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8d009a0c DF |
1 | /* |
2 | * Driver for Xceive XC4000 "QAM/8VSB single chip tuner" | |
3 | * | |
4 | * Copyright (c) 2007 Xceive Corporation | |
5 | * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> | |
6 | * Copyright (c) 2009 Devin Heitmueller <dheitmueller@kernellabs.com> | |
7 | * Copyright (c) 2009 Davide Ferri <d.ferri@zero11.it> | |
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 | * | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/videodev2.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/dvb/frontend.h> | |
30 | #include <linux/i2c.h> | |
5614942b | 31 | #include <linux/mutex.h> |
11091a31 | 32 | #include <asm/unaligned.h> |
8d009a0c DF |
33 | |
34 | #include "dvb_frontend.h" | |
35 | ||
36 | #include "xc4000.h" | |
37 | #include "tuner-i2c.h" | |
11091a31 | 38 | #include "tuner-xc2028-types.h" |
8d009a0c | 39 | |
4922cec5 | 40 | static int debug; |
8d009a0c DF |
41 | module_param(debug, int, 0644); |
42 | MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); | |
43 | ||
44 | static int no_poweroff; | |
45 | module_param(no_poweroff, int, 0644); | |
46 | MODULE_PARM_DESC(no_poweroff, "0 (default) powers device off when not used.\n" | |
47 | "\t\t1 keep device energized and with tuner ready all the times.\n" | |
48 | "\t\tFaster, but consumes more power and keeps the device hotter"); | |
49 | ||
fa285bc1 IV |
50 | #define XC4000_DEFAULT_FIRMWARE "xc4000.fw" |
51 | ||
52 | static char firmware_name[30]; | |
53 | module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0); | |
54 | MODULE_PARM_DESC(firmware_name, "\n\t\tFirmware file name. Allows overriding " | |
55 | "the default firmware\n" | |
56 | "\t\tname."); | |
57 | ||
8d009a0c DF |
58 | static DEFINE_MUTEX(xc4000_list_mutex); |
59 | static LIST_HEAD(hybrid_tuner_instance_list); | |
60 | ||
61 | #define dprintk(level, fmt, arg...) if (debug >= level) \ | |
62 | printk(KERN_INFO "%s: " fmt, "xc4000", ## arg) | |
63 | ||
11091a31 DH |
64 | /* struct for storing firmware table */ |
65 | struct firmware_description { | |
66 | unsigned int type; | |
67 | v4l2_std_id id; | |
68 | __u16 int_freq; | |
69 | unsigned char *ptr; | |
70 | unsigned int size; | |
71 | }; | |
72 | ||
73 | struct firmware_properties { | |
74 | unsigned int type; | |
75 | v4l2_std_id id; | |
76 | v4l2_std_id std_req; | |
77 | __u16 int_freq; | |
78 | unsigned int scode_table; | |
e3bb7c60 | 79 | int scode_nr; |
11091a31 | 80 | }; |
8d009a0c DF |
81 | |
82 | struct xc4000_priv { | |
83 | struct tuner_i2c_props i2c_props; | |
84 | struct list_head hybrid_tuner_instance_list; | |
11091a31 | 85 | struct firmware_description *firm; |
fbe4a29f IV |
86 | int firm_size; |
87 | __u16 firm_version; | |
88 | u32 if_khz; | |
89 | u32 freq_hz; | |
90 | u32 bandwidth; | |
91 | u8 video_standard; | |
92 | u8 rf_mode; | |
93 | u8 ignore_i2c_write_errors; | |
94 | /* struct xc2028_ctrl ctrl; */ | |
d0962382 | 95 | struct firmware_properties cur_fw; |
fbe4a29f IV |
96 | __u16 hwmodel; |
97 | __u16 hwvers; | |
5614942b | 98 | struct mutex lock; |
8d009a0c DF |
99 | }; |
100 | ||
101 | /* Misc Defines */ | |
4911085f | 102 | #define MAX_TV_STANDARD 24 |
8d009a0c DF |
103 | #define XC_MAX_I2C_WRITE_LENGTH 64 |
104 | ||
105 | /* Signal Types */ | |
106 | #define XC_RF_MODE_AIR 0 | |
107 | #define XC_RF_MODE_CABLE 1 | |
108 | ||
109 | /* Result codes */ | |
110 | #define XC_RESULT_SUCCESS 0 | |
111 | #define XC_RESULT_RESET_FAILURE 1 | |
112 | #define XC_RESULT_I2C_WRITE_FAILURE 2 | |
113 | #define XC_RESULT_I2C_READ_FAILURE 3 | |
114 | #define XC_RESULT_OUT_OF_RANGE 5 | |
115 | ||
116 | /* Product id */ | |
117 | #define XC_PRODUCT_ID_FW_NOT_LOADED 0x2000 | |
e3bb7c60 | 118 | #define XC_PRODUCT_ID_FW_LOADED 0x0FA0 |
8d009a0c | 119 | |
ee4c3cd6 | 120 | /* Registers (Write-only) */ |
8d009a0c DF |
121 | #define XREG_INIT 0x00 |
122 | #define XREG_VIDEO_MODE 0x01 | |
123 | #define XREG_AUDIO_MODE 0x02 | |
124 | #define XREG_RF_FREQ 0x03 | |
125 | #define XREG_D_CODE 0x04 | |
ee4c3cd6 DH |
126 | #define XREG_DIRECTSITTING_MODE 0x05 |
127 | #define XREG_SEEK_MODE 0x06 | |
128 | #define XREG_POWER_DOWN 0x08 | |
129 | #define XREG_SIGNALSOURCE 0x0A | |
130 | #define XREG_AMPLITUDE 0x10 | |
8d009a0c | 131 | |
ee4c3cd6 | 132 | /* Registers (Read-only) */ |
8d009a0c DF |
133 | #define XREG_ADC_ENV 0x00 |
134 | #define XREG_QUALITY 0x01 | |
135 | #define XREG_FRAME_LINES 0x02 | |
136 | #define XREG_HSYNC_FREQ 0x03 | |
137 | #define XREG_LOCK 0x04 | |
138 | #define XREG_FREQ_ERROR 0x05 | |
139 | #define XREG_SNR 0x06 | |
140 | #define XREG_VERSION 0x07 | |
141 | #define XREG_PRODUCT_ID 0x08 | |
8d009a0c DF |
142 | |
143 | /* | |
144 | Basic firmware description. This will remain with | |
145 | the driver for documentation purposes. | |
146 | ||
147 | This represents an I2C firmware file encoded as a | |
148 | string of unsigned char. Format is as follows: | |
149 | ||
150 | char[0 ]=len0_MSB -> len = len_MSB * 256 + len_LSB | |
151 | char[1 ]=len0_LSB -> length of first write transaction | |
152 | char[2 ]=data0 -> first byte to be sent | |
153 | char[3 ]=data1 | |
154 | char[4 ]=data2 | |
155 | char[ ]=... | |
156 | char[M ]=dataN -> last byte to be sent | |
157 | char[M+1]=len1_MSB -> len = len_MSB * 256 + len_LSB | |
158 | char[M+2]=len1_LSB -> length of second write transaction | |
159 | char[M+3]=data0 | |
160 | char[M+4]=data1 | |
161 | ... | |
162 | etc. | |
163 | ||
164 | The [len] value should be interpreted as follows: | |
165 | ||
166 | len= len_MSB _ len_LSB | |
167 | len=1111_1111_1111_1111 : End of I2C_SEQUENCE | |
168 | len=0000_0000_0000_0000 : Reset command: Do hardware reset | |
169 | len=0NNN_NNNN_NNNN_NNNN : Normal transaction: number of bytes = {1:32767) | |
170 | len=1WWW_WWWW_WWWW_WWWW : Wait command: wait for {1:32767} ms | |
171 | ||
172 | For the RESET and WAIT commands, the two following bytes will contain | |
173 | immediately the length of the following transaction. | |
8d009a0c | 174 | */ |
fbe4a29f | 175 | |
8d009a0c | 176 | struct XC_TV_STANDARD { |
fbe4a29f IV |
177 | const char *Name; |
178 | u16 AudioMode; | |
179 | u16 VideoMode; | |
4911085f | 180 | u16 int_freq; |
8d009a0c DF |
181 | }; |
182 | ||
183 | /* Tuner standards */ | |
ed23db32 DH |
184 | #define XC4000_MN_NTSC_PAL_BTSC 0 |
185 | #define XC4000_MN_NTSC_PAL_A2 1 | |
186 | #define XC4000_MN_NTSC_PAL_EIAJ 2 | |
187 | #define XC4000_MN_NTSC_PAL_Mono 3 | |
188 | #define XC4000_BG_PAL_A2 4 | |
189 | #define XC4000_BG_PAL_NICAM 5 | |
190 | #define XC4000_BG_PAL_MONO 6 | |
191 | #define XC4000_I_PAL_NICAM 7 | |
192 | #define XC4000_I_PAL_NICAM_MONO 8 | |
193 | #define XC4000_DK_PAL_A2 9 | |
194 | #define XC4000_DK_PAL_NICAM 10 | |
195 | #define XC4000_DK_PAL_MONO 11 | |
196 | #define XC4000_DK_SECAM_A2DK1 12 | |
e3bb7c60 MCC |
197 | #define XC4000_DK_SECAM_A2LDK3 13 |
198 | #define XC4000_DK_SECAM_A2MONO 14 | |
4911085f IV |
199 | #define XC4000_DK_SECAM_NICAM 15 |
200 | #define XC4000_L_SECAM_NICAM 16 | |
201 | #define XC4000_LC_SECAM_NICAM 17 | |
202 | #define XC4000_DTV6 18 | |
203 | #define XC4000_DTV8 19 | |
204 | #define XC4000_DTV7_8 20 | |
205 | #define XC4000_DTV7 21 | |
206 | #define XC4000_FM_Radio_INPUT2 22 | |
207 | #define XC4000_FM_Radio_INPUT1 23 | |
8d009a0c | 208 | |
8d009a0c | 209 | static struct XC_TV_STANDARD XC4000_Standard[MAX_TV_STANDARD] = { |
4911085f IV |
210 | {"M/N-NTSC/PAL-BTSC", 0x0000, 0x80A0, 4500}, |
211 | {"M/N-NTSC/PAL-A2", 0x0000, 0x80A0, 4600}, | |
212 | {"M/N-NTSC/PAL-EIAJ", 0x0040, 0x80A0, 4500}, | |
213 | {"M/N-NTSC/PAL-Mono", 0x0078, 0x80A0, 4500}, | |
214 | {"B/G-PAL-A2", 0x0000, 0x8159, 5640}, | |
215 | {"B/G-PAL-NICAM", 0x0004, 0x8159, 5740}, | |
216 | {"B/G-PAL-MONO", 0x0078, 0x8159, 5500}, | |
217 | {"I-PAL-NICAM", 0x0080, 0x8049, 6240}, | |
218 | {"I-PAL-NICAM-MONO", 0x0078, 0x8049, 6000}, | |
219 | {"D/K-PAL-A2", 0x0000, 0x8049, 6380}, | |
220 | {"D/K-PAL-NICAM", 0x0080, 0x8049, 6200}, | |
221 | {"D/K-PAL-MONO", 0x0078, 0x8049, 6500}, | |
222 | {"D/K-SECAM-A2 DK1", 0x0000, 0x8049, 6340}, | |
223 | {"D/K-SECAM-A2 L/DK3", 0x0000, 0x8049, 6000}, | |
224 | {"D/K-SECAM-A2 MONO", 0x0078, 0x8049, 6500}, | |
225 | {"D/K-SECAM-NICAM", 0x0080, 0x8049, 6200}, | |
226 | {"L-SECAM-NICAM", 0x8080, 0x0009, 6200}, | |
227 | {"L'-SECAM-NICAM", 0x8080, 0x4009, 6200}, | |
228 | {"DTV6", 0x00C0, 0x8002, 0}, | |
229 | {"DTV8", 0x00C0, 0x800B, 0}, | |
230 | {"DTV7/8", 0x00C0, 0x801B, 0}, | |
231 | {"DTV7", 0x00C0, 0x8007, 0}, | |
232 | {"FM Radio-INPUT2", 0x0008, 0x9800,10700}, | |
233 | {"FM Radio-INPUT1", 0x0008, 0x9000,10700} | |
8d009a0c DF |
234 | }; |
235 | ||
8d009a0c DF |
236 | static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val); |
237 | static int xc4000_TunerReset(struct dvb_frontend *fe); | |
238 | ||
239 | static int xc_send_i2c_data(struct xc4000_priv *priv, u8 *buf, int len) | |
240 | { | |
241 | struct i2c_msg msg = { .addr = priv->i2c_props.addr, | |
242 | .flags = 0, .buf = buf, .len = len }; | |
8d009a0c | 243 | if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) { |
799ed11a DH |
244 | if (priv->ignore_i2c_write_errors == 0) { |
245 | printk(KERN_ERR "xc4000: I2C write failed (len=%i)\n", | |
246 | len); | |
247 | if (len == 4) { | |
248 | printk("bytes %02x %02x %02x %02x\n", buf[0], | |
249 | buf[1], buf[2], buf[3]); | |
250 | } | |
251 | return XC_RESULT_I2C_WRITE_FAILURE; | |
252 | } | |
8d009a0c DF |
253 | } |
254 | return XC_RESULT_SUCCESS; | |
255 | } | |
256 | ||
8d009a0c DF |
257 | static void xc_wait(int wait_ms) |
258 | { | |
259 | msleep(wait_ms); | |
260 | } | |
261 | ||
262 | static int xc4000_TunerReset(struct dvb_frontend *fe) | |
263 | { | |
264 | struct xc4000_priv *priv = fe->tuner_priv; | |
265 | int ret; | |
266 | ||
267 | dprintk(1, "%s()\n", __func__); | |
268 | ||
269 | if (fe->callback) { | |
270 | ret = fe->callback(((fe->dvb) && (fe->dvb->priv)) ? | |
271 | fe->dvb->priv : | |
272 | priv->i2c_props.adap->algo_data, | |
273 | DVB_FRONTEND_COMPONENT_TUNER, | |
274 | XC4000_TUNER_RESET, 0); | |
275 | if (ret) { | |
276 | printk(KERN_ERR "xc4000: reset failed\n"); | |
277 | return XC_RESULT_RESET_FAILURE; | |
278 | } | |
279 | } else { | |
280 | printk(KERN_ERR "xc4000: no tuner reset callback function, fatal\n"); | |
281 | return XC_RESULT_RESET_FAILURE; | |
282 | } | |
283 | return XC_RESULT_SUCCESS; | |
284 | } | |
285 | ||
286 | static int xc_write_reg(struct xc4000_priv *priv, u16 regAddr, u16 i2cData) | |
287 | { | |
288 | u8 buf[4]; | |
8d009a0c DF |
289 | int result; |
290 | ||
291 | buf[0] = (regAddr >> 8) & 0xFF; | |
292 | buf[1] = regAddr & 0xFF; | |
293 | buf[2] = (i2cData >> 8) & 0xFF; | |
294 | buf[3] = i2cData & 0xFF; | |
295 | result = xc_send_i2c_data(priv, buf, 4); | |
8d009a0c DF |
296 | |
297 | return result; | |
298 | } | |
299 | ||
300 | static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence) | |
301 | { | |
302 | struct xc4000_priv *priv = fe->tuner_priv; | |
303 | ||
304 | int i, nbytes_to_send, result; | |
305 | unsigned int len, pos, index; | |
306 | u8 buf[XC_MAX_I2C_WRITE_LENGTH]; | |
307 | ||
308 | index = 0; | |
309 | while ((i2c_sequence[index] != 0xFF) || | |
310 | (i2c_sequence[index + 1] != 0xFF)) { | |
311 | len = i2c_sequence[index] * 256 + i2c_sequence[index+1]; | |
312 | if (len == 0x0000) { | |
313 | /* RESET command */ | |
314 | result = xc4000_TunerReset(fe); | |
315 | index += 2; | |
316 | if (result != XC_RESULT_SUCCESS) | |
317 | return result; | |
318 | } else if (len & 0x8000) { | |
319 | /* WAIT command */ | |
320 | xc_wait(len & 0x7FFF); | |
321 | index += 2; | |
322 | } else { | |
323 | /* Send i2c data whilst ensuring individual transactions | |
324 | * do not exceed XC_MAX_I2C_WRITE_LENGTH bytes. | |
325 | */ | |
326 | index += 2; | |
327 | buf[0] = i2c_sequence[index]; | |
328 | buf[1] = i2c_sequence[index + 1]; | |
329 | pos = 2; | |
330 | while (pos < len) { | |
331 | if ((len - pos) > XC_MAX_I2C_WRITE_LENGTH - 2) | |
332 | nbytes_to_send = | |
333 | XC_MAX_I2C_WRITE_LENGTH; | |
334 | else | |
335 | nbytes_to_send = (len - pos + 2); | |
336 | for (i = 2; i < nbytes_to_send; i++) { | |
337 | buf[i] = i2c_sequence[index + pos + | |
338 | i - 2]; | |
339 | } | |
340 | result = xc_send_i2c_data(priv, buf, | |
341 | nbytes_to_send); | |
342 | ||
343 | if (result != XC_RESULT_SUCCESS) | |
344 | return result; | |
345 | ||
346 | pos += nbytes_to_send - 2; | |
347 | } | |
348 | index += len; | |
349 | } | |
350 | } | |
351 | return XC_RESULT_SUCCESS; | |
352 | } | |
353 | ||
8d009a0c DF |
354 | static int xc_SetTVStandard(struct xc4000_priv *priv, |
355 | u16 VideoMode, u16 AudioMode) | |
356 | { | |
357 | int ret; | |
358 | dprintk(1, "%s(0x%04x,0x%04x)\n", __func__, VideoMode, AudioMode); | |
359 | dprintk(1, "%s() Standard = %s\n", | |
360 | __func__, | |
361 | XC4000_Standard[priv->video_standard].Name); | |
362 | ||
799ed11a DH |
363 | /* Don't complain when the request fails because of i2c stretching */ |
364 | priv->ignore_i2c_write_errors = 1; | |
365 | ||
8d009a0c DF |
366 | ret = xc_write_reg(priv, XREG_VIDEO_MODE, VideoMode); |
367 | if (ret == XC_RESULT_SUCCESS) | |
368 | ret = xc_write_reg(priv, XREG_AUDIO_MODE, AudioMode); | |
369 | ||
799ed11a DH |
370 | priv->ignore_i2c_write_errors = 0; |
371 | ||
8d009a0c DF |
372 | return ret; |
373 | } | |
374 | ||
375 | static int xc_SetSignalSource(struct xc4000_priv *priv, u16 rf_mode) | |
376 | { | |
377 | dprintk(1, "%s(%d) Source = %s\n", __func__, rf_mode, | |
378 | rf_mode == XC_RF_MODE_AIR ? "ANTENNA" : "CABLE"); | |
379 | ||
380 | if ((rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE)) { | |
381 | rf_mode = XC_RF_MODE_CABLE; | |
382 | printk(KERN_ERR | |
383 | "%s(), Invalid mode, defaulting to CABLE", | |
384 | __func__); | |
385 | } | |
386 | return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode); | |
387 | } | |
388 | ||
389 | static const struct dvb_tuner_ops xc4000_tuner_ops; | |
390 | ||
391 | static int xc_set_RF_frequency(struct xc4000_priv *priv, u32 freq_hz) | |
392 | { | |
393 | u16 freq_code; | |
394 | ||
395 | dprintk(1, "%s(%u)\n", __func__, freq_hz); | |
396 | ||
397 | if ((freq_hz > xc4000_tuner_ops.info.frequency_max) || | |
398 | (freq_hz < xc4000_tuner_ops.info.frequency_min)) | |
399 | return XC_RESULT_OUT_OF_RANGE; | |
400 | ||
401 | freq_code = (u16)(freq_hz / 15625); | |
402 | ||
403 | /* WAS: Starting in firmware version 1.1.44, Xceive recommends using the | |
404 | FINERFREQ for all normal tuning (the doc indicates reg 0x03 should | |
405 | only be used for fast scanning for channel lock) */ | |
406 | return xc_write_reg(priv, XREG_RF_FREQ, freq_code); /* WAS: XREG_FINERFREQ */ | |
407 | } | |
408 | ||
8d009a0c DF |
409 | static int xc_get_ADC_Envelope(struct xc4000_priv *priv, u16 *adc_envelope) |
410 | { | |
411 | return xc4000_readreg(priv, XREG_ADC_ENV, adc_envelope); | |
412 | } | |
413 | ||
414 | static int xc_get_frequency_error(struct xc4000_priv *priv, u32 *freq_error_hz) | |
415 | { | |
416 | int result; | |
417 | u16 regData; | |
418 | u32 tmp; | |
419 | ||
420 | result = xc4000_readreg(priv, XREG_FREQ_ERROR, ®Data); | |
421 | if (result != XC_RESULT_SUCCESS) | |
422 | return result; | |
423 | ||
1368ceb2 IV |
424 | tmp = (u32)regData & 0xFFFFU; |
425 | tmp = (tmp < 0x8000U ? tmp : 0x10000U - tmp); | |
426 | (*freq_error_hz) = tmp * 15625; | |
8d009a0c DF |
427 | return result; |
428 | } | |
429 | ||
430 | static int xc_get_lock_status(struct xc4000_priv *priv, u16 *lock_status) | |
431 | { | |
432 | return xc4000_readreg(priv, XREG_LOCK, lock_status); | |
433 | } | |
434 | ||
435 | static int xc_get_version(struct xc4000_priv *priv, | |
436 | u8 *hw_majorversion, u8 *hw_minorversion, | |
437 | u8 *fw_majorversion, u8 *fw_minorversion) | |
438 | { | |
439 | u16 data; | |
440 | int result; | |
441 | ||
442 | result = xc4000_readreg(priv, XREG_VERSION, &data); | |
443 | if (result != XC_RESULT_SUCCESS) | |
444 | return result; | |
445 | ||
446 | (*hw_majorversion) = (data >> 12) & 0x0F; | |
447 | (*hw_minorversion) = (data >> 8) & 0x0F; | |
448 | (*fw_majorversion) = (data >> 4) & 0x0F; | |
449 | (*fw_minorversion) = data & 0x0F; | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
8d009a0c DF |
454 | static int xc_get_hsync_freq(struct xc4000_priv *priv, u32 *hsync_freq_hz) |
455 | { | |
456 | u16 regData; | |
457 | int result; | |
458 | ||
459 | result = xc4000_readreg(priv, XREG_HSYNC_FREQ, ®Data); | |
460 | if (result != XC_RESULT_SUCCESS) | |
461 | return result; | |
462 | ||
463 | (*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100; | |
464 | return result; | |
465 | } | |
466 | ||
467 | static int xc_get_frame_lines(struct xc4000_priv *priv, u16 *frame_lines) | |
468 | { | |
469 | return xc4000_readreg(priv, XREG_FRAME_LINES, frame_lines); | |
470 | } | |
471 | ||
472 | static int xc_get_quality(struct xc4000_priv *priv, u16 *quality) | |
473 | { | |
474 | return xc4000_readreg(priv, XREG_QUALITY, quality); | |
475 | } | |
476 | ||
477 | static u16 WaitForLock(struct xc4000_priv *priv) | |
478 | { | |
479 | u16 lockState = 0; | |
480 | int watchDogCount = 40; | |
481 | ||
482 | while ((lockState == 0) && (watchDogCount > 0)) { | |
483 | xc_get_lock_status(priv, &lockState); | |
484 | if (lockState != 1) { | |
485 | xc_wait(5); | |
486 | watchDogCount--; | |
487 | } | |
488 | } | |
489 | return lockState; | |
490 | } | |
491 | ||
492 | #define XC_TUNE_ANALOG 0 | |
493 | #define XC_TUNE_DIGITAL 1 | |
494 | static int xc_tune_channel(struct xc4000_priv *priv, u32 freq_hz, int mode) | |
495 | { | |
fbe4a29f IV |
496 | int found = 0; |
497 | int result = 0; | |
8d009a0c DF |
498 | |
499 | dprintk(1, "%s(%u)\n", __func__, freq_hz); | |
500 | ||
799ed11a DH |
501 | /* Don't complain when the request fails because of i2c stretching */ |
502 | priv->ignore_i2c_write_errors = 1; | |
503 | result = xc_set_RF_frequency(priv, freq_hz); | |
504 | priv->ignore_i2c_write_errors = 0; | |
505 | ||
506 | if (result != XC_RESULT_SUCCESS) | |
8d009a0c DF |
507 | return 0; |
508 | ||
509 | if (mode == XC_TUNE_ANALOG) { | |
510 | if (WaitForLock(priv) == 1) | |
511 | found = 1; | |
512 | } | |
513 | ||
514 | return found; | |
515 | } | |
516 | ||
517 | static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val) | |
518 | { | |
519 | u8 buf[2] = { reg >> 8, reg & 0xff }; | |
520 | u8 bval[2] = { 0, 0 }; | |
521 | struct i2c_msg msg[2] = { | |
522 | { .addr = priv->i2c_props.addr, | |
523 | .flags = 0, .buf = &buf[0], .len = 2 }, | |
524 | { .addr = priv->i2c_props.addr, | |
525 | .flags = I2C_M_RD, .buf = &bval[0], .len = 2 }, | |
526 | }; | |
527 | ||
528 | if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) { | |
529 | printk(KERN_WARNING "xc4000: I2C read failed\n"); | |
530 | return -EREMOTEIO; | |
531 | } | |
532 | ||
533 | *val = (bval[0] << 8) | bval[1]; | |
534 | return XC_RESULT_SUCCESS; | |
535 | } | |
536 | ||
e3bb7c60 | 537 | #define dump_firm_type(t) dump_firm_type_and_int_freq(t, 0) |
d0962382 DH |
538 | static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq) |
539 | { | |
540 | if (type & BASE) | |
541 | printk("BASE "); | |
542 | if (type & INIT1) | |
543 | printk("INIT1 "); | |
544 | if (type & F8MHZ) | |
545 | printk("F8MHZ "); | |
546 | if (type & MTS) | |
547 | printk("MTS "); | |
548 | if (type & D2620) | |
549 | printk("D2620 "); | |
550 | if (type & D2633) | |
551 | printk("D2633 "); | |
552 | if (type & DTV6) | |
553 | printk("DTV6 "); | |
554 | if (type & QAM) | |
555 | printk("QAM "); | |
556 | if (type & DTV7) | |
557 | printk("DTV7 "); | |
558 | if (type & DTV78) | |
559 | printk("DTV78 "); | |
560 | if (type & DTV8) | |
561 | printk("DTV8 "); | |
562 | if (type & FM) | |
563 | printk("FM "); | |
564 | if (type & INPUT1) | |
565 | printk("INPUT1 "); | |
566 | if (type & LCD) | |
567 | printk("LCD "); | |
568 | if (type & NOGD) | |
569 | printk("NOGD "); | |
570 | if (type & MONO) | |
571 | printk("MONO "); | |
572 | if (type & ATSC) | |
573 | printk("ATSC "); | |
574 | if (type & IF) | |
575 | printk("IF "); | |
576 | if (type & LG60) | |
577 | printk("LG60 "); | |
578 | if (type & ATI638) | |
579 | printk("ATI638 "); | |
580 | if (type & OREN538) | |
581 | printk("OREN538 "); | |
582 | if (type & OREN36) | |
583 | printk("OREN36 "); | |
584 | if (type & TOYOTA388) | |
585 | printk("TOYOTA388 "); | |
586 | if (type & TOYOTA794) | |
587 | printk("TOYOTA794 "); | |
588 | if (type & DIBCOM52) | |
589 | printk("DIBCOM52 "); | |
590 | if (type & ZARLINK456) | |
591 | printk("ZARLINK456 "); | |
592 | if (type & CHINA) | |
593 | printk("CHINA "); | |
594 | if (type & F6MHZ) | |
595 | printk("F6MHZ "); | |
596 | if (type & INPUT2) | |
597 | printk("INPUT2 "); | |
598 | if (type & SCODE) | |
599 | printk("SCODE "); | |
600 | if (type & HAS_IF) | |
601 | printk("HAS_IF_%d ", int_freq); | |
602 | } | |
603 | ||
11091a31 DH |
604 | static int seek_firmware(struct dvb_frontend *fe, unsigned int type, |
605 | v4l2_std_id *id) | |
606 | { | |
607 | struct xc4000_priv *priv = fe->tuner_priv; | |
608 | int i, best_i = -1, best_nr_matches = 0; | |
609 | unsigned int type_mask = 0; | |
610 | ||
11091a31 DH |
611 | if (!priv->firm) { |
612 | printk("Error! firmware not loaded\n"); | |
613 | return -EINVAL; | |
614 | } | |
615 | ||
616 | if (((type & ~SCODE) == 0) && (*id == 0)) | |
617 | *id = V4L2_STD_PAL; | |
618 | ||
619 | if (type & BASE) | |
620 | type_mask = BASE_TYPES; | |
621 | else if (type & SCODE) { | |
622 | type &= SCODE_TYPES; | |
623 | type_mask = SCODE_TYPES & ~HAS_IF; | |
624 | } else if (type & DTV_TYPES) | |
625 | type_mask = DTV_TYPES; | |
626 | else if (type & STD_SPECIFIC_TYPES) | |
627 | type_mask = STD_SPECIFIC_TYPES; | |
628 | ||
629 | type &= type_mask; | |
630 | ||
631 | if (!(type & SCODE)) | |
632 | type_mask = ~0; | |
633 | ||
634 | /* Seek for exact match */ | |
635 | for (i = 0; i < priv->firm_size; i++) { | |
636 | if ((type == (priv->firm[i].type & type_mask)) && | |
637 | (*id == priv->firm[i].id)) | |
638 | goto found; | |
639 | } | |
640 | ||
641 | /* Seek for generic video standard match */ | |
642 | for (i = 0; i < priv->firm_size; i++) { | |
643 | v4l2_std_id match_mask; | |
644 | int nr_matches; | |
645 | ||
646 | if (type != (priv->firm[i].type & type_mask)) | |
647 | continue; | |
648 | ||
649 | match_mask = *id & priv->firm[i].id; | |
650 | if (!match_mask) | |
651 | continue; | |
652 | ||
653 | if ((*id & match_mask) == *id) | |
654 | goto found; /* Supports all the requested standards */ | |
655 | ||
656 | nr_matches = hweight64(match_mask); | |
657 | if (nr_matches > best_nr_matches) { | |
658 | best_nr_matches = nr_matches; | |
659 | best_i = i; | |
660 | } | |
661 | } | |
662 | ||
663 | if (best_nr_matches > 0) { | |
664 | printk("Selecting best matching firmware (%d bits) for " | |
665 | "type=", best_nr_matches); | |
11091a31 DH |
666 | printk("(%x), id %016llx:\n", type, (unsigned long long)*id); |
667 | i = best_i; | |
668 | goto found; | |
669 | } | |
670 | ||
671 | /*FIXME: Would make sense to seek for type "hint" match ? */ | |
672 | ||
673 | i = -ENOENT; | |
674 | goto ret; | |
675 | ||
676 | found: | |
677 | *id = priv->firm[i].id; | |
678 | ||
679 | ret: | |
11091a31 | 680 | if (debug) { |
b6cdb5be DH |
681 | printk("%s firmware for type=", (i < 0) ? "Can't find" : |
682 | "Found"); | |
d0962382 | 683 | dump_firm_type(type); |
11091a31 DH |
684 | printk("(%x), id %016llx.\n", type, (unsigned long long)*id); |
685 | } | |
686 | return i; | |
687 | } | |
688 | ||
689 | static int load_firmware(struct dvb_frontend *fe, unsigned int type, | |
690 | v4l2_std_id *id) | |
691 | { | |
692 | struct xc4000_priv *priv = fe->tuner_priv; | |
693 | int pos, rc; | |
31f880e2 | 694 | unsigned char *p; |
11091a31 | 695 | |
11091a31 DH |
696 | pos = seek_firmware(fe, type, id); |
697 | if (pos < 0) | |
698 | return pos; | |
699 | ||
11091a31 | 700 | p = priv->firm[pos].ptr; |
11091a31 | 701 | |
799ed11a DH |
702 | /* Don't complain when the request fails because of i2c stretching */ |
703 | priv->ignore_i2c_write_errors = 1; | |
704 | ||
31f880e2 | 705 | rc = xc_load_i2c_sequence(fe, p); |
11091a31 | 706 | |
799ed11a DH |
707 | priv->ignore_i2c_write_errors = 0; |
708 | ||
31f880e2 | 709 | return rc; |
11091a31 DH |
710 | } |
711 | ||
8d009a0c DF |
712 | static int xc4000_fwupload(struct dvb_frontend *fe) |
713 | { | |
714 | struct xc4000_priv *priv = fe->tuner_priv; | |
11091a31 DH |
715 | const struct firmware *fw = NULL; |
716 | const unsigned char *p, *endp; | |
717 | int rc = 0; | |
718 | int n, n_array; | |
719 | char name[33]; | |
fbe4a29f | 720 | const char *fname; |
11091a31 | 721 | |
fa285bc1 IV |
722 | if (firmware_name[0] != '\0') |
723 | fname = firmware_name; | |
724 | else | |
725 | fname = XC4000_DEFAULT_FIRMWARE; | |
11091a31 DH |
726 | |
727 | printk("Reading firmware %s\n", fname); | |
728 | rc = request_firmware(&fw, fname, priv->i2c_props.adap->dev.parent); | |
729 | if (rc < 0) { | |
730 | if (rc == -ENOENT) | |
731 | printk("Error: firmware %s not found.\n", | |
732 | fname); | |
733 | else | |
734 | printk("Error %d while requesting firmware %s \n", | |
735 | rc, fname); | |
8d009a0c | 736 | |
11091a31 DH |
737 | return rc; |
738 | } | |
739 | p = fw->data; | |
740 | endp = p + fw->size; | |
8d009a0c | 741 | |
11091a31 DH |
742 | if (fw->size < sizeof(name) - 1 + 2 + 2) { |
743 | printk("Error: firmware file %s has invalid size!\n", | |
fbe4a29f | 744 | fname); |
11091a31 | 745 | goto corrupt; |
8d009a0c DF |
746 | } |
747 | ||
11091a31 DH |
748 | memcpy(name, p, sizeof(name) - 1); |
749 | name[sizeof(name) - 1] = 0; | |
750 | p += sizeof(name) - 1; | |
751 | ||
752 | priv->firm_version = get_unaligned_le16(p); | |
753 | p += 2; | |
754 | ||
755 | n_array = get_unaligned_le16(p); | |
756 | p += 2; | |
757 | ||
b6cdb5be DH |
758 | dprintk(1, "Loading %d firmware images from %s, type: %s, ver %d.%d\n", |
759 | n_array, fname, name, | |
760 | priv->firm_version >> 8, priv->firm_version & 0xff); | |
11091a31 DH |
761 | |
762 | priv->firm = kzalloc(sizeof(*priv->firm) * n_array, GFP_KERNEL); | |
763 | if (priv->firm == NULL) { | |
764 | printk("Not enough memory to load firmware file.\n"); | |
765 | rc = -ENOMEM; | |
766 | goto err; | |
767 | } | |
768 | priv->firm_size = n_array; | |
769 | ||
770 | n = -1; | |
771 | while (p < endp) { | |
772 | __u32 type, size; | |
773 | v4l2_std_id id; | |
774 | __u16 int_freq = 0; | |
775 | ||
776 | n++; | |
777 | if (n >= n_array) { | |
778 | printk("More firmware images in file than " | |
fbe4a29f | 779 | "were expected!\n"); |
11091a31 DH |
780 | goto corrupt; |
781 | } | |
782 | ||
783 | /* Checks if there's enough bytes to read */ | |
784 | if (endp - p < sizeof(type) + sizeof(id) + sizeof(size)) | |
785 | goto header; | |
786 | ||
787 | type = get_unaligned_le32(p); | |
788 | p += sizeof(type); | |
789 | ||
790 | id = get_unaligned_le64(p); | |
791 | p += sizeof(id); | |
792 | ||
793 | if (type & HAS_IF) { | |
794 | int_freq = get_unaligned_le16(p); | |
795 | p += sizeof(int_freq); | |
796 | if (endp - p < sizeof(size)) | |
797 | goto header; | |
798 | } | |
799 | ||
800 | size = get_unaligned_le32(p); | |
801 | p += sizeof(size); | |
802 | ||
803 | if (!size || size > endp - p) { | |
804 | printk("Firmware type "); | |
11091a31 DH |
805 | printk("(%x), id %llx is corrupted " |
806 | "(size=%d, expected %d)\n", | |
807 | type, (unsigned long long)id, | |
808 | (unsigned)(endp - p), size); | |
809 | goto corrupt; | |
810 | } | |
811 | ||
812 | priv->firm[n].ptr = kzalloc(size, GFP_KERNEL); | |
813 | if (priv->firm[n].ptr == NULL) { | |
814 | printk("Not enough memory to load firmware file.\n"); | |
815 | rc = -ENOMEM; | |
816 | goto err; | |
817 | } | |
d0962382 | 818 | |
11091a31 | 819 | if (debug) { |
d0962382 DH |
820 | printk("Reading firmware type "); |
821 | dump_firm_type_and_int_freq(type, int_freq); | |
11091a31 DH |
822 | printk("(%x), id %llx, size=%d.\n", |
823 | type, (unsigned long long)id, size); | |
824 | } | |
825 | ||
826 | memcpy(priv->firm[n].ptr, p, size); | |
827 | priv->firm[n].type = type; | |
828 | priv->firm[n].id = id; | |
829 | priv->firm[n].size = size; | |
830 | priv->firm[n].int_freq = int_freq; | |
831 | ||
832 | p += size; | |
8d009a0c DF |
833 | } |
834 | ||
11091a31 DH |
835 | if (n + 1 != priv->firm_size) { |
836 | printk("Firmware file is incomplete!\n"); | |
837 | goto corrupt; | |
838 | } | |
839 | ||
840 | goto done; | |
841 | ||
842 | header: | |
843 | printk("Firmware header is incomplete!\n"); | |
844 | corrupt: | |
845 | rc = -EINVAL; | |
846 | printk("Error: firmware file is corrupted!\n"); | |
847 | ||
848 | err: | |
849 | printk("Releasing partially loaded firmware file.\n"); | |
11091a31 DH |
850 | |
851 | done: | |
8d009a0c | 852 | release_firmware(fw); |
11091a31 | 853 | if (rc == 0) |
b6cdb5be | 854 | dprintk(1, "Firmware files loaded.\n"); |
11091a31 DH |
855 | |
856 | return rc; | |
8d009a0c DF |
857 | } |
858 | ||
d0962382 DH |
859 | static int load_scode(struct dvb_frontend *fe, unsigned int type, |
860 | v4l2_std_id *id, __u16 int_freq, int scode) | |
861 | { | |
862 | struct xc4000_priv *priv = fe->tuner_priv; | |
863 | int pos, rc; | |
864 | unsigned char *p; | |
ee4c3cd6 | 865 | u8 scode_buf[13]; |
d0962382 DH |
866 | u8 indirect_mode[5]; |
867 | ||
fe830364 | 868 | dprintk(1, "%s called int_freq=%d\n", __func__, int_freq); |
d0962382 DH |
869 | |
870 | if (!int_freq) { | |
871 | pos = seek_firmware(fe, type, id); | |
872 | if (pos < 0) | |
873 | return pos; | |
874 | } else { | |
875 | for (pos = 0; pos < priv->firm_size; pos++) { | |
876 | if ((priv->firm[pos].int_freq == int_freq) && | |
877 | (priv->firm[pos].type & HAS_IF)) | |
878 | break; | |
879 | } | |
880 | if (pos == priv->firm_size) | |
881 | return -ENOENT; | |
882 | } | |
883 | ||
884 | p = priv->firm[pos].ptr; | |
885 | ||
886 | if (priv->firm[pos].type & HAS_IF) { | |
887 | if (priv->firm[pos].size != 12 * 16 || scode >= 16) | |
888 | return -EINVAL; | |
889 | p += 12 * scode; | |
890 | } else { | |
891 | /* 16 SCODE entries per file; each SCODE entry is 12 bytes and | |
892 | * has a 2-byte size header in the firmware format. */ | |
893 | if (priv->firm[pos].size != 14 * 16 || scode >= 16 || | |
894 | le16_to_cpu(*(__u16 *)(p + 14 * scode)) != 12) | |
895 | return -EINVAL; | |
896 | p += 14 * scode + 2; | |
897 | } | |
898 | ||
899 | tuner_info("Loading SCODE for type="); | |
900 | dump_firm_type_and_int_freq(priv->firm[pos].type, | |
901 | priv->firm[pos].int_freq); | |
902 | printk("(%x), id %016llx.\n", priv->firm[pos].type, | |
903 | (unsigned long long)*id); | |
904 | ||
ee4c3cd6 DH |
905 | scode_buf[0] = 0x00; |
906 | memcpy(&scode_buf[1], p, 12); | |
d0962382 DH |
907 | |
908 | /* Enter direct-mode */ | |
ee4c3cd6 DH |
909 | rc = xc_write_reg(priv, XREG_DIRECTSITTING_MODE, 0); |
910 | if (rc < 0) { | |
911 | printk("failed to put device into direct mode!\n"); | |
d0962382 | 912 | return -EIO; |
ee4c3cd6 | 913 | } |
d0962382 | 914 | |
ee4c3cd6 DH |
915 | rc = xc_send_i2c_data(priv, scode_buf, 13); |
916 | if (rc != XC_RESULT_SUCCESS) { | |
917 | /* Even if the send failed, make sure we set back to indirect | |
918 | mode */ | |
919 | printk("Failed to set scode %d\n", rc); | |
920 | } | |
d0962382 DH |
921 | |
922 | /* Switch back to indirect-mode */ | |
923 | memset(indirect_mode, 0, sizeof(indirect_mode)); | |
924 | indirect_mode[4] = 0x88; | |
ee4c3cd6 DH |
925 | xc_send_i2c_data(priv, indirect_mode, sizeof(indirect_mode)); |
926 | msleep(10); | |
d0962382 DH |
927 | |
928 | return 0; | |
929 | } | |
930 | ||
931 | static int check_firmware(struct dvb_frontend *fe, unsigned int type, | |
932 | v4l2_std_id std, __u16 int_freq) | |
933 | { | |
934 | struct xc4000_priv *priv = fe->tuner_priv; | |
935 | struct firmware_properties new_fw; | |
936 | int rc = 0, is_retry = 0; | |
937 | u16 version, hwmodel; | |
938 | v4l2_std_id std0; | |
e3bb7c60 | 939 | u8 hw_major, hw_minor, fw_major, fw_minor; |
d0962382 DH |
940 | |
941 | dprintk(1, "%s called\n", __func__); | |
942 | ||
943 | if (!priv->firm) { | |
944 | rc = xc4000_fwupload(fe); | |
945 | if (rc < 0) | |
946 | return rc; | |
947 | } | |
948 | ||
949 | #ifdef DJH_DEBUG | |
950 | if (priv->ctrl.mts && !(type & FM)) | |
951 | type |= MTS; | |
952 | #endif | |
953 | ||
954 | retry: | |
955 | new_fw.type = type; | |
956 | new_fw.id = std; | |
957 | new_fw.std_req = std; | |
fbe4a29f | 958 | new_fw.scode_table = SCODE /* | priv->ctrl.scode_table */; |
d0962382 DH |
959 | new_fw.scode_nr = 0; |
960 | new_fw.int_freq = int_freq; | |
961 | ||
962 | dprintk(1, "checking firmware, user requested type="); | |
963 | if (debug) { | |
964 | dump_firm_type(new_fw.type); | |
965 | printk("(%x), id %016llx, ", new_fw.type, | |
966 | (unsigned long long)new_fw.std_req); | |
967 | if (!int_freq) { | |
968 | printk("scode_tbl "); | |
969 | #ifdef DJH_DEBUG | |
970 | dump_firm_type(priv->ctrl.scode_table); | |
971 | printk("(%x), ", priv->ctrl.scode_table); | |
972 | #endif | |
973 | } else | |
974 | printk("int_freq %d, ", new_fw.int_freq); | |
975 | printk("scode_nr %d\n", new_fw.scode_nr); | |
976 | } | |
977 | ||
978 | /* No need to reload base firmware if it matches */ | |
979 | if (((BASE | new_fw.type) & BASE_TYPES) == | |
980 | (priv->cur_fw.type & BASE_TYPES)) { | |
981 | dprintk(1, "BASE firmware not changed.\n"); | |
982 | goto skip_base; | |
983 | } | |
984 | ||
985 | /* Updating BASE - forget about all currently loaded firmware */ | |
986 | memset(&priv->cur_fw, 0, sizeof(priv->cur_fw)); | |
987 | ||
988 | /* Reset is needed before loading firmware */ | |
989 | rc = xc4000_TunerReset(fe); | |
990 | if (rc < 0) | |
991 | goto fail; | |
992 | ||
993 | /* BASE firmwares are all std0 */ | |
994 | std0 = 0; | |
995 | rc = load_firmware(fe, BASE | new_fw.type, &std0); | |
996 | if (rc < 0) { | |
997 | printk("Error %d while loading base firmware\n", rc); | |
998 | goto fail; | |
999 | } | |
1000 | ||
1001 | /* Load INIT1, if needed */ | |
1002 | dprintk(1, "Load init1 firmware, if exists\n"); | |
1003 | ||
1004 | rc = load_firmware(fe, BASE | INIT1 | new_fw.type, &std0); | |
1005 | if (rc == -ENOENT) | |
1006 | rc = load_firmware(fe, (BASE | INIT1 | new_fw.type) & ~F8MHZ, | |
1007 | &std0); | |
1008 | if (rc < 0 && rc != -ENOENT) { | |
1009 | tuner_err("Error %d while loading init1 firmware\n", | |
1010 | rc); | |
1011 | goto fail; | |
1012 | } | |
1013 | ||
1014 | skip_base: | |
1015 | /* | |
1016 | * No need to reload standard specific firmware if base firmware | |
1017 | * was not reloaded and requested video standards have not changed. | |
1018 | */ | |
1019 | if (priv->cur_fw.type == (BASE | new_fw.type) && | |
1020 | priv->cur_fw.std_req == std) { | |
1021 | dprintk(1, "Std-specific firmware already loaded.\n"); | |
1022 | goto skip_std_specific; | |
1023 | } | |
1024 | ||
1025 | /* Reloading std-specific firmware forces a SCODE update */ | |
1026 | priv->cur_fw.scode_table = 0; | |
1027 | ||
ee4c3cd6 | 1028 | /* Load the standard firmware */ |
d0962382 | 1029 | rc = load_firmware(fe, new_fw.type, &new_fw.id); |
d0962382 DH |
1030 | |
1031 | if (rc < 0) | |
1032 | goto fail; | |
1033 | ||
1034 | skip_std_specific: | |
1035 | if (priv->cur_fw.scode_table == new_fw.scode_table && | |
1036 | priv->cur_fw.scode_nr == new_fw.scode_nr) { | |
1037 | dprintk(1, "SCODE firmware already loaded.\n"); | |
1038 | goto check_device; | |
1039 | } | |
1040 | ||
1041 | if (new_fw.type & FM) | |
1042 | goto check_device; | |
1043 | ||
1044 | /* Load SCODE firmware, if exists */ | |
d0962382 DH |
1045 | rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id, |
1046 | new_fw.int_freq, new_fw.scode_nr); | |
ee4c3cd6 DH |
1047 | if (rc != XC_RESULT_SUCCESS) |
1048 | dprintk(1, "load scode failed %d\n", rc); | |
d0962382 DH |
1049 | |
1050 | check_device: | |
1051 | rc = xc4000_readreg(priv, XREG_PRODUCT_ID, &hwmodel); | |
1052 | ||
799ed11a | 1053 | if (xc_get_version(priv, &hw_major, &hw_minor, &fw_major, |
d0962382 DH |
1054 | &fw_minor) != XC_RESULT_SUCCESS) { |
1055 | printk("Unable to read tuner registers.\n"); | |
1056 | goto fail; | |
1057 | } | |
1058 | ||
1059 | dprintk(1, "Device is Xceive %d version %d.%d, " | |
1060 | "firmware version %d.%d\n", | |
1061 | hwmodel, hw_major, hw_minor, fw_major, fw_minor); | |
1062 | ||
1063 | /* Check firmware version against what we downloaded. */ | |
1064 | #ifdef DJH_DEBUG | |
1065 | if (priv->firm_version != ((version & 0xf0) << 4 | (version & 0x0f))) { | |
1066 | printk("Incorrect readback of firmware version %x.\n", | |
1067 | (version & 0xff)); | |
1068 | goto fail; | |
1069 | } | |
1070 | #endif | |
1071 | ||
1072 | /* Check that the tuner hardware model remains consistent over time. */ | |
1073 | if (priv->hwmodel == 0 && hwmodel == 4000) { | |
1074 | priv->hwmodel = hwmodel; | |
1075 | priv->hwvers = version & 0xff00; | |
1076 | } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel || | |
1077 | priv->hwvers != (version & 0xff00)) { | |
1078 | printk("Read invalid device hardware information - tuner " | |
fbe4a29f | 1079 | "hung?\n"); |
d0962382 DH |
1080 | goto fail; |
1081 | } | |
1082 | ||
1083 | memcpy(&priv->cur_fw, &new_fw, sizeof(priv->cur_fw)); | |
1084 | ||
1085 | /* | |
1086 | * By setting BASE in cur_fw.type only after successfully loading all | |
1087 | * firmwares, we can: | |
1088 | * 1. Identify that BASE firmware with type=0 has been loaded; | |
1089 | * 2. Tell whether BASE firmware was just changed the next time through. | |
1090 | */ | |
1091 | priv->cur_fw.type |= BASE; | |
1092 | ||
1093 | return 0; | |
1094 | ||
1095 | fail: | |
1096 | memset(&priv->cur_fw, 0, sizeof(priv->cur_fw)); | |
1097 | if (!is_retry) { | |
1098 | msleep(50); | |
1099 | is_retry = 1; | |
1100 | dprintk(1, "Retrying firmware load\n"); | |
1101 | goto retry; | |
1102 | } | |
1103 | ||
1104 | if (rc == -ENOENT) | |
1105 | rc = -EINVAL; | |
1106 | return rc; | |
1107 | } | |
11091a31 | 1108 | |
8d009a0c DF |
1109 | static void xc_debug_dump(struct xc4000_priv *priv) |
1110 | { | |
fbe4a29f IV |
1111 | u16 adc_envelope; |
1112 | u32 freq_error_hz = 0; | |
1113 | u16 lock_status; | |
1114 | u32 hsync_freq_hz = 0; | |
1115 | u16 frame_lines; | |
1116 | u16 quality; | |
1117 | u8 hw_majorversion = 0, hw_minorversion = 0; | |
1118 | u8 fw_majorversion = 0, fw_minorversion = 0; | |
8d009a0c DF |
1119 | |
1120 | /* Wait for stats to stabilize. | |
1121 | * Frame Lines needs two frame times after initial lock | |
1122 | * before it is valid. | |
1123 | */ | |
1124 | xc_wait(100); | |
1125 | ||
fbe4a29f | 1126 | xc_get_ADC_Envelope(priv, &adc_envelope); |
8d009a0c DF |
1127 | dprintk(1, "*** ADC envelope (0-1023) = %d\n", adc_envelope); |
1128 | ||
1129 | xc_get_frequency_error(priv, &freq_error_hz); | |
1130 | dprintk(1, "*** Frequency error = %d Hz\n", freq_error_hz); | |
1131 | ||
fbe4a29f | 1132 | xc_get_lock_status(priv, &lock_status); |
8d009a0c DF |
1133 | dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %d\n", |
1134 | lock_status); | |
1135 | ||
fbe4a29f IV |
1136 | xc_get_version(priv, &hw_majorversion, &hw_minorversion, |
1137 | &fw_majorversion, &fw_minorversion); | |
1138 | ||
8d009a0c DF |
1139 | dprintk(1, "*** HW: V%02x.%02x, FW: V%02x.%02x\n", |
1140 | hw_majorversion, hw_minorversion, | |
1141 | fw_majorversion, fw_minorversion); | |
1142 | ||
fbe4a29f | 1143 | xc_get_hsync_freq(priv, &hsync_freq_hz); |
8d009a0c DF |
1144 | dprintk(1, "*** Horizontal sync frequency = %d Hz\n", hsync_freq_hz); |
1145 | ||
fbe4a29f | 1146 | xc_get_frame_lines(priv, &frame_lines); |
8d009a0c DF |
1147 | dprintk(1, "*** Frame lines = %d\n", frame_lines); |
1148 | ||
fbe4a29f | 1149 | xc_get_quality(priv, &quality); |
8d009a0c DF |
1150 | dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality); |
1151 | } | |
1152 | ||
1153 | static int xc4000_set_params(struct dvb_frontend *fe, | |
1154 | struct dvb_frontend_parameters *params) | |
1155 | { | |
1156 | struct xc4000_priv *priv = fe->tuner_priv; | |
ed23db32 | 1157 | unsigned int type; |
5614942b | 1158 | int ret = -EREMOTEIO; |
8d009a0c | 1159 | |
8d009a0c DF |
1160 | dprintk(1, "%s() frequency=%d (Hz)\n", __func__, params->frequency); |
1161 | ||
5614942b IV |
1162 | mutex_lock(&priv->lock); |
1163 | ||
8d009a0c DF |
1164 | if (fe->ops.info.type == FE_ATSC) { |
1165 | dprintk(1, "%s() ATSC\n", __func__); | |
1166 | switch (params->u.vsb.modulation) { | |
1167 | case VSB_8: | |
1168 | case VSB_16: | |
1169 | dprintk(1, "%s() VSB modulation\n", __func__); | |
1170 | priv->rf_mode = XC_RF_MODE_AIR; | |
1171 | priv->freq_hz = params->frequency - 1750000; | |
1172 | priv->bandwidth = BANDWIDTH_6_MHZ; | |
ed23db32 DH |
1173 | priv->video_standard = XC4000_DTV6; |
1174 | type = DTV6; | |
8d009a0c DF |
1175 | break; |
1176 | case QAM_64: | |
1177 | case QAM_256: | |
1178 | case QAM_AUTO: | |
1179 | dprintk(1, "%s() QAM modulation\n", __func__); | |
1180 | priv->rf_mode = XC_RF_MODE_CABLE; | |
1181 | priv->freq_hz = params->frequency - 1750000; | |
1182 | priv->bandwidth = BANDWIDTH_6_MHZ; | |
ed23db32 DH |
1183 | priv->video_standard = XC4000_DTV6; |
1184 | type = DTV6; | |
8d009a0c DF |
1185 | break; |
1186 | default: | |
5614942b IV |
1187 | ret = -EINVAL; |
1188 | goto fail; | |
8d009a0c DF |
1189 | } |
1190 | } else if (fe->ops.info.type == FE_OFDM) { | |
1191 | dprintk(1, "%s() OFDM\n", __func__); | |
1192 | switch (params->u.ofdm.bandwidth) { | |
1193 | case BANDWIDTH_6_MHZ: | |
1194 | priv->bandwidth = BANDWIDTH_6_MHZ; | |
ed23db32 | 1195 | priv->video_standard = XC4000_DTV6; |
8d009a0c | 1196 | priv->freq_hz = params->frequency - 1750000; |
ed23db32 | 1197 | type = DTV6; |
8d009a0c DF |
1198 | break; |
1199 | case BANDWIDTH_7_MHZ: | |
f0ef7c88 IV |
1200 | priv->bandwidth = BANDWIDTH_7_MHZ; |
1201 | priv->video_standard = XC4000_DTV7; | |
1202 | priv->freq_hz = params->frequency - 2250000; | |
ed23db32 | 1203 | type = DTV7; |
f0ef7c88 | 1204 | break; |
8d009a0c DF |
1205 | case BANDWIDTH_8_MHZ: |
1206 | priv->bandwidth = BANDWIDTH_8_MHZ; | |
ed23db32 | 1207 | priv->video_standard = XC4000_DTV8; |
8d009a0c | 1208 | priv->freq_hz = params->frequency - 2750000; |
ed23db32 | 1209 | type = DTV8; |
8d009a0c | 1210 | break; |
f0ef7c88 IV |
1211 | case BANDWIDTH_AUTO: |
1212 | if (params->frequency < 400000000) { | |
1213 | priv->bandwidth = BANDWIDTH_7_MHZ; | |
1214 | priv->freq_hz = params->frequency - 2250000; | |
1215 | } else { | |
1216 | priv->bandwidth = BANDWIDTH_8_MHZ; | |
1217 | priv->freq_hz = params->frequency - 2750000; | |
1218 | } | |
1219 | priv->video_standard = XC4000_DTV7_8; | |
1220 | type = DTV78; | |
1221 | break; | |
8d009a0c DF |
1222 | default: |
1223 | printk(KERN_ERR "xc4000 bandwidth not set!\n"); | |
5614942b IV |
1224 | ret = -EINVAL; |
1225 | goto fail; | |
8d009a0c DF |
1226 | } |
1227 | priv->rf_mode = XC_RF_MODE_AIR; | |
1228 | } else { | |
1229 | printk(KERN_ERR "xc4000 modulation type not supported!\n"); | |
5614942b IV |
1230 | ret = -EINVAL; |
1231 | goto fail; | |
8d009a0c DF |
1232 | } |
1233 | ||
1234 | dprintk(1, "%s() frequency=%d (compensated)\n", | |
1235 | __func__, priv->freq_hz); | |
1236 | ||
ed23db32 | 1237 | /* Make sure the correct firmware type is loaded */ |
5614942b IV |
1238 | if (check_firmware(fe, type, 0, priv->if_khz) != XC_RESULT_SUCCESS) |
1239 | goto fail; | |
ed23db32 | 1240 | |
8d009a0c DF |
1241 | ret = xc_SetSignalSource(priv, priv->rf_mode); |
1242 | if (ret != XC_RESULT_SUCCESS) { | |
1243 | printk(KERN_ERR | |
5614942b IV |
1244 | "xc4000: xc_SetSignalSource(%d) failed\n", |
1245 | priv->rf_mode); | |
1246 | goto fail; | |
8d009a0c DF |
1247 | } |
1248 | ||
1249 | ret = xc_SetTVStandard(priv, | |
1250 | XC4000_Standard[priv->video_standard].VideoMode, | |
1251 | XC4000_Standard[priv->video_standard].AudioMode); | |
1252 | if (ret != XC_RESULT_SUCCESS) { | |
1253 | printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n"); | |
5614942b | 1254 | goto fail; |
8d009a0c | 1255 | } |
8d009a0c DF |
1256 | xc_tune_channel(priv, priv->freq_hz, XC_TUNE_DIGITAL); |
1257 | ||
1258 | if (debug) | |
1259 | xc_debug_dump(priv); | |
1260 | ||
5614942b IV |
1261 | ret = 0; |
1262 | ||
1263 | fail: | |
1264 | mutex_unlock(&priv->lock); | |
1265 | ||
1266 | return ret; | |
8d009a0c DF |
1267 | } |
1268 | ||
8d009a0c DF |
1269 | static int xc4000_set_analog_params(struct dvb_frontend *fe, |
1270 | struct analog_parameters *params) | |
1271 | { | |
1272 | struct xc4000_priv *priv = fe->tuner_priv; | |
5614942b | 1273 | int ret = -EREMOTEIO; |
8d009a0c | 1274 | |
8d009a0c DF |
1275 | dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n", |
1276 | __func__, params->frequency); | |
1277 | ||
5614942b IV |
1278 | mutex_lock(&priv->lock); |
1279 | ||
8d009a0c DF |
1280 | /* Fix me: it could be air. */ |
1281 | priv->rf_mode = params->mode; | |
1282 | if (params->mode > XC_RF_MODE_CABLE) | |
1283 | priv->rf_mode = XC_RF_MODE_CABLE; | |
1284 | ||
1285 | /* params->frequency is in units of 62.5khz */ | |
1286 | priv->freq_hz = params->frequency * 62500; | |
1287 | ||
1288 | /* FIX ME: Some video standards may have several possible audio | |
1289 | standards. We simply default to one of them here. | |
1290 | */ | |
1291 | if (params->std & V4L2_STD_MN) { | |
1292 | /* default to BTSC audio standard */ | |
ed23db32 | 1293 | priv->video_standard = XC4000_MN_NTSC_PAL_BTSC; |
8d009a0c DF |
1294 | goto tune_channel; |
1295 | } | |
1296 | ||
1297 | if (params->std & V4L2_STD_PAL_BG) { | |
1298 | /* default to NICAM audio standard */ | |
ed23db32 | 1299 | priv->video_standard = XC4000_BG_PAL_NICAM; |
8d009a0c DF |
1300 | goto tune_channel; |
1301 | } | |
1302 | ||
1303 | if (params->std & V4L2_STD_PAL_I) { | |
1304 | /* default to NICAM audio standard */ | |
ed23db32 | 1305 | priv->video_standard = XC4000_I_PAL_NICAM; |
8d009a0c DF |
1306 | goto tune_channel; |
1307 | } | |
1308 | ||
1309 | if (params->std & V4L2_STD_PAL_DK) { | |
1310 | /* default to NICAM audio standard */ | |
ed23db32 | 1311 | priv->video_standard = XC4000_DK_PAL_NICAM; |
8d009a0c DF |
1312 | goto tune_channel; |
1313 | } | |
1314 | ||
1315 | if (params->std & V4L2_STD_SECAM_DK) { | |
1316 | /* default to A2 DK1 audio standard */ | |
ed23db32 | 1317 | priv->video_standard = XC4000_DK_SECAM_A2DK1; |
8d009a0c DF |
1318 | goto tune_channel; |
1319 | } | |
1320 | ||
1321 | if (params->std & V4L2_STD_SECAM_L) { | |
ed23db32 | 1322 | priv->video_standard = XC4000_L_SECAM_NICAM; |
8d009a0c DF |
1323 | goto tune_channel; |
1324 | } | |
1325 | ||
1326 | if (params->std & V4L2_STD_SECAM_LC) { | |
ed23db32 | 1327 | priv->video_standard = XC4000_LC_SECAM_NICAM; |
8d009a0c DF |
1328 | goto tune_channel; |
1329 | } | |
1330 | ||
1331 | tune_channel: | |
ed23db32 DH |
1332 | |
1333 | /* FIXME - firmware type not being set properly */ | |
5614942b IV |
1334 | if (check_firmware(fe, DTV8, 0, priv->if_khz) != XC_RESULT_SUCCESS) |
1335 | goto fail; | |
ed23db32 | 1336 | |
8d009a0c DF |
1337 | ret = xc_SetSignalSource(priv, priv->rf_mode); |
1338 | if (ret != XC_RESULT_SUCCESS) { | |
1339 | printk(KERN_ERR | |
5614942b IV |
1340 | "xc4000: xc_SetSignalSource(%d) failed\n", |
1341 | priv->rf_mode); | |
1342 | goto fail; | |
8d009a0c DF |
1343 | } |
1344 | ||
1345 | ret = xc_SetTVStandard(priv, | |
1346 | XC4000_Standard[priv->video_standard].VideoMode, | |
1347 | XC4000_Standard[priv->video_standard].AudioMode); | |
1348 | if (ret != XC_RESULT_SUCCESS) { | |
1349 | printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n"); | |
5614942b | 1350 | goto fail; |
8d009a0c DF |
1351 | } |
1352 | ||
1353 | xc_tune_channel(priv, priv->freq_hz, XC_TUNE_ANALOG); | |
1354 | ||
1355 | if (debug) | |
1356 | xc_debug_dump(priv); | |
1357 | ||
5614942b IV |
1358 | ret = 0; |
1359 | ||
1360 | fail: | |
1361 | mutex_unlock(&priv->lock); | |
1362 | ||
1363 | return ret; | |
8d009a0c DF |
1364 | } |
1365 | ||
1366 | static int xc4000_get_frequency(struct dvb_frontend *fe, u32 *freq) | |
1367 | { | |
1368 | struct xc4000_priv *priv = fe->tuner_priv; | |
1369 | dprintk(1, "%s()\n", __func__); | |
1370 | *freq = priv->freq_hz; | |
1371 | return 0; | |
1372 | } | |
1373 | ||
1374 | static int xc4000_get_bandwidth(struct dvb_frontend *fe, u32 *bw) | |
1375 | { | |
1376 | struct xc4000_priv *priv = fe->tuner_priv; | |
1377 | dprintk(1, "%s()\n", __func__); | |
1378 | ||
1379 | *bw = priv->bandwidth; | |
1380 | return 0; | |
1381 | } | |
1382 | ||
1383 | static int xc4000_get_status(struct dvb_frontend *fe, u32 *status) | |
1384 | { | |
1385 | struct xc4000_priv *priv = fe->tuner_priv; | |
fbe4a29f | 1386 | u16 lock_status = 0; |
8d009a0c | 1387 | |
5614942b IV |
1388 | mutex_lock(&priv->lock); |
1389 | ||
8d009a0c DF |
1390 | xc_get_lock_status(priv, &lock_status); |
1391 | ||
5614942b IV |
1392 | mutex_unlock(&priv->lock); |
1393 | ||
8d009a0c DF |
1394 | dprintk(1, "%s() lock_status = 0x%08x\n", __func__, lock_status); |
1395 | ||
1396 | *status = lock_status; | |
1397 | ||
1398 | return 0; | |
1399 | } | |
1400 | ||
8d009a0c DF |
1401 | static int xc4000_sleep(struct dvb_frontend *fe) |
1402 | { | |
ee4c3cd6 DH |
1403 | /* FIXME: djh disable this for now... */ |
1404 | return XC_RESULT_SUCCESS; | |
8d009a0c DF |
1405 | } |
1406 | ||
1407 | static int xc4000_init(struct dvb_frontend *fe) | |
1408 | { | |
1409 | struct xc4000_priv *priv = fe->tuner_priv; | |
5614942b | 1410 | int ret; |
8d009a0c DF |
1411 | dprintk(1, "%s()\n", __func__); |
1412 | ||
5614942b IV |
1413 | mutex_lock(&priv->lock); |
1414 | ret = check_firmware(fe, DTV8, 0, priv->if_khz); | |
1415 | mutex_unlock(&priv->lock); | |
1416 | if (ret != XC_RESULT_SUCCESS) { | |
8d009a0c DF |
1417 | printk(KERN_ERR "xc4000: Unable to initialise tuner\n"); |
1418 | return -EREMOTEIO; | |
1419 | } | |
1420 | ||
1421 | if (debug) | |
1422 | xc_debug_dump(priv); | |
1423 | ||
1424 | return 0; | |
1425 | } | |
1426 | ||
1427 | static int xc4000_release(struct dvb_frontend *fe) | |
1428 | { | |
1429 | struct xc4000_priv *priv = fe->tuner_priv; | |
1430 | ||
1431 | dprintk(1, "%s()\n", __func__); | |
1432 | ||
1433 | mutex_lock(&xc4000_list_mutex); | |
1434 | ||
1435 | if (priv) | |
1436 | hybrid_tuner_release_state(priv); | |
1437 | ||
1438 | mutex_unlock(&xc4000_list_mutex); | |
1439 | ||
1440 | fe->tuner_priv = NULL; | |
1441 | ||
1442 | return 0; | |
1443 | } | |
1444 | ||
1445 | static const struct dvb_tuner_ops xc4000_tuner_ops = { | |
1446 | .info = { | |
1447 | .name = "Xceive XC4000", | |
1448 | .frequency_min = 1000000, | |
1449 | .frequency_max = 1023000000, | |
1450 | .frequency_step = 50000, | |
1451 | }, | |
1452 | ||
1453 | .release = xc4000_release, | |
1454 | .init = xc4000_init, | |
1455 | .sleep = xc4000_sleep, | |
1456 | ||
1457 | .set_params = xc4000_set_params, | |
1458 | .set_analog_params = xc4000_set_analog_params, | |
1459 | .get_frequency = xc4000_get_frequency, | |
1460 | .get_bandwidth = xc4000_get_bandwidth, | |
1461 | .get_status = xc4000_get_status | |
1462 | }; | |
1463 | ||
1464 | struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe, | |
1465 | struct i2c_adapter *i2c, | |
1466 | struct xc4000_config *cfg) | |
1467 | { | |
1468 | struct xc4000_priv *priv = NULL; | |
fbe4a29f IV |
1469 | int instance; |
1470 | u16 id = 0; | |
8d009a0c DF |
1471 | |
1472 | dprintk(1, "%s(%d-%04x)\n", __func__, | |
1473 | i2c ? i2c_adapter_id(i2c) : -1, | |
1474 | cfg ? cfg->i2c_address : -1); | |
1475 | ||
1476 | mutex_lock(&xc4000_list_mutex); | |
1477 | ||
1478 | instance = hybrid_tuner_request_state(struct xc4000_priv, priv, | |
1479 | hybrid_tuner_instance_list, | |
1480 | i2c, cfg->i2c_address, "xc4000"); | |
1481 | switch (instance) { | |
1482 | case 0: | |
1483 | goto fail; | |
1484 | break; | |
1485 | case 1: | |
1486 | /* new tuner instance */ | |
1487 | priv->bandwidth = BANDWIDTH_6_MHZ; | |
5614942b | 1488 | mutex_init(&priv->lock); |
8d009a0c DF |
1489 | fe->tuner_priv = priv; |
1490 | break; | |
1491 | default: | |
1492 | /* existing tuner instance */ | |
1493 | fe->tuner_priv = priv; | |
1494 | break; | |
1495 | } | |
1496 | ||
1497 | if (priv->if_khz == 0) { | |
1498 | /* If the IF hasn't been set yet, use the value provided by | |
1499 | the caller (occurs in hybrid devices where the analog | |
1500 | call to xc4000_attach occurs before the digital side) */ | |
1501 | priv->if_khz = cfg->if_khz; | |
1502 | } | |
1503 | ||
1504 | /* Check if firmware has been loaded. It is possible that another | |
1505 | instance of the driver has loaded the firmware. | |
1506 | */ | |
1507 | ||
1508 | if (xc4000_readreg(priv, XREG_PRODUCT_ID, &id) != XC_RESULT_SUCCESS) | |
1509 | goto fail; | |
1510 | ||
1511 | switch (id) { | |
1512 | case XC_PRODUCT_ID_FW_LOADED: | |
1513 | printk(KERN_INFO | |
1514 | "xc4000: Successfully identified at address 0x%02x\n", | |
1515 | cfg->i2c_address); | |
1516 | printk(KERN_INFO | |
1517 | "xc4000: Firmware has been loaded previously\n"); | |
1518 | break; | |
1519 | case XC_PRODUCT_ID_FW_NOT_LOADED: | |
1520 | printk(KERN_INFO | |
1521 | "xc4000: Successfully identified at address 0x%02x\n", | |
1522 | cfg->i2c_address); | |
1523 | printk(KERN_INFO | |
1524 | "xc4000: Firmware has not been loaded previously\n"); | |
1525 | break; | |
1526 | default: | |
1527 | printk(KERN_ERR | |
1528 | "xc4000: Device not found at addr 0x%02x (0x%x)\n", | |
1529 | cfg->i2c_address, id); | |
1530 | goto fail; | |
1531 | } | |
1532 | ||
1533 | mutex_unlock(&xc4000_list_mutex); | |
1534 | ||
1535 | memcpy(&fe->ops.tuner_ops, &xc4000_tuner_ops, | |
1536 | sizeof(struct dvb_tuner_ops)); | |
1537 | ||
11091a31 DH |
1538 | /* FIXME: For now, load the firmware at startup. We will remove this |
1539 | before the code goes to production... */ | |
5614942b | 1540 | mutex_lock(&priv->lock); |
fe830364 | 1541 | check_firmware(fe, DTV8, 0, priv->if_khz); |
5614942b | 1542 | mutex_unlock(&priv->lock); |
11091a31 | 1543 | |
8d009a0c DF |
1544 | return fe; |
1545 | fail: | |
1546 | mutex_unlock(&xc4000_list_mutex); | |
1547 | ||
1548 | xc4000_release(fe); | |
1549 | return NULL; | |
1550 | } | |
1551 | EXPORT_SYMBOL(xc4000_attach); | |
1552 | ||
1553 | MODULE_AUTHOR("Steven Toth, Davide Ferri"); | |
1554 | MODULE_DESCRIPTION("Xceive xc4000 silicon tuner driver"); | |
1555 | MODULE_LICENSE("GPL"); |