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/*
* 1394-Based Digital Camera Control Library
*
* Low-level register access functions
*
* Written by Damien Douxchamps <ddouxchamps@users.sf.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <inttypes.h>
#include "control.h"
#include "internal.h"
#include "offsets.h"
#include "register.h"
#include "utils.h"
#include "config.h"
/* Note: debug modes can be very verbose. */
/* To debug config rom structure: */
//#define DC1394_DEBUG_TAGGED_REGISTER_ACCESS
#define FEATURE_TO_ABS_VALUE_OFFSET(feature, offset) \
{ \
if ( (feature > DC1394_FEATURE_MAX) || (feature < DC1394_FEATURE_MIN) ) \
{ \
return DC1394_FAILURE; \
} \
else if (feature < DC1394_FEATURE_ZOOM) \
{ \
offset= REG_CAMERA_FEATURE_ABS_HI_BASE; \
feature-= DC1394_FEATURE_MIN; \
} \
else \
{ \
offset= REG_CAMERA_FEATURE_ABS_LO_BASE; \
feature-= DC1394_FEATURE_ZOOM; \
\
if (feature >= DC1394_FEATURE_CAPTURE_SIZE) \
{ \
feature+= 12; \
} \
\
} \
\
offset+= feature * 0x04U; \
}
dc1394error_t
dc1394_get_registers (dc1394camera_t *camera, uint64_t offset,
uint32_t *value, uint32_t num_regs)
{
dc1394camera_priv_t * cp = DC1394_CAMERA_PRIV (camera);
if (camera == NULL)
return DC1394_CAMERA_NOT_INITIALIZED;
return cp->platform->dispatch->camera_read (cp->pcam, offset, value,
num_regs);
}
dc1394error_t
dc1394_set_registers (dc1394camera_t *camera, uint64_t offset,
const uint32_t *value, uint32_t num_regs)
{
dc1394camera_priv_t * cp = DC1394_CAMERA_PRIV (camera);
if (camera == NULL)
return DC1394_CAMERA_NOT_INITIALIZED;
return cp->platform->dispatch->camera_write (cp->pcam, offset, value,
num_regs);
}
/********************************************************************************/
/* Get/Set Command Registers */
/********************************************************************************/
dc1394error_t
dc1394_get_control_registers (dc1394camera_t *camera, uint64_t offset,
uint32_t *value, uint32_t num_regs)
{
return dc1394_get_registers (camera,
camera->command_registers_base + offset, value, num_regs);
}
dc1394error_t
dc1394_set_control_registers (dc1394camera_t *camera, uint64_t offset,
const uint32_t *value, uint32_t num_regs)
{
return dc1394_set_registers (camera,
camera->command_registers_base + offset, value, num_regs);
}
/********************************************************************************/
/* Get/Set Advanced Features Registers */
/********************************************************************************/
dc1394error_t
dc1394_get_adv_control_registers (dc1394camera_t *camera, uint64_t offset,
uint32_t *value, uint32_t num_regs)
{
return dc1394_get_registers (camera,
camera->advanced_features_csr + offset, value, num_regs);
}
dc1394error_t
dc1394_set_adv_control_registers (dc1394camera_t *camera, uint64_t offset,
const uint32_t *value, uint32_t num_regs)
{
return dc1394_set_registers (camera,
camera->advanced_features_csr + offset, value, num_regs);
}
/********************************************************************************/
/* Get/Set Format_7 Registers */
/********************************************************************************/
dc1394error_t
QueryFormat7CSROffset(dc1394camera_t *camera, dc1394video_mode_t mode, uint64_t *offset)
{
int retval;
uint32_t temp;
if (camera == NULL) {
return DC1394_CAMERA_NOT_INITIALIZED;
}
if (!dc1394_is_video_mode_scalable(mode))
return DC1394_INVALID_VIDEO_FORMAT;
retval=dc1394_get_control_register(camera, REG_CAMERA_V_CSR_INQ_BASE + ((mode - DC1394_VIDEO_MODE_FORMAT7_MIN) * 0x04U), &temp);
*offset=temp*4;
return retval;
}
dc1394error_t
dc1394_get_format7_register(dc1394camera_t *camera, unsigned int mode, uint64_t offset, uint32_t *value)
{
if (camera == NULL)
return DC1394_CAMERA_NOT_INITIALIZED;
if (!dc1394_is_video_mode_scalable(mode))
return DC1394_INVALID_VIDEO_FORMAT;
if (camera->format7_csr[mode-DC1394_VIDEO_MODE_FORMAT7_MIN]==0) {
if (QueryFormat7CSROffset(camera, mode,
&camera->format7_csr[mode-DC1394_VIDEO_MODE_FORMAT7_MIN])
!= DC1394_SUCCESS) {
return DC1394_FAILURE;
}
}
return dc1394_get_registers (camera,
camera->format7_csr[mode-DC1394_VIDEO_MODE_FORMAT7_MIN]+offset,
value, 1);
}
dc1394error_t
dc1394_set_format7_register(dc1394camera_t *camera, unsigned int mode, uint64_t offset, uint32_t value)
{
if (camera == NULL)
return DC1394_CAMERA_NOT_INITIALIZED;
if (!dc1394_is_video_mode_scalable(mode))
return DC1394_INVALID_VIDEO_FORMAT;;
if (camera->format7_csr[mode-DC1394_VIDEO_MODE_FORMAT7_MIN]==0) {
QueryFormat7CSROffset(camera, mode,
&camera->format7_csr[mode-DC1394_VIDEO_MODE_FORMAT7_MIN]);
}
return dc1394_set_registers (camera,
camera->format7_csr[mode-DC1394_VIDEO_MODE_FORMAT7_MIN]+offset,
&value, 1);
}
/********************************************************************************/
/* Get/Set Absolute Control Registers */
/********************************************************************************/
dc1394error_t
QueryAbsoluteCSROffset(dc1394camera_t *camera, dc1394feature_t feature, uint64_t *offset)
{
int absoffset, retval;
uint32_t quadlet=0;
if (camera == NULL)
return DC1394_CAMERA_NOT_INITIALIZED;
FEATURE_TO_ABS_VALUE_OFFSET(feature, absoffset);
retval=dc1394_get_control_register(camera, absoffset, &quadlet);
*offset=quadlet * 0x04;
return retval;
}
dc1394error_t
dc1394_get_absolute_register(dc1394camera_t *camera, unsigned int feature,
uint64_t offset, uint32_t *value)
{
uint64_t absoffset;
if (camera == NULL)
return DC1394_CAMERA_NOT_INITIALIZED;
QueryAbsoluteCSROffset(camera, feature, &absoffset);
return dc1394_get_registers (camera, absoffset + offset, value, 1);
}
dc1394error_t
dc1394_set_absolute_register(dc1394camera_t *camera, unsigned int feature,
uint64_t offset, uint32_t value)
{
uint64_t absoffset;
if (camera == NULL)
return DC1394_CAMERA_NOT_INITIALIZED;
QueryAbsoluteCSROffset(camera, feature, &absoffset);
return dc1394_set_registers (camera, absoffset + offset, &value, 1);
}
/********************************************************************************/
/* Get/Set PIO Feature Registers */
/********************************************************************************/
dc1394error_t
dc1394_get_PIO_register(dc1394camera_t *camera, uint64_t offset, uint32_t *value)
{
return dc1394_get_registers (camera, camera->PIO_control_csr + offset,
value, 1);
}
dc1394error_t
dc1394_set_PIO_register(dc1394camera_t *camera, uint64_t offset, uint32_t value)
{
return dc1394_set_registers (camera, camera->PIO_control_csr + offset,
&value, 1);
}
/********************************************************************************/
/* Get/Set SIO Feature Registers */
/********************************************************************************/
dc1394error_t
dc1394_get_SIO_register(dc1394camera_t *camera, uint64_t offset, uint32_t *value)
{
return dc1394_get_registers (camera, camera->SIO_control_csr + offset,
value, 1);
}
dc1394error_t
dc1394_set_SIO_register(dc1394camera_t *camera, uint64_t offset, uint32_t value)
{
return dc1394_set_registers (camera, camera->SIO_control_csr + offset,
&value, 1);
}
/********************************************************************************/
/* Get/Set Strobe Feature Registers */
/********************************************************************************/
dc1394error_t
dc1394_get_strobe_register(dc1394camera_t *camera, uint64_t offset,
uint32_t *value)
{
return dc1394_get_registers (camera, camera->strobe_control_csr + offset,
value, 1);
}
dc1394error_t
dc1394_set_strobe_register(dc1394camera_t *camera, uint64_t offset,
uint32_t value)
{
return dc1394_set_registers (camera, camera->strobe_control_csr + offset,
&value, 1);
}
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