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/*
* Allwinner SoCs display driver.
*
* Copyright (C) 2016 Allwinner.
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include "include.h"
#include "disp_device.h"
static LIST_HEAD(device_list);
s32 disp_device_set_manager(struct disp_device *dispdev,
struct disp_manager *mgr)
{
if ((dispdev == NULL) || (mgr == NULL)) {
DE_WRN("NULL hdl!\n");
return DIS_FAIL;
}
DE_INF("device %d, mgr %d\n", dispdev->disp, mgr->disp);
dispdev->manager = mgr;
mgr->device = dispdev;
return DIS_SUCCESS;
}
s32 disp_device_unset_manager(struct disp_device *dispdev)
{
if (dispdev == NULL) {
DE_WRN("NULL hdl!\n");
return DIS_FAIL;
}
if (dispdev->manager)
dispdev->manager->device = NULL;
dispdev->manager = NULL;
return DIS_SUCCESS;
}
s32 disp_device_get_resolution(struct disp_device *dispdev, u32 *xres,
u32 *yres)
{
if (dispdev == NULL) {
DE_WRN("NULL hdl!\n");
return DIS_FAIL;
}
*xres = dispdev->timings.x_res;
*yres = dispdev->timings.y_res;
return 0;
}
s32 disp_device_get_timings(struct disp_device *dispdev,
struct disp_video_timings *timings)
{
if (dispdev == NULL) {
DE_WRN("NULL hdl!\n");
return DIS_FAIL;
}
if (timings)
memcpy(timings, &dispdev->timings,
sizeof(struct disp_video_timings));
return 0;
}
s32 disp_device_is_interlace(struct disp_device *dispdev)
{
if (dispdev == NULL) {
DE_WRN("NULL hdl!\n");
return DIS_FAIL;
}
return dispdev->timings.b_interlace;
}
s32 disp_device_get_status(struct disp_device *dispdev)
{
if (dispdev == NULL) {
DE_WRN("NULL hdl!\n");
return 0;
}
return disp_al_device_get_status(dispdev->hwdev_index);
}
bool disp_device_is_in_safe_period(struct disp_device *dispdev)
{
int cur_line;
int start_delay;
bool ret = true;
if (dispdev == NULL) {
DE_WRN("NULL hdl!\n");
goto exit;
}
start_delay = disp_al_device_get_start_delay(dispdev->hwdev_index);
cur_line = disp_al_device_get_cur_line(dispdev->hwdev_index);
if (cur_line >= start_delay)
ret = false;
exit:
return ret;
}
void disp_device_show_builtin_patten(struct disp_device *dispdev, u32 patten)
{
if (dispdev)
disp_al_show_builtin_patten(dispdev->hwdev_index, patten);
}
u32 disp_device_usec_before_vblank(struct disp_device *dispdev)
{
int cur_line;
int start_delay;
u32 usec = 0;
struct disp_video_timings *timings;
u32 usec_per_line;
unsigned long long n_temp, base_temp;
u32 mod;
if (dispdev == NULL) {
DE_WRN("NULL hdl!\n");
goto exit;
}
start_delay = disp_al_device_get_start_delay(dispdev->hwdev_index);
cur_line = disp_al_device_get_cur_line(dispdev->hwdev_index);
if (cur_line > (start_delay - 4)) {
timings = &dispdev->timings;
n_temp = (unsigned long long)timings->hor_total_time *
(unsigned long long)(1000000);
base_temp = (unsigned long long)timings->pixel_clk;
/*mod = (u32)do_div(n_temp, base_temp);*/
n_temp = (u32)n_temp/base_temp;
mod = (u32)n_temp%base_temp;
usec_per_line = (u32)n_temp;
usec = (timings->ver_total_time - cur_line + 1) * usec_per_line;
}
exit:
return usec;
}
/* get free device */
struct disp_device *disp_device_get(int disp, enum disp_output_type output_type)
{
struct disp_device *dispdev = NULL;
list_for_each_entry(dispdev, &device_list, list) {
if ((dispdev->type == output_type) && (dispdev->disp == disp)
&& (dispdev->manager == NULL)) {
return dispdev;
}
}
return NULL;
}
/**
* @name :disp_device_get_from_priv
* @brief :get disp_device by comparing pointer of priv_data
* @param[IN] :priv_data:pointer of private date of disp_device
* @return :pointer of disp_device; NULL if not found
*/
struct disp_device *disp_device_get_from_priv(void *priv_data)
{
struct disp_device *dispdev = NULL;
list_for_each_entry(dispdev, &device_list, list) {
if (dispdev->priv_data == priv_data)
return dispdev;
}
return NULL;
}
struct disp_device *disp_device_find(int disp,
enum disp_output_type output_type)
{
struct disp_device *dispdev = NULL;
list_for_each_entry(dispdev, &device_list, list) {
if ((dispdev->type == output_type) && (dispdev->disp == disp))
return dispdev;
}
return NULL;
}
struct list_head *disp_device_get_list_head(void)
{
return &device_list;
}
s32 disp_device_register(struct disp_device *dispdev)
{
list_add_tail(&dispdev->list, &device_list);
return 0;
}
s32 disp_device_unregister(struct disp_device *dispdev)
{
list_del(&dispdev->list);
return 0;
}
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