/*!
* This function is directly exported.
*
* @param driver_handle
* @param dsp
* @param params
*
* @return 0 on success
* @return 1 on failure
*/
int igd_module_init(igd_driver_h driver_handle,
igd_dispatch_t **dsp,
igd_param_t *params)
{
igd_context_t *context = (igd_context_t *)driver_handle;
device_context_t *device;
int ret = 0;
EMGD_TRACE_ENTER;
device = &context->device_context;
context->device_context.power_state = IGD_POWERSTATE_D0;
context->mod_dispatch.init_params = params;
context->dispatch.idle = empty_idle;
context->dispatch.sync = empty_sync;
context->mod_dispatch.in_dih_clone_mode = 0;
context->mod_dispatch.dih_clone_display = 0;
context->mod_dispatch.fb_blend_ovl_override = 0;
/* Intialize IGD Modules */
ret = init_modules(params, context);
if (ret) {
EMGD_ERROR_EXIT("Init Modules Failed");
return ret;
}
OPT_MICRO_VOID_CALL(_init_dispatch(context));
*dsp = &context->dispatch;
EMGD_TRACE_EXIT;
return 0;
}
/*!
* Configure either the primary or secondary display. This means all the
* timings, the framebuffer, the ports, the plane, and the pipe.
*
* The port range could be calculated based on primary or secondary
* display but it seems easier at this point to pass the port range
* in since it is used for all the for loops.
*
* @param driver_handle
* @param display
* @param pt_info
* @param fb_info
* @param dc
* @param p0
* @param pn
* @param flags
*
* @return 0 on success
* @return -IGD_ERROR_INVAL on failure
*/
static int configure_display(
igd_driver_h driver_handle,
igd_display_context_t *display,
igd_display_info_t *pt_info,
igd_framebuffer_info_t *fb_info,
unsigned long dc,
int p0, int pn,
unsigned long flags)
{
igd_context_t *context = (igd_context_t *)driver_handle;
int p;
igd_display_port_t *port;
igd_timing_info_t *timing_info;
unsigned long update_flags;
unsigned short port_number = 0;
int ret;
int seamless = FALSE;
EMGD_TRACE_ENTER;
/* FIXME: Should this be an assert? */
if (display == NULL) {
EMGD_DEBUG("Trying to configure a NULL display");
return 0;
}
EMGD_DEBUG("Configure timings");
for (p = pn; p > p0; p--) {
EMGD_DEBUG("Configure port %d", DC_PORT_NUMBER(dc, p));
if ((port_number = DC_PORT_NUMBER(dc, p))) {
port = context->mod_dispatch.dsp_port_list[port_number];
if (!port) {
EMGD_DEBUG("Port %d not found", port_number);
} else {
/* Put a copy of the timings in the port's structure */
if (pt_info) {
if (port->pt_info == NULL) {
port->pt_info = OS_ALLOC(sizeof(igd_display_info_t));
if (!port->pt_info) {
EMGD_ERROR_EXIT("unable to alloc a pt_info "
"struct in port.");
return -IGD_ERROR_INVAL;
}
}
OS_MEMCPY(port->pt_info, pt_info,
sizeof(igd_display_info_t));
} else {
EMGD_ERROR("No primary timing info!");
}
}
}
}
if(!(pt_info->flags & IGD_DISPLAY_ENABLE)) {
EMGD_ERROR_EXIT("Ptinfo has no IGD_DISPLAY_ENABLE!");
return 0;
}
display->port_number = DC_PORT_NUMBER(dc, (p0 + 1));
/* Set mode */
EMGD_DEBUG("Set mode, using port %ld", display->port_number);
port = PORT(display, display->port_number);
EMGD_DEBUG("Calling matchmode on display");
ret = match_mode(display, port->timing_table, fb_info, pt_info,
&timing_info);
if(ret) {
EMGD_DEBUG("Match Mode for display failed");
EMGD_TRACE_EXIT;
return -IGD_ERROR_INVAL;
}
/* Now b4, we program the timing_info, let's first see if seamless
* option is requested, if it is then
* We need to make sure the incoming dc, timing, framebuffer
* info and etc match. We must respect the FORCE_ALTER flag.
*
* Seamless option buys you a one-time ticket for the seamless
* experience from the firmware to the driver. After the first mode set
* in driver, you don't get it the next time when you alter display.
*
*/
#ifndef CONFIG_MICRO
if(dc && !(flags & IGD_FORCE_ALTER) &&
(mode_context->seamless == TRUE) ) {
/* User wants seamless */
if(mode_context->fw_info != NULL) {
OPT_MICRO_CALL_RET(seamless, query_seamless(dc,
/*(p0/4),*/
PIPE(display)->pipe_num,
timing_info,
fb_info,
0));
EMGD_DEBUG(":Seamless = %s", seamless ?"ON" : "OFF");
mode_context->seamless = FALSE;
/* FIXME: For clone you get called twice. Need to
* Fix that corner case
*/
}
}
#endif
/* In case the seamless is FALSE, we do reset_plane_pipe_ports
* which is supposed to be called in alter_displays anyway.
* But we have to delay it since the user asked for seamless.
* And we don't want to switch-off the display during
* seamless.
* Now we know that even though the user asked for it, we cannot
* support seamless, so we call reset_plane_pipe_ports now.
*/
if(seamless == FALSE) {
/* Reset planes/pipes/ports before doing first alter display */
if (mode_context->first_alter) {
mode_context->dispatch->reset_plane_pipe_ports(
mode_context->context);
mode_context->first_alter = FALSE;
}
}
if(calculate_eld(port, timing_info)){
EMGD_DEBUG("Fail to calculate ELD");
}
/* turn on all ports */
EMGD_DEBUG("turn on displays plane_pipe_ports %d..%d", (p0 + 1), (pn-1));
for (p = (p0 + 1); p <= pn; p++) {
if (DC_PORT_NUMBER(dc, p)) {
port = context->mod_dispatch.dsp_port_list[DC_PORT_NUMBER(dc, p)];
display->allocated = 1;
/* Update mode info for the port */
if (p == (p0 + 1)) {
update_flags = MODE_UPDATE_PLANE | MODE_UPDATE_PIPE |
MODE_UPDATE_PORT;
} else {
update_flags = MODE_UPDATE_PORT;
}
ret = mode_update_plane_pipe_ports(display, DC_PORT_NUMBER(dc, p),
timing_info, fb_info, pt_info, update_flags);
if (ret) {
/*
* This could happen if there was no memory for the
* framebuffer or the FB was an invalid format. The
* first is a too bad failure. The second should have
* been checked by the IAL.
*/
EMGD_ERROR_EXIT("mode_update_plane_pipe_ports returned error "
"%d", ret);
port->pt_info->flags &= ~IGD_DISPLAY_ENABLE;
return ret;
}
/* Program the port registers */
if(seamless == TRUE) {
/* Don't have to program the registers, Since it's
* all updated. Just return 0
*/
ret = 0;
} else {
ret = mode_context->dispatch->program_port(display,
DC_PORT_NUMBER(dc, p), TRUE);
}
if (ret == 0) {
port->inuse = 1;
} else {
port->pt_info->flags &= ~IGD_DISPLAY_ENABLE;
}
}
}
EMGD_DEBUG("done - turn on displays plane_pipe_ports %d", p);
/* Clear the Framebuffer after the planes, pipes and ports are
* disabled and before they are enabled. */
if (flags & IGD_CLEAR_FB) {
OPT_MICRO_VOID_CALL(full_clear_fb(mode_context, fb_info, NULL));
}
/* program the pipe/plane/port if seamless is FALSE */
if(seamless == FALSE) {
EMGD_DEBUG("Seamless is FALSE");
ret = TRUE;
do{
/* turn on pipe */
mode_context->dispatch->program_pipe(display, TRUE);
/* turn on plane */
mode_context->dispatch->program_plane(display, TRUE);
/* turn on port */
for (p = pn; p > p0; p--) {
if (DC_PORT_NUMBER(dc, p)) {
mode_context->dispatch->post_program_port(display,
DC_PORT_NUMBER(dc, p), TRUE);
}
}
/* Check is display working fine */
OPT_MICRO_CALL_RET(ret, mode_context->dispatch->
check_display(display, DC_PORT_NUMBER(dc, p),TRUE));
if(!ret){
/* turn off plane and pipe */
mode_context->dispatch->program_plane(display, FALSE);
mode_context->dispatch->program_pipe(display, FALSE);
}
}while(!ret);
}
#ifndef CONFIG_MICRO
else { /* Seamless is TRUE */
/* Updating the plane registers, does not require us to
* turn-off the pipe and we can still have seamless
* because the display is not turned-off
*/
EMGD_DEBUG(" Seamless is TRUE");
if(mode_context->fw_info->program_plane == 1) {
/* This means we have to update the plane registers
* with the new values.eg. Change in pitch size between
* firmware values and driver values. But we MUST also
* update the palette registers for this to work and
* palette registers are programmed when pipe is programmed.
* This means we program the pipe , followed by the plane.
*/
/* By doing this, we update the palette */
mode_context->dispatch->program_pipe(display, TRUE);
/* update the plane registers */
mode_context->dispatch->program_plane(display, TRUE);
}
}
#endif
EMGD_TRACE_EXIT;
return 0;
}
