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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
14static DEFINE_MUTEX(mxl5007t_list_mutex);
15static LIST_HEAD(hybrid_tuner_instance_list);
16
17static int mxl5007t_debug;
18module_param_named(debug, mxl5007t_debug, int, 0644);
19MODULE_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
53enum mxl5007t_mode {
54 MxL_MODE_ISDBT = 0,
55 MxL_MODE_DVBT = 1,
56 MxL_MODE_ATSC = 2,
57 MxL_MODE_CABLE = 0x10,
58};
59
60enum mxl5007t_chip_version {
61 MxL_UNKNOWN_ID = 0x00,
62 MxL_5007_V1_F1 = 0x11,
63 MxL_5007_V1_F2 = 0x12,
64 MxL_5007_V4 = 0x14,
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
71struct reg_pair_t {
72 u8 reg;
73 u8 val;
74};
75
76
77
78static struct reg_pair_t init_tab[] = {
79 { 0x02, 0x06 },
80 { 0x03, 0x48 },
81 { 0x05, 0x04 },
82 { 0x06, 0x10 },
83 { 0x2e, 0x15 },
84 { 0x30, 0x10 },
85 { 0x45, 0x58 },
86 { 0x48, 0x19 },
87 { 0x52, 0x03 },
88 { 0x53, 0x44 },
89 { 0x6a, 0x4b },
90 { 0x76, 0x00 },
91 { 0x78, 0x18 },
92 { 0x7a, 0x17 },
93 { 0x85, 0x06 },
94 { 0x01, 0x01 },
95 { 0, 0 }
96};
97
98static struct reg_pair_t init_tab_cable[] = {
99 { 0x02, 0x06 },
100 { 0x03, 0x48 },
101 { 0x05, 0x04 },
102 { 0x06, 0x10 },
103 { 0x09, 0x3f },
104 { 0x0a, 0x3f },
105 { 0x0b, 0x3f },
106 { 0x2e, 0x15 },
107 { 0x30, 0x10 },
108 { 0x45, 0x58 },
109 { 0x48, 0x19 },
110 { 0x52, 0x03 },
111 { 0x53, 0x44 },
112 { 0x6a, 0x4b },
113 { 0x76, 0x00 },
114 { 0x78, 0x18 },
115 { 0x7a, 0x17 },
116 { 0x85, 0x06 },
117 { 0x01, 0x01 },
118 { 0, 0 }
119};
120
121
122
123static struct reg_pair_t reg_pair_rftune[] = {
124 { 0x0f, 0x00 },
125 { 0x0c, 0x15 },
126 { 0x0d, 0x40 },
127 { 0x0e, 0x0e },
128 { 0x1f, 0x87 },
129 { 0x20, 0x1f },
130 { 0x21, 0x87 },
131 { 0x22, 0x1f },
132 { 0x80, 0x01 },
133 { 0x0f, 0x01 },
134 { 0, 0 }
135};
136
137
138
139struct 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
153 enum mxl5007t_if_freq if_freq;
154
155 u32 frequency;
156 u32 bandwidth;
157};
158
159
160
161
162
163static 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
178static 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) {
186 while (reg_pair2[j].reg || reg_pair2[j].val) {
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
201static void mxl5007t_set_mode_bits(struct mxl5007t_state *state,
202 enum mxl5007t_mode mode,
203 s32 if_diff_out_level)
204{
205 switch (mode) {
206 case MxL_MODE_ATSC:
207 set_reg_bits(state->tab_init, 0x06, 0x1f, 0x12);
208 break;
209 case MxL_MODE_DVBT:
210 set_reg_bits(state->tab_init, 0x06, 0x1f, 0x11);
211 break;
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,
218 8 - if_diff_out_level);
219 set_reg_bits(state->tab_init_cable, 0x0b, 0xff, 0x17);
220 break;
221 default:
222 mxl_fail(-EINVAL);
223 }
224 return;
225}
226
227static 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:
238 val = 0x02;
239 break;
240 case MxL_IF_4_57_MHZ:
241 val = 0x03;
242 break;
243 case MxL_IF_5_MHZ:
244 val = 0x04;
245 break;
246 case MxL_IF_5_38_MHZ:
247 val = 0x05;
248 break;
249 case MxL_IF_6_MHZ:
250 val = 0x06;
251 break;
252 case MxL_IF_6_28_MHZ:
253 val = 0x07;
254 break;
255 case MxL_IF_9_1915_MHZ:
256 val = 0x08;
257 break;
258 case MxL_IF_35_25_MHZ:
259 val = 0x09;
260 break;
261 case MxL_IF_36_15_MHZ:
262 val = 0x0a;
263 break;
264 case MxL_IF_44_MHZ:
265 val = 0x0b;
266 break;
267 default:
268 mxl_fail(-EINVAL);
269 return;
270 }
271 set_reg_bits(state->tab_init, 0x02, 0x0f, val);
272
273
274 set_reg_bits(state->tab_init, 0x02, 0x10, invert_if ? 0x10 : 0x00);
275
276 state->if_freq = if_freq;
277
278 return;
279}
280
281static void mxl5007t_set_xtal_freq_bits(struct mxl5007t_state *state,
282 enum mxl5007t_xtal_freq xtal_freq)
283{
284 switch (xtal_freq) {
285 case MxL_XTAL_16_MHZ:
286
287 set_reg_bits(state->tab_init, 0x03, 0xf0, 0x00);
288 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x00);
289 break;
290 case MxL_XTAL_20_MHZ:
291 set_reg_bits(state->tab_init, 0x03, 0xf0, 0x10);
292 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x01);
293 break;
294 case MxL_XTAL_20_25_MHZ:
295 set_reg_bits(state->tab_init, 0x03, 0xf0, 0x20);
296 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x02);
297 break;
298 case MxL_XTAL_20_48_MHZ:
299 set_reg_bits(state->tab_init, 0x03, 0xf0, 0x30);
300 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x03);
301 break;
302 case MxL_XTAL_24_MHZ:
303 set_reg_bits(state->tab_init, 0x03, 0xf0, 0x40);
304 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x04);
305 break;
306 case MxL_XTAL_25_MHZ:
307 set_reg_bits(state->tab_init, 0x03, 0xf0, 0x50);
308 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x05);
309 break;
310 case MxL_XTAL_25_14_MHZ:
311 set_reg_bits(state->tab_init, 0x03, 0xf0, 0x60);
312 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x06);
313 break;
314 case MxL_XTAL_27_MHZ:
315 set_reg_bits(state->tab_init, 0x03, 0xf0, 0x70);
316 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x07);
317 break;
318 case MxL_XTAL_28_8_MHZ:
319 set_reg_bits(state->tab_init, 0x03, 0xf0, 0x80);
320 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x08);
321 break;
322 case MxL_XTAL_32_MHZ:
323 set_reg_bits(state->tab_init, 0x03, 0xf0, 0x90);
324 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x09);
325 break;
326 case MxL_XTAL_40_MHZ:
327 set_reg_bits(state->tab_init, 0x03, 0xf0, 0xa0);
328 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0a);
329 break;
330 case MxL_XTAL_44_MHZ:
331 set_reg_bits(state->tab_init, 0x03, 0xf0, 0xb0);
332 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0b);
333 break;
334 case MxL_XTAL_48_MHZ:
335 set_reg_bits(state->tab_init, 0x03, 0xf0, 0xc0);
336 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0c);
337 break;
338 case MxL_XTAL_49_3811_MHZ:
339 set_reg_bits(state->tab_init, 0x03, 0xf0, 0xd0);
340 set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0d);
341 break;
342 default:
343 mxl_fail(-EINVAL);
344 return;
345 }
346
347 return;
348}
349
350static 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
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);
364
365 if (mode >= MxL_MODE_CABLE) {
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
374enum mxl5007t_bw_mhz {
375 MxL_BW_6MHz = 6,
376 MxL_BW_7MHz = 7,
377 MxL_BW_8MHz = 8,
378};
379
380static 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;
388
389 break;
390 case MxL_BW_7MHz:
391 val = 0x2a;
392 break;
393 case MxL_BW_8MHz:
394 val = 0x3f;
395 break;
396 default:
397 mxl_fail(-EINVAL);
398 return;
399 }
400 set_reg_bits(state->tab_rftune, 0x0c, 0x3f, val);
401
402 return;
403}
404
405static struct
406reg_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
419
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
434 if (temp > 7812)
435 dig_rf_freq++;
436
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);
442
443 return state->tab_rftune;
444}
445
446
447
448static 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
463static 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
477static int mxl5007t_read_reg(struct mxl5007t_state *state, u8 reg, u8 *val)
478{
479 u8 buf[2] = { 0xfb, reg };
480 struct i2c_msg msg[] = {
481 { .addr = state->i2c_props.addr, .flags = 0,
482 .buf = buf, .len = 2 },
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
496static int mxl5007t_soft_reset(struct mxl5007t_state *state)
497{
498 u8 d = 0xff;
499 struct i2c_msg msg = {
500 .addr = state->i2c_props.addr, .flags = 0,
501 .buf = &d, .len = 1
502 };
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
512static 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
518
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);
525fail:
526 return ret;
527}
528
529static 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
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);
542fail:
543 return ret;
544}
545
546
547
548static 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
557 ret = mxl5007t_read_reg(state, 0xd8, &d);
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;
566fail:
567 return ret;
568}
569
570
571
572static int mxl5007t_get_status(struct dvb_frontend *fe, u32 *status)
573{
574 struct mxl5007t_state *state = fe->tuner_priv;
575 int rf_locked, ref_locked, ret;
576
577 *status = 0;
578
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" : "");
587
588 if ((rf_locked) || (ref_locked))
589 *status |= TUNER_STATUS_LOCKED;
590fail:
591 if (fe->ops.i2c_gate_ctrl)
592 fe->ops.i2c_gate_ctrl(fe, 0);
593
594 return ret;
595}
596
597
598
599static int mxl5007t_set_params(struct dvb_frontend *fe)
600{
601 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
602 u32 delsys = c->delivery_system;
603 struct mxl5007t_state *state = fe->tuner_priv;
604 enum mxl5007t_bw_mhz bw;
605 enum mxl5007t_mode mode;
606 int ret;
607 u32 freq = c->frequency;
608
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;
616 bw = MxL_BW_6MHz;
617 break;
618 case SYS_DVBT:
619 case SYS_DVBT2:
620 mode = MxL_MODE_DVBT;
621 switch (c->bandwidth_hz) {
622 case 6000000:
623 bw = MxL_BW_6MHz;
624 break;
625 case 7000000:
626 bw = MxL_BW_7MHz;
627 break;
628 case 8000000:
629 bw = MxL_BW_8MHz;
630 break;
631 default:
632 return -EINVAL;
633 }
634 break;
635 default:
636 mxl_err("modulation type not supported!");
637 return -EINVAL;
638 }
639
640 if (fe->ops.i2c_gate_ctrl)
641 fe->ops.i2c_gate_ctrl(fe, 1);
642
643 mutex_lock(&state->lock);
644
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;
654 state->bandwidth = c->bandwidth_hz;
655fail:
656 mutex_unlock(&state->lock);
657
658 if (fe->ops.i2c_gate_ctrl)
659 fe->ops.i2c_gate_ctrl(fe, 0);
660
661 return ret;
662}
663
664
665
666static int mxl5007t_init(struct dvb_frontend *fe)
667{
668 struct mxl5007t_state *state = fe->tuner_priv;
669 int ret;
670
671 if (fe->ops.i2c_gate_ctrl)
672 fe->ops.i2c_gate_ctrl(fe, 1);
673
674
675 ret = mxl5007t_write_reg(state, 0x01, 0x01);
676 mxl_fail(ret);
677
678 if (fe->ops.i2c_gate_ctrl)
679 fe->ops.i2c_gate_ctrl(fe, 0);
680
681 return ret;
682}
683
684static int mxl5007t_sleep(struct dvb_frontend *fe)
685{
686 struct mxl5007t_state *state = fe->tuner_priv;
687 int ret;
688
689 if (fe->ops.i2c_gate_ctrl)
690 fe->ops.i2c_gate_ctrl(fe, 1);
691
692
693 ret = mxl5007t_write_reg(state, 0x01, 0x00);
694 mxl_fail(ret);
695 ret = mxl5007t_write_reg(state, 0x0f, 0x00);
696 mxl_fail(ret);
697
698 if (fe->ops.i2c_gate_ctrl)
699 fe->ops.i2c_gate_ctrl(fe, 0);
700
701 return ret;
702}
703
704
705
706static 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
713static 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
720static 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
764static void mxl5007t_release(struct dvb_frontend *fe)
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;
776}
777
778
779
780static const struct dvb_tuner_ops mxl5007t_tuner_ops = {
781 .info = {
782 .name = "MaxLinear MxL5007T",
783 },
784 .init = mxl5007t_init,
785 .sleep = mxl5007t_sleep,
786 .set_params = mxl5007t_set_params,
787 .get_status = mxl5007t_get_status,
788 .get_frequency = mxl5007t_get_frequency,
789 .get_bandwidth = mxl5007t_get_bandwidth,
790 .release = mxl5007t_release,
791 .get_if_frequency = mxl5007t_get_if_frequency,
792};
793
794static int mxl5007t_get_chip_id(struct mxl5007t_state *state)
795{
796 char *name;
797 int ret;
798 u8 id;
799
800 ret = mxl5007t_read_reg(state, 0xd9, &id);
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;
823 case MxL_5007_V4:
824 name = "MxL5007T.v4";
825 break;
826 default:
827 name = "MxL5007T";
828 printk(KERN_WARNING "%s: unknown rev (%02x)\n", __func__, id);
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;
836fail:
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
845struct 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,
855 i2c, addr, "mxl5007t");
856 switch (instance) {
857 case 0:
858 goto fail;
859 case 1:
860
861 state->config = cfg;
862
863 mutex_init(&state->lock);
864
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
873
874 if (mxl_fail(ret))
875 goto fail;
876 break;
877 default:
878
879 break;
880 }
881
882 if (fe->ops.i2c_gate_ctrl)
883 fe->ops.i2c_gate_ctrl(fe, 1);
884
885 ret = mxl5007t_soft_reset(state);
886
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
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
905 fe->tuner_priv = state;
906
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;
913fail:
914 mutex_unlock(&mxl5007t_list_mutex);
915
916 mxl5007t_release(fe);
917 return NULL;
918}
919EXPORT_SYMBOL_GPL(mxl5007t_attach);
920MODULE_DESCRIPTION("MaxLinear MxL5007T Silicon IC tuner driver");
921MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
922MODULE_LICENSE("GPL");
923MODULE_VERSION("0.2");
924
