1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * |
4 | * (c) 2005 Hartmut Hackmann |
5 | * (c) 2007 Michael Krufky |
6 | */ |
7 | |
8 | #include <linux/module.h> |
9 | #include <linux/slab.h> |
10 | #include <asm/types.h> |
11 | #include <linux/dvb/frontend.h> |
12 | #include <linux/videodev2.h> |
13 | |
14 | #include "tda827x.h" |
15 | |
16 | static int debug; |
17 | module_param(debug, int, 0644); |
18 | MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)." ); |
19 | |
20 | #define dprintk(args...) \ |
21 | do { \ |
22 | if (debug) printk(KERN_DEBUG "tda827x: " args); \ |
23 | } while (0) |
24 | |
25 | struct tda827x_priv { |
26 | int i2c_addr; |
27 | struct i2c_adapter *i2c_adap; |
28 | struct tda827x_config *cfg; |
29 | |
30 | unsigned int sgIF; |
31 | unsigned char lpsel; |
32 | |
33 | u32 frequency; |
34 | u32 bandwidth; |
35 | }; |
36 | |
37 | static void tda827x_set_std(struct dvb_frontend *fe, |
38 | struct analog_parameters *params) |
39 | { |
40 | struct tda827x_priv *priv = fe->tuner_priv; |
41 | char *mode; |
42 | |
43 | priv->lpsel = 0; |
44 | if (params->std & V4L2_STD_MN) { |
45 | priv->sgIF = 92; |
46 | priv->lpsel = 1; |
47 | mode = "MN" ; |
48 | } else if (params->std & V4L2_STD_B) { |
49 | priv->sgIF = 108; |
50 | mode = "B" ; |
51 | } else if (params->std & V4L2_STD_GH) { |
52 | priv->sgIF = 124; |
53 | mode = "GH" ; |
54 | } else if (params->std & V4L2_STD_PAL_I) { |
55 | priv->sgIF = 124; |
56 | mode = "I" ; |
57 | } else if (params->std & V4L2_STD_DK) { |
58 | priv->sgIF = 124; |
59 | mode = "DK" ; |
60 | } else if (params->std & V4L2_STD_SECAM_L) { |
61 | priv->sgIF = 124; |
62 | mode = "L" ; |
63 | } else if (params->std & V4L2_STD_SECAM_LC) { |
64 | priv->sgIF = 20; |
65 | mode = "LC" ; |
66 | } else { |
67 | priv->sgIF = 124; |
68 | mode = "xx" ; |
69 | } |
70 | |
71 | if (params->mode == V4L2_TUNER_RADIO) { |
72 | priv->sgIF = 88; /* if frequency is 5.5 MHz */ |
73 | dprintk("setting tda827x to radio FM\n" ); |
74 | } else |
75 | dprintk("setting tda827x to system %s\n" , mode); |
76 | } |
77 | |
78 | |
79 | /* ------------------------------------------------------------------ */ |
80 | |
81 | struct tda827x_data { |
82 | u32 lomax; |
83 | u8 spd; |
84 | u8 bs; |
85 | u8 bp; |
86 | u8 cp; |
87 | u8 gc3; |
88 | u8 div1p5; |
89 | }; |
90 | |
91 | static const struct tda827x_data tda827x_table[] = { |
92 | { .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, |
93 | { .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, |
94 | { .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, |
95 | { .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, |
96 | { .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
97 | { .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
98 | { .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
99 | { .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
100 | { .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
101 | { .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
102 | { .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
103 | { .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0}, |
104 | { .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
105 | { .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
106 | { .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
107 | { .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
108 | { .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
109 | { .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
110 | { .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
111 | { .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
112 | { .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
113 | { .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, |
114 | { .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, |
115 | { .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, |
116 | { .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, |
117 | { .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, |
118 | { .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, |
119 | { .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, |
120 | { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0} |
121 | }; |
122 | |
123 | static int tuner_transfer(struct dvb_frontend *fe, |
124 | struct i2c_msg *msg, |
125 | const int size) |
126 | { |
127 | int rc; |
128 | struct tda827x_priv *priv = fe->tuner_priv; |
129 | |
130 | if (fe->ops.i2c_gate_ctrl) |
131 | fe->ops.i2c_gate_ctrl(fe, 1); |
132 | rc = i2c_transfer(adap: priv->i2c_adap, msgs: msg, num: size); |
133 | if (fe->ops.i2c_gate_ctrl) |
134 | fe->ops.i2c_gate_ctrl(fe, 0); |
135 | |
136 | if (rc >= 0 && rc != size) |
137 | return -EIO; |
138 | |
139 | return rc; |
140 | } |
141 | |
142 | static int tda827xo_set_params(struct dvb_frontend *fe) |
143 | { |
144 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
145 | struct tda827x_priv *priv = fe->tuner_priv; |
146 | u8 buf[14]; |
147 | int rc; |
148 | |
149 | struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
150 | .buf = buf, .len = sizeof(buf) }; |
151 | int i, tuner_freq, if_freq; |
152 | u32 N; |
153 | |
154 | dprintk("%s:\n" , __func__); |
155 | if (c->bandwidth_hz == 0) { |
156 | if_freq = 5000000; |
157 | } else if (c->bandwidth_hz <= 6000000) { |
158 | if_freq = 4000000; |
159 | } else if (c->bandwidth_hz <= 7000000) { |
160 | if_freq = 4500000; |
161 | } else { /* 8 MHz */ |
162 | if_freq = 5000000; |
163 | } |
164 | tuner_freq = c->frequency; |
165 | |
166 | i = 0; |
167 | while (tda827x_table[i].lomax < tuner_freq) { |
168 | if (tda827x_table[i + 1].lomax == 0) |
169 | break; |
170 | i++; |
171 | } |
172 | |
173 | tuner_freq += if_freq; |
174 | |
175 | N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2); |
176 | buf[0] = 0; |
177 | buf[1] = (N>>8) | 0x40; |
178 | buf[2] = N & 0xff; |
179 | buf[3] = 0; |
180 | buf[4] = 0x52; |
181 | buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) + |
182 | (tda827x_table[i].bs << 3) + |
183 | tda827x_table[i].bp; |
184 | buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f; |
185 | buf[7] = 0xbf; |
186 | buf[8] = 0x2a; |
187 | buf[9] = 0x05; |
188 | buf[10] = 0xff; |
189 | buf[11] = 0x00; |
190 | buf[12] = 0x00; |
191 | buf[13] = 0x40; |
192 | |
193 | msg.len = 14; |
194 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
195 | if (rc < 0) |
196 | goto err; |
197 | |
198 | msleep(msecs: 500); |
199 | /* correct CP value */ |
200 | buf[0] = 0x30; |
201 | buf[1] = 0x50 + tda827x_table[i].cp; |
202 | msg.len = 2; |
203 | |
204 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
205 | if (rc < 0) |
206 | goto err; |
207 | |
208 | priv->frequency = c->frequency; |
209 | priv->bandwidth = c->bandwidth_hz; |
210 | |
211 | return 0; |
212 | |
213 | err: |
214 | printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n" , |
215 | __func__, priv->i2c_addr << 1); |
216 | return rc; |
217 | } |
218 | |
219 | static int tda827xo_sleep(struct dvb_frontend *fe) |
220 | { |
221 | struct tda827x_priv *priv = fe->tuner_priv; |
222 | static u8 buf[] = { 0x30, 0xd0 }; |
223 | struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
224 | .buf = buf, .len = sizeof(buf) }; |
225 | |
226 | dprintk("%s:\n" , __func__); |
227 | tuner_transfer(fe, msg: &msg, size: 1); |
228 | |
229 | if (priv->cfg && priv->cfg->sleep) |
230 | priv->cfg->sleep(fe); |
231 | |
232 | return 0; |
233 | } |
234 | |
235 | /* ------------------------------------------------------------------ */ |
236 | |
237 | static int tda827xo_set_analog_params(struct dvb_frontend *fe, |
238 | struct analog_parameters *params) |
239 | { |
240 | unsigned char tuner_reg[8]; |
241 | unsigned char reg2[2]; |
242 | u32 N; |
243 | int i; |
244 | struct tda827x_priv *priv = fe->tuner_priv; |
245 | struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 }; |
246 | unsigned int freq = params->frequency; |
247 | |
248 | tda827x_set_std(fe, params); |
249 | |
250 | if (params->mode == V4L2_TUNER_RADIO) |
251 | freq = freq / 1000; |
252 | |
253 | N = freq + priv->sgIF; |
254 | |
255 | i = 0; |
256 | while (tda827x_table[i].lomax < N * 62500) { |
257 | if (tda827x_table[i + 1].lomax == 0) |
258 | break; |
259 | i++; |
260 | } |
261 | |
262 | N = N << tda827x_table[i].spd; |
263 | |
264 | tuner_reg[0] = 0; |
265 | tuner_reg[1] = (unsigned char)(N>>8); |
266 | tuner_reg[2] = (unsigned char) N; |
267 | tuner_reg[3] = 0x40; |
268 | tuner_reg[4] = 0x52 + (priv->lpsel << 5); |
269 | tuner_reg[5] = (tda827x_table[i].spd << 6) + |
270 | (tda827x_table[i].div1p5 << 5) + |
271 | (tda827x_table[i].bs << 3) + tda827x_table[i].bp; |
272 | tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4); |
273 | tuner_reg[7] = 0x8f; |
274 | |
275 | msg.buf = tuner_reg; |
276 | msg.len = 8; |
277 | tuner_transfer(fe, msg: &msg, size: 1); |
278 | |
279 | msg.buf = reg2; |
280 | msg.len = 2; |
281 | reg2[0] = 0x80; |
282 | reg2[1] = 0; |
283 | tuner_transfer(fe, msg: &msg, size: 1); |
284 | |
285 | reg2[0] = 0x60; |
286 | reg2[1] = 0xbf; |
287 | tuner_transfer(fe, msg: &msg, size: 1); |
288 | |
289 | reg2[0] = 0x30; |
290 | reg2[1] = tuner_reg[4] + 0x80; |
291 | tuner_transfer(fe, msg: &msg, size: 1); |
292 | |
293 | msleep(msecs: 1); |
294 | reg2[0] = 0x30; |
295 | reg2[1] = tuner_reg[4] + 4; |
296 | tuner_transfer(fe, msg: &msg, size: 1); |
297 | |
298 | msleep(msecs: 1); |
299 | reg2[0] = 0x30; |
300 | reg2[1] = tuner_reg[4]; |
301 | tuner_transfer(fe, msg: &msg, size: 1); |
302 | |
303 | msleep(msecs: 550); |
304 | reg2[0] = 0x30; |
305 | reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp; |
306 | tuner_transfer(fe, msg: &msg, size: 1); |
307 | |
308 | reg2[0] = 0x60; |
309 | reg2[1] = 0x3f; |
310 | tuner_transfer(fe, msg: &msg, size: 1); |
311 | |
312 | reg2[0] = 0x80; |
313 | reg2[1] = 0x08; /* Vsync en */ |
314 | tuner_transfer(fe, msg: &msg, size: 1); |
315 | |
316 | priv->frequency = params->frequency; |
317 | |
318 | return 0; |
319 | } |
320 | |
321 | static void tda827xo_agcf(struct dvb_frontend *fe) |
322 | { |
323 | struct tda827x_priv *priv = fe->tuner_priv; |
324 | unsigned char data[] = { 0x80, 0x0c }; |
325 | struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
326 | .buf = data, .len = 2}; |
327 | |
328 | tuner_transfer(fe, msg: &msg, size: 1); |
329 | } |
330 | |
331 | /* ------------------------------------------------------------------ */ |
332 | |
333 | struct tda827xa_data { |
334 | u32 lomax; |
335 | u8 svco; |
336 | u8 spd; |
337 | u8 scr; |
338 | u8 sbs; |
339 | u8 gc3; |
340 | }; |
341 | |
342 | static struct tda827xa_data tda827xa_dvbt[] = { |
343 | { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1}, |
344 | { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, |
345 | { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, |
346 | { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, |
347 | { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1}, |
348 | { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
349 | { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
350 | { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
351 | { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
352 | { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1}, |
353 | { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1}, |
354 | { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, |
355 | { .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, |
356 | { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, |
357 | { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, |
358 | { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, |
359 | { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, |
360 | { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1}, |
361 | { .lomax = 550000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, |
362 | { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
363 | { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
364 | { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
365 | { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
366 | { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
367 | { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
368 | { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0}, |
369 | { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0} |
370 | }; |
371 | |
372 | static struct tda827xa_data tda827xa_dvbc[] = { |
373 | { .lomax = 50125000, .svco = 2, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3}, |
374 | { .lomax = 58500000, .svco = 3, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3}, |
375 | { .lomax = 69250000, .svco = 0, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, |
376 | { .lomax = 83625000, .svco = 1, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, |
377 | { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, |
378 | { .lomax = 100250000, .svco = 2, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1}, |
379 | { .lomax = 117000000, .svco = 3, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1}, |
380 | { .lomax = 138500000, .svco = 0, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1}, |
381 | { .lomax = 167250000, .svco = 1, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1}, |
382 | { .lomax = 187000000, .svco = 2, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1}, |
383 | { .lomax = 200500000, .svco = 2, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 1}, |
384 | { .lomax = 234000000, .svco = 3, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 3}, |
385 | { .lomax = 277000000, .svco = 0, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 3}, |
386 | { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 1}, |
387 | { .lomax = 334500000, .svco = 1, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3}, |
388 | { .lomax = 401000000, .svco = 2, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3}, |
389 | { .lomax = 468000000, .svco = 3, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 1}, |
390 | { .lomax = 535000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1}, |
391 | { .lomax = 554000000, .svco = 0, .spd = 0, .scr = 2, .sbs = 3, .gc3 = 1}, |
392 | { .lomax = 638000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, |
393 | { .lomax = 669000000, .svco = 1, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, |
394 | { .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, |
395 | { .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, |
396 | { .lomax = 835000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, |
397 | { .lomax = 885000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, |
398 | { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, |
399 | { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0} |
400 | }; |
401 | |
402 | static struct tda827xa_data tda827xa_analog[] = { |
403 | { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3}, |
404 | { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, |
405 | { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, |
406 | { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, |
407 | { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1}, |
408 | { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
409 | { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
410 | { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
411 | { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, |
412 | { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1}, |
413 | { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3}, |
414 | { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3}, |
415 | { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, |
416 | { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3}, |
417 | { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3}, |
418 | { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, |
419 | { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1}, |
420 | { .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, |
421 | { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
422 | { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
423 | { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
424 | { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
425 | { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, |
426 | { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, |
427 | { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0}, |
428 | { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0} |
429 | }; |
430 | |
431 | static int tda827xa_sleep(struct dvb_frontend *fe) |
432 | { |
433 | struct tda827x_priv *priv = fe->tuner_priv; |
434 | static u8 buf[] = { 0x30, 0x90 }; |
435 | struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
436 | .buf = buf, .len = sizeof(buf) }; |
437 | |
438 | dprintk("%s:\n" , __func__); |
439 | |
440 | tuner_transfer(fe, msg: &msg, size: 1); |
441 | |
442 | if (priv->cfg && priv->cfg->sleep) |
443 | priv->cfg->sleep(fe); |
444 | |
445 | return 0; |
446 | } |
447 | |
448 | static void tda827xa_lna_gain(struct dvb_frontend *fe, int high, |
449 | struct analog_parameters *params) |
450 | { |
451 | struct tda827x_priv *priv = fe->tuner_priv; |
452 | unsigned char buf[] = {0x22, 0x01}; |
453 | int arg; |
454 | int gp_func; |
455 | struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) }; |
456 | |
457 | if (NULL == priv->cfg) { |
458 | dprintk("tda827x_config not defined, cannot set LNA gain!\n" ); |
459 | return; |
460 | } |
461 | msg.addr = priv->cfg->switch_addr; |
462 | if (priv->cfg->config) { |
463 | if (high) |
464 | dprintk("setting LNA to high gain\n" ); |
465 | else |
466 | dprintk("setting LNA to low gain\n" ); |
467 | } |
468 | switch (priv->cfg->config) { |
469 | case TDA8290_LNA_OFF: /* no LNA */ |
470 | break; |
471 | case TDA8290_LNA_GP0_HIGH_ON: /* switch is GPIO 0 of tda8290 */ |
472 | case TDA8290_LNA_GP0_HIGH_OFF: |
473 | if (params == NULL) { |
474 | gp_func = 0; |
475 | arg = 0; |
476 | } else { |
477 | /* turn Vsync on */ |
478 | gp_func = 1; |
479 | if (params->std & V4L2_STD_MN) |
480 | arg = 1; |
481 | else |
482 | arg = 0; |
483 | } |
484 | if (fe->callback) |
485 | fe->callback(priv->i2c_adap->algo_data, |
486 | DVB_FRONTEND_COMPONENT_TUNER, |
487 | gp_func, arg); |
488 | buf[1] = high ? 0 : 1; |
489 | if (priv->cfg->config == TDA8290_LNA_GP0_HIGH_OFF) |
490 | buf[1] = high ? 1 : 0; |
491 | tuner_transfer(fe, msg: &msg, size: 1); |
492 | break; |
493 | case TDA8290_LNA_ON_BRIDGE: /* switch with GPIO of saa713x */ |
494 | if (fe->callback) |
495 | fe->callback(priv->i2c_adap->algo_data, |
496 | DVB_FRONTEND_COMPONENT_TUNER, 0, high); |
497 | break; |
498 | } |
499 | } |
500 | |
501 | static int tda827xa_set_params(struct dvb_frontend *fe) |
502 | { |
503 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
504 | struct tda827x_priv *priv = fe->tuner_priv; |
505 | struct tda827xa_data *frequency_map = tda827xa_dvbt; |
506 | u8 buf[11]; |
507 | |
508 | struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
509 | .buf = buf, .len = sizeof(buf) }; |
510 | |
511 | int i, tuner_freq, if_freq, rc; |
512 | u32 N; |
513 | |
514 | dprintk("%s:\n" , __func__); |
515 | |
516 | tda827xa_lna_gain(fe, high: 1, NULL); |
517 | msleep(msecs: 20); |
518 | |
519 | if (c->bandwidth_hz == 0) { |
520 | if_freq = 5000000; |
521 | } else if (c->bandwidth_hz <= 6000000) { |
522 | if_freq = 4000000; |
523 | } else if (c->bandwidth_hz <= 7000000) { |
524 | if_freq = 4500000; |
525 | } else { /* 8 MHz */ |
526 | if_freq = 5000000; |
527 | } |
528 | tuner_freq = c->frequency; |
529 | |
530 | switch (c->delivery_system) { |
531 | case SYS_DVBC_ANNEX_A: |
532 | case SYS_DVBC_ANNEX_C: |
533 | dprintk("%s select tda827xa_dvbc\n" , __func__); |
534 | frequency_map = tda827xa_dvbc; |
535 | break; |
536 | default: |
537 | break; |
538 | } |
539 | |
540 | i = 0; |
541 | while (frequency_map[i].lomax < tuner_freq) { |
542 | if (frequency_map[i + 1].lomax == 0) |
543 | break; |
544 | i++; |
545 | } |
546 | |
547 | tuner_freq += if_freq; |
548 | |
549 | N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd; |
550 | buf[0] = 0; // subaddress |
551 | buf[1] = N >> 8; |
552 | buf[2] = N & 0xff; |
553 | buf[3] = 0; |
554 | buf[4] = 0x16; |
555 | buf[5] = (frequency_map[i].spd << 5) + (frequency_map[i].svco << 3) + |
556 | frequency_map[i].sbs; |
557 | buf[6] = 0x4b + (frequency_map[i].gc3 << 4); |
558 | buf[7] = 0x1c; |
559 | buf[8] = 0x06; |
560 | buf[9] = 0x24; |
561 | buf[10] = 0x00; |
562 | msg.len = 11; |
563 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
564 | if (rc < 0) |
565 | goto err; |
566 | |
567 | buf[0] = 0x90; |
568 | buf[1] = 0xff; |
569 | buf[2] = 0x60; |
570 | buf[3] = 0x00; |
571 | buf[4] = 0x59; // lpsel, for 6MHz + 2 |
572 | msg.len = 5; |
573 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
574 | if (rc < 0) |
575 | goto err; |
576 | |
577 | buf[0] = 0xa0; |
578 | buf[1] = 0x40; |
579 | msg.len = 2; |
580 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
581 | if (rc < 0) |
582 | goto err; |
583 | |
584 | msleep(msecs: 11); |
585 | msg.flags = I2C_M_RD; |
586 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
587 | if (rc < 0) |
588 | goto err; |
589 | msg.flags = 0; |
590 | |
591 | buf[1] >>= 4; |
592 | dprintk("tda8275a AGC2 gain is: %d\n" , buf[1]); |
593 | if ((buf[1]) < 2) { |
594 | tda827xa_lna_gain(fe, high: 0, NULL); |
595 | buf[0] = 0x60; |
596 | buf[1] = 0x0c; |
597 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
598 | if (rc < 0) |
599 | goto err; |
600 | } |
601 | |
602 | buf[0] = 0xc0; |
603 | buf[1] = 0x99; // lpsel, for 6MHz + 2 |
604 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
605 | if (rc < 0) |
606 | goto err; |
607 | |
608 | buf[0] = 0x60; |
609 | buf[1] = 0x3c; |
610 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
611 | if (rc < 0) |
612 | goto err; |
613 | |
614 | /* correct CP value */ |
615 | buf[0] = 0x30; |
616 | buf[1] = 0x10 + frequency_map[i].scr; |
617 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
618 | if (rc < 0) |
619 | goto err; |
620 | |
621 | msleep(msecs: 163); |
622 | buf[0] = 0xc0; |
623 | buf[1] = 0x39; // lpsel, for 6MHz + 2 |
624 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
625 | if (rc < 0) |
626 | goto err; |
627 | |
628 | msleep(msecs: 3); |
629 | /* freeze AGC1 */ |
630 | buf[0] = 0x50; |
631 | buf[1] = 0x4f + (frequency_map[i].gc3 << 4); |
632 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
633 | if (rc < 0) |
634 | goto err; |
635 | |
636 | priv->frequency = c->frequency; |
637 | priv->bandwidth = c->bandwidth_hz; |
638 | |
639 | return 0; |
640 | |
641 | err: |
642 | printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n" , |
643 | __func__, priv->i2c_addr << 1); |
644 | return rc; |
645 | } |
646 | |
647 | |
648 | static int tda827xa_set_analog_params(struct dvb_frontend *fe, |
649 | struct analog_parameters *params) |
650 | { |
651 | unsigned char tuner_reg[11]; |
652 | u32 N; |
653 | int i; |
654 | struct tda827x_priv *priv = fe->tuner_priv; |
655 | struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, |
656 | .buf = tuner_reg, .len = sizeof(tuner_reg) }; |
657 | unsigned int freq = params->frequency; |
658 | |
659 | tda827x_set_std(fe, params); |
660 | |
661 | tda827xa_lna_gain(fe, high: 1, params); |
662 | msleep(msecs: 10); |
663 | |
664 | if (params->mode == V4L2_TUNER_RADIO) |
665 | freq = freq / 1000; |
666 | |
667 | N = freq + priv->sgIF; |
668 | |
669 | i = 0; |
670 | while (tda827xa_analog[i].lomax < N * 62500) { |
671 | if (tda827xa_analog[i + 1].lomax == 0) |
672 | break; |
673 | i++; |
674 | } |
675 | |
676 | N = N << tda827xa_analog[i].spd; |
677 | |
678 | tuner_reg[0] = 0; |
679 | tuner_reg[1] = (unsigned char)(N>>8); |
680 | tuner_reg[2] = (unsigned char) N; |
681 | tuner_reg[3] = 0; |
682 | tuner_reg[4] = 0x16; |
683 | tuner_reg[5] = (tda827xa_analog[i].spd << 5) + |
684 | (tda827xa_analog[i].svco << 3) + |
685 | tda827xa_analog[i].sbs; |
686 | tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4); |
687 | tuner_reg[7] = 0x1c; |
688 | tuner_reg[8] = 4; |
689 | tuner_reg[9] = 0x20; |
690 | tuner_reg[10] = 0x00; |
691 | msg.len = 11; |
692 | tuner_transfer(fe, msg: &msg, size: 1); |
693 | |
694 | tuner_reg[0] = 0x90; |
695 | tuner_reg[1] = 0xff; |
696 | tuner_reg[2] = 0xe0; |
697 | tuner_reg[3] = 0; |
698 | tuner_reg[4] = 0x99 + (priv->lpsel << 1); |
699 | msg.len = 5; |
700 | tuner_transfer(fe, msg: &msg, size: 1); |
701 | |
702 | tuner_reg[0] = 0xa0; |
703 | tuner_reg[1] = 0xc0; |
704 | msg.len = 2; |
705 | tuner_transfer(fe, msg: &msg, size: 1); |
706 | |
707 | tuner_reg[0] = 0x30; |
708 | tuner_reg[1] = 0x10 + tda827xa_analog[i].scr; |
709 | tuner_transfer(fe, msg: &msg, size: 1); |
710 | |
711 | msg.flags = I2C_M_RD; |
712 | tuner_transfer(fe, msg: &msg, size: 1); |
713 | msg.flags = 0; |
714 | tuner_reg[1] >>= 4; |
715 | dprintk("AGC2 gain is: %d\n" , tuner_reg[1]); |
716 | if (tuner_reg[1] < 1) |
717 | tda827xa_lna_gain(fe, high: 0, params); |
718 | |
719 | msleep(msecs: 100); |
720 | tuner_reg[0] = 0x60; |
721 | tuner_reg[1] = 0x3c; |
722 | tuner_transfer(fe, msg: &msg, size: 1); |
723 | |
724 | msleep(msecs: 163); |
725 | tuner_reg[0] = 0x50; |
726 | tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4); |
727 | tuner_transfer(fe, msg: &msg, size: 1); |
728 | |
729 | tuner_reg[0] = 0x80; |
730 | tuner_reg[1] = 0x28; |
731 | tuner_transfer(fe, msg: &msg, size: 1); |
732 | |
733 | tuner_reg[0] = 0xb0; |
734 | tuner_reg[1] = 0x01; |
735 | tuner_transfer(fe, msg: &msg, size: 1); |
736 | |
737 | tuner_reg[0] = 0xc0; |
738 | tuner_reg[1] = 0x19 + (priv->lpsel << 1); |
739 | tuner_transfer(fe, msg: &msg, size: 1); |
740 | |
741 | priv->frequency = params->frequency; |
742 | |
743 | return 0; |
744 | } |
745 | |
746 | static void tda827xa_agcf(struct dvb_frontend *fe) |
747 | { |
748 | struct tda827x_priv *priv = fe->tuner_priv; |
749 | unsigned char data[] = {0x80, 0x2c}; |
750 | struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0, |
751 | .buf = data, .len = 2}; |
752 | tuner_transfer(fe, msg: &msg, size: 1); |
753 | } |
754 | |
755 | /* ------------------------------------------------------------------ */ |
756 | |
757 | static void tda827x_release(struct dvb_frontend *fe) |
758 | { |
759 | kfree(objp: fe->tuner_priv); |
760 | fe->tuner_priv = NULL; |
761 | } |
762 | |
763 | static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency) |
764 | { |
765 | struct tda827x_priv *priv = fe->tuner_priv; |
766 | *frequency = priv->frequency; |
767 | return 0; |
768 | } |
769 | |
770 | static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) |
771 | { |
772 | struct tda827x_priv *priv = fe->tuner_priv; |
773 | *bandwidth = priv->bandwidth; |
774 | return 0; |
775 | } |
776 | |
777 | static int tda827x_init(struct dvb_frontend *fe) |
778 | { |
779 | struct tda827x_priv *priv = fe->tuner_priv; |
780 | dprintk("%s:\n" , __func__); |
781 | if (priv->cfg && priv->cfg->init) |
782 | priv->cfg->init(fe); |
783 | |
784 | return 0; |
785 | } |
786 | |
787 | static int tda827x_probe_version(struct dvb_frontend *fe); |
788 | |
789 | static int tda827x_initial_init(struct dvb_frontend *fe) |
790 | { |
791 | int ret; |
792 | ret = tda827x_probe_version(fe); |
793 | if (ret) |
794 | return ret; |
795 | return fe->ops.tuner_ops.init(fe); |
796 | } |
797 | |
798 | static int tda827x_initial_sleep(struct dvb_frontend *fe) |
799 | { |
800 | int ret; |
801 | ret = tda827x_probe_version(fe); |
802 | if (ret) |
803 | return ret; |
804 | return fe->ops.tuner_ops.sleep(fe); |
805 | } |
806 | |
807 | static const struct dvb_tuner_ops tda827xo_tuner_ops = { |
808 | .info = { |
809 | .name = "Philips TDA827X" , |
810 | .frequency_min_hz = 55 * MHz, |
811 | .frequency_max_hz = 860 * MHz, |
812 | .frequency_step_hz = 250 * kHz |
813 | }, |
814 | .release = tda827x_release, |
815 | .init = tda827x_initial_init, |
816 | .sleep = tda827x_initial_sleep, |
817 | .set_params = tda827xo_set_params, |
818 | .set_analog_params = tda827xo_set_analog_params, |
819 | .get_frequency = tda827x_get_frequency, |
820 | .get_bandwidth = tda827x_get_bandwidth, |
821 | }; |
822 | |
823 | static const struct dvb_tuner_ops tda827xa_tuner_ops = { |
824 | .info = { |
825 | .name = "Philips TDA827XA" , |
826 | .frequency_min_hz = 44 * MHz, |
827 | .frequency_max_hz = 906 * MHz, |
828 | .frequency_step_hz = 62500 |
829 | }, |
830 | .release = tda827x_release, |
831 | .init = tda827x_init, |
832 | .sleep = tda827xa_sleep, |
833 | .set_params = tda827xa_set_params, |
834 | .set_analog_params = tda827xa_set_analog_params, |
835 | .get_frequency = tda827x_get_frequency, |
836 | .get_bandwidth = tda827x_get_bandwidth, |
837 | }; |
838 | |
839 | static int tda827x_probe_version(struct dvb_frontend *fe) |
840 | { |
841 | u8 data; |
842 | int rc; |
843 | struct tda827x_priv *priv = fe->tuner_priv; |
844 | struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD, |
845 | .buf = &data, .len = 1 }; |
846 | |
847 | rc = tuner_transfer(fe, msg: &msg, size: 1); |
848 | |
849 | if (rc < 0) { |
850 | printk("%s: could not read from tuner at addr: 0x%02x\n" , |
851 | __func__, msg.addr << 1); |
852 | return rc; |
853 | } |
854 | if ((data & 0x3c) == 0) { |
855 | dprintk("tda827x tuner found\n" ); |
856 | fe->ops.tuner_ops.init = tda827x_init; |
857 | fe->ops.tuner_ops.sleep = tda827xo_sleep; |
858 | if (priv->cfg) |
859 | priv->cfg->agcf = tda827xo_agcf; |
860 | } else { |
861 | dprintk("tda827xa tuner found\n" ); |
862 | memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops)); |
863 | if (priv->cfg) |
864 | priv->cfg->agcf = tda827xa_agcf; |
865 | } |
866 | return 0; |
867 | } |
868 | |
869 | struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr, |
870 | struct i2c_adapter *i2c, |
871 | struct tda827x_config *cfg) |
872 | { |
873 | struct tda827x_priv *priv = NULL; |
874 | |
875 | dprintk("%s:\n" , __func__); |
876 | priv = kzalloc(size: sizeof(struct tda827x_priv), GFP_KERNEL); |
877 | if (priv == NULL) |
878 | return NULL; |
879 | |
880 | priv->i2c_addr = addr; |
881 | priv->i2c_adap = i2c; |
882 | priv->cfg = cfg; |
883 | memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops)); |
884 | fe->tuner_priv = priv; |
885 | |
886 | dprintk("type set to %s\n" , fe->ops.tuner_ops.info.name); |
887 | |
888 | return fe; |
889 | } |
890 | EXPORT_SYMBOL_GPL(tda827x_attach); |
891 | |
892 | MODULE_DESCRIPTION("DVB TDA827x driver" ); |
893 | MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>" ); |
894 | MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>" ); |
895 | MODULE_LICENSE("GPL" ); |
896 | |