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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[wrt350n-kernel.git] / drivers / media / radio / radio-si470x.c
blobbd3ff71da6e740ef5578cbf492ff801a0f3dca2a
1 /*
2 * drivers/media/radio/radio-si470x.c
3 *
4 * Driver for USB radios for the Silicon Labs Si470x FM Radio Receivers:
5 * - Silicon Labs USB FM Radio Reference Design
6 * - ADS/Tech FM Radio Receiver (formerly Instant FM Music) (RDX-155-EF)
7 *
8 * Copyright (c) 2008 Tobias Lorenz <tobias.lorenz@gmx.net>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 */
24
25
26 /*
27 * History:
28 * 2008-01-12 Tobias Lorenz <tobias.lorenz@gmx.net>
29 * Version 1.0.0
30 * - First working version
31 * 2008-01-13 Tobias Lorenz <tobias.lorenz@gmx.net>
32 * Version 1.0.1
33 * - Improved error handling, every function now returns errno
34 * - Improved multi user access (start/mute/stop)
35 * - Channel doesn't get lost anymore after start/mute/stop
36 * - RDS support added (polling mode via interrupt EP 1)
37 * - marked default module parameters with *value*
38 * - switched from bit structs to bit masks
39 * - header file cleaned and integrated
40 * 2008-01-14 Tobias Lorenz <tobias.lorenz@gmx.net>
41 * Version 1.0.2
42 * - hex values are now lower case
43 * - commented USB ID for ADS/Tech moved on todo list
44 * - blacklisted si470x in hid-quirks.c
45 * - rds buffer handling functions integrated into *_work, *_read
46 * - rds_command in si470x_poll exchanged against simple retval
47 * - check for firmware version 15
48 * - code order and prototypes still remain the same
49 * - spacing and bottom of band codes remain the same
50 * 2008-01-16 Tobias Lorenz <tobias.lorenz@gmx.net>
51 * Version 1.0.3
52 * - code reordered to avoid function prototypes
53 * - switch/case defaults are now more user-friendly
54 * - unified comment style
55 * - applied all checkpatch.pl v1.12 suggestions
56 * except the warning about the too long lines with bit comments
57 * - renamed FMRADIO to RADIO to cut line length (checkpatch.pl)
58 * 2008-01-22 Tobias Lorenz <tobias.lorenz@gmx.net>
59 * Version 1.0.4
60 * - avoid poss. locking when doing copy_to_user which may sleep
61 * - RDS is automatically activated on read now
62 * - code cleaned of unnecessary rds_commands
63 * - USB Vendor/Product ID for ADS/Tech FM Radio Receiver verified
64 * (thanks to Guillaume RAMOUSSE)
65 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
66 =======
67 * 2008-01-27 Tobias Lorenz <tobias.lorenz@gmx.net>
68 * Version 1.0.5
69 * - number of seek_retries changed to tune_timeout
70 * - fixed problem with incomplete tune operations by own buffers
71 * - optimization of variables and printf types
72 * - improved error logging
73 * 2008-01-31 Tobias Lorenz <tobias.lorenz@gmx.net>
74 * Oliver Neukum <oliver@neukum.org>
75 * Version 1.0.6
76 * - fixed coverity checker warnings in *_usb_driver_disconnect
77 * - probe()/open() race by correct ordering in probe()
78 * - DMA coherency rules by separate allocation of all buffers
79 * - use of endianness macros
80 * - abuse of spinlock, replaced by mutex
81 * - racy handling of timer in disconnect,
82 * replaced by delayed_work
83 * - racy interruptible_sleep_on(),
84 * replaced with wait_event_interruptible()
85 * - handle signals in read()
86 * 2008-02-08 Tobias Lorenz <tobias.lorenz@gmx.net>
87 * Oliver Neukum <oliver@neukum.org>
88 * Version 1.0.7
89 * - usb autosuspend support
90 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
91 *
92 * ToDo:
93 * - add seeking support
94 * - add firmware download/update support
95 * - RDS support: interrupt mode, instead of polling
96 * - add LED status output (check if that's not already done in firmware)
97 */
98
99
100 /* driver definitions */
101 #define DRIVER_AUTHOR "Tobias Lorenz <tobias.lorenz@gmx.net>"
102 #define DRIVER_NAME "radio-si470x"
103 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
104 #define DRIVER_VERSION KERNEL_VERSION(1, 0, 4)
105 =======
106 #define DRIVER_KERNEL_VERSION KERNEL_VERSION(1, 0, 6)
107 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
108 #define DRIVER_CARD "Silicon Labs Si470x FM Radio Receiver"
109 #define DRIVER_DESC "USB radio driver for Si470x FM Radio Receivers"
110 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
111 =======
112 #define DRIVER_VERSION "1.0.6"
113 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
114
115
116 /* kernel includes */
117 #include <linux/kernel.h>
118 #include <linux/module.h>
119 #include <linux/init.h>
120 #include <linux/slab.h>
121 #include <linux/input.h>
122 #include <linux/usb.h>
123 #include <linux/hid.h>
124 #include <linux/version.h>
125 #include <linux/videodev2.h>
126 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
127 =======
128 #include <linux/mutex.h>
129 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
130 #include <media/v4l2-common.h>
131 #include <media/rds.h>
132 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
133 =======
134 #include <asm/unaligned.h>
135 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
136
137
138 /* USB Device ID List */
139 static struct usb_device_id si470x_usb_driver_id_table[] = {
140 /* Silicon Labs USB FM Radio Reference Design */
141 { USB_DEVICE_AND_INTERFACE_INFO(0x10c4, 0x818a, USB_CLASS_HID, 0, 0) },
142 /* ADS/Tech FM Radio Receiver (formerly Instant FM Music) */
143 { USB_DEVICE_AND_INTERFACE_INFO(0x06e1, 0xa155, USB_CLASS_HID, 0, 0) },
144 /* Terminating entry */
145 { }
146 };
147 MODULE_DEVICE_TABLE(usb, si470x_usb_driver_id_table);
148
149
150
151 /**************************************************************************
152 * Module Parameters
153 **************************************************************************/
154
155 /* Radio Nr */
156 static int radio_nr = -1;
157 module_param(radio_nr, int, 0);
158 MODULE_PARM_DESC(radio_nr, "Radio Nr");
159
160 /* Spacing (kHz) */
161 /* 0: 200 kHz (USA, Australia) */
162 /* 1: 100 kHz (Europe, Japan) */
163 /* 2: 50 kHz */
164 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
165 static int space = 2;
166 module_param(space, int, 0);
167 =======
168 static unsigned short space = 2;
169 module_param(space, ushort, 0);
170 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
171 MODULE_PARM_DESC(radio_nr, "Spacing: 0=200kHz 1=100kHz *2=50kHz*");
172
173 /* Bottom of Band (MHz) */
174 /* 0: 87.5 - 108 MHz (USA, Europe)*/
175 /* 1: 76 - 108 MHz (Japan wide band) */
176 /* 2: 76 - 90 MHz (Japan) */
177 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
178 static int band = 1;
179 module_param(band, int, 0);
180 =======
181 static unsigned short band = 1;
182 module_param(band, ushort, 0);
183 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
184 MODULE_PARM_DESC(radio_nr, "Band: 0=87.5..108MHz *1=76..108MHz* 2=76..90MHz");
185
186 /* De-emphasis */
187 /* 0: 75 us (USA) */
188 /* 1: 50 us (Europe, Australia, Japan) */
189 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
190 static int de = 1;
191 module_param(de, int, 0);
192 =======
193 static unsigned short de = 1;
194 module_param(de, ushort, 0);
195 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
196 MODULE_PARM_DESC(radio_nr, "De-emphasis: 0=75us *1=50us*");
197
198 /* USB timeout */
199 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
200 static int usb_timeout = 500;
201 module_param(usb_timeout, int, 0);
202 =======
203 static unsigned int usb_timeout = 500;
204 module_param(usb_timeout, uint, 0);
205 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
206 MODULE_PARM_DESC(usb_timeout, "USB timeout (ms): *500*");
207
208 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
209 /* Seek retries */
210 static int seek_retries = 100;
211 module_param(seek_retries, int, 0);
212 MODULE_PARM_DESC(seek_retries, "Seek retries: *100*");
213 =======
214 /* Tune timeout */
215 static unsigned int tune_timeout = 3000;
216 module_param(tune_timeout, uint, 0);
217 MODULE_PARM_DESC(tune_timeout, "Tune timeout: *3000*");
218 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
219
220 /* RDS buffer blocks */
221 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
222 static int rds_buf = 100;
223 module_param(rds_buf, int, 0);
224 =======
225 static unsigned int rds_buf = 100;
226 module_param(rds_buf, uint, 0);
227 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
228 MODULE_PARM_DESC(rds_buf, "RDS buffer entries: *100*");
229
230 /* RDS maximum block errors */
231 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
232 static int max_rds_errors = 1;
233 =======
234 static unsigned short max_rds_errors = 1;
235 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
236 /* 0 means 0 errors requiring correction */
237 /* 1 means 1-2 errors requiring correction (used by original USBRadio.exe) */
238 /* 2 means 3-5 errors requiring correction */
239 /* 3 means 6+ errors or errors in checkword, correction not possible */
240 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
241 module_param(max_rds_errors, int, 0);
242 =======
243 module_param(max_rds_errors, ushort, 0);
244 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
245 MODULE_PARM_DESC(max_rds_errors, "RDS maximum block errors: *1*");
246
247 /* RDS poll frequency */
248 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
249 static int rds_poll_time = 40;
250 =======
251 static unsigned int rds_poll_time = 40;
252 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
253 /* 40 is used by the original USBRadio.exe */
254 /* 50 is used by radio-cadet */
255 /* 75 should be okay */
256 /* 80 is the usual RDS receive interval */
257 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
258 module_param(rds_poll_time, int, 0);
259 =======
260 module_param(rds_poll_time, uint, 0);
261 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
262 MODULE_PARM_DESC(rds_poll_time, "RDS poll time (ms): *40*");
263
264
265
266 /**************************************************************************
267 * Register Definitions
268 **************************************************************************/
269 #define RADIO_REGISTER_SIZE 2 /* 16 register bit width */
270 #define RADIO_REGISTER_NUM 16 /* DEVICEID ... RDSD */
271 #define RDS_REGISTER_NUM 6 /* STATUSRSSI ... RDSD */
272
273 #define DEVICEID 0 /* Device ID */
274 #define DEVICEID_PN 0xf000 /* bits 15..12: Part Number */
275 #define DEVICEID_MFGID 0x0fff /* bits 11..00: Manufacturer ID */
276
277 #define CHIPID 1 /* Chip ID */
278 #define CHIPID_REV 0xfc00 /* bits 15..10: Chip Version */
279 #define CHIPID_DEV 0x0200 /* bits 09..09: Device */
280 #define CHIPID_FIRMWARE 0x01ff /* bits 08..00: Firmware Version */
281
282 #define POWERCFG 2 /* Power Configuration */
283 #define POWERCFG_DSMUTE 0x8000 /* bits 15..15: Softmute Disable */
284 #define POWERCFG_DMUTE 0x4000 /* bits 14..14: Mute Disable */
285 #define POWERCFG_MONO 0x2000 /* bits 13..13: Mono Select */
286 #define POWERCFG_RDSM 0x0800 /* bits 11..11: RDS Mode (Si4701 only) */
287 #define POWERCFG_SKMODE 0x0400 /* bits 10..10: Seek Mode */
288 #define POWERCFG_SEEKUP 0x0200 /* bits 09..09: Seek Direction */
289 #define POWERCFG_SEEK 0x0100 /* bits 08..08: Seek */
290 #define POWERCFG_DISABLE 0x0040 /* bits 06..06: Powerup Disable */
291 #define POWERCFG_ENABLE 0x0001 /* bits 00..00: Powerup Enable */
292
293 #define CHANNEL 3 /* Channel */
294 #define CHANNEL_TUNE 0x8000 /* bits 15..15: Tune */
295 #define CHANNEL_CHAN 0x03ff /* bits 09..00: Channel Select */
296
297 #define SYSCONFIG1 4 /* System Configuration 1 */
298 #define SYSCONFIG1_RDSIEN 0x8000 /* bits 15..15: RDS Interrupt Enable (Si4701 only) */
299 #define SYSCONFIG1_STCIEN 0x4000 /* bits 14..14: Seek/Tune Complete Interrupt Enable */
300 #define SYSCONFIG1_RDS 0x1000 /* bits 12..12: RDS Enable (Si4701 only) */
301 #define SYSCONFIG1_DE 0x0800 /* bits 11..11: De-emphasis (0=75us 1=50us) */
302 #define SYSCONFIG1_AGCD 0x0400 /* bits 10..10: AGC Disable */
303 #define SYSCONFIG1_BLNDADJ 0x00c0 /* bits 07..06: Stereo/Mono Blend Level Adjustment */
304 #define SYSCONFIG1_GPIO3 0x0030 /* bits 05..04: General Purpose I/O 3 */
305 #define SYSCONFIG1_GPIO2 0x000c /* bits 03..02: General Purpose I/O 2 */
306 #define SYSCONFIG1_GPIO1 0x0003 /* bits 01..00: General Purpose I/O 1 */
307
308 #define SYSCONFIG2 5 /* System Configuration 2 */
309 #define SYSCONFIG2_SEEKTH 0xff00 /* bits 15..08: RSSI Seek Threshold */
310 #define SYSCONFIG2_BAND 0x0080 /* bits 07..06: Band Select */
311 #define SYSCONFIG2_SPACE 0x0030 /* bits 05..04: Channel Spacing */
312 #define SYSCONFIG2_VOLUME 0x000f /* bits 03..00: Volume */
313
314 #define SYSCONFIG3 6 /* System Configuration 3 */
315 #define SYSCONFIG3_SMUTER 0xc000 /* bits 15..14: Softmute Attack/Recover Rate */
316 #define SYSCONFIG3_SMUTEA 0x3000 /* bits 13..12: Softmute Attenuation */
317 #define SYSCONFIG3_SKSNR 0x00f0 /* bits 07..04: Seek SNR Threshold */
318 #define SYSCONFIG3_SKCNT 0x000f /* bits 03..00: Seek FM Impulse Detection Threshold */
319
320 #define TEST1 7 /* Test 1 */
321 #define TEST1_AHIZEN 0x4000 /* bits 14..14: Audio High-Z Enable */
322
323 #define TEST2 8 /* Test 2 */
324 /* TEST2 only contains reserved bits */
325
326 #define BOOTCONFIG 9 /* Boot Configuration */
327 /* BOOTCONFIG only contains reserved bits */
328
329 #define STATUSRSSI 10 /* Status RSSI */
330 #define STATUSRSSI_RDSR 0x8000 /* bits 15..15: RDS Ready (Si4701 only) */
331 #define STATUSRSSI_STC 0x4000 /* bits 14..14: Seek/Tune Complete */
332 #define STATUSRSSI_SF 0x2000 /* bits 13..13: Seek Fail/Band Limit */
333 #define STATUSRSSI_AFCRL 0x1000 /* bits 12..12: AFC Rail */
334 #define STATUSRSSI_RDSS 0x0800 /* bits 11..11: RDS Synchronized (Si4701 only) */
335 #define STATUSRSSI_BLERA 0x0600 /* bits 10..09: RDS Block A Errors (Si4701 only) */
336 #define STATUSRSSI_ST 0x0100 /* bits 08..08: Stereo Indicator */
337 #define STATUSRSSI_RSSI 0x00ff /* bits 07..00: RSSI (Received Signal Strength Indicator) */
338
339 #define READCHAN 11 /* Read Channel */
340 #define READCHAN_BLERB 0xc000 /* bits 15..14: RDS Block D Errors (Si4701 only) */
341 #define READCHAN_BLERC 0x3000 /* bits 13..12: RDS Block C Errors (Si4701 only) */
342 #define READCHAN_BLERD 0x0c00 /* bits 11..10: RDS Block B Errors (Si4701 only) */
343 #define READCHAN_READCHAN 0x03ff /* bits 09..00: Read Channel */
344
345 #define RDSA 12 /* RDSA */
346 #define RDSA_RDSA 0xffff /* bits 15..00: RDS Block A Data (Si4701 only) */
347
348 #define RDSB 13 /* RDSB */
349 #define RDSB_RDSB 0xffff /* bits 15..00: RDS Block B Data (Si4701 only) */
350
351 #define RDSC 14 /* RDSC */
352 #define RDSC_RDSC 0xffff /* bits 15..00: RDS Block C Data (Si4701 only) */
353
354 #define RDSD 15 /* RDSD */
355 #define RDSD_RDSD 0xffff /* bits 15..00: RDS Block D Data (Si4701 only) */
356
357
358
359 /**************************************************************************
360 * USB HID Reports
361 **************************************************************************/
362
363 /* Reports 1-16 give direct read/write access to the 16 Si470x registers */
364 /* with the (REPORT_ID - 1) corresponding to the register address across USB */
365 /* endpoint 0 using GET_REPORT and SET_REPORT */
366 #define REGISTER_REPORT_SIZE (RADIO_REGISTER_SIZE + 1)
367 #define REGISTER_REPORT(reg) ((reg) + 1)
368
369 /* Report 17 gives direct read/write access to the entire Si470x register */
370 /* map across endpoint 0 using GET_REPORT and SET_REPORT */
371 #define ENTIRE_REPORT_SIZE (RADIO_REGISTER_NUM * RADIO_REGISTER_SIZE + 1)
372 #define ENTIRE_REPORT 17
373
374 /* Report 18 is used to send the lowest 6 Si470x registers up the HID */
375 /* interrupt endpoint 1 to Windows every 20 milliseconds for status */
376 #define RDS_REPORT_SIZE (RDS_REGISTER_NUM * RADIO_REGISTER_SIZE + 1)
377 #define RDS_REPORT 18
378
379 /* Report 19: LED state */
380 #define LED_REPORT_SIZE 3
381 #define LED_REPORT 19
382
383 /* Report 19: stream */
384 #define STREAM_REPORT_SIZE 3
385 #define STREAM_REPORT 19
386
387 /* Report 20: scratch */
388 #define SCRATCH_PAGE_SIZE 63
389 #define SCRATCH_REPORT_SIZE (SCRATCH_PAGE_SIZE + 1)
390 #define SCRATCH_REPORT 20
391
392 /* Reports 19-22: flash upgrade of the C8051F321 */
393 #define WRITE_REPORT 19
394 #define FLASH_REPORT 20
395 #define CRC_REPORT 21
396 #define RESPONSE_REPORT 22
397
398 /* Report 23: currently unused, but can accept 60 byte reports on the HID */
399 /* interrupt out endpoint 2 every 1 millisecond */
400 #define UNUSED_REPORT 23
401
402
403
404 /**************************************************************************
405 * Software/Hardware Versions
406 **************************************************************************/
407 #define RADIO_SW_VERSION_NOT_BOOTLOADABLE 6
408 #define RADIO_SW_VERSION 7
409 #define RADIO_SW_VERSION_CURRENT 15
410 #define RADIO_HW_VERSION 1
411
412 #define SCRATCH_PAGE_SW_VERSION 1
413 #define SCRATCH_PAGE_HW_VERSION 2
414
415
416
417 /**************************************************************************
418 * LED State Definitions
419 **************************************************************************/
420 #define LED_COMMAND 0x35
421
422 #define NO_CHANGE_LED 0x00
423 #define ALL_COLOR_LED 0x01 /* streaming state */
424 #define BLINK_GREEN_LED 0x02 /* connect state */
425 #define BLINK_RED_LED 0x04
426 #define BLINK_ORANGE_LED 0x10 /* disconnect state */
427 #define SOLID_GREEN_LED 0x20 /* tuning/seeking state */
428 #define SOLID_RED_LED 0x40 /* bootload state */
429 #define SOLID_ORANGE_LED 0x80
430
431
432
433 /**************************************************************************
434 * Stream State Definitions
435 **************************************************************************/
436 #define STREAM_COMMAND 0x36
437 #define STREAM_VIDPID 0x00
438 #define STREAM_AUDIO 0xff
439
440
441
442 /**************************************************************************
443 * Bootloader / Flash Commands
444 **************************************************************************/
445
446 /* unique id sent to bootloader and required to put into a bootload state */
447 #define UNIQUE_BL_ID 0x34
448
449 /* mask for the flash data */
450 #define FLASH_DATA_MASK 0x55
451
452 /* bootloader commands */
453 #define GET_SW_VERSION_COMMAND 0x00
454 #define SET_PAGE_COMMAND 0x01
455 #define ERASE_PAGE_COMMAND 0x02
456 #define WRITE_PAGE_COMMAND 0x03
457 #define CRC_ON_PAGE_COMMAND 0x04
458 #define READ_FLASH_BYTE_COMMAND 0x05
459 #define RESET_DEVICE_COMMAND 0x06
460 #define GET_HW_VERSION_COMMAND 0x07
461 #define BLANK 0xff
462
463 /* bootloader command responses */
464 #define COMMAND_OK 0x01
465 #define COMMAND_FAILED 0x02
466 #define COMMAND_PENDING 0x03
467
468 /* buffer sizes */
469 #define COMMAND_BUFFER_SIZE 4
470 #define RESPONSE_BUFFER_SIZE 2
471 #define FLASH_BUFFER_SIZE 64
472 #define CRC_BUFFER_SIZE 3
473
474
475
476 /**************************************************************************
477 * General Driver Definitions
478 **************************************************************************/
479
480 /*
481 * si470x_device - private data
482 */
483 struct si470x_device {
484 /* reference to USB and video device */
485 struct usb_device *usbdev;
486 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
487 =======
488 struct usb_interface *intf;
489 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
490 struct video_device *videodev;
491
492 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
493 /* are these really necessary ? */
494 int users;
495
496 /* report buffer (maximum 64 bytes) */
497 unsigned char buf[64];
498 =======
499 /* driver management */
500 unsigned int users;
501 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
502
503 /* Silabs internal registers (0..15) */
504 unsigned short registers[RADIO_REGISTER_NUM];
505
506 /* RDS receive buffer */
507 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
508 struct work_struct work;
509 =======
510 struct delayed_work work;
511 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
512 wait_queue_head_t read_queue;
513 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
514 struct timer_list timer;
515 spinlock_t lock; /* buffer locking */
516 =======
517 struct mutex lock; /* buffer locking */
518 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
519 unsigned char *buffer; /* size is always multiple of three */
520 unsigned int buf_size;
521 unsigned int rd_index;
522 unsigned int wr_index;
523 };
524
525
526 /*
527 * The frequency is set in units of 62.5 Hz when using V4L2_TUNER_CAP_LOW,
528 * 62.5 kHz otherwise.
529 * The tuner is able to have a channel spacing of 50, 100 or 200 kHz.
530 * tuner->capability is therefore set to V4L2_TUNER_CAP_LOW
531 * The FREQ_MUL is then: 1 MHz / 62.5 Hz = 16000
532 */
533 #define FREQ_MUL (1000000 / 62.5)
534
535
536
537 /**************************************************************************
538 * General Driver Functions
539 **************************************************************************/
540
541 /*
542 * si470x_get_report - receive a HID report
543 */
544 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
545 static int si470x_get_report(struct si470x_device *radio, int size)
546 =======
547 static int si470x_get_report(struct si470x_device *radio, void *buf, int size)
548 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
549 {
550 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
551 return usb_control_msg(radio->usbdev,
552 =======
553 unsigned char *report = (unsigned char *) buf;
554 int retval;
555
556 retval = usb_control_msg(radio->usbdev,
557 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
558 usb_rcvctrlpipe(radio->usbdev, 0),
559 HID_REQ_GET_REPORT,
560 USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
561 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
562 radio->buf[0], 2,
563 radio->buf, size, usb_timeout);
564 =======
565 report[0], 2,
566 buf, size, usb_timeout);
567 if (retval < 0)
568 printk(KERN_WARNING DRIVER_NAME
569 ": si470x_get_report: usb_control_msg returned %d\n",
570 retval);
571
572 return retval;
573 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
574 }
575
576
577 /*
578 * si470x_set_report - send a HID report
579 */
580 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
581 static int si470x_set_report(struct si470x_device *radio, int size)
582 =======
583 static int si470x_set_report(struct si470x_device *radio, void *buf, int size)
584 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
585 {
586 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
587 return usb_control_msg(radio->usbdev,
588 =======
589 unsigned char *report = (unsigned char *) buf;
590 int retval;
591
592 retval = usb_control_msg(radio->usbdev,
593 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
594 usb_sndctrlpipe(radio->usbdev, 0),
595 HID_REQ_SET_REPORT,
596 USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
597 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
598 radio->buf[0], 2,
599 radio->buf, size, usb_timeout);
600 =======
601 report[0], 2,
602 buf, size, usb_timeout);
603 if (retval < 0)
604 printk(KERN_WARNING DRIVER_NAME
605 ": si470x_set_report: usb_control_msg returned %d\n",
606 retval);
607
608 return retval;
609 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
610 }
611
612
613 /*
614 * si470x_get_register - read register
615 */
616 static int si470x_get_register(struct si470x_device *radio, int regnr)
617 {
618 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
619 =======
620 unsigned char buf[REGISTER_REPORT_SIZE];
621 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
622 int retval;
623
624 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
625 radio->buf[0] = REGISTER_REPORT(regnr);
626 =======
627 buf[0] = REGISTER_REPORT(regnr);
628
629 retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
630 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
631
632 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
633 retval = si470x_get_report(radio, REGISTER_REPORT_SIZE);
634 =======
635 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
636 if (retval >= 0)
637 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
638 radio->registers[regnr] = (radio->buf[1] << 8) | radio->buf[2];
639 =======
640 radio->registers[regnr] = be16_to_cpu(get_unaligned(
641 (unsigned short *) &buf[1]));
642 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
643
644 return (retval < 0) ? -EINVAL : 0;
645 }
646
647
648 /*
649 * si470x_set_register - write register
650 */
651 static int si470x_set_register(struct si470x_device *radio, int regnr)
652 {
653 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
654 =======
655 unsigned char buf[REGISTER_REPORT_SIZE];
656 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
657 int retval;
658
659 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
660 radio->buf[0] = REGISTER_REPORT(regnr);
661 radio->buf[1] = (radio->registers[regnr] & 0xff00) >> 8;
662 radio->buf[2] = (radio->registers[regnr] & 0x00ff);
663 =======
664 buf[0] = REGISTER_REPORT(regnr);
665 put_unaligned(cpu_to_be16(radio->registers[regnr]),
666 (unsigned short *) &buf[1]);
667 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
668
669 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
670 retval = si470x_set_report(radio, REGISTER_REPORT_SIZE);
671 =======
672 retval = si470x_set_report(radio, (void *) &buf, sizeof(buf));
673 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
674
675 return (retval < 0) ? -EINVAL : 0;
676 }
677
678
679 /*
680 * si470x_get_all_registers - read entire registers
681 */
682 static int si470x_get_all_registers(struct si470x_device *radio)
683 {
684 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
685 =======
686 unsigned char buf[ENTIRE_REPORT_SIZE];
687 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
688 int retval;
689 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
690 int regnr;
691 =======
692 unsigned char regnr;
693 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
694
695 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
696 radio->buf[0] = ENTIRE_REPORT;
697 =======
698 buf[0] = ENTIRE_REPORT;
699 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
700
701 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
702 retval = si470x_get_report(radio, ENTIRE_REPORT_SIZE);
703 =======
704 retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
705 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
706
707 if (retval >= 0)
708 for (regnr = 0; regnr < RADIO_REGISTER_NUM; regnr++)
709 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
710 radio->registers[regnr] =
711 (radio->buf[regnr * RADIO_REGISTER_SIZE + 1] << 8) |
712 radio->buf[regnr * RADIO_REGISTER_SIZE + 2];
713 =======
714 radio->registers[regnr] = be16_to_cpu(get_unaligned(
715 (unsigned short *)
716 &buf[regnr * RADIO_REGISTER_SIZE + 1]));
717 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
718
719 return (retval < 0) ? -EINVAL : 0;
720 }
721
722
723 /*
724 * si470x_get_rds_registers - read rds registers
725 */
726 static int si470x_get_rds_registers(struct si470x_device *radio)
727 {
728 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
729 =======
730 unsigned char buf[RDS_REPORT_SIZE];
731 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
732 int retval;
733 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
734 int regnr;
735 =======
736 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
737 int size;
738 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
739 =======
740 unsigned char regnr;
741 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
742
743 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
744 radio->buf[0] = RDS_REPORT;
745 =======
746 buf[0] = RDS_REPORT;
747 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
748
749 retval = usb_interrupt_msg(radio->usbdev,
750 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
751 usb_rcvctrlpipe(radio->usbdev, 1),
752 radio->buf, RDS_REPORT_SIZE, &size, usb_timeout);
753 =======
754 usb_rcvintpipe(radio->usbdev, 1),
755 (void *) &buf, sizeof(buf), &size, usb_timeout);
756 if (size != sizeof(buf))
757 printk(KERN_WARNING DRIVER_NAME ": si470x_get_rds_register: "
758 "return size differs: %d != %zu\n", size, sizeof(buf));
759 if (retval < 0)
760 printk(KERN_WARNING DRIVER_NAME ": si470x_get_rds_registers: "
761 "usb_interrupt_msg returned %d\n", retval);
762 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
763
764 if (retval >= 0)
765 for (regnr = 0; regnr < RDS_REGISTER_NUM; regnr++)
766 radio->registers[STATUSRSSI + regnr] =
767 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
768 (radio->buf[regnr * RADIO_REGISTER_SIZE + 1] << 8) |
769 radio->buf[regnr * RADIO_REGISTER_SIZE + 2];
770 =======
771 be16_to_cpu(get_unaligned((unsigned short *)
772 &buf[regnr * RADIO_REGISTER_SIZE + 1]));
773 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
774
775 return (retval < 0) ? -EINVAL : 0;
776 }
777
778
779 /*
780 * si470x_set_chan - set the channel
781 */
782 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
783 static int si470x_set_chan(struct si470x_device *radio, int chan)
784 =======
785 static int si470x_set_chan(struct si470x_device *radio, unsigned short chan)
786 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
787 {
788 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
789 int retval, i;
790 =======
791 int retval;
792 unsigned long timeout;
793 bool timed_out = 0;
794 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
795
796 /* start tuning */
797 radio->registers[CHANNEL] &= ~CHANNEL_CHAN;
798 radio->registers[CHANNEL] |= CHANNEL_TUNE | chan;
799 retval = si470x_set_register(radio, CHANNEL);
800 if (retval < 0)
801 return retval;
802
803 /* wait till seek operation has completed */
804 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
805 i = 0;
806 =======
807 timeout = jiffies + msecs_to_jiffies(tune_timeout);
808 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
809 do {
810 retval = si470x_get_register(radio, STATUSRSSI);
811 if (retval < 0)
812 return retval;
813 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
814 } while ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) &&
815 (++i < seek_retries));
816 if (i >= seek_retries)
817 =======
818 timed_out = time_after(jiffies, timeout);
819 } while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) &&
820 (!timed_out));
821 if (timed_out)
822 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
823 printk(KERN_WARNING DRIVER_NAME
824 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
825 ": seek does not finish after %d tries\n", i);
826 =======
827 ": seek does not finish after %u ms\n", tune_timeout);
828 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
829
830 /* stop tuning */
831 radio->registers[CHANNEL] &= ~CHANNEL_TUNE;
832 return si470x_set_register(radio, CHANNEL);
833 }
834
835
836 /*
837 * si470x_get_freq - get the frequency
838 */
839 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
840 static int si470x_get_freq(struct si470x_device *radio)
841 =======
842 static unsigned int si470x_get_freq(struct si470x_device *radio)
843 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
844 {
845 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
846 int spacing, band_bottom, chan, freq;
847 =======
848 unsigned int spacing, band_bottom, freq;
849 unsigned short chan;
850 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
851 int retval;
852
853 /* Spacing (kHz) */
854 switch (space) {
855 /* 0: 200 kHz (USA, Australia) */
856 case 0 : spacing = 0.200 * FREQ_MUL; break;
857 /* 1: 100 kHz (Europe, Japan) */
858 case 1 : spacing = 0.100 * FREQ_MUL; break;
859 /* 2: 50 kHz */
860 default: spacing = 0.050 * FREQ_MUL; break;
861 };
862
863 /* Bottom of Band (MHz) */
864 switch (band) {
865 /* 0: 87.5 - 108 MHz (USA, Europe) */
866 case 0 : band_bottom = 87.5 * FREQ_MUL; break;
867 /* 1: 76 - 108 MHz (Japan wide band) */
868 default: band_bottom = 76 * FREQ_MUL; break;
869 /* 2: 76 - 90 MHz (Japan) */
870 case 2 : band_bottom = 76 * FREQ_MUL; break;
871 };
872
873 /* read channel */
874 retval = si470x_get_register(radio, READCHAN);
875 if (retval < 0)
876 return retval;
877 chan = radio->registers[READCHAN] & READCHAN_READCHAN;
878
879 /* Frequency (MHz) = Spacing (kHz) x Channel + Bottom of Band (MHz) */
880 freq = chan * spacing + band_bottom;
881
882 return freq;
883 }
884
885
886 /*
887 * si470x_set_freq - set the frequency
888 */
889 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
890 static int si470x_set_freq(struct si470x_device *radio, int freq)
891 =======
892 static int si470x_set_freq(struct si470x_device *radio, unsigned int freq)
893 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
894 {
895 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
896 int spacing, band_bottom, chan;
897 =======
898 unsigned int spacing, band_bottom;
899 unsigned short chan;
900 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
901
902 /* Spacing (kHz) */
903 switch (space) {
904 /* 0: 200 kHz (USA, Australia) */
905 case 0 : spacing = 0.200 * FREQ_MUL; break;
906 /* 1: 100 kHz (Europe, Japan) */
907 case 1 : spacing = 0.100 * FREQ_MUL; break;
908 /* 2: 50 kHz */
909 default: spacing = 0.050 * FREQ_MUL; break;
910 };
911
912 /* Bottom of Band (MHz) */
913 switch (band) {
914 /* 0: 87.5 - 108 MHz (USA, Europe) */
915 case 0 : band_bottom = 87.5 * FREQ_MUL; break;
916 /* 1: 76 - 108 MHz (Japan wide band) */
917 default: band_bottom = 76 * FREQ_MUL; break;
918 /* 2: 76 - 90 MHz (Japan) */
919 case 2 : band_bottom = 76 * FREQ_MUL; break;
920 };
921
922 /* Chan = [ Freq (Mhz) - Bottom of Band (MHz) ] / Spacing (kHz) */
923 chan = (freq - band_bottom) / spacing;
924
925 return si470x_set_chan(radio, chan);
926 }
927
928
929 /*
930 * si470x_start - switch on radio
931 */
932 static int si470x_start(struct si470x_device *radio)
933 {
934 int retval;
935
936 /* powercfg */
937 radio->registers[POWERCFG] =
938 POWERCFG_DMUTE | POWERCFG_ENABLE | POWERCFG_RDSM;
939 retval = si470x_set_register(radio, POWERCFG);
940 if (retval < 0)
941 return retval;
942
943 /* sysconfig 1 */
944 radio->registers[SYSCONFIG1] = SYSCONFIG1_DE;
945 retval = si470x_set_register(radio, SYSCONFIG1);
946 if (retval < 0)
947 return retval;
948
949 /* sysconfig 2 */
950 radio->registers[SYSCONFIG2] =
951 (0x3f << 8) | /* SEEKTH */
952 (band << 6) | /* BAND */
953 (space << 4) | /* SPACE */
954 15; /* VOLUME (max) */
955 retval = si470x_set_register(radio, SYSCONFIG2);
956 if (retval < 0)
957 return retval;
958
959 /* reset last channel */
960 return si470x_set_chan(radio,
961 radio->registers[CHANNEL] & CHANNEL_CHAN);
962 }
963
964
965 /*
966 * si470x_stop - switch off radio
967 */
968 static int si470x_stop(struct si470x_device *radio)
969 {
970 int retval;
971
972 /* sysconfig 1 */
973 radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
974 retval = si470x_set_register(radio, SYSCONFIG1);
975 if (retval < 0)
976 return retval;
977
978 /* powercfg */
979 radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
980 /* POWERCFG_ENABLE has to automatically go low */
981 radio->registers[POWERCFG] |= POWERCFG_ENABLE | POWERCFG_DISABLE;
982 return si470x_set_register(radio, POWERCFG);
983 }
984
985
986 /*
987 * si470x_rds_on - switch on rds reception
988 */
989 static int si470x_rds_on(struct si470x_device *radio)
990 {
991 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
992 =======
993 int retval;
994
995 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
996 /* sysconfig 1 */
997 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
998 =======
999 mutex_lock(&radio->lock);
1000 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1001 radio->registers[SYSCONFIG1] |= SYSCONFIG1_RDS;
1002 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1003 return si470x_set_register(radio, SYSCONFIG1);
1004 =======
1005 retval = si470x_set_register(radio, SYSCONFIG1);
1006 if (retval < 0)
1007 radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
1008 mutex_unlock(&radio->lock);
1009
1010 return retval;
1011 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1012 }
1013
1014
1015
1016 /**************************************************************************
1017 * RDS Driver Functions
1018 **************************************************************************/
1019
1020 /*
1021 * si470x_rds - rds processing function
1022 */
1023 static void si470x_rds(struct si470x_device *radio)
1024 {
1025 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1026 unsigned char tmpbuf[3];
1027 =======
1028 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1029 unsigned char blocknum;
1030 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1031 unsigned char bler; /* rds block errors */
1032 =======
1033 unsigned short bler; /* rds block errors */
1034 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1035 unsigned short rds;
1036 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1037 unsigned int i;
1038 =======
1039 unsigned char tmpbuf[3];
1040 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1041
1042 /* get rds blocks */
1043 if (si470x_get_rds_registers(radio) < 0)
1044 return;
1045 if ((radio->registers[STATUSRSSI] & STATUSRSSI_RDSR) == 0) {
1046 /* No RDS group ready */
1047 return;
1048 }
1049 if ((radio->registers[STATUSRSSI] & STATUSRSSI_RDSS) == 0) {
1050 /* RDS decoder not synchronized */
1051 return;
1052 }
1053
1054 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1055 /* copy four RDS blocks to internal buffer */
1056 if (spin_trylock(&radio->lock)) {
1057 /* process each rds block */
1058 for (blocknum = 0; blocknum < 4; blocknum++) {
1059 switch (blocknum) {
1060 default:
1061 bler = (radio->registers[STATUSRSSI] &
1062 STATUSRSSI_BLERA) >> 9;
1063 rds = radio->registers[RDSA];
1064 break;
1065 case 1:
1066 bler = (radio->registers[READCHAN] &
1067 READCHAN_BLERB) >> 14;
1068 rds = radio->registers[RDSB];
1069 break;
1070 case 2:
1071 bler = (radio->registers[READCHAN] &
1072 READCHAN_BLERC) >> 12;
1073 rds = radio->registers[RDSC];
1074 break;
1075 case 3:
1076 bler = (radio->registers[READCHAN] &
1077 READCHAN_BLERD) >> 10;
1078 rds = radio->registers[RDSD];
1079 break;
1080 };
1081
1082 /* Fill the V4L2 RDS buffer */
1083 tmpbuf[0] = rds & 0x00ff; /* LSB */
1084 tmpbuf[1] = (rds & 0xff00) >> 8;/* MSB */
1085 tmpbuf[2] = blocknum; /* offset name */
1086 tmpbuf[2] |= blocknum << 3; /* received offset */
1087 if (bler > max_rds_errors)
1088 tmpbuf[2] |= 0x80; /* uncorrectable errors */
1089 else if (bler > 0)
1090 tmpbuf[2] |= 0x40; /* corrected error(s) */
1091
1092 /* copy RDS block to internal buffer */
1093 for (i = 0; i < 3; i++) {
1094 radio->buffer[radio->wr_index] = tmpbuf[i];
1095 radio->wr_index++;
1096 }
1097
1098 /* wrap write pointer */
1099 if (radio->wr_index >= radio->buf_size)
1100 radio->wr_index = 0;
1101
1102 /* check for overflow */
1103 if (radio->wr_index == radio->rd_index) {
1104 /* increment and wrap read pointer */
1105 radio->rd_index += 3;
1106 if (radio->rd_index >= radio->buf_size)
1107 radio->rd_index = 0;
1108 }
1109 =======
1110 /* copy all four RDS blocks to internal buffer */
1111 mutex_lock(&radio->lock);
1112 for (blocknum = 0; blocknum < 4; blocknum++) {
1113 switch (blocknum) {
1114 default:
1115 bler = (radio->registers[STATUSRSSI] &
1116 STATUSRSSI_BLERA) >> 9;
1117 rds = radio->registers[RDSA];
1118 break;
1119 case 1:
1120 bler = (radio->registers[READCHAN] &
1121 READCHAN_BLERB) >> 14;
1122 rds = radio->registers[RDSB];
1123 break;
1124 case 2:
1125 bler = (radio->registers[READCHAN] &
1126 READCHAN_BLERC) >> 12;
1127 rds = radio->registers[RDSC];
1128 break;
1129 case 3:
1130 bler = (radio->registers[READCHAN] &
1131 READCHAN_BLERD) >> 10;
1132 rds = radio->registers[RDSD];
1133 break;
1134 };
1135
1136 /* Fill the V4L2 RDS buffer */
1137 put_unaligned(cpu_to_le16(rds), (unsigned short *) &tmpbuf);
1138 tmpbuf[2] = blocknum; /* offset name */
1139 tmpbuf[2] |= blocknum << 3; /* received offset */
1140 if (bler > max_rds_errors)
1141 tmpbuf[2] |= 0x80; /* uncorrectable errors */
1142 else if (bler > 0)
1143 tmpbuf[2] |= 0x40; /* corrected error(s) */
1144
1145 /* copy RDS block to internal buffer */
1146 memcpy(&radio->buffer[radio->wr_index], &tmpbuf, 3);
1147 radio->wr_index += 3;
1148
1149 /* wrap write pointer */
1150 if (radio->wr_index >= radio->buf_size)
1151 radio->wr_index = 0;
1152
1153 /* check for overflow */
1154 if (radio->wr_index == radio->rd_index) {
1155 /* increment and wrap read pointer */
1156 radio->rd_index += 3;
1157 if (radio->rd_index >= radio->buf_size)
1158 radio->rd_index = 0;
1159 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1160 }
1161 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1162 spin_unlock(&radio->lock);
1163 =======
1164 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1165 }
1166 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1167 =======
1168 mutex_unlock(&radio->lock);
1169 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1170
1171 /* wake up read queue */
1172 if (radio->wr_index != radio->rd_index)
1173 wake_up_interruptible(&radio->read_queue);
1174 }
1175
1176
1177 /*
1178 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1179 * si470x_timer - rds timer function
1180 */
1181 static void si470x_timer(unsigned long data)
1182 {
1183 struct si470x_device *radio = (struct si470x_device *) data;
1184
1185 schedule_work(&radio->work);
1186 }
1187
1188
1189 /*
1190 =======
1191 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1192 * si470x_work - rds work function
1193 */
1194 static void si470x_work(struct work_struct *work)
1195 {
1196 struct si470x_device *radio = container_of(work, struct si470x_device,
1197 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1198 work);
1199 =======
1200 work.work);
1201 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1202
1203 if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
1204 return;
1205
1206 si470x_rds(radio);
1207 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1208 mod_timer(&radio->timer, jiffies + msecs_to_jiffies(rds_poll_time));
1209 =======
1210 schedule_delayed_work(&radio->work, msecs_to_jiffies(rds_poll_time));
1211 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1212 }
1213
1214
1215
1216 /**************************************************************************
1217 * File Operations Interface
1218 **************************************************************************/
1219
1220 /*
1221 * si470x_fops_read - read RDS data
1222 */
1223 static ssize_t si470x_fops_read(struct file *file, char __user *buf,
1224 size_t count, loff_t *ppos)
1225 {
1226 struct si470x_device *radio = video_get_drvdata(video_devdata(file));
1227 int retval = 0;
1228 unsigned int block_count = 0;
1229
1230 /* switch on rds reception */
1231 if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0) {
1232 si470x_rds_on(radio);
1233 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1234 schedule_work(&radio->work);
1235 =======
1236 schedule_delayed_work(&radio->work,
1237 msecs_to_jiffies(rds_poll_time));
1238 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1239 }
1240
1241 /* block if no new data available */
1242 while (radio->wr_index == radio->rd_index) {
1243 if (file->f_flags & O_NONBLOCK)
1244 return -EWOULDBLOCK;
1245 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1246 interruptible_sleep_on(&radio->read_queue);
1247 =======
1248 if (wait_event_interruptible(radio->read_queue,
1249 radio->wr_index != radio->rd_index) < 0)
1250 return -EINTR;
1251 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1252 }
1253
1254 /* calculate block count from byte count */
1255 count /= 3;
1256
1257 /* copy RDS block out of internal buffer and to user buffer */
1258 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1259 if (spin_trylock(&radio->lock)) {
1260 while (block_count < count) {
1261 if (radio->rd_index == radio->wr_index)
1262 break;
1263
1264 /* always transfer rds complete blocks */
1265 if (copy_to_user(buf,
1266 &radio->buffer[radio->rd_index], 3))
1267 /* retval = -EFAULT; */
1268 break;
1269
1270 /* increment and wrap read pointer */
1271 radio->rd_index += 3;
1272 if (radio->rd_index >= radio->buf_size)
1273 radio->rd_index = 0;
1274
1275 /* increment counters */
1276 block_count++;
1277 buf += 3;
1278 retval += 3;
1279 }
1280
1281 spin_unlock(&radio->lock);
1282 =======
1283 mutex_lock(&radio->lock);
1284 while (block_count < count) {
1285 if (radio->rd_index == radio->wr_index)
1286 break;
1287
1288 /* always transfer rds complete blocks */
1289 if (copy_to_user(buf, &radio->buffer[radio->rd_index], 3))
1290 /* retval = -EFAULT; */
1291 break;
1292
1293 /* increment and wrap read pointer */
1294 radio->rd_index += 3;
1295 if (radio->rd_index >= radio->buf_size)
1296 radio->rd_index = 0;
1297
1298 /* increment counters */
1299 block_count++;
1300 buf += 3;
1301 retval += 3;
1302 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1303 }
1304 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1305 =======
1306 mutex_unlock(&radio->lock);
1307 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1308
1309 return retval;
1310 }
1311
1312
1313 /*
1314 * si470x_fops_poll - poll RDS data
1315 */
1316 static unsigned int si470x_fops_poll(struct file *file,
1317 struct poll_table_struct *pts)
1318 {
1319 struct si470x_device *radio = video_get_drvdata(video_devdata(file));
1320
1321 /* switch on rds reception */
1322 if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0) {
1323 si470x_rds_on(radio);
1324 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1325 schedule_work(&radio->work);
1326 =======
1327 schedule_delayed_work(&radio->work,
1328 msecs_to_jiffies(rds_poll_time));
1329 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1330 }
1331
1332 poll_wait(file, &radio->read_queue, pts);
1333
1334 if (radio->rd_index != radio->wr_index)
1335 return POLLIN | POLLRDNORM;
1336
1337 return 0;
1338 }
1339
1340
1341 /*
1342 * si470x_fops_open - file open
1343 */
1344 static int si470x_fops_open(struct inode *inode, struct file *file)
1345 {
1346 struct si470x_device *radio = video_get_drvdata(video_devdata(file));
1347 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1348 =======
1349 int retval;
1350 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1351
1352 radio->users++;
1353 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1354 if (radio->users == 1)
1355 return si470x_start(radio);
1356 =======
1357
1358 retval = usb_autopm_get_interface(radio->intf);
1359 if (retval < 0) {
1360 radio->users--;
1361 return -EIO;
1362 }
1363
1364 if (radio->users == 1) {
1365 retval = si470x_start(radio);
1366 if (retval < 0)
1367 usb_autopm_put_interface(radio->intf);
1368 return retval;
1369 }
1370 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1371
1372 return 0;
1373 }
1374
1375
1376 /*
1377 * si470x_fops_release - file release
1378 */
1379 static int si470x_fops_release(struct inode *inode, struct file *file)
1380 {
1381 struct si470x_device *radio = video_get_drvdata(video_devdata(file));
1382 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1383 =======
1384 int retval;
1385 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1386
1387 if (!radio)
1388 return -ENODEV;
1389
1390 radio->users--;
1391 if (radio->users == 0) {
1392 /* stop rds reception */
1393 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1394 del_timer_sync(&radio->timer);
1395 flush_scheduled_work();
1396 =======
1397 cancel_delayed_work_sync(&radio->work);
1398 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1399
1400 /* cancel read processes */
1401 wake_up_interruptible(&radio->read_queue);
1402
1403 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1404 return si470x_stop(radio);
1405 =======
1406 retval = si470x_stop(radio);
1407 usb_autopm_put_interface(radio->intf);
1408 return retval;
1409 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1410 }
1411
1412 return 0;
1413 }
1414
1415
1416 /*
1417 * si470x_fops - file operations interface
1418 */
1419 static const struct file_operations si470x_fops = {
1420 .owner = THIS_MODULE,
1421 .llseek = no_llseek,
1422 .read = si470x_fops_read,
1423 .poll = si470x_fops_poll,
1424 .ioctl = video_ioctl2,
1425 .compat_ioctl = v4l_compat_ioctl32,
1426 .open = si470x_fops_open,
1427 .release = si470x_fops_release,
1428 };
1429
1430
1431
1432 /**************************************************************************
1433 * Video4Linux Interface
1434 **************************************************************************/
1435
1436 /*
1437 * si470x_v4l2_queryctrl - query control
1438 */
1439 static struct v4l2_queryctrl si470x_v4l2_queryctrl[] = {
1440 /* HINT: the disabled controls are only here to satify kradio and such apps */
1441 {
1442 .id = V4L2_CID_AUDIO_VOLUME,
1443 .type = V4L2_CTRL_TYPE_INTEGER,
1444 .name = "Volume",
1445 .minimum = 0,
1446 .maximum = 15,
1447 .step = 1,
1448 .default_value = 15,
1449 },
1450 {
1451 .id = V4L2_CID_AUDIO_BALANCE,
1452 .flags = V4L2_CTRL_FLAG_DISABLED,
1453 },
1454 {
1455 .id = V4L2_CID_AUDIO_BASS,
1456 .flags = V4L2_CTRL_FLAG_DISABLED,
1457 },
1458 {
1459 .id = V4L2_CID_AUDIO_TREBLE,
1460 .flags = V4L2_CTRL_FLAG_DISABLED,
1461 },
1462 {
1463 .id = V4L2_CID_AUDIO_MUTE,
1464 .type = V4L2_CTRL_TYPE_BOOLEAN,
1465 .name = "Mute",
1466 .minimum = 0,
1467 .maximum = 1,
1468 .step = 1,
1469 .default_value = 1,
1470 },
1471 {
1472 .id = V4L2_CID_AUDIO_LOUDNESS,
1473 .flags = V4L2_CTRL_FLAG_DISABLED,
1474 },
1475 };
1476
1477
1478 /*
1479 * si470x_vidioc_querycap - query device capabilities
1480 */
1481 static int si470x_vidioc_querycap(struct file *file, void *priv,
1482 struct v4l2_capability *capability)
1483 {
1484 strlcpy(capability->driver, DRIVER_NAME, sizeof(capability->driver));
1485 strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
1486 sprintf(capability->bus_info, "USB");
1487 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1488 capability->version = DRIVER_VERSION;
1489 =======
1490 capability->version = DRIVER_KERNEL_VERSION;
1491 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1492 capability->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
1493
1494 return 0;
1495 }
1496
1497
1498 /*
1499 * si470x_vidioc_g_input - get input
1500 */
1501 static int si470x_vidioc_g_input(struct file *filp, void *priv,
1502 unsigned int *i)
1503 {
1504 *i = 0;
1505
1506 return 0;
1507 }
1508
1509
1510 /*
1511 * si470x_vidioc_s_input - set input
1512 */
1513 static int si470x_vidioc_s_input(struct file *filp, void *priv, unsigned int i)
1514 {
1515 if (i != 0)
1516 return -EINVAL;
1517
1518 return 0;
1519 }
1520
1521
1522 /*
1523 * si470x_vidioc_queryctrl - enumerate control items
1524 */
1525 static int si470x_vidioc_queryctrl(struct file *file, void *priv,
1526 struct v4l2_queryctrl *qc)
1527 {
1528 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1529 int i;
1530 =======
1531 unsigned char i;
1532 int retval = -EINVAL;
1533 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1534
1535 for (i = 0; i < ARRAY_SIZE(si470x_v4l2_queryctrl); i++) {
1536 if (qc->id && qc->id == si470x_v4l2_queryctrl[i].id) {
1537 memcpy(qc, &(si470x_v4l2_queryctrl[i]), sizeof(*qc));
1538 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1539 return 0;
1540 =======
1541 retval = 0;
1542 break;
1543 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1544 }
1545 }
1546 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1547 =======
1548 if (retval < 0)
1549 printk(KERN_WARNING DRIVER_NAME
1550 ": query control failed with %d\n", retval);
1551 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1552
1553 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1554 return -EINVAL;
1555 =======
1556 return retval;
1557 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1558 }
1559
1560
1561 /*
1562 * si470x_vidioc_g_ctrl - get the value of a control
1563 */
1564 static int si470x_vidioc_g_ctrl(struct file *file, void *priv,
1565 struct v4l2_control *ctrl)
1566 {
1567 struct si470x_device *radio = video_get_drvdata(video_devdata(file));
1568
1569 switch (ctrl->id) {
1570 case V4L2_CID_AUDIO_VOLUME:
1571 ctrl->value = radio->registers[SYSCONFIG2] &
1572 SYSCONFIG2_VOLUME;
1573 break;
1574 case V4L2_CID_AUDIO_MUTE:
1575 ctrl->value = ((radio->registers[POWERCFG] &
1576 POWERCFG_DMUTE) == 0) ? 1 : 0;
1577 break;
1578 }
1579
1580 return 0;
1581 }
1582
1583
1584 /*
1585 * si470x_vidioc_s_ctrl - set the value of a control
1586 */
1587 static int si470x_vidioc_s_ctrl(struct file *file, void *priv,
1588 struct v4l2_control *ctrl)
1589 {
1590 struct si470x_device *radio = video_get_drvdata(video_devdata(file));
1591 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1592 =======
1593 int retval;
1594 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1595
1596 switch (ctrl->id) {
1597 case V4L2_CID_AUDIO_VOLUME:
1598 radio->registers[SYSCONFIG2] &= ~SYSCONFIG2_VOLUME;
1599 radio->registers[SYSCONFIG2] |= ctrl->value;
1600 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1601 return si470x_set_register(radio, SYSCONFIG2);
1602 =======
1603 retval = si470x_set_register(radio, SYSCONFIG2);
1604 break;
1605 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1606 case V4L2_CID_AUDIO_MUTE:
1607 if (ctrl->value == 1)
1608 radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
1609 else
1610 radio->registers[POWERCFG] |= POWERCFG_DMUTE;
1611 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1612 return si470x_set_register(radio, POWERCFG);
1613 =======
1614 retval = si470x_set_register(radio, POWERCFG);
1615 break;
1616 default:
1617 retval = -EINVAL;
1618 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1619 }
1620 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1621 =======
1622 if (retval < 0)
1623 printk(KERN_WARNING DRIVER_NAME
1624 ": set control failed with %d\n", retval);
1625 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1626
1627 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1628 return -EINVAL;
1629 =======
1630 return retval;
1631 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1632 }
1633
1634
1635 /*
1636 * si470x_vidioc_g_audio - get audio attributes
1637 */
1638 static int si470x_vidioc_g_audio(struct file *file, void *priv,
1639 struct v4l2_audio *audio)
1640 {
1641 if (audio->index > 1)
1642 return -EINVAL;
1643
1644 strcpy(audio->name, "Radio");
1645 audio->capability = V4L2_AUDCAP_STEREO;
1646
1647 return 0;
1648 }
1649
1650
1651 /*
1652 * si470x_vidioc_s_audio - set audio attributes
1653 */
1654 static int si470x_vidioc_s_audio(struct file *file, void *priv,
1655 struct v4l2_audio *audio)
1656 {
1657 if (audio->index != 0)
1658 return -EINVAL;
1659
1660 return 0;
1661 }
1662
1663
1664 /*
1665 * si470x_vidioc_g_tuner - get tuner attributes
1666 */
1667 static int si470x_vidioc_g_tuner(struct file *file, void *priv,
1668 struct v4l2_tuner *tuner)
1669 {
1670 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1671 int retval;
1672 =======
1673 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1674 struct si470x_device *radio = video_get_drvdata(video_devdata(file));
1675 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1676 =======
1677 int retval;
1678 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1679
1680 if (tuner->index > 0)
1681 return -EINVAL;
1682
1683 /* read status rssi */
1684 retval = si470x_get_register(radio, STATUSRSSI);
1685 if (retval < 0)
1686 return retval;
1687
1688 strcpy(tuner->name, "FM");
1689 tuner->type = V4L2_TUNER_RADIO;
1690 switch (band) {
1691 /* 0: 87.5 - 108 MHz (USA, Europe, default) */
1692 default:
1693 tuner->rangelow = 87.5 * FREQ_MUL;
1694 tuner->rangehigh = 108 * FREQ_MUL;
1695 break;
1696 /* 1: 76 - 108 MHz (Japan wide band) */
1697 case 1 :
1698 tuner->rangelow = 76 * FREQ_MUL;
1699 tuner->rangehigh = 108 * FREQ_MUL;
1700 break;
1701 /* 2: 76 - 90 MHz (Japan) */
1702 case 2 :
1703 tuner->rangelow = 76 * FREQ_MUL;
1704 tuner->rangehigh = 90 * FREQ_MUL;
1705 break;
1706 };
1707 tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
1708 tuner->capability = V4L2_TUNER_CAP_LOW;
1709
1710 /* Stereo indicator == Stereo (instead of Mono) */
1711 if ((radio->registers[STATUSRSSI] & STATUSRSSI_ST) == 1)
1712 tuner->audmode = V4L2_TUNER_MODE_STEREO;
1713 else
1714 tuner->audmode = V4L2_TUNER_MODE_MONO;
1715
1716 /* min is worst, max is best; signal:0..0xffff; rssi: 0..0xff */
1717 tuner->signal = (radio->registers[STATUSRSSI] & STATUSRSSI_RSSI)
1718 * 0x0101;
1719
1720 /* automatic frequency control: -1: freq to low, 1 freq to high */
1721 tuner->afc = 0;
1722
1723 return 0;
1724 }
1725
1726
1727 /*
1728 * si470x_vidioc_s_tuner - set tuner attributes
1729 */
1730 static int si470x_vidioc_s_tuner(struct file *file, void *priv,
1731 struct v4l2_tuner *tuner)
1732 {
1733 struct si470x_device *radio = video_get_drvdata(video_devdata(file));
1734 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1735 =======
1736 int retval;
1737 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1738
1739 if (tuner->index > 0)
1740 return -EINVAL;
1741
1742 if (tuner->audmode == V4L2_TUNER_MODE_MONO)
1743 radio->registers[POWERCFG] |= POWERCFG_MONO; /* force mono */
1744 else
1745 radio->registers[POWERCFG] &= ~POWERCFG_MONO; /* try stereo */
1746
1747 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1748 return si470x_set_register(radio, POWERCFG);
1749 =======
1750 retval = si470x_set_register(radio, POWERCFG);
1751 if (retval < 0)
1752 printk(KERN_WARNING DRIVER_NAME
1753 ": set tuner failed with %d\n", retval);
1754
1755 return retval;
1756 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1757 }
1758
1759
1760 /*
1761 * si470x_vidioc_g_frequency - get tuner or modulator radio frequency
1762 */
1763 static int si470x_vidioc_g_frequency(struct file *file, void *priv,
1764 struct v4l2_frequency *freq)
1765 {
1766 struct si470x_device *radio = video_get_drvdata(video_devdata(file));
1767
1768 freq->type = V4L2_TUNER_RADIO;
1769 freq->frequency = si470x_get_freq(radio);
1770
1771 return 0;
1772 }
1773
1774
1775 /*
1776 * si470x_vidioc_s_frequency - set tuner or modulator radio frequency
1777 */
1778 static int si470x_vidioc_s_frequency(struct file *file, void *priv,
1779 struct v4l2_frequency *freq)
1780 {
1781 struct si470x_device *radio = video_get_drvdata(video_devdata(file));
1782 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1783 =======
1784 int retval;
1785 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1786
1787 if (freq->type != V4L2_TUNER_RADIO)
1788 return -EINVAL;
1789
1790 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1791 return si470x_set_freq(radio, freq->frequency);
1792 =======
1793 retval = si470x_set_freq(radio, freq->frequency);
1794 if (retval < 0)
1795 printk(KERN_WARNING DRIVER_NAME
1796 ": set frequency failed with %d\n", retval);
1797
1798 return 0;
1799 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1800 }
1801
1802
1803 /*
1804 * si470x_viddev_tamples - video device interface
1805 */
1806 static struct video_device si470x_viddev_template = {
1807 .fops = &si470x_fops,
1808 .name = DRIVER_NAME,
1809 .type = VID_TYPE_TUNER,
1810 .release = video_device_release,
1811 .vidioc_querycap = si470x_vidioc_querycap,
1812 .vidioc_g_input = si470x_vidioc_g_input,
1813 .vidioc_s_input = si470x_vidioc_s_input,
1814 .vidioc_queryctrl = si470x_vidioc_queryctrl,
1815 .vidioc_g_ctrl = si470x_vidioc_g_ctrl,
1816 .vidioc_s_ctrl = si470x_vidioc_s_ctrl,
1817 .vidioc_g_audio = si470x_vidioc_g_audio,
1818 .vidioc_s_audio = si470x_vidioc_s_audio,
1819 .vidioc_g_tuner = si470x_vidioc_g_tuner,
1820 .vidioc_s_tuner = si470x_vidioc_s_tuner,
1821 .vidioc_g_frequency = si470x_vidioc_g_frequency,
1822 .vidioc_s_frequency = si470x_vidioc_s_frequency,
1823 .owner = THIS_MODULE,
1824 };
1825
1826
1827
1828 /**************************************************************************
1829 * USB Interface
1830 **************************************************************************/
1831
1832 /*
1833 * si470x_usb_driver_probe - probe for the device
1834 */
1835 static int si470x_usb_driver_probe(struct usb_interface *intf,
1836 const struct usb_device_id *id)
1837 {
1838 struct si470x_device *radio;
1839 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1840 =======
1841 int retval = -ENOMEM;
1842 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1843
1844 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1845 /* memory and interface allocations */
1846 radio = kmalloc(sizeof(struct si470x_device), GFP_KERNEL);
1847 =======
1848 /* private data allocation */
1849 radio = kzalloc(sizeof(struct si470x_device), GFP_KERNEL);
1850 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1851 if (!radio)
1852 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1853 return -ENOMEM;
1854 =======
1855 goto err_initial;
1856
1857 /* video device allocation */
1858 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1859 radio->videodev = video_device_alloc();
1860 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1861 if (!radio->videodev) {
1862 kfree(radio);
1863 return -ENOMEM;
1864 }
1865 =======
1866 if (!radio->videodev)
1867 goto err_radio;
1868
1869 /* initial configuration */
1870 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1871 memcpy(radio->videodev, &si470x_viddev_template,
1872 sizeof(si470x_viddev_template));
1873 radio->users = 0;
1874 radio->usbdev = interface_to_usbdev(intf);
1875 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1876 =======
1877 radio->intf = intf;
1878 mutex_init(&radio->lock);
1879 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1880 video_set_drvdata(radio->videodev, radio);
1881 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1882 if (video_register_device(radio->videodev, VFL_TYPE_RADIO, radio_nr)) {
1883 printk(KERN_WARNING DRIVER_NAME
1884 ": Could not register video device\n");
1885 video_device_release(radio->videodev);
1886 kfree(radio);
1887 return -EIO;
1888 }
1889 usb_set_intfdata(intf, radio);
1890 =======
1891 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1892
1893 /* show some infos about the specific device */
1894 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1895 if (si470x_get_all_registers(radio) < 0) {
1896 video_device_release(radio->videodev);
1897 kfree(radio);
1898 return -EIO;
1899 }
1900 printk(KERN_INFO DRIVER_NAME ": DeviceID=0x%4.4x ChipID=0x%4.4x\n",
1901 =======
1902 retval = -EIO;
1903 if (si470x_get_all_registers(radio) < 0)
1904 goto err_all;
1905 printk(KERN_INFO DRIVER_NAME ": DeviceID=0x%4.4hx ChipID=0x%4.4hx\n",
1906 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1907 radio->registers[DEVICEID], radio->registers[CHIPID]);
1908
1909 /* check if firmware is current */
1910 if ((radio->registers[CHIPID] & CHIPID_FIRMWARE)
1911 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1912 < RADIO_SW_VERSION_CURRENT)
1913 =======
1914 < RADIO_SW_VERSION_CURRENT) {
1915 printk(KERN_WARNING DRIVER_NAME
1916 ": This driver is known to work with "
1917 "firmware version %hu,\n", RADIO_SW_VERSION_CURRENT);
1918 printk(KERN_WARNING DRIVER_NAME
1919 ": but the device has firmware version %hu.\n",
1920 radio->registers[CHIPID] & CHIPID_FIRMWARE);
1921 printk(KERN_WARNING DRIVER_NAME
1922 ": If you have some trouble using this driver,\n");
1923 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1924 printk(KERN_WARNING DRIVER_NAME
1925 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1926 ": This driver is known to work with chip version %d, "
1927 "but the device has firmware %d.\n"
1928 DRIVER_NAME
1929 "If you have some trouble using this driver, please "
1930 "report to V4L ML at video4linux-list@redhat.com\n",
1931 radio->registers[CHIPID] & CHIPID_FIRMWARE,
1932 RADIO_SW_VERSION_CURRENT);
1933 =======
1934 ": please report to V4L ML at "
1935 "video4linux-list@redhat.com\n");
1936 }
1937 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1938
1939 /* set initial frequency */
1940 si470x_set_freq(radio, 87.5 * FREQ_MUL); /* available in all regions */
1941
1942 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1943 /* rds initialization */
1944 =======
1945 /* rds buffer allocation */
1946 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1947 radio->buf_size = rds_buf * 3;
1948 radio->buffer = kmalloc(radio->buf_size, GFP_KERNEL);
1949 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1950 if (!radio->buffer) {
1951 video_device_release(radio->videodev);
1952 kfree(radio);
1953 return -ENOMEM;
1954 }
1955 =======
1956 if (!radio->buffer)
1957 goto err_all;
1958
1959 /* rds buffer configuration */
1960 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
1961 radio->wr_index = 0;
1962 radio->rd_index = 0;
1963 init_waitqueue_head(&radio->read_queue);
1964
1965 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
1966 /* prepare polling via eventd */
1967 INIT_WORK(&radio->work, si470x_work);
1968 init_timer(&radio->timer);
1969 radio->timer.function = si470x_timer;
1970 radio->timer.data = (unsigned long) radio;
1971 =======
1972 /* prepare rds work function */
1973 INIT_DELAYED_WORK(&radio->work, si470x_work);
1974
1975 /* register video device */
1976 if (video_register_device(radio->videodev, VFL_TYPE_RADIO, radio_nr)) {
1977 printk(KERN_WARNING DRIVER_NAME
1978 ": Could not register video device\n");
1979 goto err_all;
1980 }
1981 usb_set_intfdata(intf, radio);
1982
1983 return 0;
1984 err_all:
1985 video_device_release(radio->videodev);
1986 kfree(radio->buffer);
1987 err_radio:
1988 kfree(radio);
1989 err_initial:
1990 return retval;
1991 }
1992
1993
1994 /*
1995 * si470x_usb_driver_suspend - suspend the device
1996 */
1997 static int si470x_usb_driver_suspend(struct usb_interface *intf,
1998 pm_message_t message)
1999 {
2000 struct si470x_device *radio = usb_get_intfdata(intf);
2001
2002 printk(KERN_INFO DRIVER_NAME ": suspending now...\n");
2003
2004 cancel_delayed_work_sync(&radio->work);
2005
2006 return 0;
2007 }
2008
2009
2010 /*
2011 * si470x_usb_driver_resume - resume the device
2012 */
2013 static int si470x_usb_driver_resume(struct usb_interface *intf)
2014 {
2015 struct si470x_device *radio = usb_get_intfdata(intf);
2016
2017 printk(KERN_INFO DRIVER_NAME ": resuming now...\n");
2018
2019 mutex_lock(&radio->lock);
2020 if (radio->users && radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS)
2021 schedule_delayed_work(&radio->work,
2022 msecs_to_jiffies(rds_poll_time));
2023 mutex_unlock(&radio->lock);
2024 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
2025
2026 return 0;
2027 }
2028
2029
2030 /*
2031 * si470x_usb_driver_disconnect - disconnect the device
2032 */
2033 static void si470x_usb_driver_disconnect(struct usb_interface *intf)
2034 {
2035 struct si470x_device *radio = usb_get_intfdata(intf);
2036
2037 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
2038 del_timer_sync(&radio->timer);
2039 flush_scheduled_work();
2040
2041 =======
2042 cancel_delayed_work_sync(&radio->work);
2043 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
2044 usb_set_intfdata(intf, NULL);
2045 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
2046 if (radio) {
2047 video_unregister_device(radio->videodev);
2048 kfree(radio->buffer);
2049 kfree(radio);
2050 }
2051 =======
2052 video_unregister_device(radio->videodev);
2053 kfree(radio->buffer);
2054 kfree(radio);
2055 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
2056 }
2057
2058
2059 /*
2060 * si470x_usb_driver - usb driver interface
2061 */
2062 static struct usb_driver si470x_usb_driver = {
2063 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
2064 .name = DRIVER_NAME,
2065 .probe = si470x_usb_driver_probe,
2066 .disconnect = si470x_usb_driver_disconnect,
2067 .id_table = si470x_usb_driver_id_table,
2068 =======
2069 .name = DRIVER_NAME,
2070 .probe = si470x_usb_driver_probe,
2071 .disconnect = si470x_usb_driver_disconnect,
2072 .suspend = si470x_usb_driver_suspend,
2073 .resume = si470x_usb_driver_resume,
2074 .id_table = si470x_usb_driver_id_table,
2075 .supports_autosuspend = 1,
2076 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
2077 };
2078
2079
2080
2081 /**************************************************************************
2082 * Module Interface
2083 **************************************************************************/
2084
2085 /*
2086 * si470x_module_init - module init
2087 */
2088 static int __init si470x_module_init(void)
2089 {
2090 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
2091 printk(KERN_INFO DRIVER_DESC "\n");
2092 =======
2093 printk(KERN_INFO DRIVER_DESC ", Version " DRIVER_VERSION "\n");
2094 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
2095 return usb_register(&si470x_usb_driver);
2096 }
2097
2098
2099 /*
2100 * si470x_module_exit - module exit
2101 */
2102 static void __exit si470x_module_exit(void)
2103 {
2104 usb_deregister(&si470x_usb_driver);
2105 }
2106
2107
2108 module_init(si470x_module_init);
2109 module_exit(si470x_module_exit);
2110
2111 MODULE_LICENSE("GPL");
2112 MODULE_AUTHOR(DRIVER_AUTHOR);
2113 MODULE_DESCRIPTION(DRIVER_DESC);
2114 <<<<<<< HEAD:drivers/media/radio/radio-si470x.c
2115 MODULE_VERSION("1.0.4");
2116 =======
2117 MODULE_VERSION(DRIVER_VERSION);
2118 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:drivers/media/radio/radio-si470x.c
WRT350N Kernel Patches