1 /* SPDX-License-Identifier: BSD-3-Clause-Clear */
2 /*
3 * Copyright (c) 2019-2021 The Linux Foundation. All rights reserved.
4 * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
5 */
6 #ifndef ATH12K_PCI_H
7 #define ATH12K_PCI_H
8
9 #include <linux/mhi.h>
10
11 #include "core.h"
12
13 #define PCIE_SOC_GLOBAL_RESET 0x3008
14 #define PCIE_SOC_GLOBAL_RESET_V 1
15
16 #define WLAON_WARM_SW_ENTRY 0x1f80504
17 #define WLAON_SOC_RESET_CAUSE_REG 0x01f8060c
18
19 #define PCIE_Q6_COOKIE_ADDR 0x01f80500
20 #define PCIE_Q6_COOKIE_DATA 0xc0000000
21
22 /* register to wake the UMAC from power collapse */
23 #define PCIE_SCRATCH_0_SOC_PCIE_REG 0x4040
24
25 /* register used for handshake mechanism to validate UMAC is awake */
26 #define PCIE_SOC_WAKE_PCIE_LOCAL_REG 0x3004
27
28 #define PCIE_PCIE_PARF_LTSSM 0x1e081b0
29 #define PARM_LTSSM_VALUE 0x111
30
31 #define GCC_GCC_PCIE_HOT_RST 0x1e38338
32 #define GCC_GCC_PCIE_HOT_RST_VAL 0x10
33
34 #define PCIE_PCIE_INT_ALL_CLEAR 0x1e08228
35 #define PCIE_SMLH_REQ_RST_LINK_DOWN 0x2
36 #define PCIE_INT_CLEAR_ALL 0xffffffff
37
38 #define PCIE_QSERDES_COM_SYSCLK_EN_SEL_REG(ab) \
39 ((ab)->hw_params->regs->pcie_qserdes_sysclk_en_sel)
40 #define PCIE_QSERDES_COM_SYSCLK_EN_SEL_VAL 0x10
41 #define PCIE_QSERDES_COM_SYSCLK_EN_SEL_MSK 0xffffffff
42 #define PCIE_PCS_OSC_DTCT_CONFIG1_REG(ab) \
43 ((ab)->hw_params->regs->pcie_pcs_osc_dtct_config_base)
44 #define PCIE_PCS_OSC_DTCT_CONFIG1_VAL 0x02
45 #define PCIE_PCS_OSC_DTCT_CONFIG2_REG(ab) \
46 ((ab)->hw_params->regs->pcie_pcs_osc_dtct_config_base + 0x4)
47 #define PCIE_PCS_OSC_DTCT_CONFIG2_VAL 0x52
48 #define PCIE_PCS_OSC_DTCT_CONFIG4_REG(ab) \
49 ((ab)->hw_params->regs->pcie_pcs_osc_dtct_config_base + 0xc)
50 #define PCIE_PCS_OSC_DTCT_CONFIG4_VAL 0xff
51 #define PCIE_PCS_OSC_DTCT_CONFIG_MSK 0x000000ff
52
53 #define WLAON_QFPROM_PWR_CTRL_REG 0x01f8031c
54 #define QFPROM_PWR_CTRL_VDD4BLOW_MASK 0x4
55
56 #define PCI_BAR_WINDOW0_BASE 0x1E00000
57 #define PCI_BAR_WINDOW0_END 0x1E7FFFC
58 #define PCI_SOC_RANGE_MASK 0x3FFF
59 #define PCI_SOC_PCI_REG_BASE 0x1E04000
60 #define PCI_SOC_PCI_REG_END 0x1E07FFC
61 #define PCI_PARF_BASE 0x1E08000
62 #define PCI_PARF_END 0x1E0BFFC
63 #define PCI_MHIREGLEN_REG 0x1E0E100
64 #define PCI_MHI_REGION_END 0x1E0EFFC
65 #define QRTR_PCI_DOMAIN_NR_MASK GENMASK(7, 4)
66 #define QRTR_PCI_BUS_NUMBER_MASK GENMASK(3, 0)
67
68 #define ATH12K_PCI_SOC_HW_VERSION_1 1
69 #define ATH12K_PCI_SOC_HW_VERSION_2 2
70
71 struct ath12k_msi_user {
72 const char *name;
73 int num_vectors;
74 u32 base_vector;
75 };
76
77 struct ath12k_msi_config {
78 int total_vectors;
79 int total_users;
80 const struct ath12k_msi_user *users;
81 };
82
83 enum ath12k_pci_flags {
84 ATH12K_PCI_FLAG_INIT_DONE,
85 ATH12K_PCI_FLAG_IS_MSI_64,
86 ATH12K_PCI_ASPM_RESTORE,
87 };
88
89 struct ath12k_pci_ops {
90 int (*wakeup)(struct ath12k_base *ab);
91 void (*release)(struct ath12k_base *ab);
92 };
93
94 struct ath12k_pci {
95 struct pci_dev *pdev;
96 struct ath12k_base *ab;
97 u16 dev_id;
98 char amss_path[100];
99 u32 msi_ep_base_data;
100 struct mhi_controller *mhi_ctrl;
101 const struct ath12k_msi_config *msi_config;
102 unsigned long mhi_state;
103 u32 register_window;
104
105 /* protects register_window above */
106 spinlock_t window_lock;
107
108 /* enum ath12k_pci_flags */
109 unsigned long flags;
110 u16 link_ctl;
111 const struct ath12k_pci_ops *pci_ops;
112 };
113
ath12k_pci_priv(struct ath12k_base * ab)114 static inline struct ath12k_pci *ath12k_pci_priv(struct ath12k_base *ab)
115 {
116 return (struct ath12k_pci *)ab->drv_priv;
117 }
118
119 int ath12k_pci_get_user_msi_assignment(struct ath12k_base *ab, char *user_name,
120 int *num_vectors, u32 *user_base_data,
121 u32 *base_vector);
122 int ath12k_pci_get_msi_irq(struct device *dev, unsigned int vector);
123 void ath12k_pci_write32(struct ath12k_base *ab, u32 offset, u32 value);
124 u32 ath12k_pci_read32(struct ath12k_base *ab, u32 offset);
125 int ath12k_pci_map_service_to_pipe(struct ath12k_base *ab, u16 service_id,
126 u8 *ul_pipe, u8 *dl_pipe);
127 void ath12k_pci_get_msi_address(struct ath12k_base *ab, u32 *msi_addr_lo,
128 u32 *msi_addr_hi);
129 void ath12k_pci_get_ce_msi_idx(struct ath12k_base *ab, u32 ce_id,
130 u32 *msi_idx);
131 void ath12k_pci_hif_ce_irq_enable(struct ath12k_base *ab);
132 void ath12k_pci_hif_ce_irq_disable(struct ath12k_base *ab);
133 void ath12k_pci_ext_irq_enable(struct ath12k_base *ab);
134 void ath12k_pci_ext_irq_disable(struct ath12k_base *ab);
135 int ath12k_pci_hif_suspend(struct ath12k_base *ab);
136 int ath12k_pci_hif_resume(struct ath12k_base *ab);
137 void ath12k_pci_stop(struct ath12k_base *ab);
138 int ath12k_pci_start(struct ath12k_base *ab);
139 int ath12k_pci_power_up(struct ath12k_base *ab);
140 void ath12k_pci_power_down(struct ath12k_base *ab);
141 #endif /* ATH12K_PCI_H */
142