1 /*
2 * Copyright (c) 2016-2021 The Linux Foundation. All rights reserved.
3 * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for
6 * any purpose with or without fee is hereby granted, provided that the
7 * above copyright notice and this permission notice appear in all
8 * copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17 * PERFORMANCE OF THIS SOFTWARE.
18 */
19
20 #include "hif.h"
21 #include "hif_main.h"
22 #include "multibus.h"
23 #include "pci_api.h"
24 #include "hif_io32.h"
25 #include "dummy.h"
26 #include "ce_api.h"
27
28 /**
29 * hif_initialize_pci_ops() - initialize the pci ops
30 * @hif_sc: HIF context
31 *
32 * Return: QDF_STATUS_SUCCESS
33 */
hif_initialize_pci_ops(struct hif_softc * hif_sc)34 QDF_STATUS hif_initialize_pci_ops(struct hif_softc *hif_sc)
35 {
36 struct hif_bus_ops *bus_ops = &hif_sc->bus_ops;
37
38 bus_ops->hif_bus_open = &hif_pci_open;
39 bus_ops->hif_bus_close = &hif_pci_close;
40 bus_ops->hif_bus_prevent_linkdown = &hif_pci_prevent_linkdown;
41 bus_ops->hif_reset_soc = &hif_pci_reset_soc;
42 bus_ops->hif_bus_suspend = &hif_pci_bus_suspend;
43 bus_ops->hif_bus_resume = &hif_pci_bus_resume;
44 bus_ops->hif_bus_suspend_noirq = &hif_pci_bus_suspend_noirq;
45 bus_ops->hif_bus_resume_noirq = &hif_pci_bus_resume_noirq;
46
47 /* do not put the target to sleep for epping or maxperf mode */
48 if (CONFIG_ATH_PCIE_MAX_PERF == 0 &&
49 !QDF_IS_EPPING_ENABLED(hif_get_conparam(hif_sc)))
50 bus_ops->hif_target_sleep_state_adjust =
51 &hif_pci_target_sleep_state_adjust;
52 else
53 bus_ops->hif_target_sleep_state_adjust =
54 &hif_dummy_target_sleep_state_adjust;
55
56 bus_ops->hif_disable_isr = &hif_pci_disable_isr;
57 bus_ops->hif_nointrs = &hif_pci_nointrs;
58 bus_ops->hif_enable_bus = &hif_pci_enable_bus;
59 bus_ops->hif_disable_bus = &hif_pci_disable_bus;
60 bus_ops->hif_bus_configure = &hif_pci_bus_configure;
61 bus_ops->hif_get_config_item = &hif_dummy_get_config_item;
62 bus_ops->hif_set_mailbox_swap = &hif_dummy_set_mailbox_swap;
63 bus_ops->hif_claim_device = &hif_dummy_claim_device;
64 bus_ops->hif_shutdown_device = &hif_ce_stop;
65 bus_ops->hif_stop = &hif_ce_stop;
66 bus_ops->hif_cancel_deferred_target_sleep =
67 &hif_pci_cancel_deferred_target_sleep;
68 bus_ops->hif_irq_disable = &hif_pci_irq_disable;
69 bus_ops->hif_irq_enable = &hif_pci_irq_enable;
70 bus_ops->hif_dump_registers = &hif_pci_dump_registers;
71 bus_ops->hif_dump_target_memory = &hif_ce_dump_target_memory;
72 bus_ops->hif_reg_read32 = &hif_pci_reg_read32;
73 bus_ops->hif_reg_write32 = &hif_pci_reg_write32;
74 bus_ops->hif_ipa_get_ce_resource = &hif_ce_ipa_get_ce_resource;
75 bus_ops->hif_mask_interrupt_call = &hif_dummy_mask_interrupt_call;
76 bus_ops->hif_enable_power_management =
77 &hif_pci_enable_power_management;
78 bus_ops->hif_disable_power_management =
79 &hif_pci_disable_power_management;
80 bus_ops->hif_grp_irq_configure = &hif_pci_configure_grp_irq;
81 bus_ops->hif_grp_irq_deconfigure = &hif_pci_deconfigure_grp_irq;
82 bus_ops->hif_display_stats =
83 &hif_pci_display_stats;
84 bus_ops->hif_clear_stats =
85 &hif_pci_clear_stats;
86 bus_ops->hif_addr_in_boundary = &hif_pci_addr_in_boundary;
87
88 /* default to legacy mapping handler; override as needed */
89 bus_ops->hif_map_ce_to_irq = &hif_pci_legacy_map_ce_to_irq;
90 bus_ops->hif_needs_bmi = &hif_pci_needs_bmi;
91
92 bus_ops->hif_config_irq_affinity =
93 &hif_pci_config_irq_affinity;
94 bus_ops->hif_config_irq_by_ceid = &hif_ce_msi_configure_irq_by_ceid;
95 bus_ops->hif_config_irq_clear_cpu_affinity =
96 &hif_pci_config_irq_clear_cpu_affinity;
97 bus_ops->hif_log_bus_info = &hif_log_pcie_info;
98 #ifdef FEATURE_IRQ_AFFINITY
99 bus_ops->hif_set_grp_intr_affinity = &hif_pci_set_grp_intr_affinity;
100 #endif
101 #ifdef WLAN_FEATURE_AFFINITY_MGR
102 bus_ops->hif_affinity_mgr_set_affinity = &hif_affinity_mgr_affine_irq;
103 #endif
104 return QDF_STATUS_SUCCESS;
105 }
106
107 /**
108 * hif_update_irq_ops_with_pci() - reinitialize the pci ops
109 * for hybrid bus type device qcn6122 ie.connected to pci slot
110 * but act as ahb bus device from host perspective
111 *
112 * @hif_sc: hif_softc to get bus ops
113 *
114 * Return: QDF_STATUS_SUCCESS
115 */
hif_update_irq_ops_with_pci(struct hif_softc * hif_sc)116 QDF_STATUS hif_update_irq_ops_with_pci(struct hif_softc *hif_sc)
117 {
118 struct hif_bus_ops *bus_ops = &hif_sc->bus_ops;
119
120 bus_ops->hif_grp_irq_configure = &hif_pci_configure_grp_irq;
121 bus_ops->hif_grp_irq_deconfigure = &hif_pci_deconfigure_grp_irq;
122 bus_ops->hif_nointrs = &hif_pci_nointrs;
123 bus_ops->hif_irq_disable = &hif_pci_irq_disable;
124 bus_ops->hif_irq_enable = &hif_pci_irq_enable;
125 bus_ops->hif_disable_isr = &hif_pci_disable_isr;
126
127 return QDF_STATUS_SUCCESS;
128 }
129
130 /**
131 * hif_pci_get_context_size() - return the size of the pci context
132 *
133 * Return the size of the context. (0 for invalid bus)
134 */
hif_pci_get_context_size(void)135 int hif_pci_get_context_size(void)
136 {
137 return sizeof(struct hif_pci_softc);
138 }
139