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path: root/drivers/gpu/drm/emgd/emgd/state/power/cmn/igd_pwr.c
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Diffstat (limited to 'drivers/gpu/drm/emgd/emgd/state/power/cmn/igd_pwr.c')
-rw-r--r--drivers/gpu/drm/emgd/emgd/state/power/cmn/igd_pwr.c290
1 files changed, 0 insertions, 290 deletions
diff --git a/drivers/gpu/drm/emgd/emgd/state/power/cmn/igd_pwr.c b/drivers/gpu/drm/emgd/emgd/state/power/cmn/igd_pwr.c
deleted file mode 100644
index e26f823e5283..000000000000
--- a/drivers/gpu/drm/emgd/emgd/state/power/cmn/igd_pwr.c
+++ /dev/null
@@ -1,290 +0,0 @@
-/* -*- pse-c -*-
- *-----------------------------------------------------------------------------
- * Filename: igd_pwr.c
- * $Revision: 1.7 $
- *-----------------------------------------------------------------------------
- * 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:
- *
- *-----------------------------------------------------------------------------
- */
-
-#define MODULE_NAME hal.power
-
-#include <config.h>
-#include <io.h>
-
-#include <igd_init.h>
-#include <igd_errno.h>
-#include <igd_pwr.h>
-#include <igd_mode.h>
-
-#include <module_init.h>
-#include <mode.h>
-#include <dsp.h>
-#include <intelpci.h>
-#include <dispatch.h>
-#include "pwr_dispatch.h" /* contains the power dispatch functions */
-
-/*!
- * @addtogroup state_group
- * @{
- */
-
-static dispatch_table_t pwr_dispatch_list[] = {
-#ifdef CONFIG_PLB
- {PCI_DEVICE_ID_VGA_PLB, &pwr_dispatch_plb},
-#endif
-#ifdef CONFIG_TNC
- {PCI_DEVICE_ID_VGA_TNC, &pwr_dispatch_plb},
-#endif
- {0, NULL}
-};
-
-typedef struct _power_context {
- pwr_dispatch_t *dispatch;
- void *power_state;
-} power_context_t;
-
-static power_context_t power_context;
-
-static int igd_pwr_query(igd_driver_h driver_handle, unsigned int power_state)
-{ /* igd_pwr_query */
- return power_context.dispatch->pwr_query(power_state);
-} /* igd_pwr_query */
-
-/*!
- * This function alters the power state of the graphics device. This
- * function saves and restores registers as necessary and changes the
- * power states of the mode and overlay module.
- *
- * This function will convert a request for D2 to a request for D1.
- *
- * @param driver_handle driver context
- * @param dwPowerState power state to set the device to.
- *
- * @return < 0 on Error
- * @return 0 on Success
- */
-static int igd_pwr_alter(igd_driver_h driver_handle, unsigned int dwPowerState)
-{ /* igd_pwr_alter */
- unsigned char *mmio;
- int retval = 0;
- igd_context_t *context = (igd_context_t *) driver_handle;
-
- EMGD_DEBUG("in igd_pwr_alter");
-
- EMGD_DEBUG("Power State requested: 0x%x", dwPowerState);
-
- if(context == NULL) {
- EMGD_ERROR("In igd_pwr_alter:-Device context is null");
- return -IGD_ERROR_INVAL;
- }
-
- if(power_context.power_state == NULL) {
- EMGD_DEBUG("In igd_pwr_alter:- Memory not allocated yet."
- " Power Module Not Initialised");
- return -IGD_ERROR_INVAL;
- }
-
- mmio = context->device_context.virt_mmadr;
-
- if(context->device_context.power_state == dwPowerState ) {
- EMGD_DEBUG("Already in the present state");
- return -IGD_ERROR_INVAL;
- }
-
- switch(dwPowerState) {
- case IGD_POWERSTATE_D0:
- /* Do any chipset specific power management */
- retval = power_context.dispatch->pwr_set(context, dwPowerState);
-
- /* restore the registers */
- retval = context->mod_dispatch.reg_restore(context,
- power_context.power_state);
- if (retval) {
- return retval;
- }
-
- /* Officially change the power state after registers are restored */
- context->device_context.power_state = IGD_POWERSTATE_D0;
-
- /* restore power to plane, pipe and port */
- if(context->mod_dispatch.mode_pwr) {
- retval = context->mod_dispatch.mode_pwr(context,
- IGD_POWERSTATE_D0);
- if (retval) {
- return retval;
- }
- }
-
- /* enable overlay */
- if(context->mod_dispatch.overlay_pwr) {
- context->mod_dispatch.overlay_pwr(context, IGD_POWERSTATE_D0);
- }
- break;
-
- case IGD_POWERSTATE_D1:
- case IGD_POWERSTATE_D2:
- /* Standby - ACPI S1 */
-
- if (IGD_POWERSTATE_D2 == dwPowerState) {
- dwPowerState = IGD_POWERSTATE_D1;
- }
-
- /* Turn off the overlay */
- if(context->mod_dispatch.overlay_pwr) {
- context->mod_dispatch.overlay_pwr(context, dwPowerState);
- }
-
- /* save registers */
- retval = context->mod_dispatch.reg_save(context,
- power_context.power_state);
- if (retval) {
- return retval;
- }
-
- /* Change the state of the device to Dx. This is required so the
- * plane/pipe/port all use this. This needs to happen after "reg_save"
- * because igd_sync will timeout if power state is not D0
- */
- context->device_context.power_state = dwPowerState;
-
- if(context->mod_dispatch.mode_pwr) {
- retval = context->mod_dispatch.mode_pwr(context, dwPowerState);
- if (retval) {
- return retval;
- }
- }
-
- /* Do any chipset specific power management */
- retval = power_context.dispatch->pwr_set(context, dwPowerState);
-
- break;
-
- case IGD_POWERSTATE_D3:
- /* Suspend to memory - ACPI S3 */
-
- /* disable overlay */
- if(context->mod_dispatch.overlay_pwr) {
- context->mod_dispatch.overlay_pwr(context, dwPowerState);
- }
-
- /* save registers */
- retval= context->mod_dispatch.reg_save(context,
- power_context.power_state);
- if (retval) {
- return retval;
- }
-
- /* Change the state of the device to Dx. This is required so the
- * plane/pipe/port all use this. This needs to happen after "reg_save"
- * because igd_sync will timeout if power state is not D0
- */
- context->device_context.power_state = dwPowerState;
-
- /* Mode module Power */
- if(context->mod_dispatch.mode_pwr) {
- retval = context->mod_dispatch.mode_pwr(context, dwPowerState);
- if (retval) {
- return retval;
- }
- }
-
-
- /* Do any chipset specific power management */
- retval = power_context.dispatch->pwr_set(context, dwPowerState);
-
- break;
-
- default:
- /* state undefined */
- EMGD_ERROR("In igd_pwr_alter:-Undefined Power State");
- break;
-
- }
-
- return retval;
-} /* igd_pwr_alter */
-
-/*!
- * This function should be called from context manager.
- * To delete the memory allocated ealier.
- *
- * @param context
- *
- * @return void
- */
-static void _pwr_shutdown(igd_context_t *context)
-{
-
- if(power_context.power_state) {
- context->mod_dispatch.reg_free(context, power_context.power_state);
- }
- power_context.power_state = NULL;
- context->device_context.power_state = IGD_POWERSTATE_UNDEFINED;
- return;
-}
-
-/*!
- * This function should only be called only once from context manager .
- * It initializes the power module.
- *
- * @param context
- *
- * @return < 0 on Error
- * @return 0 on Success
- */
-int _pwr_init(igd_context_t *context)
-{ /* _pwr_init */
- EMGD_ASSERT(context, "Null Context", -IGD_ERROR_INVAL);
-
- /* Hook up the IGD dispatch table entires for power */
- context->dispatch.pwr_alter = igd_pwr_alter;
- context->dispatch.pwr_query = igd_pwr_query;
-
- /* Inter-module dispatch */
- context->mod_dispatch.pwr_shutdown = _pwr_shutdown;
-
- power_context.dispatch = (pwr_dispatch_t *)dispatch_acquire(context,
- pwr_dispatch_list);
-
- if(!power_context.dispatch) {
- return -IGD_ERROR_NODEV;
- }
-
- /* Initialize chipset specific default power behavior */
- power_context.dispatch->pwr_init(context);
-
- power_context.power_state = context->mod_dispatch.reg_alloc(context,
- IGD_REG_SAVE_VGA |
- IGD_REG_SAVE_DAC | IGD_REG_SAVE_MMIO | IGD_REG_SAVE_RB |
- IGD_REG_SAVE_MODE | IGD_REG_SAVE_3D );
-
- if(!power_context.power_state) {
- return -IGD_ERROR_NOMEM;
- }
-
- return 0;
-} /* _pwr_init */
-
-/*-----------------------------------------------------------------------------
- * $Id: igd_pwr.c,v 1.7 2010/07/23 16:54:50 bpaauwe Exp $
- * $Source: /nfs/fm/proj/eia/cvsroot/koheo/linux/egd_drm/emgd/state/power/cmn/igd_pwr.c,v $
- *-----------------------------------------------------------------------------
- */
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-06-07 00:05:59 +0000