1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * AMD MP2 common macros and structures 4 * 5 * Copyright (c) 2022, Advanced Micro Devices, Inc. 6 * All Rights Reserved. 7 * 8 * Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com> 9 */ 10 #ifndef AMD_SFH_COMMON_H 11 #define AMD_SFH_COMMON_H 12 13 #include <linux/mutex.h> 14 #include <linux/pci.h> 15 #include "amd_sfh_hid.h" 16 17 #define PCI_DEVICE_ID_AMD_MP2 0x15E4 18 #define PCI_DEVICE_ID_AMD_MP2_1_1 0x164A 19 20 #define AMD_C2P_MSG(regno) (0x10500 + ((regno) * 4)) 21 #define AMD_P2C_MSG(regno) (0x10680 + ((regno) * 4)) 22 23 #define AMD_C2P_MSG_V1(regno) (0x10900 + ((regno) * 4)) 24 #define AMD_P2C_MSG_V1(regno) (0x10500 + ((regno) * 4)) 25 26 #define SENSOR_ENABLED 4 27 #define SENSOR_DISABLED 5 28 29 #define AMD_SFH_IDLE_LOOP 200 30 31 enum cmd_id { 32 NO_OP, 33 ENABLE_SENSOR, 34 DISABLE_SENSOR, 35 STOP_ALL_SENSORS = 8, 36 }; 37 38 struct amd_mp2_sensor_info { 39 u8 sensor_idx; 40 u32 period; 41 dma_addr_t dma_address; 42 }; 43 44 struct sfh_dev_status { 45 bool is_hpd_present; 46 bool is_hpd_enabled; 47 bool is_als_present; 48 bool is_sra_present; 49 }; 50 51 struct amd_mp2_dev { 52 struct pci_dev *pdev; 53 struct amdtp_cl_data *cl_data; 54 void __iomem *mmio; 55 void __iomem *vsbase; 56 const struct amd_sfh1_1_ops *sfh1_1_ops; 57 struct amd_mp2_ops *mp2_ops; 58 struct amd_input_data in_data; 59 /* mp2 active control status */ 60 u32 mp2_acs; 61 struct sfh_dev_status dev_en; 62 struct work_struct work; 63 /* mp2 to protect data */ 64 struct mutex lock; 65 u8 init_done; 66 u8 rver; 67 }; 68 69 struct amd_mp2_ops { 70 void (*start)(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info); 71 void (*stop)(struct amd_mp2_dev *privdata, u16 sensor_idx); 72 void (*stop_all)(struct amd_mp2_dev *privdata); 73 int (*response)(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts); 74 void (*clear_intr)(struct amd_mp2_dev *privdata); 75 int (*init_intr)(struct amd_mp2_dev *privdata); 76 int (*discovery_status)(struct amd_mp2_dev *privdata); 77 void (*suspend)(struct amd_mp2_dev *mp2); 78 void (*resume)(struct amd_mp2_dev *mp2); 79 void (*remove)(void *privdata); 80 int (*get_rep_desc)(int sensor_idx, u8 rep_desc[]); 81 u32 (*get_desc_sz)(int sensor_idx, int descriptor_name); 82 u8 (*get_feat_rep)(int sensor_idx, int report_id, u8 *feature_report); 83 u8 (*get_in_rep)(u8 current_index, int sensor_idx, int report_id, 84 struct amd_input_data *in_data); 85 }; 86 87 void amd_sfh_work(struct work_struct *work); 88 void amd_sfh_work_buffer(struct work_struct *work); 89 void amd_sfh_clear_intr_v2(struct amd_mp2_dev *privdata); 90 int amd_sfh_irq_init_v2(struct amd_mp2_dev *privdata); 91 void amd_sfh_clear_intr(struct amd_mp2_dev *privdata); 92 int amd_sfh_irq_init(struct amd_mp2_dev *privdata); 93 94 static inline u64 amd_get_c2p_val(struct amd_mp2_dev *mp2, u32 idx) 95 { 96 return mp2->rver == 1 ? AMD_C2P_MSG_V1(idx) : AMD_C2P_MSG(idx); 97 } 98 99 static inline u64 amd_get_p2c_val(struct amd_mp2_dev *mp2, u32 idx) 100 { 101 return mp2->rver == 1 ? AMD_P2C_MSG_V1(idx) : AMD_P2C_MSG(idx); 102 } 103 #endif 104