aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/dvb/dvb-usb/ce6230.c
blob: 5862820f109fad78f45dd307c3dfb1a94c921b82 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
/*
 * DVB USB Linux driver for Intel CE6230 DVB-T USB2.0 receiver
 *
 * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include "ce6230.h"
#include "zl10353.h"
#include "mxl5005s.h"

/* debug */
static int dvb_usb_ce6230_debug;
module_param_named(debug, dvb_usb_ce6230_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

static struct zl10353_config ce6230_zl10353_config;

static int ce6230_rw_udev(struct usb_device *udev, struct req_t *req)
{
	int ret;
	unsigned int pipe;
	u8 request;
	u8 requesttype;
	u16 value;
	u16 index;
	u8 buf[req->data_len];

	request = req->cmd;
	value = req->value;
	index = req->index;

	switch (req->cmd) {
	case I2C_READ:
	case DEMOD_READ:
	case REG_READ:
		requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
		break;
	case I2C_WRITE:
	case DEMOD_WRITE:
	case REG_WRITE:
		requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
		break;
	default:
		err("unknown command:%02x", req->cmd);
		ret = -EPERM;
		goto error;
	}

	if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
		/* write */
		memcpy(buf, req->data, req->data_len);
		pipe = usb_sndctrlpipe(udev, 0);
	} else {
		/* read */
		pipe = usb_rcvctrlpipe(udev, 0);
	}

	msleep(1); /* avoid I2C errors */

	ret = usb_control_msg(udev, pipe, request, requesttype, value, index,
				buf, sizeof(buf), CE6230_USB_TIMEOUT);

	ce6230_debug_dump(request, requesttype, value, index, buf,
		req->data_len, deb_xfer);

	if (ret < 0)
		deb_info("%s: usb_control_msg failed:%d\n", __func__, ret);
	else
		ret = 0;

	/* read request, copy returned data to return buf */
	if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
		memcpy(req->data, buf, req->data_len);

error:
	return ret;
}

static int ce6230_ctrl_msg(struct dvb_usb_device *d, struct req_t *req)
{
	return ce6230_rw_udev(d->udev, req);
}

/* I2C */
static int ce6230_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
			   int num)
{
	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	int i = 0;
	struct req_t req;
	int ret = 0;
	memset(&req, 0, sizeof(&req));

	if (num > 2)
		return -EINVAL;

	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
		return -EAGAIN;

	while (i < num) {
		if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
			if (msg[i].addr ==
				ce6230_zl10353_config.demod_address) {
				req.cmd = DEMOD_READ;
				req.value = msg[i].addr >> 1;
				req.index = msg[i].buf[0];
				req.data_len = msg[i+1].len;
				req.data = &msg[i+1].buf[0];
				ret = ce6230_ctrl_msg(d, &req);
			} else {
				err("i2c read not implemented");
				ret = -EPERM;
			}
			i += 2;
		} else {
			if (msg[i].addr ==
				ce6230_zl10353_config.demod_address) {
				req.cmd = DEMOD_WRITE;
				req.value = msg[i].addr >> 1;
				req.index = msg[i].buf[0];
				req.data_len = msg[i].len-1;
				req.data = &msg[i].buf[1];
				ret = ce6230_ctrl_msg(d, &req);
			} else {
				req.cmd = I2C_WRITE;
				req.value = 0x2000 + (msg[i].addr >> 1);
				req.index = 0x0000;
				req.data_len = msg[i].len;
				req.data = &msg[i].buf[0];
				ret = ce6230_ctrl_msg(d, &req);
			}
			i += 1;
		}
		if (ret)
			break;
	}

	mutex_unlock(&d->i2c_mutex);
	return ret ? ret : i;
}

static u32 ce6230_i2c_func(struct i2c_adapter *adapter)
{
	return I2C_FUNC_I2C;
}

static struct i2c_algorithm ce6230_i2c_algo = {
	.master_xfer   = ce6230_i2c_xfer,
	.functionality = ce6230_i2c_func,
};

/* Callbacks for DVB USB */
static struct zl10353_config ce6230_zl10353_config = {
	.demod_address = 0x1e,
	.adc_clock = 450000,
	.if2 = 45700,
	.no_tuner = 1,
	.parallel_ts = 1,
	.clock_ctl_1 = 0x34,
	.pll_0 = 0x0e,
};

static int ce6230_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
{
	deb_info("%s:\n", __func__);
	adap->fe = dvb_attach(zl10353_attach, &ce6230_zl10353_config,
		&adap->dev->i2c_adap);
	if (adap->fe == NULL)
		return -ENODEV;
	return 0;
}

static struct mxl5005s_config ce6230_mxl5003s_config = {
	.i2c_address     = 0xc6,
	.if_freq         = IF_FREQ_4570000HZ,
	.xtal_freq       = CRYSTAL_FREQ_16000000HZ,
	.agc_mode        = MXL_SINGLE_AGC,
	.tracking_filter = MXL_TF_DEFAULT,
	.rssi_enable     = MXL_RSSI_ENABLE,
	.cap_select      = MXL_CAP_SEL_ENABLE,
	.div_out         = MXL_DIV_OUT_4,
	.clock_out       = MXL_CLOCK_OUT_DISABLE,
	.output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
	.top		 = MXL5005S_TOP_25P2,
	.mod_mode        = MXL_DIGITAL_MODE,
	.if_mode         = MXL_ZERO_IF,
	.AgcMasterByte   = 0x00,
};

static int ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
{
	int ret;
	deb_info("%s:\n", __func__);
	ret = dvb_attach(mxl5005s_attach, adap->fe, &adap->dev->i2c_adap,
			&ce6230_mxl5003s_config) == NULL ? -ENODEV : 0;
	return ret;
}

static int ce6230_power_ctrl(struct dvb_usb_device *d, int onoff)
{
	int ret;
	deb_info("%s: onoff:%d\n", __func__, onoff);

	/* InterfaceNumber 1 / AlternateSetting 0     idle
	   InterfaceNumber 1 / AlternateSetting 1     streaming */
	ret = usb_set_interface(d->udev, 1, onoff);
	if (ret)
		err("usb_set_interface failed with error:%d", ret);

	return ret;
}

/* DVB USB Driver stuff */
static struct dvb_usb_device_properties ce6230_properties;

static int ce6230_probe(struct usb_interface *intf,
			const struct usb_device_id *id)
{
	int ret = 0;
	struct dvb_usb_device *d = NULL;

	deb_info("%s: interface:%d\n", __func__,
		intf->cur_altsetting->desc.bInterfaceNumber);

	if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
		ret = dvb_usb_device_init(intf, &ce6230_properties, THIS_MODULE,
			&d, adapter_nr);
		if (ret)
			err("init failed with error:%d\n", ret);
	}

	return ret;
}

static struct usb_device_id ce6230_table[] = {
	{ USB_DEVICE(USB_VID_INTEL, USB_PID_INTEL_CE9500) },
	{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, ce6230_table);

static struct dvb_usb_device_properties ce6230_properties = {
	.caps = DVB_USB_IS_AN_I2C_ADAPTER,

	.usb_ctrl = DEVICE_SPECIFIC,
	.no_reconnect = 1,

	.size_of_priv = 0,

	.num_adapters = 1,
	.adapter = {
		{
			.frontend_attach  = ce6230_zl10353_frontend_attach,
			.tuner_attach     = ce6230_mxl5003s_tuner_attach,
			.stream = {
				.type = USB_BULK,
				.count = 6,
				.endpoint = 0x82,
				.u = {
					.bulk = {
						.buffersize = 512,
					}
				}
			},
		}
	},

	.power_ctrl = ce6230_power_ctrl,

	.i2c_algo = &ce6230_i2c_algo,

	.num_device_descs = 1,
	.devices = {
		{
			.name = "Intel CE9500 reference design",
			.cold_ids = {NULL},
			.warm_ids = {&ce6230_table[0], NULL},
		},
	}
};

static struct usb_driver ce6230_driver = {
	.name       = "dvb_usb_ce6230",
	.probe      = ce6230_probe,
	.disconnect = dvb_usb_device_exit,
	.id_table   = ce6230_table,
};

/* module stuff */
static int __init ce6230_module_init(void)
{
	int ret;
	deb_info("%s:\n", __func__);
	ret = usb_register(&ce6230_driver);
	if (ret)
		err("usb_register failed with error:%d", ret);

	return ret;
}

static void __exit ce6230_module_exit(void)
{
	deb_info("%s:\n", __func__);
	/* deregister this driver from the USB subsystem */
	usb_deregister(&ce6230_driver);
}

module_init(ce6230_module_init);
module_exit(ce6230_module_exit);

MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
MODULE_DESCRIPTION("Driver for Intel CE6230 DVB-T USB2.0");
MODULE_LICENSE("GPL");