2015-10-08 15:21:02 +02:00
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/*
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* SD Association Host Standard Specification v2.0 controller emulation
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*
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* Copyright (c) 2011 Samsung Electronics Co., Ltd.
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* Mitsyanko Igor <i.mitsyanko@samsung.com>
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* Peter A.G. Crosthwaite <peter.crosthwaite@petalogix.com>
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*
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* Based on MMC controller for Samsung S5PC1xx-based board emulation
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* by Alexey Merkulov and Vladimir Monakhov.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU _General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef SDHCI_H
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#define SDHCI_H
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#include "qemu-common.h"
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#include "hw/pci/pci.h"
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#include "hw/sysbus.h"
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#include "hw/sd/sd.h"
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/* SD/MMC host controller state */
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typedef struct SDHCIState {
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2018-01-16 14:28:15 +01:00
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/*< private >*/
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2015-10-08 15:21:02 +02:00
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union {
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PCIDevice pcidev;
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SysBusDevice busdev;
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};
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2018-01-16 14:28:15 +01:00
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/*< public >*/
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2016-02-18 15:16:18 +01:00
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SDBus sdbus;
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2015-10-08 15:21:02 +02:00
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MemoryRegion iomem;
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sdhci: fix a NULL pointer dereference due to uninitialized AddresSpace object
missed in 60765b6ceeb4.
Thread 1 "qemu-system-aarch64" received signal SIGSEGV, Segmentation fault.
address_space_init (as=0x0, root=0x55555726e410, name=name@entry=0x555555e3f0a7 "sdhci-dma") at memory.c:3050
3050 as->root = root;
(gdb) bt
#0 address_space_init (as=0x0, root=0x55555726e410, name=name@entry=0x555555e3f0a7 "sdhci-dma") at memory.c:3050
#1 0x0000555555af62c3 in sdhci_sysbus_realize (dev=<optimized out>, errp=0x7fff7f931150) at hw/sd/sdhci.c:1564
#2 0x00005555558b25e5 in zynqmp_sdhci_realize (dev=0x555557051520, errp=0x7fff7f931150) at hw/sd/zynqmp-sdhci.c:151
#3 0x0000555555a2e7f3 in device_set_realized (obj=0x555557051520, value=<optimized out>, errp=0x7fff7f931270) at hw/core/qdev.c:966
#4 0x0000555555ba3f74 in property_set_bool (obj=0x555557051520, v=<optimized out>, name=<optimized out>, opaque=0x555556e04a20,
errp=0x7fff7f931270) at qom/object.c:1906
#5 0x0000555555ba51f4 in object_property_set (obj=obj@entry=0x555557051520, v=v@entry=0x5555576dbd60,
name=name@entry=0x555555dd6306 "realized", errp=errp@entry=0x7fff7f931270) at qom/object.c:1102
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180123132051.24448-1-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-01-25 12:45:30 +01:00
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AddressSpace sysbus_dma_as;
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2018-01-16 14:28:21 +01:00
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AddressSpace *dma_as;
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2018-01-16 14:28:21 +01:00
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MemoryRegion *dma_mr;
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2018-02-09 11:40:29 +01:00
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const MemoryRegionOps *io_ops;
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2015-10-08 15:21:02 +02:00
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QEMUTimer *insert_timer; /* timer for 'changing' sd card. */
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QEMUTimer *transfer_timer;
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qemu_irq irq;
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2018-01-16 14:28:15 +01:00
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/* Registers cleared on reset */
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2015-10-08 15:21:02 +02:00
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uint32_t sdmasysad; /* SDMA System Address register */
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uint16_t blksize; /* Host DMA Buff Boundary and Transfer BlkSize Reg */
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uint16_t blkcnt; /* Blocks count for current transfer */
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uint32_t argument; /* Command Argument Register */
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uint16_t trnmod; /* Transfer Mode Setting Register */
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uint16_t cmdreg; /* Command Register */
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uint32_t rspreg[4]; /* Response Registers 0-3 */
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uint32_t prnsts; /* Present State Register */
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2018-02-08 17:48:06 +01:00
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uint8_t hostctl1; /* Host Control Register */
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2015-10-08 15:21:02 +02:00
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uint8_t pwrcon; /* Power control Register */
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uint8_t blkgap; /* Block Gap Control Register */
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uint8_t wakcon; /* WakeUp Control Register */
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uint16_t clkcon; /* Clock control Register */
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uint8_t timeoutcon; /* Timeout Control Register */
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uint8_t admaerr; /* ADMA Error Status Register */
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uint16_t norintsts; /* Normal Interrupt Status Register */
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uint16_t errintsts; /* Error Interrupt Status Register */
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uint16_t norintstsen; /* Normal Interrupt Status Enable Register */
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uint16_t errintstsen; /* Error Interrupt Status Enable Register */
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uint16_t norintsigen; /* Normal Interrupt Signal Enable Register */
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uint16_t errintsigen; /* Error Interrupt Signal Enable Register */
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uint16_t acmd12errsts; /* Auto CMD12 error status register */
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uint64_t admasysaddr; /* ADMA System Address Register */
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2018-01-16 14:28:15 +01:00
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/* Read-only registers */
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2018-01-16 14:28:20 +01:00
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uint64_t capareg; /* Capabilities Register */
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uint64_t maxcurr; /* Maximum Current Capabilities Register */
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2018-02-08 17:47:55 +01:00
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uint16_t version; /* Host Controller Version Register */
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2018-01-16 14:28:15 +01:00
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2015-10-08 15:21:02 +02:00
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uint8_t *fifo_buffer; /* SD host i/o FIFO buffer */
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uint32_t buf_maxsz;
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uint16_t data_count; /* current element in FIFO buffer */
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uint8_t stopped_state;/* Current SDHC state */
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2016-02-25 22:35:30 +01:00
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bool pending_insert_state;
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2015-10-08 15:21:02 +02:00
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/* Buffer Data Port Register - virtual access point to R and W buffers */
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/* Software Reset Register - always reads as 0 */
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/* Force Event Auto CMD12 Error Interrupt Reg - write only */
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/* Force Event Error Interrupt Register- write only */
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/* RO Host Controller Version Register always reads as 0x2401 */
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2018-01-16 14:28:16 +01:00
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/* Configurable properties */
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bool pending_insert_quirk; /* Quirk for Raspberry Pi card insert int */
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2018-02-09 11:40:29 +01:00
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uint32_t quirks;
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2018-02-08 17:47:55 +01:00
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uint8_t sd_spec_version;
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2015-10-08 15:21:02 +02:00
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} SDHCIState;
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2018-02-09 11:40:29 +01:00
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/*
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* Controller does not provide transfer-complete interrupt when not
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* busy.
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*
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* NOTE: This definition is taken out of Linux kernel and so the
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* original bit number is preserved
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*/
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#define SDHCI_QUIRK_NO_BUSY_IRQ BIT(14)
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2015-10-08 15:21:02 +02:00
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#define TYPE_PCI_SDHCI "sdhci-pci"
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#define PCI_SDHCI(obj) OBJECT_CHECK(SDHCIState, (obj), TYPE_PCI_SDHCI)
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#define TYPE_SYSBUS_SDHCI "generic-sdhci"
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#define SYSBUS_SDHCI(obj) \
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OBJECT_CHECK(SDHCIState, (obj), TYPE_SYSBUS_SDHCI)
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2018-02-09 11:40:29 +01:00
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#define TYPE_IMX_USDHC "imx-usdhc"
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2015-10-08 15:21:02 +02:00
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#endif /* SDHCI_H */
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