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 300bf96f94SGerd Hoffmann #include "hw/usb/hcd-ehci.h" 31f1ae32a1SGerd Hoffmann 32f1ae32a1SGerd Hoffmann /* Capability Registers Base Address - section 2.2 */ 3327a11324SPeter Crosthwaite #define CAPLENGTH 0x0000 /* 1-byte, 0x0001 reserved */ 3427a11324SPeter Crosthwaite #define HCIVERSION 0x0002 /* 2-bytes, i/f version # */ 3527a11324SPeter Crosthwaite #define HCSPARAMS 0x0004 /* 4-bytes, structural params */ 3627a11324SPeter Crosthwaite #define HCCPARAMS 0x0008 /* 4-bytes, capability params */ 37f1ae32a1SGerd Hoffmann #define EECP HCCPARAMS + 1 3827a11324SPeter Crosthwaite #define HCSPPORTROUTE1 0x000c 3927a11324SPeter Crosthwaite #define HCSPPORTROUTE2 0x0010 40f1ae32a1SGerd Hoffmann 4127a11324SPeter Crosthwaite #define USBCMD 0x0000 42f1ae32a1SGerd Hoffmann #define USBCMD_RUNSTOP (1 << 0) // run / Stop 43f1ae32a1SGerd Hoffmann #define USBCMD_HCRESET (1 << 1) // HC Reset 44f1ae32a1SGerd Hoffmann #define USBCMD_FLS (3 << 2) // Frame List Size 45f1ae32a1SGerd Hoffmann #define USBCMD_FLS_SH 2 // Frame List Size Shift 46f1ae32a1SGerd Hoffmann #define USBCMD_PSE (1 << 4) // Periodic Schedule Enable 47f1ae32a1SGerd Hoffmann #define USBCMD_ASE (1 << 5) // Asynch Schedule Enable 48f1ae32a1SGerd Hoffmann #define USBCMD_IAAD (1 << 6) // Int Asynch Advance Doorbell 49f1ae32a1SGerd Hoffmann #define USBCMD_LHCR (1 << 7) // Light Host Controller Reset 50f1ae32a1SGerd Hoffmann #define USBCMD_ASPMC (3 << 8) // Async Sched Park Mode Count 51f1ae32a1SGerd Hoffmann #define USBCMD_ASPME (1 << 11) // Async Sched Park Mode Enable 52f1ae32a1SGerd Hoffmann #define USBCMD_ITC (0x7f << 16) // Int Threshold Control 53f1ae32a1SGerd Hoffmann #define USBCMD_ITC_SH 16 // Int Threshold Control Shift 54f1ae32a1SGerd Hoffmann 5527a11324SPeter Crosthwaite #define USBSTS 0x0004 56f1ae32a1SGerd Hoffmann #define USBSTS_RO_MASK 0x0000003f 57f1ae32a1SGerd Hoffmann #define USBSTS_INT (1 << 0) // USB Interrupt 58f1ae32a1SGerd Hoffmann #define USBSTS_ERRINT (1 << 1) // Error Interrupt 59f1ae32a1SGerd Hoffmann #define USBSTS_PCD (1 << 2) // Port Change Detect 60f1ae32a1SGerd Hoffmann #define USBSTS_FLR (1 << 3) // Frame List Rollover 61f1ae32a1SGerd Hoffmann #define USBSTS_HSE (1 << 4) // Host System Error 62f1ae32a1SGerd Hoffmann #define USBSTS_IAA (1 << 5) // Interrupt on Async Advance 63f1ae32a1SGerd Hoffmann #define USBSTS_HALT (1 << 12) // HC Halted 64f1ae32a1SGerd Hoffmann #define USBSTS_REC (1 << 13) // Reclamation 65f1ae32a1SGerd Hoffmann #define USBSTS_PSS (1 << 14) // Periodic Schedule Status 66f1ae32a1SGerd Hoffmann #define USBSTS_ASS (1 << 15) // Asynchronous Schedule Status 67f1ae32a1SGerd Hoffmann 68f1ae32a1SGerd Hoffmann /* 69f1ae32a1SGerd Hoffmann * Interrupt enable bits correspond to the interrupt active bits in USBSTS 70f1ae32a1SGerd Hoffmann * so no need to redefine here. 71f1ae32a1SGerd Hoffmann */ 7227a11324SPeter Crosthwaite #define USBINTR 0x0008 73f1ae32a1SGerd Hoffmann #define USBINTR_MASK 0x0000003f 74f1ae32a1SGerd Hoffmann 7527a11324SPeter Crosthwaite #define FRINDEX 0x000c 7627a11324SPeter Crosthwaite #define CTRLDSSEGMENT 0x0010 7727a11324SPeter Crosthwaite #define PERIODICLISTBASE 0x0014 7827a11324SPeter Crosthwaite #define ASYNCLISTADDR 0x0018 79f1ae32a1SGerd Hoffmann #define ASYNCLISTADDR_MASK 0xffffffe0 80f1ae32a1SGerd Hoffmann 8127a11324SPeter Crosthwaite #define CONFIGFLAG 0x0040 82f1ae32a1SGerd Hoffmann 83f1ae32a1SGerd Hoffmann /* 84f1ae32a1SGerd Hoffmann * Bits that are reserved or are read-only are masked out of values 85f1ae32a1SGerd Hoffmann * written to us by software 86f1ae32a1SGerd Hoffmann */ 87f1ae32a1SGerd Hoffmann #define PORTSC_RO_MASK 0x007001c0 88f1ae32a1SGerd Hoffmann #define PORTSC_RWC_MASK 0x0000002a 89f1ae32a1SGerd Hoffmann #define PORTSC_WKOC_E (1 << 22) // Wake on Over Current Enable 90f1ae32a1SGerd Hoffmann #define PORTSC_WKDS_E (1 << 21) // Wake on Disconnect Enable 91f1ae32a1SGerd Hoffmann #define PORTSC_WKCN_E (1 << 20) // Wake on Connect Enable 92f1ae32a1SGerd Hoffmann #define PORTSC_PTC (15 << 16) // Port Test Control 93f1ae32a1SGerd Hoffmann #define PORTSC_PTC_SH 16 // Port Test Control shift 94f1ae32a1SGerd Hoffmann #define PORTSC_PIC (3 << 14) // Port Indicator Control 95f1ae32a1SGerd Hoffmann #define PORTSC_PIC_SH 14 // Port Indicator Control Shift 96f1ae32a1SGerd Hoffmann #define PORTSC_POWNER (1 << 13) // Port Owner 97f1ae32a1SGerd Hoffmann #define PORTSC_PPOWER (1 << 12) // Port Power 98f1ae32a1SGerd Hoffmann #define PORTSC_LINESTAT (3 << 10) // Port Line Status 99f1ae32a1SGerd Hoffmann #define PORTSC_LINESTAT_SH 10 // Port Line Status Shift 100f1ae32a1SGerd Hoffmann #define PORTSC_PRESET (1 << 8) // Port Reset 101f1ae32a1SGerd Hoffmann #define PORTSC_SUSPEND (1 << 7) // Port Suspend 102f1ae32a1SGerd Hoffmann #define PORTSC_FPRES (1 << 6) // Force Port Resume 103f1ae32a1SGerd Hoffmann #define PORTSC_OCC (1 << 5) // Over Current Change 104f1ae32a1SGerd Hoffmann #define PORTSC_OCA (1 << 4) // Over Current Active 105f1ae32a1SGerd Hoffmann #define PORTSC_PEDC (1 << 3) // Port Enable/Disable Change 106f1ae32a1SGerd Hoffmann #define PORTSC_PED (1 << 2) // Port Enable/Disable 107f1ae32a1SGerd Hoffmann #define PORTSC_CSC (1 << 1) // Connect Status Change 108f1ae32a1SGerd Hoffmann #define PORTSC_CONNECT (1 << 0) // Current Connect Status 109f1ae32a1SGerd Hoffmann 110f1ae32a1SGerd Hoffmann #define FRAME_TIMER_FREQ 1000 111f1ae32a1SGerd Hoffmann #define FRAME_TIMER_NS (1000000000 / FRAME_TIMER_FREQ) 112f1ae32a1SGerd Hoffmann 113f1ae32a1SGerd Hoffmann #define NB_MAXINTRATE 8 // Max rate at which controller issues ints 114f1ae32a1SGerd Hoffmann #define BUFF_SIZE 5*4096 // Max bytes to transfer per transaction 115f1ae32a1SGerd Hoffmann #define MAX_QH 100 // Max allowable queue heads in a chain 1168f74ed1eSHans de Goede #define MIN_FR_PER_TICK 3 // Min frames to process when catching up 11780826240SHans de Goede #define PERIODIC_ACTIVE 64 118f1ae32a1SGerd Hoffmann 119f1ae32a1SGerd Hoffmann /* Internal periodic / asynchronous schedule state machine states 120f1ae32a1SGerd Hoffmann */ 121f1ae32a1SGerd Hoffmann typedef enum { 122f1ae32a1SGerd Hoffmann EST_INACTIVE = 1000, 123f1ae32a1SGerd Hoffmann EST_ACTIVE, 124f1ae32a1SGerd Hoffmann EST_EXECUTING, 125f1ae32a1SGerd Hoffmann EST_SLEEPING, 126f1ae32a1SGerd Hoffmann /* The following states are internal to the state machine function 127f1ae32a1SGerd Hoffmann */ 128f1ae32a1SGerd Hoffmann EST_WAITLISTHEAD, 129f1ae32a1SGerd Hoffmann EST_FETCHENTRY, 130f1ae32a1SGerd Hoffmann EST_FETCHQH, 131f1ae32a1SGerd Hoffmann EST_FETCHITD, 132f1ae32a1SGerd Hoffmann EST_FETCHSITD, 133f1ae32a1SGerd Hoffmann EST_ADVANCEQUEUE, 134f1ae32a1SGerd Hoffmann EST_FETCHQTD, 135f1ae32a1SGerd Hoffmann EST_EXECUTE, 136f1ae32a1SGerd Hoffmann EST_WRITEBACK, 137f1ae32a1SGerd Hoffmann EST_HORIZONTALQH 138f1ae32a1SGerd Hoffmann } EHCI_STATES; 139f1ae32a1SGerd Hoffmann 140f1ae32a1SGerd Hoffmann /* macros for accessing fields within next link pointer entry */ 141f1ae32a1SGerd Hoffmann #define NLPTR_GET(x) ((x) & 0xffffffe0) 142f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_GET(x) (((x) >> 1) & 3) 143f1ae32a1SGerd Hoffmann #define NLPTR_TBIT(x) ((x) & 1) // 1=invalid, 0=valid 144f1ae32a1SGerd Hoffmann 145f1ae32a1SGerd Hoffmann /* link pointer types */ 146f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_ITD 0 // isoc xfer descriptor 147f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_QH 1 // queue head 148f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_STITD 2 // split xaction, isoc xfer descriptor 149f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_FSTN 3 // frame span traversal node 150f1ae32a1SGerd Hoffmann 151f1ae32a1SGerd Hoffmann #define SET_LAST_RUN_CLOCK(s) \ 152f1ae32a1SGerd Hoffmann (s)->last_run_ns = qemu_get_clock_ns(vm_clock); 153f1ae32a1SGerd Hoffmann 154f1ae32a1SGerd Hoffmann /* nifty macros from Arnon's EHCI version */ 155f1ae32a1SGerd Hoffmann #define get_field(data, field) \ 156f1ae32a1SGerd Hoffmann (((data) & field##_MASK) >> field##_SH) 157f1ae32a1SGerd Hoffmann 158f1ae32a1SGerd Hoffmann #define set_field(data, newval, field) do { \ 159f1ae32a1SGerd Hoffmann uint32_t val = *data; \ 160f1ae32a1SGerd Hoffmann val &= ~ field##_MASK; \ 161f1ae32a1SGerd Hoffmann val |= ((newval) << field##_SH) & field##_MASK; \ 162f1ae32a1SGerd Hoffmann *data = val; \ 163f1ae32a1SGerd Hoffmann } while(0) 164f1ae32a1SGerd Hoffmann 165f1ae32a1SGerd Hoffmann static const char *ehci_state_names[] = { 166f1ae32a1SGerd Hoffmann [EST_INACTIVE] = "INACTIVE", 167f1ae32a1SGerd Hoffmann [EST_ACTIVE] = "ACTIVE", 168f1ae32a1SGerd Hoffmann [EST_EXECUTING] = "EXECUTING", 169f1ae32a1SGerd Hoffmann [EST_SLEEPING] = "SLEEPING", 170f1ae32a1SGerd Hoffmann [EST_WAITLISTHEAD] = "WAITLISTHEAD", 171f1ae32a1SGerd Hoffmann [EST_FETCHENTRY] = "FETCH ENTRY", 172f1ae32a1SGerd Hoffmann [EST_FETCHQH] = "FETCH QH", 173f1ae32a1SGerd Hoffmann [EST_FETCHITD] = "FETCH ITD", 174f1ae32a1SGerd Hoffmann [EST_ADVANCEQUEUE] = "ADVANCEQUEUE", 175f1ae32a1SGerd Hoffmann [EST_FETCHQTD] = "FETCH QTD", 176f1ae32a1SGerd Hoffmann [EST_EXECUTE] = "EXECUTE", 177f1ae32a1SGerd Hoffmann [EST_WRITEBACK] = "WRITEBACK", 178f1ae32a1SGerd Hoffmann [EST_HORIZONTALQH] = "HORIZONTALQH", 179f1ae32a1SGerd Hoffmann }; 180f1ae32a1SGerd Hoffmann 181f1ae32a1SGerd Hoffmann static const char *ehci_mmio_names[] = { 182f1ae32a1SGerd Hoffmann [USBCMD] = "USBCMD", 183f1ae32a1SGerd Hoffmann [USBSTS] = "USBSTS", 184f1ae32a1SGerd Hoffmann [USBINTR] = "USBINTR", 185f1ae32a1SGerd Hoffmann [FRINDEX] = "FRINDEX", 186f1ae32a1SGerd Hoffmann [PERIODICLISTBASE] = "P-LIST BASE", 187f1ae32a1SGerd Hoffmann [ASYNCLISTADDR] = "A-LIST ADDR", 188f1ae32a1SGerd Hoffmann [CONFIGFLAG] = "CONFIGFLAG", 189f1ae32a1SGerd Hoffmann }; 190f1ae32a1SGerd Hoffmann 1914b63a0dfSHans de Goede static int ehci_state_executing(EHCIQueue *q); 1924b63a0dfSHans de Goede static int ehci_state_writeback(EHCIQueue *q); 193ff80ce59SHans de Goede static int ehci_state_advqueue(EHCIQueue *q); 194b4ea8664SHans de Goede static int ehci_fill_queue(EHCIPacket *p); 1954b63a0dfSHans de Goede 196f1ae32a1SGerd Hoffmann static const char *nr2str(const char **n, size_t len, uint32_t nr) 197f1ae32a1SGerd Hoffmann { 198f1ae32a1SGerd Hoffmann if (nr < len && n[nr] != NULL) { 199f1ae32a1SGerd Hoffmann return n[nr]; 200f1ae32a1SGerd Hoffmann } else { 201f1ae32a1SGerd Hoffmann return "unknown"; 202f1ae32a1SGerd Hoffmann } 203f1ae32a1SGerd Hoffmann } 204f1ae32a1SGerd Hoffmann 205f1ae32a1SGerd Hoffmann static const char *state2str(uint32_t state) 206f1ae32a1SGerd Hoffmann { 207f1ae32a1SGerd Hoffmann return nr2str(ehci_state_names, ARRAY_SIZE(ehci_state_names), state); 208f1ae32a1SGerd Hoffmann } 209f1ae32a1SGerd Hoffmann 210a8170e5eSAvi Kivity static const char *addr2str(hwaddr addr) 211f1ae32a1SGerd Hoffmann { 21227a11324SPeter Crosthwaite return nr2str(ehci_mmio_names, ARRAY_SIZE(ehci_mmio_names), addr); 213f1ae32a1SGerd Hoffmann } 214f1ae32a1SGerd Hoffmann 215f1ae32a1SGerd Hoffmann static void ehci_trace_usbsts(uint32_t mask, int state) 216f1ae32a1SGerd Hoffmann { 217f1ae32a1SGerd Hoffmann /* interrupts */ 218f1ae32a1SGerd Hoffmann if (mask & USBSTS_INT) { 219f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("INT", state); 220f1ae32a1SGerd Hoffmann } 221f1ae32a1SGerd Hoffmann if (mask & USBSTS_ERRINT) { 222f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("ERRINT", state); 223f1ae32a1SGerd Hoffmann } 224f1ae32a1SGerd Hoffmann if (mask & USBSTS_PCD) { 225f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("PCD", state); 226f1ae32a1SGerd Hoffmann } 227f1ae32a1SGerd Hoffmann if (mask & USBSTS_FLR) { 228f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("FLR", state); 229f1ae32a1SGerd Hoffmann } 230f1ae32a1SGerd Hoffmann if (mask & USBSTS_HSE) { 231f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("HSE", state); 232f1ae32a1SGerd Hoffmann } 233f1ae32a1SGerd Hoffmann if (mask & USBSTS_IAA) { 234f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("IAA", state); 235f1ae32a1SGerd Hoffmann } 236f1ae32a1SGerd Hoffmann 237f1ae32a1SGerd Hoffmann /* status */ 238f1ae32a1SGerd Hoffmann if (mask & USBSTS_HALT) { 239f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("HALT", state); 240f1ae32a1SGerd Hoffmann } 241f1ae32a1SGerd Hoffmann if (mask & USBSTS_REC) { 242f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("REC", state); 243f1ae32a1SGerd Hoffmann } 244f1ae32a1SGerd Hoffmann if (mask & USBSTS_PSS) { 245f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("PSS", state); 246f1ae32a1SGerd Hoffmann } 247f1ae32a1SGerd Hoffmann if (mask & USBSTS_ASS) { 248f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("ASS", state); 249f1ae32a1SGerd Hoffmann } 250f1ae32a1SGerd Hoffmann } 251f1ae32a1SGerd Hoffmann 252f1ae32a1SGerd Hoffmann static inline void ehci_set_usbsts(EHCIState *s, int mask) 253f1ae32a1SGerd Hoffmann { 254f1ae32a1SGerd Hoffmann if ((s->usbsts & mask) == mask) { 255f1ae32a1SGerd Hoffmann return; 256f1ae32a1SGerd Hoffmann } 257f1ae32a1SGerd Hoffmann ehci_trace_usbsts(mask, 1); 258f1ae32a1SGerd Hoffmann s->usbsts |= mask; 259f1ae32a1SGerd Hoffmann } 260f1ae32a1SGerd Hoffmann 261f1ae32a1SGerd Hoffmann static inline void ehci_clear_usbsts(EHCIState *s, int mask) 262f1ae32a1SGerd Hoffmann { 263f1ae32a1SGerd Hoffmann if ((s->usbsts & mask) == 0) { 264f1ae32a1SGerd Hoffmann return; 265f1ae32a1SGerd Hoffmann } 266f1ae32a1SGerd Hoffmann ehci_trace_usbsts(mask, 0); 267f1ae32a1SGerd Hoffmann s->usbsts &= ~mask; 268f1ae32a1SGerd Hoffmann } 269f1ae32a1SGerd Hoffmann 2707efc17afSGerd Hoffmann /* update irq line */ 2717efc17afSGerd Hoffmann static inline void ehci_update_irq(EHCIState *s) 272f1ae32a1SGerd Hoffmann { 273f1ae32a1SGerd Hoffmann int level = 0; 274f1ae32a1SGerd Hoffmann 275f1ae32a1SGerd Hoffmann if ((s->usbsts & USBINTR_MASK) & s->usbintr) { 276f1ae32a1SGerd Hoffmann level = 1; 277f1ae32a1SGerd Hoffmann } 278f1ae32a1SGerd Hoffmann 2797efc17afSGerd Hoffmann trace_usb_ehci_irq(level, s->frindex, s->usbsts, s->usbintr); 280f1ae32a1SGerd Hoffmann qemu_set_irq(s->irq, level); 281f1ae32a1SGerd Hoffmann } 282f1ae32a1SGerd Hoffmann 2837efc17afSGerd Hoffmann /* flag interrupt condition */ 2847efc17afSGerd Hoffmann static inline void ehci_raise_irq(EHCIState *s, int intr) 285f1ae32a1SGerd Hoffmann { 2866d3b6d3dSGerd Hoffmann if (intr & (USBSTS_PCD | USBSTS_FLR | USBSTS_HSE)) { 2876d3b6d3dSGerd Hoffmann s->usbsts |= intr; 2886d3b6d3dSGerd Hoffmann ehci_update_irq(s); 2896d3b6d3dSGerd Hoffmann } else { 290f1ae32a1SGerd Hoffmann s->usbsts_pending |= intr; 291f1ae32a1SGerd Hoffmann } 2926d3b6d3dSGerd Hoffmann } 293f1ae32a1SGerd Hoffmann 2947efc17afSGerd Hoffmann /* 2957efc17afSGerd Hoffmann * Commit pending interrupts (added via ehci_raise_irq), 2967efc17afSGerd Hoffmann * at the rate allowed by "Interrupt Threshold Control". 2977efc17afSGerd Hoffmann */ 2987efc17afSGerd Hoffmann static inline void ehci_commit_irq(EHCIState *s) 299f1ae32a1SGerd Hoffmann { 3007efc17afSGerd Hoffmann uint32_t itc; 3017efc17afSGerd Hoffmann 302f1ae32a1SGerd Hoffmann if (!s->usbsts_pending) { 303f1ae32a1SGerd Hoffmann return; 304f1ae32a1SGerd Hoffmann } 3057efc17afSGerd Hoffmann if (s->usbsts_frindex > s->frindex) { 3067efc17afSGerd Hoffmann return; 3077efc17afSGerd Hoffmann } 3087efc17afSGerd Hoffmann 3097efc17afSGerd Hoffmann itc = (s->usbcmd >> 16) & 0xff; 3107efc17afSGerd Hoffmann s->usbsts |= s->usbsts_pending; 311f1ae32a1SGerd Hoffmann s->usbsts_pending = 0; 3127efc17afSGerd Hoffmann s->usbsts_frindex = s->frindex + itc; 3137efc17afSGerd Hoffmann ehci_update_irq(s); 314f1ae32a1SGerd Hoffmann } 315f1ae32a1SGerd Hoffmann 316daf25307SGerd Hoffmann static void ehci_update_halt(EHCIState *s) 317daf25307SGerd Hoffmann { 318daf25307SGerd Hoffmann if (s->usbcmd & USBCMD_RUNSTOP) { 319daf25307SGerd Hoffmann ehci_clear_usbsts(s, USBSTS_HALT); 320daf25307SGerd Hoffmann } else { 321daf25307SGerd Hoffmann if (s->astate == EST_INACTIVE && s->pstate == EST_INACTIVE) { 322daf25307SGerd Hoffmann ehci_set_usbsts(s, USBSTS_HALT); 323daf25307SGerd Hoffmann } 324daf25307SGerd Hoffmann } 325daf25307SGerd Hoffmann } 326daf25307SGerd Hoffmann 327f1ae32a1SGerd Hoffmann static void ehci_set_state(EHCIState *s, int async, int state) 328f1ae32a1SGerd Hoffmann { 329f1ae32a1SGerd Hoffmann if (async) { 330f1ae32a1SGerd Hoffmann trace_usb_ehci_state("async", state2str(state)); 331f1ae32a1SGerd Hoffmann s->astate = state; 332b53f685dSGerd Hoffmann if (s->astate == EST_INACTIVE) { 333b53f685dSGerd Hoffmann ehci_clear_usbsts(s, USBSTS_ASS); 334daf25307SGerd Hoffmann ehci_update_halt(s); 335b53f685dSGerd Hoffmann } else { 336b53f685dSGerd Hoffmann ehci_set_usbsts(s, USBSTS_ASS); 337b53f685dSGerd Hoffmann } 338f1ae32a1SGerd Hoffmann } else { 339f1ae32a1SGerd Hoffmann trace_usb_ehci_state("periodic", state2str(state)); 340f1ae32a1SGerd Hoffmann s->pstate = state; 341b53f685dSGerd Hoffmann if (s->pstate == EST_INACTIVE) { 342b53f685dSGerd Hoffmann ehci_clear_usbsts(s, USBSTS_PSS); 343daf25307SGerd Hoffmann ehci_update_halt(s); 344b53f685dSGerd Hoffmann } else { 345b53f685dSGerd Hoffmann ehci_set_usbsts(s, USBSTS_PSS); 346b53f685dSGerd Hoffmann } 347f1ae32a1SGerd Hoffmann } 348f1ae32a1SGerd Hoffmann } 349f1ae32a1SGerd Hoffmann 350f1ae32a1SGerd Hoffmann static int ehci_get_state(EHCIState *s, int async) 351f1ae32a1SGerd Hoffmann { 352f1ae32a1SGerd Hoffmann return async ? s->astate : s->pstate; 353f1ae32a1SGerd Hoffmann } 354f1ae32a1SGerd Hoffmann 355f1ae32a1SGerd Hoffmann static void ehci_set_fetch_addr(EHCIState *s, int async, uint32_t addr) 356f1ae32a1SGerd Hoffmann { 357f1ae32a1SGerd Hoffmann if (async) { 358f1ae32a1SGerd Hoffmann s->a_fetch_addr = addr; 359f1ae32a1SGerd Hoffmann } else { 360f1ae32a1SGerd Hoffmann s->p_fetch_addr = addr; 361f1ae32a1SGerd Hoffmann } 362f1ae32a1SGerd Hoffmann } 363f1ae32a1SGerd Hoffmann 364f1ae32a1SGerd Hoffmann static int ehci_get_fetch_addr(EHCIState *s, int async) 365f1ae32a1SGerd Hoffmann { 366f1ae32a1SGerd Hoffmann return async ? s->a_fetch_addr : s->p_fetch_addr; 367f1ae32a1SGerd Hoffmann } 368f1ae32a1SGerd Hoffmann 369a8170e5eSAvi Kivity static void ehci_trace_qh(EHCIQueue *q, hwaddr addr, EHCIqh *qh) 370f1ae32a1SGerd Hoffmann { 371f1ae32a1SGerd Hoffmann /* need three here due to argument count limits */ 372f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_ptrs(q, addr, qh->next, 373f1ae32a1SGerd Hoffmann qh->current_qtd, qh->next_qtd, qh->altnext_qtd); 374f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_fields(addr, 375f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_RL), 376f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_MPLEN), 377f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_EPS), 378f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_EP), 379f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_DEVADDR)); 380f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_bits(addr, 381f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_C), 382f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_H), 383f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_DTC), 384f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_I)); 385f1ae32a1SGerd Hoffmann } 386f1ae32a1SGerd Hoffmann 387a8170e5eSAvi Kivity static void ehci_trace_qtd(EHCIQueue *q, hwaddr addr, EHCIqtd *qtd) 388f1ae32a1SGerd Hoffmann { 389f1ae32a1SGerd Hoffmann /* need three here due to argument count limits */ 390f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_ptrs(q, addr, qtd->next, qtd->altnext); 391f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_fields(addr, 392f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_TBYTES), 393f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_CPAGE), 394f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_CERR), 395f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_PID)); 396f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_bits(addr, 397f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_IOC), 398f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_ACTIVE), 399f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_HALT), 400f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_BABBLE), 401f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_XACTERR)); 402f1ae32a1SGerd Hoffmann } 403f1ae32a1SGerd Hoffmann 404a8170e5eSAvi Kivity static void ehci_trace_itd(EHCIState *s, hwaddr addr, EHCIitd *itd) 405f1ae32a1SGerd Hoffmann { 406f1ae32a1SGerd Hoffmann trace_usb_ehci_itd(addr, itd->next, 407f1ae32a1SGerd Hoffmann get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT), 408f1ae32a1SGerd Hoffmann get_field(itd->bufptr[2], ITD_BUFPTR_MULT), 409f1ae32a1SGerd Hoffmann get_field(itd->bufptr[0], ITD_BUFPTR_EP), 410f1ae32a1SGerd Hoffmann get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR)); 411f1ae32a1SGerd Hoffmann } 412f1ae32a1SGerd Hoffmann 413a8170e5eSAvi Kivity static void ehci_trace_sitd(EHCIState *s, hwaddr addr, 414f1ae32a1SGerd Hoffmann EHCIsitd *sitd) 415f1ae32a1SGerd Hoffmann { 416f1ae32a1SGerd Hoffmann trace_usb_ehci_sitd(addr, sitd->next, 417f1ae32a1SGerd Hoffmann (bool)(sitd->results & SITD_RESULTS_ACTIVE)); 418f1ae32a1SGerd Hoffmann } 419f1ae32a1SGerd Hoffmann 4205c514681SGerd Hoffmann static void ehci_trace_guest_bug(EHCIState *s, const char *message) 4215c514681SGerd Hoffmann { 4225c514681SGerd Hoffmann trace_usb_ehci_guest_bug(message); 4235c514681SGerd Hoffmann fprintf(stderr, "ehci warning: %s\n", message); 4245c514681SGerd Hoffmann } 4255c514681SGerd Hoffmann 426ec807d12SGerd Hoffmann static inline bool ehci_enabled(EHCIState *s) 427ec807d12SGerd Hoffmann { 428ec807d12SGerd Hoffmann return s->usbcmd & USBCMD_RUNSTOP; 429ec807d12SGerd Hoffmann } 430ec807d12SGerd Hoffmann 431ec807d12SGerd Hoffmann static inline bool ehci_async_enabled(EHCIState *s) 432ec807d12SGerd Hoffmann { 433ec807d12SGerd Hoffmann return ehci_enabled(s) && (s->usbcmd & USBCMD_ASE); 434ec807d12SGerd Hoffmann } 435ec807d12SGerd Hoffmann 436ec807d12SGerd Hoffmann static inline bool ehci_periodic_enabled(EHCIState *s) 437ec807d12SGerd Hoffmann { 438ec807d12SGerd Hoffmann return ehci_enabled(s) && (s->usbcmd & USBCMD_PSE); 439ec807d12SGerd Hoffmann } 440ec807d12SGerd Hoffmann 441*f881c8d3SHans de Goede /* Finish executing and writeback a packet outside of the regular 442*f881c8d3SHans de Goede fetchqh -> fetchqtd -> execute -> writeback cycle */ 443*f881c8d3SHans de Goede static void ehci_writeback_async_complete_packet(EHCIPacket *p) 444*f881c8d3SHans de Goede { 445*f881c8d3SHans de Goede EHCIQueue *q = p->queue; 446*f881c8d3SHans de Goede int state; 447*f881c8d3SHans de Goede 448*f881c8d3SHans de Goede state = ehci_get_state(q->ehci, q->async); 449*f881c8d3SHans de Goede ehci_state_executing(q); 450*f881c8d3SHans de Goede ehci_state_writeback(q); /* Frees the packet! */ 451*f881c8d3SHans de Goede if (!(q->qh.token & QTD_TOKEN_HALT)) { 452*f881c8d3SHans de Goede ehci_state_advqueue(q); 453*f881c8d3SHans de Goede } 454*f881c8d3SHans de Goede ehci_set_state(q->ehci, q->async, state); 455*f881c8d3SHans de Goede } 456*f881c8d3SHans de Goede 457eb36a88eSGerd Hoffmann /* packet management */ 458eb36a88eSGerd Hoffmann 459eb36a88eSGerd Hoffmann static EHCIPacket *ehci_alloc_packet(EHCIQueue *q) 460eb36a88eSGerd Hoffmann { 461eb36a88eSGerd Hoffmann EHCIPacket *p; 462eb36a88eSGerd Hoffmann 463eb36a88eSGerd Hoffmann p = g_new0(EHCIPacket, 1); 464eb36a88eSGerd Hoffmann p->queue = q; 465eb36a88eSGerd Hoffmann usb_packet_init(&p->packet); 466eb36a88eSGerd Hoffmann QTAILQ_INSERT_TAIL(&q->packets, p, next); 467eb36a88eSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "alloc"); 468eb36a88eSGerd Hoffmann return p; 469eb36a88eSGerd Hoffmann } 470eb36a88eSGerd Hoffmann 471eb36a88eSGerd Hoffmann static void ehci_free_packet(EHCIPacket *p) 472eb36a88eSGerd Hoffmann { 4734b63a0dfSHans de Goede if (p->async == EHCI_ASYNC_FINISHED) { 474*f881c8d3SHans de Goede ehci_writeback_async_complete_packet(p); 4754b63a0dfSHans de Goede return; 4764b63a0dfSHans de Goede } 477616789cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "free"); 478ef5b2344SHans de Goede if (p->async == EHCI_ASYNC_INITIALIZED) { 479ef5b2344SHans de Goede usb_packet_unmap(&p->packet, &p->sgl); 480ef5b2344SHans de Goede qemu_sglist_destroy(&p->sgl); 481ef5b2344SHans de Goede } 482616789cdSGerd Hoffmann if (p->async == EHCI_ASYNC_INFLIGHT) { 483616789cdSGerd Hoffmann usb_cancel_packet(&p->packet); 484616789cdSGerd Hoffmann usb_packet_unmap(&p->packet, &p->sgl); 485616789cdSGerd Hoffmann qemu_sglist_destroy(&p->sgl); 486616789cdSGerd Hoffmann } 487eb36a88eSGerd Hoffmann QTAILQ_REMOVE(&p->queue->packets, p, next); 488eb36a88eSGerd Hoffmann usb_packet_cleanup(&p->packet); 489eb36a88eSGerd Hoffmann g_free(p); 490eb36a88eSGerd Hoffmann } 491eb36a88eSGerd Hoffmann 492f1ae32a1SGerd Hoffmann /* queue management */ 493f1ae32a1SGerd Hoffmann 4948f6d5e26SGerd Hoffmann static EHCIQueue *ehci_alloc_queue(EHCIState *ehci, uint32_t addr, int async) 495f1ae32a1SGerd Hoffmann { 496f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 497f1ae32a1SGerd Hoffmann EHCIQueue *q; 498f1ae32a1SGerd Hoffmann 499f1ae32a1SGerd Hoffmann q = g_malloc0(sizeof(*q)); 500f1ae32a1SGerd Hoffmann q->ehci = ehci; 5018f6d5e26SGerd Hoffmann q->qhaddr = addr; 502ae0138a8SGerd Hoffmann q->async = async; 503eb36a88eSGerd Hoffmann QTAILQ_INIT(&q->packets); 504f1ae32a1SGerd Hoffmann QTAILQ_INSERT_HEAD(head, q, next); 505f1ae32a1SGerd Hoffmann trace_usb_ehci_queue_action(q, "alloc"); 506f1ae32a1SGerd Hoffmann return q; 507f1ae32a1SGerd Hoffmann } 508f1ae32a1SGerd Hoffmann 5095c514681SGerd Hoffmann static int ehci_cancel_queue(EHCIQueue *q) 510c7cdca3bSGerd Hoffmann { 511c7cdca3bSGerd Hoffmann EHCIPacket *p; 5125c514681SGerd Hoffmann int packets = 0; 513c7cdca3bSGerd Hoffmann 514c7cdca3bSGerd Hoffmann p = QTAILQ_FIRST(&q->packets); 515c7cdca3bSGerd Hoffmann if (p == NULL) { 5165c514681SGerd Hoffmann return 0; 517c7cdca3bSGerd Hoffmann } 518c7cdca3bSGerd Hoffmann 519c7cdca3bSGerd Hoffmann trace_usb_ehci_queue_action(q, "cancel"); 520c7cdca3bSGerd Hoffmann do { 521c7cdca3bSGerd Hoffmann ehci_free_packet(p); 5225c514681SGerd Hoffmann packets++; 523c7cdca3bSGerd Hoffmann } while ((p = QTAILQ_FIRST(&q->packets)) != NULL); 5245c514681SGerd Hoffmann return packets; 525c7cdca3bSGerd Hoffmann } 526c7cdca3bSGerd Hoffmann 5275c514681SGerd Hoffmann static int ehci_reset_queue(EHCIQueue *q) 528dafe31fcSHans de Goede { 5295c514681SGerd Hoffmann int packets; 5305c514681SGerd Hoffmann 531dafe31fcSHans de Goede trace_usb_ehci_queue_action(q, "reset"); 5325c514681SGerd Hoffmann packets = ehci_cancel_queue(q); 533dafe31fcSHans de Goede q->dev = NULL; 534dafe31fcSHans de Goede q->qtdaddr = 0; 5355c514681SGerd Hoffmann return packets; 536dafe31fcSHans de Goede } 537dafe31fcSHans de Goede 5383a8ca08eSHans de Goede static void ehci_free_queue(EHCIQueue *q, const char *warn) 539f1ae32a1SGerd Hoffmann { 540ae0138a8SGerd Hoffmann EHCIQueueHead *head = q->async ? &q->ehci->aqueues : &q->ehci->pqueues; 5413a8ca08eSHans de Goede int cancelled; 542eb36a88eSGerd Hoffmann 543f1ae32a1SGerd Hoffmann trace_usb_ehci_queue_action(q, "free"); 5443a8ca08eSHans de Goede cancelled = ehci_cancel_queue(q); 5453a8ca08eSHans de Goede if (warn && cancelled > 0) { 5463a8ca08eSHans de Goede ehci_trace_guest_bug(q->ehci, warn); 5473a8ca08eSHans de Goede } 548f1ae32a1SGerd Hoffmann QTAILQ_REMOVE(head, q, next); 549f1ae32a1SGerd Hoffmann g_free(q); 550f1ae32a1SGerd Hoffmann } 551f1ae32a1SGerd Hoffmann 552f1ae32a1SGerd Hoffmann static EHCIQueue *ehci_find_queue_by_qh(EHCIState *ehci, uint32_t addr, 553f1ae32a1SGerd Hoffmann int async) 554f1ae32a1SGerd Hoffmann { 555f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 556f1ae32a1SGerd Hoffmann EHCIQueue *q; 557f1ae32a1SGerd Hoffmann 558f1ae32a1SGerd Hoffmann QTAILQ_FOREACH(q, head, next) { 559f1ae32a1SGerd Hoffmann if (addr == q->qhaddr) { 560f1ae32a1SGerd Hoffmann return q; 561f1ae32a1SGerd Hoffmann } 562f1ae32a1SGerd Hoffmann } 563f1ae32a1SGerd Hoffmann return NULL; 564f1ae32a1SGerd Hoffmann } 565f1ae32a1SGerd Hoffmann 5668f5457ebSHans de Goede static void ehci_queues_rip_unused(EHCIState *ehci, int async) 567f1ae32a1SGerd Hoffmann { 568f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 5698f5457ebSHans de Goede const char *warn = async ? "guest unlinked busy QH" : NULL; 5703a215326SGerd Hoffmann uint64_t maxage = FRAME_TIMER_NS * ehci->maxframes * 4; 571f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 572f1ae32a1SGerd Hoffmann 573f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 574f1ae32a1SGerd Hoffmann if (q->seen) { 575f1ae32a1SGerd Hoffmann q->seen = 0; 576f1ae32a1SGerd Hoffmann q->ts = ehci->last_run_ns; 577f1ae32a1SGerd Hoffmann continue; 578f1ae32a1SGerd Hoffmann } 5798f5457ebSHans de Goede if (ehci->last_run_ns < q->ts + maxage) { 580f1ae32a1SGerd Hoffmann continue; 581f1ae32a1SGerd Hoffmann } 5823a8ca08eSHans de Goede ehci_free_queue(q, warn); 583f1ae32a1SGerd Hoffmann } 584f1ae32a1SGerd Hoffmann } 585f1ae32a1SGerd Hoffmann 5868f5457ebSHans de Goede static void ehci_queues_rip_unseen(EHCIState *ehci, int async) 5878f5457ebSHans de Goede { 5888f5457ebSHans de Goede EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 5898f5457ebSHans de Goede EHCIQueue *q, *tmp; 5908f5457ebSHans de Goede 5918f5457ebSHans de Goede QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 5928f5457ebSHans de Goede if (!q->seen) { 5938f5457ebSHans de Goede ehci_free_queue(q, NULL); 5948f5457ebSHans de Goede } 5958f5457ebSHans de Goede } 5968f5457ebSHans de Goede } 5978f5457ebSHans de Goede 598f1ae32a1SGerd Hoffmann static void ehci_queues_rip_device(EHCIState *ehci, USBDevice *dev, int async) 599f1ae32a1SGerd Hoffmann { 600f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 601f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 602f1ae32a1SGerd Hoffmann 603f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 604e59928b3SGerd Hoffmann if (q->dev != dev) { 605f1ae32a1SGerd Hoffmann continue; 606f1ae32a1SGerd Hoffmann } 6073a8ca08eSHans de Goede ehci_free_queue(q, NULL); 608f1ae32a1SGerd Hoffmann } 609f1ae32a1SGerd Hoffmann } 610f1ae32a1SGerd Hoffmann 611f1ae32a1SGerd Hoffmann static void ehci_queues_rip_all(EHCIState *ehci, int async) 612f1ae32a1SGerd Hoffmann { 613f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 6143a8ca08eSHans de Goede const char *warn = async ? "guest stopped busy async schedule" : NULL; 615f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 616f1ae32a1SGerd Hoffmann 617f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 6183a8ca08eSHans de Goede ehci_free_queue(q, warn); 619f1ae32a1SGerd Hoffmann } 620f1ae32a1SGerd Hoffmann } 621f1ae32a1SGerd Hoffmann 622f1ae32a1SGerd Hoffmann /* Attach or detach a device on root hub */ 623f1ae32a1SGerd Hoffmann 624f1ae32a1SGerd Hoffmann static void ehci_attach(USBPort *port) 625f1ae32a1SGerd Hoffmann { 626f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 627f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port->index]; 62830e9d412SGerd Hoffmann const char *owner = (*portsc & PORTSC_POWNER) ? "comp" : "ehci"; 629f1ae32a1SGerd Hoffmann 63030e9d412SGerd Hoffmann trace_usb_ehci_port_attach(port->index, owner, port->dev->product_desc); 631f1ae32a1SGerd Hoffmann 632f1ae32a1SGerd Hoffmann if (*portsc & PORTSC_POWNER) { 633f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 634f1ae32a1SGerd Hoffmann companion->dev = port->dev; 635f1ae32a1SGerd Hoffmann companion->ops->attach(companion); 636f1ae32a1SGerd Hoffmann return; 637f1ae32a1SGerd Hoffmann } 638f1ae32a1SGerd Hoffmann 639f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CONNECT; 640f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CSC; 641f1ae32a1SGerd Hoffmann 6427efc17afSGerd Hoffmann ehci_raise_irq(s, USBSTS_PCD); 6437efc17afSGerd Hoffmann ehci_commit_irq(s); 644f1ae32a1SGerd Hoffmann } 645f1ae32a1SGerd Hoffmann 646f1ae32a1SGerd Hoffmann static void ehci_detach(USBPort *port) 647f1ae32a1SGerd Hoffmann { 648f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 649f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port->index]; 65030e9d412SGerd Hoffmann const char *owner = (*portsc & PORTSC_POWNER) ? "comp" : "ehci"; 651f1ae32a1SGerd Hoffmann 65230e9d412SGerd Hoffmann trace_usb_ehci_port_detach(port->index, owner); 653f1ae32a1SGerd Hoffmann 654f1ae32a1SGerd Hoffmann if (*portsc & PORTSC_POWNER) { 655f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 656f1ae32a1SGerd Hoffmann companion->ops->detach(companion); 657f1ae32a1SGerd Hoffmann companion->dev = NULL; 658f1ae32a1SGerd Hoffmann /* 659f1ae32a1SGerd Hoffmann * EHCI spec 4.2.2: "When a disconnect occurs... On the event, 660f1ae32a1SGerd Hoffmann * the port ownership is returned immediately to the EHCI controller." 661f1ae32a1SGerd Hoffmann */ 662f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_POWNER; 663f1ae32a1SGerd Hoffmann return; 664f1ae32a1SGerd Hoffmann } 665f1ae32a1SGerd Hoffmann 666f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, port->dev, 0); 667f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, port->dev, 1); 668f1ae32a1SGerd Hoffmann 669f1ae32a1SGerd Hoffmann *portsc &= ~(PORTSC_CONNECT|PORTSC_PED); 670f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CSC; 671f1ae32a1SGerd Hoffmann 6727efc17afSGerd Hoffmann ehci_raise_irq(s, USBSTS_PCD); 6737efc17afSGerd Hoffmann ehci_commit_irq(s); 674f1ae32a1SGerd Hoffmann } 675f1ae32a1SGerd Hoffmann 676f1ae32a1SGerd Hoffmann static void ehci_child_detach(USBPort *port, USBDevice *child) 677f1ae32a1SGerd Hoffmann { 678f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 679f1ae32a1SGerd Hoffmann uint32_t portsc = s->portsc[port->index]; 680f1ae32a1SGerd Hoffmann 681f1ae32a1SGerd Hoffmann if (portsc & PORTSC_POWNER) { 682f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 683f1ae32a1SGerd Hoffmann companion->ops->child_detach(companion, child); 684f1ae32a1SGerd Hoffmann return; 685f1ae32a1SGerd Hoffmann } 686f1ae32a1SGerd Hoffmann 687f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, child, 0); 688f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, child, 1); 689f1ae32a1SGerd Hoffmann } 690f1ae32a1SGerd Hoffmann 691f1ae32a1SGerd Hoffmann static void ehci_wakeup(USBPort *port) 692f1ae32a1SGerd Hoffmann { 693f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 694f1ae32a1SGerd Hoffmann uint32_t portsc = s->portsc[port->index]; 695f1ae32a1SGerd Hoffmann 696f1ae32a1SGerd Hoffmann if (portsc & PORTSC_POWNER) { 697f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 698f1ae32a1SGerd Hoffmann if (companion->ops->wakeup) { 699f1ae32a1SGerd Hoffmann companion->ops->wakeup(companion); 70037952117SHans de Goede } 70137952117SHans de Goede return; 70237952117SHans de Goede } 70337952117SHans de Goede 7040f588df8SGerd Hoffmann qemu_bh_schedule(s->async_bh); 705f1ae32a1SGerd Hoffmann } 706f1ae32a1SGerd Hoffmann 707f1ae32a1SGerd Hoffmann static int ehci_register_companion(USBBus *bus, USBPort *ports[], 708f1ae32a1SGerd Hoffmann uint32_t portcount, uint32_t firstport) 709f1ae32a1SGerd Hoffmann { 710f1ae32a1SGerd Hoffmann EHCIState *s = container_of(bus, EHCIState, bus); 711f1ae32a1SGerd Hoffmann uint32_t i; 712f1ae32a1SGerd Hoffmann 713f1ae32a1SGerd Hoffmann if (firstport + portcount > NB_PORTS) { 714f1ae32a1SGerd Hoffmann qerror_report(QERR_INVALID_PARAMETER_VALUE, "firstport", 715f1ae32a1SGerd Hoffmann "firstport on masterbus"); 716f1ae32a1SGerd Hoffmann error_printf_unless_qmp( 717f1ae32a1SGerd Hoffmann "firstport value of %u makes companion take ports %u - %u, which " 718f1ae32a1SGerd Hoffmann "is outside of the valid range of 0 - %u\n", firstport, firstport, 719f1ae32a1SGerd Hoffmann firstport + portcount - 1, NB_PORTS - 1); 720f1ae32a1SGerd Hoffmann return -1; 721f1ae32a1SGerd Hoffmann } 722f1ae32a1SGerd Hoffmann 723f1ae32a1SGerd Hoffmann for (i = 0; i < portcount; i++) { 724f1ae32a1SGerd Hoffmann if (s->companion_ports[firstport + i]) { 725f1ae32a1SGerd Hoffmann qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus", 726f1ae32a1SGerd Hoffmann "an USB masterbus"); 727f1ae32a1SGerd Hoffmann error_printf_unless_qmp( 728f1ae32a1SGerd Hoffmann "port %u on masterbus %s already has a companion assigned\n", 729f1ae32a1SGerd Hoffmann firstport + i, bus->qbus.name); 730f1ae32a1SGerd Hoffmann return -1; 731f1ae32a1SGerd Hoffmann } 732f1ae32a1SGerd Hoffmann } 733f1ae32a1SGerd Hoffmann 734f1ae32a1SGerd Hoffmann for (i = 0; i < portcount; i++) { 735f1ae32a1SGerd Hoffmann s->companion_ports[firstport + i] = ports[i]; 736f1ae32a1SGerd Hoffmann s->ports[firstport + i].speedmask |= 737f1ae32a1SGerd Hoffmann USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL; 738f1ae32a1SGerd Hoffmann /* Ensure devs attached before the initial reset go to the companion */ 739f1ae32a1SGerd Hoffmann s->portsc[firstport + i] = PORTSC_POWNER; 740f1ae32a1SGerd Hoffmann } 741f1ae32a1SGerd Hoffmann 742f1ae32a1SGerd Hoffmann s->companion_count++; 7433e4f910cSGerd Hoffmann s->caps[0x05] = (s->companion_count << 4) | portcount; 744f1ae32a1SGerd Hoffmann 745f1ae32a1SGerd Hoffmann return 0; 746f1ae32a1SGerd Hoffmann } 747f1ae32a1SGerd Hoffmann 74880826240SHans de Goede static void ehci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep) 74980826240SHans de Goede { 75080826240SHans de Goede EHCIState *s = container_of(bus, EHCIState, bus); 75180826240SHans de Goede uint32_t portsc = s->portsc[ep->dev->port->index]; 75280826240SHans de Goede 75380826240SHans de Goede if (portsc & PORTSC_POWNER) { 75480826240SHans de Goede return; 75580826240SHans de Goede } 75680826240SHans de Goede 75780826240SHans de Goede s->periodic_sched_active = PERIODIC_ACTIVE; 75880826240SHans de Goede qemu_bh_schedule(s->async_bh); 75980826240SHans de Goede } 76080826240SHans de Goede 761f1ae32a1SGerd Hoffmann static USBDevice *ehci_find_device(EHCIState *ehci, uint8_t addr) 762f1ae32a1SGerd Hoffmann { 763f1ae32a1SGerd Hoffmann USBDevice *dev; 764f1ae32a1SGerd Hoffmann USBPort *port; 765f1ae32a1SGerd Hoffmann int i; 766f1ae32a1SGerd Hoffmann 767f1ae32a1SGerd Hoffmann for (i = 0; i < NB_PORTS; i++) { 768f1ae32a1SGerd Hoffmann port = &ehci->ports[i]; 769f1ae32a1SGerd Hoffmann if (!(ehci->portsc[i] & PORTSC_PED)) { 770f1ae32a1SGerd Hoffmann DPRINTF("Port %d not enabled\n", i); 771f1ae32a1SGerd Hoffmann continue; 772f1ae32a1SGerd Hoffmann } 773f1ae32a1SGerd Hoffmann dev = usb_find_device(port, addr); 774f1ae32a1SGerd Hoffmann if (dev != NULL) { 775f1ae32a1SGerd Hoffmann return dev; 776f1ae32a1SGerd Hoffmann } 777f1ae32a1SGerd Hoffmann } 778f1ae32a1SGerd Hoffmann return NULL; 779f1ae32a1SGerd Hoffmann } 780f1ae32a1SGerd Hoffmann 781f1ae32a1SGerd Hoffmann /* 4.1 host controller initialization */ 782f1ae32a1SGerd Hoffmann static void ehci_reset(void *opaque) 783f1ae32a1SGerd Hoffmann { 784f1ae32a1SGerd Hoffmann EHCIState *s = opaque; 785f1ae32a1SGerd Hoffmann int i; 786f1ae32a1SGerd Hoffmann USBDevice *devs[NB_PORTS]; 787f1ae32a1SGerd Hoffmann 788f1ae32a1SGerd Hoffmann trace_usb_ehci_reset(); 789f1ae32a1SGerd Hoffmann 790f1ae32a1SGerd Hoffmann /* 791f1ae32a1SGerd Hoffmann * Do the detach before touching portsc, so that it correctly gets send to 792f1ae32a1SGerd Hoffmann * us or to our companion based on PORTSC_POWNER before the reset. 793f1ae32a1SGerd Hoffmann */ 794f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) { 795f1ae32a1SGerd Hoffmann devs[i] = s->ports[i].dev; 796f1ae32a1SGerd Hoffmann if (devs[i] && devs[i]->attached) { 797f1ae32a1SGerd Hoffmann usb_detach(&s->ports[i]); 798f1ae32a1SGerd Hoffmann } 799f1ae32a1SGerd Hoffmann } 800f1ae32a1SGerd Hoffmann 8013e4f910cSGerd Hoffmann memset(&s->opreg, 0x00, sizeof(s->opreg)); 8023e4f910cSGerd Hoffmann memset(&s->portsc, 0x00, sizeof(s->portsc)); 803f1ae32a1SGerd Hoffmann 804f1ae32a1SGerd Hoffmann s->usbcmd = NB_MAXINTRATE << USBCMD_ITC_SH; 805f1ae32a1SGerd Hoffmann s->usbsts = USBSTS_HALT; 8067efc17afSGerd Hoffmann s->usbsts_pending = 0; 8077efc17afSGerd Hoffmann s->usbsts_frindex = 0; 808f1ae32a1SGerd Hoffmann 809f1ae32a1SGerd Hoffmann s->astate = EST_INACTIVE; 810f1ae32a1SGerd Hoffmann s->pstate = EST_INACTIVE; 811f1ae32a1SGerd Hoffmann 812f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) { 813f1ae32a1SGerd Hoffmann if (s->companion_ports[i]) { 814f1ae32a1SGerd Hoffmann s->portsc[i] = PORTSC_POWNER | PORTSC_PPOWER; 815f1ae32a1SGerd Hoffmann } else { 816f1ae32a1SGerd Hoffmann s->portsc[i] = PORTSC_PPOWER; 817f1ae32a1SGerd Hoffmann } 818f1ae32a1SGerd Hoffmann if (devs[i] && devs[i]->attached) { 819f1ae32a1SGerd Hoffmann usb_attach(&s->ports[i]); 820f1ae32a1SGerd Hoffmann usb_device_reset(devs[i]); 821f1ae32a1SGerd Hoffmann } 822f1ae32a1SGerd Hoffmann } 823f1ae32a1SGerd Hoffmann ehci_queues_rip_all(s, 0); 824f1ae32a1SGerd Hoffmann ehci_queues_rip_all(s, 1); 825f1ae32a1SGerd Hoffmann qemu_del_timer(s->frame_timer); 8260fb3e299SGerd Hoffmann qemu_bh_cancel(s->async_bh); 827f1ae32a1SGerd Hoffmann } 828f1ae32a1SGerd Hoffmann 829a8170e5eSAvi Kivity static uint64_t ehci_caps_read(void *ptr, hwaddr addr, 8303e4f910cSGerd Hoffmann unsigned size) 8313e4f910cSGerd Hoffmann { 8323e4f910cSGerd Hoffmann EHCIState *s = ptr; 8333e4f910cSGerd Hoffmann return s->caps[addr]; 8343e4f910cSGerd Hoffmann } 8353e4f910cSGerd Hoffmann 836a8170e5eSAvi Kivity static uint64_t ehci_opreg_read(void *ptr, hwaddr addr, 8373e4f910cSGerd Hoffmann unsigned size) 838f1ae32a1SGerd Hoffmann { 839f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 840f1ae32a1SGerd Hoffmann uint32_t val; 841f1ae32a1SGerd Hoffmann 8423e4f910cSGerd Hoffmann val = s->opreg[addr >> 2]; 84327a11324SPeter Crosthwaite trace_usb_ehci_opreg_read(addr + s->opregbase, addr2str(addr), val); 844f1ae32a1SGerd Hoffmann return val; 845f1ae32a1SGerd Hoffmann } 846f1ae32a1SGerd Hoffmann 847a8170e5eSAvi Kivity static uint64_t ehci_port_read(void *ptr, hwaddr addr, 8483e4f910cSGerd Hoffmann unsigned size) 849f1ae32a1SGerd Hoffmann { 850f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 851f1ae32a1SGerd Hoffmann uint32_t val; 852f1ae32a1SGerd Hoffmann 8533e4f910cSGerd Hoffmann val = s->portsc[addr >> 2]; 8543e4f910cSGerd Hoffmann trace_usb_ehci_portsc_read(addr + PORTSC_BEGIN, addr >> 2, val); 855f1ae32a1SGerd Hoffmann return val; 856f1ae32a1SGerd Hoffmann } 857f1ae32a1SGerd Hoffmann 858f1ae32a1SGerd Hoffmann static void handle_port_owner_write(EHCIState *s, int port, uint32_t owner) 859f1ae32a1SGerd Hoffmann { 860f1ae32a1SGerd Hoffmann USBDevice *dev = s->ports[port].dev; 861f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port]; 862f1ae32a1SGerd Hoffmann uint32_t orig; 863f1ae32a1SGerd Hoffmann 864f1ae32a1SGerd Hoffmann if (s->companion_ports[port] == NULL) 865f1ae32a1SGerd Hoffmann return; 866f1ae32a1SGerd Hoffmann 867f1ae32a1SGerd Hoffmann owner = owner & PORTSC_POWNER; 868f1ae32a1SGerd Hoffmann orig = *portsc & PORTSC_POWNER; 869f1ae32a1SGerd Hoffmann 870f1ae32a1SGerd Hoffmann if (!(owner ^ orig)) { 871f1ae32a1SGerd Hoffmann return; 872f1ae32a1SGerd Hoffmann } 873f1ae32a1SGerd Hoffmann 874f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 875f1ae32a1SGerd Hoffmann usb_detach(&s->ports[port]); 876f1ae32a1SGerd Hoffmann } 877f1ae32a1SGerd Hoffmann 878f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_POWNER; 879f1ae32a1SGerd Hoffmann *portsc |= owner; 880f1ae32a1SGerd Hoffmann 881f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 882f1ae32a1SGerd Hoffmann usb_attach(&s->ports[port]); 883f1ae32a1SGerd Hoffmann } 884f1ae32a1SGerd Hoffmann } 885f1ae32a1SGerd Hoffmann 886a8170e5eSAvi Kivity static void ehci_port_write(void *ptr, hwaddr addr, 8873e4f910cSGerd Hoffmann uint64_t val, unsigned size) 888f1ae32a1SGerd Hoffmann { 8893e4f910cSGerd Hoffmann EHCIState *s = ptr; 8903e4f910cSGerd Hoffmann int port = addr >> 2; 891f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port]; 8923e4f910cSGerd Hoffmann uint32_t old = *portsc; 893f1ae32a1SGerd Hoffmann USBDevice *dev = s->ports[port].dev; 894f1ae32a1SGerd Hoffmann 8953e4f910cSGerd Hoffmann trace_usb_ehci_portsc_write(addr + PORTSC_BEGIN, addr >> 2, val); 8963e4f910cSGerd Hoffmann 897f1ae32a1SGerd Hoffmann /* Clear rwc bits */ 898f1ae32a1SGerd Hoffmann *portsc &= ~(val & PORTSC_RWC_MASK); 899f1ae32a1SGerd Hoffmann /* The guest may clear, but not set the PED bit */ 900f1ae32a1SGerd Hoffmann *portsc &= val | ~PORTSC_PED; 901f1ae32a1SGerd Hoffmann /* POWNER is masked out by RO_MASK as it is RO when we've no companion */ 902f1ae32a1SGerd Hoffmann handle_port_owner_write(s, port, val); 903f1ae32a1SGerd Hoffmann /* And finally apply RO_MASK */ 904f1ae32a1SGerd Hoffmann val &= PORTSC_RO_MASK; 905f1ae32a1SGerd Hoffmann 906f1ae32a1SGerd Hoffmann if ((val & PORTSC_PRESET) && !(*portsc & PORTSC_PRESET)) { 907f1ae32a1SGerd Hoffmann trace_usb_ehci_port_reset(port, 1); 908f1ae32a1SGerd Hoffmann } 909f1ae32a1SGerd Hoffmann 910f1ae32a1SGerd Hoffmann if (!(val & PORTSC_PRESET) &&(*portsc & PORTSC_PRESET)) { 911f1ae32a1SGerd Hoffmann trace_usb_ehci_port_reset(port, 0); 912f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 913f1ae32a1SGerd Hoffmann usb_port_reset(&s->ports[port]); 914f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_CSC; 915f1ae32a1SGerd Hoffmann } 916f1ae32a1SGerd Hoffmann 917f1ae32a1SGerd Hoffmann /* 918f1ae32a1SGerd Hoffmann * Table 2.16 Set the enable bit(and enable bit change) to indicate 919f1ae32a1SGerd Hoffmann * to SW that this port has a high speed device attached 920f1ae32a1SGerd Hoffmann */ 921f1ae32a1SGerd Hoffmann if (dev && dev->attached && (dev->speedmask & USB_SPEED_MASK_HIGH)) { 922f1ae32a1SGerd Hoffmann val |= PORTSC_PED; 923f1ae32a1SGerd Hoffmann } 924f1ae32a1SGerd Hoffmann } 925f1ae32a1SGerd Hoffmann 926f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_RO_MASK; 927f1ae32a1SGerd Hoffmann *portsc |= val; 9283e4f910cSGerd Hoffmann trace_usb_ehci_portsc_change(addr + PORTSC_BEGIN, addr >> 2, *portsc, old); 929f1ae32a1SGerd Hoffmann } 930f1ae32a1SGerd Hoffmann 931a8170e5eSAvi Kivity static void ehci_opreg_write(void *ptr, hwaddr addr, 9323e4f910cSGerd Hoffmann uint64_t val, unsigned size) 933f1ae32a1SGerd Hoffmann { 934f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 9353e4f910cSGerd Hoffmann uint32_t *mmio = s->opreg + (addr >> 2); 936f1ae32a1SGerd Hoffmann uint32_t old = *mmio; 937f1ae32a1SGerd Hoffmann int i; 938f1ae32a1SGerd Hoffmann 93927a11324SPeter Crosthwaite trace_usb_ehci_opreg_write(addr + s->opregbase, addr2str(addr), val); 940f1ae32a1SGerd Hoffmann 94127a11324SPeter Crosthwaite switch (addr) { 942f1ae32a1SGerd Hoffmann case USBCMD: 9437046530cSGerd Hoffmann if (val & USBCMD_HCRESET) { 9447046530cSGerd Hoffmann ehci_reset(s); 9457046530cSGerd Hoffmann val = s->usbcmd; 9467046530cSGerd Hoffmann break; 9477046530cSGerd Hoffmann } 9487046530cSGerd Hoffmann 949f1ae32a1SGerd Hoffmann /* not supporting dynamic frame list size at the moment */ 950f1ae32a1SGerd Hoffmann if ((val & USBCMD_FLS) && !(s->usbcmd & USBCMD_FLS)) { 951f1ae32a1SGerd Hoffmann fprintf(stderr, "attempt to set frame list size -- value %d\n", 9523e4f910cSGerd Hoffmann (int)val & USBCMD_FLS); 953f1ae32a1SGerd Hoffmann val &= ~USBCMD_FLS; 954f1ae32a1SGerd Hoffmann } 95547d073ccSHans de Goede 956a1c3e4b8SHans de Goede if (val & USBCMD_IAAD) { 957a1c3e4b8SHans de Goede /* 958a1c3e4b8SHans de Goede * Process IAAD immediately, otherwise the Linux IAAD watchdog may 959a1c3e4b8SHans de Goede * trigger and re-use a qh without us seeing the unlink. 960a1c3e4b8SHans de Goede */ 961a1c3e4b8SHans de Goede s->async_stepdown = 0; 962a1c3e4b8SHans de Goede qemu_bh_schedule(s->async_bh); 9631defcbd1SGerd Hoffmann trace_usb_ehci_doorbell_ring(); 964a1c3e4b8SHans de Goede } 965a1c3e4b8SHans de Goede 96647d073ccSHans de Goede if (((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & val) != 96747d073ccSHans de Goede ((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & s->usbcmd)) { 96847d073ccSHans de Goede if (s->pstate == EST_INACTIVE) { 96947d073ccSHans de Goede SET_LAST_RUN_CLOCK(s); 97047d073ccSHans de Goede } 97147d073ccSHans de Goede s->usbcmd = val; /* Set usbcmd for ehci_update_halt() */ 97247d073ccSHans de Goede ehci_update_halt(s); 97347d073ccSHans de Goede s->async_stepdown = 0; 9740262f65aSHans de Goede qemu_bh_schedule(s->async_bh); 97547d073ccSHans de Goede } 976f1ae32a1SGerd Hoffmann break; 977f1ae32a1SGerd Hoffmann 978f1ae32a1SGerd Hoffmann case USBSTS: 979a31f0531SJim Meyering val &= USBSTS_RO_MASK; // bits 6 through 31 are RO 980a31f0531SJim Meyering ehci_clear_usbsts(s, val); // bits 0 through 5 are R/WC 981f1ae32a1SGerd Hoffmann val = s->usbsts; 9827efc17afSGerd Hoffmann ehci_update_irq(s); 983f1ae32a1SGerd Hoffmann break; 984f1ae32a1SGerd Hoffmann 985f1ae32a1SGerd Hoffmann case USBINTR: 986f1ae32a1SGerd Hoffmann val &= USBINTR_MASK; 98740862309SGerd Hoffmann if (ehci_enabled(s) && (USBSTS_FLR & val)) { 98840862309SGerd Hoffmann qemu_bh_schedule(s->async_bh); 98940862309SGerd Hoffmann } 990f1ae32a1SGerd Hoffmann break; 991f1ae32a1SGerd Hoffmann 9928a771f77SHans de Goede case FRINDEX: 9938a771f77SHans de Goede val &= 0x00003ff8; /* frindex is 14bits and always a multiple of 8 */ 9948a771f77SHans de Goede break; 9958a771f77SHans de Goede 996f1ae32a1SGerd Hoffmann case CONFIGFLAG: 997f1ae32a1SGerd Hoffmann val &= 0x1; 998f1ae32a1SGerd Hoffmann if (val) { 999f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) 1000f1ae32a1SGerd Hoffmann handle_port_owner_write(s, i, 0); 1001f1ae32a1SGerd Hoffmann } 1002f1ae32a1SGerd Hoffmann break; 1003f1ae32a1SGerd Hoffmann 1004f1ae32a1SGerd Hoffmann case PERIODICLISTBASE: 1005ec807d12SGerd Hoffmann if (ehci_periodic_enabled(s)) { 1006f1ae32a1SGerd Hoffmann fprintf(stderr, 1007f1ae32a1SGerd Hoffmann "ehci: PERIODIC list base register set while periodic schedule\n" 1008f1ae32a1SGerd Hoffmann " is enabled and HC is enabled\n"); 1009f1ae32a1SGerd Hoffmann } 1010f1ae32a1SGerd Hoffmann break; 1011f1ae32a1SGerd Hoffmann 1012f1ae32a1SGerd Hoffmann case ASYNCLISTADDR: 1013ec807d12SGerd Hoffmann if (ehci_async_enabled(s)) { 1014f1ae32a1SGerd Hoffmann fprintf(stderr, 1015f1ae32a1SGerd Hoffmann "ehci: ASYNC list address register set while async schedule\n" 1016f1ae32a1SGerd Hoffmann " is enabled and HC is enabled\n"); 1017f1ae32a1SGerd Hoffmann } 1018f1ae32a1SGerd Hoffmann break; 1019f1ae32a1SGerd Hoffmann } 1020f1ae32a1SGerd Hoffmann 1021f1ae32a1SGerd Hoffmann *mmio = val; 102227a11324SPeter Crosthwaite trace_usb_ehci_opreg_change(addr + s->opregbase, addr2str(addr), 102327a11324SPeter Crosthwaite *mmio, old); 1024f1ae32a1SGerd Hoffmann } 1025f1ae32a1SGerd Hoffmann 1026f1ae32a1SGerd Hoffmann /* Get an array of dwords from main memory */ 1027f1ae32a1SGerd Hoffmann static inline int get_dwords(EHCIState *ehci, uint32_t addr, 1028f1ae32a1SGerd Hoffmann uint32_t *buf, int num) 1029f1ae32a1SGerd Hoffmann { 1030f1ae32a1SGerd Hoffmann int i; 1031f1ae32a1SGerd Hoffmann 103255903f1dSGerd Hoffmann if (!ehci->dma) { 103355903f1dSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_HSE); 103455903f1dSGerd Hoffmann ehci->usbcmd &= ~USBCMD_RUNSTOP; 103555903f1dSGerd Hoffmann trace_usb_ehci_dma_error(); 103655903f1dSGerd Hoffmann return -1; 103755903f1dSGerd Hoffmann } 103855903f1dSGerd Hoffmann 1039f1ae32a1SGerd Hoffmann for(i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 10407ae6ce02SPeter Crosthwaite dma_memory_read(ehci->dma, addr, buf, sizeof(*buf)); 1041f1ae32a1SGerd Hoffmann *buf = le32_to_cpu(*buf); 1042f1ae32a1SGerd Hoffmann } 1043f1ae32a1SGerd Hoffmann 104455903f1dSGerd Hoffmann return num; 1045f1ae32a1SGerd Hoffmann } 1046f1ae32a1SGerd Hoffmann 1047f1ae32a1SGerd Hoffmann /* Put an array of dwords in to main memory */ 1048f1ae32a1SGerd Hoffmann static inline int put_dwords(EHCIState *ehci, uint32_t addr, 1049f1ae32a1SGerd Hoffmann uint32_t *buf, int num) 1050f1ae32a1SGerd Hoffmann { 1051f1ae32a1SGerd Hoffmann int i; 1052f1ae32a1SGerd Hoffmann 105355903f1dSGerd Hoffmann if (!ehci->dma) { 105455903f1dSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_HSE); 105555903f1dSGerd Hoffmann ehci->usbcmd &= ~USBCMD_RUNSTOP; 105655903f1dSGerd Hoffmann trace_usb_ehci_dma_error(); 105755903f1dSGerd Hoffmann return -1; 105855903f1dSGerd Hoffmann } 105955903f1dSGerd Hoffmann 1060f1ae32a1SGerd Hoffmann for(i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 1061f1ae32a1SGerd Hoffmann uint32_t tmp = cpu_to_le32(*buf); 10627ae6ce02SPeter Crosthwaite dma_memory_write(ehci->dma, addr, &tmp, sizeof(tmp)); 1063f1ae32a1SGerd Hoffmann } 1064f1ae32a1SGerd Hoffmann 106555903f1dSGerd Hoffmann return num; 1066f1ae32a1SGerd Hoffmann } 1067f1ae32a1SGerd Hoffmann 1068a5e0139aSGerd Hoffmann /* 1069a5e0139aSGerd Hoffmann * Write the qh back to guest physical memory. This step isn't 1070a5e0139aSGerd Hoffmann * in the EHCI spec but we need to do it since we don't share 1071a5e0139aSGerd Hoffmann * physical memory with our guest VM. 1072a5e0139aSGerd Hoffmann * 1073a5e0139aSGerd Hoffmann * The first three dwords are read-only for the EHCI, so skip them 1074a5e0139aSGerd Hoffmann * when writing back the qh. 1075a5e0139aSGerd Hoffmann */ 1076a5e0139aSGerd Hoffmann static void ehci_flush_qh(EHCIQueue *q) 1077a5e0139aSGerd Hoffmann { 1078a5e0139aSGerd Hoffmann uint32_t *qh = (uint32_t *) &q->qh; 1079a5e0139aSGerd Hoffmann uint32_t dwords = sizeof(EHCIqh) >> 2; 1080a5e0139aSGerd Hoffmann uint32_t addr = NLPTR_GET(q->qhaddr); 1081a5e0139aSGerd Hoffmann 1082a5e0139aSGerd Hoffmann put_dwords(q->ehci, addr + 3 * sizeof(uint32_t), qh + 3, dwords - 3); 1083a5e0139aSGerd Hoffmann } 1084a5e0139aSGerd Hoffmann 1085f1ae32a1SGerd Hoffmann // 4.10.2 1086f1ae32a1SGerd Hoffmann 1087f1ae32a1SGerd Hoffmann static int ehci_qh_do_overlay(EHCIQueue *q) 1088f1ae32a1SGerd Hoffmann { 1089eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1090f1ae32a1SGerd Hoffmann int i; 1091f1ae32a1SGerd Hoffmann int dtoggle; 1092f1ae32a1SGerd Hoffmann int ping; 1093f1ae32a1SGerd Hoffmann int eps; 1094f1ae32a1SGerd Hoffmann int reload; 1095f1ae32a1SGerd Hoffmann 1096eb36a88eSGerd Hoffmann assert(p != NULL); 1097eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1098eb36a88eSGerd Hoffmann 1099f1ae32a1SGerd Hoffmann // remember values in fields to preserve in qh after overlay 1100f1ae32a1SGerd Hoffmann 1101f1ae32a1SGerd Hoffmann dtoggle = q->qh.token & QTD_TOKEN_DTOGGLE; 1102f1ae32a1SGerd Hoffmann ping = q->qh.token & QTD_TOKEN_PING; 1103f1ae32a1SGerd Hoffmann 1104eb36a88eSGerd Hoffmann q->qh.current_qtd = p->qtdaddr; 1105eb36a88eSGerd Hoffmann q->qh.next_qtd = p->qtd.next; 1106eb36a88eSGerd Hoffmann q->qh.altnext_qtd = p->qtd.altnext; 1107eb36a88eSGerd Hoffmann q->qh.token = p->qtd.token; 1108f1ae32a1SGerd Hoffmann 1109f1ae32a1SGerd Hoffmann 1110f1ae32a1SGerd Hoffmann eps = get_field(q->qh.epchar, QH_EPCHAR_EPS); 1111f1ae32a1SGerd Hoffmann if (eps == EHCI_QH_EPS_HIGH) { 1112f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_PING; 1113f1ae32a1SGerd Hoffmann q->qh.token |= ping; 1114f1ae32a1SGerd Hoffmann } 1115f1ae32a1SGerd Hoffmann 1116f1ae32a1SGerd Hoffmann reload = get_field(q->qh.epchar, QH_EPCHAR_RL); 1117f1ae32a1SGerd Hoffmann set_field(&q->qh.altnext_qtd, reload, QH_ALTNEXT_NAKCNT); 1118f1ae32a1SGerd Hoffmann 1119f1ae32a1SGerd Hoffmann for (i = 0; i < 5; i++) { 1120eb36a88eSGerd Hoffmann q->qh.bufptr[i] = p->qtd.bufptr[i]; 1121f1ae32a1SGerd Hoffmann } 1122f1ae32a1SGerd Hoffmann 1123f1ae32a1SGerd Hoffmann if (!(q->qh.epchar & QH_EPCHAR_DTC)) { 1124f1ae32a1SGerd Hoffmann // preserve QH DT bit 1125f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_DTOGGLE; 1126f1ae32a1SGerd Hoffmann q->qh.token |= dtoggle; 1127f1ae32a1SGerd Hoffmann } 1128f1ae32a1SGerd Hoffmann 1129f1ae32a1SGerd Hoffmann q->qh.bufptr[1] &= ~BUFPTR_CPROGMASK_MASK; 1130f1ae32a1SGerd Hoffmann q->qh.bufptr[2] &= ~BUFPTR_FRAMETAG_MASK; 1131f1ae32a1SGerd Hoffmann 1132a5e0139aSGerd Hoffmann ehci_flush_qh(q); 1133f1ae32a1SGerd Hoffmann 1134f1ae32a1SGerd Hoffmann return 0; 1135f1ae32a1SGerd Hoffmann } 1136f1ae32a1SGerd Hoffmann 1137eb36a88eSGerd Hoffmann static int ehci_init_transfer(EHCIPacket *p) 1138f1ae32a1SGerd Hoffmann { 1139f1ae32a1SGerd Hoffmann uint32_t cpage, offset, bytes, plen; 1140f1ae32a1SGerd Hoffmann dma_addr_t page; 1141f1ae32a1SGerd Hoffmann 1142eb36a88eSGerd Hoffmann cpage = get_field(p->qtd.token, QTD_TOKEN_CPAGE); 1143eb36a88eSGerd Hoffmann bytes = get_field(p->qtd.token, QTD_TOKEN_TBYTES); 1144eb36a88eSGerd Hoffmann offset = p->qtd.bufptr[0] & ~QTD_BUFPTR_MASK; 11457ae6ce02SPeter Crosthwaite qemu_sglist_init(&p->sgl, 5, p->queue->ehci->dma); 1146f1ae32a1SGerd Hoffmann 1147f1ae32a1SGerd Hoffmann while (bytes > 0) { 1148f1ae32a1SGerd Hoffmann if (cpage > 4) { 1149f1ae32a1SGerd Hoffmann fprintf(stderr, "cpage out of range (%d)\n", cpage); 115001e26b0eSHans de Goede return -1; 1151f1ae32a1SGerd Hoffmann } 1152f1ae32a1SGerd Hoffmann 1153eb36a88eSGerd Hoffmann page = p->qtd.bufptr[cpage] & QTD_BUFPTR_MASK; 1154f1ae32a1SGerd Hoffmann page += offset; 1155f1ae32a1SGerd Hoffmann plen = bytes; 1156f1ae32a1SGerd Hoffmann if (plen > 4096 - offset) { 1157f1ae32a1SGerd Hoffmann plen = 4096 - offset; 1158f1ae32a1SGerd Hoffmann offset = 0; 1159f1ae32a1SGerd Hoffmann cpage++; 1160f1ae32a1SGerd Hoffmann } 1161f1ae32a1SGerd Hoffmann 1162eb36a88eSGerd Hoffmann qemu_sglist_add(&p->sgl, page, plen); 1163f1ae32a1SGerd Hoffmann bytes -= plen; 1164f1ae32a1SGerd Hoffmann } 1165f1ae32a1SGerd Hoffmann return 0; 1166f1ae32a1SGerd Hoffmann } 1167f1ae32a1SGerd Hoffmann 1168e696b1daSHans de Goede static void ehci_finish_transfer(EHCIQueue *q, int len) 1169f1ae32a1SGerd Hoffmann { 1170f1ae32a1SGerd Hoffmann uint32_t cpage, offset; 1171f1ae32a1SGerd Hoffmann 1172e696b1daSHans de Goede if (len > 0) { 1173f1ae32a1SGerd Hoffmann /* update cpage & offset */ 1174f1ae32a1SGerd Hoffmann cpage = get_field(q->qh.token, QTD_TOKEN_CPAGE); 1175f1ae32a1SGerd Hoffmann offset = q->qh.bufptr[0] & ~QTD_BUFPTR_MASK; 1176f1ae32a1SGerd Hoffmann 1177e696b1daSHans de Goede offset += len; 1178f1ae32a1SGerd Hoffmann cpage += offset >> QTD_BUFPTR_SH; 1179f1ae32a1SGerd Hoffmann offset &= ~QTD_BUFPTR_MASK; 1180f1ae32a1SGerd Hoffmann 1181f1ae32a1SGerd Hoffmann set_field(&q->qh.token, cpage, QTD_TOKEN_CPAGE); 1182f1ae32a1SGerd Hoffmann q->qh.bufptr[0] &= QTD_BUFPTR_MASK; 1183f1ae32a1SGerd Hoffmann q->qh.bufptr[0] |= offset; 1184f1ae32a1SGerd Hoffmann } 1185f1ae32a1SGerd Hoffmann } 1186f1ae32a1SGerd Hoffmann 1187f1ae32a1SGerd Hoffmann static void ehci_async_complete_packet(USBPort *port, USBPacket *packet) 1188f1ae32a1SGerd Hoffmann { 1189eb36a88eSGerd Hoffmann EHCIPacket *p; 1190f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 1191f1ae32a1SGerd Hoffmann uint32_t portsc = s->portsc[port->index]; 1192f1ae32a1SGerd Hoffmann 1193f1ae32a1SGerd Hoffmann if (portsc & PORTSC_POWNER) { 1194f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 1195f1ae32a1SGerd Hoffmann companion->ops->complete(companion, packet); 1196f1ae32a1SGerd Hoffmann return; 1197f1ae32a1SGerd Hoffmann } 1198f1ae32a1SGerd Hoffmann 1199eb36a88eSGerd Hoffmann p = container_of(packet, EHCIPacket, packet); 1200eb36a88eSGerd Hoffmann assert(p->async == EHCI_ASYNC_INFLIGHT); 12010cae7b1aSHans de Goede 12029a77a0f5SHans de Goede if (packet->status == USB_RET_REMOVE_FROM_QUEUE) { 12030cae7b1aSHans de Goede trace_usb_ehci_packet_action(p->queue, p, "remove"); 12040cae7b1aSHans de Goede ehci_free_packet(p); 12050cae7b1aSHans de Goede return; 12060cae7b1aSHans de Goede } 12070cae7b1aSHans de Goede 12080cae7b1aSHans de Goede trace_usb_ehci_packet_action(p->queue, p, "wakeup"); 1209eb36a88eSGerd Hoffmann p->async = EHCI_ASYNC_FINISHED; 1210ae710b99SGerd Hoffmann 121180826240SHans de Goede if (!p->queue->async) { 121280826240SHans de Goede s->periodic_sched_active = PERIODIC_ACTIVE; 1213ae710b99SGerd Hoffmann } 121480826240SHans de Goede qemu_bh_schedule(s->async_bh); 1215f1ae32a1SGerd Hoffmann } 1216f1ae32a1SGerd Hoffmann 1217f1ae32a1SGerd Hoffmann static void ehci_execute_complete(EHCIQueue *q) 1218f1ae32a1SGerd Hoffmann { 1219eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1220e696b1daSHans de Goede uint32_t tbytes; 1221eb36a88eSGerd Hoffmann 1222eb36a88eSGerd Hoffmann assert(p != NULL); 1223eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1224ef5b2344SHans de Goede assert(p->async == EHCI_ASYNC_INITIALIZED || 1225ef5b2344SHans de Goede p->async == EHCI_ASYNC_FINISHED); 1226f1ae32a1SGerd Hoffmann 1227e696b1daSHans de Goede DPRINTF("execute_complete: qhaddr 0x%x, next 0x%x, qtdaddr 0x%x, " 1228e696b1daSHans de Goede "status %d, actual_length %d\n", 1229e696b1daSHans de Goede q->qhaddr, q->qh.next, q->qtdaddr, 1230e696b1daSHans de Goede p->packet.status, p->packet.actual_length); 1231f1ae32a1SGerd Hoffmann 1232e696b1daSHans de Goede switch (p->packet.status) { 1233e696b1daSHans de Goede case USB_RET_SUCCESS: 1234e696b1daSHans de Goede break; 1235f1ae32a1SGerd Hoffmann case USB_RET_IOERROR: 1236f1ae32a1SGerd Hoffmann case USB_RET_NODEV: 1237f1ae32a1SGerd Hoffmann q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_XACTERR); 1238f1ae32a1SGerd Hoffmann set_field(&q->qh.token, 0, QTD_TOKEN_CERR); 12397efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1240f1ae32a1SGerd Hoffmann break; 1241f1ae32a1SGerd Hoffmann case USB_RET_STALL: 1242f1ae32a1SGerd Hoffmann q->qh.token |= QTD_TOKEN_HALT; 12437efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1244f1ae32a1SGerd Hoffmann break; 1245f1ae32a1SGerd Hoffmann case USB_RET_NAK: 1246f1ae32a1SGerd Hoffmann set_field(&q->qh.altnext_qtd, 0, QH_ALTNEXT_NAKCNT); 1247f1ae32a1SGerd Hoffmann return; /* We're not done yet with this transaction */ 1248f1ae32a1SGerd Hoffmann case USB_RET_BABBLE: 1249f1ae32a1SGerd Hoffmann q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_BABBLE); 12507efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1251f1ae32a1SGerd Hoffmann break; 1252f1ae32a1SGerd Hoffmann default: 1253f1ae32a1SGerd Hoffmann /* should not be triggerable */ 1254e696b1daSHans de Goede fprintf(stderr, "USB invalid response %d\n", p->packet.status); 1255f1ae32a1SGerd Hoffmann assert(0); 1256f1ae32a1SGerd Hoffmann break; 1257f1ae32a1SGerd Hoffmann } 1258f1ae32a1SGerd Hoffmann 1259e696b1daSHans de Goede /* TODO check 4.12 for splits */ 1260e696b1daSHans de Goede tbytes = get_field(q->qh.token, QTD_TOKEN_TBYTES); 1261549a3c3dSHans de Goede if (tbytes && p->pid == USB_TOKEN_IN) { 1262e696b1daSHans de Goede tbytes -= p->packet.actual_length; 1263cf08a8a1SHans de Goede if (tbytes) { 1264cf08a8a1SHans de Goede /* 4.15.1.2 must raise int on a short input packet */ 1265cf08a8a1SHans de Goede ehci_raise_irq(q->ehci, USBSTS_INT); 1266cf08a8a1SHans de Goede } 1267f1ae32a1SGerd Hoffmann } else { 1268549a3c3dSHans de Goede tbytes = 0; 1269f1ae32a1SGerd Hoffmann } 1270549a3c3dSHans de Goede DPRINTF("updating tbytes to %d\n", tbytes); 1271549a3c3dSHans de Goede set_field(&q->qh.token, tbytes, QTD_TOKEN_TBYTES); 1272e696b1daSHans de Goede 1273e696b1daSHans de Goede ehci_finish_transfer(q, p->packet.actual_length); 1274e2f89926SDavid Gibson usb_packet_unmap(&p->packet, &p->sgl); 1275eb36a88eSGerd Hoffmann qemu_sglist_destroy(&p->sgl); 1276ef5b2344SHans de Goede p->async = EHCI_ASYNC_NONE; 1277f1ae32a1SGerd Hoffmann 1278f1ae32a1SGerd Hoffmann q->qh.token ^= QTD_TOKEN_DTOGGLE; 1279f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_ACTIVE; 1280f1ae32a1SGerd Hoffmann 1281f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_IOC) { 12827efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_INT); 128344272b0fSHans de Goede if (q->async) { 128444272b0fSHans de Goede q->ehci->int_req_by_async = true; 128544272b0fSHans de Goede } 1286f1ae32a1SGerd Hoffmann } 1287f1ae32a1SGerd Hoffmann } 1288f1ae32a1SGerd Hoffmann 128901e26b0eSHans de Goede /* 4.10.3 returns "again" */ 1290773dc9cdSGerd Hoffmann static int ehci_execute(EHCIPacket *p, const char *action) 1291f1ae32a1SGerd Hoffmann { 1292f1ae32a1SGerd Hoffmann USBEndpoint *ep; 1293f1ae32a1SGerd Hoffmann int endp; 12946ba43f1fSHans de Goede bool spd; 1295f1ae32a1SGerd Hoffmann 1296ef5b2344SHans de Goede assert(p->async == EHCI_ASYNC_NONE || 1297ef5b2344SHans de Goede p->async == EHCI_ASYNC_INITIALIZED); 1298ef5b2344SHans de Goede 12994224558fSGerd Hoffmann if (!(p->qtd.token & QTD_TOKEN_ACTIVE)) { 13004224558fSGerd Hoffmann fprintf(stderr, "Attempting to execute inactive qtd\n"); 130101e26b0eSHans de Goede return -1; 1302f1ae32a1SGerd Hoffmann } 1303f1ae32a1SGerd Hoffmann 1304549a3c3dSHans de Goede if (get_field(p->qtd.token, QTD_TOKEN_TBYTES) > BUFF_SIZE) { 13053a8ca08eSHans de Goede ehci_trace_guest_bug(p->queue->ehci, 13063a8ca08eSHans de Goede "guest requested more bytes than allowed"); 130701e26b0eSHans de Goede return -1; 1308f1ae32a1SGerd Hoffmann } 1309f1ae32a1SGerd Hoffmann 13104224558fSGerd Hoffmann p->pid = (p->qtd.token & QTD_TOKEN_PID_MASK) >> QTD_TOKEN_PID_SH; 1311eb36a88eSGerd Hoffmann switch (p->pid) { 1312eb36a88eSGerd Hoffmann case 0: 1313eb36a88eSGerd Hoffmann p->pid = USB_TOKEN_OUT; 1314eb36a88eSGerd Hoffmann break; 1315eb36a88eSGerd Hoffmann case 1: 1316eb36a88eSGerd Hoffmann p->pid = USB_TOKEN_IN; 1317eb36a88eSGerd Hoffmann break; 1318eb36a88eSGerd Hoffmann case 2: 1319eb36a88eSGerd Hoffmann p->pid = USB_TOKEN_SETUP; 1320eb36a88eSGerd Hoffmann break; 1321eb36a88eSGerd Hoffmann default: 1322eb36a88eSGerd Hoffmann fprintf(stderr, "bad token\n"); 1323eb36a88eSGerd Hoffmann break; 1324f1ae32a1SGerd Hoffmann } 1325f1ae32a1SGerd Hoffmann 1326ef5b2344SHans de Goede endp = get_field(p->queue->qh.epchar, QH_EPCHAR_EP); 1327ef5b2344SHans de Goede ep = usb_ep_get(p->queue->dev, p->pid, endp); 1328ef5b2344SHans de Goede 1329ef5b2344SHans de Goede if (p->async == EHCI_ASYNC_NONE) { 1330eb36a88eSGerd Hoffmann if (ehci_init_transfer(p) != 0) { 133101e26b0eSHans de Goede return -1; 1332f1ae32a1SGerd Hoffmann } 1333f1ae32a1SGerd Hoffmann 13346ba43f1fSHans de Goede spd = (p->pid == USB_TOKEN_IN && NLPTR_TBIT(p->qtd.altnext) == 0); 1335a6fb2ddbSHans de Goede usb_packet_setup(&p->packet, p->pid, ep, p->qtdaddr, spd, 1336a6fb2ddbSHans de Goede (p->qtd.token & QTD_TOKEN_IOC) != 0); 1337eb36a88eSGerd Hoffmann usb_packet_map(&p->packet, &p->sgl); 1338ef5b2344SHans de Goede p->async = EHCI_ASYNC_INITIALIZED; 1339ef5b2344SHans de Goede } 1340f1ae32a1SGerd Hoffmann 1341773dc9cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, action); 13429a77a0f5SHans de Goede usb_handle_packet(p->queue->dev, &p->packet); 13439a77a0f5SHans de Goede DPRINTF("submit: qh 0x%x next 0x%x qtd 0x%x pid 0x%x len %zd endp 0x%x " 13449a77a0f5SHans de Goede "status %d actual_length %d\n", p->queue->qhaddr, p->qtd.next, 13459a77a0f5SHans de Goede p->qtdaddr, p->pid, p->packet.iov.size, endp, p->packet.status, 13469a77a0f5SHans de Goede p->packet.actual_length); 1347f1ae32a1SGerd Hoffmann 13489a77a0f5SHans de Goede if (p->packet.actual_length > BUFF_SIZE) { 1349f1ae32a1SGerd Hoffmann fprintf(stderr, "ret from usb_handle_packet > BUFF_SIZE\n"); 135001e26b0eSHans de Goede return -1; 1351f1ae32a1SGerd Hoffmann } 1352f1ae32a1SGerd Hoffmann 135301e26b0eSHans de Goede return 1; 1354f1ae32a1SGerd Hoffmann } 1355f1ae32a1SGerd Hoffmann 1356f1ae32a1SGerd Hoffmann /* 4.7.2 1357f1ae32a1SGerd Hoffmann */ 1358f1ae32a1SGerd Hoffmann 1359f1ae32a1SGerd Hoffmann static int ehci_process_itd(EHCIState *ehci, 1360e983395dSGerd Hoffmann EHCIitd *itd, 1361e983395dSGerd Hoffmann uint32_t addr) 1362f1ae32a1SGerd Hoffmann { 1363f1ae32a1SGerd Hoffmann USBDevice *dev; 1364f1ae32a1SGerd Hoffmann USBEndpoint *ep; 1365f1ae32a1SGerd Hoffmann uint32_t i, len, pid, dir, devaddr, endp; 1366f1ae32a1SGerd Hoffmann uint32_t pg, off, ptr1, ptr2, max, mult; 1367f1ae32a1SGerd Hoffmann 136880826240SHans de Goede ehci->periodic_sched_active = PERIODIC_ACTIVE; 136980826240SHans de Goede 1370f1ae32a1SGerd Hoffmann dir =(itd->bufptr[1] & ITD_BUFPTR_DIRECTION); 1371f1ae32a1SGerd Hoffmann devaddr = get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR); 1372f1ae32a1SGerd Hoffmann endp = get_field(itd->bufptr[0], ITD_BUFPTR_EP); 1373f1ae32a1SGerd Hoffmann max = get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT); 1374f1ae32a1SGerd Hoffmann mult = get_field(itd->bufptr[2], ITD_BUFPTR_MULT); 1375f1ae32a1SGerd Hoffmann 1376f1ae32a1SGerd Hoffmann for(i = 0; i < 8; i++) { 1377f1ae32a1SGerd Hoffmann if (itd->transact[i] & ITD_XACT_ACTIVE) { 1378f1ae32a1SGerd Hoffmann pg = get_field(itd->transact[i], ITD_XACT_PGSEL); 1379f1ae32a1SGerd Hoffmann off = itd->transact[i] & ITD_XACT_OFFSET_MASK; 1380f1ae32a1SGerd Hoffmann ptr1 = (itd->bufptr[pg] & ITD_BUFPTR_MASK); 1381f1ae32a1SGerd Hoffmann ptr2 = (itd->bufptr[pg+1] & ITD_BUFPTR_MASK); 1382f1ae32a1SGerd Hoffmann len = get_field(itd->transact[i], ITD_XACT_LENGTH); 1383f1ae32a1SGerd Hoffmann 1384f1ae32a1SGerd Hoffmann if (len > max * mult) { 1385f1ae32a1SGerd Hoffmann len = max * mult; 1386f1ae32a1SGerd Hoffmann } 1387f1ae32a1SGerd Hoffmann 1388f1ae32a1SGerd Hoffmann if (len > BUFF_SIZE) { 138901e26b0eSHans de Goede return -1; 1390f1ae32a1SGerd Hoffmann } 1391f1ae32a1SGerd Hoffmann 13927ae6ce02SPeter Crosthwaite qemu_sglist_init(&ehci->isgl, 2, ehci->dma); 1393f1ae32a1SGerd Hoffmann if (off + len > 4096) { 1394f1ae32a1SGerd Hoffmann /* transfer crosses page border */ 1395f1ae32a1SGerd Hoffmann uint32_t len2 = off + len - 4096; 1396f1ae32a1SGerd Hoffmann uint32_t len1 = len - len2; 1397f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr1 + off, len1); 1398f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr2, len2); 1399f1ae32a1SGerd Hoffmann } else { 1400f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr1 + off, len); 1401f1ae32a1SGerd Hoffmann } 1402f1ae32a1SGerd Hoffmann 1403f1ae32a1SGerd Hoffmann pid = dir ? USB_TOKEN_IN : USB_TOKEN_OUT; 1404f1ae32a1SGerd Hoffmann 1405f1ae32a1SGerd Hoffmann dev = ehci_find_device(ehci, devaddr); 1406f1ae32a1SGerd Hoffmann ep = usb_ep_get(dev, pid, endp); 14077ce86aa1SHans de Goede if (ep && ep->type == USB_ENDPOINT_XFER_ISOC) { 1408a6fb2ddbSHans de Goede usb_packet_setup(&ehci->ipacket, pid, ep, addr, false, 1409a6fb2ddbSHans de Goede (itd->transact[i] & ITD_XACT_IOC) != 0); 1410f1ae32a1SGerd Hoffmann usb_packet_map(&ehci->ipacket, &ehci->isgl); 14119a77a0f5SHans de Goede usb_handle_packet(dev, &ehci->ipacket); 1412e2f89926SDavid Gibson usb_packet_unmap(&ehci->ipacket, &ehci->isgl); 1413f1ae32a1SGerd Hoffmann } else { 1414f1ae32a1SGerd Hoffmann DPRINTF("ISOCH: attempt to addess non-iso endpoint\n"); 1415e696b1daSHans de Goede ehci->ipacket.status = USB_RET_NAK; 1416e696b1daSHans de Goede ehci->ipacket.actual_length = 0; 1417f1ae32a1SGerd Hoffmann } 1418f1ae32a1SGerd Hoffmann qemu_sglist_destroy(&ehci->isgl); 1419f1ae32a1SGerd Hoffmann 1420e696b1daSHans de Goede switch (ehci->ipacket.status) { 1421e696b1daSHans de Goede case USB_RET_SUCCESS: 1422e696b1daSHans de Goede break; 1423f1ae32a1SGerd Hoffmann default: 1424e696b1daSHans de Goede fprintf(stderr, "Unexpected iso usb result: %d\n", 1425e696b1daSHans de Goede ehci->ipacket.status); 1426f1ae32a1SGerd Hoffmann /* Fall through */ 1427f1ae32a1SGerd Hoffmann case USB_RET_IOERROR: 1428f1ae32a1SGerd Hoffmann case USB_RET_NODEV: 1429f1ae32a1SGerd Hoffmann /* 3.3.2: XACTERR is only allowed on IN transactions */ 1430f1ae32a1SGerd Hoffmann if (dir) { 1431f1ae32a1SGerd Hoffmann itd->transact[i] |= ITD_XACT_XACTERR; 14327efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_ERRINT); 1433f1ae32a1SGerd Hoffmann } 1434f1ae32a1SGerd Hoffmann break; 1435f1ae32a1SGerd Hoffmann case USB_RET_BABBLE: 1436f1ae32a1SGerd Hoffmann itd->transact[i] |= ITD_XACT_BABBLE; 14377efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_ERRINT); 1438f1ae32a1SGerd Hoffmann break; 1439f1ae32a1SGerd Hoffmann case USB_RET_NAK: 1440f1ae32a1SGerd Hoffmann /* no data for us, so do a zero-length transfer */ 1441e696b1daSHans de Goede ehci->ipacket.actual_length = 0; 1442f1ae32a1SGerd Hoffmann break; 1443f1ae32a1SGerd Hoffmann } 1444f1ae32a1SGerd Hoffmann if (!dir) { 1445e696b1daSHans de Goede set_field(&itd->transact[i], len - ehci->ipacket.actual_length, 1446e696b1daSHans de Goede ITD_XACT_LENGTH); /* OUT */ 1447f1ae32a1SGerd Hoffmann } else { 1448e696b1daSHans de Goede set_field(&itd->transact[i], ehci->ipacket.actual_length, 1449e696b1daSHans de Goede ITD_XACT_LENGTH); /* IN */ 1450f1ae32a1SGerd Hoffmann } 1451f1ae32a1SGerd Hoffmann if (itd->transact[i] & ITD_XACT_IOC) { 14527efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_INT); 1453f1ae32a1SGerd Hoffmann } 1454f1ae32a1SGerd Hoffmann itd->transact[i] &= ~ITD_XACT_ACTIVE; 1455f1ae32a1SGerd Hoffmann } 1456f1ae32a1SGerd Hoffmann } 1457f1ae32a1SGerd Hoffmann return 0; 1458f1ae32a1SGerd Hoffmann } 1459f1ae32a1SGerd Hoffmann 1460cd665715SGerd Hoffmann 1461f1ae32a1SGerd Hoffmann /* This state is the entry point for asynchronous schedule 1462f1ae32a1SGerd Hoffmann * processing. Entry here consitutes a EHCI start event state (4.8.5) 1463f1ae32a1SGerd Hoffmann */ 1464f1ae32a1SGerd Hoffmann static int ehci_state_waitlisthead(EHCIState *ehci, int async) 1465f1ae32a1SGerd Hoffmann { 1466f1ae32a1SGerd Hoffmann EHCIqh qh; 1467f1ae32a1SGerd Hoffmann int i = 0; 1468f1ae32a1SGerd Hoffmann int again = 0; 1469f1ae32a1SGerd Hoffmann uint32_t entry = ehci->asynclistaddr; 1470f1ae32a1SGerd Hoffmann 1471f1ae32a1SGerd Hoffmann /* set reclamation flag at start event (4.8.6) */ 1472f1ae32a1SGerd Hoffmann if (async) { 1473f1ae32a1SGerd Hoffmann ehci_set_usbsts(ehci, USBSTS_REC); 1474f1ae32a1SGerd Hoffmann } 1475f1ae32a1SGerd Hoffmann 14768f5457ebSHans de Goede ehci_queues_rip_unused(ehci, async); 1477f1ae32a1SGerd Hoffmann 1478f1ae32a1SGerd Hoffmann /* Find the head of the list (4.9.1.1) */ 1479f1ae32a1SGerd Hoffmann for(i = 0; i < MAX_QH; i++) { 148055903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &qh, 148155903f1dSGerd Hoffmann sizeof(EHCIqh) >> 2) < 0) { 148255903f1dSGerd Hoffmann return 0; 148355903f1dSGerd Hoffmann } 1484f1ae32a1SGerd Hoffmann ehci_trace_qh(NULL, NLPTR_GET(entry), &qh); 1485f1ae32a1SGerd Hoffmann 1486f1ae32a1SGerd Hoffmann if (qh.epchar & QH_EPCHAR_H) { 1487f1ae32a1SGerd Hoffmann if (async) { 1488f1ae32a1SGerd Hoffmann entry |= (NLPTR_TYPE_QH << 1); 1489f1ae32a1SGerd Hoffmann } 1490f1ae32a1SGerd Hoffmann 1491f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, entry); 1492f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1493f1ae32a1SGerd Hoffmann again = 1; 1494f1ae32a1SGerd Hoffmann goto out; 1495f1ae32a1SGerd Hoffmann } 1496f1ae32a1SGerd Hoffmann 1497f1ae32a1SGerd Hoffmann entry = qh.next; 1498f1ae32a1SGerd Hoffmann if (entry == ehci->asynclistaddr) { 1499f1ae32a1SGerd Hoffmann break; 1500f1ae32a1SGerd Hoffmann } 1501f1ae32a1SGerd Hoffmann } 1502f1ae32a1SGerd Hoffmann 1503f1ae32a1SGerd Hoffmann /* no head found for list. */ 1504f1ae32a1SGerd Hoffmann 1505f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1506f1ae32a1SGerd Hoffmann 1507f1ae32a1SGerd Hoffmann out: 1508f1ae32a1SGerd Hoffmann return again; 1509f1ae32a1SGerd Hoffmann } 1510f1ae32a1SGerd Hoffmann 1511f1ae32a1SGerd Hoffmann 1512f1ae32a1SGerd Hoffmann /* This state is the entry point for periodic schedule processing as 1513f1ae32a1SGerd Hoffmann * well as being a continuation state for async processing. 1514f1ae32a1SGerd Hoffmann */ 1515f1ae32a1SGerd Hoffmann static int ehci_state_fetchentry(EHCIState *ehci, int async) 1516f1ae32a1SGerd Hoffmann { 1517f1ae32a1SGerd Hoffmann int again = 0; 1518f1ae32a1SGerd Hoffmann uint32_t entry = ehci_get_fetch_addr(ehci, async); 1519f1ae32a1SGerd Hoffmann 1520f1ae32a1SGerd Hoffmann if (NLPTR_TBIT(entry)) { 1521f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1522f1ae32a1SGerd Hoffmann goto out; 1523f1ae32a1SGerd Hoffmann } 1524f1ae32a1SGerd Hoffmann 1525f1ae32a1SGerd Hoffmann /* section 4.8, only QH in async schedule */ 1526f1ae32a1SGerd Hoffmann if (async && (NLPTR_TYPE_GET(entry) != NLPTR_TYPE_QH)) { 1527f1ae32a1SGerd Hoffmann fprintf(stderr, "non queue head request in async schedule\n"); 1528f1ae32a1SGerd Hoffmann return -1; 1529f1ae32a1SGerd Hoffmann } 1530f1ae32a1SGerd Hoffmann 1531f1ae32a1SGerd Hoffmann switch (NLPTR_TYPE_GET(entry)) { 1532f1ae32a1SGerd Hoffmann case NLPTR_TYPE_QH: 1533f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHQH); 1534f1ae32a1SGerd Hoffmann again = 1; 1535f1ae32a1SGerd Hoffmann break; 1536f1ae32a1SGerd Hoffmann 1537f1ae32a1SGerd Hoffmann case NLPTR_TYPE_ITD: 1538f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHITD); 1539f1ae32a1SGerd Hoffmann again = 1; 1540f1ae32a1SGerd Hoffmann break; 1541f1ae32a1SGerd Hoffmann 1542f1ae32a1SGerd Hoffmann case NLPTR_TYPE_STITD: 1543f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHSITD); 1544f1ae32a1SGerd Hoffmann again = 1; 1545f1ae32a1SGerd Hoffmann break; 1546f1ae32a1SGerd Hoffmann 1547f1ae32a1SGerd Hoffmann default: 1548f1ae32a1SGerd Hoffmann /* TODO: handle FSTN type */ 1549f1ae32a1SGerd Hoffmann fprintf(stderr, "FETCHENTRY: entry at %X is of type %d " 1550f1ae32a1SGerd Hoffmann "which is not supported yet\n", entry, NLPTR_TYPE_GET(entry)); 1551f1ae32a1SGerd Hoffmann return -1; 1552f1ae32a1SGerd Hoffmann } 1553f1ae32a1SGerd Hoffmann 1554f1ae32a1SGerd Hoffmann out: 1555f1ae32a1SGerd Hoffmann return again; 1556f1ae32a1SGerd Hoffmann } 1557f1ae32a1SGerd Hoffmann 1558f1ae32a1SGerd Hoffmann static EHCIQueue *ehci_state_fetchqh(EHCIState *ehci, int async) 1559f1ae32a1SGerd Hoffmann { 1560eb36a88eSGerd Hoffmann EHCIPacket *p; 1561dafe31fcSHans de Goede uint32_t entry, devaddr, endp; 1562f1ae32a1SGerd Hoffmann EHCIQueue *q; 1563dafe31fcSHans de Goede EHCIqh qh; 1564f1ae32a1SGerd Hoffmann 1565f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1566f1ae32a1SGerd Hoffmann q = ehci_find_queue_by_qh(ehci, entry, async); 1567f1ae32a1SGerd Hoffmann if (NULL == q) { 15688f6d5e26SGerd Hoffmann q = ehci_alloc_queue(ehci, entry, async); 1569f1ae32a1SGerd Hoffmann } 1570eb36a88eSGerd Hoffmann p = QTAILQ_FIRST(&q->packets); 1571f1ae32a1SGerd Hoffmann 15728f6d5e26SGerd Hoffmann q->seen++; 1573f1ae32a1SGerd Hoffmann if (q->seen > 1) { 1574f1ae32a1SGerd Hoffmann /* we are going in circles -- stop processing */ 1575f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1576f1ae32a1SGerd Hoffmann q = NULL; 1577f1ae32a1SGerd Hoffmann goto out; 1578f1ae32a1SGerd Hoffmann } 1579f1ae32a1SGerd Hoffmann 158055903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(q->qhaddr), 158155903f1dSGerd Hoffmann (uint32_t *) &qh, sizeof(EHCIqh) >> 2) < 0) { 158255903f1dSGerd Hoffmann q = NULL; 158355903f1dSGerd Hoffmann goto out; 158455903f1dSGerd Hoffmann } 1585dafe31fcSHans de Goede ehci_trace_qh(q, NLPTR_GET(q->qhaddr), &qh); 1586f1ae32a1SGerd Hoffmann 1587dafe31fcSHans de Goede /* 1588dafe31fcSHans de Goede * The overlay area of the qh should never be changed by the guest, 1589dafe31fcSHans de Goede * except when idle, in which case the reset is a nop. 1590dafe31fcSHans de Goede */ 1591dafe31fcSHans de Goede devaddr = get_field(qh.epchar, QH_EPCHAR_DEVADDR); 1592dafe31fcSHans de Goede endp = get_field(qh.epchar, QH_EPCHAR_EP); 1593dafe31fcSHans de Goede if ((devaddr != get_field(q->qh.epchar, QH_EPCHAR_DEVADDR)) || 1594dafe31fcSHans de Goede (endp != get_field(q->qh.epchar, QH_EPCHAR_EP)) || 15952c7b15c1SHans de Goede (qh.current_qtd != q->qh.current_qtd) || 15962c7b15c1SHans de Goede (q->async && qh.next_qtd != q->qh.next_qtd) || 15972c7b15c1SHans de Goede (memcmp(&qh.altnext_qtd, &q->qh.altnext_qtd, 15982c7b15c1SHans de Goede 7 * sizeof(uint32_t)) != 0) || 1599dafe31fcSHans de Goede (q->dev != NULL && q->dev->addr != devaddr)) { 16005c514681SGerd Hoffmann if (ehci_reset_queue(q) > 0) { 16015c514681SGerd Hoffmann ehci_trace_guest_bug(ehci, "guest updated active QH"); 16025c514681SGerd Hoffmann } 1603dafe31fcSHans de Goede p = NULL; 1604e59928b3SGerd Hoffmann } 1605dafe31fcSHans de Goede q->qh = qh; 1606dafe31fcSHans de Goede 1607cae5d3f4SHans de Goede q->transact_ctr = get_field(q->qh.epcap, QH_EPCAP_MULT); 1608cae5d3f4SHans de Goede if (q->transact_ctr == 0) { /* Guest bug in some versions of windows */ 1609cae5d3f4SHans de Goede q->transact_ctr = 4; 1610cae5d3f4SHans de Goede } 1611cae5d3f4SHans de Goede 1612e59928b3SGerd Hoffmann if (q->dev == NULL) { 1613e59928b3SGerd Hoffmann q->dev = ehci_find_device(q->ehci, devaddr); 1614e59928b3SGerd Hoffmann } 1615e59928b3SGerd Hoffmann 1616eb36a88eSGerd Hoffmann if (p && p->async == EHCI_ASYNC_FINISHED) { 1617f1ae32a1SGerd Hoffmann /* I/O finished -- continue processing queue */ 1618773dc9cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "complete"); 1619f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_EXECUTING); 1620f1ae32a1SGerd Hoffmann goto out; 1621f1ae32a1SGerd Hoffmann } 1622f1ae32a1SGerd Hoffmann 1623f1ae32a1SGerd Hoffmann if (async && (q->qh.epchar & QH_EPCHAR_H)) { 1624f1ae32a1SGerd Hoffmann 1625f1ae32a1SGerd Hoffmann /* EHCI spec version 1.0 Section 4.8.3 & 4.10.1 */ 1626f1ae32a1SGerd Hoffmann if (ehci->usbsts & USBSTS_REC) { 1627f1ae32a1SGerd Hoffmann ehci_clear_usbsts(ehci, USBSTS_REC); 1628f1ae32a1SGerd Hoffmann } else { 1629f1ae32a1SGerd Hoffmann DPRINTF("FETCHQH: QH 0x%08x. H-bit set, reclamation status reset" 1630f1ae32a1SGerd Hoffmann " - done processing\n", q->qhaddr); 1631f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1632f1ae32a1SGerd Hoffmann q = NULL; 1633f1ae32a1SGerd Hoffmann goto out; 1634f1ae32a1SGerd Hoffmann } 1635f1ae32a1SGerd Hoffmann } 1636f1ae32a1SGerd Hoffmann 1637f1ae32a1SGerd Hoffmann #if EHCI_DEBUG 1638f1ae32a1SGerd Hoffmann if (q->qhaddr != q->qh.next) { 1639f1ae32a1SGerd Hoffmann DPRINTF("FETCHQH: QH 0x%08x (h %x halt %x active %x) next 0x%08x\n", 1640f1ae32a1SGerd Hoffmann q->qhaddr, 1641f1ae32a1SGerd Hoffmann q->qh.epchar & QH_EPCHAR_H, 1642f1ae32a1SGerd Hoffmann q->qh.token & QTD_TOKEN_HALT, 1643f1ae32a1SGerd Hoffmann q->qh.token & QTD_TOKEN_ACTIVE, 1644f1ae32a1SGerd Hoffmann q->qh.next); 1645f1ae32a1SGerd Hoffmann } 1646f1ae32a1SGerd Hoffmann #endif 1647f1ae32a1SGerd Hoffmann 1648f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_HALT) { 1649f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_HORIZONTALQH); 1650f1ae32a1SGerd Hoffmann 1651f1ae32a1SGerd Hoffmann } else if ((q->qh.token & QTD_TOKEN_ACTIVE) && 1652f1ae32a1SGerd Hoffmann (NLPTR_TBIT(q->qh.current_qtd) == 0)) { 1653f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.current_qtd; 1654f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHQTD); 1655f1ae32a1SGerd Hoffmann 1656f1ae32a1SGerd Hoffmann } else { 1657f1ae32a1SGerd Hoffmann /* EHCI spec version 1.0 Section 4.10.2 */ 1658f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ADVANCEQUEUE); 1659f1ae32a1SGerd Hoffmann } 1660f1ae32a1SGerd Hoffmann 1661f1ae32a1SGerd Hoffmann out: 1662f1ae32a1SGerd Hoffmann return q; 1663f1ae32a1SGerd Hoffmann } 1664f1ae32a1SGerd Hoffmann 1665f1ae32a1SGerd Hoffmann static int ehci_state_fetchitd(EHCIState *ehci, int async) 1666f1ae32a1SGerd Hoffmann { 1667f1ae32a1SGerd Hoffmann uint32_t entry; 1668f1ae32a1SGerd Hoffmann EHCIitd itd; 1669f1ae32a1SGerd Hoffmann 1670f1ae32a1SGerd Hoffmann assert(!async); 1671f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1672f1ae32a1SGerd Hoffmann 167355903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd, 167455903f1dSGerd Hoffmann sizeof(EHCIitd) >> 2) < 0) { 167555903f1dSGerd Hoffmann return -1; 167655903f1dSGerd Hoffmann } 1677f1ae32a1SGerd Hoffmann ehci_trace_itd(ehci, entry, &itd); 1678f1ae32a1SGerd Hoffmann 1679e983395dSGerd Hoffmann if (ehci_process_itd(ehci, &itd, entry) != 0) { 1680f1ae32a1SGerd Hoffmann return -1; 1681f1ae32a1SGerd Hoffmann } 1682f1ae32a1SGerd Hoffmann 1683f1ae32a1SGerd Hoffmann put_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd, 1684f1ae32a1SGerd Hoffmann sizeof(EHCIitd) >> 2); 1685f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, itd.next); 1686f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1687f1ae32a1SGerd Hoffmann 1688f1ae32a1SGerd Hoffmann return 1; 1689f1ae32a1SGerd Hoffmann } 1690f1ae32a1SGerd Hoffmann 1691f1ae32a1SGerd Hoffmann static int ehci_state_fetchsitd(EHCIState *ehci, int async) 1692f1ae32a1SGerd Hoffmann { 1693f1ae32a1SGerd Hoffmann uint32_t entry; 1694f1ae32a1SGerd Hoffmann EHCIsitd sitd; 1695f1ae32a1SGerd Hoffmann 1696f1ae32a1SGerd Hoffmann assert(!async); 1697f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1698f1ae32a1SGerd Hoffmann 169955903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *)&sitd, 170055903f1dSGerd Hoffmann sizeof(EHCIsitd) >> 2) < 0) { 170155903f1dSGerd Hoffmann return 0; 170255903f1dSGerd Hoffmann } 1703f1ae32a1SGerd Hoffmann ehci_trace_sitd(ehci, entry, &sitd); 1704f1ae32a1SGerd Hoffmann 1705f1ae32a1SGerd Hoffmann if (!(sitd.results & SITD_RESULTS_ACTIVE)) { 1706f1ae32a1SGerd Hoffmann /* siTD is not active, nothing to do */; 1707f1ae32a1SGerd Hoffmann } else { 1708f1ae32a1SGerd Hoffmann /* TODO: split transfers are not implemented */ 1709f1ae32a1SGerd Hoffmann fprintf(stderr, "WARNING: Skipping active siTD\n"); 1710f1ae32a1SGerd Hoffmann } 1711f1ae32a1SGerd Hoffmann 1712f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, sitd.next); 1713f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1714f1ae32a1SGerd Hoffmann return 1; 1715f1ae32a1SGerd Hoffmann } 1716f1ae32a1SGerd Hoffmann 1717f1ae32a1SGerd Hoffmann /* Section 4.10.2 - paragraph 3 */ 1718ae0138a8SGerd Hoffmann static int ehci_state_advqueue(EHCIQueue *q) 1719f1ae32a1SGerd Hoffmann { 1720f1ae32a1SGerd Hoffmann #if 0 1721f1ae32a1SGerd Hoffmann /* TO-DO: 4.10.2 - paragraph 2 1722f1ae32a1SGerd Hoffmann * if I-bit is set to 1 and QH is not active 1723f1ae32a1SGerd Hoffmann * go to horizontal QH 1724f1ae32a1SGerd Hoffmann */ 1725f1ae32a1SGerd Hoffmann if (I-bit set) { 1726f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_HORIZONTALQH); 1727f1ae32a1SGerd Hoffmann goto out; 1728f1ae32a1SGerd Hoffmann } 1729f1ae32a1SGerd Hoffmann #endif 1730f1ae32a1SGerd Hoffmann 1731f1ae32a1SGerd Hoffmann /* 1732f1ae32a1SGerd Hoffmann * want data and alt-next qTD is valid 1733f1ae32a1SGerd Hoffmann */ 1734f1ae32a1SGerd Hoffmann if (((q->qh.token & QTD_TOKEN_TBYTES_MASK) != 0) && 1735f1ae32a1SGerd Hoffmann (NLPTR_TBIT(q->qh.altnext_qtd) == 0)) { 1736f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.altnext_qtd; 1737ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHQTD); 1738f1ae32a1SGerd Hoffmann 1739f1ae32a1SGerd Hoffmann /* 1740f1ae32a1SGerd Hoffmann * next qTD is valid 1741f1ae32a1SGerd Hoffmann */ 1742f1ae32a1SGerd Hoffmann } else if (NLPTR_TBIT(q->qh.next_qtd) == 0) { 1743f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.next_qtd; 1744ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHQTD); 1745f1ae32a1SGerd Hoffmann 1746f1ae32a1SGerd Hoffmann /* 1747f1ae32a1SGerd Hoffmann * no valid qTD, try next QH 1748f1ae32a1SGerd Hoffmann */ 1749f1ae32a1SGerd Hoffmann } else { 1750ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1751f1ae32a1SGerd Hoffmann } 1752f1ae32a1SGerd Hoffmann 1753f1ae32a1SGerd Hoffmann return 1; 1754f1ae32a1SGerd Hoffmann } 1755f1ae32a1SGerd Hoffmann 1756f1ae32a1SGerd Hoffmann /* Section 4.10.2 - paragraph 4 */ 1757ae0138a8SGerd Hoffmann static int ehci_state_fetchqtd(EHCIQueue *q) 1758f1ae32a1SGerd Hoffmann { 1759eb36a88eSGerd Hoffmann EHCIqtd qtd; 1760eb36a88eSGerd Hoffmann EHCIPacket *p; 1761b4ea8664SHans de Goede int again = 1; 1762f1ae32a1SGerd Hoffmann 176355903f1dSGerd Hoffmann if (get_dwords(q->ehci, NLPTR_GET(q->qtdaddr), (uint32_t *) &qtd, 176455903f1dSGerd Hoffmann sizeof(EHCIqtd) >> 2) < 0) { 176555903f1dSGerd Hoffmann return 0; 176655903f1dSGerd Hoffmann } 1767eb36a88eSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(q->qtdaddr), &qtd); 1768f1ae32a1SGerd Hoffmann 1769773dc9cdSGerd Hoffmann p = QTAILQ_FIRST(&q->packets); 1770287fd3f1SGerd Hoffmann if (p != NULL) { 1771287fd3f1SGerd Hoffmann if (p->qtdaddr != q->qtdaddr || 17722c7b15c1SHans de Goede (q->async && !NLPTR_TBIT(p->qtd.next) && 17732c7b15c1SHans de Goede (p->qtd.next != qtd.next)) || 1774287fd3f1SGerd Hoffmann (!NLPTR_TBIT(p->qtd.altnext) && (p->qtd.altnext != qtd.altnext)) || 1775287fd3f1SGerd Hoffmann p->qtd.bufptr[0] != qtd.bufptr[0]) { 1776287fd3f1SGerd Hoffmann ehci_cancel_queue(q); 17775c514681SGerd Hoffmann ehci_trace_guest_bug(q->ehci, "guest updated active QH or qTD"); 1778287fd3f1SGerd Hoffmann p = NULL; 1779287fd3f1SGerd Hoffmann } else { 1780287fd3f1SGerd Hoffmann p->qtd = qtd; 1781287fd3f1SGerd Hoffmann ehci_qh_do_overlay(q); 1782287fd3f1SGerd Hoffmann } 1783287fd3f1SGerd Hoffmann } 1784287fd3f1SGerd Hoffmann 1785287fd3f1SGerd Hoffmann if (!(qtd.token & QTD_TOKEN_ACTIVE)) { 1786287fd3f1SGerd Hoffmann if (p != NULL) { 1787287fd3f1SGerd Hoffmann /* transfer canceled by guest (clear active) */ 1788c7cdca3bSGerd Hoffmann ehci_cancel_queue(q); 1789c7cdca3bSGerd Hoffmann p = NULL; 1790773dc9cdSGerd Hoffmann } 1791287fd3f1SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1792287fd3f1SGerd Hoffmann } else if (p != NULL) { 1793adf47834SHans de Goede switch (p->async) { 1794adf47834SHans de Goede case EHCI_ASYNC_NONE: 1795ef5b2344SHans de Goede case EHCI_ASYNC_INITIALIZED: 1796cae5d3f4SHans de Goede /* Not yet executed (MULT), or previously nacked (int) packet */ 1797adf47834SHans de Goede ehci_set_state(q->ehci, q->async, EST_EXECUTE); 1798adf47834SHans de Goede break; 1799adf47834SHans de Goede case EHCI_ASYNC_INFLIGHT: 1800b4ea8664SHans de Goede /* Check if the guest has added new tds to the queue */ 180101e26b0eSHans de Goede again = ehci_fill_queue(QTAILQ_LAST(&q->packets, pkts_head)); 1802ef5b2344SHans de Goede /* Unfinished async handled packet, go horizontal */ 1803ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1804adf47834SHans de Goede break; 1805adf47834SHans de Goede case EHCI_ASYNC_FINISHED: 1806cf1f8169SHans de Goede /* 1807cf1f8169SHans de Goede * We get here when advqueue moves to a packet which is already 1808cf1f8169SHans de Goede * finished, which can happen with packets queued up by fill_queue 1809cf1f8169SHans de Goede */ 1810ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTING); 1811adf47834SHans de Goede break; 1812773dc9cdSGerd Hoffmann } 1813287fd3f1SGerd Hoffmann } else { 1814eb36a88eSGerd Hoffmann p = ehci_alloc_packet(q); 1815eb36a88eSGerd Hoffmann p->qtdaddr = q->qtdaddr; 1816eb36a88eSGerd Hoffmann p->qtd = qtd; 1817ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTE); 1818f1ae32a1SGerd Hoffmann } 1819f1ae32a1SGerd Hoffmann 1820f1ae32a1SGerd Hoffmann return again; 1821f1ae32a1SGerd Hoffmann } 1822f1ae32a1SGerd Hoffmann 1823ae0138a8SGerd Hoffmann static int ehci_state_horizqh(EHCIQueue *q) 1824f1ae32a1SGerd Hoffmann { 1825f1ae32a1SGerd Hoffmann int again = 0; 1826f1ae32a1SGerd Hoffmann 1827ae0138a8SGerd Hoffmann if (ehci_get_fetch_addr(q->ehci, q->async) != q->qh.next) { 1828ae0138a8SGerd Hoffmann ehci_set_fetch_addr(q->ehci, q->async, q->qh.next); 1829ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHENTRY); 1830f1ae32a1SGerd Hoffmann again = 1; 1831f1ae32a1SGerd Hoffmann } else { 1832ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_ACTIVE); 1833f1ae32a1SGerd Hoffmann } 1834f1ae32a1SGerd Hoffmann 1835f1ae32a1SGerd Hoffmann return again; 1836f1ae32a1SGerd Hoffmann } 1837f1ae32a1SGerd Hoffmann 183801e26b0eSHans de Goede /* Returns "again" */ 1839eff6dce7SHans de Goede static int ehci_fill_queue(EHCIPacket *p) 1840773dc9cdSGerd Hoffmann { 184136dfe324SHans de Goede USBEndpoint *ep = p->packet.ep; 1842773dc9cdSGerd Hoffmann EHCIQueue *q = p->queue; 1843773dc9cdSGerd Hoffmann EHCIqtd qtd = p->qtd; 1844601a2347SHans de Goede uint32_t qtdaddr; 1845773dc9cdSGerd Hoffmann 1846773dc9cdSGerd Hoffmann for (;;) { 1847773dc9cdSGerd Hoffmann if (NLPTR_TBIT(qtd.next) != 0) { 1848773dc9cdSGerd Hoffmann break; 1849773dc9cdSGerd Hoffmann } 1850773dc9cdSGerd Hoffmann qtdaddr = qtd.next; 1851e3a36bceSHans de Goede /* 1852e3a36bceSHans de Goede * Detect circular td lists, Windows creates these, counting on the 1853e3a36bceSHans de Goede * active bit going low after execution to make the queue stop. 1854e3a36bceSHans de Goede */ 1855601a2347SHans de Goede QTAILQ_FOREACH(p, &q->packets, next) { 1856601a2347SHans de Goede if (p->qtdaddr == qtdaddr) { 1857601a2347SHans de Goede goto leave; 1858601a2347SHans de Goede } 1859e3a36bceSHans de Goede } 186055903f1dSGerd Hoffmann if (get_dwords(q->ehci, NLPTR_GET(qtdaddr), 186155903f1dSGerd Hoffmann (uint32_t *) &qtd, sizeof(EHCIqtd) >> 2) < 0) { 186255903f1dSGerd Hoffmann return -1; 186355903f1dSGerd Hoffmann } 1864773dc9cdSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(qtdaddr), &qtd); 1865773dc9cdSGerd Hoffmann if (!(qtd.token & QTD_TOKEN_ACTIVE)) { 1866773dc9cdSGerd Hoffmann break; 1867773dc9cdSGerd Hoffmann } 1868773dc9cdSGerd Hoffmann p = ehci_alloc_packet(q); 1869773dc9cdSGerd Hoffmann p->qtdaddr = qtdaddr; 1870773dc9cdSGerd Hoffmann p->qtd = qtd; 187101e26b0eSHans de Goede if (ehci_execute(p, "queue") == -1) { 187201e26b0eSHans de Goede return -1; 1873eff6dce7SHans de Goede } 187401e26b0eSHans de Goede assert(p->packet.status == USB_RET_ASYNC); 1875773dc9cdSGerd Hoffmann p->async = EHCI_ASYNC_INFLIGHT; 1876773dc9cdSGerd Hoffmann } 1877601a2347SHans de Goede leave: 187836dfe324SHans de Goede usb_device_flush_ep_queue(ep->dev, ep); 187901e26b0eSHans de Goede return 1; 1880773dc9cdSGerd Hoffmann } 1881773dc9cdSGerd Hoffmann 1882ae0138a8SGerd Hoffmann static int ehci_state_execute(EHCIQueue *q) 1883f1ae32a1SGerd Hoffmann { 1884eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1885f1ae32a1SGerd Hoffmann int again = 0; 1886f1ae32a1SGerd Hoffmann 1887eb36a88eSGerd Hoffmann assert(p != NULL); 1888eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1889eb36a88eSGerd Hoffmann 1890f1ae32a1SGerd Hoffmann if (ehci_qh_do_overlay(q) != 0) { 1891f1ae32a1SGerd Hoffmann return -1; 1892f1ae32a1SGerd Hoffmann } 1893f1ae32a1SGerd Hoffmann 1894f1ae32a1SGerd Hoffmann // TODO verify enough time remains in the uframe as in 4.4.1.1 1895f1ae32a1SGerd Hoffmann // TODO write back ptr to async list when done or out of time 1896f1ae32a1SGerd Hoffmann 1897cae5d3f4SHans de Goede /* 4.10.3, bottom of page 82, go horizontal on transaction counter == 0 */ 1898cae5d3f4SHans de Goede if (!q->async && q->transact_ctr == 0) { 1899ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1900f1ae32a1SGerd Hoffmann again = 1; 1901f1ae32a1SGerd Hoffmann goto out; 1902f1ae32a1SGerd Hoffmann } 1903f1ae32a1SGerd Hoffmann 1904ae0138a8SGerd Hoffmann if (q->async) { 1905f1ae32a1SGerd Hoffmann ehci_set_usbsts(q->ehci, USBSTS_REC); 1906f1ae32a1SGerd Hoffmann } 1907f1ae32a1SGerd Hoffmann 190801e26b0eSHans de Goede again = ehci_execute(p, "process"); 190901e26b0eSHans de Goede if (again == -1) { 1910f1ae32a1SGerd Hoffmann goto out; 1911f1ae32a1SGerd Hoffmann } 191201e26b0eSHans de Goede if (p->packet.status == USB_RET_ASYNC) { 1913f1ae32a1SGerd Hoffmann ehci_flush_qh(q); 1914773dc9cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "async"); 1915eb36a88eSGerd Hoffmann p->async = EHCI_ASYNC_INFLIGHT; 1916ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1917cae5d3f4SHans de Goede if (q->async) { 191801e26b0eSHans de Goede again = ehci_fill_queue(p); 1919cae5d3f4SHans de Goede } else { 1920cae5d3f4SHans de Goede again = 1; 1921cae5d3f4SHans de Goede } 1922f1ae32a1SGerd Hoffmann goto out; 1923f1ae32a1SGerd Hoffmann } 1924f1ae32a1SGerd Hoffmann 1925ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTING); 1926f1ae32a1SGerd Hoffmann again = 1; 1927f1ae32a1SGerd Hoffmann 1928f1ae32a1SGerd Hoffmann out: 1929f1ae32a1SGerd Hoffmann return again; 1930f1ae32a1SGerd Hoffmann } 1931f1ae32a1SGerd Hoffmann 1932ae0138a8SGerd Hoffmann static int ehci_state_executing(EHCIQueue *q) 1933f1ae32a1SGerd Hoffmann { 1934eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1935f1ae32a1SGerd Hoffmann 1936eb36a88eSGerd Hoffmann assert(p != NULL); 1937eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1938eb36a88eSGerd Hoffmann 1939f1ae32a1SGerd Hoffmann ehci_execute_complete(q); 1940f1ae32a1SGerd Hoffmann 1941cae5d3f4SHans de Goede /* 4.10.3 */ 1942cae5d3f4SHans de Goede if (!q->async && q->transact_ctr > 0) { 1943cae5d3f4SHans de Goede q->transact_ctr--; 1944f1ae32a1SGerd Hoffmann } 1945f1ae32a1SGerd Hoffmann 1946f1ae32a1SGerd Hoffmann /* 4.10.5 */ 1947e696b1daSHans de Goede if (p->packet.status == USB_RET_NAK) { 1948ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1949f1ae32a1SGerd Hoffmann } else { 1950ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_WRITEBACK); 1951f1ae32a1SGerd Hoffmann } 1952f1ae32a1SGerd Hoffmann 1953f1ae32a1SGerd Hoffmann ehci_flush_qh(q); 1954574ef171SHans de Goede return 1; 1955f1ae32a1SGerd Hoffmann } 1956f1ae32a1SGerd Hoffmann 1957f1ae32a1SGerd Hoffmann 1958ae0138a8SGerd Hoffmann static int ehci_state_writeback(EHCIQueue *q) 1959f1ae32a1SGerd Hoffmann { 1960eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 19614ed1c57aSGerd Hoffmann uint32_t *qtd, addr; 1962f1ae32a1SGerd Hoffmann int again = 0; 1963f1ae32a1SGerd Hoffmann 1964f1ae32a1SGerd Hoffmann /* Write back the QTD from the QH area */ 1965eb36a88eSGerd Hoffmann assert(p != NULL); 1966eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1967eb36a88eSGerd Hoffmann 1968eb36a88eSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(p->qtdaddr), (EHCIqtd *) &q->qh.next_qtd); 19694ed1c57aSGerd Hoffmann qtd = (uint32_t *) &q->qh.next_qtd; 19704ed1c57aSGerd Hoffmann addr = NLPTR_GET(p->qtdaddr); 19714ed1c57aSGerd Hoffmann put_dwords(q->ehci, addr + 2 * sizeof(uint32_t), qtd + 2, 2); 1972eb36a88eSGerd Hoffmann ehci_free_packet(p); 1973f1ae32a1SGerd Hoffmann 1974f1ae32a1SGerd Hoffmann /* 1975f1ae32a1SGerd Hoffmann * EHCI specs say go horizontal here. 1976f1ae32a1SGerd Hoffmann * 1977f1ae32a1SGerd Hoffmann * We can also advance the queue here for performance reasons. We 1978f1ae32a1SGerd Hoffmann * need to take care to only take that shortcut in case we've 1979f1ae32a1SGerd Hoffmann * processed the qtd just written back without errors, i.e. halt 1980f1ae32a1SGerd Hoffmann * bit is clear. 1981f1ae32a1SGerd Hoffmann */ 1982f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_HALT) { 1983ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1984f1ae32a1SGerd Hoffmann again = 1; 1985f1ae32a1SGerd Hoffmann } else { 1986ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_ADVANCEQUEUE); 1987f1ae32a1SGerd Hoffmann again = 1; 1988f1ae32a1SGerd Hoffmann } 1989f1ae32a1SGerd Hoffmann return again; 1990f1ae32a1SGerd Hoffmann } 1991f1ae32a1SGerd Hoffmann 1992f1ae32a1SGerd Hoffmann /* 1993f1ae32a1SGerd Hoffmann * This is the state machine that is common to both async and periodic 1994f1ae32a1SGerd Hoffmann */ 1995f1ae32a1SGerd Hoffmann 1996ae0138a8SGerd Hoffmann static void ehci_advance_state(EHCIState *ehci, int async) 1997f1ae32a1SGerd Hoffmann { 1998f1ae32a1SGerd Hoffmann EHCIQueue *q = NULL; 1999f1ae32a1SGerd Hoffmann int again; 2000f1ae32a1SGerd Hoffmann 2001f1ae32a1SGerd Hoffmann do { 2002f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2003f1ae32a1SGerd Hoffmann case EST_WAITLISTHEAD: 2004f1ae32a1SGerd Hoffmann again = ehci_state_waitlisthead(ehci, async); 2005f1ae32a1SGerd Hoffmann break; 2006f1ae32a1SGerd Hoffmann 2007f1ae32a1SGerd Hoffmann case EST_FETCHENTRY: 2008f1ae32a1SGerd Hoffmann again = ehci_state_fetchentry(ehci, async); 2009f1ae32a1SGerd Hoffmann break; 2010f1ae32a1SGerd Hoffmann 2011f1ae32a1SGerd Hoffmann case EST_FETCHQH: 2012f1ae32a1SGerd Hoffmann q = ehci_state_fetchqh(ehci, async); 2013ae0138a8SGerd Hoffmann if (q != NULL) { 2014ae0138a8SGerd Hoffmann assert(q->async == async); 2015ae0138a8SGerd Hoffmann again = 1; 2016ae0138a8SGerd Hoffmann } else { 2017ae0138a8SGerd Hoffmann again = 0; 2018ae0138a8SGerd Hoffmann } 2019f1ae32a1SGerd Hoffmann break; 2020f1ae32a1SGerd Hoffmann 2021f1ae32a1SGerd Hoffmann case EST_FETCHITD: 2022f1ae32a1SGerd Hoffmann again = ehci_state_fetchitd(ehci, async); 2023f1ae32a1SGerd Hoffmann break; 2024f1ae32a1SGerd Hoffmann 2025f1ae32a1SGerd Hoffmann case EST_FETCHSITD: 2026f1ae32a1SGerd Hoffmann again = ehci_state_fetchsitd(ehci, async); 2027f1ae32a1SGerd Hoffmann break; 2028f1ae32a1SGerd Hoffmann 2029f1ae32a1SGerd Hoffmann case EST_ADVANCEQUEUE: 2030ae0138a8SGerd Hoffmann again = ehci_state_advqueue(q); 2031f1ae32a1SGerd Hoffmann break; 2032f1ae32a1SGerd Hoffmann 2033f1ae32a1SGerd Hoffmann case EST_FETCHQTD: 2034ae0138a8SGerd Hoffmann again = ehci_state_fetchqtd(q); 2035f1ae32a1SGerd Hoffmann break; 2036f1ae32a1SGerd Hoffmann 2037f1ae32a1SGerd Hoffmann case EST_HORIZONTALQH: 2038ae0138a8SGerd Hoffmann again = ehci_state_horizqh(q); 2039f1ae32a1SGerd Hoffmann break; 2040f1ae32a1SGerd Hoffmann 2041f1ae32a1SGerd Hoffmann case EST_EXECUTE: 2042ae0138a8SGerd Hoffmann again = ehci_state_execute(q); 20433a215326SGerd Hoffmann if (async) { 20443a215326SGerd Hoffmann ehci->async_stepdown = 0; 20453a215326SGerd Hoffmann } 2046f1ae32a1SGerd Hoffmann break; 2047f1ae32a1SGerd Hoffmann 2048f1ae32a1SGerd Hoffmann case EST_EXECUTING: 2049f1ae32a1SGerd Hoffmann assert(q != NULL); 20503a215326SGerd Hoffmann if (async) { 20513a215326SGerd Hoffmann ehci->async_stepdown = 0; 20523a215326SGerd Hoffmann } 2053ae0138a8SGerd Hoffmann again = ehci_state_executing(q); 2054f1ae32a1SGerd Hoffmann break; 2055f1ae32a1SGerd Hoffmann 2056f1ae32a1SGerd Hoffmann case EST_WRITEBACK: 2057f1ae32a1SGerd Hoffmann assert(q != NULL); 2058ae0138a8SGerd Hoffmann again = ehci_state_writeback(q); 205980826240SHans de Goede if (!async) { 206080826240SHans de Goede ehci->periodic_sched_active = PERIODIC_ACTIVE; 206180826240SHans de Goede } 2062f1ae32a1SGerd Hoffmann break; 2063f1ae32a1SGerd Hoffmann 2064f1ae32a1SGerd Hoffmann default: 2065f1ae32a1SGerd Hoffmann fprintf(stderr, "Bad state!\n"); 2066f1ae32a1SGerd Hoffmann again = -1; 2067f1ae32a1SGerd Hoffmann assert(0); 2068f1ae32a1SGerd Hoffmann break; 2069f1ae32a1SGerd Hoffmann } 2070f1ae32a1SGerd Hoffmann 2071f1ae32a1SGerd Hoffmann if (again < 0) { 2072f1ae32a1SGerd Hoffmann fprintf(stderr, "processing error - resetting ehci HC\n"); 2073f1ae32a1SGerd Hoffmann ehci_reset(ehci); 2074f1ae32a1SGerd Hoffmann again = 0; 2075f1ae32a1SGerd Hoffmann } 2076f1ae32a1SGerd Hoffmann } 2077f1ae32a1SGerd Hoffmann while (again); 2078f1ae32a1SGerd Hoffmann } 2079f1ae32a1SGerd Hoffmann 2080f1ae32a1SGerd Hoffmann static void ehci_advance_async_state(EHCIState *ehci) 2081f1ae32a1SGerd Hoffmann { 2082f1ae32a1SGerd Hoffmann const int async = 1; 2083f1ae32a1SGerd Hoffmann 2084f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2085f1ae32a1SGerd Hoffmann case EST_INACTIVE: 2086ec807d12SGerd Hoffmann if (!ehci_async_enabled(ehci)) { 2087f1ae32a1SGerd Hoffmann break; 2088f1ae32a1SGerd Hoffmann } 2089f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 2090f1ae32a1SGerd Hoffmann // No break, fall through to ACTIVE 2091f1ae32a1SGerd Hoffmann 2092f1ae32a1SGerd Hoffmann case EST_ACTIVE: 2093ec807d12SGerd Hoffmann if (!ehci_async_enabled(ehci)) { 2094f1ae32a1SGerd Hoffmann ehci_queues_rip_all(ehci, async); 2095f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_INACTIVE); 2096f1ae32a1SGerd Hoffmann break; 2097f1ae32a1SGerd Hoffmann } 2098f1ae32a1SGerd Hoffmann 2099f1ae32a1SGerd Hoffmann /* make sure guest has acknowledged the doorbell interrupt */ 2100f1ae32a1SGerd Hoffmann /* TO-DO: is this really needed? */ 2101f1ae32a1SGerd Hoffmann if (ehci->usbsts & USBSTS_IAA) { 2102f1ae32a1SGerd Hoffmann DPRINTF("IAA status bit still set.\n"); 2103f1ae32a1SGerd Hoffmann break; 2104f1ae32a1SGerd Hoffmann } 2105f1ae32a1SGerd Hoffmann 2106f1ae32a1SGerd Hoffmann /* check that address register has been set */ 2107f1ae32a1SGerd Hoffmann if (ehci->asynclistaddr == 0) { 2108f1ae32a1SGerd Hoffmann break; 2109f1ae32a1SGerd Hoffmann } 2110f1ae32a1SGerd Hoffmann 2111f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_WAITLISTHEAD); 2112f1ae32a1SGerd Hoffmann ehci_advance_state(ehci, async); 2113f1ae32a1SGerd Hoffmann 2114f1ae32a1SGerd Hoffmann /* If the doorbell is set, the guest wants to make a change to the 2115f1ae32a1SGerd Hoffmann * schedule. The host controller needs to release cached data. 2116f1ae32a1SGerd Hoffmann * (section 4.8.2) 2117f1ae32a1SGerd Hoffmann */ 2118f1ae32a1SGerd Hoffmann if (ehci->usbcmd & USBCMD_IAAD) { 2119f1ae32a1SGerd Hoffmann /* Remove all unseen qhs from the async qhs queue */ 21208f5457ebSHans de Goede ehci_queues_rip_unseen(ehci, async); 21211defcbd1SGerd Hoffmann trace_usb_ehci_doorbell_ack(); 2122f1ae32a1SGerd Hoffmann ehci->usbcmd &= ~USBCMD_IAAD; 21237efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_IAA); 2124f1ae32a1SGerd Hoffmann } 2125f1ae32a1SGerd Hoffmann break; 2126f1ae32a1SGerd Hoffmann 2127f1ae32a1SGerd Hoffmann default: 2128f1ae32a1SGerd Hoffmann /* this should only be due to a developer mistake */ 2129f1ae32a1SGerd Hoffmann fprintf(stderr, "ehci: Bad asynchronous state %d. " 2130f1ae32a1SGerd Hoffmann "Resetting to active\n", ehci->astate); 2131f1ae32a1SGerd Hoffmann assert(0); 2132f1ae32a1SGerd Hoffmann } 2133f1ae32a1SGerd Hoffmann } 2134f1ae32a1SGerd Hoffmann 2135f1ae32a1SGerd Hoffmann static void ehci_advance_periodic_state(EHCIState *ehci) 2136f1ae32a1SGerd Hoffmann { 2137f1ae32a1SGerd Hoffmann uint32_t entry; 2138f1ae32a1SGerd Hoffmann uint32_t list; 2139f1ae32a1SGerd Hoffmann const int async = 0; 2140f1ae32a1SGerd Hoffmann 2141f1ae32a1SGerd Hoffmann // 4.6 2142f1ae32a1SGerd Hoffmann 2143f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2144f1ae32a1SGerd Hoffmann case EST_INACTIVE: 2145ec807d12SGerd Hoffmann if (!(ehci->frindex & 7) && ehci_periodic_enabled(ehci)) { 2146f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 2147f1ae32a1SGerd Hoffmann // No break, fall through to ACTIVE 2148f1ae32a1SGerd Hoffmann } else 2149f1ae32a1SGerd Hoffmann break; 2150f1ae32a1SGerd Hoffmann 2151f1ae32a1SGerd Hoffmann case EST_ACTIVE: 2152ec807d12SGerd Hoffmann if (!(ehci->frindex & 7) && !ehci_periodic_enabled(ehci)) { 2153f1ae32a1SGerd Hoffmann ehci_queues_rip_all(ehci, async); 2154f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_INACTIVE); 2155f1ae32a1SGerd Hoffmann break; 2156f1ae32a1SGerd Hoffmann } 2157f1ae32a1SGerd Hoffmann 2158f1ae32a1SGerd Hoffmann list = ehci->periodiclistbase & 0xfffff000; 2159f1ae32a1SGerd Hoffmann /* check that register has been set */ 2160f1ae32a1SGerd Hoffmann if (list == 0) { 2161f1ae32a1SGerd Hoffmann break; 2162f1ae32a1SGerd Hoffmann } 2163f1ae32a1SGerd Hoffmann list |= ((ehci->frindex & 0x1ff8) >> 1); 2164f1ae32a1SGerd Hoffmann 216555903f1dSGerd Hoffmann if (get_dwords(ehci, list, &entry, 1) < 0) { 216655903f1dSGerd Hoffmann break; 216755903f1dSGerd Hoffmann } 2168f1ae32a1SGerd Hoffmann 2169f1ae32a1SGerd Hoffmann DPRINTF("PERIODIC state adv fr=%d. [%08X] -> %08X\n", 2170f1ae32a1SGerd Hoffmann ehci->frindex / 8, list, entry); 2171f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async,entry); 2172f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 2173f1ae32a1SGerd Hoffmann ehci_advance_state(ehci, async); 21748f5457ebSHans de Goede ehci_queues_rip_unused(ehci, async); 2175f1ae32a1SGerd Hoffmann break; 2176f1ae32a1SGerd Hoffmann 2177f1ae32a1SGerd Hoffmann default: 2178f1ae32a1SGerd Hoffmann /* this should only be due to a developer mistake */ 2179f1ae32a1SGerd Hoffmann fprintf(stderr, "ehci: Bad periodic state %d. " 2180f1ae32a1SGerd Hoffmann "Resetting to active\n", ehci->pstate); 2181f1ae32a1SGerd Hoffmann assert(0); 2182f1ae32a1SGerd Hoffmann } 2183f1ae32a1SGerd Hoffmann } 2184f1ae32a1SGerd Hoffmann 21856ceced0bSGerd Hoffmann static void ehci_update_frindex(EHCIState *ehci, int frames) 21866ceced0bSGerd Hoffmann { 21876ceced0bSGerd Hoffmann int i; 21886ceced0bSGerd Hoffmann 21896ceced0bSGerd Hoffmann if (!ehci_enabled(ehci)) { 21906ceced0bSGerd Hoffmann return; 21916ceced0bSGerd Hoffmann } 21926ceced0bSGerd Hoffmann 21936ceced0bSGerd Hoffmann for (i = 0; i < frames; i++) { 21946ceced0bSGerd Hoffmann ehci->frindex += 8; 21956ceced0bSGerd Hoffmann 21966ceced0bSGerd Hoffmann if (ehci->frindex == 0x00002000) { 21977efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_FLR); 21986ceced0bSGerd Hoffmann } 21996ceced0bSGerd Hoffmann 22006ceced0bSGerd Hoffmann if (ehci->frindex == 0x00004000) { 22017efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_FLR); 22026ceced0bSGerd Hoffmann ehci->frindex = 0; 2203ffa1f2e0SHans de Goede if (ehci->usbsts_frindex >= 0x00004000) { 22047efc17afSGerd Hoffmann ehci->usbsts_frindex -= 0x00004000; 22057efc17afSGerd Hoffmann } else { 22067efc17afSGerd Hoffmann ehci->usbsts_frindex = 0; 22077efc17afSGerd Hoffmann } 22086ceced0bSGerd Hoffmann } 22096ceced0bSGerd Hoffmann } 22106ceced0bSGerd Hoffmann } 22116ceced0bSGerd Hoffmann 2212f1ae32a1SGerd Hoffmann static void ehci_frame_timer(void *opaque) 2213f1ae32a1SGerd Hoffmann { 2214f1ae32a1SGerd Hoffmann EHCIState *ehci = opaque; 22157efc17afSGerd Hoffmann int need_timer = 0; 2216f1ae32a1SGerd Hoffmann int64_t expire_time, t_now; 2217f1ae32a1SGerd Hoffmann uint64_t ns_elapsed; 2218f020ed36SGerd Hoffmann int frames, skipped_frames; 2219f1ae32a1SGerd Hoffmann int i; 2220f1ae32a1SGerd Hoffmann 2221f1ae32a1SGerd Hoffmann t_now = qemu_get_clock_ns(vm_clock); 2222f1ae32a1SGerd Hoffmann ns_elapsed = t_now - ehci->last_run_ns; 2223f1ae32a1SGerd Hoffmann frames = ns_elapsed / FRAME_TIMER_NS; 2224f1ae32a1SGerd Hoffmann 22253a215326SGerd Hoffmann if (ehci_periodic_enabled(ehci) || ehci->pstate != EST_INACTIVE) { 22267efc17afSGerd Hoffmann need_timer++; 22273a215326SGerd Hoffmann 2228f020ed36SGerd Hoffmann if (frames > ehci->maxframes) { 2229f020ed36SGerd Hoffmann skipped_frames = frames - ehci->maxframes; 2230f020ed36SGerd Hoffmann ehci_update_frindex(ehci, skipped_frames); 2231f020ed36SGerd Hoffmann ehci->last_run_ns += FRAME_TIMER_NS * skipped_frames; 2232f020ed36SGerd Hoffmann frames -= skipped_frames; 2233f020ed36SGerd Hoffmann DPRINTF("WARNING - EHCI skipped %d frames\n", skipped_frames); 2234f1ae32a1SGerd Hoffmann } 2235f1ae32a1SGerd Hoffmann 2236f020ed36SGerd Hoffmann for (i = 0; i < frames; i++) { 22378f74ed1eSHans de Goede /* 22388f74ed1eSHans de Goede * If we're running behind schedule, we should not catch up 22398f74ed1eSHans de Goede * too fast, as that will make some guests unhappy: 22408f74ed1eSHans de Goede * 1) We must process a minimum of MIN_FR_PER_TICK frames, 22418f74ed1eSHans de Goede * otherwise we will never catch up 22428f74ed1eSHans de Goede * 2) Process frames until the guest has requested an irq (IOC) 22438f74ed1eSHans de Goede */ 22448f74ed1eSHans de Goede if (i >= MIN_FR_PER_TICK) { 22458f74ed1eSHans de Goede ehci_commit_irq(ehci); 22468f74ed1eSHans de Goede if ((ehci->usbsts & USBINTR_MASK) & ehci->usbintr) { 22478f74ed1eSHans de Goede break; 22488f74ed1eSHans de Goede } 22498f74ed1eSHans de Goede } 225080826240SHans de Goede if (ehci->periodic_sched_active) { 225180826240SHans de Goede ehci->periodic_sched_active--; 225280826240SHans de Goede } 2253f020ed36SGerd Hoffmann ehci_update_frindex(ehci, 1); 2254f020ed36SGerd Hoffmann ehci_advance_periodic_state(ehci); 2255f1ae32a1SGerd Hoffmann ehci->last_run_ns += FRAME_TIMER_NS; 2256f1ae32a1SGerd Hoffmann } 22573a215326SGerd Hoffmann } else { 225880826240SHans de Goede ehci->periodic_sched_active = 0; 22593a215326SGerd Hoffmann ehci_update_frindex(ehci, frames); 22603a215326SGerd Hoffmann ehci->last_run_ns += FRAME_TIMER_NS * frames; 22613a215326SGerd Hoffmann } 2262f1ae32a1SGerd Hoffmann 226380826240SHans de Goede if (ehci->periodic_sched_active) { 226480826240SHans de Goede ehci->async_stepdown = 0; 226580826240SHans de Goede } else if (ehci->async_stepdown < ehci->maxframes / 2) { 226680826240SHans de Goede ehci->async_stepdown++; 226780826240SHans de Goede } 226880826240SHans de Goede 2269f1ae32a1SGerd Hoffmann /* Async is not inside loop since it executes everything it can once 2270f1ae32a1SGerd Hoffmann * called 2271f1ae32a1SGerd Hoffmann */ 22723a215326SGerd Hoffmann if (ehci_async_enabled(ehci) || ehci->astate != EST_INACTIVE) { 22737efc17afSGerd Hoffmann need_timer++; 2274afb7a0b8SGerd Hoffmann ehci_advance_async_state(ehci); 22753a215326SGerd Hoffmann } 2276f1ae32a1SGerd Hoffmann 22777efc17afSGerd Hoffmann ehci_commit_irq(ehci); 22787efc17afSGerd Hoffmann if (ehci->usbsts_pending) { 22797efc17afSGerd Hoffmann need_timer++; 22807efc17afSGerd Hoffmann ehci->async_stepdown = 0; 2281f1ae32a1SGerd Hoffmann } 2282f0ad01f9SGerd Hoffmann 228340862309SGerd Hoffmann if (ehci_enabled(ehci) && (ehci->usbintr & USBSTS_FLR)) { 228440862309SGerd Hoffmann need_timer++; 228540862309SGerd Hoffmann } 228640862309SGerd Hoffmann 22877efc17afSGerd Hoffmann if (need_timer) { 228844272b0fSHans de Goede /* If we've raised int, we speed up the timer, so that we quickly 228944272b0fSHans de Goede * notice any new packets queued up in response */ 229044272b0fSHans de Goede if (ehci->int_req_by_async && (ehci->usbsts & USBSTS_INT)) { 229144272b0fSHans de Goede expire_time = t_now + get_ticks_per_sec() / (FRAME_TIMER_FREQ * 2); 229244272b0fSHans de Goede ehci->int_req_by_async = false; 229344272b0fSHans de Goede } else { 2294afb7a0b8SGerd Hoffmann expire_time = t_now + (get_ticks_per_sec() 2295afb7a0b8SGerd Hoffmann * (ehci->async_stepdown+1) / FRAME_TIMER_FREQ); 229644272b0fSHans de Goede } 22977efc17afSGerd Hoffmann qemu_mod_timer(ehci->frame_timer, expire_time); 22987efc17afSGerd Hoffmann } 2299daf25307SGerd Hoffmann } 2300f1ae32a1SGerd Hoffmann 23013e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_caps_ops = { 23023e4f910cSGerd Hoffmann .read = ehci_caps_read, 23033e4f910cSGerd Hoffmann .valid.min_access_size = 1, 23043e4f910cSGerd Hoffmann .valid.max_access_size = 4, 23053e4f910cSGerd Hoffmann .impl.min_access_size = 1, 23063e4f910cSGerd Hoffmann .impl.max_access_size = 1, 23073e4f910cSGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 23083e4f910cSGerd Hoffmann }; 23093e4f910cSGerd Hoffmann 23103e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_opreg_ops = { 23113e4f910cSGerd Hoffmann .read = ehci_opreg_read, 23123e4f910cSGerd Hoffmann .write = ehci_opreg_write, 23133e4f910cSGerd Hoffmann .valid.min_access_size = 4, 23143e4f910cSGerd Hoffmann .valid.max_access_size = 4, 23153e4f910cSGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 23163e4f910cSGerd Hoffmann }; 23173e4f910cSGerd Hoffmann 23183e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_port_ops = { 23193e4f910cSGerd Hoffmann .read = ehci_port_read, 23203e4f910cSGerd Hoffmann .write = ehci_port_write, 23213e4f910cSGerd Hoffmann .valid.min_access_size = 4, 23223e4f910cSGerd Hoffmann .valid.max_access_size = 4, 2323f1ae32a1SGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 2324f1ae32a1SGerd Hoffmann }; 2325f1ae32a1SGerd Hoffmann 2326f1ae32a1SGerd Hoffmann static USBPortOps ehci_port_ops = { 2327f1ae32a1SGerd Hoffmann .attach = ehci_attach, 2328f1ae32a1SGerd Hoffmann .detach = ehci_detach, 2329f1ae32a1SGerd Hoffmann .child_detach = ehci_child_detach, 2330f1ae32a1SGerd Hoffmann .wakeup = ehci_wakeup, 2331f1ae32a1SGerd Hoffmann .complete = ehci_async_complete_packet, 2332f1ae32a1SGerd Hoffmann }; 2333f1ae32a1SGerd Hoffmann 2334f1ae32a1SGerd Hoffmann static USBBusOps ehci_bus_ops = { 2335f1ae32a1SGerd Hoffmann .register_companion = ehci_register_companion, 233680826240SHans de Goede .wakeup_endpoint = ehci_wakeup_endpoint, 2337f1ae32a1SGerd Hoffmann }; 2338f1ae32a1SGerd Hoffmann 23399a773408SGerd Hoffmann static int usb_ehci_post_load(void *opaque, int version_id) 23409a773408SGerd Hoffmann { 23419a773408SGerd Hoffmann EHCIState *s = opaque; 23429a773408SGerd Hoffmann int i; 23439a773408SGerd Hoffmann 23449a773408SGerd Hoffmann for (i = 0; i < NB_PORTS; i++) { 23459a773408SGerd Hoffmann USBPort *companion = s->companion_ports[i]; 23469a773408SGerd Hoffmann if (companion == NULL) { 23479a773408SGerd Hoffmann continue; 23489a773408SGerd Hoffmann } 23499a773408SGerd Hoffmann if (s->portsc[i] & PORTSC_POWNER) { 23509a773408SGerd Hoffmann companion->dev = s->ports[i].dev; 23519a773408SGerd Hoffmann } else { 23529a773408SGerd Hoffmann companion->dev = NULL; 23539a773408SGerd Hoffmann } 23549a773408SGerd Hoffmann } 23559a773408SGerd Hoffmann 23569a773408SGerd Hoffmann return 0; 23579a773408SGerd Hoffmann } 23589a773408SGerd Hoffmann 2359ceab6f96SHans de Goede static void usb_ehci_vm_state_change(void *opaque, int running, RunState state) 2360ceab6f96SHans de Goede { 2361ceab6f96SHans de Goede EHCIState *ehci = opaque; 2362ceab6f96SHans de Goede 2363ceab6f96SHans de Goede /* 2364ceab6f96SHans de Goede * We don't migrate the EHCIQueue-s, instead we rebuild them for the 2365ceab6f96SHans de Goede * schedule in guest memory. We must do the rebuilt ASAP, so that 2366ceab6f96SHans de Goede * USB-devices which have async handled packages have a packet in the 2367ceab6f96SHans de Goede * ep queue to match the completion with. 2368ceab6f96SHans de Goede */ 2369ceab6f96SHans de Goede if (state == RUN_STATE_RUNNING) { 2370ceab6f96SHans de Goede ehci_advance_async_state(ehci); 2371ceab6f96SHans de Goede } 2372ceab6f96SHans de Goede 2373ceab6f96SHans de Goede /* 2374ceab6f96SHans de Goede * The schedule rebuilt from guest memory could cause the migration dest 2375ceab6f96SHans de Goede * to miss a QH unlink, and fail to cancel packets, since the unlinked QH 2376ceab6f96SHans de Goede * will never have existed on the destination. Therefor we must flush the 2377ceab6f96SHans de Goede * async schedule on savevm to catch any not yet noticed unlinks. 2378ceab6f96SHans de Goede */ 2379ceab6f96SHans de Goede if (state == RUN_STATE_SAVE_VM) { 2380ceab6f96SHans de Goede ehci_advance_async_state(ehci); 2381ceab6f96SHans de Goede ehci_queues_rip_unseen(ehci, 1); 2382ceab6f96SHans de Goede } 2383ceab6f96SHans de Goede } 2384ceab6f96SHans de Goede 23850bf96f94SGerd Hoffmann const VMStateDescription vmstate_ehci = { 23865010d4dcSPeter Crosthwaite .name = "ehci-core", 23876d3b6d3dSGerd Hoffmann .version_id = 2, 23886d3b6d3dSGerd Hoffmann .minimum_version_id = 1, 23899a773408SGerd Hoffmann .post_load = usb_ehci_post_load, 23909a773408SGerd Hoffmann .fields = (VMStateField[]) { 23919a773408SGerd Hoffmann /* mmio registers */ 23929a773408SGerd Hoffmann VMSTATE_UINT32(usbcmd, EHCIState), 23939a773408SGerd Hoffmann VMSTATE_UINT32(usbsts, EHCIState), 23946d3b6d3dSGerd Hoffmann VMSTATE_UINT32_V(usbsts_pending, EHCIState, 2), 23956d3b6d3dSGerd Hoffmann VMSTATE_UINT32_V(usbsts_frindex, EHCIState, 2), 23969a773408SGerd Hoffmann VMSTATE_UINT32(usbintr, EHCIState), 23979a773408SGerd Hoffmann VMSTATE_UINT32(frindex, EHCIState), 23989a773408SGerd Hoffmann VMSTATE_UINT32(ctrldssegment, EHCIState), 23999a773408SGerd Hoffmann VMSTATE_UINT32(periodiclistbase, EHCIState), 24009a773408SGerd Hoffmann VMSTATE_UINT32(asynclistaddr, EHCIState), 24019a773408SGerd Hoffmann VMSTATE_UINT32(configflag, EHCIState), 24029a773408SGerd Hoffmann VMSTATE_UINT32(portsc[0], EHCIState), 24039a773408SGerd Hoffmann VMSTATE_UINT32(portsc[1], EHCIState), 24049a773408SGerd Hoffmann VMSTATE_UINT32(portsc[2], EHCIState), 24059a773408SGerd Hoffmann VMSTATE_UINT32(portsc[3], EHCIState), 24069a773408SGerd Hoffmann VMSTATE_UINT32(portsc[4], EHCIState), 24079a773408SGerd Hoffmann VMSTATE_UINT32(portsc[5], EHCIState), 24089a773408SGerd Hoffmann /* frame timer */ 24099a773408SGerd Hoffmann VMSTATE_TIMER(frame_timer, EHCIState), 24109a773408SGerd Hoffmann VMSTATE_UINT64(last_run_ns, EHCIState), 24119a773408SGerd Hoffmann VMSTATE_UINT32(async_stepdown, EHCIState), 24129a773408SGerd Hoffmann /* schedule state */ 24139a773408SGerd Hoffmann VMSTATE_UINT32(astate, EHCIState), 24149a773408SGerd Hoffmann VMSTATE_UINT32(pstate, EHCIState), 24159a773408SGerd Hoffmann VMSTATE_UINT32(a_fetch_addr, EHCIState), 24169a773408SGerd Hoffmann VMSTATE_UINT32(p_fetch_addr, EHCIState), 24179a773408SGerd Hoffmann VMSTATE_END_OF_LIST() 24189a773408SGerd Hoffmann } 2419f1ae32a1SGerd Hoffmann }; 2420f1ae32a1SGerd Hoffmann 24210bf96f94SGerd Hoffmann void usb_ehci_initfn(EHCIState *s, DeviceState *dev) 2422f1ae32a1SGerd Hoffmann { 2423f1ae32a1SGerd Hoffmann int i; 2424f1ae32a1SGerd Hoffmann 24253e4f910cSGerd Hoffmann /* 2.2 host controller interface version */ 242627a11324SPeter Crosthwaite s->caps[0x00] = (uint8_t)(s->opregbase - s->capsbase); 24273e4f910cSGerd Hoffmann s->caps[0x01] = 0x00; 24283e4f910cSGerd Hoffmann s->caps[0x02] = 0x00; 24293e4f910cSGerd Hoffmann s->caps[0x03] = 0x01; /* HC version */ 24303e4f910cSGerd Hoffmann s->caps[0x04] = NB_PORTS; /* Number of downstream ports */ 24313e4f910cSGerd Hoffmann s->caps[0x05] = 0x00; /* No companion ports at present */ 24323e4f910cSGerd Hoffmann s->caps[0x06] = 0x00; 24333e4f910cSGerd Hoffmann s->caps[0x07] = 0x00; 24343e4f910cSGerd Hoffmann s->caps[0x08] = 0x80; /* We can cache whole frame, no 64-bit */ 24353e4f910cSGerd Hoffmann s->caps[0x0a] = 0x00; 24363e4f910cSGerd Hoffmann s->caps[0x0b] = 0x00; 2437f1ae32a1SGerd Hoffmann 24385010d4dcSPeter Crosthwaite usb_bus_new(&s->bus, &ehci_bus_ops, dev); 2439f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) { 2440f1ae32a1SGerd Hoffmann usb_register_port(&s->bus, &s->ports[i], s, i, &ehci_port_ops, 2441f1ae32a1SGerd Hoffmann USB_SPEED_MASK_HIGH); 2442f1ae32a1SGerd Hoffmann s->ports[i].dev = 0; 2443f1ae32a1SGerd Hoffmann } 2444f1ae32a1SGerd Hoffmann 2445f1ae32a1SGerd Hoffmann s->frame_timer = qemu_new_timer_ns(vm_clock, ehci_frame_timer, s); 24460262f65aSHans de Goede s->async_bh = qemu_bh_new(ehci_frame_timer, s); 2447f1ae32a1SGerd Hoffmann QTAILQ_INIT(&s->aqueues); 2448f1ae32a1SGerd Hoffmann QTAILQ_INIT(&s->pqueues); 24497341ea07SHans de Goede usb_packet_init(&s->ipacket); 2450f1ae32a1SGerd Hoffmann 2451f1ae32a1SGerd Hoffmann qemu_register_reset(ehci_reset, s); 2452ceab6f96SHans de Goede qemu_add_vm_change_state_handler(usb_ehci_vm_state_change, s); 2453f1ae32a1SGerd Hoffmann 24543e4f910cSGerd Hoffmann memory_region_init(&s->mem, "ehci", MMIO_SIZE); 24553e4f910cSGerd Hoffmann memory_region_init_io(&s->mem_caps, &ehci_mmio_caps_ops, s, 245627a11324SPeter Crosthwaite "capabilities", CAPA_SIZE); 24573e4f910cSGerd Hoffmann memory_region_init_io(&s->mem_opreg, &ehci_mmio_opreg_ops, s, 245827a11324SPeter Crosthwaite "operational", PORTSC_BEGIN); 24593e4f910cSGerd Hoffmann memory_region_init_io(&s->mem_ports, &ehci_mmio_port_ops, s, 24603e4f910cSGerd Hoffmann "ports", PORTSC_END - PORTSC_BEGIN); 24613e4f910cSGerd Hoffmann 246227a11324SPeter Crosthwaite memory_region_add_subregion(&s->mem, s->capsbase, &s->mem_caps); 246327a11324SPeter Crosthwaite memory_region_add_subregion(&s->mem, s->opregbase, &s->mem_opreg); 246427a11324SPeter Crosthwaite memory_region_add_subregion(&s->mem, s->opregbase + PORTSC_BEGIN, 246527a11324SPeter Crosthwaite &s->mem_ports); 24665010d4dcSPeter Crosthwaite } 24673e4f910cSGerd Hoffmann 2468f1ae32a1SGerd Hoffmann /* 2469f1ae32a1SGerd Hoffmann * vim: expandtab ts=4 2470f1ae32a1SGerd Hoffmann */ 2471