blob: b18205b3fa244e98659e9735398f1e42b0c62472 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 *
3 * v4l2 device driver for cx2388x based TV cards
4 *
5 * (c) 2003,04 Gerd Knorr <kraxel@bytesex.org> [SUSE Labs]
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22#include <linux/pci.h>
23#include <linux/i2c.h>
24#include <linux/i2c-algo-bit.h>
25#include <linux/videodev.h>
26#include <linux/kdev_t.h>
27
28#include <media/tuner.h>
29#include <media/tveeprom.h>
30#include <media/audiochip.h>
31#include <media/video-buf.h>
32#include <media/video-buf-dvb.h>
33
34#include "btcx-risc.h"
35#include "cx88-reg.h"
36
Mauro Carvalho Chehab10b89ee32005-09-09 13:04:03 -070037#include <linux/version.h>
Mauro Carvalho Chehabc5287ba2005-07-15 03:56:28 -070038#define CX88_VERSION_CODE KERNEL_VERSION(0,0,5)
Linus Torvalds1da177e2005-04-16 15:20:36 -070039
40#ifndef TRUE
41# define TRUE (1==1)
42#endif
43#ifndef FALSE
44# define FALSE (1==0)
45#endif
46#define UNSET (-1U)
47
48#define CX88_MAXBOARDS 8
49
Mauro Carvalho Chehabe52e98a2005-09-09 13:03:41 -070050/* Max number of inputs by card */
51#define MAX_CX88_INPUT 8
52
Linus Torvalds1da177e2005-04-16 15:20:36 -070053/* ----------------------------------------------------------- */
54/* defines and enums */
55
Linus Torvalds1da177e2005-04-16 15:20:36 -070056#define FORMAT_FLAGS_PACKED 0x01
57#define FORMAT_FLAGS_PLANAR 0x02
58
59#define VBI_LINE_COUNT 17
60#define VBI_LINE_LENGTH 2048
61
62/* need "shadow" registers for some write-only ones ... */
63#define SHADOW_AUD_VOL_CTL 1
64#define SHADOW_AUD_BAL_CTL 2
65#define SHADOW_MAX 2
66
Mauro Carvalho Chehabb45009b2005-06-23 22:05:03 -070067/* FM Radio deemphasis type */
68enum cx88_deemph_type {
69 FM_NO_DEEMPH = 0,
70 FM_DEEMPH_50,
71 FM_DEEMPH_75
72};
73
Linus Torvalds1da177e2005-04-16 15:20:36 -070074/* ----------------------------------------------------------- */
75/* tv norms */
76
77struct cx88_tvnorm {
78 char *name;
79 v4l2_std_id id;
80 u32 cxiformat;
81 u32 cxoformat;
82};
83
84static unsigned int inline norm_maxw(struct cx88_tvnorm *norm)
85{
86 return (norm->id & V4L2_STD_625_50) ? 768 : 640;
Linus Torvalds1da177e2005-04-16 15:20:36 -070087}
88
Mauro Carvalho Chehab41ef7c12005-07-12 13:58:44 -070089
Linus Torvalds1da177e2005-04-16 15:20:36 -070090static unsigned int inline norm_maxh(struct cx88_tvnorm *norm)
91{
92 return (norm->id & V4L2_STD_625_50) ? 576 : 480;
93}
94
95/* ----------------------------------------------------------- */
96/* static data */
97
98struct cx8800_fmt {
99 char *name;
100 u32 fourcc; /* v4l2 format id */
101 int depth;
102 int flags;
103 u32 cxformat;
104};
105
106struct cx88_ctrl {
107 struct v4l2_queryctrl v;
108 u32 off;
109 u32 reg;
110 u32 sreg;
111 u32 mask;
112 u32 shift;
113};
114
115/* ----------------------------------------------------------- */
116/* SRAM memory management data (see cx88-core.c) */
117
118#define SRAM_CH21 0 /* video */
119#define SRAM_CH22 1
120#define SRAM_CH23 2
121#define SRAM_CH24 3 /* vbi */
122#define SRAM_CH25 4 /* audio */
123#define SRAM_CH26 5
124#define SRAM_CH28 6 /* mpeg */
125/* more */
126
127struct sram_channel {
128 char *name;
129 u32 cmds_start;
130 u32 ctrl_start;
131 u32 cdt;
132 u32 fifo_start;
133 u32 fifo_size;
134 u32 ptr1_reg;
135 u32 ptr2_reg;
136 u32 cnt1_reg;
137 u32 cnt2_reg;
138};
139extern struct sram_channel cx88_sram_channels[];
140
141/* ----------------------------------------------------------- */
142/* card configuration */
143
144#define CX88_BOARD_NOAUTO UNSET
145#define CX88_BOARD_UNKNOWN 0
146#define CX88_BOARD_HAUPPAUGE 1
147#define CX88_BOARD_GDI 2
148#define CX88_BOARD_PIXELVIEW 3
149#define CX88_BOARD_ATI_WONDER_PRO 4
150#define CX88_BOARD_WINFAST2000XP_EXPERT 5
151#define CX88_BOARD_AVERTV_303 6
152#define CX88_BOARD_MSI_TVANYWHERE_MASTER 7
153#define CX88_BOARD_WINFAST_DV2000 8
154#define CX88_BOARD_LEADTEK_PVR2000 9
155#define CX88_BOARD_IODATA_GVVCP3PCI 10
156#define CX88_BOARD_PROLINK_PLAYTVPVR 11
157#define CX88_BOARD_ASUS_PVR_416 12
158#define CX88_BOARD_MSI_TVANYWHERE 13
159#define CX88_BOARD_KWORLD_DVB_T 14
160#define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T1 15
161#define CX88_BOARD_KWORLD_LTV883 16
Mauro Carvalho Chehaba82decf2005-07-07 17:58:36 -0700162#define CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q 17
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163#define CX88_BOARD_HAUPPAUGE_DVB_T1 18
164#define CX88_BOARD_CONEXANT_DVB_T1 19
165#define CX88_BOARD_PROVIDEO_PV259 20
166#define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_PLUS 21
167#define CX88_BOARD_PCHDTV_HD3000 22
168#define CX88_BOARD_DNTV_LIVE_DVB_T 23
169#define CX88_BOARD_HAUPPAUGE_ROSLYN 24
Mauro Carvalho Chehaba82decf2005-07-07 17:58:36 -0700170#define CX88_BOARD_DIGITALLOGIC_MEC 25
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171#define CX88_BOARD_IODATA_GVBCTV7E 26
Manuel Capinha239df2e2005-06-23 22:04:53 -0700172#define CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO 27
Mauro Carvalho Chehabb45009b2005-06-23 22:05:03 -0700173#define CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_T 28
Mauro Carvalho Chehaba82decf2005-07-07 17:58:36 -0700174#define CX88_BOARD_ADSTECH_DVB_T_PCI 29
Michael Krufkye057ee12005-07-07 17:58:40 -0700175#define CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1 30
Michael Krufky9fef07c2005-07-31 22:34:46 -0700176#define CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD 31
Nickolay V. Shmyrevd45170e2005-11-08 21:36:15 -0800177#define CX88_BOARD_AVERMEDIA_ULTRATV_MC_550 32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178
179enum cx88_itype {
180 CX88_VMUX_COMPOSITE1 = 1,
181 CX88_VMUX_COMPOSITE2,
182 CX88_VMUX_COMPOSITE3,
183 CX88_VMUX_COMPOSITE4,
184 CX88_VMUX_SVIDEO,
185 CX88_VMUX_TELEVISION,
186 CX88_VMUX_CABLE,
187 CX88_VMUX_DVB,
188 CX88_VMUX_DEBUG,
189 CX88_RADIO,
190};
191
192struct cx88_input {
193 enum cx88_itype type;
194 unsigned int vmux;
195 u32 gpio0, gpio1, gpio2, gpio3;
196};
197
198struct cx88_board {
199 char *name;
200 unsigned int tuner_type;
Mauro Carvalho Chehabb45009b2005-06-23 22:05:03 -0700201 unsigned int radio_type;
202 unsigned char tuner_addr;
203 unsigned char radio_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 int tda9887_conf;
Mauro Carvalho Chehabe52e98a2005-09-09 13:03:41 -0700205 struct cx88_input input[MAX_CX88_INPUT];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 struct cx88_input radio;
207 int blackbird:1;
208 int dvb:1;
209};
210
211struct cx88_subid {
212 u16 subvendor;
213 u16 subdevice;
214 u32 card;
215};
216
217#define INPUT(nr) (&cx88_boards[core->board].input[nr])
218
219/* ----------------------------------------------------------- */
220/* device / file handle status */
221
222#define RESOURCE_OVERLAY 1
223#define RESOURCE_VIDEO 2
224#define RESOURCE_VBI 4
225
226#define BUFFER_TIMEOUT (HZ/2) /* 0.5 seconds */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227
228/* buffer for one video frame */
229struct cx88_buffer {
230 /* common v4l buffer stuff -- must be first */
231 struct videobuf_buffer vb;
232
233 /* cx88 specific */
234 unsigned int bpl;
235 struct btcx_riscmem risc;
236 struct cx8800_fmt *fmt;
237 u32 count;
238};
239
240struct cx88_dmaqueue {
241 struct list_head active;
242 struct list_head queued;
243 struct timer_list timeout;
244 struct btcx_riscmem stopper;
245 u32 count;
246};
247
248struct cx88_core {
249 struct list_head devlist;
250 atomic_t refcount;
251
252 /* board name */
253 int nr;
254 char name[32];
255
256 /* pci stuff */
257 int pci_bus;
258 int pci_slot;
259 u32 __iomem *lmmio;
260 u8 __iomem *bmmio;
261 u32 shadow[SHADOW_MAX];
262 int pci_irqmask;
263
264 /* i2c i/o */
265 struct i2c_adapter i2c_adap;
266 struct i2c_algo_bit_data i2c_algo;
267 struct i2c_client i2c_client;
268 u32 i2c_state, i2c_rc;
269
270 /* config info -- analog */
271 unsigned int board;
272 unsigned int tuner_type;
Mauro Carvalho Chehabb45009b2005-06-23 22:05:03 -0700273 unsigned int radio_type;
274 unsigned char tuner_addr;
275 unsigned char radio_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 unsigned int tda9887_conf;
277 unsigned int has_radio;
278
279 /* config info -- dvb */
280 struct dvb_pll_desc *pll_desc;
281 unsigned int pll_addr;
282
283 /* state info */
284 struct task_struct *kthread;
285 struct cx88_tvnorm *tvnorm;
286 u32 tvaudio;
287 u32 audiomode_manual;
288 u32 audiomode_current;
289 u32 input;
290 u32 astat;
291
292 /* IR remote control state */
293 struct cx88_IR *ir;
Mauro Carvalho Chehabe52e98a2005-09-09 13:03:41 -0700294
295 struct semaphore lock;
296
297 /* various v4l controls */
298 u32 freq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299};
300
301struct cx8800_dev;
302struct cx8802_dev;
303
304/* ----------------------------------------------------------- */
305/* function 0: video stuff */
306
307struct cx8800_fh {
308 struct cx8800_dev *dev;
309 enum v4l2_buf_type type;
310 int radio;
311 unsigned int resources;
312
313 /* video overlay */
314 struct v4l2_window win;
315 struct v4l2_clip *clips;
316 unsigned int nclips;
317
318 /* video capture */
319 struct cx8800_fmt *fmt;
320 unsigned int width,height;
321 struct videobuf_queue vidq;
322
323 /* vbi capture */
324 struct videobuf_queue vbiq;
325};
326
327struct cx8800_suspend_state {
328 int disabled;
329};
330
331struct cx8800_dev {
332 struct cx88_core *core;
333 struct list_head devlist;
Mauro Carvalho Chehabe52e98a2005-09-09 13:03:41 -0700334 spinlock_t slock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335
336 /* various device info */
337 unsigned int resources;
338 struct video_device *video_dev;
339 struct video_device *vbi_dev;
340 struct video_device *radio_dev;
341
342 /* pci i/o */
343 struct pci_dev *pci;
344 unsigned char pci_rev,pci_lat;
345
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
347 /* capture queues */
348 struct cx88_dmaqueue vidq;
349 struct cx88_dmaqueue vbiq;
350
351 /* various v4l controls */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352
353 /* other global state info */
354 struct cx8800_suspend_state state;
355};
356
357/* ----------------------------------------------------------- */
358/* function 1: audio/alsa stuff */
Mauro Carvalho Chehabe52e98a2005-09-09 13:03:41 -0700359/* =============> moved to cx88-alsa.c <====================== */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361
362/* ----------------------------------------------------------- */
363/* function 2: mpeg stuff */
364
365struct cx8802_fh {
366 struct cx8802_dev *dev;
367 struct videobuf_queue mpegq;
368};
369
370struct cx8802_suspend_state {
371 int disabled;
372};
373
Catalin Climov31629422005-11-08 21:36:17 -0800374/* TODO: move this to struct v4l2_mpeg_compression ? */
375struct blackbird_dnr {
376 u32 mode;
377 u32 type;
378 u32 spatial;
379 u32 temporal;
380};
381
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382struct cx8802_dev {
383 struct cx88_core *core;
Mauro Carvalho Chehabe52e98a2005-09-09 13:03:41 -0700384 spinlock_t slock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385
386 /* pci i/o */
387 struct pci_dev *pci;
388 unsigned char pci_rev,pci_lat;
389
390 /* dma queues */
391 struct cx88_dmaqueue mpegq;
392 u32 ts_packet_size;
393 u32 ts_packet_count;
394
395 /* other global state info */
396 struct cx8802_suspend_state state;
397
398 /* for blackbird only */
399 struct list_head devlist;
400 struct video_device *mpeg_dev;
401 u32 mailbox;
402 int width;
403 int height;
404
405 /* for dvb only */
406 struct videobuf_dvb dvb;
407 void* fe_handle;
408 int (*fe_release)(void *handle);
409
410 /* for switching modulation types */
411 unsigned char ts_gen_cntrl;
Catalin Climov31629422005-11-08 21:36:17 -0800412
413 /* mpeg params */
414 struct v4l2_mpeg_compression params;
415 struct blackbird_dnr dnr_params;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416};
417
418/* ----------------------------------------------------------- */
419
420#define cx_read(reg) readl(core->lmmio + ((reg)>>2))
421#define cx_write(reg,value) writel((value), core->lmmio + ((reg)>>2))
422#define cx_writeb(reg,value) writeb((value), core->bmmio + (reg))
423
424#define cx_andor(reg,mask,value) \
425 writel((readl(core->lmmio+((reg)>>2)) & ~(mask)) |\
426 ((value) & (mask)), core->lmmio+((reg)>>2))
427#define cx_set(reg,bit) cx_andor((reg),(bit),(bit))
428#define cx_clear(reg,bit) cx_andor((reg),(bit),0)
429
430#define cx_wait(d) { if (need_resched()) schedule(); else udelay(d); }
431
432/* shadow registers */
433#define cx_sread(sreg) (core->shadow[sreg])
434#define cx_swrite(sreg,reg,value) \
435 (core->shadow[sreg] = value, \
436 writel(core->shadow[sreg], core->lmmio + ((reg)>>2)))
437#define cx_sandor(sreg,reg,mask,value) \
438 (core->shadow[sreg] = (core->shadow[sreg] & ~(mask)) | ((value) & (mask)), \
439 writel(core->shadow[sreg], core->lmmio + ((reg)>>2)))
440
441/* ----------------------------------------------------------- */
442/* cx88-core.c */
443
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444extern void cx88_print_irqbits(char *name, char *tag, char **strings,
445 u32 bits, u32 mask);
446extern void cx88_print_ioctl(char *name, unsigned int cmd);
447
448extern int cx88_core_irq(struct cx88_core *core, u32 status);
449extern void cx88_wakeup(struct cx88_core *core,
450 struct cx88_dmaqueue *q, u32 count);
451extern void cx88_shutdown(struct cx88_core *core);
452extern int cx88_reset(struct cx88_core *core);
453
454extern int
455cx88_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
456 struct scatterlist *sglist,
457 unsigned int top_offset, unsigned int bottom_offset,
458 unsigned int bpl, unsigned int padding, unsigned int lines);
459extern int
460cx88_risc_databuffer(struct pci_dev *pci, struct btcx_riscmem *risc,
461 struct scatterlist *sglist, unsigned int bpl,
462 unsigned int lines);
463extern int
464cx88_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
465 u32 reg, u32 mask, u32 value);
466extern void
467cx88_free_buffer(struct pci_dev *pci, struct cx88_buffer *buf);
468
469extern void cx88_risc_disasm(struct cx88_core *core,
470 struct btcx_riscmem *risc);
471extern int cx88_sram_channel_setup(struct cx88_core *core,
472 struct sram_channel *ch,
473 unsigned int bpl, u32 risc);
474extern void cx88_sram_channel_dump(struct cx88_core *core,
475 struct sram_channel *ch);
476
477extern int cx88_set_scale(struct cx88_core *core, unsigned int width,
478 unsigned int height, enum v4l2_field field);
479extern int cx88_set_tvnorm(struct cx88_core *core, struct cx88_tvnorm *norm);
480
481extern struct video_device *cx88_vdev_init(struct cx88_core *core,
482 struct pci_dev *pci,
483 struct video_device *template,
484 char *type);
485extern struct cx88_core* cx88_core_get(struct pci_dev *pci);
486extern void cx88_core_put(struct cx88_core *core,
487 struct pci_dev *pci);
488
489/* ----------------------------------------------------------- */
490/* cx88-vbi.c */
491
492void cx8800_vbi_fmt(struct cx8800_dev *dev, struct v4l2_format *f);
Mauro Carvalho Chehabb45009b2005-06-23 22:05:03 -0700493/*
494int cx8800_start_vbi_dma(struct cx8800_dev *dev,
495 struct cx88_dmaqueue *q,
496 struct cx88_buffer *buf);
497*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498int cx8800_stop_vbi_dma(struct cx8800_dev *dev);
499int cx8800_restart_vbi_queue(struct cx8800_dev *dev,
500 struct cx88_dmaqueue *q);
501void cx8800_vbi_timeout(unsigned long data);
502
503extern struct videobuf_queue_ops cx8800_vbi_qops;
504
505/* ----------------------------------------------------------- */
506/* cx88-i2c.c */
507
508extern int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci);
509extern void cx88_call_i2c_clients(struct cx88_core *core,
510 unsigned int cmd, void *arg);
511
512
513/* ----------------------------------------------------------- */
514/* cx88-cards.c */
515
516extern struct cx88_board cx88_boards[];
517extern const unsigned int cx88_bcount;
518
519extern struct cx88_subid cx88_subids[];
520extern const unsigned int cx88_idcount;
521
522extern void cx88_card_list(struct cx88_core *core, struct pci_dev *pci);
523extern void cx88_card_setup(struct cx88_core *core);
524
525/* ----------------------------------------------------------- */
526/* cx88-tvaudio.c */
527
528#define WW_NONE 1
529#define WW_BTSC 2
530#define WW_NICAM_I 3
531#define WW_NICAM_BGDKL 4
532#define WW_A1 5
533#define WW_A2_BG 6
534#define WW_A2_DK 7
535#define WW_A2_M 8
536#define WW_EIAJ 9
537#define WW_SYSTEM_L_AM 10
538#define WW_I2SPT 11
539#define WW_FM 12
540
541void cx88_set_tvaudio(struct cx88_core *core);
542void cx88_newstation(struct cx88_core *core);
543void cx88_get_stereo(struct cx88_core *core, struct v4l2_tuner *t);
544void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual);
545int cx88_audio_thread(void *data);
546
547/* ----------------------------------------------------------- */
548/* cx88-input.c */
549
550int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci);
551int cx88_ir_fini(struct cx88_core *core);
552void cx88_ir_irq(struct cx88_core *core);
553
554/* ----------------------------------------------------------- */
555/* cx88-mpeg.c */
556
Catalin Climov31629422005-11-08 21:36:17 -0800557int cx8802_buf_prepare(struct cx8802_dev *dev, struct cx88_buffer *buf,
558 enum v4l2_field field);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559void cx8802_buf_queue(struct cx8802_dev *dev, struct cx88_buffer *buf);
560void cx8802_cancel_buffers(struct cx8802_dev *dev);
561
562int cx8802_init_common(struct cx8802_dev *dev);
563void cx8802_fini_common(struct cx8802_dev *dev);
564
565int cx8802_suspend_common(struct pci_dev *pci_dev, pm_message_t state);
566int cx8802_resume_common(struct pci_dev *pci_dev);
567
Mauro Carvalho Chehabe52e98a2005-09-09 13:03:41 -0700568/* ----------------------------------------------------------- */
569/* cx88-video.c */
570extern int cx88_do_ioctl(struct inode *inode, struct file *file, int radio,
571 struct cx88_core *core, unsigned int cmd,
572 void *arg, v4l2_kioctl driver_ioctl);
573
574/* ----------------------------------------------------------- */
575/* cx88-blackbird.c */
576extern int (*cx88_ioctl_hook)(struct inode *inode, struct file *file,
577 unsigned int cmd, void *arg);
578extern unsigned int (*cx88_ioctl_translator)(unsigned int cmd);
Catalin Climov31629422005-11-08 21:36:17 -0800579void blackbird_set_params(struct cx8802_dev *dev,
580 struct v4l2_mpeg_compression *params);
581void blackbird_set_dnr_params(struct cx8802_dev *dev,
582 struct blackbird_dnr* dnr_params);
Mauro Carvalho Chehabe52e98a2005-09-09 13:03:41 -0700583
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584/*
585 * Local variables:
586 * c-basic-offset: 8
587 * End:
Mauro Carvalho Chehabe52e98a2005-09-09 13:03:41 -0700588 * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589 */