diff options
Diffstat (limited to 'pvr-source/tools/intern/debug/dbgdriv/linux/main.c')
| -rw-r--r-- | pvr-source/tools/intern/debug/dbgdriv/linux/main.c | 355 |
1 files changed, 355 insertions, 0 deletions
diff --git a/pvr-source/tools/intern/debug/dbgdriv/linux/main.c b/pvr-source/tools/intern/debug/dbgdriv/linux/main.c new file mode 100644 index 0000000..c1ca85b --- /dev/null +++ b/pvr-source/tools/intern/debug/dbgdriv/linux/main.c @@ -0,0 +1,355 @@ +/*************************************************************************/ /*! +@Title Debug driver main file +@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved +@License Dual MIT/GPLv2 + +The contents of this file are subject to the MIT license as set out below. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +Alternatively, the contents of this file may be used under the terms of +the GNU General Public License Version 2 ("GPL") in which case the provisions +of GPL are applicable instead of those above. + +If you wish to allow use of your version of this file only under the terms of +GPL, and not to allow others to use your version of this file under the terms +of the MIT license, indicate your decision by deleting the provisions above +and replace them with the notice and other provisions required by GPL as set +out in the file called "GPL-COPYING" included in this distribution. If you do +not delete the provisions above, a recipient may use your version of this file +under the terms of either the MIT license or GPL. + +This License is also included in this distribution in the file called +"MIT-COPYING". + +EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS +PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING +BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR +PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +*/ /**************************************************************************/ +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/kernel.h> +#include <linux/kdev_t.h> +#include <linux/pci.h> +#include <linux/list.h> +#include <linux/init.h> +#include <linux/vmalloc.h> +#include <linux/version.h> + +#if defined(LDM_PLATFORM) && !defined(SUPPORT_DRI_DRM) +#include <linux/platform_device.h> +#endif + +#if defined(LDM_PCI) && !defined(SUPPORT_DRI_DRM) +#include <linux/pci.h> +#endif + +#include <asm/uaccess.h> + +#if defined(SUPPORT_DRI_DRM) +#include "drmP.h" +#include "drm.h" +#endif + +#include "img_types.h" +#include "linuxsrv.h" +#include "dbgdriv_ioctl.h" +#include "dbgdrvif.h" +#include "dbgdriv.h" +#include "hostfunc.h" +#include "hotkey.h" +#include "pvr_debug.h" +#include "pvrmodule.h" +#include "pvr_uaccess.h" + +#if defined(SUPPORT_DRI_DRM) + +#include "pvr_drm_shared.h" +#include "pvr_drm.h" + +#else /* defined(SUPPORT_DRI_DRM) */ + +#define DRVNAME "dbgdrv" +MODULE_SUPPORTED_DEVICE(DRVNAME); + +#if (defined(LDM_PLATFORM) || defined(LDM_PCI)) && !defined(SUPPORT_DRI_DRM) +static struct class *psDbgDrvClass; +#endif + +static int AssignedMajorNumber = 0; + +long dbgdrv_ioctl(struct file *, unsigned int, unsigned long); + +static int dbgdrv_open(struct inode unref__ * pInode, struct file unref__ * pFile) +{ + return 0; +} + +static int dbgdrv_release(struct inode unref__ * pInode, struct file unref__ * pFile) +{ + return 0; +} + +static int dbgdrv_mmap(struct file* pFile, struct vm_area_struct* ps_vma) +{ + return 0; +} + +static struct file_operations dbgdrv_fops = { + .owner = THIS_MODULE, + .unlocked_ioctl = dbgdrv_ioctl, + .open = dbgdrv_open, + .release = dbgdrv_release, + .mmap = dbgdrv_mmap, +}; + +#endif /* defined(SUPPORT_DRI_DRM) */ + +IMG_VOID DBGDrvGetServiceTable(DBGKM_SERVICE_TABLE **fn_table) +{ + extern DBGKM_SERVICE_TABLE g_sDBGKMServices; + + *fn_table = &g_sDBGKMServices; +} + +#if defined(SUPPORT_DRI_DRM) +void dbgdrv_cleanup(void) +#else +static void __exit dbgdrv_cleanup(void) +#endif +{ +#if !defined(SUPPORT_DRI_DRM) +#if defined(LDM_PLATFORM) || defined(LDM_PCI) + device_destroy(psDbgDrvClass, MKDEV(AssignedMajorNumber, 0)); + class_destroy(psDbgDrvClass); +#endif + unregister_chrdev(AssignedMajorNumber, DRVNAME); +#endif /* !defined(SUPPORT_DRI_DRM) */ +#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS) + HostDestroyEventObjects(); +#endif + HostDestroyMutex(g_pvAPIMutex); + return; +} + +#if defined(SUPPORT_DRI_DRM) +IMG_INT dbgdrv_init(void) +#else +static int __init dbgdrv_init(void) +#endif +{ +#if (defined(LDM_PLATFORM) || defined(LDM_PCI)) && !defined(SUPPORT_DRI_DRM) + struct device *psDev; +#endif + +#if !defined(SUPPORT_DRI_DRM) + int err = -EBUSY; +#endif + + /* Init API mutex */ + if ((g_pvAPIMutex=HostCreateMutex()) == IMG_NULL) + { + return -ENOMEM; + } + +#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS) + /* + * The current implementation of HostCreateEventObjects on Linux + * can never fail, so there is no need to check for error. + */ + (void) HostCreateEventObjects(); +#endif + +#if !defined(SUPPORT_DRI_DRM) + AssignedMajorNumber = + register_chrdev(AssignedMajorNumber, DRVNAME, &dbgdrv_fops); + + if (AssignedMajorNumber <= 0) + { + PVR_DPF((PVR_DBG_ERROR," unable to get major\n")); + goto ErrDestroyEventObjects; + } + +#if defined(LDM_PLATFORM) || defined(LDM_PCI) + /* + * This code (using GPL symbols) facilitates automatic device + * node creation on platforms with udev (or similar). + */ + psDbgDrvClass = class_create(THIS_MODULE, DRVNAME); + if (IS_ERR(psDbgDrvClass)) + { + PVR_DPF((PVR_DBG_ERROR, "%s: unable to create class (%ld)", + __func__, PTR_ERR(psDbgDrvClass))); + goto ErrUnregisterCharDev; + } + + psDev = device_create(psDbgDrvClass, NULL, MKDEV(AssignedMajorNumber, 0), +#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26)) + NULL, +#endif + DRVNAME); + if (IS_ERR(psDev)) + { + PVR_DPF((PVR_DBG_ERROR, "%s: unable to create device (%ld)", + __func__, PTR_ERR(psDev))); + goto ErrDestroyClass; + } +#endif /* defined(LDM_PLATFORM) || defined(LDM_PCI) */ +#endif /* !defined(SUPPORT_DRI_DRM) */ + + return 0; + +#if !defined(SUPPORT_DRI_DRM) +ErrDestroyEventObjects: +#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS) + HostDestroyEventObjects(); +#endif +#if defined(LDM_PLATFORM) || defined(LDM_PCI) +ErrUnregisterCharDev: + unregister_chrdev(AssignedMajorNumber, DRVNAME); +ErrDestroyClass: + class_destroy(psDbgDrvClass); +#endif + return err; +#endif /* !defined(SUPPORT_DRI_DRM) */ +} + +#if defined(SUPPORT_DRI_DRM) +int dbgdrv_ioctl(struct drm_device *dev, IMG_VOID *arg, struct drm_file *pFile) +#else +long dbgdrv_ioctl(struct file *file, unsigned int ioctlCmd, unsigned long arg) +#endif +{ + IOCTL_PACKAGE *pIP = (IOCTL_PACKAGE *) arg; + char *buffer, *in, *out; + unsigned int cmd; + + if((pIP->ui32InBufferSize > (PAGE_SIZE >> 1) ) || (pIP->ui32OutBufferSize > (PAGE_SIZE >> 1))) + { + PVR_DPF((PVR_DBG_ERROR,"Sizes of the buffers are too large, cannot do ioctl\n")); + return -1; + } + + buffer = (char *) HostPageablePageAlloc(1); + if(!buffer) + { + PVR_DPF((PVR_DBG_ERROR,"Failed to allocate buffer, cannot do ioctl\n")); + return -EFAULT; + } + + in = buffer; + out = buffer + (PAGE_SIZE >>1); + + if(pvr_copy_from_user(in, pIP->pInBuffer, pIP->ui32InBufferSize) != 0) + { + goto init_failed; + } + + /* Extra -1 because ioctls start at DEBUG_SERVICE_IOCTL_BASE + 1 */ + cmd = MAKEIOCTLINDEX(pIP->ui32Cmd) - DEBUG_SERVICE_IOCTL_BASE - 1; + + if(pIP->ui32Cmd == DEBUG_SERVICE_READ) + { + IMG_UINT32 *pui32BytesCopied = (IMG_UINT32 *)out; + DBG_IN_READ *psReadInParams = (DBG_IN_READ *)in; + DBG_STREAM *psStream; + IMG_CHAR *ui8Tmp; + + ui8Tmp = vmalloc(psReadInParams->ui32OutBufferSize); + + if(!ui8Tmp) + { + goto init_failed; + } + + psStream = SID2PStream(psReadInParams->hStream); + if(!psStream) + { + goto init_failed; + } + + *pui32BytesCopied = ExtDBGDrivRead(psStream, + psReadInParams->bReadInitBuffer, + psReadInParams->ui32OutBufferSize, + ui8Tmp); + + if(pvr_copy_to_user(psReadInParams->u.pui8OutBuffer, + ui8Tmp, + *pui32BytesCopied) != 0) + { + vfree(ui8Tmp); + goto init_failed; + } + + vfree(ui8Tmp); + } + else + { + (g_DBGDrivProc[cmd])(in, out); + } + + if(copy_to_user(pIP->pOutBuffer, out, pIP->ui32OutBufferSize) != 0) + { + goto init_failed; + } + + HostPageablePageFree((IMG_VOID *)buffer); + return 0; + +init_failed: + HostPageablePageFree((IMG_VOID *)buffer); + return -EFAULT; +} + + +/****************************************************************************** + * Function Name: RemoveHotKey + * + * Inputs : - + * Outputs : - + * Returns : - + * Globals Used : - + * + * Description : Removes HotKey callbacks + *****************************************************************************/ +IMG_VOID RemoveHotKey (IMG_UINT32 hHotKey) +{ + PVR_UNREFERENCED_PARAMETER(hHotKey); +} + +/****************************************************************************** + * Function Name: DefineHotKey + * + * Inputs : - + * Outputs : - + * Returns : - + * Globals Used : - + * + * Description : Removes HotKey callbacks + *****************************************************************************/ +IMG_VOID DefineHotKey (IMG_UINT32 ui32ScanCode, IMG_UINT32 ui32ShiftState, PHOTKEYINFO psInfo) +{ + PVR_UNREFERENCED_PARAMETER(ui32ScanCode); + PVR_UNREFERENCED_PARAMETER(ui32ShiftState); + PVR_UNREFERENCED_PARAMETER(psInfo); +} + +EXPORT_SYMBOL(DBGDrvGetServiceTable); + +#if !defined(SUPPORT_DRI_DRM) +subsys_initcall(dbgdrv_init); +module_exit(dbgdrv_cleanup); +#endif |