1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef __IPMIVARS_H__ 32 #define __IPMIVARS_H__ 33 34 struct ipmi_get_info { 35 int iface_type; 36 uint64_t address; 37 int offset; 38 int io_mode; 39 int irq; 40 }; 41 42 struct ipmi_device; 43 44 struct ipmi_request { 45 TAILQ_ENTRY(ipmi_request) ir_link; 46 struct ipmi_device *ir_owner; /* Driver uses NULL. */ 47 u_char *ir_request; /* Request is data to send to BMC. */ 48 size_t ir_requestlen; 49 u_char *ir_reply; /* Reply is data read from BMC. */ 50 size_t ir_replybuflen; /* Length of ir_reply[] buffer. */ 51 int ir_replylen; /* Length of reply from BMC. */ 52 int ir_error; 53 long ir_msgid; 54 uint8_t ir_addr; 55 uint8_t ir_command; 56 uint8_t ir_compcode; 57 }; 58 59 #define MAX_RES 3 60 #define KCS_DATA 0 61 #define KCS_CTL_STS 1 62 #define SMIC_DATA 0 63 #define SMIC_CTL_STS 1 64 #define SMIC_FLAGS 2 65 66 struct ipmi_softc; 67 68 /* Per file descriptor data. */ 69 struct ipmi_device { 70 TAILQ_ENTRY(ipmi_device) ipmi_link; 71 TAILQ_HEAD(,ipmi_request) ipmi_completed_requests; 72 struct selinfo ipmi_select; 73 struct ipmi_softc *ipmi_softc; 74 int ipmi_closing; 75 int ipmi_requests; 76 u_char ipmi_address; /* IPMB address. */ 77 u_char ipmi_lun; 78 }; 79 80 struct ipmi_kcs { 81 }; 82 83 struct ipmi_smic { 84 }; 85 86 struct ipmi_ssif { 87 device_t smbus; 88 int smbus_address; 89 }; 90 91 struct ipmi_softc { 92 device_t ipmi_dev; 93 union { 94 struct ipmi_kcs kcs; 95 struct ipmi_smic smic; 96 struct ipmi_ssif ssif; 97 } _iface; 98 int ipmi_io_rid; 99 int ipmi_io_type; 100 struct mtx ipmi_io_lock; 101 struct resource *ipmi_io_res[MAX_RES]; 102 int ipmi_io_spacing; 103 int ipmi_irq_rid; 104 struct resource *ipmi_irq_res; 105 void *ipmi_irq; 106 int ipmi_detaching; 107 int ipmi_opened; 108 uint8_t ipmi_dev_support; /* IPMI_ADS_* */ 109 struct cdev *ipmi_cdev; 110 TAILQ_HEAD(,ipmi_request) ipmi_pending_requests; 111 int ipmi_driver_requests_polled; 112 eventhandler_tag ipmi_power_cycle_tag; 113 eventhandler_tag ipmi_watchdog_tag; 114 eventhandler_tag ipmi_shutdown_tag; 115 int ipmi_watchdog_active; 116 int ipmi_watchdog_actions; 117 int ipmi_watchdog_pretimeout; 118 struct intr_config_hook ipmi_ich; 119 struct mtx ipmi_requests_lock; 120 struct cv ipmi_request_added; 121 struct proc *ipmi_kthread; 122 driver_intr_t *ipmi_intr; 123 int (*ipmi_startup)(struct ipmi_softc *); 124 int (*ipmi_enqueue_request)(struct ipmi_softc *, struct ipmi_request *); 125 int (*ipmi_driver_request)(struct ipmi_softc *, struct ipmi_request *, int); 126 }; 127 128 #define ipmi_ssif_smbus_address _iface.ssif.smbus_address 129 #define ipmi_ssif_smbus _iface.ssif.smbus 130 131 struct ipmi_ipmb { 132 u_char foo; 133 }; 134 135 #define KCS_MODE 0x01 136 #define SMIC_MODE 0x02 137 #define BT_MODE 0x03 138 #define SSIF_MODE 0x04 139 140 /* KCS status flags */ 141 #define KCS_STATUS_OBF 0x01 /* Data Out ready from BMC */ 142 #define KCS_STATUS_IBF 0x02 /* Data In from System */ 143 #define KCS_STATUS_SMS_ATN 0x04 /* Ready in RX queue */ 144 #define KCS_STATUS_C_D 0x08 /* Command/Data register write*/ 145 #define KCS_STATUS_OEM1 0x10 146 #define KCS_STATUS_OEM2 0x20 147 #define KCS_STATUS_S0 0x40 148 #define KCS_STATUS_S1 0x80 149 #define KCS_STATUS_STATE(x) ((x)>>6) 150 #define KCS_STATUS_STATE_IDLE 0x0 151 #define KCS_STATUS_STATE_READ 0x1 152 #define KCS_STATUS_STATE_WRITE 0x2 153 #define KCS_STATUS_STATE_ERROR 0x3 154 #define KCS_IFACE_STATUS_OK 0x00 155 #define KCS_IFACE_STATUS_ABORT 0x01 156 #define KCS_IFACE_STATUS_ILLEGAL 0x02 157 #define KCS_IFACE_STATUS_LENGTH_ERR 0x06 158 #define KCS_IFACE_STATUS_UNKNOWN_ERR 0xff 159 160 /* KCS control codes */ 161 #define KCS_CONTROL_GET_STATUS_ABORT 0x60 162 #define KCS_CONTROL_WRITE_START 0x61 163 #define KCS_CONTROL_WRITE_END 0x62 164 #define KCS_DATA_IN_READ 0x68 165 166 /* SMIC status flags */ 167 #define SMIC_STATUS_BUSY 0x01 /* System set and BMC clears it */ 168 #define SMIC_STATUS_SMS_ATN 0x04 /* BMC has a message */ 169 #define SMIC_STATUS_EVT_ATN 0x08 /* Event has been RX */ 170 #define SMIC_STATUS_SMI 0x10 /* asserted SMI */ 171 #define SMIC_STATUS_TX_RDY 0x40 /* Ready to accept WRITE */ 172 #define SMIC_STATUS_RX_RDY 0x80 /* Ready to read */ 173 #define SMIC_STATUS_RESERVED 0x22 174 175 /* SMIC control codes */ 176 #define SMIC_CC_SMS_GET_STATUS 0x40 177 #define SMIC_CC_SMS_WR_START 0x41 178 #define SMIC_CC_SMS_WR_NEXT 0x42 179 #define SMIC_CC_SMS_WR_END 0x43 180 #define SMIC_CC_SMS_RD_START 0x44 181 #define SMIC_CC_SMS_RD_NEXT 0x45 182 #define SMIC_CC_SMS_RD_END 0x46 183 184 /* SMIC status codes */ 185 #define SMIC_SC_SMS_RDY 0xc0 186 #define SMIC_SC_SMS_WR_START 0xc1 187 #define SMIC_SC_SMS_WR_NEXT 0xc2 188 #define SMIC_SC_SMS_WR_END 0xc3 189 #define SMIC_SC_SMS_RD_START 0xc4 190 #define SMIC_SC_SMS_RD_NEXT 0xc5 191 #define SMIC_SC_SMS_RD_END 0xc6 192 193 #define IPMI_ADDR(netfn, lun) ((netfn) << 2 | (lun)) 194 #define IPMI_REPLY_ADDR(addr) ((addr) + 0x4) 195 196 #define IPMI_LOCK(sc) mtx_lock(&(sc)->ipmi_requests_lock) 197 #define IPMI_UNLOCK(sc) mtx_unlock(&(sc)->ipmi_requests_lock) 198 #define IPMI_LOCK_ASSERT(sc) mtx_assert(&(sc)->ipmi_requests_lock, MA_OWNED) 199 200 #define IPMI_IO_LOCK(sc) mtx_lock(&(sc)->ipmi_io_lock) 201 #define IPMI_IO_UNLOCK(sc) mtx_unlock(&(sc)->ipmi_io_lock) 202 #define IPMI_IO_LOCK_ASSERT(sc) mtx_assert(&(sc)->ipmi_io_lock, MA_OWNED) 203 204 /* I/O to a single I/O resource. */ 205 #define INB_SINGLE(sc, x) \ 206 bus_read_1((sc)->ipmi_io_res[0], (sc)->ipmi_io_spacing * (x)) 207 #define OUTB_SINGLE(sc, x, value) \ 208 bus_write_1((sc)->ipmi_io_res[0], (sc)->ipmi_io_spacing * (x), value) 209 210 /* I/O with each register in its in I/O resource. */ 211 #define INB_MULTIPLE(sc, x) \ 212 bus_read_1((sc)->ipmi_io_res[(x)], 0) 213 #define OUTB_MULTIPLE(sc, x, value) \ 214 bus_write_1((sc)->ipmi_io_res[(x)], 0, value) 215 216 /* 217 * Determine I/O method based on whether or not we have more than one I/O 218 * resource. 219 */ 220 #define INB(sc, x) \ 221 ((sc)->ipmi_io_res[1] != NULL ? INB_MULTIPLE(sc, x) : INB_SINGLE(sc, x)) 222 #define OUTB(sc, x, value) \ 223 ((sc)->ipmi_io_res[1] != NULL ? OUTB_MULTIPLE(sc, x, value) : \ 224 OUTB_SINGLE(sc, x, value)) 225 226 #define MAX_TIMEOUT 6 * hz 227 228 int ipmi_attach(device_t); 229 int ipmi_detach(device_t); 230 void ipmi_release_resources(device_t); 231 232 /* Manage requests. */ 233 struct ipmi_request *ipmi_alloc_request(struct ipmi_device *, long, uint8_t, 234 uint8_t, size_t, size_t); 235 void ipmi_complete_request(struct ipmi_softc *, struct ipmi_request *); 236 struct ipmi_request *ipmi_dequeue_request(struct ipmi_softc *); 237 void ipmi_free_request(struct ipmi_request *); 238 int ipmi_polled_enqueue_request(struct ipmi_softc *, struct ipmi_request *); 239 int ipmi_submit_driver_request(struct ipmi_softc *, struct ipmi_request *, 240 int); 241 242 /* Identify BMC interface via SMBIOS. */ 243 int ipmi_smbios_identify(struct ipmi_get_info *); 244 245 /* Match BMC PCI device listed in SMBIOS. */ 246 const char *ipmi_pci_match(uint16_t, uint16_t); 247 248 /* Interface attach routines. */ 249 int ipmi_kcs_attach(struct ipmi_softc *); 250 int ipmi_kcs_probe_align(struct ipmi_softc *); 251 int ipmi_smic_attach(struct ipmi_softc *); 252 int ipmi_ssif_attach(struct ipmi_softc *, device_t, int); 253 254 #ifdef IPMB 255 int ipmi_handle_attn(struct ipmi_softc *); 256 #endif 257 258 extern devclass_t ipmi_devclass; 259 extern int ipmi_attached; 260 261 #endif /* !__IPMIVARS_H__ */ 262