X-Git-Url: https://git.ao2.it/libam7xxx.git/blobdiff_plain/5e7d217e7f1d40fbfb6bc6375421a21bd5572788..14b6a47d284966d034259b433028e25c5adcd9bd:/src/am7xxx.h

diff --git a/src/am7xxx.h b/src/am7xxx.h
index 49510eb..b6a2a9a 100644
--- a/src/am7xxx.h
+++ b/src/am7xxx.h
@@ -19,21 +19,16 @@
 #ifndef __AM7XXX_H
 #define __AM7XXX_H
 
-#include <stdint.h>
-#include <libusb-1.0/libusb.h>
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-typedef libusb_device_handle *am7xxx_device;
 
-typedef enum {
-	AM7XXX_PACKET_TYPE_INIT	   = 0x01,
-	AM7XXX_PACKET_TYPE_IMAGE   = 0x02,
-	AM7XXX_PACKET_TYPE_POWER   = 0x04,
-	AM7XXX_PACKET_TYPE_UNKNOWN = 0x05,
-} am7xxx_packet_type;
+struct _am7xxx_context;
+typedef struct _am7xxx_context am7xxx_context;
+
+struct _am7xxx_device;
+typedef struct _am7xxx_device am7xxx_device;
 
 typedef enum {
 	AM7XXX_IMAGE_FORMAT_JPEG = 1,
@@ -41,72 +36,44 @@ typedef enum {
 } am7xxx_image_format;
 
 typedef enum {
-	AM7XXX_POWER_OFF  = 0,
-	AM7XXX_POWER_LOW  = 1,
-	AM7XXX_POWER_MID  = 2,
-	AM7XXX_POWER_HIGH = 3,
+	AM7XXX_POWER_OFF    = 0,
+	AM7XXX_POWER_LOW    = 1,
+	AM7XXX_POWER_MIDDLE = 2,
+	AM7XXX_POWER_HIGH   = 3,
+	AM7XXX_POWER_TURBO  = 4,
 } am7xxx_power_mode;
 
-struct am7xxx_generic_header {
-	uint32_t field0;
-	uint32_t field1;
-	uint32_t field2;
-	uint32_t field3;
-};
-
-struct am7xxx_image_header {
-	uint32_t format;
-	uint32_t width;
-	uint32_t height;
-	uint32_t image_size;
-};
-
-struct am7xxx_power_header {
-	uint32_t power_low;
-	uint32_t power_mid;
-	uint32_t power_high;
-};
+int am7xxx_init(am7xxx_context **ctx);
 
-/*
- * Examples of packet headers:
- *
- * Image header:
- * 02 00 00 00 00 10 3e 10 01 00 00 00 20 03 00 00 e0 01 00 00 53 E8 00 00
- *
- * Power header:
- * 04 00 00 00 00 0c ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- */
+void am7xxx_shutdown(am7xxx_context *ctx);
 
-/* The header size on the wire is known to be always 24 bytes, regardless of
- * the memory configuration enforced by different architechtures or compilers
- * for struct am7xxx_header
- */
-#define AM7XXX_HEADER_WIRE_SIZE 24
-
-struct am7xxx_header {
-	uint32_t packet_type;
-	uint8_t unknown0;
-	uint8_t header_data_len;
-	uint8_t unknown2;
-	uint8_t unknown3;
-	union {
-		struct am7xxx_generic_header data;
-		struct am7xxx_image_header image;
-		struct am7xxx_power_header power;
-	} header_data;
-};
-
-am7xxx_device am7xxx_init(void);
-
-void am7xxx_shutdown(am7xxx_device dev);
-
-int am7xxx_send_image(am7xxx_device dev,
+int am7xxx_open_device(am7xxx_context *ctx,
+		       am7xxx_device **dev,
+		       unsigned int device_index);
+
+int am7xxx_close_device(am7xxx_device *dev);
+
+int am7xxx_get_device_info(am7xxx_device *dev,
+			   unsigned int *native_width,
+			   unsigned int *native_height,
+			   unsigned int *unknown0,
+			   unsigned int *unknown1);
+
+int am7xxx_send_image(am7xxx_device *dev,
 		      am7xxx_image_format format,
 		      unsigned int width,
 		      unsigned int height,
-		      uint8_t *image,
+		      unsigned char *image,
 		      unsigned int size);
 
+/*
+ * NOTE: if we set the mode to AM7XXX_POWER_OFF we can't turn the
+ * display on again by using only am7xxx_set_power_mode().
+ *
+ * Remember to mention that when writing the API doc.
+ */
+int am7xxx_set_power_mode(am7xxx_device *dev, am7xxx_power_mode mode);
+
 #ifdef __cplusplus
 }
 #endif