static int broadsheet_init(void)
{
// Preflight the Broadsheet controller. Note that, if any of the
// the preflight checks fail, the preflighting process will
// automatically put us into bootstrapping mode.
//
if ( BS_BOOTSTRAPPED() || !FB_INITED() )
broadsheet_preflight();
// Don't talk to the display, don't do power management, and don't
// remember our state on reboot when we're being bootstrapped.
//
if ( BS_BOOTSTRAPPED() )
{
broadsheet_hal_ops.hal_update_display = NULL;
broadsheet_hal_ops.hal_update_area = NULL;
broadsheet_hal_ops.hal_set_power_level = NULL;
broadsheet_hal_ops.hal_get_power_level = NULL;
broadsheet_hal_ops.hal_reboot_hook = NULL;
}
return ( einkfb_hal_ops_init(&broadsheet_hal_ops) );
}
static int fslepdc_hal_init(void)
{
// set up the waveform module parameter
if (fslepdc_wf_to_use == NULL) {
fslepdc_wf_to_use = kmalloc(EINK_WF_PATH_LEN, GFP_KERNEL);
memset(fslepdc_wf_to_use, 0, EINK_WF_PATH_LEN);
}
// Preflight what's needed to bring up the FSLEPDC and the display, regardless
// of whether we're bootstrapped or not.
//
// Note: If some of the hardware doesn't come up, we can keep around the other
// hardware as the I/O is independent of each other. The exit routine
// will still make the appropriates call to exit any of the hardware
// that did come up.
//
// If there's no PMIC available, there will be no video. So, there's no reason
// to do anything but go into bootstrapping mode in that case.
//
if ( !fslepdc_pmic_init() )
BOOTSTRAP_FSLEPDC();
// Verify that the epdc driver is available
//
if ( mxc_epdc_power_state(NULL) == MXC_EDPC_POWER_STATE_UNINITED )
BOOTSTRAP_FSLEPDC();
// If there's no panel flash, a panel may or may not be available.
//
if ( !einkwf_panel_flash_present() )
{
// We'll be using the built-in waveform in this case...
//
strcpy(fslepdc_wf_to_use, EINK_WF_USE_BUILTIN_WAVEFORM);
// ...so there's no reason to return that. And, since we have no idea
// what the panel is, we can't possibly accept a waveform to use.
//
fslepdc_hal_ops.hal_waveform_file_io = NULL;
}
// If we're in bootstrapping mode (either by choice or circumstance), don't allow any
// display updates or power management.
//
if ( FSLEPDC_BOOTSTRAPPED() )
{
fslepdc_hal_ops.hal_update_display = NULL;
fslepdc_hal_ops.hal_update_area = NULL;
fslepdc_hal_ops.hal_set_power_level = NULL;
fslepdc_hal_ops.hal_get_power_level = NULL;
fslepdc_hal_ops.hal_set_display_orientation = NULL;
fslepdc_hal_ops.hal_get_display_orientation = NULL;
// Also, disable other I/O as appropriate.
//
if ( !fslepdc_pmic_present() )
fslepdc_hal_ops.hal_temperature_io = NULL;
if ( !einkwf_panel_flash_present() )
{
fslepdc_hal_ops.hal_waveform_version_io = NULL;
fslepdc_hal_ops.hal_waveform_file_io = NULL;
}
}
return ( einkfb_hal_ops_init(&fslepdc_hal_ops) );
}