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, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 * Only host-mode and non-DMA accesses are currently supported.
24 #include "qemu-common.h"
25 #include "qemu-timer.h"
30 /* Common USB registers */
31 #define MUSB_HDRC_FADDR 0x00 /* 8-bit */
32 #define MUSB_HDRC_POWER 0x01 /* 8-bit */
34 #define MUSB_HDRC_INTRTX 0x02 /* 16-bit */
35 #define MUSB_HDRC_INTRRX 0x04
36 #define MUSB_HDRC_INTRTXE 0x06
37 #define MUSB_HDRC_INTRRXE 0x08
38 #define MUSB_HDRC_INTRUSB 0x0a /* 8 bit */
39 #define MUSB_HDRC_INTRUSBE 0x0b /* 8 bit */
40 #define MUSB_HDRC_FRAME 0x0c /* 16-bit */
41 #define MUSB_HDRC_INDEX 0x0e /* 8 bit */
42 #define MUSB_HDRC_TESTMODE 0x0f /* 8 bit */
44 /* Per-EP registers in indexed mode */
45 #define MUSB_HDRC_EP_IDX 0x10 /* 8-bit */
48 #define MUSB_HDRC_FIFO 0x20
50 /* Additional Control Registers */
51 #define MUSB_HDRC_DEVCTL 0x60 /* 8 bit */
53 /* These are indexed */
54 #define MUSB_HDRC_TXFIFOSZ 0x62 /* 8 bit (see masks) */
55 #define MUSB_HDRC_RXFIFOSZ 0x63 /* 8 bit (see masks) */
56 #define MUSB_HDRC_TXFIFOADDR 0x64 /* 16 bit offset shifted right 3 */
57 #define MUSB_HDRC_RXFIFOADDR 0x66 /* 16 bit offset shifted right 3 */
59 /* Some more registers */
60 #define MUSB_HDRC_VCTRL 0x68 /* 8 bit */
61 #define MUSB_HDRC_HWVERS 0x6c /* 8 bit */
63 /* Added in HDRC 1.9(?) & MHDRC 1.4 */
64 /* ULPI pass-through */
65 #define MUSB_HDRC_ULPI_VBUSCTL 0x70
66 #define MUSB_HDRC_ULPI_REGDATA 0x74
67 #define MUSB_HDRC_ULPI_REGADDR 0x75
68 #define MUSB_HDRC_ULPI_REGCTL 0x76
70 /* Extended config & PHY control */
71 #define MUSB_HDRC_ENDCOUNT 0x78 /* 8 bit */
72 #define MUSB_HDRC_DMARAMCFG 0x79 /* 8 bit */
73 #define MUSB_HDRC_PHYWAIT 0x7a /* 8 bit */
74 #define MUSB_HDRC_PHYVPLEN 0x7b /* 8 bit */
75 #define MUSB_HDRC_HS_EOF1 0x7c /* 8 bit, units of 546.1 us */
76 #define MUSB_HDRC_FS_EOF1 0x7d /* 8 bit, units of 533.3 ns */
77 #define MUSB_HDRC_LS_EOF1 0x7e /* 8 bit, units of 1.067 us */
79 /* Per-EP BUSCTL registers */
80 #define MUSB_HDRC_BUSCTL 0x80
82 /* Per-EP registers in flat mode */
83 #define MUSB_HDRC_EP 0x100
85 /* offsets to registers in flat model */
86 #define MUSB_HDRC_TXMAXP 0x00 /* 16 bit apparently */
87 #define MUSB_HDRC_TXCSR 0x02 /* 16 bit apparently */
88 #define MUSB_HDRC_CSR0 MUSB_HDRC_TXCSR /* re-used for EP0 */
89 #define MUSB_HDRC_RXMAXP 0x04 /* 16 bit apparently */
90 #define MUSB_HDRC_RXCSR 0x06 /* 16 bit apparently */
91 #define MUSB_HDRC_RXCOUNT 0x08 /* 16 bit apparently */
92 #define MUSB_HDRC_COUNT0 MUSB_HDRC_RXCOUNT /* re-used for EP0 */
93 #define MUSB_HDRC_TXTYPE 0x0a /* 8 bit apparently */
94 #define MUSB_HDRC_TYPE0 MUSB_HDRC_TXTYPE /* re-used for EP0 */
95 #define MUSB_HDRC_TXINTERVAL 0x0b /* 8 bit apparently */
96 #define MUSB_HDRC_NAKLIMIT0 MUSB_HDRC_TXINTERVAL /* re-used for EP0 */
97 #define MUSB_HDRC_RXTYPE 0x0c /* 8 bit apparently */
98 #define MUSB_HDRC_RXINTERVAL 0x0d /* 8 bit apparently */
99 #define MUSB_HDRC_FIFOSIZE 0x0f /* 8 bit apparently */
100 #define MUSB_HDRC_CONFIGDATA MGC_O_HDRC_FIFOSIZE /* re-used for EP0 */
102 /* "Bus control" registers */
103 #define MUSB_HDRC_TXFUNCADDR 0x00
104 #define MUSB_HDRC_TXHUBADDR 0x02
105 #define MUSB_HDRC_TXHUBPORT 0x03
107 #define MUSB_HDRC_RXFUNCADDR 0x04
108 #define MUSB_HDRC_RXHUBADDR 0x06
109 #define MUSB_HDRC_RXHUBPORT 0x07
112 * MUSBHDRC Register bit masks
116 #define MGC_M_POWER_ISOUPDATE 0x80
117 #define MGC_M_POWER_SOFTCONN 0x40
118 #define MGC_M_POWER_HSENAB 0x20
119 #define MGC_M_POWER_HSMODE 0x10
120 #define MGC_M_POWER_RESET 0x08
121 #define MGC_M_POWER_RESUME 0x04
122 #define MGC_M_POWER_SUSPENDM 0x02
123 #define MGC_M_POWER_ENSUSPEND 0x01
126 #define MGC_M_INTR_SUSPEND 0x01
127 #define MGC_M_INTR_RESUME 0x02
128 #define MGC_M_INTR_RESET 0x04
129 #define MGC_M_INTR_BABBLE 0x04
130 #define MGC_M_INTR_SOF 0x08
131 #define MGC_M_INTR_CONNECT 0x10
132 #define MGC_M_INTR_DISCONNECT 0x20
133 #define MGC_M_INTR_SESSREQ 0x40
134 #define MGC_M_INTR_VBUSERROR 0x80 /* FOR SESSION END */
135 #define MGC_M_INTR_EP0 0x01 /* FOR EP0 INTERRUPT */
138 #define MGC_M_DEVCTL_BDEVICE 0x80
139 #define MGC_M_DEVCTL_FSDEV 0x40
140 #define MGC_M_DEVCTL_LSDEV 0x20
141 #define MGC_M_DEVCTL_VBUS 0x18
142 #define MGC_S_DEVCTL_VBUS 3
143 #define MGC_M_DEVCTL_HM 0x04
144 #define MGC_M_DEVCTL_HR 0x02
145 #define MGC_M_DEVCTL_SESSION 0x01
148 #define MGC_M_TEST_FORCE_HOST 0x80
149 #define MGC_M_TEST_FIFO_ACCESS 0x40
150 #define MGC_M_TEST_FORCE_FS 0x20
151 #define MGC_M_TEST_FORCE_HS 0x10
152 #define MGC_M_TEST_PACKET 0x08
153 #define MGC_M_TEST_K 0x04
154 #define MGC_M_TEST_J 0x02
155 #define MGC_M_TEST_SE0_NAK 0x01
158 #define MGC_M_CSR0_FLUSHFIFO 0x0100
159 #define MGC_M_CSR0_TXPKTRDY 0x0002
160 #define MGC_M_CSR0_RXPKTRDY 0x0001
162 /* CSR0 in Peripheral mode */
163 #define MGC_M_CSR0_P_SVDSETUPEND 0x0080
164 #define MGC_M_CSR0_P_SVDRXPKTRDY 0x0040
165 #define MGC_M_CSR0_P_SENDSTALL 0x0020
166 #define MGC_M_CSR0_P_SETUPEND 0x0010
167 #define MGC_M_CSR0_P_DATAEND 0x0008
168 #define MGC_M_CSR0_P_SENTSTALL 0x0004
170 /* CSR0 in Host mode */
171 #define MGC_M_CSR0_H_NO_PING 0x0800
172 #define MGC_M_CSR0_H_WR_DATATOGGLE 0x0400 /* set to allow setting: */
173 #define MGC_M_CSR0_H_DATATOGGLE 0x0200 /* data toggle control */
174 #define MGC_M_CSR0_H_NAKTIMEOUT 0x0080
175 #define MGC_M_CSR0_H_STATUSPKT 0x0040
176 #define MGC_M_CSR0_H_REQPKT 0x0020
177 #define MGC_M_CSR0_H_ERROR 0x0010
178 #define MGC_M_CSR0_H_SETUPPKT 0x0008
179 #define MGC_M_CSR0_H_RXSTALL 0x0004
182 #define MGC_M_CONFIGDATA_MPRXE 0x80 /* auto bulk pkt combining */
183 #define MGC_M_CONFIGDATA_MPTXE 0x40 /* auto bulk pkt splitting */
184 #define MGC_M_CONFIGDATA_BIGENDIAN 0x20
185 #define MGC_M_CONFIGDATA_HBRXE 0x10 /* HB-ISO for RX */
186 #define MGC_M_CONFIGDATA_HBTXE 0x08 /* HB-ISO for TX */
187 #define MGC_M_CONFIGDATA_DYNFIFO 0x04 /* dynamic FIFO sizing */
188 #define MGC_M_CONFIGDATA_SOFTCONE 0x02 /* SoftConnect */
189 #define MGC_M_CONFIGDATA_UTMIDW 0x01 /* Width, 0 => 8b, 1 => 16b */
191 /* TXCSR in Peripheral and Host mode */
192 #define MGC_M_TXCSR_AUTOSET 0x8000
193 #define MGC_M_TXCSR_ISO 0x4000
194 #define MGC_M_TXCSR_MODE 0x2000
195 #define MGC_M_TXCSR_DMAENAB 0x1000
196 #define MGC_M_TXCSR_FRCDATATOG 0x0800
197 #define MGC_M_TXCSR_DMAMODE 0x0400
198 #define MGC_M_TXCSR_CLRDATATOG 0x0040
199 #define MGC_M_TXCSR_FLUSHFIFO 0x0008
200 #define MGC_M_TXCSR_FIFONOTEMPTY 0x0002
201 #define MGC_M_TXCSR_TXPKTRDY 0x0001
203 /* TXCSR in Peripheral mode */
204 #define MGC_M_TXCSR_P_INCOMPTX 0x0080
205 #define MGC_M_TXCSR_P_SENTSTALL 0x0020
206 #define MGC_M_TXCSR_P_SENDSTALL 0x0010
207 #define MGC_M_TXCSR_P_UNDERRUN 0x0004
209 /* TXCSR in Host mode */
210 #define MGC_M_TXCSR_H_WR_DATATOGGLE 0x0200
211 #define MGC_M_TXCSR_H_DATATOGGLE 0x0100
212 #define MGC_M_TXCSR_H_NAKTIMEOUT 0x0080
213 #define MGC_M_TXCSR_H_RXSTALL 0x0020
214 #define MGC_M_TXCSR_H_ERROR 0x0004
216 /* RXCSR in Peripheral and Host mode */
217 #define MGC_M_RXCSR_AUTOCLEAR 0x8000
218 #define MGC_M_RXCSR_DMAENAB 0x2000
219 #define MGC_M_RXCSR_DISNYET 0x1000
220 #define MGC_M_RXCSR_DMAMODE 0x0800
221 #define MGC_M_RXCSR_INCOMPRX 0x0100
222 #define MGC_M_RXCSR_CLRDATATOG 0x0080
223 #define MGC_M_RXCSR_FLUSHFIFO 0x0010
224 #define MGC_M_RXCSR_DATAERROR 0x0008
225 #define MGC_M_RXCSR_FIFOFULL 0x0002
226 #define MGC_M_RXCSR_RXPKTRDY 0x0001
228 /* RXCSR in Peripheral mode */
229 #define MGC_M_RXCSR_P_ISO 0x4000
230 #define MGC_M_RXCSR_P_SENTSTALL 0x0040
231 #define MGC_M_RXCSR_P_SENDSTALL 0x0020
232 #define MGC_M_RXCSR_P_OVERRUN 0x0004
234 /* RXCSR in Host mode */
235 #define MGC_M_RXCSR_H_AUTOREQ 0x4000
236 #define MGC_M_RXCSR_H_WR_DATATOGGLE 0x0400
237 #define MGC_M_RXCSR_H_DATATOGGLE 0x0200
238 #define MGC_M_RXCSR_H_RXSTALL 0x0040
239 #define MGC_M_RXCSR_H_REQPKT 0x0020
240 #define MGC_M_RXCSR_H_ERROR 0x0004
243 #define MGC_M_HUBADDR_MULTI_TT 0x80
245 /* ULPI: Added in HDRC 1.9(?) & MHDRC 1.4 */
246 #define MGC_M_ULPI_VBCTL_USEEXTVBUSIND 0x02
247 #define MGC_M_ULPI_VBCTL_USEEXTVBUS 0x01
248 #define MGC_M_ULPI_REGCTL_INT_ENABLE 0x08
249 #define MGC_M_ULPI_REGCTL_READNOTWRITE 0x04
250 #define MGC_M_ULPI_REGCTL_COMPLETE 0x02
251 #define MGC_M_ULPI_REGCTL_REG 0x01
253 /* #define MUSB_DEBUG */
256 #define TRACE(fmt,...) fprintf(stderr, "%s: " fmt "\n", __FUNCTION__, ##__VA_ARGS__)
262 static void musb_attach(USBPort *port, USBDevice *dev);
275 int timeout[2]; /* Always in microframes */
285 /* For callbacks' use */
289 USBCallback *delayed_cb[2];
290 QEMUTimer *intv_timer[2];
314 /* Duplicating the world since 2008!... probably we should have 32
315 * logical, single endpoints instead. */
319 static void musb_vbus_set(MUSBState *s, int level)
322 s->devctl |= 3 << MGC_S_DEVCTL_VBUS;
324 s->devctl &= ~MGC_M_DEVCTL_VBUS;
326 qemu_set_irq(s->irqs[musb_set_vbus], level);
329 static void musb_intr_set(MUSBState *s, int line, int level)
332 s->intr &= ~(1 << line);
333 qemu_irq_lower(s->irqs[line]);
334 } else if (s->mask & (1 << line)) {
335 s->intr |= 1 << line;
336 qemu_irq_raise(s->irqs[line]);
340 static void musb_tx_intr_set(MUSBState *s, int line, int level)
343 s->tx_intr &= ~(1 << line);
345 qemu_irq_lower(s->irqs[musb_irq_tx]);
346 } else if (s->tx_mask & (1 << line)) {
347 s->tx_intr |= 1 << line;
348 qemu_irq_raise(s->irqs[musb_irq_tx]);
352 static void musb_rx_intr_set(MUSBState *s, int line, int level)
356 s->rx_intr &= ~(1 << line);
358 qemu_irq_lower(s->irqs[musb_irq_rx]);
359 } else if (s->rx_mask & (1 << line)) {
360 s->rx_intr |= 1 << line;
361 qemu_irq_raise(s->irqs[musb_irq_rx]);
364 musb_tx_intr_set(s, line, level);
367 uint32_t musb_core_intr_get(MUSBState *s)
369 return (s->rx_intr << 15) | s->tx_intr;
372 void musb_core_intr_clear(MUSBState *s, uint32_t mask)
375 s->rx_intr &= mask >> 15;
377 qemu_irq_lower(s->irqs[musb_irq_rx]);
381 s->tx_intr &= mask & 0xffff;
383 qemu_irq_lower(s->irqs[musb_irq_tx]);
387 void musb_set_size(MUSBState *s, int epnum, int size, int is_tx)
389 s->ep[epnum].ext_size[!is_tx] = size;
390 s->ep[epnum].fifostart[0] = 0;
391 s->ep[epnum].fifostart[1] = 0;
392 s->ep[epnum].fifolen[0] = 0;
393 s->ep[epnum].fifolen[1] = 0;
396 static void musb_session_update(MUSBState *s, int prev_dev, int prev_sess)
398 int detect_prev = prev_dev && prev_sess;
399 int detect = !!s->port.dev && s->session;
401 if (detect && !detect_prev) {
402 /* Let's skip the ID pin sense and VBUS sense formalities and
403 * and signal a successful SRP directly. This should work at least
404 * for the Linux driver stack. */
405 musb_intr_set(s, musb_irq_connect, 1);
407 if (s->port.dev->speed == USB_SPEED_LOW) {
408 s->devctl &= ~MGC_M_DEVCTL_FSDEV;
409 s->devctl |= MGC_M_DEVCTL_LSDEV;
411 s->devctl |= MGC_M_DEVCTL_FSDEV;
412 s->devctl &= ~MGC_M_DEVCTL_LSDEV;
416 s->devctl &= ~MGC_M_DEVCTL_BDEVICE;
419 s->devctl |= MGC_M_DEVCTL_HM;
423 } else if (!detect && detect_prev) {
430 /* Attach or detach a device on our only port. */
431 static void musb_attach(USBPort *port, USBDevice *dev)
433 MUSBState *s = (MUSBState *) port->opaque;
441 usb_attach(port, NULL);
442 /* TODO: signal some interrupts */
445 musb_intr_set(s, musb_irq_vbus_request, 1);
447 /* Send the attach message to device */
448 usb_send_msg(dev, USB_MSG_ATTACH);
450 /* Send the detach message */
451 usb_send_msg(curr, USB_MSG_DETACH);
453 musb_intr_set(s, musb_irq_disconnect, 1);
458 musb_session_update(s, !!curr, s->session);
461 static inline void musb_cb_tick0(void *opaque)
463 MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
465 ep->delayed_cb[0](&ep->packey[0], opaque);
468 static inline void musb_cb_tick1(void *opaque)
470 MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
472 ep->delayed_cb[1](&ep->packey[1], opaque);
475 #define musb_cb_tick (dir ? musb_cb_tick1 : musb_cb_tick0)
477 static inline void musb_schedule_cb(USBPacket *packey, void *opaque, int dir)
479 MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
482 if (ep->status[dir] == USB_RET_NAK)
483 timeout = ep->timeout[dir];
484 else if (ep->interrupt[dir])
487 return musb_cb_tick(opaque);
489 if (!ep->intv_timer[dir])
490 ep->intv_timer[dir] = qemu_new_timer(vm_clock, musb_cb_tick, opaque);
492 qemu_mod_timer(ep->intv_timer[dir], qemu_get_clock(vm_clock) +
493 muldiv64(timeout, ticks_per_sec, 8000));
496 static void musb_schedule0_cb(USBPacket *packey, void *opaque)
498 return musb_schedule_cb(packey, opaque, 0);
501 static void musb_schedule1_cb(USBPacket *packey, void *opaque)
503 return musb_schedule_cb(packey, opaque, 1);
506 static int musb_timeout(int ttype, int speed, int val)
513 case USB_ENDPOINT_XFER_CONTROL:
516 else if (speed == USB_SPEED_HIGH)
517 return 1 << (val - 1);
519 return 8 << (val - 1);
521 case USB_ENDPOINT_XFER_INT:
522 if (speed == USB_SPEED_HIGH)
526 return 1 << (val - 1);
530 case USB_ENDPOINT_XFER_BULK:
531 case USB_ENDPOINT_XFER_ISOC:
534 else if (speed == USB_SPEED_HIGH)
535 return 1 << (val - 1);
537 return 8 << (val - 1);
538 /* TODO: what with low-speed Bulk and Isochronous? */
541 hw_error("bad interval\n");
544 static inline void musb_packet(MUSBState *s, MUSBEndPoint *ep,
545 int epnum, int pid, int len, USBCallback cb, int dir)
548 int idx = epnum && dir;
551 /* ep->type[0,1] contains:
552 * in bits 7:6 the speed (0 - invalid, 1 - high, 2 - full, 3 - slow)
553 * in bits 5:4 the transfer type (BULK / INT)
554 * in bits 3:0 the EP num
556 ttype = epnum ? (ep->type[idx] >> 4) & 3 : 0;
558 ep->timeout[dir] = musb_timeout(ttype,
559 ep->type[idx] >> 6, ep->interval[idx]);
560 ep->interrupt[dir] = ttype == USB_ENDPOINT_XFER_INT;
561 ep->delayed_cb[dir] = cb;
562 cb = dir ? musb_schedule1_cb : musb_schedule0_cb;
564 ep->packey[dir].pid = pid;
565 /* A wild guess on the FADDR semantics... */
566 ep->packey[dir].devaddr = ep->faddr[idx];
567 ep->packey[dir].devep = ep->type[idx] & 0xf;
568 ep->packey[dir].data = (void *) ep->buf[idx];
569 ep->packey[dir].len = len;
570 ep->packey[dir].complete_cb = cb;
571 ep->packey[dir].complete_opaque = ep;
574 ret = s->port.dev->handle_packet(s->port.dev, &ep->packey[dir]);
578 if (ret == USB_RET_ASYNC) {
579 ep->status[dir] = len;
583 ep->status[dir] = ret;
584 usb_packet_complete(&ep->packey[dir]);
587 static void musb_tx_packet_complete(USBPacket *packey, void *opaque)
589 /* Unfortunately we can't use packey->devep because that's the remote
590 * endpoint number and may be different than our local. */
591 MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
592 int epnum = ep->epnum;
593 MUSBState *s = ep->musb;
595 ep->fifostart[0] = 0;
598 if (ep->status[0] != USB_RET_NAK) {
601 ep->csr[0] &= ~(MGC_M_TXCSR_FIFONOTEMPTY | MGC_M_TXCSR_TXPKTRDY);
603 ep->csr[0] &= ~MGC_M_CSR0_TXPKTRDY;
608 /* Clear all of the error bits first */
610 ep->csr[0] &= ~(MGC_M_TXCSR_H_ERROR | MGC_M_TXCSR_H_RXSTALL |
611 MGC_M_TXCSR_H_NAKTIMEOUT);
613 ep->csr[0] &= ~(MGC_M_CSR0_H_ERROR | MGC_M_CSR0_H_RXSTALL |
614 MGC_M_CSR0_H_NAKTIMEOUT | MGC_M_CSR0_H_NO_PING);
616 if (ep->status[0] == USB_RET_STALL) {
617 /* Command not supported by target! */
621 ep->csr[0] |= MGC_M_TXCSR_H_RXSTALL;
623 ep->csr[0] |= MGC_M_CSR0_H_RXSTALL;
626 if (ep->status[0] == USB_RET_NAK) {
629 /* NAK timeouts are only generated in Bulk transfers and
630 * Data-errors in Isochronous. */
631 if (ep->interrupt[0]) {
636 ep->csr[0] |= MGC_M_TXCSR_H_NAKTIMEOUT;
638 ep->csr[0] |= MGC_M_CSR0_H_NAKTIMEOUT;
641 if (ep->status[0] < 0) {
642 if (ep->status[0] == USB_RET_BABBLE)
643 musb_intr_set(s, musb_irq_rst_babble, 1);
645 /* Pretend we've tried three times already and failed (in
646 * case of USB_TOKEN_SETUP). */
648 ep->csr[0] |= MGC_M_TXCSR_H_ERROR;
650 ep->csr[0] |= MGC_M_CSR0_H_ERROR;
652 musb_tx_intr_set(s, epnum, 1);
655 /* TODO: check len for over/underruns of an OUT packet? */
658 if (!epnum && ep->packey[0].pid == USB_TOKEN_SETUP)
659 s->setup_len = ep->packey[0].data[6];
662 /* In DMA mode: if no error, assert DMA request for this EP,
663 * and skip the interrupt. */
664 musb_tx_intr_set(s, epnum, 1);
667 static void musb_rx_packet_complete(USBPacket *packey, void *opaque)
669 /* Unfortunately we can't use packey->devep because that's the remote
670 * endpoint number and may be different than our local. */
671 MUSBEndPoint *ep = (MUSBEndPoint *) opaque;
672 int epnum = ep->epnum;
673 MUSBState *s = ep->musb;
675 ep->fifostart[1] = 0;
679 if (ep->status[1] != USB_RET_NAK) {
681 ep->csr[1] &= ~MGC_M_RXCSR_H_REQPKT;
683 ep->csr[0] &= ~MGC_M_CSR0_H_REQPKT;
688 /* Clear all of the imaginable error bits first */
689 ep->csr[1] &= ~(MGC_M_RXCSR_H_ERROR | MGC_M_RXCSR_H_RXSTALL |
690 MGC_M_RXCSR_DATAERROR);
692 ep->csr[0] &= ~(MGC_M_CSR0_H_ERROR | MGC_M_CSR0_H_RXSTALL |
693 MGC_M_CSR0_H_NAKTIMEOUT | MGC_M_CSR0_H_NO_PING);
695 if (ep->status[1] == USB_RET_STALL) {
699 ep->csr[1] |= MGC_M_RXCSR_H_RXSTALL;
701 ep->csr[0] |= MGC_M_CSR0_H_RXSTALL;
704 if (ep->status[1] == USB_RET_NAK) {
707 /* NAK timeouts are only generated in Bulk transfers and
708 * Data-errors in Isochronous. */
709 if (ep->interrupt[1])
710 return musb_packet(s, ep, epnum, USB_TOKEN_IN,
711 packey->len, musb_rx_packet_complete, 1);
713 ep->csr[1] |= MGC_M_RXCSR_DATAERROR;
715 ep->csr[0] |= MGC_M_CSR0_H_NAKTIMEOUT;
718 if (ep->status[1] < 0) {
719 if (ep->status[1] == USB_RET_BABBLE) {
720 musb_intr_set(s, musb_irq_rst_babble, 1);
724 /* Pretend we've tried three times already and failed (in
725 * case of a control transfer). */
726 ep->csr[1] |= MGC_M_RXCSR_H_ERROR;
728 ep->csr[0] |= MGC_M_CSR0_H_ERROR;
730 musb_rx_intr_set(s, epnum, 1);
733 /* TODO: check len for over/underruns of an OUT packet? */
734 /* TODO: perhaps make use of e->ext_size[1] here. */
736 packey->len = ep->status[1];
738 if (!(ep->csr[1] & (MGC_M_RXCSR_H_RXSTALL | MGC_M_RXCSR_DATAERROR))) {
739 ep->csr[1] |= MGC_M_RXCSR_FIFOFULL | MGC_M_RXCSR_RXPKTRDY;
741 ep->csr[0] |= MGC_M_CSR0_RXPKTRDY;
743 ep->rxcount = packey->len; /* XXX: MIN(packey->len, ep->maxp[1]); */
744 /* In DMA mode: assert DMA request for this EP */
747 /* Only if DMA has not been asserted */
748 musb_rx_intr_set(s, epnum, 1);
751 static void musb_tx_rdy(MUSBState *s, int epnum)
753 MUSBEndPoint *ep = s->ep + epnum;
755 int total, valid = 0;
756 TRACE("start %d, len %d", ep->fifostart[0], ep->fifolen[0] );
757 ep->fifostart[0] += ep->fifolen[0];
760 /* XXX: how's the total size of the packet retrieved exactly in
761 * the generic case? */
762 total = ep->maxp[0] & 0x3ff;
764 if (ep->ext_size[0]) {
765 total = ep->ext_size[0];
770 /* If the packet is not fully ready yet, wait for a next segment. */
771 if (epnum && (ep->fifostart[0]) < total)
775 total = ep->fifostart[0];
778 if (!epnum && (ep->csr[0] & MGC_M_CSR0_H_SETUPPKT)) {
779 pid = USB_TOKEN_SETUP;
781 printf("%s: illegal SETUPPKT length of %i bytes\n",
782 __FUNCTION__, total);
783 /* Controller should retry SETUP packets three times on errors
784 * but it doesn't make sense for us to do that. */
787 return musb_packet(s, ep, epnum, pid,
788 total, musb_tx_packet_complete, 0);
791 static void musb_rx_req(MUSBState *s, int epnum)
793 MUSBEndPoint *ep = s->ep + epnum;
796 /* If we already have a packet, which didn't fit into the
797 * 64 bytes of the FIFO, only move the FIFO start and return. (Obsolete) */
798 if (ep->packey[1].pid == USB_TOKEN_IN && ep->status[1] >= 0 &&
799 (ep->fifostart[1]) + ep->rxcount <
801 TRACE("0x%08x, %d", ep->fifostart[1], ep->rxcount );
802 ep->fifostart[1] += ep->rxcount;
805 ep->rxcount = MIN(ep->packey[0].len - (ep->fifostart[1]),
808 ep->csr[1] &= ~MGC_M_RXCSR_H_REQPKT;
810 ep->csr[0] &= ~MGC_M_CSR0_H_REQPKT;
812 /* Clear all of the error bits first */
813 ep->csr[1] &= ~(MGC_M_RXCSR_H_ERROR | MGC_M_RXCSR_H_RXSTALL |
814 MGC_M_RXCSR_DATAERROR);
816 ep->csr[0] &= ~(MGC_M_CSR0_H_ERROR | MGC_M_CSR0_H_RXSTALL |
817 MGC_M_CSR0_H_NAKTIMEOUT | MGC_M_CSR0_H_NO_PING);
819 ep->csr[1] |= MGC_M_RXCSR_FIFOFULL | MGC_M_RXCSR_RXPKTRDY;
821 ep->csr[0] |= MGC_M_CSR0_RXPKTRDY;
822 musb_rx_intr_set(s, epnum, 1);
826 /* The driver sets maxp[1] to 64 or less because it knows the hardware
827 * FIFO is this deep. Bigger packets get split in
828 * usb_generic_handle_packet but we can also do the splitting locally
829 * for performance. It turns out we can also have a bigger FIFO and
830 * ignore the limit set in ep->maxp[1]. The Linux MUSB driver deals
831 * OK with single packets of even 32KB and we avoid splitting, however
832 * usb_msd.c sometimes sends a packet bigger than what Linux expects
833 * (e.g. 8192 bytes instead of 4096) and we get an OVERRUN. Splitting
834 * hides this overrun from Linux. Up to 4096 everything is fine
835 * though. Currently this is disabled.
837 * XXX: mind ep->fifosize. */
838 total = MIN(ep->maxp[1] & 0x3ff, sizeof(s->buf));
841 /* Why should *we* do that instead of Linux? */
843 if (ep->packey[0].devaddr == 2)
844 total = MIN(s->setup_len, 8);
846 total = MIN(s->setup_len, 64);
847 s->setup_len -= total;
851 return musb_packet(s, ep, epnum, USB_TOKEN_IN,
852 total, musb_rx_packet_complete, 1);
855 static uint8_t musb_read_fifo(MUSBEndPoint *ep)
858 if (ep->fifolen[1] >= 64) {
859 /* We have a FIFO underrun */
860 printf("%s: EP%d FIFO is now empty, stop reading\n",
861 __FUNCTION__, ep->epnum);
864 /* In DMA mode clear RXPKTRDY and set REQPKT automatically
865 * (if AUTOREQ is set) */
867 ep->csr[1] &= ~MGC_M_RXCSR_FIFOFULL;
868 value=ep->buf[1][ep->fifostart[1] + ep->fifolen[1] ++];
869 TRACE("EP%d 0x%02x, %d", ep->epnum, value, ep->fifolen[1] );
873 static void musb_write_fifo(MUSBEndPoint *ep, uint8_t value)
875 TRACE("EP%d = %02x", ep->epnum, value);
876 if (ep->fifolen[0] >= 64) {
877 /* We have a FIFO overrun */
878 printf("%s: EP%d FIFO exceeded 64 bytes, stop feeding data\n",
879 __FUNCTION__, ep->epnum);
883 ep->buf[0][ep->fifostart[0] + ep->fifolen[0] ++] = value;
884 ep->csr[0] |= MGC_M_TXCSR_FIFONOTEMPTY;
887 static void musb_ep_frame_cancel(MUSBEndPoint *ep, int dir)
889 if (ep->intv_timer[dir])
890 qemu_del_timer(ep->intv_timer[dir]);
894 static uint8_t musb_busctl_readb(void *opaque, int ep, int addr)
896 MUSBState *s = (MUSBState *) opaque;
897 // TRACE("ADDR = 0x%08x", addr);
900 /* For USB2.0 HS hubs only */
901 case MUSB_HDRC_TXHUBADDR:
902 return s->ep[ep].haddr[0];
903 case MUSB_HDRC_TXHUBPORT:
904 return s->ep[ep].hport[0];
905 case MUSB_HDRC_RXHUBADDR:
906 return s->ep[ep].haddr[1];
907 case MUSB_HDRC_RXHUBPORT:
908 return s->ep[ep].hport[1];
911 fprintf(stderr ,"%s: unknown register at %02x\n", __FUNCTION__, addr);
916 static void musb_busctl_writeb(void *opaque, int ep, int addr, uint8_t value)
918 MUSBState *s = (MUSBState *) opaque;
921 case MUSB_HDRC_TXFUNCADDR:
922 s->ep[ep].faddr[0] = value;
924 case MUSB_HDRC_RXFUNCADDR:
925 s->ep[ep].faddr[1] = value;
927 case MUSB_HDRC_TXHUBADDR:
928 s->ep[ep].haddr[0] = value;
930 case MUSB_HDRC_TXHUBPORT:
931 s->ep[ep].hport[0] = value;
933 case MUSB_HDRC_RXHUBADDR:
934 s->ep[ep].haddr[1] = value;
936 case MUSB_HDRC_RXHUBPORT:
937 s->ep[ep].hport[1] = value;
941 fprintf(stderr, "%s: unknown register at %02x\n", __FUNCTION__, addr);
945 static uint16_t musb_busctl_readh(void *opaque, int ep, int addr)
947 MUSBState *s = (MUSBState *) opaque;
950 case MUSB_HDRC_TXFUNCADDR:
951 return s->ep[ep].faddr[0];
952 case MUSB_HDRC_RXFUNCADDR:
953 return s->ep[ep].faddr[1];
956 return musb_busctl_readb(s, ep, addr) |
957 (musb_busctl_readb(s, ep, addr | 1) << 8);
961 static void musb_busctl_writeh(void *opaque, int ep, int addr, uint16_t value)
963 MUSBState *s = (MUSBState *) opaque;
966 case MUSB_HDRC_TXFUNCADDR:
967 s->ep[ep].faddr[0] = value;
969 case MUSB_HDRC_RXFUNCADDR:
970 s->ep[ep].faddr[1] = value;
974 musb_busctl_writeb(s, ep, addr, value & 0xff);
975 musb_busctl_writeb(s, ep, addr | 1, value >> 8);
979 /* Endpoint control */
980 static uint8_t musb_ep_readb(void *opaque, int ep, int addr)
982 MUSBState *s = (MUSBState *) opaque;
985 case MUSB_HDRC_TXTYPE:
986 return s->ep[ep].type[0];
987 case MUSB_HDRC_TXINTERVAL:
988 return s->ep[ep].interval[0];
989 case MUSB_HDRC_RXTYPE:
990 return s->ep[ep].type[1];
991 case MUSB_HDRC_RXINTERVAL:
992 return s->ep[ep].interval[1];
993 case (MUSB_HDRC_FIFOSIZE & ~1):
995 case MUSB_HDRC_FIFOSIZE:
996 return ep ? s->ep[ep].fifosize : s->ep[ep].config;
997 case MUSB_HDRC_RXCOUNT:
998 return s->ep[ep].rxcount;
1001 fprintf(stderr, "%s: unknown register at %02x\n", __FUNCTION__, addr);
1006 static void musb_ep_writeb(void *opaque, int ep, int addr, uint8_t value)
1008 MUSBState *s = (MUSBState *) opaque;
1011 case MUSB_HDRC_TXTYPE:
1012 s->ep[ep].type[0] = value;
1014 case MUSB_HDRC_TXINTERVAL:
1015 s->ep[ep].interval[0] = value;
1016 musb_ep_frame_cancel(&s->ep[ep], 0);
1018 case MUSB_HDRC_RXTYPE:
1019 s->ep[ep].type[1] = value;
1021 case MUSB_HDRC_RXINTERVAL:
1022 s->ep[ep].interval[1] = value;
1023 musb_ep_frame_cancel(&s->ep[ep], 1);
1025 case (MUSB_HDRC_FIFOSIZE & ~1):
1027 case MUSB_HDRC_FIFOSIZE:
1028 fprintf(stderr, "%s: somebody messes with fifosize (now %i bytes)\n",
1029 __FUNCTION__, value);
1030 s->ep[ep].fifosize = value;
1033 fprintf(stderr, "%s: unknown register at %02x\n", __FUNCTION__, addr);
1037 static uint16_t musb_ep_readh(void *opaque, int ep, int addr)
1039 MUSBState *s = (MUSBState *) opaque;
1043 case MUSB_HDRC_TXMAXP:
1044 return s->ep[ep].maxp[0];
1045 case MUSB_HDRC_TXCSR:
1046 return s->ep[ep].csr[0];
1047 case MUSB_HDRC_RXMAXP:
1048 return s->ep[ep].maxp[1];
1049 case MUSB_HDRC_RXCSR:
1050 ret = s->ep[ep].csr[1];
1052 /* TODO: This and other bits probably depend on
1053 * ep->csr[1] & MGC_M_RXCSR_AUTOCLEAR. */
1054 if (s->ep[ep].csr[1] & MGC_M_RXCSR_AUTOCLEAR)
1055 s->ep[ep].csr[1] &= ~MGC_M_RXCSR_RXPKTRDY;
1058 case MUSB_HDRC_RXCOUNT:
1059 return s->ep[ep].rxcount;
1062 return musb_ep_readb(s, ep, addr) |
1063 (musb_ep_readb(s, ep, addr | 1) << 8);
1067 static void musb_ep_writeh(void *opaque, int ep, int addr, uint16_t value)
1069 MUSBState *s = (MUSBState *) opaque;
1072 case MUSB_HDRC_TXMAXP:
1073 s->ep[ep].maxp[0] = value;
1075 case MUSB_HDRC_TXCSR:
1077 s->ep[ep].csr[0] &= value & 0xa6;
1078 s->ep[ep].csr[0] |= value & 0xff59;
1080 s->ep[ep].csr[0] &= value & 0x85;
1081 s->ep[ep].csr[0] |= value & 0xf7a;
1084 musb_ep_frame_cancel(&s->ep[ep], 0);
1086 if ((ep && (value & MGC_M_TXCSR_FLUSHFIFO)) ||
1087 (!ep && (value & MGC_M_CSR0_FLUSHFIFO))) {
1088 s->ep[ep].fifolen[0] = 0;
1089 s->ep[ep].fifostart[0] = 0;
1092 ~(MGC_M_TXCSR_FIFONOTEMPTY | MGC_M_TXCSR_TXPKTRDY);
1095 ~(MGC_M_CSR0_TXPKTRDY | MGC_M_CSR0_RXPKTRDY);
1100 (value & MGC_M_TXCSR_TXPKTRDY) &&
1101 !(value & MGC_M_TXCSR_H_NAKTIMEOUT)) ||
1103 (value & MGC_M_TXCSR_TXPKTRDY)) ||
1107 (value & MGC_M_CSR0_TXPKTRDY) &&
1108 !(value & MGC_M_CSR0_H_NAKTIMEOUT)))
1110 (value & MGC_M_CSR0_TXPKTRDY)))
1114 (value & MGC_M_CSR0_H_REQPKT) &&
1116 !(value & (MGC_M_CSR0_H_NAKTIMEOUT |
1117 MGC_M_CSR0_RXPKTRDY)))
1119 !(value & MGC_M_CSR0_RXPKTRDY))
1124 case MUSB_HDRC_RXMAXP:
1125 s->ep[ep].maxp[1] = value;
1127 case MUSB_HDRC_RXCSR:
1128 /* (DMA mode only) */
1130 (value & MGC_M_RXCSR_H_AUTOREQ) &&
1131 !(value & MGC_M_RXCSR_RXPKTRDY) &&
1132 (s->ep[ep].csr[1] & MGC_M_RXCSR_RXPKTRDY))
1133 value |= MGC_M_RXCSR_H_REQPKT;
1135 s->ep[ep].csr[1] &= 0x102 | (value & 0x4d);
1136 s->ep[ep].csr[1] |= value & 0xfeb0;
1138 musb_ep_frame_cancel(&s->ep[ep], 1);
1140 if (value & MGC_M_RXCSR_FLUSHFIFO) {
1141 s->ep[ep].fifolen[1] = 0;
1142 s->ep[ep].fifostart[1] = 0;
1143 s->ep[ep].csr[1] &= ~(MGC_M_RXCSR_FIFOFULL | MGC_M_RXCSR_RXPKTRDY);
1144 /* If double buffering and we have two packets ready, flush
1145 * only the first one and set up the fifo at the second packet. */
1148 if ((value & MGC_M_RXCSR_H_REQPKT) && !(value & MGC_M_RXCSR_DATAERROR))
1150 if (value & MGC_M_RXCSR_H_REQPKT)
1154 case MUSB_HDRC_RXCOUNT:
1155 s->ep[ep].rxcount = value;
1159 musb_ep_writeb(s, ep, addr, value & 0xff);
1160 musb_ep_writeb(s, ep, addr | 1, value >> 8);
1164 /* Generic control */
1165 static uint32_t musb_readb(void *opaque, target_phys_addr_t addr)
1167 MUSBState *s = (MUSBState *) opaque;
1170 // TRACE("ADDR = 0x%08x", addr);
1173 case MUSB_HDRC_FADDR:
1175 case MUSB_HDRC_POWER:
1177 case MUSB_HDRC_INTRUSB:
1179 for (i = 0; i < sizeof(ret) * 8; i ++)
1181 musb_intr_set(s, i, 0);
1183 case MUSB_HDRC_INTRUSBE:
1185 case MUSB_HDRC_INDEX:
1187 case MUSB_HDRC_TESTMODE:
1190 case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1191 return musb_ep_readb(s, s->idx, addr & 0xf);
1193 case MUSB_HDRC_DEVCTL:
1196 case MUSB_HDRC_TXFIFOSZ:
1197 case MUSB_HDRC_RXFIFOSZ:
1198 case MUSB_HDRC_VCTRL:
1202 case MUSB_HDRC_HWVERS:
1203 return (1 << 10) | 400;
1205 case (MUSB_HDRC_VCTRL | 1):
1206 case (MUSB_HDRC_HWVERS | 1):
1207 case (MUSB_HDRC_DEVCTL | 1):
1210 case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1211 ep = (addr >> 3) & 0xf;
1212 return musb_busctl_readb(s, ep, addr & 0x7);
1214 case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1215 ep = (addr >> 4) & 0xf;
1216 return musb_ep_readb(s, ep, addr & 0xf);
1218 case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1219 ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1220 return musb_read_fifo(s->ep + ep);
1223 fprintf(stderr, "%s: unknown register at %02x\n", __FUNCTION__, (int) addr);
1228 static void musb_writeb(void *opaque, target_phys_addr_t addr, uint32_t value)
1230 MUSBState *s = (MUSBState *) opaque;
1232 // TRACE("ADDR = 0x%08x = %08x", addr, value);
1235 case MUSB_HDRC_FADDR:
1236 s->faddr = value & 0x7f;
1238 case MUSB_HDRC_POWER:
1239 s->power = (value & 0xef) | (s->power & 0x10);
1240 /* MGC_M_POWER_RESET is also read-only in Peripheral Mode */
1241 if ((value & MGC_M_POWER_RESET) && s->port.dev) {
1242 usb_send_msg(s->port.dev, USB_MSG_RESET);
1243 /* Negotiate high-speed operation if MGC_M_POWER_HSENAB is set. */
1244 if ((value & MGC_M_POWER_HSENAB) &&
1245 s->port.dev->speed == USB_SPEED_HIGH)
1246 s->power |= MGC_M_POWER_HSMODE; /* Success */
1247 /* Restart frame counting. */
1249 if (value & MGC_M_POWER_SUSPENDM) {
1250 /* When all transfers finish, suspend and if MGC_M_POWER_ENSUSPEND
1251 * is set, also go into low power mode. Frame counting stops. */
1252 /* XXX: Cleared when the interrupt register is read */
1254 if (value & MGC_M_POWER_RESUME) {
1255 /* Wait 20ms and signal resuming on the bus. Frame counting
1259 case MUSB_HDRC_INTRUSB:
1261 case MUSB_HDRC_INTRUSBE:
1262 s->mask = value & 0xff;
1264 case MUSB_HDRC_INDEX:
1265 s->idx = value & 0xf;
1267 case MUSB_HDRC_TESTMODE:
1270 case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1271 musb_ep_writeb(s, s->idx, addr & 0xf, value);
1274 case MUSB_HDRC_DEVCTL:
1275 s->session = !!(value & MGC_M_DEVCTL_SESSION);
1276 musb_session_update(s,
1278 !!(s->devctl & MGC_M_DEVCTL_SESSION));
1280 /* It seems this is the only R/W bit in this register? */
1281 s->devctl &= ~MGC_M_DEVCTL_SESSION;
1282 s->devctl |= value & MGC_M_DEVCTL_SESSION;
1285 case MUSB_HDRC_TXFIFOSZ:
1286 case MUSB_HDRC_RXFIFOSZ:
1287 case MUSB_HDRC_VCTRL:
1291 case (MUSB_HDRC_VCTRL | 1):
1292 case (MUSB_HDRC_DEVCTL | 1):
1295 case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1296 ep = (addr >> 3) & 0xf;
1297 musb_busctl_writeb(s, ep, addr & 0x7, value);
1300 case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1301 ep = (addr >> 4) & 0xf;
1302 musb_ep_writeb(s, ep, addr & 0xf, value);
1305 case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1306 ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1307 musb_write_fifo(s->ep + ep, value & 0xff);
1311 fprintf(stderr, "%s: unknown register at %02x\n", __FUNCTION__, (int) addr);
1315 static uint32_t musb_readh(void *opaque, target_phys_addr_t addr)
1317 MUSBState *s = (MUSBState *) opaque;
1320 // TRACE("ADDR = 0x%08x", addr);
1323 case MUSB_HDRC_INTRTX:
1326 for (i = 0; i < sizeof(ret) * 8; i ++)
1328 musb_tx_intr_set(s, i, 0);
1330 case MUSB_HDRC_INTRRX:
1333 for (i = 0; i < sizeof(ret) * 8; i ++)
1335 musb_rx_intr_set(s, i, 0);
1337 case MUSB_HDRC_INTRTXE:
1339 case MUSB_HDRC_INTRRXE:
1342 case MUSB_HDRC_FRAME:
1345 case MUSB_HDRC_TXFIFOADDR:
1346 return s->ep[s->idx].fifoaddr[0];
1347 case MUSB_HDRC_RXFIFOADDR:
1348 return s->ep[s->idx].fifoaddr[1];
1350 case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1351 return musb_ep_readh(s, s->idx, addr & 0xf);
1353 case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1354 ep = (addr >> 3) & 0xf;
1355 return musb_busctl_readh(s, ep, addr & 0x7);
1357 case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1358 ep = (addr >> 4) & 0xf;
1359 return musb_ep_readh(s, ep, addr & 0xf);
1361 case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1362 ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1363 return (musb_read_fifo(s->ep + ep) | musb_read_fifo(s->ep + ep) << 8);
1366 return musb_readb(s, addr) | (musb_readb(s, addr | 1) << 8);
1370 static void musb_writeh(void *opaque, target_phys_addr_t addr, uint32_t value)
1372 MUSBState *s = (MUSBState *) opaque;
1374 //TRACE("ADDR = 0x%08x = %08x", addr, value);
1377 case MUSB_HDRC_INTRTXE:
1379 /* XXX: the masks seem to apply on the raising edge like with
1380 * edge-triggered interrupts, thus no need to update. I may be
1383 case MUSB_HDRC_INTRRXE:
1387 case MUSB_HDRC_FRAME:
1390 case MUSB_HDRC_TXFIFOADDR:
1391 s->ep[s->idx].fifoaddr[0] = value;
1392 s->ep[s->idx].buf[0] =
1393 s->buf + ((value << 3) & 0x7ff );
1394 //TRACE("TXFIFOADDR = 0x%08x, BUF %08x", value, s->ep[s->idx].buf[0]);
1396 case MUSB_HDRC_RXFIFOADDR:
1397 s->ep[s->idx].fifoaddr[1] = value;
1398 s->ep[s->idx].buf[1] =
1399 s->buf + ((value << 3) & 0x7ff);
1400 //TRACE("RXFIFOADDR = 0x%08x, BUF %08x", value, s->ep[s->idx].buf[1]);
1403 case MUSB_HDRC_EP_IDX ... (MUSB_HDRC_EP_IDX + 0xf):
1404 musb_ep_writeh(s, s->idx, addr & 0xf, value);
1407 case MUSB_HDRC_BUSCTL ... (MUSB_HDRC_BUSCTL + 0x7f):
1408 ep = (addr >> 3) & 0xf;
1409 musb_busctl_writeh(s, ep, addr & 0x7, value);
1412 case MUSB_HDRC_EP ... (MUSB_HDRC_EP + 0xff):
1413 ep = (addr >> 4) & 0xf;
1414 musb_ep_writeh(s, ep, addr & 0xf, value);
1417 case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1418 ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1419 musb_write_fifo(s->ep + ep, value & 0xff);
1420 musb_write_fifo(s->ep + ep, (value >> 8) & 0xff);
1424 musb_writeb(s, addr, value & 0xff);
1425 musb_writeb(s, addr | 1, value >> 8);
1429 static uint32_t musb_readw(void *opaque, target_phys_addr_t addr)
1431 MUSBState *s = (MUSBState *) opaque;
1435 case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1436 ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1437 return ( musb_read_fifo(s->ep + ep) |
1438 musb_read_fifo(s->ep + ep) << 8 |
1439 musb_read_fifo(s->ep + ep) << 16 |
1440 musb_read_fifo(s->ep + ep) << 24 );
1442 fprintf(stderr, "%s: unknown register at %02x\n", __FUNCTION__, (int) addr);
1447 static void musb_writew(void *opaque, target_phys_addr_t addr, uint32_t value)
1449 MUSBState *s = (MUSBState *) opaque;
1451 // TRACE("ADDR = 0x%08x = %08x", addr, value);
1454 case MUSB_HDRC_FIFO ... (MUSB_HDRC_FIFO + 0x3f):
1455 ep = ((addr - MUSB_HDRC_FIFO) >> 2) & 0xf;
1456 musb_write_fifo(s->ep + ep, value & 0xff);
1457 musb_write_fifo(s->ep + ep, (value >> 8 ) & 0xff);
1458 musb_write_fifo(s->ep + ep, (value >> 16) & 0xff);
1459 musb_write_fifo(s->ep + ep, (value >> 24) & 0xff);
1462 fprintf(stderr, "%s: unknown register at %02x\n", __FUNCTION__, (int) addr);
1466 CPUReadMemoryFunc *musb_read[] = {
1472 CPUWriteMemoryFunc *musb_write[] = {
1478 static void musb_save_state(QEMUFile *f, void *opaque)
1480 MUSBState *s = (MUSBState *)opaque;
1483 qemu_put_sbe32(f, s->idx);
1484 qemu_put_byte(f, s->devctl);
1485 qemu_put_byte(f, s->power);
1486 qemu_put_byte(f, s->faddr);
1487 qemu_put_byte(f, s->intr);
1488 qemu_put_byte(f, s->mask);
1489 qemu_put_be16(f, s->tx_intr);
1490 qemu_put_be16(f, s->tx_mask);
1491 qemu_put_be16(f, s->rx_intr);
1492 qemu_put_be16(f, s->rx_mask);
1493 qemu_put_sbe32(f, s->setup_len);
1494 qemu_put_sbe32(f, s->session);
1495 qemu_put_buffer(f, s->buf, sizeof(s->buf));
1496 for (i = 0; i < 16; i++) {
1497 qemu_put_be16(f, s->ep[i].rxcount);
1498 qemu_put_byte(f, s->ep[i].config);
1499 qemu_put_byte(f, s->ep[i].fifosize);
1500 for (j = 0; j < 2; j++) {
1501 qemu_put_be16(f, s->ep[i].faddr[j]);
1502 qemu_put_byte(f, s->ep[i].haddr[j]);
1503 qemu_put_byte(f, s->ep[i].hport[j]);
1504 qemu_put_be16(f, s->ep[i].csr[j]);
1505 qemu_put_be16(f, s->ep[i].maxp[j]);
1506 qemu_put_byte(f, s->ep[i].type[j]);
1507 qemu_put_byte(f, s->ep[i].interval[j]);
1508 qemu_put_sbe32(f, s->ep[i].timeout[j]);
1509 if (s->ep[i].buf[j])
1510 qemu_put_be32(f, s->ep[i].buf[j] - s->buf);
1512 qemu_put_be32(f, 0xffffffff);
1513 qemu_put_sbe32(f, s->ep[i].fifolen[j]);
1514 qemu_put_sbe32(f, s->ep[i].fifostart[j]);
1515 qemu_put_sbe32(f, s->ep[i].fifoaddr[j]);
1516 qemu_put_sbe32(f, s->ep[i].packey[j].pid);
1517 qemu_put_byte(f, s->ep[i].packey[j].devaddr);
1518 qemu_put_byte(f, s->ep[i].packey[j].devep);
1519 qemu_put_sbe32(f, s->ep[i].packey[j].len);
1520 qemu_put_sbe32(f, s->ep[i].status[j]);
1521 qemu_put_sbe32(f, s->ep[i].ext_size[j]);
1522 qemu_put_sbe32(f, s->ep[i].interrupt[j]);
1523 if (s->ep[i].delayed_cb[j] == musb_rx_packet_complete)
1524 qemu_put_byte(f, 1);
1525 else if (s->ep[i].delayed_cb[j] == musb_tx_packet_complete)
1526 qemu_put_byte(f, 2);
1528 qemu_put_byte(f, 0);
1529 if (s->ep[i].intv_timer[j]) {
1530 qemu_put_byte(f, 1);
1531 qemu_put_timer(f, s->ep[i].intv_timer[j]);
1533 qemu_put_byte(f, 0);
1538 static int musb_load_state(QEMUFile *f, void *opaque, int version_id)
1540 MUSBState *s = (MUSBState *)opaque;
1547 s->idx = qemu_get_sbe32(f);
1548 s->devctl = qemu_get_byte(f);
1549 s->power = qemu_get_byte(f);
1550 s->faddr = qemu_get_byte(f);
1551 s->intr = qemu_get_byte(f);
1552 s->mask = qemu_get_byte(f);
1553 s->tx_intr = qemu_get_be16(f);
1554 s->tx_mask = qemu_get_be16(f);
1555 s->rx_intr = qemu_get_be16(f);
1556 s->rx_mask = qemu_get_be16(f);
1557 s->setup_len = qemu_get_sbe32(f);
1558 s->session = qemu_get_sbe32(f);
1559 qemu_get_buffer(f, s->buf, sizeof(s->buf));
1560 for (i = 0; i < 16; i++) {
1561 s->ep[i].rxcount = qemu_get_be16(f);
1562 s->ep[i].config = qemu_get_byte(f);
1563 s->ep[i].fifosize = qemu_get_byte(f);
1564 for (j = 0; j < 2; j++) {
1565 s->ep[i].faddr[j] = qemu_get_be16(f);
1566 s->ep[i].haddr[j] = qemu_get_byte(f);
1567 s->ep[i].hport[j] = qemu_get_byte(f);
1568 s->ep[i].csr[j] = qemu_get_be16(f);
1569 s->ep[i].maxp[j] = qemu_get_be16(f);
1570 s->ep[i].type[j] = qemu_get_byte(f);
1571 s->ep[i].interval[j] = qemu_get_byte(f);
1572 s->ep[i].timeout[j] = qemu_get_sbe32(f);
1573 x = qemu_get_be32(f);
1574 if (x != 0xffffffff)
1575 s->ep[i].buf[j] = s->buf + x;
1577 s->ep[i].buf[j] = 0;
1578 s->ep[i].fifolen[j] = qemu_get_sbe32(f);
1579 s->ep[i].fifostart[j] = qemu_get_sbe32(f);
1580 s->ep[i].fifoaddr[j] = qemu_get_sbe32(f);
1581 s->ep[i].packey[j].pid = qemu_get_sbe32(f);
1582 s->ep[i].packey[j].devaddr = qemu_get_byte(f);
1583 s->ep[i].packey[j].devep = qemu_get_byte(f);
1584 s->ep[i].packey[j].data = s->ep[i].buf[j];
1585 s->ep[i].packey[j].len = qemu_get_sbe32(f);
1586 s->ep[i].packey[j].complete_opaque = &s->ep[i];
1587 s->ep[i].status[j] = qemu_get_sbe32(f);
1588 s->ep[i].ext_size[j] = qemu_get_sbe32(f);
1589 s->ep[i].interrupt[j] = qemu_get_sbe32(f);
1590 switch (qemu_get_byte(f)) {
1592 s->ep[i].delayed_cb[j] = 0;
1593 s->ep[i].packey[j].complete_cb = 0;
1596 s->ep[i].delayed_cb[j] = musb_rx_packet_complete;
1597 s->ep[i].packey[j].complete_cb = musb_rx_packet_complete;
1600 s->ep[i].delayed_cb[j] = musb_tx_packet_complete;
1601 s->ep[i].packey[j].complete_cb = musb_tx_packet_complete;
1604 fprintf(stderr, "%s: unknown delayed_cb\n", __FUNCTION__);
1608 if (qemu_get_byte(f)) {
1609 if (!s->ep[i].intv_timer[j]) {
1610 s->ep[i].intv_timer[j] =
1611 qemu_new_timer(vm_clock,
1612 j ? musb_cb_tick1 : musb_cb_tick0,
1615 qemu_get_timer(f, s->ep[i].intv_timer[j]);
1620 /* TODO: restore interrupt status */
1625 MUSBState *musb_init(qemu_irq *irqs)
1627 MUSBState *s = qemu_mallocz(sizeof(*s));
1633 s->power = MGC_M_POWER_HSENAB;
1634 s->tx_intr = 0x0000;
1635 s->rx_intr = 0x0000;
1636 s->tx_mask = 0xffff;
1637 s->rx_mask = 0xffff;
1643 s->ep[0].config = MGC_M_CONFIGDATA_SOFTCONE | MGC_M_CONFIGDATA_DYNFIFO;
1644 for (i = 0; i < 16; i ++) {
1645 s->ep[i].fifosize = 64;
1646 s->ep[i].maxp[0] = 0x40;
1647 s->ep[i].maxp[1] = 0x40;
1652 qemu_register_usb_port(&s->port, s, 0, musb_attach);
1653 register_savevm("musb", -1, 0, musb_save_state, musb_load_state, s);