Merge commit 'origin'
[linux-2.6] / drivers / media / dvb / dvb-usb / dtv5100.c
1 /*
2  * DVB USB Linux driver for AME DTV-5100 USB2.0 DVB-T
3  *
4  * Copyright (C) 2008  Antoine Jacquet <royale@zerezo.com>
5  * http://royale.zerezo.com/dtv5100/
6  *
7  * Inspired by gl861.c and au6610.c drivers
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
22  */
23
24 #include "dtv5100.h"
25 #include "zl10353.h"
26 #include "qt1010.h"
27
28 /* debug */
29 static int dvb_usb_dtv5100_debug;
30 module_param_named(debug, dvb_usb_dtv5100_debug, int, 0644);
31 MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
32 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
33
34 static int dtv5100_i2c_msg(struct dvb_usb_device *d, u8 addr,
35                            u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
36 {
37         u8 request;
38         u8 type;
39         u16 value;
40         u16 index;
41
42         switch (wlen) {
43         case 1:
44                 /* write { reg }, read { value } */
45                 request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_READ :
46                                                         DTV5100_TUNER_READ);
47                 type = USB_TYPE_VENDOR | USB_DIR_IN;
48                 value = 0;
49                 break;
50         case 2:
51                 /* write { reg, value } */
52                 request = (addr == DTV5100_DEMOD_ADDR ? DTV5100_DEMOD_WRITE :
53                                                         DTV5100_TUNER_WRITE);
54                 type = USB_TYPE_VENDOR | USB_DIR_OUT;
55                 value = wbuf[1];
56                 break;
57         default:
58                 warn("wlen = %x, aborting.", wlen);
59                 return -EINVAL;
60         }
61         index = (addr << 8) + wbuf[0];
62
63         msleep(1); /* avoid I2C errors */
64         return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), request,
65                                type, value, index, rbuf, rlen,
66                                DTV5100_USB_TIMEOUT);
67 }
68
69 /* I2C */
70 static int dtv5100_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
71                             int num)
72 {
73         struct dvb_usb_device *d = i2c_get_adapdata(adap);
74         int i;
75
76         if (num > 2)
77                 return -EINVAL;
78
79         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
80                 return -EAGAIN;
81
82         for (i = 0; i < num; i++) {
83                 /* write/read request */
84                 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
85                         if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf,
86                                             msg[i].len, msg[i+1].buf,
87                                             msg[i+1].len) < 0)
88                                 break;
89                         i++;
90                 } else if (dtv5100_i2c_msg(d, msg[i].addr, msg[i].buf,
91                                            msg[i].len, NULL, 0) < 0)
92                                 break;
93         }
94
95         mutex_unlock(&d->i2c_mutex);
96         return i;
97 }
98
99 static u32 dtv5100_i2c_func(struct i2c_adapter *adapter)
100 {
101         return I2C_FUNC_I2C;
102 }
103
104 static struct i2c_algorithm dtv5100_i2c_algo = {
105         .master_xfer   = dtv5100_i2c_xfer,
106         .functionality = dtv5100_i2c_func,
107 };
108
109 /* Callbacks for DVB USB */
110 static struct zl10353_config dtv5100_zl10353_config = {
111         .demod_address = DTV5100_DEMOD_ADDR,
112         .no_tuner = 1,
113         .parallel_ts = 1,
114 };
115
116 static int dtv5100_frontend_attach(struct dvb_usb_adapter *adap)
117 {
118         adap->fe = dvb_attach(zl10353_attach, &dtv5100_zl10353_config,
119                               &adap->dev->i2c_adap);
120         if (adap->fe == NULL)
121                 return -EIO;
122
123         /* disable i2c gate, or it won't work... is this safe? */
124         adap->fe->ops.i2c_gate_ctrl = NULL;
125
126         return 0;
127 }
128
129 static struct qt1010_config dtv5100_qt1010_config = {
130         .i2c_address = DTV5100_TUNER_ADDR
131 };
132
133 static int dtv5100_tuner_attach(struct dvb_usb_adapter *adap)
134 {
135         return dvb_attach(qt1010_attach,
136                           adap->fe, &adap->dev->i2c_adap,
137                           &dtv5100_qt1010_config) == NULL ? -ENODEV : 0;
138 }
139
140 /* DVB USB Driver stuff */
141 static struct dvb_usb_device_properties dtv5100_properties;
142
143 static int dtv5100_probe(struct usb_interface *intf,
144                          const struct usb_device_id *id)
145 {
146         int i, ret;
147         struct usb_device *udev = interface_to_usbdev(intf);
148
149         /* initialize non qt1010/zl10353 part? */
150         for (i = 0; dtv5100_init[i].request; i++) {
151                 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
152                                       dtv5100_init[i].request,
153                                       USB_TYPE_VENDOR | USB_DIR_OUT,
154                                       dtv5100_init[i].value,
155                                       dtv5100_init[i].index, NULL, 0,
156                                       DTV5100_USB_TIMEOUT);
157                 if (ret)
158                         return ret;
159         }
160
161         ret = dvb_usb_device_init(intf, &dtv5100_properties,
162                                   THIS_MODULE, NULL, adapter_nr);
163         if (ret)
164                 return ret;
165
166         return 0;
167 }
168
169 static struct usb_device_id dtv5100_table[] = {
170         { USB_DEVICE(0x06be, 0xa232) },
171         { }             /* Terminating entry */
172 };
173 MODULE_DEVICE_TABLE(usb, dtv5100_table);
174
175 static struct dvb_usb_device_properties dtv5100_properties = {
176         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
177         .usb_ctrl = DEVICE_SPECIFIC,
178
179         .size_of_priv = 0,
180
181         .num_adapters = 1,
182         .adapter = {{
183                 .frontend_attach = dtv5100_frontend_attach,
184                 .tuner_attach    = dtv5100_tuner_attach,
185
186                 .stream = {
187                         .type = USB_BULK,
188                         .count = 8,
189                         .endpoint = 0x82,
190                         .u = {
191                                 .bulk = {
192                                         .buffersize = 4096,
193                                 }
194                         }
195                 },
196         } },
197
198         .i2c_algo = &dtv5100_i2c_algo,
199
200         .num_device_descs = 1,
201         .devices = {
202                 {
203                         .name = "AME DTV-5100 USB2.0 DVB-T",
204                         .cold_ids = { NULL },
205                         .warm_ids = { &dtv5100_table[0], NULL },
206                 },
207         }
208 };
209
210 static struct usb_driver dtv5100_driver = {
211         .name           = "dvb_usb_dtv5100",
212         .probe          = dtv5100_probe,
213         .disconnect     = dvb_usb_device_exit,
214         .id_table       = dtv5100_table,
215 };
216
217 /* module stuff */
218 static int __init dtv5100_module_init(void)
219 {
220         int ret;
221
222         ret = usb_register(&dtv5100_driver);
223         if (ret)
224                 err("usb_register failed. Error number %d", ret);
225
226         return ret;
227 }
228
229 static void __exit dtv5100_module_exit(void)
230 {
231         /* deregister this driver from the USB subsystem */
232         usb_deregister(&dtv5100_driver);
233 }
234
235 module_init(dtv5100_module_init);
236 module_exit(dtv5100_module_exit);
237
238 MODULE_AUTHOR(DRIVER_AUTHOR);
239 MODULE_DESCRIPTION(DRIVER_DESC);
240 MODULE_LICENSE("GPL");