1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * hci1394_detach.c 31 * HBA detach() routine with associated funtions. 32 */ 33 34 #include <sys/types.h> 35 #include <sys/kmem.h> 36 #include <sys/conf.h> 37 #include <sys/ddi.h> 38 #include <sys/modctl.h> 39 #include <sys/stat.h> 40 #include <sys/sunddi.h> 41 42 #include <sys/1394/h1394.h> 43 #include <sys/1394/adapters/hci1394.h> 44 #include <sys/1394/adapters/hci1394_extern.h> 45 46 47 48 int 49 hci1394_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) 50 { 51 hci1394_state_t *soft_state; 52 53 54 TNF_PROBE_0_DEBUG(hci1394_detach_enter, HCI1394_TNF_HAL_STACK, ""); 55 56 soft_state = ddi_get_soft_state(hci1394_statep, ddi_get_instance(dip)); 57 if (soft_state == NULL) { 58 TNF_PROBE_1(hci1394_detach_ssn_fail, HCI1394_TNF_HAL_ERROR, "", 59 tnf_string, errmsg, "soft_state = NULL"); 60 TNF_PROBE_0_DEBUG(hci1394_detach_exit, HCI1394_TNF_HAL_STACK, 61 ""); 62 return (DDI_FAILURE); 63 } 64 65 switch (cmd) { 66 case DDI_DETACH: 67 /* Don't allow the HW to generate any more interrupts */ 68 hci1394_ohci_intr_master_disable(soft_state->ohci); 69 70 /* unregister interrupt handler */ 71 hci1394_isr_handler_fini(soft_state); 72 73 /* don't accept anymore commands from services layer */ 74 (void) hci1394_state_set(&soft_state->drvinfo, 75 HCI1394_SHUTDOWN); 76 77 /* Reset the OHCI HW */ 78 (void) hci1394_ohci_soft_reset(soft_state->ohci); 79 80 /* Flush out async DMA Q's (cancels pendingQ timeouts too) */ 81 hci1394_async_flush(soft_state->async); 82 83 (void) h1394_detach(&soft_state->drvinfo.di_sl_private, 84 DDI_DETACH); 85 86 /* remove the minor node */ 87 ddi_remove_minor_node(dip, "devctl"); 88 89 /* cleanup */ 90 hci1394_detach_hardware(soft_state); 91 92 /* cleanup Solaris interrupt stuff */ 93 hci1394_isr_fini(soft_state); 94 95 /* cleanup soft state stuff */ 96 hci1394_soft_state_fini(soft_state); 97 98 /* free soft state */ 99 ddi_soft_state_free(hci1394_statep, 100 soft_state->drvinfo.di_instance); 101 102 TNF_PROBE_0_DEBUG(hci1394_detach_exit, HCI1394_TNF_HAL_STACK, 103 ""); 104 return (DDI_SUCCESS); 105 106 case DDI_SUSPEND: 107 /* Don't allow the HW to generate any more interrupts */ 108 hci1394_ohci_intr_master_disable(soft_state->ohci); 109 110 /* don't accept anymore commands from services layer */ 111 (void) hci1394_state_set(&soft_state->drvinfo, 112 HCI1394_SHUTDOWN); 113 114 /* Reset the OHCI HW */ 115 (void) hci1394_ohci_soft_reset(soft_state->ohci); 116 117 /* Make sure async engine is ready to suspend */ 118 hci1394_async_suspend(soft_state->async); 119 120 (void) h1394_detach(&soft_state->drvinfo.di_sl_private, 121 DDI_SUSPEND); 122 123 TNF_PROBE_0_DEBUG(hci1394_detach_exit, HCI1394_TNF_HAL_STACK, 124 ""); 125 return (DDI_SUCCESS); 126 127 default: 128 TNF_PROBE_1(hci1394_detach_fail, HCI1394_TNF_HAL_ERROR, "", 129 tnf_string, errmsg, "in detach default"); 130 break; 131 } 132 133 TNF_PROBE_0_DEBUG(hci1394_detach_exit, HCI1394_TNF_HAL_STACK, ""); 134 135 return (DDI_FAILURE); 136 } 137 138 139 void 140 hci1394_detach_hardware(hci1394_state_t *soft_state) 141 { 142 ASSERT(soft_state != NULL); 143 TNF_PROBE_0_DEBUG(hci1394_detach_hardware_enter, HCI1394_TNF_HAL_STACK, 144 ""); 145 146 /* free up vendor specific registers */ 147 hci1394_vendor_fini(&soft_state->vendor); 148 149 /* cleanup isoch layer */ 150 hci1394_isoch_fini(&soft_state->isoch); 151 152 /* cleanup async layer */ 153 hci1394_async_fini(&soft_state->async); 154 155 /* Free up csr register space */ 156 hci1394_csr_fini(&soft_state->csr); 157 158 /* free up OpenHCI registers */ 159 hci1394_ohci_fini(&soft_state->ohci); 160 161 /* free up PCI config space */ 162 hci1394_pci_fini(soft_state); 163 164 TNF_PROBE_0_DEBUG(hci1394_detach_hardware_exit, HCI1394_TNF_HAL_STACK, 165 ""); 166 } 167 168 169 /* 170 * hci1394_pci_fini() 171 * Cleanup after a PCI init. 172 */ 173 void 174 hci1394_pci_fini(hci1394_state_t *soft_state) 175 { 176 ASSERT(soft_state != NULL); 177 TNF_PROBE_0_DEBUG(hci1394_pci_fini_enter, HCI1394_TNF_HAL_STACK, ""); 178 pci_config_teardown(&soft_state->pci_config); 179 TNF_PROBE_0_DEBUG(hci1394_pci_fini_exit, HCI1394_TNF_HAL_STACK, ""); 180 } 181 182 183 /* 184 * hci1394_soft_state_fini() 185 * Cleanup any mutex's, etc. in soft_state. 186 */ 187 void 188 hci1394_soft_state_fini(hci1394_state_t *soft_state) 189 { 190 ASSERT(soft_state != NULL); 191 TNF_PROBE_0_DEBUG(hci1394_soft_state_fini_enter, HCI1394_TNF_HAL_STACK, 192 ""); 193 mutex_destroy(&soft_state->drvinfo.di_drvstate.ds_mutex); 194 TNF_PROBE_0_DEBUG(hci1394_soft_state_fini_exit, HCI1394_TNF_HAL_STACK, 195 ""); 196 } 197