diff options
Diffstat (limited to 'src/VBox/Additions/haiku/VBoxVideo/driver/driver.cpp')
| -rw-r--r-- | src/VBox/Additions/haiku/VBoxVideo/driver/driver.cpp | 382 |
1 files changed, 382 insertions, 0 deletions
diff --git a/src/VBox/Additions/haiku/VBoxVideo/driver/driver.cpp b/src/VBox/Additions/haiku/VBoxVideo/driver/driver.cpp new file mode 100644 index 00000000..ce04560a --- /dev/null +++ b/src/VBox/Additions/haiku/VBoxVideo/driver/driver.cpp @@ -0,0 +1,382 @@ +/* $Id: driver.cpp $ */ +/** @file + * VBoxVideo driver, Haiku Guest Additions, implementation. + */ + +/* + * Copyright (C) 2012-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that 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, see <https://www.gnu.org/licenses>. + * + * SPDX-License-Identifier: GPL-3.0-only + */ + +/* + * This code is based on: + * + * VirtualBox Guest Additions for Haiku. + * Copyright (c) 2011 Mike Smith <mike@scgtrp.net> + * François Revol <revol@free.fr> + * + * 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. + * + * 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. 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. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <KernelExport.h> +#include <PCI.h> +#include <malloc.h> +#include <stdio.h> +#include <string.h> +#include <graphic_driver.h> +#include <VBoxGuest-haiku.h> +#include <VBoxVideoGuest.h> +#include "../common/VBoxVideo_common.h" + +#define VENDOR_ID 0x80ee +#define DEVICE_ID 0xbeef +#define DRIVER_NAME "VBoxVideoDriver" +#define DEVICE_FORMAT "vd_%04X_%04X_%02X%02X%02X" + +/** @todo r=ramshankar: pretty sure IPRT has something for page rounding, + * replace with IPRT version later. */ +#define ROUND_TO_PAGE_SIZE(x) (((x) + (B_PAGE_SIZE) - 1) & ~((B_PAGE_SIZE) - 1)) + +#define ENABLE_DEBUG_TRACE + +#undef TRACE +#ifdef ENABLE_DEBUG_TRACE +#define TRACE(x...) dprintf("VBoxVideo: " x) +#else +#define TRACE(x...) ; +#endif + +int32 api_version = B_CUR_DRIVER_API_VERSION; // revision of driver API we support + +extern "C" status_t vm_set_area_memory_type(area_id id, phys_addr_t physicalBase, uint32 type); + +struct Benaphore +{ + sem_id sem; + int32 count; + + status_t Init(const char *name) + { + count = 0; + sem = create_sem(0, name); + return sem < 0 ? sem : B_OK; + } + + status_t Acquire() + { + if (atomic_add(&count, 1) > 0) + return acquire_sem(sem); + return B_OK; + } + + status_t Release() + { + if (atomic_add(&count, -1) > 1) + return release_sem(sem); + return B_OK; + } + + void Delete() + { + delete_sem(sem); + } +}; + +struct DeviceInfo +{ + uint32 openCount; /* Count of how many times device has been opened */ + uint32 flags; /* Device flags */ + area_id sharedArea; /* Area shared between driver and all accelerants */ + SharedInfo *sharedInfo; /* Pointer to shared info area memory */ + pci_info pciInfo; /* Copy of pci info for this device */ + char name[B_OS_NAME_LENGTH]; /* Name of device */ +}; + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ +status_t device_open(const char *name, uint32 flags, void **cookie); +status_t device_close(void *dev); +status_t device_free(void *dev); +status_t device_read(void *dev, off_t pos, void *buf, size_t *len); +status_t device_write(void *dev, off_t pos, const void *buf, size_t *len); +status_t device_ioctl(void *dev, uint32 msg, void *buf, size_t len); +static uint32 get_color_space_for_depth(uint32 depth); + + +/********************************************************************************************************************************* +* Globals * +*********************************************************************************************************************************/ +/* At most one virtual video card ever appears, no reason for this to be an array */ +static DeviceInfo gDeviceInfo; +static char *gDeviceNames[2] = { gDeviceInfo.name, NULL }; +static bool gCanHasDevice = false; /* is the device present? */ +static Benaphore gLock; +static pci_module_info *gPCI; + +static device_hooks gDeviceHooks = +{ + device_open, + device_close, + device_free, + device_ioctl, + device_read, + device_write, + NULL, /* select */ + NULL, /* deselect */ + NULL, /* read_pages */ + NULL /* write_pages */ +}; + + +status_t init_hardware() +{ + LogFlowFunc(("init_hardware\n")); + + status_t err = get_module(VBOXGUEST_MODULE_NAME, (module_info **)&g_VBoxGuest); + if (err == B_OK) + { + err = get_module(B_PCI_MODULE_NAME, (module_info **)&gPCI); + if (err == B_OK) + return B_OK; + + LogRel((DRIVER_NAME ":_init_hardware() get_module(%s) failed. err=%08lx\n", B_PCI_MODULE_NAME)); + } + else + LogRel((DRIVER_NAME ":_init_hardware() get_module(%s) failed. err=%08lx\n", VBOXGUEST_MODULE_NAME, err)); + return B_ERROR; +} + + +status_t init_driver() +{ + LogFlowFunc(("init_driver\n")); + + gLock.Init("VBoxVideo driver lock"); + + uint32 pciIndex = 0; + + while (gPCI->get_nth_pci_info(pciIndex, &gDeviceInfo.pciInfo) == B_OK) + { + if (gDeviceInfo.pciInfo.vendor_id == VENDOR_ID && gDeviceInfo.pciInfo.device_id == DEVICE_ID) + { + sprintf(gDeviceInfo.name, "graphics/" DEVICE_FORMAT, + gDeviceInfo.pciInfo.vendor_id, gDeviceInfo.pciInfo.device_id, + gDeviceInfo.pciInfo.bus, gDeviceInfo.pciInfo.device, gDeviceInfo.pciInfo.function); + TRACE("found device %s\n", gDeviceInfo.name); + + gCanHasDevice = true; + gDeviceInfo.openCount = 0; + + size_t sharedSize = (sizeof(SharedInfo) + 7) & ~7; + gDeviceInfo.sharedArea = create_area("vboxvideo shared info", + (void **)&gDeviceInfo.sharedInfo, B_ANY_KERNEL_ADDRESS, + ROUND_TO_PAGE_SIZE(sharedSize), B_FULL_LOCK, + B_KERNEL_READ_AREA | B_KERNEL_WRITE_AREA | B_USER_CLONEABLE_AREA); + + uint16_t width, height, vwidth, bpp, flags; + VBoxVideoGetModeRegisters(&width, &height, &vwidth, &bpp, &flags); + + gDeviceInfo.sharedInfo->currentMode.space = get_color_space_for_depth(bpp); + gDeviceInfo.sharedInfo->currentMode.virtual_width = width; + gDeviceInfo.sharedInfo->currentMode.virtual_height = height; + gDeviceInfo.sharedInfo->currentMode.h_display_start = 0; + gDeviceInfo.sharedInfo->currentMode.v_display_start = 0; + gDeviceInfo.sharedInfo->currentMode.flags = 0; + gDeviceInfo.sharedInfo->currentMode.timing.h_display = width; + gDeviceInfo.sharedInfo->currentMode.timing.v_display = height; + /* Not used, but this makes a reasonable-sounding refresh rate show in screen prefs: */ + gDeviceInfo.sharedInfo->currentMode.timing.h_total = 1000; + gDeviceInfo.sharedInfo->currentMode.timing.v_total = 1; + gDeviceInfo.sharedInfo->currentMode.timing.pixel_clock = 850; + + /* Map the PCI memory space */ + uint32 command_reg = gPCI->read_pci_config(gDeviceInfo.pciInfo.bus, + gDeviceInfo.pciInfo.device, gDeviceInfo.pciInfo.function, PCI_command, 2); + command_reg |= PCI_command_io | PCI_command_memory | PCI_command_master; + gPCI->write_pci_config(gDeviceInfo.pciInfo.bus, gDeviceInfo.pciInfo.device, + gDeviceInfo.pciInfo.function, PCI_command, 2, command_reg); + + gDeviceInfo.sharedInfo->framebufferArea = map_physical_memory("vboxvideo framebuffer", + (phys_addr_t)gDeviceInfo.pciInfo.u.h0.base_registers[0], + gDeviceInfo.pciInfo.u.h0.base_register_sizes[0], B_ANY_KERNEL_BLOCK_ADDRESS, + B_READ_AREA | B_WRITE_AREA, &(gDeviceInfo.sharedInfo->framebuffer)); + vm_set_area_memory_type(gDeviceInfo.sharedInfo->framebufferArea, + (phys_addr_t)gDeviceInfo.pciInfo.u.h0.base_registers[0], B_MTR_WC); + break; + } + + pciIndex++; + } + + return B_OK; +} + + +const char** publish_devices() +{ + LogFlowFunc(("publish_devices\n")); + if (gCanHasDevice) + return (const char **)gDeviceNames; + return NULL; +} + + +device_hooks* find_device(const char *name) +{ + LogFlowFunc(("find_device\n")); + if (gCanHasDevice && strcmp(name, gDeviceInfo.name) == 0) + return &gDeviceHooks; + + return NULL; +} + + +void uninit_driver() +{ + LogFlowFunc(("uninit_driver\n")); + gLock.Delete(); + put_module(VBOXGUEST_MODULE_NAME); +} + +status_t device_open(const char *name, uint32 flags, void **cookie) +{ + LogFlowFunc(("device_open\n")); + + if (!gCanHasDevice || strcmp(name, gDeviceInfo.name) != 0) + return B_BAD_VALUE; + + /** @todo init device! */ + + *cookie = (void *)&gDeviceInfo; + return B_OK; +} + + +status_t device_close(void *dev) +{ + LogFlowFunc(("device_close\n")); + return B_ERROR; +} + + +status_t device_free(void *dev) +{ + LogFlowFunc(("device_free\n")); + + DeviceInfo& di = *(DeviceInfo *)dev; + gLock.Acquire(); + + if (di.openCount <= 1) + { + /// @todo deinit device! + delete_area(di.sharedArea); + di.sharedArea = -1; + di.sharedInfo = NULL; + } + + if (di.openCount > 0) + di.openCount--; + + gLock.Release(); + + return B_OK; +} + + +status_t device_read(void *dev, off_t pos, void *buf, size_t *len) +{ + LogFlowFunc(("device_read\n")); + return B_NOT_ALLOWED; +} + + +status_t device_write(void *dev, off_t pos, const void *buf, size_t *len) +{ + LogFlowFunc(("device_write\n")); + return B_NOT_ALLOWED; +} + + +status_t device_ioctl(void *cookie, uint32 msg, void *buf, size_t len) +{ + LogFlowFunc(("device_ioctl\n")); + + DeviceInfo *dev = (DeviceInfo *)cookie; + + switch (msg) + { + case B_GET_ACCELERANT_SIGNATURE: + { + strcpy((char *)buf, "vboxvideo.accelerant"); + return B_OK; + } + + case VBOXVIDEO_GET_PRIVATE_DATA: + { + /** @todo r=ramshankar: implement RTR0MemUserCopyFrom for haiku. */ + return user_memcpy(buf, &dev->sharedArea, sizeof(area_id)); + } + + case VBOXVIDEO_GET_DEVICE_NAME: + { + /** @todo r=ramshankar: implement RTR0MemUserCopyFrom for haiku. */ + if (user_strlcpy((char *)buf, gDeviceInfo.name, len) < B_OK) + return B_BAD_ADDRESS; + return B_OK; + } + + case VBOXVIDEO_SET_DISPLAY_MODE: + { + display_mode *mode = (display_mode *)buf; + VBoxVideoSetModeRegisters(mode->timing.h_display, mode->timing.v_display, + mode->timing.h_display, get_depth_for_color_space(mode->space), 0, 0, 0); + gDeviceInfo.sharedInfo->currentMode = *mode; + return B_OK; + } + default: + return B_BAD_VALUE; + } +} + |