DVB-T USB2.0 * receiver * * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@desy.de) * * partly based on the SDK published by Nebula Electronics * * 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 "digitv.h" #include "mt352.h" #include "nxt6000.h" /* debug */ int dvb_usb_digitv_debug; module_param_named(debug,dvb_usb_digitv_debug, int, 0644); MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS); static int digitv_ctrl_msg(struct dvb_usb_device *d, u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen) { int wo = (rbuf == NULL || rlen == 0); /* write-only */ u8 sndbuf[7],rcvbuf[7]; memset(sndbuf,0,7); memset(rcvbuf,0,7); sndbuf[0] = cmd; sndbuf[1] = vv; sndbuf[2] = wo ? wlen : rlen; if (wo) { memcpy(&sndbuf[3],wbuf,wlen); dvb_usb_generic_write(d,sndbuf,7); } else { dvb_usb_generic_rw(d,sndbuf,7,rcvbuf,7,10); memcpy(rbuf,&rcvbuf[3],rlen); } return 0; } /* I2C */ static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num) { struct dvb_usb_device *d = i2c_get_adapdata(adap); int i; if (mutex_lock_interruptible(&d->i2c_mutex) < 0) return -EAGAIN; if (num > 2) warn("more than 2 i2c messages at a time is not handled yet. TODO."); for (i = 0; i < num; i++) { /* write/read request */ if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { if (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0, msg[i+1].buf,msg[i+1].len) < 0) break; i++; } else if (digitv_ctrl_msg(d,USB_WRITE_COFDM, msg[i].buf[0], &msg[i].buf[1],msg[i].len-1,NULL,0) < 0) break; } mutex_unlock(&d->i2c_mutex); return i; } static u32 digitv_i2c_func(struct i2c_adapter *adapter) { return I2C_FUNC_I2C; } static struct i2c_algorithm digitv_i2c_algo = { .master_xfer = digitv_i2c_xfer, .functionality = digitv_i2c_func, }; /* Callbacks for DVB USB */ static int digitv_identify_state (struct usb_device *udev, struct dvb_usb_properties *props, struct dvb_usb_device_description **desc, int *cold) { *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0; return 0; } static int digitv_mt352_demod_init(struct dvb_frontend *fe) { static u8 reset_buf[] = { 0x89, 0x38, 0x8a, 0x2d, 0x50, 0x80 }; static u8 init_buf[] = { 0x68, 0xa0, 0x8e, 0x40, 0x53, 0x50, 0x67, 0x20, 0x7d, 0x01, 0x7c, 0x00, 0x7a, 0x00, 0x79, 0x20, 0x57, 0x05, 0x56, 0x31, 0x88, 0x0f, 0x75, 0x32 }; int i; for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2) mt352_write(fe, &reset_buf[i], 2); msleep(1); for (i = 0; i < ARRAY_SIZE(init_buf); i += 2) mt352_write(fe, &init_buf[i], 2); return 0; } static struct mt352_config digitv_mt352_config = { .demod_init = digitv_mt352_demod_init, }; static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep) { struct dvb_usb_device *d = fe->dvb->priv; u8 b[5]; dvb_usb_tuner_calc_regs(fe,fep,b, 5); return digitv_ctrl_msg(d,USB_WRITE_TUNER,0,&b[1],4,NULL,0); } static struct nxt6000_config digitv_nxt6000_config = { .clock_inversion = 1, }; static int digitv_frontend_attach(struct dvb_usb_device *d) { if ((d->fe = dvb_attach(mt352_attach, &digitv_mt352_config, &d->i2c_adap)) != NULL) { d->fe->ops.tuner_ops.calc_regs = dvb_usb_tuner_calc_regs; return 0; } if ((d->fe = dvb_attach(nxt6000_attach, &digitv_nxt6000_config, &d->i2c_adap)) != NULL) { d->fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params; return 0; } return -EIO; } static int digitv_tuner_attach(struct dvb_usb_device *d) { d->pll_addr = 0x60; d->pll_desc = &dvb_pll_tded4; return 0; } static struct dvb_usb_rc_key digitv_rc_keys[] = { { 0x00, 0x16, KEY_POWER }, /* dummy key */ }; /* TODO is it really the NEC protocol ? */ static int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state) { u8 key[5]; digitv_ctrl_msg(d,USB_READ_REMOTE,0,NULL,0,&key[1],4); /* TODO state, maybe it is VV ? */ if (key[1] != 0) key[0] = 0x01; /* if something is inside the buffer, simulate key press */ /* call the universal NEC remote processor, to find out the key's state and event */ dvb_usb_nec_rc_key_to_event(d,key,event,state); if (key[0] != 0) deb_rc("key: %x %x %x %x %x\n",key[0],key[1],key[2],key[3],key[4]); return 0; } /* DVB USB Driver stuff */ static struct dvb_usb_properties digitv_properties; static int digitv_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct dvb_usb_device *d; int ret; if ((ret = dvb_usb_device_init(intf,&digitv_properties,THIS_MODULE,&d)) == 0) { u8 b[4] = { 0 }; if (d != NULL) { /* do that only when the firmware is loaded */ b[0] = 1; digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0); b[0] = 0; digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0); } } return ret; } static struct usb_device_id digitv_table [] = { { USB_DEVICE(USB_VID_ANCHOR, USB_PID_NEBULA_DIGITV) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE (usb, digitv_table); static struct dvb_usb_properties digitv_properties = { .caps = DVB_USB_IS_AN_I2C_ADAPTER, .usb_ctrl = CYPRESS_FX2, .firmware = "dvb-usb-digitv-02.fw", .size_of_priv = 0, .frontend_attach = digitv_frontend_attach, .tuner_attach = digitv_tuner_attach, .rc_interval = 1000, .rc_key_map = digitv_rc_keys, .rc_key_map_size = ARRAY_SIZE(digitv_rc_keys), .rc_query = digitv_rc_query, .identify_state = digitv_identify_state, .i2c_algo = &digitv_i2c_algo, .generic_bulk_ctrl_endpoint = 0x01, /* parameter for the MPEG2-data transfer */ .urb = { .type = DVB_USB_BULK, .count = 7, .endpoint = 0x02, .u = { .bulk = { .buffersize = 4096, } } }, .num_device_descs = 1, .devices = { { "Nebula Electronics uDigiTV DVB-T USB2.0)", { &digitv_table[0], NULL }, { NULL }, }, { NULL }, } }; static struct usb_driver digitv_driver = { .name = "dvb_usb_digitv", .probe = digitv_probe, .disconnect = dvb_usb_device_exit, .id_table = digitv_table, }; /* module stuff */ static int __init digitv_module_init(void) { int result; if ((result = usb_register(&digitv_driver))) { err("usb_register failed. Error number %d",result); return result; } return 0; } static void __exit digitv_module_exit(void) { /* deregister this driver from the USB subsystem */ usb_deregister(&digitv_driver); } module_init (digitv_module_init); module_exit (digitv_module_exit); MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>"); MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0"); MODULE_VERSION("1.0-alpha"); MODULE_LICENSE("GPL");