1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * camss-vfe.h 4 * 5 * Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module 6 * 7 * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved. 8 * Copyright (C) 2015-2018 Linaro Ltd. 9 */ 10 #ifndef QC_MSM_CAMSS_VFE_H 11 #define QC_MSM_CAMSS_VFE_H 12 13 #include <linux/clk.h> 14 #include <linux/spinlock_types.h> 15 #include <media/media-entity.h> 16 #include <media/v4l2-device.h> 17 #include <media/v4l2-subdev.h> 18 19 #include "camss-video.h" 20 21 #define MSM_VFE_PAD_SINK 0 22 #define MSM_VFE_PAD_SRC 1 23 #define MSM_VFE_PADS_NUM 2 24 25 #define MSM_VFE_LINE_NUM 4 26 #define MSM_VFE_IMAGE_MASTERS_NUM 7 27 #define MSM_VFE_COMPOSITE_IRQ_NUM 4 28 29 enum vfe_output_state { 30 VFE_OUTPUT_OFF, 31 VFE_OUTPUT_RESERVED, 32 VFE_OUTPUT_SINGLE, 33 VFE_OUTPUT_CONTINUOUS, 34 VFE_OUTPUT_IDLE, 35 VFE_OUTPUT_STOPPING 36 }; 37 38 enum vfe_line_id { 39 VFE_LINE_NONE = -1, 40 VFE_LINE_RDI0 = 0, 41 VFE_LINE_RDI1 = 1, 42 VFE_LINE_RDI2 = 2, 43 VFE_LINE_PIX = 3 44 }; 45 46 struct vfe_output { 47 u8 wm_num; 48 u8 wm_idx[3]; 49 50 int active_buf; 51 struct camss_buffer *buf[2]; 52 struct camss_buffer *last_buffer; 53 struct list_head pending_bufs; 54 55 unsigned int drop_update_idx; 56 57 enum vfe_output_state state; 58 unsigned int sequence; 59 int wait_sof; 60 int wait_reg_update; 61 struct completion sof; 62 struct completion reg_update; 63 }; 64 65 struct vfe_line { 66 enum vfe_line_id id; 67 struct v4l2_subdev subdev; 68 struct media_pad pads[MSM_VFE_PADS_NUM]; 69 struct v4l2_mbus_framefmt fmt[MSM_VFE_PADS_NUM]; 70 struct v4l2_rect compose; 71 struct v4l2_rect crop; 72 struct camss_video video_out; 73 struct vfe_output output; 74 const struct vfe_format *formats; 75 unsigned int nformats; 76 }; 77 78 struct vfe_device; 79 80 struct vfe_hw_ops { 81 void (*hw_version_read)(struct vfe_device *vfe, struct device *dev); 82 u16 (*get_ub_size)(u8 vfe_id); 83 void (*global_reset)(struct vfe_device *vfe); 84 void (*halt_request)(struct vfe_device *vfe); 85 void (*halt_clear)(struct vfe_device *vfe); 86 void (*wm_enable)(struct vfe_device *vfe, u8 wm, u8 enable); 87 void (*wm_frame_based)(struct vfe_device *vfe, u8 wm, u8 enable); 88 void (*wm_line_based)(struct vfe_device *vfe, u32 wm, 89 struct v4l2_pix_format_mplane *pix, 90 u8 plane, u32 enable); 91 void (*wm_set_framedrop_period)(struct vfe_device *vfe, u8 wm, u8 per); 92 void (*wm_set_framedrop_pattern)(struct vfe_device *vfe, u8 wm, 93 u32 pattern); 94 void (*wm_set_ub_cfg)(struct vfe_device *vfe, u8 wm, u16 offset, 95 u16 depth); 96 void (*bus_reload_wm)(struct vfe_device *vfe, u8 wm); 97 void (*wm_set_ping_addr)(struct vfe_device *vfe, u8 wm, u32 addr); 98 void (*wm_set_pong_addr)(struct vfe_device *vfe, u8 wm, u32 addr); 99 int (*wm_get_ping_pong_status)(struct vfe_device *vfe, u8 wm); 100 void (*bus_enable_wr_if)(struct vfe_device *vfe, u8 enable); 101 void (*bus_connect_wm_to_rdi)(struct vfe_device *vfe, u8 wm, 102 enum vfe_line_id id); 103 void (*wm_set_subsample)(struct vfe_device *vfe, u8 wm); 104 void (*bus_disconnect_wm_from_rdi)(struct vfe_device *vfe, u8 wm, 105 enum vfe_line_id id); 106 void (*set_xbar_cfg)(struct vfe_device *vfe, struct vfe_output *output, 107 u8 enable); 108 void (*set_rdi_cid)(struct vfe_device *vfe, enum vfe_line_id id, 109 u8 cid); 110 void (*set_realign_cfg)(struct vfe_device *vfe, struct vfe_line *line, 111 u8 enable); 112 void (*reg_update)(struct vfe_device *vfe, enum vfe_line_id line_id); 113 void (*reg_update_clear)(struct vfe_device *vfe, 114 enum vfe_line_id line_id); 115 void (*enable_irq_wm_line)(struct vfe_device *vfe, u8 wm, 116 enum vfe_line_id line_id, u8 enable); 117 void (*enable_irq_pix_line)(struct vfe_device *vfe, u8 comp, 118 enum vfe_line_id line_id, u8 enable); 119 void (*enable_irq_common)(struct vfe_device *vfe); 120 void (*set_demux_cfg)(struct vfe_device *vfe, struct vfe_line *line); 121 void (*set_scale_cfg)(struct vfe_device *vfe, struct vfe_line *line); 122 void (*set_crop_cfg)(struct vfe_device *vfe, struct vfe_line *line); 123 void (*set_clamp_cfg)(struct vfe_device *vfe); 124 void (*set_qos)(struct vfe_device *vfe); 125 void (*set_ds)(struct vfe_device *vfe); 126 void (*set_cgc_override)(struct vfe_device *vfe, u8 wm, u8 enable); 127 void (*set_camif_cfg)(struct vfe_device *vfe, struct vfe_line *line); 128 void (*set_camif_cmd)(struct vfe_device *vfe, u8 enable); 129 void (*set_module_cfg)(struct vfe_device *vfe, u8 enable); 130 int (*camif_wait_for_stop)(struct vfe_device *vfe, struct device *dev); 131 void (*isr_read)(struct vfe_device *vfe, u32 *value0, u32 *value1); 132 void (*violation_read)(struct vfe_device *vfe); 133 irqreturn_t (*isr)(int irq, void *dev); 134 }; 135 136 struct vfe_isr_ops { 137 void (*reset_ack)(struct vfe_device *vfe); 138 void (*halt_ack)(struct vfe_device *vfe); 139 void (*reg_update)(struct vfe_device *vfe, enum vfe_line_id line_id); 140 void (*sof)(struct vfe_device *vfe, enum vfe_line_id line_id); 141 void (*comp_done)(struct vfe_device *vfe, u8 comp); 142 void (*wm_done)(struct vfe_device *vfe, u8 wm); 143 }; 144 145 struct vfe_device { 146 struct camss *camss; 147 u8 id; 148 void __iomem *base; 149 u32 irq; 150 char irq_name[30]; 151 struct camss_clock *clock; 152 int nclocks; 153 struct completion reset_complete; 154 struct completion halt_complete; 155 struct mutex power_lock; 156 int power_count; 157 struct mutex stream_lock; 158 int stream_count; 159 spinlock_t output_lock; 160 enum vfe_line_id wm_output_map[MSM_VFE_IMAGE_MASTERS_NUM]; 161 struct vfe_line line[MSM_VFE_LINE_NUM]; 162 u32 reg_update; 163 u8 was_streaming; 164 const struct vfe_hw_ops *ops; 165 struct vfe_isr_ops isr_ops; 166 }; 167 168 struct resources; 169 170 int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe, 171 const struct resources *res, u8 id); 172 173 int msm_vfe_register_entities(struct vfe_device *vfe, 174 struct v4l2_device *v4l2_dev); 175 176 void msm_vfe_unregister_entities(struct vfe_device *vfe); 177 178 void msm_vfe_get_vfe_id(struct media_entity *entity, u8 *id); 179 void msm_vfe_get_vfe_line_id(struct media_entity *entity, enum vfe_line_id *id); 180 181 extern const struct vfe_hw_ops vfe_ops_4_1; 182 extern const struct vfe_hw_ops vfe_ops_4_7; 183 extern const struct vfe_hw_ops vfe_ops_4_8; 184 185 #endif /* QC_MSM_CAMSS_VFE_H */ 186