add camera_framework(base on ov2640)

camera_framework/Kconfig

@@ -0,0 +1,148 @@
+menu "ov2640 camera"
+
+    config SENSOR_USING_OV2640
+        bool "Enable OV2640 Camera Module"
+        default y
+        help
+          Enable this option to use OV2640 as the camera sensor module.
+
+    menu "DVP configuration"
+        depends on SENSOR_USING_OV2640
+
+      config OV2640_DVP_PINGPONG_POOL_SIZE
+            int "DVP PingPong Buffer Pool Size (compile-time ceiling)"
+            default 10240
+            range 1024 65536
+            help
+              Size of the statically allocated ping-pong buffer pool.
+              This is the hard upper limit for dvp_set_pingpong_size() at runtime;
+              you can never exceed this value without recompiling.
+              For SF32LB56X with OV2640_DVP_PINGPONG_USE_SECTION enabled, this
+              value must match DVP_PINGPONG_SIZE in custom_mem_map.h
+              (default: 640*8*2 = 10240).  For SF32LB52X (normal BSS) set it
+              to the largest size you will ever need at runtime.
+
+        config OV2640_DVP_PINGPONG_BUFFER_SIZE
+            int "DVP PingPong Buffer Initial Size"
+            default 8192
+            range 1024 65536
+            help
+              Initial active ping-pong buffer size passed to the DMA on dvp_init().
+              Must not exceed OV2640_DVP_PINGPONG_POOL_SIZE.
+              Can be changed freely at runtime via dvp_set_pingpong_size() without
+              recompiling, as long as the new value stays within POOL_SIZE.
+
+        config OV2640_DVP_PINGPONG_USE_SECTION
+            bool "Place DVP ping-pong buffer in a dedicated linker section (.dvp_pingpong)"
+            default n
+            help
+              When enabled, dvp_pingpong_buffer is placed in the ".dvp_pingpong" section.
+              The board link script must define a matching memory region (e.g. DVP_SRAM)
+              that maps this section to the correct SRAM address.
+              Enable for SF32LB56X boards that carve out dedicated SRAM for DVP.
+              Leave disabled for SF32LB52X (buffer lands in normal .bss).
+
+        config OV2640_DVP_DATA_PIN_BASE
+            int "DVP Data Pin Base Numbers"
+            default 0
+            help
+              DO NOT MODIFY! Only for internal use to specify the base pin number for DVP data pins (D0-D7) of the OV2640 camera module.
+        config OV2640_DVP_PCLK_PIN
+            int "DVP PCLK Pin Number (PAx index)"
+            default 41
+            help
+              PAx pin index for the DVP pixel clock (PCLK) input.
+              The driver muxes this pin to GPTIM1_ETR automatically.
+              SF32LB52X default: 41 (PA41).  SF32LB56X default: 77 (PA77).
+
+        config OV2640_DVP_HSYNC_PIN
+            int "DVP HSYNC Pin Number (PAx index)"
+            default 43
+            help
+              PAx pin index for the DVP horizontal sync (HSYNC/HREF) input.
+              The driver muxes this pin to GPTIM1_CH1 automatically.
+              SF32LB52X default: 43 (PA43).  SF32LB56X default: 78 (PA78).
+
+        config OV2640_DVP_VSYNC_PIN
+            int "DVP VSYNC Pin Number (PAx index)"
+            default 42
+            help
+              Specify the PAx pin index connected to the DVP VSYNC signal of the OV2640 camera module.
+              This pin is used for GPIO interrupt.
+              SF32LB52X default: 42 (PA42).  SF32LB56X: adjust to your board layout.
+
+    endmenu
+
+    menu "SCCB configuration"
+        depends on SENSOR_USING_OV2640
+
+        config OV2640_SCCB_I2C_BUS_NAME
+            string "SCCB I2C Bus Name"
+            default "i2c1"
+            help
+              Specify the I2C bus name used for SCCB communication with the OV2640 camera module.
+
+        config OV2640_SCCB_TIMEOUT_MS
+            int "SCCB Timeout (ms)"
+            default 1000
+            help
+              Specify the timeout value in milliseconds for SCCB I2C communication.
+
+        config OV2640_SCCB_MAX_HZ
+            int "SCCB I2C Max Frequency (Hz)"
+            default 100000
+            range 10000 400000
+            help
+              Specify the maximum I2C bus frequency in Hz for SCCB communication.
+              Default is 100kHz (100000 Hz).
+
+    endmenu
+
+    menu "Camera configuration"
+        depends on SENSOR_USING_OV2640
+
+        config OV2640_CAMERA_READ_TIMEOUT_MS
+            int "Camera Read Timeout (ms)"
+            default 1000
+            range 100 10000
+            help
+              Specify the timeout value in milliseconds for camera read operations.
+              Default is 10000ms (10 second).
+
+        config OV2640_DVP_XCLK_PIN
+            int "XCLK Output Pin Number"
+            default -1
+            help
+              Specify the pin number for XCLK (external clock) output.
+              Set to -1 to disable XCLK output (use external clock source).
+              NOTE: User must configure this pin as GPTIM2_CH1 in main.c before opening the camera device.
+              Example: HAL_PIN_Set(PAD_PA00 + 44, GPTIM2_CH1, PIN_NOPULL, 1);
+
+        choice
+            prompt "XCLK Output Frequency"
+            default OV2640_DVP_XCLK_FREQ_12M
+            depends on OV2640_DVP_XCLK_PIN != -1
+            help
+              Select the XCLK output frequency for the OV2640 camera module.
+              GPTIM2 runs at 24MHz, so only 6MHz and 12MHz can be generated.
+
+            config OV2640_DVP_XCLK_FREQ_6M
+                bool "6 MHz"
+                help
+                  Generate 6MHz XCLK (24MHz / 4).
+
+            config OV2640_DVP_XCLK_FREQ_12M
+                bool "12 MHz"
+                help
+                  Generate 12MHz XCLK (24MHz / 2).
+        endchoice
+
+        config OV2640_DVP_XCLK_FREQ
+            int
+            default 6000000 if OV2640_DVP_XCLK_FREQ_6M
+            default 12000000 if OV2640_DVP_XCLK_FREQ_12M
+            default 0
+
+    endmenu
+
+endmenu