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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [media/] [video/] [tda8290.c] - Blame information for rev 62

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Line No. Rev Author Line
1 62 marcus.erl 
/*
2 
 
3 
   i2c tv tuner chip device driver
4 
   controls the philips tda8290+75 tuner chip combo.
5 
 
6 
   This program is free software; you can redistribute it and/or modify
7 
   it under the terms of the GNU General Public License as published by
8 
   the Free Software Foundation; either version 2 of the License, or
9 
   (at your option) any later version.
10 
 
11 
   This program is distributed in the hope that it will be useful,
12 
   but WITHOUT ANY WARRANTY; without even the implied warranty of
13 
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 
   GNU General Public License for more details.
15 
 
16 
   You should have received a copy of the GNU General Public License
17 
   along with this program; if not, write to the Free Software
18 
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 
 
20 
   This "tda8290" module was split apart from the original "tuner" module.
21 
*/
22 
 
23 
#include <linux/i2c.h>
24 
#include <linux/delay.h>
25 
#include <linux/videodev.h>
26 
#include "tuner-i2c.h"
27 
#include "tda8290.h"
28 
 
29 
static int debug = 0;
30 
module_param(debug, int, 0644);
31 
MODULE_PARM_DESC(debug, "enable verbose debug messages");
32 
 
33 
#define PREFIX "tda8290 "
34 
 
35 
/* ---------------------------------------------------------------------- */
36 
 
37 
struct tda8290_priv {
38 
        struct tuner_i2c_props i2c_props;
39 
 
40 
        unsigned char tda8290_easy_mode;
41 
        unsigned char tda827x_lpsel;
42 
        unsigned char tda827x_addr;
43 
        unsigned char tda827x_ver;
44 
        unsigned int sgIF;
45 
 
46 
        u32 frequency;
47 
 
48 
        unsigned int *lna_cfg;
49 
        int (*tuner_callback) (void *dev, int command,int arg);
50 
};
51 
 
52 
/* ---------------------------------------------------------------------- */
53 
 
54 
struct tda827x_data {
55 
        u32 lomax;
56 
        u8  spd;
57 
        u8  bs;
58 
        u8  bp;
59 
        u8  cp;
60 
        u8  gc3;
61 
        u8 div1p5;
62 
};
63 
 
64 
     /* Note lomax entry is lo / 62500 */
65 
 
66 
static struct tda827x_data tda827x_analog[] = {
67 
        { .lomax =   992, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, /*  62 MHz */
68 
        { .lomax =  1056, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, /*  66 MHz */
69 
        { .lomax =  1216, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, /*  76 MHz */
70 
        { .lomax =  1344, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, /*  84 MHz */
71 
        { .lomax =  1488, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, /*  93 MHz */
72 
        { .lomax =  1568, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, /*  98 MHz */
73 
        { .lomax =  1744, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 109 MHz */
74 
        { .lomax =  1968, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 123 MHz */
75 
        { .lomax =  2128, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 133 MHz */
76 
        { .lomax =  2416, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 151 MHz */
77 
        { .lomax =  2464, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 154 MHz */
78 
        { .lomax =  2896, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 181 MHz */
79 
        { .lomax =  2960, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 185 MHz */
80 
        { .lomax =  3472, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 217 MHz */
81 
        { .lomax =  3904, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 244 MHz */
82 
        { .lomax =  4240, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 265 MHz */
83 
        { .lomax =  4832, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 302 MHz */
84 
        { .lomax =  5184, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 324 MHz */
85 
        { .lomax =  5920, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 370 MHz */
86 
        { .lomax =  7264, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 454 MHz */
87 
        { .lomax =  7888, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 493 MHz */
88 
        { .lomax =  8480, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 530 MHz */
89 
        { .lomax =  8864, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 554 MHz */
90 
        { .lomax =  9664, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 604 MHz */
91 
        { .lomax = 11088, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 696 MHz */
92 
        { .lomax = 11840, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, /* 740 MHz */
93 
        { .lomax = 13120, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 820 MHz */
94 
        { .lomax = 13840, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, /* 865 MHz */
95 
        { .lomax =     0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0}  /* End      */
96 
};
97 
 
98 
static void tda827x_set_analog_params(struct dvb_frontend *fe,
99 
                                      struct analog_parameters *params)
100 
{
101 
        unsigned char tuner_reg[8];
102 
        unsigned char reg2[2];
103 
        u32 N;
104 
        int i;
105 
        struct tda8290_priv *priv = fe->tuner_priv;
106 
        struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags = 0};
107 
        unsigned int freq = params->frequency;
108 
 
109 
        if (params->mode == V4L2_TUNER_RADIO)
110 
                freq = freq / 1000;
111 
 
112 
        N = freq + priv->sgIF;
113 
        i = 0;
114 
        while (tda827x_analog[i].lomax < N) {
115 
                if(tda827x_analog[i + 1].lomax == 0)
116 
                        break;
117 
                i++;
118 
        }
119 
 
120 
        N = N << tda827x_analog[i].spd;
121 
 
122 
        tuner_reg[0] = 0;
123 
        tuner_reg[1] = (unsigned char)(N>>8);
124 
        tuner_reg[2] = (unsigned char) N;
125 
        tuner_reg[3] = 0x40;
126 
        tuner_reg[4] = 0x52 + (priv->tda827x_lpsel << 5);
127 
        tuner_reg[5] = (tda827x_analog[i].spd   << 6) + (tda827x_analog[i].div1p5 <<5) +
128 
                       (tda827x_analog[i].bs     <<3) +  tda827x_analog[i].bp;
129 
        tuner_reg[6] = 0x8f + (tda827x_analog[i].gc3 << 4);
130 
        tuner_reg[7] = 0x8f;
131 
 
132 
        msg.buf = tuner_reg;
133 
        msg.len = 8;
134 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
135 
 
136 
        msg.buf= reg2;
137 
        msg.len = 2;
138 
        reg2[0] = 0x80;
139 
        reg2[1] = 0;
140 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
141 
 
142 
        reg2[0] = 0x60;
143 
        reg2[1] = 0xbf;
144 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
145 
 
146 
        reg2[0] = 0x30;
147 
        reg2[1] = tuner_reg[4] + 0x80;
148 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
149 
 
150 
        msleep(1);
151 
        reg2[0] = 0x30;
152 
        reg2[1] = tuner_reg[4] + 4;
153 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
154 
 
155 
        msleep(1);
156 
        reg2[0] = 0x30;
157 
        reg2[1] = tuner_reg[4];
158 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
159 
 
160 
        msleep(550);
161 
        reg2[0] = 0x30;
162 
        reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_analog[i].cp ;
163 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
164 
 
165 
        reg2[0] = 0x60;
166 
        reg2[1] = 0x3f;
167 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
168 
 
169 
        reg2[0] = 0x80;
170 
        reg2[1] = 0x08;   // Vsync en
171 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
172 
}
173 
 
174 
static void tda827x_agcf(struct dvb_frontend *fe)
175 
{
176 
        struct tda8290_priv *priv = fe->tuner_priv;
177 
        unsigned char data[] = {0x80, 0x0c};
178 
        struct i2c_msg msg = {.addr = priv->tda827x_addr, .buf = data,
179 
                              .flags = 0, .len = 2};
180 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
181 
}
182 
 
183 
/* ---------------------------------------------------------------------- */
184 
 
185 
struct tda827xa_data {
186 
        u32 lomax;
187 
        u8  svco;
188 
        u8  spd;
189 
        u8  scr;
190 
        u8  sbs;
191 
        u8  gc3;
192 
};
193 
 
194 
static struct tda827xa_data tda827xa_analog[] = {
195 
        { .lomax =   910, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3},  /*  56.875 MHz */
196 
        { .lomax =  1076, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},  /*  67.25 MHz */
197 
        { .lomax =  1300, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},  /*  81.25 MHz */
198 
        { .lomax =  1560, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},  /*  97.5  MHz */
199 
        { .lomax =  1820, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},  /* 113.75 MHz */
200 
        { .lomax =  2152, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},  /* 134.5 MHz */
201 
        { .lomax =  2464, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},  /* 154   MHz */
202 
        { .lomax =  2600, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},  /* 162.5 MHz */
203 
        { .lomax =  2928, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},  /* 183   MHz */
204 
        { .lomax =  3120, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},  /* 195   MHz */
205 
        { .lomax =  3640, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3},  /* 227.5 MHz */
206 
        { .lomax =  4304, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3},  /* 269   MHz */
207 
        { .lomax =  5200, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},  /* 325   MHz */
208 
        { .lomax =  6240, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},  /* 390   MHz */
209 
        { .lomax =  7280, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},  /* 455   MHz */
210 
        { .lomax =  8320, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},  /* 520   MHz */
211 
        { .lomax =  8608, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},  /* 538   MHz */
212 
        { .lomax =  8864, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},  /* 554   MHz */
213 
        { .lomax =  9920, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},  /* 620   MHz */
214 
        { .lomax = 10400, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},  /* 650   MHz */
215 
        { .lomax = 11200, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},  /* 700   MHz */
216 
        { .lomax = 12480, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},  /* 780   MHz */
217 
        { .lomax = 13120, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},  /* 820   MHz */
218 
        { .lomax = 13920, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},  /* 870   MHz */
219 
        { .lomax = 14576, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},  /* 911   MHz */
220 
        { .lomax =     0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}   /* End */
221 
};
222 
 
223 
static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,
224 
                              struct analog_parameters *params)
225 
{
226 
        struct tda8290_priv *priv = fe->tuner_priv;
227 
        unsigned char buf[] = {0x22, 0x01};
228 
        int arg;
229 
        struct i2c_msg msg = {.addr = priv->i2c_props.addr, .flags = 0, .buf = buf, .len = sizeof(buf)};
230 
 
231 
        if ((priv->lna_cfg == NULL)  || (priv->tuner_callback == NULL))
232 
            return;
233 
 
234 
        if (*priv->lna_cfg) {
235 
                if (high)
236 
                        tuner_dbg("setting LNA to high gain\n");
237 
                else
238 
                        tuner_dbg("setting LNA to low gain\n");
239 
        }
240 
        switch (*priv->lna_cfg) {
241 
        case 0: /* no LNA */
242 
                break;
243 
        case 1: /* switch is GPIO 0 of tda8290 */
244 
        case 2:
245 
                /* turn Vsync on */
246 
                if (params->std & V4L2_STD_MN)
247 
                        arg = 1;
248 
                else
249 
                        arg = 0;
250 
                if (priv->tuner_callback)
251 
                        priv->tuner_callback(priv->i2c_props.adap->algo_data, 1, arg);
252 
                buf[1] = high ? 0 : 1;
253 
                if (*priv->lna_cfg == 2)
254 
                        buf[1] = high ? 1 : 0;
255 
                i2c_transfer(priv->i2c_props.adap, &msg, 1);
256 
                break;
257 
        case 3: /* switch with GPIO of saa713x */
258 
                if (priv->tuner_callback)
259 
                        priv->tuner_callback(priv->i2c_props.adap->algo_data, 0, high);
260 
                break;
261 
        }
262 
}
263 
 
264 
static void tda827xa_set_analog_params(struct dvb_frontend *fe,
265 
                                       struct analog_parameters *params)
266 
{
267 
        unsigned char tuner_reg[11];
268 
        u32 N;
269 
        int i;
270 
        struct tda8290_priv *priv = fe->tuner_priv;
271 
        struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags = 0, .buf = tuner_reg};
272 
        unsigned int freq = params->frequency;
273 
 
274 
        tda827xa_lna_gain(fe, 1, params);
275 
        msleep(10);
276 
 
277 
        if (params->mode == V4L2_TUNER_RADIO)
278 
                freq = freq / 1000;
279 
 
280 
        N = freq + priv->sgIF;
281 
        i = 0;
282 
        while (tda827xa_analog[i].lomax < N) {
283 
                if(tda827xa_analog[i + 1].lomax == 0)
284 
                        break;
285 
                i++;
286 
        }
287 
 
288 
        N = N << tda827xa_analog[i].spd;
289 
 
290 
        tuner_reg[0] = 0;
291 
        tuner_reg[1] = (unsigned char)(N>>8);
292 
        tuner_reg[2] = (unsigned char) N;
293 
        tuner_reg[3] = 0;
294 
        tuner_reg[4] = 0x16;
295 
        tuner_reg[5] = (tda827xa_analog[i].spd << 5) + (tda827xa_analog[i].svco << 3) +
296 
                        tda827xa_analog[i].sbs;
297 
        tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);
298 
        tuner_reg[7] = 0x1c;
299 
        tuner_reg[8] = 4;
300 
        tuner_reg[9] = 0x20;
301 
        tuner_reg[10] = 0x00;
302 
        msg.len = 11;
303 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
304 
 
305 
        tuner_reg[0] = 0x90;
306 
        tuner_reg[1] = 0xff;
307 
        tuner_reg[2] = 0xe0;
308 
        tuner_reg[3] = 0;
309 
        tuner_reg[4] = 0x99 + (priv->tda827x_lpsel << 1);
310 
        msg.len = 5;
311 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
312 
 
313 
        tuner_reg[0] = 0xa0;
314 
        tuner_reg[1] = 0xc0;
315 
        msg.len = 2;
316 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
317 
 
318 
        tuner_reg[0] = 0x30;
319 
        tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;
320 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
321 
 
322 
        msg.flags = I2C_M_RD;
323 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
324 
        msg.flags = 0;
325 
        tuner_reg[1] >>= 4;
326 
        tuner_dbg("AGC2 gain is: %d\n", tuner_reg[1]);
327 
        if (tuner_reg[1] < 1)
328 
                tda827xa_lna_gain(fe, 0, params);
329 
 
330 
        msleep(100);
331 
        tuner_reg[0] = 0x60;
332 
        tuner_reg[1] = 0x3c;
333 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
334 
 
335 
        msleep(163);
336 
        tuner_reg[0] = 0x50;
337 
        tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
338 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
339 
 
340 
        tuner_reg[0] = 0x80;
341 
        tuner_reg[1] = 0x28;
342 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
343 
 
344 
        tuner_reg[0] = 0xb0;
345 
        tuner_reg[1] = 0x01;
346 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
347 
 
348 
        tuner_reg[0] = 0xc0;
349 
        tuner_reg[1] = 0x19 + (priv->tda827x_lpsel << 1);
350 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
351 
}
352 
 
353 
static void tda827xa_agcf(struct dvb_frontend *fe)
354 
{
355 
        struct tda8290_priv *priv = fe->tuner_priv;
356 
        unsigned char data[] = {0x80, 0x2c};
357 
        struct i2c_msg msg = {.addr = priv->tda827x_addr, .buf = data,
358 
                              .flags = 0, .len = 2};
359 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
360 
}
361 
 
362 
/*---------------------------------------------------------------------*/
363 
 
364 
static void tda8290_i2c_bridge(struct dvb_frontend *fe, int close)
365 
{
366 
        struct tda8290_priv *priv = fe->tuner_priv;
367 
 
368 
        unsigned char  enable[2] = { 0x21, 0xC0 };
369 
        unsigned char disable[2] = { 0x21, 0x00 };
370 
        unsigned char *msg;
371 
        if(close) {
372 
                msg = enable;
373 
                tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
374 
                /* let the bridge stabilize */
375 
                msleep(20);
376 
        } else {
377 
                msg = disable;
378 
                tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
379 
        }
380 
}
381 
 
382 
/*---------------------------------------------------------------------*/
383 
 
384 
static void set_audio(struct dvb_frontend *fe,
385 
                      struct analog_parameters *params)
386 
{
387 
        struct tda8290_priv *priv = fe->tuner_priv;
388 
        char* mode;
389 
 
390 
        priv->tda827x_lpsel = 0;
391 
        if (params->std & V4L2_STD_MN) {
392 
                priv->sgIF = 92;
393 
                priv->tda8290_easy_mode = 0x01;
394 
                priv->tda827x_lpsel = 1;
395 
                mode = "MN";
396 
        } else if (params->std & V4L2_STD_B) {
397 
                priv->sgIF = 108;
398 
                priv->tda8290_easy_mode = 0x02;
399 
                mode = "B";
400 
        } else if (params->std & V4L2_STD_GH) {
401 
                priv->sgIF = 124;
402 
                priv->tda8290_easy_mode = 0x04;
403 
                mode = "GH";
404 
        } else if (params->std & V4L2_STD_PAL_I) {
405 
                priv->sgIF = 124;
406 
                priv->tda8290_easy_mode = 0x08;
407 
                mode = "I";
408 
        } else if (params->std & V4L2_STD_DK) {
409 
                priv->sgIF = 124;
410 
                priv->tda8290_easy_mode = 0x10;
411 
                mode = "DK";
412 
        } else if (params->std & V4L2_STD_SECAM_L) {
413 
                priv->sgIF = 124;
414 
                priv->tda8290_easy_mode = 0x20;
415 
                mode = "L";
416 
        } else if (params->std & V4L2_STD_SECAM_LC) {
417 
                priv->sgIF = 20;
418 
                priv->tda8290_easy_mode = 0x40;
419 
                mode = "LC";
420 
        } else {
421 
                priv->sgIF = 124;
422 
                priv->tda8290_easy_mode = 0x10;
423 
                mode = "xx";
424 
        }
425 
 
426 
        if (params->mode == V4L2_TUNER_RADIO)
427 
                priv->sgIF = 88; /* if frequency is 5.5 MHz */
428 
 
429 
        tuner_dbg("setting tda8290 to system %s\n", mode);
430 
}
431 
 
432 
static int tda8290_set_params(struct dvb_frontend *fe,
433 
                              struct analog_parameters *params)
434 
{
435 
        struct tda8290_priv *priv = fe->tuner_priv;
436 
        unsigned char soft_reset[]  = { 0x00, 0x00 };
437 
        unsigned char easy_mode[]   = { 0x01, priv->tda8290_easy_mode };
438 
        unsigned char expert_mode[] = { 0x01, 0x80 };
439 
        unsigned char agc_out_on[]  = { 0x02, 0x00 };
440 
        unsigned char gainset_off[] = { 0x28, 0x14 };
441 
        unsigned char if_agc_spd[]  = { 0x0f, 0x88 };
442 
        unsigned char adc_head_6[]  = { 0x05, 0x04 };
443 
        unsigned char adc_head_9[]  = { 0x05, 0x02 };
444 
        unsigned char adc_head_12[] = { 0x05, 0x01 };
445 
        unsigned char pll_bw_nom[]  = { 0x0d, 0x47 };
446 
        unsigned char pll_bw_low[]  = { 0x0d, 0x27 };
447 
        unsigned char gainset_2[]   = { 0x28, 0x64 };
448 
        unsigned char agc_rst_on[]  = { 0x0e, 0x0b };
449 
        unsigned char agc_rst_off[] = { 0x0e, 0x09 };
450 
        unsigned char if_agc_set[]  = { 0x0f, 0x81 };
451 
        unsigned char addr_adc_sat  = 0x1a;
452 
        unsigned char addr_agc_stat = 0x1d;
453 
        unsigned char addr_pll_stat = 0x1b;
454 
        unsigned char adc_sat, agc_stat,
455 
                      pll_stat;
456 
        int i;
457 
 
458 
        set_audio(fe, params);
459 
 
460 
        if (priv->lna_cfg)
461 
                tuner_dbg("tda827xa config is 0x%02x\n", *priv->lna_cfg);
462 
        tuner_i2c_xfer_send(&priv->i2c_props, easy_mode, 2);
463 
        tuner_i2c_xfer_send(&priv->i2c_props, agc_out_on, 2);
464 
        tuner_i2c_xfer_send(&priv->i2c_props, soft_reset, 2);
465 
        msleep(1);
466 
 
467 
        expert_mode[1] = priv->tda8290_easy_mode + 0x80;
468 
        tuner_i2c_xfer_send(&priv->i2c_props, expert_mode, 2);
469 
        tuner_i2c_xfer_send(&priv->i2c_props, gainset_off, 2);
470 
        tuner_i2c_xfer_send(&priv->i2c_props, if_agc_spd, 2);
471 
        if (priv->tda8290_easy_mode & 0x60)
472 
                tuner_i2c_xfer_send(&priv->i2c_props, adc_head_9, 2);
473 
        else
474 
                tuner_i2c_xfer_send(&priv->i2c_props, adc_head_6, 2);
475 
        tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_nom, 2);
476 
 
477 
        tda8290_i2c_bridge(fe, 1);
478 
        if (priv->tda827x_ver != 0)
479 
                tda827xa_set_analog_params(fe, params);
480 
        else
481 
                tda827x_set_analog_params(fe, params);
482 
        for (i = 0; i < 3; i++) {
483 
                tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
484 
                tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
485 
                if (pll_stat & 0x80) {
486 
                        tuner_i2c_xfer_send(&priv->i2c_props, &addr_adc_sat, 1);
487 
                        tuner_i2c_xfer_recv(&priv->i2c_props, &adc_sat, 1);
488 
                        tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
489 
                        tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
490 
                        tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat);
491 
                        break;
492 
                } else {
493 
                        tuner_dbg("tda8290 not locked, no signal?\n");
494 
                        msleep(100);
495 
                }
496 
        }
497 
        /* adjust headroom resp. gain */
498 
        if ((agc_stat > 115) || (!(pll_stat & 0x80) && (adc_sat < 20))) {
499 
                tuner_dbg("adjust gain, step 1. Agc: %d, ADC stat: %d, lock: %d\n",
500 
                           agc_stat, adc_sat, pll_stat & 0x80);
501 
                tuner_i2c_xfer_send(&priv->i2c_props, gainset_2, 2);
502 
                msleep(100);
503 
                tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
504 
                tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
505 
                tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
506 
                tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
507 
                if ((agc_stat > 115) || !(pll_stat & 0x80)) {
508 
                        tuner_dbg("adjust gain, step 2. Agc: %d, lock: %d\n",
509 
                                   agc_stat, pll_stat & 0x80);
510 
                        if (priv->tda827x_ver != 0)
511 
                                tda827xa_agcf(fe);
512 
                        else
513 
                                tda827x_agcf(fe);
514 
                        msleep(100);
515 
                        tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
516 
                        tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
517 
                        tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
518 
                        tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
519 
                        if((agc_stat > 115) || !(pll_stat & 0x80)) {
520 
                                tuner_dbg("adjust gain, step 3. Agc: %d\n", agc_stat);
521 
                                tuner_i2c_xfer_send(&priv->i2c_props, adc_head_12, 2);
522 
                                tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_low, 2);
523 
                                msleep(100);
524 
                        }
525 
                }
526 
        }
527 
 
528 
        /* l/ l' deadlock? */
529 
        if(priv->tda8290_easy_mode & 0x60) {
530 
                tuner_i2c_xfer_send(&priv->i2c_props, &addr_adc_sat, 1);
531 
                tuner_i2c_xfer_recv(&priv->i2c_props, &adc_sat, 1);
532 
                tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
533 
                tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
534 
                if ((adc_sat > 20) || !(pll_stat & 0x80)) {
535 
                        tuner_dbg("trying to resolve SECAM L deadlock\n");
536 
                        tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_on, 2);
537 
                        msleep(40);
538 
                        tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_off, 2);
539 
                }
540 
        }
541 
 
542 
        tda8290_i2c_bridge(fe, 0);
543 
        tuner_i2c_xfer_send(&priv->i2c_props, if_agc_set, 2);
544 
 
545 
        priv->frequency = (V4L2_TUNER_RADIO == params->mode) ?
546 
                params->frequency * 125 / 2 : params->frequency * 62500;
547 
 
548 
        return 0;
549 
}
550 
 
551 
/*---------------------------------------------------------------------*/
552 
 
553 
static int tda8290_has_signal(struct dvb_frontend *fe)
554 
{
555 
        struct tda8290_priv *priv = fe->tuner_priv;
556 
        int ret;
557 
 
558 
        unsigned char i2c_get_afc[1] = { 0x1B };
559 
        unsigned char afc = 0;
560 
 
561 
        /* for now, report based on afc status */
562 
        tuner_i2c_xfer_send(&priv->i2c_props, i2c_get_afc, ARRAY_SIZE(i2c_get_afc));
563 
        tuner_i2c_xfer_recv(&priv->i2c_props, &afc, 1);
564 
 
565 
        ret = (afc & 0x80) ? 65535 : 0;
566 
 
567 
        tuner_dbg("AFC status: %d\n", ret);
568 
 
569 
        return ret;
570 
}
571 
 
572 
static int tda8290_get_status(struct dvb_frontend *fe, u32 *status)
573 
{
574 
        *status = 0;
575 
 
576 
        if (tda8290_has_signal(fe))
577 
                *status = TUNER_STATUS_LOCKED;
578 
 
579 
        return 0;
580 
}
581 
 
582 
static int tda8290_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
583 
{
584 
        *strength = tda8290_has_signal(fe);
585 
 
586 
        return 0;
587 
}
588 
 
589 
/*---------------------------------------------------------------------*/
590 
 
591 
static int tda8290_standby(struct dvb_frontend *fe)
592 
{
593 
        struct tda8290_priv *priv = fe->tuner_priv;
594 
        unsigned char cb1[] = { 0x30, 0xD0 };
595 
        unsigned char tda8290_standby[] = { 0x00, 0x02 };
596 
        unsigned char tda8290_agc_tri[] = { 0x02, 0x20 };
597 
        struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=cb1, .len = 2};
598 
 
599 
        tda8290_i2c_bridge(fe, 1);
600 
        if (priv->tda827x_ver != 0)
601 
                cb1[1] = 0x90;
602 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
603 
        tda8290_i2c_bridge(fe, 0);
604 
        tuner_i2c_xfer_send(&priv->i2c_props, tda8290_agc_tri, 2);
605 
        tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2);
606 
 
607 
        return 0;
608 
}
609 
 
610 
 
611 
static void tda8290_init_if(struct dvb_frontend *fe)
612 
{
613 
        struct tda8290_priv *priv = fe->tuner_priv;
614 
 
615 
        unsigned char set_VS[] = { 0x30, 0x6F };
616 
        unsigned char set_GP00_CF[] = { 0x20, 0x01 };
617 
        unsigned char set_GP01_CF[] = { 0x20, 0x0B };
618 
 
619 
        if ((priv->lna_cfg) &&
620 
            ((*priv->lna_cfg == 1) || (*priv->lna_cfg == 2)))
621 
                tuner_i2c_xfer_send(&priv->i2c_props, set_GP00_CF, 2);
622 
        else
623 
                tuner_i2c_xfer_send(&priv->i2c_props, set_GP01_CF, 2);
624 
        tuner_i2c_xfer_send(&priv->i2c_props, set_VS, 2);
625 
}
626 
 
627 
static void tda8290_init_tuner(struct dvb_frontend *fe)
628 
{
629 
        struct tda8290_priv *priv = fe->tuner_priv;
630 
        unsigned char tda8275_init[]  = { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf,
631 
                                          0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 };
632 
        unsigned char tda8275a_init[] = { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b,
633 
                                          0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b };
634 
        struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0,
635 
                              .buf=tda8275_init, .len = 14};
636 
        if (priv->tda827x_ver != 0)
637 
                msg.buf = tda8275a_init;
638 
 
639 
        tda8290_i2c_bridge(fe, 1);
640 
        i2c_transfer(priv->i2c_props.adap, &msg, 1);
641 
        tda8290_i2c_bridge(fe, 0);
642 
}
643 
 
644 
/*---------------------------------------------------------------------*/
645 
 
646 
static int tda8290_release(struct dvb_frontend *fe)
647 
{
648 
        kfree(fe->tuner_priv);
649 
        fe->tuner_priv = NULL;
650 
 
651 
        return 0;
652 
}
653 
 
654 
static int tda8290_get_frequency(struct dvb_frontend *fe, u32 *frequency)
655 
{
656 
        struct tda8290_priv *priv = fe->tuner_priv;
657 
        *frequency = priv->frequency;
658 
        return 0;
659 
}
660 
 
661 
static struct dvb_tuner_ops tda8290_tuner_ops = {
662 
        .sleep             = tda8290_standby,
663 
        .set_analog_params = tda8290_set_params,
664 
        .release           = tda8290_release,
665 
        .get_frequency     = tda8290_get_frequency,
666 
        .get_status        = tda8290_get_status,
667 
        .get_rf_strength   = tda8290_get_rf_strength,
668 
};
669 
 
670 
struct dvb_frontend *tda8290_attach(struct dvb_frontend *fe,
671 
                                    struct i2c_adapter* i2c_adap,
672 
                                    u8 i2c_addr,
673 
                                    struct tda8290_config *cfg)
674 
{
675 
        struct tda8290_priv *priv = NULL;
676 
        u8 data;
677 
        int i, ret, tuners_found;
678 
        u32 tuner_addrs;
679 
        struct i2c_msg msg = {.flags=I2C_M_RD, .buf=&data, .len = 1};
680 
 
681 
        priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL);
682 
        if (priv == NULL)
683 
                return NULL;
684 
        fe->tuner_priv = priv;
685 
 
686 
        priv->i2c_props.addr = i2c_addr;
687 
        priv->i2c_props.adap = i2c_adap;
688 
        if (cfg) {
689 
                priv->lna_cfg        = cfg->lna_cfg;
690 
                priv->tuner_callback = cfg->tuner_callback;
691 
        }
692 
 
693 
        tda8290_i2c_bridge(fe, 1);
694 
        /* probe for tuner chip */
695 
        tuners_found = 0;
696 
        tuner_addrs = 0;
697 
        for (i=0x60; i<= 0x63; i++) {
698 
                msg.addr = i;
699 
                ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
700 
                if (ret == 1) {
701 
                        tuners_found++;
702 
                        tuner_addrs = (tuner_addrs << 8) + i;
703 
                }
704 
        }
705 
        /* if there is more than one tuner, we expect the right one is
706 
           behind the bridge and we choose the highest address that doesn't
707 
           give a response now
708 
         */
709 
        tda8290_i2c_bridge(fe, 0);
710 
        if(tuners_found > 1)
711 
                for (i = 0; i < tuners_found; i++) {
712 
                        msg.addr = tuner_addrs  & 0xff;
713 
                        ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
714 
                        if(ret == 1)
715 
                                tuner_addrs = tuner_addrs >> 8;
716 
                        else
717 
                                break;
718 
                }
719 
        if (tuner_addrs == 0) {
720 
                tuner_addrs = 0x61;
721 
                tuner_info("could not clearly identify tuner address, defaulting to %x\n",
722 
                             tuner_addrs);
723 
        } else {
724 
                tuner_addrs = tuner_addrs & 0xff;
725 
                tuner_info("setting tuner address to %x\n", tuner_addrs);
726 
        }
727 
        priv->tda827x_addr = tuner_addrs;
728 
        msg.addr = tuner_addrs;
729 
 
730 
        tda8290_i2c_bridge(fe, 1);
731 
        ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
732 
        if( ret != 1)
733 
                tuner_warn("TDA827x access failed!\n");
734 
 
735 
        memcpy(&fe->ops.tuner_ops, &tda8290_tuner_ops,
736 
               sizeof(struct dvb_tuner_ops));
737 
 
738 
        if ((data & 0x3c) == 0) {
739 
                strlcpy(fe->ops.tuner_ops.info.name, "tda8290+75",
740 
                        sizeof(fe->ops.tuner_ops.info.name));
741 
                fe->ops.tuner_ops.info.frequency_min  =  55000000;
742 
                fe->ops.tuner_ops.info.frequency_max  = 860000000;
743 
                fe->ops.tuner_ops.info.frequency_step =    250000;
744 
                priv->tda827x_ver = 0;
745 
        } else {
746 
                strlcpy(fe->ops.tuner_ops.info.name, "tda8290+75a",
747 
                        sizeof(fe->ops.tuner_ops.info.name));
748 
                fe->ops.tuner_ops.info.frequency_min  =  44000000;
749 
                fe->ops.tuner_ops.info.frequency_max  = 906000000;
750 
                fe->ops.tuner_ops.info.frequency_step =     62500;
751 
                priv->tda827x_ver = 2;
752 
        }
753 
 
754 
        priv->tda827x_lpsel = 0;
755 
 
756 
        tda8290_init_tuner(fe);
757 
        tda8290_init_if(fe);
758 
        return fe;
759 
}
760 
 
761 
int tda8290_probe(struct i2c_adapter* i2c_adap, u8 i2c_addr)
762 
{
763 
        struct tuner_i2c_props i2c_props = {
764 
                .adap = i2c_adap,
765 
                .addr = i2c_addr
766 
        };
767 
 
768 
        unsigned char soft_reset[]   = { 0x00, 0x00 };
769 
        unsigned char easy_mode_b[]  = { 0x01, 0x02 };
770 
        unsigned char easy_mode_g[]  = { 0x01, 0x04 };
771 
        unsigned char restore_9886[] = { 0x00, 0xd6, 0x30 };
772 
        unsigned char addr_dto_lsb = 0x07;
773 
        unsigned char data;
774 
 
775 
        tuner_i2c_xfer_send(&i2c_props, easy_mode_b, 2);
776 
        tuner_i2c_xfer_send(&i2c_props, soft_reset, 2);
777 
        tuner_i2c_xfer_send(&i2c_props, &addr_dto_lsb, 1);
778 
        tuner_i2c_xfer_recv(&i2c_props, &data, 1);
779 
        if (data == 0) {
780 
                tuner_i2c_xfer_send(&i2c_props, easy_mode_g, 2);
781 
                tuner_i2c_xfer_send(&i2c_props, soft_reset, 2);
782 
                tuner_i2c_xfer_send(&i2c_props, &addr_dto_lsb, 1);
783 
                tuner_i2c_xfer_recv(&i2c_props, &data, 1);
784 
                if (data == 0x7b) {
785 
                        return 0;
786 
                }
787 
        }
788 
        tuner_i2c_xfer_send(&i2c_props, restore_9886, 3);
789 
        return -1;
790 
}
791 
 
792 
EXPORT_SYMBOL_GPL(tda8290_probe);
793 
EXPORT_SYMBOL_GPL(tda8290_attach);
794 
 
795 
MODULE_DESCRIPTION("Philips TDA8290 + TDA8275 / TDA8275a tuner driver");
796 
MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann");
797 
MODULE_LICENSE("GPL");
798 
 
799 
/*
800 
 * Overrides for Emacs so that we follow Linus's tabbing style.
801 
 * ---------------------------------------------------------------------------
802 
 * Local variables:
803 
 * c-basic-offset: 8
804 
 * End:
805 
 */

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