diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/media/dvb/frontends/or51132.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/media/dvb/frontends/or51132.c')
-rw-r--r-- | drivers/media/dvb/frontends/or51132.c | 628 |
1 files changed, 628 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/or51132.c b/drivers/media/dvb/frontends/or51132.c new file mode 100644 index 000000000000..df5dee7760a3 --- /dev/null +++ b/drivers/media/dvb/frontends/or51132.c | |||
@@ -0,0 +1,628 @@ | |||
1 | /* | ||
2 | * Support for OR51132 (pcHDTV HD-3000) - VSB/QAM | ||
3 | * | ||
4 | * Copyright (C) 2005 Kirk Lapray <kirk_lapray@bigfoot.com> | ||
5 | * | ||
6 | * Based on code from Jack Kelliher (kelliher@xmission.com) | ||
7 | * Copyright (C) 2002 & pcHDTV, inc. | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify | ||
10 | * it under the terms of the GNU General Public License as published by | ||
11 | * the Free Software Foundation; either version 2 of the License, or | ||
12 | * (at your option) any later version. | ||
13 | * | ||
14 | * This program is distributed in the hope that it will be useful, | ||
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
17 | * GNU General Public License for more details. | ||
18 | * | ||
19 | * You should have received a copy of the GNU General Public License | ||
20 | * along with this program; if not, write to the Free Software | ||
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
22 | * | ||
23 | */ | ||
24 | |||
25 | /* | ||
26 | * This driver needs two external firmware files. Please copy | ||
27 | * "dvb-fe-or51132-vsb.fw" and "dvb-fe-or51132-qam.fw" to | ||
28 | * /usr/lib/hotplug/firmware/ or /lib/firmware/ | ||
29 | * (depending on configuration of firmware hotplug). | ||
30 | */ | ||
31 | #define OR51132_VSB_FIRMWARE "dvb-fe-or51132-vsb.fw" | ||
32 | #define OR51132_QAM_FIRMWARE "dvb-fe-or51132-qam.fw" | ||
33 | |||
34 | #include <linux/kernel.h> | ||
35 | #include <linux/module.h> | ||
36 | #include <linux/moduleparam.h> | ||
37 | #include <linux/init.h> | ||
38 | #include <linux/delay.h> | ||
39 | #include <asm/byteorder.h> | ||
40 | |||
41 | #include "dvb_frontend.h" | ||
42 | #include "dvb-pll.h" | ||
43 | #include "or51132.h" | ||
44 | |||
45 | static int debug; | ||
46 | #define dprintk(args...) \ | ||
47 | do { \ | ||
48 | if (debug) printk(KERN_DEBUG "or51132: " args); \ | ||
49 | } while (0) | ||
50 | |||
51 | |||
52 | struct or51132_state | ||
53 | { | ||
54 | struct i2c_adapter* i2c; | ||
55 | struct dvb_frontend_ops ops; | ||
56 | |||
57 | /* Configuration settings */ | ||
58 | const struct or51132_config* config; | ||
59 | |||
60 | struct dvb_frontend frontend; | ||
61 | |||
62 | /* Demodulator private data */ | ||
63 | fe_modulation_t current_modulation; | ||
64 | |||
65 | /* Tuner private data */ | ||
66 | u32 current_frequency; | ||
67 | }; | ||
68 | |||
69 | static int i2c_writebytes (struct or51132_state* state, u8 reg, u8 *buf, int len) | ||
70 | { | ||
71 | int err; | ||
72 | struct i2c_msg msg; | ||
73 | msg.addr = reg; | ||
74 | msg.flags = 0; | ||
75 | msg.len = len; | ||
76 | msg.buf = buf; | ||
77 | |||
78 | if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { | ||
79 | printk(KERN_WARNING "or51132: i2c_writebytes error (addr %02x, err == %i)\n", reg, err); | ||
80 | return -EREMOTEIO; | ||
81 | } | ||
82 | |||
83 | return 0; | ||
84 | } | ||
85 | |||
86 | static u8 i2c_readbytes (struct or51132_state* state, u8 reg, u8* buf, int len) | ||
87 | { | ||
88 | int err; | ||
89 | struct i2c_msg msg; | ||
90 | msg.addr = reg; | ||
91 | msg.flags = I2C_M_RD; | ||
92 | msg.len = len; | ||
93 | msg.buf = buf; | ||
94 | |||
95 | if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { | ||
96 | printk(KERN_WARNING "or51132: i2c_readbytes error (addr %02x, err == %i)\n", reg, err); | ||
97 | return -EREMOTEIO; | ||
98 | } | ||
99 | |||
100 | return 0; | ||
101 | } | ||
102 | |||
103 | static int or51132_load_firmware (struct dvb_frontend* fe, const struct firmware *fw) | ||
104 | { | ||
105 | struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv; | ||
106 | static u8 run_buf[] = {0x7F,0x01}; | ||
107 | static u8 get_ver_buf[] = {0x04,0x00,0x30,0x00,0x00}; | ||
108 | u8 rec_buf[14]; | ||
109 | u8 cmd_buf[14]; | ||
110 | u32 firmwareAsize, firmwareBsize; | ||
111 | int i,ret; | ||
112 | |||
113 | dprintk("Firmware is %Zd bytes\n",fw->size); | ||
114 | |||
115 | /* Get size of firmware A and B */ | ||
116 | firmwareAsize = le32_to_cpu(*((u32*)fw->data)); | ||
117 | dprintk("FirmwareA is %i bytes\n",firmwareAsize); | ||
118 | firmwareBsize = le32_to_cpu(*((u32*)(fw->data+4))); | ||
119 | dprintk("FirmwareB is %i bytes\n",firmwareBsize); | ||
120 | |||
121 | /* Upload firmware */ | ||
122 | if ((ret = i2c_writebytes(state,state->config->demod_address, | ||
123 | &fw->data[8],firmwareAsize))) { | ||
124 | printk(KERN_WARNING "or51132: load_firmware error 1\n"); | ||
125 | return ret; | ||
126 | } | ||
127 | msleep(1); /* 1ms */ | ||
128 | if ((ret = i2c_writebytes(state,state->config->demod_address, | ||
129 | &fw->data[8+firmwareAsize],firmwareBsize))) { | ||
130 | printk(KERN_WARNING "or51132: load_firmware error 2\n"); | ||
131 | return ret; | ||
132 | } | ||
133 | msleep(1); /* 1ms */ | ||
134 | |||
135 | if ((ret = i2c_writebytes(state,state->config->demod_address, | ||
136 | run_buf,2))) { | ||
137 | printk(KERN_WARNING "or51132: load_firmware error 3\n"); | ||
138 | return ret; | ||
139 | } | ||
140 | |||
141 | /* Wait at least 5 msec */ | ||
142 | msleep(20); /* 10ms */ | ||
143 | |||
144 | if ((ret = i2c_writebytes(state,state->config->demod_address, | ||
145 | run_buf,2))) { | ||
146 | printk(KERN_WARNING "or51132: load_firmware error 4\n"); | ||
147 | return ret; | ||
148 | } | ||
149 | |||
150 | /* 50ms for operation to begin */ | ||
151 | msleep(50); | ||
152 | |||
153 | /* Read back ucode version to besure we loaded correctly and are really up and running */ | ||
154 | /* Get uCode version */ | ||
155 | cmd_buf[0] = 0x10; | ||
156 | cmd_buf[1] = 0x10; | ||
157 | cmd_buf[2] = 0x00; | ||
158 | cmd_buf[3] = 0x00; | ||
159 | msleep(20); /* 20ms */ | ||
160 | if ((ret = i2c_writebytes(state,state->config->demod_address, | ||
161 | cmd_buf,3))) { | ||
162 | printk(KERN_WARNING "or51132: load_firmware error a\n"); | ||
163 | return ret; | ||
164 | } | ||
165 | |||
166 | cmd_buf[0] = 0x04; | ||
167 | cmd_buf[1] = 0x17; | ||
168 | cmd_buf[2] = 0x00; | ||
169 | cmd_buf[3] = 0x00; | ||
170 | msleep(20); /* 20ms */ | ||
171 | if ((ret = i2c_writebytes(state,state->config->demod_address, | ||
172 | cmd_buf,2))) { | ||
173 | printk(KERN_WARNING "or51132: load_firmware error b\n"); | ||
174 | return ret; | ||
175 | } | ||
176 | |||
177 | cmd_buf[0] = 0x00; | ||
178 | cmd_buf[1] = 0x00; | ||
179 | cmd_buf[2] = 0x00; | ||
180 | cmd_buf[3] = 0x00; | ||
181 | msleep(20); /* 20ms */ | ||
182 | if ((ret = i2c_writebytes(state,state->config->demod_address, | ||
183 | cmd_buf,2))) { | ||
184 | printk(KERN_WARNING "or51132: load_firmware error c\n"); | ||
185 | return ret; | ||
186 | } | ||
187 | |||
188 | for(i=0;i<4;i++) { | ||
189 | msleep(20); /* 20ms */ | ||
190 | get_ver_buf[4] = i+1; | ||
191 | if ((ret = i2c_readbytes(state,state->config->demod_address, | ||
192 | &rec_buf[i*2],2))) { | ||
193 | printk(KERN_WARNING | ||
194 | "or51132: load_firmware error d - %d\n",i); | ||
195 | return ret; | ||
196 | } | ||
197 | } | ||
198 | |||
199 | printk(KERN_WARNING | ||
200 | "or51132: Version: %02X%02X%02X%02X-%02X%02X%02X%02X (%02X%01X-%01X-%02X%01X-%01X)\n", | ||
201 | rec_buf[1],rec_buf[0],rec_buf[3],rec_buf[2], | ||
202 | rec_buf[5],rec_buf[4],rec_buf[7],rec_buf[6], | ||
203 | rec_buf[3],rec_buf[2]>>4,rec_buf[2]&0x0f, | ||
204 | rec_buf[5],rec_buf[4]>>4,rec_buf[4]&0x0f); | ||
205 | |||
206 | cmd_buf[0] = 0x10; | ||
207 | cmd_buf[1] = 0x00; | ||
208 | cmd_buf[2] = 0x00; | ||
209 | cmd_buf[3] = 0x00; | ||
210 | msleep(20); /* 20ms */ | ||
211 | if ((ret = i2c_writebytes(state,state->config->demod_address, | ||
212 | cmd_buf,3))) { | ||
213 | printk(KERN_WARNING "or51132: load_firmware error e\n"); | ||
214 | return ret; | ||
215 | } | ||
216 | return 0; | ||
217 | }; | ||
218 | |||
219 | static int or51132_init(struct dvb_frontend* fe) | ||
220 | { | ||
221 | return 0; | ||
222 | } | ||
223 | |||
224 | static int or51132_read_ber(struct dvb_frontend* fe, u32* ber) | ||
225 | { | ||
226 | *ber = 0; | ||
227 | return 0; | ||
228 | } | ||
229 | |||
230 | static int or51132_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) | ||
231 | { | ||
232 | *ucblocks = 0; | ||
233 | return 0; | ||
234 | } | ||
235 | |||
236 | static int or51132_sleep(struct dvb_frontend* fe) | ||
237 | { | ||
238 | return 0; | ||
239 | } | ||
240 | |||
241 | static int or51132_setmode(struct dvb_frontend* fe) | ||
242 | { | ||
243 | struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv; | ||
244 | unsigned char cmd_buf[4]; | ||
245 | |||
246 | dprintk("setmode %d\n",(int)state->current_modulation); | ||
247 | /* set operation mode in Receiver 1 register; */ | ||
248 | cmd_buf[0] = 0x04; | ||
249 | cmd_buf[1] = 0x01; | ||
250 | switch (state->current_modulation) { | ||
251 | case QAM_256: | ||
252 | case QAM_64: | ||
253 | case QAM_AUTO: | ||
254 | /* Auto-deinterleave; MPEG ser, MPEG2tr, phase noise-high*/ | ||
255 | cmd_buf[2] = 0x5F; | ||
256 | break; | ||
257 | case VSB_8: | ||
258 | /* Auto CH, Auto NTSC rej, MPEGser, MPEG2tr, phase noise-high*/ | ||
259 | cmd_buf[2] = 0x50; | ||
260 | break; | ||
261 | default: | ||
262 | printk("setmode:Modulation set to unsupported value\n"); | ||
263 | }; | ||
264 | cmd_buf[3] = 0x00; | ||
265 | if (i2c_writebytes(state,state->config->demod_address, | ||
266 | cmd_buf,3)) { | ||
267 | printk(KERN_WARNING "or51132: set_mode error 1\n"); | ||
268 | return -1; | ||
269 | } | ||
270 | dprintk("or51132: set #1 to %02x\n", cmd_buf[2]); | ||
271 | |||
272 | /* Set operation mode in Receiver 6 register */ | ||
273 | cmd_buf[0] = 0x1C; | ||
274 | switch (state->current_modulation) { | ||
275 | case QAM_AUTO: | ||
276 | /* REC MODE Normal Carrier Lock */ | ||
277 | cmd_buf[1] = 0x00; | ||
278 | /* Channel MODE Auto QAM64/256 */ | ||
279 | cmd_buf[2] = 0x4f; | ||
280 | break; | ||
281 | case QAM_256: | ||
282 | /* REC MODE Normal Carrier Lock */ | ||
283 | cmd_buf[1] = 0x00; | ||
284 | /* Channel MODE QAM256 */ | ||
285 | cmd_buf[2] = 0x45; | ||
286 | break; | ||
287 | case QAM_64: | ||
288 | /* REC MODE Normal Carrier Lock */ | ||
289 | cmd_buf[1] = 0x00; | ||
290 | /* Channel MODE QAM64 */ | ||
291 | cmd_buf[2] = 0x43; | ||
292 | break; | ||
293 | case VSB_8: | ||
294 | /* REC MODE inv IF spectrum, Normal */ | ||
295 | cmd_buf[1] = 0x03; | ||
296 | /* Channel MODE ATSC/VSB8 */ | ||
297 | cmd_buf[2] = 0x06; | ||
298 | break; | ||
299 | default: | ||
300 | printk("setmode: Modulation set to unsupported value\n"); | ||
301 | }; | ||
302 | cmd_buf[3] = 0x00; | ||
303 | msleep(20); /* 20ms */ | ||
304 | if (i2c_writebytes(state,state->config->demod_address, | ||
305 | cmd_buf,3)) { | ||
306 | printk(KERN_WARNING "or51132: set_mode error 2\n"); | ||
307 | return -1; | ||
308 | } | ||
309 | dprintk("or51132: set #6 to 0x%02x%02x\n", cmd_buf[1], cmd_buf[2]); | ||
310 | |||
311 | return 0; | ||
312 | } | ||
313 | |||
314 | static int or51132_set_parameters(struct dvb_frontend* fe, | ||
315 | struct dvb_frontend_parameters *param) | ||
316 | { | ||
317 | int ret; | ||
318 | u8 buf[4]; | ||
319 | struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv; | ||
320 | const struct firmware *fw; | ||
321 | |||
322 | /* Change only if we are actually changing the modulation */ | ||
323 | if (state->current_modulation != param->u.vsb.modulation) { | ||
324 | switch(param->u.vsb.modulation) { | ||
325 | case VSB_8: | ||
326 | dprintk("set_parameters VSB MODE\n"); | ||
327 | printk("or51132: Waiting for firmware upload(%s)...\n", | ||
328 | OR51132_VSB_FIRMWARE); | ||
329 | ret = request_firmware(&fw, OR51132_VSB_FIRMWARE, | ||
330 | &state->i2c->dev); | ||
331 | if (ret){ | ||
332 | printk(KERN_WARNING "or51132: No firmware up" | ||
333 | "loaded(timeout or file not found?)\n"); | ||
334 | return ret; | ||
335 | } | ||
336 | /* Set non-punctured clock for VSB */ | ||
337 | state->config->set_ts_params(fe, 0); | ||
338 | break; | ||
339 | case QAM_AUTO: | ||
340 | case QAM_64: | ||
341 | case QAM_256: | ||
342 | dprintk("set_parameters QAM MODE\n"); | ||
343 | printk("or51132: Waiting for firmware upload(%s)...\n", | ||
344 | OR51132_QAM_FIRMWARE); | ||
345 | ret = request_firmware(&fw, OR51132_QAM_FIRMWARE, | ||
346 | &state->i2c->dev); | ||
347 | if (ret){ | ||
348 | printk(KERN_WARNING "or51132: No firmware up" | ||
349 | "loaded(timeout or file not found?)\n"); | ||
350 | return ret; | ||
351 | } | ||
352 | /* Set punctured clock for QAM */ | ||
353 | state->config->set_ts_params(fe, 1); | ||
354 | break; | ||
355 | default: | ||
356 | printk("or51132:Modulation type(%d) UNSUPPORTED\n", | ||
357 | param->u.vsb.modulation); | ||
358 | return -1; | ||
359 | }; | ||
360 | ret = or51132_load_firmware(fe, fw); | ||
361 | release_firmware(fw); | ||
362 | if (ret) { | ||
363 | printk(KERN_WARNING "or51132: Writing firmware to " | ||
364 | "device failed!\n"); | ||
365 | return ret; | ||
366 | } | ||
367 | printk("or51132: Firmware upload complete.\n"); | ||
368 | |||
369 | state->current_modulation = param->u.vsb.modulation; | ||
370 | or51132_setmode(fe); | ||
371 | } | ||
372 | |||
373 | /* Change only if we are actually changing the channel */ | ||
374 | if (state->current_frequency != param->frequency) { | ||
375 | dvb_pll_configure(state->config->pll_desc, buf, | ||
376 | param->frequency, 0); | ||
377 | dprintk("set_parameters tuner bytes: 0x%02x 0x%02x " | ||
378 | "0x%02x 0x%02x\n",buf[0],buf[1],buf[2],buf[3]); | ||
379 | if (i2c_writebytes(state, state->config->pll_address ,buf, 4)) | ||
380 | printk(KERN_WARNING "or51132: set_parameters error " | ||
381 | "writing to tuner\n"); | ||
382 | |||
383 | /* Set to current mode */ | ||
384 | or51132_setmode(fe); | ||
385 | |||
386 | /* Update current frequency */ | ||
387 | state->current_frequency = param->frequency; | ||
388 | } | ||
389 | return 0; | ||
390 | } | ||
391 | |||
392 | static int or51132_read_status(struct dvb_frontend* fe, fe_status_t* status) | ||
393 | { | ||
394 | struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv; | ||
395 | unsigned char rec_buf[2]; | ||
396 | unsigned char snd_buf[2]; | ||
397 | *status = 0; | ||
398 | |||
399 | /* Receiver Status */ | ||
400 | snd_buf[0]=0x04; | ||
401 | snd_buf[1]=0x00; | ||
402 | msleep(30); /* 30ms */ | ||
403 | if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { | ||
404 | printk(KERN_WARNING "or51132: read_status write error\n"); | ||
405 | return -1; | ||
406 | } | ||
407 | msleep(30); /* 30ms */ | ||
408 | if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { | ||
409 | printk(KERN_WARNING "or51132: read_status read error\n"); | ||
410 | return -1; | ||
411 | } | ||
412 | dprintk("read_status %x %x\n",rec_buf[0],rec_buf[1]); | ||
413 | |||
414 | if (rec_buf[1] & 0x01) { /* Receiver Lock */ | ||
415 | *status |= FE_HAS_SIGNAL; | ||
416 | *status |= FE_HAS_CARRIER; | ||
417 | *status |= FE_HAS_VITERBI; | ||
418 | *status |= FE_HAS_SYNC; | ||
419 | *status |= FE_HAS_LOCK; | ||
420 | } | ||
421 | return 0; | ||
422 | } | ||
423 | |||
424 | /* log10-1 table at .5 increments from 1 to 100.5 */ | ||
425 | static unsigned int i100x20log10[] = { | ||
426 | 0, 352, 602, 795, 954, 1088, 1204, 1306, 1397, 1480, | ||
427 | 1556, 1625, 1690, 1750, 1806, 1858, 1908, 1955, 2000, 2042, | ||
428 | 2082, 2121, 2158, 2193, 2227, 2260, 2292, 2322, 2352, 2380, | ||
429 | 2408, 2434, 2460, 2486, 2510, 2534, 2557, 2580, 2602, 2623, | ||
430 | 2644, 2664, 2684, 2704, 2723, 2742, 2760, 2778, 2795, 2813, | ||
431 | 2829, 2846, 2862, 2878, 2894, 2909, 2924, 2939, 2954, 2968, | ||
432 | 2982, 2996, 3010, 3023, 3037, 3050, 3062, 3075, 3088, 3100, | ||
433 | 3112, 3124, 3136, 3148, 3159, 3170, 3182, 3193, 3204, 3214, | ||
434 | 3225, 3236, 3246, 3256, 3266, 3276, 3286, 3296, 3306, 3316, | ||
435 | 3325, 3334, 3344, 3353, 3362, 3371, 3380, 3389, 3397, 3406, | ||
436 | 3415, 3423, 3432, 3440, 3448, 3456, 3464, 3472, 3480, 3488, | ||
437 | 3496, 3504, 3511, 3519, 3526, 3534, 3541, 3549, 3556, 3563, | ||
438 | 3570, 3577, 3584, 3591, 3598, 3605, 3612, 3619, 3625, 3632, | ||
439 | 3639, 3645, 3652, 3658, 3665, 3671, 3677, 3683, 3690, 3696, | ||
440 | 3702, 3708, 3714, 3720, 3726, 3732, 3738, 3744, 3750, 3755, | ||
441 | 3761, 3767, 3772, 3778, 3784, 3789, 3795, 3800, 3806, 3811, | ||
442 | 3816, 3822, 3827, 3832, 3838, 3843, 3848, 3853, 3858, 3863, | ||
443 | 3868, 3874, 3879, 3884, 3888, 3893, 3898, 3903, 3908, 3913, | ||
444 | 3918, 3922, 3927, 3932, 3936, 3941, 3946, 3950, 3955, 3960, | ||
445 | 3964, 3969, 3973, 3978, 3982, 3986, 3991, 3995, 4000, 4004, | ||
446 | }; | ||
447 | |||
448 | static unsigned int denom[] = {1,1,100,1000,10000,100000,1000000,10000000,100000000}; | ||
449 | |||
450 | static unsigned int i20Log10(unsigned short val) | ||
451 | { | ||
452 | unsigned int rntval = 100; | ||
453 | unsigned int tmp = val; | ||
454 | unsigned int exp = 1; | ||
455 | |||
456 | while(tmp > 100) {tmp /= 100; exp++;} | ||
457 | |||
458 | val = (2 * val)/denom[exp]; | ||
459 | if (exp > 1) rntval = 2000*exp; | ||
460 | |||
461 | rntval += i100x20log10[val]; | ||
462 | return rntval; | ||
463 | } | ||
464 | |||
465 | static int or51132_read_signal_strength(struct dvb_frontend* fe, u16* strength) | ||
466 | { | ||
467 | struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv; | ||
468 | unsigned char rec_buf[2]; | ||
469 | unsigned char snd_buf[2]; | ||
470 | u8 rcvr_stat; | ||
471 | u16 snr_equ; | ||
472 | int usK; | ||
473 | |||
474 | snd_buf[0]=0x04; | ||
475 | snd_buf[1]=0x02; /* SNR after Equalizer */ | ||
476 | msleep(30); /* 30ms */ | ||
477 | if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { | ||
478 | printk(KERN_WARNING "or51132: read_status write error\n"); | ||
479 | return -1; | ||
480 | } | ||
481 | msleep(30); /* 30ms */ | ||
482 | if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { | ||
483 | printk(KERN_WARNING "or51132: read_status read error\n"); | ||
484 | return -1; | ||
485 | } | ||
486 | snr_equ = rec_buf[0] | (rec_buf[1] << 8); | ||
487 | dprintk("read_signal_strength snr_equ %x %x (%i)\n",rec_buf[0],rec_buf[1],snr_equ); | ||
488 | |||
489 | /* Receiver Status */ | ||
490 | snd_buf[0]=0x04; | ||
491 | snd_buf[1]=0x00; | ||
492 | msleep(30); /* 30ms */ | ||
493 | if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { | ||
494 | printk(KERN_WARNING "or51132: read_signal_strength read_status write error\n"); | ||
495 | return -1; | ||
496 | } | ||
497 | msleep(30); /* 30ms */ | ||
498 | if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { | ||
499 | printk(KERN_WARNING "or51132: read_signal_strength read_status read error\n"); | ||
500 | return -1; | ||
501 | } | ||
502 | dprintk("read_signal_strength read_status %x %x\n",rec_buf[0],rec_buf[1]); | ||
503 | rcvr_stat = rec_buf[1]; | ||
504 | usK = (rcvr_stat & 0x10) ? 3 : 0; | ||
505 | |||
506 | /* The value reported back from the frontend will be FFFF=100% 0000=0% */ | ||
507 | *strength = (((8952 - i20Log10(snr_equ) - usK*100)/3+5)*65535)/1000; | ||
508 | dprintk("read_signal_strength %i\n",*strength); | ||
509 | |||
510 | return 0; | ||
511 | } | ||
512 | |||
513 | static int or51132_read_snr(struct dvb_frontend* fe, u16* snr) | ||
514 | { | ||
515 | struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv; | ||
516 | unsigned char rec_buf[2]; | ||
517 | unsigned char snd_buf[2]; | ||
518 | u16 snr_equ; | ||
519 | |||
520 | snd_buf[0]=0x04; | ||
521 | snd_buf[1]=0x02; /* SNR after Equalizer */ | ||
522 | msleep(30); /* 30ms */ | ||
523 | if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { | ||
524 | printk(KERN_WARNING "or51132: read_snr write error\n"); | ||
525 | return -1; | ||
526 | } | ||
527 | msleep(30); /* 30ms */ | ||
528 | if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { | ||
529 | printk(KERN_WARNING "or51132: read_snr dvr read error\n"); | ||
530 | return -1; | ||
531 | } | ||
532 | snr_equ = rec_buf[0] | (rec_buf[1] << 8); | ||
533 | dprintk("read_snr snr_equ %x %x (%i)\n",rec_buf[0],rec_buf[1],snr_equ); | ||
534 | |||
535 | *snr = 0xFFFF - snr_equ; | ||
536 | dprintk("read_snr %i\n",*snr); | ||
537 | |||
538 | return 0; | ||
539 | } | ||
540 | |||
541 | static int or51132_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fe_tune_settings) | ||
542 | { | ||
543 | fe_tune_settings->min_delay_ms = 500; | ||
544 | fe_tune_settings->step_size = 0; | ||
545 | fe_tune_settings->max_drift = 0; | ||
546 | |||
547 | return 0; | ||
548 | } | ||
549 | |||
550 | static void or51132_release(struct dvb_frontend* fe) | ||
551 | { | ||
552 | struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv; | ||
553 | kfree(state); | ||
554 | } | ||
555 | |||
556 | static struct dvb_frontend_ops or51132_ops; | ||
557 | |||
558 | struct dvb_frontend* or51132_attach(const struct or51132_config* config, | ||
559 | struct i2c_adapter* i2c) | ||
560 | { | ||
561 | struct or51132_state* state = NULL; | ||
562 | |||
563 | /* Allocate memory for the internal state */ | ||
564 | state = kmalloc(sizeof(struct or51132_state), GFP_KERNEL); | ||
565 | if (state == NULL) | ||
566 | goto error; | ||
567 | |||
568 | /* Setup the state */ | ||
569 | state->config = config; | ||
570 | state->i2c = i2c; | ||
571 | memcpy(&state->ops, &or51132_ops, sizeof(struct dvb_frontend_ops)); | ||
572 | state->current_frequency = -1; | ||
573 | state->current_modulation = -1; | ||
574 | |||
575 | /* Create dvb_frontend */ | ||
576 | state->frontend.ops = &state->ops; | ||
577 | state->frontend.demodulator_priv = state; | ||
578 | return &state->frontend; | ||
579 | |||
580 | error: | ||
581 | if (state) | ||
582 | kfree(state); | ||
583 | return NULL; | ||
584 | } | ||
585 | |||
586 | static struct dvb_frontend_ops or51132_ops = { | ||
587 | |||
588 | .info = { | ||
589 | .name = "Oren OR51132 VSB/QAM Frontend", | ||
590 | .type = FE_ATSC, | ||
591 | .frequency_min = 44000000, | ||
592 | .frequency_max = 958000000, | ||
593 | .frequency_stepsize = 166666, | ||
594 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | ||
595 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | ||
596 | FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_QAM_AUTO | | ||
597 | FE_CAN_8VSB | ||
598 | }, | ||
599 | |||
600 | .release = or51132_release, | ||
601 | |||
602 | .init = or51132_init, | ||
603 | .sleep = or51132_sleep, | ||
604 | |||
605 | .set_frontend = or51132_set_parameters, | ||
606 | .get_tune_settings = or51132_get_tune_settings, | ||
607 | |||
608 | .read_status = or51132_read_status, | ||
609 | .read_ber = or51132_read_ber, | ||
610 | .read_signal_strength = or51132_read_signal_strength, | ||
611 | .read_snr = or51132_read_snr, | ||
612 | .read_ucblocks = or51132_read_ucblocks, | ||
613 | }; | ||
614 | |||
615 | module_param(debug, int, 0644); | ||
616 | MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); | ||
617 | |||
618 | MODULE_DESCRIPTION("OR51132 ATSC [pcHDTV HD-3000] (8VSB & ITU J83 AnnexB FEC QAM64/256) Demodulator Driver"); | ||
619 | MODULE_AUTHOR("Kirk Lapray"); | ||
620 | MODULE_LICENSE("GPL"); | ||
621 | |||
622 | EXPORT_SYMBOL(or51132_attach); | ||
623 | |||
624 | /* | ||
625 | * Local variables: | ||
626 | * c-basic-offset: 8 | ||
627 | * End: | ||
628 | */ | ||