1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | STB0899 Multistandard Frontend driver |
4 | Copyright (C) Manu Abraham (abraham.manu@gmail.com) |
5 | |
6 | Copyright (C) ST Microelectronics |
7 | |
8 | */ |
9 | |
10 | #include <linux/init.h> |
11 | #include <linux/jiffies.h> |
12 | #include <linux/kernel.h> |
13 | #include <linux/module.h> |
14 | #include <linux/slab.h> |
15 | #include <linux/string.h> |
16 | |
17 | #include <linux/dvb/frontend.h> |
18 | #include <media/dvb_frontend.h> |
19 | |
20 | #include "stb0899_drv.h" |
21 | #include "stb0899_priv.h" |
22 | #include "stb0899_reg.h" |
23 | |
24 | /* Max transfer size done by I2C transfer functions */ |
25 | #define MAX_XFER_SIZE 64 |
26 | |
27 | static unsigned int verbose = 0;//1; |
28 | module_param(verbose, int, 0644); |
29 | |
30 | /* C/N in dB/10, NIRM/NIRL */ |
31 | static const struct stb0899_tab stb0899_cn_tab[] = { |
32 | { 200, 2600 }, |
33 | { 190, 2700 }, |
34 | { 180, 2860 }, |
35 | { 170, 3020 }, |
36 | { 160, 3210 }, |
37 | { 150, 3440 }, |
38 | { 140, 3710 }, |
39 | { 130, 4010 }, |
40 | { 120, 4360 }, |
41 | { 110, 4740 }, |
42 | { 100, 5190 }, |
43 | { 90, 5670 }, |
44 | { 80, 6200 }, |
45 | { 70, 6770 }, |
46 | { 60, 7360 }, |
47 | { 50, 7970 }, |
48 | { 40, 8250 }, |
49 | { 30, 9000 }, |
50 | { 20, 9450 }, |
51 | { 15, 9600 }, |
52 | }; |
53 | |
54 | /* DVB-S AGCIQ_VALUE vs. signal level in dBm/10. |
55 | * As measured, connected to a modulator. |
56 | * -8.0 to -50.0 dBm directly connected, |
57 | * -52.0 to -74.8 with extra attenuation. |
58 | * Cut-off to AGCIQ_VALUE = 0x80 below -74.8dBm. |
59 | * Crude linear extrapolation below -84.8dBm and above -8.0dBm. |
60 | */ |
61 | static const struct stb0899_tab stb0899_dvbsrf_tab[] = { |
62 | { -750, -128 }, |
63 | { -748, -94 }, |
64 | { -745, -92 }, |
65 | { -735, -90 }, |
66 | { -720, -87 }, |
67 | { -670, -77 }, |
68 | { -640, -70 }, |
69 | { -610, -62 }, |
70 | { -600, -60 }, |
71 | { -590, -56 }, |
72 | { -560, -41 }, |
73 | { -540, -25 }, |
74 | { -530, -17 }, |
75 | { -520, -11 }, |
76 | { -500, 1 }, |
77 | { -490, 6 }, |
78 | { -480, 10 }, |
79 | { -440, 22 }, |
80 | { -420, 27 }, |
81 | { -400, 31 }, |
82 | { -380, 34 }, |
83 | { -340, 40 }, |
84 | { -320, 43 }, |
85 | { -280, 48 }, |
86 | { -250, 52 }, |
87 | { -230, 55 }, |
88 | { -180, 61 }, |
89 | { -140, 66 }, |
90 | { -90, 73 }, |
91 | { -80, 74 }, |
92 | { 500, 127 } |
93 | }; |
94 | |
95 | /* DVB-S2 IF_AGC_GAIN vs. signal level in dBm/10. |
96 | * As measured, connected to a modulator. |
97 | * -8.0 to -50.1 dBm directly connected, |
98 | * -53.0 to -76.6 with extra attenuation. |
99 | * Cut-off to IF_AGC_GAIN = 0x3fff below -76.6dBm. |
100 | * Crude linear extrapolation below -76.6dBm and above -8.0dBm. |
101 | */ |
102 | static const struct stb0899_tab stb0899_dvbs2rf_tab[] = { |
103 | { 700, 0 }, |
104 | { -80, 3217 }, |
105 | { -150, 3893 }, |
106 | { -190, 4217 }, |
107 | { -240, 4621 }, |
108 | { -280, 4945 }, |
109 | { -320, 5273 }, |
110 | { -350, 5545 }, |
111 | { -370, 5741 }, |
112 | { -410, 6147 }, |
113 | { -450, 6671 }, |
114 | { -490, 7413 }, |
115 | { -501, 7665 }, |
116 | { -530, 8767 }, |
117 | { -560, 10219 }, |
118 | { -580, 10939 }, |
119 | { -590, 11518 }, |
120 | { -600, 11723 }, |
121 | { -650, 12659 }, |
122 | { -690, 13219 }, |
123 | { -730, 13645 }, |
124 | { -750, 13909 }, |
125 | { -766, 14153 }, |
126 | { -950, 16383 } |
127 | }; |
128 | |
129 | /* DVB-S2 Es/N0 quant in dB/100 vs read value * 100*/ |
130 | static struct stb0899_tab stb0899_quant_tab[] = { |
131 | { 0, 0 }, |
132 | { 0, 100 }, |
133 | { 600, 200 }, |
134 | { 950, 299 }, |
135 | { 1200, 398 }, |
136 | { 1400, 501 }, |
137 | { 1560, 603 }, |
138 | { 1690, 700 }, |
139 | { 1810, 804 }, |
140 | { 1910, 902 }, |
141 | { 2000, 1000 }, |
142 | { 2080, 1096 }, |
143 | { 2160, 1202 }, |
144 | { 2230, 1303 }, |
145 | { 2350, 1496 }, |
146 | { 2410, 1603 }, |
147 | { 2460, 1698 }, |
148 | { 2510, 1799 }, |
149 | { 2600, 1995 }, |
150 | { 2650, 2113 }, |
151 | { 2690, 2213 }, |
152 | { 2720, 2291 }, |
153 | { 2760, 2399 }, |
154 | { 2800, 2512 }, |
155 | { 2860, 2692 }, |
156 | { 2930, 2917 }, |
157 | { 2960, 3020 }, |
158 | { 3010, 3199 }, |
159 | { 3040, 3311 }, |
160 | { 3060, 3388 }, |
161 | { 3120, 3631 }, |
162 | { 3190, 3936 }, |
163 | { 3400, 5012 }, |
164 | { 3610, 6383 }, |
165 | { 3800, 7943 }, |
166 | { 4210, 12735 }, |
167 | { 4500, 17783 }, |
168 | { 4690, 22131 }, |
169 | { 4810, 25410 } |
170 | }; |
171 | |
172 | /* DVB-S2 Es/N0 estimate in dB/100 vs read value */ |
173 | static struct stb0899_tab stb0899_est_tab[] = { |
174 | { 0, 0 }, |
175 | { 0, 1 }, |
176 | { 301, 2 }, |
177 | { 1204, 16 }, |
178 | { 1806, 64 }, |
179 | { 2408, 256 }, |
180 | { 2709, 512 }, |
181 | { 3010, 1023 }, |
182 | { 3311, 2046 }, |
183 | { 3612, 4093 }, |
184 | { 3823, 6653 }, |
185 | { 3913, 8185 }, |
186 | { 4010, 10233 }, |
187 | { 4107, 12794 }, |
188 | { 4214, 16368 }, |
189 | { 4266, 18450 }, |
190 | { 4311, 20464 }, |
191 | { 4353, 22542 }, |
192 | { 4391, 24604 }, |
193 | { 4425, 26607 }, |
194 | { 4457, 28642 }, |
195 | { 4487, 30690 }, |
196 | { 4515, 32734 }, |
197 | { 4612, 40926 }, |
198 | { 4692, 49204 }, |
199 | { 4816, 65464 }, |
200 | { 4913, 81846 }, |
201 | { 4993, 98401 }, |
202 | { 5060, 114815 }, |
203 | { 5118, 131220 }, |
204 | { 5200, 158489 }, |
205 | { 5300, 199526 }, |
206 | { 5400, 251189 }, |
207 | { 5500, 316228 }, |
208 | { 5600, 398107 }, |
209 | { 5720, 524807 }, |
210 | { 5721, 526017 }, |
211 | }; |
212 | |
213 | static int _stb0899_read_reg(struct stb0899_state *state, unsigned int reg) |
214 | { |
215 | int ret; |
216 | |
217 | u8 b0[] = { reg >> 8, reg & 0xff }; |
218 | u8 buf; |
219 | |
220 | struct i2c_msg msg[] = { |
221 | { |
222 | .addr = state->config->demod_address, |
223 | .flags = 0, |
224 | .buf = b0, |
225 | .len = 2 |
226 | },{ |
227 | .addr = state->config->demod_address, |
228 | .flags = I2C_M_RD, |
229 | .buf = &buf, |
230 | .len = 1 |
231 | } |
232 | }; |
233 | |
234 | ret = i2c_transfer(adap: state->i2c, msgs: msg, num: 2); |
235 | if (ret != 2) { |
236 | if (ret != -ERESTARTSYS) |
237 | dprintk(state->verbose, FE_ERROR, 1, |
238 | "Read error, Reg=[0x%02x], Status=%d" , |
239 | reg, ret); |
240 | |
241 | return ret < 0 ? ret : -EREMOTEIO; |
242 | } |
243 | if (unlikely(*state->verbose >= FE_DEBUGREG)) |
244 | dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%02x], data=%02x" , |
245 | reg, buf); |
246 | |
247 | return (unsigned int)buf; |
248 | } |
249 | |
250 | int stb0899_read_reg(struct stb0899_state *state, unsigned int reg) |
251 | { |
252 | int result; |
253 | |
254 | result = _stb0899_read_reg(state, reg); |
255 | /* |
256 | * Bug ID 9: |
257 | * access to 0xf2xx/0xf6xx |
258 | * must be followed by read from 0xf2ff/0xf6ff. |
259 | */ |
260 | if ((reg != 0xf2ff) && (reg != 0xf6ff) && |
261 | (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600))) |
262 | _stb0899_read_reg(state, reg: (reg | 0x00ff)); |
263 | |
264 | return result; |
265 | } |
266 | |
267 | u32 _stb0899_read_s2reg(struct stb0899_state *state, |
268 | u32 stb0899_i2cdev, |
269 | u32 stb0899_base_addr, |
270 | u16 stb0899_reg_offset) |
271 | { |
272 | int status; |
273 | u32 data; |
274 | u8 buf[7] = { 0 }; |
275 | u16 tmpaddr; |
276 | |
277 | u8 buf_0[] = { |
278 | GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */ |
279 | GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */ |
280 | GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */ |
281 | GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */ |
282 | GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */ |
283 | GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */ |
284 | }; |
285 | u8 buf_1[] = { |
286 | 0x00, /* 0xf3 Reg Offset */ |
287 | 0x00, /* 0x44 Reg Offset */ |
288 | }; |
289 | |
290 | struct i2c_msg msg_0 = { |
291 | .addr = state->config->demod_address, |
292 | .flags = 0, |
293 | .buf = buf_0, |
294 | .len = 6 |
295 | }; |
296 | |
297 | struct i2c_msg msg_1 = { |
298 | .addr = state->config->demod_address, |
299 | .flags = 0, |
300 | .buf = buf_1, |
301 | .len = 2 |
302 | }; |
303 | |
304 | struct i2c_msg msg_r = { |
305 | .addr = state->config->demod_address, |
306 | .flags = I2C_M_RD, |
307 | .buf = buf, |
308 | .len = 4 |
309 | }; |
310 | |
311 | tmpaddr = stb0899_reg_offset & 0xff00; |
312 | if (!(stb0899_reg_offset & 0x8)) |
313 | tmpaddr = stb0899_reg_offset | 0x20; |
314 | |
315 | buf_1[0] = GETBYTE(tmpaddr, BYTE1); |
316 | buf_1[1] = GETBYTE(tmpaddr, BYTE0); |
317 | |
318 | status = i2c_transfer(adap: state->i2c, msgs: &msg_0, num: 1); |
319 | if (status < 1) { |
320 | if (status != -ERESTARTSYS) |
321 | printk(KERN_ERR "%s ERR(1), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n" , |
322 | __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status); |
323 | |
324 | goto err; |
325 | } |
326 | |
327 | /* Dummy */ |
328 | status = i2c_transfer(adap: state->i2c, msgs: &msg_1, num: 1); |
329 | if (status < 1) |
330 | goto err; |
331 | |
332 | status = i2c_transfer(adap: state->i2c, msgs: &msg_r, num: 1); |
333 | if (status < 1) |
334 | goto err; |
335 | |
336 | buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1); |
337 | buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0); |
338 | |
339 | /* Actual */ |
340 | status = i2c_transfer(adap: state->i2c, msgs: &msg_1, num: 1); |
341 | if (status < 1) { |
342 | if (status != -ERESTARTSYS) |
343 | printk(KERN_ERR "%s ERR(2), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n" , |
344 | __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status); |
345 | goto err; |
346 | } |
347 | |
348 | status = i2c_transfer(adap: state->i2c, msgs: &msg_r, num: 1); |
349 | if (status < 1) { |
350 | if (status != -ERESTARTSYS) |
351 | printk(KERN_ERR "%s ERR(3), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n" , |
352 | __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status); |
353 | return status < 0 ? status : -EREMOTEIO; |
354 | } |
355 | |
356 | data = MAKEWORD32(buf[3], buf[2], buf[1], buf[0]); |
357 | if (unlikely(*state->verbose >= FE_DEBUGREG)) |
358 | printk(KERN_DEBUG "%s Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n" , |
359 | __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, data); |
360 | |
361 | return data; |
362 | |
363 | err: |
364 | return status < 0 ? status : -EREMOTEIO; |
365 | } |
366 | |
367 | int stb0899_write_s2reg(struct stb0899_state *state, |
368 | u32 stb0899_i2cdev, |
369 | u32 stb0899_base_addr, |
370 | u16 stb0899_reg_offset, |
371 | u32 stb0899_data) |
372 | { |
373 | int status; |
374 | |
375 | /* Base Address Setup */ |
376 | u8 buf_0[] = { |
377 | GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */ |
378 | GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */ |
379 | GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */ |
380 | GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */ |
381 | GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */ |
382 | GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */ |
383 | }; |
384 | u8 buf_1[] = { |
385 | 0x00, /* 0xf3 Reg Offset */ |
386 | 0x00, /* 0x44 Reg Offset */ |
387 | 0x00, /* data */ |
388 | 0x00, /* data */ |
389 | 0x00, /* data */ |
390 | 0x00, /* data */ |
391 | }; |
392 | |
393 | struct i2c_msg msg_0 = { |
394 | .addr = state->config->demod_address, |
395 | .flags = 0, |
396 | .buf = buf_0, |
397 | .len = 6 |
398 | }; |
399 | |
400 | struct i2c_msg msg_1 = { |
401 | .addr = state->config->demod_address, |
402 | .flags = 0, |
403 | .buf = buf_1, |
404 | .len = 6 |
405 | }; |
406 | |
407 | buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1); |
408 | buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0); |
409 | buf_1[2] = GETBYTE(stb0899_data, BYTE0); |
410 | buf_1[3] = GETBYTE(stb0899_data, BYTE1); |
411 | buf_1[4] = GETBYTE(stb0899_data, BYTE2); |
412 | buf_1[5] = GETBYTE(stb0899_data, BYTE3); |
413 | |
414 | if (unlikely(*state->verbose >= FE_DEBUGREG)) |
415 | printk(KERN_DEBUG "%s Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n" , |
416 | __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data); |
417 | |
418 | status = i2c_transfer(adap: state->i2c, msgs: &msg_0, num: 1); |
419 | if (unlikely(status < 1)) { |
420 | if (status != -ERESTARTSYS) |
421 | printk(KERN_ERR "%s ERR (1), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n" , |
422 | __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status); |
423 | goto err; |
424 | } |
425 | status = i2c_transfer(adap: state->i2c, msgs: &msg_1, num: 1); |
426 | if (unlikely(status < 1)) { |
427 | if (status != -ERESTARTSYS) |
428 | printk(KERN_ERR "%s ERR (2), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n" , |
429 | __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status); |
430 | |
431 | return status < 0 ? status : -EREMOTEIO; |
432 | } |
433 | |
434 | return 0; |
435 | |
436 | err: |
437 | return status < 0 ? status : -EREMOTEIO; |
438 | } |
439 | |
440 | int stb0899_read_regs(struct stb0899_state *state, unsigned int reg, u8 *buf, u32 count) |
441 | { |
442 | int status; |
443 | |
444 | u8 b0[] = { reg >> 8, reg & 0xff }; |
445 | |
446 | struct i2c_msg msg[] = { |
447 | { |
448 | .addr = state->config->demod_address, |
449 | .flags = 0, |
450 | .buf = b0, |
451 | .len = 2 |
452 | },{ |
453 | .addr = state->config->demod_address, |
454 | .flags = I2C_M_RD, |
455 | .buf = buf, |
456 | .len = count |
457 | } |
458 | }; |
459 | |
460 | status = i2c_transfer(adap: state->i2c, msgs: msg, num: 2); |
461 | if (status != 2) { |
462 | if (status != -ERESTARTSYS) |
463 | printk(KERN_ERR "%s Read error, Reg=[0x%04x], Count=%u, Status=%d\n" , |
464 | __func__, reg, count, status); |
465 | goto err; |
466 | } |
467 | /* |
468 | * Bug ID 9: |
469 | * access to 0xf2xx/0xf6xx |
470 | * must be followed by read from 0xf2ff/0xf6ff. |
471 | */ |
472 | if ((reg != 0xf2ff) && (reg != 0xf6ff) && |
473 | (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600))) |
474 | _stb0899_read_reg(state, reg: (reg | 0x00ff)); |
475 | |
476 | dprintk(state->verbose, FE_DEBUGREG, 1, |
477 | "%s [0x%04x]: %*ph" , __func__, reg, count, buf); |
478 | |
479 | return 0; |
480 | err: |
481 | return status < 0 ? status : -EREMOTEIO; |
482 | } |
483 | |
484 | int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, u32 count) |
485 | { |
486 | int ret; |
487 | u8 buf[MAX_XFER_SIZE]; |
488 | struct i2c_msg i2c_msg = { |
489 | .addr = state->config->demod_address, |
490 | .flags = 0, |
491 | .buf = buf, |
492 | .len = 2 + count |
493 | }; |
494 | |
495 | if (2 + count > sizeof(buf)) { |
496 | printk(KERN_WARNING |
497 | "%s: i2c wr reg=%04x: len=%d is too big!\n" , |
498 | KBUILD_MODNAME, reg, count); |
499 | return -EINVAL; |
500 | } |
501 | |
502 | buf[0] = reg >> 8; |
503 | buf[1] = reg & 0xff; |
504 | memcpy(&buf[2], data, count); |
505 | |
506 | dprintk(state->verbose, FE_DEBUGREG, 1, |
507 | "%s [0x%04x]: %*ph" , __func__, reg, count, data); |
508 | ret = i2c_transfer(adap: state->i2c, msgs: &i2c_msg, num: 1); |
509 | |
510 | /* |
511 | * Bug ID 9: |
512 | * access to 0xf2xx/0xf6xx |
513 | * must be followed by read from 0xf2ff/0xf6ff. |
514 | */ |
515 | if ((((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600))) |
516 | stb0899_read_reg(state, reg: (reg | 0x00ff)); |
517 | |
518 | if (ret != 1) { |
519 | if (ret != -ERESTARTSYS) |
520 | dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d" , |
521 | reg, data[0], count, ret); |
522 | return ret < 0 ? ret : -EREMOTEIO; |
523 | } |
524 | |
525 | return 0; |
526 | } |
527 | |
528 | int stb0899_write_reg(struct stb0899_state *state, unsigned int reg, u8 data) |
529 | { |
530 | u8 tmp = data; |
531 | return stb0899_write_regs(state, reg, data: &tmp, count: 1); |
532 | } |
533 | |
534 | /* |
535 | * stb0899_get_mclk |
536 | * Get STB0899 master clock frequency |
537 | * ExtClk: external clock frequency (Hz) |
538 | */ |
539 | static u32 stb0899_get_mclk(struct stb0899_state *state) |
540 | { |
541 | u32 mclk = 0, div = 0; |
542 | |
543 | div = stb0899_read_reg(state, STB0899_NCOARSE); |
544 | mclk = (div + 1) * state->config->xtal_freq / 6; |
545 | dprintk(state->verbose, FE_DEBUG, 1, "div=%d, mclk=%d" , div, mclk); |
546 | |
547 | return mclk; |
548 | } |
549 | |
550 | /* |
551 | * stb0899_set_mclk |
552 | * Set STB0899 master Clock frequency |
553 | * Mclk: demodulator master clock |
554 | * ExtClk: external clock frequency (Hz) |
555 | */ |
556 | static void stb0899_set_mclk(struct stb0899_state *state, u32 Mclk) |
557 | { |
558 | struct stb0899_internal *internal = &state->internal; |
559 | u8 mdiv = 0; |
560 | |
561 | dprintk(state->verbose, FE_DEBUG, 1, "state->config=%p" , state->config); |
562 | mdiv = ((6 * Mclk) / state->config->xtal_freq) - 1; |
563 | dprintk(state->verbose, FE_DEBUG, 1, "mdiv=%d" , mdiv); |
564 | |
565 | stb0899_write_reg(state, STB0899_NCOARSE, data: mdiv); |
566 | internal->master_clk = stb0899_get_mclk(state); |
567 | |
568 | dprintk(state->verbose, FE_DEBUG, 1, "MasterCLOCK=%d" , internal->master_clk); |
569 | } |
570 | |
571 | static int stb0899_postproc(struct stb0899_state *state, u8 ctl, int enable) |
572 | { |
573 | struct stb0899_config *config = state->config; |
574 | const struct stb0899_postproc *postproc = config->postproc; |
575 | |
576 | /* post process event */ |
577 | if (postproc) { |
578 | if (enable) { |
579 | if (postproc[ctl].level == STB0899_GPIOPULLUP) |
580 | stb0899_write_reg(state, reg: postproc[ctl].gpio, data: 0x02); |
581 | else |
582 | stb0899_write_reg(state, reg: postproc[ctl].gpio, data: 0x82); |
583 | } else { |
584 | if (postproc[ctl].level == STB0899_GPIOPULLUP) |
585 | stb0899_write_reg(state, reg: postproc[ctl].gpio, data: 0x82); |
586 | else |
587 | stb0899_write_reg(state, reg: postproc[ctl].gpio, data: 0x02); |
588 | } |
589 | } |
590 | return 0; |
591 | } |
592 | |
593 | static void stb0899_detach(struct dvb_frontend *fe) |
594 | { |
595 | struct stb0899_state *state = fe->demodulator_priv; |
596 | |
597 | /* post process event */ |
598 | stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, enable: 0); |
599 | } |
600 | |
601 | static void stb0899_release(struct dvb_frontend *fe) |
602 | { |
603 | struct stb0899_state *state = fe->demodulator_priv; |
604 | |
605 | dprintk(state->verbose, FE_DEBUG, 1, "Release Frontend" ); |
606 | kfree(objp: state); |
607 | } |
608 | |
609 | /* |
610 | * stb0899_get_alpha |
611 | * return: rolloff |
612 | */ |
613 | static int stb0899_get_alpha(struct stb0899_state *state) |
614 | { |
615 | u8 mode_coeff; |
616 | |
617 | mode_coeff = stb0899_read_reg(state, STB0899_DEMOD); |
618 | |
619 | if (STB0899_GETFIELD(MODECOEFF, mode_coeff) == 1) |
620 | return 20; |
621 | else |
622 | return 35; |
623 | } |
624 | |
625 | /* |
626 | * stb0899_init_calc |
627 | */ |
628 | static void stb0899_init_calc(struct stb0899_state *state) |
629 | { |
630 | struct stb0899_internal *internal = &state->internal; |
631 | int master_clk; |
632 | u8 agc[2]; |
633 | u32 reg; |
634 | |
635 | /* Read registers (in burst mode) */ |
636 | stb0899_read_regs(state, STB0899_AGC1REF, buf: agc, count: 2); /* AGC1R and AGC2O */ |
637 | |
638 | /* Initial calculations */ |
639 | master_clk = stb0899_get_mclk(state); |
640 | internal->t_agc1 = 0; |
641 | internal->t_agc2 = 0; |
642 | internal->master_clk = master_clk; |
643 | internal->mclk = master_clk / 65536L; |
644 | internal->rolloff = stb0899_get_alpha(state); |
645 | |
646 | /* DVBS2 Initial calculations */ |
647 | /* Set AGC value to the middle */ |
648 | internal->agc_gain = 8154; |
649 | reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_CNTRL); |
650 | STB0899_SETFIELD_VAL(IF_GAIN_INIT, reg, internal->agc_gain); |
651 | stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_IF_AGC_CNTRL, STB0899_OFF0_IF_AGC_CNTRL, stb0899_data: reg); |
652 | |
653 | reg = STB0899_READ_S2REG(STB0899_S2DEMOD, RRC_ALPHA); |
654 | internal->rrc_alpha = STB0899_GETFIELD(RRC_ALPHA, reg); |
655 | |
656 | internal->center_freq = 0; |
657 | internal->av_frame_coarse = 10; |
658 | internal->av_frame_fine = 20; |
659 | internal->step_size = 2; |
660 | /* |
661 | if ((pParams->SpectralInv == FE_IQ_NORMAL) || (pParams->SpectralInv == FE_IQ_AUTO)) |
662 | pParams->IQLocked = 0; |
663 | else |
664 | pParams->IQLocked = 1; |
665 | */ |
666 | } |
667 | |
668 | static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeout) |
669 | { |
670 | u8 reg = 0; |
671 | unsigned long start = jiffies; |
672 | |
673 | while (1) { |
674 | reg = stb0899_read_reg(state, STB0899_DISSTATUS); |
675 | if (!STB0899_GETFIELD(FIFOFULL, reg)) |
676 | break; |
677 | if (time_after(jiffies, start + timeout)) { |
678 | dprintk(state->verbose, FE_ERROR, 1, "timed out !!" ); |
679 | return -ETIMEDOUT; |
680 | } |
681 | } |
682 | |
683 | return 0; |
684 | } |
685 | |
686 | static int stb0899_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd) |
687 | { |
688 | struct stb0899_state *state = fe->demodulator_priv; |
689 | u8 reg, i; |
690 | |
691 | if (cmd->msg_len > sizeof(cmd->msg)) |
692 | return -EINVAL; |
693 | |
694 | /* enable FIFO precharge */ |
695 | reg = stb0899_read_reg(state, STB0899_DISCNTRL1); |
696 | STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 1); |
697 | stb0899_write_reg(state, STB0899_DISCNTRL1, data: reg); |
698 | for (i = 0; i < cmd->msg_len; i++) { |
699 | /* wait for FIFO empty */ |
700 | if (stb0899_wait_diseqc_fifo_empty(state, timeout: 100) < 0) |
701 | return -ETIMEDOUT; |
702 | |
703 | stb0899_write_reg(state, STB0899_DISFIFO, data: cmd->msg[i]); |
704 | } |
705 | reg = stb0899_read_reg(state, STB0899_DISCNTRL1); |
706 | STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0); |
707 | stb0899_write_reg(state, STB0899_DISCNTRL1, data: reg); |
708 | msleep(msecs: 100); |
709 | return 0; |
710 | } |
711 | |
712 | static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout) |
713 | { |
714 | u8 reg = 0; |
715 | unsigned long start = jiffies; |
716 | |
717 | while (!STB0899_GETFIELD(RXEND, reg)) { |
718 | reg = stb0899_read_reg(state, STB0899_DISRX_ST0); |
719 | if (time_after(jiffies, start + timeout)) { |
720 | dprintk(state->verbose, FE_ERROR, 1, "timed out!!" ); |
721 | return -ETIMEDOUT; |
722 | } |
723 | msleep(msecs: 10); |
724 | } |
725 | |
726 | return 0; |
727 | } |
728 | |
729 | static int stb0899_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply) |
730 | { |
731 | struct stb0899_state *state = fe->demodulator_priv; |
732 | u8 reg, length = 0, i; |
733 | int result; |
734 | |
735 | if (stb0899_wait_diseqc_rxidle(state, timeout: 100) < 0) |
736 | return -ETIMEDOUT; |
737 | |
738 | reg = stb0899_read_reg(state, STB0899_DISRX_ST0); |
739 | if (STB0899_GETFIELD(RXEND, reg)) { |
740 | |
741 | reg = stb0899_read_reg(state, STB0899_DISRX_ST1); |
742 | length = STB0899_GETFIELD(FIFOBYTENBR, reg); |
743 | |
744 | if (length > sizeof (reply->msg)) { |
745 | result = -EOVERFLOW; |
746 | goto exit; |
747 | } |
748 | reply->msg_len = length; |
749 | |
750 | /* extract data */ |
751 | for (i = 0; i < length; i++) |
752 | reply->msg[i] = stb0899_read_reg(state, STB0899_DISFIFO); |
753 | } |
754 | |
755 | return 0; |
756 | exit: |
757 | |
758 | return result; |
759 | } |
760 | |
761 | static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout) |
762 | { |
763 | u8 reg = 0; |
764 | unsigned long start = jiffies; |
765 | |
766 | while (!STB0899_GETFIELD(TXIDLE, reg)) { |
767 | reg = stb0899_read_reg(state, STB0899_DISSTATUS); |
768 | if (time_after(jiffies, start + timeout)) { |
769 | dprintk(state->verbose, FE_ERROR, 1, "timed out!!" ); |
770 | return -ETIMEDOUT; |
771 | } |
772 | msleep(msecs: 10); |
773 | } |
774 | return 0; |
775 | } |
776 | |
777 | static int stb0899_send_diseqc_burst(struct dvb_frontend *fe, |
778 | enum fe_sec_mini_cmd burst) |
779 | { |
780 | struct stb0899_state *state = fe->demodulator_priv; |
781 | u8 reg, old_state; |
782 | |
783 | /* wait for diseqc idle */ |
784 | if (stb0899_wait_diseqc_txidle(state, timeout: 100) < 0) |
785 | return -ETIMEDOUT; |
786 | |
787 | reg = stb0899_read_reg(state, STB0899_DISCNTRL1); |
788 | old_state = reg; |
789 | /* set to burst mode */ |
790 | STB0899_SETFIELD_VAL(DISEQCMODE, reg, 0x03); |
791 | STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x01); |
792 | stb0899_write_reg(state, STB0899_DISCNTRL1, data: reg); |
793 | switch (burst) { |
794 | case SEC_MINI_A: |
795 | /* unmodulated */ |
796 | stb0899_write_reg(state, STB0899_DISFIFO, data: 0x00); |
797 | break; |
798 | case SEC_MINI_B: |
799 | /* modulated */ |
800 | stb0899_write_reg(state, STB0899_DISFIFO, data: 0xff); |
801 | break; |
802 | } |
803 | reg = stb0899_read_reg(state, STB0899_DISCNTRL1); |
804 | STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x00); |
805 | stb0899_write_reg(state, STB0899_DISCNTRL1, data: reg); |
806 | /* wait for diseqc idle */ |
807 | if (stb0899_wait_diseqc_txidle(state, timeout: 100) < 0) |
808 | return -ETIMEDOUT; |
809 | |
810 | /* restore state */ |
811 | stb0899_write_reg(state, STB0899_DISCNTRL1, data: old_state); |
812 | |
813 | return 0; |
814 | } |
815 | |
816 | static int stb0899_diseqc_init(struct stb0899_state *state) |
817 | { |
818 | /* |
819 | struct dvb_diseqc_slave_reply rx_data; |
820 | */ |
821 | u8 f22_tx, reg; |
822 | |
823 | u32 mclk, tx_freq = 22000;/* count = 0, i; */ |
824 | reg = stb0899_read_reg(state, STB0899_DISCNTRL2); |
825 | STB0899_SETFIELD_VAL(ONECHIP_TRX, reg, 0); |
826 | stb0899_write_reg(state, STB0899_DISCNTRL2, data: reg); |
827 | |
828 | /* disable Tx spy */ |
829 | reg = stb0899_read_reg(state, STB0899_DISCNTRL1); |
830 | STB0899_SETFIELD_VAL(DISEQCRESET, reg, 1); |
831 | stb0899_write_reg(state, STB0899_DISCNTRL1, data: reg); |
832 | |
833 | reg = stb0899_read_reg(state, STB0899_DISCNTRL1); |
834 | STB0899_SETFIELD_VAL(DISEQCRESET, reg, 0); |
835 | stb0899_write_reg(state, STB0899_DISCNTRL1, data: reg); |
836 | |
837 | mclk = stb0899_get_mclk(state); |
838 | f22_tx = mclk / (tx_freq * 32); |
839 | stb0899_write_reg(state, STB0899_DISF22, data: f22_tx); /* DiSEqC Tx freq */ |
840 | state->rx_freq = 20000; |
841 | |
842 | return 0; |
843 | } |
844 | |
845 | static int stb0899_sleep(struct dvb_frontend *fe) |
846 | { |
847 | struct stb0899_state *state = fe->demodulator_priv; |
848 | /* |
849 | u8 reg; |
850 | */ |
851 | dprintk(state->verbose, FE_DEBUG, 1, "Going to Sleep .. (Really tired .. :-))" ); |
852 | /* post process event */ |
853 | stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, enable: 0); |
854 | |
855 | return 0; |
856 | } |
857 | |
858 | static int stb0899_wakeup(struct dvb_frontend *fe) |
859 | { |
860 | int rc; |
861 | struct stb0899_state *state = fe->demodulator_priv; |
862 | |
863 | if ((rc = stb0899_write_reg(state, STB0899_SYNTCTRL, STB0899_SELOSCI))) |
864 | return rc; |
865 | /* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */ |
866 | if ((rc = stb0899_write_reg(state, STB0899_STOPCLK1, data: 0x00))) |
867 | return rc; |
868 | if ((rc = stb0899_write_reg(state, STB0899_STOPCLK2, data: 0x00))) |
869 | return rc; |
870 | |
871 | /* post process event */ |
872 | stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, enable: 1); |
873 | |
874 | return 0; |
875 | } |
876 | |
877 | static int stb0899_init(struct dvb_frontend *fe) |
878 | { |
879 | int i; |
880 | struct stb0899_state *state = fe->demodulator_priv; |
881 | struct stb0899_config *config = state->config; |
882 | |
883 | dprintk(state->verbose, FE_DEBUG, 1, "Initializing STB0899 ... " ); |
884 | |
885 | /* init device */ |
886 | dprintk(state->verbose, FE_DEBUG, 1, "init device" ); |
887 | for (i = 0; config->init_dev[i].address != 0xffff; i++) |
888 | stb0899_write_reg(state, reg: config->init_dev[i].address, data: config->init_dev[i].data); |
889 | |
890 | dprintk(state->verbose, FE_DEBUG, 1, "init S2 demod" ); |
891 | /* init S2 demod */ |
892 | for (i = 0; config->init_s2_demod[i].offset != 0xffff; i++) |
893 | stb0899_write_s2reg(state, STB0899_S2DEMOD, |
894 | stb0899_base_addr: config->init_s2_demod[i].base_address, |
895 | stb0899_reg_offset: config->init_s2_demod[i].offset, |
896 | stb0899_data: config->init_s2_demod[i].data); |
897 | |
898 | dprintk(state->verbose, FE_DEBUG, 1, "init S1 demod" ); |
899 | /* init S1 demod */ |
900 | for (i = 0; config->init_s1_demod[i].address != 0xffff; i++) |
901 | stb0899_write_reg(state, reg: config->init_s1_demod[i].address, data: config->init_s1_demod[i].data); |
902 | |
903 | dprintk(state->verbose, FE_DEBUG, 1, "init S2 FEC" ); |
904 | /* init S2 fec */ |
905 | for (i = 0; config->init_s2_fec[i].offset != 0xffff; i++) |
906 | stb0899_write_s2reg(state, STB0899_S2FEC, |
907 | stb0899_base_addr: config->init_s2_fec[i].base_address, |
908 | stb0899_reg_offset: config->init_s2_fec[i].offset, |
909 | stb0899_data: config->init_s2_fec[i].data); |
910 | |
911 | dprintk(state->verbose, FE_DEBUG, 1, "init TST" ); |
912 | /* init test */ |
913 | for (i = 0; config->init_tst[i].address != 0xffff; i++) |
914 | stb0899_write_reg(state, reg: config->init_tst[i].address, data: config->init_tst[i].data); |
915 | |
916 | stb0899_init_calc(state); |
917 | stb0899_diseqc_init(state); |
918 | |
919 | return 0; |
920 | } |
921 | |
922 | static int stb0899_table_lookup(const struct stb0899_tab *tab, int max, int val) |
923 | { |
924 | int res = 0; |
925 | int min = 0, med; |
926 | |
927 | if (val < tab[min].read) |
928 | res = tab[min].real; |
929 | else if (val >= tab[max].read) |
930 | res = tab[max].real; |
931 | else { |
932 | while ((max - min) > 1) { |
933 | med = (max + min) / 2; |
934 | if (val >= tab[min].read && val < tab[med].read) |
935 | max = med; |
936 | else |
937 | min = med; |
938 | } |
939 | res = ((val - tab[min].read) * |
940 | (tab[max].real - tab[min].real) / |
941 | (tab[max].read - tab[min].read)) + |
942 | tab[min].real; |
943 | } |
944 | |
945 | return res; |
946 | } |
947 | |
948 | static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength) |
949 | { |
950 | struct stb0899_state *state = fe->demodulator_priv; |
951 | struct stb0899_internal *internal = &state->internal; |
952 | |
953 | int val; |
954 | u32 reg; |
955 | *strength = 0; |
956 | switch (state->delsys) { |
957 | case SYS_DVBS: |
958 | case SYS_DSS: |
959 | if (internal->lock) { |
960 | reg = stb0899_read_reg(state, STB0899_VSTATUS); |
961 | if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) { |
962 | |
963 | reg = stb0899_read_reg(state, STB0899_AGCIQIN); |
964 | val = (s32)(s8)STB0899_GETFIELD(AGCIQVALUE, reg); |
965 | |
966 | *strength = stb0899_table_lookup(tab: stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val); |
967 | *strength += 750; |
968 | dprintk(state->verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm" , |
969 | val & 0xff, *strength); |
970 | } |
971 | } |
972 | break; |
973 | case SYS_DVBS2: |
974 | if (internal->lock) { |
975 | reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_GAIN); |
976 | val = STB0899_GETFIELD(IF_AGC_GAIN, reg); |
977 | |
978 | *strength = stb0899_table_lookup(tab: stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val); |
979 | *strength += 950; |
980 | dprintk(state->verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm" , |
981 | val & 0x3fff, *strength); |
982 | } |
983 | break; |
984 | default: |
985 | dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system" ); |
986 | return -EINVAL; |
987 | } |
988 | |
989 | return 0; |
990 | } |
991 | |
992 | static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr) |
993 | { |
994 | struct stb0899_state *state = fe->demodulator_priv; |
995 | struct stb0899_internal *internal = &state->internal; |
996 | |
997 | unsigned int val, quant, quantn = -1, est, estn = -1; |
998 | u8 buf[2]; |
999 | u32 reg; |
1000 | |
1001 | *snr = 0; |
1002 | reg = stb0899_read_reg(state, STB0899_VSTATUS); |
1003 | switch (state->delsys) { |
1004 | case SYS_DVBS: |
1005 | case SYS_DSS: |
1006 | if (internal->lock) { |
1007 | if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) { |
1008 | |
1009 | stb0899_read_regs(state, STB0899_NIRM, buf, count: 2); |
1010 | val = MAKEWORD16(buf[0], buf[1]); |
1011 | |
1012 | *snr = stb0899_table_lookup(tab: stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val); |
1013 | dprintk(state->verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n" , |
1014 | buf[0], buf[1], val, *snr); |
1015 | } |
1016 | } |
1017 | break; |
1018 | case SYS_DVBS2: |
1019 | if (internal->lock) { |
1020 | reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_CNTRL1); |
1021 | quant = STB0899_GETFIELD(UWP_ESN0_QUANT, reg); |
1022 | reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_STAT2); |
1023 | est = STB0899_GETFIELD(ESN0_EST, reg); |
1024 | if (est == 1) |
1025 | val = 301; /* C/N = 30.1 dB */ |
1026 | else if (est == 2) |
1027 | val = 270; /* C/N = 27.0 dB */ |
1028 | else { |
1029 | /* quantn = 100 * log(quant^2) */ |
1030 | quantn = stb0899_table_lookup(tab: stb0899_quant_tab, ARRAY_SIZE(stb0899_quant_tab) - 1, val: quant * 100); |
1031 | /* estn = 100 * log(est) */ |
1032 | estn = stb0899_table_lookup(tab: stb0899_est_tab, ARRAY_SIZE(stb0899_est_tab) - 1, val: est); |
1033 | /* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */ |
1034 | val = (quantn - estn) / 10; |
1035 | } |
1036 | *snr = val; |
1037 | dprintk(state->verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm" , |
1038 | quant, quantn, est, estn, val); |
1039 | } |
1040 | break; |
1041 | default: |
1042 | dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system" ); |
1043 | return -EINVAL; |
1044 | } |
1045 | |
1046 | return 0; |
1047 | } |
1048 | |
1049 | static int stb0899_read_status(struct dvb_frontend *fe, enum fe_status *status) |
1050 | { |
1051 | struct stb0899_state *state = fe->demodulator_priv; |
1052 | struct stb0899_internal *internal = &state->internal; |
1053 | u8 reg; |
1054 | *status = 0; |
1055 | |
1056 | switch (state->delsys) { |
1057 | case SYS_DVBS: |
1058 | case SYS_DSS: |
1059 | dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S/DSS" ); |
1060 | if (internal->lock) { |
1061 | reg = stb0899_read_reg(state, STB0899_VSTATUS); |
1062 | if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) { |
1063 | dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK" ); |
1064 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK; |
1065 | |
1066 | reg = stb0899_read_reg(state, STB0899_PLPARM); |
1067 | if (STB0899_GETFIELD(VITCURPUN, reg)) { |
1068 | dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC" ); |
1069 | *status |= FE_HAS_VITERBI | FE_HAS_SYNC; |
1070 | /* post process event */ |
1071 | stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, enable: 1); |
1072 | } |
1073 | } |
1074 | } |
1075 | break; |
1076 | case SYS_DVBS2: |
1077 | dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S2" ); |
1078 | if (internal->lock) { |
1079 | reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STAT2); |
1080 | if (STB0899_GETFIELD(UWP_LOCK, reg) && STB0899_GETFIELD(CSM_LOCK, reg)) { |
1081 | *status |= FE_HAS_CARRIER; |
1082 | dprintk(state->verbose, FE_DEBUG, 1, |
1083 | "UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER" ); |
1084 | |
1085 | reg = stb0899_read_reg(state, STB0899_CFGPDELSTATUS1); |
1086 | if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK, reg)) { |
1087 | *status |= FE_HAS_LOCK; |
1088 | dprintk(state->verbose, FE_DEBUG, 1, |
1089 | "Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK" ); |
1090 | |
1091 | } |
1092 | if (STB0899_GETFIELD(CONTINUOUS_STREAM, reg)) { |
1093 | *status |= FE_HAS_VITERBI; |
1094 | dprintk(state->verbose, FE_DEBUG, 1, |
1095 | "Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI" ); |
1096 | } |
1097 | if (STB0899_GETFIELD(ACCEPTED_STREAM, reg)) { |
1098 | *status |= FE_HAS_SYNC; |
1099 | dprintk(state->verbose, FE_DEBUG, 1, |
1100 | "Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC" ); |
1101 | /* post process event */ |
1102 | stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, enable: 1); |
1103 | } |
1104 | } |
1105 | } |
1106 | break; |
1107 | default: |
1108 | dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system" ); |
1109 | return -EINVAL; |
1110 | } |
1111 | return 0; |
1112 | } |
1113 | |
1114 | /* |
1115 | * stb0899_get_error |
1116 | * viterbi error for DVB-S/DSS |
1117 | * packet error for DVB-S2 |
1118 | * Bit Error Rate or Packet Error Rate * 10 ^ 7 |
1119 | */ |
1120 | static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber) |
1121 | { |
1122 | struct stb0899_state *state = fe->demodulator_priv; |
1123 | struct stb0899_internal *internal = &state->internal; |
1124 | |
1125 | u8 lsb, msb; |
1126 | |
1127 | *ber = 0; |
1128 | |
1129 | switch (state->delsys) { |
1130 | case SYS_DVBS: |
1131 | case SYS_DSS: |
1132 | if (internal->lock) { |
1133 | lsb = stb0899_read_reg(state, STB0899_ECNT1L); |
1134 | msb = stb0899_read_reg(state, STB0899_ECNT1M); |
1135 | *ber = MAKEWORD16(msb, lsb); |
1136 | /* Viterbi Check */ |
1137 | if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) { |
1138 | /* Error Rate */ |
1139 | *ber *= 9766; |
1140 | /* ber = ber * 10 ^ 7 */ |
1141 | *ber /= (-1 + (1 << (2 * STB0899_GETFIELD(NOE, internal->err_ctrl)))); |
1142 | *ber /= 8; |
1143 | } |
1144 | } |
1145 | break; |
1146 | case SYS_DVBS2: |
1147 | if (internal->lock) { |
1148 | lsb = stb0899_read_reg(state, STB0899_ECNT1L); |
1149 | msb = stb0899_read_reg(state, STB0899_ECNT1M); |
1150 | *ber = MAKEWORD16(msb, lsb); |
1151 | /* ber = ber * 10 ^ 7 */ |
1152 | *ber *= 10000000; |
1153 | *ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl)))); |
1154 | } |
1155 | break; |
1156 | default: |
1157 | dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system" ); |
1158 | return -EINVAL; |
1159 | } |
1160 | |
1161 | return 0; |
1162 | } |
1163 | |
1164 | static int stb0899_set_voltage(struct dvb_frontend *fe, |
1165 | enum fe_sec_voltage voltage) |
1166 | { |
1167 | struct stb0899_state *state = fe->demodulator_priv; |
1168 | |
1169 | switch (voltage) { |
1170 | case SEC_VOLTAGE_13: |
1171 | stb0899_write_reg(state, STB0899_GPIO00CFG, data: 0x82); |
1172 | stb0899_write_reg(state, STB0899_GPIO01CFG, data: 0x02); |
1173 | stb0899_write_reg(state, STB0899_GPIO02CFG, data: 0x00); |
1174 | break; |
1175 | case SEC_VOLTAGE_18: |
1176 | stb0899_write_reg(state, STB0899_GPIO00CFG, data: 0x02); |
1177 | stb0899_write_reg(state, STB0899_GPIO01CFG, data: 0x02); |
1178 | stb0899_write_reg(state, STB0899_GPIO02CFG, data: 0x82); |
1179 | break; |
1180 | case SEC_VOLTAGE_OFF: |
1181 | stb0899_write_reg(state, STB0899_GPIO00CFG, data: 0x82); |
1182 | stb0899_write_reg(state, STB0899_GPIO01CFG, data: 0x82); |
1183 | stb0899_write_reg(state, STB0899_GPIO02CFG, data: 0x82); |
1184 | break; |
1185 | default: |
1186 | return -EINVAL; |
1187 | } |
1188 | |
1189 | return 0; |
1190 | } |
1191 | |
1192 | static int stb0899_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone) |
1193 | { |
1194 | struct stb0899_state *state = fe->demodulator_priv; |
1195 | struct stb0899_internal *internal = &state->internal; |
1196 | |
1197 | u8 div, reg; |
1198 | |
1199 | /* wait for diseqc idle */ |
1200 | if (stb0899_wait_diseqc_txidle(state, timeout: 100) < 0) |
1201 | return -ETIMEDOUT; |
1202 | |
1203 | switch (tone) { |
1204 | case SEC_TONE_ON: |
1205 | div = (internal->master_clk / 100) / 5632; |
1206 | div = (div + 5) / 10; |
1207 | stb0899_write_reg(state, STB0899_DISEQCOCFG, data: 0x66); |
1208 | reg = stb0899_read_reg(state, STB0899_ACRPRESC); |
1209 | STB0899_SETFIELD_VAL(ACRPRESC, reg, 0x03); |
1210 | stb0899_write_reg(state, STB0899_ACRPRESC, data: reg); |
1211 | stb0899_write_reg(state, STB0899_ACRDIV1, data: div); |
1212 | break; |
1213 | case SEC_TONE_OFF: |
1214 | stb0899_write_reg(state, STB0899_DISEQCOCFG, data: 0x20); |
1215 | break; |
1216 | default: |
1217 | return -EINVAL; |
1218 | } |
1219 | return 0; |
1220 | } |
1221 | |
1222 | int stb0899_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) |
1223 | { |
1224 | int i2c_stat; |
1225 | struct stb0899_state *state = fe->demodulator_priv; |
1226 | |
1227 | i2c_stat = stb0899_read_reg(state, STB0899_I2CRPT); |
1228 | if (i2c_stat < 0) |
1229 | goto err; |
1230 | |
1231 | if (enable) { |
1232 | dprintk(state->verbose, FE_DEBUG, 1, "Enabling I2C Repeater ..." ); |
1233 | i2c_stat |= STB0899_I2CTON; |
1234 | if (stb0899_write_reg(state, STB0899_I2CRPT, data: i2c_stat) < 0) |
1235 | goto err; |
1236 | } else { |
1237 | dprintk(state->verbose, FE_DEBUG, 1, "Disabling I2C Repeater ..." ); |
1238 | i2c_stat &= ~STB0899_I2CTON; |
1239 | if (stb0899_write_reg(state, STB0899_I2CRPT, data: i2c_stat) < 0) |
1240 | goto err; |
1241 | } |
1242 | return 0; |
1243 | err: |
1244 | dprintk(state->verbose, FE_ERROR, 1, "I2C Repeater control failed" ); |
1245 | return -EREMOTEIO; |
1246 | } |
1247 | |
1248 | |
1249 | static inline void CONVERT32(u32 x, char *str) |
1250 | { |
1251 | *str++ = (x >> 24) & 0xff; |
1252 | *str++ = (x >> 16) & 0xff; |
1253 | *str++ = (x >> 8) & 0xff; |
1254 | *str++ = (x >> 0) & 0xff; |
1255 | *str = '\0'; |
1256 | } |
1257 | |
1258 | static int stb0899_get_dev_id(struct stb0899_state *state) |
1259 | { |
1260 | u8 chip_id, release; |
1261 | u16 id; |
1262 | u32 demod_ver = 0, fec_ver = 0; |
1263 | char demod_str[5] = { 0 }; |
1264 | char fec_str[5] = { 0 }; |
1265 | |
1266 | id = stb0899_read_reg(state, STB0899_DEV_ID); |
1267 | dprintk(state->verbose, FE_DEBUG, 1, "ID reg=[0x%02x]" , id); |
1268 | chip_id = STB0899_GETFIELD(CHIP_ID, id); |
1269 | release = STB0899_GETFIELD(CHIP_REL, id); |
1270 | |
1271 | dprintk(state->verbose, FE_ERROR, 1, "Device ID=[%d], Release=[%d]" , |
1272 | chip_id, release); |
1273 | |
1274 | CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_CORE_ID), str: (char *)&demod_str); |
1275 | |
1276 | demod_ver = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_VERSION_ID); |
1277 | dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]" , (char *) &demod_str, demod_ver); |
1278 | CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), str: (char *)&fec_str); |
1279 | fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG); |
1280 | if (! (chip_id > 0)) { |
1281 | dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899" ); |
1282 | |
1283 | return -ENODEV; |
1284 | } |
1285 | dprintk(state->verbose, FE_ERROR, 1, "FEC Core ID=[%s], Version=[%d]" , (char*) &fec_str, fec_ver); |
1286 | |
1287 | return 0; |
1288 | } |
1289 | |
1290 | static void stb0899_set_delivery(struct stb0899_state *state) |
1291 | { |
1292 | u8 reg; |
1293 | u8 stop_clk[2]; |
1294 | |
1295 | stop_clk[0] = stb0899_read_reg(state, STB0899_STOPCLK1); |
1296 | stop_clk[1] = stb0899_read_reg(state, STB0899_STOPCLK2); |
1297 | |
1298 | switch (state->delsys) { |
1299 | case SYS_DVBS: |
1300 | dprintk(state->verbose, FE_DEBUG, 1, "Delivery System -- DVB-S" ); |
1301 | /* FECM/Viterbi ON */ |
1302 | reg = stb0899_read_reg(state, STB0899_FECM); |
1303 | STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0); |
1304 | STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1); |
1305 | stb0899_write_reg(state, STB0899_FECM, data: reg); |
1306 | |
1307 | stb0899_write_reg(state, STB0899_RSULC, data: 0xb1); |
1308 | stb0899_write_reg(state, STB0899_TSULC, data: 0x40); |
1309 | stb0899_write_reg(state, STB0899_RSLLC, data: 0x42); |
1310 | stb0899_write_reg(state, STB0899_TSLPL, data: 0x12); |
1311 | |
1312 | reg = stb0899_read_reg(state, STB0899_TSTRES); |
1313 | STB0899_SETFIELD_VAL(FRESLDPC, reg, 1); |
1314 | stb0899_write_reg(state, STB0899_TSTRES, data: reg); |
1315 | |
1316 | STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1); |
1317 | STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1); |
1318 | STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1); |
1319 | |
1320 | STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1); |
1321 | STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1); |
1322 | |
1323 | STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 1); |
1324 | STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0); |
1325 | |
1326 | STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1); |
1327 | break; |
1328 | case SYS_DVBS2: |
1329 | /* FECM/Viterbi OFF */ |
1330 | reg = stb0899_read_reg(state, STB0899_FECM); |
1331 | STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0); |
1332 | STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 0); |
1333 | stb0899_write_reg(state, STB0899_FECM, data: reg); |
1334 | |
1335 | stb0899_write_reg(state, STB0899_RSULC, data: 0xb1); |
1336 | stb0899_write_reg(state, STB0899_TSULC, data: 0x42); |
1337 | stb0899_write_reg(state, STB0899_RSLLC, data: 0x40); |
1338 | stb0899_write_reg(state, STB0899_TSLPL, data: 0x02); |
1339 | |
1340 | reg = stb0899_read_reg(state, STB0899_TSTRES); |
1341 | STB0899_SETFIELD_VAL(FRESLDPC, reg, 0); |
1342 | stb0899_write_reg(state, STB0899_TSTRES, data: reg); |
1343 | |
1344 | STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1); |
1345 | STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 0); |
1346 | STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 0); |
1347 | |
1348 | STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 0); |
1349 | STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 0); |
1350 | |
1351 | STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 0); |
1352 | STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0); |
1353 | |
1354 | STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 0); |
1355 | break; |
1356 | case SYS_DSS: |
1357 | /* FECM/Viterbi ON */ |
1358 | reg = stb0899_read_reg(state, STB0899_FECM); |
1359 | STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 1); |
1360 | STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1); |
1361 | stb0899_write_reg(state, STB0899_FECM, data: reg); |
1362 | |
1363 | stb0899_write_reg(state, STB0899_RSULC, data: 0xa1); |
1364 | stb0899_write_reg(state, STB0899_TSULC, data: 0x61); |
1365 | stb0899_write_reg(state, STB0899_RSLLC, data: 0x42); |
1366 | |
1367 | reg = stb0899_read_reg(state, STB0899_TSTRES); |
1368 | STB0899_SETFIELD_VAL(FRESLDPC, reg, 1); |
1369 | stb0899_write_reg(state, STB0899_TSTRES, data: reg); |
1370 | |
1371 | STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1); |
1372 | STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1); |
1373 | STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1); |
1374 | |
1375 | STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1); |
1376 | STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1); |
1377 | |
1378 | STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0); |
1379 | |
1380 | STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1); |
1381 | break; |
1382 | default: |
1383 | dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system" ); |
1384 | break; |
1385 | } |
1386 | STB0899_SETFIELD_VAL(STOP_CKADCI108, stop_clk[0], 0); |
1387 | stb0899_write_regs(state, STB0899_STOPCLK1, data: stop_clk, count: 2); |
1388 | } |
1389 | |
1390 | /* |
1391 | * stb0899_set_iterations |
1392 | * set the LDPC iteration scale function |
1393 | */ |
1394 | static void stb0899_set_iterations(struct stb0899_state *state) |
1395 | { |
1396 | struct stb0899_internal *internal = &state->internal; |
1397 | struct stb0899_config *config = state->config; |
1398 | |
1399 | s32 iter_scale; |
1400 | u32 reg; |
1401 | |
1402 | iter_scale = 17 * (internal->master_clk / 1000); |
1403 | iter_scale += 410000; |
1404 | iter_scale /= (internal->srate / 1000000); |
1405 | iter_scale /= 1000; |
1406 | |
1407 | if (iter_scale > config->ldpc_max_iter) |
1408 | iter_scale = config->ldpc_max_iter; |
1409 | |
1410 | reg = STB0899_READ_S2REG(STB0899_S2FEC, MAX_ITER); |
1411 | STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale); |
1412 | stb0899_write_s2reg(state, STB0899_S2FEC, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, stb0899_data: reg); |
1413 | } |
1414 | |
1415 | static enum dvbfe_search stb0899_search(struct dvb_frontend *fe) |
1416 | { |
1417 | struct stb0899_state *state = fe->demodulator_priv; |
1418 | struct stb0899_params *i_params = &state->params; |
1419 | struct stb0899_internal *internal = &state->internal; |
1420 | struct stb0899_config *config = state->config; |
1421 | struct dtv_frontend_properties *props = &fe->dtv_property_cache; |
1422 | |
1423 | u32 SearchRange, gain; |
1424 | |
1425 | i_params->freq = props->frequency; |
1426 | i_params->srate = props->symbol_rate; |
1427 | state->delsys = props->delivery_system; |
1428 | dprintk(state->verbose, FE_DEBUG, 1, "delivery system=%d" , state->delsys); |
1429 | |
1430 | SearchRange = 10000000; |
1431 | dprintk(state->verbose, FE_DEBUG, 1, "Frequency=%d, Srate=%d" , i_params->freq, i_params->srate); |
1432 | /* checking Search Range is meaningless for a fixed 3 Mhz */ |
1433 | if (INRANGE(i_params->srate, 1000000, 45000000)) { |
1434 | dprintk(state->verbose, FE_DEBUG, 1, "Parameters IN RANGE" ); |
1435 | stb0899_set_delivery(state); |
1436 | |
1437 | if (state->config->tuner_set_rfsiggain) { |
1438 | if (internal->srate > 15000000) |
1439 | gain = 8; /* 15Mb < srate < 45Mb, gain = 8dB */ |
1440 | else if (internal->srate > 5000000) |
1441 | gain = 12; /* 5Mb < srate < 15Mb, gain = 12dB */ |
1442 | else |
1443 | gain = 14; /* 1Mb < srate < 5Mb, gain = 14db */ |
1444 | state->config->tuner_set_rfsiggain(fe, gain); |
1445 | } |
1446 | |
1447 | if (i_params->srate <= 5000000) |
1448 | stb0899_set_mclk(state, Mclk: config->lo_clk); |
1449 | else |
1450 | stb0899_set_mclk(state, Mclk: config->hi_clk); |
1451 | |
1452 | switch (state->delsys) { |
1453 | case SYS_DVBS: |
1454 | case SYS_DSS: |
1455 | dprintk(state->verbose, FE_DEBUG, 1, "DVB-S delivery system" ); |
1456 | internal->freq = i_params->freq; |
1457 | internal->srate = i_params->srate; |
1458 | /* |
1459 | * search = user search range + |
1460 | * 500Khz + |
1461 | * 2 * Tuner_step_size + |
1462 | * 10% of the symbol rate |
1463 | */ |
1464 | internal->srch_range = SearchRange + 1500000 + (i_params->srate / 5); |
1465 | internal->derot_percent = 30; |
1466 | |
1467 | /* What to do for tuners having no bandwidth setup ? */ |
1468 | /* enable tuner I/O */ |
1469 | stb0899_i2c_gate_ctrl(fe: &state->frontend, enable: 1); |
1470 | |
1471 | if (state->config->tuner_set_bandwidth) |
1472 | state->config->tuner_set_bandwidth(fe, (13 * (stb0899_carr_width(state) + SearchRange)) / 10); |
1473 | if (state->config->tuner_get_bandwidth) |
1474 | state->config->tuner_get_bandwidth(fe, &internal->tuner_bw); |
1475 | |
1476 | /* disable tuner I/O */ |
1477 | stb0899_i2c_gate_ctrl(fe: &state->frontend, enable: 0); |
1478 | |
1479 | /* Set DVB-S1 AGC */ |
1480 | stb0899_write_reg(state, STB0899_AGCRFCFG, data: 0x11); |
1481 | |
1482 | /* Run the search algorithm */ |
1483 | dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S search algo .." ); |
1484 | if (stb0899_dvbs_algo(state) == RANGEOK) { |
1485 | internal->lock = 1; |
1486 | dprintk(state->verbose, FE_DEBUG, 1, |
1487 | "-------------------------------------> DVB-S LOCK !" ); |
1488 | |
1489 | // stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors */ |
1490 | // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS); |
1491 | // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1); |
1492 | // dprintk(state->verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status); |
1493 | // dprintk(state->verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl); |
1494 | |
1495 | return DVBFE_ALGO_SEARCH_SUCCESS; |
1496 | } else { |
1497 | internal->lock = 0; |
1498 | |
1499 | return DVBFE_ALGO_SEARCH_FAILED; |
1500 | } |
1501 | break; |
1502 | case SYS_DVBS2: |
1503 | internal->freq = i_params->freq; |
1504 | internal->srate = i_params->srate; |
1505 | internal->srch_range = SearchRange; |
1506 | |
1507 | /* enable tuner I/O */ |
1508 | stb0899_i2c_gate_ctrl(fe: &state->frontend, enable: 1); |
1509 | |
1510 | if (state->config->tuner_set_bandwidth) |
1511 | state->config->tuner_set_bandwidth(fe, (stb0899_carr_width(state) + SearchRange)); |
1512 | if (state->config->tuner_get_bandwidth) |
1513 | state->config->tuner_get_bandwidth(fe, &internal->tuner_bw); |
1514 | |
1515 | /* disable tuner I/O */ |
1516 | stb0899_i2c_gate_ctrl(fe: &state->frontend, enable: 0); |
1517 | |
1518 | // pParams->SpectralInv = pSearch->IQ_Inversion; |
1519 | |
1520 | /* Set DVB-S2 AGC */ |
1521 | stb0899_write_reg(state, STB0899_AGCRFCFG, data: 0x1c); |
1522 | |
1523 | /* Set IterScale =f(MCLK,SYMB) */ |
1524 | stb0899_set_iterations(state); |
1525 | |
1526 | /* Run the search algorithm */ |
1527 | dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S2 search algo .." ); |
1528 | if (stb0899_dvbs2_algo(state) == DVBS2_FEC_LOCK) { |
1529 | internal->lock = 1; |
1530 | dprintk(state->verbose, FE_DEBUG, 1, |
1531 | "-------------------------------------> DVB-S2 LOCK !" ); |
1532 | |
1533 | // stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors */ |
1534 | // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS); |
1535 | // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1); |
1536 | |
1537 | return DVBFE_ALGO_SEARCH_SUCCESS; |
1538 | } else { |
1539 | internal->lock = 0; |
1540 | |
1541 | return DVBFE_ALGO_SEARCH_FAILED; |
1542 | } |
1543 | break; |
1544 | default: |
1545 | dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system" ); |
1546 | return DVBFE_ALGO_SEARCH_INVALID; |
1547 | } |
1548 | } |
1549 | |
1550 | return DVBFE_ALGO_SEARCH_ERROR; |
1551 | } |
1552 | |
1553 | static int stb0899_get_frontend(struct dvb_frontend *fe, |
1554 | struct dtv_frontend_properties *p) |
1555 | { |
1556 | struct stb0899_state *state = fe->demodulator_priv; |
1557 | struct stb0899_internal *internal = &state->internal; |
1558 | |
1559 | dprintk(state->verbose, FE_DEBUG, 1, "Get params" ); |
1560 | p->symbol_rate = internal->srate; |
1561 | p->frequency = internal->freq; |
1562 | |
1563 | return 0; |
1564 | } |
1565 | |
1566 | static enum dvbfe_algo stb0899_frontend_algo(struct dvb_frontend *fe) |
1567 | { |
1568 | return DVBFE_ALGO_CUSTOM; |
1569 | } |
1570 | |
1571 | static const struct dvb_frontend_ops stb0899_ops = { |
1572 | .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS }, |
1573 | .info = { |
1574 | .name = "STB0899 Multistandard" , |
1575 | .frequency_min_hz = 950 * MHz, |
1576 | .frequency_max_hz = 2150 * MHz, |
1577 | .symbol_rate_min = 5000000, |
1578 | .symbol_rate_max = 45000000, |
1579 | |
1580 | .caps = FE_CAN_INVERSION_AUTO | |
1581 | FE_CAN_FEC_AUTO | |
1582 | FE_CAN_2G_MODULATION | |
1583 | FE_CAN_QPSK |
1584 | }, |
1585 | |
1586 | .detach = stb0899_detach, |
1587 | .release = stb0899_release, |
1588 | .init = stb0899_init, |
1589 | .sleep = stb0899_sleep, |
1590 | // .wakeup = stb0899_wakeup, |
1591 | |
1592 | .i2c_gate_ctrl = stb0899_i2c_gate_ctrl, |
1593 | |
1594 | .get_frontend_algo = stb0899_frontend_algo, |
1595 | .search = stb0899_search, |
1596 | .get_frontend = stb0899_get_frontend, |
1597 | |
1598 | |
1599 | .read_status = stb0899_read_status, |
1600 | .read_snr = stb0899_read_snr, |
1601 | .read_signal_strength = stb0899_read_signal_strength, |
1602 | .read_ber = stb0899_read_ber, |
1603 | |
1604 | .set_voltage = stb0899_set_voltage, |
1605 | .set_tone = stb0899_set_tone, |
1606 | |
1607 | .diseqc_send_master_cmd = stb0899_send_diseqc_msg, |
1608 | .diseqc_recv_slave_reply = stb0899_recv_slave_reply, |
1609 | .diseqc_send_burst = stb0899_send_diseqc_burst, |
1610 | }; |
1611 | |
1612 | struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c) |
1613 | { |
1614 | struct stb0899_state *state = NULL; |
1615 | |
1616 | state = kzalloc(size: sizeof (struct stb0899_state), GFP_KERNEL); |
1617 | if (state == NULL) |
1618 | goto error; |
1619 | |
1620 | state->verbose = &verbose; |
1621 | state->config = config; |
1622 | state->i2c = i2c; |
1623 | state->frontend.ops = stb0899_ops; |
1624 | state->frontend.demodulator_priv = state; |
1625 | /* use configured inversion as default -- we'll later autodetect inversion */ |
1626 | state->internal.inversion = config->inversion; |
1627 | |
1628 | stb0899_wakeup(fe: &state->frontend); |
1629 | if (stb0899_get_dev_id(state) == -ENODEV) { |
1630 | printk("%s: Exiting .. !\n" , __func__); |
1631 | goto error; |
1632 | } |
1633 | |
1634 | printk("%s: Attaching STB0899 \n" , __func__); |
1635 | return &state->frontend; |
1636 | |
1637 | error: |
1638 | kfree(objp: state); |
1639 | return NULL; |
1640 | } |
1641 | EXPORT_SYMBOL_GPL(stb0899_attach); |
1642 | MODULE_PARM_DESC(verbose, "Set Verbosity level" ); |
1643 | MODULE_AUTHOR("Manu Abraham" ); |
1644 | MODULE_DESCRIPTION("STB0899 Multi-Std frontend" ); |
1645 | MODULE_LICENSE("GPL" ); |
1646 | |