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01373a5c PB |
1 | /* |
2 | * Linux-DVB Driver for DiBcom's DiB0070 base-band RF Tuner. | |
3 | * | |
7e5ce651 | 4 | * Copyright (C) 2005-9 DiBcom (http://www.dibcom.fr/) |
01373a5c PB |
5 | * |
6 | * This program is free software; you can redistribute it and/or | |
7e5ce651 PB |
7 | * modify it under the terms of the GNU General Public License as |
8 | * published by the Free Software Foundation; either version 2 of the | |
9 | * License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | * | |
21 | * | |
22 | * This code is more or less generated from another driver, please | |
23 | * excuse some codingstyle oddities. | |
24 | * | |
01373a5c | 25 | */ |
7e5ce651 | 26 | |
01373a5c | 27 | #include <linux/kernel.h> |
5a0e3ad6 | 28 | #include <linux/slab.h> |
01373a5c | 29 | #include <linux/i2c.h> |
79fcce32 | 30 | #include <linux/mutex.h> |
01373a5c PB |
31 | |
32 | #include "dvb_frontend.h" | |
33 | ||
34 | #include "dib0070.h" | |
35 | #include "dibx000_common.h" | |
36 | ||
37 | static int debug; | |
38 | module_param(debug, int, 0644); | |
39 | MODULE_PARM_DESC(debug, "turn on debugging (default: 0)"); | |
40 | ||
7e5ce651 PB |
41 | #define dprintk(args...) do { \ |
42 | if (debug) { \ | |
43 | printk(KERN_DEBUG "DiB0070: "); \ | |
44 | printk(args); \ | |
45 | printk("\n"); \ | |
46 | } \ | |
47 | } while (0) | |
01373a5c PB |
48 | |
49 | #define DIB0070_P1D 0x00 | |
50 | #define DIB0070_P1F 0x01 | |
51 | #define DIB0070_P1G 0x03 | |
52 | #define DIB0070S_P1A 0x02 | |
53 | ||
54 | struct dib0070_state { | |
55 | struct i2c_adapter *i2c; | |
56 | struct dvb_frontend *fe; | |
57 | const struct dib0070_config *cfg; | |
58 | u16 wbd_ff_offset; | |
59 | u8 revision; | |
7e5ce651 | 60 | |
03245a5e OG |
61 | enum frontend_tune_state tune_state; |
62 | u32 current_rf; | |
7e5ce651 | 63 | |
03245a5e | 64 | /* for the captrim binary search */ |
7e5ce651 PB |
65 | s8 step; |
66 | u16 adc_diff; | |
67 | ||
68 | s8 captrim; | |
69 | s8 fcaptrim; | |
70 | u16 lo4; | |
71 | ||
72 | const struct dib0070_tuning *current_tune_table_index; | |
73 | const struct dib0070_lna_match *lna_match; | |
74 | ||
03245a5e | 75 | u8 wbd_gain_current; |
7e5ce651 | 76 | u16 wbd_offset_3_3[2]; |
5a0deeed OG |
77 | |
78 | /* for the I2C transfer */ | |
79 | struct i2c_msg msg[2]; | |
80 | u8 i2c_write_buffer[3]; | |
81 | u8 i2c_read_buffer[2]; | |
79fcce32 | 82 | struct mutex i2c_buffer_lock; |
01373a5c PB |
83 | }; |
84 | ||
79fcce32 | 85 | static u16 dib0070_read_reg(struct dib0070_state *state, u8 reg) |
01373a5c | 86 | { |
79fcce32 PB |
87 | u16 ret; |
88 | ||
89 | if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) { | |
90 | dprintk("could not acquire lock"); | |
91 | return 0; | |
92 | } | |
93 | ||
5a0deeed OG |
94 | state->i2c_write_buffer[0] = reg; |
95 | ||
96 | memset(state->msg, 0, 2 * sizeof(struct i2c_msg)); | |
97 | state->msg[0].addr = state->cfg->i2c_address; | |
98 | state->msg[0].flags = 0; | |
99 | state->msg[0].buf = state->i2c_write_buffer; | |
100 | state->msg[0].len = 1; | |
101 | state->msg[1].addr = state->cfg->i2c_address; | |
102 | state->msg[1].flags = I2C_M_RD; | |
103 | state->msg[1].buf = state->i2c_read_buffer; | |
104 | state->msg[1].len = 2; | |
105 | ||
106 | if (i2c_transfer(state->i2c, state->msg, 2) != 2) { | |
01373a5c | 107 | printk(KERN_WARNING "DiB0070 I2C read failed\n"); |
79fcce32 PB |
108 | ret = 0; |
109 | } else | |
110 | ret = (state->i2c_read_buffer[0] << 8) | |
111 | | state->i2c_read_buffer[1]; | |
112 | ||
113 | mutex_unlock(&state->i2c_buffer_lock); | |
114 | return ret; | |
01373a5c PB |
115 | } |
116 | ||
117 | static int dib0070_write_reg(struct dib0070_state *state, u8 reg, u16 val) | |
118 | { | |
79fcce32 PB |
119 | int ret; |
120 | ||
121 | if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) { | |
122 | dprintk("could not acquire lock"); | |
123 | return -EINVAL; | |
124 | } | |
5a0deeed OG |
125 | state->i2c_write_buffer[0] = reg; |
126 | state->i2c_write_buffer[1] = val >> 8; | |
127 | state->i2c_write_buffer[2] = val & 0xff; | |
128 | ||
129 | memset(state->msg, 0, sizeof(struct i2c_msg)); | |
130 | state->msg[0].addr = state->cfg->i2c_address; | |
131 | state->msg[0].flags = 0; | |
132 | state->msg[0].buf = state->i2c_write_buffer; | |
133 | state->msg[0].len = 3; | |
134 | ||
135 | if (i2c_transfer(state->i2c, state->msg, 1) != 1) { | |
01373a5c | 136 | printk(KERN_WARNING "DiB0070 I2C write failed\n"); |
79fcce32 PB |
137 | ret = -EREMOTEIO; |
138 | } else | |
139 | ret = 0; | |
140 | ||
141 | mutex_unlock(&state->i2c_buffer_lock); | |
142 | return ret; | |
01373a5c PB |
143 | } |
144 | ||
7e5ce651 PB |
145 | #define HARD_RESET(state) do { \ |
146 | state->cfg->sleep(state->fe, 0); \ | |
147 | if (state->cfg->reset) { \ | |
148 | state->cfg->reset(state->fe,1); msleep(10); \ | |
149 | state->cfg->reset(state->fe,0); msleep(10); \ | |
150 | } \ | |
151 | } while (0) | |
01373a5c | 152 | |
c79c9fb3 | 153 | static int dib0070_set_bandwidth(struct dvb_frontend *fe) |
01373a5c | 154 | { |
03245a5e OG |
155 | struct dib0070_state *state = fe->tuner_priv; |
156 | u16 tmp = dib0070_read_reg(state, 0x02) & 0x3fff; | |
157 | ||
158 | if (state->fe->dtv_property_cache.bandwidth_hz/1000 > 7000) | |
159 | tmp |= (0 << 14); | |
160 | else if (state->fe->dtv_property_cache.bandwidth_hz/1000 > 6000) | |
161 | tmp |= (1 << 14); | |
162 | else if (state->fe->dtv_property_cache.bandwidth_hz/1000 > 5000) | |
163 | tmp |= (2 << 14); | |
164 | else | |
165 | tmp |= (3 << 14); | |
166 | ||
167 | dib0070_write_reg(state, 0x02, tmp); | |
168 | ||
169 | /* sharpen the BB filter in ISDB-T to have higher immunity to adjacent channels */ | |
170 | if (state->fe->dtv_property_cache.delivery_system == SYS_ISDBT) { | |
171 | u16 value = dib0070_read_reg(state, 0x17); | |
172 | ||
173 | dib0070_write_reg(state, 0x17, value & 0xfffc); | |
174 | tmp = dib0070_read_reg(state, 0x01) & 0x01ff; | |
175 | dib0070_write_reg(state, 0x01, tmp | (60 << 9)); | |
176 | ||
177 | dib0070_write_reg(state, 0x17, value); | |
178 | } | |
01373a5c PB |
179 | return 0; |
180 | } | |
181 | ||
2a6a30e0 | 182 | static int dib0070_captrim(struct dib0070_state *state, enum frontend_tune_state *tune_state) |
01373a5c | 183 | { |
7e5ce651 PB |
184 | int8_t step_sign; |
185 | u16 adc; | |
186 | int ret = 0; | |
01373a5c | 187 | |
7e5ce651 | 188 | if (*tune_state == CT_TUNER_STEP_0) { |
01373a5c | 189 | |
2a6a30e0 | 190 | dib0070_write_reg(state, 0x0f, 0xed10); |
03245a5e | 191 | dib0070_write_reg(state, 0x17, 0x0034); |
01373a5c | 192 | |
2a6a30e0 PB |
193 | dib0070_write_reg(state, 0x18, 0x0032); |
194 | state->step = state->captrim = state->fcaptrim = 64; | |
195 | state->adc_diff = 3000; | |
7e5ce651 | 196 | ret = 20; |
01373a5c | 197 | |
03245a5e | 198 | *tune_state = CT_TUNER_STEP_1; |
7e5ce651 | 199 | } else if (*tune_state == CT_TUNER_STEP_1) { |
2a6a30e0 PB |
200 | state->step /= 2; |
201 | dib0070_write_reg(state, 0x14, state->lo4 | state->captrim); | |
7e5ce651 | 202 | ret = 15; |
01373a5c | 203 | |
7e5ce651 PB |
204 | *tune_state = CT_TUNER_STEP_2; |
205 | } else if (*tune_state == CT_TUNER_STEP_2) { | |
01373a5c | 206 | |
2a6a30e0 | 207 | adc = dib0070_read_reg(state, 0x19); |
01373a5c | 208 | |
9c783036 | 209 | dprintk("CAPTRIM=%hd; ADC = %hd (ADC) & %dmV", state->captrim, adc, (u32) adc*(u32)1800/(u32)1024); |
01373a5c PB |
210 | |
211 | if (adc >= 400) { | |
212 | adc -= 400; | |
213 | step_sign = -1; | |
214 | } else { | |
215 | adc = 400 - adc; | |
216 | step_sign = 1; | |
217 | } | |
218 | ||
2a6a30e0 | 219 | if (adc < state->adc_diff) { |
9c783036 | 220 | dprintk("CAPTRIM=%hd is closer to target (%hd/%hd)", state->captrim, adc, state->adc_diff); |
2a6a30e0 PB |
221 | state->adc_diff = adc; |
222 | state->fcaptrim = state->captrim; | |
01373a5c | 223 | |
03245a5e OG |
224 | |
225 | ||
01373a5c | 226 | } |
2a6a30e0 | 227 | state->captrim += (step_sign * state->step); |
7e5ce651 | 228 | |
2a6a30e0 | 229 | if (state->step >= 1) |
7e5ce651 PB |
230 | *tune_state = CT_TUNER_STEP_1; |
231 | else | |
232 | *tune_state = CT_TUNER_STEP_3; | |
233 | ||
234 | } else if (*tune_state == CT_TUNER_STEP_3) { | |
2a6a30e0 PB |
235 | dib0070_write_reg(state, 0x14, state->lo4 | state->fcaptrim); |
236 | dib0070_write_reg(state, 0x18, 0x07ff); | |
7e5ce651 PB |
237 | *tune_state = CT_TUNER_STEP_4; |
238 | } | |
01373a5c | 239 | |
7e5ce651 | 240 | return ret; |
01373a5c PB |
241 | } |
242 | ||
7e5ce651 | 243 | static int dib0070_set_ctrl_lo5(struct dvb_frontend *fe, u8 vco_bias_trim, u8 hf_div_trim, u8 cp_current, u8 third_order_filt) |
01373a5c | 244 | { |
7e5ce651 | 245 | struct dib0070_state *state = fe->tuner_priv; |
03245a5e | 246 | u16 lo5 = (third_order_filt << 14) | (0 << 13) | (1 << 12) | (3 << 9) | (cp_current << 6) | (hf_div_trim << 3) | (vco_bias_trim << 0); |
9c783036 | 247 | dprintk("CTRL_LO5: 0x%x", lo5); |
7e5ce651 PB |
248 | return dib0070_write_reg(state, 0x15, lo5); |
249 | } | |
01373a5c | 250 | |
2a6a30e0 | 251 | void dib0070_ctrl_agc_filter(struct dvb_frontend *fe, u8 open) |
7e5ce651 | 252 | { |
2a6a30e0 | 253 | struct dib0070_state *state = fe->tuner_priv; |
01373a5c | 254 | |
2a6a30e0 PB |
255 | if (open) { |
256 | dib0070_write_reg(state, 0x1b, 0xff00); | |
257 | dib0070_write_reg(state, 0x1a, 0x0000); | |
258 | } else { | |
259 | dib0070_write_reg(state, 0x1b, 0x4112); | |
03245a5e | 260 | if (state->cfg->vga_filter != 0) { |
9c783036 OG |
261 | dib0070_write_reg(state, 0x1a, state->cfg->vga_filter); |
262 | dprintk("vga filter register is set to %x", state->cfg->vga_filter); | |
03245a5e | 263 | } else |
9c783036 | 264 | dib0070_write_reg(state, 0x1a, 0x0009); |
2a6a30e0 PB |
265 | } |
266 | } | |
01373a5c | 267 | |
2a6a30e0 PB |
268 | EXPORT_SYMBOL(dib0070_ctrl_agc_filter); |
269 | struct dib0070_tuning { | |
03245a5e OG |
270 | u32 max_freq; /* for every frequency less than or equal to that field: this information is correct */ |
271 | u8 switch_trim; | |
272 | u8 vco_band; | |
273 | u8 hfdiv; | |
274 | u8 vco_multi; | |
275 | u8 presc; | |
276 | u8 wbdmux; | |
277 | u16 tuner_enable; | |
7e5ce651 | 278 | }; |
01373a5c | 279 | |
2a6a30e0 | 280 | struct dib0070_lna_match { |
03245a5e OG |
281 | u32 max_freq; /* for every frequency less than or equal to that field: this information is correct */ |
282 | u8 lna_band; | |
7e5ce651 | 283 | }; |
01373a5c | 284 | |
2a6a30e0 | 285 | static const struct dib0070_tuning dib0070s_tuning_table[] = { |
03245a5e OG |
286 | { 570000, 2, 1, 3, 6, 6, 2, 0x4000 | 0x0800 }, /* UHF */ |
287 | { 700000, 2, 0, 2, 4, 2, 2, 0x4000 | 0x0800 }, | |
288 | { 863999, 2, 1, 2, 4, 2, 2, 0x4000 | 0x0800 }, | |
289 | { 1500000, 0, 1, 1, 2, 2, 4, 0x2000 | 0x0400 }, /* LBAND */ | |
290 | { 1600000, 0, 1, 1, 2, 2, 4, 0x2000 | 0x0400 }, | |
291 | { 2000000, 0, 1, 1, 2, 2, 4, 0x2000 | 0x0400 }, | |
292 | { 0xffffffff, 0, 0, 8, 1, 2, 1, 0x8000 | 0x1000 }, /* SBAND */ | |
2a6a30e0 | 293 | }; |
01373a5c | 294 | |
2a6a30e0 | 295 | static const struct dib0070_tuning dib0070_tuning_table[] = { |
03245a5e OG |
296 | { 115000, 1, 0, 7, 24, 2, 1, 0x8000 | 0x1000 }, /* FM below 92MHz cannot be tuned */ |
297 | { 179500, 1, 0, 3, 16, 2, 1, 0x8000 | 0x1000 }, /* VHF */ | |
298 | { 189999, 1, 1, 3, 16, 2, 1, 0x8000 | 0x1000 }, | |
299 | { 250000, 1, 0, 6, 12, 2, 1, 0x8000 | 0x1000 }, | |
300 | { 569999, 2, 1, 5, 6, 2, 2, 0x4000 | 0x0800 }, /* UHF */ | |
9c783036 | 301 | { 699999, 2, 0, 1, 4, 2, 2, 0x4000 | 0x0800 }, |
03245a5e OG |
302 | { 863999, 2, 1, 1, 4, 2, 2, 0x4000 | 0x0800 }, |
303 | { 0xffffffff, 0, 1, 0, 2, 2, 4, 0x2000 | 0x0400 }, /* LBAND or everything higher than UHF */ | |
7e5ce651 | 304 | }; |
01373a5c | 305 | |
2a6a30e0 | 306 | static const struct dib0070_lna_match dib0070_lna_flip_chip[] = { |
03245a5e OG |
307 | { 180000, 0 }, /* VHF */ |
308 | { 188000, 1 }, | |
309 | { 196400, 2 }, | |
310 | { 250000, 3 }, | |
311 | { 550000, 0 }, /* UHF */ | |
312 | { 590000, 1 }, | |
313 | { 666000, 3 }, | |
314 | { 864000, 5 }, | |
315 | { 1500000, 0 }, /* LBAND or everything higher than UHF */ | |
316 | { 1600000, 1 }, | |
317 | { 2000000, 3 }, | |
318 | { 0xffffffff, 7 }, | |
2a6a30e0 | 319 | }; |
01373a5c | 320 | |
2a6a30e0 | 321 | static const struct dib0070_lna_match dib0070_lna[] = { |
03245a5e OG |
322 | { 180000, 0 }, /* VHF */ |
323 | { 188000, 1 }, | |
324 | { 196400, 2 }, | |
325 | { 250000, 3 }, | |
326 | { 550000, 2 }, /* UHF */ | |
327 | { 650000, 3 }, | |
328 | { 750000, 5 }, | |
329 | { 850000, 6 }, | |
330 | { 864000, 7 }, | |
331 | { 1500000, 0 }, /* LBAND or everything higher than UHF */ | |
332 | { 1600000, 1 }, | |
333 | { 2000000, 3 }, | |
334 | { 0xffffffff, 7 }, | |
7e5ce651 | 335 | }; |
01373a5c | 336 | |
9c783036 | 337 | #define LPF 100 |
c79c9fb3 | 338 | static int dib0070_tune_digital(struct dvb_frontend *fe) |
7e5ce651 | 339 | { |
03245a5e | 340 | struct dib0070_state *state = fe->tuner_priv; |
7e5ce651 | 341 | |
03245a5e OG |
342 | const struct dib0070_tuning *tune; |
343 | const struct dib0070_lna_match *lna_match; | |
7e5ce651 | 344 | |
03245a5e OG |
345 | enum frontend_tune_state *tune_state = &state->tune_state; |
346 | int ret = 10; /* 1ms is the default delay most of the time */ | |
2a6a30e0 | 347 | |
03245a5e OG |
348 | u8 band = (u8)BAND_OF_FREQUENCY(fe->dtv_property_cache.frequency/1000); |
349 | u32 freq = fe->dtv_property_cache.frequency/1000 + (band == BAND_VHF ? state->cfg->freq_offset_khz_vhf : state->cfg->freq_offset_khz_uhf); | |
2a6a30e0 PB |
350 | |
351 | #ifdef CONFIG_SYS_ISDBT | |
03245a5e | 352 | if (state->fe->dtv_property_cache.delivery_system == SYS_ISDBT && state->fe->dtv_property_cache.isdbt_sb_mode == 1) |
2a6a30e0 PB |
353 | if (((state->fe->dtv_property_cache.isdbt_sb_segment_count % 2) |
354 | && (state->fe->dtv_property_cache.isdbt_sb_segment_idx == ((state->fe->dtv_property_cache.isdbt_sb_segment_count / 2) + 1))) | |
355 | || (((state->fe->dtv_property_cache.isdbt_sb_segment_count % 2) == 0) | |
356 | && (state->fe->dtv_property_cache.isdbt_sb_segment_idx == (state->fe->dtv_property_cache.isdbt_sb_segment_count / 2))) | |
357 | || (((state->fe->dtv_property_cache.isdbt_sb_segment_count % 2) == 0) | |
358 | && (state->fe->dtv_property_cache.isdbt_sb_segment_idx == ((state->fe->dtv_property_cache.isdbt_sb_segment_count / 2) + 1)))) | |
9c783036 | 359 | freq += 850; |
7e5ce651 | 360 | #endif |
03245a5e OG |
361 | if (state->current_rf != freq) { |
362 | ||
363 | switch (state->revision) { | |
364 | case DIB0070S_P1A: | |
365 | tune = dib0070s_tuning_table; | |
366 | lna_match = dib0070_lna; | |
367 | break; | |
368 | default: | |
369 | tune = dib0070_tuning_table; | |
370 | if (state->cfg->flip_chip) | |
371 | lna_match = dib0070_lna_flip_chip; | |
372 | else | |
373 | lna_match = dib0070_lna; | |
374 | break; | |
375 | } | |
376 | while (freq > tune->max_freq) /* find the right one */ | |
377 | tune++; | |
378 | while (freq > lna_match->max_freq) /* find the right one */ | |
379 | lna_match++; | |
380 | ||
381 | state->current_tune_table_index = tune; | |
382 | state->lna_match = lna_match; | |
383 | } | |
384 | ||
385 | if (*tune_state == CT_TUNER_START) { | |
9c783036 | 386 | dprintk("Tuning for Band: %hd (%d kHz)", band, freq); |
2a6a30e0 | 387 | if (state->current_rf != freq) { |
9c783036 OG |
388 | u8 REFDIV; |
389 | u32 FBDiv, Rest, FREF, VCOF_kHz; | |
390 | u8 Den; | |
391 | ||
392 | state->current_rf = freq; | |
393 | state->lo4 = (state->current_tune_table_index->vco_band << 11) | (state->current_tune_table_index->hfdiv << 7); | |
394 | ||
395 | ||
396 | dib0070_write_reg(state, 0x17, 0x30); | |
397 | ||
398 | ||
399 | VCOF_kHz = state->current_tune_table_index->vco_multi * freq * 2; | |
400 | ||
401 | switch (band) { | |
402 | case BAND_VHF: | |
403 | REFDIV = (u8) ((state->cfg->clock_khz + 9999) / 10000); | |
404 | break; | |
405 | case BAND_FM: | |
406 | REFDIV = (u8) ((state->cfg->clock_khz) / 1000); | |
407 | break; | |
408 | default: | |
409 | REFDIV = (u8) (state->cfg->clock_khz / 10000); | |
410 | break; | |
411 | } | |
412 | FREF = state->cfg->clock_khz / REFDIV; | |
413 | ||
414 | ||
415 | ||
416 | switch (state->revision) { | |
417 | case DIB0070S_P1A: | |
418 | FBDiv = (VCOF_kHz / state->current_tune_table_index->presc / FREF); | |
419 | Rest = (VCOF_kHz / state->current_tune_table_index->presc) - FBDiv * FREF; | |
420 | break; | |
421 | ||
422 | case DIB0070_P1G: | |
423 | case DIB0070_P1F: | |
424 | default: | |
425 | FBDiv = (freq / (FREF / 2)); | |
426 | Rest = 2 * freq - FBDiv * FREF; | |
427 | break; | |
428 | } | |
429 | ||
430 | if (Rest < LPF) | |
431 | Rest = 0; | |
432 | else if (Rest < 2 * LPF) | |
433 | Rest = 2 * LPF; | |
434 | else if (Rest > (FREF - LPF)) { | |
435 | Rest = 0; | |
436 | FBDiv += 1; | |
437 | } else if (Rest > (FREF - 2 * LPF)) | |
438 | Rest = FREF - 2 * LPF; | |
439 | Rest = (Rest * 6528) / (FREF / 10); | |
440 | ||
441 | Den = 1; | |
442 | if (Rest > 0) { | |
443 | state->lo4 |= (1 << 14) | (1 << 12); | |
444 | Den = 255; | |
445 | } | |
446 | ||
447 | ||
448 | dib0070_write_reg(state, 0x11, (u16)FBDiv); | |
449 | dib0070_write_reg(state, 0x12, (Den << 8) | REFDIV); | |
450 | dib0070_write_reg(state, 0x13, (u16) Rest); | |
451 | ||
452 | if (state->revision == DIB0070S_P1A) { | |
453 | ||
454 | if (band == BAND_SBAND) { | |
455 | dib0070_set_ctrl_lo5(fe, 2, 4, 3, 0); | |
456 | dib0070_write_reg(state, 0x1d, 0xFFFF); | |
457 | } else | |
458 | dib0070_set_ctrl_lo5(fe, 5, 4, 3, 1); | |
459 | } | |
460 | ||
461 | dib0070_write_reg(state, 0x20, | |
462 | 0x0040 | 0x0020 | 0x0010 | 0x0008 | 0x0002 | 0x0001 | state->current_tune_table_index->tuner_enable); | |
463 | ||
464 | dprintk("REFDIV: %hd, FREF: %d", REFDIV, FREF); | |
465 | dprintk("FBDIV: %d, Rest: %d", FBDiv, Rest); | |
466 | dprintk("Num: %hd, Den: %hd, SD: %hd", (u16) Rest, Den, (state->lo4 >> 12) & 0x1); | |
467 | dprintk("HFDIV code: %hd", state->current_tune_table_index->hfdiv); | |
468 | dprintk("VCO = %hd", state->current_tune_table_index->vco_band); | |
469 | dprintk("VCOF: ((%hd*%d) << 1))", state->current_tune_table_index->vco_multi, freq); | |
470 | ||
471 | *tune_state = CT_TUNER_STEP_0; | |
03245a5e | 472 | } else { /* we are already tuned to this frequency - the configuration is correct */ |
9c783036 OG |
473 | ret = 50; /* wakeup time */ |
474 | *tune_state = CT_TUNER_STEP_5; | |
03245a5e OG |
475 | } |
476 | } else if ((*tune_state > CT_TUNER_START) && (*tune_state < CT_TUNER_STEP_4)) { | |
2a6a30e0 | 477 | |
03245a5e | 478 | ret = dib0070_captrim(state, tune_state); |
2a6a30e0 | 479 | |
03245a5e OG |
480 | } else if (*tune_state == CT_TUNER_STEP_4) { |
481 | const struct dib0070_wbd_gain_cfg *tmp = state->cfg->wbd_gain; | |
482 | if (tmp != NULL) { | |
9c783036 OG |
483 | while (freq/1000 > tmp->freq) /* find the right one */ |
484 | tmp++; | |
485 | dib0070_write_reg(state, 0x0f, | |
486 | (0 << 15) | (1 << 14) | (3 << 12) | |
487 | | (tmp->wbd_gain_val << 9) | (0 << 8) | (1 << 7) | |
488 | | (state->current_tune_table_index->wbdmux << 0)); | |
489 | state->wbd_gain_current = tmp->wbd_gain_val; | |
03245a5e | 490 | } else { |
2a6a30e0 PB |
491 | dib0070_write_reg(state, 0x0f, |
492 | (0 << 15) | (1 << 14) | (3 << 12) | (6 << 9) | (0 << 8) | (1 << 7) | (state->current_tune_table_index-> | |
493 | wbdmux << 0)); | |
03245a5e OG |
494 | state->wbd_gain_current = 6; |
495 | } | |
01373a5c | 496 | |
03245a5e | 497 | dib0070_write_reg(state, 0x06, 0x3fff); |
2a6a30e0 PB |
498 | dib0070_write_reg(state, 0x07, |
499 | (state->current_tune_table_index->switch_trim << 11) | (7 << 8) | (state->lna_match->lna_band << 3) | (3 << 0)); | |
03245a5e OG |
500 | dib0070_write_reg(state, 0x08, (state->lna_match->lna_band << 10) | (3 << 7) | (127)); |
501 | dib0070_write_reg(state, 0x0d, 0x0d80); | |
7e5ce651 | 502 | |
7e5ce651 | 503 | |
03245a5e OG |
504 | dib0070_write_reg(state, 0x18, 0x07ff); |
505 | dib0070_write_reg(state, 0x17, 0x0033); | |
506 | ||
507 | ||
508 | *tune_state = CT_TUNER_STEP_5; | |
509 | } else if (*tune_state == CT_TUNER_STEP_5) { | |
c79c9fb3 | 510 | dib0070_set_bandwidth(fe); |
03245a5e OG |
511 | *tune_state = CT_TUNER_STOP; |
512 | } else { | |
513 | ret = FE_CALLBACK_TIME_NEVER; /* tuner finished, time to call again infinite */ | |
514 | } | |
515 | return ret; | |
7e5ce651 PB |
516 | } |
517 | ||
03245a5e | 518 | |
14d24d14 | 519 | static int dib0070_tune(struct dvb_frontend *fe) |
7e5ce651 | 520 | { |
03245a5e OG |
521 | struct dib0070_state *state = fe->tuner_priv; |
522 | uint32_t ret; | |
7e5ce651 | 523 | |
03245a5e | 524 | state->tune_state = CT_TUNER_START; |
7e5ce651 | 525 | |
03245a5e | 526 | do { |
c79c9fb3 | 527 | ret = dib0070_tune_digital(fe); |
03245a5e | 528 | if (ret != FE_CALLBACK_TIME_NEVER) |
9c783036 | 529 | msleep(ret/10); |
03245a5e OG |
530 | else |
531 | break; | |
532 | } while (state->tune_state != CT_TUNER_STOP); | |
7e5ce651 | 533 | |
03245a5e | 534 | return 0; |
01373a5c PB |
535 | } |
536 | ||
537 | static int dib0070_wakeup(struct dvb_frontend *fe) | |
538 | { | |
2a6a30e0 PB |
539 | struct dib0070_state *state = fe->tuner_priv; |
540 | if (state->cfg->sleep) | |
541 | state->cfg->sleep(fe, 0); | |
01373a5c PB |
542 | return 0; |
543 | } | |
544 | ||
545 | static int dib0070_sleep(struct dvb_frontend *fe) | |
546 | { | |
2a6a30e0 PB |
547 | struct dib0070_state *state = fe->tuner_priv; |
548 | if (state->cfg->sleep) | |
549 | state->cfg->sleep(fe, 1); | |
01373a5c PB |
550 | return 0; |
551 | } | |
552 | ||
03245a5e OG |
553 | u8 dib0070_get_rf_output(struct dvb_frontend *fe) |
554 | { | |
555 | struct dib0070_state *state = fe->tuner_priv; | |
556 | return (dib0070_read_reg(state, 0x07) >> 11) & 0x3; | |
557 | } | |
03245a5e | 558 | EXPORT_SYMBOL(dib0070_get_rf_output); |
9c783036 | 559 | |
03245a5e OG |
560 | int dib0070_set_rf_output(struct dvb_frontend *fe, u8 no) |
561 | { | |
562 | struct dib0070_state *state = fe->tuner_priv; | |
563 | u16 rxrf2 = dib0070_read_reg(state, 0x07) & 0xfe7ff; | |
9c783036 OG |
564 | if (no > 3) |
565 | no = 3; | |
566 | if (no < 1) | |
567 | no = 1; | |
03245a5e OG |
568 | return dib0070_write_reg(state, 0x07, rxrf2 | (no << 11)); |
569 | } | |
03245a5e | 570 | EXPORT_SYMBOL(dib0070_set_rf_output); |
9c783036 | 571 | |
03245a5e OG |
572 | static const u16 dib0070_p1f_defaults[] = |
573 | ||
574 | { | |
01373a5c | 575 | 7, 0x02, |
03245a5e OG |
576 | 0x0008, |
577 | 0x0000, | |
578 | 0x0000, | |
579 | 0x0000, | |
580 | 0x0000, | |
581 | 0x0002, | |
582 | 0x0100, | |
01373a5c PB |
583 | |
584 | 3, 0x0d, | |
03245a5e OG |
585 | 0x0d80, |
586 | 0x0001, | |
587 | 0x0000, | |
01373a5c PB |
588 | |
589 | 4, 0x11, | |
03245a5e OG |
590 | 0x0000, |
591 | 0x0103, | |
592 | 0x0000, | |
593 | 0x0000, | |
01373a5c PB |
594 | |
595 | 3, 0x16, | |
03245a5e OG |
596 | 0x0004 | 0x0040, |
597 | 0x0030, | |
598 | 0x07ff, | |
01373a5c PB |
599 | |
600 | 6, 0x1b, | |
03245a5e OG |
601 | 0x4112, |
602 | 0xff00, | |
603 | 0xc07f, | |
604 | 0x0000, | |
605 | 0x0180, | |
606 | 0x4000 | 0x0800 | 0x0040 | 0x0020 | 0x0010 | 0x0008 | 0x0002 | 0x0001, | |
01373a5c PB |
607 | |
608 | 0, | |
609 | }; | |
610 | ||
7e5ce651 | 611 | static u16 dib0070_read_wbd_offset(struct dib0070_state *state, u8 gain) |
01373a5c | 612 | { |
03245a5e OG |
613 | u16 tuner_en = dib0070_read_reg(state, 0x20); |
614 | u16 offset; | |
615 | ||
616 | dib0070_write_reg(state, 0x18, 0x07ff); | |
617 | dib0070_write_reg(state, 0x20, 0x0800 | 0x4000 | 0x0040 | 0x0020 | 0x0010 | 0x0008 | 0x0002 | 0x0001); | |
618 | dib0070_write_reg(state, 0x0f, (1 << 14) | (2 << 12) | (gain << 9) | (1 << 8) | (1 << 7) | (0 << 0)); | |
619 | msleep(9); | |
620 | offset = dib0070_read_reg(state, 0x19); | |
621 | dib0070_write_reg(state, 0x20, tuner_en); | |
622 | return offset; | |
7e5ce651 | 623 | } |
3cb2c39d | 624 | |
7e5ce651 PB |
625 | static void dib0070_wbd_offset_calibration(struct dib0070_state *state) |
626 | { | |
03245a5e OG |
627 | u8 gain; |
628 | for (gain = 6; gain < 8; gain++) { | |
629 | state->wbd_offset_3_3[gain - 6] = ((dib0070_read_wbd_offset(state, gain) * 8 * 18 / 33 + 1) / 2); | |
9c783036 | 630 | dprintk("Gain: %d, WBDOffset (3.3V) = %hd", gain, state->wbd_offset_3_3[gain-6]); |
03245a5e | 631 | } |
01373a5c PB |
632 | } |
633 | ||
634 | u16 dib0070_wbd_offset(struct dvb_frontend *fe) | |
635 | { | |
03245a5e OG |
636 | struct dib0070_state *state = fe->tuner_priv; |
637 | const struct dib0070_wbd_gain_cfg *tmp = state->cfg->wbd_gain; | |
638 | u32 freq = fe->dtv_property_cache.frequency/1000; | |
639 | ||
640 | if (tmp != NULL) { | |
641 | while (freq/1000 > tmp->freq) /* find the right one */ | |
642 | tmp++; | |
643 | state->wbd_gain_current = tmp->wbd_gain_val; | |
2a6a30e0 | 644 | } else |
03245a5e | 645 | state->wbd_gain_current = 6; |
2a6a30e0 | 646 | |
03245a5e | 647 | return state->wbd_offset_3_3[state->wbd_gain_current - 6]; |
01373a5c | 648 | } |
01373a5c | 649 | EXPORT_SYMBOL(dib0070_wbd_offset); |
2a6a30e0 | 650 | |
01373a5c | 651 | #define pgm_read_word(w) (*w) |
7e5ce651 | 652 | static int dib0070_reset(struct dvb_frontend *fe) |
01373a5c | 653 | { |
03245a5e | 654 | struct dib0070_state *state = fe->tuner_priv; |
01373a5c PB |
655 | u16 l, r, *n; |
656 | ||
657 | HARD_RESET(state); | |
658 | ||
03245a5e | 659 | |
01373a5c PB |
660 | #ifndef FORCE_SBAND_TUNER |
661 | if ((dib0070_read_reg(state, 0x22) >> 9) & 0x1) | |
662 | state->revision = (dib0070_read_reg(state, 0x1f) >> 8) & 0xff; | |
663 | else | |
7e5ce651 PB |
664 | #else |
665 | #warning forcing SBAND | |
01373a5c | 666 | #endif |
03245a5e | 667 | state->revision = DIB0070S_P1A; |
01373a5c PB |
668 | |
669 | /* P1F or not */ | |
9c783036 | 670 | dprintk("Revision: %x", state->revision); |
01373a5c PB |
671 | |
672 | if (state->revision == DIB0070_P1D) { | |
9c783036 | 673 | dprintk("Error: this driver is not to be used meant for P1D or earlier"); |
01373a5c PB |
674 | return -EINVAL; |
675 | } | |
676 | ||
677 | n = (u16 *) dib0070_p1f_defaults; | |
678 | l = pgm_read_word(n++); | |
679 | while (l) { | |
680 | r = pgm_read_word(n++); | |
681 | do { | |
03245a5e | 682 | dib0070_write_reg(state, (u8)r, pgm_read_word(n++)); |
01373a5c PB |
683 | r++; |
684 | } while (--l); | |
685 | l = pgm_read_word(n++); | |
686 | } | |
687 | ||
688 | if (state->cfg->force_crystal_mode != 0) | |
689 | r = state->cfg->force_crystal_mode; | |
690 | else if (state->cfg->clock_khz >= 24000) | |
691 | r = 1; | |
692 | else | |
693 | r = 2; | |
694 | ||
03245a5e | 695 | |
01373a5c PB |
696 | r |= state->cfg->osc_buffer_state << 3; |
697 | ||
698 | dib0070_write_reg(state, 0x10, r); | |
7e5ce651 | 699 | dib0070_write_reg(state, 0x1f, (1 << 8) | ((state->cfg->clock_pad_drive & 0xf) << 5)); |
01373a5c PB |
700 | |
701 | if (state->cfg->invert_iq) { | |
702 | r = dib0070_read_reg(state, 0x02) & 0xffdf; | |
703 | dib0070_write_reg(state, 0x02, r | (1 << 5)); | |
704 | } | |
705 | ||
03245a5e OG |
706 | if (state->revision == DIB0070S_P1A) |
707 | dib0070_set_ctrl_lo5(fe, 2, 4, 3, 0); | |
708 | else | |
7e5ce651 | 709 | dib0070_set_ctrl_lo5(fe, 5, 4, state->cfg->charge_pump, state->cfg->enable_third_order_filter); |
01373a5c PB |
710 | |
711 | dib0070_write_reg(state, 0x01, (54 << 9) | 0xc8); | |
7e5ce651 | 712 | |
03245a5e | 713 | dib0070_wbd_offset_calibration(state); |
7e5ce651 | 714 | |
03245a5e OG |
715 | return 0; |
716 | } | |
717 | ||
718 | static int dib0070_get_frequency(struct dvb_frontend *fe, u32 *frequency) | |
719 | { | |
720 | struct dib0070_state *state = fe->tuner_priv; | |
721 | ||
722 | *frequency = 1000 * state->current_rf; | |
723 | return 0; | |
01373a5c PB |
724 | } |
725 | ||
01373a5c PB |
726 | static int dib0070_release(struct dvb_frontend *fe) |
727 | { | |
728 | kfree(fe->tuner_priv); | |
729 | fe->tuner_priv = NULL; | |
730 | return 0; | |
731 | } | |
732 | ||
7e5ce651 | 733 | static const struct dvb_tuner_ops dib0070_ops = { |
01373a5c | 734 | .info = { |
03245a5e OG |
735 | .name = "DiBcom DiB0070", |
736 | .frequency_min = 45000000, | |
737 | .frequency_max = 860000000, | |
738 | .frequency_step = 1000, | |
739 | }, | |
740 | .release = dib0070_release, | |
741 | ||
742 | .init = dib0070_wakeup, | |
743 | .sleep = dib0070_sleep, | |
744 | .set_params = dib0070_tune, | |
745 | ||
746 | .get_frequency = dib0070_get_frequency, | |
2a6a30e0 | 747 | // .get_bandwidth = dib0070_get_bandwidth |
01373a5c PB |
748 | }; |
749 | ||
9c783036 | 750 | struct dvb_frontend *dib0070_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct dib0070_config *cfg) |
01373a5c PB |
751 | { |
752 | struct dib0070_state *state = kzalloc(sizeof(struct dib0070_state), GFP_KERNEL); | |
753 | if (state == NULL) | |
754 | return NULL; | |
755 | ||
756 | state->cfg = cfg; | |
757 | state->i2c = i2c; | |
03245a5e | 758 | state->fe = fe; |
79fcce32 | 759 | mutex_init(&state->i2c_buffer_lock); |
01373a5c PB |
760 | fe->tuner_priv = state; |
761 | ||
7e5ce651 | 762 | if (dib0070_reset(fe) != 0) |
01373a5c PB |
763 | goto free_mem; |
764 | ||
01373a5c PB |
765 | printk(KERN_INFO "DiB0070: successfully identified\n"); |
766 | memcpy(&fe->ops.tuner_ops, &dib0070_ops, sizeof(struct dvb_tuner_ops)); | |
767 | ||
768 | fe->tuner_priv = state; | |
769 | return fe; | |
770 | ||
03245a5e | 771 | free_mem: |
01373a5c PB |
772 | kfree(state); |
773 | fe->tuner_priv = NULL; | |
774 | return NULL; | |
775 | } | |
776 | EXPORT_SYMBOL(dib0070_attach); | |
777 | ||
778 | MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>"); | |
779 | MODULE_DESCRIPTION("Driver for the DiBcom 0070 base-band RF Tuner"); | |
780 | MODULE_LICENSE("GPL"); |