1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * camss.h 4 * 5 * Qualcomm MSM Camera Subsystem - Core 6 * 7 * Copyright (c) 2015, The Linux Foundation. All rights reserved. 8 * Copyright (C) 2015-2018 Linaro Ltd. 9 */ 10 #ifndef QC_MSM_CAMSS_H 11 #define QC_MSM_CAMSS_H 12 13 #include <linux/device.h> 14 #include <linux/types.h> 15 #include <media/v4l2-async.h> 16 #include <media/v4l2-device.h> 17 #include <media/v4l2-subdev.h> 18 #include <media/media-device.h> 19 #include <media/media-entity.h> 20 21 #include "camss-csid.h" 22 #include "camss-csiphy.h" 23 #include "camss-ispif.h" 24 #include "camss-vfe.h" 25 #include "camss-format.h" 26 27 #define to_camss(ptr_module) \ 28 container_of(ptr_module, struct camss, ptr_module) 29 30 #define to_device(ptr_module) \ 31 (to_camss(ptr_module)->dev) 32 33 #define module_pointer(ptr_module, index) \ 34 ((const struct ptr_module##_device (*)[]) &(ptr_module[-(index)])) 35 36 #define to_camss_index(ptr_module, index) \ 37 container_of(module_pointer(ptr_module, index), \ 38 struct camss, ptr_module) 39 40 #define to_device_index(ptr_module, index) \ 41 (to_camss_index(ptr_module, index)->dev) 42 43 #define CAMSS_RES_MAX 17 44 45 struct camss_subdev_resources { 46 char *regulators[CAMSS_RES_MAX]; 47 char *clock[CAMSS_RES_MAX]; 48 char *clock_for_reset[CAMSS_RES_MAX]; 49 u32 clock_rate[CAMSS_RES_MAX][CAMSS_RES_MAX]; 50 char *reg[CAMSS_RES_MAX]; 51 char *interrupt[CAMSS_RES_MAX]; 52 union { 53 struct csiphy_subdev_resources csiphy; 54 struct csid_subdev_resources csid; 55 struct vfe_subdev_resources vfe; 56 }; 57 }; 58 59 struct icc_bw_tbl { 60 u32 avg; 61 u32 peak; 62 }; 63 64 struct resources_icc { 65 char *name; 66 struct icc_bw_tbl icc_bw_tbl; 67 }; 68 69 enum pm_domain { 70 PM_DOMAIN_VFE0 = 0, 71 PM_DOMAIN_VFE1 = 1, 72 PM_DOMAIN_VFELITE = 2, /* VFELITE / TOP GDSC */ 73 }; 74 75 enum camss_version { 76 CAMSS_8x16, 77 CAMSS_8x96, 78 CAMSS_660, 79 CAMSS_845, 80 CAMSS_8250, 81 CAMSS_8280XP, 82 }; 83 84 enum icc_count { 85 ICC_DEFAULT_COUNT = 0, 86 ICC_SM8250_COUNT = 4, 87 }; 88 89 struct camss_resources { 90 enum camss_version version; 91 const char *pd_name; 92 const struct camss_subdev_resources *csiphy_res; 93 const struct camss_subdev_resources *csid_res; 94 const struct camss_subdev_resources *ispif_res; 95 const struct camss_subdev_resources *vfe_res; 96 const struct resources_icc *icc_res; 97 const unsigned int icc_path_num; 98 const unsigned int csiphy_num; 99 const unsigned int csid_num; 100 const unsigned int vfe_num; 101 int (*link_entities)(struct camss *camss); 102 }; 103 104 struct camss { 105 struct v4l2_device v4l2_dev; 106 struct v4l2_async_notifier notifier; 107 struct media_device media_dev; 108 struct device *dev; 109 struct csiphy_device *csiphy; 110 struct csid_device *csid; 111 struct ispif_device *ispif; 112 struct vfe_device *vfe; 113 atomic_t ref_count; 114 int genpd_num; 115 struct device *genpd; 116 struct device_link *genpd_link; 117 struct icc_path *icc_path[ICC_SM8250_COUNT]; 118 const struct camss_resources *res; 119 }; 120 121 struct camss_camera_interface { 122 u8 csiphy_id; 123 struct csiphy_csi2_cfg csi2; 124 }; 125 126 struct camss_async_subdev { 127 struct v4l2_async_connection asd; /* must be first */ 128 struct camss_camera_interface interface; 129 }; 130 131 struct camss_clock { 132 struct clk *clk; 133 const char *name; 134 u32 *freq; 135 u32 nfreqs; 136 }; 137 138 struct parent_dev_ops { 139 int (*get)(struct camss *camss, int id); 140 int (*put)(struct camss *camss, int id); 141 void __iomem *(*get_base_address)(struct camss *camss, int id); 142 }; 143 144 void camss_add_clock_margin(u64 *rate); 145 int camss_enable_clocks(int nclocks, struct camss_clock *clock, 146 struct device *dev); 147 void camss_disable_clocks(int nclocks, struct camss_clock *clock); 148 struct media_entity *camss_find_sensor(struct media_entity *entity); 149 s64 camss_get_link_freq(struct media_entity *entity, unsigned int bpp, 150 unsigned int lanes); 151 int camss_get_pixel_clock(struct media_entity *entity, u64 *pixel_clock); 152 int camss_pm_domain_on(struct camss *camss, int id); 153 void camss_pm_domain_off(struct camss *camss, int id); 154 int camss_vfe_get(struct camss *camss, int id); 155 void camss_vfe_put(struct camss *camss, int id); 156 void camss_delete(struct camss *camss); 157 158 #endif /* QC_MSM_CAMSS_H */ 159