Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
[linux-2.6] / drivers / media / dvb / dvb-usb / digitv.c
1 /* DVB USB compliant linux driver for Nebula Electronics uDigiTV DVB-T USB2.0
2  * receiver
3  *
4  * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@desy.de)
5  *
6  * partly based on the SDK published by Nebula Electronics
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
35         if (wo) {
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);
40                 memcpy(rbuf,&rcvbuf[3],rlen);
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
51         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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
70         mutex_unlock(&d->i2c_mutex);
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 = {
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_device_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 {
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;
101
102         for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2)
103                 mt352_write(fe, &reset_buf[i], 2);
104
105         msleep(1);
106
107         for (i = 0; i < ARRAY_SIZE(init_buf); i += 2)
108                 mt352_write(fe, &init_buf[i], 2);
109
110         return 0;
111 }
112
113 static struct mt352_config digitv_mt352_config = {
114         .demod_init = digitv_mt352_demod_init,
115 };
116
117 static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep)
118 {
119         struct dvb_usb_adapter *adap = fe->dvb->priv;
120         u8 b[5];
121
122         fe->ops.tuner_ops.calc_regs(fe, fep, b, sizeof(b));
123         if (fe->ops.i2c_gate_ctrl)
124                 fe->ops.i2c_gate_ctrl(fe, 1);
125         return digitv_ctrl_msg(adap->dev, USB_WRITE_TUNER, 0, &b[1], 4, NULL, 0);
126 }
127
128 static struct nxt6000_config digitv_nxt6000_config = {
129         .clock_inversion = 1,
130 };
131
132 static int digitv_frontend_attach(struct dvb_usb_adapter *adap)
133 {
134         struct digitv_state *st = adap->dev->priv;
135
136         if ((adap->fe = dvb_attach(mt352_attach, &digitv_mt352_config, &adap->dev->i2c_adap)) != NULL) {
137                 st->is_nxt6000 = 0;
138                 return 0;
139         }
140         if ((adap->fe = dvb_attach(nxt6000_attach, &digitv_nxt6000_config, &adap->dev->i2c_adap)) != NULL) {
141                 st->is_nxt6000 = 1;
142                 return 0;
143         }
144         return -EIO;
145 }
146
147 static int digitv_tuner_attach(struct dvb_usb_adapter *adap)
148 {
149         struct digitv_state *st = adap->dev->priv;
150
151         if (!dvb_attach(dvb_pll_attach, adap->fe, 0x60, NULL, DVB_PLL_TDED4))
152                 return -ENODEV;
153
154         if (st->is_nxt6000)
155                 adap->fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params;
156
157         return 0;
158 }
159
160 static struct dvb_usb_rc_key digitv_rc_keys[] = {
161         { 0x5f, 0x55, KEY_0 },
162         { 0x6f, 0x55, KEY_1 },
163         { 0x9f, 0x55, KEY_2 },
164         { 0xaf, 0x55, KEY_3 },
165         { 0x5f, 0x56, KEY_4 },
166         { 0x6f, 0x56, KEY_5 },
167         { 0x9f, 0x56, KEY_6 },
168         { 0xaf, 0x56, KEY_7 },
169         { 0x5f, 0x59, KEY_8 },
170         { 0x6f, 0x59, KEY_9 },
171         { 0x9f, 0x59, KEY_TV },
172         { 0xaf, 0x59, KEY_AUX },
173         { 0x5f, 0x5a, KEY_DVD },
174         { 0x6f, 0x5a, KEY_POWER },
175         { 0x9f, 0x5a, KEY_MHP },     /* labelled 'Picture' */
176         { 0xaf, 0x5a, KEY_AUDIO },
177         { 0x5f, 0x65, KEY_INFO },
178         { 0x6f, 0x65, KEY_F13 },     /* 16:9 */
179         { 0x9f, 0x65, KEY_F14 },     /* 14:9 */
180         { 0xaf, 0x65, KEY_EPG },
181         { 0x5f, 0x66, KEY_EXIT },
182         { 0x6f, 0x66, KEY_MENU },
183         { 0x9f, 0x66, KEY_UP },
184         { 0xaf, 0x66, KEY_DOWN },
185         { 0x5f, 0x69, KEY_LEFT },
186         { 0x6f, 0x69, KEY_RIGHT },
187         { 0x9f, 0x69, KEY_ENTER },
188         { 0xaf, 0x69, KEY_CHANNELUP },
189         { 0x5f, 0x6a, KEY_CHANNELDOWN },
190         { 0x6f, 0x6a, KEY_VOLUMEUP },
191         { 0x9f, 0x6a, KEY_VOLUMEDOWN },
192         { 0xaf, 0x6a, KEY_RED },
193         { 0x5f, 0x95, KEY_GREEN },
194         { 0x6f, 0x95, KEY_YELLOW },
195         { 0x9f, 0x95, KEY_BLUE },
196         { 0xaf, 0x95, KEY_SUBTITLE },
197         { 0x5f, 0x96, KEY_F15 },     /* AD */
198         { 0x6f, 0x96, KEY_TEXT },
199         { 0x9f, 0x96, KEY_MUTE },
200         { 0xaf, 0x96, KEY_REWIND },
201         { 0x5f, 0x99, KEY_STOP },
202         { 0x6f, 0x99, KEY_PLAY },
203         { 0x9f, 0x99, KEY_FASTFORWARD },
204         { 0xaf, 0x99, KEY_F16 },     /* chapter */
205         { 0x5f, 0x9a, KEY_PAUSE },
206         { 0x6f, 0x9a, KEY_PLAY },
207         { 0x9f, 0x9a, KEY_RECORD },
208         { 0xaf, 0x9a, KEY_F17 },     /* picture in picture */
209         { 0x5f, 0xa5, KEY_KPPLUS },  /* zoom in */
210         { 0x6f, 0xa5, KEY_KPMINUS }, /* zoom out */
211         { 0x9f, 0xa5, KEY_F18 },     /* capture */
212         { 0xaf, 0xa5, KEY_F19 },     /* web */
213         { 0x5f, 0xa6, KEY_EMAIL },
214         { 0x6f, 0xa6, KEY_PHONE },
215         { 0x9f, 0xa6, KEY_PC },
216 };
217
218 static int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
219 {
220         int i;
221         u8 key[5];
222         u8 b[4] = { 0 };
223
224         *event = 0;
225         *state = REMOTE_NO_KEY_PRESSED;
226
227         digitv_ctrl_msg(d,USB_READ_REMOTE,0,NULL,0,&key[1],4);
228
229         /* Tell the device we've read the remote. Not sure how necessary
230            this is, but the Nebula SDK does it. */
231         digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0);
232
233         /* if something is inside the buffer, simulate key press */
234         if (key[1] != 0)
235         {
236                   for (i = 0; i < d->props.rc_key_map_size; i++) {
237                         if (d->props.rc_key_map[i].custom == key[1] &&
238                             d->props.rc_key_map[i].data == key[2]) {
239                                 *event = d->props.rc_key_map[i].event;
240                                 *state = REMOTE_KEY_PRESSED;
241                                 return 0;
242                         }
243                 }
244         }
245
246         if (key[0] != 0)
247                 deb_rc("key: %x %x %x %x %x\n",key[0],key[1],key[2],key[3],key[4]);
248         return 0;
249 }
250
251 /* DVB USB Driver stuff */
252 static struct dvb_usb_device_properties digitv_properties;
253
254 static int digitv_probe(struct usb_interface *intf,
255                 const struct usb_device_id *id)
256 {
257         struct dvb_usb_device *d;
258         int ret;
259         if ((ret = dvb_usb_device_init(intf,&digitv_properties,THIS_MODULE,&d)) == 0) {
260                 u8 b[4] = { 0 };
261
262                 if (d != NULL) { /* do that only when the firmware is loaded */
263                         b[0] = 1;
264                         digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0);
265
266                         b[0] = 0;
267                         digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0);
268                 }
269         }
270         return ret;
271 }
272
273 static struct usb_device_id digitv_table [] = {
274                 { USB_DEVICE(USB_VID_ANCHOR, USB_PID_NEBULA_DIGITV) },
275                 { }             /* Terminating entry */
276 };
277 MODULE_DEVICE_TABLE (usb, digitv_table);
278
279 static struct dvb_usb_device_properties digitv_properties = {
280         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
281
282         .usb_ctrl = CYPRESS_FX2,
283         .firmware = "dvb-usb-digitv-02.fw",
284
285         .size_of_priv = sizeof(struct digitv_state),
286
287         .num_adapters = 1,
288         .adapter = {
289                 {
290                         .frontend_attach  = digitv_frontend_attach,
291                         .tuner_attach     = digitv_tuner_attach,
292
293                         /* parameter for the MPEG2-data transfer */
294                         .stream = {
295                                 .type = USB_BULK,
296                                 .count = 7,
297                                 .endpoint = 0x02,
298                                 .u = {
299                                         .bulk = {
300                                                 .buffersize = 4096,
301                                         }
302                                 }
303                         },
304                 }
305         },
306         .identify_state   = digitv_identify_state,
307
308         .rc_interval      = 1000,
309         .rc_key_map       = digitv_rc_keys,
310         .rc_key_map_size  = ARRAY_SIZE(digitv_rc_keys),
311         .rc_query         = digitv_rc_query,
312
313         .i2c_algo         = &digitv_i2c_algo,
314
315         .generic_bulk_ctrl_endpoint = 0x01,
316
317         .num_device_descs = 1,
318         .devices = {
319                 {   "Nebula Electronics uDigiTV DVB-T USB2.0)",
320                         { &digitv_table[0], NULL },
321                         { NULL },
322                 },
323                 { NULL },
324         }
325 };
326
327 static struct usb_driver digitv_driver = {
328         .name           = "dvb_usb_digitv",
329         .probe          = digitv_probe,
330         .disconnect = dvb_usb_device_exit,
331         .id_table       = digitv_table,
332 };
333
334 /* module stuff */
335 static int __init digitv_module_init(void)
336 {
337         int result;
338         if ((result = usb_register(&digitv_driver))) {
339                 err("usb_register failed. Error number %d",result);
340                 return result;
341         }
342
343         return 0;
344 }
345
346 static void __exit digitv_module_exit(void)
347 {
348         /* deregister this driver from the USB subsystem */
349         usb_deregister(&digitv_driver);
350 }
351
352 module_init (digitv_module_init);
353 module_exit (digitv_module_exit);
354
355 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
356 MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0");
357 MODULE_VERSION("1.0-alpha");
358 MODULE_LICENSE("GPL");