diff options
author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
---|---|---|
committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /drivers/media/dvb/dvb-usb/au6610.c | |
parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) |
Diffstat (limited to 'drivers/media/dvb/dvb-usb/au6610.c')
-rw-r--r-- | drivers/media/dvb/dvb-usb/au6610.c | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-usb/au6610.c b/drivers/media/dvb/dvb-usb/au6610.c new file mode 100644 index 00000000000..2351077ff2b --- /dev/null +++ b/drivers/media/dvb/dvb-usb/au6610.c | |||
@@ -0,0 +1,268 @@ | |||
1 | /* | ||
2 | * DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0. | ||
3 | * | ||
4 | * Copyright (C) 2006 Antti Palosaari <crope@iki.fi> | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with this program; if not, write to the Free Software | ||
18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
19 | */ | ||
20 | |||
21 | #include "au6610.h" | ||
22 | #include "zl10353.h" | ||
23 | #include "qt1010.h" | ||
24 | |||
25 | /* debug */ | ||
26 | static int dvb_usb_au6610_debug; | ||
27 | module_param_named(debug, dvb_usb_au6610_debug, int, 0644); | ||
28 | MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS); | ||
29 | DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); | ||
30 | |||
31 | static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr, | ||
32 | u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) | ||
33 | { | ||
34 | int ret; | ||
35 | u16 index; | ||
36 | u8 *usb_buf; | ||
37 | |||
38 | /* | ||
39 | * allocate enough for all known requests, | ||
40 | * read returns 5 and write 6 bytes | ||
41 | */ | ||
42 | usb_buf = kmalloc(6, GFP_KERNEL); | ||
43 | if (!usb_buf) | ||
44 | return -ENOMEM; | ||
45 | |||
46 | switch (wlen) { | ||
47 | case 1: | ||
48 | index = wbuf[0] << 8; | ||
49 | break; | ||
50 | case 2: | ||
51 | index = wbuf[0] << 8; | ||
52 | index += wbuf[1]; | ||
53 | break; | ||
54 | default: | ||
55 | warn("wlen = %x, aborting.", wlen); | ||
56 | ret = -EINVAL; | ||
57 | goto error; | ||
58 | } | ||
59 | |||
60 | ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation, | ||
61 | USB_TYPE_VENDOR|USB_DIR_IN, addr << 1, index, | ||
62 | usb_buf, 6, AU6610_USB_TIMEOUT); | ||
63 | if (ret < 0) | ||
64 | goto error; | ||
65 | |||
66 | switch (operation) { | ||
67 | case AU6610_REQ_I2C_READ: | ||
68 | case AU6610_REQ_USB_READ: | ||
69 | /* requested value is always 5th byte in buffer */ | ||
70 | rbuf[0] = usb_buf[4]; | ||
71 | } | ||
72 | error: | ||
73 | kfree(usb_buf); | ||
74 | return ret; | ||
75 | } | ||
76 | |||
77 | static int au6610_i2c_msg(struct dvb_usb_device *d, u8 addr, | ||
78 | u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) | ||
79 | { | ||
80 | u8 request; | ||
81 | u8 wo = (rbuf == NULL || rlen == 0); /* write-only */ | ||
82 | |||
83 | if (wo) { | ||
84 | request = AU6610_REQ_I2C_WRITE; | ||
85 | } else { /* rw */ | ||
86 | request = AU6610_REQ_I2C_READ; | ||
87 | } | ||
88 | |||
89 | return au6610_usb_msg(d, request, addr, wbuf, wlen, rbuf, rlen); | ||
90 | } | ||
91 | |||
92 | |||
93 | /* I2C */ | ||
94 | static int au6610_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], | ||
95 | int num) | ||
96 | { | ||
97 | struct dvb_usb_device *d = i2c_get_adapdata(adap); | ||
98 | int i; | ||
99 | |||
100 | if (num > 2) | ||
101 | return -EINVAL; | ||
102 | |||
103 | if (mutex_lock_interruptible(&d->i2c_mutex) < 0) | ||
104 | return -EAGAIN; | ||
105 | |||
106 | for (i = 0; i < num; i++) { | ||
107 | /* write/read request */ | ||
108 | if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) { | ||
109 | if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf, | ||
110 | msg[i].len, msg[i+1].buf, | ||
111 | msg[i+1].len) < 0) | ||
112 | break; | ||
113 | i++; | ||
114 | } else if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf, | ||
115 | msg[i].len, NULL, 0) < 0) | ||
116 | break; | ||
117 | } | ||
118 | |||
119 | mutex_unlock(&d->i2c_mutex); | ||
120 | return i; | ||
121 | } | ||
122 | |||
123 | |||
124 | static u32 au6610_i2c_func(struct i2c_adapter *adapter) | ||
125 | { | ||
126 | return I2C_FUNC_I2C; | ||
127 | } | ||
128 | |||
129 | static struct i2c_algorithm au6610_i2c_algo = { | ||
130 | .master_xfer = au6610_i2c_xfer, | ||
131 | .functionality = au6610_i2c_func, | ||
132 | }; | ||
133 | |||
134 | /* Callbacks for DVB USB */ | ||
135 | static struct zl10353_config au6610_zl10353_config = { | ||
136 | .demod_address = 0x0f, | ||
137 | .no_tuner = 1, | ||
138 | .parallel_ts = 1, | ||
139 | }; | ||
140 | |||
141 | static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap) | ||
142 | { | ||
143 | adap->fe = dvb_attach(zl10353_attach, &au6610_zl10353_config, | ||
144 | &adap->dev->i2c_adap); | ||
145 | if (adap->fe == NULL) | ||
146 | return -ENODEV; | ||
147 | |||
148 | return 0; | ||
149 | } | ||
150 | |||
151 | static struct qt1010_config au6610_qt1010_config = { | ||
152 | .i2c_address = 0x62 | ||
153 | }; | ||
154 | |||
155 | static int au6610_qt1010_tuner_attach(struct dvb_usb_adapter *adap) | ||
156 | { | ||
157 | return dvb_attach(qt1010_attach, | ||
158 | adap->fe, &adap->dev->i2c_adap, | ||
159 | &au6610_qt1010_config) == NULL ? -ENODEV : 0; | ||
160 | } | ||
161 | |||
162 | /* DVB USB Driver stuff */ | ||
163 | static struct dvb_usb_device_properties au6610_properties; | ||
164 | |||
165 | static int au6610_probe(struct usb_interface *intf, | ||
166 | const struct usb_device_id *id) | ||
167 | { | ||
168 | struct dvb_usb_device *d; | ||
169 | struct usb_host_interface *alt; | ||
170 | int ret; | ||
171 | |||
172 | if (intf->num_altsetting < AU6610_ALTSETTING_COUNT) | ||
173 | return -ENODEV; | ||
174 | |||
175 | ret = dvb_usb_device_init(intf, &au6610_properties, THIS_MODULE, &d, | ||
176 | adapter_nr); | ||
177 | if (ret == 0) { | ||
178 | alt = usb_altnum_to_altsetting(intf, AU6610_ALTSETTING); | ||
179 | |||
180 | if (alt == NULL) { | ||
181 | deb_info("%s: no alt found!\n", __func__); | ||
182 | return -ENODEV; | ||
183 | } | ||
184 | ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber, | ||
185 | alt->desc.bAlternateSetting); | ||
186 | } | ||
187 | |||
188 | return ret; | ||
189 | } | ||
190 | |||
191 | static struct usb_device_id au6610_table [] = { | ||
192 | { USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110) }, | ||
193 | { } /* Terminating entry */ | ||
194 | }; | ||
195 | MODULE_DEVICE_TABLE(usb, au6610_table); | ||
196 | |||
197 | static struct dvb_usb_device_properties au6610_properties = { | ||
198 | .caps = DVB_USB_IS_AN_I2C_ADAPTER, | ||
199 | |||
200 | .usb_ctrl = DEVICE_SPECIFIC, | ||
201 | |||
202 | .size_of_priv = 0, | ||
203 | |||
204 | .num_adapters = 1, | ||
205 | .adapter = { | ||
206 | { | ||
207 | .frontend_attach = au6610_zl10353_frontend_attach, | ||
208 | .tuner_attach = au6610_qt1010_tuner_attach, | ||
209 | |||
210 | .stream = { | ||
211 | .type = USB_ISOC, | ||
212 | .count = 5, | ||
213 | .endpoint = 0x82, | ||
214 | .u = { | ||
215 | .isoc = { | ||
216 | .framesperurb = 40, | ||
217 | .framesize = 942, | ||
218 | .interval = 1, | ||
219 | } | ||
220 | } | ||
221 | }, | ||
222 | } | ||
223 | }, | ||
224 | |||
225 | .i2c_algo = &au6610_i2c_algo, | ||
226 | |||
227 | .num_device_descs = 1, | ||
228 | .devices = { | ||
229 | { | ||
230 | .name = "Sigmatek DVB-110 DVB-T USB2.0", | ||
231 | .cold_ids = {NULL}, | ||
232 | .warm_ids = {&au6610_table[0], NULL}, | ||
233 | }, | ||
234 | } | ||
235 | }; | ||
236 | |||
237 | static struct usb_driver au6610_driver = { | ||
238 | .name = "dvb_usb_au6610", | ||
239 | .probe = au6610_probe, | ||
240 | .disconnect = dvb_usb_device_exit, | ||
241 | .id_table = au6610_table, | ||
242 | }; | ||
243 | |||
244 | /* module stuff */ | ||
245 | static int __init au6610_module_init(void) | ||
246 | { | ||
247 | int ret; | ||
248 | |||
249 | ret = usb_register(&au6610_driver); | ||
250 | if (ret) | ||
251 | err("usb_register failed. Error number %d", ret); | ||
252 | |||
253 | return ret; | ||
254 | } | ||
255 | |||
256 | static void __exit au6610_module_exit(void) | ||
257 | { | ||
258 | /* deregister this driver from the USB subsystem */ | ||
259 | usb_deregister(&au6610_driver); | ||
260 | } | ||
261 | |||
262 | module_init(au6610_module_init); | ||
263 | module_exit(au6610_module_exit); | ||
264 | |||
265 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); | ||
266 | MODULE_DESCRIPTION("Driver for Alcor Micro AU6610 DVB-T USB2.0"); | ||
267 | MODULE_VERSION("0.1"); | ||
268 | MODULE_LICENSE("GPL"); | ||