linux/drivers/media/platform/exynos4-is/fimc-is.h
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   1/*
   2 * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
   3 *
   4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
   5 *
   6 * Authors: Younghwan Joo <yhwan.joo@samsung.com>
   7 *          Sylwester Nawrocki <s.nawrocki@samsung.com>
   8 *
   9 * This program is free software; you can redistribute it and/or modify
  10 * it under the terms of the GNU General Public License version 2 as
  11 * published by the Free Software Foundation.
  12 */
  13#ifndef FIMC_IS_H_
  14#define FIMC_IS_H_
  15
  16#include <asm/barrier.h>
  17#include <linux/clk.h>
  18#include <linux/device.h>
  19#include <linux/kernel.h>
  20#include <linux/pinctrl/consumer.h>
  21#include <linux/platform_device.h>
  22#include <linux/sizes.h>
  23#include <linux/spinlock.h>
  24#include <linux/types.h>
  25#include <media/videobuf2-core.h>
  26#include <media/v4l2-ctrls.h>
  27
  28#include "fimc-isp.h"
  29#include "fimc-is-command.h"
  30#include "fimc-is-sensor.h"
  31#include "fimc-is-param.h"
  32#include "fimc-is-regs.h"
  33
  34#define FIMC_IS_DRV_NAME                "exynos4-fimc-is"
  35
  36#define FIMC_IS_FW_FILENAME             "exynos4_fimc_is_fw.bin"
  37#define FIMC_IS_SETFILE_6A3             "exynos4_s5k6a3_setfile.bin"
  38
  39#define FIMC_IS_FW_LOAD_TIMEOUT         1000 /* ms */
  40#define FIMC_IS_POWER_ON_TIMEOUT        1000 /* us */
  41
  42#define FIMC_IS_SENSORS_NUM             2
  43
  44/* Memory definitions */
  45#define FIMC_IS_CPU_MEM_SIZE            (0xa00000)
  46#define FIMC_IS_CPU_BASE_MASK           ((1 << 26) - 1)
  47#define FIMC_IS_REGION_SIZE             0x5000
  48
  49#define FIMC_IS_DEBUG_REGION_OFFSET     0x0084b000
  50#define FIMC_IS_SHARED_REGION_OFFSET    0x008c0000
  51#define FIMC_IS_FW_INFO_LEN             31
  52#define FIMC_IS_FW_VER_LEN              7
  53#define FIMC_IS_FW_DESC_LEN             (FIMC_IS_FW_INFO_LEN + \
  54                                         FIMC_IS_FW_VER_LEN)
  55#define FIMC_IS_SETFILE_INFO_LEN        39
  56
  57#define FIMC_IS_EXTRA_MEM_SIZE          (FIMC_IS_EXTRA_FW_SIZE + \
  58                                         FIMC_IS_EXTRA_SETFILE_SIZE + 0x1000)
  59#define FIMC_IS_EXTRA_FW_SIZE           0x180000
  60#define FIMC_IS_EXTRA_SETFILE_SIZE      0x4b000
  61
  62/* TODO: revisit */
  63#define FIMC_IS_FW_ADDR_MASK            ((1 << 26) - 1)
  64#define FIMC_IS_FW_SIZE_MAX             (SZ_4M)
  65#define FIMC_IS_FW_SIZE_MIN             (SZ_32K)
  66
  67#define ATCLK_MCUISP_FREQUENCY          100000000UL
  68#define ACLK_AXI_FREQUENCY              100000000UL
  69
  70enum {
  71        ISS_CLK_PPMUISPX,
  72        ISS_CLK_PPMUISPMX,
  73        ISS_CLK_LITE0,
  74        ISS_CLK_LITE1,
  75        ISS_CLK_MPLL,
  76        ISS_CLK_ISP,
  77        ISS_CLK_DRC,
  78        ISS_CLK_FD,
  79        ISS_CLK_MCUISP,
  80        ISS_CLK_UART,
  81        ISS_GATE_CLKS_MAX,
  82        ISS_CLK_ISP_DIV0 = ISS_GATE_CLKS_MAX,
  83        ISS_CLK_ISP_DIV1,
  84        ISS_CLK_MCUISP_DIV0,
  85        ISS_CLK_MCUISP_DIV1,
  86        ISS_CLK_ACLK200,
  87        ISS_CLK_ACLK200_DIV,
  88        ISS_CLK_ACLK400MCUISP,
  89        ISS_CLK_ACLK400MCUISP_DIV,
  90        ISS_CLKS_MAX
  91};
  92
  93/* The driver's internal state flags */
  94enum {
  95        IS_ST_IDLE,
  96        IS_ST_PWR_ON,
  97        IS_ST_A5_PWR_ON,
  98        IS_ST_FW_LOADED,
  99        IS_ST_OPEN_SENSOR,
 100        IS_ST_SETFILE_LOADED,
 101        IS_ST_INIT_DONE,
 102        IS_ST_STREAM_ON,
 103        IS_ST_STREAM_OFF,
 104        IS_ST_CHANGE_MODE,
 105        IS_ST_BLOCK_CMD_CLEARED,
 106        IS_ST_SET_ZOOM,
 107        IS_ST_PWR_SUBIP_ON,
 108        IS_ST_END,
 109};
 110
 111enum af_state {
 112        FIMC_IS_AF_IDLE         = 0,
 113        FIMC_IS_AF_SETCONFIG    = 1,
 114        FIMC_IS_AF_RUNNING      = 2,
 115        FIMC_IS_AF_LOCK         = 3,
 116        FIMC_IS_AF_ABORT        = 4,
 117        FIMC_IS_AF_FAILED       = 5,
 118};
 119
 120enum af_lock_state {
 121        FIMC_IS_AF_UNLOCKED     = 0,
 122        FIMC_IS_AF_LOCKED       = 2
 123};
 124
 125enum ae_lock_state {
 126        FIMC_IS_AE_UNLOCKED     = 0,
 127        FIMC_IS_AE_LOCKED       = 1
 128};
 129
 130enum awb_lock_state {
 131        FIMC_IS_AWB_UNLOCKED    = 0,
 132        FIMC_IS_AWB_LOCKED      = 1
 133};
 134
 135enum {
 136        IS_METERING_CONFIG_CMD,
 137        IS_METERING_CONFIG_WIN_POS_X,
 138        IS_METERING_CONFIG_WIN_POS_Y,
 139        IS_METERING_CONFIG_WIN_WIDTH,
 140        IS_METERING_CONFIG_WIN_HEIGHT,
 141        IS_METERING_CONFIG_MAX
 142};
 143
 144struct is_setfile {
 145        const struct firmware *info;
 146        int state;
 147        u32 sub_index;
 148        u32 base;
 149        size_t size;
 150};
 151
 152struct is_fd_result_header {
 153        u32 offset;
 154        u32 count;
 155        u32 index;
 156        u32 curr_index;
 157        u32 width;
 158        u32 height;
 159};
 160
 161struct is_af_info {
 162        u16 mode;
 163        u32 af_state;
 164        u32 af_lock_state;
 165        u32 ae_lock_state;
 166        u32 awb_lock_state;
 167        u16 pos_x;
 168        u16 pos_y;
 169        u16 prev_pos_x;
 170        u16 prev_pos_y;
 171        u16 use_af;
 172};
 173
 174struct fimc_is_firmware {
 175        const struct firmware *f_w;
 176
 177        dma_addr_t paddr;
 178        void *vaddr;
 179        unsigned int size;
 180
 181        char info[FIMC_IS_FW_INFO_LEN + 1];
 182        char version[FIMC_IS_FW_VER_LEN + 1];
 183        char setfile_info[FIMC_IS_SETFILE_INFO_LEN + 1];
 184        u8 state;
 185};
 186
 187struct fimc_is_memory {
 188        /* physical base address */
 189        dma_addr_t paddr;
 190        /* virtual base address */
 191        void *vaddr;
 192        /* total length */
 193        unsigned int size;
 194};
 195
 196#define FIMC_IS_I2H_MAX_ARGS    12
 197
 198struct i2h_cmd {
 199        u32 cmd;
 200        u32 sensor_id;
 201        u16 num_args;
 202        u32 args[FIMC_IS_I2H_MAX_ARGS];
 203};
 204
 205struct h2i_cmd {
 206        u16 cmd_type;
 207        u32 entry_id;
 208};
 209
 210#define FIMC_IS_DEBUG_MSG       0x3f
 211#define FIMC_IS_DEBUG_LEVEL     3
 212
 213struct fimc_is_setfile {
 214        const struct firmware *info;
 215        unsigned int state;
 216        unsigned int size;
 217        u32 sub_index;
 218        u32 base;
 219};
 220
 221struct chain_config {
 222        struct global_param     global;
 223        struct sensor_param     sensor;
 224        struct isp_param        isp;
 225        struct drc_param        drc;
 226        struct fd_param         fd;
 227
 228        unsigned long           p_region_index[2];
 229};
 230
 231/**
 232 * struct fimc_is - fimc-is data structure
 233 * @pdev: pointer to FIMC-IS platform device
 234 * @pctrl: pointer to pinctrl structure for this device
 235 * @v4l2_dev: pointer to top the level v4l2_device
 236 * @alloc_ctx: videobuf2 memory allocator context
 237 * @lock: mutex serializing video device and the subdev operations
 238 * @slock: spinlock protecting this data structure and the hw registers
 239 * @clocks: FIMC-LITE gate clock
 240 * @regs: MCUCTL mmapped registers region
 241 * @pmu_regs: PMU ISP mmapped registers region
 242 * @irq_queue: interrupt handling waitqueue
 243 * @lpm: low power mode flag
 244 * @state: internal driver's state flags
 245 */
 246struct fimc_is {
 247        struct platform_device          *pdev;
 248        struct pinctrl                  *pctrl;
 249        struct v4l2_device              *v4l2_dev;
 250
 251        struct fimc_is_firmware         fw;
 252        struct fimc_is_memory           memory;
 253        struct firmware                 *f_w;
 254
 255        struct fimc_isp                 isp;
 256        struct fimc_is_sensor           sensor[FIMC_IS_SENSORS_NUM];
 257        struct fimc_is_setfile          setfile;
 258
 259        struct vb2_alloc_ctx            *alloc_ctx;
 260        struct v4l2_ctrl_handler        ctrl_handler;
 261
 262        struct mutex                    lock;
 263        spinlock_t                      slock;
 264
 265        struct clk                      *clocks[ISS_CLKS_MAX];
 266        void __iomem                    *regs;
 267        void __iomem                    *pmu_regs;
 268        int                             irq;
 269        wait_queue_head_t               irq_queue;
 270        u8                              lpm;
 271
 272        unsigned long                   state;
 273        unsigned int                    sensor_index;
 274
 275        struct i2h_cmd                  i2h_cmd;
 276        struct h2i_cmd                  h2i_cmd;
 277        struct is_fd_result_header      fd_header;
 278
 279        struct chain_config             config[IS_SC_MAX];
 280        unsigned                        config_index;
 281
 282        struct is_region                *is_p_region;
 283        dma_addr_t                      is_dma_p_region;
 284        struct is_share_region          *is_shared_region;
 285        struct is_af_info               af;
 286
 287        struct dentry                   *debugfs_entry;
 288};
 289
 290static inline struct fimc_is *fimc_isp_to_is(struct fimc_isp *isp)
 291{
 292        return container_of(isp, struct fimc_is, isp);
 293}
 294
 295static inline struct chain_config *__get_curr_is_config(struct fimc_is *is)
 296{
 297        return &is->config[is->config_index];
 298}
 299
 300static inline void fimc_is_mem_barrier(void)
 301{
 302        mb();
 303}
 304
 305static inline void fimc_is_set_param_bit(struct fimc_is *is, int num)
 306{
 307        struct chain_config *cfg = &is->config[is->config_index];
 308
 309        set_bit(num, &cfg->p_region_index[0]);
 310}
 311
 312static inline void fimc_is_set_param_ctrl_cmd(struct fimc_is *is, int cmd)
 313{
 314        is->is_p_region->parameter.isp.control.cmd = cmd;
 315}
 316
 317static inline void mcuctl_write(u32 v, struct fimc_is *is, unsigned int offset)
 318{
 319        writel(v, is->regs + offset);
 320}
 321
 322static inline u32 mcuctl_read(struct fimc_is *is, unsigned int offset)
 323{
 324        return readl(is->regs + offset);
 325}
 326
 327static inline void pmuisp_write(u32 v, struct fimc_is *is, unsigned int offset)
 328{
 329        writel(v, is->pmu_regs + offset);
 330}
 331
 332static inline u32 pmuisp_read(struct fimc_is *is, unsigned int offset)
 333{
 334        return readl(is->pmu_regs + offset);
 335}
 336
 337int fimc_is_wait_event(struct fimc_is *is, unsigned long bit,
 338                       unsigned int state, unsigned int timeout);
 339int fimc_is_cpu_set_power(struct fimc_is *is, int on);
 340int fimc_is_start_firmware(struct fimc_is *is);
 341int fimc_is_hw_initialize(struct fimc_is *is);
 342void fimc_is_log_dump(const char *level, const void *buf, size_t len);
 343
 344#endif /* FIMC_IS_H_ */
 345