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];
317
qemu_irq irqs[musb_irq_max];
338
/* Duplicating the world since 2008!... probably we should have 32
339
* logical, single endpoints instead. */
343
void musb_reset(MUSBState *s)
349
s->power = MGC_M_POWER_HSENAB;
360
memset(s->buf, 0, sizeof(s->buf));
363
s->ep[0].config = MGC_M_CONFIGDATA_SOFTCONE | MGC_M_CONFIGDATA_DYNFIFO;
364
for (i = 0; i < 16; i ++) {
365
s->ep[i].fifosize = 64;
366
s->ep[i].maxp[0] = 0x40;
367
s->ep[i].maxp[1] = 0x40;
370
usb_packet_init(&s->ep[i].packey[0].p);
371
usb_packet_init(&s->ep[i].packey[1].p);
375
struct MUSBState *musb_init(DeviceState *parent_device, int gpio_base)
377
MUSBState *s = g_malloc0(sizeof(*s));
380
for (i = 0; i < musb_irq_max; i++) {
381
s->irqs[i] = qdev_get_gpio_in(parent_device, gpio_base + i);
386
usb_bus_new(&s->bus, sizeof(s->bus), &musb_bus_ops, parent_device);
387
usb_register_port(&s->bus, &s->port, s, 0, &musb_port_ops,
388
USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL);
393
static void musb_vbus_set(MUSBState *s, int level)
396
s->devctl |= 3 << MGC_S_DEVCTL_VBUS;
398
s->devctl &= ~MGC_M_DEVCTL_VBUS;
400
qemu_set_irq(s->irqs[musb_set_vbus], level);
403
static void musb_intr_set(MUSBState *s, int line, int level)
406
s->intr &= ~(1 << line);
407
qemu_irq_lower(s->irqs[line]);
408
} else if (s->mask & (1 << line)) {
409
s->intr |= 1 << line;
410
qemu_irq_raise(s->irqs[line]);
414
static void musb_tx_intr_set(MUSBState *s, int line, int level)
417
s->tx_intr &= ~(1 << line);
419
qemu_irq_lower(s->irqs[musb_irq_tx]);
420
} else if (s->tx_mask & (1 << line)) {
421
s->tx_intr |= 1 << line;
422
qemu_irq_raise(s->irqs[musb_irq_tx]);
426
static void musb_rx_intr_set(MUSBState *s, int line, int level)
430
s->rx_intr &= ~(1 << line);
432
qemu_irq_lower(s->irqs[musb_irq_rx]);
433
} else if (s->rx_mask & (1 << line)) {
434
s->rx_intr |= 1 << line;
435
qemu_irq_raise(s->irqs[musb_irq_rx]);
438
musb_tx_intr_set(s, line, level);
441
uint32_t musb_core_intr_get(MUSBState *s)
443
return (s->rx_intr << 15) | s->tx_intr;
446
void musb_core_intr_clear(MUSBState *s, uint32_t mask)
449
s->rx_intr &= mask >> 15;
451
qemu_irq_lower(s->irqs[musb_irq_rx]);
455
s->tx_intr &= mask & 0xffff;
457
qemu_irq_lower(s->irqs[musb_irq_tx]);
461
void musb_set_size(MUSBState *s, int epnum, int size, int is_tx)
463
s->ep[epnum].ext_size[!is_tx] = size;
464
s->ep[epnum].fifostart[0] = 0;
465
s->ep[epnum].fifostart[1] = 0;
466
s->ep[epnum].fifolen[0] = 0;
467
s->ep[epnum].fifolen[1] = 0;
470
static void musb_session_update(MUSBState *s, int prev_dev, int prev_sess)
472
int detect_prev = prev_dev && prev_sess;
473
int detect = !!s->port.dev && s->session;
475
if (detect && !detect_prev) {
476
/* Let's skip the ID pin sense and VBUS sense formalities and
477
* and signal a successful SRP directly. This should work at least
478
* for the Linux driver stack. */
479
musb_intr_set(s, musb_irq_connect, 1);
481
if (s->port.dev->speed == USB_SPEED_LOW) {
482
s->devctl &= ~MGC_M_DEVCTL_FSDEV;
483
s->devctl |= MGC_M_DEVCTL_LSDEV;
485
s->devctl |= MGC_M_DEVCTL_FSDEV;
486
s->devctl &= ~MGC_M_DEVCTL_LSDEV;
490
s->devctl &= ~MGC_M_DEVCTL_BDEVICE;
493
s->devctl |= MGC_M_DEVCTL_HM;
497
} else if (!detect && detect_prev) {
504
/* Attach or detach a device on our only port. */
505
static void musb_attach(USBPort *port)
507
MUSBState *s = (MUSBState *) port->opaque;
509
musb_intr_set(s, musb_irq_vbus_request, 1);
510
musb_session_update(s, 0, s->session);
513
static void musb_detach(USBPort *port)
515
MUSBState *s = (MUSBState *) port->opaque;
517
musb_async_cancel_device(s, port->dev);
519
musb_intr_set(s, musb_irq_disconnect, 1);
520
musb_session_update(s, 1, s->session);
523
static void musb_child_detach(USBPort *port, USBDevice *child)
525
MUSBState *s = (MUSBState *) port->opaque;
527
musb_async_cancel_device(s, child);
530
static void musb_cb_tick0(void *opaque)
532
MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
534
ep->delayed_cb[0](&ep->packey[0].p, opaque);
537
static void musb_cb_tick1(void *opaque)
539
MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
541
ep->delayed_cb[1](&ep->packey[1].p, opaque);
544
#define musb_cb_tick (dir ? musb_cb_tick1 : musb_cb_tick0)
546
static void musb_schedule_cb(USBPort *port, USBPacket *packey)
548
MUSBPacket *p = container_of(packey, MUSBPacket, p);
549
MUSBEndPoint *ep = p->ep;
553
if (ep->status[dir] == USB_RET_NAK)
554
timeout = ep->timeout[dir];
555
else if (ep->interrupt[dir])
558
return musb_cb_tick(ep);
560
if (!ep->intv_timer[dir])
561
ep->intv_timer[dir] = timer_new_ns(QEMU_CLOCK_VIRTUAL, musb_cb_tick, ep);
563
timer_mod(ep->intv_timer[dir], qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
564
muldiv64(timeout, get_ticks_per_sec(), 8000));
567
static int musb_timeout(int ttype, int speed, int val)
574
case USB_ENDPOINT_XFER_CONTROL:
577
else if (speed == USB_SPEED_HIGH)
578
return 1 << (val - 1);
580
return 8 << (val - 1);
582
case USB_ENDPOINT_XFER_INT:
583
if (speed == USB_SPEED_HIGH)
587
return 1 << (val - 1);
591
case USB_ENDPOINT_XFER_BULK:
592
case USB_ENDPOINT_XFER_ISOC:
595
else if (speed == USB_SPEED_HIGH)
596
return 1 << (val - 1);
598
return 8 << (val - 1);
599
/* TODO: what with low-speed Bulk and Isochronous? */
602
hw_error("bad interval\n");
605
static void musb_packet(MUSBState *s, MUSBEndPoint *ep,
606
int epnum, int pid, int len, USBCallback cb, int dir)
610
int idx = epnum && dir;
613
/* ep->type[0,1] contains:
614
* in bits 7:6 the speed (0 - invalid, 1 - high, 2 - full, 3 - slow)
615
* in bits 5:4 the transfer type (BULK / INT)
616
* in bits 3:0 the EP num
618
ttype = epnum ? (ep->type[idx] >> 4) & 3 : 0;
620
ep->timeout[dir] = musb_timeout(ttype,
621
ep->type[idx] >> 6, ep->interval[idx]);
622
ep->interrupt[dir] = ttype == USB_ENDPOINT_XFER_INT;
623
ep->delayed_cb[dir] = cb;
625
/* A wild guess on the FADDR semantics... */
626
dev = usb_find_device(&s->port, ep->faddr[idx]);
627
uep = usb_ep_get(dev, pid, ep->type[idx] & 0xf);
628
usb_packet_setup(&ep->packey[dir].p, pid, uep, 0,
629
(dev->addr << 16) | (uep->nr << 8) | pid, false, true);
630
usb_packet_addbuf(&ep->packey[dir].p, ep->buf[idx], len);
631
ep->packey[dir].ep = ep;
632
ep->packey[dir].dir = dir;
634
usb_handle_packet(dev, &ep->packey[dir].p);
636
if (ep->packey[dir].p.status == USB_RET_ASYNC) {
637
usb_device_flush_ep_queue(dev, uep);
638
ep->status[dir] = len;
642
if (ep->packey[dir].p.status == USB_RET_SUCCESS) {
643
ep->status[dir] = ep->packey[dir].p.actual_length;
645
ep->status[dir] = ep->packey[dir].p.status;
647
musb_schedule_cb(&s->port, &ep->packey[dir].p);
650
static void musb_tx_packet_complete(USBPacket *packey, void *opaque)
652
/* Unfortunately we can't use packey->devep because that's the remote
653
* endpoint number and may be different than our local. */
654
MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
655
int epnum = ep->epnum;
656
MUSBState *s = ep->musb;
658
ep->fifostart[0] = 0;
661
if (ep->status[0] != USB_RET_NAK) {
664
ep->csr[0] &= ~(MGC_M_TXCSR_FIFONOTEMPTY | MGC_M_TXCSR_TXPKTRDY);
666
ep->csr[0] &= ~MGC_M_CSR0_TXPKTRDY;
671
/* Clear all of the error bits first */
673
ep->csr[0] &= ~(MGC_M_TXCSR_H_ERROR | MGC_M_TXCSR_H_RXSTALL |
674
MGC_M_TXCSR_H_NAKTIMEOUT);
676
ep->csr[0] &= ~(MGC_M_CSR0_H_ERROR | MGC_M_CSR0_H_RXSTALL |
677
MGC_M_CSR0_H_NAKTIMEOUT | MGC_M_CSR0_H_NO_PING);
679
if (ep->status[0] == USB_RET_STALL) {
680
/* Command not supported by target! */
684
ep->csr[0] |= MGC_M_TXCSR_H_RXSTALL;
686
ep->csr[0] |= MGC_M_CSR0_H_RXSTALL;
689
if (ep->status[0] == USB_RET_NAK) {
692
/* NAK timeouts are only generated in Bulk transfers and
693
* Data-errors in Isochronous. */
694
if (ep->interrupt[0]) {
699
ep->csr[0] |= MGC_M_TXCSR_H_NAKTIMEOUT;
701
ep->csr[0] |= MGC_M_CSR0_H_NAKTIMEOUT;
704
if (ep->status[0] < 0) {
705
if (ep->status[0] == USB_RET_BABBLE)
706
musb_intr_set(s, musb_irq_rst_babble, 1);
708
/* Pretend we've tried three times already and failed (in
709
* case of USB_TOKEN_SETUP). */
711
ep->csr[0] |= MGC_M_TXCSR_H_ERROR;
713
ep->csr[0] |= MGC_M_CSR0_H_ERROR;
715
musb_tx_intr_set(s, epnum, 1);
718
/* TODO: check len for over/underruns of an OUT packet? */
721
if (!epnum && ep->packey[0].pid == USB_TOKEN_SETUP)
722
s->setup_len = ep->packey[0].data[6];
725
/* In DMA mode: if no error, assert DMA request for this EP,
726
* and skip the interrupt. */
727
musb_tx_intr_set(s, epnum, 1);
730
static void musb_rx_packet_complete(USBPacket *packey, void *opaque)
732
/* Unfortunately we can't use packey->devep because that's the remote
733
* endpoint number and may be different than our local. */
734
MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
735
int epnum = ep->epnum;
736
MUSBState *s = ep->musb;
738
ep->fifostart[1] = 0;
742
if (ep->status[1] != USB_RET_NAK) {
744
ep->csr[1] &= ~MGC_M_RXCSR_H_REQPKT;
746
ep->csr[0] &= ~MGC_M_CSR0_H_REQPKT;
751
/* Clear all of the imaginable error bits first */
752
ep->csr[1] &= ~(MGC_M_RXCSR_H_ERROR | MGC_M_RXCSR_H_RXSTALL |
753
MGC_M_RXCSR_DATAERROR);
755
ep->csr[0] &= ~(MGC_M_CSR0_H_ERROR | MGC_M_CSR0_H_RXSTALL |
756
MGC_M_CSR0_H_NAKTIMEOUT | MGC_M_CSR0_H_NO_PING);
758
if (ep->status[1] == USB_RET_STALL) {
761
ep->csr[1] |= MGC_M_RXCSR_H_RXSTALL;
763
ep->csr[0] |= MGC_M_CSR0_H_RXSTALL;
766
if (ep->status[1] == USB_RET_NAK) {
769
/* NAK timeouts are only generated in Bulk transfers and
770
* Data-errors in Isochronous. */
771
if (ep->interrupt[1])
772
return musb_packet(s, ep, epnum, USB_TOKEN_IN,
773
packey->iov.size, musb_rx_packet_complete, 1);
775
ep->csr[1] |= MGC_M_RXCSR_DATAERROR;
777
ep->csr[0] |= MGC_M_CSR0_H_NAKTIMEOUT;
780
if (ep->status[1] < 0) {
781
if (ep->status[1] == USB_RET_BABBLE) {
782
musb_intr_set(s, musb_irq_rst_babble, 1);
786
/* Pretend we've tried three times already and failed (in
787
* case of a control transfer). */
788
ep->csr[1] |= MGC_M_RXCSR_H_ERROR;
790
ep->csr[0] |= MGC_M_CSR0_H_ERROR;
792
musb_rx_intr_set(s, epnum, 1);
795
/* TODO: check len for over/underruns of an OUT packet? */
796
/* TODO: perhaps make use of e->ext_size[1] here. */
798
if (!(ep->csr[1] & (MGC_M_RXCSR_H_RXSTALL | MGC_M_RXCSR_DATAERROR))) {
799
ep->csr[1] |= MGC_M_RXCSR_FIFOFULL | MGC_M_RXCSR_RXPKTRDY;
801
ep->csr[0] |= MGC_M_CSR0_RXPKTRDY;
803
ep->rxcount = ep->status[1]; /* XXX: MIN(packey->len, ep->maxp[1]); */
804
/* In DMA mode: assert DMA request for this EP */
807
/* Only if DMA has not been asserted */
808
musb_rx_intr_set(s, epnum, 1);
811
static void musb_async_cancel_device(MUSBState *s, USBDevice *dev)
815
for (ep = 0; ep < 16; ep++) {
816
for (dir = 0; dir < 2; dir++) {
817
if (!usb_packet_is_inflight(&s->ep[ep].packey[dir].p) ||
818
s->ep[ep].packey[dir].p.ep->dev != dev) {
821
usb_cancel_packet(&s->ep[ep].packey[dir].p);
822
/* status updates needed here? */
827
static void musb_tx_rdy(MUSBState *s, int epnum)
829
MUSBEndPoint *ep = s->ep + epnum;
831
int total, valid = 0;
832
TRACE("start %d, len %d", ep->fifostart[0], ep->fifolen[0] );
833
ep->fifostart[0] += ep->fifolen[0];
836
/* XXX: how's the total size of the packet retrieved exactly in
837
* the generic case? */
838
total = ep->maxp[0] & 0x3ff;
840
if (ep->ext_size[0]) {
841
total = ep->ext_size[0];
846
/* If the packet is not fully ready yet, wait for a next segment. */
847
if (epnum && (ep->fifostart[0]) < total)
851
total = ep->fifostart[0];
854
if (!epnum && (ep->csr[0] & MGC_M_CSR0_H_SETUPPKT)) {
855
pid = USB_TOKEN_SETUP;
857
TRACE("illegal SETUPPKT length of %i bytes", total);
859
/* Controller should retry SETUP packets three times on errors
860
* but it doesn't make sense for us to do that. */
863
return musb_packet(s, ep, epnum, pid,
864
total, musb_tx_packet_complete, 0);
867
static void musb_rx_req(MUSBState *s, int epnum)
869
MUSBEndPoint *ep = s->ep + epnum;
872
/* If we already have a packet, which didn't fit into the
873
* 64 bytes of the FIFO, only move the FIFO start and return. (Obsolete) */
874
if (ep->packey[1].p.pid == USB_TOKEN_IN && ep->status[1] >= 0 &&
875
(ep->fifostart[1]) + ep->rxcount <
876
ep->packey[1].p.iov.size) {
877
TRACE("0x%08x, %d", ep->fifostart[1], ep->rxcount );
878
ep->fifostart[1] += ep->rxcount;
881
ep->rxcount = MIN(ep->packey[0].p.iov.size - (ep->fifostart[1]),
884
ep->csr[1] &= ~MGC_M_RXCSR_H_REQPKT;
886
ep->csr[0] &= ~MGC_M_CSR0_H_REQPKT;
888
/* Clear all of the error bits first */
889
ep->csr[1] &= ~(MGC_M_RXCSR_H_ERROR | MGC_M_RXCSR_H_RXSTALL |
890
MGC_M_RXCSR_DATAERROR);
892
ep->csr[0] &= ~(MGC_M_CSR0_H_ERROR | MGC_M_CSR0_H_RXSTALL |
893
MGC_M_CSR0_H_NAKTIMEOUT | MGC_M_CSR0_H_NO_PING);
895
ep->csr[1] |= MGC_M_RXCSR_FIFOFULL | MGC_M_RXCSR_RXPKTRDY;
897
ep->csr[0] |= MGC_M_CSR0_RXPKTRDY;
898
musb_rx_intr_set(s, epnum, 1);
902
/* The driver sets maxp[1] to 64 or less because it knows the hardware
903
* FIFO is this deep. Bigger packets get split in
904
* usb_generic_handle_packet but we can also do the splitting locally
905
* for performance. It turns out we can also have a bigger FIFO and
906
* ignore the limit set in ep->maxp[1]. The Linux MUSB driver deals
907
* OK with single packets of even 32KB and we avoid splitting, however
908
* usb_msd.c sometimes sends a packet bigger than what Linux expects
909
* (e.g. 8192 bytes instead of 4096) and we get an OVERRUN. Splitting
910
* hides this overrun from Linux. Up to 4096 everything is fine
911
* though. Currently this is disabled.
913
* XXX: mind ep->fifosize. */
914
total = MIN(ep->maxp[1] & 0x3ff, sizeof(s->buf));
917
/* Why should *we* do that instead of Linux? */
919
if (ep->packey[0].p.devaddr == 2) {
920
total = MIN(s->setup_len, 8);
922
total = MIN(s->setup_len, 64);
924
s->setup_len -= total;
928
return musb_packet(s, ep, epnum, USB_TOKEN_IN,
929
total, musb_rx_packet_complete, 1);
932
static uint8_t musb_read_fifo(MUSBEndPoint *ep)
935
if (ep->fifolen[1] >= 64) {
936
/* We have a FIFO underrun */
937
TRACE("EP%d FIFO is now empty, stop reading", ep->epnum);
940
/* In DMA mode clear RXPKTRDY and set REQPKT automatically
941
* (if AUTOREQ is set) */
943
ep->csr[1] &= ~MGC_M_RXCSR_FIFOFULL;
944
value=ep->buf[1][ep->fifostart[1] + ep->fifolen[1] ++];
945
TRACE("EP%d 0x%02x, %d", ep->epnum, value, ep->fifolen[1] );
949
static void musb_write_fifo(MUSBEndPoint *ep, uint8_t value)
951
TRACE("EP%d = %02x", ep->epnum, value);
952
if (ep->fifolen[0] >= 64) {
953
/* We have a FIFO overrun */
954
TRACE("EP%d FIFO exceeded 64 bytes, stop feeding data", ep->epnum);
958
ep->buf[0][ep->fifostart[0] + ep->fifolen[0] ++] = value;
959
ep->csr[0] |= MGC_M_TXCSR_FIFONOTEMPTY;
962
static void musb_ep_frame_cancel(MUSBEndPoint *ep, int dir)
964
if (ep->intv_timer[dir])
965
timer_del(ep->intv_timer[dir]);
969
static uint8_t musb_busctl_readb(void *opaque, int ep, int addr)
971
MUSBState *s = (MUSBState *) opaque;
974
/* For USB2.0 HS hubs only */
975
case MUSB_HDRC_TXHUBADDR:
976
return s->ep[ep].haddr[0];
977
case MUSB_HDRC_TXHUBPORT:
978
return s->ep[ep].hport[0];
979
case MUSB_HDRC_RXHUBADDR:
980
return s->ep[ep].haddr[1];
981
case MUSB_HDRC_RXHUBPORT:
982
return s->ep[ep].hport[1];
985
TRACE("unknown register 0x%02x", addr);
990
static void musb_busctl_writeb(void *opaque, int ep, int addr, uint8_t value)
992
MUSBState *s = (MUSBState *) opaque;
995
case MUSB_HDRC_TXFUNCADDR:
996
s->ep[ep].faddr[0] = value;
998
case MUSB_HDRC_RXFUNCADDR:
999
s->ep[ep].faddr[1] = value;
1001
case MUSB_HDRC_TXHUBADDR:
1002
s->ep[ep].haddr[0] = value;
1004
case MUSB_HDRC_TXHUBPORT:
1005
s->ep[ep].hport[0] = value;
1007
case MUSB_HDRC_RXHUBADDR:
1008
s->ep[ep].haddr[1] = value;
1010
case MUSB_HDRC_RXHUBPORT:
1011
s->ep[ep].hport[1] = value;
1015
TRACE("unknown register 0x%02x", addr);
1020
static uint16_t musb_busctl_readh(void *opaque, int ep, int addr)
1022
MUSBState *s = (MUSBState *) opaque;
1025
case MUSB_HDRC_TXFUNCADDR:
1026
return s->ep[ep].faddr[0];
1027
case MUSB_HDRC_RXFUNCADDR:
1028
return s->ep[ep].faddr[1];
1031
return musb_busctl_readb(s, ep, addr) |
1032
(musb_busctl_readb(s, ep, addr | 1) << 8);
1036
static void musb_busctl_writeh(void *opaque, int ep, int addr, uint16_t value)
1038
MUSBState *s = (MUSBState *) opaque;
1041
case MUSB_HDRC_TXFUNCADDR:
1042
s->ep[ep].faddr[0] = value;
1044
case MUSB_HDRC_RXFUNCADDR:
1045
s->ep[ep].faddr[1] = value;
1049
musb_busctl_writeb(s, ep, addr, value & 0xff);
1050
musb_busctl_writeb(s, ep, addr | 1, value >> 8);
1054
/* Endpoint control */
1055
static uint8_t musb_ep_readb(void *opaque, int ep, int addr)
1057
MUSBState *s = (MUSBState *) opaque;
1060
case MUSB_HDRC_TXTYPE:
1061
return s->ep[ep].type[0];
1062
case MUSB_HDRC_TXINTERVAL:
1063
return s->ep[ep].interval[0];
1064
case MUSB_HDRC_RXTYPE:
1065
return s->ep[ep].type[1];
1066
case MUSB_HDRC_RXINTERVAL:
1067
return s->ep[ep].interval[1];
1068
case (MUSB_HDRC_FIFOSIZE & ~1):
1070
case MUSB_HDRC_FIFOSIZE:
1071
return ep ? s->ep[ep].fifosize : s->ep[ep].config;
1072
case MUSB_HDRC_RXCOUNT:
1073
return s->ep[ep].rxcount;
1076
TRACE("unknown register 0x%02x", addr);
1081
static void musb_ep_writeb(void *opaque, int ep, int addr, uint8_t value)
1083
MUSBState *s = (MUSBState *) opaque;
1086
case MUSB_HDRC_TXTYPE:
1087
s->ep[ep].type[0] = value;
1089
case MUSB_HDRC_TXINTERVAL:
1090
s->ep[ep].interval[0] = value;
1091
musb_ep_frame_cancel(&s->ep[ep], 0);
1093
case MUSB_HDRC_RXTYPE:
1094
s->ep[ep].type[1] = value;
1096
case MUSB_HDRC_RXINTERVAL:
1097
s->ep[ep].interval[1] = value;
1098
musb_ep_frame_cancel(&s->ep[ep], 1);
1100
case (MUSB_HDRC_FIFOSIZE & ~1):
1102
case MUSB_HDRC_FIFOSIZE:
1103
TRACE("somebody messes with fifosize (now %i bytes)", value);
1104
s->ep[ep].fifosize = value;
1107
TRACE("unknown register 0x%02x", addr);
1112
static uint16_t musb_ep_readh(void *opaque, int ep, int addr)
1114
MUSBState *s = (MUSBState *) opaque;
1118
case MUSB_HDRC_TXMAXP:
1119
return s->ep[ep].maxp[0];
1120
case MUSB_HDRC_TXCSR:
1121
return s->ep[ep].csr[0];
1122
case MUSB_HDRC_RXMAXP:
1123
return s->ep[ep].maxp[1];
1124
case MUSB_HDRC_RXCSR:
1125
ret = s->ep[ep].csr[1];
1127
/* TODO: This and other bits probably depend on
1128
* ep->csr[1] & MGC_M_RXCSR_AUTOCLEAR. */
1129
if (s->ep[ep].csr[1] & MGC_M_RXCSR_AUTOCLEAR)
1130
s->ep[ep].csr[1] &= ~MGC_M_RXCSR_RXPKTRDY;
1133
case MUSB_HDRC_RXCOUNT:
1134
return s->ep[ep].rxcount;
1137
return musb_ep_readb(s, ep, addr) |
1138
(musb_ep_readb(s, ep, addr | 1) << 8);
1142
static void musb_ep_writeh(void *opaque, int ep, int addr, uint16_t value)
1144
MUSBState *s = (MUSBState *) opaque;
1147
case MUSB_HDRC_TXMAXP:
1148
s->ep[ep].maxp[0] = value;
1150
case MUSB_HDRC_TXCSR:
1152
s->ep[ep].csr[0] &= value & 0xa6;
1153
s->ep[ep].csr[0] |= value & 0xff59;
1155
s->ep[ep].csr[0] &= value & 0x85;
1156
s->ep[ep].csr[0] |= value & 0xf7a;
1159
musb_ep_frame_cancel(&s->ep[ep], 0);
1161
if ((ep && (value & MGC_M_TXCSR_FLUSHFIFO)) ||
1162
(!ep && (value & MGC_M_CSR0_FLUSHFIFO))) {
1163
s->ep[ep].fifolen[0] = 0;
1164
s->ep[ep].fifostart[0] = 0;
1167
~(MGC_M_TXCSR_FIFONOTEMPTY | MGC_M_TXCSR_TXPKTRDY);
1170
~(MGC_M_CSR0_TXPKTRDY | MGC_M_CSR0_RXPKTRDY);
1175
(value & MGC_M_TXCSR_TXPKTRDY) &&
1176
!(value & MGC_M_TXCSR_H_NAKTIMEOUT)) ||
1178
(value & MGC_M_TXCSR_TXPKTRDY)) ||
1182
(value & MGC_M_CSR0_TXPKTRDY) &&
1183
!(value & MGC_M_CSR0_H_NAKTIMEOUT)))
1185
(value & MGC_M_CSR0_TXPKTRDY)))
1189
(value & MGC_M_CSR0_H_REQPKT) &&
1191
!(value & (MGC_M_CSR0_H_NAKTIMEOUT |
1192
MGC_M_CSR0_RXPKTRDY)))
1194
!(value & MGC_M_CSR0_RXPKTRDY))
1199
case MUSB_HDRC_RXMAXP:
1200
s->ep[ep].maxp[1] = value;
1202
case MUSB_HDRC_RXCSR:
1203
/* (DMA mode only) */
1205
(value & MGC_M_RXCSR_H_AUTOREQ) &&
1206
!(value & MGC_M_RXCSR_RXPKTRDY) &&
1207
(s->ep[ep].csr[1] & MGC_M_RXCSR_RXPKTRDY))
1208
value |= MGC_M_RXCSR_H_REQPKT;
1210
s->ep[ep].csr[1] &= 0x102 | (value & 0x4d);
1211
s->ep[ep].csr[1] |= value & 0xfeb0;
1213
musb_ep_frame_cancel(&s->ep[ep], 1);
1215
if (value & MGC_M_RXCSR_FLUSHFIFO) {
1216
s->ep[ep].fifolen[1] = 0;
1217
s->ep[ep].fifostart[1] = 0;
1218
s->ep[ep].csr[1] &= ~(MGC_M_RXCSR_FIFOFULL | MGC_M_RXCSR_RXPKTRDY);
1219
/* If double buffering and we have two packets ready, flush
1220
* only the first one and set up the fifo at the second packet. */
1223
if ((value & MGC_M_RXCSR_H_REQPKT) && !(value & MGC_M_RXCSR_DATAERROR))
1225
if (value & MGC_M_RXCSR_H_REQPKT)
1229
case MUSB_HDRC_RXCOUNT:
1230
s->ep[ep].rxcount = value;
1234
musb_ep_writeb(s, ep, addr, value & 0xff);
1235
musb_ep_writeb(s, ep, addr | 1, value >> 8);
1239
/* Generic control */
1240
static uint32_t musb_readb(void *opaque, hwaddr addr)
1242
MUSBState *s = (MUSBState *) opaque;
1247
case MUSB_HDRC_FADDR:
1249
case MUSB_HDRC_POWER:
1251
case MUSB_HDRC_INTRUSB:
1253
for (i = 0; i < sizeof(ret) * 8; i ++)
1255
musb_intr_set(s, i, 0);
1257
case MUSB_HDRC_INTRUSBE:
1259
case MUSB_HDRC_INDEX:
1261
case MUSB_HDRC_TESTMODE:
1264
case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1265
return musb_ep_readb(s, s->idx, addr & 0xf);
1267
case MUSB_HDRC_DEVCTL:
1270
case MUSB_HDRC_TXFIFOSZ:
1271
case MUSB_HDRC_RXFIFOSZ:
1272
case MUSB_HDRC_VCTRL:
1276
case MUSB_HDRC_HWVERS:
1277
return (1 << 10) | 400;
1279
case (MUSB_HDRC_VCTRL | 1):
1280
case (MUSB_HDRC_HWVERS | 1):
1281
case (MUSB_HDRC_DEVCTL | 1):
1284
case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1285
ep = (addr >> 3) & 0xf;
1286
return musb_busctl_readb(s, ep, addr & 0x7);
1288
case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1289
ep = (addr >> 4) & 0xf;
1290
return musb_ep_readb(s, ep, addr & 0xf);
1292
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1293
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1294
return musb_read_fifo(s->ep + ep);
1297
TRACE("unknown register 0x%02x", (int) addr);
1302
static void musb_writeb(void *opaque, hwaddr addr, uint32_t value)
1304
MUSBState *s = (MUSBState *) opaque;
1308
case MUSB_HDRC_FADDR:
1309
s->faddr = value & 0x7f;
1311
case MUSB_HDRC_POWER:
1312
s->power = (value & 0xef) | (s->power & 0x10);
1313
/* MGC_M_POWER_RESET is also read-only in Peripheral Mode */
1314
if ((value & MGC_M_POWER_RESET) && s->port.dev) {
1315
usb_device_reset(s->port.dev);
1316
/* Negotiate high-speed operation if MGC_M_POWER_HSENAB is set. */
1317
if ((value & MGC_M_POWER_HSENAB) &&
1318
s->port.dev->speed == USB_SPEED_HIGH)
1319
s->power |= MGC_M_POWER_HSMODE; /* Success */
1320
/* Restart frame counting. */
1322
if (value & MGC_M_POWER_SUSPENDM) {
1323
/* When all transfers finish, suspend and if MGC_M_POWER_ENSUSPEND
1324
* is set, also go into low power mode. Frame counting stops. */
1325
/* XXX: Cleared when the interrupt register is read */
1327
if (value & MGC_M_POWER_RESUME) {
1328
/* Wait 20ms and signal resuming on the bus. Frame counting
1332
case MUSB_HDRC_INTRUSB:
1334
case MUSB_HDRC_INTRUSBE:
1335
s->mask = value & 0xff;
1337
case MUSB_HDRC_INDEX:
1338
s->idx = value & 0xf;
1340
case MUSB_HDRC_TESTMODE:
1343
case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1344
musb_ep_writeb(s, s->idx, addr & 0xf, value);
1347
case MUSB_HDRC_DEVCTL:
1348
s->session = !!(value & MGC_M_DEVCTL_SESSION);
1349
musb_session_update(s,
1351
!!(s->devctl & MGC_M_DEVCTL_SESSION));
1353
/* It seems this is the only R/W bit in this register? */
1354
s->devctl &= ~MGC_M_DEVCTL_SESSION;
1355
s->devctl |= value & MGC_M_DEVCTL_SESSION;
1358
case MUSB_HDRC_TXFIFOSZ:
1359
case MUSB_HDRC_RXFIFOSZ:
1360
case MUSB_HDRC_VCTRL:
1364
case (MUSB_HDRC_VCTRL | 1):
1365
case (MUSB_HDRC_DEVCTL | 1):
1368
case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1369
ep = (addr >> 3) & 0xf;
1370
musb_busctl_writeb(s, ep, addr & 0x7, value);
1373
case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1374
ep = (addr >> 4) & 0xf;
1375
musb_ep_writeb(s, ep, addr & 0xf, value);
1378
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1379
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1380
musb_write_fifo(s->ep + ep, value & 0xff);
1384
TRACE("unknown register 0x%02x", (int) addr);
1389
static uint32_t musb_readh(void *opaque, hwaddr addr)
1391
MUSBState *s = (MUSBState *) opaque;
1396
case MUSB_HDRC_INTRTX:
1399
for (i = 0; i < sizeof(ret) * 8; i ++)
1401
musb_tx_intr_set(s, i, 0);
1403
case MUSB_HDRC_INTRRX:
1406
for (i = 0; i < sizeof(ret) * 8; i ++)
1408
musb_rx_intr_set(s, i, 0);
1410
case MUSB_HDRC_INTRTXE:
1412
case MUSB_HDRC_INTRRXE:
1415
case MUSB_HDRC_FRAME:
1418
case MUSB_HDRC_TXFIFOADDR:
1419
return s->ep[s->idx].fifoaddr[0];
1420
case MUSB_HDRC_RXFIFOADDR:
1421
return s->ep[s->idx].fifoaddr[1];
1423
case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1424
return musb_ep_readh(s, s->idx, addr & 0xf);
1426
case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1427
ep = (addr >> 3) & 0xf;
1428
return musb_busctl_readh(s, ep, addr & 0x7);
1430
case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1431
ep = (addr >> 4) & 0xf;
1432
return musb_ep_readh(s, ep, addr & 0xf);
1434
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1435
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1436
return (musb_read_fifo(s->ep + ep) | musb_read_fifo(s->ep + ep) << 8);
1439
return musb_readb(s, addr) | (musb_readb(s, addr | 1) << 8);
1443
static void musb_writeh(void *opaque, hwaddr addr, uint32_t value)
1445
MUSBState *s = (MUSBState *) opaque;
1449
case MUSB_HDRC_INTRTXE:
1451
/* XXX: the masks seem to apply on the raising edge like with
1452
* edge-triggered interrupts, thus no need to update. I may be
1455
case MUSB_HDRC_INTRRXE:
1459
case MUSB_HDRC_FRAME:
1462
case MUSB_HDRC_TXFIFOADDR:
1463
s->ep[s->idx].fifoaddr[0] = value;
1464
s->ep[s->idx].buf[0] =
1465
s->buf + ((value << 3) & 0x7ff );
1467
case MUSB_HDRC_RXFIFOADDR:
1468
s->ep[s->idx].fifoaddr[1] = value;
1469
s->ep[s->idx].buf[1] =
1470
s->buf + ((value << 3) & 0x7ff);
1473
case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1474
musb_ep_writeh(s, s->idx, addr & 0xf, value);
1477
case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1478
ep = (addr >> 3) & 0xf;
1479
musb_busctl_writeh(s, ep, addr & 0x7, value);
1482
case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1483
ep = (addr >> 4) & 0xf;
1484
musb_ep_writeh(s, ep, addr & 0xf, value);
1487
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1488
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1489
musb_write_fifo(s->ep + ep, value & 0xff);
1490
musb_write_fifo(s->ep + ep, (value >> 8) & 0xff);
1494
musb_writeb(s, addr, value & 0xff);
1495
musb_writeb(s, addr | 1, value >> 8);
1499
static uint32_t musb_readw(void *opaque, hwaddr addr)
1501
MUSBState *s = (MUSBState *) opaque;
1505
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1506
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1507
return ( musb_read_fifo(s->ep + ep) |
1508
musb_read_fifo(s->ep + ep) << 8 |
1509
musb_read_fifo(s->ep + ep) << 16 |
1510
musb_read_fifo(s->ep + ep) << 24 );
1512
TRACE("unknown register 0x%02x", (int) addr);
1517
static void musb_writew(void *opaque, hwaddr addr, uint32_t value)
1519
MUSBState *s = (MUSBState *) opaque;
1523
case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1524
ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1525
musb_write_fifo(s->ep + ep, value & 0xff);
1526
musb_write_fifo(s->ep + ep, (value >> 8 ) & 0xff);
1527
musb_write_fifo(s->ep + ep, (value >> 16) & 0xff);
1528
musb_write_fifo(s->ep + ep, (value >> 24) & 0xff);
1531
TRACE("unknown register 0x%02x", (int) addr);
1536
CPUReadMemoryFunc * const musb_read[] = {
1542
CPUWriteMemoryFunc * const musb_write[] = {