drivers/media/i2c/ccs/ccs.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * drivers/media/i2c/smiapp/ccs.h
   4  *
   5  * Generic driver for MIPI CCS/SMIA/SMIA++ compliant camera sensors
   6  *
   7  * Copyright (C) 2020 Intel Corporation
   8  * Copyright (C) 2010--2012 Nokia Corporation
   9  * Contact: Sakari Ailus <[email protected]>
  10  */
  11
  12 #ifndef __CCS_H__
  13 #define __CCS_H__
  14
  15 #include <linux/mutex.h>
  16 #include <linux/regmap.h>
  17 #include <media/v4l2-ctrls.h>
  18 #include <media/v4l2-subdev.h>
  19
  20 #include "ccs-data.h"
  21 #include "ccs-limits.h"
  22 #include "ccs-quirk.h"
  23 #include "ccs-regs.h"
  24 #include "ccs-reg-access.h"
  25 #include "../ccs-pll.h"
  26 #include "smiapp-reg-defs.h"
  27
  28 /*
  29  * Standard SMIA++ constants
  30  */
  31 #define SMIA_VERSION_1                  10
  32 #define SMIAPP_VERSION_0_8              8 /* Draft 0.8 */
  33 #define SMIAPP_VERSION_0_9              9 /* Draft 0.9 */
  34 #define SMIAPP_VERSION_1                10
  35
  36 #define SMIAPP_PROFILE_0                0
  37 #define SMIAPP_PROFILE_1                1
  38 #define SMIAPP_PROFILE_2                2
  39
  40 #define SMIAPP_NVM_PAGE_SIZE            64      /* bytes */
  41
  42 #define SMIAPP_RESET_DELAY_CLOCKS       2400
  43 #define SMIAPP_RESET_DELAY(clk)                         \
  44         (1000 + (SMIAPP_RESET_DELAY_CLOCKS * 1000       \
  45                  + (clk) / 1000 - 1) / ((clk) / 1000))
  46
  47 #define CCS_COLOUR_COMPONENTS           4
  48
  49 #define SMIAPP_NAME                     "smiapp"
  50 #define CCS_NAME                        "ccs"
  51
  52 #define CCS_DFL_I2C_ADDR        (0x20 >> 1) /* Default I2C Address */
  53 #define CCS_ALT_I2C_ADDR        (0x6e >> 1) /* Alternate I2C Address */
  54
  55 #define CCS_LIM(sensor, limit) \
  56         ccs_get_limit(sensor, CCS_L_##limit, 0)
  57
  58 #define CCS_LIM_AT(sensor, limit, offset)       \
  59         ccs_get_limit(sensor, CCS_L_##limit, CCS_L_##limit##_OFFSET(offset))
  60
  61 struct ccs_flash_strobe_parms {
  62         u8 mode;
  63         u32 strobe_width_high_us;
  64         u16 strobe_delay;
  65         u16 stobe_start_point;
  66         u8 trigger;
  67 };
  68
  69 struct ccs_hwconfig {
  70         /*
  71          * Change the cci address if i2c_addr_alt is set.
  72          * Both default and alternate cci addr need to be present
  73          */
  74         unsigned short i2c_addr_dfl;    /* Default i2c addr */
  75         unsigned short i2c_addr_alt;    /* Alternate i2c addr */
  76
  77         u32 ext_clk;                    /* sensor external clk */
  78
  79         unsigned int lanes;             /* Number of CSI-2 lanes */
  80         u32 csi_signalling_mode;        /* CCS_CSI_SIGNALLING_MODE_* */
  81         u64 *op_sys_clock;
  82
  83         struct ccs_flash_strobe_parms *strobe_setup;
  84 };
  85
  86 struct ccs_quirk;
  87
  88 #define CCS_MODULE_IDENT_FLAG_REV_LE            (1 << 0)
  89
  90 struct ccs_module_ident {
  91         u16 mipi_manufacturer_id;
  92         u16 model_id;
  93         u8 smia_manufacturer_id;
  94         u8 revision_number_major;
  95
  96         u8 flags;
  97
  98         char *name;
  99         const struct ccs_quirk *quirk;
 100 };
 101
 102 struct ccs_module_info {
 103         u32 smia_manufacturer_id;
 104         u32 mipi_manufacturer_id;
 105         u32 model_id;
 106         u32 revision_number;
 107
 108         u32 module_year;
 109         u32 module_month;
 110         u32 module_day;
 111
 112         u32 sensor_smia_manufacturer_id;
 113         u32 sensor_mipi_manufacturer_id;
 114         u32 sensor_model_id;
 115         u32 sensor_revision_number;
 116         u32 sensor_firmware_version;
 117
 118         u32 smia_version;
 119         u32 smiapp_version;
 120         u32 ccs_version;
 121
 122         char *name;
 123         const struct ccs_quirk *quirk;
 124 };
 125
 126 #define CCS_IDENT_FQ(manufacturer, model, rev, fl, _name, _quirk)       \
 127         { .smia_manufacturer_id = manufacturer,                         \
 128           .model_id = model,                                            \
 129           .revision_number_major = rev,                                 \
 130           .flags = fl,                                                  \
 131           .name = _name,                                                \
 132           .quirk = _quirk, }
 133
 134 #define CCS_IDENT_LQ(manufacturer, model, rev, _name, _quirk)   \
 135         { .smia_manufacturer_id = manufacturer,                         \
 136           .model_id = model,                                            \
 137           .revision_number_major = rev,                                 \
 138           .flags = CCS_MODULE_IDENT_FLAG_REV_LE,                        \
 139           .name = _name,                                                \
 140           .quirk = _quirk, }
 141
 142 #define CCS_IDENT_L(manufacturer, model, rev, _name)                    \
 143         { .smia_manufacturer_id = manufacturer,                         \
 144           .model_id = model,                                            \
 145           .revision_number_major = rev,                                 \
 146           .flags = CCS_MODULE_IDENT_FLAG_REV_LE,                        \
 147           .name = _name, }
 148
 149 #define CCS_IDENT_Q(manufacturer, model, rev, _name, _quirk)            \
 150         { .smia_manufacturer_id = manufacturer,                         \
 151           .model_id = model,                                            \
 152           .revision_number_major = rev,                                 \
 153           .flags = 0,                                                   \
 154           .name = _name,                                                \
 155           .quirk = _quirk, }
 156
 157 #define CCS_IDENT(manufacturer, model, rev, _name)                      \
 158         { .smia_manufacturer_id = manufacturer,                         \
 159           .model_id = model,                                            \
 160           .revision_number_major = rev,                                 \
 161           .flags = 0,                                                   \
 162           .name = _name, }
 163
 164 struct ccs_csi_data_format {
 165         u32 code;
 166         u8 width;
 167         u8 compressed;
 168         u8 pixel_order;
 169 };
 170
 171 #define CCS_SUBDEVS                     3
 172
 173 #define CCS_PA_PAD_SRC                  0
 174 #define CCS_PAD_SINK                    0
 175 #define CCS_PAD_SRC                     1
 176 #define CCS_PADS                        2
 177
 178 struct ccs_binning_subtype {
 179         u8 horizontal:4;
 180         u8 vertical:4;
 181 } __packed;
 182
 183 struct ccs_subdev {
 184         struct v4l2_subdev sd;
 185         struct media_pad pads[CCS_PADS];
 186         unsigned short sink_pad;
 187         unsigned short source_pad;
 188         int npads;
 189         struct ccs_sensor *sensor;
 190         struct v4l2_ctrl_handler ctrl_handler;
 191 };
 192
 193 /*
 194  * struct ccs_sensor - Main device structure
 195  */
 196 struct ccs_sensor {
 197         /*
 198          * "mutex" is used to serialise access to all fields here
 199          * except v4l2_ctrls at the end of the struct. "mutex" is also
 200          * used to serialise access to file handle specific
 201          * information.
 202          */
 203         struct mutex mutex;
 204         struct ccs_subdev ssds[CCS_SUBDEVS];
 205         u32 ssds_used;
 206         struct ccs_subdev *src;
 207         struct ccs_subdev *binner;
 208         struct ccs_subdev *scaler;
 209         struct ccs_subdev *pixel_array;
 210         struct ccs_hwconfig hwcfg;
 211         struct regulator_bulk_data *regulators;
 212         struct clk *ext_clk;
 213         struct gpio_desc *xshutdown;
 214         struct gpio_desc *reset;
 215         struct regmap *regmap;
 216         void *ccs_limits;
 217         u8 nbinning_subtypes;
 218         struct ccs_binning_subtype binning_subtypes[CCS_LIM_BINNING_SUB_TYPE_MAX_N + 1];
 219         u32 mbus_frame_fmts;
 220         const struct ccs_csi_data_format *csi_format;
 221         const struct ccs_csi_data_format *internal_csi_format;
 222         struct v4l2_rect pa_src, scaler_sink, src_src;
 223         u32 default_mbus_frame_fmts;
 224         int default_pixel_order;
 225         struct ccs_data_container sdata, mdata;
 226
 227         u8 binning_horizontal;
 228         u8 binning_vertical;
 229
 230         u8 scale_m;
 231         u8 scaling_mode;
 232
 233         u8 frame_skip;
 234         u16 embedded_start; /* embedded data start line */
 235         u16 embedded_end;
 236         u16 image_start; /* image data start line */
 237         u16 visible_pixel_start; /* start pixel of the visible image */
 238
 239         bool streaming;
 240         bool dev_init_done;
 241         bool handler_setup_needed;
 242         u8 compressed_min_bpp;
 243
 244         struct ccs_module_info minfo;
 245
 246         struct ccs_pll pll;
 247
 248         /* Is a default format supported for a given BPP? */
 249         unsigned long *valid_link_freqs;
 250
 251         /* Pixel array controls */
 252         struct v4l2_ctrl *exposure;
 253         struct v4l2_ctrl *hflip;
 254         struct v4l2_ctrl *vflip;
 255         struct v4l2_ctrl *vblank;
 256         struct v4l2_ctrl *hblank;
 257         struct v4l2_ctrl *pixel_rate_parray;
 258         struct v4l2_ctrl *luminance_level;
 259         /* src controls */
 260         struct v4l2_ctrl *link_freq;
 261         struct v4l2_ctrl *pixel_rate_csi;
 262         /* test pattern colour components */
 263         struct v4l2_ctrl *test_data[CCS_COLOUR_COMPONENTS];
 264 };
 265
 266 #define to_ccs_subdev(_sd)                              \
 267         container_of(_sd, struct ccs_subdev, sd)
 268
 269 #define to_ccs_sensor(_sd)      \
 270         (to_ccs_subdev(_sd)->sensor)
 271
 272 void ccs_replace_limit(struct ccs_sensor *sensor,
 273                        unsigned int limit, unsigned int offset, u32 val);
 274 u32 ccs_get_limit(struct ccs_sensor *sensor, unsigned int limit,
 275                   unsigned int offset);
 276
 277 #endif /* __CCS_H__ */