Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm
[linux-2.6] / drivers / media / dvb / frontends / tda1004x.c
1   /*
2      Driver for Philips tda1004xh OFDM Demodulator
3
4      (c) 2003, 2004 Andrew de Quincey & Robert Schlabbach
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
15      GNU General Public License for more details.
16
17      You should have received a copy of the GNU General Public License
18      along with this program; if not, write to the Free Software
19      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20
21    */
22 /*
23  * This driver needs external firmware. Please use the commands
24  * "<kerneldir>/Documentation/dvb/get_dvb_firmware tda10045",
25  * "<kerneldir>/Documentation/dvb/get_dvb_firmware tda10046" to
26  * download/extract them, and then copy them to /usr/lib/hotplug/firmware
27  * or /lib/firmware (depending on configuration of firmware hotplug).
28  */
29 #define TDA10045_DEFAULT_FIRMWARE "dvb-fe-tda10045.fw"
30 #define TDA10046_DEFAULT_FIRMWARE "dvb-fe-tda10046.fw"
31
32 #include <linux/init.h>
33 #include <linux/module.h>
34 #include <linux/device.h>
35 #include <linux/jiffies.h>
36 #include <linux/string.h>
37 #include <linux/slab.h>
38
39 #include "dvb_frontend.h"
40 #include "tda1004x.h"
41
42 static int debug;
43 #define dprintk(args...) \
44         do { \
45                 if (debug) printk(KERN_DEBUG "tda1004x: " args); \
46         } while (0)
47
48 #define TDA1004X_CHIPID          0x00
49 #define TDA1004X_AUTO            0x01
50 #define TDA1004X_IN_CONF1        0x02
51 #define TDA1004X_IN_CONF2        0x03
52 #define TDA1004X_OUT_CONF1       0x04
53 #define TDA1004X_OUT_CONF2       0x05
54 #define TDA1004X_STATUS_CD       0x06
55 #define TDA1004X_CONFC4          0x07
56 #define TDA1004X_DSSPARE2        0x0C
57 #define TDA10045H_CODE_IN        0x0D
58 #define TDA10045H_FWPAGE         0x0E
59 #define TDA1004X_SCAN_CPT        0x10
60 #define TDA1004X_DSP_CMD         0x11
61 #define TDA1004X_DSP_ARG         0x12
62 #define TDA1004X_DSP_DATA1       0x13
63 #define TDA1004X_DSP_DATA2       0x14
64 #define TDA1004X_CONFADC1        0x15
65 #define TDA1004X_CONFC1          0x16
66 #define TDA10045H_S_AGC          0x1a
67 #define TDA10046H_AGC_TUN_LEVEL  0x1a
68 #define TDA1004X_SNR             0x1c
69 #define TDA1004X_CONF_TS1        0x1e
70 #define TDA1004X_CONF_TS2        0x1f
71 #define TDA1004X_CBER_RESET      0x20
72 #define TDA1004X_CBER_MSB        0x21
73 #define TDA1004X_CBER_LSB        0x22
74 #define TDA1004X_CVBER_LUT       0x23
75 #define TDA1004X_VBER_MSB        0x24
76 #define TDA1004X_VBER_MID        0x25
77 #define TDA1004X_VBER_LSB        0x26
78 #define TDA1004X_UNCOR           0x27
79
80 #define TDA10045H_CONFPLL_P      0x2D
81 #define TDA10045H_CONFPLL_M_MSB  0x2E
82 #define TDA10045H_CONFPLL_M_LSB  0x2F
83 #define TDA10045H_CONFPLL_N      0x30
84
85 #define TDA10046H_CONFPLL1       0x2D
86 #define TDA10046H_CONFPLL2       0x2F
87 #define TDA10046H_CONFPLL3       0x30
88 #define TDA10046H_TIME_WREF1     0x31
89 #define TDA10046H_TIME_WREF2     0x32
90 #define TDA10046H_TIME_WREF3     0x33
91 #define TDA10046H_TIME_WREF4     0x34
92 #define TDA10046H_TIME_WREF5     0x35
93
94 #define TDA10045H_UNSURW_MSB     0x31
95 #define TDA10045H_UNSURW_LSB     0x32
96 #define TDA10045H_WREF_MSB       0x33
97 #define TDA10045H_WREF_MID       0x34
98 #define TDA10045H_WREF_LSB       0x35
99 #define TDA10045H_MUXOUT         0x36
100 #define TDA1004X_CONFADC2        0x37
101
102 #define TDA10045H_IOFFSET        0x38
103
104 #define TDA10046H_CONF_TRISTATE1 0x3B
105 #define TDA10046H_CONF_TRISTATE2 0x3C
106 #define TDA10046H_CONF_POLARITY  0x3D
107 #define TDA10046H_FREQ_OFFSET    0x3E
108 #define TDA10046H_GPIO_OUT_SEL   0x41
109 #define TDA10046H_GPIO_SELECT    0x42
110 #define TDA10046H_AGC_CONF       0x43
111 #define TDA10046H_AGC_THR        0x44
112 #define TDA10046H_AGC_RENORM     0x45
113 #define TDA10046H_AGC_GAINS      0x46
114 #define TDA10046H_AGC_TUN_MIN    0x47
115 #define TDA10046H_AGC_TUN_MAX    0x48
116 #define TDA10046H_AGC_IF_MIN     0x49
117 #define TDA10046H_AGC_IF_MAX     0x4A
118
119 #define TDA10046H_FREQ_PHY2_MSB  0x4D
120 #define TDA10046H_FREQ_PHY2_LSB  0x4E
121
122 #define TDA10046H_CVBER_CTRL     0x4F
123 #define TDA10046H_AGC_IF_LEVEL   0x52
124 #define TDA10046H_CODE_CPT       0x57
125 #define TDA10046H_CODE_IN        0x58
126
127
128 static int tda1004x_write_byteI(struct tda1004x_state *state, int reg, int data)
129 {
130         int ret;
131         u8 buf[] = { reg, data };
132         struct i2c_msg msg = { .flags = 0, .buf = buf, .len = 2 };
133
134         dprintk("%s: reg=0x%x, data=0x%x\n", __func__, reg, data);
135
136         msg.addr = state->config->demod_address;
137         ret = i2c_transfer(state->i2c, &msg, 1);
138
139         if (ret != 1)
140                 dprintk("%s: error reg=0x%x, data=0x%x, ret=%i\n",
141                         __func__, reg, data, ret);
142
143         dprintk("%s: success reg=0x%x, data=0x%x, ret=%i\n", __func__,
144                 reg, data, ret);
145         return (ret != 1) ? -1 : 0;
146 }
147
148 static int tda1004x_read_byte(struct tda1004x_state *state, int reg)
149 {
150         int ret;
151         u8 b0[] = { reg };
152         u8 b1[] = { 0 };
153         struct i2c_msg msg[] = {{ .flags = 0, .buf = b0, .len = 1 },
154                                 { .flags = I2C_M_RD, .buf = b1, .len = 1 }};
155
156         dprintk("%s: reg=0x%x\n", __func__, reg);
157
158         msg[0].addr = state->config->demod_address;
159         msg[1].addr = state->config->demod_address;
160         ret = i2c_transfer(state->i2c, msg, 2);
161
162         if (ret != 2) {
163                 dprintk("%s: error reg=0x%x, ret=%i\n", __func__, reg,
164                         ret);
165                 return -1;
166         }
167
168         dprintk("%s: success reg=0x%x, data=0x%x, ret=%i\n", __func__,
169                 reg, b1[0], ret);
170         return b1[0];
171 }
172
173 static int tda1004x_write_mask(struct tda1004x_state *state, int reg, int mask, int data)
174 {
175         int val;
176         dprintk("%s: reg=0x%x, mask=0x%x, data=0x%x\n", __func__, reg,
177                 mask, data);
178
179         // read a byte and check
180         val = tda1004x_read_byte(state, reg);
181         if (val < 0)
182                 return val;
183
184         // mask if off
185         val = val & ~mask;
186         val |= data & 0xff;
187
188         // write it out again
189         return tda1004x_write_byteI(state, reg, val);
190 }
191
192 static int tda1004x_write_buf(struct tda1004x_state *state, int reg, unsigned char *buf, int len)
193 {
194         int i;
195         int result;
196
197         dprintk("%s: reg=0x%x, len=0x%x\n", __func__, reg, len);
198
199         result = 0;
200         for (i = 0; i < len; i++) {
201                 result = tda1004x_write_byteI(state, reg + i, buf[i]);
202                 if (result != 0)
203                         break;
204         }
205
206         return result;
207 }
208
209 static int tda1004x_enable_tuner_i2c(struct tda1004x_state *state)
210 {
211         int result;
212         dprintk("%s\n", __func__);
213
214         result = tda1004x_write_mask(state, TDA1004X_CONFC4, 2, 2);
215         msleep(20);
216         return result;
217 }
218
219 static int tda1004x_disable_tuner_i2c(struct tda1004x_state *state)
220 {
221         dprintk("%s\n", __func__);
222
223         return tda1004x_write_mask(state, TDA1004X_CONFC4, 2, 0);
224 }
225
226 static int tda10045h_set_bandwidth(struct tda1004x_state *state,
227                                    fe_bandwidth_t bandwidth)
228 {
229         static u8 bandwidth_6mhz[] = { 0x02, 0x00, 0x3d, 0x00, 0x60, 0x1e, 0xa7, 0x45, 0x4f };
230         static u8 bandwidth_7mhz[] = { 0x02, 0x00, 0x37, 0x00, 0x4a, 0x2f, 0x6d, 0x76, 0xdb };
231         static u8 bandwidth_8mhz[] = { 0x02, 0x00, 0x3d, 0x00, 0x48, 0x17, 0x89, 0xc7, 0x14 };
232
233         switch (bandwidth) {
234         case BANDWIDTH_6_MHZ:
235                 tda1004x_write_buf(state, TDA10045H_CONFPLL_P, bandwidth_6mhz, sizeof(bandwidth_6mhz));
236                 break;
237
238         case BANDWIDTH_7_MHZ:
239                 tda1004x_write_buf(state, TDA10045H_CONFPLL_P, bandwidth_7mhz, sizeof(bandwidth_7mhz));
240                 break;
241
242         case BANDWIDTH_8_MHZ:
243                 tda1004x_write_buf(state, TDA10045H_CONFPLL_P, bandwidth_8mhz, sizeof(bandwidth_8mhz));
244                 break;
245
246         default:
247                 return -EINVAL;
248         }
249
250         tda1004x_write_byteI(state, TDA10045H_IOFFSET, 0);
251
252         return 0;
253 }
254
255 static int tda10046h_set_bandwidth(struct tda1004x_state *state,
256                                    fe_bandwidth_t bandwidth)
257 {
258         static u8 bandwidth_6mhz_53M[] = { 0x7b, 0x2e, 0x11, 0xf0, 0xd2 };
259         static u8 bandwidth_7mhz_53M[] = { 0x6a, 0x02, 0x6a, 0x43, 0x9f };
260         static u8 bandwidth_8mhz_53M[] = { 0x5c, 0x32, 0xc2, 0x96, 0x6d };
261
262         static u8 bandwidth_6mhz_48M[] = { 0x70, 0x02, 0x49, 0x24, 0x92 };
263         static u8 bandwidth_7mhz_48M[] = { 0x60, 0x02, 0xaa, 0xaa, 0xab };
264         static u8 bandwidth_8mhz_48M[] = { 0x54, 0x03, 0x0c, 0x30, 0xc3 };
265         int tda10046_clk53m;
266
267         if ((state->config->if_freq == TDA10046_FREQ_045) ||
268             (state->config->if_freq == TDA10046_FREQ_052))
269                 tda10046_clk53m = 0;
270         else
271                 tda10046_clk53m = 1;
272         switch (bandwidth) {
273         case BANDWIDTH_6_MHZ:
274                 if (tda10046_clk53m)
275                         tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_6mhz_53M,
276                                                   sizeof(bandwidth_6mhz_53M));
277                 else
278                         tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_6mhz_48M,
279                                                   sizeof(bandwidth_6mhz_48M));
280                 if (state->config->if_freq == TDA10046_FREQ_045) {
281                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0a);
282                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0xab);
283                 }
284                 break;
285
286         case BANDWIDTH_7_MHZ:
287                 if (tda10046_clk53m)
288                         tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_7mhz_53M,
289                                                   sizeof(bandwidth_7mhz_53M));
290                 else
291                         tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_7mhz_48M,
292                                                   sizeof(bandwidth_7mhz_48M));
293                 if (state->config->if_freq == TDA10046_FREQ_045) {
294                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0c);
295                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x00);
296                 }
297                 break;
298
299         case BANDWIDTH_8_MHZ:
300                 if (tda10046_clk53m)
301                         tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_8mhz_53M,
302                                                   sizeof(bandwidth_8mhz_53M));
303                 else
304                         tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_8mhz_48M,
305                                                   sizeof(bandwidth_8mhz_48M));
306                 if (state->config->if_freq == TDA10046_FREQ_045) {
307                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0d);
308                         tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x55);
309                 }
310                 break;
311
312         default:
313                 return -EINVAL;
314         }
315
316         return 0;
317 }
318
319 static int tda1004x_do_upload(struct tda1004x_state *state,
320                               const unsigned char *mem, unsigned int len,
321                               u8 dspCodeCounterReg, u8 dspCodeInReg)
322 {
323         u8 buf[65];
324         struct i2c_msg fw_msg = { .flags = 0, .buf = buf, .len = 0 };
325         int tx_size;
326         int pos = 0;
327
328         /* clear code counter */
329         tda1004x_write_byteI(state, dspCodeCounterReg, 0);
330         fw_msg.addr = state->config->demod_address;
331
332         buf[0] = dspCodeInReg;
333         while (pos != len) {
334                 // work out how much to send this time
335                 tx_size = len - pos;
336                 if (tx_size > 0x10)
337                         tx_size = 0x10;
338
339                 // send the chunk
340                 memcpy(buf + 1, mem + pos, tx_size);
341                 fw_msg.len = tx_size + 1;
342                 if (i2c_transfer(state->i2c, &fw_msg, 1) != 1) {
343                         printk(KERN_ERR "tda1004x: Error during firmware upload\n");
344                         return -EIO;
345                 }
346                 pos += tx_size;
347
348                 dprintk("%s: fw_pos=0x%x\n", __func__, pos);
349         }
350         // give the DSP a chance to settle 03/10/05 Hac
351         msleep(100);
352
353         return 0;
354 }
355
356 static int tda1004x_check_upload_ok(struct tda1004x_state *state)
357 {
358         u8 data1, data2;
359         unsigned long timeout;
360
361         if (state->demod_type == TDA1004X_DEMOD_TDA10046) {
362                 timeout = jiffies + 2 * HZ;
363                 while(!(tda1004x_read_byte(state, TDA1004X_STATUS_CD) & 0x20)) {
364                         if (time_after(jiffies, timeout)) {
365                                 printk(KERN_ERR "tda1004x: timeout waiting for DSP ready\n");
366                                 break;
367                         }
368                         msleep(1);
369                 }
370         } else
371                 msleep(100);
372
373         // check upload was OK
374         tda1004x_write_mask(state, TDA1004X_CONFC4, 0x10, 0); // we want to read from the DSP
375         tda1004x_write_byteI(state, TDA1004X_DSP_CMD, 0x67);
376
377         data1 = tda1004x_read_byte(state, TDA1004X_DSP_DATA1);
378         data2 = tda1004x_read_byte(state, TDA1004X_DSP_DATA2);
379         if (data1 != 0x67 || data2 < 0x20 || data2 > 0x2e) {
380                 printk(KERN_INFO "tda1004x: found firmware revision %x -- invalid\n", data2);
381                 return -EIO;
382         }
383         printk(KERN_INFO "tda1004x: found firmware revision %x -- ok\n", data2);
384         return 0;
385 }
386
387 static int tda10045_fwupload(struct dvb_frontend* fe)
388 {
389         struct tda1004x_state* state = fe->demodulator_priv;
390         int ret;
391         const struct firmware *fw;
392
393         /* don't re-upload unless necessary */
394         if (tda1004x_check_upload_ok(state) == 0)
395                 return 0;
396
397         /* request the firmware, this will block until someone uploads it */
398         printk(KERN_INFO "tda1004x: waiting for firmware upload (%s)...\n", TDA10045_DEFAULT_FIRMWARE);
399         ret = state->config->request_firmware(fe, &fw, TDA10045_DEFAULT_FIRMWARE);
400         if (ret) {
401                 printk(KERN_ERR "tda1004x: no firmware upload (timeout or file not found?)\n");
402                 return ret;
403         }
404
405         /* reset chip */
406         tda1004x_write_mask(state, TDA1004X_CONFC4, 0x10, 0);
407         tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8);
408         tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 0);
409         msleep(10);
410
411         /* set parameters */
412         tda10045h_set_bandwidth(state, BANDWIDTH_8_MHZ);
413
414         ret = tda1004x_do_upload(state, fw->data, fw->size, TDA10045H_FWPAGE, TDA10045H_CODE_IN);
415         release_firmware(fw);
416         if (ret)
417                 return ret;
418         printk(KERN_INFO "tda1004x: firmware upload complete\n");
419
420         /* wait for DSP to initialise */
421         /* DSPREADY doesn't seem to work on the TDA10045H */
422         msleep(100);
423
424         return tda1004x_check_upload_ok(state);
425 }
426
427 static void tda10046_init_plls(struct dvb_frontend* fe)
428 {
429         struct tda1004x_state* state = fe->demodulator_priv;
430         int tda10046_clk53m;
431
432         if ((state->config->if_freq == TDA10046_FREQ_045) ||
433             (state->config->if_freq == TDA10046_FREQ_052))
434                 tda10046_clk53m = 0;
435         else
436                 tda10046_clk53m = 1;
437
438         tda1004x_write_byteI(state, TDA10046H_CONFPLL1, 0xf0);
439         if(tda10046_clk53m) {
440                 printk(KERN_INFO "tda1004x: setting up plls for 53MHz sampling clock\n");
441                 tda1004x_write_byteI(state, TDA10046H_CONFPLL2, 0x08); // PLL M = 8
442         } else {
443                 printk(KERN_INFO "tda1004x: setting up plls for 48MHz sampling clock\n");
444                 tda1004x_write_byteI(state, TDA10046H_CONFPLL2, 0x03); // PLL M = 3
445         }
446         if (state->config->xtal_freq == TDA10046_XTAL_4M ) {
447                 dprintk("%s: setting up PLLs for a 4 MHz Xtal\n", __func__);
448                 tda1004x_write_byteI(state, TDA10046H_CONFPLL3, 0); // PLL P = N = 0
449         } else {
450                 dprintk("%s: setting up PLLs for a 16 MHz Xtal\n", __func__);
451                 tda1004x_write_byteI(state, TDA10046H_CONFPLL3, 3); // PLL P = 0, N = 3
452         }
453         if(tda10046_clk53m)
454                 tda1004x_write_byteI(state, TDA10046H_FREQ_OFFSET, 0x67);
455         else
456                 tda1004x_write_byteI(state, TDA10046H_FREQ_OFFSET, 0x72);
457         /* Note clock frequency is handled implicitly */
458         switch (state->config->if_freq) {
459         case TDA10046_FREQ_045:
460                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0c);
461                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x00);
462                 break;
463         case TDA10046_FREQ_052:
464                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0d);
465                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0xc7);
466                 break;
467         case TDA10046_FREQ_3617:
468                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0xd7);
469                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x59);
470                 break;
471         case TDA10046_FREQ_3613:
472                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0xd7);
473                 tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x3f);
474                 break;
475         }
476         tda10046h_set_bandwidth(state, BANDWIDTH_8_MHZ); // default bandwidth 8 MHz
477         /* let the PLLs settle */
478         msleep(120);
479 }
480
481 static int tda10046_fwupload(struct dvb_frontend* fe)
482 {
483         struct tda1004x_state* state = fe->demodulator_priv;
484         int ret;
485         const struct firmware *fw;
486
487         /* reset + wake up chip */
488         if (state->config->xtal_freq == TDA10046_XTAL_4M) {
489                 tda1004x_write_byteI(state, TDA1004X_CONFC4, 0);
490         } else {
491                 dprintk("%s: 16MHz Xtal, reducing I2C speed\n", __func__);
492                 tda1004x_write_byteI(state, TDA1004X_CONFC4, 0x80);
493         }
494         tda1004x_write_mask(state, TDA10046H_CONF_TRISTATE1, 1, 0);
495         /* set GPIO 1 and 3 */
496         if (state->config->gpio_config != TDA10046_GPTRI) {
497                 tda1004x_write_byteI(state, TDA10046H_CONF_TRISTATE2, 0x33);
498                 tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0x0f, state->config->gpio_config &0x0f);
499         }
500         /* let the clocks recover from sleep */
501         msleep(10);
502
503         /* The PLLs need to be reprogrammed after sleep */
504         tda10046_init_plls(fe);
505         tda1004x_write_mask(state, TDA1004X_CONFADC2, 0xc0, 0);
506
507         /* don't re-upload unless necessary */
508         if (tda1004x_check_upload_ok(state) == 0)
509                 return 0;
510
511         printk(KERN_INFO "tda1004x: trying to boot from eeprom\n");
512         tda1004x_write_mask(state, TDA1004X_CONFC4, 4, 4);
513         msleep(300);
514         /* don't re-upload unless necessary */
515         if (tda1004x_check_upload_ok(state) == 0)
516                 return 0;
517
518         if (state->config->request_firmware != NULL) {
519                 /* request the firmware, this will block until someone uploads it */
520                 printk(KERN_INFO "tda1004x: waiting for firmware upload...\n");
521                 ret = state->config->request_firmware(fe, &fw, TDA10046_DEFAULT_FIRMWARE);
522                 if (ret) {
523                         /* remain compatible to old bug: try to load with tda10045 image name */
524                         ret = state->config->request_firmware(fe, &fw, TDA10045_DEFAULT_FIRMWARE);
525                         if (ret) {
526                                 printk(KERN_ERR "tda1004x: no firmware upload (timeout or file not found?)\n");
527                                 return ret;
528                         } else {
529                                 printk(KERN_INFO "tda1004x: please rename the firmware file to %s\n",
530                                                   TDA10046_DEFAULT_FIRMWARE);
531                         }
532                 }
533         } else {
534                 printk(KERN_ERR "tda1004x: no request function defined, can't upload from file\n");
535                 return -EIO;
536         }
537         tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8); // going to boot from HOST
538         ret = tda1004x_do_upload(state, fw->data, fw->size, TDA10046H_CODE_CPT, TDA10046H_CODE_IN);
539         release_firmware(fw);
540         return tda1004x_check_upload_ok(state);
541 }
542
543 static int tda1004x_encode_fec(int fec)
544 {
545         // convert known FEC values
546         switch (fec) {
547         case FEC_1_2:
548                 return 0;
549         case FEC_2_3:
550                 return 1;
551         case FEC_3_4:
552                 return 2;
553         case FEC_5_6:
554                 return 3;
555         case FEC_7_8:
556                 return 4;
557         }
558
559         // unsupported
560         return -EINVAL;
561 }
562
563 static int tda1004x_decode_fec(int tdafec)
564 {
565         // convert known FEC values
566         switch (tdafec) {
567         case 0:
568                 return FEC_1_2;
569         case 1:
570                 return FEC_2_3;
571         case 2:
572                 return FEC_3_4;
573         case 3:
574                 return FEC_5_6;
575         case 4:
576                 return FEC_7_8;
577         }
578
579         // unsupported
580         return -1;
581 }
582
583 static int tda1004x_write(struct dvb_frontend* fe, u8 *buf, int len)
584 {
585         struct tda1004x_state* state = fe->demodulator_priv;
586
587         if (len != 2)
588                 return -EINVAL;
589
590         return tda1004x_write_byteI(state, buf[0], buf[1]);
591 }
592
593 static int tda10045_init(struct dvb_frontend* fe)
594 {
595         struct tda1004x_state* state = fe->demodulator_priv;
596
597         dprintk("%s\n", __func__);
598
599         if (tda10045_fwupload(fe)) {
600                 printk("tda1004x: firmware upload failed\n");
601                 return -EIO;
602         }
603
604         tda1004x_write_mask(state, TDA1004X_CONFADC1, 0x10, 0); // wake up the ADC
605
606         // tda setup
607         tda1004x_write_mask(state, TDA1004X_CONFC4, 0x20, 0); // disable DSP watchdog timer
608         tda1004x_write_mask(state, TDA1004X_AUTO, 8, 0); // select HP stream
609         tda1004x_write_mask(state, TDA1004X_CONFC1, 0x40, 0); // set polarity of VAGC signal
610         tda1004x_write_mask(state, TDA1004X_CONFC1, 0x80, 0x80); // enable pulse killer
611         tda1004x_write_mask(state, TDA1004X_AUTO, 0x10, 0x10); // enable auto offset
612         tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0xC0, 0x0); // no frequency offset
613         tda1004x_write_byteI(state, TDA1004X_CONF_TS1, 0); // setup MPEG2 TS interface
614         tda1004x_write_byteI(state, TDA1004X_CONF_TS2, 0); // setup MPEG2 TS interface
615         tda1004x_write_mask(state, TDA1004X_VBER_MSB, 0xe0, 0xa0); // 10^6 VBER measurement bits
616         tda1004x_write_mask(state, TDA1004X_CONFC1, 0x10, 0); // VAGC polarity
617         tda1004x_write_byteI(state, TDA1004X_CONFADC1, 0x2e);
618
619         tda1004x_write_mask(state, 0x1f, 0x01, state->config->invert_oclk);
620
621         return 0;
622 }
623
624 static int tda10046_init(struct dvb_frontend* fe)
625 {
626         struct tda1004x_state* state = fe->demodulator_priv;
627         dprintk("%s\n", __func__);
628
629         if (tda10046_fwupload(fe)) {
630                 printk("tda1004x: firmware upload failed\n");
631                         return -EIO;
632         }
633
634         // tda setup
635         tda1004x_write_mask(state, TDA1004X_CONFC4, 0x20, 0); // disable DSP watchdog timer
636         tda1004x_write_byteI(state, TDA1004X_AUTO, 0x87);    // 100 ppm crystal, select HP stream
637         tda1004x_write_byteI(state, TDA1004X_CONFC1, 0x88);      // enable pulse killer
638
639         switch (state->config->agc_config) {
640         case TDA10046_AGC_DEFAULT:
641                 tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x00); // AGC setup
642                 tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x60);  // set AGC polarities
643                 break;
644         case TDA10046_AGC_IFO_AUTO_NEG:
645                 tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x0a); // AGC setup
646                 tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x60);  // set AGC polarities
647                 break;
648         case TDA10046_AGC_IFO_AUTO_POS:
649                 tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x0a); // AGC setup
650                 tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x00);  // set AGC polarities
651                 break;
652         case TDA10046_AGC_TDA827X:
653                 tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x02);   // AGC setup
654                 tda1004x_write_byteI(state, TDA10046H_AGC_THR, 0x70);    // AGC Threshold
655                 tda1004x_write_byteI(state, TDA10046H_AGC_RENORM, 0x08); // Gain Renormalize
656                 tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0xf0, 0x60);  // set AGC polarities
657                 break;
658         }
659         if (state->config->ts_mode == 0) {
660                 tda1004x_write_mask(state, TDA10046H_CONF_TRISTATE1, 0xc0, 0x40);
661                 tda1004x_write_mask(state, 0x3a, 0x80, state->config->invert_oclk << 7);
662         } else {
663                 tda1004x_write_mask(state, TDA10046H_CONF_TRISTATE1, 0xc0, 0x80);
664                 tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0x10,
665                                                         state->config->invert_oclk << 4);
666         }
667         tda1004x_write_byteI(state, TDA1004X_CONFADC2, 0x38);
668         tda1004x_write_mask (state, TDA10046H_CONF_TRISTATE1, 0x3e, 0x38); // Turn IF AGC output on
669         tda1004x_write_byteI(state, TDA10046H_AGC_TUN_MIN, 0);    // }
670         tda1004x_write_byteI(state, TDA10046H_AGC_TUN_MAX, 0xff); // } AGC min/max values
671         tda1004x_write_byteI(state, TDA10046H_AGC_IF_MIN, 0);     // }
672         tda1004x_write_byteI(state, TDA10046H_AGC_IF_MAX, 0xff);  // }
673         tda1004x_write_byteI(state, TDA10046H_AGC_GAINS, 0x12); // IF gain 2, TUN gain 1
674         tda1004x_write_byteI(state, TDA10046H_CVBER_CTRL, 0x1a); // 10^6 VBER measurement bits
675         tda1004x_write_byteI(state, TDA1004X_CONF_TS1, 7); // MPEG2 interface config
676         tda1004x_write_byteI(state, TDA1004X_CONF_TS2, 0xc0); // MPEG2 interface config
677         // tda1004x_write_mask(state, 0x50, 0x80, 0x80);         // handle out of guard echoes
678
679         return 0;
680 }
681
682 static int tda1004x_set_fe(struct dvb_frontend* fe,
683                            struct dvb_frontend_parameters *fe_params)
684 {
685         struct tda1004x_state* state = fe->demodulator_priv;
686         int tmp;
687         int inversion;
688
689         dprintk("%s\n", __func__);
690
691         if (state->demod_type == TDA1004X_DEMOD_TDA10046) {
692                 // setup auto offset
693                 tda1004x_write_mask(state, TDA1004X_AUTO, 0x10, 0x10);
694                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x80, 0);
695                 tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0xC0, 0);
696
697                 // disable agc_conf[2]
698                 tda1004x_write_mask(state, TDA10046H_AGC_CONF, 4, 0);
699         }
700
701         // set frequency
702         if (fe->ops.tuner_ops.set_params) {
703                 fe->ops.tuner_ops.set_params(fe, fe_params);
704                 if (fe->ops.i2c_gate_ctrl)
705                         fe->ops.i2c_gate_ctrl(fe, 0);
706         }
707
708         // Hardcoded to use auto as much as possible on the TDA10045 as it
709         // is very unreliable if AUTO mode is _not_ used.
710         if (state->demod_type == TDA1004X_DEMOD_TDA10045) {
711                 fe_params->u.ofdm.code_rate_HP = FEC_AUTO;
712                 fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_AUTO;
713                 fe_params->u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO;
714         }
715
716         // Set standard params.. or put them to auto
717         if ((fe_params->u.ofdm.code_rate_HP == FEC_AUTO) ||
718                 (fe_params->u.ofdm.code_rate_LP == FEC_AUTO) ||
719                 (fe_params->u.ofdm.constellation == QAM_AUTO) ||
720                 (fe_params->u.ofdm.hierarchy_information == HIERARCHY_AUTO)) {
721                 tda1004x_write_mask(state, TDA1004X_AUTO, 1, 1);        // enable auto
722                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x03, 0); // turn off constellation bits
723                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 0); // turn off hierarchy bits
724                 tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0x3f, 0); // turn off FEC bits
725         } else {
726                 tda1004x_write_mask(state, TDA1004X_AUTO, 1, 0);        // disable auto
727
728                 // set HP FEC
729                 tmp = tda1004x_encode_fec(fe_params->u.ofdm.code_rate_HP);
730                 if (tmp < 0)
731                         return tmp;
732                 tda1004x_write_mask(state, TDA1004X_IN_CONF2, 7, tmp);
733
734                 // set LP FEC
735                 tmp = tda1004x_encode_fec(fe_params->u.ofdm.code_rate_LP);
736                 if (tmp < 0)
737                         return tmp;
738                 tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0x38, tmp << 3);
739
740                 // set constellation
741                 switch (fe_params->u.ofdm.constellation) {
742                 case QPSK:
743                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 3, 0);
744                         break;
745
746                 case QAM_16:
747                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 3, 1);
748                         break;
749
750                 case QAM_64:
751                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 3, 2);
752                         break;
753
754                 default:
755                         return -EINVAL;
756                 }
757
758                 // set hierarchy
759                 switch (fe_params->u.ofdm.hierarchy_information) {
760                 case HIERARCHY_NONE:
761                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 0 << 5);
762                         break;
763
764                 case HIERARCHY_1:
765                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 1 << 5);
766                         break;
767
768                 case HIERARCHY_2:
769                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 2 << 5);
770                         break;
771
772                 case HIERARCHY_4:
773                         tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x60, 3 << 5);
774                         break;
775
776                 default:
777                         return -EINVAL;
778                 }
779         }
780
781         // set bandwidth
782         switch (state->demod_type) {
783         case TDA1004X_DEMOD_TDA10045:
784                 tda10045h_set_bandwidth(state, fe_params->u.ofdm.bandwidth);
785                 break;
786
787         case TDA1004X_DEMOD_TDA10046:
788                 tda10046h_set_bandwidth(state, fe_params->u.ofdm.bandwidth);
789                 break;
790         }
791
792         // set inversion
793         inversion = fe_params->inversion;
794         if (state->config->invert)
795                 inversion = inversion ? INVERSION_OFF : INVERSION_ON;
796         switch (inversion) {
797         case INVERSION_OFF:
798                 tda1004x_write_mask(state, TDA1004X_CONFC1, 0x20, 0);
799                 break;
800
801         case INVERSION_ON:
802                 tda1004x_write_mask(state, TDA1004X_CONFC1, 0x20, 0x20);
803                 break;
804
805         default:
806                 return -EINVAL;
807         }
808
809         // set guard interval
810         switch (fe_params->u.ofdm.guard_interval) {
811         case GUARD_INTERVAL_1_32:
812                 tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0);
813                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 0 << 2);
814                 break;
815
816         case GUARD_INTERVAL_1_16:
817                 tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0);
818                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 1 << 2);
819                 break;
820
821         case GUARD_INTERVAL_1_8:
822                 tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0);
823                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 2 << 2);
824                 break;
825
826         case GUARD_INTERVAL_1_4:
827                 tda1004x_write_mask(state, TDA1004X_AUTO, 2, 0);
828                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 3 << 2);
829                 break;
830
831         case GUARD_INTERVAL_AUTO:
832                 tda1004x_write_mask(state, TDA1004X_AUTO, 2, 2);
833                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x0c, 0 << 2);
834                 break;
835
836         default:
837                 return -EINVAL;
838         }
839
840         // set transmission mode
841         switch (fe_params->u.ofdm.transmission_mode) {
842         case TRANSMISSION_MODE_2K:
843                 tda1004x_write_mask(state, TDA1004X_AUTO, 4, 0);
844                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x10, 0 << 4);
845                 break;
846
847         case TRANSMISSION_MODE_8K:
848                 tda1004x_write_mask(state, TDA1004X_AUTO, 4, 0);
849                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x10, 1 << 4);
850                 break;
851
852         case TRANSMISSION_MODE_AUTO:
853                 tda1004x_write_mask(state, TDA1004X_AUTO, 4, 4);
854                 tda1004x_write_mask(state, TDA1004X_IN_CONF1, 0x10, 0);
855                 break;
856
857         default:
858                 return -EINVAL;
859         }
860
861         // start the lock
862         switch (state->demod_type) {
863         case TDA1004X_DEMOD_TDA10045:
864                 tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8);
865                 tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 0);
866                 break;
867
868         case TDA1004X_DEMOD_TDA10046:
869                 tda1004x_write_mask(state, TDA1004X_AUTO, 0x40, 0x40);
870                 msleep(1);
871                 tda1004x_write_mask(state, TDA10046H_AGC_CONF, 4, 1);
872                 break;
873         }
874
875         msleep(10);
876
877         return 0;
878 }
879
880 static int tda1004x_get_fe(struct dvb_frontend* fe, struct dvb_frontend_parameters *fe_params)
881 {
882         struct tda1004x_state* state = fe->demodulator_priv;
883
884         dprintk("%s\n", __func__);
885
886         // inversion status
887         fe_params->inversion = INVERSION_OFF;
888         if (tda1004x_read_byte(state, TDA1004X_CONFC1) & 0x20)
889                 fe_params->inversion = INVERSION_ON;
890         if (state->config->invert)
891                 fe_params->inversion = fe_params->inversion ? INVERSION_OFF : INVERSION_ON;
892
893         // bandwidth
894         switch (state->demod_type) {
895         case TDA1004X_DEMOD_TDA10045:
896                 switch (tda1004x_read_byte(state, TDA10045H_WREF_LSB)) {
897                 case 0x14:
898                         fe_params->u.ofdm.bandwidth = BANDWIDTH_8_MHZ;
899                         break;
900                 case 0xdb:
901                         fe_params->u.ofdm.bandwidth = BANDWIDTH_7_MHZ;
902                         break;
903                 case 0x4f:
904                         fe_params->u.ofdm.bandwidth = BANDWIDTH_6_MHZ;
905                         break;
906                 }
907                 break;
908         case TDA1004X_DEMOD_TDA10046:
909                 switch (tda1004x_read_byte(state, TDA10046H_TIME_WREF1)) {
910                 case 0x5c:
911                 case 0x54:
912                         fe_params->u.ofdm.bandwidth = BANDWIDTH_8_MHZ;
913                         break;
914                 case 0x6a:
915                 case 0x60:
916                         fe_params->u.ofdm.bandwidth = BANDWIDTH_7_MHZ;
917                         break;
918                 case 0x7b:
919                 case 0x70:
920                         fe_params->u.ofdm.bandwidth = BANDWIDTH_6_MHZ;
921                         break;
922                 }
923                 break;
924         }
925
926         // FEC
927         fe_params->u.ofdm.code_rate_HP =
928             tda1004x_decode_fec(tda1004x_read_byte(state, TDA1004X_OUT_CONF2) & 7);
929         fe_params->u.ofdm.code_rate_LP =
930             tda1004x_decode_fec((tda1004x_read_byte(state, TDA1004X_OUT_CONF2) >> 3) & 7);
931
932         // constellation
933         switch (tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 3) {
934         case 0:
935                 fe_params->u.ofdm.constellation = QPSK;
936                 break;
937         case 1:
938                 fe_params->u.ofdm.constellation = QAM_16;
939                 break;
940         case 2:
941                 fe_params->u.ofdm.constellation = QAM_64;
942                 break;
943         }
944
945         // transmission mode
946         fe_params->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K;
947         if (tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x10)
948                 fe_params->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K;
949
950         // guard interval
951         switch ((tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x0c) >> 2) {
952         case 0:
953                 fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_1_32;
954                 break;
955         case 1:
956                 fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_1_16;
957                 break;
958         case 2:
959                 fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_1_8;
960                 break;
961         case 3:
962                 fe_params->u.ofdm.guard_interval = GUARD_INTERVAL_1_4;
963                 break;
964         }
965
966         // hierarchy
967         switch ((tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x60) >> 5) {
968         case 0:
969                 fe_params->u.ofdm.hierarchy_information = HIERARCHY_NONE;
970                 break;
971         case 1:
972                 fe_params->u.ofdm.hierarchy_information = HIERARCHY_1;
973                 break;
974         case 2:
975                 fe_params->u.ofdm.hierarchy_information = HIERARCHY_2;
976                 break;
977         case 3:
978                 fe_params->u.ofdm.hierarchy_information = HIERARCHY_4;
979                 break;
980         }
981
982         return 0;
983 }
984
985 static int tda1004x_read_status(struct dvb_frontend* fe, fe_status_t * fe_status)
986 {
987         struct tda1004x_state* state = fe->demodulator_priv;
988         int status;
989         int cber;
990         int vber;
991
992         dprintk("%s\n", __func__);
993
994         // read status
995         status = tda1004x_read_byte(state, TDA1004X_STATUS_CD);
996         if (status == -1)
997                 return -EIO;
998
999         // decode
1000         *fe_status = 0;
1001         if (status & 4)
1002                 *fe_status |= FE_HAS_SIGNAL;
1003         if (status & 2)
1004                 *fe_status |= FE_HAS_CARRIER;
1005         if (status & 8)
1006                 *fe_status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
1007
1008         // if we don't already have VITERBI (i.e. not LOCKED), see if the viterbi
1009         // is getting anything valid
1010         if (!(*fe_status & FE_HAS_VITERBI)) {
1011                 // read the CBER
1012                 cber = tda1004x_read_byte(state, TDA1004X_CBER_LSB);
1013                 if (cber == -1)
1014                         return -EIO;
1015                 status = tda1004x_read_byte(state, TDA1004X_CBER_MSB);
1016                 if (status == -1)
1017                         return -EIO;
1018                 cber |= (status << 8);
1019                 // The address 0x20 should be read to cope with a TDA10046 bug
1020                 tda1004x_read_byte(state, TDA1004X_CBER_RESET);
1021
1022                 if (cber != 65535)
1023                         *fe_status |= FE_HAS_VITERBI;
1024         }
1025
1026         // if we DO have some valid VITERBI output, but don't already have SYNC
1027         // bytes (i.e. not LOCKED), see if the RS decoder is getting anything valid.
1028         if ((*fe_status & FE_HAS_VITERBI) && (!(*fe_status & FE_HAS_SYNC))) {
1029                 // read the VBER
1030                 vber = tda1004x_read_byte(state, TDA1004X_VBER_LSB);
1031                 if (vber == -1)
1032                         return -EIO;
1033                 status = tda1004x_read_byte(state, TDA1004X_VBER_MID);
1034                 if (status == -1)
1035                         return -EIO;
1036                 vber |= (status << 8);
1037                 status = tda1004x_read_byte(state, TDA1004X_VBER_MSB);
1038                 if (status == -1)
1039                         return -EIO;
1040                 vber |= (status & 0x0f) << 16;
1041                 // The CVBER_LUT should be read to cope with TDA10046 hardware bug
1042                 tda1004x_read_byte(state, TDA1004X_CVBER_LUT);
1043
1044                 // if RS has passed some valid TS packets, then we must be
1045                 // getting some SYNC bytes
1046                 if (vber < 16632)
1047                         *fe_status |= FE_HAS_SYNC;
1048         }
1049
1050         // success
1051         dprintk("%s: fe_status=0x%x\n", __func__, *fe_status);
1052         return 0;
1053 }
1054
1055 static int tda1004x_read_signal_strength(struct dvb_frontend* fe, u16 * signal)
1056 {
1057         struct tda1004x_state* state = fe->demodulator_priv;
1058         int tmp;
1059         int reg = 0;
1060
1061         dprintk("%s\n", __func__);
1062
1063         // determine the register to use
1064         switch (state->demod_type) {
1065         case TDA1004X_DEMOD_TDA10045:
1066                 reg = TDA10045H_S_AGC;
1067                 break;
1068
1069         case TDA1004X_DEMOD_TDA10046:
1070                 reg = TDA10046H_AGC_IF_LEVEL;
1071                 break;
1072         }
1073
1074         // read it
1075         tmp = tda1004x_read_byte(state, reg);
1076         if (tmp < 0)
1077                 return -EIO;
1078
1079         *signal = (tmp << 8) | tmp;
1080         dprintk("%s: signal=0x%x\n", __func__, *signal);
1081         return 0;
1082 }
1083
1084 static int tda1004x_read_snr(struct dvb_frontend* fe, u16 * snr)
1085 {
1086         struct tda1004x_state* state = fe->demodulator_priv;
1087         int tmp;
1088
1089         dprintk("%s\n", __func__);
1090
1091         // read it
1092         tmp = tda1004x_read_byte(state, TDA1004X_SNR);
1093         if (tmp < 0)
1094                 return -EIO;
1095         tmp = 255 - tmp;
1096
1097         *snr = ((tmp << 8) | tmp);
1098         dprintk("%s: snr=0x%x\n", __func__, *snr);
1099         return 0;
1100 }
1101
1102 static int tda1004x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
1103 {
1104         struct tda1004x_state* state = fe->demodulator_priv;
1105         int tmp;
1106         int tmp2;
1107         int counter;
1108
1109         dprintk("%s\n", __func__);
1110
1111         // read the UCBLOCKS and reset
1112         counter = 0;
1113         tmp = tda1004x_read_byte(state, TDA1004X_UNCOR);
1114         if (tmp < 0)
1115                 return -EIO;
1116         tmp &= 0x7f;
1117         while (counter++ < 5) {
1118                 tda1004x_write_mask(state, TDA1004X_UNCOR, 0x80, 0);
1119                 tda1004x_write_mask(state, TDA1004X_UNCOR, 0x80, 0);
1120                 tda1004x_write_mask(state, TDA1004X_UNCOR, 0x80, 0);
1121
1122                 tmp2 = tda1004x_read_byte(state, TDA1004X_UNCOR);
1123                 if (tmp2 < 0)
1124                         return -EIO;
1125                 tmp2 &= 0x7f;
1126                 if ((tmp2 < tmp) || (tmp2 == 0))
1127                         break;
1128         }
1129
1130         if (tmp != 0x7f)
1131                 *ucblocks = tmp;
1132         else
1133                 *ucblocks = 0xffffffff;
1134
1135         dprintk("%s: ucblocks=0x%x\n", __func__, *ucblocks);
1136         return 0;
1137 }
1138
1139 static int tda1004x_read_ber(struct dvb_frontend* fe, u32* ber)
1140 {
1141         struct tda1004x_state* state = fe->demodulator_priv;
1142         int tmp;
1143
1144         dprintk("%s\n", __func__);
1145
1146         // read it in
1147         tmp = tda1004x_read_byte(state, TDA1004X_CBER_LSB);
1148         if (tmp < 0)
1149                 return -EIO;
1150         *ber = tmp << 1;
1151         tmp = tda1004x_read_byte(state, TDA1004X_CBER_MSB);
1152         if (tmp < 0)
1153                 return -EIO;
1154         *ber |= (tmp << 9);
1155         // The address 0x20 should be read to cope with a TDA10046 bug
1156         tda1004x_read_byte(state, TDA1004X_CBER_RESET);
1157
1158         dprintk("%s: ber=0x%x\n", __func__, *ber);
1159         return 0;
1160 }
1161
1162 static int tda1004x_sleep(struct dvb_frontend* fe)
1163 {
1164         struct tda1004x_state* state = fe->demodulator_priv;
1165         int gpio_conf;
1166
1167         switch (state->demod_type) {
1168         case TDA1004X_DEMOD_TDA10045:
1169                 tda1004x_write_mask(state, TDA1004X_CONFADC1, 0x10, 0x10);
1170                 break;
1171
1172         case TDA1004X_DEMOD_TDA10046:
1173                 /* set outputs to tristate */
1174                 tda1004x_write_byteI(state, TDA10046H_CONF_TRISTATE1, 0xff);
1175                 /* invert GPIO 1 and 3 if desired*/
1176                 gpio_conf = state->config->gpio_config;
1177                 if (gpio_conf >= TDA10046_GP00_I)
1178                         tda1004x_write_mask(state, TDA10046H_CONF_POLARITY, 0x0f,
1179                                                         (gpio_conf & 0x0f) ^ 0x0a);
1180
1181                 tda1004x_write_mask(state, TDA1004X_CONFADC2, 0xc0, 0xc0);
1182                 tda1004x_write_mask(state, TDA1004X_CONFC4, 1, 1);
1183                 break;
1184         }
1185
1186         return 0;
1187 }
1188
1189 static int tda1004x_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
1190 {
1191         struct tda1004x_state* state = fe->demodulator_priv;
1192
1193         if (enable) {
1194                 return tda1004x_enable_tuner_i2c(state);
1195         } else {
1196                 return tda1004x_disable_tuner_i2c(state);
1197         }
1198 }
1199
1200 static int tda1004x_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings)
1201 {
1202         fesettings->min_delay_ms = 800;
1203         /* Drift compensation makes no sense for DVB-T */
1204         fesettings->step_size = 0;
1205         fesettings->max_drift = 0;
1206         return 0;
1207 }
1208
1209 static void tda1004x_release(struct dvb_frontend* fe)
1210 {
1211         struct tda1004x_state *state = fe->demodulator_priv;
1212         kfree(state);
1213 }
1214
1215 static struct dvb_frontend_ops tda10045_ops = {
1216         .info = {
1217                 .name = "Philips TDA10045H DVB-T",
1218                 .type = FE_OFDM,
1219                 .frequency_min = 51000000,
1220                 .frequency_max = 858000000,
1221                 .frequency_stepsize = 166667,
1222                 .caps =
1223                     FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1224                     FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1225                     FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
1226                     FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO
1227         },
1228
1229         .release = tda1004x_release,
1230
1231         .init = tda10045_init,
1232         .sleep = tda1004x_sleep,
1233         .write = tda1004x_write,
1234         .i2c_gate_ctrl = tda1004x_i2c_gate_ctrl,
1235
1236         .set_frontend = tda1004x_set_fe,
1237         .get_frontend = tda1004x_get_fe,
1238         .get_tune_settings = tda1004x_get_tune_settings,
1239
1240         .read_status = tda1004x_read_status,
1241         .read_ber = tda1004x_read_ber,
1242         .read_signal_strength = tda1004x_read_signal_strength,
1243         .read_snr = tda1004x_read_snr,
1244         .read_ucblocks = tda1004x_read_ucblocks,
1245 };
1246
1247 struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
1248                                      struct i2c_adapter* i2c)
1249 {
1250         struct tda1004x_state *state;
1251         int id;
1252
1253         /* allocate memory for the internal state */
1254         state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL);
1255         if (!state) {
1256                 printk(KERN_ERR "Can't alocate memory for tda10045 state\n");
1257                 return NULL;
1258         }
1259
1260         /* setup the state */
1261         state->config = config;
1262         state->i2c = i2c;
1263         state->demod_type = TDA1004X_DEMOD_TDA10045;
1264
1265         /* check if the demod is there */
1266         id = tda1004x_read_byte(state, TDA1004X_CHIPID);
1267         if (id < 0) {
1268                 printk(KERN_ERR "tda10045: chip is not answering. Giving up.\n");
1269                 kfree(state);
1270                 return NULL;
1271         }
1272
1273         if (id != 0x25) {
1274                 printk(KERN_ERR "Invalid tda1004x ID = 0x%02x. Can't proceed\n", id);
1275                 kfree(state);
1276                 return NULL;
1277         }
1278
1279         /* create dvb_frontend */
1280         memcpy(&state->frontend.ops, &tda10045_ops, sizeof(struct dvb_frontend_ops));
1281         state->frontend.demodulator_priv = state;
1282         return &state->frontend;
1283 }
1284
1285 static struct dvb_frontend_ops tda10046_ops = {
1286         .info = {
1287                 .name = "Philips TDA10046H DVB-T",
1288                 .type = FE_OFDM,
1289                 .frequency_min = 51000000,
1290                 .frequency_max = 858000000,
1291                 .frequency_stepsize = 166667,
1292                 .caps =
1293                     FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1294                     FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1295                     FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
1296                     FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO
1297         },
1298
1299         .release = tda1004x_release,
1300
1301         .init = tda10046_init,
1302         .sleep = tda1004x_sleep,
1303         .write = tda1004x_write,
1304         .i2c_gate_ctrl = tda1004x_i2c_gate_ctrl,
1305
1306         .set_frontend = tda1004x_set_fe,
1307         .get_frontend = tda1004x_get_fe,
1308         .get_tune_settings = tda1004x_get_tune_settings,
1309
1310         .read_status = tda1004x_read_status,
1311         .read_ber = tda1004x_read_ber,
1312         .read_signal_strength = tda1004x_read_signal_strength,
1313         .read_snr = tda1004x_read_snr,
1314         .read_ucblocks = tda1004x_read_ucblocks,
1315 };
1316
1317 struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
1318                                      struct i2c_adapter* i2c)
1319 {
1320         struct tda1004x_state *state;
1321         int id;
1322
1323         /* allocate memory for the internal state */
1324         state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL);
1325         if (!state) {
1326                 printk(KERN_ERR "Can't alocate memory for tda10046 state\n");
1327                 return NULL;
1328         }
1329
1330         /* setup the state */
1331         state->config = config;
1332         state->i2c = i2c;
1333         state->demod_type = TDA1004X_DEMOD_TDA10046;
1334
1335         /* check if the demod is there */
1336         id = tda1004x_read_byte(state, TDA1004X_CHIPID);
1337         if (id < 0) {
1338                 printk(KERN_ERR "tda10046: chip is not answering. Giving up.\n");
1339                 kfree(state);
1340                 return NULL;
1341         }
1342         if (id != 0x46) {
1343                 printk(KERN_ERR "Invalid tda1004x ID = 0x%02x. Can't proceed\n", id);
1344                 kfree(state);
1345                 return NULL;
1346         }
1347
1348         /* create dvb_frontend */
1349         memcpy(&state->frontend.ops, &tda10046_ops, sizeof(struct dvb_frontend_ops));
1350         state->frontend.demodulator_priv = state;
1351         return &state->frontend;
1352 }
1353
1354 module_param(debug, int, 0644);
1355 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
1356
1357 MODULE_DESCRIPTION("Philips TDA10045H & TDA10046H DVB-T Demodulator");
1358 MODULE_AUTHOR("Andrew de Quincey & Robert Schlabbach");
1359 MODULE_LICENSE("GPL");
1360
1361 EXPORT_SYMBOL(tda10045_attach);
1362 EXPORT_SYMBOL(tda10046_attach);