2
* "Inventra" High-speed Dual-Role Controller (MUSB-HDRC), Mentor Graphics,
3
* USB2.0 OTG compliant core used in various chips.
5
* Copyright (C) 2008 Nokia Corporation
6
* Written by Andrzej Zaborowski <andrew@openedhand.com>
8
* This program is free software; you can redistribute it and/or
9
* modify it under the terms of the GNU General Public License as
10
* published by the Free Software Foundation; either version 2 or
11
* (at your option) version 3 of the License.
13
* This program is distributed in the hope that it will be useful,
14
* but WITHOUT ANY WARRANTY; without even the implied warranty of
15
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16
* GNU General Public License for more details.
18
* You should have received a copy of the GNU General Public License along
19
* with this program; if not, see <http://www.gnu.org/licenses/>.
21
* Only host-mode and non-DMA accesses are currently supported.
23
#include "qemu-common.h"
24
#include "qemu-timer.h"
29
/* Common USB registers */
30
#define MUSB_HDRC_FADDR 0x00 /* 8-bit */
31
#define MUSB_HDRC_POWER 0x01 /* 8-bit */
33
#define MUSB_HDRC_INTRTX 0x02 /* 16-bit */
34
#define MUSB_HDRC_INTRRX 0x04
35
#define MUSB_HDRC_INTRTXE 0x06
36
#define MUSB_HDRC_INTRRXE 0x08
37
#define MUSB_HDRC_INTRUSB 0x0a /* 8 bit */
38
#define MUSB_HDRC_INTRUSBE 0x0b /* 8 bit */
39
#define MUSB_HDRC_FRAME 0x0c /* 16-bit */
40
#define MUSB_HDRC_INDEX 0x0e /* 8 bit */
41
#define MUSB_HDRC_TESTMODE 0x0f /* 8 bit */
43
/* Per-EP registers in indexed mode */
44
#define MUSB_HDRC_EP_IDX 0x10 /* 8-bit */
47
#define MUSB_HDRC_FIFO 0x20
49
/* Additional Control Registers */
50
#define MUSB_HDRC_DEVCTL 0x60 /* 8 bit */
52
/* These are indexed */
53
#define MUSB_HDRC_TXFIFOSZ 0x62 /* 8 bit (see masks) */
54
#define MUSB_HDRC_RXFIFOSZ 0x63 /* 8 bit (see masks) */
55
#define MUSB_HDRC_TXFIFOADDR 0x64 /* 16 bit offset shifted right 3 */
56
#define MUSB_HDRC_RXFIFOADDR 0x66 /* 16 bit offset shifted right 3 */
58
/* Some more registers */
59
#define MUSB_HDRC_VCTRL 0x68 /* 8 bit */
60
#define MUSB_HDRC_HWVERS 0x6c /* 8 bit */
62
/* Added in HDRC 1.9(?) & MHDRC 1.4 */
63
/* ULPI pass-through */
64
#define MUSB_HDRC_ULPI_VBUSCTL 0x70
65
#define MUSB_HDRC_ULPI_REGDATA 0x74
66
#define MUSB_HDRC_ULPI_REGADDR 0x75
67
#define MUSB_HDRC_ULPI_REGCTL 0x76
69
/* Extended config & PHY control */
70
#define MUSB_HDRC_ENDCOUNT 0x78 /* 8 bit */
71
#define MUSB_HDRC_DMARAMCFG 0x79 /* 8 bit */
72
#define MUSB_HDRC_PHYWAIT 0x7a /* 8 bit */
73
#define MUSB_HDRC_PHYVPLEN 0x7b /* 8 bit */
74
#define MUSB_HDRC_HS_EOF1 0x7c /* 8 bit, units of 546.1 us */
75
#define MUSB_HDRC_FS_EOF1 0x7d /* 8 bit, units of 533.3 ns */
76
#define MUSB_HDRC_LS_EOF1 0x7e /* 8 bit, units of 1.067 us */
78
/* Per-EP BUSCTL registers */
79
#define MUSB_HDRC_BUSCTL 0x80
81
/* Per-EP registers in flat mode */
82
#define MUSB_HDRC_EP 0x100
84
/* offsets to registers in flat model */
85
#define MUSB_HDRC_TXMAXP 0x00 /* 16 bit apparently */
86
#define MUSB_HDRC_TXCSR 0x02 /* 16 bit apparently */
87
#define MUSB_HDRC_CSR0 MUSB_HDRC_TXCSR /* re-used for EP0 */
88
#define MUSB_HDRC_RXMAXP 0x04 /* 16 bit apparently */
89
#define MUSB_HDRC_RXCSR 0x06 /* 16 bit apparently */
90
#define MUSB_HDRC_RXCOUNT 0x08 /* 16 bit apparently */
91
#define MUSB_HDRC_COUNT0 MUSB_HDRC_RXCOUNT /* re-used for EP0 */
92
#define MUSB_HDRC_TXTYPE 0x0a /* 8 bit apparently */
93
#define MUSB_HDRC_TYPE0 MUSB_HDRC_TXTYPE /* re-used for EP0 */
94
#define MUSB_HDRC_TXINTERVAL 0x0b /* 8 bit apparently */
95
#define MUSB_HDRC_NAKLIMIT0 MUSB_HDRC_TXINTERVAL /* re-used for EP0 */
96
#define MUSB_HDRC_RXTYPE 0x0c /* 8 bit apparently */
97
#define MUSB_HDRC_RXINTERVAL 0x0d /* 8 bit apparently */
98
#define MUSB_HDRC_FIFOSIZE 0x0f /* 8 bit apparently */
99
#define MUSB_HDRC_CONFIGDATA MGC_O_HDRC_FIFOSIZE /* re-used for EP0 */
101
/* "Bus control" registers */
102
#define MUSB_HDRC_TXFUNCADDR 0x00
103
#define MUSB_HDRC_TXHUBADDR 0x02
104
#define MUSB_HDRC_TXHUBPORT 0x03
106
#define MUSB_HDRC_RXFUNCADDR 0x04
107
#define MUSB_HDRC_RXHUBADDR 0x06
108
#define MUSB_HDRC_RXHUBPORT 0x07
111
* MUSBHDRC Register bit masks
115
#define MGC_M_POWER_ISOUPDATE 0x80
116
#define MGC_M_POWER_SOFTCONN 0x40
117
#define MGC_M_POWER_HSENAB 0x20
118
#define MGC_M_POWER_HSMODE 0x10
119
#define MGC_M_POWER_RESET 0x08
120
#define MGC_M_POWER_RESUME 0x04
121
#define MGC_M_POWER_SUSPENDM 0x02
122
#define MGC_M_POWER_ENSUSPEND 0x01
125
#define MGC_M_INTR_SUSPEND 0x01
126
#define MGC_M_INTR_RESUME 0x02
127
#define MGC_M_INTR_RESET 0x04
128
#define MGC_M_INTR_BABBLE 0x04
129
#define MGC_M_INTR_SOF 0x08
130
#define MGC_M_INTR_CONNECT 0x10
131
#define MGC_M_INTR_DISCONNECT 0x20
132
#define MGC_M_INTR_SESSREQ 0x40
133
#define MGC_M_INTR_VBUSERROR 0x80 /* FOR SESSION END */
134
#define MGC_M_INTR_EP0 0x01 /* FOR EP0 INTERRUPT */
137
#define MGC_M_DEVCTL_BDEVICE 0x80
138
#define MGC_M_DEVCTL_FSDEV 0x40
139
#define MGC_M_DEVCTL_LSDEV 0x20
140
#define MGC_M_DEVCTL_VBUS 0x18
141
#define MGC_S_DEVCTL_VBUS 3
142
#define MGC_M_DEVCTL_HM 0x04
143
#define MGC_M_DEVCTL_HR 0x02
144
#define MGC_M_DEVCTL_SESSION 0x01
147
#define MGC_M_TEST_FORCE_HOST 0x80
148
#define MGC_M_TEST_FIFO_ACCESS 0x40
149
#define MGC_M_TEST_FORCE_FS 0x20
150
#define MGC_M_TEST_FORCE_HS 0x10
151
#define MGC_M_TEST_PACKET 0x08
152
#define MGC_M_TEST_K 0x04
153
#define MGC_M_TEST_J 0x02
154
#define MGC_M_TEST_SE0_NAK 0x01
157
#define MGC_M_CSR0_FLUSHFIFO 0x0100
158
#define MGC_M_CSR0_TXPKTRDY 0x0002
159
#define MGC_M_CSR0_RXPKTRDY 0x0001
161
/* CSR0 in Peripheral mode */
162
#define MGC_M_CSR0_P_SVDSETUPEND 0x0080
163
#define MGC_M_CSR0_P_SVDRXPKTRDY 0x0040
164
#define MGC_M_CSR0_P_SENDSTALL 0x0020
165
#define MGC_M_CSR0_P_SETUPEND 0x0010
166
#define MGC_M_CSR0_P_DATAEND 0x0008
167
#define MGC_M_CSR0_P_SENTSTALL 0x0004
169
/* CSR0 in Host mode */
170
#define MGC_M_CSR0_H_NO_PING 0x0800
171
#define MGC_M_CSR0_H_WR_DATATOGGLE 0x0400 /* set to allow setting: */
172
#define MGC_M_CSR0_H_DATATOGGLE 0x0200 /* data toggle control */
173
#define MGC_M_CSR0_H_NAKTIMEOUT 0x0080
174
#define MGC_M_CSR0_H_STATUSPKT 0x0040
175
#define MGC_M_CSR0_H_REQPKT 0x0020
176
#define MGC_M_CSR0_H_ERROR 0x0010
177
#define MGC_M_CSR0_H_SETUPPKT 0x0008
178
#define MGC_M_CSR0_H_RXSTALL 0x0004
181
#define MGC_M_CONFIGDATA_MPRXE 0x80 /* auto bulk pkt combining */
182
#define MGC_M_CONFIGDATA_MPTXE 0x40 /* auto bulk pkt splitting */
183
#define MGC_M_CONFIGDATA_BIGENDIAN 0x20
184
#define MGC_M_CONFIGDATA_HBRXE 0x10 /* HB-ISO for RX */
185
#define MGC_M_CONFIGDATA_HBTXE 0x08 /* HB-ISO for TX */
186
#define MGC_M_CONFIGDATA_DYNFIFO 0x04 /* dynamic FIFO sizing */
187
#define MGC_M_CONFIGDATA_SOFTCONE 0x02 /* SoftConnect */
188
#define MGC_M_CONFIGDATA_UTMIDW 0x01 /* Width, 0 => 8b, 1 => 16b */
190
/* TXCSR in Peripheral and Host mode */
191
#define MGC_M_TXCSR_AUTOSET 0x8000
192
#define MGC_M_TXCSR_ISO 0x4000
193
#define MGC_M_TXCSR_MODE 0x2000
194
#define MGC_M_TXCSR_DMAENAB 0x1000
195
#define MGC_M_TXCSR_FRCDATATOG 0x0800
196
#define MGC_M_TXCSR_DMAMODE 0x0400
197
#define MGC_M_TXCSR_CLRDATATOG 0x0040
198
#define MGC_M_TXCSR_FLUSHFIFO 0x0008
199
#define MGC_M_TXCSR_FIFONOTEMPTY 0x0002
200
#define MGC_M_TXCSR_TXPKTRDY 0x0001
202
/* TXCSR in Peripheral mode */
203
#define MGC_M_TXCSR_P_INCOMPTX 0x0080
204
#define MGC_M_TXCSR_P_SENTSTALL 0x0020
205
#define MGC_M_TXCSR_P_SENDSTALL 0x0010
206
#define MGC_M_TXCSR_P_UNDERRUN 0x0004
208
/* TXCSR in Host mode */
209
#define MGC_M_TXCSR_H_WR_DATATOGGLE 0x0200
210
#define MGC_M_TXCSR_H_DATATOGGLE 0x0100
211
#define MGC_M_TXCSR_H_NAKTIMEOUT 0x0080
212
#define MGC_M_TXCSR_H_RXSTALL 0x0020
213
#define MGC_M_TXCSR_H_ERROR 0x0004
215
/* RXCSR in Peripheral and Host mode */
216
#define MGC_M_RXCSR_AUTOCLEAR 0x8000
217
#define MGC_M_RXCSR_DMAENAB 0x2000
218
#define MGC_M_RXCSR_DISNYET 0x1000
219
#define MGC_M_RXCSR_DMAMODE 0x0800
220
#define MGC_M_RXCSR_INCOMPRX 0x0100
221
#define MGC_M_RXCSR_CLRDATATOG 0x0080
222
#define MGC_M_RXCSR_FLUSHFIFO 0x0010
223
#define MGC_M_RXCSR_DATAERROR 0x0008
224
#define MGC_M_RXCSR_FIFOFULL 0x0002
225
#define MGC_M_RXCSR_RXPKTRDY 0x0001
227
/* RXCSR in Peripheral mode */
228
#define MGC_M_RXCSR_P_ISO 0x4000
229
#define MGC_M_RXCSR_P_SENTSTALL 0x0040
230
#define MGC_M_RXCSR_P_SENDSTALL 0x0020
231
#define MGC_M_RXCSR_P_OVERRUN 0x0004
233
/* RXCSR in Host mode */
234
#define MGC_M_RXCSR_H_AUTOREQ 0x4000
235
#define MGC_M_RXCSR_H_WR_DATATOGGLE 0x0400
236
#define MGC_M_RXCSR_H_DATATOGGLE 0x0200
237
#define MGC_M_RXCSR_H_RXSTALL 0x0040
238
#define MGC_M_RXCSR_H_REQPKT 0x0020
239
#define MGC_M_RXCSR_H_ERROR 0x0004
242
#define MGC_M_HUBADDR_MULTI_TT 0x80
244
/* ULPI: Added in HDRC 1.9(?) & MHDRC 1.4 */
245
#define MGC_M_ULPI_VBCTL_USEEXTVBUSIND 0x02
246
#define MGC_M_ULPI_VBCTL_USEEXTVBUS 0x01
247
#define MGC_M_ULPI_REGCTL_INT_ENABLE 0x08
248
#define MGC_M_ULPI_REGCTL_READNOTWRITE 0x04
249
#define MGC_M_ULPI_REGCTL_COMPLETE 0x02
250
#define MGC_M_ULPI_REGCTL_REG 0x01
252
/* #define MUSB_DEBUG */
255
#define TRACE(fmt,...) fprintf(stderr, "%s@%d: " fmt "\n", __FUNCTION__, \
256
__LINE__, ##__VA_ARGS__)
262
static void musb_attach(USBPort *port);
263
static void musb_detach(USBPort *port);
264
static void musb_child_detach(USBPort *port, USBDevice *child);
265
static void musb_schedule_cb(USBPort *port, USBPacket *p);
266
static void musb_async_cancel_device(MUSBState *s, USBDevice *dev);
268
static USBPortOps musb_port_ops = {
269
.attach = musb_attach,
270
.detach = musb_detach,
271
.child_detach = musb_child_detach,
272
.complete = musb_schedule_cb,
275
static USBBusOps musb_bus_ops = {
278
typedef struct MUSBPacket MUSBPacket;
279
typedef struct MUSBEndPoint MUSBEndPoint;
287
struct MUSBEndPoint {
298
int timeout[2]; /* Always in microframes */
304
MUSBPacket packey[2];
308
/* For callbacks' use */
312
USBCallback *delayed_cb[2];
313
QEMUTimer *intv_timer[2];
338
/* Duplicating the world since 2008!... probably we should have 32
339
* logical, single endpoints instead. */
343
struct MUSBState *musb_init(qemu_irq *irqs)
345
MUSBState *s = qemu_mallocz(sizeof(*s));
351
s->power = MGC_M_POWER_HSENAB;
361
s->ep[0].config = MGC_M_CONFIGDATA_SOFTCONE | MGC_M_CONFIGDATA_DYNFIFO;
362
for (i = 0; i < 16; i ++) {
363
s->ep[i].fifosize = 64;
364
s->ep[i].maxp[0] = 0x40;
365
s->ep[i].maxp[1] = 0x40;
370
usb_bus_new(&s->bus, &musb_bus_ops, NULL /* FIXME */);
371
usb_register_port(&s->bus, &s->port, s, 0, &musb_port_ops,
372
USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL);
377
static void musb_vbus_set(MUSBState *s, int level)
380
s->devctl |= 3 << MGC_S_DEVCTL_VBUS;
382
s->devctl &= ~MGC_M_DEVCTL_VBUS;
384
qemu_set_irq(s->irqs[musb_set_vbus], level);
387
static void musb_intr_set(MUSBState *s, int line, int level)
390
s->intr &= ~(1 << line);
391
qemu_irq_lower(s->irqs[line]);
392
} else if (s->mask & (1 << line)) {
393
s->intr |= 1 << line;
394
qemu_irq_raise(s->irqs[line]);
398
static void musb_tx_intr_set(MUSBState *s, int line, int level)
401
s->tx_intr &= ~(1 << line);
403
qemu_irq_lower(s->irqs[musb_irq_tx]);
404
} else if (s->tx_mask & (1 << line)) {
405
s->tx_intr |= 1 << line;
406
qemu_irq_raise(s->irqs[musb_irq_tx]);
410
static void musb_rx_intr_set(MUSBState *s, int line, int level)
414
s->rx_intr &= ~(1 << line);
416
qemu_irq_lower(s->irqs[musb_irq_rx]);
417
} else if (s->rx_mask & (1 << line)) {
418
s->rx_intr |= 1 << line;
419
qemu_irq_raise(s->irqs[musb_irq_rx]);
422
musb_tx_intr_set(s, line, level);
425
uint32_t musb_core_intr_get(MUSBState *s)
427
return (s->rx_intr << 15) | s->tx_intr;
430
void musb_core_intr_clear(MUSBState *s, uint32_t mask)
433
s->rx_intr &= mask >> 15;
435
qemu_irq_lower(s->irqs[musb_irq_rx]);
439
s->tx_intr &= mask & 0xffff;
441
qemu_irq_lower(s->irqs[musb_irq_tx]);
445
void musb_set_size(MUSBState *s, int epnum, int size, int is_tx)
447
s->ep[epnum].ext_size[!is_tx] = size;
448
s->ep[epnum].fifostart[0] = 0;
449
s->ep[epnum].fifostart[1] = 0;
450
s->ep[epnum].fifolen[0] = 0;
451
s->ep[epnum].fifolen[1] = 0;
454
static void musb_session_update(MUSBState *s, int prev_dev, int prev_sess)
456
int detect_prev = prev_dev && prev_sess;
457
int detect = !!s->port.dev && s->session;
459
if (detect && !detect_prev) {
460
/* Let's skip the ID pin sense and VBUS sense formalities and
461
* and signal a successful SRP directly. This should work at least
462
* for the Linux driver stack. */
463
musb_intr_set(s, musb_irq_connect, 1);
465
if (s->port.dev->speed == USB_SPEED_LOW) {
466
s->devctl &= ~MGC_M_DEVCTL_FSDEV;
467
s->devctl |= MGC_M_DEVCTL_LSDEV;
469
s->devctl |= MGC_M_DEVCTL_FSDEV;
470
s->devctl &= ~MGC_M_DEVCTL_LSDEV;
474
s->devctl &= ~MGC_M_DEVCTL_BDEVICE;
477
s->devctl |= MGC_M_DEVCTL_HM;
481
} else if (!detect && detect_prev) {
488
/* Attach or detach a device on our only port. */
489
static void musb_attach(USBPort *port)
491
MUSBState *s = (MUSBState *) port->opaque;
493
musb_intr_set(s, musb_irq_vbus_request, 1);
494
musb_session_update(s, 0, s->session);
497
static void musb_detach(USBPort *port)
499
MUSBState *s = (MUSBState *) port->opaque;
501
musb_async_cancel_device(s, port->dev);
503
musb_intr_set(s, musb_irq_disconnect, 1);
504
musb_session_update(s, 1, s->session);
507
static void musb_child_detach(USBPort *port, USBDevice *child)
509
MUSBState *s = (MUSBState *) port->opaque;
511
musb_async_cancel_device(s, child);
514
static void musb_cb_tick0(void *opaque)
516
MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
518
ep->delayed_cb[0](&ep->packey[0].p, opaque);
521
static void musb_cb_tick1(void *opaque)
523
MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
525
ep->delayed_cb[1](&ep->packey[1].p, opaque);
528
#define musb_cb_tick (dir ? musb_cb_tick1 : musb_cb_tick0)
530
static void musb_schedule_cb(USBPort *port, USBPacket *packey)
532
MUSBPacket *p = container_of(packey, MUSBPacket, p);
533
MUSBEndPoint *ep = p->ep;
537
if (ep->status[dir] == USB_RET_NAK)
538
timeout = ep->timeout[dir];
539
else if (ep->interrupt[dir])
542
return musb_cb_tick(ep);
544
if (!ep->intv_timer[dir])
545
ep->intv_timer[dir] = qemu_new_timer_ns(vm_clock, musb_cb_tick, ep);
547
qemu_mod_timer(ep->intv_timer[dir], qemu_get_clock_ns(vm_clock) +
548
muldiv64(timeout, get_ticks_per_sec(), 8000));
551
static int musb_timeout(int ttype, int speed, int val)
558
case USB_ENDPOINT_XFER_CONTROL:
561
else if (speed == USB_SPEED_HIGH)
562
return 1 << (val - 1);
564
return 8 << (val - 1);
566
case USB_ENDPOINT_XFER_INT:
567
if (speed == USB_SPEED_HIGH)
571
return 1 << (val - 1);
575
case USB_ENDPOINT_XFER_BULK:
576
case USB_ENDPOINT_XFER_ISOC:
579
else if (speed == USB_SPEED_HIGH)
580
return 1 << (val - 1);
582
return 8 << (val - 1);
583
/* TODO: what with low-speed Bulk and Isochronous? */
586
hw_error("bad interval\n");
589
static void musb_packet(MUSBState *s, MUSBEndPoint *ep,
590
int epnum, int pid, int len, USBCallback cb, int dir)
593
int idx = epnum && dir;
596
/* ep->type[0,1] contains:
597
* in bits 7:6 the speed (0 - invalid, 1 - high, 2 - full, 3 - slow)
598
* in bits 5:4 the transfer type (BULK / INT)
599
* in bits 3:0 the EP num
601
ttype = epnum ? (ep->type[idx] >> 4) & 3 : 0;
603
ep->timeout[dir] = musb_timeout(ttype,
604
ep->type[idx] >> 6, ep->interval[idx]);
605
ep->interrupt[dir] = ttype == USB_ENDPOINT_XFER_INT;
606
ep->delayed_cb[dir] = cb;
608
ep->packey[dir].p.pid = pid;
609
/* A wild guess on the FADDR semantics... */
610
ep->packey[dir].p.devaddr = ep->faddr[idx];
611
ep->packey[dir].p.devep = ep->type[idx] & 0xf;
612
ep->packey[dir].p.data = (void *) ep->buf[idx];
613
ep->packey[dir].p.len = len;
614
ep->packey[dir].ep = ep;
615
ep->packey[dir].dir = dir;
618
ret = usb_handle_packet(s->port.dev, &ep->packey[dir].p);
622
if (ret == USB_RET_ASYNC) {
623
ep->status[dir] = len;
627
ep->status[dir] = ret;
628
musb_schedule_cb(&s->port, &ep->packey[dir].p);
631
static void musb_tx_packet_complete(USBPacket *packey, void *opaque)
633
/* Unfortunately we can't use packey->devep because that's the remote
634
* endpoint number and may be different than our local. */
635
MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
636
int epnum = ep->epnum;
637
MUSBState *s = ep->musb;
639
ep->fifostart[0] = 0;
642
if (ep->status[0] != USB_RET_NAK) {
645
ep->csr[0] &= ~(MGC_M_TXCSR_FIFONOTEMPTY | MGC_M_TXCSR_TXPKTRDY);
647
ep->csr[0] &= ~MGC_M_CSR0_TXPKTRDY;
652
/* Clear all of the error bits first */
654
ep->csr[0] &= ~(MGC_M_TXCSR_H_ERROR | MGC_M_TXCSR_H_RXSTALL |
655
MGC_M_TXCSR_H_NAKTIMEOUT);
657
ep->csr[0] &= ~(MGC_M_CSR0_H_ERROR | MGC_M_CSR0_H_RXSTALL |
658
MGC_M_CSR0_H_NAKTIMEOUT | MGC_M_CSR0_H_NO_PING);
660
if (ep->status[0] == USB_RET_STALL) {
661
/* Command not supported by target! */
665
ep->csr[0] |= MGC_M_TXCSR_H_RXSTALL;
667
ep->csr[0] |= MGC_M_CSR0_H_RXSTALL;
670
if (ep->status[0] == USB_RET_NAK) {
673
/* NAK timeouts are only generated in Bulk transfers and
674
* Data-errors in Isochronous. */
675
if (ep->interrupt[0]) {
680
ep->csr[0] |= MGC_M_TXCSR_H_NAKTIMEOUT;
682
ep->csr[0] |= MGC_M_CSR0_H_NAKTIMEOUT;
685
if (ep->status[0] < 0) {
686
if (ep->status[0] == USB_RET_BABBLE)
687
musb_intr_set(s, musb_irq_rst_babble, 1);
689
/* Pretend we've tried three times already and failed (in
690
* case of USB_TOKEN_SETUP). */
692
ep->csr[0] |= MGC_M_TXCSR_H_ERROR;
694
ep->csr[0] |= MGC_M_CSR0_H_ERROR;
696
musb_tx_intr_set(s, epnum, 1);
699
/* TODO: check len for over/underruns of an OUT packet? */
702
if (!epnum && ep->packey[0].pid == USB_TOKEN_SETUP)
703
s->setup_len = ep->packey[0].data[6];
706
/* In DMA mode: if no error, assert DMA request for this EP,
707
* and skip the interrupt. */
708
musb_tx_intr_set(s, epnum, 1);
711
static void musb_rx_packet_complete(USBPacket *packey, void *opaque)
713
/* Unfortunately we can't use packey->devep because that's the remote
714
* endpoint number and may be different than our local. */
715
MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
716
int epnum = ep->epnum;
717
MUSBState *s = ep->musb;
719
ep->fifostart[1] = 0;
723
if (ep->status[1] != USB_RET_NAK) {
725
ep->csr[1] &= ~MGC_M_RXCSR_H_REQPKT;
727
ep->csr[0] &= ~MGC_M_CSR0_H_REQPKT;
732
/* Clear all of the imaginable error bits first */
733
ep->csr[1] &= ~(MGC_M_RXCSR_H_ERROR | MGC_M_RXCSR_H_RXSTALL |
734
MGC_M_RXCSR_DATAERROR);
736
ep->csr[0] &= ~(MGC_M_CSR0_H_ERROR | MGC_M_CSR0_H_RXSTALL |
737
MGC_M_CSR0_H_NAKTIMEOUT | MGC_M_CSR0_H_NO_PING);
739
if (ep->status[1] == USB_RET_STALL) {
743
ep->csr[1] |= MGC_M_RXCSR_H_RXSTALL;
745
ep->csr[0] |= MGC_M_CSR0_H_RXSTALL;
748
if (ep->status[1] == USB_RET_NAK) {
751
/* NAK timeouts are only generated in Bulk transfers and
752
* Data-errors in Isochronous. */
753
if (ep->interrupt[1])
754
return musb_packet(s, ep, epnum, USB_TOKEN_IN,
755
packey->len, musb_rx_packet_complete, 1);
757
ep->csr[1] |= MGC_M_RXCSR_DATAERROR;
759
ep->csr[0] |= MGC_M_CSR0_H_NAKTIMEOUT;
762
if (ep->status[1] < 0) {
763
if (ep->status[1] == USB_RET_BABBLE) {
764
musb_intr_set(s, musb_irq_rst_babble, 1);
768
/* Pretend we've tried three times already and failed (in
769
* case of a control transfer). */
770
ep->csr[1] |= MGC_M_RXCSR_H_ERROR;
772
ep->csr[0] |= MGC_M_CSR0_H_ERROR;
774
musb_rx_intr_set(s, epnum, 1);
777
/* TODO: check len for over/underruns of an OUT packet? */
778
/* TODO: perhaps make use of e->ext_size[1] here. */
780
packey->len = ep->status[1];
782
if (!(ep->csr[1] & (MGC_M_RXCSR_H_RXSTALL | MGC_M_RXCSR_DATAERROR))) {
783
ep->csr[1] |= MGC_M_RXCSR_FIFOFULL | MGC_M_RXCSR_RXPKTRDY;
785
ep->csr[0] |= MGC_M_CSR0_RXPKTRDY;
787
ep->rxcount = packey->len; /* XXX: MIN(packey->len, ep->maxp[1]); */
788
/* In DMA mode: assert DMA request for this EP */
791
/* Only if DMA has not been asserted */
792
musb_rx_intr_set(s, epnum, 1);
795
static void musb_async_cancel_device(MUSBState *s, USBDevice *dev)
799
for (ep = 0; ep < 16; ep++) {
800
for (dir = 0; dir < 2; dir++) {
801
if (s->ep[ep].packey[dir].p.owner != dev) {
804
usb_cancel_packet(&s->ep[ep].packey[dir].p);
805
/* status updates needed here? */
810
static void musb_tx_rdy(MUSBState *s, int epnum)
812
MUSBEndPoint *ep = s->ep + epnum;
814
int total, valid = 0;
815
TRACE("start %d, len %d", ep->fifostart[0], ep->fifolen[0] );
816
ep->fifostart[0] += ep->fifolen[0];
819
/* XXX: how's the total size of the packet retrieved exactly in
820
* the generic case? */
821
total = ep->maxp[0] & 0x3ff;
823
if (ep->ext_size[0]) {
824
total = ep->ext_size[0];
829
/* If the packet is not fully ready yet, wait for a next segment. */
830
if (epnum && (ep->fifostart[0]) < total)
834
total = ep->fifostart[0];
837
if (!epnum && (ep->csr[0] & MGC_M_CSR0_H_SETUPPKT)) {
838
pid = USB_TOKEN_SETUP;
840
TRACE("illegal SETUPPKT length of %i bytes", total);
842
/* Controller should retry SETUP packets three times on errors
843
* but it doesn't make sense for us to do that. */
846
return musb_packet(s, ep, epnum, pid,
847
total, musb_tx_packet_complete, 0);
850
static void musb_rx_req(MUSBState *s, int epnum)
852
MUSBEndPoint *ep = s->ep + epnum;
855
/* If we already have a packet, which didn't fit into the
856
* 64 bytes of the FIFO, only move the FIFO start and return. (Obsolete) */
857
if (ep->packey[1].p.pid == USB_TOKEN_IN && ep->status[1] >= 0 &&
858
(ep->fifostart[1]) + ep->rxcount <
859
ep->packey[1].p.len) {
860
TRACE("0x%08x, %d", ep->fifostart[1], ep->rxcount );
861
ep->fifostart[1] += ep->rxcount;
864
ep->rxcount = MIN(ep->packey[0].p.len - (ep->fifostart[1]),
867
ep->csr[1] &= ~MGC_M_RXCSR_H_REQPKT;
869
ep->csr[0] &= ~MGC_M_CSR0_H_REQPKT;
871
/* Clear all of the error bits first */
872
ep->csr[1] &= ~(MGC_M_RXCSR_H_ERROR | MGC_M_RXCSR_H_RXSTALL |
873
MGC_M_RXCSR_DATAERROR);
875
ep->csr[0] &= ~(MGC_M_CSR0_H_ERROR | MGC_M_CSR0_H_RXSTALL |
876
MGC_M_CSR0_H_NAKTIMEOUT | MGC_M_CSR0_H_NO_PING);
878
ep->csr[1] |= MGC_M_RXCSR_FIFOFULL | MGC_M_RXCSR_RXPKTRDY;
880
ep->csr[0] |= MGC_M_CSR0_RXPKTRDY;
881
musb_rx_intr_set(s, epnum, 1);
885
/* The driver sets maxp[1] to 64 or less because it knows the hardware
886
* FIFO is this deep. Bigger packets get split in
887
* usb_generic_handle_packet but we can also do the splitting locally
888
* for performance. It turns out we can also have a bigger FIFO and
889
* ignore the limit set in ep->maxp[1]. The Linux MUSB driver deals
890
* OK with single packets of even 32KB and we avoid splitting, however
891
* usb_msd.c sometimes sends a packet bigger than what Linux expects
892
* (e.g. 8192 bytes instead of 4096) and we get an OVERRUN. Splitting
893
* hides this overrun from Linux. Up to 4096 everything is fine
894
* though. Currently this is disabled.
896
* XXX: mind ep->fifosize. */
897
total = MIN(ep->maxp[1] & 0x3ff, sizeof(s->buf));
900
/* Why should *we* do that instead of Linux? */
902
if (ep->packey[0].p.devaddr == 2) {
903
total = MIN(s->setup_len, 8);
905
total = MIN(s->setup_len, 64);
907
s->setup_len -= total;
911
return musb_packet(s, ep, epnum, USB_TOKEN_IN,
912
total, musb_rx_packet_complete, 1);
915
static uint8_t musb_read_fifo(MUSBEndPoint *ep)
918
if (ep->fifolen[1] >= 64) {
919
/* We have a FIFO underrun */
920
TRACE("EP%d FIFO is now empty, stop reading", ep->epnum);
923
/* In DMA mode clear RXPKTRDY and set REQPKT automatically
924
* (if AUTOREQ is set) */
926
ep->csr[1] &= ~MGC_M_RXCSR_FIFOFULL;
927
value=ep->buf[1][ep->fifostart[1] + ep->fifolen[1] ++];
928
TRACE("EP%d 0x%02x, %d", ep->epnum, value, ep->fifolen[1] );
932
static void musb_write_fifo(MUSBEndPoint *ep, uint8_t value)
934
TRACE("EP%d = %02x", ep->epnum, value);
935
if (ep->fifolen[0] >= 64) {
936
/* We have a FIFO overrun */
937
TRACE("EP%d FIFO exceeded 64 bytes, stop feeding data", ep->epnum);
941
ep->buf[0][ep->fifostart[0] + ep->fifolen[0] ++] = value;
942
ep->csr[0] |= MGC_M_TXCSR_FIFONOTEMPTY;
945
static void musb_ep_frame_cancel(MUSBEndPoint *ep, int dir)
947
if (ep->intv_timer[dir])
948
qemu_del_timer(ep->intv_timer[dir]);
952
static uint8_t musb_busctl_readb(void *opaque, int ep, int addr)
954
MUSBState *s = (MUSBState *) opaque;
957
/* For USB2.0 HS hubs only */
958
case MUSB_HDRC_TXHUBADDR:
959
return s->ep[ep].haddr[0];
960
case MUSB_HDRC_TXHUBPORT:
961
return s->ep[ep].hport[0];
962
case MUSB_HDRC_RXHUBADDR:
963
return s->ep[ep].haddr[1];
964
case MUSB_HDRC_RXHUBPORT:
965
return s->ep[ep].hport[1];
968
TRACE("unknown register 0x%02x", addr);
973
static void musb_busctl_writeb(void *opaque, int ep, int addr, uint8_t value)
975
MUSBState *s = (MUSBState *) opaque;
978
case MUSB_HDRC_TXFUNCADDR:
979
s->ep[ep].faddr[0] = value;
981
case MUSB_HDRC_RXFUNCADDR:
982
s->ep[ep].faddr[1] = value;
984
case MUSB_HDRC_TXHUBADDR:
985
s->ep[ep].haddr[0] = value;
987
case MUSB_HDRC_TXHUBPORT:
988
s->ep[ep].hport[0] = value;
990
case MUSB_HDRC_RXHUBADDR:
991
s->ep[ep].haddr[1] = value;
993
case MUSB_HDRC_RXHUBPORT:
994
s->ep[ep].hport[1] = value;
998
TRACE("unknown register 0x%02x", addr);
1003
static uint16_t musb_busctl_readh(void *opaque, int ep, int addr)
1005
MUSBState *s = (MUSBState *) opaque;
1008
case MUSB_HDRC_TXFUNCADDR:
1009
return s->ep[ep].faddr[0];
1010
case MUSB_HDRC_RXFUNCADDR:
1011
return s->ep[ep].faddr[1];
1014
return musb_busctl_readb(s, ep, addr) |
1015
(musb_busctl_readb(s, ep, addr | 1) << 8);
1019
static void musb_busctl_writeh(void *opaque, int ep, int addr, uint16_t value)
1021
MUSBState *s = (MUSBState *) opaque;
1024
case MUSB_HDRC_TXFUNCADDR:
1025
s->ep[ep].faddr[0] = value;
1027
case MUSB_HDRC_RXFUNCADDR:
1028
s->ep[ep].faddr[1] = value;
1032
musb_busctl_writeb(s, ep, addr, value & 0xff);
1033
musb_busctl_writeb(s, ep, addr | 1, value >> 8);
1037
/* Endpoint control */
1038
static uint8_t musb_ep_readb(void *opaque, int ep, int addr)
1040
MUSBState *s = (MUSBState *) opaque;
1043
case MUSB_HDRC_TXTYPE:
1044
return s->ep[ep].type[0];
1045
case MUSB_HDRC_TXINTERVAL:
1046
return s->ep[ep].interval[0];
1047
case MUSB_HDRC_RXTYPE:
1048
return s->ep[ep].type[1];
1049
case MUSB_HDRC_RXINTERVAL:
1050
return s->ep[ep].interval[1];
1051
case (MUSB_HDRC_FIFOSIZE & ~1):
1053
case MUSB_HDRC_FIFOSIZE:
1054
return ep ? s->ep[ep].fifosize : s->ep[ep].config;
1055
case MUSB_HDRC_RXCOUNT:
1056
return s->ep[ep].rxcount;
1059
TRACE("unknown register 0x%02x", addr);
1064
static void musb_ep_writeb(void *opaque, int ep, int addr, uint8_t value)
1066
MUSBState *s = (MUSBState *) opaque;
1069
case MUSB_HDRC_TXTYPE:
1070
s->ep[ep].type[0] = value;
1072
case MUSB_HDRC_TXINTERVAL:
1073
s->ep[ep].interval[0] = value;
1074
musb_ep_frame_cancel(&s->ep[ep], 0);
1076
case MUSB_HDRC_RXTYPE:
1077
s->ep[ep].type[1] = value;
1079
case MUSB_HDRC_RXINTERVAL:
1080
s->ep[ep].interval[1] = value;
1081
musb_ep_frame_cancel(&s->ep[ep], 1);
1083
case (MUSB_HDRC_FIFOSIZE & ~1):
1085
case MUSB_HDRC_FIFOSIZE:
1086
TRACE("somebody messes with fifosize (now %i bytes)", value);
1087
s->ep[ep].fifosize = value;
1090
TRACE("unknown register 0x%02x", addr);
1095
static uint16_t musb_ep_readh(void *opaque, int ep, int addr)
1097
MUSBState *s = (MUSBState *) opaque;
1101
case MUSB_HDRC_TXMAXP:
1102
return s->ep[ep].maxp[0];
1103
case MUSB_HDRC_TXCSR:
1104
return s->ep[ep].csr[0];
1105
case MUSB_HDRC_RXMAXP:
1106
return s->ep[ep].maxp[1];
1107
case MUSB_HDRC_RXCSR:
1108
ret = s->ep[ep].csr[1];
1110
/* TODO: This and other bits probably depend on
1111
* ep->csr[1] & MGC_M_RXCSR_AUTOCLEAR. */
1112
if (s->ep[ep].csr[1] & MGC_M_RXCSR_AUTOCLEAR)
1113
s->ep[ep].csr[1] &= ~MGC_M_RXCSR_RXPKTRDY;
1116
case MUSB_HDRC_RXCOUNT:
1117
return s->ep[ep].rxcount;
1120
return musb_ep_readb(s, ep, addr) |
1121
(musb_ep_readb(s, ep, addr | 1) << 8);
1125
static void musb_ep_writeh(void *opaque, int ep, int addr, uint16_t value)
1127
MUSBState *s = (MUSBState *) opaque;
1130
case MUSB_HDRC_TXMAXP:
1131
s->ep[ep].maxp[0] = value;
1133
case MUSB_HDRC_TXCSR:
1135
s->ep[ep].csr[0] &= value & 0xa6;
1136
s->ep[ep].csr[0] |= value & 0xff59;
1138
s->ep[ep].csr[0] &= value & 0x85;
1139
s->ep[ep].csr[0] |= value & 0xf7a;
1142
musb_ep_frame_cancel(&s->ep[ep], 0);
1144
if ((ep && (value & MGC_M_TXCSR_FLUSHFIFO)) ||
1145
(!ep && (value & MGC_M_CSR0_FLUSHFIFO))) {
1146
s->ep[ep].fifolen[0] = 0;
1147
s->ep[ep].fifostart[0] = 0;
1150
~(MGC_M_TXCSR_FIFONOTEMPTY | MGC_M_TXCSR_TXPKTRDY);
1153
~(MGC_M_CSR0_TXPKTRDY | MGC_M_CSR0_RXPKTRDY);
1158
(value & MGC_M_TXCSR_TXPKTRDY) &&
1159
!(value & MGC_M_TXCSR_H_NAKTIMEOUT)) ||
1161
(value & MGC_M_TXCSR_TXPKTRDY)) ||
1165
(value & MGC_M_CSR0_TXPKTRDY) &&
1166
!(value & MGC_M_CSR0_H_NAKTIMEOUT)))
1168
(value & MGC_M_CSR0_TXPKTRDY)))
1172
(value & MGC_M_CSR0_H_REQPKT) &&
1174
!(value & (MGC_M_CSR0_H_NAKTIMEOUT |
1175
MGC_M_CSR0_RXPKTRDY)))
1177
!(value & MGC_M_CSR0_RXPKTRDY))
1182
case MUSB_HDRC_RXMAXP:
1183
s->ep[ep].maxp[1] = value;
1185
case MUSB_HDRC_RXCSR:
1186
/* (DMA mode only) */
1188
(value & MGC_M_RXCSR_H_AUTOREQ) &&
1189
!(value & MGC_M_RXCSR_RXPKTRDY) &&
1190
(s->ep[ep].csr[1] & MGC_M_RXCSR_RXPKTRDY))
1191
value |= MGC_M_RXCSR_H_REQPKT;
1193
s->ep[ep].csr[1] &= 0x102 | (value & 0x4d);
1194
s->ep[ep].csr[1] |= value & 0xfeb0;
1196
musb_ep_frame_cancel(&s->ep[ep], 1);
1198
if (value & MGC_M_RXCSR_FLUSHFIFO) {
1199
s->ep[ep].fifolen[1] = 0;
1200
s->ep[ep].fifostart[1] = 0;
1201
s->ep[ep].csr[1] &= ~(MGC_M_RXCSR_FIFOFULL | MGC_M_RXCSR_RXPKTRDY);
1202
/* If double buffering and we have two packets ready, flush
1203
* only the first one and set up the fifo at the second packet. */
1206
if ((value & MGC_M_RXCSR_H_REQPKT) && !(value & MGC_M_RXCSR_DATAERROR))
1208
if (value & MGC_M_RXCSR_H_REQPKT)
1212
case MUSB_HDRC_RXCOUNT:
1213
s->ep[ep].rxcount = value;
1217
musb_ep_writeb(s, ep, addr, value & 0xff);
1218
musb_ep_writeb(s, ep, addr | 1, value >> 8);
1222
/* Generic control */
1223
static uint32_t musb_readb(void *opaque, target_phys_addr_t addr)
1225
MUSBState *s = (MUSBState *) opaque;
1230
case MUSB_HDRC_FADDR:
1232
case MUSB_HDRC_POWER:
1234
case MUSB_HDRC_INTRUSB:
1236
for (i = 0; i < sizeof(ret) * 8; i ++)
1238
musb_intr_set(s, i, 0);
1240
case MUSB_HDRC_INTRUSBE:
1242
case MUSB_HDRC_INDEX:
1244
case MUSB_HDRC_TESTMODE:
1247
case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1248
return musb_ep_readb(s, s->idx, addr & 0xf);
1250
case MUSB_HDRC_DEVCTL:
1253
case MUSB_HDRC_TXFIFOSZ:
1254
case MUSB_HDRC_RXFIFOSZ:
1255
case MUSB_HDRC_VCTRL:
1259
case MUSB_HDRC_HWVERS:
1260
return (1 << 10) | 400;
1262
case (MUSB_HDRC_VCTRL | 1):
1263
case (MUSB_HDRC_HWVERS | 1):
1264
case (MUSB_HDRC_DEVCTL | 1):
1267
case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1268
ep = (addr >> 3) & 0xf;
1269
return musb_busctl_readb(s, ep, addr & 0x7);
1271
case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1272
ep = (addr >> 4) & 0xf;
1273
return musb_ep_readb(s, ep, addr & 0xf);
1275
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1276
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1277
return musb_read_fifo(s->ep + ep);
1280
TRACE("unknown register 0x%02x", (int) addr);
1285
static void musb_writeb(void *opaque, target_phys_addr_t addr, uint32_t value)
1287
MUSBState *s = (MUSBState *) opaque;
1291
case MUSB_HDRC_FADDR:
1292
s->faddr = value & 0x7f;
1294
case MUSB_HDRC_POWER:
1295
s->power = (value & 0xef) | (s->power & 0x10);
1296
/* MGC_M_POWER_RESET is also read-only in Peripheral Mode */
1297
if ((value & MGC_M_POWER_RESET) && s->port.dev) {
1298
usb_send_msg(s->port.dev, USB_MSG_RESET);
1299
/* Negotiate high-speed operation if MGC_M_POWER_HSENAB is set. */
1300
if ((value & MGC_M_POWER_HSENAB) &&
1301
s->port.dev->speed == USB_SPEED_HIGH)
1302
s->power |= MGC_M_POWER_HSMODE; /* Success */
1303
/* Restart frame counting. */
1305
if (value & MGC_M_POWER_SUSPENDM) {
1306
/* When all transfers finish, suspend and if MGC_M_POWER_ENSUSPEND
1307
* is set, also go into low power mode. Frame counting stops. */
1308
/* XXX: Cleared when the interrupt register is read */
1310
if (value & MGC_M_POWER_RESUME) {
1311
/* Wait 20ms and signal resuming on the bus. Frame counting
1315
case MUSB_HDRC_INTRUSB:
1317
case MUSB_HDRC_INTRUSBE:
1318
s->mask = value & 0xff;
1320
case MUSB_HDRC_INDEX:
1321
s->idx = value & 0xf;
1323
case MUSB_HDRC_TESTMODE:
1326
case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1327
musb_ep_writeb(s, s->idx, addr & 0xf, value);
1330
case MUSB_HDRC_DEVCTL:
1331
s->session = !!(value & MGC_M_DEVCTL_SESSION);
1332
musb_session_update(s,
1334
!!(s->devctl & MGC_M_DEVCTL_SESSION));
1336
/* It seems this is the only R/W bit in this register? */
1337
s->devctl &= ~MGC_M_DEVCTL_SESSION;
1338
s->devctl |= value & MGC_M_DEVCTL_SESSION;
1341
case MUSB_HDRC_TXFIFOSZ:
1342
case MUSB_HDRC_RXFIFOSZ:
1343
case MUSB_HDRC_VCTRL:
1347
case (MUSB_HDRC_VCTRL | 1):
1348
case (MUSB_HDRC_DEVCTL | 1):
1351
case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1352
ep = (addr >> 3) & 0xf;
1353
musb_busctl_writeb(s, ep, addr & 0x7, value);
1356
case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1357
ep = (addr >> 4) & 0xf;
1358
musb_ep_writeb(s, ep, addr & 0xf, value);
1361
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1362
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1363
musb_write_fifo(s->ep + ep, value & 0xff);
1367
TRACE("unknown register 0x%02x", (int) addr);
1372
static uint32_t musb_readh(void *opaque, target_phys_addr_t addr)
1374
MUSBState *s = (MUSBState *) opaque;
1379
case MUSB_HDRC_INTRTX:
1382
for (i = 0; i < sizeof(ret) * 8; i ++)
1384
musb_tx_intr_set(s, i, 0);
1386
case MUSB_HDRC_INTRRX:
1389
for (i = 0; i < sizeof(ret) * 8; i ++)
1391
musb_rx_intr_set(s, i, 0);
1393
case MUSB_HDRC_INTRTXE:
1395
case MUSB_HDRC_INTRRXE:
1398
case MUSB_HDRC_FRAME:
1401
case MUSB_HDRC_TXFIFOADDR:
1402
return s->ep[s->idx].fifoaddr[0];
1403
case MUSB_HDRC_RXFIFOADDR:
1404
return s->ep[s->idx].fifoaddr[1];
1406
case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1407
return musb_ep_readh(s, s->idx, addr & 0xf);
1409
case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1410
ep = (addr >> 3) & 0xf;
1411
return musb_busctl_readh(s, ep, addr & 0x7);
1413
case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1414
ep = (addr >> 4) & 0xf;
1415
return musb_ep_readh(s, ep, addr & 0xf);
1417
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1418
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1419
return (musb_read_fifo(s->ep + ep) | musb_read_fifo(s->ep + ep) << 8);
1422
return musb_readb(s, addr) | (musb_readb(s, addr | 1) << 8);
1426
static void musb_writeh(void *opaque, target_phys_addr_t addr, uint32_t value)
1428
MUSBState *s = (MUSBState *) opaque;
1432
case MUSB_HDRC_INTRTXE:
1434
/* XXX: the masks seem to apply on the raising edge like with
1435
* edge-triggered interrupts, thus no need to update. I may be
1438
case MUSB_HDRC_INTRRXE:
1442
case MUSB_HDRC_FRAME:
1445
case MUSB_HDRC_TXFIFOADDR:
1446
s->ep[s->idx].fifoaddr[0] = value;
1447
s->ep[s->idx].buf[0] =
1448
s->buf + ((value << 3) & 0x7ff );
1450
case MUSB_HDRC_RXFIFOADDR:
1451
s->ep[s->idx].fifoaddr[1] = value;
1452
s->ep[s->idx].buf[1] =
1453
s->buf + ((value << 3) & 0x7ff);
1456
case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1457
musb_ep_writeh(s, s->idx, addr & 0xf, value);
1460
case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1461
ep = (addr >> 3) & 0xf;
1462
musb_busctl_writeh(s, ep, addr & 0x7, value);
1465
case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1466
ep = (addr >> 4) & 0xf;
1467
musb_ep_writeh(s, ep, addr & 0xf, value);
1470
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1471
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1472
musb_write_fifo(s->ep + ep, value & 0xff);
1473
musb_write_fifo(s->ep + ep, (value >> 8) & 0xff);
1477
musb_writeb(s, addr, value & 0xff);
1478
musb_writeb(s, addr | 1, value >> 8);
1482
static uint32_t musb_readw(void *opaque, target_phys_addr_t addr)
1484
MUSBState *s = (MUSBState *) opaque;
1488
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1489
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1490
return ( musb_read_fifo(s->ep + ep) |
1491
musb_read_fifo(s->ep + ep) << 8 |
1492
musb_read_fifo(s->ep + ep) << 16 |
1493
musb_read_fifo(s->ep + ep) << 24 );
1495
TRACE("unknown register 0x%02x", (int) addr);
1500
static void musb_writew(void *opaque, target_phys_addr_t addr, uint32_t value)
1502
MUSBState *s = (MUSBState *) opaque;
1506
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1507
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1508
musb_write_fifo(s->ep + ep, value & 0xff);
1509
musb_write_fifo(s->ep + ep, (value >> 8 ) & 0xff);
1510
musb_write_fifo(s->ep + ep, (value >> 16) & 0xff);
1511
musb_write_fifo(s->ep + ep, (value >> 24) & 0xff);
1514
TRACE("unknown register 0x%02x", (int) addr);
1519
CPUReadMemoryFunc * const musb_read[] = {
1525
CPUWriteMemoryFunc * const musb_write[] = {