1 /* $NetBSD: ehcivar.h,v 1.38 2011/01/18 08:29:24 matt Exp $ */ 2 3 /* 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart@augustsson.net). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 typedef struct ehci_soft_qtd { 33 ehci_qtd_t qtd; 34 struct ehci_soft_qtd *nextqtd; /* mirrors nextqtd in TD */ 35 ehci_physaddr_t physaddr; 36 usb_dma_t dma; /* qTD's DMA infos */ 37 int offs; /* qTD's offset in usb_dma_t */ 38 usbd_xfer_handle xfer; 39 LIST_ENTRY(ehci_soft_qtd) hnext; 40 u_int16_t len; 41 } ehci_soft_qtd_t; 42 #define EHCI_SQTD_SIZE ((sizeof (struct ehci_soft_qtd) + EHCI_QTD_ALIGN - 1) / EHCI_QTD_ALIGN * EHCI_QTD_ALIGN) 43 #define EHCI_SQTD_CHUNK (EHCI_PAGE_SIZE / EHCI_SQTD_SIZE) 44 45 typedef struct ehci_soft_qh { 46 ehci_qh_t qh; 47 struct ehci_soft_qh *next; 48 struct ehci_soft_qtd *sqtd; 49 ehci_physaddr_t physaddr; 50 usb_dma_t dma; /* QH's DMA infos */ 51 int offs; /* QH's offset in usb_dma_t */ 52 int islot; 53 } ehci_soft_qh_t; 54 #define EHCI_SQH_SIZE ((sizeof (struct ehci_soft_qh) + EHCI_QH_ALIGN - 1) / EHCI_QH_ALIGN * EHCI_QH_ALIGN) 55 #define EHCI_SQH_CHUNK (EHCI_PAGE_SIZE / EHCI_SQH_SIZE) 56 57 typedef struct ehci_soft_itd { 58 ehci_itd_t itd; 59 union { 60 struct { 61 /* soft_itds links in a periodic frame*/ 62 struct ehci_soft_itd *next; 63 struct ehci_soft_itd *prev; 64 } frame_list; 65 /* circular list of free itds */ 66 LIST_ENTRY(ehci_soft_itd) free_list; 67 } u; 68 struct ehci_soft_itd *xfer_next; /* Next soft_itd in xfer */ 69 ehci_physaddr_t physaddr; 70 usb_dma_t dma; 71 int offs; 72 int slot; 73 struct timeval t; /* store free time */ 74 } ehci_soft_itd_t; 75 #define EHCI_ITD_SIZE ((sizeof(struct ehci_soft_itd) + EHCI_QH_ALIGN - 1) / EHCI_ITD_ALIGN * EHCI_ITD_ALIGN) 76 #define EHCI_ITD_CHUNK (EHCI_PAGE_SIZE / EHCI_ITD_SIZE) 77 78 struct ehci_xfer { 79 struct usbd_xfer xfer; 80 struct usb_task abort_task; 81 TAILQ_ENTRY(ehci_xfer) inext; /* list of active xfers */ 82 ehci_soft_qtd_t *sqtdstart; 83 ehci_soft_qtd_t *sqtdend; 84 ehci_soft_itd_t *itdstart; 85 ehci_soft_itd_t *itdend; 86 u_int isoc_len; 87 int isdone; /* used only when DIAGNOSTIC is defined */ 88 }; 89 #define EXFER(xfer) ((struct ehci_xfer *)(xfer)) 90 91 /* Information about an entry in the interrupt list. */ 92 struct ehci_soft_islot { 93 ehci_soft_qh_t *sqh; /* Queue Head. */ 94 }; 95 96 #define EHCI_FRAMELIST_MAXCOUNT 1024 97 #define EHCI_IPOLLRATES 8 /* Poll rates (1ms, 2, 4, 8 .. 128) */ 98 #define EHCI_INTRQHS ((1 << EHCI_IPOLLRATES) - 1) 99 #define EHCI_MAX_POLLRATE (1 << (EHCI_IPOLLRATES - 1)) 100 #define EHCI_IQHIDX(lev, pos) \ 101 ((((pos) & ((1 << (lev)) - 1)) | (1 << (lev))) - 1) 102 #define EHCI_ILEV_IVAL(lev) (1 << (lev)) 103 104 105 #define EHCI_HASH_SIZE 128 106 #define EHCI_COMPANION_MAX 8 107 108 #define EHCI_FREE_LIST_INTERVAL 100 109 110 typedef struct ehci_softc { 111 device_t sc_dev; 112 struct usbd_bus sc_bus; 113 bus_space_tag_t iot; 114 bus_space_handle_t ioh; 115 bus_size_t sc_size; 116 u_int sc_offs; /* offset to operational regs */ 117 int sc_flags; /* misc flags */ 118 #define EHCIF_DROPPED_INTR_WORKAROUND 0x01 119 #define EHCIF_ETTF 0x02 /* Emb. Transaction Translater func. */ 120 121 char sc_vendor[32]; /* vendor string for root hub */ 122 int sc_id_vendor; /* vendor ID for root hub */ 123 124 u_int32_t sc_cmd; /* shadow of cmd reg during suspend */ 125 126 u_int sc_ncomp; 127 u_int sc_npcomp; 128 device_t sc_comps[EHCI_COMPANION_MAX]; 129 130 usb_dma_t sc_fldma; 131 ehci_link_t *sc_flist; 132 u_int sc_flsize; 133 u_int sc_rand; /* XXX need proper intr scheduling */ 134 135 struct ehci_soft_islot sc_islots[EHCI_INTRQHS]; 136 137 /* jcmm - an array matching sc_flist, but with software pointers, 138 * not hardware address pointers 139 */ 140 struct ehci_soft_itd **sc_softitds; 141 142 TAILQ_HEAD(, ehci_xfer) sc_intrhead; 143 kmutex_t sc_intrhead_lock; 144 145 ehci_soft_qh_t *sc_freeqhs; 146 ehci_soft_qtd_t *sc_freeqtds; 147 LIST_HEAD(sc_freeitds, ehci_soft_itd) sc_freeitds; 148 149 int sc_noport; 150 u_int8_t sc_hasppc; /* has Port Power Control */ 151 u_int8_t sc_addr; /* device address */ 152 u_int8_t sc_conf; /* device configuration */ 153 usbd_xfer_handle sc_intrxfer; 154 char sc_isreset[EHCI_MAX_PORTS]; 155 #ifdef USB_USE_SOFTINTR 156 char sc_softwake; 157 #endif /* USB_USE_SOFTINTR */ 158 159 u_int32_t sc_eintrs; 160 ehci_soft_qh_t *sc_async_head; 161 162 SIMPLEQ_HEAD(, usbd_xfer) sc_free_xfers; /* free xfers */ 163 164 kmutex_t sc_doorbell_lock; 165 166 struct callout sc_tmo_intrlist; 167 168 device_t sc_child; /* /dev/usb# device */ 169 char sc_dying; 170 struct usb_dma_reserve sc_dma_reserve; 171 172 void (*sc_vendor_init)(struct ehci_softc *); 173 int (*sc_vendor_port_status)(struct ehci_softc *, uint32_t, int); 174 } ehci_softc_t; 175 176 #define EREAD1(sc, a) bus_space_read_1((sc)->iot, (sc)->ioh, (a)) 177 #define EREAD2(sc, a) bus_space_read_2((sc)->iot, (sc)->ioh, (a)) 178 #define EREAD4(sc, a) bus_space_read_4((sc)->iot, (sc)->ioh, (a)) 179 #define EWRITE1(sc, a, x) bus_space_write_1((sc)->iot, (sc)->ioh, (a), (x)) 180 #define EWRITE2(sc, a, x) bus_space_write_2((sc)->iot, (sc)->ioh, (a), (x)) 181 #define EWRITE4(sc, a, x) bus_space_write_4((sc)->iot, (sc)->ioh, (a), (x)) 182 #define EOREAD1(sc, a) bus_space_read_1((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a)) 183 #define EOREAD2(sc, a) bus_space_read_2((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a)) 184 #define EOREAD4(sc, a) bus_space_read_4((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a)) 185 #define EOWRITE1(sc, a, x) bus_space_write_1((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a), (x)) 186 #define EOWRITE2(sc, a, x) bus_space_write_2((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a), (x)) 187 #define EOWRITE4(sc, a, x) bus_space_write_4((sc)->iot, (sc)->ioh, (sc)->sc_offs+(a), (x)) 188 189 usbd_status ehci_init(ehci_softc_t *); 190 int ehci_intr(void *); 191 int ehci_detach(ehci_softc_t *, int); 192 int ehci_activate(device_t, enum devact); 193 void ehci_childdet(device_t, device_t); 194 bool ehci_suspend(device_t, const pmf_qual_t *); 195 bool ehci_resume(device_t, const pmf_qual_t *); 196 bool ehci_shutdown(device_t, int); 197