1f1ae32a1SGerd Hoffmann /* 2f1ae32a1SGerd Hoffmann * QEMU USB EHCI Emulation 3f1ae32a1SGerd Hoffmann * 4f1ae32a1SGerd Hoffmann * Copyright(c) 2008 Emutex Ltd. (address@hidden) 5522079ddSHans de Goede * Copyright(c) 2011-2012 Red Hat, Inc. 6522079ddSHans de Goede * 7522079ddSHans de Goede * Red Hat Authors: 8522079ddSHans de Goede * Gerd Hoffmann <kraxel@redhat.com> 9522079ddSHans de Goede * Hans de Goede <hdegoede@redhat.com> 10f1ae32a1SGerd Hoffmann * 11f1ae32a1SGerd Hoffmann * EHCI project was started by Mark Burkley, with contributions by 12f1ae32a1SGerd Hoffmann * Niels de Vos. David S. Ahern continued working on it. Kevin Wolf, 13f1ae32a1SGerd Hoffmann * Jan Kiszka and Vincent Palatin contributed bugfixes. 14f1ae32a1SGerd Hoffmann * 15f1ae32a1SGerd Hoffmann * 16f1ae32a1SGerd Hoffmann * This library is free software; you can redistribute it and/or 17f1ae32a1SGerd Hoffmann * modify it under the terms of the GNU Lesser General Public 18f1ae32a1SGerd Hoffmann * License as published by the Free Software Foundation; either 19f1ae32a1SGerd Hoffmann * version 2 of the License, or(at your option) any later version. 20f1ae32a1SGerd Hoffmann * 21f1ae32a1SGerd Hoffmann * This library is distributed in the hope that it will be useful, 22f1ae32a1SGerd Hoffmann * but WITHOUT ANY WARRANTY; without even the implied warranty of 23f1ae32a1SGerd Hoffmann * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 24f1ae32a1SGerd Hoffmann * Lesser General Public License for more details. 25f1ae32a1SGerd Hoffmann * 26f1ae32a1SGerd Hoffmann * You should have received a copy of the GNU General Public License 27f1ae32a1SGerd Hoffmann * along with this program; if not, see <http://www.gnu.org/licenses/>. 28f1ae32a1SGerd Hoffmann */ 29f1ae32a1SGerd Hoffmann 30e532b2e0SPeter Maydell #include "qemu/osdep.h" 31da34e65cSMarkus Armbruster #include "qapi/error.h" 32381626a9SGerd Hoffmann #include "hw/usb/ehci-regs.h" 330bf96f94SGerd Hoffmann #include "hw/usb/hcd-ehci.h" 3412269616SStefan Weil #include "trace.h" 35f1ae32a1SGerd Hoffmann 36f1ae32a1SGerd Hoffmann #define FRAME_TIMER_FREQ 1000 3713566fe3SStefan Hajnoczi #define FRAME_TIMER_NS (NANOSECONDS_PER_SECOND / FRAME_TIMER_FREQ) 389359a58bSHans de Goede #define UFRAME_TIMER_NS (FRAME_TIMER_NS / 8) 39f1ae32a1SGerd Hoffmann 40f1ae32a1SGerd Hoffmann #define NB_MAXINTRATE 8 // Max rate at which controller issues ints 41f1ae32a1SGerd Hoffmann #define BUFF_SIZE 5*4096 // Max bytes to transfer per transaction 42f1ae32a1SGerd Hoffmann #define MAX_QH 100 // Max allowable queue heads in a chain 439359a58bSHans de Goede #define MIN_UFR_PER_TICK 24 /* Min frames to process when catching up */ 449359a58bSHans de Goede #define PERIODIC_ACTIVE 512 /* Micro-frames */ 45f1ae32a1SGerd Hoffmann 46f1ae32a1SGerd Hoffmann /* Internal periodic / asynchronous schedule state machine states 47f1ae32a1SGerd Hoffmann */ 48f1ae32a1SGerd Hoffmann typedef enum { 49f1ae32a1SGerd Hoffmann EST_INACTIVE = 1000, 50f1ae32a1SGerd Hoffmann EST_ACTIVE, 51f1ae32a1SGerd Hoffmann EST_EXECUTING, 52f1ae32a1SGerd Hoffmann EST_SLEEPING, 53f1ae32a1SGerd Hoffmann /* The following states are internal to the state machine function 54f1ae32a1SGerd Hoffmann */ 55f1ae32a1SGerd Hoffmann EST_WAITLISTHEAD, 56f1ae32a1SGerd Hoffmann EST_FETCHENTRY, 57f1ae32a1SGerd Hoffmann EST_FETCHQH, 58f1ae32a1SGerd Hoffmann EST_FETCHITD, 59f1ae32a1SGerd Hoffmann EST_FETCHSITD, 60f1ae32a1SGerd Hoffmann EST_ADVANCEQUEUE, 61f1ae32a1SGerd Hoffmann EST_FETCHQTD, 62f1ae32a1SGerd Hoffmann EST_EXECUTE, 63f1ae32a1SGerd Hoffmann EST_WRITEBACK, 64f1ae32a1SGerd Hoffmann EST_HORIZONTALQH 65f1ae32a1SGerd Hoffmann } EHCI_STATES; 66f1ae32a1SGerd Hoffmann 67f1ae32a1SGerd Hoffmann /* macros for accessing fields within next link pointer entry */ 68f1ae32a1SGerd Hoffmann #define NLPTR_GET(x) ((x) & 0xffffffe0) 69f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_GET(x) (((x) >> 1) & 3) 70f1ae32a1SGerd Hoffmann #define NLPTR_TBIT(x) ((x) & 1) // 1=invalid, 0=valid 71f1ae32a1SGerd Hoffmann 72f1ae32a1SGerd Hoffmann /* link pointer types */ 73f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_ITD 0 // isoc xfer descriptor 74f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_QH 1 // queue head 75f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_STITD 2 // split xaction, isoc xfer descriptor 76f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_FSTN 3 // frame span traversal node 77f1ae32a1SGerd Hoffmann 78f1ae32a1SGerd Hoffmann #define SET_LAST_RUN_CLOCK(s) \ 79bc72ad67SAlex Bligh (s)->last_run_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 80f1ae32a1SGerd Hoffmann 81f1ae32a1SGerd Hoffmann /* nifty macros from Arnon's EHCI version */ 82f1ae32a1SGerd Hoffmann #define get_field(data, field) \ 83f1ae32a1SGerd Hoffmann (((data) & field##_MASK) >> field##_SH) 84f1ae32a1SGerd Hoffmann 85f1ae32a1SGerd Hoffmann #define set_field(data, newval, field) do { \ 86f1ae32a1SGerd Hoffmann uint32_t val = *data; \ 87f1ae32a1SGerd Hoffmann val &= ~ field##_MASK; \ 88f1ae32a1SGerd Hoffmann val |= ((newval) << field##_SH) & field##_MASK; \ 89f1ae32a1SGerd Hoffmann *data = val; \ 90f1ae32a1SGerd Hoffmann } while(0) 91f1ae32a1SGerd Hoffmann 92f1ae32a1SGerd Hoffmann static const char *ehci_state_names[] = { 93f1ae32a1SGerd Hoffmann [EST_INACTIVE] = "INACTIVE", 94f1ae32a1SGerd Hoffmann [EST_ACTIVE] = "ACTIVE", 95f1ae32a1SGerd Hoffmann [EST_EXECUTING] = "EXECUTING", 96f1ae32a1SGerd Hoffmann [EST_SLEEPING] = "SLEEPING", 97f1ae32a1SGerd Hoffmann [EST_WAITLISTHEAD] = "WAITLISTHEAD", 98f1ae32a1SGerd Hoffmann [EST_FETCHENTRY] = "FETCH ENTRY", 99f1ae32a1SGerd Hoffmann [EST_FETCHQH] = "FETCH QH", 100f1ae32a1SGerd Hoffmann [EST_FETCHITD] = "FETCH ITD", 101f1ae32a1SGerd Hoffmann [EST_ADVANCEQUEUE] = "ADVANCEQUEUE", 102f1ae32a1SGerd Hoffmann [EST_FETCHQTD] = "FETCH QTD", 103f1ae32a1SGerd Hoffmann [EST_EXECUTE] = "EXECUTE", 104f1ae32a1SGerd Hoffmann [EST_WRITEBACK] = "WRITEBACK", 105f1ae32a1SGerd Hoffmann [EST_HORIZONTALQH] = "HORIZONTALQH", 106f1ae32a1SGerd Hoffmann }; 107f1ae32a1SGerd Hoffmann 108f1ae32a1SGerd Hoffmann static const char *ehci_mmio_names[] = { 109f1ae32a1SGerd Hoffmann [USBCMD] = "USBCMD", 110f1ae32a1SGerd Hoffmann [USBSTS] = "USBSTS", 111f1ae32a1SGerd Hoffmann [USBINTR] = "USBINTR", 112f1ae32a1SGerd Hoffmann [FRINDEX] = "FRINDEX", 113f1ae32a1SGerd Hoffmann [PERIODICLISTBASE] = "P-LIST BASE", 114f1ae32a1SGerd Hoffmann [ASYNCLISTADDR] = "A-LIST ADDR", 115f1ae32a1SGerd Hoffmann [CONFIGFLAG] = "CONFIGFLAG", 116f1ae32a1SGerd Hoffmann }; 117f1ae32a1SGerd Hoffmann 1184b63a0dfSHans de Goede static int ehci_state_executing(EHCIQueue *q); 1194b63a0dfSHans de Goede static int ehci_state_writeback(EHCIQueue *q); 120ff80ce59SHans de Goede static int ehci_state_advqueue(EHCIQueue *q); 121b4ea8664SHans de Goede static int ehci_fill_queue(EHCIPacket *p); 1222b3de6adSHans de Goede static void ehci_free_packet(EHCIPacket *p); 1234b63a0dfSHans de Goede 124f1ae32a1SGerd Hoffmann static const char *nr2str(const char **n, size_t len, uint32_t nr) 125f1ae32a1SGerd Hoffmann { 126f1ae32a1SGerd Hoffmann if (nr < len && n[nr] != NULL) { 127f1ae32a1SGerd Hoffmann return n[nr]; 128f1ae32a1SGerd Hoffmann } else { 129f1ae32a1SGerd Hoffmann return "unknown"; 130f1ae32a1SGerd Hoffmann } 131f1ae32a1SGerd Hoffmann } 132f1ae32a1SGerd Hoffmann 133f1ae32a1SGerd Hoffmann static const char *state2str(uint32_t state) 134f1ae32a1SGerd Hoffmann { 135f1ae32a1SGerd Hoffmann return nr2str(ehci_state_names, ARRAY_SIZE(ehci_state_names), state); 136f1ae32a1SGerd Hoffmann } 137f1ae32a1SGerd Hoffmann 138a8170e5eSAvi Kivity static const char *addr2str(hwaddr addr) 139f1ae32a1SGerd Hoffmann { 14027a11324SPeter Crosthwaite return nr2str(ehci_mmio_names, ARRAY_SIZE(ehci_mmio_names), addr); 141f1ae32a1SGerd Hoffmann } 142f1ae32a1SGerd Hoffmann 143f1ae32a1SGerd Hoffmann static void ehci_trace_usbsts(uint32_t mask, int state) 144f1ae32a1SGerd Hoffmann { 145f1ae32a1SGerd Hoffmann /* interrupts */ 146f1ae32a1SGerd Hoffmann if (mask & USBSTS_INT) { 147f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("INT", state); 148f1ae32a1SGerd Hoffmann } 149f1ae32a1SGerd Hoffmann if (mask & USBSTS_ERRINT) { 150f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("ERRINT", state); 151f1ae32a1SGerd Hoffmann } 152f1ae32a1SGerd Hoffmann if (mask & USBSTS_PCD) { 153f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("PCD", state); 154f1ae32a1SGerd Hoffmann } 155f1ae32a1SGerd Hoffmann if (mask & USBSTS_FLR) { 156f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("FLR", state); 157f1ae32a1SGerd Hoffmann } 158f1ae32a1SGerd Hoffmann if (mask & USBSTS_HSE) { 159f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("HSE", state); 160f1ae32a1SGerd Hoffmann } 161f1ae32a1SGerd Hoffmann if (mask & USBSTS_IAA) { 162f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("IAA", state); 163f1ae32a1SGerd Hoffmann } 164f1ae32a1SGerd Hoffmann 165f1ae32a1SGerd Hoffmann /* status */ 166f1ae32a1SGerd Hoffmann if (mask & USBSTS_HALT) { 167f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("HALT", state); 168f1ae32a1SGerd Hoffmann } 169f1ae32a1SGerd Hoffmann if (mask & USBSTS_REC) { 170f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("REC", state); 171f1ae32a1SGerd Hoffmann } 172f1ae32a1SGerd Hoffmann if (mask & USBSTS_PSS) { 173f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("PSS", state); 174f1ae32a1SGerd Hoffmann } 175f1ae32a1SGerd Hoffmann if (mask & USBSTS_ASS) { 176f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("ASS", state); 177f1ae32a1SGerd Hoffmann } 178f1ae32a1SGerd Hoffmann } 179f1ae32a1SGerd Hoffmann 180f1ae32a1SGerd Hoffmann static inline void ehci_set_usbsts(EHCIState *s, int mask) 181f1ae32a1SGerd Hoffmann { 182f1ae32a1SGerd Hoffmann if ((s->usbsts & mask) == mask) { 183f1ae32a1SGerd Hoffmann return; 184f1ae32a1SGerd Hoffmann } 185f1ae32a1SGerd Hoffmann ehci_trace_usbsts(mask, 1); 186f1ae32a1SGerd Hoffmann s->usbsts |= mask; 187f1ae32a1SGerd Hoffmann } 188f1ae32a1SGerd Hoffmann 189f1ae32a1SGerd Hoffmann static inline void ehci_clear_usbsts(EHCIState *s, int mask) 190f1ae32a1SGerd Hoffmann { 191f1ae32a1SGerd Hoffmann if ((s->usbsts & mask) == 0) { 192f1ae32a1SGerd Hoffmann return; 193f1ae32a1SGerd Hoffmann } 194f1ae32a1SGerd Hoffmann ehci_trace_usbsts(mask, 0); 195f1ae32a1SGerd Hoffmann s->usbsts &= ~mask; 196f1ae32a1SGerd Hoffmann } 197f1ae32a1SGerd Hoffmann 1987efc17afSGerd Hoffmann /* update irq line */ 1997efc17afSGerd Hoffmann static inline void ehci_update_irq(EHCIState *s) 200f1ae32a1SGerd Hoffmann { 201f1ae32a1SGerd Hoffmann int level = 0; 202f1ae32a1SGerd Hoffmann 203f1ae32a1SGerd Hoffmann if ((s->usbsts & USBINTR_MASK) & s->usbintr) { 204f1ae32a1SGerd Hoffmann level = 1; 205f1ae32a1SGerd Hoffmann } 206f1ae32a1SGerd Hoffmann 2077efc17afSGerd Hoffmann trace_usb_ehci_irq(level, s->frindex, s->usbsts, s->usbintr); 208f1ae32a1SGerd Hoffmann qemu_set_irq(s->irq, level); 209f1ae32a1SGerd Hoffmann } 210f1ae32a1SGerd Hoffmann 2117efc17afSGerd Hoffmann /* flag interrupt condition */ 2127efc17afSGerd Hoffmann static inline void ehci_raise_irq(EHCIState *s, int intr) 213f1ae32a1SGerd Hoffmann { 2146d3b6d3dSGerd Hoffmann if (intr & (USBSTS_PCD | USBSTS_FLR | USBSTS_HSE)) { 2156d3b6d3dSGerd Hoffmann s->usbsts |= intr; 2166d3b6d3dSGerd Hoffmann ehci_update_irq(s); 2176d3b6d3dSGerd Hoffmann } else { 218f1ae32a1SGerd Hoffmann s->usbsts_pending |= intr; 219f1ae32a1SGerd Hoffmann } 2206d3b6d3dSGerd Hoffmann } 221f1ae32a1SGerd Hoffmann 2227efc17afSGerd Hoffmann /* 2237efc17afSGerd Hoffmann * Commit pending interrupts (added via ehci_raise_irq), 2247efc17afSGerd Hoffmann * at the rate allowed by "Interrupt Threshold Control". 2257efc17afSGerd Hoffmann */ 2267efc17afSGerd Hoffmann static inline void ehci_commit_irq(EHCIState *s) 227f1ae32a1SGerd Hoffmann { 2287efc17afSGerd Hoffmann uint32_t itc; 2297efc17afSGerd Hoffmann 230f1ae32a1SGerd Hoffmann if (!s->usbsts_pending) { 231f1ae32a1SGerd Hoffmann return; 232f1ae32a1SGerd Hoffmann } 2337efc17afSGerd Hoffmann if (s->usbsts_frindex > s->frindex) { 2347efc17afSGerd Hoffmann return; 2357efc17afSGerd Hoffmann } 2367efc17afSGerd Hoffmann 2377efc17afSGerd Hoffmann itc = (s->usbcmd >> 16) & 0xff; 2387efc17afSGerd Hoffmann s->usbsts |= s->usbsts_pending; 239f1ae32a1SGerd Hoffmann s->usbsts_pending = 0; 2407efc17afSGerd Hoffmann s->usbsts_frindex = s->frindex + itc; 2417efc17afSGerd Hoffmann ehci_update_irq(s); 242f1ae32a1SGerd Hoffmann } 243f1ae32a1SGerd Hoffmann 244daf25307SGerd Hoffmann static void ehci_update_halt(EHCIState *s) 245daf25307SGerd Hoffmann { 246daf25307SGerd Hoffmann if (s->usbcmd & USBCMD_RUNSTOP) { 247daf25307SGerd Hoffmann ehci_clear_usbsts(s, USBSTS_HALT); 248daf25307SGerd Hoffmann } else { 249daf25307SGerd Hoffmann if (s->astate == EST_INACTIVE && s->pstate == EST_INACTIVE) { 250daf25307SGerd Hoffmann ehci_set_usbsts(s, USBSTS_HALT); 251daf25307SGerd Hoffmann } 252daf25307SGerd Hoffmann } 253daf25307SGerd Hoffmann } 254daf25307SGerd Hoffmann 255f1ae32a1SGerd Hoffmann static void ehci_set_state(EHCIState *s, int async, int state) 256f1ae32a1SGerd Hoffmann { 257f1ae32a1SGerd Hoffmann if (async) { 258f1ae32a1SGerd Hoffmann trace_usb_ehci_state("async", state2str(state)); 259f1ae32a1SGerd Hoffmann s->astate = state; 260b53f685dSGerd Hoffmann if (s->astate == EST_INACTIVE) { 261b53f685dSGerd Hoffmann ehci_clear_usbsts(s, USBSTS_ASS); 262daf25307SGerd Hoffmann ehci_update_halt(s); 263b53f685dSGerd Hoffmann } else { 264b53f685dSGerd Hoffmann ehci_set_usbsts(s, USBSTS_ASS); 265b53f685dSGerd Hoffmann } 266f1ae32a1SGerd Hoffmann } else { 267f1ae32a1SGerd Hoffmann trace_usb_ehci_state("periodic", state2str(state)); 268f1ae32a1SGerd Hoffmann s->pstate = state; 269b53f685dSGerd Hoffmann if (s->pstate == EST_INACTIVE) { 270b53f685dSGerd Hoffmann ehci_clear_usbsts(s, USBSTS_PSS); 271daf25307SGerd Hoffmann ehci_update_halt(s); 272b53f685dSGerd Hoffmann } else { 273b53f685dSGerd Hoffmann ehci_set_usbsts(s, USBSTS_PSS); 274b53f685dSGerd Hoffmann } 275f1ae32a1SGerd Hoffmann } 276f1ae32a1SGerd Hoffmann } 277f1ae32a1SGerd Hoffmann 278f1ae32a1SGerd Hoffmann static int ehci_get_state(EHCIState *s, int async) 279f1ae32a1SGerd Hoffmann { 280f1ae32a1SGerd Hoffmann return async ? s->astate : s->pstate; 281f1ae32a1SGerd Hoffmann } 282f1ae32a1SGerd Hoffmann 283f1ae32a1SGerd Hoffmann static void ehci_set_fetch_addr(EHCIState *s, int async, uint32_t addr) 284f1ae32a1SGerd Hoffmann { 285f1ae32a1SGerd Hoffmann if (async) { 286f1ae32a1SGerd Hoffmann s->a_fetch_addr = addr; 287f1ae32a1SGerd Hoffmann } else { 288f1ae32a1SGerd Hoffmann s->p_fetch_addr = addr; 289f1ae32a1SGerd Hoffmann } 290f1ae32a1SGerd Hoffmann } 291f1ae32a1SGerd Hoffmann 292f1ae32a1SGerd Hoffmann static int ehci_get_fetch_addr(EHCIState *s, int async) 293f1ae32a1SGerd Hoffmann { 294f1ae32a1SGerd Hoffmann return async ? s->a_fetch_addr : s->p_fetch_addr; 295f1ae32a1SGerd Hoffmann } 296f1ae32a1SGerd Hoffmann 297a8170e5eSAvi Kivity static void ehci_trace_qh(EHCIQueue *q, hwaddr addr, EHCIqh *qh) 298f1ae32a1SGerd Hoffmann { 299f1ae32a1SGerd Hoffmann /* need three here due to argument count limits */ 300f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_ptrs(q, addr, qh->next, 301f1ae32a1SGerd Hoffmann qh->current_qtd, qh->next_qtd, qh->altnext_qtd); 302f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_fields(addr, 303f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_RL), 304f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_MPLEN), 305f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_EPS), 306f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_EP), 307f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_DEVADDR)); 308f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_bits(addr, 309f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_C), 310f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_H), 311f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_DTC), 312f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_I)); 313f1ae32a1SGerd Hoffmann } 314f1ae32a1SGerd Hoffmann 315a8170e5eSAvi Kivity static void ehci_trace_qtd(EHCIQueue *q, hwaddr addr, EHCIqtd *qtd) 316f1ae32a1SGerd Hoffmann { 317f1ae32a1SGerd Hoffmann /* need three here due to argument count limits */ 318f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_ptrs(q, addr, qtd->next, qtd->altnext); 319f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_fields(addr, 320f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_TBYTES), 321f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_CPAGE), 322f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_CERR), 323f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_PID)); 324f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_bits(addr, 325f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_IOC), 326f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_ACTIVE), 327f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_HALT), 328f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_BABBLE), 329f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_XACTERR)); 330f1ae32a1SGerd Hoffmann } 331f1ae32a1SGerd Hoffmann 332a8170e5eSAvi Kivity static void ehci_trace_itd(EHCIState *s, hwaddr addr, EHCIitd *itd) 333f1ae32a1SGerd Hoffmann { 334f1ae32a1SGerd Hoffmann trace_usb_ehci_itd(addr, itd->next, 335f1ae32a1SGerd Hoffmann get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT), 336f1ae32a1SGerd Hoffmann get_field(itd->bufptr[2], ITD_BUFPTR_MULT), 337f1ae32a1SGerd Hoffmann get_field(itd->bufptr[0], ITD_BUFPTR_EP), 338f1ae32a1SGerd Hoffmann get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR)); 339f1ae32a1SGerd Hoffmann } 340f1ae32a1SGerd Hoffmann 341a8170e5eSAvi Kivity static void ehci_trace_sitd(EHCIState *s, hwaddr addr, 342f1ae32a1SGerd Hoffmann EHCIsitd *sitd) 343f1ae32a1SGerd Hoffmann { 344f1ae32a1SGerd Hoffmann trace_usb_ehci_sitd(addr, sitd->next, 345f1ae32a1SGerd Hoffmann (bool)(sitd->results & SITD_RESULTS_ACTIVE)); 346f1ae32a1SGerd Hoffmann } 347f1ae32a1SGerd Hoffmann 3485c514681SGerd Hoffmann static void ehci_trace_guest_bug(EHCIState *s, const char *message) 3495c514681SGerd Hoffmann { 3505c514681SGerd Hoffmann trace_usb_ehci_guest_bug(message); 3515c514681SGerd Hoffmann fprintf(stderr, "ehci warning: %s\n", message); 3525c514681SGerd Hoffmann } 3535c514681SGerd Hoffmann 354ec807d12SGerd Hoffmann static inline bool ehci_enabled(EHCIState *s) 355ec807d12SGerd Hoffmann { 356ec807d12SGerd Hoffmann return s->usbcmd & USBCMD_RUNSTOP; 357ec807d12SGerd Hoffmann } 358ec807d12SGerd Hoffmann 359ec807d12SGerd Hoffmann static inline bool ehci_async_enabled(EHCIState *s) 360ec807d12SGerd Hoffmann { 361ec807d12SGerd Hoffmann return ehci_enabled(s) && (s->usbcmd & USBCMD_ASE); 362ec807d12SGerd Hoffmann } 363ec807d12SGerd Hoffmann 364ec807d12SGerd Hoffmann static inline bool ehci_periodic_enabled(EHCIState *s) 365ec807d12SGerd Hoffmann { 366ec807d12SGerd Hoffmann return ehci_enabled(s) && (s->usbcmd & USBCMD_PSE); 367ec807d12SGerd Hoffmann } 368ec807d12SGerd Hoffmann 369190d8492SHans de Goede /* Get an array of dwords from main memory */ 370190d8492SHans de Goede static inline int get_dwords(EHCIState *ehci, uint32_t addr, 371190d8492SHans de Goede uint32_t *buf, int num) 372190d8492SHans de Goede { 373190d8492SHans de Goede int i; 374190d8492SHans de Goede 375df32fd1cSPaolo Bonzini if (!ehci->as) { 376190d8492SHans de Goede ehci_raise_irq(ehci, USBSTS_HSE); 377190d8492SHans de Goede ehci->usbcmd &= ~USBCMD_RUNSTOP; 378190d8492SHans de Goede trace_usb_ehci_dma_error(); 379190d8492SHans de Goede return -1; 380190d8492SHans de Goede } 381190d8492SHans de Goede 382190d8492SHans de Goede for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 383df32fd1cSPaolo Bonzini dma_memory_read(ehci->as, addr, buf, sizeof(*buf)); 384190d8492SHans de Goede *buf = le32_to_cpu(*buf); 385190d8492SHans de Goede } 386190d8492SHans de Goede 387190d8492SHans de Goede return num; 388190d8492SHans de Goede } 389190d8492SHans de Goede 390190d8492SHans de Goede /* Put an array of dwords in to main memory */ 391190d8492SHans de Goede static inline int put_dwords(EHCIState *ehci, uint32_t addr, 392190d8492SHans de Goede uint32_t *buf, int num) 393190d8492SHans de Goede { 394190d8492SHans de Goede int i; 395190d8492SHans de Goede 396df32fd1cSPaolo Bonzini if (!ehci->as) { 397190d8492SHans de Goede ehci_raise_irq(ehci, USBSTS_HSE); 398190d8492SHans de Goede ehci->usbcmd &= ~USBCMD_RUNSTOP; 399190d8492SHans de Goede trace_usb_ehci_dma_error(); 400190d8492SHans de Goede return -1; 401190d8492SHans de Goede } 402190d8492SHans de Goede 403190d8492SHans de Goede for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 404190d8492SHans de Goede uint32_t tmp = cpu_to_le32(*buf); 405df32fd1cSPaolo Bonzini dma_memory_write(ehci->as, addr, &tmp, sizeof(tmp)); 406190d8492SHans de Goede } 407190d8492SHans de Goede 408190d8492SHans de Goede return num; 409190d8492SHans de Goede } 410190d8492SHans de Goede 41151e0c5d0SHans de Goede static int ehci_get_pid(EHCIqtd *qtd) 41251e0c5d0SHans de Goede { 41351e0c5d0SHans de Goede switch (get_field(qtd->token, QTD_TOKEN_PID)) { 41451e0c5d0SHans de Goede case 0: 41551e0c5d0SHans de Goede return USB_TOKEN_OUT; 41651e0c5d0SHans de Goede case 1: 41751e0c5d0SHans de Goede return USB_TOKEN_IN; 41851e0c5d0SHans de Goede case 2: 41951e0c5d0SHans de Goede return USB_TOKEN_SETUP; 42051e0c5d0SHans de Goede default: 42151e0c5d0SHans de Goede fprintf(stderr, "bad token\n"); 42251e0c5d0SHans de Goede return 0; 42351e0c5d0SHans de Goede } 42451e0c5d0SHans de Goede } 42551e0c5d0SHans de Goede 426c6432634SHans de Goede static bool ehci_verify_qh(EHCIQueue *q, EHCIqh *qh) 427c6432634SHans de Goede { 428c6432634SHans de Goede uint32_t devaddr = get_field(qh->epchar, QH_EPCHAR_DEVADDR); 429c6432634SHans de Goede uint32_t endp = get_field(qh->epchar, QH_EPCHAR_EP); 430c6432634SHans de Goede if ((devaddr != get_field(q->qh.epchar, QH_EPCHAR_DEVADDR)) || 431c6432634SHans de Goede (endp != get_field(q->qh.epchar, QH_EPCHAR_EP)) || 432c6432634SHans de Goede (qh->current_qtd != q->qh.current_qtd) || 433c6432634SHans de Goede (q->async && qh->next_qtd != q->qh.next_qtd) || 434c6432634SHans de Goede (memcmp(&qh->altnext_qtd, &q->qh.altnext_qtd, 435c6432634SHans de Goede 7 * sizeof(uint32_t)) != 0) || 436c6432634SHans de Goede (q->dev != NULL && q->dev->addr != devaddr)) { 437c6432634SHans de Goede return false; 438c6432634SHans de Goede } else { 439c6432634SHans de Goede return true; 440c6432634SHans de Goede } 441c6432634SHans de Goede } 442c6432634SHans de Goede 443c6432634SHans de Goede static bool ehci_verify_qtd(EHCIPacket *p, EHCIqtd *qtd) 444c6432634SHans de Goede { 445c6432634SHans de Goede if (p->qtdaddr != p->queue->qtdaddr || 446c6432634SHans de Goede (p->queue->async && !NLPTR_TBIT(p->qtd.next) && 447c6432634SHans de Goede (p->qtd.next != qtd->next)) || 448c6432634SHans de Goede (!NLPTR_TBIT(p->qtd.altnext) && (p->qtd.altnext != qtd->altnext)) || 449d066c57bSHans de Goede p->qtd.token != qtd->token || 450c6432634SHans de Goede p->qtd.bufptr[0] != qtd->bufptr[0]) { 451c6432634SHans de Goede return false; 452c6432634SHans de Goede } else { 453c6432634SHans de Goede return true; 454c6432634SHans de Goede } 455c6432634SHans de Goede } 456c6432634SHans de Goede 457bbbc39ccSHans de Goede static bool ehci_verify_pid(EHCIQueue *q, EHCIqtd *qtd) 458bbbc39ccSHans de Goede { 459bbbc39ccSHans de Goede int ep = get_field(q->qh.epchar, QH_EPCHAR_EP); 460bbbc39ccSHans de Goede int pid = ehci_get_pid(qtd); 461bbbc39ccSHans de Goede 462bbbc39ccSHans de Goede /* Note the pid changing is normal for ep 0 (the control ep) */ 463bbbc39ccSHans de Goede if (q->last_pid && ep != 0 && pid != q->last_pid) { 464bbbc39ccSHans de Goede return false; 465bbbc39ccSHans de Goede } else { 466bbbc39ccSHans de Goede return true; 467bbbc39ccSHans de Goede } 468bbbc39ccSHans de Goede } 469bbbc39ccSHans de Goede 470f881c8d3SHans de Goede /* Finish executing and writeback a packet outside of the regular 471f881c8d3SHans de Goede fetchqh -> fetchqtd -> execute -> writeback cycle */ 472f881c8d3SHans de Goede static void ehci_writeback_async_complete_packet(EHCIPacket *p) 473f881c8d3SHans de Goede { 474f881c8d3SHans de Goede EHCIQueue *q = p->queue; 4752b3de6adSHans de Goede EHCIqtd qtd; 4762b3de6adSHans de Goede EHCIqh qh; 477f881c8d3SHans de Goede int state; 478f881c8d3SHans de Goede 4792b3de6adSHans de Goede /* Verify the qh + qtd, like we do when going through fetchqh & fetchqtd */ 4802b3de6adSHans de Goede get_dwords(q->ehci, NLPTR_GET(q->qhaddr), 4812b3de6adSHans de Goede (uint32_t *) &qh, sizeof(EHCIqh) >> 2); 4822b3de6adSHans de Goede get_dwords(q->ehci, NLPTR_GET(q->qtdaddr), 4832b3de6adSHans de Goede (uint32_t *) &qtd, sizeof(EHCIqtd) >> 2); 4842b3de6adSHans de Goede if (!ehci_verify_qh(q, &qh) || !ehci_verify_qtd(p, &qtd)) { 4852b3de6adSHans de Goede p->async = EHCI_ASYNC_INITIALIZED; 4862b3de6adSHans de Goede ehci_free_packet(p); 4872b3de6adSHans de Goede return; 4882b3de6adSHans de Goede } 4892b3de6adSHans de Goede 490f881c8d3SHans de Goede state = ehci_get_state(q->ehci, q->async); 491f881c8d3SHans de Goede ehci_state_executing(q); 492f881c8d3SHans de Goede ehci_state_writeback(q); /* Frees the packet! */ 493f881c8d3SHans de Goede if (!(q->qh.token & QTD_TOKEN_HALT)) { 494f881c8d3SHans de Goede ehci_state_advqueue(q); 495f881c8d3SHans de Goede } 496f881c8d3SHans de Goede ehci_set_state(q->ehci, q->async, state); 497f881c8d3SHans de Goede } 498f881c8d3SHans de Goede 499eb36a88eSGerd Hoffmann /* packet management */ 500eb36a88eSGerd Hoffmann 501eb36a88eSGerd Hoffmann static EHCIPacket *ehci_alloc_packet(EHCIQueue *q) 502eb36a88eSGerd Hoffmann { 503eb36a88eSGerd Hoffmann EHCIPacket *p; 504eb36a88eSGerd Hoffmann 505eb36a88eSGerd Hoffmann p = g_new0(EHCIPacket, 1); 506eb36a88eSGerd Hoffmann p->queue = q; 507eb36a88eSGerd Hoffmann usb_packet_init(&p->packet); 508eb36a88eSGerd Hoffmann QTAILQ_INSERT_TAIL(&q->packets, p, next); 509eb36a88eSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "alloc"); 510eb36a88eSGerd Hoffmann return p; 511eb36a88eSGerd Hoffmann } 512eb36a88eSGerd Hoffmann 513eb36a88eSGerd Hoffmann static void ehci_free_packet(EHCIPacket *p) 514eb36a88eSGerd Hoffmann { 515e449f26bSHans de Goede if (p->async == EHCI_ASYNC_FINISHED && 516e449f26bSHans de Goede !(p->queue->qh.token & QTD_TOKEN_HALT)) { 517f881c8d3SHans de Goede ehci_writeback_async_complete_packet(p); 5184b63a0dfSHans de Goede return; 5194b63a0dfSHans de Goede } 520616789cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "free"); 521616789cdSGerd Hoffmann if (p->async == EHCI_ASYNC_INFLIGHT) { 522616789cdSGerd Hoffmann usb_cancel_packet(&p->packet); 523e449f26bSHans de Goede } 524e449f26bSHans de Goede if (p->async == EHCI_ASYNC_FINISHED && 525e449f26bSHans de Goede p->packet.status == USB_RET_SUCCESS) { 526e449f26bSHans de Goede fprintf(stderr, 527e449f26bSHans de Goede "EHCI: Dropping completed packet from halted %s ep %02X\n", 528e449f26bSHans de Goede (p->pid == USB_TOKEN_IN) ? "in" : "out", 529e449f26bSHans de Goede get_field(p->queue->qh.epchar, QH_EPCHAR_EP)); 530e449f26bSHans de Goede } 531e449f26bSHans de Goede if (p->async != EHCI_ASYNC_NONE) { 532616789cdSGerd Hoffmann usb_packet_unmap(&p->packet, &p->sgl); 533616789cdSGerd Hoffmann qemu_sglist_destroy(&p->sgl); 534616789cdSGerd Hoffmann } 535eb36a88eSGerd Hoffmann QTAILQ_REMOVE(&p->queue->packets, p, next); 536eb36a88eSGerd Hoffmann usb_packet_cleanup(&p->packet); 537eb36a88eSGerd Hoffmann g_free(p); 538eb36a88eSGerd Hoffmann } 539eb36a88eSGerd Hoffmann 540f1ae32a1SGerd Hoffmann /* queue management */ 541f1ae32a1SGerd Hoffmann 5428f6d5e26SGerd Hoffmann static EHCIQueue *ehci_alloc_queue(EHCIState *ehci, uint32_t addr, int async) 543f1ae32a1SGerd Hoffmann { 544f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 545f1ae32a1SGerd Hoffmann EHCIQueue *q; 546f1ae32a1SGerd Hoffmann 547f1ae32a1SGerd Hoffmann q = g_malloc0(sizeof(*q)); 548f1ae32a1SGerd Hoffmann q->ehci = ehci; 5498f6d5e26SGerd Hoffmann q->qhaddr = addr; 550ae0138a8SGerd Hoffmann q->async = async; 551eb36a88eSGerd Hoffmann QTAILQ_INIT(&q->packets); 552f1ae32a1SGerd Hoffmann QTAILQ_INSERT_HEAD(head, q, next); 553f1ae32a1SGerd Hoffmann trace_usb_ehci_queue_action(q, "alloc"); 554f1ae32a1SGerd Hoffmann return q; 555f1ae32a1SGerd Hoffmann } 556f1ae32a1SGerd Hoffmann 557f79738b0SHans de Goede static void ehci_queue_stopped(EHCIQueue *q) 558f79738b0SHans de Goede { 559f79738b0SHans de Goede int endp = get_field(q->qh.epchar, QH_EPCHAR_EP); 560f79738b0SHans de Goede 561f79738b0SHans de Goede if (!q->last_pid || !q->dev) { 562f79738b0SHans de Goede return; 563f79738b0SHans de Goede } 564f79738b0SHans de Goede 565f79738b0SHans de Goede usb_device_ep_stopped(q->dev, usb_ep_get(q->dev, q->last_pid, endp)); 566f79738b0SHans de Goede } 567f79738b0SHans de Goede 5685c514681SGerd Hoffmann static int ehci_cancel_queue(EHCIQueue *q) 569c7cdca3bSGerd Hoffmann { 570c7cdca3bSGerd Hoffmann EHCIPacket *p; 5715c514681SGerd Hoffmann int packets = 0; 572c7cdca3bSGerd Hoffmann 573c7cdca3bSGerd Hoffmann p = QTAILQ_FIRST(&q->packets); 574c7cdca3bSGerd Hoffmann if (p == NULL) { 575f79738b0SHans de Goede goto leave; 576c7cdca3bSGerd Hoffmann } 577c7cdca3bSGerd Hoffmann 578c7cdca3bSGerd Hoffmann trace_usb_ehci_queue_action(q, "cancel"); 579c7cdca3bSGerd Hoffmann do { 580c7cdca3bSGerd Hoffmann ehci_free_packet(p); 5815c514681SGerd Hoffmann packets++; 582c7cdca3bSGerd Hoffmann } while ((p = QTAILQ_FIRST(&q->packets)) != NULL); 583f79738b0SHans de Goede 584f79738b0SHans de Goede leave: 585f79738b0SHans de Goede ehci_queue_stopped(q); 5865c514681SGerd Hoffmann return packets; 587c7cdca3bSGerd Hoffmann } 588c7cdca3bSGerd Hoffmann 5895c514681SGerd Hoffmann static int ehci_reset_queue(EHCIQueue *q) 590dafe31fcSHans de Goede { 5915c514681SGerd Hoffmann int packets; 5925c514681SGerd Hoffmann 593dafe31fcSHans de Goede trace_usb_ehci_queue_action(q, "reset"); 5945c514681SGerd Hoffmann packets = ehci_cancel_queue(q); 595dafe31fcSHans de Goede q->dev = NULL; 596dafe31fcSHans de Goede q->qtdaddr = 0; 597bbbc39ccSHans de Goede q->last_pid = 0; 5985c514681SGerd Hoffmann return packets; 599dafe31fcSHans de Goede } 600dafe31fcSHans de Goede 6013a8ca08eSHans de Goede static void ehci_free_queue(EHCIQueue *q, const char *warn) 602f1ae32a1SGerd Hoffmann { 603ae0138a8SGerd Hoffmann EHCIQueueHead *head = q->async ? &q->ehci->aqueues : &q->ehci->pqueues; 6043a8ca08eSHans de Goede int cancelled; 605eb36a88eSGerd Hoffmann 606f1ae32a1SGerd Hoffmann trace_usb_ehci_queue_action(q, "free"); 6073a8ca08eSHans de Goede cancelled = ehci_cancel_queue(q); 6083a8ca08eSHans de Goede if (warn && cancelled > 0) { 6093a8ca08eSHans de Goede ehci_trace_guest_bug(q->ehci, warn); 6103a8ca08eSHans de Goede } 611f1ae32a1SGerd Hoffmann QTAILQ_REMOVE(head, q, next); 612f1ae32a1SGerd Hoffmann g_free(q); 613f1ae32a1SGerd Hoffmann } 614f1ae32a1SGerd Hoffmann 615f1ae32a1SGerd Hoffmann static EHCIQueue *ehci_find_queue_by_qh(EHCIState *ehci, uint32_t addr, 616f1ae32a1SGerd Hoffmann int async) 617f1ae32a1SGerd Hoffmann { 618f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 619f1ae32a1SGerd Hoffmann EHCIQueue *q; 620f1ae32a1SGerd Hoffmann 621f1ae32a1SGerd Hoffmann QTAILQ_FOREACH(q, head, next) { 622f1ae32a1SGerd Hoffmann if (addr == q->qhaddr) { 623f1ae32a1SGerd Hoffmann return q; 624f1ae32a1SGerd Hoffmann } 625f1ae32a1SGerd Hoffmann } 626f1ae32a1SGerd Hoffmann return NULL; 627f1ae32a1SGerd Hoffmann } 628f1ae32a1SGerd Hoffmann 6298f5457ebSHans de Goede static void ehci_queues_rip_unused(EHCIState *ehci, int async) 630f1ae32a1SGerd Hoffmann { 631f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 6328f5457ebSHans de Goede const char *warn = async ? "guest unlinked busy QH" : NULL; 6333a215326SGerd Hoffmann uint64_t maxage = FRAME_TIMER_NS * ehci->maxframes * 4; 634f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 635f1ae32a1SGerd Hoffmann 636f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 637f1ae32a1SGerd Hoffmann if (q->seen) { 638f1ae32a1SGerd Hoffmann q->seen = 0; 639f1ae32a1SGerd Hoffmann q->ts = ehci->last_run_ns; 640f1ae32a1SGerd Hoffmann continue; 641f1ae32a1SGerd Hoffmann } 6428f5457ebSHans de Goede if (ehci->last_run_ns < q->ts + maxage) { 643f1ae32a1SGerd Hoffmann continue; 644f1ae32a1SGerd Hoffmann } 6453a8ca08eSHans de Goede ehci_free_queue(q, warn); 646f1ae32a1SGerd Hoffmann } 647f1ae32a1SGerd Hoffmann } 648f1ae32a1SGerd Hoffmann 6498f5457ebSHans de Goede static void ehci_queues_rip_unseen(EHCIState *ehci, int async) 6508f5457ebSHans de Goede { 6518f5457ebSHans de Goede EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 6528f5457ebSHans de Goede EHCIQueue *q, *tmp; 6538f5457ebSHans de Goede 6548f5457ebSHans de Goede QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 6558f5457ebSHans de Goede if (!q->seen) { 6568f5457ebSHans de Goede ehci_free_queue(q, NULL); 6578f5457ebSHans de Goede } 6588f5457ebSHans de Goede } 6598f5457ebSHans de Goede } 6608f5457ebSHans de Goede 661f1ae32a1SGerd Hoffmann static void ehci_queues_rip_device(EHCIState *ehci, USBDevice *dev, int async) 662f1ae32a1SGerd Hoffmann { 663f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 664f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 665f1ae32a1SGerd Hoffmann 666f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 667e59928b3SGerd Hoffmann if (q->dev != dev) { 668f1ae32a1SGerd Hoffmann continue; 669f1ae32a1SGerd Hoffmann } 6703a8ca08eSHans de Goede ehci_free_queue(q, NULL); 671f1ae32a1SGerd Hoffmann } 672f1ae32a1SGerd Hoffmann } 673f1ae32a1SGerd Hoffmann 674f1ae32a1SGerd Hoffmann static void ehci_queues_rip_all(EHCIState *ehci, int async) 675f1ae32a1SGerd Hoffmann { 676f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 6773a8ca08eSHans de Goede const char *warn = async ? "guest stopped busy async schedule" : NULL; 678f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 679f1ae32a1SGerd Hoffmann 680f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 6813a8ca08eSHans de Goede ehci_free_queue(q, warn); 682f1ae32a1SGerd Hoffmann } 683f1ae32a1SGerd Hoffmann } 684f1ae32a1SGerd Hoffmann 685f1ae32a1SGerd Hoffmann /* Attach or detach a device on root hub */ 686f1ae32a1SGerd Hoffmann 687f1ae32a1SGerd Hoffmann static void ehci_attach(USBPort *port) 688f1ae32a1SGerd Hoffmann { 689f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 690f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port->index]; 69130e9d412SGerd Hoffmann const char *owner = (*portsc & PORTSC_POWNER) ? "comp" : "ehci"; 692f1ae32a1SGerd Hoffmann 69330e9d412SGerd Hoffmann trace_usb_ehci_port_attach(port->index, owner, port->dev->product_desc); 694f1ae32a1SGerd Hoffmann 695f1ae32a1SGerd Hoffmann if (*portsc & PORTSC_POWNER) { 696f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 697f1ae32a1SGerd Hoffmann companion->dev = port->dev; 698f1ae32a1SGerd Hoffmann companion->ops->attach(companion); 699f1ae32a1SGerd Hoffmann return; 700f1ae32a1SGerd Hoffmann } 701f1ae32a1SGerd Hoffmann 702f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CONNECT; 703f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CSC; 704f1ae32a1SGerd Hoffmann 7057efc17afSGerd Hoffmann ehci_raise_irq(s, USBSTS_PCD); 706f1ae32a1SGerd Hoffmann } 707f1ae32a1SGerd Hoffmann 708f1ae32a1SGerd Hoffmann static void ehci_detach(USBPort *port) 709f1ae32a1SGerd Hoffmann { 710f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 711f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port->index]; 71230e9d412SGerd Hoffmann const char *owner = (*portsc & PORTSC_POWNER) ? "comp" : "ehci"; 713f1ae32a1SGerd Hoffmann 71430e9d412SGerd Hoffmann trace_usb_ehci_port_detach(port->index, owner); 715f1ae32a1SGerd Hoffmann 716f1ae32a1SGerd Hoffmann if (*portsc & PORTSC_POWNER) { 717f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 718f1ae32a1SGerd Hoffmann companion->ops->detach(companion); 719f1ae32a1SGerd Hoffmann companion->dev = NULL; 720f1ae32a1SGerd Hoffmann /* 721f1ae32a1SGerd Hoffmann * EHCI spec 4.2.2: "When a disconnect occurs... On the event, 722f1ae32a1SGerd Hoffmann * the port ownership is returned immediately to the EHCI controller." 723f1ae32a1SGerd Hoffmann */ 724f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_POWNER; 725f1ae32a1SGerd Hoffmann return; 726f1ae32a1SGerd Hoffmann } 727f1ae32a1SGerd Hoffmann 728f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, port->dev, 0); 729f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, port->dev, 1); 730f1ae32a1SGerd Hoffmann 731cbf82fa0SGerd Hoffmann *portsc &= ~(PORTSC_CONNECT|PORTSC_PED|PORTSC_SUSPEND); 732f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CSC; 733f1ae32a1SGerd Hoffmann 7347efc17afSGerd Hoffmann ehci_raise_irq(s, USBSTS_PCD); 735f1ae32a1SGerd Hoffmann } 736f1ae32a1SGerd Hoffmann 737f1ae32a1SGerd Hoffmann static void ehci_child_detach(USBPort *port, USBDevice *child) 738f1ae32a1SGerd Hoffmann { 739f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 740f1ae32a1SGerd Hoffmann uint32_t portsc = s->portsc[port->index]; 741f1ae32a1SGerd Hoffmann 742f1ae32a1SGerd Hoffmann if (portsc & PORTSC_POWNER) { 743f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 744f1ae32a1SGerd Hoffmann companion->ops->child_detach(companion, child); 745f1ae32a1SGerd Hoffmann return; 746f1ae32a1SGerd Hoffmann } 747f1ae32a1SGerd Hoffmann 748f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, child, 0); 749f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, child, 1); 750f1ae32a1SGerd Hoffmann } 751f1ae32a1SGerd Hoffmann 752f1ae32a1SGerd Hoffmann static void ehci_wakeup(USBPort *port) 753f1ae32a1SGerd Hoffmann { 754f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 755e489df40SGerd Hoffmann uint32_t *portsc = &s->portsc[port->index]; 756f1ae32a1SGerd Hoffmann 757e489df40SGerd Hoffmann if (*portsc & PORTSC_POWNER) { 758f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 759f1ae32a1SGerd Hoffmann if (companion->ops->wakeup) { 760f1ae32a1SGerd Hoffmann companion->ops->wakeup(companion); 76137952117SHans de Goede } 76237952117SHans de Goede return; 76337952117SHans de Goede } 76437952117SHans de Goede 765e489df40SGerd Hoffmann if (*portsc & PORTSC_SUSPEND) { 766e489df40SGerd Hoffmann trace_usb_ehci_port_wakeup(port->index); 767e489df40SGerd Hoffmann *portsc |= PORTSC_FPRES; 768e489df40SGerd Hoffmann ehci_raise_irq(s, USBSTS_PCD); 769e489df40SGerd Hoffmann } 770e489df40SGerd Hoffmann 7710f588df8SGerd Hoffmann qemu_bh_schedule(s->async_bh); 772f1ae32a1SGerd Hoffmann } 773f1ae32a1SGerd Hoffmann 774f4bbaaf5SMarkus Armbruster static void ehci_register_companion(USBBus *bus, USBPort *ports[], 775f4bbaaf5SMarkus Armbruster uint32_t portcount, uint32_t firstport, 776f4bbaaf5SMarkus Armbruster Error **errp) 777f1ae32a1SGerd Hoffmann { 778f1ae32a1SGerd Hoffmann EHCIState *s = container_of(bus, EHCIState, bus); 779f1ae32a1SGerd Hoffmann uint32_t i; 780f1ae32a1SGerd Hoffmann 781f1ae32a1SGerd Hoffmann if (firstport + portcount > NB_PORTS) { 7822e269f3dSMarkus Armbruster error_setg(errp, "firstport must be between 0 and %u", 7832e269f3dSMarkus Armbruster NB_PORTS - portcount); 784f4bbaaf5SMarkus Armbruster return; 785f1ae32a1SGerd Hoffmann } 786f1ae32a1SGerd Hoffmann 787f1ae32a1SGerd Hoffmann for (i = 0; i < portcount; i++) { 788f1ae32a1SGerd Hoffmann if (s->companion_ports[firstport + i]) { 7892e269f3dSMarkus Armbruster error_setg(errp, "firstport %u asks for ports %u-%u," 7902e269f3dSMarkus Armbruster " but port %u has a companion assigned already", 7912e269f3dSMarkus Armbruster firstport, firstport, firstport + portcount - 1, 7922e269f3dSMarkus Armbruster firstport + i); 793f4bbaaf5SMarkus Armbruster return; 794f1ae32a1SGerd Hoffmann } 795f1ae32a1SGerd Hoffmann } 796f1ae32a1SGerd Hoffmann 797f1ae32a1SGerd Hoffmann for (i = 0; i < portcount; i++) { 798f1ae32a1SGerd Hoffmann s->companion_ports[firstport + i] = ports[i]; 799f1ae32a1SGerd Hoffmann s->ports[firstport + i].speedmask |= 800f1ae32a1SGerd Hoffmann USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL; 801f1ae32a1SGerd Hoffmann /* Ensure devs attached before the initial reset go to the companion */ 802f1ae32a1SGerd Hoffmann s->portsc[firstport + i] = PORTSC_POWNER; 803f1ae32a1SGerd Hoffmann } 804f1ae32a1SGerd Hoffmann 805f1ae32a1SGerd Hoffmann s->companion_count++; 8063e4f910cSGerd Hoffmann s->caps[0x05] = (s->companion_count << 4) | portcount; 807f1ae32a1SGerd Hoffmann } 808f1ae32a1SGerd Hoffmann 8098550a02dSGerd Hoffmann static void ehci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep, 8108550a02dSGerd Hoffmann unsigned int stream) 81180826240SHans de Goede { 81280826240SHans de Goede EHCIState *s = container_of(bus, EHCIState, bus); 81380826240SHans de Goede uint32_t portsc = s->portsc[ep->dev->port->index]; 81480826240SHans de Goede 81580826240SHans de Goede if (portsc & PORTSC_POWNER) { 81680826240SHans de Goede return; 81780826240SHans de Goede } 81880826240SHans de Goede 81980826240SHans de Goede s->periodic_sched_active = PERIODIC_ACTIVE; 82080826240SHans de Goede qemu_bh_schedule(s->async_bh); 82180826240SHans de Goede } 82280826240SHans de Goede 823f1ae32a1SGerd Hoffmann static USBDevice *ehci_find_device(EHCIState *ehci, uint8_t addr) 824f1ae32a1SGerd Hoffmann { 825f1ae32a1SGerd Hoffmann USBDevice *dev; 826f1ae32a1SGerd Hoffmann USBPort *port; 827f1ae32a1SGerd Hoffmann int i; 828f1ae32a1SGerd Hoffmann 829f1ae32a1SGerd Hoffmann for (i = 0; i < NB_PORTS; i++) { 830f1ae32a1SGerd Hoffmann port = &ehci->ports[i]; 831f1ae32a1SGerd Hoffmann if (!(ehci->portsc[i] & PORTSC_PED)) { 832f1ae32a1SGerd Hoffmann DPRINTF("Port %d not enabled\n", i); 833f1ae32a1SGerd Hoffmann continue; 834f1ae32a1SGerd Hoffmann } 835f1ae32a1SGerd Hoffmann dev = usb_find_device(port, addr); 836f1ae32a1SGerd Hoffmann if (dev != NULL) { 837f1ae32a1SGerd Hoffmann return dev; 838f1ae32a1SGerd Hoffmann } 839f1ae32a1SGerd Hoffmann } 840f1ae32a1SGerd Hoffmann return NULL; 841f1ae32a1SGerd Hoffmann } 842f1ae32a1SGerd Hoffmann 843f1ae32a1SGerd Hoffmann /* 4.1 host controller initialization */ 8444e289b1bSGonglei void ehci_reset(void *opaque) 845f1ae32a1SGerd Hoffmann { 846f1ae32a1SGerd Hoffmann EHCIState *s = opaque; 847f1ae32a1SGerd Hoffmann int i; 848f1ae32a1SGerd Hoffmann USBDevice *devs[NB_PORTS]; 849f1ae32a1SGerd Hoffmann 850f1ae32a1SGerd Hoffmann trace_usb_ehci_reset(); 851f1ae32a1SGerd Hoffmann 852f1ae32a1SGerd Hoffmann /* 853f1ae32a1SGerd Hoffmann * Do the detach before touching portsc, so that it correctly gets send to 854f1ae32a1SGerd Hoffmann * us or to our companion based on PORTSC_POWNER before the reset. 855f1ae32a1SGerd Hoffmann */ 856f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) { 857f1ae32a1SGerd Hoffmann devs[i] = s->ports[i].dev; 858f1ae32a1SGerd Hoffmann if (devs[i] && devs[i]->attached) { 859f1ae32a1SGerd Hoffmann usb_detach(&s->ports[i]); 860f1ae32a1SGerd Hoffmann } 861f1ae32a1SGerd Hoffmann } 862f1ae32a1SGerd Hoffmann 8633e4f910cSGerd Hoffmann memset(&s->opreg, 0x00, sizeof(s->opreg)); 8643e4f910cSGerd Hoffmann memset(&s->portsc, 0x00, sizeof(s->portsc)); 865f1ae32a1SGerd Hoffmann 866f1ae32a1SGerd Hoffmann s->usbcmd = NB_MAXINTRATE << USBCMD_ITC_SH; 867f1ae32a1SGerd Hoffmann s->usbsts = USBSTS_HALT; 8687efc17afSGerd Hoffmann s->usbsts_pending = 0; 8697efc17afSGerd Hoffmann s->usbsts_frindex = 0; 8705a866074SGerd Hoffmann ehci_update_irq(s); 871f1ae32a1SGerd Hoffmann 872f1ae32a1SGerd Hoffmann s->astate = EST_INACTIVE; 873f1ae32a1SGerd Hoffmann s->pstate = EST_INACTIVE; 874f1ae32a1SGerd Hoffmann 875f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) { 876f1ae32a1SGerd Hoffmann if (s->companion_ports[i]) { 877f1ae32a1SGerd Hoffmann s->portsc[i] = PORTSC_POWNER | PORTSC_PPOWER; 878f1ae32a1SGerd Hoffmann } else { 879f1ae32a1SGerd Hoffmann s->portsc[i] = PORTSC_PPOWER; 880f1ae32a1SGerd Hoffmann } 881f1ae32a1SGerd Hoffmann if (devs[i] && devs[i]->attached) { 882f1ae32a1SGerd Hoffmann usb_attach(&s->ports[i]); 883f1ae32a1SGerd Hoffmann usb_device_reset(devs[i]); 884f1ae32a1SGerd Hoffmann } 885f1ae32a1SGerd Hoffmann } 886f1ae32a1SGerd Hoffmann ehci_queues_rip_all(s, 0); 887f1ae32a1SGerd Hoffmann ehci_queues_rip_all(s, 1); 888bc72ad67SAlex Bligh timer_del(s->frame_timer); 8890fb3e299SGerd Hoffmann qemu_bh_cancel(s->async_bh); 890f1ae32a1SGerd Hoffmann } 891f1ae32a1SGerd Hoffmann 892a8170e5eSAvi Kivity static uint64_t ehci_caps_read(void *ptr, hwaddr addr, 8933e4f910cSGerd Hoffmann unsigned size) 8943e4f910cSGerd Hoffmann { 8953e4f910cSGerd Hoffmann EHCIState *s = ptr; 8963e4f910cSGerd Hoffmann return s->caps[addr]; 8973e4f910cSGerd Hoffmann } 8983e4f910cSGerd Hoffmann 899dff0367cSPrasad J Pandit static void ehci_caps_write(void *ptr, hwaddr addr, 900dff0367cSPrasad J Pandit uint64_t val, unsigned size) 901dff0367cSPrasad J Pandit { 902dff0367cSPrasad J Pandit } 903dff0367cSPrasad J Pandit 904a8170e5eSAvi Kivity static uint64_t ehci_opreg_read(void *ptr, hwaddr addr, 9053e4f910cSGerd Hoffmann unsigned size) 906f1ae32a1SGerd Hoffmann { 907f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 908f1ae32a1SGerd Hoffmann uint32_t val; 909f1ae32a1SGerd Hoffmann 9109359a58bSHans de Goede switch (addr) { 9119359a58bSHans de Goede case FRINDEX: 9129359a58bSHans de Goede /* Round down to mult of 8, else it can go backwards on migration */ 9139359a58bSHans de Goede val = s->frindex & ~7; 9149359a58bSHans de Goede break; 9159359a58bSHans de Goede default: 9163e4f910cSGerd Hoffmann val = s->opreg[addr >> 2]; 9179359a58bSHans de Goede } 9189359a58bSHans de Goede 91927a11324SPeter Crosthwaite trace_usb_ehci_opreg_read(addr + s->opregbase, addr2str(addr), val); 920f1ae32a1SGerd Hoffmann return val; 921f1ae32a1SGerd Hoffmann } 922f1ae32a1SGerd Hoffmann 923a8170e5eSAvi Kivity static uint64_t ehci_port_read(void *ptr, hwaddr addr, 9243e4f910cSGerd Hoffmann unsigned size) 925f1ae32a1SGerd Hoffmann { 926f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 927f1ae32a1SGerd Hoffmann uint32_t val; 928f1ae32a1SGerd Hoffmann 9293e4f910cSGerd Hoffmann val = s->portsc[addr >> 2]; 930cc8d6a84SKuo-Jung Su trace_usb_ehci_portsc_read(addr + s->portscbase, addr >> 2, val); 931f1ae32a1SGerd Hoffmann return val; 932f1ae32a1SGerd Hoffmann } 933f1ae32a1SGerd Hoffmann 934f1ae32a1SGerd Hoffmann static void handle_port_owner_write(EHCIState *s, int port, uint32_t owner) 935f1ae32a1SGerd Hoffmann { 936f1ae32a1SGerd Hoffmann USBDevice *dev = s->ports[port].dev; 937f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port]; 938f1ae32a1SGerd Hoffmann uint32_t orig; 939f1ae32a1SGerd Hoffmann 940f1ae32a1SGerd Hoffmann if (s->companion_ports[port] == NULL) 941f1ae32a1SGerd Hoffmann return; 942f1ae32a1SGerd Hoffmann 943f1ae32a1SGerd Hoffmann owner = owner & PORTSC_POWNER; 944f1ae32a1SGerd Hoffmann orig = *portsc & PORTSC_POWNER; 945f1ae32a1SGerd Hoffmann 946f1ae32a1SGerd Hoffmann if (!(owner ^ orig)) { 947f1ae32a1SGerd Hoffmann return; 948f1ae32a1SGerd Hoffmann } 949f1ae32a1SGerd Hoffmann 950f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 951f1ae32a1SGerd Hoffmann usb_detach(&s->ports[port]); 952f1ae32a1SGerd Hoffmann } 953f1ae32a1SGerd Hoffmann 954f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_POWNER; 955f1ae32a1SGerd Hoffmann *portsc |= owner; 956f1ae32a1SGerd Hoffmann 957f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 958f1ae32a1SGerd Hoffmann usb_attach(&s->ports[port]); 959f1ae32a1SGerd Hoffmann } 960f1ae32a1SGerd Hoffmann } 961f1ae32a1SGerd Hoffmann 962a8170e5eSAvi Kivity static void ehci_port_write(void *ptr, hwaddr addr, 9633e4f910cSGerd Hoffmann uint64_t val, unsigned size) 964f1ae32a1SGerd Hoffmann { 9653e4f910cSGerd Hoffmann EHCIState *s = ptr; 9663e4f910cSGerd Hoffmann int port = addr >> 2; 967f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port]; 9683e4f910cSGerd Hoffmann uint32_t old = *portsc; 969f1ae32a1SGerd Hoffmann USBDevice *dev = s->ports[port].dev; 970f1ae32a1SGerd Hoffmann 971cc8d6a84SKuo-Jung Su trace_usb_ehci_portsc_write(addr + s->portscbase, addr >> 2, val); 9723e4f910cSGerd Hoffmann 973f1ae32a1SGerd Hoffmann /* Clear rwc bits */ 974f1ae32a1SGerd Hoffmann *portsc &= ~(val & PORTSC_RWC_MASK); 975f1ae32a1SGerd Hoffmann /* The guest may clear, but not set the PED bit */ 976f1ae32a1SGerd Hoffmann *portsc &= val | ~PORTSC_PED; 977f1ae32a1SGerd Hoffmann /* POWNER is masked out by RO_MASK as it is RO when we've no companion */ 978f1ae32a1SGerd Hoffmann handle_port_owner_write(s, port, val); 979f1ae32a1SGerd Hoffmann /* And finally apply RO_MASK */ 980f1ae32a1SGerd Hoffmann val &= PORTSC_RO_MASK; 981f1ae32a1SGerd Hoffmann 982f1ae32a1SGerd Hoffmann if ((val & PORTSC_PRESET) && !(*portsc & PORTSC_PRESET)) { 983f1ae32a1SGerd Hoffmann trace_usb_ehci_port_reset(port, 1); 984f1ae32a1SGerd Hoffmann } 985f1ae32a1SGerd Hoffmann 986f1ae32a1SGerd Hoffmann if (!(val & PORTSC_PRESET) &&(*portsc & PORTSC_PRESET)) { 987f1ae32a1SGerd Hoffmann trace_usb_ehci_port_reset(port, 0); 988f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 989f1ae32a1SGerd Hoffmann usb_port_reset(&s->ports[port]); 990f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_CSC; 991f1ae32a1SGerd Hoffmann } 992f1ae32a1SGerd Hoffmann 993f1ae32a1SGerd Hoffmann /* 994f1ae32a1SGerd Hoffmann * Table 2.16 Set the enable bit(and enable bit change) to indicate 995f1ae32a1SGerd Hoffmann * to SW that this port has a high speed device attached 996f1ae32a1SGerd Hoffmann */ 997f1ae32a1SGerd Hoffmann if (dev && dev->attached && (dev->speedmask & USB_SPEED_MASK_HIGH)) { 998f1ae32a1SGerd Hoffmann val |= PORTSC_PED; 999f1ae32a1SGerd Hoffmann } 1000f1ae32a1SGerd Hoffmann } 1001f1ae32a1SGerd Hoffmann 1002e489df40SGerd Hoffmann if ((val & PORTSC_SUSPEND) && !(*portsc & PORTSC_SUSPEND)) { 1003e489df40SGerd Hoffmann trace_usb_ehci_port_suspend(port); 1004e489df40SGerd Hoffmann } 1005e489df40SGerd Hoffmann if (!(val & PORTSC_FPRES) && (*portsc & PORTSC_FPRES)) { 1006e489df40SGerd Hoffmann trace_usb_ehci_port_resume(port); 1007e489df40SGerd Hoffmann val &= ~PORTSC_SUSPEND; 1008e489df40SGerd Hoffmann } 1009e489df40SGerd Hoffmann 1010f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_RO_MASK; 1011f1ae32a1SGerd Hoffmann *portsc |= val; 1012cc8d6a84SKuo-Jung Su trace_usb_ehci_portsc_change(addr + s->portscbase, addr >> 2, *portsc, old); 1013f1ae32a1SGerd Hoffmann } 1014f1ae32a1SGerd Hoffmann 1015a8170e5eSAvi Kivity static void ehci_opreg_write(void *ptr, hwaddr addr, 10163e4f910cSGerd Hoffmann uint64_t val, unsigned size) 1017f1ae32a1SGerd Hoffmann { 1018f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 10193e4f910cSGerd Hoffmann uint32_t *mmio = s->opreg + (addr >> 2); 1020f1ae32a1SGerd Hoffmann uint32_t old = *mmio; 1021f1ae32a1SGerd Hoffmann int i; 1022f1ae32a1SGerd Hoffmann 102327a11324SPeter Crosthwaite trace_usb_ehci_opreg_write(addr + s->opregbase, addr2str(addr), val); 1024f1ae32a1SGerd Hoffmann 102527a11324SPeter Crosthwaite switch (addr) { 1026f1ae32a1SGerd Hoffmann case USBCMD: 10277046530cSGerd Hoffmann if (val & USBCMD_HCRESET) { 10287046530cSGerd Hoffmann ehci_reset(s); 10297046530cSGerd Hoffmann val = s->usbcmd; 10307046530cSGerd Hoffmann break; 10317046530cSGerd Hoffmann } 10327046530cSGerd Hoffmann 1033f1ae32a1SGerd Hoffmann /* not supporting dynamic frame list size at the moment */ 1034f1ae32a1SGerd Hoffmann if ((val & USBCMD_FLS) && !(s->usbcmd & USBCMD_FLS)) { 1035f1ae32a1SGerd Hoffmann fprintf(stderr, "attempt to set frame list size -- value %d\n", 10363e4f910cSGerd Hoffmann (int)val & USBCMD_FLS); 1037f1ae32a1SGerd Hoffmann val &= ~USBCMD_FLS; 1038f1ae32a1SGerd Hoffmann } 103947d073ccSHans de Goede 1040a1c3e4b8SHans de Goede if (val & USBCMD_IAAD) { 1041a1c3e4b8SHans de Goede /* 1042a1c3e4b8SHans de Goede * Process IAAD immediately, otherwise the Linux IAAD watchdog may 1043a1c3e4b8SHans de Goede * trigger and re-use a qh without us seeing the unlink. 1044a1c3e4b8SHans de Goede */ 1045a1c3e4b8SHans de Goede s->async_stepdown = 0; 1046a1c3e4b8SHans de Goede qemu_bh_schedule(s->async_bh); 10471defcbd1SGerd Hoffmann trace_usb_ehci_doorbell_ring(); 1048a1c3e4b8SHans de Goede } 1049a1c3e4b8SHans de Goede 105047d073ccSHans de Goede if (((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & val) != 105147d073ccSHans de Goede ((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & s->usbcmd)) { 105247d073ccSHans de Goede if (s->pstate == EST_INACTIVE) { 105347d073ccSHans de Goede SET_LAST_RUN_CLOCK(s); 105447d073ccSHans de Goede } 105547d073ccSHans de Goede s->usbcmd = val; /* Set usbcmd for ehci_update_halt() */ 105647d073ccSHans de Goede ehci_update_halt(s); 105747d073ccSHans de Goede s->async_stepdown = 0; 10580262f65aSHans de Goede qemu_bh_schedule(s->async_bh); 105947d073ccSHans de Goede } 1060f1ae32a1SGerd Hoffmann break; 1061f1ae32a1SGerd Hoffmann 1062f1ae32a1SGerd Hoffmann case USBSTS: 1063a31f0531SJim Meyering val &= USBSTS_RO_MASK; // bits 6 through 31 are RO 1064a31f0531SJim Meyering ehci_clear_usbsts(s, val); // bits 0 through 5 are R/WC 1065f1ae32a1SGerd Hoffmann val = s->usbsts; 10667efc17afSGerd Hoffmann ehci_update_irq(s); 1067f1ae32a1SGerd Hoffmann break; 1068f1ae32a1SGerd Hoffmann 1069f1ae32a1SGerd Hoffmann case USBINTR: 1070f1ae32a1SGerd Hoffmann val &= USBINTR_MASK; 107140862309SGerd Hoffmann if (ehci_enabled(s) && (USBSTS_FLR & val)) { 107240862309SGerd Hoffmann qemu_bh_schedule(s->async_bh); 107340862309SGerd Hoffmann } 1074f1ae32a1SGerd Hoffmann break; 1075f1ae32a1SGerd Hoffmann 10768a771f77SHans de Goede case FRINDEX: 10779359a58bSHans de Goede val &= 0x00003fff; /* frindex is 14bits */ 10789359a58bSHans de Goede s->usbsts_frindex = val; 10798a771f77SHans de Goede break; 10808a771f77SHans de Goede 1081f1ae32a1SGerd Hoffmann case CONFIGFLAG: 1082f1ae32a1SGerd Hoffmann val &= 0x1; 1083f1ae32a1SGerd Hoffmann if (val) { 1084f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) 1085f1ae32a1SGerd Hoffmann handle_port_owner_write(s, i, 0); 1086f1ae32a1SGerd Hoffmann } 1087f1ae32a1SGerd Hoffmann break; 1088f1ae32a1SGerd Hoffmann 1089f1ae32a1SGerd Hoffmann case PERIODICLISTBASE: 1090ec807d12SGerd Hoffmann if (ehci_periodic_enabled(s)) { 1091f1ae32a1SGerd Hoffmann fprintf(stderr, 1092f1ae32a1SGerd Hoffmann "ehci: PERIODIC list base register set while periodic schedule\n" 1093f1ae32a1SGerd Hoffmann " is enabled and HC is enabled\n"); 1094f1ae32a1SGerd Hoffmann } 1095f1ae32a1SGerd Hoffmann break; 1096f1ae32a1SGerd Hoffmann 1097f1ae32a1SGerd Hoffmann case ASYNCLISTADDR: 1098ec807d12SGerd Hoffmann if (ehci_async_enabled(s)) { 1099f1ae32a1SGerd Hoffmann fprintf(stderr, 1100f1ae32a1SGerd Hoffmann "ehci: ASYNC list address register set while async schedule\n" 1101f1ae32a1SGerd Hoffmann " is enabled and HC is enabled\n"); 1102f1ae32a1SGerd Hoffmann } 1103f1ae32a1SGerd Hoffmann break; 1104f1ae32a1SGerd Hoffmann } 1105f1ae32a1SGerd Hoffmann 1106f1ae32a1SGerd Hoffmann *mmio = val; 110727a11324SPeter Crosthwaite trace_usb_ehci_opreg_change(addr + s->opregbase, addr2str(addr), 110827a11324SPeter Crosthwaite *mmio, old); 1109f1ae32a1SGerd Hoffmann } 1110f1ae32a1SGerd Hoffmann 1111a5e0139aSGerd Hoffmann /* 1112a5e0139aSGerd Hoffmann * Write the qh back to guest physical memory. This step isn't 1113a5e0139aSGerd Hoffmann * in the EHCI spec but we need to do it since we don't share 1114a5e0139aSGerd Hoffmann * physical memory with our guest VM. 1115a5e0139aSGerd Hoffmann * 1116a5e0139aSGerd Hoffmann * The first three dwords are read-only for the EHCI, so skip them 1117a5e0139aSGerd Hoffmann * when writing back the qh. 1118a5e0139aSGerd Hoffmann */ 1119a5e0139aSGerd Hoffmann static void ehci_flush_qh(EHCIQueue *q) 1120a5e0139aSGerd Hoffmann { 1121a5e0139aSGerd Hoffmann uint32_t *qh = (uint32_t *) &q->qh; 1122a5e0139aSGerd Hoffmann uint32_t dwords = sizeof(EHCIqh) >> 2; 1123a5e0139aSGerd Hoffmann uint32_t addr = NLPTR_GET(q->qhaddr); 1124a5e0139aSGerd Hoffmann 1125a5e0139aSGerd Hoffmann put_dwords(q->ehci, addr + 3 * sizeof(uint32_t), qh + 3, dwords - 3); 1126a5e0139aSGerd Hoffmann } 1127a5e0139aSGerd Hoffmann 1128f1ae32a1SGerd Hoffmann // 4.10.2 1129f1ae32a1SGerd Hoffmann 1130f1ae32a1SGerd Hoffmann static int ehci_qh_do_overlay(EHCIQueue *q) 1131f1ae32a1SGerd Hoffmann { 1132eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1133f1ae32a1SGerd Hoffmann int i; 1134f1ae32a1SGerd Hoffmann int dtoggle; 1135f1ae32a1SGerd Hoffmann int ping; 1136f1ae32a1SGerd Hoffmann int eps; 1137f1ae32a1SGerd Hoffmann int reload; 1138f1ae32a1SGerd Hoffmann 1139eb36a88eSGerd Hoffmann assert(p != NULL); 1140eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1141eb36a88eSGerd Hoffmann 1142f1ae32a1SGerd Hoffmann // remember values in fields to preserve in qh after overlay 1143f1ae32a1SGerd Hoffmann 1144f1ae32a1SGerd Hoffmann dtoggle = q->qh.token & QTD_TOKEN_DTOGGLE; 1145f1ae32a1SGerd Hoffmann ping = q->qh.token & QTD_TOKEN_PING; 1146f1ae32a1SGerd Hoffmann 1147eb36a88eSGerd Hoffmann q->qh.current_qtd = p->qtdaddr; 1148eb36a88eSGerd Hoffmann q->qh.next_qtd = p->qtd.next; 1149eb36a88eSGerd Hoffmann q->qh.altnext_qtd = p->qtd.altnext; 1150eb36a88eSGerd Hoffmann q->qh.token = p->qtd.token; 1151f1ae32a1SGerd Hoffmann 1152f1ae32a1SGerd Hoffmann 1153f1ae32a1SGerd Hoffmann eps = get_field(q->qh.epchar, QH_EPCHAR_EPS); 1154f1ae32a1SGerd Hoffmann if (eps == EHCI_QH_EPS_HIGH) { 1155f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_PING; 1156f1ae32a1SGerd Hoffmann q->qh.token |= ping; 1157f1ae32a1SGerd Hoffmann } 1158f1ae32a1SGerd Hoffmann 1159f1ae32a1SGerd Hoffmann reload = get_field(q->qh.epchar, QH_EPCHAR_RL); 1160f1ae32a1SGerd Hoffmann set_field(&q->qh.altnext_qtd, reload, QH_ALTNEXT_NAKCNT); 1161f1ae32a1SGerd Hoffmann 1162f1ae32a1SGerd Hoffmann for (i = 0; i < 5; i++) { 1163eb36a88eSGerd Hoffmann q->qh.bufptr[i] = p->qtd.bufptr[i]; 1164f1ae32a1SGerd Hoffmann } 1165f1ae32a1SGerd Hoffmann 1166f1ae32a1SGerd Hoffmann if (!(q->qh.epchar & QH_EPCHAR_DTC)) { 1167f1ae32a1SGerd Hoffmann // preserve QH DT bit 1168f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_DTOGGLE; 1169f1ae32a1SGerd Hoffmann q->qh.token |= dtoggle; 1170f1ae32a1SGerd Hoffmann } 1171f1ae32a1SGerd Hoffmann 1172f1ae32a1SGerd Hoffmann q->qh.bufptr[1] &= ~BUFPTR_CPROGMASK_MASK; 1173f1ae32a1SGerd Hoffmann q->qh.bufptr[2] &= ~BUFPTR_FRAMETAG_MASK; 1174f1ae32a1SGerd Hoffmann 1175a5e0139aSGerd Hoffmann ehci_flush_qh(q); 1176f1ae32a1SGerd Hoffmann 1177f1ae32a1SGerd Hoffmann return 0; 1178f1ae32a1SGerd Hoffmann } 1179f1ae32a1SGerd Hoffmann 1180eb36a88eSGerd Hoffmann static int ehci_init_transfer(EHCIPacket *p) 1181f1ae32a1SGerd Hoffmann { 1182f1ae32a1SGerd Hoffmann uint32_t cpage, offset, bytes, plen; 1183f1ae32a1SGerd Hoffmann dma_addr_t page; 1184f1ae32a1SGerd Hoffmann 1185eb36a88eSGerd Hoffmann cpage = get_field(p->qtd.token, QTD_TOKEN_CPAGE); 1186eb36a88eSGerd Hoffmann bytes = get_field(p->qtd.token, QTD_TOKEN_TBYTES); 1187eb36a88eSGerd Hoffmann offset = p->qtd.bufptr[0] & ~QTD_BUFPTR_MASK; 1188adbecc89SGerd Hoffmann qemu_sglist_init(&p->sgl, p->queue->ehci->device, 5, p->queue->ehci->as); 1189f1ae32a1SGerd Hoffmann 1190f1ae32a1SGerd Hoffmann while (bytes > 0) { 1191f1ae32a1SGerd Hoffmann if (cpage > 4) { 1192f1ae32a1SGerd Hoffmann fprintf(stderr, "cpage out of range (%d)\n", cpage); 1193791f9775SLi Qiang qemu_sglist_destroy(&p->sgl); 119401e26b0eSHans de Goede return -1; 1195f1ae32a1SGerd Hoffmann } 1196f1ae32a1SGerd Hoffmann 1197eb36a88eSGerd Hoffmann page = p->qtd.bufptr[cpage] & QTD_BUFPTR_MASK; 1198f1ae32a1SGerd Hoffmann page += offset; 1199f1ae32a1SGerd Hoffmann plen = bytes; 1200f1ae32a1SGerd Hoffmann if (plen > 4096 - offset) { 1201f1ae32a1SGerd Hoffmann plen = 4096 - offset; 1202f1ae32a1SGerd Hoffmann offset = 0; 1203f1ae32a1SGerd Hoffmann cpage++; 1204f1ae32a1SGerd Hoffmann } 1205f1ae32a1SGerd Hoffmann 1206eb36a88eSGerd Hoffmann qemu_sglist_add(&p->sgl, page, plen); 1207f1ae32a1SGerd Hoffmann bytes -= plen; 1208f1ae32a1SGerd Hoffmann } 1209f1ae32a1SGerd Hoffmann return 0; 1210f1ae32a1SGerd Hoffmann } 1211f1ae32a1SGerd Hoffmann 1212e696b1daSHans de Goede static void ehci_finish_transfer(EHCIQueue *q, int len) 1213f1ae32a1SGerd Hoffmann { 1214f1ae32a1SGerd Hoffmann uint32_t cpage, offset; 1215f1ae32a1SGerd Hoffmann 1216e696b1daSHans de Goede if (len > 0) { 1217f1ae32a1SGerd Hoffmann /* update cpage & offset */ 1218f1ae32a1SGerd Hoffmann cpage = get_field(q->qh.token, QTD_TOKEN_CPAGE); 1219f1ae32a1SGerd Hoffmann offset = q->qh.bufptr[0] & ~QTD_BUFPTR_MASK; 1220f1ae32a1SGerd Hoffmann 1221e696b1daSHans de Goede offset += len; 1222f1ae32a1SGerd Hoffmann cpage += offset >> QTD_BUFPTR_SH; 1223f1ae32a1SGerd Hoffmann offset &= ~QTD_BUFPTR_MASK; 1224f1ae32a1SGerd Hoffmann 1225f1ae32a1SGerd Hoffmann set_field(&q->qh.token, cpage, QTD_TOKEN_CPAGE); 1226f1ae32a1SGerd Hoffmann q->qh.bufptr[0] &= QTD_BUFPTR_MASK; 1227f1ae32a1SGerd Hoffmann q->qh.bufptr[0] |= offset; 1228f1ae32a1SGerd Hoffmann } 1229f1ae32a1SGerd Hoffmann } 1230f1ae32a1SGerd Hoffmann 1231f1ae32a1SGerd Hoffmann static void ehci_async_complete_packet(USBPort *port, USBPacket *packet) 1232f1ae32a1SGerd Hoffmann { 1233eb36a88eSGerd Hoffmann EHCIPacket *p; 1234f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 1235f1ae32a1SGerd Hoffmann uint32_t portsc = s->portsc[port->index]; 1236f1ae32a1SGerd Hoffmann 1237f1ae32a1SGerd Hoffmann if (portsc & PORTSC_POWNER) { 1238f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 1239f1ae32a1SGerd Hoffmann companion->ops->complete(companion, packet); 1240f1ae32a1SGerd Hoffmann return; 1241f1ae32a1SGerd Hoffmann } 1242f1ae32a1SGerd Hoffmann 1243eb36a88eSGerd Hoffmann p = container_of(packet, EHCIPacket, packet); 1244eb36a88eSGerd Hoffmann assert(p->async == EHCI_ASYNC_INFLIGHT); 12450cae7b1aSHans de Goede 12469a77a0f5SHans de Goede if (packet->status == USB_RET_REMOVE_FROM_QUEUE) { 12470cae7b1aSHans de Goede trace_usb_ehci_packet_action(p->queue, p, "remove"); 12480cae7b1aSHans de Goede ehci_free_packet(p); 12490cae7b1aSHans de Goede return; 12500cae7b1aSHans de Goede } 12510cae7b1aSHans de Goede 12520cae7b1aSHans de Goede trace_usb_ehci_packet_action(p->queue, p, "wakeup"); 1253eb36a88eSGerd Hoffmann p->async = EHCI_ASYNC_FINISHED; 1254ae710b99SGerd Hoffmann 125580826240SHans de Goede if (!p->queue->async) { 125680826240SHans de Goede s->periodic_sched_active = PERIODIC_ACTIVE; 1257ae710b99SGerd Hoffmann } 125880826240SHans de Goede qemu_bh_schedule(s->async_bh); 1259f1ae32a1SGerd Hoffmann } 1260f1ae32a1SGerd Hoffmann 1261f1ae32a1SGerd Hoffmann static void ehci_execute_complete(EHCIQueue *q) 1262f1ae32a1SGerd Hoffmann { 1263eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1264e696b1daSHans de Goede uint32_t tbytes; 1265eb36a88eSGerd Hoffmann 1266eb36a88eSGerd Hoffmann assert(p != NULL); 1267eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1268ef5b2344SHans de Goede assert(p->async == EHCI_ASYNC_INITIALIZED || 1269ef5b2344SHans de Goede p->async == EHCI_ASYNC_FINISHED); 1270f1ae32a1SGerd Hoffmann 1271e696b1daSHans de Goede DPRINTF("execute_complete: qhaddr 0x%x, next 0x%x, qtdaddr 0x%x, " 1272e696b1daSHans de Goede "status %d, actual_length %d\n", 1273e696b1daSHans de Goede q->qhaddr, q->qh.next, q->qtdaddr, 1274e696b1daSHans de Goede p->packet.status, p->packet.actual_length); 1275f1ae32a1SGerd Hoffmann 1276e696b1daSHans de Goede switch (p->packet.status) { 1277e696b1daSHans de Goede case USB_RET_SUCCESS: 1278e696b1daSHans de Goede break; 1279f1ae32a1SGerd Hoffmann case USB_RET_IOERROR: 1280f1ae32a1SGerd Hoffmann case USB_RET_NODEV: 1281f1ae32a1SGerd Hoffmann q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_XACTERR); 1282f1ae32a1SGerd Hoffmann set_field(&q->qh.token, 0, QTD_TOKEN_CERR); 12837efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1284f1ae32a1SGerd Hoffmann break; 1285f1ae32a1SGerd Hoffmann case USB_RET_STALL: 1286f1ae32a1SGerd Hoffmann q->qh.token |= QTD_TOKEN_HALT; 12877efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1288f1ae32a1SGerd Hoffmann break; 1289f1ae32a1SGerd Hoffmann case USB_RET_NAK: 1290f1ae32a1SGerd Hoffmann set_field(&q->qh.altnext_qtd, 0, QH_ALTNEXT_NAKCNT); 1291f1ae32a1SGerd Hoffmann return; /* We're not done yet with this transaction */ 1292f1ae32a1SGerd Hoffmann case USB_RET_BABBLE: 1293f1ae32a1SGerd Hoffmann q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_BABBLE); 12947efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1295f1ae32a1SGerd Hoffmann break; 1296f1ae32a1SGerd Hoffmann default: 1297f1ae32a1SGerd Hoffmann /* should not be triggerable */ 1298e696b1daSHans de Goede fprintf(stderr, "USB invalid response %d\n", p->packet.status); 1299dfc6f865SStefan Weil g_assert_not_reached(); 1300f1ae32a1SGerd Hoffmann break; 1301f1ae32a1SGerd Hoffmann } 1302f1ae32a1SGerd Hoffmann 1303e696b1daSHans de Goede /* TODO check 4.12 for splits */ 1304e696b1daSHans de Goede tbytes = get_field(q->qh.token, QTD_TOKEN_TBYTES); 1305549a3c3dSHans de Goede if (tbytes && p->pid == USB_TOKEN_IN) { 1306e696b1daSHans de Goede tbytes -= p->packet.actual_length; 1307cf08a8a1SHans de Goede if (tbytes) { 1308cf08a8a1SHans de Goede /* 4.15.1.2 must raise int on a short input packet */ 1309cf08a8a1SHans de Goede ehci_raise_irq(q->ehci, USBSTS_INT); 131052c15e59SHans de Goede if (q->async) { 131152c15e59SHans de Goede q->ehci->int_req_by_async = true; 131252c15e59SHans de Goede } 1313cf08a8a1SHans de Goede } 1314f1ae32a1SGerd Hoffmann } else { 1315549a3c3dSHans de Goede tbytes = 0; 1316f1ae32a1SGerd Hoffmann } 1317549a3c3dSHans de Goede DPRINTF("updating tbytes to %d\n", tbytes); 1318549a3c3dSHans de Goede set_field(&q->qh.token, tbytes, QTD_TOKEN_TBYTES); 1319e696b1daSHans de Goede 1320e696b1daSHans de Goede ehci_finish_transfer(q, p->packet.actual_length); 1321e2f89926SDavid Gibson usb_packet_unmap(&p->packet, &p->sgl); 1322eb36a88eSGerd Hoffmann qemu_sglist_destroy(&p->sgl); 1323ef5b2344SHans de Goede p->async = EHCI_ASYNC_NONE; 1324f1ae32a1SGerd Hoffmann 1325f1ae32a1SGerd Hoffmann q->qh.token ^= QTD_TOKEN_DTOGGLE; 1326f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_ACTIVE; 1327f1ae32a1SGerd Hoffmann 1328f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_IOC) { 13297efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_INT); 133044272b0fSHans de Goede if (q->async) { 133144272b0fSHans de Goede q->ehci->int_req_by_async = true; 133244272b0fSHans de Goede } 1333f1ae32a1SGerd Hoffmann } 1334f1ae32a1SGerd Hoffmann } 1335f1ae32a1SGerd Hoffmann 133601e26b0eSHans de Goede /* 4.10.3 returns "again" */ 1337773dc9cdSGerd Hoffmann static int ehci_execute(EHCIPacket *p, const char *action) 1338f1ae32a1SGerd Hoffmann { 1339f1ae32a1SGerd Hoffmann USBEndpoint *ep; 1340f1ae32a1SGerd Hoffmann int endp; 13416ba43f1fSHans de Goede bool spd; 1342f1ae32a1SGerd Hoffmann 1343ef5b2344SHans de Goede assert(p->async == EHCI_ASYNC_NONE || 1344ef5b2344SHans de Goede p->async == EHCI_ASYNC_INITIALIZED); 1345ef5b2344SHans de Goede 13464224558fSGerd Hoffmann if (!(p->qtd.token & QTD_TOKEN_ACTIVE)) { 13474224558fSGerd Hoffmann fprintf(stderr, "Attempting to execute inactive qtd\n"); 134801e26b0eSHans de Goede return -1; 1349f1ae32a1SGerd Hoffmann } 1350f1ae32a1SGerd Hoffmann 1351549a3c3dSHans de Goede if (get_field(p->qtd.token, QTD_TOKEN_TBYTES) > BUFF_SIZE) { 13523a8ca08eSHans de Goede ehci_trace_guest_bug(p->queue->ehci, 13533a8ca08eSHans de Goede "guest requested more bytes than allowed"); 135401e26b0eSHans de Goede return -1; 1355f1ae32a1SGerd Hoffmann } 1356f1ae32a1SGerd Hoffmann 1357f79738b0SHans de Goede if (!ehci_verify_pid(p->queue, &p->qtd)) { 1358f79738b0SHans de Goede ehci_queue_stopped(p->queue); /* Mark the ep in the prev dir stopped */ 1359f79738b0SHans de Goede } 136051e0c5d0SHans de Goede p->pid = ehci_get_pid(&p->qtd); 1361bbbc39ccSHans de Goede p->queue->last_pid = p->pid; 1362ef5b2344SHans de Goede endp = get_field(p->queue->qh.epchar, QH_EPCHAR_EP); 1363ef5b2344SHans de Goede ep = usb_ep_get(p->queue->dev, p->pid, endp); 1364ef5b2344SHans de Goede 1365ef5b2344SHans de Goede if (p->async == EHCI_ASYNC_NONE) { 1366eb36a88eSGerd Hoffmann if (ehci_init_transfer(p) != 0) { 136701e26b0eSHans de Goede return -1; 1368f1ae32a1SGerd Hoffmann } 1369f1ae32a1SGerd Hoffmann 13706ba43f1fSHans de Goede spd = (p->pid == USB_TOKEN_IN && NLPTR_TBIT(p->qtd.altnext) == 0); 13718550a02dSGerd Hoffmann usb_packet_setup(&p->packet, p->pid, ep, 0, p->qtdaddr, spd, 1372a6fb2ddbSHans de Goede (p->qtd.token & QTD_TOKEN_IOC) != 0); 1373eb36a88eSGerd Hoffmann usb_packet_map(&p->packet, &p->sgl); 1374ef5b2344SHans de Goede p->async = EHCI_ASYNC_INITIALIZED; 1375ef5b2344SHans de Goede } 1376f1ae32a1SGerd Hoffmann 1377773dc9cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, action); 13789a77a0f5SHans de Goede usb_handle_packet(p->queue->dev, &p->packet); 13799a77a0f5SHans de Goede DPRINTF("submit: qh 0x%x next 0x%x qtd 0x%x pid 0x%x len %zd endp 0x%x " 13809a77a0f5SHans de Goede "status %d actual_length %d\n", p->queue->qhaddr, p->qtd.next, 13819a77a0f5SHans de Goede p->qtdaddr, p->pid, p->packet.iov.size, endp, p->packet.status, 13829a77a0f5SHans de Goede p->packet.actual_length); 1383f1ae32a1SGerd Hoffmann 13849a77a0f5SHans de Goede if (p->packet.actual_length > BUFF_SIZE) { 1385f1ae32a1SGerd Hoffmann fprintf(stderr, "ret from usb_handle_packet > BUFF_SIZE\n"); 138601e26b0eSHans de Goede return -1; 1387f1ae32a1SGerd Hoffmann } 1388f1ae32a1SGerd Hoffmann 138901e26b0eSHans de Goede return 1; 1390f1ae32a1SGerd Hoffmann } 1391f1ae32a1SGerd Hoffmann 1392f1ae32a1SGerd Hoffmann /* 4.7.2 1393f1ae32a1SGerd Hoffmann */ 1394f1ae32a1SGerd Hoffmann 1395f1ae32a1SGerd Hoffmann static int ehci_process_itd(EHCIState *ehci, 1396e983395dSGerd Hoffmann EHCIitd *itd, 1397e983395dSGerd Hoffmann uint32_t addr) 1398f1ae32a1SGerd Hoffmann { 1399f1ae32a1SGerd Hoffmann USBDevice *dev; 1400f1ae32a1SGerd Hoffmann USBEndpoint *ep; 1401a49923d2SGerd Hoffmann uint32_t i, len, pid, dir, devaddr, endp; 1402f1ae32a1SGerd Hoffmann uint32_t pg, off, ptr1, ptr2, max, mult; 1403f1ae32a1SGerd Hoffmann 140480826240SHans de Goede ehci->periodic_sched_active = PERIODIC_ACTIVE; 140580826240SHans de Goede 1406f1ae32a1SGerd Hoffmann dir =(itd->bufptr[1] & ITD_BUFPTR_DIRECTION); 1407f1ae32a1SGerd Hoffmann devaddr = get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR); 1408f1ae32a1SGerd Hoffmann endp = get_field(itd->bufptr[0], ITD_BUFPTR_EP); 1409f1ae32a1SGerd Hoffmann max = get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT); 1410f1ae32a1SGerd Hoffmann mult = get_field(itd->bufptr[2], ITD_BUFPTR_MULT); 1411f1ae32a1SGerd Hoffmann 1412f1ae32a1SGerd Hoffmann for(i = 0; i < 8; i++) { 1413f1ae32a1SGerd Hoffmann if (itd->transact[i] & ITD_XACT_ACTIVE) { 1414f1ae32a1SGerd Hoffmann pg = get_field(itd->transact[i], ITD_XACT_PGSEL); 1415f1ae32a1SGerd Hoffmann off = itd->transact[i] & ITD_XACT_OFFSET_MASK; 1416f1ae32a1SGerd Hoffmann len = get_field(itd->transact[i], ITD_XACT_LENGTH); 1417f1ae32a1SGerd Hoffmann 1418f1ae32a1SGerd Hoffmann if (len > max * mult) { 1419f1ae32a1SGerd Hoffmann len = max * mult; 1420f1ae32a1SGerd Hoffmann } 142149d925ceSPrasad J Pandit if (len > BUFF_SIZE || pg > 6) { 142201e26b0eSHans de Goede return -1; 1423f1ae32a1SGerd Hoffmann } 1424f1ae32a1SGerd Hoffmann 142549d925ceSPrasad J Pandit ptr1 = (itd->bufptr[pg] & ITD_BUFPTR_MASK); 1426adbecc89SGerd Hoffmann qemu_sglist_init(&ehci->isgl, ehci->device, 2, ehci->as); 1427f1ae32a1SGerd Hoffmann if (off + len > 4096) { 1428f1ae32a1SGerd Hoffmann /* transfer crosses page border */ 142949d925ceSPrasad J Pandit if (pg == 6) { 1430b16c129dSLi Qiang qemu_sglist_destroy(&ehci->isgl); 143149d925ceSPrasad J Pandit return -1; /* avoid page pg + 1 */ 143249d925ceSPrasad J Pandit } 143349d925ceSPrasad J Pandit ptr2 = (itd->bufptr[pg + 1] & ITD_BUFPTR_MASK); 1434f1ae32a1SGerd Hoffmann uint32_t len2 = off + len - 4096; 1435f1ae32a1SGerd Hoffmann uint32_t len1 = len - len2; 1436f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr1 + off, len1); 1437f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr2, len2); 1438f1ae32a1SGerd Hoffmann } else { 1439f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr1 + off, len); 1440f1ae32a1SGerd Hoffmann } 1441f1ae32a1SGerd Hoffmann 1442f1ae32a1SGerd Hoffmann pid = dir ? USB_TOKEN_IN : USB_TOKEN_OUT; 1443f1ae32a1SGerd Hoffmann 1444f1ae32a1SGerd Hoffmann dev = ehci_find_device(ehci, devaddr); 1445f1ae32a1SGerd Hoffmann ep = usb_ep_get(dev, pid, endp); 14467ce86aa1SHans de Goede if (ep && ep->type == USB_ENDPOINT_XFER_ISOC) { 14478550a02dSGerd Hoffmann usb_packet_setup(&ehci->ipacket, pid, ep, 0, addr, false, 1448a6fb2ddbSHans de Goede (itd->transact[i] & ITD_XACT_IOC) != 0); 1449f1ae32a1SGerd Hoffmann usb_packet_map(&ehci->ipacket, &ehci->isgl); 14509a77a0f5SHans de Goede usb_handle_packet(dev, &ehci->ipacket); 1451e2f89926SDavid Gibson usb_packet_unmap(&ehci->ipacket, &ehci->isgl); 1452f1ae32a1SGerd Hoffmann } else { 1453f1ae32a1SGerd Hoffmann DPRINTF("ISOCH: attempt to addess non-iso endpoint\n"); 1454e696b1daSHans de Goede ehci->ipacket.status = USB_RET_NAK; 1455e696b1daSHans de Goede ehci->ipacket.actual_length = 0; 1456f1ae32a1SGerd Hoffmann } 1457f1ae32a1SGerd Hoffmann qemu_sglist_destroy(&ehci->isgl); 1458f1ae32a1SGerd Hoffmann 1459e696b1daSHans de Goede switch (ehci->ipacket.status) { 1460e696b1daSHans de Goede case USB_RET_SUCCESS: 1461e696b1daSHans de Goede break; 1462f1ae32a1SGerd Hoffmann default: 1463e696b1daSHans de Goede fprintf(stderr, "Unexpected iso usb result: %d\n", 1464e696b1daSHans de Goede ehci->ipacket.status); 1465f1ae32a1SGerd Hoffmann /* Fall through */ 1466f1ae32a1SGerd Hoffmann case USB_RET_IOERROR: 1467f1ae32a1SGerd Hoffmann case USB_RET_NODEV: 1468f1ae32a1SGerd Hoffmann /* 3.3.2: XACTERR is only allowed on IN transactions */ 1469f1ae32a1SGerd Hoffmann if (dir) { 1470f1ae32a1SGerd Hoffmann itd->transact[i] |= ITD_XACT_XACTERR; 14717efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_ERRINT); 1472f1ae32a1SGerd Hoffmann } 1473f1ae32a1SGerd Hoffmann break; 1474f1ae32a1SGerd Hoffmann case USB_RET_BABBLE: 1475f1ae32a1SGerd Hoffmann itd->transact[i] |= ITD_XACT_BABBLE; 14767efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_ERRINT); 1477f1ae32a1SGerd Hoffmann break; 1478f1ae32a1SGerd Hoffmann case USB_RET_NAK: 1479f1ae32a1SGerd Hoffmann /* no data for us, so do a zero-length transfer */ 1480e696b1daSHans de Goede ehci->ipacket.actual_length = 0; 1481f1ae32a1SGerd Hoffmann break; 1482f1ae32a1SGerd Hoffmann } 1483f1ae32a1SGerd Hoffmann if (!dir) { 1484e696b1daSHans de Goede set_field(&itd->transact[i], len - ehci->ipacket.actual_length, 1485e696b1daSHans de Goede ITD_XACT_LENGTH); /* OUT */ 1486f1ae32a1SGerd Hoffmann } else { 1487e696b1daSHans de Goede set_field(&itd->transact[i], ehci->ipacket.actual_length, 1488e696b1daSHans de Goede ITD_XACT_LENGTH); /* IN */ 1489f1ae32a1SGerd Hoffmann } 1490f1ae32a1SGerd Hoffmann if (itd->transact[i] & ITD_XACT_IOC) { 14917efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_INT); 1492f1ae32a1SGerd Hoffmann } 1493f1ae32a1SGerd Hoffmann itd->transact[i] &= ~ITD_XACT_ACTIVE; 1494f1ae32a1SGerd Hoffmann } 1495f1ae32a1SGerd Hoffmann } 1496a49923d2SGerd Hoffmann return 0; 1497f1ae32a1SGerd Hoffmann } 1498f1ae32a1SGerd Hoffmann 1499cd665715SGerd Hoffmann 1500f1ae32a1SGerd Hoffmann /* This state is the entry point for asynchronous schedule 1501f1ae32a1SGerd Hoffmann * processing. Entry here consitutes a EHCI start event state (4.8.5) 1502f1ae32a1SGerd Hoffmann */ 1503f1ae32a1SGerd Hoffmann static int ehci_state_waitlisthead(EHCIState *ehci, int async) 1504f1ae32a1SGerd Hoffmann { 1505f1ae32a1SGerd Hoffmann EHCIqh qh; 1506f1ae32a1SGerd Hoffmann int i = 0; 1507f1ae32a1SGerd Hoffmann int again = 0; 1508f1ae32a1SGerd Hoffmann uint32_t entry = ehci->asynclistaddr; 1509f1ae32a1SGerd Hoffmann 1510f1ae32a1SGerd Hoffmann /* set reclamation flag at start event (4.8.6) */ 1511f1ae32a1SGerd Hoffmann if (async) { 1512f1ae32a1SGerd Hoffmann ehci_set_usbsts(ehci, USBSTS_REC); 1513f1ae32a1SGerd Hoffmann } 1514f1ae32a1SGerd Hoffmann 15158f5457ebSHans de Goede ehci_queues_rip_unused(ehci, async); 1516f1ae32a1SGerd Hoffmann 1517f1ae32a1SGerd Hoffmann /* Find the head of the list (4.9.1.1) */ 1518f1ae32a1SGerd Hoffmann for(i = 0; i < MAX_QH; i++) { 151955903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &qh, 152055903f1dSGerd Hoffmann sizeof(EHCIqh) >> 2) < 0) { 152155903f1dSGerd Hoffmann return 0; 152255903f1dSGerd Hoffmann } 1523f1ae32a1SGerd Hoffmann ehci_trace_qh(NULL, NLPTR_GET(entry), &qh); 1524f1ae32a1SGerd Hoffmann 1525f1ae32a1SGerd Hoffmann if (qh.epchar & QH_EPCHAR_H) { 1526f1ae32a1SGerd Hoffmann if (async) { 1527f1ae32a1SGerd Hoffmann entry |= (NLPTR_TYPE_QH << 1); 1528f1ae32a1SGerd Hoffmann } 1529f1ae32a1SGerd Hoffmann 1530f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, entry); 1531f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1532f1ae32a1SGerd Hoffmann again = 1; 1533f1ae32a1SGerd Hoffmann goto out; 1534f1ae32a1SGerd Hoffmann } 1535f1ae32a1SGerd Hoffmann 1536f1ae32a1SGerd Hoffmann entry = qh.next; 1537f1ae32a1SGerd Hoffmann if (entry == ehci->asynclistaddr) { 1538f1ae32a1SGerd Hoffmann break; 1539f1ae32a1SGerd Hoffmann } 1540f1ae32a1SGerd Hoffmann } 1541f1ae32a1SGerd Hoffmann 1542f1ae32a1SGerd Hoffmann /* no head found for list. */ 1543f1ae32a1SGerd Hoffmann 1544f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1545f1ae32a1SGerd Hoffmann 1546f1ae32a1SGerd Hoffmann out: 1547f1ae32a1SGerd Hoffmann return again; 1548f1ae32a1SGerd Hoffmann } 1549f1ae32a1SGerd Hoffmann 1550f1ae32a1SGerd Hoffmann 1551f1ae32a1SGerd Hoffmann /* This state is the entry point for periodic schedule processing as 1552f1ae32a1SGerd Hoffmann * well as being a continuation state for async processing. 1553f1ae32a1SGerd Hoffmann */ 1554f1ae32a1SGerd Hoffmann static int ehci_state_fetchentry(EHCIState *ehci, int async) 1555f1ae32a1SGerd Hoffmann { 1556f1ae32a1SGerd Hoffmann int again = 0; 1557f1ae32a1SGerd Hoffmann uint32_t entry = ehci_get_fetch_addr(ehci, async); 1558f1ae32a1SGerd Hoffmann 1559f1ae32a1SGerd Hoffmann if (NLPTR_TBIT(entry)) { 1560f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1561f1ae32a1SGerd Hoffmann goto out; 1562f1ae32a1SGerd Hoffmann } 1563f1ae32a1SGerd Hoffmann 1564f1ae32a1SGerd Hoffmann /* section 4.8, only QH in async schedule */ 1565f1ae32a1SGerd Hoffmann if (async && (NLPTR_TYPE_GET(entry) != NLPTR_TYPE_QH)) { 1566f1ae32a1SGerd Hoffmann fprintf(stderr, "non queue head request in async schedule\n"); 1567f1ae32a1SGerd Hoffmann return -1; 1568f1ae32a1SGerd Hoffmann } 1569f1ae32a1SGerd Hoffmann 1570f1ae32a1SGerd Hoffmann switch (NLPTR_TYPE_GET(entry)) { 1571f1ae32a1SGerd Hoffmann case NLPTR_TYPE_QH: 1572f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHQH); 1573f1ae32a1SGerd Hoffmann again = 1; 1574f1ae32a1SGerd Hoffmann break; 1575f1ae32a1SGerd Hoffmann 1576f1ae32a1SGerd Hoffmann case NLPTR_TYPE_ITD: 1577f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHITD); 1578f1ae32a1SGerd Hoffmann again = 1; 1579f1ae32a1SGerd Hoffmann break; 1580f1ae32a1SGerd Hoffmann 1581f1ae32a1SGerd Hoffmann case NLPTR_TYPE_STITD: 1582f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHSITD); 1583f1ae32a1SGerd Hoffmann again = 1; 1584f1ae32a1SGerd Hoffmann break; 1585f1ae32a1SGerd Hoffmann 1586f1ae32a1SGerd Hoffmann default: 1587f1ae32a1SGerd Hoffmann /* TODO: handle FSTN type */ 1588f1ae32a1SGerd Hoffmann fprintf(stderr, "FETCHENTRY: entry at %X is of type %d " 1589f1ae32a1SGerd Hoffmann "which is not supported yet\n", entry, NLPTR_TYPE_GET(entry)); 1590f1ae32a1SGerd Hoffmann return -1; 1591f1ae32a1SGerd Hoffmann } 1592f1ae32a1SGerd Hoffmann 1593f1ae32a1SGerd Hoffmann out: 1594f1ae32a1SGerd Hoffmann return again; 1595f1ae32a1SGerd Hoffmann } 1596f1ae32a1SGerd Hoffmann 1597f1ae32a1SGerd Hoffmann static EHCIQueue *ehci_state_fetchqh(EHCIState *ehci, int async) 1598f1ae32a1SGerd Hoffmann { 1599c6432634SHans de Goede uint32_t entry; 1600f1ae32a1SGerd Hoffmann EHCIQueue *q; 1601dafe31fcSHans de Goede EHCIqh qh; 1602f1ae32a1SGerd Hoffmann 1603f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1604f1ae32a1SGerd Hoffmann q = ehci_find_queue_by_qh(ehci, entry, async); 1605d0657b2aSGonglei if (q == NULL) { 16068f6d5e26SGerd Hoffmann q = ehci_alloc_queue(ehci, entry, async); 1607f1ae32a1SGerd Hoffmann } 1608f1ae32a1SGerd Hoffmann 16098f6d5e26SGerd Hoffmann q->seen++; 1610f1ae32a1SGerd Hoffmann if (q->seen > 1) { 1611f1ae32a1SGerd Hoffmann /* we are going in circles -- stop processing */ 1612f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1613f1ae32a1SGerd Hoffmann q = NULL; 1614f1ae32a1SGerd Hoffmann goto out; 1615f1ae32a1SGerd Hoffmann } 1616f1ae32a1SGerd Hoffmann 161755903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(q->qhaddr), 161855903f1dSGerd Hoffmann (uint32_t *) &qh, sizeof(EHCIqh) >> 2) < 0) { 161955903f1dSGerd Hoffmann q = NULL; 162055903f1dSGerd Hoffmann goto out; 162155903f1dSGerd Hoffmann } 1622dafe31fcSHans de Goede ehci_trace_qh(q, NLPTR_GET(q->qhaddr), &qh); 1623f1ae32a1SGerd Hoffmann 1624dafe31fcSHans de Goede /* 1625dafe31fcSHans de Goede * The overlay area of the qh should never be changed by the guest, 1626dafe31fcSHans de Goede * except when idle, in which case the reset is a nop. 1627dafe31fcSHans de Goede */ 1628c6432634SHans de Goede if (!ehci_verify_qh(q, &qh)) { 16295c514681SGerd Hoffmann if (ehci_reset_queue(q) > 0) { 16305c514681SGerd Hoffmann ehci_trace_guest_bug(ehci, "guest updated active QH"); 16315c514681SGerd Hoffmann } 1632e59928b3SGerd Hoffmann } 1633dafe31fcSHans de Goede q->qh = qh; 1634dafe31fcSHans de Goede 1635cae5d3f4SHans de Goede q->transact_ctr = get_field(q->qh.epcap, QH_EPCAP_MULT); 1636cae5d3f4SHans de Goede if (q->transact_ctr == 0) { /* Guest bug in some versions of windows */ 1637cae5d3f4SHans de Goede q->transact_ctr = 4; 1638cae5d3f4SHans de Goede } 1639cae5d3f4SHans de Goede 1640e59928b3SGerd Hoffmann if (q->dev == NULL) { 1641c6432634SHans de Goede q->dev = ehci_find_device(q->ehci, 1642c6432634SHans de Goede get_field(q->qh.epchar, QH_EPCHAR_DEVADDR)); 1643e59928b3SGerd Hoffmann } 1644e59928b3SGerd Hoffmann 1645f1ae32a1SGerd Hoffmann if (async && (q->qh.epchar & QH_EPCHAR_H)) { 1646f1ae32a1SGerd Hoffmann 1647f1ae32a1SGerd Hoffmann /* EHCI spec version 1.0 Section 4.8.3 & 4.10.1 */ 1648f1ae32a1SGerd Hoffmann if (ehci->usbsts & USBSTS_REC) { 1649f1ae32a1SGerd Hoffmann ehci_clear_usbsts(ehci, USBSTS_REC); 1650f1ae32a1SGerd Hoffmann } else { 1651f1ae32a1SGerd Hoffmann DPRINTF("FETCHQH: QH 0x%08x. H-bit set, reclamation status reset" 1652f1ae32a1SGerd Hoffmann " - done processing\n", q->qhaddr); 1653f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1654f1ae32a1SGerd Hoffmann q = NULL; 1655f1ae32a1SGerd Hoffmann goto out; 1656f1ae32a1SGerd Hoffmann } 1657f1ae32a1SGerd Hoffmann } 1658f1ae32a1SGerd Hoffmann 1659f1ae32a1SGerd Hoffmann #if EHCI_DEBUG 1660f1ae32a1SGerd Hoffmann if (q->qhaddr != q->qh.next) { 1661f1ae32a1SGerd Hoffmann DPRINTF("FETCHQH: QH 0x%08x (h %x halt %x active %x) next 0x%08x\n", 1662f1ae32a1SGerd Hoffmann q->qhaddr, 1663f1ae32a1SGerd Hoffmann q->qh.epchar & QH_EPCHAR_H, 1664f1ae32a1SGerd Hoffmann q->qh.token & QTD_TOKEN_HALT, 1665f1ae32a1SGerd Hoffmann q->qh.token & QTD_TOKEN_ACTIVE, 1666f1ae32a1SGerd Hoffmann q->qh.next); 1667f1ae32a1SGerd Hoffmann } 1668f1ae32a1SGerd Hoffmann #endif 1669f1ae32a1SGerd Hoffmann 1670f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_HALT) { 1671f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_HORIZONTALQH); 1672f1ae32a1SGerd Hoffmann 1673f1ae32a1SGerd Hoffmann } else if ((q->qh.token & QTD_TOKEN_ACTIVE) && 1674f1ae32a1SGerd Hoffmann (NLPTR_TBIT(q->qh.current_qtd) == 0)) { 1675f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.current_qtd; 1676f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHQTD); 1677f1ae32a1SGerd Hoffmann 1678f1ae32a1SGerd Hoffmann } else { 1679f1ae32a1SGerd Hoffmann /* EHCI spec version 1.0 Section 4.10.2 */ 1680f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ADVANCEQUEUE); 1681f1ae32a1SGerd Hoffmann } 1682f1ae32a1SGerd Hoffmann 1683f1ae32a1SGerd Hoffmann out: 1684f1ae32a1SGerd Hoffmann return q; 1685f1ae32a1SGerd Hoffmann } 1686f1ae32a1SGerd Hoffmann 1687f1ae32a1SGerd Hoffmann static int ehci_state_fetchitd(EHCIState *ehci, int async) 1688f1ae32a1SGerd Hoffmann { 1689f1ae32a1SGerd Hoffmann uint32_t entry; 1690f1ae32a1SGerd Hoffmann EHCIitd itd; 1691f1ae32a1SGerd Hoffmann 1692f1ae32a1SGerd Hoffmann assert(!async); 1693f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1694f1ae32a1SGerd Hoffmann 169555903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd, 169655903f1dSGerd Hoffmann sizeof(EHCIitd) >> 2) < 0) { 169755903f1dSGerd Hoffmann return -1; 169855903f1dSGerd Hoffmann } 1699f1ae32a1SGerd Hoffmann ehci_trace_itd(ehci, entry, &itd); 1700f1ae32a1SGerd Hoffmann 1701e983395dSGerd Hoffmann if (ehci_process_itd(ehci, &itd, entry) != 0) { 1702f1ae32a1SGerd Hoffmann return -1; 1703f1ae32a1SGerd Hoffmann } 1704f1ae32a1SGerd Hoffmann 1705f1ae32a1SGerd Hoffmann put_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd, 1706f1ae32a1SGerd Hoffmann sizeof(EHCIitd) >> 2); 1707f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, itd.next); 1708f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1709f1ae32a1SGerd Hoffmann 1710f1ae32a1SGerd Hoffmann return 1; 1711f1ae32a1SGerd Hoffmann } 1712f1ae32a1SGerd Hoffmann 1713f1ae32a1SGerd Hoffmann static int ehci_state_fetchsitd(EHCIState *ehci, int async) 1714f1ae32a1SGerd Hoffmann { 1715f1ae32a1SGerd Hoffmann uint32_t entry; 1716f1ae32a1SGerd Hoffmann EHCIsitd sitd; 1717f1ae32a1SGerd Hoffmann 1718f1ae32a1SGerd Hoffmann assert(!async); 1719f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1720f1ae32a1SGerd Hoffmann 172155903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *)&sitd, 172255903f1dSGerd Hoffmann sizeof(EHCIsitd) >> 2) < 0) { 172355903f1dSGerd Hoffmann return 0; 172455903f1dSGerd Hoffmann } 1725f1ae32a1SGerd Hoffmann ehci_trace_sitd(ehci, entry, &sitd); 1726f1ae32a1SGerd Hoffmann 1727f1ae32a1SGerd Hoffmann if (!(sitd.results & SITD_RESULTS_ACTIVE)) { 1728f1ae32a1SGerd Hoffmann /* siTD is not active, nothing to do */; 1729f1ae32a1SGerd Hoffmann } else { 1730f1ae32a1SGerd Hoffmann /* TODO: split transfers are not implemented */ 1731f1ae32a1SGerd Hoffmann fprintf(stderr, "WARNING: Skipping active siTD\n"); 1732f1ae32a1SGerd Hoffmann } 1733f1ae32a1SGerd Hoffmann 1734f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, sitd.next); 1735f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1736f1ae32a1SGerd Hoffmann return 1; 1737f1ae32a1SGerd Hoffmann } 1738f1ae32a1SGerd Hoffmann 1739f1ae32a1SGerd Hoffmann /* Section 4.10.2 - paragraph 3 */ 1740ae0138a8SGerd Hoffmann static int ehci_state_advqueue(EHCIQueue *q) 1741f1ae32a1SGerd Hoffmann { 1742f1ae32a1SGerd Hoffmann #if 0 1743f1ae32a1SGerd Hoffmann /* TO-DO: 4.10.2 - paragraph 2 1744f1ae32a1SGerd Hoffmann * if I-bit is set to 1 and QH is not active 1745f1ae32a1SGerd Hoffmann * go to horizontal QH 1746f1ae32a1SGerd Hoffmann */ 1747f1ae32a1SGerd Hoffmann if (I-bit set) { 1748f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_HORIZONTALQH); 1749f1ae32a1SGerd Hoffmann goto out; 1750f1ae32a1SGerd Hoffmann } 1751f1ae32a1SGerd Hoffmann #endif 1752f1ae32a1SGerd Hoffmann 1753f1ae32a1SGerd Hoffmann /* 1754f1ae32a1SGerd Hoffmann * want data and alt-next qTD is valid 1755f1ae32a1SGerd Hoffmann */ 1756f1ae32a1SGerd Hoffmann if (((q->qh.token & QTD_TOKEN_TBYTES_MASK) != 0) && 1757f1ae32a1SGerd Hoffmann (NLPTR_TBIT(q->qh.altnext_qtd) == 0)) { 1758f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.altnext_qtd; 1759ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHQTD); 1760f1ae32a1SGerd Hoffmann 1761f1ae32a1SGerd Hoffmann /* 1762f1ae32a1SGerd Hoffmann * next qTD is valid 1763f1ae32a1SGerd Hoffmann */ 1764f1ae32a1SGerd Hoffmann } else if (NLPTR_TBIT(q->qh.next_qtd) == 0) { 1765f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.next_qtd; 1766ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHQTD); 1767f1ae32a1SGerd Hoffmann 1768f1ae32a1SGerd Hoffmann /* 1769f1ae32a1SGerd Hoffmann * no valid qTD, try next QH 1770f1ae32a1SGerd Hoffmann */ 1771f1ae32a1SGerd Hoffmann } else { 1772ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1773f1ae32a1SGerd Hoffmann } 1774f1ae32a1SGerd Hoffmann 1775f1ae32a1SGerd Hoffmann return 1; 1776f1ae32a1SGerd Hoffmann } 1777f1ae32a1SGerd Hoffmann 1778f1ae32a1SGerd Hoffmann /* Section 4.10.2 - paragraph 4 */ 1779ae0138a8SGerd Hoffmann static int ehci_state_fetchqtd(EHCIQueue *q) 1780f1ae32a1SGerd Hoffmann { 1781eb36a88eSGerd Hoffmann EHCIqtd qtd; 1782eb36a88eSGerd Hoffmann EHCIPacket *p; 1783b4ea8664SHans de Goede int again = 1; 1784f1ae32a1SGerd Hoffmann 178555903f1dSGerd Hoffmann if (get_dwords(q->ehci, NLPTR_GET(q->qtdaddr), (uint32_t *) &qtd, 178655903f1dSGerd Hoffmann sizeof(EHCIqtd) >> 2) < 0) { 178755903f1dSGerd Hoffmann return 0; 178855903f1dSGerd Hoffmann } 1789eb36a88eSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(q->qtdaddr), &qtd); 1790f1ae32a1SGerd Hoffmann 1791773dc9cdSGerd Hoffmann p = QTAILQ_FIRST(&q->packets); 1792287fd3f1SGerd Hoffmann if (p != NULL) { 1793c6432634SHans de Goede if (!ehci_verify_qtd(p, &qtd)) { 1794287fd3f1SGerd Hoffmann ehci_cancel_queue(q); 1795d066c57bSHans de Goede if (qtd.token & QTD_TOKEN_ACTIVE) { 1796d066c57bSHans de Goede ehci_trace_guest_bug(q->ehci, "guest updated active qTD"); 1797d066c57bSHans de Goede } 1798287fd3f1SGerd Hoffmann p = NULL; 1799287fd3f1SGerd Hoffmann } else { 1800287fd3f1SGerd Hoffmann p->qtd = qtd; 1801287fd3f1SGerd Hoffmann ehci_qh_do_overlay(q); 1802287fd3f1SGerd Hoffmann } 1803287fd3f1SGerd Hoffmann } 1804287fd3f1SGerd Hoffmann 1805287fd3f1SGerd Hoffmann if (!(qtd.token & QTD_TOKEN_ACTIVE)) { 1806287fd3f1SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1807287fd3f1SGerd Hoffmann } else if (p != NULL) { 1808adf47834SHans de Goede switch (p->async) { 1809adf47834SHans de Goede case EHCI_ASYNC_NONE: 1810ef5b2344SHans de Goede case EHCI_ASYNC_INITIALIZED: 1811cae5d3f4SHans de Goede /* Not yet executed (MULT), or previously nacked (int) packet */ 1812adf47834SHans de Goede ehci_set_state(q->ehci, q->async, EST_EXECUTE); 1813adf47834SHans de Goede break; 1814adf47834SHans de Goede case EHCI_ASYNC_INFLIGHT: 1815b4ea8664SHans de Goede /* Check if the guest has added new tds to the queue */ 181601e26b0eSHans de Goede again = ehci_fill_queue(QTAILQ_LAST(&q->packets, pkts_head)); 1817ef5b2344SHans de Goede /* Unfinished async handled packet, go horizontal */ 1818ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1819adf47834SHans de Goede break; 1820adf47834SHans de Goede case EHCI_ASYNC_FINISHED: 1821e3fdfd48SHans de Goede /* Complete executing of the packet */ 1822ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTING); 1823adf47834SHans de Goede break; 1824773dc9cdSGerd Hoffmann } 1825287fd3f1SGerd Hoffmann } else { 1826eb36a88eSGerd Hoffmann p = ehci_alloc_packet(q); 1827eb36a88eSGerd Hoffmann p->qtdaddr = q->qtdaddr; 1828eb36a88eSGerd Hoffmann p->qtd = qtd; 1829ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTE); 1830f1ae32a1SGerd Hoffmann } 1831f1ae32a1SGerd Hoffmann 1832f1ae32a1SGerd Hoffmann return again; 1833f1ae32a1SGerd Hoffmann } 1834f1ae32a1SGerd Hoffmann 1835ae0138a8SGerd Hoffmann static int ehci_state_horizqh(EHCIQueue *q) 1836f1ae32a1SGerd Hoffmann { 1837f1ae32a1SGerd Hoffmann int again = 0; 1838f1ae32a1SGerd Hoffmann 1839ae0138a8SGerd Hoffmann if (ehci_get_fetch_addr(q->ehci, q->async) != q->qh.next) { 1840ae0138a8SGerd Hoffmann ehci_set_fetch_addr(q->ehci, q->async, q->qh.next); 1841ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHENTRY); 1842f1ae32a1SGerd Hoffmann again = 1; 1843f1ae32a1SGerd Hoffmann } else { 1844ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_ACTIVE); 1845f1ae32a1SGerd Hoffmann } 1846f1ae32a1SGerd Hoffmann 1847f1ae32a1SGerd Hoffmann return again; 1848f1ae32a1SGerd Hoffmann } 1849f1ae32a1SGerd Hoffmann 185001e26b0eSHans de Goede /* Returns "again" */ 1851eff6dce7SHans de Goede static int ehci_fill_queue(EHCIPacket *p) 1852773dc9cdSGerd Hoffmann { 185336dfe324SHans de Goede USBEndpoint *ep = p->packet.ep; 1854773dc9cdSGerd Hoffmann EHCIQueue *q = p->queue; 1855773dc9cdSGerd Hoffmann EHCIqtd qtd = p->qtd; 1856601a2347SHans de Goede uint32_t qtdaddr; 1857773dc9cdSGerd Hoffmann 1858773dc9cdSGerd Hoffmann for (;;) { 1859773dc9cdSGerd Hoffmann if (NLPTR_TBIT(qtd.next) != 0) { 1860773dc9cdSGerd Hoffmann break; 1861773dc9cdSGerd Hoffmann } 1862773dc9cdSGerd Hoffmann qtdaddr = qtd.next; 1863e3a36bceSHans de Goede /* 1864e3a36bceSHans de Goede * Detect circular td lists, Windows creates these, counting on the 1865e3a36bceSHans de Goede * active bit going low after execution to make the queue stop. 1866e3a36bceSHans de Goede */ 1867601a2347SHans de Goede QTAILQ_FOREACH(p, &q->packets, next) { 1868601a2347SHans de Goede if (p->qtdaddr == qtdaddr) { 1869601a2347SHans de Goede goto leave; 1870601a2347SHans de Goede } 1871e3a36bceSHans de Goede } 187255903f1dSGerd Hoffmann if (get_dwords(q->ehci, NLPTR_GET(qtdaddr), 187355903f1dSGerd Hoffmann (uint32_t *) &qtd, sizeof(EHCIqtd) >> 2) < 0) { 187455903f1dSGerd Hoffmann return -1; 187555903f1dSGerd Hoffmann } 1876773dc9cdSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(qtdaddr), &qtd); 1877773dc9cdSGerd Hoffmann if (!(qtd.token & QTD_TOKEN_ACTIVE)) { 1878773dc9cdSGerd Hoffmann break; 1879773dc9cdSGerd Hoffmann } 1880bbbc39ccSHans de Goede if (!ehci_verify_pid(q, &qtd)) { 1881bbbc39ccSHans de Goede ehci_trace_guest_bug(q->ehci, "guest queued token with wrong pid"); 1882bbbc39ccSHans de Goede break; 1883bbbc39ccSHans de Goede } 1884773dc9cdSGerd Hoffmann p = ehci_alloc_packet(q); 1885773dc9cdSGerd Hoffmann p->qtdaddr = qtdaddr; 1886773dc9cdSGerd Hoffmann p->qtd = qtd; 188701e26b0eSHans de Goede if (ehci_execute(p, "queue") == -1) { 188801e26b0eSHans de Goede return -1; 1889eff6dce7SHans de Goede } 189001e26b0eSHans de Goede assert(p->packet.status == USB_RET_ASYNC); 1891773dc9cdSGerd Hoffmann p->async = EHCI_ASYNC_INFLIGHT; 1892773dc9cdSGerd Hoffmann } 1893601a2347SHans de Goede leave: 189436dfe324SHans de Goede usb_device_flush_ep_queue(ep->dev, ep); 189501e26b0eSHans de Goede return 1; 1896773dc9cdSGerd Hoffmann } 1897773dc9cdSGerd Hoffmann 1898ae0138a8SGerd Hoffmann static int ehci_state_execute(EHCIQueue *q) 1899f1ae32a1SGerd Hoffmann { 1900eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1901f1ae32a1SGerd Hoffmann int again = 0; 1902f1ae32a1SGerd Hoffmann 1903eb36a88eSGerd Hoffmann assert(p != NULL); 1904eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1905eb36a88eSGerd Hoffmann 1906f1ae32a1SGerd Hoffmann if (ehci_qh_do_overlay(q) != 0) { 1907f1ae32a1SGerd Hoffmann return -1; 1908f1ae32a1SGerd Hoffmann } 1909f1ae32a1SGerd Hoffmann 1910f1ae32a1SGerd Hoffmann // TODO verify enough time remains in the uframe as in 4.4.1.1 1911f1ae32a1SGerd Hoffmann // TODO write back ptr to async list when done or out of time 1912f1ae32a1SGerd Hoffmann 1913cae5d3f4SHans de Goede /* 4.10.3, bottom of page 82, go horizontal on transaction counter == 0 */ 1914cae5d3f4SHans de Goede if (!q->async && q->transact_ctr == 0) { 1915ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1916f1ae32a1SGerd Hoffmann again = 1; 1917f1ae32a1SGerd Hoffmann goto out; 1918f1ae32a1SGerd Hoffmann } 1919f1ae32a1SGerd Hoffmann 1920ae0138a8SGerd Hoffmann if (q->async) { 1921f1ae32a1SGerd Hoffmann ehci_set_usbsts(q->ehci, USBSTS_REC); 1922f1ae32a1SGerd Hoffmann } 1923f1ae32a1SGerd Hoffmann 192401e26b0eSHans de Goede again = ehci_execute(p, "process"); 192501e26b0eSHans de Goede if (again == -1) { 1926f1ae32a1SGerd Hoffmann goto out; 1927f1ae32a1SGerd Hoffmann } 192801e26b0eSHans de Goede if (p->packet.status == USB_RET_ASYNC) { 1929f1ae32a1SGerd Hoffmann ehci_flush_qh(q); 1930773dc9cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "async"); 1931eb36a88eSGerd Hoffmann p->async = EHCI_ASYNC_INFLIGHT; 1932ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1933cae5d3f4SHans de Goede if (q->async) { 193401e26b0eSHans de Goede again = ehci_fill_queue(p); 1935cae5d3f4SHans de Goede } else { 1936cae5d3f4SHans de Goede again = 1; 1937cae5d3f4SHans de Goede } 1938f1ae32a1SGerd Hoffmann goto out; 1939f1ae32a1SGerd Hoffmann } 1940f1ae32a1SGerd Hoffmann 1941ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTING); 1942f1ae32a1SGerd Hoffmann again = 1; 1943f1ae32a1SGerd Hoffmann 1944f1ae32a1SGerd Hoffmann out: 1945f1ae32a1SGerd Hoffmann return again; 1946f1ae32a1SGerd Hoffmann } 1947f1ae32a1SGerd Hoffmann 1948ae0138a8SGerd Hoffmann static int ehci_state_executing(EHCIQueue *q) 1949f1ae32a1SGerd Hoffmann { 1950eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1951f1ae32a1SGerd Hoffmann 1952eb36a88eSGerd Hoffmann assert(p != NULL); 1953eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1954eb36a88eSGerd Hoffmann 1955f1ae32a1SGerd Hoffmann ehci_execute_complete(q); 1956f1ae32a1SGerd Hoffmann 1957cae5d3f4SHans de Goede /* 4.10.3 */ 1958cae5d3f4SHans de Goede if (!q->async && q->transact_ctr > 0) { 1959cae5d3f4SHans de Goede q->transact_ctr--; 1960f1ae32a1SGerd Hoffmann } 1961f1ae32a1SGerd Hoffmann 1962f1ae32a1SGerd Hoffmann /* 4.10.5 */ 1963e696b1daSHans de Goede if (p->packet.status == USB_RET_NAK) { 1964ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1965f1ae32a1SGerd Hoffmann } else { 1966ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_WRITEBACK); 1967f1ae32a1SGerd Hoffmann } 1968f1ae32a1SGerd Hoffmann 1969f1ae32a1SGerd Hoffmann ehci_flush_qh(q); 1970574ef171SHans de Goede return 1; 1971f1ae32a1SGerd Hoffmann } 1972f1ae32a1SGerd Hoffmann 1973f1ae32a1SGerd Hoffmann 1974ae0138a8SGerd Hoffmann static int ehci_state_writeback(EHCIQueue *q) 1975f1ae32a1SGerd Hoffmann { 1976eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 19774ed1c57aSGerd Hoffmann uint32_t *qtd, addr; 1978f1ae32a1SGerd Hoffmann int again = 0; 1979f1ae32a1SGerd Hoffmann 1980f1ae32a1SGerd Hoffmann /* Write back the QTD from the QH area */ 1981eb36a88eSGerd Hoffmann assert(p != NULL); 1982eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1983eb36a88eSGerd Hoffmann 1984eb36a88eSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(p->qtdaddr), (EHCIqtd *) &q->qh.next_qtd); 19854ed1c57aSGerd Hoffmann qtd = (uint32_t *) &q->qh.next_qtd; 19864ed1c57aSGerd Hoffmann addr = NLPTR_GET(p->qtdaddr); 19874ed1c57aSGerd Hoffmann put_dwords(q->ehci, addr + 2 * sizeof(uint32_t), qtd + 2, 2); 1988eb36a88eSGerd Hoffmann ehci_free_packet(p); 1989f1ae32a1SGerd Hoffmann 1990f1ae32a1SGerd Hoffmann /* 1991f1ae32a1SGerd Hoffmann * EHCI specs say go horizontal here. 1992f1ae32a1SGerd Hoffmann * 1993f1ae32a1SGerd Hoffmann * We can also advance the queue here for performance reasons. We 1994f1ae32a1SGerd Hoffmann * need to take care to only take that shortcut in case we've 1995f1ae32a1SGerd Hoffmann * processed the qtd just written back without errors, i.e. halt 1996f1ae32a1SGerd Hoffmann * bit is clear. 1997f1ae32a1SGerd Hoffmann */ 1998f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_HALT) { 1999ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 2000f1ae32a1SGerd Hoffmann again = 1; 2001f1ae32a1SGerd Hoffmann } else { 2002ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_ADVANCEQUEUE); 2003f1ae32a1SGerd Hoffmann again = 1; 2004f1ae32a1SGerd Hoffmann } 2005f1ae32a1SGerd Hoffmann return again; 2006f1ae32a1SGerd Hoffmann } 2007f1ae32a1SGerd Hoffmann 2008f1ae32a1SGerd Hoffmann /* 2009f1ae32a1SGerd Hoffmann * This is the state machine that is common to both async and periodic 2010f1ae32a1SGerd Hoffmann */ 2011f1ae32a1SGerd Hoffmann 2012ae0138a8SGerd Hoffmann static void ehci_advance_state(EHCIState *ehci, int async) 2013f1ae32a1SGerd Hoffmann { 2014f1ae32a1SGerd Hoffmann EHCIQueue *q = NULL; 20151ae3f2f1SGerd Hoffmann int itd_count = 0; 2016f1ae32a1SGerd Hoffmann int again; 2017f1ae32a1SGerd Hoffmann 2018f1ae32a1SGerd Hoffmann do { 2019f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2020f1ae32a1SGerd Hoffmann case EST_WAITLISTHEAD: 2021f1ae32a1SGerd Hoffmann again = ehci_state_waitlisthead(ehci, async); 2022f1ae32a1SGerd Hoffmann break; 2023f1ae32a1SGerd Hoffmann 2024f1ae32a1SGerd Hoffmann case EST_FETCHENTRY: 2025f1ae32a1SGerd Hoffmann again = ehci_state_fetchentry(ehci, async); 2026f1ae32a1SGerd Hoffmann break; 2027f1ae32a1SGerd Hoffmann 2028f1ae32a1SGerd Hoffmann case EST_FETCHQH: 2029f1ae32a1SGerd Hoffmann q = ehci_state_fetchqh(ehci, async); 2030ae0138a8SGerd Hoffmann if (q != NULL) { 2031ae0138a8SGerd Hoffmann assert(q->async == async); 2032ae0138a8SGerd Hoffmann again = 1; 2033ae0138a8SGerd Hoffmann } else { 2034ae0138a8SGerd Hoffmann again = 0; 2035ae0138a8SGerd Hoffmann } 2036f1ae32a1SGerd Hoffmann break; 2037f1ae32a1SGerd Hoffmann 2038f1ae32a1SGerd Hoffmann case EST_FETCHITD: 2039f1ae32a1SGerd Hoffmann again = ehci_state_fetchitd(ehci, async); 20401ae3f2f1SGerd Hoffmann itd_count++; 2041f1ae32a1SGerd Hoffmann break; 2042f1ae32a1SGerd Hoffmann 2043f1ae32a1SGerd Hoffmann case EST_FETCHSITD: 2044f1ae32a1SGerd Hoffmann again = ehci_state_fetchsitd(ehci, async); 20451ae3f2f1SGerd Hoffmann itd_count++; 2046f1ae32a1SGerd Hoffmann break; 2047f1ae32a1SGerd Hoffmann 2048f1ae32a1SGerd Hoffmann case EST_ADVANCEQUEUE: 2049cc8d2b65SMarkus Armbruster assert(q != NULL); 2050ae0138a8SGerd Hoffmann again = ehci_state_advqueue(q); 2051f1ae32a1SGerd Hoffmann break; 2052f1ae32a1SGerd Hoffmann 2053f1ae32a1SGerd Hoffmann case EST_FETCHQTD: 2054cc8d2b65SMarkus Armbruster assert(q != NULL); 2055ae0138a8SGerd Hoffmann again = ehci_state_fetchqtd(q); 2056f1ae32a1SGerd Hoffmann break; 2057f1ae32a1SGerd Hoffmann 2058f1ae32a1SGerd Hoffmann case EST_HORIZONTALQH: 2059cc8d2b65SMarkus Armbruster assert(q != NULL); 2060ae0138a8SGerd Hoffmann again = ehci_state_horizqh(q); 2061f1ae32a1SGerd Hoffmann break; 2062f1ae32a1SGerd Hoffmann 2063f1ae32a1SGerd Hoffmann case EST_EXECUTE: 2064cc8d2b65SMarkus Armbruster assert(q != NULL); 2065ae0138a8SGerd Hoffmann again = ehci_state_execute(q); 20663a215326SGerd Hoffmann if (async) { 20673a215326SGerd Hoffmann ehci->async_stepdown = 0; 20683a215326SGerd Hoffmann } 2069f1ae32a1SGerd Hoffmann break; 2070f1ae32a1SGerd Hoffmann 2071f1ae32a1SGerd Hoffmann case EST_EXECUTING: 2072f1ae32a1SGerd Hoffmann assert(q != NULL); 20733a215326SGerd Hoffmann if (async) { 20743a215326SGerd Hoffmann ehci->async_stepdown = 0; 20753a215326SGerd Hoffmann } 2076ae0138a8SGerd Hoffmann again = ehci_state_executing(q); 2077f1ae32a1SGerd Hoffmann break; 2078f1ae32a1SGerd Hoffmann 2079f1ae32a1SGerd Hoffmann case EST_WRITEBACK: 2080f1ae32a1SGerd Hoffmann assert(q != NULL); 2081ae0138a8SGerd Hoffmann again = ehci_state_writeback(q); 208280826240SHans de Goede if (!async) { 208380826240SHans de Goede ehci->periodic_sched_active = PERIODIC_ACTIVE; 208480826240SHans de Goede } 2085f1ae32a1SGerd Hoffmann break; 2086f1ae32a1SGerd Hoffmann 2087f1ae32a1SGerd Hoffmann default: 2088f1ae32a1SGerd Hoffmann fprintf(stderr, "Bad state!\n"); 2089f1ae32a1SGerd Hoffmann again = -1; 2090dfc6f865SStefan Weil g_assert_not_reached(); 2091f1ae32a1SGerd Hoffmann break; 2092f1ae32a1SGerd Hoffmann } 2093f1ae32a1SGerd Hoffmann 20941ae3f2f1SGerd Hoffmann if (again < 0 || itd_count > 16) { 20951ae3f2f1SGerd Hoffmann /* TODO: notify guest (raise HSE irq?) */ 2096f1ae32a1SGerd Hoffmann fprintf(stderr, "processing error - resetting ehci HC\n"); 2097f1ae32a1SGerd Hoffmann ehci_reset(ehci); 2098f1ae32a1SGerd Hoffmann again = 0; 2099f1ae32a1SGerd Hoffmann } 2100f1ae32a1SGerd Hoffmann } 2101f1ae32a1SGerd Hoffmann while (again); 2102f1ae32a1SGerd Hoffmann } 2103f1ae32a1SGerd Hoffmann 2104f1ae32a1SGerd Hoffmann static void ehci_advance_async_state(EHCIState *ehci) 2105f1ae32a1SGerd Hoffmann { 2106f1ae32a1SGerd Hoffmann const int async = 1; 2107f1ae32a1SGerd Hoffmann 2108f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2109f1ae32a1SGerd Hoffmann case EST_INACTIVE: 2110ec807d12SGerd Hoffmann if (!ehci_async_enabled(ehci)) { 2111f1ae32a1SGerd Hoffmann break; 2112f1ae32a1SGerd Hoffmann } 2113f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 2114f1ae32a1SGerd Hoffmann // No break, fall through to ACTIVE 2115f1ae32a1SGerd Hoffmann 2116f1ae32a1SGerd Hoffmann case EST_ACTIVE: 2117ec807d12SGerd Hoffmann if (!ehci_async_enabled(ehci)) { 2118f1ae32a1SGerd Hoffmann ehci_queues_rip_all(ehci, async); 2119f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_INACTIVE); 2120f1ae32a1SGerd Hoffmann break; 2121f1ae32a1SGerd Hoffmann } 2122f1ae32a1SGerd Hoffmann 2123f1ae32a1SGerd Hoffmann /* make sure guest has acknowledged the doorbell interrupt */ 2124f1ae32a1SGerd Hoffmann /* TO-DO: is this really needed? */ 2125f1ae32a1SGerd Hoffmann if (ehci->usbsts & USBSTS_IAA) { 2126f1ae32a1SGerd Hoffmann DPRINTF("IAA status bit still set.\n"); 2127f1ae32a1SGerd Hoffmann break; 2128f1ae32a1SGerd Hoffmann } 2129f1ae32a1SGerd Hoffmann 2130f1ae32a1SGerd Hoffmann /* check that address register has been set */ 2131f1ae32a1SGerd Hoffmann if (ehci->asynclistaddr == 0) { 2132f1ae32a1SGerd Hoffmann break; 2133f1ae32a1SGerd Hoffmann } 2134f1ae32a1SGerd Hoffmann 2135f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_WAITLISTHEAD); 2136f1ae32a1SGerd Hoffmann ehci_advance_state(ehci, async); 2137f1ae32a1SGerd Hoffmann 2138f1ae32a1SGerd Hoffmann /* If the doorbell is set, the guest wants to make a change to the 2139f1ae32a1SGerd Hoffmann * schedule. The host controller needs to release cached data. 2140f1ae32a1SGerd Hoffmann * (section 4.8.2) 2141f1ae32a1SGerd Hoffmann */ 2142f1ae32a1SGerd Hoffmann if (ehci->usbcmd & USBCMD_IAAD) { 2143f1ae32a1SGerd Hoffmann /* Remove all unseen qhs from the async qhs queue */ 21448f5457ebSHans de Goede ehci_queues_rip_unseen(ehci, async); 21451defcbd1SGerd Hoffmann trace_usb_ehci_doorbell_ack(); 2146f1ae32a1SGerd Hoffmann ehci->usbcmd &= ~USBCMD_IAAD; 21477efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_IAA); 2148f1ae32a1SGerd Hoffmann } 2149f1ae32a1SGerd Hoffmann break; 2150f1ae32a1SGerd Hoffmann 2151f1ae32a1SGerd Hoffmann default: 2152f1ae32a1SGerd Hoffmann /* this should only be due to a developer mistake */ 2153f1ae32a1SGerd Hoffmann fprintf(stderr, "ehci: Bad asynchronous state %d. " 2154f1ae32a1SGerd Hoffmann "Resetting to active\n", ehci->astate); 2155dfc6f865SStefan Weil g_assert_not_reached(); 2156f1ae32a1SGerd Hoffmann } 2157f1ae32a1SGerd Hoffmann } 2158f1ae32a1SGerd Hoffmann 2159f1ae32a1SGerd Hoffmann static void ehci_advance_periodic_state(EHCIState *ehci) 2160f1ae32a1SGerd Hoffmann { 2161f1ae32a1SGerd Hoffmann uint32_t entry; 2162f1ae32a1SGerd Hoffmann uint32_t list; 2163f1ae32a1SGerd Hoffmann const int async = 0; 2164f1ae32a1SGerd Hoffmann 2165f1ae32a1SGerd Hoffmann // 4.6 2166f1ae32a1SGerd Hoffmann 2167f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2168f1ae32a1SGerd Hoffmann case EST_INACTIVE: 2169ec807d12SGerd Hoffmann if (!(ehci->frindex & 7) && ehci_periodic_enabled(ehci)) { 2170f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 2171f1ae32a1SGerd Hoffmann // No break, fall through to ACTIVE 2172f1ae32a1SGerd Hoffmann } else 2173f1ae32a1SGerd Hoffmann break; 2174f1ae32a1SGerd Hoffmann 2175f1ae32a1SGerd Hoffmann case EST_ACTIVE: 2176ec807d12SGerd Hoffmann if (!(ehci->frindex & 7) && !ehci_periodic_enabled(ehci)) { 2177f1ae32a1SGerd Hoffmann ehci_queues_rip_all(ehci, async); 2178f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_INACTIVE); 2179f1ae32a1SGerd Hoffmann break; 2180f1ae32a1SGerd Hoffmann } 2181f1ae32a1SGerd Hoffmann 2182f1ae32a1SGerd Hoffmann list = ehci->periodiclistbase & 0xfffff000; 2183f1ae32a1SGerd Hoffmann /* check that register has been set */ 2184f1ae32a1SGerd Hoffmann if (list == 0) { 2185f1ae32a1SGerd Hoffmann break; 2186f1ae32a1SGerd Hoffmann } 2187f1ae32a1SGerd Hoffmann list |= ((ehci->frindex & 0x1ff8) >> 1); 2188f1ae32a1SGerd Hoffmann 218955903f1dSGerd Hoffmann if (get_dwords(ehci, list, &entry, 1) < 0) { 219055903f1dSGerd Hoffmann break; 219155903f1dSGerd Hoffmann } 2192f1ae32a1SGerd Hoffmann 2193f1ae32a1SGerd Hoffmann DPRINTF("PERIODIC state adv fr=%d. [%08X] -> %08X\n", 2194f1ae32a1SGerd Hoffmann ehci->frindex / 8, list, entry); 2195f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async,entry); 2196f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 2197f1ae32a1SGerd Hoffmann ehci_advance_state(ehci, async); 21988f5457ebSHans de Goede ehci_queues_rip_unused(ehci, async); 2199f1ae32a1SGerd Hoffmann break; 2200f1ae32a1SGerd Hoffmann 2201f1ae32a1SGerd Hoffmann default: 2202f1ae32a1SGerd Hoffmann /* this should only be due to a developer mistake */ 2203f1ae32a1SGerd Hoffmann fprintf(stderr, "ehci: Bad periodic state %d. " 2204f1ae32a1SGerd Hoffmann "Resetting to active\n", ehci->pstate); 2205dfc6f865SStefan Weil g_assert_not_reached(); 2206f1ae32a1SGerd Hoffmann } 2207f1ae32a1SGerd Hoffmann } 2208f1ae32a1SGerd Hoffmann 22099359a58bSHans de Goede static void ehci_update_frindex(EHCIState *ehci, int uframes) 22106ceced0bSGerd Hoffmann { 22119359a58bSHans de Goede if (!ehci_enabled(ehci) && ehci->pstate == EST_INACTIVE) { 22126ceced0bSGerd Hoffmann return; 22136ceced0bSGerd Hoffmann } 22146ceced0bSGerd Hoffmann 221572aa364bSEvgeny Yakovlev /* Generate FLR interrupt if frame index rolls over 0x2000 */ 221672aa364bSEvgeny Yakovlev if ((ehci->frindex % 0x2000) + uframes >= 0x2000) { 22177efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_FLR); 22186ceced0bSGerd Hoffmann } 22196ceced0bSGerd Hoffmann 222072aa364bSEvgeny Yakovlev /* How many times will frindex roll over 0x4000 with this frame count? 222172aa364bSEvgeny Yakovlev * usbsts_frindex is decremented by 0x4000 on rollover until it reaches 0 222272aa364bSEvgeny Yakovlev */ 222372aa364bSEvgeny Yakovlev int rollovers = (ehci->frindex + uframes) / 0x4000; 222472aa364bSEvgeny Yakovlev if (rollovers > 0) { 222572aa364bSEvgeny Yakovlev if (ehci->usbsts_frindex >= (rollovers * 0x4000)) { 222672aa364bSEvgeny Yakovlev ehci->usbsts_frindex -= 0x4000 * rollovers; 22277efc17afSGerd Hoffmann } else { 22287efc17afSGerd Hoffmann ehci->usbsts_frindex = 0; 22297efc17afSGerd Hoffmann } 22306ceced0bSGerd Hoffmann } 223172aa364bSEvgeny Yakovlev 223272aa364bSEvgeny Yakovlev ehci->frindex = (ehci->frindex + uframes) % 0x4000; 22336ceced0bSGerd Hoffmann } 22346ceced0bSGerd Hoffmann 2235f1ae32a1SGerd Hoffmann static void ehci_frame_timer(void *opaque) 2236f1ae32a1SGerd Hoffmann { 2237f1ae32a1SGerd Hoffmann EHCIState *ehci = opaque; 22387efc17afSGerd Hoffmann int need_timer = 0; 2239f1ae32a1SGerd Hoffmann int64_t expire_time, t_now; 2240f1ae32a1SGerd Hoffmann uint64_t ns_elapsed; 22419359a58bSHans de Goede int uframes, skipped_uframes; 2242f1ae32a1SGerd Hoffmann int i; 2243f1ae32a1SGerd Hoffmann 2244bc72ad67SAlex Bligh t_now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 2245f1ae32a1SGerd Hoffmann ns_elapsed = t_now - ehci->last_run_ns; 22469359a58bSHans de Goede uframes = ns_elapsed / UFRAME_TIMER_NS; 2247f1ae32a1SGerd Hoffmann 22483a215326SGerd Hoffmann if (ehci_periodic_enabled(ehci) || ehci->pstate != EST_INACTIVE) { 22497efc17afSGerd Hoffmann need_timer++; 22503a215326SGerd Hoffmann 22519359a58bSHans de Goede if (uframes > (ehci->maxframes * 8)) { 22529359a58bSHans de Goede skipped_uframes = uframes - (ehci->maxframes * 8); 22539359a58bSHans de Goede ehci_update_frindex(ehci, skipped_uframes); 22549359a58bSHans de Goede ehci->last_run_ns += UFRAME_TIMER_NS * skipped_uframes; 22559359a58bSHans de Goede uframes -= skipped_uframes; 22569359a58bSHans de Goede DPRINTF("WARNING - EHCI skipped %d uframes\n", skipped_uframes); 2257f1ae32a1SGerd Hoffmann } 2258f1ae32a1SGerd Hoffmann 22599359a58bSHans de Goede for (i = 0; i < uframes; i++) { 22608f74ed1eSHans de Goede /* 22618f74ed1eSHans de Goede * If we're running behind schedule, we should not catch up 22628f74ed1eSHans de Goede * too fast, as that will make some guests unhappy: 22639359a58bSHans de Goede * 1) We must process a minimum of MIN_UFR_PER_TICK frames, 22648f74ed1eSHans de Goede * otherwise we will never catch up 22658f74ed1eSHans de Goede * 2) Process frames until the guest has requested an irq (IOC) 22668f74ed1eSHans de Goede */ 22679359a58bSHans de Goede if (i >= MIN_UFR_PER_TICK) { 22688f74ed1eSHans de Goede ehci_commit_irq(ehci); 22698f74ed1eSHans de Goede if ((ehci->usbsts & USBINTR_MASK) & ehci->usbintr) { 22708f74ed1eSHans de Goede break; 22718f74ed1eSHans de Goede } 22728f74ed1eSHans de Goede } 227380826240SHans de Goede if (ehci->periodic_sched_active) { 227480826240SHans de Goede ehci->periodic_sched_active--; 227580826240SHans de Goede } 2276f020ed36SGerd Hoffmann ehci_update_frindex(ehci, 1); 22779359a58bSHans de Goede if ((ehci->frindex & 7) == 0) { 2278f020ed36SGerd Hoffmann ehci_advance_periodic_state(ehci); 22799359a58bSHans de Goede } 22809359a58bSHans de Goede ehci->last_run_ns += UFRAME_TIMER_NS; 2281f1ae32a1SGerd Hoffmann } 22823a215326SGerd Hoffmann } else { 228380826240SHans de Goede ehci->periodic_sched_active = 0; 22849359a58bSHans de Goede ehci_update_frindex(ehci, uframes); 22859359a58bSHans de Goede ehci->last_run_ns += UFRAME_TIMER_NS * uframes; 22863a215326SGerd Hoffmann } 2287f1ae32a1SGerd Hoffmann 228880826240SHans de Goede if (ehci->periodic_sched_active) { 228980826240SHans de Goede ehci->async_stepdown = 0; 229080826240SHans de Goede } else if (ehci->async_stepdown < ehci->maxframes / 2) { 229180826240SHans de Goede ehci->async_stepdown++; 229280826240SHans de Goede } 229380826240SHans de Goede 2294f1ae32a1SGerd Hoffmann /* Async is not inside loop since it executes everything it can once 2295f1ae32a1SGerd Hoffmann * called 2296f1ae32a1SGerd Hoffmann */ 22973a215326SGerd Hoffmann if (ehci_async_enabled(ehci) || ehci->astate != EST_INACTIVE) { 22987efc17afSGerd Hoffmann need_timer++; 2299afb7a0b8SGerd Hoffmann ehci_advance_async_state(ehci); 23003a215326SGerd Hoffmann } 2301f1ae32a1SGerd Hoffmann 23027efc17afSGerd Hoffmann ehci_commit_irq(ehci); 23037efc17afSGerd Hoffmann if (ehci->usbsts_pending) { 23047efc17afSGerd Hoffmann need_timer++; 23057efc17afSGerd Hoffmann ehci->async_stepdown = 0; 2306f1ae32a1SGerd Hoffmann } 2307f0ad01f9SGerd Hoffmann 230840862309SGerd Hoffmann if (ehci_enabled(ehci) && (ehci->usbintr & USBSTS_FLR)) { 230940862309SGerd Hoffmann need_timer++; 231040862309SGerd Hoffmann } 231140862309SGerd Hoffmann 23127efc17afSGerd Hoffmann if (need_timer) { 231344272b0fSHans de Goede /* If we've raised int, we speed up the timer, so that we quickly 231444272b0fSHans de Goede * notice any new packets queued up in response */ 231544272b0fSHans de Goede if (ehci->int_req_by_async && (ehci->usbsts & USBSTS_INT)) { 231673bcb24dSRutuja Shah expire_time = t_now + 231773bcb24dSRutuja Shah NANOSECONDS_PER_SECOND / (FRAME_TIMER_FREQ * 4); 231844272b0fSHans de Goede ehci->int_req_by_async = false; 231944272b0fSHans de Goede } else { 232073bcb24dSRutuja Shah expire_time = t_now + (NANOSECONDS_PER_SECOND 2321afb7a0b8SGerd Hoffmann * (ehci->async_stepdown+1) / FRAME_TIMER_FREQ); 232244272b0fSHans de Goede } 2323bc72ad67SAlex Bligh timer_mod(ehci->frame_timer, expire_time); 23247efc17afSGerd Hoffmann } 2325daf25307SGerd Hoffmann } 2326f1ae32a1SGerd Hoffmann 23273e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_caps_ops = { 23283e4f910cSGerd Hoffmann .read = ehci_caps_read, 2329dff0367cSPrasad J Pandit .write = ehci_caps_write, 23303e4f910cSGerd Hoffmann .valid.min_access_size = 1, 23313e4f910cSGerd Hoffmann .valid.max_access_size = 4, 23323e4f910cSGerd Hoffmann .impl.min_access_size = 1, 23333e4f910cSGerd Hoffmann .impl.max_access_size = 1, 23343e4f910cSGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 23353e4f910cSGerd Hoffmann }; 23363e4f910cSGerd Hoffmann 23373e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_opreg_ops = { 23383e4f910cSGerd Hoffmann .read = ehci_opreg_read, 23393e4f910cSGerd Hoffmann .write = ehci_opreg_write, 23403e4f910cSGerd Hoffmann .valid.min_access_size = 4, 23413e4f910cSGerd Hoffmann .valid.max_access_size = 4, 23423e4f910cSGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 23433e4f910cSGerd Hoffmann }; 23443e4f910cSGerd Hoffmann 23453e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_port_ops = { 23463e4f910cSGerd Hoffmann .read = ehci_port_read, 23473e4f910cSGerd Hoffmann .write = ehci_port_write, 23483e4f910cSGerd Hoffmann .valid.min_access_size = 4, 23493e4f910cSGerd Hoffmann .valid.max_access_size = 4, 2350f1ae32a1SGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 2351f1ae32a1SGerd Hoffmann }; 2352f1ae32a1SGerd Hoffmann 2353f1ae32a1SGerd Hoffmann static USBPortOps ehci_port_ops = { 2354f1ae32a1SGerd Hoffmann .attach = ehci_attach, 2355f1ae32a1SGerd Hoffmann .detach = ehci_detach, 2356f1ae32a1SGerd Hoffmann .child_detach = ehci_child_detach, 2357f1ae32a1SGerd Hoffmann .wakeup = ehci_wakeup, 2358f1ae32a1SGerd Hoffmann .complete = ehci_async_complete_packet, 2359f1ae32a1SGerd Hoffmann }; 2360f1ae32a1SGerd Hoffmann 2361ec56214fSGerd Hoffmann static USBBusOps ehci_bus_ops_companion = { 2362f1ae32a1SGerd Hoffmann .register_companion = ehci_register_companion, 236380826240SHans de Goede .wakeup_endpoint = ehci_wakeup_endpoint, 2364f1ae32a1SGerd Hoffmann }; 2365ec56214fSGerd Hoffmann static USBBusOps ehci_bus_ops_standalone = { 2366ec56214fSGerd Hoffmann .wakeup_endpoint = ehci_wakeup_endpoint, 2367ec56214fSGerd Hoffmann }; 2368f1ae32a1SGerd Hoffmann 23699359a58bSHans de Goede static void usb_ehci_pre_save(void *opaque) 23709359a58bSHans de Goede { 23719359a58bSHans de Goede EHCIState *ehci = opaque; 23729359a58bSHans de Goede uint32_t new_frindex; 23739359a58bSHans de Goede 23749359a58bSHans de Goede /* Round down frindex to a multiple of 8 for migration compatibility */ 23759359a58bSHans de Goede new_frindex = ehci->frindex & ~7; 23769359a58bSHans de Goede ehci->last_run_ns -= (ehci->frindex - new_frindex) * UFRAME_TIMER_NS; 23779359a58bSHans de Goede ehci->frindex = new_frindex; 23789359a58bSHans de Goede } 23799359a58bSHans de Goede 23809a773408SGerd Hoffmann static int usb_ehci_post_load(void *opaque, int version_id) 23819a773408SGerd Hoffmann { 23829a773408SGerd Hoffmann EHCIState *s = opaque; 23839a773408SGerd Hoffmann int i; 23849a773408SGerd Hoffmann 23859a773408SGerd Hoffmann for (i = 0; i < NB_PORTS; i++) { 23869a773408SGerd Hoffmann USBPort *companion = s->companion_ports[i]; 23879a773408SGerd Hoffmann if (companion == NULL) { 23889a773408SGerd Hoffmann continue; 23899a773408SGerd Hoffmann } 23909a773408SGerd Hoffmann if (s->portsc[i] & PORTSC_POWNER) { 23919a773408SGerd Hoffmann companion->dev = s->ports[i].dev; 23929a773408SGerd Hoffmann } else { 23939a773408SGerd Hoffmann companion->dev = NULL; 23949a773408SGerd Hoffmann } 23959a773408SGerd Hoffmann } 23969a773408SGerd Hoffmann 23979a773408SGerd Hoffmann return 0; 23989a773408SGerd Hoffmann } 23999a773408SGerd Hoffmann 2400ceab6f96SHans de Goede static void usb_ehci_vm_state_change(void *opaque, int running, RunState state) 2401ceab6f96SHans de Goede { 2402ceab6f96SHans de Goede EHCIState *ehci = opaque; 2403ceab6f96SHans de Goede 2404ceab6f96SHans de Goede /* 2405ceab6f96SHans de Goede * We don't migrate the EHCIQueue-s, instead we rebuild them for the 2406ceab6f96SHans de Goede * schedule in guest memory. We must do the rebuilt ASAP, so that 2407ceab6f96SHans de Goede * USB-devices which have async handled packages have a packet in the 2408ceab6f96SHans de Goede * ep queue to match the completion with. 2409ceab6f96SHans de Goede */ 2410ceab6f96SHans de Goede if (state == RUN_STATE_RUNNING) { 2411ceab6f96SHans de Goede ehci_advance_async_state(ehci); 2412ceab6f96SHans de Goede } 2413ceab6f96SHans de Goede 2414ceab6f96SHans de Goede /* 2415ceab6f96SHans de Goede * The schedule rebuilt from guest memory could cause the migration dest 2416ceab6f96SHans de Goede * to miss a QH unlink, and fail to cancel packets, since the unlinked QH 2417ceab6f96SHans de Goede * will never have existed on the destination. Therefor we must flush the 2418ceab6f96SHans de Goede * async schedule on savevm to catch any not yet noticed unlinks. 2419ceab6f96SHans de Goede */ 2420ceab6f96SHans de Goede if (state == RUN_STATE_SAVE_VM) { 2421ceab6f96SHans de Goede ehci_advance_async_state(ehci); 2422ceab6f96SHans de Goede ehci_queues_rip_unseen(ehci, 1); 2423ceab6f96SHans de Goede } 2424ceab6f96SHans de Goede } 2425ceab6f96SHans de Goede 24260bf96f94SGerd Hoffmann const VMStateDescription vmstate_ehci = { 24275010d4dcSPeter Crosthwaite .name = "ehci-core", 24286d3b6d3dSGerd Hoffmann .version_id = 2, 24296d3b6d3dSGerd Hoffmann .minimum_version_id = 1, 24309359a58bSHans de Goede .pre_save = usb_ehci_pre_save, 24319a773408SGerd Hoffmann .post_load = usb_ehci_post_load, 24329a773408SGerd Hoffmann .fields = (VMStateField[]) { 24339a773408SGerd Hoffmann /* mmio registers */ 24349a773408SGerd Hoffmann VMSTATE_UINT32(usbcmd, EHCIState), 24359a773408SGerd Hoffmann VMSTATE_UINT32(usbsts, EHCIState), 24366d3b6d3dSGerd Hoffmann VMSTATE_UINT32_V(usbsts_pending, EHCIState, 2), 24376d3b6d3dSGerd Hoffmann VMSTATE_UINT32_V(usbsts_frindex, EHCIState, 2), 24389a773408SGerd Hoffmann VMSTATE_UINT32(usbintr, EHCIState), 24399a773408SGerd Hoffmann VMSTATE_UINT32(frindex, EHCIState), 24409a773408SGerd Hoffmann VMSTATE_UINT32(ctrldssegment, EHCIState), 24419a773408SGerd Hoffmann VMSTATE_UINT32(periodiclistbase, EHCIState), 24429a773408SGerd Hoffmann VMSTATE_UINT32(asynclistaddr, EHCIState), 24439a773408SGerd Hoffmann VMSTATE_UINT32(configflag, EHCIState), 24449a773408SGerd Hoffmann VMSTATE_UINT32(portsc[0], EHCIState), 24459a773408SGerd Hoffmann VMSTATE_UINT32(portsc[1], EHCIState), 24469a773408SGerd Hoffmann VMSTATE_UINT32(portsc[2], EHCIState), 24479a773408SGerd Hoffmann VMSTATE_UINT32(portsc[3], EHCIState), 24489a773408SGerd Hoffmann VMSTATE_UINT32(portsc[4], EHCIState), 24499a773408SGerd Hoffmann VMSTATE_UINT32(portsc[5], EHCIState), 24509a773408SGerd Hoffmann /* frame timer */ 2451e720677eSPaolo Bonzini VMSTATE_TIMER_PTR(frame_timer, EHCIState), 24529a773408SGerd Hoffmann VMSTATE_UINT64(last_run_ns, EHCIState), 24539a773408SGerd Hoffmann VMSTATE_UINT32(async_stepdown, EHCIState), 24549a773408SGerd Hoffmann /* schedule state */ 24559a773408SGerd Hoffmann VMSTATE_UINT32(astate, EHCIState), 24569a773408SGerd Hoffmann VMSTATE_UINT32(pstate, EHCIState), 24579a773408SGerd Hoffmann VMSTATE_UINT32(a_fetch_addr, EHCIState), 24589a773408SGerd Hoffmann VMSTATE_UINT32(p_fetch_addr, EHCIState), 24599a773408SGerd Hoffmann VMSTATE_END_OF_LIST() 24609a773408SGerd Hoffmann } 2461f1ae32a1SGerd Hoffmann }; 2462f1ae32a1SGerd Hoffmann 246308f4c90bSAndreas Färber void usb_ehci_realize(EHCIState *s, DeviceState *dev, Error **errp) 2464f1ae32a1SGerd Hoffmann { 2465f1ae32a1SGerd Hoffmann int i; 2466f1ae32a1SGerd Hoffmann 2467cc8d6a84SKuo-Jung Su if (s->portnr > NB_PORTS) { 2468cc8d6a84SKuo-Jung Su error_setg(errp, "Too many ports! Max. port number is %d.", 2469cc8d6a84SKuo-Jung Su NB_PORTS); 2470cc8d6a84SKuo-Jung Su return; 2471cc8d6a84SKuo-Jung Su } 2472cc8d6a84SKuo-Jung Su 2473ec56214fSGerd Hoffmann usb_bus_new(&s->bus, sizeof(s->bus), s->companion_enable ? 2474ec56214fSGerd Hoffmann &ehci_bus_ops_companion : &ehci_bus_ops_standalone, dev); 2475cc8d6a84SKuo-Jung Su for (i = 0; i < s->portnr; i++) { 2476d4614cc3SAndreas Färber usb_register_port(&s->bus, &s->ports[i], s, i, &ehci_port_ops, 2477d4614cc3SAndreas Färber USB_SPEED_MASK_HIGH); 2478d4614cc3SAndreas Färber s->ports[i].dev = 0; 2479d4614cc3SAndreas Färber } 2480d4614cc3SAndreas Färber 2481bc72ad67SAlex Bligh s->frame_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, ehci_frame_timer, s); 2482d4614cc3SAndreas Färber s->async_bh = qemu_bh_new(ehci_frame_timer, s); 2483adbecc89SGerd Hoffmann s->device = dev; 2484d4614cc3SAndreas Färber 248505a36991SGonglei s->vmstate = qemu_add_vm_change_state_handler(usb_ehci_vm_state_change, s); 2486d4614cc3SAndreas Färber } 2487d4614cc3SAndreas Färber 24884e130cf6SGonglei void usb_ehci_unrealize(EHCIState *s, DeviceState *dev, Error **errp) 24894e130cf6SGonglei { 2490d733f74cSGonglei trace_usb_ehci_unrealize(); 2491d733f74cSGonglei 24924e130cf6SGonglei if (s->frame_timer) { 24934e130cf6SGonglei timer_del(s->frame_timer); 24944e130cf6SGonglei timer_free(s->frame_timer); 24954e130cf6SGonglei s->frame_timer = NULL; 24964e130cf6SGonglei } 24974e130cf6SGonglei if (s->async_bh) { 24984e130cf6SGonglei qemu_bh_delete(s->async_bh); 24994e130cf6SGonglei } 25004e130cf6SGonglei 25014e130cf6SGonglei ehci_queues_rip_all(s, 0); 25024e130cf6SGonglei ehci_queues_rip_all(s, 1); 25034e130cf6SGonglei 25044e130cf6SGonglei memory_region_del_subregion(&s->mem, &s->mem_caps); 25054e130cf6SGonglei memory_region_del_subregion(&s->mem, &s->mem_opreg); 25064e130cf6SGonglei memory_region_del_subregion(&s->mem, &s->mem_ports); 25074e130cf6SGonglei 25084e130cf6SGonglei usb_bus_release(&s->bus); 25094e130cf6SGonglei 25104e130cf6SGonglei if (s->vmstate) { 25114e130cf6SGonglei qemu_del_vm_change_state_handler(s->vmstate); 25124e130cf6SGonglei } 25134e130cf6SGonglei } 25144e130cf6SGonglei 2515d4614cc3SAndreas Färber void usb_ehci_init(EHCIState *s, DeviceState *dev) 2516d4614cc3SAndreas Färber { 25173e4f910cSGerd Hoffmann /* 2.2 host controller interface version */ 251827a11324SPeter Crosthwaite s->caps[0x00] = (uint8_t)(s->opregbase - s->capsbase); 25193e4f910cSGerd Hoffmann s->caps[0x01] = 0x00; 25203e4f910cSGerd Hoffmann s->caps[0x02] = 0x00; 25213e4f910cSGerd Hoffmann s->caps[0x03] = 0x01; /* HC version */ 2522cc8d6a84SKuo-Jung Su s->caps[0x04] = s->portnr; /* Number of downstream ports */ 25233e4f910cSGerd Hoffmann s->caps[0x05] = 0x00; /* No companion ports at present */ 25243e4f910cSGerd Hoffmann s->caps[0x06] = 0x00; 25253e4f910cSGerd Hoffmann s->caps[0x07] = 0x00; 25263e4f910cSGerd Hoffmann s->caps[0x08] = 0x80; /* We can cache whole frame, no 64-bit */ 25273e4f910cSGerd Hoffmann s->caps[0x0a] = 0x00; 25283e4f910cSGerd Hoffmann s->caps[0x0b] = 0x00; 2529f1ae32a1SGerd Hoffmann 2530f1ae32a1SGerd Hoffmann QTAILQ_INIT(&s->aqueues); 2531f1ae32a1SGerd Hoffmann QTAILQ_INIT(&s->pqueues); 25327341ea07SHans de Goede usb_packet_init(&s->ipacket); 2533f1ae32a1SGerd Hoffmann 253422fc860bSPaolo Bonzini memory_region_init(&s->mem, OBJECT(dev), "ehci", MMIO_SIZE); 253522fc860bSPaolo Bonzini memory_region_init_io(&s->mem_caps, OBJECT(dev), &ehci_mmio_caps_ops, s, 253627a11324SPeter Crosthwaite "capabilities", CAPA_SIZE); 253722fc860bSPaolo Bonzini memory_region_init_io(&s->mem_opreg, OBJECT(dev), &ehci_mmio_opreg_ops, s, 2538cc8d6a84SKuo-Jung Su "operational", s->portscbase); 253922fc860bSPaolo Bonzini memory_region_init_io(&s->mem_ports, OBJECT(dev), &ehci_mmio_port_ops, s, 2540cc8d6a84SKuo-Jung Su "ports", 4 * s->portnr); 25413e4f910cSGerd Hoffmann 254227a11324SPeter Crosthwaite memory_region_add_subregion(&s->mem, s->capsbase, &s->mem_caps); 254327a11324SPeter Crosthwaite memory_region_add_subregion(&s->mem, s->opregbase, &s->mem_opreg); 2544cc8d6a84SKuo-Jung Su memory_region_add_subregion(&s->mem, s->opregbase + s->portscbase, 254527a11324SPeter Crosthwaite &s->mem_ports); 25465010d4dcSPeter Crosthwaite } 25473e4f910cSGerd Hoffmann 2548*d710e1e7SLi Qiang void usb_ehci_finalize(EHCIState *s) 2549*d710e1e7SLi Qiang { 2550*d710e1e7SLi Qiang usb_packet_cleanup(&s->ipacket); 2551*d710e1e7SLi Qiang } 2552*d710e1e7SLi Qiang 2553f1ae32a1SGerd Hoffmann /* 2554f1ae32a1SGerd Hoffmann * vim: expandtab ts=4 2555f1ae32a1SGerd Hoffmann */ 2556