blob: 10cfc05791689323b0d4ab5b967eb22ff7e9e1db [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Support for OR51211 (pcHDTV HD-2000) - VSB
3 *
4 * Copyright (C) 2005 Kirk Lapray <kirk_lapray@bigfoot.com>
5 *
6 * Based on code from Jack Kelliher (kelliher@xmission.com)
7 * Copyright (C) 2002 & pcHDTV, inc.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23*/
24
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -030025#define pr_fmt(fmt) KBUILD_MODNAME ": %s: " fmt, __func__
26
Linus Torvalds1da177e2005-04-16 15:20:36 -070027/*
28 * This driver needs external firmware. Please use the command
29 * "<kerneldir>/Documentation/dvb/get_dvb_firmware or51211" to
Ville Skytt\รค12e66f62006-01-09 15:25:38 -020030 * download/extract it, and then copy it to /usr/lib/hotplug/firmware
31 * or /lib/firmware (depending on configuration of firmware hotplug).
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 */
33#define OR51211_DEFAULT_FIRMWARE "dvb-fe-or51211.fw"
34
35#include <linux/kernel.h>
36#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070037#include <linux/device.h>
38#include <linux/firmware.h>
Tim Schmielau4e57b682005-10-30 15:03:48 -080039#include <linux/string.h>
40#include <linux/slab.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070041#include <asm/byteorder.h>
42
Rusty Scott1444e5f2006-12-04 18:04:16 -030043#include "dvb_math.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070044#include "dvb_frontend.h"
45#include "or51211.h"
46
47static int debug;
48#define dprintk(args...) \
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -030049 do { if (debug) pr_debug(args); } while (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -070050
51static u8 run_buf[] = {0x7f,0x01};
52static u8 cmd_buf[] = {0x04,0x01,0x50,0x80,0x06}; // ATSC
53
54struct or51211_state {
55
56 struct i2c_adapter* i2c;
Linus Torvalds1da177e2005-04-16 15:20:36 -070057
58 /* Configuration settings */
59 const struct or51211_config* config;
60
61 struct dvb_frontend frontend;
62 struct bt878* bt;
63
64 /* Demodulator private data */
65 u8 initialized:1;
Rusty Scott1444e5f2006-12-04 18:04:16 -030066 u32 snr; /* Result of last SNR claculation */
Linus Torvalds1da177e2005-04-16 15:20:36 -070067
68 /* Tuner private data */
69 u32 current_frequency;
70};
71
David Woodhousebc179152008-05-24 00:12:23 +010072static int i2c_writebytes (struct or51211_state* state, u8 reg, const u8 *buf,
Linus Torvalds1da177e2005-04-16 15:20:36 -070073 int len)
74{
75 int err;
76 struct i2c_msg msg;
77 msg.addr = reg;
78 msg.flags = 0;
79 msg.len = len;
David Woodhousebc179152008-05-24 00:12:23 +010080 msg.buf = (u8 *)buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
82 if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -030083 pr_warn("error (addr %02x, err == %i)\n", reg, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 return -EREMOTEIO;
85 }
86
87 return 0;
88}
89
Hans Verkuileda9e4e2008-08-22 17:12:08 -030090static int i2c_readbytes(struct or51211_state *state, u8 reg, u8 *buf, int len)
Linus Torvalds1da177e2005-04-16 15:20:36 -070091{
92 int err;
93 struct i2c_msg msg;
94 msg.addr = reg;
95 msg.flags = I2C_M_RD;
96 msg.len = len;
97 msg.buf = buf;
98
99 if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300100 pr_warn("error (addr %02x, err == %i)\n", reg, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 return -EREMOTEIO;
102 }
103
104 return 0;
105}
106
107static int or51211_load_firmware (struct dvb_frontend* fe,
108 const struct firmware *fw)
109{
110 struct or51211_state* state = fe->demodulator_priv;
111 u8 tudata[585];
112 int i;
113
Hans Verkuile18828e2006-01-09 15:25:28 -0200114 dprintk("Firmware is %zd bytes\n",fw->size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115
116 /* Get eprom data */
117 tudata[0] = 17;
118 if (i2c_writebytes(state,0x50,tudata,1)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300119 pr_warn("error eprom addr\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 return -1;
121 }
122 if (i2c_readbytes(state,0x50,&tudata[145],192)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300123 pr_warn("error eprom\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 return -1;
125 }
126
127 /* Create firmware buffer */
128 for (i = 0; i < 145; i++)
129 tudata[i] = fw->data[i];
130
131 for (i = 0; i < 248; i++)
132 tudata[i+337] = fw->data[145+i];
133
134 state->config->reset(fe);
135
136 if (i2c_writebytes(state,state->config->demod_address,tudata,585)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300137 pr_warn("error 1\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 return -1;
139 }
140 msleep(1);
141
142 if (i2c_writebytes(state,state->config->demod_address,
143 &fw->data[393],8125)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300144 pr_warn("error 2\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145 return -1;
146 }
147 msleep(1);
148
149 if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300150 pr_warn("error 3\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 return -1;
152 }
153
154 /* Wait at least 5 msec */
155 msleep(10);
156 if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300157 pr_warn("error 4\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158 return -1;
159 }
160 msleep(10);
161
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300162 pr_info("Done.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163 return 0;
164};
165
166static int or51211_setmode(struct dvb_frontend* fe, int mode)
167{
168 struct or51211_state* state = fe->demodulator_priv;
169 u8 rec_buf[14];
170
171 state->config->setmode(fe, mode);
172
173 if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300174 pr_warn("error 1\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175 return -1;
176 }
177
178 /* Wait at least 5 msec */
179 msleep(10);
180 if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300181 pr_warn("error 2\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182 return -1;
183 }
184
185 msleep(10);
186
187 /* Set operation mode in Receiver 1 register;
188 * type 1:
189 * data 0x50h Automatic sets receiver channel conditions
190 * Automatic NTSC rejection filter
191 * Enable MPEG serial data output
192 * MPEG2tr
193 * High tuner phase noise
194 * normal +/-150kHz Carrier acquisition range
195 */
196 if (i2c_writebytes(state,state->config->demod_address,cmd_buf,3)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300197 pr_warn("error 3\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 return -1;
199 }
200
201 rec_buf[0] = 0x04;
202 rec_buf[1] = 0x00;
203 rec_buf[2] = 0x03;
204 rec_buf[3] = 0x00;
205 msleep(20);
206 if (i2c_writebytes(state,state->config->demod_address,rec_buf,3)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300207 pr_warn("error 5\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 }
209 msleep(3);
210 if (i2c_readbytes(state,state->config->demod_address,&rec_buf[10],2)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300211 pr_warn("error 6\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212 return -1;
213 }
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300214 dprintk("rec status %02x %02x\n", rec_buf[10], rec_buf[11]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215
216 return 0;
217}
218
Mauro Carvalho Chehabd42c0862011-12-26 15:02:20 -0300219static int or51211_set_parameters(struct dvb_frontend *fe)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220{
Mauro Carvalho Chehabd42c0862011-12-26 15:02:20 -0300221 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222 struct or51211_state* state = fe->demodulator_priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223
224 /* Change only if we are actually changing the channel */
Mauro Carvalho Chehabd42c0862011-12-26 15:02:20 -0300225 if (state->current_frequency != p->frequency) {
Michael Krufkycd2cd0a2007-06-24 18:14:52 -0300226 if (fe->ops.tuner_ops.set_params) {
Mauro Carvalho Chehab14d24d12011-12-24 12:24:33 -0300227 fe->ops.tuner_ops.set_params(fe);
Michael Krufkycd2cd0a2007-06-24 18:14:52 -0300228 if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230
231 /* Set to ATSC mode */
232 or51211_setmode(fe,0);
233
234 /* Update current frequency */
Mauro Carvalho Chehabd42c0862011-12-26 15:02:20 -0300235 state->current_frequency = p->frequency;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 }
237 return 0;
238}
239
240static int or51211_read_status(struct dvb_frontend* fe, fe_status_t* status)
241{
242 struct or51211_state* state = fe->demodulator_priv;
243 unsigned char rec_buf[2];
244 unsigned char snd_buf[] = {0x04,0x00,0x03,0x00};
245 *status = 0;
246
247 /* Receiver Status */
248 if (i2c_writebytes(state,state->config->demod_address,snd_buf,3)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300249 pr_warn("write error\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 return -1;
251 }
252 msleep(3);
253 if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300254 pr_warn("read error\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255 return -1;
256 }
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300257 dprintk("%x %x\n", rec_buf[0], rec_buf[1]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258
259 if (rec_buf[0] & 0x01) { /* Receiver Lock */
260 *status |= FE_HAS_SIGNAL;
261 *status |= FE_HAS_CARRIER;
262 *status |= FE_HAS_VITERBI;
263 *status |= FE_HAS_SYNC;
264 *status |= FE_HAS_LOCK;
265 }
266 return 0;
267}
268
Rusty Scott1444e5f2006-12-04 18:04:16 -0300269/* Calculate SNR estimation (scaled by 2^24)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270
Rusty Scott1444e5f2006-12-04 18:04:16 -0300271 8-VSB SNR equation from Oren datasheets
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272
Rusty Scott1444e5f2006-12-04 18:04:16 -0300273 For 8-VSB:
274 SNR[dB] = 10 * log10(219037.9454 / MSE^2 )
275
276 We re-write the snr equation as:
277 SNR * 2^24 = 10*(c - 2*intlog10(MSE))
278 Where for 8-VSB, c = log10(219037.9454) * 2^24 */
279
280static u32 calculate_snr(u32 mse, u32 c)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281{
Rusty Scott1444e5f2006-12-04 18:04:16 -0300282 if (mse == 0) /* No signal */
283 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284
Rusty Scott1444e5f2006-12-04 18:04:16 -0300285 mse = 2*intlog10(mse);
286 if (mse > c) {
287 /* Negative SNR, which is possible, but realisticly the
288 demod will lose lock before the signal gets this bad. The
289 API only allows for unsigned values, so just return 0 */
290 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 }
Rusty Scott1444e5f2006-12-04 18:04:16 -0300292 return 10*(c - mse);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293}
294
295static int or51211_read_snr(struct dvb_frontend* fe, u16* snr)
296{
297 struct or51211_state* state = fe->demodulator_priv;
298 u8 rec_buf[2];
Rusty Scott1444e5f2006-12-04 18:04:16 -0300299 u8 snd_buf[3];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300
301 /* SNR after Equalizer */
302 snd_buf[0] = 0x04;
303 snd_buf[1] = 0x00;
304 snd_buf[2] = 0x04;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305
306 if (i2c_writebytes(state,state->config->demod_address,snd_buf,3)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300307 pr_warn("error writing snr reg\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 return -1;
309 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300311 pr_warn("read_status read error\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312 return -1;
313 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314
Rusty Scott1444e5f2006-12-04 18:04:16 -0300315 state->snr = calculate_snr(rec_buf[0], 89599047);
316 *snr = (state->snr) >> 16;
317
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300318 dprintk("noise = 0x%02x, snr = %d.%02d dB\n", rec_buf[0],
Rusty Scott1444e5f2006-12-04 18:04:16 -0300319 state->snr >> 24, (((state->snr>>8) & 0xffff) * 100) >> 16);
320
321 return 0;
322}
323
324static int or51211_read_signal_strength(struct dvb_frontend* fe, u16* strength)
325{
326 /* Calculate Strength from SNR up to 35dB */
327 /* Even though the SNR can go higher than 35dB, there is some comfort */
328 /* factor in having a range of strong signals that can show at 100% */
329 struct or51211_state* state = (struct or51211_state*)fe->demodulator_priv;
330 u16 snr;
331 int ret;
332
333 ret = fe->ops.read_snr(fe, &snr);
334 if (ret != 0)
335 return ret;
336 /* Rather than use the 8.8 value snr, use state->snr which is 8.24 */
337 /* scale the range 0 - 35*2^24 into 0 - 65535 */
338 if (state->snr >= 8960 * 0x10000)
339 *strength = 0xffff;
340 else
341 *strength = state->snr / 8960;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342
343 return 0;
344}
345
346static int or51211_read_ber(struct dvb_frontend* fe, u32* ber)
347{
348 *ber = -ENOSYS;
349 return 0;
350}
351
352static int or51211_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
353{
354 *ucblocks = -ENOSYS;
355 return 0;
356}
357
358static int or51211_sleep(struct dvb_frontend* fe)
359{
360 return 0;
361}
362
363static int or51211_init(struct dvb_frontend* fe)
364{
365 struct or51211_state* state = fe->demodulator_priv;
366 const struct or51211_config* config = state->config;
367 const struct firmware* fw;
368 unsigned char get_ver_buf[] = {0x04,0x00,0x30,0x00,0x00};
369 unsigned char rec_buf[14];
370 int ret,i;
371
372 if (!state->initialized) {
373 /* Request the firmware, this will block until it uploads */
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300374 pr_info("Waiting for firmware upload (%s)...\n",
375 OR51211_DEFAULT_FIRMWARE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 ret = config->request_firmware(fe, &fw,
377 OR51211_DEFAULT_FIRMWARE);
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300378 pr_info("Got Hotplug firmware\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 if (ret) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300380 pr_warn("No firmware uploaded "
381 "(timeout or file not found?)\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 return ret;
383 }
384
385 ret = or51211_load_firmware(fe, fw);
Magnus Damm73ca66b2006-07-10 04:44:09 -0700386 release_firmware(fw);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 if (ret) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300388 pr_warn("Writing firmware to device failed!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389 return ret;
390 }
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300391 pr_info("Firmware upload complete.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392
393 /* Set operation mode in Receiver 1 register;
394 * type 1:
395 * data 0x50h Automatic sets receiver channel conditions
396 * Automatic NTSC rejection filter
397 * Enable MPEG serial data output
398 * MPEG2tr
399 * High tuner phase noise
400 * normal +/-150kHz Carrier acquisition range
401 */
402 if (i2c_writebytes(state,state->config->demod_address,
403 cmd_buf,3)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300404 pr_warn("Load DVR Error 5\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 return -1;
406 }
407
408 /* Read back ucode version to besure we loaded correctly */
409 /* and are really up and running */
410 rec_buf[0] = 0x04;
411 rec_buf[1] = 0x00;
412 rec_buf[2] = 0x03;
413 rec_buf[3] = 0x00;
414 msleep(30);
415 if (i2c_writebytes(state,state->config->demod_address,
416 rec_buf,3)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300417 pr_warn("Load DVR Error A\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 return -1;
419 }
420 msleep(3);
421 if (i2c_readbytes(state,state->config->demod_address,
422 &rec_buf[10],2)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300423 pr_warn("Load DVR Error B\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424 return -1;
425 }
426
427 rec_buf[0] = 0x04;
428 rec_buf[1] = 0x00;
429 rec_buf[2] = 0x01;
430 rec_buf[3] = 0x00;
431 msleep(20);
432 if (i2c_writebytes(state,state->config->demod_address,
433 rec_buf,3)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300434 pr_warn("Load DVR Error C\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 return -1;
436 }
437 msleep(3);
438 if (i2c_readbytes(state,state->config->demod_address,
439 &rec_buf[12],2)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300440 pr_warn("Load DVR Error D\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 return -1;
442 }
443
444 for (i = 0; i < 8; i++)
445 rec_buf[i]=0xed;
446
447 for (i = 0; i < 5; i++) {
448 msleep(30);
449 get_ver_buf[4] = i+1;
450 if (i2c_writebytes(state,state->config->demod_address,
451 get_ver_buf,5)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300452 pr_warn("Load DVR Error 6 - %d\n", i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 return -1;
454 }
455 msleep(3);
456
457 if (i2c_readbytes(state,state->config->demod_address,
458 &rec_buf[i*2],2)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300459 pr_warn("Load DVR Error 7 - %d\n", i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 return -1;
461 }
462 /* If we didn't receive the right index, try again */
463 if ((int)rec_buf[i*2+1]!=i+1){
464 i--;
465 }
466 }
Andy Shevchenko870f31c2012-12-17 22:10:00 -0300467 dprintk("read_fwbits %10ph\n", rec_buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300469 pr_info("ver TU%02x%02x%02x VSB mode %02x Status %02x\n",
470 rec_buf[2], rec_buf[4], rec_buf[6], rec_buf[12],
471 rec_buf[10]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472
473 rec_buf[0] = 0x04;
474 rec_buf[1] = 0x00;
475 rec_buf[2] = 0x03;
476 rec_buf[3] = 0x00;
477 msleep(20);
478 if (i2c_writebytes(state,state->config->demod_address,
479 rec_buf,3)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300480 pr_warn("Load DVR Error 8\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481 return -1;
482 }
483 msleep(20);
484 if (i2c_readbytes(state,state->config->demod_address,
485 &rec_buf[8],2)) {
Andy Shevchenkobb9e31f2012-12-18 10:20:28 -0300486 pr_warn("Load DVR Error 9\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487 return -1;
488 }
489 state->initialized = 1;
490 }
491
492 return 0;
493}
494
495static int or51211_get_tune_settings(struct dvb_frontend* fe,
496 struct dvb_frontend_tune_settings* fesettings)
497{
498 fesettings->min_delay_ms = 500;
499 fesettings->step_size = 0;
500 fesettings->max_drift = 0;
501 return 0;
502}
503
504static void or51211_release(struct dvb_frontend* fe)
505{
506 struct or51211_state* state = fe->demodulator_priv;
507 state->config->sleep(fe);
508 kfree(state);
509}
510
511static struct dvb_frontend_ops or51211_ops;
512
513struct dvb_frontend* or51211_attach(const struct or51211_config* config,
514 struct i2c_adapter* i2c)
515{
516 struct or51211_state* state = NULL;
517
518 /* Allocate memory for the internal state */
Matthias Schwarzott084e24a2009-08-10 22:51:01 -0300519 state = kzalloc(sizeof(struct or51211_state), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520 if (state == NULL)
Mauro Carvalho Chehab3473e342008-01-07 10:45:47 -0300521 return NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522
523 /* Setup the state */
524 state->config = config;
525 state->i2c = i2c;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526 state->initialized = 0;
527 state->current_frequency = 0;
528
529 /* Create dvb_frontend */
Patrick Boettcherdea74862006-05-14 05:01:31 -0300530 memcpy(&state->frontend.ops, &or51211_ops, sizeof(struct dvb_frontend_ops));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531 state->frontend.demodulator_priv = state;
532 return &state->frontend;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533}
534
535static struct dvb_frontend_ops or51211_ops = {
Mauro Carvalho Chehabd42c0862011-12-26 15:02:20 -0300536 .delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537 .info = {
538 .name = "Oren OR51211 VSB Frontend",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539 .frequency_min = 44000000,
540 .frequency_max = 958000000,
541 .frequency_stepsize = 166666,
542 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
543 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
544 FE_CAN_8VSB
545 },
546
547 .release = or51211_release,
548
549 .init = or51211_init,
550 .sleep = or51211_sleep,
551
Mauro Carvalho Chehabd42c0862011-12-26 15:02:20 -0300552 .set_frontend = or51211_set_parameters,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553 .get_tune_settings = or51211_get_tune_settings,
554
555 .read_status = or51211_read_status,
556 .read_ber = or51211_read_ber,
557 .read_signal_strength = or51211_read_signal_strength,
558 .read_snr = or51211_read_snr,
559 .read_ucblocks = or51211_read_ucblocks,
560};
561
562module_param(debug, int, 0644);
563MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
564
565MODULE_DESCRIPTION("Oren OR51211 VSB [pcHDTV HD-2000] Demodulator Driver");
566MODULE_AUTHOR("Kirk Lapray");
567MODULE_LICENSE("GPL");
568
569EXPORT_SYMBOL(or51211_attach);
570