1 /*
2 * DVB USB Linux driver for Intel CE6230 DVB-T USB2.0 receiver
3 *
4 * Copyright (C) 2009 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
22 #include "ce6230.h"
23 #include "zl10353.h"
24 #include "mxl5005s.h"
25
26 /* debug */
27 static int dvb_usb_ce6230_debug;
28 module_param_named(debug, dvb_usb_ce6230_debug, int, 0644);
29 MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
30 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
31
32 static struct zl10353_config ce6230_zl10353_config;
33
ce6230_rw_udev(struct usb_device * udev,struct req_t * req)34 static int ce6230_rw_udev(struct usb_device *udev, struct req_t *req)
35 {
36 int ret;
37 unsigned int pipe;
38 u8 request;
39 u8 requesttype;
40 u16 value;
41 u16 index;
42 u8 *buf;
43
44 request = req->cmd;
45 value = req->value;
46 index = req->index;
47
48 switch (req->cmd) {
49 case I2C_READ:
50 case DEMOD_READ:
51 case REG_READ:
52 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
53 break;
54 case I2C_WRITE:
55 case DEMOD_WRITE:
56 case REG_WRITE:
57 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
58 break;
59 default:
60 err("unknown command:%02x", req->cmd);
61 ret = -EPERM;
62 goto error;
63 }
64
65 buf = kmalloc(req->data_len, GFP_KERNEL);
66 if (!buf) {
67 ret = -ENOMEM;
68 goto error;
69 }
70
71 if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
72 /* write */
73 memcpy(buf, req->data, req->data_len);
74 pipe = usb_sndctrlpipe(udev, 0);
75 } else {
76 /* read */
77 pipe = usb_rcvctrlpipe(udev, 0);
78 }
79
80 msleep(1); /* avoid I2C errors */
81
82 ret = usb_control_msg(udev, pipe, request, requesttype, value, index,
83 buf, req->data_len, CE6230_USB_TIMEOUT);
84
85 ce6230_debug_dump(request, requesttype, value, index, buf,
86 req->data_len, deb_xfer);
87
88 if (ret < 0)
89 deb_info("%s: usb_control_msg failed:%d\n", __func__, ret);
90 else
91 ret = 0;
92
93 /* read request, copy returned data to return buf */
94 if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
95 memcpy(req->data, buf, req->data_len);
96
97 kfree(buf);
98 error:
99 return ret;
100 }
101
ce6230_ctrl_msg(struct dvb_usb_device * d,struct req_t * req)102 static int ce6230_ctrl_msg(struct dvb_usb_device *d, struct req_t *req)
103 {
104 return ce6230_rw_udev(d->udev, req);
105 }
106
107 /* I2C */
ce6230_i2c_xfer(struct i2c_adapter * adap,struct i2c_msg msg[],int num)108 static int ce6230_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
109 int num)
110 {
111 struct dvb_usb_device *d = i2c_get_adapdata(adap);
112 int i = 0;
113 struct req_t req;
114 int ret = 0;
115 memset(&req, 0, sizeof(req));
116
117 if (num > 2)
118 return -EINVAL;
119
120 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
121 return -EAGAIN;
122
123 while (i < num) {
124 if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
125 if (msg[i].addr ==
126 ce6230_zl10353_config.demod_address) {
127 req.cmd = DEMOD_READ;
128 req.value = msg[i].addr >> 1;
129 req.index = msg[i].buf[0];
130 req.data_len = msg[i+1].len;
131 req.data = &msg[i+1].buf[0];
132 ret = ce6230_ctrl_msg(d, &req);
133 } else {
134 err("i2c read not implemented");
135 ret = -EPERM;
136 }
137 i += 2;
138 } else {
139 if (msg[i].addr ==
140 ce6230_zl10353_config.demod_address) {
141 req.cmd = DEMOD_WRITE;
142 req.value = msg[i].addr >> 1;
143 req.index = msg[i].buf[0];
144 req.data_len = msg[i].len-1;
145 req.data = &msg[i].buf[1];
146 ret = ce6230_ctrl_msg(d, &req);
147 } else {
148 req.cmd = I2C_WRITE;
149 req.value = 0x2000 + (msg[i].addr >> 1);
150 req.index = 0x0000;
151 req.data_len = msg[i].len;
152 req.data = &msg[i].buf[0];
153 ret = ce6230_ctrl_msg(d, &req);
154 }
155 i += 1;
156 }
157 if (ret)
158 break;
159 }
160
161 mutex_unlock(&d->i2c_mutex);
162 return ret ? ret : i;
163 }
164
ce6230_i2c_func(struct i2c_adapter * adapter)165 static u32 ce6230_i2c_func(struct i2c_adapter *adapter)
166 {
167 return I2C_FUNC_I2C;
168 }
169
170 static struct i2c_algorithm ce6230_i2c_algo = {
171 .master_xfer = ce6230_i2c_xfer,
172 .functionality = ce6230_i2c_func,
173 };
174
175 /* Callbacks for DVB USB */
176 static struct zl10353_config ce6230_zl10353_config = {
177 .demod_address = 0x1e,
178 .adc_clock = 450000,
179 .if2 = 45700,
180 .no_tuner = 1,
181 .parallel_ts = 1,
182 .clock_ctl_1 = 0x34,
183 .pll_0 = 0x0e,
184 };
185
ce6230_zl10353_frontend_attach(struct dvb_usb_adapter * adap)186 static int ce6230_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
187 {
188 deb_info("%s:\n", __func__);
189 adap->fe_adap[0].fe = dvb_attach(zl10353_attach, &ce6230_zl10353_config,
190 &adap->dev->i2c_adap);
191 if (adap->fe_adap[0].fe == NULL)
192 return -ENODEV;
193 return 0;
194 }
195
196 static struct mxl5005s_config ce6230_mxl5003s_config = {
197 .i2c_address = 0xc6,
198 .if_freq = IF_FREQ_4570000HZ,
199 .xtal_freq = CRYSTAL_FREQ_16000000HZ,
200 .agc_mode = MXL_SINGLE_AGC,
201 .tracking_filter = MXL_TF_DEFAULT,
202 .rssi_enable = MXL_RSSI_ENABLE,
203 .cap_select = MXL_CAP_SEL_ENABLE,
204 .div_out = MXL_DIV_OUT_4,
205 .clock_out = MXL_CLOCK_OUT_DISABLE,
206 .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
207 .top = MXL5005S_TOP_25P2,
208 .mod_mode = MXL_DIGITAL_MODE,
209 .if_mode = MXL_ZERO_IF,
210 .AgcMasterByte = 0x00,
211 };
212
ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter * adap)213 static int ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
214 {
215 int ret;
216 deb_info("%s:\n", __func__);
217 ret = dvb_attach(mxl5005s_attach, adap->fe_adap[0].fe, &adap->dev->i2c_adap,
218 &ce6230_mxl5003s_config) == NULL ? -ENODEV : 0;
219 return ret;
220 }
221
ce6230_power_ctrl(struct dvb_usb_device * d,int onoff)222 static int ce6230_power_ctrl(struct dvb_usb_device *d, int onoff)
223 {
224 int ret;
225 deb_info("%s: onoff:%d\n", __func__, onoff);
226
227 /* InterfaceNumber 1 / AlternateSetting 0 idle
228 InterfaceNumber 1 / AlternateSetting 1 streaming */
229 ret = usb_set_interface(d->udev, 1, onoff);
230 if (ret)
231 err("usb_set_interface failed with error:%d", ret);
232
233 return ret;
234 }
235
236 /* DVB USB Driver stuff */
237 static struct dvb_usb_device_properties ce6230_properties;
238
ce6230_probe(struct usb_interface * intf,const struct usb_device_id * id)239 static int ce6230_probe(struct usb_interface *intf,
240 const struct usb_device_id *id)
241 {
242 int ret = 0;
243 struct dvb_usb_device *d = NULL;
244
245 deb_info("%s: interface:%d\n", __func__,
246 intf->cur_altsetting->desc.bInterfaceNumber);
247
248 if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
249 ret = dvb_usb_device_init(intf, &ce6230_properties, THIS_MODULE,
250 &d, adapter_nr);
251 if (ret)
252 err("init failed with error:%d\n", ret);
253 }
254
255 return ret;
256 }
257
258 static struct usb_device_id ce6230_table[] = {
259 { USB_DEVICE(USB_VID_INTEL, USB_PID_INTEL_CE9500) },
260 { USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A310) },
261 { } /* Terminating entry */
262 };
263 MODULE_DEVICE_TABLE(usb, ce6230_table);
264
265 static struct dvb_usb_device_properties ce6230_properties = {
266 .caps = DVB_USB_IS_AN_I2C_ADAPTER,
267
268 .usb_ctrl = DEVICE_SPECIFIC,
269 .no_reconnect = 1,
270
271 .size_of_priv = 0,
272
273 .num_adapters = 1,
274 .adapter = {
275 {
276 .num_frontends = 1,
277 .fe = {{
278 .frontend_attach = ce6230_zl10353_frontend_attach,
279 .tuner_attach = ce6230_mxl5003s_tuner_attach,
280 .stream = {
281 .type = USB_BULK,
282 .count = 6,
283 .endpoint = 0x82,
284 .u = {
285 .bulk = {
286 .buffersize = (16*512),
287 }
288 }
289 },
290 }},
291 }
292 },
293
294 .power_ctrl = ce6230_power_ctrl,
295
296 .i2c_algo = &ce6230_i2c_algo,
297
298 .num_device_descs = 2,
299 .devices = {
300 {
301 .name = "Intel CE9500 reference design",
302 .cold_ids = {NULL},
303 .warm_ids = {&ce6230_table[0], NULL},
304 },
305 {
306 .name = "AVerMedia A310 USB 2.0 DVB-T tuner",
307 .cold_ids = {NULL},
308 .warm_ids = {&ce6230_table[1], NULL},
309 },
310 }
311 };
312
313 static struct usb_driver ce6230_driver = {
314 .name = "dvb_usb_ce6230",
315 .probe = ce6230_probe,
316 .disconnect = dvb_usb_device_exit,
317 .id_table = ce6230_table,
318 };
319
320 module_usb_driver(ce6230_driver);
321
322 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
323 MODULE_DESCRIPTION("Driver for Intel CE6230 DVB-T USB2.0");
324 MODULE_LICENSE("GPL");
325