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/* -*- pse-c -*-
*-----------------------------------------------------------------------------
* Filename: igd_pi.c
* $Revision: 1.5 $
*-----------------------------------------------------------------------------
* Copyright © 2002-2010, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
*-----------------------------------------------------------------------------
* Description:
* Callback functions to give to port drivers. All functions are provided
* to port driver as callback functions. Only port driver should call
* these functions.
*-----------------------------------------------------------------------------
*/
#include <context.h>
#include <memory.h>
#include <sched.h>
/* #include <igd_pi.h> */
#include <igd_debug.h>
#include <pi.h>
#include <pd.h>
/*!
* @addtogroup display_group
* @{
*/
/*!
* Function to register with main driver.
*
* @param handle
* @param pd_driver
*
* @return pi_pd_register()
*/
int igd_pd_register(void *handle, void *pd_driver)
{
return pi_pd_register(pd_driver);
} /* igd_pd_register */
/*!
* Function to allocate memory
*
* @param handle
* @param pd_driver
*
* @return void
*/
void *igd_pd_malloc(unsigned long size)
{
return OS_ALLOC(size);
} /* end igd_pd_malloc */
/*!
* Function to set the memory
*
* @param address
* @param c
* @param size
*
* @return void
*/
void *igd_pd_memset(void *address, int c, unsigned long size)
{
return OS_MEMSET(address, c, size);
} /* end igd_pd_memset */
/*!
* Function to copy block of memory
*
* @param dst
* @param src
* @param size
*
* @return void
*/
void *igd_pd_memcpy(void *dst, void *src, unsigned long size)
{
return OS_MEMCPY(dst, src, size);
} /* end igd_pd_memcpy */
/* Functions to free memory */
void igd_pd_free(void *ptr)
{
OS_FREE(ptr);
} /* end igd_pd_free */
/*!
* Function to sleep in micro seconds. This can be called with millisecond
* ranges.
*
* @param usec
*
* @return void
*/
void igd_pd_usleep(unsigned long usec)
{
if (usec <= 1000) {
OS_SLEEP(usec);
} else {
os_alarm_t alarm = OS_SET_ALARM((usec+999)/1000);
do {
OS_SCHEDULE();
} while (!OS_TEST_ALARM(alarm));
}
} /* end igd_pd_usleep() */
/*!
* Function to do a string copy
*
* @param dest
* @param src
*
* @return dest
*/
char *igd_pd_strcpy(char *dest, char const *src)
{
int i = 0;
/* This can be optimized by assigning 32 bit quantities instead
* of 8 bit quantities. This requires knowing the length first then
* move the quantities. For now, this is OK. */
while (src[i] != '\0') {
dest[i] = src[i];
i++;
}
dest[i] = '\0';
return (dest);
} /* end igd_pd_strcpy() */
/*!
* Function to check value of an attribute
*
* @param curr
* @param in
*
* @return PD_SUCCESS on success
* @return PD_ERR_NULL_PTR,PD_ERR_INVALID_ATTR, or PD_ERR_INCORR_ATTR_VALUE
* on failure
*/
int igd_pd_check_attr(pd_attr_t *curr, pd_attr_t *in)
{
if (!curr || !in) {
return PD_ERR_NULL_PTR;
}
if (curr->id != in->id) {
return PD_ERR_INVALID_ATTR;
}
switch (curr->type) {
case PD_ATTR_TYPE_RANGE:
if ((in->current_value < RATTR(curr)->min) ||
(in->current_value > RATTR(curr)->max)) {
return PD_ERR_INCORR_ATTR_VALUE;
}
break;
case PD_ATTR_TYPE_LIST:
if ((in->current_value < 1) ||
(in->current_value > LHATTR(curr)->num_entries)) {
return PD_ERR_INCORR_ATTR_VALUE;
}
break;
case PD_ATTR_TYPE_BOOL:
if ((in->current_value != TRUE) &&
(in->current_value != FALSE)) {
return PD_ERR_INCORR_ATTR_VALUE;
}
break;
default:
return PD_ERR_INVALID_ATTR;
}
return PD_SUCCESS;
} /* end igd_pd_check_attr() */
/*!
* This function searches for the requested attr_id in the attribute list
* and returns the pointer.
*
* In case of LIST attribute, it will return the proper list entry.
*
* @param attr_list
* @param num_attrs
* @param attr_id
* @param flag
*
* @return attr_list on success
* @return NULL on failure
*/
pd_attr_t *igd_pd_get_attr(pd_attr_t *attr_list, unsigned long num_attrs,
unsigned long attr_id, unsigned long flag)
{
unsigned long i;
if (!attr_list) {
return NULL;
}
for (i = 0; i < num_attrs; i++) {
if (attr_list[i].id == attr_id) {
if (attr_list[i].type == PD_ATTR_TYPE_LIST) {
if (flag == PD_GET_ATTR_LIST_ENTRY) {
return (&(attr_list[i+attr_list[i].current_value]));
} else {
return (&(attr_list[i]));
}
}
return (&(attr_list[i]));
}
}
return NULL;
} /* end igd_pd_get_attr() */
/*!
* Common mode filter algorithm for all port drivers
*
* @param context
* @param ilist
* @param olist
* @param dvo
* @param display
*
* @return pd_filter_timings()
*/
int igd_pd_filter_timings(
void *context,
pd_timing_t *ilist,
pd_timing_t **olist,
pd_dvo_info_t *dvo,
pd_display_info_t *display)
{
return pd_filter_timings(context, ilist, olist, dvo, display);
}
igd_debug_t *igd_pd_get_igd_debug( void )
{
return emgd_debug;
}
/*----------------------------------------------------------------------------
* File Revision History
* $Id: igd_pi.c,v 1.5 2010/07/23 16:54:50 bpaauwe Exp $
* $Source: /nfs/fm/proj/eia/cvsroot/koheo/linux/egd_drm/emgd/display/pi/cmn/igd_pi.c,v $
*----------------------------------------------------------------------------
*/
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