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
17 #include "au6610.h"
18 #include "zl10353.h"
19 #include "qt1010.h"
20
21 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
22
au6610_usb_msg(struct dvb_usb_device * d,u8 operation,u8 addr,u8 * wbuf,u16 wlen,u8 * rbuf,u16 rlen)23 static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr,
24 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
25 {
26 int ret;
27 u16 index;
28 u8 *usb_buf;
29
30 /*
31 * allocate enough for all known requests,
32 * read returns 5 and write 6 bytes
33 */
34 usb_buf = kmalloc(6, GFP_KERNEL);
35 if (!usb_buf)
36 return -ENOMEM;
37
38 switch (wlen) {
39 case 1:
40 index = wbuf[0] << 8;
41 break;
42 case 2:
43 index = wbuf[0] << 8;
44 index += wbuf[1];
45 break;
46 default:
47 dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n",
48 KBUILD_MODNAME, wlen);
49 ret = -EINVAL;
50 goto error;
51 }
52
53 ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation,
54 USB_TYPE_VENDOR|USB_DIR_IN, addr << 1, index,
55 usb_buf, 6, AU6610_USB_TIMEOUT);
56
57 dvb_usb_dbg_usb_control_msg(d->udev, operation,
58 (USB_TYPE_VENDOR|USB_DIR_IN), addr << 1, index,
59 usb_buf, 6);
60
61 if (ret < 0)
62 goto error;
63
64 switch (operation) {
65 case AU6610_REQ_I2C_READ:
66 case AU6610_REQ_USB_READ:
67 /* requested value is always 5th byte in buffer */
68 rbuf[0] = usb_buf[4];
69 }
70 error:
71 kfree(usb_buf);
72 return ret;
73 }
74
au6610_i2c_msg(struct dvb_usb_device * d,u8 addr,u8 * wbuf,u16 wlen,u8 * rbuf,u16 rlen)75 static int au6610_i2c_msg(struct dvb_usb_device *d, u8 addr,
76 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
77 {
78 u8 request;
79 u8 wo = (rbuf == NULL || rlen == 0); /* write-only */
80
81 if (wo) {
82 request = AU6610_REQ_I2C_WRITE;
83 } else { /* rw */
84 request = AU6610_REQ_I2C_READ;
85 }
86
87 return au6610_usb_msg(d, request, addr, wbuf, wlen, rbuf, rlen);
88 }
89
90
91 /* I2C */
au6610_i2c_xfer(struct i2c_adapter * adap,struct i2c_msg msg[],int num)92 static int au6610_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
93 int num)
94 {
95 struct dvb_usb_device *d = i2c_get_adapdata(adap);
96 int i;
97
98 if (num > 2)
99 return -EINVAL;
100
101 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
102 return -EAGAIN;
103
104 for (i = 0; i < num; i++) {
105 /* write/read request */
106 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
107 if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,
108 msg[i].len, msg[i+1].buf,
109 msg[i+1].len) < 0)
110 break;
111 i++;
112 } else if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,
113 msg[i].len, NULL, 0) < 0)
114 break;
115 }
116
117 mutex_unlock(&d->i2c_mutex);
118 return i;
119 }
120
121
au6610_i2c_func(struct i2c_adapter * adapter)122 static u32 au6610_i2c_func(struct i2c_adapter *adapter)
123 {
124 return I2C_FUNC_I2C;
125 }
126
127 static struct i2c_algorithm au6610_i2c_algo = {
128 .master_xfer = au6610_i2c_xfer,
129 .functionality = au6610_i2c_func,
130 };
131
132 /* Callbacks for DVB USB */
133 static struct zl10353_config au6610_zl10353_config = {
134 .demod_address = 0x0f,
135 .no_tuner = 1,
136 .parallel_ts = 1,
137 };
138
au6610_zl10353_frontend_attach(struct dvb_usb_adapter * adap)139 static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
140 {
141 adap->fe[0] = dvb_attach(zl10353_attach, &au6610_zl10353_config,
142 &adap_to_d(adap)->i2c_adap);
143 if (adap->fe[0] == NULL)
144 return -ENODEV;
145
146 return 0;
147 }
148
149 static struct qt1010_config au6610_qt1010_config = {
150 .i2c_address = 0x62
151 };
152
au6610_qt1010_tuner_attach(struct dvb_usb_adapter * adap)153 static int au6610_qt1010_tuner_attach(struct dvb_usb_adapter *adap)
154 {
155 return dvb_attach(qt1010_attach, adap->fe[0],
156 &adap_to_d(adap)->i2c_adap,
157 &au6610_qt1010_config) == NULL ? -ENODEV : 0;
158 }
159
au6610_init(struct dvb_usb_device * d)160 static int au6610_init(struct dvb_usb_device *d)
161 {
162 /* TODO: this functionality belongs likely to the streaming control */
163 /* bInterfaceNumber 0, bAlternateSetting 5 */
164 return usb_set_interface(d->udev, 0, 5);
165 }
166
167 static struct dvb_usb_device_properties au6610_props = {
168 .driver_name = KBUILD_MODNAME,
169 .owner = THIS_MODULE,
170 .adapter_nr = adapter_nr,
171
172 .i2c_algo = &au6610_i2c_algo,
173 .frontend_attach = au6610_zl10353_frontend_attach,
174 .tuner_attach = au6610_qt1010_tuner_attach,
175 .init = au6610_init,
176
177 .num_adapters = 1,
178 .adapter = {
179 {
180 .stream = DVB_USB_STREAM_ISOC(0x82, 5, 40, 942, 1),
181 },
182 },
183 };
184
185 static const struct usb_device_id au6610_id_table[] = {
186 { DVB_USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110,
187 &au6610_props, "Sigmatek DVB-110", NULL) },
188 { }
189 };
190 MODULE_DEVICE_TABLE(usb, au6610_id_table);
191
192 static struct usb_driver au6610_driver = {
193 .name = KBUILD_MODNAME,
194 .id_table = au6610_id_table,
195 .probe = dvb_usbv2_probe,
196 .disconnect = dvb_usbv2_disconnect,
197 .suspend = dvb_usbv2_suspend,
198 .resume = dvb_usbv2_resume,
199 .reset_resume = dvb_usbv2_reset_resume,
200 .no_dynamic_id = 1,
201 .soft_unbind = 1,
202 };
203
204 module_usb_driver(au6610_driver);
205
206 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
207 MODULE_DESCRIPTION("Driver for Alcor Micro AU6610 DVB-T USB2.0");
208 MODULE_VERSION("0.1");
209 MODULE_LICENSE("GPL");
210