/* $Id: DevBusMouse.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */ /** @file * BusMouse - Microsoft Bus (parallel) mouse controller device. */ /* * Copyright (C) 2006-2023 Oracle and/or its affiliates. * * 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 * *********************************************************************************************************************************/ #define LOG_GROUP LOG_GROUP_DEV_KBD #include #ifndef IN_RING3 # include #endif #include #include #include #include /** @page pg_busmouse DevBusMouse - Microsoft Bus Mouse Emulation * * The Microsoft Bus Mouse was an early mouse sold by Microsoft, originally * introduced in 1983. The mouse had a D-shaped 9-pin connector which plugged * into a small ISA add-in board. * * The mouse itself was very simple (compared to a serial mouse) and most of the * logic was located on the ISA board. Later, Microsoft sold an InPort mouse, * which was also called a "bus mouse", but used a different interface. * * Microsoft part numbers for the Bus Mouse were 037-099 (100 ppi) * and 037-199 (200 ppi). * * The Bus Mouse adapter included IRQ configuration jumpers (ref. MS article * Q12230). The IRQ could be set to one of 2, 3, 4, 5. The typical setting * would be IRQ 2 for a PC/XT and IRQ 5 for an AT compatible. Because IRQ 5 * may conflict with a SoundBlaster or a PCI device, this device defaults to * IRQ 3. Note that IRQ 3 is also used by the COM 2 device, not often needed. * * The ISA adapter was built around an Intel 8255A compatible chip (ref. * MS article Q46369). Once enabled, the adapter raises the configured IRQ * 30 times per second; the rate is not configurable. The interrupts * occur regardless of whether the mouse state has changed or not. * * To function properly, the 8255A must be programmed as follows: * - Port A: Input. Used to read motion deltas and button states. * - Port B: Output. Not used except for mouse detection. * - Port C: Split. Upper bits set as output, used for control purposes. * Lower bits set as input, reflecting IRQ state. * * Detailed information was gleaned from Windows and OS/2 DDK mouse samples. */ /********************************************************************************************************************************* * Defined Constants And Macros * *********************************************************************************************************************************/ /** The original bus mouse controller is fixed at I/O port 0x23C. */ #define BMS_IO_BASE 0x23C #define BMS_IO_SIZE 4 /** @name Offsets relative to the I/O base. *@{ */ #define BMS_PORT_DATA 0 /**< 8255 Port A. */ #define BMS_PORT_SIG 1 /**< 8255 Port B. */ #define BMS_PORT_CTRL 2 /**< 8255 Port C. */ #define BMS_PORT_INIT 3 /**< 8255 Control Port. */ /** @} */ /** @name Port C bits (control port). * @{ */ #define BMS_CTL_INT_DIS RT_BIT(4) /**< Disable IRQ (else enabled). */ #define BMS_CTL_SEL_HIGH RT_BIT(5) /**< Select hi nibble (else lo). */ #define BMS_CTL_SEL_Y RT_BIT(6) /**< Select X to read (else Y). */ #define BMS_CTL_HOLD RT_BIT(7) /**< Hold counter (else clear). */ /** @} */ /** @name Port A bits (data port). * @{ */ #define BMS_DATA_DELTA 0x0F /**< Motion delta in lower nibble. */ #define BMS_DATA_B3_UP RT_BIT(5) /**< Button 3 (right) is up. */ #define BMS_DATA_B2_UP RT_BIT(6) /**< Button 2 (middle) is up. */ #define BMS_DATA_B1_UP RT_BIT(7) /**< Button 1 (left) is up. */ /** @} */ /** Convert IRQ level (2/3/4/5) to a bit in the control register. */ #define BMS_IRQ_BIT(a) (1 << (5 - a)) /** IRQ period, corresponds to approx. 30 Hz. */ #define BMS_IRQ_PERIOD_MS 34 /** Default IRQ setting. */ #define BMS_DEFAULT_IRQ 3 /** The saved state version. */ #define BMS_SAVED_STATE_VERSION 1 /********************************************************************************************************************************* * Structures and Typedefs * *********************************************************************************************************************************/ /** * The shared Bus Mouse device state. */ typedef struct MouState { /** @name 8255A state * @{ */ uint8_t port_a; uint8_t port_b; uint8_t port_c; uint8_t ctrl_port; uint8_t cnt_held; /**< Counters held for reading. */ uint8_t held_dx; uint8_t held_dy; uint8_t irq; /**< The "jumpered" IRQ level. */ int32_t irq_toggle_counter; /** Timer period in milliseconds. */ uint32_t cTimerPeriodMs; /** Mouse timer handle. */ TMTIMERHANDLE hMouseTimer; /** @} */ /** @name mouse state * @{ */ int32_t disable_counter; int32_t mouse_dx; /* current values, needed for 'poll' mode */ int32_t mouse_dy; uint8_t mouse_enabled; uint8_t mouse_buttons; uint8_t mouse_buttons_reported; uint8_t bAlignment; /** @} */ /** The I/O ports registration. */ IOMIOPORTHANDLE hIoPorts; } MouState, BMSSTATE; /** Pointer to the shared Bus Mouse device state. */ typedef BMSSTATE *PBMSSTATE; /** * The ring-3 Bus Mouse device state. */ typedef struct BMSSTATER3 { /** Pointer to the device instance. * @note Only for getting our bearings in an interface method. */ PPDMDEVINSR3 pDevIns; /** * Mouse port - LUN#0. * * @implements PDMIBASE * @implements PDMIMOUSEPORT */ struct { /** The base interface for the mouse port. */ PDMIBASE IBase; /** The mouse port base interface. */ PDMIMOUSEPORT IPort; /** The base interface of the attached mouse driver. */ R3PTRTYPE(PPDMIBASE) pDrvBase; /** The mouse interface of the attached mouse driver. */ R3PTRTYPE(PPDMIMOUSECONNECTOR) pDrv; } Mouse; } BMSSTATER3; /** Pointer to the ring-3 Bus Mouse device state. */ typedef BMSSTATER3 *PBMSSTATER3; #ifndef VBOX_DEVICE_STRUCT_TESTCASE # ifdef IN_RING3 /** * Report a change in status down the driver chain. * * We want to report the mouse as enabled if and only if the guest is "using" * it. That way, other devices (e.g. a PS/2 or USB mouse) can receive mouse * events when the bus mouse is disabled. Enabling interrupts constitutes * enabling the bus mouse. The mouse is considered disabled if interrupts are * disabled for several consecutive mouse timer ticks; this is because the * interrupt handler in the guest typically temporarily disables interrupts and * we do not want to toggle the enabled/disabled state more often than * necessary. */ static void bmsR3UpdateDownstreamStatus(PBMSSTATE pThis, PBMSSTATER3 pThisCC) { PPDMIMOUSECONNECTOR pDrv = pThisCC->Mouse.pDrv; bool fEnabled = !!pThis->mouse_enabled; if (pDrv) /* pDrv may be NULL if no mouse interface attached. */ pDrv->pfnReportModes(pDrv, fEnabled, false, false, false); } /** * Process a mouse event coming from the host. */ static void bmsR3MouseEvent(PBMSSTATE pThis, int dx, int dy, int dz, int dw, int buttons_state) { LogRel3(("%s: dx=%d, dy=%d, dz=%d, dw=%d, buttons_state=0x%x\n", __PRETTY_FUNCTION__, dx, dy, dz, dw, buttons_state)); /* Only record X/Y movement and buttons. */ pThis->mouse_dx += dx; pThis->mouse_dy += dy; pThis->mouse_buttons = buttons_state; } /** * @callback_method_impl{FNTMTIMERDEV} */ static DECLCALLBACK(void) bmsR3TimerCallback(PPDMDEVINS pDevIns, TMTIMERHANDLE hTimer, void *pvUser) { PBMSSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PBMSSTATE); PBMSSTATER3 pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PBMSSTATER3); uint8_t irq_bit; RT_NOREF(pvUser); Assert(hTimer == pThis->hMouseTimer); /* Toggle the IRQ line if interrupts are enabled. */ irq_bit = BMS_IRQ_BIT(pThis->irq); if (pThis->port_c & irq_bit) { if (!(pThis->port_c & BMS_CTL_INT_DIS)) PDMDevHlpISASetIrq(pDevIns, pThis->irq, PDM_IRQ_LEVEL_LOW); pThis->port_c &= ~irq_bit; } else { pThis->port_c |= irq_bit; if (!(pThis->port_c & BMS_CTL_INT_DIS)) PDMDevHlpISASetIrq(pDevIns, pThis->irq, PDM_IRQ_LEVEL_HIGH); } /* Handle enabling/disabling of the mouse interface. */ if (pThis->port_c & BMS_CTL_INT_DIS) { if (pThis->disable_counter) --pThis->disable_counter; if (pThis->disable_counter == 0 && pThis->mouse_enabled) { pThis->mouse_enabled = false; bmsR3UpdateDownstreamStatus(pThis, pThisCC); } } else { pThis->disable_counter = 8; /* Re-arm the disable countdown. */ if (!pThis->mouse_enabled) { pThis->mouse_enabled = true; bmsR3UpdateDownstreamStatus(pThis, pThisCC); } } /* Re-arm the timer. */ PDMDevHlpTimerSetMillies(pDevIns, hTimer, pThis->cTimerPeriodMs); } # endif /* IN_RING3 */ static void bmsSetReportedButtons(PBMSSTATE pThis, unsigned fButtons, unsigned fButtonMask) { pThis->mouse_buttons_reported |= (fButtons & fButtonMask); pThis->mouse_buttons_reported &= (fButtons | ~fButtonMask); } /** * Update the internal state after a write to port C. */ static void bmsUpdateCtrl(PPDMDEVINS pDevIns, PBMSSTATE pThis) { int32_t dx, dy; /* If the controller is in hold state, transfer data from counters. */ if (pThis->port_c & BMS_CTL_HOLD) { if (!pThis->cnt_held) { pThis->cnt_held = true; dx = pThis->mouse_dx < 0 ? RT_MAX(pThis->mouse_dx, -128) : RT_MIN(pThis->mouse_dx, 127); dy = pThis->mouse_dy < 0 ? RT_MAX(pThis->mouse_dy, -128) : RT_MIN(pThis->mouse_dy, 127); pThis->mouse_dx -= dx; pThis->mouse_dy -= dy; bmsSetReportedButtons(pThis, pThis->mouse_buttons & 0x07, 0x07); /* Force type conversion. */ pThis->held_dx = dx; pThis->held_dy = dy; } } else pThis->cnt_held = false; /* Move the appropriate nibble into port A. */ if (pThis->cnt_held) { if (pThis->port_c & BMS_CTL_SEL_Y) { if (pThis->port_c & BMS_CTL_SEL_HIGH) pThis->port_a = pThis->held_dy >> 4; else pThis->port_a = pThis->held_dy & 0xF; } else { if (pThis->port_c & BMS_CTL_SEL_HIGH) pThis->port_a = pThis->held_dx >> 4; else pThis->port_a = pThis->held_dx & 0xF; } /* And update the button bits. */ pThis->port_a |= pThis->mouse_buttons & 1 ? 0 : BMS_DATA_B1_UP; pThis->port_a |= pThis->mouse_buttons & 2 ? 0 : BMS_DATA_B3_UP; pThis->port_a |= pThis->mouse_buttons & 4 ? 0 : BMS_DATA_B2_UP; } /* Immediately clear the IRQ if necessary. */ if (pThis->port_c & BMS_CTL_INT_DIS) { PDMDevHlpISASetIrq(pDevIns, pThis->irq, PDM_IRQ_LEVEL_LOW); pThis->port_c &= ~BMS_IRQ_BIT(pThis->irq); } } /** * @callback_method_impl{FNIOMIOPORTNEWIN} */ static DECLCALLBACK(VBOXSTRICTRC) bmsIoPortRead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t *pu32, unsigned cb) { RT_NOREF(pvUser); if (cb == 1) { PBMSSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PBMSSTATE); uint32_t uValue; switch (offPort) { case BMS_PORT_DATA: /* Read port A. */ uValue = pThis->port_a; break; case BMS_PORT_SIG: /* Read port B. */ uValue = pThis->port_b; break; case BMS_PORT_CTRL: /* Read port C. */ uValue = pThis->port_c; /* Some Microsoft driver code reads the control port 10,000 times when * determining the IRQ level. This can occur faster than the IRQ line * transitions and the detection fails. To work around this, we force * the IRQ bit to toggle every once in a while. */ if (pThis->irq_toggle_counter) pThis->irq_toggle_counter--; else { pThis->irq_toggle_counter = 1000; uValue ^= BMS_IRQ_BIT(pThis->irq); } break; case BMS_PORT_INIT: /* Read the 8255A control port. */ uValue = pThis->ctrl_port; break; default: ASSERT_GUEST_MSG_FAILED(("invalid port %#x\n", offPort)); uValue = 0xff; break; } *pu32 = uValue; Log2(("mouIoPortRead: offPort=%#x+%x cb=%d *pu32=%#x\n", BMS_IO_BASE, offPort, cb, uValue)); LogRel3(("mouIoPortRead: read port %u: %#04x\n", offPort, uValue)); return VINF_SUCCESS; } ASSERT_GUEST_MSG_FAILED(("offPort=%#x cb=%d\n", offPort, cb)); return VERR_IOM_IOPORT_UNUSED; } /** * @callback_method_impl{FNIOMIOPORTNEWOUT} */ static DECLCALLBACK(VBOXSTRICTRC) bmsIoPortWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb) { RT_NOREF(pvUser); if (cb == 1) { PBMSSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PBMSSTATE); LogRel3(("mouIoPortWrite: write port %u: %#04x\n", offPort, u32)); switch (offPort) { case BMS_PORT_SIG: /* Update port B. */ pThis->port_b = u32; break; case BMS_PORT_DATA: /* Do nothing, port A is not writable. */ break; case BMS_PORT_INIT: pThis->ctrl_port = u32; break; case BMS_PORT_CTRL: /* Update the high nibble of port C. */ pThis->port_c = (u32 & 0xF0) | (pThis->port_c & 0x0F); bmsUpdateCtrl(pDevIns, pThis); break; default: ASSERT_GUEST_MSG_FAILED(("invalid port %#x\n", offPort)); break; } Log2(("mouIoPortWrite: offPort=%#x+%u cb=%d u32=%#x\n", BMS_IO_BASE, offPort, cb, u32)); } else ASSERT_GUEST_MSG_FAILED(("offPort=%#x cb=%d\n", offPort, cb)); return VINF_SUCCESS; } # ifdef IN_RING3 /** * @callback_method_impl{FNSSMDEVSAVEEXEC} */ static DECLCALLBACK(int) bmsR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle) { PBMSSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PBMSSTATE); PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3; /* 8255A state. */ pHlp->pfnSSMPutU8(pSSMHandle, pThis->port_a); pHlp->pfnSSMPutU8(pSSMHandle, pThis->port_b); pHlp->pfnSSMPutU8(pSSMHandle, pThis->port_c); pHlp->pfnSSMPutU8(pSSMHandle, pThis->ctrl_port); /* Other device state. */ pHlp->pfnSSMPutU8(pSSMHandle, pThis->cnt_held); pHlp->pfnSSMPutU8(pSSMHandle, pThis->held_dx); pHlp->pfnSSMPutU8(pSSMHandle, pThis->held_dy); pHlp->pfnSSMPutU8(pSSMHandle, pThis->irq); pHlp->pfnSSMPutU32(pSSMHandle, pThis->cTimerPeriodMs); /* Current mouse state deltas. */ pHlp->pfnSSMPutS32(pSSMHandle, pThis->mouse_dx); pHlp->pfnSSMPutS32(pSSMHandle, pThis->mouse_dy); pHlp->pfnSSMPutU8(pSSMHandle, pThis->mouse_buttons_reported); /* Timer. */ return PDMDevHlpTimerSave(pDevIns, pThis->hMouseTimer, pSSMHandle); } /** * @callback_method_impl{FNSSMDEVLOADEXEC} */ static DECLCALLBACK(int) bmsR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle, uint32_t uVersion, uint32_t uPass) { PBMSSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PBMSSTATE); PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3; Assert(uPass == SSM_PASS_FINAL); NOREF(uPass); if (uVersion > BMS_SAVED_STATE_VERSION) return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION; /* 8255A state. */ pHlp->pfnSSMGetU8(pSSMHandle, &pThis->port_a); pHlp->pfnSSMGetU8(pSSMHandle, &pThis->port_b); pHlp->pfnSSMGetU8(pSSMHandle, &pThis->port_c); pHlp->pfnSSMGetU8(pSSMHandle, &pThis->ctrl_port); /* Other device state. */ pHlp->pfnSSMGetU8(pSSMHandle, &pThis->cnt_held); pHlp->pfnSSMGetU8(pSSMHandle, &pThis->held_dx); pHlp->pfnSSMGetU8(pSSMHandle, &pThis->held_dy); pHlp->pfnSSMGetU8(pSSMHandle, &pThis->irq); pHlp->pfnSSMGetU32(pSSMHandle, &pThis->cTimerPeriodMs); /* Current mouse state deltas. */ pHlp->pfnSSMGetS32(pSSMHandle, &pThis->mouse_dx); pHlp->pfnSSMGetS32(pSSMHandle, &pThis->mouse_dy); pHlp->pfnSSMGetU8(pSSMHandle, &pThis->mouse_buttons_reported); /* Timer. */ return PDMDevHlpTimerLoad(pDevIns, pThis->hMouseTimer, pSSMHandle); } /** * Reset notification. * * @returns VBox status code. * @param pDevIns The device instance data. */ static DECLCALLBACK(void) bmsR3Reset(PPDMDEVINS pDevIns) { PBMSSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PBMSSTATE); PBMSSTATER3 pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PBMSSTATER3); /* Reinitialize the timer. */ pThis->cTimerPeriodMs = BMS_IRQ_PERIOD_MS / 2; PDMDevHlpTimerSetMillies(pDevIns, pThis->hMouseTimer, pThis->cTimerPeriodMs); /* Clear the device setup. */ pThis->port_a = pThis->port_b = 0; pThis->port_c = BMS_CTL_INT_DIS; /* Interrupts disabled. */ pThis->ctrl_port = 0x91; /* Default 8255A setup. */ /* Clear motion/button state. */ pThis->cnt_held = false; pThis->mouse_dx = pThis->mouse_dy = 0; pThis->mouse_buttons = 0; pThis->mouse_buttons_reported = 0; pThis->disable_counter = 0; pThis->irq_toggle_counter = 1000; if (pThis->mouse_enabled) { pThis->mouse_enabled = false; bmsR3UpdateDownstreamStatus(pThis, pThisCC); } } /* -=-=-=-=-=- Mouse: IBase -=-=-=-=-=- */ /** * @interface_method_impl{PDMIBASE,pfnQueryInterface} */ static DECLCALLBACK(void *) bmsR3Base_QueryMouseInterface(PPDMIBASE pInterface, const char *pszIID) { PBMSSTATER3 pThisCC = RT_FROM_MEMBER(pInterface, BMSSTATER3, Mouse.IBase); PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThisCC->Mouse.IBase); PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMOUSEPORT, &pThisCC->Mouse.IPort); return NULL; } /* -=-=-=-=-=- Mouse: IMousePort -=-=-=-=-=- */ /** * @interface_method_impl{PDMIMOUSEPORT,pfnPutEvent} */ static DECLCALLBACK(int) bmsR3MousePort_PutEvent(PPDMIMOUSEPORT pInterface, int32_t dx, int32_t dy, int32_t dz, int32_t dw, uint32_t fButtons) { PBMSSTATER3 pThisCC = RT_FROM_MEMBER(pInterface, BMSSTATER3, Mouse.IPort); PPDMDEVINS pDevIns = pThisCC->pDevIns; PBMSSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PBMSSTATE); int rc = PDMDevHlpCritSectEnter(pDevIns, pDevIns->CTX_SUFF(pCritSectRo), VERR_SEM_BUSY); PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, pDevIns->CTX_SUFF(pCritSectRo), rc); bmsR3MouseEvent(pThis, dx, dy, dz, dw, fButtons); PDMDevHlpCritSectLeave(pDevIns, pDevIns->CTX_SUFF(pCritSectRo)); return VINF_SUCCESS; } /** * @interface_method_impl{PDMIMOUSEPORT,pfnPutEventAbs} */ static DECLCALLBACK(int) bmsR3MousePort_PutEventAbs(PPDMIMOUSEPORT pInterface, uint32_t x, uint32_t y, int32_t dz, int32_t dw, uint32_t fButtons) { RT_NOREF(pInterface, x, y, dz, dw, fButtons); AssertFailedReturn(VERR_NOT_SUPPORTED); } /** * @interface_method_impl{PDMIMOUSEPORT,pfnPutEventMultiTouch} */ static DECLCALLBACK(int) bmsR3MousePort_PutEventMultiTouch(PPDMIMOUSEPORT pInterface, uint8_t cContacts, const uint64_t *pau64Contacts, uint32_t u32ScanTime) { RT_NOREF(pInterface, cContacts, pau64Contacts, u32ScanTime); AssertFailedReturn(VERR_NOT_SUPPORTED); } /* -=-=-=-=-=- setup code -=-=-=-=-=- */ /** * @interface_method_impl{PDMDEVREGR3,pfnAttach} */ static DECLCALLBACK(int) bmsR3Attach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags) { PBMSSTATER3 pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PBMSSTATER3); int rc; AssertMsgReturn(fFlags & PDM_TACH_FLAGS_NOT_HOT_PLUG, ("Bus mouse device does not support hotplugging\n"), VERR_INVALID_PARAMETER); switch (iLUN) { /* LUN #0: mouse */ case 0: rc = PDMDevHlpDriverAttach(pDevIns, iLUN, &pThisCC->Mouse.IBase, &pThisCC->Mouse.pDrvBase, "Bus Mouse Port"); if (RT_SUCCESS(rc)) { pThisCC->Mouse.pDrv = PDMIBASE_QUERY_INTERFACE(pThisCC->Mouse.pDrvBase, PDMIMOUSECONNECTOR); if (!pThisCC->Mouse.pDrv) { AssertLogRelMsgFailed(("LUN #0 doesn't have a mouse interface! rc=%Rrc\n", rc)); rc = VERR_PDM_MISSING_INTERFACE; } } else if (rc == VERR_PDM_NO_ATTACHED_DRIVER) { LogRel(("%s/%d: Warning: no driver attached to LUN #0!\n", pDevIns->pReg->szName, pDevIns->iInstance)); rc = VINF_SUCCESS; } else AssertLogRelMsgFailed(("Failed to attach LUN #0! rc=%Rrc\n", rc)); break; default: AssertMsgFailed(("Invalid LUN #%d\n", iLUN)); return VERR_PDM_NO_SUCH_LUN; } return rc; } /** * @interface_method_impl{PDMDEVREGR3,pfnDetach} */ static DECLCALLBACK(void) bmsR3Detach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags) { # if 0 /* * Reset the interfaces and update the controller state. */ PBMSSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PBMSSTATE); switch (iLUN) { /* LUN #0: mouse */ case 0: pThis->Mouse.pDrv = NULL; pThis->Mouse.pDrvBase = NULL; break; default: AssertMsgFailed(("Invalid LUN #%d\n", iLUN)); break; } # else RT_NOREF(pDevIns, iLUN, fFlags); # endif } /** * @interface_method_impl{PDMDEVREG,pfnConstruct} */ static DECLCALLBACK(int) bmsR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg) { PDMDEV_CHECK_VERSIONS_RETURN(pDevIns); PBMSSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PBMSSTATE); PBMSSTATER3 pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PBMSSTATER3); PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3; int rc; RT_NOREF(iInstance); Assert(iInstance == 0); /* * Validate and read the configuration. */ PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "IRQ", ""); rc = pHlp->pfnCFGMQueryU8Def(pCfg, "IRQ", &pThis->irq, BMS_DEFAULT_IRQ); if (RT_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("Failed to query \"IRQ\" from the config")); if (pThis->irq < 2 || pThis->irq > 5) return PDMDEV_SET_ERROR(pDevIns, rc, N_("Invalid \"IRQ\" config setting")); Log(("busmouse: IRQ=%u fRCEnabled=%RTbool fR0Enabled=%RTbool\n", pThis->irq, pDevIns->fRCEnabled, pDevIns->fR0Enabled)); /* * Initialize the interfaces. */ pThisCC->pDevIns = pDevIns; pThisCC->Mouse.IBase.pfnQueryInterface = bmsR3Base_QueryMouseInterface; pThisCC->Mouse.IPort.pfnPutEvent = bmsR3MousePort_PutEvent; pThisCC->Mouse.IPort.pfnPutEventAbs = bmsR3MousePort_PutEventAbs; pThisCC->Mouse.IPort.pfnPutEventTouchScreen = bmsR3MousePort_PutEventMultiTouch; pThisCC->Mouse.IPort.pfnPutEventTouchPad = bmsR3MousePort_PutEventMultiTouch; /* * Create the interrupt timer. */ rc = PDMDevHlpTimerCreate(pDevIns, TMCLOCK_VIRTUAL, bmsR3TimerCallback, pThis, TMTIMER_FLAGS_DEFAULT_CRIT_SECT | TMTIMER_FLAGS_NO_RING0, "Bus Mouse", &pThis->hMouseTimer); AssertRCReturn(rc, rc); /* * Register I/O ports. */ static const IOMIOPORTDESC s_aDescs[] = { { "DATA", "DATA", NULL, NULL }, { "SIG", "SIG", NULL, NULL }, { "CTRL", "CTRL", NULL, NULL }, { "INIT", "INIT", NULL, NULL }, { NULL, NULL, NULL, NULL } }; rc = PDMDevHlpIoPortCreateAndMap(pDevIns, BMS_IO_BASE, BMS_IO_SIZE, bmsIoPortWrite, bmsIoPortRead, "Bus Mouse", s_aDescs, &pThis->hIoPorts); AssertRCReturn(rc, rc); /* * Register saved state. */ rc = PDMDevHlpSSMRegister(pDevIns, BMS_SAVED_STATE_VERSION, sizeof(*pThis), bmsR3SaveExec, bmsR3LoadExec); AssertRCReturn(rc, rc); /* * Attach to the mouse driver. */ rc = bmsR3Attach(pDevIns, 0, PDM_TACH_FLAGS_NOT_HOT_PLUG); AssertRCReturn(rc, rc); /* * Initialize the device state. */ bmsR3Reset(pDevIns); return VINF_SUCCESS; } # else /* !IN_RING3 */ /** * @callback_method_impl{PDMDEVREGR0,pfnConstruct} */ static DECLCALLBACK(int) bmsRZConstruct(PPDMDEVINS pDevIns) { PDMDEV_CHECK_VERSIONS_RETURN(pDevIns); PBMSSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PBMSSTATE); int rc = PDMDevHlpIoPortSetUpContext(pDevIns, pThis->hIoPorts, bmsIoPortWrite, bmsIoPortRead, NULL /*pvUser*/); AssertRCReturn(rc, rc); return VINF_SUCCESS; } # endif /* !IN_RING3 */ /** * The device registration structure. */ static const PDMDEVREG g_DeviceBusMouse = { /* .u32Version = */ PDM_DEVREG_VERSION, /* .uReserved0 = */ 0, /* .szName = */ "busmouse", /* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS /** @todo | PDM_DEVREG_FLAGS_RZ */ | PDM_DEVREG_FLAGS_NEW_STYLE, /* .fClass = */ PDM_DEVREG_CLASS_INPUT, /* .cMaxInstances = */ 1, /* .uSharedVersion = */ 42, /* .cbInstanceShared = */ sizeof(BMSSTATE), /* .cbInstanceCC = */ CTX_EXPR(sizeof(BMSSTATER3), 0, 0), /* .cbInstanceRC = */ 0, /* .cMaxPciDevices = */ 0, /* .cMaxMsixVectors = */ 0, /* .pszDescription = */ "Microsoft Bus Mouse controller. LUN #0 is the mouse connector.", # if defined(IN_RING3) /* .pszRCMod = */ "VBoxDDRC.rc", /* .pszR0Mod = */ "VBoxDDR0.r0", /* .pfnConstruct = */ bmsR3Construct, /* .pfnDestruct = */ NULL, /* .pfnRelocate = */ NULL, /* .pfnMemSetup = */ NULL, /* .pfnPowerOn = */ NULL, /* .pfnReset = */ bmsR3Reset, /* .pfnSuspend = */ NULL, /* .pfnResume = */ NULL, /* .pfnAttach = */ bmsR3Attach, /* .pfnDetach = */ bmsR3Detach, /* .pfnQueryInterface = */ NULL, /* .pfnInitComplete = */ NULL, /* .pfnPowerOff = */ NULL, /* .pfnSoftReset = */ NULL, /* .pfnReserved0 = */ NULL, /* .pfnReserved1 = */ NULL, /* .pfnReserved2 = */ NULL, /* .pfnReserved3 = */ NULL, /* .pfnReserved4 = */ NULL, /* .pfnReserved5 = */ NULL, /* .pfnReserved6 = */ NULL, /* .pfnReserved7 = */ NULL, # elif defined(IN_RING0) /* .pfnEarlyConstruct = */ NULL, /* .pfnConstruct = */ bmsRZConstruct, /* .pfnDestruct = */ NULL, /* .pfnFinalDestruct = */ NULL, /* .pfnRequest = */ NULL, /* .pfnReserved0 = */ NULL, /* .pfnReserved1 = */ NULL, /* .pfnReserved2 = */ NULL, /* .pfnReserved3 = */ NULL, /* .pfnReserved4 = */ NULL, /* .pfnReserved5 = */ NULL, /* .pfnReserved6 = */ NULL, /* .pfnReserved7 = */ NULL, # elif defined(IN_RC) /* .pfnConstruct = */ bmsRZConstruct, /* .pfnReserved0 = */ NULL, /* .pfnReserved1 = */ NULL, /* .pfnReserved2 = */ NULL, /* .pfnReserved3 = */ NULL, /* .pfnReserved4 = */ NULL, /* .pfnReserved5 = */ NULL, /* .pfnReserved6 = */ NULL, /* .pfnReserved7 = */ NULL, # else # error "Not in IN_RING3, IN_RING0 or IN_RC!" # endif /* .u32VersionEnd = */ PDM_DEVREG_VERSION }; # ifdef VBOX_IN_EXTPACK_R3 /** * @callback_method_impl{FNPDMVBOXDEVICESREGISTER} */ extern "C" DECLEXPORT(int) VBoxDevicesRegister(PPDMDEVREGCB pCallbacks, uint32_t u32Version) { AssertLogRelMsgReturn(u32Version >= VBOX_VERSION, ("u32Version=%#x VBOX_VERSION=%#x\n", u32Version, VBOX_VERSION), VERR_EXTPACK_VBOX_VERSION_MISMATCH); AssertLogRelMsgReturn(pCallbacks->u32Version == PDM_DEVREG_CB_VERSION, ("pCallbacks->u32Version=%#x PDM_DEVREG_CB_VERSION=%#x\n", pCallbacks->u32Version, PDM_DEVREG_CB_VERSION), VERR_VERSION_MISMATCH); return pCallbacks->pfnRegister(pCallbacks, &g_DeviceBusMouse); } # else /* !VBOX_IN_EXTPACK_R3 */ /** Pointer to the ring-0 device registrations for the Bus Mouse. */ static PCPDMDEVREGR0 g_apDevRegs[] = { &g_DeviceBusMouse, }; /** Module device registration record for the Bus Mouse. */ static PDMDEVMODREGR0 g_ModDevReg = { /* .u32Version = */ PDM_DEVMODREGR0_VERSION, /* .cDevRegs = */ RT_ELEMENTS(g_apDevRegs), /* .papDevRegs = */ &g_apDevRegs[0], /* .hMod = */ NULL, /* .ListEntry = */ { NULL, NULL }, }; DECLEXPORT(int) ModuleInit(void *hMod) { LogFlow(("VBoxBusMouseRZ/ModuleInit: %p\n", hMod)); return PDMR0DeviceRegisterModule(hMod, &g_ModDevReg); } DECLEXPORT(void) ModuleTerm(void *hMod) { LogFlow(("VBoxBusMouseRZ/ModuleTerm: %p\n", hMod)); PDMR0DeviceDeregisterModule(hMod, &g_ModDevReg); } # endif /* !VBOX_IN_EXTPACK_R3 */ #endif /* !VBOX_DEVICE_STRUCT_TESTCASE */