aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/video/w9966.c
diff options
context:
space:
mode:
authorHans Verkuil <hverkuil@xs4all.nl>2010-03-22 03:47:27 -0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-05-17 23:51:28 -0400
commit4bfdd58604ead4d49b29630ee8f72c99b7803b7d (patch)
treeab5fc9e986819484a9be3420932919db7ca5a788 /drivers/media/video/w9966.c
parent88f4423454a23375f07bb4ff3a80d209930560d0 (diff)
V4L/DVB: w9966: coding style cleanup
Clean up the coding style before we convert this driver to V4L2. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/w9966.c')
-rw-r--r--drivers/media/video/w9966.c461
1 files changed, 223 insertions, 238 deletions
diff --git a/drivers/media/video/w9966.c b/drivers/media/video/w9966.c
index bf9bf650a317..25364b8f857b 100644
--- a/drivers/media/video/w9966.c
+++ b/drivers/media/video/w9966.c
@@ -76,12 +76,12 @@
76 */ 76 */
77 77
78#define W9966_DRIVERNAME "W9966CF Webcam" 78#define W9966_DRIVERNAME "W9966CF Webcam"
79#define W9966_MAXCAMS 4 // Maximum number of cameras 79#define W9966_MAXCAMS 4 /* Maximum number of cameras */
80#define W9966_RBUFFER 2048 // Read buffer (must be an even number) 80#define W9966_RBUFFER 2048 /* Read buffer (must be an even number) */
81#define W9966_SRAMSIZE 131072 // 128kb 81#define W9966_SRAMSIZE 131072 /* 128kb */
82#define W9966_SRAMID 0x02 // check w9966cf.pdf 82#define W9966_SRAMID 0x02 /* check w9966cf.pdf */
83 83
84// Empirically determined window limits 84/* Empirically determined window limits */
85#define W9966_WND_MIN_X 16 85#define W9966_WND_MIN_X 16
86#define W9966_WND_MIN_Y 14 86#define W9966_WND_MIN_Y 14
87#define W9966_WND_MAX_X 705 87#define W9966_WND_MAX_X 705
@@ -89,7 +89,7 @@
89#define W9966_WND_MAX_W (W9966_WND_MAX_X - W9966_WND_MIN_X) 89#define W9966_WND_MAX_W (W9966_WND_MAX_X - W9966_WND_MIN_X)
90#define W9966_WND_MAX_H (W9966_WND_MAX_Y - W9966_WND_MIN_Y) 90#define W9966_WND_MAX_H (W9966_WND_MAX_Y - W9966_WND_MIN_Y)
91 91
92// Keep track of our current state 92/* Keep track of our current state */
93#define W9966_STATE_PDEV 0x01 93#define W9966_STATE_PDEV 0x01
94#define W9966_STATE_CLAIMED 0x02 94#define W9966_STATE_CLAIMED 0x02
95#define W9966_STATE_VDEV 0x04 95#define W9966_STATE_VDEV 0x04
@@ -105,8 +105,8 @@ struct w9966_dev {
105 unsigned char dev_state; 105 unsigned char dev_state;
106 unsigned char i2c_state; 106 unsigned char i2c_state;
107 unsigned short ppmode; 107 unsigned short ppmode;
108 struct parport* pport; 108 struct parport *pport;
109 struct pardevice* pdev; 109 struct pardevice *pdev;
110 struct video_device vdev; 110 struct video_device vdev;
111 unsigned short width; 111 unsigned short width;
112 unsigned short height; 112 unsigned short height;
@@ -127,15 +127,15 @@ MODULE_LICENSE("GPL");
127 127
128 128
129#ifdef MODULE 129#ifdef MODULE
130static const char* pardev[] = {[0 ... W9966_MAXCAMS] = ""}; 130static const char *pardev[] = {[0 ... W9966_MAXCAMS] = ""};
131#else 131#else
132static const char* pardev[] = {[0 ... W9966_MAXCAMS] = "aggressive"}; 132static const char *pardev[] = {[0 ... W9966_MAXCAMS] = "aggressive"};
133#endif 133#endif
134module_param_array(pardev, charp, NULL, 0); 134module_param_array(pardev, charp, NULL, 0);
135MODULE_PARM_DESC(pardev, "pardev: where to search for\n\ 135MODULE_PARM_DESC(pardev, "pardev: where to search for\n"
136\teach camera. 'aggressive' means brute-force search.\n\ 136 "\teach camera. 'aggressive' means brute-force search.\n"
137\tEg: >pardev=parport3,aggressive,parport2,parport1< would assign\n\ 137 "\tEg: >pardev=parport3,aggressive,parport2,parport1< would assign\n"
138\tcam 1 to parport3 and search every parport for cam 2 etc..."); 138 "\tcam 1 to parport3 and search every parport for cam 2 etc...");
139 139
140static int parmode; 140static int parmode;
141module_param(parmode, int, 0); 141module_param(parmode, int, 0);
@@ -154,31 +154,31 @@ static struct w9966_dev w9966_cams[W9966_MAXCAMS];
154 * Private function declares 154 * Private function declares
155 */ 155 */
156 156
157static inline void w9966_setState(struct w9966_dev* cam, int mask, int val); 157static inline void w9966_setState(struct w9966_dev *cam, int mask, int val);
158static inline int w9966_getState(struct w9966_dev* cam, int mask, int val); 158static inline int w9966_getState(struct w9966_dev *cam, int mask, int val);
159static inline void w9966_pdev_claim(struct w9966_dev *vdev); 159static inline void w9966_pdev_claim(struct w9966_dev *vdev);
160static inline void w9966_pdev_release(struct w9966_dev *vdev); 160static inline void w9966_pdev_release(struct w9966_dev *vdev);
161 161
162static int w9966_rReg(struct w9966_dev* cam, int reg); 162static int w9966_rReg(struct w9966_dev *cam, int reg);
163static int w9966_wReg(struct w9966_dev* cam, int reg, int data); 163static int w9966_wReg(struct w9966_dev *cam, int reg, int data);
164#if 0 164#if 0
165static int w9966_rReg_i2c(struct w9966_dev* cam, int reg); 165static int w9966_rReg_i2c(struct w9966_dev *cam, int reg);
166#endif 166#endif
167static int w9966_wReg_i2c(struct w9966_dev* cam, int reg, int data); 167static int w9966_wReg_i2c(struct w9966_dev *cam, int reg, int data);
168static int w9966_findlen(int near, int size, int maxlen); 168static int w9966_findlen(int near, int size, int maxlen);
169static int w9966_calcscale(int size, int min, int max, int* beg, int* end, unsigned char* factor); 169static int w9966_calcscale(int size, int min, int max, int *beg, int *end, unsigned char *factor);
170static int w9966_setup(struct w9966_dev* cam, int x1, int y1, int x2, int y2, int w, int h); 170static int w9966_setup(struct w9966_dev *cam, int x1, int y1, int x2, int y2, int w, int h);
171 171
172static int w9966_init(struct w9966_dev* cam, struct parport* port); 172static int w9966_init(struct w9966_dev *cam, struct parport* port);
173static void w9966_term(struct w9966_dev* cam); 173static void w9966_term(struct w9966_dev *cam);
174 174
175static inline void w9966_i2c_setsda(struct w9966_dev* cam, int state); 175static inline void w9966_i2c_setsda(struct w9966_dev *cam, int state);
176static inline int w9966_i2c_setscl(struct w9966_dev* cam, int state); 176static inline int w9966_i2c_setscl(struct w9966_dev *cam, int state);
177static inline int w9966_i2c_getsda(struct w9966_dev* cam); 177static inline int w9966_i2c_getsda(struct w9966_dev *cam);
178static inline int w9966_i2c_getscl(struct w9966_dev* cam); 178static inline int w9966_i2c_getscl(struct w9966_dev *cam);
179static int w9966_i2c_wbyte(struct w9966_dev* cam, int data); 179static int w9966_i2c_wbyte(struct w9966_dev *cam, int data);
180#if 0 180#if 0
181static int w9966_i2c_rbyte(struct w9966_dev* cam); 181static int w9966_i2c_rbyte(struct w9966_dev *cam);
182#endif 182#endif
183 183
184static long w9966_v4l_ioctl(struct file *file, 184static long w9966_v4l_ioctl(struct file *file,
@@ -219,20 +219,20 @@ static struct video_device w9966_template = {
219 */ 219 */
220 220
221 221
222// Set camera phase flags, so we know what to uninit when terminating 222/* Set camera phase flags, so we know what to uninit when terminating */
223static inline void w9966_setState(struct w9966_dev* cam, int mask, int val) 223static inline void w9966_setState(struct w9966_dev *cam, int mask, int val)
224{ 224{
225 cam->dev_state = (cam->dev_state & ~mask) ^ val; 225 cam->dev_state = (cam->dev_state & ~mask) ^ val;
226} 226}
227 227
228// Get camera phase flags 228/* Get camera phase flags */
229static inline int w9966_getState(struct w9966_dev* cam, int mask, int val) 229static inline int w9966_getState(struct w9966_dev *cam, int mask, int val)
230{ 230{
231 return ((cam->dev_state & mask) == val); 231 return ((cam->dev_state & mask) == val);
232} 232}
233 233
234// Claim parport for ourself 234/* Claim parport for ourself */
235static inline void w9966_pdev_claim(struct w9966_dev* cam) 235static inline void w9966_pdev_claim(struct w9966_dev *cam)
236{ 236{
237 if (w9966_getState(cam, W9966_STATE_CLAIMED, W9966_STATE_CLAIMED)) 237 if (w9966_getState(cam, W9966_STATE_CLAIMED, W9966_STATE_CLAIMED))
238 return; 238 return;
@@ -240,8 +240,8 @@ static inline void w9966_pdev_claim(struct w9966_dev* cam)
240 w9966_setState(cam, W9966_STATE_CLAIMED, W9966_STATE_CLAIMED); 240 w9966_setState(cam, W9966_STATE_CLAIMED, W9966_STATE_CLAIMED);
241} 241}
242 242
243// Release parport for others to use 243/* Release parport for others to use */
244static inline void w9966_pdev_release(struct w9966_dev* cam) 244static inline void w9966_pdev_release(struct w9966_dev *cam)
245{ 245{
246 if (w9966_getState(cam, W9966_STATE_CLAIMED, 0)) 246 if (w9966_getState(cam, W9966_STATE_CLAIMED, 0))
247 return; 247 return;
@@ -249,12 +249,12 @@ static inline void w9966_pdev_release(struct w9966_dev* cam)
249 w9966_setState(cam, W9966_STATE_CLAIMED, 0); 249 w9966_setState(cam, W9966_STATE_CLAIMED, 0);
250} 250}
251 251
252// Read register from W9966 interface-chip 252/* Read register from W9966 interface-chip
253// Expects a claimed pdev 253 Expects a claimed pdev
254// -1 on error, else register data (byte) 254 -1 on error, else register data (byte) */
255static int w9966_rReg(struct w9966_dev* cam, int reg) 255static int w9966_rReg(struct w9966_dev *cam, int reg)
256{ 256{
257 // ECP, read, regtransfer, REG, REG, REG, REG, REG 257 /* ECP, read, regtransfer, REG, REG, REG, REG, REG */
258 const unsigned char addr = 0x80 | (reg & 0x1f); 258 const unsigned char addr = 0x80 | (reg & 0x1f);
259 unsigned char val; 259 unsigned char val;
260 260
@@ -270,12 +270,12 @@ static int w9966_rReg(struct w9966_dev* cam, int reg)
270 return val; 270 return val;
271} 271}
272 272
273// Write register to W9966 interface-chip 273/* Write register to W9966 interface-chip
274// Expects a claimed pdev 274 Expects a claimed pdev
275// -1 on error 275 -1 on error */
276static int w9966_wReg(struct w9966_dev* cam, int reg, int data) 276static int w9966_wReg(struct w9966_dev *cam, int reg, int data)
277{ 277{
278 // ECP, write, regtransfer, REG, REG, REG, REG, REG 278 /* ECP, write, regtransfer, REG, REG, REG, REG, REG */
279 const unsigned char addr = 0xc0 | (reg & 0x1f); 279 const unsigned char addr = 0xc0 | (reg & 0x1f);
280 const unsigned char val = data; 280 const unsigned char val = data;
281 281
@@ -291,11 +291,11 @@ static int w9966_wReg(struct w9966_dev* cam, int reg, int data)
291 return 0; 291 return 0;
292} 292}
293 293
294// Initialize camera device. Setup all internal flags, set a 294/* Initialize camera device. Setup all internal flags, set a
295// default video mode, setup ccd-chip, register v4l device etc.. 295 default video mode, setup ccd-chip, register v4l device etc..
296// Also used for 'probing' of hardware. 296 Also used for 'probing' of hardware.
297// -1 on error 297 -1 on error */
298static int w9966_init(struct w9966_dev* cam, struct parport* port) 298static int w9966_init(struct w9966_dev *cam, struct parport* port)
299{ 299{
300 if (cam->dev_state != 0) 300 if (cam->dev_state != 0)
301 return -1; 301 return -1;
@@ -306,10 +306,9 @@ static int w9966_init(struct w9966_dev* cam, struct parport* port)
306 cam->color = 64; 306 cam->color = 64;
307 cam->hue = 0; 307 cam->hue = 0;
308 308
309// Select requested transfer mode 309/* Select requested transfer mode */
310 switch(parmode) 310 switch (parmode) {
311 { 311 default: /* Auto-detect (priority: hw-ecp, hw-epp, sw-ecp) */
312 default: // Auto-detect (priority: hw-ecp, hw-epp, sw-ecp)
313 case 0: 312 case 0:
314 if (port->modes & PARPORT_MODE_ECP) 313 if (port->modes & PARPORT_MODE_ECP)
315 cam->ppmode = IEEE1284_MODE_ECP; 314 cam->ppmode = IEEE1284_MODE_ECP;
@@ -318,15 +317,15 @@ static int w9966_init(struct w9966_dev* cam, struct parport* port)
318 else 317 else
319 cam->ppmode = IEEE1284_MODE_ECP; 318 cam->ppmode = IEEE1284_MODE_ECP;
320 break; 319 break;
321 case 1: // hw- or sw-ecp 320 case 1: /* hw- or sw-ecp */
322 cam->ppmode = IEEE1284_MODE_ECP; 321 cam->ppmode = IEEE1284_MODE_ECP;
323 break; 322 break;
324 case 2: // hw- or sw-epp 323 case 2: /* hw- or sw-epp */
325 cam->ppmode = IEEE1284_MODE_EPP; 324 cam->ppmode = IEEE1284_MODE_EPP;
326 break; 325 break;
327 } 326 }
328 327
329// Tell the parport driver that we exists 328/* Tell the parport driver that we exists */
330 cam->pdev = parport_register_device(port, "w9966", NULL, NULL, NULL, 0, NULL); 329 cam->pdev = parport_register_device(port, "w9966", NULL, NULL, NULL, 0, NULL);
331 if (cam->pdev == NULL) { 330 if (cam->pdev == NULL) {
332 DPRINTF("parport_register_device() failed\n"); 331 DPRINTF("parport_register_device() failed\n");
@@ -336,7 +335,7 @@ static int w9966_init(struct w9966_dev* cam, struct parport* port)
336 335
337 w9966_pdev_claim(cam); 336 w9966_pdev_claim(cam);
338 337
339// Setup a default capture mode 338/* Setup a default capture mode */
340 if (w9966_setup(cam, 0, 0, 1023, 1023, 200, 160) != 0) { 339 if (w9966_setup(cam, 0, 0, 1023, 1023, 200, 160) != 0) {
341 DPRINTF("w9966_setup() failed.\n"); 340 DPRINTF("w9966_setup() failed.\n");
342 return -1; 341 return -1;
@@ -344,7 +343,7 @@ static int w9966_init(struct w9966_dev* cam, struct parport* port)
344 343
345 w9966_pdev_release(cam); 344 w9966_pdev_release(cam);
346 345
347// Fill in the video_device struct and register us to v4l 346/* Fill in the video_device struct and register us to v4l */
348 memcpy(&cam->vdev, &w9966_template, sizeof(struct video_device)); 347 memcpy(&cam->vdev, &w9966_template, sizeof(struct video_device));
349 video_set_drvdata(&cam->vdev, cam); 348 video_set_drvdata(&cam->vdev, cam);
350 349
@@ -353,32 +352,30 @@ static int w9966_init(struct w9966_dev* cam, struct parport* port)
353 352
354 w9966_setState(cam, W9966_STATE_VDEV, W9966_STATE_VDEV); 353 w9966_setState(cam, W9966_STATE_VDEV, W9966_STATE_VDEV);
355 354
356 // All ok 355 /* All ok */
357 printk( 356 printk(KERN_INFO "w9966cf: Found and initialized a webcam on %s.\n",
358 "w9966cf: Found and initialized a webcam on %s.\n", 357 cam->pport->name);
359 cam->pport->name
360 );
361 return 0; 358 return 0;
362} 359}
363 360
364 361
365// Terminate everything gracefully 362/* Terminate everything gracefully */
366static void w9966_term(struct w9966_dev* cam) 363static void w9966_term(struct w9966_dev *cam)
367{ 364{
368// Unregister from v4l 365/* Unregister from v4l */
369 if (w9966_getState(cam, W9966_STATE_VDEV, W9966_STATE_VDEV)) { 366 if (w9966_getState(cam, W9966_STATE_VDEV, W9966_STATE_VDEV)) {
370 video_unregister_device(&cam->vdev); 367 video_unregister_device(&cam->vdev);
371 w9966_setState(cam, W9966_STATE_VDEV, 0); 368 w9966_setState(cam, W9966_STATE_VDEV, 0);
372 } 369 }
373 370
374// Terminate from IEEE1284 mode and release pdev block 371/* Terminate from IEEE1284 mode and release pdev block */
375 if (w9966_getState(cam, W9966_STATE_PDEV, W9966_STATE_PDEV)) { 372 if (w9966_getState(cam, W9966_STATE_PDEV, W9966_STATE_PDEV)) {
376 w9966_pdev_claim(cam); 373 w9966_pdev_claim(cam);
377 parport_negotiate(cam->pport, IEEE1284_MODE_COMPAT); 374 parport_negotiate(cam->pport, IEEE1284_MODE_COMPAT);
378 w9966_pdev_release(cam); 375 w9966_pdev_release(cam);
379 } 376 }
380 377
381// Unregister from parport 378/* Unregister from parport */
382 if (w9966_getState(cam, W9966_STATE_PDEV, W9966_STATE_PDEV)) { 379 if (w9966_getState(cam, W9966_STATE_PDEV, W9966_STATE_PDEV)) {
383 parport_unregister_device(cam->pdev); 380 parport_unregister_device(cam->pdev);
384 w9966_setState(cam, W9966_STATE_PDEV, 0); 381 w9966_setState(cam, W9966_STATE_PDEV, 0);
@@ -386,24 +383,23 @@ static void w9966_term(struct w9966_dev* cam)
386} 383}
387 384
388 385
389// Find a good length for capture window (used both for W and H) 386/* Find a good length for capture window (used both for W and H)
390// A bit ugly but pretty functional. The capture length 387 A bit ugly but pretty functional. The capture length
391// have to match the downscale 388 have to match the downscale */
392static int w9966_findlen(int near, int size, int maxlen) 389static int w9966_findlen(int near, int size, int maxlen)
393{ 390{
394 int bestlen = size; 391 int bestlen = size;
395 int besterr = abs(near - bestlen); 392 int besterr = abs(near - bestlen);
396 int len; 393 int len;
397 394
398 for(len = size+1;len < maxlen;len++) 395 for (len = size + 1; len < maxlen; len++) {
399 {
400 int err; 396 int err;
401 if ( ((64*size) %len) != 0) 397 if (((64 * size) % len) != 0)
402 continue; 398 continue;
403 399
404 err = abs(near - len); 400 err = abs(near - len);
405 401
406 // Only continue as long as we keep getting better values 402 /* Only continue as long as we keep getting better values */
407 if (err > besterr) 403 if (err > besterr)
408 break; 404 break;
409 405
@@ -414,32 +410,32 @@ static int w9966_findlen(int near, int size, int maxlen)
414 return bestlen; 410 return bestlen;
415} 411}
416 412
417// Modify capture window (if necessary) 413/* Modify capture window (if necessary)
418// and calculate downscaling 414 and calculate downscaling
419// Return -1 on error 415 Return -1 on error */
420static int w9966_calcscale(int size, int min, int max, int* beg, int* end, unsigned char* factor) 416static int w9966_calcscale(int size, int min, int max, int *beg, int *end, unsigned char *factor)
421{ 417{
422 int maxlen = max - min; 418 int maxlen = max - min;
423 int len = *end - *beg + 1; 419 int len = *end - *beg + 1;
424 int newlen = w9966_findlen(len, size, maxlen); 420 int newlen = w9966_findlen(len, size, maxlen);
425 int err = newlen - len; 421 int err = newlen - len;
426 422
427 // Check for bad format 423 /* Check for bad format */
428 if (newlen > maxlen || newlen < size) 424 if (newlen > maxlen || newlen < size)
429 return -1; 425 return -1;
430 426
431 // Set factor (6 bit fixed) 427 /* Set factor (6 bit fixed) */
432 *factor = (64*size) / newlen; 428 *factor = (64 * size) / newlen;
433 if (*factor == 64) 429 if (*factor == 64)
434 *factor = 0x00; // downscale is disabled 430 *factor = 0x00; /* downscale is disabled */
435 else 431 else
436 *factor |= 0x80; // set downscale-enable bit 432 *factor |= 0x80; /* set downscale-enable bit */
437 433
438 // Modify old beginning and end 434 /* Modify old beginning and end */
439 *beg -= err / 2; 435 *beg -= err / 2;
440 *end += err - (err / 2); 436 *end += err - (err / 2);
441 437
442 // Move window if outside borders 438 /* Move window if outside borders */
443 if (*beg < min) { 439 if (*beg < min) {
444 *end += min - *beg; 440 *end += min - *beg;
445 *beg += min - *beg; 441 *beg += min - *beg;
@@ -452,10 +448,10 @@ static int w9966_calcscale(int size, int min, int max, int* beg, int* end, unsig
452 return 0; 448 return 0;
453} 449}
454 450
455// Setup the cameras capture window etc. 451/* Setup the cameras capture window etc.
456// Expects a claimed pdev 452 Expects a claimed pdev
457// return -1 on error 453 return -1 on error */
458static int w9966_setup(struct w9966_dev* cam, int x1, int y1, int x2, int y2, int w, int h) 454static int w9966_setup(struct w9966_dev *cam, int x1, int y1, int x2, int y2, int w, int h)
459{ 455{
460 unsigned int i; 456 unsigned int i;
461 unsigned int enh_s, enh_e; 457 unsigned int enh_s, enh_e;
@@ -469,84 +465,84 @@ static int w9966_setup(struct w9966_dev* cam, int x1, int y1, int x2, int y2, in
469 }; 465 };
470 466
471 467
472 if (w*h*2 > W9966_SRAMSIZE) 468 if (w * h * 2 > W9966_SRAMSIZE) {
473 {
474 DPRINTF("capture window exceeds SRAM size!.\n"); 469 DPRINTF("capture window exceeds SRAM size!.\n");
475 w = 200; h = 160; // Pick default values 470 w = 200; h = 160; /* Pick default values */
476 } 471 }
477 472
478 w &= ~0x1; 473 w &= ~0x1;
479 if (w < 2) w = 2; 474 if (w < 2)
480 if (h < 1) h = 1; 475 w = 2;
481 if (w > W9966_WND_MAX_W) w = W9966_WND_MAX_W; 476 if (h < 1)
482 if (h > W9966_WND_MAX_H) h = W9966_WND_MAX_H; 477 h = 1;
478 if (w > W9966_WND_MAX_W)
479 w = W9966_WND_MAX_W;
480 if (h > W9966_WND_MAX_H)
481 h = W9966_WND_MAX_H;
483 482
484 cam->width = w; 483 cam->width = w;
485 cam->height = h; 484 cam->height = h;
486 485
487 enh_s = 0; 486 enh_s = 0;
488 enh_e = w*h*2; 487 enh_e = w * h * 2;
489 488
490// Modify capture window if necessary and calculate downscaling 489/* Modify capture window if necessary and calculate downscaling */
491 if ( 490 if (w9966_calcscale(w, W9966_WND_MIN_X, W9966_WND_MAX_X, &x1, &x2, &scale_x) != 0 ||
492 w9966_calcscale(w, W9966_WND_MIN_X, W9966_WND_MAX_X, &x1, &x2, &scale_x) != 0 || 491 w9966_calcscale(h, W9966_WND_MIN_Y, W9966_WND_MAX_Y, &y1, &y2, &scale_y) != 0)
493 w9966_calcscale(h, W9966_WND_MIN_Y, W9966_WND_MAX_Y, &y1, &y2, &scale_y) != 0 492 return -1;
494 ) return -1; 493
495 494 DPRINTF("%dx%d, x: %d<->%d, y: %d<->%d, sx: %d/64, sy: %d/64.\n",
496 DPRINTF( 495 w, h, x1, x2, y1, y2, scale_x & ~0x80, scale_y & ~0x80);
497 "%dx%d, x: %d<->%d, y: %d<->%d, sx: %d/64, sy: %d/64.\n", 496
498 w, h, x1, x2, y1, y2, scale_x&~0x80, scale_y&~0x80 497/* Setup registers */
499 ); 498 regs[0x00] = 0x00; /* Set normal operation */
500 499 regs[0x01] = 0x18; /* Capture mode */
501// Setup registers 500 regs[0x02] = scale_y; /* V-scaling */
502 regs[0x00] = 0x00; // Set normal operation 501 regs[0x03] = scale_x; /* H-scaling */
503 regs[0x01] = 0x18; // Capture mode 502
504 regs[0x02] = scale_y; // V-scaling 503 /* Capture window */
505 regs[0x03] = scale_x; // H-scaling 504 regs[0x04] = (x1 & 0x0ff); /* X-start (8 low bits) */
506 505 regs[0x05] = (x1 & 0x300)>>8; /* X-start (2 high bits) */
507 // Capture window 506 regs[0x06] = (y1 & 0x0ff); /* Y-start (8 low bits) */
508 regs[0x04] = (x1 & 0x0ff); // X-start (8 low bits) 507 regs[0x07] = (y1 & 0x300)>>8; /* Y-start (2 high bits) */
509 regs[0x05] = (x1 & 0x300)>>8; // X-start (2 high bits) 508 regs[0x08] = (x2 & 0x0ff); /* X-end (8 low bits) */
510 regs[0x06] = (y1 & 0x0ff); // Y-start (8 low bits) 509 regs[0x09] = (x2 & 0x300)>>8; /* X-end (2 high bits) */
511 regs[0x07] = (y1 & 0x300)>>8; // Y-start (2 high bits) 510 regs[0x0a] = (y2 & 0x0ff); /* Y-end (8 low bits) */
512 regs[0x08] = (x2 & 0x0ff); // X-end (8 low bits) 511
513 regs[0x09] = (x2 & 0x300)>>8; // X-end (2 high bits) 512 regs[0x0c] = W9966_SRAMID; /* SRAM-banks (1x 128kb) */
514 regs[0x0a] = (y2 & 0x0ff); // Y-end (8 low bits) 513
515 514 /* Enhancement layer */
516 regs[0x0c] = W9966_SRAMID; // SRAM-banks (1x 128kb) 515 regs[0x0d] = (enh_s & 0x000ff); /* Enh. start (0-7) */
517 516 regs[0x0e] = (enh_s & 0x0ff00) >> 8; /* Enh. start (8-15) */
518 // Enhancement layer 517 regs[0x0f] = (enh_s & 0x70000) >> 16; /* Enh. start (16-17/18??) */
519 regs[0x0d] = (enh_s& 0x000ff); // Enh. start (0-7) 518 regs[0x10] = (enh_e & 0x000ff); /* Enh. end (0-7) */
520 regs[0x0e] = (enh_s& 0x0ff00)>>8; // Enh. start (8-15) 519 regs[0x11] = (enh_e & 0x0ff00) >> 8; /* Enh. end (8-15) */
521 regs[0x0f] = (enh_s& 0x70000)>>16; // Enh. start (16-17/18??) 520 regs[0x12] = (enh_e & 0x70000) >> 16; /* Enh. end (16-17/18??) */
522 regs[0x10] = (enh_e& 0x000ff); // Enh. end (0-7) 521
523 regs[0x11] = (enh_e& 0x0ff00)>>8; // Enh. end (8-15) 522 /* Misc */
524 regs[0x12] = (enh_e& 0x70000)>>16; // Enh. end (16-17/18??) 523 regs[0x13] = 0x40; /* VEE control (raw 4:2:2) */
525 524 regs[0x17] = 0x00; /* ??? */
526 // Misc 525 regs[0x18] = cam->i2c_state = 0x00; /* Serial bus */
527 regs[0x13] = 0x40; // VEE control (raw 4:2:2) 526 regs[0x19] = 0xff; /* I/O port direction control */
528 regs[0x17] = 0x00; // ??? 527 regs[0x1a] = 0xff; /* I/O port data register */
529 regs[0x18] = cam->i2c_state = 0x00; // Serial bus 528 regs[0x1b] = 0x10; /* ??? */
530 regs[0x19] = 0xff; // I/O port direction control 529
531 regs[0x1a] = 0xff; // I/O port data register 530 /* SAA7111 chip settings */
532 regs[0x1b] = 0x10; // ???
533
534 // SAA7111 chip settings
535 saa7111_regs[0x0a] = cam->brightness; 531 saa7111_regs[0x0a] = cam->brightness;
536 saa7111_regs[0x0b] = cam->contrast; 532 saa7111_regs[0x0b] = cam->contrast;
537 saa7111_regs[0x0c] = cam->color; 533 saa7111_regs[0x0c] = cam->color;
538 saa7111_regs[0x0d] = cam->hue; 534 saa7111_regs[0x0d] = cam->hue;
539 535
540// Reset (ECP-fifo & serial-bus) 536/* Reset (ECP-fifo & serial-bus) */
541 if (w9966_wReg(cam, 0x00, 0x03) == -1) 537 if (w9966_wReg(cam, 0x00, 0x03) == -1)
542 return -1; 538 return -1;
543 539
544// Write regs to w9966cf chip 540/* Write regs to w9966cf chip */
545 for (i = 0; i < 0x1c; i++) 541 for (i = 0; i < 0x1c; i++)
546 if (w9966_wReg(cam, i, regs[i]) == -1) 542 if (w9966_wReg(cam, i, regs[i]) == -1)
547 return -1; 543 return -1;
548 544
549// Write regs to saa7111 chip 545/* Write regs to saa7111 chip */
550 for (i = 0; i < 0x20; i++) 546 for (i = 0; i < 0x20; i++)
551 if (w9966_wReg_i2c(cam, i, saa7111_regs[i]) == -1) 547 if (w9966_wReg_i2c(cam, i, saa7111_regs[i]) == -1)
552 return -1; 548 return -1;
@@ -558,9 +554,9 @@ static int w9966_setup(struct w9966_dev* cam, int x1, int y1, int x2, int y2, in
558 * Ugly and primitive i2c protocol functions 554 * Ugly and primitive i2c protocol functions
559 */ 555 */
560 556
561// Sets the data line on the i2c bus. 557/* Sets the data line on the i2c bus.
562// Expects a claimed pdev. 558 Expects a claimed pdev. */
563static inline void w9966_i2c_setsda(struct w9966_dev* cam, int state) 559static inline void w9966_i2c_setsda(struct w9966_dev *cam, int state)
564{ 560{
565 if (state) 561 if (state)
566 cam->i2c_state |= W9966_I2C_W_DATA; 562 cam->i2c_state |= W9966_I2C_W_DATA;
@@ -571,17 +567,17 @@ static inline void w9966_i2c_setsda(struct w9966_dev* cam, int state)
571 udelay(5); 567 udelay(5);
572} 568}
573 569
574// Get peripheral clock line 570/* Get peripheral clock line
575// Expects a claimed pdev. 571 Expects a claimed pdev. */
576static inline int w9966_i2c_getscl(struct w9966_dev* cam) 572static inline int w9966_i2c_getscl(struct w9966_dev *cam)
577{ 573{
578 const unsigned char state = w9966_rReg(cam, 0x18); 574 const unsigned char state = w9966_rReg(cam, 0x18);
579 return ((state & W9966_I2C_R_CLOCK) > 0); 575 return ((state & W9966_I2C_R_CLOCK) > 0);
580} 576}
581 577
582// Sets the clock line on the i2c bus. 578/* Sets the clock line on the i2c bus.
583// Expects a claimed pdev. -1 on error 579 Expects a claimed pdev. -1 on error */
584static inline int w9966_i2c_setscl(struct w9966_dev* cam, int state) 580static inline int w9966_i2c_setscl(struct w9966_dev *cam, int state)
585{ 581{
586 unsigned long timeout; 582 unsigned long timeout;
587 583
@@ -593,7 +589,7 @@ static inline int w9966_i2c_setscl(struct w9966_dev* cam, int state)
593 w9966_wReg(cam, 0x18, cam->i2c_state); 589 w9966_wReg(cam, 0x18, cam->i2c_state);
594 udelay(5); 590 udelay(5);
595 591
596 // we go to high, we also expect the peripheral to ack. 592 /* we go to high, we also expect the peripheral to ack. */
597 if (state) { 593 if (state) {
598 timeout = jiffies + 100; 594 timeout = jiffies + 100;
599 while (!w9966_i2c_getscl(cam)) { 595 while (!w9966_i2c_getscl(cam)) {
@@ -604,21 +600,21 @@ static inline int w9966_i2c_setscl(struct w9966_dev* cam, int state)
604 return 0; 600 return 0;
605} 601}
606 602
607// Get peripheral data line 603/* Get peripheral data line
608// Expects a claimed pdev. 604 Expects a claimed pdev. */
609static inline int w9966_i2c_getsda(struct w9966_dev* cam) 605static inline int w9966_i2c_getsda(struct w9966_dev *cam)
610{ 606{
611 const unsigned char state = w9966_rReg(cam, 0x18); 607 const unsigned char state = w9966_rReg(cam, 0x18);
612 return ((state & W9966_I2C_R_DATA) > 0); 608 return ((state & W9966_I2C_R_DATA) > 0);
613} 609}
614 610
615// Write a byte with ack to the i2c bus. 611/* Write a byte with ack to the i2c bus.
616// Expects a claimed pdev. -1 on error 612 Expects a claimed pdev. -1 on error */
617static int w9966_i2c_wbyte(struct w9966_dev* cam, int data) 613static int w9966_i2c_wbyte(struct w9966_dev *cam, int data)
618{ 614{
619 int i; 615 int i;
620 for (i = 7; i >= 0; i--) 616
621 { 617 for (i = 7; i >= 0; i--) {
622 w9966_i2c_setsda(cam, (data >> i) & 0x01); 618 w9966_i2c_setsda(cam, (data >> i) & 0x01);
623 619
624 if (w9966_i2c_setscl(cam, 1) == -1) 620 if (w9966_i2c_setscl(cam, 1) == -1)
@@ -635,18 +631,17 @@ static int w9966_i2c_wbyte(struct w9966_dev* cam, int data)
635 return 0; 631 return 0;
636} 632}
637 633
638// Read a data byte with ack from the i2c-bus 634/* Read a data byte with ack from the i2c-bus
639// Expects a claimed pdev. -1 on error 635 Expects a claimed pdev. -1 on error */
640#if 0 636#if 0
641static int w9966_i2c_rbyte(struct w9966_dev* cam) 637static int w9966_i2c_rbyte(struct w9966_dev *cam)
642{ 638{
643 unsigned char data = 0x00; 639 unsigned char data = 0x00;
644 int i; 640 int i;
645 641
646 w9966_i2c_setsda(cam, 1); 642 w9966_i2c_setsda(cam, 1);
647 643
648 for (i = 0; i < 8; i++) 644 for (i = 0; i < 8; i++) {
649 {
650 if (w9966_i2c_setscl(cam, 1) == -1) 645 if (w9966_i2c_setscl(cam, 1) == -1)
651 return -1; 646 return -1;
652 data = data << 1; 647 data = data << 1;
@@ -659,20 +654,18 @@ static int w9966_i2c_rbyte(struct w9966_dev* cam)
659} 654}
660#endif 655#endif
661 656
662// Read a register from the i2c device. 657/* Read a register from the i2c device.
663// Expects claimed pdev. -1 on error 658 Expects claimed pdev. -1 on error */
664#if 0 659#if 0
665static int w9966_rReg_i2c(struct w9966_dev* cam, int reg) 660static int w9966_rReg_i2c(struct w9966_dev *cam, int reg)
666{ 661{
667 int data; 662 int data;
668 663
669 w9966_i2c_setsda(cam, 0); 664 w9966_i2c_setsda(cam, 0);
670 w9966_i2c_setscl(cam, 0); 665 w9966_i2c_setscl(cam, 0);
671 666
672 if ( 667 if (w9966_i2c_wbyte(cam, W9966_I2C_W_ID) == -1 ||
673 w9966_i2c_wbyte(cam, W9966_I2C_W_ID) == -1 || 668 w9966_i2c_wbyte(cam, reg) == -1)
674 w9966_i2c_wbyte(cam, reg) == -1
675 )
676 return -1; 669 return -1;
677 670
678 w9966_i2c_setsda(cam, 1); 671 w9966_i2c_setsda(cam, 1);
@@ -681,10 +674,10 @@ static int w9966_rReg_i2c(struct w9966_dev* cam, int reg)
681 w9966_i2c_setsda(cam, 0); 674 w9966_i2c_setsda(cam, 0);
682 w9966_i2c_setscl(cam, 0); 675 w9966_i2c_setscl(cam, 0);
683 676
684 if ( 677 if (w9966_i2c_wbyte(cam, W9966_I2C_R_ID) == -1)
685 w9966_i2c_wbyte(cam, W9966_I2C_R_ID) == -1 || 678 return -1;
686 (data = w9966_i2c_rbyte(cam)) == -1 679 data = w9966_i2c_rbyte(cam);
687 ) 680 if (data == -1)
688 return -1; 681 return -1;
689 682
690 w9966_i2c_setsda(cam, 0); 683 w9966_i2c_setsda(cam, 0);
@@ -697,18 +690,16 @@ static int w9966_rReg_i2c(struct w9966_dev* cam, int reg)
697} 690}
698#endif 691#endif
699 692
700// Write a register to the i2c device. 693/* Write a register to the i2c device.
701// Expects claimed pdev. -1 on error 694 Expects claimed pdev. -1 on error */
702static int w9966_wReg_i2c(struct w9966_dev* cam, int reg, int data) 695static int w9966_wReg_i2c(struct w9966_dev *cam, int reg, int data)
703{ 696{
704 w9966_i2c_setsda(cam, 0); 697 w9966_i2c_setsda(cam, 0);
705 w9966_i2c_setscl(cam, 0); 698 w9966_i2c_setscl(cam, 0);
706 699
707 if ( 700 if (w9966_i2c_wbyte(cam, W9966_I2C_W_ID) == -1 ||
708 w9966_i2c_wbyte(cam, W9966_I2C_W_ID) == -1 || 701 w9966_i2c_wbyte(cam, reg) == -1 ||
709 w9966_i2c_wbyte(cam, reg) == -1 || 702 w9966_i2c_wbyte(cam, data) == -1)
710 w9966_i2c_wbyte(cam, data) == -1
711 )
712 return -1; 703 return -1;
713 704
714 w9966_i2c_setsda(cam, 0); 705 w9966_i2c_setsda(cam, 0);
@@ -728,8 +719,7 @@ static long w9966_v4l_do_ioctl(struct file *file, unsigned int cmd, void *arg)
728{ 719{
729 struct w9966_dev *cam = video_drvdata(file); 720 struct w9966_dev *cam = video_drvdata(file);
730 721
731 switch(cmd) 722 switch (cmd) {
732 {
733 case VIDIOCGCAP: 723 case VIDIOCGCAP:
734 { 724 {
735 static struct video_capability vcap = { 725 static struct video_capability vcap = {
@@ -748,9 +738,9 @@ static long w9966_v4l_do_ioctl(struct file *file, unsigned int cmd, void *arg)
748 case VIDIOCGCHAN: 738 case VIDIOCGCHAN:
749 { 739 {
750 struct video_channel *vch = arg; 740 struct video_channel *vch = arg;
751 if(vch->channel != 0) // We only support one channel (#0) 741 if (vch->channel != 0) /* We only support one channel (#0) */
752 return -EINVAL; 742 return -EINVAL;
753 memset(vch,0,sizeof(*vch)); 743 memset(vch, 0, sizeof(*vch));
754 strcpy(vch->name, "CCD-input"); 744 strcpy(vch->name, "CCD-input");
755 vch->type = VIDEO_TYPE_CAMERA; 745 vch->type = VIDEO_TYPE_CAMERA;
756 return 0; 746 return 0;
@@ -758,14 +748,14 @@ static long w9966_v4l_do_ioctl(struct file *file, unsigned int cmd, void *arg)
758 case VIDIOCSCHAN: 748 case VIDIOCSCHAN:
759 { 749 {
760 struct video_channel *vch = arg; 750 struct video_channel *vch = arg;
761 if(vch->channel != 0) 751 if (vch->channel != 0)
762 return -EINVAL; 752 return -EINVAL;
763 return 0; 753 return 0;
764 } 754 }
765 case VIDIOCGTUNER: 755 case VIDIOCGTUNER:
766 { 756 {
767 struct video_tuner *vtune = arg; 757 struct video_tuner *vtune = arg;
768 if(vtune->tuner != 0) 758 if (vtune->tuner != 0)
769 return -EINVAL; 759 return -EINVAL;
770 strcpy(vtune->name, "no tuner"); 760 strcpy(vtune->name, "no tuner");
771 vtune->rangelow = 0; 761 vtune->rangelow = 0;
@@ -787,12 +777,12 @@ static long w9966_v4l_do_ioctl(struct file *file, unsigned int cmd, void *arg)
787 case VIDIOCGPICT: 777 case VIDIOCGPICT:
788 { 778 {
789 struct video_picture vpic = { 779 struct video_picture vpic = {
790 cam->brightness << 8, // brightness 780 cam->brightness << 8, /* brightness */
791 (cam->hue + 128) << 8, // hue 781 (cam->hue + 128) << 8, /* hue */
792 cam->color << 9, // color 782 cam->color << 9, /* color */
793 cam->contrast << 9, // contrast 783 cam->contrast << 9, /* contrast */
794 0x8000, // whiteness 784 0x8000, /* whiteness */
795 16, VIDEO_PALETTE_YUV422// bpp, palette format 785 16, VIDEO_PALETTE_YUV422/* bpp, palette format */
796 }; 786 };
797 struct video_picture *pic = arg; 787 struct video_picture *pic = arg;
798 *pic = vpic; 788 *pic = vpic;
@@ -838,7 +828,7 @@ static long w9966_v4l_do_ioctl(struct file *file, unsigned int cmd, void *arg)
838 if (vwin->height < 1 || vwin->height > W9966_WND_MAX_H) 828 if (vwin->height < 1 || vwin->height > W9966_WND_MAX_H)
839 return -EINVAL; 829 return -EINVAL;
840 830
841 // Update camera regs 831 /* Update camera regs */
842 w9966_pdev_claim(cam); 832 w9966_pdev_claim(cam);
843 ret = w9966_setup(cam, 0, 0, 1023, 1023, vwin->width, vwin->height); 833 ret = w9966_setup(cam, 0, 0, 1023, 1023, vwin->width, vwin->height);
844 w9966_pdev_release(cam); 834 w9966_pdev_release(cam);
@@ -858,7 +848,7 @@ static long w9966_v4l_do_ioctl(struct file *file, unsigned int cmd, void *arg)
858 vwin->height = cam->height; 848 vwin->height = cam->height;
859 return 0; 849 return 0;
860 } 850 }
861 // Unimplemented 851 /* Unimplemented */
862 case VIDIOCCAPTURE: 852 case VIDIOCCAPTURE:
863 case VIDIOCGFBUF: 853 case VIDIOCGFBUF:
864 case VIDIOCSFBUF: 854 case VIDIOCSFBUF:
@@ -880,31 +870,29 @@ static long w9966_v4l_ioctl(struct file *file,
880 return video_usercopy(file, cmd, arg, w9966_v4l_do_ioctl); 870 return video_usercopy(file, cmd, arg, w9966_v4l_do_ioctl);
881} 871}
882 872
883// Capture data 873/* Capture data */
884static ssize_t w9966_v4l_read(struct file *file, char __user *buf, 874static ssize_t w9966_v4l_read(struct file *file, char __user *buf,
885 size_t count, loff_t *ppos) 875 size_t count, loff_t *ppos)
886{ 876{
887 struct w9966_dev *cam = video_drvdata(file); 877 struct w9966_dev *cam = video_drvdata(file);
888 unsigned char addr = 0xa0; // ECP, read, CCD-transfer, 00000 878 unsigned char addr = 0xa0; /* ECP, read, CCD-transfer, 00000 */
889 unsigned char __user *dest = (unsigned char __user *)buf; 879 unsigned char __user *dest = (unsigned char __user *)buf;
890 unsigned long dleft = count; 880 unsigned long dleft = count;
891 unsigned char *tbuf; 881 unsigned char *tbuf;
892 882
893 // Why would anyone want more than this?? 883 /* Why would anyone want more than this?? */
894 if (count > cam->width * cam->height * 2) 884 if (count > cam->width * cam->height * 2)
895 return -EINVAL; 885 return -EINVAL;
896 886
897 w9966_pdev_claim(cam); 887 w9966_pdev_claim(cam);
898 w9966_wReg(cam, 0x00, 0x02); // Reset ECP-FIFO buffer 888 w9966_wReg(cam, 0x00, 0x02); /* Reset ECP-FIFO buffer */
899 w9966_wReg(cam, 0x00, 0x00); // Return to normal operation 889 w9966_wReg(cam, 0x00, 0x00); /* Return to normal operation */
900 w9966_wReg(cam, 0x01, 0x98); // Enable capture 890 w9966_wReg(cam, 0x01, 0x98); /* Enable capture */
901 891
902 // write special capture-addr and negotiate into data transfer 892 /* write special capture-addr and negotiate into data transfer */
903 if ( 893 if ((parport_negotiate(cam->pport, cam->ppmode|IEEE1284_ADDR) != 0) ||
904 (parport_negotiate(cam->pport, cam->ppmode|IEEE1284_ADDR) != 0 )|| 894 (parport_write(cam->pport, &addr, 1) != 1) ||
905 (parport_write(cam->pport, &addr, 1) != 1 )|| 895 (parport_negotiate(cam->pport, cam->ppmode|IEEE1284_DATA) != 0)) {
906 (parport_negotiate(cam->pport, cam->ppmode|IEEE1284_DATA) != 0 )
907 ) {
908 w9966_pdev_release(cam); 896 w9966_pdev_release(cam);
909 return -EFAULT; 897 return -EFAULT;
910 } 898 }
@@ -915,8 +903,7 @@ static ssize_t w9966_v4l_read(struct file *file, char __user *buf,
915 goto out; 903 goto out;
916 } 904 }
917 905
918 while(dleft > 0) 906 while (dleft > 0) {
919 {
920 unsigned long tsize = (dleft > W9966_RBUFFER) ? W9966_RBUFFER : dleft; 907 unsigned long tsize = (dleft > W9966_RBUFFER) ? W9966_RBUFFER : dleft;
921 908
922 if (parport_read(cam->pport, tbuf, tsize) < tsize) { 909 if (parport_read(cam->pport, tbuf, tsize) < tsize) {
@@ -931,7 +918,7 @@ static ssize_t w9966_v4l_read(struct file *file, char __user *buf,
931 dleft -= tsize; 918 dleft -= tsize;
932 } 919 }
933 920
934 w9966_wReg(cam, 0x01, 0x18); // Disable capture 921 w9966_wReg(cam, 0x01, 0x18); /* Disable capture */
935 922
936out: 923out:
937 kfree(tbuf); 924 kfree(tbuf);
@@ -941,33 +928,30 @@ out:
941} 928}
942 929
943 930
944// Called once for every parport on init 931/* Called once for every parport on init */
945static void w9966_attach(struct parport *port) 932static void w9966_attach(struct parport *port)
946{ 933{
947 int i; 934 int i;
948 935
949 for (i = 0; i < W9966_MAXCAMS; i++) 936 for (i = 0; i < W9966_MAXCAMS; i++) {
950 { 937 if (w9966_cams[i].dev_state != 0) /* Cam is already assigned */
951 if (w9966_cams[i].dev_state != 0) // Cam is already assigned
952 continue; 938 continue;
953 if ( 939 if (strcmp(pardev[i], "aggressive") == 0 || strcmp(pardev[i], port->name) == 0) {
954 strcmp(pardev[i], "aggressive") == 0 ||
955 strcmp(pardev[i], port->name) == 0
956 ) {
957 if (w9966_init(&w9966_cams[i], port) != 0) 940 if (w9966_init(&w9966_cams[i], port) != 0)
958 w9966_term(&w9966_cams[i]); 941 w9966_term(&w9966_cams[i]);
959 break; // return 942 break; /* return */
960 } 943 }
961 } 944 }
962} 945}
963 946
964// Called once for every parport on termination 947/* Called once for every parport on termination */
965static void w9966_detach(struct parport *port) 948static void w9966_detach(struct parport *port)
966{ 949{
967 int i; 950 int i;
951
968 for (i = 0; i < W9966_MAXCAMS; i++) 952 for (i = 0; i < W9966_MAXCAMS; i++)
969 if (w9966_cams[i].dev_state != 0 && w9966_cams[i].pport == port) 953 if (w9966_cams[i].dev_state != 0 && w9966_cams[i].pport == port)
970 w9966_term(&w9966_cams[i]); 954 w9966_term(&w9966_cams[i]);
971} 955}
972 956
973 957
@@ -977,17 +961,18 @@ static struct parport_driver w9966_ppd = {
977 .detach = w9966_detach, 961 .detach = w9966_detach,
978}; 962};
979 963
980// Module entry point 964/* Module entry point */
981static int __init w9966_mod_init(void) 965static int __init w9966_mod_init(void)
982{ 966{
983 int i; 967 int i;
968
984 for (i = 0; i < W9966_MAXCAMS; i++) 969 for (i = 0; i < W9966_MAXCAMS; i++)
985 w9966_cams[i].dev_state = 0; 970 w9966_cams[i].dev_state = 0;
986 971
987 return parport_register_driver(&w9966_ppd); 972 return parport_register_driver(&w9966_ppd);
988} 973}
989 974
990// Module cleanup 975/* Module cleanup */
991static void __exit w9966_mod_term(void) 976static void __exit w9966_mod_term(void)
992{ 977{
993 parport_unregister_driver(&w9966_ppd); 978 parport_unregister_driver(&w9966_ppd);
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-20 09:36:12 -0400