]>
Commit | Line | Data |
---|---|---|
c942fddf | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2a83e4d5 MK |
2 | /* |
3 | * mxl5007t.c - driver for the MaxLinear MxL5007T silicon tuner | |
4 | * | |
7434ca43 | 5 | * Copyright (C) 2008, 2009 Michael Krufky <mkrufky@linuxtv.org> |
2a83e4d5 MK |
6 | */ |
7 | ||
8 | #include <linux/i2c.h> | |
9 | #include <linux/types.h> | |
10 | #include <linux/videodev2.h> | |
11 | #include "tuner-i2c.h" | |
12 | #include "mxl5007t.h" | |
13 | ||
14 | static DEFINE_MUTEX(mxl5007t_list_mutex); | |
15 | static LIST_HEAD(hybrid_tuner_instance_list); | |
16 | ||
17 | static int mxl5007t_debug; | |
18 | module_param_named(debug, mxl5007t_debug, int, 0644); | |
19 | MODULE_PARM_DESC(debug, "set debug level"); | |
20 | ||
21 | /* ------------------------------------------------------------------------- */ | |
22 | ||
23 | #define mxl_printk(kern, fmt, arg...) \ | |
24 | printk(kern "%s: " fmt "\n", __func__, ##arg) | |
25 | ||
26 | #define mxl_err(fmt, arg...) \ | |
27 | mxl_printk(KERN_ERR, "%d: " fmt, __LINE__, ##arg) | |
28 | ||
29 | #define mxl_warn(fmt, arg...) \ | |
30 | mxl_printk(KERN_WARNING, fmt, ##arg) | |
31 | ||
32 | #define mxl_info(fmt, arg...) \ | |
33 | mxl_printk(KERN_INFO, fmt, ##arg) | |
34 | ||
35 | #define mxl_debug(fmt, arg...) \ | |
36 | ({ \ | |
37 | if (mxl5007t_debug) \ | |
38 | mxl_printk(KERN_DEBUG, fmt, ##arg); \ | |
39 | }) | |
40 | ||
41 | #define mxl_fail(ret) \ | |
42 | ({ \ | |
43 | int __ret; \ | |
44 | __ret = (ret < 0); \ | |
45 | if (__ret) \ | |
46 | mxl_printk(KERN_ERR, "error %d on line %d", \ | |
47 | ret, __LINE__); \ | |
48 | __ret; \ | |
49 | }) | |
50 | ||
51 | /* ------------------------------------------------------------------------- */ | |
52 | ||
2a83e4d5 | 53 | enum mxl5007t_mode { |
7434ca43 MK |
54 | MxL_MODE_ISDBT = 0, |
55 | MxL_MODE_DVBT = 1, | |
56 | MxL_MODE_ATSC = 2, | |
57 | MxL_MODE_CABLE = 0x10, | |
2a83e4d5 MK |
58 | }; |
59 | ||
60 | enum mxl5007t_chip_version { | |
61 | MxL_UNKNOWN_ID = 0x00, | |
62 | MxL_5007_V1_F1 = 0x11, | |
63 | MxL_5007_V1_F2 = 0x12, | |
7434ca43 | 64 | MxL_5007_V4 = 0x14, |
2a83e4d5 MK |
65 | MxL_5007_V2_100_F1 = 0x21, |
66 | MxL_5007_V2_100_F2 = 0x22, | |
67 | MxL_5007_V2_200_F1 = 0x23, | |
68 | MxL_5007_V2_200_F2 = 0x24, | |
69 | }; | |
70 | ||
71 | struct reg_pair_t { | |
72 | u8 reg; | |
73 | u8 val; | |
74 | }; | |
75 | ||
76 | /* ------------------------------------------------------------------------- */ | |
77 | ||
78 | static struct reg_pair_t init_tab[] = { | |
7434ca43 MK |
79 | { 0x02, 0x06 }, |
80 | { 0x03, 0x48 }, | |
81 | { 0x05, 0x04 }, | |
82 | { 0x06, 0x10 }, | |
83 | { 0x2e, 0x15 }, /* OVERRIDE */ | |
84 | { 0x30, 0x10 }, /* OVERRIDE */ | |
85 | { 0x45, 0x58 }, /* OVERRIDE */ | |
86 | { 0x48, 0x19 }, /* OVERRIDE */ | |
87 | { 0x52, 0x03 }, /* OVERRIDE */ | |
88 | { 0x53, 0x44 }, /* OVERRIDE */ | |
89 | { 0x6a, 0x4b }, /* OVERRIDE */ | |
90 | { 0x76, 0x00 }, /* OVERRIDE */ | |
91 | { 0x78, 0x18 }, /* OVERRIDE */ | |
92 | { 0x7a, 0x17 }, /* OVERRIDE */ | |
93 | { 0x85, 0x06 }, /* OVERRIDE */ | |
94 | { 0x01, 0x01 }, /* TOP_MASTER_ENABLE */ | |
2a83e4d5 MK |
95 | { 0, 0 } |
96 | }; | |
97 | ||
98 | static struct reg_pair_t init_tab_cable[] = { | |
7434ca43 MK |
99 | { 0x02, 0x06 }, |
100 | { 0x03, 0x48 }, | |
101 | { 0x05, 0x04 }, | |
102 | { 0x06, 0x10 }, | |
103 | { 0x09, 0x3f }, | |
104 | { 0x0a, 0x3f }, | |
105 | { 0x0b, 0x3f }, | |
106 | { 0x2e, 0x15 }, /* OVERRIDE */ | |
107 | { 0x30, 0x10 }, /* OVERRIDE */ | |
108 | { 0x45, 0x58 }, /* OVERRIDE */ | |
109 | { 0x48, 0x19 }, /* OVERRIDE */ | |
110 | { 0x52, 0x03 }, /* OVERRIDE */ | |
111 | { 0x53, 0x44 }, /* OVERRIDE */ | |
112 | { 0x6a, 0x4b }, /* OVERRIDE */ | |
113 | { 0x76, 0x00 }, /* OVERRIDE */ | |
114 | { 0x78, 0x18 }, /* OVERRIDE */ | |
115 | { 0x7a, 0x17 }, /* OVERRIDE */ | |
116 | { 0x85, 0x06 }, /* OVERRIDE */ | |
117 | { 0x01, 0x01 }, /* TOP_MASTER_ENABLE */ | |
2a83e4d5 MK |
118 | { 0, 0 } |
119 | }; | |
120 | ||
121 | /* ------------------------------------------------------------------------- */ | |
122 | ||
123 | static struct reg_pair_t reg_pair_rftune[] = { | |
7434ca43 MK |
124 | { 0x0f, 0x00 }, /* abort tune */ |
125 | { 0x0c, 0x15 }, | |
126 | { 0x0d, 0x40 }, | |
127 | { 0x0e, 0x0e }, | |
128 | { 0x1f, 0x87 }, /* OVERRIDE */ | |
129 | { 0x20, 0x1f }, /* OVERRIDE */ | |
130 | { 0x21, 0x87 }, /* OVERRIDE */ | |
131 | { 0x22, 0x1f }, /* OVERRIDE */ | |
132 | { 0x80, 0x01 }, /* freq dependent */ | |
133 | { 0x0f, 0x01 }, /* start tune */ | |
2a83e4d5 MK |
134 | { 0, 0 } |
135 | }; | |
136 | ||
137 | /* ------------------------------------------------------------------------- */ | |
138 | ||
139 | struct mxl5007t_state { | |
140 | struct list_head hybrid_tuner_instance_list; | |
141 | struct tuner_i2c_props i2c_props; | |
142 | ||
143 | struct mutex lock; | |
144 | ||
145 | struct mxl5007t_config *config; | |
146 | ||
147 | enum mxl5007t_chip_version chip_id; | |
148 | ||
149 | struct reg_pair_t tab_init[ARRAY_SIZE(init_tab)]; | |
150 | struct reg_pair_t tab_init_cable[ARRAY_SIZE(init_tab_cable)]; | |
151 | struct reg_pair_t tab_rftune[ARRAY_SIZE(reg_pair_rftune)]; | |
152 | ||
d697b4ce MK |
153 | enum mxl5007t_if_freq if_freq; |
154 | ||
2a83e4d5 MK |
155 | u32 frequency; |
156 | u32 bandwidth; | |
157 | }; | |
158 | ||
159 | /* ------------------------------------------------------------------------- */ | |
160 | ||
161 | /* called by _init and _rftun to manipulate the register arrays */ | |
162 | ||
163 | static void set_reg_bits(struct reg_pair_t *reg_pair, u8 reg, u8 mask, u8 val) | |
164 | { | |
165 | unsigned int i = 0; | |
166 | ||
167 | while (reg_pair[i].reg || reg_pair[i].val) { | |
168 | if (reg_pair[i].reg == reg) { | |
169 | reg_pair[i].val &= ~mask; | |
170 | reg_pair[i].val |= val; | |
171 | } | |
172 | i++; | |
173 | ||
174 | } | |
175 | return; | |
176 | } | |
177 | ||
178 | static void copy_reg_bits(struct reg_pair_t *reg_pair1, | |
179 | struct reg_pair_t *reg_pair2) | |
180 | { | |
181 | unsigned int i, j; | |
182 | ||
183 | i = j = 0; | |
184 | ||
185 | while (reg_pair1[i].reg || reg_pair1[i].val) { | |
c95a419a | 186 | while (reg_pair2[j].reg || reg_pair2[j].val) { |
2a83e4d5 MK |
187 | if (reg_pair1[i].reg != reg_pair2[j].reg) { |
188 | j++; | |
189 | continue; | |
190 | } | |
191 | reg_pair2[j].val = reg_pair1[i].val; | |
192 | break; | |
193 | } | |
194 | i++; | |
195 | } | |
196 | return; | |
197 | } | |
198 | ||
199 | /* ------------------------------------------------------------------------- */ | |
200 | ||
201 | static void mxl5007t_set_mode_bits(struct mxl5007t_state *state, | |
202 | enum mxl5007t_mode mode, | |
203 | s32 if_diff_out_level) | |
204 | { | |
205 | switch (mode) { | |
7434ca43 MK |
206 | case MxL_MODE_ATSC: |
207 | set_reg_bits(state->tab_init, 0x06, 0x1f, 0x12); | |
2a83e4d5 | 208 | break; |
7434ca43 MK |
209 | case MxL_MODE_DVBT: |
210 | set_reg_bits(state->tab_init, 0x06, 0x1f, 0x11); | |
2a83e4d5 | 211 | break; |
7434ca43 MK |
212 | case MxL_MODE_ISDBT: |
213 | set_reg_bits(state->tab_init, 0x06, 0x1f, 0x10); | |
214 | break; | |
215 | case MxL_MODE_CABLE: | |
216 | set_reg_bits(state->tab_init_cable, 0x09, 0xff, 0xc1); | |
217 | set_reg_bits(state->tab_init_cable, 0x0a, 0xff, | |
2a83e4d5 | 218 | 8 - if_diff_out_level); |
7434ca43 | 219 | set_reg_bits(state->tab_init_cable, 0x0b, 0xff, 0x17); |
2a83e4d5 | 220 | break; |
2a83e4d5 MK |
221 | default: |
222 | mxl_fail(-EINVAL); | |
223 | } | |
224 | return; | |
225 | } | |
226 | ||
227 | static void mxl5007t_set_if_freq_bits(struct mxl5007t_state *state, | |
228 | enum mxl5007t_if_freq if_freq, | |
229 | int invert_if) | |
230 | { | |
231 | u8 val; | |
232 | ||
233 | switch (if_freq) { | |
234 | case MxL_IF_4_MHZ: | |
235 | val = 0x00; | |
236 | break; | |
237 | case MxL_IF_4_5_MHZ: | |
7434ca43 | 238 | val = 0x02; |
2a83e4d5 MK |
239 | break; |
240 | case MxL_IF_4_57_MHZ: | |
7434ca43 | 241 | val = 0x03; |
2a83e4d5 MK |
242 | break; |
243 | case MxL_IF_5_MHZ: | |
7434ca43 | 244 | val = 0x04; |
2a83e4d5 MK |
245 | break; |
246 | case MxL_IF_5_38_MHZ: | |
7434ca43 | 247 | val = 0x05; |
2a83e4d5 MK |
248 | break; |
249 | case MxL_IF_6_MHZ: | |
7434ca43 | 250 | val = 0x06; |
2a83e4d5 MK |
251 | break; |
252 | case MxL_IF_6_28_MHZ: | |
7434ca43 | 253 | val = 0x07; |
2a83e4d5 MK |
254 | break; |
255 | case MxL_IF_9_1915_MHZ: | |
7434ca43 | 256 | val = 0x08; |
2a83e4d5 MK |
257 | break; |
258 | case MxL_IF_35_25_MHZ: | |
7434ca43 | 259 | val = 0x09; |
2a83e4d5 MK |
260 | break; |
261 | case MxL_IF_36_15_MHZ: | |
7434ca43 | 262 | val = 0x0a; |
2a83e4d5 MK |
263 | break; |
264 | case MxL_IF_44_MHZ: | |
7434ca43 | 265 | val = 0x0b; |
2a83e4d5 MK |
266 | break; |
267 | default: | |
268 | mxl_fail(-EINVAL); | |
269 | return; | |
270 | } | |
7434ca43 | 271 | set_reg_bits(state->tab_init, 0x02, 0x0f, val); |
2a83e4d5 MK |
272 | |
273 | /* set inverted IF or normal IF */ | |
7434ca43 | 274 | set_reg_bits(state->tab_init, 0x02, 0x10, invert_if ? 0x10 : 0x00); |
2a83e4d5 | 275 | |
d697b4ce MK |
276 | state->if_freq = if_freq; |
277 | ||
2a83e4d5 MK |
278 | return; |
279 | } | |
280 | ||
281 | static void mxl5007t_set_xtal_freq_bits(struct mxl5007t_state *state, | |
282 | enum mxl5007t_xtal_freq xtal_freq) | |
283 | { | |
2a83e4d5 MK |
284 | switch (xtal_freq) { |
285 | case MxL_XTAL_16_MHZ: | |
7434ca43 MK |
286 | /* select xtal freq & ref freq */ |
287 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x00); | |
288 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x00); | |
2a83e4d5 MK |
289 | break; |
290 | case MxL_XTAL_20_MHZ: | |
7434ca43 MK |
291 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x10); |
292 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x01); | |
2a83e4d5 MK |
293 | break; |
294 | case MxL_XTAL_20_25_MHZ: | |
7434ca43 MK |
295 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x20); |
296 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x02); | |
2a83e4d5 MK |
297 | break; |
298 | case MxL_XTAL_20_48_MHZ: | |
7434ca43 MK |
299 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x30); |
300 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x03); | |
2a83e4d5 MK |
301 | break; |
302 | case MxL_XTAL_24_MHZ: | |
7434ca43 MK |
303 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x40); |
304 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x04); | |
2a83e4d5 MK |
305 | break; |
306 | case MxL_XTAL_25_MHZ: | |
7434ca43 MK |
307 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x50); |
308 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x05); | |
2a83e4d5 MK |
309 | break; |
310 | case MxL_XTAL_25_14_MHZ: | |
7434ca43 MK |
311 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x60); |
312 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x06); | |
2a83e4d5 MK |
313 | break; |
314 | case MxL_XTAL_27_MHZ: | |
7434ca43 MK |
315 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x70); |
316 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x07); | |
2a83e4d5 MK |
317 | break; |
318 | case MxL_XTAL_28_8_MHZ: | |
7434ca43 MK |
319 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x80); |
320 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x08); | |
2a83e4d5 MK |
321 | break; |
322 | case MxL_XTAL_32_MHZ: | |
7434ca43 MK |
323 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0x90); |
324 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x09); | |
2a83e4d5 MK |
325 | break; |
326 | case MxL_XTAL_40_MHZ: | |
7434ca43 MK |
327 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xa0); |
328 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0a); | |
2a83e4d5 MK |
329 | break; |
330 | case MxL_XTAL_44_MHZ: | |
7434ca43 MK |
331 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xb0); |
332 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0b); | |
2a83e4d5 MK |
333 | break; |
334 | case MxL_XTAL_48_MHZ: | |
7434ca43 MK |
335 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xc0); |
336 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0c); | |
2a83e4d5 MK |
337 | break; |
338 | case MxL_XTAL_49_3811_MHZ: | |
7434ca43 MK |
339 | set_reg_bits(state->tab_init, 0x03, 0xf0, 0xd0); |
340 | set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0d); | |
2a83e4d5 MK |
341 | break; |
342 | default: | |
343 | mxl_fail(-EINVAL); | |
344 | return; | |
345 | } | |
2a83e4d5 MK |
346 | |
347 | return; | |
348 | } | |
349 | ||
350 | static struct reg_pair_t *mxl5007t_calc_init_regs(struct mxl5007t_state *state, | |
351 | enum mxl5007t_mode mode) | |
352 | { | |
353 | struct mxl5007t_config *cfg = state->config; | |
354 | ||
355 | memcpy(&state->tab_init, &init_tab, sizeof(init_tab)); | |
356 | memcpy(&state->tab_init_cable, &init_tab_cable, sizeof(init_tab_cable)); | |
357 | ||
358 | mxl5007t_set_mode_bits(state, mode, cfg->if_diff_out_level); | |
359 | mxl5007t_set_if_freq_bits(state, cfg->if_freq_hz, cfg->invert_if); | |
360 | mxl5007t_set_xtal_freq_bits(state, cfg->xtal_freq_hz); | |
361 | ||
7434ca43 MK |
362 | set_reg_bits(state->tab_init, 0x03, 0x08, cfg->clk_out_enable << 3); |
363 | set_reg_bits(state->tab_init, 0x03, 0x07, cfg->clk_out_amp); | |
2a83e4d5 | 364 | |
7434ca43 | 365 | if (mode >= MxL_MODE_CABLE) { |
2a83e4d5 MK |
366 | copy_reg_bits(state->tab_init, state->tab_init_cable); |
367 | return state->tab_init_cable; | |
368 | } else | |
369 | return state->tab_init; | |
370 | } | |
371 | ||
372 | /* ------------------------------------------------------------------------- */ | |
373 | ||
374 | enum mxl5007t_bw_mhz { | |
375 | MxL_BW_6MHz = 6, | |
376 | MxL_BW_7MHz = 7, | |
377 | MxL_BW_8MHz = 8, | |
378 | }; | |
379 | ||
380 | static void mxl5007t_set_bw_bits(struct mxl5007t_state *state, | |
381 | enum mxl5007t_bw_mhz bw) | |
382 | { | |
383 | u8 val; | |
384 | ||
385 | switch (bw) { | |
386 | case MxL_BW_6MHz: | |
387 | val = 0x15; /* set DIG_MODEINDEX, DIG_MODEINDEX_A, | |
388 | * and DIG_MODEINDEX_CSF */ | |
389 | break; | |
390 | case MxL_BW_7MHz: | |
7434ca43 | 391 | val = 0x2a; |
2a83e4d5 MK |
392 | break; |
393 | case MxL_BW_8MHz: | |
394 | val = 0x3f; | |
395 | break; | |
396 | default: | |
397 | mxl_fail(-EINVAL); | |
398 | return; | |
399 | } | |
7434ca43 | 400 | set_reg_bits(state->tab_rftune, 0x0c, 0x3f, val); |
2a83e4d5 MK |
401 | |
402 | return; | |
403 | } | |
404 | ||
405 | static struct | |
406 | reg_pair_t *mxl5007t_calc_rf_tune_regs(struct mxl5007t_state *state, | |
407 | u32 rf_freq, enum mxl5007t_bw_mhz bw) | |
408 | { | |
409 | u32 dig_rf_freq = 0; | |
410 | u32 temp; | |
411 | u32 frac_divider = 1000000; | |
412 | unsigned int i; | |
413 | ||
414 | memcpy(&state->tab_rftune, ®_pair_rftune, sizeof(reg_pair_rftune)); | |
415 | ||
416 | mxl5007t_set_bw_bits(state, bw); | |
417 | ||
418 | /* Convert RF frequency into 16 bits => | |
419 | * 10 bit integer (MHz) + 6 bit fraction */ | |
420 | dig_rf_freq = rf_freq / MHz; | |
421 | ||
422 | temp = rf_freq % MHz; | |
423 | ||
424 | for (i = 0; i < 6; i++) { | |
425 | dig_rf_freq <<= 1; | |
426 | frac_divider /= 2; | |
427 | if (temp > frac_divider) { | |
428 | temp -= frac_divider; | |
429 | dig_rf_freq++; | |
430 | } | |
431 | } | |
432 | ||
433 | /* add to have shift center point by 7.8124 kHz */ | |
434 | if (temp > 7812) | |
435 | dig_rf_freq++; | |
436 | ||
7434ca43 MK |
437 | set_reg_bits(state->tab_rftune, 0x0d, 0xff, (u8) dig_rf_freq); |
438 | set_reg_bits(state->tab_rftune, 0x0e, 0xff, (u8) (dig_rf_freq >> 8)); | |
439 | ||
440 | if (rf_freq >= 333000000) | |
441 | set_reg_bits(state->tab_rftune, 0x80, 0x40, 0x40); | |
2a83e4d5 MK |
442 | |
443 | return state->tab_rftune; | |
444 | } | |
445 | ||
446 | /* ------------------------------------------------------------------------- */ | |
447 | ||
448 | static int mxl5007t_write_reg(struct mxl5007t_state *state, u8 reg, u8 val) | |
449 | { | |
450 | u8 buf[] = { reg, val }; | |
451 | struct i2c_msg msg = { .addr = state->i2c_props.addr, .flags = 0, | |
452 | .buf = buf, .len = 2 }; | |
453 | int ret; | |
454 | ||
455 | ret = i2c_transfer(state->i2c_props.adap, &msg, 1); | |
456 | if (ret != 1) { | |
457 | mxl_err("failed!"); | |
458 | return -EREMOTEIO; | |
459 | } | |
460 | return 0; | |
461 | } | |
462 | ||
463 | static int mxl5007t_write_regs(struct mxl5007t_state *state, | |
464 | struct reg_pair_t *reg_pair) | |
465 | { | |
466 | unsigned int i = 0; | |
467 | int ret = 0; | |
468 | ||
469 | while ((ret == 0) && (reg_pair[i].reg || reg_pair[i].val)) { | |
470 | ret = mxl5007t_write_reg(state, | |
471 | reg_pair[i].reg, reg_pair[i].val); | |
472 | i++; | |
473 | } | |
474 | return ret; | |
475 | } | |
476 | ||
477 | static int mxl5007t_read_reg(struct mxl5007t_state *state, u8 reg, u8 *val) | |
478 | { | |
576b849e | 479 | u8 buf[2] = { 0xfb, reg }; |
2a83e4d5 MK |
480 | struct i2c_msg msg[] = { |
481 | { .addr = state->i2c_props.addr, .flags = 0, | |
576b849e | 482 | .buf = buf, .len = 2 }, |
2a83e4d5 MK |
483 | { .addr = state->i2c_props.addr, .flags = I2C_M_RD, |
484 | .buf = val, .len = 1 }, | |
485 | }; | |
486 | int ret; | |
487 | ||
488 | ret = i2c_transfer(state->i2c_props.adap, msg, 2); | |
489 | if (ret != 2) { | |
490 | mxl_err("failed!"); | |
491 | return -EREMOTEIO; | |
492 | } | |
493 | return 0; | |
494 | } | |
495 | ||
496 | static int mxl5007t_soft_reset(struct mxl5007t_state *state) | |
497 | { | |
498 | u8 d = 0xff; | |
7434ca43 MK |
499 | struct i2c_msg msg = { |
500 | .addr = state->i2c_props.addr, .flags = 0, | |
501 | .buf = &d, .len = 1 | |
502 | }; | |
2a83e4d5 MK |
503 | int ret = i2c_transfer(state->i2c_props.adap, &msg, 1); |
504 | ||
505 | if (ret != 1) { | |
506 | mxl_err("failed!"); | |
507 | return -EREMOTEIO; | |
508 | } | |
509 | return 0; | |
510 | } | |
511 | ||
512 | static int mxl5007t_tuner_init(struct mxl5007t_state *state, | |
513 | enum mxl5007t_mode mode) | |
514 | { | |
515 | struct reg_pair_t *init_regs; | |
516 | int ret; | |
517 | ||
2a83e4d5 MK |
518 | /* calculate initialization reg array */ |
519 | init_regs = mxl5007t_calc_init_regs(state, mode); | |
520 | ||
521 | ret = mxl5007t_write_regs(state, init_regs); | |
522 | if (mxl_fail(ret)) | |
523 | goto fail; | |
524 | mdelay(1); | |
2a83e4d5 MK |
525 | fail: |
526 | return ret; | |
527 | } | |
528 | ||
529 | static int mxl5007t_tuner_rf_tune(struct mxl5007t_state *state, u32 rf_freq_hz, | |
530 | enum mxl5007t_bw_mhz bw) | |
531 | { | |
532 | struct reg_pair_t *rf_tune_regs; | |
533 | int ret; | |
534 | ||
535 | /* calculate channel change reg array */ | |
536 | rf_tune_regs = mxl5007t_calc_rf_tune_regs(state, rf_freq_hz, bw); | |
537 | ||
538 | ret = mxl5007t_write_regs(state, rf_tune_regs); | |
539 | if (mxl_fail(ret)) | |
540 | goto fail; | |
541 | msleep(3); | |
542 | fail: | |
543 | return ret; | |
544 | } | |
545 | ||
546 | /* ------------------------------------------------------------------------- */ | |
547 | ||
548 | static int mxl5007t_synth_lock_status(struct mxl5007t_state *state, | |
549 | int *rf_locked, int *ref_locked) | |
550 | { | |
551 | u8 d; | |
552 | int ret; | |
553 | ||
554 | *rf_locked = 0; | |
555 | *ref_locked = 0; | |
556 | ||
7434ca43 | 557 | ret = mxl5007t_read_reg(state, 0xd8, &d); |
2a83e4d5 MK |
558 | if (mxl_fail(ret)) |
559 | goto fail; | |
560 | ||
561 | if ((d & 0x0c) == 0x0c) | |
562 | *rf_locked = 1; | |
563 | ||
564 | if ((d & 0x03) == 0x03) | |
565 | *ref_locked = 1; | |
566 | fail: | |
567 | return ret; | |
568 | } | |
569 | ||
2a83e4d5 MK |
570 | /* ------------------------------------------------------------------------- */ |
571 | ||
572 | static int mxl5007t_get_status(struct dvb_frontend *fe, u32 *status) | |
573 | { | |
574 | struct mxl5007t_state *state = fe->tuner_priv; | |
d90958e6 MK |
575 | int rf_locked, ref_locked, ret; |
576 | ||
577 | *status = 0; | |
2a83e4d5 | 578 | |
2a83e4d5 MK |
579 | if (fe->ops.i2c_gate_ctrl) |
580 | fe->ops.i2c_gate_ctrl(fe, 1); | |
581 | ||
582 | ret = mxl5007t_synth_lock_status(state, &rf_locked, &ref_locked); | |
583 | if (mxl_fail(ret)) | |
584 | goto fail; | |
585 | mxl_debug("%s%s", rf_locked ? "rf locked " : "", | |
586 | ref_locked ? "ref locked" : ""); | |
d90958e6 MK |
587 | |
588 | if ((rf_locked) || (ref_locked)) | |
589 | *status |= TUNER_STATUS_LOCKED; | |
2a83e4d5 MK |
590 | fail: |
591 | if (fe->ops.i2c_gate_ctrl) | |
592 | fe->ops.i2c_gate_ctrl(fe, 0); | |
593 | ||
2a83e4d5 MK |
594 | return ret; |
595 | } | |
596 | ||
597 | /* ------------------------------------------------------------------------- */ | |
598 | ||
14d24d14 | 599 | static int mxl5007t_set_params(struct dvb_frontend *fe) |
2a83e4d5 | 600 | { |
e12617e6 MCC |
601 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
602 | u32 delsys = c->delivery_system; | |
2a83e4d5 MK |
603 | struct mxl5007t_state *state = fe->tuner_priv; |
604 | enum mxl5007t_bw_mhz bw; | |
605 | enum mxl5007t_mode mode; | |
606 | int ret; | |
e12617e6 | 607 | u32 freq = c->frequency; |
2a83e4d5 | 608 | |
e12617e6 MCC |
609 | switch (delsys) { |
610 | case SYS_ATSC: | |
611 | mode = MxL_MODE_ATSC; | |
612 | bw = MxL_BW_6MHz; | |
613 | break; | |
614 | case SYS_DVBC_ANNEX_B: | |
615 | mode = MxL_MODE_CABLE; | |
2a83e4d5 | 616 | bw = MxL_BW_6MHz; |
e12617e6 MCC |
617 | break; |
618 | case SYS_DVBT: | |
619 | case SYS_DVBT2: | |
620 | mode = MxL_MODE_DVBT; | |
621 | switch (c->bandwidth_hz) { | |
622 | case 6000000: | |
2a83e4d5 MK |
623 | bw = MxL_BW_6MHz; |
624 | break; | |
e12617e6 | 625 | case 7000000: |
2a83e4d5 | 626 | bw = MxL_BW_7MHz; |
9e94136d | 627 | break; |
e12617e6 | 628 | case 8000000: |
2a83e4d5 | 629 | bw = MxL_BW_8MHz; |
9e94136d | 630 | break; |
2a83e4d5 | 631 | default: |
2a83e4d5 MK |
632 | return -EINVAL; |
633 | } | |
e12617e6 MCC |
634 | break; |
635 | default: | |
2a83e4d5 MK |
636 | mxl_err("modulation type not supported!"); |
637 | return -EINVAL; | |
638 | } | |
639 | ||
2a83e4d5 MK |
640 | if (fe->ops.i2c_gate_ctrl) |
641 | fe->ops.i2c_gate_ctrl(fe, 1); | |
642 | ||
c39c1fd2 MK |
643 | mutex_lock(&state->lock); |
644 | ||
2a83e4d5 MK |
645 | ret = mxl5007t_tuner_init(state, mode); |
646 | if (mxl_fail(ret)) | |
647 | goto fail; | |
648 | ||
649 | ret = mxl5007t_tuner_rf_tune(state, freq, bw); | |
650 | if (mxl_fail(ret)) | |
651 | goto fail; | |
652 | ||
653 | state->frequency = freq; | |
c6f56e7d | 654 | state->bandwidth = c->bandwidth_hz; |
2a83e4d5 | 655 | fail: |
c39c1fd2 MK |
656 | mutex_unlock(&state->lock); |
657 | ||
2a83e4d5 MK |
658 | if (fe->ops.i2c_gate_ctrl) |
659 | fe->ops.i2c_gate_ctrl(fe, 0); | |
660 | ||
2a83e4d5 MK |
661 | return ret; |
662 | } | |
663 | ||
2a83e4d5 MK |
664 | /* ------------------------------------------------------------------------- */ |
665 | ||
666 | static int mxl5007t_init(struct dvb_frontend *fe) | |
667 | { | |
668 | struct mxl5007t_state *state = fe->tuner_priv; | |
452a53a2 | 669 | int ret; |
2a83e4d5 | 670 | |
452a53a2 MK |
671 | if (fe->ops.i2c_gate_ctrl) |
672 | fe->ops.i2c_gate_ctrl(fe, 1); | |
673 | ||
7434ca43 MK |
674 | /* wake from standby */ |
675 | ret = mxl5007t_write_reg(state, 0x01, 0x01); | |
452a53a2 | 676 | mxl_fail(ret); |
7434ca43 | 677 | |
452a53a2 MK |
678 | if (fe->ops.i2c_gate_ctrl) |
679 | fe->ops.i2c_gate_ctrl(fe, 0); | |
680 | ||
452a53a2 | 681 | return ret; |
2a83e4d5 MK |
682 | } |
683 | ||
684 | static int mxl5007t_sleep(struct dvb_frontend *fe) | |
685 | { | |
686 | struct mxl5007t_state *state = fe->tuner_priv; | |
452a53a2 | 687 | int ret; |
2a83e4d5 | 688 | |
452a53a2 MK |
689 | if (fe->ops.i2c_gate_ctrl) |
690 | fe->ops.i2c_gate_ctrl(fe, 1); | |
691 | ||
7434ca43 MK |
692 | /* enter standby mode */ |
693 | ret = mxl5007t_write_reg(state, 0x01, 0x00); | |
452a53a2 | 694 | mxl_fail(ret); |
7434ca43 MK |
695 | ret = mxl5007t_write_reg(state, 0x0f, 0x00); |
696 | mxl_fail(ret); | |
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 | /* ------------------------------------------------------------------------- */ | |
705 | ||
706 | static int mxl5007t_get_frequency(struct dvb_frontend *fe, u32 *frequency) | |
707 | { | |
708 | struct mxl5007t_state *state = fe->tuner_priv; | |
709 | *frequency = state->frequency; | |
710 | return 0; | |
711 | } | |
712 | ||
713 | static int mxl5007t_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) | |
714 | { | |
715 | struct mxl5007t_state *state = fe->tuner_priv; | |
716 | *bandwidth = state->bandwidth; | |
717 | return 0; | |
718 | } | |
719 | ||
d697b4ce MK |
720 | static int mxl5007t_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) |
721 | { | |
722 | struct mxl5007t_state *state = fe->tuner_priv; | |
723 | ||
724 | *frequency = 0; | |
725 | ||
726 | switch (state->if_freq) { | |
727 | case MxL_IF_4_MHZ: | |
728 | *frequency = 4000000; | |
729 | break; | |
730 | case MxL_IF_4_5_MHZ: | |
731 | *frequency = 4500000; | |
732 | break; | |
733 | case MxL_IF_4_57_MHZ: | |
734 | *frequency = 4570000; | |
735 | break; | |
736 | case MxL_IF_5_MHZ: | |
737 | *frequency = 5000000; | |
738 | break; | |
739 | case MxL_IF_5_38_MHZ: | |
740 | *frequency = 5380000; | |
741 | break; | |
742 | case MxL_IF_6_MHZ: | |
743 | *frequency = 6000000; | |
744 | break; | |
745 | case MxL_IF_6_28_MHZ: | |
746 | *frequency = 6280000; | |
747 | break; | |
748 | case MxL_IF_9_1915_MHZ: | |
749 | *frequency = 9191500; | |
750 | break; | |
751 | case MxL_IF_35_25_MHZ: | |
752 | *frequency = 35250000; | |
753 | break; | |
754 | case MxL_IF_36_15_MHZ: | |
755 | *frequency = 36150000; | |
756 | break; | |
757 | case MxL_IF_44_MHZ: | |
758 | *frequency = 44000000; | |
759 | break; | |
760 | } | |
761 | return 0; | |
762 | } | |
763 | ||
194ced7a | 764 | static void mxl5007t_release(struct dvb_frontend *fe) |
2a83e4d5 MK |
765 | { |
766 | struct mxl5007t_state *state = fe->tuner_priv; | |
767 | ||
768 | mutex_lock(&mxl5007t_list_mutex); | |
769 | ||
770 | if (state) | |
771 | hybrid_tuner_release_state(state); | |
772 | ||
773 | mutex_unlock(&mxl5007t_list_mutex); | |
774 | ||
775 | fe->tuner_priv = NULL; | |
2a83e4d5 MK |
776 | } |
777 | ||
778 | /* ------------------------------------------------------------------------- */ | |
779 | ||
96105144 | 780 | static const struct dvb_tuner_ops mxl5007t_tuner_ops = { |
2a83e4d5 MK |
781 | .info = { |
782 | .name = "MaxLinear MxL5007T", | |
783 | }, | |
784 | .init = mxl5007t_init, | |
785 | .sleep = mxl5007t_sleep, | |
786 | .set_params = mxl5007t_set_params, | |
2a83e4d5 MK |
787 | .get_status = mxl5007t_get_status, |
788 | .get_frequency = mxl5007t_get_frequency, | |
789 | .get_bandwidth = mxl5007t_get_bandwidth, | |
790 | .release = mxl5007t_release, | |
d697b4ce | 791 | .get_if_frequency = mxl5007t_get_if_frequency, |
2a83e4d5 MK |
792 | }; |
793 | ||
794 | static int mxl5007t_get_chip_id(struct mxl5007t_state *state) | |
795 | { | |
796 | char *name; | |
797 | int ret; | |
798 | u8 id; | |
799 | ||
7434ca43 | 800 | ret = mxl5007t_read_reg(state, 0xd9, &id); |
2a83e4d5 MK |
801 | if (mxl_fail(ret)) |
802 | goto fail; | |
803 | ||
804 | switch (id) { | |
805 | case MxL_5007_V1_F1: | |
806 | name = "MxL5007.v1.f1"; | |
807 | break; | |
808 | case MxL_5007_V1_F2: | |
809 | name = "MxL5007.v1.f2"; | |
810 | break; | |
811 | case MxL_5007_V2_100_F1: | |
812 | name = "MxL5007.v2.100.f1"; | |
813 | break; | |
814 | case MxL_5007_V2_100_F2: | |
815 | name = "MxL5007.v2.100.f2"; | |
816 | break; | |
817 | case MxL_5007_V2_200_F1: | |
818 | name = "MxL5007.v2.200.f1"; | |
819 | break; | |
820 | case MxL_5007_V2_200_F2: | |
821 | name = "MxL5007.v2.200.f2"; | |
822 | break; | |
7434ca43 MK |
823 | case MxL_5007_V4: |
824 | name = "MxL5007T.v4"; | |
825 | break; | |
2a83e4d5 MK |
826 | default: |
827 | name = "MxL5007T"; | |
d202515b | 828 | printk(KERN_WARNING "%s: unknown rev (%02x)\n", __func__, id); |
2a83e4d5 MK |
829 | id = MxL_UNKNOWN_ID; |
830 | } | |
831 | state->chip_id = id; | |
832 | mxl_info("%s detected @ %d-%04x", name, | |
833 | i2c_adapter_id(state->i2c_props.adap), | |
834 | state->i2c_props.addr); | |
835 | return 0; | |
836 | fail: | |
837 | mxl_warn("unable to identify device @ %d-%04x", | |
838 | i2c_adapter_id(state->i2c_props.adap), | |
839 | state->i2c_props.addr); | |
840 | ||
841 | state->chip_id = MxL_UNKNOWN_ID; | |
842 | return ret; | |
843 | } | |
844 | ||
845 | struct dvb_frontend *mxl5007t_attach(struct dvb_frontend *fe, | |
846 | struct i2c_adapter *i2c, u8 addr, | |
847 | struct mxl5007t_config *cfg) | |
848 | { | |
849 | struct mxl5007t_state *state = NULL; | |
850 | int instance, ret; | |
851 | ||
852 | mutex_lock(&mxl5007t_list_mutex); | |
853 | instance = hybrid_tuner_request_state(struct mxl5007t_state, state, | |
854 | hybrid_tuner_instance_list, | |
3d0081dd | 855 | i2c, addr, "mxl5007t"); |
2a83e4d5 MK |
856 | switch (instance) { |
857 | case 0: | |
858 | goto fail; | |
2a83e4d5 MK |
859 | case 1: |
860 | /* new tuner instance */ | |
861 | state->config = cfg; | |
862 | ||
863 | mutex_init(&state->lock); | |
864 | ||
2a83e4d5 MK |
865 | if (fe->ops.i2c_gate_ctrl) |
866 | fe->ops.i2c_gate_ctrl(fe, 1); | |
867 | ||
868 | ret = mxl5007t_get_chip_id(state); | |
869 | ||
870 | if (fe->ops.i2c_gate_ctrl) | |
871 | fe->ops.i2c_gate_ctrl(fe, 0); | |
872 | ||
2a83e4d5 MK |
873 | /* check return value of mxl5007t_get_chip_id */ |
874 | if (mxl_fail(ret)) | |
875 | goto fail; | |
876 | break; | |
877 | default: | |
878 | /* existing tuner instance */ | |
879 | break; | |
880 | } | |
fe4860af JAR |
881 | |
882 | if (fe->ops.i2c_gate_ctrl) | |
883 | fe->ops.i2c_gate_ctrl(fe, 1); | |
884 | ||
885 | ret = mxl5007t_soft_reset(state); | |
886 | ||
02f9cf96 JAR |
887 | if (fe->ops.i2c_gate_ctrl) |
888 | fe->ops.i2c_gate_ctrl(fe, 0); | |
889 | ||
890 | if (mxl_fail(ret)) | |
891 | goto fail; | |
892 | ||
893 | if (fe->ops.i2c_gate_ctrl) | |
894 | fe->ops.i2c_gate_ctrl(fe, 1); | |
895 | ||
896 | ret = mxl5007t_write_reg(state, 0x04, | |
897 | state->config->loop_thru_enable); | |
898 | ||
fe4860af JAR |
899 | if (fe->ops.i2c_gate_ctrl) |
900 | fe->ops.i2c_gate_ctrl(fe, 0); | |
901 | ||
902 | if (mxl_fail(ret)) | |
903 | goto fail; | |
904 | ||
2a83e4d5 | 905 | fe->tuner_priv = state; |
fe4860af | 906 | |
2a83e4d5 MK |
907 | mutex_unlock(&mxl5007t_list_mutex); |
908 | ||
909 | memcpy(&fe->ops.tuner_ops, &mxl5007t_tuner_ops, | |
910 | sizeof(struct dvb_tuner_ops)); | |
911 | ||
912 | return fe; | |
913 | fail: | |
914 | mutex_unlock(&mxl5007t_list_mutex); | |
915 | ||
916 | mxl5007t_release(fe); | |
917 | return NULL; | |
918 | } | |
919 | EXPORT_SYMBOL_GPL(mxl5007t_attach); | |
920 | MODULE_DESCRIPTION("MaxLinear MxL5007T Silicon IC tuner driver"); | |
921 | MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>"); | |
922 | MODULE_LICENSE("GPL"); | |
7434ca43 | 923 | MODULE_VERSION("0.2"); |