135 lines
4.1 KiB
C
135 lines
4.1 KiB
C
/*
|
|
* Allwinner (sun4i and above) SD Host Controller emulation
|
|
*
|
|
* Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
|
|
*
|
|
* 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, either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 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 <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef HW_SD_ALLWINNER_SDHOST_H
|
|
#define HW_SD_ALLWINNER_SDHOST_H
|
|
|
|
#include "qom/object.h"
|
|
#include "hw/sysbus.h"
|
|
#include "hw/sd/sd.h"
|
|
|
|
/**
|
|
* Object model types
|
|
* @{
|
|
*/
|
|
|
|
/** Generic Allwinner SD Host Controller (abstract) */
|
|
#define TYPE_AW_SDHOST "allwinner-sdhost"
|
|
|
|
/** Allwinner sun4i family (A10, A12) */
|
|
#define TYPE_AW_SDHOST_SUN4I TYPE_AW_SDHOST "-sun4i"
|
|
|
|
/** Allwinner sun5i family and newer (A13, H2+, H3, etc) */
|
|
#define TYPE_AW_SDHOST_SUN5I TYPE_AW_SDHOST "-sun5i"
|
|
|
|
/** @} */
|
|
|
|
/**
|
|
* Object model macros
|
|
* @{
|
|
*/
|
|
|
|
#define AW_SDHOST(obj) \
|
|
OBJECT_CHECK(AwSdHostState, (obj), TYPE_AW_SDHOST)
|
|
#define AW_SDHOST_CLASS(klass) \
|
|
OBJECT_CLASS_CHECK(AwSdHostClass, (klass), TYPE_AW_SDHOST)
|
|
#define AW_SDHOST_GET_CLASS(obj) \
|
|
OBJECT_GET_CLASS(AwSdHostClass, (obj), TYPE_AW_SDHOST)
|
|
|
|
/** @} */
|
|
|
|
/**
|
|
* Allwinner SD Host Controller object instance state.
|
|
*/
|
|
typedef struct AwSdHostState {
|
|
/*< private >*/
|
|
SysBusDevice busdev;
|
|
/*< public >*/
|
|
|
|
/** Secure Digital (SD) bus, which connects to SD card (if present) */
|
|
SDBus sdbus;
|
|
|
|
/** Maps I/O registers in physical memory */
|
|
MemoryRegion iomem;
|
|
|
|
/** Interrupt output signal to notify CPU */
|
|
qemu_irq irq;
|
|
|
|
/** Number of bytes left in current DMA transfer */
|
|
uint32_t transfer_cnt;
|
|
|
|
/**
|
|
* @name Hardware Registers
|
|
* @{
|
|
*/
|
|
|
|
uint32_t global_ctl; /**< Global Control */
|
|
uint32_t clock_ctl; /**< Clock Control */
|
|
uint32_t timeout; /**< Timeout */
|
|
uint32_t bus_width; /**< Bus Width */
|
|
uint32_t block_size; /**< Block Size */
|
|
uint32_t byte_count; /**< Byte Count */
|
|
|
|
uint32_t command; /**< Command */
|
|
uint32_t command_arg; /**< Command Argument */
|
|
uint32_t response[4]; /**< Command Response */
|
|
|
|
uint32_t irq_mask; /**< Interrupt Mask */
|
|
uint32_t irq_status; /**< Raw Interrupt Status */
|
|
uint32_t status; /**< Status */
|
|
|
|
uint32_t fifo_wlevel; /**< FIFO Water Level */
|
|
uint32_t fifo_func_sel; /**< FIFO Function Select */
|
|
uint32_t debug_enable; /**< Debug Enable */
|
|
uint32_t auto12_arg; /**< Auto Command 12 Argument */
|
|
uint32_t newtiming_set; /**< SD New Timing Set */
|
|
uint32_t newtiming_debug; /**< SD New Timing Debug */
|
|
uint32_t hardware_rst; /**< Hardware Reset */
|
|
uint32_t dmac; /**< Internal DMA Controller Control */
|
|
uint32_t desc_base; /**< Descriptor List Base Address */
|
|
uint32_t dmac_status; /**< Internal DMA Controller Status */
|
|
uint32_t dmac_irq; /**< Internal DMA Controller IRQ Enable */
|
|
uint32_t card_threshold; /**< Card Threshold Control */
|
|
uint32_t startbit_detect; /**< eMMC DDR Start Bit Detection Control */
|
|
uint32_t response_crc; /**< Response CRC */
|
|
uint32_t data_crc[8]; /**< Data CRC */
|
|
uint32_t status_crc; /**< Status CRC */
|
|
|
|
/** @} */
|
|
|
|
} AwSdHostState;
|
|
|
|
/**
|
|
* Allwinner SD Host Controller class-level struct.
|
|
*
|
|
* This struct is filled by each sunxi device specific code
|
|
* such that the generic code can use this struct to support
|
|
* all devices.
|
|
*/
|
|
typedef struct AwSdHostClass {
|
|
/*< private >*/
|
|
SysBusDeviceClass parent_class;
|
|
/*< public >*/
|
|
|
|
/** Maximum buffer size in bytes per DMA descriptor */
|
|
size_t max_desc_size;
|
|
|
|
} AwSdHostClass;
|
|
|
|
#endif /* HW_SD_ALLWINNER_SDHOST_H */
|