#include <linux/videodev.h>
#include <linux/list.h>
#include <linux/smp_lock.h>
+#include <linux/mutex.h>
struct cpia_camera_ops
{
/* open sets privdata to point to structure for this camera.
- * Returns negative value on error, otherwise 0.
+ * Returns negative value on error, otherwise 0.
*/
int (*open)(void *privdata);
-
+
/* Registers callback function cb to be called with cbdata
* when an image is ready. If cb is NULL, only single image grabs
* should be used. cb should immediately call streamRead to read
* otherwise 0.
*/
int (*registerCallback)(void *privdata, void (*cb)(void *cbdata),
- void *cbdata);
-
+ void *cbdata);
+
/* transferCmd sends commands to the camera. command MUST point to
* an 8 byte buffer in kernel space. data can be NULL if no extra
* data is needed. The size of the data is given by the last 2
* Returns negative value on error, otherwise 0.
*/
int (*streamStart)(void *privdata);
-
+
/* streamStop terminates stream capture mode.
* Returns negative value on error, otherwise 0.
*/
int (*streamStop)(void *privdata);
-
+
/* streamRead reads a frame from the camera. buffer points to a
- * buffer large enough to hold a complete frame in kernel space.
- * noblock indicates if this should be a non blocking read.
+ * buffer large enough to hold a complete frame in kernel space.
+ * noblock indicates if this should be a non blocking read.
* Returns the number of bytes read, or negative value on error.
- */
+ */
int (*streamRead)(void *privdata, u8 *buffer, int noblock);
-
+
/* close disables the device until open() is called again.
* Returns negative value on error, otherwise 0.
*/
int (*close)(void *privdata);
-
+
/* If wait_for_stream_ready is non-zero, wait until the streamState
* is STREAM_READY before calling streamRead.
*/
int wait_for_stream_ready;
- /*
+ /*
* Used to maintain lowlevel module usage counts
*/
struct module *owner;
u8 videoSize; /* CIF/QCIF */
u8 subSample;
u8 yuvOrder;
- } format;
- struct { /* Intel QX3 specific data */
- u8 qx3_detected; /* a QX3 is present */
- u8 toplight; /* top light lit , R/W */
- u8 bottomlight; /* bottom light lit, R/W */
- u8 button; /* snapshot button pressed (R/O) */
- u8 cradled; /* microscope is in cradle (R/O) */
- } qx3;
+ } format;
+ struct { /* Intel QX3 specific data */
+ u8 qx3_detected; /* a QX3 is present */
+ u8 toplight; /* top light lit , R/W */
+ u8 bottomlight; /* bottom light lit, R/W */
+ u8 button; /* snapshot button pressed (R/O) */
+ u8 cradled; /* microscope is in cradle (R/O) */
+ } qx3;
struct {
u8 colStart; /* skip first 8*colStart pixels */
u8 colEnd; /* finish at 8*colEnd pixels */
struct cam_data {
struct list_head cam_data_list;
- struct semaphore busy_lock; /* guard against SMP multithreading */
+ struct mutex busy_lock; /* guard against SMP multithreading */
struct cpia_camera_ops *ops; /* lowlevel driver operations */
void *lowlevel_data; /* private data for lowlevel driver */
u8 *raw_image; /* buffer for raw image data */
struct cpia_frame decompressed_frame;
- /* buffer to hold decompressed frame */
- int image_size; /* sizeof last decompressed image */
+ /* buffer to hold decompressed frame */
+ int image_size; /* sizeof last decompressed image */
int open_count; /* # of process that have camera open */
/* camera status */
u8 mainsFreq; /* for flicker control */
/* proc interface */
- struct semaphore param_lock; /* params lock for this camera */
+ struct mutex param_lock; /* params lock for this camera */
struct cam_params params; /* camera settings */
struct proc_dir_entry *proc_entry; /* /proc/cpia/videoX */
-
+
/* v4l */
int video_size; /* VIDEO_SIZE_ */
volatile enum v4l_camstates camstate; /* v4l layer status */
/* mmap interface */
int curframe; /* the current frame to grab into */
u8 *frame_buf; /* frame buffer data */
- struct cpia_frame frame[FRAME_NUM];
+ struct cpia_frame frame[FRAME_NUM];
/* FRAME_NUM-buffering, so we need a array */
int first_frame;
#define DEB_BYTE(p)\
DBG("%1d %1d %1d %1d %1d %1d %1d %1d \n",\
(p)&0x80?1:0, (p)&0x40?1:0, (p)&0x20?1:0, (p)&0x10?1:0,\
- (p)&0x08?1:0, (p)&0x04?1:0, (p)&0x02?1:0, (p)&0x01?1:0);
+ (p)&0x08?1:0, (p)&0x04?1:0, (p)&0x02?1:0, (p)&0x01?1:0);
#endif /* __KERNEL__ */
git://git.onelab.eu / linux-2.6.git / blobdiff