MLX90640: got registers, start to write image reading process

F1:F103/MLX90640/mlx90640.h

@@ -21,13 +21,74 @@
 
 #include <stm32f1.h>
 
+// timeout for reading operations, ms
+#define MLX_TIMEOUT         1000
+// counter of errors, when > max -> M_ERROR
+#define MLX_MAXERR_COUNT    10
+// wait after power off, ms
+#define MLX_POWOFF_WAIT     500
+// wait after power on, ms
+#define MLX_POWON_WAIT      2000
+
+// amount of pixels
+#define MLX_PIXNO           (24*32)
+// pixels + service data
+#define MLX_PIXARRSZ        (MLX_PIXNO + 64)
+
+typedef struct{
+    int16_t kVdd;
+    int16_t vdd25;
+    float KvPTAT;
+    float KtPTAT;
+    int16_t vPTAT25;
+    float alphaPTAT;
+    int16_t gainEE;
+    float tgc;
+    float cpKv;     // K_V_CP
+    float cpKta;    // K_Ta_CP
+    float KsTa;
+    float CT[3]; // range borders (0, 160, 320 degrC?)
+    float ksTo[4]; // K_S_To for each range
+    float alphacorr[4]; // Alpha_corr for each range
+    float alpha[MLX_PIXNO]; // full - with alpha_scale
+    int16_t offset[MLX_PIXNO];
+    float kta[MLX_PIXNO]; // full K_ta - with scale1&2
+    float kv[4];  // full - with scale; 0 - odd row, odd col; 1 - odd row even col; 2 - even row, odd col; 3 - even row, even col
+    float cpAlpha[2];   // alpha_CP_subpage 0 and 1
+    int16_t cpOffset[2];
+} MLX90640_params;
+
+extern MLX90640_params params;
+
+typedef enum{
+    M_ERROR,            // error: need to reboot sensor
+    M_RELAX,            // base state
+    M_FIRSTSTART,       // first start after power on
+    M_READCONF,         // read configuration data
+    M_STARTIMA,         // start image aquiring
+    M_PROCESS,          // process subpage - wait for image ready
+    M_READOUT,          // wait while subpage data be read
+    M_POWERON,          // wait for 100ms after power is on before -> firststart
+    M_POWEROFF1,        // turn off power
+    M_POWEROFF,         // wait for 500ms without power
+    //
+    M_STATES_AMOUNT     // amount of states
+} mlx90640_state;
+
+extern mlx90640_state mlx_state;
+extern float mlx_image[MLX_PIXNO];
+
 // default I2C address
 #define MLX_DEFAULT_ADDR    (0x33)
+// max datalength by one read (in 16-bit values)
+#define MLX_DMA_MAXLEN      (832)
 
-void mlx90640_process();
 int read_reg(uint16_t reg, uint16_t *val);
 int write_reg(uint16_t reg, uint16_t val);
 int read_data(uint16_t reg, uint16_t *data, int N);
 int read_data_dma(uint16_t reg, int N);
+void mlx90640_process();
+int mlx90640_take_image(uint8_t simple);
+void mlx90640_restart();
 
 #endif // MLX90640__