Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752914Ab0FWNED (ORCPT ); Wed, 23 Jun 2010 09:04:03 -0400 Received: from mail-wy0-f174.google.com ([74.125.82.174]:41468 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752754Ab0FWND5 (ORCPT ); Wed, 23 Jun 2010 09:03:57 -0400 From: Ohad Ben-Cohen To: Greg KH Cc: , , Hebbar Shivananda , Ramos Falcon Ernesto , Anna Suman , Kanigeri Hari , Felipe Contreras , Felipe Balbi , Hiroshi DOYU , Gupta Ramesh , Guzman Lugo Fernando , Tony Lindgren , Ameya Palande , Gomez Castellanos Ivan , Andy Shevchenko , Armando Uribe De Leon , Deepak Chitriki , Menon Nishanth , Phil Carmody , Pitney Gilbert , Bhavin Shah , Omar Ramirez Luna , Ohad Ben-Cohen Subject: [PATCH 07/11] staging: ti dspbridge: add services Date: Wed, 23 Jun 2010 16:02:01 +0300 Message-Id: <1277298125-17991-8-git-send-email-ohad@wizery.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1277298125-17991-1-git-send-email-ohad@wizery.com> References: <1277298125-17991-1-git-send-email-ohad@wizery.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 14088 Lines: 520 From: Omar Ramirez Luna Add TI's DSP Bridge driver services code Signed-off-by: Omar Ramirez Luna Signed-off-by: Kanigeri, Hari Signed-off-by: Ameya Palande Signed-off-by: Guzman Lugo, Fernando Signed-off-by: Hebbar, Shivananda Signed-off-by: Ramos Falcon, Ernesto Signed-off-by: Felipe Contreras Signed-off-by: Anna, Suman Signed-off-by: Gupta, Ramesh Signed-off-by: Gomez Castellanos, Ivan Signed-off-by: Andy Shevchenko Signed-off-by: Armando Uribe De Leon Signed-off-by: Deepak Chitriki Signed-off-by: Menon, Nishanth Signed-off-by: Phil Carmody Signed-off-by: Ohad Ben-Cohen --- drivers/staging/tidspbridge/services/cfg.c | 253 +++++++++++++++++++++++ drivers/staging/tidspbridge/services/ntfy.c | 31 +++ drivers/staging/tidspbridge/services/services.c | 69 ++++++ drivers/staging/tidspbridge/services/sync.c | 104 +++++++++ 4 files changed, 457 insertions(+), 0 deletions(-) create mode 100644 drivers/staging/tidspbridge/services/cfg.c create mode 100644 drivers/staging/tidspbridge/services/ntfy.c create mode 100644 drivers/staging/tidspbridge/services/services.c create mode 100644 drivers/staging/tidspbridge/services/sync.c diff --git a/drivers/staging/tidspbridge/services/cfg.c b/drivers/staging/tidspbridge/services/cfg.c new file mode 100644 index 0000000..8ae64f4 --- /dev/null +++ b/drivers/staging/tidspbridge/services/cfg.c @@ -0,0 +1,253 @@ +/* + * cfg.c + * + * DSP-BIOS Bridge driver support functions for TI OMAP processors. + * + * Implementation of platform specific config services. + * + * Copyright (C) 2005-2006 Texas Instruments, Inc. + * + * This package is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +/* ----------------------------------- DSP/BIOS Bridge */ +#include +#include + +/* ----------------------------------- Trace & Debug */ +#include + +/* ----------------------------------- OS Adaptation Layer */ + +/* ----------------------------------- This */ +#include +#include + +struct drv_ext { + struct list_head link; + char sz_string[MAXREGPATHLENGTH]; +}; + +/* + * ======== cfg_exit ======== + * Purpose: + * Discontinue usage of the CFG module. + */ +void cfg_exit(void) +{ + /* Do nothing */ +} + +/* + * ======== cfg_get_auto_start ======== + * Purpose: + * Retreive the autostart mask, if any, for this board. + */ +int cfg_get_auto_start(struct cfg_devnode *dev_node_obj, + OUT u32 *pdwAutoStart) +{ + int status = 0; + u32 dw_buf_size; + struct drv_data *drv_datap = dev_get_drvdata(bridge); + + dw_buf_size = sizeof(*pdwAutoStart); + if (!dev_node_obj) + status = -EFAULT; + if (!pdwAutoStart || !drv_datap) + status = -EFAULT; + if (DSP_SUCCEEDED(status)) + *pdwAutoStart = (drv_datap->base_img) ? 1 : 0; + + DBC_ENSURE((status == 0 && + (*pdwAutoStart == 0 || *pdwAutoStart == 1)) + || status != 0); + return status; +} + +/* + * ======== cfg_get_dev_object ======== + * Purpose: + * Retrieve the Device Object handle for a given devnode. + */ +int cfg_get_dev_object(struct cfg_devnode *dev_node_obj, + OUT u32 *pdwValue) +{ + int status = 0; + u32 dw_buf_size; + struct drv_data *drv_datap = dev_get_drvdata(bridge); + + if (!drv_datap) + status = -EPERM; + + if (!dev_node_obj) + status = -EFAULT; + + if (!pdwValue) + status = -EFAULT; + + dw_buf_size = sizeof(pdwValue); + if (DSP_SUCCEEDED(status)) { + + /* check the device string and then store dev object */ + if (! + (strcmp + ((char *)((struct drv_ext *)dev_node_obj)->sz_string, + "TIOMAP1510"))) + *pdwValue = (u32)drv_datap->dev_object; + } + if (DSP_FAILED(status)) + pr_err("%s: Failed, status 0x%x\n", __func__, status); + return status; +} + +/* + * ======== cfg_get_exec_file ======== + * Purpose: + * Retreive the default executable, if any, for this board. + */ +int cfg_get_exec_file(struct cfg_devnode *dev_node_obj, u32 ul_buf_size, + OUT char *pstrExecFile) +{ + int status = 0; + struct drv_data *drv_datap = dev_get_drvdata(bridge); + + if (!dev_node_obj) + status = -EFAULT; + + else if (!pstrExecFile || !drv_datap) + status = -EFAULT; + + if (strlen(drv_datap->base_img) > ul_buf_size) + status = -EINVAL; + + if (DSP_SUCCEEDED(status) && drv_datap->base_img) + strcpy(pstrExecFile, drv_datap->base_img); + + if (DSP_FAILED(status)) + pr_err("%s: Failed, status 0x%x\n", __func__, status); + DBC_ENSURE(((status == 0) && + (strlen(pstrExecFile) <= ul_buf_size)) + || (status != 0)); + return status; +} + +/* + * ======== cfg_get_object ======== + * Purpose: + * Retrieve the Object handle from the Registry + */ +int cfg_get_object(OUT u32 *pdwValue, u8 dw_type) +{ + int status = -EINVAL; + struct drv_data *drv_datap = dev_get_drvdata(bridge); + + DBC_REQUIRE(pdwValue != NULL); + + if (!drv_datap) + return -EPERM; + + switch (dw_type) { + case (REG_DRV_OBJECT): + if (drv_datap->drv_object) { + *pdwValue = (u32)drv_datap->drv_object; + status = 0; + } else { + status = -ENODATA; + } + break; + case (REG_MGR_OBJECT): + if (drv_datap->mgr_object) { + *pdwValue = (u32)drv_datap->mgr_object; + status = 0; + } else { + status = -ENODATA; + } + break; + + default: + break; + } + if (DSP_FAILED(status)) { + *pdwValue = 0; + pr_err("%s: Failed, status 0x%x\n", __func__, status); + } + DBC_ENSURE((DSP_SUCCEEDED(status) && *pdwValue != 0) || + (DSP_FAILED(status) && *pdwValue == 0)); + return status; +} + +/* + * ======== cfg_init ======== + * Purpose: + * Initialize the CFG module's private state. + */ +bool cfg_init(void) +{ + return true; +} + +/* + * ======== cfg_set_dev_object ======== + * Purpose: + * Store the Device Object handle and dev_node pointer for a given devnode. + */ +int cfg_set_dev_object(struct cfg_devnode *dev_node_obj, u32 dwValue) +{ + int status = 0; + struct drv_data *drv_datap = dev_get_drvdata(bridge); + + if (!drv_datap) { + pr_err("%s: Failed, status 0x%x\n", __func__, status); + return -EPERM; + } + + if (!dev_node_obj) + status = -EFAULT; + + if (DSP_SUCCEEDED(status)) { + /* Store the Bridge device object in the Registry */ + + if (!(strcmp((char *)dev_node_obj, "TIOMAP1510"))) + drv_datap->dev_object = (void *) dwValue; + } + if (DSP_FAILED(status)) + pr_err("%s: Failed, status 0x%x\n", __func__, status); + + return status; +} + +/* + * ======== cfg_set_object ======== + * Purpose: + * Store the Driver Object handle + */ +int cfg_set_object(u32 dwValue, u8 dw_type) +{ + int status = -EINVAL; + struct drv_data *drv_datap = dev_get_drvdata(bridge); + + if (!drv_datap) + return -EPERM; + + switch (dw_type) { + case (REG_DRV_OBJECT): + drv_datap->drv_object = (void *)dwValue; + status = 0; + break; + case (REG_MGR_OBJECT): + drv_datap->mgr_object = (void *)dwValue; + status = 0; + break; + default: + break; + } + if (DSP_FAILED(status)) + pr_err("%s: Failed, status 0x%x\n", __func__, status); + return status; +} diff --git a/drivers/staging/tidspbridge/services/ntfy.c b/drivers/staging/tidspbridge/services/ntfy.c new file mode 100644 index 0000000..a2ea698 --- /dev/null +++ b/drivers/staging/tidspbridge/services/ntfy.c @@ -0,0 +1,31 @@ +/* + * ntfy.c + * + * DSP-BIOS Bridge driver support functions for TI OMAP processors. + * + * Manage lists of notification events. + * + * Copyright (C) 2005-2006 Texas Instruments, Inc. + * + * This package is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +/* ----------------------------------- This */ +#include + +int dsp_notifier_event(struct notifier_block *this, unsigned long event, + void *data) +{ + struct ntfy_event *ne = container_of(this, struct ntfy_event, + noti_block); + if (ne->event & event) + sync_set_event(&ne->sync_obj); + return NOTIFY_OK; +} + diff --git a/drivers/staging/tidspbridge/services/services.c b/drivers/staging/tidspbridge/services/services.c new file mode 100644 index 0000000..23be95c --- /dev/null +++ b/drivers/staging/tidspbridge/services/services.c @@ -0,0 +1,69 @@ +/* + * services.c + * + * DSP-BIOS Bridge driver support functions for TI OMAP processors. + * + * Provide SERVICES loading. + * + * Copyright (C) 2005-2006 Texas Instruments, Inc. + * + * This package is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +#include + +/* ----------------------------------- DSP/BIOS Bridge */ +#include +#include + +/* ----------------------------------- Trace & Debug */ +#include + +/* ----------------------------------- OS Adaptation Layer */ +#include +#include +#include +#include + +/* ----------------------------------- This */ +#include + +/* + * ======== services_exit ======== + * Purpose: + * Discontinue usage of module; free resources when reference count + * reaches 0. + */ +void services_exit(void) +{ + cfg_exit(); +} + +/* + * ======== services_init ======== + * Purpose: + * Initializes SERVICES modules. + */ +bool services_init(void) +{ + bool ret = true; + bool fcfg; + + /* Perform required initialization of SERVICES modules. */ + fcfg = cfg_init(); + + ret = fcfg; + + if (!ret) { + if (fcfg) + cfg_exit(); + } + + return ret; +} diff --git a/drivers/staging/tidspbridge/services/sync.c b/drivers/staging/tidspbridge/services/sync.c new file mode 100644 index 0000000..9010b37 --- /dev/null +++ b/drivers/staging/tidspbridge/services/sync.c @@ -0,0 +1,104 @@ +/* + * sync.c + * + * DSP-BIOS Bridge driver support functions for TI OMAP processors. + * + * Synchronization services. + * + * Copyright (C) 2005-2006 Texas Instruments, Inc. + * + * This package is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +/* ----------------------------------- Host OS */ +#include + +/* ----------------------------------- This */ +#include + +DEFINE_SPINLOCK(sync_lock); + +/** + * sync_set_event() - set or signal and specified event + * @event: Event to be set.. + * + * set the @event, if there is an thread waiting for the event + * it will be waken up, this function only wakes one thread. + */ + +void sync_set_event(struct sync_object *event) +{ + spin_lock_bh(&sync_lock); + complete(&event->comp); + if (event->multi_comp) + complete(event->multi_comp); + spin_unlock_bh(&sync_lock); +} + +/** + * sync_wait_on_multiple_events() - waits for multiple events to be set. + * @events: Array of events to wait for them. + * @count: number of elements of the array. + * @timeout timeout on waiting for the evetns. + * @pu_index index of the event set. + * + * This functios will wait until any of the array element is set or until + * timeout. In case of success the function will return 0 and + * @pu_index will store the index of the array element set or in case + * of timeout the function will return -ETIME or in case of + * interrupting by a signal it will return -EPERM. + */ + +int sync_wait_on_multiple_events(struct sync_object **events, + unsigned count, unsigned timeout, + unsigned *index) +{ + unsigned i; + int status = -EPERM; + struct completion m_comp; + + init_completion(&m_comp); + + if (SYNC_INFINITE == timeout) + timeout = MAX_SCHEDULE_TIMEOUT; + + spin_lock_bh(&sync_lock); + for (i = 0; i < count; i++) { + if (completion_done(&events[i]->comp)) { + INIT_COMPLETION(events[i]->comp); + *index = i; + spin_unlock_bh(&sync_lock); + status = 0; + goto func_end; + } + } + + for (i = 0; i < count; i++) + events[i]->multi_comp = &m_comp; + + spin_unlock_bh(&sync_lock); + + if (!wait_for_completion_interruptible_timeout(&m_comp, + msecs_to_jiffies(timeout))) + status = -ETIME; + + spin_lock_bh(&sync_lock); + for (i = 0; i < count; i++) { + if (completion_done(&events[i]->comp)) { + INIT_COMPLETION(events[i]->comp); + *index = i; + status = 0; + } + events[i]->multi_comp = NULL; + } + spin_unlock_bh(&sync_lock); +func_end: + return status; +} + -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/