mirror of https://gitee.com/openkylin/linux.git
staging: ti dspbridge: add services
Add TI's DSP Bridge driver services code Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com> Signed-off-by: Kanigeri, Hari <h-kanigeri2@ti.com> Signed-off-by: Ameya Palande <ameya.palande@nokia.com> Signed-off-by: Guzman Lugo, Fernando <fernando.lugo@ti.com> Signed-off-by: Hebbar, Shivananda <x0hebbar@ti.com> Signed-off-by: Ramos Falcon, Ernesto <ernesto@ti.com> Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Anna, Suman <s-anna@ti.com> Signed-off-by: Gupta, Ramesh <grgupta@ti.com> Signed-off-by: Gomez Castellanos, Ivan <ivan.gomez@ti.com> Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Signed-off-by: Armando Uribe De Leon <x0095078@ti.com> Signed-off-by: Deepak Chitriki <deepak.chitriki@ti.com> Signed-off-by: Menon, Nishanth <nm@ti.com> Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Omar Ramirez Luna
Greg Kroah-Hartman
parent
7227b671f7
commit
6a88a4fe09
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@ -0,0 +1,253 @@
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/*
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* cfg.c
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*
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* DSP-BIOS Bridge driver support functions for TI OMAP processors.
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*
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* Implementation of platform specific config services.
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*
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* Copyright (C) 2005-2006 Texas Instruments, Inc.
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*
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* This package is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/* ----------------------------------- DSP/BIOS Bridge */
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#include <dspbridge/std.h>
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#include <dspbridge/dbdefs.h>
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/* ----------------------------------- Trace & Debug */
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#include <dspbridge/dbc.h>
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/* ----------------------------------- OS Adaptation Layer */
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/* ----------------------------------- This */
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#include <dspbridge/cfg.h>
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#include <dspbridge/drv.h>
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struct drv_ext {
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struct list_head link;
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char sz_string[MAXREGPATHLENGTH];
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};
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/*
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* ======== cfg_exit ========
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* Purpose:
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* Discontinue usage of the CFG module.
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*/
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void cfg_exit(void)
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{
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/* Do nothing */
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}
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/*
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* ======== cfg_get_auto_start ========
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* Purpose:
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* Retreive the autostart mask, if any, for this board.
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*/
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int cfg_get_auto_start(struct cfg_devnode *dev_node_obj,
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OUT u32 *pdwAutoStart)
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{
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int status = 0;
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u32 dw_buf_size;
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struct drv_data *drv_datap = dev_get_drvdata(bridge);
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dw_buf_size = sizeof(*pdwAutoStart);
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if (!dev_node_obj)
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status = -EFAULT;
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if (!pdwAutoStart || !drv_datap)
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status = -EFAULT;
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if (DSP_SUCCEEDED(status))
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*pdwAutoStart = (drv_datap->base_img) ? 1 : 0;
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DBC_ENSURE((status == 0 &&
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(*pdwAutoStart == 0 || *pdwAutoStart == 1))
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|| status != 0);
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return status;
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}
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/*
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* ======== cfg_get_dev_object ========
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* Purpose:
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* Retrieve the Device Object handle for a given devnode.
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*/
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int cfg_get_dev_object(struct cfg_devnode *dev_node_obj,
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OUT u32 *pdwValue)
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{
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int status = 0;
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u32 dw_buf_size;
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struct drv_data *drv_datap = dev_get_drvdata(bridge);
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if (!drv_datap)
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status = -EPERM;
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if (!dev_node_obj)
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status = -EFAULT;
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if (!pdwValue)
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status = -EFAULT;
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dw_buf_size = sizeof(pdwValue);
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if (DSP_SUCCEEDED(status)) {
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/* check the device string and then store dev object */
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if (!
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(strcmp
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((char *)((struct drv_ext *)dev_node_obj)->sz_string,
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"TIOMAP1510")))
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*pdwValue = (u32)drv_datap->dev_object;
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}
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if (DSP_FAILED(status))
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pr_err("%s: Failed, status 0x%x\n", __func__, status);
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return status;
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}
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/*
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* ======== cfg_get_exec_file ========
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* Purpose:
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* Retreive the default executable, if any, for this board.
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*/
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int cfg_get_exec_file(struct cfg_devnode *dev_node_obj, u32 ul_buf_size,
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OUT char *pstrExecFile)
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{
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int status = 0;
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struct drv_data *drv_datap = dev_get_drvdata(bridge);
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if (!dev_node_obj)
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status = -EFAULT;
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else if (!pstrExecFile || !drv_datap)
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status = -EFAULT;
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if (strlen(drv_datap->base_img) > ul_buf_size)
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status = -EINVAL;
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if (DSP_SUCCEEDED(status) && drv_datap->base_img)
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strcpy(pstrExecFile, drv_datap->base_img);
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if (DSP_FAILED(status))
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pr_err("%s: Failed, status 0x%x\n", __func__, status);
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DBC_ENSURE(((status == 0) &&
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(strlen(pstrExecFile) <= ul_buf_size))
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|| (status != 0));
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return status;
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}
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/*
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* ======== cfg_get_object ========
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* Purpose:
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* Retrieve the Object handle from the Registry
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*/
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int cfg_get_object(OUT u32 *pdwValue, u8 dw_type)
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{
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int status = -EINVAL;
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struct drv_data *drv_datap = dev_get_drvdata(bridge);
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DBC_REQUIRE(pdwValue != NULL);
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if (!drv_datap)
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return -EPERM;
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switch (dw_type) {
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case (REG_DRV_OBJECT):
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if (drv_datap->drv_object) {
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*pdwValue = (u32)drv_datap->drv_object;
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status = 0;
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} else {
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status = -ENODATA;
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}
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break;
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case (REG_MGR_OBJECT):
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if (drv_datap->mgr_object) {
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*pdwValue = (u32)drv_datap->mgr_object;
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status = 0;
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} else {
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status = -ENODATA;
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}
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break;
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default:
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break;
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}
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if (DSP_FAILED(status)) {
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*pdwValue = 0;
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pr_err("%s: Failed, status 0x%x\n", __func__, status);
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}
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DBC_ENSURE((DSP_SUCCEEDED(status) && *pdwValue != 0) ||
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(DSP_FAILED(status) && *pdwValue == 0));
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return status;
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}
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/*
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* ======== cfg_init ========
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* Purpose:
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* Initialize the CFG module's private state.
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*/
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bool cfg_init(void)
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{
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return true;
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}
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/*
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* ======== cfg_set_dev_object ========
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* Purpose:
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* Store the Device Object handle and dev_node pointer for a given devnode.
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*/
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int cfg_set_dev_object(struct cfg_devnode *dev_node_obj, u32 dwValue)
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{
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int status = 0;
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struct drv_data *drv_datap = dev_get_drvdata(bridge);
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if (!drv_datap) {
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pr_err("%s: Failed, status 0x%x\n", __func__, status);
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return -EPERM;
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}
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if (!dev_node_obj)
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status = -EFAULT;
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if (DSP_SUCCEEDED(status)) {
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/* Store the Bridge device object in the Registry */
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if (!(strcmp((char *)dev_node_obj, "TIOMAP1510")))
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drv_datap->dev_object = (void *) dwValue;
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}
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if (DSP_FAILED(status))
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pr_err("%s: Failed, status 0x%x\n", __func__, status);
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return status;
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}
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/*
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* ======== cfg_set_object ========
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* Purpose:
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* Store the Driver Object handle
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*/
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int cfg_set_object(u32 dwValue, u8 dw_type)
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{
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int status = -EINVAL;
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struct drv_data *drv_datap = dev_get_drvdata(bridge);
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if (!drv_datap)
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return -EPERM;
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switch (dw_type) {
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case (REG_DRV_OBJECT):
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drv_datap->drv_object = (void *)dwValue;
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status = 0;
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break;
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case (REG_MGR_OBJECT):
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drv_datap->mgr_object = (void *)dwValue;
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status = 0;
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break;
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default:
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break;
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}
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if (DSP_FAILED(status))
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pr_err("%s: Failed, status 0x%x\n", __func__, status);
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return status;
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}
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@ -0,0 +1,31 @@
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/*
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* ntfy.c
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*
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* DSP-BIOS Bridge driver support functions for TI OMAP processors.
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*
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* Manage lists of notification events.
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*
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* Copyright (C) 2005-2006 Texas Instruments, Inc.
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*
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* This package is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/* ----------------------------------- This */
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#include <dspbridge/ntfy.h>
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int dsp_notifier_event(struct notifier_block *this, unsigned long event,
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void *data)
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{
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struct ntfy_event *ne = container_of(this, struct ntfy_event,
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noti_block);
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if (ne->event & event)
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sync_set_event(&ne->sync_obj);
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return NOTIFY_OK;
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}
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/*
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* services.c
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*
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* DSP-BIOS Bridge driver support functions for TI OMAP processors.
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*
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* Provide SERVICES loading.
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*
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* Copyright (C) 2005-2006 Texas Instruments, Inc.
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*
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* This package is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#include <dspbridge/host_os.h>
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/* ----------------------------------- DSP/BIOS Bridge */
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#include <dspbridge/std.h>
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#include <dspbridge/dbdefs.h>
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/* ----------------------------------- Trace & Debug */
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#include <dspbridge/dbc.h>
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/* ----------------------------------- OS Adaptation Layer */
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#include <dspbridge/cfg.h>
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#include <dspbridge/ntfy.h>
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#include <dspbridge/sync.h>
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#include <dspbridge/clk.h>
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/* ----------------------------------- This */
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#include <dspbridge/services.h>
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/*
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* ======== services_exit ========
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* Purpose:
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* Discontinue usage of module; free resources when reference count
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* reaches 0.
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*/
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void services_exit(void)
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{
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cfg_exit();
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}
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/*
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* ======== services_init ========
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* Purpose:
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* Initializes SERVICES modules.
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*/
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bool services_init(void)
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{
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bool ret = true;
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bool fcfg;
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/* Perform required initialization of SERVICES modules. */
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fcfg = cfg_init();
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ret = fcfg;
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if (!ret) {
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if (fcfg)
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cfg_exit();
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}
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return ret;
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}
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@ -0,0 +1,104 @@
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/*
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* sync.c
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*
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* DSP-BIOS Bridge driver support functions for TI OMAP processors.
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*
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* Synchronization services.
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*
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* Copyright (C) 2005-2006 Texas Instruments, Inc.
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*
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* This package is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/* ----------------------------------- Host OS */
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#include <dspbridge/host_os.h>
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/* ----------------------------------- This */
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#include <dspbridge/sync.h>
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DEFINE_SPINLOCK(sync_lock);
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/**
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* sync_set_event() - set or signal and specified event
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* @event: Event to be set..
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*
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* set the @event, if there is an thread waiting for the event
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* it will be waken up, this function only wakes one thread.
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*/
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void sync_set_event(struct sync_object *event)
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{
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spin_lock_bh(&sync_lock);
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complete(&event->comp);
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if (event->multi_comp)
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complete(event->multi_comp);
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spin_unlock_bh(&sync_lock);
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}
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/**
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* sync_wait_on_multiple_events() - waits for multiple events to be set.
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* @events: Array of events to wait for them.
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* @count: number of elements of the array.
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* @timeout timeout on waiting for the evetns.
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* @pu_index index of the event set.
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*
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* This functios will wait until any of the array element is set or until
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* timeout. In case of success the function will return 0 and
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* @pu_index will store the index of the array element set or in case
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* of timeout the function will return -ETIME or in case of
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* interrupting by a signal it will return -EPERM.
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*/
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int sync_wait_on_multiple_events(struct sync_object **events,
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unsigned count, unsigned timeout,
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unsigned *index)
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{
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unsigned i;
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int status = -EPERM;
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struct completion m_comp;
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init_completion(&m_comp);
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if (SYNC_INFINITE == timeout)
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timeout = MAX_SCHEDULE_TIMEOUT;
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spin_lock_bh(&sync_lock);
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for (i = 0; i < count; i++) {
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if (completion_done(&events[i]->comp)) {
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INIT_COMPLETION(events[i]->comp);
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*index = i;
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spin_unlock_bh(&sync_lock);
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status = 0;
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goto func_end;
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}
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}
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for (i = 0; i < count; i++)
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events[i]->multi_comp = &m_comp;
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spin_unlock_bh(&sync_lock);
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if (!wait_for_completion_interruptible_timeout(&m_comp,
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msecs_to_jiffies(timeout)))
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status = -ETIME;
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spin_lock_bh(&sync_lock);
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for (i = 0; i < count; i++) {
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if (completion_done(&events[i]->comp)) {
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INIT_COMPLETION(events[i]->comp);
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*index = i;
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status = 0;
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}
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events[i]->multi_comp = NULL;
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}
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spin_unlock_bh(&sync_lock);
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func_end:
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return status;
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}
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