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) 1129359a58bSHans de Goede #define UFRAME_TIMER_NS (FRAME_TIMER_NS / 8) 113f1ae32a1SGerd Hoffmann 114f1ae32a1SGerd Hoffmann #define NB_MAXINTRATE 8 // Max rate at which controller issues ints 115f1ae32a1SGerd Hoffmann #define BUFF_SIZE 5*4096 // Max bytes to transfer per transaction 116f1ae32a1SGerd Hoffmann #define MAX_QH 100 // Max allowable queue heads in a chain 1179359a58bSHans de Goede #define MIN_UFR_PER_TICK 24 /* Min frames to process when catching up */ 1189359a58bSHans de Goede #define PERIODIC_ACTIVE 512 /* Micro-frames */ 119f1ae32a1SGerd Hoffmann 120f1ae32a1SGerd Hoffmann /* Internal periodic / asynchronous schedule state machine states 121f1ae32a1SGerd Hoffmann */ 122f1ae32a1SGerd Hoffmann typedef enum { 123f1ae32a1SGerd Hoffmann EST_INACTIVE = 1000, 124f1ae32a1SGerd Hoffmann EST_ACTIVE, 125f1ae32a1SGerd Hoffmann EST_EXECUTING, 126f1ae32a1SGerd Hoffmann EST_SLEEPING, 127f1ae32a1SGerd Hoffmann /* The following states are internal to the state machine function 128f1ae32a1SGerd Hoffmann */ 129f1ae32a1SGerd Hoffmann EST_WAITLISTHEAD, 130f1ae32a1SGerd Hoffmann EST_FETCHENTRY, 131f1ae32a1SGerd Hoffmann EST_FETCHQH, 132f1ae32a1SGerd Hoffmann EST_FETCHITD, 133f1ae32a1SGerd Hoffmann EST_FETCHSITD, 134f1ae32a1SGerd Hoffmann EST_ADVANCEQUEUE, 135f1ae32a1SGerd Hoffmann EST_FETCHQTD, 136f1ae32a1SGerd Hoffmann EST_EXECUTE, 137f1ae32a1SGerd Hoffmann EST_WRITEBACK, 138f1ae32a1SGerd Hoffmann EST_HORIZONTALQH 139f1ae32a1SGerd Hoffmann } EHCI_STATES; 140f1ae32a1SGerd Hoffmann 141f1ae32a1SGerd Hoffmann /* macros for accessing fields within next link pointer entry */ 142f1ae32a1SGerd Hoffmann #define NLPTR_GET(x) ((x) & 0xffffffe0) 143f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_GET(x) (((x) >> 1) & 3) 144f1ae32a1SGerd Hoffmann #define NLPTR_TBIT(x) ((x) & 1) // 1=invalid, 0=valid 145f1ae32a1SGerd Hoffmann 146f1ae32a1SGerd Hoffmann /* link pointer types */ 147f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_ITD 0 // isoc xfer descriptor 148f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_QH 1 // queue head 149f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_STITD 2 // split xaction, isoc xfer descriptor 150f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_FSTN 3 // frame span traversal node 151f1ae32a1SGerd Hoffmann 152f1ae32a1SGerd Hoffmann #define SET_LAST_RUN_CLOCK(s) \ 153f1ae32a1SGerd Hoffmann (s)->last_run_ns = qemu_get_clock_ns(vm_clock); 154f1ae32a1SGerd Hoffmann 155f1ae32a1SGerd Hoffmann /* nifty macros from Arnon's EHCI version */ 156f1ae32a1SGerd Hoffmann #define get_field(data, field) \ 157f1ae32a1SGerd Hoffmann (((data) & field##_MASK) >> field##_SH) 158f1ae32a1SGerd Hoffmann 159f1ae32a1SGerd Hoffmann #define set_field(data, newval, field) do { \ 160f1ae32a1SGerd Hoffmann uint32_t val = *data; \ 161f1ae32a1SGerd Hoffmann val &= ~ field##_MASK; \ 162f1ae32a1SGerd Hoffmann val |= ((newval) << field##_SH) & field##_MASK; \ 163f1ae32a1SGerd Hoffmann *data = val; \ 164f1ae32a1SGerd Hoffmann } while(0) 165f1ae32a1SGerd Hoffmann 166f1ae32a1SGerd Hoffmann static const char *ehci_state_names[] = { 167f1ae32a1SGerd Hoffmann [EST_INACTIVE] = "INACTIVE", 168f1ae32a1SGerd Hoffmann [EST_ACTIVE] = "ACTIVE", 169f1ae32a1SGerd Hoffmann [EST_EXECUTING] = "EXECUTING", 170f1ae32a1SGerd Hoffmann [EST_SLEEPING] = "SLEEPING", 171f1ae32a1SGerd Hoffmann [EST_WAITLISTHEAD] = "WAITLISTHEAD", 172f1ae32a1SGerd Hoffmann [EST_FETCHENTRY] = "FETCH ENTRY", 173f1ae32a1SGerd Hoffmann [EST_FETCHQH] = "FETCH QH", 174f1ae32a1SGerd Hoffmann [EST_FETCHITD] = "FETCH ITD", 175f1ae32a1SGerd Hoffmann [EST_ADVANCEQUEUE] = "ADVANCEQUEUE", 176f1ae32a1SGerd Hoffmann [EST_FETCHQTD] = "FETCH QTD", 177f1ae32a1SGerd Hoffmann [EST_EXECUTE] = "EXECUTE", 178f1ae32a1SGerd Hoffmann [EST_WRITEBACK] = "WRITEBACK", 179f1ae32a1SGerd Hoffmann [EST_HORIZONTALQH] = "HORIZONTALQH", 180f1ae32a1SGerd Hoffmann }; 181f1ae32a1SGerd Hoffmann 182f1ae32a1SGerd Hoffmann static const char *ehci_mmio_names[] = { 183f1ae32a1SGerd Hoffmann [USBCMD] = "USBCMD", 184f1ae32a1SGerd Hoffmann [USBSTS] = "USBSTS", 185f1ae32a1SGerd Hoffmann [USBINTR] = "USBINTR", 186f1ae32a1SGerd Hoffmann [FRINDEX] = "FRINDEX", 187f1ae32a1SGerd Hoffmann [PERIODICLISTBASE] = "P-LIST BASE", 188f1ae32a1SGerd Hoffmann [ASYNCLISTADDR] = "A-LIST ADDR", 189f1ae32a1SGerd Hoffmann [CONFIGFLAG] = "CONFIGFLAG", 190f1ae32a1SGerd Hoffmann }; 191f1ae32a1SGerd Hoffmann 1924b63a0dfSHans de Goede static int ehci_state_executing(EHCIQueue *q); 1934b63a0dfSHans de Goede static int ehci_state_writeback(EHCIQueue *q); 194ff80ce59SHans de Goede static int ehci_state_advqueue(EHCIQueue *q); 195b4ea8664SHans de Goede static int ehci_fill_queue(EHCIPacket *p); 1962b3de6adSHans de Goede static void ehci_free_packet(EHCIPacket *p); 1974b63a0dfSHans de Goede 198f1ae32a1SGerd Hoffmann static const char *nr2str(const char **n, size_t len, uint32_t nr) 199f1ae32a1SGerd Hoffmann { 200f1ae32a1SGerd Hoffmann if (nr < len && n[nr] != NULL) { 201f1ae32a1SGerd Hoffmann return n[nr]; 202f1ae32a1SGerd Hoffmann } else { 203f1ae32a1SGerd Hoffmann return "unknown"; 204f1ae32a1SGerd Hoffmann } 205f1ae32a1SGerd Hoffmann } 206f1ae32a1SGerd Hoffmann 207f1ae32a1SGerd Hoffmann static const char *state2str(uint32_t state) 208f1ae32a1SGerd Hoffmann { 209f1ae32a1SGerd Hoffmann return nr2str(ehci_state_names, ARRAY_SIZE(ehci_state_names), state); 210f1ae32a1SGerd Hoffmann } 211f1ae32a1SGerd Hoffmann 212a8170e5eSAvi Kivity static const char *addr2str(hwaddr addr) 213f1ae32a1SGerd Hoffmann { 21427a11324SPeter Crosthwaite return nr2str(ehci_mmio_names, ARRAY_SIZE(ehci_mmio_names), addr); 215f1ae32a1SGerd Hoffmann } 216f1ae32a1SGerd Hoffmann 217f1ae32a1SGerd Hoffmann static void ehci_trace_usbsts(uint32_t mask, int state) 218f1ae32a1SGerd Hoffmann { 219f1ae32a1SGerd Hoffmann /* interrupts */ 220f1ae32a1SGerd Hoffmann if (mask & USBSTS_INT) { 221f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("INT", state); 222f1ae32a1SGerd Hoffmann } 223f1ae32a1SGerd Hoffmann if (mask & USBSTS_ERRINT) { 224f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("ERRINT", state); 225f1ae32a1SGerd Hoffmann } 226f1ae32a1SGerd Hoffmann if (mask & USBSTS_PCD) { 227f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("PCD", state); 228f1ae32a1SGerd Hoffmann } 229f1ae32a1SGerd Hoffmann if (mask & USBSTS_FLR) { 230f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("FLR", state); 231f1ae32a1SGerd Hoffmann } 232f1ae32a1SGerd Hoffmann if (mask & USBSTS_HSE) { 233f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("HSE", state); 234f1ae32a1SGerd Hoffmann } 235f1ae32a1SGerd Hoffmann if (mask & USBSTS_IAA) { 236f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("IAA", state); 237f1ae32a1SGerd Hoffmann } 238f1ae32a1SGerd Hoffmann 239f1ae32a1SGerd Hoffmann /* status */ 240f1ae32a1SGerd Hoffmann if (mask & USBSTS_HALT) { 241f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("HALT", state); 242f1ae32a1SGerd Hoffmann } 243f1ae32a1SGerd Hoffmann if (mask & USBSTS_REC) { 244f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("REC", state); 245f1ae32a1SGerd Hoffmann } 246f1ae32a1SGerd Hoffmann if (mask & USBSTS_PSS) { 247f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("PSS", state); 248f1ae32a1SGerd Hoffmann } 249f1ae32a1SGerd Hoffmann if (mask & USBSTS_ASS) { 250f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("ASS", state); 251f1ae32a1SGerd Hoffmann } 252f1ae32a1SGerd Hoffmann } 253f1ae32a1SGerd Hoffmann 254f1ae32a1SGerd Hoffmann static inline void ehci_set_usbsts(EHCIState *s, int mask) 255f1ae32a1SGerd Hoffmann { 256f1ae32a1SGerd Hoffmann if ((s->usbsts & mask) == mask) { 257f1ae32a1SGerd Hoffmann return; 258f1ae32a1SGerd Hoffmann } 259f1ae32a1SGerd Hoffmann ehci_trace_usbsts(mask, 1); 260f1ae32a1SGerd Hoffmann s->usbsts |= mask; 261f1ae32a1SGerd Hoffmann } 262f1ae32a1SGerd Hoffmann 263f1ae32a1SGerd Hoffmann static inline void ehci_clear_usbsts(EHCIState *s, int mask) 264f1ae32a1SGerd Hoffmann { 265f1ae32a1SGerd Hoffmann if ((s->usbsts & mask) == 0) { 266f1ae32a1SGerd Hoffmann return; 267f1ae32a1SGerd Hoffmann } 268f1ae32a1SGerd Hoffmann ehci_trace_usbsts(mask, 0); 269f1ae32a1SGerd Hoffmann s->usbsts &= ~mask; 270f1ae32a1SGerd Hoffmann } 271f1ae32a1SGerd Hoffmann 2727efc17afSGerd Hoffmann /* update irq line */ 2737efc17afSGerd Hoffmann static inline void ehci_update_irq(EHCIState *s) 274f1ae32a1SGerd Hoffmann { 275f1ae32a1SGerd Hoffmann int level = 0; 276f1ae32a1SGerd Hoffmann 277f1ae32a1SGerd Hoffmann if ((s->usbsts & USBINTR_MASK) & s->usbintr) { 278f1ae32a1SGerd Hoffmann level = 1; 279f1ae32a1SGerd Hoffmann } 280f1ae32a1SGerd Hoffmann 2817efc17afSGerd Hoffmann trace_usb_ehci_irq(level, s->frindex, s->usbsts, s->usbintr); 282f1ae32a1SGerd Hoffmann qemu_set_irq(s->irq, level); 283f1ae32a1SGerd Hoffmann } 284f1ae32a1SGerd Hoffmann 2857efc17afSGerd Hoffmann /* flag interrupt condition */ 2867efc17afSGerd Hoffmann static inline void ehci_raise_irq(EHCIState *s, int intr) 287f1ae32a1SGerd Hoffmann { 2886d3b6d3dSGerd Hoffmann if (intr & (USBSTS_PCD | USBSTS_FLR | USBSTS_HSE)) { 2896d3b6d3dSGerd Hoffmann s->usbsts |= intr; 2906d3b6d3dSGerd Hoffmann ehci_update_irq(s); 2916d3b6d3dSGerd Hoffmann } else { 292f1ae32a1SGerd Hoffmann s->usbsts_pending |= intr; 293f1ae32a1SGerd Hoffmann } 2946d3b6d3dSGerd Hoffmann } 295f1ae32a1SGerd Hoffmann 2967efc17afSGerd Hoffmann /* 2977efc17afSGerd Hoffmann * Commit pending interrupts (added via ehci_raise_irq), 2987efc17afSGerd Hoffmann * at the rate allowed by "Interrupt Threshold Control". 2997efc17afSGerd Hoffmann */ 3007efc17afSGerd Hoffmann static inline void ehci_commit_irq(EHCIState *s) 301f1ae32a1SGerd Hoffmann { 3027efc17afSGerd Hoffmann uint32_t itc; 3037efc17afSGerd Hoffmann 304f1ae32a1SGerd Hoffmann if (!s->usbsts_pending) { 305f1ae32a1SGerd Hoffmann return; 306f1ae32a1SGerd Hoffmann } 3077efc17afSGerd Hoffmann if (s->usbsts_frindex > s->frindex) { 3087efc17afSGerd Hoffmann return; 3097efc17afSGerd Hoffmann } 3107efc17afSGerd Hoffmann 3117efc17afSGerd Hoffmann itc = (s->usbcmd >> 16) & 0xff; 3127efc17afSGerd Hoffmann s->usbsts |= s->usbsts_pending; 313f1ae32a1SGerd Hoffmann s->usbsts_pending = 0; 3147efc17afSGerd Hoffmann s->usbsts_frindex = s->frindex + itc; 3157efc17afSGerd Hoffmann ehci_update_irq(s); 316f1ae32a1SGerd Hoffmann } 317f1ae32a1SGerd Hoffmann 318daf25307SGerd Hoffmann static void ehci_update_halt(EHCIState *s) 319daf25307SGerd Hoffmann { 320daf25307SGerd Hoffmann if (s->usbcmd & USBCMD_RUNSTOP) { 321daf25307SGerd Hoffmann ehci_clear_usbsts(s, USBSTS_HALT); 322daf25307SGerd Hoffmann } else { 323daf25307SGerd Hoffmann if (s->astate == EST_INACTIVE && s->pstate == EST_INACTIVE) { 324daf25307SGerd Hoffmann ehci_set_usbsts(s, USBSTS_HALT); 325daf25307SGerd Hoffmann } 326daf25307SGerd Hoffmann } 327daf25307SGerd Hoffmann } 328daf25307SGerd Hoffmann 329f1ae32a1SGerd Hoffmann static void ehci_set_state(EHCIState *s, int async, int state) 330f1ae32a1SGerd Hoffmann { 331f1ae32a1SGerd Hoffmann if (async) { 332f1ae32a1SGerd Hoffmann trace_usb_ehci_state("async", state2str(state)); 333f1ae32a1SGerd Hoffmann s->astate = state; 334b53f685dSGerd Hoffmann if (s->astate == EST_INACTIVE) { 335b53f685dSGerd Hoffmann ehci_clear_usbsts(s, USBSTS_ASS); 336daf25307SGerd Hoffmann ehci_update_halt(s); 337b53f685dSGerd Hoffmann } else { 338b53f685dSGerd Hoffmann ehci_set_usbsts(s, USBSTS_ASS); 339b53f685dSGerd Hoffmann } 340f1ae32a1SGerd Hoffmann } else { 341f1ae32a1SGerd Hoffmann trace_usb_ehci_state("periodic", state2str(state)); 342f1ae32a1SGerd Hoffmann s->pstate = state; 343b53f685dSGerd Hoffmann if (s->pstate == EST_INACTIVE) { 344b53f685dSGerd Hoffmann ehci_clear_usbsts(s, USBSTS_PSS); 345daf25307SGerd Hoffmann ehci_update_halt(s); 346b53f685dSGerd Hoffmann } else { 347b53f685dSGerd Hoffmann ehci_set_usbsts(s, USBSTS_PSS); 348b53f685dSGerd Hoffmann } 349f1ae32a1SGerd Hoffmann } 350f1ae32a1SGerd Hoffmann } 351f1ae32a1SGerd Hoffmann 352f1ae32a1SGerd Hoffmann static int ehci_get_state(EHCIState *s, int async) 353f1ae32a1SGerd Hoffmann { 354f1ae32a1SGerd Hoffmann return async ? s->astate : s->pstate; 355f1ae32a1SGerd Hoffmann } 356f1ae32a1SGerd Hoffmann 357f1ae32a1SGerd Hoffmann static void ehci_set_fetch_addr(EHCIState *s, int async, uint32_t addr) 358f1ae32a1SGerd Hoffmann { 359f1ae32a1SGerd Hoffmann if (async) { 360f1ae32a1SGerd Hoffmann s->a_fetch_addr = addr; 361f1ae32a1SGerd Hoffmann } else { 362f1ae32a1SGerd Hoffmann s->p_fetch_addr = addr; 363f1ae32a1SGerd Hoffmann } 364f1ae32a1SGerd Hoffmann } 365f1ae32a1SGerd Hoffmann 366f1ae32a1SGerd Hoffmann static int ehci_get_fetch_addr(EHCIState *s, int async) 367f1ae32a1SGerd Hoffmann { 368f1ae32a1SGerd Hoffmann return async ? s->a_fetch_addr : s->p_fetch_addr; 369f1ae32a1SGerd Hoffmann } 370f1ae32a1SGerd Hoffmann 371a8170e5eSAvi Kivity static void ehci_trace_qh(EHCIQueue *q, hwaddr addr, EHCIqh *qh) 372f1ae32a1SGerd Hoffmann { 373f1ae32a1SGerd Hoffmann /* need three here due to argument count limits */ 374f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_ptrs(q, addr, qh->next, 375f1ae32a1SGerd Hoffmann qh->current_qtd, qh->next_qtd, qh->altnext_qtd); 376f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_fields(addr, 377f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_RL), 378f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_MPLEN), 379f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_EPS), 380f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_EP), 381f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_DEVADDR)); 382f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_bits(addr, 383f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_C), 384f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_H), 385f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_DTC), 386f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_I)); 387f1ae32a1SGerd Hoffmann } 388f1ae32a1SGerd Hoffmann 389a8170e5eSAvi Kivity static void ehci_trace_qtd(EHCIQueue *q, hwaddr addr, EHCIqtd *qtd) 390f1ae32a1SGerd Hoffmann { 391f1ae32a1SGerd Hoffmann /* need three here due to argument count limits */ 392f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_ptrs(q, addr, qtd->next, qtd->altnext); 393f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_fields(addr, 394f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_TBYTES), 395f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_CPAGE), 396f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_CERR), 397f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_PID)); 398f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_bits(addr, 399f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_IOC), 400f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_ACTIVE), 401f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_HALT), 402f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_BABBLE), 403f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_XACTERR)); 404f1ae32a1SGerd Hoffmann } 405f1ae32a1SGerd Hoffmann 406a8170e5eSAvi Kivity static void ehci_trace_itd(EHCIState *s, hwaddr addr, EHCIitd *itd) 407f1ae32a1SGerd Hoffmann { 408f1ae32a1SGerd Hoffmann trace_usb_ehci_itd(addr, itd->next, 409f1ae32a1SGerd Hoffmann get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT), 410f1ae32a1SGerd Hoffmann get_field(itd->bufptr[2], ITD_BUFPTR_MULT), 411f1ae32a1SGerd Hoffmann get_field(itd->bufptr[0], ITD_BUFPTR_EP), 412f1ae32a1SGerd Hoffmann get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR)); 413f1ae32a1SGerd Hoffmann } 414f1ae32a1SGerd Hoffmann 415a8170e5eSAvi Kivity static void ehci_trace_sitd(EHCIState *s, hwaddr addr, 416f1ae32a1SGerd Hoffmann EHCIsitd *sitd) 417f1ae32a1SGerd Hoffmann { 418f1ae32a1SGerd Hoffmann trace_usb_ehci_sitd(addr, sitd->next, 419f1ae32a1SGerd Hoffmann (bool)(sitd->results & SITD_RESULTS_ACTIVE)); 420f1ae32a1SGerd Hoffmann } 421f1ae32a1SGerd Hoffmann 4225c514681SGerd Hoffmann static void ehci_trace_guest_bug(EHCIState *s, const char *message) 4235c514681SGerd Hoffmann { 4245c514681SGerd Hoffmann trace_usb_ehci_guest_bug(message); 4255c514681SGerd Hoffmann fprintf(stderr, "ehci warning: %s\n", message); 4265c514681SGerd Hoffmann } 4275c514681SGerd Hoffmann 428ec807d12SGerd Hoffmann static inline bool ehci_enabled(EHCIState *s) 429ec807d12SGerd Hoffmann { 430ec807d12SGerd Hoffmann return s->usbcmd & USBCMD_RUNSTOP; 431ec807d12SGerd Hoffmann } 432ec807d12SGerd Hoffmann 433ec807d12SGerd Hoffmann static inline bool ehci_async_enabled(EHCIState *s) 434ec807d12SGerd Hoffmann { 435ec807d12SGerd Hoffmann return ehci_enabled(s) && (s->usbcmd & USBCMD_ASE); 436ec807d12SGerd Hoffmann } 437ec807d12SGerd Hoffmann 438ec807d12SGerd Hoffmann static inline bool ehci_periodic_enabled(EHCIState *s) 439ec807d12SGerd Hoffmann { 440ec807d12SGerd Hoffmann return ehci_enabled(s) && (s->usbcmd & USBCMD_PSE); 441ec807d12SGerd Hoffmann } 442ec807d12SGerd Hoffmann 443190d8492SHans de Goede /* Get an array of dwords from main memory */ 444190d8492SHans de Goede static inline int get_dwords(EHCIState *ehci, uint32_t addr, 445190d8492SHans de Goede uint32_t *buf, int num) 446190d8492SHans de Goede { 447190d8492SHans de Goede int i; 448190d8492SHans de Goede 449190d8492SHans de Goede if (!ehci->dma) { 450190d8492SHans de Goede ehci_raise_irq(ehci, USBSTS_HSE); 451190d8492SHans de Goede ehci->usbcmd &= ~USBCMD_RUNSTOP; 452190d8492SHans de Goede trace_usb_ehci_dma_error(); 453190d8492SHans de Goede return -1; 454190d8492SHans de Goede } 455190d8492SHans de Goede 456190d8492SHans de Goede for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 457190d8492SHans de Goede dma_memory_read(ehci->dma, addr, buf, sizeof(*buf)); 458190d8492SHans de Goede *buf = le32_to_cpu(*buf); 459190d8492SHans de Goede } 460190d8492SHans de Goede 461190d8492SHans de Goede return num; 462190d8492SHans de Goede } 463190d8492SHans de Goede 464190d8492SHans de Goede /* Put an array of dwords in to main memory */ 465190d8492SHans de Goede static inline int put_dwords(EHCIState *ehci, uint32_t addr, 466190d8492SHans de Goede uint32_t *buf, int num) 467190d8492SHans de Goede { 468190d8492SHans de Goede int i; 469190d8492SHans de Goede 470190d8492SHans de Goede if (!ehci->dma) { 471190d8492SHans de Goede ehci_raise_irq(ehci, USBSTS_HSE); 472190d8492SHans de Goede ehci->usbcmd &= ~USBCMD_RUNSTOP; 473190d8492SHans de Goede trace_usb_ehci_dma_error(); 474190d8492SHans de Goede return -1; 475190d8492SHans de Goede } 476190d8492SHans de Goede 477190d8492SHans de Goede for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 478190d8492SHans de Goede uint32_t tmp = cpu_to_le32(*buf); 479190d8492SHans de Goede dma_memory_write(ehci->dma, addr, &tmp, sizeof(tmp)); 480190d8492SHans de Goede } 481190d8492SHans de Goede 482190d8492SHans de Goede return num; 483190d8492SHans de Goede } 484190d8492SHans de Goede 48551e0c5d0SHans de Goede static int ehci_get_pid(EHCIqtd *qtd) 48651e0c5d0SHans de Goede { 48751e0c5d0SHans de Goede switch (get_field(qtd->token, QTD_TOKEN_PID)) { 48851e0c5d0SHans de Goede case 0: 48951e0c5d0SHans de Goede return USB_TOKEN_OUT; 49051e0c5d0SHans de Goede case 1: 49151e0c5d0SHans de Goede return USB_TOKEN_IN; 49251e0c5d0SHans de Goede case 2: 49351e0c5d0SHans de Goede return USB_TOKEN_SETUP; 49451e0c5d0SHans de Goede default: 49551e0c5d0SHans de Goede fprintf(stderr, "bad token\n"); 49651e0c5d0SHans de Goede return 0; 49751e0c5d0SHans de Goede } 49851e0c5d0SHans de Goede } 49951e0c5d0SHans de Goede 500c6432634SHans de Goede static bool ehci_verify_qh(EHCIQueue *q, EHCIqh *qh) 501c6432634SHans de Goede { 502c6432634SHans de Goede uint32_t devaddr = get_field(qh->epchar, QH_EPCHAR_DEVADDR); 503c6432634SHans de Goede uint32_t endp = get_field(qh->epchar, QH_EPCHAR_EP); 504c6432634SHans de Goede if ((devaddr != get_field(q->qh.epchar, QH_EPCHAR_DEVADDR)) || 505c6432634SHans de Goede (endp != get_field(q->qh.epchar, QH_EPCHAR_EP)) || 506c6432634SHans de Goede (qh->current_qtd != q->qh.current_qtd) || 507c6432634SHans de Goede (q->async && qh->next_qtd != q->qh.next_qtd) || 508c6432634SHans de Goede (memcmp(&qh->altnext_qtd, &q->qh.altnext_qtd, 509c6432634SHans de Goede 7 * sizeof(uint32_t)) != 0) || 510c6432634SHans de Goede (q->dev != NULL && q->dev->addr != devaddr)) { 511c6432634SHans de Goede return false; 512c6432634SHans de Goede } else { 513c6432634SHans de Goede return true; 514c6432634SHans de Goede } 515c6432634SHans de Goede } 516c6432634SHans de Goede 517c6432634SHans de Goede static bool ehci_verify_qtd(EHCIPacket *p, EHCIqtd *qtd) 518c6432634SHans de Goede { 519c6432634SHans de Goede if (p->qtdaddr != p->queue->qtdaddr || 520c6432634SHans de Goede (p->queue->async && !NLPTR_TBIT(p->qtd.next) && 521c6432634SHans de Goede (p->qtd.next != qtd->next)) || 522c6432634SHans de Goede (!NLPTR_TBIT(p->qtd.altnext) && (p->qtd.altnext != qtd->altnext)) || 523d066c57bSHans de Goede p->qtd.token != qtd->token || 524c6432634SHans de Goede p->qtd.bufptr[0] != qtd->bufptr[0]) { 525c6432634SHans de Goede return false; 526c6432634SHans de Goede } else { 527c6432634SHans de Goede return true; 528c6432634SHans de Goede } 529c6432634SHans de Goede } 530c6432634SHans de Goede 531bbbc39ccSHans de Goede static bool ehci_verify_pid(EHCIQueue *q, EHCIqtd *qtd) 532bbbc39ccSHans de Goede { 533bbbc39ccSHans de Goede int ep = get_field(q->qh.epchar, QH_EPCHAR_EP); 534bbbc39ccSHans de Goede int pid = ehci_get_pid(qtd); 535bbbc39ccSHans de Goede 536bbbc39ccSHans de Goede /* Note the pid changing is normal for ep 0 (the control ep) */ 537bbbc39ccSHans de Goede if (q->last_pid && ep != 0 && pid != q->last_pid) { 538bbbc39ccSHans de Goede return false; 539bbbc39ccSHans de Goede } else { 540bbbc39ccSHans de Goede return true; 541bbbc39ccSHans de Goede } 542bbbc39ccSHans de Goede } 543bbbc39ccSHans de Goede 544f881c8d3SHans de Goede /* Finish executing and writeback a packet outside of the regular 545f881c8d3SHans de Goede fetchqh -> fetchqtd -> execute -> writeback cycle */ 546f881c8d3SHans de Goede static void ehci_writeback_async_complete_packet(EHCIPacket *p) 547f881c8d3SHans de Goede { 548f881c8d3SHans de Goede EHCIQueue *q = p->queue; 5492b3de6adSHans de Goede EHCIqtd qtd; 5502b3de6adSHans de Goede EHCIqh qh; 551f881c8d3SHans de Goede int state; 552f881c8d3SHans de Goede 5532b3de6adSHans de Goede /* Verify the qh + qtd, like we do when going through fetchqh & fetchqtd */ 5542b3de6adSHans de Goede get_dwords(q->ehci, NLPTR_GET(q->qhaddr), 5552b3de6adSHans de Goede (uint32_t *) &qh, sizeof(EHCIqh) >> 2); 5562b3de6adSHans de Goede get_dwords(q->ehci, NLPTR_GET(q->qtdaddr), 5572b3de6adSHans de Goede (uint32_t *) &qtd, sizeof(EHCIqtd) >> 2); 5582b3de6adSHans de Goede if (!ehci_verify_qh(q, &qh) || !ehci_verify_qtd(p, &qtd)) { 5592b3de6adSHans de Goede p->async = EHCI_ASYNC_INITIALIZED; 5602b3de6adSHans de Goede ehci_free_packet(p); 5612b3de6adSHans de Goede return; 5622b3de6adSHans de Goede } 5632b3de6adSHans de Goede 564f881c8d3SHans de Goede state = ehci_get_state(q->ehci, q->async); 565f881c8d3SHans de Goede ehci_state_executing(q); 566f881c8d3SHans de Goede ehci_state_writeback(q); /* Frees the packet! */ 567f881c8d3SHans de Goede if (!(q->qh.token & QTD_TOKEN_HALT)) { 568f881c8d3SHans de Goede ehci_state_advqueue(q); 569f881c8d3SHans de Goede } 570f881c8d3SHans de Goede ehci_set_state(q->ehci, q->async, state); 571f881c8d3SHans de Goede } 572f881c8d3SHans de Goede 573eb36a88eSGerd Hoffmann /* packet management */ 574eb36a88eSGerd Hoffmann 575eb36a88eSGerd Hoffmann static EHCIPacket *ehci_alloc_packet(EHCIQueue *q) 576eb36a88eSGerd Hoffmann { 577eb36a88eSGerd Hoffmann EHCIPacket *p; 578eb36a88eSGerd Hoffmann 579eb36a88eSGerd Hoffmann p = g_new0(EHCIPacket, 1); 580eb36a88eSGerd Hoffmann p->queue = q; 581eb36a88eSGerd Hoffmann usb_packet_init(&p->packet); 582eb36a88eSGerd Hoffmann QTAILQ_INSERT_TAIL(&q->packets, p, next); 583eb36a88eSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "alloc"); 584eb36a88eSGerd Hoffmann return p; 585eb36a88eSGerd Hoffmann } 586eb36a88eSGerd Hoffmann 587eb36a88eSGerd Hoffmann static void ehci_free_packet(EHCIPacket *p) 588eb36a88eSGerd Hoffmann { 5894b63a0dfSHans de Goede if (p->async == EHCI_ASYNC_FINISHED) { 590f881c8d3SHans de Goede ehci_writeback_async_complete_packet(p); 5914b63a0dfSHans de Goede return; 5924b63a0dfSHans de Goede } 593616789cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "free"); 594ef5b2344SHans de Goede if (p->async == EHCI_ASYNC_INITIALIZED) { 595ef5b2344SHans de Goede usb_packet_unmap(&p->packet, &p->sgl); 596ef5b2344SHans de Goede qemu_sglist_destroy(&p->sgl); 597ef5b2344SHans de Goede } 598616789cdSGerd Hoffmann if (p->async == EHCI_ASYNC_INFLIGHT) { 599616789cdSGerd Hoffmann usb_cancel_packet(&p->packet); 600616789cdSGerd Hoffmann usb_packet_unmap(&p->packet, &p->sgl); 601616789cdSGerd Hoffmann qemu_sglist_destroy(&p->sgl); 602616789cdSGerd Hoffmann } 603eb36a88eSGerd Hoffmann QTAILQ_REMOVE(&p->queue->packets, p, next); 604eb36a88eSGerd Hoffmann usb_packet_cleanup(&p->packet); 605eb36a88eSGerd Hoffmann g_free(p); 606eb36a88eSGerd Hoffmann } 607eb36a88eSGerd Hoffmann 608f1ae32a1SGerd Hoffmann /* queue management */ 609f1ae32a1SGerd Hoffmann 6108f6d5e26SGerd Hoffmann static EHCIQueue *ehci_alloc_queue(EHCIState *ehci, uint32_t addr, int async) 611f1ae32a1SGerd Hoffmann { 612f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 613f1ae32a1SGerd Hoffmann EHCIQueue *q; 614f1ae32a1SGerd Hoffmann 615f1ae32a1SGerd Hoffmann q = g_malloc0(sizeof(*q)); 616f1ae32a1SGerd Hoffmann q->ehci = ehci; 6178f6d5e26SGerd Hoffmann q->qhaddr = addr; 618ae0138a8SGerd Hoffmann q->async = async; 619eb36a88eSGerd Hoffmann QTAILQ_INIT(&q->packets); 620f1ae32a1SGerd Hoffmann QTAILQ_INSERT_HEAD(head, q, next); 621f1ae32a1SGerd Hoffmann trace_usb_ehci_queue_action(q, "alloc"); 622f1ae32a1SGerd Hoffmann return q; 623f1ae32a1SGerd Hoffmann } 624f1ae32a1SGerd Hoffmann 625*f79738b0SHans de Goede static void ehci_queue_stopped(EHCIQueue *q) 626*f79738b0SHans de Goede { 627*f79738b0SHans de Goede int endp = get_field(q->qh.epchar, QH_EPCHAR_EP); 628*f79738b0SHans de Goede 629*f79738b0SHans de Goede if (!q->last_pid || !q->dev) { 630*f79738b0SHans de Goede return; 631*f79738b0SHans de Goede } 632*f79738b0SHans de Goede 633*f79738b0SHans de Goede usb_device_ep_stopped(q->dev, usb_ep_get(q->dev, q->last_pid, endp)); 634*f79738b0SHans de Goede } 635*f79738b0SHans de Goede 6365c514681SGerd Hoffmann static int ehci_cancel_queue(EHCIQueue *q) 637c7cdca3bSGerd Hoffmann { 638c7cdca3bSGerd Hoffmann EHCIPacket *p; 6395c514681SGerd Hoffmann int packets = 0; 640c7cdca3bSGerd Hoffmann 641c7cdca3bSGerd Hoffmann p = QTAILQ_FIRST(&q->packets); 642c7cdca3bSGerd Hoffmann if (p == NULL) { 643*f79738b0SHans de Goede goto leave; 644c7cdca3bSGerd Hoffmann } 645c7cdca3bSGerd Hoffmann 646c7cdca3bSGerd Hoffmann trace_usb_ehci_queue_action(q, "cancel"); 647c7cdca3bSGerd Hoffmann do { 648c7cdca3bSGerd Hoffmann ehci_free_packet(p); 6495c514681SGerd Hoffmann packets++; 650c7cdca3bSGerd Hoffmann } while ((p = QTAILQ_FIRST(&q->packets)) != NULL); 651*f79738b0SHans de Goede 652*f79738b0SHans de Goede leave: 653*f79738b0SHans de Goede ehci_queue_stopped(q); 6545c514681SGerd Hoffmann return packets; 655c7cdca3bSGerd Hoffmann } 656c7cdca3bSGerd Hoffmann 6575c514681SGerd Hoffmann static int ehci_reset_queue(EHCIQueue *q) 658dafe31fcSHans de Goede { 6595c514681SGerd Hoffmann int packets; 6605c514681SGerd Hoffmann 661dafe31fcSHans de Goede trace_usb_ehci_queue_action(q, "reset"); 6625c514681SGerd Hoffmann packets = ehci_cancel_queue(q); 663dafe31fcSHans de Goede q->dev = NULL; 664dafe31fcSHans de Goede q->qtdaddr = 0; 665bbbc39ccSHans de Goede q->last_pid = 0; 6665c514681SGerd Hoffmann return packets; 667dafe31fcSHans de Goede } 668dafe31fcSHans de Goede 6693a8ca08eSHans de Goede static void ehci_free_queue(EHCIQueue *q, const char *warn) 670f1ae32a1SGerd Hoffmann { 671ae0138a8SGerd Hoffmann EHCIQueueHead *head = q->async ? &q->ehci->aqueues : &q->ehci->pqueues; 6723a8ca08eSHans de Goede int cancelled; 673eb36a88eSGerd Hoffmann 674f1ae32a1SGerd Hoffmann trace_usb_ehci_queue_action(q, "free"); 6753a8ca08eSHans de Goede cancelled = ehci_cancel_queue(q); 6763a8ca08eSHans de Goede if (warn && cancelled > 0) { 6773a8ca08eSHans de Goede ehci_trace_guest_bug(q->ehci, warn); 6783a8ca08eSHans de Goede } 679f1ae32a1SGerd Hoffmann QTAILQ_REMOVE(head, q, next); 680f1ae32a1SGerd Hoffmann g_free(q); 681f1ae32a1SGerd Hoffmann } 682f1ae32a1SGerd Hoffmann 683f1ae32a1SGerd Hoffmann static EHCIQueue *ehci_find_queue_by_qh(EHCIState *ehci, uint32_t addr, 684f1ae32a1SGerd Hoffmann int async) 685f1ae32a1SGerd Hoffmann { 686f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 687f1ae32a1SGerd Hoffmann EHCIQueue *q; 688f1ae32a1SGerd Hoffmann 689f1ae32a1SGerd Hoffmann QTAILQ_FOREACH(q, head, next) { 690f1ae32a1SGerd Hoffmann if (addr == q->qhaddr) { 691f1ae32a1SGerd Hoffmann return q; 692f1ae32a1SGerd Hoffmann } 693f1ae32a1SGerd Hoffmann } 694f1ae32a1SGerd Hoffmann return NULL; 695f1ae32a1SGerd Hoffmann } 696f1ae32a1SGerd Hoffmann 6978f5457ebSHans de Goede static void ehci_queues_rip_unused(EHCIState *ehci, int async) 698f1ae32a1SGerd Hoffmann { 699f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 7008f5457ebSHans de Goede const char *warn = async ? "guest unlinked busy QH" : NULL; 7013a215326SGerd Hoffmann uint64_t maxage = FRAME_TIMER_NS * ehci->maxframes * 4; 702f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 703f1ae32a1SGerd Hoffmann 704f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 705f1ae32a1SGerd Hoffmann if (q->seen) { 706f1ae32a1SGerd Hoffmann q->seen = 0; 707f1ae32a1SGerd Hoffmann q->ts = ehci->last_run_ns; 708f1ae32a1SGerd Hoffmann continue; 709f1ae32a1SGerd Hoffmann } 7108f5457ebSHans de Goede if (ehci->last_run_ns < q->ts + maxage) { 711f1ae32a1SGerd Hoffmann continue; 712f1ae32a1SGerd Hoffmann } 7133a8ca08eSHans de Goede ehci_free_queue(q, warn); 714f1ae32a1SGerd Hoffmann } 715f1ae32a1SGerd Hoffmann } 716f1ae32a1SGerd Hoffmann 7178f5457ebSHans de Goede static void ehci_queues_rip_unseen(EHCIState *ehci, int async) 7188f5457ebSHans de Goede { 7198f5457ebSHans de Goede EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 7208f5457ebSHans de Goede EHCIQueue *q, *tmp; 7218f5457ebSHans de Goede 7228f5457ebSHans de Goede QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 7238f5457ebSHans de Goede if (!q->seen) { 7248f5457ebSHans de Goede ehci_free_queue(q, NULL); 7258f5457ebSHans de Goede } 7268f5457ebSHans de Goede } 7278f5457ebSHans de Goede } 7288f5457ebSHans de Goede 729f1ae32a1SGerd Hoffmann static void ehci_queues_rip_device(EHCIState *ehci, USBDevice *dev, int async) 730f1ae32a1SGerd Hoffmann { 731f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 732f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 733f1ae32a1SGerd Hoffmann 734f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 735e59928b3SGerd Hoffmann if (q->dev != dev) { 736f1ae32a1SGerd Hoffmann continue; 737f1ae32a1SGerd Hoffmann } 7383a8ca08eSHans de Goede ehci_free_queue(q, NULL); 739f1ae32a1SGerd Hoffmann } 740f1ae32a1SGerd Hoffmann } 741f1ae32a1SGerd Hoffmann 742f1ae32a1SGerd Hoffmann static void ehci_queues_rip_all(EHCIState *ehci, int async) 743f1ae32a1SGerd Hoffmann { 744f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 7453a8ca08eSHans de Goede const char *warn = async ? "guest stopped busy async schedule" : NULL; 746f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 747f1ae32a1SGerd Hoffmann 748f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 7493a8ca08eSHans de Goede ehci_free_queue(q, warn); 750f1ae32a1SGerd Hoffmann } 751f1ae32a1SGerd Hoffmann } 752f1ae32a1SGerd Hoffmann 753f1ae32a1SGerd Hoffmann /* Attach or detach a device on root hub */ 754f1ae32a1SGerd Hoffmann 755f1ae32a1SGerd Hoffmann static void ehci_attach(USBPort *port) 756f1ae32a1SGerd Hoffmann { 757f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 758f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port->index]; 75930e9d412SGerd Hoffmann const char *owner = (*portsc & PORTSC_POWNER) ? "comp" : "ehci"; 760f1ae32a1SGerd Hoffmann 76130e9d412SGerd Hoffmann trace_usb_ehci_port_attach(port->index, owner, port->dev->product_desc); 762f1ae32a1SGerd Hoffmann 763f1ae32a1SGerd Hoffmann if (*portsc & PORTSC_POWNER) { 764f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 765f1ae32a1SGerd Hoffmann companion->dev = port->dev; 766f1ae32a1SGerd Hoffmann companion->ops->attach(companion); 767f1ae32a1SGerd Hoffmann return; 768f1ae32a1SGerd Hoffmann } 769f1ae32a1SGerd Hoffmann 770f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CONNECT; 771f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CSC; 772f1ae32a1SGerd Hoffmann 7737efc17afSGerd Hoffmann ehci_raise_irq(s, USBSTS_PCD); 774f1ae32a1SGerd Hoffmann } 775f1ae32a1SGerd Hoffmann 776f1ae32a1SGerd Hoffmann static void ehci_detach(USBPort *port) 777f1ae32a1SGerd Hoffmann { 778f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 779f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port->index]; 78030e9d412SGerd Hoffmann const char *owner = (*portsc & PORTSC_POWNER) ? "comp" : "ehci"; 781f1ae32a1SGerd Hoffmann 78230e9d412SGerd Hoffmann trace_usb_ehci_port_detach(port->index, owner); 783f1ae32a1SGerd Hoffmann 784f1ae32a1SGerd Hoffmann if (*portsc & PORTSC_POWNER) { 785f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 786f1ae32a1SGerd Hoffmann companion->ops->detach(companion); 787f1ae32a1SGerd Hoffmann companion->dev = NULL; 788f1ae32a1SGerd Hoffmann /* 789f1ae32a1SGerd Hoffmann * EHCI spec 4.2.2: "When a disconnect occurs... On the event, 790f1ae32a1SGerd Hoffmann * the port ownership is returned immediately to the EHCI controller." 791f1ae32a1SGerd Hoffmann */ 792f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_POWNER; 793f1ae32a1SGerd Hoffmann return; 794f1ae32a1SGerd Hoffmann } 795f1ae32a1SGerd Hoffmann 796f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, port->dev, 0); 797f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, port->dev, 1); 798f1ae32a1SGerd Hoffmann 799f1ae32a1SGerd Hoffmann *portsc &= ~(PORTSC_CONNECT|PORTSC_PED); 800f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CSC; 801f1ae32a1SGerd Hoffmann 8027efc17afSGerd Hoffmann ehci_raise_irq(s, USBSTS_PCD); 803f1ae32a1SGerd Hoffmann } 804f1ae32a1SGerd Hoffmann 805f1ae32a1SGerd Hoffmann static void ehci_child_detach(USBPort *port, USBDevice *child) 806f1ae32a1SGerd Hoffmann { 807f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 808f1ae32a1SGerd Hoffmann uint32_t portsc = s->portsc[port->index]; 809f1ae32a1SGerd Hoffmann 810f1ae32a1SGerd Hoffmann if (portsc & PORTSC_POWNER) { 811f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 812f1ae32a1SGerd Hoffmann companion->ops->child_detach(companion, child); 813f1ae32a1SGerd Hoffmann return; 814f1ae32a1SGerd Hoffmann } 815f1ae32a1SGerd Hoffmann 816f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, child, 0); 817f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, child, 1); 818f1ae32a1SGerd Hoffmann } 819f1ae32a1SGerd Hoffmann 820f1ae32a1SGerd Hoffmann static void ehci_wakeup(USBPort *port) 821f1ae32a1SGerd Hoffmann { 822f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 823f1ae32a1SGerd Hoffmann uint32_t portsc = s->portsc[port->index]; 824f1ae32a1SGerd Hoffmann 825f1ae32a1SGerd Hoffmann if (portsc & PORTSC_POWNER) { 826f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 827f1ae32a1SGerd Hoffmann if (companion->ops->wakeup) { 828f1ae32a1SGerd Hoffmann companion->ops->wakeup(companion); 82937952117SHans de Goede } 83037952117SHans de Goede return; 83137952117SHans de Goede } 83237952117SHans de Goede 8330f588df8SGerd Hoffmann qemu_bh_schedule(s->async_bh); 834f1ae32a1SGerd Hoffmann } 835f1ae32a1SGerd Hoffmann 836f1ae32a1SGerd Hoffmann static int ehci_register_companion(USBBus *bus, USBPort *ports[], 837f1ae32a1SGerd Hoffmann uint32_t portcount, uint32_t firstport) 838f1ae32a1SGerd Hoffmann { 839f1ae32a1SGerd Hoffmann EHCIState *s = container_of(bus, EHCIState, bus); 840f1ae32a1SGerd Hoffmann uint32_t i; 841f1ae32a1SGerd Hoffmann 842f1ae32a1SGerd Hoffmann if (firstport + portcount > NB_PORTS) { 843f1ae32a1SGerd Hoffmann qerror_report(QERR_INVALID_PARAMETER_VALUE, "firstport", 844f1ae32a1SGerd Hoffmann "firstport on masterbus"); 845f1ae32a1SGerd Hoffmann error_printf_unless_qmp( 846f1ae32a1SGerd Hoffmann "firstport value of %u makes companion take ports %u - %u, which " 847f1ae32a1SGerd Hoffmann "is outside of the valid range of 0 - %u\n", firstport, firstport, 848f1ae32a1SGerd Hoffmann firstport + portcount - 1, NB_PORTS - 1); 849f1ae32a1SGerd Hoffmann return -1; 850f1ae32a1SGerd Hoffmann } 851f1ae32a1SGerd Hoffmann 852f1ae32a1SGerd Hoffmann for (i = 0; i < portcount; i++) { 853f1ae32a1SGerd Hoffmann if (s->companion_ports[firstport + i]) { 854f1ae32a1SGerd Hoffmann qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus", 855f1ae32a1SGerd Hoffmann "an USB masterbus"); 856f1ae32a1SGerd Hoffmann error_printf_unless_qmp( 857f1ae32a1SGerd Hoffmann "port %u on masterbus %s already has a companion assigned\n", 858f1ae32a1SGerd Hoffmann firstport + i, bus->qbus.name); 859f1ae32a1SGerd Hoffmann return -1; 860f1ae32a1SGerd Hoffmann } 861f1ae32a1SGerd Hoffmann } 862f1ae32a1SGerd Hoffmann 863f1ae32a1SGerd Hoffmann for (i = 0; i < portcount; i++) { 864f1ae32a1SGerd Hoffmann s->companion_ports[firstport + i] = ports[i]; 865f1ae32a1SGerd Hoffmann s->ports[firstport + i].speedmask |= 866f1ae32a1SGerd Hoffmann USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL; 867f1ae32a1SGerd Hoffmann /* Ensure devs attached before the initial reset go to the companion */ 868f1ae32a1SGerd Hoffmann s->portsc[firstport + i] = PORTSC_POWNER; 869f1ae32a1SGerd Hoffmann } 870f1ae32a1SGerd Hoffmann 871f1ae32a1SGerd Hoffmann s->companion_count++; 8723e4f910cSGerd Hoffmann s->caps[0x05] = (s->companion_count << 4) | portcount; 873f1ae32a1SGerd Hoffmann 874f1ae32a1SGerd Hoffmann return 0; 875f1ae32a1SGerd Hoffmann } 876f1ae32a1SGerd Hoffmann 87780826240SHans de Goede static void ehci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep) 87880826240SHans de Goede { 87980826240SHans de Goede EHCIState *s = container_of(bus, EHCIState, bus); 88080826240SHans de Goede uint32_t portsc = s->portsc[ep->dev->port->index]; 88180826240SHans de Goede 88280826240SHans de Goede if (portsc & PORTSC_POWNER) { 88380826240SHans de Goede return; 88480826240SHans de Goede } 88580826240SHans de Goede 88680826240SHans de Goede s->periodic_sched_active = PERIODIC_ACTIVE; 88780826240SHans de Goede qemu_bh_schedule(s->async_bh); 88880826240SHans de Goede } 88980826240SHans de Goede 890f1ae32a1SGerd Hoffmann static USBDevice *ehci_find_device(EHCIState *ehci, uint8_t addr) 891f1ae32a1SGerd Hoffmann { 892f1ae32a1SGerd Hoffmann USBDevice *dev; 893f1ae32a1SGerd Hoffmann USBPort *port; 894f1ae32a1SGerd Hoffmann int i; 895f1ae32a1SGerd Hoffmann 896f1ae32a1SGerd Hoffmann for (i = 0; i < NB_PORTS; i++) { 897f1ae32a1SGerd Hoffmann port = &ehci->ports[i]; 898f1ae32a1SGerd Hoffmann if (!(ehci->portsc[i] & PORTSC_PED)) { 899f1ae32a1SGerd Hoffmann DPRINTF("Port %d not enabled\n", i); 900f1ae32a1SGerd Hoffmann continue; 901f1ae32a1SGerd Hoffmann } 902f1ae32a1SGerd Hoffmann dev = usb_find_device(port, addr); 903f1ae32a1SGerd Hoffmann if (dev != NULL) { 904f1ae32a1SGerd Hoffmann return dev; 905f1ae32a1SGerd Hoffmann } 906f1ae32a1SGerd Hoffmann } 907f1ae32a1SGerd Hoffmann return NULL; 908f1ae32a1SGerd Hoffmann } 909f1ae32a1SGerd Hoffmann 910f1ae32a1SGerd Hoffmann /* 4.1 host controller initialization */ 911f1ae32a1SGerd Hoffmann static void ehci_reset(void *opaque) 912f1ae32a1SGerd Hoffmann { 913f1ae32a1SGerd Hoffmann EHCIState *s = opaque; 914f1ae32a1SGerd Hoffmann int i; 915f1ae32a1SGerd Hoffmann USBDevice *devs[NB_PORTS]; 916f1ae32a1SGerd Hoffmann 917f1ae32a1SGerd Hoffmann trace_usb_ehci_reset(); 918f1ae32a1SGerd Hoffmann 919f1ae32a1SGerd Hoffmann /* 920f1ae32a1SGerd Hoffmann * Do the detach before touching portsc, so that it correctly gets send to 921f1ae32a1SGerd Hoffmann * us or to our companion based on PORTSC_POWNER before the reset. 922f1ae32a1SGerd Hoffmann */ 923f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) { 924f1ae32a1SGerd Hoffmann devs[i] = s->ports[i].dev; 925f1ae32a1SGerd Hoffmann if (devs[i] && devs[i]->attached) { 926f1ae32a1SGerd Hoffmann usb_detach(&s->ports[i]); 927f1ae32a1SGerd Hoffmann } 928f1ae32a1SGerd Hoffmann } 929f1ae32a1SGerd Hoffmann 9303e4f910cSGerd Hoffmann memset(&s->opreg, 0x00, sizeof(s->opreg)); 9313e4f910cSGerd Hoffmann memset(&s->portsc, 0x00, sizeof(s->portsc)); 932f1ae32a1SGerd Hoffmann 933f1ae32a1SGerd Hoffmann s->usbcmd = NB_MAXINTRATE << USBCMD_ITC_SH; 934f1ae32a1SGerd Hoffmann s->usbsts = USBSTS_HALT; 9357efc17afSGerd Hoffmann s->usbsts_pending = 0; 9367efc17afSGerd Hoffmann s->usbsts_frindex = 0; 937f1ae32a1SGerd Hoffmann 938f1ae32a1SGerd Hoffmann s->astate = EST_INACTIVE; 939f1ae32a1SGerd Hoffmann s->pstate = EST_INACTIVE; 940f1ae32a1SGerd Hoffmann 941f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) { 942f1ae32a1SGerd Hoffmann if (s->companion_ports[i]) { 943f1ae32a1SGerd Hoffmann s->portsc[i] = PORTSC_POWNER | PORTSC_PPOWER; 944f1ae32a1SGerd Hoffmann } else { 945f1ae32a1SGerd Hoffmann s->portsc[i] = PORTSC_PPOWER; 946f1ae32a1SGerd Hoffmann } 947f1ae32a1SGerd Hoffmann if (devs[i] && devs[i]->attached) { 948f1ae32a1SGerd Hoffmann usb_attach(&s->ports[i]); 949f1ae32a1SGerd Hoffmann usb_device_reset(devs[i]); 950f1ae32a1SGerd Hoffmann } 951f1ae32a1SGerd Hoffmann } 952f1ae32a1SGerd Hoffmann ehci_queues_rip_all(s, 0); 953f1ae32a1SGerd Hoffmann ehci_queues_rip_all(s, 1); 954f1ae32a1SGerd Hoffmann qemu_del_timer(s->frame_timer); 9550fb3e299SGerd Hoffmann qemu_bh_cancel(s->async_bh); 956f1ae32a1SGerd Hoffmann } 957f1ae32a1SGerd Hoffmann 958a8170e5eSAvi Kivity static uint64_t ehci_caps_read(void *ptr, hwaddr addr, 9593e4f910cSGerd Hoffmann unsigned size) 9603e4f910cSGerd Hoffmann { 9613e4f910cSGerd Hoffmann EHCIState *s = ptr; 9623e4f910cSGerd Hoffmann return s->caps[addr]; 9633e4f910cSGerd Hoffmann } 9643e4f910cSGerd Hoffmann 965a8170e5eSAvi Kivity static uint64_t ehci_opreg_read(void *ptr, hwaddr addr, 9663e4f910cSGerd Hoffmann unsigned size) 967f1ae32a1SGerd Hoffmann { 968f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 969f1ae32a1SGerd Hoffmann uint32_t val; 970f1ae32a1SGerd Hoffmann 9719359a58bSHans de Goede switch (addr) { 9729359a58bSHans de Goede case FRINDEX: 9739359a58bSHans de Goede /* Round down to mult of 8, else it can go backwards on migration */ 9749359a58bSHans de Goede val = s->frindex & ~7; 9759359a58bSHans de Goede break; 9769359a58bSHans de Goede default: 9773e4f910cSGerd Hoffmann val = s->opreg[addr >> 2]; 9789359a58bSHans de Goede } 9799359a58bSHans de Goede 98027a11324SPeter Crosthwaite trace_usb_ehci_opreg_read(addr + s->opregbase, addr2str(addr), val); 981f1ae32a1SGerd Hoffmann return val; 982f1ae32a1SGerd Hoffmann } 983f1ae32a1SGerd Hoffmann 984a8170e5eSAvi Kivity static uint64_t ehci_port_read(void *ptr, hwaddr addr, 9853e4f910cSGerd Hoffmann unsigned size) 986f1ae32a1SGerd Hoffmann { 987f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 988f1ae32a1SGerd Hoffmann uint32_t val; 989f1ae32a1SGerd Hoffmann 9903e4f910cSGerd Hoffmann val = s->portsc[addr >> 2]; 9913e4f910cSGerd Hoffmann trace_usb_ehci_portsc_read(addr + PORTSC_BEGIN, addr >> 2, val); 992f1ae32a1SGerd Hoffmann return val; 993f1ae32a1SGerd Hoffmann } 994f1ae32a1SGerd Hoffmann 995f1ae32a1SGerd Hoffmann static void handle_port_owner_write(EHCIState *s, int port, uint32_t owner) 996f1ae32a1SGerd Hoffmann { 997f1ae32a1SGerd Hoffmann USBDevice *dev = s->ports[port].dev; 998f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port]; 999f1ae32a1SGerd Hoffmann uint32_t orig; 1000f1ae32a1SGerd Hoffmann 1001f1ae32a1SGerd Hoffmann if (s->companion_ports[port] == NULL) 1002f1ae32a1SGerd Hoffmann return; 1003f1ae32a1SGerd Hoffmann 1004f1ae32a1SGerd Hoffmann owner = owner & PORTSC_POWNER; 1005f1ae32a1SGerd Hoffmann orig = *portsc & PORTSC_POWNER; 1006f1ae32a1SGerd Hoffmann 1007f1ae32a1SGerd Hoffmann if (!(owner ^ orig)) { 1008f1ae32a1SGerd Hoffmann return; 1009f1ae32a1SGerd Hoffmann } 1010f1ae32a1SGerd Hoffmann 1011f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 1012f1ae32a1SGerd Hoffmann usb_detach(&s->ports[port]); 1013f1ae32a1SGerd Hoffmann } 1014f1ae32a1SGerd Hoffmann 1015f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_POWNER; 1016f1ae32a1SGerd Hoffmann *portsc |= owner; 1017f1ae32a1SGerd Hoffmann 1018f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 1019f1ae32a1SGerd Hoffmann usb_attach(&s->ports[port]); 1020f1ae32a1SGerd Hoffmann } 1021f1ae32a1SGerd Hoffmann } 1022f1ae32a1SGerd Hoffmann 1023a8170e5eSAvi Kivity static void ehci_port_write(void *ptr, hwaddr addr, 10243e4f910cSGerd Hoffmann uint64_t val, unsigned size) 1025f1ae32a1SGerd Hoffmann { 10263e4f910cSGerd Hoffmann EHCIState *s = ptr; 10273e4f910cSGerd Hoffmann int port = addr >> 2; 1028f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port]; 10293e4f910cSGerd Hoffmann uint32_t old = *portsc; 1030f1ae32a1SGerd Hoffmann USBDevice *dev = s->ports[port].dev; 1031f1ae32a1SGerd Hoffmann 10323e4f910cSGerd Hoffmann trace_usb_ehci_portsc_write(addr + PORTSC_BEGIN, addr >> 2, val); 10333e4f910cSGerd Hoffmann 1034f1ae32a1SGerd Hoffmann /* Clear rwc bits */ 1035f1ae32a1SGerd Hoffmann *portsc &= ~(val & PORTSC_RWC_MASK); 1036f1ae32a1SGerd Hoffmann /* The guest may clear, but not set the PED bit */ 1037f1ae32a1SGerd Hoffmann *portsc &= val | ~PORTSC_PED; 1038f1ae32a1SGerd Hoffmann /* POWNER is masked out by RO_MASK as it is RO when we've no companion */ 1039f1ae32a1SGerd Hoffmann handle_port_owner_write(s, port, val); 1040f1ae32a1SGerd Hoffmann /* And finally apply RO_MASK */ 1041f1ae32a1SGerd Hoffmann val &= PORTSC_RO_MASK; 1042f1ae32a1SGerd Hoffmann 1043f1ae32a1SGerd Hoffmann if ((val & PORTSC_PRESET) && !(*portsc & PORTSC_PRESET)) { 1044f1ae32a1SGerd Hoffmann trace_usb_ehci_port_reset(port, 1); 1045f1ae32a1SGerd Hoffmann } 1046f1ae32a1SGerd Hoffmann 1047f1ae32a1SGerd Hoffmann if (!(val & PORTSC_PRESET) &&(*portsc & PORTSC_PRESET)) { 1048f1ae32a1SGerd Hoffmann trace_usb_ehci_port_reset(port, 0); 1049f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 1050f1ae32a1SGerd Hoffmann usb_port_reset(&s->ports[port]); 1051f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_CSC; 1052f1ae32a1SGerd Hoffmann } 1053f1ae32a1SGerd Hoffmann 1054f1ae32a1SGerd Hoffmann /* 1055f1ae32a1SGerd Hoffmann * Table 2.16 Set the enable bit(and enable bit change) to indicate 1056f1ae32a1SGerd Hoffmann * to SW that this port has a high speed device attached 1057f1ae32a1SGerd Hoffmann */ 1058f1ae32a1SGerd Hoffmann if (dev && dev->attached && (dev->speedmask & USB_SPEED_MASK_HIGH)) { 1059f1ae32a1SGerd Hoffmann val |= PORTSC_PED; 1060f1ae32a1SGerd Hoffmann } 1061f1ae32a1SGerd Hoffmann } 1062f1ae32a1SGerd Hoffmann 1063f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_RO_MASK; 1064f1ae32a1SGerd Hoffmann *portsc |= val; 10653e4f910cSGerd Hoffmann trace_usb_ehci_portsc_change(addr + PORTSC_BEGIN, addr >> 2, *portsc, old); 1066f1ae32a1SGerd Hoffmann } 1067f1ae32a1SGerd Hoffmann 1068a8170e5eSAvi Kivity static void ehci_opreg_write(void *ptr, hwaddr addr, 10693e4f910cSGerd Hoffmann uint64_t val, unsigned size) 1070f1ae32a1SGerd Hoffmann { 1071f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 10723e4f910cSGerd Hoffmann uint32_t *mmio = s->opreg + (addr >> 2); 1073f1ae32a1SGerd Hoffmann uint32_t old = *mmio; 1074f1ae32a1SGerd Hoffmann int i; 1075f1ae32a1SGerd Hoffmann 107627a11324SPeter Crosthwaite trace_usb_ehci_opreg_write(addr + s->opregbase, addr2str(addr), val); 1077f1ae32a1SGerd Hoffmann 107827a11324SPeter Crosthwaite switch (addr) { 1079f1ae32a1SGerd Hoffmann case USBCMD: 10807046530cSGerd Hoffmann if (val & USBCMD_HCRESET) { 10817046530cSGerd Hoffmann ehci_reset(s); 10827046530cSGerd Hoffmann val = s->usbcmd; 10837046530cSGerd Hoffmann break; 10847046530cSGerd Hoffmann } 10857046530cSGerd Hoffmann 1086f1ae32a1SGerd Hoffmann /* not supporting dynamic frame list size at the moment */ 1087f1ae32a1SGerd Hoffmann if ((val & USBCMD_FLS) && !(s->usbcmd & USBCMD_FLS)) { 1088f1ae32a1SGerd Hoffmann fprintf(stderr, "attempt to set frame list size -- value %d\n", 10893e4f910cSGerd Hoffmann (int)val & USBCMD_FLS); 1090f1ae32a1SGerd Hoffmann val &= ~USBCMD_FLS; 1091f1ae32a1SGerd Hoffmann } 109247d073ccSHans de Goede 1093a1c3e4b8SHans de Goede if (val & USBCMD_IAAD) { 1094a1c3e4b8SHans de Goede /* 1095a1c3e4b8SHans de Goede * Process IAAD immediately, otherwise the Linux IAAD watchdog may 1096a1c3e4b8SHans de Goede * trigger and re-use a qh without us seeing the unlink. 1097a1c3e4b8SHans de Goede */ 1098a1c3e4b8SHans de Goede s->async_stepdown = 0; 1099a1c3e4b8SHans de Goede qemu_bh_schedule(s->async_bh); 11001defcbd1SGerd Hoffmann trace_usb_ehci_doorbell_ring(); 1101a1c3e4b8SHans de Goede } 1102a1c3e4b8SHans de Goede 110347d073ccSHans de Goede if (((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & val) != 110447d073ccSHans de Goede ((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & s->usbcmd)) { 110547d073ccSHans de Goede if (s->pstate == EST_INACTIVE) { 110647d073ccSHans de Goede SET_LAST_RUN_CLOCK(s); 110747d073ccSHans de Goede } 110847d073ccSHans de Goede s->usbcmd = val; /* Set usbcmd for ehci_update_halt() */ 110947d073ccSHans de Goede ehci_update_halt(s); 111047d073ccSHans de Goede s->async_stepdown = 0; 11110262f65aSHans de Goede qemu_bh_schedule(s->async_bh); 111247d073ccSHans de Goede } 1113f1ae32a1SGerd Hoffmann break; 1114f1ae32a1SGerd Hoffmann 1115f1ae32a1SGerd Hoffmann case USBSTS: 1116a31f0531SJim Meyering val &= USBSTS_RO_MASK; // bits 6 through 31 are RO 1117a31f0531SJim Meyering ehci_clear_usbsts(s, val); // bits 0 through 5 are R/WC 1118f1ae32a1SGerd Hoffmann val = s->usbsts; 11197efc17afSGerd Hoffmann ehci_update_irq(s); 1120f1ae32a1SGerd Hoffmann break; 1121f1ae32a1SGerd Hoffmann 1122f1ae32a1SGerd Hoffmann case USBINTR: 1123f1ae32a1SGerd Hoffmann val &= USBINTR_MASK; 112440862309SGerd Hoffmann if (ehci_enabled(s) && (USBSTS_FLR & val)) { 112540862309SGerd Hoffmann qemu_bh_schedule(s->async_bh); 112640862309SGerd Hoffmann } 1127f1ae32a1SGerd Hoffmann break; 1128f1ae32a1SGerd Hoffmann 11298a771f77SHans de Goede case FRINDEX: 11309359a58bSHans de Goede val &= 0x00003fff; /* frindex is 14bits */ 11319359a58bSHans de Goede s->usbsts_frindex = val; 11328a771f77SHans de Goede break; 11338a771f77SHans de Goede 1134f1ae32a1SGerd Hoffmann case CONFIGFLAG: 1135f1ae32a1SGerd Hoffmann val &= 0x1; 1136f1ae32a1SGerd Hoffmann if (val) { 1137f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) 1138f1ae32a1SGerd Hoffmann handle_port_owner_write(s, i, 0); 1139f1ae32a1SGerd Hoffmann } 1140f1ae32a1SGerd Hoffmann break; 1141f1ae32a1SGerd Hoffmann 1142f1ae32a1SGerd Hoffmann case PERIODICLISTBASE: 1143ec807d12SGerd Hoffmann if (ehci_periodic_enabled(s)) { 1144f1ae32a1SGerd Hoffmann fprintf(stderr, 1145f1ae32a1SGerd Hoffmann "ehci: PERIODIC list base register set while periodic schedule\n" 1146f1ae32a1SGerd Hoffmann " is enabled and HC is enabled\n"); 1147f1ae32a1SGerd Hoffmann } 1148f1ae32a1SGerd Hoffmann break; 1149f1ae32a1SGerd Hoffmann 1150f1ae32a1SGerd Hoffmann case ASYNCLISTADDR: 1151ec807d12SGerd Hoffmann if (ehci_async_enabled(s)) { 1152f1ae32a1SGerd Hoffmann fprintf(stderr, 1153f1ae32a1SGerd Hoffmann "ehci: ASYNC list address register set while async schedule\n" 1154f1ae32a1SGerd Hoffmann " is enabled and HC is enabled\n"); 1155f1ae32a1SGerd Hoffmann } 1156f1ae32a1SGerd Hoffmann break; 1157f1ae32a1SGerd Hoffmann } 1158f1ae32a1SGerd Hoffmann 1159f1ae32a1SGerd Hoffmann *mmio = val; 116027a11324SPeter Crosthwaite trace_usb_ehci_opreg_change(addr + s->opregbase, addr2str(addr), 116127a11324SPeter Crosthwaite *mmio, old); 1162f1ae32a1SGerd Hoffmann } 1163f1ae32a1SGerd Hoffmann 1164a5e0139aSGerd Hoffmann /* 1165a5e0139aSGerd Hoffmann * Write the qh back to guest physical memory. This step isn't 1166a5e0139aSGerd Hoffmann * in the EHCI spec but we need to do it since we don't share 1167a5e0139aSGerd Hoffmann * physical memory with our guest VM. 1168a5e0139aSGerd Hoffmann * 1169a5e0139aSGerd Hoffmann * The first three dwords are read-only for the EHCI, so skip them 1170a5e0139aSGerd Hoffmann * when writing back the qh. 1171a5e0139aSGerd Hoffmann */ 1172a5e0139aSGerd Hoffmann static void ehci_flush_qh(EHCIQueue *q) 1173a5e0139aSGerd Hoffmann { 1174a5e0139aSGerd Hoffmann uint32_t *qh = (uint32_t *) &q->qh; 1175a5e0139aSGerd Hoffmann uint32_t dwords = sizeof(EHCIqh) >> 2; 1176a5e0139aSGerd Hoffmann uint32_t addr = NLPTR_GET(q->qhaddr); 1177a5e0139aSGerd Hoffmann 1178a5e0139aSGerd Hoffmann put_dwords(q->ehci, addr + 3 * sizeof(uint32_t), qh + 3, dwords - 3); 1179a5e0139aSGerd Hoffmann } 1180a5e0139aSGerd Hoffmann 1181f1ae32a1SGerd Hoffmann // 4.10.2 1182f1ae32a1SGerd Hoffmann 1183f1ae32a1SGerd Hoffmann static int ehci_qh_do_overlay(EHCIQueue *q) 1184f1ae32a1SGerd Hoffmann { 1185eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1186f1ae32a1SGerd Hoffmann int i; 1187f1ae32a1SGerd Hoffmann int dtoggle; 1188f1ae32a1SGerd Hoffmann int ping; 1189f1ae32a1SGerd Hoffmann int eps; 1190f1ae32a1SGerd Hoffmann int reload; 1191f1ae32a1SGerd Hoffmann 1192eb36a88eSGerd Hoffmann assert(p != NULL); 1193eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1194eb36a88eSGerd Hoffmann 1195f1ae32a1SGerd Hoffmann // remember values in fields to preserve in qh after overlay 1196f1ae32a1SGerd Hoffmann 1197f1ae32a1SGerd Hoffmann dtoggle = q->qh.token & QTD_TOKEN_DTOGGLE; 1198f1ae32a1SGerd Hoffmann ping = q->qh.token & QTD_TOKEN_PING; 1199f1ae32a1SGerd Hoffmann 1200eb36a88eSGerd Hoffmann q->qh.current_qtd = p->qtdaddr; 1201eb36a88eSGerd Hoffmann q->qh.next_qtd = p->qtd.next; 1202eb36a88eSGerd Hoffmann q->qh.altnext_qtd = p->qtd.altnext; 1203eb36a88eSGerd Hoffmann q->qh.token = p->qtd.token; 1204f1ae32a1SGerd Hoffmann 1205f1ae32a1SGerd Hoffmann 1206f1ae32a1SGerd Hoffmann eps = get_field(q->qh.epchar, QH_EPCHAR_EPS); 1207f1ae32a1SGerd Hoffmann if (eps == EHCI_QH_EPS_HIGH) { 1208f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_PING; 1209f1ae32a1SGerd Hoffmann q->qh.token |= ping; 1210f1ae32a1SGerd Hoffmann } 1211f1ae32a1SGerd Hoffmann 1212f1ae32a1SGerd Hoffmann reload = get_field(q->qh.epchar, QH_EPCHAR_RL); 1213f1ae32a1SGerd Hoffmann set_field(&q->qh.altnext_qtd, reload, QH_ALTNEXT_NAKCNT); 1214f1ae32a1SGerd Hoffmann 1215f1ae32a1SGerd Hoffmann for (i = 0; i < 5; i++) { 1216eb36a88eSGerd Hoffmann q->qh.bufptr[i] = p->qtd.bufptr[i]; 1217f1ae32a1SGerd Hoffmann } 1218f1ae32a1SGerd Hoffmann 1219f1ae32a1SGerd Hoffmann if (!(q->qh.epchar & QH_EPCHAR_DTC)) { 1220f1ae32a1SGerd Hoffmann // preserve QH DT bit 1221f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_DTOGGLE; 1222f1ae32a1SGerd Hoffmann q->qh.token |= dtoggle; 1223f1ae32a1SGerd Hoffmann } 1224f1ae32a1SGerd Hoffmann 1225f1ae32a1SGerd Hoffmann q->qh.bufptr[1] &= ~BUFPTR_CPROGMASK_MASK; 1226f1ae32a1SGerd Hoffmann q->qh.bufptr[2] &= ~BUFPTR_FRAMETAG_MASK; 1227f1ae32a1SGerd Hoffmann 1228a5e0139aSGerd Hoffmann ehci_flush_qh(q); 1229f1ae32a1SGerd Hoffmann 1230f1ae32a1SGerd Hoffmann return 0; 1231f1ae32a1SGerd Hoffmann } 1232f1ae32a1SGerd Hoffmann 1233eb36a88eSGerd Hoffmann static int ehci_init_transfer(EHCIPacket *p) 1234f1ae32a1SGerd Hoffmann { 1235f1ae32a1SGerd Hoffmann uint32_t cpage, offset, bytes, plen; 1236f1ae32a1SGerd Hoffmann dma_addr_t page; 1237f1ae32a1SGerd Hoffmann 1238eb36a88eSGerd Hoffmann cpage = get_field(p->qtd.token, QTD_TOKEN_CPAGE); 1239eb36a88eSGerd Hoffmann bytes = get_field(p->qtd.token, QTD_TOKEN_TBYTES); 1240eb36a88eSGerd Hoffmann offset = p->qtd.bufptr[0] & ~QTD_BUFPTR_MASK; 12417ae6ce02SPeter Crosthwaite qemu_sglist_init(&p->sgl, 5, p->queue->ehci->dma); 1242f1ae32a1SGerd Hoffmann 1243f1ae32a1SGerd Hoffmann while (bytes > 0) { 1244f1ae32a1SGerd Hoffmann if (cpage > 4) { 1245f1ae32a1SGerd Hoffmann fprintf(stderr, "cpage out of range (%d)\n", cpage); 124601e26b0eSHans de Goede return -1; 1247f1ae32a1SGerd Hoffmann } 1248f1ae32a1SGerd Hoffmann 1249eb36a88eSGerd Hoffmann page = p->qtd.bufptr[cpage] & QTD_BUFPTR_MASK; 1250f1ae32a1SGerd Hoffmann page += offset; 1251f1ae32a1SGerd Hoffmann plen = bytes; 1252f1ae32a1SGerd Hoffmann if (plen > 4096 - offset) { 1253f1ae32a1SGerd Hoffmann plen = 4096 - offset; 1254f1ae32a1SGerd Hoffmann offset = 0; 1255f1ae32a1SGerd Hoffmann cpage++; 1256f1ae32a1SGerd Hoffmann } 1257f1ae32a1SGerd Hoffmann 1258eb36a88eSGerd Hoffmann qemu_sglist_add(&p->sgl, page, plen); 1259f1ae32a1SGerd Hoffmann bytes -= plen; 1260f1ae32a1SGerd Hoffmann } 1261f1ae32a1SGerd Hoffmann return 0; 1262f1ae32a1SGerd Hoffmann } 1263f1ae32a1SGerd Hoffmann 1264e696b1daSHans de Goede static void ehci_finish_transfer(EHCIQueue *q, int len) 1265f1ae32a1SGerd Hoffmann { 1266f1ae32a1SGerd Hoffmann uint32_t cpage, offset; 1267f1ae32a1SGerd Hoffmann 1268e696b1daSHans de Goede if (len > 0) { 1269f1ae32a1SGerd Hoffmann /* update cpage & offset */ 1270f1ae32a1SGerd Hoffmann cpage = get_field(q->qh.token, QTD_TOKEN_CPAGE); 1271f1ae32a1SGerd Hoffmann offset = q->qh.bufptr[0] & ~QTD_BUFPTR_MASK; 1272f1ae32a1SGerd Hoffmann 1273e696b1daSHans de Goede offset += len; 1274f1ae32a1SGerd Hoffmann cpage += offset >> QTD_BUFPTR_SH; 1275f1ae32a1SGerd Hoffmann offset &= ~QTD_BUFPTR_MASK; 1276f1ae32a1SGerd Hoffmann 1277f1ae32a1SGerd Hoffmann set_field(&q->qh.token, cpage, QTD_TOKEN_CPAGE); 1278f1ae32a1SGerd Hoffmann q->qh.bufptr[0] &= QTD_BUFPTR_MASK; 1279f1ae32a1SGerd Hoffmann q->qh.bufptr[0] |= offset; 1280f1ae32a1SGerd Hoffmann } 1281f1ae32a1SGerd Hoffmann } 1282f1ae32a1SGerd Hoffmann 1283f1ae32a1SGerd Hoffmann static void ehci_async_complete_packet(USBPort *port, USBPacket *packet) 1284f1ae32a1SGerd Hoffmann { 1285eb36a88eSGerd Hoffmann EHCIPacket *p; 1286f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 1287f1ae32a1SGerd Hoffmann uint32_t portsc = s->portsc[port->index]; 1288f1ae32a1SGerd Hoffmann 1289f1ae32a1SGerd Hoffmann if (portsc & PORTSC_POWNER) { 1290f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 1291f1ae32a1SGerd Hoffmann companion->ops->complete(companion, packet); 1292f1ae32a1SGerd Hoffmann return; 1293f1ae32a1SGerd Hoffmann } 1294f1ae32a1SGerd Hoffmann 1295eb36a88eSGerd Hoffmann p = container_of(packet, EHCIPacket, packet); 1296eb36a88eSGerd Hoffmann assert(p->async == EHCI_ASYNC_INFLIGHT); 12970cae7b1aSHans de Goede 12989a77a0f5SHans de Goede if (packet->status == USB_RET_REMOVE_FROM_QUEUE) { 12990cae7b1aSHans de Goede trace_usb_ehci_packet_action(p->queue, p, "remove"); 13000cae7b1aSHans de Goede ehci_free_packet(p); 13010cae7b1aSHans de Goede return; 13020cae7b1aSHans de Goede } 13030cae7b1aSHans de Goede 13040cae7b1aSHans de Goede trace_usb_ehci_packet_action(p->queue, p, "wakeup"); 1305eb36a88eSGerd Hoffmann p->async = EHCI_ASYNC_FINISHED; 1306ae710b99SGerd Hoffmann 130780826240SHans de Goede if (!p->queue->async) { 130880826240SHans de Goede s->periodic_sched_active = PERIODIC_ACTIVE; 1309ae710b99SGerd Hoffmann } 131080826240SHans de Goede qemu_bh_schedule(s->async_bh); 1311f1ae32a1SGerd Hoffmann } 1312f1ae32a1SGerd Hoffmann 1313f1ae32a1SGerd Hoffmann static void ehci_execute_complete(EHCIQueue *q) 1314f1ae32a1SGerd Hoffmann { 1315eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1316e696b1daSHans de Goede uint32_t tbytes; 1317eb36a88eSGerd Hoffmann 1318eb36a88eSGerd Hoffmann assert(p != NULL); 1319eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1320ef5b2344SHans de Goede assert(p->async == EHCI_ASYNC_INITIALIZED || 1321ef5b2344SHans de Goede p->async == EHCI_ASYNC_FINISHED); 1322f1ae32a1SGerd Hoffmann 1323e696b1daSHans de Goede DPRINTF("execute_complete: qhaddr 0x%x, next 0x%x, qtdaddr 0x%x, " 1324e696b1daSHans de Goede "status %d, actual_length %d\n", 1325e696b1daSHans de Goede q->qhaddr, q->qh.next, q->qtdaddr, 1326e696b1daSHans de Goede p->packet.status, p->packet.actual_length); 1327f1ae32a1SGerd Hoffmann 1328e696b1daSHans de Goede switch (p->packet.status) { 1329e696b1daSHans de Goede case USB_RET_SUCCESS: 1330e696b1daSHans de Goede break; 1331f1ae32a1SGerd Hoffmann case USB_RET_IOERROR: 1332f1ae32a1SGerd Hoffmann case USB_RET_NODEV: 1333f1ae32a1SGerd Hoffmann q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_XACTERR); 1334f1ae32a1SGerd Hoffmann set_field(&q->qh.token, 0, QTD_TOKEN_CERR); 13357efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1336f1ae32a1SGerd Hoffmann break; 1337f1ae32a1SGerd Hoffmann case USB_RET_STALL: 1338f1ae32a1SGerd Hoffmann q->qh.token |= QTD_TOKEN_HALT; 13397efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1340f1ae32a1SGerd Hoffmann break; 1341f1ae32a1SGerd Hoffmann case USB_RET_NAK: 1342f1ae32a1SGerd Hoffmann set_field(&q->qh.altnext_qtd, 0, QH_ALTNEXT_NAKCNT); 1343f1ae32a1SGerd Hoffmann return; /* We're not done yet with this transaction */ 1344f1ae32a1SGerd Hoffmann case USB_RET_BABBLE: 1345f1ae32a1SGerd Hoffmann q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_BABBLE); 13467efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1347f1ae32a1SGerd Hoffmann break; 1348f1ae32a1SGerd Hoffmann default: 1349f1ae32a1SGerd Hoffmann /* should not be triggerable */ 1350e696b1daSHans de Goede fprintf(stderr, "USB invalid response %d\n", p->packet.status); 1351f1ae32a1SGerd Hoffmann assert(0); 1352f1ae32a1SGerd Hoffmann break; 1353f1ae32a1SGerd Hoffmann } 1354f1ae32a1SGerd Hoffmann 1355e696b1daSHans de Goede /* TODO check 4.12 for splits */ 1356e696b1daSHans de Goede tbytes = get_field(q->qh.token, QTD_TOKEN_TBYTES); 1357549a3c3dSHans de Goede if (tbytes && p->pid == USB_TOKEN_IN) { 1358e696b1daSHans de Goede tbytes -= p->packet.actual_length; 1359cf08a8a1SHans de Goede if (tbytes) { 1360cf08a8a1SHans de Goede /* 4.15.1.2 must raise int on a short input packet */ 1361cf08a8a1SHans de Goede ehci_raise_irq(q->ehci, USBSTS_INT); 136252c15e59SHans de Goede if (q->async) { 136352c15e59SHans de Goede q->ehci->int_req_by_async = true; 136452c15e59SHans de Goede } 1365cf08a8a1SHans de Goede } 1366f1ae32a1SGerd Hoffmann } else { 1367549a3c3dSHans de Goede tbytes = 0; 1368f1ae32a1SGerd Hoffmann } 1369549a3c3dSHans de Goede DPRINTF("updating tbytes to %d\n", tbytes); 1370549a3c3dSHans de Goede set_field(&q->qh.token, tbytes, QTD_TOKEN_TBYTES); 1371e696b1daSHans de Goede 1372e696b1daSHans de Goede ehci_finish_transfer(q, p->packet.actual_length); 1373e2f89926SDavid Gibson usb_packet_unmap(&p->packet, &p->sgl); 1374eb36a88eSGerd Hoffmann qemu_sglist_destroy(&p->sgl); 1375ef5b2344SHans de Goede p->async = EHCI_ASYNC_NONE; 1376f1ae32a1SGerd Hoffmann 1377f1ae32a1SGerd Hoffmann q->qh.token ^= QTD_TOKEN_DTOGGLE; 1378f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_ACTIVE; 1379f1ae32a1SGerd Hoffmann 1380f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_IOC) { 13817efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_INT); 138244272b0fSHans de Goede if (q->async) { 138344272b0fSHans de Goede q->ehci->int_req_by_async = true; 138444272b0fSHans de Goede } 1385f1ae32a1SGerd Hoffmann } 1386f1ae32a1SGerd Hoffmann } 1387f1ae32a1SGerd Hoffmann 138801e26b0eSHans de Goede /* 4.10.3 returns "again" */ 1389773dc9cdSGerd Hoffmann static int ehci_execute(EHCIPacket *p, const char *action) 1390f1ae32a1SGerd Hoffmann { 1391f1ae32a1SGerd Hoffmann USBEndpoint *ep; 1392f1ae32a1SGerd Hoffmann int endp; 13936ba43f1fSHans de Goede bool spd; 1394f1ae32a1SGerd Hoffmann 1395ef5b2344SHans de Goede assert(p->async == EHCI_ASYNC_NONE || 1396ef5b2344SHans de Goede p->async == EHCI_ASYNC_INITIALIZED); 1397ef5b2344SHans de Goede 13984224558fSGerd Hoffmann if (!(p->qtd.token & QTD_TOKEN_ACTIVE)) { 13994224558fSGerd Hoffmann fprintf(stderr, "Attempting to execute inactive qtd\n"); 140001e26b0eSHans de Goede return -1; 1401f1ae32a1SGerd Hoffmann } 1402f1ae32a1SGerd Hoffmann 1403549a3c3dSHans de Goede if (get_field(p->qtd.token, QTD_TOKEN_TBYTES) > BUFF_SIZE) { 14043a8ca08eSHans de Goede ehci_trace_guest_bug(p->queue->ehci, 14053a8ca08eSHans de Goede "guest requested more bytes than allowed"); 140601e26b0eSHans de Goede return -1; 1407f1ae32a1SGerd Hoffmann } 1408f1ae32a1SGerd Hoffmann 1409*f79738b0SHans de Goede if (!ehci_verify_pid(p->queue, &p->qtd)) { 1410*f79738b0SHans de Goede ehci_queue_stopped(p->queue); /* Mark the ep in the prev dir stopped */ 1411*f79738b0SHans de Goede } 141251e0c5d0SHans de Goede p->pid = ehci_get_pid(&p->qtd); 1413bbbc39ccSHans de Goede p->queue->last_pid = p->pid; 1414ef5b2344SHans de Goede endp = get_field(p->queue->qh.epchar, QH_EPCHAR_EP); 1415ef5b2344SHans de Goede ep = usb_ep_get(p->queue->dev, p->pid, endp); 1416ef5b2344SHans de Goede 1417ef5b2344SHans de Goede if (p->async == EHCI_ASYNC_NONE) { 1418eb36a88eSGerd Hoffmann if (ehci_init_transfer(p) != 0) { 141901e26b0eSHans de Goede return -1; 1420f1ae32a1SGerd Hoffmann } 1421f1ae32a1SGerd Hoffmann 14226ba43f1fSHans de Goede spd = (p->pid == USB_TOKEN_IN && NLPTR_TBIT(p->qtd.altnext) == 0); 1423a6fb2ddbSHans de Goede usb_packet_setup(&p->packet, p->pid, ep, p->qtdaddr, spd, 1424a6fb2ddbSHans de Goede (p->qtd.token & QTD_TOKEN_IOC) != 0); 1425eb36a88eSGerd Hoffmann usb_packet_map(&p->packet, &p->sgl); 1426ef5b2344SHans de Goede p->async = EHCI_ASYNC_INITIALIZED; 1427ef5b2344SHans de Goede } 1428f1ae32a1SGerd Hoffmann 1429773dc9cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, action); 14309a77a0f5SHans de Goede usb_handle_packet(p->queue->dev, &p->packet); 14319a77a0f5SHans de Goede DPRINTF("submit: qh 0x%x next 0x%x qtd 0x%x pid 0x%x len %zd endp 0x%x " 14329a77a0f5SHans de Goede "status %d actual_length %d\n", p->queue->qhaddr, p->qtd.next, 14339a77a0f5SHans de Goede p->qtdaddr, p->pid, p->packet.iov.size, endp, p->packet.status, 14349a77a0f5SHans de Goede p->packet.actual_length); 1435f1ae32a1SGerd Hoffmann 14369a77a0f5SHans de Goede if (p->packet.actual_length > BUFF_SIZE) { 1437f1ae32a1SGerd Hoffmann fprintf(stderr, "ret from usb_handle_packet > BUFF_SIZE\n"); 143801e26b0eSHans de Goede return -1; 1439f1ae32a1SGerd Hoffmann } 1440f1ae32a1SGerd Hoffmann 144101e26b0eSHans de Goede return 1; 1442f1ae32a1SGerd Hoffmann } 1443f1ae32a1SGerd Hoffmann 1444f1ae32a1SGerd Hoffmann /* 4.7.2 1445f1ae32a1SGerd Hoffmann */ 1446f1ae32a1SGerd Hoffmann 1447f1ae32a1SGerd Hoffmann static int ehci_process_itd(EHCIState *ehci, 1448e983395dSGerd Hoffmann EHCIitd *itd, 1449e983395dSGerd Hoffmann uint32_t addr) 1450f1ae32a1SGerd Hoffmann { 1451f1ae32a1SGerd Hoffmann USBDevice *dev; 1452f1ae32a1SGerd Hoffmann USBEndpoint *ep; 1453f1ae32a1SGerd Hoffmann uint32_t i, len, pid, dir, devaddr, endp; 1454f1ae32a1SGerd Hoffmann uint32_t pg, off, ptr1, ptr2, max, mult; 1455f1ae32a1SGerd Hoffmann 145680826240SHans de Goede ehci->periodic_sched_active = PERIODIC_ACTIVE; 145780826240SHans de Goede 1458f1ae32a1SGerd Hoffmann dir =(itd->bufptr[1] & ITD_BUFPTR_DIRECTION); 1459f1ae32a1SGerd Hoffmann devaddr = get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR); 1460f1ae32a1SGerd Hoffmann endp = get_field(itd->bufptr[0], ITD_BUFPTR_EP); 1461f1ae32a1SGerd Hoffmann max = get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT); 1462f1ae32a1SGerd Hoffmann mult = get_field(itd->bufptr[2], ITD_BUFPTR_MULT); 1463f1ae32a1SGerd Hoffmann 1464f1ae32a1SGerd Hoffmann for(i = 0; i < 8; i++) { 1465f1ae32a1SGerd Hoffmann if (itd->transact[i] & ITD_XACT_ACTIVE) { 1466f1ae32a1SGerd Hoffmann pg = get_field(itd->transact[i], ITD_XACT_PGSEL); 1467f1ae32a1SGerd Hoffmann off = itd->transact[i] & ITD_XACT_OFFSET_MASK; 1468f1ae32a1SGerd Hoffmann ptr1 = (itd->bufptr[pg] & ITD_BUFPTR_MASK); 1469f1ae32a1SGerd Hoffmann ptr2 = (itd->bufptr[pg+1] & ITD_BUFPTR_MASK); 1470f1ae32a1SGerd Hoffmann len = get_field(itd->transact[i], ITD_XACT_LENGTH); 1471f1ae32a1SGerd Hoffmann 1472f1ae32a1SGerd Hoffmann if (len > max * mult) { 1473f1ae32a1SGerd Hoffmann len = max * mult; 1474f1ae32a1SGerd Hoffmann } 1475f1ae32a1SGerd Hoffmann 1476f1ae32a1SGerd Hoffmann if (len > BUFF_SIZE) { 147701e26b0eSHans de Goede return -1; 1478f1ae32a1SGerd Hoffmann } 1479f1ae32a1SGerd Hoffmann 14807ae6ce02SPeter Crosthwaite qemu_sglist_init(&ehci->isgl, 2, ehci->dma); 1481f1ae32a1SGerd Hoffmann if (off + len > 4096) { 1482f1ae32a1SGerd Hoffmann /* transfer crosses page border */ 1483f1ae32a1SGerd Hoffmann uint32_t len2 = off + len - 4096; 1484f1ae32a1SGerd Hoffmann uint32_t len1 = len - len2; 1485f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr1 + off, len1); 1486f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr2, len2); 1487f1ae32a1SGerd Hoffmann } else { 1488f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr1 + off, len); 1489f1ae32a1SGerd Hoffmann } 1490f1ae32a1SGerd Hoffmann 1491f1ae32a1SGerd Hoffmann pid = dir ? USB_TOKEN_IN : USB_TOKEN_OUT; 1492f1ae32a1SGerd Hoffmann 1493f1ae32a1SGerd Hoffmann dev = ehci_find_device(ehci, devaddr); 1494f1ae32a1SGerd Hoffmann ep = usb_ep_get(dev, pid, endp); 14957ce86aa1SHans de Goede if (ep && ep->type == USB_ENDPOINT_XFER_ISOC) { 1496a6fb2ddbSHans de Goede usb_packet_setup(&ehci->ipacket, pid, ep, addr, false, 1497a6fb2ddbSHans de Goede (itd->transact[i] & ITD_XACT_IOC) != 0); 1498f1ae32a1SGerd Hoffmann usb_packet_map(&ehci->ipacket, &ehci->isgl); 14999a77a0f5SHans de Goede usb_handle_packet(dev, &ehci->ipacket); 1500e2f89926SDavid Gibson usb_packet_unmap(&ehci->ipacket, &ehci->isgl); 1501f1ae32a1SGerd Hoffmann } else { 1502f1ae32a1SGerd Hoffmann DPRINTF("ISOCH: attempt to addess non-iso endpoint\n"); 1503e696b1daSHans de Goede ehci->ipacket.status = USB_RET_NAK; 1504e696b1daSHans de Goede ehci->ipacket.actual_length = 0; 1505f1ae32a1SGerd Hoffmann } 1506f1ae32a1SGerd Hoffmann qemu_sglist_destroy(&ehci->isgl); 1507f1ae32a1SGerd Hoffmann 1508e696b1daSHans de Goede switch (ehci->ipacket.status) { 1509e696b1daSHans de Goede case USB_RET_SUCCESS: 1510e696b1daSHans de Goede break; 1511f1ae32a1SGerd Hoffmann default: 1512e696b1daSHans de Goede fprintf(stderr, "Unexpected iso usb result: %d\n", 1513e696b1daSHans de Goede ehci->ipacket.status); 1514f1ae32a1SGerd Hoffmann /* Fall through */ 1515f1ae32a1SGerd Hoffmann case USB_RET_IOERROR: 1516f1ae32a1SGerd Hoffmann case USB_RET_NODEV: 1517f1ae32a1SGerd Hoffmann /* 3.3.2: XACTERR is only allowed on IN transactions */ 1518f1ae32a1SGerd Hoffmann if (dir) { 1519f1ae32a1SGerd Hoffmann itd->transact[i] |= ITD_XACT_XACTERR; 15207efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_ERRINT); 1521f1ae32a1SGerd Hoffmann } 1522f1ae32a1SGerd Hoffmann break; 1523f1ae32a1SGerd Hoffmann case USB_RET_BABBLE: 1524f1ae32a1SGerd Hoffmann itd->transact[i] |= ITD_XACT_BABBLE; 15257efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_ERRINT); 1526f1ae32a1SGerd Hoffmann break; 1527f1ae32a1SGerd Hoffmann case USB_RET_NAK: 1528f1ae32a1SGerd Hoffmann /* no data for us, so do a zero-length transfer */ 1529e696b1daSHans de Goede ehci->ipacket.actual_length = 0; 1530f1ae32a1SGerd Hoffmann break; 1531f1ae32a1SGerd Hoffmann } 1532f1ae32a1SGerd Hoffmann if (!dir) { 1533e696b1daSHans de Goede set_field(&itd->transact[i], len - ehci->ipacket.actual_length, 1534e696b1daSHans de Goede ITD_XACT_LENGTH); /* OUT */ 1535f1ae32a1SGerd Hoffmann } else { 1536e696b1daSHans de Goede set_field(&itd->transact[i], ehci->ipacket.actual_length, 1537e696b1daSHans de Goede ITD_XACT_LENGTH); /* IN */ 1538f1ae32a1SGerd Hoffmann } 1539f1ae32a1SGerd Hoffmann if (itd->transact[i] & ITD_XACT_IOC) { 15407efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_INT); 1541f1ae32a1SGerd Hoffmann } 1542f1ae32a1SGerd Hoffmann itd->transact[i] &= ~ITD_XACT_ACTIVE; 1543f1ae32a1SGerd Hoffmann } 1544f1ae32a1SGerd Hoffmann } 1545f1ae32a1SGerd Hoffmann return 0; 1546f1ae32a1SGerd Hoffmann } 1547f1ae32a1SGerd Hoffmann 1548cd665715SGerd Hoffmann 1549f1ae32a1SGerd Hoffmann /* This state is the entry point for asynchronous schedule 1550f1ae32a1SGerd Hoffmann * processing. Entry here consitutes a EHCI start event state (4.8.5) 1551f1ae32a1SGerd Hoffmann */ 1552f1ae32a1SGerd Hoffmann static int ehci_state_waitlisthead(EHCIState *ehci, int async) 1553f1ae32a1SGerd Hoffmann { 1554f1ae32a1SGerd Hoffmann EHCIqh qh; 1555f1ae32a1SGerd Hoffmann int i = 0; 1556f1ae32a1SGerd Hoffmann int again = 0; 1557f1ae32a1SGerd Hoffmann uint32_t entry = ehci->asynclistaddr; 1558f1ae32a1SGerd Hoffmann 1559f1ae32a1SGerd Hoffmann /* set reclamation flag at start event (4.8.6) */ 1560f1ae32a1SGerd Hoffmann if (async) { 1561f1ae32a1SGerd Hoffmann ehci_set_usbsts(ehci, USBSTS_REC); 1562f1ae32a1SGerd Hoffmann } 1563f1ae32a1SGerd Hoffmann 15648f5457ebSHans de Goede ehci_queues_rip_unused(ehci, async); 1565f1ae32a1SGerd Hoffmann 1566f1ae32a1SGerd Hoffmann /* Find the head of the list (4.9.1.1) */ 1567f1ae32a1SGerd Hoffmann for(i = 0; i < MAX_QH; i++) { 156855903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &qh, 156955903f1dSGerd Hoffmann sizeof(EHCIqh) >> 2) < 0) { 157055903f1dSGerd Hoffmann return 0; 157155903f1dSGerd Hoffmann } 1572f1ae32a1SGerd Hoffmann ehci_trace_qh(NULL, NLPTR_GET(entry), &qh); 1573f1ae32a1SGerd Hoffmann 1574f1ae32a1SGerd Hoffmann if (qh.epchar & QH_EPCHAR_H) { 1575f1ae32a1SGerd Hoffmann if (async) { 1576f1ae32a1SGerd Hoffmann entry |= (NLPTR_TYPE_QH << 1); 1577f1ae32a1SGerd Hoffmann } 1578f1ae32a1SGerd Hoffmann 1579f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, entry); 1580f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1581f1ae32a1SGerd Hoffmann again = 1; 1582f1ae32a1SGerd Hoffmann goto out; 1583f1ae32a1SGerd Hoffmann } 1584f1ae32a1SGerd Hoffmann 1585f1ae32a1SGerd Hoffmann entry = qh.next; 1586f1ae32a1SGerd Hoffmann if (entry == ehci->asynclistaddr) { 1587f1ae32a1SGerd Hoffmann break; 1588f1ae32a1SGerd Hoffmann } 1589f1ae32a1SGerd Hoffmann } 1590f1ae32a1SGerd Hoffmann 1591f1ae32a1SGerd Hoffmann /* no head found for list. */ 1592f1ae32a1SGerd Hoffmann 1593f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1594f1ae32a1SGerd Hoffmann 1595f1ae32a1SGerd Hoffmann out: 1596f1ae32a1SGerd Hoffmann return again; 1597f1ae32a1SGerd Hoffmann } 1598f1ae32a1SGerd Hoffmann 1599f1ae32a1SGerd Hoffmann 1600f1ae32a1SGerd Hoffmann /* This state is the entry point for periodic schedule processing as 1601f1ae32a1SGerd Hoffmann * well as being a continuation state for async processing. 1602f1ae32a1SGerd Hoffmann */ 1603f1ae32a1SGerd Hoffmann static int ehci_state_fetchentry(EHCIState *ehci, int async) 1604f1ae32a1SGerd Hoffmann { 1605f1ae32a1SGerd Hoffmann int again = 0; 1606f1ae32a1SGerd Hoffmann uint32_t entry = ehci_get_fetch_addr(ehci, async); 1607f1ae32a1SGerd Hoffmann 1608f1ae32a1SGerd Hoffmann if (NLPTR_TBIT(entry)) { 1609f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1610f1ae32a1SGerd Hoffmann goto out; 1611f1ae32a1SGerd Hoffmann } 1612f1ae32a1SGerd Hoffmann 1613f1ae32a1SGerd Hoffmann /* section 4.8, only QH in async schedule */ 1614f1ae32a1SGerd Hoffmann if (async && (NLPTR_TYPE_GET(entry) != NLPTR_TYPE_QH)) { 1615f1ae32a1SGerd Hoffmann fprintf(stderr, "non queue head request in async schedule\n"); 1616f1ae32a1SGerd Hoffmann return -1; 1617f1ae32a1SGerd Hoffmann } 1618f1ae32a1SGerd Hoffmann 1619f1ae32a1SGerd Hoffmann switch (NLPTR_TYPE_GET(entry)) { 1620f1ae32a1SGerd Hoffmann case NLPTR_TYPE_QH: 1621f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHQH); 1622f1ae32a1SGerd Hoffmann again = 1; 1623f1ae32a1SGerd Hoffmann break; 1624f1ae32a1SGerd Hoffmann 1625f1ae32a1SGerd Hoffmann case NLPTR_TYPE_ITD: 1626f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHITD); 1627f1ae32a1SGerd Hoffmann again = 1; 1628f1ae32a1SGerd Hoffmann break; 1629f1ae32a1SGerd Hoffmann 1630f1ae32a1SGerd Hoffmann case NLPTR_TYPE_STITD: 1631f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHSITD); 1632f1ae32a1SGerd Hoffmann again = 1; 1633f1ae32a1SGerd Hoffmann break; 1634f1ae32a1SGerd Hoffmann 1635f1ae32a1SGerd Hoffmann default: 1636f1ae32a1SGerd Hoffmann /* TODO: handle FSTN type */ 1637f1ae32a1SGerd Hoffmann fprintf(stderr, "FETCHENTRY: entry at %X is of type %d " 1638f1ae32a1SGerd Hoffmann "which is not supported yet\n", entry, NLPTR_TYPE_GET(entry)); 1639f1ae32a1SGerd Hoffmann return -1; 1640f1ae32a1SGerd Hoffmann } 1641f1ae32a1SGerd Hoffmann 1642f1ae32a1SGerd Hoffmann out: 1643f1ae32a1SGerd Hoffmann return again; 1644f1ae32a1SGerd Hoffmann } 1645f1ae32a1SGerd Hoffmann 1646f1ae32a1SGerd Hoffmann static EHCIQueue *ehci_state_fetchqh(EHCIState *ehci, int async) 1647f1ae32a1SGerd Hoffmann { 1648c6432634SHans de Goede uint32_t entry; 1649f1ae32a1SGerd Hoffmann EHCIQueue *q; 1650dafe31fcSHans de Goede EHCIqh qh; 1651f1ae32a1SGerd Hoffmann 1652f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1653f1ae32a1SGerd Hoffmann q = ehci_find_queue_by_qh(ehci, entry, async); 1654f1ae32a1SGerd Hoffmann if (NULL == q) { 16558f6d5e26SGerd Hoffmann q = ehci_alloc_queue(ehci, entry, async); 1656f1ae32a1SGerd Hoffmann } 1657f1ae32a1SGerd Hoffmann 16588f6d5e26SGerd Hoffmann q->seen++; 1659f1ae32a1SGerd Hoffmann if (q->seen > 1) { 1660f1ae32a1SGerd Hoffmann /* we are going in circles -- stop processing */ 1661f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1662f1ae32a1SGerd Hoffmann q = NULL; 1663f1ae32a1SGerd Hoffmann goto out; 1664f1ae32a1SGerd Hoffmann } 1665f1ae32a1SGerd Hoffmann 166655903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(q->qhaddr), 166755903f1dSGerd Hoffmann (uint32_t *) &qh, sizeof(EHCIqh) >> 2) < 0) { 166855903f1dSGerd Hoffmann q = NULL; 166955903f1dSGerd Hoffmann goto out; 167055903f1dSGerd Hoffmann } 1671dafe31fcSHans de Goede ehci_trace_qh(q, NLPTR_GET(q->qhaddr), &qh); 1672f1ae32a1SGerd Hoffmann 1673dafe31fcSHans de Goede /* 1674dafe31fcSHans de Goede * The overlay area of the qh should never be changed by the guest, 1675dafe31fcSHans de Goede * except when idle, in which case the reset is a nop. 1676dafe31fcSHans de Goede */ 1677c6432634SHans de Goede if (!ehci_verify_qh(q, &qh)) { 16785c514681SGerd Hoffmann if (ehci_reset_queue(q) > 0) { 16795c514681SGerd Hoffmann ehci_trace_guest_bug(ehci, "guest updated active QH"); 16805c514681SGerd Hoffmann } 1681e59928b3SGerd Hoffmann } 1682dafe31fcSHans de Goede q->qh = qh; 1683dafe31fcSHans de Goede 1684cae5d3f4SHans de Goede q->transact_ctr = get_field(q->qh.epcap, QH_EPCAP_MULT); 1685cae5d3f4SHans de Goede if (q->transact_ctr == 0) { /* Guest bug in some versions of windows */ 1686cae5d3f4SHans de Goede q->transact_ctr = 4; 1687cae5d3f4SHans de Goede } 1688cae5d3f4SHans de Goede 1689e59928b3SGerd Hoffmann if (q->dev == NULL) { 1690c6432634SHans de Goede q->dev = ehci_find_device(q->ehci, 1691c6432634SHans de Goede get_field(q->qh.epchar, QH_EPCHAR_DEVADDR)); 1692e59928b3SGerd Hoffmann } 1693e59928b3SGerd Hoffmann 1694f1ae32a1SGerd Hoffmann if (async && (q->qh.epchar & QH_EPCHAR_H)) { 1695f1ae32a1SGerd Hoffmann 1696f1ae32a1SGerd Hoffmann /* EHCI spec version 1.0 Section 4.8.3 & 4.10.1 */ 1697f1ae32a1SGerd Hoffmann if (ehci->usbsts & USBSTS_REC) { 1698f1ae32a1SGerd Hoffmann ehci_clear_usbsts(ehci, USBSTS_REC); 1699f1ae32a1SGerd Hoffmann } else { 1700f1ae32a1SGerd Hoffmann DPRINTF("FETCHQH: QH 0x%08x. H-bit set, reclamation status reset" 1701f1ae32a1SGerd Hoffmann " - done processing\n", q->qhaddr); 1702f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1703f1ae32a1SGerd Hoffmann q = NULL; 1704f1ae32a1SGerd Hoffmann goto out; 1705f1ae32a1SGerd Hoffmann } 1706f1ae32a1SGerd Hoffmann } 1707f1ae32a1SGerd Hoffmann 1708f1ae32a1SGerd Hoffmann #if EHCI_DEBUG 1709f1ae32a1SGerd Hoffmann if (q->qhaddr != q->qh.next) { 1710f1ae32a1SGerd Hoffmann DPRINTF("FETCHQH: QH 0x%08x (h %x halt %x active %x) next 0x%08x\n", 1711f1ae32a1SGerd Hoffmann q->qhaddr, 1712f1ae32a1SGerd Hoffmann q->qh.epchar & QH_EPCHAR_H, 1713f1ae32a1SGerd Hoffmann q->qh.token & QTD_TOKEN_HALT, 1714f1ae32a1SGerd Hoffmann q->qh.token & QTD_TOKEN_ACTIVE, 1715f1ae32a1SGerd Hoffmann q->qh.next); 1716f1ae32a1SGerd Hoffmann } 1717f1ae32a1SGerd Hoffmann #endif 1718f1ae32a1SGerd Hoffmann 1719f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_HALT) { 1720f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_HORIZONTALQH); 1721f1ae32a1SGerd Hoffmann 1722f1ae32a1SGerd Hoffmann } else if ((q->qh.token & QTD_TOKEN_ACTIVE) && 1723f1ae32a1SGerd Hoffmann (NLPTR_TBIT(q->qh.current_qtd) == 0)) { 1724f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.current_qtd; 1725f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHQTD); 1726f1ae32a1SGerd Hoffmann 1727f1ae32a1SGerd Hoffmann } else { 1728f1ae32a1SGerd Hoffmann /* EHCI spec version 1.0 Section 4.10.2 */ 1729f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ADVANCEQUEUE); 1730f1ae32a1SGerd Hoffmann } 1731f1ae32a1SGerd Hoffmann 1732f1ae32a1SGerd Hoffmann out: 1733f1ae32a1SGerd Hoffmann return q; 1734f1ae32a1SGerd Hoffmann } 1735f1ae32a1SGerd Hoffmann 1736f1ae32a1SGerd Hoffmann static int ehci_state_fetchitd(EHCIState *ehci, int async) 1737f1ae32a1SGerd Hoffmann { 1738f1ae32a1SGerd Hoffmann uint32_t entry; 1739f1ae32a1SGerd Hoffmann EHCIitd itd; 1740f1ae32a1SGerd Hoffmann 1741f1ae32a1SGerd Hoffmann assert(!async); 1742f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1743f1ae32a1SGerd Hoffmann 174455903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd, 174555903f1dSGerd Hoffmann sizeof(EHCIitd) >> 2) < 0) { 174655903f1dSGerd Hoffmann return -1; 174755903f1dSGerd Hoffmann } 1748f1ae32a1SGerd Hoffmann ehci_trace_itd(ehci, entry, &itd); 1749f1ae32a1SGerd Hoffmann 1750e983395dSGerd Hoffmann if (ehci_process_itd(ehci, &itd, entry) != 0) { 1751f1ae32a1SGerd Hoffmann return -1; 1752f1ae32a1SGerd Hoffmann } 1753f1ae32a1SGerd Hoffmann 1754f1ae32a1SGerd Hoffmann put_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd, 1755f1ae32a1SGerd Hoffmann sizeof(EHCIitd) >> 2); 1756f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, itd.next); 1757f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1758f1ae32a1SGerd Hoffmann 1759f1ae32a1SGerd Hoffmann return 1; 1760f1ae32a1SGerd Hoffmann } 1761f1ae32a1SGerd Hoffmann 1762f1ae32a1SGerd Hoffmann static int ehci_state_fetchsitd(EHCIState *ehci, int async) 1763f1ae32a1SGerd Hoffmann { 1764f1ae32a1SGerd Hoffmann uint32_t entry; 1765f1ae32a1SGerd Hoffmann EHCIsitd sitd; 1766f1ae32a1SGerd Hoffmann 1767f1ae32a1SGerd Hoffmann assert(!async); 1768f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1769f1ae32a1SGerd Hoffmann 177055903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *)&sitd, 177155903f1dSGerd Hoffmann sizeof(EHCIsitd) >> 2) < 0) { 177255903f1dSGerd Hoffmann return 0; 177355903f1dSGerd Hoffmann } 1774f1ae32a1SGerd Hoffmann ehci_trace_sitd(ehci, entry, &sitd); 1775f1ae32a1SGerd Hoffmann 1776f1ae32a1SGerd Hoffmann if (!(sitd.results & SITD_RESULTS_ACTIVE)) { 1777f1ae32a1SGerd Hoffmann /* siTD is not active, nothing to do */; 1778f1ae32a1SGerd Hoffmann } else { 1779f1ae32a1SGerd Hoffmann /* TODO: split transfers are not implemented */ 1780f1ae32a1SGerd Hoffmann fprintf(stderr, "WARNING: Skipping active siTD\n"); 1781f1ae32a1SGerd Hoffmann } 1782f1ae32a1SGerd Hoffmann 1783f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, sitd.next); 1784f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1785f1ae32a1SGerd Hoffmann return 1; 1786f1ae32a1SGerd Hoffmann } 1787f1ae32a1SGerd Hoffmann 1788f1ae32a1SGerd Hoffmann /* Section 4.10.2 - paragraph 3 */ 1789ae0138a8SGerd Hoffmann static int ehci_state_advqueue(EHCIQueue *q) 1790f1ae32a1SGerd Hoffmann { 1791f1ae32a1SGerd Hoffmann #if 0 1792f1ae32a1SGerd Hoffmann /* TO-DO: 4.10.2 - paragraph 2 1793f1ae32a1SGerd Hoffmann * if I-bit is set to 1 and QH is not active 1794f1ae32a1SGerd Hoffmann * go to horizontal QH 1795f1ae32a1SGerd Hoffmann */ 1796f1ae32a1SGerd Hoffmann if (I-bit set) { 1797f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_HORIZONTALQH); 1798f1ae32a1SGerd Hoffmann goto out; 1799f1ae32a1SGerd Hoffmann } 1800f1ae32a1SGerd Hoffmann #endif 1801f1ae32a1SGerd Hoffmann 1802f1ae32a1SGerd Hoffmann /* 1803f1ae32a1SGerd Hoffmann * want data and alt-next qTD is valid 1804f1ae32a1SGerd Hoffmann */ 1805f1ae32a1SGerd Hoffmann if (((q->qh.token & QTD_TOKEN_TBYTES_MASK) != 0) && 1806f1ae32a1SGerd Hoffmann (NLPTR_TBIT(q->qh.altnext_qtd) == 0)) { 1807f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.altnext_qtd; 1808ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHQTD); 1809f1ae32a1SGerd Hoffmann 1810f1ae32a1SGerd Hoffmann /* 1811f1ae32a1SGerd Hoffmann * next qTD is valid 1812f1ae32a1SGerd Hoffmann */ 1813f1ae32a1SGerd Hoffmann } else if (NLPTR_TBIT(q->qh.next_qtd) == 0) { 1814f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.next_qtd; 1815ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHQTD); 1816f1ae32a1SGerd Hoffmann 1817f1ae32a1SGerd Hoffmann /* 1818f1ae32a1SGerd Hoffmann * no valid qTD, try next QH 1819f1ae32a1SGerd Hoffmann */ 1820f1ae32a1SGerd Hoffmann } else { 1821ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1822f1ae32a1SGerd Hoffmann } 1823f1ae32a1SGerd Hoffmann 1824f1ae32a1SGerd Hoffmann return 1; 1825f1ae32a1SGerd Hoffmann } 1826f1ae32a1SGerd Hoffmann 1827f1ae32a1SGerd Hoffmann /* Section 4.10.2 - paragraph 4 */ 1828ae0138a8SGerd Hoffmann static int ehci_state_fetchqtd(EHCIQueue *q) 1829f1ae32a1SGerd Hoffmann { 1830eb36a88eSGerd Hoffmann EHCIqtd qtd; 1831eb36a88eSGerd Hoffmann EHCIPacket *p; 1832b4ea8664SHans de Goede int again = 1; 1833f1ae32a1SGerd Hoffmann 183455903f1dSGerd Hoffmann if (get_dwords(q->ehci, NLPTR_GET(q->qtdaddr), (uint32_t *) &qtd, 183555903f1dSGerd Hoffmann sizeof(EHCIqtd) >> 2) < 0) { 183655903f1dSGerd Hoffmann return 0; 183755903f1dSGerd Hoffmann } 1838eb36a88eSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(q->qtdaddr), &qtd); 1839f1ae32a1SGerd Hoffmann 1840773dc9cdSGerd Hoffmann p = QTAILQ_FIRST(&q->packets); 1841287fd3f1SGerd Hoffmann if (p != NULL) { 1842c6432634SHans de Goede if (!ehci_verify_qtd(p, &qtd)) { 1843287fd3f1SGerd Hoffmann ehci_cancel_queue(q); 1844d066c57bSHans de Goede if (qtd.token & QTD_TOKEN_ACTIVE) { 1845d066c57bSHans de Goede ehci_trace_guest_bug(q->ehci, "guest updated active qTD"); 1846d066c57bSHans de Goede } 1847287fd3f1SGerd Hoffmann p = NULL; 1848287fd3f1SGerd Hoffmann } else { 1849287fd3f1SGerd Hoffmann p->qtd = qtd; 1850287fd3f1SGerd Hoffmann ehci_qh_do_overlay(q); 1851287fd3f1SGerd Hoffmann } 1852287fd3f1SGerd Hoffmann } 1853287fd3f1SGerd Hoffmann 1854287fd3f1SGerd Hoffmann if (!(qtd.token & QTD_TOKEN_ACTIVE)) { 1855287fd3f1SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1856287fd3f1SGerd Hoffmann } else if (p != NULL) { 1857adf47834SHans de Goede switch (p->async) { 1858adf47834SHans de Goede case EHCI_ASYNC_NONE: 1859ef5b2344SHans de Goede case EHCI_ASYNC_INITIALIZED: 1860cae5d3f4SHans de Goede /* Not yet executed (MULT), or previously nacked (int) packet */ 1861adf47834SHans de Goede ehci_set_state(q->ehci, q->async, EST_EXECUTE); 1862adf47834SHans de Goede break; 1863adf47834SHans de Goede case EHCI_ASYNC_INFLIGHT: 1864b4ea8664SHans de Goede /* Check if the guest has added new tds to the queue */ 186501e26b0eSHans de Goede again = ehci_fill_queue(QTAILQ_LAST(&q->packets, pkts_head)); 1866ef5b2344SHans de Goede /* Unfinished async handled packet, go horizontal */ 1867ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1868adf47834SHans de Goede break; 1869adf47834SHans de Goede case EHCI_ASYNC_FINISHED: 1870e3fdfd48SHans de Goede /* Complete executing of the packet */ 1871ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTING); 1872adf47834SHans de Goede break; 1873773dc9cdSGerd Hoffmann } 1874287fd3f1SGerd Hoffmann } else { 1875eb36a88eSGerd Hoffmann p = ehci_alloc_packet(q); 1876eb36a88eSGerd Hoffmann p->qtdaddr = q->qtdaddr; 1877eb36a88eSGerd Hoffmann p->qtd = qtd; 1878ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTE); 1879f1ae32a1SGerd Hoffmann } 1880f1ae32a1SGerd Hoffmann 1881f1ae32a1SGerd Hoffmann return again; 1882f1ae32a1SGerd Hoffmann } 1883f1ae32a1SGerd Hoffmann 1884ae0138a8SGerd Hoffmann static int ehci_state_horizqh(EHCIQueue *q) 1885f1ae32a1SGerd Hoffmann { 1886f1ae32a1SGerd Hoffmann int again = 0; 1887f1ae32a1SGerd Hoffmann 1888ae0138a8SGerd Hoffmann if (ehci_get_fetch_addr(q->ehci, q->async) != q->qh.next) { 1889ae0138a8SGerd Hoffmann ehci_set_fetch_addr(q->ehci, q->async, q->qh.next); 1890ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHENTRY); 1891f1ae32a1SGerd Hoffmann again = 1; 1892f1ae32a1SGerd Hoffmann } else { 1893ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_ACTIVE); 1894f1ae32a1SGerd Hoffmann } 1895f1ae32a1SGerd Hoffmann 1896f1ae32a1SGerd Hoffmann return again; 1897f1ae32a1SGerd Hoffmann } 1898f1ae32a1SGerd Hoffmann 189901e26b0eSHans de Goede /* Returns "again" */ 1900eff6dce7SHans de Goede static int ehci_fill_queue(EHCIPacket *p) 1901773dc9cdSGerd Hoffmann { 190236dfe324SHans de Goede USBEndpoint *ep = p->packet.ep; 1903773dc9cdSGerd Hoffmann EHCIQueue *q = p->queue; 1904773dc9cdSGerd Hoffmann EHCIqtd qtd = p->qtd; 1905601a2347SHans de Goede uint32_t qtdaddr; 1906773dc9cdSGerd Hoffmann 1907773dc9cdSGerd Hoffmann for (;;) { 1908773dc9cdSGerd Hoffmann if (NLPTR_TBIT(qtd.next) != 0) { 1909773dc9cdSGerd Hoffmann break; 1910773dc9cdSGerd Hoffmann } 1911773dc9cdSGerd Hoffmann qtdaddr = qtd.next; 1912e3a36bceSHans de Goede /* 1913e3a36bceSHans de Goede * Detect circular td lists, Windows creates these, counting on the 1914e3a36bceSHans de Goede * active bit going low after execution to make the queue stop. 1915e3a36bceSHans de Goede */ 1916601a2347SHans de Goede QTAILQ_FOREACH(p, &q->packets, next) { 1917601a2347SHans de Goede if (p->qtdaddr == qtdaddr) { 1918601a2347SHans de Goede goto leave; 1919601a2347SHans de Goede } 1920e3a36bceSHans de Goede } 192155903f1dSGerd Hoffmann if (get_dwords(q->ehci, NLPTR_GET(qtdaddr), 192255903f1dSGerd Hoffmann (uint32_t *) &qtd, sizeof(EHCIqtd) >> 2) < 0) { 192355903f1dSGerd Hoffmann return -1; 192455903f1dSGerd Hoffmann } 1925773dc9cdSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(qtdaddr), &qtd); 1926773dc9cdSGerd Hoffmann if (!(qtd.token & QTD_TOKEN_ACTIVE)) { 1927773dc9cdSGerd Hoffmann break; 1928773dc9cdSGerd Hoffmann } 1929bbbc39ccSHans de Goede if (!ehci_verify_pid(q, &qtd)) { 1930bbbc39ccSHans de Goede ehci_trace_guest_bug(q->ehci, "guest queued token with wrong pid"); 1931bbbc39ccSHans de Goede break; 1932bbbc39ccSHans de Goede } 1933773dc9cdSGerd Hoffmann p = ehci_alloc_packet(q); 1934773dc9cdSGerd Hoffmann p->qtdaddr = qtdaddr; 1935773dc9cdSGerd Hoffmann p->qtd = qtd; 193601e26b0eSHans de Goede if (ehci_execute(p, "queue") == -1) { 193701e26b0eSHans de Goede return -1; 1938eff6dce7SHans de Goede } 193901e26b0eSHans de Goede assert(p->packet.status == USB_RET_ASYNC); 1940773dc9cdSGerd Hoffmann p->async = EHCI_ASYNC_INFLIGHT; 1941773dc9cdSGerd Hoffmann } 1942601a2347SHans de Goede leave: 194336dfe324SHans de Goede usb_device_flush_ep_queue(ep->dev, ep); 194401e26b0eSHans de Goede return 1; 1945773dc9cdSGerd Hoffmann } 1946773dc9cdSGerd Hoffmann 1947ae0138a8SGerd Hoffmann static int ehci_state_execute(EHCIQueue *q) 1948f1ae32a1SGerd Hoffmann { 1949eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1950f1ae32a1SGerd Hoffmann int again = 0; 1951f1ae32a1SGerd Hoffmann 1952eb36a88eSGerd Hoffmann assert(p != NULL); 1953eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1954eb36a88eSGerd Hoffmann 1955f1ae32a1SGerd Hoffmann if (ehci_qh_do_overlay(q) != 0) { 1956f1ae32a1SGerd Hoffmann return -1; 1957f1ae32a1SGerd Hoffmann } 1958f1ae32a1SGerd Hoffmann 1959f1ae32a1SGerd Hoffmann // TODO verify enough time remains in the uframe as in 4.4.1.1 1960f1ae32a1SGerd Hoffmann // TODO write back ptr to async list when done or out of time 1961f1ae32a1SGerd Hoffmann 1962cae5d3f4SHans de Goede /* 4.10.3, bottom of page 82, go horizontal on transaction counter == 0 */ 1963cae5d3f4SHans de Goede if (!q->async && q->transact_ctr == 0) { 1964ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1965f1ae32a1SGerd Hoffmann again = 1; 1966f1ae32a1SGerd Hoffmann goto out; 1967f1ae32a1SGerd Hoffmann } 1968f1ae32a1SGerd Hoffmann 1969ae0138a8SGerd Hoffmann if (q->async) { 1970f1ae32a1SGerd Hoffmann ehci_set_usbsts(q->ehci, USBSTS_REC); 1971f1ae32a1SGerd Hoffmann } 1972f1ae32a1SGerd Hoffmann 197301e26b0eSHans de Goede again = ehci_execute(p, "process"); 197401e26b0eSHans de Goede if (again == -1) { 1975f1ae32a1SGerd Hoffmann goto out; 1976f1ae32a1SGerd Hoffmann } 197701e26b0eSHans de Goede if (p->packet.status == USB_RET_ASYNC) { 1978f1ae32a1SGerd Hoffmann ehci_flush_qh(q); 1979773dc9cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "async"); 1980eb36a88eSGerd Hoffmann p->async = EHCI_ASYNC_INFLIGHT; 1981ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1982cae5d3f4SHans de Goede if (q->async) { 198301e26b0eSHans de Goede again = ehci_fill_queue(p); 1984cae5d3f4SHans de Goede } else { 1985cae5d3f4SHans de Goede again = 1; 1986cae5d3f4SHans de Goede } 1987f1ae32a1SGerd Hoffmann goto out; 1988f1ae32a1SGerd Hoffmann } 1989f1ae32a1SGerd Hoffmann 1990ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTING); 1991f1ae32a1SGerd Hoffmann again = 1; 1992f1ae32a1SGerd Hoffmann 1993f1ae32a1SGerd Hoffmann out: 1994f1ae32a1SGerd Hoffmann return again; 1995f1ae32a1SGerd Hoffmann } 1996f1ae32a1SGerd Hoffmann 1997ae0138a8SGerd Hoffmann static int ehci_state_executing(EHCIQueue *q) 1998f1ae32a1SGerd Hoffmann { 1999eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 2000f1ae32a1SGerd Hoffmann 2001eb36a88eSGerd Hoffmann assert(p != NULL); 2002eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 2003eb36a88eSGerd Hoffmann 2004f1ae32a1SGerd Hoffmann ehci_execute_complete(q); 2005f1ae32a1SGerd Hoffmann 2006cae5d3f4SHans de Goede /* 4.10.3 */ 2007cae5d3f4SHans de Goede if (!q->async && q->transact_ctr > 0) { 2008cae5d3f4SHans de Goede q->transact_ctr--; 2009f1ae32a1SGerd Hoffmann } 2010f1ae32a1SGerd Hoffmann 2011f1ae32a1SGerd Hoffmann /* 4.10.5 */ 2012e696b1daSHans de Goede if (p->packet.status == USB_RET_NAK) { 2013ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 2014f1ae32a1SGerd Hoffmann } else { 2015ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_WRITEBACK); 2016f1ae32a1SGerd Hoffmann } 2017f1ae32a1SGerd Hoffmann 2018f1ae32a1SGerd Hoffmann ehci_flush_qh(q); 2019574ef171SHans de Goede return 1; 2020f1ae32a1SGerd Hoffmann } 2021f1ae32a1SGerd Hoffmann 2022f1ae32a1SGerd Hoffmann 2023ae0138a8SGerd Hoffmann static int ehci_state_writeback(EHCIQueue *q) 2024f1ae32a1SGerd Hoffmann { 2025eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 20264ed1c57aSGerd Hoffmann uint32_t *qtd, addr; 2027f1ae32a1SGerd Hoffmann int again = 0; 2028f1ae32a1SGerd Hoffmann 2029f1ae32a1SGerd Hoffmann /* Write back the QTD from the QH area */ 2030eb36a88eSGerd Hoffmann assert(p != NULL); 2031eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 2032eb36a88eSGerd Hoffmann 2033eb36a88eSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(p->qtdaddr), (EHCIqtd *) &q->qh.next_qtd); 20344ed1c57aSGerd Hoffmann qtd = (uint32_t *) &q->qh.next_qtd; 20354ed1c57aSGerd Hoffmann addr = NLPTR_GET(p->qtdaddr); 20364ed1c57aSGerd Hoffmann put_dwords(q->ehci, addr + 2 * sizeof(uint32_t), qtd + 2, 2); 2037eb36a88eSGerd Hoffmann ehci_free_packet(p); 2038f1ae32a1SGerd Hoffmann 2039f1ae32a1SGerd Hoffmann /* 2040f1ae32a1SGerd Hoffmann * EHCI specs say go horizontal here. 2041f1ae32a1SGerd Hoffmann * 2042f1ae32a1SGerd Hoffmann * We can also advance the queue here for performance reasons. We 2043f1ae32a1SGerd Hoffmann * need to take care to only take that shortcut in case we've 2044f1ae32a1SGerd Hoffmann * processed the qtd just written back without errors, i.e. halt 2045f1ae32a1SGerd Hoffmann * bit is clear. 2046f1ae32a1SGerd Hoffmann */ 2047f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_HALT) { 2048ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 2049f1ae32a1SGerd Hoffmann again = 1; 2050f1ae32a1SGerd Hoffmann } else { 2051ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_ADVANCEQUEUE); 2052f1ae32a1SGerd Hoffmann again = 1; 2053f1ae32a1SGerd Hoffmann } 2054f1ae32a1SGerd Hoffmann return again; 2055f1ae32a1SGerd Hoffmann } 2056f1ae32a1SGerd Hoffmann 2057f1ae32a1SGerd Hoffmann /* 2058f1ae32a1SGerd Hoffmann * This is the state machine that is common to both async and periodic 2059f1ae32a1SGerd Hoffmann */ 2060f1ae32a1SGerd Hoffmann 2061ae0138a8SGerd Hoffmann static void ehci_advance_state(EHCIState *ehci, int async) 2062f1ae32a1SGerd Hoffmann { 2063f1ae32a1SGerd Hoffmann EHCIQueue *q = NULL; 2064f1ae32a1SGerd Hoffmann int again; 2065f1ae32a1SGerd Hoffmann 2066f1ae32a1SGerd Hoffmann do { 2067f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2068f1ae32a1SGerd Hoffmann case EST_WAITLISTHEAD: 2069f1ae32a1SGerd Hoffmann again = ehci_state_waitlisthead(ehci, async); 2070f1ae32a1SGerd Hoffmann break; 2071f1ae32a1SGerd Hoffmann 2072f1ae32a1SGerd Hoffmann case EST_FETCHENTRY: 2073f1ae32a1SGerd Hoffmann again = ehci_state_fetchentry(ehci, async); 2074f1ae32a1SGerd Hoffmann break; 2075f1ae32a1SGerd Hoffmann 2076f1ae32a1SGerd Hoffmann case EST_FETCHQH: 2077f1ae32a1SGerd Hoffmann q = ehci_state_fetchqh(ehci, async); 2078ae0138a8SGerd Hoffmann if (q != NULL) { 2079ae0138a8SGerd Hoffmann assert(q->async == async); 2080ae0138a8SGerd Hoffmann again = 1; 2081ae0138a8SGerd Hoffmann } else { 2082ae0138a8SGerd Hoffmann again = 0; 2083ae0138a8SGerd Hoffmann } 2084f1ae32a1SGerd Hoffmann break; 2085f1ae32a1SGerd Hoffmann 2086f1ae32a1SGerd Hoffmann case EST_FETCHITD: 2087f1ae32a1SGerd Hoffmann again = ehci_state_fetchitd(ehci, async); 2088f1ae32a1SGerd Hoffmann break; 2089f1ae32a1SGerd Hoffmann 2090f1ae32a1SGerd Hoffmann case EST_FETCHSITD: 2091f1ae32a1SGerd Hoffmann again = ehci_state_fetchsitd(ehci, async); 2092f1ae32a1SGerd Hoffmann break; 2093f1ae32a1SGerd Hoffmann 2094f1ae32a1SGerd Hoffmann case EST_ADVANCEQUEUE: 2095ae0138a8SGerd Hoffmann again = ehci_state_advqueue(q); 2096f1ae32a1SGerd Hoffmann break; 2097f1ae32a1SGerd Hoffmann 2098f1ae32a1SGerd Hoffmann case EST_FETCHQTD: 2099ae0138a8SGerd Hoffmann again = ehci_state_fetchqtd(q); 2100f1ae32a1SGerd Hoffmann break; 2101f1ae32a1SGerd Hoffmann 2102f1ae32a1SGerd Hoffmann case EST_HORIZONTALQH: 2103ae0138a8SGerd Hoffmann again = ehci_state_horizqh(q); 2104f1ae32a1SGerd Hoffmann break; 2105f1ae32a1SGerd Hoffmann 2106f1ae32a1SGerd Hoffmann case EST_EXECUTE: 2107ae0138a8SGerd Hoffmann again = ehci_state_execute(q); 21083a215326SGerd Hoffmann if (async) { 21093a215326SGerd Hoffmann ehci->async_stepdown = 0; 21103a215326SGerd Hoffmann } 2111f1ae32a1SGerd Hoffmann break; 2112f1ae32a1SGerd Hoffmann 2113f1ae32a1SGerd Hoffmann case EST_EXECUTING: 2114f1ae32a1SGerd Hoffmann assert(q != NULL); 21153a215326SGerd Hoffmann if (async) { 21163a215326SGerd Hoffmann ehci->async_stepdown = 0; 21173a215326SGerd Hoffmann } 2118ae0138a8SGerd Hoffmann again = ehci_state_executing(q); 2119f1ae32a1SGerd Hoffmann break; 2120f1ae32a1SGerd Hoffmann 2121f1ae32a1SGerd Hoffmann case EST_WRITEBACK: 2122f1ae32a1SGerd Hoffmann assert(q != NULL); 2123ae0138a8SGerd Hoffmann again = ehci_state_writeback(q); 212480826240SHans de Goede if (!async) { 212580826240SHans de Goede ehci->periodic_sched_active = PERIODIC_ACTIVE; 212680826240SHans de Goede } 2127f1ae32a1SGerd Hoffmann break; 2128f1ae32a1SGerd Hoffmann 2129f1ae32a1SGerd Hoffmann default: 2130f1ae32a1SGerd Hoffmann fprintf(stderr, "Bad state!\n"); 2131f1ae32a1SGerd Hoffmann again = -1; 2132f1ae32a1SGerd Hoffmann assert(0); 2133f1ae32a1SGerd Hoffmann break; 2134f1ae32a1SGerd Hoffmann } 2135f1ae32a1SGerd Hoffmann 2136f1ae32a1SGerd Hoffmann if (again < 0) { 2137f1ae32a1SGerd Hoffmann fprintf(stderr, "processing error - resetting ehci HC\n"); 2138f1ae32a1SGerd Hoffmann ehci_reset(ehci); 2139f1ae32a1SGerd Hoffmann again = 0; 2140f1ae32a1SGerd Hoffmann } 2141f1ae32a1SGerd Hoffmann } 2142f1ae32a1SGerd Hoffmann while (again); 2143f1ae32a1SGerd Hoffmann } 2144f1ae32a1SGerd Hoffmann 2145f1ae32a1SGerd Hoffmann static void ehci_advance_async_state(EHCIState *ehci) 2146f1ae32a1SGerd Hoffmann { 2147f1ae32a1SGerd Hoffmann const int async = 1; 2148f1ae32a1SGerd Hoffmann 2149f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2150f1ae32a1SGerd Hoffmann case EST_INACTIVE: 2151ec807d12SGerd Hoffmann if (!ehci_async_enabled(ehci)) { 2152f1ae32a1SGerd Hoffmann break; 2153f1ae32a1SGerd Hoffmann } 2154f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 2155f1ae32a1SGerd Hoffmann // No break, fall through to ACTIVE 2156f1ae32a1SGerd Hoffmann 2157f1ae32a1SGerd Hoffmann case EST_ACTIVE: 2158ec807d12SGerd Hoffmann if (!ehci_async_enabled(ehci)) { 2159f1ae32a1SGerd Hoffmann ehci_queues_rip_all(ehci, async); 2160f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_INACTIVE); 2161f1ae32a1SGerd Hoffmann break; 2162f1ae32a1SGerd Hoffmann } 2163f1ae32a1SGerd Hoffmann 2164f1ae32a1SGerd Hoffmann /* make sure guest has acknowledged the doorbell interrupt */ 2165f1ae32a1SGerd Hoffmann /* TO-DO: is this really needed? */ 2166f1ae32a1SGerd Hoffmann if (ehci->usbsts & USBSTS_IAA) { 2167f1ae32a1SGerd Hoffmann DPRINTF("IAA status bit still set.\n"); 2168f1ae32a1SGerd Hoffmann break; 2169f1ae32a1SGerd Hoffmann } 2170f1ae32a1SGerd Hoffmann 2171f1ae32a1SGerd Hoffmann /* check that address register has been set */ 2172f1ae32a1SGerd Hoffmann if (ehci->asynclistaddr == 0) { 2173f1ae32a1SGerd Hoffmann break; 2174f1ae32a1SGerd Hoffmann } 2175f1ae32a1SGerd Hoffmann 2176f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_WAITLISTHEAD); 2177f1ae32a1SGerd Hoffmann ehci_advance_state(ehci, async); 2178f1ae32a1SGerd Hoffmann 2179f1ae32a1SGerd Hoffmann /* If the doorbell is set, the guest wants to make a change to the 2180f1ae32a1SGerd Hoffmann * schedule. The host controller needs to release cached data. 2181f1ae32a1SGerd Hoffmann * (section 4.8.2) 2182f1ae32a1SGerd Hoffmann */ 2183f1ae32a1SGerd Hoffmann if (ehci->usbcmd & USBCMD_IAAD) { 2184f1ae32a1SGerd Hoffmann /* Remove all unseen qhs from the async qhs queue */ 21858f5457ebSHans de Goede ehci_queues_rip_unseen(ehci, async); 21861defcbd1SGerd Hoffmann trace_usb_ehci_doorbell_ack(); 2187f1ae32a1SGerd Hoffmann ehci->usbcmd &= ~USBCMD_IAAD; 21887efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_IAA); 2189f1ae32a1SGerd Hoffmann } 2190f1ae32a1SGerd Hoffmann break; 2191f1ae32a1SGerd Hoffmann 2192f1ae32a1SGerd Hoffmann default: 2193f1ae32a1SGerd Hoffmann /* this should only be due to a developer mistake */ 2194f1ae32a1SGerd Hoffmann fprintf(stderr, "ehci: Bad asynchronous state %d. " 2195f1ae32a1SGerd Hoffmann "Resetting to active\n", ehci->astate); 2196f1ae32a1SGerd Hoffmann assert(0); 2197f1ae32a1SGerd Hoffmann } 2198f1ae32a1SGerd Hoffmann } 2199f1ae32a1SGerd Hoffmann 2200f1ae32a1SGerd Hoffmann static void ehci_advance_periodic_state(EHCIState *ehci) 2201f1ae32a1SGerd Hoffmann { 2202f1ae32a1SGerd Hoffmann uint32_t entry; 2203f1ae32a1SGerd Hoffmann uint32_t list; 2204f1ae32a1SGerd Hoffmann const int async = 0; 2205f1ae32a1SGerd Hoffmann 2206f1ae32a1SGerd Hoffmann // 4.6 2207f1ae32a1SGerd Hoffmann 2208f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2209f1ae32a1SGerd Hoffmann case EST_INACTIVE: 2210ec807d12SGerd Hoffmann if (!(ehci->frindex & 7) && ehci_periodic_enabled(ehci)) { 2211f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 2212f1ae32a1SGerd Hoffmann // No break, fall through to ACTIVE 2213f1ae32a1SGerd Hoffmann } else 2214f1ae32a1SGerd Hoffmann break; 2215f1ae32a1SGerd Hoffmann 2216f1ae32a1SGerd Hoffmann case EST_ACTIVE: 2217ec807d12SGerd Hoffmann if (!(ehci->frindex & 7) && !ehci_periodic_enabled(ehci)) { 2218f1ae32a1SGerd Hoffmann ehci_queues_rip_all(ehci, async); 2219f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_INACTIVE); 2220f1ae32a1SGerd Hoffmann break; 2221f1ae32a1SGerd Hoffmann } 2222f1ae32a1SGerd Hoffmann 2223f1ae32a1SGerd Hoffmann list = ehci->periodiclistbase & 0xfffff000; 2224f1ae32a1SGerd Hoffmann /* check that register has been set */ 2225f1ae32a1SGerd Hoffmann if (list == 0) { 2226f1ae32a1SGerd Hoffmann break; 2227f1ae32a1SGerd Hoffmann } 2228f1ae32a1SGerd Hoffmann list |= ((ehci->frindex & 0x1ff8) >> 1); 2229f1ae32a1SGerd Hoffmann 223055903f1dSGerd Hoffmann if (get_dwords(ehci, list, &entry, 1) < 0) { 223155903f1dSGerd Hoffmann break; 223255903f1dSGerd Hoffmann } 2233f1ae32a1SGerd Hoffmann 2234f1ae32a1SGerd Hoffmann DPRINTF("PERIODIC state adv fr=%d. [%08X] -> %08X\n", 2235f1ae32a1SGerd Hoffmann ehci->frindex / 8, list, entry); 2236f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async,entry); 2237f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 2238f1ae32a1SGerd Hoffmann ehci_advance_state(ehci, async); 22398f5457ebSHans de Goede ehci_queues_rip_unused(ehci, async); 2240f1ae32a1SGerd Hoffmann break; 2241f1ae32a1SGerd Hoffmann 2242f1ae32a1SGerd Hoffmann default: 2243f1ae32a1SGerd Hoffmann /* this should only be due to a developer mistake */ 2244f1ae32a1SGerd Hoffmann fprintf(stderr, "ehci: Bad periodic state %d. " 2245f1ae32a1SGerd Hoffmann "Resetting to active\n", ehci->pstate); 2246f1ae32a1SGerd Hoffmann assert(0); 2247f1ae32a1SGerd Hoffmann } 2248f1ae32a1SGerd Hoffmann } 2249f1ae32a1SGerd Hoffmann 22509359a58bSHans de Goede static void ehci_update_frindex(EHCIState *ehci, int uframes) 22516ceced0bSGerd Hoffmann { 22526ceced0bSGerd Hoffmann int i; 22536ceced0bSGerd Hoffmann 22549359a58bSHans de Goede if (!ehci_enabled(ehci) && ehci->pstate == EST_INACTIVE) { 22556ceced0bSGerd Hoffmann return; 22566ceced0bSGerd Hoffmann } 22576ceced0bSGerd Hoffmann 22589359a58bSHans de Goede for (i = 0; i < uframes; i++) { 22599359a58bSHans de Goede ehci->frindex++; 22606ceced0bSGerd Hoffmann 22616ceced0bSGerd Hoffmann if (ehci->frindex == 0x00002000) { 22627efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_FLR); 22636ceced0bSGerd Hoffmann } 22646ceced0bSGerd Hoffmann 22656ceced0bSGerd Hoffmann if (ehci->frindex == 0x00004000) { 22667efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_FLR); 22676ceced0bSGerd Hoffmann ehci->frindex = 0; 2268ffa1f2e0SHans de Goede if (ehci->usbsts_frindex >= 0x00004000) { 22697efc17afSGerd Hoffmann ehci->usbsts_frindex -= 0x00004000; 22707efc17afSGerd Hoffmann } else { 22717efc17afSGerd Hoffmann ehci->usbsts_frindex = 0; 22727efc17afSGerd Hoffmann } 22736ceced0bSGerd Hoffmann } 22746ceced0bSGerd Hoffmann } 22756ceced0bSGerd Hoffmann } 22766ceced0bSGerd Hoffmann 2277f1ae32a1SGerd Hoffmann static void ehci_frame_timer(void *opaque) 2278f1ae32a1SGerd Hoffmann { 2279f1ae32a1SGerd Hoffmann EHCIState *ehci = opaque; 22807efc17afSGerd Hoffmann int need_timer = 0; 2281f1ae32a1SGerd Hoffmann int64_t expire_time, t_now; 2282f1ae32a1SGerd Hoffmann uint64_t ns_elapsed; 22839359a58bSHans de Goede int uframes, skipped_uframes; 2284f1ae32a1SGerd Hoffmann int i; 2285f1ae32a1SGerd Hoffmann 2286f1ae32a1SGerd Hoffmann t_now = qemu_get_clock_ns(vm_clock); 2287f1ae32a1SGerd Hoffmann ns_elapsed = t_now - ehci->last_run_ns; 22889359a58bSHans de Goede uframes = ns_elapsed / UFRAME_TIMER_NS; 2289f1ae32a1SGerd Hoffmann 22903a215326SGerd Hoffmann if (ehci_periodic_enabled(ehci) || ehci->pstate != EST_INACTIVE) { 22917efc17afSGerd Hoffmann need_timer++; 22923a215326SGerd Hoffmann 22939359a58bSHans de Goede if (uframes > (ehci->maxframes * 8)) { 22949359a58bSHans de Goede skipped_uframes = uframes - (ehci->maxframes * 8); 22959359a58bSHans de Goede ehci_update_frindex(ehci, skipped_uframes); 22969359a58bSHans de Goede ehci->last_run_ns += UFRAME_TIMER_NS * skipped_uframes; 22979359a58bSHans de Goede uframes -= skipped_uframes; 22989359a58bSHans de Goede DPRINTF("WARNING - EHCI skipped %d uframes\n", skipped_uframes); 2299f1ae32a1SGerd Hoffmann } 2300f1ae32a1SGerd Hoffmann 23019359a58bSHans de Goede for (i = 0; i < uframes; i++) { 23028f74ed1eSHans de Goede /* 23038f74ed1eSHans de Goede * If we're running behind schedule, we should not catch up 23048f74ed1eSHans de Goede * too fast, as that will make some guests unhappy: 23059359a58bSHans de Goede * 1) We must process a minimum of MIN_UFR_PER_TICK frames, 23068f74ed1eSHans de Goede * otherwise we will never catch up 23078f74ed1eSHans de Goede * 2) Process frames until the guest has requested an irq (IOC) 23088f74ed1eSHans de Goede */ 23099359a58bSHans de Goede if (i >= MIN_UFR_PER_TICK) { 23108f74ed1eSHans de Goede ehci_commit_irq(ehci); 23118f74ed1eSHans de Goede if ((ehci->usbsts & USBINTR_MASK) & ehci->usbintr) { 23128f74ed1eSHans de Goede break; 23138f74ed1eSHans de Goede } 23148f74ed1eSHans de Goede } 231580826240SHans de Goede if (ehci->periodic_sched_active) { 231680826240SHans de Goede ehci->periodic_sched_active--; 231780826240SHans de Goede } 2318f020ed36SGerd Hoffmann ehci_update_frindex(ehci, 1); 23199359a58bSHans de Goede if ((ehci->frindex & 7) == 0) { 2320f020ed36SGerd Hoffmann ehci_advance_periodic_state(ehci); 23219359a58bSHans de Goede } 23229359a58bSHans de Goede ehci->last_run_ns += UFRAME_TIMER_NS; 2323f1ae32a1SGerd Hoffmann } 23243a215326SGerd Hoffmann } else { 232580826240SHans de Goede ehci->periodic_sched_active = 0; 23269359a58bSHans de Goede ehci_update_frindex(ehci, uframes); 23279359a58bSHans de Goede ehci->last_run_ns += UFRAME_TIMER_NS * uframes; 23283a215326SGerd Hoffmann } 2329f1ae32a1SGerd Hoffmann 233080826240SHans de Goede if (ehci->periodic_sched_active) { 233180826240SHans de Goede ehci->async_stepdown = 0; 233280826240SHans de Goede } else if (ehci->async_stepdown < ehci->maxframes / 2) { 233380826240SHans de Goede ehci->async_stepdown++; 233480826240SHans de Goede } 233580826240SHans de Goede 2336f1ae32a1SGerd Hoffmann /* Async is not inside loop since it executes everything it can once 2337f1ae32a1SGerd Hoffmann * called 2338f1ae32a1SGerd Hoffmann */ 23393a215326SGerd Hoffmann if (ehci_async_enabled(ehci) || ehci->astate != EST_INACTIVE) { 23407efc17afSGerd Hoffmann need_timer++; 2341afb7a0b8SGerd Hoffmann ehci_advance_async_state(ehci); 23423a215326SGerd Hoffmann } 2343f1ae32a1SGerd Hoffmann 23447efc17afSGerd Hoffmann ehci_commit_irq(ehci); 23457efc17afSGerd Hoffmann if (ehci->usbsts_pending) { 23467efc17afSGerd Hoffmann need_timer++; 23477efc17afSGerd Hoffmann ehci->async_stepdown = 0; 2348f1ae32a1SGerd Hoffmann } 2349f0ad01f9SGerd Hoffmann 235040862309SGerd Hoffmann if (ehci_enabled(ehci) && (ehci->usbintr & USBSTS_FLR)) { 235140862309SGerd Hoffmann need_timer++; 235240862309SGerd Hoffmann } 235340862309SGerd Hoffmann 23547efc17afSGerd Hoffmann if (need_timer) { 235544272b0fSHans de Goede /* If we've raised int, we speed up the timer, so that we quickly 235644272b0fSHans de Goede * notice any new packets queued up in response */ 235744272b0fSHans de Goede if (ehci->int_req_by_async && (ehci->usbsts & USBSTS_INT)) { 235852c15e59SHans de Goede expire_time = t_now + get_ticks_per_sec() / (FRAME_TIMER_FREQ * 4); 235944272b0fSHans de Goede ehci->int_req_by_async = false; 236044272b0fSHans de Goede } else { 2361afb7a0b8SGerd Hoffmann expire_time = t_now + (get_ticks_per_sec() 2362afb7a0b8SGerd Hoffmann * (ehci->async_stepdown+1) / FRAME_TIMER_FREQ); 236344272b0fSHans de Goede } 23647efc17afSGerd Hoffmann qemu_mod_timer(ehci->frame_timer, expire_time); 23657efc17afSGerd Hoffmann } 2366daf25307SGerd Hoffmann } 2367f1ae32a1SGerd Hoffmann 23683e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_caps_ops = { 23693e4f910cSGerd Hoffmann .read = ehci_caps_read, 23703e4f910cSGerd Hoffmann .valid.min_access_size = 1, 23713e4f910cSGerd Hoffmann .valid.max_access_size = 4, 23723e4f910cSGerd Hoffmann .impl.min_access_size = 1, 23733e4f910cSGerd Hoffmann .impl.max_access_size = 1, 23743e4f910cSGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 23753e4f910cSGerd Hoffmann }; 23763e4f910cSGerd Hoffmann 23773e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_opreg_ops = { 23783e4f910cSGerd Hoffmann .read = ehci_opreg_read, 23793e4f910cSGerd Hoffmann .write = ehci_opreg_write, 23803e4f910cSGerd Hoffmann .valid.min_access_size = 4, 23813e4f910cSGerd Hoffmann .valid.max_access_size = 4, 23823e4f910cSGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 23833e4f910cSGerd Hoffmann }; 23843e4f910cSGerd Hoffmann 23853e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_port_ops = { 23863e4f910cSGerd Hoffmann .read = ehci_port_read, 23873e4f910cSGerd Hoffmann .write = ehci_port_write, 23883e4f910cSGerd Hoffmann .valid.min_access_size = 4, 23893e4f910cSGerd Hoffmann .valid.max_access_size = 4, 2390f1ae32a1SGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 2391f1ae32a1SGerd Hoffmann }; 2392f1ae32a1SGerd Hoffmann 2393f1ae32a1SGerd Hoffmann static USBPortOps ehci_port_ops = { 2394f1ae32a1SGerd Hoffmann .attach = ehci_attach, 2395f1ae32a1SGerd Hoffmann .detach = ehci_detach, 2396f1ae32a1SGerd Hoffmann .child_detach = ehci_child_detach, 2397f1ae32a1SGerd Hoffmann .wakeup = ehci_wakeup, 2398f1ae32a1SGerd Hoffmann .complete = ehci_async_complete_packet, 2399f1ae32a1SGerd Hoffmann }; 2400f1ae32a1SGerd Hoffmann 2401f1ae32a1SGerd Hoffmann static USBBusOps ehci_bus_ops = { 2402f1ae32a1SGerd Hoffmann .register_companion = ehci_register_companion, 240380826240SHans de Goede .wakeup_endpoint = ehci_wakeup_endpoint, 2404f1ae32a1SGerd Hoffmann }; 2405f1ae32a1SGerd Hoffmann 24069359a58bSHans de Goede static void usb_ehci_pre_save(void *opaque) 24079359a58bSHans de Goede { 24089359a58bSHans de Goede EHCIState *ehci = opaque; 24099359a58bSHans de Goede uint32_t new_frindex; 24109359a58bSHans de Goede 24119359a58bSHans de Goede /* Round down frindex to a multiple of 8 for migration compatibility */ 24129359a58bSHans de Goede new_frindex = ehci->frindex & ~7; 24139359a58bSHans de Goede ehci->last_run_ns -= (ehci->frindex - new_frindex) * UFRAME_TIMER_NS; 24149359a58bSHans de Goede ehci->frindex = new_frindex; 24159359a58bSHans de Goede } 24169359a58bSHans de Goede 24179a773408SGerd Hoffmann static int usb_ehci_post_load(void *opaque, int version_id) 24189a773408SGerd Hoffmann { 24199a773408SGerd Hoffmann EHCIState *s = opaque; 24209a773408SGerd Hoffmann int i; 24219a773408SGerd Hoffmann 24229a773408SGerd Hoffmann for (i = 0; i < NB_PORTS; i++) { 24239a773408SGerd Hoffmann USBPort *companion = s->companion_ports[i]; 24249a773408SGerd Hoffmann if (companion == NULL) { 24259a773408SGerd Hoffmann continue; 24269a773408SGerd Hoffmann } 24279a773408SGerd Hoffmann if (s->portsc[i] & PORTSC_POWNER) { 24289a773408SGerd Hoffmann companion->dev = s->ports[i].dev; 24299a773408SGerd Hoffmann } else { 24309a773408SGerd Hoffmann companion->dev = NULL; 24319a773408SGerd Hoffmann } 24329a773408SGerd Hoffmann } 24339a773408SGerd Hoffmann 24349a773408SGerd Hoffmann return 0; 24359a773408SGerd Hoffmann } 24369a773408SGerd Hoffmann 2437ceab6f96SHans de Goede static void usb_ehci_vm_state_change(void *opaque, int running, RunState state) 2438ceab6f96SHans de Goede { 2439ceab6f96SHans de Goede EHCIState *ehci = opaque; 2440ceab6f96SHans de Goede 2441ceab6f96SHans de Goede /* 2442ceab6f96SHans de Goede * We don't migrate the EHCIQueue-s, instead we rebuild them for the 2443ceab6f96SHans de Goede * schedule in guest memory. We must do the rebuilt ASAP, so that 2444ceab6f96SHans de Goede * USB-devices which have async handled packages have a packet in the 2445ceab6f96SHans de Goede * ep queue to match the completion with. 2446ceab6f96SHans de Goede */ 2447ceab6f96SHans de Goede if (state == RUN_STATE_RUNNING) { 2448ceab6f96SHans de Goede ehci_advance_async_state(ehci); 2449ceab6f96SHans de Goede } 2450ceab6f96SHans de Goede 2451ceab6f96SHans de Goede /* 2452ceab6f96SHans de Goede * The schedule rebuilt from guest memory could cause the migration dest 2453ceab6f96SHans de Goede * to miss a QH unlink, and fail to cancel packets, since the unlinked QH 2454ceab6f96SHans de Goede * will never have existed on the destination. Therefor we must flush the 2455ceab6f96SHans de Goede * async schedule on savevm to catch any not yet noticed unlinks. 2456ceab6f96SHans de Goede */ 2457ceab6f96SHans de Goede if (state == RUN_STATE_SAVE_VM) { 2458ceab6f96SHans de Goede ehci_advance_async_state(ehci); 2459ceab6f96SHans de Goede ehci_queues_rip_unseen(ehci, 1); 2460ceab6f96SHans de Goede } 2461ceab6f96SHans de Goede } 2462ceab6f96SHans de Goede 24630bf96f94SGerd Hoffmann const VMStateDescription vmstate_ehci = { 24645010d4dcSPeter Crosthwaite .name = "ehci-core", 24656d3b6d3dSGerd Hoffmann .version_id = 2, 24666d3b6d3dSGerd Hoffmann .minimum_version_id = 1, 24679359a58bSHans de Goede .pre_save = usb_ehci_pre_save, 24689a773408SGerd Hoffmann .post_load = usb_ehci_post_load, 24699a773408SGerd Hoffmann .fields = (VMStateField[]) { 24709a773408SGerd Hoffmann /* mmio registers */ 24719a773408SGerd Hoffmann VMSTATE_UINT32(usbcmd, EHCIState), 24729a773408SGerd Hoffmann VMSTATE_UINT32(usbsts, EHCIState), 24736d3b6d3dSGerd Hoffmann VMSTATE_UINT32_V(usbsts_pending, EHCIState, 2), 24746d3b6d3dSGerd Hoffmann VMSTATE_UINT32_V(usbsts_frindex, EHCIState, 2), 24759a773408SGerd Hoffmann VMSTATE_UINT32(usbintr, EHCIState), 24769a773408SGerd Hoffmann VMSTATE_UINT32(frindex, EHCIState), 24779a773408SGerd Hoffmann VMSTATE_UINT32(ctrldssegment, EHCIState), 24789a773408SGerd Hoffmann VMSTATE_UINT32(periodiclistbase, EHCIState), 24799a773408SGerd Hoffmann VMSTATE_UINT32(asynclistaddr, EHCIState), 24809a773408SGerd Hoffmann VMSTATE_UINT32(configflag, EHCIState), 24819a773408SGerd Hoffmann VMSTATE_UINT32(portsc[0], EHCIState), 24829a773408SGerd Hoffmann VMSTATE_UINT32(portsc[1], EHCIState), 24839a773408SGerd Hoffmann VMSTATE_UINT32(portsc[2], EHCIState), 24849a773408SGerd Hoffmann VMSTATE_UINT32(portsc[3], EHCIState), 24859a773408SGerd Hoffmann VMSTATE_UINT32(portsc[4], EHCIState), 24869a773408SGerd Hoffmann VMSTATE_UINT32(portsc[5], EHCIState), 24879a773408SGerd Hoffmann /* frame timer */ 24889a773408SGerd Hoffmann VMSTATE_TIMER(frame_timer, EHCIState), 24899a773408SGerd Hoffmann VMSTATE_UINT64(last_run_ns, EHCIState), 24909a773408SGerd Hoffmann VMSTATE_UINT32(async_stepdown, EHCIState), 24919a773408SGerd Hoffmann /* schedule state */ 24929a773408SGerd Hoffmann VMSTATE_UINT32(astate, EHCIState), 24939a773408SGerd Hoffmann VMSTATE_UINT32(pstate, EHCIState), 24949a773408SGerd Hoffmann VMSTATE_UINT32(a_fetch_addr, EHCIState), 24959a773408SGerd Hoffmann VMSTATE_UINT32(p_fetch_addr, EHCIState), 24969a773408SGerd Hoffmann VMSTATE_END_OF_LIST() 24979a773408SGerd Hoffmann } 2498f1ae32a1SGerd Hoffmann }; 2499f1ae32a1SGerd Hoffmann 25000bf96f94SGerd Hoffmann void usb_ehci_initfn(EHCIState *s, DeviceState *dev) 2501f1ae32a1SGerd Hoffmann { 2502f1ae32a1SGerd Hoffmann int i; 2503f1ae32a1SGerd Hoffmann 25043e4f910cSGerd Hoffmann /* 2.2 host controller interface version */ 250527a11324SPeter Crosthwaite s->caps[0x00] = (uint8_t)(s->opregbase - s->capsbase); 25063e4f910cSGerd Hoffmann s->caps[0x01] = 0x00; 25073e4f910cSGerd Hoffmann s->caps[0x02] = 0x00; 25083e4f910cSGerd Hoffmann s->caps[0x03] = 0x01; /* HC version */ 25093e4f910cSGerd Hoffmann s->caps[0x04] = NB_PORTS; /* Number of downstream ports */ 25103e4f910cSGerd Hoffmann s->caps[0x05] = 0x00; /* No companion ports at present */ 25113e4f910cSGerd Hoffmann s->caps[0x06] = 0x00; 25123e4f910cSGerd Hoffmann s->caps[0x07] = 0x00; 25133e4f910cSGerd Hoffmann s->caps[0x08] = 0x80; /* We can cache whole frame, no 64-bit */ 25143e4f910cSGerd Hoffmann s->caps[0x0a] = 0x00; 25153e4f910cSGerd Hoffmann s->caps[0x0b] = 0x00; 2516f1ae32a1SGerd Hoffmann 25175010d4dcSPeter Crosthwaite usb_bus_new(&s->bus, &ehci_bus_ops, dev); 2518f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) { 2519f1ae32a1SGerd Hoffmann usb_register_port(&s->bus, &s->ports[i], s, i, &ehci_port_ops, 2520f1ae32a1SGerd Hoffmann USB_SPEED_MASK_HIGH); 2521f1ae32a1SGerd Hoffmann s->ports[i].dev = 0; 2522f1ae32a1SGerd Hoffmann } 2523f1ae32a1SGerd Hoffmann 2524f1ae32a1SGerd Hoffmann s->frame_timer = qemu_new_timer_ns(vm_clock, ehci_frame_timer, s); 25250262f65aSHans de Goede s->async_bh = qemu_bh_new(ehci_frame_timer, s); 2526f1ae32a1SGerd Hoffmann QTAILQ_INIT(&s->aqueues); 2527f1ae32a1SGerd Hoffmann QTAILQ_INIT(&s->pqueues); 25287341ea07SHans de Goede usb_packet_init(&s->ipacket); 2529f1ae32a1SGerd Hoffmann 2530f1ae32a1SGerd Hoffmann qemu_register_reset(ehci_reset, s); 2531ceab6f96SHans de Goede qemu_add_vm_change_state_handler(usb_ehci_vm_state_change, s); 2532f1ae32a1SGerd Hoffmann 25333e4f910cSGerd Hoffmann memory_region_init(&s->mem, "ehci", MMIO_SIZE); 25343e4f910cSGerd Hoffmann memory_region_init_io(&s->mem_caps, &ehci_mmio_caps_ops, s, 253527a11324SPeter Crosthwaite "capabilities", CAPA_SIZE); 25363e4f910cSGerd Hoffmann memory_region_init_io(&s->mem_opreg, &ehci_mmio_opreg_ops, s, 253727a11324SPeter Crosthwaite "operational", PORTSC_BEGIN); 25383e4f910cSGerd Hoffmann memory_region_init_io(&s->mem_ports, &ehci_mmio_port_ops, s, 25393e4f910cSGerd Hoffmann "ports", PORTSC_END - PORTSC_BEGIN); 25403e4f910cSGerd Hoffmann 254127a11324SPeter Crosthwaite memory_region_add_subregion(&s->mem, s->capsbase, &s->mem_caps); 254227a11324SPeter Crosthwaite memory_region_add_subregion(&s->mem, s->opregbase, &s->mem_opreg); 254327a11324SPeter Crosthwaite memory_region_add_subregion(&s->mem, s->opregbase + PORTSC_BEGIN, 254427a11324SPeter Crosthwaite &s->mem_ports); 25455010d4dcSPeter Crosthwaite } 25463e4f910cSGerd Hoffmann 2547f1ae32a1SGerd Hoffmann /* 2548f1ae32a1SGerd Hoffmann * vim: expandtab ts=4 2549f1ae32a1SGerd Hoffmann */ 2550