DevPL011.cpp@ 99196

Last change on this file since 99196 was 99152, checked in by vboxsync, 21 months ago
Devices: Updates to the ARM PL011 UART emulation, bugref:10403
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 42.3 KB

Line
1	/* $Id: DevPL011.cpp 99152 2023-03-23 18:15:43Z vboxsync $ */
2	/** @file
3	* DevSerialPL011 - ARM PL011 PrimeCell UART.
4	*
5	* The documentation for this device was taken from
6	* https://developer.arm.com/documentation/ddi0183/g/programmers-model/summary-of-registers (2023-03-21).
7	*/
8
9	/*
10	* Copyright (C) 2023 Oracle and/or its affiliates.
11	*
12	* This file is part of VirtualBox base platform packages, as
13	* available from https://www.virtualbox.org.
14	*
15	* This program is free software; you can redistribute it and/or
16	* modify it under the terms of the GNU General Public License
17	* as published by the Free Software Foundation, in version 3 of the
18	* License.
19	*
20	* This program is distributed in the hope that it will be useful, but
21	* WITHOUT ANY WARRANTY; without even the implied warranty of
22	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23	* General Public License for more details.
24	*
25	* You should have received a copy of the GNU General Public License
26	* along with this program; if not, see <https://www.gnu.org/licenses>.
27	*
28	* SPDX-License-Identifier: GPL-3.0-only
29	*/
30
31
32	/*********************************************************************************************************************************
33	* Header Files *
34	*********************************************************************************************************************************/
35	#define LOG_GROUP LOG_GROUP_DEV_SERIAL
36	#include <VBox/vmm/pdmdev.h>
37	#include <VBox/vmm/pdmserialifs.h>
38	#include <iprt/assert.h>
39	#include <iprt/uuid.h>
40	#include <iprt/string.h>
41	#include <iprt/semaphore.h>
42	#include <iprt/critsect.h>
43
44	#include "VBoxDD.h"
45
46
47	/*********************************************************************************************************************************
48	* Defined Constants And Macros *
49	*********************************************************************************************************************************/
50
51	/** The current serial code saved state version. */
52	#define PL011_SAVED_STATE_VERSION 1
53
54	/** PL011 MMIO region size in bytes. */
55	#define PL011_MMIO_SIZE _4K
56	/** Maximum size of a FIFO. */
57	#define PL011_FIFO_LENGTH_MAX 32
58
59	/** The offset of the UARTDR register from the beginning of the region. */
60	#define PL011_REG_UARTDR_INDEX 0x0
61	/** Framing error. */
62	# define PL011_REG_UARTDR_FE RT_BIT(8)
63	/** Parity error. */
64	# define PL011_REG_UARTDR_PE RT_BIT(9)
65	/** Break error. */
66	# define PL011_REG_UARTDR_BE RT_BIT(10)
67	/** Overrun error. */
68	# define PL011_REG_UARTDR_OE RT_BIT(11)
69
70	/** The offset of the UARTRSR/UARTECR register from the beginning of the region. */
71	#define PL011_REG_UARTRSR_ECR_INDEX 0x4
72	/** Framing error. */
73	# define PL011_REG_UARTRSR_ECR_FE RT_BIT(0)
74	/** Parity error. */
75	# define PL011_REG_UARTRSR_ECR_PE RT_BIT(1)
76	/** Break error. */
77	# define PL011_REG_UARTRSR_ECR_BE RT_BIT(2)
78	/** Overrun error. */
79	# define PL011_REG_UARTRSR_ECR_OE RT_BIT(3)
80
81	/** The offset of the UARTFR register from the beginning of the region. */
82	#define PL011_REG_UARTFR_INDEX 0x18
83	/** Clear to send. */
84	# define PL011_REG_UARTFR_CTS RT_BIT(0)
85	/** Data set ready. */
86	# define PL011_REG_UARTFR_DSR RT_BIT(1)
87	/** Data carrier detect. */
88	# define PL011_REG_UARTFR_DCD RT_BIT(2)
89	/** UART busy. */
90	# define PL011_REG_UARTFR_BUSY RT_BIT(3)
91	/** Receive FIFO empty. */
92	# define PL011_REG_UARTFR_RXFE RT_BIT(4)
93	/** Transmit FIFO full. */
94	# define PL011_REG_UARTFR_TXFF RT_BIT(5)
95	/** Receive FIFO full. */
96	# define PL011_REG_UARTFR_RXFF RT_BIT(6)
97	/** Transmit FIFO empty. */
98	# define PL011_REG_UARTFR_TXFE RT_BIT(7)
99	/** Ring indicator. */
100	# define PL011_REG_UARTFR_RI RT_BIT(8)
101
102	/** The offset of the UARTILPR register from the beginning of the region. */
103	#define PL011_REG_UARTILPR_INDEX 0x20
104
105	/** The offset of the UARTIBRD register from the beginning of the region. */
106	#define PL011_REG_UARTIBRD_INDEX 0x24
107
108	/** The offset of the UARTFBRD register from the beginning of the region. */
109	#define PL011_REG_UARTFBRD_INDEX 0x28
110
111	/** The offset of the UARTLCR_H register from the beginning of the region. */
112	#define PL011_REG_UARTLCR_H_INDEX 0x2c
113	/** Send break. */
114	# define PL011_REG_UARTLCR_H_BRK RT_BIT(0)
115	/** Parity enable. */
116	# define PL011_REG_UARTLCR_H_PEN RT_BIT(1)
117	/** Even parity select. */
118	# define PL011_REG_UARTLCR_H_EPS RT_BIT(2)
119	/** Two stop bits select. */
120	# define PL011_REG_UARTLCR_H_STP2 RT_BIT(3)
121	/** Enable FIFOs. */
122	# define PL011_REG_UARTLCR_H_FEN RT_BIT(4)
123	/** Word length. */
124	# define PL011_REG_UARTLCR_H_WLEN (RT_BIT(5) \| RT_BIT(6))
125	# define PL011_REG_UARTLCR_H_WLEN_GET(a_Lcr) (((a_Lcr) & PL011_REG_UARTLCR_H_WLEN) >> 5)
126	# define PL011_REG_UARTLCR_H_WLEN_SET(a_Wlen) (((a_Wlen) << 5) & PL011_REG_UARTLCR_H_WLEN)
127	/** 5 bits word length. */
128	# define PL011_REG_UARTLCR_H_WLEN_5BITS 0
129	/** 6 bits word length. */
130	# define PL011_REG_UARTLCR_H_WLEN_6BITS 1
131	/** 7 bits word length. */
132	# define PL011_REG_UARTLCR_H_WLEN_7BITS 2
133	/** 8 bits word length. */
134	# define PL011_REG_UARTLCR_H_WLEN_8BITS 3
135	/** Stick parity select. */
136	# define PL011_REG_UARTLCR_H_SPS RT_BIT(7)
137
138	/** The offset of the UARTCR register from the beginning of the region. */
139	#define PL011_REG_UARTCR_INDEX 0x30
140	/** UART enable. */
141	# define PL011_REG_UARTCR_UARTEN RT_BIT(0)
142	/** SIR enable. */
143	# define PL011_REG_UARTCR_SIREN RT_BIT(1)
144	/** SIR low-power IrDA mode. */
145	# define PL011_REG_UARTCR_SIRLP RT_BIT(2)
146	/** Loopback enable. */
147	# define PL011_REG_UARTCR_LBE RT_BIT(7)
148	/** UART transmit enable flag. */
149	# define PL011_REG_UARTCR_TXE RT_BIT(8)
150	/** UART receive enable flag. */
151	# define PL011_REG_UARTCR_RXE RT_BIT(9)
152	/** Data transmit ready. */
153	# define PL011_REG_UARTCR_DTR RT_BIT(10)
154	/** Request to send. */
155	# define PL011_REG_UARTCR_RTS RT_BIT(11)
156	/** UART Out1 modem status output (DCD). */
157	# define PL011_REG_UARTCR_OUT1_DCD RT_BIT(12)
158	/** UART Out2 modem status output (RI). */
159	# define PL011_REG_UARTCR_OUT2_RI RT_BIT(13)
160	/** RTS hardware flow control enable. */
161	# define PL011_REG_UARTCR_OUT1_RTSEn RT_BIT(14)
162	/** CTS hardware flow control enable. */
163	# define PL011_REG_UARTCR_OUT1_CTSEn RT_BIT(15)
164
165	/** The offset of the UARTIFLS register from the beginning of the region. */
166	#define PL011_REG_UARTIFLS_INDEX 0x34
167	/** Returns the Transmit Interrupt FIFO level. */
168	# define PL011_REG_UARTIFLS_TXFIFO_GET(a_Ifls) ((a_Ifls) & 0x7)
169	/** Returns the Receive Interrupt FIFO level. */
170	# define PL011_REG_UARTIFLS_RXFIFO_GET(a_Ifls) (((a_Ifls) >> 3) & 0x7)
171	/** 1/8 Fifo level. */
172	# define PL011_REG_UARTIFLS_LVL_1_8 0x0
173	/** 1/4 Fifo level. */
174	# define PL011_REG_UARTIFLS_LVL_1_4 0x1
175	/** 1/2 Fifo level. */
176	# define PL011_REG_UARTIFLS_LVL_1_2 0x2
177	/** 3/4 Fifo level. */
178	# define PL011_REG_UARTIFLS_LVL_3_4 0x3
179	/** 7/8 Fifo level. */
180	# define PL011_REG_UARTIFLS_LVL_7_8 0x4
181
182	/** The offset of the UARTIMSC register from the beginning of the region. */
183	#define PL011_REG_UARTIMSC_INDEX 0x38
184
185	/** The offset of the UARTRIS register from the beginning of the region. */
186	#define PL011_REG_UARTRIS_INDEX 0x3c
187
188	/** The offset of the UARTMIS register from the beginning of the region. */
189	#define PL011_REG_UARTMIS_INDEX 0x40
190
191	/** The offset of the UARTICR register from the beginning of the region. */
192	#define PL011_REG_UARTICR_INDEX 0x44
193
194	/** The offset of the UARTDMACR register from the beginning of the region. */
195	#define PL011_REG_UARTDMACR_INDEX 0x48
196
197	/** The offset of the UARTPeriphID0 register from the beginning of the region. */
198	#define PL011_REG_UART_PERIPH_ID0_INDEX 0xfe0
199	/** The offset of the UARTPeriphID1 register from the beginning of the region. */
200	#define PL011_REG_UART_PERIPH_ID1_INDEX 0xfe4
201	/** The offset of the UARTPeriphID2 register from the beginning of the region. */
202	#define PL011_REG_UART_PERIPH_ID2_INDEX 0xfe8
203	/** The offset of the UARTPeriphID3 register from the beginning of the region. */
204	#define PL011_REG_UART_PERIPH_ID3_INDEX 0xfec
205	/** The offset of the UARTPCellID0 register from the beginning of the region. */
206	#define PL011_REG_UART_PCELL_ID0_INDEX 0xff0
207	/** The offset of the UARTPCellID1 register from the beginning of the region. */
208	#define PL011_REG_UART_PCELL_ID1_INDEX 0xff4
209	/** The offset of the UARTPCellID2 register from the beginning of the region. */
210	#define PL011_REG_UART_PCELL_ID2_INDEX 0xff8
211	/** The offset of the UARTPCellID3 register from the beginning of the region. */
212	#define PL011_REG_UART_PCELL_ID3_INDEX 0xffc
213
214	/** Set the specified bits in the given register. */
215	#define PL011_REG_SET(a_Reg, a_Set) ((a_Reg) \|= (a_Set))
216	/** Clear the specified bits in the given register. */
217	#define PL011_REG_CLR(a_Reg, a_Clr) ((a_Reg) &= ~(a_Clr))
218
219
220	/*********************************************************************************************************************************
221	* Structures and Typedefs *
222	*********************************************************************************************************************************/
223
224	/**
225	* UART FIFO.
226	*/
227	typedef struct PL011FIFO
228	{
229	/** Fifo size configured. */
230	uint8_t cbMax;
231	/** Current amount of bytes used. */
232	uint8_t cbUsed;
233	/** Next index to write to. */
234	uint8_t offWrite;
235	/** Next index to read from. */
236	uint8_t offRead;
237	/** The interrupt trigger level (only used for the receive FIFO). */
238	uint8_t cbItl;
239	/** The data in the FIFO. */
240	uint8_t abBuf[PL011_FIFO_LENGTH_MAX];
241	/** Alignment to a 4 byte boundary. */
242	uint8_t au8Alignment0[3];
243	} PL011FIFO;
244	/** Pointer to a FIFO. */
245	typedef PL011FIFO *PPL011FIFO;
246
247
248	/**
249	* Shared serial device state.
250	*/
251	typedef struct DEVPL011
252	{
253	/** The MMIO handle. */
254	IOMMMIOHANDLE hMmio;
255	/** The base MMIO address the device is registered at. */
256	RTGCPHYS GCPhysMmioBase;
257	/** The IRQ value. */
258	uint16_t u16Irq;
259
260	/** @name Registers.
261	* @{ */
262	uint8_t uRegDr;
263	/** UART control register. */
264	uint16_t uRegCr;
265	/** UART flag register. */
266	uint16_t uRegFr;
267	/** UART integer baud rate register. */
268	uint16_t uRegIbrd;
269	/** UART fractional baud rate register. */
270	uint16_t uRegFbrd;
271	/** UART line control register. */
272	uint16_t uRegLcrH;
273	/** @} */
274
275	/** Time it takes to transmit/receive a single symbol in timer ticks. */
276	uint64_t cSymbolXferTicks;
277	/** Number of bytes available for reading from the layer below. */
278	volatile uint32_t cbAvailRdr;
279
280	/** The transmit FIFO. */
281	PL011FIFO FifoXmit;
282	/** The receive FIFO. */
283	PL011FIFO FifoRecv;
284	} DEVPL011;
285	/** Pointer to the shared serial device state. */
286	typedef DEVPL011 *PDEVPL011;
287
288
289	/**
290	* Serial device state for ring-3.
291	*/
292	typedef struct DEVPL011R3
293	{
294	/** LUN\#0: The base interface. */
295	PDMIBASE IBase;
296	/** LUN\#0: The serial port interface. */
297	PDMISERIALPORT ISerialPort;
298	/** Pointer to the attached base driver. */
299	R3PTRTYPE(PPDMIBASE) pDrvBase;
300	/** Pointer to the attached serial driver. */
301	R3PTRTYPE(PPDMISERIALCONNECTOR) pDrvSerial;
302	/** Pointer to the device instance - only for getting our bearings in
303	* interface methods. */
304	PPDMDEVINS pDevIns;
305	} DEVPL011R3;
306	/** Pointer to the serial device state for ring-3. */
307	typedef DEVPL011R3 *PDEVPL011R3;
308
309
310	/**
311	* Serial device state for ring-0.
312	*/
313	typedef struct DEVPL011R0
314	{
315	/** Dummy .*/
316	uint8_t bDummy;
317	} DEVPL011R0;
318	/** Pointer to the serial device state for ring-0. */
319	typedef DEVPL011R0 *PDEVPL011R0;
320
321
322	/**
323	* Serial device state for raw-mode.
324	*/
325	typedef struct DEVPL011RC
326	{
327	/** Dummy .*/
328	uint8_t bDummy;
329	} DEVPL011RC;
330	/** Pointer to the serial device state for raw-mode. */
331	typedef DEVPL011RC *PDEVPL011RC;
332
333	/** The serial device state for the current context. */
334	typedef CTX_SUFF(DEVPL011) DEVPL011CC;
335	/** Pointer to the serial device state for the current context. */
336	typedef CTX_SUFF(PDEVPL011) PDEVPL011CC;
337
338
339	/*********************************************************************************************************************************
340	* Global Variables *
341	*********************************************************************************************************************************/
342
343	#ifdef IN_RING3
344	/**
345	* String versions of the parity enum.
346	*/
347	static const char *s_aszParity[] =
348	{
349	"INVALID",
350	"NONE",
351	"EVEN",
352	"ODD",
353	"MARK",
354	"SPACE",
355	"INVALID"
356	};
357
358
359	/**
360	* String versions of the stop bits enum.
361	*/
362	static const char *s_aszStopBits[] =
363	{
364	"INVALID",
365	"1",
366	"INVALID",
367	"2",
368	"INVALID"
369	};
370	#endif
371
372
373	/*********************************************************************************************************************************
374	* Internal Functions *
375	*********************************************************************************************************************************/
376
377	#ifndef VBOX_DEVICE_STRUCT_TESTCASE
378
379	/**
380	* Updates the IRQ state based on the current device state.
381	*
382	* @returns nothing.
383	* @param pDevIns The device instance.
384	* @param pThis The shared serial port instance data.
385	* @param pThisCC The serial port instance data for the current context.
386	*/
387	static void pl011IrqUpdate(PPDMDEVINS pDevIns, PDEVPL011 pThis, PDEVPL011CC pThisCC)
388	{
389	LogFlowFunc(("pThis=%#p\n", pThis));
390	RT_NOREF(pDevIns, pThis, pThisCC);
391	}
392
393
394	/**
395	* Transmits the given byte.
396	*
397	* @returns Strict VBox status code.
398	* @param pDevIns The device instance.
399	* @param pThis The shared serial port instance data.
400	* @param pThisCC The serial port instance data for the current context.
401	* @param bVal Byte to transmit.
402	*/
403	static VBOXSTRICTRC pl011Xmit(PPDMDEVINS pDevIns, PDEVPL011CC pThisCC, PDEVPL011 pThis, uint8_t bVal)
404	{
405	int rc = VINF_SUCCESS;
406	#ifdef IN_RING3
407	bool fNotifyDrv = false;
408	#endif
409
410	if (pThis->uRegLcrH & PL011_REG_UARTLCR_H_FEN)
411	{
412	AssertReleaseFailed(); /** @todo */
413	}
414	else
415	{
416	/* Notify the lower driver about available data only if the register was empty before. */
417	if (!(pThis->uRegFr & PL011_REG_UARTFR_BUSY))
418	{
419	#ifndef IN_RING3
420	rc = VINF_IOM_R3_IOPORT_WRITE;
421	#else
422	pThis->uRegDr = bVal;
423	pThis->uRegFr \|= PL011_REG_UARTFR_BUSY;
424	pl011IrqUpdate(pDevIns, pThis, pThisCC);
425	fNotifyDrv = true;
426	#endif
427	}
428	else
429	pThis->uRegDr = bVal;
430	}
431
432	#ifdef IN_RING3
433	if (fNotifyDrv)
434	{
435	/* Leave the device critical section before calling into the lower driver. */
436	PDMDevHlpCritSectLeave(pDevIns, pDevIns->pCritSectRoR3);
437
438	if ( pThisCC->pDrvSerial
439	&& !(pThis->uRegCr & PL011_REG_UARTCR_LBE))
440	{
441	int rc2 = pThisCC->pDrvSerial->pfnDataAvailWrNotify(pThisCC->pDrvSerial);
442	if (RT_FAILURE(rc2))
443	LogRelMax(10, ("PL011#%d: Failed to send data with %Rrc\n", pDevIns->iInstance, rc2));
444	}
445	else
446	{
447	AssertReleaseFailed(); /** @todo */
448	//PDMDevHlpTimerSetRelative(pDevIns, pThis->hTimerTxUnconnected, pThis->cSymbolXferTicks, NULL);
449	}
450
451	rc = PDMDevHlpCritSectEnter(pDevIns, pDevIns->pCritSectRoR3, VINF_SUCCESS);
452	}
453	#endif
454
455	return rc;
456	}
457
458
459	#ifdef IN_RING3
460	/**
461	* Updates the serial port parameters of the attached driver with the current configuration.
462	*
463	* @returns nothing.
464	* @param pDevIns The device instance.
465	* @param pThis The shared serial port instance data.
466	* @param pThisCC The serial port instance data for the current context.
467	*/
468	static void pl011R3ParamsUpdate(PPDMDEVINS pDevIns, PDEVPL011 pThis, PDEVPL011CC pThisCC)
469	{
470	if ( pThis->uRegIbrd != 0
471	&& pThisCC->pDrvSerial)
472	{
473	uint32_t uBps = 460800 / pThis->uRegIbrd; /** @todo This is for a 7.3728MHz clock. */
474	unsigned cDataBits = PL011_REG_UARTLCR_H_WLEN_GET(pThis->uRegLcrH) + 5;
475	uint32_t cFrameBits = cDataBits;
476	PDMSERIALSTOPBITS enmStopBits = PDMSERIALSTOPBITS_ONE;
477	PDMSERIALPARITY enmParity = PDMSERIALPARITY_NONE;
478
479	if (pThis->uRegLcrH & PL011_REG_UARTLCR_H_STP2)
480	{
481	enmStopBits = PDMSERIALSTOPBITS_TWO;
482	cFrameBits += 2;
483	}
484	else
485	cFrameBits++;
486
487	if (pThis->uRegLcrH & PL011_REG_UARTLCR_H_PEN)
488	{
489	/* Select the correct parity mode based on the even and stick parity bits. */
490	switch (pThis->uRegLcrH & (PL011_REG_UARTLCR_H_EPS \| PL011_REG_UARTLCR_H_SPS))
491	{
492	case 0:
493	enmParity = PDMSERIALPARITY_ODD;
494	break;
495	case PL011_REG_UARTLCR_H_EPS:
496	enmParity = PDMSERIALPARITY_EVEN;
497	break;
498	case PL011_REG_UARTLCR_H_EPS \| PL011_REG_UARTLCR_H_SPS:
499	enmParity = PDMSERIALPARITY_SPACE;
500	break;
501	case PL011_REG_UARTLCR_H_SPS:
502	enmParity = PDMSERIALPARITY_MARK;
503	break;
504	default:
505	/* We should never get here as all cases where caught earlier. */
506	AssertMsgFailed(("This shouldn't happen at all: %#x\n",
507	pThis->uRegLcrH & (PL011_REG_UARTLCR_H_EPS \| PL011_REG_UARTLCR_H_SPS)));
508	}
509
510	cFrameBits++;
511	}
512
513	//uint64_t uTimerFreq = PDMDevHlpTimerGetFreq(pDevIns, pThis->hTimerRcvFifoTimeout);
514	//pThis->cSymbolXferTicks = (uTimerFreq / uBps) * cFrameBits;
515
516	LogFlowFunc(("Changing parameters to: %u,%s,%u,%s\n",
517	uBps, s_aszParity[enmParity], cDataBits, s_aszStopBits[enmStopBits]));
518
519	int rc = pThisCC->pDrvSerial->pfnChgParams(pThisCC->pDrvSerial, uBps, enmParity, cDataBits, enmStopBits);
520	if (RT_FAILURE(rc))
521	LogRelMax(10, ("Serial#%d: Failed to change parameters to %u,%s,%u,%s -> %Rrc\n",
522	pDevIns->iInstance, uBps, s_aszParity[enmParity], cDataBits, s_aszStopBits[enmStopBits], rc));
523
524	/* Changed parameters will flush all receive queues, so there won't be any data to read even if indicated. */
525	pThisCC->pDrvSerial->pfnQueuesFlush(pThisCC->pDrvSerial, true /fQueueRecv/, false /fQueueXmit/);
526	ASMAtomicWriteU32(&pThis->cbAvailRdr, 0);
527	PL011_REG_CLR(pThis->uRegFr, PL011_REG_UARTFR_BUSY);
528	}
529	}
530
531
532	/**
533	* Reset the transmit/receive related bits to the standard values
534	* (after a detach/attach/reset event).
535	*
536	* @returns nothing.
537	* @param pDevIns The device instance.
538	* @param pThis The shared serial port instance data.
539	* @param pThisCC The serial port instance data for the current context.
540	*/
541	static void pl011R3XferReset(PPDMDEVINS pDevIns, PDEVPL011 pThis, PDEVPL011CC pThisCC)
542	{
543	//PDMDevHlpTimerStop(pDevIns, pThis->hTimerRcvFifoTimeout);
544	//PDMDevHlpTimerStop(pDevIns, pThis->hTimerTxUnconnected);
545	//pThis->uRegLsr = UART_REG_LSR_THRE \| UART_REG_LSR_TEMT;
546
547	//uartFifoClear(&pThis->FifoXmit);
548	//uartFifoClear(&pThis->FifoRecv);
549	pl011R3ParamsUpdate(pDevIns, pThis, pThisCC);
550	pl011IrqUpdate(pDevIns, pThis, pThisCC);
551
552	if (pThisCC->pDrvSerial)
553	{
554	/* Set the modem lines to reflect the current state. */
555	int rc = pThisCC->pDrvSerial->pfnChgModemLines(pThisCC->pDrvSerial, false /fRts/, false /fDtr/);
556	if (RT_FAILURE(rc))
557	LogRel(("PL011#%d: Failed to set modem lines with %Rrc during reset\n",
558	pDevIns->iInstance, rc));
559
560	uint32_t fStsLines = 0;
561	rc = pThisCC->pDrvSerial->pfnQueryStsLines(pThisCC->pDrvSerial, &fStsLines);
562	if (RT_SUCCESS(rc))
563	{} //uartR3StsLinesUpdate(pDevIns, pThis, pThisCC, fStsLines);
564	else
565	LogRel(("PL011#%d: Failed to query status line status with %Rrc during reset\n",
566	pDevIns->iInstance, rc));
567	}
568
569	}
570
571
572	/**
573	* Tries to copy the specified amount of data from the active TX queue (register or FIFO).
574	*
575	* @returns nothing.
576	* @param pDevIns The device instance.
577	* @param pThis The shared serial port instance data.
578	* @param pThisCC The serial port instance data for the current context.
579	* @param pvBuf Where to store the data.
580	* @param cbRead How much to read from the TX queue.
581	* @param pcbRead Where to store the amount of data read.
582	*/
583	static void pl011R3TxQueueCopyFrom(PPDMDEVINS pDevIns, PDEVPL011 pThis, PDEVPL011CC pThisCC,
584	void pvBuf, size_t cbRead, size_t pcbRead)
585	{
586	if (pThis->uRegLcrH & PL011_REG_UARTLCR_H_FEN)
587	{
588	RT_NOREF(cbRead);
589	AssertReleaseFailed();
590	}
591	else if (pThis->uRegFr & PL011_REG_UARTFR_BUSY)
592	{
593	(uint8_t )pvBuf = pThis->uRegDr;
594	*pcbRead = 1;
595	PL011_REG_CLR(pThis->uRegFr, PL011_REG_UARTFR_BUSY);
596	pl011IrqUpdate(pDevIns, pThis, pThisCC);
597	}
598	else
599	{
600	/*
601	* This can happen if there was data in the FIFO when the connection was closed,
602	* indicate this condition to the lower driver by returning 0 bytes.
603	*/
604	*pcbRead = 0;
605	}
606	}
607	#endif
608
609
610	/* -=-=-=-=-=- MMIO callbacks -=-=-=-=-=- */
611
612
613	/**
614	* @callback_method_impl{FNIOMMMIONEWREAD}
615	*/
616	static DECLCALLBACK(VBOXSTRICTRC) pl011MmioRead(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS off, void pv, unsigned cb)
617	{
618	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
619	NOREF(pvUser);
620	Assert(cb == 4 \|\| cb == 8);
621	Assert(!(off & (cb - 1)));
622
623	LogFlowFunc(("%RGp cb=%u\n", off, cb));
624
625	uint32_t u32Val = 0;
626	VBOXSTRICTRC rc = VINF_SUCCESS;
627	switch (off)
628	{
629	case PL011_REG_UARTFR_INDEX:
630	u32Val = pThis->uRegFr;
631	break;
632	case PL011_REG_UARTCR_INDEX:
633	u32Val = pThis->uRegCr;
634	break;
635	case PL011_REG_UART_PERIPH_ID0_INDEX:
636	u32Val = 0x11;
637	break;
638	case PL011_REG_UART_PERIPH_ID1_INDEX:
639	u32Val = 0x10;
640	break;
641	case PL011_REG_UART_PERIPH_ID2_INDEX:
642	u32Val = 0x34; /* r1p5 */
643	break;
644	case PL011_REG_UART_PERIPH_ID3_INDEX:
645	u32Val = 0x00;
646	break;
647	case PL011_REG_UART_PCELL_ID0_INDEX:
648	u32Val = 0x0d;
649	break;
650	case PL011_REG_UART_PCELL_ID1_INDEX:
651	u32Val = 0xf0;
652	break;
653	case PL011_REG_UART_PCELL_ID2_INDEX:
654	u32Val = 0x05;
655	break;
656	case PL011_REG_UART_PCELL_ID3_INDEX:
657	u32Val = 0xb1;
658	break;
659	default:
660	break;
661	}
662
663	if (rc == VINF_SUCCESS)
664	(uint32_t )pv = u32Val;
665
666	return rc;
667	}
668
669
670	/**
671	* @callback_method_impl{FNIOMMMIONEWWRITE}
672	*/
673	static DECLCALLBACK(VBOXSTRICTRC) pl011MmioWrite(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS off, void const pv, unsigned cb)
674	{
675	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
676	PDEVPL011CC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPL011CC);
677	LogFlowFunc(("cb=%u reg=%RGp val=%llx\n", cb, off, cb == 4 ? (uint32_t )pv : cb == 8 ? (uint64_t )pv : 0xdeadbeef));
678	RT_NOREF(pvUser);
679	Assert(cb == 4 \|\| cb == 8);
680	Assert(!(off & (cb - 1)));
681
682	VBOXSTRICTRC rcStrict = VINF_SUCCESS;
683	uint32_t u32Val = (uint32_t )pv;
684	switch (off)
685	{
686	case PL011_REG_UARTDR_INDEX:
687	if ( (pThis->uRegCr & PL011_REG_UARTCR_UARTEN)
688	&& (pThis->uRegCr & PL011_REG_UARTCR_TXE))
689	rcStrict = pl011Xmit(pDevIns, pThisCC, pThis, (uint8_t)u32Val);
690	break;
691	default:
692	break;
693
694	}
695	return rcStrict;
696	}
697
698
699	#ifdef IN_RING3
700
701	/* -=-=-=-=-=-=-=-=- PDMISERIALPORT on LUN#0 -=-=-=-=-=-=-=-=- */
702
703
704	/**
705	* @interface_method_impl{PDMISERIALPORT,pfnDataAvailRdrNotify}
706	*/
707	static DECLCALLBACK(int) pl011R3DataAvailRdrNotify(PPDMISERIALPORT pInterface, size_t cbAvail)
708	{
709	LogFlowFunc(("pInterface=%#p cbAvail=%zu\n", pInterface, cbAvail));
710	PDEVPL011CC pThisCC = RT_FROM_MEMBER(pInterface, DEVPL011CC, ISerialPort);
711	PPDMDEVINS pDevIns = pThisCC->pDevIns;
712	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
713
714	AssertMsg((uint32_t)cbAvail == cbAvail, ("Too much data available\n"));
715
716	int const rcLock = PDMDevHlpCritSectEnter(pDevIns, pDevIns->pCritSectRoR3, VERR_IGNORED);
717	PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, pDevIns->pCritSectRoR3, rcLock);
718
719	/** @todo */
720	RT_NOREF(pThis);
721
722	PDMDevHlpCritSectLeave(pDevIns, pDevIns->pCritSectRoR3);
723	return VINF_SUCCESS;
724	}
725
726
727	/**
728	* @interface_method_impl{PDMISERIALPORT,pfnDataSentNotify}
729	*/
730	static DECLCALLBACK(int) pl011R3DataSentNotify(PPDMISERIALPORT pInterface)
731	{
732	LogFlowFunc(("pInterface=%#p\n", pInterface));
733	PDEVPL011CC pThisCC = RT_FROM_MEMBER(pInterface, DEVPL011CC, ISerialPort);
734	PPDMDEVINS pDevIns = pThisCC->pDevIns;
735	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
736
737	/* Set the transmitter empty bit because everything was sent. */
738	int const rcLock = PDMDevHlpCritSectEnter(pDevIns, pDevIns->pCritSectRoR3, VERR_IGNORED);
739	PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, pDevIns->pCritSectRoR3, rcLock);
740
741	/** @todo */
742	RT_NOREF(pThis);
743
744	PDMDevHlpCritSectLeave(pDevIns, pDevIns->pCritSectRoR3);
745	return VINF_SUCCESS;
746	}
747
748
749	/**
750	* @interface_method_impl{PDMISERIALPORT,pfnReadWr}
751	*/
752	static DECLCALLBACK(int) pl011R3ReadWr(PPDMISERIALPORT pInterface, void pvBuf, size_t cbRead, size_t pcbRead)
753	{
754	LogFlowFunc(("pInterface=%#p pvBuf=%#p cbRead=%zu pcbRead=%#p\n", pInterface, pvBuf, cbRead, pcbRead));
755	PDEVPL011CC pThisCC = RT_FROM_MEMBER(pInterface, DEVPL011CC, ISerialPort);
756	PPDMDEVINS pDevIns = pThisCC->pDevIns;
757	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
758
759	AssertReturn(cbRead > 0, VERR_INVALID_PARAMETER);
760
761	int const rcLock = PDMDevHlpCritSectEnter(pDevIns, pDevIns->pCritSectRoR3, VERR_IGNORED);
762	PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, pDevIns->pCritSectRoR3, rcLock);
763
764	pl011R3TxQueueCopyFrom(pDevIns, pThis, pThisCC, pvBuf, cbRead, pcbRead);
765
766	PDMDevHlpCritSectLeave(pDevIns, pDevIns->pCritSectRoR3);
767	LogFlowFunc(("-> VINF_SUCCESS{pcbRead=%zu}\n", pcbRead));
768	return VINF_SUCCESS;
769	}
770
771
772	/**
773	* @interface_method_impl{PDMISERIALPORT,pfnNotifyStsLinesChanged}
774	*/
775	static DECLCALLBACK(int) pl011R3NotifyStsLinesChanged(PPDMISERIALPORT pInterface, uint32_t fNewStatusLines)
776	{
777	LogFlowFunc(("pInterface=%#p fNewStatusLines=%#x\n", pInterface, fNewStatusLines));
778	PDEVPL011CC pThisCC = RT_FROM_MEMBER(pInterface, DEVPL011CC, ISerialPort);
779	PPDMDEVINS pDevIns = pThisCC->pDevIns;
780	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
781
782	int const rcLock = PDMDevHlpCritSectEnter(pDevIns, pDevIns->pCritSectRoR3, VERR_IGNORED);
783	PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, pDevIns->pCritSectRoR3, rcLock);
784
785	/** @todo */
786	RT_NOREF(pThis);
787
788	PDMDevHlpCritSectLeave(pDevIns, pDevIns->pCritSectRoR3);
789	return VINF_SUCCESS;
790	}
791
792
793	/**
794	* @interface_method_impl{PDMISERIALPORT,pfnNotifyBrk}
795	*/
796	static DECLCALLBACK(int) pl011R3NotifyBrk(PPDMISERIALPORT pInterface)
797	{
798	LogFlowFunc(("pInterface=%#p\n", pInterface));
799	PDEVPL011CC pThisCC = RT_FROM_MEMBER(pInterface, DEVPL011CC, ISerialPort);
800	PPDMDEVINS pDevIns = pThisCC->pDevIns;
801	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
802
803	int const rcLock = PDMDevHlpCritSectEnter(pDevIns, pDevIns->pCritSectRoR3, VERR_IGNORED);
804	PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, pDevIns->pCritSectRoR3, rcLock);
805
806	/** @todo */
807	RT_NOREF(pThis);
808
809	PDMDevHlpCritSectLeave(pDevIns, pDevIns->pCritSectRoR3);
810	return VINF_SUCCESS;
811	}
812
813
814	/* -=-=-=-=-=-=-=-=- PDMIBASE -=-=-=-=-=-=-=-=- */
815
816	/**
817	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
818	*/
819	static DECLCALLBACK(void ) pl011R3QueryInterface(PPDMIBASE pInterface, const char pszIID)
820	{
821	PDEVPL011CC pThisCC = RT_FROM_MEMBER(pInterface, DEVPL011CC, IBase);
822	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThisCC->IBase);
823	PDMIBASE_RETURN_INTERFACE(pszIID, PDMISERIALPORT, &pThisCC->ISerialPort);
824	return NULL;
825	}
826
827
828	/* -=-=-=-=-=-=-=-=- Saved State -=-=-=-=-=-=-=-=- */
829
830	/**
831	* @callback_method_impl{FNSSMDEVLIVEEXEC}
832	*/
833	static DECLCALLBACK(int) pl011R3LiveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass)
834	{
835	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
836	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
837	RT_NOREF(uPass);
838
839	pHlp->pfnSSMPutU16(pSSM, pThis->u16Irq);
840	pHlp->pfnSSMPutGCPhys(pSSM, pThis->GCPhysMmioBase);
841	return VINF_SSM_DONT_CALL_AGAIN;
842	}
843
844
845	/**
846	* @callback_method_impl{FNSSMDEVSAVEEXEC}
847	*/
848	static DECLCALLBACK(int) pl011R3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
849	{
850	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
851	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
852
853	pHlp->pfnSSMPutU16(pSSM, pThis->u16Irq);
854	pHlp->pfnSSMPutGCPhys(pSSM, pThis->GCPhysMmioBase);
855
856	return pHlp->pfnSSMPutU32(pSSM, UINT32_MAX); /* sanity/terminator */
857	}
858
859
860	/**
861	* @callback_method_impl{FNSSMDEVLOADEXEC}
862	*/
863	static DECLCALLBACK(int) pl011R3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
864	{
865	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
866	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
867	uint16_t u16Irq;
868	RTGCPHYS GCPhysMmioBase;
869	int rc;
870
871	RT_NOREF(uVersion);
872
873	pHlp->pfnSSMGetU16( pSSM, &u16Irq);
874	pHlp->pfnSSMGetGCPhys(pSSM, &GCPhysMmioBase);
875	if (uPass == SSM_PASS_FINAL)
876	{
877	rc = VERR_NOT_IMPLEMENTED;
878	AssertRCReturn(rc, rc);
879	}
880
881	if (uPass == SSM_PASS_FINAL)
882	{
883	/* The marker. */
884	uint32_t u32;
885	rc = pHlp->pfnSSMGetU32(pSSM, &u32);
886	AssertRCReturn(rc, rc);
887	AssertMsgReturn(u32 == UINT32_MAX, ("%#x\n", u32), VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
888	}
889
890	/*
891	* Check the config.
892	*/
893	if ( pThis->u16Irq != u16Irq
894	\|\| pThis->GCPhysMmioBase != GCPhysMmioBase)
895	return pHlp->pfnSSMSetCfgError(pSSM, RT_SRC_POS,
896	N_("Config mismatch - saved Irq=%#x GCPhysMmioBase=%#RGp; configured Irq=%#x GCPhysMmioBase=%#RGp"),
897	u16Irq, GCPhysMmioBase, pThis->u16Irq, pThis->GCPhysMmioBase);
898
899	return VINF_SUCCESS;
900	}
901
902
903	/**
904	* @callback_method_impl{FNSSMDEVLOADDONE}
905	*/
906	static DECLCALLBACK(int) pl011R3LoadDone(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
907	{
908	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
909	PDEVPL011CC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPL011CC);
910
911	RT_NOREF(pThis, pThisCC, pSSM);
912	return VERR_NOT_IMPLEMENTED;
913	}
914
915
916	/* -=-=-=-=-=-=-=-=- PDMDEVREG -=-=-=-=-=-=-=-=- */
917
918	/**
919	* @interface_method_impl{PDMDEVREG,pfnReset}
920	*/
921	static DECLCALLBACK(void) pl011R3Reset(PPDMDEVINS pDevIns)
922	{
923	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
924	PDEVPL011CC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPL011CC);
925
926	pThis->uRegDr = 0;
927	/* UARTEN is normally 0 on reset but UEFI doesn't set it causing the serial port to not log anything. */
928	pThis->uRegCr = PL011_REG_UARTCR_TXE \| PL011_REG_UARTCR_RXE \| PL011_REG_UARTCR_UARTEN;
929	pThis->uRegFr = PL011_REG_UARTFR_TXFE \| PL011_REG_UARTFR_RXFE;
930	pThis->uRegIbrd = 0;
931	pThis->uRegFbrd = 0;
932	pThis->uRegLcrH = 0;
933	/** @todo */
934
935	pl011R3XferReset(pDevIns, pThis, pThisCC);
936	}
937
938
939	/**
940	* @interface_method_impl{PDMDEVREG,pfnAttach}
941	*/
942	static DECLCALLBACK(int) pl011R3Attach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
943	{
944	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
945	PDEVPL011CC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPL011CC);
946	RT_NOREF(fFlags);
947	AssertReturn(iLUN == 0, VERR_PDM_LUN_NOT_FOUND);
948
949	int rc = PDMDevHlpDriverAttach(pDevIns, iLUN, &pThisCC->IBase, &pThisCC->pDrvBase, "PL011 Char");
950	if (RT_SUCCESS(rc))
951	{
952	pThisCC->pDrvSerial = PDMIBASE_QUERY_INTERFACE(pThisCC->pDrvBase, PDMISERIALCONNECTOR);
953	if (!pThisCC->pDrvSerial)
954	{
955	AssertLogRelMsgFailed(("Configuration error: instance %d has no serial interface!\n", pDevIns->iInstance));
956	return VERR_PDM_MISSING_INTERFACE;
957	}
958	rc = PDMDevHlpCritSectEnter(pDevIns, pDevIns->pCritSectRoR3, VERR_IGNORED);
959	if (RT_SUCCESS(rc))
960	{
961	pl011R3XferReset(pDevIns, pThis, pThisCC);
962	PDMDevHlpCritSectLeave(pDevIns, pDevIns->pCritSectRoR3);
963	}
964	}
965	else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
966	{
967	pThisCC->pDrvBase = NULL;
968	pThisCC->pDrvSerial = NULL;
969	rc = PDMDevHlpCritSectEnter(pDevIns, pDevIns->pCritSectRoR3, VERR_IGNORED);
970	if (RT_SUCCESS(rc))
971	{
972	pl011R3XferReset(pDevIns, pThis, pThisCC);
973	PDMDevHlpCritSectLeave(pDevIns, pDevIns->pCritSectRoR3);
974	}
975	LogRel(("PL011#%d: no unit\n", pDevIns->iInstance));
976	}
977	else /* Don't call VMSetError here as we assume that the driver already set an appropriate error */
978	LogRel(("PL011#%d: Failed to attach to serial driver. rc=%Rrc\n", pDevIns->iInstance, rc));
979
980	return rc;
981	}
982
983
984	/**
985	* @interface_method_impl{PDMDEVREG,pfnDetach}
986	*/
987	static DECLCALLBACK(void) pl011R3Detach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
988	{
989	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
990	PDEVPL011CC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPL011CC);
991	RT_NOREF(fFlags);
992	AssertReturnVoid(iLUN == 0);
993
994	/* Zero out important members. */
995	pThisCC->pDrvBase = NULL;
996	pThisCC->pDrvSerial = NULL;
997
998	int const rcLock = PDMDevHlpCritSectEnter(pDevIns, pDevIns->pCritSectRoR3, VERR_IGNORED);
999	PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, pDevIns->pCritSectRoR3, rcLock);
1000
1001	pl011R3XferReset(pDevIns, pThis, pThisCC);
1002
1003	PDMDevHlpCritSectLeave(pDevIns, pDevIns->pCritSectRoR3);
1004	}
1005
1006
1007	/**
1008	* @interface_method_impl{PDMDEVREG,pfnDestruct}
1009	*/
1010	static DECLCALLBACK(int) pl011R3Destruct(PPDMDEVINS pDevIns)
1011	{
1012	PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
1013
1014	/* Nothing to do. */
1015	return VINF_SUCCESS;
1016	}
1017
1018
1019	/**
1020	* @interface_method_impl{PDMDEVREG,pfnConstruct}
1021	*/
1022	static DECLCALLBACK(int) pl011R3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
1023	{
1024	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
1025	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
1026	PDEVPL011CC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPL011CC);
1027	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
1028	int rc;
1029
1030	Assert(iInstance < 4);
1031
1032	pThisCC->pDevIns = pDevIns;
1033
1034	/* IBase */
1035	pThisCC->IBase.pfnQueryInterface = pl011R3QueryInterface;
1036
1037	/* ISerialPort */
1038	pThisCC->ISerialPort.pfnDataAvailRdrNotify = pl011R3DataAvailRdrNotify;
1039	pThisCC->ISerialPort.pfnDataSentNotify = pl011R3DataSentNotify;
1040	pThisCC->ISerialPort.pfnReadWr = pl011R3ReadWr;
1041	pThisCC->ISerialPort.pfnNotifyStsLinesChanged = pl011R3NotifyStsLinesChanged;
1042	pThisCC->ISerialPort.pfnNotifyBrk = pl011R3NotifyBrk;
1043
1044	/*
1045	* Validate and read the configuration.
1046	*/
1047	PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "Irq\|MmioBase\|YieldOnLSRRead", "");
1048
1049	bool fYieldOnLSRRead = false;
1050	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "YieldOnLSRRead", &fYieldOnLSRRead, false);
1051	if (RT_FAILURE(rc))
1052	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"YieldOnLSRRead\" value"));
1053
1054	uint16_t u16Irq = 0;
1055	rc = pHlp->pfnCFGMQueryU16(pCfg, "Irq", &u16Irq);
1056	if (RT_FAILURE(rc))
1057	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"Irq\" value"));
1058
1059	RTGCPHYS GCPhysMmioBase = 0;
1060	rc = pHlp->pfnCFGMQueryU64(pCfg, "MmioBase", &GCPhysMmioBase);
1061	if (RT_FAILURE(rc))
1062	return PDMDEV_SET_ERROR(pDevIns, rc,
1063	N_("Configuration error: Failed to get the \"IOBase\" value"));
1064
1065	pThis->u16Irq = u16Irq;
1066	pThis->GCPhysMmioBase = GCPhysMmioBase;
1067
1068	/*
1069	* Register and map the MMIO region.
1070	*/
1071	rc = PDMDevHlpMmioCreateAndMap(pDevIns, GCPhysMmioBase, PL011_MMIO_SIZE, pl011MmioWrite, pl011MmioRead,
1072	IOMMMIO_FLAGS_READ_DWORD \| IOMMMIO_FLAGS_WRITE_DWORD_ZEROED, "PL011", &pThis->hMmio);
1073	AssertRCReturn(rc, rc);
1074
1075
1076	/*
1077	* Saved state.
1078	*/
1079	rc = PDMDevHlpSSMRegisterEx(pDevIns, PL011_SAVED_STATE_VERSION, sizeof(*pThis), NULL,
1080	NULL, pl011R3LiveExec, NULL,
1081	NULL, pl011R3SaveExec, NULL,
1082	NULL, pl011R3LoadExec, pl011R3LoadDone);
1083	AssertRCReturn(rc, rc);
1084
1085	/*
1086	* Attach the char driver and get the interfaces.
1087	*/
1088	rc = PDMDevHlpDriverAttach(pDevIns, 0 /iLUN/, &pThisCC->IBase, &pThisCC->pDrvBase, "UART");
1089	if (RT_SUCCESS(rc))
1090	{
1091	pThisCC->pDrvSerial = PDMIBASE_QUERY_INTERFACE(pThisCC->pDrvBase, PDMISERIALCONNECTOR);
1092	if (!pThisCC->pDrvSerial)
1093	{
1094	AssertLogRelMsgFailed(("Configuration error: instance %d has no serial interface!\n", iInstance));
1095	return VERR_PDM_MISSING_INTERFACE;
1096	}
1097	}
1098	else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
1099	{
1100	pThisCC->pDrvBase = NULL;
1101	pThisCC->pDrvSerial = NULL;
1102	LogRel(("PL011#%d: no unit\n", iInstance));
1103	}
1104	else
1105	{
1106	AssertLogRelMsgFailed(("PL011#%d: Failed to attach to char driver. rc=%Rrc\n", iInstance, rc));
1107	/* Don't call VMSetError here as we assume that the driver already set an appropriate error */
1108	return rc;
1109	}
1110
1111	pl011R3Reset(pDevIns);
1112	return VINF_SUCCESS;
1113	}
1114
1115	#else /* !IN_RING3 */
1116
1117	/**
1118	* @callback_method_impl{PDMDEVREGR0,pfnConstruct}
1119	*/
1120	static DECLCALLBACK(int) pl011RZConstruct(PPDMDEVINS pDevIns)
1121	{
1122	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
1123	PDEVPL011 pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPL011);
1124	PDEVPL011CC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPL011CC);
1125
1126	int rc = PDMDevHlpMmioSetUpContext(pDevIns, pThis->hMmio, pl011MmioWrite, pl011MmioRead, NULL /pvUser/);
1127	AssertRCReturn(rc, rc);
1128
1129	return VINF_SUCCESS;
1130	}
1131
1132	#endif /* !IN_RING3 */
1133
1134	/**
1135	* The device registration structure.
1136	*/
1137	const PDMDEVREG g_DevicePl011 =
1138	{
1139	/* .u32Version = */ PDM_DEVREG_VERSION,
1140	/* .uReserved0 = */ 0,
1141	/* .szName = */ "arm-pl011",
1142	/* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS \| PDM_DEVREG_FLAGS_RZ \| PDM_DEVREG_FLAGS_NEW_STYLE,
1143	/* .fClass = */ PDM_DEVREG_CLASS_SERIAL,
1144	/* .cMaxInstances = */ UINT32_MAX,
1145	/* .uSharedVersion = */ 42,
1146	/* .cbInstanceShared = */ sizeof(DEVPL011),
1147	/* .cbInstanceCC = */ sizeof(DEVPL011CC),
1148	/* .cbInstanceRC = */ sizeof(DEVPL011RC),
1149	/* .cMaxPciDevices = */ 0,
1150	/* .cMaxMsixVectors = */ 0,
1151	/* .pszDescription = */ "ARM PL011 PrimeCell UART",
1152	#if defined(IN_RING3)
1153	/* .pszRCMod = */ "VBoxDDRC.rc",
1154	/* .pszR0Mod = */ "VBoxDDR0.r0",
1155	/* .pfnConstruct = */ pl011R3Construct,
1156	/* .pfnDestruct = */ pl011R3Destruct,
1157	/* .pfnRelocate = */ NULL,
1158	/* .pfnMemSetup = */ NULL,
1159	/* .pfnPowerOn = */ NULL,
1160	/* .pfnReset = */ pl011R3Reset,
1161	/* .pfnSuspend = */ NULL,
1162	/* .pfnResume = */ NULL,
1163	/* .pfnAttach = */ pl011R3Attach,
1164	/* .pfnDetach = */ pl011R3Detach,
1165	/* .pfnQueryInterface = */ NULL,
1166	/* .pfnInitComplete = */ NULL,
1167	/* .pfnPowerOff = */ NULL,
1168	/* .pfnSoftReset = */ NULL,
1169	/* .pfnReserved0 = */ NULL,
1170	/* .pfnReserved1 = */ NULL,
1171	/* .pfnReserved2 = */ NULL,
1172	/* .pfnReserved3 = */ NULL,
1173	/* .pfnReserved4 = */ NULL,
1174	/* .pfnReserved5 = */ NULL,
1175	/* .pfnReserved6 = */ NULL,
1176	/* .pfnReserved7 = */ NULL,
1177	#elif defined(IN_RING0)
1178	/* .pfnEarlyConstruct = */ NULL,
1179	/* .pfnConstruct = */ pl011RZConstruct,
1180	/* .pfnDestruct = */ NULL,
1181	/* .pfnFinalDestruct = */ NULL,
1182	/* .pfnRequest = */ NULL,
1183	/* .pfnReserved0 = */ NULL,
1184	/* .pfnReserved1 = */ NULL,
1185	/* .pfnReserved2 = */ NULL,
1186	/* .pfnReserved3 = */ NULL,
1187	/* .pfnReserved4 = */ NULL,
1188	/* .pfnReserved5 = */ NULL,
1189	/* .pfnReserved6 = */ NULL,
1190	/* .pfnReserved7 = */ NULL,
1191	#elif defined(IN_RC)
1192	/* .pfnConstruct = */ pl011RZConstruct,
1193	/* .pfnReserved0 = */ NULL,
1194	/* .pfnReserved1 = */ NULL,
1195	/* .pfnReserved2 = */ NULL,
1196	/* .pfnReserved3 = */ NULL,
1197	/* .pfnReserved4 = */ NULL,
1198	/* .pfnReserved5 = */ NULL,
1199	/* .pfnReserved6 = */ NULL,
1200	/* .pfnReserved7 = */ NULL,
1201	#else
1202	# error "Not in IN_RING3, IN_RING0 or IN_RC!"
1203	#endif
1204	/* .u32VersionEnd = */ PDM_DEVREG_VERSION
1205	};
1206
1207	#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
1208

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Devices/Serial/DevPL011.cpp@ 99196

Download in other formats: