1 /* 2 * Copyright (c) 2016-2021 The Linux Foundation. All rights reserved. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for 5 * any purpose with or without fee is hereby granted, provided that the 6 * above copyright notice and this permission notice appear in all 7 * copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 10 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 11 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 12 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 13 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 14 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 15 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 16 * PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include "hif.h" 20 #include "hif_main.h" 21 #include "multibus.h" 22 #include "pci_api.h" 23 #include "hif_io32.h" 24 #include "dummy.h" 25 #include "ce_api.h" 26 27 /** 28 * hif_initialize_pci_ops() - initialize the pci ops 29 * @bus_ops: hif_bus_ops table pointer to initialize 30 * 31 * Return: QDF_STATUS_SUCCESS 32 */ 33 QDF_STATUS hif_initialize_pci_ops(struct hif_softc *hif_sc) 34 { 35 struct hif_bus_ops *bus_ops = &hif_sc->bus_ops; 36 37 bus_ops->hif_bus_open = &hif_pci_open; 38 bus_ops->hif_bus_close = &hif_pci_close; 39 bus_ops->hif_bus_prevent_linkdown = &hif_pci_prevent_linkdown; 40 bus_ops->hif_reset_soc = &hif_pci_reset_soc; 41 bus_ops->hif_bus_suspend = &hif_pci_bus_suspend; 42 bus_ops->hif_bus_resume = &hif_pci_bus_resume; 43 bus_ops->hif_bus_suspend_noirq = &hif_pci_bus_suspend_noirq; 44 bus_ops->hif_bus_resume_noirq = &hif_pci_bus_resume_noirq; 45 46 /* do not put the target to sleep for epping or maxperf mode */ 47 if (CONFIG_ATH_PCIE_MAX_PERF == 0 && 48 !QDF_IS_EPPING_ENABLED(hif_get_conparam(hif_sc))) 49 bus_ops->hif_target_sleep_state_adjust = 50 &hif_pci_target_sleep_state_adjust; 51 else 52 bus_ops->hif_target_sleep_state_adjust = 53 &hif_dummy_target_sleep_state_adjust; 54 55 bus_ops->hif_disable_isr = &hif_pci_disable_isr; 56 bus_ops->hif_nointrs = &hif_pci_nointrs; 57 bus_ops->hif_enable_bus = &hif_pci_enable_bus; 58 bus_ops->hif_disable_bus = &hif_pci_disable_bus; 59 #ifdef FEATURE_RUNTIME_PM 60 bus_ops->hif_bus_get_rpm_ctx = &hif_pci_get_rpm_ctx; 61 bus_ops->hif_bus_get_dev = &hif_pci_get_dev; 62 #endif 63 bus_ops->hif_bus_configure = &hif_pci_bus_configure; 64 bus_ops->hif_get_config_item = &hif_dummy_get_config_item; 65 bus_ops->hif_set_mailbox_swap = &hif_dummy_set_mailbox_swap; 66 bus_ops->hif_claim_device = &hif_dummy_claim_device; 67 bus_ops->hif_shutdown_device = &hif_ce_stop; 68 bus_ops->hif_stop = &hif_ce_stop; 69 bus_ops->hif_cancel_deferred_target_sleep = 70 &hif_pci_cancel_deferred_target_sleep; 71 bus_ops->hif_irq_disable = &hif_pci_irq_disable; 72 bus_ops->hif_irq_enable = &hif_pci_irq_enable; 73 bus_ops->hif_dump_registers = &hif_pci_dump_registers; 74 bus_ops->hif_dump_target_memory = &hif_ce_dump_target_memory; 75 bus_ops->hif_reg_read32 = &hif_pci_reg_read32; 76 bus_ops->hif_reg_write32 = &hif_pci_reg_write32; 77 bus_ops->hif_ipa_get_ce_resource = &hif_ce_ipa_get_ce_resource; 78 bus_ops->hif_mask_interrupt_call = &hif_dummy_mask_interrupt_call; 79 bus_ops->hif_enable_power_management = 80 &hif_pci_enable_power_management; 81 bus_ops->hif_disable_power_management = 82 &hif_pci_disable_power_management; 83 bus_ops->hif_grp_irq_configure = &hif_pci_configure_grp_irq; 84 bus_ops->hif_grp_irq_deconfigure = &hif_pci_deconfigure_grp_irq; 85 bus_ops->hif_display_stats = 86 &hif_pci_display_stats; 87 bus_ops->hif_clear_stats = 88 &hif_pci_clear_stats; 89 bus_ops->hif_addr_in_boundary = &hif_pci_addr_in_boundary; 90 91 /* default to legacy mapping handler; override as needed */ 92 bus_ops->hif_map_ce_to_irq = &hif_pci_legacy_map_ce_to_irq; 93 bus_ops->hif_needs_bmi = &hif_pci_needs_bmi; 94 95 bus_ops->hif_config_irq_affinity = 96 &hif_pci_config_irq_affinity; 97 bus_ops->hif_config_irq_by_ceid = &hif_ce_msi_configure_irq_by_ceid; 98 bus_ops->hif_config_irq_clear_cpu_affinity = 99 &hif_pci_config_irq_clear_cpu_affinity; 100 bus_ops->hif_log_bus_info = &hif_log_pcie_info; 101 102 return QDF_STATUS_SUCCESS; 103 } 104 105 /** 106 * hif_update_irq_ops_with_pci() - reinitialize the pci ops 107 * for hybrid bus type device qcn6122 ie.connected to pci slot 108 * but act as ahb bus device from host perspective 109 * 110 * @hif_sc: hif_softc to get bus ops 111 * 112 * Return: QDF_STATUS_SUCCESS 113 */ 114 QDF_STATUS hif_update_irq_ops_with_pci(struct hif_softc *hif_sc) 115 { 116 struct hif_bus_ops *bus_ops = &hif_sc->bus_ops; 117 118 bus_ops->hif_grp_irq_configure = &hif_pci_configure_grp_irq; 119 bus_ops->hif_grp_irq_deconfigure = &hif_pci_deconfigure_grp_irq; 120 bus_ops->hif_nointrs = &hif_pci_nointrs; 121 bus_ops->hif_irq_disable = &hif_pci_irq_disable; 122 bus_ops->hif_irq_enable = &hif_pci_irq_enable; 123 bus_ops->hif_disable_isr = &hif_pci_disable_isr; 124 125 return QDF_STATUS_SUCCESS; 126 } 127 128 /** 129 * hif_pci_get_context_size() - return the size of the pci context 130 * 131 * Return the size of the context. (0 for invalid bus) 132 */ 133 int hif_pci_get_context_size(void) 134 { 135 return sizeof(struct hif_pci_softc); 136 } 137