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f15da16d | 1 | /* |
b80dc1c6 DW |
2 | * Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator |
3 | * LGS8913, LGS8GL5, LGS8G75 | |
f15da16d DW |
4 | * experimental support LGS8G42, LGS8G52 |
5 | * | |
b80dc1c6 | 6 | * Copyright (C) 2007-2009 David T.L. Wong <davidtlwong@gmail.com> |
f15da16d DW |
7 | * Copyright (C) 2008 Sirius International (Hong Kong) Limited |
8 | * Timothy Lee <timothy.lee@siriushk.com> (for initial work on LGS8GL5) | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | * | |
24 | */ | |
25 | ||
26 | #include <asm/div64.h> | |
27 | ||
28 | #include "dvb_frontend.h" | |
29 | ||
30 | #include "lgs8gxx.h" | |
31 | #include "lgs8gxx_priv.h" | |
32 | ||
33 | #define dprintk(args...) \ | |
34 | do { \ | |
35 | if (debug) \ | |
36 | printk(KERN_DEBUG "lgs8gxx: " args); \ | |
37 | } while (0) | |
38 | ||
39 | static int debug; | |
ba7d457d | 40 | static int fake_signal_str = 1; |
f15da16d DW |
41 | |
42 | module_param(debug, int, 0644); | |
43 | MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); | |
44 | ||
45 | module_param(fake_signal_str, int, 0644); | |
46 | MODULE_PARM_DESC(fake_signal_str, "fake signal strength for LGS8913." | |
ba7d457d | 47 | "Signal strength calculation is slow.(default:on)."); |
f15da16d | 48 | |
b80dc1c6 DW |
49 | static const u8 lgs8g75_initdat[] = { |
50 | 0x01, 0x30, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, | |
51 | 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, | |
52 | 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, | |
53 | 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, | |
54 | 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, | |
55 | 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, | |
56 | 0xE4, 0xF5, 0xA8, 0xF5, 0xB8, 0xF5, 0x88, 0xF5, | |
57 | 0x89, 0xF5, 0x87, 0x75, 0xD0, 0x00, 0x11, 0x50, | |
58 | 0x11, 0x50, 0xF4, 0xF5, 0x80, 0xF5, 0x90, 0xF5, | |
59 | 0xA0, 0xF5, 0xB0, 0x75, 0x81, 0x30, 0x80, 0x01, | |
60 | 0x32, 0x90, 0x80, 0x12, 0x74, 0xFF, 0xF0, 0x90, | |
61 | 0x80, 0x13, 0x74, 0x1F, 0xF0, 0x90, 0x80, 0x23, | |
62 | 0x74, 0x01, 0xF0, 0x90, 0x80, 0x22, 0xF0, 0x90, | |
63 | 0x00, 0x48, 0x74, 0x00, 0xF0, 0x90, 0x80, 0x4D, | |
64 | 0x74, 0x05, 0xF0, 0x90, 0x80, 0x09, 0xE0, 0x60, | |
65 | 0x21, 0x12, 0x00, 0xDD, 0x14, 0x60, 0x1B, 0x12, | |
66 | 0x00, 0xDD, 0x14, 0x60, 0x15, 0x12, 0x00, 0xDD, | |
67 | 0x14, 0x60, 0x0F, 0x12, 0x00, 0xDD, 0x14, 0x60, | |
68 | 0x09, 0x12, 0x00, 0xDD, 0x14, 0x60, 0x03, 0x12, | |
69 | 0x00, 0xDD, 0x90, 0x80, 0x42, 0xE0, 0x60, 0x0B, | |
70 | 0x14, 0x60, 0x0C, 0x14, 0x60, 0x0D, 0x14, 0x60, | |
71 | 0x0E, 0x01, 0xB3, 0x74, 0x04, 0x01, 0xB9, 0x74, | |
72 | 0x05, 0x01, 0xB9, 0x74, 0x07, 0x01, 0xB9, 0x74, | |
73 | 0x0A, 0xC0, 0xE0, 0x74, 0xC8, 0x12, 0x00, 0xE2, | |
74 | 0xD0, 0xE0, 0x14, 0x70, 0xF4, 0x90, 0x80, 0x09, | |
75 | 0xE0, 0x70, 0xAE, 0x12, 0x00, 0xF6, 0x12, 0x00, | |
76 | 0xFE, 0x90, 0x00, 0x48, 0xE0, 0x04, 0xF0, 0x90, | |
77 | 0x80, 0x4E, 0xF0, 0x01, 0x73, 0x90, 0x80, 0x08, | |
78 | 0xF0, 0x22, 0xF8, 0x7A, 0x0C, 0x79, 0xFD, 0x00, | |
79 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD9, | |
80 | 0xF6, 0xDA, 0xF2, 0xD8, 0xEE, 0x22, 0x90, 0x80, | |
81 | 0x65, 0xE0, 0x54, 0xFD, 0xF0, 0x22, 0x90, 0x80, | |
82 | 0x65, 0xE0, 0x44, 0xC2, 0xF0, 0x22 | |
83 | }; | |
84 | ||
f15da16d DW |
85 | /* LGS8GXX internal helper functions */ |
86 | ||
87 | static int lgs8gxx_write_reg(struct lgs8gxx_state *priv, u8 reg, u8 data) | |
88 | { | |
89 | int ret; | |
90 | u8 buf[] = { reg, data }; | |
91 | struct i2c_msg msg = { .flags = 0, .buf = buf, .len = 2 }; | |
92 | ||
93 | msg.addr = priv->config->demod_address; | |
b80dc1c6 | 94 | if (priv->config->prod != LGS8GXX_PROD_LGS8G75 && reg >= 0xC0) |
f15da16d DW |
95 | msg.addr += 0x02; |
96 | ||
97 | if (debug >= 2) | |
98 | printk(KERN_DEBUG "%s: reg=0x%02X, data=0x%02X\n", | |
99 | __func__, reg, data); | |
100 | ||
101 | ret = i2c_transfer(priv->i2c, &msg, 1); | |
102 | ||
103 | if (ret != 1) | |
104 | dprintk(KERN_DEBUG "%s: error reg=0x%x, data=0x%x, ret=%i\n", | |
105 | __func__, reg, data, ret); | |
106 | ||
107 | return (ret != 1) ? -1 : 0; | |
108 | } | |
109 | ||
110 | static int lgs8gxx_read_reg(struct lgs8gxx_state *priv, u8 reg, u8 *p_data) | |
111 | { | |
112 | int ret; | |
113 | u8 dev_addr; | |
114 | ||
115 | u8 b0[] = { reg }; | |
116 | u8 b1[] = { 0 }; | |
117 | struct i2c_msg msg[] = { | |
118 | { .flags = 0, .buf = b0, .len = 1 }, | |
119 | { .flags = I2C_M_RD, .buf = b1, .len = 1 }, | |
120 | }; | |
121 | ||
122 | dev_addr = priv->config->demod_address; | |
b80dc1c6 | 123 | if (priv->config->prod != LGS8GXX_PROD_LGS8G75 && reg >= 0xC0) |
f15da16d DW |
124 | dev_addr += 0x02; |
125 | msg[1].addr = msg[0].addr = dev_addr; | |
126 | ||
127 | ret = i2c_transfer(priv->i2c, msg, 2); | |
128 | if (ret != 2) { | |
129 | dprintk(KERN_DEBUG "%s: error reg=0x%x, ret=%i\n", | |
130 | __func__, reg, ret); | |
131 | return -1; | |
132 | } | |
133 | ||
134 | *p_data = b1[0]; | |
135 | if (debug >= 2) | |
136 | printk(KERN_DEBUG "%s: reg=0x%02X, data=0x%02X\n", | |
137 | __func__, reg, b1[0]); | |
138 | return 0; | |
139 | } | |
140 | ||
141 | static int lgs8gxx_soft_reset(struct lgs8gxx_state *priv) | |
142 | { | |
143 | lgs8gxx_write_reg(priv, 0x02, 0x00); | |
144 | msleep(1); | |
145 | lgs8gxx_write_reg(priv, 0x02, 0x01); | |
146 | msleep(100); | |
147 | ||
148 | return 0; | |
149 | } | |
150 | ||
b80dc1c6 DW |
151 | static int wait_reg_mask(struct lgs8gxx_state *priv, u8 reg, u8 mask, |
152 | u8 val, u8 delay, u8 tries) | |
153 | { | |
154 | u8 t; | |
155 | int i; | |
156 | ||
157 | for (i = 0; i < tries; i++) { | |
158 | lgs8gxx_read_reg(priv, reg, &t); | |
159 | ||
160 | if ((t & mask) == val) | |
161 | return 0; | |
162 | msleep(delay); | |
163 | } | |
164 | ||
165 | return 1; | |
166 | } | |
167 | ||
f15da16d DW |
168 | static int lgs8gxx_set_ad_mode(struct lgs8gxx_state *priv) |
169 | { | |
170 | const struct lgs8gxx_config *config = priv->config; | |
171 | u8 if_conf; | |
172 | ||
b80dc1c6 | 173 | if_conf = 0x10; /* AGC output on, RF_AGC output off; */ |
f15da16d DW |
174 | |
175 | if_conf |= | |
176 | ((config->ext_adc) ? 0x80 : 0x00) | | |
177 | ((config->if_neg_center) ? 0x04 : 0x00) | | |
178 | ((config->if_freq == 0) ? 0x08 : 0x00) | /* Baseband */ | |
b80dc1c6 DW |
179 | ((config->adc_signed) ? 0x02 : 0x00) | |
180 | ((config->if_neg_edge) ? 0x01 : 0x00); | |
f15da16d DW |
181 | |
182 | if (config->ext_adc && | |
183 | (config->prod == LGS8GXX_PROD_LGS8G52)) { | |
184 | lgs8gxx_write_reg(priv, 0xBA, 0x40); | |
185 | } | |
186 | ||
187 | lgs8gxx_write_reg(priv, 0x07, if_conf); | |
188 | ||
189 | return 0; | |
190 | } | |
191 | ||
192 | static int lgs8gxx_set_if_freq(struct lgs8gxx_state *priv, u32 freq /*in kHz*/) | |
193 | { | |
194 | u64 val; | |
195 | u32 v32; | |
196 | u32 if_clk; | |
197 | ||
198 | if_clk = priv->config->if_clk_freq; | |
199 | ||
200 | val = freq; | |
201 | if (freq != 0) { | |
3ab1b9ce | 202 | val <<= 32; |
f15da16d DW |
203 | if (if_clk != 0) |
204 | do_div(val, if_clk); | |
205 | v32 = val & 0xFFFFFFFF; | |
206 | dprintk("Set IF Freq to %dkHz\n", freq); | |
207 | } else { | |
208 | v32 = 0; | |
209 | dprintk("Set IF Freq to baseband\n"); | |
210 | } | |
211 | dprintk("AFC_INIT_FREQ = 0x%08X\n", v32); | |
212 | ||
b80dc1c6 DW |
213 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) { |
214 | lgs8gxx_write_reg(priv, 0x08, 0xFF & (v32)); | |
215 | lgs8gxx_write_reg(priv, 0x09, 0xFF & (v32 >> 8)); | |
216 | lgs8gxx_write_reg(priv, 0x0A, 0xFF & (v32 >> 16)); | |
217 | lgs8gxx_write_reg(priv, 0x0B, 0xFF & (v32 >> 24)); | |
218 | } else { | |
219 | lgs8gxx_write_reg(priv, 0x09, 0xFF & (v32)); | |
220 | lgs8gxx_write_reg(priv, 0x0A, 0xFF & (v32 >> 8)); | |
221 | lgs8gxx_write_reg(priv, 0x0B, 0xFF & (v32 >> 16)); | |
222 | lgs8gxx_write_reg(priv, 0x0C, 0xFF & (v32 >> 24)); | |
223 | } | |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
228 | static int lgs8gxx_get_afc_phase(struct lgs8gxx_state *priv) | |
229 | { | |
230 | u64 val; | |
231 | u32 v32 = 0; | |
232 | u8 reg_addr, t; | |
233 | int i; | |
234 | ||
235 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) | |
236 | reg_addr = 0x23; | |
237 | else | |
238 | reg_addr = 0x48; | |
239 | ||
240 | for (i = 0; i < 4; i++) { | |
241 | lgs8gxx_read_reg(priv, reg_addr, &t); | |
242 | v32 <<= 8; | |
243 | v32 |= t; | |
244 | reg_addr--; | |
245 | } | |
f15da16d | 246 | |
b80dc1c6 DW |
247 | val = v32; |
248 | val *= priv->config->if_clk_freq; | |
3ab1b9ce | 249 | val >>= 32; |
b80dc1c6 | 250 | dprintk("AFC = %u kHz\n", (u32)val); |
f15da16d DW |
251 | return 0; |
252 | } | |
253 | ||
254 | static int lgs8gxx_set_mode_auto(struct lgs8gxx_state *priv) | |
255 | { | |
256 | u8 t; | |
b80dc1c6 | 257 | u8 prod = priv->config->prod; |
f15da16d | 258 | |
b80dc1c6 | 259 | if (prod == LGS8GXX_PROD_LGS8913) |
f15da16d DW |
260 | lgs8gxx_write_reg(priv, 0xC6, 0x01); |
261 | ||
b80dc1c6 DW |
262 | if (prod == LGS8GXX_PROD_LGS8G75) { |
263 | lgs8gxx_read_reg(priv, 0x0C, &t); | |
264 | t &= (~0x04); | |
265 | lgs8gxx_write_reg(priv, 0x0C, t | 0x80); | |
266 | lgs8gxx_write_reg(priv, 0x39, 0x00); | |
267 | lgs8gxx_write_reg(priv, 0x3D, 0x04); | |
268 | } else if (prod == LGS8GXX_PROD_LGS8913 || | |
269 | prod == LGS8GXX_PROD_LGS8GL5 || | |
270 | prod == LGS8GXX_PROD_LGS8G42 || | |
271 | prod == LGS8GXX_PROD_LGS8G52 || | |
272 | prod == LGS8GXX_PROD_LGS8G54) { | |
273 | lgs8gxx_read_reg(priv, 0x7E, &t); | |
274 | lgs8gxx_write_reg(priv, 0x7E, t | 0x01); | |
275 | ||
276 | /* clear FEC self reset */ | |
277 | lgs8gxx_read_reg(priv, 0xC5, &t); | |
278 | lgs8gxx_write_reg(priv, 0xC5, t & 0xE0); | |
279 | } | |
f15da16d | 280 | |
b80dc1c6 | 281 | if (prod == LGS8GXX_PROD_LGS8913) { |
f15da16d DW |
282 | /* FEC auto detect */ |
283 | lgs8gxx_write_reg(priv, 0xC1, 0x03); | |
284 | ||
285 | lgs8gxx_read_reg(priv, 0x7C, &t); | |
286 | t = (t & 0x8C) | 0x03; | |
287 | lgs8gxx_write_reg(priv, 0x7C, t); | |
f15da16d | 288 | |
f15da16d DW |
289 | /* BER test mode */ |
290 | lgs8gxx_read_reg(priv, 0xC3, &t); | |
291 | t = (t & 0xEF) | 0x10; | |
292 | lgs8gxx_write_reg(priv, 0xC3, t); | |
293 | } | |
294 | ||
295 | if (priv->config->prod == LGS8GXX_PROD_LGS8G52) | |
296 | lgs8gxx_write_reg(priv, 0xD9, 0x40); | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
301 | static int lgs8gxx_set_mode_manual(struct lgs8gxx_state *priv) | |
302 | { | |
303 | int ret = 0; | |
304 | u8 t; | |
305 | ||
b80dc1c6 DW |
306 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) { |
307 | u8 t2; | |
308 | lgs8gxx_read_reg(priv, 0x0C, &t); | |
309 | t &= (~0x80); | |
310 | lgs8gxx_write_reg(priv, 0x0C, t); | |
311 | ||
312 | lgs8gxx_read_reg(priv, 0x0C, &t); | |
313 | lgs8gxx_read_reg(priv, 0x19, &t2); | |
314 | ||
315 | if (((t&0x03) == 0x01) && (t2&0x01)) { | |
316 | lgs8gxx_write_reg(priv, 0x6E, 0x05); | |
317 | lgs8gxx_write_reg(priv, 0x39, 0x02); | |
318 | lgs8gxx_write_reg(priv, 0x39, 0x03); | |
319 | lgs8gxx_write_reg(priv, 0x3D, 0x05); | |
320 | lgs8gxx_write_reg(priv, 0x3E, 0x28); | |
321 | lgs8gxx_write_reg(priv, 0x53, 0x80); | |
322 | } else { | |
323 | lgs8gxx_write_reg(priv, 0x6E, 0x3F); | |
324 | lgs8gxx_write_reg(priv, 0x39, 0x00); | |
325 | lgs8gxx_write_reg(priv, 0x3D, 0x04); | |
326 | } | |
327 | ||
328 | lgs8gxx_soft_reset(priv); | |
329 | return 0; | |
330 | } | |
331 | ||
f15da16d DW |
332 | /* turn off auto-detect; manual settings */ |
333 | lgs8gxx_write_reg(priv, 0x7E, 0); | |
334 | if (priv->config->prod == LGS8GXX_PROD_LGS8913) | |
335 | lgs8gxx_write_reg(priv, 0xC1, 0); | |
336 | ||
337 | ret = lgs8gxx_read_reg(priv, 0xC5, &t); | |
338 | t = (t & 0xE0) | 0x06; | |
339 | lgs8gxx_write_reg(priv, 0xC5, t); | |
340 | ||
341 | lgs8gxx_soft_reset(priv); | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
346 | static int lgs8gxx_is_locked(struct lgs8gxx_state *priv, u8 *locked) | |
347 | { | |
348 | int ret = 0; | |
349 | u8 t; | |
350 | ||
b80dc1c6 DW |
351 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) |
352 | ret = lgs8gxx_read_reg(priv, 0x13, &t); | |
353 | else | |
354 | ret = lgs8gxx_read_reg(priv, 0x4B, &t); | |
f15da16d DW |
355 | if (ret != 0) |
356 | return ret; | |
357 | ||
b80dc1c6 DW |
358 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) |
359 | *locked = ((t & 0x80) == 0x80) ? 1 : 0; | |
360 | else | |
361 | *locked = ((t & 0xC0) == 0xC0) ? 1 : 0; | |
362 | return 0; | |
363 | } | |
364 | ||
365 | /* Wait for Code Acquisition Lock */ | |
366 | static int lgs8gxx_wait_ca_lock(struct lgs8gxx_state *priv, u8 *locked) | |
367 | { | |
368 | int ret = 0; | |
369 | u8 reg, mask, val; | |
370 | ||
371 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) { | |
372 | reg = 0x13; | |
373 | mask = 0x80; | |
374 | val = 0x80; | |
375 | } else { | |
376 | reg = 0x4B; | |
377 | mask = 0xC0; | |
378 | val = 0xC0; | |
379 | } | |
380 | ||
381 | ret = wait_reg_mask(priv, reg, mask, val, 50, 40); | |
382 | *locked = (ret == 0) ? 1 : 0; | |
383 | ||
f15da16d DW |
384 | return 0; |
385 | } | |
386 | ||
387 | static int lgs8gxx_is_autodetect_finished(struct lgs8gxx_state *priv, | |
388 | u8 *finished) | |
389 | { | |
390 | int ret = 0; | |
b80dc1c6 | 391 | u8 reg, mask, val; |
f15da16d | 392 | |
b80dc1c6 DW |
393 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) { |
394 | reg = 0x1f; | |
395 | mask = 0xC0; | |
396 | val = 0x80; | |
397 | } else { | |
398 | reg = 0xA4; | |
399 | mask = 0x03; | |
400 | val = 0x01; | |
401 | } | |
f15da16d | 402 | |
b80dc1c6 DW |
403 | ret = wait_reg_mask(priv, reg, mask, val, 10, 20); |
404 | *finished = (ret == 0) ? 1 : 0; | |
f15da16d DW |
405 | |
406 | return 0; | |
407 | } | |
408 | ||
b80dc1c6 DW |
409 | static int lgs8gxx_autolock_gi(struct lgs8gxx_state *priv, u8 gi, u8 cpn, |
410 | u8 *locked) | |
f15da16d | 411 | { |
b80dc1c6 | 412 | int err = 0; |
f15da16d | 413 | u8 ad_fini = 0; |
b80dc1c6 | 414 | u8 t1, t2; |
f15da16d DW |
415 | |
416 | if (gi == GI_945) | |
417 | dprintk("try GI 945\n"); | |
418 | else if (gi == GI_595) | |
419 | dprintk("try GI 595\n"); | |
420 | else if (gi == GI_420) | |
421 | dprintk("try GI 420\n"); | |
b80dc1c6 DW |
422 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) { |
423 | lgs8gxx_read_reg(priv, 0x0C, &t1); | |
424 | lgs8gxx_read_reg(priv, 0x18, &t2); | |
425 | t1 &= ~(GI_MASK); | |
426 | t1 |= gi; | |
427 | t2 &= 0xFE; | |
428 | t2 |= cpn ? 0x01 : 0x00; | |
429 | lgs8gxx_write_reg(priv, 0x0C, t1); | |
430 | lgs8gxx_write_reg(priv, 0x18, t2); | |
431 | } else { | |
432 | lgs8gxx_write_reg(priv, 0x04, gi); | |
433 | } | |
f15da16d | 434 | lgs8gxx_soft_reset(priv); |
b80dc1c6 DW |
435 | err = lgs8gxx_wait_ca_lock(priv, locked); |
436 | if (err || !(*locked)) | |
437 | return err; | |
f15da16d DW |
438 | err = lgs8gxx_is_autodetect_finished(priv, &ad_fini); |
439 | if (err != 0) | |
440 | return err; | |
441 | if (ad_fini) { | |
b80dc1c6 DW |
442 | dprintk("auto detect finished\n"); |
443 | } else | |
444 | *locked = 0; | |
f15da16d DW |
445 | |
446 | return 0; | |
447 | } | |
448 | ||
449 | static int lgs8gxx_auto_detect(struct lgs8gxx_state *priv, | |
450 | u8 *detected_param, u8 *gi) | |
451 | { | |
452 | int i, j; | |
453 | int err = 0; | |
454 | u8 locked = 0, tmp_gi; | |
455 | ||
456 | dprintk("%s\n", __func__); | |
457 | ||
458 | lgs8gxx_set_mode_auto(priv); | |
b80dc1c6 DW |
459 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) { |
460 | lgs8gxx_write_reg(priv, 0x67, 0xAA); | |
461 | lgs8gxx_write_reg(priv, 0x6E, 0x3F); | |
462 | } else { | |
463 | /* Guard Interval */ | |
464 | lgs8gxx_write_reg(priv, 0x03, 00); | |
465 | } | |
f15da16d DW |
466 | |
467 | for (i = 0; i < 2; i++) { | |
468 | for (j = 0; j < 2; j++) { | |
469 | tmp_gi = GI_945; | |
b80dc1c6 | 470 | err = lgs8gxx_autolock_gi(priv, GI_945, j, &locked); |
f15da16d DW |
471 | if (err) |
472 | goto out; | |
473 | if (locked) | |
474 | goto locked; | |
475 | } | |
476 | for (j = 0; j < 2; j++) { | |
477 | tmp_gi = GI_420; | |
b80dc1c6 | 478 | err = lgs8gxx_autolock_gi(priv, GI_420, j, &locked); |
f15da16d DW |
479 | if (err) |
480 | goto out; | |
481 | if (locked) | |
482 | goto locked; | |
483 | } | |
484 | tmp_gi = GI_595; | |
b80dc1c6 | 485 | err = lgs8gxx_autolock_gi(priv, GI_595, 1, &locked); |
f15da16d DW |
486 | if (err) |
487 | goto out; | |
488 | if (locked) | |
489 | goto locked; | |
490 | } | |
491 | ||
492 | locked: | |
493 | if ((err == 0) && (locked == 1)) { | |
494 | u8 t; | |
495 | ||
b80dc1c6 DW |
496 | if (priv->config->prod != LGS8GXX_PROD_LGS8G75) { |
497 | lgs8gxx_read_reg(priv, 0xA2, &t); | |
498 | *detected_param = t; | |
499 | } else { | |
500 | lgs8gxx_read_reg(priv, 0x1F, &t); | |
501 | *detected_param = t & 0x3F; | |
502 | } | |
f15da16d DW |
503 | |
504 | if (tmp_gi == GI_945) | |
505 | dprintk("GI 945 locked\n"); | |
506 | else if (tmp_gi == GI_595) | |
507 | dprintk("GI 595 locked\n"); | |
508 | else if (tmp_gi == GI_420) | |
509 | dprintk("GI 420 locked\n"); | |
510 | *gi = tmp_gi; | |
511 | } | |
512 | if (!locked) | |
513 | err = -1; | |
514 | ||
515 | out: | |
516 | return err; | |
517 | } | |
518 | ||
519 | static void lgs8gxx_auto_lock(struct lgs8gxx_state *priv) | |
520 | { | |
521 | s8 err; | |
522 | u8 gi = 0x2; | |
523 | u8 detected_param = 0; | |
524 | ||
525 | err = lgs8gxx_auto_detect(priv, &detected_param, &gi); | |
526 | ||
527 | if (err != 0) { | |
528 | dprintk("lgs8gxx_auto_detect failed\n"); | |
b80dc1c6 DW |
529 | } else |
530 | dprintk("detected param = 0x%02X\n", detected_param); | |
f15da16d DW |
531 | |
532 | /* Apply detected parameters */ | |
533 | if (priv->config->prod == LGS8GXX_PROD_LGS8913) { | |
534 | u8 inter_leave_len = detected_param & TIM_MASK ; | |
b80dc1c6 DW |
535 | /* Fix 8913 time interleaver detection bug */ |
536 | inter_leave_len = (inter_leave_len == TIM_MIDDLE) ? 0x60 : 0x40; | |
f15da16d DW |
537 | detected_param &= CF_MASK | SC_MASK | LGS_FEC_MASK; |
538 | detected_param |= inter_leave_len; | |
539 | } | |
b80dc1c6 DW |
540 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) { |
541 | u8 t; | |
542 | lgs8gxx_read_reg(priv, 0x19, &t); | |
543 | t &= 0x81; | |
544 | t |= detected_param << 1; | |
545 | lgs8gxx_write_reg(priv, 0x19, t); | |
546 | } else { | |
547 | lgs8gxx_write_reg(priv, 0x7D, detected_param); | |
548 | if (priv->config->prod == LGS8GXX_PROD_LGS8913) | |
549 | lgs8gxx_write_reg(priv, 0xC0, detected_param); | |
550 | } | |
f15da16d DW |
551 | /* lgs8gxx_soft_reset(priv); */ |
552 | ||
553 | /* Enter manual mode */ | |
554 | lgs8gxx_set_mode_manual(priv); | |
555 | ||
556 | switch (gi) { | |
557 | case GI_945: | |
558 | priv->curr_gi = 945; break; | |
559 | case GI_595: | |
560 | priv->curr_gi = 595; break; | |
561 | case GI_420: | |
562 | priv->curr_gi = 420; break; | |
563 | default: | |
564 | priv->curr_gi = 945; break; | |
565 | } | |
566 | } | |
567 | ||
568 | static int lgs8gxx_set_mpeg_mode(struct lgs8gxx_state *priv, | |
569 | u8 serial, u8 clk_pol, u8 clk_gated) | |
570 | { | |
571 | int ret = 0; | |
b80dc1c6 | 572 | u8 t, reg_addr; |
f15da16d | 573 | |
b80dc1c6 DW |
574 | reg_addr = (priv->config->prod == LGS8GXX_PROD_LGS8G75) ? 0x30 : 0xC2; |
575 | ret = lgs8gxx_read_reg(priv, reg_addr, &t); | |
f15da16d DW |
576 | if (ret != 0) |
577 | return ret; | |
578 | ||
579 | t &= 0xF8; | |
580 | t |= serial ? TS_SERIAL : TS_PARALLEL; | |
581 | t |= clk_pol ? TS_CLK_INVERTED : TS_CLK_NORMAL; | |
582 | t |= clk_gated ? TS_CLK_GATED : TS_CLK_FREERUN; | |
583 | ||
b80dc1c6 | 584 | ret = lgs8gxx_write_reg(priv, reg_addr, t); |
f15da16d DW |
585 | if (ret != 0) |
586 | return ret; | |
587 | ||
588 | return 0; | |
589 | } | |
590 | ||
b80dc1c6 DW |
591 | /* A/D input peak-to-peak voltage range */ |
592 | static int lgs8g75_set_adc_vpp(struct lgs8gxx_state *priv, | |
593 | u8 sel) | |
594 | { | |
595 | u8 r26 = 0x73, r27 = 0x90; | |
596 | ||
597 | if (priv->config->prod != LGS8GXX_PROD_LGS8G75) | |
598 | return 0; | |
599 | ||
600 | r26 |= (sel & 0x01) << 7; | |
601 | r27 |= (sel & 0x02) >> 1; | |
602 | lgs8gxx_write_reg(priv, 0x26, r26); | |
603 | lgs8gxx_write_reg(priv, 0x27, r27); | |
604 | ||
605 | return 0; | |
606 | } | |
f15da16d DW |
607 | |
608 | /* LGS8913 demod frontend functions */ | |
609 | ||
610 | static int lgs8913_init(struct lgs8gxx_state *priv) | |
611 | { | |
612 | u8 t; | |
613 | ||
614 | /* LGS8913 specific */ | |
615 | lgs8gxx_write_reg(priv, 0xc1, 0x3); | |
616 | ||
617 | lgs8gxx_read_reg(priv, 0x7c, &t); | |
618 | lgs8gxx_write_reg(priv, 0x7c, (t&0x8c) | 0x3); | |
619 | ||
620 | /* LGS8913 specific */ | |
621 | lgs8gxx_read_reg(priv, 0xc3, &t); | |
622 | lgs8gxx_write_reg(priv, 0xc3, t&0x10); | |
623 | ||
624 | ||
625 | return 0; | |
626 | } | |
627 | ||
b80dc1c6 DW |
628 | static int lgs8g75_init_data(struct lgs8gxx_state *priv) |
629 | { | |
630 | const u8 *p = lgs8g75_initdat; | |
631 | int i; | |
632 | ||
633 | lgs8gxx_write_reg(priv, 0xC6, 0x40); | |
634 | ||
635 | lgs8gxx_write_reg(priv, 0x3D, 0x04); | |
636 | lgs8gxx_write_reg(priv, 0x39, 0x00); | |
637 | ||
638 | lgs8gxx_write_reg(priv, 0x3A, 0x00); | |
639 | lgs8gxx_write_reg(priv, 0x38, 0x00); | |
640 | lgs8gxx_write_reg(priv, 0x3B, 0x00); | |
641 | lgs8gxx_write_reg(priv, 0x38, 0x00); | |
642 | ||
643 | for (i = 0; i < sizeof(lgs8g75_initdat); i++) { | |
644 | lgs8gxx_write_reg(priv, 0x38, 0x00); | |
645 | lgs8gxx_write_reg(priv, 0x3A, (u8)(i&0xff)); | |
646 | lgs8gxx_write_reg(priv, 0x3B, (u8)(i>>8)); | |
647 | lgs8gxx_write_reg(priv, 0x3C, *p); | |
648 | p++; | |
649 | } | |
650 | ||
651 | lgs8gxx_write_reg(priv, 0x38, 0x00); | |
652 | ||
653 | return 0; | |
654 | } | |
655 | ||
f15da16d DW |
656 | static int lgs8gxx_init(struct dvb_frontend *fe) |
657 | { | |
658 | struct lgs8gxx_state *priv = | |
659 | (struct lgs8gxx_state *)fe->demodulator_priv; | |
660 | const struct lgs8gxx_config *config = priv->config; | |
661 | u8 data = 0; | |
662 | s8 err; | |
663 | dprintk("%s\n", __func__); | |
664 | ||
665 | lgs8gxx_read_reg(priv, 0, &data); | |
666 | dprintk("reg 0 = 0x%02X\n", data); | |
667 | ||
b80dc1c6 DW |
668 | if (config->prod == LGS8GXX_PROD_LGS8G75) |
669 | lgs8g75_set_adc_vpp(priv, config->adc_vpp); | |
670 | ||
f15da16d DW |
671 | /* Setup MPEG output format */ |
672 | err = lgs8gxx_set_mpeg_mode(priv, config->serial_ts, | |
673 | config->ts_clk_pol, | |
674 | config->ts_clk_gated); | |
675 | if (err != 0) | |
676 | return -EIO; | |
677 | ||
678 | if (config->prod == LGS8GXX_PROD_LGS8913) | |
679 | lgs8913_init(priv); | |
680 | lgs8gxx_set_if_freq(priv, priv->config->if_freq); | |
b80dc1c6 | 681 | lgs8gxx_set_ad_mode(priv); |
f15da16d DW |
682 | |
683 | return 0; | |
684 | } | |
685 | ||
686 | static void lgs8gxx_release(struct dvb_frontend *fe) | |
687 | { | |
688 | struct lgs8gxx_state *state = fe->demodulator_priv; | |
689 | dprintk("%s\n", __func__); | |
690 | ||
691 | kfree(state); | |
692 | } | |
693 | ||
694 | ||
695 | static int lgs8gxx_write(struct dvb_frontend *fe, u8 *buf, int len) | |
696 | { | |
697 | struct lgs8gxx_state *priv = fe->demodulator_priv; | |
698 | ||
699 | if (len != 2) | |
700 | return -EINVAL; | |
701 | ||
702 | return lgs8gxx_write_reg(priv, buf[0], buf[1]); | |
703 | } | |
704 | ||
705 | static int lgs8gxx_set_fe(struct dvb_frontend *fe, | |
706 | struct dvb_frontend_parameters *fe_params) | |
707 | { | |
708 | struct lgs8gxx_state *priv = fe->demodulator_priv; | |
709 | ||
710 | dprintk("%s\n", __func__); | |
711 | ||
712 | /* set frequency */ | |
713 | if (fe->ops.tuner_ops.set_params) { | |
714 | fe->ops.tuner_ops.set_params(fe, fe_params); | |
715 | if (fe->ops.i2c_gate_ctrl) | |
716 | fe->ops.i2c_gate_ctrl(fe, 0); | |
717 | } | |
718 | ||
719 | /* start auto lock */ | |
720 | lgs8gxx_auto_lock(priv); | |
721 | ||
722 | msleep(10); | |
723 | ||
724 | return 0; | |
725 | } | |
726 | ||
727 | static int lgs8gxx_get_fe(struct dvb_frontend *fe, | |
728 | struct dvb_frontend_parameters *fe_params) | |
729 | { | |
f15da16d DW |
730 | dprintk("%s\n", __func__); |
731 | ||
732 | /* TODO: get real readings from device */ | |
733 | /* inversion status */ | |
734 | fe_params->inversion = INVERSION_OFF; | |
735 | ||
736 | /* bandwidth */ | |
737 | fe_params->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; | |
738 | ||
f15da16d DW |
739 | fe_params->u.ofdm.code_rate_HP = FEC_AUTO; |
740 | fe_params->u.ofdm.code_rate_LP = FEC_AUTO; | |
741 | ||
b80dc1c6 | 742 | fe_params->u.ofdm.constellation = QAM_AUTO; |
f15da16d DW |
743 | |
744 | /* transmission mode */ | |
745 | fe_params->u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO; | |
746 | ||
747 | /* guard interval */ | |
748 | fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_AUTO; | |
749 | ||
750 | /* hierarchy */ | |
751 | fe_params->u.ofdm.hierarchy_information = HIERARCHY_NONE; | |
752 | ||
753 | return 0; | |
754 | } | |
755 | ||
756 | static | |
757 | int lgs8gxx_get_tune_settings(struct dvb_frontend *fe, | |
758 | struct dvb_frontend_tune_settings *fesettings) | |
759 | { | |
760 | /* FIXME: copy from tda1004x.c */ | |
761 | fesettings->min_delay_ms = 800; | |
762 | fesettings->step_size = 0; | |
763 | fesettings->max_drift = 0; | |
764 | return 0; | |
765 | } | |
766 | ||
767 | static int lgs8gxx_read_status(struct dvb_frontend *fe, fe_status_t *fe_status) | |
768 | { | |
769 | struct lgs8gxx_state *priv = fe->demodulator_priv; | |
770 | s8 ret; | |
b80dc1c6 | 771 | u8 t, locked = 0; |
f15da16d DW |
772 | |
773 | dprintk("%s\n", __func__); | |
b80dc1c6 DW |
774 | *fe_status = 0; |
775 | ||
776 | lgs8gxx_get_afc_phase(priv); | |
777 | lgs8gxx_is_locked(priv, &locked); | |
778 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) { | |
779 | if (locked) | |
780 | *fe_status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | | |
781 | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; | |
782 | return 0; | |
783 | } | |
f15da16d DW |
784 | |
785 | ret = lgs8gxx_read_reg(priv, 0x4B, &t); | |
786 | if (ret != 0) | |
787 | return -EIO; | |
788 | ||
789 | dprintk("Reg 0x4B: 0x%02X\n", t); | |
790 | ||
791 | *fe_status = 0; | |
792 | if (priv->config->prod == LGS8GXX_PROD_LGS8913) { | |
793 | if ((t & 0x40) == 0x40) | |
794 | *fe_status |= FE_HAS_SIGNAL | FE_HAS_CARRIER; | |
795 | if ((t & 0x80) == 0x80) | |
796 | *fe_status |= FE_HAS_VITERBI | FE_HAS_SYNC | | |
797 | FE_HAS_LOCK; | |
798 | } else { | |
799 | if ((t & 0x80) == 0x80) | |
800 | *fe_status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | | |
801 | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; | |
802 | } | |
803 | ||
804 | /* success */ | |
805 | dprintk("%s: fe_status=0x%x\n", __func__, *fe_status); | |
806 | return 0; | |
807 | } | |
808 | ||
809 | static int lgs8gxx_read_signal_agc(struct lgs8gxx_state *priv, u16 *signal) | |
810 | { | |
811 | u16 v; | |
812 | u8 agc_lvl[2], cat; | |
813 | ||
814 | dprintk("%s()\n", __func__); | |
815 | lgs8gxx_read_reg(priv, 0x3F, &agc_lvl[0]); | |
816 | lgs8gxx_read_reg(priv, 0x3E, &agc_lvl[1]); | |
817 | ||
818 | v = agc_lvl[0]; | |
819 | v <<= 8; | |
820 | v |= agc_lvl[1]; | |
821 | ||
822 | dprintk("agc_lvl: 0x%04X\n", v); | |
823 | ||
824 | if (v < 0x100) | |
825 | cat = 0; | |
826 | else if (v < 0x190) | |
827 | cat = 5; | |
828 | else if (v < 0x2A8) | |
829 | cat = 4; | |
830 | else if (v < 0x381) | |
831 | cat = 3; | |
832 | else if (v < 0x400) | |
833 | cat = 2; | |
834 | else if (v == 0x400) | |
835 | cat = 1; | |
836 | else | |
837 | cat = 0; | |
838 | ||
6762d953 | 839 | *signal = cat * 65535 / 5; |
f15da16d DW |
840 | |
841 | return 0; | |
842 | } | |
843 | ||
844 | static int lgs8913_read_signal_strength(struct lgs8gxx_state *priv, u16 *signal) | |
845 | { | |
846 | u8 t; s8 ret; | |
847 | s16 max_strength = 0; | |
848 | u8 str; | |
849 | u16 i, gi = priv->curr_gi; | |
850 | ||
851 | dprintk("%s\n", __func__); | |
852 | ||
853 | ret = lgs8gxx_read_reg(priv, 0x4B, &t); | |
854 | if (ret != 0) | |
855 | return -EIO; | |
856 | ||
857 | if (fake_signal_str) { | |
858 | if ((t & 0xC0) == 0xC0) { | |
6762d953 DW |
859 | dprintk("Fake signal strength\n"); |
860 | *signal = 0x7FFF; | |
f15da16d DW |
861 | } else |
862 | *signal = 0; | |
863 | return 0; | |
864 | } | |
865 | ||
866 | dprintk("gi = %d\n", gi); | |
867 | for (i = 0; i < gi; i++) { | |
868 | ||
869 | if ((i & 0xFF) == 0) | |
870 | lgs8gxx_write_reg(priv, 0x84, 0x03 & (i >> 8)); | |
871 | lgs8gxx_write_reg(priv, 0x83, i & 0xFF); | |
872 | ||
873 | lgs8gxx_read_reg(priv, 0x94, &str); | |
874 | if (max_strength < str) | |
875 | max_strength = str; | |
876 | } | |
877 | ||
878 | *signal = max_strength; | |
879 | dprintk("%s: signal=0x%02X\n", __func__, *signal); | |
880 | ||
881 | lgs8gxx_read_reg(priv, 0x95, &t); | |
882 | dprintk("%s: AVG Noise=0x%02X\n", __func__, t); | |
883 | ||
884 | return 0; | |
885 | } | |
886 | ||
b80dc1c6 DW |
887 | static int lgs8g75_read_signal_strength(struct lgs8gxx_state *priv, u16 *signal) |
888 | { | |
889 | u8 t; | |
890 | s16 v = 0; | |
891 | ||
892 | dprintk("%s\n", __func__); | |
893 | ||
894 | lgs8gxx_read_reg(priv, 0xB1, &t); | |
895 | v |= t; | |
896 | v <<= 8; | |
897 | lgs8gxx_read_reg(priv, 0xB0, &t); | |
898 | v |= t; | |
899 | ||
900 | *signal = v; | |
901 | dprintk("%s: signal=0x%02X\n", __func__, *signal); | |
902 | ||
903 | return 0; | |
904 | } | |
905 | ||
f15da16d DW |
906 | static int lgs8gxx_read_signal_strength(struct dvb_frontend *fe, u16 *signal) |
907 | { | |
908 | struct lgs8gxx_state *priv = fe->demodulator_priv; | |
909 | ||
910 | if (priv->config->prod == LGS8GXX_PROD_LGS8913) | |
911 | return lgs8913_read_signal_strength(priv, signal); | |
b80dc1c6 DW |
912 | else if (priv->config->prod == LGS8GXX_PROD_LGS8G75) |
913 | return lgs8g75_read_signal_strength(priv, signal); | |
f15da16d DW |
914 | else |
915 | return lgs8gxx_read_signal_agc(priv, signal); | |
916 | } | |
917 | ||
918 | static int lgs8gxx_read_snr(struct dvb_frontend *fe, u16 *snr) | |
919 | { | |
920 | struct lgs8gxx_state *priv = fe->demodulator_priv; | |
921 | u8 t; | |
922 | *snr = 0; | |
923 | ||
b80dc1c6 DW |
924 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) |
925 | lgs8gxx_read_reg(priv, 0x34, &t); | |
926 | else | |
927 | lgs8gxx_read_reg(priv, 0x95, &t); | |
f15da16d DW |
928 | dprintk("AVG Noise=0x%02X\n", t); |
929 | *snr = 256 - t; | |
930 | *snr <<= 8; | |
931 | dprintk("snr=0x%x\n", *snr); | |
932 | ||
933 | return 0; | |
934 | } | |
935 | ||
936 | static int lgs8gxx_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) | |
937 | { | |
938 | *ucblocks = 0; | |
939 | dprintk("%s: ucblocks=0x%x\n", __func__, *ucblocks); | |
940 | return 0; | |
941 | } | |
942 | ||
b80dc1c6 DW |
943 | static void packet_counter_start(struct lgs8gxx_state *priv) |
944 | { | |
945 | u8 orig, t; | |
946 | ||
947 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) { | |
948 | lgs8gxx_read_reg(priv, 0x30, &orig); | |
949 | orig &= 0xE7; | |
950 | t = orig | 0x10; | |
951 | lgs8gxx_write_reg(priv, 0x30, t); | |
952 | t = orig | 0x18; | |
953 | lgs8gxx_write_reg(priv, 0x30, t); | |
954 | t = orig | 0x10; | |
955 | lgs8gxx_write_reg(priv, 0x30, t); | |
956 | } else { | |
957 | lgs8gxx_write_reg(priv, 0xC6, 0x01); | |
958 | lgs8gxx_write_reg(priv, 0xC6, 0x41); | |
959 | lgs8gxx_write_reg(priv, 0xC6, 0x01); | |
960 | } | |
961 | } | |
962 | ||
963 | static void packet_counter_stop(struct lgs8gxx_state *priv) | |
964 | { | |
965 | u8 t; | |
966 | ||
967 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) { | |
968 | lgs8gxx_read_reg(priv, 0x30, &t); | |
969 | t &= 0xE7; | |
970 | lgs8gxx_write_reg(priv, 0x30, t); | |
971 | } else { | |
972 | lgs8gxx_write_reg(priv, 0xC6, 0x81); | |
973 | } | |
974 | } | |
975 | ||
f15da16d DW |
976 | static int lgs8gxx_read_ber(struct dvb_frontend *fe, u32 *ber) |
977 | { | |
978 | struct lgs8gxx_state *priv = fe->demodulator_priv; | |
b80dc1c6 DW |
979 | u8 reg_err, reg_total, t; |
980 | u32 total_cnt = 0, err_cnt = 0; | |
981 | int i; | |
f15da16d DW |
982 | |
983 | dprintk("%s\n", __func__); | |
984 | ||
b80dc1c6 | 985 | packet_counter_start(priv); |
f15da16d | 986 | msleep(200); |
b80dc1c6 DW |
987 | packet_counter_stop(priv); |
988 | ||
989 | if (priv->config->prod == LGS8GXX_PROD_LGS8G75) { | |
990 | reg_total = 0x28; reg_err = 0x2C; | |
991 | } else { | |
992 | reg_total = 0xD0; reg_err = 0xD4; | |
993 | } | |
f15da16d | 994 | |
b80dc1c6 DW |
995 | for (i = 0; i < 4; i++) { |
996 | total_cnt <<= 8; | |
997 | lgs8gxx_read_reg(priv, reg_total+3-i, &t); | |
998 | total_cnt |= t; | |
999 | } | |
1000 | for (i = 0; i < 4; i++) { | |
1001 | err_cnt <<= 8; | |
1002 | lgs8gxx_read_reg(priv, reg_err+3-i, &t); | |
1003 | err_cnt |= t; | |
1004 | } | |
f15da16d DW |
1005 | dprintk("error=%d total=%d\n", err_cnt, total_cnt); |
1006 | ||
1007 | if (total_cnt == 0) | |
1008 | *ber = 0; | |
1009 | else | |
1010 | *ber = err_cnt * 100 / total_cnt; | |
1011 | ||
1012 | dprintk("%s: ber=0x%x\n", __func__, *ber); | |
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | static int lgs8gxx_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) | |
1017 | { | |
1018 | struct lgs8gxx_state *priv = fe->demodulator_priv; | |
1019 | ||
1020 | if (priv->config->tuner_address == 0) | |
1021 | return 0; | |
1022 | if (enable) { | |
1023 | u8 v = 0x80 | priv->config->tuner_address; | |
1024 | return lgs8gxx_write_reg(priv, 0x01, v); | |
1025 | } | |
1026 | return lgs8gxx_write_reg(priv, 0x01, 0); | |
1027 | } | |
1028 | ||
1029 | static struct dvb_frontend_ops lgs8gxx_ops = { | |
1030 | .info = { | |
1031 | .name = "Legend Silicon LGS8913/LGS8GXX DMB-TH", | |
1032 | .type = FE_OFDM, | |
1033 | .frequency_min = 474000000, | |
1034 | .frequency_max = 858000000, | |
1035 | .frequency_stepsize = 10000, | |
1036 | .caps = | |
1037 | FE_CAN_FEC_AUTO | | |
1038 | FE_CAN_QAM_AUTO | | |
1039 | FE_CAN_TRANSMISSION_MODE_AUTO | | |
1040 | FE_CAN_GUARD_INTERVAL_AUTO | |
1041 | }, | |
1042 | ||
1043 | .release = lgs8gxx_release, | |
1044 | ||
1045 | .init = lgs8gxx_init, | |
1046 | .write = lgs8gxx_write, | |
1047 | .i2c_gate_ctrl = lgs8gxx_i2c_gate_ctrl, | |
1048 | ||
1049 | .set_frontend = lgs8gxx_set_fe, | |
1050 | .get_frontend = lgs8gxx_get_fe, | |
1051 | .get_tune_settings = lgs8gxx_get_tune_settings, | |
1052 | ||
1053 | .read_status = lgs8gxx_read_status, | |
1054 | .read_ber = lgs8gxx_read_ber, | |
1055 | .read_signal_strength = lgs8gxx_read_signal_strength, | |
1056 | .read_snr = lgs8gxx_read_snr, | |
1057 | .read_ucblocks = lgs8gxx_read_ucblocks, | |
1058 | }; | |
1059 | ||
1060 | struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config, | |
1061 | struct i2c_adapter *i2c) | |
1062 | { | |
1063 | struct lgs8gxx_state *priv = NULL; | |
1064 | u8 data = 0; | |
1065 | ||
1066 | dprintk("%s()\n", __func__); | |
1067 | ||
1068 | if (config == NULL || i2c == NULL) | |
1069 | return NULL; | |
1070 | ||
1071 | priv = kzalloc(sizeof(struct lgs8gxx_state), GFP_KERNEL); | |
1072 | if (priv == NULL) | |
1073 | goto error_out; | |
1074 | ||
1075 | priv->config = config; | |
1076 | priv->i2c = i2c; | |
1077 | ||
1078 | /* check if the demod is there */ | |
1079 | if (lgs8gxx_read_reg(priv, 0, &data) != 0) { | |
1080 | dprintk("%s lgs8gxx not found at i2c addr 0x%02X\n", | |
1081 | __func__, priv->config->demod_address); | |
1082 | goto error_out; | |
1083 | } | |
1084 | ||
1085 | lgs8gxx_read_reg(priv, 1, &data); | |
1086 | ||
1087 | memcpy(&priv->frontend.ops, &lgs8gxx_ops, | |
1088 | sizeof(struct dvb_frontend_ops)); | |
1089 | priv->frontend.demodulator_priv = priv; | |
1090 | ||
b80dc1c6 DW |
1091 | if (config->prod == LGS8GXX_PROD_LGS8G75) |
1092 | lgs8g75_init_data(priv); | |
1093 | ||
f15da16d DW |
1094 | return &priv->frontend; |
1095 | ||
1096 | error_out: | |
1097 | dprintk("%s() error_out\n", __func__); | |
1098 | kfree(priv); | |
1099 | return NULL; | |
1100 | ||
1101 | } | |
1102 | EXPORT_SYMBOL(lgs8gxx_attach); | |
1103 | ||
1104 | MODULE_DESCRIPTION("Legend Silicon LGS8913/LGS8GXX DMB-TH demodulator driver"); | |
1105 | MODULE_AUTHOR("David T. L. Wong <davidtlwong@gmail.com>"); | |
1106 | MODULE_LICENSE("GPL"); |