Commit | Line | Data |
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54a4613f MCC |
1 | /* |
2 | * Driver for mt2063 Micronas tuner | |
3 | * | |
37e59f87 | 4 | * Copyright (c) 2011 Mauro Carvalho Chehab |
54a4613f | 5 | * |
d76f28f2 MCC |
6 | * This driver came from a driver originally written by: |
7 | * Henry Wang <Henry.wang@AzureWave.com> | |
8 | * Made publicly available by Terratec, at: | |
54a4613f | 9 | * http://linux.terratec.de/files/TERRATEC_H7/20110323_TERRATEC_H7_Linux.tar.gz |
d76f28f2 | 10 | * The original driver's license is GPL, as declared with MODULE_LICENSE() |
54a4613f MCC |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation under version 2 of the License. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | */ | |
21 | ||
223c7b05 MCC |
22 | #include <linux/init.h> |
23 | #include <linux/kernel.h> | |
24 | #include <linux/module.h> | |
25 | #include <linux/string.h> | |
99ac5412 | 26 | #include <linux/videodev2.h> |
0e301442 | 27 | |
0e301442 MCC |
28 | #include "mt2063.h" |
29 | ||
db6587bf MCC |
30 | static unsigned int debug; |
31 | module_param(debug, int, 0644); | |
32 | MODULE_PARM_DESC(debug, "Set Verbosity level"); | |
33 | ||
34 | #define dprintk(level, fmt, arg...) do { \ | |
35 | if (debug >= level) \ | |
36 | printk(KERN_DEBUG "mt2063 %s: " fmt, __func__, ## arg); \ | |
37 | } while (0) | |
38 | ||
0e301442 | 39 | |
31e67fae | 40 | /* positive error codes used internally */ |
29a0a4fe | 41 | |
fdf77a4f | 42 | /* Info: Unavoidable LO-related spur may be present in the output */ |
29a0a4fe | 43 | #define MT2063_SPUR_PRESENT_ERR (0x00800000) |
6d3d748a MCC |
44 | |
45 | /* Info: Mask of bits used for # of LO-related spurs that were avoided during tuning */ | |
46 | #define MT2063_SPUR_CNT_MASK (0x001f0000) | |
47 | #define MT2063_SPUR_SHIFT (16) | |
48 | ||
6d3d748a MCC |
49 | /* Info: Upconverter frequency is out of range (may be reason for MT_UPC_UNLOCK) */ |
50 | #define MT2063_UPC_RANGE (0x04000000) | |
51 | ||
52 | /* Info: Downconverter frequency is out of range (may be reason for MT_DPC_UNLOCK) */ | |
53 | #define MT2063_DNC_RANGE (0x08000000) | |
54 | ||
6d3d748a MCC |
55 | /* |
56 | * Constant defining the version of the following structure | |
57 | * and therefore the API for this code. | |
58 | * | |
59 | * When compiling the tuner driver, the preprocessor will | |
60 | * check against this version number to make sure that | |
61 | * it matches the version that the tuner driver knows about. | |
62 | */ | |
6d3d748a MCC |
63 | |
64 | /* DECT Frequency Avoidance */ | |
65 | #define MT2063_DECT_AVOID_US_FREQS 0x00000001 | |
66 | ||
67 | #define MT2063_DECT_AVOID_EURO_FREQS 0x00000002 | |
68 | ||
69 | #define MT2063_EXCLUDE_US_DECT_FREQUENCIES(s) (((s) & MT2063_DECT_AVOID_US_FREQS) != 0) | |
70 | ||
71 | #define MT2063_EXCLUDE_EURO_DECT_FREQUENCIES(s) (((s) & MT2063_DECT_AVOID_EURO_FREQS) != 0) | |
72 | ||
73 | enum MT2063_DECT_Avoid_Type { | |
74 | MT2063_NO_DECT_AVOIDANCE = 0, /* Do not create DECT exclusion zones. */ | |
75 | MT2063_AVOID_US_DECT = MT2063_DECT_AVOID_US_FREQS, /* Avoid US DECT frequencies. */ | |
76 | MT2063_AVOID_EURO_DECT = MT2063_DECT_AVOID_EURO_FREQS, /* Avoid European DECT frequencies. */ | |
77 | MT2063_AVOID_BOTH /* Avoid both regions. Not typically used. */ | |
78 | }; | |
79 | ||
80 | #define MT2063_MAX_ZONES 48 | |
81 | ||
6d3d748a MCC |
82 | struct MT2063_ExclZone_t { |
83 | u32 min_; | |
84 | u32 max_; | |
85 | struct MT2063_ExclZone_t *next_; | |
86 | }; | |
87 | ||
88 | /* | |
89 | * Structure of data needed for Spur Avoidance | |
90 | */ | |
91 | struct MT2063_AvoidSpursData_t { | |
6d3d748a MCC |
92 | u32 f_ref; |
93 | u32 f_in; | |
94 | u32 f_LO1; | |
95 | u32 f_if1_Center; | |
96 | u32 f_if1_Request; | |
97 | u32 f_if1_bw; | |
98 | u32 f_LO2; | |
99 | u32 f_out; | |
100 | u32 f_out_bw; | |
101 | u32 f_LO1_Step; | |
102 | u32 f_LO2_Step; | |
103 | u32 f_LO1_FracN_Avoid; | |
104 | u32 f_LO2_FracN_Avoid; | |
105 | u32 f_zif_bw; | |
106 | u32 f_min_LO_Separation; | |
107 | u32 maxH1; | |
108 | u32 maxH2; | |
109 | enum MT2063_DECT_Avoid_Type avoidDECT; | |
110 | u32 bSpurPresent; | |
111 | u32 bSpurAvoided; | |
112 | u32 nSpursFound; | |
113 | u32 nZones; | |
114 | struct MT2063_ExclZone_t *freeZones; | |
115 | struct MT2063_ExclZone_t *usedZones; | |
116 | struct MT2063_ExclZone_t MT2063_ExclZones[MT2063_MAX_ZONES]; | |
117 | }; | |
118 | ||
6d3d748a | 119 | /* |
54a4613f MCC |
120 | * Parameter for function MT2063_SetPowerMask that specifies the power down |
121 | * of various sections of the MT2063. | |
6d3d748a MCC |
122 | */ |
123 | enum MT2063_Mask_Bits { | |
124 | MT2063_REG_SD = 0x0040, /* Shutdown regulator */ | |
125 | MT2063_SRO_SD = 0x0020, /* Shutdown SRO */ | |
126 | MT2063_AFC_SD = 0x0010, /* Shutdown AFC A/D */ | |
127 | MT2063_PD_SD = 0x0002, /* Enable power detector shutdown */ | |
128 | MT2063_PDADC_SD = 0x0001, /* Enable power detector A/D shutdown */ | |
129 | MT2063_VCO_SD = 0x8000, /* Enable VCO shutdown */ | |
130 | MT2063_LTX_SD = 0x4000, /* Enable LTX shutdown */ | |
131 | MT2063_LT1_SD = 0x2000, /* Enable LT1 shutdown */ | |
132 | MT2063_LNA_SD = 0x1000, /* Enable LNA shutdown */ | |
133 | MT2063_UPC_SD = 0x0800, /* Enable upconverter shutdown */ | |
134 | MT2063_DNC_SD = 0x0400, /* Enable downconverter shutdown */ | |
135 | MT2063_VGA_SD = 0x0200, /* Enable VGA shutdown */ | |
136 | MT2063_AMP_SD = 0x0100, /* Enable AMP shutdown */ | |
137 | MT2063_ALL_SD = 0xFF73, /* All shutdown bits for this tuner */ | |
138 | MT2063_NONE_SD = 0x0000 /* No shutdown bits */ | |
139 | }; | |
140 | ||
6d3d748a MCC |
141 | /* |
142 | * Possible values for MT2063_DNC_OUTPUT | |
143 | */ | |
144 | enum MT2063_DNC_Output_Enable { | |
145 | MT2063_DNC_NONE = 0, | |
146 | MT2063_DNC_1, | |
147 | MT2063_DNC_2, | |
148 | MT2063_DNC_BOTH | |
149 | }; | |
150 | ||
151 | /* | |
54a4613f MCC |
152 | * Two-wire serial bus subaddresses of the tuner registers. |
153 | * Also known as the tuner's register addresses. | |
154 | */ | |
6d3d748a MCC |
155 | enum MT2063_Register_Offsets { |
156 | MT2063_REG_PART_REV = 0, /* 0x00: Part/Rev Code */ | |
157 | MT2063_REG_LO1CQ_1, /* 0x01: LO1C Queued Byte 1 */ | |
158 | MT2063_REG_LO1CQ_2, /* 0x02: LO1C Queued Byte 2 */ | |
159 | MT2063_REG_LO2CQ_1, /* 0x03: LO2C Queued Byte 1 */ | |
160 | MT2063_REG_LO2CQ_2, /* 0x04: LO2C Queued Byte 2 */ | |
161 | MT2063_REG_LO2CQ_3, /* 0x05: LO2C Queued Byte 3 */ | |
162 | MT2063_REG_RSVD_06, /* 0x06: Reserved */ | |
163 | MT2063_REG_LO_STATUS, /* 0x07: LO Status */ | |
164 | MT2063_REG_FIFFC, /* 0x08: FIFF Center */ | |
165 | MT2063_REG_CLEARTUNE, /* 0x09: ClearTune Filter */ | |
166 | MT2063_REG_ADC_OUT, /* 0x0A: ADC_OUT */ | |
167 | MT2063_REG_LO1C_1, /* 0x0B: LO1C Byte 1 */ | |
168 | MT2063_REG_LO1C_2, /* 0x0C: LO1C Byte 2 */ | |
169 | MT2063_REG_LO2C_1, /* 0x0D: LO2C Byte 1 */ | |
170 | MT2063_REG_LO2C_2, /* 0x0E: LO2C Byte 2 */ | |
171 | MT2063_REG_LO2C_3, /* 0x0F: LO2C Byte 3 */ | |
172 | MT2063_REG_RSVD_10, /* 0x10: Reserved */ | |
173 | MT2063_REG_PWR_1, /* 0x11: PWR Byte 1 */ | |
174 | MT2063_REG_PWR_2, /* 0x12: PWR Byte 2 */ | |
175 | MT2063_REG_TEMP_STATUS, /* 0x13: Temp Status */ | |
176 | MT2063_REG_XO_STATUS, /* 0x14: Crystal Status */ | |
177 | MT2063_REG_RF_STATUS, /* 0x15: RF Attn Status */ | |
178 | MT2063_REG_FIF_STATUS, /* 0x16: FIF Attn Status */ | |
179 | MT2063_REG_LNA_OV, /* 0x17: LNA Attn Override */ | |
180 | MT2063_REG_RF_OV, /* 0x18: RF Attn Override */ | |
181 | MT2063_REG_FIF_OV, /* 0x19: FIF Attn Override */ | |
182 | MT2063_REG_LNA_TGT, /* 0x1A: Reserved */ | |
183 | MT2063_REG_PD1_TGT, /* 0x1B: Pwr Det 1 Target */ | |
184 | MT2063_REG_PD2_TGT, /* 0x1C: Pwr Det 2 Target */ | |
185 | MT2063_REG_RSVD_1D, /* 0x1D: Reserved */ | |
186 | MT2063_REG_RSVD_1E, /* 0x1E: Reserved */ | |
187 | MT2063_REG_RSVD_1F, /* 0x1F: Reserved */ | |
188 | MT2063_REG_RSVD_20, /* 0x20: Reserved */ | |
189 | MT2063_REG_BYP_CTRL, /* 0x21: Bypass Control */ | |
190 | MT2063_REG_RSVD_22, /* 0x22: Reserved */ | |
191 | MT2063_REG_RSVD_23, /* 0x23: Reserved */ | |
192 | MT2063_REG_RSVD_24, /* 0x24: Reserved */ | |
193 | MT2063_REG_RSVD_25, /* 0x25: Reserved */ | |
194 | MT2063_REG_RSVD_26, /* 0x26: Reserved */ | |
195 | MT2063_REG_RSVD_27, /* 0x27: Reserved */ | |
196 | MT2063_REG_FIFF_CTRL, /* 0x28: FIFF Control */ | |
197 | MT2063_REG_FIFF_OFFSET, /* 0x29: FIFF Offset */ | |
198 | MT2063_REG_CTUNE_CTRL, /* 0x2A: Reserved */ | |
199 | MT2063_REG_CTUNE_OV, /* 0x2B: Reserved */ | |
200 | MT2063_REG_CTRL_2C, /* 0x2C: Reserved */ | |
201 | MT2063_REG_FIFF_CTRL2, /* 0x2D: Fiff Control */ | |
202 | MT2063_REG_RSVD_2E, /* 0x2E: Reserved */ | |
203 | MT2063_REG_DNC_GAIN, /* 0x2F: DNC Control */ | |
204 | MT2063_REG_VGA_GAIN, /* 0x30: VGA Gain Ctrl */ | |
205 | MT2063_REG_RSVD_31, /* 0x31: Reserved */ | |
206 | MT2063_REG_TEMP_SEL, /* 0x32: Temperature Selection */ | |
207 | MT2063_REG_RSVD_33, /* 0x33: Reserved */ | |
208 | MT2063_REG_RSVD_34, /* 0x34: Reserved */ | |
209 | MT2063_REG_RSVD_35, /* 0x35: Reserved */ | |
210 | MT2063_REG_RSVD_36, /* 0x36: Reserved */ | |
211 | MT2063_REG_RSVD_37, /* 0x37: Reserved */ | |
212 | MT2063_REG_RSVD_38, /* 0x38: Reserved */ | |
213 | MT2063_REG_RSVD_39, /* 0x39: Reserved */ | |
214 | MT2063_REG_RSVD_3A, /* 0x3A: Reserved */ | |
215 | MT2063_REG_RSVD_3B, /* 0x3B: Reserved */ | |
216 | MT2063_REG_RSVD_3C, /* 0x3C: Reserved */ | |
217 | MT2063_REG_END_REGS | |
218 | }; | |
219 | ||
6d3d748a MCC |
220 | struct mt2063_state { |
221 | struct i2c_adapter *i2c; | |
222 | ||
1b0bfee3 MCC |
223 | bool init; |
224 | ||
6d3d748a MCC |
225 | const struct mt2063_config *config; |
226 | struct dvb_tuner_ops ops; | |
227 | struct dvb_frontend *frontend; | |
6d3d748a | 228 | |
6d3d748a MCC |
229 | u32 frequency; |
230 | u32 srate; | |
231 | u32 bandwidth; | |
232 | u32 reference; | |
51f0f7b3 MCC |
233 | |
234 | u32 tuner_id; | |
235 | struct MT2063_AvoidSpursData_t AS_Data; | |
236 | u32 f_IF1_actual; | |
237 | u32 rcvr_mode; | |
238 | u32 ctfilt_sw; | |
239 | u32 CTFiltMax[31]; | |
240 | u32 num_regs; | |
241 | u8 reg[MT2063_REG_END_REGS]; | |
6d3d748a | 242 | }; |
0ff48432 | 243 | |
e1de3d18 MCC |
244 | /* |
245 | * mt2063_write - Write data into the I2C bus | |
246 | */ | |
20eb13a7 | 247 | static int mt2063_write(struct mt2063_state *state, u8 reg, u8 *data, u32 len) |
0e301442 | 248 | { |
e1de3d18 | 249 | struct dvb_frontend *fe = state->frontend; |
0e301442 | 250 | int ret; |
e1de3d18 | 251 | u8 buf[60]; |
0e301442 MCC |
252 | struct i2c_msg msg = { |
253 | .addr = state->config->tuner_address, | |
254 | .flags = 0, | |
255 | .buf = buf, | |
256 | .len = len + 1 | |
257 | }; | |
258 | ||
db6587bf MCC |
259 | dprintk(2, "\n"); |
260 | ||
e1de3d18 | 261 | msg.buf[0] = reg; |
0e301442 MCC |
262 | memcpy(msg.buf + 1, data, len); |
263 | ||
99ac5412 MCC |
264 | if (fe->ops.i2c_gate_ctrl) |
265 | fe->ops.i2c_gate_ctrl(fe, 1); | |
0e301442 | 266 | ret = i2c_transfer(state->i2c, &msg, 1); |
99ac5412 MCC |
267 | if (fe->ops.i2c_gate_ctrl) |
268 | fe->ops.i2c_gate_ctrl(fe, 0); | |
0e301442 MCC |
269 | |
270 | if (ret < 0) | |
6fb16700 | 271 | printk(KERN_ERR "%s error ret=%d\n", __func__, ret); |
0e301442 MCC |
272 | |
273 | return ret; | |
274 | } | |
275 | ||
8294e3ed MCC |
276 | /* |
277 | * mt2063_write - Write register data into the I2C bus, caching the value | |
278 | */ | |
20eb13a7 | 279 | static int mt2063_setreg(struct mt2063_state *state, u8 reg, u8 val) |
8294e3ed | 280 | { |
20eb13a7 | 281 | int status; |
8294e3ed | 282 | |
db6587bf MCC |
283 | dprintk(2, "\n"); |
284 | ||
8294e3ed MCC |
285 | if (reg >= MT2063_REG_END_REGS) |
286 | return -ERANGE; | |
287 | ||
288 | status = mt2063_write(state, reg, &val, 1); | |
289 | if (status < 0) | |
290 | return status; | |
291 | ||
292 | state->reg[reg] = val; | |
293 | ||
294 | return 0; | |
295 | } | |
296 | ||
e1de3d18 MCC |
297 | /* |
298 | * mt2063_read - Read data from the I2C bus | |
299 | */ | |
20eb13a7 | 300 | static int mt2063_read(struct mt2063_state *state, |
51f0f7b3 | 301 | u8 subAddress, u8 *pData, u32 cnt) |
0e301442 | 302 | { |
20eb13a7 | 303 | int status = 0; /* Status to be returned */ |
51f0f7b3 MCC |
304 | struct dvb_frontend *fe = state->frontend; |
305 | u32 i = 0; | |
306 | ||
36ae6df0 | 307 | dprintk(2, "addr 0x%02x, cnt %d\n", subAddress, cnt); |
db6587bf | 308 | |
99ac5412 MCC |
309 | if (fe->ops.i2c_gate_ctrl) |
310 | fe->ops.i2c_gate_ctrl(fe, 1); | |
0e301442 MCC |
311 | |
312 | for (i = 0; i < cnt; i++) { | |
e1de3d18 MCC |
313 | u8 b0[] = { subAddress + i }; |
314 | struct i2c_msg msg[] = { | |
315 | { | |
316 | .addr = state->config->tuner_address, | |
36ae6df0 | 317 | .flags = 0, |
e1de3d18 MCC |
318 | .buf = b0, |
319 | .len = 1 | |
320 | }, { | |
321 | .addr = state->config->tuner_address, | |
322 | .flags = I2C_M_RD, | |
36ae6df0 | 323 | .buf = pData + i, |
e1de3d18 MCC |
324 | .len = 1 |
325 | } | |
326 | }; | |
327 | ||
36ae6df0 MCC |
328 | status = i2c_transfer(state->i2c, msg, 2); |
329 | dprintk(2, "addr 0x%02x, ret = %d, val = 0x%02x\n", | |
330 | subAddress + i, status, *(pData + i)); | |
331 | if (status < 0) | |
0e301442 | 332 | break; |
0e301442 | 333 | } |
99ac5412 MCC |
334 | if (fe->ops.i2c_gate_ctrl) |
335 | fe->ops.i2c_gate_ctrl(fe, 0); | |
336 | ||
36ae6df0 MCC |
337 | if (status < 0) |
338 | printk(KERN_ERR "Can't read from address 0x%02x,\n", | |
339 | subAddress + i); | |
340 | ||
6fb16700 | 341 | return status; |
0e301442 MCC |
342 | } |
343 | ||
e930b3a0 MCC |
344 | /* |
345 | * FIXME: Is this really needed? | |
346 | */ | |
f867695a | 347 | static int MT2063_Sleep(struct dvb_frontend *fe) |
0e301442 MCC |
348 | { |
349 | /* | |
54a4613f | 350 | * ToDo: Add code here to implement a OS blocking |
0e301442 | 351 | */ |
6da34706 | 352 | msleep(100); |
f867695a MCC |
353 | |
354 | return 0; | |
0e301442 MCC |
355 | } |
356 | ||
e930b3a0 MCC |
357 | /* |
358 | * Microtune spur avoidance | |
359 | */ | |
0e301442 MCC |
360 | |
361 | /* Implement ceiling, floor functions. */ | |
362 | #define ceil(n, d) (((n) < 0) ? (-((-(n))/(d))) : (n)/(d) + ((n)%(d) != 0)) | |
0e301442 | 363 | #define floor(n, d) (((n) < 0) ? (-((-(n))/(d))) - ((n)%(d) != 0) : (n)/(d)) |
0e301442 MCC |
364 | |
365 | struct MT2063_FIFZone_t { | |
cfde8925 MCC |
366 | s32 min_; |
367 | s32 max_; | |
0e301442 MCC |
368 | }; |
369 | ||
0e301442 MCC |
370 | static struct MT2063_ExclZone_t *InsertNode(struct MT2063_AvoidSpursData_t |
371 | *pAS_Info, | |
372 | struct MT2063_ExclZone_t *pPrevNode) | |
373 | { | |
374 | struct MT2063_ExclZone_t *pNode; | |
db6587bf MCC |
375 | |
376 | dprintk(2, "\n"); | |
377 | ||
0e301442 MCC |
378 | /* Check for a node in the free list */ |
379 | if (pAS_Info->freeZones != NULL) { | |
380 | /* Use one from the free list */ | |
381 | pNode = pAS_Info->freeZones; | |
382 | pAS_Info->freeZones = pNode->next_; | |
383 | } else { | |
384 | /* Grab a node from the array */ | |
385 | pNode = &pAS_Info->MT2063_ExclZones[pAS_Info->nZones]; | |
386 | } | |
387 | ||
388 | if (pPrevNode != NULL) { | |
389 | pNode->next_ = pPrevNode->next_; | |
390 | pPrevNode->next_ = pNode; | |
391 | } else { /* insert at the beginning of the list */ | |
392 | ||
393 | pNode->next_ = pAS_Info->usedZones; | |
394 | pAS_Info->usedZones = pNode; | |
395 | } | |
396 | ||
397 | pAS_Info->nZones++; | |
398 | return pNode; | |
399 | } | |
400 | ||
401 | static struct MT2063_ExclZone_t *RemoveNode(struct MT2063_AvoidSpursData_t | |
402 | *pAS_Info, | |
403 | struct MT2063_ExclZone_t *pPrevNode, | |
404 | struct MT2063_ExclZone_t | |
405 | *pNodeToRemove) | |
406 | { | |
407 | struct MT2063_ExclZone_t *pNext = pNodeToRemove->next_; | |
408 | ||
db6587bf MCC |
409 | dprintk(2, "\n"); |
410 | ||
0e301442 MCC |
411 | /* Make previous node point to the subsequent node */ |
412 | if (pPrevNode != NULL) | |
413 | pPrevNode->next_ = pNext; | |
414 | ||
415 | /* Add pNodeToRemove to the beginning of the freeZones */ | |
416 | pNodeToRemove->next_ = pAS_Info->freeZones; | |
417 | pAS_Info->freeZones = pNodeToRemove; | |
418 | ||
419 | /* Decrement node count */ | |
420 | pAS_Info->nZones--; | |
421 | ||
422 | return pNext; | |
423 | } | |
424 | ||
54a4613f MCC |
425 | /* |
426 | * MT_AddExclZone() | |
427 | * | |
428 | * Add (and merge) an exclusion zone into the list. | |
429 | * If the range (f_min, f_max) is totally outside the | |
430 | * 1st IF BW, ignore the entry. | |
431 | * If the range (f_min, f_max) is negative, ignore the entry. | |
432 | */ | |
bf97555e | 433 | static void MT2063_AddExclZone(struct MT2063_AvoidSpursData_t *pAS_Info, |
e3f94fb8 | 434 | u32 f_min, u32 f_max) |
0e301442 MCC |
435 | { |
436 | struct MT2063_ExclZone_t *pNode = pAS_Info->usedZones; | |
437 | struct MT2063_ExclZone_t *pPrev = NULL; | |
438 | struct MT2063_ExclZone_t *pNext = NULL; | |
439 | ||
db6587bf MCC |
440 | dprintk(2, "\n"); |
441 | ||
0e301442 MCC |
442 | /* Check to see if this overlaps the 1st IF filter */ |
443 | if ((f_max > (pAS_Info->f_if1_Center - (pAS_Info->f_if1_bw / 2))) | |
444 | && (f_min < (pAS_Info->f_if1_Center + (pAS_Info->f_if1_bw / 2))) | |
445 | && (f_min < f_max)) { | |
446 | /* | |
54a4613f MCC |
447 | * 1 2 3 4 5 6 |
448 | * | |
449 | * New entry: |---| |--| |--| |-| |---| |--| | |
450 | * or or or or or | |
451 | * Existing: |--| |--| |--| |---| |-| |--| | |
0e301442 MCC |
452 | */ |
453 | ||
454 | /* Check for our place in the list */ | |
455 | while ((pNode != NULL) && (pNode->max_ < f_min)) { | |
456 | pPrev = pNode; | |
457 | pNode = pNode->next_; | |
458 | } | |
459 | ||
460 | if ((pNode != NULL) && (pNode->min_ < f_max)) { | |
461 | /* Combine me with pNode */ | |
462 | if (f_min < pNode->min_) | |
463 | pNode->min_ = f_min; | |
464 | if (f_max > pNode->max_) | |
465 | pNode->max_ = f_max; | |
466 | } else { | |
467 | pNode = InsertNode(pAS_Info, pPrev); | |
468 | pNode->min_ = f_min; | |
469 | pNode->max_ = f_max; | |
470 | } | |
471 | ||
472 | /* Look for merging possibilities */ | |
473 | pNext = pNode->next_; | |
474 | while ((pNext != NULL) && (pNext->min_ < pNode->max_)) { | |
475 | if (pNext->max_ > pNode->max_) | |
476 | pNode->max_ = pNext->max_; | |
54a4613f MCC |
477 | /* Remove pNext, return ptr to pNext->next */ |
478 | pNext = RemoveNode(pAS_Info, pNode, pNext); | |
0e301442 MCC |
479 | } |
480 | } | |
481 | } | |
482 | ||
8294e3ed | 483 | /* |
54a4613f MCC |
484 | * Reset all exclusion zones. |
485 | * Add zones to protect the PLL FracN regions near zero | |
486 | */ | |
8294e3ed MCC |
487 | static void MT2063_ResetExclZones(struct MT2063_AvoidSpursData_t *pAS_Info) |
488 | { | |
489 | u32 center; | |
490 | ||
db6587bf MCC |
491 | dprintk(2, "\n"); |
492 | ||
8294e3ed MCC |
493 | pAS_Info->nZones = 0; /* this clears the used list */ |
494 | pAS_Info->usedZones = NULL; /* reset ptr */ | |
495 | pAS_Info->freeZones = NULL; /* reset ptr */ | |
496 | ||
497 | center = | |
498 | pAS_Info->f_ref * | |
499 | ((pAS_Info->f_if1_Center - pAS_Info->f_if1_bw / 2 + | |
500 | pAS_Info->f_in) / pAS_Info->f_ref) - pAS_Info->f_in; | |
501 | while (center < | |
502 | pAS_Info->f_if1_Center + pAS_Info->f_if1_bw / 2 + | |
503 | pAS_Info->f_LO1_FracN_Avoid) { | |
504 | /* Exclude LO1 FracN */ | |
505 | MT2063_AddExclZone(pAS_Info, | |
506 | center - pAS_Info->f_LO1_FracN_Avoid, | |
507 | center - 1); | |
508 | MT2063_AddExclZone(pAS_Info, center + 1, | |
509 | center + pAS_Info->f_LO1_FracN_Avoid); | |
510 | center += pAS_Info->f_ref; | |
511 | } | |
512 | ||
513 | center = | |
514 | pAS_Info->f_ref * | |
515 | ((pAS_Info->f_if1_Center - pAS_Info->f_if1_bw / 2 - | |
516 | pAS_Info->f_out) / pAS_Info->f_ref) + pAS_Info->f_out; | |
517 | while (center < | |
518 | pAS_Info->f_if1_Center + pAS_Info->f_if1_bw / 2 + | |
519 | pAS_Info->f_LO2_FracN_Avoid) { | |
520 | /* Exclude LO2 FracN */ | |
521 | MT2063_AddExclZone(pAS_Info, | |
522 | center - pAS_Info->f_LO2_FracN_Avoid, | |
523 | center - 1); | |
524 | MT2063_AddExclZone(pAS_Info, center + 1, | |
525 | center + pAS_Info->f_LO2_FracN_Avoid); | |
526 | center += pAS_Info->f_ref; | |
527 | } | |
528 | ||
529 | if (MT2063_EXCLUDE_US_DECT_FREQUENCIES(pAS_Info->avoidDECT)) { | |
530 | /* Exclude LO1 values that conflict with DECT channels */ | |
531 | MT2063_AddExclZone(pAS_Info, 1920836000 - pAS_Info->f_in, 1922236000 - pAS_Info->f_in); /* Ctr = 1921.536 */ | |
532 | MT2063_AddExclZone(pAS_Info, 1922564000 - pAS_Info->f_in, 1923964000 - pAS_Info->f_in); /* Ctr = 1923.264 */ | |
533 | MT2063_AddExclZone(pAS_Info, 1924292000 - pAS_Info->f_in, 1925692000 - pAS_Info->f_in); /* Ctr = 1924.992 */ | |
534 | MT2063_AddExclZone(pAS_Info, 1926020000 - pAS_Info->f_in, 1927420000 - pAS_Info->f_in); /* Ctr = 1926.720 */ | |
535 | MT2063_AddExclZone(pAS_Info, 1927748000 - pAS_Info->f_in, 1929148000 - pAS_Info->f_in); /* Ctr = 1928.448 */ | |
536 | } | |
537 | ||
538 | if (MT2063_EXCLUDE_EURO_DECT_FREQUENCIES(pAS_Info->avoidDECT)) { | |
539 | MT2063_AddExclZone(pAS_Info, 1896644000 - pAS_Info->f_in, 1898044000 - pAS_Info->f_in); /* Ctr = 1897.344 */ | |
540 | MT2063_AddExclZone(pAS_Info, 1894916000 - pAS_Info->f_in, 1896316000 - pAS_Info->f_in); /* Ctr = 1895.616 */ | |
541 | MT2063_AddExclZone(pAS_Info, 1893188000 - pAS_Info->f_in, 1894588000 - pAS_Info->f_in); /* Ctr = 1893.888 */ | |
542 | MT2063_AddExclZone(pAS_Info, 1891460000 - pAS_Info->f_in, 1892860000 - pAS_Info->f_in); /* Ctr = 1892.16 */ | |
543 | MT2063_AddExclZone(pAS_Info, 1889732000 - pAS_Info->f_in, 1891132000 - pAS_Info->f_in); /* Ctr = 1890.432 */ | |
544 | MT2063_AddExclZone(pAS_Info, 1888004000 - pAS_Info->f_in, 1889404000 - pAS_Info->f_in); /* Ctr = 1888.704 */ | |
545 | MT2063_AddExclZone(pAS_Info, 1886276000 - pAS_Info->f_in, 1887676000 - pAS_Info->f_in); /* Ctr = 1886.976 */ | |
546 | MT2063_AddExclZone(pAS_Info, 1884548000 - pAS_Info->f_in, 1885948000 - pAS_Info->f_in); /* Ctr = 1885.248 */ | |
547 | MT2063_AddExclZone(pAS_Info, 1882820000 - pAS_Info->f_in, 1884220000 - pAS_Info->f_in); /* Ctr = 1883.52 */ | |
548 | MT2063_AddExclZone(pAS_Info, 1881092000 - pAS_Info->f_in, 1882492000 - pAS_Info->f_in); /* Ctr = 1881.792 */ | |
549 | } | |
550 | } | |
551 | ||
54a4613f MCC |
552 | /* |
553 | * MT_ChooseFirstIF - Choose the best available 1st IF | |
554 | * If f_Desired is not excluded, choose that first. | |
555 | * Otherwise, return the value closest to f_Center that is | |
556 | * not excluded | |
557 | */ | |
bf97555e | 558 | static u32 MT2063_ChooseFirstIF(struct MT2063_AvoidSpursData_t *pAS_Info) |
0e301442 MCC |
559 | { |
560 | /* | |
54a4613f MCC |
561 | * Update "f_Desired" to be the nearest "combinational-multiple" of |
562 | * "f_LO1_Step". | |
563 | * The resulting number, F_LO1 must be a multiple of f_LO1_Step. | |
564 | * And F_LO1 is the arithmetic sum of f_in + f_Center. | |
565 | * Neither f_in, nor f_Center must be a multiple of f_LO1_Step. | |
566 | * However, the sum must be. | |
0e301442 | 567 | */ |
cfde8925 | 568 | const u32 f_Desired = |
0e301442 MCC |
569 | pAS_Info->f_LO1_Step * |
570 | ((pAS_Info->f_if1_Request + pAS_Info->f_in + | |
571 | pAS_Info->f_LO1_Step / 2) / pAS_Info->f_LO1_Step) - | |
572 | pAS_Info->f_in; | |
cfde8925 | 573 | const u32 f_Step = |
0e301442 MCC |
574 | (pAS_Info->f_LO1_Step > |
575 | pAS_Info->f_LO2_Step) ? pAS_Info->f_LO1_Step : pAS_Info-> | |
576 | f_LO2_Step; | |
cfde8925 | 577 | u32 f_Center; |
cfde8925 MCC |
578 | s32 i; |
579 | s32 j = 0; | |
580 | u32 bDesiredExcluded = 0; | |
581 | u32 bZeroExcluded = 0; | |
582 | s32 tmpMin, tmpMax; | |
583 | s32 bestDiff; | |
0e301442 MCC |
584 | struct MT2063_ExclZone_t *pNode = pAS_Info->usedZones; |
585 | struct MT2063_FIFZone_t zones[MT2063_MAX_ZONES]; | |
586 | ||
db6587bf MCC |
587 | dprintk(2, "\n"); |
588 | ||
0e301442 MCC |
589 | if (pAS_Info->nZones == 0) |
590 | return f_Desired; | |
591 | ||
54a4613f MCC |
592 | /* |
593 | * f_Center needs to be an integer multiple of f_Step away | |
594 | * from f_Desired | |
595 | */ | |
0e301442 MCC |
596 | if (pAS_Info->f_if1_Center > f_Desired) |
597 | f_Center = | |
598 | f_Desired + | |
599 | f_Step * | |
600 | ((pAS_Info->f_if1_Center - f_Desired + | |
601 | f_Step / 2) / f_Step); | |
602 | else | |
603 | f_Center = | |
604 | f_Desired - | |
605 | f_Step * | |
606 | ((f_Desired - pAS_Info->f_if1_Center + | |
607 | f_Step / 2) / f_Step); | |
608 | ||
54a4613f MCC |
609 | /* |
610 | * Take MT_ExclZones, center around f_Center and change the | |
611 | * resolution to f_Step | |
612 | */ | |
0e301442 MCC |
613 | while (pNode != NULL) { |
614 | /* floor function */ | |
615 | tmpMin = | |
cfde8925 | 616 | floor((s32) (pNode->min_ - f_Center), (s32) f_Step); |
0e301442 MCC |
617 | |
618 | /* ceil function */ | |
619 | tmpMax = | |
cfde8925 | 620 | ceil((s32) (pNode->max_ - f_Center), (s32) f_Step); |
0e301442 MCC |
621 | |
622 | if ((pNode->min_ < f_Desired) && (pNode->max_ > f_Desired)) | |
623 | bDesiredExcluded = 1; | |
624 | ||
625 | if ((tmpMin < 0) && (tmpMax > 0)) | |
626 | bZeroExcluded = 1; | |
627 | ||
628 | /* See if this zone overlaps the previous */ | |
629 | if ((j > 0) && (tmpMin < zones[j - 1].max_)) | |
630 | zones[j - 1].max_ = tmpMax; | |
631 | else { | |
632 | /* Add new zone */ | |
0e301442 MCC |
633 | zones[j].min_ = tmpMin; |
634 | zones[j].max_ = tmpMax; | |
635 | j++; | |
636 | } | |
637 | pNode = pNode->next_; | |
638 | } | |
639 | ||
640 | /* | |
54a4613f | 641 | * If the desired is okay, return with it |
0e301442 MCC |
642 | */ |
643 | if (bDesiredExcluded == 0) | |
644 | return f_Desired; | |
645 | ||
646 | /* | |
54a4613f | 647 | * If the desired is excluded and the center is okay, return with it |
0e301442 MCC |
648 | */ |
649 | if (bZeroExcluded == 0) | |
650 | return f_Center; | |
651 | ||
652 | /* Find the value closest to 0 (f_Center) */ | |
653 | bestDiff = zones[0].min_; | |
654 | for (i = 0; i < j; i++) { | |
655 | if (abs(zones[i].min_) < abs(bestDiff)) | |
656 | bestDiff = zones[i].min_; | |
657 | if (abs(zones[i].max_) < abs(bestDiff)) | |
658 | bestDiff = zones[i].max_; | |
659 | } | |
660 | ||
661 | if (bestDiff < 0) | |
cfde8925 | 662 | return f_Center - ((u32) (-bestDiff) * f_Step); |
0e301442 MCC |
663 | |
664 | return f_Center + (bestDiff * f_Step); | |
665 | } | |
666 | ||
54a4613f MCC |
667 | /** |
668 | * gcd() - Uses Euclid's algorithm | |
669 | * | |
670 | * @u, @v: Unsigned values whose GCD is desired. | |
671 | * | |
672 | * Returns THE greatest common divisor of u and v, if either value is 0, | |
673 | * the other value is returned as the result. | |
674 | */ | |
cfde8925 | 675 | static u32 MT2063_gcd(u32 u, u32 v) |
0e301442 | 676 | { |
cfde8925 | 677 | u32 r; |
0e301442 MCC |
678 | |
679 | while (v != 0) { | |
680 | r = u % v; | |
681 | u = v; | |
682 | v = r; | |
683 | } | |
684 | ||
685 | return u; | |
686 | } | |
687 | ||
54a4613f MCC |
688 | /** |
689 | * IsSpurInBand() - Checks to see if a spur will be present within the IF's | |
690 | * bandwidth. (fIFOut +/- fIFBW, -fIFOut +/- fIFBW) | |
691 | * | |
692 | * ma mb mc md | |
693 | * <--+-+-+-------------------+-------------------+-+-+--> | |
694 | * | ^ 0 ^ | | |
695 | * ^ b=-fIFOut+fIFBW/2 -b=+fIFOut-fIFBW/2 ^ | |
696 | * a=-fIFOut-fIFBW/2 -a=+fIFOut+fIFBW/2 | |
697 | * | |
698 | * Note that some equations are doubled to prevent round-off | |
699 | * problems when calculating fIFBW/2 | |
700 | * | |
701 | * @pAS_Info: Avoid Spurs information block | |
702 | * @fm: If spur, amount f_IF1 has to move negative | |
703 | * @fp: If spur, amount f_IF1 has to move positive | |
704 | * | |
705 | * Returns 1 if an LO spur would be present, otherwise 0. | |
706 | */ | |
cfde8925 | 707 | static u32 IsSpurInBand(struct MT2063_AvoidSpursData_t *pAS_Info, |
e3f94fb8 | 708 | u32 *fm, u32 * fp) |
0e301442 MCC |
709 | { |
710 | /* | |
711 | ** Calculate LO frequency settings. | |
712 | */ | |
cfde8925 MCC |
713 | u32 n, n0; |
714 | const u32 f_LO1 = pAS_Info->f_LO1; | |
715 | const u32 f_LO2 = pAS_Info->f_LO2; | |
716 | const u32 d = pAS_Info->f_out + pAS_Info->f_out_bw / 2; | |
717 | const u32 c = d - pAS_Info->f_out_bw; | |
718 | const u32 f = pAS_Info->f_zif_bw / 2; | |
d0dcc2da | 719 | const u32 f_Scale = (f_LO1 / (UINT_MAX / 2 / pAS_Info->maxH1)) + 1; |
cfde8925 MCC |
720 | s32 f_nsLO1, f_nsLO2; |
721 | s32 f_Spur; | |
722 | u32 ma, mb, mc, md, me, mf; | |
723 | u32 lo_gcd, gd_Scale, gc_Scale, gf_Scale, hgds, hgfs, hgcs; | |
db6587bf MCC |
724 | |
725 | dprintk(2, "\n"); | |
726 | ||
0e301442 MCC |
727 | *fm = 0; |
728 | ||
729 | /* | |
730 | ** For each edge (d, c & f), calculate a scale, based on the gcd | |
731 | ** of f_LO1, f_LO2 and the edge value. Use the larger of this | |
732 | ** gcd-based scale factor or f_Scale. | |
733 | */ | |
734 | lo_gcd = MT2063_gcd(f_LO1, f_LO2); | |
fd1126ca | 735 | gd_Scale = max((u32) MT2063_gcd(lo_gcd, d), f_Scale); |
0e301442 | 736 | hgds = gd_Scale / 2; |
fd1126ca | 737 | gc_Scale = max((u32) MT2063_gcd(lo_gcd, c), f_Scale); |
0e301442 | 738 | hgcs = gc_Scale / 2; |
fd1126ca | 739 | gf_Scale = max((u32) MT2063_gcd(lo_gcd, f), f_Scale); |
0e301442 MCC |
740 | hgfs = gf_Scale / 2; |
741 | ||
e930b3a0 | 742 | n0 = DIV_ROUND_UP(f_LO2 - d, f_LO1 - f_LO2); |
0e301442 MCC |
743 | |
744 | /* Check out all multiples of LO1 from n0 to m_maxLOSpurHarmonic */ | |
745 | for (n = n0; n <= pAS_Info->maxH1; ++n) { | |
746 | md = (n * ((f_LO1 + hgds) / gd_Scale) - | |
747 | ((d + hgds) / gd_Scale)) / ((f_LO2 + hgds) / gd_Scale); | |
748 | ||
749 | /* If # fLO2 harmonics > m_maxLOSpurHarmonic, then no spurs present */ | |
750 | if (md >= pAS_Info->maxH1) | |
751 | break; | |
752 | ||
753 | ma = (n * ((f_LO1 + hgds) / gd_Scale) + | |
754 | ((d + hgds) / gd_Scale)) / ((f_LO2 + hgds) / gd_Scale); | |
755 | ||
756 | /* If no spurs between +/- (f_out + f_IFBW/2), then try next harmonic */ | |
757 | if (md == ma) | |
758 | continue; | |
759 | ||
760 | mc = (n * ((f_LO1 + hgcs) / gc_Scale) - | |
761 | ((c + hgcs) / gc_Scale)) / ((f_LO2 + hgcs) / gc_Scale); | |
762 | if (mc != md) { | |
cfde8925 MCC |
763 | f_nsLO1 = (s32) (n * (f_LO1 / gc_Scale)); |
764 | f_nsLO2 = (s32) (mc * (f_LO2 / gc_Scale)); | |
0e301442 MCC |
765 | f_Spur = |
766 | (gc_Scale * (f_nsLO1 - f_nsLO2)) + | |
767 | n * (f_LO1 % gc_Scale) - mc * (f_LO2 % gc_Scale); | |
768 | ||
cfde8925 MCC |
769 | *fp = ((f_Spur - (s32) c) / (mc - n)) + 1; |
770 | *fm = (((s32) d - f_Spur) / (mc - n)) + 1; | |
0e301442 MCC |
771 | return 1; |
772 | } | |
773 | ||
774 | /* Location of Zero-IF-spur to be checked */ | |
775 | me = (n * ((f_LO1 + hgfs) / gf_Scale) + | |
776 | ((f + hgfs) / gf_Scale)) / ((f_LO2 + hgfs) / gf_Scale); | |
777 | mf = (n * ((f_LO1 + hgfs) / gf_Scale) - | |
778 | ((f + hgfs) / gf_Scale)) / ((f_LO2 + hgfs) / gf_Scale); | |
779 | if (me != mf) { | |
780 | f_nsLO1 = n * (f_LO1 / gf_Scale); | |
781 | f_nsLO2 = me * (f_LO2 / gf_Scale); | |
782 | f_Spur = | |
783 | (gf_Scale * (f_nsLO1 - f_nsLO2)) + | |
784 | n * (f_LO1 % gf_Scale) - me * (f_LO2 % gf_Scale); | |
785 | ||
cfde8925 MCC |
786 | *fp = ((f_Spur + (s32) f) / (me - n)) + 1; |
787 | *fm = (((s32) f - f_Spur) / (me - n)) + 1; | |
0e301442 MCC |
788 | return 1; |
789 | } | |
790 | ||
791 | mb = (n * ((f_LO1 + hgcs) / gc_Scale) + | |
792 | ((c + hgcs) / gc_Scale)) / ((f_LO2 + hgcs) / gc_Scale); | |
793 | if (ma != mb) { | |
794 | f_nsLO1 = n * (f_LO1 / gc_Scale); | |
795 | f_nsLO2 = ma * (f_LO2 / gc_Scale); | |
796 | f_Spur = | |
797 | (gc_Scale * (f_nsLO1 - f_nsLO2)) + | |
798 | n * (f_LO1 % gc_Scale) - ma * (f_LO2 % gc_Scale); | |
799 | ||
cfde8925 MCC |
800 | *fp = (((s32) d + f_Spur) / (ma - n)) + 1; |
801 | *fm = (-(f_Spur + (s32) c) / (ma - n)) + 1; | |
0e301442 MCC |
802 | return 1; |
803 | } | |
804 | } | |
805 | ||
0e301442 MCC |
806 | /* No spurs found */ |
807 | return 0; | |
808 | } | |
809 | ||
54a4613f MCC |
810 | /* |
811 | * MT_AvoidSpurs() - Main entry point to avoid spurs. | |
812 | * Checks for existing spurs in present LO1, LO2 freqs | |
813 | * and if present, chooses spur-free LO1, LO2 combination | |
814 | * that tunes the same input/output frequencies. | |
815 | */ | |
e3f94fb8 | 816 | static u32 MT2063_AvoidSpurs(struct MT2063_AvoidSpursData_t *pAS_Info) |
0e301442 | 817 | { |
20eb13a7 | 818 | int status = 0; |
cfde8925 | 819 | u32 fm, fp; /* restricted range on LO's */ |
0e301442 MCC |
820 | pAS_Info->bSpurAvoided = 0; |
821 | pAS_Info->nSpursFound = 0; | |
822 | ||
db6587bf MCC |
823 | dprintk(2, "\n"); |
824 | ||
0e301442 | 825 | if (pAS_Info->maxH1 == 0) |
fdf77a4f | 826 | return 0; |
0e301442 MCC |
827 | |
828 | /* | |
54a4613f MCC |
829 | * Avoid LO Generated Spurs |
830 | * | |
831 | * Make sure that have no LO-related spurs within the IF output | |
832 | * bandwidth. | |
833 | * | |
834 | * If there is an LO spur in this band, start at the current IF1 frequency | |
835 | * and work out until we find a spur-free frequency or run up against the | |
836 | * 1st IF SAW band edge. Use temporary copies of fLO1 and fLO2 so that they | |
837 | * will be unchanged if a spur-free setting is not found. | |
0e301442 MCC |
838 | */ |
839 | pAS_Info->bSpurPresent = IsSpurInBand(pAS_Info, &fm, &fp); | |
840 | if (pAS_Info->bSpurPresent) { | |
cfde8925 MCC |
841 | u32 zfIF1 = pAS_Info->f_LO1 - pAS_Info->f_in; /* current attempt at a 1st IF */ |
842 | u32 zfLO1 = pAS_Info->f_LO1; /* current attempt at an LO1 freq */ | |
843 | u32 zfLO2 = pAS_Info->f_LO2; /* current attempt at an LO2 freq */ | |
844 | u32 delta_IF1; | |
845 | u32 new_IF1; | |
0e301442 MCC |
846 | |
847 | /* | |
848 | ** Spur was found, attempt to find a spur-free 1st IF | |
849 | */ | |
850 | do { | |
851 | pAS_Info->nSpursFound++; | |
852 | ||
853 | /* Raise f_IF1_upper, if needed */ | |
854 | MT2063_AddExclZone(pAS_Info, zfIF1 - fm, zfIF1 + fp); | |
855 | ||
856 | /* Choose next IF1 that is closest to f_IF1_CENTER */ | |
857 | new_IF1 = MT2063_ChooseFirstIF(pAS_Info); | |
858 | ||
859 | if (new_IF1 > zfIF1) { | |
860 | pAS_Info->f_LO1 += (new_IF1 - zfIF1); | |
861 | pAS_Info->f_LO2 += (new_IF1 - zfIF1); | |
862 | } else { | |
863 | pAS_Info->f_LO1 -= (zfIF1 - new_IF1); | |
864 | pAS_Info->f_LO2 -= (zfIF1 - new_IF1); | |
865 | } | |
866 | zfIF1 = new_IF1; | |
867 | ||
868 | if (zfIF1 > pAS_Info->f_if1_Center) | |
869 | delta_IF1 = zfIF1 - pAS_Info->f_if1_Center; | |
870 | else | |
871 | delta_IF1 = pAS_Info->f_if1_Center - zfIF1; | |
6fb16700 MCC |
872 | |
873 | pAS_Info->bSpurPresent = IsSpurInBand(pAS_Info, &fm, &fp); | |
0e301442 | 874 | /* |
54a4613f MCC |
875 | * Continue while the new 1st IF is still within the 1st IF bandwidth |
876 | * and there is a spur in the band (again) | |
0e301442 | 877 | */ |
6fb16700 | 878 | } while ((2 * delta_IF1 + pAS_Info->f_out_bw <= pAS_Info->f_if1_bw) && pAS_Info->bSpurPresent); |
0e301442 MCC |
879 | |
880 | /* | |
54a4613f MCC |
881 | * Use the LO-spur free values found. If the search went all |
882 | * the way to the 1st IF band edge and always found spurs, just | |
883 | * leave the original choice. It's as "good" as any other. | |
0e301442 MCC |
884 | */ |
885 | if (pAS_Info->bSpurPresent == 1) { | |
886 | status |= MT2063_SPUR_PRESENT_ERR; | |
887 | pAS_Info->f_LO1 = zfLO1; | |
888 | pAS_Info->f_LO2 = zfLO2; | |
889 | } else | |
890 | pAS_Info->bSpurAvoided = 1; | |
891 | } | |
892 | ||
893 | status |= | |
894 | ((pAS_Info-> | |
895 | nSpursFound << MT2063_SPUR_SHIFT) & MT2063_SPUR_CNT_MASK); | |
896 | ||
6fb16700 | 897 | return status; |
0e301442 MCC |
898 | } |
899 | ||
0e301442 | 900 | /* |
66aea30d MCC |
901 | * Constants used by the tuning algorithm |
902 | */ | |
0e301442 MCC |
903 | #define MT2063_REF_FREQ (16000000UL) /* Reference oscillator Frequency (in Hz) */ |
904 | #define MT2063_IF1_BW (22000000UL) /* The IF1 filter bandwidth (in Hz) */ | |
905 | #define MT2063_TUNE_STEP_SIZE (50000UL) /* Tune in steps of 50 kHz */ | |
906 | #define MT2063_SPUR_STEP_HZ (250000UL) /* Step size (in Hz) to move IF1 when avoiding spurs */ | |
907 | #define MT2063_ZIF_BW (2000000UL) /* Zero-IF spur-free bandwidth (in Hz) */ | |
908 | #define MT2063_MAX_HARMONICS_1 (15UL) /* Highest intra-tuner LO Spur Harmonic to be avoided */ | |
909 | #define MT2063_MAX_HARMONICS_2 (5UL) /* Highest inter-tuner LO Spur Harmonic to be avoided */ | |
910 | #define MT2063_MIN_LO_SEP (1000000UL) /* Minimum inter-tuner LO frequency separation */ | |
911 | #define MT2063_LO1_FRACN_AVOID (0UL) /* LO1 FracN numerator avoid region (in Hz) */ | |
912 | #define MT2063_LO2_FRACN_AVOID (199999UL) /* LO2 FracN numerator avoid region (in Hz) */ | |
913 | #define MT2063_MIN_FIN_FREQ (44000000UL) /* Minimum input frequency (in Hz) */ | |
914 | #define MT2063_MAX_FIN_FREQ (1100000000UL) /* Maximum input frequency (in Hz) */ | |
915 | #define MT2063_MIN_FOUT_FREQ (36000000UL) /* Minimum output frequency (in Hz) */ | |
916 | #define MT2063_MAX_FOUT_FREQ (57000000UL) /* Maximum output frequency (in Hz) */ | |
917 | #define MT2063_MIN_DNC_FREQ (1293000000UL) /* Minimum LO2 frequency (in Hz) */ | |
918 | #define MT2063_MAX_DNC_FREQ (1614000000UL) /* Maximum LO2 frequency (in Hz) */ | |
919 | #define MT2063_MIN_UPC_FREQ (1396000000UL) /* Minimum LO1 frequency (in Hz) */ | |
920 | #define MT2063_MAX_UPC_FREQ (2750000000UL) /* Maximum LO1 frequency (in Hz) */ | |
921 | ||
922 | /* | |
54a4613f MCC |
923 | * Define the supported Part/Rev codes for the MT2063 |
924 | */ | |
0e301442 MCC |
925 | #define MT2063_B0 (0x9B) |
926 | #define MT2063_B1 (0x9C) | |
927 | #define MT2063_B2 (0x9D) | |
928 | #define MT2063_B3 (0x9E) | |
929 | ||
31e67fae MCC |
930 | /** |
931 | * mt2063_lockStatus - Checks to see if LO1 and LO2 are locked | |
932 | * | |
933 | * @state: struct mt2063_state pointer | |
934 | * | |
935 | * This function returns 0, if no lock, 1 if locked and a value < 1 if error | |
936 | */ | |
20eb13a7 | 937 | static int mt2063_lockStatus(struct mt2063_state *state) |
0e301442 | 938 | { |
cfde8925 MCC |
939 | const u32 nMaxWait = 100; /* wait a maximum of 100 msec */ |
940 | const u32 nPollRate = 2; /* poll status bits every 2 ms */ | |
941 | const u32 nMaxLoops = nMaxWait / nPollRate; | |
942 | const u8 LO1LK = 0x80; | |
943 | u8 LO2LK = 0x08; | |
20eb13a7 | 944 | int status; |
cfde8925 | 945 | u32 nDelays = 0; |
0e301442 | 946 | |
db6587bf MCC |
947 | dprintk(2, "\n"); |
948 | ||
0e301442 | 949 | /* LO2 Lock bit was in a different place for B0 version */ |
dcd52d20 | 950 | if (state->tuner_id == MT2063_B0) |
0e301442 MCC |
951 | LO2LK = 0x40; |
952 | ||
953 | do { | |
31e67fae MCC |
954 | status = mt2063_read(state, MT2063_REG_LO_STATUS, |
955 | &state->reg[MT2063_REG_LO_STATUS], 1); | |
0e301442 | 956 | |
fdf77a4f | 957 | if (status < 0) |
31e67fae | 958 | return status; |
0e301442 | 959 | |
dcd52d20 | 960 | if ((state->reg[MT2063_REG_LO_STATUS] & (LO1LK | LO2LK)) == |
0e301442 | 961 | (LO1LK | LO2LK)) { |
31e67fae | 962 | return TUNER_STATUS_LOCKED | TUNER_STATUS_STEREO; |
0e301442 | 963 | } |
bf97555e | 964 | msleep(nPollRate); /* Wait between retries */ |
6fb16700 | 965 | } while (++nDelays < nMaxLoops); |
0e301442 | 966 | |
31e67fae MCC |
967 | /* |
968 | * Got no lock or partial lock | |
969 | */ | |
970 | return 0; | |
0e301442 MCC |
971 | } |
972 | ||
8fdb226e MCC |
973 | /* |
974 | * Constants for setting receiver modes. | |
975 | * (6 modes defined at this time, enumerated by mt2063_delivery_sys) | |
976 | * (DNC1GC & DNC2GC are the values, which are used, when the specific | |
977 | * DNC Output is selected, the other is always off) | |
978 | * | |
979 | * enum mt2063_delivery_sys | |
980 | * -------------+---------------------------------------------- | |
981 | * Mode 0 : | MT2063_CABLE_QAM | |
982 | * Mode 1 : | MT2063_CABLE_ANALOG | |
983 | * Mode 2 : | MT2063_OFFAIR_COFDM | |
984 | * Mode 3 : | MT2063_OFFAIR_COFDM_SAWLESS | |
985 | * Mode 4 : | MT2063_OFFAIR_ANALOG | |
986 | * Mode 5 : | MT2063_OFFAIR_8VSB | |
987 | * --------------+---------------------------------------------- | |
988 | * | |
989 | * |<---------- Mode -------------->| | |
990 | * Reg Field | 0 | 1 | 2 | 3 | 4 | 5 | | |
991 | * ------------+-----+-----+-----+-----+-----+-----+ | |
992 | * RFAGCen | OFF | OFF | OFF | OFF | OFF | OFF | |
993 | * LNARin | 0 | 0 | 3 | 3 | 3 | 3 | |
994 | * FIFFQen | 1 | 1 | 1 | 1 | 1 | 1 | |
995 | * FIFFq | 0 | 0 | 0 | 0 | 0 | 0 | |
996 | * DNC1gc | 0 | 0 | 0 | 0 | 0 | 0 | |
997 | * DNC2gc | 0 | 0 | 0 | 0 | 0 | 0 | |
998 | * GCU Auto | 1 | 1 | 1 | 1 | 1 | 1 | |
999 | * LNA max Atn | 31 | 31 | 31 | 31 | 31 | 31 | |
1000 | * LNA Target | 44 | 43 | 43 | 43 | 43 | 43 | |
1001 | * ign RF Ovl | 0 | 0 | 0 | 0 | 0 | 0 | |
1002 | * RF max Atn | 31 | 31 | 31 | 31 | 31 | 31 | |
1003 | * PD1 Target | 36 | 36 | 38 | 38 | 36 | 38 | |
1004 | * ign FIF Ovl | 0 | 0 | 0 | 0 | 0 | 0 | |
1005 | * FIF max Atn | 5 | 5 | 5 | 5 | 5 | 5 | |
1006 | * PD2 Target | 40 | 33 | 42 | 42 | 33 | 42 | |
1007 | */ | |
1008 | ||
1009 | enum mt2063_delivery_sys { | |
b52e7c76 MCC |
1010 | MT2063_CABLE_QAM = 0, |
1011 | MT2063_CABLE_ANALOG, | |
1012 | MT2063_OFFAIR_COFDM, | |
1013 | MT2063_OFFAIR_COFDM_SAWLESS, | |
1014 | MT2063_OFFAIR_ANALOG, | |
1015 | MT2063_OFFAIR_8VSB, | |
8fdb226e MCC |
1016 | MT2063_NUM_RCVR_MODES |
1017 | }; | |
1018 | ||
b52e7c76 MCC |
1019 | static const char *mt2063_mode_name[] = { |
1020 | [MT2063_CABLE_QAM] = "digital cable", | |
1021 | [MT2063_CABLE_ANALOG] = "analog cable", | |
1022 | [MT2063_OFFAIR_COFDM] = "digital offair", | |
1023 | [MT2063_OFFAIR_COFDM_SAWLESS] = "digital offair without SAW", | |
1024 | [MT2063_OFFAIR_ANALOG] = "analog offair", | |
1025 | [MT2063_OFFAIR_8VSB] = "analog offair 8vsb", | |
1026 | }; | |
1027 | ||
1028 | static const u8 RFAGCEN[] = { 0, 0, 0, 0, 0, 0 }; | |
1029 | static const u8 LNARIN[] = { 0, 0, 3, 3, 3, 3 }; | |
1030 | static const u8 FIFFQEN[] = { 1, 1, 1, 1, 1, 1 }; | |
1031 | static const u8 FIFFQ[] = { 0, 0, 0, 0, 0, 0 }; | |
1032 | static const u8 DNC1GC[] = { 0, 0, 0, 0, 0, 0 }; | |
1033 | static const u8 DNC2GC[] = { 0, 0, 0, 0, 0, 0 }; | |
1034 | static const u8 ACLNAMAX[] = { 31, 31, 31, 31, 31, 31 }; | |
1035 | static const u8 LNATGT[] = { 44, 43, 43, 43, 43, 43 }; | |
1036 | static const u8 RFOVDIS[] = { 0, 0, 0, 0, 0, 0 }; | |
1037 | static const u8 ACRFMAX[] = { 31, 31, 31, 31, 31, 31 }; | |
1038 | static const u8 PD1TGT[] = { 36, 36, 38, 38, 36, 38 }; | |
1039 | static const u8 FIFOVDIS[] = { 0, 0, 0, 0, 0, 0 }; | |
1040 | static const u8 ACFIFMAX[] = { 29, 29, 29, 29, 29, 29 }; | |
1041 | static const u8 PD2TGT[] = { 40, 33, 38, 42, 30, 38 }; | |
8fdb226e | 1042 | |
4713e225 MCC |
1043 | /* |
1044 | * mt2063_set_dnc_output_enable() | |
1045 | */ | |
1046 | static u32 mt2063_get_dnc_output_enable(struct mt2063_state *state, | |
6fb16700 | 1047 | enum MT2063_DNC_Output_Enable *pValue) |
0e301442 | 1048 | { |
db6587bf MCC |
1049 | dprintk(2, "\n"); |
1050 | ||
4713e225 MCC |
1051 | if ((state->reg[MT2063_REG_DNC_GAIN] & 0x03) == 0x03) { /* if DNC1 is off */ |
1052 | if ((state->reg[MT2063_REG_VGA_GAIN] & 0x03) == 0x03) /* if DNC2 is off */ | |
1053 | *pValue = MT2063_DNC_NONE; | |
1054 | else | |
1055 | *pValue = MT2063_DNC_2; | |
1056 | } else { /* DNC1 is on */ | |
1057 | if ((state->reg[MT2063_REG_VGA_GAIN] & 0x03) == 0x03) /* if DNC2 is off */ | |
1058 | *pValue = MT2063_DNC_1; | |
1059 | else | |
1060 | *pValue = MT2063_DNC_BOTH; | |
1061 | } | |
1062 | return 0; | |
1063 | } | |
0e301442 | 1064 | |
4713e225 MCC |
1065 | /* |
1066 | * mt2063_set_dnc_output_enable() | |
1067 | */ | |
1068 | static u32 mt2063_set_dnc_output_enable(struct mt2063_state *state, | |
6fb16700 | 1069 | enum MT2063_DNC_Output_Enable nValue) |
4713e225 | 1070 | { |
20eb13a7 | 1071 | int status = 0; /* Status to be returned */ |
4713e225 | 1072 | u8 val = 0; |
51f0f7b3 | 1073 | |
db6587bf MCC |
1074 | dprintk(2, "\n"); |
1075 | ||
4713e225 MCC |
1076 | /* selects, which DNC output is used */ |
1077 | switch (nValue) { | |
1078 | case MT2063_DNC_NONE: | |
54a4613f MCC |
1079 | val = (state->reg[MT2063_REG_DNC_GAIN] & 0xFC) | 0x03; /* Set DNC1GC=3 */ |
1080 | if (state->reg[MT2063_REG_DNC_GAIN] != | |
1081 | val) | |
1082 | status |= | |
1083 | mt2063_setreg(state, | |
1084 | MT2063_REG_DNC_GAIN, | |
1085 | val); | |
51f0f7b3 | 1086 | |
54a4613f MCC |
1087 | val = (state->reg[MT2063_REG_VGA_GAIN] & 0xFC) | 0x03; /* Set DNC2GC=3 */ |
1088 | if (state->reg[MT2063_REG_VGA_GAIN] != | |
1089 | val) | |
1090 | status |= | |
1091 | mt2063_setreg(state, | |
1092 | MT2063_REG_VGA_GAIN, | |
1093 | val); | |
51f0f7b3 | 1094 | |
54a4613f MCC |
1095 | val = (state->reg[MT2063_REG_RSVD_20] & ~0x40); /* Set PD2MUX=0 */ |
1096 | if (state->reg[MT2063_REG_RSVD_20] != | |
1097 | val) | |
1098 | status |= | |
1099 | mt2063_setreg(state, | |
1100 | MT2063_REG_RSVD_20, | |
1101 | val); | |
51f0f7b3 | 1102 | |
54a4613f | 1103 | break; |
4713e225 | 1104 | case MT2063_DNC_1: |
54a4613f MCC |
1105 | val = (state->reg[MT2063_REG_DNC_GAIN] & 0xFC) | (DNC1GC[state->rcvr_mode] & 0x03); /* Set DNC1GC=x */ |
1106 | if (state->reg[MT2063_REG_DNC_GAIN] != | |
1107 | val) | |
1108 | status |= | |
1109 | mt2063_setreg(state, | |
1110 | MT2063_REG_DNC_GAIN, | |
1111 | val); | |
51f0f7b3 | 1112 | |
54a4613f MCC |
1113 | val = (state->reg[MT2063_REG_VGA_GAIN] & 0xFC) | 0x03; /* Set DNC2GC=3 */ |
1114 | if (state->reg[MT2063_REG_VGA_GAIN] != | |
1115 | val) | |
1116 | status |= | |
1117 | mt2063_setreg(state, | |
1118 | MT2063_REG_VGA_GAIN, | |
1119 | val); | |
51f0f7b3 | 1120 | |
54a4613f MCC |
1121 | val = (state->reg[MT2063_REG_RSVD_20] & ~0x40); /* Set PD2MUX=0 */ |
1122 | if (state->reg[MT2063_REG_RSVD_20] != | |
1123 | val) | |
1124 | status |= | |
1125 | mt2063_setreg(state, | |
1126 | MT2063_REG_RSVD_20, | |
1127 | val); | |
51f0f7b3 | 1128 | |
54a4613f | 1129 | break; |
4713e225 | 1130 | case MT2063_DNC_2: |
54a4613f MCC |
1131 | val = (state->reg[MT2063_REG_DNC_GAIN] & 0xFC) | 0x03; /* Set DNC1GC=3 */ |
1132 | if (state->reg[MT2063_REG_DNC_GAIN] != | |
1133 | val) | |
1134 | status |= | |
1135 | mt2063_setreg(state, | |
1136 | MT2063_REG_DNC_GAIN, | |
1137 | val); | |
51f0f7b3 | 1138 | |
54a4613f MCC |
1139 | val = (state->reg[MT2063_REG_VGA_GAIN] & 0xFC) | (DNC2GC[state->rcvr_mode] & 0x03); /* Set DNC2GC=x */ |
1140 | if (state->reg[MT2063_REG_VGA_GAIN] != | |
1141 | val) | |
1142 | status |= | |
1143 | mt2063_setreg(state, | |
1144 | MT2063_REG_VGA_GAIN, | |
1145 | val); | |
fdf77a4f | 1146 | |
54a4613f MCC |
1147 | val = (state->reg[MT2063_REG_RSVD_20] | 0x40); /* Set PD2MUX=1 */ |
1148 | if (state->reg[MT2063_REG_RSVD_20] != | |
1149 | val) | |
1150 | status |= | |
1151 | mt2063_setreg(state, | |
1152 | MT2063_REG_RSVD_20, | |
1153 | val); | |
51f0f7b3 | 1154 | |
54a4613f | 1155 | break; |
4713e225 | 1156 | case MT2063_DNC_BOTH: |
54a4613f MCC |
1157 | val = (state->reg[MT2063_REG_DNC_GAIN] & 0xFC) | (DNC1GC[state->rcvr_mode] & 0x03); /* Set DNC1GC=x */ |
1158 | if (state->reg[MT2063_REG_DNC_GAIN] != | |
1159 | val) | |
1160 | status |= | |
1161 | mt2063_setreg(state, | |
1162 | MT2063_REG_DNC_GAIN, | |
1163 | val); | |
51f0f7b3 | 1164 | |
54a4613f MCC |
1165 | val = (state->reg[MT2063_REG_VGA_GAIN] & 0xFC) | (DNC2GC[state->rcvr_mode] & 0x03); /* Set DNC2GC=x */ |
1166 | if (state->reg[MT2063_REG_VGA_GAIN] != | |
1167 | val) | |
1168 | status |= | |
1169 | mt2063_setreg(state, | |
1170 | MT2063_REG_VGA_GAIN, | |
1171 | val); | |
51f0f7b3 | 1172 | |
54a4613f MCC |
1173 | val = (state->reg[MT2063_REG_RSVD_20] | 0x40); /* Set PD2MUX=1 */ |
1174 | if (state->reg[MT2063_REG_RSVD_20] != | |
1175 | val) | |
1176 | status |= | |
1177 | mt2063_setreg(state, | |
1178 | MT2063_REG_RSVD_20, | |
1179 | val); | |
51f0f7b3 | 1180 | |
54a4613f | 1181 | break; |
51f0f7b3 | 1182 | default: |
4713e225 | 1183 | break; |
51f0f7b3 | 1184 | } |
0e301442 | 1185 | |
6fb16700 | 1186 | return status; |
0e301442 MCC |
1187 | } |
1188 | ||
54a4613f | 1189 | /* |
8fdb226e MCC |
1190 | * MT2063_SetReceiverMode() - Set the MT2063 receiver mode, according with |
1191 | * the selected enum mt2063_delivery_sys type. | |
1192 | * | |
54a4613f MCC |
1193 | * (DNC1GC & DNC2GC are the values, which are used, when the specific |
1194 | * DNC Output is selected, the other is always off) | |
1195 | * | |
54a4613f | 1196 | * @state: ptr to mt2063_state structure |
39c1cb2b | 1197 | * @Mode: desired receiver delivery system |
54a4613f MCC |
1198 | * |
1199 | * Note: Register cache must be valid for it to work | |
1200 | */ | |
1201 | ||
dcd52d20 | 1202 | static u32 MT2063_SetReceiverMode(struct mt2063_state *state, |
8fdb226e | 1203 | enum mt2063_delivery_sys Mode) |
0e301442 | 1204 | { |
20eb13a7 | 1205 | int status = 0; /* Status to be returned */ |
cfde8925 MCC |
1206 | u8 val; |
1207 | u32 longval; | |
0e301442 | 1208 | |
db6587bf MCC |
1209 | dprintk(2, "\n"); |
1210 | ||
0e301442 | 1211 | if (Mode >= MT2063_NUM_RCVR_MODES) |
fdf77a4f | 1212 | status = -ERANGE; |
0e301442 MCC |
1213 | |
1214 | /* RFAGCen */ | |
fdf77a4f | 1215 | if (status >= 0) { |
0e301442 | 1216 | val = |
dcd52d20 | 1217 | (state-> |
fe10b84e | 1218 | reg[MT2063_REG_PD1_TGT] & ~0x40) | (RFAGCEN[Mode] |
0e301442 MCC |
1219 | ? 0x40 : |
1220 | 0x00); | |
6fb16700 | 1221 | if (state->reg[MT2063_REG_PD1_TGT] != val) |
8294e3ed | 1222 | status |= mt2063_setreg(state, MT2063_REG_PD1_TGT, val); |
0e301442 MCC |
1223 | } |
1224 | ||
1225 | /* LNARin */ | |
fdf77a4f | 1226 | if (status >= 0) { |
fe10b84e | 1227 | u8 val = (state->reg[MT2063_REG_CTRL_2C] & ~0x03) | |
4713e225 MCC |
1228 | (LNARIN[Mode] & 0x03); |
1229 | if (state->reg[MT2063_REG_CTRL_2C] != val) | |
6fb16700 | 1230 | status |= mt2063_setreg(state, MT2063_REG_CTRL_2C, val); |
0e301442 MCC |
1231 | } |
1232 | ||
1233 | /* FIFFQEN and FIFFQ */ | |
fdf77a4f | 1234 | if (status >= 0) { |
0e301442 | 1235 | val = |
dcd52d20 | 1236 | (state-> |
fe10b84e | 1237 | reg[MT2063_REG_FIFF_CTRL2] & ~0xF0) | |
0e301442 | 1238 | (FIFFQEN[Mode] << 7) | (FIFFQ[Mode] << 4); |
dcd52d20 | 1239 | if (state->reg[MT2063_REG_FIFF_CTRL2] != val) { |
0e301442 | 1240 | status |= |
8294e3ed | 1241 | mt2063_setreg(state, MT2063_REG_FIFF_CTRL2, val); |
0e301442 MCC |
1242 | /* trigger FIFF calibration, needed after changing FIFFQ */ |
1243 | val = | |
fe10b84e | 1244 | (state->reg[MT2063_REG_FIFF_CTRL] | 0x01); |
0e301442 | 1245 | status |= |
8294e3ed | 1246 | mt2063_setreg(state, MT2063_REG_FIFF_CTRL, val); |
0e301442 | 1247 | val = |
dcd52d20 | 1248 | (state-> |
fe10b84e | 1249 | reg[MT2063_REG_FIFF_CTRL] & ~0x01); |
0e301442 | 1250 | status |= |
8294e3ed | 1251 | mt2063_setreg(state, MT2063_REG_FIFF_CTRL, val); |
0e301442 MCC |
1252 | } |
1253 | } | |
1254 | ||
1255 | /* DNC1GC & DNC2GC */ | |
4713e225 MCC |
1256 | status |= mt2063_get_dnc_output_enable(state, &longval); |
1257 | status |= mt2063_set_dnc_output_enable(state, longval); | |
0e301442 MCC |
1258 | |
1259 | /* acLNAmax */ | |
fdf77a4f | 1260 | if (status >= 0) { |
fe10b84e | 1261 | u8 val = (state->reg[MT2063_REG_LNA_OV] & ~0x1F) | |
4713e225 MCC |
1262 | (ACLNAMAX[Mode] & 0x1F); |
1263 | if (state->reg[MT2063_REG_LNA_OV] != val) | |
8294e3ed | 1264 | status |= mt2063_setreg(state, MT2063_REG_LNA_OV, val); |
0e301442 MCC |
1265 | } |
1266 | ||
1267 | /* LNATGT */ | |
fdf77a4f | 1268 | if (status >= 0) { |
fe10b84e | 1269 | u8 val = (state->reg[MT2063_REG_LNA_TGT] & ~0x3F) | |
4713e225 MCC |
1270 | (LNATGT[Mode] & 0x3F); |
1271 | if (state->reg[MT2063_REG_LNA_TGT] != val) | |
8294e3ed | 1272 | status |= mt2063_setreg(state, MT2063_REG_LNA_TGT, val); |
0e301442 MCC |
1273 | } |
1274 | ||
1275 | /* ACRF */ | |
fdf77a4f | 1276 | if (status >= 0) { |
fe10b84e | 1277 | u8 val = (state->reg[MT2063_REG_RF_OV] & ~0x1F) | |
6fb16700 | 1278 | (ACRFMAX[Mode] & 0x1F); |
4713e225 | 1279 | if (state->reg[MT2063_REG_RF_OV] != val) |
8294e3ed | 1280 | status |= mt2063_setreg(state, MT2063_REG_RF_OV, val); |
0e301442 MCC |
1281 | } |
1282 | ||
1283 | /* PD1TGT */ | |
fdf77a4f | 1284 | if (status >= 0) { |
fe10b84e | 1285 | u8 val = (state->reg[MT2063_REG_PD1_TGT] & ~0x3F) | |
4713e225 MCC |
1286 | (PD1TGT[Mode] & 0x3F); |
1287 | if (state->reg[MT2063_REG_PD1_TGT] != val) | |
8294e3ed | 1288 | status |= mt2063_setreg(state, MT2063_REG_PD1_TGT, val); |
0e301442 MCC |
1289 | } |
1290 | ||
1291 | /* FIFATN */ | |
fdf77a4f | 1292 | if (status >= 0) { |
4713e225 MCC |
1293 | u8 val = ACFIFMAX[Mode]; |
1294 | if (state->reg[MT2063_REG_PART_REV] != MT2063_B3 && val > 5) | |
1295 | val = 5; | |
fe10b84e | 1296 | val = (state->reg[MT2063_REG_FIF_OV] & ~0x1F) | |
4713e225 | 1297 | (val & 0x1F); |
6fb16700 | 1298 | if (state->reg[MT2063_REG_FIF_OV] != val) |
8294e3ed | 1299 | status |= mt2063_setreg(state, MT2063_REG_FIF_OV, val); |
0e301442 MCC |
1300 | } |
1301 | ||
1302 | /* PD2TGT */ | |
fdf77a4f | 1303 | if (status >= 0) { |
fe10b84e | 1304 | u8 val = (state->reg[MT2063_REG_PD2_TGT] & ~0x3F) | |
4713e225 MCC |
1305 | (PD2TGT[Mode] & 0x3F); |
1306 | if (state->reg[MT2063_REG_PD2_TGT] != val) | |
8294e3ed | 1307 | status |= mt2063_setreg(state, MT2063_REG_PD2_TGT, val); |
0e301442 MCC |
1308 | } |
1309 | ||
1310 | /* Ignore ATN Overload */ | |
fdf77a4f | 1311 | if (status >= 0) { |
fe10b84e | 1312 | val = (state->reg[MT2063_REG_LNA_TGT] & ~0x80) | |
6fb16700 MCC |
1313 | (RFOVDIS[Mode] ? 0x80 : 0x00); |
1314 | if (state->reg[MT2063_REG_LNA_TGT] != val) | |
8294e3ed | 1315 | status |= mt2063_setreg(state, MT2063_REG_LNA_TGT, val); |
0e301442 MCC |
1316 | } |
1317 | ||
1318 | /* Ignore FIF Overload */ | |
fdf77a4f | 1319 | if (status >= 0) { |
fe10b84e | 1320 | val = (state->reg[MT2063_REG_PD1_TGT] & ~0x80) | |
6fb16700 MCC |
1321 | (FIFOVDIS[Mode] ? 0x80 : 0x00); |
1322 | if (state->reg[MT2063_REG_PD1_TGT] != val) | |
8294e3ed | 1323 | status |= mt2063_setreg(state, MT2063_REG_PD1_TGT, val); |
0e301442 MCC |
1324 | } |
1325 | ||
b52e7c76 | 1326 | if (status >= 0) { |
dcd52d20 | 1327 | state->rcvr_mode = Mode; |
b52e7c76 MCC |
1328 | dprintk(1, "mt2063 mode changed to %s\n", |
1329 | mt2063_mode_name[state->rcvr_mode]); | |
1330 | } | |
0e301442 | 1331 | |
6fb16700 | 1332 | return status; |
0e301442 MCC |
1333 | } |
1334 | ||
54a4613f MCC |
1335 | /* |
1336 | * MT2063_ClearPowerMaskBits () - Clears the power-down mask bits for various | |
1337 | * sections of the MT2063 | |
1338 | * | |
1339 | * @Bits: Mask bits to be cleared. | |
1340 | * | |
1341 | * See definition of MT2063_Mask_Bits type for description | |
1342 | * of each of the power bits. | |
1343 | */ | |
e3f94fb8 MCC |
1344 | static u32 MT2063_ClearPowerMaskBits(struct mt2063_state *state, |
1345 | enum MT2063_Mask_Bits Bits) | |
0e301442 | 1346 | { |
20eb13a7 | 1347 | int status = 0; |
0e301442 | 1348 | |
db6587bf | 1349 | dprintk(2, "\n"); |
fdf77a4f MCC |
1350 | Bits = (enum MT2063_Mask_Bits)(Bits & MT2063_ALL_SD); /* Only valid bits for this tuner */ |
1351 | if ((Bits & 0xFF00) != 0) { | |
dcd52d20 | 1352 | state->reg[MT2063_REG_PWR_2] &= ~(u8) (Bits >> 8); |
fdf77a4f | 1353 | status |= |
e1de3d18 | 1354 | mt2063_write(state, |
fdf77a4f | 1355 | MT2063_REG_PWR_2, |
dcd52d20 | 1356 | &state->reg[MT2063_REG_PWR_2], 1); |
fdf77a4f MCC |
1357 | } |
1358 | if ((Bits & 0xFF) != 0) { | |
dcd52d20 | 1359 | state->reg[MT2063_REG_PWR_1] &= ~(u8) (Bits & 0xFF); |
fdf77a4f | 1360 | status |= |
e1de3d18 | 1361 | mt2063_write(state, |
fdf77a4f | 1362 | MT2063_REG_PWR_1, |
dcd52d20 | 1363 | &state->reg[MT2063_REG_PWR_1], 1); |
0e301442 MCC |
1364 | } |
1365 | ||
6fb16700 | 1366 | return status; |
0e301442 MCC |
1367 | } |
1368 | ||
54a4613f MCC |
1369 | /* |
1370 | * MT2063_SoftwareShutdown() - Enables or disables software shutdown function. | |
1371 | * When Shutdown is 1, any section whose power | |
1372 | * mask is set will be shutdown. | |
1373 | */ | |
dcd52d20 | 1374 | static u32 MT2063_SoftwareShutdown(struct mt2063_state *state, u8 Shutdown) |
0e301442 | 1375 | { |
20eb13a7 | 1376 | int status; |
0e301442 | 1377 | |
db6587bf | 1378 | dprintk(2, "\n"); |
fdf77a4f | 1379 | if (Shutdown == 1) |
54a4613f | 1380 | state->reg[MT2063_REG_PWR_1] |= 0x04; |
fdf77a4f | 1381 | else |
54a4613f | 1382 | state->reg[MT2063_REG_PWR_1] &= ~0x04; |
0e301442 | 1383 | |
31e67fae | 1384 | status = mt2063_write(state, |
fdf77a4f | 1385 | MT2063_REG_PWR_1, |
dcd52d20 | 1386 | &state->reg[MT2063_REG_PWR_1], 1); |
fdf77a4f MCC |
1387 | |
1388 | if (Shutdown != 1) { | |
dcd52d20 MCC |
1389 | state->reg[MT2063_REG_BYP_CTRL] = |
1390 | (state->reg[MT2063_REG_BYP_CTRL] & 0x9F) | 0x40; | |
0e301442 | 1391 | status |= |
e1de3d18 | 1392 | mt2063_write(state, |
fdf77a4f | 1393 | MT2063_REG_BYP_CTRL, |
dcd52d20 | 1394 | &state->reg[MT2063_REG_BYP_CTRL], |
fdf77a4f | 1395 | 1); |
dcd52d20 MCC |
1396 | state->reg[MT2063_REG_BYP_CTRL] = |
1397 | (state->reg[MT2063_REG_BYP_CTRL] & 0x9F); | |
fdf77a4f | 1398 | status |= |
e1de3d18 | 1399 | mt2063_write(state, |
fdf77a4f | 1400 | MT2063_REG_BYP_CTRL, |
dcd52d20 | 1401 | &state->reg[MT2063_REG_BYP_CTRL], |
fdf77a4f | 1402 | 1); |
0e301442 MCC |
1403 | } |
1404 | ||
31e67fae | 1405 | return status; |
0e301442 MCC |
1406 | } |
1407 | ||
cfde8925 | 1408 | static u32 MT2063_Round_fLO(u32 f_LO, u32 f_LO_Step, u32 f_ref) |
0e301442 MCC |
1409 | { |
1410 | return f_ref * (f_LO / f_ref) | |
1411 | + f_LO_Step * (((f_LO % f_ref) + (f_LO_Step / 2)) / f_LO_Step); | |
1412 | } | |
1413 | ||
54a4613f MCC |
1414 | /** |
1415 | * fLO_FractionalTerm() - Calculates the portion contributed by FracN / denom. | |
1416 | * This function preserves maximum precision without | |
1417 | * risk of overflow. It accurately calculates | |
1418 | * f_ref * num / denom to within 1 HZ with fixed math. | |
1419 | * | |
1420 | * @num : Fractional portion of the multiplier | |
1421 | * @denom: denominator portion of the ratio | |
1422 | * @f_Ref: SRO frequency. | |
1423 | * | |
1424 | * This calculation handles f_ref as two separate 14-bit fields. | |
1425 | * Therefore, a maximum value of 2^28-1 may safely be used for f_ref. | |
1426 | * This is the genesis of the magic number "14" and the magic mask value of | |
1427 | * 0x03FFF. | |
1428 | * | |
1429 | * This routine successfully handles denom values up to and including 2^18. | |
1430 | * Returns: f_ref * num / denom | |
1431 | */ | |
e3f94fb8 | 1432 | static u32 MT2063_fLO_FractionalTerm(u32 f_ref, u32 num, u32 denom) |
0e301442 | 1433 | { |
cfde8925 MCC |
1434 | u32 t1 = (f_ref >> 14) * num; |
1435 | u32 term1 = t1 / denom; | |
1436 | u32 loss = t1 % denom; | |
1437 | u32 term2 = | |
0e301442 | 1438 | (((f_ref & 0x00003FFF) * num + (loss << 14)) + (denom / 2)) / denom; |
6fb16700 | 1439 | return (term1 << 14) + term2; |
0e301442 MCC |
1440 | } |
1441 | ||
54a4613f MCC |
1442 | /* |
1443 | * CalcLO1Mult()- Calculates Integer divider value and the numerator | |
1444 | * value for a FracN PLL. | |
1445 | * | |
1446 | * This function assumes that the f_LO and f_Ref are | |
1447 | * evenly divisible by f_LO_Step. | |
1448 | * | |
1449 | * @Div: OUTPUT: Whole number portion of the multiplier | |
1450 | * @FracN: OUTPUT: Fractional portion of the multiplier | |
1451 | * @f_LO: desired LO frequency. | |
1452 | * @f_LO_Step: Minimum step size for the LO (in Hz). | |
1453 | * @f_Ref: SRO frequency. | |
1454 | * @f_Avoid: Range of PLL frequencies to avoid near integer multiples | |
1455 | * of f_Ref (in Hz). | |
1456 | * | |
1457 | * Returns: Recalculated LO frequency. | |
1458 | */ | |
6fb16700 MCC |
1459 | static u32 MT2063_CalcLO1Mult(u32 *Div, |
1460 | u32 *FracN, | |
e3f94fb8 MCC |
1461 | u32 f_LO, |
1462 | u32 f_LO_Step, u32 f_Ref) | |
0e301442 MCC |
1463 | { |
1464 | /* Calculate the whole number portion of the divider */ | |
1465 | *Div = f_LO / f_Ref; | |
1466 | ||
1467 | /* Calculate the numerator value (round to nearest f_LO_Step) */ | |
1468 | *FracN = | |
1469 | (64 * (((f_LO % f_Ref) + (f_LO_Step / 2)) / f_LO_Step) + | |
1470 | (f_Ref / f_LO_Step / 2)) / (f_Ref / f_LO_Step); | |
1471 | ||
1472 | return (f_Ref * (*Div)) + MT2063_fLO_FractionalTerm(f_Ref, *FracN, 64); | |
1473 | } | |
1474 | ||
54a4613f MCC |
1475 | /** |
1476 | * CalcLO2Mult() - Calculates Integer divider value and the numerator | |
1477 | * value for a FracN PLL. | |
1478 | * | |
1479 | * This function assumes that the f_LO and f_Ref are | |
1480 | * evenly divisible by f_LO_Step. | |
1481 | * | |
1482 | * @Div: OUTPUT: Whole number portion of the multiplier | |
1483 | * @FracN: OUTPUT: Fractional portion of the multiplier | |
1484 | * @f_LO: desired LO frequency. | |
1485 | * @f_LO_Step: Minimum step size for the LO (in Hz). | |
1486 | * @f_Ref: SRO frequency. | |
1487 | * @f_Avoid: Range of PLL frequencies to avoid near | |
1488 | * integer multiples of f_Ref (in Hz). | |
1489 | * | |
1490 | * Returns: Recalculated LO frequency. | |
1491 | */ | |
6fb16700 MCC |
1492 | static u32 MT2063_CalcLO2Mult(u32 *Div, |
1493 | u32 *FracN, | |
e3f94fb8 MCC |
1494 | u32 f_LO, |
1495 | u32 f_LO_Step, u32 f_Ref) | |
0e301442 MCC |
1496 | { |
1497 | /* Calculate the whole number portion of the divider */ | |
1498 | *Div = f_LO / f_Ref; | |
1499 | ||
1500 | /* Calculate the numerator value (round to nearest f_LO_Step) */ | |
1501 | *FracN = | |
1502 | (8191 * (((f_LO % f_Ref) + (f_LO_Step / 2)) / f_LO_Step) + | |
1503 | (f_Ref / f_LO_Step / 2)) / (f_Ref / f_LO_Step); | |
1504 | ||
1505 | return (f_Ref * (*Div)) + MT2063_fLO_FractionalTerm(f_Ref, *FracN, | |
1506 | 8191); | |
1507 | } | |
1508 | ||
54a4613f MCC |
1509 | /* |
1510 | * FindClearTuneFilter() - Calculate the corrrect ClearTune filter to be | |
1511 | * used for a given input frequency. | |
1512 | * | |
1513 | * @state: ptr to tuner data structure | |
1514 | * @f_in: RF input center frequency (in Hz). | |
1515 | * | |
1516 | * Returns: ClearTune filter number (0-31) | |
1517 | */ | |
dcd52d20 | 1518 | static u32 FindClearTuneFilter(struct mt2063_state *state, u32 f_in) |
0e301442 | 1519 | { |
cfde8925 MCC |
1520 | u32 RFBand; |
1521 | u32 idx; /* index loop */ | |
0e301442 MCC |
1522 | |
1523 | /* | |
1524 | ** Find RF Band setting | |
1525 | */ | |
1526 | RFBand = 31; /* def when f_in > all */ | |
1527 | for (idx = 0; idx < 31; ++idx) { | |
dcd52d20 | 1528 | if (state->CTFiltMax[idx] >= f_in) { |
0e301442 MCC |
1529 | RFBand = idx; |
1530 | break; | |
1531 | } | |
1532 | } | |
31e67fae | 1533 | return RFBand; |
0e301442 MCC |
1534 | } |
1535 | ||
54a4613f MCC |
1536 | /* |
1537 | * MT2063_Tune() - Change the tuner's tuned frequency to RFin. | |
1538 | */ | |
dcd52d20 | 1539 | static u32 MT2063_Tune(struct mt2063_state *state, u32 f_in) |
0e301442 | 1540 | { /* RF input center frequency */ |
0e301442 | 1541 | |
20eb13a7 | 1542 | int status = 0; |
cfde8925 MCC |
1543 | u32 LO1; /* 1st LO register value */ |
1544 | u32 Num1; /* Numerator for LO1 reg. value */ | |
1545 | u32 f_IF1; /* 1st IF requested */ | |
1546 | u32 LO2; /* 2nd LO register value */ | |
1547 | u32 Num2; /* Numerator for LO2 reg. value */ | |
1548 | u32 ofLO1, ofLO2; /* last time's LO frequencies */ | |
cfde8925 MCC |
1549 | u8 fiffc = 0x80; /* FIFF center freq from tuner */ |
1550 | u32 fiffof; /* Offset from FIFF center freq */ | |
1551 | const u8 LO1LK = 0x80; /* Mask for LO1 Lock bit */ | |
1552 | u8 LO2LK = 0x08; /* Mask for LO2 Lock bit */ | |
1553 | u8 val; | |
1554 | u32 RFBand; | |
0e301442 | 1555 | |
db6587bf | 1556 | dprintk(2, "\n"); |
0e301442 MCC |
1557 | /* Check the input and output frequency ranges */ |
1558 | if ((f_in < MT2063_MIN_FIN_FREQ) || (f_in > MT2063_MAX_FIN_FREQ)) | |
fdf77a4f | 1559 | return -EINVAL; |
0e301442 | 1560 | |
dcd52d20 MCC |
1561 | if ((state->AS_Data.f_out < MT2063_MIN_FOUT_FREQ) |
1562 | || (state->AS_Data.f_out > MT2063_MAX_FOUT_FREQ)) | |
fdf77a4f | 1563 | return -EINVAL; |
0e301442 MCC |
1564 | |
1565 | /* | |
54a4613f | 1566 | * Save original LO1 and LO2 register values |
0e301442 | 1567 | */ |
dcd52d20 | 1568 | ofLO1 = state->AS_Data.f_LO1; |
b5a91067 | 1569 | ofLO2 = state->AS_Data.f_LO2; |
0e301442 MCC |
1570 | |
1571 | /* | |
54a4613f | 1572 | * Find and set RF Band setting |
0e301442 | 1573 | */ |
dcd52d20 MCC |
1574 | if (state->ctfilt_sw == 1) { |
1575 | val = (state->reg[MT2063_REG_CTUNE_CTRL] | 0x08); | |
1576 | if (state->reg[MT2063_REG_CTUNE_CTRL] != val) { | |
0e301442 | 1577 | status |= |
8294e3ed | 1578 | mt2063_setreg(state, MT2063_REG_CTUNE_CTRL, val); |
0e301442 | 1579 | } |
dcd52d20 MCC |
1580 | val = state->reg[MT2063_REG_CTUNE_OV]; |
1581 | RFBand = FindClearTuneFilter(state, f_in); | |
1582 | state->reg[MT2063_REG_CTUNE_OV] = | |
1583 | (u8) ((state->reg[MT2063_REG_CTUNE_OV] & ~0x1F) | |
0e301442 | 1584 | | RFBand); |
dcd52d20 | 1585 | if (state->reg[MT2063_REG_CTUNE_OV] != val) { |
0e301442 | 1586 | status |= |
8294e3ed | 1587 | mt2063_setreg(state, MT2063_REG_CTUNE_OV, val); |
0e301442 MCC |
1588 | } |
1589 | } | |
1590 | ||
1591 | /* | |
54a4613f | 1592 | * Read the FIFF Center Frequency from the tuner |
0e301442 | 1593 | */ |
fdf77a4f | 1594 | if (status >= 0) { |
0e301442 | 1595 | status |= |
e1de3d18 | 1596 | mt2063_read(state, |
0e301442 | 1597 | MT2063_REG_FIFFC, |
dcd52d20 MCC |
1598 | &state->reg[MT2063_REG_FIFFC], 1); |
1599 | fiffc = state->reg[MT2063_REG_FIFFC]; | |
0e301442 MCC |
1600 | } |
1601 | /* | |
54a4613f | 1602 | * Assign in the requested values |
0e301442 | 1603 | */ |
dcd52d20 | 1604 | state->AS_Data.f_in = f_in; |
0e301442 | 1605 | /* Request a 1st IF such that LO1 is on a step size */ |
dcd52d20 MCC |
1606 | state->AS_Data.f_if1_Request = |
1607 | MT2063_Round_fLO(state->AS_Data.f_if1_Request + f_in, | |
1608 | state->AS_Data.f_LO1_Step, | |
1609 | state->AS_Data.f_ref) - f_in; | |
0e301442 MCC |
1610 | |
1611 | /* | |
54a4613f MCC |
1612 | * Calculate frequency settings. f_IF1_FREQ + f_in is the |
1613 | * desired LO1 frequency | |
0e301442 | 1614 | */ |
dcd52d20 | 1615 | MT2063_ResetExclZones(&state->AS_Data); |
0e301442 | 1616 | |
dcd52d20 | 1617 | f_IF1 = MT2063_ChooseFirstIF(&state->AS_Data); |
0e301442 | 1618 | |
dcd52d20 MCC |
1619 | state->AS_Data.f_LO1 = |
1620 | MT2063_Round_fLO(f_IF1 + f_in, state->AS_Data.f_LO1_Step, | |
1621 | state->AS_Data.f_ref); | |
0e301442 | 1622 | |
dcd52d20 MCC |
1623 | state->AS_Data.f_LO2 = |
1624 | MT2063_Round_fLO(state->AS_Data.f_LO1 - state->AS_Data.f_out - f_in, | |
1625 | state->AS_Data.f_LO2_Step, state->AS_Data.f_ref); | |
0e301442 MCC |
1626 | |
1627 | /* | |
54a4613f MCC |
1628 | * Check for any LO spurs in the output bandwidth and adjust |
1629 | * the LO settings to avoid them if needed | |
0e301442 | 1630 | */ |
e3f94fb8 | 1631 | status |= MT2063_AvoidSpurs(&state->AS_Data); |
0e301442 | 1632 | /* |
54a4613f MCC |
1633 | * MT_AvoidSpurs spurs may have changed the LO1 & LO2 values. |
1634 | * Recalculate the LO frequencies and the values to be placed | |
1635 | * in the tuning registers. | |
0e301442 | 1636 | */ |
dcd52d20 MCC |
1637 | state->AS_Data.f_LO1 = |
1638 | MT2063_CalcLO1Mult(&LO1, &Num1, state->AS_Data.f_LO1, | |
1639 | state->AS_Data.f_LO1_Step, state->AS_Data.f_ref); | |
1640 | state->AS_Data.f_LO2 = | |
1641 | MT2063_Round_fLO(state->AS_Data.f_LO1 - state->AS_Data.f_out - f_in, | |
1642 | state->AS_Data.f_LO2_Step, state->AS_Data.f_ref); | |
1643 | state->AS_Data.f_LO2 = | |
1644 | MT2063_CalcLO2Mult(&LO2, &Num2, state->AS_Data.f_LO2, | |
1645 | state->AS_Data.f_LO2_Step, state->AS_Data.f_ref); | |
0e301442 MCC |
1646 | |
1647 | /* | |
54a4613f | 1648 | * Check the upconverter and downconverter frequency ranges |
0e301442 | 1649 | */ |
dcd52d20 MCC |
1650 | if ((state->AS_Data.f_LO1 < MT2063_MIN_UPC_FREQ) |
1651 | || (state->AS_Data.f_LO1 > MT2063_MAX_UPC_FREQ)) | |
0e301442 | 1652 | status |= MT2063_UPC_RANGE; |
dcd52d20 MCC |
1653 | if ((state->AS_Data.f_LO2 < MT2063_MIN_DNC_FREQ) |
1654 | || (state->AS_Data.f_LO2 > MT2063_MAX_DNC_FREQ)) | |
0e301442 MCC |
1655 | status |= MT2063_DNC_RANGE; |
1656 | /* LO2 Lock bit was in a different place for B0 version */ | |
dcd52d20 | 1657 | if (state->tuner_id == MT2063_B0) |
0e301442 MCC |
1658 | LO2LK = 0x40; |
1659 | ||
1660 | /* | |
54a4613f MCC |
1661 | * If we have the same LO frequencies and we're already locked, |
1662 | * then skip re-programming the LO registers. | |
0e301442 | 1663 | */ |
dcd52d20 MCC |
1664 | if ((ofLO1 != state->AS_Data.f_LO1) |
1665 | || (ofLO2 != state->AS_Data.f_LO2) | |
1666 | || ((state->reg[MT2063_REG_LO_STATUS] & (LO1LK | LO2LK)) != | |
0e301442 MCC |
1667 | (LO1LK | LO2LK))) { |
1668 | /* | |
54a4613f MCC |
1669 | * Calculate the FIFFOF register value |
1670 | * | |
1671 | * IF1_Actual | |
1672 | * FIFFOF = ------------ - 8 * FIFFC - 4992 | |
1673 | * f_ref/64 | |
0e301442 MCC |
1674 | */ |
1675 | fiffof = | |
dcd52d20 MCC |
1676 | (state->AS_Data.f_LO1 - |
1677 | f_in) / (state->AS_Data.f_ref / 64) - 8 * (u32) fiffc - | |
0e301442 MCC |
1678 | 4992; |
1679 | if (fiffof > 0xFF) | |
1680 | fiffof = 0xFF; | |
1681 | ||
1682 | /* | |
54a4613f MCC |
1683 | * Place all of the calculated values into the local tuner |
1684 | * register fields. | |
0e301442 | 1685 | */ |
fdf77a4f | 1686 | if (status >= 0) { |
dcd52d20 MCC |
1687 | state->reg[MT2063_REG_LO1CQ_1] = (u8) (LO1 & 0xFF); /* DIV1q */ |
1688 | state->reg[MT2063_REG_LO1CQ_2] = (u8) (Num1 & 0x3F); /* NUM1q */ | |
1689 | state->reg[MT2063_REG_LO2CQ_1] = (u8) (((LO2 & 0x7F) << 1) /* DIV2q */ | |
0e301442 | 1690 | |(Num2 >> 12)); /* NUM2q (hi) */ |
dcd52d20 MCC |
1691 | state->reg[MT2063_REG_LO2CQ_2] = (u8) ((Num2 & 0x0FF0) >> 4); /* NUM2q (mid) */ |
1692 | state->reg[MT2063_REG_LO2CQ_3] = (u8) (0xE0 | (Num2 & 0x000F)); /* NUM2q (lo) */ | |
0e301442 MCC |
1693 | |
1694 | /* | |
54a4613f MCC |
1695 | * Now write out the computed register values |
1696 | * IMPORTANT: There is a required order for writing | |
1697 | * (0x05 must follow all the others). | |
0e301442 | 1698 | */ |
e1de3d18 | 1699 | status |= mt2063_write(state, MT2063_REG_LO1CQ_1, &state->reg[MT2063_REG_LO1CQ_1], 5); /* 0x01 - 0x05 */ |
dcd52d20 | 1700 | if (state->tuner_id == MT2063_B0) { |
0e301442 | 1701 | /* Re-write the one-shot bits to trigger the tune operation */ |
e1de3d18 | 1702 | status |= mt2063_write(state, MT2063_REG_LO2CQ_3, &state->reg[MT2063_REG_LO2CQ_3], 1); /* 0x05 */ |
0e301442 MCC |
1703 | } |
1704 | /* Write out the FIFF offset only if it's changing */ | |
dcd52d20 | 1705 | if (state->reg[MT2063_REG_FIFF_OFFSET] != |
cfde8925 | 1706 | (u8) fiffof) { |
dcd52d20 | 1707 | state->reg[MT2063_REG_FIFF_OFFSET] = |
cfde8925 | 1708 | (u8) fiffof; |
0e301442 | 1709 | status |= |
e1de3d18 | 1710 | mt2063_write(state, |
0e301442 | 1711 | MT2063_REG_FIFF_OFFSET, |
dcd52d20 | 1712 | &state-> |
0e301442 MCC |
1713 | reg[MT2063_REG_FIFF_OFFSET], |
1714 | 1); | |
1715 | } | |
1716 | } | |
1717 | ||
1718 | /* | |
54a4613f | 1719 | * Check for LO's locking |
0e301442 MCC |
1720 | */ |
1721 | ||
31e67fae MCC |
1722 | if (status < 0) |
1723 | return status; | |
1724 | ||
1725 | status = mt2063_lockStatus(state); | |
1726 | if (status < 0) | |
1727 | return status; | |
1728 | if (!status) | |
1729 | return -EINVAL; /* Couldn't lock */ | |
1730 | ||
0e301442 | 1731 | /* |
31e67fae | 1732 | * If we locked OK, assign calculated data to mt2063_state structure |
0e301442 | 1733 | */ |
31e67fae | 1734 | state->f_IF1_actual = state->AS_Data.f_LO1 - f_in; |
0e301442 MCC |
1735 | } |
1736 | ||
31e67fae | 1737 | return status; |
0e301442 MCC |
1738 | } |
1739 | ||
01e0dafc MCC |
1740 | static const u8 MT2063B0_defaults[] = { |
1741 | /* Reg, Value */ | |
1742 | 0x19, 0x05, | |
1743 | 0x1B, 0x1D, | |
1744 | 0x1C, 0x1F, | |
1745 | 0x1D, 0x0F, | |
1746 | 0x1E, 0x3F, | |
1747 | 0x1F, 0x0F, | |
1748 | 0x20, 0x3F, | |
1749 | 0x22, 0x21, | |
1750 | 0x23, 0x3F, | |
1751 | 0x24, 0x20, | |
1752 | 0x25, 0x3F, | |
1753 | 0x27, 0xEE, | |
1754 | 0x2C, 0x27, /* bit at 0x20 is cleared below */ | |
1755 | 0x30, 0x03, | |
1756 | 0x2C, 0x07, /* bit at 0x20 is cleared here */ | |
1757 | 0x2D, 0x87, | |
1758 | 0x2E, 0xAA, | |
1759 | 0x28, 0xE1, /* Set the FIFCrst bit here */ | |
1760 | 0x28, 0xE0, /* Clear the FIFCrst bit here */ | |
1761 | 0x00 | |
1762 | }; | |
1763 | ||
1764 | /* writing 0x05 0xf0 sw-resets all registers, so we write only needed changes */ | |
1765 | static const u8 MT2063B1_defaults[] = { | |
1766 | /* Reg, Value */ | |
1767 | 0x05, 0xF0, | |
1768 | 0x11, 0x10, /* New Enable AFCsd */ | |
1769 | 0x19, 0x05, | |
1770 | 0x1A, 0x6C, | |
1771 | 0x1B, 0x24, | |
1772 | 0x1C, 0x28, | |
1773 | 0x1D, 0x8F, | |
1774 | 0x1E, 0x14, | |
1775 | 0x1F, 0x8F, | |
1776 | 0x20, 0x57, | |
1777 | 0x22, 0x21, /* New - ver 1.03 */ | |
1778 | 0x23, 0x3C, /* New - ver 1.10 */ | |
1779 | 0x24, 0x20, /* New - ver 1.03 */ | |
1780 | 0x2C, 0x24, /* bit at 0x20 is cleared below */ | |
1781 | 0x2D, 0x87, /* FIFFQ=0 */ | |
1782 | 0x2F, 0xF3, | |
1783 | 0x30, 0x0C, /* New - ver 1.11 */ | |
1784 | 0x31, 0x1B, /* New - ver 1.11 */ | |
1785 | 0x2C, 0x04, /* bit at 0x20 is cleared here */ | |
1786 | 0x28, 0xE1, /* Set the FIFCrst bit here */ | |
1787 | 0x28, 0xE0, /* Clear the FIFCrst bit here */ | |
1788 | 0x00 | |
1789 | }; | |
1790 | ||
1791 | /* writing 0x05 0xf0 sw-resets all registers, so we write only needed changes */ | |
1792 | static const u8 MT2063B3_defaults[] = { | |
1793 | /* Reg, Value */ | |
1794 | 0x05, 0xF0, | |
1795 | 0x19, 0x3D, | |
1796 | 0x2C, 0x24, /* bit at 0x20 is cleared below */ | |
1797 | 0x2C, 0x04, /* bit at 0x20 is cleared here */ | |
1798 | 0x28, 0xE1, /* Set the FIFCrst bit here */ | |
1799 | 0x28, 0xE0, /* Clear the FIFCrst bit here */ | |
1800 | 0x00 | |
1801 | }; | |
1802 | ||
0e301442 MCC |
1803 | static int mt2063_init(struct dvb_frontend *fe) |
1804 | { | |
20eb13a7 | 1805 | int status; |
0e301442 | 1806 | struct mt2063_state *state = fe->tuner_priv; |
01e0dafc MCC |
1807 | u8 all_resets = 0xF0; /* reset/load bits */ |
1808 | const u8 *def = NULL; | |
19ad6a01 | 1809 | char *step; |
01e0dafc MCC |
1810 | u32 FCRUN; |
1811 | s32 maxReads; | |
1812 | u32 fcu_osc; | |
1813 | u32 i; | |
1814 | ||
db6587bf MCC |
1815 | dprintk(2, "\n"); |
1816 | ||
01e0dafc MCC |
1817 | state->rcvr_mode = MT2063_CABLE_QAM; |
1818 | ||
1819 | /* Read the Part/Rev code from the tuner */ | |
36ae6df0 MCC |
1820 | status = mt2063_read(state, MT2063_REG_PART_REV, |
1821 | &state->reg[MT2063_REG_PART_REV], 1); | |
db6587bf MCC |
1822 | if (status < 0) { |
1823 | printk(KERN_ERR "Can't read mt2063 part ID\n"); | |
01e0dafc | 1824 | return status; |
db6587bf | 1825 | } |
01e0dafc MCC |
1826 | |
1827 | /* Check the part/rev code */ | |
19ad6a01 MCC |
1828 | switch (state->reg[MT2063_REG_PART_REV]) { |
1829 | case MT2063_B0: | |
1830 | step = "B0"; | |
1831 | break; | |
1832 | case MT2063_B1: | |
1833 | step = "B1"; | |
1834 | break; | |
1835 | case MT2063_B2: | |
1836 | step = "B2"; | |
1837 | break; | |
1838 | case MT2063_B3: | |
1839 | step = "B3"; | |
1840 | break; | |
1841 | default: | |
1842 | printk(KERN_ERR "mt2063: Unknown mt2063 device ID (0x%02x)\n", | |
1843 | state->reg[MT2063_REG_PART_REV]); | |
01e0dafc | 1844 | return -ENODEV; /* Wrong tuner Part/Rev code */ |
19ad6a01 | 1845 | } |
0e301442 | 1846 | |
01e0dafc MCC |
1847 | /* Check the 2nd byte of the Part/Rev code from the tuner */ |
1848 | status = mt2063_read(state, MT2063_REG_RSVD_3B, | |
1849 | &state->reg[MT2063_REG_RSVD_3B], 1); | |
0e301442 | 1850 | |
01e0dafc | 1851 | /* b7 != 0 ==> NOT MT2063 */ |
db6587bf | 1852 | if (status < 0 || ((state->reg[MT2063_REG_RSVD_3B] & 0x80) != 0x00)) { |
36ae6df0 MCC |
1853 | printk(KERN_ERR "mt2063: Unknown part ID (0x%02x%02x)\n", |
1854 | state->reg[MT2063_REG_PART_REV], | |
1855 | state->reg[MT2063_REG_RSVD_3B]); | |
01e0dafc | 1856 | return -ENODEV; /* Wrong tuner Part/Rev code */ |
db6587bf | 1857 | } |
01e0dafc | 1858 | |
d1244f77 | 1859 | printk(KERN_INFO "mt2063: detected a mt2063 %s\n", step); |
19ad6a01 | 1860 | |
01e0dafc MCC |
1861 | /* Reset the tuner */ |
1862 | status = mt2063_write(state, MT2063_REG_LO2CQ_3, &all_resets, 1); | |
1863 | if (status < 0) | |
1864 | return status; | |
1865 | ||
1866 | /* change all of the default values that vary from the HW reset values */ | |
1867 | /* def = (state->reg[PART_REV] == MT2063_B0) ? MT2063B0_defaults : MT2063B1_defaults; */ | |
1868 | switch (state->reg[MT2063_REG_PART_REV]) { | |
1869 | case MT2063_B3: | |
1870 | def = MT2063B3_defaults; | |
1871 | break; | |
1872 | ||
1873 | case MT2063_B1: | |
1874 | def = MT2063B1_defaults; | |
1875 | break; | |
1876 | ||
1877 | case MT2063_B0: | |
1878 | def = MT2063B0_defaults; | |
1879 | break; | |
1880 | ||
1881 | default: | |
1882 | return -ENODEV; | |
1883 | break; | |
0e301442 MCC |
1884 | } |
1885 | ||
01e0dafc MCC |
1886 | while (status >= 0 && *def) { |
1887 | u8 reg = *def++; | |
1888 | u8 val = *def++; | |
1889 | status = mt2063_write(state, reg, &val, 1); | |
1890 | } | |
1891 | if (status < 0) | |
1892 | return status; | |
1893 | ||
1894 | /* Wait for FIFF location to complete. */ | |
1895 | FCRUN = 1; | |
1896 | maxReads = 10; | |
1897 | while (status >= 0 && (FCRUN != 0) && (maxReads-- > 0)) { | |
1898 | msleep(2); | |
1899 | status = mt2063_read(state, | |
1900 | MT2063_REG_XO_STATUS, | |
1901 | &state-> | |
1902 | reg[MT2063_REG_XO_STATUS], 1); | |
1903 | FCRUN = (state->reg[MT2063_REG_XO_STATUS] & 0x40) >> 6; | |
1904 | } | |
1905 | ||
1906 | if (FCRUN != 0 || status < 0) | |
1907 | return -ENODEV; | |
1908 | ||
1909 | status = mt2063_read(state, | |
1910 | MT2063_REG_FIFFC, | |
1911 | &state->reg[MT2063_REG_FIFFC], 1); | |
1912 | if (status < 0) | |
1913 | return status; | |
1914 | ||
1915 | /* Read back all the registers from the tuner */ | |
1916 | status = mt2063_read(state, | |
1917 | MT2063_REG_PART_REV, | |
1918 | state->reg, MT2063_REG_END_REGS); | |
1919 | if (status < 0) | |
1920 | return status; | |
1921 | ||
1922 | /* Initialize the tuner state. */ | |
1923 | state->tuner_id = state->reg[MT2063_REG_PART_REV]; | |
1924 | state->AS_Data.f_ref = MT2063_REF_FREQ; | |
1925 | state->AS_Data.f_if1_Center = (state->AS_Data.f_ref / 8) * | |
1926 | ((u32) state->reg[MT2063_REG_FIFFC] + 640); | |
1927 | state->AS_Data.f_if1_bw = MT2063_IF1_BW; | |
1928 | state->AS_Data.f_out = 43750000UL; | |
1929 | state->AS_Data.f_out_bw = 6750000UL; | |
1930 | state->AS_Data.f_zif_bw = MT2063_ZIF_BW; | |
1931 | state->AS_Data.f_LO1_Step = state->AS_Data.f_ref / 64; | |
1932 | state->AS_Data.f_LO2_Step = MT2063_TUNE_STEP_SIZE; | |
1933 | state->AS_Data.maxH1 = MT2063_MAX_HARMONICS_1; | |
1934 | state->AS_Data.maxH2 = MT2063_MAX_HARMONICS_2; | |
1935 | state->AS_Data.f_min_LO_Separation = MT2063_MIN_LO_SEP; | |
1936 | state->AS_Data.f_if1_Request = state->AS_Data.f_if1_Center; | |
1937 | state->AS_Data.f_LO1 = 2181000000UL; | |
1938 | state->AS_Data.f_LO2 = 1486249786UL; | |
1939 | state->f_IF1_actual = state->AS_Data.f_if1_Center; | |
1940 | state->AS_Data.f_in = state->AS_Data.f_LO1 - state->f_IF1_actual; | |
1941 | state->AS_Data.f_LO1_FracN_Avoid = MT2063_LO1_FRACN_AVOID; | |
1942 | state->AS_Data.f_LO2_FracN_Avoid = MT2063_LO2_FRACN_AVOID; | |
1943 | state->num_regs = MT2063_REG_END_REGS; | |
1944 | state->AS_Data.avoidDECT = MT2063_AVOID_BOTH; | |
1945 | state->ctfilt_sw = 0; | |
1946 | ||
1947 | state->CTFiltMax[0] = 69230000; | |
1948 | state->CTFiltMax[1] = 105770000; | |
1949 | state->CTFiltMax[2] = 140350000; | |
1950 | state->CTFiltMax[3] = 177110000; | |
1951 | state->CTFiltMax[4] = 212860000; | |
1952 | state->CTFiltMax[5] = 241130000; | |
1953 | state->CTFiltMax[6] = 274370000; | |
1954 | state->CTFiltMax[7] = 309820000; | |
1955 | state->CTFiltMax[8] = 342450000; | |
1956 | state->CTFiltMax[9] = 378870000; | |
1957 | state->CTFiltMax[10] = 416210000; | |
1958 | state->CTFiltMax[11] = 456500000; | |
1959 | state->CTFiltMax[12] = 495790000; | |
1960 | state->CTFiltMax[13] = 534530000; | |
1961 | state->CTFiltMax[14] = 572610000; | |
1962 | state->CTFiltMax[15] = 598970000; | |
1963 | state->CTFiltMax[16] = 635910000; | |
1964 | state->CTFiltMax[17] = 672130000; | |
1965 | state->CTFiltMax[18] = 714840000; | |
1966 | state->CTFiltMax[19] = 739660000; | |
1967 | state->CTFiltMax[20] = 770410000; | |
1968 | state->CTFiltMax[21] = 814660000; | |
1969 | state->CTFiltMax[22] = 846950000; | |
1970 | state->CTFiltMax[23] = 867820000; | |
1971 | state->CTFiltMax[24] = 915980000; | |
1972 | state->CTFiltMax[25] = 947450000; | |
1973 | state->CTFiltMax[26] = 983110000; | |
1974 | state->CTFiltMax[27] = 1021630000; | |
1975 | state->CTFiltMax[28] = 1061870000; | |
1976 | state->CTFiltMax[29] = 1098330000; | |
1977 | state->CTFiltMax[30] = 1138990000; | |
1978 | ||
1979 | /* | |
1980 | ** Fetch the FCU osc value and use it and the fRef value to | |
1981 | ** scale all of the Band Max values | |
1982 | */ | |
1983 | ||
1984 | state->reg[MT2063_REG_CTUNE_CTRL] = 0x0A; | |
1985 | status = mt2063_write(state, MT2063_REG_CTUNE_CTRL, | |
1986 | &state->reg[MT2063_REG_CTUNE_CTRL], 1); | |
1987 | if (status < 0) | |
1988 | return status; | |
1989 | ||
1990 | /* Read the ClearTune filter calibration value */ | |
1991 | status = mt2063_read(state, MT2063_REG_FIFFC, | |
1992 | &state->reg[MT2063_REG_FIFFC], 1); | |
1993 | if (status < 0) | |
1994 | return status; | |
1995 | ||
1996 | fcu_osc = state->reg[MT2063_REG_FIFFC]; | |
1997 | ||
1998 | state->reg[MT2063_REG_CTUNE_CTRL] = 0x00; | |
1999 | status = mt2063_write(state, MT2063_REG_CTUNE_CTRL, | |
2000 | &state->reg[MT2063_REG_CTUNE_CTRL], 1); | |
2001 | if (status < 0) | |
2002 | return status; | |
2003 | ||
2004 | /* Adjust each of the values in the ClearTune filter cross-over table */ | |
2005 | for (i = 0; i < 31; i++) | |
6fb16700 | 2006 | state->CTFiltMax[i] = (state->CTFiltMax[i] / 768) * (fcu_osc + 640); |
01e0dafc MCC |
2007 | |
2008 | status = MT2063_SoftwareShutdown(state, 1); | |
2009 | if (status < 0) | |
2010 | return status; | |
2011 | status = MT2063_ClearPowerMaskBits(state, MT2063_ALL_SD); | |
2012 | if (status < 0) | |
2013 | return status; | |
2014 | ||
1b0bfee3 MCC |
2015 | state->init = true; |
2016 | ||
0e301442 MCC |
2017 | return 0; |
2018 | } | |
2019 | ||
99ac5412 | 2020 | static int mt2063_get_status(struct dvb_frontend *fe, u32 *tuner_status) |
223c7b05 | 2021 | { |
99ac5412 MCC |
2022 | struct mt2063_state *state = fe->tuner_priv; |
2023 | int status; | |
0e301442 | 2024 | |
db6587bf MCC |
2025 | dprintk(2, "\n"); |
2026 | ||
1b0bfee3 MCC |
2027 | if (!state->init) |
2028 | return -ENODEV; | |
2029 | ||
99ac5412 MCC |
2030 | *tuner_status = 0; |
2031 | status = mt2063_lockStatus(state); | |
2032 | if (status < 0) | |
2033 | return status; | |
2034 | if (status) | |
54a4613f | 2035 | *tuner_status = TUNER_STATUS_LOCKED; |
0e301442 | 2036 | |
b52e7c76 MCC |
2037 | dprintk(1, "Tuner status: %d", *tuner_status); |
2038 | ||
99ac5412 | 2039 | return 0; |
223c7b05 | 2040 | } |
0e301442 | 2041 | |
99ac5412 | 2042 | static int mt2063_release(struct dvb_frontend *fe) |
0e301442 | 2043 | { |
51f0f7b3 | 2044 | struct mt2063_state *state = fe->tuner_priv; |
0e301442 | 2045 | |
db6587bf MCC |
2046 | dprintk(2, "\n"); |
2047 | ||
99ac5412 MCC |
2048 | fe->tuner_priv = NULL; |
2049 | kfree(state); | |
2050 | ||
2051 | return 0; | |
2052 | } | |
2053 | ||
2054 | static int mt2063_set_analog_params(struct dvb_frontend *fe, | |
2055 | struct analog_parameters *params) | |
2056 | { | |
2057 | struct mt2063_state *state = fe->tuner_priv; | |
2e1d5885 MCC |
2058 | s32 pict_car; |
2059 | s32 pict2chanb_vsb; | |
2060 | s32 ch_bw; | |
2061 | s32 if_mid; | |
2062 | s32 rcvr_mode; | |
99ac5412 MCC |
2063 | int status; |
2064 | ||
db6587bf MCC |
2065 | dprintk(2, "\n"); |
2066 | ||
1b0bfee3 MCC |
2067 | if (!state->init) { |
2068 | status = mt2063_init(fe); | |
2069 | if (status < 0) | |
2070 | return status; | |
2071 | } | |
2072 | ||
99ac5412 MCC |
2073 | switch (params->mode) { |
2074 | case V4L2_TUNER_RADIO: | |
2075 | pict_car = 38900000; | |
2076 | ch_bw = 8000000; | |
2077 | pict2chanb_vsb = -(ch_bw / 2); | |
99ac5412 | 2078 | rcvr_mode = MT2063_OFFAIR_ANALOG; |
223c7b05 | 2079 | break; |
99ac5412 MCC |
2080 | case V4L2_TUNER_ANALOG_TV: |
2081 | rcvr_mode = MT2063_CABLE_ANALOG; | |
2082 | if (params->std & ~V4L2_STD_MN) { | |
2083 | pict_car = 38900000; | |
2084 | ch_bw = 6000000; | |
2085 | pict2chanb_vsb = -1250000; | |
99ac5412 MCC |
2086 | } else if (params->std & V4L2_STD_PAL_G) { |
2087 | pict_car = 38900000; | |
2088 | ch_bw = 7000000; | |
2089 | pict2chanb_vsb = -1250000; | |
2e1d5885 | 2090 | } else { /* PAL/SECAM standards */ |
99ac5412 MCC |
2091 | pict_car = 38900000; |
2092 | ch_bw = 8000000; | |
2093 | pict2chanb_vsb = -1250000; | |
99ac5412 | 2094 | } |
223c7b05 | 2095 | break; |
2e1d5885 MCC |
2096 | default: |
2097 | return -EINVAL; | |
223c7b05 | 2098 | } |
99ac5412 MCC |
2099 | if_mid = pict_car - (pict2chanb_vsb + (ch_bw / 2)); |
2100 | ||
2101 | state->AS_Data.f_LO2_Step = 125000; /* FIXME: probably 5000 for FM */ | |
2102 | state->AS_Data.f_out = if_mid; | |
2103 | state->AS_Data.f_out_bw = ch_bw + 750000; | |
2104 | status = MT2063_SetReceiverMode(state, rcvr_mode); | |
2105 | if (status < 0) | |
2106 | return status; | |
2107 | ||
b52e7c76 MCC |
2108 | dprintk(1, "Tuning to frequency: %d, bandwidth %d, foffset %d\n", |
2109 | params->frequency, ch_bw, pict2chanb_vsb); | |
2110 | ||
99ac5412 MCC |
2111 | status = MT2063_Tune(state, (params->frequency + (pict2chanb_vsb + (ch_bw / 2)))); |
2112 | if (status < 0) | |
2113 | return status; | |
223c7b05 | 2114 | |
99ac5412 MCC |
2115 | state->frequency = params->frequency; |
2116 | return 0; | |
0e301442 MCC |
2117 | } |
2118 | ||
99ac5412 MCC |
2119 | /* |
2120 | * As defined on EN 300 429, the DVB-C roll-off factor is 0.15. | |
39c1cb2b | 2121 | * So, the amount of the needed bandwidth is given by: |
54a4613f | 2122 | * Bw = Symbol_rate * (1 + 0.15) |
99ac5412 MCC |
2123 | * As such, the maximum symbol rate supported by 6 MHz is given by: |
2124 | * max_symbol_rate = 6 MHz / 1.15 = 5217391 Bauds | |
2125 | */ | |
2126 | #define MAX_SYMBOL_RATE_6MHz 5217391 | |
2127 | ||
669b67d9 | 2128 | static int mt2063_set_params(struct dvb_frontend *fe) |
223c7b05 | 2129 | { |
669b67d9 | 2130 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
51f0f7b3 | 2131 | struct mt2063_state *state = fe->tuner_priv; |
99ac5412 | 2132 | int status; |
2e1d5885 MCC |
2133 | s32 pict_car; |
2134 | s32 pict2chanb_vsb; | |
2135 | s32 ch_bw; | |
2136 | s32 if_mid; | |
2137 | s32 rcvr_mode; | |
0e301442 | 2138 | |
1b0bfee3 MCC |
2139 | if (!state->init) { |
2140 | status = mt2063_init(fe); | |
2141 | if (status < 0) | |
2142 | return status; | |
2143 | } | |
2144 | ||
db6587bf MCC |
2145 | dprintk(2, "\n"); |
2146 | ||
669b67d9 MCC |
2147 | if (c->bandwidth_hz == 0) |
2148 | return -EINVAL; | |
2149 | if (c->bandwidth_hz <= 6000000) | |
2150 | ch_bw = 6000000; | |
2151 | else if (c->bandwidth_hz <= 7000000) | |
2152 | ch_bw = 7000000; | |
2153 | else | |
2154 | ch_bw = 8000000; | |
2155 | ||
2156 | switch (c->delivery_system) { | |
2157 | case SYS_DVBT: | |
99ac5412 MCC |
2158 | rcvr_mode = MT2063_OFFAIR_COFDM; |
2159 | pict_car = 36125000; | |
2160 | pict2chanb_vsb = -(ch_bw / 2); | |
0e301442 | 2161 | break; |
669b67d9 MCC |
2162 | case SYS_DVBC_ANNEX_A: |
2163 | case SYS_DVBC_ANNEX_C: | |
99ac5412 MCC |
2164 | rcvr_mode = MT2063_CABLE_QAM; |
2165 | pict_car = 36125000; | |
99ac5412 | 2166 | pict2chanb_vsb = -(ch_bw / 2); |
0e301442 | 2167 | break; |
223c7b05 | 2168 | default: |
99ac5412 | 2169 | return -EINVAL; |
223c7b05 | 2170 | } |
99ac5412 MCC |
2171 | if_mid = pict_car - (pict2chanb_vsb + (ch_bw / 2)); |
2172 | ||
2173 | state->AS_Data.f_LO2_Step = 125000; /* FIXME: probably 5000 for FM */ | |
2174 | state->AS_Data.f_out = if_mid; | |
2175 | state->AS_Data.f_out_bw = ch_bw + 750000; | |
2176 | status = MT2063_SetReceiverMode(state, rcvr_mode); | |
2177 | if (status < 0) | |
2178 | return status; | |
2179 | ||
b52e7c76 MCC |
2180 | dprintk(1, "Tuning to frequency: %d, bandwidth %d, foffset %d\n", |
2181 | c->frequency, ch_bw, pict2chanb_vsb); | |
2182 | ||
669b67d9 | 2183 | status = MT2063_Tune(state, (c->frequency + (pict2chanb_vsb + (ch_bw / 2)))); |
99ac5412 MCC |
2184 | |
2185 | if (status < 0) | |
54a4613f | 2186 | return status; |
223c7b05 | 2187 | |
669b67d9 | 2188 | state->frequency = c->frequency; |
99ac5412 | 2189 | return 0; |
0e301442 MCC |
2190 | } |
2191 | ||
5160e81b | 2192 | static int mt2063_get_if_frequency(struct dvb_frontend *fe, u32 *freq) |
223c7b05 | 2193 | { |
0e301442 | 2194 | struct mt2063_state *state = fe->tuner_priv; |
223c7b05 | 2195 | |
db6587bf MCC |
2196 | dprintk(2, "\n"); |
2197 | ||
1b0bfee3 MCC |
2198 | if (!state->init) |
2199 | return -ENODEV; | |
2200 | ||
eeecd0ca | 2201 | *freq = state->AS_Data.f_out; |
b52e7c76 | 2202 | |
5160e81b | 2203 | dprintk(1, "IF frequency: %d\n", *freq); |
b52e7c76 | 2204 | |
99ac5412 MCC |
2205 | return 0; |
2206 | } | |
2207 | ||
2208 | static int mt2063_get_bandwidth(struct dvb_frontend *fe, u32 *bw) | |
2209 | { | |
2210 | struct mt2063_state *state = fe->tuner_priv; | |
223c7b05 | 2211 | |
db6587bf MCC |
2212 | dprintk(2, "\n"); |
2213 | ||
1b0bfee3 MCC |
2214 | if (!state->init) |
2215 | return -ENODEV; | |
2216 | ||
99ac5412 | 2217 | *bw = state->AS_Data.f_out_bw - 750000; |
b52e7c76 MCC |
2218 | |
2219 | dprintk(1, "bandwidth: %d\n", *bw); | |
2220 | ||
223c7b05 | 2221 | return 0; |
0e301442 MCC |
2222 | } |
2223 | ||
2224 | static struct dvb_tuner_ops mt2063_ops = { | |
223c7b05 | 2225 | .info = { |
0e301442 MCC |
2226 | .name = "MT2063 Silicon Tuner", |
2227 | .frequency_min = 45000000, | |
db5823b5 | 2228 | .frequency_max = 865000000, |
0e301442 MCC |
2229 | .frequency_step = 0, |
2230 | }, | |
2231 | ||
2232 | .init = mt2063_init, | |
bf97555e | 2233 | .sleep = MT2063_Sleep, |
0e301442 | 2234 | .get_status = mt2063_get_status, |
99ac5412 MCC |
2235 | .set_analog_params = mt2063_set_analog_params, |
2236 | .set_params = mt2063_set_params, | |
5160e81b | 2237 | .get_if_frequency = mt2063_get_if_frequency, |
99ac5412 MCC |
2238 | .get_bandwidth = mt2063_get_bandwidth, |
2239 | .release = mt2063_release, | |
223c7b05 MCC |
2240 | }; |
2241 | ||
0e301442 MCC |
2242 | struct dvb_frontend *mt2063_attach(struct dvb_frontend *fe, |
2243 | struct mt2063_config *config, | |
2244 | struct i2c_adapter *i2c) | |
223c7b05 | 2245 | { |
0e301442 | 2246 | struct mt2063_state *state = NULL; |
223c7b05 | 2247 | |
db6587bf MCC |
2248 | dprintk(2, "\n"); |
2249 | ||
0e301442 | 2250 | state = kzalloc(sizeof(struct mt2063_state), GFP_KERNEL); |
6f0fdc49 PST |
2251 | if (!state) |
2252 | return NULL; | |
223c7b05 | 2253 | |
0e301442 MCC |
2254 | state->config = config; |
2255 | state->i2c = i2c; | |
2256 | state->frontend = fe; | |
2257 | state->reference = config->refclock / 1000; /* kHz */ | |
0e301442 MCC |
2258 | fe->tuner_priv = state; |
2259 | fe->ops.tuner_ops = mt2063_ops; | |
223c7b05 | 2260 | |
6fb16700 | 2261 | printk(KERN_INFO "%s: Attaching MT2063\n", __func__); |
223c7b05 | 2262 | return fe; |
223c7b05 | 2263 | } |
3d49700f | 2264 | EXPORT_SYMBOL_GPL(mt2063_attach); |
223c7b05 | 2265 | |
20eb13a7 | 2266 | #if 0 |
8294e3ed MCC |
2267 | /* |
2268 | * Ancillary routines visible outside mt2063 | |
2269 | * FIXME: Remove them in favor of using standard tuner callbacks | |
2270 | */ | |
20eb13a7 | 2271 | static int tuner_MT2063_SoftwareShutdown(struct dvb_frontend *fe) |
8294e3ed MCC |
2272 | { |
2273 | struct mt2063_state *state = fe->tuner_priv; | |
2274 | int err = 0; | |
2275 | ||
db6587bf MCC |
2276 | dprintk(2, "\n"); |
2277 | ||
8294e3ed MCC |
2278 | err = MT2063_SoftwareShutdown(state, 1); |
2279 | if (err < 0) | |
2280 | printk(KERN_ERR "%s: Couldn't shutdown\n", __func__); | |
2281 | ||
2282 | return err; | |
2283 | } | |
8294e3ed | 2284 | |
20eb13a7 | 2285 | static int tuner_MT2063_ClearPowerMaskBits(struct dvb_frontend *fe) |
8294e3ed MCC |
2286 | { |
2287 | struct mt2063_state *state = fe->tuner_priv; | |
2288 | int err = 0; | |
2289 | ||
db6587bf MCC |
2290 | dprintk(2, "\n"); |
2291 | ||
8294e3ed MCC |
2292 | err = MT2063_ClearPowerMaskBits(state, MT2063_ALL_SD); |
2293 | if (err < 0) | |
2294 | printk(KERN_ERR "%s: Invalid parameter\n", __func__); | |
2295 | ||
2296 | return err; | |
2297 | } | |
20eb13a7 | 2298 | #endif |
8294e3ed | 2299 | |
37e59f87 | 2300 | MODULE_AUTHOR("Mauro Carvalho Chehab"); |
0e301442 MCC |
2301 | MODULE_DESCRIPTION("MT2063 Silicon tuner"); |
2302 | MODULE_LICENSE("GPL"); |