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Commit | Line | Data |
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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 | ||
d697b4ce MK |
168 | enum mxl5007t_if_freq if_freq; |
169 | ||
2a83e4d5 MK |
170 | u32 frequency; |
171 | u32 bandwidth; | |
172 | }; | |
173 | ||
174 | /* ------------------------------------------------------------------------- */ | |
175 | ||
176 | /* called by _init and _rftun to manipulate the register arrays */ | |
177 | ||
178 | static void set_reg_bits(struct reg_pair_t *reg_pair, u8 reg, u8 mask, u8 val) | |
179 | { | |
180 | unsigned int i = 0; | |
181 | ||
182 | while (reg_pair[i].reg || reg_pair[i].val) { | |
183 | if (reg_pair[i].reg == reg) { | |
184 | reg_pair[i].val &= ~mask; | |
185 | reg_pair[i].val |= val; | |
186 | } | |
187 | i++; | |
188 | ||
189 | } | |
190 | return; | |
191 | } | |
192 | ||
193 | static void copy_reg_bits(struct reg_pair_t *reg_pair1, | |
194 | struct reg_pair_t *reg_pair2) | |
195 | { | |
196 | unsigned int i, j; | |
197 | ||
198 | i = j = 0; | |
199 | ||
200 | while (reg_pair1[i].reg || reg_pair1[i].val) { | |
c95a419a | 201 | while (reg_pair2[j].reg || reg_pair2[j].val) { |
2a83e4d5 MK |
202 | if (reg_pair1[i].reg != reg_pair2[j].reg) { |
203 | j++; | |
204 | continue; | |
205 | } | |
206 | reg_pair2[j].val = reg_pair1[i].val; | |
207 | break; | |
208 | } | |
209 | i++; | |
210 | } | |
211 | return; | |
212 | } | |
213 | ||
214 | /* ------------------------------------------------------------------------- */ | |
215 | ||
216 | static void mxl5007t_set_mode_bits(struct mxl5007t_state *state, | |
217 | enum mxl5007t_mode mode, | |
218 | s32 if_diff_out_level) | |
219 | { | |
220 | switch (mode) { | |
7434ca43 MK |
221 | case MxL_MODE_ATSC: |
222 | set_reg_bits(state->tab_init, 0x06, 0x1f, 0x12); | |
2a83e4d5 | 223 | break; |
7434ca43 MK |
224 | case MxL_MODE_DVBT: |
225 | set_reg_bits(state->tab_init, 0x06, 0x1f, 0x11); | |
2a83e4d5 | 226 | break; |
7434ca43 MK |
227 | case MxL_MODE_ISDBT: |
228 | set_reg_bits(state->tab_init, 0x06, 0x1f, 0x10); | |
229 | break; | |
230 | case MxL_MODE_CABLE: | |
231 | set_reg_bits(state->tab_init_cable, 0x09, 0xff, 0xc1); | |
232 | set_reg_bits(state->tab_init_cable, 0x0a, 0xff, | |
2a83e4d5 | 233 | 8 - if_diff_out_level); |
7434ca43 | 234 | set_reg_bits(state->tab_init_cable, 0x0b, 0xff, 0x17); |
2a83e4d5 | 235 | break; |
2a83e4d5 MK |
236 | default: |
237 | mxl_fail(-EINVAL); | |
238 | } | |
239 | return; | |
240 | } | |
241 | ||
242 | static void mxl5007t_set_if_freq_bits(struct mxl5007t_state *state, | |
243 | enum mxl5007t_if_freq if_freq, | |
244 | int invert_if) | |
245 | { | |
246 | u8 val; | |
247 | ||
248 | switch (if_freq) { | |
249 | case MxL_IF_4_MHZ: | |
250 | val = 0x00; | |
251 | break; | |
252 | case MxL_IF_4_5_MHZ: | |
7434ca43 | 253 | val = 0x02; |
2a83e4d5 MK |
254 | break; |
255 | case MxL_IF_4_57_MHZ: | |
7434ca43 | 256 | val = 0x03; |
2a83e4d5 MK |
257 | break; |
258 | case MxL_IF_5_MHZ: | |
7434ca43 | 259 | val = 0x04; |
2a83e4d5 MK |
260 | break; |
261 | case MxL_IF_5_38_MHZ: | |
7434ca43 | 262 | val = 0x05; |
2a83e4d5 MK |
263 | break; |
264 | case MxL_IF_6_MHZ: | |
7434ca43 | 265 | val = 0x06; |
2a83e4d5 MK |
266 | break; |
267 | case MxL_IF_6_28_MHZ: | |
7434ca43 | 268 | val = 0x07; |
2a83e4d5 MK |
269 | break; |
270 | case MxL_IF_9_1915_MHZ: | |
7434ca43 | 271 | val = 0x08; |
2a83e4d5 MK |
272 | break; |
273 | case MxL_IF_35_25_MHZ: | |
7434ca43 | 274 | val = 0x09; |
2a83e4d5 MK |
275 | break; |
276 | case MxL_IF_36_15_MHZ: | |
7434ca43 | 277 | val = 0x0a; |
2a83e4d5 MK |
278 | break; |
279 | case MxL_IF_44_MHZ: | |
7434ca43 | 280 | val = 0x0b; |
2a83e4d5 MK |
281 | break; |
282 | default: | |
283 | mxl_fail(-EINVAL); | |
284 | return; | |
285 | } | |
7434ca43 | 286 | set_reg_bits(state->tab_init, 0x02, 0x0f, val); |
2a83e4d5 MK |
287 | |
288 | /* set inverted IF or normal IF */ | |
7434ca43 | 289 | set_reg_bits(state->tab_init, 0x02, 0x10, invert_if ? 0x10 : 0x00); |
2a83e4d5 | 290 | |
d697b4ce MK |
291 | state->if_freq = if_freq; |
292 | ||
2a83e4d5 MK |
293 | return; |
294 | } | |
295 | ||
296 | static void mxl5007t_set_xtal_freq_bits(struct mxl5007t_state *state, | |
297 | enum mxl5007t_xtal_freq xtal_freq) | |
298 | { | |
2a83e4d5 MK |
299 | switch (xtal_freq) { |
300 | case MxL_XTAL_16_MHZ: | |
7434ca43 MK |
301 | /* select xtal freq & ref freq */ |
302 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x00); | |
303 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x00); | |
2a83e4d5 MK |
304 | break; |
305 | case MxL_XTAL_20_MHZ: | |
7434ca43 MK |
306 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x10); |
307 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x01); | |
2a83e4d5 MK |
308 | break; |
309 | case MxL_XTAL_20_25_MHZ: | |
7434ca43 MK |
310 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x20); |
311 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x02); | |
2a83e4d5 MK |
312 | break; |
313 | case MxL_XTAL_20_48_MHZ: | |
7434ca43 MK |
314 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x30); |
315 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x03); | |
2a83e4d5 MK |
316 | break; |
317 | case MxL_XTAL_24_MHZ: | |
7434ca43 MK |
318 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x40); |
319 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x04); | |
2a83e4d5 MK |
320 | break; |
321 | case MxL_XTAL_25_MHZ: | |
7434ca43 MK |
322 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x50); |
323 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x05); | |
2a83e4d5 MK |
324 | break; |
325 | case MxL_XTAL_25_14_MHZ: | |
7434ca43 MK |
326 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x60); |
327 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x06); | |
2a83e4d5 MK |
328 | break; |
329 | case MxL_XTAL_27_MHZ: | |
7434ca43 MK |
330 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x70); |
331 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x07); | |
2a83e4d5 MK |
332 | break; |
333 | case MxL_XTAL_28_8_MHZ: | |
7434ca43 MK |
334 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x80); |
335 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x08); | |
2a83e4d5 MK |
336 | break; |
337 | case MxL_XTAL_32_MHZ: | |
7434ca43 MK |
338 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x90); |
339 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x09); | |
2a83e4d5 MK |
340 | break; |
341 | case MxL_XTAL_40_MHZ: | |
7434ca43 MK |
342 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xa0); |
343 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0a); | |
2a83e4d5 MK |
344 | break; |
345 | case MxL_XTAL_44_MHZ: | |
7434ca43 MK |
346 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xb0); |
347 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0b); | |
2a83e4d5 MK |
348 | break; |
349 | case MxL_XTAL_48_MHZ: | |
7434ca43 MK |
350 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xc0); |
351 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0c); | |
2a83e4d5 MK |
352 | break; |
353 | case MxL_XTAL_49_3811_MHZ: | |
7434ca43 MK |
354 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xd0); |
355 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0d); | |
2a83e4d5 MK |
356 | break; |
357 | default: | |
358 | mxl_fail(-EINVAL); | |
359 | return; | |
360 | } | |
2a83e4d5 MK |
361 | |
362 | return; | |
363 | } | |
364 | ||
365 | static struct reg_pair_t *mxl5007t_calc_init_regs(struct mxl5007t_state *state, | |
366 | enum mxl5007t_mode mode) | |
367 | { | |
368 | struct mxl5007t_config *cfg = state->config; | |
369 | ||
370 | memcpy(&state->tab_init, &init_tab, sizeof(init_tab)); | |
371 | memcpy(&state->tab_init_cable, &init_tab_cable, sizeof(init_tab_cable)); | |
372 | ||
373 | mxl5007t_set_mode_bits(state, mode, cfg->if_diff_out_level); | |
374 | mxl5007t_set_if_freq_bits(state, cfg->if_freq_hz, cfg->invert_if); | |
375 | mxl5007t_set_xtal_freq_bits(state, cfg->xtal_freq_hz); | |
376 | ||
7434ca43 MK |
377 | set_reg_bits(state->tab_init, 0x04, 0x01, cfg->loop_thru_enable); |
378 | set_reg_bits(state->tab_init, 0x03, 0x08, cfg->clk_out_enable << 3); | |
379 | set_reg_bits(state->tab_init, 0x03, 0x07, cfg->clk_out_amp); | |
2a83e4d5 | 380 | |
7434ca43 | 381 | if (mode >= MxL_MODE_CABLE) { |
2a83e4d5 MK |
382 | copy_reg_bits(state->tab_init, state->tab_init_cable); |
383 | return state->tab_init_cable; | |
384 | } else | |
385 | return state->tab_init; | |
386 | } | |
387 | ||
388 | /* ------------------------------------------------------------------------- */ | |
389 | ||
390 | enum mxl5007t_bw_mhz { | |
391 | MxL_BW_6MHz = 6, | |
392 | MxL_BW_7MHz = 7, | |
393 | MxL_BW_8MHz = 8, | |
394 | }; | |
395 | ||
396 | static void mxl5007t_set_bw_bits(struct mxl5007t_state *state, | |
397 | enum mxl5007t_bw_mhz bw) | |
398 | { | |
399 | u8 val; | |
400 | ||
401 | switch (bw) { | |
402 | case MxL_BW_6MHz: | |
403 | val = 0x15; /* set DIG_MODEINDEX, DIG_MODEINDEX_A, | |
404 | * and DIG_MODEINDEX_CSF */ | |
405 | break; | |
406 | case MxL_BW_7MHz: | |
7434ca43 | 407 | val = 0x2a; |
2a83e4d5 MK |
408 | break; |
409 | case MxL_BW_8MHz: | |
410 | val = 0x3f; | |
411 | break; | |
412 | default: | |
413 | mxl_fail(-EINVAL); | |
414 | return; | |
415 | } | |
7434ca43 | 416 | set_reg_bits(state->tab_rftune, 0x0c, 0x3f, val); |
2a83e4d5 MK |
417 | |
418 | return; | |
419 | } | |
420 | ||
421 | static struct | |
422 | reg_pair_t *mxl5007t_calc_rf_tune_regs(struct mxl5007t_state *state, | |
423 | u32 rf_freq, enum mxl5007t_bw_mhz bw) | |
424 | { | |
425 | u32 dig_rf_freq = 0; | |
426 | u32 temp; | |
427 | u32 frac_divider = 1000000; | |
428 | unsigned int i; | |
429 | ||
430 | memcpy(&state->tab_rftune, ®_pair_rftune, sizeof(reg_pair_rftune)); | |
431 | ||
432 | mxl5007t_set_bw_bits(state, bw); | |
433 | ||
434 | /* Convert RF frequency into 16 bits => | |
435 | * 10 bit integer (MHz) + 6 bit fraction */ | |
436 | dig_rf_freq = rf_freq / MHz; | |
437 | ||
438 | temp = rf_freq % MHz; | |
439 | ||
440 | for (i = 0; i < 6; i++) { | |
441 | dig_rf_freq <<= 1; | |
442 | frac_divider /= 2; | |
443 | if (temp > frac_divider) { | |
444 | temp -= frac_divider; | |
445 | dig_rf_freq++; | |
446 | } | |
447 | } | |
448 | ||
449 | /* add to have shift center point by 7.8124 kHz */ | |
450 | if (temp > 7812) | |
451 | dig_rf_freq++; | |
452 | ||
7434ca43 MK |
453 | set_reg_bits(state->tab_rftune, 0x0d, 0xff, (u8) dig_rf_freq); |
454 | set_reg_bits(state->tab_rftune, 0x0e, 0xff, (u8) (dig_rf_freq >> 8)); | |
455 | ||
456 | if (rf_freq >= 333000000) | |
457 | set_reg_bits(state->tab_rftune, 0x80, 0x40, 0x40); | |
2a83e4d5 MK |
458 | |
459 | return state->tab_rftune; | |
460 | } | |
461 | ||
462 | /* ------------------------------------------------------------------------- */ | |
463 | ||
464 | static int mxl5007t_write_reg(struct mxl5007t_state *state, u8 reg, u8 val) | |
465 | { | |
466 | u8 buf[] = { reg, val }; | |
467 | struct i2c_msg msg = { .addr = state->i2c_props.addr, .flags = 0, | |
468 | .buf = buf, .len = 2 }; | |
469 | int ret; | |
470 | ||
471 | ret = i2c_transfer(state->i2c_props.adap, &msg, 1); | |
472 | if (ret != 1) { | |
473 | mxl_err("failed!"); | |
474 | return -EREMOTEIO; | |
475 | } | |
476 | return 0; | |
477 | } | |
478 | ||
479 | static int mxl5007t_write_regs(struct mxl5007t_state *state, | |
480 | struct reg_pair_t *reg_pair) | |
481 | { | |
482 | unsigned int i = 0; | |
483 | int ret = 0; | |
484 | ||
485 | while ((ret == 0) && (reg_pair[i].reg || reg_pair[i].val)) { | |
486 | ret = mxl5007t_write_reg(state, | |
487 | reg_pair[i].reg, reg_pair[i].val); | |
488 | i++; | |
489 | } | |
490 | return ret; | |
491 | } | |
492 | ||
493 | static int mxl5007t_read_reg(struct mxl5007t_state *state, u8 reg, u8 *val) | |
494 | { | |
576b849e | 495 | u8 buf[2] = { 0xfb, reg }; |
2a83e4d5 MK |
496 | struct i2c_msg msg[] = { |
497 | { .addr = state->i2c_props.addr, .flags = 0, | |
576b849e | 498 | .buf = buf, .len = 2 }, |
2a83e4d5 MK |
499 | { .addr = state->i2c_props.addr, .flags = I2C_M_RD, |
500 | .buf = val, .len = 1 }, | |
501 | }; | |
502 | int ret; | |
503 | ||
504 | ret = i2c_transfer(state->i2c_props.adap, msg, 2); | |
505 | if (ret != 2) { | |
506 | mxl_err("failed!"); | |
507 | return -EREMOTEIO; | |
508 | } | |
509 | return 0; | |
510 | } | |
511 | ||
512 | static int mxl5007t_soft_reset(struct mxl5007t_state *state) | |
513 | { | |
514 | u8 d = 0xff; | |
7434ca43 MK |
515 | struct i2c_msg msg = { |
516 | .addr = state->i2c_props.addr, .flags = 0, | |
517 | .buf = &d, .len = 1 | |
518 | }; | |
2a83e4d5 MK |
519 | int ret = i2c_transfer(state->i2c_props.adap, &msg, 1); |
520 | ||
521 | if (ret != 1) { | |
522 | mxl_err("failed!"); | |
523 | return -EREMOTEIO; | |
524 | } | |
525 | return 0; | |
526 | } | |
527 | ||
528 | static int mxl5007t_tuner_init(struct mxl5007t_state *state, | |
529 | enum mxl5007t_mode mode) | |
530 | { | |
531 | struct reg_pair_t *init_regs; | |
532 | int ret; | |
533 | ||
2a83e4d5 MK |
534 | /* calculate initialization reg array */ |
535 | init_regs = mxl5007t_calc_init_regs(state, mode); | |
536 | ||
537 | ret = mxl5007t_write_regs(state, init_regs); | |
538 | if (mxl_fail(ret)) | |
539 | goto fail; | |
540 | mdelay(1); | |
2a83e4d5 MK |
541 | fail: |
542 | return ret; | |
543 | } | |
544 | ||
545 | static int mxl5007t_tuner_rf_tune(struct mxl5007t_state *state, u32 rf_freq_hz, | |
546 | enum mxl5007t_bw_mhz bw) | |
547 | { | |
548 | struct reg_pair_t *rf_tune_regs; | |
549 | int ret; | |
550 | ||
551 | /* calculate channel change reg array */ | |
552 | rf_tune_regs = mxl5007t_calc_rf_tune_regs(state, rf_freq_hz, bw); | |
553 | ||
554 | ret = mxl5007t_write_regs(state, rf_tune_regs); | |
555 | if (mxl_fail(ret)) | |
556 | goto fail; | |
557 | msleep(3); | |
558 | fail: | |
559 | return ret; | |
560 | } | |
561 | ||
562 | /* ------------------------------------------------------------------------- */ | |
563 | ||
564 | static int mxl5007t_synth_lock_status(struct mxl5007t_state *state, | |
565 | int *rf_locked, int *ref_locked) | |
566 | { | |
567 | u8 d; | |
568 | int ret; | |
569 | ||
570 | *rf_locked = 0; | |
571 | *ref_locked = 0; | |
572 | ||
7434ca43 | 573 | ret = mxl5007t_read_reg(state, 0xd8, &d); |
2a83e4d5 MK |
574 | if (mxl_fail(ret)) |
575 | goto fail; | |
576 | ||
577 | if ((d & 0x0c) == 0x0c) | |
578 | *rf_locked = 1; | |
579 | ||
580 | if ((d & 0x03) == 0x03) | |
581 | *ref_locked = 1; | |
582 | fail: | |
583 | return ret; | |
584 | } | |
585 | ||
2a83e4d5 MK |
586 | /* ------------------------------------------------------------------------- */ |
587 | ||
588 | static int mxl5007t_get_status(struct dvb_frontend *fe, u32 *status) | |
589 | { | |
590 | struct mxl5007t_state *state = fe->tuner_priv; | |
d90958e6 MK |
591 | int rf_locked, ref_locked, ret; |
592 | ||
593 | *status = 0; | |
2a83e4d5 | 594 | |
2a83e4d5 MK |
595 | if (fe->ops.i2c_gate_ctrl) |
596 | fe->ops.i2c_gate_ctrl(fe, 1); | |
597 | ||
598 | ret = mxl5007t_synth_lock_status(state, &rf_locked, &ref_locked); | |
599 | if (mxl_fail(ret)) | |
600 | goto fail; | |
601 | mxl_debug("%s%s", rf_locked ? "rf locked " : "", | |
602 | ref_locked ? "ref locked" : ""); | |
d90958e6 MK |
603 | |
604 | if ((rf_locked) || (ref_locked)) | |
605 | *status |= TUNER_STATUS_LOCKED; | |
2a83e4d5 MK |
606 | fail: |
607 | if (fe->ops.i2c_gate_ctrl) | |
608 | fe->ops.i2c_gate_ctrl(fe, 0); | |
609 | ||
2a83e4d5 MK |
610 | return ret; |
611 | } | |
612 | ||
613 | /* ------------------------------------------------------------------------- */ | |
614 | ||
14d24d14 | 615 | static int mxl5007t_set_params(struct dvb_frontend *fe) |
2a83e4d5 | 616 | { |
e12617e6 MCC |
617 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
618 | u32 delsys = c->delivery_system; | |
2a83e4d5 MK |
619 | struct mxl5007t_state *state = fe->tuner_priv; |
620 | enum mxl5007t_bw_mhz bw; | |
621 | enum mxl5007t_mode mode; | |
622 | int ret; | |
e12617e6 | 623 | u32 freq = c->frequency; |
2a83e4d5 | 624 | |
e12617e6 MCC |
625 | switch (delsys) { |
626 | case SYS_ATSC: | |
627 | mode = MxL_MODE_ATSC; | |
628 | bw = MxL_BW_6MHz; | |
629 | break; | |
630 | case SYS_DVBC_ANNEX_B: | |
631 | mode = MxL_MODE_CABLE; | |
2a83e4d5 | 632 | bw = MxL_BW_6MHz; |
e12617e6 MCC |
633 | break; |
634 | case SYS_DVBT: | |
635 | case SYS_DVBT2: | |
636 | mode = MxL_MODE_DVBT; | |
637 | switch (c->bandwidth_hz) { | |
638 | case 6000000: | |
2a83e4d5 MK |
639 | bw = MxL_BW_6MHz; |
640 | break; | |
e12617e6 | 641 | case 7000000: |
2a83e4d5 | 642 | bw = MxL_BW_7MHz; |
9e94136d | 643 | break; |
e12617e6 | 644 | case 8000000: |
2a83e4d5 | 645 | bw = MxL_BW_8MHz; |
9e94136d | 646 | break; |
2a83e4d5 | 647 | default: |
2a83e4d5 MK |
648 | return -EINVAL; |
649 | } | |
e12617e6 MCC |
650 | break; |
651 | default: | |
2a83e4d5 MK |
652 | mxl_err("modulation type not supported!"); |
653 | return -EINVAL; | |
654 | } | |
655 | ||
2a83e4d5 MK |
656 | if (fe->ops.i2c_gate_ctrl) |
657 | fe->ops.i2c_gate_ctrl(fe, 1); | |
658 | ||
c39c1fd2 MK |
659 | mutex_lock(&state->lock); |
660 | ||
2a83e4d5 MK |
661 | ret = mxl5007t_tuner_init(state, mode); |
662 | if (mxl_fail(ret)) | |
663 | goto fail; | |
664 | ||
665 | ret = mxl5007t_tuner_rf_tune(state, freq, bw); | |
666 | if (mxl_fail(ret)) | |
667 | goto fail; | |
668 | ||
669 | state->frequency = freq; | |
c6f56e7d | 670 | state->bandwidth = c->bandwidth_hz; |
2a83e4d5 | 671 | fail: |
c39c1fd2 MK |
672 | mutex_unlock(&state->lock); |
673 | ||
2a83e4d5 MK |
674 | if (fe->ops.i2c_gate_ctrl) |
675 | fe->ops.i2c_gate_ctrl(fe, 0); | |
676 | ||
2a83e4d5 MK |
677 | return ret; |
678 | } | |
679 | ||
2a83e4d5 MK |
680 | /* ------------------------------------------------------------------------- */ |
681 | ||
682 | static int mxl5007t_init(struct dvb_frontend *fe) | |
683 | { | |
684 | struct mxl5007t_state *state = fe->tuner_priv; | |
452a53a2 | 685 | int ret; |
2a83e4d5 | 686 | |
452a53a2 MK |
687 | if (fe->ops.i2c_gate_ctrl) |
688 | fe->ops.i2c_gate_ctrl(fe, 1); | |
689 | ||
7434ca43 MK |
690 | /* wake from standby */ |
691 | ret = mxl5007t_write_reg(state, 0x01, 0x01); | |
452a53a2 | 692 | mxl_fail(ret); |
7434ca43 | 693 | |
452a53a2 MK |
694 | if (fe->ops.i2c_gate_ctrl) |
695 | fe->ops.i2c_gate_ctrl(fe, 0); | |
696 | ||
452a53a2 | 697 | return ret; |
2a83e4d5 MK |
698 | } |
699 | ||
700 | static int mxl5007t_sleep(struct dvb_frontend *fe) | |
701 | { | |
702 | struct mxl5007t_state *state = fe->tuner_priv; | |
452a53a2 | 703 | int ret; |
2a83e4d5 | 704 | |
452a53a2 MK |
705 | if (fe->ops.i2c_gate_ctrl) |
706 | fe->ops.i2c_gate_ctrl(fe, 1); | |
707 | ||
7434ca43 MK |
708 | /* enter standby mode */ |
709 | ret = mxl5007t_write_reg(state, 0x01, 0x00); | |
452a53a2 | 710 | mxl_fail(ret); |
7434ca43 MK |
711 | ret = mxl5007t_write_reg(state, 0x0f, 0x00); |
712 | mxl_fail(ret); | |
713 | ||
452a53a2 MK |
714 | if (fe->ops.i2c_gate_ctrl) |
715 | fe->ops.i2c_gate_ctrl(fe, 0); | |
716 | ||
452a53a2 | 717 | return ret; |
2a83e4d5 MK |
718 | } |
719 | ||
720 | /* ------------------------------------------------------------------------- */ | |
721 | ||
722 | static int mxl5007t_get_frequency(struct dvb_frontend *fe, u32 *frequency) | |
723 | { | |
724 | struct mxl5007t_state *state = fe->tuner_priv; | |
725 | *frequency = state->frequency; | |
726 | return 0; | |
727 | } | |
728 | ||
729 | static int mxl5007t_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) | |
730 | { | |
731 | struct mxl5007t_state *state = fe->tuner_priv; | |
732 | *bandwidth = state->bandwidth; | |
733 | return 0; | |
734 | } | |
735 | ||
d697b4ce MK |
736 | static int mxl5007t_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) |
737 | { | |
738 | struct mxl5007t_state *state = fe->tuner_priv; | |
739 | ||
740 | *frequency = 0; | |
741 | ||
742 | switch (state->if_freq) { | |
743 | case MxL_IF_4_MHZ: | |
744 | *frequency = 4000000; | |
745 | break; | |
746 | case MxL_IF_4_5_MHZ: | |
747 | *frequency = 4500000; | |
748 | break; | |
749 | case MxL_IF_4_57_MHZ: | |
750 | *frequency = 4570000; | |
751 | break; | |
752 | case MxL_IF_5_MHZ: | |
753 | *frequency = 5000000; | |
754 | break; | |
755 | case MxL_IF_5_38_MHZ: | |
756 | *frequency = 5380000; | |
757 | break; | |
758 | case MxL_IF_6_MHZ: | |
759 | *frequency = 6000000; | |
760 | break; | |
761 | case MxL_IF_6_28_MHZ: | |
762 | *frequency = 6280000; | |
763 | break; | |
764 | case MxL_IF_9_1915_MHZ: | |
765 | *frequency = 9191500; | |
766 | break; | |
767 | case MxL_IF_35_25_MHZ: | |
768 | *frequency = 35250000; | |
769 | break; | |
770 | case MxL_IF_36_15_MHZ: | |
771 | *frequency = 36150000; | |
772 | break; | |
773 | case MxL_IF_44_MHZ: | |
774 | *frequency = 44000000; | |
775 | break; | |
776 | } | |
777 | return 0; | |
778 | } | |
779 | ||
2a83e4d5 MK |
780 | static int mxl5007t_release(struct dvb_frontend *fe) |
781 | { | |
782 | struct mxl5007t_state *state = fe->tuner_priv; | |
783 | ||
784 | mutex_lock(&mxl5007t_list_mutex); | |
785 | ||
786 | if (state) | |
787 | hybrid_tuner_release_state(state); | |
788 | ||
789 | mutex_unlock(&mxl5007t_list_mutex); | |
790 | ||
791 | fe->tuner_priv = NULL; | |
792 | ||
793 | return 0; | |
794 | } | |
795 | ||
796 | /* ------------------------------------------------------------------------- */ | |
797 | ||
798 | static struct dvb_tuner_ops mxl5007t_tuner_ops = { | |
799 | .info = { | |
800 | .name = "MaxLinear MxL5007T", | |
801 | }, | |
802 | .init = mxl5007t_init, | |
803 | .sleep = mxl5007t_sleep, | |
804 | .set_params = mxl5007t_set_params, | |
2a83e4d5 MK |
805 | .get_status = mxl5007t_get_status, |
806 | .get_frequency = mxl5007t_get_frequency, | |
807 | .get_bandwidth = mxl5007t_get_bandwidth, | |
808 | .release = mxl5007t_release, | |
d697b4ce | 809 | .get_if_frequency = mxl5007t_get_if_frequency, |
2a83e4d5 MK |
810 | }; |
811 | ||
812 | static int mxl5007t_get_chip_id(struct mxl5007t_state *state) | |
813 | { | |
814 | char *name; | |
815 | int ret; | |
816 | u8 id; | |
817 | ||
7434ca43 | 818 | ret = mxl5007t_read_reg(state, 0xd9, &id); |
2a83e4d5 MK |
819 | if (mxl_fail(ret)) |
820 | goto fail; | |
821 | ||
822 | switch (id) { | |
823 | case MxL_5007_V1_F1: | |
824 | name = "MxL5007.v1.f1"; | |
825 | break; | |
826 | case MxL_5007_V1_F2: | |
827 | name = "MxL5007.v1.f2"; | |
828 | break; | |
829 | case MxL_5007_V2_100_F1: | |
830 | name = "MxL5007.v2.100.f1"; | |
831 | break; | |
832 | case MxL_5007_V2_100_F2: | |
833 | name = "MxL5007.v2.100.f2"; | |
834 | break; | |
835 | case MxL_5007_V2_200_F1: | |
836 | name = "MxL5007.v2.200.f1"; | |
837 | break; | |
838 | case MxL_5007_V2_200_F2: | |
839 | name = "MxL5007.v2.200.f2"; | |
840 | break; | |
7434ca43 MK |
841 | case MxL_5007_V4: |
842 | name = "MxL5007T.v4"; | |
843 | break; | |
2a83e4d5 MK |
844 | default: |
845 | name = "MxL5007T"; | |
d202515b | 846 | printk(KERN_WARNING "%s: unknown rev (%02x)\n", __func__, id); |
2a83e4d5 MK |
847 | id = MxL_UNKNOWN_ID; |
848 | } | |
849 | state->chip_id = id; | |
850 | mxl_info("%s detected @ %d-%04x", name, | |
851 | i2c_adapter_id(state->i2c_props.adap), | |
852 | state->i2c_props.addr); | |
853 | return 0; | |
854 | fail: | |
855 | mxl_warn("unable to identify device @ %d-%04x", | |
856 | i2c_adapter_id(state->i2c_props.adap), | |
857 | state->i2c_props.addr); | |
858 | ||
859 | state->chip_id = MxL_UNKNOWN_ID; | |
860 | return ret; | |
861 | } | |
862 | ||
863 | struct dvb_frontend *mxl5007t_attach(struct dvb_frontend *fe, | |
864 | struct i2c_adapter *i2c, u8 addr, | |
865 | struct mxl5007t_config *cfg) | |
866 | { | |
867 | struct mxl5007t_state *state = NULL; | |
868 | int instance, ret; | |
869 | ||
870 | mutex_lock(&mxl5007t_list_mutex); | |
871 | instance = hybrid_tuner_request_state(struct mxl5007t_state, state, | |
872 | hybrid_tuner_instance_list, | |
3d0081dd | 873 | i2c, addr, "mxl5007t"); |
2a83e4d5 MK |
874 | switch (instance) { |
875 | case 0: | |
876 | goto fail; | |
2a83e4d5 MK |
877 | case 1: |
878 | /* new tuner instance */ | |
879 | state->config = cfg; | |
880 | ||
881 | mutex_init(&state->lock); | |
882 | ||
2a83e4d5 MK |
883 | if (fe->ops.i2c_gate_ctrl) |
884 | fe->ops.i2c_gate_ctrl(fe, 1); | |
885 | ||
886 | ret = mxl5007t_get_chip_id(state); | |
887 | ||
888 | if (fe->ops.i2c_gate_ctrl) | |
889 | fe->ops.i2c_gate_ctrl(fe, 0); | |
890 | ||
2a83e4d5 MK |
891 | /* check return value of mxl5007t_get_chip_id */ |
892 | if (mxl_fail(ret)) | |
893 | goto fail; | |
894 | break; | |
895 | default: | |
896 | /* existing tuner instance */ | |
897 | break; | |
898 | } | |
fe4860af JAR |
899 | |
900 | if (fe->ops.i2c_gate_ctrl) | |
901 | fe->ops.i2c_gate_ctrl(fe, 1); | |
902 | ||
903 | ret = mxl5007t_soft_reset(state); | |
904 | ||
905 | if (fe->ops.i2c_gate_ctrl) | |
906 | fe->ops.i2c_gate_ctrl(fe, 0); | |
907 | ||
908 | if (mxl_fail(ret)) | |
909 | goto fail; | |
910 | ||
2a83e4d5 | 911 | fe->tuner_priv = state; |
fe4860af | 912 | |
2a83e4d5 MK |
913 | mutex_unlock(&mxl5007t_list_mutex); |
914 | ||
915 | memcpy(&fe->ops.tuner_ops, &mxl5007t_tuner_ops, | |
916 | sizeof(struct dvb_tuner_ops)); | |
917 | ||
918 | return fe; | |
919 | fail: | |
920 | mutex_unlock(&mxl5007t_list_mutex); | |
921 | ||
922 | mxl5007t_release(fe); | |
923 | return NULL; | |
924 | } | |
925 | EXPORT_SYMBOL_GPL(mxl5007t_attach); | |
926 | MODULE_DESCRIPTION("MaxLinear MxL5007T Silicon IC tuner driver"); | |
927 | MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>"); | |
928 | MODULE_LICENSE("GPL"); | |
7434ca43 | 929 | MODULE_VERSION("0.2"); |
2a83e4d5 MK |
930 | |
931 | /* | |
932 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
933 | * --------------------------------------------------------------------------- | |
934 | * Local variables: | |
935 | * c-basic-offset: 8 | |
936 | * End: | |
937 | */ |