Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
[linux-2.6] / drivers / media / dvb / dvb-usb / ttusb2.c
1 /* DVB USB compliant linux driver for Technotrend DVB USB boxes and clones
2  * (e.g. Pinnacle 400e DVB-S USB2.0).
3  *
4  * The Pinnacle 400e uses the same protocol as the Technotrend USB1.1 boxes.
5  *
6  * TDA8263 + TDA10086
7  *
8  * I2C addresses:
9  * 0x08 - LNBP21PD   - LNB power supply
10  * 0x0e - TDA10086   - Demodulator
11  * 0x50 - FX2 eeprom
12  * 0x60 - TDA8263    - Tuner
13  * 0x78 ???
14  *
15  * Copyright (c) 2002 Holger Waechtler <holger@convergence.de>
16  * Copyright (c) 2003 Felix Domke <tmbinc@elitedvb.net>
17  * Copyright (C) 2005-6 Patrick Boettcher <pb@linuxtv.org>
18  *
19  *      This program is free software; you can redistribute it and/or modify it
20  *      under the terms of the GNU General Public License as published by the Free
21  *      Software Foundation, version 2.
22  *
23  * see Documentation/dvb/README.dvb-usb for more information
24  */
25 #define DVB_USB_LOG_PREFIX "ttusb2"
26 #include "dvb-usb.h"
27
28 #include "ttusb2.h"
29
30 #include "tda826x.h"
31 #include "tda10086.h"
32 #include "lnbp21.h"
33
34 /* debug */
35 static int dvb_usb_ttusb2_debug;
36 #define deb_info(args...)   dprintk(dvb_usb_ttusb2_debug,0x01,args)
37 module_param_named(debug,dvb_usb_ttusb2_debug, int, 0644);
38 MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able))." DVB_USB_DEBUG_STATUS);
39
40 struct ttusb2_state {
41         u8 id;
42 };
43
44 static int ttusb2_msg(struct dvb_usb_device *d, u8 cmd,
45                 u8 *wbuf, int wlen, u8 *rbuf, int rlen)
46 {
47         struct ttusb2_state *st = d->priv;
48         u8 s[wlen+4],r[64] = { 0 };
49         int ret = 0;
50
51         memset(s,0,wlen+4);
52
53         s[0] = 0xaa;
54         s[1] = ++st->id;
55         s[2] = cmd;
56         s[3] = wlen;
57         memcpy(&s[4],wbuf,wlen);
58
59         ret = dvb_usb_generic_rw(d, s, wlen+4, r, 64, 0);
60
61         if (ret  != 0 ||
62                 r[0] != 0x55 ||
63                 r[1] != s[1] ||
64                 r[2] != cmd ||
65                 (rlen > 0 && r[3] != rlen)) {
66                 warn("there might have been an error during control message transfer. (rlen = %d, was %d)",rlen,r[3]);
67                 return -EIO;
68         }
69
70         if (rlen > 0)
71                 memcpy(rbuf, &r[4], rlen);
72
73         return 0;
74 }
75
76 static int ttusb2_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
77 {
78         struct dvb_usb_device *d = i2c_get_adapdata(adap);
79         static u8 obuf[60], ibuf[60];
80         int i,read;
81
82         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
83                 return -EAGAIN;
84
85         if (num > 2)
86                 warn("more than 2 i2c messages at a time is not handled yet. TODO.");
87
88         for (i = 0; i < num; i++) {
89                 read = i+1 < num && (msg[i+1].flags & I2C_M_RD);
90
91                 obuf[0] = (msg[i].addr << 1) | read;
92                 obuf[1] = msg[i].len;
93
94                 /* read request */
95                 if (read)
96                         obuf[2] = msg[i+1].len;
97                 else
98                         obuf[2] = 0;
99
100                 memcpy(&obuf[3],msg[i].buf,msg[i].len);
101
102                 if (ttusb2_msg(d, CMD_I2C_XFER, obuf, msg[i].len+3, ibuf, obuf[2] + 3) < 0) {
103                         err("i2c transfer failed.");
104                         break;
105                 }
106
107                 if (read) {
108                         memcpy(msg[i+1].buf,&ibuf[3],msg[i+1].len);
109                         i++;
110                 }
111         }
112
113         mutex_unlock(&d->i2c_mutex);
114         return i;
115 }
116
117 static u32 ttusb2_i2c_func(struct i2c_adapter *adapter)
118 {
119         return I2C_FUNC_I2C;
120 }
121
122 static struct i2c_algorithm ttusb2_i2c_algo = {
123         .master_xfer   = ttusb2_i2c_xfer,
124         .functionality = ttusb2_i2c_func,
125 };
126
127 /* Callbacks for DVB USB */
128 static int ttusb2_identify_state (struct usb_device *udev, struct
129                 dvb_usb_device_properties *props, struct dvb_usb_device_description **desc,
130                 int *cold)
131 {
132         *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0;
133         return 0;
134 }
135
136 static int ttusb2_power_ctrl(struct dvb_usb_device *d, int onoff)
137 {
138         u8 b = onoff;
139         ttusb2_msg(d, CMD_POWER, &b, 0, NULL, 0);
140         return ttusb2_msg(d, CMD_POWER, &b, 1, NULL, 0);
141 }
142
143
144 static struct tda10086_config tda10086_config = {
145         .demod_address = 0x0e,
146         .invert = 0,
147         .diseqc_tone = 1,
148 };
149
150 static int ttusb2_frontend_attach(struct dvb_usb_adapter *adap)
151 {
152         if (usb_set_interface(adap->dev->udev,0,3) < 0)
153                 err("set interface to alts=3 failed");
154
155         if ((adap->fe = dvb_attach(tda10086_attach, &tda10086_config, &adap->dev->i2c_adap)) == NULL) {
156                 deb_info("TDA10086 attach failed\n");
157                 return -ENODEV;
158         }
159
160         return 0;
161 }
162
163 static int ttusb2_tuner_attach(struct dvb_usb_adapter *adap)
164 {
165         if (dvb_attach(tda826x_attach, adap->fe, 0x60, &adap->dev->i2c_adap, 0) == NULL) {
166                 deb_info("TDA8263 attach failed\n");
167                 return -ENODEV;
168         }
169
170         if (dvb_attach(lnbp21_attach, adap->fe, &adap->dev->i2c_adap, 0, 0) == NULL) {
171                 deb_info("LNBP21 attach failed\n");
172                 return -ENODEV;
173         }
174         return 0;
175 }
176
177 /* DVB USB Driver stuff */
178 static struct dvb_usb_device_properties ttusb2_properties;
179
180 static int ttusb2_probe(struct usb_interface *intf,
181                 const struct usb_device_id *id)
182 {
183         return dvb_usb_device_init(intf,&ttusb2_properties,THIS_MODULE,NULL);
184 }
185
186 static struct usb_device_id ttusb2_table [] = {
187                 { USB_DEVICE(USB_VID_PINNACLE, USB_PID_PCTV_400E) },
188                 { USB_DEVICE(USB_VID_PINNACLE, USB_PID_PCTV_450E) },
189                 {}              /* Terminating entry */
190 };
191 MODULE_DEVICE_TABLE (usb, ttusb2_table);
192
193 static struct dvb_usb_device_properties ttusb2_properties = {
194         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
195
196         .usb_ctrl = CYPRESS_FX2,
197         .firmware = "dvb-usb-pctv-400e-01.fw",
198
199         .size_of_priv = sizeof(struct ttusb2_state),
200
201         .num_adapters = 1,
202         .adapter = {
203                 {
204                         .streaming_ctrl   = NULL, // ttusb2_streaming_ctrl,
205
206                         .frontend_attach  = ttusb2_frontend_attach,
207                         .tuner_attach     = ttusb2_tuner_attach,
208
209                         /* parameter for the MPEG2-data transfer */
210                         .stream = {
211                                 .type = USB_ISOC,
212                                 .count = 5,
213                                 .endpoint = 0x02,
214                                 .u = {
215                                         .isoc = {
216                                                 .framesperurb = 4,
217                                                 .framesize = 940,
218                                                 .interval = 1,
219                                         }
220                                 }
221                         }
222                 }
223         },
224
225         .power_ctrl       = ttusb2_power_ctrl,
226         .identify_state   = ttusb2_identify_state,
227
228         .i2c_algo         = &ttusb2_i2c_algo,
229
230         .generic_bulk_ctrl_endpoint = 0x01,
231
232         .num_device_descs = 2,
233         .devices = {
234                 {   "Pinnacle 400e DVB-S USB2.0",
235                         { &ttusb2_table[0], NULL },
236                         { NULL },
237                 },
238                 {   "Pinnacle 450e DVB-S USB2.0",
239                         { &ttusb2_table[1], NULL },
240                         { NULL },
241                 },
242         }
243 };
244
245 static struct usb_driver ttusb2_driver = {
246         .name           = "dvb_usb_ttusb2",
247         .probe          = ttusb2_probe,
248         .disconnect = dvb_usb_device_exit,
249         .id_table       = ttusb2_table,
250 };
251
252 /* module stuff */
253 static int __init ttusb2_module_init(void)
254 {
255         int result;
256         if ((result = usb_register(&ttusb2_driver))) {
257                 err("usb_register failed. Error number %d",result);
258                 return result;
259         }
260
261         return 0;
262 }
263
264 static void __exit ttusb2_module_exit(void)
265 {
266         /* deregister this driver from the USB subsystem */
267         usb_deregister(&ttusb2_driver);
268 }
269
270 module_init (ttusb2_module_init);
271 module_exit (ttusb2_module_exit);
272
273 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
274 MODULE_DESCRIPTION("Driver for Pinnacle PCTV 400e DVB-S USB2.0");
275 MODULE_VERSION("1.0");
276 MODULE_LICENSE("GPL");