[PATCH] I2C: Kill i2c_algorithm.name (1/7)
[linux-2.6/pdupreez.git] / drivers / media / dvb / dvb-usb / digitv.c
blob6e4e1e9158e3e8a998df76588fa07280e9ec8e06
1 /* DVB USB compliant linux driver for Nebula Electronics uDigiTV DVB-T USB2.0
2 * receiver
4 * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@desy.de)
6 * partly based on the SDK published by Nebula Electronics
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.
12 * see Documentation/dvb/README.dvb-usb for more information
14 #include "digitv.h"
16 #include "mt352.h"
17 #include "nxt6000.h"
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);
24 static int digitv_ctrl_msg(struct dvb_usb_device *d,
25 u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
27 int wo = (rbuf == NULL || rlen == 0); /* write-only */
28 u8 sndbuf[7],rcvbuf[7];
29 memset(sndbuf,0,7); memset(rcvbuf,0,7);
31 sndbuf[0] = cmd;
32 sndbuf[1] = vv;
33 sndbuf[2] = wo ? wlen : rlen;
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);
42 return 0;
45 /* I2C */
46 static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
48 struct dvb_usb_device *d = i2c_get_adapdata(adap);
49 int i;
51 if (down_interruptible(&d->i2c_sem) < 0)
52 return -EAGAIN;
54 if (num > 2)
55 warn("more than 2 i2c messages at a time is not handled yet. TODO.");
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;
70 up(&d->i2c_sem);
71 return i;
74 static u32 digitv_i2c_func(struct i2c_adapter *adapter)
76 return I2C_FUNC_I2C;
79 static struct i2c_algorithm digitv_i2c_algo = {
80 .id = I2C_ALGO_BIT,
81 .master_xfer = digitv_i2c_xfer,
82 .functionality = digitv_i2c_func,
85 /* Callbacks for DVB USB */
86 static int digitv_identify_state (struct usb_device *udev, struct
87 dvb_usb_properties *props, struct dvb_usb_device_description **desc,
88 int *cold)
90 *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0;
91 return 0;
94 static int digitv_mt352_demod_init(struct dvb_frontend *fe)
96 static u8 reset_buf[] = { 0x89, 0x38, 0x8a, 0x2d, 0x50, 0x80 };
97 static u8 init_buf[] = { 0x68, 0xa0, 0x8e, 0x40, 0x53, 0x50,
98 0x67, 0x20, 0x7d, 0x01, 0x7c, 0x00, 0x7a, 0x00,
99 0x79, 0x20, 0x57, 0x05, 0x56, 0x31, 0x88, 0x0f,
100 0x75, 0x32 };
101 int i;
103 for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2)
104 mt352_write(fe, &reset_buf[i], 2);
106 msleep(1);
108 for (i = 0; i < ARRAY_SIZE(init_buf); i += 2)
109 mt352_write(fe, &init_buf[i], 2);
111 return 0;
114 static struct mt352_config digitv_mt352_config = {
115 .demod_address = 0x0, /* ignored by the digitv anyway */
116 .demod_init = digitv_mt352_demod_init,
117 .pll_set = dvb_usb_pll_set,
120 static struct nxt6000_config digitv_nxt6000_config = {
121 .demod_address = 0x0, /* ignored by the digitv anyway */
122 .clock_inversion = 0x0,
124 .pll_init = NULL,
125 .pll_set = NULL,
128 static int digitv_frontend_attach(struct dvb_usb_device *d)
130 if ((d->fe = mt352_attach(&digitv_mt352_config, &d->i2c_adap)) != NULL)
131 return 0;
132 if ((d->fe = nxt6000_attach(&digitv_nxt6000_config, &d->i2c_adap)) != NULL) {
134 warn("nxt6000 support is not done yet, in fact you are one of the first "
135 "person who wants to use this device in Linux. Please report to "
136 "linux-dvb@linuxtv.org");
138 return 0;
140 return -EIO;
143 static int digitv_tuner_attach(struct dvb_usb_device *d)
145 d->pll_addr = 0x60;
146 d->pll_desc = &dvb_pll_tded4;
147 return 0;
150 static struct dvb_usb_rc_key digitv_rc_keys[] = {
151 { 0x00, 0x16, KEY_POWER }, /* dummy key */
154 /* TODO is it really the NEC protocol ? */
155 int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
157 u8 key[5];
159 digitv_ctrl_msg(d,USB_READ_REMOTE,0,NULL,0,&key[1],4);
160 /* TODO state, maybe it is VV ? */
161 if (key[1] != 0)
162 key[0] = 0x01; /* if something is inside the buffer, simulate key press */
164 /* call the universal NEC remote processor, to find out the key's state and event */
165 dvb_usb_nec_rc_key_to_event(d,key,event,state);
166 if (key[0] != 0)
167 deb_rc("key: %x %x %x %x %x\n",key[0],key[1],key[2],key[3],key[4]);
168 return 0;
171 /* DVB USB Driver stuff */
172 static struct dvb_usb_properties digitv_properties;
174 static int digitv_probe(struct usb_interface *intf,
175 const struct usb_device_id *id)
177 return dvb_usb_device_init(intf,&digitv_properties,THIS_MODULE);
180 static struct usb_device_id digitv_table [] = {
181 { USB_DEVICE(USB_VID_ANCHOR, USB_PID_NEBULA_DIGITV) },
182 { } /* Terminating entry */
184 MODULE_DEVICE_TABLE (usb, digitv_table);
186 static struct dvb_usb_properties digitv_properties = {
187 .caps = DVB_USB_IS_AN_I2C_ADAPTER,
189 .usb_ctrl = CYPRESS_FX2,
190 .firmware = "dvb-usb-digitv-01.fw",
192 .size_of_priv = 0,
194 .frontend_attach = digitv_frontend_attach,
195 .tuner_attach = digitv_tuner_attach,
197 .rc_interval = 1000,
198 .rc_key_map = digitv_rc_keys,
199 .rc_key_map_size = ARRAY_SIZE(digitv_rc_keys),
200 .rc_query = digitv_rc_query,
202 .identify_state = digitv_identify_state,
204 .i2c_algo = &digitv_i2c_algo,
206 .generic_bulk_ctrl_endpoint = 0x01,
207 /* parameter for the MPEG2-data transfer */
208 .urb = {
209 .type = DVB_USB_BULK,
210 .count = 7,
211 .endpoint = 0x02,
212 .u = {
213 .bulk = {
214 .buffersize = 4096,
219 .num_device_descs = 1,
220 .devices = {
221 { "Nebula Electronics uDigiTV DVB-T USB2.0)",
222 { &digitv_table[0], NULL },
223 { NULL },
228 static struct usb_driver digitv_driver = {
229 .owner = THIS_MODULE,
230 .name = "dvb_usb_digitv",
231 .probe = digitv_probe,
232 .disconnect = dvb_usb_device_exit,
233 .id_table = digitv_table,
236 /* module stuff */
237 static int __init digitv_module_init(void)
239 int result;
240 if ((result = usb_register(&digitv_driver))) {
241 err("usb_register failed. Error number %d",result);
242 return result;
245 return 0;
248 static void __exit digitv_module_exit(void)
250 /* deregister this driver from the USB subsystem */
251 usb_deregister(&digitv_driver);
254 module_init (digitv_module_init);
255 module_exit (digitv_module_exit);
257 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
258 MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0");
259 MODULE_VERSION("1.0-alpha");
260 MODULE_LICENSE("GPL");