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" 31*12269616SStefan Weil #include "trace.h" 32f1ae32a1SGerd Hoffmann 33f1ae32a1SGerd Hoffmann /* Capability Registers Base Address - section 2.2 */ 3427a11324SPeter Crosthwaite #define CAPLENGTH 0x0000 /* 1-byte, 0x0001 reserved */ 3527a11324SPeter Crosthwaite #define HCIVERSION 0x0002 /* 2-bytes, i/f version # */ 3627a11324SPeter Crosthwaite #define HCSPARAMS 0x0004 /* 4-bytes, structural params */ 3727a11324SPeter Crosthwaite #define HCCPARAMS 0x0008 /* 4-bytes, capability params */ 38f1ae32a1SGerd Hoffmann #define EECP HCCPARAMS + 1 3927a11324SPeter Crosthwaite #define HCSPPORTROUTE1 0x000c 4027a11324SPeter Crosthwaite #define HCSPPORTROUTE2 0x0010 41f1ae32a1SGerd Hoffmann 4227a11324SPeter Crosthwaite #define USBCMD 0x0000 43f1ae32a1SGerd Hoffmann #define USBCMD_RUNSTOP (1 << 0) // run / Stop 44f1ae32a1SGerd Hoffmann #define USBCMD_HCRESET (1 << 1) // HC Reset 45f1ae32a1SGerd Hoffmann #define USBCMD_FLS (3 << 2) // Frame List Size 46f1ae32a1SGerd Hoffmann #define USBCMD_FLS_SH 2 // Frame List Size Shift 47f1ae32a1SGerd Hoffmann #define USBCMD_PSE (1 << 4) // Periodic Schedule Enable 48f1ae32a1SGerd Hoffmann #define USBCMD_ASE (1 << 5) // Asynch Schedule Enable 49f1ae32a1SGerd Hoffmann #define USBCMD_IAAD (1 << 6) // Int Asynch Advance Doorbell 50f1ae32a1SGerd Hoffmann #define USBCMD_LHCR (1 << 7) // Light Host Controller Reset 51f1ae32a1SGerd Hoffmann #define USBCMD_ASPMC (3 << 8) // Async Sched Park Mode Count 52f1ae32a1SGerd Hoffmann #define USBCMD_ASPME (1 << 11) // Async Sched Park Mode Enable 53f1ae32a1SGerd Hoffmann #define USBCMD_ITC (0x7f << 16) // Int Threshold Control 54f1ae32a1SGerd Hoffmann #define USBCMD_ITC_SH 16 // Int Threshold Control Shift 55f1ae32a1SGerd Hoffmann 5627a11324SPeter Crosthwaite #define USBSTS 0x0004 57f1ae32a1SGerd Hoffmann #define USBSTS_RO_MASK 0x0000003f 58f1ae32a1SGerd Hoffmann #define USBSTS_INT (1 << 0) // USB Interrupt 59f1ae32a1SGerd Hoffmann #define USBSTS_ERRINT (1 << 1) // Error Interrupt 60f1ae32a1SGerd Hoffmann #define USBSTS_PCD (1 << 2) // Port Change Detect 61f1ae32a1SGerd Hoffmann #define USBSTS_FLR (1 << 3) // Frame List Rollover 62f1ae32a1SGerd Hoffmann #define USBSTS_HSE (1 << 4) // Host System Error 63f1ae32a1SGerd Hoffmann #define USBSTS_IAA (1 << 5) // Interrupt on Async Advance 64f1ae32a1SGerd Hoffmann #define USBSTS_HALT (1 << 12) // HC Halted 65f1ae32a1SGerd Hoffmann #define USBSTS_REC (1 << 13) // Reclamation 66f1ae32a1SGerd Hoffmann #define USBSTS_PSS (1 << 14) // Periodic Schedule Status 67f1ae32a1SGerd Hoffmann #define USBSTS_ASS (1 << 15) // Asynchronous Schedule Status 68f1ae32a1SGerd Hoffmann 69f1ae32a1SGerd Hoffmann /* 70f1ae32a1SGerd Hoffmann * Interrupt enable bits correspond to the interrupt active bits in USBSTS 71f1ae32a1SGerd Hoffmann * so no need to redefine here. 72f1ae32a1SGerd Hoffmann */ 7327a11324SPeter Crosthwaite #define USBINTR 0x0008 74f1ae32a1SGerd Hoffmann #define USBINTR_MASK 0x0000003f 75f1ae32a1SGerd Hoffmann 7627a11324SPeter Crosthwaite #define FRINDEX 0x000c 7727a11324SPeter Crosthwaite #define CTRLDSSEGMENT 0x0010 7827a11324SPeter Crosthwaite #define PERIODICLISTBASE 0x0014 7927a11324SPeter Crosthwaite #define ASYNCLISTADDR 0x0018 80f1ae32a1SGerd Hoffmann #define ASYNCLISTADDR_MASK 0xffffffe0 81f1ae32a1SGerd Hoffmann 8227a11324SPeter Crosthwaite #define CONFIGFLAG 0x0040 83f1ae32a1SGerd Hoffmann 84f1ae32a1SGerd Hoffmann /* 85f1ae32a1SGerd Hoffmann * Bits that are reserved or are read-only are masked out of values 86f1ae32a1SGerd Hoffmann * written to us by software 87f1ae32a1SGerd Hoffmann */ 88f1ae32a1SGerd Hoffmann #define PORTSC_RO_MASK 0x007001c0 89f1ae32a1SGerd Hoffmann #define PORTSC_RWC_MASK 0x0000002a 90f1ae32a1SGerd Hoffmann #define PORTSC_WKOC_E (1 << 22) // Wake on Over Current Enable 91f1ae32a1SGerd Hoffmann #define PORTSC_WKDS_E (1 << 21) // Wake on Disconnect Enable 92f1ae32a1SGerd Hoffmann #define PORTSC_WKCN_E (1 << 20) // Wake on Connect Enable 93f1ae32a1SGerd Hoffmann #define PORTSC_PTC (15 << 16) // Port Test Control 94f1ae32a1SGerd Hoffmann #define PORTSC_PTC_SH 16 // Port Test Control shift 95f1ae32a1SGerd Hoffmann #define PORTSC_PIC (3 << 14) // Port Indicator Control 96f1ae32a1SGerd Hoffmann #define PORTSC_PIC_SH 14 // Port Indicator Control Shift 97f1ae32a1SGerd Hoffmann #define PORTSC_POWNER (1 << 13) // Port Owner 98f1ae32a1SGerd Hoffmann #define PORTSC_PPOWER (1 << 12) // Port Power 99f1ae32a1SGerd Hoffmann #define PORTSC_LINESTAT (3 << 10) // Port Line Status 100f1ae32a1SGerd Hoffmann #define PORTSC_LINESTAT_SH 10 // Port Line Status Shift 101f1ae32a1SGerd Hoffmann #define PORTSC_PRESET (1 << 8) // Port Reset 102f1ae32a1SGerd Hoffmann #define PORTSC_SUSPEND (1 << 7) // Port Suspend 103f1ae32a1SGerd Hoffmann #define PORTSC_FPRES (1 << 6) // Force Port Resume 104f1ae32a1SGerd Hoffmann #define PORTSC_OCC (1 << 5) // Over Current Change 105f1ae32a1SGerd Hoffmann #define PORTSC_OCA (1 << 4) // Over Current Active 106f1ae32a1SGerd Hoffmann #define PORTSC_PEDC (1 << 3) // Port Enable/Disable Change 107f1ae32a1SGerd Hoffmann #define PORTSC_PED (1 << 2) // Port Enable/Disable 108f1ae32a1SGerd Hoffmann #define PORTSC_CSC (1 << 1) // Connect Status Change 109f1ae32a1SGerd Hoffmann #define PORTSC_CONNECT (1 << 0) // Current Connect Status 110f1ae32a1SGerd Hoffmann 111f1ae32a1SGerd Hoffmann #define FRAME_TIMER_FREQ 1000 112f1ae32a1SGerd Hoffmann #define FRAME_TIMER_NS (1000000000 / FRAME_TIMER_FREQ) 1139359a58bSHans de Goede #define UFRAME_TIMER_NS (FRAME_TIMER_NS / 8) 114f1ae32a1SGerd Hoffmann 115f1ae32a1SGerd Hoffmann #define NB_MAXINTRATE 8 // Max rate at which controller issues ints 116f1ae32a1SGerd Hoffmann #define BUFF_SIZE 5*4096 // Max bytes to transfer per transaction 117f1ae32a1SGerd Hoffmann #define MAX_QH 100 // Max allowable queue heads in a chain 1189359a58bSHans de Goede #define MIN_UFR_PER_TICK 24 /* Min frames to process when catching up */ 1199359a58bSHans de Goede #define PERIODIC_ACTIVE 512 /* Micro-frames */ 120f1ae32a1SGerd Hoffmann 121f1ae32a1SGerd Hoffmann /* Internal periodic / asynchronous schedule state machine states 122f1ae32a1SGerd Hoffmann */ 123f1ae32a1SGerd Hoffmann typedef enum { 124f1ae32a1SGerd Hoffmann EST_INACTIVE = 1000, 125f1ae32a1SGerd Hoffmann EST_ACTIVE, 126f1ae32a1SGerd Hoffmann EST_EXECUTING, 127f1ae32a1SGerd Hoffmann EST_SLEEPING, 128f1ae32a1SGerd Hoffmann /* The following states are internal to the state machine function 129f1ae32a1SGerd Hoffmann */ 130f1ae32a1SGerd Hoffmann EST_WAITLISTHEAD, 131f1ae32a1SGerd Hoffmann EST_FETCHENTRY, 132f1ae32a1SGerd Hoffmann EST_FETCHQH, 133f1ae32a1SGerd Hoffmann EST_FETCHITD, 134f1ae32a1SGerd Hoffmann EST_FETCHSITD, 135f1ae32a1SGerd Hoffmann EST_ADVANCEQUEUE, 136f1ae32a1SGerd Hoffmann EST_FETCHQTD, 137f1ae32a1SGerd Hoffmann EST_EXECUTE, 138f1ae32a1SGerd Hoffmann EST_WRITEBACK, 139f1ae32a1SGerd Hoffmann EST_HORIZONTALQH 140f1ae32a1SGerd Hoffmann } EHCI_STATES; 141f1ae32a1SGerd Hoffmann 142f1ae32a1SGerd Hoffmann /* macros for accessing fields within next link pointer entry */ 143f1ae32a1SGerd Hoffmann #define NLPTR_GET(x) ((x) & 0xffffffe0) 144f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_GET(x) (((x) >> 1) & 3) 145f1ae32a1SGerd Hoffmann #define NLPTR_TBIT(x) ((x) & 1) // 1=invalid, 0=valid 146f1ae32a1SGerd Hoffmann 147f1ae32a1SGerd Hoffmann /* link pointer types */ 148f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_ITD 0 // isoc xfer descriptor 149f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_QH 1 // queue head 150f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_STITD 2 // split xaction, isoc xfer descriptor 151f1ae32a1SGerd Hoffmann #define NLPTR_TYPE_FSTN 3 // frame span traversal node 152f1ae32a1SGerd Hoffmann 153f1ae32a1SGerd Hoffmann #define SET_LAST_RUN_CLOCK(s) \ 154bc72ad67SAlex Bligh (s)->last_run_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 155f1ae32a1SGerd Hoffmann 156f1ae32a1SGerd Hoffmann /* nifty macros from Arnon's EHCI version */ 157f1ae32a1SGerd Hoffmann #define get_field(data, field) \ 158f1ae32a1SGerd Hoffmann (((data) & field##_MASK) >> field##_SH) 159f1ae32a1SGerd Hoffmann 160f1ae32a1SGerd Hoffmann #define set_field(data, newval, field) do { \ 161f1ae32a1SGerd Hoffmann uint32_t val = *data; \ 162f1ae32a1SGerd Hoffmann val &= ~ field##_MASK; \ 163f1ae32a1SGerd Hoffmann val |= ((newval) << field##_SH) & field##_MASK; \ 164f1ae32a1SGerd Hoffmann *data = val; \ 165f1ae32a1SGerd Hoffmann } while(0) 166f1ae32a1SGerd Hoffmann 167f1ae32a1SGerd Hoffmann static const char *ehci_state_names[] = { 168f1ae32a1SGerd Hoffmann [EST_INACTIVE] = "INACTIVE", 169f1ae32a1SGerd Hoffmann [EST_ACTIVE] = "ACTIVE", 170f1ae32a1SGerd Hoffmann [EST_EXECUTING] = "EXECUTING", 171f1ae32a1SGerd Hoffmann [EST_SLEEPING] = "SLEEPING", 172f1ae32a1SGerd Hoffmann [EST_WAITLISTHEAD] = "WAITLISTHEAD", 173f1ae32a1SGerd Hoffmann [EST_FETCHENTRY] = "FETCH ENTRY", 174f1ae32a1SGerd Hoffmann [EST_FETCHQH] = "FETCH QH", 175f1ae32a1SGerd Hoffmann [EST_FETCHITD] = "FETCH ITD", 176f1ae32a1SGerd Hoffmann [EST_ADVANCEQUEUE] = "ADVANCEQUEUE", 177f1ae32a1SGerd Hoffmann [EST_FETCHQTD] = "FETCH QTD", 178f1ae32a1SGerd Hoffmann [EST_EXECUTE] = "EXECUTE", 179f1ae32a1SGerd Hoffmann [EST_WRITEBACK] = "WRITEBACK", 180f1ae32a1SGerd Hoffmann [EST_HORIZONTALQH] = "HORIZONTALQH", 181f1ae32a1SGerd Hoffmann }; 182f1ae32a1SGerd Hoffmann 183f1ae32a1SGerd Hoffmann static const char *ehci_mmio_names[] = { 184f1ae32a1SGerd Hoffmann [USBCMD] = "USBCMD", 185f1ae32a1SGerd Hoffmann [USBSTS] = "USBSTS", 186f1ae32a1SGerd Hoffmann [USBINTR] = "USBINTR", 187f1ae32a1SGerd Hoffmann [FRINDEX] = "FRINDEX", 188f1ae32a1SGerd Hoffmann [PERIODICLISTBASE] = "P-LIST BASE", 189f1ae32a1SGerd Hoffmann [ASYNCLISTADDR] = "A-LIST ADDR", 190f1ae32a1SGerd Hoffmann [CONFIGFLAG] = "CONFIGFLAG", 191f1ae32a1SGerd Hoffmann }; 192f1ae32a1SGerd Hoffmann 1934b63a0dfSHans de Goede static int ehci_state_executing(EHCIQueue *q); 1944b63a0dfSHans de Goede static int ehci_state_writeback(EHCIQueue *q); 195ff80ce59SHans de Goede static int ehci_state_advqueue(EHCIQueue *q); 196b4ea8664SHans de Goede static int ehci_fill_queue(EHCIPacket *p); 1972b3de6adSHans de Goede static void ehci_free_packet(EHCIPacket *p); 1984b63a0dfSHans de Goede 199f1ae32a1SGerd Hoffmann static const char *nr2str(const char **n, size_t len, uint32_t nr) 200f1ae32a1SGerd Hoffmann { 201f1ae32a1SGerd Hoffmann if (nr < len && n[nr] != NULL) { 202f1ae32a1SGerd Hoffmann return n[nr]; 203f1ae32a1SGerd Hoffmann } else { 204f1ae32a1SGerd Hoffmann return "unknown"; 205f1ae32a1SGerd Hoffmann } 206f1ae32a1SGerd Hoffmann } 207f1ae32a1SGerd Hoffmann 208f1ae32a1SGerd Hoffmann static const char *state2str(uint32_t state) 209f1ae32a1SGerd Hoffmann { 210f1ae32a1SGerd Hoffmann return nr2str(ehci_state_names, ARRAY_SIZE(ehci_state_names), state); 211f1ae32a1SGerd Hoffmann } 212f1ae32a1SGerd Hoffmann 213a8170e5eSAvi Kivity static const char *addr2str(hwaddr addr) 214f1ae32a1SGerd Hoffmann { 21527a11324SPeter Crosthwaite return nr2str(ehci_mmio_names, ARRAY_SIZE(ehci_mmio_names), addr); 216f1ae32a1SGerd Hoffmann } 217f1ae32a1SGerd Hoffmann 218f1ae32a1SGerd Hoffmann static void ehci_trace_usbsts(uint32_t mask, int state) 219f1ae32a1SGerd Hoffmann { 220f1ae32a1SGerd Hoffmann /* interrupts */ 221f1ae32a1SGerd Hoffmann if (mask & USBSTS_INT) { 222f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("INT", state); 223f1ae32a1SGerd Hoffmann } 224f1ae32a1SGerd Hoffmann if (mask & USBSTS_ERRINT) { 225f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("ERRINT", state); 226f1ae32a1SGerd Hoffmann } 227f1ae32a1SGerd Hoffmann if (mask & USBSTS_PCD) { 228f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("PCD", state); 229f1ae32a1SGerd Hoffmann } 230f1ae32a1SGerd Hoffmann if (mask & USBSTS_FLR) { 231f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("FLR", state); 232f1ae32a1SGerd Hoffmann } 233f1ae32a1SGerd Hoffmann if (mask & USBSTS_HSE) { 234f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("HSE", state); 235f1ae32a1SGerd Hoffmann } 236f1ae32a1SGerd Hoffmann if (mask & USBSTS_IAA) { 237f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("IAA", state); 238f1ae32a1SGerd Hoffmann } 239f1ae32a1SGerd Hoffmann 240f1ae32a1SGerd Hoffmann /* status */ 241f1ae32a1SGerd Hoffmann if (mask & USBSTS_HALT) { 242f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("HALT", state); 243f1ae32a1SGerd Hoffmann } 244f1ae32a1SGerd Hoffmann if (mask & USBSTS_REC) { 245f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("REC", state); 246f1ae32a1SGerd Hoffmann } 247f1ae32a1SGerd Hoffmann if (mask & USBSTS_PSS) { 248f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("PSS", state); 249f1ae32a1SGerd Hoffmann } 250f1ae32a1SGerd Hoffmann if (mask & USBSTS_ASS) { 251f1ae32a1SGerd Hoffmann trace_usb_ehci_usbsts("ASS", state); 252f1ae32a1SGerd Hoffmann } 253f1ae32a1SGerd Hoffmann } 254f1ae32a1SGerd Hoffmann 255f1ae32a1SGerd Hoffmann static inline void ehci_set_usbsts(EHCIState *s, int mask) 256f1ae32a1SGerd Hoffmann { 257f1ae32a1SGerd Hoffmann if ((s->usbsts & mask) == mask) { 258f1ae32a1SGerd Hoffmann return; 259f1ae32a1SGerd Hoffmann } 260f1ae32a1SGerd Hoffmann ehci_trace_usbsts(mask, 1); 261f1ae32a1SGerd Hoffmann s->usbsts |= mask; 262f1ae32a1SGerd Hoffmann } 263f1ae32a1SGerd Hoffmann 264f1ae32a1SGerd Hoffmann static inline void ehci_clear_usbsts(EHCIState *s, int mask) 265f1ae32a1SGerd Hoffmann { 266f1ae32a1SGerd Hoffmann if ((s->usbsts & mask) == 0) { 267f1ae32a1SGerd Hoffmann return; 268f1ae32a1SGerd Hoffmann } 269f1ae32a1SGerd Hoffmann ehci_trace_usbsts(mask, 0); 270f1ae32a1SGerd Hoffmann s->usbsts &= ~mask; 271f1ae32a1SGerd Hoffmann } 272f1ae32a1SGerd Hoffmann 2737efc17afSGerd Hoffmann /* update irq line */ 2747efc17afSGerd Hoffmann static inline void ehci_update_irq(EHCIState *s) 275f1ae32a1SGerd Hoffmann { 276f1ae32a1SGerd Hoffmann int level = 0; 277f1ae32a1SGerd Hoffmann 278f1ae32a1SGerd Hoffmann if ((s->usbsts & USBINTR_MASK) & s->usbintr) { 279f1ae32a1SGerd Hoffmann level = 1; 280f1ae32a1SGerd Hoffmann } 281f1ae32a1SGerd Hoffmann 2827efc17afSGerd Hoffmann trace_usb_ehci_irq(level, s->frindex, s->usbsts, s->usbintr); 283f1ae32a1SGerd Hoffmann qemu_set_irq(s->irq, level); 284f1ae32a1SGerd Hoffmann } 285f1ae32a1SGerd Hoffmann 2867efc17afSGerd Hoffmann /* flag interrupt condition */ 2877efc17afSGerd Hoffmann static inline void ehci_raise_irq(EHCIState *s, int intr) 288f1ae32a1SGerd Hoffmann { 2896d3b6d3dSGerd Hoffmann if (intr & (USBSTS_PCD | USBSTS_FLR | USBSTS_HSE)) { 2906d3b6d3dSGerd Hoffmann s->usbsts |= intr; 2916d3b6d3dSGerd Hoffmann ehci_update_irq(s); 2926d3b6d3dSGerd Hoffmann } else { 293f1ae32a1SGerd Hoffmann s->usbsts_pending |= intr; 294f1ae32a1SGerd Hoffmann } 2956d3b6d3dSGerd Hoffmann } 296f1ae32a1SGerd Hoffmann 2977efc17afSGerd Hoffmann /* 2987efc17afSGerd Hoffmann * Commit pending interrupts (added via ehci_raise_irq), 2997efc17afSGerd Hoffmann * at the rate allowed by "Interrupt Threshold Control". 3007efc17afSGerd Hoffmann */ 3017efc17afSGerd Hoffmann static inline void ehci_commit_irq(EHCIState *s) 302f1ae32a1SGerd Hoffmann { 3037efc17afSGerd Hoffmann uint32_t itc; 3047efc17afSGerd Hoffmann 305f1ae32a1SGerd Hoffmann if (!s->usbsts_pending) { 306f1ae32a1SGerd Hoffmann return; 307f1ae32a1SGerd Hoffmann } 3087efc17afSGerd Hoffmann if (s->usbsts_frindex > s->frindex) { 3097efc17afSGerd Hoffmann return; 3107efc17afSGerd Hoffmann } 3117efc17afSGerd Hoffmann 3127efc17afSGerd Hoffmann itc = (s->usbcmd >> 16) & 0xff; 3137efc17afSGerd Hoffmann s->usbsts |= s->usbsts_pending; 314f1ae32a1SGerd Hoffmann s->usbsts_pending = 0; 3157efc17afSGerd Hoffmann s->usbsts_frindex = s->frindex + itc; 3167efc17afSGerd Hoffmann ehci_update_irq(s); 317f1ae32a1SGerd Hoffmann } 318f1ae32a1SGerd Hoffmann 319daf25307SGerd Hoffmann static void ehci_update_halt(EHCIState *s) 320daf25307SGerd Hoffmann { 321daf25307SGerd Hoffmann if (s->usbcmd & USBCMD_RUNSTOP) { 322daf25307SGerd Hoffmann ehci_clear_usbsts(s, USBSTS_HALT); 323daf25307SGerd Hoffmann } else { 324daf25307SGerd Hoffmann if (s->astate == EST_INACTIVE && s->pstate == EST_INACTIVE) { 325daf25307SGerd Hoffmann ehci_set_usbsts(s, USBSTS_HALT); 326daf25307SGerd Hoffmann } 327daf25307SGerd Hoffmann } 328daf25307SGerd Hoffmann } 329daf25307SGerd Hoffmann 330f1ae32a1SGerd Hoffmann static void ehci_set_state(EHCIState *s, int async, int state) 331f1ae32a1SGerd Hoffmann { 332f1ae32a1SGerd Hoffmann if (async) { 333f1ae32a1SGerd Hoffmann trace_usb_ehci_state("async", state2str(state)); 334f1ae32a1SGerd Hoffmann s->astate = state; 335b53f685dSGerd Hoffmann if (s->astate == EST_INACTIVE) { 336b53f685dSGerd Hoffmann ehci_clear_usbsts(s, USBSTS_ASS); 337daf25307SGerd Hoffmann ehci_update_halt(s); 338b53f685dSGerd Hoffmann } else { 339b53f685dSGerd Hoffmann ehci_set_usbsts(s, USBSTS_ASS); 340b53f685dSGerd Hoffmann } 341f1ae32a1SGerd Hoffmann } else { 342f1ae32a1SGerd Hoffmann trace_usb_ehci_state("periodic", state2str(state)); 343f1ae32a1SGerd Hoffmann s->pstate = state; 344b53f685dSGerd Hoffmann if (s->pstate == EST_INACTIVE) { 345b53f685dSGerd Hoffmann ehci_clear_usbsts(s, USBSTS_PSS); 346daf25307SGerd Hoffmann ehci_update_halt(s); 347b53f685dSGerd Hoffmann } else { 348b53f685dSGerd Hoffmann ehci_set_usbsts(s, USBSTS_PSS); 349b53f685dSGerd Hoffmann } 350f1ae32a1SGerd Hoffmann } 351f1ae32a1SGerd Hoffmann } 352f1ae32a1SGerd Hoffmann 353f1ae32a1SGerd Hoffmann static int ehci_get_state(EHCIState *s, int async) 354f1ae32a1SGerd Hoffmann { 355f1ae32a1SGerd Hoffmann return async ? s->astate : s->pstate; 356f1ae32a1SGerd Hoffmann } 357f1ae32a1SGerd Hoffmann 358f1ae32a1SGerd Hoffmann static void ehci_set_fetch_addr(EHCIState *s, int async, uint32_t addr) 359f1ae32a1SGerd Hoffmann { 360f1ae32a1SGerd Hoffmann if (async) { 361f1ae32a1SGerd Hoffmann s->a_fetch_addr = addr; 362f1ae32a1SGerd Hoffmann } else { 363f1ae32a1SGerd Hoffmann s->p_fetch_addr = addr; 364f1ae32a1SGerd Hoffmann } 365f1ae32a1SGerd Hoffmann } 366f1ae32a1SGerd Hoffmann 367f1ae32a1SGerd Hoffmann static int ehci_get_fetch_addr(EHCIState *s, int async) 368f1ae32a1SGerd Hoffmann { 369f1ae32a1SGerd Hoffmann return async ? s->a_fetch_addr : s->p_fetch_addr; 370f1ae32a1SGerd Hoffmann } 371f1ae32a1SGerd Hoffmann 372a8170e5eSAvi Kivity static void ehci_trace_qh(EHCIQueue *q, hwaddr addr, EHCIqh *qh) 373f1ae32a1SGerd Hoffmann { 374f1ae32a1SGerd Hoffmann /* need three here due to argument count limits */ 375f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_ptrs(q, addr, qh->next, 376f1ae32a1SGerd Hoffmann qh->current_qtd, qh->next_qtd, qh->altnext_qtd); 377f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_fields(addr, 378f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_RL), 379f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_MPLEN), 380f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_EPS), 381f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_EP), 382f1ae32a1SGerd Hoffmann get_field(qh->epchar, QH_EPCHAR_DEVADDR)); 383f1ae32a1SGerd Hoffmann trace_usb_ehci_qh_bits(addr, 384f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_C), 385f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_H), 386f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_DTC), 387f1ae32a1SGerd Hoffmann (bool)(qh->epchar & QH_EPCHAR_I)); 388f1ae32a1SGerd Hoffmann } 389f1ae32a1SGerd Hoffmann 390a8170e5eSAvi Kivity static void ehci_trace_qtd(EHCIQueue *q, hwaddr addr, EHCIqtd *qtd) 391f1ae32a1SGerd Hoffmann { 392f1ae32a1SGerd Hoffmann /* need three here due to argument count limits */ 393f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_ptrs(q, addr, qtd->next, qtd->altnext); 394f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_fields(addr, 395f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_TBYTES), 396f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_CPAGE), 397f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_CERR), 398f1ae32a1SGerd Hoffmann get_field(qtd->token, QTD_TOKEN_PID)); 399f1ae32a1SGerd Hoffmann trace_usb_ehci_qtd_bits(addr, 400f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_IOC), 401f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_ACTIVE), 402f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_HALT), 403f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_BABBLE), 404f1ae32a1SGerd Hoffmann (bool)(qtd->token & QTD_TOKEN_XACTERR)); 405f1ae32a1SGerd Hoffmann } 406f1ae32a1SGerd Hoffmann 407a8170e5eSAvi Kivity static void ehci_trace_itd(EHCIState *s, hwaddr addr, EHCIitd *itd) 408f1ae32a1SGerd Hoffmann { 409f1ae32a1SGerd Hoffmann trace_usb_ehci_itd(addr, itd->next, 410f1ae32a1SGerd Hoffmann get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT), 411f1ae32a1SGerd Hoffmann get_field(itd->bufptr[2], ITD_BUFPTR_MULT), 412f1ae32a1SGerd Hoffmann get_field(itd->bufptr[0], ITD_BUFPTR_EP), 413f1ae32a1SGerd Hoffmann get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR)); 414f1ae32a1SGerd Hoffmann } 415f1ae32a1SGerd Hoffmann 416a8170e5eSAvi Kivity static void ehci_trace_sitd(EHCIState *s, hwaddr addr, 417f1ae32a1SGerd Hoffmann EHCIsitd *sitd) 418f1ae32a1SGerd Hoffmann { 419f1ae32a1SGerd Hoffmann trace_usb_ehci_sitd(addr, sitd->next, 420f1ae32a1SGerd Hoffmann (bool)(sitd->results & SITD_RESULTS_ACTIVE)); 421f1ae32a1SGerd Hoffmann } 422f1ae32a1SGerd Hoffmann 4235c514681SGerd Hoffmann static void ehci_trace_guest_bug(EHCIState *s, const char *message) 4245c514681SGerd Hoffmann { 4255c514681SGerd Hoffmann trace_usb_ehci_guest_bug(message); 4265c514681SGerd Hoffmann fprintf(stderr, "ehci warning: %s\n", message); 4275c514681SGerd Hoffmann } 4285c514681SGerd Hoffmann 429ec807d12SGerd Hoffmann static inline bool ehci_enabled(EHCIState *s) 430ec807d12SGerd Hoffmann { 431ec807d12SGerd Hoffmann return s->usbcmd & USBCMD_RUNSTOP; 432ec807d12SGerd Hoffmann } 433ec807d12SGerd Hoffmann 434ec807d12SGerd Hoffmann static inline bool ehci_async_enabled(EHCIState *s) 435ec807d12SGerd Hoffmann { 436ec807d12SGerd Hoffmann return ehci_enabled(s) && (s->usbcmd & USBCMD_ASE); 437ec807d12SGerd Hoffmann } 438ec807d12SGerd Hoffmann 439ec807d12SGerd Hoffmann static inline bool ehci_periodic_enabled(EHCIState *s) 440ec807d12SGerd Hoffmann { 441ec807d12SGerd Hoffmann return ehci_enabled(s) && (s->usbcmd & USBCMD_PSE); 442ec807d12SGerd Hoffmann } 443ec807d12SGerd Hoffmann 444190d8492SHans de Goede /* Get an array of dwords from main memory */ 445190d8492SHans de Goede static inline int get_dwords(EHCIState *ehci, uint32_t addr, 446190d8492SHans de Goede uint32_t *buf, int num) 447190d8492SHans de Goede { 448190d8492SHans de Goede int i; 449190d8492SHans de Goede 450df32fd1cSPaolo Bonzini if (!ehci->as) { 451190d8492SHans de Goede ehci_raise_irq(ehci, USBSTS_HSE); 452190d8492SHans de Goede ehci->usbcmd &= ~USBCMD_RUNSTOP; 453190d8492SHans de Goede trace_usb_ehci_dma_error(); 454190d8492SHans de Goede return -1; 455190d8492SHans de Goede } 456190d8492SHans de Goede 457190d8492SHans de Goede for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 458df32fd1cSPaolo Bonzini dma_memory_read(ehci->as, addr, buf, sizeof(*buf)); 459190d8492SHans de Goede *buf = le32_to_cpu(*buf); 460190d8492SHans de Goede } 461190d8492SHans de Goede 462190d8492SHans de Goede return num; 463190d8492SHans de Goede } 464190d8492SHans de Goede 465190d8492SHans de Goede /* Put an array of dwords in to main memory */ 466190d8492SHans de Goede static inline int put_dwords(EHCIState *ehci, uint32_t addr, 467190d8492SHans de Goede uint32_t *buf, int num) 468190d8492SHans de Goede { 469190d8492SHans de Goede int i; 470190d8492SHans de Goede 471df32fd1cSPaolo Bonzini if (!ehci->as) { 472190d8492SHans de Goede ehci_raise_irq(ehci, USBSTS_HSE); 473190d8492SHans de Goede ehci->usbcmd &= ~USBCMD_RUNSTOP; 474190d8492SHans de Goede trace_usb_ehci_dma_error(); 475190d8492SHans de Goede return -1; 476190d8492SHans de Goede } 477190d8492SHans de Goede 478190d8492SHans de Goede for (i = 0; i < num; i++, buf++, addr += sizeof(*buf)) { 479190d8492SHans de Goede uint32_t tmp = cpu_to_le32(*buf); 480df32fd1cSPaolo Bonzini dma_memory_write(ehci->as, addr, &tmp, sizeof(tmp)); 481190d8492SHans de Goede } 482190d8492SHans de Goede 483190d8492SHans de Goede return num; 484190d8492SHans de Goede } 485190d8492SHans de Goede 48651e0c5d0SHans de Goede static int ehci_get_pid(EHCIqtd *qtd) 48751e0c5d0SHans de Goede { 48851e0c5d0SHans de Goede switch (get_field(qtd->token, QTD_TOKEN_PID)) { 48951e0c5d0SHans de Goede case 0: 49051e0c5d0SHans de Goede return USB_TOKEN_OUT; 49151e0c5d0SHans de Goede case 1: 49251e0c5d0SHans de Goede return USB_TOKEN_IN; 49351e0c5d0SHans de Goede case 2: 49451e0c5d0SHans de Goede return USB_TOKEN_SETUP; 49551e0c5d0SHans de Goede default: 49651e0c5d0SHans de Goede fprintf(stderr, "bad token\n"); 49751e0c5d0SHans de Goede return 0; 49851e0c5d0SHans de Goede } 49951e0c5d0SHans de Goede } 50051e0c5d0SHans de Goede 501c6432634SHans de Goede static bool ehci_verify_qh(EHCIQueue *q, EHCIqh *qh) 502c6432634SHans de Goede { 503c6432634SHans de Goede uint32_t devaddr = get_field(qh->epchar, QH_EPCHAR_DEVADDR); 504c6432634SHans de Goede uint32_t endp = get_field(qh->epchar, QH_EPCHAR_EP); 505c6432634SHans de Goede if ((devaddr != get_field(q->qh.epchar, QH_EPCHAR_DEVADDR)) || 506c6432634SHans de Goede (endp != get_field(q->qh.epchar, QH_EPCHAR_EP)) || 507c6432634SHans de Goede (qh->current_qtd != q->qh.current_qtd) || 508c6432634SHans de Goede (q->async && qh->next_qtd != q->qh.next_qtd) || 509c6432634SHans de Goede (memcmp(&qh->altnext_qtd, &q->qh.altnext_qtd, 510c6432634SHans de Goede 7 * sizeof(uint32_t)) != 0) || 511c6432634SHans de Goede (q->dev != NULL && q->dev->addr != devaddr)) { 512c6432634SHans de Goede return false; 513c6432634SHans de Goede } else { 514c6432634SHans de Goede return true; 515c6432634SHans de Goede } 516c6432634SHans de Goede } 517c6432634SHans de Goede 518c6432634SHans de Goede static bool ehci_verify_qtd(EHCIPacket *p, EHCIqtd *qtd) 519c6432634SHans de Goede { 520c6432634SHans de Goede if (p->qtdaddr != p->queue->qtdaddr || 521c6432634SHans de Goede (p->queue->async && !NLPTR_TBIT(p->qtd.next) && 522c6432634SHans de Goede (p->qtd.next != qtd->next)) || 523c6432634SHans de Goede (!NLPTR_TBIT(p->qtd.altnext) && (p->qtd.altnext != qtd->altnext)) || 524d066c57bSHans de Goede p->qtd.token != qtd->token || 525c6432634SHans de Goede p->qtd.bufptr[0] != qtd->bufptr[0]) { 526c6432634SHans de Goede return false; 527c6432634SHans de Goede } else { 528c6432634SHans de Goede return true; 529c6432634SHans de Goede } 530c6432634SHans de Goede } 531c6432634SHans de Goede 532bbbc39ccSHans de Goede static bool ehci_verify_pid(EHCIQueue *q, EHCIqtd *qtd) 533bbbc39ccSHans de Goede { 534bbbc39ccSHans de Goede int ep = get_field(q->qh.epchar, QH_EPCHAR_EP); 535bbbc39ccSHans de Goede int pid = ehci_get_pid(qtd); 536bbbc39ccSHans de Goede 537bbbc39ccSHans de Goede /* Note the pid changing is normal for ep 0 (the control ep) */ 538bbbc39ccSHans de Goede if (q->last_pid && ep != 0 && pid != q->last_pid) { 539bbbc39ccSHans de Goede return false; 540bbbc39ccSHans de Goede } else { 541bbbc39ccSHans de Goede return true; 542bbbc39ccSHans de Goede } 543bbbc39ccSHans de Goede } 544bbbc39ccSHans de Goede 545f881c8d3SHans de Goede /* Finish executing and writeback a packet outside of the regular 546f881c8d3SHans de Goede fetchqh -> fetchqtd -> execute -> writeback cycle */ 547f881c8d3SHans de Goede static void ehci_writeback_async_complete_packet(EHCIPacket *p) 548f881c8d3SHans de Goede { 549f881c8d3SHans de Goede EHCIQueue *q = p->queue; 5502b3de6adSHans de Goede EHCIqtd qtd; 5512b3de6adSHans de Goede EHCIqh qh; 552f881c8d3SHans de Goede int state; 553f881c8d3SHans de Goede 5542b3de6adSHans de Goede /* Verify the qh + qtd, like we do when going through fetchqh & fetchqtd */ 5552b3de6adSHans de Goede get_dwords(q->ehci, NLPTR_GET(q->qhaddr), 5562b3de6adSHans de Goede (uint32_t *) &qh, sizeof(EHCIqh) >> 2); 5572b3de6adSHans de Goede get_dwords(q->ehci, NLPTR_GET(q->qtdaddr), 5582b3de6adSHans de Goede (uint32_t *) &qtd, sizeof(EHCIqtd) >> 2); 5592b3de6adSHans de Goede if (!ehci_verify_qh(q, &qh) || !ehci_verify_qtd(p, &qtd)) { 5602b3de6adSHans de Goede p->async = EHCI_ASYNC_INITIALIZED; 5612b3de6adSHans de Goede ehci_free_packet(p); 5622b3de6adSHans de Goede return; 5632b3de6adSHans de Goede } 5642b3de6adSHans de Goede 565f881c8d3SHans de Goede state = ehci_get_state(q->ehci, q->async); 566f881c8d3SHans de Goede ehci_state_executing(q); 567f881c8d3SHans de Goede ehci_state_writeback(q); /* Frees the packet! */ 568f881c8d3SHans de Goede if (!(q->qh.token & QTD_TOKEN_HALT)) { 569f881c8d3SHans de Goede ehci_state_advqueue(q); 570f881c8d3SHans de Goede } 571f881c8d3SHans de Goede ehci_set_state(q->ehci, q->async, state); 572f881c8d3SHans de Goede } 573f881c8d3SHans de Goede 574eb36a88eSGerd Hoffmann /* packet management */ 575eb36a88eSGerd Hoffmann 576eb36a88eSGerd Hoffmann static EHCIPacket *ehci_alloc_packet(EHCIQueue *q) 577eb36a88eSGerd Hoffmann { 578eb36a88eSGerd Hoffmann EHCIPacket *p; 579eb36a88eSGerd Hoffmann 580eb36a88eSGerd Hoffmann p = g_new0(EHCIPacket, 1); 581eb36a88eSGerd Hoffmann p->queue = q; 582eb36a88eSGerd Hoffmann usb_packet_init(&p->packet); 583eb36a88eSGerd Hoffmann QTAILQ_INSERT_TAIL(&q->packets, p, next); 584eb36a88eSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "alloc"); 585eb36a88eSGerd Hoffmann return p; 586eb36a88eSGerd Hoffmann } 587eb36a88eSGerd Hoffmann 588eb36a88eSGerd Hoffmann static void ehci_free_packet(EHCIPacket *p) 589eb36a88eSGerd Hoffmann { 590e449f26bSHans de Goede if (p->async == EHCI_ASYNC_FINISHED && 591e449f26bSHans de Goede !(p->queue->qh.token & QTD_TOKEN_HALT)) { 592f881c8d3SHans de Goede ehci_writeback_async_complete_packet(p); 5934b63a0dfSHans de Goede return; 5944b63a0dfSHans de Goede } 595616789cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "free"); 596616789cdSGerd Hoffmann if (p->async == EHCI_ASYNC_INFLIGHT) { 597616789cdSGerd Hoffmann usb_cancel_packet(&p->packet); 598e449f26bSHans de Goede } 599e449f26bSHans de Goede if (p->async == EHCI_ASYNC_FINISHED && 600e449f26bSHans de Goede p->packet.status == USB_RET_SUCCESS) { 601e449f26bSHans de Goede fprintf(stderr, 602e449f26bSHans de Goede "EHCI: Dropping completed packet from halted %s ep %02X\n", 603e449f26bSHans de Goede (p->pid == USB_TOKEN_IN) ? "in" : "out", 604e449f26bSHans de Goede get_field(p->queue->qh.epchar, QH_EPCHAR_EP)); 605e449f26bSHans de Goede } 606e449f26bSHans de Goede if (p->async != EHCI_ASYNC_NONE) { 607616789cdSGerd Hoffmann usb_packet_unmap(&p->packet, &p->sgl); 608616789cdSGerd Hoffmann qemu_sglist_destroy(&p->sgl); 609616789cdSGerd Hoffmann } 610eb36a88eSGerd Hoffmann QTAILQ_REMOVE(&p->queue->packets, p, next); 611eb36a88eSGerd Hoffmann usb_packet_cleanup(&p->packet); 612eb36a88eSGerd Hoffmann g_free(p); 613eb36a88eSGerd Hoffmann } 614eb36a88eSGerd Hoffmann 615f1ae32a1SGerd Hoffmann /* queue management */ 616f1ae32a1SGerd Hoffmann 6178f6d5e26SGerd Hoffmann static EHCIQueue *ehci_alloc_queue(EHCIState *ehci, uint32_t addr, int async) 618f1ae32a1SGerd Hoffmann { 619f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 620f1ae32a1SGerd Hoffmann EHCIQueue *q; 621f1ae32a1SGerd Hoffmann 622f1ae32a1SGerd Hoffmann q = g_malloc0(sizeof(*q)); 623f1ae32a1SGerd Hoffmann q->ehci = ehci; 6248f6d5e26SGerd Hoffmann q->qhaddr = addr; 625ae0138a8SGerd Hoffmann q->async = async; 626eb36a88eSGerd Hoffmann QTAILQ_INIT(&q->packets); 627f1ae32a1SGerd Hoffmann QTAILQ_INSERT_HEAD(head, q, next); 628f1ae32a1SGerd Hoffmann trace_usb_ehci_queue_action(q, "alloc"); 629f1ae32a1SGerd Hoffmann return q; 630f1ae32a1SGerd Hoffmann } 631f1ae32a1SGerd Hoffmann 632f79738b0SHans de Goede static void ehci_queue_stopped(EHCIQueue *q) 633f79738b0SHans de Goede { 634f79738b0SHans de Goede int endp = get_field(q->qh.epchar, QH_EPCHAR_EP); 635f79738b0SHans de Goede 636f79738b0SHans de Goede if (!q->last_pid || !q->dev) { 637f79738b0SHans de Goede return; 638f79738b0SHans de Goede } 639f79738b0SHans de Goede 640f79738b0SHans de Goede usb_device_ep_stopped(q->dev, usb_ep_get(q->dev, q->last_pid, endp)); 641f79738b0SHans de Goede } 642f79738b0SHans de Goede 6435c514681SGerd Hoffmann static int ehci_cancel_queue(EHCIQueue *q) 644c7cdca3bSGerd Hoffmann { 645c7cdca3bSGerd Hoffmann EHCIPacket *p; 6465c514681SGerd Hoffmann int packets = 0; 647c7cdca3bSGerd Hoffmann 648c7cdca3bSGerd Hoffmann p = QTAILQ_FIRST(&q->packets); 649c7cdca3bSGerd Hoffmann if (p == NULL) { 650f79738b0SHans de Goede goto leave; 651c7cdca3bSGerd Hoffmann } 652c7cdca3bSGerd Hoffmann 653c7cdca3bSGerd Hoffmann trace_usb_ehci_queue_action(q, "cancel"); 654c7cdca3bSGerd Hoffmann do { 655c7cdca3bSGerd Hoffmann ehci_free_packet(p); 6565c514681SGerd Hoffmann packets++; 657c7cdca3bSGerd Hoffmann } while ((p = QTAILQ_FIRST(&q->packets)) != NULL); 658f79738b0SHans de Goede 659f79738b0SHans de Goede leave: 660f79738b0SHans de Goede ehci_queue_stopped(q); 6615c514681SGerd Hoffmann return packets; 662c7cdca3bSGerd Hoffmann } 663c7cdca3bSGerd Hoffmann 6645c514681SGerd Hoffmann static int ehci_reset_queue(EHCIQueue *q) 665dafe31fcSHans de Goede { 6665c514681SGerd Hoffmann int packets; 6675c514681SGerd Hoffmann 668dafe31fcSHans de Goede trace_usb_ehci_queue_action(q, "reset"); 6695c514681SGerd Hoffmann packets = ehci_cancel_queue(q); 670dafe31fcSHans de Goede q->dev = NULL; 671dafe31fcSHans de Goede q->qtdaddr = 0; 672bbbc39ccSHans de Goede q->last_pid = 0; 6735c514681SGerd Hoffmann return packets; 674dafe31fcSHans de Goede } 675dafe31fcSHans de Goede 6763a8ca08eSHans de Goede static void ehci_free_queue(EHCIQueue *q, const char *warn) 677f1ae32a1SGerd Hoffmann { 678ae0138a8SGerd Hoffmann EHCIQueueHead *head = q->async ? &q->ehci->aqueues : &q->ehci->pqueues; 6793a8ca08eSHans de Goede int cancelled; 680eb36a88eSGerd Hoffmann 681f1ae32a1SGerd Hoffmann trace_usb_ehci_queue_action(q, "free"); 6823a8ca08eSHans de Goede cancelled = ehci_cancel_queue(q); 6833a8ca08eSHans de Goede if (warn && cancelled > 0) { 6843a8ca08eSHans de Goede ehci_trace_guest_bug(q->ehci, warn); 6853a8ca08eSHans de Goede } 686f1ae32a1SGerd Hoffmann QTAILQ_REMOVE(head, q, next); 687f1ae32a1SGerd Hoffmann g_free(q); 688f1ae32a1SGerd Hoffmann } 689f1ae32a1SGerd Hoffmann 690f1ae32a1SGerd Hoffmann static EHCIQueue *ehci_find_queue_by_qh(EHCIState *ehci, uint32_t addr, 691f1ae32a1SGerd Hoffmann int async) 692f1ae32a1SGerd Hoffmann { 693f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 694f1ae32a1SGerd Hoffmann EHCIQueue *q; 695f1ae32a1SGerd Hoffmann 696f1ae32a1SGerd Hoffmann QTAILQ_FOREACH(q, head, next) { 697f1ae32a1SGerd Hoffmann if (addr == q->qhaddr) { 698f1ae32a1SGerd Hoffmann return q; 699f1ae32a1SGerd Hoffmann } 700f1ae32a1SGerd Hoffmann } 701f1ae32a1SGerd Hoffmann return NULL; 702f1ae32a1SGerd Hoffmann } 703f1ae32a1SGerd Hoffmann 7048f5457ebSHans de Goede static void ehci_queues_rip_unused(EHCIState *ehci, int async) 705f1ae32a1SGerd Hoffmann { 706f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 7078f5457ebSHans de Goede const char *warn = async ? "guest unlinked busy QH" : NULL; 7083a215326SGerd Hoffmann uint64_t maxage = FRAME_TIMER_NS * ehci->maxframes * 4; 709f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 710f1ae32a1SGerd Hoffmann 711f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 712f1ae32a1SGerd Hoffmann if (q->seen) { 713f1ae32a1SGerd Hoffmann q->seen = 0; 714f1ae32a1SGerd Hoffmann q->ts = ehci->last_run_ns; 715f1ae32a1SGerd Hoffmann continue; 716f1ae32a1SGerd Hoffmann } 7178f5457ebSHans de Goede if (ehci->last_run_ns < q->ts + maxage) { 718f1ae32a1SGerd Hoffmann continue; 719f1ae32a1SGerd Hoffmann } 7203a8ca08eSHans de Goede ehci_free_queue(q, warn); 721f1ae32a1SGerd Hoffmann } 722f1ae32a1SGerd Hoffmann } 723f1ae32a1SGerd Hoffmann 7248f5457ebSHans de Goede static void ehci_queues_rip_unseen(EHCIState *ehci, int async) 7258f5457ebSHans de Goede { 7268f5457ebSHans de Goede EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 7278f5457ebSHans de Goede EHCIQueue *q, *tmp; 7288f5457ebSHans de Goede 7298f5457ebSHans de Goede QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 7308f5457ebSHans de Goede if (!q->seen) { 7318f5457ebSHans de Goede ehci_free_queue(q, NULL); 7328f5457ebSHans de Goede } 7338f5457ebSHans de Goede } 7348f5457ebSHans de Goede } 7358f5457ebSHans de Goede 736f1ae32a1SGerd Hoffmann static void ehci_queues_rip_device(EHCIState *ehci, USBDevice *dev, int async) 737f1ae32a1SGerd Hoffmann { 738f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 739f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 740f1ae32a1SGerd Hoffmann 741f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 742e59928b3SGerd Hoffmann if (q->dev != dev) { 743f1ae32a1SGerd Hoffmann continue; 744f1ae32a1SGerd Hoffmann } 7453a8ca08eSHans de Goede ehci_free_queue(q, NULL); 746f1ae32a1SGerd Hoffmann } 747f1ae32a1SGerd Hoffmann } 748f1ae32a1SGerd Hoffmann 749f1ae32a1SGerd Hoffmann static void ehci_queues_rip_all(EHCIState *ehci, int async) 750f1ae32a1SGerd Hoffmann { 751f1ae32a1SGerd Hoffmann EHCIQueueHead *head = async ? &ehci->aqueues : &ehci->pqueues; 7523a8ca08eSHans de Goede const char *warn = async ? "guest stopped busy async schedule" : NULL; 753f1ae32a1SGerd Hoffmann EHCIQueue *q, *tmp; 754f1ae32a1SGerd Hoffmann 755f1ae32a1SGerd Hoffmann QTAILQ_FOREACH_SAFE(q, head, next, tmp) { 7563a8ca08eSHans de Goede ehci_free_queue(q, warn); 757f1ae32a1SGerd Hoffmann } 758f1ae32a1SGerd Hoffmann } 759f1ae32a1SGerd Hoffmann 760f1ae32a1SGerd Hoffmann /* Attach or detach a device on root hub */ 761f1ae32a1SGerd Hoffmann 762f1ae32a1SGerd Hoffmann static void ehci_attach(USBPort *port) 763f1ae32a1SGerd Hoffmann { 764f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 765f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port->index]; 76630e9d412SGerd Hoffmann const char *owner = (*portsc & PORTSC_POWNER) ? "comp" : "ehci"; 767f1ae32a1SGerd Hoffmann 76830e9d412SGerd Hoffmann trace_usb_ehci_port_attach(port->index, owner, port->dev->product_desc); 769f1ae32a1SGerd Hoffmann 770f1ae32a1SGerd Hoffmann if (*portsc & PORTSC_POWNER) { 771f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 772f1ae32a1SGerd Hoffmann companion->dev = port->dev; 773f1ae32a1SGerd Hoffmann companion->ops->attach(companion); 774f1ae32a1SGerd Hoffmann return; 775f1ae32a1SGerd Hoffmann } 776f1ae32a1SGerd Hoffmann 777f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CONNECT; 778f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CSC; 779f1ae32a1SGerd Hoffmann 7807efc17afSGerd Hoffmann ehci_raise_irq(s, USBSTS_PCD); 781f1ae32a1SGerd Hoffmann } 782f1ae32a1SGerd Hoffmann 783f1ae32a1SGerd Hoffmann static void ehci_detach(USBPort *port) 784f1ae32a1SGerd Hoffmann { 785f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 786f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port->index]; 78730e9d412SGerd Hoffmann const char *owner = (*portsc & PORTSC_POWNER) ? "comp" : "ehci"; 788f1ae32a1SGerd Hoffmann 78930e9d412SGerd Hoffmann trace_usb_ehci_port_detach(port->index, owner); 790f1ae32a1SGerd Hoffmann 791f1ae32a1SGerd Hoffmann if (*portsc & PORTSC_POWNER) { 792f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 793f1ae32a1SGerd Hoffmann companion->ops->detach(companion); 794f1ae32a1SGerd Hoffmann companion->dev = NULL; 795f1ae32a1SGerd Hoffmann /* 796f1ae32a1SGerd Hoffmann * EHCI spec 4.2.2: "When a disconnect occurs... On the event, 797f1ae32a1SGerd Hoffmann * the port ownership is returned immediately to the EHCI controller." 798f1ae32a1SGerd Hoffmann */ 799f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_POWNER; 800f1ae32a1SGerd Hoffmann return; 801f1ae32a1SGerd Hoffmann } 802f1ae32a1SGerd Hoffmann 803f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, port->dev, 0); 804f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, port->dev, 1); 805f1ae32a1SGerd Hoffmann 806f1ae32a1SGerd Hoffmann *portsc &= ~(PORTSC_CONNECT|PORTSC_PED); 807f1ae32a1SGerd Hoffmann *portsc |= PORTSC_CSC; 808f1ae32a1SGerd Hoffmann 8097efc17afSGerd Hoffmann ehci_raise_irq(s, USBSTS_PCD); 810f1ae32a1SGerd Hoffmann } 811f1ae32a1SGerd Hoffmann 812f1ae32a1SGerd Hoffmann static void ehci_child_detach(USBPort *port, USBDevice *child) 813f1ae32a1SGerd Hoffmann { 814f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 815f1ae32a1SGerd Hoffmann uint32_t portsc = s->portsc[port->index]; 816f1ae32a1SGerd Hoffmann 817f1ae32a1SGerd Hoffmann if (portsc & PORTSC_POWNER) { 818f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 819f1ae32a1SGerd Hoffmann companion->ops->child_detach(companion, child); 820f1ae32a1SGerd Hoffmann return; 821f1ae32a1SGerd Hoffmann } 822f1ae32a1SGerd Hoffmann 823f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, child, 0); 824f1ae32a1SGerd Hoffmann ehci_queues_rip_device(s, child, 1); 825f1ae32a1SGerd Hoffmann } 826f1ae32a1SGerd Hoffmann 827f1ae32a1SGerd Hoffmann static void ehci_wakeup(USBPort *port) 828f1ae32a1SGerd Hoffmann { 829f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 830f1ae32a1SGerd Hoffmann uint32_t portsc = s->portsc[port->index]; 831f1ae32a1SGerd Hoffmann 832f1ae32a1SGerd Hoffmann if (portsc & PORTSC_POWNER) { 833f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 834f1ae32a1SGerd Hoffmann if (companion->ops->wakeup) { 835f1ae32a1SGerd Hoffmann companion->ops->wakeup(companion); 83637952117SHans de Goede } 83737952117SHans de Goede return; 83837952117SHans de Goede } 83937952117SHans de Goede 8400f588df8SGerd Hoffmann qemu_bh_schedule(s->async_bh); 841f1ae32a1SGerd Hoffmann } 842f1ae32a1SGerd Hoffmann 843f1ae32a1SGerd Hoffmann static int ehci_register_companion(USBBus *bus, USBPort *ports[], 844f1ae32a1SGerd Hoffmann uint32_t portcount, uint32_t firstport) 845f1ae32a1SGerd Hoffmann { 846f1ae32a1SGerd Hoffmann EHCIState *s = container_of(bus, EHCIState, bus); 847f1ae32a1SGerd Hoffmann uint32_t i; 848f1ae32a1SGerd Hoffmann 849f1ae32a1SGerd Hoffmann if (firstport + portcount > NB_PORTS) { 850f1ae32a1SGerd Hoffmann qerror_report(QERR_INVALID_PARAMETER_VALUE, "firstport", 851f1ae32a1SGerd Hoffmann "firstport on masterbus"); 852f1ae32a1SGerd Hoffmann error_printf_unless_qmp( 853f1ae32a1SGerd Hoffmann "firstport value of %u makes companion take ports %u - %u, which " 854f1ae32a1SGerd Hoffmann "is outside of the valid range of 0 - %u\n", firstport, firstport, 855f1ae32a1SGerd Hoffmann firstport + portcount - 1, NB_PORTS - 1); 856f1ae32a1SGerd Hoffmann return -1; 857f1ae32a1SGerd Hoffmann } 858f1ae32a1SGerd Hoffmann 859f1ae32a1SGerd Hoffmann for (i = 0; i < portcount; i++) { 860f1ae32a1SGerd Hoffmann if (s->companion_ports[firstport + i]) { 861f1ae32a1SGerd Hoffmann qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus", 862f1ae32a1SGerd Hoffmann "an USB masterbus"); 863f1ae32a1SGerd Hoffmann error_printf_unless_qmp( 864f1ae32a1SGerd Hoffmann "port %u on masterbus %s already has a companion assigned\n", 865f1ae32a1SGerd Hoffmann firstport + i, bus->qbus.name); 866f1ae32a1SGerd Hoffmann return -1; 867f1ae32a1SGerd Hoffmann } 868f1ae32a1SGerd Hoffmann } 869f1ae32a1SGerd Hoffmann 870f1ae32a1SGerd Hoffmann for (i = 0; i < portcount; i++) { 871f1ae32a1SGerd Hoffmann s->companion_ports[firstport + i] = ports[i]; 872f1ae32a1SGerd Hoffmann s->ports[firstport + i].speedmask |= 873f1ae32a1SGerd Hoffmann USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL; 874f1ae32a1SGerd Hoffmann /* Ensure devs attached before the initial reset go to the companion */ 875f1ae32a1SGerd Hoffmann s->portsc[firstport + i] = PORTSC_POWNER; 876f1ae32a1SGerd Hoffmann } 877f1ae32a1SGerd Hoffmann 878f1ae32a1SGerd Hoffmann s->companion_count++; 8793e4f910cSGerd Hoffmann s->caps[0x05] = (s->companion_count << 4) | portcount; 880f1ae32a1SGerd Hoffmann 881f1ae32a1SGerd Hoffmann return 0; 882f1ae32a1SGerd Hoffmann } 883f1ae32a1SGerd Hoffmann 8848550a02dSGerd Hoffmann static void ehci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep, 8858550a02dSGerd Hoffmann unsigned int stream) 88680826240SHans de Goede { 88780826240SHans de Goede EHCIState *s = container_of(bus, EHCIState, bus); 88880826240SHans de Goede uint32_t portsc = s->portsc[ep->dev->port->index]; 88980826240SHans de Goede 89080826240SHans de Goede if (portsc & PORTSC_POWNER) { 89180826240SHans de Goede return; 89280826240SHans de Goede } 89380826240SHans de Goede 89480826240SHans de Goede s->periodic_sched_active = PERIODIC_ACTIVE; 89580826240SHans de Goede qemu_bh_schedule(s->async_bh); 89680826240SHans de Goede } 89780826240SHans de Goede 898f1ae32a1SGerd Hoffmann static USBDevice *ehci_find_device(EHCIState *ehci, uint8_t addr) 899f1ae32a1SGerd Hoffmann { 900f1ae32a1SGerd Hoffmann USBDevice *dev; 901f1ae32a1SGerd Hoffmann USBPort *port; 902f1ae32a1SGerd Hoffmann int i; 903f1ae32a1SGerd Hoffmann 904f1ae32a1SGerd Hoffmann for (i = 0; i < NB_PORTS; i++) { 905f1ae32a1SGerd Hoffmann port = &ehci->ports[i]; 906f1ae32a1SGerd Hoffmann if (!(ehci->portsc[i] & PORTSC_PED)) { 907f1ae32a1SGerd Hoffmann DPRINTF("Port %d not enabled\n", i); 908f1ae32a1SGerd Hoffmann continue; 909f1ae32a1SGerd Hoffmann } 910f1ae32a1SGerd Hoffmann dev = usb_find_device(port, addr); 911f1ae32a1SGerd Hoffmann if (dev != NULL) { 912f1ae32a1SGerd Hoffmann return dev; 913f1ae32a1SGerd Hoffmann } 914f1ae32a1SGerd Hoffmann } 915f1ae32a1SGerd Hoffmann return NULL; 916f1ae32a1SGerd Hoffmann } 917f1ae32a1SGerd Hoffmann 918f1ae32a1SGerd Hoffmann /* 4.1 host controller initialization */ 919f1ae32a1SGerd Hoffmann static void ehci_reset(void *opaque) 920f1ae32a1SGerd Hoffmann { 921f1ae32a1SGerd Hoffmann EHCIState *s = opaque; 922f1ae32a1SGerd Hoffmann int i; 923f1ae32a1SGerd Hoffmann USBDevice *devs[NB_PORTS]; 924f1ae32a1SGerd Hoffmann 925f1ae32a1SGerd Hoffmann trace_usb_ehci_reset(); 926f1ae32a1SGerd Hoffmann 927f1ae32a1SGerd Hoffmann /* 928f1ae32a1SGerd Hoffmann * Do the detach before touching portsc, so that it correctly gets send to 929f1ae32a1SGerd Hoffmann * us or to our companion based on PORTSC_POWNER before the reset. 930f1ae32a1SGerd Hoffmann */ 931f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) { 932f1ae32a1SGerd Hoffmann devs[i] = s->ports[i].dev; 933f1ae32a1SGerd Hoffmann if (devs[i] && devs[i]->attached) { 934f1ae32a1SGerd Hoffmann usb_detach(&s->ports[i]); 935f1ae32a1SGerd Hoffmann } 936f1ae32a1SGerd Hoffmann } 937f1ae32a1SGerd Hoffmann 9383e4f910cSGerd Hoffmann memset(&s->opreg, 0x00, sizeof(s->opreg)); 9393e4f910cSGerd Hoffmann memset(&s->portsc, 0x00, sizeof(s->portsc)); 940f1ae32a1SGerd Hoffmann 941f1ae32a1SGerd Hoffmann s->usbcmd = NB_MAXINTRATE << USBCMD_ITC_SH; 942f1ae32a1SGerd Hoffmann s->usbsts = USBSTS_HALT; 9437efc17afSGerd Hoffmann s->usbsts_pending = 0; 9447efc17afSGerd Hoffmann s->usbsts_frindex = 0; 945f1ae32a1SGerd Hoffmann 946f1ae32a1SGerd Hoffmann s->astate = EST_INACTIVE; 947f1ae32a1SGerd Hoffmann s->pstate = EST_INACTIVE; 948f1ae32a1SGerd Hoffmann 949f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) { 950f1ae32a1SGerd Hoffmann if (s->companion_ports[i]) { 951f1ae32a1SGerd Hoffmann s->portsc[i] = PORTSC_POWNER | PORTSC_PPOWER; 952f1ae32a1SGerd Hoffmann } else { 953f1ae32a1SGerd Hoffmann s->portsc[i] = PORTSC_PPOWER; 954f1ae32a1SGerd Hoffmann } 955f1ae32a1SGerd Hoffmann if (devs[i] && devs[i]->attached) { 956f1ae32a1SGerd Hoffmann usb_attach(&s->ports[i]); 957f1ae32a1SGerd Hoffmann usb_device_reset(devs[i]); 958f1ae32a1SGerd Hoffmann } 959f1ae32a1SGerd Hoffmann } 960f1ae32a1SGerd Hoffmann ehci_queues_rip_all(s, 0); 961f1ae32a1SGerd Hoffmann ehci_queues_rip_all(s, 1); 962bc72ad67SAlex Bligh timer_del(s->frame_timer); 9630fb3e299SGerd Hoffmann qemu_bh_cancel(s->async_bh); 964f1ae32a1SGerd Hoffmann } 965f1ae32a1SGerd Hoffmann 966a8170e5eSAvi Kivity static uint64_t ehci_caps_read(void *ptr, hwaddr addr, 9673e4f910cSGerd Hoffmann unsigned size) 9683e4f910cSGerd Hoffmann { 9693e4f910cSGerd Hoffmann EHCIState *s = ptr; 9703e4f910cSGerd Hoffmann return s->caps[addr]; 9713e4f910cSGerd Hoffmann } 9723e4f910cSGerd Hoffmann 973a8170e5eSAvi Kivity static uint64_t ehci_opreg_read(void *ptr, hwaddr addr, 9743e4f910cSGerd Hoffmann unsigned size) 975f1ae32a1SGerd Hoffmann { 976f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 977f1ae32a1SGerd Hoffmann uint32_t val; 978f1ae32a1SGerd Hoffmann 9799359a58bSHans de Goede switch (addr) { 9809359a58bSHans de Goede case FRINDEX: 9819359a58bSHans de Goede /* Round down to mult of 8, else it can go backwards on migration */ 9829359a58bSHans de Goede val = s->frindex & ~7; 9839359a58bSHans de Goede break; 9849359a58bSHans de Goede default: 9853e4f910cSGerd Hoffmann val = s->opreg[addr >> 2]; 9869359a58bSHans de Goede } 9879359a58bSHans de Goede 98827a11324SPeter Crosthwaite trace_usb_ehci_opreg_read(addr + s->opregbase, addr2str(addr), val); 989f1ae32a1SGerd Hoffmann return val; 990f1ae32a1SGerd Hoffmann } 991f1ae32a1SGerd Hoffmann 992a8170e5eSAvi Kivity static uint64_t ehci_port_read(void *ptr, hwaddr addr, 9933e4f910cSGerd Hoffmann unsigned size) 994f1ae32a1SGerd Hoffmann { 995f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 996f1ae32a1SGerd Hoffmann uint32_t val; 997f1ae32a1SGerd Hoffmann 9983e4f910cSGerd Hoffmann val = s->portsc[addr >> 2]; 999cc8d6a84SKuo-Jung Su trace_usb_ehci_portsc_read(addr + s->portscbase, addr >> 2, val); 1000f1ae32a1SGerd Hoffmann return val; 1001f1ae32a1SGerd Hoffmann } 1002f1ae32a1SGerd Hoffmann 1003f1ae32a1SGerd Hoffmann static void handle_port_owner_write(EHCIState *s, int port, uint32_t owner) 1004f1ae32a1SGerd Hoffmann { 1005f1ae32a1SGerd Hoffmann USBDevice *dev = s->ports[port].dev; 1006f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port]; 1007f1ae32a1SGerd Hoffmann uint32_t orig; 1008f1ae32a1SGerd Hoffmann 1009f1ae32a1SGerd Hoffmann if (s->companion_ports[port] == NULL) 1010f1ae32a1SGerd Hoffmann return; 1011f1ae32a1SGerd Hoffmann 1012f1ae32a1SGerd Hoffmann owner = owner & PORTSC_POWNER; 1013f1ae32a1SGerd Hoffmann orig = *portsc & PORTSC_POWNER; 1014f1ae32a1SGerd Hoffmann 1015f1ae32a1SGerd Hoffmann if (!(owner ^ orig)) { 1016f1ae32a1SGerd Hoffmann return; 1017f1ae32a1SGerd Hoffmann } 1018f1ae32a1SGerd Hoffmann 1019f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 1020f1ae32a1SGerd Hoffmann usb_detach(&s->ports[port]); 1021f1ae32a1SGerd Hoffmann } 1022f1ae32a1SGerd Hoffmann 1023f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_POWNER; 1024f1ae32a1SGerd Hoffmann *portsc |= owner; 1025f1ae32a1SGerd Hoffmann 1026f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 1027f1ae32a1SGerd Hoffmann usb_attach(&s->ports[port]); 1028f1ae32a1SGerd Hoffmann } 1029f1ae32a1SGerd Hoffmann } 1030f1ae32a1SGerd Hoffmann 1031a8170e5eSAvi Kivity static void ehci_port_write(void *ptr, hwaddr addr, 10323e4f910cSGerd Hoffmann uint64_t val, unsigned size) 1033f1ae32a1SGerd Hoffmann { 10343e4f910cSGerd Hoffmann EHCIState *s = ptr; 10353e4f910cSGerd Hoffmann int port = addr >> 2; 1036f1ae32a1SGerd Hoffmann uint32_t *portsc = &s->portsc[port]; 10373e4f910cSGerd Hoffmann uint32_t old = *portsc; 1038f1ae32a1SGerd Hoffmann USBDevice *dev = s->ports[port].dev; 1039f1ae32a1SGerd Hoffmann 1040cc8d6a84SKuo-Jung Su trace_usb_ehci_portsc_write(addr + s->portscbase, addr >> 2, val); 10413e4f910cSGerd Hoffmann 1042f1ae32a1SGerd Hoffmann /* Clear rwc bits */ 1043f1ae32a1SGerd Hoffmann *portsc &= ~(val & PORTSC_RWC_MASK); 1044f1ae32a1SGerd Hoffmann /* The guest may clear, but not set the PED bit */ 1045f1ae32a1SGerd Hoffmann *portsc &= val | ~PORTSC_PED; 1046f1ae32a1SGerd Hoffmann /* POWNER is masked out by RO_MASK as it is RO when we've no companion */ 1047f1ae32a1SGerd Hoffmann handle_port_owner_write(s, port, val); 1048f1ae32a1SGerd Hoffmann /* And finally apply RO_MASK */ 1049f1ae32a1SGerd Hoffmann val &= PORTSC_RO_MASK; 1050f1ae32a1SGerd Hoffmann 1051f1ae32a1SGerd Hoffmann if ((val & PORTSC_PRESET) && !(*portsc & PORTSC_PRESET)) { 1052f1ae32a1SGerd Hoffmann trace_usb_ehci_port_reset(port, 1); 1053f1ae32a1SGerd Hoffmann } 1054f1ae32a1SGerd Hoffmann 1055f1ae32a1SGerd Hoffmann if (!(val & PORTSC_PRESET) &&(*portsc & PORTSC_PRESET)) { 1056f1ae32a1SGerd Hoffmann trace_usb_ehci_port_reset(port, 0); 1057f1ae32a1SGerd Hoffmann if (dev && dev->attached) { 1058f1ae32a1SGerd Hoffmann usb_port_reset(&s->ports[port]); 1059f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_CSC; 1060f1ae32a1SGerd Hoffmann } 1061f1ae32a1SGerd Hoffmann 1062f1ae32a1SGerd Hoffmann /* 1063f1ae32a1SGerd Hoffmann * Table 2.16 Set the enable bit(and enable bit change) to indicate 1064f1ae32a1SGerd Hoffmann * to SW that this port has a high speed device attached 1065f1ae32a1SGerd Hoffmann */ 1066f1ae32a1SGerd Hoffmann if (dev && dev->attached && (dev->speedmask & USB_SPEED_MASK_HIGH)) { 1067f1ae32a1SGerd Hoffmann val |= PORTSC_PED; 1068f1ae32a1SGerd Hoffmann } 1069f1ae32a1SGerd Hoffmann } 1070f1ae32a1SGerd Hoffmann 1071f1ae32a1SGerd Hoffmann *portsc &= ~PORTSC_RO_MASK; 1072f1ae32a1SGerd Hoffmann *portsc |= val; 1073cc8d6a84SKuo-Jung Su trace_usb_ehci_portsc_change(addr + s->portscbase, addr >> 2, *portsc, old); 1074f1ae32a1SGerd Hoffmann } 1075f1ae32a1SGerd Hoffmann 1076a8170e5eSAvi Kivity static void ehci_opreg_write(void *ptr, hwaddr addr, 10773e4f910cSGerd Hoffmann uint64_t val, unsigned size) 1078f1ae32a1SGerd Hoffmann { 1079f1ae32a1SGerd Hoffmann EHCIState *s = ptr; 10803e4f910cSGerd Hoffmann uint32_t *mmio = s->opreg + (addr >> 2); 1081f1ae32a1SGerd Hoffmann uint32_t old = *mmio; 1082f1ae32a1SGerd Hoffmann int i; 1083f1ae32a1SGerd Hoffmann 108427a11324SPeter Crosthwaite trace_usb_ehci_opreg_write(addr + s->opregbase, addr2str(addr), val); 1085f1ae32a1SGerd Hoffmann 108627a11324SPeter Crosthwaite switch (addr) { 1087f1ae32a1SGerd Hoffmann case USBCMD: 10887046530cSGerd Hoffmann if (val & USBCMD_HCRESET) { 10897046530cSGerd Hoffmann ehci_reset(s); 10907046530cSGerd Hoffmann val = s->usbcmd; 10917046530cSGerd Hoffmann break; 10927046530cSGerd Hoffmann } 10937046530cSGerd Hoffmann 1094f1ae32a1SGerd Hoffmann /* not supporting dynamic frame list size at the moment */ 1095f1ae32a1SGerd Hoffmann if ((val & USBCMD_FLS) && !(s->usbcmd & USBCMD_FLS)) { 1096f1ae32a1SGerd Hoffmann fprintf(stderr, "attempt to set frame list size -- value %d\n", 10973e4f910cSGerd Hoffmann (int)val & USBCMD_FLS); 1098f1ae32a1SGerd Hoffmann val &= ~USBCMD_FLS; 1099f1ae32a1SGerd Hoffmann } 110047d073ccSHans de Goede 1101a1c3e4b8SHans de Goede if (val & USBCMD_IAAD) { 1102a1c3e4b8SHans de Goede /* 1103a1c3e4b8SHans de Goede * Process IAAD immediately, otherwise the Linux IAAD watchdog may 1104a1c3e4b8SHans de Goede * trigger and re-use a qh without us seeing the unlink. 1105a1c3e4b8SHans de Goede */ 1106a1c3e4b8SHans de Goede s->async_stepdown = 0; 1107a1c3e4b8SHans de Goede qemu_bh_schedule(s->async_bh); 11081defcbd1SGerd Hoffmann trace_usb_ehci_doorbell_ring(); 1109a1c3e4b8SHans de Goede } 1110a1c3e4b8SHans de Goede 111147d073ccSHans de Goede if (((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & val) != 111247d073ccSHans de Goede ((USBCMD_RUNSTOP | USBCMD_PSE | USBCMD_ASE) & s->usbcmd)) { 111347d073ccSHans de Goede if (s->pstate == EST_INACTIVE) { 111447d073ccSHans de Goede SET_LAST_RUN_CLOCK(s); 111547d073ccSHans de Goede } 111647d073ccSHans de Goede s->usbcmd = val; /* Set usbcmd for ehci_update_halt() */ 111747d073ccSHans de Goede ehci_update_halt(s); 111847d073ccSHans de Goede s->async_stepdown = 0; 11190262f65aSHans de Goede qemu_bh_schedule(s->async_bh); 112047d073ccSHans de Goede } 1121f1ae32a1SGerd Hoffmann break; 1122f1ae32a1SGerd Hoffmann 1123f1ae32a1SGerd Hoffmann case USBSTS: 1124a31f0531SJim Meyering val &= USBSTS_RO_MASK; // bits 6 through 31 are RO 1125a31f0531SJim Meyering ehci_clear_usbsts(s, val); // bits 0 through 5 are R/WC 1126f1ae32a1SGerd Hoffmann val = s->usbsts; 11277efc17afSGerd Hoffmann ehci_update_irq(s); 1128f1ae32a1SGerd Hoffmann break; 1129f1ae32a1SGerd Hoffmann 1130f1ae32a1SGerd Hoffmann case USBINTR: 1131f1ae32a1SGerd Hoffmann val &= USBINTR_MASK; 113240862309SGerd Hoffmann if (ehci_enabled(s) && (USBSTS_FLR & val)) { 113340862309SGerd Hoffmann qemu_bh_schedule(s->async_bh); 113440862309SGerd Hoffmann } 1135f1ae32a1SGerd Hoffmann break; 1136f1ae32a1SGerd Hoffmann 11378a771f77SHans de Goede case FRINDEX: 11389359a58bSHans de Goede val &= 0x00003fff; /* frindex is 14bits */ 11399359a58bSHans de Goede s->usbsts_frindex = val; 11408a771f77SHans de Goede break; 11418a771f77SHans de Goede 1142f1ae32a1SGerd Hoffmann case CONFIGFLAG: 1143f1ae32a1SGerd Hoffmann val &= 0x1; 1144f1ae32a1SGerd Hoffmann if (val) { 1145f1ae32a1SGerd Hoffmann for(i = 0; i < NB_PORTS; i++) 1146f1ae32a1SGerd Hoffmann handle_port_owner_write(s, i, 0); 1147f1ae32a1SGerd Hoffmann } 1148f1ae32a1SGerd Hoffmann break; 1149f1ae32a1SGerd Hoffmann 1150f1ae32a1SGerd Hoffmann case PERIODICLISTBASE: 1151ec807d12SGerd Hoffmann if (ehci_periodic_enabled(s)) { 1152f1ae32a1SGerd Hoffmann fprintf(stderr, 1153f1ae32a1SGerd Hoffmann "ehci: PERIODIC list base register set while periodic schedule\n" 1154f1ae32a1SGerd Hoffmann " is enabled and HC is enabled\n"); 1155f1ae32a1SGerd Hoffmann } 1156f1ae32a1SGerd Hoffmann break; 1157f1ae32a1SGerd Hoffmann 1158f1ae32a1SGerd Hoffmann case ASYNCLISTADDR: 1159ec807d12SGerd Hoffmann if (ehci_async_enabled(s)) { 1160f1ae32a1SGerd Hoffmann fprintf(stderr, 1161f1ae32a1SGerd Hoffmann "ehci: ASYNC list address register set while async schedule\n" 1162f1ae32a1SGerd Hoffmann " is enabled and HC is enabled\n"); 1163f1ae32a1SGerd Hoffmann } 1164f1ae32a1SGerd Hoffmann break; 1165f1ae32a1SGerd Hoffmann } 1166f1ae32a1SGerd Hoffmann 1167f1ae32a1SGerd Hoffmann *mmio = val; 116827a11324SPeter Crosthwaite trace_usb_ehci_opreg_change(addr + s->opregbase, addr2str(addr), 116927a11324SPeter Crosthwaite *mmio, old); 1170f1ae32a1SGerd Hoffmann } 1171f1ae32a1SGerd Hoffmann 1172a5e0139aSGerd Hoffmann /* 1173a5e0139aSGerd Hoffmann * Write the qh back to guest physical memory. This step isn't 1174a5e0139aSGerd Hoffmann * in the EHCI spec but we need to do it since we don't share 1175a5e0139aSGerd Hoffmann * physical memory with our guest VM. 1176a5e0139aSGerd Hoffmann * 1177a5e0139aSGerd Hoffmann * The first three dwords are read-only for the EHCI, so skip them 1178a5e0139aSGerd Hoffmann * when writing back the qh. 1179a5e0139aSGerd Hoffmann */ 1180a5e0139aSGerd Hoffmann static void ehci_flush_qh(EHCIQueue *q) 1181a5e0139aSGerd Hoffmann { 1182a5e0139aSGerd Hoffmann uint32_t *qh = (uint32_t *) &q->qh; 1183a5e0139aSGerd Hoffmann uint32_t dwords = sizeof(EHCIqh) >> 2; 1184a5e0139aSGerd Hoffmann uint32_t addr = NLPTR_GET(q->qhaddr); 1185a5e0139aSGerd Hoffmann 1186a5e0139aSGerd Hoffmann put_dwords(q->ehci, addr + 3 * sizeof(uint32_t), qh + 3, dwords - 3); 1187a5e0139aSGerd Hoffmann } 1188a5e0139aSGerd Hoffmann 1189f1ae32a1SGerd Hoffmann // 4.10.2 1190f1ae32a1SGerd Hoffmann 1191f1ae32a1SGerd Hoffmann static int ehci_qh_do_overlay(EHCIQueue *q) 1192f1ae32a1SGerd Hoffmann { 1193eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1194f1ae32a1SGerd Hoffmann int i; 1195f1ae32a1SGerd Hoffmann int dtoggle; 1196f1ae32a1SGerd Hoffmann int ping; 1197f1ae32a1SGerd Hoffmann int eps; 1198f1ae32a1SGerd Hoffmann int reload; 1199f1ae32a1SGerd Hoffmann 1200eb36a88eSGerd Hoffmann assert(p != NULL); 1201eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1202eb36a88eSGerd Hoffmann 1203f1ae32a1SGerd Hoffmann // remember values in fields to preserve in qh after overlay 1204f1ae32a1SGerd Hoffmann 1205f1ae32a1SGerd Hoffmann dtoggle = q->qh.token & QTD_TOKEN_DTOGGLE; 1206f1ae32a1SGerd Hoffmann ping = q->qh.token & QTD_TOKEN_PING; 1207f1ae32a1SGerd Hoffmann 1208eb36a88eSGerd Hoffmann q->qh.current_qtd = p->qtdaddr; 1209eb36a88eSGerd Hoffmann q->qh.next_qtd = p->qtd.next; 1210eb36a88eSGerd Hoffmann q->qh.altnext_qtd = p->qtd.altnext; 1211eb36a88eSGerd Hoffmann q->qh.token = p->qtd.token; 1212f1ae32a1SGerd Hoffmann 1213f1ae32a1SGerd Hoffmann 1214f1ae32a1SGerd Hoffmann eps = get_field(q->qh.epchar, QH_EPCHAR_EPS); 1215f1ae32a1SGerd Hoffmann if (eps == EHCI_QH_EPS_HIGH) { 1216f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_PING; 1217f1ae32a1SGerd Hoffmann q->qh.token |= ping; 1218f1ae32a1SGerd Hoffmann } 1219f1ae32a1SGerd Hoffmann 1220f1ae32a1SGerd Hoffmann reload = get_field(q->qh.epchar, QH_EPCHAR_RL); 1221f1ae32a1SGerd Hoffmann set_field(&q->qh.altnext_qtd, reload, QH_ALTNEXT_NAKCNT); 1222f1ae32a1SGerd Hoffmann 1223f1ae32a1SGerd Hoffmann for (i = 0; i < 5; i++) { 1224eb36a88eSGerd Hoffmann q->qh.bufptr[i] = p->qtd.bufptr[i]; 1225f1ae32a1SGerd Hoffmann } 1226f1ae32a1SGerd Hoffmann 1227f1ae32a1SGerd Hoffmann if (!(q->qh.epchar & QH_EPCHAR_DTC)) { 1228f1ae32a1SGerd Hoffmann // preserve QH DT bit 1229f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_DTOGGLE; 1230f1ae32a1SGerd Hoffmann q->qh.token |= dtoggle; 1231f1ae32a1SGerd Hoffmann } 1232f1ae32a1SGerd Hoffmann 1233f1ae32a1SGerd Hoffmann q->qh.bufptr[1] &= ~BUFPTR_CPROGMASK_MASK; 1234f1ae32a1SGerd Hoffmann q->qh.bufptr[2] &= ~BUFPTR_FRAMETAG_MASK; 1235f1ae32a1SGerd Hoffmann 1236a5e0139aSGerd Hoffmann ehci_flush_qh(q); 1237f1ae32a1SGerd Hoffmann 1238f1ae32a1SGerd Hoffmann return 0; 1239f1ae32a1SGerd Hoffmann } 1240f1ae32a1SGerd Hoffmann 1241eb36a88eSGerd Hoffmann static int ehci_init_transfer(EHCIPacket *p) 1242f1ae32a1SGerd Hoffmann { 1243f1ae32a1SGerd Hoffmann uint32_t cpage, offset, bytes, plen; 1244f1ae32a1SGerd Hoffmann dma_addr_t page; 1245f1ae32a1SGerd Hoffmann 1246eb36a88eSGerd Hoffmann cpage = get_field(p->qtd.token, QTD_TOKEN_CPAGE); 1247eb36a88eSGerd Hoffmann bytes = get_field(p->qtd.token, QTD_TOKEN_TBYTES); 1248eb36a88eSGerd Hoffmann offset = p->qtd.bufptr[0] & ~QTD_BUFPTR_MASK; 1249adbecc89SGerd Hoffmann qemu_sglist_init(&p->sgl, p->queue->ehci->device, 5, p->queue->ehci->as); 1250f1ae32a1SGerd Hoffmann 1251f1ae32a1SGerd Hoffmann while (bytes > 0) { 1252f1ae32a1SGerd Hoffmann if (cpage > 4) { 1253f1ae32a1SGerd Hoffmann fprintf(stderr, "cpage out of range (%d)\n", cpage); 125401e26b0eSHans de Goede return -1; 1255f1ae32a1SGerd Hoffmann } 1256f1ae32a1SGerd Hoffmann 1257eb36a88eSGerd Hoffmann page = p->qtd.bufptr[cpage] & QTD_BUFPTR_MASK; 1258f1ae32a1SGerd Hoffmann page += offset; 1259f1ae32a1SGerd Hoffmann plen = bytes; 1260f1ae32a1SGerd Hoffmann if (plen > 4096 - offset) { 1261f1ae32a1SGerd Hoffmann plen = 4096 - offset; 1262f1ae32a1SGerd Hoffmann offset = 0; 1263f1ae32a1SGerd Hoffmann cpage++; 1264f1ae32a1SGerd Hoffmann } 1265f1ae32a1SGerd Hoffmann 1266eb36a88eSGerd Hoffmann qemu_sglist_add(&p->sgl, page, plen); 1267f1ae32a1SGerd Hoffmann bytes -= plen; 1268f1ae32a1SGerd Hoffmann } 1269f1ae32a1SGerd Hoffmann return 0; 1270f1ae32a1SGerd Hoffmann } 1271f1ae32a1SGerd Hoffmann 1272e696b1daSHans de Goede static void ehci_finish_transfer(EHCIQueue *q, int len) 1273f1ae32a1SGerd Hoffmann { 1274f1ae32a1SGerd Hoffmann uint32_t cpage, offset; 1275f1ae32a1SGerd Hoffmann 1276e696b1daSHans de Goede if (len > 0) { 1277f1ae32a1SGerd Hoffmann /* update cpage & offset */ 1278f1ae32a1SGerd Hoffmann cpage = get_field(q->qh.token, QTD_TOKEN_CPAGE); 1279f1ae32a1SGerd Hoffmann offset = q->qh.bufptr[0] & ~QTD_BUFPTR_MASK; 1280f1ae32a1SGerd Hoffmann 1281e696b1daSHans de Goede offset += len; 1282f1ae32a1SGerd Hoffmann cpage += offset >> QTD_BUFPTR_SH; 1283f1ae32a1SGerd Hoffmann offset &= ~QTD_BUFPTR_MASK; 1284f1ae32a1SGerd Hoffmann 1285f1ae32a1SGerd Hoffmann set_field(&q->qh.token, cpage, QTD_TOKEN_CPAGE); 1286f1ae32a1SGerd Hoffmann q->qh.bufptr[0] &= QTD_BUFPTR_MASK; 1287f1ae32a1SGerd Hoffmann q->qh.bufptr[0] |= offset; 1288f1ae32a1SGerd Hoffmann } 1289f1ae32a1SGerd Hoffmann } 1290f1ae32a1SGerd Hoffmann 1291f1ae32a1SGerd Hoffmann static void ehci_async_complete_packet(USBPort *port, USBPacket *packet) 1292f1ae32a1SGerd Hoffmann { 1293eb36a88eSGerd Hoffmann EHCIPacket *p; 1294f1ae32a1SGerd Hoffmann EHCIState *s = port->opaque; 1295f1ae32a1SGerd Hoffmann uint32_t portsc = s->portsc[port->index]; 1296f1ae32a1SGerd Hoffmann 1297f1ae32a1SGerd Hoffmann if (portsc & PORTSC_POWNER) { 1298f1ae32a1SGerd Hoffmann USBPort *companion = s->companion_ports[port->index]; 1299f1ae32a1SGerd Hoffmann companion->ops->complete(companion, packet); 1300f1ae32a1SGerd Hoffmann return; 1301f1ae32a1SGerd Hoffmann } 1302f1ae32a1SGerd Hoffmann 1303eb36a88eSGerd Hoffmann p = container_of(packet, EHCIPacket, packet); 1304eb36a88eSGerd Hoffmann assert(p->async == EHCI_ASYNC_INFLIGHT); 13050cae7b1aSHans de Goede 13069a77a0f5SHans de Goede if (packet->status == USB_RET_REMOVE_FROM_QUEUE) { 13070cae7b1aSHans de Goede trace_usb_ehci_packet_action(p->queue, p, "remove"); 13080cae7b1aSHans de Goede ehci_free_packet(p); 13090cae7b1aSHans de Goede return; 13100cae7b1aSHans de Goede } 13110cae7b1aSHans de Goede 13120cae7b1aSHans de Goede trace_usb_ehci_packet_action(p->queue, p, "wakeup"); 1313eb36a88eSGerd Hoffmann p->async = EHCI_ASYNC_FINISHED; 1314ae710b99SGerd Hoffmann 131580826240SHans de Goede if (!p->queue->async) { 131680826240SHans de Goede s->periodic_sched_active = PERIODIC_ACTIVE; 1317ae710b99SGerd Hoffmann } 131880826240SHans de Goede qemu_bh_schedule(s->async_bh); 1319f1ae32a1SGerd Hoffmann } 1320f1ae32a1SGerd Hoffmann 1321f1ae32a1SGerd Hoffmann static void ehci_execute_complete(EHCIQueue *q) 1322f1ae32a1SGerd Hoffmann { 1323eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1324e696b1daSHans de Goede uint32_t tbytes; 1325eb36a88eSGerd Hoffmann 1326eb36a88eSGerd Hoffmann assert(p != NULL); 1327eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1328ef5b2344SHans de Goede assert(p->async == EHCI_ASYNC_INITIALIZED || 1329ef5b2344SHans de Goede p->async == EHCI_ASYNC_FINISHED); 1330f1ae32a1SGerd Hoffmann 1331e696b1daSHans de Goede DPRINTF("execute_complete: qhaddr 0x%x, next 0x%x, qtdaddr 0x%x, " 1332e696b1daSHans de Goede "status %d, actual_length %d\n", 1333e696b1daSHans de Goede q->qhaddr, q->qh.next, q->qtdaddr, 1334e696b1daSHans de Goede p->packet.status, p->packet.actual_length); 1335f1ae32a1SGerd Hoffmann 1336e696b1daSHans de Goede switch (p->packet.status) { 1337e696b1daSHans de Goede case USB_RET_SUCCESS: 1338e696b1daSHans de Goede break; 1339f1ae32a1SGerd Hoffmann case USB_RET_IOERROR: 1340f1ae32a1SGerd Hoffmann case USB_RET_NODEV: 1341f1ae32a1SGerd Hoffmann q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_XACTERR); 1342f1ae32a1SGerd Hoffmann set_field(&q->qh.token, 0, QTD_TOKEN_CERR); 13437efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1344f1ae32a1SGerd Hoffmann break; 1345f1ae32a1SGerd Hoffmann case USB_RET_STALL: 1346f1ae32a1SGerd Hoffmann q->qh.token |= QTD_TOKEN_HALT; 13477efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1348f1ae32a1SGerd Hoffmann break; 1349f1ae32a1SGerd Hoffmann case USB_RET_NAK: 1350f1ae32a1SGerd Hoffmann set_field(&q->qh.altnext_qtd, 0, QH_ALTNEXT_NAKCNT); 1351f1ae32a1SGerd Hoffmann return; /* We're not done yet with this transaction */ 1352f1ae32a1SGerd Hoffmann case USB_RET_BABBLE: 1353f1ae32a1SGerd Hoffmann q->qh.token |= (QTD_TOKEN_HALT | QTD_TOKEN_BABBLE); 13547efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_ERRINT); 1355f1ae32a1SGerd Hoffmann break; 1356f1ae32a1SGerd Hoffmann default: 1357f1ae32a1SGerd Hoffmann /* should not be triggerable */ 1358e696b1daSHans de Goede fprintf(stderr, "USB invalid response %d\n", p->packet.status); 1359dfc6f865SStefan Weil g_assert_not_reached(); 1360f1ae32a1SGerd Hoffmann break; 1361f1ae32a1SGerd Hoffmann } 1362f1ae32a1SGerd Hoffmann 1363e696b1daSHans de Goede /* TODO check 4.12 for splits */ 1364e696b1daSHans de Goede tbytes = get_field(q->qh.token, QTD_TOKEN_TBYTES); 1365549a3c3dSHans de Goede if (tbytes && p->pid == USB_TOKEN_IN) { 1366e696b1daSHans de Goede tbytes -= p->packet.actual_length; 1367cf08a8a1SHans de Goede if (tbytes) { 1368cf08a8a1SHans de Goede /* 4.15.1.2 must raise int on a short input packet */ 1369cf08a8a1SHans de Goede ehci_raise_irq(q->ehci, USBSTS_INT); 137052c15e59SHans de Goede if (q->async) { 137152c15e59SHans de Goede q->ehci->int_req_by_async = true; 137252c15e59SHans de Goede } 1373cf08a8a1SHans de Goede } 1374f1ae32a1SGerd Hoffmann } else { 1375549a3c3dSHans de Goede tbytes = 0; 1376f1ae32a1SGerd Hoffmann } 1377549a3c3dSHans de Goede DPRINTF("updating tbytes to %d\n", tbytes); 1378549a3c3dSHans de Goede set_field(&q->qh.token, tbytes, QTD_TOKEN_TBYTES); 1379e696b1daSHans de Goede 1380e696b1daSHans de Goede ehci_finish_transfer(q, p->packet.actual_length); 1381e2f89926SDavid Gibson usb_packet_unmap(&p->packet, &p->sgl); 1382eb36a88eSGerd Hoffmann qemu_sglist_destroy(&p->sgl); 1383ef5b2344SHans de Goede p->async = EHCI_ASYNC_NONE; 1384f1ae32a1SGerd Hoffmann 1385f1ae32a1SGerd Hoffmann q->qh.token ^= QTD_TOKEN_DTOGGLE; 1386f1ae32a1SGerd Hoffmann q->qh.token &= ~QTD_TOKEN_ACTIVE; 1387f1ae32a1SGerd Hoffmann 1388f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_IOC) { 13897efc17afSGerd Hoffmann ehci_raise_irq(q->ehci, USBSTS_INT); 139044272b0fSHans de Goede if (q->async) { 139144272b0fSHans de Goede q->ehci->int_req_by_async = true; 139244272b0fSHans de Goede } 1393f1ae32a1SGerd Hoffmann } 1394f1ae32a1SGerd Hoffmann } 1395f1ae32a1SGerd Hoffmann 139601e26b0eSHans de Goede /* 4.10.3 returns "again" */ 1397773dc9cdSGerd Hoffmann static int ehci_execute(EHCIPacket *p, const char *action) 1398f1ae32a1SGerd Hoffmann { 1399f1ae32a1SGerd Hoffmann USBEndpoint *ep; 1400f1ae32a1SGerd Hoffmann int endp; 14016ba43f1fSHans de Goede bool spd; 1402f1ae32a1SGerd Hoffmann 1403ef5b2344SHans de Goede assert(p->async == EHCI_ASYNC_NONE || 1404ef5b2344SHans de Goede p->async == EHCI_ASYNC_INITIALIZED); 1405ef5b2344SHans de Goede 14064224558fSGerd Hoffmann if (!(p->qtd.token & QTD_TOKEN_ACTIVE)) { 14074224558fSGerd Hoffmann fprintf(stderr, "Attempting to execute inactive qtd\n"); 140801e26b0eSHans de Goede return -1; 1409f1ae32a1SGerd Hoffmann } 1410f1ae32a1SGerd Hoffmann 1411549a3c3dSHans de Goede if (get_field(p->qtd.token, QTD_TOKEN_TBYTES) > BUFF_SIZE) { 14123a8ca08eSHans de Goede ehci_trace_guest_bug(p->queue->ehci, 14133a8ca08eSHans de Goede "guest requested more bytes than allowed"); 141401e26b0eSHans de Goede return -1; 1415f1ae32a1SGerd Hoffmann } 1416f1ae32a1SGerd Hoffmann 1417f79738b0SHans de Goede if (!ehci_verify_pid(p->queue, &p->qtd)) { 1418f79738b0SHans de Goede ehci_queue_stopped(p->queue); /* Mark the ep in the prev dir stopped */ 1419f79738b0SHans de Goede } 142051e0c5d0SHans de Goede p->pid = ehci_get_pid(&p->qtd); 1421bbbc39ccSHans de Goede p->queue->last_pid = p->pid; 1422ef5b2344SHans de Goede endp = get_field(p->queue->qh.epchar, QH_EPCHAR_EP); 1423ef5b2344SHans de Goede ep = usb_ep_get(p->queue->dev, p->pid, endp); 1424ef5b2344SHans de Goede 1425ef5b2344SHans de Goede if (p->async == EHCI_ASYNC_NONE) { 1426eb36a88eSGerd Hoffmann if (ehci_init_transfer(p) != 0) { 142701e26b0eSHans de Goede return -1; 1428f1ae32a1SGerd Hoffmann } 1429f1ae32a1SGerd Hoffmann 14306ba43f1fSHans de Goede spd = (p->pid == USB_TOKEN_IN && NLPTR_TBIT(p->qtd.altnext) == 0); 14318550a02dSGerd Hoffmann usb_packet_setup(&p->packet, p->pid, ep, 0, p->qtdaddr, spd, 1432a6fb2ddbSHans de Goede (p->qtd.token & QTD_TOKEN_IOC) != 0); 1433eb36a88eSGerd Hoffmann usb_packet_map(&p->packet, &p->sgl); 1434ef5b2344SHans de Goede p->async = EHCI_ASYNC_INITIALIZED; 1435ef5b2344SHans de Goede } 1436f1ae32a1SGerd Hoffmann 1437773dc9cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, action); 14389a77a0f5SHans de Goede usb_handle_packet(p->queue->dev, &p->packet); 14399a77a0f5SHans de Goede DPRINTF("submit: qh 0x%x next 0x%x qtd 0x%x pid 0x%x len %zd endp 0x%x " 14409a77a0f5SHans de Goede "status %d actual_length %d\n", p->queue->qhaddr, p->qtd.next, 14419a77a0f5SHans de Goede p->qtdaddr, p->pid, p->packet.iov.size, endp, p->packet.status, 14429a77a0f5SHans de Goede p->packet.actual_length); 1443f1ae32a1SGerd Hoffmann 14449a77a0f5SHans de Goede if (p->packet.actual_length > BUFF_SIZE) { 1445f1ae32a1SGerd Hoffmann fprintf(stderr, "ret from usb_handle_packet > BUFF_SIZE\n"); 144601e26b0eSHans de Goede return -1; 1447f1ae32a1SGerd Hoffmann } 1448f1ae32a1SGerd Hoffmann 144901e26b0eSHans de Goede return 1; 1450f1ae32a1SGerd Hoffmann } 1451f1ae32a1SGerd Hoffmann 1452f1ae32a1SGerd Hoffmann /* 4.7.2 1453f1ae32a1SGerd Hoffmann */ 1454f1ae32a1SGerd Hoffmann 1455f1ae32a1SGerd Hoffmann static int ehci_process_itd(EHCIState *ehci, 1456e983395dSGerd Hoffmann EHCIitd *itd, 1457e983395dSGerd Hoffmann uint32_t addr) 1458f1ae32a1SGerd Hoffmann { 1459f1ae32a1SGerd Hoffmann USBDevice *dev; 1460f1ae32a1SGerd Hoffmann USBEndpoint *ep; 1461f1ae32a1SGerd Hoffmann uint32_t i, len, pid, dir, devaddr, endp; 1462f1ae32a1SGerd Hoffmann uint32_t pg, off, ptr1, ptr2, max, mult; 1463f1ae32a1SGerd Hoffmann 146480826240SHans de Goede ehci->periodic_sched_active = PERIODIC_ACTIVE; 146580826240SHans de Goede 1466f1ae32a1SGerd Hoffmann dir =(itd->bufptr[1] & ITD_BUFPTR_DIRECTION); 1467f1ae32a1SGerd Hoffmann devaddr = get_field(itd->bufptr[0], ITD_BUFPTR_DEVADDR); 1468f1ae32a1SGerd Hoffmann endp = get_field(itd->bufptr[0], ITD_BUFPTR_EP); 1469f1ae32a1SGerd Hoffmann max = get_field(itd->bufptr[1], ITD_BUFPTR_MAXPKT); 1470f1ae32a1SGerd Hoffmann mult = get_field(itd->bufptr[2], ITD_BUFPTR_MULT); 1471f1ae32a1SGerd Hoffmann 1472f1ae32a1SGerd Hoffmann for(i = 0; i < 8; i++) { 1473f1ae32a1SGerd Hoffmann if (itd->transact[i] & ITD_XACT_ACTIVE) { 1474f1ae32a1SGerd Hoffmann pg = get_field(itd->transact[i], ITD_XACT_PGSEL); 1475f1ae32a1SGerd Hoffmann off = itd->transact[i] & ITD_XACT_OFFSET_MASK; 1476f1ae32a1SGerd Hoffmann ptr1 = (itd->bufptr[pg] & ITD_BUFPTR_MASK); 1477f1ae32a1SGerd Hoffmann ptr2 = (itd->bufptr[pg+1] & ITD_BUFPTR_MASK); 1478f1ae32a1SGerd Hoffmann len = get_field(itd->transact[i], ITD_XACT_LENGTH); 1479f1ae32a1SGerd Hoffmann 1480f1ae32a1SGerd Hoffmann if (len > max * mult) { 1481f1ae32a1SGerd Hoffmann len = max * mult; 1482f1ae32a1SGerd Hoffmann } 1483f1ae32a1SGerd Hoffmann 1484f1ae32a1SGerd Hoffmann if (len > BUFF_SIZE) { 148501e26b0eSHans de Goede return -1; 1486f1ae32a1SGerd Hoffmann } 1487f1ae32a1SGerd Hoffmann 1488adbecc89SGerd Hoffmann qemu_sglist_init(&ehci->isgl, ehci->device, 2, ehci->as); 1489f1ae32a1SGerd Hoffmann if (off + len > 4096) { 1490f1ae32a1SGerd Hoffmann /* transfer crosses page border */ 1491f1ae32a1SGerd Hoffmann uint32_t len2 = off + len - 4096; 1492f1ae32a1SGerd Hoffmann uint32_t len1 = len - len2; 1493f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr1 + off, len1); 1494f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr2, len2); 1495f1ae32a1SGerd Hoffmann } else { 1496f1ae32a1SGerd Hoffmann qemu_sglist_add(&ehci->isgl, ptr1 + off, len); 1497f1ae32a1SGerd Hoffmann } 1498f1ae32a1SGerd Hoffmann 1499f1ae32a1SGerd Hoffmann pid = dir ? USB_TOKEN_IN : USB_TOKEN_OUT; 1500f1ae32a1SGerd Hoffmann 1501f1ae32a1SGerd Hoffmann dev = ehci_find_device(ehci, devaddr); 1502f1ae32a1SGerd Hoffmann ep = usb_ep_get(dev, pid, endp); 15037ce86aa1SHans de Goede if (ep && ep->type == USB_ENDPOINT_XFER_ISOC) { 15048550a02dSGerd Hoffmann usb_packet_setup(&ehci->ipacket, pid, ep, 0, addr, false, 1505a6fb2ddbSHans de Goede (itd->transact[i] & ITD_XACT_IOC) != 0); 1506f1ae32a1SGerd Hoffmann usb_packet_map(&ehci->ipacket, &ehci->isgl); 15079a77a0f5SHans de Goede usb_handle_packet(dev, &ehci->ipacket); 1508e2f89926SDavid Gibson usb_packet_unmap(&ehci->ipacket, &ehci->isgl); 1509f1ae32a1SGerd Hoffmann } else { 1510f1ae32a1SGerd Hoffmann DPRINTF("ISOCH: attempt to addess non-iso endpoint\n"); 1511e696b1daSHans de Goede ehci->ipacket.status = USB_RET_NAK; 1512e696b1daSHans de Goede ehci->ipacket.actual_length = 0; 1513f1ae32a1SGerd Hoffmann } 1514f1ae32a1SGerd Hoffmann qemu_sglist_destroy(&ehci->isgl); 1515f1ae32a1SGerd Hoffmann 1516e696b1daSHans de Goede switch (ehci->ipacket.status) { 1517e696b1daSHans de Goede case USB_RET_SUCCESS: 1518e696b1daSHans de Goede break; 1519f1ae32a1SGerd Hoffmann default: 1520e696b1daSHans de Goede fprintf(stderr, "Unexpected iso usb result: %d\n", 1521e696b1daSHans de Goede ehci->ipacket.status); 1522f1ae32a1SGerd Hoffmann /* Fall through */ 1523f1ae32a1SGerd Hoffmann case USB_RET_IOERROR: 1524f1ae32a1SGerd Hoffmann case USB_RET_NODEV: 1525f1ae32a1SGerd Hoffmann /* 3.3.2: XACTERR is only allowed on IN transactions */ 1526f1ae32a1SGerd Hoffmann if (dir) { 1527f1ae32a1SGerd Hoffmann itd->transact[i] |= ITD_XACT_XACTERR; 15287efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_ERRINT); 1529f1ae32a1SGerd Hoffmann } 1530f1ae32a1SGerd Hoffmann break; 1531f1ae32a1SGerd Hoffmann case USB_RET_BABBLE: 1532f1ae32a1SGerd Hoffmann itd->transact[i] |= ITD_XACT_BABBLE; 15337efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_ERRINT); 1534f1ae32a1SGerd Hoffmann break; 1535f1ae32a1SGerd Hoffmann case USB_RET_NAK: 1536f1ae32a1SGerd Hoffmann /* no data for us, so do a zero-length transfer */ 1537e696b1daSHans de Goede ehci->ipacket.actual_length = 0; 1538f1ae32a1SGerd Hoffmann break; 1539f1ae32a1SGerd Hoffmann } 1540f1ae32a1SGerd Hoffmann if (!dir) { 1541e696b1daSHans de Goede set_field(&itd->transact[i], len - ehci->ipacket.actual_length, 1542e696b1daSHans de Goede ITD_XACT_LENGTH); /* OUT */ 1543f1ae32a1SGerd Hoffmann } else { 1544e696b1daSHans de Goede set_field(&itd->transact[i], ehci->ipacket.actual_length, 1545e696b1daSHans de Goede ITD_XACT_LENGTH); /* IN */ 1546f1ae32a1SGerd Hoffmann } 1547f1ae32a1SGerd Hoffmann if (itd->transact[i] & ITD_XACT_IOC) { 15487efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_INT); 1549f1ae32a1SGerd Hoffmann } 1550f1ae32a1SGerd Hoffmann itd->transact[i] &= ~ITD_XACT_ACTIVE; 1551f1ae32a1SGerd Hoffmann } 1552f1ae32a1SGerd Hoffmann } 1553f1ae32a1SGerd Hoffmann return 0; 1554f1ae32a1SGerd Hoffmann } 1555f1ae32a1SGerd Hoffmann 1556cd665715SGerd Hoffmann 1557f1ae32a1SGerd Hoffmann /* This state is the entry point for asynchronous schedule 1558f1ae32a1SGerd Hoffmann * processing. Entry here consitutes a EHCI start event state (4.8.5) 1559f1ae32a1SGerd Hoffmann */ 1560f1ae32a1SGerd Hoffmann static int ehci_state_waitlisthead(EHCIState *ehci, int async) 1561f1ae32a1SGerd Hoffmann { 1562f1ae32a1SGerd Hoffmann EHCIqh qh; 1563f1ae32a1SGerd Hoffmann int i = 0; 1564f1ae32a1SGerd Hoffmann int again = 0; 1565f1ae32a1SGerd Hoffmann uint32_t entry = ehci->asynclistaddr; 1566f1ae32a1SGerd Hoffmann 1567f1ae32a1SGerd Hoffmann /* set reclamation flag at start event (4.8.6) */ 1568f1ae32a1SGerd Hoffmann if (async) { 1569f1ae32a1SGerd Hoffmann ehci_set_usbsts(ehci, USBSTS_REC); 1570f1ae32a1SGerd Hoffmann } 1571f1ae32a1SGerd Hoffmann 15728f5457ebSHans de Goede ehci_queues_rip_unused(ehci, async); 1573f1ae32a1SGerd Hoffmann 1574f1ae32a1SGerd Hoffmann /* Find the head of the list (4.9.1.1) */ 1575f1ae32a1SGerd Hoffmann for(i = 0; i < MAX_QH; i++) { 157655903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &qh, 157755903f1dSGerd Hoffmann sizeof(EHCIqh) >> 2) < 0) { 157855903f1dSGerd Hoffmann return 0; 157955903f1dSGerd Hoffmann } 1580f1ae32a1SGerd Hoffmann ehci_trace_qh(NULL, NLPTR_GET(entry), &qh); 1581f1ae32a1SGerd Hoffmann 1582f1ae32a1SGerd Hoffmann if (qh.epchar & QH_EPCHAR_H) { 1583f1ae32a1SGerd Hoffmann if (async) { 1584f1ae32a1SGerd Hoffmann entry |= (NLPTR_TYPE_QH << 1); 1585f1ae32a1SGerd Hoffmann } 1586f1ae32a1SGerd Hoffmann 1587f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, entry); 1588f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1589f1ae32a1SGerd Hoffmann again = 1; 1590f1ae32a1SGerd Hoffmann goto out; 1591f1ae32a1SGerd Hoffmann } 1592f1ae32a1SGerd Hoffmann 1593f1ae32a1SGerd Hoffmann entry = qh.next; 1594f1ae32a1SGerd Hoffmann if (entry == ehci->asynclistaddr) { 1595f1ae32a1SGerd Hoffmann break; 1596f1ae32a1SGerd Hoffmann } 1597f1ae32a1SGerd Hoffmann } 1598f1ae32a1SGerd Hoffmann 1599f1ae32a1SGerd Hoffmann /* no head found for list. */ 1600f1ae32a1SGerd Hoffmann 1601f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1602f1ae32a1SGerd Hoffmann 1603f1ae32a1SGerd Hoffmann out: 1604f1ae32a1SGerd Hoffmann return again; 1605f1ae32a1SGerd Hoffmann } 1606f1ae32a1SGerd Hoffmann 1607f1ae32a1SGerd Hoffmann 1608f1ae32a1SGerd Hoffmann /* This state is the entry point for periodic schedule processing as 1609f1ae32a1SGerd Hoffmann * well as being a continuation state for async processing. 1610f1ae32a1SGerd Hoffmann */ 1611f1ae32a1SGerd Hoffmann static int ehci_state_fetchentry(EHCIState *ehci, int async) 1612f1ae32a1SGerd Hoffmann { 1613f1ae32a1SGerd Hoffmann int again = 0; 1614f1ae32a1SGerd Hoffmann uint32_t entry = ehci_get_fetch_addr(ehci, async); 1615f1ae32a1SGerd Hoffmann 1616f1ae32a1SGerd Hoffmann if (NLPTR_TBIT(entry)) { 1617f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1618f1ae32a1SGerd Hoffmann goto out; 1619f1ae32a1SGerd Hoffmann } 1620f1ae32a1SGerd Hoffmann 1621f1ae32a1SGerd Hoffmann /* section 4.8, only QH in async schedule */ 1622f1ae32a1SGerd Hoffmann if (async && (NLPTR_TYPE_GET(entry) != NLPTR_TYPE_QH)) { 1623f1ae32a1SGerd Hoffmann fprintf(stderr, "non queue head request in async schedule\n"); 1624f1ae32a1SGerd Hoffmann return -1; 1625f1ae32a1SGerd Hoffmann } 1626f1ae32a1SGerd Hoffmann 1627f1ae32a1SGerd Hoffmann switch (NLPTR_TYPE_GET(entry)) { 1628f1ae32a1SGerd Hoffmann case NLPTR_TYPE_QH: 1629f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHQH); 1630f1ae32a1SGerd Hoffmann again = 1; 1631f1ae32a1SGerd Hoffmann break; 1632f1ae32a1SGerd Hoffmann 1633f1ae32a1SGerd Hoffmann case NLPTR_TYPE_ITD: 1634f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHITD); 1635f1ae32a1SGerd Hoffmann again = 1; 1636f1ae32a1SGerd Hoffmann break; 1637f1ae32a1SGerd Hoffmann 1638f1ae32a1SGerd Hoffmann case NLPTR_TYPE_STITD: 1639f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHSITD); 1640f1ae32a1SGerd Hoffmann again = 1; 1641f1ae32a1SGerd Hoffmann break; 1642f1ae32a1SGerd Hoffmann 1643f1ae32a1SGerd Hoffmann default: 1644f1ae32a1SGerd Hoffmann /* TODO: handle FSTN type */ 1645f1ae32a1SGerd Hoffmann fprintf(stderr, "FETCHENTRY: entry at %X is of type %d " 1646f1ae32a1SGerd Hoffmann "which is not supported yet\n", entry, NLPTR_TYPE_GET(entry)); 1647f1ae32a1SGerd Hoffmann return -1; 1648f1ae32a1SGerd Hoffmann } 1649f1ae32a1SGerd Hoffmann 1650f1ae32a1SGerd Hoffmann out: 1651f1ae32a1SGerd Hoffmann return again; 1652f1ae32a1SGerd Hoffmann } 1653f1ae32a1SGerd Hoffmann 1654f1ae32a1SGerd Hoffmann static EHCIQueue *ehci_state_fetchqh(EHCIState *ehci, int async) 1655f1ae32a1SGerd Hoffmann { 1656c6432634SHans de Goede uint32_t entry; 1657f1ae32a1SGerd Hoffmann EHCIQueue *q; 1658dafe31fcSHans de Goede EHCIqh qh; 1659f1ae32a1SGerd Hoffmann 1660f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1661f1ae32a1SGerd Hoffmann q = ehci_find_queue_by_qh(ehci, entry, async); 1662f1ae32a1SGerd Hoffmann if (NULL == q) { 16638f6d5e26SGerd Hoffmann q = ehci_alloc_queue(ehci, entry, async); 1664f1ae32a1SGerd Hoffmann } 1665f1ae32a1SGerd Hoffmann 16668f6d5e26SGerd Hoffmann q->seen++; 1667f1ae32a1SGerd Hoffmann if (q->seen > 1) { 1668f1ae32a1SGerd Hoffmann /* we are going in circles -- stop processing */ 1669f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1670f1ae32a1SGerd Hoffmann q = NULL; 1671f1ae32a1SGerd Hoffmann goto out; 1672f1ae32a1SGerd Hoffmann } 1673f1ae32a1SGerd Hoffmann 167455903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(q->qhaddr), 167555903f1dSGerd Hoffmann (uint32_t *) &qh, sizeof(EHCIqh) >> 2) < 0) { 167655903f1dSGerd Hoffmann q = NULL; 167755903f1dSGerd Hoffmann goto out; 167855903f1dSGerd Hoffmann } 1679dafe31fcSHans de Goede ehci_trace_qh(q, NLPTR_GET(q->qhaddr), &qh); 1680f1ae32a1SGerd Hoffmann 1681dafe31fcSHans de Goede /* 1682dafe31fcSHans de Goede * The overlay area of the qh should never be changed by the guest, 1683dafe31fcSHans de Goede * except when idle, in which case the reset is a nop. 1684dafe31fcSHans de Goede */ 1685c6432634SHans de Goede if (!ehci_verify_qh(q, &qh)) { 16865c514681SGerd Hoffmann if (ehci_reset_queue(q) > 0) { 16875c514681SGerd Hoffmann ehci_trace_guest_bug(ehci, "guest updated active QH"); 16885c514681SGerd Hoffmann } 1689e59928b3SGerd Hoffmann } 1690dafe31fcSHans de Goede q->qh = qh; 1691dafe31fcSHans de Goede 1692cae5d3f4SHans de Goede q->transact_ctr = get_field(q->qh.epcap, QH_EPCAP_MULT); 1693cae5d3f4SHans de Goede if (q->transact_ctr == 0) { /* Guest bug in some versions of windows */ 1694cae5d3f4SHans de Goede q->transact_ctr = 4; 1695cae5d3f4SHans de Goede } 1696cae5d3f4SHans de Goede 1697e59928b3SGerd Hoffmann if (q->dev == NULL) { 1698c6432634SHans de Goede q->dev = ehci_find_device(q->ehci, 1699c6432634SHans de Goede get_field(q->qh.epchar, QH_EPCHAR_DEVADDR)); 1700e59928b3SGerd Hoffmann } 1701e59928b3SGerd Hoffmann 1702f1ae32a1SGerd Hoffmann if (async && (q->qh.epchar & QH_EPCHAR_H)) { 1703f1ae32a1SGerd Hoffmann 1704f1ae32a1SGerd Hoffmann /* EHCI spec version 1.0 Section 4.8.3 & 4.10.1 */ 1705f1ae32a1SGerd Hoffmann if (ehci->usbsts & USBSTS_REC) { 1706f1ae32a1SGerd Hoffmann ehci_clear_usbsts(ehci, USBSTS_REC); 1707f1ae32a1SGerd Hoffmann } else { 1708f1ae32a1SGerd Hoffmann DPRINTF("FETCHQH: QH 0x%08x. H-bit set, reclamation status reset" 1709f1ae32a1SGerd Hoffmann " - done processing\n", q->qhaddr); 1710f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 1711f1ae32a1SGerd Hoffmann q = NULL; 1712f1ae32a1SGerd Hoffmann goto out; 1713f1ae32a1SGerd Hoffmann } 1714f1ae32a1SGerd Hoffmann } 1715f1ae32a1SGerd Hoffmann 1716f1ae32a1SGerd Hoffmann #if EHCI_DEBUG 1717f1ae32a1SGerd Hoffmann if (q->qhaddr != q->qh.next) { 1718f1ae32a1SGerd Hoffmann DPRINTF("FETCHQH: QH 0x%08x (h %x halt %x active %x) next 0x%08x\n", 1719f1ae32a1SGerd Hoffmann q->qhaddr, 1720f1ae32a1SGerd Hoffmann q->qh.epchar & QH_EPCHAR_H, 1721f1ae32a1SGerd Hoffmann q->qh.token & QTD_TOKEN_HALT, 1722f1ae32a1SGerd Hoffmann q->qh.token & QTD_TOKEN_ACTIVE, 1723f1ae32a1SGerd Hoffmann q->qh.next); 1724f1ae32a1SGerd Hoffmann } 1725f1ae32a1SGerd Hoffmann #endif 1726f1ae32a1SGerd Hoffmann 1727f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_HALT) { 1728f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_HORIZONTALQH); 1729f1ae32a1SGerd Hoffmann 1730f1ae32a1SGerd Hoffmann } else if ((q->qh.token & QTD_TOKEN_ACTIVE) && 1731f1ae32a1SGerd Hoffmann (NLPTR_TBIT(q->qh.current_qtd) == 0)) { 1732f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.current_qtd; 1733f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHQTD); 1734f1ae32a1SGerd Hoffmann 1735f1ae32a1SGerd Hoffmann } else { 1736f1ae32a1SGerd Hoffmann /* EHCI spec version 1.0 Section 4.10.2 */ 1737f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ADVANCEQUEUE); 1738f1ae32a1SGerd Hoffmann } 1739f1ae32a1SGerd Hoffmann 1740f1ae32a1SGerd Hoffmann out: 1741f1ae32a1SGerd Hoffmann return q; 1742f1ae32a1SGerd Hoffmann } 1743f1ae32a1SGerd Hoffmann 1744f1ae32a1SGerd Hoffmann static int ehci_state_fetchitd(EHCIState *ehci, int async) 1745f1ae32a1SGerd Hoffmann { 1746f1ae32a1SGerd Hoffmann uint32_t entry; 1747f1ae32a1SGerd Hoffmann EHCIitd itd; 1748f1ae32a1SGerd Hoffmann 1749f1ae32a1SGerd Hoffmann assert(!async); 1750f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1751f1ae32a1SGerd Hoffmann 175255903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd, 175355903f1dSGerd Hoffmann sizeof(EHCIitd) >> 2) < 0) { 175455903f1dSGerd Hoffmann return -1; 175555903f1dSGerd Hoffmann } 1756f1ae32a1SGerd Hoffmann ehci_trace_itd(ehci, entry, &itd); 1757f1ae32a1SGerd Hoffmann 1758e983395dSGerd Hoffmann if (ehci_process_itd(ehci, &itd, entry) != 0) { 1759f1ae32a1SGerd Hoffmann return -1; 1760f1ae32a1SGerd Hoffmann } 1761f1ae32a1SGerd Hoffmann 1762f1ae32a1SGerd Hoffmann put_dwords(ehci, NLPTR_GET(entry), (uint32_t *) &itd, 1763f1ae32a1SGerd Hoffmann sizeof(EHCIitd) >> 2); 1764f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, itd.next); 1765f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1766f1ae32a1SGerd Hoffmann 1767f1ae32a1SGerd Hoffmann return 1; 1768f1ae32a1SGerd Hoffmann } 1769f1ae32a1SGerd Hoffmann 1770f1ae32a1SGerd Hoffmann static int ehci_state_fetchsitd(EHCIState *ehci, int async) 1771f1ae32a1SGerd Hoffmann { 1772f1ae32a1SGerd Hoffmann uint32_t entry; 1773f1ae32a1SGerd Hoffmann EHCIsitd sitd; 1774f1ae32a1SGerd Hoffmann 1775f1ae32a1SGerd Hoffmann assert(!async); 1776f1ae32a1SGerd Hoffmann entry = ehci_get_fetch_addr(ehci, async); 1777f1ae32a1SGerd Hoffmann 177855903f1dSGerd Hoffmann if (get_dwords(ehci, NLPTR_GET(entry), (uint32_t *)&sitd, 177955903f1dSGerd Hoffmann sizeof(EHCIsitd) >> 2) < 0) { 178055903f1dSGerd Hoffmann return 0; 178155903f1dSGerd Hoffmann } 1782f1ae32a1SGerd Hoffmann ehci_trace_sitd(ehci, entry, &sitd); 1783f1ae32a1SGerd Hoffmann 1784f1ae32a1SGerd Hoffmann if (!(sitd.results & SITD_RESULTS_ACTIVE)) { 1785f1ae32a1SGerd Hoffmann /* siTD is not active, nothing to do */; 1786f1ae32a1SGerd Hoffmann } else { 1787f1ae32a1SGerd Hoffmann /* TODO: split transfers are not implemented */ 1788f1ae32a1SGerd Hoffmann fprintf(stderr, "WARNING: Skipping active siTD\n"); 1789f1ae32a1SGerd Hoffmann } 1790f1ae32a1SGerd Hoffmann 1791f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async, sitd.next); 1792f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 1793f1ae32a1SGerd Hoffmann return 1; 1794f1ae32a1SGerd Hoffmann } 1795f1ae32a1SGerd Hoffmann 1796f1ae32a1SGerd Hoffmann /* Section 4.10.2 - paragraph 3 */ 1797ae0138a8SGerd Hoffmann static int ehci_state_advqueue(EHCIQueue *q) 1798f1ae32a1SGerd Hoffmann { 1799f1ae32a1SGerd Hoffmann #if 0 1800f1ae32a1SGerd Hoffmann /* TO-DO: 4.10.2 - paragraph 2 1801f1ae32a1SGerd Hoffmann * if I-bit is set to 1 and QH is not active 1802f1ae32a1SGerd Hoffmann * go to horizontal QH 1803f1ae32a1SGerd Hoffmann */ 1804f1ae32a1SGerd Hoffmann if (I-bit set) { 1805f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_HORIZONTALQH); 1806f1ae32a1SGerd Hoffmann goto out; 1807f1ae32a1SGerd Hoffmann } 1808f1ae32a1SGerd Hoffmann #endif 1809f1ae32a1SGerd Hoffmann 1810f1ae32a1SGerd Hoffmann /* 1811f1ae32a1SGerd Hoffmann * want data and alt-next qTD is valid 1812f1ae32a1SGerd Hoffmann */ 1813f1ae32a1SGerd Hoffmann if (((q->qh.token & QTD_TOKEN_TBYTES_MASK) != 0) && 1814f1ae32a1SGerd Hoffmann (NLPTR_TBIT(q->qh.altnext_qtd) == 0)) { 1815f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.altnext_qtd; 1816ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHQTD); 1817f1ae32a1SGerd Hoffmann 1818f1ae32a1SGerd Hoffmann /* 1819f1ae32a1SGerd Hoffmann * next qTD is valid 1820f1ae32a1SGerd Hoffmann */ 1821f1ae32a1SGerd Hoffmann } else if (NLPTR_TBIT(q->qh.next_qtd) == 0) { 1822f1ae32a1SGerd Hoffmann q->qtdaddr = q->qh.next_qtd; 1823ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHQTD); 1824f1ae32a1SGerd Hoffmann 1825f1ae32a1SGerd Hoffmann /* 1826f1ae32a1SGerd Hoffmann * no valid qTD, try next QH 1827f1ae32a1SGerd Hoffmann */ 1828f1ae32a1SGerd Hoffmann } else { 1829ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1830f1ae32a1SGerd Hoffmann } 1831f1ae32a1SGerd Hoffmann 1832f1ae32a1SGerd Hoffmann return 1; 1833f1ae32a1SGerd Hoffmann } 1834f1ae32a1SGerd Hoffmann 1835f1ae32a1SGerd Hoffmann /* Section 4.10.2 - paragraph 4 */ 1836ae0138a8SGerd Hoffmann static int ehci_state_fetchqtd(EHCIQueue *q) 1837f1ae32a1SGerd Hoffmann { 1838eb36a88eSGerd Hoffmann EHCIqtd qtd; 1839eb36a88eSGerd Hoffmann EHCIPacket *p; 1840b4ea8664SHans de Goede int again = 1; 1841f1ae32a1SGerd Hoffmann 184255903f1dSGerd Hoffmann if (get_dwords(q->ehci, NLPTR_GET(q->qtdaddr), (uint32_t *) &qtd, 184355903f1dSGerd Hoffmann sizeof(EHCIqtd) >> 2) < 0) { 184455903f1dSGerd Hoffmann return 0; 184555903f1dSGerd Hoffmann } 1846eb36a88eSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(q->qtdaddr), &qtd); 1847f1ae32a1SGerd Hoffmann 1848773dc9cdSGerd Hoffmann p = QTAILQ_FIRST(&q->packets); 1849287fd3f1SGerd Hoffmann if (p != NULL) { 1850c6432634SHans de Goede if (!ehci_verify_qtd(p, &qtd)) { 1851287fd3f1SGerd Hoffmann ehci_cancel_queue(q); 1852d066c57bSHans de Goede if (qtd.token & QTD_TOKEN_ACTIVE) { 1853d066c57bSHans de Goede ehci_trace_guest_bug(q->ehci, "guest updated active qTD"); 1854d066c57bSHans de Goede } 1855287fd3f1SGerd Hoffmann p = NULL; 1856287fd3f1SGerd Hoffmann } else { 1857287fd3f1SGerd Hoffmann p->qtd = qtd; 1858287fd3f1SGerd Hoffmann ehci_qh_do_overlay(q); 1859287fd3f1SGerd Hoffmann } 1860287fd3f1SGerd Hoffmann } 1861287fd3f1SGerd Hoffmann 1862287fd3f1SGerd Hoffmann if (!(qtd.token & QTD_TOKEN_ACTIVE)) { 1863287fd3f1SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1864287fd3f1SGerd Hoffmann } else if (p != NULL) { 1865adf47834SHans de Goede switch (p->async) { 1866adf47834SHans de Goede case EHCI_ASYNC_NONE: 1867ef5b2344SHans de Goede case EHCI_ASYNC_INITIALIZED: 1868cae5d3f4SHans de Goede /* Not yet executed (MULT), or previously nacked (int) packet */ 1869adf47834SHans de Goede ehci_set_state(q->ehci, q->async, EST_EXECUTE); 1870adf47834SHans de Goede break; 1871adf47834SHans de Goede case EHCI_ASYNC_INFLIGHT: 1872b4ea8664SHans de Goede /* Check if the guest has added new tds to the queue */ 187301e26b0eSHans de Goede again = ehci_fill_queue(QTAILQ_LAST(&q->packets, pkts_head)); 1874ef5b2344SHans de Goede /* Unfinished async handled packet, go horizontal */ 1875ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1876adf47834SHans de Goede break; 1877adf47834SHans de Goede case EHCI_ASYNC_FINISHED: 1878e3fdfd48SHans de Goede /* Complete executing of the packet */ 1879ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTING); 1880adf47834SHans de Goede break; 1881773dc9cdSGerd Hoffmann } 1882287fd3f1SGerd Hoffmann } else { 1883eb36a88eSGerd Hoffmann p = ehci_alloc_packet(q); 1884eb36a88eSGerd Hoffmann p->qtdaddr = q->qtdaddr; 1885eb36a88eSGerd Hoffmann p->qtd = qtd; 1886ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTE); 1887f1ae32a1SGerd Hoffmann } 1888f1ae32a1SGerd Hoffmann 1889f1ae32a1SGerd Hoffmann return again; 1890f1ae32a1SGerd Hoffmann } 1891f1ae32a1SGerd Hoffmann 1892ae0138a8SGerd Hoffmann static int ehci_state_horizqh(EHCIQueue *q) 1893f1ae32a1SGerd Hoffmann { 1894f1ae32a1SGerd Hoffmann int again = 0; 1895f1ae32a1SGerd Hoffmann 1896ae0138a8SGerd Hoffmann if (ehci_get_fetch_addr(q->ehci, q->async) != q->qh.next) { 1897ae0138a8SGerd Hoffmann ehci_set_fetch_addr(q->ehci, q->async, q->qh.next); 1898ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_FETCHENTRY); 1899f1ae32a1SGerd Hoffmann again = 1; 1900f1ae32a1SGerd Hoffmann } else { 1901ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_ACTIVE); 1902f1ae32a1SGerd Hoffmann } 1903f1ae32a1SGerd Hoffmann 1904f1ae32a1SGerd Hoffmann return again; 1905f1ae32a1SGerd Hoffmann } 1906f1ae32a1SGerd Hoffmann 190701e26b0eSHans de Goede /* Returns "again" */ 1908eff6dce7SHans de Goede static int ehci_fill_queue(EHCIPacket *p) 1909773dc9cdSGerd Hoffmann { 191036dfe324SHans de Goede USBEndpoint *ep = p->packet.ep; 1911773dc9cdSGerd Hoffmann EHCIQueue *q = p->queue; 1912773dc9cdSGerd Hoffmann EHCIqtd qtd = p->qtd; 1913601a2347SHans de Goede uint32_t qtdaddr; 1914773dc9cdSGerd Hoffmann 1915773dc9cdSGerd Hoffmann for (;;) { 1916773dc9cdSGerd Hoffmann if (NLPTR_TBIT(qtd.next) != 0) { 1917773dc9cdSGerd Hoffmann break; 1918773dc9cdSGerd Hoffmann } 1919773dc9cdSGerd Hoffmann qtdaddr = qtd.next; 1920e3a36bceSHans de Goede /* 1921e3a36bceSHans de Goede * Detect circular td lists, Windows creates these, counting on the 1922e3a36bceSHans de Goede * active bit going low after execution to make the queue stop. 1923e3a36bceSHans de Goede */ 1924601a2347SHans de Goede QTAILQ_FOREACH(p, &q->packets, next) { 1925601a2347SHans de Goede if (p->qtdaddr == qtdaddr) { 1926601a2347SHans de Goede goto leave; 1927601a2347SHans de Goede } 1928e3a36bceSHans de Goede } 192955903f1dSGerd Hoffmann if (get_dwords(q->ehci, NLPTR_GET(qtdaddr), 193055903f1dSGerd Hoffmann (uint32_t *) &qtd, sizeof(EHCIqtd) >> 2) < 0) { 193155903f1dSGerd Hoffmann return -1; 193255903f1dSGerd Hoffmann } 1933773dc9cdSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(qtdaddr), &qtd); 1934773dc9cdSGerd Hoffmann if (!(qtd.token & QTD_TOKEN_ACTIVE)) { 1935773dc9cdSGerd Hoffmann break; 1936773dc9cdSGerd Hoffmann } 1937bbbc39ccSHans de Goede if (!ehci_verify_pid(q, &qtd)) { 1938bbbc39ccSHans de Goede ehci_trace_guest_bug(q->ehci, "guest queued token with wrong pid"); 1939bbbc39ccSHans de Goede break; 1940bbbc39ccSHans de Goede } 1941773dc9cdSGerd Hoffmann p = ehci_alloc_packet(q); 1942773dc9cdSGerd Hoffmann p->qtdaddr = qtdaddr; 1943773dc9cdSGerd Hoffmann p->qtd = qtd; 194401e26b0eSHans de Goede if (ehci_execute(p, "queue") == -1) { 194501e26b0eSHans de Goede return -1; 1946eff6dce7SHans de Goede } 194701e26b0eSHans de Goede assert(p->packet.status == USB_RET_ASYNC); 1948773dc9cdSGerd Hoffmann p->async = EHCI_ASYNC_INFLIGHT; 1949773dc9cdSGerd Hoffmann } 1950601a2347SHans de Goede leave: 195136dfe324SHans de Goede usb_device_flush_ep_queue(ep->dev, ep); 195201e26b0eSHans de Goede return 1; 1953773dc9cdSGerd Hoffmann } 1954773dc9cdSGerd Hoffmann 1955ae0138a8SGerd Hoffmann static int ehci_state_execute(EHCIQueue *q) 1956f1ae32a1SGerd Hoffmann { 1957eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 1958f1ae32a1SGerd Hoffmann int again = 0; 1959f1ae32a1SGerd Hoffmann 1960eb36a88eSGerd Hoffmann assert(p != NULL); 1961eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 1962eb36a88eSGerd Hoffmann 1963f1ae32a1SGerd Hoffmann if (ehci_qh_do_overlay(q) != 0) { 1964f1ae32a1SGerd Hoffmann return -1; 1965f1ae32a1SGerd Hoffmann } 1966f1ae32a1SGerd Hoffmann 1967f1ae32a1SGerd Hoffmann // TODO verify enough time remains in the uframe as in 4.4.1.1 1968f1ae32a1SGerd Hoffmann // TODO write back ptr to async list when done or out of time 1969f1ae32a1SGerd Hoffmann 1970cae5d3f4SHans de Goede /* 4.10.3, bottom of page 82, go horizontal on transaction counter == 0 */ 1971cae5d3f4SHans de Goede if (!q->async && q->transact_ctr == 0) { 1972ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1973f1ae32a1SGerd Hoffmann again = 1; 1974f1ae32a1SGerd Hoffmann goto out; 1975f1ae32a1SGerd Hoffmann } 1976f1ae32a1SGerd Hoffmann 1977ae0138a8SGerd Hoffmann if (q->async) { 1978f1ae32a1SGerd Hoffmann ehci_set_usbsts(q->ehci, USBSTS_REC); 1979f1ae32a1SGerd Hoffmann } 1980f1ae32a1SGerd Hoffmann 198101e26b0eSHans de Goede again = ehci_execute(p, "process"); 198201e26b0eSHans de Goede if (again == -1) { 1983f1ae32a1SGerd Hoffmann goto out; 1984f1ae32a1SGerd Hoffmann } 198501e26b0eSHans de Goede if (p->packet.status == USB_RET_ASYNC) { 1986f1ae32a1SGerd Hoffmann ehci_flush_qh(q); 1987773dc9cdSGerd Hoffmann trace_usb_ehci_packet_action(p->queue, p, "async"); 1988eb36a88eSGerd Hoffmann p->async = EHCI_ASYNC_INFLIGHT; 1989ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 1990cae5d3f4SHans de Goede if (q->async) { 199101e26b0eSHans de Goede again = ehci_fill_queue(p); 1992cae5d3f4SHans de Goede } else { 1993cae5d3f4SHans de Goede again = 1; 1994cae5d3f4SHans de Goede } 1995f1ae32a1SGerd Hoffmann goto out; 1996f1ae32a1SGerd Hoffmann } 1997f1ae32a1SGerd Hoffmann 1998ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_EXECUTING); 1999f1ae32a1SGerd Hoffmann again = 1; 2000f1ae32a1SGerd Hoffmann 2001f1ae32a1SGerd Hoffmann out: 2002f1ae32a1SGerd Hoffmann return again; 2003f1ae32a1SGerd Hoffmann } 2004f1ae32a1SGerd Hoffmann 2005ae0138a8SGerd Hoffmann static int ehci_state_executing(EHCIQueue *q) 2006f1ae32a1SGerd Hoffmann { 2007eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 2008f1ae32a1SGerd Hoffmann 2009eb36a88eSGerd Hoffmann assert(p != NULL); 2010eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 2011eb36a88eSGerd Hoffmann 2012f1ae32a1SGerd Hoffmann ehci_execute_complete(q); 2013f1ae32a1SGerd Hoffmann 2014cae5d3f4SHans de Goede /* 4.10.3 */ 2015cae5d3f4SHans de Goede if (!q->async && q->transact_ctr > 0) { 2016cae5d3f4SHans de Goede q->transact_ctr--; 2017f1ae32a1SGerd Hoffmann } 2018f1ae32a1SGerd Hoffmann 2019f1ae32a1SGerd Hoffmann /* 4.10.5 */ 2020e696b1daSHans de Goede if (p->packet.status == USB_RET_NAK) { 2021ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 2022f1ae32a1SGerd Hoffmann } else { 2023ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_WRITEBACK); 2024f1ae32a1SGerd Hoffmann } 2025f1ae32a1SGerd Hoffmann 2026f1ae32a1SGerd Hoffmann ehci_flush_qh(q); 2027574ef171SHans de Goede return 1; 2028f1ae32a1SGerd Hoffmann } 2029f1ae32a1SGerd Hoffmann 2030f1ae32a1SGerd Hoffmann 2031ae0138a8SGerd Hoffmann static int ehci_state_writeback(EHCIQueue *q) 2032f1ae32a1SGerd Hoffmann { 2033eb36a88eSGerd Hoffmann EHCIPacket *p = QTAILQ_FIRST(&q->packets); 20344ed1c57aSGerd Hoffmann uint32_t *qtd, addr; 2035f1ae32a1SGerd Hoffmann int again = 0; 2036f1ae32a1SGerd Hoffmann 2037f1ae32a1SGerd Hoffmann /* Write back the QTD from the QH area */ 2038eb36a88eSGerd Hoffmann assert(p != NULL); 2039eb36a88eSGerd Hoffmann assert(p->qtdaddr == q->qtdaddr); 2040eb36a88eSGerd Hoffmann 2041eb36a88eSGerd Hoffmann ehci_trace_qtd(q, NLPTR_GET(p->qtdaddr), (EHCIqtd *) &q->qh.next_qtd); 20424ed1c57aSGerd Hoffmann qtd = (uint32_t *) &q->qh.next_qtd; 20434ed1c57aSGerd Hoffmann addr = NLPTR_GET(p->qtdaddr); 20444ed1c57aSGerd Hoffmann put_dwords(q->ehci, addr + 2 * sizeof(uint32_t), qtd + 2, 2); 2045eb36a88eSGerd Hoffmann ehci_free_packet(p); 2046f1ae32a1SGerd Hoffmann 2047f1ae32a1SGerd Hoffmann /* 2048f1ae32a1SGerd Hoffmann * EHCI specs say go horizontal here. 2049f1ae32a1SGerd Hoffmann * 2050f1ae32a1SGerd Hoffmann * We can also advance the queue here for performance reasons. We 2051f1ae32a1SGerd Hoffmann * need to take care to only take that shortcut in case we've 2052f1ae32a1SGerd Hoffmann * processed the qtd just written back without errors, i.e. halt 2053f1ae32a1SGerd Hoffmann * bit is clear. 2054f1ae32a1SGerd Hoffmann */ 2055f1ae32a1SGerd Hoffmann if (q->qh.token & QTD_TOKEN_HALT) { 2056ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); 2057f1ae32a1SGerd Hoffmann again = 1; 2058f1ae32a1SGerd Hoffmann } else { 2059ae0138a8SGerd Hoffmann ehci_set_state(q->ehci, q->async, EST_ADVANCEQUEUE); 2060f1ae32a1SGerd Hoffmann again = 1; 2061f1ae32a1SGerd Hoffmann } 2062f1ae32a1SGerd Hoffmann return again; 2063f1ae32a1SGerd Hoffmann } 2064f1ae32a1SGerd Hoffmann 2065f1ae32a1SGerd Hoffmann /* 2066f1ae32a1SGerd Hoffmann * This is the state machine that is common to both async and periodic 2067f1ae32a1SGerd Hoffmann */ 2068f1ae32a1SGerd Hoffmann 2069ae0138a8SGerd Hoffmann static void ehci_advance_state(EHCIState *ehci, int async) 2070f1ae32a1SGerd Hoffmann { 2071f1ae32a1SGerd Hoffmann EHCIQueue *q = NULL; 2072f1ae32a1SGerd Hoffmann int again; 2073f1ae32a1SGerd Hoffmann 2074f1ae32a1SGerd Hoffmann do { 2075f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2076f1ae32a1SGerd Hoffmann case EST_WAITLISTHEAD: 2077f1ae32a1SGerd Hoffmann again = ehci_state_waitlisthead(ehci, async); 2078f1ae32a1SGerd Hoffmann break; 2079f1ae32a1SGerd Hoffmann 2080f1ae32a1SGerd Hoffmann case EST_FETCHENTRY: 2081f1ae32a1SGerd Hoffmann again = ehci_state_fetchentry(ehci, async); 2082f1ae32a1SGerd Hoffmann break; 2083f1ae32a1SGerd Hoffmann 2084f1ae32a1SGerd Hoffmann case EST_FETCHQH: 2085f1ae32a1SGerd Hoffmann q = ehci_state_fetchqh(ehci, async); 2086ae0138a8SGerd Hoffmann if (q != NULL) { 2087ae0138a8SGerd Hoffmann assert(q->async == async); 2088ae0138a8SGerd Hoffmann again = 1; 2089ae0138a8SGerd Hoffmann } else { 2090ae0138a8SGerd Hoffmann again = 0; 2091ae0138a8SGerd Hoffmann } 2092f1ae32a1SGerd Hoffmann break; 2093f1ae32a1SGerd Hoffmann 2094f1ae32a1SGerd Hoffmann case EST_FETCHITD: 2095f1ae32a1SGerd Hoffmann again = ehci_state_fetchitd(ehci, async); 2096f1ae32a1SGerd Hoffmann break; 2097f1ae32a1SGerd Hoffmann 2098f1ae32a1SGerd Hoffmann case EST_FETCHSITD: 2099f1ae32a1SGerd Hoffmann again = ehci_state_fetchsitd(ehci, async); 2100f1ae32a1SGerd Hoffmann break; 2101f1ae32a1SGerd Hoffmann 2102f1ae32a1SGerd Hoffmann case EST_ADVANCEQUEUE: 2103cc8d2b65SMarkus Armbruster assert(q != NULL); 2104ae0138a8SGerd Hoffmann again = ehci_state_advqueue(q); 2105f1ae32a1SGerd Hoffmann break; 2106f1ae32a1SGerd Hoffmann 2107f1ae32a1SGerd Hoffmann case EST_FETCHQTD: 2108cc8d2b65SMarkus Armbruster assert(q != NULL); 2109ae0138a8SGerd Hoffmann again = ehci_state_fetchqtd(q); 2110f1ae32a1SGerd Hoffmann break; 2111f1ae32a1SGerd Hoffmann 2112f1ae32a1SGerd Hoffmann case EST_HORIZONTALQH: 2113cc8d2b65SMarkus Armbruster assert(q != NULL); 2114ae0138a8SGerd Hoffmann again = ehci_state_horizqh(q); 2115f1ae32a1SGerd Hoffmann break; 2116f1ae32a1SGerd Hoffmann 2117f1ae32a1SGerd Hoffmann case EST_EXECUTE: 2118cc8d2b65SMarkus Armbruster assert(q != NULL); 2119ae0138a8SGerd Hoffmann again = ehci_state_execute(q); 21203a215326SGerd Hoffmann if (async) { 21213a215326SGerd Hoffmann ehci->async_stepdown = 0; 21223a215326SGerd Hoffmann } 2123f1ae32a1SGerd Hoffmann break; 2124f1ae32a1SGerd Hoffmann 2125f1ae32a1SGerd Hoffmann case EST_EXECUTING: 2126f1ae32a1SGerd Hoffmann assert(q != NULL); 21273a215326SGerd Hoffmann if (async) { 21283a215326SGerd Hoffmann ehci->async_stepdown = 0; 21293a215326SGerd Hoffmann } 2130ae0138a8SGerd Hoffmann again = ehci_state_executing(q); 2131f1ae32a1SGerd Hoffmann break; 2132f1ae32a1SGerd Hoffmann 2133f1ae32a1SGerd Hoffmann case EST_WRITEBACK: 2134f1ae32a1SGerd Hoffmann assert(q != NULL); 2135ae0138a8SGerd Hoffmann again = ehci_state_writeback(q); 213680826240SHans de Goede if (!async) { 213780826240SHans de Goede ehci->periodic_sched_active = PERIODIC_ACTIVE; 213880826240SHans de Goede } 2139f1ae32a1SGerd Hoffmann break; 2140f1ae32a1SGerd Hoffmann 2141f1ae32a1SGerd Hoffmann default: 2142f1ae32a1SGerd Hoffmann fprintf(stderr, "Bad state!\n"); 2143f1ae32a1SGerd Hoffmann again = -1; 2144dfc6f865SStefan Weil g_assert_not_reached(); 2145f1ae32a1SGerd Hoffmann break; 2146f1ae32a1SGerd Hoffmann } 2147f1ae32a1SGerd Hoffmann 2148f1ae32a1SGerd Hoffmann if (again < 0) { 2149f1ae32a1SGerd Hoffmann fprintf(stderr, "processing error - resetting ehci HC\n"); 2150f1ae32a1SGerd Hoffmann ehci_reset(ehci); 2151f1ae32a1SGerd Hoffmann again = 0; 2152f1ae32a1SGerd Hoffmann } 2153f1ae32a1SGerd Hoffmann } 2154f1ae32a1SGerd Hoffmann while (again); 2155f1ae32a1SGerd Hoffmann } 2156f1ae32a1SGerd Hoffmann 2157f1ae32a1SGerd Hoffmann static void ehci_advance_async_state(EHCIState *ehci) 2158f1ae32a1SGerd Hoffmann { 2159f1ae32a1SGerd Hoffmann const int async = 1; 2160f1ae32a1SGerd Hoffmann 2161f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2162f1ae32a1SGerd Hoffmann case EST_INACTIVE: 2163ec807d12SGerd Hoffmann if (!ehci_async_enabled(ehci)) { 2164f1ae32a1SGerd Hoffmann break; 2165f1ae32a1SGerd Hoffmann } 2166f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 2167f1ae32a1SGerd Hoffmann // No break, fall through to ACTIVE 2168f1ae32a1SGerd Hoffmann 2169f1ae32a1SGerd Hoffmann case EST_ACTIVE: 2170ec807d12SGerd Hoffmann if (!ehci_async_enabled(ehci)) { 2171f1ae32a1SGerd Hoffmann ehci_queues_rip_all(ehci, async); 2172f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_INACTIVE); 2173f1ae32a1SGerd Hoffmann break; 2174f1ae32a1SGerd Hoffmann } 2175f1ae32a1SGerd Hoffmann 2176f1ae32a1SGerd Hoffmann /* make sure guest has acknowledged the doorbell interrupt */ 2177f1ae32a1SGerd Hoffmann /* TO-DO: is this really needed? */ 2178f1ae32a1SGerd Hoffmann if (ehci->usbsts & USBSTS_IAA) { 2179f1ae32a1SGerd Hoffmann DPRINTF("IAA status bit still set.\n"); 2180f1ae32a1SGerd Hoffmann break; 2181f1ae32a1SGerd Hoffmann } 2182f1ae32a1SGerd Hoffmann 2183f1ae32a1SGerd Hoffmann /* check that address register has been set */ 2184f1ae32a1SGerd Hoffmann if (ehci->asynclistaddr == 0) { 2185f1ae32a1SGerd Hoffmann break; 2186f1ae32a1SGerd Hoffmann } 2187f1ae32a1SGerd Hoffmann 2188f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_WAITLISTHEAD); 2189f1ae32a1SGerd Hoffmann ehci_advance_state(ehci, async); 2190f1ae32a1SGerd Hoffmann 2191f1ae32a1SGerd Hoffmann /* If the doorbell is set, the guest wants to make a change to the 2192f1ae32a1SGerd Hoffmann * schedule. The host controller needs to release cached data. 2193f1ae32a1SGerd Hoffmann * (section 4.8.2) 2194f1ae32a1SGerd Hoffmann */ 2195f1ae32a1SGerd Hoffmann if (ehci->usbcmd & USBCMD_IAAD) { 2196f1ae32a1SGerd Hoffmann /* Remove all unseen qhs from the async qhs queue */ 21978f5457ebSHans de Goede ehci_queues_rip_unseen(ehci, async); 21981defcbd1SGerd Hoffmann trace_usb_ehci_doorbell_ack(); 2199f1ae32a1SGerd Hoffmann ehci->usbcmd &= ~USBCMD_IAAD; 22007efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_IAA); 2201f1ae32a1SGerd Hoffmann } 2202f1ae32a1SGerd Hoffmann break; 2203f1ae32a1SGerd Hoffmann 2204f1ae32a1SGerd Hoffmann default: 2205f1ae32a1SGerd Hoffmann /* this should only be due to a developer mistake */ 2206f1ae32a1SGerd Hoffmann fprintf(stderr, "ehci: Bad asynchronous state %d. " 2207f1ae32a1SGerd Hoffmann "Resetting to active\n", ehci->astate); 2208dfc6f865SStefan Weil g_assert_not_reached(); 2209f1ae32a1SGerd Hoffmann } 2210f1ae32a1SGerd Hoffmann } 2211f1ae32a1SGerd Hoffmann 2212f1ae32a1SGerd Hoffmann static void ehci_advance_periodic_state(EHCIState *ehci) 2213f1ae32a1SGerd Hoffmann { 2214f1ae32a1SGerd Hoffmann uint32_t entry; 2215f1ae32a1SGerd Hoffmann uint32_t list; 2216f1ae32a1SGerd Hoffmann const int async = 0; 2217f1ae32a1SGerd Hoffmann 2218f1ae32a1SGerd Hoffmann // 4.6 2219f1ae32a1SGerd Hoffmann 2220f1ae32a1SGerd Hoffmann switch(ehci_get_state(ehci, async)) { 2221f1ae32a1SGerd Hoffmann case EST_INACTIVE: 2222ec807d12SGerd Hoffmann if (!(ehci->frindex & 7) && ehci_periodic_enabled(ehci)) { 2223f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_ACTIVE); 2224f1ae32a1SGerd Hoffmann // No break, fall through to ACTIVE 2225f1ae32a1SGerd Hoffmann } else 2226f1ae32a1SGerd Hoffmann break; 2227f1ae32a1SGerd Hoffmann 2228f1ae32a1SGerd Hoffmann case EST_ACTIVE: 2229ec807d12SGerd Hoffmann if (!(ehci->frindex & 7) && !ehci_periodic_enabled(ehci)) { 2230f1ae32a1SGerd Hoffmann ehci_queues_rip_all(ehci, async); 2231f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_INACTIVE); 2232f1ae32a1SGerd Hoffmann break; 2233f1ae32a1SGerd Hoffmann } 2234f1ae32a1SGerd Hoffmann 2235f1ae32a1SGerd Hoffmann list = ehci->periodiclistbase & 0xfffff000; 2236f1ae32a1SGerd Hoffmann /* check that register has been set */ 2237f1ae32a1SGerd Hoffmann if (list == 0) { 2238f1ae32a1SGerd Hoffmann break; 2239f1ae32a1SGerd Hoffmann } 2240f1ae32a1SGerd Hoffmann list |= ((ehci->frindex & 0x1ff8) >> 1); 2241f1ae32a1SGerd Hoffmann 224255903f1dSGerd Hoffmann if (get_dwords(ehci, list, &entry, 1) < 0) { 224355903f1dSGerd Hoffmann break; 224455903f1dSGerd Hoffmann } 2245f1ae32a1SGerd Hoffmann 2246f1ae32a1SGerd Hoffmann DPRINTF("PERIODIC state adv fr=%d. [%08X] -> %08X\n", 2247f1ae32a1SGerd Hoffmann ehci->frindex / 8, list, entry); 2248f1ae32a1SGerd Hoffmann ehci_set_fetch_addr(ehci, async,entry); 2249f1ae32a1SGerd Hoffmann ehci_set_state(ehci, async, EST_FETCHENTRY); 2250f1ae32a1SGerd Hoffmann ehci_advance_state(ehci, async); 22518f5457ebSHans de Goede ehci_queues_rip_unused(ehci, async); 2252f1ae32a1SGerd Hoffmann break; 2253f1ae32a1SGerd Hoffmann 2254f1ae32a1SGerd Hoffmann default: 2255f1ae32a1SGerd Hoffmann /* this should only be due to a developer mistake */ 2256f1ae32a1SGerd Hoffmann fprintf(stderr, "ehci: Bad periodic state %d. " 2257f1ae32a1SGerd Hoffmann "Resetting to active\n", ehci->pstate); 2258dfc6f865SStefan Weil g_assert_not_reached(); 2259f1ae32a1SGerd Hoffmann } 2260f1ae32a1SGerd Hoffmann } 2261f1ae32a1SGerd Hoffmann 22629359a58bSHans de Goede static void ehci_update_frindex(EHCIState *ehci, int uframes) 22636ceced0bSGerd Hoffmann { 22646ceced0bSGerd Hoffmann int i; 22656ceced0bSGerd Hoffmann 22669359a58bSHans de Goede if (!ehci_enabled(ehci) && ehci->pstate == EST_INACTIVE) { 22676ceced0bSGerd Hoffmann return; 22686ceced0bSGerd Hoffmann } 22696ceced0bSGerd Hoffmann 22709359a58bSHans de Goede for (i = 0; i < uframes; i++) { 22719359a58bSHans de Goede ehci->frindex++; 22726ceced0bSGerd Hoffmann 22736ceced0bSGerd Hoffmann if (ehci->frindex == 0x00002000) { 22747efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_FLR); 22756ceced0bSGerd Hoffmann } 22766ceced0bSGerd Hoffmann 22776ceced0bSGerd Hoffmann if (ehci->frindex == 0x00004000) { 22787efc17afSGerd Hoffmann ehci_raise_irq(ehci, USBSTS_FLR); 22796ceced0bSGerd Hoffmann ehci->frindex = 0; 2280ffa1f2e0SHans de Goede if (ehci->usbsts_frindex >= 0x00004000) { 22817efc17afSGerd Hoffmann ehci->usbsts_frindex -= 0x00004000; 22827efc17afSGerd Hoffmann } else { 22837efc17afSGerd Hoffmann ehci->usbsts_frindex = 0; 22847efc17afSGerd Hoffmann } 22856ceced0bSGerd Hoffmann } 22866ceced0bSGerd Hoffmann } 22876ceced0bSGerd Hoffmann } 22886ceced0bSGerd Hoffmann 2289f1ae32a1SGerd Hoffmann static void ehci_frame_timer(void *opaque) 2290f1ae32a1SGerd Hoffmann { 2291f1ae32a1SGerd Hoffmann EHCIState *ehci = opaque; 22927efc17afSGerd Hoffmann int need_timer = 0; 2293f1ae32a1SGerd Hoffmann int64_t expire_time, t_now; 2294f1ae32a1SGerd Hoffmann uint64_t ns_elapsed; 22959359a58bSHans de Goede int uframes, skipped_uframes; 2296f1ae32a1SGerd Hoffmann int i; 2297f1ae32a1SGerd Hoffmann 2298bc72ad67SAlex Bligh t_now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 2299f1ae32a1SGerd Hoffmann ns_elapsed = t_now - ehci->last_run_ns; 23009359a58bSHans de Goede uframes = ns_elapsed / UFRAME_TIMER_NS; 2301f1ae32a1SGerd Hoffmann 23023a215326SGerd Hoffmann if (ehci_periodic_enabled(ehci) || ehci->pstate != EST_INACTIVE) { 23037efc17afSGerd Hoffmann need_timer++; 23043a215326SGerd Hoffmann 23059359a58bSHans de Goede if (uframes > (ehci->maxframes * 8)) { 23069359a58bSHans de Goede skipped_uframes = uframes - (ehci->maxframes * 8); 23079359a58bSHans de Goede ehci_update_frindex(ehci, skipped_uframes); 23089359a58bSHans de Goede ehci->last_run_ns += UFRAME_TIMER_NS * skipped_uframes; 23099359a58bSHans de Goede uframes -= skipped_uframes; 23109359a58bSHans de Goede DPRINTF("WARNING - EHCI skipped %d uframes\n", skipped_uframes); 2311f1ae32a1SGerd Hoffmann } 2312f1ae32a1SGerd Hoffmann 23139359a58bSHans de Goede for (i = 0; i < uframes; i++) { 23148f74ed1eSHans de Goede /* 23158f74ed1eSHans de Goede * If we're running behind schedule, we should not catch up 23168f74ed1eSHans de Goede * too fast, as that will make some guests unhappy: 23179359a58bSHans de Goede * 1) We must process a minimum of MIN_UFR_PER_TICK frames, 23188f74ed1eSHans de Goede * otherwise we will never catch up 23198f74ed1eSHans de Goede * 2) Process frames until the guest has requested an irq (IOC) 23208f74ed1eSHans de Goede */ 23219359a58bSHans de Goede if (i >= MIN_UFR_PER_TICK) { 23228f74ed1eSHans de Goede ehci_commit_irq(ehci); 23238f74ed1eSHans de Goede if ((ehci->usbsts & USBINTR_MASK) & ehci->usbintr) { 23248f74ed1eSHans de Goede break; 23258f74ed1eSHans de Goede } 23268f74ed1eSHans de Goede } 232780826240SHans de Goede if (ehci->periodic_sched_active) { 232880826240SHans de Goede ehci->periodic_sched_active--; 232980826240SHans de Goede } 2330f020ed36SGerd Hoffmann ehci_update_frindex(ehci, 1); 23319359a58bSHans de Goede if ((ehci->frindex & 7) == 0) { 2332f020ed36SGerd Hoffmann ehci_advance_periodic_state(ehci); 23339359a58bSHans de Goede } 23349359a58bSHans de Goede ehci->last_run_ns += UFRAME_TIMER_NS; 2335f1ae32a1SGerd Hoffmann } 23363a215326SGerd Hoffmann } else { 233780826240SHans de Goede ehci->periodic_sched_active = 0; 23389359a58bSHans de Goede ehci_update_frindex(ehci, uframes); 23399359a58bSHans de Goede ehci->last_run_ns += UFRAME_TIMER_NS * uframes; 23403a215326SGerd Hoffmann } 2341f1ae32a1SGerd Hoffmann 234280826240SHans de Goede if (ehci->periodic_sched_active) { 234380826240SHans de Goede ehci->async_stepdown = 0; 234480826240SHans de Goede } else if (ehci->async_stepdown < ehci->maxframes / 2) { 234580826240SHans de Goede ehci->async_stepdown++; 234680826240SHans de Goede } 234780826240SHans de Goede 2348f1ae32a1SGerd Hoffmann /* Async is not inside loop since it executes everything it can once 2349f1ae32a1SGerd Hoffmann * called 2350f1ae32a1SGerd Hoffmann */ 23513a215326SGerd Hoffmann if (ehci_async_enabled(ehci) || ehci->astate != EST_INACTIVE) { 23527efc17afSGerd Hoffmann need_timer++; 2353afb7a0b8SGerd Hoffmann ehci_advance_async_state(ehci); 23543a215326SGerd Hoffmann } 2355f1ae32a1SGerd Hoffmann 23567efc17afSGerd Hoffmann ehci_commit_irq(ehci); 23577efc17afSGerd Hoffmann if (ehci->usbsts_pending) { 23587efc17afSGerd Hoffmann need_timer++; 23597efc17afSGerd Hoffmann ehci->async_stepdown = 0; 2360f1ae32a1SGerd Hoffmann } 2361f0ad01f9SGerd Hoffmann 236240862309SGerd Hoffmann if (ehci_enabled(ehci) && (ehci->usbintr & USBSTS_FLR)) { 236340862309SGerd Hoffmann need_timer++; 236440862309SGerd Hoffmann } 236540862309SGerd Hoffmann 23667efc17afSGerd Hoffmann if (need_timer) { 236744272b0fSHans de Goede /* If we've raised int, we speed up the timer, so that we quickly 236844272b0fSHans de Goede * notice any new packets queued up in response */ 236944272b0fSHans de Goede if (ehci->int_req_by_async && (ehci->usbsts & USBSTS_INT)) { 237052c15e59SHans de Goede expire_time = t_now + get_ticks_per_sec() / (FRAME_TIMER_FREQ * 4); 237144272b0fSHans de Goede ehci->int_req_by_async = false; 237244272b0fSHans de Goede } else { 2373afb7a0b8SGerd Hoffmann expire_time = t_now + (get_ticks_per_sec() 2374afb7a0b8SGerd Hoffmann * (ehci->async_stepdown+1) / FRAME_TIMER_FREQ); 237544272b0fSHans de Goede } 2376bc72ad67SAlex Bligh timer_mod(ehci->frame_timer, expire_time); 23777efc17afSGerd Hoffmann } 2378daf25307SGerd Hoffmann } 2379f1ae32a1SGerd Hoffmann 23803e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_caps_ops = { 23813e4f910cSGerd Hoffmann .read = ehci_caps_read, 23823e4f910cSGerd Hoffmann .valid.min_access_size = 1, 23833e4f910cSGerd Hoffmann .valid.max_access_size = 4, 23843e4f910cSGerd Hoffmann .impl.min_access_size = 1, 23853e4f910cSGerd Hoffmann .impl.max_access_size = 1, 23863e4f910cSGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 23873e4f910cSGerd Hoffmann }; 23883e4f910cSGerd Hoffmann 23893e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_opreg_ops = { 23903e4f910cSGerd Hoffmann .read = ehci_opreg_read, 23913e4f910cSGerd Hoffmann .write = ehci_opreg_write, 23923e4f910cSGerd Hoffmann .valid.min_access_size = 4, 23933e4f910cSGerd Hoffmann .valid.max_access_size = 4, 23943e4f910cSGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 23953e4f910cSGerd Hoffmann }; 23963e4f910cSGerd Hoffmann 23973e4f910cSGerd Hoffmann static const MemoryRegionOps ehci_mmio_port_ops = { 23983e4f910cSGerd Hoffmann .read = ehci_port_read, 23993e4f910cSGerd Hoffmann .write = ehci_port_write, 24003e4f910cSGerd Hoffmann .valid.min_access_size = 4, 24013e4f910cSGerd Hoffmann .valid.max_access_size = 4, 2402f1ae32a1SGerd Hoffmann .endianness = DEVICE_LITTLE_ENDIAN, 2403f1ae32a1SGerd Hoffmann }; 2404f1ae32a1SGerd Hoffmann 2405f1ae32a1SGerd Hoffmann static USBPortOps ehci_port_ops = { 2406f1ae32a1SGerd Hoffmann .attach = ehci_attach, 2407f1ae32a1SGerd Hoffmann .detach = ehci_detach, 2408f1ae32a1SGerd Hoffmann .child_detach = ehci_child_detach, 2409f1ae32a1SGerd Hoffmann .wakeup = ehci_wakeup, 2410f1ae32a1SGerd Hoffmann .complete = ehci_async_complete_packet, 2411f1ae32a1SGerd Hoffmann }; 2412f1ae32a1SGerd Hoffmann 2413f1ae32a1SGerd Hoffmann static USBBusOps ehci_bus_ops = { 2414f1ae32a1SGerd Hoffmann .register_companion = ehci_register_companion, 241580826240SHans de Goede .wakeup_endpoint = ehci_wakeup_endpoint, 2416f1ae32a1SGerd Hoffmann }; 2417f1ae32a1SGerd Hoffmann 24189359a58bSHans de Goede static void usb_ehci_pre_save(void *opaque) 24199359a58bSHans de Goede { 24209359a58bSHans de Goede EHCIState *ehci = opaque; 24219359a58bSHans de Goede uint32_t new_frindex; 24229359a58bSHans de Goede 24239359a58bSHans de Goede /* Round down frindex to a multiple of 8 for migration compatibility */ 24249359a58bSHans de Goede new_frindex = ehci->frindex & ~7; 24259359a58bSHans de Goede ehci->last_run_ns -= (ehci->frindex - new_frindex) * UFRAME_TIMER_NS; 24269359a58bSHans de Goede ehci->frindex = new_frindex; 24279359a58bSHans de Goede } 24289359a58bSHans de Goede 24299a773408SGerd Hoffmann static int usb_ehci_post_load(void *opaque, int version_id) 24309a773408SGerd Hoffmann { 24319a773408SGerd Hoffmann EHCIState *s = opaque; 24329a773408SGerd Hoffmann int i; 24339a773408SGerd Hoffmann 24349a773408SGerd Hoffmann for (i = 0; i < NB_PORTS; i++) { 24359a773408SGerd Hoffmann USBPort *companion = s->companion_ports[i]; 24369a773408SGerd Hoffmann if (companion == NULL) { 24379a773408SGerd Hoffmann continue; 24389a773408SGerd Hoffmann } 24399a773408SGerd Hoffmann if (s->portsc[i] & PORTSC_POWNER) { 24409a773408SGerd Hoffmann companion->dev = s->ports[i].dev; 24419a773408SGerd Hoffmann } else { 24429a773408SGerd Hoffmann companion->dev = NULL; 24439a773408SGerd Hoffmann } 24449a773408SGerd Hoffmann } 24459a773408SGerd Hoffmann 24469a773408SGerd Hoffmann return 0; 24479a773408SGerd Hoffmann } 24489a773408SGerd Hoffmann 2449ceab6f96SHans de Goede static void usb_ehci_vm_state_change(void *opaque, int running, RunState state) 2450ceab6f96SHans de Goede { 2451ceab6f96SHans de Goede EHCIState *ehci = opaque; 2452ceab6f96SHans de Goede 2453ceab6f96SHans de Goede /* 2454ceab6f96SHans de Goede * We don't migrate the EHCIQueue-s, instead we rebuild them for the 2455ceab6f96SHans de Goede * schedule in guest memory. We must do the rebuilt ASAP, so that 2456ceab6f96SHans de Goede * USB-devices which have async handled packages have a packet in the 2457ceab6f96SHans de Goede * ep queue to match the completion with. 2458ceab6f96SHans de Goede */ 2459ceab6f96SHans de Goede if (state == RUN_STATE_RUNNING) { 2460ceab6f96SHans de Goede ehci_advance_async_state(ehci); 2461ceab6f96SHans de Goede } 2462ceab6f96SHans de Goede 2463ceab6f96SHans de Goede /* 2464ceab6f96SHans de Goede * The schedule rebuilt from guest memory could cause the migration dest 2465ceab6f96SHans de Goede * to miss a QH unlink, and fail to cancel packets, since the unlinked QH 2466ceab6f96SHans de Goede * will never have existed on the destination. Therefor we must flush the 2467ceab6f96SHans de Goede * async schedule on savevm to catch any not yet noticed unlinks. 2468ceab6f96SHans de Goede */ 2469ceab6f96SHans de Goede if (state == RUN_STATE_SAVE_VM) { 2470ceab6f96SHans de Goede ehci_advance_async_state(ehci); 2471ceab6f96SHans de Goede ehci_queues_rip_unseen(ehci, 1); 2472ceab6f96SHans de Goede } 2473ceab6f96SHans de Goede } 2474ceab6f96SHans de Goede 24750bf96f94SGerd Hoffmann const VMStateDescription vmstate_ehci = { 24765010d4dcSPeter Crosthwaite .name = "ehci-core", 24776d3b6d3dSGerd Hoffmann .version_id = 2, 24786d3b6d3dSGerd Hoffmann .minimum_version_id = 1, 24799359a58bSHans de Goede .pre_save = usb_ehci_pre_save, 24809a773408SGerd Hoffmann .post_load = usb_ehci_post_load, 24819a773408SGerd Hoffmann .fields = (VMStateField[]) { 24829a773408SGerd Hoffmann /* mmio registers */ 24839a773408SGerd Hoffmann VMSTATE_UINT32(usbcmd, EHCIState), 24849a773408SGerd Hoffmann VMSTATE_UINT32(usbsts, EHCIState), 24856d3b6d3dSGerd Hoffmann VMSTATE_UINT32_V(usbsts_pending, EHCIState, 2), 24866d3b6d3dSGerd Hoffmann VMSTATE_UINT32_V(usbsts_frindex, EHCIState, 2), 24879a773408SGerd Hoffmann VMSTATE_UINT32(usbintr, EHCIState), 24889a773408SGerd Hoffmann VMSTATE_UINT32(frindex, EHCIState), 24899a773408SGerd Hoffmann VMSTATE_UINT32(ctrldssegment, EHCIState), 24909a773408SGerd Hoffmann VMSTATE_UINT32(periodiclistbase, EHCIState), 24919a773408SGerd Hoffmann VMSTATE_UINT32(asynclistaddr, EHCIState), 24929a773408SGerd Hoffmann VMSTATE_UINT32(configflag, EHCIState), 24939a773408SGerd Hoffmann VMSTATE_UINT32(portsc[0], EHCIState), 24949a773408SGerd Hoffmann VMSTATE_UINT32(portsc[1], EHCIState), 24959a773408SGerd Hoffmann VMSTATE_UINT32(portsc[2], EHCIState), 24969a773408SGerd Hoffmann VMSTATE_UINT32(portsc[3], EHCIState), 24979a773408SGerd Hoffmann VMSTATE_UINT32(portsc[4], EHCIState), 24989a773408SGerd Hoffmann VMSTATE_UINT32(portsc[5], EHCIState), 24999a773408SGerd Hoffmann /* frame timer */ 25009a773408SGerd Hoffmann VMSTATE_TIMER(frame_timer, EHCIState), 25019a773408SGerd Hoffmann VMSTATE_UINT64(last_run_ns, EHCIState), 25029a773408SGerd Hoffmann VMSTATE_UINT32(async_stepdown, EHCIState), 25039a773408SGerd Hoffmann /* schedule state */ 25049a773408SGerd Hoffmann VMSTATE_UINT32(astate, EHCIState), 25059a773408SGerd Hoffmann VMSTATE_UINT32(pstate, EHCIState), 25069a773408SGerd Hoffmann VMSTATE_UINT32(a_fetch_addr, EHCIState), 25079a773408SGerd Hoffmann VMSTATE_UINT32(p_fetch_addr, EHCIState), 25089a773408SGerd Hoffmann VMSTATE_END_OF_LIST() 25099a773408SGerd Hoffmann } 2510f1ae32a1SGerd Hoffmann }; 2511f1ae32a1SGerd Hoffmann 251208f4c90bSAndreas Färber void usb_ehci_realize(EHCIState *s, DeviceState *dev, Error **errp) 2513f1ae32a1SGerd Hoffmann { 2514f1ae32a1SGerd Hoffmann int i; 2515f1ae32a1SGerd Hoffmann 2516cc8d6a84SKuo-Jung Su if (s->portnr > NB_PORTS) { 2517cc8d6a84SKuo-Jung Su error_setg(errp, "Too many ports! Max. port number is %d.", 2518cc8d6a84SKuo-Jung Su NB_PORTS); 2519cc8d6a84SKuo-Jung Su return; 2520cc8d6a84SKuo-Jung Su } 2521cc8d6a84SKuo-Jung Su 2522c889b3a5SAndreas Färber usb_bus_new(&s->bus, sizeof(s->bus), &ehci_bus_ops, dev); 2523cc8d6a84SKuo-Jung Su for (i = 0; i < s->portnr; i++) { 2524d4614cc3SAndreas Färber usb_register_port(&s->bus, &s->ports[i], s, i, &ehci_port_ops, 2525d4614cc3SAndreas Färber USB_SPEED_MASK_HIGH); 2526d4614cc3SAndreas Färber s->ports[i].dev = 0; 2527d4614cc3SAndreas Färber } 2528d4614cc3SAndreas Färber 2529bc72ad67SAlex Bligh s->frame_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, ehci_frame_timer, s); 2530d4614cc3SAndreas Färber s->async_bh = qemu_bh_new(ehci_frame_timer, s); 2531adbecc89SGerd Hoffmann s->device = dev; 2532d4614cc3SAndreas Färber 2533d4614cc3SAndreas Färber qemu_register_reset(ehci_reset, s); 2534d4614cc3SAndreas Färber qemu_add_vm_change_state_handler(usb_ehci_vm_state_change, s); 2535d4614cc3SAndreas Färber } 2536d4614cc3SAndreas Färber 2537d4614cc3SAndreas Färber void usb_ehci_init(EHCIState *s, DeviceState *dev) 2538d4614cc3SAndreas Färber { 25393e4f910cSGerd Hoffmann /* 2.2 host controller interface version */ 254027a11324SPeter Crosthwaite s->caps[0x00] = (uint8_t)(s->opregbase - s->capsbase); 25413e4f910cSGerd Hoffmann s->caps[0x01] = 0x00; 25423e4f910cSGerd Hoffmann s->caps[0x02] = 0x00; 25433e4f910cSGerd Hoffmann s->caps[0x03] = 0x01; /* HC version */ 2544cc8d6a84SKuo-Jung Su s->caps[0x04] = s->portnr; /* Number of downstream ports */ 25453e4f910cSGerd Hoffmann s->caps[0x05] = 0x00; /* No companion ports at present */ 25463e4f910cSGerd Hoffmann s->caps[0x06] = 0x00; 25473e4f910cSGerd Hoffmann s->caps[0x07] = 0x00; 25483e4f910cSGerd Hoffmann s->caps[0x08] = 0x80; /* We can cache whole frame, no 64-bit */ 25493e4f910cSGerd Hoffmann s->caps[0x0a] = 0x00; 25503e4f910cSGerd Hoffmann s->caps[0x0b] = 0x00; 2551f1ae32a1SGerd Hoffmann 2552f1ae32a1SGerd Hoffmann QTAILQ_INIT(&s->aqueues); 2553f1ae32a1SGerd Hoffmann QTAILQ_INIT(&s->pqueues); 25547341ea07SHans de Goede usb_packet_init(&s->ipacket); 2555f1ae32a1SGerd Hoffmann 255622fc860bSPaolo Bonzini memory_region_init(&s->mem, OBJECT(dev), "ehci", MMIO_SIZE); 255722fc860bSPaolo Bonzini memory_region_init_io(&s->mem_caps, OBJECT(dev), &ehci_mmio_caps_ops, s, 255827a11324SPeter Crosthwaite "capabilities", CAPA_SIZE); 255922fc860bSPaolo Bonzini memory_region_init_io(&s->mem_opreg, OBJECT(dev), &ehci_mmio_opreg_ops, s, 2560cc8d6a84SKuo-Jung Su "operational", s->portscbase); 256122fc860bSPaolo Bonzini memory_region_init_io(&s->mem_ports, OBJECT(dev), &ehci_mmio_port_ops, s, 2562cc8d6a84SKuo-Jung Su "ports", 4 * s->portnr); 25633e4f910cSGerd Hoffmann 256427a11324SPeter Crosthwaite memory_region_add_subregion(&s->mem, s->capsbase, &s->mem_caps); 256527a11324SPeter Crosthwaite memory_region_add_subregion(&s->mem, s->opregbase, &s->mem_opreg); 2566cc8d6a84SKuo-Jung Su memory_region_add_subregion(&s->mem, s->opregbase + s->portscbase, 256727a11324SPeter Crosthwaite &s->mem_ports); 25685010d4dcSPeter Crosthwaite } 25693e4f910cSGerd Hoffmann 2570f1ae32a1SGerd Hoffmann /* 2571f1ae32a1SGerd Hoffmann * vim: expandtab ts=4 2572f1ae32a1SGerd Hoffmann */ 2573