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/*
* dwc-hsotg (dwc2) USB host controller state definitions
*
* Based on hw/usb/hcd-ehci.h
*
* Copyright (c) 2020 Paul Zimmerman <pauldzim@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.
*/
#ifndef HW_USB_DWC2_H
#define HW_USB_DWC2_H
#include "qemu/timer.h"
#include "hw/irq.h"
#include "hw/sysbus.h"
#include "hw/usb.h"
#include "sysemu/dma.h"
#define DWC2_MMIO_SIZE 0x11000
#define DWC2_NB_CHAN 8 /* Number of host channels */
#define DWC2_MAX_XFER_SIZE 65536 /* Max transfer size expected in HCTSIZ */
typedef struct DWC2Packet DWC2Packet;
typedef struct DWC2State DWC2State;
typedef struct DWC2Class DWC2Class;
enum async_state {
DWC2_ASYNC_NONE = 0,
DWC2_ASYNC_INITIALIZED,
DWC2_ASYNC_INFLIGHT,
DWC2_ASYNC_FINISHED,
};
struct DWC2Packet {
USBPacket packet;
uint32_t devadr;
uint32_t epnum;
uint32_t epdir;
uint32_t mps;
uint32_t pid;
uint32_t index;
uint32_t pcnt;
uint32_t len;
int32_t async;
bool small;
bool needs_service;
};
struct DWC2State {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
USBBus bus;
qemu_irq irq;
MemoryRegion *dma_mr;
AddressSpace dma_as;
MemoryRegion container;
MemoryRegion hsotg;
MemoryRegion fifos;
union {
#define DWC2_GLBREG_SIZE 0x70
uint32_t glbreg[DWC2_GLBREG_SIZE / sizeof(uint32_t)];
struct {
uint32_t gotgctl; /* 00 */
uint32_t gotgint; /* 04 */
uint32_t gahbcfg; /* 08 */
uint32_t gusbcfg; /* 0c */
uint32_t grstctl; /* 10 */
uint32_t gintsts; /* 14 */
uint32_t gintmsk; /* 18 */
uint32_t grxstsr; /* 1c */
uint32_t grxstsp; /* 20 */
uint32_t grxfsiz; /* 24 */
uint32_t gnptxfsiz; /* 28 */
uint32_t gnptxsts; /* 2c */
uint32_t gi2cctl; /* 30 */
uint32_t gpvndctl; /* 34 */
uint32_t ggpio; /* 38 */
uint32_t guid; /* 3c */
uint32_t gsnpsid; /* 40 */
uint32_t ghwcfg1; /* 44 */
uint32_t ghwcfg2; /* 48 */
uint32_t ghwcfg3; /* 4c */
uint32_t ghwcfg4; /* 50 */
uint32_t glpmcfg; /* 54 */
uint32_t gpwrdn; /* 58 */
uint32_t gdfifocfg; /* 5c */
uint32_t gadpctl; /* 60 */
uint32_t grefclk; /* 64 */
uint32_t gintmsk2; /* 68 */
uint32_t gintsts2; /* 6c */
};
};
union {
#define DWC2_FSZREG_SIZE 0x04
uint32_t fszreg[DWC2_FSZREG_SIZE / sizeof(uint32_t)];
struct {
uint32_t hptxfsiz; /* 100 */
};
};
union {
#define DWC2_HREG0_SIZE 0x44
uint32_t hreg0[DWC2_HREG0_SIZE / sizeof(uint32_t)];
struct {
uint32_t hcfg; /* 400 */
uint32_t hfir; /* 404 */
uint32_t hfnum; /* 408 */
uint32_t rsvd0; /* 40c */
uint32_t hptxsts; /* 410 */
uint32_t haint; /* 414 */
uint32_t haintmsk; /* 418 */
uint32_t hflbaddr; /* 41c */
uint32_t rsvd1[8]; /* 420-43c */
uint32_t hprt0; /* 440 */
};
};
#define DWC2_HREG1_SIZE (0x20 * DWC2_NB_CHAN)
uint32_t hreg1[DWC2_HREG1_SIZE / sizeof(uint32_t)];
#define hcchar(_ch) hreg1[((_ch) << 3) + 0] /* 500, 520, ... */
#define hcsplt(_ch) hreg1[((_ch) << 3) + 1] /* 504, 524, ... */
#define hcint(_ch) hreg1[((_ch) << 3) + 2] /* 508, 528, ... */
#define hcintmsk(_ch) hreg1[((_ch) << 3) + 3] /* 50c, 52c, ... */
#define hctsiz(_ch) hreg1[((_ch) << 3) + 4] /* 510, 530, ... */
#define hcdma(_ch) hreg1[((_ch) << 3) + 5] /* 514, 534, ... */
#define hcdmab(_ch) hreg1[((_ch) << 3) + 7] /* 51c, 53c, ... */
union {
#define DWC2_PCGREG_SIZE 0x08
uint32_t pcgreg[DWC2_PCGREG_SIZE / sizeof(uint32_t)];
struct {
uint32_t pcgctl; /* e00 */
uint32_t pcgcctl1; /* e04 */
};
};
/* TODO - implement FIFO registers for slave mode */
#define DWC2_HFIFO_SIZE (0x1000 * DWC2_NB_CHAN)
/*
* Internal state
*/
QEMUTimer *eof_timer;
QEMUTimer *frame_timer;
QEMUBH *async_bh;
int64_t sof_time;
int64_t usb_frame_time;
int64_t usb_bit_time;
uint32_t usb_version;
uint16_t frame_number;
uint16_t fi;
uint16_t next_chan;
bool working;
USBPort uport;
DWC2Packet packet[DWC2_NB_CHAN]; /* one packet per chan */
uint8_t usb_buf[DWC2_NB_CHAN][DWC2_MAX_XFER_SIZE]; /* one buffer per chan */
};
struct DWC2Class {
/*< private >*/
SysBusDeviceClass parent_class;
ResettablePhases parent_phases;
/*< public >*/
};
#define TYPE_DWC2_USB "dwc2-usb"
#define DWC2_USB(obj) \
OBJECT_CHECK(DWC2State, (obj), TYPE_DWC2_USB)
#define DWC2_CLASS(klass) \
OBJECT_CLASS_CHECK(DWC2Class, (klass), TYPE_DWC2_USB)
#define DWC2_GET_CLASS(obj) \
OBJECT_GET_CLASS(DWC2Class, (obj), TYPE_DWC2_USB)
#endif
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