This source file includes following definitions.
- ec168_ctrl_msg
- ec168_i2c_xfer
- ec168_i2c_func
- ec168_identify_state
- ec168_download_firmware
- ec168_ec100_frontend_attach
- ec168_mxl5003s_tuner_attach
- ec168_streaming_ctrl
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8 #include "ec168.h"
9 #include "ec100.h"
10 #include "mxl5005s.h"
11
12 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
13
14 static int ec168_ctrl_msg(struct dvb_usb_device *d, struct ec168_req *req)
15 {
16 int ret;
17 unsigned int pipe;
18 u8 request, requesttype;
19 u8 *buf;
20
21 switch (req->cmd) {
22 case DOWNLOAD_FIRMWARE:
23 case GPIO:
24 case WRITE_I2C:
25 case STREAMING_CTRL:
26 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
27 request = req->cmd;
28 break;
29 case READ_I2C:
30 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
31 request = req->cmd;
32 break;
33 case GET_CONFIG:
34 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
35 request = CONFIG;
36 break;
37 case SET_CONFIG:
38 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
39 request = CONFIG;
40 break;
41 case WRITE_DEMOD:
42 requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
43 request = DEMOD_RW;
44 break;
45 case READ_DEMOD:
46 requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
47 request = DEMOD_RW;
48 break;
49 default:
50 dev_err(&d->udev->dev, "%s: unknown command=%02x\n",
51 KBUILD_MODNAME, req->cmd);
52 ret = -EINVAL;
53 goto error;
54 }
55
56 buf = kmalloc(req->size, GFP_KERNEL);
57 if (!buf) {
58 ret = -ENOMEM;
59 goto error;
60 }
61
62 if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
63
64 memcpy(buf, req->data, req->size);
65 pipe = usb_sndctrlpipe(d->udev, 0);
66 } else {
67
68 pipe = usb_rcvctrlpipe(d->udev, 0);
69 }
70
71 msleep(1);
72
73 ret = usb_control_msg(d->udev, pipe, request, requesttype, req->value,
74 req->index, buf, req->size, EC168_USB_TIMEOUT);
75
76 dvb_usb_dbg_usb_control_msg(d->udev, request, requesttype, req->value,
77 req->index, buf, req->size);
78
79 if (ret < 0)
80 goto err_dealloc;
81 else
82 ret = 0;
83
84
85 if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
86 memcpy(req->data, buf, req->size);
87
88 kfree(buf);
89 return ret;
90
91 err_dealloc:
92 kfree(buf);
93 error:
94 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
95 return ret;
96 }
97
98
99 static struct ec100_config ec168_ec100_config;
100
101 static int ec168_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
102 int num)
103 {
104 struct dvb_usb_device *d = i2c_get_adapdata(adap);
105 struct ec168_req req;
106 int i = 0;
107 int ret;
108
109 if (num > 2)
110 return -EINVAL;
111
112 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
113 return -EAGAIN;
114
115 while (i < num) {
116 if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
117 if (msg[i].addr == ec168_ec100_config.demod_address) {
118 req.cmd = READ_DEMOD;
119 req.value = 0;
120 req.index = 0xff00 + msg[i].buf[0];
121 req.size = msg[i+1].len;
122 req.data = &msg[i+1].buf[0];
123 ret = ec168_ctrl_msg(d, &req);
124 i += 2;
125 } else {
126 dev_err(&d->udev->dev, "%s: I2C read not " \
127 "implemented\n",
128 KBUILD_MODNAME);
129 ret = -EOPNOTSUPP;
130 i += 2;
131 }
132 } else {
133 if (msg[i].addr == ec168_ec100_config.demod_address) {
134 req.cmd = WRITE_DEMOD;
135 req.value = msg[i].buf[1];
136 req.index = 0xff00 + msg[i].buf[0];
137 req.size = 0;
138 req.data = NULL;
139 ret = ec168_ctrl_msg(d, &req);
140 i += 1;
141 } else {
142 req.cmd = WRITE_I2C;
143 req.value = msg[i].buf[0];
144 req.index = 0x0100 + msg[i].addr;
145 req.size = msg[i].len-1;
146 req.data = &msg[i].buf[1];
147 ret = ec168_ctrl_msg(d, &req);
148 i += 1;
149 }
150 }
151 if (ret)
152 goto error;
153
154 }
155 ret = i;
156
157 error:
158 mutex_unlock(&d->i2c_mutex);
159 return ret;
160 }
161
162 static u32 ec168_i2c_func(struct i2c_adapter *adapter)
163 {
164 return I2C_FUNC_I2C;
165 }
166
167 static struct i2c_algorithm ec168_i2c_algo = {
168 .master_xfer = ec168_i2c_xfer,
169 .functionality = ec168_i2c_func,
170 };
171
172
173 static int ec168_identify_state(struct dvb_usb_device *d, const char **name)
174 {
175 int ret;
176 u8 reply;
177 struct ec168_req req = {GET_CONFIG, 0, 1, sizeof(reply), &reply};
178 dev_dbg(&d->udev->dev, "%s:\n", __func__);
179
180 ret = ec168_ctrl_msg(d, &req);
181 if (ret)
182 goto error;
183
184 dev_dbg(&d->udev->dev, "%s: reply=%02x\n", __func__, reply);
185
186 if (reply == 0x01)
187 ret = WARM;
188 else
189 ret = COLD;
190
191 return ret;
192 error:
193 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
194 return ret;
195 }
196
197 static int ec168_download_firmware(struct dvb_usb_device *d,
198 const struct firmware *fw)
199 {
200 int ret, len, remaining;
201 struct ec168_req req = {DOWNLOAD_FIRMWARE, 0, 0, 0, NULL};
202 dev_dbg(&d->udev->dev, "%s:\n", __func__);
203
204 #define LEN_MAX 2048
205 for (remaining = fw->size; remaining > 0; remaining -= LEN_MAX) {
206 len = remaining;
207 if (len > LEN_MAX)
208 len = LEN_MAX;
209
210 req.size = len;
211 req.data = (u8 *) &fw->data[fw->size - remaining];
212 req.index = fw->size - remaining;
213
214 ret = ec168_ctrl_msg(d, &req);
215 if (ret) {
216 dev_err(&d->udev->dev,
217 "%s: firmware download failed=%d\n",
218 KBUILD_MODNAME, ret);
219 goto error;
220 }
221 }
222
223 req.size = 0;
224
225
226 req.cmd = SET_CONFIG;
227 req.value = 0;
228 req.index = 0x0001;
229 ret = ec168_ctrl_msg(d, &req);
230 if (ret)
231 goto error;
232
233
234 req.cmd = GPIO;
235 req.value = 0;
236 req.index = 0x0206;
237 ret = ec168_ctrl_msg(d, &req);
238 if (ret)
239 goto error;
240
241
242 req.cmd = WRITE_I2C;
243 req.value = 0;
244 req.index = 0x00c6;
245 ret = ec168_ctrl_msg(d, &req);
246 if (ret)
247 goto error;
248
249 return ret;
250 error:
251 dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
252 return ret;
253 }
254
255 static struct ec100_config ec168_ec100_config = {
256 .demod_address = 0xff,
257 };
258
259 static int ec168_ec100_frontend_attach(struct dvb_usb_adapter *adap)
260 {
261 struct dvb_usb_device *d = adap_to_d(adap);
262 dev_dbg(&d->udev->dev, "%s:\n", __func__);
263
264 adap->fe[0] = dvb_attach(ec100_attach, &ec168_ec100_config,
265 &d->i2c_adap);
266 if (adap->fe[0] == NULL)
267 return -ENODEV;
268
269 return 0;
270 }
271
272 static struct mxl5005s_config ec168_mxl5003s_config = {
273 .i2c_address = 0xc6,
274 .if_freq = IF_FREQ_4570000HZ,
275 .xtal_freq = CRYSTAL_FREQ_16000000HZ,
276 .agc_mode = MXL_SINGLE_AGC,
277 .tracking_filter = MXL_TF_OFF,
278 .rssi_enable = MXL_RSSI_ENABLE,
279 .cap_select = MXL_CAP_SEL_ENABLE,
280 .div_out = MXL_DIV_OUT_4,
281 .clock_out = MXL_CLOCK_OUT_DISABLE,
282 .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
283 .top = MXL5005S_TOP_25P2,
284 .mod_mode = MXL_DIGITAL_MODE,
285 .if_mode = MXL_ZERO_IF,
286 .AgcMasterByte = 0x00,
287 };
288
289 static int ec168_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
290 {
291 struct dvb_usb_device *d = adap_to_d(adap);
292 dev_dbg(&d->udev->dev, "%s:\n", __func__);
293
294 return dvb_attach(mxl5005s_attach, adap->fe[0], &d->i2c_adap,
295 &ec168_mxl5003s_config) == NULL ? -ENODEV : 0;
296 }
297
298 static int ec168_streaming_ctrl(struct dvb_frontend *fe, int onoff)
299 {
300 struct dvb_usb_device *d = fe_to_d(fe);
301 struct ec168_req req = {STREAMING_CTRL, 0x7f01, 0x0202, 0, NULL};
302 dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
303
304 if (onoff)
305 req.index = 0x0102;
306 return ec168_ctrl_msg(d, &req);
307 }
308
309
310
311
312 static const struct dvb_usb_device_properties ec168_props = {
313 .driver_name = KBUILD_MODNAME,
314 .owner = THIS_MODULE,
315 .adapter_nr = adapter_nr,
316 .bInterfaceNumber = 1,
317
318 .identify_state = ec168_identify_state,
319 .firmware = EC168_FIRMWARE,
320 .download_firmware = ec168_download_firmware,
321
322 .i2c_algo = &ec168_i2c_algo,
323 .frontend_attach = ec168_ec100_frontend_attach,
324 .tuner_attach = ec168_mxl5003s_tuner_attach,
325 .streaming_ctrl = ec168_streaming_ctrl,
326
327 .num_adapters = 1,
328 .adapter = {
329 {
330 .stream = DVB_USB_STREAM_BULK(0x82, 6, 32 * 512),
331 }
332 },
333 };
334
335 static const struct dvb_usb_driver_info ec168_driver_info = {
336 .name = "E3C EC168 reference design",
337 .props = &ec168_props,
338 };
339
340 static const struct usb_device_id ec168_id[] = {
341 { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168),
342 .driver_info = (kernel_ulong_t) &ec168_driver_info },
343 { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_2),
344 .driver_info = (kernel_ulong_t) &ec168_driver_info },
345 { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_3),
346 .driver_info = (kernel_ulong_t) &ec168_driver_info },
347 { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_4),
348 .driver_info = (kernel_ulong_t) &ec168_driver_info },
349 { USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_5),
350 .driver_info = (kernel_ulong_t) &ec168_driver_info },
351 {}
352 };
353 MODULE_DEVICE_TABLE(usb, ec168_id);
354
355 static struct usb_driver ec168_driver = {
356 .name = KBUILD_MODNAME,
357 .id_table = ec168_id,
358 .probe = dvb_usbv2_probe,
359 .disconnect = dvb_usbv2_disconnect,
360 .suspend = dvb_usbv2_suspend,
361 .resume = dvb_usbv2_resume,
362 .no_dynamic_id = 1,
363 .soft_unbind = 1,
364 };
365
366 module_usb_driver(ec168_driver);
367
368 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
369 MODULE_DESCRIPTION("E3C EC168 driver");
370 MODULE_LICENSE("GPL");
371 MODULE_FIRMWARE(EC168_FIRMWARE);