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2a83e4d5 MK |
1 | /* |
2 | * mxl5007t.c - driver for the MaxLinear MxL5007T silicon tuner | |
3 | * | |
7434ca43 | 4 | * Copyright (C) 2008, 2009 Michael Krufky <mkrufky@linuxtv.org> |
2a83e4d5 MK |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | */ | |
20 | ||
21 | #include <linux/i2c.h> | |
22 | #include <linux/types.h> | |
23 | #include <linux/videodev2.h> | |
24 | #include "tuner-i2c.h" | |
25 | #include "mxl5007t.h" | |
26 | ||
27 | static DEFINE_MUTEX(mxl5007t_list_mutex); | |
28 | static LIST_HEAD(hybrid_tuner_instance_list); | |
29 | ||
30 | static int mxl5007t_debug; | |
31 | module_param_named(debug, mxl5007t_debug, int, 0644); | |
32 | MODULE_PARM_DESC(debug, "set debug level"); | |
33 | ||
34 | /* ------------------------------------------------------------------------- */ | |
35 | ||
36 | #define mxl_printk(kern, fmt, arg...) \ | |
37 | printk(kern "%s: " fmt "\n", __func__, ##arg) | |
38 | ||
39 | #define mxl_err(fmt, arg...) \ | |
40 | mxl_printk(KERN_ERR, "%d: " fmt, __LINE__, ##arg) | |
41 | ||
42 | #define mxl_warn(fmt, arg...) \ | |
43 | mxl_printk(KERN_WARNING, fmt, ##arg) | |
44 | ||
45 | #define mxl_info(fmt, arg...) \ | |
46 | mxl_printk(KERN_INFO, fmt, ##arg) | |
47 | ||
48 | #define mxl_debug(fmt, arg...) \ | |
49 | ({ \ | |
50 | if (mxl5007t_debug) \ | |
51 | mxl_printk(KERN_DEBUG, fmt, ##arg); \ | |
52 | }) | |
53 | ||
54 | #define mxl_fail(ret) \ | |
55 | ({ \ | |
56 | int __ret; \ | |
57 | __ret = (ret < 0); \ | |
58 | if (__ret) \ | |
59 | mxl_printk(KERN_ERR, "error %d on line %d", \ | |
60 | ret, __LINE__); \ | |
61 | __ret; \ | |
62 | }) | |
63 | ||
64 | /* ------------------------------------------------------------------------- */ | |
65 | ||
66 | #define MHz 1000000 | |
67 | ||
68 | enum mxl5007t_mode { | |
7434ca43 MK |
69 | MxL_MODE_ISDBT = 0, |
70 | MxL_MODE_DVBT = 1, | |
71 | MxL_MODE_ATSC = 2, | |
72 | MxL_MODE_CABLE = 0x10, | |
2a83e4d5 MK |
73 | }; |
74 | ||
75 | enum mxl5007t_chip_version { | |
76 | MxL_UNKNOWN_ID = 0x00, | |
77 | MxL_5007_V1_F1 = 0x11, | |
78 | MxL_5007_V1_F2 = 0x12, | |
7434ca43 | 79 | MxL_5007_V4 = 0x14, |
2a83e4d5 MK |
80 | MxL_5007_V2_100_F1 = 0x21, |
81 | MxL_5007_V2_100_F2 = 0x22, | |
82 | MxL_5007_V2_200_F1 = 0x23, | |
83 | MxL_5007_V2_200_F2 = 0x24, | |
84 | }; | |
85 | ||
86 | struct reg_pair_t { | |
87 | u8 reg; | |
88 | u8 val; | |
89 | }; | |
90 | ||
91 | /* ------------------------------------------------------------------------- */ | |
92 | ||
93 | static struct reg_pair_t init_tab[] = { | |
7434ca43 MK |
94 | { 0x02, 0x06 }, |
95 | { 0x03, 0x48 }, | |
96 | { 0x05, 0x04 }, | |
97 | { 0x06, 0x10 }, | |
98 | { 0x2e, 0x15 }, /* OVERRIDE */ | |
99 | { 0x30, 0x10 }, /* OVERRIDE */ | |
100 | { 0x45, 0x58 }, /* OVERRIDE */ | |
101 | { 0x48, 0x19 }, /* OVERRIDE */ | |
102 | { 0x52, 0x03 }, /* OVERRIDE */ | |
103 | { 0x53, 0x44 }, /* OVERRIDE */ | |
104 | { 0x6a, 0x4b }, /* OVERRIDE */ | |
105 | { 0x76, 0x00 }, /* OVERRIDE */ | |
106 | { 0x78, 0x18 }, /* OVERRIDE */ | |
107 | { 0x7a, 0x17 }, /* OVERRIDE */ | |
108 | { 0x85, 0x06 }, /* OVERRIDE */ | |
109 | { 0x01, 0x01 }, /* TOP_MASTER_ENABLE */ | |
2a83e4d5 MK |
110 | { 0, 0 } |
111 | }; | |
112 | ||
113 | static struct reg_pair_t init_tab_cable[] = { | |
7434ca43 MK |
114 | { 0x02, 0x06 }, |
115 | { 0x03, 0x48 }, | |
116 | { 0x05, 0x04 }, | |
117 | { 0x06, 0x10 }, | |
118 | { 0x09, 0x3f }, | |
119 | { 0x0a, 0x3f }, | |
120 | { 0x0b, 0x3f }, | |
121 | { 0x2e, 0x15 }, /* OVERRIDE */ | |
122 | { 0x30, 0x10 }, /* OVERRIDE */ | |
123 | { 0x45, 0x58 }, /* OVERRIDE */ | |
124 | { 0x48, 0x19 }, /* OVERRIDE */ | |
125 | { 0x52, 0x03 }, /* OVERRIDE */ | |
126 | { 0x53, 0x44 }, /* OVERRIDE */ | |
127 | { 0x6a, 0x4b }, /* OVERRIDE */ | |
128 | { 0x76, 0x00 }, /* OVERRIDE */ | |
129 | { 0x78, 0x18 }, /* OVERRIDE */ | |
130 | { 0x7a, 0x17 }, /* OVERRIDE */ | |
131 | { 0x85, 0x06 }, /* OVERRIDE */ | |
132 | { 0x01, 0x01 }, /* TOP_MASTER_ENABLE */ | |
2a83e4d5 MK |
133 | { 0, 0 } |
134 | }; | |
135 | ||
136 | /* ------------------------------------------------------------------------- */ | |
137 | ||
138 | static struct reg_pair_t reg_pair_rftune[] = { | |
7434ca43 MK |
139 | { 0x0f, 0x00 }, /* abort tune */ |
140 | { 0x0c, 0x15 }, | |
141 | { 0x0d, 0x40 }, | |
142 | { 0x0e, 0x0e }, | |
143 | { 0x1f, 0x87 }, /* OVERRIDE */ | |
144 | { 0x20, 0x1f }, /* OVERRIDE */ | |
145 | { 0x21, 0x87 }, /* OVERRIDE */ | |
146 | { 0x22, 0x1f }, /* OVERRIDE */ | |
147 | { 0x80, 0x01 }, /* freq dependent */ | |
148 | { 0x0f, 0x01 }, /* start tune */ | |
2a83e4d5 MK |
149 | { 0, 0 } |
150 | }; | |
151 | ||
152 | /* ------------------------------------------------------------------------- */ | |
153 | ||
154 | struct mxl5007t_state { | |
155 | struct list_head hybrid_tuner_instance_list; | |
156 | struct tuner_i2c_props i2c_props; | |
157 | ||
158 | struct mutex lock; | |
159 | ||
160 | struct mxl5007t_config *config; | |
161 | ||
162 | enum mxl5007t_chip_version chip_id; | |
163 | ||
164 | struct reg_pair_t tab_init[ARRAY_SIZE(init_tab)]; | |
165 | struct reg_pair_t tab_init_cable[ARRAY_SIZE(init_tab_cable)]; | |
166 | struct reg_pair_t tab_rftune[ARRAY_SIZE(reg_pair_rftune)]; | |
167 | ||
168 | u32 frequency; | |
169 | u32 bandwidth; | |
170 | }; | |
171 | ||
172 | /* ------------------------------------------------------------------------- */ | |
173 | ||
174 | /* called by _init and _rftun to manipulate the register arrays */ | |
175 | ||
176 | static void set_reg_bits(struct reg_pair_t *reg_pair, u8 reg, u8 mask, u8 val) | |
177 | { | |
178 | unsigned int i = 0; | |
179 | ||
180 | while (reg_pair[i].reg || reg_pair[i].val) { | |
181 | if (reg_pair[i].reg == reg) { | |
182 | reg_pair[i].val &= ~mask; | |
183 | reg_pair[i].val |= val; | |
184 | } | |
185 | i++; | |
186 | ||
187 | } | |
188 | return; | |
189 | } | |
190 | ||
191 | static void copy_reg_bits(struct reg_pair_t *reg_pair1, | |
192 | struct reg_pair_t *reg_pair2) | |
193 | { | |
194 | unsigned int i, j; | |
195 | ||
196 | i = j = 0; | |
197 | ||
198 | while (reg_pair1[i].reg || reg_pair1[i].val) { | |
c95a419a | 199 | while (reg_pair2[j].reg || reg_pair2[j].val) { |
2a83e4d5 MK |
200 | if (reg_pair1[i].reg != reg_pair2[j].reg) { |
201 | j++; | |
202 | continue; | |
203 | } | |
204 | reg_pair2[j].val = reg_pair1[i].val; | |
205 | break; | |
206 | } | |
207 | i++; | |
208 | } | |
209 | return; | |
210 | } | |
211 | ||
212 | /* ------------------------------------------------------------------------- */ | |
213 | ||
214 | static void mxl5007t_set_mode_bits(struct mxl5007t_state *state, | |
215 | enum mxl5007t_mode mode, | |
216 | s32 if_diff_out_level) | |
217 | { | |
218 | switch (mode) { | |
7434ca43 MK |
219 | case MxL_MODE_ATSC: |
220 | set_reg_bits(state->tab_init, 0x06, 0x1f, 0x12); | |
2a83e4d5 | 221 | break; |
7434ca43 MK |
222 | case MxL_MODE_DVBT: |
223 | set_reg_bits(state->tab_init, 0x06, 0x1f, 0x11); | |
2a83e4d5 | 224 | break; |
7434ca43 MK |
225 | case MxL_MODE_ISDBT: |
226 | set_reg_bits(state->tab_init, 0x06, 0x1f, 0x10); | |
227 | break; | |
228 | case MxL_MODE_CABLE: | |
229 | set_reg_bits(state->tab_init_cable, 0x09, 0xff, 0xc1); | |
230 | set_reg_bits(state->tab_init_cable, 0x0a, 0xff, | |
2a83e4d5 | 231 | 8 - if_diff_out_level); |
7434ca43 | 232 | set_reg_bits(state->tab_init_cable, 0x0b, 0xff, 0x17); |
2a83e4d5 | 233 | break; |
2a83e4d5 MK |
234 | default: |
235 | mxl_fail(-EINVAL); | |
236 | } | |
237 | return; | |
238 | } | |
239 | ||
240 | static void mxl5007t_set_if_freq_bits(struct mxl5007t_state *state, | |
241 | enum mxl5007t_if_freq if_freq, | |
242 | int invert_if) | |
243 | { | |
244 | u8 val; | |
245 | ||
246 | switch (if_freq) { | |
247 | case MxL_IF_4_MHZ: | |
248 | val = 0x00; | |
249 | break; | |
250 | case MxL_IF_4_5_MHZ: | |
7434ca43 | 251 | val = 0x02; |
2a83e4d5 MK |
252 | break; |
253 | case MxL_IF_4_57_MHZ: | |
7434ca43 | 254 | val = 0x03; |
2a83e4d5 MK |
255 | break; |
256 | case MxL_IF_5_MHZ: | |
7434ca43 | 257 | val = 0x04; |
2a83e4d5 MK |
258 | break; |
259 | case MxL_IF_5_38_MHZ: | |
7434ca43 | 260 | val = 0x05; |
2a83e4d5 MK |
261 | break; |
262 | case MxL_IF_6_MHZ: | |
7434ca43 | 263 | val = 0x06; |
2a83e4d5 MK |
264 | break; |
265 | case MxL_IF_6_28_MHZ: | |
7434ca43 | 266 | val = 0x07; |
2a83e4d5 MK |
267 | break; |
268 | case MxL_IF_9_1915_MHZ: | |
7434ca43 | 269 | val = 0x08; |
2a83e4d5 MK |
270 | break; |
271 | case MxL_IF_35_25_MHZ: | |
7434ca43 | 272 | val = 0x09; |
2a83e4d5 MK |
273 | break; |
274 | case MxL_IF_36_15_MHZ: | |
7434ca43 | 275 | val = 0x0a; |
2a83e4d5 MK |
276 | break; |
277 | case MxL_IF_44_MHZ: | |
7434ca43 | 278 | val = 0x0b; |
2a83e4d5 MK |
279 | break; |
280 | default: | |
281 | mxl_fail(-EINVAL); | |
282 | return; | |
283 | } | |
7434ca43 | 284 | set_reg_bits(state->tab_init, 0x02, 0x0f, val); |
2a83e4d5 MK |
285 | |
286 | /* set inverted IF or normal IF */ | |
7434ca43 | 287 | set_reg_bits(state->tab_init, 0x02, 0x10, invert_if ? 0x10 : 0x00); |
2a83e4d5 MK |
288 | |
289 | return; | |
290 | } | |
291 | ||
292 | static void mxl5007t_set_xtal_freq_bits(struct mxl5007t_state *state, | |
293 | enum mxl5007t_xtal_freq xtal_freq) | |
294 | { | |
2a83e4d5 MK |
295 | switch (xtal_freq) { |
296 | case MxL_XTAL_16_MHZ: | |
7434ca43 MK |
297 | /* select xtal freq & ref freq */ |
298 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x00); | |
299 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x00); | |
2a83e4d5 MK |
300 | break; |
301 | case MxL_XTAL_20_MHZ: | |
7434ca43 MK |
302 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x10); |
303 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x01); | |
2a83e4d5 MK |
304 | break; |
305 | case MxL_XTAL_20_25_MHZ: | |
7434ca43 MK |
306 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x20); |
307 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x02); | |
2a83e4d5 MK |
308 | break; |
309 | case MxL_XTAL_20_48_MHZ: | |
7434ca43 MK |
310 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x30); |
311 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x03); | |
2a83e4d5 MK |
312 | break; |
313 | case MxL_XTAL_24_MHZ: | |
7434ca43 MK |
314 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x40); |
315 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x04); | |
2a83e4d5 MK |
316 | break; |
317 | case MxL_XTAL_25_MHZ: | |
7434ca43 MK |
318 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x50); |
319 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x05); | |
2a83e4d5 MK |
320 | break; |
321 | case MxL_XTAL_25_14_MHZ: | |
7434ca43 MK |
322 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x60); |
323 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x06); | |
2a83e4d5 MK |
324 | break; |
325 | case MxL_XTAL_27_MHZ: | |
7434ca43 MK |
326 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x70); |
327 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x07); | |
2a83e4d5 MK |
328 | break; |
329 | case MxL_XTAL_28_8_MHZ: | |
7434ca43 MK |
330 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x80); |
331 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x08); | |
2a83e4d5 MK |
332 | break; |
333 | case MxL_XTAL_32_MHZ: | |
7434ca43 MK |
334 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x90); |
335 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x09); | |
2a83e4d5 MK |
336 | break; |
337 | case MxL_XTAL_40_MHZ: | |
7434ca43 MK |
338 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xa0); |
339 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0a); | |
2a83e4d5 MK |
340 | break; |
341 | case MxL_XTAL_44_MHZ: | |
7434ca43 MK |
342 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xb0); |
343 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0b); | |
2a83e4d5 MK |
344 | break; |
345 | case MxL_XTAL_48_MHZ: | |
7434ca43 MK |
346 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xc0); |
347 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0c); | |
2a83e4d5 MK |
348 | break; |
349 | case MxL_XTAL_49_3811_MHZ: | |
7434ca43 MK |
350 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xd0); |
351 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0d); | |
2a83e4d5 MK |
352 | break; |
353 | default: | |
354 | mxl_fail(-EINVAL); | |
355 | return; | |
356 | } | |
2a83e4d5 MK |
357 | |
358 | return; | |
359 | } | |
360 | ||
361 | static struct reg_pair_t *mxl5007t_calc_init_regs(struct mxl5007t_state *state, | |
362 | enum mxl5007t_mode mode) | |
363 | { | |
364 | struct mxl5007t_config *cfg = state->config; | |
365 | ||
366 | memcpy(&state->tab_init, &init_tab, sizeof(init_tab)); | |
367 | memcpy(&state->tab_init_cable, &init_tab_cable, sizeof(init_tab_cable)); | |
368 | ||
369 | mxl5007t_set_mode_bits(state, mode, cfg->if_diff_out_level); | |
370 | mxl5007t_set_if_freq_bits(state, cfg->if_freq_hz, cfg->invert_if); | |
371 | mxl5007t_set_xtal_freq_bits(state, cfg->xtal_freq_hz); | |
372 | ||
7434ca43 MK |
373 | set_reg_bits(state->tab_init, 0x04, 0x01, cfg->loop_thru_enable); |
374 | set_reg_bits(state->tab_init, 0x03, 0x08, cfg->clk_out_enable << 3); | |
375 | set_reg_bits(state->tab_init, 0x03, 0x07, cfg->clk_out_amp); | |
2a83e4d5 | 376 | |
7434ca43 | 377 | if (mode >= MxL_MODE_CABLE) { |
2a83e4d5 MK |
378 | copy_reg_bits(state->tab_init, state->tab_init_cable); |
379 | return state->tab_init_cable; | |
380 | } else | |
381 | return state->tab_init; | |
382 | } | |
383 | ||
384 | /* ------------------------------------------------------------------------- */ | |
385 | ||
386 | enum mxl5007t_bw_mhz { | |
387 | MxL_BW_6MHz = 6, | |
388 | MxL_BW_7MHz = 7, | |
389 | MxL_BW_8MHz = 8, | |
390 | }; | |
391 | ||
392 | static void mxl5007t_set_bw_bits(struct mxl5007t_state *state, | |
393 | enum mxl5007t_bw_mhz bw) | |
394 | { | |
395 | u8 val; | |
396 | ||
397 | switch (bw) { | |
398 | case MxL_BW_6MHz: | |
399 | val = 0x15; /* set DIG_MODEINDEX, DIG_MODEINDEX_A, | |
400 | * and DIG_MODEINDEX_CSF */ | |
401 | break; | |
402 | case MxL_BW_7MHz: | |
7434ca43 | 403 | val = 0x2a; |
2a83e4d5 MK |
404 | break; |
405 | case MxL_BW_8MHz: | |
406 | val = 0x3f; | |
407 | break; | |
408 | default: | |
409 | mxl_fail(-EINVAL); | |
410 | return; | |
411 | } | |
7434ca43 | 412 | set_reg_bits(state->tab_rftune, 0x0c, 0x3f, val); |
2a83e4d5 MK |
413 | |
414 | return; | |
415 | } | |
416 | ||
417 | static struct | |
418 | reg_pair_t *mxl5007t_calc_rf_tune_regs(struct mxl5007t_state *state, | |
419 | u32 rf_freq, enum mxl5007t_bw_mhz bw) | |
420 | { | |
421 | u32 dig_rf_freq = 0; | |
422 | u32 temp; | |
423 | u32 frac_divider = 1000000; | |
424 | unsigned int i; | |
425 | ||
426 | memcpy(&state->tab_rftune, ®_pair_rftune, sizeof(reg_pair_rftune)); | |
427 | ||
428 | mxl5007t_set_bw_bits(state, bw); | |
429 | ||
430 | /* Convert RF frequency into 16 bits => | |
431 | * 10 bit integer (MHz) + 6 bit fraction */ | |
432 | dig_rf_freq = rf_freq / MHz; | |
433 | ||
434 | temp = rf_freq % MHz; | |
435 | ||
436 | for (i = 0; i < 6; i++) { | |
437 | dig_rf_freq <<= 1; | |
438 | frac_divider /= 2; | |
439 | if (temp > frac_divider) { | |
440 | temp -= frac_divider; | |
441 | dig_rf_freq++; | |
442 | } | |
443 | } | |
444 | ||
445 | /* add to have shift center point by 7.8124 kHz */ | |
446 | if (temp > 7812) | |
447 | dig_rf_freq++; | |
448 | ||
7434ca43 MK |
449 | set_reg_bits(state->tab_rftune, 0x0d, 0xff, (u8) dig_rf_freq); |
450 | set_reg_bits(state->tab_rftune, 0x0e, 0xff, (u8) (dig_rf_freq >> 8)); | |
451 | ||
452 | if (rf_freq >= 333000000) | |
453 | set_reg_bits(state->tab_rftune, 0x80, 0x40, 0x40); | |
2a83e4d5 MK |
454 | |
455 | return state->tab_rftune; | |
456 | } | |
457 | ||
458 | /* ------------------------------------------------------------------------- */ | |
459 | ||
460 | static int mxl5007t_write_reg(struct mxl5007t_state *state, u8 reg, u8 val) | |
461 | { | |
462 | u8 buf[] = { reg, val }; | |
463 | struct i2c_msg msg = { .addr = state->i2c_props.addr, .flags = 0, | |
464 | .buf = buf, .len = 2 }; | |
465 | int ret; | |
466 | ||
467 | ret = i2c_transfer(state->i2c_props.adap, &msg, 1); | |
468 | if (ret != 1) { | |
469 | mxl_err("failed!"); | |
470 | return -EREMOTEIO; | |
471 | } | |
472 | return 0; | |
473 | } | |
474 | ||
475 | static int mxl5007t_write_regs(struct mxl5007t_state *state, | |
476 | struct reg_pair_t *reg_pair) | |
477 | { | |
478 | unsigned int i = 0; | |
479 | int ret = 0; | |
480 | ||
481 | while ((ret == 0) && (reg_pair[i].reg || reg_pair[i].val)) { | |
482 | ret = mxl5007t_write_reg(state, | |
483 | reg_pair[i].reg, reg_pair[i].val); | |
484 | i++; | |
485 | } | |
486 | return ret; | |
487 | } | |
488 | ||
489 | static int mxl5007t_read_reg(struct mxl5007t_state *state, u8 reg, u8 *val) | |
490 | { | |
491 | struct i2c_msg msg[] = { | |
492 | { .addr = state->i2c_props.addr, .flags = 0, | |
493 | .buf = ®, .len = 1 }, | |
494 | { .addr = state->i2c_props.addr, .flags = I2C_M_RD, | |
495 | .buf = val, .len = 1 }, | |
496 | }; | |
497 | int ret; | |
498 | ||
499 | ret = i2c_transfer(state->i2c_props.adap, msg, 2); | |
500 | if (ret != 2) { | |
501 | mxl_err("failed!"); | |
502 | return -EREMOTEIO; | |
503 | } | |
504 | return 0; | |
505 | } | |
506 | ||
507 | static int mxl5007t_soft_reset(struct mxl5007t_state *state) | |
508 | { | |
509 | u8 d = 0xff; | |
7434ca43 MK |
510 | struct i2c_msg msg = { |
511 | .addr = state->i2c_props.addr, .flags = 0, | |
512 | .buf = &d, .len = 1 | |
513 | }; | |
2a83e4d5 MK |
514 | int ret = i2c_transfer(state->i2c_props.adap, &msg, 1); |
515 | ||
516 | if (ret != 1) { | |
517 | mxl_err("failed!"); | |
518 | return -EREMOTEIO; | |
519 | } | |
520 | return 0; | |
521 | } | |
522 | ||
523 | static int mxl5007t_tuner_init(struct mxl5007t_state *state, | |
524 | enum mxl5007t_mode mode) | |
525 | { | |
526 | struct reg_pair_t *init_regs; | |
527 | int ret; | |
528 | ||
529 | ret = mxl5007t_soft_reset(state); | |
530 | if (mxl_fail(ret)) | |
531 | goto fail; | |
532 | ||
533 | /* calculate initialization reg array */ | |
534 | init_regs = mxl5007t_calc_init_regs(state, mode); | |
535 | ||
536 | ret = mxl5007t_write_regs(state, init_regs); | |
537 | if (mxl_fail(ret)) | |
538 | goto fail; | |
539 | mdelay(1); | |
2a83e4d5 MK |
540 | fail: |
541 | return ret; | |
542 | } | |
543 | ||
544 | static int mxl5007t_tuner_rf_tune(struct mxl5007t_state *state, u32 rf_freq_hz, | |
545 | enum mxl5007t_bw_mhz bw) | |
546 | { | |
547 | struct reg_pair_t *rf_tune_regs; | |
548 | int ret; | |
549 | ||
550 | /* calculate channel change reg array */ | |
551 | rf_tune_regs = mxl5007t_calc_rf_tune_regs(state, rf_freq_hz, bw); | |
552 | ||
553 | ret = mxl5007t_write_regs(state, rf_tune_regs); | |
554 | if (mxl_fail(ret)) | |
555 | goto fail; | |
556 | msleep(3); | |
557 | fail: | |
558 | return ret; | |
559 | } | |
560 | ||
561 | /* ------------------------------------------------------------------------- */ | |
562 | ||
563 | static int mxl5007t_synth_lock_status(struct mxl5007t_state *state, | |
564 | int *rf_locked, int *ref_locked) | |
565 | { | |
566 | u8 d; | |
567 | int ret; | |
568 | ||
569 | *rf_locked = 0; | |
570 | *ref_locked = 0; | |
571 | ||
7434ca43 | 572 | ret = mxl5007t_read_reg(state, 0xd8, &d); |
2a83e4d5 MK |
573 | if (mxl_fail(ret)) |
574 | goto fail; | |
575 | ||
576 | if ((d & 0x0c) == 0x0c) | |
577 | *rf_locked = 1; | |
578 | ||
579 | if ((d & 0x03) == 0x03) | |
580 | *ref_locked = 1; | |
581 | fail: | |
582 | return ret; | |
583 | } | |
584 | ||
2a83e4d5 MK |
585 | /* ------------------------------------------------------------------------- */ |
586 | ||
587 | static int mxl5007t_get_status(struct dvb_frontend *fe, u32 *status) | |
588 | { | |
589 | struct mxl5007t_state *state = fe->tuner_priv; | |
d90958e6 MK |
590 | int rf_locked, ref_locked, ret; |
591 | ||
592 | *status = 0; | |
2a83e4d5 | 593 | |
2a83e4d5 MK |
594 | if (fe->ops.i2c_gate_ctrl) |
595 | fe->ops.i2c_gate_ctrl(fe, 1); | |
596 | ||
597 | ret = mxl5007t_synth_lock_status(state, &rf_locked, &ref_locked); | |
598 | if (mxl_fail(ret)) | |
599 | goto fail; | |
600 | mxl_debug("%s%s", rf_locked ? "rf locked " : "", | |
601 | ref_locked ? "ref locked" : ""); | |
d90958e6 MK |
602 | |
603 | if ((rf_locked) || (ref_locked)) | |
604 | *status |= TUNER_STATUS_LOCKED; | |
2a83e4d5 MK |
605 | fail: |
606 | if (fe->ops.i2c_gate_ctrl) | |
607 | fe->ops.i2c_gate_ctrl(fe, 0); | |
608 | ||
2a83e4d5 MK |
609 | return ret; |
610 | } | |
611 | ||
612 | /* ------------------------------------------------------------------------- */ | |
613 | ||
614 | static int mxl5007t_set_params(struct dvb_frontend *fe, | |
615 | struct dvb_frontend_parameters *params) | |
616 | { | |
617 | struct mxl5007t_state *state = fe->tuner_priv; | |
618 | enum mxl5007t_bw_mhz bw; | |
619 | enum mxl5007t_mode mode; | |
620 | int ret; | |
621 | u32 freq = params->frequency; | |
622 | ||
623 | if (fe->ops.info.type == FE_ATSC) { | |
624 | switch (params->u.vsb.modulation) { | |
625 | case VSB_8: | |
626 | case VSB_16: | |
7434ca43 | 627 | mode = MxL_MODE_ATSC; |
2a83e4d5 MK |
628 | break; |
629 | case QAM_64: | |
630 | case QAM_256: | |
7434ca43 | 631 | mode = MxL_MODE_CABLE; |
2a83e4d5 MK |
632 | break; |
633 | default: | |
634 | mxl_err("modulation not set!"); | |
635 | return -EINVAL; | |
636 | } | |
637 | bw = MxL_BW_6MHz; | |
638 | } else if (fe->ops.info.type == FE_OFDM) { | |
639 | switch (params->u.ofdm.bandwidth) { | |
640 | case BANDWIDTH_6_MHZ: | |
641 | bw = MxL_BW_6MHz; | |
642 | break; | |
643 | case BANDWIDTH_7_MHZ: | |
644 | bw = MxL_BW_7MHz; | |
645 | break; | |
646 | case BANDWIDTH_8_MHZ: | |
647 | bw = MxL_BW_8MHz; | |
648 | break; | |
649 | default: | |
650 | mxl_err("bandwidth not set!"); | |
651 | return -EINVAL; | |
652 | } | |
7434ca43 | 653 | mode = MxL_MODE_DVBT; |
2a83e4d5 MK |
654 | } else { |
655 | mxl_err("modulation type not supported!"); | |
656 | return -EINVAL; | |
657 | } | |
658 | ||
2a83e4d5 MK |
659 | if (fe->ops.i2c_gate_ctrl) |
660 | fe->ops.i2c_gate_ctrl(fe, 1); | |
661 | ||
c39c1fd2 MK |
662 | mutex_lock(&state->lock); |
663 | ||
2a83e4d5 MK |
664 | ret = mxl5007t_tuner_init(state, mode); |
665 | if (mxl_fail(ret)) | |
666 | goto fail; | |
667 | ||
668 | ret = mxl5007t_tuner_rf_tune(state, freq, bw); | |
669 | if (mxl_fail(ret)) | |
670 | goto fail; | |
671 | ||
672 | state->frequency = freq; | |
673 | state->bandwidth = (fe->ops.info.type == FE_OFDM) ? | |
674 | params->u.ofdm.bandwidth : 0; | |
675 | fail: | |
c39c1fd2 MK |
676 | mutex_unlock(&state->lock); |
677 | ||
2a83e4d5 MK |
678 | if (fe->ops.i2c_gate_ctrl) |
679 | fe->ops.i2c_gate_ctrl(fe, 0); | |
680 | ||
2a83e4d5 MK |
681 | return ret; |
682 | } | |
683 | ||
2a83e4d5 MK |
684 | /* ------------------------------------------------------------------------- */ |
685 | ||
686 | static int mxl5007t_init(struct dvb_frontend *fe) | |
687 | { | |
688 | struct mxl5007t_state *state = fe->tuner_priv; | |
452a53a2 | 689 | int ret; |
2a83e4d5 | 690 | |
452a53a2 MK |
691 | if (fe->ops.i2c_gate_ctrl) |
692 | fe->ops.i2c_gate_ctrl(fe, 1); | |
693 | ||
7434ca43 MK |
694 | /* wake from standby */ |
695 | ret = mxl5007t_write_reg(state, 0x01, 0x01); | |
452a53a2 | 696 | mxl_fail(ret); |
7434ca43 | 697 | |
452a53a2 MK |
698 | if (fe->ops.i2c_gate_ctrl) |
699 | fe->ops.i2c_gate_ctrl(fe, 0); | |
700 | ||
452a53a2 | 701 | return ret; |
2a83e4d5 MK |
702 | } |
703 | ||
704 | static int mxl5007t_sleep(struct dvb_frontend *fe) | |
705 | { | |
706 | struct mxl5007t_state *state = fe->tuner_priv; | |
452a53a2 | 707 | int ret; |
2a83e4d5 | 708 | |
452a53a2 MK |
709 | if (fe->ops.i2c_gate_ctrl) |
710 | fe->ops.i2c_gate_ctrl(fe, 1); | |
711 | ||
7434ca43 MK |
712 | /* enter standby mode */ |
713 | ret = mxl5007t_write_reg(state, 0x01, 0x00); | |
452a53a2 | 714 | mxl_fail(ret); |
7434ca43 MK |
715 | ret = mxl5007t_write_reg(state, 0x0f, 0x00); |
716 | mxl_fail(ret); | |
717 | ||
452a53a2 MK |
718 | if (fe->ops.i2c_gate_ctrl) |
719 | fe->ops.i2c_gate_ctrl(fe, 0); | |
720 | ||
452a53a2 | 721 | return ret; |
2a83e4d5 MK |
722 | } |
723 | ||
724 | /* ------------------------------------------------------------------------- */ | |
725 | ||
726 | static int mxl5007t_get_frequency(struct dvb_frontend *fe, u32 *frequency) | |
727 | { | |
728 | struct mxl5007t_state *state = fe->tuner_priv; | |
729 | *frequency = state->frequency; | |
730 | return 0; | |
731 | } | |
732 | ||
733 | static int mxl5007t_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) | |
734 | { | |
735 | struct mxl5007t_state *state = fe->tuner_priv; | |
736 | *bandwidth = state->bandwidth; | |
737 | return 0; | |
738 | } | |
739 | ||
740 | static int mxl5007t_release(struct dvb_frontend *fe) | |
741 | { | |
742 | struct mxl5007t_state *state = fe->tuner_priv; | |
743 | ||
744 | mutex_lock(&mxl5007t_list_mutex); | |
745 | ||
746 | if (state) | |
747 | hybrid_tuner_release_state(state); | |
748 | ||
749 | mutex_unlock(&mxl5007t_list_mutex); | |
750 | ||
751 | fe->tuner_priv = NULL; | |
752 | ||
753 | return 0; | |
754 | } | |
755 | ||
756 | /* ------------------------------------------------------------------------- */ | |
757 | ||
758 | static struct dvb_tuner_ops mxl5007t_tuner_ops = { | |
759 | .info = { | |
760 | .name = "MaxLinear MxL5007T", | |
761 | }, | |
762 | .init = mxl5007t_init, | |
763 | .sleep = mxl5007t_sleep, | |
764 | .set_params = mxl5007t_set_params, | |
2a83e4d5 MK |
765 | .get_status = mxl5007t_get_status, |
766 | .get_frequency = mxl5007t_get_frequency, | |
767 | .get_bandwidth = mxl5007t_get_bandwidth, | |
768 | .release = mxl5007t_release, | |
769 | }; | |
770 | ||
771 | static int mxl5007t_get_chip_id(struct mxl5007t_state *state) | |
772 | { | |
773 | char *name; | |
774 | int ret; | |
775 | u8 id; | |
776 | ||
7434ca43 | 777 | ret = mxl5007t_read_reg(state, 0xd9, &id); |
2a83e4d5 MK |
778 | if (mxl_fail(ret)) |
779 | goto fail; | |
780 | ||
781 | switch (id) { | |
782 | case MxL_5007_V1_F1: | |
783 | name = "MxL5007.v1.f1"; | |
784 | break; | |
785 | case MxL_5007_V1_F2: | |
786 | name = "MxL5007.v1.f2"; | |
787 | break; | |
788 | case MxL_5007_V2_100_F1: | |
789 | name = "MxL5007.v2.100.f1"; | |
790 | break; | |
791 | case MxL_5007_V2_100_F2: | |
792 | name = "MxL5007.v2.100.f2"; | |
793 | break; | |
794 | case MxL_5007_V2_200_F1: | |
795 | name = "MxL5007.v2.200.f1"; | |
796 | break; | |
797 | case MxL_5007_V2_200_F2: | |
798 | name = "MxL5007.v2.200.f2"; | |
799 | break; | |
7434ca43 MK |
800 | case MxL_5007_V4: |
801 | name = "MxL5007T.v4"; | |
802 | break; | |
2a83e4d5 MK |
803 | default: |
804 | name = "MxL5007T"; | |
d202515b | 805 | printk(KERN_WARNING "%s: unknown rev (%02x)\n", __func__, id); |
2a83e4d5 MK |
806 | id = MxL_UNKNOWN_ID; |
807 | } | |
808 | state->chip_id = id; | |
809 | mxl_info("%s detected @ %d-%04x", name, | |
810 | i2c_adapter_id(state->i2c_props.adap), | |
811 | state->i2c_props.addr); | |
812 | return 0; | |
813 | fail: | |
814 | mxl_warn("unable to identify device @ %d-%04x", | |
815 | i2c_adapter_id(state->i2c_props.adap), | |
816 | state->i2c_props.addr); | |
817 | ||
818 | state->chip_id = MxL_UNKNOWN_ID; | |
819 | return ret; | |
820 | } | |
821 | ||
822 | struct dvb_frontend *mxl5007t_attach(struct dvb_frontend *fe, | |
823 | struct i2c_adapter *i2c, u8 addr, | |
824 | struct mxl5007t_config *cfg) | |
825 | { | |
826 | struct mxl5007t_state *state = NULL; | |
827 | int instance, ret; | |
828 | ||
829 | mutex_lock(&mxl5007t_list_mutex); | |
830 | instance = hybrid_tuner_request_state(struct mxl5007t_state, state, | |
831 | hybrid_tuner_instance_list, | |
3d0081dd | 832 | i2c, addr, "mxl5007t"); |
2a83e4d5 MK |
833 | switch (instance) { |
834 | case 0: | |
835 | goto fail; | |
2a83e4d5 MK |
836 | case 1: |
837 | /* new tuner instance */ | |
838 | state->config = cfg; | |
839 | ||
840 | mutex_init(&state->lock); | |
841 | ||
2a83e4d5 MK |
842 | if (fe->ops.i2c_gate_ctrl) |
843 | fe->ops.i2c_gate_ctrl(fe, 1); | |
844 | ||
845 | ret = mxl5007t_get_chip_id(state); | |
846 | ||
847 | if (fe->ops.i2c_gate_ctrl) | |
848 | fe->ops.i2c_gate_ctrl(fe, 0); | |
849 | ||
2a83e4d5 MK |
850 | /* check return value of mxl5007t_get_chip_id */ |
851 | if (mxl_fail(ret)) | |
852 | goto fail; | |
853 | break; | |
854 | default: | |
855 | /* existing tuner instance */ | |
856 | break; | |
857 | } | |
858 | fe->tuner_priv = state; | |
859 | mutex_unlock(&mxl5007t_list_mutex); | |
860 | ||
861 | memcpy(&fe->ops.tuner_ops, &mxl5007t_tuner_ops, | |
862 | sizeof(struct dvb_tuner_ops)); | |
863 | ||
864 | return fe; | |
865 | fail: | |
866 | mutex_unlock(&mxl5007t_list_mutex); | |
867 | ||
868 | mxl5007t_release(fe); | |
869 | return NULL; | |
870 | } | |
871 | EXPORT_SYMBOL_GPL(mxl5007t_attach); | |
872 | MODULE_DESCRIPTION("MaxLinear MxL5007T Silicon IC tuner driver"); | |
873 | MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>"); | |
874 | MODULE_LICENSE("GPL"); | |
7434ca43 | 875 | MODULE_VERSION("0.2"); |
2a83e4d5 MK |
876 | |
877 | /* | |
878 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
879 | * --------------------------------------------------------------------------- | |
880 | * Local variables: | |
881 | * c-basic-offset: 8 | |
882 | * End: | |
883 | */ |