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path: root/drivers/media/dvb/dvb-usb/dw2102.c
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Diffstat (limited to 'drivers/media/dvb/dvb-usb/dw2102.c')
-rw-r--r--drivers/media/dvb/dvb-usb/dw2102.c425
1 files changed, 425 insertions, 0 deletions
diff --git a/drivers/media/dvb/dvb-usb/dw2102.c b/drivers/media/dvb/dvb-usb/dw2102.c
new file mode 100644
index 000000000000..a4d898b44e55
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/dw2102.c
@@ -0,0 +1,425 @@
1/* DVB USB framework compliant Linux driver for the DVBWorld DVB-S 2102 Card
2*
3* Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by)
4*
5* This program is free software; you can redistribute it and/or modify it
6* under the terms of the GNU General Public License as published by the
7* Free Software Foundation, version 2.
8*
9* see Documentation/dvb/README.dvb-usb for more information
10*/
11#include <linux/version.h>
12#include "dw2102.h"
13#include "stv0299.h"
14#include "z0194a.h"
15
16#ifndef USB_PID_DW2102
17#define USB_PID_DW2102 0x2102
18#endif
19
20#define DW2102_READ_MSG 0
21#define DW2102_WRITE_MSG 1
22
23#define REG_1F_SYMBOLRATE_BYTE0 0x1f
24#define REG_20_SYMBOLRATE_BYTE1 0x20
25#define REG_21_SYMBOLRATE_BYTE2 0x21
26
27#define DW2102_VOLTAGE_CTRL (0x1800)
28#define DW2102_RC_QUERY (0x1a00)
29
30struct dw2102_state {
31 u32 last_key_pressed;
32};
33struct dw2102_rc_keys {
34 u32 keycode;
35 u32 event;
36};
37
38DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
39
40static int dw2102_op_rw(struct usb_device *dev, u8 request, u16 value,
41 u8 *data, u16 len, int flags)
42{
43 int ret;
44 u8 u8buf[len];
45
46 unsigned int pipe = (flags == DW2102_READ_MSG) ?
47 usb_rcvctrlpipe(dev, 0) : usb_sndctrlpipe(dev, 0);
48 u8 request_type = (flags == DW2102_READ_MSG) ? USB_DIR_IN : USB_DIR_OUT;
49
50 if (flags == DW2102_WRITE_MSG)
51 memcpy(u8buf, data, len);
52 ret = usb_control_msg(dev, pipe, request,
53 request_type | USB_TYPE_VENDOR, value, 0 , u8buf, len, 2000);
54
55 if (flags == DW2102_READ_MSG)
56 memcpy(data, u8buf, len);
57 return ret;
58}
59
60/* I2C */
61
62static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
63 int num)
64{
65struct dvb_usb_device *d = i2c_get_adapdata(adap);
66 int i = 0, ret = 0;
67 u8 buf6[] = {0x2c, 0x05, 0xc0, 0, 0, 0, 0};
68 u8 request;
69 u16 value;
70
71 if (!d)
72 return -ENODEV;
73 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
74 return -EAGAIN;
75
76 switch (num) {
77 case 2:
78 /* read stv0299 register */
79 request = 0xb5;
80 value = msg[0].buf[0];/* register */
81 for (i = 0; i < msg[1].len; i++) {
82 value = value + i;
83 ret = dw2102_op_rw(d->udev, 0xb5,
84 value, buf6, 2, DW2102_READ_MSG);
85 msg[1].buf[i] = buf6[0];
86
87 }
88 break;
89 case 1:
90 switch (msg[0].addr) {
91 case 0x68:
92 /* write to stv0299 register */
93 buf6[0] = 0x2a;
94 buf6[1] = msg[0].buf[0];
95 buf6[2] = msg[0].buf[1];
96 ret = dw2102_op_rw(d->udev, 0xb2,
97 0, buf6, 3, DW2102_WRITE_MSG);
98 break;
99 case 0x60:
100 if (msg[0].flags == 0) {
101 /* write to tuner pll */
102 buf6[0] = 0x2c;
103 buf6[1] = 5;
104 buf6[2] = 0xc0;
105 buf6[3] = msg[0].buf[0];
106 buf6[4] = msg[0].buf[1];
107 buf6[5] = msg[0].buf[2];
108 buf6[6] = msg[0].buf[3];
109 ret = dw2102_op_rw(d->udev, 0xb2,
110 0, buf6, 7, DW2102_WRITE_MSG);
111 } else {
112 /* write to tuner pll */
113 ret = dw2102_op_rw(d->udev, 0xb5,
114 0, buf6, 1, DW2102_READ_MSG);
115 msg[0].buf[0] = buf6[0];
116 }
117 break;
118 case (DW2102_RC_QUERY):
119 ret = dw2102_op_rw(d->udev, 0xb8,
120 0, buf6, 2, DW2102_READ_MSG);
121 msg[0].buf[0] = buf6[0];
122 msg[0].buf[1] = buf6[1];
123 break;
124 case (DW2102_VOLTAGE_CTRL):
125 buf6[0] = 0x30;
126 buf6[1] = msg[0].buf[0];
127 ret = dw2102_op_rw(d->udev, 0xb2,
128 0, buf6, 2, DW2102_WRITE_MSG);
129 break;
130 }
131
132 break;
133 }
134
135 mutex_unlock(&d->i2c_mutex);
136 return num;
137}
138
139static u32 dw2102_i2c_func(struct i2c_adapter *adapter)
140{
141 return I2C_FUNC_I2C;
142}
143
144static struct i2c_algorithm dw2102_i2c_algo = {
145 .master_xfer = dw2102_i2c_transfer,
146 .functionality = dw2102_i2c_func,
147};
148
149static int dw2102_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
150{
151 static u8 command_13v[1] = {0x00};
152 static u8 command_18v[1] = {0x01};
153 struct i2c_msg msg[] = {
154 {.addr = DW2102_VOLTAGE_CTRL, .flags = 0,
155 .buf = command_13v, .len = 1},
156 };
157
158 struct dvb_usb_adapter *udev_adap =
159 (struct dvb_usb_adapter *)(fe->dvb->priv);
160 if (voltage == SEC_VOLTAGE_18)
161 msg[0].buf = command_18v;
162 i2c_transfer(&udev_adap->dev->i2c_adap, msg, 1);
163 return 0;
164}
165
166static int dw2102_frontend_attach(struct dvb_usb_adapter *d)
167{
168 d->fe = dvb_attach(stv0299_attach, &sharp_z0194a_config,
169 &d->dev->i2c_adap);
170 if (d->fe != NULL) {
171 d->fe->ops.set_voltage = dw2102_set_voltage;
172 info("Attached stv0299!\n");
173 return 0;
174 }
175 return -EIO;
176}
177
178static int dw2102_tuner_attach(struct dvb_usb_adapter *adap)
179{
180 dvb_attach(dvb_pll_attach, adap->fe, 0x60,
181 &adap->dev->i2c_adap, DVB_PLL_OPERA1);
182 return 0;
183}
184
185static struct dvb_usb_rc_key dw2102_rc_keys[] = {
186 { 0xf8, 0x0a, KEY_Q }, /*power*/
187 { 0xf8, 0x0c, KEY_M }, /*mute*/
188 { 0xf8, 0x11, KEY_1 },
189 { 0xf8, 0x12, KEY_2 },
190 { 0xf8, 0x13, KEY_3 },
191 { 0xf8, 0x14, KEY_4 },
192 { 0xf8, 0x15, KEY_5 },
193 { 0xf8, 0x16, KEY_6 },
194 { 0xf8, 0x17, KEY_7 },
195 { 0xf8, 0x18, KEY_8 },
196 { 0xf8, 0x19, KEY_9 },
197 { 0xf8, 0x10, KEY_0 },
198 { 0xf8, 0x1c, KEY_PAGEUP }, /*ch+*/
199 { 0xf8, 0x0f, KEY_PAGEDOWN }, /*ch-*/
200 { 0xf8, 0x1a, KEY_O }, /*vol+*/
201 { 0xf8, 0x0e, KEY_Z }, /*vol-*/
202 { 0xf8, 0x04, KEY_R }, /*rec*/
203 { 0xf8, 0x09, KEY_D }, /*fav*/
204 { 0xf8, 0x08, KEY_BACKSPACE }, /*rewind*/
205 { 0xf8, 0x07, KEY_A }, /*fast*/
206 { 0xf8, 0x0b, KEY_P }, /*pause*/
207 { 0xf8, 0x02, KEY_ESC }, /*cancel*/
208 { 0xf8, 0x03, KEY_G }, /*tab*/
209 { 0xf8, 0x00, KEY_UP }, /*up*/
210 { 0xf8, 0x1f, KEY_ENTER }, /*ok*/
211 { 0xf8, 0x01, KEY_DOWN }, /*down*/
212 { 0xf8, 0x05, KEY_C }, /*cap*/
213 { 0xf8, 0x06, KEY_S }, /*stop*/
214 { 0xf8, 0x40, KEY_F }, /*full*/
215 { 0xf8, 0x1e, KEY_W }, /*tvmode*/
216 { 0xf8, 0x1b, KEY_B }, /*recall*/
217
218};
219
220
221
222static int dw2102_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
223{
224 struct dw2102_state *st = d->priv;
225 u8 key[2];
226 struct i2c_msg msg[] = {
227 {.addr = DW2102_RC_QUERY, .flags = I2C_M_RD, .buf = key,
228 .len = 2},
229 };
230 int i;
231
232 *state = REMOTE_NO_KEY_PRESSED;
233 if (dw2102_i2c_transfer(&d->i2c_adap, msg, 1) == 1) {
234 for (i = 0; i < ARRAY_SIZE(dw2102_rc_keys); i++) {
235 if (dw2102_rc_keys[i].data == msg[0].buf[0]) {
236 *state = REMOTE_KEY_PRESSED;
237 *event = dw2102_rc_keys[i].event;
238 st->last_key_pressed =
239 dw2102_rc_keys[i].event;
240 break;
241 }
242 st->last_key_pressed = 0;
243 }
244 }
245 /* info("key: %x %x\n",key[0],key[1]); */
246 return 0;
247}
248
249static struct usb_device_id dw2102_table[] = {
250 {USB_DEVICE(USB_VID_CYPRESS, USB_PID_DW2102)},
251 {USB_DEVICE(USB_VID_CYPRESS, 0x2101)},
252 { }
253};
254
255MODULE_DEVICE_TABLE(usb, dw2102_table);
256
257static int dw2102_load_firmware(struct usb_device *dev,
258 const struct firmware *frmwr)
259{
260 u8 *b, *p;
261 int ret = 0, i;
262 u8 reset;
263 u8 reset16 [] = {0, 0, 0, 0, 0, 0, 0};
264 const struct firmware *fw;
265 const char *filename = "dvb-usb-dw2101.fw";
266 switch (dev->descriptor.idProduct) {
267 case 0x2101:
268 ret = request_firmware(&fw, filename, &dev->dev);
269 if (ret != 0) {
270 err("did not find the firmware file. (%s) "
271 "Please see linux/Documentation/dvb/ for more details "
272 "on firmware-problems.", filename);
273 return ret;
274 }
275 break;
276 case USB_PID_DW2102:
277 fw = frmwr;
278 break;
279 }
280 info("start downloading DW2102 firmware");
281 p = kmalloc(fw->size, GFP_KERNEL);
282 reset = 1;
283 /*stop the CPU*/
284 dw2102_op_rw(dev, 0xa0, 0x7f92, &reset, 1, DW2102_WRITE_MSG);
285 dw2102_op_rw(dev, 0xa0, 0xe600, &reset, 1, DW2102_WRITE_MSG);
286
287 if (p != NULL) {
288 memcpy(p, fw->data, fw->size);
289 for (i = 0; i < fw->size; i += 0x40) {
290 b = (u8 *) p + i;
291 if (dw2102_op_rw
292 (dev, 0xa0, i, b , 0x40,
293 DW2102_WRITE_MSG) != 0x40
294 ) {
295 err("error while transferring firmware");
296 ret = -EINVAL;
297 break;
298 }
299 }
300 /* restart the CPU */
301 reset = 0;
302 if (ret || dw2102_op_rw
303 (dev, 0xa0, 0x7f92, &reset, 1,
304 DW2102_WRITE_MSG) != 1) {
305 err("could not restart the USB controller CPU.");
306 ret = -EINVAL;
307 }
308 if (ret || dw2102_op_rw
309 (dev, 0xa0, 0xe600, &reset, 1,
310 DW2102_WRITE_MSG) != 1) {
311 err("could not restart the USB controller CPU.");
312 ret = -EINVAL;
313 }
314 /* init registers */
315 switch (dev->descriptor.idProduct) {
316 case USB_PID_DW2102:
317 dw2102_op_rw
318 (dev, 0xbf, 0x0040, &reset, 0,
319 DW2102_WRITE_MSG);
320 dw2102_op_rw
321 (dev, 0xb9, 0x0000, &reset16[0], 2,
322 DW2102_READ_MSG);
323 break;
324 case 0x2101:
325 dw2102_op_rw
326 (dev, 0xbc, 0x0030, &reset16[0], 2,
327 DW2102_READ_MSG);
328 dw2102_op_rw
329 (dev, 0xba, 0x0000, &reset16[0], 7,
330 DW2102_READ_MSG);
331 dw2102_op_rw
332 (dev, 0xba, 0x0000, &reset16[0], 7,
333 DW2102_READ_MSG);
334 dw2102_op_rw
335 (dev, 0xb9, 0x0000, &reset16[0], 2,
336 DW2102_READ_MSG);
337 break;
338 }
339 kfree(p);
340 }
341 return ret;
342}
343
344static struct dvb_usb_device_properties dw2102_properties = {
345 .caps = DVB_USB_IS_AN_I2C_ADAPTER,
346 .usb_ctrl = DEVICE_SPECIFIC,
347 .firmware = "dvb-usb-dw2102.fw",
348 .size_of_priv = sizeof(struct dw2102_state),
349 .no_reconnect = 1,
350
351 .i2c_algo = &dw2102_i2c_algo,
352 .rc_key_map = dw2102_rc_keys,
353 .rc_key_map_size = ARRAY_SIZE(dw2102_rc_keys),
354 .rc_interval = 150,
355 .rc_query = dw2102_rc_query,
356
357 .generic_bulk_ctrl_endpoint = 0x81,
358 /* parameter for the MPEG2-data transfer */
359 .num_adapters = 1,
360 .download_firmware = dw2102_load_firmware,
361 .adapter = {
362 {
363 .frontend_attach = dw2102_frontend_attach,
364 .streaming_ctrl = NULL,
365 .tuner_attach = dw2102_tuner_attach,
366 .stream = {
367 .type = USB_BULK,
368 .count = 8,
369 .endpoint = 0x82,
370 .u = {
371 .bulk = {
372 .buffersize = 4096,
373 }
374 }
375 },
376 }
377 },
378 .num_device_descs = 2,
379 .devices = {
380 {"DVBWorld DVB-S 2102 USB2.0",
381 {&dw2102_table[0], NULL},
382 {NULL},
383 },
384 {"DVBWorld DVB-S 2101 USB2.0",
385 {&dw2102_table[1], NULL},
386 {NULL},
387 },
388 }
389};
390
391static int dw2102_probe(struct usb_interface *intf,
392 const struct usb_device_id *id)
393{
394 return dvb_usb_device_init(intf, &dw2102_properties,
395 THIS_MODULE, NULL, adapter_nr);
396}
397
398static struct usb_driver dw2102_driver = {
399 .name = "dw2102",
400 .probe = dw2102_probe,
401 .disconnect = dvb_usb_device_exit,
402 .id_table = dw2102_table,
403};
404
405static int __init dw2102_module_init(void)
406{
407 int ret = usb_register(&dw2102_driver);
408 if (ret)
409 err("usb_register failed. Error number %d", ret);
410
411 return ret;
412}
413
414static void __exit dw2102_module_exit(void)
415{
416 usb_deregister(&dw2102_driver);
417}
418
419module_init(dw2102_module_init);
420module_exit(dw2102_module_exit);
421
422MODULE_AUTHOR("Igor M. Liplianin (c) liplianin@me.by");
423MODULE_DESCRIPTION("Driver for DVBWorld DVB-S 2101 2102 USB2.0 device");
424MODULE_VERSION("0.1");
425MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 10:30:49 -0500