Split am7xxx functions and definitions

[libam7xxx.git] / am7xxx.h

diff --git a/am7xxx.h b/am7xxx.h
new file mode 100644 (file)
index 0000000..d8d69d7
--- /dev/null
+++ b/am7xxx.h
@@ -0,0 +1,90 @@
+/* am7xxx - communication with AM7XXX based USB Pico Projectors and DPFs
+ *
+ * Copyright (C) 2011  Antonio Ospite <ospite@studenti.unina.it>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __AM7XXX_H
+#define __AM7XXX_H
+
+#include <stdint.h>
+#include <libusb-1.0/libusb.h>
+
+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;
+
+typedef enum {
+       AM7XXX_IMAGE_FORMAT_JPEG = 1,
+} am7xxx_image_format;
+
+typedef enum {
+       AM7XXX_POWER_OFF  = 0,
+       AM7XXX_POWER_LOW  = 1,
+       AM7XXX_POWER_MID  = 2,
+       AM7XXX_POWER_HIGH = 3,
+} am7xxx_power_mode;
+
+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;
+};
+
+/*
+ * 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
+ */
+
+struct am7xxx_header {
+       uint32_t packet_type;
+       uint8_t unknown0;
+       uint8_t header_len;
+       uint8_t unknown2;
+       uint8_t unknown3;
+       union {
+               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,
+                     am7xxx_image_format format,
+                     unsigned int width,
+                     unsigned int height,
+                     uint8_t *image,
+                     unsigned int size);
+
+#endif /* __AM7XXX_H */