Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 1 | /* DVB USB compliant linux driver for Nebula Electronics uDigiTV DVB-T USB2.0 |
| 2 | * receiver |
| 3 | * |
Patrick Boettcher | 78c6e73 | 2005-07-07 17:58:13 -0700 | [diff] [blame] | 4 | * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@desy.de) |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 5 | * |
Patrick Boettcher | 78c6e73 | 2005-07-07 17:58:13 -0700 | [diff] [blame] | 6 | * partly based on the SDK published by Nebula Electronics |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the Free |
| 10 | * Software Foundation, version 2. |
| 11 | * |
| 12 | * see Documentation/dvb/README.dvb-usb for more information |
| 13 | */ |
| 14 | #include "digitv.h" |
| 15 | |
| 16 | #include "mt352.h" |
| 17 | #include "nxt6000.h" |
| 18 | |
| 19 | /* debug */ |
| 20 | int dvb_usb_digitv_debug; |
| 21 | module_param_named(debug,dvb_usb_digitv_debug, int, 0644); |
| 22 | MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS); |
| 23 | |
| 24 | static int digitv_ctrl_msg(struct dvb_usb_device *d, |
| 25 | u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen) |
| 26 | { |
| 27 | int wo = (rbuf == NULL || rlen == 0); /* write-only */ |
| 28 | u8 sndbuf[7],rcvbuf[7]; |
| 29 | memset(sndbuf,0,7); memset(rcvbuf,0,7); |
| 30 | |
| 31 | sndbuf[0] = cmd; |
| 32 | sndbuf[1] = vv; |
| 33 | sndbuf[2] = wo ? wlen : rlen; |
| 34 | |
Mauro Carvalho Chehab | 4302c15 | 2006-01-09 15:25:22 -0200 | [diff] [blame] | 35 | if (wo) { |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 36 | memcpy(&sndbuf[3],wbuf,wlen); |
| 37 | dvb_usb_generic_write(d,sndbuf,7); |
| 38 | } else { |
| 39 | dvb_usb_generic_rw(d,sndbuf,7,rcvbuf,7,10); |
Patrick Boettcher | 9743280 | 2005-07-07 17:58:17 -0700 | [diff] [blame] | 40 | memcpy(rbuf,&rcvbuf[3],rlen); |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 41 | } |
| 42 | return 0; |
| 43 | } |
| 44 | |
| 45 | /* I2C */ |
| 46 | static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num) |
| 47 | { |
| 48 | struct dvb_usb_device *d = i2c_get_adapdata(adap); |
| 49 | int i; |
| 50 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 51 | if (mutex_lock_interruptible(&d->i2c_mutex) < 0) |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 52 | return -EAGAIN; |
| 53 | |
| 54 | if (num > 2) |
| 55 | warn("more than 2 i2c messages at a time is not handled yet. TODO."); |
| 56 | |
| 57 | for (i = 0; i < num; i++) { |
| 58 | /* write/read request */ |
| 59 | if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { |
| 60 | if (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0, |
| 61 | msg[i+1].buf,msg[i+1].len) < 0) |
| 62 | break; |
| 63 | i++; |
| 64 | } else |
| 65 | if (digitv_ctrl_msg(d,USB_WRITE_COFDM, msg[i].buf[0], |
| 66 | &msg[i].buf[1],msg[i].len-1,NULL,0) < 0) |
| 67 | break; |
| 68 | } |
| 69 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 70 | mutex_unlock(&d->i2c_mutex); |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 71 | return i; |
| 72 | } |
| 73 | |
| 74 | static u32 digitv_i2c_func(struct i2c_adapter *adapter) |
| 75 | { |
| 76 | return I2C_FUNC_I2C; |
| 77 | } |
| 78 | |
| 79 | static struct i2c_algorithm digitv_i2c_algo = { |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 80 | .master_xfer = digitv_i2c_xfer, |
| 81 | .functionality = digitv_i2c_func, |
| 82 | }; |
| 83 | |
| 84 | /* Callbacks for DVB USB */ |
| 85 | static int digitv_identify_state (struct usb_device *udev, struct |
| 86 | dvb_usb_properties *props, struct dvb_usb_device_description **desc, |
| 87 | int *cold) |
| 88 | { |
| 89 | *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0; |
| 90 | return 0; |
| 91 | } |
| 92 | |
| 93 | static int digitv_mt352_demod_init(struct dvb_frontend *fe) |
| 94 | { |
Patrick Boettcher | 78c6e73 | 2005-07-07 17:58:13 -0700 | [diff] [blame] | 95 | static u8 reset_buf[] = { 0x89, 0x38, 0x8a, 0x2d, 0x50, 0x80 }; |
| 96 | static u8 init_buf[] = { 0x68, 0xa0, 0x8e, 0x40, 0x53, 0x50, |
| 97 | 0x67, 0x20, 0x7d, 0x01, 0x7c, 0x00, 0x7a, 0x00, |
| 98 | 0x79, 0x20, 0x57, 0x05, 0x56, 0x31, 0x88, 0x0f, |
| 99 | 0x75, 0x32 }; |
| 100 | int i; |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 101 | |
Patrick Boettcher | 78c6e73 | 2005-07-07 17:58:13 -0700 | [diff] [blame] | 102 | for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2) |
| 103 | mt352_write(fe, &reset_buf[i], 2); |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 104 | |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 105 | msleep(1); |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 106 | |
Patrick Boettcher | 78c6e73 | 2005-07-07 17:58:13 -0700 | [diff] [blame] | 107 | for (i = 0; i < ARRAY_SIZE(init_buf); i += 2) |
| 108 | mt352_write(fe, &init_buf[i], 2); |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 109 | |
| 110 | return 0; |
| 111 | } |
| 112 | |
| 113 | static struct mt352_config digitv_mt352_config = { |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 114 | .demod_init = digitv_mt352_demod_init, |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 115 | }; |
| 116 | |
Andrew de Quincey | aac9ee9 | 2006-04-18 17:47:12 -0300 | [diff] [blame] | 117 | static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep) |
Svante Olofsson | 115eea4 | 2005-09-09 13:02:48 -0700 | [diff] [blame] | 118 | { |
| 119 | struct dvb_usb_device *d = fe->dvb->priv; |
| 120 | u8 b[5]; |
Andrew de Quincey | bd4956b | 2006-04-18 21:38:49 -0300 | [diff] [blame] | 121 | dvb_usb_tuner_calc_regs(fe,fep,b, 5); |
Svante Olofsson | 115eea4 | 2005-09-09 13:02:48 -0700 | [diff] [blame] | 122 | return digitv_ctrl_msg(d,USB_WRITE_TUNER,0,&b[1],4,NULL,0); |
| 123 | } |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 124 | |
Svante Olofsson | 115eea4 | 2005-09-09 13:02:48 -0700 | [diff] [blame] | 125 | static struct nxt6000_config digitv_nxt6000_config = { |
| 126 | .clock_inversion = 1, |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 127 | }; |
| 128 | |
| 129 | static int digitv_frontend_attach(struct dvb_usb_device *d) |
| 130 | { |
Andrew de Quincey | aac9ee9 | 2006-04-18 17:47:12 -0300 | [diff] [blame] | 131 | if ((d->fe = mt352_attach(&digitv_mt352_config, &d->i2c_adap)) != NULL) { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 132 | d->fe->ops.tuner_ops.calc_regs = dvb_usb_tuner_calc_regs; |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 133 | return 0; |
Andrew de Quincey | aac9ee9 | 2006-04-18 17:47:12 -0300 | [diff] [blame] | 134 | } |
| 135 | if ((d->fe = nxt6000_attach(&digitv_nxt6000_config, &d->i2c_adap)) != NULL) { |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 136 | d->fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params; |
Andrew de Quincey | aac9ee9 | 2006-04-18 17:47:12 -0300 | [diff] [blame] | 137 | return 0; |
| 138 | } |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 139 | return -EIO; |
| 140 | } |
| 141 | |
Patrick Boettcher | 78c6e73 | 2005-07-07 17:58:13 -0700 | [diff] [blame] | 142 | static int digitv_tuner_attach(struct dvb_usb_device *d) |
| 143 | { |
| 144 | d->pll_addr = 0x60; |
| 145 | d->pll_desc = &dvb_pll_tded4; |
| 146 | return 0; |
| 147 | } |
| 148 | |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 149 | static struct dvb_usb_rc_key digitv_rc_keys[] = { |
| 150 | { 0x00, 0x16, KEY_POWER }, /* dummy key */ |
| 151 | }; |
| 152 | |
| 153 | /* TODO is it really the NEC protocol ? */ |
Adrian Bunk | 15ac8e6 | 2005-12-01 00:51:53 -0800 | [diff] [blame] | 154 | static int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state) |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 155 | { |
| 156 | u8 key[5]; |
| 157 | |
| 158 | digitv_ctrl_msg(d,USB_READ_REMOTE,0,NULL,0,&key[1],4); |
| 159 | /* TODO state, maybe it is VV ? */ |
| 160 | if (key[1] != 0) |
| 161 | key[0] = 0x01; /* if something is inside the buffer, simulate key press */ |
| 162 | |
| 163 | /* call the universal NEC remote processor, to find out the key's state and event */ |
| 164 | dvb_usb_nec_rc_key_to_event(d,key,event,state); |
| 165 | if (key[0] != 0) |
| 166 | deb_rc("key: %x %x %x %x %x\n",key[0],key[1],key[2],key[3],key[4]); |
| 167 | return 0; |
| 168 | } |
| 169 | |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 170 | /* DVB USB Driver stuff */ |
| 171 | static struct dvb_usb_properties digitv_properties; |
| 172 | |
| 173 | static int digitv_probe(struct usb_interface *intf, |
| 174 | const struct usb_device_id *id) |
| 175 | { |
Svante Olofsson | 115eea4 | 2005-09-09 13:02:48 -0700 | [diff] [blame] | 176 | struct dvb_usb_device *d; |
| 177 | int ret; |
| 178 | if ((ret = dvb_usb_device_init(intf,&digitv_properties,THIS_MODULE,&d)) == 0) { |
| 179 | u8 b[4] = { 0 }; |
| 180 | |
Patrick Boettcher | 21d0654 | 2006-02-07 06:49:12 -0200 | [diff] [blame] | 181 | if (d != NULL) { /* do that only when the firmware is loaded */ |
| 182 | b[0] = 1; |
| 183 | digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0); |
Svante Olofsson | 115eea4 | 2005-09-09 13:02:48 -0700 | [diff] [blame] | 184 | |
Patrick Boettcher | 21d0654 | 2006-02-07 06:49:12 -0200 | [diff] [blame] | 185 | b[0] = 0; |
| 186 | digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0); |
| 187 | } |
Svante Olofsson | 115eea4 | 2005-09-09 13:02:48 -0700 | [diff] [blame] | 188 | } |
| 189 | return ret; |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | static struct usb_device_id digitv_table [] = { |
| 193 | { USB_DEVICE(USB_VID_ANCHOR, USB_PID_NEBULA_DIGITV) }, |
| 194 | { } /* Terminating entry */ |
| 195 | }; |
| 196 | MODULE_DEVICE_TABLE (usb, digitv_table); |
| 197 | |
| 198 | static struct dvb_usb_properties digitv_properties = { |
| 199 | .caps = DVB_USB_IS_AN_I2C_ADAPTER, |
| 200 | |
| 201 | .usb_ctrl = CYPRESS_FX2, |
Patrick Boettcher | 21d0654 | 2006-02-07 06:49:12 -0200 | [diff] [blame] | 202 | .firmware = "dvb-usb-digitv-02.fw", |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 203 | |
| 204 | .size_of_priv = 0, |
| 205 | |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 206 | .frontend_attach = digitv_frontend_attach, |
Patrick Boettcher | 78c6e73 | 2005-07-07 17:58:13 -0700 | [diff] [blame] | 207 | .tuner_attach = digitv_tuner_attach, |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 208 | |
| 209 | .rc_interval = 1000, |
| 210 | .rc_key_map = digitv_rc_keys, |
| 211 | .rc_key_map_size = ARRAY_SIZE(digitv_rc_keys), |
| 212 | .rc_query = digitv_rc_query, |
| 213 | |
| 214 | .identify_state = digitv_identify_state, |
| 215 | |
| 216 | .i2c_algo = &digitv_i2c_algo, |
| 217 | |
| 218 | .generic_bulk_ctrl_endpoint = 0x01, |
| 219 | /* parameter for the MPEG2-data transfer */ |
| 220 | .urb = { |
| 221 | .type = DVB_USB_BULK, |
| 222 | .count = 7, |
| 223 | .endpoint = 0x02, |
| 224 | .u = { |
| 225 | .bulk = { |
| 226 | .buffersize = 4096, |
| 227 | } |
| 228 | } |
| 229 | }, |
| 230 | |
Patrick Boettcher | 78c6e73 | 2005-07-07 17:58:13 -0700 | [diff] [blame] | 231 | .num_device_descs = 1, |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 232 | .devices = { |
| 233 | { "Nebula Electronics uDigiTV DVB-T USB2.0)", |
| 234 | { &digitv_table[0], NULL }, |
| 235 | { NULL }, |
| 236 | }, |
Patrick Boettcher | 21d0654 | 2006-02-07 06:49:12 -0200 | [diff] [blame] | 237 | { NULL }, |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 238 | } |
| 239 | }; |
| 240 | |
| 241 | static struct usb_driver digitv_driver = { |
Patrick Boettcher | 63b5c1c | 2005-07-07 17:58:30 -0700 | [diff] [blame] | 242 | .name = "dvb_usb_digitv", |
Johannes Stezenbach | 776338e | 2005-06-23 22:02:35 -0700 | [diff] [blame] | 243 | .probe = digitv_probe, |
| 244 | .disconnect = dvb_usb_device_exit, |
| 245 | .id_table = digitv_table, |
| 246 | }; |
| 247 | |
| 248 | /* module stuff */ |
| 249 | static int __init digitv_module_init(void) |
| 250 | { |
| 251 | int result; |
| 252 | if ((result = usb_register(&digitv_driver))) { |
| 253 | err("usb_register failed. Error number %d",result); |
| 254 | return result; |
| 255 | } |
| 256 | |
| 257 | return 0; |
| 258 | } |
| 259 | |
| 260 | static void __exit digitv_module_exit(void) |
| 261 | { |
| 262 | /* deregister this driver from the USB subsystem */ |
| 263 | usb_deregister(&digitv_driver); |
| 264 | } |
| 265 | |
| 266 | module_init (digitv_module_init); |
| 267 | module_exit (digitv_module_exit); |
| 268 | |
| 269 | MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>"); |
| 270 | MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0"); |
| 271 | MODULE_VERSION("1.0-alpha"); |
| 272 | MODULE_LICENSE("GPL"); |